--- /dev/null
+---
+ drivers/net/wireless/Kconfig | 31
+ drivers/net/wireless/Makefile | 2
+ drivers/net/wireless/acx/Kconfig | 113
+ drivers/net/wireless/acx/Makefile | 21
+ drivers/net/wireless/acx/acx.h | 14
+ drivers/net/wireless/acx/acx_config.h | 50
+ drivers/net/wireless/acx/acx_func.h | 710 ++
+ drivers/net/wireless/acx/acx_hw.h | 18
+ drivers/net/wireless/acx/acx_struct.h | 2114 ++++++++
+ drivers/net/wireless/acx/common.c | 7388 ++++++++++++++++++++++++++++
+ drivers/net/wireless/acx/conv.c | 504 +
+ drivers/net/wireless/acx/cs.c | 5703 +++++++++++++++++++++
+ drivers/net/wireless/acx/htcsable_acx.c | 118
+ drivers/net/wireless/acx/htcuniversal_acx.c | 108
+ drivers/net/wireless/acx/hx4700_acx.c | 108
+ drivers/net/wireless/acx/ioctl.c | 2748 ++++++++++
+ drivers/net/wireless/acx/mem.c | 5363 ++++++++++++++++++++
+ drivers/net/wireless/acx/pci.c | 4234 ++++++++++++++++
+ drivers/net/wireless/acx/rx3000_acx.c | 110
+ drivers/net/wireless/acx/setrate.c | 213
+ drivers/net/wireless/acx/usb.c | 1922 +++++++
+ drivers/net/wireless/acx/wlan.c | 424 +
+ drivers/net/wireless/acx/wlan_compat.h | 260
+ drivers/net/wireless/acx/wlan_hdr.h | 497 +
+ drivers/net/wireless/acx/wlan_mgmt.h | 582 ++
+ 25 files changed, 33355 insertions(+)
+
+Index: linux-2.6.22/drivers/net/wireless/acx/acx_config.h
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/acx_config.h 2007-08-23 18:46:40.000000000 +0200
+@@ -0,0 +1,50 @@
++#define ACX_RELEASE "v0.3.36"
++
++/*
++ * Test out all the channels in reg domain 0x10
++ */
++#define ACX_ALLOW_ALLCHANNELS
++
++/* set to 0 if you don't want any debugging code to be compiled in */
++/* set to 1 if you want some debugging */
++/* set to 2 if you want extensive debug log */
++#define ACX_DEBUG 0
++
++/*
++ * Since we'll be changing channels a lot
++#define ACX_DEFAULT_MSG (L_ASSOC|L_INIT)
++*/
++#define ACX_DEFAULT_MSG (L_ASSOC|L_INIT)
++
++/* assume 32bit I/O width
++ * (16bit is also compatible with Compact Flash) */
++#define ACX_IO_WIDTH 32
++
++/* Set this to 1 if you want monitor mode to use
++ * phy header. Currently it is not useful anyway since we
++ * don't know what useful info (if any) is in phy header.
++ * If you want faster/smaller code, say 0 here */
++#define WANT_PHY_HDR 0
++
++/* whether to do Tx descriptor cleanup in softirq (i.e. not in IRQ
++ * handler) or not. Note that doing it later does slightly increase
++ * system load, so still do that stuff in the IRQ handler for now,
++ * even if that probably means worse latency */
++#define TX_CLEANUP_IN_SOFTIRQ 0
++
++/* if you want very experimental 802.11 power save mode features */
++#define POWER_SAVE_80211 0
++
++/* if you want very early packet fragmentation bits and pieces */
++#define ACX_FRAGMENTATION 0
++
++/* Locking: */
++/* very talkative */
++/* #define PARANOID_LOCKING 1 */
++/* normal (use when bug-free) */
++#define DO_LOCKING 1
++/* else locking is disabled! */
++
++/* 0 - normal mode */
++/* 1 - development/debug: probe for IEs on modprobe */
++#define CMD_DISCOVERY 0
+Index: linux-2.6.22/drivers/net/wireless/acx/acx_func.h
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/acx_func.h 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,710 @@
++/***********************************************************************
++** Copyright (C) 2003 ACX100 Open Source Project
++**
++** The contents of this file are subject to the Mozilla Public
++** License Version 1.1 (the "License"); you may not use this file
++** except in compliance with the License. You may obtain a copy of
++** the License at http://www.mozilla.org/MPL/
++**
++** Software distributed under the License is distributed on an "AS
++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
++** implied. See the License for the specific language governing
++** rights and limitations under the License.
++**
++** Alternatively, the contents of this file may be used under the
++** terms of the GNU Public License version 2 (the "GPL"), in which
++** case the provisions of the GPL are applicable instead of the
++** above. If you wish to allow the use of your version of this file
++** only under the terms of the GPL and not to allow others to use
++** your version of this file under the MPL, indicate your decision
++** by deleting the provisions above and replace them with the notice
++** and other provisions required by the GPL. If you do not delete
++** the provisions above, a recipient may use your version of this
++** file under either the MPL or the GPL.
++** ---------------------------------------------------------------------
++** Inquiries regarding the ACX100 Open Source Project can be
++** made directly to:
++**
++** acx100-users@lists.sf.net
++** http://acx100.sf.net
++** ---------------------------------------------------------------------
++*/
++
++
++/***********************************************************************
++** LOGGING
++**
++** - Avoid SHOUTING needlessly. Avoid excessive verbosity.
++** Gradually remove messages which are old debugging aids.
++**
++** - Use printk() for messages which are to be always logged.
++** Supply either 'acx:' or '<devname>:' prefix so that user
++** can figure out who's speaking among other kernel chatter.
++** acx: is for general issues (e.g. "acx: no firmware image!")
++** while <devname>: is related to a particular device
++** (think about multi-card setup). Double check that message
++** is not confusing to the average user.
++**
++** - use printk KERN_xxx level only if message is not a WARNING
++** but is INFO, ERR etc.
++**
++** - Use printk_ratelimited() for messages which may flood
++** (e.g. "rx DUP pkt!").
++**
++** - Use log() for messages which may be omitted (and they
++** _will_ be omitted in non-debug builds). Note that
++** message levels may be disabled at compile-time selectively,
++** thus select them wisely. Example: L_DEBUG is the lowest
++** (most likely to be compiled out) -> use for less important stuff.
++**
++** - Do not print important stuff with log(), or else people
++** will never build non-debug driver.
++**
++** Style:
++** hex: capital letters, zero filled (e.g. 0x02AC)
++** str: dont start from capitals, no trailing periods ("tx: queue is stopped")
++*/
++#if ACX_DEBUG > 1
++
++void log_fn_enter(const char *funcname);
++void log_fn_exit(const char *funcname);
++void log_fn_exit_v(const char *funcname, int v);
++
++#define FN_ENTER \
++ do { \
++ if (unlikely(acx_debug & L_FUNC)) { \
++ log_fn_enter(__func__); \
++ } \
++ } while (0)
++
++#define FN_EXIT1(v) \
++ do { \
++ if (unlikely(acx_debug & L_FUNC)) { \
++ log_fn_exit_v(__func__, v); \
++ } \
++ } while (0)
++#define FN_EXIT0 \
++ do { \
++ if (unlikely(acx_debug & L_FUNC)) { \
++ log_fn_exit(__func__); \
++ } \
++ } while (0)
++
++#else
++
++#define FN_ENTER
++#define FN_EXIT1(v)
++#define FN_EXIT0
++
++#endif /* ACX_DEBUG > 1 */
++
++
++#if ACX_DEBUG
++
++#define log(chan, args...) \
++ do { \
++ if (acx_debug & (chan)) \
++ printk(KERN_DEBUG args); \
++ } while (0)
++#define printk_ratelimited(args...) printk(args)
++
++#else /* Non-debug build: */
++
++#define log(chan, args...)
++/* Standard way of log flood prevention */
++#define printk_ratelimited(args...) \
++do { \
++ if (printk_ratelimit()) \
++ printk(args); \
++} while (0)
++
++#endif /* ACX_DEBUG */
++
++void acx_print_mac(const char *head, const u8 *mac, const char *tail);
++
++/* Optimized out to nothing in non-debug build */
++static inline void
++acxlog_mac(int level, const char *head, const u8 *mac, const char *tail)
++{
++ if (acx_debug & level) {
++ acx_print_mac(head, mac, tail);
++ }
++}
++
++
++/***********************************************************************
++** MAC address helpers
++*/
++static inline void
++MAC_COPY(u8 *mac, const u8 *src)
++{
++ *(u32*)mac = *(u32*)src;
++ ((u16*)mac)[2] = ((u16*)src)[2];
++ /* kernel's memcpy will do the same: memcpy(dst, src, ETH_ALEN); */
++}
++
++static inline void
++MAC_FILL(u8 *mac, u8 val)
++{
++ memset(mac, val, ETH_ALEN);
++}
++
++static inline void
++MAC_BCAST(u8 *mac)
++{
++ ((u16*)mac)[2] = *(u32*)mac = -1;
++}
++
++static inline void
++MAC_ZERO(u8 *mac)
++{
++ ((u16*)mac)[2] = *(u32*)mac = 0;
++}
++
++static inline int
++mac_is_equal(const u8 *a, const u8 *b)
++{
++ /* can't beat this */
++ return memcmp(a, b, ETH_ALEN) == 0;
++}
++
++static inline int
++mac_is_bcast(const u8 *mac)
++{
++ /* AND together 4 first bytes with sign-extended 2 last bytes
++ ** Only bcast address gives 0xffffffff. +1 gives 0 */
++ return ( *(s32*)mac & ((s16*)mac)[2] ) + 1 == 0;
++}
++
++static inline int
++mac_is_zero(const u8 *mac)
++{
++ return ( *(u32*)mac | ((u16*)mac)[2] ) == 0;
++}
++
++static inline int
++mac_is_directed(const u8 *mac)
++{
++ return (mac[0] & 1)==0;
++}
++
++static inline int
++mac_is_mcast(const u8 *mac)
++{
++ return (mac[0] & 1) && !mac_is_bcast(mac);
++}
++
++#define MACSTR "%02X:%02X:%02X:%02X:%02X:%02X"
++#define MAC(bytevector) \
++ ((unsigned char *)bytevector)[0], \
++ ((unsigned char *)bytevector)[1], \
++ ((unsigned char *)bytevector)[2], \
++ ((unsigned char *)bytevector)[3], \
++ ((unsigned char *)bytevector)[4], \
++ ((unsigned char *)bytevector)[5]
++
++
++/***********************************************************************
++** Random helpers
++*/
++#define TO_STRING(x) #x
++#define STRING(x) TO_STRING(x)
++
++#define CLEAR_BIT(val, mask) ((val) &= ~(mask))
++#define SET_BIT(val, mask) ((val) |= (mask))
++
++/* undefined if v==0 */
++static inline unsigned int
++lowest_bit(u16 v)
++{
++ unsigned int n = 0;
++ while (!(v & 0xf)) { v>>=4; n+=4; }
++ while (!(v & 1)) { v>>=1; n++; }
++ return n;
++}
++
++/* undefined if v==0 */
++static inline unsigned int
++highest_bit(u16 v)
++{
++ unsigned int n = 0;
++ while (v>0xf) { v>>=4; n+=4; }
++ while (v>1) { v>>=1; n++; }
++ return n;
++}
++
++/* undefined if v==0 */
++static inline int
++has_only_one_bit(u16 v)
++{
++ return ((v-1) ^ v) >= v;
++}
++
++
++static inline int
++is_hidden_essid(char *essid)
++{
++ return (('\0' == essid[0]) ||
++ ((' ' == essid[0]) && ('\0' == essid[1])));
++}
++
++/***********************************************************************
++** LOCKING
++** We have adev->sem and adev->lock.
++**
++** We employ following naming convention in order to get locking right:
++**
++** acx_e_xxxx - external entry points called from process context.
++** It is okay to sleep. adev->sem is to be taken on entry.
++** acx_i_xxxx - external entry points possibly called from atomic context.
++** Sleeping is not allowed (and thus down(sem) is not legal!)
++** acx_s_xxxx - potentially sleeping functions. Do not ever call under lock!
++** acx_l_xxxx - functions which expect lock to be already taken.
++** rest - non-sleeping functions which do not require locking
++** but may be run under lock
++**
++** A small number of local helpers do not have acx_[eisl]_ prefix.
++** They are always close to caller and are to be reviewed locally.
++**
++** Theory of operation:
++**
++** All process-context entry points (_e_ functions) take sem
++** immediately. IRQ handler and other 'atomic-context' entry points
++** (_i_ functions) take lock immediately on entry, but dont take sem
++** because that might sleep.
++**
++** Thus *all* code is either protected by sem or lock, or both.
++**
++** Code which must not run concurrently with IRQ takes lock.
++** Such code is marked with _l_.
++**
++** This results in the following rules of thumb useful in code review:
++**
++** + If a function calls _s_ fn, it must be an _s_ itself.
++** + You can call _l_ fn only (a) from another _l_ fn
++** or (b) from _s_, _e_ or _i_ fn by taking lock, calling _l_,
++** and dropping lock.
++** + All IRQ code runs under lock.
++** + Any _s_ fn is running under sem.
++** + Code under sem can race only with IRQ code.
++** + Code under sem+lock cannot race with anything.
++*/
++
++/* These functions *must* be inline or they will break horribly on SPARC, due
++ * to its weird semantics for save/restore flags */
++
++#if defined(PARANOID_LOCKING) /* Lock debugging */
++
++void acx_lock_debug(acx_device_t *adev, const char* where);
++void acx_unlock_debug(acx_device_t *adev, const char* where);
++void acx_down_debug(acx_device_t *adev, const char* where);
++void acx_up_debug(acx_device_t *adev, const char* where);
++void acx_lock_unhold(void);
++void acx_sem_unhold(void);
++
++static inline void
++acx_lock_helper(acx_device_t *adev, unsigned long *fp, const char* where)
++{
++ acx_lock_debug(adev, where);
++ spin_lock_irqsave(&adev->lock, *fp);
++}
++static inline void
++acx_unlock_helper(acx_device_t *adev, unsigned long *fp, const char* where)
++{
++ acx_unlock_debug(adev, where);
++ spin_unlock_irqrestore(&adev->lock, *fp);
++}
++static inline void
++acx_down_helper(acx_device_t *adev, const char* where)
++{
++ acx_down_debug(adev, where);
++}
++static inline void
++acx_up_helper(acx_device_t *adev, const char* where)
++{
++ acx_up_debug(adev, where);
++}
++#define acx_lock(adev, flags) acx_lock_helper(adev, &(flags), __FILE__ ":" STRING(__LINE__))
++#define acx_unlock(adev, flags) acx_unlock_helper(adev, &(flags), __FILE__ ":" STRING(__LINE__))
++#define acx_sem_lock(adev) acx_down_helper(adev, __FILE__ ":" STRING(__LINE__))
++#define acx_sem_unlock(adev) acx_up_helper(adev, __FILE__ ":" STRING(__LINE__))
++
++#elif defined(DO_LOCKING)
++
++#define acx_lock(adev, flags) spin_lock_irqsave(&adev->lock, flags)
++#define acx_unlock(adev, flags) spin_unlock_irqrestore(&adev->lock, flags)
++#define acx_sem_lock(adev) down(&adev->sem)
++#define acx_sem_unlock(adev) up(&adev->sem)
++#define acx_lock_unhold() ((void)0)
++#define acx_sem_unhold() ((void)0)
++
++#else /* no locking! :( */
++
++#define acx_lock(adev, flags) ((void)0)
++#define acx_unlock(adev, flags) ((void)0)
++#define acx_sem_lock(adev) ((void)0)
++#define acx_sem_unlock(adev) ((void)0)
++#define acx_lock_unhold() ((void)0)
++#define acx_sem_unhold() ((void)0)
++
++#endif
++
++
++/***********************************************************************
++*/
++
++/* Can race with rx path (which is not protected by sem):
++** rx -> process_[re]assocresp() -> set_status(ASSOCIATED) -> wake_queue()
++** Can race with tx_complete IRQ:
++** IRQ -> acxpci_l_clean_txdesc -> acx_wake_queue
++** Review carefully all callsites */
++static inline void
++acx_stop_queue(struct net_device *ndev, const char *msg)
++{
++ if (netif_queue_stopped(ndev))
++ return;
++
++ netif_stop_queue(ndev);
++ if (msg)
++ log(L_BUFT, "tx: stop queue %s\n", msg);
++}
++
++static inline int
++acx_queue_stopped(struct net_device *ndev)
++{
++ return netif_queue_stopped(ndev);
++}
++
++/*
++static inline void
++acx_start_queue(struct net_device *ndev, const char *msg)
++{
++ netif_start_queue(ndev);
++ if (msg)
++ log(L_BUFT, "tx: start queue %s\n", msg);
++}
++*/
++
++static inline void
++acx_wake_queue(struct net_device *ndev, const char *msg)
++{
++ netif_wake_queue(ndev);
++ if (msg)
++ log(L_BUFT, "tx: wake queue %s\n", msg);
++}
++
++static inline void
++acx_carrier_off(struct net_device *ndev, const char *msg)
++{
++ netif_carrier_off(ndev);
++ if (msg)
++ log(L_BUFT, "tx: carrier off %s\n", msg);
++}
++
++static inline void
++acx_carrier_on(struct net_device *ndev, const char *msg)
++{
++ netif_carrier_on(ndev);
++ if (msg)
++ log(L_BUFT, "tx: carrier on %s\n", msg);
++}
++
++/* This function does not need locking UNLESS you call it
++** as acx_set_status(ACX_STATUS_4_ASSOCIATED), bacause this can
++** wake queue. This can race with stop_queue elsewhere. */
++void acx_set_status(acx_device_t *adev, u16 status);
++
++
++/***********************************************************************
++** Communication with firmware
++*/
++#define CMD_TIMEOUT_MS(n) (n)
++#define ACX_CMD_TIMEOUT_DEFAULT CMD_TIMEOUT_MS(50)
++
++#if ACX_DEBUG
++
++/* We want to log cmd names */
++int acxpci_s_issue_cmd_timeo_debug(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout, const char* cmdstr);
++int acxmem_s_issue_cmd_timeo_debug(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout, const char* cmdstr);
++int acxusb_s_issue_cmd_timeo_debug(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout, const char* cmdstr);
++static inline int
++acx_s_issue_cmd_timeo_debug(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout, const char* cmdstr)
++{
++ if (IS_MEM(adev))
++ return acxmem_s_issue_cmd_timeo_debug(adev, cmd, param, len, timeout, cmdstr);
++ if (IS_PCI(adev))
++ return acxpci_s_issue_cmd_timeo_debug(adev, cmd, param, len, timeout, cmdstr);
++ return acxusb_s_issue_cmd_timeo_debug(adev, cmd, param, len, timeout, cmdstr);
++}
++#define acx_s_issue_cmd(adev,cmd,param,len) \
++ acx_s_issue_cmd_timeo_debug(adev,cmd,param,len,ACX_CMD_TIMEOUT_DEFAULT,#cmd)
++#define acx_s_issue_cmd_timeo(adev,cmd,param,len,timeo) \
++ acx_s_issue_cmd_timeo_debug(adev,cmd,param,len,timeo,#cmd)
++int acx_s_configure_debug(acx_device_t *adev, void *pdr, int type, const char* str);
++#define acx_s_configure(adev,pdr,type) \
++ acx_s_configure_debug(adev,pdr,type,#type)
++int acx_s_interrogate_debug(acx_device_t *adev, void *pdr, int type, const char* str);
++#define acx_s_interrogate(adev,pdr,type) \
++ acx_s_interrogate_debug(adev,pdr,type,#type)
++
++#else
++
++int acxpci_s_issue_cmd_timeo(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout);
++int acxmem_s_issue_cmd_timeo(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout);
++int acxusb_s_issue_cmd_timeo(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout);
++static inline int
++acx_s_issue_cmd_timeo(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout)
++{
++ if (IS_MEM(adev))
++ return acxmem_s_issue_cmd_timeo(adev, cmd, param, len, timeout);
++ if (IS_PCI(adev))
++ return acxpci_s_issue_cmd_timeo(adev, cmd, param, len, timeout);
++ return acxusb_s_issue_cmd_timeo(adev, cmd, param, len, timeout);
++}
++static inline int
++acx_s_issue_cmd(acx_device_t *adev, unsigned cmd, void *param, unsigned len)
++{
++ if (IS_MEM(adev))
++ return acxmem_s_issue_cmd_timeo(adev, cmd, param, len, ACX_CMD_TIMEOUT_DEFAULT);
++ if (IS_PCI(adev))
++ return acxpci_s_issue_cmd_timeo(adev, cmd, param, len, ACX_CMD_TIMEOUT_DEFAULT);
++ return acxusb_s_issue_cmd_timeo(adev, cmd, param, len, ACX_CMD_TIMEOUT_DEFAULT);
++}
++int acx_s_configure(acx_device_t *adev, void *pdr, int type);
++int acx_s_interrogate(acx_device_t *adev, void *pdr, int type);
++
++#endif
++
++void acx_s_cmd_start_scan(acx_device_t *adev);
++
++
++/***********************************************************************
++** Ioctls
++*/
++int
++acx111pci_ioctl_info(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ struct iw_param *vwrq,
++ char *extra);
++int
++acx100pci_ioctl_set_phy_amp_bias(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ struct iw_param *vwrq,
++ char *extra);
++int
++acx100mem_ioctl_set_phy_amp_bias(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ struct iw_param *vwrq,
++ char *extra);
++
++
++/***********************************************************************
++** /proc
++*/
++#ifdef CONFIG_PROC_FS
++int acx_proc_register_entries(const struct net_device *ndev);
++int acx_proc_unregister_entries(const struct net_device *ndev);
++#else
++static inline int
++acx_proc_register_entries(const struct net_device *ndev) { return OK; }
++static inline int
++acx_proc_unregister_entries(const struct net_device *ndev) { return OK; }
++#endif
++
++
++/***********************************************************************
++*/
++firmware_image_t *acx_s_read_fw(struct device *dev, const char *file, u32 *size);
++int acxpci_s_upload_radio(acx_device_t *adev);
++int acxmem_s_upload_radio(acx_device_t *adev);
++
++
++/***********************************************************************
++** Unsorted yet :)
++*/
++int acxpci_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf);
++int acxmem_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf);
++int acxusb_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf);
++static inline int
++acx_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf)
++{
++ if (IS_MEM(adev))
++ return acxmem_s_read_phy_reg(adev, reg, charbuf);
++ if (IS_PCI(adev))
++ return acxpci_s_read_phy_reg(adev, reg, charbuf);
++ return acxusb_s_read_phy_reg(adev, reg, charbuf);
++}
++
++int acxpci_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value);
++int acxmem_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value);
++int acxusb_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value);
++static inline int
++acx_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value)
++{
++ if (IS_MEM(adev))
++ return acxmem_s_write_phy_reg(adev, reg, value);
++ if (IS_PCI(adev))
++ return acxpci_s_write_phy_reg(adev, reg, value);
++ return acxusb_s_write_phy_reg(adev, reg, value);
++}
++
++tx_t* acxpci_l_alloc_tx(acx_device_t *adev);
++tx_t* acxmem_l_alloc_tx(acx_device_t *adev);
++tx_t* acxusb_l_alloc_tx(acx_device_t *adev);
++static inline tx_t*
++acx_l_alloc_tx(acx_device_t *adev)
++{
++ if (IS_MEM(adev))
++ return acxmem_l_alloc_tx(adev);
++ if (IS_PCI(adev))
++ return acxpci_l_alloc_tx(adev);
++ return acxusb_l_alloc_tx(adev);
++}
++
++void acxusb_l_dealloc_tx(tx_t *tx_opaque);
++void acxmem_l_dealloc_tx(acx_device_t *adev, tx_t *tx_opaque);
++static inline void
++acx_l_dealloc_tx(acx_device_t *adev, tx_t *tx_opaque)
++{
++#ifdef ACX_MEM
++ acxmem_l_dealloc_tx (adev, tx_opaque);
++#else
++ if (IS_USB(adev))
++ acxusb_l_dealloc_tx(tx_opaque);
++#endif
++}
++
++void* acxpci_l_get_txbuf(acx_device_t *adev, tx_t *tx_opaque);
++void* acxmem_l_get_txbuf(acx_device_t *adev, tx_t *tx_opaque);
++void* acxusb_l_get_txbuf(acx_device_t *adev, tx_t *tx_opaque);
++static inline void*
++acx_l_get_txbuf(acx_device_t *adev, tx_t *tx_opaque)
++{
++#if defined (ACX_MEM)
++ return acxmem_l_get_txbuf(adev, tx_opaque);
++#else
++ if (IS_PCI(adev))
++ return acxpci_l_get_txbuf(adev, tx_opaque);
++ return acxusb_l_get_txbuf(adev, tx_opaque);
++#endif
++}
++
++void acxpci_l_tx_data(acx_device_t *adev, tx_t *tx_opaque, int len);
++void acxmem_l_tx_data(acx_device_t *adev, tx_t *tx_opaque, int len);
++void acxusb_l_tx_data(acx_device_t *adev, tx_t *tx_opaque, int len);
++static inline void
++acx_l_tx_data(acx_device_t *adev, tx_t *tx_opaque, int len)
++{
++#if defined (ACX_MEM)
++ acxmem_l_tx_data(adev, tx_opaque, len);
++#else
++ if (IS_PCI(adev))
++ acxpci_l_tx_data(adev, tx_opaque, len);
++ else
++ acxusb_l_tx_data(adev, tx_opaque, len);
++#endif
++}
++
++static inline wlan_hdr_t*
++acx_get_wlan_hdr(acx_device_t *adev, const rxbuffer_t *rxbuf)
++{
++ return (wlan_hdr_t*)((u8*)&rxbuf->hdr_a3 + adev->phy_header_len);
++}
++
++void acxpci_l_power_led(acx_device_t *adev, int enable);
++int acxpci_read_eeprom_byte(acx_device_t *adev, u32 addr, u8 *charbuf);
++unsigned int acxpci_l_clean_txdesc(acx_device_t *adev);
++void acxpci_l_clean_txdesc_emergency(acx_device_t *adev);
++int acxpci_s_create_hostdesc_queues(acx_device_t *adev);
++void acxpci_create_desc_queues(acx_device_t *adev, u32 tx_queue_start, u32 rx_queue_start);
++void acxpci_free_desc_queues(acx_device_t *adev);
++char* acxpci_s_proc_diag_output(char *p, acx_device_t *adev);
++int acxpci_proc_eeprom_output(char *p, acx_device_t *adev);
++void acxpci_set_interrupt_mask(acx_device_t *adev);
++int acx100pci_s_set_tx_level(acx_device_t *adev, u8 level_dbm);
++
++void acxmem_l_power_led(acx_device_t *adev, int enable);
++int acxmem_read_eeprom_byte(acx_device_t *adev, u32 addr, u8 *charbuf);
++unsigned int acxmem_l_clean_txdesc(acx_device_t *adev);
++void acxmem_l_clean_txdesc_emergency(acx_device_t *adev);
++int acxmem_s_create_hostdesc_queues(acx_device_t *adev);
++void acxmem_create_desc_queues(acx_device_t *adev, u32 tx_queue_start, u32 rx_queue_start);
++void acxmem_free_desc_queues(acx_device_t *adev);
++char* acxmem_s_proc_diag_output(char *p, acx_device_t *adev);
++int acxmem_proc_eeprom_output(char *p, acx_device_t *adev);
++void acxmem_set_interrupt_mask(acx_device_t *adev);
++int acx100mem_s_set_tx_level(acx_device_t *adev, u8 level_dbm);
++
++void acx_s_msleep(int ms);
++int acx_s_init_mac(acx_device_t *adev);
++void acx_set_reg_domain(acx_device_t *adev, unsigned char reg_dom_id);
++void acx_set_timer(acx_device_t *adev, int timeout_us);
++void acx_update_capabilities(acx_device_t *adev);
++void acx_s_start(acx_device_t *adev);
++
++void acx_s_update_card_settings(acx_device_t *adev);
++void acx_s_parse_configoption(acx_device_t *adev, const acx111_ie_configoption_t *pcfg);
++void acx_l_update_ratevector(acx_device_t *adev);
++
++void acx_init_task_scheduler(acx_device_t *adev);
++void acx_schedule_task(acx_device_t *adev, unsigned int set_flag);
++
++int acx_e_ioctl_old(struct net_device *ndev, struct ifreq *ifr, int cmd);
++
++client_t *acx_l_sta_list_get(acx_device_t *adev, const u8 *address);
++void acx_l_sta_list_del(acx_device_t *adev, client_t *clt);
++
++int acx_l_transmit_disassoc(acx_device_t *adev, client_t *clt);
++void acx_i_timer(unsigned long a);
++int acx_s_complete_scan(acx_device_t *adev);
++
++struct sk_buff *acx_rxbuf_to_ether(acx_device_t *adev, rxbuffer_t *rxbuf);
++int acx_ether_to_txbuf(acx_device_t *adev, void *txbuf, const struct sk_buff *skb);
++
++u8 acx_signal_determine_quality(u8 signal, u8 noise);
++
++void acx_l_process_rxbuf(acx_device_t *adev, rxbuffer_t *rxbuf);
++void acx_l_handle_txrate_auto(acx_device_t *adev, struct client *txc,
++ u16 intended_rate, u8 rate100, u16 rate111, u8 error,
++ int pkts_to_ignore);
++
++void acx_dump_bytes(const void *, int);
++void acx_log_bad_eid(wlan_hdr_t* hdr, int len, wlan_ie_t* ie_ptr);
++
++u8 acx_rate111to100(u16);
++
++void acx_s_set_defaults(acx_device_t *adev);
++
++#if !ACX_DEBUG
++static inline const char* acx_get_packet_type_string(u16 fc) { return ""; }
++#else
++const char* acx_get_packet_type_string(u16 fc);
++#endif
++const char* acx_cmd_status_str(unsigned int state);
++
++int acx_i_start_xmit(struct sk_buff *skb, struct net_device *ndev);
++
++void great_inquisitor(acx_device_t *adev);
++
++void acx_s_get_firmware_version(acx_device_t *adev);
++void acx_display_hardware_details(acx_device_t *adev);
++
++int acx_e_change_mtu(struct net_device *ndev, int mtu);
++struct net_device_stats* acx_e_get_stats(struct net_device *ndev);
++struct iw_statistics* acx_e_get_wireless_stats(struct net_device *ndev);
++
++#ifdef ACX_MEM
++int __init acxmem_e_init_module(void);
++void __exit acxmem_e_cleanup_module(void);
++void acxmem_e_release(struct device *dev);
++#else
++int __init acxpci_e_init_module(void);
++int __init acxusb_e_init_module(void);
++void __exit acxpci_e_cleanup_module(void);
++void __exit acxusb_e_cleanup_module(void);
++#endif
++int __init acx_cs_init(void);
++void __exit acx_cs_cleanup(void);
+Index: linux-2.6.22/drivers/net/wireless/acx/acx.h
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/acx.h 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,14 @@
++#if defined(CONFIG_ACX_MEM) && !defined(ACX_MEM)
++#define ACX_MEM
++#endif
++
++#if defined(CONFIG_ACX_CS) && !defined(ACX_MEM)
++#define ACX_MEM
++#endif
++
++#include "acx_config.h"
++#include "wlan_compat.h"
++#include "wlan_hdr.h"
++#include "wlan_mgmt.h"
++#include "acx_struct.h"
++#include "acx_func.h"
+Index: linux-2.6.22/drivers/net/wireless/acx/acx_hw.h
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/acx_hw.h 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,18 @@
++/*
++ * Interface for ACX slave memory driver
++ *
++ * Copyright (c) 2006 SDG Systems, LLC
++ *
++ * GPL
++ *
++ */
++
++#ifndef _ACX_HW_H
++#define _ACX_HW_H
++
++struct acx_hardware_data {
++ int (*start_hw)( void );
++ int (*stop_hw)( void );
++};
++
++#endif /* _ACX_HW_H */
+Index: linux-2.6.22/drivers/net/wireless/acx/acx_struct.h
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/acx_struct.h 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,2114 @@
++/***********************************************************************
++** Copyright (C) 2003 ACX100 Open Source Project
++**
++** The contents of this file are subject to the Mozilla Public
++** License Version 1.1 (the "License"); you may not use this file
++** except in compliance with the License. You may obtain a copy of
++** the License at http://www.mozilla.org/MPL/
++**
++** Software distributed under the License is distributed on an "AS
++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
++** implied. See the License for the specific language governing
++** rights and limitations under the License.
++**
++** Alternatively, the contents of this file may be used under the
++** terms of the GNU Public License version 2 (the "GPL"), in which
++** case the provisions of the GPL are applicable instead of the
++** above. If you wish to allow the use of your version of this file
++** only under the terms of the GPL and not to allow others to use
++** your version of this file under the MPL, indicate your decision
++** by deleting the provisions above and replace them with the notice
++** and other provisions required by the GPL. If you do not delete
++** the provisions above, a recipient may use your version of this
++** file under either the MPL or the GPL.
++** ---------------------------------------------------------------------
++** Inquiries regarding the ACX100 Open Source Project can be
++** made directly to:
++**
++** acx100-users@lists.sf.net
++** http://acx100.sf.net
++** ---------------------------------------------------------------------
++*/
++
++/***********************************************************************
++** Forward declarations of types
++*/
++typedef struct tx tx_t;
++typedef struct acx_device acx_device_t;
++typedef struct client client_t;
++typedef struct rxdesc rxdesc_t;
++typedef struct txdesc txdesc_t;
++typedef struct rxhostdesc rxhostdesc_t;
++typedef struct txhostdesc txhostdesc_t;
++
++
++/***********************************************************************
++** Debug / log functionality
++*/
++enum {
++ L_LOCK = (ACX_DEBUG>1)*0x0001, /* locking debug log */
++ L_INIT = (ACX_DEBUG>0)*0x0002, /* special card initialization logging */
++ L_IRQ = (ACX_DEBUG>0)*0x0004, /* interrupt stuff */
++ L_ASSOC = (ACX_DEBUG>0)*0x0008, /* assocation (network join) and station log */
++ L_FUNC = (ACX_DEBUG>1)*0x0020, /* logging of function enter / leave */
++ L_XFER = (ACX_DEBUG>1)*0x0080, /* logging of transfers and mgmt */
++ L_DATA = (ACX_DEBUG>1)*0x0100, /* logging of transfer data */
++ L_DEBUG = (ACX_DEBUG>1)*0x0200, /* log of debug info */
++ L_IOCTL = (ACX_DEBUG>0)*0x0400, /* log ioctl calls */
++ L_CTL = (ACX_DEBUG>1)*0x0800, /* log of low-level ctl commands */
++ L_BUFR = (ACX_DEBUG>1)*0x1000, /* debug rx buffer mgmt (ring buffer etc.) */
++ L_XFER_BEACON = (ACX_DEBUG>1)*0x2000, /* also log beacon packets */
++ L_BUFT = (ACX_DEBUG>1)*0x4000, /* debug tx buffer mgmt (ring buffer etc.) */
++ L_USBRXTX = (ACX_DEBUG>0)*0x8000, /* debug USB rx/tx operations */
++ L_BUF = L_BUFR + L_BUFT,
++ L_ANY = 0xffff
++};
++
++#if ACX_DEBUG
++extern unsigned int acx_debug;
++#else
++enum { acx_debug = 0 };
++#endif
++
++
++/***********************************************************************
++** Random helpers
++*/
++#define ACX_PACKED __attribute__ ((packed))
++
++#define VEC_SIZE(a) (sizeof(a)/sizeof(a[0]))
++
++/* Use worker_queues for 2.5/2.6 kernels and queue tasks for 2.4 kernels
++ (used for the 'bottom half' of the interrupt routine) */
++
++#include <linux/workqueue.h>
++#define USE_WORKER_TASKS
++#define WORK_STRUCT struct work_struct
++#define SCHEDULE_WORK schedule_work
++#define FLUSH_SCHEDULED_WORK flush_scheduled_work
++
++
++/***********************************************************************
++** Constants
++*/
++#define OK 0
++#define NOT_OK 1
++
++/* The supported chip models */
++#define CHIPTYPE_ACX100 1
++#define CHIPTYPE_ACX111 2
++
++#define IS_ACX100(adev) ((adev)->chip_type == CHIPTYPE_ACX100)
++#define IS_ACX111(adev) ((adev)->chip_type == CHIPTYPE_ACX111)
++
++/* Supported interfaces */
++#define DEVTYPE_PCI 0
++#define DEVTYPE_USB 1
++#define DEVTYPE_MEM 2
++
++#if !defined(CONFIG_ACX_PCI) && !defined(CONFIG_ACX_USB) && !defined(CONFIG_ACX_MEM) && !defined(CONFIG_ACX_CS)
++#error Driver must include PCI, USB, PCMCIA or memory mapped interface support. You selected none of them.
++#endif
++
++#if defined(CONFIG_ACX_PCI)
++ #if !defined(CONFIG_ACX_USB)
++ #define IS_PCI(adev) 1
++ #else
++ #define IS_PCI(adev) ((adev)->dev_type == DEVTYPE_PCI)
++ #endif
++#else
++ #define IS_PCI(adev) 0
++#endif
++
++#if defined(CONFIG_ACX_USB)
++ #if !defined(CONFIG_ACX_PCI)
++ #define IS_USB(adev) 1
++ #else
++ #define IS_USB(adev) ((adev)->dev_type == DEVTYPE_USB)
++ #endif
++#else
++ #define IS_USB(adev) 0
++#endif
++
++#if defined(CONFIG_ACX_MEM) || defined(CONFIG_ACX_CS)
++ #define IS_MEM(adev) 1
++#else
++ #define IS_MEM(adev) 0
++#endif
++
++/* Driver defaults */
++#define DEFAULT_DTIM_INTERVAL 10
++/* used to be 2048, but FreeBSD driver changed it to 4096 to work properly
++** in noisy wlans */
++#define DEFAULT_MSDU_LIFETIME 4096
++#define DEFAULT_RTS_THRESHOLD 2312 /* max. size: disable RTS mechanism */
++#define DEFAULT_BEACON_INTERVAL 100
++
++#define ACX100_BAP_DATALEN_MAX 4096
++#define ACX100_RID_GUESSING_MAXLEN 2048 /* I'm not really sure */
++#define ACX100_RIDDATA_MAXLEN ACX100_RID_GUESSING_MAXLEN
++
++/* Support Constants */
++/* Radio type names, found in Win98 driver's TIACXLN.INF */
++#define RADIO_MAXIM_0D 0x0d
++#define RADIO_RFMD_11 0x11
++#define RADIO_RALINK_15 0x15
++/* used in ACX111 cards (WG311v2, WL-121, ...): */
++#define RADIO_RADIA_16 0x16
++/* most likely *sometimes* used in ACX111 cards: */
++#define RADIO_UNKNOWN_17 0x17
++/* FwRad19.bin was found in a Safecom driver; must be an ACX111 radio: */
++#define RADIO_UNKNOWN_19 0x19
++#define RADIO_UNKNOWN_1B 0x1b /* radio in SafeCom SWLUT-54125 USB adapter; entirely unknown!! */
++
++/* Controller Commands */
++/* can be found in table cmdTable in firmware "Rev. 1.5.0" (FW150) */
++#define ACX1xx_CMD_RESET 0x00
++#define ACX1xx_CMD_INTERROGATE 0x01
++#define ACX1xx_CMD_CONFIGURE 0x02
++#define ACX1xx_CMD_ENABLE_RX 0x03
++#define ACX1xx_CMD_ENABLE_TX 0x04
++#define ACX1xx_CMD_DISABLE_RX 0x05
++#define ACX1xx_CMD_DISABLE_TX 0x06
++#define ACX1xx_CMD_FLUSH_QUEUE 0x07
++#define ACX1xx_CMD_SCAN 0x08
++#define ACX1xx_CMD_STOP_SCAN 0x09
++#define ACX1xx_CMD_CONFIG_TIM 0x0a
++#define ACX1xx_CMD_JOIN 0x0b
++#define ACX1xx_CMD_WEP_MGMT 0x0c
++#ifdef OLD_FIRMWARE_VERSIONS
++#define ACX100_CMD_HALT 0x0e /* mapped to unknownCMD in FW150 */
++#else
++#define ACX1xx_CMD_MEM_READ 0x0d
++#define ACX1xx_CMD_MEM_WRITE 0x0e
++#endif
++#define ACX1xx_CMD_SLEEP 0x0f
++#define ACX1xx_CMD_WAKE 0x10
++#define ACX1xx_CMD_UNKNOWN_11 0x11 /* mapped to unknownCMD in FW150 */
++#define ACX100_CMD_INIT_MEMORY 0x12
++#define ACX1FF_CMD_DISABLE_RADIO 0x12 /* new firmware? TNETW1450? */
++#define ACX1xx_CMD_CONFIG_BEACON 0x13
++#define ACX1xx_CMD_CONFIG_PROBE_RESPONSE 0x14
++#define ACX1xx_CMD_CONFIG_NULL_DATA 0x15
++#define ACX1xx_CMD_CONFIG_PROBE_REQUEST 0x16
++#define ACX1xx_CMD_FCC_TEST 0x17
++#define ACX1xx_CMD_RADIOINIT 0x18
++#define ACX111_CMD_RADIOCALIB 0x19
++#define ACX1FF_CMD_NOISE_HISTOGRAM 0x1c /* new firmware? TNETW1450? */
++#define ACX1FF_CMD_RX_RESET 0x1d /* new firmware? TNETW1450? */
++#define ACX1FF_CMD_LNA_CONTROL 0x20 /* new firmware? TNETW1450? */
++#define ACX1FF_CMD_CONTROL_DBG_TRACE 0x21 /* new firmware? TNETW1450? */
++
++/* 'After Interrupt' Commands */
++#define ACX_AFTER_IRQ_CMD_STOP_SCAN 0x01
++#define ACX_AFTER_IRQ_CMD_ASSOCIATE 0x02
++#define ACX_AFTER_IRQ_CMD_RADIO_RECALIB 0x04
++#define ACX_AFTER_IRQ_UPDATE_CARD_CFG 0x08
++#define ACX_AFTER_IRQ_TX_CLEANUP 0x10
++#define ACX_AFTER_IRQ_COMPLETE_SCAN 0x20
++#define ACX_AFTER_IRQ_RESTART_SCAN 0x40
++
++/***********************************************************************
++** Tx/Rx buffer sizes and watermarks
++**
++** This will alloc and use DMAable buffers of
++** WLAN_A4FR_MAXLEN_WEP_FCS * (RX_CNT + TX_CNT) bytes
++** RX/TX_CNT=32 -> ~150k DMA buffers
++** RX/TX_CNT=16 -> ~75k DMA buffers
++**
++** 2005-10-10: reduced memory usage by lowering both to 16
++*/
++#define RX_CNT 16
++#define TX_CNT 16
++
++/* we clean up txdescs when we have N free txdesc: */
++#define TX_CLEAN_BACKLOG (TX_CNT/4)
++#define TX_START_CLEAN (TX_CNT - TX_CLEAN_BACKLOG)
++#define TX_EMERG_CLEAN 2
++/* we stop queue if we have < N free txbufs: */
++#define TX_STOP_QUEUE 3
++/* we start queue if we have >= N free txbufs: */
++#define TX_START_QUEUE 5
++
++/***********************************************************************
++** Interrogate/Configure cmd constants
++**
++** NB: length includes JUST the data part of the IE
++** (does not include size of the (type,len) pair)
++**
++** TODO: seems that acx100, acx100usb, acx111 have some differences,
++** fix code with regard to this!
++*/
++
++#define DEF_IE(name, val, len) enum { ACX##name=val, ACX##name##_LEN=len }
++
++/* Information Elements: Network Parameters, Static Configuration Entities */
++/* these are handled by real_cfgtable in firmware "Rev 1.5.0" (FW150) */
++DEF_IE(1xx_IE_UNKNOWN_00 ,0x0000, -1); /* mapped to cfgInvalid in FW150 */
++DEF_IE(100_IE_ACX_TIMER ,0x0001, 0x10);
++DEF_IE(1xx_IE_POWER_MGMT ,0x0002, 0x06); /* TNETW1450: length 0x18!! */
++DEF_IE(1xx_IE_QUEUE_CONFIG ,0x0003, 0x1c);
++DEF_IE(100_IE_BLOCK_SIZE ,0x0004, 0x02);
++DEF_IE(1FF_IE_SLOT_TIME ,0x0004, 0x08); /* later firmware versions only? */
++DEF_IE(1xx_IE_MEMORY_CONFIG_OPTIONS ,0x0005, 0x14);
++DEF_IE(1FF_IE_QUEUE_HEAD ,0x0005, 0x14 /* FIXME: length? */);
++DEF_IE(1xx_IE_RATE_FALLBACK ,0x0006, 0x01); /* TNETW1450: length 2 */
++DEF_IE(100_IE_WEP_OPTIONS ,0x0007, 0x03);
++DEF_IE(111_IE_RADIO_BAND ,0x0007, -1);
++DEF_IE(1FF_IE_TIMING_CFG ,0x0007, -1); /* later firmware versions; TNETW1450 only? */
++DEF_IE(100_IE_SSID ,0x0008, 0x20); /* huh? */
++DEF_IE(1xx_IE_MEMORY_MAP ,0x0008, 0x28); /* huh? TNETW1450 has length 0x40!! */
++DEF_IE(1xx_IE_SCAN_STATUS ,0x0009, 0x04); /* mapped to cfgInvalid in FW150 */
++DEF_IE(1xx_IE_ASSOC_ID ,0x000a, 0x02);
++DEF_IE(1xx_IE_UNKNOWN_0B ,0x000b, -1); /* mapped to cfgInvalid in FW150 */
++DEF_IE(1FF_IE_TX_POWER_LEVEL_TABLE ,0x000b, 0x18); /* later firmware versions; TNETW1450 only? */
++DEF_IE(100_IE_UNKNOWN_0C ,0x000c, -1); /* very small implementation in FW150! */
++/* ACX100 has an equivalent struct in the cmd mailbox directly after reset.
++ * 0x14c seems extremely large, will trash stack on failure (memset!)
++ * in case of small input struct --> OOPS! */
++DEF_IE(111_IE_CONFIG_OPTIONS ,0x000c, 0x14c);
++DEF_IE(1xx_IE_FWREV ,0x000d, 0x18);
++DEF_IE(1xx_IE_FCS_ERROR_COUNT ,0x000e, 0x04);
++DEF_IE(1xx_IE_MEDIUM_USAGE ,0x000f, 0x08);
++DEF_IE(1xx_IE_RXCONFIG ,0x0010, 0x04);
++DEF_IE(100_IE_UNKNOWN_11 ,0x0011, -1); /* NONBINARY: large implementation in FW150! link quality readings or so? */
++DEF_IE(111_IE_QUEUE_THRESH ,0x0011, -1);
++DEF_IE(100_IE_UNKNOWN_12 ,0x0012, -1); /* NONBINARY: VERY large implementation in FW150!! */
++DEF_IE(111_IE_BSS_POWER_SAVE ,0x0012, /* -1 */ 2);
++DEF_IE(1xx_IE_FIRMWARE_STATISTICS ,0x0013, 0x9c); /* TNETW1450: length 0x134!! */
++DEF_IE(1FF_IE_RX_INTR_CONFIG ,0x0014, 0x14); /* later firmware versions, TNETW1450 only? */
++DEF_IE(1xx_IE_FEATURE_CONFIG ,0x0015, 0x08);
++DEF_IE(111_IE_KEY_CHOOSE ,0x0016, 0x04); /* for rekeying. really len=4?? */
++DEF_IE(1FF_IE_MISC_CONFIG_TABLE ,0x0017, 0x04); /* later firmware versions, TNETW1450 only? */
++DEF_IE(1FF_IE_WONE_CONFIG ,0x0018, -1); /* later firmware versions, TNETW1450 only? */
++DEF_IE(1FF_IE_TID_CONFIG ,0x001a, 0x2c); /* later firmware versions, TNETW1450 only? */
++DEF_IE(1FF_IE_CALIB_ASSESSMENT ,0x001e, 0x04); /* later firmware versions, TNETW1450 only? */
++DEF_IE(1FF_IE_BEACON_FILTER_OPTIONS ,0x001f, 0x02); /* later firmware versions, TNETW1450 only? */
++DEF_IE(1FF_IE_LOW_RSSI_THRESH_OPT ,0x0020, 0x04); /* later firmware versions, TNETW1450 only? */
++DEF_IE(1FF_IE_NOISE_HISTOGRAM_RESULTS ,0x0021, 0x30); /* later firmware versions, TNETW1450 only? */
++DEF_IE(1FF_IE_PACKET_DETECT_THRESH ,0x0023, 0x04); /* later firmware versions, TNETW1450 only? */
++DEF_IE(1FF_IE_TX_CONFIG_OPTIONS ,0x0024, 0x04); /* later firmware versions, TNETW1450 only? */
++DEF_IE(1FF_IE_CCA_THRESHOLD ,0x0025, 0x02); /* later firmware versions, TNETW1450 only? */
++DEF_IE(1FF_IE_EVENT_MASK ,0x0026, 0x08); /* later firmware versions, TNETW1450 only? */
++DEF_IE(1FF_IE_DTIM_PERIOD ,0x0027, 0x02); /* later firmware versions, TNETW1450 only? */
++DEF_IE(1FF_IE_ACI_CONFIG_SET ,0x0029, 0x06); /* later firmware versions; maybe TNETW1450 only? */
++DEF_IE(1FF_IE_EEPROM_VER ,0x0030, 0x04); /* later firmware versions; maybe TNETW1450 only? */
++DEF_IE(1xx_IE_DOT11_STATION_ID ,0x1001, 0x06);
++DEF_IE(100_IE_DOT11_UNKNOWN_1002 ,0x1002, -1); /* mapped to cfgInvalid in FW150 */
++DEF_IE(111_IE_DOT11_FRAG_THRESH ,0x1002, -1); /* mapped to cfgInvalid in FW150; TNETW1450 has length 2!! */
++DEF_IE(100_IE_DOT11_BEACON_PERIOD ,0x1003, 0x02); /* mapped to cfgInvalid in FW150 */
++DEF_IE(1xx_IE_DOT11_DTIM_PERIOD ,0x1004, -1); /* mapped to cfgInvalid in FW150 */
++DEF_IE(1FF_IE_DOT11_MAX_RX_LIFETIME ,0x1004, -1); /* later firmware versions; maybe TNETW1450 only? */
++DEF_IE(1xx_IE_DOT11_SHORT_RETRY_LIMIT ,0x1005, 0x01); /* TNETW1450: length 2 */
++DEF_IE(1xx_IE_DOT11_LONG_RETRY_LIMIT ,0x1006, 0x01); /* TNETW1450: length 2 */
++DEF_IE(100_IE_DOT11_WEP_DEFAULT_KEY_WRITE ,0x1007, 0x20); /* configure default keys; TNETW1450 has length 0x24!! */
++DEF_IE(1xx_IE_DOT11_MAX_XMIT_MSDU_LIFETIME ,0x1008, 0x04);
++DEF_IE(1xx_IE_DOT11_GROUP_ADDR ,0x1009, -1);
++DEF_IE(1xx_IE_DOT11_CURRENT_REG_DOMAIN ,0x100a, 0x02);
++/* It's harmless to have larger struct. Use USB case always. */
++DEF_IE(1xx_IE_DOT11_CURRENT_ANTENNA ,0x100b, 0x02); /* in fact len=1 for PCI */
++DEF_IE(1xx_IE_DOT11_UNKNOWN_100C ,0x100c, -1); /* mapped to cfgInvalid in FW150 */
++DEF_IE(1xx_IE_DOT11_TX_POWER_LEVEL ,0x100d, 0x01); /* TNETW1450 has length 2!! */
++DEF_IE(1xx_IE_DOT11_CURRENT_CCA_MODE ,0x100e, 0x02); /* in fact len=1 for PCI */
++/* USB doesn't return anything - len==0?! */
++DEF_IE(100_IE_DOT11_ED_THRESHOLD ,0x100f, 0x04);
++DEF_IE(1xx_IE_DOT11_WEP_DEFAULT_KEY_SET ,0x1010, 0x01); /* set default key ID; TNETW1450: length 2 */
++DEF_IE(100_IE_DOT11_UNKNOWN_1011 ,0x1011, -1); /* mapped to cfgInvalid in FW150 */
++DEF_IE(1FF_IE_DOT11_CURR_5GHZ_REGDOM ,0x1011, -1); /* later firmware versions; maybe TNETW1450 only? */
++DEF_IE(100_IE_DOT11_UNKNOWN_1012 ,0x1012, -1); /* mapped to cfgInvalid in FW150 */
++DEF_IE(100_IE_DOT11_UNKNOWN_1013 ,0x1013, -1); /* mapped to cfgInvalid in FW150 */
++
++#if 0
++/* Experimentally obtained on acx100, fw 1.9.8.b
++** -1 means that fw returned 'invalid IE'
++** 0200 FC00 nnnn... are test read contents: u16 type, u16 len, data
++** (AA are poison bytes marking bytes not written by fw)
++**
++** Looks like acx100 fw does not update len field (thus len=256-4=FC here)
++** A number of IEs seem to trash type,len fields
++** IEs marked 'huge' return gobs of data (no poison bytes remain)
++*/
++DEF_IE(100_IE_INVAL_00, 0x0000, -1);
++DEF_IE(100_IE_INVAL_01, 0x0001, -1); /* IE_ACX_TIMER, len=16 on older fw */
++DEF_IE(100_IE_POWER_MGMT, 0x0002, 4); /* 0200FC00 00040000 AAAAAAAA */
++DEF_IE(100_IE_QUEUE_CONFIG, 0x0003, 28); /* 0300FC00 48060000 9CAD0000 0101AAAA DCB00000 E4B00000 9CAA0000 00AAAAAA */
++DEF_IE(100_IE_BLOCK_SIZE, 0x0004, 2); /* 0400FC00 0001AAAA AAAAAAAA AAAAAAAA */
++/* write only: */
++DEF_IE(100_IE_MEMORY_CONFIG_OPTIONS, 0x0005, 20);
++DEF_IE(100_IE_RATE_FALLBACK, 0x0006, 1); /* 0600FC00 00AAAAAA AAAAAAAA AAAAAAAA */
++/* write only: */
++DEF_IE(100_IE_WEP_OPTIONS, 0x0007, 3);
++DEF_IE(100_IE_MEMORY_MAP, 0x0008, 40); /* huge: 0800FC00 30000000 6CA20000 70A20000... */
++/* gives INVAL on read: */
++DEF_IE(100_IE_SCAN_STATUS, 0x0009, -1);
++DEF_IE(100_IE_ASSOC_ID, 0x000a, 2); /* huge: 0A00FC00 00000000 01040800 00000000... */
++DEF_IE(100_IE_INVAL_0B, 0x000b, -1);
++/* 'command rejected': */
++DEF_IE(100_IE_CONFIG_OPTIONS, 0x000c, -3);
++DEF_IE(100_IE_FWREV, 0x000d, 24); /* 0D00FC00 52657620 312E392E 382E6200 AAAAAAAA AAAAAAAA 05050201 AAAAAAAA */
++DEF_IE(100_IE_FCS_ERROR_COUNT, 0x000e, 4);
++DEF_IE(100_IE_MEDIUM_USAGE, 0x000f, 8); /* E41F0000 2D780300 FCC91300 AAAAAAAA */
++DEF_IE(100_IE_RXCONFIG, 0x0010, 4); /* 1000FC00 00280000 AAAAAAAA AAAAAAAA */
++DEF_IE(100_IE_QUEUE_THRESH, 0x0011, 12); /* 1100FC00 AAAAAAAA 00000000 00000000 */
++DEF_IE(100_IE_BSS_POWER_SAVE, 0x0012, 1); /* 1200FC00 00AAAAAA AAAAAAAA AAAAAAAA */
++/* read only, variable len */
++DEF_IE(100_IE_FIRMWARE_STATISTICS, 0x0013, 256); /* 0000AC00 00000000 ... */
++DEF_IE(100_IE_INT_CONFIG, 0x0014, 20); /* 00000000 00000000 00000000 00000000 5D74D105 00000000 AAAAAAAA AAAAAAAA */
++DEF_IE(100_IE_FEATURE_CONFIG, 0x0015, 8); /* 1500FC00 16000000 AAAAAAAA AAAAAAAA */
++/* returns 'invalid MAC': */
++DEF_IE(100_IE_KEY_CHOOSE, 0x0016, -4);
++DEF_IE(100_IE_INVAL_17, 0x0017, -1);
++DEF_IE(100_IE_UNKNOWN_18, 0x0018, 0); /* null len?! 1800FC00 AAAAAAAA AAAAAAAA AAAAAAAA */
++DEF_IE(100_IE_UNKNOWN_19, 0x0019, 256); /* huge: 1900FC00 9C1F00EA FEFFFFEA FEFFFFEA... */
++DEF_IE(100_IE_INVAL_1A, 0x001A, -1);
++
++DEF_IE(100_IE_DOT11_INVAL_1000, 0x1000, -1);
++DEF_IE(100_IE_DOT11_STATION_ID, 0x1001, 6); /* huge: 0110FC00 58B10E2F 03000000 00000000... */
++DEF_IE(100_IE_DOT11_INVAL_1002, 0x1002, -1);
++DEF_IE(100_IE_DOT11_INVAL_1003, 0x1003, -1);
++DEF_IE(100_IE_DOT11_INVAL_1004, 0x1004, -1);
++DEF_IE(100_IE_DOT11_SHORT_RETRY_LIMIT, 0x1005, 1);
++DEF_IE(100_IE_DOT11_LONG_RETRY_LIMIT, 0x1006, 1);
++/* write only: */
++DEF_IE(100_IE_DOT11_WEP_DEFAULT_KEY_WRITE, 0x1007, 32);
++DEF_IE(100_IE_DOT11_MAX_XMIT_MSDU_LIFETIME, 0x1008, 4); /* huge: 0810FC00 00020000 F4010000 00000000... */
++/* undoc but returns something */
++DEF_IE(100_IE_DOT11_GROUP_ADDR, 0x1009, 12); /* huge: 0910FC00 00000000 00000000 00000000... */
++DEF_IE(100_IE_DOT11_CURRENT_REG_DOMAIN, 0x100a, 1); /* 0A10FC00 30AAAAAA AAAAAAAA AAAAAAAA */
++DEF_IE(100_IE_DOT11_CURRENT_ANTENNA, 0x100b, 1); /* 0B10FC00 8FAAAAAA AAAAAAAA AAAAAAAA */
++DEF_IE(100_IE_DOT11_INVAL_100C, 0x100c, -1);
++DEF_IE(100_IE_DOT11_TX_POWER_LEVEL, 0x100d, 2); /* 00000000 0100AAAA AAAAAAAA AAAAAAAA */
++DEF_IE(100_IE_DOT11_CURRENT_CCA_MODE, 0x100e, 1); /* 0E10FC00 0DAAAAAA AAAAAAAA AAAAAAAA */
++DEF_IE(100_IE_DOT11_ED_THRESHOLD, 0x100f, 4); /* 0F10FC00 70000000 AAAAAAAA AAAAAAAA */
++/* set default key ID */
++DEF_IE(100_IE_DOT11_WEP_DEFAULT_KEY_SET, 0x1010, 1); /* 1010FC00 00AAAAAA AAAAAAAA AAAAAAAA */
++DEF_IE(100_IE_DOT11_INVAL_1011, 0x1011, -1);
++DEF_IE(100_IE_DOT11_INVAL_1012, 0x1012, -1);
++DEF_IE(100_IE_DOT11_INVAL_1013, 0x1013, -1);
++DEF_IE(100_IE_DOT11_UNKNOWN_1014, 0x1014, 256); /* huge */
++DEF_IE(100_IE_DOT11_UNKNOWN_1015, 0x1015, 256); /* huge */
++DEF_IE(100_IE_DOT11_UNKNOWN_1016, 0x1016, 256); /* huge */
++DEF_IE(100_IE_DOT11_UNKNOWN_1017, 0x1017, 256); /* huge */
++DEF_IE(100_IE_DOT11_UNKNOWN_1018, 0x1018, 256); /* huge */
++DEF_IE(100_IE_DOT11_UNKNOWN_1019, 0x1019, 256); /* huge */
++#endif
++
++#if 0
++/* Experimentally obtained on PCI acx111 Xterasys XN-2522g, fw 1.2.1.34
++** -1 means that fw returned 'invalid IE'
++** 0400 0800 nnnn... are test read contents: u16 type, u16 len, data
++** (AA are poison bytes marking bytes not written by fw)
++**
++** Looks like acx111 fw reports real len!
++*/
++DEF_IE(111_IE_INVAL_00, 0x0000, -1);
++DEF_IE(111_IE_INVAL_01, 0x0001, -1);
++DEF_IE(111_IE_POWER_MGMT, 0x0002, 12);
++/* write only, variable len: 12 + rxqueue_cnt*8 + txqueue_cnt*4: */
++DEF_IE(111_IE_MEMORY_CONFIG, 0x0003, 24);
++DEF_IE(111_IE_BLOCK_SIZE, 0x0004, 8); /* 04000800 AA00AAAA AAAAAAAA */
++/* variable len: 8 + rxqueue_cnt*8 + txqueue_cnt*8: */
++DEF_IE(111_IE_QUEUE_HEAD, 0x0005, 24);
++DEF_IE(111_IE_RATE_FALLBACK, 0x0006, 1);
++/* acx100 name:WEP_OPTIONS */
++/* said to have len:1 (not true, actually returns 12 bytes): */
++DEF_IE(111_IE_RADIO_BAND, 0x0007, 12); /* 07000C00 AAAA1F00 FF03AAAA AAAAAAAA */
++DEF_IE(111_IE_MEMORY_MAP, 0x0008, 48);
++/* said to have len:4, but gives INVAL on read: */
++DEF_IE(111_IE_SCAN_STATUS, 0x0009, -1);
++DEF_IE(111_IE_ASSOC_ID, 0x000a, 2);
++/* write only, len is not known: */
++DEF_IE(111_IE_UNKNOWN_0B, 0x000b, 0);
++/* read only, variable len. I see 67 byte reads: */
++DEF_IE(111_IE_CONFIG_OPTIONS, 0x000c, 67); /* 0C004300 01160500 ... */
++DEF_IE(111_IE_FWREV, 0x000d, 24);
++DEF_IE(111_IE_FCS_ERROR_COUNT, 0x000e, 4);
++DEF_IE(111_IE_MEDIUM_USAGE, 0x000f, 8);
++DEF_IE(111_IE_RXCONFIG, 0x0010, 4);
++DEF_IE(111_IE_QUEUE_THRESH, 0x0011, 12);
++DEF_IE(111_IE_BSS_POWER_SAVE, 0x0012, 1);
++/* read only, variable len. I see 240 byte reads: */
++DEF_IE(111_IE_FIRMWARE_STATISTICS, 0x0013, 240); /* 1300F000 00000000 ... */
++/* said to have len=17. looks like fw pads it to 20: */
++DEF_IE(111_IE_INT_CONFIG, 0x0014, 20); /* 14001400 00000000 00000000 00000000 00000000 00000000 */
++DEF_IE(111_IE_FEATURE_CONFIG, 0x0015, 8);
++/* said to be name:KEY_INDICATOR, len:4, but gives INVAL on read: */
++DEF_IE(111_IE_KEY_CHOOSE, 0x0016, -1);
++/* said to have len:4, but in fact returns 8: */
++DEF_IE(111_IE_MAX_USB_XFR, 0x0017, 8); /* 17000800 00014000 00000000 */
++DEF_IE(111_IE_INVAL_18, 0x0018, -1);
++DEF_IE(111_IE_INVAL_19, 0x0019, -1);
++/* undoc but returns something: */
++/* huh, fw indicates len=20 but uses 4 more bytes in buffer??? */
++DEF_IE(111_IE_UNKNOWN_1A, 0x001A, 20); /* 1A001400 AA00AAAA 0000020F FF030000 00020000 00000007 04000000 */
++
++DEF_IE(111_IE_DOT11_INVAL_1000, 0x1000, -1);
++DEF_IE(111_IE_DOT11_STATION_ID, 0x1001, 6);
++DEF_IE(111_IE_DOT11_FRAG_THRESH, 0x1002, 2);
++/* acx100 only? gives INVAL on read: */
++DEF_IE(111_IE_DOT11_BEACON_PERIOD, 0x1003, -1);
++/* said to be MAX_RECV_MSDU_LIFETIME: */
++DEF_IE(111_IE_DOT11_DTIM_PERIOD, 0x1004, 4);
++DEF_IE(111_IE_DOT11_SHORT_RETRY_LIMIT, 0x1005, 1);
++DEF_IE(111_IE_DOT11_LONG_RETRY_LIMIT, 0x1006, 1);
++/* acx100 only? gives INVAL on read: */
++DEF_IE(111_IE_DOT11_WEP_DEFAULT_KEY_WRITE, 0x1007, -1);
++DEF_IE(111_IE_DOT11_MAX_XMIT_MSDU_LIFETIME, 0x1008, 4);
++/* undoc but returns something. maybe it's 2 multicast MACs to listen to? */
++DEF_IE(111_IE_DOT11_GROUP_ADDR, 0x1009, 12); /* 09100C00 00000000 00000000 00000000 */
++DEF_IE(111_IE_DOT11_CURRENT_REG_DOMAIN, 0x100a, 1);
++DEF_IE(111_IE_DOT11_CURRENT_ANTENNA, 0x100b, 2);
++DEF_IE(111_IE_DOT11_INVAL_100C, 0x100c, -1);
++DEF_IE(111_IE_DOT11_TX_POWER_LEVEL, 0x100d, 1);
++/* said to have len=1 but gives INVAL on read: */
++DEF_IE(111_IE_DOT11_CURRENT_CCA_MODE, 0x100e, -1);
++/* said to have len=4 but gives INVAL on read: */
++DEF_IE(111_IE_DOT11_ED_THRESHOLD, 0x100f, -1);
++/* set default key ID. write only: */
++DEF_IE(111_IE_DOT11_WEP_DEFAULT_KEY_SET, 0x1010, 1);
++/* undoc but returns something: */
++DEF_IE(111_IE_DOT11_UNKNOWN_1011, 0x1011, 1); /* 11100100 20 */
++DEF_IE(111_IE_DOT11_INVAL_1012, 0x1012, -1);
++DEF_IE(111_IE_DOT11_INVAL_1013, 0x1013, -1);
++#endif
++
++
++/***********************************************************************
++**Information Frames Structures
++*/
++
++/* Used in beacon frames and the like */
++#define DOT11RATEBYTE_1 (1*2)
++#define DOT11RATEBYTE_2 (2*2)
++#define DOT11RATEBYTE_5_5 (5*2+1)
++#define DOT11RATEBYTE_11 (11*2)
++#define DOT11RATEBYTE_22 (22*2)
++#define DOT11RATEBYTE_6_G (6*2)
++#define DOT11RATEBYTE_9_G (9*2)
++#define DOT11RATEBYTE_12_G (12*2)
++#define DOT11RATEBYTE_18_G (18*2)
++#define DOT11RATEBYTE_24_G (24*2)
++#define DOT11RATEBYTE_36_G (36*2)
++#define DOT11RATEBYTE_48_G (48*2)
++#define DOT11RATEBYTE_54_G (54*2)
++#define DOT11RATEBYTE_BASIC 0x80 /* flags rates included in basic rate set */
++
++
++/***********************************************************************
++** rxbuffer_t
++**
++** This is the format of rx data returned by acx
++*/
++
++/* I've hoped it's a 802.11 PHY header, but no...
++ * so far, I've seen on acx111:
++ * 0000 3a00 0000 0000 IBSS Beacons
++ * 0000 3c00 0000 0000 ESS Beacons
++ * 0000 2700 0000 0000 Probe requests
++ * --vda
++ */
++typedef struct phy_hdr {
++ u8 unknown[4];
++ u8 acx111_unknown[4];
++} ACX_PACKED phy_hdr_t;
++
++/* seems to be a bit similar to hfa384x_rx_frame.
++ * These fields are still not quite obvious, though.
++ * Some seem to have different meanings... */
++
++#define RXBUF_HDRSIZE 12
++#define RXBUF_BYTES_RCVD(adev, rxbuf) \
++ ((le16_to_cpu((rxbuf)->mac_cnt_rcvd) & 0xfff) - (adev)->phy_header_len)
++#define RXBUF_BYTES_USED(rxbuf) \
++ ((le16_to_cpu((rxbuf)->mac_cnt_rcvd) & 0xfff) + RXBUF_HDRSIZE)
++/* USBism */
++#define RXBUF_IS_TXSTAT(rxbuf) (le16_to_cpu((rxbuf)->mac_cnt_rcvd) & 0x8000)
++/*
++mac_cnt_rcvd:
++ 12 bits: length of frame from control field to first byte of FCS
++ 3 bits: reserved
++ 1 bit: 1 = it's a tx status info, not a rx packet (USB only)
++
++mac_cnt_mblks:
++ 6 bits: number of memory block used to store frame in adapter memory
++ 1 bit: Traffic Indicator bit in TIM of received Beacon was set
++
++mac_status: 1 byte (bitmap):
++ 7 Matching BSSID
++ 6 Matching SSID
++ 5 BDCST Address 1 field is a broadcast
++ 4 VBM received beacon frame has more than one set bit (?!)
++ 3 TIM Set bit representing this station is set in TIM of received beacon
++ 2 GROUP Address 1 is a multicast
++ 1 ADDR1 Address 1 matches our MAC
++ 0 FCSGD FSC is good
++
++phy_stat_baseband: 1 byte (bitmap):
++ 7 Preamble frame had a long preamble
++ 6 PLCP Error CRC16 error in PLCP header
++ 5 Unsup_Mod unsupported modulation
++ 4 Selected Antenna antenna 1 was used to receive this frame
++ 3 PBCC/CCK frame used: 1=PBCC, 0=CCK modulation
++ 2 OFDM frame used OFDM modulation
++ 1 TI Protection protection frame was detected
++ 0 Reserved
++
++phy_plcp_signal: 1 byte:
++ Receive PLCP Signal field from the Baseband Processor
++
++phy_level: 1 byte:
++ receive AGC gain level (can be used to measure receive signal strength)
++
++phy_snr: 1 byte:
++ estimated noise power of equalized receive signal
++ at input of FEC decoder (can be used to measure receive signal quality)
++
++time: 4 bytes:
++ timestamp sampled from either the Access Manager TSF counter
++ or free-running microsecond counter when the MAC receives
++ first byte of PLCP header.
++*/
++
++typedef struct rxbuffer {
++ u16 mac_cnt_rcvd; /* only 12 bits are len! (0xfff) */
++ u8 mac_cnt_mblks;
++ u8 mac_status;
++ u8 phy_stat_baseband; /* bit 0x80: used LNA (Low-Noise Amplifier) */
++ u8 phy_plcp_signal;
++ u8 phy_level; /* PHY stat */
++ u8 phy_snr; /* PHY stat */
++ u32 time; /* timestamp upon MAC rcv first byte */
++/* 4-byte (acx100) or 8-byte (acx111) phy header will be here
++** if RX_CFG1_INCLUDE_PHY_HDR is in effect:
++** phy_hdr_t phy */
++ wlan_hdr_a3_t hdr_a3;
++ /* maximally sized data part of wlan packet */
++ u8 data_a3[WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_HDR_A3_LEN];
++ /* can add hdr/data_a4 if needed */
++} ACX_PACKED rxbuffer_t;
++
++
++/*--- Firmware statistics ----------------------------------------------------*/
++
++/* define a random 100 bytes more to catch firmware versions which
++ * provide a bigger struct */
++#define FW_STATS_FUTURE_EXTENSION 100
++
++typedef struct fw_stats_tx {
++ u32 tx_desc_of;
++} ACX_PACKED fw_stats_tx_t;
++
++typedef struct fw_stats_rx {
++ u32 rx_oom;
++ u32 rx_hdr_of;
++ u32 rx_hw_stuck; /* old: u32 rx_hdr_use_next */
++ u32 rx_dropped_frame;
++ u32 rx_frame_ptr_err;
++ u32 rx_xfr_hint_trig;
++ u32 rx_aci_events; /* later versions only */
++ u32 rx_aci_resets; /* later versions only */
++} ACX_PACKED fw_stats_rx_t;
++
++typedef struct fw_stats_dma {
++ u32 rx_dma_req;
++ u32 rx_dma_err;
++ u32 tx_dma_req;
++ u32 tx_dma_err;
++} ACX_PACKED fw_stats_dma_t;
++
++typedef struct fw_stats_irq {
++ u32 cmd_cplt;
++ u32 fiq;
++ u32 rx_hdrs;
++ u32 rx_cmplt;
++ u32 rx_mem_of;
++ u32 rx_rdys;
++ u32 irqs;
++ u32 tx_procs;
++ u32 decrypt_done;
++ u32 dma_0_done;
++ u32 dma_1_done;
++ u32 tx_exch_complet;
++ u32 commands;
++ u32 rx_procs;
++ u32 hw_pm_mode_changes;
++ u32 host_acks;
++ u32 pci_pm;
++ u32 acm_wakeups;
++} ACX_PACKED fw_stats_irq_t;
++
++typedef struct fw_stats_wep {
++ u32 wep_key_count;
++ u32 wep_default_key_count;
++ u32 dot11_def_key_mib;
++ u32 wep_key_not_found;
++ u32 wep_decrypt_fail;
++ u32 wep_pkt_decrypt;
++ u32 wep_decrypt_irqs;
++} ACX_PACKED fw_stats_wep_t;
++
++typedef struct fw_stats_pwr {
++ u32 tx_start_ctr;
++ u32 no_ps_tx_too_short;
++ u32 rx_start_ctr;
++ u32 no_ps_rx_too_short;
++ u32 lppd_started;
++ u32 no_lppd_too_noisy;
++ u32 no_lppd_too_short;
++ u32 no_lppd_matching_frame;
++} ACX_PACKED fw_stats_pwr_t;
++
++typedef struct fw_stats_mic {
++ u32 mic_rx_pkts;
++ u32 mic_calc_fail;
++} ACX_PACKED fw_stats_mic_t;
++
++typedef struct fw_stats_aes {
++ u32 aes_enc_fail;
++ u32 aes_dec_fail;
++ u32 aes_enc_pkts;
++ u32 aes_dec_pkts;
++ u32 aes_enc_irq;
++ u32 aes_dec_irq;
++} ACX_PACKED fw_stats_aes_t;
++
++typedef struct fw_stats_event {
++ u32 heartbeat;
++ u32 calibration;
++ u32 rx_mismatch;
++ u32 rx_mem_empty;
++ u32 rx_pool;
++ u32 oom_late;
++ u32 phy_tx_err;
++ u32 tx_stuck;
++} ACX_PACKED fw_stats_event_t;
++
++/* mainly for size calculation only */
++typedef struct fw_stats {
++ u16 type;
++ u16 len;
++ fw_stats_tx_t tx;
++ fw_stats_rx_t rx;
++ fw_stats_dma_t dma;
++ fw_stats_irq_t irq;
++ fw_stats_wep_t wep;
++ fw_stats_pwr_t pwr;
++ fw_stats_mic_t mic;
++ fw_stats_aes_t aes;
++ fw_stats_event_t evt;
++ u8 _padding[FW_STATS_FUTURE_EXTENSION];
++} fw_stats_t;
++
++/* Firmware version struct */
++
++typedef struct fw_ver {
++ u16 cmd;
++ u16 size;
++ char fw_id[20];
++ u32 hw_id;
++} ACX_PACKED fw_ver_t;
++
++#define FW_ID_SIZE 20
++
++typedef struct shared_queueindicator {
++ u32 indicator;
++ u16 host_lock;
++ u16 fw_lock;
++} ACX_PACKED queueindicator_t;
++
++/*--- WEP stuff --------------------------------------------------------------*/
++#define DOT11_MAX_DEFAULT_WEP_KEYS 4
++
++/* non-firmware struct, no packing necessary */
++typedef struct wep_key {
++ size_t size; /* most often used member first */
++ u8 index;
++ u8 key[29];
++ u16 strange_filler;
++} wep_key_t; /* size = 264 bytes (33*8) */
++/* FIXME: We don't have size 264! Or is there 2 bytes beyond the key
++ * (strange_filler)? */
++
++/* non-firmware struct, no packing necessary */
++typedef struct key_struct {
++ u8 addr[ETH_ALEN]; /* 0x00 */
++ u16 filler1; /* 0x06 */
++ u32 filler2; /* 0x08 */
++ u32 index; /* 0x0c */
++ u16 len; /* 0x10 */
++ u8 key[29]; /* 0x12; is this long enough??? */
++} key_struct_t; /* size = 276. FIXME: where is the remaining space?? */
++
++
++/*--- Client (peer) info -----------------------------------------------------*/
++/* adev->sta_list[] is used for:
++** accumulating and processing of scan results
++** keeping client info in AP mode
++** keeping AP info in STA mode (AP is the only one 'client')
++** keeping peer info in ad-hoc mode
++** non-firmware struct --> no packing necessary */
++enum {
++ CLIENT_EMPTY_SLOT_0 = 0,
++ CLIENT_EXIST_1 = 1,
++ CLIENT_AUTHENTICATED_2 = 2,
++ CLIENT_ASSOCIATED_3 = 3,
++ CLIENT_JOIN_CANDIDATE = 4
++};
++struct client {
++ /* most frequent access first */
++ u8 used; /* misnamed, more like 'status' */
++ struct client* next;
++ unsigned long mtime; /* last time we heard it, in jiffies */
++ size_t essid_len; /* length of ESSID (without '\0') */
++ u32 sir; /* Standard IR */
++ u32 snr; /* Signal to Noise Ratio */
++ u16 aid; /* association ID */
++ u16 seq; /* from client's auth req */
++ u16 auth_alg; /* from client's auth req */
++ u16 cap_info; /* from client's assoc req */
++ u16 rate_cap; /* what client supports (all rates) */
++ u16 rate_bas; /* what client supports (basic rates) */
++ u16 rate_cfg; /* what is allowed (by iwconfig etc) */
++ u16 rate_cur; /* currently used rate mask */
++ u8 rate_100; /* currently used rate byte (acx100 only) */
++ u8 address[ETH_ALEN];
++ u8 bssid[ETH_ALEN]; /* ad-hoc hosts can have bssid != mac */
++ u8 channel;
++ u8 auth_step;
++ u8 ignore_count;
++ u8 fallback_count;
++ u8 stepup_count;
++ char essid[IW_ESSID_MAX_SIZE + 1]; /* ESSID and trailing '\0' */
++/* FIXME: this one is too damn big */
++ char challenge_text[WLAN_CHALLENGE_LEN];
++};
++
++
++/***********************************************************************
++** Hardware structures
++*/
++
++/* An opaque typesafe helper type
++ *
++ * Some hardware fields are actually pointers,
++ * but they have to remain u32, since using ptr instead
++ * (8 bytes on 64bit systems!) would disrupt the fixed descriptor
++ * format the acx firmware expects in the non-user area.
++ * Since we cannot cram an 8 byte ptr into 4 bytes, we need to
++ * enforce that pointed to data remains in low memory
++ * (address value needs to fit in 4 bytes) on 64bit systems.
++ *
++ * This is easy to get wrong, thus we are using a small struct
++ * and special macros to access it. Macros will check for
++ * attempts to overflow an acx_ptr with value > 0xffffffff.
++ *
++ * Attempts to use acx_ptr without macros result in compile-time errors */
++
++typedef struct {
++ u32 v;
++} ACX_PACKED acx_ptr;
++
++#if ACX_DEBUG
++#define CHECK32(n) BUG_ON(sizeof(n)>4 && (long)(n)>0xffffff00)
++#else
++#define CHECK32(n) ((void)0)
++#endif
++
++/* acx_ptr <-> integer conversion */
++#define cpu2acx(n) ({ CHECK32(n); ((acx_ptr){ .v = cpu_to_le32(n) }); })
++#define acx2cpu(a) (le32_to_cpu(a.v))
++
++/* acx_ptr <-> pointer conversion */
++#define ptr2acx(p) ({ CHECK32(p); ((acx_ptr){ .v = cpu_to_le32((u32)(long)(p)) }); })
++#define acx2ptr(a) ((void*)le32_to_cpu(a.v))
++
++/* Values for rate field (acx100 only) */
++#define RATE100_1 10
++#define RATE100_2 20
++#define RATE100_5 55
++#define RATE100_11 110
++#define RATE100_22 220
++/* This bit denotes use of PBCC:
++** (PBCC encoding is usable with 11 and 22 Mbps speeds only) */
++#define RATE100_PBCC511 0x80
++
++/* Bit values for rate111 field */
++#define RATE111_1 0x0001 /* DBPSK */
++#define RATE111_2 0x0002 /* DQPSK */
++#define RATE111_5 0x0004 /* CCK or PBCC */
++#define RATE111_6 0x0008 /* CCK-OFDM or OFDM */
++#define RATE111_9 0x0010 /* CCK-OFDM or OFDM */
++#define RATE111_11 0x0020 /* CCK or PBCC */
++#define RATE111_12 0x0040 /* CCK-OFDM or OFDM */
++#define RATE111_18 0x0080 /* CCK-OFDM or OFDM */
++#define RATE111_22 0x0100 /* PBCC */
++#define RATE111_24 0x0200 /* CCK-OFDM or OFDM */
++#define RATE111_36 0x0400 /* CCK-OFDM or OFDM */
++#define RATE111_48 0x0800 /* CCK-OFDM or OFDM */
++#define RATE111_54 0x1000 /* CCK-OFDM or OFDM */
++#define RATE111_RESERVED 0x2000
++#define RATE111_PBCC511 0x4000 /* PBCC mod at 5.5 or 11Mbit (else CCK) */
++#define RATE111_SHORTPRE 0x8000 /* short preamble */
++/* Special 'try everything' value */
++#define RATE111_ALL 0x1fff
++/* These bits denote acx100 compatible settings */
++#define RATE111_ACX100_COMPAT 0x0127
++/* These bits denote 802.11b compatible settings */
++#define RATE111_80211B_COMPAT 0x0027
++
++/* Descriptor Ctl field bits
++ * init value is 0x8e, "idle" value is 0x82 (in idle tx descs)
++ */
++#define DESC_CTL_SHORT_PREAMBLE 0x01 /* preamble type: 0 = long; 1 = short */
++#define DESC_CTL_FIRSTFRAG 0x02 /* this is the 1st frag of the frame */
++#define DESC_CTL_AUTODMA 0x04
++#define DESC_CTL_RECLAIM 0x08 /* ready to reuse */
++#define DESC_CTL_HOSTDONE 0x20 /* host has finished processing */
++#define DESC_CTL_ACXDONE 0x40 /* acx has finished processing */
++/* host owns the desc [has to be released last, AFTER modifying all other desc fields!] */
++#define DESC_CTL_HOSTOWN 0x80
++#define DESC_CTL_ACXDONE_HOSTOWN (DESC_CTL_ACXDONE | DESC_CTL_HOSTOWN)
++
++/* Descriptor Status field
++ */
++#define DESC_STATUS_FULL (1 << 31)
++
++/* NB: some bits may be interesting for Monitor mode tx (aka Raw tx): */
++#define DESC_CTL2_SEQ 0x01 /* don't increase sequence field */
++#define DESC_CTL2_FCS 0x02 /* don't add the FCS */
++#define DESC_CTL2_MORE_FRAG 0x04
++#define DESC_CTL2_RETRY 0x08 /* don't increase retry field */
++#define DESC_CTL2_POWER 0x10 /* don't increase power mgmt. field */
++#define DESC_CTL2_RTS 0x20 /* do RTS/CTS magic before sending */
++#define DESC_CTL2_WEP 0x40 /* encrypt this frame */
++#define DESC_CTL2_DUR 0x80 /* don't increase duration field */
++
++/***********************************************************************
++** PCI structures
++*/
++/* IRQ Constants
++** (outside of "#ifdef PCI" because USB (mis)uses HOST_INT_SCAN_COMPLETE) */
++#define HOST_INT_RX_DATA 0x0001
++#define HOST_INT_TX_COMPLETE 0x0002
++#define HOST_INT_TX_XFER 0x0004
++#define HOST_INT_RX_COMPLETE 0x0008
++#define HOST_INT_DTIM 0x0010
++#define HOST_INT_BEACON 0x0020
++#define HOST_INT_TIMER 0x0040
++#define HOST_INT_KEY_NOT_FOUND 0x0080
++#define HOST_INT_IV_ICV_FAILURE 0x0100
++#define HOST_INT_CMD_COMPLETE 0x0200
++#define HOST_INT_INFO 0x0400
++#define HOST_INT_OVERFLOW 0x0800
++#define HOST_INT_PROCESS_ERROR 0x1000
++#define HOST_INT_SCAN_COMPLETE 0x2000
++#define HOST_INT_FCS_THRESHOLD 0x4000
++#define HOST_INT_UNKNOWN 0x8000
++
++/* Outside of "#ifdef PCI" because USB needs to know sizeof()
++** of txdesc and rxdesc: */
++struct txdesc {
++ acx_ptr pNextDesc; /* pointer to next txdesc */
++ acx_ptr HostMemPtr; /* 0x04 */
++ acx_ptr AcxMemPtr; /* 0x08 */
++ u32 tx_time; /* 0x0c */
++ u16 total_length; /* 0x10 */
++ u16 Reserved; /* 0x12 */
++
++/* The following 16 bytes do not change when acx100 owns the descriptor */
++/* BUG: fw clears last byte of this area which is supposedly reserved
++** for driver use. amd64 blew up. We dare not use it now */
++ u32 dummy[4];
++
++ u8 Ctl_8; /* 0x24, 8bit value */
++ u8 Ctl2_8; /* 0x25, 8bit value */
++ u8 error; /* 0x26 */
++ u8 ack_failures; /* 0x27 */
++
++ union {
++ /*
++ * Packing doesn't work correctly on ARM unless unions are on
++ * 4 byte boundaries.
++ */
++ struct {
++ u8 rts_failures; /* 0x28 */
++ u8 rts_ok; /* 0x29 */
++ u16 d1;
++ } ACX_PACKED rts;
++ struct {
++ u16 d1;
++ u8 rate; /* 0x2a */
++ u8 queue_ctrl; /* 0x2b */
++ } ACX_PACKED r1;
++ struct {
++ u16 d1;
++ u16 rate111; /* 0x2a */
++ } ACX_PACKED r2;
++ } ACX_PACKED u;
++ u32 queue_info; /* 0x2c (acx100, reserved on acx111) */
++} ACX_PACKED; /* size : 48 = 0x30 */
++/* NB: acx111 txdesc structure is 4 byte larger */
++/* All these 4 extra bytes are reserved. tx alloc code takes them into account */
++
++struct rxdesc {
++ acx_ptr pNextDesc; /* 0x00 */
++ acx_ptr HostMemPtr; /* 0x04 */
++ acx_ptr ACXMemPtr; /* 0x08 */
++ u32 rx_time; /* 0x0c */
++ u16 total_length; /* 0x10 */
++ u16 WEP_length; /* 0x12 */
++ u32 WEP_ofs; /* 0x14 */
++
++/* the following 16 bytes do not change when acx100 owns the descriptor */
++ u8 driverWorkspace[16]; /* 0x18 */
++
++ u8 Ctl_8;
++ u8 rate;
++ u8 error;
++ u8 SNR; /* Signal-to-Noise Ratio */
++ u8 RxLevel;
++ u8 queue_ctrl;
++ u16 unknown;
++ u32 unknown2;
++} ACX_PACKED; /* size 52 = 0x34 */
++
++#if defined(ACX_PCI) || defined(ACX_MEM)
++
++/* Register I/O offsets */
++#define ACX100_EEPROM_ID_OFFSET 0x380
++
++/* please add further ACX hardware register definitions only when
++ it turns out you need them in the driver, and please try to use
++ firmware functionality instead, since using direct I/O access instead
++ of letting the firmware do it might confuse the firmware's state
++ machine */
++
++/* ***** ABSOLUTELY ALWAYS KEEP OFFSETS IN SYNC WITH THE INITIALIZATION
++** OF THE I/O ARRAYS!!!! (grep for '^IO_ACX') ***** */
++enum {
++ IO_ACX_SOFT_RESET = 0,
++
++ IO_ACX_SLV_MEM_ADDR,
++ IO_ACX_SLV_MEM_DATA,
++ IO_ACX_SLV_MEM_CTL,
++ IO_ACX_SLV_END_CTL,
++
++ IO_ACX_FEMR, /* Function Event Mask */
++
++ IO_ACX_INT_TRIG,
++ IO_ACX_IRQ_MASK,
++ IO_ACX_IRQ_STATUS_NON_DES,
++ IO_ACX_IRQ_STATUS_CLEAR, /* CLEAR = clear on read */
++ IO_ACX_IRQ_ACK,
++ IO_ACX_HINT_TRIG,
++
++ IO_ACX_ENABLE,
++
++ IO_ACX_EEPROM_CTL,
++ IO_ACX_EEPROM_ADDR,
++ IO_ACX_EEPROM_DATA,
++ IO_ACX_EEPROM_CFG,
++
++ IO_ACX_PHY_ADDR,
++ IO_ACX_PHY_DATA,
++ IO_ACX_PHY_CTL,
++
++ IO_ACX_GPIO_OE,
++
++ IO_ACX_GPIO_OUT,
++
++ IO_ACX_CMD_MAILBOX_OFFS,
++ IO_ACX_INFO_MAILBOX_OFFS,
++ IO_ACX_EEPROM_INFORMATION,
++
++ IO_ACX_EE_START,
++ IO_ACX_SOR_CFG,
++ IO_ACX_ECPU_CTRL
++};
++/* ***** ABSOLUTELY ALWAYS KEEP OFFSETS IN SYNC WITH THE INITIALIZATION
++** OF THE I/O ARRAYS!!!! (grep for '^IO_ACX') ***** */
++
++/* Values for IO_ACX_INT_TRIG register: */
++/* inform hw that rxdesc in queue needs processing */
++#define INT_TRIG_RXPRC 0x08
++/* inform hw that txdesc in queue needs processing */
++#define INT_TRIG_TXPRC 0x04
++/* ack that we received info from info mailbox */
++#define INT_TRIG_INFOACK 0x02
++/* inform hw that we have filled command mailbox */
++#define INT_TRIG_CMD 0x01
++
++struct txhostdesc {
++ acx_ptr data_phy; /* 0x00 [u8 *] */
++ u16 data_offset; /* 0x04 */
++ u16 reserved; /* 0x06 */
++ u16 Ctl_16; /* 16bit value, endianness!! */
++ u16 length; /* 0x0a */
++ acx_ptr desc_phy_next; /* 0x0c [txhostdesc *] */
++ acx_ptr pNext; /* 0x10 [txhostdesc *] */
++ u32 Status; /* 0x14, unused on Tx */
++/* From here on you can use this area as you want (variable length, too!) */
++ u8 *data;
++} ACX_PACKED;
++
++struct rxhostdesc {
++ acx_ptr data_phy; /* 0x00 [rxbuffer_t *] */
++ u16 data_offset; /* 0x04 */
++ u16 reserved; /* 0x06 */
++ u16 Ctl_16; /* 0x08; 16bit value, endianness!! */
++ u16 length; /* 0x0a */
++ acx_ptr desc_phy_next; /* 0x0c [rxhostdesc_t *] */
++ acx_ptr pNext; /* 0x10 [rxhostdesc_t *] */
++ u32 Status; /* 0x14 */
++/* From here on you can use this area as you want (variable length, too!) */
++ rxbuffer_t *data;
++} ACX_PACKED;
++
++#endif /* ACX_PCI */
++
++/***********************************************************************
++** USB structures and constants
++*/
++#ifdef ACX_USB
++
++/* Used for usb_txbuffer.desc field */
++#define USB_TXBUF_TXDESC 0xA
++/* Size of header (everything up to data[]) */
++#define USB_TXBUF_HDRSIZE 14
++typedef struct usb_txbuffer {
++ u16 desc;
++ u16 mpdu_len;
++ u8 queue_index;
++ u8 rate;
++ u32 hostdata;
++ u8 ctrl1;
++ u8 ctrl2;
++ u16 data_len;
++ /* wlan packet content is placed here: */
++ u8 data[WLAN_A4FR_MAXLEN_WEP_FCS];
++} ACX_PACKED usb_txbuffer_t;
++
++/* USB returns either rx packets (see rxbuffer) or
++** these "tx status" structs: */
++typedef struct usb_txstatus {
++ u16 mac_cnt_rcvd; /* only 12 bits are len! (0xfff) */
++ u8 queue_index;
++ u8 mac_status; /* seen 0x20 on tx failure */
++ u32 hostdata;
++ u8 rate;
++ u8 ack_failures;
++ u8 rts_failures;
++ u8 rts_ok;
++} ACX_PACKED usb_txstatus_t;
++
++typedef struct usb_tx {
++ unsigned busy:1;
++ struct urb *urb;
++ acx_device_t *adev;
++ /* actual USB bulk output data block is here: */
++ usb_txbuffer_t bulkout;
++} usb_tx_t;
++
++struct usb_rx_plain {
++ unsigned busy:1;
++ struct urb *urb;
++ acx_device_t *adev;
++ rxbuffer_t bulkin;
++};
++
++typedef struct usb_rx {
++ unsigned busy:1;
++ struct urb *urb;
++ acx_device_t *adev;
++ rxbuffer_t bulkin;
++ /* Make entire structure 4k. Report if it breaks something. */
++ u8 padding[4*1024 - sizeof(struct usb_rx_plain)];
++} usb_rx_t;
++#endif /* ACX_USB */
++
++
++/* Config Option structs */
++
++typedef struct co_antennas {
++ u8 type;
++ u8 len;
++ u8 list[2];
++} ACX_PACKED co_antennas_t;
++
++typedef struct co_powerlevels {
++ u8 type;
++ u8 len;
++ u16 list[8];
++} ACX_PACKED co_powerlevels_t;
++
++typedef struct co_datarates {
++ u8 type;
++ u8 len;
++ u8 list[8];
++} ACX_PACKED co_datarates_t;
++
++typedef struct co_domains {
++ u8 type;
++ u8 len;
++ u8 list[6];
++} ACX_PACKED co_domains_t;
++
++typedef struct co_product_id {
++ u8 type;
++ u8 len;
++ u8 list[128];
++} ACX_PACKED co_product_id_t;
++
++typedef struct co_manuf_id {
++ u8 type;
++ u8 len;
++ u8 list[128];
++} ACX_PACKED co_manuf_t;
++
++typedef struct co_fixed {
++ char NVSv[8];
++/* u16 NVS_vendor_offs; ACX111-only */
++/* u16 unknown; ACX111-only */
++ u8 MAC[6]; /* ACX100-only */
++ u16 probe_delay; /* ACX100-only */
++ u32 eof_memory;
++ u8 dot11CCAModes;
++ u8 dot11Diversity;
++ u8 dot11ShortPreambleOption;
++ u8 dot11PBCCOption;
++ u8 dot11ChannelAgility;
++ u8 dot11PhyType; /* FIXME: does 802.11 call it "dot11PHYType"? */
++ u8 dot11TempType;
++ u8 table_count;
++} ACX_PACKED co_fixed_t;
++
++typedef struct acx111_ie_configoption {
++ u16 type;
++ u16 len;
++/* Do not access below members directly, they are in fact variable length */
++ co_fixed_t fixed;
++ co_antennas_t antennas;
++ co_powerlevels_t power_levels;
++ co_datarates_t data_rates;
++ co_domains_t domains;
++ co_product_id_t product_id;
++ co_manuf_t manufacturer;
++ u8 _padding[4];
++} ACX_PACKED acx111_ie_configoption_t;
++
++
++/***********************************************************************
++** Main acx per-device data structure
++*/
++#define ACX_STATE_FW_LOADED 0x01
++#define ACX_STATE_IFACE_UP 0x02
++
++/* MAC mode (BSS type) defines
++ * Note that they shouldn't be redefined, since they are also used
++ * during communication with firmware */
++#define ACX_MODE_0_ADHOC 0
++#define ACX_MODE_1_UNUSED 1
++#define ACX_MODE_2_STA 2
++#define ACX_MODE_3_AP 3
++/* These are our own inventions. Sending these to firmware
++** makes it stop emitting beacons, which is exactly what we want
++** for these modes */
++#define ACX_MODE_MONITOR 0xfe
++#define ACX_MODE_OFF 0xff
++/* 'Submode': identifies exact status of ADHOC/STA host */
++#define ACX_STATUS_0_STOPPED 0
++#define ACX_STATUS_1_SCANNING 1
++#define ACX_STATUS_2_WAIT_AUTH 2
++#define ACX_STATUS_3_AUTHENTICATED 3
++#define ACX_STATUS_4_ASSOCIATED 4
++
++/* FIXME: this should be named something like struct acx_priv (typedef'd to
++ * acx_priv_t) */
++
++/* non-firmware struct, no packing necessary */
++struct acx_device {
++ /* most frequent accesses first (dereferencing and cache line!) */
++
++ /*** Locking ***/
++ /* FIXME: try to convert semaphore to more efficient mutex according
++ to Ingo Molnar's docs (but not before driver is in mainline or
++ pre-mutex Linux 2.6.10 is very outdated). */
++ struct semaphore sem;
++ spinlock_t lock;
++#if defined(PARANOID_LOCKING) /* Lock debugging */
++ const char *last_sem;
++ const char *last_lock;
++ unsigned long sem_time;
++ unsigned long lock_time;
++#endif
++#ifdef ACX_MEM
++ spinlock_t txbuf_lock;
++#endif
++
++ /*** Linux network device ***/
++ struct net_device *ndev; /* pointer to linux netdevice */
++
++ /*** Device statistics ***/
++ struct net_device_stats stats; /* net device statistics */
++#ifdef WIRELESS_EXT
++ struct iw_statistics wstats; /* wireless statistics */
++#endif
++ /*** Power managment ***/
++ struct pm_dev *pm; /* PM crap */
++
++ /*** Management timer ***/
++ struct timer_list mgmt_timer;
++
++ /*** Hardware identification ***/
++ const char *chip_name;
++ u8 dev_type;
++ u8 chip_type;
++ u8 form_factor;
++ u8 radio_type;
++ u8 eeprom_version;
++
++ /*** Config retrieved from EEPROM ***/
++ char cfgopt_NVSv[8];
++ u16 cfgopt_NVS_vendor_offs;
++ u8 cfgopt_MAC[6];
++ u16 cfgopt_probe_delay;
++ u32 cfgopt_eof_memory;
++ u8 cfgopt_dot11CCAModes;
++ u8 cfgopt_dot11Diversity;
++ u8 cfgopt_dot11ShortPreambleOption;
++ u8 cfgopt_dot11PBCCOption;
++ u8 cfgopt_dot11ChannelAgility;
++ u8 cfgopt_dot11PhyType;
++ u8 cfgopt_dot11TempType;
++ co_antennas_t cfgopt_antennas;
++ co_powerlevels_t cfgopt_power_levels;
++ co_datarates_t cfgopt_data_rates;
++ co_domains_t cfgopt_domains;
++ co_product_id_t cfgopt_product_id;
++ co_manuf_t cfgopt_manufacturer;
++
++ /*** Firmware identification ***/
++ char firmware_version[FW_ID_SIZE+1];
++ u32 firmware_numver;
++ u32 firmware_id;
++ const u16 *ie_len;
++ const u16 *ie_len_dot11;
++
++ /*** Device state ***/
++ u16 dev_state_mask;
++ u8 led_power; /* power LED status */
++ u32 get_mask; /* mask of settings to fetch from the card */
++ u32 set_mask; /* mask of settings to write to the card */
++
++ /* Barely used in USB case */
++ u16 irq_status;
++
++ u8 after_interrupt_jobs; /* mini job list for doing actions after an interrupt occurred */
++ WORK_STRUCT after_interrupt_task; /* our task for after interrupt actions */
++
++ /*** scanning ***/
++ u16 scan_count; /* number of times to do channel scan */
++ u8 scan_mode; /* 0 == active, 1 == passive, 2 == background */
++ u8 scan_rate;
++ u16 scan_duration;
++ u16 scan_probe_delay;
++#if WIRELESS_EXT > 15
++ struct iw_spy_data spy_data; /* FIXME: needs to be implemented! */
++#endif
++
++ /*** Wireless network settings ***/
++ /* copy of the device address (ifconfig hw ether) that we actually use
++ ** for 802.11; copied over from the network device's MAC address
++ ** (ifconfig) when it makes sense only */
++ u8 dev_addr[MAX_ADDR_LEN];
++ u8 bssid[ETH_ALEN]; /* the BSSID after having joined */
++ u8 ap[ETH_ALEN]; /* The AP we want, FF:FF:FF:FF:FF:FF is any */
++ u16 aid; /* The Association ID sent from the AP / last used AID if we're an AP */
++ u16 mode; /* mode from iwconfig */
++ int monitor_type; /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_PRISM */
++ u16 status; /* 802.11 association status */
++ u8 essid_active; /* specific ESSID active, or select any? */
++ u8 essid_len; /* to avoid dozens of strlen() */
++ /* INCLUDES \0 termination for easy printf - but many places
++ ** simply want the string data memcpy'd plus a length indicator!
++ ** Keep that in mind... */
++ char essid[IW_ESSID_MAX_SIZE+1];
++ /* essid we are going to use for association, in case of "essid 'any'"
++ ** and in case of hidden ESSID (use configured ESSID then) */
++ char essid_for_assoc[IW_ESSID_MAX_SIZE+1];
++ char nick[IW_ESSID_MAX_SIZE+1]; /* see essid! */
++ u8 channel;
++ u8 reg_dom_id; /* reg domain setting */
++ u16 reg_dom_chanmask;
++ u16 auth_or_assoc_retries;
++ u16 scan_retries;
++ unsigned long scan_start; /* YES, jiffies is defined as "unsigned long" */
++
++ /* stations known to us (if we're an ap) */
++ client_t sta_list[32]; /* tab is larger than list, so that */
++ client_t *sta_hash_tab[64]; /* hash collisions are not likely */
++ client_t *ap_client; /* this one is our AP (STA mode only) */
++
++ int dup_count;
++ int nondup_count;
++ unsigned long dup_msg_expiry;
++ u16 last_seq_ctrl; /* duplicate packet detection */
++
++ /* 802.11 power save mode */
++ u8 ps_wakeup_cfg;
++ u8 ps_listen_interval;
++ u8 ps_options;
++ u8 ps_hangover_period;
++ u32 ps_enhanced_transition_time;
++ u32 ps_beacon_rx_time;
++
++ /*** PHY settings ***/
++ u8 fallback_threshold;
++ u8 stepup_threshold;
++ u16 rate_basic;
++ u16 rate_oper;
++ u16 rate_bcast;
++ u16 rate_bcast100;
++ u8 rate_auto; /* false if "iwconfig rate N" (WITHOUT 'auto'!) */
++ u8 preamble_mode; /* 0 == Long Preamble, 1 == Short, 2 == Auto */
++ u8 preamble_cur;
++
++ u8 tx_disabled;
++ u8 tx_level_dbm;
++ /* u8 tx_level_val; */
++ /* u8 tx_level_auto; whether to do automatic power adjustment */
++
++ unsigned long recalib_time_last_success;
++ unsigned long recalib_time_last_attempt;
++ int recalib_failure_count;
++ int recalib_msg_ratelimit;
++ int retry_errors_msg_ratelimit;
++
++ unsigned long brange_time_last_state_change; /* time the power LED was last changed */
++ u8 brange_last_state; /* last state of the LED */
++ u8 brange_max_quality; /* maximum quality that equates to full speed */
++
++ u8 sensitivity;
++ u8 antenna; /* antenna settings */
++ u8 ed_threshold; /* energy detect threshold */
++ u8 cca; /* clear channel assessment */
++
++ u16 rts_threshold;
++ u16 frag_threshold;
++ u32 short_retry;
++ u32 long_retry;
++ u16 msdu_lifetime;
++ u16 listen_interval; /* given in units of beacon interval */
++ u32 beacon_interval;
++
++ u16 capabilities;
++ u8 rate_supported_len;
++ u8 rate_supported[13];
++
++ /*** Encryption settings (WEP) ***/
++ u32 auth_alg; /* used in transmit_authen1 */
++ u8 wep_enabled;
++ u8 wep_restricted;
++ u8 wep_current_index;
++ wep_key_t wep_keys[DOT11_MAX_DEFAULT_WEP_KEYS]; /* the default WEP keys */
++ key_struct_t wep_key_struct[10];
++
++ /*** Unknown ***/
++ u8 dtim_interval;
++
++#ifdef ACX_MEM
++ u32 acx_txbuf_start;
++ int acx_txbuf_numblocks;
++ u32 acx_txbuf_free; /* addr of head of free list */
++ int acx_txbuf_blocks_free; /* how many are still open */
++ queueindicator_t *acx_queue_indicator;
++#endif
++
++ /*** Card Rx/Tx management ***/
++ u16 rx_config_1;
++ u16 rx_config_2;
++ u16 memblocksize;
++ unsigned int tx_free;
++ unsigned int tx_head; /* keep as close as possible to Tx stuff below (cache line) */
++ u16 phy_header_len;
++
++/*************************************************************************
++ *** PCI/USB/... must be last or else hw agnostic code breaks horribly ***
++ *************************************************************************/
++
++ /* hack to let common code compile. FIXME */
++ dma_addr_t rxhostdesc_startphy;
++
++ /*** PCI stuff ***/
++#if defined(ACX_PCI) || defined(ACX_MEM)
++ /* pointers to tx buffers, tx host descriptors (in host memory)
++ ** and tx descs in device memory */
++ unsigned int tx_tail;
++ u8 *txbuf_start;
++ txhostdesc_t *txhostdesc_start;
++ txdesc_t *txdesc_start; /* points to PCI-mapped memory */
++ dma_addr_t txbuf_startphy;
++ dma_addr_t txhostdesc_startphy;
++ /* sizes of above host memory areas */
++ unsigned int txbuf_area_size;
++ unsigned int txhostdesc_area_size;
++
++ unsigned int txdesc_size; /* size of txdesc; ACX111 = ACX100 + 4 */
++ client_t *txc[TX_CNT];
++ u16 txr[TX_CNT];
++
++ /* same for rx */
++ unsigned int rx_tail;
++ rxbuffer_t *rxbuf_start;
++ rxhostdesc_t *rxhostdesc_start;
++ rxdesc_t *rxdesc_start;
++ /* physical addresses of above host memory areas */
++ dma_addr_t rxbuf_startphy;
++ /* dma_addr_t rxhostdesc_startphy; */
++ unsigned int rxbuf_area_size;
++ unsigned int rxhostdesc_area_size;
++
++ u8 need_radio_fw;
++ u8 irqs_active; /* whether irq sending is activated */
++
++ const u16 *io; /* points to ACX100 or ACX111 PCI I/O register address set */
++
++#ifdef ACX_PCI
++ struct pci_dev *pdev;
++#endif
++#ifdef ACX_MEM
++ struct device *dev;
++#endif
++
++#ifdef ACX_PCI
++ unsigned long membase;
++#endif
++#ifdef ACX_MEM
++ volatile u32 *membase;
++#endif
++ unsigned long membase2;
++#ifdef ACX_PCI
++ void __iomem *iobase;
++#endif
++#ifdef ACX_MEM
++ volatile u32 *iobase;
++#endif
++ void __iomem *iobase2;
++ /* command interface */
++ u8 __iomem *cmd_area;
++ u8 __iomem *info_area;
++
++ u16 irq_mask; /* interrupt types to mask out (not wanted) with many IRQs activated */
++ u16 irq_mask_off; /* interrupt types to mask out (not wanted) with IRQs off */
++ unsigned int irq_loops_this_jiffy;
++ unsigned long irq_last_jiffies;
++#endif
++
++ /*** USB stuff ***/
++#ifdef ACX_USB
++ struct usb_device *usbdev;
++
++ rxbuffer_t rxtruncbuf;
++
++ usb_tx_t *usb_tx;
++ usb_rx_t *usb_rx;
++
++ int bulkinep; /* bulk-in endpoint */
++ int bulkoutep; /* bulk-out endpoint */
++ int rxtruncsize;
++#endif
++
++};
++
++static inline acx_device_t*
++ndev2adev(struct net_device *ndev)
++{
++ return netdev_priv(ndev);
++}
++
++
++/* For use with ACX1xx_IE_RXCONFIG */
++/* bit description
++ * 13 include additional header (length etc.) *required*
++ * struct is defined in 'struct rxbuffer'
++ * is this bit acx100 only? does acx111 always put the header,
++ * and bit setting is irrelevant? --vda
++ * 10 receive frames only with SSID used in last join cmd
++ * 9 discard broadcast
++ * 8 receive packets for multicast address 1
++ * 7 receive packets for multicast address 0
++ * 6 discard all multicast packets
++ * 5 discard frames from foreign BSSID
++ * 4 discard frames with foreign destination MAC address
++ * 3 promiscuous mode (receive ALL frames, disable filter)
++ * 2 include FCS
++ * 1 include phy header
++ * 0 ???
++ */
++#define RX_CFG1_INCLUDE_RXBUF_HDR 0x2000 /* ACX100 only */
++#define RX_CFG1_FILTER_SSID 0x0400
++#define RX_CFG1_FILTER_BCAST 0x0200
++#define RX_CFG1_RCV_MC_ADDR1 0x0100
++#define RX_CFG1_RCV_MC_ADDR0 0x0080
++#define RX_CFG1_FILTER_ALL_MULTI 0x0040
++#define RX_CFG1_FILTER_BSSID 0x0020
++#define RX_CFG1_FILTER_MAC 0x0010
++#define RX_CFG1_RCV_PROMISCUOUS 0x0008
++#define RX_CFG1_INCLUDE_FCS 0x0004
++#define RX_CFG1_INCLUDE_PHY_HDR (WANT_PHY_HDR ? 0x0002 : 0)
++/* bit description
++ * 11 receive association requests etc.
++ * 10 receive authentication frames
++ * 9 receive beacon frames
++ * 8 receive contention free packets
++ * 7 receive control frames
++ * 6 receive data frames
++ * 5 receive broken frames
++ * 4 receive management frames
++ * 3 receive probe requests
++ * 2 receive probe responses
++ * 1 receive RTS/CTS/ACK frames
++ * 0 receive other
++ */
++#define RX_CFG2_RCV_ASSOC_REQ 0x0800
++#define RX_CFG2_RCV_AUTH_FRAMES 0x0400
++#define RX_CFG2_RCV_BEACON_FRAMES 0x0200
++#define RX_CFG2_RCV_CONTENTION_FREE 0x0100
++#define RX_CFG2_RCV_CTRL_FRAMES 0x0080
++#define RX_CFG2_RCV_DATA_FRAMES 0x0040
++#define RX_CFG2_RCV_BROKEN_FRAMES 0x0020
++#define RX_CFG2_RCV_MGMT_FRAMES 0x0010
++#define RX_CFG2_RCV_PROBE_REQ 0x0008
++#define RX_CFG2_RCV_PROBE_RESP 0x0004
++#define RX_CFG2_RCV_ACK_FRAMES 0x0002
++#define RX_CFG2_RCV_OTHER 0x0001
++
++/* For use with ACX1xx_IE_FEATURE_CONFIG */
++#define FEATURE1_80MHZ_CLOCK 0x00000040L
++#define FEATURE1_4X 0x00000020L
++#define FEATURE1_LOW_RX 0x00000008L
++#define FEATURE1_EXTRA_LOW_RX 0x00000001L
++
++#define FEATURE2_SNIFFER 0x00000080L
++#define FEATURE2_NO_TXCRYPT 0x00000001L
++
++/*-- get and set mask values --*/
++#define GETSET_LED_POWER 0x00000001L
++#define GETSET_STATION_ID 0x00000002L
++#define SET_TEMPLATES 0x00000004L
++#define SET_STA_LIST 0x00000008L
++#define GETSET_TX 0x00000010L
++#define GETSET_RX 0x00000020L
++#define SET_RXCONFIG 0x00000040L
++#define GETSET_ANTENNA 0x00000080L
++#define GETSET_SENSITIVITY 0x00000100L
++#define GETSET_TXPOWER 0x00000200L
++#define GETSET_ED_THRESH 0x00000400L
++#define GETSET_CCA 0x00000800L
++#define GETSET_POWER_80211 0x00001000L
++#define GETSET_RETRY 0x00002000L
++#define GETSET_REG_DOMAIN 0x00004000L
++#define GETSET_CHANNEL 0x00008000L
++/* Used when ESSID changes etc and we need to scan for AP anew */
++#define GETSET_RESCAN 0x00010000L
++#define GETSET_MODE 0x00020000L
++#define GETSET_WEP 0x00040000L
++#define SET_WEP_OPTIONS 0x00080000L
++#define SET_MSDU_LIFETIME 0x00100000L
++#define SET_RATE_FALLBACK 0x00200000L
++
++/* keep in sync with the above */
++#define GETSET_ALL (0 \
++/* GETSET_LED_POWER */ | 0x00000001L \
++/* GETSET_STATION_ID */ | 0x00000002L \
++/* SET_TEMPLATES */ | 0x00000004L \
++/* SET_STA_LIST */ | 0x00000008L \
++/* GETSET_TX */ | 0x00000010L \
++/* GETSET_RX */ | 0x00000020L \
++/* SET_RXCONFIG */ | 0x00000040L \
++/* GETSET_ANTENNA */ | 0x00000080L \
++/* GETSET_SENSITIVITY */| 0x00000100L \
++/* GETSET_TXPOWER */ | 0x00000200L \
++/* GETSET_ED_THRESH */ | 0x00000400L \
++/* GETSET_CCA */ | 0x00000800L \
++/* GETSET_POWER_80211 */| 0x00001000L \
++/* GETSET_RETRY */ | 0x00002000L \
++/* GETSET_REG_DOMAIN */ | 0x00004000L \
++/* GETSET_CHANNEL */ | 0x00008000L \
++/* GETSET_RESCAN */ | 0x00010000L \
++/* GETSET_MODE */ | 0x00020000L \
++/* GETSET_WEP */ | 0x00040000L \
++/* SET_WEP_OPTIONS */ | 0x00080000L \
++/* SET_MSDU_LIFETIME */ | 0x00100000L \
++/* SET_RATE_FALLBACK */ | 0x00200000L \
++ )
++
++
++/***********************************************************************
++** Firmware loading
++*/
++#include <linux/firmware.h> /* request_firmware() */
++#include <linux/pci.h> /* struct pci_device */
++
++
++/***********************************************************************
++*/
++typedef struct acx100_ie_memblocksize {
++ u16 type;
++ u16 len;
++ u16 size;
++} ACX_PACKED acx100_ie_memblocksize_t;
++
++typedef struct acx100_ie_queueconfig {
++ u16 type;
++ u16 len;
++ u32 AreaSize;
++ u32 RxQueueStart;
++ u8 QueueOptions;
++ u8 NumTxQueues;
++ u8 NumRxDesc; /* for USB only */
++ u8 pad1;
++ u32 QueueEnd;
++ u32 HostQueueEnd; /* QueueEnd2 */
++ u32 TxQueueStart;
++ u8 TxQueuePri;
++ u8 NumTxDesc;
++ u16 pad2;
++} ACX_PACKED acx100_ie_queueconfig_t;
++
++typedef struct acx111_ie_queueconfig {
++ u16 type;
++ u16 len;
++ u32 tx_memory_block_address;
++ u32 rx_memory_block_address;
++ u32 rx1_queue_address;
++ u32 reserved1;
++ u32 tx1_queue_address;
++ u8 tx1_attributes;
++ u16 reserved2;
++ u8 reserved3;
++} ACX_PACKED acx111_ie_queueconfig_t;
++
++typedef struct acx100_ie_memconfigoption {
++ u16 type;
++ u16 len;
++ u32 DMA_config;
++ acx_ptr pRxHostDesc;
++ u32 rx_mem;
++ u32 tx_mem;
++ u16 RxBlockNum;
++ u16 TxBlockNum;
++} ACX_PACKED acx100_ie_memconfigoption_t;
++
++typedef struct acx111_ie_memoryconfig {
++ u16 type;
++ u16 len;
++ u16 no_of_stations;
++ u16 memory_block_size;
++ u8 tx_rx_memory_block_allocation;
++ u8 count_rx_queues;
++ u8 count_tx_queues;
++ u8 options;
++ u8 fragmentation;
++ u16 reserved1;
++ u8 reserved2;
++
++ /* start of rx1 block */
++ u8 rx_queue1_count_descs;
++ u8 rx_queue1_reserved1;
++ u8 rx_queue1_type; /* must be set to 7 */
++ u8 rx_queue1_prio; /* must be set to 0 */
++ acx_ptr rx_queue1_host_rx_start;
++ /* end of rx1 block */
++
++ /* start of tx1 block */
++ u8 tx_queue1_count_descs;
++ u8 tx_queue1_reserved1;
++ u8 tx_queue1_reserved2;
++ u8 tx_queue1_attributes;
++ /* end of tx1 block */
++} ACX_PACKED acx111_ie_memoryconfig_t;
++
++typedef struct acx_ie_memmap {
++ u16 type;
++ u16 len;
++ u32 CodeStart;
++ u32 CodeEnd;
++ u32 WEPCacheStart;
++ u32 WEPCacheEnd;
++ u32 PacketTemplateStart;
++ u32 PacketTemplateEnd;
++ u32 QueueStart;
++ u32 QueueEnd;
++ u32 PoolStart;
++ u32 PoolEnd;
++} ACX_PACKED acx_ie_memmap_t;
++
++typedef struct acx111_ie_feature_config {
++ u16 type;
++ u16 len;
++ u32 feature_options;
++ u32 data_flow_options;
++} ACX_PACKED acx111_ie_feature_config_t;
++
++typedef struct acx111_ie_tx_level {
++ u16 type;
++ u16 len;
++ u8 level;
++} ACX_PACKED acx111_ie_tx_level_t;
++
++#define PS_CFG_ENABLE 0x80
++#define PS_CFG_PENDING 0x40 /* status flag when entering PS */
++#define PS_CFG_WAKEUP_MODE_MASK 0x07
++#define PS_CFG_WAKEUP_BY_HOST 0x03
++#define PS_CFG_WAKEUP_EACH_ITVL 0x02
++#define PS_CFG_WAKEUP_ON_DTIM 0x01
++#define PS_CFG_WAKEUP_ALL_BEAC 0x00
++
++/* Enhanced PS mode: sleep until Rx Beacon w/ the STA's AID bit set
++** in the TIM; newer firmwares only(?) */
++#define PS_OPT_ENA_ENHANCED_PS 0x04
++#define PS_OPT_TX_PSPOLL 0x02 /* send PSPoll frame to fetch waiting frames from AP (on frame with matching AID) */
++#define PS_OPT_STILL_RCV_BCASTS 0x01
++
++typedef struct acx100_ie_powersave {
++ u16 type;
++ u16 len;
++ u8 wakeup_cfg;
++ u8 listen_interval; /* for EACH_ITVL: wake up every "beacon units" interval */
++ u8 options;
++ u8 hangover_period; /* remaining wake time after Tx MPDU w/ PS bit, in values of 1/1024 seconds */
++ u16 enhanced_ps_transition_time; /* rem. wake time for Enh. PS */
++} ACX_PACKED acx100_ie_powersave_t;
++
++typedef struct acx111_ie_powersave {
++ u16 type;
++ u16 len;
++ u8 wakeup_cfg;
++ u8 listen_interval; /* for EACH_ITVL: wake up every "beacon units" interval */
++ u8 options;
++ u8 hangover_period; /* remaining wake time after Tx MPDU w/ PS bit, in values of 1/1024 seconds */
++ u32 beacon_rx_time;
++ u32 enhanced_ps_transition_time; /* rem. wake time for Enh. PS */
++} ACX_PACKED acx111_ie_powersave_t;
++
++
++/***********************************************************************
++** Commands and template structures
++*/
++
++/*
++** SCAN command structure
++**
++** even though acx100 scan rates match RATE100 constants,
++** acx111 ones do not match! Therefore we do not use RATE100 #defines */
++#define ACX_SCAN_RATE_1 10
++#define ACX_SCAN_RATE_2 20
++#define ACX_SCAN_RATE_5 55
++#define ACX_SCAN_RATE_11 110
++#define ACX_SCAN_RATE_22 220
++#define ACX_SCAN_RATE_PBCC 0x80 /* OR with this if needed */
++#define ACX_SCAN_OPT_ACTIVE 0x00 /* a bit mask */
++#define ACX_SCAN_OPT_PASSIVE 0x01
++/* Background scan: we go into Power Save mode (by transmitting
++** NULL data frame to AP with the power mgmt bit set), do the scan,
++** and then exit Power Save mode. A plus is that AP buffers frames
++** for us while we do background scan. Thus we avoid frame losses.
++** Background scan can be active or passive, just like normal one */
++#define ACX_SCAN_OPT_BACKGROUND 0x02
++typedef struct acx100_scan {
++ u16 count; /* number of scans to do, 0xffff == continuous */
++ u16 start_chan;
++ u16 flags; /* channel list mask; 0x8000 == all channels? */
++ u8 max_rate; /* max. probe rate */
++ u8 options; /* bit mask, see defines above */
++ u16 chan_duration;
++ u16 max_probe_delay;
++} ACX_PACKED acx100_scan_t; /* length 0xc */
++
++#define ACX111_SCAN_RATE_6 0x0B
++#define ACX111_SCAN_RATE_9 0x0F
++#define ACX111_SCAN_RATE_12 0x0A
++#define ACX111_SCAN_RATE_18 0x0E
++#define ACX111_SCAN_RATE_24 0x09
++#define ACX111_SCAN_RATE_36 0x0D
++#define ACX111_SCAN_RATE_48 0x08
++#define ACX111_SCAN_RATE_54 0x0C
++#define ACX111_SCAN_OPT_5GHZ 0x04 /* else 2.4GHZ */
++#define ACX111_SCAN_MOD_SHORTPRE 0x01 /* you can combine SHORTPRE and PBCC */
++#define ACX111_SCAN_MOD_PBCC 0x80
++#define ACX111_SCAN_MOD_OFDM 0x40
++typedef struct acx111_scan {
++ u16 count; /* number of scans to do */
++ u8 channel_list_select; /* 0: scan all channels, 1: from chan_list only */
++ u16 reserved1;
++ u8 reserved2;
++ u8 rate; /* rate for probe requests (if active scan) */
++ u8 options; /* bit mask, see defines above */
++ u16 chan_duration; /* min time to wait for reply on one channel (in TU) */
++ /* (active scan only) (802.11 section 11.1.3.2.2) */
++ u16 max_probe_delay; /* max time to wait for reply on one channel (active scan) */
++ /* time to listen on a channel (passive scan) */
++ u8 modulation;
++ u8 channel_list[26]; /* bits 7:0 first byte: channels 8:1 */
++ /* bits 7:0 second byte: channels 16:9 */
++ /* 26 bytes is enough to cover 802.11a */
++} ACX_PACKED acx111_scan_t;
++
++
++/*
++** Radio calibration command structure
++*/
++typedef struct acx111_cmd_radiocalib {
++/* 0x80000000 == automatic calibration by firmware, according to interval;
++ * bits 0..3: select calibration methods to go through:
++ * calib based on DC, AfeDC, Tx mismatch, Tx equilization */
++ u32 methods;
++ u32 interval;
++} ACX_PACKED acx111_cmd_radiocalib_t;
++
++
++/*
++** Packet template structures
++**
++** Packet templates store contents of Beacon, Probe response, Probe request,
++** Null data frame, and TIM data frame. Firmware automatically transmits
++** contents of template at appropriate time:
++** - Beacon: when configured as AP or Ad-hoc
++** - Probe response: when configured as AP or Ad-hoc, whenever
++** a Probe request frame is received
++** - Probe request: when host issues SCAN command (active)
++** - Null data frame: when entering 802.11 power save mode
++** - TIM data: at the end of Beacon frames (if no TIM template
++** is configured, then transmits default TIM)
++** NB:
++** - size field must be set to size of actual template
++** (NOT sizeof(struct) - templates are variable in length),
++** size field is not itself counted.
++** - members flagged with an asterisk must be initialized with host,
++** rest must be zero filled.
++** - variable length fields shown only in comments */
++typedef struct acx_template_tim {
++ u16 size;
++ u8 tim_eid; /* 00 1 TIM IE ID * */
++ u8 len; /* 01 1 Length * */
++ u8 dtim_cnt; /* 02 1 DTIM Count */
++ u8 dtim_period; /* 03 1 DTIM Period */
++ u8 bitmap_ctrl; /* 04 1 Bitmap Control * (except bit0) */
++ /* 05 n Partial Virtual Bitmap * */
++ u8 variable[0x100 - 1-1-1-1-1];
++} ACX_PACKED acx_template_tim_t;
++
++typedef struct acx_template_probereq {
++ u16 size;
++ u16 fc; /* 00 2 fc * */
++ u16 dur; /* 02 2 Duration */
++ u8 da[6]; /* 04 6 Destination Address * */
++ u8 sa[6]; /* 0A 6 Source Address * */
++ u8 bssid[6]; /* 10 6 BSSID * */
++ u16 seq; /* 16 2 Sequence Control */
++ /* 18 n SSID * */
++ /* nn n Supported Rates * */
++ u8 variable[0x44 - 2-2-6-6-6-2];
++} ACX_PACKED acx_template_probereq_t;
++
++typedef struct acx_template_proberesp {
++ u16 size;
++ u16 fc; /* 00 2 fc * (bits [15:12] and [10:8] per 802.11 section 7.1.3.1) */
++ u16 dur; /* 02 2 Duration */
++ u8 da[6]; /* 04 6 Destination Address */
++ u8 sa[6]; /* 0A 6 Source Address */
++ u8 bssid[6]; /* 10 6 BSSID */
++ u16 seq; /* 16 2 Sequence Control */
++ u8 timestamp[8];/* 18 8 Timestamp */
++ u16 beacon_interval; /* 20 2 Beacon Interval * */
++ u16 cap; /* 22 2 Capability Information * */
++ /* 24 n SSID * */
++ /* nn n Supported Rates * */
++ /* nn 1 DS Parameter Set * */
++ u8 variable[0x54 - 2-2-6-6-6-2-8-2-2];
++} ACX_PACKED acx_template_proberesp_t;
++#define acx_template_beacon_t acx_template_proberesp_t
++#define acx_template_beacon acx_template_proberesp
++
++typedef struct acx_template_nullframe {
++ u16 size;
++ struct wlan_hdr_a3 hdr;
++} ACX_PACKED acx_template_nullframe_t;
++
++
++/*
++** JOIN command structure
++**
++** as opposed to acx100, acx111 dtim interval is AFTER rates_basic111.
++** NOTE: took me about an hour to get !@#$%^& packing right --> struct packing is eeeeevil... */
++typedef struct acx_joinbss {
++ u8 bssid[ETH_ALEN];
++ u16 beacon_interval;
++ union {
++ struct {
++ u8 dtim_interval;
++ u8 rates_basic;
++ u8 rates_supported;
++ /*
++ * ARM compiler doesn't pack correctly unless unions
++ * inside structures are multiples of 4 bytes. Ugh.
++ */
++ u8 genfrm_txrate; /* generated frame (bcn, proberesp, RTS, PSpoll) tx rate */
++ } ACX_PACKED acx100;
++ struct {
++ u16 rates_basic;
++ u8 dtim_interval;
++ u8 genfrm_txrate; /* generated frame (bcn, proberesp, RTS, PSpoll) tx rate */
++ } ACX_PACKED acx111;
++ /*
++ * ARM compiler doesn't pack correctly unles unions are aligned on
++ * 4 byte boundaries and are multiples of 4 bytes.
++ */
++ struct {
++ u8 d1;
++ u8 d2;
++ u8 d3;
++ u8 genfrm_txrate;
++ } ACX_PACKED txrate;
++ } ACX_PACKED u;
++ u8 genfrm_mod_pre; /* generated frame modulation/preamble:
++ ** bit7: PBCC, bit6: OFDM (else CCK/DQPSK/DBPSK)
++ ** bit5: short pre */
++ u8 macmode; /* BSS Type, must be one of ACX_MODE_xxx */
++ u8 channel;
++ u8 essid_len;
++ char essid[IW_ESSID_MAX_SIZE];
++} ACX_PACKED acx_joinbss_t;
++
++#define JOINBSS_RATES_1 0x01
++#define JOINBSS_RATES_2 0x02
++#define JOINBSS_RATES_5 0x04
++#define JOINBSS_RATES_11 0x08
++#define JOINBSS_RATES_22 0x10
++
++/* Looks like missing bits are used to indicate 11g rates!
++** (it follows from the fact that constants below match 1:1 to RATE111_nn)
++** This was actually seen! Look at that Assoc Request sent by acx111,
++** it _does_ contain 11g rates in basic set:
++01:30:20.070772 Beacon (xxx) [1.0* 2.0* 5.5* 11.0* 6.0* 9.0* 12.0* 18.0* 24.0* 36.0* 48.0* 54.0* Mbit] ESS CH: 1
++01:30:20.074425 Authentication (Open System)-1: Succesful
++01:30:20.076539 Authentication (Open System)-2:
++01:30:20.076620 Acknowledgment
++01:30:20.088546 Assoc Request (xxx) [1.0* 2.0* 5.5* 6.0* 9.0* 11.0* 12.0* 18.0* 24.0* 36.0* 48.0* 54.0* Mbit]
++01:30:20.122413 Assoc Response AID(1) :: Succesful
++01:30:20.122679 Acknowledgment
++01:30:20.173204 Beacon (xxx) [1.0* 2.0* 5.5* 11.0* 6.0* 9.0* 12.0* 18.0* 24.0* 36.0* 48.0* 54.0* Mbit] ESS CH: 1
++*/
++#define JOINBSS_RATES_BASIC111_1 0x0001
++#define JOINBSS_RATES_BASIC111_2 0x0002
++#define JOINBSS_RATES_BASIC111_5 0x0004
++#define JOINBSS_RATES_BASIC111_11 0x0020
++#define JOINBSS_RATES_BASIC111_22 0x0100
++
++
++/***********************************************************************
++*/
++typedef struct mem_read_write {
++ u16 addr;
++ u16 type; /* 0x0 int. RAM / 0xffff MAC reg. / 0x81 PHY RAM / 0x82 PHY reg.; or maybe it's actually 0x30 for MAC? Better verify it by writing and reading back and checking whether the value holds! */
++ u32 len;
++ u32 data;
++} ACX_PACKED mem_read_write_t;
++
++typedef struct firmware_image {
++ u32 chksum;
++ u32 size;
++ u8 data[1]; /* the byte array of the actual firmware... */
++} ACX_PACKED firmware_image_t;
++
++typedef struct acx_cmd_radioinit {
++ u32 offset;
++ u32 len;
++} ACX_PACKED acx_cmd_radioinit_t;
++
++typedef struct acx100_ie_wep_options {
++ u16 type;
++ u16 len;
++ u16 NumKeys; /* max # of keys */
++ u8 WEPOption; /* 0 == decrypt default key only, 1 == override decrypt */
++ u8 Pad; /* used only for acx111 */
++} ACX_PACKED acx100_ie_wep_options_t;
++
++typedef struct ie_dot11WEPDefaultKey {
++ u16 type;
++ u16 len;
++ u8 action;
++ u8 keySize;
++ u8 defaultKeyNum;
++ u8 key[29]; /* check this! was Key[19] */
++} ACX_PACKED ie_dot11WEPDefaultKey_t;
++
++typedef struct acx111WEPDefaultKey {
++ u8 MacAddr[ETH_ALEN];
++ u16 action; /* NOTE: this is a u16, NOT a u8!! */
++ u16 reserved;
++ u8 keySize;
++ u8 type;
++ u8 index;
++ u8 defaultKeyNum;
++ u8 counter[6];
++ u8 key[32]; /* up to 32 bytes (for TKIP!) */
++} ACX_PACKED acx111WEPDefaultKey_t;
++
++typedef struct ie_dot11WEPDefaultKeyID {
++ u16 type;
++ u16 len;
++ u8 KeyID;
++} ACX_PACKED ie_dot11WEPDefaultKeyID_t;
++
++typedef struct acx100_cmd_wep_mgmt {
++ u8 MacAddr[ETH_ALEN];
++ u16 Action;
++ u16 KeySize;
++ u8 Key[29]; /* 29*8 == 232bits == WEP256 */
++} ACX_PACKED acx100_cmd_wep_mgmt_t;
++
++typedef struct acx_ie_generic {
++ u16 type;
++ u16 len;
++ union {
++ /* Association ID IE: just a 16bit value: */
++ u16 aid;
++ /* generic member for quick implementation of commands */
++ u8 bytes[32];
++ } ACX_PACKED m;
++} ACX_PACKED acx_ie_generic_t;
++
++/***********************************************************************
++*/
++#define CHECK_SIZEOF(type,size) { \
++ extern void BUG_bad_size_for_##type(void); \
++ if (sizeof(type)!=(size)) BUG_bad_size_for_##type(); \
++}
++
++static inline void
++acx_struct_size_check(void)
++{
++ CHECK_SIZEOF(txdesc_t, 0x30);
++ CHECK_SIZEOF(acx100_ie_memconfigoption_t, 24);
++ CHECK_SIZEOF(acx100_ie_queueconfig_t, 0x20);
++ CHECK_SIZEOF(acx_joinbss_t, 0x30);
++ /* IEs need 4 bytes for (type,len) tuple */
++ CHECK_SIZEOF(acx111_ie_configoption_t, ACX111_IE_CONFIG_OPTIONS_LEN + 4);
++}
++
++
++/***********************************************************************
++** Global data
++*/
++extern const u8 acx_bitpos2ratebyte[];
++extern const u8 acx_bitpos2rate100[];
++
++extern const u8 acx_reg_domain_ids[];
++extern const char * const acx_reg_domain_strings[];
++enum {
++ acx_reg_domain_ids_len = 8
++};
++
++extern const struct iw_handler_def acx_ioctl_handler_def;
+Index: linux-2.6.22/drivers/net/wireless/acx/common.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/common.c 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,7388 @@
++/***********************************************************************
++** Copyright (C) 2003 ACX100 Open Source Project
++**
++** The contents of this file are subject to the Mozilla Public
++** License Version 1.1 (the "License"); you may not use this file
++** except in compliance with the License. You may obtain a copy of
++** the License at http://www.mozilla.org/MPL/
++**
++** Software distributed under the License is distributed on an "AS
++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
++** implied. See the License for the specific language governing
++** rights and limitations under the License.
++**
++** Alternatively, the contents of this file may be used under the
++** terms of the GNU Public License version 2 (the "GPL"), in which
++** case the provisions of the GPL are applicable instead of the
++** above. If you wish to allow the use of your version of this file
++** only under the terms of the GPL and not to allow others to use
++** your version of this file under the MPL, indicate your decision
++** by deleting the provisions above and replace them with the notice
++** and other provisions required by the GPL. If you do not delete
++** the provisions above, a recipient may use your version of this
++** file under either the MPL or the GPL.
++** ---------------------------------------------------------------------
++** Inquiries regarding the ACX100 Open Source Project can be
++** made directly to:
++**
++** acx100-users@lists.sf.net
++** http://acx100.sf.net
++** ---------------------------------------------------------------------
++*/
++
++#include <linux/version.h>
++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
++#include <linux/config.h>
++#endif
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/types.h>
++#include <linux/slab.h>
++#include <linux/delay.h>
++#include <linux/proc_fs.h>
++#include <linux/if_arp.h>
++#include <linux/rtnetlink.h>
++#include <linux/netdevice.h>
++#include <linux/etherdevice.h>
++#include <linux/wireless.h>
++#include <linux/pm.h>
++#include <linux/vmalloc.h>
++#include <net/iw_handler.h>
++
++#include "acx_hw.h"
++#include "acx.h"
++
++
++/***********************************************************************
++*/
++static client_t *acx_l_sta_list_alloc(acx_device_t *adev);
++static client_t *acx_l_sta_list_get_from_hash(acx_device_t *adev, const u8 *address);
++
++static int acx_l_process_data_frame_master(acx_device_t *adev, rxbuffer_t *rxbuf);
++static int acx_l_process_data_frame_client(acx_device_t *adev, rxbuffer_t *rxbuf);
++/* static int acx_l_process_NULL_frame(acx_device_t *adev, rxbuffer_t *rxbuf, int vala); */
++static int acx_l_process_mgmt_frame(acx_device_t *adev, rxbuffer_t *rxbuf);
++static void acx_l_process_disassoc_from_sta(acx_device_t *adev, const wlan_fr_disassoc_t *req);
++static void acx_l_process_disassoc_from_ap(acx_device_t *adev, const wlan_fr_disassoc_t *req);
++static void acx_l_process_deauth_from_sta(acx_device_t *adev, const wlan_fr_deauthen_t *req);
++static void acx_l_process_deauth_from_ap(acx_device_t *adev, const wlan_fr_deauthen_t *req);
++static int acx_l_process_probe_response(acx_device_t *adev, wlan_fr_proberesp_t *req, const rxbuffer_t *rxbuf);
++static int acx_l_process_assocresp(acx_device_t *adev, const wlan_fr_assocresp_t *req);
++static int acx_l_process_reassocresp(acx_device_t *adev, const wlan_fr_reassocresp_t *req);
++static int acx_l_process_authen(acx_device_t *adev, const wlan_fr_authen_t *req);
++static int acx_l_transmit_assocresp(acx_device_t *adev, const wlan_fr_assocreq_t *req);
++static int acx_l_transmit_reassocresp(acx_device_t *adev, const wlan_fr_reassocreq_t *req);
++static int acx_l_transmit_deauthen(acx_device_t *adev, const u8 *addr, u16 reason);
++static int acx_l_transmit_authen1(acx_device_t *adev);
++static int acx_l_transmit_authen2(acx_device_t *adev, const wlan_fr_authen_t *req, client_t *clt);
++static int acx_l_transmit_authen3(acx_device_t *adev, const wlan_fr_authen_t *req);
++static int acx_l_transmit_authen4(acx_device_t *adev, const wlan_fr_authen_t *req);
++static int acx_l_transmit_assoc_req(acx_device_t *adev);
++
++
++/***********************************************************************
++*/
++#if ACX_DEBUG
++unsigned int acx_debug /* will add __read_mostly later */ = ACX_DEFAULT_MSG;
++/* parameter is 'debug', corresponding var is acx_debug */
++module_param_named(debug, acx_debug, uint, 0);
++MODULE_PARM_DESC(debug, "Debug level mask (see L_xxx constants)");
++#endif
++
++#ifdef MODULE_LICENSE
++MODULE_LICENSE("Dual MPL/GPL");
++#endif
++/* USB had this: MODULE_AUTHOR("Martin Wawro <martin.wawro AT uni-dortmund.de>"); */
++MODULE_AUTHOR("ACX100 Open Source Driver development team");
++MODULE_DESCRIPTION("Driver for TI ACX1xx based wireless cards (CardBus/PCI/USB)");
++
++
++/***********************************************************************
++*/
++/* Probably a number of acx's intermediate buffers for USB transfers,
++** not to be confused with number of descriptors in tx/rx rings
++** (which are not directly accessible to host in USB devices) */
++#define USB_RX_CNT 10
++#define USB_TX_CNT 10
++
++
++/***********************************************************************
++*/
++
++/* minutes to wait until next radio recalibration: */
++#define RECALIB_PAUSE 5
++
++/* Please keep acx_reg_domain_ids_len in sync... */
++const u8 acx_reg_domain_ids[acx_reg_domain_ids_len] =
++ { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40, 0x41, 0x51 };
++static const u16 reg_domain_channel_masks[acx_reg_domain_ids_len] =
++#ifdef ACX_ALLOW_ALLCHANNELS
++ { 0x3fff, 0x07ff, 0x1fff, 0x0600, 0x1e00, 0x2000, 0x3fff, 0x01fc };
++#else
++ { 0x07ff, 0x07ff, 0x1fff, 0x0600, 0x1e00, 0x2000, 0x3fff, 0x01fc };
++#endif
++const char * const
++acx_reg_domain_strings[] = {
++ /* 0 */ " 1-11 FCC (USA)",
++ /* 1 */ " 1-11 DOC/IC (Canada)",
++/* BTW: WLAN use in ETSI is regulated by ETSI standard EN 300 328-2 V1.1.2 */
++ /* 2 */ " 1-13 ETSI (Europe)",
++ /* 3 */ "10-11 Spain",
++ /* 4 */ "10-13 France",
++ /* 5 */ " 14 MKK (Japan)",
++ /* 6 */ " 1-14 MKK1",
++ /* 7 */ " 3-9 Israel (not all firmware versions)",
++ NULL /* needs to remain as last entry */
++};
++
++
++
++/***********************************************************************
++** Debugging support
++*/
++#ifdef PARANOID_LOCKING
++static unsigned max_lock_time;
++static unsigned max_sem_time;
++
++void
++acx_lock_unhold() { max_lock_time = 0; }
++void
++acx_sem_unhold() { max_sem_time = 0; }
++
++static inline const char*
++sanitize_str(const char *s)
++{
++ const char* t = strrchr(s, '/');
++ if (t) return t + 1;
++ return s;
++}
++
++void
++acx_lock_debug(acx_device_t *adev, const char* where)
++{
++ unsigned int count = 100*1000*1000;
++ where = sanitize_str(where);
++ while (--count) {
++ if (!spin_is_locked(&adev->lock)) break;
++ cpu_relax();
++ }
++ if (!count) {
++ printk(KERN_EMERG "LOCKUP: already taken at %s!\n", adev->last_lock);
++ BUG();
++ }
++ adev->last_lock = where;
++ rdtscl(adev->lock_time);
++}
++void
++acx_unlock_debug(acx_device_t *adev, const char* where)
++{
++#ifdef SMP
++ if (!spin_is_locked(&adev->lock)) {
++ where = sanitize_str(where);
++ printk(KERN_EMERG "STRAY UNLOCK at %s!\n", where);
++ BUG();
++ }
++#endif
++ if (acx_debug & L_LOCK) {
++ unsigned long diff;
++ rdtscl(diff);
++ diff -= adev->lock_time;
++ if (diff > max_lock_time) {
++ where = sanitize_str(where);
++ printk("max lock hold time %ld CPU ticks from %s "
++ "to %s\n", diff, adev->last_lock, where);
++ max_lock_time = diff;
++ }
++ }
++}
++void
++acx_down_debug(acx_device_t *adev, const char* where)
++{
++ int sem_count;
++ unsigned long timeout = jiffies + 5*HZ;
++
++ where = sanitize_str(where);
++
++ for (;;) {
++ sem_count = atomic_read(&adev->sem.count);
++ if (sem_count) break;
++ if (time_after(jiffies, timeout))
++ break;
++ msleep(5);
++ }
++ if (!sem_count) {
++ printk(KERN_EMERG "D STATE at %s! last sem at %s\n",
++ where, adev->last_sem);
++ dump_stack();
++ }
++ adev->last_sem = where;
++ adev->sem_time = jiffies;
++ down(&adev->sem);
++ if (acx_debug & L_LOCK) {
++ printk("%s: sem_down %d -> %d\n",
++ where, sem_count, atomic_read(&adev->sem.count));
++ }
++}
++void
++acx_up_debug(acx_device_t *adev, const char* where)
++{
++ int sem_count = atomic_read(&adev->sem.count);
++ if (sem_count) {
++ where = sanitize_str(where);
++ printk(KERN_EMERG "STRAY UP at %s! sem.count=%d\n", where, sem_count);
++ dump_stack();
++ }
++ if (acx_debug & L_LOCK) {
++ unsigned long diff = jiffies - adev->sem_time;
++ if (diff > max_sem_time) {
++ where = sanitize_str(where);
++ printk("max sem hold time %ld jiffies from %s "
++ "to %s\n", diff, adev->last_sem, where);
++ max_sem_time = diff;
++ }
++ }
++ up(&adev->sem);
++ if (acx_debug & L_LOCK) {
++ where = sanitize_str(where);
++ printk("%s: sem_up %d -> %d\n",
++ where, sem_count, atomic_read(&adev->sem.count));
++ }
++}
++#endif /* PARANOID_LOCKING */
++
++
++/***********************************************************************
++*/
++#if ACX_DEBUG > 1
++
++static int acx_debug_func_indent;
++#define DEBUG_TSC 0
++#define FUNC_INDENT_INCREMENT 2
++
++#if DEBUG_TSC
++#define TIMESTAMP(d) unsigned long d; rdtscl(d)
++#else
++#define TIMESTAMP(d) unsigned long d = jiffies
++#endif
++
++static const char
++spaces[] = " " " "; /* Nx10 spaces */
++
++void
++log_fn_enter(const char *funcname)
++{
++ int indent;
++ TIMESTAMP(d);
++
++ indent = acx_debug_func_indent;
++ if (indent >= sizeof(spaces))
++ indent = sizeof(spaces)-1;
++
++ printk("%08ld %s==> %s\n",
++ d % 100000000,
++ spaces + (sizeof(spaces)-1) - indent,
++ funcname
++ );
++
++ acx_debug_func_indent += FUNC_INDENT_INCREMENT;
++}
++void
++log_fn_exit(const char *funcname)
++{
++ int indent;
++ TIMESTAMP(d);
++
++ acx_debug_func_indent -= FUNC_INDENT_INCREMENT;
++
++ indent = acx_debug_func_indent;
++ if (indent >= sizeof(spaces))
++ indent = sizeof(spaces)-1;
++
++ printk("%08ld %s<== %s\n",
++ d % 100000000,
++ spaces + (sizeof(spaces)-1) - indent,
++ funcname
++ );
++}
++void
++log_fn_exit_v(const char *funcname, int v)
++{
++ int indent;
++ TIMESTAMP(d);
++
++ acx_debug_func_indent -= FUNC_INDENT_INCREMENT;
++
++ indent = acx_debug_func_indent;
++ if (indent >= sizeof(spaces))
++ indent = sizeof(spaces)-1;
++
++ printk("%08ld %s<== %s: %08X\n",
++ d % 100000000,
++ spaces + (sizeof(spaces)-1) - indent,
++ funcname,
++ v
++ );
++}
++#endif /* ACX_DEBUG > 1 */
++
++
++/***********************************************************************
++** Basically a msleep with logging
++*/
++void
++acx_s_msleep(int ms)
++{
++ FN_ENTER;
++ msleep(ms);
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** Not inlined: it's larger than it seems
++*/
++void
++acx_print_mac(const char *head, const u8 *mac, const char *tail)
++{
++ printk("%s"MACSTR"%s", head, MAC(mac), tail);
++}
++
++
++/***********************************************************************
++** acx_get_status_name
++*/
++static const char*
++acx_get_status_name(u16 status)
++{
++ static const char * const str[] = {
++ "STOPPED", "SCANNING", "WAIT_AUTH",
++ "AUTHENTICATED", "ASSOCIATED", "INVALID??"
++ };
++ if (status > VEC_SIZE(str)-1)
++ status = VEC_SIZE(str)-1;
++
++ return str[status];
++}
++
++
++/***********************************************************************
++** acx_get_packet_type_string
++*/
++#if ACX_DEBUG
++const char*
++acx_get_packet_type_string(u16 fc)
++{
++ static const char * const mgmt_arr[] = {
++ "MGMT/AssocReq", "MGMT/AssocResp", "MGMT/ReassocReq",
++ "MGMT/ReassocResp", "MGMT/ProbeReq", "MGMT/ProbeResp",
++ "MGMT/UNKNOWN", "MGMT/UNKNOWN", "MGMT/Beacon", "MGMT/ATIM",
++ "MGMT/Disassoc", "MGMT/Authen", "MGMT/Deauthen"
++ };
++ static const char * const ctl_arr[] = {
++ "CTL/PSPoll", "CTL/RTS", "CTL/CTS", "CTL/Ack", "CTL/CFEnd",
++ "CTL/CFEndCFAck"
++ };
++ static const char * const data_arr[] = {
++ "DATA/DataOnly", "DATA/Data CFAck", "DATA/Data CFPoll",
++ "DATA/Data CFAck/CFPoll", "DATA/Null", "DATA/CFAck",
++ "DATA/CFPoll", "DATA/CFAck/CFPoll"
++ };
++ const char *str;
++ u8 fstype = (WF_FC_FSTYPE & fc) >> 4;
++ u8 ctl;
++
++ switch (WF_FC_FTYPE & fc) {
++ case WF_FTYPE_MGMT:
++ if (fstype < VEC_SIZE(mgmt_arr))
++ str = mgmt_arr[fstype];
++ else
++ str = "MGMT/UNKNOWN";
++ break;
++ case WF_FTYPE_CTL:
++ ctl = fstype - 0x0a;
++ if (ctl < VEC_SIZE(ctl_arr))
++ str = ctl_arr[ctl];
++ else
++ str = "CTL/UNKNOWN";
++ break;
++ case WF_FTYPE_DATA:
++ if (fstype < VEC_SIZE(data_arr))
++ str = data_arr[fstype];
++ else
++ str = "DATA/UNKNOWN";
++ break;
++ default:
++ str = "UNKNOWN";
++ break;
++ }
++ return str;
++}
++#endif
++
++
++/***********************************************************************
++** acx_wlan_reason_str
++*/
++static inline const char*
++acx_wlan_reason_str(u16 reason)
++{
++ static const char* const reason_str[] = {
++ /* 0 */ "?",
++ /* 1 */ "unspecified",
++ /* 2 */ "prev auth is not valid",
++ /* 3 */ "leaving BBS",
++ /* 4 */ "due to inactivity",
++ /* 5 */ "AP is busy",
++ /* 6 */ "got class 2 frame from non-auth'ed STA",
++ /* 7 */ "got class 3 frame from non-assoc'ed STA",
++ /* 8 */ "STA has left BSS",
++ /* 9 */ "assoc without auth is not allowed",
++ /* 10 */ "bad power setting (802.11h)",
++ /* 11 */ "bad channel (802.11i)",
++ /* 12 */ "?",
++ /* 13 */ "invalid IE",
++ /* 14 */ "MIC failure",
++ /* 15 */ "four-way handshake timeout",
++ /* 16 */ "group key handshake timeout",
++ /* 17 */ "IE is different",
++ /* 18 */ "invalid group cipher",
++ /* 19 */ "invalid pairwise cipher",
++ /* 20 */ "invalid AKMP",
++ /* 21 */ "unsupported RSN version",
++ /* 22 */ "invalid RSN IE cap",
++ /* 23 */ "802.1x failed",
++ /* 24 */ "cipher suite rejected"
++ };
++ return reason < VEC_SIZE(reason_str) ? reason_str[reason] : "?";
++}
++
++
++/***********************************************************************
++** acx_cmd_status_str
++*/
++const char*
++acx_cmd_status_str(unsigned int state)
++{
++ static const char * const cmd_error_strings[] = {
++ "Idle",
++ "Success",
++ "Unknown Command",
++ "Invalid Information Element",
++ "Channel rejected",
++ "Channel invalid in current regulatory domain",
++ "MAC invalid",
++ "Command rejected (read-only information element)",
++ "Command rejected",
++ "Already asleep",
++ "TX in progress",
++ "Already awake",
++ "Write only",
++ "RX in progress",
++ "Invalid parameter",
++ "Scan in progress",
++ "Failed"
++ };
++ return state < VEC_SIZE(cmd_error_strings) ?
++ cmd_error_strings[state] : "?";
++}
++
++
++/***********************************************************************
++** get_status_string
++*/
++static inline const char*
++get_status_string(unsigned int status)
++{
++ /* A bit shortened, but hopefully still understandable */
++ static const char * const status_str[] = {
++ /* 0 */ "Successful",
++ /* 1 */ "Unspecified failure",
++ /* 2 */ "reserved",
++ /* 3 */ "reserved",
++ /* 4 */ "reserved",
++ /* 5 */ "reserved",
++ /* 6 */ "reserved",
++ /* 7 */ "reserved",
++ /* 8 */ "reserved",
++ /* 9 */ "reserved",
++ /*10 */ "Cannot support all requested capabilities in Capability Information field",
++ /*11 */ "Reassoc denied (reason outside of 802.11b scope)",
++ /*12 */ "Assoc denied (reason outside of 802.11b scope) -- maybe MAC filtering by peer?",
++ /*13 */ "Responding station doesnt support specified auth algorithm -- maybe WEP auth Open vs. Restricted?",
++ /*14 */ "Auth rejected: wrong transaction sequence number",
++ /*15 */ "Auth rejected: challenge failure",
++ /*16 */ "Auth rejected: timeout for next frame in sequence",
++ /*17 */ "Assoc denied: too many STAs on this AP",
++ /*18 */ "Assoc denied: requesting STA doesnt support all data rates in basic set",
++ /*19 */ "Assoc denied: requesting STA doesnt support Short Preamble",
++ /*20 */ "Assoc denied: requesting STA doesnt support PBCC Modulation",
++ /*21 */ "Assoc denied: requesting STA doesnt support Channel Agility"
++ /*22 */ "reserved",
++ /*23 */ "reserved",
++ /*24 */ "reserved",
++ /*25 */ "Assoc denied: requesting STA doesnt support Short Slot Time",
++ /*26 */ "Assoc denied: requesting STA doesnt support DSSS-OFDM"
++ };
++
++ return status_str[status < VEC_SIZE(status_str) ? status : 2];
++}
++
++
++/***********************************************************************
++*/
++void
++acx_log_bad_eid(wlan_hdr_t* hdr, int len, wlan_ie_t* ie_ptr)
++{
++ if (acx_debug & L_ASSOC) {
++ int offset = (u8*)ie_ptr - (u8*)hdr;
++ printk("acx: unknown EID %d in mgmt frame at offset %d. IE: ",
++ ie_ptr->eid, offset);
++ /* IE len can be bogus, IE can extend past packet end. Oh well... */
++ acx_dump_bytes(ie_ptr, ie_ptr->len + 2);
++ if (acx_debug & L_DATA) {
++ printk("frame (%s): ",
++ acx_get_packet_type_string(le16_to_cpu(hdr->fc)));
++ acx_dump_bytes(hdr, len);
++ }
++ }
++}
++
++
++/***********************************************************************
++*/
++#if ACX_DEBUG
++void
++acx_dump_bytes(const void *data, int num)
++{
++ const u8* ptr = (const u8*)data;
++
++ if (num <= 0) {
++ printk("\n");
++ return;
++ }
++
++ while (num >= 16) {
++ printk( "%02X %02X %02X %02X %02X %02X %02X %02X "
++ "%02X %02X %02X %02X %02X %02X %02X %02X\n",
++ ptr[0], ptr[1], ptr[2], ptr[3],
++ ptr[4], ptr[5], ptr[6], ptr[7],
++ ptr[8], ptr[9], ptr[10], ptr[11],
++ ptr[12], ptr[13], ptr[14], ptr[15]);
++ num -= 16;
++ ptr += 16;
++ }
++ if (num > 0) {
++ while (--num > 0)
++ printk("%02X ", *ptr++);
++ printk("%02X\n", *ptr);
++ }
++}
++#endif
++
++
++/***********************************************************************
++** acx_s_get_firmware_version
++*/
++void
++acx_s_get_firmware_version(acx_device_t *adev)
++{
++ fw_ver_t fw;
++ u8 hexarr[4] = { 0, 0, 0, 0 };
++ int hexidx = 0, val = 0;
++ const char *num;
++ char c;
++
++ FN_ENTER;
++
++ memset(fw.fw_id, 'E', FW_ID_SIZE);
++ acx_s_interrogate(adev, &fw, ACX1xx_IE_FWREV);
++ memcpy(adev->firmware_version, fw.fw_id, FW_ID_SIZE);
++ adev->firmware_version[FW_ID_SIZE] = '\0';
++
++ log(L_DEBUG, "fw_ver: fw_id='%s' hw_id=%08X\n",
++ adev->firmware_version, fw.hw_id);
++
++ if (strncmp(fw.fw_id, "Rev ", 4) != 0) {
++ printk("acx: strange firmware version string "
++ "'%s', please report\n", adev->firmware_version);
++ adev->firmware_numver = 0x01090407; /* assume 1.9.4.7 */
++ } else {
++ num = &fw.fw_id[4];
++ while (1) {
++ c = *num++;
++ if ((c == '.') || (c == '\0')) {
++ hexarr[hexidx++] = val;
++ if ((hexidx > 3) || (c == '\0')) /* end? */
++ break;
++ val = 0;
++ continue;
++ }
++ if ((c >= '0') && (c <= '9'))
++ c -= '0';
++ else
++ c = c - 'a' + (char)10;
++ val = val*16 + c;
++ }
++
++ adev->firmware_numver = (u32)(
++ (hexarr[0] << 24) | (hexarr[1] << 16)
++ | (hexarr[2] << 8) | hexarr[3]);
++ log(L_DEBUG, "firmware_numver 0x%08X\n", adev->firmware_numver);
++ }
++ if (IS_ACX111(adev)) {
++ if (adev->firmware_numver == 0x00010011) {
++ /* This one does not survive floodpinging */
++ printk("acx: firmware '%s' is known to be buggy, "
++ "please upgrade\n", adev->firmware_version);
++ }
++ }
++
++ adev->firmware_id = le32_to_cpu(fw.hw_id);
++
++ /* we're able to find out more detailed chip names now */
++ switch (adev->firmware_id & 0xffff0000) {
++ case 0x01010000:
++ case 0x01020000:
++ adev->chip_name = "TNETW1100A";
++ break;
++ case 0x01030000:
++ adev->chip_name = "TNETW1100B";
++ break;
++ case 0x03000000:
++ case 0x03010000:
++ adev->chip_name = "TNETW1130";
++ break;
++ case 0x04030000: /* 0x04030101 is TNETW1450 */
++ adev->chip_name = "TNETW1450";
++ break;
++ default:
++ printk("acx: unknown chip ID 0x%08X, "
++ "please report\n", adev->firmware_id);
++ break;
++ }
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_display_hardware_details
++**
++** Displays hw/fw version, radio type etc...
++*/
++void
++acx_display_hardware_details(acx_device_t *adev)
++{
++ const char *radio_str, *form_str;
++
++ FN_ENTER;
++
++ switch (adev->radio_type) {
++ case RADIO_MAXIM_0D:
++ radio_str = "Maxim";
++ break;
++ case RADIO_RFMD_11:
++ radio_str = "RFMD";
++ break;
++ case RADIO_RALINK_15:
++ radio_str = "Ralink";
++ break;
++ case RADIO_RADIA_16:
++ radio_str = "Radia";
++ break;
++ case RADIO_UNKNOWN_17:
++ /* TI seems to have a radio which is
++ * additionally 802.11a capable, too */
++ radio_str = "802.11a/b/g radio?! Please report";
++ break;
++ case RADIO_UNKNOWN_19:
++ radio_str = "A radio used by Safecom cards?! Please report";
++ break;
++ case RADIO_UNKNOWN_1B:
++ radio_str = "An unknown radio used by TNETW1450 USB adapters";
++ break;
++ default:
++ radio_str = "UNKNOWN, please report radio type name!";
++ break;
++ }
++
++ switch (adev->form_factor) {
++ case 0x00:
++ form_str = "unspecified";
++ break;
++ case 0x01:
++ form_str = "(mini-)PCI / CardBus";
++ break;
++ case 0x02:
++ form_str = "USB";
++ break;
++ case 0x03:
++ form_str = "Compact Flash";
++ break;
++ default:
++ form_str = "UNKNOWN, please report";
++ break;
++ }
++
++ printk("acx: === chipset %s, radio type 0x%02X (%s), "
++ "form factor 0x%02X (%s), EEPROM version 0x%02X: "
++ "uploaded firmware '%s' ===\n",
++ adev->chip_name, adev->radio_type, radio_str,
++ adev->form_factor, form_str, adev->eeprom_version,
++ adev->firmware_version);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++*/
++int
++acx_e_change_mtu(struct net_device *ndev, int mtu)
++{
++ enum {
++ MIN_MTU = 256,
++ MAX_MTU = WLAN_DATA_MAXLEN - (ETH_HLEN)
++ };
++
++ if (mtu < MIN_MTU || mtu > MAX_MTU)
++ return -EINVAL;
++
++ ndev->mtu = mtu;
++ return 0;
++}
++
++
++/***********************************************************************
++** acx_e_get_stats, acx_e_get_wireless_stats
++*/
++struct net_device_stats*
++acx_e_get_stats(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ return &adev->stats;
++}
++
++struct iw_statistics*
++acx_e_get_wireless_stats(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ return &adev->wstats;
++}
++
++
++/***********************************************************************
++** maps acx111 tx descr rate field to acx100 one
++*/
++const u8
++acx_bitpos2rate100[] = {
++ RATE100_1 ,/* 0 */
++ RATE100_2 ,/* 1 */
++ RATE100_5 ,/* 2 */
++ RATE100_2 ,/* 3, should not happen */
++ RATE100_2 ,/* 4, should not happen */
++ RATE100_11 ,/* 5 */
++ RATE100_2 ,/* 6, should not happen */
++ RATE100_2 ,/* 7, should not happen */
++ RATE100_22 ,/* 8 */
++ RATE100_2 ,/* 9, should not happen */
++ RATE100_2 ,/* 10, should not happen */
++ RATE100_2 ,/* 11, should not happen */
++ RATE100_2 ,/* 12, should not happen */
++ RATE100_2 ,/* 13, should not happen */
++ RATE100_2 ,/* 14, should not happen */
++ RATE100_2 ,/* 15, should not happen */
++};
++
++u8
++acx_rate111to100(u16 r) {
++ return acx_bitpos2rate100[highest_bit(r)];
++}
++
++
++/***********************************************************************
++** Calculate level like the feb 2003 windows driver seems to do
++*/
++static u8
++acx_signal_to_winlevel(u8 rawlevel)
++{
++ /* u8 winlevel = (u8) (0.5 + 0.625 * rawlevel); */
++ u8 winlevel = ((4 + (rawlevel * 5)) / 8);
++
++ if (winlevel > 100)
++ winlevel = 100;
++ return winlevel;
++}
++
++u8
++acx_signal_determine_quality(u8 signal, u8 noise)
++{
++ int qual;
++
++ qual = (((signal - 30) * 100 / 70) + (100 - noise * 4)) / 2;
++
++ if (qual > 100)
++ return 100;
++ if (qual < 0)
++ return 0;
++ return qual;
++}
++
++
++/***********************************************************************
++** Interrogate/configure commands
++*/
++
++/* FIXME: the lengths given here probably aren't always correct.
++ * They should be gradually replaced by proper "sizeof(acx1XX_ie_XXXX)-4",
++ * unless the firmware actually expects a different length than the struct length */
++static const u16
++acx100_ie_len[] = {
++ 0,
++ ACX100_IE_ACX_TIMER_LEN,
++ sizeof(acx100_ie_powersave_t)-4, /* is that 6 or 8??? */
++ ACX1xx_IE_QUEUE_CONFIG_LEN,
++ ACX100_IE_BLOCK_SIZE_LEN,
++ ACX1xx_IE_MEMORY_CONFIG_OPTIONS_LEN,
++ ACX1xx_IE_RATE_FALLBACK_LEN,
++ ACX100_IE_WEP_OPTIONS_LEN,
++ ACX1xx_IE_MEMORY_MAP_LEN, /* ACX1xx_IE_SSID_LEN, */
++ 0,
++ ACX1xx_IE_ASSOC_ID_LEN,
++ 0,
++ ACX111_IE_CONFIG_OPTIONS_LEN,
++ ACX1xx_IE_FWREV_LEN,
++ ACX1xx_IE_FCS_ERROR_COUNT_LEN,
++ ACX1xx_IE_MEDIUM_USAGE_LEN,
++ ACX1xx_IE_RXCONFIG_LEN,
++ 0,
++ 0,
++ sizeof(fw_stats_t)-4,
++ 0,
++ ACX1xx_IE_FEATURE_CONFIG_LEN,
++ ACX111_IE_KEY_CHOOSE_LEN,
++ ACX1FF_IE_MISC_CONFIG_TABLE_LEN,
++ ACX1FF_IE_WONE_CONFIG_LEN,
++ 0,
++ ACX1FF_IE_TID_CONFIG_LEN,
++ 0,
++ 0,
++ 0,
++ ACX1FF_IE_CALIB_ASSESSMENT_LEN,
++ ACX1FF_IE_BEACON_FILTER_OPTIONS_LEN,
++ ACX1FF_IE_LOW_RSSI_THRESH_OPT_LEN,
++ ACX1FF_IE_NOISE_HISTOGRAM_RESULTS_LEN,
++ 0,
++ ACX1FF_IE_PACKET_DETECT_THRESH_LEN,
++ ACX1FF_IE_TX_CONFIG_OPTIONS_LEN,
++ ACX1FF_IE_CCA_THRESHOLD_LEN,
++ ACX1FF_IE_EVENT_MASK_LEN,
++ ACX1FF_IE_DTIM_PERIOD_LEN,
++ 0,
++ ACX1FF_IE_ACI_CONFIG_SET_LEN,
++ 0,
++ 0,
++ 0,
++ 0,
++ 0,
++ 0,
++ ACX1FF_IE_EEPROM_VER_LEN,
++};
++
++static const u16
++acx100_ie_len_dot11[] = {
++ 0,
++ ACX1xx_IE_DOT11_STATION_ID_LEN,
++ 0,
++ ACX100_IE_DOT11_BEACON_PERIOD_LEN,
++ ACX1xx_IE_DOT11_DTIM_PERIOD_LEN,
++ ACX1xx_IE_DOT11_SHORT_RETRY_LIMIT_LEN,
++ ACX1xx_IE_DOT11_LONG_RETRY_LIMIT_LEN,
++ ACX100_IE_DOT11_WEP_DEFAULT_KEY_WRITE_LEN,
++ ACX1xx_IE_DOT11_MAX_XMIT_MSDU_LIFETIME_LEN,
++ 0,
++ ACX1xx_IE_DOT11_CURRENT_REG_DOMAIN_LEN,
++ ACX1xx_IE_DOT11_CURRENT_ANTENNA_LEN,
++ 0,
++ ACX1xx_IE_DOT11_TX_POWER_LEVEL_LEN,
++ ACX1xx_IE_DOT11_CURRENT_CCA_MODE_LEN,
++ ACX100_IE_DOT11_ED_THRESHOLD_LEN,
++ ACX1xx_IE_DOT11_WEP_DEFAULT_KEY_SET_LEN,
++ 0,
++ 0,
++ 0,
++};
++
++static const u16
++acx111_ie_len[] = {
++ 0,
++ ACX100_IE_ACX_TIMER_LEN,
++ sizeof(acx111_ie_powersave_t)-4,
++ ACX1xx_IE_QUEUE_CONFIG_LEN,
++ ACX100_IE_BLOCK_SIZE_LEN,
++ ACX1xx_IE_MEMORY_CONFIG_OPTIONS_LEN,
++ ACX1xx_IE_RATE_FALLBACK_LEN,
++ ACX100_IE_WEP_OPTIONS_LEN,
++ ACX1xx_IE_MEMORY_MAP_LEN, /* ACX1xx_IE_SSID_LEN, */
++ 0,
++ ACX1xx_IE_ASSOC_ID_LEN,
++ 0,
++ ACX111_IE_CONFIG_OPTIONS_LEN,
++ ACX1xx_IE_FWREV_LEN,
++ ACX1xx_IE_FCS_ERROR_COUNT_LEN,
++ ACX1xx_IE_MEDIUM_USAGE_LEN,
++ ACX1xx_IE_RXCONFIG_LEN,
++ 0,
++ 0,
++ sizeof(fw_stats_t)-4,
++ 0,
++ ACX1xx_IE_FEATURE_CONFIG_LEN,
++ ACX111_IE_KEY_CHOOSE_LEN,
++ ACX1FF_IE_MISC_CONFIG_TABLE_LEN,
++ ACX1FF_IE_WONE_CONFIG_LEN,
++ 0,
++ ACX1FF_IE_TID_CONFIG_LEN,
++ 0,
++ 0,
++ 0,
++ ACX1FF_IE_CALIB_ASSESSMENT_LEN,
++ ACX1FF_IE_BEACON_FILTER_OPTIONS_LEN,
++ ACX1FF_IE_LOW_RSSI_THRESH_OPT_LEN,
++ ACX1FF_IE_NOISE_HISTOGRAM_RESULTS_LEN,
++ 0,
++ ACX1FF_IE_PACKET_DETECT_THRESH_LEN,
++ ACX1FF_IE_TX_CONFIG_OPTIONS_LEN,
++ ACX1FF_IE_CCA_THRESHOLD_LEN,
++ ACX1FF_IE_EVENT_MASK_LEN,
++ ACX1FF_IE_DTIM_PERIOD_LEN,
++ 0,
++ ACX1FF_IE_ACI_CONFIG_SET_LEN,
++ 0,
++ 0,
++ 0,
++ 0,
++ 0,
++ 0,
++ ACX1FF_IE_EEPROM_VER_LEN,
++};
++
++static const u16
++acx111_ie_len_dot11[] = {
++ 0,
++ ACX1xx_IE_DOT11_STATION_ID_LEN,
++ 0,
++ ACX100_IE_DOT11_BEACON_PERIOD_LEN,
++ ACX1xx_IE_DOT11_DTIM_PERIOD_LEN,
++ ACX1xx_IE_DOT11_SHORT_RETRY_LIMIT_LEN,
++ ACX1xx_IE_DOT11_LONG_RETRY_LIMIT_LEN,
++ ACX100_IE_DOT11_WEP_DEFAULT_KEY_WRITE_LEN,
++ ACX1xx_IE_DOT11_MAX_XMIT_MSDU_LIFETIME_LEN,
++ 0,
++ ACX1xx_IE_DOT11_CURRENT_REG_DOMAIN_LEN,
++ ACX1xx_IE_DOT11_CURRENT_ANTENNA_LEN,
++ 0,
++ ACX1xx_IE_DOT11_TX_POWER_LEVEL_LEN,
++ ACX1xx_IE_DOT11_CURRENT_CCA_MODE_LEN,
++ ACX100_IE_DOT11_ED_THRESHOLD_LEN,
++ ACX1xx_IE_DOT11_WEP_DEFAULT_KEY_SET_LEN,
++ 0,
++ 0,
++ 0,
++};
++
++
++#undef FUNC
++#define FUNC "configure"
++#if !ACX_DEBUG
++int
++acx_s_configure(acx_device_t *adev, void *pdr, int type)
++{
++#else
++int
++acx_s_configure_debug(acx_device_t *adev, void *pdr, int type, const char* typestr)
++{
++#endif
++ u16 len;
++ int res;
++
++ if (type < 0x1000)
++ len = adev->ie_len[type];
++ else
++ len = adev->ie_len_dot11[type - 0x1000];
++
++ log(L_CTL, FUNC"(type:%s,len:%u)\n", typestr, len);
++ if (unlikely(!len)) {
++ log(L_DEBUG, "zero-length type %s?!\n", typestr);
++ }
++
++ ((acx_ie_generic_t *)pdr)->type = cpu_to_le16(type);
++ ((acx_ie_generic_t *)pdr)->len = cpu_to_le16(len);
++ res = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIGURE, pdr, len + 4);
++ if (unlikely(OK != res)) {
++#if ACX_DEBUG
++ printk("%s: "FUNC"(type:%s) FAILED\n", adev->ndev->name, typestr);
++#else
++ printk("%s: "FUNC"(type:0x%X) FAILED\n", adev->ndev->name, type);
++#endif
++ /* dump_stack() is already done in issue_cmd() */
++ }
++ return res;
++}
++
++#undef FUNC
++#define FUNC "interrogate"
++#if !ACX_DEBUG
++int
++acx_s_interrogate(acx_device_t *adev, void *pdr, int type)
++{
++#else
++int
++acx_s_interrogate_debug(acx_device_t *adev, void *pdr, int type,
++ const char* typestr)
++{
++#endif
++ u16 len;
++ int res;
++
++ /* FIXME: no check whether this exceeds the array yet.
++ * We should probably remember the number of entries... */
++ if (type < 0x1000)
++ len = adev->ie_len[type];
++ else
++ len = adev->ie_len_dot11[type-0x1000];
++
++ log(L_CTL, FUNC"(type:%s,len:%u)\n", typestr, len);
++
++ ((acx_ie_generic_t *)pdr)->type = cpu_to_le16(type);
++ ((acx_ie_generic_t *)pdr)->len = cpu_to_le16(len);
++ res = acx_s_issue_cmd(adev, ACX1xx_CMD_INTERROGATE, pdr, len + 4);
++ if (unlikely(OK != res)) {
++#if ACX_DEBUG
++ printk("%s: "FUNC"(type:%s) FAILED\n", adev->ndev->name, typestr);
++#else
++ printk("%s: "FUNC"(type:0x%X) FAILED\n", adev->ndev->name, type);
++#endif
++ /* dump_stack() is already done in issue_cmd() */
++ }
++ return res;
++}
++
++#if CMD_DISCOVERY
++void
++great_inquisitor(acx_device_t *adev)
++{
++ static struct {
++ u16 type;
++ u16 len;
++ /* 0x200 was too large here: */
++ u8 data[0x100 - 4];
++ } ACX_PACKED ie;
++ u16 type;
++
++ FN_ENTER;
++
++ /* 0..0x20, 0x1000..0x1020 */
++ for (type = 0; type <= 0x1020; type++) {
++ if (type == 0x21)
++ type = 0x1000;
++ ie.type = cpu_to_le16(type);
++ ie.len = cpu_to_le16(sizeof(ie) - 4);
++ acx_s_issue_cmd(adev, ACX1xx_CMD_INTERROGATE, &ie, sizeof(ie));
++ }
++ FN_EXIT0;
++}
++#endif
++
++
++#ifdef CONFIG_PROC_FS
++/***********************************************************************
++** /proc files
++*/
++/***********************************************************************
++** acx_l_proc_output
++** Generate content for our /proc entry
++**
++** Arguments:
++** buf is a pointer to write output to
++** adev is the usual pointer to our private struct acx_device
++** Returns:
++** number of bytes actually written to buf
++** Side effects:
++** none
++*/
++static int
++acx_l_proc_output(char *buf, acx_device_t *adev)
++{
++ char *p = buf;
++ int i;
++
++ FN_ENTER;
++
++ p += sprintf(p,
++ "acx driver version:\t\t" ACX_RELEASE "\n"
++ "Wireless extension version:\t" STRING(WIRELESS_EXT) "\n"
++ "chip name:\t\t\t%s (0x%08X)\n"
++ "radio type:\t\t\t0x%02X\n"
++ "form factor:\t\t\t0x%02X\n"
++ "EEPROM version:\t\t\t0x%02X\n"
++ "firmware version:\t\t%s (0x%08X)\n",
++ adev->chip_name, adev->firmware_id,
++ adev->radio_type,
++ adev->form_factor,
++ adev->eeprom_version,
++ adev->firmware_version, adev->firmware_numver);
++
++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
++ struct client *bss = &adev->sta_list[i];
++ if (!bss->used) continue;
++ p += sprintf(p, "BSS %u BSSID "MACSTR" ESSID %s channel %u "
++ "Cap 0x%X SIR %u SNR %u\n",
++ i, MAC(bss->bssid), (char*)bss->essid, bss->channel,
++ bss->cap_info, bss->sir, bss->snr);
++ }
++ p += sprintf(p, "status:\t\t\t%u (%s)\n",
++ adev->status, acx_get_status_name(adev->status));
++
++ FN_EXIT1(p - buf);
++ return p - buf;
++}
++
++
++/***********************************************************************
++*/
++static int
++acx_s_proc_diag_output(char *buf, acx_device_t *adev)
++{
++ char *p = buf;
++ unsigned long flags;
++ unsigned int len = 0, partlen;
++ u32 temp1, temp2;
++ u8 *st, *st_end;
++#ifdef __BIG_ENDIAN
++ u8 *st2;
++#endif
++ fw_stats_t *fw_stats;
++ char *part_str = NULL;
++ fw_stats_tx_t *tx = NULL;
++ fw_stats_rx_t *rx = NULL;
++ fw_stats_dma_t *dma = NULL;
++ fw_stats_irq_t *irq = NULL;
++ fw_stats_wep_t *wep = NULL;
++ fw_stats_pwr_t *pwr = NULL;
++ fw_stats_mic_t *mic = NULL;
++ fw_stats_aes_t *aes = NULL;
++ fw_stats_event_t *evt = NULL;
++
++ FN_ENTER;
++
++ acx_lock(adev, flags);
++
++#if defined (ACX_MEM)
++ p = acxmem_s_proc_diag_output(p, adev);
++#else
++ if (IS_PCI(adev))
++ p = acxpci_s_proc_diag_output(p, adev);
++#endif
++
++ p += sprintf(p,
++ "\n"
++ "** network status **\n"
++ "dev_state_mask 0x%04X\n"
++ "status %u (%s), "
++ "mode %u, channel %u, "
++ "reg_dom_id 0x%02X, reg_dom_chanmask 0x%04X, ",
++ adev->dev_state_mask,
++ adev->status, acx_get_status_name(adev->status),
++ adev->mode, adev->channel,
++ adev->reg_dom_id, adev->reg_dom_chanmask
++ );
++ p += sprintf(p,
++ "ESSID \"%s\", essid_active %d, essid_len %d, "
++ "essid_for_assoc \"%s\", nick \"%s\"\n"
++ "WEP ena %d, restricted %d, idx %d\n",
++ adev->essid, adev->essid_active, (int)adev->essid_len,
++ adev->essid_for_assoc, adev->nick,
++ adev->wep_enabled, adev->wep_restricted,
++ adev->wep_current_index);
++ p += sprintf(p, "dev_addr "MACSTR"\n", MAC(adev->dev_addr));
++ p += sprintf(p, "bssid "MACSTR"\n", MAC(adev->bssid));
++ p += sprintf(p, "ap_filter "MACSTR"\n", MAC(adev->ap));
++
++ p += sprintf(p,
++ "\n"
++ "** PHY status **\n"
++ "tx_disabled %d, tx_level_dbm %d\n" /* "tx_level_val %d, tx_level_auto %d\n" */
++ "sensitivity %d, antenna 0x%02X, ed_threshold %d, cca %d, preamble_mode %d\n"
++ "rate_basic 0x%04X, rate_oper 0x%04X\n"
++ "rts_threshold %d, frag_threshold %d, short_retry %d, long_retry %d\n"
++ "msdu_lifetime %d, listen_interval %d, beacon_interval %d\n",
++ adev->tx_disabled, adev->tx_level_dbm, /* adev->tx_level_val, adev->tx_level_auto, */
++ adev->sensitivity, adev->antenna, adev->ed_threshold, adev->cca, adev->preamble_mode,
++ adev->rate_basic, adev->rate_oper,
++ adev->rts_threshold, adev->frag_threshold, adev->short_retry, adev->long_retry,
++ adev->msdu_lifetime, adev->listen_interval, adev->beacon_interval);
++
++ acx_unlock(adev, flags);
++
++ p += sprintf(p,
++ "\n"
++ "** Firmware **\n"
++ "NOTE: version dependent statistics layout, "
++ "please report if you suspect wrong parsing!\n"
++ "\n"
++ "version \"%s\"\n", adev->firmware_version);
++
++ /* TODO: may replace kmalloc/memset with kzalloc once
++ * Linux 2.6.14 is widespread */
++ fw_stats = kmalloc(sizeof(*fw_stats), GFP_KERNEL);
++ if (!fw_stats) {
++ FN_EXIT1(0);
++ return 0;
++ }
++ memset(fw_stats, 0, sizeof(*fw_stats));
++
++ st = (u8 *)fw_stats;
++
++ part_str = "statistics query command";
++
++ if (OK != acx_s_interrogate(adev, st, ACX1xx_IE_FIRMWARE_STATISTICS))
++ goto fw_stats_end;
++
++ st += sizeof(u16);
++ len = *(u16 *)st;
++
++ if (len > sizeof(*fw_stats)) {
++ p += sprintf(p,
++ "firmware version with bigger fw_stats struct detected\n"
++ "(%u vs. %u), please report\n", len, sizeof(fw_stats_t));
++ if (len > sizeof(*fw_stats)) {
++ p += sprintf(p, "struct size exceeded allocation!\n");
++ len = sizeof(*fw_stats);
++ }
++ }
++ st += sizeof(u16);
++ st_end = st - 2*sizeof(u16) + len;
++
++#ifdef __BIG_ENDIAN
++ /* let's make one bold assumption here:
++ * (hopefully!) *all* statistics fields are u32 only,
++ * thus if we need to make endianness corrections
++ * we can simply do them in one go, in advance */
++ st2 = (u8 *)fw_stats;
++ for (temp1 = 0; temp1 < len; temp1 += 4, st2 += 4)
++ *(u32 *)st2 = le32_to_cpu(*(u32 *)st2);
++#endif
++
++ part_str = "Rx/Tx";
++
++ /* directly at end of a struct part? --> no error! */
++ if (st == st_end)
++ goto fw_stats_end;
++
++ tx = (fw_stats_tx_t *)st;
++ st += sizeof(fw_stats_tx_t);
++ rx = (fw_stats_rx_t *)st;
++ st += sizeof(fw_stats_rx_t);
++ partlen = sizeof(fw_stats_tx_t) + sizeof(fw_stats_rx_t);
++
++ if (IS_ACX100(adev)) {
++ /* at least ACX100 PCI F/W 1.9.8.b
++ * and ACX100 USB F/W 1.0.7-USB
++ * don't have those two fields... */
++ st -= 2*sizeof(u32);
++
++ /* our parsing doesn't quite match this firmware yet,
++ * log failure */
++ if (st > st_end)
++ goto fw_stats_fail;
++ temp1 = temp2 = 999999999;
++ } else {
++ if (st > st_end)
++ goto fw_stats_fail;
++ temp1 = rx->rx_aci_events;
++ temp2 = rx->rx_aci_resets;
++ }
++
++ p += sprintf(p,
++ "%s:\n"
++ " tx_desc_overfl %u\n"
++ " rx_OutOfMem %u, rx_hdr_overfl %u, rx_hw_stuck %u\n"
++ " rx_dropped_frame %u, rx_frame_ptr_err %u, rx_xfr_hint_trig %u\n"
++ " rx_aci_events %u, rx_aci_resets %u\n",
++ part_str,
++ tx->tx_desc_of,
++ rx->rx_oom,
++ rx->rx_hdr_of,
++ rx->rx_hw_stuck,
++ rx->rx_dropped_frame,
++ rx->rx_frame_ptr_err,
++ rx->rx_xfr_hint_trig,
++ temp1,
++ temp2);
++
++ part_str = "DMA";
++
++ if (st == st_end)
++ goto fw_stats_end;
++
++ dma = (fw_stats_dma_t *)st;
++ partlen = sizeof(fw_stats_dma_t);
++ st += partlen;
++
++ if (st > st_end)
++ goto fw_stats_fail;
++
++ p += sprintf(p,
++ "%s:\n"
++ " rx_dma_req %u, rx_dma_err %u, tx_dma_req %u, tx_dma_err %u\n",
++ part_str,
++ dma->rx_dma_req,
++ dma->rx_dma_err,
++ dma->tx_dma_req,
++ dma->tx_dma_err);
++
++ part_str = "IRQ";
++
++ if (st == st_end)
++ goto fw_stats_end;
++
++ irq = (fw_stats_irq_t *)st;
++ partlen = sizeof(fw_stats_irq_t);
++ st += partlen;
++
++ if (st > st_end)
++ goto fw_stats_fail;
++
++ p += sprintf(p,
++ "%s:\n"
++ " cmd_cplt %u, fiq %u\n"
++ " rx_hdrs %u, rx_cmplt %u, rx_mem_overfl %u, rx_rdys %u\n"
++ " irqs %u, tx_procs %u, decrypt_done %u\n"
++ " dma_0_done %u, dma_1_done %u, tx_exch_complet %u\n"
++ " commands %u, rx_procs %u, hw_pm_mode_changes %u\n"
++ " host_acks %u, pci_pm %u, acm_wakeups %u\n",
++ part_str,
++ irq->cmd_cplt,
++ irq->fiq,
++ irq->rx_hdrs,
++ irq->rx_cmplt,
++ irq->rx_mem_of,
++ irq->rx_rdys,
++ irq->irqs,
++ irq->tx_procs,
++ irq->decrypt_done,
++ irq->dma_0_done,
++ irq->dma_1_done,
++ irq->tx_exch_complet,
++ irq->commands,
++ irq->rx_procs,
++ irq->hw_pm_mode_changes,
++ irq->host_acks,
++ irq->pci_pm,
++ irq->acm_wakeups);
++
++ part_str = "WEP";
++
++ if (st == st_end)
++ goto fw_stats_end;
++
++ wep = (fw_stats_wep_t *)st;
++ partlen = sizeof(fw_stats_wep_t);
++ st += partlen;
++
++ if (
++ (IS_PCI(adev) && IS_ACX100(adev))
++ || (IS_USB(adev) && IS_ACX100(adev))
++ || (IS_MEM(adev) && IS_ACX100(adev))
++ ) {
++ /* at least ACX100 PCI F/W 1.9.8.b,
++ * ACX100 USB F/W 1.0.7-USB
++ * and ACX100 Generic Slave F/W 1.10.7.K
++ * don't have those two fields...
++ */
++ st -= 2*sizeof(u32);
++ if (st > st_end)
++ goto fw_stats_fail;
++ temp1 = temp2 = 999999999;
++ } else {
++ if (st > st_end)
++ goto fw_stats_fail;
++ temp1 = wep->wep_pkt_decrypt;
++ temp2 = wep->wep_decrypt_irqs;
++ }
++
++ p += sprintf(p,
++ "%s:\n"
++ " wep_key_count %u, wep_default_key_count %u, dot11_def_key_mib %u\n"
++ " wep_key_not_found %u, wep_decrypt_fail %u\n"
++ " wep_pkt_decrypt %u, wep_decrypt_irqs %u\n",
++ part_str,
++ wep->wep_key_count,
++ wep->wep_default_key_count,
++ wep->dot11_def_key_mib,
++ wep->wep_key_not_found,
++ wep->wep_decrypt_fail,
++ temp1,
++ temp2);
++
++ part_str = "power";
++
++ if (st == st_end)
++ goto fw_stats_end;
++
++ pwr = (fw_stats_pwr_t *)st;
++ partlen = sizeof(fw_stats_pwr_t);
++ st += partlen;
++
++ if (st > st_end)
++ goto fw_stats_fail;
++
++ p += sprintf(p,
++ "%s:\n"
++ " tx_start_ctr %u, no_ps_tx_too_short %u\n"
++ " rx_start_ctr %u, no_ps_rx_too_short %u\n"
++ " lppd_started %u\n"
++ " no_lppd_too_noisy %u, no_lppd_too_short %u, no_lppd_matching_frame %u\n",
++ part_str,
++ pwr->tx_start_ctr,
++ pwr->no_ps_tx_too_short,
++ pwr->rx_start_ctr,
++ pwr->no_ps_rx_too_short,
++ pwr->lppd_started,
++ pwr->no_lppd_too_noisy,
++ pwr->no_lppd_too_short,
++ pwr->no_lppd_matching_frame);
++
++ part_str = "MIC";
++
++ if (st == st_end)
++ goto fw_stats_end;
++
++ mic = (fw_stats_mic_t *)st;
++ partlen = sizeof(fw_stats_mic_t);
++ st += partlen;
++
++ if (st > st_end)
++ goto fw_stats_fail;
++
++ p += sprintf(p,
++ "%s:\n"
++ " mic_rx_pkts %u, mic_calc_fail %u\n",
++ part_str,
++ mic->mic_rx_pkts,
++ mic->mic_calc_fail);
++
++ part_str = "AES";
++
++ if (st == st_end)
++ goto fw_stats_end;
++
++ aes = (fw_stats_aes_t *)st;
++ partlen = sizeof(fw_stats_aes_t);
++ st += partlen;
++
++ if (st > st_end)
++ goto fw_stats_fail;
++
++ p += sprintf(p,
++ "%s:\n"
++ " aes_enc_fail %u, aes_dec_fail %u\n"
++ " aes_enc_pkts %u, aes_dec_pkts %u\n"
++ " aes_enc_irq %u, aes_dec_irq %u\n",
++ part_str,
++ aes->aes_enc_fail,
++ aes->aes_dec_fail,
++ aes->aes_enc_pkts,
++ aes->aes_dec_pkts,
++ aes->aes_enc_irq,
++ aes->aes_dec_irq);
++
++ part_str = "event";
++
++ if (st == st_end)
++ goto fw_stats_end;
++
++ evt = (fw_stats_event_t *)st;
++ partlen = sizeof(fw_stats_event_t);
++ st += partlen;
++
++ if (st > st_end)
++ goto fw_stats_fail;
++
++ p += sprintf(p,
++ "%s:\n"
++ " heartbeat %u, calibration %u\n"
++ " rx_mismatch %u, rx_mem_empty %u, rx_pool %u\n"
++ " oom_late %u\n"
++ " phy_tx_err %u, tx_stuck %u\n",
++ part_str,
++ evt->heartbeat,
++ evt->calibration,
++ evt->rx_mismatch,
++ evt->rx_mem_empty,
++ evt->rx_pool,
++ evt->oom_late,
++ evt->phy_tx_err,
++ evt->tx_stuck);
++
++ if (st < st_end)
++ goto fw_stats_bigger;
++
++ goto fw_stats_end;
++
++fw_stats_fail:
++ st -= partlen;
++ p += sprintf(p,
++ "failed at %s part (size %u), offset %u (struct size %u), "
++ "please report\n", part_str, partlen,
++ (int)st - (int)fw_stats, len);
++
++fw_stats_bigger:
++ for (; st < st_end; st += 4)
++ p += sprintf(p,
++ "UNKN%3d: %u\n", (int)st - (int)fw_stats, *(u32 *)st);
++
++fw_stats_end:
++ kfree(fw_stats);
++
++ FN_EXIT1(p - buf);
++ return p - buf;
++}
++
++
++/***********************************************************************
++*/
++static int
++acx_s_proc_phy_output(char *buf, acx_device_t *adev)
++{
++ char *p = buf;
++ int i;
++
++ FN_ENTER;
++
++ /*
++ if (RADIO_RFMD_11 != adev->radio_type) {
++ printk("sorry, not yet adapted for radio types "
++ "other than RFMD, please verify "
++ "PHY size etc. first!\n");
++ goto end;
++ }
++ */
++
++ /* The PHY area is only 0x80 bytes long; further pages after that
++ * only have some page number registers with altered value,
++ * all other registers remain the same. */
++ for (i = 0; i < 0x80; i++) {
++ acx_s_read_phy_reg(adev, i, p++);
++ }
++
++ FN_EXIT1(p - buf);
++ return p - buf;
++}
++
++
++/***********************************************************************
++** acx_e_read_proc_XXXX
++** Handle our /proc entry
++**
++** Arguments:
++** standard kernel read_proc interface
++** Returns:
++** number of bytes written to buf
++** Side effects:
++** none
++*/
++static int
++acx_e_read_proc(char *buf, char **start, off_t offset, int count,
++ int *eof, void *data)
++{
++ acx_device_t *adev = (acx_device_t*)data;
++ unsigned long flags;
++ int length;
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++ acx_lock(adev, flags);
++ /* fill buf */
++ length = acx_l_proc_output(buf, adev);
++ acx_unlock(adev, flags);
++ acx_sem_unlock(adev);
++
++ /* housekeeping */
++ if (length <= offset + count)
++ *eof = 1;
++ *start = buf + offset;
++ length -= offset;
++ if (length > count)
++ length = count;
++ if (length < 0)
++ length = 0;
++ FN_EXIT1(length);
++ return length;
++}
++
++static char _buf[32768];
++static int
++acx_e_read_proc_diag(char *buf, char **start, off_t offset, int count,
++ int *eof, void *data)
++{
++ acx_device_t *adev = (acx_device_t*)data;
++ int length;
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++ /* fill buf */
++ length = acx_s_proc_diag_output(_buf, adev);
++ acx_sem_unlock(adev);
++
++ memcpy(buf, _buf + offset, count);
++
++ /* housekeeping */
++ if (length <= offset + count)
++ *eof = 1;
++ *start = count;
++ length -= offset;
++ if (length > count)
++ length = count;
++ if (length < 0)
++ length = 0;
++ FN_EXIT1(length);
++ return length;
++}
++
++static int
++acx_e_read_proc_eeprom(char *buf, char **start, off_t offset, int count,
++ int *eof, void *data)
++{
++ acx_device_t *adev = (acx_device_t*)data;
++ int length;
++
++ FN_ENTER;
++
++ /* fill buf */
++ length = 0;
++#if defined (ACX_MEM)
++ acx_sem_lock(adev);
++ length = acxmem_proc_eeprom_output(buf, adev);
++ acx_sem_unlock(adev);
++#else
++ if (IS_PCI(adev)) {
++ acx_sem_lock(adev);
++ length = acxpci_proc_eeprom_output(buf, adev);
++ acx_sem_unlock(adev);
++ }
++#endif
++
++ /* housekeeping */
++ if (length <= offset + count)
++ *eof = 1;
++ *start = buf + offset;
++ length -= offset;
++ if (length > count)
++ length = count;
++ if (length < 0)
++ length = 0;
++ FN_EXIT1(length);
++ return length;
++}
++
++static int
++acx_e_read_proc_phy(char *buf, char **start, off_t offset, int count,
++ int *eof, void *data)
++{
++ acx_device_t *adev = (acx_device_t*)data;
++ int length;
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++ /* fill buf */
++ length = acx_s_proc_phy_output(buf, adev);
++ acx_sem_unlock(adev);
++
++ /* housekeeping */
++ if (length <= offset + count)
++ *eof = 1;
++ *start = buf + offset;
++ length -= offset;
++ if (length > count)
++ length = count;
++ if (length < 0)
++ length = 0;
++ FN_EXIT1(length);
++ return length;
++}
++
++
++/***********************************************************************
++** /proc files registration
++*/
++static const char * const
++proc_files[] = { "", "_diag", "_eeprom", "_phy" };
++
++static read_proc_t * const
++proc_funcs[] = {
++ acx_e_read_proc,
++ acx_e_read_proc_diag,
++ acx_e_read_proc_eeprom,
++ acx_e_read_proc_phy
++};
++
++static int
++manage_proc_entries(const struct net_device *ndev, int remove)
++{
++ acx_device_t *adev = ndev2adev((struct net_device *)ndev);
++ char procbuf[80];
++ int i;
++
++ for (i = 0; i < VEC_SIZE(proc_files); i++) {
++ snprintf(procbuf, sizeof(procbuf),
++ "driver/acx_%s%s", ndev->name, proc_files[i]);
++ log(L_INIT, "%sing /proc entry %s\n",
++ remove ? "remov" : "creat", procbuf);
++ if (!remove) {
++ if (!create_proc_read_entry(procbuf, 0, 0, proc_funcs[i], adev)) {
++ printk("acx: cannot register /proc entry %s\n", procbuf);
++ return NOT_OK;
++ }
++ } else {
++ remove_proc_entry(procbuf, NULL);
++ }
++ }
++ return OK;
++}
++
++int
++acx_proc_register_entries(const struct net_device *ndev)
++{
++ return manage_proc_entries(ndev, 0);
++}
++
++int
++acx_proc_unregister_entries(const struct net_device *ndev)
++{
++ return manage_proc_entries(ndev, 1);
++}
++#endif /* CONFIG_PROC_FS */
++
++
++/***********************************************************************
++** acx_cmd_join_bssid
++**
++** Common code for both acx100 and acx111.
++*/
++/* NB: does NOT match RATE100_nn but matches ACX[111]_SCAN_RATE_n */
++static const u8
++bitpos2genframe_txrate[] = {
++ 10, /* 0. 1 Mbit/s */
++ 20, /* 1. 2 Mbit/s */
++ 55, /* 2. 5.5 Mbit/s */
++ 0x0B, /* 3. 6 Mbit/s */
++ 0x0F, /* 4. 9 Mbit/s */
++ 110, /* 5. 11 Mbit/s */
++ 0x0A, /* 6. 12 Mbit/s */
++ 0x0E, /* 7. 18 Mbit/s */
++ 220, /* 8. 22 Mbit/s */
++ 0x09, /* 9. 24 Mbit/s */
++ 0x0D, /* 10. 36 Mbit/s */
++ 0x08, /* 11. 48 Mbit/s */
++ 0x0C, /* 12. 54 Mbit/s */
++ 10, /* 13. 1 Mbit/s, should never happen */
++ 10, /* 14. 1 Mbit/s, should never happen */
++ 10, /* 15. 1 Mbit/s, should never happen */
++};
++
++/* Looks scary, eh?
++** Actually, each one compiled into one AND and one SHIFT,
++** 31 bytes in x86 asm (more if uints are replaced by u16/u8) */
++static inline unsigned int
++rate111to5bits(unsigned int rate)
++{
++ return (rate & 0x7)
++ | ( (rate & RATE111_11) / (RATE111_11/JOINBSS_RATES_11) )
++ | ( (rate & RATE111_22) / (RATE111_22/JOINBSS_RATES_22) )
++ ;
++}
++
++static void
++acx_s_cmd_join_bssid(acx_device_t *adev, const u8 *bssid)
++{
++ acx_joinbss_t tmp;
++ int dtim_interval;
++ int i;
++
++ if (mac_is_zero(bssid))
++ return;
++
++ FN_ENTER;
++
++ dtim_interval = (ACX_MODE_0_ADHOC == adev->mode) ?
++ 1 : adev->dtim_interval;
++
++ memset(&tmp, 0, sizeof(tmp));
++
++ for (i = 0; i < ETH_ALEN; i++) {
++ tmp.bssid[i] = bssid[ETH_ALEN-1 - i];
++ }
++
++ tmp.beacon_interval = cpu_to_le16(adev->beacon_interval);
++
++ /* Basic rate set. Control frame responses (such as ACK or CTS frames)
++ ** are sent with one of these rates */
++ if (IS_ACX111(adev)) {
++ /* It was experimentally determined that rates_basic
++ ** can take 11g rates as well, not only rates
++ ** defined with JOINBSS_RATES_BASIC111_nnn.
++ ** Just use RATE111_nnn constants... */
++ tmp.u.acx111.dtim_interval = dtim_interval;
++ tmp.u.acx111.rates_basic = cpu_to_le16(adev->rate_basic);
++ log(L_ASSOC, "rates_basic:%04X, rates_supported:%04X\n",
++ adev->rate_basic, adev->rate_oper);
++ } else {
++ tmp.u.acx100.dtim_interval = dtim_interval;
++ tmp.u.acx100.rates_basic = rate111to5bits(adev->rate_basic);
++ tmp.u.acx100.rates_supported = rate111to5bits(adev->rate_oper);
++ log(L_ASSOC, "rates_basic:%04X->%02X, "
++ "rates_supported:%04X->%02X\n",
++ adev->rate_basic, tmp.u.acx100.rates_basic,
++ adev->rate_oper, tmp.u.acx100.rates_supported);
++ }
++
++ /* Setting up how Beacon, Probe Response, RTS, and PS-Poll frames
++ ** will be sent (rate/modulation/preamble) */
++ tmp.u.txrate.genfrm_txrate = bitpos2genframe_txrate[lowest_bit(adev->rate_basic)];
++ tmp.genfrm_mod_pre = 0; /* FIXME: was = adev->capab_short (which was always 0); */
++ /* we can use short pre *if* all peers can understand it */
++ /* FIXME #2: we need to correctly set PBCC/OFDM bits here too */
++
++ /* we switch fw to STA mode in MONITOR mode, it seems to be
++ ** the only mode where fw does not emit beacons by itself
++ ** but allows us to send anything (we really want to retain
++ ** ability to tx arbitrary frames in MONITOR mode)
++ */
++ tmp.macmode = (adev->mode != ACX_MODE_MONITOR ? adev->mode : ACX_MODE_2_STA);
++ tmp.channel = adev->channel;
++ tmp.essid_len = adev->essid_len;
++ /* NOTE: the code memcpy'd essid_len + 1 before, which is WRONG! */
++ memcpy(tmp.essid, adev->essid, tmp.essid_len);
++ acx_s_issue_cmd(adev, ACX1xx_CMD_JOIN, &tmp, tmp.essid_len + 0x11);
++
++ log(L_ASSOC|L_DEBUG, "BSS_Type = %u\n", tmp.macmode);
++ acxlog_mac(L_ASSOC|L_DEBUG, "JoinBSSID MAC:", adev->bssid, "\n");
++
++ acx_update_capabilities(adev);
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_s_cmd_start_scan
++**
++** Issue scan command to the hardware
++**
++** unified function for both ACX111 and ACX100
++*/
++static void
++acx_s_scan_chan(acx_device_t *adev)
++{
++ union {
++ acx111_scan_t acx111;
++ acx100_scan_t acx100;
++ } s;
++
++ FN_ENTER;
++
++ memset(&s, 0, sizeof(s));
++
++ /* first common positions... */
++
++ s.acx111.count = cpu_to_le16(adev->scan_count);
++ s.acx111.rate = adev->scan_rate;
++ s.acx111.options = adev->scan_mode;
++ s.acx111.chan_duration = cpu_to_le16(adev->scan_duration);
++ s.acx111.max_probe_delay = cpu_to_le16(adev->scan_probe_delay);
++
++ /* ...then differences */
++
++ if (IS_ACX111(adev)) {
++ s.acx111.channel_list_select = 0; /* scan every allowed channel */
++ /*s.acx111.channel_list_select = 1;*/ /* scan given channels */
++ /*s.acx111.modulation = 0x40;*/ /* long preamble? OFDM? -> only for active scan */
++ s.acx111.modulation = 0;
++ /*s.acx111.channel_list[0] = 6;
++ s.acx111.channel_list[1] = 4;*/
++ } else {
++ s.acx100.start_chan = cpu_to_le16(1);
++ s.acx100.flags = cpu_to_le16(0x8000);
++ }
++
++ acx_s_issue_cmd(adev, ACX1xx_CMD_SCAN, &s, sizeof(s));
++ FN_EXIT0;
++}
++
++
++void
++acx_s_cmd_start_scan(acx_device_t *adev)
++{
++ /* time_before check is 'just in case' thing */
++ if (!(adev->irq_status & HOST_INT_SCAN_COMPLETE)
++ && time_before(jiffies, adev->scan_start + 10*HZ)
++ ) {
++ log(L_INIT, "start_scan: seems like previous scan "
++ "is still running. Not starting anew. Please report\n");
++ return;
++ }
++
++ log(L_INIT, "starting radio scan\n");
++ /* remember that fw is commanded to do scan */
++ adev->scan_start = jiffies;
++ CLEAR_BIT(adev->irq_status, HOST_INT_SCAN_COMPLETE);
++ /* issue it */
++ acx_s_scan_chan(adev);
++}
++
++
++/***********************************************************************
++** acx111 feature config
++*/
++static int
++acx111_s_get_feature_config(acx_device_t *adev,
++ u32 *feature_options, u32 *data_flow_options)
++{
++ struct acx111_ie_feature_config feat;
++
++ if (!IS_ACX111(adev)) {
++ return NOT_OK;
++ }
++
++ memset(&feat, 0, sizeof(feat));
++
++ if (OK != acx_s_interrogate(adev, &feat, ACX1xx_IE_FEATURE_CONFIG)) {
++ return NOT_OK;
++ }
++ log(L_DEBUG,
++ "got Feature option:0x%X, DataFlow option: 0x%X\n",
++ feat.feature_options,
++ feat.data_flow_options);
++
++ if (feature_options)
++ *feature_options = le32_to_cpu(feat.feature_options);
++ if (data_flow_options)
++ *data_flow_options = le32_to_cpu(feat.data_flow_options);
++
++ return OK;
++}
++
++static int
++acx111_s_set_feature_config(acx_device_t *adev,
++ u32 feature_options, u32 data_flow_options,
++ unsigned int mode /* 0 == remove, 1 == add, 2 == set */)
++{
++ struct acx111_ie_feature_config feat;
++
++ if (!IS_ACX111(adev)) {
++ return NOT_OK;
++ }
++
++ if ((mode < 0) || (mode > 2))
++ return NOT_OK;
++
++ if (mode != 2)
++ /* need to modify old data */
++ acx111_s_get_feature_config(adev, &feat.feature_options, &feat.data_flow_options);
++ else {
++ /* need to set a completely new value */
++ feat.feature_options = 0;
++ feat.data_flow_options = 0;
++ }
++
++ if (mode == 0) { /* remove */
++ CLEAR_BIT(feat.feature_options, cpu_to_le32(feature_options));
++ CLEAR_BIT(feat.data_flow_options, cpu_to_le32(data_flow_options));
++ } else { /* add or set */
++ SET_BIT(feat.feature_options, cpu_to_le32(feature_options));
++ SET_BIT(feat.data_flow_options, cpu_to_le32(data_flow_options));
++ }
++
++ log(L_DEBUG,
++ "old: feature 0x%08X dataflow 0x%08X. mode: %u\n"
++ "new: feature 0x%08X dataflow 0x%08X\n",
++ feature_options, data_flow_options, mode,
++ le32_to_cpu(feat.feature_options),
++ le32_to_cpu(feat.data_flow_options));
++
++ if (OK != acx_s_configure(adev, &feat, ACX1xx_IE_FEATURE_CONFIG)) {
++ return NOT_OK;
++ }
++
++ return OK;
++}
++
++static inline int
++acx111_s_feature_off(acx_device_t *adev, u32 f, u32 d)
++{
++ return acx111_s_set_feature_config(adev, f, d, 0);
++}
++static inline int
++acx111_s_feature_on(acx_device_t *adev, u32 f, u32 d)
++{
++ return acx111_s_set_feature_config(adev, f, d, 1);
++}
++static inline int
++acx111_s_feature_set(acx_device_t *adev, u32 f, u32 d)
++{
++ return acx111_s_set_feature_config(adev, f, d, 2);
++}
++
++
++/***********************************************************************
++** acx100_s_init_memory_pools
++*/
++static int
++acx100_s_init_memory_pools(acx_device_t *adev, const acx_ie_memmap_t *mmt)
++{
++ acx100_ie_memblocksize_t MemoryBlockSize;
++ acx100_ie_memconfigoption_t MemoryConfigOption;
++ int TotalMemoryBlocks;
++ int RxBlockNum;
++ int TotalRxBlockSize;
++ int TxBlockNum;
++ int TotalTxBlockSize;
++
++ FN_ENTER;
++
++ /* Let's see if we can follow this:
++ first we select our memory block size (which I think is
++ completely arbitrary) */
++ MemoryBlockSize.size = cpu_to_le16(adev->memblocksize);
++
++ /* Then we alert the card to our decision of block size */
++ if (OK != acx_s_configure(adev, &MemoryBlockSize, ACX100_IE_BLOCK_SIZE)) {
++ goto bad;
++ }
++
++ /* We figure out how many total blocks we can create, using
++ the block size we chose, and the beginning and ending
++ memory pointers, i.e.: end-start/size */
++ TotalMemoryBlocks = (le32_to_cpu(mmt->PoolEnd) - le32_to_cpu(mmt->PoolStart)) / adev->memblocksize;
++
++ log(L_DEBUG, "TotalMemoryBlocks=%u (%u bytes)\n",
++ TotalMemoryBlocks, TotalMemoryBlocks*adev->memblocksize);
++
++ /* MemoryConfigOption.DMA_config bitmask:
++ access to ACX memory is to be done:
++ 0x00080000 using PCI conf space?!
++ 0x00040000 using IO instructions?
++ 0x00000000 using memory access instructions
++ 0x00020000 using local memory block linked list (else what?)
++ 0x00010000 using host indirect descriptors (else host must access ACX memory?)
++ */
++#if defined (ACX_MEM)
++ /*
++ * ACX ignores DMA_config for generic slave mode.
++ */
++ MemoryConfigOption.DMA_config = 0;
++ /* Declare start of the Rx host pool */
++ MemoryConfigOption.pRxHostDesc = cpu2acx(0);
++ log(L_DEBUG, "pRxHostDesc 0x%08X, rxhostdesc_startphy 0x%lX\n",
++ acx2cpu(MemoryConfigOption.pRxHostDesc),
++ (long)adev->rxhostdesc_startphy);
++#else
++ if (IS_PCI(adev)) {
++ MemoryConfigOption.DMA_config = cpu_to_le32(0x30000);
++ /* Declare start of the Rx host pool */
++ MemoryConfigOption.pRxHostDesc = cpu2acx(adev->rxhostdesc_startphy);
++ log(L_DEBUG, "pRxHostDesc 0x%08X, rxhostdesc_startphy 0x%lX\n",
++ acx2cpu(MemoryConfigOption.pRxHostDesc),
++ (long)adev->rxhostdesc_startphy);
++ } else {
++ MemoryConfigOption.DMA_config = cpu_to_le32(0x20000);
++ }
++#endif
++
++ /* 50% of the allotment of memory blocks go to tx descriptors */
++ TxBlockNum = TotalMemoryBlocks / 2;
++ MemoryConfigOption.TxBlockNum = cpu_to_le16(TxBlockNum);
++
++ /* and 50% go to the rx descriptors */
++ RxBlockNum = TotalMemoryBlocks - TxBlockNum;
++ MemoryConfigOption.RxBlockNum = cpu_to_le16(RxBlockNum);
++
++ /* size of the tx and rx descriptor queues */
++ TotalTxBlockSize = TxBlockNum * adev->memblocksize;
++ TotalRxBlockSize = RxBlockNum * adev->memblocksize;
++ log(L_DEBUG, "TxBlockNum %u RxBlockNum %u TotalTxBlockSize %u "
++ "TotalTxBlockSize %u\n", TxBlockNum, RxBlockNum,
++ TotalTxBlockSize, TotalRxBlockSize);
++
++
++ /* align the tx descriptor queue to an alignment of 0x20 (32 bytes) */
++ MemoryConfigOption.rx_mem =
++ cpu_to_le32((le32_to_cpu(mmt->PoolStart) + 0x1f) & ~0x1f);
++
++ /* align the rx descriptor queue to units of 0x20
++ * and offset it by the tx descriptor queue */
++ MemoryConfigOption.tx_mem =
++ cpu_to_le32((le32_to_cpu(mmt->PoolStart) + TotalRxBlockSize + 0x1f) & ~0x1f);
++ log(L_DEBUG, "rx_mem %08X rx_mem %08X\n",
++ MemoryConfigOption.tx_mem, MemoryConfigOption.rx_mem);
++
++ /* alert the device to our decision */
++ if (OK != acx_s_configure(adev, &MemoryConfigOption, ACX1xx_IE_MEMORY_CONFIG_OPTIONS)) {
++ goto bad;
++ }
++
++ /* and tell the device to kick it into gear */
++ if (OK != acx_s_issue_cmd(adev, ACX100_CMD_INIT_MEMORY, NULL, 0)) {
++ goto bad;
++ }
++#ifdef ACX_MEM
++ /*
++ * slave memory interface has to manage the transmit pools for the ACX,
++ * so it needs to know what we chose here.
++ */
++ adev->acx_txbuf_start = MemoryConfigOption.tx_mem;
++ adev->acx_txbuf_numblocks = MemoryConfigOption.TxBlockNum;
++#endif
++
++ FN_EXIT1(OK);
++ return OK;
++bad:
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***********************************************************************
++** acx100_s_create_dma_regions
++**
++** Note that this fn messes up heavily with hardware, but we cannot
++** lock it (we need to sleep). Not a problem since IRQs can't happen
++*/
++static int
++acx100_s_create_dma_regions(acx_device_t *adev)
++{
++ acx100_ie_queueconfig_t queueconf;
++ acx_ie_memmap_t memmap;
++ int res = NOT_OK;
++ u32 tx_queue_start, rx_queue_start;
++
++ FN_ENTER;
++
++ /* read out the acx100 physical start address for the queues */
++ if (OK != acx_s_interrogate(adev, &memmap, ACX1xx_IE_MEMORY_MAP)) {
++ goto fail;
++ }
++
++ tx_queue_start = le32_to_cpu(memmap.QueueStart);
++ rx_queue_start = tx_queue_start + TX_CNT * sizeof(txdesc_t);
++
++ log(L_DEBUG, "initializing Queue Indicator\n");
++
++ memset(&queueconf, 0, sizeof(queueconf));
++
++ /* Not needed for PCI or slave memory, so we can avoid setting them altogether */
++ if (IS_USB(adev)) {
++ queueconf.NumTxDesc = USB_TX_CNT;
++ queueconf.NumRxDesc = USB_RX_CNT;
++ }
++
++ /* calculate size of queues */
++ queueconf.AreaSize = cpu_to_le32(
++ TX_CNT * sizeof(txdesc_t) +
++ RX_CNT * sizeof(rxdesc_t) + 8
++ );
++ queueconf.NumTxQueues = 1; /* number of tx queues */
++ /* sets the beginning of the tx descriptor queue */
++ queueconf.TxQueueStart = memmap.QueueStart;
++ /* done by memset: queueconf.TxQueuePri = 0; */
++ queueconf.RxQueueStart = cpu_to_le32(rx_queue_start);
++ queueconf.QueueOptions = 1; /* auto reset descriptor */
++ /* sets the end of the rx descriptor queue */
++ queueconf.QueueEnd = cpu_to_le32(
++ rx_queue_start + RX_CNT * sizeof(rxdesc_t)
++ );
++ /* sets the beginning of the next queue */
++ queueconf.HostQueueEnd = cpu_to_le32(le32_to_cpu(queueconf.QueueEnd) + 8);
++ if (OK != acx_s_configure(adev, &queueconf, ACX1xx_IE_QUEUE_CONFIG)) {
++ goto fail;
++ }
++
++#if defined (ACX_MEM)
++ /* sets the beginning of the rx descriptor queue, after the tx descrs */
++ adev->acx_queue_indicator =
++ (queueindicator_t *) le32_to_cpu (queueconf.QueueEnd);
++ if (OK != acxmem_s_create_hostdesc_queues(adev))
++ goto fail;
++
++ acxmem_create_desc_queues(adev, tx_queue_start, rx_queue_start);
++#else
++ if (IS_PCI(adev)) {
++ /* sets the beginning of the rx descriptor queue, after the tx descrs */
++ if (OK != acxpci_s_create_hostdesc_queues(adev))
++ goto fail;
++ acxpci_create_desc_queues(adev, tx_queue_start, rx_queue_start);
++ }
++#endif
++
++ if (OK != acx_s_interrogate(adev, &memmap, ACX1xx_IE_MEMORY_MAP)) {
++ goto fail;
++ }
++
++ /*
++ * Have to make sure we skip past the Queue Indicator (QueueEnd) and Host Queue Indicator
++ * maps, each of which are 8 bytes and follow immediately after the transmit and
++ * receive queues.
++ */
++ memmap.PoolStart = cpu_to_le32(
++ (le32_to_cpu(memmap.QueueEnd) + 4 + 0x1f) & ~0x1f
++ );
++
++ if (OK != acx_s_configure(adev, &memmap, ACX1xx_IE_MEMORY_MAP)) {
++ goto fail;
++ }
++
++ if (OK != acx100_s_init_memory_pools(adev, &memmap)) {
++ goto fail;
++ }
++
++ res = OK;
++ goto end;
++
++fail:
++ acx_s_msleep(1000); /* ? */
++#if defined (ACX_MEM)
++ acxmem_free_desc_queues(adev);
++#else
++ if (IS_PCI(adev))
++ acxpci_free_desc_queues(adev);
++#endif
++end:
++ FN_EXIT1(res);
++ return res;
++}
++
++
++/***********************************************************************
++** acx111_s_create_dma_regions
++**
++** Note that this fn messes heavily with hardware, but we cannot
++** lock it (we need to sleep). Not a problem since IRQs can't happen
++*/
++#define ACX111_PERCENT(percent) ((percent)/5)
++
++static int
++acx111_s_create_dma_regions(acx_device_t *adev)
++{
++ struct acx111_ie_memoryconfig memconf;
++ struct acx111_ie_queueconfig queueconf;
++ u32 tx_queue_start, rx_queue_start;
++
++ FN_ENTER;
++
++ /* Calculate memory positions and queue sizes */
++
++ /* Set up our host descriptor pool + data pool */
++#if defined (ACX_MEM)
++ if (OK != acxmem_s_create_hostdesc_queues(adev))
++ goto fail;
++#else
++ if (IS_PCI(adev)) {
++ if (OK != acxpci_s_create_hostdesc_queues(adev))
++ goto fail;
++ }
++#endif
++
++ memset(&memconf, 0, sizeof(memconf));
++ /* the number of STAs (STA contexts) to support
++ ** NB: was set to 1 and everything seemed to work nevertheless... */
++ memconf.no_of_stations = cpu_to_le16(VEC_SIZE(adev->sta_list));
++ /* specify the memory block size. Default is 256 */
++ memconf.memory_block_size = cpu_to_le16(adev->memblocksize);
++ /* let's use 50%/50% for tx/rx (specify percentage, units of 5%) */
++ memconf.tx_rx_memory_block_allocation = ACX111_PERCENT(50);
++ /* set the count of our queues
++ ** NB: struct acx111_ie_memoryconfig shall be modified
++ ** if we ever will switch to more than one rx and/or tx queue */
++ memconf.count_rx_queues = 1;
++ memconf.count_tx_queues = 1;
++ /* 0 == Busmaster Indirect Memory Organization, which is what we want
++ * (using linked host descs with their allocated mem).
++ * 2 == Generic Bus Slave */
++ /* done by memset: memconf.options = 0; */
++ /* let's use 25% for fragmentations and 75% for frame transfers
++ * (specified in units of 5%) */
++ memconf.fragmentation = ACX111_PERCENT(75);
++ /* Rx descriptor queue config */
++ memconf.rx_queue1_count_descs = RX_CNT;
++ memconf.rx_queue1_type = 7; /* must be set to 7 */
++ /* done by memset: memconf.rx_queue1_prio = 0; low prio */
++#if defined (ACX_MEM)
++ memconf.rx_queue1_host_rx_start = cpu2acx(adev->rxhostdesc_startphy);
++#else
++ if (IS_PCI(adev)) {
++ memconf.rx_queue1_host_rx_start = cpu2acx(adev->rxhostdesc_startphy);
++ }
++#endif
++ /* Tx descriptor queue config */
++ memconf.tx_queue1_count_descs = TX_CNT;
++ /* done by memset: memconf.tx_queue1_attributes = 0; lowest priority */
++
++ /* NB1: this looks wrong: (memconf,ACX1xx_IE_QUEUE_CONFIG),
++ ** (queueconf,ACX1xx_IE_MEMORY_CONFIG_OPTIONS) look swapped, eh?
++ ** But it is actually correct wrt IE numbers.
++ ** NB2: sizeof(memconf) == 28 == 0x1c but configure(ACX1xx_IE_QUEUE_CONFIG)
++ ** writes 0x20 bytes (because same IE for acx100 uses struct acx100_ie_queueconfig
++ ** which is 4 bytes larger. what a mess. TODO: clean it up) */
++ if (OK != acx_s_configure(adev, &memconf, ACX1xx_IE_QUEUE_CONFIG)) {
++ goto fail;
++ }
++
++ acx_s_interrogate(adev, &queueconf, ACX1xx_IE_MEMORY_CONFIG_OPTIONS);
++
++ tx_queue_start = le32_to_cpu(queueconf.tx1_queue_address);
++ rx_queue_start = le32_to_cpu(queueconf.rx1_queue_address);
++
++ log(L_INIT, "dump queue head (from card):\n"
++ "len: %u\n"
++ "tx_memory_block_address: %X\n"
++ "rx_memory_block_address: %X\n"
++ "tx1_queue address: %X\n"
++ "rx1_queue address: %X\n",
++ le16_to_cpu(queueconf.len),
++ le32_to_cpu(queueconf.tx_memory_block_address),
++ le32_to_cpu(queueconf.rx_memory_block_address),
++ tx_queue_start,
++ rx_queue_start);
++
++#if defined (ACX_MEM)
++ acxmem_create_desc_queues(adev, tx_queue_start, rx_queue_start);
++#else
++ if (IS_PCI(adev))
++ acxpci_create_desc_queues(adev, tx_queue_start, rx_queue_start);
++#endif
++
++ FN_EXIT1(OK);
++ return OK;
++fail:
++#if defined (ACX_MEM)
++ acxmem_free_desc_queues(adev);
++#else
++ if (IS_PCI(adev))
++ acxpci_free_desc_queues(adev);
++#endif
++
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***********************************************************************
++*/
++static void
++acx_s_initialize_rx_config(acx_device_t *adev)
++{
++ struct {
++ u16 id;
++ u16 len;
++ u16 rx_cfg1;
++ u16 rx_cfg2;
++ } ACX_PACKED cfg;
++
++ switch (adev->mode) {
++ case ACX_MODE_OFF:
++ adev->rx_config_1 = (u16) (0
++ /* | RX_CFG1_INCLUDE_RXBUF_HDR */
++ /* | RX_CFG1_FILTER_SSID */
++ /* | RX_CFG1_FILTER_BCAST */
++ /* | RX_CFG1_RCV_MC_ADDR1 */
++ /* | RX_CFG1_RCV_MC_ADDR0 */
++ /* | RX_CFG1_FILTER_ALL_MULTI */
++ /* | RX_CFG1_FILTER_BSSID */
++ /* | RX_CFG1_FILTER_MAC */
++ /* | RX_CFG1_RCV_PROMISCUOUS */
++ /* | RX_CFG1_INCLUDE_FCS */
++ /* | RX_CFG1_INCLUDE_PHY_HDR */
++ );
++ adev->rx_config_2 = (u16) (0
++ /*| RX_CFG2_RCV_ASSOC_REQ */
++ /*| RX_CFG2_RCV_AUTH_FRAMES */
++ /*| RX_CFG2_RCV_BEACON_FRAMES */
++ /*| RX_CFG2_RCV_CONTENTION_FREE */
++ /*| RX_CFG2_RCV_CTRL_FRAMES */
++ /*| RX_CFG2_RCV_DATA_FRAMES */
++ /*| RX_CFG2_RCV_BROKEN_FRAMES */
++ /*| RX_CFG2_RCV_MGMT_FRAMES */
++ /*| RX_CFG2_RCV_PROBE_REQ */
++ /*| RX_CFG2_RCV_PROBE_RESP */
++ /*| RX_CFG2_RCV_ACK_FRAMES */
++ /*| RX_CFG2_RCV_OTHER */
++ );
++ break;
++ case ACX_MODE_MONITOR:
++ adev->rx_config_1 = (u16) (0
++ /* | RX_CFG1_INCLUDE_RXBUF_HDR */
++ /* | RX_CFG1_FILTER_SSID */
++ /* | RX_CFG1_FILTER_BCAST */
++ /* | RX_CFG1_RCV_MC_ADDR1 */
++ /* | RX_CFG1_RCV_MC_ADDR0 */
++ /* | RX_CFG1_FILTER_ALL_MULTI */
++ /* | RX_CFG1_FILTER_BSSID */
++ /* | RX_CFG1_FILTER_MAC */
++ | RX_CFG1_RCV_PROMISCUOUS
++ /* | RX_CFG1_INCLUDE_FCS */
++ /* | RX_CFG1_INCLUDE_PHY_HDR */
++ );
++ adev->rx_config_2 = (u16) (0
++ | RX_CFG2_RCV_ASSOC_REQ
++ | RX_CFG2_RCV_AUTH_FRAMES
++ | RX_CFG2_RCV_BEACON_FRAMES
++ | RX_CFG2_RCV_CONTENTION_FREE
++ | RX_CFG2_RCV_CTRL_FRAMES
++ | RX_CFG2_RCV_DATA_FRAMES
++ | RX_CFG2_RCV_BROKEN_FRAMES
++ | RX_CFG2_RCV_MGMT_FRAMES
++ | RX_CFG2_RCV_PROBE_REQ
++ | RX_CFG2_RCV_PROBE_RESP
++ | RX_CFG2_RCV_ACK_FRAMES
++ | RX_CFG2_RCV_OTHER
++ );
++ break;
++ default:
++ adev->rx_config_1 = (u16) (0
++ /* | RX_CFG1_INCLUDE_RXBUF_HDR */
++ /* | RX_CFG1_FILTER_SSID */
++ /* | RX_CFG1_FILTER_BCAST */
++ /* | RX_CFG1_RCV_MC_ADDR1 */
++ /* | RX_CFG1_RCV_MC_ADDR0 */
++ /* | RX_CFG1_FILTER_ALL_MULTI */
++ /* | RX_CFG1_FILTER_BSSID */
++ | RX_CFG1_FILTER_MAC
++ /* | RX_CFG1_RCV_PROMISCUOUS */
++ /* | RX_CFG1_INCLUDE_FCS */
++ /* | RX_CFG1_INCLUDE_PHY_HDR */
++ );
++ adev->rx_config_2 = (u16) (0
++ | RX_CFG2_RCV_ASSOC_REQ
++ | RX_CFG2_RCV_AUTH_FRAMES
++ | RX_CFG2_RCV_BEACON_FRAMES
++ | RX_CFG2_RCV_CONTENTION_FREE
++ | RX_CFG2_RCV_CTRL_FRAMES
++ | RX_CFG2_RCV_DATA_FRAMES
++ /*| RX_CFG2_RCV_BROKEN_FRAMES */
++ | RX_CFG2_RCV_MGMT_FRAMES
++ | RX_CFG2_RCV_PROBE_REQ
++ | RX_CFG2_RCV_PROBE_RESP
++ /*| RX_CFG2_RCV_ACK_FRAMES */
++ | RX_CFG2_RCV_OTHER
++ );
++ break;
++ }
++ adev->rx_config_1 |= RX_CFG1_INCLUDE_RXBUF_HDR;
++
++ if ((adev->rx_config_1 & RX_CFG1_INCLUDE_PHY_HDR)
++ || (adev->firmware_numver >= 0x02000000))
++ adev->phy_header_len = IS_ACX111(adev) ? 8 : 4;
++ else
++ adev->phy_header_len = 0;
++
++ log(L_INIT, "setting RXconfig to %04X:%04X\n",
++ adev->rx_config_1, adev->rx_config_2);
++ cfg.rx_cfg1 = cpu_to_le16(adev->rx_config_1);
++ cfg.rx_cfg2 = cpu_to_le16(adev->rx_config_2);
++ acx_s_configure(adev, &cfg, ACX1xx_IE_RXCONFIG);
++}
++
++
++/***********************************************************************
++** acx_s_set_defaults
++*/
++void
++acx_s_set_defaults(acx_device_t *adev)
++{
++ unsigned long flags;
++
++ FN_ENTER;
++
++ /* do it before getting settings, prevent bogus channel 0 warning */
++ adev->channel = 1;
++
++ /* query some settings from the card.
++ * NOTE: for some settings, e.g. CCA and ED (ACX100!), an initial
++ * query is REQUIRED, otherwise the card won't work correctly! */
++ adev->get_mask = GETSET_ANTENNA|GETSET_SENSITIVITY|GETSET_STATION_ID|GETSET_REG_DOMAIN;
++ /* Only ACX100 supports ED and CCA */
++ if (IS_ACX100(adev))
++ adev->get_mask |= GETSET_CCA|GETSET_ED_THRESH;
++
++ acx_s_update_card_settings(adev);
++
++ acx_lock(adev, flags);
++
++ /* set our global interrupt mask */
++#if defined (ACX_MEM)
++ acxmem_set_interrupt_mask(adev);
++#else
++ if (IS_PCI(adev))
++ acxpci_set_interrupt_mask(adev);
++#endif
++
++ adev->led_power = 1; /* LED is active on startup */
++ adev->brange_max_quality = 60; /* LED blink max quality is 60 */
++ adev->brange_time_last_state_change = jiffies;
++
++ /* copy the MAC address we just got from the card
++ * into our MAC address used during current 802.11 session */
++ MAC_COPY(adev->dev_addr, adev->ndev->dev_addr);
++ MAC_BCAST(adev->ap);
++
++ adev->essid_len =
++ snprintf(adev->essid, sizeof(adev->essid), "STA%02X%02X%02X",
++ adev->dev_addr[3], adev->dev_addr[4], adev->dev_addr[5]);
++ adev->essid_active = 1;
++
++ /* we have a nick field to waste, so why not abuse it
++ * to announce the driver version? ;-) */
++ strncpy(adev->nick, "acx " ACX_RELEASE, IW_ESSID_MAX_SIZE);
++
++#if defined (ACX_MEM)
++ adev->reg_dom_id = adev->cfgopt_domains.list[0];
++#else
++ if (IS_PCI(adev)) { /* FIXME: this should be made to apply to USB, too! */
++ /* first regulatory domain entry in EEPROM == default reg. domain */
++ adev->reg_dom_id = adev->cfgopt_domains.list[0];
++ }
++#endif
++
++ /* 0xffff would be better, but then we won't get a "scan complete"
++ * interrupt, so our current infrastructure will fail: */
++ adev->scan_count = 1;
++ adev->scan_mode = ACX_SCAN_OPT_ACTIVE;
++ adev->scan_duration = 100;
++ adev->scan_probe_delay = 200;
++ /* reported to break scanning: adev->scan_probe_delay = adev->cfgopt_probe_delay; */
++ adev->scan_rate = ACX_SCAN_RATE_1;
++
++ adev->mode = ACX_MODE_2_STA;
++ adev->auth_alg = WLAN_AUTH_ALG_OPENSYSTEM;
++ adev->listen_interval = 100;
++ adev->beacon_interval = DEFAULT_BEACON_INTERVAL;
++ adev->dtim_interval = DEFAULT_DTIM_INTERVAL;
++
++ adev->msdu_lifetime = DEFAULT_MSDU_LIFETIME;
++
++ adev->rts_threshold = DEFAULT_RTS_THRESHOLD;
++ adev->frag_threshold = 2346;
++
++ /* use standard default values for retry limits */
++ adev->short_retry = 7; /* max. retries for (short) non-RTS packets */
++ adev->long_retry = 4; /* max. retries for long (RTS) packets */
++
++ adev->preamble_mode = 2; /* auto */
++ adev->fallback_threshold = 3;
++ adev->stepup_threshold = 10;
++ adev->rate_bcast = RATE111_1;
++ adev->rate_bcast100 = RATE100_1;
++ adev->rate_basic = RATE111_1 | RATE111_2;
++ adev->rate_auto = 1;
++ if (IS_ACX111(adev)) {
++ adev->rate_oper = RATE111_ALL;
++ } else {
++ adev->rate_oper = RATE111_ACX100_COMPAT;
++ }
++
++ /* Supported Rates element - the rates here are given in units of
++ * 500 kbit/s, plus 0x80 added. See 802.11-1999.pdf item 7.3.2.2 */
++ acx_l_update_ratevector(adev);
++
++ /* set some more defaults */
++ if (IS_ACX111(adev)) {
++ /* 30mW (15dBm) is default, at least in my acx111 card: */
++ adev->tx_level_dbm = 15;
++ } else {
++ /* don't use max. level, since it might be dangerous
++ * (e.g. WRT54G people experience
++ * excessive Tx power damage!) */
++ adev->tx_level_dbm = 18;
++ /*
++ * Lower power for the iPaq hx4700
++ */
++ if (IS_MEM(adev)) {
++ adev->tx_level_dbm = 14;
++ }
++ }
++ /* adev->tx_level_auto = 1; */
++ if (IS_ACX111(adev)) {
++ /* start with sensitivity level 1 out of 3: */
++ adev->sensitivity = 1;
++ }
++
++/* #define ENABLE_POWER_SAVE */
++#ifdef ENABLE_POWER_SAVE
++ adev->ps_wakeup_cfg = PS_CFG_ENABLE | PS_CFG_WAKEUP_ALL_BEAC;
++ adev->ps_listen_interval = 1;
++ adev->ps_options = PS_OPT_ENA_ENHANCED_PS | PS_OPT_TX_PSPOLL | PS_OPT_STILL_RCV_BCASTS;
++ adev->ps_hangover_period = 30;
++ adev->ps_enhanced_transition_time = 0;
++#else
++ adev->ps_wakeup_cfg = 0;
++ adev->ps_listen_interval = 0;
++ adev->ps_options = 0;
++ adev->ps_hangover_period = 0;
++ adev->ps_enhanced_transition_time = 0;
++#endif
++
++ /* These settings will be set in fw on ifup */
++ adev->set_mask = 0
++ | GETSET_RETRY
++ | SET_MSDU_LIFETIME
++ /* configure card to do rate fallback when in auto rate mode */
++ | SET_RATE_FALLBACK
++ | SET_RXCONFIG
++ | GETSET_TXPOWER
++ /* better re-init the antenna value we got above */
++ | GETSET_ANTENNA
++#if POWER_SAVE_80211
++ | GETSET_POWER_80211
++#endif
++ ;
++
++ acx_unlock(adev, flags);
++ acx_lock_unhold(); /* hold time 844814 CPU ticks @2GHz */
++
++ acx_s_initialize_rx_config(adev);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** FIXME: this should be solved in a general way for all radio types
++** by decoding the radio firmware module,
++** since it probably has some standard structure describing how to
++** set the power level of the radio module which it controls.
++** Or maybe not, since the radio module probably has a function interface
++** instead which then manages Tx level programming :-\
++*/
++static int
++acx111_s_set_tx_level(acx_device_t *adev, u8 level_dbm)
++{
++ struct acx111_ie_tx_level tx_level;
++
++ /* my acx111 card has two power levels in its configoptions (== EEPROM):
++ * 1 (30mW) [15dBm]
++ * 2 (10mW) [10dBm]
++ * For now, just assume all other acx111 cards have the same.
++ * FIXME: Ideally we would query it here, but we first need a
++ * standard way to query individual configoptions easily.
++ * Well, now we have proper cfgopt txpower variables, but this still
++ * hasn't been done yet, since it also requires dBm <-> mW conversion here... */
++ if (level_dbm <= 12) {
++ tx_level.level = 2; /* 10 dBm */
++ adev->tx_level_dbm = 10;
++ } else {
++ tx_level.level = 1; /* 15 dBm */
++ adev->tx_level_dbm = 15;
++ }
++ if (level_dbm != adev->tx_level_dbm)
++ log(L_INIT, "acx111 firmware has specific "
++ "power levels only: adjusted %d dBm to %d dBm!\n",
++ level_dbm, adev->tx_level_dbm);
++
++ return acx_s_configure(adev, &tx_level, ACX1xx_IE_DOT11_TX_POWER_LEVEL);
++}
++
++static int
++acx_s_set_tx_level(acx_device_t *adev, u8 level_dbm)
++{
++ if (IS_ACX111(adev)) {
++ return acx111_s_set_tx_level(adev, level_dbm);
++ }
++#if defined (ACX_MEM)
++ return acx100mem_s_set_tx_level(adev, level_dbm);
++#else
++ if (IS_PCI(adev)) {
++ return acx100pci_s_set_tx_level(adev, level_dbm);
++ }
++#endif
++ return OK;
++}
++
++
++/***********************************************************************
++*/
++#ifdef UNUSED
++/* Returns the current tx level (ACX111) */
++static u8
++acx111_s_get_tx_level(acx_device_t *adev)
++{
++ struct acx111_ie_tx_level tx_level;
++
++ tx_level.level = 0;
++ acx_s_interrogate(adev, &tx_level, ACX1xx_IE_DOT11_TX_POWER_LEVEL);
++ return tx_level.level;
++}
++#endif
++
++
++/***********************************************************************
++** acx_l_rxmonitor
++** Called from IRQ context only
++*/
++static void
++acx_l_rxmonitor(acx_device_t *adev, const rxbuffer_t *rxbuf)
++{
++ wlansniffrm_t *msg;
++ struct sk_buff *skb;
++ void *datap;
++ unsigned int skb_len;
++ int payload_offset;
++
++ FN_ENTER;
++
++ /* we are in big luck: the acx100 doesn't modify any of the fields */
++ /* in the 802.11 frame. just pass this packet into the PF_PACKET */
++ /* subsystem. yeah. */
++ payload_offset = ((u8*)acx_get_wlan_hdr(adev, rxbuf) - (u8*)rxbuf);
++ skb_len = RXBUF_BYTES_USED(rxbuf) - payload_offset;
++
++ /* sanity check */
++ if (unlikely(skb_len > WLAN_A4FR_MAXLEN_WEP)) {
++ printk("%s: monitor mode panic: oversized frame!\n",
++ adev->ndev->name);
++ goto end;
++ }
++
++ if (adev->ndev->type == ARPHRD_IEEE80211_PRISM)
++ skb_len += sizeof(*msg);
++
++ /* allocate skb */
++ skb = dev_alloc_skb(skb_len);
++ if (unlikely(!skb)) {
++ printk("%s: no memory for skb (%u bytes)\n",
++ adev->ndev->name, skb_len);
++ goto end;
++ }
++
++ skb_put(skb, skb_len);
++
++ if (adev->ndev->type == ARPHRD_IEEE80211) {
++ /* when in raw 802.11 mode, just copy frame as-is */
++ datap = skb->data;
++ } else if (adev->ndev->type == ARPHRD_IEEE80211_PRISM) {
++ /* emulate prism header */
++ msg = (wlansniffrm_t*)skb->data;
++ datap = msg + 1;
++
++ msg->msgcode = WLANSNIFFFRM;
++ msg->msglen = sizeof(*msg);
++ strncpy(msg->devname, adev->ndev->name, sizeof(msg->devname)-1);
++ msg->devname[sizeof(msg->devname)-1] = '\0';
++
++ msg->hosttime.did = WLANSNIFFFRM_hosttime;
++ msg->hosttime.status = WLANITEM_STATUS_data_ok;
++ msg->hosttime.len = 4;
++ msg->hosttime.data = jiffies;
++
++ msg->mactime.did = WLANSNIFFFRM_mactime;
++ msg->mactime.status = WLANITEM_STATUS_data_ok;
++ msg->mactime.len = 4;
++ msg->mactime.data = rxbuf->time;
++
++ msg->channel.did = WLANSNIFFFRM_channel;
++ msg->channel.status = WLANITEM_STATUS_data_ok;
++ msg->channel.len = 4;
++ msg->channel.data = adev->channel;
++
++ msg->rssi.did = WLANSNIFFFRM_rssi;
++ msg->rssi.status = WLANITEM_STATUS_no_value;
++ msg->rssi.len = 4;
++ msg->rssi.data = 0;
++
++ msg->sq.did = WLANSNIFFFRM_sq;
++ msg->sq.status = WLANITEM_STATUS_no_value;
++ msg->sq.len = 4;
++ msg->sq.data = 0;
++
++ msg->signal.did = WLANSNIFFFRM_signal;
++ msg->signal.status = WLANITEM_STATUS_data_ok;
++ msg->signal.len = 4;
++ msg->signal.data = rxbuf->phy_snr;
++
++ msg->noise.did = WLANSNIFFFRM_noise;
++ msg->noise.status = WLANITEM_STATUS_data_ok;
++ msg->noise.len = 4;
++ msg->noise.data = rxbuf->phy_level;
++
++ msg->rate.did = WLANSNIFFFRM_rate;
++ msg->rate.status = WLANITEM_STATUS_data_ok;
++ msg->rate.len = 4;
++ msg->rate.data = rxbuf->phy_plcp_signal / 5;
++
++ msg->istx.did = WLANSNIFFFRM_istx;
++ msg->istx.status = WLANITEM_STATUS_data_ok;
++ msg->istx.len = 4;
++ msg->istx.data = 0; /* tx=0: it's not a tx packet */
++
++ skb_len -= sizeof(*msg);
++
++ msg->frmlen.did = WLANSNIFFFRM_signal;
++ msg->frmlen.status = WLANITEM_STATUS_data_ok;
++ msg->frmlen.len = 4;
++ msg->frmlen.data = skb_len;
++ } else {
++ printk("acx: unsupported netdev type %d!\n", adev->ndev->type);
++ dev_kfree_skb(skb);
++ return;
++ }
++
++ /* sanity check (keep it here) */
++ if (unlikely((int)skb_len < 0)) {
++ printk("acx: skb_len=%d. Driver bug, please report\n", (int)skb_len);
++ dev_kfree_skb(skb);
++ return;
++ }
++ memcpy(datap, ((unsigned char*)rxbuf)+payload_offset, skb_len);
++
++ skb->dev = adev->ndev;
++ skb->dev->last_rx = jiffies;
++
++ skb_reset_mac_header(skb);
++ skb->ip_summed = CHECKSUM_NONE;
++ skb->pkt_type = PACKET_OTHERHOST;
++ skb->protocol = htons(ETH_P_80211_RAW);
++ netif_rx(skb);
++
++ adev->stats.rx_packets++;
++ adev->stats.rx_bytes += skb->len;
++
++end:
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_l_rx_ieee802_11_frame
++**
++** Called from IRQ context only
++*/
++
++/* All these contortions are for saner dup logging
++**
++** We want: (a) to know about excessive dups
++** (b) to not spam kernel log about occasional dups
++**
++** 1/64 threshold was chosen by running "ping -A"
++** It gave "rx: 59 DUPs in 2878 packets" only with 4 parallel
++** "ping -A" streams running. */
++/* 2005-10-11: bumped up to 1/8
++** subtract a $smallint from dup_count in order to
++** avoid "2 DUPs in 19 packets" messages */
++static inline int
++acx_l_handle_dup(acx_device_t *adev, u16 seq)
++{
++ if (adev->dup_count) {
++ adev->nondup_count++;
++ if (time_after(jiffies, adev->dup_msg_expiry)) {
++ /* Log only if more than 1 dup in 64 packets */
++ if (adev->nondup_count/8 < adev->dup_count-5) {
++ printk(KERN_INFO "%s: rx: %d DUPs in "
++ "%d packets received in 10 secs\n",
++ adev->ndev->name,
++ adev->dup_count,
++ adev->nondup_count);
++ }
++ adev->dup_count = 0;
++ adev->nondup_count = 0;
++ }
++ }
++ if (unlikely(seq == adev->last_seq_ctrl)) {
++ if (!adev->dup_count++)
++ adev->dup_msg_expiry = jiffies + 10*HZ;
++ adev->stats.rx_errors++;
++ return 1; /* a dup */
++ }
++ adev->last_seq_ctrl = seq;
++ return 0;
++}
++
++static int
++acx_l_rx_ieee802_11_frame(acx_device_t *adev, rxbuffer_t *rxbuf)
++{
++ unsigned int ftype, fstype;
++ const wlan_hdr_t *hdr;
++ int result = NOT_OK;
++
++ FN_ENTER;
++
++ hdr = acx_get_wlan_hdr(adev, rxbuf);
++
++ /* see IEEE 802.11-1999.pdf chapter 7 "MAC frame formats" */
++ if (unlikely((hdr->fc & WF_FC_PVERi) != 0)) {
++ printk_ratelimited(KERN_INFO "rx: unsupported 802.11 protocol\n");
++ goto end;
++ }
++
++ ftype = hdr->fc & WF_FC_FTYPEi;
++ fstype = hdr->fc & WF_FC_FSTYPEi;
++
++ switch (ftype) {
++ /* check data frames first, for speed */
++ case WF_FTYPE_DATAi:
++ switch (fstype) {
++ case WF_FSTYPE_DATAONLYi:
++ if (acx_l_handle_dup(adev, hdr->seq))
++ break; /* a dup, simply discard it */
++
++ /* TODO:
++ if (WF_FC_FROMTODSi == (hdr->fc & WF_FC_FROMTODSi)) {
++ result = acx_l_process_data_frame_wds(adev, rxbuf);
++ break;
++ }
++ */
++
++ switch (adev->mode) {
++ case ACX_MODE_3_AP:
++ result = acx_l_process_data_frame_master(adev, rxbuf);
++ break;
++ case ACX_MODE_0_ADHOC:
++ case ACX_MODE_2_STA:
++ result = acx_l_process_data_frame_client(adev, rxbuf);
++ break;
++ }
++ case WF_FSTYPE_DATA_CFACKi:
++ case WF_FSTYPE_DATA_CFPOLLi:
++ case WF_FSTYPE_DATA_CFACK_CFPOLLi:
++ case WF_FSTYPE_CFPOLLi:
++ case WF_FSTYPE_CFACK_CFPOLLi:
++ /* see above.
++ acx_process_class_frame(adev, rxbuf, 3); */
++ break;
++ case WF_FSTYPE_NULLi:
++ /* acx_l_process_NULL_frame(adev, rxbuf, 3); */
++ break;
++ /* FIXME: same here, see above */
++ case WF_FSTYPE_CFACKi:
++ default:
++ break;
++ }
++ break;
++ case WF_FTYPE_MGMTi:
++ result = acx_l_process_mgmt_frame(adev, rxbuf);
++ break;
++ case WF_FTYPE_CTLi:
++ if (fstype == WF_FSTYPE_PSPOLLi)
++ result = OK;
++ /* this call is irrelevant, since
++ * acx_process_class_frame is a stub, so return
++ * immediately instead.
++ * return acx_process_class_frame(adev, rxbuf, 3); */
++ break;
++ default:
++ break;
++ }
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_l_process_rxbuf
++**
++** NB: used by USB code also
++*/
++void
++acx_l_process_rxbuf(acx_device_t *adev, rxbuffer_t *rxbuf)
++{
++ struct wlan_hdr *hdr;
++ unsigned int qual;
++ int buf_len;
++ u16 fc;
++
++ hdr = acx_get_wlan_hdr(adev, rxbuf);
++ fc = le16_to_cpu(hdr->fc);
++ /* length of frame from control field to first byte of FCS */
++ buf_len = RXBUF_BYTES_RCVD(adev, rxbuf);
++
++ if ( ((WF_FC_FSTYPE & fc) != WF_FSTYPE_BEACON)
++ || (acx_debug & L_XFER_BEACON)
++ ) {
++ log(L_XFER|L_DATA, "rx: %s "
++ "time:%u len:%u signal:%u SNR:%u macstat:%02X "
++ "phystat:%02X phyrate:%u status:%u\n",
++ acx_get_packet_type_string(fc),
++ le32_to_cpu(rxbuf->time),
++ buf_len,
++ acx_signal_to_winlevel(rxbuf->phy_level),
++ acx_signal_to_winlevel(rxbuf->phy_snr),
++ rxbuf->mac_status,
++ rxbuf->phy_stat_baseband,
++ rxbuf->phy_plcp_signal,
++ adev->status);
++ }
++
++ if (unlikely(acx_debug & L_DATA)) {
++ printk("rx: 802.11 buf[%u]: ", buf_len);
++ acx_dump_bytes(hdr, buf_len);
++ }
++
++ /* FIXME: should check for Rx errors (rxbuf->mac_status?
++ * discard broken packets - but NOT for monitor!)
++ * and update Rx packet statistics here */
++
++ if (unlikely(adev->mode == ACX_MODE_MONITOR)) {
++ acx_l_rxmonitor(adev, rxbuf);
++ } else if (likely(buf_len >= WLAN_HDR_A3_LEN)) {
++ acx_l_rx_ieee802_11_frame(adev, rxbuf);
++ } else {
++ log(L_DEBUG|L_XFER|L_DATA,
++ "rx: NOT receiving packet (%s): "
++ "size too small (%u)\n",
++ acx_get_packet_type_string(fc),
++ buf_len);
++ }
++
++ /* Now check Rx quality level, AFTER processing packet.
++ * I tried to figure out how to map these levels to dBm
++ * values, but for the life of me I really didn't
++ * manage to get it. Either these values are not meant to
++ * be expressed in dBm, or it's some pretty complicated
++ * calculation. */
++
++#ifdef FROM_SCAN_SOURCE_ONLY
++ /* only consider packets originating from the MAC
++ * address of the device that's managing our BSSID.
++ * Disable it for now, since it removes information (levels
++ * from different peers) and slows the Rx path. */
++ if (adev->ap_client
++ && mac_is_equal(hdr->a2, adev->ap_client->address)) {
++#endif
++ adev->wstats.qual.level = acx_signal_to_winlevel(rxbuf->phy_level);
++ adev->wstats.qual.noise = acx_signal_to_winlevel(rxbuf->phy_snr);
++#ifndef OLD_QUALITY
++ qual = acx_signal_determine_quality(adev->wstats.qual.level,
++ adev->wstats.qual.noise);
++#else
++ qual = (adev->wstats.qual.noise <= 100) ?
++ 100 - adev->wstats.qual.noise : 0;
++#endif
++ adev->wstats.qual.qual = qual;
++ adev->wstats.qual.updated = 7; /* all 3 indicators updated */
++#ifdef FROM_SCAN_SOURCE_ONLY
++ }
++#endif
++}
++
++
++/***********************************************************************
++** acx_l_handle_txrate_auto
++**
++** Theory of operation:
++** client->rate_cap is a bitmask of rates client is capable of.
++** client->rate_cfg is a bitmask of allowed (configured) rates.
++** It is set as a result of iwconfig rate N [auto]
++** or iwpriv set_rates "N,N,N N,N,N" commands.
++** It can be fixed (e.g. 0x0080 == 18Mbit only),
++** auto (0x00ff == 18Mbit or any lower value),
++** and code handles any bitmask (0x1081 == try 54Mbit,18Mbit,1Mbit _only_).
++**
++** client->rate_cur is a value for rate111 field in tx descriptor.
++** It is always set to txrate_cfg sans zero or more most significant
++** bits. This routine handles selection of new rate_cur value depending on
++** outcome of last tx event.
++**
++** client->rate_100 is a precalculated rate value for acx100
++** (we can do without it, but will need to calculate it on each tx).
++**
++** You cannot configure mixed usage of 5.5 and/or 11Mbit rate
++** with PBCC and CCK modulation. Either both at CCK or both at PBCC.
++** In theory you can implement it, but so far it is considered not worth doing.
++**
++** 22Mbit, of course, is PBCC always. */
++
++/* maps acx100 tx descr rate field to acx111 one */
++static u16
++rate100to111(u8 r)
++{
++ switch (r) {
++ case RATE100_1: return RATE111_1;
++ case RATE100_2: return RATE111_2;
++ case RATE100_5:
++ case (RATE100_5 | RATE100_PBCC511): return RATE111_5;
++ case RATE100_11:
++ case (RATE100_11 | RATE100_PBCC511): return RATE111_11;
++ case RATE100_22: return RATE111_22;
++ default:
++ printk("acx: unexpected acx100 txrate: %u! "
++ "Please report\n", r);
++ return RATE111_1;
++ }
++}
++
++
++void
++acx_l_handle_txrate_auto(acx_device_t *adev, struct client *txc,
++ u16 cur, u8 rate100, u16 rate111,
++ u8 error, int pkts_to_ignore)
++{
++ u16 sent_rate;
++ int slower_rate_was_used;
++
++ /* vda: hmm. current code will do this:
++ ** 1. send packets at 11 Mbit, stepup++
++ ** 2. will try to send at 22Mbit. hardware will see no ACK,
++ ** retries at 11Mbit, success. code notes that used rate
++ ** is lower. stepup = 0, fallback++
++ ** 3. repeat step 2 fallback_count times. Fall back to
++ ** 11Mbit. go to step 1.
++ ** If stepup_count is large (say, 16) and fallback_count
++ ** is small (3), this wouldn't be too bad wrt throughput */
++
++ if (unlikely(!cur)) {
++ printk("acx: BUG! ratemask is empty\n");
++ return; /* or else we may lock up the box */
++ }
++
++ /* do some preparations, i.e. calculate the one rate that was
++ * used to send this packet */
++ if (IS_ACX111(adev)) {
++ sent_rate = 1 << highest_bit(rate111 & RATE111_ALL);
++ } else {
++ sent_rate = rate100to111(rate100);
++ }
++ /* sent_rate has only one bit set now, corresponding to tx rate
++ * which was used by hardware to tx this particular packet */
++
++ /* now do the actual auto rate management */
++ log(L_XFER, "tx: %sclient=%p/"MACSTR" used=%04X cur=%04X cfg=%04X "
++ "__=%u/%u ^^=%u/%u\n",
++ (txc->ignore_count > 0) ? "[IGN] " : "",
++ txc, MAC(txc->address), sent_rate, cur, txc->rate_cfg,
++ txc->fallback_count, adev->fallback_threshold,
++ txc->stepup_count, adev->stepup_threshold
++ );
++
++ /* we need to ignore old packets already in the tx queue since
++ * they use older rate bytes configured before our last rate change,
++ * otherwise our mechanism will get confused by interpreting old data.
++ * Do it after logging above */
++ if (txc->ignore_count) {
++ txc->ignore_count--;
++ return;
++ }
++
++ /* true only if the only nonzero bit in sent_rate is
++ ** less significant than highest nonzero bit in cur */
++ slower_rate_was_used = ( cur > ((sent_rate<<1)-1) );
++
++ if (slower_rate_was_used || error) {
++ txc->stepup_count = 0;
++ if (++txc->fallback_count <= adev->fallback_threshold)
++ return;
++ txc->fallback_count = 0;
++
++ /* clear highest 1 bit in cur */
++ sent_rate = RATE111_54;
++ while (!(cur & sent_rate)) sent_rate >>= 1;
++ CLEAR_BIT(cur, sent_rate);
++ if (!cur) /* we can't disable all rates! */
++ cur = sent_rate;
++ log(L_XFER, "tx: falling back to ratemask %04X\n", cur);
++
++ } else { /* there was neither lower rate nor error */
++ txc->fallback_count = 0;
++ if (++txc->stepup_count <= adev->stepup_threshold)
++ return;
++ txc->stepup_count = 0;
++
++ /* Sanitize. Sort of not needed, but I dont trust hw that much...
++ ** what if it can report bogus tx rates sometimes? */
++ while (!(cur & sent_rate)) sent_rate >>= 1;
++
++ /* try to find a higher sent_rate that isn't yet in our
++ * current set, but is an allowed cfg */
++ while (1) {
++ sent_rate <<= 1;
++ if (sent_rate > txc->rate_cfg)
++ /* no higher rates allowed by config */
++ return;
++ if (!(cur & sent_rate) && (txc->rate_cfg & sent_rate))
++ /* found */
++ break;
++ /* not found, try higher one */
++ }
++ SET_BIT(cur, sent_rate);
++ log(L_XFER, "tx: stepping up to ratemask %04X\n", cur);
++ }
++
++ txc->rate_cur = cur;
++ txc->ignore_count = pkts_to_ignore;
++ /* calculate acx100 style rate byte if needed */
++ if (IS_ACX100(adev)) {
++ txc->rate_100 = acx_bitpos2rate100[highest_bit(cur)];
++ }
++}
++
++
++/***********************************************************************
++** acx_i_start_xmit
++**
++** Called by network core. Can be called outside of process context.
++*/
++int
++acx_i_start_xmit(struct sk_buff *skb, struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ tx_t *tx;
++ void *txbuf;
++ unsigned long flags;
++ int txresult = NOT_OK;
++ int len;
++
++ FN_ENTER;
++
++ if (unlikely(!skb)) {
++ /* indicate success */
++ txresult = OK;
++ goto end_no_unlock;
++ }
++ if (unlikely(!adev)) {
++ goto end_no_unlock;
++ }
++
++ acx_lock(adev, flags);
++
++ if (unlikely(!(adev->dev_state_mask & ACX_STATE_IFACE_UP))) {
++ goto end;
++ }
++ if (unlikely(adev->mode == ACX_MODE_OFF)) {
++ goto end;
++ }
++ if (unlikely(acx_queue_stopped(ndev))) {
++ log(L_DEBUG, "%s: called when queue stopped\n", __func__);
++ goto end;
++ }
++ if (unlikely(ACX_STATUS_4_ASSOCIATED != adev->status)) {
++ log(L_XFER, "trying to xmit, but not associated yet: "
++ "aborting...\n");
++ /* silently drop the packet, since we're not connected yet */
++ txresult = OK;
++ /* ...but indicate an error nevertheless */
++ adev->stats.tx_errors++;
++ goto end;
++ }
++
++ tx = acx_l_alloc_tx(adev);
++ if (unlikely(!tx)) {
++#ifndef ACX_MEM
++ /*
++ * generic slave interface has to make do with the tiny amount, around
++ * 7k, of transmit buffer space on the ACX itself. It is likely this will
++ * frequently be full.
++ */
++ printk_ratelimited("%s: start_xmit: txdesc ring is full, "
++ "dropping tx\n", ndev->name);
++#endif
++ txresult = NOT_OK;
++ goto end;
++ }
++
++ txbuf = acx_l_get_txbuf(adev, tx);
++ if (unlikely(!txbuf)) {
++ /* Card was removed */
++ txresult = NOT_OK;
++ acx_l_dealloc_tx(adev, tx);
++ goto end;
++ }
++ len = acx_ether_to_txbuf(adev, txbuf, skb);
++ if (unlikely(len < 0)) {
++ /* Error in packet conversion */
++ txresult = NOT_OK;
++ acx_l_dealloc_tx(adev, tx);
++ goto end;
++ }
++ acx_l_tx_data(adev, tx, len);
++ ndev->trans_start = jiffies;
++
++ txresult = OK;
++ adev->stats.tx_packets++;
++ adev->stats.tx_bytes += skb->len;
++
++end:
++ acx_unlock(adev, flags);
++
++end_no_unlock:
++ if ((txresult == OK) && skb)
++ dev_kfree_skb_any(skb);
++
++ FN_EXIT1(txresult);
++ return txresult;
++}
++
++
++/***********************************************************************
++** acx_l_update_ratevector
++**
++** Updates adev->rate_supported[_len] according to rate_{basic,oper}
++*/
++const u8
++acx_bitpos2ratebyte[] = {
++ DOT11RATEBYTE_1,
++ DOT11RATEBYTE_2,
++ DOT11RATEBYTE_5_5,
++ DOT11RATEBYTE_6_G,
++ DOT11RATEBYTE_9_G,
++ DOT11RATEBYTE_11,
++ DOT11RATEBYTE_12_G,
++ DOT11RATEBYTE_18_G,
++ DOT11RATEBYTE_22,
++ DOT11RATEBYTE_24_G,
++ DOT11RATEBYTE_36_G,
++ DOT11RATEBYTE_48_G,
++ DOT11RATEBYTE_54_G,
++};
++
++void
++acx_l_update_ratevector(acx_device_t *adev)
++{
++ u16 bcfg = adev->rate_basic;
++ u16 ocfg = adev->rate_oper;
++ u8 *supp = adev->rate_supported;
++ const u8 *dot11 = acx_bitpos2ratebyte;
++
++ FN_ENTER;
++
++ while (ocfg) {
++ if (ocfg & 1) {
++ *supp = *dot11;
++ if (bcfg & 1) {
++ *supp |= 0x80;
++ }
++ supp++;
++ }
++ dot11++;
++ ocfg >>= 1;
++ bcfg >>= 1;
++ }
++ adev->rate_supported_len = supp - adev->rate_supported;
++ if (acx_debug & L_ASSOC) {
++ printk("new ratevector: ");
++ acx_dump_bytes(adev->rate_supported, adev->rate_supported_len);
++ }
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_l_sta_list_init
++*/
++static void
++acx_l_sta_list_init(acx_device_t *adev)
++{
++ FN_ENTER;
++ memset(adev->sta_hash_tab, 0, sizeof(adev->sta_hash_tab));
++ memset(adev->sta_list, 0, sizeof(adev->sta_list));
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_l_sta_list_get_from_hash
++*/
++static inline client_t*
++acx_l_sta_list_get_from_hash(acx_device_t *adev, const u8 *address)
++{
++ return adev->sta_hash_tab[address[5] % VEC_SIZE(adev->sta_hash_tab)];
++}
++
++
++/***********************************************************************
++** acx_l_sta_list_get
++*/
++client_t*
++acx_l_sta_list_get(acx_device_t *adev, const u8 *address)
++{
++ client_t *client;
++ FN_ENTER;
++ client = acx_l_sta_list_get_from_hash(adev, address);
++ while (client) {
++ if (mac_is_equal(address, client->address)) {
++ client->mtime = jiffies;
++ break;
++ }
++ client = client->next;
++ }
++ FN_EXIT0;
++ return client;
++}
++
++
++/***********************************************************************
++** acx_l_sta_list_del
++*/
++void
++acx_l_sta_list_del(acx_device_t *adev, client_t *victim)
++{
++ client_t *client, *next;
++
++ client = acx_l_sta_list_get_from_hash(adev, victim->address);
++ next = client;
++ /* tricky. next = client on first iteration only,
++ ** on all other iters next = client->next */
++ while (next) {
++ if (next == victim) {
++ client->next = victim->next;
++ /* Overkill */
++ memset(victim, 0, sizeof(*victim));
++ break;
++ }
++ client = next;
++ next = client->next;
++ }
++}
++
++
++/***********************************************************************
++** acx_l_sta_list_alloc
++**
++** Never fails - will evict oldest client if needed
++*/
++static client_t*
++acx_l_sta_list_alloc(acx_device_t *adev)
++{
++ int i;
++ unsigned long age, oldest_age;
++ client_t *client, *oldest;
++
++ FN_ENTER;
++
++ oldest = &adev->sta_list[0];
++ oldest_age = 0;
++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
++ client = &adev->sta_list[i];
++
++ if (!client->used) {
++ goto found;
++ } else {
++ age = jiffies - client->mtime;
++ if (oldest_age < age) {
++ oldest_age = age;
++ oldest = client;
++ }
++ }
++ }
++ acx_l_sta_list_del(adev, oldest);
++ client = oldest;
++found:
++ memset(client, 0, sizeof(*client));
++ FN_EXIT0;
++ return client;
++}
++
++
++/***********************************************************************
++** acx_l_sta_list_add
++**
++** Never fails - will evict oldest client if needed
++*/
++/* In case we will reimplement it differently... */
++#define STA_LIST_ADD_CAN_FAIL 0
++
++static client_t*
++acx_l_sta_list_add(acx_device_t *adev, const u8 *address)
++{
++ client_t *client;
++ int index;
++
++ FN_ENTER;
++
++ client = acx_l_sta_list_alloc(adev);
++
++ client->mtime = jiffies;
++ MAC_COPY(client->address, address);
++ client->used = CLIENT_EXIST_1;
++ client->auth_alg = WLAN_AUTH_ALG_SHAREDKEY;
++ client->auth_step = 1;
++ /* give some tentative peer rate values
++ ** (needed because peer may do auth without probing us first,
++ ** thus we'll have no idea of peer's ratevector yet).
++ ** Will be overwritten by scanning or assoc code */
++ client->rate_cap = adev->rate_basic;
++ client->rate_cfg = adev->rate_basic;
++ client->rate_cur = 1 << lowest_bit(adev->rate_basic);
++
++ index = address[5] % VEC_SIZE(adev->sta_hash_tab);
++ client->next = adev->sta_hash_tab[index];
++ adev->sta_hash_tab[index] = client;
++
++ acxlog_mac(L_ASSOC, "sta_list_add: sta=", address, "\n");
++
++ FN_EXIT0;
++ return client;
++}
++
++
++/***********************************************************************
++** acx_l_sta_list_get_or_add
++**
++** Never fails - will evict oldest client if needed
++*/
++static client_t*
++acx_l_sta_list_get_or_add(acx_device_t *adev, const u8 *address)
++{
++ client_t *client = acx_l_sta_list_get(adev, address);
++ if (!client)
++ client = acx_l_sta_list_add(adev, address);
++ return client;
++}
++
++
++/***********************************************************************
++** acx_set_status
++**
++** This function is called in many atomic regions, must not sleep
++**
++** This function does not need locking UNLESS you call it
++** as acx_set_status(ACX_STATUS_4_ASSOCIATED), bacause this can
++** wake queue. This can race with stop_queue elsewhere.
++** See acx_stop_queue comment. */
++void
++acx_set_status(acx_device_t *adev, u16 new_status)
++{
++#define QUEUE_OPEN_AFTER_ASSOC 1 /* this really seems to be needed now */
++ u16 old_status = adev->status;
++
++ FN_ENTER;
++
++ log(L_ASSOC, "%s(%d):%s\n",
++ __func__, new_status, acx_get_status_name(new_status));
++
++ /* wireless_send_event never sleeps */
++ if (ACX_STATUS_4_ASSOCIATED == new_status) {
++ union iwreq_data wrqu;
++
++ wrqu.data.length = 0;
++ wrqu.data.flags = 0;
++ wireless_send_event(adev->ndev, SIOCGIWSCAN, &wrqu, NULL);
++
++ wrqu.data.length = 0;
++ wrqu.data.flags = 0;
++ MAC_COPY(wrqu.ap_addr.sa_data, adev->bssid);
++ wrqu.ap_addr.sa_family = ARPHRD_ETHER;
++ wireless_send_event(adev->ndev, SIOCGIWAP, &wrqu, NULL);
++ } else {
++ union iwreq_data wrqu;
++
++ /* send event with empty BSSID to indicate we're not associated */
++ MAC_ZERO(wrqu.ap_addr.sa_data);
++ wrqu.ap_addr.sa_family = ARPHRD_ETHER;
++ wireless_send_event(adev->ndev, SIOCGIWAP, &wrqu, NULL);
++ }
++
++ adev->status = new_status;
++
++ switch (new_status) {
++ case ACX_STATUS_1_SCANNING:
++ adev->scan_retries = 0;
++ /* 1.0 s initial scan time */
++ acx_set_timer(adev, 1000000);
++ break;
++ case ACX_STATUS_2_WAIT_AUTH:
++ case ACX_STATUS_3_AUTHENTICATED:
++ adev->auth_or_assoc_retries = 0;
++ acx_set_timer(adev, 1500000); /* 1.5 s */
++ break;
++ }
++
++#if QUEUE_OPEN_AFTER_ASSOC
++ if (new_status == ACX_STATUS_4_ASSOCIATED) {
++ if (old_status < ACX_STATUS_4_ASSOCIATED) {
++ /* ah, we're newly associated now,
++ * so let's indicate carrier */
++ acx_carrier_on(adev->ndev, "after association");
++ acx_wake_queue(adev->ndev, "after association");
++ }
++ } else {
++ /* not associated any more, so let's kill carrier */
++ if (old_status >= ACX_STATUS_4_ASSOCIATED) {
++ acx_carrier_off(adev->ndev, "after losing association");
++ acx_stop_queue(adev->ndev, "after losing association");
++ }
++ }
++#endif
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_i_timer
++**
++** Fires up periodically. Used to kick scan/auth/assoc if something goes wrong
++*/
++void
++acx_i_timer(unsigned long address)
++{
++ unsigned long flags;
++ acx_device_t *adev = (acx_device_t*)address;
++
++ FN_ENTER;
++
++ acx_lock(adev, flags);
++
++ log(L_DEBUG|L_ASSOC, "%s: adev->status=%d (%s)\n",
++ __func__, adev->status, acx_get_status_name(adev->status));
++
++ switch (adev->status) {
++ case ACX_STATUS_1_SCANNING:
++ /* was set to 0 by set_status() */
++ if (++adev->scan_retries < 7) {
++ acx_set_timer(adev, 1000000);
++ /* used to interrogate for scan status.
++ ** We rely on SCAN_COMPLETE IRQ instead */
++ log(L_ASSOC, "continuing scan (%d sec)\n",
++ adev->scan_retries);
++ } else {
++ log(L_ASSOC, "stopping scan\n");
++ /* send stop_scan cmd when we leave the interrupt context,
++ * and make a decision what to do next (COMPLETE_SCAN) */
++ acx_schedule_task(adev,
++ ACX_AFTER_IRQ_CMD_STOP_SCAN + ACX_AFTER_IRQ_COMPLETE_SCAN);
++ }
++ break;
++ case ACX_STATUS_2_WAIT_AUTH:
++ /* was set to 0 by set_status() */
++ if (++adev->auth_or_assoc_retries < 10) {
++ log(L_ASSOC, "resend authen1 request (attempt %d)\n",
++ adev->auth_or_assoc_retries + 1);
++ acx_l_transmit_authen1(adev);
++ } else {
++ /* time exceeded: fall back to scanning mode */
++ log(L_ASSOC,
++ "authen1 request reply timeout, giving up\n");
++ /* we are a STA, need to find AP anyhow */
++ acx_set_status(adev, ACX_STATUS_1_SCANNING);
++ acx_schedule_task(adev, ACX_AFTER_IRQ_RESTART_SCAN);
++ }
++ /* used to be 1500000, but some other driver uses 2.5s */
++ acx_set_timer(adev, 2500000);
++ break;
++ case ACX_STATUS_3_AUTHENTICATED:
++ /* was set to 0 by set_status() */
++ if (++adev->auth_or_assoc_retries < 10) {
++ log(L_ASSOC, "resend assoc request (attempt %d)\n",
++ adev->auth_or_assoc_retries + 1);
++ acx_l_transmit_assoc_req(adev);
++ } else {
++ /* time exceeded: give up */
++ log(L_ASSOC,
++ "association request reply timeout, giving up\n");
++ /* we are a STA, need to find AP anyhow */
++ acx_set_status(adev, ACX_STATUS_1_SCANNING);
++ acx_schedule_task(adev, ACX_AFTER_IRQ_RESTART_SCAN);
++ }
++ acx_set_timer(adev, 2500000); /* see above */
++ break;
++ case ACX_STATUS_4_ASSOCIATED:
++ default:
++ break;
++ }
++
++ acx_unlock(adev, flags);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_set_timer
++**
++** Sets the 802.11 state management timer's timeout.
++*/
++void
++acx_set_timer(acx_device_t *adev, int timeout_us)
++{
++ FN_ENTER;
++
++ log(L_DEBUG|L_IRQ, "%s(%u ms)\n", __func__, timeout_us/1000);
++ if (!(adev->dev_state_mask & ACX_STATE_IFACE_UP)) {
++ printk("attempt to set the timer "
++ "when the card interface is not up!\n");
++ goto end;
++ }
++
++ /* first check if the timer was already initialized, THEN modify it */
++ if (adev->mgmt_timer.function) {
++ mod_timer(&adev->mgmt_timer,
++ jiffies + (timeout_us * HZ / 1000000));
++ }
++end:
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_l_transmit_assocresp
++**
++** We are an AP here
++*/
++static const u8
++dot11ratebyte[] = {
++ DOT11RATEBYTE_1,
++ DOT11RATEBYTE_2,
++ DOT11RATEBYTE_5_5,
++ DOT11RATEBYTE_6_G,
++ DOT11RATEBYTE_9_G,
++ DOT11RATEBYTE_11,
++ DOT11RATEBYTE_12_G,
++ DOT11RATEBYTE_18_G,
++ DOT11RATEBYTE_22,
++ DOT11RATEBYTE_24_G,
++ DOT11RATEBYTE_36_G,
++ DOT11RATEBYTE_48_G,
++ DOT11RATEBYTE_54_G,
++};
++
++static inline int
++find_pos(const u8 *p, int size, u8 v)
++{
++ int i;
++ for (i = 0; i < size; i++)
++ if (p[i] == v)
++ return i;
++ /* printk a message about strange byte? */
++ return 0;
++}
++
++static void
++add_bits_to_ratemasks(u8* ratevec, int len, u16* brate, u16* orate)
++{
++ while (len--) {
++ int n = 1 << find_pos(dot11ratebyte,
++ sizeof(dot11ratebyte), *ratevec & 0x7f);
++ if (*ratevec & 0x80)
++ *brate |= n;
++ *orate |= n;
++ ratevec++;
++ }
++}
++
++static int
++acx_l_transmit_assocresp(acx_device_t *adev, const wlan_fr_assocreq_t *req)
++{
++ struct tx *tx;
++ struct wlan_hdr_mgmt *head;
++ struct assocresp_frame_body *body;
++ u8 *p;
++ const u8 *da;
++ /* const u8 *sa; */
++ const u8 *bssid;
++ client_t *clt;
++
++ FN_ENTER;
++
++ /* sa = req->hdr->a1; */
++ da = req->hdr->a2;
++ bssid = req->hdr->a3;
++
++ clt = acx_l_sta_list_get(adev, da);
++ if (!clt)
++ goto ok;
++
++ /* Assoc without auth is a big no-no */
++ /* Let's be liberal: if already assoc'ed STA sends assoc req again,
++ ** we won't be rude */
++ if (clt->used != CLIENT_AUTHENTICATED_2
++ && clt->used != CLIENT_ASSOCIATED_3) {
++ acx_l_transmit_deauthen(adev, da, WLAN_MGMT_REASON_CLASS2_NONAUTH);
++ goto bad;
++ }
++
++ clt->used = CLIENT_ASSOCIATED_3;
++
++ if (clt->aid == 0)
++ clt->aid = ++adev->aid;
++ clt->cap_info = ieee2host16(*(req->cap_info));
++
++ /* We cheat here a bit. We don't really care which rates are flagged
++ ** as basic by the client, so we stuff them in single ratemask */
++ clt->rate_cap = 0;
++ if (req->supp_rates)
++ add_bits_to_ratemasks(req->supp_rates->rates,
++ req->supp_rates->len, &clt->rate_cap, &clt->rate_cap);
++ if (req->ext_rates)
++ add_bits_to_ratemasks(req->ext_rates->rates,
++ req->ext_rates->len, &clt->rate_cap, &clt->rate_cap);
++ /* We can check that client supports all basic rates,
++ ** and deny assoc if not. But let's be liberal, right? ;) */
++ clt->rate_cfg = clt->rate_cap & adev->rate_oper;
++ if (!clt->rate_cfg) clt->rate_cfg = 1 << lowest_bit(adev->rate_oper);
++ clt->rate_cur = 1 << lowest_bit(clt->rate_cfg);
++ if (IS_ACX100(adev))
++ clt->rate_100 = acx_bitpos2rate100[lowest_bit(clt->rate_cfg)];
++ clt->fallback_count = clt->stepup_count = 0;
++ clt->ignore_count = 16;
++
++ tx = acx_l_alloc_tx(adev);
++ if (!tx)
++ goto bad;
++ head = acx_l_get_txbuf(adev, tx);
++ if (!head) {
++ acx_l_dealloc_tx(adev, tx);
++ goto bad;
++ }
++ body = (void*)(head + 1);
++
++ head->fc = WF_FSTYPE_ASSOCRESPi;
++ head->dur = req->hdr->dur;
++ MAC_COPY(head->da, da);
++ MAC_COPY(head->sa, adev->dev_addr);
++ MAC_COPY(head->bssid, bssid);
++ head->seq = req->hdr->seq;
++
++ body->cap_info = host2ieee16(adev->capabilities);
++ body->status = host2ieee16(0);
++ body->aid = host2ieee16(clt->aid);
++ p = wlan_fill_ie_rates((u8*)&body->rates, adev->rate_supported_len,
++ adev->rate_supported);
++ p = wlan_fill_ie_rates_ext(p, adev->rate_supported_len,
++ adev->rate_supported);
++
++ acx_l_tx_data(adev, tx, p - (u8*)head);
++ok:
++ FN_EXIT1(OK);
++ return OK;
++bad:
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***********************************************************************
++* acx_l_transmit_reassocresp
++
++You may be wondering, just like me, what the hell ReAuth is.
++In practice it was seen sent by STA when STA feels like losing connection.
++
++[802.11]
++
++5.4.2.3 Reassociation
++
++Association is sufficient for no-transition message delivery between
++IEEE 802.11 stations. Additional functionality is needed to support
++BSS-transition mobility. The additional required functionality
++is provided by the reassociation service. Reassociation is a DSS.
++The reassociation service is invoked to 'move' a current association
++from one AP to another. This keeps the DS informed of the current
++mapping between AP and STA as the station moves from BSS to BSS within
++an ESS. Reassociation also enables changing association attributes
++of an established association while the STA remains associated with
++the same AP. Reassociation is always initiated by the mobile STA.
++
++5.4.3.1 Authentication
++...
++A STA may be authenticated with many other STAs at any given instant.
++
++5.4.3.1.1 Preauthentication
++
++Because the authentication process could be time-consuming (depending
++on the authentication protocol in use), the authentication service can
++be invoked independently of the association service. Preauthentication
++is typically done by a STA while it is already associated with an AP
++(with which it previously authenticated). IEEE 802.11 does not require
++that STAs preauthenticate with APs. However, authentication is required
++before an association can be established. If the authentication is left
++until reassociation time, this may impact the speed with which a STA can
++reassociate between APs, limiting BSS-transition mobility performance.
++The use of preauthentication takes the authentication service overhead
++out of the time-critical reassociation process.
++
++5.7.3 Reassociation
++
++For a STA to reassociate, the reassociation service causes the following
++message to occur:
++
++ Reassociation request
++
++* Message type: Management
++* Message subtype: Reassociation request
++* Information items:
++ - IEEE address of the STA
++ - IEEE address of the AP with which the STA will reassociate
++ - IEEE address of the AP with which the STA is currently associated
++ - ESSID
++* Direction of message: From STA to 'new' AP
++
++The address of the current AP is included for efficiency. The inclusion
++of the current AP address facilitates MAC reassociation to be independent
++of the DS implementation.
++
++ Reassociation response
++* Message type: Management
++* Message subtype: Reassociation response
++* Information items:
++ - Result of the requested reassociation. (success/failure)
++ - If the reassociation is successful, the response shall include the AID.
++* Direction of message: From AP to STA
++
++7.2.3.6 Reassociation Request frame format
++
++The frame body of a management frame of subtype Reassociation Request
++contains the information shown in Table 9.
++
++Table 9 Reassociation Request frame body
++Order Information
++1 Capability information
++2 Listen interval
++3 Current AP address
++4 SSID
++5 Supported rates
++
++7.2.3.7 Reassociation Response frame format
++
++The frame body of a management frame of subtype Reassociation Response
++contains the information shown in Table 10.
++
++Table 10 Reassociation Response frame body
++Order Information
++1 Capability information
++2 Status code
++3 Association ID (AID)
++4 Supported rates
++
++*/
++static int
++acx_l_transmit_reassocresp(acx_device_t *adev, const wlan_fr_reassocreq_t *req)
++{
++ struct tx *tx;
++ struct wlan_hdr_mgmt *head;
++ struct reassocresp_frame_body *body;
++ u8 *p;
++ const u8 *da;
++ /* const u8 *sa; */
++ const u8 *bssid;
++ client_t *clt;
++
++ FN_ENTER;
++
++ /* sa = req->hdr->a1; */
++ da = req->hdr->a2;
++ bssid = req->hdr->a3;
++
++ /* Must be already authenticated, so it must be in the list */
++ clt = acx_l_sta_list_get(adev, da);
++ if (!clt)
++ goto ok;
++
++ /* Assoc without auth is a big no-no */
++ /* Already assoc'ed STAs sending ReAssoc req are ok per 802.11 */
++ if (clt->used != CLIENT_AUTHENTICATED_2
++ && clt->used != CLIENT_ASSOCIATED_3) {
++ acx_l_transmit_deauthen(adev, da, WLAN_MGMT_REASON_CLASS2_NONAUTH);
++ goto bad;
++ }
++
++ clt->used = CLIENT_ASSOCIATED_3;
++ if (clt->aid == 0) {
++ clt->aid = ++adev->aid;
++ }
++ if (req->cap_info)
++ clt->cap_info = ieee2host16(*(req->cap_info));
++
++ /* We cheat here a bit. We don't really care which rates are flagged
++ ** as basic by the client, so we stuff them in single ratemask */
++ clt->rate_cap = 0;
++ if (req->supp_rates)
++ add_bits_to_ratemasks(req->supp_rates->rates,
++ req->supp_rates->len, &clt->rate_cap, &clt->rate_cap);
++ if (req->ext_rates)
++ add_bits_to_ratemasks(req->ext_rates->rates,
++ req->ext_rates->len, &clt->rate_cap, &clt->rate_cap);
++ /* We can check that client supports all basic rates,
++ ** and deny assoc if not. But let's be liberal, right? ;) */
++ clt->rate_cfg = clt->rate_cap & adev->rate_oper;
++ if (!clt->rate_cfg) clt->rate_cfg = 1 << lowest_bit(adev->rate_oper);
++ clt->rate_cur = 1 << lowest_bit(clt->rate_cfg);
++ if (IS_ACX100(adev))
++ clt->rate_100 = acx_bitpos2rate100[lowest_bit(clt->rate_cfg)];
++
++ clt->fallback_count = clt->stepup_count = 0;
++ clt->ignore_count = 16;
++
++ tx = acx_l_alloc_tx(adev);
++ if (!tx)
++ goto ok;
++ head = acx_l_get_txbuf(adev, tx);
++ if (!head) {
++ acx_l_dealloc_tx(adev, tx);
++ goto ok;
++ }
++ body = (void*)(head + 1);
++
++ head->fc = WF_FSTYPE_REASSOCRESPi;
++ head->dur = req->hdr->dur;
++ MAC_COPY(head->da, da);
++ MAC_COPY(head->sa, adev->dev_addr);
++ MAC_COPY(head->bssid, bssid);
++ head->seq = req->hdr->seq;
++
++ /* IEs: 1. caps */
++ body->cap_info = host2ieee16(adev->capabilities);
++ /* 2. status code */
++ body->status = host2ieee16(0);
++ /* 3. AID */
++ body->aid = host2ieee16(clt->aid);
++ /* 4. supp rates */
++ p = wlan_fill_ie_rates((u8*)&body->rates, adev->rate_supported_len,
++ adev->rate_supported);
++ /* 5. ext supp rates */
++ p = wlan_fill_ie_rates_ext(p, adev->rate_supported_len,
++ adev->rate_supported);
++
++ acx_l_tx_data(adev, tx, p - (u8*)head);
++ok:
++ FN_EXIT1(OK);
++ return OK;
++bad:
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***********************************************************************
++** acx_l_process_disassoc_from_sta
++*/
++static void
++acx_l_process_disassoc_from_sta(acx_device_t *adev, const wlan_fr_disassoc_t *req)
++{
++ const u8 *ta;
++ client_t *clt;
++
++ FN_ENTER;
++
++ ta = req->hdr->a2;
++ clt = acx_l_sta_list_get(adev, ta);
++ if (!clt)
++ goto end;
++
++ if (clt->used != CLIENT_ASSOCIATED_3
++ && clt->used != CLIENT_AUTHENTICATED_2) {
++ /* it's disassociating, but it's
++ ** not even authenticated! Let it know that */
++ acxlog_mac(L_ASSOC|L_XFER, "peer ", ta, "has sent disassoc "
++ "req but it is not even auth'ed! sending deauth\n");
++ acx_l_transmit_deauthen(adev, ta,
++ WLAN_MGMT_REASON_CLASS2_NONAUTH);
++ clt->used = CLIENT_EXIST_1;
++ } else {
++ /* mark it as auth'ed only */
++ clt->used = CLIENT_AUTHENTICATED_2;
++ }
++end:
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_l_process_deauthen_from_sta
++*/
++static void
++acx_l_process_deauth_from_sta(acx_device_t *adev, const wlan_fr_deauthen_t *req)
++{
++ const wlan_hdr_t *hdr;
++ client_t *client;
++
++ FN_ENTER;
++
++ hdr = req->hdr;
++
++ if (acx_debug & L_ASSOC) {
++ acx_print_mac("got deauth from sta:", hdr->a2, " ");
++ acx_print_mac("a1:", hdr->a1, " ");
++ acx_print_mac("a3:", hdr->a3, " ");
++ acx_print_mac("adev->addr:", adev->dev_addr, " ");
++ acx_print_mac("adev->bssid:", adev->bssid, "\n");
++ }
++
++ if (!mac_is_equal(adev->dev_addr, hdr->a1)) {
++ goto end;
++ }
++
++ client = acx_l_sta_list_get(adev, hdr->a2);
++ if (!client) {
++ goto end;
++ }
++ client->used = CLIENT_EXIST_1;
++end:
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_l_process_disassoc_from_ap
++*/
++static void
++acx_l_process_disassoc_from_ap(acx_device_t *adev, const wlan_fr_disassoc_t *req)
++{
++ FN_ENTER;
++
++ if (!adev->ap_client) {
++ /* Hrm, we aren't assoc'ed yet anyhow... */
++ goto end;
++ }
++
++ printk("%s: got disassoc frame with reason %d (%s)\n",
++ adev->ndev->name, *req->reason,
++ acx_wlan_reason_str(*req->reason));
++
++ if (mac_is_equal(adev->dev_addr, req->hdr->a1)) {
++ acx_l_transmit_deauthen(adev, adev->bssid,
++ WLAN_MGMT_REASON_DEAUTH_LEAVING);
++ SET_BIT(adev->set_mask, GETSET_RESCAN);
++ acx_schedule_task(adev, ACX_AFTER_IRQ_UPDATE_CARD_CFG);
++ }
++end:
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_l_process_deauth_from_ap
++*/
++static void
++acx_l_process_deauth_from_ap(acx_device_t *adev, const wlan_fr_deauthen_t *req)
++{
++ FN_ENTER;
++
++ if (!adev->ap_client) {
++ /* Hrm, we aren't assoc'ed yet anyhow... */
++ goto end;
++ }
++
++ printk("%s: got deauth frame with reason %d (%s)\n",
++ adev->ndev->name, *req->reason,
++ acx_wlan_reason_str(*req->reason));
++
++ /* Chk: is ta verified to be from our AP? */
++ if (mac_is_equal(adev->dev_addr, req->hdr->a1)) {
++ log(L_DEBUG, "AP sent us deauth packet\n");
++ SET_BIT(adev->set_mask, GETSET_RESCAN);
++ acx_schedule_task(adev, ACX_AFTER_IRQ_UPDATE_CARD_CFG);
++ }
++end:
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_l_rx
++**
++** The end of the Rx path. Pulls data from a rxhostdesc into a socket
++** buffer and feeds it to the network stack via netif_rx().
++*/
++static void
++acx_l_rx(acx_device_t *adev, rxbuffer_t *rxbuf)
++{
++ FN_ENTER;
++ if (likely(adev->dev_state_mask & ACX_STATE_IFACE_UP)) {
++ struct sk_buff *skb;
++ skb = acx_rxbuf_to_ether(adev, rxbuf);
++ if (likely(skb)) {
++ netif_rx(skb);
++ adev->ndev->last_rx = jiffies;
++ adev->stats.rx_packets++;
++ adev->stats.rx_bytes += skb->len;
++ }
++ }
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_l_process_data_frame_master
++*/
++static int
++acx_l_process_data_frame_master(acx_device_t *adev, rxbuffer_t *rxbuf)
++{
++ struct wlan_hdr *hdr;
++ struct tx *tx;
++ void *txbuf;
++ int len;
++ int result = NOT_OK;
++
++ FN_ENTER;
++
++ hdr = acx_get_wlan_hdr(adev, rxbuf);
++
++ switch (WF_FC_FROMTODSi & hdr->fc) {
++ case 0:
++ case WF_FC_FROMDSi:
++ log(L_DEBUG, "ap->sta or adhoc->adhoc data frame ignored\n");
++ goto done;
++ case WF_FC_TODSi:
++ break;
++ default: /* WF_FC_FROMTODSi */
++ log(L_DEBUG, "wds data frame ignored (TODO)\n");
++ goto done;
++ }
++
++ /* check if it is our BSSID, if not, leave */
++ if (!mac_is_equal(adev->bssid, hdr->a1)) {
++ goto done;
++ }
++
++ if (mac_is_equal(adev->dev_addr, hdr->a3)) {
++ /* this one is for us */
++ acx_l_rx(adev, rxbuf);
++ } else {
++ if (mac_is_bcast(hdr->a3)) {
++ /* this one is bcast, rx it too */
++ acx_l_rx(adev, rxbuf);
++ }
++ tx = acx_l_alloc_tx(adev);
++ if (!tx) {
++ goto fail;
++ }
++ /* repackage, tx, and hope it someday reaches its destination */
++ /* order is important, we do it in-place */
++ MAC_COPY(hdr->a1, hdr->a3);
++ MAC_COPY(hdr->a3, hdr->a2);
++ MAC_COPY(hdr->a2, adev->bssid);
++ /* To_DS = 0, From_DS = 1 */
++ hdr->fc = WF_FC_FROMDSi + WF_FTYPE_DATAi;
++
++ txbuf = acx_l_get_txbuf(adev, tx);
++ if (txbuf) {
++ len = RXBUF_BYTES_RCVD(adev, rxbuf);
++ memcpy(txbuf, hdr, len);
++ acx_l_tx_data(adev, tx, len);
++ } else {
++ acx_l_dealloc_tx(adev, tx);
++ }
++ }
++done:
++ result = OK;
++fail:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_l_process_data_frame_client
++*/
++static int
++acx_l_process_data_frame_client(acx_device_t *adev, rxbuffer_t *rxbuf)
++{
++ const u8 *da, *bssid;
++ const wlan_hdr_t *hdr;
++ struct net_device *ndev = adev->ndev;
++ int result = NOT_OK;
++
++ FN_ENTER;
++
++ if (ACX_STATUS_4_ASSOCIATED != adev->status)
++ goto drop;
++
++ hdr = acx_get_wlan_hdr(adev, rxbuf);
++
++ switch (WF_FC_FROMTODSi & hdr->fc) {
++ case 0:
++ if (adev->mode != ACX_MODE_0_ADHOC) {
++ log(L_DEBUG, "adhoc->adhoc data frame ignored\n");
++ goto drop;
++ }
++ bssid = hdr->a3;
++ break;
++ case WF_FC_FROMDSi:
++ if (adev->mode != ACX_MODE_2_STA) {
++ log(L_DEBUG, "ap->sta data frame ignored\n");
++ goto drop;
++ }
++ bssid = hdr->a2;
++ break;
++ case WF_FC_TODSi:
++ log(L_DEBUG, "sta->ap data frame ignored\n");
++ goto drop;
++ default: /* WF_FC_FROMTODSi: wds->wds */
++ log(L_DEBUG, "wds data frame ignored (todo)\n");
++ goto drop;
++ }
++
++ da = hdr->a1;
++
++ if (unlikely(acx_debug & L_DEBUG)) {
++ acx_print_mac("rx: da=", da, "");
++ acx_print_mac(" bssid=", bssid, "");
++ acx_print_mac(" adev->bssid=", adev->bssid, "");
++ acx_print_mac(" adev->addr=", adev->dev_addr, "\n");
++ }
++
++ /* promiscuous mode --> receive all packets */
++ if (unlikely(ndev->flags & IFF_PROMISC))
++ goto process;
++
++ /* FIRST, check if it is our BSSID */
++ if (!mac_is_equal(adev->bssid, bssid)) {
++ /* is not our BSSID, so bail out */
++ goto drop;
++ }
++
++ /* then, check if it is our address */
++ if (mac_is_equal(adev->dev_addr, da)) {
++ goto process;
++ }
++
++ /* then, check if it is broadcast */
++ if (mac_is_bcast(da)) {
++ goto process;
++ }
++
++ if (mac_is_mcast(da)) {
++ /* unconditionally receive all multicasts */
++ if (ndev->flags & IFF_ALLMULTI)
++ goto process;
++
++ /* FIXME: need to check against the list of
++ * multicast addresses that are configured
++ * for the interface (ifconfig) */
++ log(L_XFER, "FIXME: multicast packet, need to check "
++ "against a list of multicast addresses "
++ "(to be created!); accepting packet for now\n");
++ /* for now, just accept it here */
++ goto process;
++ }
++
++ log(L_DEBUG, "rx: foreign packet, dropping\n");
++ goto drop;
++process:
++ /* receive packet */
++ acx_l_rx(adev, rxbuf);
++
++ result = OK;
++drop:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_l_process_mgmt_frame
++**
++** Theory of operation: mgmt packet gets parsed (to make it easy
++** to access variable-sized IEs), results stored in 'parsed'.
++** Then we react to the packet.
++*/
++typedef union parsed_mgmt_req {
++ wlan_fr_mgmt_t mgmt;
++ wlan_fr_assocreq_t assocreq;
++ wlan_fr_reassocreq_t reassocreq;
++ wlan_fr_assocresp_t assocresp;
++ wlan_fr_reassocresp_t reassocresp;
++ wlan_fr_beacon_t beacon;
++ wlan_fr_disassoc_t disassoc;
++ wlan_fr_authen_t authen;
++ wlan_fr_deauthen_t deauthen;
++ wlan_fr_proberesp_t proberesp;
++} parsed_mgmt_req_t;
++
++void BUG_excessive_stack_usage(void);
++
++static int
++acx_l_process_mgmt_frame(acx_device_t *adev, rxbuffer_t *rxbuf)
++{
++ parsed_mgmt_req_t parsed; /* takes ~100 bytes of stack */
++ wlan_hdr_t *hdr;
++ int adhoc, sta_scan, sta, ap;
++ int len;
++
++ if (sizeof(parsed) > 256)
++ BUG_excessive_stack_usage();
++
++ FN_ENTER;
++
++ hdr = acx_get_wlan_hdr(adev, rxbuf);
++
++ /* Management frames never have these set */
++ if (WF_FC_FROMTODSi & hdr->fc) {
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++ }
++
++ len = RXBUF_BYTES_RCVD(adev, rxbuf);
++ if (WF_FC_ISWEPi & hdr->fc)
++ len -= 0x10;
++
++ adhoc = (adev->mode == ACX_MODE_0_ADHOC);
++ sta_scan = ((adev->mode == ACX_MODE_2_STA)
++ && (adev->status != ACX_STATUS_4_ASSOCIATED));
++ sta = ((adev->mode == ACX_MODE_2_STA)
++ && (adev->status == ACX_STATUS_4_ASSOCIATED));
++ ap = (adev->mode == ACX_MODE_3_AP);
++
++ switch (WF_FC_FSTYPEi & hdr->fc) {
++ /* beacons first, for speed */
++ case WF_FSTYPE_BEACONi:
++ memset(&parsed.beacon, 0, sizeof(parsed.beacon));
++ parsed.beacon.hdr = hdr;
++ parsed.beacon.len = len;
++ if (acx_debug & L_DATA) {
++ printk("beacon len:%d fc:%04X dur:%04X seq:%04X",
++ len, hdr->fc, hdr->dur, hdr->seq);
++ acx_print_mac(" a1:", hdr->a1, "");
++ acx_print_mac(" a2:", hdr->a2, "");
++ acx_print_mac(" a3:", hdr->a3, "\n");
++ }
++ wlan_mgmt_decode_beacon(&parsed.beacon);
++ /* beacon and probe response are very similar, so... */
++ acx_l_process_probe_response(adev, &parsed.beacon, rxbuf);
++ break;
++ case WF_FSTYPE_ASSOCREQi:
++ if (!ap)
++ break;
++ memset(&parsed.assocreq, 0, sizeof(parsed.assocreq));
++ parsed.assocreq.hdr = hdr;
++ parsed.assocreq.len = len;
++ wlan_mgmt_decode_assocreq(&parsed.assocreq);
++ if (mac_is_equal(hdr->a1, adev->bssid)
++ && mac_is_equal(hdr->a3, adev->bssid)) {
++ acx_l_transmit_assocresp(adev, &parsed.assocreq);
++ }
++ break;
++ case WF_FSTYPE_REASSOCREQi:
++ if (!ap)
++ break;
++ memset(&parsed.assocreq, 0, sizeof(parsed.assocreq));
++ parsed.assocreq.hdr = hdr;
++ parsed.assocreq.len = len;
++ wlan_mgmt_decode_assocreq(&parsed.assocreq);
++ /* reassocreq and assocreq are equivalent */
++ acx_l_transmit_reassocresp(adev, &parsed.reassocreq);
++ break;
++ case WF_FSTYPE_ASSOCRESPi:
++ if (!sta_scan)
++ break;
++ memset(&parsed.assocresp, 0, sizeof(parsed.assocresp));
++ parsed.assocresp.hdr = hdr;
++ parsed.assocresp.len = len;
++ wlan_mgmt_decode_assocresp(&parsed.assocresp);
++ acx_l_process_assocresp(adev, &parsed.assocresp);
++ break;
++ case WF_FSTYPE_REASSOCRESPi:
++ if (!sta_scan)
++ break;
++ memset(&parsed.assocresp, 0, sizeof(parsed.assocresp));
++ parsed.assocresp.hdr = hdr;
++ parsed.assocresp.len = len;
++ wlan_mgmt_decode_assocresp(&parsed.assocresp);
++ acx_l_process_reassocresp(adev, &parsed.reassocresp);
++ break;
++ case WF_FSTYPE_PROBEREQi:
++ if (ap || adhoc) {
++ /* FIXME: since we're supposed to be an AP,
++ ** we need to return a Probe Response packet.
++ ** Currently firmware is doing it for us,
++ ** but firmware is buggy! See comment elsewhere --vda */
++ }
++ break;
++ case WF_FSTYPE_PROBERESPi:
++ memset(&parsed.proberesp, 0, sizeof(parsed.proberesp));
++ parsed.proberesp.hdr = hdr;
++ parsed.proberesp.len = len;
++ wlan_mgmt_decode_proberesp(&parsed.proberesp);
++ acx_l_process_probe_response(adev, &parsed.proberesp, rxbuf);
++ break;
++ case 6:
++ case 7:
++ /* exit */
++ break;
++ case WF_FSTYPE_ATIMi:
++ /* exit */
++ break;
++ case WF_FSTYPE_DISASSOCi:
++ if (!sta && !ap)
++ break;
++ memset(&parsed.disassoc, 0, sizeof(parsed.disassoc));
++ parsed.disassoc.hdr = hdr;
++ parsed.disassoc.len = len;
++ wlan_mgmt_decode_disassoc(&parsed.disassoc);
++ if (sta)
++ acx_l_process_disassoc_from_ap(adev, &parsed.disassoc);
++ else
++ acx_l_process_disassoc_from_sta(adev, &parsed.disassoc);
++ break;
++ case WF_FSTYPE_AUTHENi:
++ if (!sta_scan && !ap)
++ break;
++ memset(&parsed.authen, 0, sizeof(parsed.authen));
++ parsed.authen.hdr = hdr;
++ parsed.authen.len = len;
++ wlan_mgmt_decode_authen(&parsed.authen);
++ acx_l_process_authen(adev, &parsed.authen);
++ break;
++ case WF_FSTYPE_DEAUTHENi:
++ if (!sta && !ap)
++ break;
++ memset(&parsed.deauthen, 0, sizeof(parsed.deauthen));
++ parsed.deauthen.hdr = hdr;
++ parsed.deauthen.len = len;
++ wlan_mgmt_decode_deauthen(&parsed.deauthen);
++ if (sta)
++ acx_l_process_deauth_from_ap(adev, &parsed.deauthen);
++ else
++ acx_l_process_deauth_from_sta(adev, &parsed.deauthen);
++ break;
++ }
++
++ FN_EXIT1(OK);
++ return OK;
++}
++
++
++#ifdef UNUSED
++/***********************************************************************
++** acx_process_class_frame
++**
++** Called from IRQ context only
++*/
++static int
++acx_process_class_frame(acx_device_t *adev, rxbuffer_t *rxbuf, int vala)
++{
++ return OK;
++}
++#endif
++
++
++/***********************************************************************
++** acx_l_process_NULL_frame
++*/
++#ifdef BOGUS_ITS_NOT_A_NULL_FRAME_HANDLER_AT_ALL
++static int
++acx_l_process_NULL_frame(acx_device_t *adev, rxbuffer_t *rxbuf, int vala)
++{
++ const signed char *esi;
++ const u8 *ebx;
++ const wlan_hdr_t *hdr;
++ const client_t *client;
++ int result = NOT_OK;
++
++ hdr = acx_get_wlan_hdr(adev, rxbuf);
++
++ switch (WF_FC_FROMTODSi & hdr->fc) {
++ case 0:
++ esi = hdr->a1;
++ ebx = hdr->a2;
++ break;
++ case WF_FC_FROMDSi:
++ esi = hdr->a1;
++ ebx = hdr->a3;
++ break;
++ case WF_FC_TODSi:
++ esi = hdr->a1;
++ ebx = hdr->a2;
++ break;
++ default: /* WF_FC_FROMTODSi */
++ esi = hdr->a1; /* added by me! --vda */
++ ebx = hdr->a2;
++ }
++
++ if (esi[0x0] < 0) {
++ result = OK;
++ goto done;
++ }
++
++ client = acx_l_sta_list_get(adev, ebx);
++ if (client)
++ result = NOT_OK;
++ else {
++#ifdef IS_IT_BROKEN
++ log(L_DEBUG|L_XFER, "<transmit_deauth 7>\n");
++ acx_l_transmit_deauthen(adev, ebx,
++ WLAN_MGMT_REASON_CLASS2_NONAUTH);
++#else
++ log(L_DEBUG, "received NULL frame from unknown client! "
++ "We really shouldn't send deauthen here, right?\n");
++#endif
++ result = OK;
++ }
++done:
++ return result;
++}
++#endif
++
++
++/***********************************************************************
++** acx_l_process_probe_response
++*/
++static int
++acx_l_process_probe_response(acx_device_t *adev, wlan_fr_proberesp_t *req,
++ const rxbuffer_t *rxbuf)
++{
++ struct client *bss;
++ wlan_hdr_t *hdr;
++
++ FN_ENTER;
++
++ hdr = req->hdr;
++
++ if (mac_is_equal(hdr->a3, adev->dev_addr)) {
++ log(L_ASSOC, "huh, scan found our own MAC!?\n");
++ goto ok; /* just skip this one silently */
++ }
++
++ bss = acx_l_sta_list_get_or_add(adev, hdr->a2);
++
++ /* NB: be careful modifying bss data! It may be one
++ ** of the already known clients (like our AP if we are a STA)
++ ** Thus do not blindly modify e.g. current ratemask! */
++
++ if (STA_LIST_ADD_CAN_FAIL && !bss) {
++ /* uh oh, we found more sites/stations than we can handle with
++ * our current setup: pull the emergency brake and stop scanning! */
++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_STOP_SCAN);
++ /* TODO: a nice comment what below call achieves --vda */
++ acx_set_status(adev, ACX_STATUS_2_WAIT_AUTH);
++ goto ok;
++ }
++ /* NB: get_or_add already filled bss->address = hdr->a2 */
++ MAC_COPY(bss->bssid, hdr->a3);
++
++ /* copy the ESSID element */
++ if (req->ssid && req->ssid->len <= IW_ESSID_MAX_SIZE) {
++ bss->essid_len = req->ssid->len;
++ memcpy(bss->essid, req->ssid->ssid, req->ssid->len);
++ bss->essid[req->ssid->len] = '\0';
++ } else {
++ /* Either no ESSID IE or oversized one */
++ printk("%s: received packet has bogus ESSID\n",
++ adev->ndev->name);
++ }
++
++ if (req->ds_parms)
++ bss->channel = req->ds_parms->curr_ch;
++ if (req->cap_info)
++ bss->cap_info = ieee2host16(*req->cap_info);
++
++ bss->sir = acx_signal_to_winlevel(rxbuf->phy_level);
++ bss->snr = acx_signal_to_winlevel(rxbuf->phy_snr);
++
++ bss->rate_cap = 0; /* operational mask */
++ bss->rate_bas = 0; /* basic mask */
++ if (req->supp_rates)
++ add_bits_to_ratemasks(req->supp_rates->rates,
++ req->supp_rates->len, &bss->rate_bas, &bss->rate_cap);
++ if (req->ext_rates)
++ add_bits_to_ratemasks(req->ext_rates->rates,
++ req->ext_rates->len, &bss->rate_bas, &bss->rate_cap);
++ /* Fix up any possible bogosity - code elsewhere
++ * is not expecting empty masks */
++ if (!bss->rate_cap)
++ bss->rate_cap = adev->rate_basic;
++ if (!bss->rate_bas)
++ bss->rate_bas = 1 << lowest_bit(bss->rate_cap);
++ if (!bss->rate_cur)
++ bss->rate_cur = 1 << lowest_bit(bss->rate_bas);
++
++ /* People moan about this being too noisy at L_ASSOC */
++ log(L_DEBUG,
++ "found %s: ESSID=\"%s\" ch=%d "
++ "BSSID="MACSTR" caps=0x%04X SIR=%d SNR=%d\n",
++ (bss->cap_info & WF_MGMT_CAP_IBSS) ? "Ad-Hoc peer" : "AP",
++ bss->essid, bss->channel, MAC(bss->bssid), bss->cap_info,
++ bss->sir, bss->snr);
++ok:
++ FN_EXIT0;
++ return OK;
++}
++
++
++/***********************************************************************
++** acx_l_process_assocresp
++*/
++static int
++acx_l_process_assocresp(acx_device_t *adev, const wlan_fr_assocresp_t *req)
++{
++ const wlan_hdr_t *hdr;
++ int res = OK;
++
++ FN_ENTER;
++
++ hdr = req->hdr;
++
++ if ((ACX_MODE_2_STA == adev->mode)
++ && mac_is_equal(adev->dev_addr, hdr->a1)) {
++ u16 st = ieee2host16(*(req->status));
++ if (WLAN_MGMT_STATUS_SUCCESS == st) {
++ adev->aid = ieee2host16(*(req->aid));
++ /* tell the card we are associated when
++ ** we are out of interrupt context */
++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_ASSOCIATE);
++ } else {
++
++ /* TODO: we shall delete peer from sta_list, and try
++ ** other candidates... */
++
++ printk("%s: association FAILED: peer sent "
++ "Status Code %d (%s)\n",
++ adev->ndev->name, st, get_status_string(st));
++ res = NOT_OK;
++ }
++ }
++
++ FN_EXIT1(res);
++ return res;
++}
++
++
++/***********************************************************************
++** acx_l_process_reassocresp
++*/
++static int
++acx_l_process_reassocresp(acx_device_t *adev, const wlan_fr_reassocresp_t *req)
++{
++ const wlan_hdr_t *hdr;
++ int result = NOT_OK;
++ u16 st;
++
++ FN_ENTER;
++
++ hdr = req->hdr;
++
++ if (!mac_is_equal(adev->dev_addr, hdr->a1)) {
++ goto end;
++ }
++ st = ieee2host16(*(req->status));
++ if (st == WLAN_MGMT_STATUS_SUCCESS) {
++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED);
++ result = OK;
++ } else {
++ printk("%s: reassociation FAILED: peer sent "
++ "response code %d (%s)\n",
++ adev->ndev->name, st, get_status_string(st));
++ }
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_l_process_authen
++**
++** Called only in STA_SCAN or AP mode
++*/
++static int
++acx_l_process_authen(acx_device_t *adev, const wlan_fr_authen_t *req)
++{
++ const wlan_hdr_t *hdr;
++ client_t *clt;
++ wlan_ie_challenge_t *chal;
++ u16 alg, seq, status;
++ int ap, result;
++
++ FN_ENTER;
++
++ hdr = req->hdr;
++
++ if (acx_debug & L_ASSOC) {
++ acx_print_mac("AUTHEN adev->addr=", adev->dev_addr, " ");
++ acx_print_mac("a1=", hdr->a1, " ");
++ acx_print_mac("a2=", hdr->a2, " ");
++ acx_print_mac("a3=", hdr->a3, " ");
++ acx_print_mac("adev->bssid=", adev->bssid, "\n");
++ }
++
++ if (!mac_is_equal(adev->dev_addr, hdr->a1)
++ || !mac_is_equal(adev->bssid, hdr->a3)) {
++ result = OK;
++ goto end;
++ }
++
++ alg = ieee2host16(*(req->auth_alg));
++ seq = ieee2host16(*(req->auth_seq));
++ status = ieee2host16(*(req->status));
++
++ log(L_ASSOC, "auth algorithm %d, auth sequence %d, status %d\n", alg, seq, status);
++
++ ap = (adev->mode == ACX_MODE_3_AP);
++
++ if (adev->auth_alg <= 1) {
++ if (adev->auth_alg != alg) {
++ log(L_ASSOC, "auth algorithm mismatch: "
++ "our:%d peer:%d\n", adev->auth_alg, alg);
++ result = NOT_OK;
++ goto end;
++ }
++ }
++ if (ap) {
++ clt = acx_l_sta_list_get_or_add(adev, hdr->a2);
++ if (STA_LIST_ADD_CAN_FAIL && !clt) {
++ log(L_ASSOC, "could not allocate room for client\n");
++ result = NOT_OK;
++ goto end;
++ }
++ } else {
++ clt = adev->ap_client;
++ if (!mac_is_equal(clt->address, hdr->a2)) {
++ printk("%s: malformed auth frame from AP?!\n",
++ adev->ndev->name);
++ result = NOT_OK;
++ goto end;
++ }
++ }
++
++ /* now check which step in the authentication sequence we are
++ * currently in, and act accordingly */
++ switch (seq) {
++ case 1:
++ if (!ap)
++ break;
++ acx_l_transmit_authen2(adev, req, clt);
++ break;
++ case 2:
++ if (ap)
++ break;
++ if (status == WLAN_MGMT_STATUS_SUCCESS) {
++ if (alg == WLAN_AUTH_ALG_OPENSYSTEM) {
++ acx_set_status(adev, ACX_STATUS_3_AUTHENTICATED);
++ acx_l_transmit_assoc_req(adev);
++ } else
++ if (alg == WLAN_AUTH_ALG_SHAREDKEY) {
++ acx_l_transmit_authen3(adev, req);
++ }
++ } else {
++ printk("%s: auth FAILED: peer sent "
++ "response code %d (%s), "
++ "still waiting for authentication\n",
++ adev->ndev->name,
++ status, get_status_string(status));
++ acx_set_status(adev, ACX_STATUS_2_WAIT_AUTH);
++ }
++ break;
++ case 3:
++ if (!ap)
++ break;
++ if ((clt->auth_alg != WLAN_AUTH_ALG_SHAREDKEY)
++ || (alg != WLAN_AUTH_ALG_SHAREDKEY)
++ || (clt->auth_step != 2))
++ break;
++ chal = req->challenge;
++ if (!chal
++ || memcmp(chal->challenge, clt->challenge_text, WLAN_CHALLENGE_LEN)
++ || (chal->eid != WLAN_EID_CHALLENGE)
++ || (chal->len != WLAN_CHALLENGE_LEN)
++ )
++ break;
++ acx_l_transmit_authen4(adev, req);
++ MAC_COPY(clt->address, hdr->a2);
++ clt->used = CLIENT_AUTHENTICATED_2;
++ clt->auth_step = 4;
++ clt->seq = ieee2host16(hdr->seq);
++ break;
++ case 4:
++ if (ap)
++ break;
++ /* ok, we're through: we're authenticated. Woohoo!! */
++ acx_set_status(adev, ACX_STATUS_3_AUTHENTICATED);
++ log(L_ASSOC, "Authenticated!\n");
++ /* now that we're authenticated, request association */
++ acx_l_transmit_assoc_req(adev);
++ break;
++ }
++ result = OK;
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_gen_challenge
++*/
++static inline void
++acx_gen_challenge(wlan_ie_challenge_t* d)
++{
++ FN_ENTER;
++ d->eid = WLAN_EID_CHALLENGE;
++ d->len = WLAN_CHALLENGE_LEN;
++ get_random_bytes(d->challenge, WLAN_CHALLENGE_LEN);
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_l_transmit_deauthen
++*/
++static int
++acx_l_transmit_deauthen(acx_device_t *adev, const u8 *addr, u16 reason)
++{
++ struct tx *tx;
++ struct wlan_hdr_mgmt *head;
++ struct deauthen_frame_body *body;
++
++ FN_ENTER;
++
++ tx = acx_l_alloc_tx(adev);
++ if (!tx)
++ goto bad;
++ head = acx_l_get_txbuf(adev, tx);
++ if (!head) {
++ acx_l_dealloc_tx(adev, tx);
++ goto bad;
++ }
++ body = (void*)(head + 1);
++
++ head->fc = (WF_FTYPE_MGMTi | WF_FSTYPE_DEAUTHENi);
++ head->dur = 0;
++ MAC_COPY(head->da, addr);
++ MAC_COPY(head->sa, adev->dev_addr);
++ MAC_COPY(head->bssid, adev->bssid);
++ head->seq = 0;
++
++ log(L_DEBUG|L_ASSOC|L_XFER,
++ "sending deauthen to "MACSTR" for %d\n",
++ MAC(addr), reason);
++
++ body->reason = host2ieee16(reason);
++
++ /* body is fixed size here, but beware of cutting-and-pasting this -
++ ** do not use sizeof(*body) for variable sized mgmt packets! */
++ acx_l_tx_data(adev, tx, WLAN_HDR_A3_LEN + sizeof(*body));
++
++ FN_EXIT1(OK);
++ return OK;
++bad:
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***********************************************************************
++** acx_l_transmit_authen1
++*/
++static int
++acx_l_transmit_authen1(acx_device_t *adev)
++{
++ struct tx *tx;
++ struct wlan_hdr_mgmt *head;
++ struct auth_frame_body *body;
++
++ FN_ENTER;
++
++ log(L_ASSOC, "sending authentication1 request (auth algo %d), "
++ "awaiting response\n", adev->auth_alg);
++
++ tx = acx_l_alloc_tx(adev);
++ if (!tx)
++ goto bad;
++ head = acx_l_get_txbuf(adev, tx);
++ if (!head) {
++ acx_l_dealloc_tx(adev, tx);
++ goto bad;
++ }
++ body = (void*)(head + 1);
++
++ head->fc = WF_FSTYPE_AUTHENi;
++ /* duration should be 0 instead of 0x8000 to have
++ * the firmware calculate the value, right? */
++ head->dur = 0;
++ MAC_COPY(head->da, adev->bssid);
++ MAC_COPY(head->sa, adev->dev_addr);
++ MAC_COPY(head->bssid, adev->bssid);
++ head->seq = 0;
++
++ body->auth_alg = host2ieee16(adev->auth_alg);
++ body->auth_seq = host2ieee16(1);
++ body->status = host2ieee16(0);
++
++ acx_l_tx_data(adev, tx, WLAN_HDR_A3_LEN + 2 + 2 + 2);
++
++ FN_EXIT1(OK);
++ return OK;
++bad:
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***********************************************************************
++** acx_l_transmit_authen2
++*/
++static int
++acx_l_transmit_authen2(acx_device_t *adev, const wlan_fr_authen_t *req,
++ client_t *clt)
++{
++ struct tx *tx;
++ struct wlan_hdr_mgmt *head;
++ struct auth_frame_body *body;
++ unsigned int packet_len;
++
++ FN_ENTER;
++
++ if (!clt)
++ goto ok;
++
++ MAC_COPY(clt->address, req->hdr->a2);
++#ifdef UNUSED
++ clt->ps = ((WF_FC_PWRMGTi & req->hdr->fc) != 0);
++#endif
++ clt->auth_alg = ieee2host16(*(req->auth_alg));
++ clt->auth_step = 2;
++ clt->seq = ieee2host16(req->hdr->seq);
++
++ tx = acx_l_alloc_tx(adev);
++ if (!tx)
++ goto bad;
++ head = acx_l_get_txbuf(adev, tx);
++ if (!head) {
++ acx_l_dealloc_tx(adev, tx);
++ goto bad;
++ }
++ body = (void*)(head + 1);
++
++ head->fc = WF_FSTYPE_AUTHENi;
++ head->dur = 0 /* req->hdr->dur */;
++ MAC_COPY(head->da, req->hdr->a2);
++ MAC_COPY(head->sa, adev->dev_addr);
++ MAC_COPY(head->bssid, req->hdr->a3);
++ head->seq = 0 /* req->hdr->seq */;
++
++ /* already in IEEE format, no endianness conversion */
++ body->auth_alg = *(req->auth_alg);
++ body->auth_seq = host2ieee16(2);
++ body->status = host2ieee16(0);
++
++ packet_len = WLAN_HDR_A3_LEN + 2 + 2 + 2;
++ if (ieee2host16(*(req->auth_alg)) == WLAN_AUTH_ALG_OPENSYSTEM) {
++ clt->used = CLIENT_AUTHENTICATED_2;
++ } else { /* shared key */
++ acx_gen_challenge(&body->challenge);
++ memcpy(&clt->challenge_text, body->challenge.challenge, WLAN_CHALLENGE_LEN);
++ packet_len += 2 + 2 + 2 + 1+1+WLAN_CHALLENGE_LEN;
++ }
++
++ acxlog_mac(L_ASSOC|L_XFER,
++ "transmit_auth2: BSSID=", head->bssid, "\n");
++
++ acx_l_tx_data(adev, tx, packet_len);
++ok:
++ FN_EXIT1(OK);
++ return OK;
++bad:
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***********************************************************************
++** acx_l_transmit_authen3
++*/
++static int
++acx_l_transmit_authen3(acx_device_t *adev, const wlan_fr_authen_t *req)
++{
++ struct tx *tx;
++ struct wlan_hdr_mgmt *head;
++ struct auth_frame_body *body;
++ unsigned int packet_len;
++
++ FN_ENTER;
++
++ tx = acx_l_alloc_tx(adev);
++ if (!tx)
++ goto ok;
++ head = acx_l_get_txbuf(adev, tx);
++ if (!head) {
++ acx_l_dealloc_tx(adev, tx);
++ goto ok;
++ }
++ body = (void*)(head + 1);
++
++ /* add WF_FC_ISWEPi: auth step 3 needs to be encrypted */
++ head->fc = WF_FC_ISWEPi + WF_FSTYPE_AUTHENi;
++ /* FIXME: is this needed?? authen4 does it...
++ * I think it's even wrong since we shouldn't re-use old
++ * values but instead let the firmware calculate proper ones
++ head->dur = req->hdr->dur;
++ head->seq = req->hdr->seq;
++ */
++ MAC_COPY(head->da, adev->bssid);
++ MAC_COPY(head->sa, adev->dev_addr);
++ MAC_COPY(head->bssid, adev->bssid);
++
++ /* already in IEEE format, no endianness conversion */
++ body->auth_alg = *(req->auth_alg);
++ body->auth_seq = host2ieee16(3);
++ body->status = host2ieee16(0);
++ memcpy(&body->challenge, req->challenge, req->challenge->len + 2);
++ packet_len = WLAN_HDR_A3_LEN + 8 + req->challenge->len;
++
++ log(L_ASSOC|L_XFER, "transmit_authen3!\n");
++
++ acx_l_tx_data(adev, tx, packet_len);
++ok:
++ FN_EXIT1(OK);
++ return OK;
++}
++
++
++/***********************************************************************
++** acx_l_transmit_authen4
++*/
++static int
++acx_l_transmit_authen4(acx_device_t *adev, const wlan_fr_authen_t *req)
++{
++ struct tx *tx;
++ struct wlan_hdr_mgmt *head;
++ struct auth_frame_body *body;
++
++ FN_ENTER;
++
++ tx = acx_l_alloc_tx(adev);
++ if (!tx)
++ goto ok;
++ head = acx_l_get_txbuf(adev, tx);
++ if (!head) {
++ acx_l_dealloc_tx(adev, tx);
++ goto ok;
++ }
++ body = (void*)(head + 1);
++
++ head->fc = WF_FSTYPE_AUTHENi; /* 0xb0 */
++ head->dur = 0 /* req->hdr->dur */;
++ MAC_COPY(head->da, req->hdr->a2);
++ MAC_COPY(head->sa, adev->dev_addr);
++ MAC_COPY(head->bssid, req->hdr->a3);
++ head->seq = 0 /* req->hdr->seq */;
++
++ /* already in IEEE format, no endianness conversion */
++ body->auth_alg = *(req->auth_alg);
++ body->auth_seq = host2ieee16(4);
++ body->status = host2ieee16(0);
++
++ acx_l_tx_data(adev, tx, WLAN_HDR_A3_LEN + 2 + 2 + 2);
++ok:
++ FN_EXIT1(OK);
++ return OK;
++}
++
++
++/***********************************************************************
++** acx_l_transmit_assoc_req
++**
++** adev->ap_client is a current candidate AP here
++*/
++static int
++acx_l_transmit_assoc_req(acx_device_t *adev)
++{
++ struct tx *tx;
++ struct wlan_hdr_mgmt *head;
++ u8 *body, *p, *prate;
++ unsigned int packet_len;
++ u16 cap;
++
++ FN_ENTER;
++
++ log(L_ASSOC, "sending association request, "
++ "awaiting response. NOT ASSOCIATED YET\n");
++ tx = acx_l_alloc_tx(adev);
++ if (!tx)
++ goto bad;
++ head = acx_l_get_txbuf(adev, tx);
++ if (!head) {
++ acx_l_dealloc_tx(adev, tx);
++ goto bad;
++ }
++ body = (void*)(head + 1);
++
++ head->fc = WF_FSTYPE_ASSOCREQi;
++ head->dur = host2ieee16(0x8000);
++ MAC_COPY(head->da, adev->bssid);
++ MAC_COPY(head->sa, adev->dev_addr);
++ MAC_COPY(head->bssid, adev->bssid);
++ head->seq = 0;
++
++ p = body;
++ /* now start filling the AssocReq frame body */
++
++ /* since this assoc request will most likely only get
++ * sent in the STA to AP case (and not when Ad-Hoc IBSS),
++ * the cap combination indicated here will thus be
++ * WF_MGMT_CAP_ESSi *always* (no IBSS ever)
++ * The specs are more than non-obvious on all that:
++ *
++ * 802.11 7.3.1.4 Capability Information field
++ ** APs set the ESS subfield to 1 and the IBSS subfield to 0 within
++ ** Beacon or Probe Response management frames. STAs within an IBSS
++ ** set the ESS subfield to 0 and the IBSS subfield to 1 in transmitted
++ ** Beacon or Probe Response management frames
++ **
++ ** APs set the Privacy subfield to 1 within transmitted Beacon,
++ ** Probe Response, Association Response, and Reassociation Response
++ ** if WEP is required for all data type frames within the BSS.
++ ** STAs within an IBSS set the Privacy subfield to 1 in Beacon
++ ** or Probe Response management frames if WEP is required
++ ** for all data type frames within the IBSS */
++
++ /* note that returning 0 will be refused by several APs...
++ * (so this indicates that you're probably supposed to
++ * "confirm" the ESS mode) */
++ cap = WF_MGMT_CAP_ESSi;
++
++ /* this one used to be a check on wep_restricted,
++ * but more likely it's wep_enabled instead */
++ if (adev->wep_enabled)
++ SET_BIT(cap, WF_MGMT_CAP_PRIVACYi);
++
++ /* Probably we can just set these always, because our hw is
++ ** capable of shortpre and PBCC --vda */
++ /* only ask for short preamble if the peer station supports it */
++ if (adev->ap_client->cap_info & WF_MGMT_CAP_SHORT)
++ SET_BIT(cap, WF_MGMT_CAP_SHORTi);
++ /* only ask for PBCC support if the peer station supports it */
++ if (adev->ap_client->cap_info & WF_MGMT_CAP_PBCC)
++ SET_BIT(cap, WF_MGMT_CAP_PBCCi);
++
++ /* IEs: 1. caps */
++ *(u16*)p = cap; p += 2;
++ /* 2. listen interval */
++ *(u16*)p = host2ieee16(adev->listen_interval); p += 2;
++ /* 3. ESSID */
++ p = wlan_fill_ie_ssid(p,
++ strlen(adev->essid_for_assoc), adev->essid_for_assoc);
++ /* 4. supp rates */
++ prate = p;
++ p = wlan_fill_ie_rates(p,
++ adev->rate_supported_len, adev->rate_supported);
++ /* 5. ext supp rates */
++ p = wlan_fill_ie_rates_ext(p,
++ adev->rate_supported_len, adev->rate_supported);
++
++ if (acx_debug & L_DEBUG) {
++ printk("association: rates element\n");
++ acx_dump_bytes(prate, p - prate);
++ }
++
++ /* calculate lengths */
++ packet_len = WLAN_HDR_A3_LEN + (p - body);
++
++ log(L_ASSOC, "association: requesting caps 0x%04X, ESSID \"%s\"\n",
++ cap, adev->essid_for_assoc);
++
++ acx_l_tx_data(adev, tx, packet_len);
++ FN_EXIT1(OK);
++ return OK;
++bad:
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***********************************************************************
++** acx_l_transmit_disassoc
++**
++** FIXME: looks like incomplete implementation of a helper:
++** acx_l_transmit_disassoc(adev, clt) - kick this client (we're an AP)
++** acx_l_transmit_disassoc(adev, NULL) - leave BSSID (we're a STA)
++*/
++#ifdef BROKEN
++int
++acx_l_transmit_disassoc(acx_device_t *adev, client_t *clt)
++{
++ struct tx *tx;
++ struct wlan_hdr_mgmt *head;
++ struct disassoc_frame_body *body;
++
++ FN_ENTER;
++/* if (clt != NULL) { */
++ tx = acx_l_alloc_tx(adev);
++ if (!tx)
++ goto bad;
++ head = acx_l_get_txbuf(adev, tx);
++ if (!head) {
++ acx_l_dealloc_tx(adev, tx);
++ goto bad;
++ }
++ body = (void*)(head + 1);
++
++/* clt->used = CLIENT_AUTHENTICATED_2; - not (yet?) associated */
++
++ head->fc = WF_FSTYPE_DISASSOCi;
++ head->dur = 0;
++ /* huh? It muchly depends on whether we're STA or AP...
++ ** sta->ap: da=bssid, sa=own, bssid=bssid
++ ** ap->sta: da=sta, sa=bssid, bssid=bssid. FIXME! */
++ MAC_COPY(head->da, adev->bssid);
++ MAC_COPY(head->sa, adev->dev_addr);
++ MAC_COPY(head->bssid, adev->dev_addr);
++ head->seq = 0;
++
++ /* "Class 3 frame received from nonassociated station." */
++ body->reason = host2ieee16(7);
++
++ /* fixed size struct, ok to sizeof */
++ acx_l_tx_data(adev, tx, WLAN_HDR_A3_LEN + sizeof(*body));
++/* } */
++ FN_EXIT1(OK);
++ return OK;
++bad:
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++#endif
++
++
++/***********************************************************************
++** acx_s_complete_scan
++**
++** Called either from after_interrupt_task() if:
++** 1) there was Scan_Complete IRQ, or
++** 2) scanning expired in timer()
++** We need to decide which ESS or IBSS to join.
++** Iterates thru adev->sta_list:
++** if adev->ap is not bcast, will join only specified
++** ESS or IBSS with this bssid
++** checks peers' caps for ESS/IBSS bit
++** checks peers' SSID, allows exact match or hidden SSID
++** If station to join is chosen:
++** points adev->ap_client to the chosen struct client
++** sets adev->essid_for_assoc for future assoc attempt
++** Auth/assoc is not yet performed
++** Returns OK if there is no need to restart scan
++*/
++int
++acx_s_complete_scan(acx_device_t *adev)
++{
++ struct client *bss;
++ unsigned long flags;
++ u16 needed_cap;
++ int i;
++ int idx_found = -1;
++ int result = OK;
++
++ FN_ENTER;
++
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ needed_cap = WF_MGMT_CAP_IBSS; /* 2, we require Ad-Hoc */
++ break;
++ case ACX_MODE_2_STA:
++ needed_cap = WF_MGMT_CAP_ESS; /* 1, we require Managed */
++ break;
++ default:
++ printk("acx: driver bug: mode=%d in complete_scan()\n", adev->mode);
++ dump_stack();
++ goto end;
++ }
++
++ acx_lock(adev, flags);
++
++ /* TODO: sta_iterator hiding implementation would be nice here... */
++
++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
++ bss = &adev->sta_list[i];
++ if (!bss->used) continue;
++
++
++ log(L_ASSOC, "scan table: SSID=\"%s\" CH=%d SIR=%d SNR=%d\n",
++ bss->essid, bss->channel, bss->sir, bss->snr);
++
++ if (!mac_is_bcast(adev->ap))
++ if (!mac_is_equal(bss->bssid, adev->ap))
++ continue; /* keep looking */
++
++ /* broken peer with no mode flags set? */
++ if (unlikely(!(bss->cap_info & (WF_MGMT_CAP_ESS | WF_MGMT_CAP_IBSS)))) {
++ printk("%s: strange peer "MACSTR" found with "
++ "neither ESS (AP) nor IBSS (Ad-Hoc) "
++ "capability - skipped\n",
++ adev->ndev->name, MAC(bss->address));
++ continue;
++ }
++ log(L_ASSOC, "peer_cap 0x%04X, needed_cap 0x%04X\n",
++ bss->cap_info, needed_cap);
++
++ /* does peer station support what we need? */
++ if ((bss->cap_info & needed_cap) != needed_cap)
++ continue; /* keep looking */
++
++ /* strange peer with NO basic rates?! */
++ if (unlikely(!bss->rate_bas)) {
++ printk("%s: strange peer "MACSTR" with empty rate set "
++ "- skipped\n",
++ adev->ndev->name, MAC(bss->address));
++ continue;
++ }
++
++ /* do we support all basic rates of this peer? */
++ if ((bss->rate_bas & adev->rate_oper) != bss->rate_bas) {
++/* we probably need to have all rates as operational rates,
++ even in case of an 11M-only configuration */
++#ifdef THIS_IS_TROUBLESOME
++ printk("%s: peer "MACSTR": incompatible basic rates "
++ "(AP requests 0x%04X, we have 0x%04X) "
++ "- skipped\n",
++ adev->ndev->name, MAC(bss->address),
++ bss->rate_bas, adev->rate_oper);
++ continue;
++#else
++ printk("%s: peer "MACSTR": incompatible basic rates "
++ "(AP requests 0x%04X, we have 0x%04X). "
++ "Considering anyway...\n",
++ adev->ndev->name, MAC(bss->address),
++ bss->rate_bas, adev->rate_oper);
++#endif
++ }
++
++ if ( !(adev->reg_dom_chanmask & (1<<(bss->channel-1))) ) {
++ printk("%s: warning: peer "MACSTR" is on channel %d "
++ "outside of channel range of current "
++ "regulatory domain - couldn't join "
++ "even if other settings match. "
++ "You might want to adapt your config\n",
++ adev->ndev->name, MAC(bss->address),
++ bss->channel);
++ continue; /* keep looking */
++ }
++
++ if (!adev->essid_active || !strcmp(bss->essid, adev->essid)) {
++ log(L_ASSOC,
++ "found station with matching ESSID! ('%s' "
++ "station, '%s' config)\n",
++ bss->essid,
++ (adev->essid_active) ? adev->essid : "[any]");
++ /* TODO: continue looking for peer with better SNR */
++ bss->used = CLIENT_JOIN_CANDIDATE;
++ idx_found = i;
++
++ /* stop searching if this station is
++ * on the current channel, otherwise
++ * keep looking for an even better match */
++ if (bss->channel == adev->channel)
++ break;
++ } else
++ if (is_hidden_essid(bss->essid)) {
++ /* hmm, station with empty or single-space SSID:
++ * using hidden SSID broadcast?
++ */
++ /* This behaviour is broken: which AP from zillion
++ ** of APs with hidden SSID you'd try?
++ ** We should use Probe requests to get Probe responses
++ ** and check for real SSID (are those never hidden?) */
++ bss->used = CLIENT_JOIN_CANDIDATE;
++ if (idx_found == -1)
++ idx_found = i;
++ log(L_ASSOC, "found station with empty or "
++ "single-space (hidden) SSID, considering "
++ "for assoc attempt\n");
++ /* ...and keep looking for better matches */
++ } else {
++ log(L_ASSOC, "ESSID doesn't match! ('%s' "
++ "station, '%s' config)\n",
++ bss->essid,
++ (adev->essid_active) ? adev->essid : "[any]");
++ }
++ }
++
++ /* TODO: iterate thru join candidates instead */
++ /* TODO: rescan if not associated within some timeout */
++ if (idx_found != -1) {
++ char *essid_src;
++ size_t essid_len;
++
++ bss = &adev->sta_list[idx_found];
++ adev->ap_client = bss;
++
++ if (is_hidden_essid(bss->essid)) {
++ /* if the ESSID of the station we found is empty
++ * (no broadcast), then use user-configured ESSID
++ * instead */
++ essid_src = adev->essid;
++ essid_len = adev->essid_len;
++ } else {
++ essid_src = bss->essid;
++ essid_len = strlen(bss->essid);
++ }
++
++ acx_update_capabilities(adev);
++
++ memcpy(adev->essid_for_assoc, essid_src, essid_len);
++ adev->essid_for_assoc[essid_len] = '\0';
++ adev->channel = bss->channel;
++ MAC_COPY(adev->bssid, bss->bssid);
++
++ bss->rate_cfg = (bss->rate_cap & adev->rate_oper);
++ bss->rate_cur = 1 << lowest_bit(bss->rate_cfg);
++ bss->rate_100 = acx_rate111to100(bss->rate_cur);
++
++ acxlog_mac(L_ASSOC,
++ "matching station found: ", adev->bssid, ", joining\n");
++
++ /* TODO: do we need to switch to the peer's channel first? */
++
++ if (ACX_MODE_0_ADHOC == adev->mode) {
++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED);
++ } else {
++ acx_l_transmit_authen1(adev);
++ acx_set_status(adev, ACX_STATUS_2_WAIT_AUTH);
++ }
++ } else { /* idx_found == -1 */
++ /* uh oh, no station found in range */
++ if (ACX_MODE_0_ADHOC == adev->mode) {
++ printk("%s: no matching station found in range, "
++ "generating our own IBSS instead\n",
++ adev->ndev->name);
++ /* we do it the HostAP way: */
++ MAC_COPY(adev->bssid, adev->dev_addr);
++ adev->bssid[0] |= 0x02; /* 'local assigned addr' bit */
++ /* add IBSS bit to our caps... */
++ acx_update_capabilities(adev);
++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED);
++ /* In order to cmd_join be called below */
++ idx_found = 0;
++ } else {
++ /* we shall scan again, AP can be
++ ** just temporarily powered off */
++ log(L_ASSOC,
++ "no matching station found in range yet\n");
++ acx_set_status(adev, ACX_STATUS_1_SCANNING);
++ result = NOT_OK;
++ }
++ }
++
++ acx_unlock(adev, flags);
++
++ if (idx_found != -1) {
++ if (ACX_MODE_0_ADHOC == adev->mode) {
++ /* need to update channel in beacon template */
++ SET_BIT(adev->set_mask, SET_TEMPLATES);
++ if (ACX_STATE_IFACE_UP & adev->dev_state_mask)
++ acx_s_update_card_settings(adev);
++ }
++ /* Inform firmware on our decision to start or join BSS */
++ acx_s_cmd_join_bssid(adev, adev->bssid);
++ }
++
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_s_read_fw
++**
++** Loads a firmware image
++**
++** Returns:
++** 0 unable to load file
++** pointer to firmware success
++*/
++firmware_image_t*
++acx_s_read_fw(struct device *dev, const char *file, u32 *size)
++{
++ firmware_image_t *res;
++ const struct firmware *fw_entry;
++
++ res = NULL;
++ log(L_INIT, "requesting firmware image '%s'\n", file);
++ if (!request_firmware(&fw_entry, file, dev)) {
++ *size = 8;
++ if (fw_entry->size >= 8)
++ *size = 8 + le32_to_cpu(*(u32 *)(fw_entry->data + 4));
++ if (fw_entry->size != *size) {
++ printk("acx: firmware size does not match "
++ "firmware header: %d != %d, "
++ "aborting fw upload\n",
++ (int) fw_entry->size, (int) *size);
++ goto release_ret;
++ }
++ res = vmalloc(*size);
++ if (!res) {
++ printk("acx: no memory for firmware "
++ "(%u bytes)\n", *size);
++ goto release_ret;
++ }
++ memcpy(res, fw_entry->data, fw_entry->size);
++release_ret:
++ release_firmware(fw_entry);
++ return res;
++ }
++ printk("acx: firmware image '%s' was not provided. "
++ "Check your hotplug scripts\n", file);
++
++ /* checksum will be verified in write_fw, so don't bother here */
++ return res;
++}
++
++
++/***********************************************************************
++** acx_s_set_wepkey
++*/
++static void
++acx100_s_set_wepkey(acx_device_t *adev)
++{
++ ie_dot11WEPDefaultKey_t dk;
++ int i;
++
++ for (i = 0; i < DOT11_MAX_DEFAULT_WEP_KEYS; i++) {
++ if (adev->wep_keys[i].size != 0) {
++ log(L_INIT, "setting WEP key: %d with "
++ "total size: %d\n", i, (int) adev->wep_keys[i].size);
++ dk.action = 1;
++ dk.keySize = adev->wep_keys[i].size;
++ dk.defaultKeyNum = i;
++ memcpy(dk.key, adev->wep_keys[i].key, dk.keySize);
++ acx_s_configure(adev, &dk, ACX100_IE_DOT11_WEP_DEFAULT_KEY_WRITE);
++ }
++ }
++}
++
++static void
++acx111_s_set_wepkey(acx_device_t *adev)
++{
++ acx111WEPDefaultKey_t dk;
++ int i;
++
++ for (i = 0; i < DOT11_MAX_DEFAULT_WEP_KEYS; i++) {
++ if (adev->wep_keys[i].size != 0) {
++ log(L_INIT, "setting WEP key: %d with "
++ "total size: %d\n", i, (int) adev->wep_keys[i].size);
++ memset(&dk, 0, sizeof(dk));
++ dk.action = cpu_to_le16(1); /* "add key"; yes, that's a 16bit value */
++ dk.keySize = adev->wep_keys[i].size;
++
++ /* are these two lines necessary? */
++ dk.type = 0; /* default WEP key */
++ dk.index = 0; /* ignored when setting default key */
++
++ dk.defaultKeyNum = i;
++ memcpy(dk.key, adev->wep_keys[i].key, dk.keySize);
++ acx_s_issue_cmd(adev, ACX1xx_CMD_WEP_MGMT, &dk, sizeof(dk));
++ }
++ }
++}
++
++static void
++acx_s_set_wepkey(acx_device_t *adev)
++{
++ if (IS_ACX111(adev))
++ acx111_s_set_wepkey(adev);
++ else
++ acx100_s_set_wepkey(adev);
++}
++
++
++/***********************************************************************
++** acx100_s_init_wep
++**
++** FIXME: this should probably be moved into the new card settings
++** management, but since we're also modifying the memory map layout here
++** due to the WEP key space we want, we should take care...
++*/
++static int
++acx100_s_init_wep(acx_device_t *adev)
++{
++ acx100_ie_wep_options_t options;
++ ie_dot11WEPDefaultKeyID_t dk;
++ acx_ie_memmap_t pt;
++ int res = NOT_OK;
++
++ FN_ENTER;
++
++ if (OK != acx_s_interrogate(adev, &pt, ACX1xx_IE_MEMORY_MAP)) {
++ goto fail;
++ }
++
++ log(L_DEBUG, "CodeEnd:%X\n", pt.CodeEnd);
++
++ pt.WEPCacheStart = cpu_to_le32(le32_to_cpu(pt.CodeEnd) + 0x4);
++ pt.WEPCacheEnd = cpu_to_le32(le32_to_cpu(pt.CodeEnd) + 0x4);
++
++ if (OK != acx_s_configure(adev, &pt, ACX1xx_IE_MEMORY_MAP)) {
++ goto fail;
++ }
++
++ /* let's choose maximum setting: 4 default keys, plus 10 other keys: */
++ options.NumKeys = cpu_to_le16(DOT11_MAX_DEFAULT_WEP_KEYS + 10);
++ options.WEPOption = 0x00;
++
++ log(L_ASSOC, "%s: writing WEP options\n", __func__);
++ acx_s_configure(adev, &options, ACX100_IE_WEP_OPTIONS);
++
++ acx100_s_set_wepkey(adev);
++
++ if (adev->wep_keys[adev->wep_current_index].size != 0) {
++ log(L_ASSOC, "setting active default WEP key number: %d\n",
++ adev->wep_current_index);
++ dk.KeyID = adev->wep_current_index;
++ acx_s_configure(adev, &dk, ACX1xx_IE_DOT11_WEP_DEFAULT_KEY_SET); /* 0x1010 */
++ }
++ /* FIXME!!! wep_key_struct is filled nowhere! But adev
++ * is initialized to 0, and we don't REALLY need those keys either */
++/* for (i = 0; i < 10; i++) {
++ if (adev->wep_key_struct[i].len != 0) {
++ MAC_COPY(wep_mgmt.MacAddr, adev->wep_key_struct[i].addr);
++ wep_mgmt.KeySize = cpu_to_le16(adev->wep_key_struct[i].len);
++ memcpy(&wep_mgmt.Key, adev->wep_key_struct[i].key, le16_to_cpu(wep_mgmt.KeySize));
++ wep_mgmt.Action = cpu_to_le16(1);
++ log(L_ASSOC, "writing WEP key %d (len %d)\n", i, le16_to_cpu(wep_mgmt.KeySize));
++ if (OK == acx_s_issue_cmd(adev, ACX1xx_CMD_WEP_MGMT, &wep_mgmt, sizeof(wep_mgmt))) {
++ adev->wep_key_struct[i].index = i;
++ }
++ }
++ }
++*/
++
++ /* now retrieve the updated WEPCacheEnd pointer... */
++ if (OK != acx_s_interrogate(adev, &pt, ACX1xx_IE_MEMORY_MAP)) {
++ printk("%s: ACX1xx_IE_MEMORY_MAP read #2 FAILED\n",
++ adev->ndev->name);
++ goto fail;
++ }
++ /* ...and tell it to start allocating templates at that location */
++ /* (no endianness conversion needed) */
++ pt.PacketTemplateStart = pt.WEPCacheEnd;
++
++ if (OK != acx_s_configure(adev, &pt, ACX1xx_IE_MEMORY_MAP)) {
++ printk("%s: ACX1xx_IE_MEMORY_MAP write #2 FAILED\n",
++ adev->ndev->name);
++ goto fail;
++ }
++ res = OK;
++
++fail:
++ FN_EXIT1(res);
++ return res;
++}
++
++
++static int
++acx_s_init_max_template_generic(acx_device_t *adev, unsigned int len, unsigned int cmd)
++{
++ int res;
++ union {
++ acx_template_nullframe_t null;
++ acx_template_beacon_t b;
++ acx_template_tim_t tim;
++ acx_template_probereq_t preq;
++ acx_template_proberesp_t presp;
++ } templ;
++
++ memset(&templ, 0, len);
++ templ.null.size = cpu_to_le16(len - 2);
++ res = acx_s_issue_cmd(adev, cmd, &templ, len);
++ return res;
++}
++
++static inline int
++acx_s_init_max_null_data_template(acx_device_t *adev)
++{
++ return acx_s_init_max_template_generic(
++ adev, sizeof(acx_template_nullframe_t), ACX1xx_CMD_CONFIG_NULL_DATA
++ );
++}
++
++static inline int
++acx_s_init_max_beacon_template(acx_device_t *adev)
++{
++ return acx_s_init_max_template_generic(
++ adev, sizeof(acx_template_beacon_t), ACX1xx_CMD_CONFIG_BEACON
++ );
++}
++
++static inline int
++acx_s_init_max_tim_template(acx_device_t *adev)
++{
++ return acx_s_init_max_template_generic(
++ adev, sizeof(acx_template_tim_t), ACX1xx_CMD_CONFIG_TIM
++ );
++}
++
++static inline int
++acx_s_init_max_probe_response_template(acx_device_t *adev)
++{
++ return acx_s_init_max_template_generic(
++ adev, sizeof(acx_template_proberesp_t), ACX1xx_CMD_CONFIG_PROBE_RESPONSE
++ );
++}
++
++static inline int
++acx_s_init_max_probe_request_template(acx_device_t *adev)
++{
++ return acx_s_init_max_template_generic(
++ adev, sizeof(acx_template_probereq_t), ACX1xx_CMD_CONFIG_PROBE_REQUEST
++ );
++}
++
++/***********************************************************************
++** acx_s_set_tim_template
++**
++** FIXME: In full blown driver we will regularly update partial virtual bitmap
++** by calling this function
++** (it can be done by irq handler on each DTIM irq or by timer...)
++
++[802.11 7.3.2.6] TIM information element:
++- 1 EID
++- 1 Length
++1 1 DTIM Count
++ indicates how many beacons (including this) appear before next DTIM
++ (0=this one is a DTIM)
++2 1 DTIM Period
++ number of beacons between successive DTIMs
++ (0=reserved, 1=all TIMs are DTIMs, 2=every other, etc)
++3 1 Bitmap Control
++ bit0: Traffic Indicator bit associated with Assoc ID 0 (Bcast AID?)
++ set to 1 in TIM elements with a value of 0 in the DTIM Count field
++ when one or more broadcast or multicast frames are buffered at the AP.
++ bit1-7: Bitmap Offset (logically Bitmap_Offset = Bitmap_Control & 0xFE).
++4 n Partial Virtual Bitmap
++ Visible part of traffic-indication bitmap.
++ Full bitmap consists of 2008 bits (251 octets) such that bit number N
++ (0<=N<=2007) in the bitmap corresponds to bit number (N mod 8)
++ in octet number N/8 where the low-order bit of each octet is bit0,
++ and the high order bit is bit7.
++ Each set bit in virtual bitmap corresponds to traffic buffered by AP
++ for a specific station (with corresponding AID?).
++ Partial Virtual Bitmap shows a part of bitmap which has non-zero.
++ Bitmap Offset is a number of skipped zero octets (see above).
++ 'Missing' octets at the tail are also assumed to be zero.
++ Example: Length=6, Bitmap_Offset=2, Partial_Virtual_Bitmap=55 55 55
++ This means that traffic-indication bitmap is:
++ 00000000 00000000 01010101 01010101 01010101 00000000 00000000...
++ (is bit0 in the map is always 0 and real value is in Bitmap Control bit0?)
++*/
++static int
++acx_s_set_tim_template(acx_device_t *adev)
++{
++/* For now, configure smallish test bitmap, all zero ("no pending data") */
++ enum { bitmap_size = 5 };
++
++ acx_template_tim_t t;
++ int result;
++
++ FN_ENTER;
++
++ memset(&t, 0, sizeof(t));
++ t.size = 5 + bitmap_size; /* eid+len+count+period+bmap_ctrl + bmap */
++ t.tim_eid = WLAN_EID_TIM;
++ t.len = 3 + bitmap_size; /* count+period+bmap_ctrl + bmap */
++ result = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIG_TIM, &t, sizeof(t));
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_fill_beacon_or_proberesp_template
++**
++** For frame format info, please see 802.11-1999.pdf item 7.2.3.9 and below!!
++**
++** NB: we use the fact that
++** struct acx_template_proberesp and struct acx_template_beacon are the same
++** (well, almost...)
++**
++** [802.11] Beacon's body consist of these IEs:
++** 1 Timestamp
++** 2 Beacon interval
++** 3 Capability information
++** 4 SSID
++** 5 Supported rates (up to 8 rates)
++** 6 FH Parameter Set (frequency-hopping PHYs only)
++** 7 DS Parameter Set (direct sequence PHYs only)
++** 8 CF Parameter Set (only if PCF is supported)
++** 9 IBSS Parameter Set (ad-hoc only)
++**
++** Beacon only:
++** 10 TIM (AP only) (see 802.11 7.3.2.6)
++** 11 Country Information (802.11d)
++** 12 FH Parameters (802.11d)
++** 13 FH Pattern Table (802.11d)
++** ... (?!! did not yet find relevant PDF file... --vda)
++** 19 ERP Information (extended rate PHYs)
++** 20 Extended Supported Rates (if more than 8 rates)
++**
++** Proberesp only:
++** 10 Country information (802.11d)
++** 11 FH Parameters (802.11d)
++** 12 FH Pattern Table (802.11d)
++** 13-n Requested information elements (802.11d)
++** ????
++** 18 ERP Information (extended rate PHYs)
++** 19 Extended Supported Rates (if more than 8 rates)
++*/
++static int
++acx_fill_beacon_or_proberesp_template(acx_device_t *adev,
++ struct acx_template_beacon *templ,
++ u16 fc /* in host order! */)
++{
++ int len;
++ u8 *p;
++
++ FN_ENTER;
++
++ memset(templ, 0, sizeof(*templ));
++ MAC_BCAST(templ->da);
++ MAC_COPY(templ->sa, adev->dev_addr);
++ MAC_COPY(templ->bssid, adev->bssid);
++
++ templ->beacon_interval = cpu_to_le16(adev->beacon_interval);
++ acx_update_capabilities(adev);
++ templ->cap = cpu_to_le16(adev->capabilities);
++
++ p = templ->variable;
++ p = wlan_fill_ie_ssid(p, adev->essid_len, adev->essid);
++ p = wlan_fill_ie_rates(p, adev->rate_supported_len, adev->rate_supported);
++ p = wlan_fill_ie_ds_parms(p, adev->channel);
++ /* NB: should go AFTER tim, but acx seem to keep tim last always */
++ p = wlan_fill_ie_rates_ext(p, adev->rate_supported_len, adev->rate_supported);
++
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ /* ATIM window */
++ p = wlan_fill_ie_ibss_parms(p, 0); break;
++ case ACX_MODE_3_AP:
++ /* TIM IE is set up as separate template */
++ break;
++ }
++
++ len = p - (u8*)templ;
++ templ->fc = cpu_to_le16(WF_FTYPE_MGMT | fc);
++ /* - 2: do not count 'u16 size' field */
++ templ->size = cpu_to_le16(len - 2);
++
++ FN_EXIT1(len);
++ return len;
++}
++
++
++#if POWER_SAVE_80211
++/***********************************************************************
++** acx_s_set_null_data_template
++*/
++static int
++acx_s_set_null_data_template(acx_device_t *adev)
++{
++ struct acx_template_nullframe b;
++ int result;
++
++ FN_ENTER;
++
++ /* memset(&b, 0, sizeof(b)); not needed, setting all members */
++
++ b.size = cpu_to_le16(sizeof(b) - 2);
++ b.hdr.fc = WF_FTYPE_MGMTi | WF_FSTYPE_NULLi;
++ b.hdr.dur = 0;
++ MAC_BCAST(b.hdr.a1);
++ MAC_COPY(b.hdr.a2, adev->dev_addr);
++ MAC_COPY(b.hdr.a3, adev->bssid);
++ b.hdr.seq = 0;
++
++ result = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIG_NULL_DATA, &b, sizeof(b));
++
++ FN_EXIT1(result);
++ return result;
++}
++#endif
++
++
++/***********************************************************************
++** acx_s_set_beacon_template
++*/
++static int
++acx_s_set_beacon_template(acx_device_t *adev)
++{
++ struct acx_template_beacon bcn;
++ int len, result;
++
++ FN_ENTER;
++
++ len = acx_fill_beacon_or_proberesp_template(adev, &bcn, WF_FSTYPE_BEACON);
++ result = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIG_BEACON, &bcn, len);
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_s_set_probe_response_template
++*/
++static int
++acx_s_set_probe_response_template(acx_device_t *adev)
++{
++ struct acx_template_proberesp pr;
++ int len, result;
++
++ FN_ENTER;
++
++ len = acx_fill_beacon_or_proberesp_template(adev, &pr, WF_FSTYPE_PROBERESP);
++ result = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIG_PROBE_RESPONSE, &pr, len);
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_s_init_packet_templates()
++**
++** NOTE: order is very important here, to have a correct memory layout!
++** init templates: max Probe Request (station mode), max NULL data,
++** max Beacon, max TIM, max Probe Response.
++*/
++static int
++acx_s_init_packet_templates(acx_device_t *adev)
++{
++ acx_ie_memmap_t mm; /* ACX100 only */
++ int result = NOT_OK;
++
++ FN_ENTER;
++
++ log(L_DEBUG|L_INIT, "initializing max packet templates\n");
++
++ if (OK != acx_s_init_max_probe_request_template(adev))
++ goto failed;
++
++ if (OK != acx_s_init_max_null_data_template(adev))
++ goto failed;
++
++ if (OK != acx_s_init_max_beacon_template(adev))
++ goto failed;
++
++ if (OK != acx_s_init_max_tim_template(adev))
++ goto failed;
++
++ if (OK != acx_s_init_max_probe_response_template(adev))
++ goto failed;
++
++ if (IS_ACX111(adev)) {
++ /* ACX111 doesn't need the memory map magic below,
++ * and the other templates will be set later (acx_start) */
++ result = OK;
++ goto success;
++ }
++
++ /* ACX100 will have its TIM template set,
++ * and we also need to update the memory map */
++
++ if (OK != acx_s_set_tim_template(adev))
++ goto failed_acx100;
++
++ log(L_DEBUG, "sizeof(memmap)=%d bytes\n", (int)sizeof(mm));
++
++ if (OK != acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP))
++ goto failed_acx100;
++
++ mm.QueueStart = cpu_to_le32(le32_to_cpu(mm.PacketTemplateEnd) + 4);
++ if (OK != acx_s_configure(adev, &mm, ACX1xx_IE_MEMORY_MAP))
++ goto failed_acx100;
++
++ result = OK;
++ goto success;
++
++failed_acx100:
++ log(L_DEBUG|L_INIT,
++ /* "cb=0x%X\n" */
++ "ACXMemoryMap:\n"
++ ".CodeStart=0x%X\n"
++ ".CodeEnd=0x%X\n"
++ ".WEPCacheStart=0x%X\n"
++ ".WEPCacheEnd=0x%X\n"
++ ".PacketTemplateStart=0x%X\n"
++ ".PacketTemplateEnd=0x%X\n",
++ /* len, */
++ le32_to_cpu(mm.CodeStart),
++ le32_to_cpu(mm.CodeEnd),
++ le32_to_cpu(mm.WEPCacheStart),
++ le32_to_cpu(mm.WEPCacheEnd),
++ le32_to_cpu(mm.PacketTemplateStart),
++ le32_to_cpu(mm.PacketTemplateEnd));
++
++failed:
++ printk("%s: %s() FAILED\n", adev->ndev->name, __func__);
++
++success:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++*/
++static int
++acx_s_set_probe_request_template(acx_device_t *adev)
++{
++ struct acx_template_probereq probereq;
++ char *p;
++ int res;
++ int frame_len;
++
++ FN_ENTER;
++
++ memset(&probereq, 0, sizeof(probereq));
++
++ probereq.fc = WF_FTYPE_MGMTi | WF_FSTYPE_PROBEREQi;
++ MAC_BCAST(probereq.da);
++ MAC_COPY(probereq.sa, adev->dev_addr);
++ MAC_BCAST(probereq.bssid);
++
++ p = probereq.variable;
++ p = wlan_fill_ie_ssid(p, adev->essid_len, adev->essid);
++ p = wlan_fill_ie_rates(p, adev->rate_supported_len, adev->rate_supported);
++ p = wlan_fill_ie_rates_ext(p, adev->rate_supported_len, adev->rate_supported);
++ frame_len = p - (char*)&probereq;
++ probereq.size = cpu_to_le16(frame_len - 2);
++
++ res = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIG_PROBE_REQUEST, &probereq, frame_len);
++ FN_EXIT0;
++ return res;
++}
++
++
++/***********************************************************************
++** acx_s_init_mac
++*/
++int
++acx_s_init_mac(acx_device_t *adev)
++{
++ int result = NOT_OK;
++
++ FN_ENTER;
++
++ if (IS_ACX111(adev)) {
++ adev->ie_len = acx111_ie_len;
++ adev->ie_len_dot11 = acx111_ie_len_dot11;
++ } else {
++ adev->ie_len = acx100_ie_len;
++ adev->ie_len_dot11 = acx100_ie_len_dot11;
++ }
++
++#if defined (ACX_MEM)
++ adev->memblocksize = 256; /* 256 is default */
++ /* try to load radio for both ACX100 and ACX111, since both
++ * chips have at least some firmware versions making use of an
++ * external radio module */
++ acxmem_s_upload_radio(adev);
++#else
++ if (IS_PCI(adev)) {
++ adev->memblocksize = 256; /* 256 is default */
++ /* try to load radio for both ACX100 and ACX111, since both
++ * chips have at least some firmware versions making use of an
++ * external radio module */
++ acxpci_s_upload_radio(adev);
++ } else {
++ adev->memblocksize = 128;
++ }
++#endif
++
++ if (IS_ACX111(adev)) {
++ /* for ACX111, the order is different from ACX100
++ 1. init packet templates
++ 2. create station context and create dma regions
++ 3. init wep default keys
++ */
++ if (OK != acx_s_init_packet_templates(adev))
++ goto fail;
++ if (OK != acx111_s_create_dma_regions(adev)) {
++ printk("%s: acx111_create_dma_regions FAILED\n",
++ adev->ndev->name);
++ goto fail;
++ }
++ } else {
++ if (OK != acx100_s_init_wep(adev))
++ goto fail;
++ if (OK != acx_s_init_packet_templates(adev))
++ goto fail;
++ if (OK != acx100_s_create_dma_regions(adev)) {
++ printk("%s: acx100_create_dma_regions FAILED\n",
++ adev->ndev->name);
++ goto fail;
++ }
++ }
++
++ MAC_COPY(adev->ndev->dev_addr, adev->dev_addr);
++ result = OK;
++
++fail:
++ if (result)
++ printk("acx: init_mac() FAILED\n");
++ FN_EXIT1(result);
++ return result;
++}
++
++
++void
++acx_s_set_sane_reg_domain(acx_device_t *adev, int do_set)
++{
++ unsigned mask;
++
++ unsigned int i;
++
++ for (i = 0; i < sizeof(acx_reg_domain_ids); i++)
++ if (acx_reg_domain_ids[i] == adev->reg_dom_id)
++ break;
++
++ if (sizeof(acx_reg_domain_ids) == i) {
++ log(L_INIT, "Invalid or unsupported regulatory domain"
++ " 0x%02X specified, falling back to FCC (USA)!"
++ " Please report if this sounds fishy!\n",
++ adev->reg_dom_id);
++ i = 0;
++ adev->reg_dom_id = acx_reg_domain_ids[i];
++
++ /* since there was a mismatch, we need to force updating */
++ do_set = 1;
++ }
++
++ if (do_set) {
++ acx_ie_generic_t dom;
++ dom.m.bytes[0] = adev->reg_dom_id;
++ acx_s_configure(adev, &dom, ACX1xx_IE_DOT11_CURRENT_REG_DOMAIN);
++ }
++
++ adev->reg_dom_chanmask = reg_domain_channel_masks[i];
++
++ mask = (1 << (adev->channel - 1));
++ if (!(adev->reg_dom_chanmask & mask)) {
++ /* hmm, need to adjust our channel to reside within domain */
++ mask = 1;
++ for (i = 1; i <= 14; i++) {
++ if (adev->reg_dom_chanmask & mask) {
++ printk("%s: adjusting selected channel from %d "
++ "to %d due to new regulatory domain\n",
++ adev->ndev->name, adev->channel, i);
++ adev->channel = i;
++ break;
++ }
++ mask <<= 1;
++ }
++ }
++}
++
++
++#if POWER_SAVE_80211
++static void
++acx_s_update_80211_powersave_mode(acx_device_t *adev)
++{
++ /* merge both structs in a union to be able to have common code */
++ union {
++ acx111_ie_powersave_t acx111;
++ acx100_ie_powersave_t acx100;
++ } pm;
++
++ /* change 802.11 power save mode settings */
++ log(L_INIT, "updating 802.11 power save mode settings: "
++ "wakeup_cfg 0x%02X, listen interval %u, "
++ "options 0x%02X, hangover period %u, "
++ "enhanced_ps_transition_time %u\n",
++ adev->ps_wakeup_cfg, adev->ps_listen_interval,
++ adev->ps_options, adev->ps_hangover_period,
++ adev->ps_enhanced_transition_time);
++ acx_s_interrogate(adev, &pm, ACX1xx_IE_POWER_MGMT);
++ log(L_INIT, "Previous PS mode settings: wakeup_cfg 0x%02X, "
++ "listen interval %u, options 0x%02X, "
++ "hangover period %u, "
++ "enhanced_ps_transition_time %u, beacon_rx_time %u\n",
++ pm.acx111.wakeup_cfg,
++ pm.acx111.listen_interval,
++ pm.acx111.options,
++ pm.acx111.hangover_period,
++ IS_ACX111(adev) ?
++ pm.acx111.enhanced_ps_transition_time
++ : pm.acx100.enhanced_ps_transition_time,
++ IS_ACX111(adev) ?
++ pm.acx111.beacon_rx_time
++ : (u32)-1
++ );
++ pm.acx111.wakeup_cfg = adev->ps_wakeup_cfg;
++ pm.acx111.listen_interval = adev->ps_listen_interval;
++ pm.acx111.options = adev->ps_options;
++ pm.acx111.hangover_period = adev->ps_hangover_period;
++ if (IS_ACX111(adev)) {
++ pm.acx111.beacon_rx_time = cpu_to_le32(adev->ps_beacon_rx_time);
++ pm.acx111.enhanced_ps_transition_time = cpu_to_le32(adev->ps_enhanced_transition_time);
++ } else {
++ pm.acx100.enhanced_ps_transition_time = cpu_to_le16(adev->ps_enhanced_transition_time);
++ }
++ acx_s_configure(adev, &pm, ACX1xx_IE_POWER_MGMT);
++ acx_s_interrogate(adev, &pm, ACX1xx_IE_POWER_MGMT);
++ log(L_INIT, "wakeup_cfg: 0x%02X\n", pm.acx111.wakeup_cfg);
++ acx_s_msleep(40);
++ acx_s_interrogate(adev, &pm, ACX1xx_IE_POWER_MGMT);
++ log(L_INIT, "wakeup_cfg: 0x%02X\n", pm.acx111.wakeup_cfg);
++ log(L_INIT, "power save mode change %s\n",
++ (pm.acx111.wakeup_cfg & PS_CFG_PENDING) ? "FAILED" : "was successful");
++ /* FIXME: maybe verify via PS_CFG_PENDING bit here
++ * that power save mode change was successful. */
++ /* FIXME: we shouldn't trigger a scan immediately after
++ * fiddling with power save mode (since the firmware is sending
++ * a NULL frame then). */
++}
++#endif
++
++
++/***********************************************************************
++** acx_s_update_card_settings
++**
++** Applies accumulated changes in various adev->xxxx members
++** Called by ioctl commit handler, acx_start, acx_set_defaults,
++** acx_s_after_interrupt_task (if IRQ_CMD_UPDATE_CARD_CFG),
++*/
++static void
++acx111_s_sens_radio_16_17(acx_device_t *adev)
++{
++ u32 feature1, feature2;
++
++ if ((adev->sensitivity < 1) || (adev->sensitivity > 3)) {
++ printk("%s: invalid sensitivity setting (1..3), "
++ "setting to 1\n", adev->ndev->name);
++ adev->sensitivity = 1;
++ }
++ acx111_s_get_feature_config(adev, &feature1, &feature2);
++ CLEAR_BIT(feature1, FEATURE1_LOW_RX|FEATURE1_EXTRA_LOW_RX);
++ if (adev->sensitivity > 1)
++ SET_BIT(feature1, FEATURE1_LOW_RX);
++ if (adev->sensitivity > 2)
++ SET_BIT(feature1, FEATURE1_EXTRA_LOW_RX);
++ acx111_s_feature_set(adev, feature1, feature2);
++}
++
++
++void
++acx_s_update_card_settings(acx_device_t *adev)
++{
++ unsigned long flags;
++ unsigned int start_scan = 0;
++ int i;
++
++ FN_ENTER;
++
++ log(L_INIT, "get_mask 0x%08X, set_mask 0x%08X\n",
++ adev->get_mask, adev->set_mask);
++
++ /* Track dependencies betweed various settings */
++
++ if (adev->set_mask & (GETSET_MODE|GETSET_RESCAN|GETSET_WEP)) {
++ log(L_INIT, "important setting has been changed. "
++ "Need to update packet templates, too\n");
++ SET_BIT(adev->set_mask, SET_TEMPLATES);
++ }
++ if (adev->set_mask & GETSET_CHANNEL) {
++ /* This will actually tune RX/TX to the channel */
++ SET_BIT(adev->set_mask, GETSET_RX|GETSET_TX);
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ case ACX_MODE_3_AP:
++ /* Beacons contain channel# - update them */
++ SET_BIT(adev->set_mask, SET_TEMPLATES);
++ }
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ case ACX_MODE_2_STA:
++ start_scan = 1;
++ }
++ }
++
++ /* Apply settings */
++
++#ifdef WHY_SHOULD_WE_BOTHER /* imagine we were just powered off */
++ /* send a disassoc request in case it's required */
++ if (adev->set_mask & (GETSET_MODE|GETSET_RESCAN|GETSET_CHANNEL|GETSET_WEP)) {
++ if (ACX_MODE_2_STA == adev->mode) {
++ if (ACX_STATUS_4_ASSOCIATED == adev->status) {
++ log(L_ASSOC, "we were ASSOCIATED - "
++ "sending disassoc request\n");
++ acx_lock(adev, flags);
++ acx_l_transmit_disassoc(adev, NULL);
++ /* FIXME: deauth? */
++ acx_unlock(adev, flags);
++ }
++ /* need to reset some other stuff as well */
++ log(L_DEBUG, "resetting bssid\n");
++ MAC_ZERO(adev->bssid);
++ SET_BIT(adev->set_mask, SET_TEMPLATES|SET_STA_LIST);
++ start_scan = 1;
++ }
++ }
++#endif
++
++ if (adev->get_mask & GETSET_STATION_ID) {
++ u8 stationID[4 + ACX1xx_IE_DOT11_STATION_ID_LEN];
++ const u8 *paddr;
++
++ acx_s_interrogate(adev, &stationID, ACX1xx_IE_DOT11_STATION_ID);
++ paddr = &stationID[4];
++ for (i = 0; i < ETH_ALEN; i++) {
++ /* we copy the MAC address (reversed in
++ * the card) to the netdevice's MAC
++ * address, and on ifup it will be
++ * copied into iwadev->dev_addr */
++ adev->ndev->dev_addr[ETH_ALEN - 1 - i] = paddr[i];
++ }
++ CLEAR_BIT(adev->get_mask, GETSET_STATION_ID);
++ }
++
++ if (adev->get_mask & GETSET_SENSITIVITY) {
++ if ((RADIO_RFMD_11 == adev->radio_type)
++ || (RADIO_MAXIM_0D == adev->radio_type)
++ || (RADIO_RALINK_15 == adev->radio_type)) {
++ acx_s_read_phy_reg(adev, 0x30, &adev->sensitivity);
++ } else {
++ log(L_INIT, "don't know how to get sensitivity "
++ "for radio type 0x%02X\n", adev->radio_type);
++ adev->sensitivity = 0;
++ }
++ log(L_INIT, "got sensitivity value %u\n", adev->sensitivity);
++
++ CLEAR_BIT(adev->get_mask, GETSET_SENSITIVITY);
++ }
++
++ if (adev->get_mask & GETSET_ANTENNA) {
++ u8 antenna[4 + ACX1xx_IE_DOT11_CURRENT_ANTENNA_LEN];
++
++ memset(antenna, 0, sizeof(antenna));
++ acx_s_interrogate(adev, antenna, ACX1xx_IE_DOT11_CURRENT_ANTENNA);
++ adev->antenna = antenna[4];
++ log(L_INIT, "got antenna value 0x%02X\n", adev->antenna);
++ CLEAR_BIT(adev->get_mask, GETSET_ANTENNA);
++ }
++
++ if (adev->get_mask & GETSET_ED_THRESH) {
++ if (IS_ACX100(adev)) {
++ u8 ed_threshold[4 + ACX100_IE_DOT11_ED_THRESHOLD_LEN];
++
++ memset(ed_threshold, 0, sizeof(ed_threshold));
++ acx_s_interrogate(adev, ed_threshold, ACX100_IE_DOT11_ED_THRESHOLD);
++ adev->ed_threshold = ed_threshold[4];
++ } else {
++ log(L_INIT, "acx111 doesn't support ED\n");
++ adev->ed_threshold = 0;
++ }
++ log(L_INIT, "got Energy Detect (ED) threshold %u\n", adev->ed_threshold);
++ CLEAR_BIT(adev->get_mask, GETSET_ED_THRESH);
++ }
++
++ if (adev->get_mask & GETSET_CCA) {
++ if (IS_ACX100(adev)) {
++ u8 cca[4 + ACX1xx_IE_DOT11_CURRENT_CCA_MODE_LEN];
++
++ memset(cca, 0, sizeof(adev->cca));
++ acx_s_interrogate(adev, cca, ACX1xx_IE_DOT11_CURRENT_CCA_MODE);
++ adev->cca = cca[4];
++ } else {
++ log(L_INIT, "acx111 doesn't support CCA\n");
++ adev->cca = 0;
++ }
++ log(L_INIT, "got Channel Clear Assessment (CCA) value %u\n", adev->cca);
++ CLEAR_BIT(adev->get_mask, GETSET_CCA);
++ }
++
++ if (adev->get_mask & GETSET_REG_DOMAIN) {
++ acx_ie_generic_t dom;
++
++ acx_s_interrogate(adev, &dom, ACX1xx_IE_DOT11_CURRENT_REG_DOMAIN);
++ adev->reg_dom_id = dom.m.bytes[0];
++ acx_s_set_sane_reg_domain(adev, 0);
++ log(L_INIT, "got regulatory domain 0x%02X\n", adev->reg_dom_id);
++ CLEAR_BIT(adev->get_mask, GETSET_REG_DOMAIN);
++ }
++
++ if (adev->set_mask & GETSET_STATION_ID) {
++ u8 stationID[4 + ACX1xx_IE_DOT11_STATION_ID_LEN];
++ u8 *paddr;
++
++ paddr = &stationID[4];
++ memcpy(adev->dev_addr, adev->ndev->dev_addr, ETH_ALEN);
++ for (i = 0; i < ETH_ALEN; i++) {
++ /* copy the MAC address we obtained when we noticed
++ * that the ethernet iface's MAC changed
++ * to the card (reversed in
++ * the card!) */
++ paddr[i] = adev->dev_addr[ETH_ALEN - 1 - i];
++ }
++ acx_s_configure(adev, &stationID, ACX1xx_IE_DOT11_STATION_ID);
++ CLEAR_BIT(adev->set_mask, GETSET_STATION_ID);
++ }
++
++ if (adev->set_mask & SET_TEMPLATES) {
++ log(L_INIT, "updating packet templates\n");
++ switch (adev->mode) {
++ case ACX_MODE_2_STA:
++ acx_s_set_probe_request_template(adev);
++#if POWER_SAVE_80211
++ acx_s_set_null_data_template(adev);
++#endif
++ break;
++ case ACX_MODE_0_ADHOC:
++ acx_s_set_probe_request_template(adev);
++#if POWER_SAVE_80211
++ /* maybe power save functionality is somehow possible
++ * for Ad-Hoc mode, too... FIXME: verify it somehow? firmware debug fields? */
++ acx_s_set_null_data_template(adev);
++#endif
++ /* fall through */
++ case ACX_MODE_3_AP:
++ acx_s_set_beacon_template(adev);
++ acx_s_set_tim_template(adev);
++ /* BTW acx111 firmware would not send probe responses
++ ** if probe request does not have all basic rates flagged
++ ** by 0x80! Thus firmware does not conform to 802.11,
++ ** it should ignore 0x80 bit in ratevector from STA.
++ ** We can 'fix' it by not using this template and
++ ** sending probe responses by hand. TODO --vda */
++ acx_s_set_probe_response_template(adev);
++ }
++ /* Needed if generated frames are to be emitted at different tx rate now */
++ log(L_IRQ, "redoing cmd_join_bssid() after template cfg\n");
++ acx_s_cmd_join_bssid(adev, adev->bssid);
++ CLEAR_BIT(adev->set_mask, SET_TEMPLATES);
++ }
++ if (adev->set_mask & SET_STA_LIST) {
++ acx_lock(adev, flags);
++ acx_l_sta_list_init(adev);
++ CLEAR_BIT(adev->set_mask, SET_STA_LIST);
++ acx_unlock(adev, flags);
++ }
++ if (adev->set_mask & SET_RATE_FALLBACK) {
++ u8 rate[4 + ACX1xx_IE_RATE_FALLBACK_LEN];
++
++ /* configure to not do fallbacks when not in auto rate mode */
++ rate[4] = (adev->rate_auto) ? /* adev->txrate_fallback_retries */ 1 : 0;
++ log(L_INIT, "updating Tx fallback to %u retries\n", rate[4]);
++ acx_s_configure(adev, &rate, ACX1xx_IE_RATE_FALLBACK);
++ CLEAR_BIT(adev->set_mask, SET_RATE_FALLBACK);
++ }
++ if (adev->set_mask & GETSET_TXPOWER) {
++ log(L_INIT, "updating transmit power: %u dBm\n",
++ adev->tx_level_dbm);
++ acx_s_set_tx_level(adev, adev->tx_level_dbm);
++ CLEAR_BIT(adev->set_mask, GETSET_TXPOWER);
++ }
++
++ if (adev->set_mask & GETSET_SENSITIVITY) {
++ log(L_INIT, "updating sensitivity value: %u\n",
++ adev->sensitivity);
++ switch (adev->radio_type) {
++ case RADIO_RFMD_11:
++ case RADIO_MAXIM_0D:
++ case RADIO_RALINK_15:
++ acx_s_write_phy_reg(adev, 0x30, adev->sensitivity);
++ break;
++ case RADIO_RADIA_16:
++ case RADIO_UNKNOWN_17:
++ acx111_s_sens_radio_16_17(adev);
++ break;
++ default:
++ log(L_INIT, "don't know how to modify sensitivity "
++ "for radio type 0x%02X\n", adev->radio_type);
++ }
++ CLEAR_BIT(adev->set_mask, GETSET_SENSITIVITY);
++ }
++
++ if (adev->set_mask & GETSET_ANTENNA) {
++ /* antenna */
++ u8 antenna[4 + ACX1xx_IE_DOT11_CURRENT_ANTENNA_LEN];
++
++ memset(antenna, 0, sizeof(antenna));
++ antenna[4] = adev->antenna;
++ log(L_INIT, "updating antenna value: 0x%02X\n",
++ adev->antenna);
++ acx_s_configure(adev, &antenna, ACX1xx_IE_DOT11_CURRENT_ANTENNA);
++ CLEAR_BIT(adev->set_mask, GETSET_ANTENNA);
++ }
++
++ if (adev->set_mask & GETSET_ED_THRESH) {
++ /* ed_threshold */
++ log(L_INIT, "updating Energy Detect (ED) threshold: %u\n",
++ adev->ed_threshold);
++ if (IS_ACX100(adev)) {
++ u8 ed_threshold[4 + ACX100_IE_DOT11_ED_THRESHOLD_LEN];
++
++ memset(ed_threshold, 0, sizeof(ed_threshold));
++ ed_threshold[4] = adev->ed_threshold;
++ acx_s_configure(adev, &ed_threshold, ACX100_IE_DOT11_ED_THRESHOLD);
++ }
++ else
++ log(L_INIT, "acx111 doesn't support ED!\n");
++ CLEAR_BIT(adev->set_mask, GETSET_ED_THRESH);
++ }
++
++ if (adev->set_mask & GETSET_CCA) {
++ /* CCA value */
++ log(L_INIT, "updating Channel Clear Assessment "
++ "(CCA) value: 0x%02X\n", adev->cca);
++ if (IS_ACX100(adev)) {
++ u8 cca[4 + ACX1xx_IE_DOT11_CURRENT_CCA_MODE_LEN];
++
++ memset(cca, 0, sizeof(cca));
++ cca[4] = adev->cca;
++ acx_s_configure(adev, &cca, ACX1xx_IE_DOT11_CURRENT_CCA_MODE);
++ }
++ else
++ log(L_INIT, "acx111 doesn't support CCA!\n");
++ CLEAR_BIT(adev->set_mask, GETSET_CCA);
++ }
++
++ if (adev->set_mask & GETSET_LED_POWER) {
++ /* Enable Tx */
++ log(L_INIT, "updating power LED status: %u\n", adev->led_power);
++
++ acx_lock(adev, flags);
++#if defined (ACX_MEM)
++ acxmem_l_power_led(adev, adev->led_power);
++#else
++ if (IS_PCI(adev))
++ acxpci_l_power_led(adev, adev->led_power);
++#endif
++ CLEAR_BIT(adev->set_mask, GETSET_LED_POWER);
++ acx_unlock(adev, flags);
++ }
++
++ if (adev->set_mask & GETSET_POWER_80211) {
++#if POWER_SAVE_80211
++ acx_s_update_80211_powersave_mode(adev);
++#endif
++ CLEAR_BIT(adev->set_mask, GETSET_POWER_80211);
++ }
++
++ if (adev->set_mask & GETSET_CHANNEL) {
++ /* channel */
++ log(L_INIT, "updating channel to: %u\n", adev->channel);
++ CLEAR_BIT(adev->set_mask, GETSET_CHANNEL);
++ }
++
++ if (adev->set_mask & GETSET_TX) {
++ /* set Tx */
++ log(L_INIT, "updating: %s Tx\n",
++ adev->tx_disabled ? "disable" : "enable");
++ if (adev->tx_disabled)
++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0);
++ else
++ acx_s_issue_cmd(adev, ACX1xx_CMD_ENABLE_TX, &adev->channel, 1);
++ CLEAR_BIT(adev->set_mask, GETSET_TX);
++ }
++
++ if (adev->set_mask & GETSET_RX) {
++ /* Enable Rx */
++ log(L_INIT, "updating: enable Rx on channel: %u\n",
++ adev->channel);
++ acx_s_issue_cmd(adev, ACX1xx_CMD_ENABLE_RX, &adev->channel, 1);
++ CLEAR_BIT(adev->set_mask, GETSET_RX);
++ }
++
++ if (adev->set_mask & GETSET_RETRY) {
++ u8 short_retry[4 + ACX1xx_IE_DOT11_SHORT_RETRY_LIMIT_LEN];
++ u8 long_retry[4 + ACX1xx_IE_DOT11_LONG_RETRY_LIMIT_LEN];
++
++ log(L_INIT, "updating short retry limit: %u, long retry limit: %u\n",
++ adev->short_retry, adev->long_retry);
++ short_retry[0x4] = adev->short_retry;
++ long_retry[0x4] = adev->long_retry;
++ acx_s_configure(adev, &short_retry, ACX1xx_IE_DOT11_SHORT_RETRY_LIMIT);
++ acx_s_configure(adev, &long_retry, ACX1xx_IE_DOT11_LONG_RETRY_LIMIT);
++ CLEAR_BIT(adev->set_mask, GETSET_RETRY);
++ }
++
++ if (adev->set_mask & SET_MSDU_LIFETIME) {
++ u8 xmt_msdu_lifetime[4 + ACX1xx_IE_DOT11_MAX_XMIT_MSDU_LIFETIME_LEN];
++
++ log(L_INIT, "updating tx MSDU lifetime: %u\n",
++ adev->msdu_lifetime);
++ *(u32 *)&xmt_msdu_lifetime[4] = cpu_to_le32((u32)adev->msdu_lifetime);
++ acx_s_configure(adev, &xmt_msdu_lifetime, ACX1xx_IE_DOT11_MAX_XMIT_MSDU_LIFETIME);
++ CLEAR_BIT(adev->set_mask, SET_MSDU_LIFETIME);
++ }
++
++ if (adev->set_mask & GETSET_REG_DOMAIN) {
++ log(L_INIT, "updating regulatory domain: 0x%02X\n",
++ adev->reg_dom_id);
++ acx_s_set_sane_reg_domain(adev, 1);
++ CLEAR_BIT(adev->set_mask, GETSET_REG_DOMAIN);
++ }
++
++ if (adev->set_mask & GETSET_MODE) {
++ adev->ndev->type = (adev->mode == ACX_MODE_MONITOR) ?
++ adev->monitor_type : ARPHRD_ETHER;
++
++ switch (adev->mode) {
++ case ACX_MODE_3_AP:
++
++ acx_lock(adev, flags);
++ acx_l_sta_list_init(adev);
++ adev->aid = 0;
++ adev->ap_client = NULL;
++ MAC_COPY(adev->bssid, adev->dev_addr);
++ /* this basically says "we're connected" */
++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED);
++ acx_unlock(adev, flags);
++
++ acx111_s_feature_off(adev, 0, FEATURE2_NO_TXCRYPT|FEATURE2_SNIFFER);
++ /* start sending beacons */
++ acx_s_cmd_join_bssid(adev, adev->bssid);
++ break;
++ case ACX_MODE_MONITOR:
++ acx111_s_feature_on(adev, 0, FEATURE2_NO_TXCRYPT|FEATURE2_SNIFFER);
++ /* this stops beacons */
++ acx_s_cmd_join_bssid(adev, adev->bssid);
++ /* this basically says "we're connected" */
++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED);
++ SET_BIT(adev->set_mask, SET_RXCONFIG|SET_WEP_OPTIONS);
++ break;
++ case ACX_MODE_0_ADHOC:
++ case ACX_MODE_2_STA:
++ acx111_s_feature_off(adev, 0, FEATURE2_NO_TXCRYPT|FEATURE2_SNIFFER);
++
++ acx_lock(adev, flags);
++ adev->aid = 0;
++ adev->ap_client = NULL;
++ acx_unlock(adev, flags);
++
++ /* we want to start looking for peer or AP */
++ start_scan = 1;
++ break;
++ case ACX_MODE_OFF:
++ /* TODO: disable RX/TX, stop any scanning activity etc: */
++ /* adev->tx_disabled = 1; */
++ /* SET_BIT(adev->set_mask, GETSET_RX|GETSET_TX); */
++
++ /* This stops beacons (invalid macmode...) */
++ acx_s_cmd_join_bssid(adev, adev->bssid);
++ acx_set_status(adev, ACX_STATUS_0_STOPPED);
++ break;
++ }
++ CLEAR_BIT(adev->set_mask, GETSET_MODE);
++ }
++
++ if (adev->set_mask & SET_RXCONFIG) {
++ acx_s_initialize_rx_config(adev);
++ CLEAR_BIT(adev->set_mask, SET_RXCONFIG);
++ }
++
++ if (adev->set_mask & GETSET_RESCAN) {
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ case ACX_MODE_2_STA:
++ start_scan = 1;
++ break;
++ }
++ CLEAR_BIT(adev->set_mask, GETSET_RESCAN);
++ }
++
++ if (adev->set_mask & GETSET_WEP) {
++ /* encode */
++
++ ie_dot11WEPDefaultKeyID_t dkey;
++#ifdef DEBUG_WEP
++ struct {
++ u16 type;
++ u16 len;
++ u8 val;
++ } ACX_PACKED keyindic;
++#endif
++ log(L_INIT, "updating WEP key settings\n");
++
++ acx_s_set_wepkey(adev);
++
++ dkey.KeyID = adev->wep_current_index;
++ log(L_INIT, "setting WEP key %u as default\n", dkey.KeyID);
++ acx_s_configure(adev, &dkey, ACX1xx_IE_DOT11_WEP_DEFAULT_KEY_SET);
++#ifdef DEBUG_WEP
++ keyindic.val = 3;
++ acx_s_configure(adev, &keyindic, ACX111_IE_KEY_CHOOSE);
++#endif
++ start_scan = 1;
++ CLEAR_BIT(adev->set_mask, GETSET_WEP);
++ }
++
++ if (adev->set_mask & SET_WEP_OPTIONS) {
++ acx100_ie_wep_options_t options;
++ if (IS_ACX111(adev)) {
++ log(L_DEBUG, "setting WEP Options for acx111 is not supported\n");
++ } else {
++ log(L_INIT, "setting WEP Options\n");
++ acx100_s_init_wep(adev);
++#if 0
++ /* let's choose maximum setting: 4 default keys,
++ * plus 10 other keys: */
++ options.NumKeys = cpu_to_le16(DOT11_MAX_DEFAULT_WEP_KEYS + 10);
++ /* don't decrypt default key only,
++ * don't override decryption: */
++ options.WEPOption = 0;
++ if (adev->mode == ACX_MODE_MONITOR) {
++ /* don't decrypt default key only,
++ * override decryption mechanism: */
++ options.WEPOption = 2;
++ }
++
++ acx_s_configure(adev, &options, ACX100_IE_WEP_OPTIONS);
++#endif
++ }
++ CLEAR_BIT(adev->set_mask, SET_WEP_OPTIONS);
++ }
++
++ /* Rescan was requested */
++ if (start_scan) {
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ case ACX_MODE_2_STA:
++ /* We can avoid clearing list if join code
++ ** will be a bit more clever about not picking
++ ** 'bad' AP over and over again */
++ acx_lock(adev, flags);
++ adev->ap_client = NULL;
++ acx_l_sta_list_init(adev);
++ acx_set_status(adev, ACX_STATUS_1_SCANNING);
++ acx_unlock(adev, flags);
++
++ acx_s_cmd_start_scan(adev);
++ }
++ }
++
++ /* debug, rate, and nick don't need any handling */
++ /* what about sniffing mode?? */
++
++ log(L_INIT, "get_mask 0x%08X, set_mask 0x%08X - after update\n",
++ adev->get_mask, adev->set_mask);
++
++/* end: */
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_e_after_interrupt_task
++*/
++static int
++acx_s_recalib_radio(acx_device_t *adev)
++{
++ if (IS_ACX111(adev)) {
++ acx111_cmd_radiocalib_t cal;
++
++ printk("%s: recalibrating radio\n", adev->ndev->name);
++ /* automatic recalibration, choose all methods: */
++ cal.methods = cpu_to_le32(0x8000000f);
++ /* automatic recalibration every 60 seconds (value in TUs)
++ * I wonder what the firmware default here is? */
++ cal.interval = cpu_to_le32(58594);
++ return acx_s_issue_cmd_timeo(adev, ACX111_CMD_RADIOCALIB,
++ &cal, sizeof(cal), CMD_TIMEOUT_MS(100));
++ } else {
++ /* On ACX100, we need to recalibrate the radio
++ * by issuing a GETSET_TX|GETSET_RX */
++ if (/* (OK == acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0)) &&
++ (OK == acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_RX, NULL, 0)) && */
++ (OK == acx_s_issue_cmd(adev, ACX1xx_CMD_ENABLE_TX, &adev->channel, 1)) &&
++ (OK == acx_s_issue_cmd(adev, ACX1xx_CMD_ENABLE_RX, &adev->channel, 1)) )
++ return OK;
++ return NOT_OK;
++ }
++}
++
++static void
++acx_s_after_interrupt_recalib(acx_device_t *adev)
++{
++ int res;
++
++ /* this helps with ACX100 at least;
++ * hopefully ACX111 also does a
++ * recalibration here */
++
++ /* clear flag beforehand, since we want to make sure
++ * it's cleared; then only set it again on specific circumstances */
++ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
++
++ /* better wait a bit between recalibrations to
++ * prevent overheating due to torturing the card
++ * into working too long despite high temperature
++ * (just a safety measure) */
++ if (adev->recalib_time_last_success
++ && time_before(jiffies, adev->recalib_time_last_success
++ + RECALIB_PAUSE * 60 * HZ)) {
++ if (adev->recalib_msg_ratelimit <= 4) {
++ printk("%s: less than " STRING(RECALIB_PAUSE)
++ " minutes since last radio recalibration, "
++ "not recalibrating (maybe card is too hot?)\n",
++ adev->ndev->name);
++ adev->recalib_msg_ratelimit++;
++ if (adev->recalib_msg_ratelimit == 5)
++ printk("disabling above message until next recalib\n");
++ }
++ return;
++ }
++
++ adev->recalib_msg_ratelimit = 0;
++
++ /* note that commands sometimes fail (card busy),
++ * so only clear flag if we were fully successful */
++ res = acx_s_recalib_radio(adev);
++ if (res == OK) {
++ printk("%s: successfully recalibrated radio\n",
++ adev->ndev->name);
++ adev->recalib_time_last_success = jiffies;
++ adev->recalib_failure_count = 0;
++ } else {
++ /* failed: resubmit, but only limited
++ * amount of times within some time range
++ * to prevent endless loop */
++
++ adev->recalib_time_last_success = 0; /* we failed */
++
++ /* if some time passed between last
++ * attempts, then reset failure retry counter
++ * to be able to do next recalib attempt */
++ if (time_after(jiffies, adev->recalib_time_last_attempt + 5*HZ))
++ adev->recalib_failure_count = 0;
++
++ if (adev->recalib_failure_count < 5) {
++ /* increment inside only, for speedup of outside path */
++ adev->recalib_failure_count++;
++ adev->recalib_time_last_attempt = jiffies;
++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
++ }
++ }
++}
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 20)
++static void
++acx_e_after_interrupt_task(struct work_struct *work)
++{
++ acx_device_t *adev = container_of(work, acx_device_t, after_interrupt_task);
++#else
++ static void
++ acx_e_after_interrupt_task(void *data)
++ {
++ struct net_device *ndev = (struct net_device*)data;
++ acx_device_t *adev = ndev2adev(ndev);
++#endif
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++
++ if (!adev->after_interrupt_jobs)
++ goto end; /* no jobs to do */
++
++#if TX_CLEANUP_IN_SOFTIRQ
++ /* can happen only on PCI */
++ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_TX_CLEANUP) {
++ acx_lock(adev, flags);
++ acxpci_l_clean_txdesc(adev);
++ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_TX_CLEANUP);
++ acx_unlock(adev, flags);
++ }
++#endif
++ /* we see lotsa tx errors */
++ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_CMD_RADIO_RECALIB) {
++ acx_s_after_interrupt_recalib(adev);
++ }
++
++ /* a poor interrupt code wanted to do update_card_settings() */
++ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_UPDATE_CARD_CFG) {
++ if (ACX_STATE_IFACE_UP & adev->dev_state_mask)
++ acx_s_update_card_settings(adev);
++ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_UPDATE_CARD_CFG);
++ }
++
++ /* 1) we detected that no Scan_Complete IRQ came from fw, or
++ ** 2) we found too many STAs */
++ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_CMD_STOP_SCAN) {
++ log(L_IRQ, "sending a stop scan cmd...\n");
++ acx_s_issue_cmd(adev, ACX1xx_CMD_STOP_SCAN, NULL, 0);
++ /* HACK: set the IRQ bit, since we won't get a
++ * scan complete IRQ any more on ACX111 (works on ACX100!),
++ * since _we_, not a fw, have stopped the scan */
++ SET_BIT(adev->irq_status, HOST_INT_SCAN_COMPLETE);
++ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_CMD_STOP_SCAN);
++ }
++
++ /* either fw sent Scan_Complete or we detected that
++ ** no Scan_Complete IRQ came from fw. Finish scanning,
++ ** pick join partner if any */
++ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_COMPLETE_SCAN) {
++ if (adev->status == ACX_STATUS_1_SCANNING) {
++ if (OK != acx_s_complete_scan(adev)) {
++ SET_BIT(adev->after_interrupt_jobs,
++ ACX_AFTER_IRQ_RESTART_SCAN);
++ }
++ } else {
++ /* + scan kills current join status - restore it
++ ** (do we need it for STA?) */
++ /* + does it happen only with active scans?
++ ** active and passive scans? ALL scans including
++ ** background one? */
++ /* + was not verified that everything is restored
++ ** (but at least we start to emit beacons again) */
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ case ACX_MODE_3_AP:
++ log(L_IRQ, "redoing cmd_join_bssid() after scan\n");
++ acx_s_cmd_join_bssid(adev, adev->bssid);
++ }
++ }
++ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_COMPLETE_SCAN);
++ }
++
++ /* STA auth or assoc timed out, start over again */
++ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_RESTART_SCAN) {
++ log(L_IRQ, "sending a start_scan cmd...\n");
++ acx_s_cmd_start_scan(adev);
++ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_RESTART_SCAN);
++ }
++
++ /* whee, we got positive assoc response! 8) */
++ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_CMD_ASSOCIATE) {
++ acx_ie_generic_t pdr;
++ /* tiny race window exists, checking that we still a STA */
++ switch (adev->mode) {
++ case ACX_MODE_2_STA:
++ pdr.m.aid = cpu_to_le16(adev->aid);
++ acx_s_configure(adev, &pdr, ACX1xx_IE_ASSOC_ID);
++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED);
++ log(L_ASSOC|L_DEBUG, "ASSOCIATED!\n");
++ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_CMD_ASSOCIATE);
++ }
++ }
++end:
++ acx_sem_unlock(adev);
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_schedule_task
++**
++** Schedule the call of the after_interrupt method after leaving
++** the interrupt context.
++*/
++void
++acx_schedule_task(acx_device_t *adev, unsigned int set_flag)
++{
++ SET_BIT(adev->after_interrupt_jobs, set_flag);
++ SCHEDULE_WORK(&adev->after_interrupt_task);
++}
++
++
++/***********************************************************************
++*/
++void
++acx_init_task_scheduler(acx_device_t *adev)
++{
++ /* configure task scheduler */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 20)
++ INIT_WORK(&adev->after_interrupt_task, acx_e_after_interrupt_task);
++#else
++ INIT_WORK(&adev->after_interrupt_task, acx_e_after_interrupt_task,
++ adev->ndev);
++#endif
++}
++
++
++/***********************************************************************
++** acx_s_start
++*/
++void
++acx_s_start(acx_device_t *adev)
++{
++ FN_ENTER;
++
++ /*
++ * Ok, now we do everything that can possibly be done with ioctl
++ * calls to make sure that when it was called before the card
++ * was up we get the changes asked for
++ */
++
++ SET_BIT(adev->set_mask, SET_TEMPLATES|SET_STA_LIST|GETSET_WEP
++ |GETSET_TXPOWER|GETSET_ANTENNA|GETSET_ED_THRESH|GETSET_CCA
++ |GETSET_REG_DOMAIN|GETSET_MODE|GETSET_CHANNEL
++ |GETSET_TX|GETSET_RX|GETSET_STATION_ID);
++
++ log(L_INIT, "updating initial settings on iface activation\n");
++ acx_s_update_card_settings(adev);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acx_update_capabilities
++*/
++void
++acx_update_capabilities(acx_device_t *adev)
++{
++ u16 cap = 0;
++
++ switch (adev->mode) {
++ case ACX_MODE_3_AP:
++ SET_BIT(cap, WF_MGMT_CAP_ESS); break;
++ case ACX_MODE_0_ADHOC:
++ SET_BIT(cap, WF_MGMT_CAP_IBSS); break;
++ /* other types of stations do not emit beacons */
++ }
++
++ if (adev->wep_restricted) {
++ SET_BIT(cap, WF_MGMT_CAP_PRIVACY);
++ }
++ if (adev->cfgopt_dot11ShortPreambleOption) {
++ SET_BIT(cap, WF_MGMT_CAP_SHORT);
++ }
++ if (adev->cfgopt_dot11PBCCOption) {
++ SET_BIT(cap, WF_MGMT_CAP_PBCC);
++ }
++ if (adev->cfgopt_dot11ChannelAgility) {
++ SET_BIT(cap, WF_MGMT_CAP_AGILITY);
++ }
++ log(L_DEBUG, "caps updated from 0x%04X to 0x%04X\n",
++ adev->capabilities, cap);
++ adev->capabilities = cap;
++}
++
++/***********************************************************************
++** Common function to parse ALL configoption struct formats
++** (ACX100 and ACX111; FIXME: how to make it work with ACX100 USB!?!?).
++** FIXME: logging should be removed here and added to a /proc file instead
++*/
++void
++acx_s_parse_configoption(acx_device_t *adev, const acx111_ie_configoption_t *pcfg)
++{
++ const u8 *pEle;
++ int i;
++ int is_acx111 = IS_ACX111(adev);
++
++ if (acx_debug & L_DEBUG) {
++ printk("configoption struct content:\n");
++ acx_dump_bytes(pcfg, sizeof(*pcfg));
++ }
++
++ if (( is_acx111 && (adev->eeprom_version == 5))
++ || (!is_acx111 && (adev->eeprom_version == 4))
++ || (!is_acx111 && (adev->eeprom_version == 5))) {
++ /* these versions are known to be supported */
++ } else {
++ printk("unknown chip and EEPROM version combination (%s, v%d), "
++ "don't know how to parse config options yet. "
++ "Please report\n", is_acx111 ? "ACX111" : "ACX100",
++ adev->eeprom_version);
++ return;
++ }
++
++ /* first custom-parse the first part which has chip-specific layout */
++
++ pEle = (const u8 *) pcfg;
++
++ pEle += 4; /* skip (type,len) header */
++
++ memcpy(adev->cfgopt_NVSv, pEle, sizeof(adev->cfgopt_NVSv));
++ pEle += sizeof(adev->cfgopt_NVSv);
++
++ if (is_acx111) {
++ adev->cfgopt_NVS_vendor_offs = le16_to_cpu(*(u16 *)pEle);
++ pEle += sizeof(adev->cfgopt_NVS_vendor_offs);
++
++ adev->cfgopt_probe_delay = 200; /* good default value? */
++ pEle += 2; /* FIXME: unknown, value 0x0001 */
++ } else {
++ memcpy(adev->cfgopt_MAC, pEle, sizeof(adev->cfgopt_MAC));
++ pEle += sizeof(adev->cfgopt_MAC);
++
++ adev->cfgopt_probe_delay = le16_to_cpu(*(u16 *)pEle);
++ pEle += sizeof(adev->cfgopt_probe_delay);
++ if ((adev->cfgopt_probe_delay < 100) || (adev->cfgopt_probe_delay > 500)) {
++ printk("strange probe_delay value %d, "
++ "tweaking to 200\n", adev->cfgopt_probe_delay);
++ adev->cfgopt_probe_delay = 200;
++ }
++ }
++
++ adev->cfgopt_eof_memory = le32_to_cpu(*(u32 *)pEle);
++ pEle += sizeof(adev->cfgopt_eof_memory);
++
++ printk("NVS_vendor_offs:%04X probe_delay:%d eof_memory:%d\n",
++ adev->cfgopt_NVS_vendor_offs,
++ adev->cfgopt_probe_delay,
++ adev->cfgopt_eof_memory);
++
++ adev->cfgopt_dot11CCAModes = *pEle++;
++ adev->cfgopt_dot11Diversity = *pEle++;
++ adev->cfgopt_dot11ShortPreambleOption = *pEle++;
++ adev->cfgopt_dot11PBCCOption = *pEle++;
++ adev->cfgopt_dot11ChannelAgility = *pEle++;
++ adev->cfgopt_dot11PhyType = *pEle++;
++ adev->cfgopt_dot11TempType = *pEle++;
++ printk("CCAModes:%02X Diversity:%02X ShortPreOpt:%02X "
++ "PBCC:%02X ChanAgil:%02X PHY:%02X Temp:%02X\n",
++ adev->cfgopt_dot11CCAModes,
++ adev->cfgopt_dot11Diversity,
++ adev->cfgopt_dot11ShortPreambleOption,
++ adev->cfgopt_dot11PBCCOption,
++ adev->cfgopt_dot11ChannelAgility,
++ adev->cfgopt_dot11PhyType,
++ adev->cfgopt_dot11TempType);
++
++ /* then use common parsing for next part which has common layout */
++
++ pEle++; /* skip table_count (6) */
++
++ if (IS_MEM(adev) && IS_ACX100(adev))
++ {
++ /*
++ * For iPaq hx4700 Generic Slave F/W 1.10.7.K. I'm not sure if these
++ * 4 extra bytes are before the dot11 things above or after, so I'm just
++ * going to guess after. If someone sees these aren't reasonable numbers,
++ * please fix this.
++ * The area from which the dot11 values above are read contains:
++ * 04 01 01 01 00 05 01 06 00 02 01 02
++ * the 8 dot11 reads above take care of 8 of them, but which 8...
++ */
++ pEle += 4;
++ }
++
++ adev->cfgopt_antennas.type = pEle[0];
++ adev->cfgopt_antennas.len = pEle[1];
++ printk("AntennaID:%02X Len:%02X Data:",
++ adev->cfgopt_antennas.type, adev->cfgopt_antennas.len);
++ for (i = 0; i < pEle[1]; i++) {
++ adev->cfgopt_antennas.list[i] = pEle[i+2];
++ printk("%02X ", pEle[i+2]);
++ }
++ printk("\n");
++
++ pEle += pEle[1] + 2;
++ adev->cfgopt_power_levels.type = pEle[0];
++ adev->cfgopt_power_levels.len = pEle[1];
++ printk("PowerLevelID:%02X Len:%02X Data:",
++ adev->cfgopt_power_levels.type, adev->cfgopt_power_levels.len);
++ for (i = 0; i < pEle[1]; i++) {
++ adev->cfgopt_power_levels.list[i] = le16_to_cpu(*(u16 *)&pEle[i*2+2]);
++ printk("%04X ", adev->cfgopt_power_levels.list[i]);
++ }
++ printk("\n");
++
++ pEle += pEle[1]*2 + 2;
++ adev->cfgopt_data_rates.type = pEle[0];
++ adev->cfgopt_data_rates.len = pEle[1];
++ printk("DataRatesID:%02X Len:%02X Data:",
++ adev->cfgopt_data_rates.type, adev->cfgopt_data_rates.len);
++ for (i = 0; i < pEle[1]; i++) {
++ adev->cfgopt_data_rates.list[i] = pEle[i+2];
++ printk("%02X ", pEle[i+2]);
++ }
++ printk("\n");
++
++ pEle += pEle[1] + 2;
++ adev->cfgopt_domains.type = pEle[0];
++ adev->cfgopt_domains.len = pEle[1];
++ if (IS_MEM(adev) && IS_ACX100(adev))
++ {
++ /*
++ * For iPaq hx4700 Generic Slave F/W 1.10.7.K.
++ * There's an extra byte between this structure and the next
++ * that is not accounted for with this structure's length. It's
++ * most likely a bug in the firmware, but we can fix it here
++ * by bumping the length of this field by 1.
++ */
++ adev->cfgopt_domains.len++;
++ }
++ printk("DomainID:%02X Len:%02X Data:",
++ adev->cfgopt_domains.type, adev->cfgopt_domains.len);
++ for (i = 0; i < adev->cfgopt_domains.len; i++) {
++ adev->cfgopt_domains.list[i] = pEle[i+2];
++ printk("%02X ", pEle[i+2]);
++ }
++ printk("\n");
++
++ pEle += adev->cfgopt_domains.len + 2;
++
++ adev->cfgopt_product_id.type = pEle[0];
++ adev->cfgopt_product_id.len = pEle[1];
++ for (i = 0; i < pEle[1]; i++) {
++ adev->cfgopt_product_id.list[i] = pEle[i+2];
++ }
++ printk("ProductID:%02X Len:%02X Data:%.*s\n",
++ adev->cfgopt_product_id.type, adev->cfgopt_product_id.len,
++ adev->cfgopt_product_id.len, (char *)adev->cfgopt_product_id.list);
++
++ pEle += pEle[1] + 2;
++ adev->cfgopt_manufacturer.type = pEle[0];
++ adev->cfgopt_manufacturer.len = pEle[1];
++ for (i = 0; i < pEle[1]; i++) {
++ adev->cfgopt_manufacturer.list[i] = pEle[i+2];
++ }
++ printk("ManufacturerID:%02X Len:%02X Data:%.*s\n",
++ adev->cfgopt_manufacturer.type, adev->cfgopt_manufacturer.len,
++ adev->cfgopt_manufacturer.len, (char *)adev->cfgopt_manufacturer.list);
++/*
++ printk("EEPROM part:\n");
++ for (i=0; i<58; i++) {
++ printk("%02X =======> 0x%02X\n",
++ i, (u8 *)adev->cfgopt_NVSv[i-2]);
++ }
++*/
++}
++
++
++/***********************************************************************
++*/
++static int __init
++acx_e_init_module(void)
++{
++ int r1,r2,r3,r4;
++
++ acx_struct_size_check();
++
++ printk("acx: this driver is still EXPERIMENTAL\n"
++ "acx: reading README file and/or Craig's HOWTO is "
++ "recommended, visit http://acx100.sf.net in case "
++ "of further questions/discussion\n");
++
++#if defined(CONFIG_ACX_PCI)
++ r1 = acxpci_e_init_module();
++#else
++ r1 = -EINVAL;
++#endif
++#if defined(CONFIG_ACX_MEM)
++ r2 = acxmem_e_init_module();
++#else
++ r2 = -EINVAL;
++#endif
++#if defined(CONFIG_ACX_USB)
++ r3 = acxusb_e_init_module();
++#else
++ r3 = -EINVAL;
++#endif
++#if defined(CONFIG_ACX_CS)
++ r4 = acx_cs_init();
++#else
++ r4 = -EINVAL;
++#endif
++ if (r2 && r1 && r3 && r4) { /* all failed! */
++ if (r3 || r1)
++ return r3 ? r3 : r1;
++ else
++ return r2;
++ }
++ /* return success if at least one succeeded */
++ return 0;
++
++}
++
++static void __exit
++acx_e_cleanup_module(void)
++{
++#if defined(CONFIG_ACX_PCI)
++ acxpci_e_cleanup_module();
++#endif
++#if defined(CONFIG_ACX_MEM)
++ acxmem_e_cleanup_module();
++#endif
++#if defined(CONFIG_ACX_USB)
++ acxusb_e_cleanup_module();
++#endif
++#if defined(CONFIG_ACX_CS)
++ acx_cs_cleanup();
++#endif
++}
++
++module_init(acx_e_init_module)
++module_exit(acx_e_cleanup_module)
+Index: linux-2.6.22/drivers/net/wireless/acx/conv.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/conv.c 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,504 @@
++/***********************************************************************
++** Copyright (C) 2003 ACX100 Open Source Project
++**
++** The contents of this file are subject to the Mozilla Public
++** License Version 1.1 (the "License"); you may not use this file
++** except in compliance with the License. You may obtain a copy of
++** the License at http://www.mozilla.org/MPL/
++**
++** Software distributed under the License is distributed on an "AS
++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
++** implied. See the License for the specific language governing
++** rights and limitations under the License.
++**
++** Alternatively, the contents of this file may be used under the
++** terms of the GNU Public License version 2 (the "GPL"), in which
++** case the provisions of the GPL are applicable instead of the
++** above. If you wish to allow the use of your version of this file
++** only under the terms of the GPL and not to allow others to use
++** your version of this file under the MPL, indicate your decision
++** by deleting the provisions above and replace them with the notice
++** and other provisions required by the GPL. If you do not delete
++** the provisions above, a recipient may use your version of this
++** file under either the MPL or the GPL.
++** ---------------------------------------------------------------------
++** Inquiries regarding the ACX100 Open Source Project can be
++** made directly to:
++**
++** acx100-users@lists.sf.net
++** http://acx100.sf.net
++** ---------------------------------------------------------------------
++*/
++
++#include <linux/version.h>
++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
++#include <linux/config.h>
++#endif
++#include <linux/skbuff.h>
++#include <linux/if_arp.h>
++#include <linux/etherdevice.h>
++#include <linux/wireless.h>
++#include <net/iw_handler.h>
++
++#include "acx.h"
++
++
++/***********************************************************************
++** proto_is_stt
++**
++** Searches the 802.1h Selective Translation Table for a given
++** protocol.
++**
++** prottype - protocol number (in host order) to search for.
++**
++** Returns:
++** 1 - if the table is empty or a match is found.
++** 0 - if the table is non-empty and a match is not found.
++**
++** Based largely on p80211conv.c of the linux-wlan-ng project
++*/
++static inline int
++proto_is_stt(unsigned int proto)
++{
++ /* Always return found for now. This is the behavior used by the */
++ /* Zoom Win95 driver when 802.1h mode is selected */
++ /* TODO: If necessary, add an actual search we'll probably
++ need this to match the CMAC's way of doing things.
++ Need to do some testing to confirm.
++ */
++
++ if (proto == 0x80f3) /* APPLETALK */
++ return 1;
++
++ return 0;
++/* return ((prottype == ETH_P_AARP) || (prottype == ETH_P_IPX)); */
++}
++
++/* Helpers */
++
++static inline void
++store_llc_snap(struct wlan_llc *llc)
++{
++ llc->dsap = 0xaa; /* SNAP, see IEEE 802 */
++ llc->ssap = 0xaa;
++ llc->ctl = 0x03;
++}
++static inline int
++llc_is_snap(const struct wlan_llc *llc)
++{
++ return (llc->dsap == 0xaa)
++ && (llc->ssap == 0xaa)
++ && (llc->ctl == 0x03);
++}
++static inline void
++store_oui_rfc1042(struct wlan_snap *snap)
++{
++ snap->oui[0] = 0;
++ snap->oui[1] = 0;
++ snap->oui[2] = 0;
++}
++static inline int
++oui_is_rfc1042(const struct wlan_snap *snap)
++{
++ return (snap->oui[0] == 0)
++ && (snap->oui[1] == 0)
++ && (snap->oui[2] == 0);
++}
++static inline void
++store_oui_8021h(struct wlan_snap *snap)
++{
++ snap->oui[0] = 0;
++ snap->oui[1] = 0;
++ snap->oui[2] = 0xf8;
++}
++static inline int
++oui_is_8021h(const struct wlan_snap *snap)
++{
++ return (snap->oui[0] == 0)
++ && (snap->oui[1] == 0)
++ && (snap->oui[2] == 0xf8);
++}
++
++
++/***********************************************************************
++** acx_ether_to_txbuf
++**
++** Uses the contents of the ether frame to build the elements of
++** the 802.11 frame.
++**
++** We don't actually set up the frame header here. That's the
++** MAC's job. We're only handling conversion of DIXII or 802.3+LLC
++** frames to something that works with 802.11.
++**
++** Based largely on p80211conv.c of the linux-wlan-ng project
++*/
++int
++acx_ether_to_txbuf(acx_device_t *adev, void *txbuf, const struct sk_buff *skb)
++{
++ struct wlan_hdr_a3 *w_hdr;
++ struct wlan_ethhdr *e_hdr;
++ struct wlan_llc *e_llc;
++ struct wlan_snap *e_snap;
++ const u8 *a1, *a3;
++ int header_len, payload_len = -1;
++ /* protocol type or data length, depending on whether
++ * DIX or 802.3 ethernet format */
++ u16 proto;
++ u16 fc;
++
++ FN_ENTER;
++
++ if (unlikely(!skb->len)) {
++ log(L_DEBUG, "zero-length skb!\n");
++ goto end;
++ }
++
++ w_hdr = (struct wlan_hdr_a3*)txbuf;
++
++ switch (adev->mode) {
++ case ACX_MODE_MONITOR:
++ /* NB: one day we might want to play with DESC_CTL2_FCS
++ ** Will need to stop doing "- WLAN_FCS_LEN" here then */
++ if (unlikely(skb->len >= WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_FCS_LEN)) {
++ printk("%s: can't tx oversized frame (%d bytes)\n",
++ adev->ndev->name, skb->len);
++ goto end;
++ }
++ memcpy(w_hdr, skb->data, skb->len);
++ payload_len = skb->len;
++ goto end;
++ }
++
++ /* step 1: classify ether frame, DIX or 802.3? */
++ e_hdr = (wlan_ethhdr_t *)skb->data;
++ proto = ntohs(e_hdr->type);
++ if (proto <= 1500) {
++ log(L_DEBUG, "tx: 802.3 len: %d\n", skb->len);
++ /* codes <= 1500 reserved for 802.3 lengths */
++ /* it's 802.3, pass ether payload unchanged, */
++ /* trim off ethernet header and copy payload to txdesc */
++ header_len = WLAN_HDR_A3_LEN;
++ } else {
++ /* it's DIXII, time for some conversion */
++ /* Create 802.11 packet. Header also contains llc and snap. */
++
++ log(L_DEBUG, "tx: DIXII len: %d\n", skb->len);
++
++ /* size of header is 802.11 header + llc + snap */
++ header_len = WLAN_HDR_A3_LEN + sizeof(wlan_llc_t) + sizeof(wlan_snap_t);
++ /* llc is located behind the 802.11 header */
++ e_llc = (wlan_llc_t*)(w_hdr + 1);
++ /* snap is located behind the llc */
++ e_snap = (wlan_snap_t*)(e_llc + 1);
++
++ /* setup the LLC header */
++ store_llc_snap(e_llc);
++
++ /* setup the SNAP header */
++ e_snap->type = htons(proto);
++ if (proto_is_stt(proto)) {
++ store_oui_8021h(e_snap);
++ } else {
++ store_oui_rfc1042(e_snap);
++ }
++ }
++ /* trim off ethernet header and copy payload to txbuf */
++ payload_len = skb->len - sizeof(wlan_ethhdr_t);
++ /* TODO: can we just let acx DMA payload from skb instead? */
++ memcpy((u8*)txbuf + header_len, skb->data + sizeof(wlan_ethhdr_t), payload_len);
++ payload_len += header_len;
++
++ /* Set up the 802.11 header */
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ fc = (WF_FTYPE_DATAi | WF_FSTYPE_DATAONLYi);
++ a1 = e_hdr->daddr;
++ a3 = adev->bssid;
++ break;
++ case ACX_MODE_2_STA:
++ fc = (WF_FTYPE_DATAi | WF_FSTYPE_DATAONLYi | WF_FC_TODSi);
++ a1 = adev->bssid;
++ a3 = e_hdr->daddr;
++ break;
++ case ACX_MODE_3_AP:
++ fc = (WF_FTYPE_DATAi | WF_FSTYPE_DATAONLYi | WF_FC_FROMDSi);
++ a1 = e_hdr->daddr;
++ a3 = e_hdr->saddr;
++ break;
++ default:
++ printk("%s: error - converting eth to wlan in unknown mode\n",
++ adev->ndev->name);
++ payload_len = -1;
++ goto end;
++ }
++ if (adev->wep_enabled)
++ SET_BIT(fc, WF_FC_ISWEPi);
++
++ w_hdr->fc = fc;
++ w_hdr->dur = 0;
++ MAC_COPY(w_hdr->a1, a1);
++ MAC_COPY(w_hdr->a2, adev->dev_addr);
++ MAC_COPY(w_hdr->a3, a3);
++ w_hdr->seq = 0;
++
++#ifdef DEBUG_CONVERT
++ if (acx_debug & L_DATA) {
++ printk("original eth frame [%d]: ", skb->len);
++ acx_dump_bytes(skb->data, skb->len);
++ printk("802.11 frame [%d]: ", payload_len);
++ acx_dump_bytes(w_hdr, payload_len);
++ }
++#endif
++
++end:
++ FN_EXIT1(payload_len);
++ return payload_len;
++}
++
++
++/***********************************************************************
++** acx_rxbuf_to_ether
++**
++** Uses the contents of a received 802.11 frame to build an ether
++** frame.
++**
++** This function extracts the src and dest address from the 802.11
++** frame to use in the construction of the eth frame.
++**
++** Based largely on p80211conv.c of the linux-wlan-ng project
++*/
++struct sk_buff*
++acx_rxbuf_to_ether(acx_device_t *adev, rxbuffer_t *rxbuf)
++{
++ struct wlan_hdr *w_hdr;
++ struct wlan_ethhdr *e_hdr;
++ struct wlan_llc *e_llc;
++ struct wlan_snap *e_snap;
++ struct sk_buff *skb;
++ const u8 *daddr;
++ const u8 *saddr;
++ const u8 *e_payload;
++ int buflen, payload_length;
++ unsigned int payload_offset, mtu;
++ u16 fc;
++
++ FN_ENTER;
++
++ /* This looks complex because it must handle possible
++ ** phy header in rxbuff */
++ w_hdr = acx_get_wlan_hdr(adev, rxbuf);
++ payload_offset = WLAN_HDR_A3_LEN; /* it is relative to w_hdr */
++ payload_length = RXBUF_BYTES_USED(rxbuf) /* entire rxbuff... */
++ - ((u8*)w_hdr - (u8*)rxbuf) /* minus space before 802.11 frame */
++ - WLAN_HDR_A3_LEN; /* minus 802.11 header */
++
++ /* setup some vars for convenience */
++ fc = w_hdr->fc;
++ switch (WF_FC_FROMTODSi & fc) {
++ case 0:
++ daddr = w_hdr->a1;
++ saddr = w_hdr->a2;
++ break;
++ case WF_FC_FROMDSi:
++ daddr = w_hdr->a1;
++ saddr = w_hdr->a3;
++ break;
++ case WF_FC_TODSi:
++ daddr = w_hdr->a3;
++ saddr = w_hdr->a2;
++ break;
++ default: /* WF_FC_FROMTODSi */
++ payload_offset += (WLAN_HDR_A4_LEN - WLAN_HDR_A3_LEN);
++ payload_length -= (WLAN_HDR_A4_LEN - WLAN_HDR_A3_LEN);
++ daddr = w_hdr->a3;
++ saddr = w_hdr->a4;
++ }
++
++ if ((WF_FC_ISWEPi & fc) && IS_ACX100(adev)) {
++ /* chop off the IV+ICV WEP header and footer */
++ log(L_DATA|L_DEBUG, "rx: WEP packet, "
++ "chopping off IV and ICV\n");
++ payload_offset += WLAN_WEP_IV_LEN;
++ payload_length -= WLAN_WEP_IV_LEN + WLAN_WEP_ICV_LEN;
++ }
++
++ if (unlikely(payload_length < 0)) {
++ printk("%s: rx frame too short, ignored\n", adev->ndev->name);
++ goto ret_null;
++ }
++
++ e_hdr = (wlan_ethhdr_t*) ((u8*) w_hdr + payload_offset);
++ e_llc = (wlan_llc_t*) e_hdr;
++ e_snap = (wlan_snap_t*) (e_llc + 1);
++ mtu = adev->ndev->mtu;
++ e_payload = (u8*) (e_snap + 1);
++
++ log(L_DATA, "rx: payload_offset %d, payload_length %d\n",
++ payload_offset, payload_length);
++ log(L_XFER|L_DATA,
++ "rx: frame info: llc=%02X%02X%02X "
++ "snap.oui=%02X%02X%02X snap.type=%04X\n",
++ e_llc->dsap, e_llc->ssap, e_llc->ctl,
++ e_snap->oui[0], e_snap->oui[1], e_snap->oui[2],
++ ntohs(e_snap->type));
++
++ /* Test for the various encodings */
++ if ((payload_length >= sizeof(wlan_ethhdr_t))
++ && ((e_llc->dsap != 0xaa) || (e_llc->ssap != 0xaa))
++ && ( (mac_is_equal(daddr, e_hdr->daddr))
++ || (mac_is_equal(saddr, e_hdr->saddr))
++ )
++ ) {
++ /* 802.3 Encapsulated: */
++ /* wlan frame body contains complete eth frame (header+body) */
++ log(L_DEBUG|L_DATA, "rx: 802.3 ENCAP len=%d\n", payload_length);
++
++ if (unlikely(payload_length > (mtu + ETH_HLEN))) {
++ printk("%s: rx: ENCAP frame too large (%d > %d)\n",
++ adev->ndev->name,
++ payload_length, mtu + ETH_HLEN);
++ goto ret_null;
++ }
++
++ /* allocate space and setup host buffer */
++ buflen = payload_length;
++ /* Attempt to align IP header (14 bytes eth header + 2 = 16) */
++ skb = dev_alloc_skb(buflen + 2);
++ if (unlikely(!skb))
++ goto no_skb;
++ skb_reserve(skb, 2);
++ skb_put(skb, buflen); /* make room */
++
++ /* now copy the data from the 80211 frame */
++ memcpy(skb->data, e_hdr, payload_length);
++
++ } else if ( (payload_length >= sizeof(wlan_llc_t)+sizeof(wlan_snap_t))
++ && llc_is_snap(e_llc) ) {
++ /* wlan frame body contains: AA AA 03 ... (it's a SNAP) */
++
++ if ( !oui_is_rfc1042(e_snap)
++ || (proto_is_stt(ieee2host16(e_snap->type)) /* && (ethconv == WLAN_ETHCONV_8021h) */)) {
++ log(L_DEBUG|L_DATA, "rx: SNAP+RFC1042 len=%d\n", payload_length);
++ /* wlan frame body contains: AA AA 03 !(00 00 00) ... -or- */
++ /* wlan frame body contains: AA AA 03 00 00 00 0x80f3 ... */
++ /* build eth hdr, type = len, copy AA AA 03... as eth body */
++ /* it's a SNAP + RFC1042 frame && protocol is in STT */
++
++ if (unlikely(payload_length > mtu)) {
++ printk("%s: rx: SNAP frame too large (%d > %d)\n",
++ adev->ndev->name,
++ payload_length, mtu);
++ goto ret_null;
++ }
++
++ /* allocate space and setup host buffer */
++ buflen = payload_length + ETH_HLEN;
++ skb = dev_alloc_skb(buflen + 2);
++ if (unlikely(!skb))
++ goto no_skb;
++ skb_reserve(skb, 2);
++ skb_put(skb, buflen); /* make room */
++
++ /* create 802.3 header */
++ e_hdr = (wlan_ethhdr_t*) skb->data;
++ MAC_COPY(e_hdr->daddr, daddr);
++ MAC_COPY(e_hdr->saddr, saddr);
++ e_hdr->type = htons(payload_length);
++
++ /* Now copy the data from the 80211 frame.
++ Make room in front for the eth header, and keep the
++ llc and snap from the 802.11 payload */
++ memcpy(skb->data + ETH_HLEN,
++ e_llc, payload_length);
++
++ } else {
++ /* wlan frame body contains: AA AA 03 00 00 00 [type] [tail] */
++ /* build eth hdr, type=[type], copy [tail] as eth body */
++ log(L_DEBUG|L_DATA, "rx: 802.1h/RFC1042 len=%d\n",
++ payload_length);
++ /* it's an 802.1h frame (an RFC1042 && protocol is not in STT) */
++ /* build a DIXII + RFC894 */
++
++ payload_length -= sizeof(wlan_llc_t) + sizeof(wlan_snap_t);
++ if (unlikely(payload_length > mtu)) {
++ printk("%s: rx: DIXII frame too large (%d > %d)\n",
++ adev->ndev->name,
++ payload_length, mtu);
++ goto ret_null;
++ }
++
++ /* allocate space and setup host buffer */
++ buflen = payload_length + ETH_HLEN;
++ skb = dev_alloc_skb(buflen + 2);
++ if (unlikely(!skb))
++ goto no_skb;
++ skb_reserve(skb, 2);
++ skb_put(skb, buflen); /* make room */
++
++ /* create 802.3 header */
++ e_hdr = (wlan_ethhdr_t *) skb->data;
++ MAC_COPY(e_hdr->daddr, daddr);
++ MAC_COPY(e_hdr->saddr, saddr);
++ e_hdr->type = e_snap->type;
++
++ /* Now copy the data from the 80211 frame.
++ Make room in front for the eth header, and cut off the
++ llc and snap from the 802.11 payload */
++ memcpy(skb->data + ETH_HLEN,
++ e_payload, payload_length);
++ }
++
++ } else {
++ log(L_DEBUG|L_DATA, "rx: NON-ENCAP len=%d\n", payload_length);
++ /* build eth hdr, type=len, copy wlan body as eth body */
++ /* any NON-ENCAP */
++ /* it's a generic 80211+LLC or IPX 'Raw 802.3' */
++ /* build an 802.3 frame */
++
++ if (unlikely(payload_length > mtu)) {
++ printk("%s: rx: OTHER frame too large (%d > %d)\n",
++ adev->ndev->name, payload_length, mtu);
++ goto ret_null;
++ }
++
++ /* allocate space and setup host buffer */
++ buflen = payload_length + ETH_HLEN;
++ skb = dev_alloc_skb(buflen + 2);
++ if (unlikely(!skb))
++ goto no_skb;
++ skb_reserve(skb, 2);
++ skb_put(skb, buflen); /* make room */
++
++ /* set up the 802.3 header */
++ e_hdr = (wlan_ethhdr_t *) skb->data;
++ MAC_COPY(e_hdr->daddr, daddr);
++ MAC_COPY(e_hdr->saddr, saddr);
++ e_hdr->type = htons(payload_length);
++
++ /* now copy the data from the 80211 frame */
++ memcpy(skb->data + ETH_HLEN, e_llc, payload_length);
++ }
++
++ skb->dev = adev->ndev;
++ skb->protocol = eth_type_trans(skb, adev->ndev);
++
++#ifdef DEBUG_CONVERT
++ if (acx_debug & L_DATA) {
++ int len = RXBUF_BYTES_RCVD(adev, rxbuf);
++ printk("p802.11 frame [%d]: ", len);
++ acx_dump_bytes(w_hdr, len);
++ printk("eth frame [%d]: ", skb->len);
++ acx_dump_bytes(skb->data, skb->len);
++ }
++#endif
++
++ FN_EXIT0;
++ return skb;
++
++no_skb:
++ printk("%s: rx: no memory for skb (%d bytes)\n",
++ adev->ndev->name, buflen + 2);
++ret_null:
++ FN_EXIT1((int)NULL);
++ return NULL;
++}
+Index: linux-2.6.22/drivers/net/wireless/acx/cs.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/cs.c 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,5703 @@
++/***********************************************************************
++** Copyright (C) 2003 ACX100 Open Source Project
++**
++** The contents of this file are subject to the Mozilla Public
++** License Version 1.1 (the "License"); you may not use this file
++** except in compliance with the License. You may obtain a copy of
++** the License at http://www.mozilla.org/MPL/
++**
++** Software distributed under the License is distributed on an "AS
++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
++** implied. See the License for the specific language governing
++** rights and limitations under the License.
++**
++** Alternatively, the contents of this file may be used under the
++** terms of the GNU Public License version 2 (the "GPL"), in which
++** case the provisions of the GPL are applicable instead of the
++** above. If you wish to allow the use of your version of this file
++** only under the terms of the GPL and not to allow others to use
++** your version of this file under the MPL, indicate your decision
++** by deleting the provisions above and replace them with the notice
++** and other provisions required by the GPL. If you do not delete
++** the provisions above, a recipient may use your version of this
++** file under either the MPL or the GPL.
++** ---------------------------------------------------------------------
++** Inquiries regarding the ACX100 Open Source Project can be
++** made directly to:
++**
++** acx100-users@lists.sf.net
++** http://acx100.sf.net
++** ---------------------------------------------------------------------
++**
++** Slave memory interface support:
++**
++** Todd Blumer - SDG Systems
++** Bill Reese - HP
++** Eric McCorkle - Shadowsun
++**
++** CF support, (c) Fabrice Crohas, Paul Sokolovsky
++*/
++#define ACX_MEM 1
++
++/*
++ * non-zero makes it dump the ACX memory to the console then
++ * panic when you cat /proc/driver/acx_wlan0_diag
++ */
++#define DUMP_MEM_DEFINED 1
++
++#define DUMP_MEM_DURING_DIAG 0
++#define DUMP_IF_SLOW 0
++
++#define PATCH_AROUND_BAD_SPOTS 1
++#define HX4700_FIRMWARE_CHECKSUM 0x0036862e
++#define HX4700_ALTERNATE_FIRMWARE_CHECKSUM 0x00368a75
++
++#include <linux/version.h>
++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
++#include <linux/config.h>
++#endif
++
++/* Linux 2.6.18+ uses <linux/utsrelease.h> */
++#ifndef UTS_RELEASE
++#include <linux/utsrelease.h>
++#endif
++
++#include <linux/compiler.h> /* required for Lx 2.6.8 ?? */
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/sched.h>
++#include <linux/types.h>
++#include <linux/skbuff.h>
++#include <linux/slab.h>
++#include <linux/if_arp.h>
++#include <linux/irq.h>
++#include <linux/rtnetlink.h>
++#include <linux/wireless.h>
++#include <net/iw_handler.h>
++#include <linux/netdevice.h>
++#include <linux/ioport.h>
++#include <linux/pci.h>
++#include <linux/platform_device.h>
++#include <linux/pm.h>
++#include <linux/vmalloc.h>
++#include <linux/delay.h>
++#include <linux/workqueue.h>
++#include <linux/inetdevice.h>
++
++#define PCMCIA_DEBUG 1
++
++/*
++ All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
++ you do not define PCMCIA_DEBUG at all, all the debug code will be
++ left out. If you compile with PCMCIA_DEBUG=0, the debug code will
++ be present but disabled -- but it can then be enabled for specific
++ modules at load time with a 'pc_debug=#' option to insmod.
++
++*/
++#include <pcmcia/cs_types.h>
++#include <pcmcia/cs.h>
++#include <pcmcia/cistpl.h>
++#include <pcmcia/cisreg.h>
++#include <pcmcia/ds.h>
++#include "acx.h"
++#include "acx_hw.h"
++
++#ifdef PCMCIA_DEBUG
++static int pc_debug = PCMCIA_DEBUG;
++module_param(pc_debug, int, 0);
++static char *version = "$Revision: 1.10 $";
++#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args);
++#else
++#define DEBUG(n, args...)
++#endif
++
++
++static win_req_t memwin;
++
++typedef struct local_info_t {
++ dev_node_t node;
++ struct net_device *ndev;
++} local_info_t;
++
++static struct net_device *resume_ndev;
++
++
++/***********************************************************************
++*/
++
++#define CARD_EEPROM_ID_SIZE 6
++
++#include <asm/io.h>
++
++#define REG_ACX_VENDOR_ID 0x900
++/*
++ * This is the vendor id on the HX4700, anyway
++ */
++#define ACX_VENDOR_ID 0x8400104c
++
++typedef enum {
++ ACX_SOFT_RESET = 0,
++
++ ACX_SLV_REG_ADDR,
++ ACX_SLV_REG_DATA,
++ ACX_SLV_REG_ADATA,
++
++ ACX_SLV_MEM_CP,
++ ACX_SLV_MEM_ADDR,
++ ACX_SLV_MEM_DATA,
++ ACX_SLV_MEM_CTL,
++} acxreg_t;
++
++/***********************************************************************
++*/
++static void acxmem_i_tx_timeout(struct net_device *ndev);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
++static irqreturn_t acxmem_i_interrupt(int irq, void *dev_id);
++#else
++static irqreturn_t acxmem_i_interrupt(int irq, void *dev_id, struct pt_regs *regs);
++#endif
++static void acxmem_i_set_multicast_list(struct net_device *ndev);
++
++static int acxmem_e_open(struct net_device *ndev);
++static int acxmem_e_close(struct net_device *ndev);
++static void acxmem_s_up(struct net_device *ndev);
++static void acxmem_s_down(struct net_device *ndev);
++
++static void dump_acxmem (acx_device_t *adev, u32 start, int length);
++static int acxmem_complete_hw_reset (acx_device_t *adev);
++static void acxmem_s_delete_dma_regions(acx_device_t *adev);
++
++static int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
++acxmem_e_suspend( struct net_device *ndev, pm_message_t state);
++#else
++acxmem_e_suspend( struct net_device *ndev, u32 state);
++#endif
++static void
++fw_resumer(struct work_struct *notused);
++//fw_resumer( void *data );
++
++static int acx_netdev_event(struct notifier_block *this, unsigned long event, void *ptr)
++{
++ struct net_device *ndev = ptr;
++ acx_device_t *adev = ndev2adev(ndev);
++
++ /*
++ * Upper level ioctl() handlers send a NETDEV_CHANGEADDR if the MAC address changes.
++ */
++
++ if (NETDEV_CHANGEADDR == event) {
++ /*
++ * the upper layers put the new MAC address in ndev->dev_addr; we just copy
++ * it over and update the ACX with it.
++ */
++ MAC_COPY(adev->dev_addr, adev->ndev->dev_addr);
++ adev->set_mask |= GETSET_STATION_ID;
++ acx_s_update_card_settings (adev);
++ }
++
++ return 0;
++}
++
++static struct notifier_block acx_netdev_notifier = {
++ .notifier_call = acx_netdev_event,
++};
++
++/***********************************************************************
++** Register access
++*/
++
++/* Pick one */
++/* #define INLINE_IO static */
++#define INLINE_IO static inline
++
++INLINE_IO u32
++read_id_register (acx_device_t *adev)
++{
++ writel (0x24, &adev->iobase[ACX_SLV_REG_ADDR]);
++ return readl (&adev->iobase[ACX_SLV_REG_DATA]);
++}
++
++INLINE_IO u32
++read_reg32(acx_device_t *adev, unsigned int offset)
++{
++ u32 val;
++ u32 addr;
++
++ if (offset > IO_ACX_ECPU_CTRL)
++ addr = offset;
++ else
++ addr = adev->io[offset];
++
++ if (addr < 0x20) {
++ return readl(((u8*)adev->iobase) + addr);
++ }
++
++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
++ val = readl( &adev->iobase[ACX_SLV_REG_DATA] );
++
++ return val;
++}
++
++INLINE_IO u16
++read_reg16(acx_device_t *adev, unsigned int offset)
++{
++ u16 lo;
++ u32 addr;
++
++ if (offset > IO_ACX_ECPU_CTRL)
++ addr = offset;
++ else
++ addr = adev->io[offset];
++
++ if (addr < 0x20) {
++ return readw(((u8 *) adev->iobase) + addr);
++ }
++
++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
++ lo = readw( (u16 *)&adev->iobase[ACX_SLV_REG_DATA] );
++
++ return lo;
++}
++
++INLINE_IO u8
++read_reg8(acx_device_t *adev, unsigned int offset)
++{
++ u8 lo;
++ u32 addr;
++
++ if (offset > IO_ACX_ECPU_CTRL)
++ addr = offset;
++ else
++ addr = adev->io[offset];
++
++ if (addr < 0x20)
++ return readb(((u8 *)adev->iobase) + addr);
++
++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
++ lo = readw( (u8 *)&adev->iobase[ACX_SLV_REG_DATA] );
++
++ return (u8)lo;
++}
++
++INLINE_IO void
++write_reg32(acx_device_t *adev, unsigned int offset, u32 val)
++{
++ u32 addr;
++
++ if (offset > IO_ACX_ECPU_CTRL)
++ addr = offset;
++ else
++ addr = adev->io[offset];
++
++ if (addr < 0x20) {
++ writel(val, ((u8*)adev->iobase) + addr);
++ return;
++ }
++
++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
++ writel( val, &adev->iobase[ACX_SLV_REG_DATA] );
++}
++
++INLINE_IO void
++write_reg16(acx_device_t *adev, unsigned int offset, u16 val)
++{
++ u32 addr;
++
++ if (offset > IO_ACX_ECPU_CTRL)
++ addr = offset;
++ else
++ addr = adev->io[offset];
++
++ if (addr < 0x20) {
++ writew(val, ((u8 *)adev->iobase) + addr);
++ return;
++ }
++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
++ writew( val, (u16 *) &adev->iobase[ACX_SLV_REG_DATA] );
++}
++
++INLINE_IO void
++write_reg8(acx_device_t *adev, unsigned int offset, u8 val)
++{
++ u32 addr;
++
++ if (offset > IO_ACX_ECPU_CTRL)
++ addr = offset;
++ else
++ addr = adev->io[offset];
++
++ if (addr < 0x20) {
++ writeb(val, ((u8 *) adev->iobase) + addr);
++ return;
++ }
++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
++ writeb( val, (u8 *)&adev->iobase[ACX_SLV_REG_DATA] );
++}
++
++/* Handle PCI posting properly:
++ * Make sure that writes reach the adapter in case they require to be executed
++ * *before* the next write, by reading a random (and safely accessible) register.
++ * This call has to be made if there is no read following (which would flush the data
++ * to the adapter), yet the written data has to reach the adapter immediately. */
++INLINE_IO void
++write_flush(acx_device_t *adev)
++{
++ /* readb(adev->iobase + adev->io[IO_ACX_INFO_MAILBOX_OFFS]); */
++ /* faster version (accesses the first register, IO_ACX_SOFT_RESET,
++ * which should also be safe): */
++ (void) readl(adev->iobase);
++}
++
++INLINE_IO void
++set_regbits (acx_device_t *adev, unsigned int offset, u32 bits) {
++ u32 tmp;
++
++ tmp = read_reg32 (adev, offset);
++ tmp = tmp | bits;
++ write_reg32 (adev, offset, tmp);
++ write_flush (adev);
++}
++
++INLINE_IO void
++clear_regbits (acx_device_t *adev, unsigned int offset, u32 bits) {
++ u32 tmp;
++
++ tmp = read_reg32 (adev, offset);
++ tmp = tmp & ~bits;
++ write_reg32 (adev, offset, tmp);
++ write_flush (adev);
++}
++
++/*
++ * Copy from PXA memory to the ACX memory. This assumes both the PXA and ACX
++ * addresses are 32 bit aligned. Count is in bytes.
++ */
++INLINE_IO void
++write_slavemem32 (acx_device_t *adev, u32 slave_address, u32 val)
++{
++ write_reg32 (adev, IO_ACX_SLV_MEM_CTL, 0x0);
++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, slave_address);
++ udelay (10);
++ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, val);
++}
++
++INLINE_IO u32
++read_slavemem32 (acx_device_t *adev, u32 slave_address)
++{
++ u32 val;
++
++ write_reg32 (adev, IO_ACX_SLV_MEM_CTL, 0x0);
++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, slave_address);
++ udelay (10);
++ val = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
++
++ return val;
++}
++
++INLINE_IO void
++write_slavemem8 (acx_device_t *adev, u32 slave_address, u8 val)
++{
++ u32 data;
++ u32 base;
++ int offset;
++
++ /*
++ * Get the word containing the target address and the byte offset in that word.
++ */
++ base = slave_address & ~3;
++ offset = (slave_address & 3) * 8;
++
++ data = read_slavemem32 (adev, base);
++ data &= ~(0xff << offset);
++ data |= val << offset;
++ write_slavemem32 (adev, base, data);
++}
++
++INLINE_IO u8
++read_slavemem8 (acx_device_t *adev, u32 slave_address)
++{
++ u8 val;
++ u32 base;
++ u32 data;
++ int offset;
++
++ base = slave_address & ~3;
++ offset = (slave_address & 3) * 8;
++
++ data = read_slavemem32 (adev, base);
++
++ val = (data >> offset) & 0xff;
++
++ return val;
++}
++
++/*
++ * doesn't split across word boundaries
++ */
++INLINE_IO void
++write_slavemem16 (acx_device_t *adev, u32 slave_address, u16 val)
++{
++ u32 data;
++ u32 base;
++ int offset;
++
++ /*
++ * Get the word containing the target address and the byte offset in that word.
++ */
++ base = slave_address & ~3;
++ offset = (slave_address & 3) * 8;
++
++ data = read_slavemem32 (adev, base);
++ data &= ~(0xffff << offset);
++ data |= val << offset;
++ write_slavemem32 (adev, base, data);
++}
++
++/*
++ * doesn't split across word boundaries
++ */
++INLINE_IO u16
++read_slavemem16 (acx_device_t *adev, u32 slave_address)
++{
++ u16 val;
++ u32 base;
++ u32 data;
++ int offset;
++
++ base = slave_address & ~3;
++ offset = (slave_address & 3) * 8;
++
++ data = read_slavemem32 (adev, base);
++
++ val = (data >> offset) & 0xffff;
++
++ return val;
++}
++
++/*
++ * Copy from slave memory
++ *
++ * TODO - rewrite using address autoincrement, handle partial words
++ */
++void
++copy_from_slavemem (acx_device_t *adev, u8 *destination, u32 source, int count) {
++ u32 tmp = 0;
++ u8 *ptmp = (u8 *) &tmp;
++
++ /*
++ * Right now I'm making the assumption that the destination is aligned, but
++ * I'd better check.
++ */
++ if ((u32) destination & 3) {
++ printk ("acx copy_from_slavemem: warning! destination not word-aligned!\n");
++ }
++
++ while (count >= 4) {
++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, source);
++ udelay (10);
++ *((u32 *) destination) = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
++ count -= 4;
++ source += 4;
++ destination += 4;
++ }
++
++ /*
++ * If the word reads above didn't satisfy the count, read one more word
++ * and transfer a byte at a time until the request is satisfied.
++ */
++ if (count) {
++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, source);
++ udelay (10);
++ tmp = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
++ while (count--) {
++ *destination++ = *ptmp++;
++ }
++ }
++}
++
++/*
++ * Copy to slave memory
++ *
++ * TODO - rewrite using autoincrement, handle partial words
++ */
++void
++copy_to_slavemem (acx_device_t *adev, u32 destination, u8 *source, int count)
++{
++ u32 tmp = 0;
++ u8* ptmp = (u8 *) &tmp;
++ static u8 src[512]; /* make static to avoid huge stack objects */
++
++ /*
++ * For now, make sure the source is word-aligned by copying it to a word-aligned
++ * buffer. Someday rewrite to avoid the extra copy.
++ */
++ if (count > sizeof (src)) {
++ printk ("acx copy_to_slavemem: Warning! buffer overflow!\n");
++ count = sizeof (src);
++ }
++ memcpy (src, source, count);
++ source = src;
++
++ while (count >= 4) {
++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination);
++ udelay (10);
++ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, *((u32 *) source));
++ count -= 4;
++ source += 4;
++ destination += 4;
++ }
++
++ /*
++ * If there are leftovers read the next word from the acx and merge in
++ * what they want to write.
++ */
++ if (count) {
++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination);
++ udelay (10);
++ tmp = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
++ while (count--) {
++ *ptmp++ = *source++;
++ }
++ /*
++ * reset address in case we're currently in auto-increment mode
++ */
++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination);
++ udelay (10);
++ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, tmp);
++ udelay (10);
++ }
++
++}
++
++/*
++ * Block copy to slave buffers using memory block chain mode. Copies to the ACX
++ * transmit buffer structure with minimal intervention on our part.
++ * Interrupts should be disabled when calling this.
++ */
++void
++chaincopy_to_slavemem (acx_device_t *adev, u32 destination, u8 *source, int count)
++{
++ u32 val;
++ u32 *data = (u32 *) source;
++ static u8 aligned_source[WLAN_A4FR_MAXLEN_WEP_FCS];
++
++ /*
++ * Warn if the pointers don't look right. Destination must fit in [23:5] with
++ * zero elsewhere and source should be 32 bit aligned.
++ * This should never happen since we're in control of both, but I want to know about
++ * it if it does.
++ */
++ if ((destination & 0x00ffffe0) != destination) {
++ printk ("acx chaincopy: destination block 0x%04x not aligned!\n", destination);
++ }
++ if (count > sizeof aligned_source) {
++ printk( KERN_ERR "chaincopy_to_slavemem overflow!\n" );
++ count = sizeof aligned_source;
++ }
++ if ((u32) source & 3) {
++ memcpy (aligned_source, source, count);
++ data = (u32 *) aligned_source;
++ }
++
++ /*
++ * SLV_MEM_CTL[17:16] = memory block chain mode with auto-increment
++ * SLV_MEM_CTL[5:2] = offset to data portion = 1 word
++ */
++ val = 2 << 16 | 1 << 2;
++ writel (val, &adev->iobase[ACX_SLV_MEM_CTL]);
++
++ /*
++ * SLV_MEM_CP[23:5] = start of 1st block
++ * SLV_MEM_CP[3:2] = offset to memblkptr = 0
++ */
++ val = destination & 0x00ffffe0;
++ writel (val, &adev->iobase[ACX_SLV_MEM_CP]);
++
++ /*
++ * SLV_MEM_ADDR[23:2] = SLV_MEM_CTL[5:2] + SLV_MEM_CP[23:5]
++ */
++ val = (destination & 0x00ffffe0) + (1<<2);
++ writel (val, &adev->iobase[ACX_SLV_MEM_ADDR]);
++
++ /*
++ * Write the data to the slave data register, rounding up to the end
++ * of the word containing the last byte (hence the > 0)
++ */
++ while (count > 0) {
++ writel (*data++, &adev->iobase[ACX_SLV_MEM_DATA]);
++ count -= 4;
++ }
++}
++
++
++/*
++ * Block copy from slave buffers using memory block chain mode. Copies from the ACX
++ * receive buffer structures with minimal intervention on our part.
++ * Interrupts should be disabled when calling this.
++ */
++void
++chaincopy_from_slavemem (acx_device_t *adev, u8 *destination, u32 source, int count)
++{
++ u32 val;
++ u32 *data = (u32 *) destination;
++ static u8 aligned_destination[WLAN_A4FR_MAXLEN_WEP_FCS];
++ int saved_count = count;
++
++ /*
++ * Warn if the pointers don't look right. Destination must fit in [23:5] with
++ * zero elsewhere and source should be 32 bit aligned.
++ * Turns out the network stack sends unaligned things, so fix them before
++ * copying to the ACX.
++ */
++ if ((source & 0x00ffffe0) != source) {
++ printk ("acx chaincopy: source block 0x%04x not aligned!\n", source);
++ dump_acxmem (adev, 0, 0x10000);
++ }
++ if ((u32) destination & 3) {
++ //printk ("acx chaincopy: data destination not word aligned!\n");
++ data = (u32 *) aligned_destination;
++ if (count > sizeof aligned_destination) {
++ printk( KERN_ERR "chaincopy_from_slavemem overflow!\n" );
++ count = sizeof aligned_destination;
++ }
++ }
++
++ /*
++ * SLV_MEM_CTL[17:16] = memory block chain mode with auto-increment
++ * SLV_MEM_CTL[5:2] = offset to data portion = 1 word
++ */
++ val = (2 << 16) | (1 << 2);
++ writel (val, &adev->iobase[ACX_SLV_MEM_CTL]);
++
++ /*
++ * SLV_MEM_CP[23:5] = start of 1st block
++ * SLV_MEM_CP[3:2] = offset to memblkptr = 0
++ */
++ val = source & 0x00ffffe0;
++ writel (val, &adev->iobase[ACX_SLV_MEM_CP]);
++
++ /*
++ * SLV_MEM_ADDR[23:2] = SLV_MEM_CTL[5:2] + SLV_MEM_CP[23:5]
++ */
++ val = (source & 0x00ffffe0) + (1<<2);
++ writel (val, &adev->iobase[ACX_SLV_MEM_ADDR]);
++
++ /*
++ * Read the data from the slave data register, rounding up to the end
++ * of the word containing the last byte (hence the > 0)
++ */
++ while (count > 0) {
++ *data++ = readl (&adev->iobase[ACX_SLV_MEM_DATA]);
++ count -= 4;
++ }
++
++ /*
++ * If the destination wasn't aligned, we would have saved it in
++ * the aligned buffer, so copy it where it should go.
++ */
++ if ((u32) destination & 3) {
++ memcpy (destination, aligned_destination, saved_count);
++ }
++}
++
++char
++printable (char c)
++{
++ return ((c >= 20) && (c < 127)) ? c : '.';
++}
++
++#if DUMP_MEM_DEFINED > 0
++static void
++dump_acxmem (acx_device_t *adev, u32 start, int length)
++{
++ int i;
++ u8 buf[16];
++
++ while (length > 0) {
++ printk ("%04x ", start);
++ copy_from_slavemem (adev, buf, start, 16);
++ for (i = 0; (i < 16) && (i < length); i++) {
++ printk ("%02x ", buf[i]);
++ }
++ for (i = 0; (i < 16) && (i < length); i++) {
++ printk ("%c", printable (buf[i]));
++ }
++ printk ("\n");
++ start += 16;
++ length -= 16;
++ }
++}
++#endif
++
++static void
++enable_acx_irq(acx_device_t *adev);
++static void
++disable_acx_irq(acx_device_t *adev);
++
++/*
++ * Return an acx pointer to the next transmit data block.
++ */
++u32
++allocate_acx_txbuf_space (acx_device_t *adev, int count) {
++ u32 block, next, last_block;
++ int blocks_needed;
++ unsigned long flags;
++
++ spin_lock_irqsave(&adev->txbuf_lock, flags);
++ /*
++ * Take 4 off the memory block size to account for the reserved word at the start of
++ * the block.
++ */
++ blocks_needed = count / (adev->memblocksize - 4);
++ if (count % (adev->memblocksize - 4))
++ blocks_needed++;
++
++ if (blocks_needed <= adev->acx_txbuf_blocks_free) {
++ /*
++ * Take blocks at the head of the free list.
++ */
++ last_block = block = adev->acx_txbuf_free;
++
++ /*
++ * Follow block pointers through the requested number of blocks both to
++ * find the new head of the free list and to set the flags for the blocks
++ * appropriately.
++ */
++ while (blocks_needed--) {
++ /*
++ * Keep track of the last block of the allocation
++ */
++ last_block = adev->acx_txbuf_free;
++
++ /*
++ * Make sure the end control flag is not set.
++ */
++ next = read_slavemem32 (adev, adev->acx_txbuf_free) & 0x7ffff;
++ write_slavemem32 (adev, adev->acx_txbuf_free, next);
++
++ /*
++ * Update the new head of the free list
++ */
++ adev->acx_txbuf_free = next << 5;
++ adev->acx_txbuf_blocks_free--;
++
++ }
++
++ /*
++ * Flag the last block both by clearing out the next pointer
++ * and marking the control field.
++ */
++ write_slavemem32 (adev, last_block, 0x02000000);
++
++ /*
++ * If we're out of buffers make sure the free list pointer is NULL
++ */
++ if (!adev->acx_txbuf_blocks_free) {
++ adev->acx_txbuf_free = 0;
++ }
++ }
++ else {
++ block = 0;
++ }
++ spin_unlock_irqrestore (&adev->txbuf_lock, flags);
++ return block;
++}
++
++/*
++ * Return buffer space back to the pool by following the next pointers until we find
++ * the block marked as the end. Point the last block to the head of the free list,
++ * then update the head of the free list to point to the newly freed memory.
++ * This routine gets called in interrupt context, so it shouldn't block to protect
++ * the integrity of the linked list. The ISR already holds the lock.
++ */
++void
++reclaim_acx_txbuf_space (acx_device_t *adev, u32 blockptr) {
++ u32 cur, last, next;
++ unsigned long flags;
++
++ spin_lock_irqsave (&adev->txbuf_lock, flags);
++ if ((blockptr >= adev->acx_txbuf_start) &&
++ (blockptr <= adev->acx_txbuf_start +
++ (adev->acx_txbuf_numblocks - 1) * adev->memblocksize)) {
++ cur = blockptr;
++ do {
++ last = cur;
++ next = read_slavemem32 (adev, cur);
++
++ /*
++ * Advance to the next block in this allocation
++ */
++ cur = (next & 0x7ffff) << 5;
++
++ /*
++ * This block now counts as free.
++ */
++ adev->acx_txbuf_blocks_free++;
++ } while (!(next & 0x02000000));
++
++ /*
++ * last now points to the last block of that allocation. Update the pointer
++ * in that block to point to the free list and reset the free list to the
++ * first block of the free call. If there were no free blocks, make sure
++ * the new end of the list marks itself as truly the end.
++ */
++ if (adev->acx_txbuf_free) {
++ write_slavemem32 (adev, last, adev->acx_txbuf_free >> 5);
++ }
++ else {
++ write_slavemem32 (adev, last, 0x02000000);
++ }
++ adev->acx_txbuf_free = blockptr;
++ }
++ spin_unlock_irqrestore(&adev->txbuf_lock, flags);
++}
++
++/*
++ * Initialize the pieces managing the transmit buffer pool on the ACX. The transmit
++ * buffer is a circular queue with one 32 bit word reserved at the beginning of each
++ * block. The upper 13 bits are a control field, of which only 0x02000000 has any
++ * meaning. The lower 19 bits are the address of the next block divided by 32.
++ */
++void
++init_acx_txbuf (acx_device_t *adev) {
++
++ /*
++ * acx100_s_init_memory_pools set up txbuf_start and txbuf_numblocks for us.
++ * All we need to do is reset the rest of the bookeeping.
++ */
++
++ adev->acx_txbuf_free = adev->acx_txbuf_start;
++ adev->acx_txbuf_blocks_free = adev->acx_txbuf_numblocks;
++
++ /*
++ * Initialization leaves the last transmit pool block without a pointer back to
++ * the head of the list, but marked as the end of the list. That's how we want
++ * to see it, too, so leave it alone. This is only ever called after a firmware
++ * reset, so the ACX memory is in the state we want.
++ */
++
++}
++
++INLINE_IO int
++adev_present(acx_device_t *adev)
++{
++ /* fast version (accesses the first register, IO_ACX_SOFT_RESET,
++ * which should be safe): */
++ return readl(adev->iobase) != 0xffffffff;
++}
++
++/***********************************************************************
++*/
++static inline txdesc_t*
++get_txdesc(acx_device_t *adev, int index)
++{
++ return (txdesc_t*) (((u8*)adev->txdesc_start) + index * adev->txdesc_size);
++}
++
++static inline txdesc_t*
++advance_txdesc(acx_device_t *adev, txdesc_t* txdesc, int inc)
++{
++ return (txdesc_t*) (((u8*)txdesc) + inc * adev->txdesc_size);
++}
++
++static txhostdesc_t*
++get_txhostdesc(acx_device_t *adev, txdesc_t* txdesc)
++{
++ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return NULL;
++ }
++ index /= adev->txdesc_size;
++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return NULL;
++ }
++ return &adev->txhostdesc_start[index*2];
++}
++
++static inline client_t*
++get_txc(acx_device_t *adev, txdesc_t* txdesc)
++{
++ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return NULL;
++ }
++ index /= adev->txdesc_size;
++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return NULL;
++ }
++ return adev->txc[index];
++}
++
++static inline u16
++get_txr(acx_device_t *adev, txdesc_t* txdesc)
++{
++ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
++ index /= adev->txdesc_size;
++ return adev->txr[index];
++}
++
++static inline void
++put_txcr(acx_device_t *adev, txdesc_t* txdesc, client_t* c, u16 r111)
++{
++ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return;
++ }
++ index /= adev->txdesc_size;
++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return;
++ }
++ adev->txc[index] = c;
++ adev->txr[index] = r111;
++}
++
++
++/***********************************************************************
++** EEPROM and PHY read/write helpers
++*/
++/***********************************************************************
++** acxmem_read_eeprom_byte
++**
++** Function called to read an octet in the EEPROM.
++**
++** This function is used by acxmem_e_probe to check if the
++** connected card is a legal one or not.
++**
++** Arguments:
++** adev ptr to acx_device structure
++** addr address to read in the EEPROM
++** charbuf ptr to a char. This is where the read octet
++** will be stored
++*/
++int
++acxmem_read_eeprom_byte(acx_device_t *adev, u32 addr, u8 *charbuf)
++{
++ int result;
++ int count;
++
++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr);
++ write_flush(adev);
++ write_reg32(adev, IO_ACX_EEPROM_CTL, 2);
++
++ count = 0xffff;
++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
++ /* scheduling away instead of CPU burning loop
++ * doesn't seem to work here at all:
++ * awful delay, sometimes also failure.
++ * Doesn't matter anyway (only small delay). */
++ if (unlikely(!--count)) {
++ printk("%s: timeout waiting for EEPROM read\n",
++ adev->ndev->name);
++ result = NOT_OK;
++ goto fail;
++ }
++ cpu_relax();
++ }
++
++ *charbuf = read_reg8(adev, IO_ACX_EEPROM_DATA);
++ log(L_DEBUG, "EEPROM at 0x%04X = 0x%02X\n", addr, *charbuf);
++ result = OK;
++
++fail:
++ return result;
++}
++
++
++/***********************************************************************
++** We don't lock hw accesses here since we never r/w eeprom in IRQ
++** Note: this function sleeps only because of GFP_KERNEL alloc
++*/
++#ifdef UNUSED
++int
++acxmem_s_write_eeprom(acx_device_t *adev, u32 addr, u32 len, const u8 *charbuf)
++{
++ u8 *data_verify = NULL;
++ unsigned long flags;
++ int count, i;
++ int result = NOT_OK;
++ u16 gpio_orig;
++
++ printk("acx: WARNING! I would write to EEPROM now. "
++ "Since I really DON'T want to unless you know "
++ "what you're doing (THIS CODE WILL PROBABLY "
++ "NOT WORK YET!), I will abort that now. And "
++ "definitely make sure to make a "
++ "/proc/driver/acx_wlan0_eeprom backup copy first!!! "
++ "(the EEPROM content includes the PCI config header!! "
++ "If you kill important stuff, then you WILL "
++ "get in trouble and people DID get in trouble already)\n");
++ return OK;
++
++ FN_ENTER;
++
++ data_verify = kmalloc(len, GFP_KERNEL);
++ if (!data_verify) {
++ goto end;
++ }
++
++ /* first we need to enable the OE (EEPROM Output Enable) GPIO line
++ * to be able to write to the EEPROM.
++ * NOTE: an EEPROM writing success has been reported,
++ * but you probably have to modify GPIO_OUT, too,
++ * and you probably need to activate a different GPIO
++ * line instead! */
++ gpio_orig = read_reg16(adev, IO_ACX_GPIO_OE);
++ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig & ~1);
++ write_flush(adev);
++
++ /* ok, now start writing the data out */
++ for (i = 0; i < len; i++) {
++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i);
++ write_reg32(adev, IO_ACX_EEPROM_DATA, *(charbuf + i));
++ write_flush(adev);
++ write_reg32(adev, IO_ACX_EEPROM_CTL, 1);
++
++ count = 0xffff;
++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
++ if (unlikely(!--count)) {
++ printk("WARNING, DANGER!!! "
++ "Timeout waiting for EEPROM write\n");
++ goto end;
++ }
++ cpu_relax();
++ }
++ }
++
++ /* disable EEPROM writing */
++ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig);
++ write_flush(adev);
++
++ /* now start a verification run */
++ for (i = 0; i < len; i++) {
++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i);
++ write_flush(adev);
++ write_reg32(adev, IO_ACX_EEPROM_CTL, 2);
++
++ count = 0xffff;
++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
++ if (unlikely(!--count)) {
++ printk("timeout waiting for EEPROM read\n");
++ goto end;
++ }
++ cpu_relax();
++ }
++
++ data_verify[i] = read_reg16(adev, IO_ACX_EEPROM_DATA);
++ }
++
++ if (0 == memcmp(charbuf, data_verify, len))
++ result = OK; /* read data matches, success */
++
++end:
++ kfree(data_verify);
++ FN_EXIT1(result);
++ return result;
++}
++#endif /* UNUSED */
++
++
++/***********************************************************************
++** acxmem_s_read_phy_reg
++**
++** Messing with rx/tx disabling and enabling here
++** (write_reg32(adev, IO_ACX_ENABLE, 0b000000xx)) kills traffic
++*/
++int
++acxmem_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf)
++{
++ int result = NOT_OK;
++ int count;
++
++ FN_ENTER;
++
++ write_reg32(adev, IO_ACX_PHY_ADDR, reg);
++ write_flush(adev);
++ write_reg32(adev, IO_ACX_PHY_CTL, 2);
++
++ count = 0xffff;
++ while (read_reg32(adev, IO_ACX_PHY_CTL)) {
++ /* scheduling away instead of CPU burning loop
++ * doesn't seem to work here at all:
++ * awful delay, sometimes also failure.
++ * Doesn't matter anyway (only small delay). */
++ if (unlikely(!--count)) {
++ printk("%s: timeout waiting for phy read\n",
++ adev->ndev->name);
++ *charbuf = 0;
++ goto fail;
++ }
++ cpu_relax();
++ }
++
++ log(L_DEBUG, "count was %u\n", count);
++ *charbuf = read_reg8(adev, IO_ACX_PHY_DATA);
++
++ log(L_DEBUG, "radio PHY at 0x%04X = 0x%02X\n", *charbuf, reg);
++ result = OK;
++ goto fail; /* silence compiler warning */
++fail:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++*/
++int
++acxmem_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value)
++{
++ int count;
++ FN_ENTER;
++
++ /* mprusko said that 32bit accesses result in distorted sensitivity
++ * on his card. Unconfirmed, looks like it's not true (most likely since we
++ * now properly flush writes). */
++ write_reg32(adev, IO_ACX_PHY_DATA, value);
++ write_reg32(adev, IO_ACX_PHY_ADDR, reg);
++ write_flush(adev);
++ write_reg32(adev, IO_ACX_PHY_CTL, 1);
++ write_flush(adev);
++
++ count = 0xffff;
++ while (read_reg32(adev, IO_ACX_PHY_CTL)) {
++ /* scheduling away instead of CPU burning loop
++ * doesn't seem to work here at all:
++ * awful delay, sometimes also failure.
++ * Doesn't matter anyway (only small delay). */
++ if (unlikely(!--count)) {
++ printk("%s: timeout waiting for phy read\n",
++ adev->ndev->name);
++ goto fail;
++ }
++ cpu_relax();
++ }
++
++ log(L_DEBUG, "radio PHY write 0x%02X at 0x%04X\n", value, reg);
++ fail:
++ FN_EXIT1(OK);
++ return OK;
++}
++
++
++#define NO_AUTO_INCREMENT 1
++
++/***********************************************************************
++** acxmem_s_write_fw
++**
++** Write the firmware image into the card.
++**
++** Arguments:
++** adev wlan device structure
++** fw_image firmware image.
++**
++** Returns:
++** 1 firmware image corrupted
++** 0 success
++*/
++static int
++acxmem_s_write_fw(acx_device_t *adev, const firmware_image_t *fw_image, u32 offset)
++{
++ int len, size, checkMismatch = -1;
++ u32 sum, v32, tmp, id;
++ /* we skip the first four bytes which contain the control sum */
++ const u8 *p = (u8*)fw_image + 4;
++
++ /* start the image checksum by adding the image size value */
++ sum = p[0]+p[1]+p[2]+p[3];
++ p += 4;
++
++#ifdef NOPE
++#if NO_AUTO_INCREMENT
++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */
++#else
++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */
++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */
++ write_flush(adev);
++#endif
++#endif
++ len = 0;
++ size = le32_to_cpu(fw_image->size) & (~3);
++
++ while (likely(len < size)) {
++ v32 = be32_to_cpu(*(u32*)p);
++ sum += p[0]+p[1]+p[2]+p[3];
++ p += 4;
++ len += 4;
++
++#ifdef NOPE
++#if NO_AUTO_INCREMENT
++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4);
++ write_flush(adev);
++#endif
++ write_reg32(adev, IO_ACX_SLV_MEM_DATA, v32);
++ write_flush(adev);
++#endif
++ write_slavemem32 (adev, offset + len - 4, v32);
++
++ id = read_id_register (adev);
++
++ /*
++ * check the data written
++ */
++ tmp = read_slavemem32 (adev, offset + len - 4);
++ if (checkMismatch && (tmp != v32)) {
++ printk ("first data mismatch at 0x%08x good 0x%08x bad 0x%08x id 0x%08x\n",
++ offset + len - 4, v32, tmp, id);
++ checkMismatch = 0;
++ }
++ }
++ log(L_DEBUG, "firmware written, size:%d sum1:%x sum2:%x\n",
++ size, sum, le32_to_cpu(fw_image->chksum));
++
++ /* compare our checksum with the stored image checksum */
++ return (sum != le32_to_cpu(fw_image->chksum));
++}
++
++
++/***********************************************************************
++** acxmem_s_validate_fw
++**
++** Compare the firmware image given with
++** the firmware image written into the card.
++**
++** Arguments:
++** adev wlan device structure
++** fw_image firmware image.
++**
++** Returns:
++** NOT_OK firmware image corrupted or not correctly written
++** OK success
++*/
++static int
++acxmem_s_validate_fw(acx_device_t *adev, const firmware_image_t *fw_image,
++ u32 offset)
++{
++ u32 sum, v32, w32;
++ int len, size;
++ int result = OK;
++ /* we skip the first four bytes which contain the control sum */
++ const u8 *p = (u8*)fw_image + 4;
++
++ /* start the image checksum by adding the image size value */
++ sum = p[0]+p[1]+p[2]+p[3];
++ p += 4;
++
++ write_reg32(adev, IO_ACX_SLV_END_CTL, 0);
++
++#if NO_AUTO_INCREMENT
++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */
++#else
++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */
++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */
++#endif
++
++ len = 0;
++ size = le32_to_cpu(fw_image->size) & (~3);
++
++ while (likely(len < size)) {
++ v32 = be32_to_cpu(*(u32*)p);
++ p += 4;
++ len += 4;
++
++#ifdef NOPE
++#if NO_AUTO_INCREMENT
++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4);
++#endif
++ udelay(10);
++ w32 = read_reg32(adev, IO_ACX_SLV_MEM_DATA);
++#endif
++ w32 = read_slavemem32 (adev, offset + len - 4);
++
++ if (unlikely(w32 != v32)) {
++ printk("acx: FATAL: firmware upload: "
++ "data parts at offset %d don't match\n(0x%08X vs. 0x%08X)!\n"
++ "I/O timing issues or defective memory, with DWL-xx0+? "
++ "ACX_IO_WIDTH=16 may help. Please report\n",
++ len, v32, w32);
++ result = NOT_OK;
++ break;
++ }
++
++ sum += (u8)w32 + (u8)(w32>>8) + (u8)(w32>>16) + (u8)(w32>>24);
++ }
++
++ /* sum control verification */
++ if (result != NOT_OK) {
++ if (sum != le32_to_cpu(fw_image->chksum)) {
++ printk("acx: FATAL: firmware upload: "
++ "checksums don't match!\n");
++ result = NOT_OK;
++ }
++ }
++
++ return result;
++}
++
++
++/***********************************************************************
++** acxmem_s_upload_fw
++**
++** Called from acx_reset_dev
++*/
++static int
++acxmem_s_upload_fw(acx_device_t *adev)
++{
++ firmware_image_t *fw_image = NULL;
++ int res = NOT_OK;
++ int try;
++ u32 file_size;
++ char *filename = "WLANGEN.BIN";
++#ifdef PATCH_AROUND_BAD_SPOTS
++ u32 offset;
++ int i;
++ /*
++ * arm-linux-objdump -d patch.bin, or
++ * od -Ax -t x4 patch.bin after finding the bounds
++ * of the .text section with arm-linux-objdump -s patch.bin
++ */
++ u32 patch[] = {
++ 0xe584c030, 0xe59fc008,
++ 0xe92d1000, 0xe59fc004, 0xe8bd8000, 0x0000080c,
++ 0x0000aa68, 0x605a2200, 0x2c0a689c, 0x2414d80a,
++ 0x2f00689f, 0x1c27d007, 0x06241e7c, 0x2f000e24,
++ 0xe000d1f6, 0x602e6018, 0x23036468, 0x480203db,
++ 0x60ca6003, 0xbdf0750a, 0xffff0808
++ };
++#endif
++
++ FN_ENTER;
++ /* No combined image; tell common we need the radio firmware, too */
++ adev->need_radio_fw = 1;
++
++ fw_image = acx_s_read_fw(adev->dev, filename, &file_size);
++ if (!fw_image) {
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++ }
++
++ for (try = 1; try <= 5; try++) {
++ res = acxmem_s_write_fw(adev, fw_image, 0);
++ log(L_DEBUG|L_INIT, "acx_write_fw (main): %d\n", res);
++ if (OK == res) {
++ res = acxmem_s_validate_fw(adev, fw_image, 0);
++ log(L_DEBUG|L_INIT, "acx_validate_fw "
++ "(main): %d\n", res);
++ }
++
++ if (OK == res) {
++ SET_BIT(adev->dev_state_mask, ACX_STATE_FW_LOADED);
++ break;
++ }
++ printk("acx: firmware upload attempt #%d FAILED, "
++ "retrying...\n", try);
++ acx_s_msleep(1000); /* better wait for a while... */
++ }
++
++#ifdef PATCH_AROUND_BAD_SPOTS
++ /*
++ * Only want to do this if the firmware is exactly what we expect for an
++ * iPaq 4700; otherwise, bad things would ensue.
++ */
++ if ((HX4700_FIRMWARE_CHECKSUM == fw_image->chksum) ||
++ (HX4700_ALTERNATE_FIRMWARE_CHECKSUM == fw_image->chksum)) {
++ /*
++ * Put the patch after the main firmware image. 0x950c contains
++ * the ACX's idea of the end of the firmware. Use that location to
++ * load ours (which depends on that location being 0xab58) then
++ * update that location to point to after ours.
++ */
++
++ offset = read_slavemem32 (adev, 0x950c);
++
++ log (L_DEBUG, "acx: patching in at 0x%04x\n", offset);
++
++ for (i = 0; i < sizeof(patch) / sizeof(patch[0]); i++) {
++ write_slavemem32 (adev, offset, patch[i]);
++ offset += sizeof(u32);
++ }
++
++ /*
++ * Patch the instruction at 0x0804 to branch to our ARM patch at 0xab58
++ */
++ write_slavemem32 (adev, 0x0804, 0xea000000 + (0xab58-0x0804-8)/4);
++
++ /*
++ * Patch the instructions at 0x1f40 to branch to our Thumb patch at 0xab74
++ *
++ * 4a00 ldr r2, [pc, #0]
++ * 4710 bx r2
++ * .data 0xab74+1
++ */
++ write_slavemem32 (adev, 0x1f40, 0x47104a00);
++ write_slavemem32 (adev, 0x1f44, 0x0000ab74+1);
++
++ /*
++ * Bump the end of the firmware up to beyond our patch.
++ */
++ write_slavemem32 (adev, 0x950c, offset);
++
++ }
++#endif
++
++ vfree(fw_image);
++
++ FN_EXIT1(res);
++ return res;
++}
++
++
++/***********************************************************************
++** acxmem_s_upload_radio
++**
++** Uploads the appropriate radio module firmware into the card.
++*/
++int
++acxmem_s_upload_radio(acx_device_t *adev)
++{
++ acx_ie_memmap_t mm;
++ firmware_image_t *radio_image;
++ acx_cmd_radioinit_t radioinit;
++ int res = NOT_OK;
++ int try;
++ u32 offset;
++ u32 size;
++ char filename[sizeof("RADIONN.BIN")];
++
++ if (!adev->need_radio_fw) return OK;
++
++ FN_ENTER;
++
++ acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP);
++ offset = le32_to_cpu(mm.CodeEnd);
++
++ snprintf(filename, sizeof(filename), "RADIO%02x.BIN",
++ adev->radio_type);
++ radio_image = acx_s_read_fw(adev->dev, filename, &size);
++ if (!radio_image) {
++ printk("acx: can't load radio module '%s'\n", filename);
++ goto fail;
++ }
++
++ acx_s_issue_cmd(adev, ACX1xx_CMD_SLEEP, NULL, 0);
++
++ for (try = 1; try <= 5; try++) {
++ res = acxmem_s_write_fw(adev, radio_image, offset);
++ log(L_DEBUG|L_INIT, "acx_write_fw (radio): %d\n", res);
++ if (OK == res) {
++ res = acxmem_s_validate_fw(adev, radio_image, offset);
++ log(L_DEBUG|L_INIT, "acx_validate_fw (radio): %d\n", res);
++ }
++
++ if (OK == res)
++ break;
++ printk("acx: radio firmware upload attempt #%d FAILED, "
++ "retrying...\n", try);
++ acx_s_msleep(1000); /* better wait for a while... */
++ }
++
++ acx_s_issue_cmd(adev, ACX1xx_CMD_WAKE, NULL, 0);
++ radioinit.offset = cpu_to_le32(offset);
++
++ /* no endian conversion needed, remains in card CPU area: */
++ radioinit.len = radio_image->size;
++
++ vfree(radio_image);
++
++ if (OK != res)
++ goto fail;
++
++ /* will take a moment so let's have a big timeout */
++ acx_s_issue_cmd_timeo(adev, ACX1xx_CMD_RADIOINIT,
++ &radioinit, sizeof(radioinit), CMD_TIMEOUT_MS(1000));
++
++ res = acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP);
++
++fail:
++ FN_EXIT1(res);
++ return res;
++}
++
++/***********************************************************************
++** acxmem_l_reset_mac
++**
++** MAC will be reset
++** Call context: reset_dev
++*/
++static void
++acxmem_l_reset_mac(acx_device_t *adev)
++{
++ int count;
++ FN_ENTER;
++
++ /* halt eCPU */
++ set_regbits (adev, IO_ACX_ECPU_CTRL, 0x1);
++
++ /* now do soft reset of eCPU, set bit */
++ set_regbits (adev, IO_ACX_SOFT_RESET, 0x1);
++ log(L_DEBUG, "%s: enable soft reset...\n", __func__);
++
++ /* Windows driver sleeps here for a while with this sequence */
++ for (count = 0; count < 200; count++) {
++ udelay (50);
++ }
++
++ /* now clear bit again: deassert eCPU reset */
++ log(L_DEBUG, "%s: disable soft reset and go to init mode...\n", __func__);
++ clear_regbits (adev, IO_ACX_SOFT_RESET, 0x1);
++
++ /* now start a burst read from initial EEPROM */
++ set_regbits (adev, IO_ACX_EE_START, 0x1);
++
++ /*
++ * Windows driver sleeps here for a while with this sequence
++ */
++ for (count = 0; count < 200; count++) {
++ udelay (50);
++ }
++
++ /* Windows driver writes 0x10000 to register 0x808 here */
++
++ write_reg32 (adev, 0x808, 0x10000);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_s_verify_init
++*/
++static int
++acxmem_s_verify_init(acx_device_t *adev)
++{
++ int result = NOT_OK;
++ unsigned long timeout;
++
++ FN_ENTER;
++
++ timeout = jiffies + 2*HZ;
++ for (;;) {
++ u32 irqstat = read_reg32(adev, IO_ACX_IRQ_STATUS_NON_DES);
++ if ((irqstat != 0xFFFFFFFF) && (irqstat & HOST_INT_FCS_THRESHOLD)) {
++ result = OK;
++ write_reg32(adev, IO_ACX_IRQ_ACK, HOST_INT_FCS_THRESHOLD);
++ break;
++ }
++ if (time_after(jiffies, timeout))
++ break;
++ /* Init may take up to ~0.5 sec total */
++ acx_s_msleep(50);
++ }
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** A few low-level helpers
++**
++** Note: these functions are not protected by lock
++** and thus are never allowed to be called from IRQ.
++** Also they must not race with fw upload which uses same hw regs
++*/
++
++/***********************************************************************
++** acxmem_write_cmd_type_status
++*/
++
++static inline void
++acxmem_write_cmd_type_status(acx_device_t *adev, u16 type, u16 status)
++{
++ write_slavemem32 (adev, (u32) adev->cmd_area, type | (status << 16));
++ write_flush(adev);
++}
++
++
++/***********************************************************************
++** acxmem_read_cmd_type_status
++*/
++static u32
++acxmem_read_cmd_type_status(acx_device_t *adev)
++{
++ u32 cmd_type, cmd_status;
++
++ cmd_type = read_slavemem32 (adev, (u32) adev->cmd_area);
++
++ cmd_status = (cmd_type >> 16);
++ cmd_type = (u16)cmd_type;
++
++ log(L_CTL, "cmd_type:%04X cmd_status:%04X [%s]\n",
++ cmd_type, cmd_status,
++ acx_cmd_status_str(cmd_status));
++
++ return cmd_status;
++}
++
++
++/***********************************************************************
++** acxmem_s_reset_dev
++**
++** Arguments:
++** netdevice that contains the adev variable
++** Returns:
++** NOT_OK on fail
++** OK on success
++** Side effects:
++** device is hard reset
++** Call context:
++** acxmem_e_probe
++** Comment:
++** This resets the device using low level hardware calls
++** as well as uploads and verifies the firmware to the card
++*/
++
++static inline void
++init_mboxes(acx_device_t *adev)
++{
++ u32 cmd_offs, info_offs;
++
++ cmd_offs = read_reg32(adev, IO_ACX_CMD_MAILBOX_OFFS);
++ info_offs = read_reg32(adev, IO_ACX_INFO_MAILBOX_OFFS);
++ adev->cmd_area = (u8*) cmd_offs;
++ adev->info_area = (u8*) info_offs;
++ /*
++ log(L_DEBUG, "iobase2=%p\n"
++ */
++ log( L_DEBUG, "cmd_mbox_offset=%X cmd_area=%p\n"
++ "info_mbox_offset=%X info_area=%p\n",
++ cmd_offs, adev->cmd_area,
++ info_offs, adev->info_area);
++}
++
++
++static inline void
++read_eeprom_area(acx_device_t *adev)
++{
++#if ACX_DEBUG > 1
++ int offs;
++ u8 tmp;
++
++ for (offs = 0x8c; offs < 0xb9; offs++)
++ acxmem_read_eeprom_byte(adev, offs, &tmp);
++#endif
++}
++
++static int
++acxmem_s_reset_dev(acx_device_t *adev)
++{
++ const char* msg = "";
++ unsigned long flags;
++ int result = NOT_OK;
++ u16 hardware_info;
++ u16 ecpu_ctrl;
++ int count;
++ u32 tmp;
++
++ FN_ENTER;
++ /*
++ write_reg32 (adev, IO_ACX_SLV_MEM_CP, 0);
++ */
++ /* reset the device to make sure the eCPU is stopped
++ * to upload the firmware correctly */
++
++ acx_lock(adev, flags);
++
++ /* Windows driver does some funny things here */
++ /*
++ * clear bit 0x200 in register 0x2A0
++ */
++ clear_regbits (adev, 0x2A0, 0x200);
++
++ /*
++ * Set bit 0x200 in ACX_GPIO_OUT
++ */
++ set_regbits (adev, IO_ACX_GPIO_OUT, 0x200);
++
++ /*
++ * read register 0x900 until its value is 0x8400104C, sleeping
++ * in between reads if it's not immediate
++ */
++ tmp = read_reg32 (adev, REG_ACX_VENDOR_ID);
++ count = 500;
++ while (count-- && (tmp != ACX_VENDOR_ID)) {
++ mdelay (10);
++ tmp = read_reg32 (adev, REG_ACX_VENDOR_ID);
++ }
++
++ /* end what Windows driver does */
++
++ acxmem_l_reset_mac(adev);
++
++ ecpu_ctrl = read_reg32(adev, IO_ACX_ECPU_CTRL) & 1;
++ if (!ecpu_ctrl) {
++ msg = "eCPU is already running. ";
++ goto end_unlock;
++ }
++
++#ifdef WE_DONT_NEED_THAT_DO_WE
++ if (read_reg16(adev, IO_ACX_SOR_CFG) & 2) {
++ /* eCPU most likely means "embedded CPU" */
++ msg = "eCPU did not start after boot from flash. ";
++ goto end_unlock;
++ }
++
++ /* check sense on reset flags */
++ if (read_reg16(adev, IO_ACX_SOR_CFG) & 0x10) {
++ printk("%s: eCPU did not start after boot (SOR), "
++ "is this fatal?\n", adev->ndev->name);
++ }
++#endif
++ /* scan, if any, is stopped now, setting corresponding IRQ bit */
++ adev->irq_status |= HOST_INT_SCAN_COMPLETE;
++
++ acx_unlock(adev, flags);
++
++ /* need to know radio type before fw load */
++ /* Need to wait for arrival of this information in a loop,
++ * most probably since eCPU runs some init code from EEPROM
++ * (started burst read in reset_mac()) which also
++ * sets the radio type ID */
++
++ count = 0xffff;
++ do {
++ hardware_info = read_reg16(adev, IO_ACX_EEPROM_INFORMATION);
++ if (!--count) {
++ msg = "eCPU didn't indicate radio type";
++ goto end_fail;
++ }
++ cpu_relax();
++ } while (!(hardware_info & 0xff00)); /* radio type still zero? */
++ printk("ACX radio type 0x%02x\n", (hardware_info >> 8) & 0xff);
++ /* printk("DEBUG: count %d\n", count); */
++ adev->form_factor = hardware_info & 0xff;
++ adev->radio_type = hardware_info >> 8;
++
++ /* load the firmware */
++ if (OK != acxmem_s_upload_fw(adev))
++ goto end_fail;
++
++ /* acx_s_msleep(10); this one really shouldn't be required */
++
++ /* now start eCPU by clearing bit */
++ clear_regbits (adev, IO_ACX_ECPU_CTRL, 0x1);
++ log(L_DEBUG, "booted eCPU up and waiting for completion...\n");
++
++ /* Windows driver clears bit 0x200 in register 0x2A0 here */
++ clear_regbits (adev, 0x2A0, 0x200);
++
++ /* Windows driver sets bit 0x200 in ACX_GPIO_OUT here */
++ set_regbits (adev, IO_ACX_GPIO_OUT, 0x200);
++ /* wait for eCPU bootup */
++ if (OK != acxmem_s_verify_init(adev)) {
++ msg = "timeout waiting for eCPU. ";
++ goto end_fail;
++ }
++ log(L_DEBUG, "eCPU has woken up, card is ready to be configured\n");
++ init_mboxes(adev);
++ acxmem_write_cmd_type_status(adev, ACX1xx_CMD_RESET, 0);
++
++ /* test that EEPROM is readable */
++ read_eeprom_area(adev);
++
++ result = OK;
++ goto end;
++
++/* Finish error message. Indicate which function failed */
++end_unlock:
++ acx_unlock(adev, flags);
++end_fail:
++ printk("acx: %sreset_dev() FAILED\n", msg);
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acxmem_s_issue_cmd_timeo
++**
++** Sends command to fw, extract result
++**
++** NB: we do _not_ take lock inside, so be sure to not touch anything
++** which may interfere with IRQ handler operation
++**
++** TODO: busy wait is a bit silly, so:
++** 1) stop doing many iters - go to sleep after first
++** 2) go to waitqueue based approach: wait, not poll!
++*/
++#undef FUNC
++#define FUNC "issue_cmd"
++
++#if !ACX_DEBUG
++int
++acxmem_s_issue_cmd_timeo(
++ acx_device_t *adev,
++ unsigned int cmd,
++ void *buffer,
++ unsigned buflen,
++ unsigned cmd_timeout)
++{
++#else
++int
++acxmem_s_issue_cmd_timeo_debug(
++ acx_device_t *adev,
++ unsigned cmd,
++ void *buffer,
++ unsigned buflen,
++ unsigned cmd_timeout,
++ const char* cmdstr)
++{
++ unsigned long start = jiffies;
++#endif
++ const char *devname;
++ unsigned counter;
++ u16 irqtype;
++ int i, j;
++ u8 *p;
++ u16 cmd_status;
++ unsigned long timeout;
++
++ FN_ENTER;
++
++ devname = adev->ndev->name;
++ if (!devname || !devname[0] || devname[4]=='%')
++ devname = "acx";
++
++ log(L_CTL, FUNC"(cmd:%s,buflen:%u,timeout:%ums,type:0x%04X)\n",
++ cmdstr, buflen, cmd_timeout,
++ buffer ? le16_to_cpu(((acx_ie_generic_t *)buffer)->type) : -1);
++
++ if (!(adev->dev_state_mask & ACX_STATE_FW_LOADED)) {
++ printk("%s: "FUNC"(): firmware is not loaded yet, "
++ "cannot execute commands!\n", devname);
++ goto bad;
++ }
++
++ if ((acx_debug & L_DEBUG) && (cmd != ACX1xx_CMD_INTERROGATE)) {
++ printk("input buffer (len=%u):\n", buflen);
++ acx_dump_bytes(buffer, buflen);
++ }
++
++ /* wait for firmware to become idle for our command submission */
++ timeout = HZ/5;
++ counter = (timeout * 1000 / HZ) - 1; /* in ms */
++ timeout += jiffies;
++ do {
++ cmd_status = acxmem_read_cmd_type_status(adev);
++ /* Test for IDLE state */
++ if (!cmd_status)
++ break;
++ if (counter % 8 == 0) {
++ if (time_after(jiffies, timeout)) {
++ counter = 0;
++ break;
++ }
++ /* we waited 8 iterations, no luck. Sleep 8 ms */
++ acx_s_msleep(8);
++ }
++ } while (likely(--counter));
++
++ if (!counter) {
++ /* the card doesn't get idle, we're in trouble */
++ printk("%s: "FUNC"(): cmd_status is not IDLE: 0x%04X!=0\n",
++ devname, cmd_status);
++#if DUMP_IF_SLOW > 0
++ dump_acxmem (adev, 0, 0x10000);
++ panic ("not idle");
++#endif
++ goto bad;
++ } else if (counter < 190) { /* if waited >10ms... */
++ log(L_CTL|L_DEBUG, FUNC"(): waited for IDLE %dms. "
++ "Please report\n", 199 - counter);
++ }
++
++ /* now write the parameters of the command if needed */
++ if (buffer && buflen) {
++ /* if it's an INTERROGATE command, just pass the length
++ * of parameters to read, as data */
++#if CMD_DISCOVERY
++ if (cmd == ACX1xx_CMD_INTERROGATE)
++ memset_io(adev->cmd_area + 4, 0xAA, buflen);
++#endif
++ /*
++ * slave memory version
++ */
++ copy_to_slavemem (adev, (u32) (adev->cmd_area + 4), buffer,
++ (cmd == ACX1xx_CMD_INTERROGATE) ? 4 : buflen);
++ }
++ /* now write the actual command type */
++ acxmem_write_cmd_type_status(adev, cmd, 0);
++
++ /* clear CMD_COMPLETE bit. can be set only by IRQ handler: */
++ adev->irq_status &= ~HOST_INT_CMD_COMPLETE;
++
++ /* execute command */
++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_CMD);
++ write_flush(adev);
++
++ /* wait for firmware to process command */
++
++ /* Ensure nonzero and not too large timeout.
++ ** Also converts e.g. 100->99, 200->199
++ ** which is nice but not essential */
++ cmd_timeout = (cmd_timeout-1) | 1;
++ if (unlikely(cmd_timeout > 1199))
++ cmd_timeout = 1199;
++
++ /* we schedule away sometimes (timeout can be large) */
++ counter = cmd_timeout;
++ timeout = jiffies + cmd_timeout * HZ / 1000;
++ do {
++ if (!adev->irqs_active) { /* IRQ disabled: poll */
++ irqtype = read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES);
++ if (irqtype & HOST_INT_CMD_COMPLETE) {
++ write_reg16(adev, IO_ACX_IRQ_ACK,
++ HOST_INT_CMD_COMPLETE);
++ break;
++ }
++ } else { /* Wait when IRQ will set the bit */
++ irqtype = adev->irq_status;
++ if (irqtype & HOST_INT_CMD_COMPLETE)
++ break;
++ }
++
++ if (counter % 8 == 0) {
++ if (time_after(jiffies, timeout)) {
++ counter = 0;
++ break;
++ }
++ /* we waited 8 iterations, no luck. Sleep 8 ms */
++ acx_s_msleep(8);
++ }
++ } while (likely(--counter));
++
++ /* save state for debugging */
++ cmd_status = acxmem_read_cmd_type_status(adev);
++
++ /* put the card in IDLE state */
++ acxmem_write_cmd_type_status(adev, ACX1xx_CMD_RESET, 0);
++
++ if (!counter) { /* timed out! */
++ printk("%s: "FUNC"(): timed out %s for CMD_COMPLETE. "
++ "irq bits:0x%04X irq_status:0x%04X timeout:%dms "
++ "cmd_status:%d (%s)\n",
++ devname, (adev->irqs_active) ? "waiting" : "polling",
++ irqtype, adev->irq_status, cmd_timeout,
++ cmd_status, acx_cmd_status_str(cmd_status));
++ printk("%s: "FUNC"(): device irq status 0x%04x\n",
++ devname, read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES));
++ printk("%s: "FUNC"(): IO_ACX_IRQ_MASK 0x%04x IO_ACX_FEMR 0x%04x\n",
++ devname,
++ read_reg16 (adev, IO_ACX_IRQ_MASK),
++ read_reg16 (adev, IO_ACX_FEMR));
++ if (read_reg16 (adev, IO_ACX_IRQ_MASK) == 0xffff) {
++ printk ("acxmem: firmware probably hosed - reloading\n");
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
++ {
++ pm_message_t state;
++ /* acxmem_e_suspend (resume_pdev, state); */
++ acxmem_e_suspend (adev->ndev , state);
++ }
++#else
++ acxmem_e_suspend (adev, 0);
++#endif
++ {
++ resume_ndev = adev->ndev;
++ fw_resumer (NULL);
++ }
++ }
++
++ goto bad;
++ } else if (cmd_timeout - counter > 30) { /* if waited >30ms... */
++ log(L_CTL|L_DEBUG, FUNC"(): %s for CMD_COMPLETE %dms. "
++ "count:%d. Please report\n",
++ (adev->irqs_active) ? "waited" : "polled",
++ cmd_timeout - counter, counter);
++ }
++
++ if (1 != cmd_status) { /* it is not a 'Success' */
++ printk("%s: "FUNC"(): cmd_status is not SUCCESS: %d (%s). "
++ "Took %dms of %d\n",
++ devname, cmd_status, acx_cmd_status_str(cmd_status),
++ cmd_timeout - counter, cmd_timeout);
++ /* zero out result buffer
++ * WARNING: this will trash stack in case of illegally large input
++ * length! */
++ if (buflen > 388) {
++ /*
++ * 388 is maximum command length
++ */
++ printk ("invalid length 0x%08x\n", buflen);
++ buflen = 388;
++ }
++ p = (u8 *) buffer;
++ for (i = 0; i < buflen; i+= 16) {
++ printk ("%04x:", i);
++ for (j = 0; (j < 16) && (i+j < buflen); j++) {
++ printk (" %02x", *p++);
++ }
++ printk ("\n");
++ }
++ if (buffer && buflen)
++ memset(buffer, 0, buflen);
++ goto bad;
++ }
++
++ /* read in result parameters if needed */
++ if (buffer && buflen && (cmd == ACX1xx_CMD_INTERROGATE)) {
++ copy_from_slavemem (adev, buffer, (u32) (adev->cmd_area + 4), buflen);
++ if (acx_debug & L_DEBUG) {
++ printk("output buffer (len=%u): ", buflen);
++ acx_dump_bytes(buffer, buflen);
++ }
++ }
++
++/* ok: */
++ log(L_CTL, FUNC"(%s): took %ld jiffies to complete\n",
++ cmdstr, jiffies - start);
++ FN_EXIT1(OK);
++ return OK;
++
++bad:
++ /* Give enough info so that callers can avoid
++ ** printing their own diagnostic messages */
++#if ACX_DEBUG
++ printk("%s: "FUNC"(cmd:%s) FAILED\n", devname, cmdstr);
++#else
++ printk("%s: "FUNC"(cmd:0x%04X) FAILED\n", devname, cmd);
++#endif
++ dump_stack();
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***********************************************************************
++*/
++#if defined(NONESSENTIAL_FEATURES)
++typedef struct device_id {
++ unsigned char id[6];
++ char *descr;
++ char *type;
++} device_id_t;
++
++static const device_id_t
++device_ids[] =
++{
++ {
++ {'G', 'l', 'o', 'b', 'a', 'l'},
++ NULL,
++ NULL,
++ },
++ {
++ {0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
++ "uninitialized",
++ "SpeedStream SS1021 or Gigafast WF721-AEX"
++ },
++ {
++ {0x80, 0x81, 0x82, 0x83, 0x84, 0x85},
++ "non-standard",
++ "DrayTek Vigor 520"
++ },
++ {
++ {'?', '?', '?', '?', '?', '?'},
++ "non-standard",
++ "Level One WPC-0200"
++ },
++ {
++ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
++ "empty",
++ "DWL-650+ variant"
++ }
++};
++
++static void
++acx_show_card_eeprom_id(acx_device_t *adev)
++{
++ unsigned char buffer[CARD_EEPROM_ID_SIZE];
++ int i;
++
++ memset(&buffer, 0, CARD_EEPROM_ID_SIZE);
++ /* use direct EEPROM access */
++ for (i = 0; i < CARD_EEPROM_ID_SIZE; i++) {
++ if (OK != acxmem_read_eeprom_byte(adev,
++ ACX100_EEPROM_ID_OFFSET + i,
++ &buffer[i])) {
++ printk("acx: reading EEPROM FAILED\n");
++ break;
++ }
++ }
++
++ for (i = 0; i < VEC_SIZE(device_ids); i++) {
++ if (!memcmp(&buffer, device_ids[i].id, CARD_EEPROM_ID_SIZE)) {
++ if (device_ids[i].descr) {
++ printk("acx: EEPROM card ID string check "
++ "found %s card ID: is this %s?\n",
++ device_ids[i].descr, device_ids[i].type);
++ }
++ break;
++ }
++ }
++ if (i == VEC_SIZE(device_ids)) {
++ printk("acx: EEPROM card ID string check found "
++ "unknown card: expected 'Global', got '%.*s\'. "
++ "Please report\n", CARD_EEPROM_ID_SIZE, buffer);
++ }
++}
++#endif /* NONESSENTIAL_FEATURES */
++
++/***********************************************************************
++** acxmem_free_desc_queues
++**
++** Releases the queues that have been allocated, the
++** others have been initialised to NULL so this
++** function can be used if only part of the queues were allocated.
++*/
++
++void
++acxmem_free_desc_queues(acx_device_t *adev)
++{
++#define ACX_FREE_QUEUE(size, ptr, phyaddr) \
++ if (ptr) { \
++ kfree(ptr); \
++ ptr = NULL; \
++ size = 0; \
++ }
++
++ FN_ENTER;
++
++ ACX_FREE_QUEUE(adev->txhostdesc_area_size, adev->txhostdesc_start, adev->txhostdesc_startphy);
++ ACX_FREE_QUEUE(adev->txbuf_area_size, adev->txbuf_start, adev->txbuf_startphy);
++
++ adev->txdesc_start = NULL;
++
++ ACX_FREE_QUEUE(adev->rxhostdesc_area_size, adev->rxhostdesc_start, adev->rxhostdesc_startphy);
++ ACX_FREE_QUEUE(adev->rxbuf_area_size, adev->rxbuf_start, adev->rxbuf_startphy);
++
++ adev->rxdesc_start = NULL;
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_s_delete_dma_regions
++*/
++static void
++acxmem_s_delete_dma_regions(acx_device_t *adev)
++{
++ unsigned long flags;
++
++ FN_ENTER;
++ /* disable radio Tx/Rx. Shouldn't we use the firmware commands
++ * here instead? Or are we that much down the road that it's no
++ * longer possible here? */
++ /*
++ * slave memory interface really doesn't like this.
++ */
++ /*
++ write_reg16(adev, IO_ACX_ENABLE, 0);
++ */
++
++ acx_s_msleep(100);
++
++ acx_lock(adev, flags);
++ acxmem_free_desc_queues(adev);
++ acx_unlock(adev, flags);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_e_probe
++**
++** Probe routine called when a PCI device w/ matching ID is found.
++** Here's the sequence:
++** - Allocate the PCI resources.
++** - Read the PCMCIA attribute memory to make sure we have a WLAN card
++** - Reset the MAC
++** - Initialize the dev and wlan data
++** - Initialize the MAC
++**
++** pdev - ptr to pci device structure containing info about pci configuration
++** id - ptr to the device id entry that matched this device
++*/
++static const u16
++IO_ACX100[] =
++{
++ 0x0000, /* IO_ACX_SOFT_RESET */
++
++ 0x0014, /* IO_ACX_SLV_MEM_ADDR */
++ 0x0018, /* IO_ACX_SLV_MEM_DATA */
++ 0x001c, /* IO_ACX_SLV_MEM_CTL */
++ 0x0020, /* IO_ACX_SLV_END_CTL */
++
++ 0x0034, /* IO_ACX_FEMR */
++
++ 0x007c, /* IO_ACX_INT_TRIG */
++ 0x0098, /* IO_ACX_IRQ_MASK */
++ 0x00a4, /* IO_ACX_IRQ_STATUS_NON_DES */
++ 0x00a8, /* IO_ACX_IRQ_STATUS_CLEAR */
++ 0x00ac, /* IO_ACX_IRQ_ACK */
++ 0x00b0, /* IO_ACX_HINT_TRIG */
++
++ 0x0104, /* IO_ACX_ENABLE */
++
++ 0x0250, /* IO_ACX_EEPROM_CTL */
++ 0x0254, /* IO_ACX_EEPROM_ADDR */
++ 0x0258, /* IO_ACX_EEPROM_DATA */
++ 0x025c, /* IO_ACX_EEPROM_CFG */
++
++ 0x0268, /* IO_ACX_PHY_ADDR */
++ 0x026c, /* IO_ACX_PHY_DATA */
++ 0x0270, /* IO_ACX_PHY_CTL */
++
++ 0x0290, /* IO_ACX_GPIO_OE */
++
++ 0x0298, /* IO_ACX_GPIO_OUT */
++
++ 0x02a4, /* IO_ACX_CMD_MAILBOX_OFFS */
++ 0x02a8, /* IO_ACX_INFO_MAILBOX_OFFS */
++ 0x02ac, /* IO_ACX_EEPROM_INFORMATION */
++
++ 0x02d0, /* IO_ACX_EE_START */
++ 0x02d4, /* IO_ACX_SOR_CFG */
++ 0x02d8 /* IO_ACX_ECPU_CTRL */
++};
++
++static const u16
++IO_ACX111[] =
++{
++ 0x0000, /* IO_ACX_SOFT_RESET */
++
++ 0x0014, /* IO_ACX_SLV_MEM_ADDR */
++ 0x0018, /* IO_ACX_SLV_MEM_DATA */
++ 0x001c, /* IO_ACX_SLV_MEM_CTL */
++ 0x0020, /* IO_ACX_SLV_MEM_CP */
++
++ 0x0034, /* IO_ACX_FEMR */
++
++ 0x00b4, /* IO_ACX_INT_TRIG */
++ 0x00d4, /* IO_ACX_IRQ_MASK */
++ /* we do mean NON_DES (0xf0), not NON_DES_MASK which is at 0xe0: */
++ 0x00f0, /* IO_ACX_IRQ_STATUS_NON_DES */
++ 0x00e4, /* IO_ACX_IRQ_STATUS_CLEAR */
++ 0x00e8, /* IO_ACX_IRQ_ACK */
++ 0x00ec, /* IO_ACX_HINT_TRIG */
++
++ 0x01d0, /* IO_ACX_ENABLE */
++
++ 0x0338, /* IO_ACX_EEPROM_CTL */
++ 0x033c, /* IO_ACX_EEPROM_ADDR */
++ 0x0340, /* IO_ACX_EEPROM_DATA */
++ 0x0344, /* IO_ACX_EEPROM_CFG */
++
++ 0x0350, /* IO_ACX_PHY_ADDR */
++ 0x0354, /* IO_ACX_PHY_DATA */
++ 0x0358, /* IO_ACX_PHY_CTL */
++
++ 0x0374, /* IO_ACX_GPIO_OE */
++
++ 0x037c, /* IO_ACX_GPIO_OUT */
++
++ 0x0388, /* IO_ACX_CMD_MAILBOX_OFFS */
++ 0x038c, /* IO_ACX_INFO_MAILBOX_OFFS */
++ 0x0390, /* IO_ACX_EEPROM_INFORMATION */
++
++ 0x0100, /* IO_ACX_EE_START */
++ 0x0104, /* IO_ACX_SOR_CFG */
++ 0x0108, /* IO_ACX_ECPU_CTRL */
++};
++
++static void
++dummy_netdev_init(struct net_device *ndev) {}
++
++/*
++ * Most of the acx specific pieces of hardware reset.
++ */
++static int
++acxmem_complete_hw_reset (acx_device_t *adev)
++{
++ acx111_ie_configoption_t co;
++
++ /* NB: read_reg() reads may return bogus data before reset_dev(),
++ * since the firmware which directly controls large parts of the I/O
++ * registers isn't initialized yet.
++ * acx100 seems to be more affected than acx111 */
++ if (OK != acxmem_s_reset_dev (adev))
++ return -1;
++
++ if (IS_ACX100(adev)) {
++ /* ACX100: configopt struct in cmd mailbox - directly after reset */
++ copy_from_slavemem (adev, (u8*) &co, (u32) adev->cmd_area, sizeof (co));
++ }
++
++ if (OK != acx_s_init_mac(adev))
++ return -3;
++
++ if (IS_ACX111(adev)) {
++ /* ACX111: configopt struct needs to be queried after full init */
++ acx_s_interrogate(adev, &co, ACX111_IE_CONFIG_OPTIONS);
++ }
++
++ /*
++ * Set up transmit buffer administration
++ */
++ init_acx_txbuf (adev);
++
++ /*
++ * Windows driver writes 0x01000000 to register 0x288, RADIO_CTL, if the form factor
++ * is 3. It also write protects the EEPROM by writing 1<<9 to GPIO_OUT
++ */
++ if (adev->form_factor == 3) {
++ set_regbits (adev, 0x288, 0x01000000);
++ set_regbits (adev, 0x298, 1<<9);
++ }
++
++/* TODO: merge them into one function, they are called just once and are the same for pci & usb */
++ if (OK != acxmem_read_eeprom_byte(adev, 0x05, &adev->eeprom_version))
++ return -2;
++
++ acx_s_parse_configoption(adev, &co);
++ acx_s_get_firmware_version(adev); /* needs to be after acx_s_init_mac() */
++ acx_display_hardware_details(adev);
++
++ return 0;
++}
++
++static int acx_init_netdev(struct net_device *ndev, struct device *dev, int base_addr, int addr_size, int irq)
++{
++ const char *chip_name;
++ int result = -EIO;
++ int err;
++ u8 chip_type;
++ acx_device_t *adev = NULL;
++
++ FN_ENTER;
++
++ /* FIXME: prism54 calls pci_set_mwi() here,
++ * should we do/support the same? */
++
++ /* chiptype is u8 but id->driver_data is ulong
++ ** Works for now (possible values are 1 and 2) */
++ chip_type = CHIPTYPE_ACX100;
++ /* acx100 and acx111 have different PCI memory regions */
++ if (chip_type == CHIPTYPE_ACX100) {
++ chip_name = "ACX100";
++ } else if (chip_type == CHIPTYPE_ACX111) {
++ chip_name = "ACX111";
++ } else {
++ printk("acx: unknown chip type 0x%04X\n", chip_type);
++ goto fail_unknown_chiptype;
++ }
++
++ printk("acx: found %s-based wireless network card\n", chip_name);
++ log(L_ANY, "initial debug setting is 0x%04X\n", acx_debug);
++
++
++ dev_set_drvdata(dev, ndev);
++
++ ether_setup(ndev);
++
++ ndev->irq = irq;
++
++ ndev->base_addr = base_addr;
++printk (KERN_INFO "memwinbase=%lx memwinsize=%u\n",memwin.Base,memwin.Size);
++ if (addr_size == 0 || ndev->irq == 0)
++ goto fail_hw_params;
++ ndev->open = &acxmem_e_open;
++ ndev->stop = &acxmem_e_close;
++ //pdev->dev.release = &acxmem_e_release;
++ ndev->hard_start_xmit = &acx_i_start_xmit;
++ ndev->get_stats = &acx_e_get_stats;
++#if IW_HANDLER_VERSION <= 5
++ ndev->get_wireless_stats = &acx_e_get_wireless_stats;
++#endif
++ ndev->wireless_handlers = (struct iw_handler_def *)&acx_ioctl_handler_def;
++ ndev->set_multicast_list = &acxmem_i_set_multicast_list;
++ ndev->tx_timeout = &acxmem_i_tx_timeout;
++ ndev->change_mtu = &acx_e_change_mtu;
++ ndev->watchdog_timeo = 4 * HZ;
++
++ adev = ndev2adev(ndev);
++ spin_lock_init(&adev->lock); /* initial state: unlocked */
++ spin_lock_init(&adev->txbuf_lock);
++ /* We do not start with downed sem: we want PARANOID_LOCKING to work */
++ sema_init(&adev->sem, 1); /* initial state: 1 (upped) */
++ /* since nobody can see new netdev yet, we can as well
++ ** just _presume_ that we're under sem (instead of actually taking it): */
++ /* acx_sem_lock(adev); */
++ adev->dev = dev;
++ adev->ndev = ndev;
++ adev->dev_type = DEVTYPE_MEM;
++ adev->chip_type = chip_type;
++ adev->chip_name = chip_name;
++ adev->io = (CHIPTYPE_ACX100 == chip_type) ? IO_ACX100 : IO_ACX111;
++ adev->membase = (volatile u32 *) ndev->base_addr;
++ adev->iobase = (volatile u32 *) ioremap_nocache (ndev->base_addr, addr_size);
++ /* to find crashes due to weird driver access
++ * to unconfigured interface (ifup) */
++ adev->mgmt_timer.function = (void (*)(unsigned long))0x0000dead;
++
++#if defined(NONESSENTIAL_FEATURES)
++ acx_show_card_eeprom_id(adev);
++#endif /* NONESSENTIAL_FEATURES */
++
++#ifdef SET_MODULE_OWNER
++ SET_MODULE_OWNER(ndev);
++#endif
++ // need to fix that @@
++ SET_NETDEV_DEV(ndev, dev);
++
++ log(L_IRQ|L_INIT, "using IRQ %d\n", ndev->irq);
++
++ /* ok, pci setup is finished, now start initializing the card */
++
++ if (OK != acxmem_complete_hw_reset (adev))
++ goto fail_reset;
++
++ /*
++ * Set up default things for most of the card settings.
++ */
++ acx_s_set_defaults(adev);
++
++ /* Register the card, AFTER everything else has been set up,
++ * since otherwise an ioctl could step on our feet due to
++ * firmware operations happening in parallel or uninitialized data */
++ err = register_netdev(ndev);
++ if (OK != err) {
++ printk("acx: register_netdev() FAILED: %d\n", err);
++ goto fail_register_netdev;
++ }
++
++ acx_proc_register_entries(ndev);
++
++ /* Now we have our device, so make sure the kernel doesn't try
++ * to send packets even though we're not associated to a network yet */
++ acx_stop_queue(ndev, "on probe");
++ acx_carrier_off(ndev, "on probe");
++
++ /*
++ * Set up a default monitor type so that poor combinations of initialization
++ * sequences in monitor mode don't end up destroying the hardware type.
++ */
++ adev->monitor_type = ARPHRD_ETHER;
++
++ /*
++ * Register to receive inetaddr notifier changes. This will allow us to
++ * catch if the user changes the MAC address of the interface.
++ */
++ register_netdevice_notifier(&acx_netdev_notifier);
++
++ /* after register_netdev() userspace may start working with dev
++ * (in particular, on other CPUs), we only need to up the sem */
++ /* acx_sem_unlock(adev); */
++
++ printk("acx "ACX_RELEASE": net device %s, driver compiled "
++ "against wireless extensions %d and Linux %s\n",
++ ndev->name, WIRELESS_EXT, UTS_RELEASE);
++
++#if CMD_DISCOVERY
++ great_inquisitor(adev);
++#endif
++
++ result = OK;
++ goto done;
++
++ /* error paths: undo everything in reverse order... */
++
++fail_register_netdev:
++
++ acxmem_s_delete_dma_regions(adev);
++
++fail_reset:
++fail_hw_params:
++ free_netdev(ndev);
++fail_unknown_chiptype:
++
++
++done:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acxmem_e_remove
++**
++** Shut device down (if not hot unplugged)
++** and deallocate PCI resources for the acx chip.
++**
++** pdev - ptr to PCI device structure containing info about pci configuration
++*/
++static int __devexit
++acxmem_e_remove(struct pcmcia_device *link)
++{
++ struct net_device *ndev;
++ acx_device_t *adev;
++ unsigned long flags;
++
++ FN_ENTER;
++
++ ndev = ((local_info_t*)link->priv)->ndev;
++ if (!ndev) {
++ log(L_DEBUG, "%s: card is unused. Skipping any release code\n",
++ __func__);
++ goto end;
++ }
++
++ adev = ndev2adev(ndev);
++
++ /* If device wasn't hot unplugged... */
++ if (adev_present(adev)) {
++
++ acx_sem_lock(adev);
++
++ /* disable both Tx and Rx to shut radio down properly */
++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0);
++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_RX, NULL, 0);
++
++#ifdef REDUNDANT
++ /* put the eCPU to sleep to save power
++ * Halting is not possible currently,
++ * since not supported by all firmware versions */
++ acx_s_issue_cmd(adev, ACX100_CMD_SLEEP, NULL, 0);
++#endif
++ acx_lock(adev, flags);
++
++ /* disable power LED to save power :-) */
++ log(L_INIT, "switching off power LED to save power\n");
++ acxmem_l_power_led(adev, 0);
++
++ /* stop our eCPU */
++ if (IS_ACX111(adev)) {
++ /* FIXME: does this actually keep halting the eCPU?
++ * I don't think so...
++ */
++ acxmem_l_reset_mac(adev);
++ } else {
++ u16 temp;
++
++ /* halt eCPU */
++ temp = read_reg16(adev, IO_ACX_ECPU_CTRL) | 0x1;
++ write_reg16(adev, IO_ACX_ECPU_CTRL, temp);
++ write_flush(adev);
++ }
++
++ acx_unlock(adev, flags);
++
++ acx_sem_unlock(adev);
++ }
++
++
++ /*
++ * Unregister the notifier chain
++ */
++ unregister_netdevice_notifier(&acx_netdev_notifier);
++
++ /* unregister the device to not let the kernel
++ * (e.g. ioctls) access a half-deconfigured device
++ * NB: this will cause acxmem_e_close() to be called,
++ * thus we shouldn't call it under sem! */
++ log(L_INIT, "removing device %s\n", ndev->name);
++ unregister_netdev(ndev);
++
++ /* unregister_netdev ensures that no references to us left.
++ * For paranoid reasons we continue to follow the rules */
++ acx_sem_lock(adev);
++
++ if (adev->dev_state_mask & ACX_STATE_IFACE_UP) {
++ acxmem_s_down(ndev);
++ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
++ }
++
++ acx_proc_unregister_entries(ndev);
++
++ acxmem_s_delete_dma_regions(adev);
++
++ /* finally, clean up PCI bus state */
++ if (adev->iobase) iounmap((void *)adev->iobase);
++
++ acx_sem_unlock(adev);
++
++ /* Free netdev (quite late,
++ * since otherwise we might get caught off-guard
++ * by a netdev timeout handler execution
++ * expecting to see a working dev...) */
++ free_netdev(ndev);
++
++ printk ("e_remove done\n");
++end:
++ FN_EXIT0;
++
++ return 0;
++}
++
++
++/***********************************************************************
++** TODO: PM code needs to be fixed / debugged / tested.
++*/
++#ifdef CONFIG_PM
++static int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
++acxmem_e_suspend( struct net_device *ndev, pm_message_t state)
++#else
++acxmem_e_suspend( struct net_device *ndev, u32 state)
++#endif
++{
++ FN_ENTER;
++ acx_device_t *adev;
++ printk("acx: suspend handler is experimental!\n");
++ printk("sus: dev %p\n", ndev);
++
++ if (!netif_running(ndev))
++ goto end;
++ // @@ need to get it from link or something like that
++ adev = ndev2adev(ndev);
++ printk("sus: adev %p\n", adev);
++
++ acx_sem_lock(adev);
++
++ netif_device_detach(adev->ndev); /* this one cannot sleep */
++ acxmem_s_down(adev->ndev);
++ /* down() does not set it to 0xffff, but here we really want that */
++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
++ write_reg16(adev, IO_ACX_FEMR, 0x0);
++ acxmem_s_delete_dma_regions(adev);
++
++ /*
++ * Turn the ACX chip off.
++ */
++
++ acx_sem_unlock(adev);
++end:
++ FN_EXIT0;
++ return OK;
++}
++
++
++static void
++fw_resumer(struct work_struct *notused)
++{
++ acx_device_t *adev;
++ struct net_device *ndev = resume_ndev;
++
++ printk("acx: resume handler is experimental!\n");
++ printk("rsm: got dev %p\n", ndev);
++
++ if (!netif_running(ndev))
++ return;
++
++ adev = ndev2adev(ndev);
++ printk("rsm: got adev %p\n", adev);
++
++ acx_sem_lock(adev);
++
++ /*
++ * Turn on the ACX.
++ */
++
++ acxmem_complete_hw_reset (adev);
++
++ /*
++ * done by acx_s_set_defaults for initial startup
++ */
++ acxmem_set_interrupt_mask(adev);
++
++ printk ("rsm: bringing up interface\n");
++ SET_BIT (adev->set_mask, GETSET_ALL);
++ acxmem_s_up(ndev);
++ printk("rsm: acx up done\n");
++
++ /* now even reload all card parameters as they were before suspend,
++ * and possibly be back in the network again already :-)
++ */
++ /* - most settings updated in acxmem_s_up()
++ if (ACX_STATE_IFACE_UP & adev->dev_state_mask) {
++ adev->set_mask = GETSET_ALL;
++ acx_s_update_card_settings(adev);
++ printk("rsm: settings updated\n");
++ }
++ */
++ netif_device_attach(ndev);
++ printk("rsm: device attached\n");
++
++ acx_sem_unlock(adev);
++}
++
++DECLARE_WORK( fw_resume_work, fw_resumer );
++
++static int
++acxmem_e_resume(struct pcmcia_device *link)
++{
++ FN_ENTER;
++
++ //resume_pdev = pdev;
++ schedule_work( &fw_resume_work );
++
++ FN_EXIT0;
++ return OK;
++}
++#endif /* CONFIG_PM */
++
++
++/***********************************************************************
++** acxmem_s_up
++**
++** This function is called by acxmem_e_open (when ifconfig sets the device as up)
++**
++** Side effects:
++** - Enables on-card interrupt requests
++** - calls acx_s_start
++*/
++
++static void
++enable_acx_irq(acx_device_t *adev)
++{
++ FN_ENTER;
++ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask);
++ write_reg16(adev, IO_ACX_FEMR, 0x8000);
++ adev->irqs_active = 1;
++ FN_EXIT0;
++}
++
++static void
++acxmem_s_up(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++
++ FN_ENTER;
++
++ acx_lock(adev, flags);
++ enable_acx_irq(adev);
++ acx_unlock(adev, flags);
++
++ /* acx fw < 1.9.3.e has a hardware timer, and older drivers
++ ** used to use it. But we don't do that anymore, our OS
++ ** has reliable software timers */
++ init_timer(&adev->mgmt_timer);
++ adev->mgmt_timer.function = acx_i_timer;
++ adev->mgmt_timer.data = (unsigned long)adev;
++
++ /* Need to set ACX_STATE_IFACE_UP first, or else
++ ** timer won't be started by acx_set_status() */
++ SET_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ case ACX_MODE_2_STA:
++ /* actual scan cmd will happen in start() */
++ acx_set_status(adev, ACX_STATUS_1_SCANNING); break;
++ case ACX_MODE_3_AP:
++ case ACX_MODE_MONITOR:
++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED); break;
++ }
++
++ acx_s_start(adev);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_s_down
++**
++** This disables the netdevice
++**
++** Side effects:
++** - disables on-card interrupt request
++*/
++
++static void
++disable_acx_irq(acx_device_t *adev)
++{
++ FN_ENTER;
++
++ /* I guess mask is not 0xffff because acx100 won't signal
++ ** cmd completion then (needed for ifup).
++ ** Someone with acx100 please confirm */
++ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask_off);
++ write_reg16(adev, IO_ACX_FEMR, 0x0);
++ adev->irqs_active = 0;
++ FN_EXIT0;
++}
++
++static void
++acxmem_s_down(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++
++ FN_ENTER;
++
++ /* Disable IRQs first, so that IRQs cannot race with us */
++ /* then wait until interrupts have finished executing on other CPUs */
++ acx_lock(adev, flags);
++ disable_acx_irq(adev);
++ synchronize_irq(adev->pdev->irq);
++ acx_unlock(adev, flags);
++
++ /* we really don't want to have an asynchronous tasklet disturb us
++ ** after something vital for its job has been shut down, so
++ ** end all remaining work now.
++ **
++ ** NB: carrier_off (done by set_status below) would lead to
++ ** not yet fully understood deadlock in FLUSH_SCHEDULED_WORK().
++ ** That's why we do FLUSH first.
++ **
++ ** NB2: we have a bad locking bug here: FLUSH_SCHEDULED_WORK()
++ ** waits for acx_e_after_interrupt_task to complete if it is running
++ ** on another CPU, but acx_e_after_interrupt_task
++ ** will sleep on sem forever, because it is taken by us!
++ ** Work around that by temporary sem unlock.
++ ** This will fail miserably if we'll be hit by concurrent
++ ** iwconfig or something in between. TODO! */
++ acx_sem_unlock(adev);
++ FLUSH_SCHEDULED_WORK();
++ acx_sem_lock(adev);
++
++ /* This is possible:
++ ** FLUSH_SCHEDULED_WORK -> acx_e_after_interrupt_task ->
++ ** -> set_status(ASSOCIATED) -> wake_queue()
++ ** That's why we stop queue _after_ FLUSH_SCHEDULED_WORK
++ ** lock/unlock is just paranoia, maybe not needed */
++ acx_lock(adev, flags);
++ acx_stop_queue(ndev, "on ifdown");
++ acx_set_status(adev, ACX_STATUS_0_STOPPED);
++ acx_unlock(adev, flags);
++
++ /* kernel/timer.c says it's illegal to del_timer_sync()
++ ** a timer which restarts itself. We guarantee this cannot
++ ** ever happen because acx_i_timer() never does this if
++ ** status is ACX_STATUS_0_STOPPED */
++ del_timer_sync(&adev->mgmt_timer);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_e_open
++**
++** Called as a result of SIOCSIFFLAGS ioctl changing the flags bit IFF_UP
++** from clear to set. In other words: ifconfig up.
++**
++** Returns:
++** 0 success
++** >0 f/w reported error
++** <0 driver reported error
++*/
++static int
++acxmem_e_open(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int result = OK;
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++
++ acx_init_task_scheduler(adev);
++
++/* TODO: pci_set_power_state(pdev, PCI_D0); ? */
++
++#if 0
++ /* request shared IRQ handler */
++ if (request_irq(ndev->irq, acxmem_i_interrupt, SA_INTERRUPT, ndev->name, ndev)) {
++ printk("%s: request_irq FAILED\n", ndev->name);
++ result = -EAGAIN;
++ goto done;
++ }
++ set_irq_type (ndev->irq, IRQT_FALLING);
++ log(L_DEBUG|L_IRQ, "request_irq %d successful\n", ndev->irq);
++#endif
++
++ /* ifup device */
++ acxmem_s_up(ndev);
++
++ /* We don't currently have to do anything else.
++ * The setup of the MAC should be subsequently completed via
++ * the mlme commands.
++ * Higher layers know we're ready from dev->start==1 and
++ * dev->tbusy==0. Our rx path knows to pass up received/
++ * frames because of dev->flags&IFF_UP is true.
++ */
++done:
++ acx_sem_unlock(adev);
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acxmem_e_close
++**
++** Called as a result of SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
++** from set to clear. I.e. called by "ifconfig DEV down"
++**
++** Returns:
++** 0 success
++** >0 f/w reported error
++** <0 driver reported error
++*/
++static int
++acxmem_e_close(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++
++ /* ifdown device */
++ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
++ if (netif_device_present(ndev)) {
++ acxmem_s_down(ndev);
++ }
++
++ /* disable all IRQs, release shared IRQ handler */
++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
++ write_reg16(adev, IO_ACX_FEMR, 0x0);
++ free_irq(ndev->irq, ndev);
++
++/* TODO: pci_set_power_state(pdev, PCI_D3hot); ? */
++
++ /* We currently don't have to do anything else.
++ * Higher layers know we're not ready from dev->start==0 and
++ * dev->tbusy==1. Our rx path knows to not pass up received
++ * frames because of dev->flags&IFF_UP is false.
++ */
++ acx_sem_unlock(adev);
++
++ log(L_INIT, "closed device\n");
++ FN_EXIT0;
++ return OK;
++}
++
++
++/***********************************************************************
++** acxmem_i_tx_timeout
++**
++** Called from network core. Must not sleep!
++*/
++static void
++acxmem_i_tx_timeout(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++ unsigned int tx_num_cleaned;
++
++ FN_ENTER;
++
++ acx_lock(adev, flags);
++
++ /* clean processed tx descs, they may have been completely full */
++ tx_num_cleaned = acxmem_l_clean_txdesc(adev);
++
++ /* nothing cleaned, yet (almost) no free buffers available?
++ * --> clean all tx descs, no matter which status!!
++ * Note that I strongly suspect that doing emergency cleaning
++ * may confuse the firmware. This is a last ditch effort to get
++ * ANYTHING to work again...
++ *
++ * TODO: it's best to simply reset & reinit hw from scratch...
++ */
++ if ((adev->tx_free <= TX_EMERG_CLEAN) && (tx_num_cleaned == 0)) {
++ printk("%s: FAILED to free any of the many full tx buffers. "
++ "Switching to emergency freeing. "
++ "Please report!\n", ndev->name);
++ acxmem_l_clean_txdesc_emergency(adev);
++ }
++
++ if (acx_queue_stopped(ndev) && (ACX_STATUS_4_ASSOCIATED == adev->status))
++ acx_wake_queue(ndev, "after tx timeout");
++
++ /* stall may have happened due to radio drift, so recalib radio */
++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
++
++ /* do unimportant work last */
++ printk("%s: tx timeout!\n", ndev->name);
++ adev->stats.tx_errors++;
++
++ acx_unlock(adev, flags);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_i_set_multicast_list
++** FIXME: most likely needs refinement
++*/
++static void
++acxmem_i_set_multicast_list(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++
++ FN_ENTER;
++
++ acx_lock(adev, flags);
++
++ /* firmwares don't have allmulti capability,
++ * so just use promiscuous mode instead in this case. */
++ if (ndev->flags & (IFF_PROMISC|IFF_ALLMULTI)) {
++ SET_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS);
++ CLEAR_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI);
++ SET_BIT(adev->set_mask, SET_RXCONFIG);
++ /* let kernel know in case *we* needed to set promiscuous */
++ ndev->flags |= (IFF_PROMISC|IFF_ALLMULTI);
++ } else {
++ CLEAR_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS);
++ SET_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI);
++ SET_BIT(adev->set_mask, SET_RXCONFIG);
++ ndev->flags &= ~(IFF_PROMISC|IFF_ALLMULTI);
++ }
++
++ /* cannot update card settings directly here, atomic context */
++ acx_schedule_task(adev, ACX_AFTER_IRQ_UPDATE_CARD_CFG);
++
++ acx_unlock(adev, flags);
++
++ FN_EXIT0;
++}
++
++
++/***************************************************************
++** acxmem_l_process_rxdesc
++**
++** Called directly and only from the IRQ handler
++*/
++
++#if !ACX_DEBUG
++static inline void log_rxbuffer(const acx_device_t *adev) {}
++#else
++static void
++log_rxbuffer(const acx_device_t *adev)
++{
++ register const struct rxhostdesc *rxhostdesc;
++ int i;
++ /* no FN_ENTER here, we don't want that */
++
++ rxhostdesc = adev->rxhostdesc_start;
++ if (unlikely(!rxhostdesc)) return;
++ for (i = 0; i < RX_CNT; i++) {
++ if ((rxhostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN))
++ && (rxhostdesc->Status & cpu_to_le32(DESC_STATUS_FULL)))
++ printk("rx: buf %d full\n", i);
++ rxhostdesc++;
++ }
++}
++#endif
++
++static void
++acxmem_l_process_rxdesc(acx_device_t *adev)
++{
++ register rxhostdesc_t *hostdesc;
++ register rxdesc_t *rxdesc;
++ unsigned count, tail;
++ u32 addr;
++ u8 Ctl_8;
++
++ FN_ENTER;
++
++ if (unlikely(acx_debug & L_BUFR))
++ log_rxbuffer(adev);
++
++ /* First, have a loop to determine the first descriptor that's
++ * full, just in case there's a mismatch between our current
++ * rx_tail and the full descriptor we're supposed to handle. */
++ tail = adev->rx_tail;
++ count = RX_CNT;
++ while (1) {
++ hostdesc = &adev->rxhostdesc_start[tail];
++ rxdesc = &adev->rxdesc_start[tail];
++ /* advance tail regardless of outcome of the below test */
++ tail = (tail + 1) % RX_CNT;
++
++ /*
++ * Unlike the PCI interface, where the ACX can write directly to
++ * the host descriptors, on the slave memory interface we have to
++ * pull these. All we really need to do is check the Ctl_8 field
++ * in the rx descriptor on the ACX, which should be 0x11000000 if
++ * we should process it.
++ */
++ Ctl_8 = hostdesc->Ctl_16 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8));
++ if ((Ctl_8 & DESC_CTL_HOSTOWN) &&
++ (Ctl_8 & DESC_CTL_ACXDONE))
++ break; /* found it! */
++
++ if (unlikely(!--count)) /* hmm, no luck: all descs empty, bail out */
++ goto end;
++ }
++
++ /* now process descriptors, starting with the first we figured out */
++ while (1) {
++ log(L_BUFR, "rx: tail=%u Ctl_8=%02X\n", tail, Ctl_8);
++ /*
++ * If the ACX has CTL_RECLAIM set on this descriptor there
++ * is no buffer associated; it just wants us to tell it to
++ * reclaim the memory.
++ */
++ if (!(Ctl_8 & DESC_CTL_RECLAIM)) {
++
++ /*
++ * slave interface - pull data now
++ */
++ hostdesc->length = read_slavemem16 (adev, (u32) &(rxdesc->total_length));
++
++ /*
++ * hostdesc->data is an rxbuffer_t, which includes header information,
++ * but the length in the data packet doesn't. The header information
++ * takes up an additional 12 bytes, so add that to the length we copy.
++ */
++ addr = read_slavemem32 (adev, (u32) &(rxdesc->ACXMemPtr));
++ if (addr) {
++ /*
++ * How can &(rxdesc->ACXMemPtr) above ever be zero? Looks like we
++ * get that now and then - try to trap it for debug.
++ */
++ if (addr & 0xffff0000) {
++ printk("rxdesc 0x%08x\n", (u32) rxdesc);
++ dump_acxmem (adev, 0, 0x10000);
++ panic ("Bad access!");
++ }
++ chaincopy_from_slavemem (adev, (u8 *) hostdesc->data, addr,
++ hostdesc->length +
++ (u32) &((rxbuffer_t *)0)->hdr_a3);
++ acx_l_process_rxbuf(adev, hostdesc->data);
++ }
++ }
++ else {
++ printk ("rx reclaim only!\n");
++ }
++
++ hostdesc->Status = 0;
++
++ /*
++ * Let the ACX know we're done.
++ */
++ CLEAR_BIT (Ctl_8, DESC_CTL_HOSTOWN);
++ SET_BIT (Ctl_8, DESC_CTL_HOSTDONE);
++ SET_BIT (Ctl_8, DESC_CTL_RECLAIM);
++ write_slavemem8 (adev, (u32) &rxdesc->Ctl_8, Ctl_8);
++
++ /*
++ * Now tell the ACX we've finished with the receive buffer so
++ * it can finish the reclaim.
++ */
++ write_reg16 (adev, IO_ACX_INT_TRIG, INT_TRIG_RXPRC);
++
++ /* ok, descriptor is handled, now check the next descriptor */
++ hostdesc = &adev->rxhostdesc_start[tail];
++ rxdesc = &adev->rxdesc_start[tail];
++
++ Ctl_8 = hostdesc->Ctl_16 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8));
++
++ /* if next descriptor is empty, then bail out */
++ if (!(Ctl_8 & DESC_CTL_HOSTOWN) || !(Ctl_8 & DESC_CTL_ACXDONE))
++ break;
++
++ tail = (tail + 1) % RX_CNT;
++ }
++end:
++ adev->rx_tail = tail;
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_i_interrupt
++**
++** IRQ handler (atomic context, must not sleep, blah, blah)
++*/
++
++/* scan is complete. all frames now on the receive queue are valid */
++#define INFO_SCAN_COMPLETE 0x0001
++#define INFO_WEP_KEY_NOT_FOUND 0x0002
++/* hw has been reset as the result of a watchdog timer timeout */
++#define INFO_WATCH_DOG_RESET 0x0003
++/* failed to send out NULL frame from PS mode notification to AP */
++/* recommended action: try entering 802.11 PS mode again */
++#define INFO_PS_FAIL 0x0004
++/* encryption/decryption process on a packet failed */
++#define INFO_IV_ICV_FAILURE 0x0005
++
++/* Info mailbox format:
++2 bytes: type
++2 bytes: status
++more bytes may follow
++ rumors say about status:
++ 0x0000 info available (set by hw)
++ 0x0001 information received (must be set by host)
++ 0x1000 info available, mailbox overflowed (messages lost) (set by hw)
++ but in practice we've seen:
++ 0x9000 when we did not set status to 0x0001 on prev message
++ 0x1001 when we did set it
++ 0x0000 was never seen
++ conclusion: this is really a bitfield:
++ 0x1000 is 'info available' bit
++ 'mailbox overflowed' bit is 0x8000, not 0x1000
++ value of 0x0000 probably means that there are no messages at all
++ P.S. I dunno how in hell hw is supposed to notice that messages are lost -
++ it does NOT clear bit 0x0001, and this bit will probably stay forever set
++ after we set it once. Let's hope this will be fixed in firmware someday
++*/
++
++static void
++handle_info_irq(acx_device_t *adev)
++{
++#if ACX_DEBUG
++ static const char * const info_type_msg[] = {
++ "(unknown)",
++ "scan complete",
++ "WEP key not found",
++ "internal watchdog reset was done",
++ "failed to send powersave (NULL frame) notification to AP",
++ "encrypt/decrypt on a packet has failed",
++ "TKIP tx keys disabled",
++ "TKIP rx keys disabled",
++ "TKIP rx: key ID not found",
++ "???",
++ "???",
++ "???",
++ "???",
++ "???",
++ "???",
++ "???",
++ "TKIP IV value exceeds thresh"
++ };
++#endif
++ u32 info_type, info_status;
++
++ info_type = read_slavemem32 (adev, (u32) adev->info_area);
++
++ info_status = (info_type >> 16);
++ info_type = (u16)info_type;
++
++ /* inform fw that we have read this info message */
++ write_slavemem32(adev, (u32) adev->info_area, info_type | 0x00010000);
++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_INFOACK);
++ write_flush(adev);
++
++ log(L_CTL, "info_type:%04X info_status:%04X\n",
++ info_type, info_status);
++
++ log(L_IRQ, "got Info IRQ: status %04X type %04X: %s\n",
++ info_status, info_type,
++ info_type_msg[(info_type >= VEC_SIZE(info_type_msg)) ?
++ 0 : info_type]
++ );
++}
++
++
++static void
++log_unusual_irq(u16 irqtype) {
++ /*
++ if (!printk_ratelimit())
++ return;
++ */
++
++ printk("acx: got");
++ if (irqtype & HOST_INT_TX_XFER) {
++ printk(" Tx_Xfer");
++ }
++ if (irqtype & HOST_INT_RX_COMPLETE) {
++ printk(" Rx_Complete");
++ }
++ if (irqtype & HOST_INT_DTIM) {
++ printk(" DTIM");
++ }
++ if (irqtype & HOST_INT_BEACON) {
++ printk(" Beacon");
++ }
++ if (irqtype & HOST_INT_TIMER) {
++ log(L_IRQ, " Timer");
++ }
++ if (irqtype & HOST_INT_KEY_NOT_FOUND) {
++ printk(" Key_Not_Found");
++ }
++ if (irqtype & HOST_INT_IV_ICV_FAILURE) {
++ printk(" IV_ICV_Failure (crypto)");
++ }
++ /* HOST_INT_CMD_COMPLETE */
++ /* HOST_INT_INFO */
++ if (irqtype & HOST_INT_OVERFLOW) {
++ printk(" Overflow");
++ }
++ if (irqtype & HOST_INT_PROCESS_ERROR) {
++ printk(" Process_Error");
++ }
++ /* HOST_INT_SCAN_COMPLETE */
++ if (irqtype & HOST_INT_FCS_THRESHOLD) {
++ printk(" FCS_Threshold");
++ }
++ if (irqtype & HOST_INT_UNKNOWN) {
++ printk(" Unknown");
++ }
++ printk(" IRQ(s)\n");
++}
++
++
++static void
++update_link_quality_led(acx_device_t *adev)
++{
++ int qual;
++
++ qual = acx_signal_determine_quality(adev->wstats.qual.level, adev->wstats.qual.noise);
++ if (qual > adev->brange_max_quality)
++ qual = adev->brange_max_quality;
++
++ if (time_after(jiffies, adev->brange_time_last_state_change +
++ (HZ/2 - HZ/2 * (unsigned long)qual / adev->brange_max_quality ) )) {
++ acxmem_l_power_led(adev, (adev->brange_last_state == 0));
++ adev->brange_last_state ^= 1; /* toggle */
++ adev->brange_time_last_state_change = jiffies;
++ }
++}
++
++
++#define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* a la orinoco.c */
++
++static irqreturn_t
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
++acxmem_i_interrupt(int irq, void *dev_id)
++#else
++acxmwm_i_interrupt(int irq, void *dev_id, struct pt_regs *regs)
++#endif
++{
++ acx_device_t *adev;
++ unsigned long flags;
++ unsigned int irqcount = MAX_IRQLOOPS_PER_JIFFY;
++ register u16 irqtype;
++ u16 unmasked;
++
++ adev = ndev2adev((struct net_device*)dev_id);
++
++ /* LOCKING: can just spin_lock() since IRQs are disabled anyway.
++ * I am paranoid */
++ acx_lock(adev, flags);
++
++ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR);
++ if (unlikely(0xffff == unmasked)) {
++ /* 0xffff value hints at missing hardware,
++ * so don't do anything.
++ * Not very clean, but other drivers do the same... */
++ log(L_IRQ, "IRQ type:FFFF - device removed? IRQ_NONE\n");
++ goto none;
++ }
++
++ /* We will check only "interesting" IRQ types */
++ irqtype = unmasked & ~adev->irq_mask;
++ if (!irqtype) {
++ /* We are on a shared IRQ line and it wasn't our IRQ */
++ log(L_IRQ, "IRQ type:%04X, mask:%04X - all are masked, IRQ_NONE\n",
++ unmasked, adev->irq_mask);
++ goto none;
++ }
++
++ /* Done here because IRQ_NONEs taking three lines of log
++ ** drive me crazy */
++ FN_ENTER;
++
++#define IRQ_ITERATE 1
++#if IRQ_ITERATE
++if (jiffies != adev->irq_last_jiffies) {
++ adev->irq_loops_this_jiffy = 0;
++ adev->irq_last_jiffies = jiffies;
++}
++
++/* safety condition; we'll normally abort loop below
++ * in case no IRQ type occurred */
++while (likely(--irqcount)) {
++#endif
++ /* ACK all IRQs ASAP */
++ write_reg16(adev, IO_ACX_IRQ_ACK, 0xffff);
++
++ log(L_IRQ, "IRQ type:%04X, mask:%04X, type & ~mask:%04X\n",
++ unmasked, adev->irq_mask, irqtype);
++
++ /* Handle most important IRQ types first */
++ if (irqtype & HOST_INT_RX_DATA) {
++ log(L_IRQ, "got Rx_Data IRQ\n");
++ acxmem_l_process_rxdesc(adev);
++ }
++ if (irqtype & HOST_INT_TX_COMPLETE) {
++ log(L_IRQ, "got Tx_Complete IRQ\n");
++ /* don't clean up on each Tx complete, wait a bit
++ * unless we're going towards full, in which case
++ * we do it immediately, too (otherwise we might lockup
++ * with a full Tx buffer if we go into
++ * acxmem_l_clean_txdesc() at a time when we won't wakeup
++ * the net queue in there for some reason...) */
++ if (adev->tx_free <= TX_START_CLEAN) {
++#if TX_CLEANUP_IN_SOFTIRQ
++ acx_schedule_task(adev, ACX_AFTER_IRQ_TX_CLEANUP);
++#else
++ acxmem_l_clean_txdesc(adev);
++#endif
++ }
++ }
++
++ /* Less frequent ones */
++ if (irqtype & (0
++ | HOST_INT_CMD_COMPLETE
++ | HOST_INT_INFO
++ | HOST_INT_SCAN_COMPLETE
++ )) {
++ if (irqtype & HOST_INT_CMD_COMPLETE) {
++ log(L_IRQ, "got Command_Complete IRQ\n");
++ /* save the state for the running issue_cmd() */
++ SET_BIT(adev->irq_status, HOST_INT_CMD_COMPLETE);
++ }
++ if (irqtype & HOST_INT_INFO) {
++ handle_info_irq(adev);
++ }
++ if (irqtype & HOST_INT_SCAN_COMPLETE) {
++ log(L_IRQ, "got Scan_Complete IRQ\n");
++ /* need to do that in process context */
++ acx_schedule_task(adev, ACX_AFTER_IRQ_COMPLETE_SCAN);
++ /* remember that fw is not scanning anymore */
++ SET_BIT(adev->irq_status, HOST_INT_SCAN_COMPLETE);
++ }
++ }
++
++ /* These we just log, but either they happen rarely
++ * or we keep them masked out */
++ if (irqtype & (0
++ /* | HOST_INT_RX_DATA */
++ /* | HOST_INT_TX_COMPLETE */
++ | HOST_INT_TX_XFER
++ | HOST_INT_RX_COMPLETE
++ | HOST_INT_DTIM
++ | HOST_INT_BEACON
++ | HOST_INT_TIMER
++ | HOST_INT_KEY_NOT_FOUND
++ | HOST_INT_IV_ICV_FAILURE
++ /* | HOST_INT_CMD_COMPLETE */
++ /* | HOST_INT_INFO */
++ | HOST_INT_OVERFLOW
++ | HOST_INT_PROCESS_ERROR
++ /* | HOST_INT_SCAN_COMPLETE */
++ | HOST_INT_FCS_THRESHOLD
++ | HOST_INT_UNKNOWN
++ )) {
++ log_unusual_irq(irqtype);
++ }
++
++#if IRQ_ITERATE
++ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR);
++ irqtype = unmasked & ~adev->irq_mask;
++ /* Bail out if no new IRQ bits or if all are masked out */
++ if (!irqtype)
++ break;
++
++ if (unlikely(++adev->irq_loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY)) {
++ printk(KERN_ERR "acx: too many interrupts per jiffy!\n");
++ /* Looks like card floods us with IRQs! Try to stop that */
++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
++ /* This will short-circuit all future attempts to handle IRQ.
++ * We cant do much more... */
++ adev->irq_mask = 0;
++ break;
++ }
++}
++#endif
++ /* Routine to perform blink with range */
++ if (unlikely(adev->led_power == 2))
++ update_link_quality_led(adev);
++
++/* handled: */
++ /* write_flush(adev); - not needed, last op was read anyway */
++ acx_unlock(adev, flags);
++ FN_EXIT0;
++ return IRQ_HANDLED;
++
++none:
++ acx_unlock(adev, flags);
++ return IRQ_NONE;
++}
++
++
++/***********************************************************************
++** acxmem_l_power_led
++*/
++void
++acxmem_l_power_led(acx_device_t *adev, int enable)
++{
++ u16 gpio_pled = IS_ACX111(adev) ? 0x0040 : 0x0800;
++
++ /* A hack. Not moving message rate limiting to adev->xxx
++ * (it's only a debug message after all) */
++ static int rate_limit = 0;
++
++ if (rate_limit++ < 3)
++ log(L_IOCTL, "Please report in case toggling the power "
++ "LED doesn't work for your card!\n");
++ if (enable)
++ write_reg16(adev, IO_ACX_GPIO_OUT,
++ read_reg16(adev, IO_ACX_GPIO_OUT) & ~gpio_pled);
++ else
++ write_reg16(adev, IO_ACX_GPIO_OUT,
++ read_reg16(adev, IO_ACX_GPIO_OUT) | gpio_pled);
++}
++
++
++/***********************************************************************
++** Ioctls
++*/
++
++/***********************************************************************
++*/
++int
++acx111pci_ioctl_info(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ struct iw_param *vwrq,
++ char *extra)
++{
++#if ACX_DEBUG > 1
++ acx_device_t *adev = ndev2adev(ndev);
++ rxdesc_t *rxdesc;
++ txdesc_t *txdesc;
++ rxhostdesc_t *rxhostdesc;
++ txhostdesc_t *txhostdesc;
++ struct acx111_ie_memoryconfig memconf;
++ struct acx111_ie_queueconfig queueconf;
++ unsigned long flags;
++ int i;
++ char memmap[0x34];
++ char rxconfig[0x8];
++ char fcserror[0x8];
++ char ratefallback[0x5];
++
++ if ( !(acx_debug & (L_IOCTL|L_DEBUG)) )
++ return OK;
++ /* using printk() since we checked debug flag already */
++
++ acx_sem_lock(adev);
++
++ if (!IS_ACX111(adev)) {
++ printk("acx111-specific function called "
++ "with non-acx111 chip, aborting\n");
++ goto end_ok;
++ }
++
++ /* get Acx111 Memory Configuration */
++ memset(&memconf, 0, sizeof(memconf));
++ /* BTW, fails with 12 (Write only) error code.
++ ** Retained for easy testing of issue_cmd error handling :) */
++ printk ("Interrogating queue config\n");
++ acx_s_interrogate(adev, &memconf, ACX1xx_IE_QUEUE_CONFIG);
++ printk ("done with queue config\n");
++
++ /* get Acx111 Queue Configuration */
++ memset(&queueconf, 0, sizeof(queueconf));
++ printk ("Interrogating mem config options\n");
++ acx_s_interrogate(adev, &queueconf, ACX1xx_IE_MEMORY_CONFIG_OPTIONS);
++ printk ("done with mem config options\n");
++
++ /* get Acx111 Memory Map */
++ memset(memmap, 0, sizeof(memmap));
++ printk ("Interrogating mem map\n");
++ acx_s_interrogate(adev, &memmap, ACX1xx_IE_MEMORY_MAP);
++ printk ("done with mem map\n");
++
++ /* get Acx111 Rx Config */
++ memset(rxconfig, 0, sizeof(rxconfig));
++ printk ("Interrogating rxconfig\n");
++ acx_s_interrogate(adev, &rxconfig, ACX1xx_IE_RXCONFIG);
++ printk ("done with queue rxconfig\n");
++
++ /* get Acx111 fcs error count */
++ memset(fcserror, 0, sizeof(fcserror));
++ printk ("Interrogating fcs err count\n");
++ acx_s_interrogate(adev, &fcserror, ACX1xx_IE_FCS_ERROR_COUNT);
++ printk ("done with err count\n");
++
++ /* get Acx111 rate fallback */
++ memset(ratefallback, 0, sizeof(ratefallback));
++ printk ("Interrogating rate fallback\n");
++ acx_s_interrogate(adev, &ratefallback, ACX1xx_IE_RATE_FALLBACK);
++ printk ("done with rate fallback\n");
++
++ /* force occurrence of a beacon interrupt */
++ /* TODO: comment why is this necessary */
++ write_reg16(adev, IO_ACX_HINT_TRIG, HOST_INT_BEACON);
++
++ /* dump Acx111 Mem Configuration */
++ printk("dump mem config:\n"
++ "data read: %d, struct size: %d\n"
++ "Number of stations: %1X\n"
++ "Memory block size: %1X\n"
++ "tx/rx memory block allocation: %1X\n"
++ "count rx: %X / tx: %X queues\n"
++ "options %1X\n"
++ "fragmentation %1X\n"
++ "Rx Queue 1 Count Descriptors: %X\n"
++ "Rx Queue 1 Host Memory Start: %X\n"
++ "Tx Queue 1 Count Descriptors: %X\n"
++ "Tx Queue 1 Attributes: %X\n",
++ memconf.len, (int) sizeof(memconf),
++ memconf.no_of_stations,
++ memconf.memory_block_size,
++ memconf.tx_rx_memory_block_allocation,
++ memconf.count_rx_queues, memconf.count_tx_queues,
++ memconf.options,
++ memconf.fragmentation,
++ memconf.rx_queue1_count_descs,
++ acx2cpu(memconf.rx_queue1_host_rx_start),
++ memconf.tx_queue1_count_descs,
++ memconf.tx_queue1_attributes);
++
++ /* dump Acx111 Queue Configuration */
++ printk("dump queue head:\n"
++ "data read: %d, struct size: %d\n"
++ "tx_memory_block_address (from card): %X\n"
++ "rx_memory_block_address (from card): %X\n"
++ "rx1_queue address (from card): %X\n"
++ "tx1_queue address (from card): %X\n"
++ "tx1_queue attributes (from card): %X\n",
++ queueconf.len, (int) sizeof(queueconf),
++ queueconf.tx_memory_block_address,
++ queueconf.rx_memory_block_address,
++ queueconf.rx1_queue_address,
++ queueconf.tx1_queue_address,
++ queueconf.tx1_attributes);
++
++ /* dump Acx111 Mem Map */
++ printk("dump mem map:\n"
++ "data read: %d, struct size: %d\n"
++ "Code start: %X\n"
++ "Code end: %X\n"
++ "WEP default key start: %X\n"
++ "WEP default key end: %X\n"
++ "STA table start: %X\n"
++ "STA table end: %X\n"
++ "Packet template start: %X\n"
++ "Packet template end: %X\n"
++ "Queue memory start: %X\n"
++ "Queue memory end: %X\n"
++ "Packet memory pool start: %X\n"
++ "Packet memory pool end: %X\n"
++ "iobase: %p\n"
++ "iobase2: %p\n",
++ *((u16 *)&memmap[0x02]), (int) sizeof(memmap),
++ *((u32 *)&memmap[0x04]),
++ *((u32 *)&memmap[0x08]),
++ *((u32 *)&memmap[0x0C]),
++ *((u32 *)&memmap[0x10]),
++ *((u32 *)&memmap[0x14]),
++ *((u32 *)&memmap[0x18]),
++ *((u32 *)&memmap[0x1C]),
++ *((u32 *)&memmap[0x20]),
++ *((u32 *)&memmap[0x24]),
++ *((u32 *)&memmap[0x28]),
++ *((u32 *)&memmap[0x2C]),
++ *((u32 *)&memmap[0x30]),
++ adev->iobase,
++ adev->iobase2);
++
++ /* dump Acx111 Rx Config */
++ printk("dump rx config:\n"
++ "data read: %d, struct size: %d\n"
++ "rx config: %X\n"
++ "rx filter config: %X\n",
++ *((u16 *)&rxconfig[0x02]), (int) sizeof(rxconfig),
++ *((u16 *)&rxconfig[0x04]),
++ *((u16 *)&rxconfig[0x06]));
++
++ /* dump Acx111 fcs error */
++ printk("dump fcserror:\n"
++ "data read: %d, struct size: %d\n"
++ "fcserrors: %X\n",
++ *((u16 *)&fcserror[0x02]), (int) sizeof(fcserror),
++ *((u32 *)&fcserror[0x04]));
++
++ /* dump Acx111 rate fallback */
++ printk("dump rate fallback:\n"
++ "data read: %d, struct size: %d\n"
++ "ratefallback: %X\n",
++ *((u16 *)&ratefallback[0x02]), (int) sizeof(ratefallback),
++ *((u8 *)&ratefallback[0x04]));
++
++ /* protect against IRQ */
++ acx_lock(adev, flags);
++
++ /* dump acx111 internal rx descriptor ring buffer */
++ rxdesc = adev->rxdesc_start;
++
++ /* loop over complete receive pool */
++ if (rxdesc) for (i = 0; i < RX_CNT; i++) {
++ printk("\ndump internal rxdesc %d:\n"
++ "mem pos %p\n"
++ "next 0x%X\n"
++ "acx mem pointer (dynamic) 0x%X\n"
++ "CTL (dynamic) 0x%X\n"
++ "Rate (dynamic) 0x%X\n"
++ "RxStatus (dynamic) 0x%X\n"
++ "Mod/Pre (dynamic) 0x%X\n",
++ i,
++ rxdesc,
++ acx2cpu(rxdesc->pNextDesc),
++ acx2cpu(rxdesc->ACXMemPtr),
++ rxdesc->Ctl_8,
++ rxdesc->rate,
++ rxdesc->error,
++ rxdesc->SNR);
++ rxdesc++;
++ }
++
++ /* dump host rx descriptor ring buffer */
++
++ rxhostdesc = adev->rxhostdesc_start;
++
++ /* loop over complete receive pool */
++ if (rxhostdesc) for (i = 0; i < RX_CNT; i++) {
++ printk("\ndump host rxdesc %d:\n"
++ "mem pos %p\n"
++ "buffer mem pos 0x%X\n"
++ "buffer mem offset 0x%X\n"
++ "CTL 0x%X\n"
++ "Length 0x%X\n"
++ "next 0x%X\n"
++ "Status 0x%X\n",
++ i,
++ rxhostdesc,
++ acx2cpu(rxhostdesc->data_phy),
++ rxhostdesc->data_offset,
++ le16_to_cpu(rxhostdesc->Ctl_16),
++ le16_to_cpu(rxhostdesc->length),
++ acx2cpu(rxhostdesc->desc_phy_next),
++ rxhostdesc->Status);
++ rxhostdesc++;
++ }
++
++ /* dump acx111 internal tx descriptor ring buffer */
++ txdesc = adev->txdesc_start;
++
++ /* loop over complete transmit pool */
++ if (txdesc) for (i = 0; i < TX_CNT; i++) {
++ printk("\ndump internal txdesc %d:\n"
++ "size 0x%X\n"
++ "mem pos %p\n"
++ "next 0x%X\n"
++ "acx mem pointer (dynamic) 0x%X\n"
++ "host mem pointer (dynamic) 0x%X\n"
++ "length (dynamic) 0x%X\n"
++ "CTL (dynamic) 0x%X\n"
++ "CTL2 (dynamic) 0x%X\n"
++ "Status (dynamic) 0x%X\n"
++ "Rate (dynamic) 0x%X\n",
++ i,
++ (int) sizeof(struct txdesc),
++ txdesc,
++ acx2cpu(txdesc->pNextDesc),
++ acx2cpu(txdesc->AcxMemPtr),
++ acx2cpu(txdesc->HostMemPtr),
++ le16_to_cpu(txdesc->total_length),
++ txdesc->Ctl_8,
++ txdesc->Ctl2_8, txdesc->error,
++ txdesc->u.r1.rate);
++ txdesc = advance_txdesc(adev, txdesc, 1);
++ }
++
++ /* dump host tx descriptor ring buffer */
++
++ txhostdesc = adev->txhostdesc_start;
++
++ /* loop over complete host send pool */
++ if (txhostdesc) for (i = 0; i < TX_CNT * 2; i++) {
++ printk("\ndump host txdesc %d:\n"
++ "mem pos %p\n"
++ "buffer mem pos 0x%X\n"
++ "buffer mem offset 0x%X\n"
++ "CTL 0x%X\n"
++ "Length 0x%X\n"
++ "next 0x%X\n"
++ "Status 0x%X\n",
++ i,
++ txhostdesc,
++ acx2cpu(txhostdesc->data_phy),
++ txhostdesc->data_offset,
++ le16_to_cpu(txhostdesc->Ctl_16),
++ le16_to_cpu(txhostdesc->length),
++ acx2cpu(txhostdesc->desc_phy_next),
++ le32_to_cpu(txhostdesc->Status));
++ txhostdesc++;
++ }
++
++ /* write_reg16(adev, 0xb4, 0x4); */
++
++ acx_unlock(adev, flags);
++end_ok:
++
++ acx_sem_unlock(adev);
++#endif /* ACX_DEBUG */
++ return OK;
++}
++
++
++/***********************************************************************
++*/
++int
++acx100mem_ioctl_set_phy_amp_bias(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ struct iw_param *vwrq,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++ u16 gpio_old;
++
++ if (!IS_ACX100(adev)) {
++ /* WARNING!!!
++ * Removing this check *might* damage
++ * hardware, since we're tweaking GPIOs here after all!!!
++ * You've been warned...
++ * WARNING!!! */
++ printk("acx: sorry, setting bias level for non-acx100 "
++ "is not supported yet\n");
++ return OK;
++ }
++
++ if (*extra > 7) {
++ printk("acx: invalid bias parameter, range is 0-7\n");
++ return -EINVAL;
++ }
++
++ acx_sem_lock(adev);
++
++ /* Need to lock accesses to [IO_ACX_GPIO_OUT]:
++ * IRQ handler uses it to update LED */
++ acx_lock(adev, flags);
++ gpio_old = read_reg16(adev, IO_ACX_GPIO_OUT);
++ write_reg16(adev, IO_ACX_GPIO_OUT, (gpio_old & 0xf8ff) | ((u16)*extra << 8));
++ acx_unlock(adev, flags);
++
++ log(L_DEBUG, "gpio_old: 0x%04X\n", gpio_old);
++ printk("%s: PHY power amplifier bias: old:%d, new:%d\n",
++ ndev->name,
++ (gpio_old & 0x0700) >> 8, (unsigned char)*extra);
++
++ acx_sem_unlock(adev);
++
++ return OK;
++}
++
++/***************************************************************
++** acxmem_l_alloc_tx
++** Actually returns a txdesc_t* ptr
++**
++** FIXME: in case of fragments, should allocate multiple descrs
++** after figuring out how many we need and whether we still have
++** sufficiently many.
++*/
++tx_t*
++acxmem_l_alloc_tx(acx_device_t *adev)
++{
++ struct txdesc *txdesc;
++ unsigned head;
++ u8 ctl8;
++ static int txattempts = 0;
++
++ FN_ENTER;
++
++ if (unlikely(!adev->tx_free)) {
++ printk("acx: BUG: no free txdesc left\n");
++ /*
++ * Probably the ACX ignored a transmit attempt and now there's a packet
++ * sitting in the queue we think should be transmitting but the ACX doesn't
++ * know about.
++ * On the first pass, send the ACX a TxProc interrupt to try moving
++ * things along, and if that doesn't work (ie, we get called again) completely
++ * flush the transmit queue.
++ */
++ if (txattempts < 10) {
++ txattempts++;
++ printk ("acx: trying to wake up ACX\n");
++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_TXPRC);
++ write_flush(adev); }
++ else {
++ txattempts = 0;
++ printk ("acx: flushing transmit queue.\n");
++ acxmem_l_clean_txdesc_emergency (adev);
++ }
++ txdesc = NULL;
++ goto end;
++ }
++
++ /*
++ * Make a quick check to see if there is transmit buffer space on
++ * the ACX. This can't guarantee there is enough space for the packet
++ * since we don't yet know how big it is, but it will prevent at least some
++ * annoyances.
++ */
++ if (!adev->acx_txbuf_blocks_free) {
++ txdesc = NULL;
++ goto end;
++ }
++
++ head = adev->tx_head;
++ /*
++ * txdesc points to ACX memory
++ */
++ txdesc = get_txdesc(adev, head);
++ ctl8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
++
++ /*
++ * If we don't own the buffer (HOSTOWN) it is certainly not free; however,
++ * we may have previously thought we had enough memory to send
++ * a packet, allocated the buffer then gave up when we found not enough
++ * transmit buffer space on the ACX. In that case, HOSTOWN and
++ * ACXDONE will both be set.
++ */
++ if (unlikely(DESC_CTL_HOSTOWN != (ctl8 & DESC_CTL_HOSTOWN))) {
++ /* whoops, descr at current index is not free, so probably
++ * ring buffer already full */
++ printk("acx: BUG: tx_head:%d Ctl8:0x%02X - failed to find "
++ "free txdesc\n", head, ctl8);
++ txdesc = NULL;
++ goto end;
++ }
++
++ /* Needed in case txdesc won't be eventually submitted for tx */
++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_ACXDONE_HOSTOWN);
++
++ adev->tx_free--;
++ log(L_BUFT, "tx: got desc %u, %u remain\n",
++ head, adev->tx_free);
++ /* Keep a few free descs between head and tail of tx ring.
++ ** It is not absolutely needed, just feels safer */
++ if (adev->tx_free < TX_STOP_QUEUE) {
++ log(L_BUF, "stop queue (%u tx desc left)\n",
++ adev->tx_free);
++ acx_stop_queue(adev->ndev, NULL);
++ }
++
++ /* returning current descriptor, so advance to next free one */
++ adev->tx_head = (head + 1) % TX_CNT;
++end:
++ FN_EXIT0;
++
++ return (tx_t*)txdesc;
++}
++
++
++/***************************************************************
++** acxmem_l_dealloc_tx
++** Clears out a previously allocatedvoid acxmem_l_dealloc_tx(tx_t *tx_opaque);
++ transmit descriptor. The ACX
++** can get confused if we skip transmit descriptors in the queue,
++** so when we don't need a descriptor return it to its original
++** state and move the queue head pointer back.
++**
++*/
++void
++acxmem_l_dealloc_tx(acx_device_t *adev, tx_t *tx_opaque)
++{
++ /*
++ * txdesc is the address of the descriptor on the ACX.
++ */
++ txdesc_t *txdesc = (txdesc_t*)tx_opaque;
++ txdesc_t tmptxdesc;
++ int index;
++
++ memset (&tmptxdesc, 0, sizeof(tmptxdesc));
++ tmptxdesc.Ctl_8 = DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG;
++ tmptxdesc.u.r1.rate = 0x0a;
++
++ /*
++ * Clear out all of the transmit descriptor except for the next pointer
++ */
++ copy_to_slavemem (adev, (u32) &(txdesc->HostMemPtr),
++ (u8 *) &(tmptxdesc.HostMemPtr),
++ sizeof (tmptxdesc) - sizeof(tmptxdesc.pNextDesc));
++
++ /*
++ * This is only called immediately after we've allocated, so we should
++ * be able to set the head back to this descriptor.
++ */
++ index = ((u8*) txdesc - (u8*)adev->txdesc_start) / adev->txdesc_size;
++ printk ("acx_dealloc: moving head from %d to %d\n", adev->tx_head, index);
++ adev->tx_head = index;
++}
++
++
++/***********************************************************************
++*/
++void*
++acxmem_l_get_txbuf(acx_device_t *adev, tx_t* tx_opaque)
++{
++ return get_txhostdesc(adev, (txdesc_t*)tx_opaque)->data;
++}
++
++
++/***********************************************************************
++** acxmem_l_tx_data
++**
++** Can be called from IRQ (rx -> (AP bridging or mgmt response) -> tx).
++** Can be called from acx_i_start_xmit (data frames from net core).
++**
++** FIXME: in case of fragments, should loop over the number of
++** pre-allocated tx descrs, properly setting up transfer data and
++** CTL_xxx flags according to fragment number.
++*/
++void
++acxmem_update_queue_indicator (acx_device_t *adev, int txqueue)
++{
++#ifdef USING_MORE_THAN_ONE_TRANSMIT_QUEUE
++ u32 indicator;
++ unsigned long flags;
++ int count;
++
++ /*
++ * Can't handle an interrupt while we're fiddling with the ACX's lock,
++ * according to TI. The ACX is supposed to hold fw_lock for at most
++ * 500ns.
++ */
++ local_irq_save (flags);
++
++ /*
++ * Wait for ACX to release the lock (at most 500ns).
++ */
++ count = 0;
++ while (read_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->fw_lock))
++ && (count++ < 50)) {
++ ndelay (10);
++ }
++ if (count < 50) {
++
++ /*
++ * Take out the host lock - anything non-zero will work, so don't worry about
++ * be/le
++ */
++ write_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->host_lock), 1);
++
++ /*
++ * Avoid a race condition
++ */
++ count = 0;
++ while (read_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->fw_lock))
++ && (count++ < 50)) {
++ ndelay (10);
++ }
++
++ if (count < 50) {
++ /*
++ * Mark the queue active
++ */
++ indicator = read_slavemem32 (adev, (u32) &(adev->acx_queue_indicator->indicator));
++ indicator |= cpu_to_le32 (1 << txqueue);
++ write_slavemem32 (adev, (u32) &(adev->acx_queue_indicator->indicator), indicator);
++ }
++
++ /*
++ * Release the host lock
++ */
++ write_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->host_lock), 0);
++
++ }
++
++ /*
++ * Restore interrupts
++ */
++ local_irq_restore (flags);
++#endif
++}
++
++void
++acxmem_l_tx_data(acx_device_t *adev, tx_t* tx_opaque, int len)
++{
++ /*
++ * txdesc is the address on the ACX
++ */
++ txdesc_t *txdesc = (txdesc_t*)tx_opaque;
++ txhostdesc_t *hostdesc1, *hostdesc2;
++ client_t *clt;
++ u16 rate_cur;
++ u8 Ctl_8, Ctl2_8;
++ u32 addr;
++
++ FN_ENTER;
++ /* fw doesn't tx such packets anyhow */
++ if (unlikely(len < WLAN_HDR_A3_LEN))
++ goto end;
++
++ hostdesc1 = get_txhostdesc(adev, txdesc);
++ /* modify flag status in separate variable to be able to write it back
++ * in one big swoop later (also in order to have less device memory
++ * accesses) */
++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
++ Ctl2_8 = 0; /* really need to init it to 0, not txdesc->Ctl2_8, it seems */
++
++ hostdesc2 = hostdesc1 + 1;
++
++ /* DON'T simply set Ctl field to 0 here globally,
++ * it needs to maintain a consistent flag status (those are state flags!!),
++ * otherwise it may lead to severe disruption. Only set or reset particular
++ * flags at the exact moment this is needed... */
++
++ /* let chip do RTS/CTS handshaking before sending
++ * in case packet size exceeds threshold */
++ if (len > adev->rts_threshold)
++ SET_BIT(Ctl2_8, DESC_CTL2_RTS);
++ else
++ CLEAR_BIT(Ctl2_8, DESC_CTL2_RTS);
++
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ case ACX_MODE_3_AP:
++ clt = acx_l_sta_list_get(adev, ((wlan_hdr_t*)hostdesc1->data)->a1);
++ break;
++ case ACX_MODE_2_STA:
++ clt = adev->ap_client;
++ break;
++#if 0
++/* testing was done on acx111: */
++ case ACX_MODE_MONITOR:
++ SET_BIT(Ctl2_8, 0
++/* sends CTS to self before packet */
++ + DESC_CTL2_SEQ /* don't increase sequence field */
++/* not working (looks like good fcs is still added) */
++ + DESC_CTL2_FCS /* don't add the FCS */
++/* not tested */
++ + DESC_CTL2_MORE_FRAG
++/* not tested */
++ + DESC_CTL2_RETRY /* don't increase retry field */
++/* not tested */
++ + DESC_CTL2_POWER /* don't increase power mgmt. field */
++/* no effect */
++ + DESC_CTL2_WEP /* encrypt this frame */
++/* not tested */
++ + DESC_CTL2_DUR /* don't increase duration field */
++ );
++ /* fallthrough */
++#endif
++ default: /* ACX_MODE_OFF, ACX_MODE_MONITOR */
++ clt = NULL;
++ break;
++ }
++
++ rate_cur = clt ? clt->rate_cur : adev->rate_bcast;
++ if (unlikely(!rate_cur)) {
++ printk("acx: driver bug! bad ratemask\n");
++ goto end;
++ }
++
++ /* used in tx cleanup routine for auto rate and accounting: */
++ put_txcr(adev, txdesc, clt, rate_cur);
++
++ write_slavemem16 (adev, (u32) &(txdesc->total_length), cpu_to_le16(len));
++ hostdesc2->length = cpu_to_le16(len - WLAN_HDR_A3_LEN);
++ if (IS_ACX111(adev)) {
++ /* note that if !txdesc->do_auto, txrate->cur
++ ** has only one nonzero bit */
++ txdesc->u.r2.rate111 = cpu_to_le16(
++ rate_cur
++ /* WARNING: I was never able to make it work with prism54 AP.
++ ** It was falling down to 1Mbit where shortpre is not applicable,
++ ** and not working at all at "5,11 basic rates only" setting.
++ ** I even didn't see tx packets in radio packet capture.
++ ** Disabled for now --vda */
++ /*| ((clt->shortpre && clt->cur!=RATE111_1) ? RATE111_SHORTPRE : 0) */
++ );
++#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS
++ /* should add this to rate111 above as necessary */
++ | (clt->pbcc511 ? RATE111_PBCC511 : 0)
++#endif
++ hostdesc1->length = cpu_to_le16(len);
++ } else { /* ACX100 */
++ u8 rate_100 = clt ? clt->rate_100 : adev->rate_bcast100;
++ write_slavemem8 (adev, (u32) &(txdesc->u.r1.rate), rate_100);
++#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS
++ if (clt->pbcc511) {
++ if (n == RATE100_5 || n == RATE100_11)
++ n |= RATE100_PBCC511;
++ }
++
++ if (clt->shortpre && (clt->cur != RATE111_1))
++ SET_BIT(Ctl_8, DESC_CTL_SHORT_PREAMBLE); /* set Short Preamble */
++#endif
++ /* set autodma and reclaim and 1st mpdu */
++ SET_BIT(Ctl_8, DESC_CTL_FIRSTFRAG);
++
++#if ACX_FRAGMENTATION
++ /* SET_BIT(Ctl2_8, DESC_CTL2_MORE_FRAG); cannot set it unconditionally, needs to be set for all non-last fragments */
++#endif
++ hostdesc1->length = cpu_to_le16(WLAN_HDR_A3_LEN);
++
++ /*
++ * Since we're not using autodma copy the packet data to the acx now.
++ * Even host descriptors point to the packet header, and the odd indexed
++ * descriptor following points to the packet data.
++ *
++ * The first step is to find free memory in the ACX transmit buffers.
++ * They don't necessarily map one to one with the transmit queue entries,
++ * so search through them starting just after the last one used.
++ */
++ addr = allocate_acx_txbuf_space (adev, len);
++ if (addr) {
++ chaincopy_to_slavemem (adev, addr, hostdesc1->data, len);
++ }
++ else {
++ /*
++ * Bummer. We thought we might have enough room in the transmit
++ * buffers to send this packet, but it turns out we don't. alloc_tx
++ * has already marked this transmit descriptor as HOSTOWN and ACXDONE,
++ * which means the ACX will hang when it gets to this descriptor unless
++ * we do something about it. Having a bubble in the transmit queue just
++ * doesn't seem to work, so we have to reset this transmit queue entry's
++ * state to its original value and back up our head pointer to point
++ * back to this entry.
++ */
++ hostdesc1->length = 0;
++ hostdesc2->length = 0;
++ write_slavemem16 (adev, (u32) &(txdesc->total_length), 0);
++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG);
++ adev->tx_head = ((u8*) txdesc - (u8*) adev->txdesc_start) / adev->txdesc_size;
++ goto end;
++ }
++ /*
++ * Tell the ACX where the packet is.
++ */
++ write_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr), addr);
++
++ }
++ /* don't need to clean ack/rts statistics here, already
++ * done on descr cleanup */
++
++ /* clears HOSTOWN and ACXDONE bits, thus telling that the descriptors
++ * are now owned by the acx100; do this as LAST operation */
++ CLEAR_BIT(Ctl_8, DESC_CTL_ACXDONE_HOSTOWN);
++ /* flush writes before we release hostdesc to the adapter here */
++ //wmb();
++
++ /* write back modified flags */
++ /*
++ * At this point Ctl_8 should just be FIRSTFRAG
++ */
++ write_slavemem8 (adev, (u32) &(txdesc->Ctl2_8),Ctl2_8);
++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), Ctl_8);
++ /* unused: txdesc->tx_time = cpu_to_le32(jiffies); */
++
++ /*
++ * Update the queue indicator to say there's data on the first queue.
++ */
++ acxmem_update_queue_indicator (adev, 0);
++
++ /* flush writes before we tell the adapter that it's its turn now */
++ mmiowb();
++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_TXPRC);
++ write_flush(adev);
++
++ /* log the packet content AFTER sending it,
++ * in order to not delay sending any further than absolutely needed
++ * Do separate logs for acx100/111 to have human-readable rates */
++ if (unlikely(acx_debug & (L_XFER|L_DATA))) {
++ u16 fc = ((wlan_hdr_t*)hostdesc1->data)->fc;
++ if (IS_ACX111(adev))
++ printk("tx: pkt (%s): len %d "
++ "rate %04X%s status %u\n",
++ acx_get_packet_type_string(le16_to_cpu(fc)), len,
++ le16_to_cpu(txdesc->u.r2.rate111),
++ (le16_to_cpu(txdesc->u.r2.rate111) & RATE111_SHORTPRE) ? "(SPr)" : "",
++ adev->status);
++ else
++ printk("tx: pkt (%s): len %d rate %03u%s status %u\n",
++ acx_get_packet_type_string(fc), len,
++ read_slavemem8 (adev, (u32) &(txdesc->u.r1.rate)),
++ (Ctl_8 & DESC_CTL_SHORT_PREAMBLE) ? "(SPr)" : "",
++ adev->status);
++
++ if (acx_debug & L_DATA) {
++ printk("tx: 802.11 [%d]: ", len);
++ acx_dump_bytes(hostdesc1->data, len);
++ }
++ }
++end:
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_l_clean_txdesc
++**
++** This function resets the txdescs' status when the ACX100
++** signals the TX done IRQ (txdescs have been processed), starting with
++** the pool index of the descriptor which we would use next,
++** in order to make sure that we can be as fast as possible
++** in filling new txdescs.
++** Everytime we get called we know where the next packet to be cleaned is.
++*/
++
++#if !ACX_DEBUG
++static inline void log_txbuffer(const acx_device_t *adev) {}
++#else
++static void
++log_txbuffer(acx_device_t *adev)
++{
++ txdesc_t *txdesc;
++ int i;
++ u8 Ctl_8;
++
++ /* no FN_ENTER here, we don't want that */
++ /* no locks here, since it's entirely non-critical code */
++ txdesc = adev->txdesc_start;
++ if (unlikely(!txdesc)) return;
++ printk("tx: desc->Ctl8's:");
++ for (i = 0; i < TX_CNT; i++) {
++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
++ printk(" %02X", Ctl_8);
++ txdesc = advance_txdesc(adev, txdesc, 1);
++ }
++ printk("\n");
++}
++#endif
++
++
++static void
++handle_tx_error(acx_device_t *adev, u8 error, unsigned int finger)
++{
++ const char *err = "unknown error";
++
++ /* hmm, should we handle this as a mask
++ * of *several* bits?
++ * For now I think only caring about
++ * individual bits is ok... */
++ switch (error) {
++ case 0x01:
++ err = "no Tx due to error in other fragment";
++ adev->wstats.discard.fragment++;
++ break;
++ case 0x02:
++ err = "Tx aborted";
++ adev->stats.tx_aborted_errors++;
++ break;
++ case 0x04:
++ err = "Tx desc wrong parameters";
++ adev->wstats.discard.misc++;
++ break;
++ case 0x08:
++ err = "WEP key not found";
++ adev->wstats.discard.misc++;
++ break;
++ case 0x10:
++ err = "MSDU lifetime timeout? - try changing "
++ "'iwconfig retry lifetime XXX'";
++ adev->wstats.discard.misc++;
++ break;
++ case 0x20:
++ err = "excessive Tx retries due to either distance "
++ "too high or unable to Tx or Tx frame error - "
++ "try changing 'iwconfig txpower XXX' or "
++ "'sens'itivity or 'retry'";
++ adev->wstats.discard.retries++;
++ /* Tx error 0x20 also seems to occur on
++ * overheating, so I'm not sure whether we
++ * actually want to do aggressive radio recalibration,
++ * since people maybe won't notice then that their hardware
++ * is slowly getting cooked...
++ * Or is it still a safe long distance from utter
++ * radio non-functionality despite many radio recalibs
++ * to final destructive overheating of the hardware?
++ * In this case we really should do recalib here...
++ * I guess the only way to find out is to do a
++ * potentially fatal self-experiment :-\
++ * Or maybe only recalib in case we're using Tx
++ * rate auto (on errors switching to lower speed
++ * --> less heat?) or 802.11 power save mode?
++ *
++ * ok, just do it. */
++ if (++adev->retry_errors_msg_ratelimit % 4 == 0) {
++ if (adev->retry_errors_msg_ratelimit <= 20) {
++ printk("%s: several excessive Tx "
++ "retry errors occurred, attempting "
++ "to recalibrate radio. Radio "
++ "drift might be caused by increasing "
++ "card temperature, please check the card "
++ "before it's too late!\n",
++ adev->ndev->name);
++ if (adev->retry_errors_msg_ratelimit == 20)
++ printk("disabling above message\n");
++ }
++
++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
++ }
++ break;
++ case 0x40:
++ err = "Tx buffer overflow";
++ adev->stats.tx_fifo_errors++;
++ break;
++ case 0x80:
++ err = "DMA error";
++ adev->wstats.discard.misc++;
++ break;
++ }
++ adev->stats.tx_errors++;
++ if (adev->stats.tx_errors <= 20)
++ printk("%s: tx error 0x%02X, buf %02u! (%s)\n",
++ adev->ndev->name, error, finger, err);
++ else
++ printk("%s: tx error 0x%02X, buf %02u!\n",
++ adev->ndev->name, error, finger);
++}
++
++
++unsigned int
++acxmem_l_clean_txdesc(acx_device_t *adev)
++{
++ txdesc_t *txdesc;
++ unsigned finger;
++ int num_cleaned;
++ u16 r111;
++ u8 error, ack_failures, rts_failures, rts_ok, r100, Ctl_8;
++ u32 acxmem;
++ txdesc_t tmptxdesc;
++
++ FN_ENTER;
++
++ /*
++ * Set up a template descriptor for re-initialization. The only
++ * things that get set are Ctl_8 and the rate, and the rate defaults
++ * to 1Mbps.
++ */
++ memset (&tmptxdesc, 0, sizeof (tmptxdesc));
++ tmptxdesc.Ctl_8 = DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG;
++ tmptxdesc.u.r1.rate = 0x0a;
++
++ if (unlikely(acx_debug & L_DEBUG))
++ log_txbuffer(adev);
++
++ log(L_BUFT, "tx: cleaning up bufs from %u\n", adev->tx_tail);
++
++ /* We know first descr which is not free yet. We advance it as far
++ ** as we see correct bits set in following descs (if next desc
++ ** is NOT free, we shouldn't advance at all). We know that in
++ ** front of tx_tail may be "holes" with isolated free descs.
++ ** We will catch up when all intermediate descs will be freed also */
++
++ finger = adev->tx_tail;
++ num_cleaned = 0;
++ while (likely(finger != adev->tx_head)) {
++ txdesc = get_txdesc(adev, finger);
++
++ /* If we allocated txdesc on tx path but then decided
++ ** to NOT use it, then it will be left as a free "bubble"
++ ** in the "allocated for tx" part of the ring.
++ ** We may meet it on the next ring pass here. */
++
++ /* stop if not marked as "tx finished" and "host owned" */
++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
++ if ((Ctl_8 & DESC_CTL_ACXDONE_HOSTOWN)
++ != DESC_CTL_ACXDONE_HOSTOWN) {
++ if (unlikely(!num_cleaned)) { /* maybe remove completely */
++ log(L_BUFT, "clean_txdesc: tail isn't free. "
++ "tail:%d head:%d\n",
++ adev->tx_tail, adev->tx_head);
++ }
++ break;
++ }
++
++ /* remember desc values... */
++ error = read_slavemem8 (adev, (u32) &(txdesc->error));
++ ack_failures = read_slavemem8 (adev, (u32) &(txdesc->ack_failures));
++ rts_failures = read_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_failures));
++ rts_ok = read_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_ok));
++ r100 = read_slavemem8 (adev, (u32) &(txdesc->u.r1.rate));
++ r111 = le16_to_cpu(read_slavemem16 (adev, (u32) &(txdesc->u.r2.rate111)));
++
++ /* need to check for certain error conditions before we
++ * clean the descriptor: we still need valid descr data here */
++ if (unlikely(0x30 & error)) {
++ /* only send IWEVTXDROP in case of retry or lifetime exceeded;
++ * all other errors mean we screwed up locally */
++ union iwreq_data wrqu;
++ wlan_hdr_t *hdr;
++ txhostdesc_t *hostdesc;
++
++ hostdesc = get_txhostdesc(adev, txdesc);
++ hdr = (wlan_hdr_t *)hostdesc->data;
++ MAC_COPY(wrqu.addr.sa_data, hdr->a1);
++ wireless_send_event(adev->ndev, IWEVTXDROP, &wrqu, NULL);
++ }
++
++ /*
++ * Free up the transmit data buffers
++ */
++ acxmem = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr));
++ if (acxmem) {
++ reclaim_acx_txbuf_space (adev, acxmem);
++ }
++
++ /* ...and free the desc by clearing all the fields
++ except the next pointer */
++ copy_to_slavemem (adev,
++ (u32) &(txdesc->HostMemPtr),
++ (u8 *) &(tmptxdesc.HostMemPtr),
++ sizeof (tmptxdesc) - sizeof(tmptxdesc.pNextDesc)
++ );
++
++ adev->tx_free++;
++ num_cleaned++;
++
++ if ((adev->tx_free >= TX_START_QUEUE)
++ && (adev->status == ACX_STATUS_4_ASSOCIATED)
++ && (acx_queue_stopped(adev->ndev))
++ ) {
++ log(L_BUF, "tx: wake queue (avail. Tx desc %u)\n",
++ adev->tx_free);
++ acx_wake_queue(adev->ndev, NULL);
++ }
++
++ /* do error checking, rate handling and logging
++ * AFTER having done the work, it's faster */
++
++ /* do rate handling */
++ if (adev->rate_auto) {
++ struct client *clt = get_txc(adev, txdesc);
++ if (clt) {
++ u16 cur = get_txr(adev, txdesc);
++ if (clt->rate_cur == cur) {
++ acx_l_handle_txrate_auto(adev, clt,
++ cur, /* intended rate */
++ r100, r111, /* actually used rate */
++ (error & 0x30), /* was there an error? */
++ TX_CNT + TX_CLEAN_BACKLOG - adev->tx_free);
++ }
++ }
++ }
++
++ if (unlikely(error))
++ handle_tx_error(adev, error, finger);
++
++ if (IS_ACX111(adev))
++ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u r111=%04X\n",
++ finger, ack_failures, rts_failures, rts_ok, r111);
++ else
++ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u rate=%u\n",
++ finger, ack_failures, rts_failures, rts_ok, r100);
++
++ /* update pointer for descr to be cleaned next */
++ finger = (finger + 1) % TX_CNT;
++ }
++
++ /* remember last position */
++ adev->tx_tail = finger;
++/* end: */
++ FN_EXIT1(num_cleaned);
++ return num_cleaned;
++}
++
++/* clean *all* Tx descriptors, and regardless of their previous state.
++ * Used for brute-force reset handling. */
++void
++acxmem_l_clean_txdesc_emergency(acx_device_t *adev)
++{
++ txdesc_t *txdesc;
++ int i;
++ u32 acxmem;
++
++ FN_ENTER;
++
++ for (i = 0; i < TX_CNT; i++) {
++ txdesc = get_txdesc(adev, i);
++
++ /* free it */
++ write_slavemem8 (adev, (u32) &(txdesc->ack_failures), 0);
++ write_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_failures), 0);
++ write_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_ok), 0);
++ write_slavemem8 (adev, (u32) &(txdesc->error), 0);
++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_HOSTOWN);
++
++ /*
++ * Clean up the memory allocated on the ACX for this transmit descriptor.
++ */
++ acxmem = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr));
++ if (acxmem) {
++ reclaim_acx_txbuf_space (adev, acxmem);
++ }
++
++ write_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr), 0);
++ }
++
++ adev->tx_free = TX_CNT;
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_s_create_tx_host_desc_queue
++*/
++
++static void*
++allocate(acx_device_t *adev, size_t size, dma_addr_t *phy, const char *msg)
++{
++ void *ptr;
++ ptr = kmalloc (size, GFP_KERNEL);
++ /*
++ * The ACX can't use the physical address, so we'll have to fake it
++ * later and it might be handy to have the virtual address.
++ */
++ *phy = (dma_addr_t) NULL;
++
++ if (ptr) {
++ log(L_DEBUG, "%s sz=%d adr=0x%p phy=0x%08llx\n",
++ msg, (int)size, ptr, (unsigned long long)*phy);
++ memset(ptr, 0, size);
++ return ptr;
++ }
++ printk(KERN_ERR "acx: %s allocation FAILED (%d bytes)\n",
++ msg, (int)size);
++ return NULL;
++}
++
++
++/*
++ * In the generic slave memory access mode, most of the stuff in
++ * the txhostdesc_t is unused. It's only here because the rest of
++ * the ACX driver expects it to be since the PCI version uses indirect
++ * host memory organization with DMA. Since we're not using DMA the
++ * only use we have for the host descriptors is to store the packets
++ * on the way out.
++ */
++static int
++acxmem_s_create_tx_host_desc_queue(acx_device_t *adev)
++{
++ txhostdesc_t *hostdesc;
++ u8 *txbuf;
++ int i;
++
++ FN_ENTER;
++
++ /* allocate TX buffer */
++ adev->txbuf_area_size = TX_CNT * WLAN_A4FR_MAXLEN_WEP_FCS;
++
++ adev->txbuf_start = allocate(adev, adev->txbuf_area_size,
++ &adev->txbuf_startphy, "txbuf_start");
++ if (!adev->txbuf_start)
++ goto fail;
++
++ /* allocate the TX host descriptor queue pool */
++ adev->txhostdesc_area_size = TX_CNT * 2*sizeof(*hostdesc);
++
++ adev->txhostdesc_start = allocate(adev, adev->txhostdesc_area_size,
++ &adev->txhostdesc_startphy, "txhostdesc_start");
++ if (!adev->txhostdesc_start)
++ goto fail;
++
++ /* check for proper alignment of TX host descriptor pool */
++ if ((long) adev->txhostdesc_start & 3) {
++ printk("acx: driver bug: dma alloc returns unaligned address\n");
++ goto fail;
++ }
++
++ hostdesc = adev->txhostdesc_start;
++ txbuf = adev->txbuf_start;
++
++#if 0
++/* Each tx buffer is accessed by hardware via
++** txdesc -> txhostdesc(s) -> txbuffer(s).
++** We use only one txhostdesc per txdesc, but it looks like
++** acx111 is buggy: it accesses second txhostdesc
++** (via hostdesc.desc_phy_next field) even if
++** txdesc->length == hostdesc->length and thus
++** entire packet was placed into first txhostdesc.
++** Due to this bug acx111 hangs unless second txhostdesc
++** has le16_to_cpu(hostdesc.length) = 3 (or larger)
++** Storing NULL into hostdesc.desc_phy_next
++** doesn't seem to help.
++**
++** Update: although it worked on Xterasys XN-2522g
++** with len=3 trick, WG311v2 is even more bogus, doesn't work.
++** Keeping this code (#ifdef'ed out) for documentational purposes.
++*/
++ for (i = 0; i < TX_CNT*2; i++) {
++ hostdesc_phy += sizeof(*hostdesc);
++ if (!(i & 1)) {
++ hostdesc->data_phy = cpu2acx(txbuf_phy);
++ /* hostdesc->data_offset = ... */
++ /* hostdesc->reserved = ... */
++ hostdesc->Ctl_16 = cpu_to_le16(DESC_CTL_HOSTOWN);
++ /* hostdesc->length = ... */
++ hostdesc->desc_phy_next = cpu2acx(hostdesc_phy);
++ hostdesc->pNext = ptr2acx(NULL);
++ /* hostdesc->Status = ... */
++ /* below: non-hardware fields */
++ hostdesc->data = txbuf;
++
++ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS;
++ txbuf_phy += WLAN_A4FR_MAXLEN_WEP_FCS;
++ } else {
++ /* hostdesc->data_phy = ... */
++ /* hostdesc->data_offset = ... */
++ /* hostdesc->reserved = ... */
++ /* hostdesc->Ctl_16 = ... */
++ hostdesc->length = cpu_to_le16(3); /* bug workaround */
++ /* hostdesc->desc_phy_next = ... */
++ /* hostdesc->pNext = ... */
++ /* hostdesc->Status = ... */
++ /* below: non-hardware fields */
++ /* hostdesc->data = ... */
++ }
++ hostdesc++;
++ }
++#endif
++/* We initialize two hostdescs so that they point to adjacent
++** memory areas. Thus txbuf is really just a contiguous memory area */
++ for (i = 0; i < TX_CNT*2; i++) {
++ /* ->data is a non-hardware field: */
++ hostdesc->data = txbuf;
++
++ if (!(i & 1)) {
++ txbuf += WLAN_HDR_A3_LEN;
++ } else {
++ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_HDR_A3_LEN;
++ }
++ hostdesc++;
++ }
++ hostdesc--;
++
++ FN_EXIT1(OK);
++ return OK;
++fail:
++ printk("acx: create_tx_host_desc_queue FAILED\n");
++ /* dealloc will be done by free function on error case */
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***************************************************************
++** acxmem_s_create_rx_host_desc_queue
++*/
++/* the whole size of a data buffer (header plus data body)
++ * plus 32 bytes safety offset at the end */
++#define RX_BUFFER_SIZE (sizeof(rxbuffer_t) + 32)
++
++static int
++acxmem_s_create_rx_host_desc_queue(acx_device_t *adev)
++{
++ rxhostdesc_t *hostdesc;
++ rxbuffer_t *rxbuf;
++ int i;
++
++ FN_ENTER;
++
++ /* allocate the RX host descriptor queue pool */
++ adev->rxhostdesc_area_size = RX_CNT * sizeof(*hostdesc);
++
++ adev->rxhostdesc_start = allocate(adev, adev->rxhostdesc_area_size,
++ &adev->rxhostdesc_startphy, "rxhostdesc_start");
++ if (!adev->rxhostdesc_start)
++ goto fail;
++
++ /* check for proper alignment of RX host descriptor pool */
++ if ((long) adev->rxhostdesc_start & 3) {
++ printk("acx: driver bug: dma alloc returns unaligned address\n");
++ goto fail;
++ }
++
++ /* allocate Rx buffer pool which will be used by the acx
++ * to store the whole content of the received frames in it */
++ adev->rxbuf_area_size = RX_CNT * RX_BUFFER_SIZE;
++
++ adev->rxbuf_start = allocate(adev, adev->rxbuf_area_size,
++ &adev->rxbuf_startphy, "rxbuf_start");
++ if (!adev->rxbuf_start)
++ goto fail;
++
++ rxbuf = adev->rxbuf_start;
++ hostdesc = adev->rxhostdesc_start;
++
++ /* don't make any popular C programming pointer arithmetic mistakes
++ * here, otherwise I'll kill you...
++ * (and don't dare asking me why I'm warning you about that...) */
++ for (i = 0; i < RX_CNT; i++) {
++ hostdesc->data = rxbuf;
++ hostdesc->length = cpu_to_le16(RX_BUFFER_SIZE);
++ rxbuf++;
++ hostdesc++;
++ }
++ hostdesc--;
++ FN_EXIT1(OK);
++ return OK;
++fail:
++ printk("acx: create_rx_host_desc_queue FAILED\n");
++ /* dealloc will be done by free function on error case */
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***************************************************************
++** acxmem_s_create_hostdesc_queues
++*/
++int
++acxmem_s_create_hostdesc_queues(acx_device_t *adev)
++{
++ int result;
++ result = acxmem_s_create_tx_host_desc_queue(adev);
++ if (OK != result) return result;
++ result = acxmem_s_create_rx_host_desc_queue(adev);
++ return result;
++}
++
++
++/***************************************************************
++** acxmem_create_tx_desc_queue
++*/
++static void
++acxmem_create_tx_desc_queue(acx_device_t *adev, u32 tx_queue_start)
++{
++ txdesc_t *txdesc;
++ u32 clr;
++ int i;
++
++ FN_ENTER;
++
++ if (IS_ACX100(adev))
++ adev->txdesc_size = sizeof(*txdesc);
++ else
++ /* the acx111 txdesc is 4 bytes larger */
++ adev->txdesc_size = sizeof(*txdesc) + 4;
++
++ /*
++ * This refers to an ACX address, not one of ours
++ */
++ adev->txdesc_start = (txdesc_t *) tx_queue_start;
++
++ log(L_DEBUG, "adev->txdesc_start=%p\n",
++ adev->txdesc_start);
++
++ adev->tx_free = TX_CNT;
++ /* done by memset: adev->tx_head = 0; */
++ /* done by memset: adev->tx_tail = 0; */
++ txdesc = adev->txdesc_start;
++
++ if (IS_ACX111(adev)) {
++ /* ACX111 has a preinitialized Tx buffer! */
++ /* loop over whole send pool */
++ /* FIXME: do we have to do the hostmemptr stuff here?? */
++ for (i = 0; i < TX_CNT; i++) {
++ txdesc->Ctl_8 = DESC_CTL_HOSTOWN;
++ /* reserve two (hdr desc and payload desc) */
++ txdesc = advance_txdesc(adev, txdesc, 1);
++ }
++ } else {
++ /* ACX100 Tx buffer needs to be initialized by us */
++ /* clear whole send pool. sizeof is safe here (we are acx100) */
++
++ /*
++ * adev->txdesc_start refers to device memory, so we can't write
++ * directly to it.
++ */
++ clr = (u32) adev->txdesc_start;
++ while (clr < (u32) adev->txdesc_start + (TX_CNT * sizeof(*txdesc))) {
++ write_slavemem32 (adev, clr, 0);
++ clr += 4;
++ }
++
++ /* loop over whole send pool */
++ for (i = 0; i < TX_CNT; i++) {
++ log(L_DEBUG, "configure card tx descriptor: 0x%p, "
++ "size: 0x%X\n", txdesc, adev->txdesc_size);
++
++ /* initialise ctl */
++ /*
++ * No auto DMA here
++ */
++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8),
++ (u8) (DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG));
++ /* done by memset(0): txdesc->Ctl2_8 = 0; */
++
++ /* point to next txdesc */
++ write_slavemem32 (adev, (u32) &(txdesc->pNextDesc),
++ (u32) cpu_to_le32 ((u8 *) txdesc + adev->txdesc_size));
++
++ /* go to the next one */
++ /* ++ is safe here (we are acx100) */
++ txdesc++;
++ }
++ /* go back to the last one */
++ txdesc--;
++ /* and point to the first making it a ring buffer */
++ write_slavemem32 (adev, (u32) &(txdesc->pNextDesc),
++ (u32) cpu_to_le32 (tx_queue_start));
++ }
++ FN_EXIT0;
++}
++
++
++/***************************************************************
++** acxmem_create_rx_desc_queue
++*/
++static void
++acxmem_create_rx_desc_queue(acx_device_t *adev, u32 rx_queue_start)
++{
++ rxdesc_t *rxdesc;
++ u32 mem_offs;
++ int i;
++
++ FN_ENTER;
++
++ /* done by memset: adev->rx_tail = 0; */
++
++ /* ACX111 doesn't need any further config: preconfigures itself.
++ * Simply print ring buffer for debugging */
++ if (IS_ACX111(adev)) {
++ /* rxdesc_start already set here */
++
++ adev->rxdesc_start = (rxdesc_t *) rx_queue_start;
++
++ rxdesc = adev->rxdesc_start;
++ for (i = 0; i < RX_CNT; i++) {
++ log(L_DEBUG, "rx descriptor %d @ 0x%p\n", i, rxdesc);
++ rxdesc = adev->rxdesc_start = (rxdesc_t *)
++ acx2cpu(rxdesc->pNextDesc);
++ }
++ } else {
++ /* we didn't pre-calculate rxdesc_start in case of ACX100 */
++ /* rxdesc_start should be right AFTER Tx pool */
++ adev->rxdesc_start = (rxdesc_t *)
++ ((u8 *) adev->txdesc_start + (TX_CNT * sizeof(txdesc_t)));
++ /* NB: sizeof(txdesc_t) above is valid because we know
++ ** we are in if (acx100) block. Beware of cut-n-pasting elsewhere!
++ ** acx111's txdesc is larger! */
++
++ mem_offs = (u32) adev->rxdesc_start;
++ while (mem_offs < (u32) adev->rxdesc_start + (RX_CNT * sizeof (*rxdesc))) {
++ write_slavemem32 (adev, mem_offs, 0);
++ mem_offs += 4;
++ }
++
++ /* loop over whole receive pool */
++ rxdesc = adev->rxdesc_start;
++ for (i = 0; i < RX_CNT; i++) {
++ log(L_DEBUG, "rx descriptor @ 0x%p\n", rxdesc);
++ /* point to next rxdesc */
++ write_slavemem32 (adev, (u32) &(rxdesc->pNextDesc),
++ (u32) cpu_to_le32 ((u8 *) rxdesc + sizeof(*rxdesc)));
++ /* go to the next one */
++ rxdesc++;
++ }
++ /* go to the last one */
++ rxdesc--;
++
++ /* and point to the first making it a ring buffer */
++ write_slavemem32 (adev, (u32) &(rxdesc->pNextDesc),
++ (u32) cpu_to_le32 (rx_queue_start));
++ }
++ FN_EXIT0;
++}
++
++
++/***************************************************************
++** acxmem_create_desc_queues
++*/
++void
++acxmem_create_desc_queues(acx_device_t *adev, u32 tx_queue_start, u32 rx_queue_start)
++{
++ u32 *p;
++ int i;
++
++ acxmem_create_tx_desc_queue(adev, tx_queue_start);
++ acxmem_create_rx_desc_queue(adev, rx_queue_start);
++ p = (u32 *) adev->acx_queue_indicator;
++ for (i = 0; i < 4; i++) {
++ write_slavemem32 (adev, (u32) p, 0);
++ p++;
++ }
++}
++
++
++/***************************************************************
++** acxmem_s_proc_diag_output
++*/
++char*
++acxmem_s_proc_diag_output(char *p, acx_device_t *adev)
++{
++ const char *rtl, *thd, *ttl;
++ txdesc_t *txdesc;
++ u8 Ctl_8;
++ rxdesc_t *rxdesc;
++ int i;
++ u32 tmp;
++ txdesc_t txd;
++ u8 buf[0x200];
++ int j, k;
++
++ FN_ENTER;
++
++#if DUMP_MEM_DURING_DIAG > 0
++ dump_acxmem (adev, 0, 0x10000);
++ panic ("dump finished");
++#endif
++
++ p += sprintf(p, "** Rx buf **\n");
++ rxdesc = adev->rxdesc_start;
++ if (rxdesc) for (i = 0; i < RX_CNT; i++) {
++ rtl = (i == adev->rx_tail) ? " [tail]" : "";
++ Ctl_8 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8));
++ if (Ctl_8 & DESC_CTL_HOSTOWN)
++ p += sprintf(p, "%02u (%02x) FULL%s\n", i, Ctl_8, rtl);
++ else
++ p += sprintf(p, "%02u (%02x) empty%s\n", i, Ctl_8, rtl);
++ rxdesc++;
++ }
++ p += sprintf(p, "** Tx buf (free %d, Linux netqueue %s) **\n", adev->tx_free,
++ acx_queue_stopped(adev->ndev) ? "STOPPED" : "running");
++
++ p += sprintf(p, "** Tx buf %d blocks total, %d available, free list head %04x\n",
++ adev->acx_txbuf_numblocks, adev->acx_txbuf_blocks_free, adev->acx_txbuf_free);
++ txdesc = adev->txdesc_start;
++ if (txdesc) {
++ for (i = 0; i < TX_CNT; i++) {
++ thd = (i == adev->tx_head) ? " [head]" : "";
++ ttl = (i == adev->tx_tail) ? " [tail]" : "";
++ copy_from_slavemem (adev, (u8 *) &txd, (u32) txdesc, sizeof (txd));
++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
++ if (Ctl_8 & DESC_CTL_ACXDONE)
++ p += sprintf(p, "%02u ready to free (%02X)%s%s", i, Ctl_8, thd, ttl);
++ else if (Ctl_8 & DESC_CTL_HOSTOWN)
++ p += sprintf(p, "%02u available (%02X)%s%s", i, Ctl_8, thd, ttl);
++ else
++ p += sprintf(p, "%02u busy (%02X)%s%s", i, Ctl_8, thd, ttl);
++ tmp = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr));
++ if (tmp) {
++ p += sprintf (p, " %04x", tmp);
++ while ((tmp = read_slavemem32 (adev, (u32) tmp)) != 0x02000000) {
++ tmp <<= 5;
++ p += sprintf (p, " %04x", tmp);
++ }
++ }
++ p += sprintf (p, "\n");
++ p += sprintf (p, " %04x: %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %02x %02x %02x %02x\n"
++ "%02x %02x %02x %02x %04x\n",
++ (u32) txdesc,
++ txd.pNextDesc.v, txd.HostMemPtr.v, txd.AcxMemPtr.v, txd.tx_time,
++ txd.total_length, txd.Reserved,
++ txd.dummy[0], txd.dummy[1], txd.dummy[2], txd.dummy[3],
++ txd.Ctl_8, txd.Ctl2_8, txd.error, txd.ack_failures,
++ txd.u.rts.rts_failures, txd.u.rts.rts_ok, txd.u.r1.rate, txd.u.r1.queue_ctrl,
++ txd.queue_info
++ );
++ if (txd.AcxMemPtr.v) {
++ copy_from_slavemem (adev, buf, txd.AcxMemPtr.v, sizeof (buf));
++ for (j = 0; (j < txd.total_length) && (j<(sizeof(buf)-4)); j+=16) {
++ p += sprintf (p, " ");
++ for (k = 0; (k < 16) && (j+k < txd.total_length); k++) {
++ p += sprintf (p, " %02x", buf[j+k+4]);
++ }
++ p += sprintf (p, "\n");
++ }
++ }
++ txdesc = advance_txdesc(adev, txdesc, 1);
++ }
++ }
++
++ p += sprintf(p,
++ "\n"
++ "** Generic slave data **\n"
++ "irq_mask 0x%04x irq_status 0x%04x irq on acx 0x%04x\n"
++ "txbuf_start 0x%p, txbuf_area_size %u\n"
++ "txdesc_size %u, txdesc_start 0x%p\n"
++ "txhostdesc_start 0x%p, txhostdesc_area_size %u\n"
++ "txbuf start 0x%04x, txbuf size %d\n"
++ "rxdesc_start 0x%p\n"
++ "rxhostdesc_start 0x%p, rxhostdesc_area_size %u\n"
++ "rxbuf_start 0x%p, rxbuf_area_size %u\n",
++ adev->irq_mask, adev->irq_status, read_reg32(adev, IO_ACX_IRQ_STATUS_NON_DES),
++ adev->txbuf_start, adev->txbuf_area_size,
++ adev->txdesc_size, adev->txdesc_start,
++ adev->txhostdesc_start, adev->txhostdesc_area_size,
++ adev->acx_txbuf_start, adev->acx_txbuf_numblocks * adev->memblocksize,
++ adev->rxdesc_start,
++ adev->rxhostdesc_start, adev->rxhostdesc_area_size,
++ adev->rxbuf_start, adev->rxbuf_area_size);
++ FN_EXIT0;
++ return p;
++}
++
++
++/***********************************************************************
++*/
++int
++acxmem_proc_eeprom_output(char *buf, acx_device_t *adev)
++{
++ char *p = buf;
++ int i;
++
++ FN_ENTER;
++
++ for (i = 0; i < 0x400; i++) {
++ acxmem_read_eeprom_byte(adev, i, p++);
++ }
++
++ FN_EXIT1(p - buf);
++ return p - buf;
++}
++
++
++/***********************************************************************
++*/
++void
++acxmem_set_interrupt_mask(acx_device_t *adev)
++{
++ if (IS_ACX111(adev)) {
++ adev->irq_mask = (u16) ~(0
++ | HOST_INT_RX_DATA
++ | HOST_INT_TX_COMPLETE
++ /* | HOST_INT_TX_XFER */
++ /* | HOST_INT_RX_COMPLETE */
++ /* | HOST_INT_DTIM */
++ /* | HOST_INT_BEACON */
++ /* | HOST_INT_TIMER */
++ /* | HOST_INT_KEY_NOT_FOUND */
++ | HOST_INT_IV_ICV_FAILURE
++ | HOST_INT_CMD_COMPLETE
++ | HOST_INT_INFO
++ | HOST_INT_OVERFLOW
++ /* | HOST_INT_PROCESS_ERROR */
++ | HOST_INT_SCAN_COMPLETE
++ | HOST_INT_FCS_THRESHOLD
++ | HOST_INT_UNKNOWN
++ );
++ /* Or else acx100 won't signal cmd completion, right? */
++ adev->irq_mask_off = (u16)~( HOST_INT_CMD_COMPLETE ); /* 0xfdff */
++ } else {
++ adev->irq_mask = (u16) ~(0
++ | HOST_INT_RX_DATA
++ | HOST_INT_TX_COMPLETE
++ /* | HOST_INT_TX_XFER */
++ /* | HOST_INT_RX_COMPLETE */
++ /* | HOST_INT_DTIM */
++ /* | HOST_INT_BEACON */
++ /* | HOST_INT_TIMER */
++ /* | HOST_INT_KEY_NOT_FOUND */
++ /* | HOST_INT_IV_ICV_FAILURE */
++ | HOST_INT_CMD_COMPLETE
++ | HOST_INT_INFO
++ /* | HOST_INT_OVERFLOW */
++ /* | HOST_INT_PROCESS_ERROR */
++ | HOST_INT_SCAN_COMPLETE
++ /* | HOST_INT_FCS_THRESHOLD */
++ /* | HOST_INT_BEACON_MISSED */
++ );
++ adev->irq_mask_off = (u16)~( HOST_INT_UNKNOWN ); /* 0x7fff */
++ }
++}
++
++
++/***********************************************************************
++*/
++int
++acx100mem_s_set_tx_level(acx_device_t *adev, u8 level_dbm)
++{
++ struct acx111_ie_tx_level tx_level;
++
++ /* since it can be assumed that at least the Maxim radio has a
++ * maximum power output of 20dBm and since it also can be
++ * assumed that these values drive the DAC responsible for
++ * setting the linear Tx level, I'd guess that these values
++ * should be the corresponding linear values for a dBm value,
++ * in other words: calculate the values from that formula:
++ * Y [dBm] = 10 * log (X [mW])
++ * then scale the 0..63 value range onto the 1..100mW range (0..20 dBm)
++ * and you're done...
++ * Hopefully that's ok, but you never know if we're actually
++ * right... (especially since Windows XP doesn't seem to show
++ * actual Tx dBm values :-P) */
++
++ /* NOTE: on Maxim, value 30 IS 30mW, and value 10 IS 10mW - so the
++ * values are EXACTLY mW!!! Not sure about RFMD and others,
++ * though... */
++ static const u8 dbm2val_maxim[21] = {
++ 63, 63, 63, 62,
++ 61, 61, 60, 60,
++ 59, 58, 57, 55,
++ 53, 50, 47, 43,
++ 38, 31, 23, 13,
++ 0
++ };
++ static const u8 dbm2val_rfmd[21] = {
++ 0, 0, 0, 1,
++ 2, 2, 3, 3,
++ 4, 5, 6, 8,
++ 10, 13, 16, 20,
++ 25, 32, 41, 50,
++ 63
++ };
++ const u8 *table;
++
++ switch (adev->radio_type) {
++ case RADIO_MAXIM_0D:
++ table = &dbm2val_maxim[0];
++ break;
++ case RADIO_RFMD_11:
++ case RADIO_RALINK_15:
++ table = &dbm2val_rfmd[0];
++ break;
++ default:
++ printk("%s: unknown/unsupported radio type, "
++ "cannot modify tx power level yet!\n",
++ adev->ndev->name);
++ return NOT_OK;
++ }
++ /*
++ * The hx4700 EEPROM, at least, only supports 1 power setting. The configure
++ * routine matches the PA bias with the gain, so just use its default value.
++ * The values are: 0x2b for the gain and 0x03 for the PA bias. The firmware
++ * writes the gain level to the Tx gain control DAC and the PA bias to the Maxim
++ * radio's PA bias register. The firmware limits itself to 0 - 64 when writing to the
++ * gain control DAC.
++ *
++ * Physically between the ACX and the radio, higher Tx gain control DAC values result
++ * in less power output; 0 volts to the Maxim radio results in the highest output power
++ * level, which I'm assuming matches up with 0 in the Tx Gain DAC register.
++ *
++ * Although there is only the 1 power setting, one of the radio firmware functions adjusts
++ * the transmit power level up and down. That function is called by the ACX FIQ handler
++ * under certain conditions.
++ */
++ tx_level.level = 1;
++ //return acx_s_configure(adev, &tx_level, ACX1xx_IE_DOT11_TX_POWER_LEVEL);
++
++ printk("%s: changing radio power level to %u dBm (%u)\n",
++ adev->ndev->name, level_dbm, table[level_dbm]);
++ acxmem_s_write_phy_reg(adev, 0x11, table[level_dbm]);
++
++ return 0;
++}
++
++void acxmem_e_release(struct device *dev) {
++}
++
++/***********************************************************************
++** acx_cs part
++**
++** called by pcmcia card service
++*/
++
++/*
++ The event() function is this driver's Card Services event handler.
++ It will be called by Card Services when an appropriate card status
++ event is received. The config() and release() entry points are
++ used to configure or release a socket, in response to card
++ insertion and ejection events. They are invoked from the acx_cs
++ event handler.
++*/
++
++static int acx_cs_config(struct pcmcia_device *link);
++static void acx_cs_release(struct pcmcia_device *link);
++
++/*
++ The attach() and detach() entry points are used to create and destroy
++ "instances" of the driver, where each instance represents everything
++ needed to manage one actual PCMCIA card.
++*/
++
++static void acx_cs_detach(struct pcmcia_device *p_dev);
++
++/*
++ You'll also need to prototype all the functions that will actually
++ be used to talk to your device. See 'pcmem_cs' for a good example
++ of a fully self-sufficient driver; the other drivers rely more or
++ less on other parts of the kernel.
++*/
++
++/*
++ A linked list of "instances" of the acxnet device. Each actual
++ PCMCIA card corresponds to one device instance, and is described
++ by one struct pcmcia_device structure (defined in ds.h).
++
++ You may not want to use a linked list for this -- for example, the
++ memory card driver uses an array of struct pcmcia_device pointers, where minor
++ device numbers are used to derive the corresponding array index.
++*/
++
++/*
++ A driver needs to provide a dev_node_t structure for each device
++ on a card. In some cases, there is only one device per card (for
++ example, ethernet cards, modems). In other cases, there may be
++ many actual or logical devices (SCSI adapters, memory cards with
++ multiple partitions). The dev_node_t structures need to be kept
++ in a linked list starting at the 'dev' field of a struct pcmcia_device
++ structure. We allocate them in the card's private data structure,
++ because they generally shouldn't be allocated dynamically.
++
++ In this case, we also provide a flag to indicate if a device is
++ "stopped" due to a power management event, or card ejection. The
++ device IO routines can use a flag like this to throttle IO to a
++ card that is not ready to accept it.
++*/
++
++
++/*======================================================================
++
++ acx_attach() creates an "instance" of the driver, allocating
++ local data structures for one device. The device is registered
++ with Card Services.
++
++ The dev_link structure is initialized, but we don't actually
++ configure the card at this point -- we wait until we receive a
++ card insertion event.
++
++ ======================================================================*/
++
++static int acx_cs_probe(struct pcmcia_device *link)
++{
++ local_info_t *local;
++ struct net_device *ndev;
++
++ DEBUG(0, "acx_attach()\n");
++
++ ndev = alloc_netdev(sizeof(acx_device_t), "wlan%d", dummy_netdev_init);
++ if (!ndev) {
++ printk("acx: no memory for netdevice struct\n");
++ return -ENOMEM;
++ }
++
++ /* Interrupt setup */
++ link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
++ link->irq.IRQInfo1 = IRQ_LEVEL_ID;
++ link->irq.Handler = acxmem_i_interrupt;
++ link->irq.Instance = ndev;
++
++ /*
++ General socket configuration defaults can go here. In this
++ client, we assume very little, and rely on the CIS for almost
++ everything. In most clients, many details (i.e., number, sizes,
++ and attributes of IO windows) are fixed by the nature of the
++ device, and can be hard-wired here.
++ */
++ link->conf.Attributes = CONF_ENABLE_IRQ;
++ link->conf.IntType = INT_MEMORY_AND_IO;
++ link->conf.Present = PRESENT_OPTION | PRESENT_COPY;
++
++ /* Allocate space for private device-specific data */
++ local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
++ if (!local) {
++ printk(KERN_ERR "acx_cs: no memory for new device\n");
++ return -ENOMEM;
++ }
++ local->ndev = ndev;
++
++ link->priv = local;
++
++ return acx_cs_config(link);
++} /* acx_attach */
++
++/*======================================================================
++
++ This deletes a driver "instance". The device is de-registered
++ with Card Services. If it has been released, all local data
++ structures are freed. Otherwise, the structures will be freed
++ when the device is released.
++
++ ======================================================================*/
++
++static void acx_cs_detach(struct pcmcia_device *link)
++{
++ DEBUG(0, "acx_detach(0x%p)\n", link);
++
++
++ if ( ((local_info_t*)link->priv)->ndev ) {
++ acxmem_e_close( ((local_info_t*)link->priv)->ndev );
++ }
++
++ acx_cs_release(link);
++
++ ((local_info_t*)link->priv)->ndev = NULL;
++
++ kfree(link->priv);
++} /* acx_detach */
++
++/*======================================================================
++
++ acx_config() is scheduled to run after a CARD_INSERTION event
++ is received, to configure the PCMCIA socket, and to make the
++ device available to the system.
++
++ ======================================================================*/
++
++#define CS_CHECK(fn, ret) \
++do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
++
++static int acx_cs_config(struct pcmcia_device *link)
++{
++ tuple_t tuple;
++ cisparse_t parse;
++ local_info_t *local = link->priv;
++ int last_fn, last_ret;
++ u_char buf[64];
++ win_req_t req;
++ memreq_t map;
++// int i;
++// acx_device_t *adev;
++
++// adev = (acx_device_t *)link->priv;
++
++ DEBUG(0, "acx_cs_config(0x%p)\n", link);
++
++ /*
++ In this loop, we scan the CIS for configuration table entries,
++ each of which describes a valid card configuration, including
++ voltage, IO window, memory window, and interrupt settings.
++
++ We make no assumptions about the card to be configured: we use
++ just the information available in the CIS. In an ideal world,
++ this would work for any PCMCIA card, but it requires a complete
++ and accurate CIS. In practice, a driver usually "knows" most of
++ these things without consulting the CIS, and most client drivers
++ will only use the CIS to fill in implementation-defined details.
++ */
++ tuple.Attributes = 0;
++ tuple.TupleData = (cisdata_t *)buf;
++ tuple.TupleDataMax = sizeof(buf);
++ tuple.TupleOffset = 0;
++ tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
++
++ /* don't trust the CIS on this; Linksys got it wrong */
++ //link->conf.Present = 0x63;
++
++ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
++ while (1) {
++ cistpl_cftable_entry_t dflt = { 0 };
++ cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
++ if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
++ pcmcia_parse_tuple(link, &tuple, &parse) != 0)
++ goto next_entry;
++
++ if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg;
++ if (cfg->index == 0) goto next_entry;
++ link->conf.ConfigIndex = cfg->index;
++
++ /* Does this card need audio output? */
++ if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
++ link->conf.Attributes |= CONF_ENABLE_SPKR;
++ link->conf.Status = CCSR_AUDIO_ENA;
++ }
++
++ /* Use power settings for Vcc and Vpp if present */
++ /* Note that the CIS values need to be rescaled */
++ if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
++ link->conf.Vpp =
++ cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
++ else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM))
++ link->conf.Vpp =
++ dflt.vpp1.param[CISTPL_POWER_VNOM]/10000;
++
++ /* Do we need to allocate an interrupt? */
++ if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
++ link->conf.Attributes |= CONF_ENABLE_IRQ;
++ if ((cfg->mem.nwin > 0) || (dflt.mem.nwin > 0)) {
++ cistpl_mem_t *mem =
++ (cfg->mem.nwin) ? &cfg->mem : &dflt.mem;
++// req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_AM|WIN_ENABLE|WIN_USE_WAIT;
++ req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE|WIN_USE_WAIT;
++ req.Base = mem->win[0].host_addr;
++ req.Size = mem->win[0].len;
++ req.Size=0x1000;
++ req.AccessSpeed = 0;
++ if (pcmcia_request_window(&link, &req, &link->win) != 0)
++ goto next_entry;
++ map.Page = 0; map.CardOffset = mem->win[0].card_addr;
++ if (pcmcia_map_mem_page(link->win, &map) != 0)
++ goto next_entry;
++ else
++ printk(KERN_INFO "MEMORY WINDOW FOUND!!!\n");
++ }
++ /* If we got this far, we're cool! */
++ break;
++
++ next_entry:
++ CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
++ }
++
++ if (link->conf.Attributes & CONF_ENABLE_IRQ) {
++ printk(KERN_INFO "requesting Irq...\n");
++ CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
++ }
++
++ /*
++ This actually configures the PCMCIA socket -- setting up
++ the I/O windows and the interrupt mapping, and putting the
++ card and host interface into "Memory and IO" mode.
++ */
++ CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
++ DEBUG(0,"RequestConfiguration OK\n");
++
++
++ memwin.Base=req.Base;
++ memwin.Size=req.Size;
++
++ acx_init_netdev(local->ndev, &link->dev, memwin.Base, memwin.Size, link->irq.AssignedIRQ);
++
++#if 1
++ /*
++ At this point, the dev_node_t structure(s) need to be
++ initialized and arranged in a linked list at link->dev_node.
++ */
++ strcpy(local->node.dev_name, local->ndev->name );
++ local->node.major = local->node.minor = 0;
++ link->dev_node = &local->node;
++
++ /* Finally, report what we've done */
++ printk(KERN_INFO "%s: index 0x%02x: ",
++ local->ndev->name, link->conf.ConfigIndex);
++#endif
++ if (link->conf.Attributes & CONF_ENABLE_IRQ)
++ printk("irq %d", link->irq.AssignedIRQ);
++ if (link->io.NumPorts1)
++ printk(", io 0x%04x-0x%04x", link->io.BasePort1,
++ link->io.BasePort1+link->io.NumPorts1-1);
++ if (link->io.NumPorts2)
++ printk(" & 0x%04x-0x%04x", link->io.BasePort2,
++ link->io.BasePort2+link->io.NumPorts2-1);
++ if (link->win)
++ printk(", mem 0x%06lx-0x%06lx\n", req.Base,
++ req.Base+req.Size-1);
++ return 0;
++
++ cs_failed:
++ cs_error(link, last_fn, last_ret);
++ acx_cs_release(link);
++ return -ENODEV;
++} /* acx_config */
++
++/*======================================================================
++
++ After a card is removed, acx_release() will unregister the
++ device, and release the PCMCIA configuration. If the device is
++ still open, this will be postponed until it is closed.
++
++ ======================================================================*/
++
++static void acx_cs_release(struct pcmcia_device *link)
++{
++ DEBUG(0, "acx_release(0x%p)\n", link);
++ acxmem_e_remove(link);
++ pcmcia_disable_device(link);
++}
++
++static int acx_cs_suspend(struct pcmcia_device *link)
++{
++ local_info_t *local = link->priv;
++
++ pm_message_t state;
++ acxmem_e_suspend ( local->ndev, state);
++ /* Already done in suspend
++ * netif_device_detach(local->ndev); */
++
++ return 0;
++}
++
++static int acx_cs_resume(struct pcmcia_device *link)
++{
++ local_info_t *local = link->priv;
++
++ FN_ENTER;
++ resume_ndev = local->ndev;
++
++ schedule_work( &fw_resume_work );
++
++ /* Already done in suspend
++ if (link->open) {
++ // do we need reset for ACX, if so what function nane is ?
++ //reset_acx_card(local->eth_dev);
++ netif_device_attach(local->ndev);
++ } */
++
++ FN_EXIT0;
++ return 0;
++}
++
++static struct pcmcia_device_id acx_ids[] = {
++ PCMCIA_DEVICE_MANF_CARD(0x0097, 0x8402),
++ PCMCIA_DEVICE_MANF_CARD(0x0250, 0xb001),
++ PCMCIA_DEVICE_NULL,
++};
++MODULE_DEVICE_TABLE(pcmcia, acx_ids);
++
++static struct pcmcia_driver acx_driver = {
++ .owner = THIS_MODULE,
++ .drv = {
++ .name = "acx_cs",
++ },
++ .probe = acx_cs_probe,
++ .remove = acx_cs_detach,
++ .id_table = acx_ids,
++ .suspend = acx_cs_suspend,
++ .resume = acx_cs_resume,
++};
++
++int acx_cs_init(void)
++{
++ /* return success if at least one succeeded */
++ DEBUG(0, "acxcs_init()\n");
++ return pcmcia_register_driver(&acx_driver);
++}
++
++void acx_cs_cleanup(void)
++{
++ pcmcia_unregister_driver(&acx_driver);
++}
++
++/*
++ This program is free software; you can redistribute it and/or
++ modify it under the terms of the GNU General Public License
++ as published by the Free Software Foundation; either version 2
++ of the License, or (at your option) any later version.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ In addition:
++
++ Redistribution and use in source and binary forms, with or without
++ modification, are permitted provided that the following conditions
++ are met:
++
++ 1. Redistributions of source code must retain the above copyright
++ notice, this list of conditions and the following disclaimer.
++ 2. Redistributions in binary form must reproduce the above copyright
++ notice, this list of conditions and the following disclaimer in the
++ documentation and/or other materials provided with the distribution.
++ 3. The name of the author may not be used to endorse or promote
++ products derived from this software without specific prior written
++ permission.
++
++ THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
++ IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
++ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
++ INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
++ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
++ STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
++ IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
++ POSSIBILITY OF SUCH DAMAGE.
++*/
++
++MODULE_DESCRIPTION( "ACX Cardbus Driver" );
++MODULE_LICENSE( "GPL" );
++
+Index: linux-2.6.22/drivers/net/wireless/acx/htcsable_acx.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/htcsable_acx.c 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,118 @@
++/*
++ * WLAN (TI TNETW1100B) support in the HTC Sable
++ *
++ * Copyright (c) 2006 SDG Systems, LLC
++ *
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License. See the file COPYING in the main directory of this archive for
++ * more details.
++ *
++ * 28-March-2006 Todd Blumer <todd@sdgsystems.com>
++ */
++
++
++#include <linux/kernel.h>
++#include <linux/platform_device.h>
++#include <linux/delay.h>
++
++#include <asm/hardware.h>
++
++#include <asm/arch/pxa-regs.h>
++#include <linux/mfd/asic3_base.h>
++#include <asm/arch/htcsable-gpio.h>
++#include <asm/arch/htcsable-asic.h>
++#include <asm/io.h>
++
++#include "acx_hw.h"
++
++#define WLAN_BASE PXA_CS2_PHYS
++
++/*
++off: b15 c8 d3
++on: d3 c8 b5 b5-
++*/
++
++#define GPIO_NR_HTCSABLE_ACX111 111
++
++static int
++htcsable_wlan_stop( void );
++
++static int
++htcsable_wlan_start( void )
++{
++ printk( "htcsable_wlan_start\n" );
++
++ /*asic3_set_gpio_out_c(&htcsable_asic3.dev, 1<<GPIOC_ACX_RESET, 0);*/
++ asic3_set_gpio_out_c(&htcsable_asic3.dev, 1<<GPIOC_ACX_PWR_3, 1<<GPIOC_ACX_PWR_3); /* related to acx */
++ SET_HTCSABLE_GPIO(ACX111, 1);
++ asic3_set_gpio_out_b(&htcsable_asic3.dev, 1<<GPIOB_ACX_PWR_1, 1<<GPIOB_ACX_PWR_1);
++ asic3_set_gpio_out_d(&htcsable_asic3.dev, 1<<GPIOD_ACX_PWR_2, 1<<GPIOD_ACX_PWR_2);
++ mdelay(260);
++ asic3_set_gpio_out_c(&htcsable_asic3.dev, 1<<GPIOC_ACX_RESET, 1<<GPIOC_ACX_RESET);
++
++ return 0;
++}
++
++static int
++htcsable_wlan_stop( void )
++{
++ printk( "htcsable_wlan_stop\n" );
++ asic3_set_gpio_out_b(&htcsable_asic3.dev, 1<<GPIOB_ACX_PWR_1, 0);
++ asic3_set_gpio_out_c(&htcsable_asic3.dev, 1<<GPIOC_ACX_RESET, 0);
++ asic3_set_gpio_out_d(&htcsable_asic3.dev, 1<<GPIOD_ACX_PWR_2, 0);
++ SET_HTCSABLE_GPIO(ACX111, 0); /* not necessary to power down this one? */
++ asic3_set_gpio_out_c(&htcsable_asic3.dev, 1<<GPIOC_ACX_PWR_3, 0); /* not necessary to power down this one? */
++
++ return 0;
++}
++
++static struct resource acx_resources[] = {
++ [0] = {
++ .start = WLAN_BASE,
++ .end = WLAN_BASE + 0x20,
++ .flags = IORESOURCE_MEM,
++ },
++ [1] = {
++// .start = asic3_irq_base(&htcsable_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N,
++// .end = asic3_irq_base(&htcsable_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N,
++ .flags = IORESOURCE_IRQ,
++ },
++};
++
++static struct acx_hardware_data acx_data = {
++ .start_hw = htcsable_wlan_start,
++ .stop_hw = htcsable_wlan_stop,
++};
++
++static struct platform_device acx_device = {
++ .name = "acx-mem",
++ .dev = {
++ .platform_data = &acx_data,
++ },
++ .num_resources = ARRAY_SIZE( acx_resources ),
++ .resource = acx_resources,
++};
++
++static int __init
++htcsable_wlan_init( void )
++{
++ printk( "htcsable_wlan_init: acx-mem platform_device_register\n" );
++ acx_device.resource[1].start = asic3_irq_base(&htcsable_asic3.dev) + ASIC3_GPIOB_IRQ_BASE+GPIOB_ACX_IRQ_N;
++ acx_device.resource[1].end = asic3_irq_base(&htcsable_asic3.dev) + ASIC3_GPIOB_IRQ_BASE+GPIOB_ACX_IRQ_N;
++ return platform_device_register( &acx_device );
++}
++
++
++static void __exit
++htcsable_wlan_exit( void )
++{
++ platform_device_unregister( &acx_device );
++}
++
++module_init( htcsable_wlan_init );
++module_exit( htcsable_wlan_exit );
++
++MODULE_AUTHOR( "Todd Blumer <todd@sdgsystems.com>" );
++MODULE_DESCRIPTION( "WLAN driver for HTC Sable" );
++MODULE_LICENSE( "GPL" );
++
+Index: linux-2.6.22/drivers/net/wireless/acx/htcuniversal_acx.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/htcuniversal_acx.c 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,108 @@
++/*
++ * WLAN (TI TNETW1100B) support in the HTC Universal
++ *
++ * Copyright (c) 2006 SDG Systems, LLC
++ *
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License. See the file COPYING in the main directory of this archive for
++ * more details.
++ *
++ * 28-March-2006 Todd Blumer <todd@sdgsystems.com>
++ */
++
++
++#include <linux/kernel.h>
++#include <linux/platform_device.h>
++#include <linux/delay.h>
++
++#include <asm/hardware.h>
++
++#include <asm/arch/pxa-regs.h>
++#include <linux/soc/asic3_base.h>
++#include <asm/arch/htcuniversal-gpio.h>
++#include <asm/arch/htcuniversal-asic.h>
++#include <asm/io.h>
++
++#include "acx_hw.h"
++
++#define WLAN_BASE PXA_CS2_PHYS
++
++
++static int
++htcuniversal_wlan_start( void )
++{
++ htcuniversal_egpio_enable(1<<EGPIO6_WIFI_ON);
++ asic3_set_gpio_out_c(&htcuniversal_asic3.dev, 1<<GPIOC_WIFI_PWR1_ON, 1<<GPIOC_WIFI_PWR1_ON);
++ asic3_set_gpio_out_d(&htcuniversal_asic3.dev, 1<<GPIOD_WIFI_PWR3_ON, 1<<GPIOD_WIFI_PWR3_ON);
++ asic3_set_gpio_out_d(&htcuniversal_asic3.dev, 1<<GPIOD_WIFI_PWR2_ON, 1<<GPIOD_WIFI_PWR2_ON);
++ mdelay(100);
++
++ asic3_set_gpio_out_c(&htcuniversal_asic3.dev, 1<<GPIOC_WIFI_RESET, 0);
++ mdelay(100);
++ asic3_set_gpio_out_c(&htcuniversal_asic3.dev, 1<<GPIOC_WIFI_RESET, 1<<GPIOC_WIFI_RESET);
++ mdelay(100);
++ return 0;
++}
++
++static int
++htcuniversal_wlan_stop( void )
++{
++ asic3_set_gpio_out_c(&htcuniversal_asic3.dev, 1<<GPIOC_WIFI_RESET, 0);
++
++ htcuniversal_egpio_disable(1<<EGPIO6_WIFI_ON);
++ asic3_set_gpio_out_c(&htcuniversal_asic3.dev, 1<<GPIOC_WIFI_PWR1_ON, 0);
++ asic3_set_gpio_out_d(&htcuniversal_asic3.dev, 1<<GPIOD_WIFI_PWR2_ON, 0);
++ asic3_set_gpio_out_d(&htcuniversal_asic3.dev, 1<<GPIOD_WIFI_PWR3_ON, 0);
++ return 0;
++}
++
++static struct resource acx_resources[] = {
++ [0] = {
++ .start = WLAN_BASE,
++ .end = WLAN_BASE + 0x20,
++ .flags = IORESOURCE_MEM,
++ },
++ [1] = {
++// .start = asic3_irq_base(&htcuniversal_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N,
++// .end = asic3_irq_base(&htcuniversal_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N,
++ .flags = IORESOURCE_IRQ,
++ },
++};
++
++static struct acx_hardware_data acx_data = {
++ .start_hw = htcuniversal_wlan_start,
++ .stop_hw = htcuniversal_wlan_stop,
++};
++
++static struct platform_device acx_device = {
++ .name = "acx-mem",
++ .dev = {
++ .platform_data = &acx_data,
++ },
++ .num_resources = ARRAY_SIZE( acx_resources ),
++ .resource = acx_resources,
++};
++
++static int __init
++htcuniversal_wlan_init( void )
++{
++ printk( "htcuniversal_wlan_init: acx-mem platform_device_register\n" );
++ acx_device.resource[1].start = asic3_irq_base(&htcuniversal_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N;
++ acx_device.resource[1].end = asic3_irq_base(&htcuniversal_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N;
++ return platform_device_register( &acx_device );
++}
++
++
++static void __exit
++htcuniversal_wlan_exit( void )
++{
++ platform_device_unregister( &acx_device );
++}
++
++module_init( htcuniversal_wlan_init );
++module_exit( htcuniversal_wlan_exit );
++
++MODULE_AUTHOR( "Todd Blumer <todd@sdgsystems.com>" );
++MODULE_DESCRIPTION( "WLAN driver for HTC Universal" );
++MODULE_LICENSE( "GPL" );
++
+Index: linux-2.6.22/drivers/net/wireless/acx/hx4700_acx.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/hx4700_acx.c 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,108 @@
++/*
++ * WLAN (TI TNETW1100B) support in the hx470x.
++ *
++ * Copyright (c) 2006 SDG Systems, LLC
++ *
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License. See the file COPYING in the main directory of this archive for
++ * more details.
++ *
++ * 28-March-2006 Todd Blumer <todd@sdgsystems.com>
++ */
++
++
++#include <linux/kernel.h>
++#include <linux/platform_device.h>
++#include <linux/delay.h>
++#include <linux/leds.h>
++
++#include <asm/hardware.h>
++
++#include <asm/arch/pxa-regs.h>
++#include <asm/arch/hx4700-gpio.h>
++#include <asm/arch/hx4700-core.h>
++#include <asm/io.h>
++
++#include "acx_hw.h"
++
++#define WLAN_OFFSET 0x1000000
++#define WLAN_BASE (PXA_CS5_PHYS+WLAN_OFFSET)
++
++
++static int
++hx4700_wlan_start( void )
++{
++ SET_HX4700_GPIO( WLAN_RESET_N, 0 );
++ mdelay(5);
++ hx4700_egpio_enable( EGPIO0_VCC_3V3_EN );
++ mdelay(100);
++ hx4700_egpio_enable( EGPIO7_VCC_3V3_WL_EN );
++ mdelay(150);
++ hx4700_egpio_enable( EGPIO1_WL_VREG_EN | EGPIO2_VCC_2V1_WL_EN |
++ EGPIO6_WL1V8_EN );
++ mdelay(10);
++ SET_HX4700_GPIO( WLAN_RESET_N, 1 );
++ mdelay(50);
++ led_trigger_event_shared(hx4700_radio_trig, LED_FULL);
++ return 0;
++}
++
++static int
++hx4700_wlan_stop( void )
++{
++ hx4700_egpio_disable( EGPIO0_VCC_3V3_EN | EGPIO1_WL_VREG_EN |
++ EGPIO7_VCC_3V3_WL_EN | EGPIO2_VCC_2V1_WL_EN |
++ EGPIO6_WL1V8_EN );
++ SET_HX4700_GPIO( WLAN_RESET_N, 0 );
++ led_trigger_event_shared(hx4700_radio_trig, LED_OFF);
++ return 0;
++}
++
++static struct resource acx_resources[] = {
++ [0] = {
++ .start = WLAN_BASE,
++ .end = WLAN_BASE + 0x20,
++ .flags = IORESOURCE_MEM,
++ },
++ [1] = {
++ .start = HX4700_IRQ(WLAN_IRQ_N),
++ .end = HX4700_IRQ(WLAN_IRQ_N),
++ .flags = IORESOURCE_IRQ,
++ },
++};
++
++static struct acx_hardware_data acx_data = {
++ .start_hw = hx4700_wlan_start,
++ .stop_hw = hx4700_wlan_stop,
++};
++
++static struct platform_device acx_device = {
++ .name = "acx-mem",
++ .dev = {
++ .platform_data = &acx_data,
++ },
++ .num_resources = ARRAY_SIZE( acx_resources ),
++ .resource = acx_resources,
++};
++
++static int __init
++hx4700_wlan_init( void )
++{
++ printk( "hx4700_wlan_init: acx-mem platform_device_register\n" );
++ return platform_device_register( &acx_device );
++}
++
++
++static void __exit
++hx4700_wlan_exit( void )
++{
++ platform_device_unregister( &acx_device );
++}
++
++module_init( hx4700_wlan_init );
++module_exit( hx4700_wlan_exit );
++
++MODULE_AUTHOR( "Todd Blumer <todd@sdgsystems.com>" );
++MODULE_DESCRIPTION( "WLAN driver for iPAQ hx4700" );
++MODULE_LICENSE( "GPL" );
++
+Index: linux-2.6.22/drivers/net/wireless/acx/ioctl.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/ioctl.c 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,2748 @@
++/***********************************************************************
++** Copyright (C) 2003 ACX100 Open Source Project
++**
++** The contents of this file are subject to the Mozilla Public
++** License Version 1.1 (the "License"); you may not use this file
++** except in compliance with the License. You may obtain a copy of
++** the License at http://www.mozilla.org/MPL/
++**
++** Software distributed under the License is distributed on an "AS
++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
++** implied. See the License for the specific language governing
++** rights and limitations under the License.
++**
++** Alternatively, the contents of this file may be used under the
++** terms of the GNU Public License version 2 (the "GPL"), in which
++** case the provisions of the GPL are applicable instead of the
++** above. If you wish to allow the use of your version of this file
++** only under the terms of the GPL and not to allow others to use
++** your version of this file under the MPL, indicate your decision
++** by deleting the provisions above and replace them with the notice
++** and other provisions required by the GPL. If you do not delete
++** the provisions above, a recipient may use your version of this
++** file under either the MPL or the GPL.
++** ---------------------------------------------------------------------
++** Inquiries regarding the ACX100 Open Source Project can be
++** made directly to:
++**
++** acx100-users@lists.sf.net
++** http://acx100.sf.net
++** ---------------------------------------------------------------------
++*/
++
++#include <linux/version.h>
++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
++#include <linux/config.h>
++#endif
++#include <linux/kernel.h>
++#include <linux/types.h>
++#include <asm/io.h>
++/* #include <asm/uaccess.h> */ /* required for 2.4.x kernels; verify_write() */
++#include <linux/if_arp.h>
++#include <linux/wireless.h>
++#include <net/iw_handler.h>
++
++#include "acx.h"
++
++
++/***********************************************************************
++*/
++
++/* channel frequencies
++ * TODO: Currently, every other 802.11 driver keeps its own copy of this. In
++ * the long run this should be integrated into ieee802_11.h or wireless.h or
++ * whatever IEEE802.11x framework evolves */
++static const u16 acx_channel_freq[] = {
++ 2412, 2417, 2422, 2427, 2432, 2437, 2442,
++ 2447, 2452, 2457, 2462, 2467, 2472, 2484,
++};
++
++
++/***********************************************************************
++** acx_ioctl_commit
++*/
++static int
++acx_ioctl_commit(struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++ if (ACX_STATE_IFACE_UP & adev->dev_state_mask)
++ acx_s_update_card_settings(adev);
++ acx_sem_unlock(adev);
++
++ FN_EXIT0;
++ return OK;
++}
++
++
++/***********************************************************************
++*/
++static int
++acx_ioctl_get_name(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ static const char * const names[] = { "IEEE 802.11b+/g+", "IEEE 802.11b+" };
++
++ strcpy(wrqu->name, names[IS_ACX111(adev) ? 0 : 1]);
++
++ return OK;
++}
++
++
++/***********************************************************************
++** acx_ioctl_set_freq
++*/
++static int
++acx_ioctl_set_freq(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int channel = -1;
++ unsigned int mult = 1;
++ int result;
++
++ FN_ENTER;
++
++ if (wrqu->freq.e == 0 && wrqu->freq.m <= 1000) {
++ /* Setting by channel number */
++ channel = wrqu->freq.m;
++ } else {
++ /* If setting by frequency, convert to a channel */
++ int i;
++
++ for (i = 0; i < (6 - wrqu->freq.e); i++)
++ mult *= 10;
++
++ for (i = 1; i <= 14; i++)
++ if (wrqu->freq.m == acx_channel_freq[i - 1] * mult)
++ channel = i;
++ }
++
++ if (channel > 14) {
++ result = -EINVAL;
++ goto end;
++ }
++
++ acx_sem_lock(adev);
++
++ adev->channel = channel;
++ /* hmm, the following code part is strange, but this is how
++ * it was being done before... */
++ log(L_IOCTL, "Changing to channel %d\n", channel);
++ SET_BIT(adev->set_mask, GETSET_CHANNEL);
++
++ result = -EINPROGRESS; /* need to call commit handler */
++
++ acx_sem_unlock(adev);
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++*/
++static inline int
++acx_ioctl_get_freq(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ wrqu->freq.e = 0;
++ wrqu->freq.m = adev->channel;
++ return OK;
++}
++
++
++/***********************************************************************
++** acx_ioctl_set_mode
++*/
++static int
++acx_ioctl_set_mode(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int result;
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++
++ switch (wrqu->mode) {
++ case IW_MODE_AUTO:
++ adev->mode = ACX_MODE_OFF;
++ break;
++ case IW_MODE_MONITOR:
++ adev->mode = ACX_MODE_MONITOR;
++ break;
++ case IW_MODE_ADHOC:
++ adev->mode = ACX_MODE_0_ADHOC;
++ break;
++ case IW_MODE_INFRA:
++ adev->mode = ACX_MODE_2_STA;
++ break;
++ case IW_MODE_MASTER:
++ printk("acx: master mode (HostAP) is very, very "
++ "experimental! It might work partially, but "
++ "better get prepared for nasty surprises "
++ "at any time\n");
++ adev->mode = ACX_MODE_3_AP;
++ break;
++ case IW_MODE_REPEAT:
++ case IW_MODE_SECOND:
++ default:
++ result = -EOPNOTSUPP;
++ goto end_unlock;
++ }
++
++ log(L_ASSOC, "new adev->mode=%d\n", adev->mode);
++ SET_BIT(adev->set_mask, GETSET_MODE);
++ result = -EINPROGRESS;
++
++end_unlock:
++ acx_sem_unlock(adev);
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++*/
++static int
++acx_ioctl_get_mode(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int result = 0;
++
++ switch (adev->mode) {
++ case ACX_MODE_OFF:
++ wrqu->mode = IW_MODE_AUTO; break;
++ case ACX_MODE_MONITOR:
++ wrqu->mode = IW_MODE_MONITOR; break;
++ case ACX_MODE_0_ADHOC:
++ wrqu->mode = IW_MODE_ADHOC; break;
++ case ACX_MODE_2_STA:
++ wrqu->mode = IW_MODE_INFRA; break;
++ case ACX_MODE_3_AP:
++ wrqu->mode = IW_MODE_MASTER; break;
++ default:
++ result = -EOPNOTSUPP;
++ }
++ return result;
++}
++
++
++/***********************************************************************
++*/
++static int
++acx_ioctl_set_sens(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_param *vwrq = &wrqu->sens;
++ acx_device_t *adev = ndev2adev(ndev);
++
++ acx_sem_lock(adev);
++
++ adev->sensitivity = (1 == vwrq->disabled) ? 0 : vwrq->value;
++ SET_BIT(adev->set_mask, GETSET_SENSITIVITY);
++
++ acx_sem_unlock(adev);
++
++ return -EINPROGRESS;
++}
++
++
++/***********************************************************************
++*/
++static int
++acx_ioctl_get_sens(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_param *vwrq = &wrqu->sens;
++ acx_device_t *adev = ndev2adev(ndev);
++
++ if (IS_USB(adev))
++ /* setting the PHY reg via fw cmd doesn't work yet */
++ return -EOPNOTSUPP;
++
++ /* acx_sem_lock(adev); */
++
++ vwrq->value = adev->sensitivity;
++ vwrq->disabled = (vwrq->value == 0);
++ vwrq->fixed = 1;
++
++ /* acx_sem_unlock(adev); */
++
++ return OK;
++}
++
++
++/***********************************************************************
++** acx_ioctl_set_ap
++**
++** Sets the MAC address of the AP to associate with
++*/
++static int
++acx_ioctl_set_ap(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct sockaddr *awrq = &wrqu->ap_addr;
++ acx_device_t *adev = ndev2adev(ndev);
++ int result = 0;
++ const u8 *ap;
++
++ FN_ENTER;
++ if (NULL == awrq) {
++ result = -EFAULT;
++ goto end;
++ }
++ if (ARPHRD_ETHER != awrq->sa_family) {
++ result = -EINVAL;
++ goto end;
++ }
++
++ ap = awrq->sa_data;
++ acxlog_mac(L_IOCTL, "set AP=", ap, "\n");
++
++ MAC_COPY(adev->ap, ap);
++
++ /* We want to start rescan in managed or ad-hoc mode,
++ ** otherwise just set adev->ap.
++ ** "iwconfig <if> ap <mac> mode managed": we must be able
++ ** to set ap _first_ and _then_ set mode */
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ case ACX_MODE_2_STA:
++ /* FIXME: if there is a convention on what zero AP means,
++ ** please add a comment about that. I don't know of any --vda */
++ if (mac_is_zero(ap)) {
++ /* "off" == 00:00:00:00:00:00 */
++ MAC_BCAST(adev->ap);
++ log(L_IOCTL, "Not reassociating\n");
++ } else {
++ log(L_IOCTL, "Forcing reassociation\n");
++ SET_BIT(adev->set_mask, GETSET_RESCAN);
++ }
++ break;
++ }
++ result = -EINPROGRESS;
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++*/
++static int
++acx_ioctl_get_ap(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct sockaddr *awrq = &wrqu->ap_addr;
++ acx_device_t *adev = ndev2adev(ndev);
++
++ if (ACX_STATUS_4_ASSOCIATED == adev->status) {
++ /* as seen in Aironet driver, airo.c */
++ MAC_COPY(awrq->sa_data, adev->bssid);
++ } else {
++ MAC_ZERO(awrq->sa_data);
++ }
++ awrq->sa_family = ARPHRD_ETHER;
++ return OK;
++}
++
++
++/***********************************************************************
++** acx_ioctl_get_aplist
++**
++** Deprecated in favor of iwscan.
++** We simply return the list of currently available stations in range,
++** don't do a new scan.
++*/
++static int
++acx_ioctl_get_aplist(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_point *dwrq = &wrqu->data;
++ acx_device_t *adev = ndev2adev(ndev);
++ struct sockaddr *address = (struct sockaddr *) extra;
++ struct iw_quality qual[IW_MAX_AP];
++ int i, cur;
++ int result = OK;
++
++ FN_ENTER;
++
++ /* we have AP list only in STA mode */
++ if (ACX_MODE_2_STA != adev->mode) {
++ result = -EOPNOTSUPP;
++ goto end;
++ }
++
++ cur = 0;
++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
++ struct client *bss = &adev->sta_list[i];
++ if (!bss->used) continue;
++ MAC_COPY(address[cur].sa_data, bss->bssid);
++ address[cur].sa_family = ARPHRD_ETHER;
++ qual[cur].level = bss->sir;
++ qual[cur].noise = bss->snr;
++#ifndef OLD_QUALITY
++ qual[cur].qual = acx_signal_determine_quality(qual[cur].level,
++ qual[cur].noise);
++#else
++ qual[cur].qual = (qual[cur].noise <= 100) ?
++ 100 - qual[cur].noise : 0;
++#endif
++ /* no scan: level/noise/qual not updated: */
++ qual[cur].updated = 0;
++ cur++;
++ }
++ if (cur) {
++ dwrq->flags = 1;
++ memcpy(extra + sizeof(struct sockaddr)*cur, &qual,
++ sizeof(struct iw_quality)*cur);
++ }
++ dwrq->length = cur;
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++*/
++static int
++acx_ioctl_set_scan(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int result;
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++
++ /* don't start scan if device is not up yet */
++ if (!(adev->dev_state_mask & ACX_STATE_IFACE_UP)) {
++ result = -EAGAIN;
++ goto end_unlock;
++ }
++
++ /* This is NOT a rescan for new AP!
++ ** Do not use SET_BIT(GETSET_RESCAN); */
++ acx_s_cmd_start_scan(adev);
++ result = OK;
++
++end_unlock:
++ acx_sem_unlock(adev);
++/* end: */
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_s_scan_add_station
++*/
++/* helper. not sure whether it's really a _s_leeping fn */
++static char*
++acx_s_scan_add_station(
++ acx_device_t *adev,
++ char *ptr,
++ char *end_buf,
++ struct client *bss)
++{
++ struct iw_event iwe;
++ char *ptr_rate;
++
++ FN_ENTER;
++
++ /* MAC address has to be added first */
++ iwe.cmd = SIOCGIWAP;
++ iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
++ MAC_COPY(iwe.u.ap_addr.sa_data, bss->bssid);
++ acxlog_mac(L_IOCTL, "scan, station address: ", bss->bssid, "\n");
++ ptr = iwe_stream_add_event(ptr, end_buf, &iwe, IW_EV_ADDR_LEN);
++
++ /* Add ESSID */
++ iwe.cmd = SIOCGIWESSID;
++ iwe.u.data.length = bss->essid_len;
++ iwe.u.data.flags = 1;
++ log(L_IOCTL, "scan, essid: %s\n", bss->essid);
++ ptr = iwe_stream_add_point(ptr, end_buf, &iwe, bss->essid);
++
++ /* Add mode */
++ iwe.cmd = SIOCGIWMODE;
++ if (bss->cap_info & (WF_MGMT_CAP_ESS | WF_MGMT_CAP_IBSS)) {
++ if (bss->cap_info & WF_MGMT_CAP_ESS)
++ iwe.u.mode = IW_MODE_MASTER;
++ else
++ iwe.u.mode = IW_MODE_ADHOC;
++ log(L_IOCTL, "scan, mode: %d\n", iwe.u.mode);
++ ptr = iwe_stream_add_event(ptr, end_buf, &iwe, IW_EV_UINT_LEN);
++ }
++
++ /* Add frequency */
++ iwe.cmd = SIOCGIWFREQ;
++ iwe.u.freq.m = acx_channel_freq[bss->channel - 1] * 100000;
++ iwe.u.freq.e = 1;
++ log(L_IOCTL, "scan, frequency: %d\n", iwe.u.freq.m);
++ ptr = iwe_stream_add_event(ptr, end_buf, &iwe, IW_EV_FREQ_LEN);
++
++ /* Add link quality */
++ iwe.cmd = IWEVQUAL;
++ /* FIXME: these values should be expressed in dBm, but we don't know
++ * how to calibrate it yet */
++ iwe.u.qual.level = bss->sir;
++ iwe.u.qual.noise = bss->snr;
++#ifndef OLD_QUALITY
++ iwe.u.qual.qual = acx_signal_determine_quality(iwe.u.qual.level,
++ iwe.u.qual.noise);
++#else
++ iwe.u.qual.qual = (iwe.u.qual.noise <= 100) ?
++ 100 - iwe.u.qual.noise : 0;
++#endif
++ iwe.u.qual.updated = 7;
++ log(L_IOCTL, "scan, link quality: %d/%d/%d\n",
++ iwe.u.qual.level, iwe.u.qual.noise, iwe.u.qual.qual);
++ ptr = iwe_stream_add_event(ptr, end_buf, &iwe, IW_EV_QUAL_LEN);
++
++ /* Add encryption */
++ iwe.cmd = SIOCGIWENCODE;
++ if (bss->cap_info & WF_MGMT_CAP_PRIVACY)
++ iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
++ else
++ iwe.u.data.flags = IW_ENCODE_DISABLED;
++ iwe.u.data.length = 0;
++ log(L_IOCTL, "scan, encryption flags: %X\n", iwe.u.data.flags);
++ ptr = iwe_stream_add_point(ptr, end_buf, &iwe, bss->essid);
++
++ /* add rates */
++ iwe.cmd = SIOCGIWRATE;
++ iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
++ ptr_rate = ptr + IW_EV_LCP_LEN;
++
++ {
++ u16 rate = bss->rate_cap;
++ const u8* p = acx_bitpos2ratebyte;
++ while (rate) {
++ if (rate & 1) {
++ iwe.u.bitrate.value = *p * 500000; /* units of 500kb/s */
++ log(L_IOCTL, "scan, rate: %d\n", iwe.u.bitrate.value);
++ ptr_rate = iwe_stream_add_value(ptr, ptr_rate, end_buf,
++ &iwe, IW_EV_PARAM_LEN);
++ }
++ rate >>= 1;
++ p++;
++ }}
++
++ if ((ptr_rate - ptr) > (ptrdiff_t)IW_EV_LCP_LEN)
++ ptr = ptr_rate;
++
++ /* drop remaining station data items for now */
++
++ FN_EXIT0;
++ return ptr;
++}
++
++
++/***********************************************************************
++ * acx_ioctl_get_scan
++ */
++static int
++acx_ioctl_get_scan(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_point *dwrq = &wrqu->data;
++ acx_device_t *adev = ndev2adev(ndev);
++ char *ptr = extra;
++ int i;
++ int result = OK;
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++
++ /* no scan available if device is not up yet */
++ if (!(adev->dev_state_mask & ACX_STATE_IFACE_UP)) {
++ log(L_IOCTL, "iface not up yet\n");
++ result = -EAGAIN;
++ goto end_unlock;
++ }
++
++#ifdef ENODATA_TO_BE_USED_AFTER_SCAN_ERROR_ONLY
++ if (adev->bss_table_count == 0) {
++ /* no stations found */
++ result = -ENODATA;
++ goto end_unlock;
++ }
++#endif
++
++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
++ struct client *bss = &adev->sta_list[i];
++ if (!bss->used) continue;
++ ptr = acx_s_scan_add_station(adev, ptr,
++ extra + IW_SCAN_MAX_DATA, bss);
++ }
++ dwrq->length = ptr - extra;
++ dwrq->flags = 0;
++
++end_unlock:
++ acx_sem_unlock(adev);
++/* end: */
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_ioctl_set_essid
++*/
++static int
++acx_ioctl_set_essid(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_point *dwrq = &wrqu->essid;
++ acx_device_t *adev = ndev2adev(ndev);
++ int len = dwrq->length;
++ int result;
++
++ FN_ENTER;
++
++ if (len < 0) {
++ result = -EINVAL;
++ goto end;
++ }
++
++ log(L_IOCTL, "set ESSID '%*s', length %d, flags 0x%04X\n",
++ len, extra, len, dwrq->flags);
++
++#if WIRELESS_EXT >= 21
++ /* WE 21 gives real ESSID strlen, not +1 (trailing zero):
++ * see LKML "[patch] drivers/net/wireless: correct reported ssid lengths" */
++ len += 1;
++#endif
++
++ acx_sem_lock(adev);
++
++ /* ESSID disabled? */
++ if (0 == dwrq->flags) {
++ adev->essid_active = 0;
++
++ } else {
++ if (len > IW_ESSID_MAX_SIZE) {
++ result = -E2BIG;
++ goto end_unlock;
++ }
++
++ if (len >= sizeof(adev->essid))
++ len = sizeof(adev->essid) - 1;
++ memcpy(adev->essid, extra, len);
++ adev->essid[len] = '\0';
++ /* Paranoia: just in case there is a '\0'... */
++ adev->essid_len = strlen(adev->essid);
++ adev->essid_active = 1;
++ }
++
++ SET_BIT(adev->set_mask, GETSET_RESCAN);
++
++ result = -EINPROGRESS;
++
++end_unlock:
++ acx_sem_unlock(adev);
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++*/
++static int
++acx_ioctl_get_essid(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_point *dwrq = &wrqu->essid;
++ acx_device_t *adev = ndev2adev(ndev);
++
++ dwrq->flags = adev->essid_active;
++ if (adev->essid_active) {
++ memcpy(extra, adev->essid, adev->essid_len);
++ extra[adev->essid_len] = '\0';
++ dwrq->length = adev->essid_len + 1;
++ dwrq->flags = 1;
++ }
++ return OK;
++}
++
++
++/***********************************************************************
++** acx_l_update_client_rates
++*/
++static void
++acx_l_update_client_rates(acx_device_t *adev, u16 rate)
++{
++ int i;
++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
++ client_t *clt = &adev->sta_list[i];
++ if (!clt->used) continue;
++ clt->rate_cfg = (clt->rate_cap & rate);
++ if (!clt->rate_cfg) {
++ /* no compatible rates left: kick client */
++ acxlog_mac(L_ASSOC, "client ",clt->address," kicked: "
++ "rates are not compatible anymore\n");
++ acx_l_sta_list_del(adev, clt);
++ continue;
++ }
++ clt->rate_cur &= clt->rate_cfg;
++ if (!clt->rate_cur) {
++ /* current rate become invalid, choose a valid one */
++ clt->rate_cur = 1 << lowest_bit(clt->rate_cfg);
++ }
++ if (IS_ACX100(adev))
++ clt->rate_100 = acx_bitpos2rate100[highest_bit(clt->rate_cur)];
++ clt->fallback_count = clt->stepup_count = 0;
++ clt->ignore_count = 16;
++ }
++ switch (adev->mode) {
++ case ACX_MODE_2_STA:
++ if (adev->ap_client && !adev->ap_client->used) {
++ /* Owwww... we kicked our AP!! :) */
++ SET_BIT(adev->set_mask, GETSET_RESCAN);
++ }
++ }
++}
++
++
++/***********************************************************************
++*/
++/* maps bits from acx111 rate to rate in Mbits */
++static const unsigned int
++acx111_rate_tbl[] = {
++ 1000000, /* 0 */
++ 2000000, /* 1 */
++ 5500000, /* 2 */
++ 6000000, /* 3 */
++ 9000000, /* 4 */
++ 11000000, /* 5 */
++ 12000000, /* 6 */
++ 18000000, /* 7 */
++ 22000000, /* 8 */
++ 24000000, /* 9 */
++ 36000000, /* 10 */
++ 48000000, /* 11 */
++ 54000000, /* 12 */
++ 500000, /* 13, should not happen */
++ 500000, /* 14, should not happen */
++ 500000, /* 15, should not happen */
++};
++
++/***********************************************************************
++ * acx_ioctl_set_rate
++ */
++static int
++acx_ioctl_set_rate(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_param *vwrq = &wrqu->param;
++ acx_device_t *adev = ndev2adev(ndev);
++ u16 txrate_cfg = 1;
++ unsigned long flags;
++ int autorate;
++ int result = -EINVAL;
++
++ FN_ENTER;
++ log(L_IOCTL, "rate %d fixed 0x%X disabled 0x%X flags 0x%X\n",
++ vwrq->value, vwrq->fixed, vwrq->disabled, vwrq->flags);
++
++ if ((0 == vwrq->fixed) || (1 == vwrq->fixed)) {
++ int i = VEC_SIZE(acx111_rate_tbl)-1;
++ if (vwrq->value == -1)
++ /* "iwconfig rate auto" --> choose highest */
++ vwrq->value = IS_ACX100(adev) ? 22000000 : 54000000;
++ while (i >= 0) {
++ if (vwrq->value == acx111_rate_tbl[i]) {
++ txrate_cfg <<= i;
++ i = 0;
++ break;
++ }
++ i--;
++ }
++ if (i == -1) { /* no matching rate */
++ result = -EINVAL;
++ goto end;
++ }
++ } else { /* rate N, N<1000 (driver specific): we don't use this */
++ result = -EOPNOTSUPP;
++ goto end;
++ }
++ /* now: only one bit is set in txrate_cfg, corresponding to
++ ** indicated rate */
++
++ autorate = (vwrq->fixed == 0) && (RATE111_1 != txrate_cfg);
++ if (autorate) {
++ /* convert 00100000 -> 00111111 */
++ txrate_cfg = (txrate_cfg<<1)-1;
++ }
++
++ if (IS_ACX100(adev)) {
++ txrate_cfg &= RATE111_ACX100_COMPAT;
++ if (!txrate_cfg) {
++ result = -ENOTSUPP; /* rate is not supported by acx100 */
++ goto end;
++ }
++ }
++
++ acx_sem_lock(adev);
++ acx_lock(adev, flags);
++
++ adev->rate_auto = autorate;
++ adev->rate_oper = txrate_cfg;
++ adev->rate_basic = txrate_cfg;
++ /* only do that in auto mode, non-auto will be able to use
++ * one specific Tx rate only anyway */
++ if (autorate) {
++ /* only use 802.11b base rates, for standard 802.11b H/W
++ * compatibility */
++ adev->rate_basic &= RATE111_80211B_COMPAT;
++ }
++ adev->rate_bcast = 1 << lowest_bit(txrate_cfg);
++ if (IS_ACX100(adev))
++ adev->rate_bcast100 = acx_rate111to100(adev->rate_bcast);
++ acx_l_update_ratevector(adev);
++ acx_l_update_client_rates(adev, txrate_cfg);
++
++ /* Do/don't do tx rate fallback; beacon contents and rate */
++ SET_BIT(adev->set_mask, SET_RATE_FALLBACK|SET_TEMPLATES);
++ result = -EINPROGRESS;
++
++ acx_unlock(adev, flags);
++ acx_sem_unlock(adev);
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_ioctl_get_rate
++*/
++static int
++acx_ioctl_get_rate(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_param *vwrq = &wrqu->param;
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++ u16 rate;
++
++ acx_lock(adev, flags);
++ rate = adev->rate_oper;
++ if (adev->ap_client)
++ rate = adev->ap_client->rate_cur;
++ vwrq->value = acx111_rate_tbl[highest_bit(rate)];
++ vwrq->fixed = !adev->rate_auto;
++ vwrq->disabled = 0;
++ acx_unlock(adev, flags);
++
++ return OK;
++}
++
++static int
++acx_ioctl_set_rts(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_param *vwrq = &wrqu->rts;
++ acx_device_t *adev = ndev2adev(ndev);
++ int val = vwrq->value;
++
++ if (vwrq->disabled)
++ val = 2312;
++ if ((val < 0) || (val > 2312))
++ return -EINVAL;
++
++ adev->rts_threshold = val;
++ return OK;
++}
++
++static inline int
++acx_ioctl_get_rts(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_param *vwrq = &wrqu->rts;
++ acx_device_t *adev = ndev2adev(ndev);
++
++ vwrq->value = adev->rts_threshold;
++ vwrq->disabled = (vwrq->value >= 2312);
++ vwrq->fixed = 1;
++ return OK;
++}
++
++
++#if ACX_FRAGMENTATION
++static int
++acx_ioctl_set_frag(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ struct iw_param *vwrq,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int val = vwrq->value;
++
++ if (vwrq->disabled)
++ val = 32767;
++ else
++ if ((val < 256) || (val > 2347))
++ return -EINVAL;
++
++ adev->frag_threshold = val;
++ return OK;
++}
++
++static inline int
++acx_ioctl_get_frag(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_param *vwrq = &wrqu->frag;
++ acx_device_t *adev = ndev2adev(ndev);
++
++ vwrq->value = adev->frag_threshold;
++ vwrq->disabled = (vwrq->value >= 2347);
++ vwrq->fixed = 1;
++ return OK;
++}
++#endif
++
++
++/***********************************************************************
++** acx_ioctl_set_encode
++*/
++static int
++acx_ioctl_set_encode(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_point *dwrq = &wrqu->encoding;
++ acx_device_t *adev = ndev2adev(ndev);
++ int index;
++ int result;
++
++ FN_ENTER;
++
++ log(L_IOCTL, "set encoding flags=0x%04X, size=%d, key: %s\n",
++ dwrq->flags, dwrq->length, extra ? "set" : "No key");
++
++ acx_sem_lock(adev);
++
++ index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
++
++ if (dwrq->length > 0) {
++ /* if index is 0 or invalid, use default key */
++ if ((index < 0) || (index > 3))
++ index = (int)adev->wep_current_index;
++
++ if (0 == (dwrq->flags & IW_ENCODE_NOKEY)) {
++ if (dwrq->length > 29)
++ dwrq->length = 29; /* restrict it */
++
++ if (dwrq->length > 13) {
++ /* 29*8 == 232, WEP256 */
++ adev->wep_keys[index].size = 29;
++ } else if (dwrq->length > 5) {
++ /* 13*8 == 104bit, WEP128 */
++ adev->wep_keys[index].size = 13;
++ } else if (dwrq->length > 0) {
++ /* 5*8 == 40bit, WEP64 */
++ adev->wep_keys[index].size = 5;
++ } else {
++ /* disable key */
++ adev->wep_keys[index].size = 0;
++ }
++
++ memset(adev->wep_keys[index].key, 0,
++ sizeof(adev->wep_keys[index].key));
++ memcpy(adev->wep_keys[index].key, extra, dwrq->length);
++ }
++ } else {
++ /* set transmit key */
++ if ((index >= 0) && (index <= 3))
++ adev->wep_current_index = index;
++ else if (0 == (dwrq->flags & IW_ENCODE_MODE)) {
++ /* complain if we were not just setting
++ * the key mode */
++ result = -EINVAL;
++ goto end_unlock;
++ }
++ }
++
++ adev->wep_enabled = !(dwrq->flags & IW_ENCODE_DISABLED);
++
++ if (dwrq->flags & IW_ENCODE_OPEN) {
++ adev->auth_alg = WLAN_AUTH_ALG_OPENSYSTEM;
++ adev->wep_restricted = 0;
++
++ } else if (dwrq->flags & IW_ENCODE_RESTRICTED) {
++ adev->auth_alg = WLAN_AUTH_ALG_SHAREDKEY;
++ adev->wep_restricted = 1;
++ }
++
++ /* set flag to make sure the card WEP settings get updated */
++ SET_BIT(adev->set_mask, GETSET_WEP);
++
++ log(L_IOCTL, "len=%d, key at 0x%p, flags=0x%X\n",
++ dwrq->length, extra, dwrq->flags);
++
++ for (index = 0; index <= 3; index++) {
++ if (adev->wep_keys[index].size) {
++ log(L_IOCTL, "index=%d, size=%d, key at 0x%p\n",
++ adev->wep_keys[index].index,
++ (int) adev->wep_keys[index].size,
++ adev->wep_keys[index].key);
++ }
++ }
++ result = -EINPROGRESS;
++
++end_unlock:
++ acx_sem_unlock(adev);
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_ioctl_get_encode
++*/
++static int
++acx_ioctl_get_encode(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_point *dwrq = &wrqu->encoding;
++ acx_device_t *adev = ndev2adev(ndev);
++ int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
++
++ FN_ENTER;
++
++ if (adev->wep_enabled == 0) {
++ dwrq->flags = IW_ENCODE_DISABLED;
++ } else {
++ if ((index < 0) || (index > 3))
++ index = (int)adev->wep_current_index;
++
++ dwrq->flags = (adev->wep_restricted == 1) ?
++ IW_ENCODE_RESTRICTED : IW_ENCODE_OPEN;
++ dwrq->length = adev->wep_keys[index].size;
++
++ memcpy(extra, adev->wep_keys[index].key,
++ adev->wep_keys[index].size);
++ }
++
++ /* set the current index */
++ SET_BIT(dwrq->flags, index + 1);
++
++ log(L_IOCTL, "len=%d, key=%p, flags=0x%X\n",
++ dwrq->length, dwrq->pointer,
++ dwrq->flags);
++
++ FN_EXIT1(OK);
++ return OK;
++}
++
++
++/***********************************************************************
++*/
++static int
++acx_ioctl_set_power(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_param *vwrq = &wrqu->power;
++ acx_device_t *adev = ndev2adev(ndev);
++ int result = -EINPROGRESS;
++
++ FN_ENTER;
++
++ log(L_IOCTL, "set 802.11 powersave flags=0x%04X\n", vwrq->flags);
++
++ acx_sem_lock(adev);
++
++ if (vwrq->disabled) {
++ CLEAR_BIT(adev->ps_wakeup_cfg, PS_CFG_ENABLE);
++ SET_BIT(adev->set_mask, GETSET_POWER_80211);
++ goto end;
++ }
++ if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
++ u16 ps_timeout = (vwrq->value * 1024) / 1000;
++
++ if (ps_timeout > 255)
++ ps_timeout = 255;
++ log(L_IOCTL, "setting PS timeout value to %d time units "
++ "due to %dus\n", ps_timeout, vwrq->value);
++ adev->ps_hangover_period = ps_timeout;
++ } else if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_PERIOD) {
++ u16 ps_periods = vwrq->value / 1000000;
++
++ if (ps_periods > 255)
++ ps_periods = 255;
++ log(L_IOCTL, "setting PS period value to %d periods "
++ "due to %dus\n", ps_periods, vwrq->value);
++ adev->ps_listen_interval = ps_periods;
++ CLEAR_BIT(adev->ps_wakeup_cfg, PS_CFG_WAKEUP_MODE_MASK);
++ SET_BIT(adev->ps_wakeup_cfg, PS_CFG_WAKEUP_EACH_ITVL);
++ }
++
++ switch (vwrq->flags & IW_POWER_MODE) {
++ /* FIXME: are we doing the right thing here? */
++ case IW_POWER_UNICAST_R:
++ CLEAR_BIT(adev->ps_options, PS_OPT_STILL_RCV_BCASTS);
++ break;
++ case IW_POWER_MULTICAST_R:
++ SET_BIT(adev->ps_options, PS_OPT_STILL_RCV_BCASTS);
++ break;
++ case IW_POWER_ALL_R:
++ SET_BIT(adev->ps_options, PS_OPT_STILL_RCV_BCASTS);
++ break;
++ case IW_POWER_ON:
++ break;
++ default:
++ log(L_IOCTL, "unknown PS mode\n");
++ result = -EINVAL;
++ goto end;
++ }
++
++ SET_BIT(adev->ps_wakeup_cfg, PS_CFG_ENABLE);
++ SET_BIT(adev->set_mask, GETSET_POWER_80211);
++end:
++ acx_sem_unlock(adev);
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++*/
++static int
++acx_ioctl_get_power(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_param *vwrq = &wrqu->power;
++ acx_device_t *adev = ndev2adev(ndev);
++
++ FN_ENTER;
++
++ log(L_IOCTL, "Get 802.11 Power Save flags = 0x%04X\n", vwrq->flags);
++ vwrq->disabled = ((adev->ps_wakeup_cfg & PS_CFG_ENABLE) == 0);
++ if (vwrq->disabled)
++ goto end;
++
++ if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
++ vwrq->value = adev->ps_hangover_period * 1000 / 1024;
++ vwrq->flags = IW_POWER_TIMEOUT;
++ } else {
++ vwrq->value = adev->ps_listen_interval * 1000000;
++ vwrq->flags = IW_POWER_PERIOD|IW_POWER_RELATIVE;
++ }
++ if (adev->ps_options & PS_OPT_STILL_RCV_BCASTS)
++ SET_BIT(vwrq->flags, IW_POWER_ALL_R);
++ else
++ SET_BIT(vwrq->flags, IW_POWER_UNICAST_R);
++end:
++ FN_EXIT1(OK);
++ return OK;
++}
++
++
++/***********************************************************************
++** acx_ioctl_get_txpow
++*/
++static inline int
++acx_ioctl_get_txpow(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_param *vwrq = &wrqu->power;
++ acx_device_t *adev = ndev2adev(ndev);
++
++ FN_ENTER;
++
++ vwrq->flags = IW_TXPOW_DBM;
++ vwrq->disabled = 0;
++ vwrq->fixed = 1;
++ vwrq->value = adev->tx_level_dbm;
++
++ log(L_IOCTL, "get txpower:%d dBm\n", adev->tx_level_dbm);
++
++ FN_EXIT1(OK);
++ return OK;
++}
++
++
++/***********************************************************************
++** acx_ioctl_set_txpow
++*/
++static int
++acx_ioctl_set_txpow(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_param *vwrq = &wrqu->power;
++ acx_device_t *adev = ndev2adev(ndev);
++ int result;
++
++ FN_ENTER;
++
++ log(L_IOCTL, "set txpower:%d, disabled:%d, flags:0x%04X\n",
++ vwrq->value, vwrq->disabled, vwrq->flags);
++
++ acx_sem_lock(adev);
++
++ if (vwrq->disabled != adev->tx_disabled) {
++ SET_BIT(adev->set_mask, GETSET_TX);
++ }
++
++ adev->tx_disabled = vwrq->disabled;
++ if (vwrq->value == -1) {
++ if (vwrq->disabled) {
++ adev->tx_level_dbm = 0;
++ log(L_IOCTL, "disable radio tx\n");
++ } else {
++ /* adev->tx_level_auto = 1; */
++ log(L_IOCTL, "set tx power auto (NIY)\n");
++ }
++ } else {
++ adev->tx_level_dbm = vwrq->value <= 20 ? vwrq->value : 20;
++ /* adev->tx_level_auto = 0; */
++ log(L_IOCTL, "set txpower=%d dBm\n", adev->tx_level_dbm);
++ }
++ SET_BIT(adev->set_mask, GETSET_TXPOWER);
++
++ result = -EINPROGRESS;
++
++ acx_sem_unlock(adev);
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_ioctl_get_range
++*/
++static int
++acx_ioctl_get_range(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_point *dwrq = &wrqu->data;
++ struct iw_range *range = (struct iw_range *)extra;
++ acx_device_t *adev = ndev2adev(ndev);
++ int i,n;
++
++ FN_ENTER;
++
++ if (!dwrq->pointer)
++ goto end;
++
++ dwrq->length = sizeof(struct iw_range);
++ memset(range, 0, sizeof(struct iw_range));
++ n = 0;
++ for (i = 1; i <= 14; i++) {
++ if (adev->reg_dom_chanmask & (1 << (i - 1))) {
++ range->freq[n].i = i;
++ range->freq[n].m = acx_channel_freq[i - 1] * 100000;
++ range->freq[n].e = 1; /* units are MHz */
++ n++;
++ }
++ }
++ range->num_channels = n;
++ range->num_frequency = n;
++
++ range->min_rts = 0;
++ range->max_rts = 2312;
++
++#if ACX_FRAGMENTATION
++ range->min_frag = 256;
++ range->max_frag = 2312;
++#endif
++
++ range->encoding_size[0] = 5;
++ range->encoding_size[1] = 13;
++ range->encoding_size[2] = 29;
++ range->num_encoding_sizes = 3;
++ range->max_encoding_tokens = 4;
++
++ range->min_pmp = 0;
++ range->max_pmp = 5000000;
++ range->min_pmt = 0;
++ range->max_pmt = 65535 * 1000;
++ range->pmp_flags = IW_POWER_PERIOD;
++ range->pmt_flags = IW_POWER_TIMEOUT;
++ range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R;
++
++ if (IS_ACX100(adev)) { /* ACX100 has direct radio programming - arbitrary levels, so offer a lot */
++ for (i = 0; i <= IW_MAX_TXPOWER - 1; i++)
++ range->txpower[i] = 20 * i / (IW_MAX_TXPOWER - 1);
++ range->num_txpower = IW_MAX_TXPOWER;
++ range->txpower_capa = IW_TXPOW_DBM;
++ }
++ else {
++ int count = min(IW_MAX_TXPOWER, (int)adev->cfgopt_power_levels.len);
++ for (i = 0; i <= count; i++)
++ range->txpower[i] = adev->cfgopt_power_levels.list[i];
++ range->num_txpower = count;
++ /* this list is given in mW */
++ range->txpower_capa = IW_TXPOW_MWATT;
++ }
++
++ range->we_version_compiled = WIRELESS_EXT;
++ range->we_version_source = 0x9;
++
++ range->retry_capa = IW_RETRY_LIMIT;
++ range->retry_flags = IW_RETRY_LIMIT;
++ range->min_retry = 1;
++ range->max_retry = 255;
++
++ range->r_time_flags = IW_RETRY_LIFETIME;
++ range->min_r_time = 0;
++ /* FIXME: lifetime ranges and orders of magnitude are strange?? */
++ range->max_r_time = 65535;
++
++ if (IS_USB(adev))
++ range->sensitivity = 0;
++ else if (IS_ACX111(adev))
++ range->sensitivity = 3;
++ else
++ range->sensitivity = 255;
++
++ for (i=0; i < adev->rate_supported_len; i++) {
++ range->bitrate[i] = (adev->rate_supported[i] & ~0x80) * 500000;
++ /* never happens, but keep it, to be safe: */
++ if (range->bitrate[i] == 0)
++ break;
++ }
++ range->num_bitrates = i;
++
++ range->max_qual.qual = 100;
++ range->max_qual.level = 100;
++ range->max_qual.noise = 100;
++ /* TODO: better values */
++ range->avg_qual.qual = 90;
++ range->avg_qual.level = 80;
++ range->avg_qual.noise = 2;
++
++end:
++ FN_EXIT1(OK);
++ return OK;
++}
++
++
++/***********************************************************************
++** Private functions
++*/
++
++/***********************************************************************
++** acx_ioctl_get_nick
++*/
++static inline int
++acx_ioctl_get_nick(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_point *dwrq = &wrqu->data;
++ acx_device_t *adev = ndev2adev(ndev);
++
++ strcpy(extra, adev->nick);
++ dwrq->length = strlen(extra) + 1;
++
++ return OK;
++}
++
++
++/***********************************************************************
++** acx_ioctl_set_nick
++*/
++static int
++acx_ioctl_set_nick(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_point *dwrq = &wrqu->data;
++ acx_device_t *adev = ndev2adev(ndev);
++ int result;
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++
++ if (dwrq->length > IW_ESSID_MAX_SIZE + 1) {
++ result = -E2BIG;
++ goto end_unlock;
++ }
++
++ /* extra includes trailing \0, so it's ok */
++ strcpy(adev->nick, extra);
++ result = OK;
++
++end_unlock:
++ acx_sem_unlock(adev);
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_ioctl_get_retry
++*/
++static int
++acx_ioctl_get_retry(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_param *vwrq = &wrqu->retry;
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned int type = vwrq->flags & IW_RETRY_TYPE;
++ unsigned int modifier = vwrq->flags & IW_RETRY_MODIFIER;
++ int result;
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++
++ /* return the short retry number by default */
++ if (type == IW_RETRY_LIFETIME) {
++ vwrq->flags = IW_RETRY_LIFETIME;
++ vwrq->value = adev->msdu_lifetime;
++ } else if (modifier == IW_RETRY_MAX) {
++ vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
++ vwrq->value = adev->long_retry;
++ } else {
++ vwrq->flags = IW_RETRY_LIMIT;
++ if (adev->long_retry != adev->short_retry)
++ SET_BIT(vwrq->flags, IW_RETRY_MIN);
++ vwrq->value = adev->short_retry;
++ }
++
++ /* can't be disabled */
++ vwrq->disabled = (u8)0;
++ result = OK;
++
++ acx_sem_unlock(adev);
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_ioctl_set_retry
++*/
++static int
++acx_ioctl_set_retry(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_param *vwrq = &wrqu->retry;
++ acx_device_t *adev = ndev2adev(ndev);
++ int result;
++
++ FN_ENTER;
++
++ if (!vwrq) {
++ result = -EFAULT;
++ goto end;
++ }
++ if (vwrq->disabled) {
++ result = -EINVAL;
++ goto end;
++ }
++
++ acx_sem_lock(adev);
++
++ result = -EINVAL;
++ if (IW_RETRY_LIMIT == (vwrq->flags & IW_RETRY_TYPE)) {
++ printk("old retry limits: short %d long %d\n",
++ adev->short_retry, adev->long_retry);
++ if (vwrq->flags & IW_RETRY_MAX) {
++ adev->long_retry = vwrq->value;
++ } else if (vwrq->flags & IW_RETRY_MIN) {
++ adev->short_retry = vwrq->value;
++ } else {
++ /* no modifier: set both */
++ adev->long_retry = vwrq->value;
++ adev->short_retry = vwrq->value;
++ }
++ printk("new retry limits: short %d long %d\n",
++ adev->short_retry, adev->long_retry);
++ SET_BIT(adev->set_mask, GETSET_RETRY);
++ result = -EINPROGRESS;
++ }
++ else if (vwrq->flags & IW_RETRY_LIFETIME) {
++ adev->msdu_lifetime = vwrq->value;
++ printk("new MSDU lifetime: %d\n", adev->msdu_lifetime);
++ SET_BIT(adev->set_mask, SET_MSDU_LIFETIME);
++ result = -EINPROGRESS;
++ }
++
++ acx_sem_unlock(adev);
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/************************ private ioctls ******************************/
++
++
++/***********************************************************************
++** acx_ioctl_set_debug
++*/
++#if ACX_DEBUG
++static int
++acx_ioctl_set_debug(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ unsigned int debug_new = *((unsigned int *)extra);
++ int result = -EINVAL;
++
++ log(L_ANY, "setting debug from %04X to %04X\n", acx_debug, debug_new);
++ acx_debug = debug_new;
++
++ result = OK;
++ return result;
++
++}
++#endif
++
++
++/***********************************************************************
++** acx_ioctl_list_reg_domain
++*/
++static int
++acx_ioctl_list_reg_domain(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ int i = 1;
++ const char * const *entry = acx_reg_domain_strings;
++
++ printk("dom# chan# domain/country\n");
++ while (*entry)
++ printk("%4d %s\n", i++, *entry++);
++ return OK;
++}
++
++
++/***********************************************************************
++** acx_ioctl_set_reg_domain
++*/
++static int
++acx_ioctl_set_reg_domain(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int result;
++
++ FN_ENTER;
++
++ if ((*extra < 1) || ((size_t)*extra > acx_reg_domain_ids_len)) {
++ result = -EINVAL;
++ goto end;
++ }
++
++ acx_sem_lock(adev);
++
++ adev->reg_dom_id = acx_reg_domain_ids[*extra - 1];
++ SET_BIT(adev->set_mask, GETSET_REG_DOMAIN);
++
++ result = -EINPROGRESS;
++
++ acx_sem_unlock(adev);
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_ioctl_get_reg_domain
++*/
++static int
++acx_ioctl_get_reg_domain(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int dom,i;
++
++ /* no locking */
++ dom = adev->reg_dom_id;
++
++ for (i = 1; i <= acx_reg_domain_ids_len; i++) {
++ if (acx_reg_domain_ids[i-1] == dom) {
++ log(L_IOCTL, "regulatory domain is currently set "
++ "to %d (0x%X): %s\n", i, dom,
++ acx_reg_domain_strings[i-1]);
++ *extra = i;
++ break;
++ }
++ }
++
++ return OK;
++}
++
++
++/***********************************************************************
++** acx_ioctl_set_short_preamble
++*/
++static const char * const
++preamble_modes[] = {
++ "off",
++ "on",
++ "auto (peer capability dependent)",
++ "unknown mode, error"
++};
++
++static int
++acx_ioctl_set_short_preamble(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int i;
++ int result;
++
++ FN_ENTER;
++
++ if ((unsigned char)*extra > 2) {
++ result = -EINVAL;
++ goto end;
++ }
++
++ acx_sem_lock(adev);
++
++ adev->preamble_mode = (u8)*extra;
++ switch (adev->preamble_mode) {
++ case 0: /* long */
++ adev->preamble_cur = 0;
++ break;
++ case 1:
++ /* short, kick incapable peers */
++ adev->preamble_cur = 1;
++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
++ client_t *clt = &adev->sta_list[i];
++ if (!clt->used) continue;
++ if (!(clt->cap_info & WF_MGMT_CAP_SHORT)) {
++ clt->used = CLIENT_EMPTY_SLOT_0;
++ }
++ }
++ switch (adev->mode) {
++ case ACX_MODE_2_STA:
++ if (adev->ap_client && !adev->ap_client->used) {
++ /* We kicked our AP :) */
++ SET_BIT(adev->set_mask, GETSET_RESCAN);
++ }
++ }
++ break;
++ case 2: /* auto. short only if all peers are short-capable */
++ adev->preamble_cur = 1;
++ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
++ client_t *clt = &adev->sta_list[i];
++ if (!clt->used) continue;
++ if (!(clt->cap_info & WF_MGMT_CAP_SHORT)) {
++ adev->preamble_cur = 0;
++ break;
++ }
++ }
++ break;
++ }
++ printk("new short preamble setting: configured %s, active %s\n",
++ preamble_modes[adev->preamble_mode],
++ preamble_modes[adev->preamble_cur]);
++ result = OK;
++
++ acx_sem_unlock(adev);
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_ioctl_get_short_preamble
++*/
++static int
++acx_ioctl_get_short_preamble(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++
++ acx_sem_lock(adev);
++
++ printk("current short preamble setting: configured %s, active %s\n",
++ preamble_modes[adev->preamble_mode],
++ preamble_modes[adev->preamble_cur]);
++
++ *extra = (char)adev->preamble_mode;
++
++ acx_sem_unlock(adev);
++
++ return OK;
++}
++
++
++/***********************************************************************
++** acx_ioctl_set_antenna
++**
++** TX and RX antenna can be set separately but this function good
++** for testing 0-4 bits
++*/
++static int
++acx_ioctl_set_antenna(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++
++ acx_sem_lock(adev);
++
++ printk("old antenna value: 0x%02X (COMBINED bit mask)\n"
++ "Rx antenna selection:\n"
++ "0x00 ant. 1\n"
++ "0x40 ant. 2\n"
++ "0x80 full diversity\n"
++ "0xc0 partial diversity\n"
++ "0x0f dwell time mask (in units of us)\n"
++ "Tx antenna selection:\n"
++ "0x00 ant. 2\n" /* yep, those ARE reversed! */
++ "0x20 ant. 1\n"
++ "new antenna value: 0x%02X\n",
++ adev->antenna, (u8)*extra);
++
++ adev->antenna = (u8)*extra;
++ SET_BIT(adev->set_mask, GETSET_ANTENNA);
++
++ acx_sem_unlock(adev);
++
++ return -EINPROGRESS;
++}
++
++
++/***********************************************************************
++** acx_ioctl_get_antenna
++*/
++static int
++acx_ioctl_get_antenna(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++
++ /* no locking. it's pointless to lock a single load */
++ printk("current antenna value: 0x%02X (COMBINED bit mask)\n"
++ "Rx antenna selection:\n"
++ "0x00 ant. 1\n"
++ "0x40 ant. 2\n"
++ "0x80 full diversity\n"
++ "0xc0 partial diversity\n"
++ "Tx antenna selection:\n"
++ "0x00 ant. 2\n" /* yep, those ARE reversed! */
++ "0x20 ant. 1\n", adev->antenna);
++
++ return 0;
++}
++
++
++/***********************************************************************
++** acx_ioctl_set_rx_antenna
++**
++** 0 = antenna1; 1 = antenna2; 2 = full diversity; 3 = partial diversity
++** Could anybody test which antenna is the external one?
++*/
++static int
++acx_ioctl_set_rx_antenna(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int result;
++
++ FN_ENTER;
++
++ if (*extra > 3) {
++ result = -EINVAL;
++ goto end;
++ }
++
++ printk("old antenna value: 0x%02X\n", adev->antenna);
++
++ acx_sem_lock(adev);
++
++ adev->antenna &= 0x3f;
++ SET_BIT(adev->antenna, (*extra << 6));
++ SET_BIT(adev->set_mask, GETSET_ANTENNA);
++ printk("new antenna value: 0x%02X\n", adev->antenna);
++ result = -EINPROGRESS;
++
++ acx_sem_unlock(adev);
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_ioctl_set_tx_antenna
++**
++** Arguments: 0 == antenna2; 1 == antenna1;
++** Could anybody test which antenna is the external one?
++*/
++static int
++acx_ioctl_set_tx_antenna(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int result;
++
++ FN_ENTER;
++
++ if (*extra > 1) {
++ result = -EINVAL;
++ goto end;
++ }
++
++ printk("old antenna value: 0x%02X\n", adev->antenna);
++
++ acx_sem_lock(adev);
++
++ adev->antenna &= ~0x30;
++ SET_BIT(adev->antenna, ((*extra & 0x01) << 5));
++ SET_BIT(adev->set_mask, GETSET_ANTENNA);
++ printk("new antenna value: 0x%02X\n", adev->antenna);
++ result = -EINPROGRESS;
++
++ acx_sem_unlock(adev);
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_ioctl_wlansniff
++**
++** can we just remove this in favor of monitor mode? --vda
++*/
++static int
++acx_ioctl_wlansniff(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned int *params = (unsigned int*)extra;
++ unsigned int enable = (unsigned int)(params[0] > 0);
++ int result;
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++
++ /* not using printk() here, since it distorts kismet display
++ * when printk messages activated */
++ log(L_IOCTL, "setting monitor to: 0x%02X\n", params[0]);
++
++ switch (params[0]) {
++ case 0:
++ /* no monitor mode. hmm, should we simply ignore it
++ * or go back to enabling adev->netdev->type ARPHRD_ETHER? */
++ break;
++ case 1:
++ adev->monitor_type = ARPHRD_IEEE80211_PRISM;
++ break;
++ case 2:
++ adev->monitor_type = ARPHRD_IEEE80211;
++ break;
++ }
++
++ if (params[0]) {
++ adev->mode = ACX_MODE_MONITOR;
++ SET_BIT(adev->set_mask, GETSET_MODE);
++ }
++
++ if (enable) {
++ adev->channel = params[1];
++ SET_BIT(adev->set_mask, GETSET_RX);
++ }
++ result = -EINPROGRESS;
++
++ acx_sem_unlock(adev);
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_ioctl_unknown11
++** FIXME: looks like some sort of "iwpriv kick_sta MAC" but it's broken
++*/
++static int
++acx_ioctl_unknown11(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++#ifdef BROKEN
++ struct iw_param *vwrq = &wrqu->param;
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++ client_t client;
++ int result;
++
++ acx_sem_lock(adev);
++ acx_lock(adev, flags);
++
++ acx_l_transmit_disassoc(adev, &client);
++ result = OK;
++
++ acx_unlock(adev, flags);
++ acx_sem_unlock(adev);
++
++ return result;
++#endif
++ return -EINVAL;
++}
++
++
++/***********************************************************************
++** debug helper function to be able to debug various issues relatively easily
++*/
++static int
++acx_ioctl_dbg_set_masks(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ const unsigned int *params = (unsigned int*)extra;
++ int result;
++
++ acx_sem_lock(adev);
++
++ log(L_IOCTL, "setting flags in settings mask: "
++ "get_mask %08X set_mask %08X\n"
++ "before: get_mask %08X set_mask %08X\n",
++ params[0], params[1],
++ adev->get_mask, adev->set_mask);
++ SET_BIT(adev->get_mask, params[0]);
++ SET_BIT(adev->set_mask, params[1]);
++ log(L_IOCTL, "after: get_mask %08X set_mask %08X\n",
++ adev->get_mask, adev->set_mask);
++ result = -EINPROGRESS; /* immediately call commit handler */
++
++ acx_sem_unlock(adev);
++
++ return result;
++}
++
++
++/***********************************************************************
++* acx_ioctl_set_rates
++*
++* This ioctl takes string parameter. Examples:
++* iwpriv wlan0 SetRates "1,2"
++* use 1 and 2 Mbit rates, both are in basic rate set
++* iwpriv wlan0 SetRates "1,2 5,11"
++* use 1,2,5.5,11 Mbit rates. 1 and 2 are basic
++* iwpriv wlan0 SetRates "1,2 5c,11c"
++* same ('c' means 'CCK modulation' and it is a default for 5 and 11)
++* iwpriv wlan0 SetRates "1,2 5p,11p"
++* use 1,2,5.5,11 Mbit, 1,2 are basic. 5 and 11 are using PBCC
++* iwpriv wlan0 SetRates "1,2,5,11 22p"
++* use 1,2,5.5,11,22 Mbit. 1,2,5.5 and 11 are basic. 22 is using PBCC
++* (this is the maximum acx100 can do (modulo x4 mode))
++* iwpriv wlan0 SetRates "1,2,5,11 22"
++* same. 802.11 defines only PBCC modulation
++* for 22 and 33 Mbit rates, so there is no ambiguity
++* iwpriv wlan0 SetRates "1,2,5,11 6o,9o,12o,18o,24o,36o,48o,54o"
++* 1,2,5.5 and 11 are basic. 11g OFDM rates are enabled but
++* they are not in basic rate set. 22 Mbit is disabled.
++* iwpriv wlan0 SetRates "1,2,5,11 6,9,12,18,24,36,48,54"
++* same. OFDM is default for 11g rates except 22 and 33 Mbit,
++* thus 'o' is optional
++* iwpriv wlan0 SetRates "1,2,5,11 6d,9d,12d,18d,24d,36d,48d,54d"
++* 1,2,5.5 and 11 are basic. 11g CCK-OFDM rates are enabled
++* (acx111 does not support CCK-OFDM, driver will reject this cmd)
++* iwpriv wlan0 SetRates "6,9,12 18,24,36,48,54"
++* 6,9,12 are basic, rest of 11g rates is enabled. Using OFDM
++*/
++#include "setrate.c"
++
++/* disallow: 33Mbit (unsupported by hw) */
++/* disallow: CCKOFDM (unsupported by hw) */
++static int
++acx111_supported(int mbit, int modulation, void *opaque)
++{
++ if (mbit==33) return -ENOTSUPP;
++ if (modulation==DOT11_MOD_CCKOFDM) return -ENOTSUPP;
++ return OK;
++}
++
++static const u16
++acx111mask[] = {
++ [DOT11_RATE_1 ] = RATE111_1 ,
++ [DOT11_RATE_2 ] = RATE111_2 ,
++ [DOT11_RATE_5 ] = RATE111_5 ,
++ [DOT11_RATE_11] = RATE111_11,
++ [DOT11_RATE_22] = RATE111_22,
++ /* [DOT11_RATE_33] = */
++ [DOT11_RATE_6 ] = RATE111_6 ,
++ [DOT11_RATE_9 ] = RATE111_9 ,
++ [DOT11_RATE_12] = RATE111_12,
++ [DOT11_RATE_18] = RATE111_18,
++ [DOT11_RATE_24] = RATE111_24,
++ [DOT11_RATE_36] = RATE111_36,
++ [DOT11_RATE_48] = RATE111_48,
++ [DOT11_RATE_54] = RATE111_54,
++};
++
++static u32
++acx111_gen_mask(int mbit, int modulation, void *opaque)
++{
++ /* lower 16 bits show selected 1, 2, CCK and OFDM rates */
++ /* upper 16 bits show selected PBCC rates */
++ u32 m = acx111mask[rate_mbit2enum(mbit)];
++ if (modulation==DOT11_MOD_PBCC)
++ return m<<16;
++ return m;
++}
++
++static int
++verify_rate(u32 rate, int chip_type)
++{
++ /* never happens. be paranoid */
++ if (!rate) return -EINVAL;
++
++ /* disallow: mixing PBCC and CCK at 5 and 11Mbit
++ ** (can be supported, but needs complicated handling in tx code) */
++ if (( rate & ((RATE111_11+RATE111_5)<<16) )
++ && ( rate & (RATE111_11+RATE111_5) )
++ ) {
++ return -ENOTSUPP;
++ }
++ if (CHIPTYPE_ACX100 == chip_type) {
++ if ( rate & ~(RATE111_ACX100_COMPAT+(RATE111_ACX100_COMPAT<<16)) )
++ return -ENOTSUPP;
++ }
++ return 0;
++}
++
++static int
++acx_ioctl_set_rates(struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++ int result;
++ u32 brate = 0, orate = 0; /* basic, operational rate set */
++
++ FN_ENTER;
++
++ log(L_IOCTL, "set_rates %s\n", extra);
++ result = fill_ratemasks(extra, &brate, &orate,
++ acx111_supported, acx111_gen_mask, 0);
++ if (result) goto end;
++ SET_BIT(orate, brate);
++ log(L_IOCTL, "brate %08X orate %08X\n", brate, orate);
++
++ result = verify_rate(brate, adev->chip_type);
++ if (result) goto end;
++ result = verify_rate(orate, adev->chip_type);
++ if (result) goto end;
++
++ acx_sem_lock(adev);
++ acx_lock(adev, flags);
++
++ adev->rate_basic = brate;
++ adev->rate_oper = orate;
++ /* TODO: ideally, we shall monitor highest basic rate
++ ** which was successfully sent to every peer
++ ** (say, last we checked, everybody could hear 5.5 Mbits)
++ ** and use that for bcasts when we want to reach all peers.
++ ** For beacons, we probably shall use lowest basic rate
++ ** because we want to reach all *potential* new peers too */
++ adev->rate_bcast = 1 << lowest_bit(brate);
++ if (IS_ACX100(adev))
++ adev->rate_bcast100 = acx_rate111to100(adev->rate_bcast);
++ adev->rate_auto = !has_only_one_bit(orate);
++ acx_l_update_client_rates(adev, orate);
++ /* TODO: get rid of ratevector, build it only when needed */
++ acx_l_update_ratevector(adev);
++
++ /* Do/don't do tx rate fallback; beacon contents and rate */
++ SET_BIT(adev->set_mask, SET_RATE_FALLBACK|SET_TEMPLATES);
++ result = -EINPROGRESS;
++
++ acx_unlock(adev, flags);
++ acx_sem_unlock(adev);
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acx_ioctl_get_phy_chan_busy_percentage
++*/
++static int
++acx_ioctl_get_phy_chan_busy_percentage(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ struct {
++ u16 type;
++ u16 len;
++ u32 busytime;
++ u32 totaltime;
++ } ACX_PACKED usage;
++ int result;
++
++ acx_sem_lock(adev);
++
++ if (OK != acx_s_interrogate(adev, &usage, ACX1xx_IE_MEDIUM_USAGE)) {
++ result = NOT_OK;
++ goto end_unlock;
++ }
++
++ usage.busytime = le32_to_cpu(usage.busytime);
++ usage.totaltime = le32_to_cpu(usage.totaltime);
++
++ /* yes, this is supposed to be "Medium" (singular of media),
++ not "average"! OK, reword the message to make it obvious... */
++ printk("%s: busy percentage of medium (since last invocation): %d%% "
++ "(%u of %u microseconds)\n",
++ ndev->name,
++ usage.busytime / ((usage.totaltime / 100) + 1),
++ usage.busytime, usage.totaltime);
++
++ result = OK;
++
++end_unlock:
++ acx_sem_unlock(adev);
++
++ return result;
++}
++
++
++/***********************************************************************
++** acx_ioctl_set_ed_threshold
++*/
++static inline int
++acx_ioctl_set_ed_threshold(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++
++ acx_sem_lock(adev);
++
++ printk("old ED threshold value: %d\n", adev->ed_threshold);
++ adev->ed_threshold = (unsigned char)*extra;
++ printk("new ED threshold value: %d\n", (unsigned char)*extra);
++ SET_BIT(adev->set_mask, GETSET_ED_THRESH);
++
++ acx_sem_unlock(adev);
++
++ return -EINPROGRESS;
++}
++
++
++/***********************************************************************
++** acx_ioctl_set_cca
++*/
++static inline int
++acx_ioctl_set_cca(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int result;
++
++ acx_sem_lock(adev);
++
++ printk("old CCA value: 0x%02X\n", adev->cca);
++ adev->cca = (unsigned char)*extra;
++ printk("new CCA value: 0x%02X\n", (unsigned char)*extra);
++ SET_BIT(adev->set_mask, GETSET_CCA);
++ result = -EINPROGRESS;
++
++ acx_sem_unlock(adev);
++
++ return result;
++}
++
++
++/***********************************************************************
++*/
++static const char * const
++scan_modes[] = { "active", "passive", "background" };
++
++static void
++acx_print_scan_params(acx_device_t *adev, const char* head)
++{
++ printk("%s: %smode %d (%s), min chan time %dTU, "
++ "max chan time %dTU, max scan rate byte: %d\n",
++ adev->ndev->name, head,
++ adev->scan_mode, scan_modes[adev->scan_mode],
++ adev->scan_probe_delay, adev->scan_duration, adev->scan_rate);
++}
++
++static int
++acx_ioctl_set_scan_params(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int result;
++ const int *params = (int *)extra;
++
++ acx_sem_lock(adev);
++
++ acx_print_scan_params(adev, "old scan parameters: ");
++ if ((params[0] != -1) && (params[0] >= 0) && (params[0] <= 2))
++ adev->scan_mode = params[0];
++ if (params[1] != -1)
++ adev->scan_probe_delay = params[1];
++ if (params[2] != -1)
++ adev->scan_duration = params[2];
++ if ((params[3] != -1) && (params[3] <= 255))
++ adev->scan_rate = params[3];
++ acx_print_scan_params(adev, "new scan parameters: ");
++ SET_BIT(adev->set_mask, GETSET_RESCAN);
++ result = -EINPROGRESS;
++
++ acx_sem_unlock(adev);
++
++ return result;
++}
++
++static int
++acx_ioctl_get_scan_params(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int result;
++ int *params = (int *)extra;
++
++ acx_sem_lock(adev);
++
++ acx_print_scan_params(adev, "current scan parameters: ");
++ params[0] = adev->scan_mode;
++ params[1] = adev->scan_probe_delay;
++ params[2] = adev->scan_duration;
++ params[3] = adev->scan_rate;
++ result = OK;
++
++ acx_sem_unlock(adev);
++
++ return result;
++}
++
++
++/***********************************************************************
++*/
++static int
++acx100_ioctl_set_led_power(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ static const char * const led_modes[] = { "off", "on", "LinkQuality" };
++
++ acx_device_t *adev = ndev2adev(ndev);
++ int result;
++
++ acx_sem_lock(adev);
++
++ printk("%s: power LED status: old %d (%s), ",
++ ndev->name,
++ adev->led_power,
++ led_modes[adev->led_power]);
++ adev->led_power = extra[0];
++ if (adev->led_power > 2) adev->led_power = 2;
++ printk("new %d (%s)\n",
++ adev->led_power,
++ led_modes[adev->led_power]);
++
++ if (adev->led_power == 2) {
++ printk("%s: max link quality setting: old %d, ",
++ ndev->name, adev->brange_max_quality);
++ if (extra[1])
++ adev->brange_max_quality = extra[1];
++ printk("new %d\n", adev->brange_max_quality);
++ }
++
++ SET_BIT(adev->set_mask, GETSET_LED_POWER);
++
++ result = -EINPROGRESS;
++
++ acx_sem_unlock(adev);
++
++ return result;
++}
++
++
++/***********************************************************************
++*/
++static inline int
++acx100_ioctl_get_led_power(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++
++ acx_sem_lock(adev);
++
++ extra[0] = adev->led_power;
++ if (adev->led_power == 2)
++ extra[1] = adev->brange_max_quality;
++ else
++ extra[1] = -1;
++
++ acx_sem_unlock(adev);
++
++ return OK;
++}
++
++
++/***********************************************************************
++*/
++static int
++acx111_ioctl_info(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_param *vwrq = &wrqu->param;
++ if (!IS_PCI(ndev2adev(ndev)))
++ return OK;
++ return acx111pci_ioctl_info(ndev, info, vwrq, extra);
++}
++
++
++/***********************************************************************
++*/
++static int
++acx100_ioctl_set_phy_amp_bias(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ union iwreq_data *wrqu,
++ char *extra)
++{
++ struct iw_param *vwrq = &wrqu->param;
++ if (IS_USB(ndev2adev(ndev))) {
++ printk("acx: set_phy_amp_bias() is not supported on USB\n");
++ return OK;
++ }
++#ifdef ACX_MEM
++ return acx100mem_ioctl_set_phy_amp_bias(ndev, info, vwrq, extra);
++#else
++ return acx100pci_ioctl_set_phy_amp_bias(ndev, info, vwrq, extra);
++#endif
++}
++
++
++/***********************************************************************
++*/
++static const iw_handler acx_ioctl_handler[] =
++{
++ acx_ioctl_commit, /* SIOCSIWCOMMIT */
++ acx_ioctl_get_name, /* SIOCGIWNAME */
++ NULL, /* SIOCSIWNWID */
++ NULL, /* SIOCGIWNWID */
++ acx_ioctl_set_freq, /* SIOCSIWFREQ */
++ acx_ioctl_get_freq, /* SIOCGIWFREQ */
++ acx_ioctl_set_mode, /* SIOCSIWMODE */
++ acx_ioctl_get_mode, /* SIOCGIWMODE */
++ acx_ioctl_set_sens, /* SIOCSIWSENS */
++ acx_ioctl_get_sens, /* SIOCGIWSENS */
++ NULL, /* SIOCSIWRANGE */
++ acx_ioctl_get_range, /* SIOCGIWRANGE */
++ NULL, /* SIOCSIWPRIV */
++ NULL, /* SIOCGIWPRIV */
++ NULL, /* SIOCSIWSTATS */
++ NULL, /* SIOCGIWSTATS */
++#if IW_HANDLER_VERSION > 4
++ iw_handler_set_spy, /* SIOCSIWSPY */
++ iw_handler_get_spy, /* SIOCGIWSPY */
++ iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
++ iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
++#else /* IW_HANDLER_VERSION > 4 */
++#ifdef WIRELESS_SPY
++ NULL /* acx_ioctl_set_spy FIXME */, /* SIOCSIWSPY */
++ NULL /* acx_ioctl_get_spy */, /* SIOCGIWSPY */
++#else /* WSPY */
++ NULL, /* SIOCSIWSPY */
++ NULL, /* SIOCGIWSPY */
++#endif /* WSPY */
++ NULL, /* [nothing] */
++ NULL, /* [nothing] */
++#endif /* IW_HANDLER_VERSION > 4 */
++ acx_ioctl_set_ap, /* SIOCSIWAP */
++ acx_ioctl_get_ap, /* SIOCGIWAP */
++ NULL, /* [nothing] */
++ acx_ioctl_get_aplist, /* SIOCGIWAPLIST */
++ acx_ioctl_set_scan, /* SIOCSIWSCAN */
++ acx_ioctl_get_scan, /* SIOCGIWSCAN */
++ acx_ioctl_set_essid, /* SIOCSIWESSID */
++ acx_ioctl_get_essid, /* SIOCGIWESSID */
++ acx_ioctl_set_nick, /* SIOCSIWNICKN */
++ acx_ioctl_get_nick, /* SIOCGIWNICKN */
++ NULL, /* [nothing] */
++ NULL, /* [nothing] */
++ acx_ioctl_set_rate, /* SIOCSIWRATE */
++ acx_ioctl_get_rate, /* SIOCGIWRATE */
++ acx_ioctl_set_rts, /* SIOCSIWRTS */
++ acx_ioctl_get_rts, /* SIOCGIWRTS */
++#if ACX_FRAGMENTATION
++ acx_ioctl_set_frag, /* SIOCSIWFRAG */
++ acx_ioctl_get_frag, /* SIOCGIWFRAG */
++#else
++ NULL, /* SIOCSIWFRAG */
++ NULL, /* SIOCGIWFRAG */
++#endif
++ acx_ioctl_set_txpow, /* SIOCSIWTXPOW */
++ acx_ioctl_get_txpow, /* SIOCGIWTXPOW */
++ acx_ioctl_set_retry, /* SIOCSIWRETRY */
++ acx_ioctl_get_retry, /* SIOCGIWRETRY */
++ acx_ioctl_set_encode, /* SIOCSIWENCODE */
++ acx_ioctl_get_encode, /* SIOCGIWENCODE */
++ acx_ioctl_set_power, /* SIOCSIWPOWER */
++ acx_ioctl_get_power, /* SIOCGIWPOWER */
++};
++
++
++/***********************************************************************
++*/
++
++/* if you plan to reorder something, make sure to reorder all other places
++ * accordingly! */
++/* SET/GET convention: SETs must have even position, GETs odd */
++#define ACX100_IOCTL SIOCIWFIRSTPRIV
++enum {
++ ACX100_IOCTL_DEBUG = ACX100_IOCTL,
++ ACX100_IOCTL_GET__________UNUSED1,
++ ACX100_IOCTL_SET_PLED,
++ ACX100_IOCTL_GET_PLED,
++ ACX100_IOCTL_SET_RATES,
++ ACX100_IOCTL_LIST_DOM,
++ ACX100_IOCTL_SET_DOM,
++ ACX100_IOCTL_GET_DOM,
++ ACX100_IOCTL_SET_SCAN_PARAMS,
++ ACX100_IOCTL_GET_SCAN_PARAMS,
++ ACX100_IOCTL_SET_PREAMB,
++ ACX100_IOCTL_GET_PREAMB,
++ ACX100_IOCTL_SET_ANT,
++ ACX100_IOCTL_GET_ANT,
++ ACX100_IOCTL_RX_ANT,
++ ACX100_IOCTL_TX_ANT,
++ ACX100_IOCTL_SET_PHY_AMP_BIAS,
++ ACX100_IOCTL_GET_PHY_CHAN_BUSY,
++ ACX100_IOCTL_SET_ED,
++ ACX100_IOCTL_GET__________UNUSED3,
++ ACX100_IOCTL_SET_CCA,
++ ACX100_IOCTL_GET__________UNUSED4,
++ ACX100_IOCTL_MONITOR,
++ ACX100_IOCTL_TEST,
++ ACX100_IOCTL_DBG_SET_MASKS,
++ ACX111_IOCTL_INFO,
++ ACX100_IOCTL_DBG_SET_IO,
++ ACX100_IOCTL_DBG_GET_IO
++};
++
++
++static const iw_handler acx_ioctl_private_handler[] =
++{
++#if ACX_DEBUG
++[ACX100_IOCTL_DEBUG - ACX100_IOCTL] = acx_ioctl_set_debug,
++#endif
++[ACX100_IOCTL_SET_PLED - ACX100_IOCTL] = acx100_ioctl_set_led_power,
++[ACX100_IOCTL_GET_PLED - ACX100_IOCTL] = acx100_ioctl_get_led_power,
++[ACX100_IOCTL_SET_RATES - ACX100_IOCTL] = acx_ioctl_set_rates,
++[ACX100_IOCTL_LIST_DOM - ACX100_IOCTL] = acx_ioctl_list_reg_domain,
++[ACX100_IOCTL_SET_DOM - ACX100_IOCTL] = acx_ioctl_set_reg_domain,
++[ACX100_IOCTL_GET_DOM - ACX100_IOCTL] = acx_ioctl_get_reg_domain,
++[ACX100_IOCTL_SET_SCAN_PARAMS - ACX100_IOCTL] = acx_ioctl_set_scan_params,
++[ACX100_IOCTL_GET_SCAN_PARAMS - ACX100_IOCTL] = acx_ioctl_get_scan_params,
++[ACX100_IOCTL_SET_PREAMB - ACX100_IOCTL] = acx_ioctl_set_short_preamble,
++[ACX100_IOCTL_GET_PREAMB - ACX100_IOCTL] = acx_ioctl_get_short_preamble,
++[ACX100_IOCTL_SET_ANT - ACX100_IOCTL] = acx_ioctl_set_antenna,
++[ACX100_IOCTL_GET_ANT - ACX100_IOCTL] = acx_ioctl_get_antenna,
++[ACX100_IOCTL_RX_ANT - ACX100_IOCTL] = acx_ioctl_set_rx_antenna,
++[ACX100_IOCTL_TX_ANT - ACX100_IOCTL] = acx_ioctl_set_tx_antenna,
++[ACX100_IOCTL_SET_PHY_AMP_BIAS - ACX100_IOCTL] = acx100_ioctl_set_phy_amp_bias,
++[ACX100_IOCTL_GET_PHY_CHAN_BUSY - ACX100_IOCTL] = acx_ioctl_get_phy_chan_busy_percentage,
++[ACX100_IOCTL_SET_ED - ACX100_IOCTL] = acx_ioctl_set_ed_threshold,
++[ACX100_IOCTL_SET_CCA - ACX100_IOCTL] = acx_ioctl_set_cca,
++[ACX100_IOCTL_MONITOR - ACX100_IOCTL] = acx_ioctl_wlansniff,
++[ACX100_IOCTL_TEST - ACX100_IOCTL] = acx_ioctl_unknown11,
++[ACX100_IOCTL_DBG_SET_MASKS - ACX100_IOCTL] = acx_ioctl_dbg_set_masks,
++[ACX111_IOCTL_INFO - ACX100_IOCTL] = acx111_ioctl_info,
++};
++
++
++static const struct iw_priv_args acx_ioctl_private_args[] = {
++#if ACX_DEBUG
++{ cmd : ACX100_IOCTL_DEBUG,
++ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
++ get_args : 0,
++ name : "SetDebug" },
++#endif
++{ cmd : ACX100_IOCTL_SET_PLED,
++ set_args : IW_PRIV_TYPE_BYTE | 2,
++ get_args : 0,
++ name : "SetLEDPower" },
++{ cmd : ACX100_IOCTL_GET_PLED,
++ set_args : 0,
++ get_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 2,
++ name : "GetLEDPower" },
++{ cmd : ACX100_IOCTL_SET_RATES,
++ set_args : IW_PRIV_TYPE_CHAR | 256,
++ get_args : 0,
++ name : "SetRates" },
++{ cmd : ACX100_IOCTL_LIST_DOM,
++ set_args : 0,
++ get_args : 0,
++ name : "ListRegDomain" },
++{ cmd : ACX100_IOCTL_SET_DOM,
++ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
++ get_args : 0,
++ name : "SetRegDomain" },
++{ cmd : ACX100_IOCTL_GET_DOM,
++ set_args : 0,
++ get_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
++ name : "GetRegDomain" },
++{ cmd : ACX100_IOCTL_SET_SCAN_PARAMS,
++ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 4,
++ get_args : 0,
++ name : "SetScanParams" },
++{ cmd : ACX100_IOCTL_GET_SCAN_PARAMS,
++ set_args : 0,
++ get_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 4,
++ name : "GetScanParams" },
++{ cmd : ACX100_IOCTL_SET_PREAMB,
++ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
++ get_args : 0,
++ name : "SetSPreamble" },
++{ cmd : ACX100_IOCTL_GET_PREAMB,
++ set_args : 0,
++ get_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
++ name : "GetSPreamble" },
++{ cmd : ACX100_IOCTL_SET_ANT,
++ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
++ get_args : 0,
++ name : "SetAntenna" },
++{ cmd : ACX100_IOCTL_GET_ANT,
++ set_args : 0,
++ get_args : 0,
++ name : "GetAntenna" },
++{ cmd : ACX100_IOCTL_RX_ANT,
++ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
++ get_args : 0,
++ name : "SetRxAnt" },
++{ cmd : ACX100_IOCTL_TX_ANT,
++ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
++ get_args : 0,
++ name : "SetTxAnt" },
++{ cmd : ACX100_IOCTL_SET_PHY_AMP_BIAS,
++ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
++ get_args : 0,
++ name : "SetPhyAmpBias"},
++{ cmd : ACX100_IOCTL_GET_PHY_CHAN_BUSY,
++ set_args : 0,
++ get_args : 0,
++ name : "GetPhyChanBusy" },
++{ cmd : ACX100_IOCTL_SET_ED,
++ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
++ get_args : 0,
++ name : "SetED" },
++{ cmd : ACX100_IOCTL_SET_CCA,
++ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
++ get_args : 0,
++ name : "SetCCA" },
++{ cmd : ACX100_IOCTL_MONITOR,
++ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2,
++ get_args : 0,
++ name : "monitor" },
++{ cmd : ACX100_IOCTL_TEST,
++ set_args : 0,
++ get_args : 0,
++ name : "Test" },
++{ cmd : ACX100_IOCTL_DBG_SET_MASKS,
++ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2,
++ get_args : 0,
++ name : "DbgSetMasks" },
++{ cmd : ACX111_IOCTL_INFO,
++ set_args : 0,
++ get_args : 0,
++ name : "GetAcx111Info" },
++{ cmd : ACX100_IOCTL_DBG_SET_IO,
++ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 4,
++ get_args : 0,
++ name : "DbgSetIO" },
++{ cmd : ACX100_IOCTL_DBG_GET_IO,
++ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 3,
++ get_args : 0,
++ name : "DbgGetIO" },
++};
++
++
++const struct iw_handler_def acx_ioctl_handler_def =
++{
++ .num_standard = VEC_SIZE(acx_ioctl_handler),
++ .num_private = VEC_SIZE(acx_ioctl_private_handler),
++ .num_private_args = VEC_SIZE(acx_ioctl_private_args),
++ .standard = (iw_handler *) acx_ioctl_handler,
++ .private = (iw_handler *) acx_ioctl_private_handler,
++ .private_args = (struct iw_priv_args *) acx_ioctl_private_args,
++#if IW_HANDLER_VERSION > 5
++ .get_wireless_stats = acx_e_get_wireless_stats
++#endif /* IW > 5 */
++};
+Index: linux-2.6.22/drivers/net/wireless/acx/Kconfig
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/Kconfig 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,113 @@
++config ACX
++ tristate "TI acx100/acx111 802.11b/g wireless chipsets"
++ depends on NET_RADIO && EXPERIMENTAL
++ select FW_LOADER
++ ---help---
++ A driver for 802.11b/g wireless cards based on
++ Texas Instruments acx100 and acx111 chipsets.
++
++ This driver supports Host AP mode that allows
++ your computer to act as an IEEE 802.11 access point.
++ This driver is new and experimental.
++
++ Texas Instruments did not take part in development of this driver
++ in any way, shape or form.
++
++ The driver can be compiled as a module and will be named "acx".
++
++config ACX_PCI
++ bool "TI acx100/acx111 802.11b/g PCI"
++ depends on ACX && PCI
++ ---help---
++ Include PCI and CardBus support in acx.
++
++ acx chipsets need their firmware loaded at startup.
++ You will need to provide a firmware image via hotplug.
++
++ Firmware may be in a form of single image 40-100kb in size
++ (a 'combined' firmware) or two images - main image
++ (again 40-100kb) and radio image (~10kb or less).
++
++ Firmware images are requested from hotplug using following names:
++
++ tiacx100 - main firmware image for acx100 chipset
++ tiacx100rNN - radio acx100 firmware for radio type NN
++ tiacx100cNN - combined acx100 firmware for radio type NN
++ tiacx111 - main acx111 firmware
++ tiacx111rNN - radio acx111 firmware for radio type NN
++ tiacx111cNN - combined acx111 firmware for radio type NN
++
++ Driver will attempt to load combined image first.
++ If no such image is found, it will try to load main image
++ and radio image instead.
++
++ Firmware files are not covered by GPL and are not distributed
++ with this driver for legal reasons.
++
++config ACX_USB
++ bool "TI acx100/acx111 802.11b/g USB"
++ depends on ACX && (USB=y || USB=ACX)
++ ---help---
++ Include USB support in acx.
++
++ There is only one currently known device in this category,
++ D-Link DWL-120+, but newer devices seem to be on the horizon.
++
++ acx chipsets need their firmware loaded at startup.
++ You will need to provide a firmware image via hotplug.
++
++ Firmware for USB device is requested from hotplug
++ by the 'tiacx100usb' name.
++
++ Firmware files are not covered by GPL and are not distributed
++ with this driver for legal reasons.
++
++config ACX_MEM
++ bool "TI acx100/acx111 802.11b/g memory mapped slave 16 interface"
++ depends on ACX
++ ---help---
++ acx chipsets need their firmware loaded at startup.
++ You will need to provide a firmware image via hotplug.
++
++ Firmware for USB device is requested from hotplug
++ by the 'tiacx100usb' name.
++
++ Firmware files are not covered by GPL and are not distributed
++ with this driver for legal reasons.
++
++config ACX_CS
++ bool "TI acx100/acx111 802.11b/g cardbus interface"
++ depends on ACX
++ ---help---
++ acx chipsets need their firmware loaded at startup.
++ You will need to provide a firmware image via hotplug.
++
++ This driver is based on memory mapped driver.
++
++ Firmware files are not covered by GPL and are not distributed
++ with this driver for legal reasons.
++
++config ACX_HX4700
++ tristate "ACX support for the iPAQ hx4700 using ACX_MEM"
++ depends on HX4700_CORE && ACX_MEM
++ ---help---
++ Include memory interface support in acx for the iPAQ hx4700.
++
++config ACX_HTCUNIVERSAL
++ tristate "ACX support for the HTC Universal using ACX_MEM"
++ depends on HTCUNIVERSAL_CORE && HTC_ASIC3 && ACX_MEM
++ ---help---
++ Include memory interface support in acx for the HTC Universal.
++
++config ACX_HTCSABLE
++ tristate "ACX support for the HTC Sable (IPAQ hw6915) using ACX_MEM"
++ depends on MACH_HW6900 && HTC_ASIC3 && ACX_MEM
++ ---help---
++ Include memory interface support in acx for the HTC Sable (IPAQ hw6915).
++
++config ACX_RX3000
++ tristate "ACX support for the iPAQ RX3000 using ACX_MEM"
++ depends on MACH_RX3715 && ACX_MEM && LEDS_ASIC3
++ ---help---
++ Include memory interface support in acx for the IPAQ RX3000.
++
+Index: linux-2.6.22/drivers/net/wireless/acx/Makefile
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/Makefile 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,21 @@
++#obj-m += acx.o
++
++#acx-obj-y += pci.o
++#acx-obj-y += usb.o
++
++#acx-objs := wlan.o conv.o ioctl.o common.o $(acx-obj-y)
++
++# Use this if you have proper Kconfig integration:
++
++obj-$(CONFIG_ACX) += acx.o
++obj-$(CONFIG_ACX_HX4700) += hx4700_acx.o
++obj-$(CONFIG_ACX_HTCUNIVERSAL) += htcuniversal_acx.o
++obj-$(CONFIG_ACX_HTCSABLE) += htcsable_acx.o
++obj-$(CONFIG_ACX_RX3000) += rx3000_acx.o
++#
++acx-obj-$(CONFIG_ACX_PCI) += pci.o
++acx-obj-$(CONFIG_ACX_USB) += usb.o
++acx-obj-$(CONFIG_ACX_MEM) += mem.o
++acx-obj-$(CONFIG_ACX_CS) += cs.o
++#
++acx-objs := wlan.o conv.o ioctl.o common.o $(acx-obj-y)
+Index: linux-2.6.22/drivers/net/wireless/acx/mem.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/mem.c 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,5363 @@
++/***********************************************************************
++** Copyright (C) 2003 ACX100 Open Source Project
++**
++** The contents of this file are subject to the Mozilla Public
++** License Version 1.1 (the "License"); you may not use this file
++** except in compliance with the License. You may obtain a copy of
++** the License at http://www.mozilla.org/MPL/
++**
++** Software distributed under the License is distributed on an "AS
++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
++** implied. See the License for the specific language governing
++** rights and limitations under the License.
++**
++** Alternatively, the contents of this file may be used under the
++** terms of the GNU Public License version 2 (the "GPL"), in which
++** case the provisions of the GPL are applicable instead of the
++** above. If you wish to allow the use of your version of this file
++** only under the terms of the GPL and not to allow others to use
++** your version of this file under the MPL, indicate your decision
++** by deleting the provisions above and replace them with the notice
++** and other provisions required by the GPL. If you do not delete
++** the provisions above, a recipient may use your version of this
++** file under either the MPL or the GPL.
++** ---------------------------------------------------------------------
++** Inquiries regarding the ACX100 Open Source Project can be
++** made directly to:
++**
++** acx100-users@lists.sf.net
++** http://acx100.sf.net
++** ---------------------------------------------------------------------
++**
++** Slave memory interface support:
++**
++** Todd Blumer - SDG Systems
++** Bill Reese - HP
++** Eric McCorkle - Shadowsun
++*/
++#define ACX_MEM 1
++
++/*
++ * non-zero makes it dump the ACX memory to the console then
++ * panic when you cat /proc/driver/acx_wlan0_diag
++ */
++#define DUMP_MEM_DEFINED 1
++
++#define DUMP_MEM_DURING_DIAG 0
++#define DUMP_IF_SLOW 0
++
++#define PATCH_AROUND_BAD_SPOTS 1
++#define HX4700_FIRMWARE_CHECKSUM 0x0036862e
++#define HX4700_ALTERNATE_FIRMWARE_CHECKSUM 0x00368a75
++
++#include <linux/version.h>
++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
++#include <linux/config.h>
++#endif
++
++/* Linux 2.6.18+ uses <linux/utsrelease.h> */
++#ifndef UTS_RELEASE
++#include <linux/utsrelease.h>
++#endif
++
++#include <linux/compiler.h> /* required for Lx 2.6.8 ?? */
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/sched.h>
++#include <linux/types.h>
++#include <linux/skbuff.h>
++#include <linux/slab.h>
++#include <linux/if_arp.h>
++#include <linux/irq.h>
++#include <linux/rtnetlink.h>
++#include <linux/wireless.h>
++#include <net/iw_handler.h>
++#include <linux/netdevice.h>
++#include <linux/ioport.h>
++#include <linux/pci.h>
++#include <linux/platform_device.h>
++#include <linux/pm.h>
++#include <linux/vmalloc.h>
++#include <linux/delay.h>
++#include <linux/workqueue.h>
++#include <linux/inetdevice.h>
++
++#include "acx.h"
++#include "acx_hw.h"
++
++/***********************************************************************
++*/
++
++#define CARD_EEPROM_ID_SIZE 6
++
++#include <asm/io.h>
++
++#define REG_ACX_VENDOR_ID 0x900
++/*
++ * This is the vendor id on the HX4700, anyway
++ */
++#define ACX_VENDOR_ID 0x8400104c
++
++typedef enum {
++ ACX_SOFT_RESET = 0,
++
++ ACX_SLV_REG_ADDR,
++ ACX_SLV_REG_DATA,
++ ACX_SLV_REG_ADATA,
++
++ ACX_SLV_MEM_CP,
++ ACX_SLV_MEM_ADDR,
++ ACX_SLV_MEM_DATA,
++ ACX_SLV_MEM_CTL,
++} acxreg_t;
++
++/***********************************************************************
++*/
++static void acxmem_i_tx_timeout(struct net_device *ndev);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
++static irqreturn_t acxmem_i_interrupt(int irq, void *dev_id);
++#else
++static irqreturn_t acxmem_i_interrupt(int irq, void *dev_id, struct pt_regs *regs);
++#endif
++static void acxmem_i_set_multicast_list(struct net_device *ndev);
++
++static int acxmem_e_open(struct net_device *ndev);
++static int acxmem_e_close(struct net_device *ndev);
++static void acxmem_s_up(struct net_device *ndev);
++static void acxmem_s_down(struct net_device *ndev);
++
++static void dump_acxmem (acx_device_t *adev, u32 start, int length);
++static int acxmem_complete_hw_reset (acx_device_t *adev);
++static void acxmem_s_delete_dma_regions(acx_device_t *adev);
++
++static struct platform_device *resume_pdev;
++
++static int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
++acxmem_e_suspend(struct platform_device *pdev, pm_message_t state);
++#else
++acxmem_e_suspend(struct device *pdev, u32 state);
++#endif
++static void
++fw_resumer(struct work_struct *notused);
++//fw_resumer( void *data );
++
++static int acx_netdev_event(struct notifier_block *this, unsigned long event, void *ptr)
++{
++ struct net_device *ndev = ptr;
++ acx_device_t *adev = ndev2adev(ndev);
++
++ /*
++ * Upper level ioctl() handlers send a NETDEV_CHANGEADDR if the MAC address changes.
++ */
++
++ if (NETDEV_CHANGEADDR == event) {
++ /*
++ * the upper layers put the new MAC address in ndev->dev_addr; we just copy
++ * it over and update the ACX with it.
++ */
++ MAC_COPY(adev->dev_addr, adev->ndev->dev_addr);
++ adev->set_mask |= GETSET_STATION_ID;
++ acx_s_update_card_settings (adev);
++ }
++
++ return 0;
++}
++
++static struct notifier_block acx_netdev_notifier = {
++ .notifier_call = acx_netdev_event,
++};
++
++/***********************************************************************
++** Register access
++*/
++
++/* Pick one */
++/* #define INLINE_IO static */
++#define INLINE_IO static inline
++
++INLINE_IO u32
++read_id_register (acx_device_t *adev)
++{
++ writel (0x24, &adev->iobase[ACX_SLV_REG_ADDR]);
++ return readl (&adev->iobase[ACX_SLV_REG_DATA]);
++}
++
++INLINE_IO u32
++read_reg32(acx_device_t *adev, unsigned int offset)
++{
++ u32 val;
++ u32 addr;
++
++ if (offset > IO_ACX_ECPU_CTRL)
++ addr = offset;
++ else
++ addr = adev->io[offset];
++
++ if (addr < 0x20) {
++ return readl(((u8*)adev->iobase) + addr);
++ }
++
++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
++ val = readl( &adev->iobase[ACX_SLV_REG_DATA] );
++
++ return val;
++}
++
++INLINE_IO u16
++read_reg16(acx_device_t *adev, unsigned int offset)
++{
++ u16 lo;
++ u32 addr;
++
++ if (offset > IO_ACX_ECPU_CTRL)
++ addr = offset;
++ else
++ addr = adev->io[offset];
++
++ if (addr < 0x20) {
++ return readw(((u8 *) adev->iobase) + addr);
++ }
++
++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
++ lo = readw( (u16 *)&adev->iobase[ACX_SLV_REG_DATA] );
++
++ return lo;
++}
++
++INLINE_IO u8
++read_reg8(acx_device_t *adev, unsigned int offset)
++{
++ u8 lo;
++ u32 addr;
++
++ if (offset > IO_ACX_ECPU_CTRL)
++ addr = offset;
++ else
++ addr = adev->io[offset];
++
++ if (addr < 0x20)
++ return readb(((u8 *)adev->iobase) + addr);
++
++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
++ lo = readw( (u8 *)&adev->iobase[ACX_SLV_REG_DATA] );
++
++ return (u8)lo;
++}
++
++INLINE_IO void
++write_reg32(acx_device_t *adev, unsigned int offset, u32 val)
++{
++ u32 addr;
++
++ if (offset > IO_ACX_ECPU_CTRL)
++ addr = offset;
++ else
++ addr = adev->io[offset];
++
++ if (addr < 0x20) {
++ writel(val, ((u8*)adev->iobase) + addr);
++ return;
++ }
++
++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
++ writel( val, &adev->iobase[ACX_SLV_REG_DATA] );
++}
++
++INLINE_IO void
++write_reg16(acx_device_t *adev, unsigned int offset, u16 val)
++{
++ u32 addr;
++
++ if (offset > IO_ACX_ECPU_CTRL)
++ addr = offset;
++ else
++ addr = adev->io[offset];
++
++ if (addr < 0x20) {
++ writew(val, ((u8 *)adev->iobase) + addr);
++ return;
++ }
++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
++ writew( val, (u16 *) &adev->iobase[ACX_SLV_REG_DATA] );
++}
++
++INLINE_IO void
++write_reg8(acx_device_t *adev, unsigned int offset, u8 val)
++{
++ u32 addr;
++
++ if (offset > IO_ACX_ECPU_CTRL)
++ addr = offset;
++ else
++ addr = adev->io[offset];
++
++ if (addr < 0x20) {
++ writeb(val, ((u8 *) adev->iobase) + addr);
++ return;
++ }
++ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
++ writeb( val, (u8 *)&adev->iobase[ACX_SLV_REG_DATA] );
++}
++
++/* Handle PCI posting properly:
++ * Make sure that writes reach the adapter in case they require to be executed
++ * *before* the next write, by reading a random (and safely accessible) register.
++ * This call has to be made if there is no read following (which would flush the data
++ * to the adapter), yet the written data has to reach the adapter immediately. */
++INLINE_IO void
++write_flush(acx_device_t *adev)
++{
++ /* readb(adev->iobase + adev->io[IO_ACX_INFO_MAILBOX_OFFS]); */
++ /* faster version (accesses the first register, IO_ACX_SOFT_RESET,
++ * which should also be safe): */
++ (void) readl(adev->iobase);
++}
++
++INLINE_IO void
++set_regbits (acx_device_t *adev, unsigned int offset, u32 bits) {
++ u32 tmp;
++
++ tmp = read_reg32 (adev, offset);
++ tmp = tmp | bits;
++ write_reg32 (adev, offset, tmp);
++ write_flush (adev);
++}
++
++INLINE_IO void
++clear_regbits (acx_device_t *adev, unsigned int offset, u32 bits) {
++ u32 tmp;
++
++ tmp = read_reg32 (adev, offset);
++ tmp = tmp & ~bits;
++ write_reg32 (adev, offset, tmp);
++ write_flush (adev);
++}
++
++/*
++ * Copy from PXA memory to the ACX memory. This assumes both the PXA and ACX
++ * addresses are 32 bit aligned. Count is in bytes.
++ */
++INLINE_IO void
++write_slavemem32 (acx_device_t *adev, u32 slave_address, u32 val)
++{
++ write_reg32 (adev, IO_ACX_SLV_MEM_CTL, 0x0);
++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, slave_address);
++ udelay (10);
++ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, val);
++}
++
++INLINE_IO u32
++read_slavemem32 (acx_device_t *adev, u32 slave_address)
++{
++ u32 val;
++
++ write_reg32 (adev, IO_ACX_SLV_MEM_CTL, 0x0);
++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, slave_address);
++ udelay (10);
++ val = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
++
++ return val;
++}
++
++INLINE_IO void
++write_slavemem8 (acx_device_t *adev, u32 slave_address, u8 val)
++{
++ u32 data;
++ u32 base;
++ int offset;
++
++ /*
++ * Get the word containing the target address and the byte offset in that word.
++ */
++ base = slave_address & ~3;
++ offset = (slave_address & 3) * 8;
++
++ data = read_slavemem32 (adev, base);
++ data &= ~(0xff << offset);
++ data |= val << offset;
++ write_slavemem32 (adev, base, data);
++}
++
++INLINE_IO u8
++read_slavemem8 (acx_device_t *adev, u32 slave_address)
++{
++ u8 val;
++ u32 base;
++ u32 data;
++ int offset;
++
++ base = slave_address & ~3;
++ offset = (slave_address & 3) * 8;
++
++ data = read_slavemem32 (adev, base);
++
++ val = (data >> offset) & 0xff;
++
++ return val;
++}
++
++/*
++ * doesn't split across word boundaries
++ */
++INLINE_IO void
++write_slavemem16 (acx_device_t *adev, u32 slave_address, u16 val)
++{
++ u32 data;
++ u32 base;
++ int offset;
++
++ /*
++ * Get the word containing the target address and the byte offset in that word.
++ */
++ base = slave_address & ~3;
++ offset = (slave_address & 3) * 8;
++
++ data = read_slavemem32 (adev, base);
++ data &= ~(0xffff << offset);
++ data |= val << offset;
++ write_slavemem32 (adev, base, data);
++}
++
++/*
++ * doesn't split across word boundaries
++ */
++INLINE_IO u16
++read_slavemem16 (acx_device_t *adev, u32 slave_address)
++{
++ u16 val;
++ u32 base;
++ u32 data;
++ int offset;
++
++ base = slave_address & ~3;
++ offset = (slave_address & 3) * 8;
++
++ data = read_slavemem32 (adev, base);
++
++ val = (data >> offset) & 0xffff;
++
++ return val;
++}
++
++/*
++ * Copy from slave memory
++ *
++ * TODO - rewrite using address autoincrement, handle partial words
++ */
++void
++copy_from_slavemem (acx_device_t *adev, u8 *destination, u32 source, int count) {
++ u32 tmp = 0;
++ u8 *ptmp = (u8 *) &tmp;
++
++ /*
++ * Right now I'm making the assumption that the destination is aligned, but
++ * I'd better check.
++ */
++ if ((u32) destination & 3) {
++ printk ("acx copy_from_slavemem: warning! destination not word-aligned!\n");
++ }
++
++ while (count >= 4) {
++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, source);
++ udelay (10);
++ *((u32 *) destination) = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
++ count -= 4;
++ source += 4;
++ destination += 4;
++ }
++
++ /*
++ * If the word reads above didn't satisfy the count, read one more word
++ * and transfer a byte at a time until the request is satisfied.
++ */
++ if (count) {
++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, source);
++ udelay (10);
++ tmp = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
++ while (count--) {
++ *destination++ = *ptmp++;
++ }
++ }
++}
++
++/*
++ * Copy to slave memory
++ *
++ * TODO - rewrite using autoincrement, handle partial words
++ */
++void
++copy_to_slavemem (acx_device_t *adev, u32 destination, u8 *source, int count)
++{
++ u32 tmp = 0;
++ u8* ptmp = (u8 *) &tmp;
++ static u8 src[512]; /* make static to avoid huge stack objects */
++
++ /*
++ * For now, make sure the source is word-aligned by copying it to a word-aligned
++ * buffer. Someday rewrite to avoid the extra copy.
++ */
++ if (count > sizeof (src)) {
++ printk ("acx copy_to_slavemem: Warning! buffer overflow!\n");
++ count = sizeof (src);
++ }
++ memcpy (src, source, count);
++ source = src;
++
++ while (count >= 4) {
++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination);
++ udelay (10);
++ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, *((u32 *) source));
++ count -= 4;
++ source += 4;
++ destination += 4;
++ }
++
++ /*
++ * If there are leftovers read the next word from the acx and merge in
++ * what they want to write.
++ */
++ if (count) {
++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination);
++ udelay (10);
++ tmp = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
++ while (count--) {
++ *ptmp++ = *source++;
++ }
++ /*
++ * reset address in case we're currently in auto-increment mode
++ */
++ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination);
++ udelay (10);
++ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, tmp);
++ udelay (10);
++ }
++
++}
++
++/*
++ * Block copy to slave buffers using memory block chain mode. Copies to the ACX
++ * transmit buffer structure with minimal intervention on our part.
++ * Interrupts should be disabled when calling this.
++ */
++void
++chaincopy_to_slavemem (acx_device_t *adev, u32 destination, u8 *source, int count)
++{
++ u32 val;
++ u32 *data = (u32 *) source;
++ static u8 aligned_source[WLAN_A4FR_MAXLEN_WEP_FCS];
++
++ /*
++ * Warn if the pointers don't look right. Destination must fit in [23:5] with
++ * zero elsewhere and source should be 32 bit aligned.
++ * This should never happen since we're in control of both, but I want to know about
++ * it if it does.
++ */
++ if ((destination & 0x00ffffe0) != destination) {
++ printk ("acx chaincopy: destination block 0x%04x not aligned!\n", destination);
++ }
++ if (count > sizeof aligned_source) {
++ printk( KERN_ERR "chaincopy_to_slavemem overflow!\n" );
++ count = sizeof aligned_source;
++ }
++ if ((u32) source & 3) {
++ memcpy (aligned_source, source, count);
++ data = (u32 *) aligned_source;
++ }
++
++ /*
++ * SLV_MEM_CTL[17:16] = memory block chain mode with auto-increment
++ * SLV_MEM_CTL[5:2] = offset to data portion = 1 word
++ */
++ val = 2 << 16 | 1 << 2;
++ writel (val, &adev->iobase[ACX_SLV_MEM_CTL]);
++
++ /*
++ * SLV_MEM_CP[23:5] = start of 1st block
++ * SLV_MEM_CP[3:2] = offset to memblkptr = 0
++ */
++ val = destination & 0x00ffffe0;
++ writel (val, &adev->iobase[ACX_SLV_MEM_CP]);
++
++ /*
++ * SLV_MEM_ADDR[23:2] = SLV_MEM_CTL[5:2] + SLV_MEM_CP[23:5]
++ */
++ val = (destination & 0x00ffffe0) + (1<<2);
++ writel (val, &adev->iobase[ACX_SLV_MEM_ADDR]);
++
++ /*
++ * Write the data to the slave data register, rounding up to the end
++ * of the word containing the last byte (hence the > 0)
++ */
++ while (count > 0) {
++ writel (*data++, &adev->iobase[ACX_SLV_MEM_DATA]);
++ count -= 4;
++ }
++}
++
++
++/*
++ * Block copy from slave buffers using memory block chain mode. Copies from the ACX
++ * receive buffer structures with minimal intervention on our part.
++ * Interrupts should be disabled when calling this.
++ */
++void
++chaincopy_from_slavemem (acx_device_t *adev, u8 *destination, u32 source, int count)
++{
++ u32 val;
++ u32 *data = (u32 *) destination;
++ static u8 aligned_destination[WLAN_A4FR_MAXLEN_WEP_FCS];
++ int saved_count = count;
++
++ /*
++ * Warn if the pointers don't look right. Destination must fit in [23:5] with
++ * zero elsewhere and source should be 32 bit aligned.
++ * Turns out the network stack sends unaligned things, so fix them before
++ * copying to the ACX.
++ */
++ if ((source & 0x00ffffe0) != source) {
++ printk ("acx chaincopy: source block 0x%04x not aligned!\n", source);
++ dump_acxmem (adev, 0, 0x10000);
++ }
++ if ((u32) destination & 3) {
++ //printk ("acx chaincopy: data destination not word aligned!\n");
++ data = (u32 *) aligned_destination;
++ if (count > sizeof aligned_destination) {
++ printk( KERN_ERR "chaincopy_from_slavemem overflow!\n" );
++ count = sizeof aligned_destination;
++ }
++ }
++
++ /*
++ * SLV_MEM_CTL[17:16] = memory block chain mode with auto-increment
++ * SLV_MEM_CTL[5:2] = offset to data portion = 1 word
++ */
++ val = (2 << 16) | (1 << 2);
++ writel (val, &adev->iobase[ACX_SLV_MEM_CTL]);
++
++ /*
++ * SLV_MEM_CP[23:5] = start of 1st block
++ * SLV_MEM_CP[3:2] = offset to memblkptr = 0
++ */
++ val = source & 0x00ffffe0;
++ writel (val, &adev->iobase[ACX_SLV_MEM_CP]);
++
++ /*
++ * SLV_MEM_ADDR[23:2] = SLV_MEM_CTL[5:2] + SLV_MEM_CP[23:5]
++ */
++ val = (source & 0x00ffffe0) + (1<<2);
++ writel (val, &adev->iobase[ACX_SLV_MEM_ADDR]);
++
++ /*
++ * Read the data from the slave data register, rounding up to the end
++ * of the word containing the last byte (hence the > 0)
++ */
++ while (count > 0) {
++ *data++ = readl (&adev->iobase[ACX_SLV_MEM_DATA]);
++ count -= 4;
++ }
++
++ /*
++ * If the destination wasn't aligned, we would have saved it in
++ * the aligned buffer, so copy it where it should go.
++ */
++ if ((u32) destination & 3) {
++ memcpy (destination, aligned_destination, saved_count);
++ }
++}
++
++char
++printable (char c)
++{
++ return ((c >= 20) && (c < 127)) ? c : '.';
++}
++
++#if DUMP_MEM_DEFINED > 0
++static void
++dump_acxmem (acx_device_t *adev, u32 start, int length)
++{
++ int i;
++ u8 buf[16];
++
++ while (length > 0) {
++ printk ("%04x ", start);
++ copy_from_slavemem (adev, buf, start, 16);
++ for (i = 0; (i < 16) && (i < length); i++) {
++ printk ("%02x ", buf[i]);
++ }
++ for (i = 0; (i < 16) && (i < length); i++) {
++ printk ("%c", printable (buf[i]));
++ }
++ printk ("\n");
++ start += 16;
++ length -= 16;
++ }
++}
++#endif
++
++static void
++enable_acx_irq(acx_device_t *adev);
++static void
++disable_acx_irq(acx_device_t *adev);
++
++/*
++ * Return an acx pointer to the next transmit data block.
++ */
++u32
++allocate_acx_txbuf_space (acx_device_t *adev, int count) {
++ u32 block, next, last_block;
++ int blocks_needed;
++ unsigned long flags;
++
++ spin_lock_irqsave(&adev->txbuf_lock, flags);
++ /*
++ * Take 4 off the memory block size to account for the reserved word at the start of
++ * the block.
++ */
++ blocks_needed = count / (adev->memblocksize - 4);
++ if (count % (adev->memblocksize - 4))
++ blocks_needed++;
++
++ if (blocks_needed <= adev->acx_txbuf_blocks_free) {
++ /*
++ * Take blocks at the head of the free list.
++ */
++ last_block = block = adev->acx_txbuf_free;
++
++ /*
++ * Follow block pointers through the requested number of blocks both to
++ * find the new head of the free list and to set the flags for the blocks
++ * appropriately.
++ */
++ while (blocks_needed--) {
++ /*
++ * Keep track of the last block of the allocation
++ */
++ last_block = adev->acx_txbuf_free;
++
++ /*
++ * Make sure the end control flag is not set.
++ */
++ next = read_slavemem32 (adev, adev->acx_txbuf_free) & 0x7ffff;
++ write_slavemem32 (adev, adev->acx_txbuf_free, next);
++
++ /*
++ * Update the new head of the free list
++ */
++ adev->acx_txbuf_free = next << 5;
++ adev->acx_txbuf_blocks_free--;
++
++ }
++
++ /*
++ * Flag the last block both by clearing out the next pointer
++ * and marking the control field.
++ */
++ write_slavemem32 (adev, last_block, 0x02000000);
++
++ /*
++ * If we're out of buffers make sure the free list pointer is NULL
++ */
++ if (!adev->acx_txbuf_blocks_free) {
++ adev->acx_txbuf_free = 0;
++ }
++ }
++ else {
++ block = 0;
++ }
++ spin_unlock_irqrestore (&adev->txbuf_lock, flags);
++ return block;
++}
++
++/*
++ * Return buffer space back to the pool by following the next pointers until we find
++ * the block marked as the end. Point the last block to the head of the free list,
++ * then update the head of the free list to point to the newly freed memory.
++ * This routine gets called in interrupt context, so it shouldn't block to protect
++ * the integrity of the linked list. The ISR already holds the lock.
++ */
++void
++reclaim_acx_txbuf_space (acx_device_t *adev, u32 blockptr) {
++ u32 cur, last, next;
++ unsigned long flags;
++
++ spin_lock_irqsave (&adev->txbuf_lock, flags);
++ if ((blockptr >= adev->acx_txbuf_start) &&
++ (blockptr <= adev->acx_txbuf_start +
++ (adev->acx_txbuf_numblocks - 1) * adev->memblocksize)) {
++ cur = blockptr;
++ do {
++ last = cur;
++ next = read_slavemem32 (adev, cur);
++
++ /*
++ * Advance to the next block in this allocation
++ */
++ cur = (next & 0x7ffff) << 5;
++
++ /*
++ * This block now counts as free.
++ */
++ adev->acx_txbuf_blocks_free++;
++ } while (!(next & 0x02000000));
++
++ /*
++ * last now points to the last block of that allocation. Update the pointer
++ * in that block to point to the free list and reset the free list to the
++ * first block of the free call. If there were no free blocks, make sure
++ * the new end of the list marks itself as truly the end.
++ */
++ if (adev->acx_txbuf_free) {
++ write_slavemem32 (adev, last, adev->acx_txbuf_free >> 5);
++ }
++ else {
++ write_slavemem32 (adev, last, 0x02000000);
++ }
++ adev->acx_txbuf_free = blockptr;
++ }
++ spin_unlock_irqrestore(&adev->txbuf_lock, flags);
++}
++
++/*
++ * Initialize the pieces managing the transmit buffer pool on the ACX. The transmit
++ * buffer is a circular queue with one 32 bit word reserved at the beginning of each
++ * block. The upper 13 bits are a control field, of which only 0x02000000 has any
++ * meaning. The lower 19 bits are the address of the next block divided by 32.
++ */
++void
++init_acx_txbuf (acx_device_t *adev) {
++
++ /*
++ * acx100_s_init_memory_pools set up txbuf_start and txbuf_numblocks for us.
++ * All we need to do is reset the rest of the bookeeping.
++ */
++
++ adev->acx_txbuf_free = adev->acx_txbuf_start;
++ adev->acx_txbuf_blocks_free = adev->acx_txbuf_numblocks;
++
++ /*
++ * Initialization leaves the last transmit pool block without a pointer back to
++ * the head of the list, but marked as the end of the list. That's how we want
++ * to see it, too, so leave it alone. This is only ever called after a firmware
++ * reset, so the ACX memory is in the state we want.
++ */
++
++}
++
++INLINE_IO int
++adev_present(acx_device_t *adev)
++{
++ /* fast version (accesses the first register, IO_ACX_SOFT_RESET,
++ * which should be safe): */
++ return readl(adev->iobase) != 0xffffffff;
++}
++
++/***********************************************************************
++*/
++static inline txdesc_t*
++get_txdesc(acx_device_t *adev, int index)
++{
++ return (txdesc_t*) (((u8*)adev->txdesc_start) + index * adev->txdesc_size);
++}
++
++static inline txdesc_t*
++advance_txdesc(acx_device_t *adev, txdesc_t* txdesc, int inc)
++{
++ return (txdesc_t*) (((u8*)txdesc) + inc * adev->txdesc_size);
++}
++
++static txhostdesc_t*
++get_txhostdesc(acx_device_t *adev, txdesc_t* txdesc)
++{
++ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return NULL;
++ }
++ index /= adev->txdesc_size;
++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return NULL;
++ }
++ return &adev->txhostdesc_start[index*2];
++}
++
++static inline client_t*
++get_txc(acx_device_t *adev, txdesc_t* txdesc)
++{
++ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return NULL;
++ }
++ index /= adev->txdesc_size;
++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return NULL;
++ }
++ return adev->txc[index];
++}
++
++static inline u16
++get_txr(acx_device_t *adev, txdesc_t* txdesc)
++{
++ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
++ index /= adev->txdesc_size;
++ return adev->txr[index];
++}
++
++static inline void
++put_txcr(acx_device_t *adev, txdesc_t* txdesc, client_t* c, u16 r111)
++{
++ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return;
++ }
++ index /= adev->txdesc_size;
++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return;
++ }
++ adev->txc[index] = c;
++ adev->txr[index] = r111;
++}
++
++
++/***********************************************************************
++** EEPROM and PHY read/write helpers
++*/
++/***********************************************************************
++** acxmem_read_eeprom_byte
++**
++** Function called to read an octet in the EEPROM.
++**
++** This function is used by acxmem_e_probe to check if the
++** connected card is a legal one or not.
++**
++** Arguments:
++** adev ptr to acx_device structure
++** addr address to read in the EEPROM
++** charbuf ptr to a char. This is where the read octet
++** will be stored
++*/
++int
++acxmem_read_eeprom_byte(acx_device_t *adev, u32 addr, u8 *charbuf)
++{
++ int result;
++ int count;
++
++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr);
++ write_flush(adev);
++ write_reg32(adev, IO_ACX_EEPROM_CTL, 2);
++
++ count = 0xffff;
++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
++ /* scheduling away instead of CPU burning loop
++ * doesn't seem to work here at all:
++ * awful delay, sometimes also failure.
++ * Doesn't matter anyway (only small delay). */
++ if (unlikely(!--count)) {
++ printk("%s: timeout waiting for EEPROM read\n",
++ adev->ndev->name);
++ result = NOT_OK;
++ goto fail;
++ }
++ cpu_relax();
++ }
++
++ *charbuf = read_reg8(adev, IO_ACX_EEPROM_DATA);
++ log(L_DEBUG, "EEPROM at 0x%04X = 0x%02X\n", addr, *charbuf);
++ result = OK;
++
++fail:
++ return result;
++}
++
++
++/***********************************************************************
++** We don't lock hw accesses here since we never r/w eeprom in IRQ
++** Note: this function sleeps only because of GFP_KERNEL alloc
++*/
++#ifdef UNUSED
++int
++acxmem_s_write_eeprom(acx_device_t *adev, u32 addr, u32 len, const u8 *charbuf)
++{
++ u8 *data_verify = NULL;
++ unsigned long flags;
++ int count, i;
++ int result = NOT_OK;
++ u16 gpio_orig;
++
++ printk("acx: WARNING! I would write to EEPROM now. "
++ "Since I really DON'T want to unless you know "
++ "what you're doing (THIS CODE WILL PROBABLY "
++ "NOT WORK YET!), I will abort that now. And "
++ "definitely make sure to make a "
++ "/proc/driver/acx_wlan0_eeprom backup copy first!!! "
++ "(the EEPROM content includes the PCI config header!! "
++ "If you kill important stuff, then you WILL "
++ "get in trouble and people DID get in trouble already)\n");
++ return OK;
++
++ FN_ENTER;
++
++ data_verify = kmalloc(len, GFP_KERNEL);
++ if (!data_verify) {
++ goto end;
++ }
++
++ /* first we need to enable the OE (EEPROM Output Enable) GPIO line
++ * to be able to write to the EEPROM.
++ * NOTE: an EEPROM writing success has been reported,
++ * but you probably have to modify GPIO_OUT, too,
++ * and you probably need to activate a different GPIO
++ * line instead! */
++ gpio_orig = read_reg16(adev, IO_ACX_GPIO_OE);
++ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig & ~1);
++ write_flush(adev);
++
++ /* ok, now start writing the data out */
++ for (i = 0; i < len; i++) {
++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i);
++ write_reg32(adev, IO_ACX_EEPROM_DATA, *(charbuf + i));
++ write_flush(adev);
++ write_reg32(adev, IO_ACX_EEPROM_CTL, 1);
++
++ count = 0xffff;
++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
++ if (unlikely(!--count)) {
++ printk("WARNING, DANGER!!! "
++ "Timeout waiting for EEPROM write\n");
++ goto end;
++ }
++ cpu_relax();
++ }
++ }
++
++ /* disable EEPROM writing */
++ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig);
++ write_flush(adev);
++
++ /* now start a verification run */
++ for (i = 0; i < len; i++) {
++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i);
++ write_flush(adev);
++ write_reg32(adev, IO_ACX_EEPROM_CTL, 2);
++
++ count = 0xffff;
++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
++ if (unlikely(!--count)) {
++ printk("timeout waiting for EEPROM read\n");
++ goto end;
++ }
++ cpu_relax();
++ }
++
++ data_verify[i] = read_reg16(adev, IO_ACX_EEPROM_DATA);
++ }
++
++ if (0 == memcmp(charbuf, data_verify, len))
++ result = OK; /* read data matches, success */
++
++end:
++ kfree(data_verify);
++ FN_EXIT1(result);
++ return result;
++}
++#endif /* UNUSED */
++
++
++/***********************************************************************
++** acxmem_s_read_phy_reg
++**
++** Messing with rx/tx disabling and enabling here
++** (write_reg32(adev, IO_ACX_ENABLE, 0b000000xx)) kills traffic
++*/
++int
++acxmem_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf)
++{
++ int result = NOT_OK;
++ int count;
++
++ FN_ENTER;
++
++ write_reg32(adev, IO_ACX_PHY_ADDR, reg);
++ write_flush(adev);
++ write_reg32(adev, IO_ACX_PHY_CTL, 2);
++
++ count = 0xffff;
++ while (read_reg32(adev, IO_ACX_PHY_CTL)) {
++ /* scheduling away instead of CPU burning loop
++ * doesn't seem to work here at all:
++ * awful delay, sometimes also failure.
++ * Doesn't matter anyway (only small delay). */
++ if (unlikely(!--count)) {
++ printk("%s: timeout waiting for phy read\n",
++ adev->ndev->name);
++ *charbuf = 0;
++ goto fail;
++ }
++ cpu_relax();
++ }
++
++ log(L_DEBUG, "count was %u\n", count);
++ *charbuf = read_reg8(adev, IO_ACX_PHY_DATA);
++
++ log(L_DEBUG, "radio PHY at 0x%04X = 0x%02X\n", *charbuf, reg);
++ result = OK;
++ goto fail; /* silence compiler warning */
++fail:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++*/
++int
++acxmem_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value)
++{
++ int count;
++ FN_ENTER;
++
++ /* mprusko said that 32bit accesses result in distorted sensitivity
++ * on his card. Unconfirmed, looks like it's not true (most likely since we
++ * now properly flush writes). */
++ write_reg32(adev, IO_ACX_PHY_DATA, value);
++ write_reg32(adev, IO_ACX_PHY_ADDR, reg);
++ write_flush(adev);
++ write_reg32(adev, IO_ACX_PHY_CTL, 1);
++ write_flush(adev);
++
++ count = 0xffff;
++ while (read_reg32(adev, IO_ACX_PHY_CTL)) {
++ /* scheduling away instead of CPU burning loop
++ * doesn't seem to work here at all:
++ * awful delay, sometimes also failure.
++ * Doesn't matter anyway (only small delay). */
++ if (unlikely(!--count)) {
++ printk("%s: timeout waiting for phy read\n",
++ adev->ndev->name);
++ goto fail;
++ }
++ cpu_relax();
++ }
++
++ log(L_DEBUG, "radio PHY write 0x%02X at 0x%04X\n", value, reg);
++ fail:
++ FN_EXIT1(OK);
++ return OK;
++}
++
++
++#define NO_AUTO_INCREMENT 1
++
++/***********************************************************************
++** acxmem_s_write_fw
++**
++** Write the firmware image into the card.
++**
++** Arguments:
++** adev wlan device structure
++** fw_image firmware image.
++**
++** Returns:
++** 1 firmware image corrupted
++** 0 success
++*/
++static int
++acxmem_s_write_fw(acx_device_t *adev, const firmware_image_t *fw_image, u32 offset)
++{
++ int len, size, checkMismatch = -1;
++ u32 sum, v32, tmp, id;
++ /* we skip the first four bytes which contain the control sum */
++ const u8 *p = (u8*)fw_image + 4;
++
++ /* start the image checksum by adding the image size value */
++ sum = p[0]+p[1]+p[2]+p[3];
++ p += 4;
++
++#ifdef NOPE
++#if NO_AUTO_INCREMENT
++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */
++#else
++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */
++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */
++ write_flush(adev);
++#endif
++#endif
++ len = 0;
++ size = le32_to_cpu(fw_image->size) & (~3);
++
++ while (likely(len < size)) {
++ v32 = be32_to_cpu(*(u32*)p);
++ sum += p[0]+p[1]+p[2]+p[3];
++ p += 4;
++ len += 4;
++
++#ifdef NOPE
++#if NO_AUTO_INCREMENT
++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4);
++ write_flush(adev);
++#endif
++ write_reg32(adev, IO_ACX_SLV_MEM_DATA, v32);
++ write_flush(adev);
++#endif
++ write_slavemem32 (adev, offset + len - 4, v32);
++
++ id = read_id_register (adev);
++
++ /*
++ * check the data written
++ */
++ tmp = read_slavemem32 (adev, offset + len - 4);
++ if (checkMismatch && (tmp != v32)) {
++ printk ("first data mismatch at 0x%08x good 0x%08x bad 0x%08x id 0x%08x\n",
++ offset + len - 4, v32, tmp, id);
++ checkMismatch = 0;
++ }
++ }
++ log(L_DEBUG, "firmware written, size:%d sum1:%x sum2:%x\n",
++ size, sum, le32_to_cpu(fw_image->chksum));
++
++ /* compare our checksum with the stored image checksum */
++ return (sum != le32_to_cpu(fw_image->chksum));
++}
++
++
++/***********************************************************************
++** acxmem_s_validate_fw
++**
++** Compare the firmware image given with
++** the firmware image written into the card.
++**
++** Arguments:
++** adev wlan device structure
++** fw_image firmware image.
++**
++** Returns:
++** NOT_OK firmware image corrupted or not correctly written
++** OK success
++*/
++static int
++acxmem_s_validate_fw(acx_device_t *adev, const firmware_image_t *fw_image,
++ u32 offset)
++{
++ u32 sum, v32, w32;
++ int len, size;
++ int result = OK;
++ /* we skip the first four bytes which contain the control sum */
++ const u8 *p = (u8*)fw_image + 4;
++
++ /* start the image checksum by adding the image size value */
++ sum = p[0]+p[1]+p[2]+p[3];
++ p += 4;
++
++ write_reg32(adev, IO_ACX_SLV_END_CTL, 0);
++
++#if NO_AUTO_INCREMENT
++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */
++#else
++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */
++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */
++#endif
++
++ len = 0;
++ size = le32_to_cpu(fw_image->size) & (~3);
++
++ while (likely(len < size)) {
++ v32 = be32_to_cpu(*(u32*)p);
++ p += 4;
++ len += 4;
++
++#ifdef NOPE
++#if NO_AUTO_INCREMENT
++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4);
++#endif
++ udelay(10);
++ w32 = read_reg32(adev, IO_ACX_SLV_MEM_DATA);
++#endif
++ w32 = read_slavemem32 (adev, offset + len - 4);
++
++ if (unlikely(w32 != v32)) {
++ printk("acx: FATAL: firmware upload: "
++ "data parts at offset %d don't match\n(0x%08X vs. 0x%08X)!\n"
++ "I/O timing issues or defective memory, with DWL-xx0+? "
++ "ACX_IO_WIDTH=16 may help. Please report\n",
++ len, v32, w32);
++ result = NOT_OK;
++ break;
++ }
++
++ sum += (u8)w32 + (u8)(w32>>8) + (u8)(w32>>16) + (u8)(w32>>24);
++ }
++
++ /* sum control verification */
++ if (result != NOT_OK) {
++ if (sum != le32_to_cpu(fw_image->chksum)) {
++ printk("acx: FATAL: firmware upload: "
++ "checksums don't match!\n");
++ result = NOT_OK;
++ }
++ }
++
++ return result;
++}
++
++
++/***********************************************************************
++** acxmem_s_upload_fw
++**
++** Called from acx_reset_dev
++*/
++static int
++acxmem_s_upload_fw(acx_device_t *adev)
++{
++ firmware_image_t *fw_image = NULL;
++ int res = NOT_OK;
++ int try;
++ u32 file_size;
++ char *filename = "WLANGEN.BIN";
++#ifdef PATCH_AROUND_BAD_SPOTS
++ u32 offset;
++ int i;
++ /*
++ * arm-linux-objdump -d patch.bin, or
++ * od -Ax -t x4 patch.bin after finding the bounds
++ * of the .text section with arm-linux-objdump -s patch.bin
++ */
++ u32 patch[] = {
++ 0xe584c030, 0xe59fc008,
++ 0xe92d1000, 0xe59fc004, 0xe8bd8000, 0x0000080c,
++ 0x0000aa68, 0x605a2200, 0x2c0a689c, 0x2414d80a,
++ 0x2f00689f, 0x1c27d007, 0x06241e7c, 0x2f000e24,
++ 0xe000d1f6, 0x602e6018, 0x23036468, 0x480203db,
++ 0x60ca6003, 0xbdf0750a, 0xffff0808
++ };
++#endif
++
++ FN_ENTER;
++ /* No combined image; tell common we need the radio firmware, too */
++ adev->need_radio_fw = 1;
++
++ fw_image = acx_s_read_fw(adev->dev, filename, &file_size);
++ if (!fw_image) {
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++ }
++
++ for (try = 1; try <= 5; try++) {
++ res = acxmem_s_write_fw(adev, fw_image, 0);
++ log(L_DEBUG|L_INIT, "acx_write_fw (main): %d\n", res);
++ if (OK == res) {
++ res = acxmem_s_validate_fw(adev, fw_image, 0);
++ log(L_DEBUG|L_INIT, "acx_validate_fw "
++ "(main): %d\n", res);
++ }
++
++ if (OK == res) {
++ SET_BIT(adev->dev_state_mask, ACX_STATE_FW_LOADED);
++ break;
++ }
++ printk("acx: firmware upload attempt #%d FAILED, "
++ "retrying...\n", try);
++ acx_s_msleep(1000); /* better wait for a while... */
++ }
++
++#ifdef PATCH_AROUND_BAD_SPOTS
++ /*
++ * Only want to do this if the firmware is exactly what we expect for an
++ * iPaq 4700; otherwise, bad things would ensue.
++ */
++ if ((HX4700_FIRMWARE_CHECKSUM == fw_image->chksum) ||
++ (HX4700_ALTERNATE_FIRMWARE_CHECKSUM == fw_image->chksum)) {
++ /*
++ * Put the patch after the main firmware image. 0x950c contains
++ * the ACX's idea of the end of the firmware. Use that location to
++ * load ours (which depends on that location being 0xab58) then
++ * update that location to point to after ours.
++ */
++
++ offset = read_slavemem32 (adev, 0x950c);
++
++ log (L_DEBUG, "acx: patching in at 0x%04x\n", offset);
++
++ for (i = 0; i < sizeof(patch) / sizeof(patch[0]); i++) {
++ write_slavemem32 (adev, offset, patch[i]);
++ offset += sizeof(u32);
++ }
++
++ /*
++ * Patch the instruction at 0x0804 to branch to our ARM patch at 0xab58
++ */
++ write_slavemem32 (adev, 0x0804, 0xea000000 + (0xab58-0x0804-8)/4);
++
++ /*
++ * Patch the instructions at 0x1f40 to branch to our Thumb patch at 0xab74
++ *
++ * 4a00 ldr r2, [pc, #0]
++ * 4710 bx r2
++ * .data 0xab74+1
++ */
++ write_slavemem32 (adev, 0x1f40, 0x47104a00);
++ write_slavemem32 (adev, 0x1f44, 0x0000ab74+1);
++
++ /*
++ * Bump the end of the firmware up to beyond our patch.
++ */
++ write_slavemem32 (adev, 0x950c, offset);
++
++ }
++#endif
++
++ vfree(fw_image);
++
++ FN_EXIT1(res);
++ return res;
++}
++
++
++/***********************************************************************
++** acxmem_s_upload_radio
++**
++** Uploads the appropriate radio module firmware into the card.
++*/
++int
++acxmem_s_upload_radio(acx_device_t *adev)
++{
++ acx_ie_memmap_t mm;
++ firmware_image_t *radio_image;
++ acx_cmd_radioinit_t radioinit;
++ int res = NOT_OK;
++ int try;
++ u32 offset;
++ u32 size;
++ char filename[sizeof("RADIONN.BIN")];
++
++ if (!adev->need_radio_fw) return OK;
++
++ FN_ENTER;
++
++ acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP);
++ offset = le32_to_cpu(mm.CodeEnd);
++
++ snprintf(filename, sizeof(filename), "RADIO%02x.BIN",
++ adev->radio_type);
++ radio_image = acx_s_read_fw(adev->dev, filename, &size);
++ if (!radio_image) {
++ printk("acx: can't load radio module '%s'\n", filename);
++ goto fail;
++ }
++
++ acx_s_issue_cmd(adev, ACX1xx_CMD_SLEEP, NULL, 0);
++
++ for (try = 1; try <= 5; try++) {
++ res = acxmem_s_write_fw(adev, radio_image, offset);
++ log(L_DEBUG|L_INIT, "acx_write_fw (radio): %d\n", res);
++ if (OK == res) {
++ res = acxmem_s_validate_fw(adev, radio_image, offset);
++ log(L_DEBUG|L_INIT, "acx_validate_fw (radio): %d\n", res);
++ }
++
++ if (OK == res)
++ break;
++ printk("acx: radio firmware upload attempt #%d FAILED, "
++ "retrying...\n", try);
++ acx_s_msleep(1000); /* better wait for a while... */
++ }
++
++ acx_s_issue_cmd(adev, ACX1xx_CMD_WAKE, NULL, 0);
++ radioinit.offset = cpu_to_le32(offset);
++
++ /* no endian conversion needed, remains in card CPU area: */
++ radioinit.len = radio_image->size;
++
++ vfree(radio_image);
++
++ if (OK != res)
++ goto fail;
++
++ /* will take a moment so let's have a big timeout */
++ acx_s_issue_cmd_timeo(adev, ACX1xx_CMD_RADIOINIT,
++ &radioinit, sizeof(radioinit), CMD_TIMEOUT_MS(1000));
++
++ res = acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP);
++
++fail:
++ FN_EXIT1(res);
++ return res;
++}
++
++/***********************************************************************
++** acxmem_l_reset_mac
++**
++** MAC will be reset
++** Call context: reset_dev
++*/
++static void
++acxmem_l_reset_mac(acx_device_t *adev)
++{
++ int count;
++ FN_ENTER;
++
++ /* halt eCPU */
++ set_regbits (adev, IO_ACX_ECPU_CTRL, 0x1);
++
++ /* now do soft reset of eCPU, set bit */
++ set_regbits (adev, IO_ACX_SOFT_RESET, 0x1);
++ log(L_DEBUG, "%s: enable soft reset...\n", __func__);
++
++ /* Windows driver sleeps here for a while with this sequence */
++ for (count = 0; count < 200; count++) {
++ udelay (50);
++ }
++
++ /* now clear bit again: deassert eCPU reset */
++ log(L_DEBUG, "%s: disable soft reset and go to init mode...\n", __func__);
++ clear_regbits (adev, IO_ACX_SOFT_RESET, 0x1);
++
++ /* now start a burst read from initial EEPROM */
++ set_regbits (adev, IO_ACX_EE_START, 0x1);
++
++ /*
++ * Windows driver sleeps here for a while with this sequence
++ */
++ for (count = 0; count < 200; count++) {
++ udelay (50);
++ }
++
++ /* Windows driver writes 0x10000 to register 0x808 here */
++
++ write_reg32 (adev, 0x808, 0x10000);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_s_verify_init
++*/
++static int
++acxmem_s_verify_init(acx_device_t *adev)
++{
++ int result = NOT_OK;
++ unsigned long timeout;
++
++ FN_ENTER;
++
++ timeout = jiffies + 2*HZ;
++ for (;;) {
++ u32 irqstat = read_reg32(adev, IO_ACX_IRQ_STATUS_NON_DES);
++ if ((irqstat != 0xFFFFFFFF) && (irqstat & HOST_INT_FCS_THRESHOLD)) {
++ result = OK;
++ write_reg32(adev, IO_ACX_IRQ_ACK, HOST_INT_FCS_THRESHOLD);
++ break;
++ }
++ if (time_after(jiffies, timeout))
++ break;
++ /* Init may take up to ~0.5 sec total */
++ acx_s_msleep(50);
++ }
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** A few low-level helpers
++**
++** Note: these functions are not protected by lock
++** and thus are never allowed to be called from IRQ.
++** Also they must not race with fw upload which uses same hw regs
++*/
++
++/***********************************************************************
++** acxmem_write_cmd_type_status
++*/
++
++static inline void
++acxmem_write_cmd_type_status(acx_device_t *adev, u16 type, u16 status)
++{
++ write_slavemem32 (adev, (u32) adev->cmd_area, type | (status << 16));
++ write_flush(adev);
++}
++
++
++/***********************************************************************
++** acxmem_read_cmd_type_status
++*/
++static u32
++acxmem_read_cmd_type_status(acx_device_t *adev)
++{
++ u32 cmd_type, cmd_status;
++
++ cmd_type = read_slavemem32 (adev, (u32) adev->cmd_area);
++
++ cmd_status = (cmd_type >> 16);
++ cmd_type = (u16)cmd_type;
++
++ log(L_CTL, "cmd_type:%04X cmd_status:%04X [%s]\n",
++ cmd_type, cmd_status,
++ acx_cmd_status_str(cmd_status));
++
++ return cmd_status;
++}
++
++
++/***********************************************************************
++** acxmem_s_reset_dev
++**
++** Arguments:
++** netdevice that contains the adev variable
++** Returns:
++** NOT_OK on fail
++** OK on success
++** Side effects:
++** device is hard reset
++** Call context:
++** acxmem_e_probe
++** Comment:
++** This resets the device using low level hardware calls
++** as well as uploads and verifies the firmware to the card
++*/
++
++static inline void
++init_mboxes(acx_device_t *adev)
++{
++ u32 cmd_offs, info_offs;
++
++ cmd_offs = read_reg32(adev, IO_ACX_CMD_MAILBOX_OFFS);
++ info_offs = read_reg32(adev, IO_ACX_INFO_MAILBOX_OFFS);
++ adev->cmd_area = (u8*) cmd_offs;
++ adev->info_area = (u8*) info_offs;
++ /*
++ log(L_DEBUG, "iobase2=%p\n"
++ */
++ log( L_DEBUG, "cmd_mbox_offset=%X cmd_area=%p\n"
++ "info_mbox_offset=%X info_area=%p\n",
++ cmd_offs, adev->cmd_area,
++ info_offs, adev->info_area);
++}
++
++
++static inline void
++read_eeprom_area(acx_device_t *adev)
++{
++#if ACX_DEBUG > 1
++ int offs;
++ u8 tmp;
++
++ for (offs = 0x8c; offs < 0xb9; offs++)
++ acxmem_read_eeprom_byte(adev, offs, &tmp);
++#endif
++}
++
++static int
++acxmem_s_reset_dev(acx_device_t *adev)
++{
++ const char* msg = "";
++ unsigned long flags;
++ int result = NOT_OK;
++ u16 hardware_info;
++ u16 ecpu_ctrl;
++ int count;
++ u32 tmp;
++
++ FN_ENTER;
++ /*
++ write_reg32 (adev, IO_ACX_SLV_MEM_CP, 0);
++ */
++ /* reset the device to make sure the eCPU is stopped
++ * to upload the firmware correctly */
++
++ acx_lock(adev, flags);
++
++ /* Windows driver does some funny things here */
++ /*
++ * clear bit 0x200 in register 0x2A0
++ */
++ clear_regbits (adev, 0x2A0, 0x200);
++
++ /*
++ * Set bit 0x200 in ACX_GPIO_OUT
++ */
++ set_regbits (adev, IO_ACX_GPIO_OUT, 0x200);
++
++ /*
++ * read register 0x900 until its value is 0x8400104C, sleeping
++ * in between reads if it's not immediate
++ */
++ tmp = read_reg32 (adev, REG_ACX_VENDOR_ID);
++ count = 500;
++ while (count-- && (tmp != ACX_VENDOR_ID)) {
++ mdelay (10);
++ tmp = read_reg32 (adev, REG_ACX_VENDOR_ID);
++ }
++
++ /* end what Windows driver does */
++
++ acxmem_l_reset_mac(adev);
++
++ ecpu_ctrl = read_reg32(adev, IO_ACX_ECPU_CTRL) & 1;
++ if (!ecpu_ctrl) {
++ msg = "eCPU is already running. ";
++ goto end_unlock;
++ }
++
++#ifdef WE_DONT_NEED_THAT_DO_WE
++ if (read_reg16(adev, IO_ACX_SOR_CFG) & 2) {
++ /* eCPU most likely means "embedded CPU" */
++ msg = "eCPU did not start after boot from flash. ";
++ goto end_unlock;
++ }
++
++ /* check sense on reset flags */
++ if (read_reg16(adev, IO_ACX_SOR_CFG) & 0x10) {
++ printk("%s: eCPU did not start after boot (SOR), "
++ "is this fatal?\n", adev->ndev->name);
++ }
++#endif
++ /* scan, if any, is stopped now, setting corresponding IRQ bit */
++ adev->irq_status |= HOST_INT_SCAN_COMPLETE;
++
++ acx_unlock(adev, flags);
++
++ /* need to know radio type before fw load */
++ /* Need to wait for arrival of this information in a loop,
++ * most probably since eCPU runs some init code from EEPROM
++ * (started burst read in reset_mac()) which also
++ * sets the radio type ID */
++
++ count = 0xffff;
++ do {
++ hardware_info = read_reg16(adev, IO_ACX_EEPROM_INFORMATION);
++ if (!--count) {
++ msg = "eCPU didn't indicate radio type";
++ goto end_fail;
++ }
++ cpu_relax();
++ } while (!(hardware_info & 0xff00)); /* radio type still zero? */
++ printk("ACX radio type 0x%02x\n", (hardware_info >> 8) & 0xff);
++ /* printk("DEBUG: count %d\n", count); */
++ adev->form_factor = hardware_info & 0xff;
++ adev->radio_type = hardware_info >> 8;
++
++ /* load the firmware */
++ if (OK != acxmem_s_upload_fw(adev))
++ goto end_fail;
++
++ /* acx_s_msleep(10); this one really shouldn't be required */
++
++ /* now start eCPU by clearing bit */
++ clear_regbits (adev, IO_ACX_ECPU_CTRL, 0x1);
++ log(L_DEBUG, "booted eCPU up and waiting for completion...\n");
++
++ /* Windows driver clears bit 0x200 in register 0x2A0 here */
++ clear_regbits (adev, 0x2A0, 0x200);
++
++ /* Windows driver sets bit 0x200 in ACX_GPIO_OUT here */
++ set_regbits (adev, IO_ACX_GPIO_OUT, 0x200);
++ /* wait for eCPU bootup */
++ if (OK != acxmem_s_verify_init(adev)) {
++ msg = "timeout waiting for eCPU. ";
++ goto end_fail;
++ }
++ log(L_DEBUG, "eCPU has woken up, card is ready to be configured\n");
++ init_mboxes(adev);
++ acxmem_write_cmd_type_status(adev, ACX1xx_CMD_RESET, 0);
++
++ /* test that EEPROM is readable */
++ read_eeprom_area(adev);
++
++ result = OK;
++ goto end;
++
++/* Finish error message. Indicate which function failed */
++end_unlock:
++ acx_unlock(adev, flags);
++end_fail:
++ printk("acx: %sreset_dev() FAILED\n", msg);
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acxmem_s_issue_cmd_timeo
++**
++** Sends command to fw, extract result
++**
++** NB: we do _not_ take lock inside, so be sure to not touch anything
++** which may interfere with IRQ handler operation
++**
++** TODO: busy wait is a bit silly, so:
++** 1) stop doing many iters - go to sleep after first
++** 2) go to waitqueue based approach: wait, not poll!
++*/
++#undef FUNC
++#define FUNC "issue_cmd"
++
++#if !ACX_DEBUG
++int
++acxmem_s_issue_cmd_timeo(
++ acx_device_t *adev,
++ unsigned int cmd,
++ void *buffer,
++ unsigned buflen,
++ unsigned cmd_timeout)
++{
++#else
++int
++acxmem_s_issue_cmd_timeo_debug(
++ acx_device_t *adev,
++ unsigned cmd,
++ void *buffer,
++ unsigned buflen,
++ unsigned cmd_timeout,
++ const char* cmdstr)
++{
++ unsigned long start = jiffies;
++#endif
++ const char *devname;
++ unsigned counter;
++ u16 irqtype;
++ int i, j;
++ u8 *p;
++ u16 cmd_status;
++ unsigned long timeout;
++
++ FN_ENTER;
++
++ devname = adev->ndev->name;
++ if (!devname || !devname[0] || devname[4]=='%')
++ devname = "acx";
++
++ log(L_CTL, FUNC"(cmd:%s,buflen:%u,timeout:%ums,type:0x%04X)\n",
++ cmdstr, buflen, cmd_timeout,
++ buffer ? le16_to_cpu(((acx_ie_generic_t *)buffer)->type) : -1);
++
++ if (!(adev->dev_state_mask & ACX_STATE_FW_LOADED)) {
++ printk("%s: "FUNC"(): firmware is not loaded yet, "
++ "cannot execute commands!\n", devname);
++ goto bad;
++ }
++
++ if ((acx_debug & L_DEBUG) && (cmd != ACX1xx_CMD_INTERROGATE)) {
++ printk("input buffer (len=%u):\n", buflen);
++ acx_dump_bytes(buffer, buflen);
++ }
++
++ /* wait for firmware to become idle for our command submission */
++ timeout = HZ/5;
++ counter = (timeout * 1000 / HZ) - 1; /* in ms */
++ timeout += jiffies;
++ do {
++ cmd_status = acxmem_read_cmd_type_status(adev);
++ /* Test for IDLE state */
++ if (!cmd_status)
++ break;
++ if (counter % 8 == 0) {
++ if (time_after(jiffies, timeout)) {
++ counter = 0;
++ break;
++ }
++ /* we waited 8 iterations, no luck. Sleep 8 ms */
++ acx_s_msleep(8);
++ }
++ } while (likely(--counter));
++
++ if (!counter) {
++ /* the card doesn't get idle, we're in trouble */
++ printk("%s: "FUNC"(): cmd_status is not IDLE: 0x%04X!=0\n",
++ devname, cmd_status);
++#if DUMP_IF_SLOW > 0
++ dump_acxmem (adev, 0, 0x10000);
++ panic ("not idle");
++#endif
++ goto bad;
++ } else if (counter < 190) { /* if waited >10ms... */
++ log(L_CTL|L_DEBUG, FUNC"(): waited for IDLE %dms. "
++ "Please report\n", 199 - counter);
++ }
++
++ /* now write the parameters of the command if needed */
++ if (buffer && buflen) {
++ /* if it's an INTERROGATE command, just pass the length
++ * of parameters to read, as data */
++#if CMD_DISCOVERY
++ if (cmd == ACX1xx_CMD_INTERROGATE)
++ memset_io(adev->cmd_area + 4, 0xAA, buflen);
++#endif
++ /*
++ * slave memory version
++ */
++ copy_to_slavemem (adev, (u32) (adev->cmd_area + 4), buffer,
++ (cmd == ACX1xx_CMD_INTERROGATE) ? 4 : buflen);
++ }
++ /* now write the actual command type */
++ acxmem_write_cmd_type_status(adev, cmd, 0);
++
++ /* clear CMD_COMPLETE bit. can be set only by IRQ handler: */
++ adev->irq_status &= ~HOST_INT_CMD_COMPLETE;
++
++ /* execute command */
++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_CMD);
++ write_flush(adev);
++
++ /* wait for firmware to process command */
++
++ /* Ensure nonzero and not too large timeout.
++ ** Also converts e.g. 100->99, 200->199
++ ** which is nice but not essential */
++ cmd_timeout = (cmd_timeout-1) | 1;
++ if (unlikely(cmd_timeout > 1199))
++ cmd_timeout = 1199;
++
++ /* we schedule away sometimes (timeout can be large) */
++ counter = cmd_timeout;
++ timeout = jiffies + cmd_timeout * HZ / 1000;
++ do {
++ if (!adev->irqs_active) { /* IRQ disabled: poll */
++ irqtype = read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES);
++ if (irqtype & HOST_INT_CMD_COMPLETE) {
++ write_reg16(adev, IO_ACX_IRQ_ACK,
++ HOST_INT_CMD_COMPLETE);
++ break;
++ }
++ } else { /* Wait when IRQ will set the bit */
++ irqtype = adev->irq_status;
++ if (irqtype & HOST_INT_CMD_COMPLETE)
++ break;
++ }
++
++ if (counter % 8 == 0) {
++ if (time_after(jiffies, timeout)) {
++ counter = 0;
++ break;
++ }
++ /* we waited 8 iterations, no luck. Sleep 8 ms */
++ acx_s_msleep(8);
++ }
++ } while (likely(--counter));
++
++ /* save state for debugging */
++ cmd_status = acxmem_read_cmd_type_status(adev);
++
++ /* put the card in IDLE state */
++ acxmem_write_cmd_type_status(adev, ACX1xx_CMD_RESET, 0);
++
++ if (!counter) { /* timed out! */
++ printk("%s: "FUNC"(): timed out %s for CMD_COMPLETE. "
++ "irq bits:0x%04X irq_status:0x%04X timeout:%dms "
++ "cmd_status:%d (%s)\n",
++ devname, (adev->irqs_active) ? "waiting" : "polling",
++ irqtype, adev->irq_status, cmd_timeout,
++ cmd_status, acx_cmd_status_str(cmd_status));
++ printk("%s: "FUNC"(): device irq status 0x%04x\n",
++ devname, read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES));
++ printk("%s: "FUNC"(): IO_ACX_IRQ_MASK 0x%04x IO_ACX_FEMR 0x%04x\n",
++ devname,
++ read_reg16 (adev, IO_ACX_IRQ_MASK),
++ read_reg16 (adev, IO_ACX_FEMR));
++ if (read_reg16 (adev, IO_ACX_IRQ_MASK) == 0xffff) {
++ printk ("acxmem: firmware probably hosed - reloading\n");
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
++ {
++ pm_message_t state;
++ acxmem_e_suspend (resume_pdev, state);
++ }
++#else
++ acxmem_e_suspend (adev->dev, 0);
++#endif
++ {
++ struct work_struct *notused;
++ fw_resumer (notused);
++ }
++ }
++
++ goto bad;
++ } else if (cmd_timeout - counter > 30) { /* if waited >30ms... */
++ log(L_CTL|L_DEBUG, FUNC"(): %s for CMD_COMPLETE %dms. "
++ "count:%d. Please report\n",
++ (adev->irqs_active) ? "waited" : "polled",
++ cmd_timeout - counter, counter);
++ }
++
++ if (1 != cmd_status) { /* it is not a 'Success' */
++ printk("%s: "FUNC"(): cmd_status is not SUCCESS: %d (%s). "
++ "Took %dms of %d\n",
++ devname, cmd_status, acx_cmd_status_str(cmd_status),
++ cmd_timeout - counter, cmd_timeout);
++ /* zero out result buffer
++ * WARNING: this will trash stack in case of illegally large input
++ * length! */
++ if (buflen > 388) {
++ /*
++ * 388 is maximum command length
++ */
++ printk ("invalid length 0x%08x\n", buflen);
++ buflen = 388;
++ }
++ p = (u8 *) buffer;
++ for (i = 0; i < buflen; i+= 16) {
++ printk ("%04x:", i);
++ for (j = 0; (j < 16) && (i+j < buflen); j++) {
++ printk (" %02x", *p++);
++ }
++ printk ("\n");
++ }
++
++ if (buffer && buflen)
++ memset(buffer, 0, buflen);
++ goto bad;
++ }
++
++ /* read in result parameters if needed */
++ if (buffer && buflen && (cmd == ACX1xx_CMD_INTERROGATE)) {
++ copy_from_slavemem (adev, buffer, (u32) (adev->cmd_area + 4), buflen);
++ if (acx_debug & L_DEBUG) {
++ printk("output buffer (len=%u): ", buflen);
++ acx_dump_bytes(buffer, buflen);
++ }
++ }
++
++/* ok: */
++ log(L_CTL, FUNC"(%s): took %ld jiffies to complete\n",
++ cmdstr, jiffies - start);
++ FN_EXIT1(OK);
++ return OK;
++
++bad:
++ /* Give enough info so that callers can avoid
++ ** printing their own diagnostic messages */
++#if ACX_DEBUG
++ printk("%s: "FUNC"(cmd:%s) FAILED\n", devname, cmdstr);
++#else
++ printk("%s: "FUNC"(cmd:0x%04X) FAILED\n", devname, cmd);
++#endif
++ dump_stack();
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***********************************************************************
++*/
++#if defined(NONESSENTIAL_FEATURES)
++typedef struct device_id {
++ unsigned char id[6];
++ char *descr;
++ char *type;
++} device_id_t;
++
++static const device_id_t
++device_ids[] =
++{
++ {
++ {'G', 'l', 'o', 'b', 'a', 'l'},
++ NULL,
++ NULL,
++ },
++ {
++ {0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
++ "uninitialized",
++ "SpeedStream SS1021 or Gigafast WF721-AEX"
++ },
++ {
++ {0x80, 0x81, 0x82, 0x83, 0x84, 0x85},
++ "non-standard",
++ "DrayTek Vigor 520"
++ },
++ {
++ {'?', '?', '?', '?', '?', '?'},
++ "non-standard",
++ "Level One WPC-0200"
++ },
++ {
++ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
++ "empty",
++ "DWL-650+ variant"
++ }
++};
++
++static void
++acx_show_card_eeprom_id(acx_device_t *adev)
++{
++ unsigned char buffer[CARD_EEPROM_ID_SIZE];
++ int i;
++
++ memset(&buffer, 0, CARD_EEPROM_ID_SIZE);
++ /* use direct EEPROM access */
++ for (i = 0; i < CARD_EEPROM_ID_SIZE; i++) {
++ if (OK != acxmem_read_eeprom_byte(adev,
++ ACX100_EEPROM_ID_OFFSET + i,
++ &buffer[i])) {
++ printk("acx: reading EEPROM FAILED\n");
++ break;
++ }
++ }
++
++ for (i = 0; i < VEC_SIZE(device_ids); i++) {
++ if (!memcmp(&buffer, device_ids[i].id, CARD_EEPROM_ID_SIZE)) {
++ if (device_ids[i].descr) {
++ printk("acx: EEPROM card ID string check "
++ "found %s card ID: is this %s?\n",
++ device_ids[i].descr, device_ids[i].type);
++ }
++ break;
++ }
++ }
++ if (i == VEC_SIZE(device_ids)) {
++ printk("acx: EEPROM card ID string check found "
++ "unknown card: expected 'Global', got '%.*s\'. "
++ "Please report\n", CARD_EEPROM_ID_SIZE, buffer);
++ }
++}
++#endif /* NONESSENTIAL_FEATURES */
++
++/***********************************************************************
++** acxmem_free_desc_queues
++**
++** Releases the queues that have been allocated, the
++** others have been initialised to NULL so this
++** function can be used if only part of the queues were allocated.
++*/
++
++void
++acxmem_free_desc_queues(acx_device_t *adev)
++{
++#define ACX_FREE_QUEUE(size, ptr, phyaddr) \
++ if (ptr) { \
++ kfree(ptr); \
++ ptr = NULL; \
++ size = 0; \
++ }
++
++ FN_ENTER;
++
++ ACX_FREE_QUEUE(adev->txhostdesc_area_size, adev->txhostdesc_start, adev->txhostdesc_startphy);
++ ACX_FREE_QUEUE(adev->txbuf_area_size, adev->txbuf_start, adev->txbuf_startphy);
++
++ adev->txdesc_start = NULL;
++
++ ACX_FREE_QUEUE(adev->rxhostdesc_area_size, adev->rxhostdesc_start, adev->rxhostdesc_startphy);
++ ACX_FREE_QUEUE(adev->rxbuf_area_size, adev->rxbuf_start, adev->rxbuf_startphy);
++
++ adev->rxdesc_start = NULL;
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_s_delete_dma_regions
++*/
++static void
++acxmem_s_delete_dma_regions(acx_device_t *adev)
++{
++ unsigned long flags;
++
++ FN_ENTER;
++ /* disable radio Tx/Rx. Shouldn't we use the firmware commands
++ * here instead? Or are we that much down the road that it's no
++ * longer possible here? */
++ /*
++ * slave memory interface really doesn't like this.
++ */
++ /*
++ write_reg16(adev, IO_ACX_ENABLE, 0);
++ */
++
++ acx_s_msleep(100);
++
++ acx_lock(adev, flags);
++ acxmem_free_desc_queues(adev);
++ acx_unlock(adev, flags);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_e_probe
++**
++** Probe routine called when a PCI device w/ matching ID is found.
++** Here's the sequence:
++** - Allocate the PCI resources.
++** - Read the PCMCIA attribute memory to make sure we have a WLAN card
++** - Reset the MAC
++** - Initialize the dev and wlan data
++** - Initialize the MAC
++**
++** pdev - ptr to pci device structure containing info about pci configuration
++** id - ptr to the device id entry that matched this device
++*/
++static const u16
++IO_ACX100[] =
++{
++ 0x0000, /* IO_ACX_SOFT_RESET */
++
++ 0x0014, /* IO_ACX_SLV_MEM_ADDR */
++ 0x0018, /* IO_ACX_SLV_MEM_DATA */
++ 0x001c, /* IO_ACX_SLV_MEM_CTL */
++ 0x0020, /* IO_ACX_SLV_END_CTL */
++
++ 0x0034, /* IO_ACX_FEMR */
++
++ 0x007c, /* IO_ACX_INT_TRIG */
++ 0x0098, /* IO_ACX_IRQ_MASK */
++ 0x00a4, /* IO_ACX_IRQ_STATUS_NON_DES */
++ 0x00a8, /* IO_ACX_IRQ_STATUS_CLEAR */
++ 0x00ac, /* IO_ACX_IRQ_ACK */
++ 0x00b0, /* IO_ACX_HINT_TRIG */
++
++ 0x0104, /* IO_ACX_ENABLE */
++
++ 0x0250, /* IO_ACX_EEPROM_CTL */
++ 0x0254, /* IO_ACX_EEPROM_ADDR */
++ 0x0258, /* IO_ACX_EEPROM_DATA */
++ 0x025c, /* IO_ACX_EEPROM_CFG */
++
++ 0x0268, /* IO_ACX_PHY_ADDR */
++ 0x026c, /* IO_ACX_PHY_DATA */
++ 0x0270, /* IO_ACX_PHY_CTL */
++
++ 0x0290, /* IO_ACX_GPIO_OE */
++
++ 0x0298, /* IO_ACX_GPIO_OUT */
++
++ 0x02a4, /* IO_ACX_CMD_MAILBOX_OFFS */
++ 0x02a8, /* IO_ACX_INFO_MAILBOX_OFFS */
++ 0x02ac, /* IO_ACX_EEPROM_INFORMATION */
++
++ 0x02d0, /* IO_ACX_EE_START */
++ 0x02d4, /* IO_ACX_SOR_CFG */
++ 0x02d8 /* IO_ACX_ECPU_CTRL */
++};
++
++static const u16
++IO_ACX111[] =
++{
++ 0x0000, /* IO_ACX_SOFT_RESET */
++
++ 0x0014, /* IO_ACX_SLV_MEM_ADDR */
++ 0x0018, /* IO_ACX_SLV_MEM_DATA */
++ 0x001c, /* IO_ACX_SLV_MEM_CTL */
++ 0x0020, /* IO_ACX_SLV_MEM_CP */
++
++ 0x0034, /* IO_ACX_FEMR */
++
++ 0x00b4, /* IO_ACX_INT_TRIG */
++ 0x00d4, /* IO_ACX_IRQ_MASK */
++ /* we do mean NON_DES (0xf0), not NON_DES_MASK which is at 0xe0: */
++ 0x00f0, /* IO_ACX_IRQ_STATUS_NON_DES */
++ 0x00e4, /* IO_ACX_IRQ_STATUS_CLEAR */
++ 0x00e8, /* IO_ACX_IRQ_ACK */
++ 0x00ec, /* IO_ACX_HINT_TRIG */
++
++ 0x01d0, /* IO_ACX_ENABLE */
++
++ 0x0338, /* IO_ACX_EEPROM_CTL */
++ 0x033c, /* IO_ACX_EEPROM_ADDR */
++ 0x0340, /* IO_ACX_EEPROM_DATA */
++ 0x0344, /* IO_ACX_EEPROM_CFG */
++
++ 0x0350, /* IO_ACX_PHY_ADDR */
++ 0x0354, /* IO_ACX_PHY_DATA */
++ 0x0358, /* IO_ACX_PHY_CTL */
++
++ 0x0374, /* IO_ACX_GPIO_OE */
++
++ 0x037c, /* IO_ACX_GPIO_OUT */
++
++ 0x0388, /* IO_ACX_CMD_MAILBOX_OFFS */
++ 0x038c, /* IO_ACX_INFO_MAILBOX_OFFS */
++ 0x0390, /* IO_ACX_EEPROM_INFORMATION */
++
++ 0x0100, /* IO_ACX_EE_START */
++ 0x0104, /* IO_ACX_SOR_CFG */
++ 0x0108, /* IO_ACX_ECPU_CTRL */
++};
++
++static void
++dummy_netdev_init(struct net_device *ndev) {}
++
++/*
++ * Most of the acx specific pieces of hardware reset.
++ */
++static int
++acxmem_complete_hw_reset (acx_device_t *adev)
++{
++ acx111_ie_configoption_t co;
++
++ /* NB: read_reg() reads may return bogus data before reset_dev(),
++ * since the firmware which directly controls large parts of the I/O
++ * registers isn't initialized yet.
++ * acx100 seems to be more affected than acx111 */
++ if (OK != acxmem_s_reset_dev (adev))
++ return -1;
++
++ if (IS_ACX100(adev)) {
++ /* ACX100: configopt struct in cmd mailbox - directly after reset */
++ copy_from_slavemem (adev, (u8*) &co, (u32) adev->cmd_area, sizeof (co));
++ }
++
++ if (OK != acx_s_init_mac(adev))
++ return -3;
++
++ if (IS_ACX111(adev)) {
++ /* ACX111: configopt struct needs to be queried after full init */
++ acx_s_interrogate(adev, &co, ACX111_IE_CONFIG_OPTIONS);
++ }
++
++ /*
++ * Set up transmit buffer administration
++ */
++ init_acx_txbuf (adev);
++
++ /*
++ * Windows driver writes 0x01000000 to register 0x288, RADIO_CTL, if the form factor
++ * is 3. It also write protects the EEPROM by writing 1<<9 to GPIO_OUT
++ */
++ if (adev->form_factor == 3) {
++ set_regbits (adev, 0x288, 0x01000000);
++ set_regbits (adev, 0x298, 1<<9);
++ }
++
++/* TODO: merge them into one function, they are called just once and are the same for pci & usb */
++ if (OK != acxmem_read_eeprom_byte(adev, 0x05, &adev->eeprom_version))
++ return -2;
++
++ acx_s_parse_configoption(adev, &co);
++ acx_s_get_firmware_version(adev); /* needs to be after acx_s_init_mac() */
++ acx_display_hardware_details(adev);
++
++ return 0;
++}
++
++static int __devinit
++acxmem_e_probe(struct platform_device *pdev)
++{
++ struct acx_hardware_data *hwdata = pdev->dev.platform_data;
++ acx_device_t *adev = NULL;
++ struct net_device *ndev = NULL;
++ const char *chip_name;
++ int result = -EIO;
++ int err;
++ int i;
++ unsigned long addr_size=0;
++ u8 chip_type;
++
++ FN_ENTER;
++ (void) hwdata->start_hw();
++
++ /* FIXME: prism54 calls pci_set_mwi() here,
++ * should we do/support the same? */
++
++ /* chiptype is u8 but id->driver_data is ulong
++ ** Works for now (possible values are 1 and 2) */
++ chip_type = CHIPTYPE_ACX100;
++ /* acx100 and acx111 have different PCI memory regions */
++ if (chip_type == CHIPTYPE_ACX100) {
++ chip_name = "ACX100";
++ } else if (chip_type == CHIPTYPE_ACX111) {
++ chip_name = "ACX111";
++ } else {
++ printk("acx: unknown chip type 0x%04X\n", chip_type);
++ goto fail_unknown_chiptype;
++ }
++
++ printk("acx: found %s-based wireless network card\n", chip_name);
++ log(L_ANY, "initial debug setting is 0x%04X\n", acx_debug);
++
++ ndev = alloc_netdev(sizeof(*adev), "wlan%d", dummy_netdev_init);
++ /* (NB: memsets to 0 entire area) */
++ if (!ndev) {
++ printk("acx: no memory for netdevice struct\n");
++ goto fail_alloc_netdev;
++ }
++
++ platform_set_drvdata (pdev, ndev);
++
++ ether_setup(ndev);
++
++ /*
++ * use platform_data resources that were provided
++ */
++ ndev->irq = 0;
++ for (i=0; i<pdev->num_resources; i++) {
++ if (pdev->resource[i].flags == IORESOURCE_IRQ) {
++ ndev->irq = pdev->resource[i].start;
++ }
++ else if (pdev->resource[i].flags == IORESOURCE_MEM) {
++ ndev->base_addr = pdev->resource[i].start;
++ addr_size = pdev->resource[i].end - pdev->resource[i].start;
++ }
++ }
++ if (addr_size == 0 || ndev->irq == 0)
++ goto fail_hw_params;
++ ndev->open = &acxmem_e_open;
++ ndev->stop = &acxmem_e_close;
++ pdev->dev.release = &acxmem_e_release;
++ ndev->hard_start_xmit = &acx_i_start_xmit;
++ ndev->get_stats = &acx_e_get_stats;
++#if IW_HANDLER_VERSION <= 5
++ ndev->get_wireless_stats = &acx_e_get_wireless_stats;
++#endif
++ ndev->wireless_handlers = (struct iw_handler_def *)&acx_ioctl_handler_def;
++ ndev->set_multicast_list = &acxmem_i_set_multicast_list;
++ ndev->tx_timeout = &acxmem_i_tx_timeout;
++ ndev->change_mtu = &acx_e_change_mtu;
++ ndev->watchdog_timeo = 4 * HZ;
++
++ adev = ndev2adev(ndev);
++ spin_lock_init(&adev->lock); /* initial state: unlocked */
++ spin_lock_init(&adev->txbuf_lock);
++ /* We do not start with downed sem: we want PARANOID_LOCKING to work */
++ sema_init(&adev->sem, 1); /* initial state: 1 (upped) */
++ /* since nobody can see new netdev yet, we can as well
++ ** just _presume_ that we're under sem (instead of actually taking it): */
++ /* acx_sem_lock(adev); */
++ adev->dev = &pdev->dev;
++ adev->ndev = ndev;
++ adev->dev_type = DEVTYPE_MEM;
++ adev->chip_type = chip_type;
++ adev->chip_name = chip_name;
++ adev->io = (CHIPTYPE_ACX100 == chip_type) ? IO_ACX100 : IO_ACX111;
++ adev->membase = (volatile u32 *) ndev->base_addr;
++ adev->iobase = (volatile u32 *) ioremap_nocache (ndev->base_addr, addr_size);
++ /* to find crashes due to weird driver access
++ * to unconfigured interface (ifup) */
++ adev->mgmt_timer.function = (void (*)(unsigned long))0x0000dead;
++
++#if defined(NONESSENTIAL_FEATURES)
++ acx_show_card_eeprom_id(adev);
++#endif /* NONESSENTIAL_FEATURES */
++
++#ifdef SET_MODULE_OWNER
++ SET_MODULE_OWNER(ndev);
++#endif
++ SET_NETDEV_DEV(ndev, &pdev->dev);
++
++ log(L_IRQ|L_INIT, "using IRQ %d\n", ndev->irq);
++
++ /* ok, pci setup is finished, now start initializing the card */
++
++ if (OK != acxmem_complete_hw_reset (adev))
++ goto fail_reset;
++
++ /*
++ * Set up default things for most of the card settings.
++ */
++ acx_s_set_defaults(adev);
++
++ /* Register the card, AFTER everything else has been set up,
++ * since otherwise an ioctl could step on our feet due to
++ * firmware operations happening in parallel or uninitialized data */
++ err = register_netdev(ndev);
++ if (OK != err) {
++ printk("acx: register_netdev() FAILED: %d\n", err);
++ goto fail_register_netdev;
++ }
++
++ acx_proc_register_entries(ndev);
++
++ /* Now we have our device, so make sure the kernel doesn't try
++ * to send packets even though we're not associated to a network yet */
++ acx_stop_queue(ndev, "on probe");
++ acx_carrier_off(ndev, "on probe");
++
++ /*
++ * Set up a default monitor type so that poor combinations of initialization
++ * sequences in monitor mode don't end up destroying the hardware type.
++ */
++ adev->monitor_type = ARPHRD_ETHER;
++
++ /*
++ * Register to receive inetaddr notifier changes. This will allow us to
++ * catch if the user changes the MAC address of the interface.
++ */
++ register_netdevice_notifier(&acx_netdev_notifier);
++
++ /* after register_netdev() userspace may start working with dev
++ * (in particular, on other CPUs), we only need to up the sem */
++ /* acx_sem_unlock(adev); */
++
++ printk("acx "ACX_RELEASE": net device %s, driver compiled "
++ "against wireless extensions %d and Linux %s\n",
++ ndev->name, WIRELESS_EXT, UTS_RELEASE);
++
++#if CMD_DISCOVERY
++ great_inquisitor(adev);
++#endif
++
++ result = OK;
++ goto done;
++
++ /* error paths: undo everything in reverse order... */
++
++fail_register_netdev:
++
++ acxmem_s_delete_dma_regions(adev);
++
++fail_reset:
++fail_hw_params:
++ free_netdev(ndev);
++fail_alloc_netdev:
++fail_unknown_chiptype:
++
++
++done:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acxmem_e_remove
++**
++** Shut device down (if not hot unplugged)
++** and deallocate PCI resources for the acx chip.
++**
++** pdev - ptr to PCI device structure containing info about pci configuration
++*/
++static int __devexit
++acxmem_e_remove(struct platform_device *pdev)
++{
++ struct acx_hardware_data *hwdata = pdev->dev.platform_data;
++ struct net_device *ndev;
++ acx_device_t *adev;
++ unsigned long flags;
++
++ FN_ENTER;
++
++ ndev = (struct net_device*) platform_get_drvdata(pdev);
++ if (!ndev) {
++ log(L_DEBUG, "%s: card is unused. Skipping any release code\n",
++ __func__);
++ goto end;
++ }
++
++ adev = ndev2adev(ndev);
++
++ /* If device wasn't hot unplugged... */
++ if (adev_present(adev)) {
++
++ acx_sem_lock(adev);
++
++ /* disable both Tx and Rx to shut radio down properly */
++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0);
++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_RX, NULL, 0);
++
++#ifdef REDUNDANT
++ /* put the eCPU to sleep to save power
++ * Halting is not possible currently,
++ * since not supported by all firmware versions */
++ acx_s_issue_cmd(adev, ACX100_CMD_SLEEP, NULL, 0);
++#endif
++ acx_lock(adev, flags);
++
++ /* disable power LED to save power :-) */
++ log(L_INIT, "switching off power LED to save power\n");
++ acxmem_l_power_led(adev, 0);
++
++ /* stop our eCPU */
++ if (IS_ACX111(adev)) {
++ /* FIXME: does this actually keep halting the eCPU?
++ * I don't think so...
++ */
++ acxmem_l_reset_mac(adev);
++ } else {
++ u16 temp;
++
++ /* halt eCPU */
++ temp = read_reg16(adev, IO_ACX_ECPU_CTRL) | 0x1;
++ write_reg16(adev, IO_ACX_ECPU_CTRL, temp);
++ write_flush(adev);
++ }
++
++ acx_unlock(adev, flags);
++
++ acx_sem_unlock(adev);
++ }
++
++
++ /*
++ * Unregister the notifier chain
++ */
++ unregister_netdevice_notifier(&acx_netdev_notifier);
++
++ /* unregister the device to not let the kernel
++ * (e.g. ioctls) access a half-deconfigured device
++ * NB: this will cause acxmem_e_close() to be called,
++ * thus we shouldn't call it under sem! */
++ log(L_INIT, "removing device %s\n", ndev->name);
++ unregister_netdev(ndev);
++
++ /* unregister_netdev ensures that no references to us left.
++ * For paranoid reasons we continue to follow the rules */
++ acx_sem_lock(adev);
++
++ if (adev->dev_state_mask & ACX_STATE_IFACE_UP) {
++ acxmem_s_down(ndev);
++ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
++ }
++
++ acx_proc_unregister_entries(ndev);
++
++ acxmem_s_delete_dma_regions(adev);
++
++ /* finally, clean up PCI bus state */
++ if (adev->iobase) iounmap((void *)adev->iobase);
++
++ acx_sem_unlock(adev);
++
++ /* Free netdev (quite late,
++ * since otherwise we might get caught off-guard
++ * by a netdev timeout handler execution
++ * expecting to see a working dev...) */
++ free_netdev(ndev);
++
++ (void) hwdata->stop_hw();
++
++ printk ("e_remove done\n");
++end:
++ FN_EXIT0;
++
++ return 0;
++}
++
++
++/***********************************************************************
++** TODO: PM code needs to be fixed / debugged / tested.
++*/
++#ifdef CONFIG_PM
++static int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
++acxmem_e_suspend(struct platform_device *pdev, pm_message_t state)
++#else
++acxmem_e_suspend(struct device *pdev, u32 state)
++#endif
++{
++ struct net_device *ndev = platform_get_drvdata(pdev);
++ acx_device_t *adev;
++ struct acx_hardware_data *hwdata;
++
++ FN_ENTER;
++ printk("acx: suspend handler is experimental!\n");
++ printk("sus: dev %p\n", ndev);
++
++ if (!netif_running(ndev))
++ goto end;
++
++ adev = ndev2adev(ndev);
++ printk("sus: adev %p\n", adev);
++
++ hwdata = adev->dev->platform_data;
++
++ acx_sem_lock(adev);
++
++ netif_device_detach(ndev); /* this one cannot sleep */
++ acxmem_s_down(ndev);
++ /* down() does not set it to 0xffff, but here we really want that */
++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
++ write_reg16(adev, IO_ACX_FEMR, 0x0);
++ acxmem_s_delete_dma_regions(adev);
++
++ /*
++ * Turn the ACX chip off.
++ */
++ hwdata->stop_hw();
++
++ acx_sem_unlock(adev);
++end:
++ FN_EXIT0;
++ return OK;
++}
++
++
++
++static void
++fw_resumer(struct work_struct *notused)
++{
++ struct platform_device *pdev = resume_pdev;
++ struct net_device *ndev = platform_get_drvdata(pdev);
++ acx_device_t *adev;
++ struct acx_hardware_data *hwdata;
++
++ printk("acx: resume handler is experimental!\n");
++ printk("rsm: got dev %p\n", ndev);
++
++ if (!netif_running(ndev))
++ return;
++
++ adev = ndev2adev(ndev);
++ printk("rsm: got adev %p\n", adev);
++
++ acx_sem_lock(adev);
++
++ hwdata = adev->dev->platform_data;
++
++ /*
++ * Turn on the ACX.
++ */
++ hwdata->start_hw();
++
++ acxmem_complete_hw_reset (adev);
++
++ /*
++ * done by acx_s_set_defaults for initial startup
++ */
++ acxmem_set_interrupt_mask(adev);
++
++ printk ("rsm: bringing up interface\n");
++ SET_BIT (adev->set_mask, GETSET_ALL);
++ acxmem_s_up(ndev);
++ printk("rsm: acx up done\n");
++
++ /* now even reload all card parameters as they were before suspend,
++ * and possibly be back in the network again already :-)
++ */
++ /* - most settings updated in acxmem_s_up()
++ if (ACX_STATE_IFACE_UP & adev->dev_state_mask) {
++ adev->set_mask = GETSET_ALL;
++ acx_s_update_card_settings(adev);
++ printk("rsm: settings updated\n");
++ }
++ */
++ netif_device_attach(ndev);
++ printk("rsm: device attached\n");
++
++ acx_sem_unlock(adev);
++}
++
++DECLARE_WORK( fw_resume_work, fw_resumer );
++
++static int
++acxmem_e_resume(struct platform_device *pdev)
++{
++ FN_ENTER;
++
++ resume_pdev = pdev;
++ schedule_work( &fw_resume_work );
++
++ FN_EXIT0;
++ return OK;
++}
++#endif /* CONFIG_PM */
++
++
++/***********************************************************************
++** acxmem_s_up
++**
++** This function is called by acxmem_e_open (when ifconfig sets the device as up)
++**
++** Side effects:
++** - Enables on-card interrupt requests
++** - calls acx_s_start
++*/
++
++static void
++enable_acx_irq(acx_device_t *adev)
++{
++ FN_ENTER;
++ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask);
++ write_reg16(adev, IO_ACX_FEMR, 0x8000);
++ adev->irqs_active = 1;
++ FN_EXIT0;
++}
++
++static void
++acxmem_s_up(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++
++ FN_ENTER;
++
++ acx_lock(adev, flags);
++ enable_acx_irq(adev);
++ acx_unlock(adev, flags);
++
++ /* acx fw < 1.9.3.e has a hardware timer, and older drivers
++ ** used to use it. But we don't do that anymore, our OS
++ ** has reliable software timers */
++ init_timer(&adev->mgmt_timer);
++ adev->mgmt_timer.function = acx_i_timer;
++ adev->mgmt_timer.data = (unsigned long)adev;
++
++ /* Need to set ACX_STATE_IFACE_UP first, or else
++ ** timer won't be started by acx_set_status() */
++ SET_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ case ACX_MODE_2_STA:
++ /* actual scan cmd will happen in start() */
++ acx_set_status(adev, ACX_STATUS_1_SCANNING); break;
++ case ACX_MODE_3_AP:
++ case ACX_MODE_MONITOR:
++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED); break;
++ }
++
++ acx_s_start(adev);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_s_down
++**
++** This disables the netdevice
++**
++** Side effects:
++** - disables on-card interrupt request
++*/
++
++static void
++disable_acx_irq(acx_device_t *adev)
++{
++ FN_ENTER;
++
++ /* I guess mask is not 0xffff because acx100 won't signal
++ ** cmd completion then (needed for ifup).
++ ** Someone with acx100 please confirm */
++ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask_off);
++ write_reg16(adev, IO_ACX_FEMR, 0x0);
++ adev->irqs_active = 0;
++ FN_EXIT0;
++}
++
++static void
++acxmem_s_down(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++
++ FN_ENTER;
++
++ /* Disable IRQs first, so that IRQs cannot race with us */
++ /* then wait until interrupts have finished executing on other CPUs */
++ acx_lock(adev, flags);
++ disable_acx_irq(adev);
++ synchronize_irq(adev->pdev->irq);
++ acx_unlock(adev, flags);
++
++ /* we really don't want to have an asynchronous tasklet disturb us
++ ** after something vital for its job has been shut down, so
++ ** end all remaining work now.
++ **
++ ** NB: carrier_off (done by set_status below) would lead to
++ ** not yet fully understood deadlock in FLUSH_SCHEDULED_WORK().
++ ** That's why we do FLUSH first.
++ **
++ ** NB2: we have a bad locking bug here: FLUSH_SCHEDULED_WORK()
++ ** waits for acx_e_after_interrupt_task to complete if it is running
++ ** on another CPU, but acx_e_after_interrupt_task
++ ** will sleep on sem forever, because it is taken by us!
++ ** Work around that by temporary sem unlock.
++ ** This will fail miserably if we'll be hit by concurrent
++ ** iwconfig or something in between. TODO! */
++ acx_sem_unlock(adev);
++ FLUSH_SCHEDULED_WORK();
++ acx_sem_lock(adev);
++
++ /* This is possible:
++ ** FLUSH_SCHEDULED_WORK -> acx_e_after_interrupt_task ->
++ ** -> set_status(ASSOCIATED) -> wake_queue()
++ ** That's why we stop queue _after_ FLUSH_SCHEDULED_WORK
++ ** lock/unlock is just paranoia, maybe not needed */
++ acx_lock(adev, flags);
++ acx_stop_queue(ndev, "on ifdown");
++ acx_set_status(adev, ACX_STATUS_0_STOPPED);
++ acx_unlock(adev, flags);
++
++ /* kernel/timer.c says it's illegal to del_timer_sync()
++ ** a timer which restarts itself. We guarantee this cannot
++ ** ever happen because acx_i_timer() never does this if
++ ** status is ACX_STATUS_0_STOPPED */
++ del_timer_sync(&adev->mgmt_timer);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_e_open
++**
++** Called as a result of SIOCSIFFLAGS ioctl changing the flags bit IFF_UP
++** from clear to set. In other words: ifconfig up.
++**
++** Returns:
++** 0 success
++** >0 f/w reported error
++** <0 driver reported error
++*/
++static int
++acxmem_e_open(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int result = OK;
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++
++ acx_init_task_scheduler(adev);
++
++/* TODO: pci_set_power_state(pdev, PCI_D0); ? */
++
++ /* request shared IRQ handler */
++ if (request_irq(ndev->irq, acxmem_i_interrupt, SA_INTERRUPT, ndev->name, ndev)) {
++ printk("%s: request_irq FAILED\n", ndev->name);
++ result = -EAGAIN;
++ goto done;
++ }
++ set_irq_type (ndev->irq, IRQT_FALLING);
++ log(L_DEBUG|L_IRQ, "request_irq %d successful\n", ndev->irq);
++
++ /* ifup device */
++ acxmem_s_up(ndev);
++
++ /* We don't currently have to do anything else.
++ * The setup of the MAC should be subsequently completed via
++ * the mlme commands.
++ * Higher layers know we're ready from dev->start==1 and
++ * dev->tbusy==0. Our rx path knows to pass up received/
++ * frames because of dev->flags&IFF_UP is true.
++ */
++done:
++ acx_sem_unlock(adev);
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acxmem_e_close
++**
++** Called as a result of SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
++** from set to clear. I.e. called by "ifconfig DEV down"
++**
++** Returns:
++** 0 success
++** >0 f/w reported error
++** <0 driver reported error
++*/
++static int
++acxmem_e_close(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++
++ /* ifdown device */
++ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
++ if (netif_device_present(ndev)) {
++ acxmem_s_down(ndev);
++ }
++
++ /* disable all IRQs, release shared IRQ handler */
++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
++ write_reg16(adev, IO_ACX_FEMR, 0x0);
++ free_irq(ndev->irq, ndev);
++
++/* TODO: pci_set_power_state(pdev, PCI_D3hot); ? */
++
++ /* We currently don't have to do anything else.
++ * Higher layers know we're not ready from dev->start==0 and
++ * dev->tbusy==1. Our rx path knows to not pass up received
++ * frames because of dev->flags&IFF_UP is false.
++ */
++ acx_sem_unlock(adev);
++
++ log(L_INIT, "closed device\n");
++ FN_EXIT0;
++ return OK;
++}
++
++
++/***********************************************************************
++** acxmem_i_tx_timeout
++**
++** Called from network core. Must not sleep!
++*/
++static void
++acxmem_i_tx_timeout(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++ unsigned int tx_num_cleaned;
++
++ FN_ENTER;
++
++ acx_lock(adev, flags);
++
++ /* clean processed tx descs, they may have been completely full */
++ tx_num_cleaned = acxmem_l_clean_txdesc(adev);
++
++ /* nothing cleaned, yet (almost) no free buffers available?
++ * --> clean all tx descs, no matter which status!!
++ * Note that I strongly suspect that doing emergency cleaning
++ * may confuse the firmware. This is a last ditch effort to get
++ * ANYTHING to work again...
++ *
++ * TODO: it's best to simply reset & reinit hw from scratch...
++ */
++ if ((adev->tx_free <= TX_EMERG_CLEAN) && (tx_num_cleaned == 0)) {
++ printk("%s: FAILED to free any of the many full tx buffers. "
++ "Switching to emergency freeing. "
++ "Please report!\n", ndev->name);
++ acxmem_l_clean_txdesc_emergency(adev);
++ }
++
++ if (acx_queue_stopped(ndev) && (ACX_STATUS_4_ASSOCIATED == adev->status))
++ acx_wake_queue(ndev, "after tx timeout");
++
++ /* stall may have happened due to radio drift, so recalib radio */
++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
++
++ /* do unimportant work last */
++ printk("%s: tx timeout!\n", ndev->name);
++ adev->stats.tx_errors++;
++
++ acx_unlock(adev, flags);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_i_set_multicast_list
++** FIXME: most likely needs refinement
++*/
++static void
++acxmem_i_set_multicast_list(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++
++ FN_ENTER;
++
++ acx_lock(adev, flags);
++
++ /* firmwares don't have allmulti capability,
++ * so just use promiscuous mode instead in this case. */
++ if (ndev->flags & (IFF_PROMISC|IFF_ALLMULTI)) {
++ SET_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS);
++ CLEAR_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI);
++ SET_BIT(adev->set_mask, SET_RXCONFIG);
++ /* let kernel know in case *we* needed to set promiscuous */
++ ndev->flags |= (IFF_PROMISC|IFF_ALLMULTI);
++ } else {
++ CLEAR_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS);
++ SET_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI);
++ SET_BIT(adev->set_mask, SET_RXCONFIG);
++ ndev->flags &= ~(IFF_PROMISC|IFF_ALLMULTI);
++ }
++
++ /* cannot update card settings directly here, atomic context */
++ acx_schedule_task(adev, ACX_AFTER_IRQ_UPDATE_CARD_CFG);
++
++ acx_unlock(adev, flags);
++
++ FN_EXIT0;
++}
++
++
++/***************************************************************
++** acxmem_l_process_rxdesc
++**
++** Called directly and only from the IRQ handler
++*/
++
++#if !ACX_DEBUG
++static inline void log_rxbuffer(const acx_device_t *adev) {}
++#else
++static void
++log_rxbuffer(const acx_device_t *adev)
++{
++ register const struct rxhostdesc *rxhostdesc;
++ int i;
++ /* no FN_ENTER here, we don't want that */
++
++ rxhostdesc = adev->rxhostdesc_start;
++ if (unlikely(!rxhostdesc)) return;
++ for (i = 0; i < RX_CNT; i++) {
++ if ((rxhostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN))
++ && (rxhostdesc->Status & cpu_to_le32(DESC_STATUS_FULL)))
++ printk("rx: buf %d full\n", i);
++ rxhostdesc++;
++ }
++}
++#endif
++
++static void
++acxmem_l_process_rxdesc(acx_device_t *adev)
++{
++ register rxhostdesc_t *hostdesc;
++ register rxdesc_t *rxdesc;
++ unsigned count, tail;
++ u32 addr;
++ u8 Ctl_8;
++
++ FN_ENTER;
++
++ if (unlikely(acx_debug & L_BUFR))
++ log_rxbuffer(adev);
++
++ /* First, have a loop to determine the first descriptor that's
++ * full, just in case there's a mismatch between our current
++ * rx_tail and the full descriptor we're supposed to handle. */
++ tail = adev->rx_tail;
++ count = RX_CNT;
++ while (1) {
++ hostdesc = &adev->rxhostdesc_start[tail];
++ rxdesc = &adev->rxdesc_start[tail];
++ /* advance tail regardless of outcome of the below test */
++ tail = (tail + 1) % RX_CNT;
++
++ /*
++ * Unlike the PCI interface, where the ACX can write directly to
++ * the host descriptors, on the slave memory interface we have to
++ * pull these. All we really need to do is check the Ctl_8 field
++ * in the rx descriptor on the ACX, which should be 0x11000000 if
++ * we should process it.
++ */
++ Ctl_8 = hostdesc->Ctl_16 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8));
++ if ((Ctl_8 & DESC_CTL_HOSTOWN) &&
++ (Ctl_8 & DESC_CTL_ACXDONE))
++ break; /* found it! */
++
++ if (unlikely(!--count)) /* hmm, no luck: all descs empty, bail out */
++ goto end;
++ }
++
++ /* now process descriptors, starting with the first we figured out */
++ while (1) {
++ log(L_BUFR, "rx: tail=%u Ctl_8=%02X\n", tail, Ctl_8);
++ /*
++ * If the ACX has CTL_RECLAIM set on this descriptor there
++ * is no buffer associated; it just wants us to tell it to
++ * reclaim the memory.
++ */
++ if (!(Ctl_8 & DESC_CTL_RECLAIM)) {
++
++ /*
++ * slave interface - pull data now
++ */
++ hostdesc->length = read_slavemem16 (adev, (u32) &(rxdesc->total_length));
++
++ /*
++ * hostdesc->data is an rxbuffer_t, which includes header information,
++ * but the length in the data packet doesn't. The header information
++ * takes up an additional 12 bytes, so add that to the length we copy.
++ */
++ addr = read_slavemem32 (adev, (u32) &(rxdesc->ACXMemPtr));
++ if (addr) {
++ /*
++ * How can &(rxdesc->ACXMemPtr) above ever be zero? Looks like we
++ * get that now and then - try to trap it for debug.
++ */
++ if (addr & 0xffff0000) {
++ printk("rxdesc 0x%08x\n", (u32) rxdesc);
++ dump_acxmem (adev, 0, 0x10000);
++ panic ("Bad access!");
++ }
++ chaincopy_from_slavemem (adev, (u8 *) hostdesc->data, addr,
++ hostdesc->length +
++ (u32) &((rxbuffer_t *)0)->hdr_a3);
++ acx_l_process_rxbuf(adev, hostdesc->data);
++ }
++ }
++ else {
++ printk ("rx reclaim only!\n");
++ }
++
++ hostdesc->Status = 0;
++
++ /*
++ * Let the ACX know we're done.
++ */
++ CLEAR_BIT (Ctl_8, DESC_CTL_HOSTOWN);
++ SET_BIT (Ctl_8, DESC_CTL_HOSTDONE);
++ SET_BIT (Ctl_8, DESC_CTL_RECLAIM);
++ write_slavemem8 (adev, (u32) &rxdesc->Ctl_8, Ctl_8);
++
++ /*
++ * Now tell the ACX we've finished with the receive buffer so
++ * it can finish the reclaim.
++ */
++ write_reg16 (adev, IO_ACX_INT_TRIG, INT_TRIG_RXPRC);
++
++ /* ok, descriptor is handled, now check the next descriptor */
++ hostdesc = &adev->rxhostdesc_start[tail];
++ rxdesc = &adev->rxdesc_start[tail];
++
++ Ctl_8 = hostdesc->Ctl_16 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8));
++
++ /* if next descriptor is empty, then bail out */
++ if (!(Ctl_8 & DESC_CTL_HOSTOWN) || !(Ctl_8 & DESC_CTL_ACXDONE))
++ break;
++
++ tail = (tail + 1) % RX_CNT;
++ }
++end:
++ adev->rx_tail = tail;
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_i_interrupt
++**
++** IRQ handler (atomic context, must not sleep, blah, blah)
++*/
++
++/* scan is complete. all frames now on the receive queue are valid */
++#define INFO_SCAN_COMPLETE 0x0001
++#define INFO_WEP_KEY_NOT_FOUND 0x0002
++/* hw has been reset as the result of a watchdog timer timeout */
++#define INFO_WATCH_DOG_RESET 0x0003
++/* failed to send out NULL frame from PS mode notification to AP */
++/* recommended action: try entering 802.11 PS mode again */
++#define INFO_PS_FAIL 0x0004
++/* encryption/decryption process on a packet failed */
++#define INFO_IV_ICV_FAILURE 0x0005
++
++/* Info mailbox format:
++2 bytes: type
++2 bytes: status
++more bytes may follow
++ rumors say about status:
++ 0x0000 info available (set by hw)
++ 0x0001 information received (must be set by host)
++ 0x1000 info available, mailbox overflowed (messages lost) (set by hw)
++ but in practice we've seen:
++ 0x9000 when we did not set status to 0x0001 on prev message
++ 0x1001 when we did set it
++ 0x0000 was never seen
++ conclusion: this is really a bitfield:
++ 0x1000 is 'info available' bit
++ 'mailbox overflowed' bit is 0x8000, not 0x1000
++ value of 0x0000 probably means that there are no messages at all
++ P.S. I dunno how in hell hw is supposed to notice that messages are lost -
++ it does NOT clear bit 0x0001, and this bit will probably stay forever set
++ after we set it once. Let's hope this will be fixed in firmware someday
++*/
++
++static void
++handle_info_irq(acx_device_t *adev)
++{
++#if ACX_DEBUG
++ static const char * const info_type_msg[] = {
++ "(unknown)",
++ "scan complete",
++ "WEP key not found",
++ "internal watchdog reset was done",
++ "failed to send powersave (NULL frame) notification to AP",
++ "encrypt/decrypt on a packet has failed",
++ "TKIP tx keys disabled",
++ "TKIP rx keys disabled",
++ "TKIP rx: key ID not found",
++ "???",
++ "???",
++ "???",
++ "???",
++ "???",
++ "???",
++ "???",
++ "TKIP IV value exceeds thresh"
++ };
++#endif
++ u32 info_type, info_status;
++
++ info_type = read_slavemem32 (adev, (u32) adev->info_area);
++
++ info_status = (info_type >> 16);
++ info_type = (u16)info_type;
++
++ /* inform fw that we have read this info message */
++ write_slavemem32(adev, (u32) adev->info_area, info_type | 0x00010000);
++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_INFOACK);
++ write_flush(adev);
++
++ log(L_CTL, "info_type:%04X info_status:%04X\n",
++ info_type, info_status);
++
++ log(L_IRQ, "got Info IRQ: status %04X type %04X: %s\n",
++ info_status, info_type,
++ info_type_msg[(info_type >= VEC_SIZE(info_type_msg)) ?
++ 0 : info_type]
++ );
++}
++
++
++static void
++log_unusual_irq(u16 irqtype) {
++ /*
++ if (!printk_ratelimit())
++ return;
++ */
++
++ printk("acx: got");
++ if (irqtype & HOST_INT_TX_XFER) {
++ printk(" Tx_Xfer");
++ }
++ if (irqtype & HOST_INT_RX_COMPLETE) {
++ printk(" Rx_Complete");
++ }
++ if (irqtype & HOST_INT_DTIM) {
++ printk(" DTIM");
++ }
++ if (irqtype & HOST_INT_BEACON) {
++ printk(" Beacon");
++ }
++ if (irqtype & HOST_INT_TIMER) {
++ log(L_IRQ, " Timer");
++ }
++ if (irqtype & HOST_INT_KEY_NOT_FOUND) {
++ printk(" Key_Not_Found");
++ }
++ if (irqtype & HOST_INT_IV_ICV_FAILURE) {
++ printk(" IV_ICV_Failure (crypto)");
++ }
++ /* HOST_INT_CMD_COMPLETE */
++ /* HOST_INT_INFO */
++ if (irqtype & HOST_INT_OVERFLOW) {
++ printk(" Overflow");
++ }
++ if (irqtype & HOST_INT_PROCESS_ERROR) {
++ printk(" Process_Error");
++ }
++ /* HOST_INT_SCAN_COMPLETE */
++ if (irqtype & HOST_INT_FCS_THRESHOLD) {
++ printk(" FCS_Threshold");
++ }
++ if (irqtype & HOST_INT_UNKNOWN) {
++ printk(" Unknown");
++ }
++ printk(" IRQ(s)\n");
++}
++
++
++static void
++update_link_quality_led(acx_device_t *adev)
++{
++ int qual;
++
++ qual = acx_signal_determine_quality(adev->wstats.qual.level, adev->wstats.qual.noise);
++ if (qual > adev->brange_max_quality)
++ qual = adev->brange_max_quality;
++
++ if (time_after(jiffies, adev->brange_time_last_state_change +
++ (HZ/2 - HZ/2 * (unsigned long)qual / adev->brange_max_quality ) )) {
++ acxmem_l_power_led(adev, (adev->brange_last_state == 0));
++ adev->brange_last_state ^= 1; /* toggle */
++ adev->brange_time_last_state_change = jiffies;
++ }
++}
++
++
++#define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* a la orinoco.c */
++
++static irqreturn_t
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
++acxmem_i_interrupt(int irq, void *dev_id)
++#else
++acxmwm_i_interrupt(int irq, void *dev_id, struct pt_regs *regs)
++#endif
++{
++ acx_device_t *adev;
++ unsigned long flags;
++ unsigned int irqcount = MAX_IRQLOOPS_PER_JIFFY;
++ register u16 irqtype;
++ u16 unmasked;
++
++ adev = ndev2adev((struct net_device*)dev_id);
++
++ /* LOCKING: can just spin_lock() since IRQs are disabled anyway.
++ * I am paranoid */
++ acx_lock(adev, flags);
++
++ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR);
++ if (unlikely(0xffff == unmasked)) {
++ /* 0xffff value hints at missing hardware,
++ * so don't do anything.
++ * Not very clean, but other drivers do the same... */
++ log(L_IRQ, "IRQ type:FFFF - device removed? IRQ_NONE\n");
++ goto none;
++ }
++
++ /* We will check only "interesting" IRQ types */
++ irqtype = unmasked & ~adev->irq_mask;
++ if (!irqtype) {
++ /* We are on a shared IRQ line and it wasn't our IRQ */
++ log(L_IRQ, "IRQ type:%04X, mask:%04X - all are masked, IRQ_NONE\n",
++ unmasked, adev->irq_mask);
++ goto none;
++ }
++
++ /* Done here because IRQ_NONEs taking three lines of log
++ ** drive me crazy */
++ FN_ENTER;
++
++#define IRQ_ITERATE 1
++#if IRQ_ITERATE
++if (jiffies != adev->irq_last_jiffies) {
++ adev->irq_loops_this_jiffy = 0;
++ adev->irq_last_jiffies = jiffies;
++}
++
++/* safety condition; we'll normally abort loop below
++ * in case no IRQ type occurred */
++while (likely(--irqcount)) {
++#endif
++ /* ACK all IRQs ASAP */
++ write_reg16(adev, IO_ACX_IRQ_ACK, 0xffff);
++
++ log(L_IRQ, "IRQ type:%04X, mask:%04X, type & ~mask:%04X\n",
++ unmasked, adev->irq_mask, irqtype);
++
++ /* Handle most important IRQ types first */
++ if (irqtype & HOST_INT_RX_DATA) {
++ log(L_IRQ, "got Rx_Data IRQ\n");
++ acxmem_l_process_rxdesc(adev);
++ }
++ if (irqtype & HOST_INT_TX_COMPLETE) {
++ log(L_IRQ, "got Tx_Complete IRQ\n");
++ /* don't clean up on each Tx complete, wait a bit
++ * unless we're going towards full, in which case
++ * we do it immediately, too (otherwise we might lockup
++ * with a full Tx buffer if we go into
++ * acxmem_l_clean_txdesc() at a time when we won't wakeup
++ * the net queue in there for some reason...) */
++ if (adev->tx_free <= TX_START_CLEAN) {
++#if TX_CLEANUP_IN_SOFTIRQ
++ acx_schedule_task(adev, ACX_AFTER_IRQ_TX_CLEANUP);
++#else
++ acxmem_l_clean_txdesc(adev);
++#endif
++ }
++ }
++
++ /* Less frequent ones */
++ if (irqtype & (0
++ | HOST_INT_CMD_COMPLETE
++ | HOST_INT_INFO
++ | HOST_INT_SCAN_COMPLETE
++ )) {
++ if (irqtype & HOST_INT_CMD_COMPLETE) {
++ log(L_IRQ, "got Command_Complete IRQ\n");
++ /* save the state for the running issue_cmd() */
++ SET_BIT(adev->irq_status, HOST_INT_CMD_COMPLETE);
++ }
++ if (irqtype & HOST_INT_INFO) {
++ handle_info_irq(adev);
++ }
++ if (irqtype & HOST_INT_SCAN_COMPLETE) {
++ log(L_IRQ, "got Scan_Complete IRQ\n");
++ /* need to do that in process context */
++ acx_schedule_task(adev, ACX_AFTER_IRQ_COMPLETE_SCAN);
++ /* remember that fw is not scanning anymore */
++ SET_BIT(adev->irq_status, HOST_INT_SCAN_COMPLETE);
++ }
++ }
++
++ /* These we just log, but either they happen rarely
++ * or we keep them masked out */
++ if (irqtype & (0
++ /* | HOST_INT_RX_DATA */
++ /* | HOST_INT_TX_COMPLETE */
++ | HOST_INT_TX_XFER
++ | HOST_INT_RX_COMPLETE
++ | HOST_INT_DTIM
++ | HOST_INT_BEACON
++ | HOST_INT_TIMER
++ | HOST_INT_KEY_NOT_FOUND
++ | HOST_INT_IV_ICV_FAILURE
++ /* | HOST_INT_CMD_COMPLETE */
++ /* | HOST_INT_INFO */
++ | HOST_INT_OVERFLOW
++ | HOST_INT_PROCESS_ERROR
++ /* | HOST_INT_SCAN_COMPLETE */
++ | HOST_INT_FCS_THRESHOLD
++ | HOST_INT_UNKNOWN
++ )) {
++ log_unusual_irq(irqtype);
++ }
++
++#if IRQ_ITERATE
++ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR);
++ irqtype = unmasked & ~adev->irq_mask;
++ /* Bail out if no new IRQ bits or if all are masked out */
++ if (!irqtype)
++ break;
++
++ if (unlikely(++adev->irq_loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY)) {
++ printk(KERN_ERR "acx: too many interrupts per jiffy!\n");
++ /* Looks like card floods us with IRQs! Try to stop that */
++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
++ /* This will short-circuit all future attempts to handle IRQ.
++ * We cant do much more... */
++ adev->irq_mask = 0;
++ break;
++ }
++}
++#endif
++ /* Routine to perform blink with range */
++ if (unlikely(adev->led_power == 2))
++ update_link_quality_led(adev);
++
++/* handled: */
++ /* write_flush(adev); - not needed, last op was read anyway */
++ acx_unlock(adev, flags);
++ FN_EXIT0;
++ return IRQ_HANDLED;
++
++none:
++ acx_unlock(adev, flags);
++ return IRQ_NONE;
++}
++
++
++/***********************************************************************
++** acxmem_l_power_led
++*/
++void
++acxmem_l_power_led(acx_device_t *adev, int enable)
++{
++ u16 gpio_pled = IS_ACX111(adev) ? 0x0040 : 0x0800;
++
++ /* A hack. Not moving message rate limiting to adev->xxx
++ * (it's only a debug message after all) */
++ static int rate_limit = 0;
++
++ if (rate_limit++ < 3)
++ log(L_IOCTL, "Please report in case toggling the power "
++ "LED doesn't work for your card!\n");
++ if (enable)
++ write_reg16(adev, IO_ACX_GPIO_OUT,
++ read_reg16(adev, IO_ACX_GPIO_OUT) & ~gpio_pled);
++ else
++ write_reg16(adev, IO_ACX_GPIO_OUT,
++ read_reg16(adev, IO_ACX_GPIO_OUT) | gpio_pled);
++}
++
++
++/***********************************************************************
++** Ioctls
++*/
++
++/***********************************************************************
++*/
++int
++acx111pci_ioctl_info(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ struct iw_param *vwrq,
++ char *extra)
++{
++#if ACX_DEBUG > 1
++ acx_device_t *adev = ndev2adev(ndev);
++ rxdesc_t *rxdesc;
++ txdesc_t *txdesc;
++ rxhostdesc_t *rxhostdesc;
++ txhostdesc_t *txhostdesc;
++ struct acx111_ie_memoryconfig memconf;
++ struct acx111_ie_queueconfig queueconf;
++ unsigned long flags;
++ int i;
++ char memmap[0x34];
++ char rxconfig[0x8];
++ char fcserror[0x8];
++ char ratefallback[0x5];
++
++ if ( !(acx_debug & (L_IOCTL|L_DEBUG)) )
++ return OK;
++ /* using printk() since we checked debug flag already */
++
++ acx_sem_lock(adev);
++
++ if (!IS_ACX111(adev)) {
++ printk("acx111-specific function called "
++ "with non-acx111 chip, aborting\n");
++ goto end_ok;
++ }
++
++ /* get Acx111 Memory Configuration */
++ memset(&memconf, 0, sizeof(memconf));
++ /* BTW, fails with 12 (Write only) error code.
++ ** Retained for easy testing of issue_cmd error handling :) */
++ printk ("Interrogating queue config\n");
++ acx_s_interrogate(adev, &memconf, ACX1xx_IE_QUEUE_CONFIG);
++ printk ("done with queue config\n");
++
++ /* get Acx111 Queue Configuration */
++ memset(&queueconf, 0, sizeof(queueconf));
++ printk ("Interrogating mem config options\n");
++ acx_s_interrogate(adev, &queueconf, ACX1xx_IE_MEMORY_CONFIG_OPTIONS);
++ printk ("done with mem config options\n");
++
++ /* get Acx111 Memory Map */
++ memset(memmap, 0, sizeof(memmap));
++ printk ("Interrogating mem map\n");
++ acx_s_interrogate(adev, &memmap, ACX1xx_IE_MEMORY_MAP);
++ printk ("done with mem map\n");
++
++ /* get Acx111 Rx Config */
++ memset(rxconfig, 0, sizeof(rxconfig));
++ printk ("Interrogating rxconfig\n");
++ acx_s_interrogate(adev, &rxconfig, ACX1xx_IE_RXCONFIG);
++ printk ("done with queue rxconfig\n");
++
++ /* get Acx111 fcs error count */
++ memset(fcserror, 0, sizeof(fcserror));
++ printk ("Interrogating fcs err count\n");
++ acx_s_interrogate(adev, &fcserror, ACX1xx_IE_FCS_ERROR_COUNT);
++ printk ("done with err count\n");
++
++ /* get Acx111 rate fallback */
++ memset(ratefallback, 0, sizeof(ratefallback));
++ printk ("Interrogating rate fallback\n");
++ acx_s_interrogate(adev, &ratefallback, ACX1xx_IE_RATE_FALLBACK);
++ printk ("done with rate fallback\n");
++
++ /* force occurrence of a beacon interrupt */
++ /* TODO: comment why is this necessary */
++ write_reg16(adev, IO_ACX_HINT_TRIG, HOST_INT_BEACON);
++
++ /* dump Acx111 Mem Configuration */
++ printk("dump mem config:\n"
++ "data read: %d, struct size: %d\n"
++ "Number of stations: %1X\n"
++ "Memory block size: %1X\n"
++ "tx/rx memory block allocation: %1X\n"
++ "count rx: %X / tx: %X queues\n"
++ "options %1X\n"
++ "fragmentation %1X\n"
++ "Rx Queue 1 Count Descriptors: %X\n"
++ "Rx Queue 1 Host Memory Start: %X\n"
++ "Tx Queue 1 Count Descriptors: %X\n"
++ "Tx Queue 1 Attributes: %X\n",
++ memconf.len, (int) sizeof(memconf),
++ memconf.no_of_stations,
++ memconf.memory_block_size,
++ memconf.tx_rx_memory_block_allocation,
++ memconf.count_rx_queues, memconf.count_tx_queues,
++ memconf.options,
++ memconf.fragmentation,
++ memconf.rx_queue1_count_descs,
++ acx2cpu(memconf.rx_queue1_host_rx_start),
++ memconf.tx_queue1_count_descs,
++ memconf.tx_queue1_attributes);
++
++ /* dump Acx111 Queue Configuration */
++ printk("dump queue head:\n"
++ "data read: %d, struct size: %d\n"
++ "tx_memory_block_address (from card): %X\n"
++ "rx_memory_block_address (from card): %X\n"
++ "rx1_queue address (from card): %X\n"
++ "tx1_queue address (from card): %X\n"
++ "tx1_queue attributes (from card): %X\n",
++ queueconf.len, (int) sizeof(queueconf),
++ queueconf.tx_memory_block_address,
++ queueconf.rx_memory_block_address,
++ queueconf.rx1_queue_address,
++ queueconf.tx1_queue_address,
++ queueconf.tx1_attributes);
++
++ /* dump Acx111 Mem Map */
++ printk("dump mem map:\n"
++ "data read: %d, struct size: %d\n"
++ "Code start: %X\n"
++ "Code end: %X\n"
++ "WEP default key start: %X\n"
++ "WEP default key end: %X\n"
++ "STA table start: %X\n"
++ "STA table end: %X\n"
++ "Packet template start: %X\n"
++ "Packet template end: %X\n"
++ "Queue memory start: %X\n"
++ "Queue memory end: %X\n"
++ "Packet memory pool start: %X\n"
++ "Packet memory pool end: %X\n"
++ "iobase: %p\n"
++ "iobase2: %p\n",
++ *((u16 *)&memmap[0x02]), (int) sizeof(memmap),
++ *((u32 *)&memmap[0x04]),
++ *((u32 *)&memmap[0x08]),
++ *((u32 *)&memmap[0x0C]),
++ *((u32 *)&memmap[0x10]),
++ *((u32 *)&memmap[0x14]),
++ *((u32 *)&memmap[0x18]),
++ *((u32 *)&memmap[0x1C]),
++ *((u32 *)&memmap[0x20]),
++ *((u32 *)&memmap[0x24]),
++ *((u32 *)&memmap[0x28]),
++ *((u32 *)&memmap[0x2C]),
++ *((u32 *)&memmap[0x30]),
++ adev->iobase,
++ adev->iobase2);
++
++ /* dump Acx111 Rx Config */
++ printk("dump rx config:\n"
++ "data read: %d, struct size: %d\n"
++ "rx config: %X\n"
++ "rx filter config: %X\n",
++ *((u16 *)&rxconfig[0x02]), (int) sizeof(rxconfig),
++ *((u16 *)&rxconfig[0x04]),
++ *((u16 *)&rxconfig[0x06]));
++
++ /* dump Acx111 fcs error */
++ printk("dump fcserror:\n"
++ "data read: %d, struct size: %d\n"
++ "fcserrors: %X\n",
++ *((u16 *)&fcserror[0x02]), (int) sizeof(fcserror),
++ *((u32 *)&fcserror[0x04]));
++
++ /* dump Acx111 rate fallback */
++ printk("dump rate fallback:\n"
++ "data read: %d, struct size: %d\n"
++ "ratefallback: %X\n",
++ *((u16 *)&ratefallback[0x02]), (int) sizeof(ratefallback),
++ *((u8 *)&ratefallback[0x04]));
++
++ /* protect against IRQ */
++ acx_lock(adev, flags);
++
++ /* dump acx111 internal rx descriptor ring buffer */
++ rxdesc = adev->rxdesc_start;
++
++ /* loop over complete receive pool */
++ if (rxdesc) for (i = 0; i < RX_CNT; i++) {
++ printk("\ndump internal rxdesc %d:\n"
++ "mem pos %p\n"
++ "next 0x%X\n"
++ "acx mem pointer (dynamic) 0x%X\n"
++ "CTL (dynamic) 0x%X\n"
++ "Rate (dynamic) 0x%X\n"
++ "RxStatus (dynamic) 0x%X\n"
++ "Mod/Pre (dynamic) 0x%X\n",
++ i,
++ rxdesc,
++ acx2cpu(rxdesc->pNextDesc),
++ acx2cpu(rxdesc->ACXMemPtr),
++ rxdesc->Ctl_8,
++ rxdesc->rate,
++ rxdesc->error,
++ rxdesc->SNR);
++ rxdesc++;
++ }
++
++ /* dump host rx descriptor ring buffer */
++
++ rxhostdesc = adev->rxhostdesc_start;
++
++ /* loop over complete receive pool */
++ if (rxhostdesc) for (i = 0; i < RX_CNT; i++) {
++ printk("\ndump host rxdesc %d:\n"
++ "mem pos %p\n"
++ "buffer mem pos 0x%X\n"
++ "buffer mem offset 0x%X\n"
++ "CTL 0x%X\n"
++ "Length 0x%X\n"
++ "next 0x%X\n"
++ "Status 0x%X\n",
++ i,
++ rxhostdesc,
++ acx2cpu(rxhostdesc->data_phy),
++ rxhostdesc->data_offset,
++ le16_to_cpu(rxhostdesc->Ctl_16),
++ le16_to_cpu(rxhostdesc->length),
++ acx2cpu(rxhostdesc->desc_phy_next),
++ rxhostdesc->Status);
++ rxhostdesc++;
++ }
++
++ /* dump acx111 internal tx descriptor ring buffer */
++ txdesc = adev->txdesc_start;
++
++ /* loop over complete transmit pool */
++ if (txdesc) for (i = 0; i < TX_CNT; i++) {
++ printk("\ndump internal txdesc %d:\n"
++ "size 0x%X\n"
++ "mem pos %p\n"
++ "next 0x%X\n"
++ "acx mem pointer (dynamic) 0x%X\n"
++ "host mem pointer (dynamic) 0x%X\n"
++ "length (dynamic) 0x%X\n"
++ "CTL (dynamic) 0x%X\n"
++ "CTL2 (dynamic) 0x%X\n"
++ "Status (dynamic) 0x%X\n"
++ "Rate (dynamic) 0x%X\n",
++ i,
++ (int) sizeof(struct txdesc),
++ txdesc,
++ acx2cpu(txdesc->pNextDesc),
++ acx2cpu(txdesc->AcxMemPtr),
++ acx2cpu(txdesc->HostMemPtr),
++ le16_to_cpu(txdesc->total_length),
++ txdesc->Ctl_8,
++ txdesc->Ctl2_8, txdesc->error,
++ txdesc->u.r1.rate);
++ txdesc = advance_txdesc(adev, txdesc, 1);
++ }
++
++ /* dump host tx descriptor ring buffer */
++
++ txhostdesc = adev->txhostdesc_start;
++
++ /* loop over complete host send pool */
++ if (txhostdesc) for (i = 0; i < TX_CNT * 2; i++) {
++ printk("\ndump host txdesc %d:\n"
++ "mem pos %p\n"
++ "buffer mem pos 0x%X\n"
++ "buffer mem offset 0x%X\n"
++ "CTL 0x%X\n"
++ "Length 0x%X\n"
++ "next 0x%X\n"
++ "Status 0x%X\n",
++ i,
++ txhostdesc,
++ acx2cpu(txhostdesc->data_phy),
++ txhostdesc->data_offset,
++ le16_to_cpu(txhostdesc->Ctl_16),
++ le16_to_cpu(txhostdesc->length),
++ acx2cpu(txhostdesc->desc_phy_next),
++ le32_to_cpu(txhostdesc->Status));
++ txhostdesc++;
++ }
++
++ /* write_reg16(adev, 0xb4, 0x4); */
++
++ acx_unlock(adev, flags);
++end_ok:
++
++ acx_sem_unlock(adev);
++#endif /* ACX_DEBUG */
++ return OK;
++}
++
++
++/***********************************************************************
++*/
++int
++acx100mem_ioctl_set_phy_amp_bias(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ struct iw_param *vwrq,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++ u16 gpio_old;
++
++ if (!IS_ACX100(adev)) {
++ /* WARNING!!!
++ * Removing this check *might* damage
++ * hardware, since we're tweaking GPIOs here after all!!!
++ * You've been warned...
++ * WARNING!!! */
++ printk("acx: sorry, setting bias level for non-acx100 "
++ "is not supported yet\n");
++ return OK;
++ }
++
++ if (*extra > 7) {
++ printk("acx: invalid bias parameter, range is 0-7\n");
++ return -EINVAL;
++ }
++
++ acx_sem_lock(adev);
++
++ /* Need to lock accesses to [IO_ACX_GPIO_OUT]:
++ * IRQ handler uses it to update LED */
++ acx_lock(adev, flags);
++ gpio_old = read_reg16(adev, IO_ACX_GPIO_OUT);
++ write_reg16(adev, IO_ACX_GPIO_OUT, (gpio_old & 0xf8ff) | ((u16)*extra << 8));
++ acx_unlock(adev, flags);
++
++ log(L_DEBUG, "gpio_old: 0x%04X\n", gpio_old);
++ printk("%s: PHY power amplifier bias: old:%d, new:%d\n",
++ ndev->name,
++ (gpio_old & 0x0700) >> 8, (unsigned char)*extra);
++
++ acx_sem_unlock(adev);
++
++ return OK;
++}
++
++/***************************************************************
++** acxmem_l_alloc_tx
++** Actually returns a txdesc_t* ptr
++**
++** FIXME: in case of fragments, should allocate multiple descrs
++** after figuring out how many we need and whether we still have
++** sufficiently many.
++*/
++tx_t*
++acxmem_l_alloc_tx(acx_device_t *adev)
++{
++ struct txdesc *txdesc;
++ unsigned head;
++ u8 ctl8;
++ static int txattempts = 0;
++
++ FN_ENTER;
++
++ if (unlikely(!adev->tx_free)) {
++ printk("acx: BUG: no free txdesc left\n");
++ /*
++ * Probably the ACX ignored a transmit attempt and now there's a packet
++ * sitting in the queue we think should be transmitting but the ACX doesn't
++ * know about.
++ * On the first pass, send the ACX a TxProc interrupt to try moving
++ * things along, and if that doesn't work (ie, we get called again) completely
++ * flush the transmit queue.
++ */
++ if (txattempts < 10) {
++ txattempts++;
++ printk ("acx: trying to wake up ACX\n");
++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_TXPRC);
++ write_flush(adev); }
++ else {
++ txattempts = 0;
++ printk ("acx: flushing transmit queue.\n");
++ acxmem_l_clean_txdesc_emergency (adev);
++ }
++ txdesc = NULL;
++ goto end;
++ }
++
++ /*
++ * Make a quick check to see if there is transmit buffer space on
++ * the ACX. This can't guarantee there is enough space for the packet
++ * since we don't yet know how big it is, but it will prevent at least some
++ * annoyances.
++ */
++ if (!adev->acx_txbuf_blocks_free) {
++ txdesc = NULL;
++ goto end;
++ }
++
++ head = adev->tx_head;
++ /*
++ * txdesc points to ACX memory
++ */
++ txdesc = get_txdesc(adev, head);
++ ctl8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
++
++ /*
++ * If we don't own the buffer (HOSTOWN) it is certainly not free; however,
++ * we may have previously thought we had enough memory to send
++ * a packet, allocated the buffer then gave up when we found not enough
++ * transmit buffer space on the ACX. In that case, HOSTOWN and
++ * ACXDONE will both be set.
++ */
++ if (unlikely(DESC_CTL_HOSTOWN != (ctl8 & DESC_CTL_HOSTOWN))) {
++ /* whoops, descr at current index is not free, so probably
++ * ring buffer already full */
++ printk("acx: BUG: tx_head:%d Ctl8:0x%02X - failed to find "
++ "free txdesc\n", head, ctl8);
++ txdesc = NULL;
++ goto end;
++ }
++
++ /* Needed in case txdesc won't be eventually submitted for tx */
++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_ACXDONE_HOSTOWN);
++
++ adev->tx_free--;
++ log(L_BUFT, "tx: got desc %u, %u remain\n",
++ head, adev->tx_free);
++ /* Keep a few free descs between head and tail of tx ring.
++ ** It is not absolutely needed, just feels safer */
++ if (adev->tx_free < TX_STOP_QUEUE) {
++ log(L_BUF, "stop queue (%u tx desc left)\n",
++ adev->tx_free);
++ acx_stop_queue(adev->ndev, NULL);
++ }
++
++ /* returning current descriptor, so advance to next free one */
++ adev->tx_head = (head + 1) % TX_CNT;
++end:
++ FN_EXIT0;
++
++ return (tx_t*)txdesc;
++}
++
++
++/***************************************************************
++** acxmem_l_dealloc_tx
++** Clears out a previously allocatedvoid acxmem_l_dealloc_tx(tx_t *tx_opaque);
++ transmit descriptor. The ACX
++** can get confused if we skip transmit descriptors in the queue,
++** so when we don't need a descriptor return it to its original
++** state and move the queue head pointer back.
++**
++*/
++void
++acxmem_l_dealloc_tx(acx_device_t *adev, tx_t *tx_opaque)
++{
++ /*
++ * txdesc is the address of the descriptor on the ACX.
++ */
++ txdesc_t *txdesc = (txdesc_t*)tx_opaque;
++ txdesc_t tmptxdesc;
++ int index;
++
++ memset (&tmptxdesc, 0, sizeof(tmptxdesc));
++ tmptxdesc.Ctl_8 = DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG;
++ tmptxdesc.u.r1.rate = 0x0a;
++
++ /*
++ * Clear out all of the transmit descriptor except for the next pointer
++ */
++ copy_to_slavemem (adev, (u32) &(txdesc->HostMemPtr),
++ (u8 *) &(tmptxdesc.HostMemPtr),
++ sizeof (tmptxdesc) - sizeof(tmptxdesc.pNextDesc));
++
++ /*
++ * This is only called immediately after we've allocated, so we should
++ * be able to set the head back to this descriptor.
++ */
++ index = ((u8*) txdesc - (u8*)adev->txdesc_start) / adev->txdesc_size;
++ printk ("acx_dealloc: moving head from %d to %d\n", adev->tx_head, index);
++ adev->tx_head = index;
++}
++
++
++/***********************************************************************
++*/
++void*
++acxmem_l_get_txbuf(acx_device_t *adev, tx_t* tx_opaque)
++{
++ return get_txhostdesc(adev, (txdesc_t*)tx_opaque)->data;
++}
++
++
++/***********************************************************************
++** acxmem_l_tx_data
++**
++** Can be called from IRQ (rx -> (AP bridging or mgmt response) -> tx).
++** Can be called from acx_i_start_xmit (data frames from net core).
++**
++** FIXME: in case of fragments, should loop over the number of
++** pre-allocated tx descrs, properly setting up transfer data and
++** CTL_xxx flags according to fragment number.
++*/
++void
++acxmem_update_queue_indicator (acx_device_t *adev, int txqueue)
++{
++#ifdef USING_MORE_THAN_ONE_TRANSMIT_QUEUE
++ u32 indicator;
++ unsigned long flags;
++ int count;
++
++ /*
++ * Can't handle an interrupt while we're fiddling with the ACX's lock,
++ * according to TI. The ACX is supposed to hold fw_lock for at most
++ * 500ns.
++ */
++ local_irq_save (flags);
++
++ /*
++ * Wait for ACX to release the lock (at most 500ns).
++ */
++ count = 0;
++ while (read_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->fw_lock))
++ && (count++ < 50)) {
++ ndelay (10);
++ }
++ if (count < 50) {
++
++ /*
++ * Take out the host lock - anything non-zero will work, so don't worry about
++ * be/le
++ */
++ write_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->host_lock), 1);
++
++ /*
++ * Avoid a race condition
++ */
++ count = 0;
++ while (read_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->fw_lock))
++ && (count++ < 50)) {
++ ndelay (10);
++ }
++
++ if (count < 50) {
++ /*
++ * Mark the queue active
++ */
++ indicator = read_slavemem32 (adev, (u32) &(adev->acx_queue_indicator->indicator));
++ indicator |= cpu_to_le32 (1 << txqueue);
++ write_slavemem32 (adev, (u32) &(adev->acx_queue_indicator->indicator), indicator);
++ }
++
++ /*
++ * Release the host lock
++ */
++ write_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->host_lock), 0);
++
++ }
++
++ /*
++ * Restore interrupts
++ */
++ local_irq_restore (flags);
++#endif
++}
++
++void
++acxmem_l_tx_data(acx_device_t *adev, tx_t* tx_opaque, int len)
++{
++ /*
++ * txdesc is the address on the ACX
++ */
++ txdesc_t *txdesc = (txdesc_t*)tx_opaque;
++ txhostdesc_t *hostdesc1, *hostdesc2;
++ client_t *clt;
++ u16 rate_cur;
++ u8 Ctl_8, Ctl2_8;
++ u32 addr;
++
++ FN_ENTER;
++ /* fw doesn't tx such packets anyhow */
++ if (unlikely(len < WLAN_HDR_A3_LEN))
++ goto end;
++
++ hostdesc1 = get_txhostdesc(adev, txdesc);
++ /* modify flag status in separate variable to be able to write it back
++ * in one big swoop later (also in order to have less device memory
++ * accesses) */
++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
++ Ctl2_8 = 0; /* really need to init it to 0, not txdesc->Ctl2_8, it seems */
++
++ hostdesc2 = hostdesc1 + 1;
++
++ /* DON'T simply set Ctl field to 0 here globally,
++ * it needs to maintain a consistent flag status (those are state flags!!),
++ * otherwise it may lead to severe disruption. Only set or reset particular
++ * flags at the exact moment this is needed... */
++
++ /* let chip do RTS/CTS handshaking before sending
++ * in case packet size exceeds threshold */
++ if (len > adev->rts_threshold)
++ SET_BIT(Ctl2_8, DESC_CTL2_RTS);
++ else
++ CLEAR_BIT(Ctl2_8, DESC_CTL2_RTS);
++
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ case ACX_MODE_3_AP:
++ clt = acx_l_sta_list_get(adev, ((wlan_hdr_t*)hostdesc1->data)->a1);
++ break;
++ case ACX_MODE_2_STA:
++ clt = adev->ap_client;
++ break;
++#if 0
++/* testing was done on acx111: */
++ case ACX_MODE_MONITOR:
++ SET_BIT(Ctl2_8, 0
++/* sends CTS to self before packet */
++ + DESC_CTL2_SEQ /* don't increase sequence field */
++/* not working (looks like good fcs is still added) */
++ + DESC_CTL2_FCS /* don't add the FCS */
++/* not tested */
++ + DESC_CTL2_MORE_FRAG
++/* not tested */
++ + DESC_CTL2_RETRY /* don't increase retry field */
++/* not tested */
++ + DESC_CTL2_POWER /* don't increase power mgmt. field */
++/* no effect */
++ + DESC_CTL2_WEP /* encrypt this frame */
++/* not tested */
++ + DESC_CTL2_DUR /* don't increase duration field */
++ );
++ /* fallthrough */
++#endif
++ default: /* ACX_MODE_OFF, ACX_MODE_MONITOR */
++ clt = NULL;
++ break;
++ }
++
++ rate_cur = clt ? clt->rate_cur : adev->rate_bcast;
++ if (unlikely(!rate_cur)) {
++ printk("acx: driver bug! bad ratemask\n");
++ goto end;
++ }
++
++ /* used in tx cleanup routine for auto rate and accounting: */
++ put_txcr(adev, txdesc, clt, rate_cur);
++
++ write_slavemem16 (adev, (u32) &(txdesc->total_length), cpu_to_le16(len));
++ hostdesc2->length = cpu_to_le16(len - WLAN_HDR_A3_LEN);
++ if (IS_ACX111(adev)) {
++ /* note that if !txdesc->do_auto, txrate->cur
++ ** has only one nonzero bit */
++ txdesc->u.r2.rate111 = cpu_to_le16(
++ rate_cur
++ /* WARNING: I was never able to make it work with prism54 AP.
++ ** It was falling down to 1Mbit where shortpre is not applicable,
++ ** and not working at all at "5,11 basic rates only" setting.
++ ** I even didn't see tx packets in radio packet capture.
++ ** Disabled for now --vda */
++ /*| ((clt->shortpre && clt->cur!=RATE111_1) ? RATE111_SHORTPRE : 0) */
++ );
++#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS
++ /* should add this to rate111 above as necessary */
++ | (clt->pbcc511 ? RATE111_PBCC511 : 0)
++#endif
++ hostdesc1->length = cpu_to_le16(len);
++ } else { /* ACX100 */
++ u8 rate_100 = clt ? clt->rate_100 : adev->rate_bcast100;
++ write_slavemem8 (adev, (u32) &(txdesc->u.r1.rate), rate_100);
++#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS
++ if (clt->pbcc511) {
++ if (n == RATE100_5 || n == RATE100_11)
++ n |= RATE100_PBCC511;
++ }
++
++ if (clt->shortpre && (clt->cur != RATE111_1))
++ SET_BIT(Ctl_8, DESC_CTL_SHORT_PREAMBLE); /* set Short Preamble */
++#endif
++ /* set autodma and reclaim and 1st mpdu */
++ SET_BIT(Ctl_8, DESC_CTL_FIRSTFRAG);
++
++#if ACX_FRAGMENTATION
++ /* SET_BIT(Ctl2_8, DESC_CTL2_MORE_FRAG); cannot set it unconditionally, needs to be set for all non-last fragments */
++#endif
++ hostdesc1->length = cpu_to_le16(WLAN_HDR_A3_LEN);
++
++ /*
++ * Since we're not using autodma copy the packet data to the acx now.
++ * Even host descriptors point to the packet header, and the odd indexed
++ * descriptor following points to the packet data.
++ *
++ * The first step is to find free memory in the ACX transmit buffers.
++ * They don't necessarily map one to one with the transmit queue entries,
++ * so search through them starting just after the last one used.
++ */
++ addr = allocate_acx_txbuf_space (adev, len);
++ if (addr) {
++ chaincopy_to_slavemem (adev, addr, hostdesc1->data, len);
++ }
++ else {
++ /*
++ * Bummer. We thought we might have enough room in the transmit
++ * buffers to send this packet, but it turns out we don't. alloc_tx
++ * has already marked this transmit descriptor as HOSTOWN and ACXDONE,
++ * which means the ACX will hang when it gets to this descriptor unless
++ * we do something about it. Having a bubble in the transmit queue just
++ * doesn't seem to work, so we have to reset this transmit queue entry's
++ * state to its original value and back up our head pointer to point
++ * back to this entry.
++ */
++ hostdesc1->length = 0;
++ hostdesc2->length = 0;
++ write_slavemem16 (adev, (u32) &(txdesc->total_length), 0);
++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG);
++ adev->tx_head = ((u8*) txdesc - (u8*) adev->txdesc_start) / adev->txdesc_size;
++ goto end;
++ }
++ /*
++ * Tell the ACX where the packet is.
++ */
++ write_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr), addr);
++
++ }
++ /* don't need to clean ack/rts statistics here, already
++ * done on descr cleanup */
++
++ /* clears HOSTOWN and ACXDONE bits, thus telling that the descriptors
++ * are now owned by the acx100; do this as LAST operation */
++ CLEAR_BIT(Ctl_8, DESC_CTL_ACXDONE_HOSTOWN);
++ /* flush writes before we release hostdesc to the adapter here */
++ //wmb();
++
++ /* write back modified flags */
++ /*
++ * At this point Ctl_8 should just be FIRSTFRAG
++ */
++ write_slavemem8 (adev, (u32) &(txdesc->Ctl2_8),Ctl2_8);
++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), Ctl_8);
++ /* unused: txdesc->tx_time = cpu_to_le32(jiffies); */
++
++ /*
++ * Update the queue indicator to say there's data on the first queue.
++ */
++ acxmem_update_queue_indicator (adev, 0);
++
++ /* flush writes before we tell the adapter that it's its turn now */
++ mmiowb();
++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_TXPRC);
++ write_flush(adev);
++
++ /* log the packet content AFTER sending it,
++ * in order to not delay sending any further than absolutely needed
++ * Do separate logs for acx100/111 to have human-readable rates */
++ if (unlikely(acx_debug & (L_XFER|L_DATA))) {
++ u16 fc = ((wlan_hdr_t*)hostdesc1->data)->fc;
++ if (IS_ACX111(adev))
++ printk("tx: pkt (%s): len %d "
++ "rate %04X%s status %u\n",
++ acx_get_packet_type_string(le16_to_cpu(fc)), len,
++ le16_to_cpu(txdesc->u.r2.rate111),
++ (le16_to_cpu(txdesc->u.r2.rate111) & RATE111_SHORTPRE) ? "(SPr)" : "",
++ adev->status);
++ else
++ printk("tx: pkt (%s): len %d rate %03u%s status %u\n",
++ acx_get_packet_type_string(fc), len,
++ read_slavemem8 (adev, (u32) &(txdesc->u.r1.rate)),
++ (Ctl_8 & DESC_CTL_SHORT_PREAMBLE) ? "(SPr)" : "",
++ adev->status);
++
++ if (acx_debug & L_DATA) {
++ printk("tx: 802.11 [%d]: ", len);
++ acx_dump_bytes(hostdesc1->data, len);
++ }
++ }
++end:
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_l_clean_txdesc
++**
++** This function resets the txdescs' status when the ACX100
++** signals the TX done IRQ (txdescs have been processed), starting with
++** the pool index of the descriptor which we would use next,
++** in order to make sure that we can be as fast as possible
++** in filling new txdescs.
++** Everytime we get called we know where the next packet to be cleaned is.
++*/
++
++#if !ACX_DEBUG
++static inline void log_txbuffer(const acx_device_t *adev) {}
++#else
++static void
++log_txbuffer(acx_device_t *adev)
++{
++ txdesc_t *txdesc;
++ int i;
++ u8 Ctl_8;
++
++ /* no FN_ENTER here, we don't want that */
++ /* no locks here, since it's entirely non-critical code */
++ txdesc = adev->txdesc_start;
++ if (unlikely(!txdesc)) return;
++ printk("tx: desc->Ctl8's:");
++ for (i = 0; i < TX_CNT; i++) {
++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
++ printk(" %02X", Ctl_8);
++ txdesc = advance_txdesc(adev, txdesc, 1);
++ }
++ printk("\n");
++}
++#endif
++
++
++static void
++handle_tx_error(acx_device_t *adev, u8 error, unsigned int finger)
++{
++ const char *err = "unknown error";
++
++ /* hmm, should we handle this as a mask
++ * of *several* bits?
++ * For now I think only caring about
++ * individual bits is ok... */
++ switch (error) {
++ case 0x01:
++ err = "no Tx due to error in other fragment";
++ adev->wstats.discard.fragment++;
++ break;
++ case 0x02:
++ err = "Tx aborted";
++ adev->stats.tx_aborted_errors++;
++ break;
++ case 0x04:
++ err = "Tx desc wrong parameters";
++ adev->wstats.discard.misc++;
++ break;
++ case 0x08:
++ err = "WEP key not found";
++ adev->wstats.discard.misc++;
++ break;
++ case 0x10:
++ err = "MSDU lifetime timeout? - try changing "
++ "'iwconfig retry lifetime XXX'";
++ adev->wstats.discard.misc++;
++ break;
++ case 0x20:
++ err = "excessive Tx retries due to either distance "
++ "too high or unable to Tx or Tx frame error - "
++ "try changing 'iwconfig txpower XXX' or "
++ "'sens'itivity or 'retry'";
++ adev->wstats.discard.retries++;
++ /* Tx error 0x20 also seems to occur on
++ * overheating, so I'm not sure whether we
++ * actually want to do aggressive radio recalibration,
++ * since people maybe won't notice then that their hardware
++ * is slowly getting cooked...
++ * Or is it still a safe long distance from utter
++ * radio non-functionality despite many radio recalibs
++ * to final destructive overheating of the hardware?
++ * In this case we really should do recalib here...
++ * I guess the only way to find out is to do a
++ * potentially fatal self-experiment :-\
++ * Or maybe only recalib in case we're using Tx
++ * rate auto (on errors switching to lower speed
++ * --> less heat?) or 802.11 power save mode?
++ *
++ * ok, just do it. */
++ if (++adev->retry_errors_msg_ratelimit % 4 == 0) {
++ if (adev->retry_errors_msg_ratelimit <= 20) {
++ printk("%s: several excessive Tx "
++ "retry errors occurred, attempting "
++ "to recalibrate radio. Radio "
++ "drift might be caused by increasing "
++ "card temperature, please check the card "
++ "before it's too late!\n",
++ adev->ndev->name);
++ if (adev->retry_errors_msg_ratelimit == 20)
++ printk("disabling above message\n");
++ }
++
++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
++ }
++ break;
++ case 0x40:
++ err = "Tx buffer overflow";
++ adev->stats.tx_fifo_errors++;
++ break;
++ case 0x80:
++ err = "DMA error";
++ adev->wstats.discard.misc++;
++ break;
++ }
++ adev->stats.tx_errors++;
++ if (adev->stats.tx_errors <= 20)
++ printk("%s: tx error 0x%02X, buf %02u! (%s)\n",
++ adev->ndev->name, error, finger, err);
++ else
++ printk("%s: tx error 0x%02X, buf %02u!\n",
++ adev->ndev->name, error, finger);
++}
++
++
++unsigned int
++acxmem_l_clean_txdesc(acx_device_t *adev)
++{
++ txdesc_t *txdesc;
++ unsigned finger;
++ int num_cleaned;
++ u16 r111;
++ u8 error, ack_failures, rts_failures, rts_ok, r100, Ctl_8;
++ u32 acxmem;
++ txdesc_t tmptxdesc;
++
++ FN_ENTER;
++
++ /*
++ * Set up a template descriptor for re-initialization. The only
++ * things that get set are Ctl_8 and the rate, and the rate defaults
++ * to 1Mbps.
++ */
++ memset (&tmptxdesc, 0, sizeof (tmptxdesc));
++ tmptxdesc.Ctl_8 = DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG;
++ tmptxdesc.u.r1.rate = 0x0a;
++
++ if (unlikely(acx_debug & L_DEBUG))
++ log_txbuffer(adev);
++
++ log(L_BUFT, "tx: cleaning up bufs from %u\n", adev->tx_tail);
++
++ /* We know first descr which is not free yet. We advance it as far
++ ** as we see correct bits set in following descs (if next desc
++ ** is NOT free, we shouldn't advance at all). We know that in
++ ** front of tx_tail may be "holes" with isolated free descs.
++ ** We will catch up when all intermediate descs will be freed also */
++
++ finger = adev->tx_tail;
++ num_cleaned = 0;
++ while (likely(finger != adev->tx_head)) {
++ txdesc = get_txdesc(adev, finger);
++
++ /* If we allocated txdesc on tx path but then decided
++ ** to NOT use it, then it will be left as a free "bubble"
++ ** in the "allocated for tx" part of the ring.
++ ** We may meet it on the next ring pass here. */
++
++ /* stop if not marked as "tx finished" and "host owned" */
++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
++ if ((Ctl_8 & DESC_CTL_ACXDONE_HOSTOWN)
++ != DESC_CTL_ACXDONE_HOSTOWN) {
++ if (unlikely(!num_cleaned)) { /* maybe remove completely */
++ log(L_BUFT, "clean_txdesc: tail isn't free. "
++ "tail:%d head:%d\n",
++ adev->tx_tail, adev->tx_head);
++ }
++ break;
++ }
++
++ /* remember desc values... */
++ error = read_slavemem8 (adev, (u32) &(txdesc->error));
++ ack_failures = read_slavemem8 (adev, (u32) &(txdesc->ack_failures));
++ rts_failures = read_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_failures));
++ rts_ok = read_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_ok));
++ r100 = read_slavemem8 (adev, (u32) &(txdesc->u.r1.rate));
++ r111 = le16_to_cpu(read_slavemem16 (adev, (u32) &(txdesc->u.r2.rate111)));
++
++ /* need to check for certain error conditions before we
++ * clean the descriptor: we still need valid descr data here */
++ if (unlikely(0x30 & error)) {
++ /* only send IWEVTXDROP in case of retry or lifetime exceeded;
++ * all other errors mean we screwed up locally */
++ union iwreq_data wrqu;
++ wlan_hdr_t *hdr;
++ txhostdesc_t *hostdesc;
++
++ hostdesc = get_txhostdesc(adev, txdesc);
++ hdr = (wlan_hdr_t *)hostdesc->data;
++ MAC_COPY(wrqu.addr.sa_data, hdr->a1);
++ wireless_send_event(adev->ndev, IWEVTXDROP, &wrqu, NULL);
++ }
++
++ /*
++ * Free up the transmit data buffers
++ */
++ acxmem = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr));
++ if (acxmem) {
++ reclaim_acx_txbuf_space (adev, acxmem);
++ }
++
++ /* ...and free the desc by clearing all the fields
++ except the next pointer */
++ copy_to_slavemem (adev,
++ (u32) &(txdesc->HostMemPtr),
++ (u8 *) &(tmptxdesc.HostMemPtr),
++ sizeof (tmptxdesc) - sizeof(tmptxdesc.pNextDesc)
++ );
++
++ adev->tx_free++;
++ num_cleaned++;
++
++ if ((adev->tx_free >= TX_START_QUEUE)
++ && (adev->status == ACX_STATUS_4_ASSOCIATED)
++ && (acx_queue_stopped(adev->ndev))
++ ) {
++ log(L_BUF, "tx: wake queue (avail. Tx desc %u)\n",
++ adev->tx_free);
++ acx_wake_queue(adev->ndev, NULL);
++ }
++
++ /* do error checking, rate handling and logging
++ * AFTER having done the work, it's faster */
++
++ /* do rate handling */
++ if (adev->rate_auto) {
++ struct client *clt = get_txc(adev, txdesc);
++ if (clt) {
++ u16 cur = get_txr(adev, txdesc);
++ if (clt->rate_cur == cur) {
++ acx_l_handle_txrate_auto(adev, clt,
++ cur, /* intended rate */
++ r100, r111, /* actually used rate */
++ (error & 0x30), /* was there an error? */
++ TX_CNT + TX_CLEAN_BACKLOG - adev->tx_free);
++ }
++ }
++ }
++
++ if (unlikely(error))
++ handle_tx_error(adev, error, finger);
++
++ if (IS_ACX111(adev))
++ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u r111=%04X\n",
++ finger, ack_failures, rts_failures, rts_ok, r111);
++ else
++ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u rate=%u\n",
++ finger, ack_failures, rts_failures, rts_ok, r100);
++
++ /* update pointer for descr to be cleaned next */
++ finger = (finger + 1) % TX_CNT;
++ }
++
++ /* remember last position */
++ adev->tx_tail = finger;
++/* end: */
++ FN_EXIT1(num_cleaned);
++ return num_cleaned;
++}
++
++/* clean *all* Tx descriptors, and regardless of their previous state.
++ * Used for brute-force reset handling. */
++void
++acxmem_l_clean_txdesc_emergency(acx_device_t *adev)
++{
++ txdesc_t *txdesc;
++ int i;
++ u32 acxmem;
++
++ FN_ENTER;
++
++ for (i = 0; i < TX_CNT; i++) {
++ txdesc = get_txdesc(adev, i);
++
++ /* free it */
++ write_slavemem8 (adev, (u32) &(txdesc->ack_failures), 0);
++ write_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_failures), 0);
++ write_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_ok), 0);
++ write_slavemem8 (adev, (u32) &(txdesc->error), 0);
++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_HOSTOWN);
++
++ /*
++ * Clean up the memory allocated on the ACX for this transmit descriptor.
++ */
++ acxmem = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr));
++ if (acxmem) {
++ reclaim_acx_txbuf_space (adev, acxmem);
++ }
++
++ write_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr), 0);
++ }
++
++ adev->tx_free = TX_CNT;
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxmem_s_create_tx_host_desc_queue
++*/
++
++static void*
++allocate(acx_device_t *adev, size_t size, dma_addr_t *phy, const char *msg)
++{
++ void *ptr;
++ ptr = kmalloc (size, GFP_KERNEL);
++ /*
++ * The ACX can't use the physical address, so we'll have to fake it
++ * later and it might be handy to have the virtual address.
++ */
++ *phy = (dma_addr_t) NULL;
++
++ if (ptr) {
++ log(L_DEBUG, "%s sz=%d adr=0x%p phy=0x%08llx\n",
++ msg, (int)size, ptr, (unsigned long long)*phy);
++ memset(ptr, 0, size);
++ return ptr;
++ }
++ printk(KERN_ERR "acx: %s allocation FAILED (%d bytes)\n",
++ msg, (int)size);
++ return NULL;
++}
++
++
++/*
++ * In the generic slave memory access mode, most of the stuff in
++ * the txhostdesc_t is unused. It's only here because the rest of
++ * the ACX driver expects it to be since the PCI version uses indirect
++ * host memory organization with DMA. Since we're not using DMA the
++ * only use we have for the host descriptors is to store the packets
++ * on the way out.
++ */
++static int
++acxmem_s_create_tx_host_desc_queue(acx_device_t *adev)
++{
++ txhostdesc_t *hostdesc;
++ u8 *txbuf;
++ int i;
++
++ FN_ENTER;
++
++ /* allocate TX buffer */
++ adev->txbuf_area_size = TX_CNT * WLAN_A4FR_MAXLEN_WEP_FCS;
++
++ adev->txbuf_start = allocate(adev, adev->txbuf_area_size,
++ &adev->txbuf_startphy, "txbuf_start");
++ if (!adev->txbuf_start)
++ goto fail;
++
++ /* allocate the TX host descriptor queue pool */
++ adev->txhostdesc_area_size = TX_CNT * 2*sizeof(*hostdesc);
++
++ adev->txhostdesc_start = allocate(adev, adev->txhostdesc_area_size,
++ &adev->txhostdesc_startphy, "txhostdesc_start");
++ if (!adev->txhostdesc_start)
++ goto fail;
++
++ /* check for proper alignment of TX host descriptor pool */
++ if ((long) adev->txhostdesc_start & 3) {
++ printk("acx: driver bug: dma alloc returns unaligned address\n");
++ goto fail;
++ }
++
++ hostdesc = adev->txhostdesc_start;
++ txbuf = adev->txbuf_start;
++
++#if 0
++/* Each tx buffer is accessed by hardware via
++** txdesc -> txhostdesc(s) -> txbuffer(s).
++** We use only one txhostdesc per txdesc, but it looks like
++** acx111 is buggy: it accesses second txhostdesc
++** (via hostdesc.desc_phy_next field) even if
++** txdesc->length == hostdesc->length and thus
++** entire packet was placed into first txhostdesc.
++** Due to this bug acx111 hangs unless second txhostdesc
++** has le16_to_cpu(hostdesc.length) = 3 (or larger)
++** Storing NULL into hostdesc.desc_phy_next
++** doesn't seem to help.
++**
++** Update: although it worked on Xterasys XN-2522g
++** with len=3 trick, WG311v2 is even more bogus, doesn't work.
++** Keeping this code (#ifdef'ed out) for documentational purposes.
++*/
++ for (i = 0; i < TX_CNT*2; i++) {
++ hostdesc_phy += sizeof(*hostdesc);
++ if (!(i & 1)) {
++ hostdesc->data_phy = cpu2acx(txbuf_phy);
++ /* hostdesc->data_offset = ... */
++ /* hostdesc->reserved = ... */
++ hostdesc->Ctl_16 = cpu_to_le16(DESC_CTL_HOSTOWN);
++ /* hostdesc->length = ... */
++ hostdesc->desc_phy_next = cpu2acx(hostdesc_phy);
++ hostdesc->pNext = ptr2acx(NULL);
++ /* hostdesc->Status = ... */
++ /* below: non-hardware fields */
++ hostdesc->data = txbuf;
++
++ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS;
++ txbuf_phy += WLAN_A4FR_MAXLEN_WEP_FCS;
++ } else {
++ /* hostdesc->data_phy = ... */
++ /* hostdesc->data_offset = ... */
++ /* hostdesc->reserved = ... */
++ /* hostdesc->Ctl_16 = ... */
++ hostdesc->length = cpu_to_le16(3); /* bug workaround */
++ /* hostdesc->desc_phy_next = ... */
++ /* hostdesc->pNext = ... */
++ /* hostdesc->Status = ... */
++ /* below: non-hardware fields */
++ /* hostdesc->data = ... */
++ }
++ hostdesc++;
++ }
++#endif
++/* We initialize two hostdescs so that they point to adjacent
++** memory areas. Thus txbuf is really just a contiguous memory area */
++ for (i = 0; i < TX_CNT*2; i++) {
++ /* ->data is a non-hardware field: */
++ hostdesc->data = txbuf;
++
++ if (!(i & 1)) {
++ txbuf += WLAN_HDR_A3_LEN;
++ } else {
++ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_HDR_A3_LEN;
++ }
++ hostdesc++;
++ }
++ hostdesc--;
++
++ FN_EXIT1(OK);
++ return OK;
++fail:
++ printk("acx: create_tx_host_desc_queue FAILED\n");
++ /* dealloc will be done by free function on error case */
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***************************************************************
++** acxmem_s_create_rx_host_desc_queue
++*/
++/* the whole size of a data buffer (header plus data body)
++ * plus 32 bytes safety offset at the end */
++#define RX_BUFFER_SIZE (sizeof(rxbuffer_t) + 32)
++
++static int
++acxmem_s_create_rx_host_desc_queue(acx_device_t *adev)
++{
++ rxhostdesc_t *hostdesc;
++ rxbuffer_t *rxbuf;
++ int i;
++
++ FN_ENTER;
++
++ /* allocate the RX host descriptor queue pool */
++ adev->rxhostdesc_area_size = RX_CNT * sizeof(*hostdesc);
++
++ adev->rxhostdesc_start = allocate(adev, adev->rxhostdesc_area_size,
++ &adev->rxhostdesc_startphy, "rxhostdesc_start");
++ if (!adev->rxhostdesc_start)
++ goto fail;
++
++ /* check for proper alignment of RX host descriptor pool */
++ if ((long) adev->rxhostdesc_start & 3) {
++ printk("acx: driver bug: dma alloc returns unaligned address\n");
++ goto fail;
++ }
++
++ /* allocate Rx buffer pool which will be used by the acx
++ * to store the whole content of the received frames in it */
++ adev->rxbuf_area_size = RX_CNT * RX_BUFFER_SIZE;
++
++ adev->rxbuf_start = allocate(adev, adev->rxbuf_area_size,
++ &adev->rxbuf_startphy, "rxbuf_start");
++ if (!adev->rxbuf_start)
++ goto fail;
++
++ rxbuf = adev->rxbuf_start;
++ hostdesc = adev->rxhostdesc_start;
++
++ /* don't make any popular C programming pointer arithmetic mistakes
++ * here, otherwise I'll kill you...
++ * (and don't dare asking me why I'm warning you about that...) */
++ for (i = 0; i < RX_CNT; i++) {
++ hostdesc->data = rxbuf;
++ hostdesc->length = cpu_to_le16(RX_BUFFER_SIZE);
++ rxbuf++;
++ hostdesc++;
++ }
++ hostdesc--;
++ FN_EXIT1(OK);
++ return OK;
++fail:
++ printk("acx: create_rx_host_desc_queue FAILED\n");
++ /* dealloc will be done by free function on error case */
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***************************************************************
++** acxmem_s_create_hostdesc_queues
++*/
++int
++acxmem_s_create_hostdesc_queues(acx_device_t *adev)
++{
++ int result;
++ result = acxmem_s_create_tx_host_desc_queue(adev);
++ if (OK != result) return result;
++ result = acxmem_s_create_rx_host_desc_queue(adev);
++ return result;
++}
++
++
++/***************************************************************
++** acxmem_create_tx_desc_queue
++*/
++static void
++acxmem_create_tx_desc_queue(acx_device_t *adev, u32 tx_queue_start)
++{
++ txdesc_t *txdesc;
++ u32 clr;
++ int i;
++
++ FN_ENTER;
++
++ if (IS_ACX100(adev))
++ adev->txdesc_size = sizeof(*txdesc);
++ else
++ /* the acx111 txdesc is 4 bytes larger */
++ adev->txdesc_size = sizeof(*txdesc) + 4;
++
++ /*
++ * This refers to an ACX address, not one of ours
++ */
++ adev->txdesc_start = (txdesc_t *) tx_queue_start;
++
++ log(L_DEBUG, "adev->txdesc_start=%p\n",
++ adev->txdesc_start);
++
++ adev->tx_free = TX_CNT;
++ /* done by memset: adev->tx_head = 0; */
++ /* done by memset: adev->tx_tail = 0; */
++ txdesc = adev->txdesc_start;
++
++ if (IS_ACX111(adev)) {
++ /* ACX111 has a preinitialized Tx buffer! */
++ /* loop over whole send pool */
++ /* FIXME: do we have to do the hostmemptr stuff here?? */
++ for (i = 0; i < TX_CNT; i++) {
++ txdesc->Ctl_8 = DESC_CTL_HOSTOWN;
++ /* reserve two (hdr desc and payload desc) */
++ txdesc = advance_txdesc(adev, txdesc, 1);
++ }
++ } else {
++ /* ACX100 Tx buffer needs to be initialized by us */
++ /* clear whole send pool. sizeof is safe here (we are acx100) */
++
++ /*
++ * adev->txdesc_start refers to device memory, so we can't write
++ * directly to it.
++ */
++ clr = (u32) adev->txdesc_start;
++ while (clr < (u32) adev->txdesc_start + (TX_CNT * sizeof(*txdesc))) {
++ write_slavemem32 (adev, clr, 0);
++ clr += 4;
++ }
++
++ /* loop over whole send pool */
++ for (i = 0; i < TX_CNT; i++) {
++ log(L_DEBUG, "configure card tx descriptor: 0x%p, "
++ "size: 0x%X\n", txdesc, adev->txdesc_size);
++
++ /* initialise ctl */
++ /*
++ * No auto DMA here
++ */
++ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8),
++ (u8) (DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG));
++ /* done by memset(0): txdesc->Ctl2_8 = 0; */
++
++ /* point to next txdesc */
++ write_slavemem32 (adev, (u32) &(txdesc->pNextDesc),
++ (u32) cpu_to_le32 ((u8 *) txdesc + adev->txdesc_size));
++
++ /* go to the next one */
++ /* ++ is safe here (we are acx100) */
++ txdesc++;
++ }
++ /* go back to the last one */
++ txdesc--;
++ /* and point to the first making it a ring buffer */
++ write_slavemem32 (adev, (u32) &(txdesc->pNextDesc),
++ (u32) cpu_to_le32 (tx_queue_start));
++ }
++ FN_EXIT0;
++}
++
++
++/***************************************************************
++** acxmem_create_rx_desc_queue
++*/
++static void
++acxmem_create_rx_desc_queue(acx_device_t *adev, u32 rx_queue_start)
++{
++ rxdesc_t *rxdesc;
++ u32 mem_offs;
++ int i;
++
++ FN_ENTER;
++
++ /* done by memset: adev->rx_tail = 0; */
++
++ /* ACX111 doesn't need any further config: preconfigures itself.
++ * Simply print ring buffer for debugging */
++ if (IS_ACX111(adev)) {
++ /* rxdesc_start already set here */
++
++ adev->rxdesc_start = (rxdesc_t *) rx_queue_start;
++
++ rxdesc = adev->rxdesc_start;
++ for (i = 0; i < RX_CNT; i++) {
++ log(L_DEBUG, "rx descriptor %d @ 0x%p\n", i, rxdesc);
++ rxdesc = adev->rxdesc_start = (rxdesc_t *)
++ acx2cpu(rxdesc->pNextDesc);
++ }
++ } else {
++ /* we didn't pre-calculate rxdesc_start in case of ACX100 */
++ /* rxdesc_start should be right AFTER Tx pool */
++ adev->rxdesc_start = (rxdesc_t *)
++ ((u8 *) adev->txdesc_start + (TX_CNT * sizeof(txdesc_t)));
++ /* NB: sizeof(txdesc_t) above is valid because we know
++ ** we are in if (acx100) block. Beware of cut-n-pasting elsewhere!
++ ** acx111's txdesc is larger! */
++
++ mem_offs = (u32) adev->rxdesc_start;
++ while (mem_offs < (u32) adev->rxdesc_start + (RX_CNT * sizeof (*rxdesc))) {
++ write_slavemem32 (adev, mem_offs, 0);
++ mem_offs += 4;
++ }
++
++ /* loop over whole receive pool */
++ rxdesc = adev->rxdesc_start;
++ for (i = 0; i < RX_CNT; i++) {
++ log(L_DEBUG, "rx descriptor @ 0x%p\n", rxdesc);
++ /* point to next rxdesc */
++ write_slavemem32 (adev, (u32) &(rxdesc->pNextDesc),
++ (u32) cpu_to_le32 ((u8 *) rxdesc + sizeof(*rxdesc)));
++ /* go to the next one */
++ rxdesc++;
++ }
++ /* go to the last one */
++ rxdesc--;
++
++ /* and point to the first making it a ring buffer */
++ write_slavemem32 (adev, (u32) &(rxdesc->pNextDesc),
++ (u32) cpu_to_le32 (rx_queue_start));
++ }
++ FN_EXIT0;
++}
++
++
++/***************************************************************
++** acxmem_create_desc_queues
++*/
++void
++acxmem_create_desc_queues(acx_device_t *adev, u32 tx_queue_start, u32 rx_queue_start)
++{
++ u32 *p;
++ int i;
++
++ acxmem_create_tx_desc_queue(adev, tx_queue_start);
++ acxmem_create_rx_desc_queue(adev, rx_queue_start);
++ p = (u32 *) adev->acx_queue_indicator;
++ for (i = 0; i < 4; i++) {
++ write_slavemem32 (adev, (u32) p, 0);
++ p++;
++ }
++}
++
++
++/***************************************************************
++** acxmem_s_proc_diag_output
++*/
++char*
++acxmem_s_proc_diag_output(char *p, acx_device_t *adev)
++{
++ const char *rtl, *thd, *ttl;
++ txdesc_t *txdesc;
++ u8 Ctl_8;
++ rxdesc_t *rxdesc;
++ int i;
++ u32 tmp;
++ txdesc_t txd;
++ u8 buf[0x200];
++ int j, k;
++
++ FN_ENTER;
++
++#if DUMP_MEM_DURING_DIAG > 0
++ dump_acxmem (adev, 0, 0x10000);
++ panic ("dump finished");
++#endif
++
++ p += sprintf(p, "** Rx buf **\n");
++ rxdesc = adev->rxdesc_start;
++ if (rxdesc) for (i = 0; i < RX_CNT; i++) {
++ rtl = (i == adev->rx_tail) ? " [tail]" : "";
++ Ctl_8 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8));
++ if (Ctl_8 & DESC_CTL_HOSTOWN)
++ p += sprintf(p, "%02u (%02x) FULL%s\n", i, Ctl_8, rtl);
++ else
++ p += sprintf(p, "%02u (%02x) empty%s\n", i, Ctl_8, rtl);
++ rxdesc++;
++ }
++ p += sprintf(p, "** Tx buf (free %d, Linux netqueue %s) **\n", adev->tx_free,
++ acx_queue_stopped(adev->ndev) ? "STOPPED" : "running");
++
++ p += sprintf(p, "** Tx buf %d blocks total, %d available, free list head %04x\n",
++ adev->acx_txbuf_numblocks, adev->acx_txbuf_blocks_free, adev->acx_txbuf_free);
++ txdesc = adev->txdesc_start;
++ if (txdesc) {
++ for (i = 0; i < TX_CNT; i++) {
++ thd = (i == adev->tx_head) ? " [head]" : "";
++ ttl = (i == adev->tx_tail) ? " [tail]" : "";
++ copy_from_slavemem (adev, (u8 *) &txd, (u32) txdesc, sizeof (txd));
++ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
++ if (Ctl_8 & DESC_CTL_ACXDONE)
++ p += sprintf(p, "%02u ready to free (%02X)%s%s", i, Ctl_8, thd, ttl);
++ else if (Ctl_8 & DESC_CTL_HOSTOWN)
++ p += sprintf(p, "%02u available (%02X)%s%s", i, Ctl_8, thd, ttl);
++ else
++ p += sprintf(p, "%02u busy (%02X)%s%s", i, Ctl_8, thd, ttl);
++ tmp = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr));
++ if (tmp) {
++ p += sprintf (p, " %04x", tmp);
++ while ((tmp = read_slavemem32 (adev, (u32) tmp)) != 0x02000000) {
++ tmp <<= 5;
++ p += sprintf (p, " %04x", tmp);
++ }
++ }
++ p += sprintf (p, "\n");
++ p += sprintf (p, " %04x: %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %02x %02x %02x %02x\n"
++ "%02x %02x %02x %02x %04x\n",
++ (u32) txdesc,
++ txd.pNextDesc.v, txd.HostMemPtr.v, txd.AcxMemPtr.v, txd.tx_time,
++ txd.total_length, txd.Reserved,
++ txd.dummy[0], txd.dummy[1], txd.dummy[2], txd.dummy[3],
++ txd.Ctl_8, txd.Ctl2_8, txd.error, txd.ack_failures,
++ txd.u.rts.rts_failures, txd.u.rts.rts_ok, txd.u.r1.rate, txd.u.r1.queue_ctrl,
++ txd.queue_info
++ );
++ if (txd.AcxMemPtr.v) {
++ copy_from_slavemem (adev, buf, txd.AcxMemPtr.v, sizeof (buf));
++ for (j = 0; (j < txd.total_length) && (j<(sizeof(buf)-4)); j+=16) {
++ p += sprintf (p, " ");
++ for (k = 0; (k < 16) && (j+k < txd.total_length); k++) {
++ p += sprintf (p, " %02x", buf[j+k+4]);
++ }
++ p += sprintf (p, "\n");
++ }
++ }
++ txdesc = advance_txdesc(adev, txdesc, 1);
++ }
++ }
++
++ p += sprintf(p,
++ "\n"
++ "** Generic slave data **\n"
++ "irq_mask 0x%04x irq_status 0x%04x irq on acx 0x%04x\n"
++ "txbuf_start 0x%p, txbuf_area_size %u\n"
++ "txdesc_size %u, txdesc_start 0x%p\n"
++ "txhostdesc_start 0x%p, txhostdesc_area_size %u\n"
++ "txbuf start 0x%04x, txbuf size %d\n"
++ "rxdesc_start 0x%p\n"
++ "rxhostdesc_start 0x%p, rxhostdesc_area_size %u\n"
++ "rxbuf_start 0x%p, rxbuf_area_size %u\n",
++ adev->irq_mask, adev->irq_status, read_reg32(adev, IO_ACX_IRQ_STATUS_NON_DES),
++ adev->txbuf_start, adev->txbuf_area_size,
++ adev->txdesc_size, adev->txdesc_start,
++ adev->txhostdesc_start, adev->txhostdesc_area_size,
++ adev->acx_txbuf_start, adev->acx_txbuf_numblocks * adev->memblocksize,
++ adev->rxdesc_start,
++ adev->rxhostdesc_start, adev->rxhostdesc_area_size,
++ adev->rxbuf_start, adev->rxbuf_area_size);
++ FN_EXIT0;
++ return p;
++}
++
++
++/***********************************************************************
++*/
++int
++acxmem_proc_eeprom_output(char *buf, acx_device_t *adev)
++{
++ char *p = buf;
++ int i;
++
++ FN_ENTER;
++
++ for (i = 0; i < 0x400; i++) {
++ acxmem_read_eeprom_byte(adev, i, p++);
++ }
++
++ FN_EXIT1(p - buf);
++ return p - buf;
++}
++
++
++/***********************************************************************
++*/
++void
++acxmem_set_interrupt_mask(acx_device_t *adev)
++{
++ if (IS_ACX111(adev)) {
++ adev->irq_mask = (u16) ~(0
++ | HOST_INT_RX_DATA
++ | HOST_INT_TX_COMPLETE
++ /* | HOST_INT_TX_XFER */
++ /* | HOST_INT_RX_COMPLETE */
++ /* | HOST_INT_DTIM */
++ /* | HOST_INT_BEACON */
++ /* | HOST_INT_TIMER */
++ /* | HOST_INT_KEY_NOT_FOUND */
++ | HOST_INT_IV_ICV_FAILURE
++ | HOST_INT_CMD_COMPLETE
++ | HOST_INT_INFO
++ | HOST_INT_OVERFLOW
++ /* | HOST_INT_PROCESS_ERROR */
++ | HOST_INT_SCAN_COMPLETE
++ | HOST_INT_FCS_THRESHOLD
++ | HOST_INT_UNKNOWN
++ );
++ /* Or else acx100 won't signal cmd completion, right? */
++ adev->irq_mask_off = (u16)~( HOST_INT_CMD_COMPLETE ); /* 0xfdff */
++ } else {
++ adev->irq_mask = (u16) ~(0
++ | HOST_INT_RX_DATA
++ | HOST_INT_TX_COMPLETE
++ /* | HOST_INT_TX_XFER */
++ /* | HOST_INT_RX_COMPLETE */
++ /* | HOST_INT_DTIM */
++ /* | HOST_INT_BEACON */
++ /* | HOST_INT_TIMER */
++ /* | HOST_INT_KEY_NOT_FOUND */
++ /* | HOST_INT_IV_ICV_FAILURE */
++ | HOST_INT_CMD_COMPLETE
++ | HOST_INT_INFO
++ /* | HOST_INT_OVERFLOW */
++ /* | HOST_INT_PROCESS_ERROR */
++ | HOST_INT_SCAN_COMPLETE
++ /* | HOST_INT_FCS_THRESHOLD */
++ /* | HOST_INT_BEACON_MISSED */
++ );
++ adev->irq_mask_off = (u16)~( HOST_INT_UNKNOWN ); /* 0x7fff */
++ }
++}
++
++
++/***********************************************************************
++*/
++int
++acx100mem_s_set_tx_level(acx_device_t *adev, u8 level_dbm)
++{
++ struct acx111_ie_tx_level tx_level;
++
++ /* since it can be assumed that at least the Maxim radio has a
++ * maximum power output of 20dBm and since it also can be
++ * assumed that these values drive the DAC responsible for
++ * setting the linear Tx level, I'd guess that these values
++ * should be the corresponding linear values for a dBm value,
++ * in other words: calculate the values from that formula:
++ * Y [dBm] = 10 * log (X [mW])
++ * then scale the 0..63 value range onto the 1..100mW range (0..20 dBm)
++ * and you're done...
++ * Hopefully that's ok, but you never know if we're actually
++ * right... (especially since Windows XP doesn't seem to show
++ * actual Tx dBm values :-P) */
++
++ /* NOTE: on Maxim, value 30 IS 30mW, and value 10 IS 10mW - so the
++ * values are EXACTLY mW!!! Not sure about RFMD and others,
++ * though... */
++ static const u8 dbm2val_maxim[21] = {
++ 63, 63, 63, 62,
++ 61, 61, 60, 60,
++ 59, 58, 57, 55,
++ 53, 50, 47, 43,
++ 38, 31, 23, 13,
++ 0
++ };
++ static const u8 dbm2val_rfmd[21] = {
++ 0, 0, 0, 1,
++ 2, 2, 3, 3,
++ 4, 5, 6, 8,
++ 10, 13, 16, 20,
++ 25, 32, 41, 50,
++ 63
++ };
++ const u8 *table;
++
++ switch (adev->radio_type) {
++ case RADIO_MAXIM_0D:
++ table = &dbm2val_maxim[0];
++ break;
++ case RADIO_RFMD_11:
++ case RADIO_RALINK_15:
++ table = &dbm2val_rfmd[0];
++ break;
++ default:
++ printk("%s: unknown/unsupported radio type, "
++ "cannot modify tx power level yet!\n",
++ adev->ndev->name);
++ return NOT_OK;
++ }
++ /*
++ * The hx4700 EEPROM, at least, only supports 1 power setting. The configure
++ * routine matches the PA bias with the gain, so just use its default value.
++ * The values are: 0x2b for the gain and 0x03 for the PA bias. The firmware
++ * writes the gain level to the Tx gain control DAC and the PA bias to the Maxim
++ * radio's PA bias register. The firmware limits itself to 0 - 64 when writing to the
++ * gain control DAC.
++ *
++ * Physically between the ACX and the radio, higher Tx gain control DAC values result
++ * in less power output; 0 volts to the Maxim radio results in the highest output power
++ * level, which I'm assuming matches up with 0 in the Tx Gain DAC register.
++ *
++ * Although there is only the 1 power setting, one of the radio firmware functions adjusts
++ * the transmit power level up and down. That function is called by the ACX FIQ handler
++ * under certain conditions.
++ */
++ tx_level.level = 1;
++ //return acx_s_configure(adev, &tx_level, ACX1xx_IE_DOT11_TX_POWER_LEVEL);
++
++ printk("%s: changing radio power level to %u dBm (%u)\n",
++ adev->ndev->name, level_dbm, table[level_dbm]);
++ acxmem_s_write_phy_reg(adev, 0x11, table[level_dbm]);
++
++ return 0;
++}
++
++
++static struct platform_driver
++acxmem_drv_id = {
++ .driver = {
++ .name = "acx-mem",
++ },
++ .probe = acxmem_e_probe,
++ .remove = __devexit_p(acxmem_e_remove),
++#ifdef CONFIG_PM
++ .suspend = acxmem_e_suspend,
++ .resume = acxmem_e_resume
++#endif /* CONFIG_PM */
++};
++
++
++/***********************************************************************
++** acxmem_e_init_module
++**
++** Module initialization routine, called once at module load time
++*/
++int __init
++acxmem_e_init_module(void)
++{
++ int res;
++
++ FN_ENTER;
++
++#if (ACX_IO_WIDTH==32)
++ printk("acx: compiled to use 32bit I/O access. "
++ "I/O timing issues might occur, such as "
++ "non-working firmware upload. Report them\n");
++#else
++ printk("acx: compiled to use 16bit I/O access only "
++ "(compatibility mode)\n");
++#endif
++
++#ifdef __LITTLE_ENDIAN
++#define ENDIANNESS_STRING "running on a little-endian CPU\n"
++#else
++#define ENDIANNESS_STRING "running on a BIG-ENDIAN CPU\n"
++#endif
++ log(L_INIT,
++ ENDIANNESS_STRING
++ "PCI module " ACX_RELEASE " initialized, "
++ "waiting for cards to probe...\n"
++ );
++
++ res = platform_driver_register (&acxmem_drv_id);
++ FN_EXIT1(res);
++ return res;
++}
++
++
++/***********************************************************************
++** acxmem_e_cleanup_module
++**
++** Called at module unload time. This is our last chance to
++** clean up after ourselves.
++*/
++void __exit
++acxmem_e_cleanup_module(void)
++{
++ FN_ENTER;
++
++ printk ("cleanup_module\n");
++ platform_driver_unregister( &acxmem_drv_id );
++
++ FN_EXIT0;
++}
++
++void acxmem_e_release(struct device *dev) {
++}
++
++MODULE_AUTHOR( "Todd Blumer <todd@sdgsystems.com>" );
++MODULE_DESCRIPTION( "ACX Slave Memory Driver" );
++MODULE_LICENSE( "GPL" );
++
+Index: linux-2.6.22/drivers/net/wireless/acx/pci.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/pci.c 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,4234 @@
++/***********************************************************************
++** Copyright (C) 2003 ACX100 Open Source Project
++**
++** The contents of this file are subject to the Mozilla Public
++** License Version 1.1 (the "License"); you may not use this file
++** except in compliance with the License. You may obtain a copy of
++** the License at http://www.mozilla.org/MPL/
++**
++** Software distributed under the License is distributed on an "AS
++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
++** implied. See the License for the specific language governing
++** rights and limitations under the License.
++**
++** Alternatively, the contents of this file may be used under the
++** terms of the GNU Public License version 2 (the "GPL"), in which
++** case the provisions of the GPL are applicable instead of the
++** above. If you wish to allow the use of your version of this file
++** only under the terms of the GPL and not to allow others to use
++** your version of this file under the MPL, indicate your decision
++** by deleting the provisions above and replace them with the notice
++** and other provisions required by the GPL. If you do not delete
++** the provisions above, a recipient may use your version of this
++** file under either the MPL or the GPL.
++** ---------------------------------------------------------------------
++** Inquiries regarding the ACX100 Open Source Project can be
++** made directly to:
++**
++** acx100-users@lists.sf.net
++** http://acx100.sf.net
++** ---------------------------------------------------------------------
++*/
++#define ACX_PCI 1
++
++#include <linux/version.h>
++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
++#include <linux/config.h>
++#endif
++
++/* Linux 2.6.18+ uses <linux/utsrelease.h> */
++#ifndef UTS_RELEASE
++#include <linux/utsrelease.h>
++#endif
++
++#include <linux/compiler.h> /* required for Lx 2.6.8 ?? */
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/sched.h>
++#include <linux/types.h>
++#include <linux/skbuff.h>
++#include <linux/slab.h>
++#include <linux/if_arp.h>
++#include <linux/rtnetlink.h>
++#include <linux/wireless.h>
++#include <net/iw_handler.h>
++#include <linux/netdevice.h>
++#include <linux/ioport.h>
++#include <linux/pci.h>
++#include <linux/pm.h>
++#include <linux/vmalloc.h>
++#include <linux/dma-mapping.h>
++
++#include "acx.h"
++
++
++/***********************************************************************
++*/
++#define PCI_TYPE (PCI_USES_MEM | PCI_ADDR0 | PCI_NO_ACPI_WAKE)
++#define PCI_ACX100_REGION1 0x01
++#define PCI_ACX100_REGION1_SIZE 0x1000 /* Memory size - 4K bytes */
++#define PCI_ACX100_REGION2 0x02
++#define PCI_ACX100_REGION2_SIZE 0x10000 /* Memory size - 64K bytes */
++
++#define PCI_ACX111_REGION1 0x00
++#define PCI_ACX111_REGION1_SIZE 0x2000 /* Memory size - 8K bytes */
++#define PCI_ACX111_REGION2 0x01
++#define PCI_ACX111_REGION2_SIZE 0x20000 /* Memory size - 128K bytes */
++
++/* Texas Instruments Vendor ID */
++#define PCI_VENDOR_ID_TI 0x104c
++
++/* ACX100 22Mb/s WLAN controller */
++#define PCI_DEVICE_ID_TI_TNETW1100A 0x8400
++#define PCI_DEVICE_ID_TI_TNETW1100B 0x8401
++
++/* ACX111 54Mb/s WLAN controller */
++#define PCI_DEVICE_ID_TI_TNETW1130 0x9066
++
++/* PCI Class & Sub-Class code, Network-'Other controller' */
++#define PCI_CLASS_NETWORK_OTHERS 0x0280
++
++#define CARD_EEPROM_ID_SIZE 6
++
++#ifndef PCI_D0
++/* From include/linux/pci.h */
++#define PCI_D0 0
++#define PCI_D1 1
++#define PCI_D2 2
++#define PCI_D3hot 3
++#define PCI_D3cold 4
++#define PCI_UNKNOWN 5
++#define PCI_POWER_ERROR -1
++#endif
++
++
++/***********************************************************************
++*/
++static void acxpci_i_tx_timeout(struct net_device *ndev);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
++static irqreturn_t acxpci_i_interrupt(int irq, void *dev_id);
++#else
++static irqreturn_t acxpci_i_interrupt(int irq, void *dev_id, struct pt_regs *regs);
++#endif
++static void acxpci_i_set_multicast_list(struct net_device *ndev);
++
++static int acxpci_e_open(struct net_device *ndev);
++static int acxpci_e_close(struct net_device *ndev);
++static void acxpci_s_up(struct net_device *ndev);
++static void acxpci_s_down(struct net_device *ndev);
++
++
++/***********************************************************************
++** Register access
++*/
++
++/* Pick one */
++/* #define INLINE_IO static */
++#define INLINE_IO static inline
++
++INLINE_IO u32
++read_reg32(acx_device_t *adev, unsigned int offset)
++{
++#if ACX_IO_WIDTH == 32
++ return readl((u8 *)adev->iobase + adev->io[offset]);
++#else
++ return readw((u8 *)adev->iobase + adev->io[offset])
++ + (readw((u8 *)adev->iobase + adev->io[offset] + 2) << 16);
++#endif
++}
++
++INLINE_IO u16
++read_reg16(acx_device_t *adev, unsigned int offset)
++{
++ return readw((u8 *)adev->iobase + adev->io[offset]);
++}
++
++INLINE_IO u8
++read_reg8(acx_device_t *adev, unsigned int offset)
++{
++ return readb((u8 *)adev->iobase + adev->io[offset]);
++}
++
++INLINE_IO void
++write_reg32(acx_device_t *adev, unsigned int offset, u32 val)
++{
++#if ACX_IO_WIDTH == 32
++ writel(val, (u8 *)adev->iobase + adev->io[offset]);
++#else
++ writew(val & 0xffff, (u8 *)adev->iobase + adev->io[offset]);
++ writew(val >> 16, (u8 *)adev->iobase + adev->io[offset] + 2);
++#endif
++}
++
++INLINE_IO void
++write_reg16(acx_device_t *adev, unsigned int offset, u16 val)
++{
++ writew(val, (u8 *)adev->iobase + adev->io[offset]);
++}
++
++INLINE_IO void
++write_reg8(acx_device_t *adev, unsigned int offset, u8 val)
++{
++ writeb(val, (u8 *)adev->iobase + adev->io[offset]);
++}
++
++/* Handle PCI posting properly:
++ * Make sure that writes reach the adapter in case they require to be executed
++ * *before* the next write, by reading a random (and safely accessible) register.
++ * This call has to be made if there is no read following (which would flush the data
++ * to the adapter), yet the written data has to reach the adapter immediately. */
++INLINE_IO void
++write_flush(acx_device_t *adev)
++{
++ /* readb(adev->iobase + adev->io[IO_ACX_INFO_MAILBOX_OFFS]); */
++ /* faster version (accesses the first register, IO_ACX_SOFT_RESET,
++ * which should also be safe): */
++ readb(adev->iobase);
++}
++
++INLINE_IO int
++adev_present(acx_device_t *adev)
++{
++ /* fast version (accesses the first register, IO_ACX_SOFT_RESET,
++ * which should be safe): */
++ return readl(adev->iobase) != 0xffffffff;
++}
++
++
++/***********************************************************************
++*/
++static inline txdesc_t*
++get_txdesc(acx_device_t *adev, int index)
++{
++ return (txdesc_t*) (((u8*)adev->txdesc_start) + index * adev->txdesc_size);
++}
++
++static inline txdesc_t*
++advance_txdesc(acx_device_t *adev, txdesc_t* txdesc, int inc)
++{
++ return (txdesc_t*) (((u8*)txdesc) + inc * adev->txdesc_size);
++}
++
++static txhostdesc_t*
++get_txhostdesc(acx_device_t *adev, txdesc_t* txdesc)
++{
++ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return NULL;
++ }
++ index /= adev->txdesc_size;
++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return NULL;
++ }
++ return &adev->txhostdesc_start[index*2];
++}
++
++static inline client_t*
++get_txc(acx_device_t *adev, txdesc_t* txdesc)
++{
++ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return NULL;
++ }
++ index /= adev->txdesc_size;
++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return NULL;
++ }
++ return adev->txc[index];
++}
++
++static inline u16
++get_txr(acx_device_t *adev, txdesc_t* txdesc)
++{
++ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
++ index /= adev->txdesc_size;
++ return adev->txr[index];
++}
++
++static inline void
++put_txcr(acx_device_t *adev, txdesc_t* txdesc, client_t* c, u16 r111)
++{
++ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
++ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return;
++ }
++ index /= adev->txdesc_size;
++ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
++ printk("bad txdesc ptr %p\n", txdesc);
++ return;
++ }
++ adev->txc[index] = c;
++ adev->txr[index] = r111;
++}
++
++
++/***********************************************************************
++** EEPROM and PHY read/write helpers
++*/
++/***********************************************************************
++** acxpci_read_eeprom_byte
++**
++** Function called to read an octet in the EEPROM.
++**
++** This function is used by acxpci_e_probe to check if the
++** connected card is a legal one or not.
++**
++** Arguments:
++** adev ptr to acx_device structure
++** addr address to read in the EEPROM
++** charbuf ptr to a char. This is where the read octet
++** will be stored
++*/
++int
++acxpci_read_eeprom_byte(acx_device_t *adev, u32 addr, u8 *charbuf)
++{
++ int result;
++ int count;
++
++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr);
++ write_flush(adev);
++ write_reg32(adev, IO_ACX_EEPROM_CTL, 2);
++
++ count = 0xffff;
++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
++ /* scheduling away instead of CPU burning loop
++ * doesn't seem to work here at all:
++ * awful delay, sometimes also failure.
++ * Doesn't matter anyway (only small delay). */
++ if (unlikely(!--count)) {
++ printk("%s: timeout waiting for EEPROM read\n",
++ adev->ndev->name);
++ result = NOT_OK;
++ goto fail;
++ }
++ cpu_relax();
++ }
++
++ *charbuf = read_reg8(adev, IO_ACX_EEPROM_DATA);
++ log(L_DEBUG, "EEPROM at 0x%04X = 0x%02X\n", addr, *charbuf);
++ result = OK;
++
++fail:
++ return result;
++}
++
++
++/***********************************************************************
++** We don't lock hw accesses here since we never r/w eeprom in IRQ
++** Note: this function sleeps only because of GFP_KERNEL alloc
++*/
++#ifdef UNUSED
++int
++acxpci_s_write_eeprom(acx_device_t *adev, u32 addr, u32 len, const u8 *charbuf)
++{
++ u8 *data_verify = NULL;
++ unsigned long flags;
++ int count, i;
++ int result = NOT_OK;
++ u16 gpio_orig;
++
++ printk("acx: WARNING! I would write to EEPROM now. "
++ "Since I really DON'T want to unless you know "
++ "what you're doing (THIS CODE WILL PROBABLY "
++ "NOT WORK YET!), I will abort that now. And "
++ "definitely make sure to make a "
++ "/proc/driver/acx_wlan0_eeprom backup copy first!!! "
++ "(the EEPROM content includes the PCI config header!! "
++ "If you kill important stuff, then you WILL "
++ "get in trouble and people DID get in trouble already)\n");
++ return OK;
++
++ FN_ENTER;
++
++ data_verify = kmalloc(len, GFP_KERNEL);
++ if (!data_verify) {
++ goto end;
++ }
++
++ /* first we need to enable the OE (EEPROM Output Enable) GPIO line
++ * to be able to write to the EEPROM.
++ * NOTE: an EEPROM writing success has been reported,
++ * but you probably have to modify GPIO_OUT, too,
++ * and you probably need to activate a different GPIO
++ * line instead! */
++ gpio_orig = read_reg16(adev, IO_ACX_GPIO_OE);
++ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig & ~1);
++ write_flush(adev);
++
++ /* ok, now start writing the data out */
++ for (i = 0; i < len; i++) {
++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i);
++ write_reg32(adev, IO_ACX_EEPROM_DATA, *(charbuf + i));
++ write_flush(adev);
++ write_reg32(adev, IO_ACX_EEPROM_CTL, 1);
++
++ count = 0xffff;
++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
++ if (unlikely(!--count)) {
++ printk("WARNING, DANGER!!! "
++ "Timeout waiting for EEPROM write\n");
++ goto end;
++ }
++ cpu_relax();
++ }
++ }
++
++ /* disable EEPROM writing */
++ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig);
++ write_flush(adev);
++
++ /* now start a verification run */
++ for (i = 0; i < len; i++) {
++ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
++ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i);
++ write_flush(adev);
++ write_reg32(adev, IO_ACX_EEPROM_CTL, 2);
++
++ count = 0xffff;
++ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
++ if (unlikely(!--count)) {
++ printk("timeout waiting for EEPROM read\n");
++ goto end;
++ }
++ cpu_relax();
++ }
++
++ data_verify[i] = read_reg16(adev, IO_ACX_EEPROM_DATA);
++ }
++
++ if (0 == memcmp(charbuf, data_verify, len))
++ result = OK; /* read data matches, success */
++
++end:
++ kfree(data_verify);
++ FN_EXIT1(result);
++ return result;
++}
++#endif /* UNUSED */
++
++
++/***********************************************************************
++** acxpci_s_read_phy_reg
++**
++** Messing with rx/tx disabling and enabling here
++** (write_reg32(adev, IO_ACX_ENABLE, 0b000000xx)) kills traffic
++*/
++int
++acxpci_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf)
++{
++ int result = NOT_OK;
++ int count;
++
++ FN_ENTER;
++
++ write_reg32(adev, IO_ACX_PHY_ADDR, reg);
++ write_flush(adev);
++ write_reg32(adev, IO_ACX_PHY_CTL, 2);
++
++ count = 0xffff;
++ while (read_reg32(adev, IO_ACX_PHY_CTL)) {
++ /* scheduling away instead of CPU burning loop
++ * doesn't seem to work here at all:
++ * awful delay, sometimes also failure.
++ * Doesn't matter anyway (only small delay). */
++ if (unlikely(!--count)) {
++ printk("%s: timeout waiting for phy read\n",
++ adev->ndev->name);
++ *charbuf = 0;
++ goto fail;
++ }
++ cpu_relax();
++ }
++
++ log(L_DEBUG, "count was %u\n", count);
++ *charbuf = read_reg8(adev, IO_ACX_PHY_DATA);
++
++ log(L_DEBUG, "radio PHY at 0x%04X = 0x%02X\n", *charbuf, reg);
++ result = OK;
++ goto fail; /* silence compiler warning */
++fail:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++*/
++int
++acxpci_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value)
++{
++ FN_ENTER;
++
++ /* mprusko said that 32bit accesses result in distorted sensitivity
++ * on his card. Unconfirmed, looks like it's not true (most likely since we
++ * now properly flush writes). */
++ write_reg32(adev, IO_ACX_PHY_DATA, value);
++ write_reg32(adev, IO_ACX_PHY_ADDR, reg);
++ write_flush(adev);
++ write_reg32(adev, IO_ACX_PHY_CTL, 1);
++ write_flush(adev);
++ log(L_DEBUG, "radio PHY write 0x%02X at 0x%04X\n", value, reg);
++
++ FN_EXIT1(OK);
++ return OK;
++}
++
++
++#define NO_AUTO_INCREMENT 1
++
++/***********************************************************************
++** acxpci_s_write_fw
++**
++** Write the firmware image into the card.
++**
++** Arguments:
++** adev wlan device structure
++** fw_image firmware image.
++**
++** Returns:
++** 1 firmware image corrupted
++** 0 success
++*/
++static int
++acxpci_s_write_fw(acx_device_t *adev, const firmware_image_t *fw_image, u32 offset)
++{
++ int len, size;
++ u32 sum, v32;
++ /* we skip the first four bytes which contain the control sum */
++ const u8 *p = (u8*)fw_image + 4;
++
++ /* start the image checksum by adding the image size value */
++ sum = p[0]+p[1]+p[2]+p[3];
++ p += 4;
++
++ write_reg32(adev, IO_ACX_SLV_END_CTL, 0);
++
++#if NO_AUTO_INCREMENT
++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */
++#else
++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */
++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */
++ write_flush(adev);
++#endif
++
++ len = 0;
++ size = le32_to_cpu(fw_image->size) & (~3);
++
++ while (likely(len < size)) {
++ v32 = be32_to_cpu(*(u32*)p);
++ sum += p[0]+p[1]+p[2]+p[3];
++ p += 4;
++ len += 4;
++
++#if NO_AUTO_INCREMENT
++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4);
++ write_flush(adev);
++#endif
++ write_reg32(adev, IO_ACX_SLV_MEM_DATA, v32);
++ }
++
++ log(L_DEBUG, "firmware written, size:%d sum1:%x sum2:%x\n",
++ size, sum, le32_to_cpu(fw_image->chksum));
++
++ /* compare our checksum with the stored image checksum */
++ return (sum != le32_to_cpu(fw_image->chksum));
++}
++
++
++/***********************************************************************
++** acxpci_s_validate_fw
++**
++** Compare the firmware image given with
++** the firmware image written into the card.
++**
++** Arguments:
++** adev wlan device structure
++** fw_image firmware image.
++**
++** Returns:
++** NOT_OK firmware image corrupted or not correctly written
++** OK success
++*/
++static int
++acxpci_s_validate_fw(acx_device_t *adev, const firmware_image_t *fw_image,
++ u32 offset)
++{
++ u32 sum, v32, w32;
++ int len, size;
++ int result = OK;
++ /* we skip the first four bytes which contain the control sum */
++ const u8 *p = (u8*)fw_image + 4;
++
++ /* start the image checksum by adding the image size value */
++ sum = p[0]+p[1]+p[2]+p[3];
++ p += 4;
++
++ write_reg32(adev, IO_ACX_SLV_END_CTL, 0);
++
++#if NO_AUTO_INCREMENT
++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */
++#else
++ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */
++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */
++#endif
++
++ len = 0;
++ size = le32_to_cpu(fw_image->size) & (~3);
++
++ while (likely(len < size)) {
++ v32 = be32_to_cpu(*(u32*)p);
++ p += 4;
++ len += 4;
++
++#if NO_AUTO_INCREMENT
++ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4);
++#endif
++ w32 = read_reg32(adev, IO_ACX_SLV_MEM_DATA);
++
++ if (unlikely(w32 != v32)) {
++ printk("acx: FATAL: firmware upload: "
++ "data parts at offset %d don't match (0x%08X vs. 0x%08X)! "
++ "I/O timing issues or defective memory, with DWL-xx0+? "
++ "ACX_IO_WIDTH=16 may help. Please report\n",
++ len, v32, w32);
++ result = NOT_OK;
++ break;
++ }
++
++ sum += (u8)w32 + (u8)(w32>>8) + (u8)(w32>>16) + (u8)(w32>>24);
++ }
++
++ /* sum control verification */
++ if (result != NOT_OK) {
++ if (sum != le32_to_cpu(fw_image->chksum)) {
++ printk("acx: FATAL: firmware upload: "
++ "checksums don't match!\n");
++ result = NOT_OK;
++ }
++ }
++
++ return result;
++}
++
++
++/***********************************************************************
++** acxpci_s_upload_fw
++**
++** Called from acx_reset_dev
++*/
++static int
++acxpci_s_upload_fw(acx_device_t *adev)
++{
++ firmware_image_t *fw_image = NULL;
++ int res = NOT_OK;
++ int try;
++ u32 file_size;
++ char filename[sizeof("tiacx1NNcNN")];
++
++ FN_ENTER;
++
++ /* print exact chipset and radio ID to make sure people really get a clue on which files exactly they are supposed to provide,
++ * since firmware loading is the biggest enduser PITA with these chipsets.
++ * Not printing radio ID in 0xHEX in order to not confuse them into wrong file naming */
++ printk( "acx: need to load firmware for acx1%02d chipset with radio ID %02x, please provide via firmware hotplug:\n"
++ "acx: either one file only (<c>ombined firmware image file, radio-specific) or two files (radio-less base image file *plus* separate <r>adio-specific extension file)\n",
++ IS_ACX111(adev)*11, adev->radio_type);
++
++ /* Try combined, then main image */
++ adev->need_radio_fw = 0;
++ snprintf(filename, sizeof(filename), "tiacx1%02dc%02X",
++ IS_ACX111(adev)*11, adev->radio_type);
++
++ fw_image = acx_s_read_fw(&adev->pdev->dev, filename, &file_size);
++ if (!fw_image) {
++ adev->need_radio_fw = 1;
++ filename[sizeof("tiacx1NN")-1] = '\0';
++ fw_image = acx_s_read_fw(&adev->pdev->dev, filename, &file_size);
++ if (!fw_image) {
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++ }
++ }
++
++ for (try = 1; try <= 5; try++) {
++ res = acxpci_s_write_fw(adev, fw_image, 0);
++ log(L_DEBUG|L_INIT, "acx_write_fw (main/combined): %d\n", res);
++ if (OK == res) {
++ res = acxpci_s_validate_fw(adev, fw_image, 0);
++ log(L_DEBUG|L_INIT, "acx_validate_fw "
++ "(main/combined): %d\n", res);
++ }
++
++ if (OK == res) {
++ SET_BIT(adev->dev_state_mask, ACX_STATE_FW_LOADED);
++ break;
++ }
++ printk("acx: firmware upload attempt #%d FAILED, "
++ "retrying...\n", try);
++ acx_s_msleep(1000); /* better wait for a while... */
++ }
++
++ vfree(fw_image);
++
++ FN_EXIT1(res);
++ return res;
++}
++
++
++/***********************************************************************
++** acxpci_s_upload_radio
++**
++** Uploads the appropriate radio module firmware into the card.
++*/
++int
++acxpci_s_upload_radio(acx_device_t *adev)
++{
++ acx_ie_memmap_t mm;
++ firmware_image_t *radio_image;
++ acx_cmd_radioinit_t radioinit;
++ int res = NOT_OK;
++ int try;
++ u32 offset;
++ u32 size;
++ char filename[sizeof("tiacx1NNrNN")];
++
++ if (!adev->need_radio_fw) return OK;
++
++ FN_ENTER;
++
++ acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP);
++ offset = le32_to_cpu(mm.CodeEnd);
++
++ snprintf(filename, sizeof(filename), "tiacx1%02dr%02X",
++ IS_ACX111(adev)*11,
++ adev->radio_type);
++ radio_image = acx_s_read_fw(&adev->pdev->dev, filename, &size);
++ if (!radio_image) {
++ printk("acx: can't load radio module '%s'\n", filename);
++ goto fail;
++ }
++
++ acx_s_issue_cmd(adev, ACX1xx_CMD_SLEEP, NULL, 0);
++
++ for (try = 1; try <= 5; try++) {
++ res = acxpci_s_write_fw(adev, radio_image, offset);
++ log(L_DEBUG|L_INIT, "acx_write_fw (radio): %d\n", res);
++ if (OK == res) {
++ res = acxpci_s_validate_fw(adev, radio_image, offset);
++ log(L_DEBUG|L_INIT, "acx_validate_fw (radio): %d\n", res);
++ }
++
++ if (OK == res)
++ break;
++ printk("acx: radio firmware upload attempt #%d FAILED, "
++ "retrying...\n", try);
++ acx_s_msleep(1000); /* better wait for a while... */
++ }
++
++ acx_s_issue_cmd(adev, ACX1xx_CMD_WAKE, NULL, 0);
++ radioinit.offset = cpu_to_le32(offset);
++ /* no endian conversion needed, remains in card CPU area: */
++ radioinit.len = radio_image->size;
++
++ vfree(radio_image);
++
++ if (OK != res)
++ goto fail;
++
++ /* will take a moment so let's have a big timeout */
++ acx_s_issue_cmd_timeo(adev, ACX1xx_CMD_RADIOINIT,
++ &radioinit, sizeof(radioinit), CMD_TIMEOUT_MS(1000));
++
++ res = acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP);
++fail:
++ FN_EXIT1(res);
++ return res;
++}
++
++
++/***********************************************************************
++** acxpci_l_reset_mac
++**
++** MAC will be reset
++** Call context: reset_dev
++*/
++static void
++acxpci_l_reset_mac(acx_device_t *adev)
++{
++ u16 temp;
++
++ FN_ENTER;
++
++ /* halt eCPU */
++ temp = read_reg16(adev, IO_ACX_ECPU_CTRL) | 0x1;
++ write_reg16(adev, IO_ACX_ECPU_CTRL, temp);
++
++ /* now do soft reset of eCPU, set bit */
++ temp = read_reg16(adev, IO_ACX_SOFT_RESET) | 0x1;
++ log(L_DEBUG, "%s: enable soft reset...\n", __func__);
++ write_reg16(adev, IO_ACX_SOFT_RESET, temp);
++ write_flush(adev);
++
++ /* now clear bit again: deassert eCPU reset */
++ log(L_DEBUG, "%s: disable soft reset and go to init mode...\n", __func__);
++ write_reg16(adev, IO_ACX_SOFT_RESET, temp & ~0x1);
++
++ /* now start a burst read from initial EEPROM */
++ temp = read_reg16(adev, IO_ACX_EE_START) | 0x1;
++ write_reg16(adev, IO_ACX_EE_START, temp);
++ write_flush(adev);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxpci_s_verify_init
++*/
++static int
++acxpci_s_verify_init(acx_device_t *adev)
++{
++ int result = NOT_OK;
++ unsigned long timeout;
++
++ FN_ENTER;
++
++ timeout = jiffies + 2*HZ;
++ for (;;) {
++ u16 irqstat = read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES);
++ if (irqstat & HOST_INT_FCS_THRESHOLD) {
++ result = OK;
++ write_reg16(adev, IO_ACX_IRQ_ACK, HOST_INT_FCS_THRESHOLD);
++ break;
++ }
++ if (time_after(jiffies, timeout))
++ break;
++ /* Init may take up to ~0.5 sec total */
++ acx_s_msleep(50);
++ }
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** A few low-level helpers
++**
++** Note: these functions are not protected by lock
++** and thus are never allowed to be called from IRQ.
++** Also they must not race with fw upload which uses same hw regs
++*/
++
++/***********************************************************************
++** acxpci_write_cmd_type_status
++*/
++
++static inline void
++acxpci_write_cmd_type_status(acx_device_t *adev, u16 type, u16 status)
++{
++ writel(type | (status << 16), adev->cmd_area);
++ write_flush(adev);
++}
++
++
++/***********************************************************************
++** acxpci_read_cmd_type_status
++*/
++static u32
++acxpci_read_cmd_type_status(acx_device_t *adev)
++{
++ u32 cmd_type, cmd_status;
++
++ cmd_type = readl(adev->cmd_area);
++ cmd_status = (cmd_type >> 16);
++ cmd_type = (u16)cmd_type;
++
++ log(L_CTL, "cmd_type:%04X cmd_status:%04X [%s]\n",
++ cmd_type, cmd_status,
++ acx_cmd_status_str(cmd_status));
++
++ return cmd_status;
++}
++
++
++/***********************************************************************
++** acxpci_s_reset_dev
++**
++** Arguments:
++** netdevice that contains the adev variable
++** Returns:
++** NOT_OK on fail
++** OK on success
++** Side effects:
++** device is hard reset
++** Call context:
++** acxpci_e_probe
++** Comment:
++** This resets the device using low level hardware calls
++** as well as uploads and verifies the firmware to the card
++*/
++
++static inline void
++init_mboxes(acx_device_t *adev)
++{
++ u32 cmd_offs, info_offs;
++
++ cmd_offs = read_reg32(adev, IO_ACX_CMD_MAILBOX_OFFS);
++ info_offs = read_reg32(adev, IO_ACX_INFO_MAILBOX_OFFS);
++ adev->cmd_area = (u8 *)adev->iobase2 + cmd_offs;
++ adev->info_area = (u8 *)adev->iobase2 + info_offs;
++ log(L_DEBUG, "iobase2=%p\n"
++ "cmd_mbox_offset=%X cmd_area=%p\n"
++ "info_mbox_offset=%X info_area=%p\n",
++ adev->iobase2,
++ cmd_offs, adev->cmd_area,
++ info_offs, adev->info_area);
++}
++
++
++static inline void
++read_eeprom_area(acx_device_t *adev)
++{
++#if ACX_DEBUG > 1
++ int offs;
++ u8 tmp;
++
++ for (offs = 0x8c; offs < 0xb9; offs++)
++ acxpci_read_eeprom_byte(adev, offs, &tmp);
++#endif
++}
++
++
++static int
++acxpci_s_reset_dev(acx_device_t *adev)
++{
++ const char* msg = "";
++ unsigned long flags;
++ int result = NOT_OK;
++ u16 hardware_info;
++ u16 ecpu_ctrl;
++ int count;
++
++ FN_ENTER;
++
++ /* reset the device to make sure the eCPU is stopped
++ * to upload the firmware correctly */
++
++ acx_lock(adev, flags);
++
++ acxpci_l_reset_mac(adev);
++
++ ecpu_ctrl = read_reg16(adev, IO_ACX_ECPU_CTRL) & 1;
++ if (!ecpu_ctrl) {
++ msg = "eCPU is already running. ";
++ goto end_unlock;
++ }
++
++#ifdef WE_DONT_NEED_THAT_DO_WE
++ if (read_reg16(adev, IO_ACX_SOR_CFG) & 2) {
++ /* eCPU most likely means "embedded CPU" */
++ msg = "eCPU did not start after boot from flash. ";
++ goto end_unlock;
++ }
++
++ /* check sense on reset flags */
++ if (read_reg16(adev, IO_ACX_SOR_CFG) & 0x10) {
++ printk("%s: eCPU did not start after boot (SOR), "
++ "is this fatal?\n", adev->ndev->name);
++ }
++#endif
++ /* scan, if any, is stopped now, setting corresponding IRQ bit */
++ adev->irq_status |= HOST_INT_SCAN_COMPLETE;
++
++ acx_unlock(adev, flags);
++
++ /* need to know radio type before fw load */
++ /* Need to wait for arrival of this information in a loop,
++ * most probably since eCPU runs some init code from EEPROM
++ * (started burst read in reset_mac()) which also
++ * sets the radio type ID */
++
++ count = 0xffff;
++ do {
++ hardware_info = read_reg16(adev, IO_ACX_EEPROM_INFORMATION);
++ if (!--count) {
++ msg = "eCPU didn't indicate radio type";
++ goto end_fail;
++ }
++ cpu_relax();
++ } while (!(hardware_info & 0xff00)); /* radio type still zero? */
++
++ /* printk("DEBUG: count %d\n", count); */
++ adev->form_factor = hardware_info & 0xff;
++ adev->radio_type = hardware_info >> 8;
++
++ /* load the firmware */
++ if (OK != acxpci_s_upload_fw(adev))
++ goto end_fail;
++
++ /* acx_s_msleep(10); this one really shouldn't be required */
++
++ /* now start eCPU by clearing bit */
++ write_reg16(adev, IO_ACX_ECPU_CTRL, ecpu_ctrl & ~0x1);
++ log(L_DEBUG, "booted eCPU up and waiting for completion...\n");
++
++ /* wait for eCPU bootup */
++ if (OK != acxpci_s_verify_init(adev)) {
++ msg = "timeout waiting for eCPU. ";
++ goto end_fail;
++ }
++ log(L_DEBUG, "eCPU has woken up, card is ready to be configured\n");
++
++ init_mboxes(adev);
++ acxpci_write_cmd_type_status(adev, 0, 0);
++
++ /* test that EEPROM is readable */
++ read_eeprom_area(adev);
++
++ result = OK;
++ goto end;
++
++/* Finish error message. Indicate which function failed */
++end_unlock:
++ acx_unlock(adev, flags);
++end_fail:
++ printk("acx: %sreset_dev() FAILED\n", msg);
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acxpci_s_issue_cmd_timeo
++**
++** Sends command to fw, extract result
++**
++** NB: we do _not_ take lock inside, so be sure to not touch anything
++** which may interfere with IRQ handler operation
++**
++** TODO: busy wait is a bit silly, so:
++** 1) stop doing many iters - go to sleep after first
++** 2) go to waitqueue based approach: wait, not poll!
++*/
++#undef FUNC
++#define FUNC "issue_cmd"
++
++#if !ACX_DEBUG
++int
++acxpci_s_issue_cmd_timeo(
++ acx_device_t *adev,
++ unsigned int cmd,
++ void *buffer,
++ unsigned buflen,
++ unsigned cmd_timeout)
++{
++#else
++int
++acxpci_s_issue_cmd_timeo_debug(
++ acx_device_t *adev,
++ unsigned cmd,
++ void *buffer,
++ unsigned buflen,
++ unsigned cmd_timeout,
++ const char* cmdstr)
++{
++ unsigned long start = jiffies;
++#endif
++ const char *devname;
++ unsigned counter;
++ u16 irqtype;
++ u16 cmd_status;
++ unsigned long timeout;
++
++ FN_ENTER;
++
++ devname = adev->ndev->name;
++ if (!devname || !devname[0] || devname[4]=='%')
++ devname = "acx";
++
++ log(L_CTL, FUNC"(cmd:%s,buflen:%u,timeout:%ums,type:0x%04X)\n",
++ cmdstr, buflen, cmd_timeout,
++ buffer ? le16_to_cpu(((acx_ie_generic_t *)buffer)->type) : -1);
++
++ if (!(adev->dev_state_mask & ACX_STATE_FW_LOADED)) {
++ printk("%s: "FUNC"(): firmware is not loaded yet, "
++ "cannot execute commands!\n", devname);
++ goto bad;
++ }
++
++ if ((acx_debug & L_DEBUG) && (cmd != ACX1xx_CMD_INTERROGATE)) {
++ printk("input buffer (len=%u):\n", buflen);
++ acx_dump_bytes(buffer, buflen);
++ }
++
++ /* wait for firmware to become idle for our command submission */
++ timeout = HZ/5;
++ counter = (timeout * 1000 / HZ) - 1; /* in ms */
++ timeout += jiffies;
++ do {
++ cmd_status = acxpci_read_cmd_type_status(adev);
++ /* Test for IDLE state */
++ if (!cmd_status)
++ break;
++ if (counter % 8 == 0) {
++ if (time_after(jiffies, timeout)) {
++ counter = 0;
++ break;
++ }
++ /* we waited 8 iterations, no luck. Sleep 8 ms */
++ acx_s_msleep(8);
++ }
++ } while (likely(--counter));
++
++ if (!counter) {
++ /* the card doesn't get idle, we're in trouble */
++ printk("%s: "FUNC"(): cmd_status is not IDLE: 0x%04X!=0\n",
++ devname, cmd_status);
++ goto bad;
++ } else if (counter < 190) { /* if waited >10ms... */
++ log(L_CTL|L_DEBUG, FUNC"(): waited for IDLE %dms. "
++ "Please report\n", 199 - counter);
++ }
++
++ /* now write the parameters of the command if needed */
++ if (buffer && buflen) {
++ /* if it's an INTERROGATE command, just pass the length
++ * of parameters to read, as data */
++#if CMD_DISCOVERY
++ if (cmd == ACX1xx_CMD_INTERROGATE)
++ memset_io(adev->cmd_area + 4, 0xAA, buflen);
++#endif
++ /* adev->cmd_area points to PCI device's memory, not to RAM! */
++ memcpy_toio(adev->cmd_area + 4, buffer,
++ (cmd == ACX1xx_CMD_INTERROGATE) ? 4 : buflen);
++ }
++ /* now write the actual command type */
++ acxpci_write_cmd_type_status(adev, cmd, 0);
++ /* execute command */
++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_CMD);
++ write_flush(adev);
++
++ /* wait for firmware to process command */
++
++ /* Ensure nonzero and not too large timeout.
++ ** Also converts e.g. 100->99, 200->199
++ ** which is nice but not essential */
++ cmd_timeout = (cmd_timeout-1) | 1;
++ if (unlikely(cmd_timeout > 1199))
++ cmd_timeout = 1199;
++ /* clear CMD_COMPLETE bit. can be set only by IRQ handler: */
++ adev->irq_status &= ~HOST_INT_CMD_COMPLETE;
++
++ /* we schedule away sometimes (timeout can be large) */
++ counter = cmd_timeout;
++ timeout = jiffies + cmd_timeout * HZ / 1000;
++ do {
++ if (!adev->irqs_active) { /* IRQ disabled: poll */
++ irqtype = read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES);
++ if (irqtype & HOST_INT_CMD_COMPLETE) {
++ write_reg16(adev, IO_ACX_IRQ_ACK,
++ HOST_INT_CMD_COMPLETE);
++ break;
++ }
++ } else { /* Wait when IRQ will set the bit */
++ irqtype = adev->irq_status;
++ if (irqtype & HOST_INT_CMD_COMPLETE)
++ break;
++ }
++
++ if (counter % 8 == 0) {
++ if (time_after(jiffies, timeout)) {
++ counter = 0;
++ break;
++ }
++ /* we waited 8 iterations, no luck. Sleep 8 ms */
++ acx_s_msleep(8);
++ }
++ } while (likely(--counter));
++
++ /* save state for debugging */
++ cmd_status = acxpci_read_cmd_type_status(adev);
++
++ /* put the card in IDLE state */
++ acxpci_write_cmd_type_status(adev, 0, 0);
++
++ if (!counter) { /* timed out! */
++ printk("%s: "FUNC"(): timed out %s for CMD_COMPLETE. "
++ "irq bits:0x%04X irq_status:0x%04X timeout:%dms "
++ "cmd_status:%d (%s)\n",
++ devname, (adev->irqs_active) ? "waiting" : "polling",
++ irqtype, adev->irq_status, cmd_timeout,
++ cmd_status, acx_cmd_status_str(cmd_status));
++ goto bad;
++ } else if (cmd_timeout - counter > 30) { /* if waited >30ms... */
++ log(L_CTL|L_DEBUG, FUNC"(): %s for CMD_COMPLETE %dms. "
++ "count:%d. Please report\n",
++ (adev->irqs_active) ? "waited" : "polled",
++ cmd_timeout - counter, counter);
++ }
++
++ if (1 != cmd_status) { /* it is not a 'Success' */
++ printk("%s: "FUNC"(): cmd_status is not SUCCESS: %d (%s). "
++ "Took %dms of %d\n",
++ devname, cmd_status, acx_cmd_status_str(cmd_status),
++ cmd_timeout - counter, cmd_timeout);
++ /* zero out result buffer
++ * WARNING: this will trash stack in case of illegally large input
++ * length! */
++ if (buffer && buflen)
++ memset(buffer, 0, buflen);
++ goto bad;
++ }
++
++ /* read in result parameters if needed */
++ if (buffer && buflen && (cmd == ACX1xx_CMD_INTERROGATE)) {
++ /* adev->cmd_area points to PCI device's memory, not to RAM! */
++ memcpy_fromio(buffer, adev->cmd_area + 4, buflen);
++ if (acx_debug & L_DEBUG) {
++ printk("output buffer (len=%u): ", buflen);
++ acx_dump_bytes(buffer, buflen);
++ }
++ }
++/* ok: */
++ log(L_CTL, FUNC"(%s): took %ld jiffies to complete\n",
++ cmdstr, jiffies - start);
++ FN_EXIT1(OK);
++ return OK;
++
++bad:
++ /* Give enough info so that callers can avoid
++ ** printing their own diagnostic messages */
++#if ACX_DEBUG
++ printk("%s: "FUNC"(cmd:%s) FAILED\n", devname, cmdstr);
++#else
++ printk("%s: "FUNC"(cmd:0x%04X) FAILED\n", devname, cmd);
++#endif
++ dump_stack();
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***********************************************************************
++*/
++#ifdef NONESSENTIAL_FEATURES
++typedef struct device_id {
++ unsigned char id[6];
++ char *descr;
++ char *type;
++} device_id_t;
++
++static const device_id_t
++device_ids[] =
++{
++ {
++ {'G', 'l', 'o', 'b', 'a', 'l'},
++ NULL,
++ NULL,
++ },
++ {
++ {0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
++ "uninitialized",
++ "SpeedStream SS1021 or Gigafast WF721-AEX"
++ },
++ {
++ {0x80, 0x81, 0x82, 0x83, 0x84, 0x85},
++ "non-standard",
++ "DrayTek Vigor 520"
++ },
++ {
++ {'?', '?', '?', '?', '?', '?'},
++ "non-standard",
++ "Level One WPC-0200"
++ },
++ {
++ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
++ "empty",
++ "DWL-650+ variant"
++ }
++};
++
++static void
++acx_show_card_eeprom_id(acx_device_t *adev)
++{
++ unsigned char buffer[CARD_EEPROM_ID_SIZE];
++ int i;
++
++ memset(&buffer, 0, CARD_EEPROM_ID_SIZE);
++ /* use direct EEPROM access */
++ for (i = 0; i < CARD_EEPROM_ID_SIZE; i++) {
++ if (OK != acxpci_read_eeprom_byte(adev,
++ ACX100_EEPROM_ID_OFFSET + i,
++ &buffer[i])) {
++ printk("acx: reading EEPROM FAILED\n");
++ break;
++ }
++ }
++
++ for (i = 0; i < VEC_SIZE(device_ids); i++) {
++ if (!memcmp(&buffer, device_ids[i].id, CARD_EEPROM_ID_SIZE)) {
++ if (device_ids[i].descr) {
++ printk("acx: EEPROM card ID string check "
++ "found %s card ID: is this %s?\n",
++ device_ids[i].descr, device_ids[i].type);
++ }
++ break;
++ }
++ }
++ if (i == VEC_SIZE(device_ids)) {
++ printk("acx: EEPROM card ID string check found "
++ "unknown card: expected 'Global', got '%.*s\'. "
++ "Please report\n", CARD_EEPROM_ID_SIZE, buffer);
++ }
++}
++#endif /* NONESSENTIAL_FEATURES */
++
++
++/***********************************************************************
++** acxpci_free_desc_queues
++**
++** Releases the queues that have been allocated, the
++** others have been initialised to NULL so this
++** function can be used if only part of the queues were allocated.
++*/
++
++static inline void
++free_coherent(struct pci_dev *hwdev, size_t size,
++ void *vaddr, dma_addr_t dma_handle)
++{
++ dma_free_coherent(hwdev == NULL ? NULL : &hwdev->dev,
++ size, vaddr, dma_handle);
++}
++
++void
++acxpci_free_desc_queues(acx_device_t *adev)
++{
++#define ACX_FREE_QUEUE(size, ptr, phyaddr) \
++ if (ptr) { \
++ free_coherent(0, size, ptr, phyaddr); \
++ ptr = NULL; \
++ size = 0; \
++ }
++
++ FN_ENTER;
++
++ ACX_FREE_QUEUE(adev->txhostdesc_area_size, adev->txhostdesc_start, adev->txhostdesc_startphy);
++ ACX_FREE_QUEUE(adev->txbuf_area_size, adev->txbuf_start, adev->txbuf_startphy);
++
++ adev->txdesc_start = NULL;
++
++ ACX_FREE_QUEUE(adev->rxhostdesc_area_size, adev->rxhostdesc_start, adev->rxhostdesc_startphy);
++ ACX_FREE_QUEUE(adev->rxbuf_area_size, adev->rxbuf_start, adev->rxbuf_startphy);
++
++ adev->rxdesc_start = NULL;
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxpci_s_delete_dma_regions
++*/
++static void
++acxpci_s_delete_dma_regions(acx_device_t *adev)
++{
++ unsigned long flags;
++
++ FN_ENTER;
++ /* disable radio Tx/Rx. Shouldn't we use the firmware commands
++ * here instead? Or are we that much down the road that it's no
++ * longer possible here? */
++ write_reg16(adev, IO_ACX_ENABLE, 0);
++
++ acx_s_msleep(100);
++
++ acx_lock(adev, flags);
++ acxpci_free_desc_queues(adev);
++ acx_unlock(adev, flags);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxpci_e_probe
++**
++** Probe routine called when a PCI device w/ matching ID is found.
++** Here's the sequence:
++** - Allocate the PCI resources.
++** - Read the PCMCIA attribute memory to make sure we have a WLAN card
++** - Reset the MAC
++** - Initialize the dev and wlan data
++** - Initialize the MAC
++**
++** pdev - ptr to pci device structure containing info about pci configuration
++** id - ptr to the device id entry that matched this device
++*/
++static const u16
++IO_ACX100[] =
++{
++ 0x0000, /* IO_ACX_SOFT_RESET */
++
++ 0x0014, /* IO_ACX_SLV_MEM_ADDR */
++ 0x0018, /* IO_ACX_SLV_MEM_DATA */
++ 0x001c, /* IO_ACX_SLV_MEM_CTL */
++ 0x0020, /* IO_ACX_SLV_END_CTL */
++
++ 0x0034, /* IO_ACX_FEMR */
++
++ 0x007c, /* IO_ACX_INT_TRIG */
++ 0x0098, /* IO_ACX_IRQ_MASK */
++ 0x00a4, /* IO_ACX_IRQ_STATUS_NON_DES */
++ 0x00a8, /* IO_ACX_IRQ_STATUS_CLEAR */
++ 0x00ac, /* IO_ACX_IRQ_ACK */
++ 0x00b0, /* IO_ACX_HINT_TRIG */
++
++ 0x0104, /* IO_ACX_ENABLE */
++
++ 0x0250, /* IO_ACX_EEPROM_CTL */
++ 0x0254, /* IO_ACX_EEPROM_ADDR */
++ 0x0258, /* IO_ACX_EEPROM_DATA */
++ 0x025c, /* IO_ACX_EEPROM_CFG */
++
++ 0x0268, /* IO_ACX_PHY_ADDR */
++ 0x026c, /* IO_ACX_PHY_DATA */
++ 0x0270, /* IO_ACX_PHY_CTL */
++
++ 0x0290, /* IO_ACX_GPIO_OE */
++
++ 0x0298, /* IO_ACX_GPIO_OUT */
++
++ 0x02a4, /* IO_ACX_CMD_MAILBOX_OFFS */
++ 0x02a8, /* IO_ACX_INFO_MAILBOX_OFFS */
++ 0x02ac, /* IO_ACX_EEPROM_INFORMATION */
++
++ 0x02d0, /* IO_ACX_EE_START */
++ 0x02d4, /* IO_ACX_SOR_CFG */
++ 0x02d8 /* IO_ACX_ECPU_CTRL */
++};
++
++static const u16
++IO_ACX111[] =
++{
++ 0x0000, /* IO_ACX_SOFT_RESET */
++
++ 0x0014, /* IO_ACX_SLV_MEM_ADDR */
++ 0x0018, /* IO_ACX_SLV_MEM_DATA */
++ 0x001c, /* IO_ACX_SLV_MEM_CTL */
++ 0x0020, /* IO_ACX_SLV_END_CTL */
++
++ 0x0034, /* IO_ACX_FEMR */
++
++ 0x00b4, /* IO_ACX_INT_TRIG */
++ 0x00d4, /* IO_ACX_IRQ_MASK */
++ /* we do mean NON_DES (0xf0), not NON_DES_MASK which is at 0xe0: */
++ 0x00f0, /* IO_ACX_IRQ_STATUS_NON_DES */
++ 0x00e4, /* IO_ACX_IRQ_STATUS_CLEAR */
++ 0x00e8, /* IO_ACX_IRQ_ACK */
++ 0x00ec, /* IO_ACX_HINT_TRIG */
++
++ 0x01d0, /* IO_ACX_ENABLE */
++
++ 0x0338, /* IO_ACX_EEPROM_CTL */
++ 0x033c, /* IO_ACX_EEPROM_ADDR */
++ 0x0340, /* IO_ACX_EEPROM_DATA */
++ 0x0344, /* IO_ACX_EEPROM_CFG */
++
++ 0x0350, /* IO_ACX_PHY_ADDR */
++ 0x0354, /* IO_ACX_PHY_DATA */
++ 0x0358, /* IO_ACX_PHY_CTL */
++
++ 0x0374, /* IO_ACX_GPIO_OE */
++
++ 0x037c, /* IO_ACX_GPIO_OUT */
++
++ 0x0388, /* IO_ACX_CMD_MAILBOX_OFFS */
++ 0x038c, /* IO_ACX_INFO_MAILBOX_OFFS */
++ 0x0390, /* IO_ACX_EEPROM_INFORMATION */
++
++ 0x0100, /* IO_ACX_EE_START */
++ 0x0104, /* IO_ACX_SOR_CFG */
++ 0x0108, /* IO_ACX_ECPU_CTRL */
++};
++
++static void
++dummy_netdev_init(struct net_device *ndev) {}
++
++static int __devinit
++acxpci_e_probe(struct pci_dev *pdev, const struct pci_device_id *id)
++{
++ acx111_ie_configoption_t co;
++ unsigned long mem_region1 = 0;
++ unsigned long mem_region2 = 0;
++ unsigned long mem_region1_size;
++ unsigned long mem_region2_size;
++ unsigned long phymem1;
++ unsigned long phymem2;
++ void *mem1 = NULL;
++ void *mem2 = NULL;
++ acx_device_t *adev = NULL;
++ struct net_device *ndev = NULL;
++ const char *chip_name;
++ int result = -EIO;
++ int err;
++ u8 chip_type;
++
++ FN_ENTER;
++
++ /* Enable the PCI device */
++ if (pci_enable_device(pdev)) {
++ printk("acx: pci_enable_device() FAILED\n");
++ result = -ENODEV;
++ goto fail_pci_enable_device;
++ }
++
++ /* enable busmastering (required for CardBus) */
++ pci_set_master(pdev);
++
++ /* FIXME: prism54 calls pci_set_mwi() here,
++ * should we do/support the same? */
++
++ /* chiptype is u8 but id->driver_data is ulong
++ ** Works for now (possible values are 1 and 2) */
++ chip_type = (u8)id->driver_data;
++ /* acx100 and acx111 have different PCI memory regions */
++ if (chip_type == CHIPTYPE_ACX100) {
++ chip_name = "ACX100";
++ mem_region1 = PCI_ACX100_REGION1;
++ mem_region1_size = PCI_ACX100_REGION1_SIZE;
++
++ mem_region2 = PCI_ACX100_REGION2;
++ mem_region2_size = PCI_ACX100_REGION2_SIZE;
++ } else if (chip_type == CHIPTYPE_ACX111) {
++ chip_name = "ACX111";
++ mem_region1 = PCI_ACX111_REGION1;
++ mem_region1_size = PCI_ACX111_REGION1_SIZE;
++
++ mem_region2 = PCI_ACX111_REGION2;
++ mem_region2_size = PCI_ACX111_REGION2_SIZE;
++ } else {
++ printk("acx: unknown chip type 0x%04X\n", chip_type);
++ goto fail_unknown_chiptype;
++ }
++
++ /* Figure out our resources */
++ phymem1 = pci_resource_start(pdev, mem_region1);
++ phymem2 = pci_resource_start(pdev, mem_region2);
++ if (!request_mem_region(phymem1, pci_resource_len(pdev, mem_region1), "acx_1")) {
++ printk("acx: cannot reserve PCI memory region 1 (are you sure "
++ "you have CardBus support in kernel?)\n");
++ goto fail_request_mem_region1;
++ }
++ if (!request_mem_region(phymem2, pci_resource_len(pdev, mem_region2), "acx_2")) {
++ printk("acx: cannot reserve PCI memory region 2\n");
++ goto fail_request_mem_region2;
++ }
++
++ /* this used to be ioremap(), but ioremap_nocache()
++ * is much less risky, right? (and slower?)
++ * FIXME: we may want to go back to cached variant if it's
++ * certain that our code really properly handles
++ * cached operation (memory barriers, volatile?, ...)
++ * (but always keep this comment here regardless!)
++ * Possibly make this a driver config setting? */
++
++ mem1 = ioremap_nocache(phymem1, mem_region1_size);
++ if (!mem1) {
++ printk("acx: ioremap() FAILED\n");
++ goto fail_ioremap1;
++ }
++ mem2 = ioremap_nocache(phymem2, mem_region2_size);
++ if (!mem2) {
++ printk("acx: ioremap() #2 FAILED\n");
++ goto fail_ioremap2;
++ }
++
++ printk("acx: found %s-based wireless network card at %s, irq:%d, "
++ "phymem1:0x%lX, phymem2:0x%lX, mem1:0x%p, mem1_size:%ld, "
++ "mem2:0x%p, mem2_size:%ld\n",
++ chip_name, pci_name(pdev), pdev->irq, phymem1, phymem2,
++ mem1, mem_region1_size,
++ mem2, mem_region2_size);
++ log(L_ANY, "initial debug setting is 0x%04X\n", acx_debug);
++
++ if (0 == pdev->irq) {
++ printk("acx: can't use IRQ 0\n");
++ goto fail_irq;
++ }
++
++ ndev = alloc_netdev(sizeof(*adev), "wlan%d", dummy_netdev_init);
++ /* (NB: memsets to 0 entire area) */
++ if (!ndev) {
++ printk("acx: no memory for netdevice struct\n");
++ goto fail_alloc_netdev;
++ }
++
++ ether_setup(ndev);
++ ndev->open = &acxpci_e_open;
++ ndev->stop = &acxpci_e_close;
++ ndev->hard_start_xmit = &acx_i_start_xmit;
++ ndev->get_stats = &acx_e_get_stats;
++#if IW_HANDLER_VERSION <= 5
++ ndev->get_wireless_stats = &acx_e_get_wireless_stats;
++#endif
++ ndev->wireless_handlers = (struct iw_handler_def *)&acx_ioctl_handler_def;
++ ndev->set_multicast_list = &acxpci_i_set_multicast_list;
++ ndev->tx_timeout = &acxpci_i_tx_timeout;
++ ndev->change_mtu = &acx_e_change_mtu;
++ ndev->watchdog_timeo = 4 * HZ;
++ ndev->irq = pdev->irq;
++ ndev->base_addr = pci_resource_start(pdev, 0);
++
++ adev = ndev2adev(ndev);
++ spin_lock_init(&adev->lock); /* initial state: unlocked */
++ /* We do not start with downed sem: we want PARANOID_LOCKING to work */
++ sema_init(&adev->sem, 1); /* initial state: 1 (upped) */
++ /* since nobody can see new netdev yet, we can as well
++ ** just _presume_ that we're under sem (instead of actually taking it): */
++ /* acx_sem_lock(adev); */
++ adev->pdev = pdev;
++ adev->ndev = ndev;
++ adev->dev_type = DEVTYPE_PCI;
++ adev->chip_type = chip_type;
++ adev->chip_name = chip_name;
++ adev->io = (CHIPTYPE_ACX100 == chip_type) ? IO_ACX100 : IO_ACX111;
++ adev->membase = phymem1;
++ adev->iobase = mem1;
++ adev->membase2 = phymem2;
++ adev->iobase2 = mem2;
++ /* to find crashes due to weird driver access
++ * to unconfigured interface (ifup) */
++ adev->mgmt_timer.function = (void (*)(unsigned long))0x0000dead;
++
++#ifdef NONESSENTIAL_FEATURES
++ acx_show_card_eeprom_id(adev);
++#endif /* NONESSENTIAL_FEATURES */
++
++#ifdef SET_MODULE_OWNER
++ SET_MODULE_OWNER(ndev);
++#endif
++ SET_NETDEV_DEV(ndev, &pdev->dev);
++
++ log(L_IRQ|L_INIT, "using IRQ %d\n", pdev->irq);
++
++ /* need to be able to restore PCI state after a suspend */
++ pci_save_state(pdev);
++ pci_set_drvdata(pdev, ndev);
++
++ /* ok, pci setup is finished, now start initializing the card */
++
++ /* NB: read_reg() reads may return bogus data before reset_dev(),
++ * since the firmware which directly controls large parts of the I/O
++ * registers isn't initialized yet.
++ * acx100 seems to be more affected than acx111 */
++ if (OK != acxpci_s_reset_dev(adev))
++ goto fail_reset;
++
++ if (IS_ACX100(adev)) {
++ /* ACX100: configopt struct in cmd mailbox - directly after reset */
++ memcpy_fromio(&co, adev->cmd_area, sizeof(co));
++ }
++
++ if (OK != acx_s_init_mac(adev))
++ goto fail_init_mac;
++
++ if (IS_ACX111(adev)) {
++ /* ACX111: configopt struct needs to be queried after full init */
++ acx_s_interrogate(adev, &co, ACX111_IE_CONFIG_OPTIONS);
++ }
++
++/* TODO: merge them into one function, they are called just once and are the same for pci & usb */
++ if (OK != acxpci_read_eeprom_byte(adev, 0x05, &adev->eeprom_version))
++ goto fail_read_eeprom_version;
++
++ acx_s_parse_configoption(adev, &co);
++ acx_s_set_defaults(adev);
++ acx_s_get_firmware_version(adev); /* needs to be after acx_s_init_mac() */
++ acx_display_hardware_details(adev);
++
++ /* Register the card, AFTER everything else has been set up,
++ * since otherwise an ioctl could step on our feet due to
++ * firmware operations happening in parallel or uninitialized data */
++ err = register_netdev(ndev);
++ if (OK != err) {
++ printk("acx: register_netdev() FAILED: %d\n", err);
++ goto fail_register_netdev;
++ }
++
++ acx_proc_register_entries(ndev);
++
++ /* Now we have our device, so make sure the kernel doesn't try
++ * to send packets even though we're not associated to a network yet */
++ acx_stop_queue(ndev, "on probe");
++ acx_carrier_off(ndev, "on probe");
++
++ /* after register_netdev() userspace may start working with dev
++ * (in particular, on other CPUs), we only need to up the sem */
++ /* acx_sem_unlock(adev); */
++
++ printk("acx "ACX_RELEASE": net device %s, driver compiled "
++ "against wireless extensions %d and Linux %s\n",
++ ndev->name, WIRELESS_EXT, UTS_RELEASE);
++
++#if CMD_DISCOVERY
++ great_inquisitor(adev);
++#endif
++
++ result = OK;
++ goto done;
++
++ /* error paths: undo everything in reverse order... */
++
++fail_register_netdev:
++
++ acxpci_s_delete_dma_regions(adev);
++ pci_set_drvdata(pdev, NULL);
++
++fail_init_mac:
++fail_read_eeprom_version:
++fail_reset:
++
++ free_netdev(ndev);
++fail_alloc_netdev:
++fail_irq:
++
++ iounmap(mem2);
++fail_ioremap2:
++
++ iounmap(mem1);
++fail_ioremap1:
++
++ release_mem_region(pci_resource_start(pdev, mem_region2),
++ pci_resource_len(pdev, mem_region2));
++fail_request_mem_region2:
++
++ release_mem_region(pci_resource_start(pdev, mem_region1),
++ pci_resource_len(pdev, mem_region1));
++fail_request_mem_region1:
++fail_unknown_chiptype:
++
++ pci_disable_device(pdev);
++fail_pci_enable_device:
++
++ pci_set_power_state(pdev, PCI_D3hot);
++
++done:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acxpci_e_remove
++**
++** Shut device down (if not hot unplugged)
++** and deallocate PCI resources for the acx chip.
++**
++** pdev - ptr to PCI device structure containing info about pci configuration
++*/
++static void __devexit
++acxpci_e_remove(struct pci_dev *pdev)
++{
++ struct net_device *ndev;
++ acx_device_t *adev;
++ unsigned long mem_region1, mem_region2;
++ unsigned long flags;
++
++ FN_ENTER;
++
++ ndev = (struct net_device*) pci_get_drvdata(pdev);
++ if (!ndev) {
++ log(L_DEBUG, "%s: card is unused. Skipping any release code\n",
++ __func__);
++ goto end;
++ }
++
++ adev = ndev2adev(ndev);
++
++ /* If device wasn't hot unplugged... */
++ if (adev_present(adev)) {
++
++ acx_sem_lock(adev);
++
++ /* disable both Tx and Rx to shut radio down properly */
++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0);
++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_RX, NULL, 0);
++
++#ifdef REDUNDANT
++ /* put the eCPU to sleep to save power
++ * Halting is not possible currently,
++ * since not supported by all firmware versions */
++ acx_s_issue_cmd(adev, ACX100_CMD_SLEEP, NULL, 0);
++#endif
++ acx_lock(adev, flags);
++ /* disable power LED to save power :-) */
++ log(L_INIT, "switching off power LED to save power\n");
++ acxpci_l_power_led(adev, 0);
++ /* stop our eCPU */
++ if (IS_ACX111(adev)) {
++ /* FIXME: does this actually keep halting the eCPU?
++ * I don't think so...
++ */
++ acxpci_l_reset_mac(adev);
++ } else {
++ u16 temp;
++ /* halt eCPU */
++ temp = read_reg16(adev, IO_ACX_ECPU_CTRL) | 0x1;
++ write_reg16(adev, IO_ACX_ECPU_CTRL, temp);
++ write_flush(adev);
++ }
++ acx_unlock(adev, flags);
++
++ acx_sem_unlock(adev);
++ }
++
++ /* unregister the device to not let the kernel
++ * (e.g. ioctls) access a half-deconfigured device
++ * NB: this will cause acxpci_e_close() to be called,
++ * thus we shouldn't call it under sem! */
++ log(L_INIT, "removing device %s\n", ndev->name);
++ unregister_netdev(ndev);
++
++ /* unregister_netdev ensures that no references to us left.
++ * For paranoid reasons we continue to follow the rules */
++ acx_sem_lock(adev);
++
++ if (adev->dev_state_mask & ACX_STATE_IFACE_UP) {
++ acxpci_s_down(ndev);
++ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
++ }
++
++ acx_proc_unregister_entries(ndev);
++
++ if (IS_ACX100(adev)) {
++ mem_region1 = PCI_ACX100_REGION1;
++ mem_region2 = PCI_ACX100_REGION2;
++ } else {
++ mem_region1 = PCI_ACX111_REGION1;
++ mem_region2 = PCI_ACX111_REGION2;
++ }
++
++ /* finally, clean up PCI bus state */
++ acxpci_s_delete_dma_regions(adev);
++ if (adev->iobase) iounmap(adev->iobase);
++ if (adev->iobase2) iounmap(adev->iobase2);
++ release_mem_region(pci_resource_start(pdev, mem_region1),
++ pci_resource_len(pdev, mem_region1));
++ release_mem_region(pci_resource_start(pdev, mem_region2),
++ pci_resource_len(pdev, mem_region2));
++ pci_disable_device(pdev);
++
++ /* remove dev registration */
++ pci_set_drvdata(pdev, NULL);
++
++ acx_sem_unlock(adev);
++
++ /* Free netdev (quite late,
++ * since otherwise we might get caught off-guard
++ * by a netdev timeout handler execution
++ * expecting to see a working dev...) */
++ free_netdev(ndev);
++
++ /* put device into ACPI D3 mode (shutdown) */
++ pci_set_power_state(pdev, PCI_D3hot);
++
++end:
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** TODO: PM code needs to be fixed / debugged / tested.
++*/
++#ifdef CONFIG_PM
++static int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
++acxpci_e_suspend(struct pci_dev *pdev, pm_message_t state)
++#else
++acxpci_e_suspend(struct pci_dev *pdev, u32 state)
++#endif
++{
++ struct net_device *ndev = pci_get_drvdata(pdev);
++ acx_device_t *adev;
++
++ FN_ENTER;
++ printk("acx: suspend handler is experimental!\n");
++ printk("sus: dev %p\n", ndev);
++
++ if (!netif_running(ndev))
++ goto end;
++
++ adev = ndev2adev(ndev);
++ printk("sus: adev %p\n", adev);
++
++ acx_sem_lock(adev);
++
++ netif_device_detach(ndev); /* this one cannot sleep */
++ acxpci_s_down(ndev);
++ /* down() does not set it to 0xffff, but here we really want that */
++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
++ write_reg16(adev, IO_ACX_FEMR, 0x0);
++ acxpci_s_delete_dma_regions(adev);
++ pci_save_state(pdev);
++ pci_set_power_state(pdev, PCI_D3hot);
++
++ acx_sem_unlock(adev);
++end:
++ FN_EXIT0;
++ return OK;
++}
++
++
++static int
++acxpci_e_resume(struct pci_dev *pdev)
++{
++ struct net_device *ndev = pci_get_drvdata(pdev);
++ acx_device_t *adev;
++
++ FN_ENTER;
++
++ printk("acx: resume handler is experimental!\n");
++ printk("rsm: got dev %p\n", ndev);
++
++ if (!netif_running(ndev))
++ goto end;
++
++ adev = ndev2adev(ndev);
++ printk("rsm: got adev %p\n", adev);
++
++ acx_sem_lock(adev);
++
++ pci_set_power_state(pdev, PCI_D0);
++ printk("rsm: power state PCI_D0 set\n");
++ pci_restore_state(pdev);
++ printk("rsm: PCI state restored\n");
++
++ if (OK != acxpci_s_reset_dev(adev))
++ goto end_unlock;
++ printk("rsm: device reset done\n");
++ if (OK != acx_s_init_mac(adev))
++ goto end_unlock;
++ printk("rsm: init MAC done\n");
++
++ acxpci_s_up(ndev);
++ printk("rsm: acx up done\n");
++
++ /* now even reload all card parameters as they were before suspend,
++ * and possibly be back in the network again already :-) */
++ if (ACX_STATE_IFACE_UP & adev->dev_state_mask) {
++ adev->set_mask = GETSET_ALL;
++ acx_s_update_card_settings(adev);
++ printk("rsm: settings updated\n");
++ }
++ netif_device_attach(ndev);
++ printk("rsm: device attached\n");
++
++end_unlock:
++ acx_sem_unlock(adev);
++end:
++ /* we need to return OK here anyway, right? */
++ FN_EXIT0;
++ return OK;
++}
++#endif /* CONFIG_PM */
++
++
++/***********************************************************************
++** acxpci_s_up
++**
++** This function is called by acxpci_e_open (when ifconfig sets the device as up)
++**
++** Side effects:
++** - Enables on-card interrupt requests
++** - calls acx_s_start
++*/
++
++static void
++enable_acx_irq(acx_device_t *adev)
++{
++ FN_ENTER;
++ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask);
++ write_reg16(adev, IO_ACX_FEMR, 0x8000);
++ adev->irqs_active = 1;
++ FN_EXIT0;
++}
++
++static void
++acxpci_s_up(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++
++ FN_ENTER;
++
++ acx_lock(adev, flags);
++ enable_acx_irq(adev);
++ acx_unlock(adev, flags);
++
++ /* acx fw < 1.9.3.e has a hardware timer, and older drivers
++ ** used to use it. But we don't do that anymore, our OS
++ ** has reliable software timers */
++ init_timer(&adev->mgmt_timer);
++ adev->mgmt_timer.function = acx_i_timer;
++ adev->mgmt_timer.data = (unsigned long)adev;
++
++ /* Need to set ACX_STATE_IFACE_UP first, or else
++ ** timer won't be started by acx_set_status() */
++ SET_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ case ACX_MODE_2_STA:
++ /* actual scan cmd will happen in start() */
++ acx_set_status(adev, ACX_STATUS_1_SCANNING); break;
++ case ACX_MODE_3_AP:
++ case ACX_MODE_MONITOR:
++ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED); break;
++ }
++
++ acx_s_start(adev);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxpci_s_down
++**
++** NB: device may be already hot unplugged if called from acxpci_e_remove()
++**
++** Disables on-card interrupt request, stops softirq and timer, stops queue,
++** sets status == STOPPED
++*/
++
++static void
++disable_acx_irq(acx_device_t *adev)
++{
++ FN_ENTER;
++
++ /* I guess mask is not 0xffff because acx100 won't signal
++ ** cmd completion then (needed for ifup).
++ ** Someone with acx100 please confirm */
++ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask_off);
++ write_reg16(adev, IO_ACX_FEMR, 0x0);
++ adev->irqs_active = 0;
++ FN_EXIT0;
++}
++
++static void
++acxpci_s_down(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++
++ FN_ENTER;
++
++ /* Disable IRQs first, so that IRQs cannot race with us */
++ /* then wait until interrupts have finished executing on other CPUs */
++ acx_lock(adev, flags);
++ disable_acx_irq(adev);
++ synchronize_irq(adev->pdev->irq);
++ acx_unlock(adev, flags);
++
++ /* we really don't want to have an asynchronous tasklet disturb us
++ ** after something vital for its job has been shut down, so
++ ** end all remaining work now.
++ **
++ ** NB: carrier_off (done by set_status below) would lead to
++ ** not yet fully understood deadlock in FLUSH_SCHEDULED_WORK().
++ ** That's why we do FLUSH first.
++ **
++ ** NB2: we have a bad locking bug here: FLUSH_SCHEDULED_WORK()
++ ** waits for acx_e_after_interrupt_task to complete if it is running
++ ** on another CPU, but acx_e_after_interrupt_task
++ ** will sleep on sem forever, because it is taken by us!
++ ** Work around that by temporary sem unlock.
++ ** This will fail miserably if we'll be hit by concurrent
++ ** iwconfig or something in between. TODO! */
++ acx_sem_unlock(adev);
++ FLUSH_SCHEDULED_WORK();
++ acx_sem_lock(adev);
++
++ /* This is possible:
++ ** FLUSH_SCHEDULED_WORK -> acx_e_after_interrupt_task ->
++ ** -> set_status(ASSOCIATED) -> wake_queue()
++ ** That's why we stop queue _after_ FLUSH_SCHEDULED_WORK
++ ** lock/unlock is just paranoia, maybe not needed */
++ acx_lock(adev, flags);
++ acx_stop_queue(ndev, "on ifdown");
++ acx_set_status(adev, ACX_STATUS_0_STOPPED);
++ acx_unlock(adev, flags);
++
++ /* kernel/timer.c says it's illegal to del_timer_sync()
++ ** a timer which restarts itself. We guarantee this cannot
++ ** ever happen because acx_i_timer() never does this if
++ ** status is ACX_STATUS_0_STOPPED */
++ del_timer_sync(&adev->mgmt_timer);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxpci_e_open
++**
++** Called as a result of SIOCSIFFLAGS ioctl changing the flags bit IFF_UP
++** from clear to set. In other words: ifconfig up.
++**
++** Returns:
++** 0 success
++** >0 f/w reported error
++** <0 driver reported error
++*/
++static int
++acxpci_e_open(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ int result = OK;
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++
++ acx_init_task_scheduler(adev);
++
++/* TODO: pci_set_power_state(pdev, PCI_D0); ? */
++
++ /* request shared IRQ handler */
++ if (request_irq(ndev->irq, acxpci_i_interrupt, SA_SHIRQ, ndev->name, ndev)) {
++ printk("%s: request_irq FAILED\n", ndev->name);
++ result = -EAGAIN;
++ goto done;
++ }
++ log(L_DEBUG|L_IRQ, "request_irq %d successful\n", ndev->irq);
++
++ /* ifup device */
++ acxpci_s_up(ndev);
++
++ /* We don't currently have to do anything else.
++ * The setup of the MAC should be subsequently completed via
++ * the mlme commands.
++ * Higher layers know we're ready from dev->start==1 and
++ * dev->tbusy==0. Our rx path knows to pass up received/
++ * frames because of dev->flags&IFF_UP is true.
++ */
++done:
++ acx_sem_unlock(adev);
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acxpci_e_close
++**
++** Called as a result of SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
++** from set to clear. I.e. called by "ifconfig DEV down"
++**
++** Returns:
++** 0 success
++** >0 f/w reported error
++** <0 driver reported error
++*/
++static int
++acxpci_e_close(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++
++ /* ifdown device */
++ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
++ if (netif_device_present(ndev)) {
++ acxpci_s_down(ndev);
++ }
++
++ /* disable all IRQs, release shared IRQ handler */
++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
++ write_reg16(adev, IO_ACX_FEMR, 0x0);
++ free_irq(ndev->irq, ndev);
++
++/* TODO: pci_set_power_state(pdev, PCI_D3hot); ? */
++
++ /* We currently don't have to do anything else.
++ * Higher layers know we're not ready from dev->start==0 and
++ * dev->tbusy==1. Our rx path knows to not pass up received
++ * frames because of dev->flags&IFF_UP is false.
++ */
++ acx_sem_unlock(adev);
++
++ log(L_INIT, "closed device\n");
++ FN_EXIT0;
++ return OK;
++}
++
++
++/***********************************************************************
++** acxpci_i_tx_timeout
++**
++** Called from network core. Must not sleep!
++*/
++static void
++acxpci_i_tx_timeout(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++ unsigned int tx_num_cleaned;
++
++ FN_ENTER;
++
++ acx_lock(adev, flags);
++
++ /* clean processed tx descs, they may have been completely full */
++ tx_num_cleaned = acxpci_l_clean_txdesc(adev);
++
++ /* nothing cleaned, yet (almost) no free buffers available?
++ * --> clean all tx descs, no matter which status!!
++ * Note that I strongly suspect that doing emergency cleaning
++ * may confuse the firmware. This is a last ditch effort to get
++ * ANYTHING to work again...
++ *
++ * TODO: it's best to simply reset & reinit hw from scratch...
++ */
++ if ((adev->tx_free <= TX_EMERG_CLEAN) && (tx_num_cleaned == 0)) {
++ printk("%s: FAILED to free any of the many full tx buffers. "
++ "Switching to emergency freeing. "
++ "Please report!\n", ndev->name);
++ acxpci_l_clean_txdesc_emergency(adev);
++ }
++
++ if (acx_queue_stopped(ndev) && (ACX_STATUS_4_ASSOCIATED == adev->status))
++ acx_wake_queue(ndev, "after tx timeout");
++
++ /* stall may have happened due to radio drift, so recalib radio */
++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
++
++ /* do unimportant work last */
++ printk("%s: tx timeout!\n", ndev->name);
++ adev->stats.tx_errors++;
++
++ acx_unlock(adev, flags);
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxpci_i_set_multicast_list
++** FIXME: most likely needs refinement
++*/
++static void
++acxpci_i_set_multicast_list(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++
++ FN_ENTER;
++
++ acx_lock(adev, flags);
++
++ /* firmwares don't have allmulti capability,
++ * so just use promiscuous mode instead in this case. */
++ if (ndev->flags & (IFF_PROMISC|IFF_ALLMULTI)) {
++ SET_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS);
++ CLEAR_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI);
++ SET_BIT(adev->set_mask, SET_RXCONFIG);
++ /* let kernel know in case *we* needed to set promiscuous */
++ ndev->flags |= (IFF_PROMISC|IFF_ALLMULTI);
++ } else {
++ CLEAR_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS);
++ SET_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI);
++ SET_BIT(adev->set_mask, SET_RXCONFIG);
++ ndev->flags &= ~(IFF_PROMISC|IFF_ALLMULTI);
++ }
++
++ /* cannot update card settings directly here, atomic context */
++ acx_schedule_task(adev, ACX_AFTER_IRQ_UPDATE_CARD_CFG);
++
++ acx_unlock(adev, flags);
++
++ FN_EXIT0;
++}
++
++
++/***************************************************************
++** acxpci_l_process_rxdesc
++**
++** Called directly and only from the IRQ handler
++*/
++
++#if !ACX_DEBUG
++static inline void log_rxbuffer(const acx_device_t *adev) {}
++#else
++static void
++log_rxbuffer(const acx_device_t *adev)
++{
++ register const struct rxhostdesc *rxhostdesc;
++ int i;
++ /* no FN_ENTER here, we don't want that */
++
++ rxhostdesc = adev->rxhostdesc_start;
++ if (unlikely(!rxhostdesc)) return;
++ for (i = 0; i < RX_CNT; i++) {
++ if ((rxhostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN))
++ && (rxhostdesc->Status & cpu_to_le32(DESC_STATUS_FULL)))
++ printk("rx: buf %d full\n", i);
++ rxhostdesc++;
++ }
++}
++#endif
++
++static void
++acxpci_l_process_rxdesc(acx_device_t *adev)
++{
++ register rxhostdesc_t *hostdesc;
++ unsigned count, tail;
++
++ FN_ENTER;
++
++ if (unlikely(acx_debug & L_BUFR))
++ log_rxbuffer(adev);
++
++ /* First, have a loop to determine the first descriptor that's
++ * full, just in case there's a mismatch between our current
++ * rx_tail and the full descriptor we're supposed to handle. */
++ tail = adev->rx_tail;
++ count = RX_CNT;
++ while (1) {
++ hostdesc = &adev->rxhostdesc_start[tail];
++ /* advance tail regardless of outcome of the below test */
++ tail = (tail + 1) % RX_CNT;
++
++ if ((hostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN))
++ && (hostdesc->Status & cpu_to_le32(DESC_STATUS_FULL)))
++ break; /* found it! */
++
++ if (unlikely(!--count)) /* hmm, no luck: all descs empty, bail out */
++ goto end;
++ }
++
++ /* now process descriptors, starting with the first we figured out */
++ while (1) {
++ log(L_BUFR, "rx: tail=%u Ctl_16=%04X Status=%08X\n",
++ tail, hostdesc->Ctl_16, hostdesc->Status);
++
++ acx_l_process_rxbuf(adev, hostdesc->data);
++
++ hostdesc->Status = 0;
++ /* flush all writes before adapter sees CTL_HOSTOWN change */
++ wmb();
++ /* Host no longer owns this, needs to be LAST */
++ CLEAR_BIT(hostdesc->Ctl_16, cpu_to_le16(DESC_CTL_HOSTOWN));
++
++ /* ok, descriptor is handled, now check the next descriptor */
++ hostdesc = &adev->rxhostdesc_start[tail];
++
++ /* if next descriptor is empty, then bail out */
++ if (!(hostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN))
++ || !(hostdesc->Status & cpu_to_le32(DESC_STATUS_FULL)))
++ break;
++
++ tail = (tail + 1) % RX_CNT;
++ }
++end:
++ adev->rx_tail = tail;
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxpci_i_interrupt
++**
++** IRQ handler (atomic context, must not sleep, blah, blah)
++*/
++
++/* scan is complete. all frames now on the receive queue are valid */
++#define INFO_SCAN_COMPLETE 0x0001
++#define INFO_WEP_KEY_NOT_FOUND 0x0002
++/* hw has been reset as the result of a watchdog timer timeout */
++#define INFO_WATCH_DOG_RESET 0x0003
++/* failed to send out NULL frame from PS mode notification to AP */
++/* recommended action: try entering 802.11 PS mode again */
++#define INFO_PS_FAIL 0x0004
++/* encryption/decryption process on a packet failed */
++#define INFO_IV_ICV_FAILURE 0x0005
++
++/* Info mailbox format:
++2 bytes: type
++2 bytes: status
++more bytes may follow
++ rumors say about status:
++ 0x0000 info available (set by hw)
++ 0x0001 information received (must be set by host)
++ 0x1000 info available, mailbox overflowed (messages lost) (set by hw)
++ but in practice we've seen:
++ 0x9000 when we did not set status to 0x0001 on prev message
++ 0x1001 when we did set it
++ 0x0000 was never seen
++ conclusion: this is really a bitfield:
++ 0x1000 is 'info available' bit
++ 'mailbox overflowed' bit is 0x8000, not 0x1000
++ value of 0x0000 probably means that there are no messages at all
++ P.S. I dunno how in hell hw is supposed to notice that messages are lost -
++ it does NOT clear bit 0x0001, and this bit will probably stay forever set
++ after we set it once. Let's hope this will be fixed in firmware someday
++*/
++
++static void
++handle_info_irq(acx_device_t *adev)
++{
++#if ACX_DEBUG
++ static const char * const info_type_msg[] = {
++ "(unknown)",
++ "scan complete",
++ "WEP key not found",
++ "internal watchdog reset was done",
++ "failed to send powersave (NULL frame) notification to AP",
++ "encrypt/decrypt on a packet has failed",
++ "TKIP tx keys disabled",
++ "TKIP rx keys disabled",
++ "TKIP rx: key ID not found",
++ "???",
++ "???",
++ "???",
++ "???",
++ "???",
++ "???",
++ "???",
++ "TKIP IV value exceeds thresh"
++ };
++#endif
++ u32 info_type, info_status;
++
++ info_type = readl(adev->info_area);
++ info_status = (info_type >> 16);
++ info_type = (u16)info_type;
++
++ /* inform fw that we have read this info message */
++ writel(info_type | 0x00010000, adev->info_area);
++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_INFOACK);
++ write_flush(adev);
++
++ log(L_CTL, "info_type:%04X info_status:%04X\n",
++ info_type, info_status);
++
++ log(L_IRQ, "got Info IRQ: status %04X type %04X: %s\n",
++ info_status, info_type,
++ info_type_msg[(info_type >= VEC_SIZE(info_type_msg)) ?
++ 0 : info_type]
++ );
++}
++
++
++static void
++log_unusual_irq(u16 irqtype) {
++ /*
++ if (!printk_ratelimit())
++ return;
++ */
++
++ printk("acx: got");
++ if (irqtype & HOST_INT_RX_DATA) {
++ printk(" Rx_Data");
++ }
++ /* HOST_INT_TX_COMPLETE */
++ if (irqtype & HOST_INT_TX_XFER) {
++ printk(" Tx_Xfer");
++ }
++ /* HOST_INT_RX_COMPLETE */
++ if (irqtype & HOST_INT_DTIM) {
++ printk(" DTIM");
++ }
++ if (irqtype & HOST_INT_BEACON) {
++ printk(" Beacon");
++ }
++ if (irqtype & HOST_INT_TIMER) {
++ log(L_IRQ, " Timer");
++ }
++ if (irqtype & HOST_INT_KEY_NOT_FOUND) {
++ printk(" Key_Not_Found");
++ }
++ if (irqtype & HOST_INT_IV_ICV_FAILURE) {
++ printk(" IV_ICV_Failure (crypto)");
++ }
++ /* HOST_INT_CMD_COMPLETE */
++ /* HOST_INT_INFO */
++ if (irqtype & HOST_INT_OVERFLOW) {
++ printk(" Overflow");
++ }
++ if (irqtype & HOST_INT_PROCESS_ERROR) {
++ printk(" Process_Error");
++ }
++ /* HOST_INT_SCAN_COMPLETE */
++ if (irqtype & HOST_INT_FCS_THRESHOLD) {
++ printk(" FCS_Threshold");
++ }
++ if (irqtype & HOST_INT_UNKNOWN) {
++ printk(" Unknown");
++ }
++ printk(" IRQ(s)\n");
++}
++
++
++static void
++update_link_quality_led(acx_device_t *adev)
++{
++ int qual;
++
++ qual = acx_signal_determine_quality(adev->wstats.qual.level, adev->wstats.qual.noise);
++ if (qual > adev->brange_max_quality)
++ qual = adev->brange_max_quality;
++
++ if (time_after(jiffies, adev->brange_time_last_state_change +
++ (HZ/2 - HZ/2 * (unsigned long)qual / adev->brange_max_quality ) )) {
++ acxpci_l_power_led(adev, (adev->brange_last_state == 0));
++ adev->brange_last_state ^= 1; /* toggle */
++ adev->brange_time_last_state_change = jiffies;
++ }
++}
++
++
++#define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* a la orinoco.c */
++
++static irqreturn_t
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
++acxpci_i_interrupt(int irq, void *dev_id)
++#else
++acxpci_i_interrupt(int irq, void *dev_id, struct pt_regs *regs)
++#endif
++{
++ acx_device_t *adev;
++ unsigned long flags;
++ unsigned int irqcount = MAX_IRQLOOPS_PER_JIFFY;
++ register u16 irqtype;
++ u16 unmasked;
++
++ adev = ndev2adev((struct net_device*)dev_id);
++
++ /* LOCKING: can just spin_lock() since IRQs are disabled anyway.
++ * I am paranoid */
++ acx_lock(adev, flags);
++
++ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR);
++ if (unlikely(0xffff == unmasked)) {
++ /* 0xffff value hints at missing hardware,
++ * so don't do anything.
++ * Not very clean, but other drivers do the same... */
++ log(L_IRQ, "IRQ type:FFFF - device removed? IRQ_NONE\n");
++ goto none;
++ }
++
++ /* We will check only "interesting" IRQ types */
++ irqtype = unmasked & ~adev->irq_mask;
++ if (!irqtype) {
++ /* We are on a shared IRQ line and it wasn't our IRQ */
++ log(L_IRQ, "IRQ type:%04X, mask:%04X - all are masked, IRQ_NONE\n",
++ unmasked, adev->irq_mask);
++ goto none;
++ }
++
++ /* Done here because IRQ_NONEs taking three lines of log
++ ** drive me crazy */
++ FN_ENTER;
++
++#define IRQ_ITERATE 1
++#if IRQ_ITERATE
++if (jiffies != adev->irq_last_jiffies) {
++ adev->irq_loops_this_jiffy = 0;
++ adev->irq_last_jiffies = jiffies;
++}
++
++/* safety condition; we'll normally abort loop below
++ * in case no IRQ type occurred */
++while (likely(--irqcount)) {
++#endif
++ /* ACK all IRQs ASAP */
++ write_reg16(adev, IO_ACX_IRQ_ACK, 0xffff);
++
++ log(L_IRQ, "IRQ type:%04X, mask:%04X, type & ~mask:%04X\n",
++ unmasked, adev->irq_mask, irqtype);
++
++ /* Handle most important IRQ types first */
++ if (irqtype & HOST_INT_RX_COMPLETE) {
++ log(L_IRQ, "got Rx_Complete IRQ\n");
++ acxpci_l_process_rxdesc(adev);
++ }
++ if (irqtype & HOST_INT_TX_COMPLETE) {
++ log(L_IRQ, "got Tx_Complete IRQ\n");
++ /* don't clean up on each Tx complete, wait a bit
++ * unless we're going towards full, in which case
++ * we do it immediately, too (otherwise we might lockup
++ * with a full Tx buffer if we go into
++ * acxpci_l_clean_txdesc() at a time when we won't wakeup
++ * the net queue in there for some reason...) */
++ if (adev->tx_free <= TX_START_CLEAN) {
++#if TX_CLEANUP_IN_SOFTIRQ
++ acx_schedule_task(adev, ACX_AFTER_IRQ_TX_CLEANUP);
++#else
++ acxpci_l_clean_txdesc(adev);
++#endif
++ }
++ }
++
++ /* Less frequent ones */
++ if (irqtype & (0
++ | HOST_INT_CMD_COMPLETE
++ | HOST_INT_INFO
++ | HOST_INT_SCAN_COMPLETE
++ )) {
++ if (irqtype & HOST_INT_CMD_COMPLETE) {
++ log(L_IRQ, "got Command_Complete IRQ\n");
++ /* save the state for the running issue_cmd() */
++ SET_BIT(adev->irq_status, HOST_INT_CMD_COMPLETE);
++ }
++ if (irqtype & HOST_INT_INFO) {
++ handle_info_irq(adev);
++ }
++ if (irqtype & HOST_INT_SCAN_COMPLETE) {
++ log(L_IRQ, "got Scan_Complete IRQ\n");
++ /* need to do that in process context */
++ acx_schedule_task(adev, ACX_AFTER_IRQ_COMPLETE_SCAN);
++ /* remember that fw is not scanning anymore */
++ SET_BIT(adev->irq_status, HOST_INT_SCAN_COMPLETE);
++ }
++ }
++
++ /* These we just log, but either they happen rarely
++ * or we keep them masked out */
++ if (irqtype & (0
++ | HOST_INT_RX_DATA
++ /* | HOST_INT_TX_COMPLETE */
++ | HOST_INT_TX_XFER
++ /* | HOST_INT_RX_COMPLETE */
++ | HOST_INT_DTIM
++ | HOST_INT_BEACON
++ | HOST_INT_TIMER
++ | HOST_INT_KEY_NOT_FOUND
++ | HOST_INT_IV_ICV_FAILURE
++ /* | HOST_INT_CMD_COMPLETE */
++ /* | HOST_INT_INFO */
++ | HOST_INT_OVERFLOW
++ | HOST_INT_PROCESS_ERROR
++ /* | HOST_INT_SCAN_COMPLETE */
++ | HOST_INT_FCS_THRESHOLD
++ | HOST_INT_UNKNOWN
++ )) {
++ log_unusual_irq(irqtype);
++ }
++
++#if IRQ_ITERATE
++ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR);
++ irqtype = unmasked & ~adev->irq_mask;
++ /* Bail out if no new IRQ bits or if all are masked out */
++ if (!irqtype)
++ break;
++
++ if (unlikely(++adev->irq_loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY)) {
++ printk(KERN_ERR "acx: too many interrupts per jiffy!\n");
++ /* Looks like card floods us with IRQs! Try to stop that */
++ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
++ /* This will short-circuit all future attempts to handle IRQ.
++ * We cant do much more... */
++ adev->irq_mask = 0;
++ break;
++ }
++}
++#endif
++ /* Routine to perform blink with range */
++ if (unlikely(adev->led_power == 2))
++ update_link_quality_led(adev);
++
++/* handled: */
++ /* write_flush(adev); - not needed, last op was read anyway */
++ acx_unlock(adev, flags);
++ FN_EXIT0;
++ return IRQ_HANDLED;
++
++none:
++ acx_unlock(adev, flags);
++ return IRQ_NONE;
++}
++
++
++/***********************************************************************
++** acxpci_l_power_led
++*/
++void
++acxpci_l_power_led(acx_device_t *adev, int enable)
++{
++ u16 gpio_pled = IS_ACX111(adev) ? 0x0040 : 0x0800;
++
++ /* A hack. Not moving message rate limiting to adev->xxx
++ * (it's only a debug message after all) */
++ static int rate_limit = 0;
++
++ if (rate_limit++ < 3)
++ log(L_IOCTL, "Please report in case toggling the power "
++ "LED doesn't work for your card!\n");
++ if (enable)
++ write_reg16(adev, IO_ACX_GPIO_OUT,
++ read_reg16(adev, IO_ACX_GPIO_OUT) & ~gpio_pled);
++ else
++ write_reg16(adev, IO_ACX_GPIO_OUT,
++ read_reg16(adev, IO_ACX_GPIO_OUT) | gpio_pled);
++}
++
++
++/***********************************************************************
++** Ioctls
++*/
++
++/***********************************************************************
++*/
++int
++acx111pci_ioctl_info(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ struct iw_param *vwrq,
++ char *extra)
++{
++#if ACX_DEBUG > 1
++ acx_device_t *adev = ndev2adev(ndev);
++ rxdesc_t *rxdesc;
++ txdesc_t *txdesc;
++ rxhostdesc_t *rxhostdesc;
++ txhostdesc_t *txhostdesc;
++ struct acx111_ie_memoryconfig memconf;
++ struct acx111_ie_queueconfig queueconf;
++ unsigned long flags;
++ int i;
++ char memmap[0x34];
++ char rxconfig[0x8];
++ char fcserror[0x8];
++ char ratefallback[0x5];
++
++ if ( !(acx_debug & (L_IOCTL|L_DEBUG)) )
++ return OK;
++ /* using printk() since we checked debug flag already */
++
++ acx_sem_lock(adev);
++
++ if (!IS_ACX111(adev)) {
++ printk("acx111-specific function called "
++ "with non-acx111 chip, aborting\n");
++ goto end_ok;
++ }
++
++ /* get Acx111 Memory Configuration */
++ memset(&memconf, 0, sizeof(memconf));
++ /* BTW, fails with 12 (Write only) error code.
++ ** Retained for easy testing of issue_cmd error handling :) */
++ acx_s_interrogate(adev, &memconf, ACX1xx_IE_QUEUE_CONFIG);
++
++ /* get Acx111 Queue Configuration */
++ memset(&queueconf, 0, sizeof(queueconf));
++ acx_s_interrogate(adev, &queueconf, ACX1xx_IE_MEMORY_CONFIG_OPTIONS);
++
++ /* get Acx111 Memory Map */
++ memset(memmap, 0, sizeof(memmap));
++ acx_s_interrogate(adev, &memmap, ACX1xx_IE_MEMORY_MAP);
++
++ /* get Acx111 Rx Config */
++ memset(rxconfig, 0, sizeof(rxconfig));
++ acx_s_interrogate(adev, &rxconfig, ACX1xx_IE_RXCONFIG);
++
++ /* get Acx111 fcs error count */
++ memset(fcserror, 0, sizeof(fcserror));
++ acx_s_interrogate(adev, &fcserror, ACX1xx_IE_FCS_ERROR_COUNT);
++
++ /* get Acx111 rate fallback */
++ memset(ratefallback, 0, sizeof(ratefallback));
++ acx_s_interrogate(adev, &ratefallback, ACX1xx_IE_RATE_FALLBACK);
++
++ /* force occurrence of a beacon interrupt */
++ /* TODO: comment why is this necessary */
++ write_reg16(adev, IO_ACX_HINT_TRIG, HOST_INT_BEACON);
++
++ /* dump Acx111 Mem Configuration */
++ printk("dump mem config:\n"
++ "data read: %d, struct size: %d\n"
++ "Number of stations: %1X\n"
++ "Memory block size: %1X\n"
++ "tx/rx memory block allocation: %1X\n"
++ "count rx: %X / tx: %X queues\n"
++ "options %1X\n"
++ "fragmentation %1X\n"
++ "Rx Queue 1 Count Descriptors: %X\n"
++ "Rx Queue 1 Host Memory Start: %X\n"
++ "Tx Queue 1 Count Descriptors: %X\n"
++ "Tx Queue 1 Attributes: %X\n",
++ memconf.len, (int) sizeof(memconf),
++ memconf.no_of_stations,
++ memconf.memory_block_size,
++ memconf.tx_rx_memory_block_allocation,
++ memconf.count_rx_queues, memconf.count_tx_queues,
++ memconf.options,
++ memconf.fragmentation,
++ memconf.rx_queue1_count_descs,
++ acx2cpu(memconf.rx_queue1_host_rx_start),
++ memconf.tx_queue1_count_descs,
++ memconf.tx_queue1_attributes);
++
++ /* dump Acx111 Queue Configuration */
++ printk("dump queue head:\n"
++ "data read: %d, struct size: %d\n"
++ "tx_memory_block_address (from card): %X\n"
++ "rx_memory_block_address (from card): %X\n"
++ "rx1_queue address (from card): %X\n"
++ "tx1_queue address (from card): %X\n"
++ "tx1_queue attributes (from card): %X\n",
++ queueconf.len, (int) sizeof(queueconf),
++ queueconf.tx_memory_block_address,
++ queueconf.rx_memory_block_address,
++ queueconf.rx1_queue_address,
++ queueconf.tx1_queue_address,
++ queueconf.tx1_attributes);
++
++ /* dump Acx111 Mem Map */
++ printk("dump mem map:\n"
++ "data read: %d, struct size: %d\n"
++ "Code start: %X\n"
++ "Code end: %X\n"
++ "WEP default key start: %X\n"
++ "WEP default key end: %X\n"
++ "STA table start: %X\n"
++ "STA table end: %X\n"
++ "Packet template start: %X\n"
++ "Packet template end: %X\n"
++ "Queue memory start: %X\n"
++ "Queue memory end: %X\n"
++ "Packet memory pool start: %X\n"
++ "Packet memory pool end: %X\n"
++ "iobase: %p\n"
++ "iobase2: %p\n",
++ *((u16 *)&memmap[0x02]), (int) sizeof(memmap),
++ *((u32 *)&memmap[0x04]),
++ *((u32 *)&memmap[0x08]),
++ *((u32 *)&memmap[0x0C]),
++ *((u32 *)&memmap[0x10]),
++ *((u32 *)&memmap[0x14]),
++ *((u32 *)&memmap[0x18]),
++ *((u32 *)&memmap[0x1C]),
++ *((u32 *)&memmap[0x20]),
++ *((u32 *)&memmap[0x24]),
++ *((u32 *)&memmap[0x28]),
++ *((u32 *)&memmap[0x2C]),
++ *((u32 *)&memmap[0x30]),
++ adev->iobase,
++ adev->iobase2);
++
++ /* dump Acx111 Rx Config */
++ printk("dump rx config:\n"
++ "data read: %d, struct size: %d\n"
++ "rx config: %X\n"
++ "rx filter config: %X\n",
++ *((u16 *)&rxconfig[0x02]), (int) sizeof(rxconfig),
++ *((u16 *)&rxconfig[0x04]),
++ *((u16 *)&rxconfig[0x06]));
++
++ /* dump Acx111 fcs error */
++ printk("dump fcserror:\n"
++ "data read: %d, struct size: %d\n"
++ "fcserrors: %X\n",
++ *((u16 *)&fcserror[0x02]), (int) sizeof(fcserror),
++ *((u32 *)&fcserror[0x04]));
++
++ /* dump Acx111 rate fallback */
++ printk("dump rate fallback:\n"
++ "data read: %d, struct size: %d\n"
++ "ratefallback: %X\n",
++ *((u16 *)&ratefallback[0x02]), (int) sizeof(ratefallback),
++ *((u8 *)&ratefallback[0x04]));
++
++ /* protect against IRQ */
++ acx_lock(adev, flags);
++
++ /* dump acx111 internal rx descriptor ring buffer */
++ rxdesc = adev->rxdesc_start;
++
++ /* loop over complete receive pool */
++ if (rxdesc) for (i = 0; i < RX_CNT; i++) {
++ printk("\ndump internal rxdesc %d:\n"
++ "mem pos %p\n"
++ "next 0x%X\n"
++ "acx mem pointer (dynamic) 0x%X\n"
++ "CTL (dynamic) 0x%X\n"
++ "Rate (dynamic) 0x%X\n"
++ "RxStatus (dynamic) 0x%X\n"
++ "Mod/Pre (dynamic) 0x%X\n",
++ i,
++ rxdesc,
++ acx2cpu(rxdesc->pNextDesc),
++ acx2cpu(rxdesc->ACXMemPtr),
++ rxdesc->Ctl_8,
++ rxdesc->rate,
++ rxdesc->error,
++ rxdesc->SNR);
++ rxdesc++;
++ }
++
++ /* dump host rx descriptor ring buffer */
++
++ rxhostdesc = adev->rxhostdesc_start;
++
++ /* loop over complete receive pool */
++ if (rxhostdesc) for (i = 0; i < RX_CNT; i++) {
++ printk("\ndump host rxdesc %d:\n"
++ "mem pos %p\n"
++ "buffer mem pos 0x%X\n"
++ "buffer mem offset 0x%X\n"
++ "CTL 0x%X\n"
++ "Length 0x%X\n"
++ "next 0x%X\n"
++ "Status 0x%X\n",
++ i,
++ rxhostdesc,
++ acx2cpu(rxhostdesc->data_phy),
++ rxhostdesc->data_offset,
++ le16_to_cpu(rxhostdesc->Ctl_16),
++ le16_to_cpu(rxhostdesc->length),
++ acx2cpu(rxhostdesc->desc_phy_next),
++ rxhostdesc->Status);
++ rxhostdesc++;
++ }
++
++ /* dump acx111 internal tx descriptor ring buffer */
++ txdesc = adev->txdesc_start;
++
++ /* loop over complete transmit pool */
++ if (txdesc) for (i = 0; i < TX_CNT; i++) {
++ printk("\ndump internal txdesc %d:\n"
++ "size 0x%X\n"
++ "mem pos %p\n"
++ "next 0x%X\n"
++ "acx mem pointer (dynamic) 0x%X\n"
++ "host mem pointer (dynamic) 0x%X\n"
++ "length (dynamic) 0x%X\n"
++ "CTL (dynamic) 0x%X\n"
++ "CTL2 (dynamic) 0x%X\n"
++ "Status (dynamic) 0x%X\n"
++ "Rate (dynamic) 0x%X\n",
++ i,
++ (int) sizeof(struct txdesc),
++ txdesc,
++ acx2cpu(txdesc->pNextDesc),
++ acx2cpu(txdesc->AcxMemPtr),
++ acx2cpu(txdesc->HostMemPtr),
++ le16_to_cpu(txdesc->total_length),
++ txdesc->Ctl_8,
++ txdesc->Ctl2_8, txdesc->error,
++ txdesc->u.r1.rate);
++ txdesc = advance_txdesc(adev, txdesc, 1);
++ }
++
++ /* dump host tx descriptor ring buffer */
++
++ txhostdesc = adev->txhostdesc_start;
++
++ /* loop over complete host send pool */
++ if (txhostdesc) for (i = 0; i < TX_CNT * 2; i++) {
++ printk("\ndump host txdesc %d:\n"
++ "mem pos %p\n"
++ "buffer mem pos 0x%X\n"
++ "buffer mem offset 0x%X\n"
++ "CTL 0x%X\n"
++ "Length 0x%X\n"
++ "next 0x%X\n"
++ "Status 0x%X\n",
++ i,
++ txhostdesc,
++ acx2cpu(txhostdesc->data_phy),
++ txhostdesc->data_offset,
++ le16_to_cpu(txhostdesc->Ctl_16),
++ le16_to_cpu(txhostdesc->length),
++ acx2cpu(txhostdesc->desc_phy_next),
++ le32_to_cpu(txhostdesc->Status));
++ txhostdesc++;
++ }
++
++ /* write_reg16(adev, 0xb4, 0x4); */
++
++ acx_unlock(adev, flags);
++end_ok:
++
++ acx_sem_unlock(adev);
++#endif /* ACX_DEBUG */
++ return OK;
++}
++
++
++/***********************************************************************
++*/
++int
++acx100pci_ioctl_set_phy_amp_bias(
++ struct net_device *ndev,
++ struct iw_request_info *info,
++ struct iw_param *vwrq,
++ char *extra)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++ u16 gpio_old;
++
++ if (!IS_ACX100(adev)) {
++ /* WARNING!!!
++ * Removing this check *might* damage
++ * hardware, since we're tweaking GPIOs here after all!!!
++ * You've been warned...
++ * WARNING!!! */
++ printk("acx: sorry, setting bias level for non-acx100 "
++ "is not supported yet\n");
++ return OK;
++ }
++
++ if (*extra > 7) {
++ printk("acx: invalid bias parameter, range is 0-7\n");
++ return -EINVAL;
++ }
++
++ acx_sem_lock(adev);
++
++ /* Need to lock accesses to [IO_ACX_GPIO_OUT]:
++ * IRQ handler uses it to update LED */
++ acx_lock(adev, flags);
++ gpio_old = read_reg16(adev, IO_ACX_GPIO_OUT);
++ write_reg16(adev, IO_ACX_GPIO_OUT, (gpio_old & 0xf8ff) | ((u16)*extra << 8));
++ acx_unlock(adev, flags);
++
++ log(L_DEBUG, "gpio_old: 0x%04X\n", gpio_old);
++ printk("%s: PHY power amplifier bias: old:%d, new:%d\n",
++ ndev->name,
++ (gpio_old & 0x0700) >> 8, (unsigned char)*extra);
++
++ acx_sem_unlock(adev);
++
++ return OK;
++}
++
++
++/***************************************************************
++** acxpci_l_alloc_tx
++** Actually returns a txdesc_t* ptr
++**
++** FIXME: in case of fragments, should allocate multiple descrs
++** after figuring out how many we need and whether we still have
++** sufficiently many.
++*/
++tx_t*
++acxpci_l_alloc_tx(acx_device_t *adev)
++{
++ struct txdesc *txdesc;
++ unsigned head;
++ u8 ctl8;
++
++ FN_ENTER;
++
++ if (unlikely(!adev->tx_free)) {
++ printk("acx: BUG: no free txdesc left\n");
++ txdesc = NULL;
++ goto end;
++ }
++
++ head = adev->tx_head;
++ txdesc = get_txdesc(adev, head);
++ ctl8 = txdesc->Ctl_8;
++
++ /* 2005-10-11: there were several bug reports on this happening
++ ** but now cause seems to be understood & fixed */
++ if (unlikely(DESC_CTL_HOSTOWN != (ctl8 & DESC_CTL_ACXDONE_HOSTOWN))) {
++ /* whoops, descr at current index is not free, so probably
++ * ring buffer already full */
++ printk("acx: BUG: tx_head:%d Ctl8:0x%02X - failed to find "
++ "free txdesc\n", head, ctl8);
++ txdesc = NULL;
++ goto end;
++ }
++
++ /* Needed in case txdesc won't be eventually submitted for tx */
++ txdesc->Ctl_8 = DESC_CTL_ACXDONE_HOSTOWN;
++
++ adev->tx_free--;
++ log(L_BUFT, "tx: got desc %u, %u remain\n",
++ head, adev->tx_free);
++ /* Keep a few free descs between head and tail of tx ring.
++ ** It is not absolutely needed, just feels safer */
++ if (adev->tx_free < TX_STOP_QUEUE) {
++ log(L_BUF, "stop queue (%u tx desc left)\n",
++ adev->tx_free);
++ acx_stop_queue(adev->ndev, NULL);
++ }
++
++ /* returning current descriptor, so advance to next free one */
++ adev->tx_head = (head + 1) % TX_CNT;
++end:
++ FN_EXIT0;
++
++ return (tx_t*)txdesc;
++}
++
++
++/***********************************************************************
++*/
++void*
++acxpci_l_get_txbuf(acx_device_t *adev, tx_t* tx_opaque)
++{
++ return get_txhostdesc(adev, (txdesc_t*)tx_opaque)->data;
++}
++
++
++/***********************************************************************
++** acxpci_l_tx_data
++**
++** Can be called from IRQ (rx -> (AP bridging or mgmt response) -> tx).
++** Can be called from acx_i_start_xmit (data frames from net core).
++**
++** FIXME: in case of fragments, should loop over the number of
++** pre-allocated tx descrs, properly setting up transfer data and
++** CTL_xxx flags according to fragment number.
++*/
++void
++acxpci_l_tx_data(acx_device_t *adev, tx_t* tx_opaque, int len)
++{
++ txdesc_t *txdesc = (txdesc_t*)tx_opaque;
++ txhostdesc_t *hostdesc1, *hostdesc2;
++ client_t *clt;
++ u16 rate_cur;
++ u8 Ctl_8, Ctl2_8;
++
++ FN_ENTER;
++
++ /* fw doesn't tx such packets anyhow */
++ if (unlikely(len < WLAN_HDR_A3_LEN))
++ goto end;
++
++ hostdesc1 = get_txhostdesc(adev, txdesc);
++ /* modify flag status in separate variable to be able to write it back
++ * in one big swoop later (also in order to have less device memory
++ * accesses) */
++ Ctl_8 = txdesc->Ctl_8;
++ Ctl2_8 = 0; /* really need to init it to 0, not txdesc->Ctl2_8, it seems */
++
++ hostdesc2 = hostdesc1 + 1;
++
++ /* DON'T simply set Ctl field to 0 here globally,
++ * it needs to maintain a consistent flag status (those are state flags!!),
++ * otherwise it may lead to severe disruption. Only set or reset particular
++ * flags at the exact moment this is needed... */
++
++ /* let chip do RTS/CTS handshaking before sending
++ * in case packet size exceeds threshold */
++ if (len > adev->rts_threshold)
++ SET_BIT(Ctl2_8, DESC_CTL2_RTS);
++ else
++ CLEAR_BIT(Ctl2_8, DESC_CTL2_RTS);
++
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ case ACX_MODE_3_AP:
++ clt = acx_l_sta_list_get(adev, ((wlan_hdr_t*)hostdesc1->data)->a1);
++ break;
++ case ACX_MODE_2_STA:
++ clt = adev->ap_client;
++ break;
++#if 0
++/* testing was done on acx111: */
++ case ACX_MODE_MONITOR:
++ SET_BIT(Ctl2_8, 0
++/* sends CTS to self before packet */
++ + DESC_CTL2_SEQ /* don't increase sequence field */
++/* not working (looks like good fcs is still added) */
++ + DESC_CTL2_FCS /* don't add the FCS */
++/* not tested */
++ + DESC_CTL2_MORE_FRAG
++/* not tested */
++ + DESC_CTL2_RETRY /* don't increase retry field */
++/* not tested */
++ + DESC_CTL2_POWER /* don't increase power mgmt. field */
++/* no effect */
++ + DESC_CTL2_WEP /* encrypt this frame */
++/* not tested */
++ + DESC_CTL2_DUR /* don't increase duration field */
++ );
++ /* fallthrough */
++#endif
++ default: /* ACX_MODE_OFF, ACX_MODE_MONITOR */
++ clt = NULL;
++ break;
++ }
++
++ rate_cur = clt ? clt->rate_cur : adev->rate_bcast;
++ if (unlikely(!rate_cur)) {
++ printk("acx: driver bug! bad ratemask\n");
++ goto end;
++ }
++
++ /* used in tx cleanup routine for auto rate and accounting: */
++ put_txcr(adev, txdesc, clt, rate_cur);
++
++ txdesc->total_length = cpu_to_le16(len);
++ hostdesc2->length = cpu_to_le16(len - WLAN_HDR_A3_LEN);
++ if (IS_ACX111(adev)) {
++ /* note that if !txdesc->do_auto, txrate->cur
++ ** has only one nonzero bit */
++ txdesc->u.r2.rate111 = cpu_to_le16(
++ rate_cur
++ /* WARNING: I was never able to make it work with prism54 AP.
++ ** It was falling down to 1Mbit where shortpre is not applicable,
++ ** and not working at all at "5,11 basic rates only" setting.
++ ** I even didn't see tx packets in radio packet capture.
++ ** Disabled for now --vda */
++ /*| ((clt->shortpre && clt->cur!=RATE111_1) ? RATE111_SHORTPRE : 0) */
++ );
++#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS
++ /* should add this to rate111 above as necessary */
++ | (clt->pbcc511 ? RATE111_PBCC511 : 0)
++#endif
++ hostdesc1->length = cpu_to_le16(len);
++ } else { /* ACX100 */
++ u8 rate_100 = clt ? clt->rate_100 : adev->rate_bcast100;
++ txdesc->u.r1.rate = rate_100;
++#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS
++ if (clt->pbcc511) {
++ if (n == RATE100_5 || n == RATE100_11)
++ n |= RATE100_PBCC511;
++ }
++
++ if (clt->shortpre && (clt->cur != RATE111_1))
++ SET_BIT(Ctl_8, DESC_CTL_SHORT_PREAMBLE); /* set Short Preamble */
++#endif
++ /* set autodma and reclaim and 1st mpdu */
++ SET_BIT(Ctl_8, DESC_CTL_AUTODMA | DESC_CTL_RECLAIM | DESC_CTL_FIRSTFRAG);
++#if ACX_FRAGMENTATION
++ /* SET_BIT(Ctl2_8, DESC_CTL2_MORE_FRAG); cannot set it unconditionally, needs to be set for all non-last fragments */
++#endif
++ hostdesc1->length = cpu_to_le16(WLAN_HDR_A3_LEN);
++ }
++ /* don't need to clean ack/rts statistics here, already
++ * done on descr cleanup */
++
++ /* clears HOSTOWN and ACXDONE bits, thus telling that the descriptors
++ * are now owned by the acx100; do this as LAST operation */
++ CLEAR_BIT(Ctl_8, DESC_CTL_ACXDONE_HOSTOWN);
++ /* flush writes before we release hostdesc to the adapter here */
++ wmb();
++ CLEAR_BIT(hostdesc1->Ctl_16, cpu_to_le16(DESC_CTL_HOSTOWN));
++ CLEAR_BIT(hostdesc2->Ctl_16, cpu_to_le16(DESC_CTL_HOSTOWN));
++
++ /* write back modified flags */
++ txdesc->Ctl2_8 = Ctl2_8;
++ txdesc->Ctl_8 = Ctl_8;
++ /* unused: txdesc->tx_time = cpu_to_le32(jiffies); */
++
++ /* flush writes before we tell the adapter that it's its turn now */
++ mmiowb();
++ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_TXPRC);
++ write_flush(adev);
++
++ /* log the packet content AFTER sending it,
++ * in order to not delay sending any further than absolutely needed
++ * Do separate logs for acx100/111 to have human-readable rates */
++ if (unlikely(acx_debug & (L_XFER|L_DATA))) {
++ u16 fc = ((wlan_hdr_t*)hostdesc1->data)->fc;
++ if (IS_ACX111(adev))
++ printk("tx: pkt (%s): len %d "
++ "rate %04X%s status %u\n",
++ acx_get_packet_type_string(le16_to_cpu(fc)), len,
++ le16_to_cpu(txdesc->u.r2.rate111),
++ (le16_to_cpu(txdesc->u.r2.rate111) & RATE111_SHORTPRE) ? "(SPr)" : "",
++ adev->status);
++ else
++ printk("tx: pkt (%s): len %d rate %03u%s status %u\n",
++ acx_get_packet_type_string(fc), len,
++ txdesc->u.r1.rate,
++ (Ctl_8 & DESC_CTL_SHORT_PREAMBLE) ? "(SPr)" : "",
++ adev->status);
++
++ if (acx_debug & L_DATA) {
++ printk("tx: 802.11 [%d]: ", len);
++ acx_dump_bytes(hostdesc1->data, len);
++ }
++ }
++end:
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxpci_l_clean_txdesc
++**
++** This function resets the txdescs' status when the ACX100
++** signals the TX done IRQ (txdescs have been processed), starting with
++** the pool index of the descriptor which we would use next,
++** in order to make sure that we can be as fast as possible
++** in filling new txdescs.
++** Everytime we get called we know where the next packet to be cleaned is.
++*/
++
++#if !ACX_DEBUG
++static inline void log_txbuffer(const acx_device_t *adev) {}
++#else
++static void
++log_txbuffer(acx_device_t *adev)
++{
++ txdesc_t *txdesc;
++ int i;
++
++ /* no FN_ENTER here, we don't want that */
++ /* no locks here, since it's entirely non-critical code */
++ txdesc = adev->txdesc_start;
++ if (unlikely(!txdesc)) return;
++ printk("tx: desc->Ctl8's:");
++ for (i = 0; i < TX_CNT; i++) {
++ printk(" %02X", txdesc->Ctl_8);
++ txdesc = advance_txdesc(adev, txdesc, 1);
++ }
++ printk("\n");
++}
++#endif
++
++
++static void
++handle_tx_error(acx_device_t *adev, u8 error, unsigned int finger)
++{
++ const char *err = "unknown error";
++
++ /* hmm, should we handle this as a mask
++ * of *several* bits?
++ * For now I think only caring about
++ * individual bits is ok... */
++ switch (error) {
++ case 0x01:
++ err = "no Tx due to error in other fragment";
++ adev->wstats.discard.fragment++;
++ break;
++ case 0x02:
++ err = "Tx aborted";
++ adev->stats.tx_aborted_errors++;
++ break;
++ case 0x04:
++ err = "Tx desc wrong parameters";
++ adev->wstats.discard.misc++;
++ break;
++ case 0x08:
++ err = "WEP key not found";
++ adev->wstats.discard.misc++;
++ break;
++ case 0x10:
++ err = "MSDU lifetime timeout? - try changing "
++ "'iwconfig retry lifetime XXX'";
++ adev->wstats.discard.misc++;
++ break;
++ case 0x20:
++ err = "excessive Tx retries due to either distance "
++ "too high or unable to Tx or Tx frame error - "
++ "try changing 'iwconfig txpower XXX' or "
++ "'sens'itivity or 'retry'";
++ adev->wstats.discard.retries++;
++ /* Tx error 0x20 also seems to occur on
++ * overheating, so I'm not sure whether we
++ * actually want to do aggressive radio recalibration,
++ * since people maybe won't notice then that their hardware
++ * is slowly getting cooked...
++ * Or is it still a safe long distance from utter
++ * radio non-functionality despite many radio recalibs
++ * to final destructive overheating of the hardware?
++ * In this case we really should do recalib here...
++ * I guess the only way to find out is to do a
++ * potentially fatal self-experiment :-\
++ * Or maybe only recalib in case we're using Tx
++ * rate auto (on errors switching to lower speed
++ * --> less heat?) or 802.11 power save mode?
++ *
++ * ok, just do it. */
++ if (++adev->retry_errors_msg_ratelimit % 4 == 0) {
++ if (adev->retry_errors_msg_ratelimit <= 20) {
++ printk("%s: several excessive Tx "
++ "retry errors occurred, attempting "
++ "to recalibrate radio. Radio "
++ "drift might be caused by increasing "
++ "card temperature, please check the card "
++ "before it's too late!\n",
++ adev->ndev->name);
++ if (adev->retry_errors_msg_ratelimit == 20)
++ printk("disabling above message\n");
++ }
++
++ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
++ }
++ break;
++ case 0x40:
++ err = "Tx buffer overflow";
++ adev->stats.tx_fifo_errors++;
++ break;
++ case 0x80:
++ /* possibly ACPI C-state powersaving related!!!
++ * (DMA timeout due to excessively high wakeup
++ * latency after C-state activation!?)
++ * Disable C-State powersaving and try again,
++ * then PLEASE REPORT, I'm VERY interested in
++ * whether my theory is correct that this is
++ * actually the problem here.
++ * In that case, use new Linux idle wakeup latency
++ * requirements kernel API to prevent this issue. */
++ err = "DMA error";
++ adev->wstats.discard.misc++;
++ break;
++ }
++ adev->stats.tx_errors++;
++ if (adev->stats.tx_errors <= 20)
++ printk("%s: tx error 0x%02X, buf %02u! (%s)\n",
++ adev->ndev->name, error, finger, err);
++ else
++ printk("%s: tx error 0x%02X, buf %02u!\n",
++ adev->ndev->name, error, finger);
++}
++
++
++unsigned int
++acxpci_l_clean_txdesc(acx_device_t *adev)
++{
++ txdesc_t *txdesc;
++ unsigned finger;
++ int num_cleaned;
++ u16 r111;
++ u8 error, ack_failures, rts_failures, rts_ok, r100;
++
++ FN_ENTER;
++
++ if (unlikely(acx_debug & L_DEBUG))
++ log_txbuffer(adev);
++
++ log(L_BUFT, "tx: cleaning up bufs from %u\n", adev->tx_tail);
++
++ /* We know first descr which is not free yet. We advance it as far
++ ** as we see correct bits set in following descs (if next desc
++ ** is NOT free, we shouldn't advance at all). We know that in
++ ** front of tx_tail may be "holes" with isolated free descs.
++ ** We will catch up when all intermediate descs will be freed also */
++
++ finger = adev->tx_tail;
++ num_cleaned = 0;
++ while (likely(finger != adev->tx_head)) {
++ txdesc = get_txdesc(adev, finger);
++
++ /* If we allocated txdesc on tx path but then decided
++ ** to NOT use it, then it will be left as a free "bubble"
++ ** in the "allocated for tx" part of the ring.
++ ** We may meet it on the next ring pass here. */
++
++ /* stop if not marked as "tx finished" and "host owned" */
++ if ((txdesc->Ctl_8 & DESC_CTL_ACXDONE_HOSTOWN)
++ != DESC_CTL_ACXDONE_HOSTOWN) {
++ if (unlikely(!num_cleaned)) { /* maybe remove completely */
++ log(L_BUFT, "clean_txdesc: tail isn't free. "
++ "tail:%d head:%d\n",
++ adev->tx_tail, adev->tx_head);
++ }
++ break;
++ }
++
++ /* remember desc values... */
++ error = txdesc->error;
++ ack_failures = txdesc->ack_failures;
++ rts_failures = txdesc->rts_failures;
++ rts_ok = txdesc->rts_ok;
++ r100 = txdesc->u.r1.rate;
++ r111 = le16_to_cpu(txdesc->u.r2.rate111);
++
++ /* need to check for certain error conditions before we
++ * clean the descriptor: we still need valid descr data here */
++ if (unlikely(0x30 & error)) {
++ /* only send IWEVTXDROP in case of retry or lifetime exceeded;
++ * all other errors mean we screwed up locally */
++ union iwreq_data wrqu;
++ wlan_hdr_t *hdr;
++ txhostdesc_t *hostdesc;
++
++ hostdesc = get_txhostdesc(adev, txdesc);
++ hdr = (wlan_hdr_t *)hostdesc->data;
++ MAC_COPY(wrqu.addr.sa_data, hdr->a1);
++ wireless_send_event(adev->ndev, IWEVTXDROP, &wrqu, NULL);
++ }
++
++ /* ...and free the desc */
++ txdesc->error = 0;
++ txdesc->ack_failures = 0;
++ txdesc->rts_failures = 0;
++ txdesc->rts_ok = 0;
++ /* signal host owning it LAST, since ACX already knows that this
++ ** descriptor is finished since it set Ctl_8 accordingly. */
++ txdesc->Ctl_8 = DESC_CTL_HOSTOWN;
++
++ adev->tx_free++;
++ num_cleaned++;
++
++ if ((adev->tx_free >= TX_START_QUEUE)
++ && (adev->status == ACX_STATUS_4_ASSOCIATED)
++ && (acx_queue_stopped(adev->ndev))
++ ) {
++ log(L_BUF, "tx: wake queue (avail. Tx desc %u)\n",
++ adev->tx_free);
++ acx_wake_queue(adev->ndev, NULL);
++ }
++
++ /* do error checking, rate handling and logging
++ * AFTER having done the work, it's faster */
++
++ /* do rate handling */
++ if (adev->rate_auto) {
++ struct client *clt = get_txc(adev, txdesc);
++ if (clt) {
++ u16 cur = get_txr(adev, txdesc);
++ if (clt->rate_cur == cur) {
++ acx_l_handle_txrate_auto(adev, clt,
++ cur, /* intended rate */
++ r100, r111, /* actually used rate */
++ (error & 0x30), /* was there an error? */
++ TX_CNT + TX_CLEAN_BACKLOG - adev->tx_free);
++ }
++ }
++ }
++
++ if (unlikely(error))
++ handle_tx_error(adev, error, finger);
++
++ if (IS_ACX111(adev))
++ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u r111=%04X\n",
++ finger, ack_failures, rts_failures, rts_ok, r111);
++ else
++ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u rate=%u\n",
++ finger, ack_failures, rts_failures, rts_ok, r100);
++
++ /* update pointer for descr to be cleaned next */
++ finger = (finger + 1) % TX_CNT;
++ }
++
++ /* remember last position */
++ adev->tx_tail = finger;
++/* end: */
++ FN_EXIT1(num_cleaned);
++ return num_cleaned;
++}
++
++/* clean *all* Tx descriptors, and regardless of their previous state.
++ * Used for brute-force reset handling. */
++void
++acxpci_l_clean_txdesc_emergency(acx_device_t *adev)
++{
++ txdesc_t *txdesc;
++ int i;
++
++ FN_ENTER;
++
++ for (i = 0; i < TX_CNT; i++) {
++ txdesc = get_txdesc(adev, i);
++
++ /* free it */
++ txdesc->ack_failures = 0;
++ txdesc->rts_failures = 0;
++ txdesc->rts_ok = 0;
++ txdesc->error = 0;
++ txdesc->Ctl_8 = DESC_CTL_HOSTOWN;
++ }
++
++ adev->tx_free = TX_CNT;
++
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxpci_s_create_tx_host_desc_queue
++*/
++
++static void*
++allocate(acx_device_t *adev, size_t size, dma_addr_t *phy, const char *msg)
++{
++ void *ptr;
++
++ ptr = dma_alloc_coherent(adev->pdev ? &adev->pdev->dev : NULL,
++ size, phy, GFP_KERNEL);
++
++ if (ptr) {
++ log(L_DEBUG, "%s sz=%d adr=0x%p phy=0x%08llx\n",
++ msg, (int)size, ptr, (unsigned long long)*phy);
++ memset(ptr, 0, size);
++ return ptr;
++ }
++ printk(KERN_ERR "acx: %s allocation FAILED (%d bytes)\n",
++ msg, (int)size);
++ return NULL;
++}
++
++
++static int
++acxpci_s_create_tx_host_desc_queue(acx_device_t *adev)
++{
++ txhostdesc_t *hostdesc;
++ u8 *txbuf;
++ dma_addr_t hostdesc_phy;
++ dma_addr_t txbuf_phy;
++ int i;
++
++ FN_ENTER;
++
++ /* allocate TX buffer */
++ adev->txbuf_area_size = TX_CNT * WLAN_A4FR_MAXLEN_WEP_FCS;
++ adev->txbuf_start = allocate(adev, adev->txbuf_area_size,
++ &adev->txbuf_startphy, "txbuf_start");
++ if (!adev->txbuf_start)
++ goto fail;
++
++ /* allocate the TX host descriptor queue pool */
++ adev->txhostdesc_area_size = TX_CNT * 2*sizeof(*hostdesc);
++ adev->txhostdesc_start = allocate(adev, adev->txhostdesc_area_size,
++ &adev->txhostdesc_startphy, "txhostdesc_start");
++ if (!adev->txhostdesc_start)
++ goto fail;
++ /* check for proper alignment of TX host descriptor pool */
++ if ((long) adev->txhostdesc_start & 3) {
++ printk("acx: driver bug: dma alloc returns unaligned address\n");
++ goto fail;
++ }
++
++ hostdesc = adev->txhostdesc_start;
++ hostdesc_phy = adev->txhostdesc_startphy;
++ txbuf = adev->txbuf_start;
++ txbuf_phy = adev->txbuf_startphy;
++
++#if 0
++/* Each tx buffer is accessed by hardware via
++** txdesc -> txhostdesc(s) -> txbuffer(s).
++** We use only one txhostdesc per txdesc, but it looks like
++** acx111 is buggy: it accesses second txhostdesc
++** (via hostdesc.desc_phy_next field) even if
++** txdesc->length == hostdesc->length and thus
++** entire packet was placed into first txhostdesc.
++** Due to this bug acx111 hangs unless second txhostdesc
++** has le16_to_cpu(hostdesc.length) = 3 (or larger)
++** Storing NULL into hostdesc.desc_phy_next
++** doesn't seem to help.
++**
++** Update: although it worked on Xterasys XN-2522g
++** with len=3 trick, WG311v2 is even more bogus, doesn't work.
++** Keeping this code (#ifdef'ed out) for documentational purposes.
++*/
++ for (i = 0; i < TX_CNT*2; i++) {
++ hostdesc_phy += sizeof(*hostdesc);
++ if (!(i & 1)) {
++ hostdesc->data_phy = cpu2acx(txbuf_phy);
++ /* hostdesc->data_offset = ... */
++ /* hostdesc->reserved = ... */
++ hostdesc->Ctl_16 = cpu_to_le16(DESC_CTL_HOSTOWN);
++ /* hostdesc->length = ... */
++ hostdesc->desc_phy_next = cpu2acx(hostdesc_phy);
++ hostdesc->pNext = ptr2acx(NULL);
++ /* hostdesc->Status = ... */
++ /* below: non-hardware fields */
++ hostdesc->data = txbuf;
++
++ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS;
++ txbuf_phy += WLAN_A4FR_MAXLEN_WEP_FCS;
++ } else {
++ /* hostdesc->data_phy = ... */
++ /* hostdesc->data_offset = ... */
++ /* hostdesc->reserved = ... */
++ /* hostdesc->Ctl_16 = ... */
++ hostdesc->length = cpu_to_le16(3); /* bug workaround */
++ /* hostdesc->desc_phy_next = ... */
++ /* hostdesc->pNext = ... */
++ /* hostdesc->Status = ... */
++ /* below: non-hardware fields */
++ /* hostdesc->data = ... */
++ }
++ hostdesc++;
++ }
++#endif
++/* We initialize two hostdescs so that they point to adjacent
++** memory areas. Thus txbuf is really just a contiguous memory area */
++ for (i = 0; i < TX_CNT*2; i++) {
++ hostdesc_phy += sizeof(*hostdesc);
++
++ hostdesc->data_phy = cpu2acx(txbuf_phy);
++ /* done by memset(0): hostdesc->data_offset = 0; */
++ /* hostdesc->reserved = ... */
++ hostdesc->Ctl_16 = cpu_to_le16(DESC_CTL_HOSTOWN);
++ /* hostdesc->length = ... */
++ hostdesc->desc_phy_next = cpu2acx(hostdesc_phy);
++ /* done by memset(0): hostdesc->pNext = ptr2acx(NULL); */
++ /* hostdesc->Status = ... */
++ /* ->data is a non-hardware field: */
++ hostdesc->data = txbuf;
++
++ if (!(i & 1)) {
++ txbuf += WLAN_HDR_A3_LEN;
++ txbuf_phy += WLAN_HDR_A3_LEN;
++ } else {
++ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_HDR_A3_LEN;
++ txbuf_phy += WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_HDR_A3_LEN;
++ }
++ hostdesc++;
++ }
++ hostdesc--;
++ hostdesc->desc_phy_next = cpu2acx(adev->txhostdesc_startphy);
++
++ FN_EXIT1(OK);
++ return OK;
++fail:
++ printk("acx: create_tx_host_desc_queue FAILED\n");
++ /* dealloc will be done by free function on error case */
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***************************************************************
++** acxpci_s_create_rx_host_desc_queue
++*/
++/* the whole size of a data buffer (header plus data body)
++ * plus 32 bytes safety offset at the end */
++#define RX_BUFFER_SIZE (sizeof(rxbuffer_t) + 32)
++
++static int
++acxpci_s_create_rx_host_desc_queue(acx_device_t *adev)
++{
++ rxhostdesc_t *hostdesc;
++ rxbuffer_t *rxbuf;
++ dma_addr_t hostdesc_phy;
++ dma_addr_t rxbuf_phy;
++ int i;
++
++ FN_ENTER;
++
++ /* allocate the RX host descriptor queue pool */
++ adev->rxhostdesc_area_size = RX_CNT * sizeof(*hostdesc);
++ adev->rxhostdesc_start = allocate(adev, adev->rxhostdesc_area_size,
++ &adev->rxhostdesc_startphy, "rxhostdesc_start");
++ if (!adev->rxhostdesc_start)
++ goto fail;
++ /* check for proper alignment of RX host descriptor pool */
++ if ((long) adev->rxhostdesc_start & 3) {
++ printk("acx: driver bug: dma alloc returns unaligned address\n");
++ goto fail;
++ }
++
++ /* allocate Rx buffer pool which will be used by the acx
++ * to store the whole content of the received frames in it */
++ adev->rxbuf_area_size = RX_CNT * RX_BUFFER_SIZE;
++ adev->rxbuf_start = allocate(adev, adev->rxbuf_area_size,
++ &adev->rxbuf_startphy, "rxbuf_start");
++ if (!adev->rxbuf_start)
++ goto fail;
++
++ rxbuf = adev->rxbuf_start;
++ rxbuf_phy = adev->rxbuf_startphy;
++ hostdesc = adev->rxhostdesc_start;
++ hostdesc_phy = adev->rxhostdesc_startphy;
++
++ /* don't make any popular C programming pointer arithmetic mistakes
++ * here, otherwise I'll kill you...
++ * (and don't dare asking me why I'm warning you about that...) */
++ for (i = 0; i < RX_CNT; i++) {
++ hostdesc->data = rxbuf;
++ hostdesc->data_phy = cpu2acx(rxbuf_phy);
++ hostdesc->length = cpu_to_le16(RX_BUFFER_SIZE);
++ CLEAR_BIT(hostdesc->Ctl_16, cpu_to_le16(DESC_CTL_HOSTOWN));
++ rxbuf++;
++ rxbuf_phy += sizeof(*rxbuf);
++ hostdesc_phy += sizeof(*hostdesc);
++ hostdesc->desc_phy_next = cpu2acx(hostdesc_phy);
++ hostdesc++;
++ }
++ hostdesc--;
++ hostdesc->desc_phy_next = cpu2acx(adev->rxhostdesc_startphy);
++ FN_EXIT1(OK);
++ return OK;
++fail:
++ printk("acx: create_rx_host_desc_queue FAILED\n");
++ /* dealloc will be done by free function on error case */
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***************************************************************
++** acxpci_s_create_hostdesc_queues
++*/
++int
++acxpci_s_create_hostdesc_queues(acx_device_t *adev)
++{
++ int result;
++ result = acxpci_s_create_tx_host_desc_queue(adev);
++ if (OK != result) return result;
++ result = acxpci_s_create_rx_host_desc_queue(adev);
++ return result;
++}
++
++
++/***************************************************************
++** acxpci_create_tx_desc_queue
++*/
++static void
++acxpci_create_tx_desc_queue(acx_device_t *adev, u32 tx_queue_start)
++{
++ txdesc_t *txdesc;
++ txhostdesc_t *hostdesc;
++ dma_addr_t hostmemptr;
++ u32 mem_offs;
++ int i;
++
++ FN_ENTER;
++
++ if (IS_ACX100(adev))
++ adev->txdesc_size = sizeof(*txdesc);
++ else
++ /* the acx111 txdesc is 4 bytes larger */
++ adev->txdesc_size = sizeof(*txdesc) + 4;
++
++ adev->txdesc_start = (txdesc_t *) (adev->iobase2 + tx_queue_start);
++
++ log(L_DEBUG, "adev->iobase2=%p\n"
++ "tx_queue_start=%08X\n"
++ "adev->txdesc_start=%p\n",
++ adev->iobase2,
++ tx_queue_start,
++ adev->txdesc_start);
++
++ adev->tx_free = TX_CNT;
++ /* done by memset: adev->tx_head = 0; */
++ /* done by memset: adev->tx_tail = 0; */
++ txdesc = adev->txdesc_start;
++ mem_offs = tx_queue_start;
++ hostmemptr = adev->txhostdesc_startphy;
++ hostdesc = adev->txhostdesc_start;
++
++ if (IS_ACX111(adev)) {
++ /* ACX111 has a preinitialized Tx buffer! */
++ /* loop over whole send pool */
++ /* FIXME: do we have to do the hostmemptr stuff here?? */
++ for (i = 0; i < TX_CNT; i++) {
++ txdesc->HostMemPtr = ptr2acx(hostmemptr);
++ txdesc->Ctl_8 = DESC_CTL_HOSTOWN;
++ /* reserve two (hdr desc and payload desc) */
++ hostdesc += 2;
++ hostmemptr += 2 * sizeof(*hostdesc);
++ txdesc = advance_txdesc(adev, txdesc, 1);
++ }
++ } else {
++ /* ACX100 Tx buffer needs to be initialized by us */
++ /* clear whole send pool. sizeof is safe here (we are acx100) */
++ memset(adev->txdesc_start, 0, TX_CNT * sizeof(*txdesc));
++
++ /* loop over whole send pool */
++ for (i = 0; i < TX_CNT; i++) {
++ log(L_DEBUG, "configure card tx descriptor: 0x%p, "
++ "size: 0x%X\n", txdesc, adev->txdesc_size);
++
++ /* pointer to hostdesc memory */
++ txdesc->HostMemPtr = ptr2acx(hostmemptr);
++ /* initialise ctl */
++ txdesc->Ctl_8 = ( DESC_CTL_HOSTOWN | DESC_CTL_RECLAIM
++ | DESC_CTL_AUTODMA | DESC_CTL_FIRSTFRAG);
++ /* done by memset(0): txdesc->Ctl2_8 = 0; */
++ /* point to next txdesc */
++ txdesc->pNextDesc = cpu2acx(mem_offs + adev->txdesc_size);
++ /* reserve two (hdr desc and payload desc) */
++ hostdesc += 2;
++ hostmemptr += 2 * sizeof(*hostdesc);
++ /* go to the next one */
++ mem_offs += adev->txdesc_size;
++ /* ++ is safe here (we are acx100) */
++ txdesc++;
++ }
++ /* go back to the last one */
++ txdesc--;
++ /* and point to the first making it a ring buffer */
++ txdesc->pNextDesc = cpu2acx(tx_queue_start);
++ }
++ FN_EXIT0;
++}
++
++
++/***************************************************************
++** acxpci_create_rx_desc_queue
++*/
++static void
++acxpci_create_rx_desc_queue(acx_device_t *adev, u32 rx_queue_start)
++{
++ rxdesc_t *rxdesc;
++ u32 mem_offs;
++ int i;
++
++ FN_ENTER;
++
++ /* done by memset: adev->rx_tail = 0; */
++
++ /* ACX111 doesn't need any further config: preconfigures itself.
++ * Simply print ring buffer for debugging */
++ if (IS_ACX111(adev)) {
++ /* rxdesc_start already set here */
++
++ adev->rxdesc_start = (rxdesc_t *) ((u8 *)adev->iobase2 + rx_queue_start);
++
++ rxdesc = adev->rxdesc_start;
++ for (i = 0; i < RX_CNT; i++) {
++ log(L_DEBUG, "rx descriptor %d @ 0x%p\n", i, rxdesc);
++ rxdesc = adev->rxdesc_start = (rxdesc_t *)
++ (adev->iobase2 + acx2cpu(rxdesc->pNextDesc));
++ }
++ } else {
++ /* we didn't pre-calculate rxdesc_start in case of ACX100 */
++ /* rxdesc_start should be right AFTER Tx pool */
++ adev->rxdesc_start = (rxdesc_t *)
++ ((u8 *) adev->txdesc_start + (TX_CNT * sizeof(txdesc_t)));
++ /* NB: sizeof(txdesc_t) above is valid because we know
++ ** we are in if (acx100) block. Beware of cut-n-pasting elsewhere!
++ ** acx111's txdesc is larger! */
++
++ memset(adev->rxdesc_start, 0, RX_CNT * sizeof(*rxdesc));
++
++ /* loop over whole receive pool */
++ rxdesc = adev->rxdesc_start;
++ mem_offs = rx_queue_start;
++ for (i = 0; i < RX_CNT; i++) {
++ log(L_DEBUG, "rx descriptor @ 0x%p\n", rxdesc);
++ rxdesc->Ctl_8 = DESC_CTL_RECLAIM | DESC_CTL_AUTODMA;
++ /* point to next rxdesc */
++ rxdesc->pNextDesc = cpu2acx(mem_offs + sizeof(*rxdesc));
++ /* go to the next one */
++ mem_offs += sizeof(*rxdesc);
++ rxdesc++;
++ }
++ /* go to the last one */
++ rxdesc--;
++
++ /* and point to the first making it a ring buffer */
++ rxdesc->pNextDesc = cpu2acx(rx_queue_start);
++ }
++ FN_EXIT0;
++}
++
++
++/***************************************************************
++** acxpci_create_desc_queues
++*/
++void
++acxpci_create_desc_queues(acx_device_t *adev, u32 tx_queue_start, u32 rx_queue_start)
++{
++ acxpci_create_tx_desc_queue(adev, tx_queue_start);
++ acxpci_create_rx_desc_queue(adev, rx_queue_start);
++}
++
++
++/***************************************************************
++** acxpci_s_proc_diag_output
++*/
++char*
++acxpci_s_proc_diag_output(char *p, acx_device_t *adev)
++{
++ const char *rtl, *thd, *ttl;
++ rxhostdesc_t *rxhostdesc;
++ txdesc_t *txdesc;
++ int i;
++
++ FN_ENTER;
++
++ p += sprintf(p, "** Rx buf **\n");
++ rxhostdesc = adev->rxhostdesc_start;
++ if (rxhostdesc) for (i = 0; i < RX_CNT; i++) {
++ rtl = (i == adev->rx_tail) ? " [tail]" : "";
++ if ((rxhostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN))
++ && (rxhostdesc->Status & cpu_to_le32(DESC_STATUS_FULL)) )
++ p += sprintf(p, "%02u FULL%s\n", i, rtl);
++ else
++ p += sprintf(p, "%02u empty%s\n", i, rtl);
++ rxhostdesc++;
++ }
++ p += sprintf(p, "** Tx buf (free %d, Linux netqueue %s) **\n", adev->tx_free,
++ acx_queue_stopped(adev->ndev) ? "STOPPED" : "running");
++ txdesc = adev->txdesc_start;
++ if (txdesc) for (i = 0; i < TX_CNT; i++) {
++ thd = (i == adev->tx_head) ? " [head]" : "";
++ ttl = (i == adev->tx_tail) ? " [tail]" : "";
++ if (txdesc->Ctl_8 & DESC_CTL_ACXDONE)
++ p += sprintf(p, "%02u free (%02X)%s%s\n", i, txdesc->Ctl_8, thd, ttl);
++ else
++ p += sprintf(p, "%02u tx (%02X)%s%s\n", i, txdesc->Ctl_8, thd, ttl);
++ txdesc = advance_txdesc(adev, txdesc, 1);
++ }
++ p += sprintf(p,
++ "\n"
++ "** PCI data **\n"
++ "txbuf_start %p, txbuf_area_size %u, txbuf_startphy %08llx\n"
++ "txdesc_size %u, txdesc_start %p\n"
++ "txhostdesc_start %p, txhostdesc_area_size %u, txhostdesc_startphy %08llx\n"
++ "rxdesc_start %p\n"
++ "rxhostdesc_start %p, rxhostdesc_area_size %u, rxhostdesc_startphy %08llx\n"
++ "rxbuf_start %p, rxbuf_area_size %u, rxbuf_startphy %08llx\n",
++ adev->txbuf_start, adev->txbuf_area_size,
++ (unsigned long long)adev->txbuf_startphy,
++ adev->txdesc_size, adev->txdesc_start,
++ adev->txhostdesc_start, adev->txhostdesc_area_size,
++ (unsigned long long)adev->txhostdesc_startphy,
++ adev->rxdesc_start,
++ adev->rxhostdesc_start, adev->rxhostdesc_area_size,
++ (unsigned long long)adev->rxhostdesc_startphy,
++ adev->rxbuf_start, adev->rxbuf_area_size,
++ (unsigned long long)adev->rxbuf_startphy);
++
++ FN_EXIT0;
++ return p;
++}
++
++
++/***********************************************************************
++*/
++int
++acxpci_proc_eeprom_output(char *buf, acx_device_t *adev)
++{
++ char *p = buf;
++ int i;
++
++ FN_ENTER;
++
++ for (i = 0; i < 0x400; i++) {
++ acxpci_read_eeprom_byte(adev, i, p++);
++ }
++
++ FN_EXIT1(p - buf);
++ return p - buf;
++}
++
++
++/***********************************************************************
++*/
++void
++acxpci_set_interrupt_mask(acx_device_t *adev)
++{
++ if (IS_ACX111(adev)) {
++ adev->irq_mask = (u16) ~(0
++ /* | HOST_INT_RX_DATA */
++ | HOST_INT_TX_COMPLETE
++ /* | HOST_INT_TX_XFER */
++ | HOST_INT_RX_COMPLETE
++ /* | HOST_INT_DTIM */
++ /* | HOST_INT_BEACON */
++ /* | HOST_INT_TIMER */
++ /* | HOST_INT_KEY_NOT_FOUND */
++ | HOST_INT_IV_ICV_FAILURE
++ | HOST_INT_CMD_COMPLETE
++ | HOST_INT_INFO
++ /* | HOST_INT_OVERFLOW */
++ /* | HOST_INT_PROCESS_ERROR */
++ | HOST_INT_SCAN_COMPLETE
++ | HOST_INT_FCS_THRESHOLD
++ /* | HOST_INT_UNKNOWN */
++ );
++ /* Or else acx100 won't signal cmd completion, right? */
++ adev->irq_mask_off = (u16)~( HOST_INT_CMD_COMPLETE ); /* 0xfdff */
++ } else {
++ adev->irq_mask = (u16) ~(0
++ /* | HOST_INT_RX_DATA */
++ | HOST_INT_TX_COMPLETE
++ /* | HOST_INT_TX_XFER */
++ | HOST_INT_RX_COMPLETE
++ /* | HOST_INT_DTIM */
++ /* | HOST_INT_BEACON */
++ /* | HOST_INT_TIMER */
++ /* | HOST_INT_KEY_NOT_FOUND */
++ /* | HOST_INT_IV_ICV_FAILURE */
++ | HOST_INT_CMD_COMPLETE
++ | HOST_INT_INFO
++ /* | HOST_INT_OVERFLOW */
++ /* | HOST_INT_PROCESS_ERROR */
++ | HOST_INT_SCAN_COMPLETE
++ /* | HOST_INT_FCS_THRESHOLD */
++ /* | HOST_INT_UNKNOWN */
++ );
++ adev->irq_mask_off = (u16)~( HOST_INT_UNKNOWN ); /* 0x7fff */
++ }
++}
++
++
++/***********************************************************************
++*/
++int
++acx100pci_s_set_tx_level(acx_device_t *adev, u8 level_dbm)
++{
++ /* since it can be assumed that at least the Maxim radio has a
++ * maximum power output of 20dBm and since it also can be
++ * assumed that these values drive the DAC responsible for
++ * setting the linear Tx level, I'd guess that these values
++ * should be the corresponding linear values for a dBm value,
++ * in other words: calculate the values from that formula:
++ * Y [dBm] = 10 * log (X [mW])
++ * then scale the 0..63 value range onto the 1..100mW range (0..20 dBm)
++ * and you're done...
++ * Hopefully that's ok, but you never know if we're actually
++ * right... (especially since Windows XP doesn't seem to show
++ * actual Tx dBm values :-P) */
++
++ /* NOTE: on Maxim, value 30 IS 30mW, and value 10 IS 10mW - so the
++ * values are EXACTLY mW!!! Not sure about RFMD and others,
++ * though... */
++ static const u8 dbm2val_maxim[21] = {
++ 63, 63, 63, 62,
++ 61, 61, 60, 60,
++ 59, 58, 57, 55,
++ 53, 50, 47, 43,
++ 38, 31, 23, 13,
++ 0
++ };
++ static const u8 dbm2val_rfmd[21] = {
++ 0, 0, 0, 1,
++ 2, 2, 3, 3,
++ 4, 5, 6, 8,
++ 10, 13, 16, 20,
++ 25, 32, 41, 50,
++ 63
++ };
++ const u8 *table;
++
++ switch (adev->radio_type) {
++ case RADIO_MAXIM_0D:
++ table = &dbm2val_maxim[0];
++ break;
++ case RADIO_RFMD_11:
++ case RADIO_RALINK_15:
++ table = &dbm2val_rfmd[0];
++ break;
++ default:
++ printk("%s: unknown/unsupported radio type, "
++ "cannot modify tx power level yet!\n",
++ adev->ndev->name);
++ return NOT_OK;
++ }
++ printk("%s: changing radio power level to %u dBm (%u)\n",
++ adev->ndev->name, level_dbm, table[level_dbm]);
++ acxpci_s_write_phy_reg(adev, 0x11, table[level_dbm]);
++ return OK;
++}
++
++
++/***********************************************************************
++** Data for init_module/cleanup_module
++*/
++static const struct pci_device_id
++acxpci_id_tbl[] __devinitdata = {
++ {
++ .vendor = PCI_VENDOR_ID_TI,
++ .device = PCI_DEVICE_ID_TI_TNETW1100A,
++ .subvendor = PCI_ANY_ID,
++ .subdevice = PCI_ANY_ID,
++ .driver_data = CHIPTYPE_ACX100,
++ },
++ {
++ .vendor = PCI_VENDOR_ID_TI,
++ .device = PCI_DEVICE_ID_TI_TNETW1100B,
++ .subvendor = PCI_ANY_ID,
++ .subdevice = PCI_ANY_ID,
++ .driver_data = CHIPTYPE_ACX100,
++ },
++ {
++ .vendor = PCI_VENDOR_ID_TI,
++ .device = PCI_DEVICE_ID_TI_TNETW1130,
++ .subvendor = PCI_ANY_ID,
++ .subdevice = PCI_ANY_ID,
++ .driver_data = CHIPTYPE_ACX111,
++ },
++ {
++ .vendor = 0,
++ .device = 0,
++ .subvendor = 0,
++ .subdevice = 0,
++ .driver_data = 0,
++ }
++};
++
++MODULE_DEVICE_TABLE(pci, acxpci_id_tbl);
++
++/* FIXME: checks should be removed once driver is included in the kernel */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 11)
++/* pci_name() got introduced at start of 2.6.x,
++ * got mandatory (slot_name member removed) in 2.6.11-bk1 */
++#define pci_name(x) x->slot_name
++#endif
++
++static struct pci_driver
++acxpci_drv_id = {
++ .name = "acx_pci",
++ .id_table = acxpci_id_tbl,
++ .probe = acxpci_e_probe,
++ .remove = __devexit_p(acxpci_e_remove),
++#ifdef CONFIG_PM
++ .suspend = acxpci_e_suspend,
++ .resume = acxpci_e_resume
++#endif /* CONFIG_PM */
++};
++
++
++/***********************************************************************
++** acxpci_e_init_module
++**
++** Module initialization routine, called once at module load time
++*/
++int __init
++acxpci_e_init_module(void)
++{
++ int res;
++
++ FN_ENTER;
++
++#if (ACX_IO_WIDTH==32)
++ printk("acx: compiled to use 32bit I/O access. "
++ "I/O timing issues might occur, such as "
++ "non-working firmware upload. Report them\n");
++#else
++ printk("acx: compiled to use 16bit I/O access only "
++ "(compatibility mode)\n");
++#endif
++
++#ifdef __LITTLE_ENDIAN
++#define ENDIANNESS_STRING "running on a little-endian CPU\n"
++#else
++#define ENDIANNESS_STRING "running on a BIG-ENDIAN CPU\n"
++#endif
++ log(L_INIT,
++ ENDIANNESS_STRING
++ "PCI module " ACX_RELEASE " initialized, "
++ "waiting for cards to probe...\n"
++ );
++
++ res = pci_register_driver(&acxpci_drv_id);
++ FN_EXIT1(res);
++ return res;
++}
++
++
++/***********************************************************************
++** acxpci_e_cleanup_module
++**
++** Called at module unload time. This is our last chance to
++** clean up after ourselves.
++*/
++void __exit
++acxpci_e_cleanup_module(void)
++{
++ FN_ENTER;
++
++ pci_unregister_driver(&acxpci_drv_id);
++
++ FN_EXIT0;
++}
+Index: linux-2.6.22/drivers/net/wireless/acx/rx3000_acx.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/rx3000_acx.c 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,110 @@
++/*
++ * WLAN (TI TNETW1100B) support in the HP iPAQ RX3000
++ *
++ * Copyright (c) 2006 SDG Systems, LLC
++ * Copyright (c) 2006 Roman Moravcik
++ *
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License. See the file COPYING in the main directory of this archive for
++ * more details.
++ *
++ * Based on hx4700_acx.c
++ */
++
++
++#include <linux/kernel.h>
++#include <linux/platform_device.h>
++#include <linux/delay.h>
++#include <linux/dpm.h>
++#include <linux/leds.h>
++
++#include <asm/hardware.h>
++
++#include <asm/arch/regs-gpio.h>
++#include <linux/mfd/asic3_base.h>
++#include <asm/arch/rx3000.h>
++#include <asm/arch/rx3000-asic3.h>
++#include <asm/io.h>
++
++#include "acx_hw.h"
++
++extern struct platform_device s3c_device_asic3;
++
++static int rx3000_wlan_start(void)
++{
++ DPM_DEBUG("rx3000_acx: Turning on\n");
++ asic3_set_gpio_out_b(&s3c_device_asic3.dev, ASIC3_GPB3, ASIC3_GPB3);
++ mdelay(20);
++ asic3_set_gpio_out_c(&s3c_device_asic3.dev, ASIC3_GPC13, ASIC3_GPC13);
++ mdelay(20);
++ asic3_set_gpio_out_c(&s3c_device_asic3.dev, ASIC3_GPC11, ASIC3_GPC11);
++ mdelay(100);
++ asic3_set_gpio_out_b(&s3c_device_asic3.dev, ASIC3_GPB3, ASIC3_GPB3);
++ mdelay(20);
++ s3c2410_gpio_cfgpin(S3C2410_GPA15, S3C2410_GPA15_nGCS4);
++ mdelay(100);
++ s3c2410_gpio_setpin(S3C2410_GPA11, 0);
++ mdelay(50);
++ s3c2410_gpio_setpin(S3C2410_GPA11, 1);
++ led_trigger_event_shared(rx3000_radio_trig, LED_FULL);
++ return 0;
++}
++
++static int rx3000_wlan_stop(void)
++{
++ DPM_DEBUG("rx3000_acx: Turning off\n");
++ s3c2410_gpio_setpin(S3C2410_GPA15, 1);
++ s3c2410_gpio_cfgpin(S3C2410_GPA15, S3C2410_GPA15_OUT);
++ asic3_set_gpio_out_b(&s3c_device_asic3.dev, ASIC3_GPB3, 0);
++ asic3_set_gpio_out_c(&s3c_device_asic3.dev, ASIC3_GPC13, 0);
++ asic3_set_gpio_out_c(&s3c_device_asic3.dev, ASIC3_GPC11, 0);
++ led_trigger_event_shared(rx3000_radio_trig, LED_OFF);
++ return 0;
++}
++
++static struct resource acx_resources[] = {
++ [0] = {
++ .start = RX3000_PA_WLAN,
++ .end = RX3000_PA_WLAN + 0x20,
++ .flags = IORESOURCE_MEM,
++ },
++ [1] = {
++ .start = IRQ_EINT16,
++ .end = IRQ_EINT16,
++ .flags = IORESOURCE_IRQ,
++ },
++};
++
++static struct acx_hardware_data acx_data = {
++ .start_hw = rx3000_wlan_start,
++ .stop_hw = rx3000_wlan_stop,
++};
++
++static struct platform_device acx_device = {
++ .name = "acx-mem",
++ .dev = {
++ .platform_data = &acx_data,
++ },
++ .num_resources = ARRAY_SIZE(acx_resources),
++ .resource = acx_resources,
++};
++
++static int __init rx3000_wlan_init(void)
++{
++ printk("rx3000_wlan_init: acx-mem platform_device_register\n");
++ return platform_device_register(&acx_device);
++}
++
++
++static void __exit rx3000_wlan_exit(void)
++{
++ platform_device_unregister(&acx_device);
++}
++
++module_init(rx3000_wlan_init);
++module_exit(rx3000_wlan_exit);
++
++MODULE_AUTHOR("Todd Blumer <todd@sdgsystems.com>, Roman Moravcik <roman.moravcik@gmail.com>");
++MODULE_DESCRIPTION("WLAN driver for HP iPAQ RX3000");
++MODULE_LICENSE("GPL");
++
+Index: linux-2.6.22/drivers/net/wireless/acx/setrate.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/setrate.c 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,213 @@
++/* TODO: stop #including, move into wireless.c
++ * until then, keep in sync copies in prism54/ and acx/ dirs
++ * code+data size: less than 1k */
++
++enum {
++ DOT11_RATE_1,
++ DOT11_RATE_2,
++ DOT11_RATE_5,
++ DOT11_RATE_11,
++ DOT11_RATE_22,
++ DOT11_RATE_33,
++ DOT11_RATE_6,
++ DOT11_RATE_9,
++ DOT11_RATE_12,
++ DOT11_RATE_18,
++ DOT11_RATE_24,
++ DOT11_RATE_36,
++ DOT11_RATE_48,
++ DOT11_RATE_54
++};
++enum {
++ DOT11_MOD_DBPSK,
++ DOT11_MOD_DQPSK,
++ DOT11_MOD_CCK,
++ DOT11_MOD_OFDM,
++ DOT11_MOD_CCKOFDM,
++ DOT11_MOD_PBCC
++};
++static const u8 ratelist[] = { 1,2,5,11,22,33,6,9,12,18,24,36,48,54 };
++static const u8 dot11ratebyte[] = { 1*2,2*2,11,11*2,22*2,33*2,6*2,9*2,12*2,18*2,24*2,36*2,48*2,54*2 };
++static const u8 default_modulation[] = {
++ DOT11_MOD_DBPSK,
++ DOT11_MOD_DQPSK,
++ DOT11_MOD_CCK,
++ DOT11_MOD_CCK,
++ DOT11_MOD_PBCC,
++ DOT11_MOD_PBCC,
++ DOT11_MOD_OFDM,
++ DOT11_MOD_OFDM,
++ DOT11_MOD_OFDM,
++ DOT11_MOD_OFDM,
++ DOT11_MOD_OFDM,
++ DOT11_MOD_OFDM,
++ DOT11_MOD_OFDM,
++ DOT11_MOD_OFDM
++};
++
++static /* TODO: remove 'static' when moved to wireless.c */
++int
++rate_mbit2enum(int n) {
++ int i=0;
++ while(i<sizeof(ratelist)) {
++ if(n==ratelist[i]) return i;
++ i++;
++ }
++ return -EINVAL;
++}
++
++static int
++get_modulation(int r_enum, char suffix) {
++ if(suffix==',' || suffix==' ' || suffix=='\0') {
++ /* could shorten default_mod by 8 bytes:
++ if(r_enum>=DOT11_RATE_6) return DOT11_MOD_OFDM; */
++ return default_modulation[r_enum];
++ }
++ if(suffix=='c') {
++ if(r_enum<DOT11_RATE_5 || r_enum>DOT11_RATE_11) return -EINVAL;
++ return DOT11_MOD_CCK;
++ }
++ if(suffix=='p') {
++ if(r_enum<DOT11_RATE_5 || r_enum>DOT11_RATE_33) return -EINVAL;
++ return DOT11_MOD_PBCC;
++ }
++ if(suffix=='o') {
++ if(r_enum<DOT11_RATE_6) return -EINVAL;
++ return DOT11_MOD_OFDM;
++ }
++ if(suffix=='d') {
++ if(r_enum<DOT11_RATE_6) return -EINVAL;
++ return DOT11_MOD_CCKOFDM;
++ }
++ return -EINVAL;
++}
++
++#ifdef UNUSED
++static int
++fill_ratevector(const char **pstr, u8 *vector, int size,
++ int (*supported)(int mbit, int mod, void *opaque), void *opaque, int or_mask)
++{
++ unsigned long rate_mbit;
++ int rate_enum,mod;
++ const char *str = *pstr;
++ char c;
++
++ do {
++ rate_mbit = simple_strtoul(str, (char**)&str, 10);
++ if(rate_mbit>INT_MAX) return -EINVAL;
++
++ rate_enum = rate_mbit2enum(rate_mbit);
++ if(rate_enum<0) return rate_enum;
++
++ c = *str;
++ mod = get_modulation(rate_enum, c);
++ if(mod<0) return mod;
++
++ if(c>='a' && c<='z') c = *++str;
++ if(c!=',' && c!=' ' && c!='\0') return -EINVAL;
++
++ if(supported) {
++ int r = supported(rate_mbit, mod, opaque);
++ if(r) return r;
++ }
++
++ *vector++ = dot11ratebyte[rate_enum] | or_mask;
++
++ size--;
++ str++;
++ } while(size>0 && c==',');
++
++ if(size<1) return -E2BIG;
++ *vector=0; /* TODO: sort, remove dups? */
++
++ *pstr = str-1;
++ return 0;
++}
++
++static /* TODO: remove 'static' when moved to wireless.c */
++int
++fill_ratevectors(const char *str, u8 *brate, u8 *orate, int size,
++ int (*supported)(int mbit, int mod, void *opaque), void *opaque)
++{
++ int r;
++
++ r = fill_ratevector(&str, brate, size, supported, opaque, 0x80);
++ if(r) return r;
++
++ orate[0] = 0;
++ if(*str==' ') {
++ str++;
++ r = fill_ratevector(&str, orate, size, supported, opaque, 0);
++ if(r) return r;
++ /* TODO: sanitize, e.g. remove/error on rates already in basic rate set? */
++ }
++ if(*str)
++ return -EINVAL;
++
++ return 0;
++}
++#endif
++
++/* TODO: use u64 masks? */
++
++static int
++fill_ratemask(const char **pstr, u32* mask,
++ int (*supported)(int mbit, int mod,void *opaque),
++ u32 (*gen_mask)(int mbit, int mod,void *opaque),
++ void *opaque)
++{
++ unsigned long rate_mbit;
++ int rate_enum,mod;
++ u32 m = 0;
++ const char *str = *pstr;
++ char c;
++
++ do {
++ rate_mbit = simple_strtoul(str, (char**)&str, 10);
++ if(rate_mbit>INT_MAX) return -EINVAL;
++
++ rate_enum = rate_mbit2enum(rate_mbit);
++ if(rate_enum<0) return rate_enum;
++
++ c = *str;
++ mod = get_modulation(rate_enum, c);
++ if(mod<0) return mod;
++
++ if(c>='a' && c<='z') c = *++str;
++ if(c!=',' && c!=' ' && c!='\0') return -EINVAL;
++
++ if(supported) {
++ int r = supported(rate_mbit, mod, opaque);
++ if(r) return r;
++ }
++
++ m |= gen_mask(rate_mbit, mod, opaque);
++ str++;
++ } while(c==',');
++
++ *pstr = str-1;
++ *mask |= m;
++ return 0;
++}
++
++static /* TODO: remove 'static' when moved to wireless.c */
++int
++fill_ratemasks(const char *str, u32 *bmask, u32 *omask,
++ int (*supported)(int mbit, int mod,void *opaque),
++ u32 (*gen_mask)(int mbit, int mod,void *opaque),
++ void *opaque)
++{
++ int r;
++
++ r = fill_ratemask(&str, bmask, supported, gen_mask, opaque);
++ if(r) return r;
++
++ if(*str==' ') {
++ str++;
++ r = fill_ratemask(&str, omask, supported, gen_mask, opaque);
++ if(r) return r;
++ }
++ if(*str)
++ return -EINVAL;
++ return 0;
++}
+Index: linux-2.6.22/drivers/net/wireless/acx/usb.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/usb.c 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,1922 @@
++/***********************************************************************
++** Copyright (C) 2003 ACX100 Open Source Project
++**
++** The contents of this file are subject to the Mozilla Public
++** License Version 1.1 (the "License"); you may not use this file
++** except in compliance with the License. You may obtain a copy of
++** the License at http://www.mozilla.org/MPL/
++**
++** Software distributed under the License is distributed on an "AS
++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
++** implied. See the License for the specific language governing
++** rights and limitations under the License.
++**
++** Alternatively, the contents of this file may be used under the
++** terms of the GNU Public License version 2 (the "GPL"), in which
++** case the provisions of the GPL are applicable instead of the
++** above. If you wish to allow the use of your version of this file
++** only under the terms of the GPL and not to allow others to use
++** your version of this file under the MPL, indicate your decision
++** by deleting the provisions above and replace them with the notice
++** and other provisions required by the GPL. If you do not delete
++** the provisions above, a recipient may use your version of this
++** file under either the MPL or the GPL.
++** ---------------------------------------------------------------------
++** Inquiries regarding the ACX100 Open Source Project can be
++** made directly to:
++**
++** acx100-users@lists.sf.net
++** http://acx100.sf.net
++** ---------------------------------------------------------------------
++*/
++
++/***********************************************************************
++** USB support for TI ACX100 based devices. Many parts are taken from
++** the PCI driver.
++**
++** Authors:
++** Martin Wawro <martin.wawro AT uni-dortmund.de>
++** Andreas Mohr <andi AT lisas.de>
++**
++** LOCKING
++** callback functions called by USB core are running in interrupt context
++** and thus have names with _i_.
++*/
++#define ACX_USB 1
++
++#include <linux/version.h>
++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
++#include <linux/config.h>
++#endif
++#include <linux/types.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/kernel.h>
++#include <linux/usb.h>
++#include <linux/netdevice.h>
++#include <linux/rtnetlink.h>
++#include <linux/etherdevice.h>
++#include <linux/wireless.h>
++#include <net/iw_handler.h>
++#include <linux/vmalloc.h>
++
++#include "acx.h"
++
++
++/***********************************************************************
++*/
++/* number of endpoints of an interface */
++#define NUM_EP(intf) (intf)->altsetting[0].desc.bNumEndpoints
++#define EP(intf, nr) (intf)->altsetting[0].endpoint[(nr)].desc
++#define GET_DEV(udev) usb_get_dev((udev))
++#define PUT_DEV(udev) usb_put_dev((udev))
++#define SET_NETDEV_OWNER(ndev, owner) /* not needed anymore ??? */
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14)
++/* removed in 2.6.14. We will use fake value for now */
++#define URB_ASYNC_UNLINK 0
++#endif
++
++
++/***********************************************************************
++*/
++/* ACX100 (TNETW1100) USB device: D-Link DWL-120+ */
++#define ACX100_VENDOR_ID 0x2001
++#define ACX100_PRODUCT_ID_UNBOOTED 0x3B01
++#define ACX100_PRODUCT_ID_BOOTED 0x3B00
++
++/* TNETW1450 USB devices */
++#define VENDOR_ID_DLINK 0x07b8 /* D-Link Corp. */
++#define PRODUCT_ID_WUG2400 0xb21a /* AboCom WUG2400 or SafeCom SWLUT-54125 */
++#define VENDOR_ID_AVM_GMBH 0x057c
++#define PRODUCT_ID_AVM_WLAN_USB 0x5601
++#define PRODUCT_ID_AVM_WLAN_USB_si 0x6201 /* "self install" named Version: driver kills kernel on inbound scans from fritz box ??? */
++#define VENDOR_ID_ZCOM 0x0cde
++#define PRODUCT_ID_ZCOM_XG750 0x0017 /* not tested yet */
++#define VENDOR_ID_TI 0x0451
++#define PRODUCT_ID_TI_UNKNOWN 0x60c5 /* not tested yet */
++
++#define ACX_USB_CTRL_TIMEOUT 5500 /* steps in ms */
++
++/* Buffer size for fw upload, same for both ACX100 USB and TNETW1450 */
++#define USB_RWMEM_MAXLEN 2048
++
++/* The number of bulk URBs to use */
++#define ACX_TX_URB_CNT 8
++#define ACX_RX_URB_CNT 2
++
++/* Should be sent to the bulkout endpoint */
++#define ACX_USB_REQ_UPLOAD_FW 0x10
++#define ACX_USB_REQ_ACK_CS 0x11
++#define ACX_USB_REQ_CMD 0x12
++
++/***********************************************************************
++** Prototypes
++*/
++static int acxusb_e_probe(struct usb_interface *, const struct usb_device_id *);
++static void acxusb_e_disconnect(struct usb_interface *);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
++static void acxusb_i_complete_tx(struct urb *);
++static void acxusb_i_complete_rx(struct urb *);
++#else
++static void acxusb_i_complete_tx(struct urb *, struct pt_regs *);
++static void acxusb_i_complete_rx(struct urb *, struct pt_regs *);
++#endif
++static int acxusb_e_open(struct net_device *);
++static int acxusb_e_close(struct net_device *);
++static void acxusb_i_set_rx_mode(struct net_device *);
++static int acxusb_boot(struct usb_device *, int is_tnetw1450, int *radio_type);
++
++static void acxusb_l_poll_rx(acx_device_t *adev, usb_rx_t* rx);
++
++static void acxusb_i_tx_timeout(struct net_device *);
++
++/* static void dump_device(struct usb_device *); */
++/* static void dump_device_descriptor(struct usb_device_descriptor *); */
++/* static void dump_config_descriptor(struct usb_config_descriptor *); */
++
++/***********************************************************************
++** Module Data
++*/
++#define TXBUFSIZE sizeof(usb_txbuffer_t)
++/*
++ * Now, this is just plain lying, but the device insists in giving us
++ * huge packets. We supply extra space after rxbuffer. Need to understand
++ * it better...
++ */
++#define RXBUFSIZE (sizeof(rxbuffer_t) + \
++ (sizeof(usb_rx_t) - sizeof(struct usb_rx_plain)))
++
++static const struct usb_device_id
++acxusb_ids[] = {
++ { USB_DEVICE(ACX100_VENDOR_ID, ACX100_PRODUCT_ID_BOOTED) },
++ { USB_DEVICE(ACX100_VENDOR_ID, ACX100_PRODUCT_ID_UNBOOTED) },
++ { USB_DEVICE(VENDOR_ID_DLINK, PRODUCT_ID_WUG2400) },
++ { USB_DEVICE(VENDOR_ID_AVM_GMBH, PRODUCT_ID_AVM_WLAN_USB) },
++ { USB_DEVICE(VENDOR_ID_AVM_GMBH, PRODUCT_ID_AVM_WLAN_USB_si) },
++ { USB_DEVICE(VENDOR_ID_ZCOM, PRODUCT_ID_ZCOM_XG750) },
++ { USB_DEVICE(VENDOR_ID_TI, PRODUCT_ID_TI_UNKNOWN) },
++ {}
++};
++
++MODULE_DEVICE_TABLE(usb, acxusb_ids);
++
++/* USB driver data structure as required by the kernel's USB core */
++static struct usb_driver
++acxusb_driver = {
++ .name = "acx_usb",
++ .probe = acxusb_e_probe,
++ .disconnect = acxusb_e_disconnect,
++ .id_table = acxusb_ids
++};
++
++
++/***********************************************************************
++** USB helper
++**
++** ldd3 ch13 says:
++** When the function is usb_kill_urb, the urb lifecycle is stopped. This
++** function is usually used when the device is disconnected from the system,
++** in the disconnect callback. For some drivers, the usb_unlink_urb function
++** should be used to tell the USB core to stop an urb. This function does not
++** wait for the urb to be fully stopped before returning to the caller.
++** This is useful for stoppingthe urb while in an interrupt handler or when
++** a spinlock is held, as waiting for a urb to fully stop requires the ability
++** for the USB core to put the calling process to sleep. This function requires
++** that the URB_ASYNC_UNLINK flag value be set in the urb that is being asked
++** to be stopped in order to work properly.
++**
++** (URB_ASYNC_UNLINK is obsolete, usb_unlink_urb will always be
++** asynchronous while usb_kill_urb is synchronous and should be called
++** directly (drivers/usb/core/urb.c))
++**
++** In light of this, timeout is just for paranoid reasons...
++*
++* Actually, it's useful for debugging. If we reach timeout, we're doing
++* something wrong with the urbs.
++*/
++static void
++acxusb_unlink_urb(struct urb* urb)
++{
++ if (!urb)
++ return;
++
++ if (urb->status == -EINPROGRESS) {
++ int timeout = 10;
++
++ usb_unlink_urb(urb);
++ while (--timeout && urb->status == -EINPROGRESS) {
++ mdelay(1);
++ }
++ if (!timeout) {
++ printk("acx_usb: urb unlink timeout!\n");
++ }
++ }
++}
++
++
++/***********************************************************************
++** EEPROM and PHY read/write helpers
++*/
++/***********************************************************************
++** acxusb_s_read_phy_reg
++*/
++int
++acxusb_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf)
++{
++ /* mem_read_write_t mem; */
++
++ FN_ENTER;
++
++ printk("%s doesn't seem to work yet, disabled.\n", __func__);
++
++ /*
++ mem.addr = cpu_to_le16(reg);
++ mem.type = cpu_to_le16(0x82);
++ mem.len = cpu_to_le32(4);
++ acx_s_issue_cmd(adev, ACX1xx_CMD_MEM_READ, &mem, sizeof(mem));
++ *charbuf = mem.data;
++ log(L_DEBUG, "read radio PHY[0x%04X]=0x%02X\n", reg, *charbuf);
++ */
++
++ FN_EXIT1(OK);
++ return OK;
++}
++
++
++/***********************************************************************
++*/
++int
++acxusb_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value)
++{
++ mem_read_write_t mem;
++
++ FN_ENTER;
++
++ mem.addr = cpu_to_le16(reg);
++ mem.type = cpu_to_le16(0x82);
++ mem.len = cpu_to_le32(4);
++ mem.data = value;
++ acx_s_issue_cmd(adev, ACX1xx_CMD_MEM_WRITE, &mem, sizeof(mem));
++ log(L_DEBUG, "write radio PHY[0x%04X]=0x%02X\n", reg, value);
++
++ FN_EXIT1(OK);
++ return OK;
++}
++
++
++/***********************************************************************
++** acxusb_s_issue_cmd_timeo
++** Excecutes a command in the command mailbox
++**
++** buffer = a pointer to the data.
++** The data must not include 4 byte command header
++*/
++
++/* TODO: ideally we shall always know how much we need
++** and this shall be 0 */
++#define BOGUS_SAFETY_PADDING 0x40
++
++#undef FUNC
++#define FUNC "issue_cmd"
++
++#if !ACX_DEBUG
++int
++acxusb_s_issue_cmd_timeo(
++ acx_device_t *adev,
++ unsigned cmd,
++ void *buffer,
++ unsigned buflen,
++ unsigned timeout)
++{
++#else
++int
++acxusb_s_issue_cmd_timeo_debug(
++ acx_device_t *adev,
++ unsigned cmd,
++ void *buffer,
++ unsigned buflen,
++ unsigned timeout,
++ const char* cmdstr)
++{
++#endif
++ /* USB ignores timeout param */
++
++ struct usb_device *usbdev;
++ struct {
++ u16 cmd;
++ u16 status;
++ u8 data[1];
++ } ACX_PACKED *loc;
++ const char *devname;
++ int acklen, blocklen, inpipe, outpipe;
++ int cmd_status;
++ int result;
++
++ FN_ENTER;
++
++ devname = adev->ndev->name;
++ /* no "wlan%%d: ..." please */
++ if (!devname || !devname[0] || devname[4]=='%')
++ devname = "acx";
++
++ log(L_CTL, FUNC"(cmd:%s,buflen:%u,type:0x%04X)\n",
++ cmdstr, buflen,
++ buffer ? le16_to_cpu(((acx_ie_generic_t *)buffer)->type) : -1);
++
++ loc = kmalloc(buflen + 4 + BOGUS_SAFETY_PADDING, GFP_KERNEL);
++ if (!loc) {
++ printk("%s: "FUNC"(): no memory for data buffer\n", devname);
++ goto bad;
++ }
++
++ /* get context from acx_device */
++ usbdev = adev->usbdev;
++
++ /* check which kind of command was issued */
++ loc->cmd = cpu_to_le16(cmd);
++ loc->status = 0;
++
++/* NB: buflen == frmlen + 4
++**
++** Interrogate: write 8 bytes: (cmd,status,rid,frmlen), then
++** read (cmd,status,rid,frmlen,data[frmlen]) back
++**
++** Configure: write (cmd,status,rid,frmlen,data[frmlen])
++**
++** Possibly bogus special handling of ACX1xx_IE_SCAN_STATUS removed
++*/
++
++ /* now write the parameters of the command if needed */
++ acklen = buflen + 4 + BOGUS_SAFETY_PADDING;
++ blocklen = buflen;
++ if (buffer && buflen) {
++ /* if it's an INTERROGATE command, just pass the length
++ * of parameters to read, as data */
++ if (cmd == ACX1xx_CMD_INTERROGATE) {
++ blocklen = 4;
++ acklen = buflen + 4;
++ }
++ memcpy(loc->data, buffer, blocklen);
++ }
++ blocklen += 4; /* account for cmd,status */
++
++ /* obtain the I/O pipes */
++ outpipe = usb_sndctrlpipe(usbdev, 0);
++ inpipe = usb_rcvctrlpipe(usbdev, 0);
++ log(L_CTL, "ctrl inpipe=0x%X outpipe=0x%X\n", inpipe, outpipe);
++ log(L_CTL, "sending USB control msg (out) (blocklen=%d)\n", blocklen);
++ if (acx_debug & L_DATA)
++ acx_dump_bytes(loc, blocklen);
++
++ result = usb_control_msg(usbdev, outpipe,
++ ACX_USB_REQ_CMD, /* request */
++ USB_TYPE_VENDOR|USB_DIR_OUT, /* requesttype */
++ 0, /* value */
++ 0, /* index */
++ loc, /* dataptr */
++ blocklen, /* size */
++ ACX_USB_CTRL_TIMEOUT /* timeout in ms */
++ );
++
++ if (result == -ENODEV) {
++ log(L_CTL, "no device present (unplug?)\n");
++ goto good;
++ }
++
++ log(L_CTL, "wrote %d bytes\n", result);
++ if (result < 0) {
++ goto bad;
++ }
++
++ /* check for device acknowledge */
++ log(L_CTL, "sending USB control msg (in) (acklen=%d)\n", acklen);
++ loc->status = 0; /* delete old status flag -> set to IDLE */
++ /* shall we zero out the rest? */
++ result = usb_control_msg(usbdev, inpipe,
++ ACX_USB_REQ_CMD, /* request */
++ USB_TYPE_VENDOR|USB_DIR_IN, /* requesttype */
++ 0, /* value */
++ 0, /* index */
++ loc, /* dataptr */
++ acklen, /* size */
++ ACX_USB_CTRL_TIMEOUT /* timeout in ms */
++ );
++ if (result < 0) {
++ printk("%s: "FUNC"(): USB read error %d\n", devname, result);
++ goto bad;
++ }
++ if (acx_debug & L_CTL) {
++ printk("read %d bytes: ", result);
++ acx_dump_bytes(loc, result);
++ }
++
++/*
++ check for result==buflen+4? Was seen:
++
++interrogate(type:ACX100_IE_DOT11_ED_THRESHOLD,len:4)
++issue_cmd(cmd:ACX1xx_CMD_INTERROGATE,buflen:8,type:4111)
++ctrl inpipe=0x80000280 outpipe=0x80000200
++sending USB control msg (out) (blocklen=8)
++01 00 00 00 0F 10 04 00
++wrote 8 bytes
++sending USB control msg (in) (acklen=12) sizeof(loc->data
++read 4 bytes <==== MUST BE 12!!
++*/
++
++ cmd_status = le16_to_cpu(loc->status);
++ if (cmd_status != 1) {
++ printk("%s: "FUNC"(): cmd_status is not SUCCESS: %d (%s)\n",
++ devname, cmd_status, acx_cmd_status_str(cmd_status));
++ /* TODO: goto bad; ? */
++ }
++ if ((cmd == ACX1xx_CMD_INTERROGATE) && buffer && buflen) {
++ memcpy(buffer, loc->data, buflen);
++ log(L_CTL, "response frame: cmd=0x%04X status=%d\n",
++ le16_to_cpu(loc->cmd),
++ cmd_status);
++ }
++good:
++ kfree(loc);
++ FN_EXIT1(OK);
++ return OK;
++bad:
++ /* Give enough info so that callers can avoid
++ ** printing their own diagnostic messages */
++#if ACX_DEBUG
++ printk("%s: "FUNC"(cmd:%s) FAILED\n", devname, cmdstr);
++#else
++ printk("%s: "FUNC"(cmd:0x%04X) FAILED\n", devname, cmd);
++#endif
++ dump_stack();
++ kfree(loc);
++ FN_EXIT1(NOT_OK);
++ return NOT_OK;
++}
++
++
++/***********************************************************************
++** acxusb_boot()
++** Inputs:
++** usbdev -> Pointer to kernel's usb_device structure
++**
++** Returns:
++** (int) Errorcode or 0 on success
++**
++** This function triggers the loading of the firmware image from harddisk
++** and then uploads the firmware to the USB device. After uploading the
++** firmware and transmitting the checksum, the device resets and appears
++** as a new device on the USB bus (the device we can finally deal with)
++*/
++static inline int
++acxusb_fw_needs_padding(firmware_image_t *fw_image, unsigned int usb_maxlen)
++{
++ unsigned int num_xfers = ((fw_image->size - 1) / usb_maxlen) + 1;
++
++ return ((num_xfers % 2) == 0);
++}
++
++static int
++acxusb_boot(struct usb_device *usbdev, int is_tnetw1450, int *radio_type)
++{
++ char filename[sizeof("tiacx1NNusbcRR")];
++
++ firmware_image_t *fw_image = NULL;
++ char *usbbuf;
++ unsigned int offset;
++ unsigned int blk_len, inpipe, outpipe;
++ u32 num_processed;
++ u32 img_checksum, sum;
++ u32 file_size;
++ int result = -EIO;
++ int i;
++
++ FN_ENTER;
++
++ /* dump_device(usbdev); */
++
++ usbbuf = kmalloc(USB_RWMEM_MAXLEN, GFP_KERNEL);
++ if (!usbbuf) {
++ printk(KERN_ERR "acx: no memory for USB transfer buffer (%d bytes)\n", USB_RWMEM_MAXLEN);
++ result = -ENOMEM;
++ goto end;
++ }
++ if (is_tnetw1450) {
++ /* Obtain the I/O pipes */
++ outpipe = usb_sndbulkpipe(usbdev, 1);
++ inpipe = usb_rcvbulkpipe(usbdev, 2);
++
++ printk(KERN_DEBUG "wait for device ready\n");
++ for (i = 0; i <= 2; i++) {
++ result = usb_bulk_msg(usbdev, inpipe,
++ usbbuf,
++ USB_RWMEM_MAXLEN,
++ &num_processed,
++ 2000
++ );
++
++ if ((*(u32 *)&usbbuf[4] == 0x40000001)
++ && (*(u16 *)&usbbuf[2] == 0x1)
++ && ((*(u16 *)usbbuf & 0x3fff) == 0)
++ && ((*(u16 *)usbbuf & 0xc000) == 0xc000))
++ break;
++ msleep(10);
++ }
++ if (i == 2)
++ goto fw_end;
++
++ *radio_type = usbbuf[8];
++ } else {
++ /* Obtain the I/O pipes */
++ outpipe = usb_sndctrlpipe(usbdev, 0);
++ inpipe = usb_rcvctrlpipe(usbdev, 0);
++
++ /* FIXME: shouldn't be hardcoded */
++ *radio_type = RADIO_MAXIM_0D;
++ }
++
++ snprintf(filename, sizeof(filename), "tiacx1%02dusbc%02X",
++ is_tnetw1450 * 11, *radio_type);
++
++ fw_image = acx_s_read_fw(&usbdev->dev, filename, &file_size);
++ if (!fw_image) {
++ result = -EIO;
++ goto end;
++ }
++ log(L_INIT, "firmware size: %d bytes\n", file_size);
++
++ img_checksum = le32_to_cpu(fw_image->chksum);
++
++ if (is_tnetw1450) {
++ u8 cmdbuf[20];
++ const u8 *p;
++ u8 need_padding;
++ u32 tmplen, val;
++
++ memset(cmdbuf, 0, 16);
++
++ need_padding = acxusb_fw_needs_padding(fw_image, USB_RWMEM_MAXLEN);
++ tmplen = need_padding ? file_size-4 : file_size-8;
++ *(u16 *)&cmdbuf[0] = 0xc000;
++ *(u16 *)&cmdbuf[2] = 0x000b;
++ *(u32 *)&cmdbuf[4] = tmplen;
++ *(u32 *)&cmdbuf[8] = file_size-8;
++ *(u32 *)&cmdbuf[12] = img_checksum;
++
++ result = usb_bulk_msg(usbdev, outpipe, cmdbuf, 16, &num_processed, HZ);
++ if (result < 0)
++ goto fw_end;
++
++ p = (const u8 *)&fw_image->size;
++
++ /* first calculate checksum for image size part */
++ sum = p[0]+p[1]+p[2]+p[3];
++ p += 4;
++
++ /* now continue checksum for firmware data part */
++ tmplen = le32_to_cpu(fw_image->size);
++ for (i = 0; i < tmplen /* image size */; i++) {
++ sum += *p++;
++ }
++
++ if (sum != le32_to_cpu(fw_image->chksum)) {
++ printk("acx: FATAL: firmware upload: "
++ "checksums don't match! "
++ "(0x%08x vs. 0x%08x)\n",
++ sum, fw_image->chksum);
++ goto fw_end;
++ }
++
++ offset = 8;
++ while (offset < file_size) {
++ blk_len = file_size - offset;
++ if (blk_len > USB_RWMEM_MAXLEN) {
++ blk_len = USB_RWMEM_MAXLEN;
++ }
++
++ log(L_INIT, "uploading firmware (%d bytes, offset=%d)\n",
++ blk_len, offset);
++ memcpy(usbbuf, ((u8 *)fw_image) + offset, blk_len);
++
++ p = usbbuf;
++ for (i = 0; i < blk_len; i += 4) {
++ *(u32 *)p = be32_to_cpu(*(u32 *)p);
++ p += 4;
++ }
++
++ result = usb_bulk_msg(usbdev, outpipe, usbbuf, blk_len, &num_processed, HZ);
++ if ((result < 0) || (num_processed != blk_len))
++ goto fw_end;
++ offset += blk_len;
++ }
++ if (need_padding) {
++ printk(KERN_DEBUG "send padding\n");
++ memset(usbbuf, 0, 4);
++ result = usb_bulk_msg(usbdev, outpipe, usbbuf, 4, &num_processed, HZ);
++ if ((result < 0) || (num_processed != 4))
++ goto fw_end;
++ }
++ printk(KERN_DEBUG "read firmware upload result\n");
++ memset(cmdbuf, 0, 20); /* additional memset */
++ result = usb_bulk_msg(usbdev, inpipe, cmdbuf, 20, &num_processed, 2000);
++ if (result < 0)
++ goto fw_end;
++ if (*(u32 *)&cmdbuf[4] == 0x40000003)
++ goto fw_end;
++ if (*(u32 *)&cmdbuf[4])
++ goto fw_end;
++ if (*(u16 *)&cmdbuf[16] != 1)
++ goto fw_end;
++
++ val = *(u32 *)&cmdbuf[0];
++ if ((val & 0x3fff)
++ || ((val & 0xc000) != 0xc000))
++ goto fw_end;
++
++ val = *(u32 *)&cmdbuf[8];
++ if (val & 2) {
++ result = usb_bulk_msg(usbdev, inpipe, cmdbuf, 20, &num_processed, 2000);
++ if (result < 0)
++ goto fw_end;
++ val = *(u32 *)&cmdbuf[8];
++ }
++ /* yup, no "else" here! */
++ if (val & 1) {
++ memset(usbbuf, 0, 4);
++ result = usb_bulk_msg(usbdev, outpipe, usbbuf, 4, &num_processed, HZ);
++ if ((result < 0) || (!num_processed))
++ goto fw_end;
++ }
++
++ printk("TNETW1450 firmware upload successful!\n");
++ result = 0;
++ goto end;
++fw_end:
++ result = -EIO;
++ goto end;
++ } else {
++ /* ACX100 USB */
++
++ /* now upload the firmware, slice the data into blocks */
++ offset = 8;
++ while (offset < file_size) {
++ blk_len = file_size - offset;
++ if (blk_len > USB_RWMEM_MAXLEN) {
++ blk_len = USB_RWMEM_MAXLEN;
++ }
++ log(L_INIT, "uploading firmware (%d bytes, offset=%d)\n",
++ blk_len, offset);
++ memcpy(usbbuf, ((u8 *)fw_image) + offset, blk_len);
++ result = usb_control_msg(usbdev, outpipe,
++ ACX_USB_REQ_UPLOAD_FW,
++ USB_TYPE_VENDOR|USB_DIR_OUT,
++ (file_size - 8) & 0xffff, /* value */
++ (file_size - 8) >> 16, /* index */
++ usbbuf, /* dataptr */
++ blk_len, /* size */
++ 3000 /* timeout in ms */
++ );
++ offset += blk_len;
++ if (result < 0) {
++ printk(KERN_ERR "acx: error %d during upload "
++ "of firmware, aborting\n", result);
++ goto end;
++ }
++ }
++
++ /* finally, send the checksum and reboot the device */
++ /* does this trigger the reboot? */
++ result = usb_control_msg(usbdev, outpipe,
++ ACX_USB_REQ_UPLOAD_FW,
++ USB_TYPE_VENDOR|USB_DIR_OUT,
++ img_checksum & 0xffff, /* value */
++ img_checksum >> 16, /* index */
++ NULL, /* dataptr */
++ 0, /* size */
++ 3000 /* timeout in ms */
++ );
++ if (result < 0) {
++ printk(KERN_ERR "acx: error %d during tx of checksum, "
++ "aborting\n", result);
++ goto end;
++ }
++ result = usb_control_msg(usbdev, inpipe,
++ ACX_USB_REQ_ACK_CS,
++ USB_TYPE_VENDOR|USB_DIR_IN,
++ img_checksum & 0xffff, /* value */
++ img_checksum >> 16, /* index */
++ usbbuf, /* dataptr */
++ 8, /* size */
++ 3000 /* timeout in ms */
++ );
++ if (result < 0) {
++ printk(KERN_ERR "acx: error %d during ACK of checksum, "
++ "aborting\n", result);
++ goto end;
++ }
++ if (*usbbuf != 0x10) {
++ printk(KERN_ERR "acx: invalid checksum?\n");
++ result = -EINVAL;
++ goto end;
++ }
++ result = 0;
++ }
++
++end:
++ vfree(fw_image);
++ kfree(usbbuf);
++
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/* FIXME: maybe merge it with usual eeprom reading, into common code? */
++static void
++acxusb_s_read_eeprom_version(acx_device_t *adev)
++{
++ u8 eeprom_ver[0x8];
++
++ memset(eeprom_ver, 0, sizeof(eeprom_ver));
++ acx_s_interrogate(adev, &eeprom_ver, ACX1FF_IE_EEPROM_VER);
++
++ /* FIXME: which one of those values to take? */
++ adev->eeprom_version = eeprom_ver[5];
++}
++
++
++/*
++ * temporary helper function to at least fill important cfgopt members with
++ * useful replacement values until we figure out how one manages to fetch
++ * the configoption struct in the USB device case...
++ */
++static int
++acxusb_s_fill_configoption(acx_device_t *adev)
++{
++ adev->cfgopt_probe_delay = 200;
++ adev->cfgopt_dot11CCAModes = 4;
++ adev->cfgopt_dot11Diversity = 1;
++ adev->cfgopt_dot11ShortPreambleOption = 1;
++ adev->cfgopt_dot11PBCCOption = 1;
++ adev->cfgopt_dot11ChannelAgility = 0;
++ adev->cfgopt_dot11PhyType = 5;
++ adev->cfgopt_dot11TempType = 1;
++ return OK;
++}
++
++
++/***********************************************************************
++** acxusb_e_probe()
++**
++** This function is invoked by the kernel's USB core whenever a new device is
++** attached to the system or the module is loaded. It is presented a usb_device
++** structure from which information regarding the device is obtained and evaluated.
++** In case this driver is able to handle one of the offered devices, it returns
++** a non-null pointer to a driver context and thereby claims the device.
++*/
++
++static void
++dummy_netdev_init(struct net_device *ndev) {}
++
++static int
++acxusb_e_probe(struct usb_interface *intf, const struct usb_device_id *devID)
++{
++ struct usb_device *usbdev = interface_to_usbdev(intf);
++ acx_device_t *adev = NULL;
++ struct net_device *ndev = NULL;
++ struct usb_config_descriptor *config;
++ struct usb_endpoint_descriptor *epdesc;
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
++ struct usb_host_endpoint *ep;
++#endif
++ struct usb_interface_descriptor *ifdesc;
++ const char* msg;
++ int numconfigs, numfaces, numep;
++ int result = OK;
++ int i;
++ int radio_type;
++ /* this one needs to be more precise in case there appears a TNETW1450 from the same vendor */
++ int is_tnetw1450 = (usbdev->descriptor.idVendor != ACX100_VENDOR_ID);
++
++ FN_ENTER;
++
++ if (is_tnetw1450) {
++ /* Boot the device (i.e. upload the firmware) */
++ acxusb_boot(usbdev, is_tnetw1450, &radio_type);
++
++ /* TNETW1450-based cards will continue right away with
++ * the same USB ID after booting */
++ } else {
++ /* First check if this is the "unbooted" hardware */
++ if (usbdev->descriptor.idProduct == ACX100_PRODUCT_ID_UNBOOTED) {
++
++ /* Boot the device (i.e. upload the firmware) */
++ acxusb_boot(usbdev, is_tnetw1450, &radio_type);
++
++ /* DWL-120+ will first boot the firmware,
++ * then later have a *separate* probe() run
++ * since its USB ID will have changed after
++ * firmware boot!
++ * Since the first probe() run has no
++ * other purpose than booting the firmware,
++ * simply return immediately.
++ */
++ log(L_INIT, "finished booting, returning from probe()\n");
++ result = OK; /* success */
++ goto end;
++ }
++ else
++ /* device not unbooted, but invalid USB ID!? */
++ if (usbdev->descriptor.idProduct != ACX100_PRODUCT_ID_BOOTED)
++ goto end_nodev;
++ }
++
++/* Ok, so it's our device and it has already booted */
++
++ /* Allocate memory for a network device */
++
++ ndev = alloc_netdev(sizeof(*adev), "wlan%d", dummy_netdev_init);
++ /* (NB: memsets to 0 entire area) */
++ if (!ndev) {
++ msg = "acx: no memory for netdev\n";
++ goto end_nomem;
++ }
++
++ /* Register the callbacks for the network device functions */
++
++ ether_setup(ndev);
++ ndev->open = &acxusb_e_open;
++ ndev->stop = &acxusb_e_close;
++ ndev->hard_start_xmit = (void *)&acx_i_start_xmit;
++ ndev->get_stats = (void *)&acx_e_get_stats;
++#if IW_HANDLER_VERSION <= 5
++ ndev->get_wireless_stats = (void *)&acx_e_get_wireless_stats;
++#endif
++ ndev->wireless_handlers = (struct iw_handler_def *)&acx_ioctl_handler_def;
++ ndev->set_multicast_list = (void *)&acxusb_i_set_rx_mode;
++#ifdef HAVE_TX_TIMEOUT
++ ndev->tx_timeout = &acxusb_i_tx_timeout;
++ ndev->watchdog_timeo = 4 * HZ;
++#endif
++ ndev->change_mtu = &acx_e_change_mtu;
++ SET_MODULE_OWNER(ndev);
++
++ /* Setup private driver context */
++
++ adev = ndev2adev(ndev);
++ adev->ndev = ndev;
++
++ adev->dev_type = DEVTYPE_USB;
++ adev->radio_type = radio_type;
++ if (is_tnetw1450) {
++ /* well, actually it's a TNETW1450, but since it
++ * seems to be sufficiently similar to TNETW1130,
++ * I don't want to change large amounts of code now */
++ adev->chip_type = CHIPTYPE_ACX111;
++ } else {
++ adev->chip_type = CHIPTYPE_ACX100;
++ }
++
++ adev->usbdev = usbdev;
++ spin_lock_init(&adev->lock); /* initial state: unlocked */
++ sema_init(&adev->sem, 1); /* initial state: 1 (upped) */
++
++ /* Check that this is really the hardware we know about.
++ ** If not sure, at least notify the user that he
++ ** may be in trouble...
++ */
++ numconfigs = (int)usbdev->descriptor.bNumConfigurations;
++ if (numconfigs != 1)
++ printk("acx: number of configurations is %d, "
++ "this driver only knows how to handle 1, "
++ "be prepared for surprises\n", numconfigs);
++
++ config = &usbdev->config->desc;
++ numfaces = config->bNumInterfaces;
++ if (numfaces != 1)
++ printk("acx: number of interfaces is %d, "
++ "this driver only knows how to handle 1, "
++ "be prepared for surprises\n", numfaces);
++
++ ifdesc = &intf->altsetting->desc;
++ numep = ifdesc->bNumEndpoints;
++ log(L_DEBUG, "# of endpoints: %d\n", numep);
++
++ if (is_tnetw1450) {
++ adev->bulkoutep = 1;
++ adev->bulkinep = 2;
++ } else {
++ /* obtain information about the endpoint
++ ** addresses, begin with some default values
++ */
++ adev->bulkoutep = 1;
++ adev->bulkinep = 1;
++ for (i = 0; i < numep; i++) {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
++ ep = usbdev->ep_in[i];
++ if (!ep)
++ continue;
++ epdesc = &ep->desc;
++#else
++ epdesc = usb_epnum_to_ep_desc(usbdev, i);
++ if (!epdesc)
++ continue;
++#endif
++ if (epdesc->bmAttributes & USB_ENDPOINT_XFER_BULK) {
++ if (epdesc->bEndpointAddress & 0x80)
++ adev->bulkinep = epdesc->bEndpointAddress & 0xF;
++ else
++ adev->bulkoutep = epdesc->bEndpointAddress & 0xF;
++ }
++ }
++ }
++ log(L_DEBUG, "bulkout ep: 0x%X\n", adev->bulkoutep);
++ log(L_DEBUG, "bulkin ep: 0x%X\n", adev->bulkinep);
++
++ /* already done by memset: adev->rxtruncsize = 0; */
++ log(L_DEBUG, "TXBUFSIZE=%d RXBUFSIZE=%d\n",
++ (int) TXBUFSIZE, (int) RXBUFSIZE);
++
++ /* Allocate the RX/TX containers. */
++ adev->usb_tx = kmalloc(sizeof(usb_tx_t) * ACX_TX_URB_CNT, GFP_KERNEL);
++ if (!adev->usb_tx) {
++ msg = "acx: no memory for tx container";
++ goto end_nomem;
++ }
++ adev->usb_rx = kmalloc(sizeof(usb_rx_t) * ACX_RX_URB_CNT, GFP_KERNEL);
++ if (!adev->usb_rx) {
++ msg = "acx: no memory for rx container";
++ goto end_nomem;
++ }
++
++ /* Setup URBs for bulk-in/out messages */
++ for (i = 0; i < ACX_RX_URB_CNT; i++) {
++ adev->usb_rx[i].urb = usb_alloc_urb(0, GFP_KERNEL);
++ if (!adev->usb_rx[i].urb) {
++ msg = "acx: no memory for input URB\n";
++ goto end_nomem;
++ }
++ adev->usb_rx[i].urb->status = 0;
++ adev->usb_rx[i].adev = adev;
++ adev->usb_rx[i].busy = 0;
++ }
++
++ for (i = 0; i< ACX_TX_URB_CNT; i++) {
++ adev->usb_tx[i].urb = usb_alloc_urb(0, GFP_KERNEL);
++ if (!adev->usb_tx[i].urb) {
++ msg = "acx: no memory for output URB\n";
++ goto end_nomem;
++ }
++ adev->usb_tx[i].urb->status = 0;
++ adev->usb_tx[i].adev = adev;
++ adev->usb_tx[i].busy = 0;
++ }
++ adev->tx_free = ACX_TX_URB_CNT;
++
++ usb_set_intfdata(intf, adev);
++ SET_NETDEV_DEV(ndev, &intf->dev);
++
++ /* TODO: move all of fw cmds to open()? But then we won't know our MAC addr
++ until ifup (it's available via reading ACX1xx_IE_DOT11_STATION_ID)... */
++
++ /* put acx out of sleep mode and initialize it */
++ acx_s_issue_cmd(adev, ACX1xx_CMD_WAKE, NULL, 0);
++
++ result = acx_s_init_mac(adev);
++ if (result)
++ goto end;
++
++ /* TODO: see similar code in pci.c */
++ acxusb_s_read_eeprom_version(adev);
++ acxusb_s_fill_configoption(adev);
++ acx_s_set_defaults(adev);
++ acx_s_get_firmware_version(adev);
++ acx_display_hardware_details(adev);
++
++ /* Register the network device */
++ log(L_INIT, "registering network device\n");
++ result = register_netdev(ndev);
++ if (result) {
++ msg = "acx: failed to register USB network device "
++ "(error %d)\n";
++ goto end_nomem;
++ }
++
++ acx_proc_register_entries(ndev);
++
++ acx_stop_queue(ndev, "on probe");
++ acx_carrier_off(ndev, "on probe");
++
++ printk("acx: USB module " ACX_RELEASE " loaded successfully\n");
++
++#if CMD_DISCOVERY
++ great_inquisitor(adev);
++#endif
++
++ /* Everything went OK, we are happy now */
++ result = OK;
++ goto end;
++
++end_nomem:
++ printk(msg, result);
++
++ if (ndev) {
++ if (adev->usb_rx) {
++ for (i = 0; i < ACX_RX_URB_CNT; i++)
++ usb_free_urb(adev->usb_rx[i].urb);
++ kfree(adev->usb_rx);
++ }
++ if (adev->usb_tx) {
++ for (i = 0; i < ACX_TX_URB_CNT; i++)
++ usb_free_urb(adev->usb_tx[i].urb);
++ kfree(adev->usb_tx);
++ }
++ free_netdev(ndev);
++ }
++
++ result = -ENOMEM;
++ goto end;
++
++end_nodev:
++ /* no device we could handle, return error. */
++ result = -EIO;
++
++end:
++ FN_EXIT1(result);
++ return result;
++}
++
++
++/***********************************************************************
++** acxusb_e_disconnect()
++**
++** This function is invoked whenever the user pulls the plug from the USB
++** device or the module is removed from the kernel. In these cases, the
++** network devices have to be taken down and all allocated memory has
++** to be freed.
++*/
++static void
++acxusb_e_disconnect(struct usb_interface *intf)
++{
++ acx_device_t *adev = usb_get_intfdata(intf);
++ unsigned long flags;
++ int i;
++
++ FN_ENTER;
++
++ /* No WLAN device... no sense */
++ if (!adev)
++ goto end;
++
++ /* Unregister network device
++ *
++ * If the interface is up, unregister_netdev() will take
++ * care of calling our close() function, which takes
++ * care of unlinking the urbs, sending the device to
++ * sleep, etc...
++ * This can't be called with sem or lock held because
++ * _close() will try to grab it as well if it's called,
++ * deadlocking the machine.
++ */
++ unregister_netdev(adev->ndev);
++
++ acx_sem_lock(adev);
++ acx_lock(adev, flags);
++ /* This device exists no more */
++ usb_set_intfdata(intf, NULL);
++ acx_proc_unregister_entries(adev->ndev);
++
++ /*
++ * Here we only free them. _close() took care of
++ * unlinking them.
++ */
++ for (i = 0; i < ACX_RX_URB_CNT; ++i) {
++ usb_free_urb(adev->usb_rx[i].urb);
++ }
++ for (i = 0; i< ACX_TX_URB_CNT; ++i) {
++ usb_free_urb(adev->usb_tx[i].urb);
++ }
++
++ /* Freeing containers */
++ kfree(adev->usb_rx);
++ kfree(adev->usb_tx);
++
++ acx_unlock(adev, flags);
++ acx_sem_unlock(adev);
++
++ free_netdev(adev->ndev);
++end:
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxusb_e_open()
++** This function is called when the user sets up the network interface.
++** It initializes a management timer, sets up the USB card and starts
++** the network tx queue and USB receive.
++*/
++static int
++acxusb_e_open(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++ int i;
++
++ FN_ENTER;
++
++ acx_sem_lock(adev);
++
++ /* put the ACX100 out of sleep mode */
++ acx_s_issue_cmd(adev, ACX1xx_CMD_WAKE, NULL, 0);
++
++ acx_init_task_scheduler(adev);
++
++ init_timer(&adev->mgmt_timer);
++ adev->mgmt_timer.function = acx_i_timer;
++ adev->mgmt_timer.data = (unsigned long)adev;
++
++ /* acx_s_start needs it */
++ SET_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
++ acx_s_start(adev);
++
++ /* don't acx_start_queue() here, we need to associate first */
++
++ acx_lock(adev, flags);
++ for (i = 0; i < ACX_RX_URB_CNT; i++) {
++ adev->usb_rx[i].urb->status = 0;
++ }
++
++ acxusb_l_poll_rx(adev, &adev->usb_rx[0]);
++
++ acx_unlock(adev, flags);
++
++ acx_sem_unlock(adev);
++
++ FN_EXIT0;
++ return 0;
++}
++
++
++/***********************************************************************
++** acxusb_e_close()
++**
++** This function stops the network functionality of the interface (invoked
++** when the user calls ifconfig <wlan> down). The tx queue is halted and
++** the device is marked as down. In case there were any pending USB bulk
++** transfers, these are unlinked (asynchronously). The module in-use count
++** is also decreased in this function.
++*/
++static int
++acxusb_e_close(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++ int i;
++
++ FN_ENTER;
++
++#ifdef WE_STILL_DONT_CARE_ABOUT_IT
++ /* Transmit a disassociate frame */
++ lock
++ acx_l_transmit_disassoc(adev, &client);
++ unlock
++#endif
++
++ acx_sem_lock(adev);
++
++ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
++
++/* Code below is remarkably similar to acxpci_s_down(). Maybe we can merge them? */
++
++ /* Make sure we don't get any more rx requests */
++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_RX, NULL, 0);
++ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0);
++
++ /*
++ * We must do FLUSH *without* holding sem to avoid a deadlock.
++ * See pci.c:acxpci_s_down() for deails.
++ */
++ acx_sem_unlock(adev);
++ FLUSH_SCHEDULED_WORK();
++ acx_sem_lock(adev);
++
++ /* Power down the device */
++ acx_s_issue_cmd(adev, ACX1xx_CMD_SLEEP, NULL, 0);
++
++ /* Stop the transmit queue, mark the device as DOWN */
++ acx_lock(adev, flags);
++ acx_stop_queue(ndev, "on ifdown");
++ acx_set_status(adev, ACX_STATUS_0_STOPPED);
++ /* stop pending rx/tx urb transfers */
++ for (i = 0; i < ACX_TX_URB_CNT; i++) {
++ acxusb_unlink_urb(adev->usb_tx[i].urb);
++ adev->usb_tx[i].busy = 0;
++ }
++ for (i = 0; i < ACX_RX_URB_CNT; i++) {
++ acxusb_unlink_urb(adev->usb_rx[i].urb);
++ adev->usb_rx[i].busy = 0;
++ }
++ adev->tx_free = ACX_TX_URB_CNT;
++ acx_unlock(adev, flags);
++
++ /* Must do this outside of lock */
++ del_timer_sync(&adev->mgmt_timer);
++
++ acx_sem_unlock(adev);
++
++ FN_EXIT0;
++ return 0;
++}
++
++
++/***********************************************************************
++** acxusb_l_poll_rx
++** This function (re)initiates a bulk-in USB transfer on a given urb
++*/
++static void
++acxusb_l_poll_rx(acx_device_t *adev, usb_rx_t* rx)
++{
++ struct usb_device *usbdev;
++ struct urb *rxurb;
++ int errcode, rxnum;
++ unsigned int inpipe;
++
++ FN_ENTER;
++
++ rxurb = rx->urb;
++ usbdev = adev->usbdev;
++
++ rxnum = rx - adev->usb_rx;
++
++ inpipe = usb_rcvbulkpipe(usbdev, adev->bulkinep);
++ if (unlikely(rxurb->status == -EINPROGRESS)) {
++ printk(KERN_ERR "acx: error, rx triggered while rx urb in progress\n");
++ /* FIXME: this is nasty, receive is being cancelled by this code
++ * on the other hand, this should not happen anyway...
++ */
++ usb_unlink_urb(rxurb);
++ } else
++ if (unlikely(rxurb->status == -ECONNRESET)) {
++ log(L_USBRXTX, "acx_usb: _poll_rx: connection reset\n");
++ goto end;
++ }
++ rxurb->actual_length = 0;
++ usb_fill_bulk_urb(rxurb, usbdev, inpipe,
++ &rx->bulkin, /* dataptr */
++ RXBUFSIZE, /* size */
++ acxusb_i_complete_rx, /* handler */
++ rx /* handler param */
++ );
++ rxurb->transfer_flags = URB_ASYNC_UNLINK;
++
++ /* ATOMIC: we may be called from complete_rx() usb callback */
++ errcode = usb_submit_urb(rxurb, GFP_ATOMIC);
++ /* FIXME: evaluate the error code! */
++ log(L_USBRXTX, "SUBMIT RX (%d) inpipe=0x%X size=%d errcode=%d\n",
++ rxnum, inpipe, (int) RXBUFSIZE, errcode);
++end:
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxusb_i_complete_rx()
++** Inputs:
++** urb -> pointer to USB request block
++** regs -> pointer to register-buffer for syscalls (see asm/ptrace.h)
++**
++** This function is invoked by USB subsystem whenever a bulk receive
++** request returns.
++** The received data is then committed to the network stack and the next
++** USB receive is triggered.
++*/
++static void
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
++acxusb_i_complete_rx(struct urb *urb)
++#else
++acxusb_i_complete_rx(struct urb *urb, struct pt_regs *regs)
++#endif
++{
++ acx_device_t *adev;
++ rxbuffer_t *ptr;
++ rxbuffer_t *inbuf;
++ usb_rx_t *rx;
++ unsigned long flags;
++ int size, remsize, packetsize, rxnum;
++
++ FN_ENTER;
++
++ BUG_ON(!urb->context);
++
++ rx = (usb_rx_t *)urb->context;
++ adev = rx->adev;
++
++ acx_lock(adev, flags);
++
++ /*
++ * Happens on disconnect or close. Don't play with the urb.
++ * Don't resubmit it. It will get unlinked by close()
++ */
++ if (unlikely(!(adev->dev_state_mask & ACX_STATE_IFACE_UP))) {
++ log(L_USBRXTX, "rx: device is down, not doing anything\n");
++ goto end_unlock;
++ }
++
++ inbuf = &rx->bulkin;
++ size = urb->actual_length;
++ remsize = size;
++ rxnum = rx - adev->usb_rx;
++
++ log(L_USBRXTX, "RETURN RX (%d) status=%d size=%d\n",
++ rxnum, urb->status, size);
++
++ /* Send the URB that's waiting. */
++ log(L_USBRXTX, "rxnum=%d, sending=%d\n", rxnum, rxnum^1);
++ acxusb_l_poll_rx(adev, &adev->usb_rx[rxnum^1]);
++
++ if (unlikely(size > sizeof(rxbuffer_t)))
++ printk("acx_usb: rx too large: %d, please report\n", size);
++
++ /* check if the transfer was aborted */
++ switch (urb->status) {
++ case 0: /* No error */
++ break;
++ case -EOVERFLOW:
++ printk(KERN_ERR "acx: rx data overrun\n");
++ adev->rxtruncsize = 0; /* Not valid anymore. */
++ goto end_unlock;
++ case -ECONNRESET:
++ adev->rxtruncsize = 0;
++ goto end_unlock;
++ case -ESHUTDOWN: /* rmmod */
++ adev->rxtruncsize = 0;
++ goto end_unlock;
++ default:
++ adev->rxtruncsize = 0;
++ adev->stats.rx_errors++;
++ printk("acx: rx error (urb status=%d)\n", urb->status);
++ goto end_unlock;
++ }
++
++ if (unlikely(!size))
++ printk("acx: warning, encountered zerolength rx packet\n");
++
++ if (urb->transfer_buffer != inbuf)
++ goto end_unlock;
++
++ /* check if previous frame was truncated
++ ** FIXME: this code can only handle truncation
++ ** of consecutive packets!
++ */
++ ptr = inbuf;
++ if (adev->rxtruncsize) {
++ int tail_size;
++
++ ptr = &adev->rxtruncbuf;
++ packetsize = RXBUF_BYTES_USED(ptr);
++ if (acx_debug & L_USBRXTX) {
++ printk("handling truncated frame (truncsize=%d size=%d "
++ "packetsize(from trunc)=%d)\n",
++ adev->rxtruncsize, size, packetsize);
++ acx_dump_bytes(ptr, RXBUF_HDRSIZE);
++ acx_dump_bytes(inbuf, RXBUF_HDRSIZE);
++ }
++
++ /* bytes needed for rxtruncbuf completion: */
++ tail_size = packetsize - adev->rxtruncsize;
++
++ if (size < tail_size) {
++ /* there is not enough data to complete this packet,
++ ** simply append the stuff to the truncation buffer
++ */
++ memcpy(((char *)ptr) + adev->rxtruncsize, inbuf, size);
++ adev->rxtruncsize += size;
++ remsize = 0;
++ } else {
++ /* ok, this data completes the previously
++ ** truncated packet. copy it into a descriptor
++ ** and give it to the rest of the stack */
++
++ /* append tail to previously truncated part
++ ** NB: adev->rxtruncbuf (pointed to by ptr) can't
++ ** overflow because this is already checked before
++ ** truncation buffer was filled. See below,
++ ** "if (packetsize > sizeof(rxbuffer_t))..." code */
++ memcpy(((char *)ptr) + adev->rxtruncsize, inbuf, tail_size);
++
++ if (acx_debug & L_USBRXTX) {
++ printk("full trailing packet + 12 bytes:\n");
++ acx_dump_bytes(inbuf, tail_size + RXBUF_HDRSIZE);
++ }
++ acx_l_process_rxbuf(adev, ptr);
++ adev->rxtruncsize = 0;
++ ptr = (rxbuffer_t *) (((char *)inbuf) + tail_size);
++ remsize -= tail_size;
++ }
++ log(L_USBRXTX, "post-merge size=%d remsize=%d\n",
++ size, remsize);
++ }
++
++ /* size = USB data block size
++ ** remsize = unprocessed USB bytes left
++ ** ptr = current pos in USB data block
++ */
++ while (remsize) {
++ if (remsize < RXBUF_HDRSIZE) {
++ printk("acx: truncated rx header (%d bytes)!\n",
++ remsize);
++ if (ACX_DEBUG)
++ acx_dump_bytes(ptr, remsize);
++ break;
++ }
++
++ packetsize = RXBUF_BYTES_USED(ptr);
++ log(L_USBRXTX, "packet with packetsize=%d\n", packetsize);
++
++ if (RXBUF_IS_TXSTAT(ptr)) {
++ /* do rate handling */
++ usb_txstatus_t *stat = (void*)ptr;
++ u16 client_no = (u16)stat->hostdata;
++
++ log(L_USBRXTX, "tx: stat: mac_cnt_rcvd:%04X "
++ "queue_index:%02X mac_status:%02X hostdata:%08X "
++ "rate:%u ack_failures:%02X rts_failures:%02X "
++ "rts_ok:%02X\n",
++ stat->mac_cnt_rcvd,
++ stat->queue_index, stat->mac_status, stat->hostdata,
++ stat->rate, stat->ack_failures, stat->rts_failures,
++ stat->rts_ok);
++
++ if (adev->rate_auto && client_no < VEC_SIZE(adev->sta_list)) {
++ client_t *clt = &adev->sta_list[client_no];
++ u16 cur = stat->hostdata >> 16;
++
++ if (clt && clt->rate_cur == cur) {
++ acx_l_handle_txrate_auto(adev, clt,
++ cur, /* intended rate */
++ stat->rate, 0, /* actually used rate */
++ stat->mac_status, /* error? */
++ ACX_TX_URB_CNT - adev->tx_free);
++ }
++ }
++ goto next;
++ }
++
++ if (packetsize > sizeof(rxbuffer_t)) {
++ printk("acx: packet exceeds max wlan "
++ "frame size (%d > %d). size=%d\n",
++ packetsize, (int) sizeof(rxbuffer_t), size);
++ if (ACX_DEBUG)
++ acx_dump_bytes(ptr, 16);
++ /* FIXME: put some real error-handling in here! */
++ break;
++ }
++
++ if (packetsize > remsize) {
++ /* frame truncation handling */
++ if (acx_debug & L_USBRXTX) {
++ printk("need to truncate packet, "
++ "packetsize=%d remsize=%d "
++ "size=%d bytes:",
++ packetsize, remsize, size);
++ acx_dump_bytes(ptr, RXBUF_HDRSIZE);
++ }
++ memcpy(&adev->rxtruncbuf, ptr, remsize);
++ adev->rxtruncsize = remsize;
++ break;
++ }
++
++ /* packetsize <= remsize */
++ /* now handle the received data */
++ acx_l_process_rxbuf(adev, ptr);
++next:
++ ptr = (rxbuffer_t *)(((char *)ptr) + packetsize);
++ remsize -= packetsize;
++ if ((acx_debug & L_USBRXTX) && remsize) {
++ printk("more than one packet in buffer, "
++ "second packet hdr:");
++ acx_dump_bytes(ptr, RXBUF_HDRSIZE);
++ }
++ }
++
++end_unlock:
++ acx_unlock(adev, flags);
++/* end: */
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++** acxusb_i_complete_tx()
++** Inputs:
++** urb -> pointer to USB request block
++** regs -> pointer to register-buffer for syscalls (see asm/ptrace.h)
++**
++** This function is invoked upon termination of a USB transfer.
++*/
++static void
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
++acxusb_i_complete_tx(struct urb *urb)
++#else
++acxusb_i_complete_tx(struct urb *urb, struct pt_regs *regs)
++#endif
++{
++ acx_device_t *adev;
++ usb_tx_t *tx;
++ unsigned long flags;
++ int txnum;
++
++ FN_ENTER;
++
++ BUG_ON(!urb->context);
++
++ tx = (usb_tx_t *)urb->context;
++ adev = tx->adev;
++
++ txnum = tx - adev->usb_tx;
++
++ acx_lock(adev, flags);
++
++ /*
++ * If the iface isn't up, we don't have any right
++ * to play with them. The urb may get unlinked.
++ */
++ if (unlikely(!(adev->dev_state_mask & ACX_STATE_IFACE_UP))) {
++ log(L_USBRXTX, "tx: device is down, not doing anything\n");
++ goto end_unlock;
++ }
++
++ log(L_USBRXTX, "RETURN TX (%d): status=%d size=%d\n",
++ txnum, urb->status, urb->actual_length);
++
++ /* handle USB transfer errors */
++ switch (urb->status) {
++ case 0: /* No error */
++ break;
++ case -ESHUTDOWN:
++ goto end_unlock;
++ break;
++ case -ECONNRESET:
++ goto end_unlock;
++ break;
++ /* FIXME: real error-handling code here please */
++ default:
++ printk(KERN_ERR "acx: tx error, urb status=%d\n", urb->status);
++ /* FIXME: real error-handling code here please */
++ }
++
++ /* free the URB and check for more data */
++ tx->busy = 0;
++ adev->tx_free++;
++ if ((adev->tx_free >= TX_START_QUEUE)
++ && (adev->status == ACX_STATUS_4_ASSOCIATED)
++ && (acx_queue_stopped(adev->ndev))
++ ) {
++ log(L_BUF, "tx: wake queue (%u free txbufs)\n",
++ adev->tx_free);
++ acx_wake_queue(adev->ndev, NULL);
++ }
++
++end_unlock:
++ acx_unlock(adev, flags);
++/* end: */
++ FN_EXIT0;
++}
++
++
++/***************************************************************
++** acxusb_l_alloc_tx
++** Actually returns a usb_tx_t* ptr
++*/
++tx_t*
++acxusb_l_alloc_tx(acx_device_t *adev)
++{
++ usb_tx_t *tx;
++ unsigned head;
++
++ FN_ENTER;
++
++ head = adev->tx_head;
++ do {
++ head = (head + 1) % ACX_TX_URB_CNT;
++ if (!adev->usb_tx[head].busy) {
++ log(L_USBRXTX, "allocated tx %d\n", head);
++ tx = &adev->usb_tx[head];
++ tx->busy = 1;
++ adev->tx_free--;
++ /* Keep a few free descs between head and tail of tx ring.
++ ** It is not absolutely needed, just feels safer */
++ if (adev->tx_free < TX_STOP_QUEUE) {
++ log(L_BUF, "tx: stop queue "
++ "(%u free txbufs)\n", adev->tx_free);
++ acx_stop_queue(adev->ndev, NULL);
++ }
++ goto end;
++ }
++ } while (likely(head!=adev->tx_head));
++ tx = NULL;
++ printk_ratelimited("acx: tx buffers full\n");
++end:
++ adev->tx_head = head;
++ FN_EXIT0;
++ return (tx_t*)tx;
++}
++
++
++/***************************************************************
++** Used if alloc_tx()'ed buffer needs to be cancelled without doing tx
++*/
++void
++acxusb_l_dealloc_tx(tx_t *tx_opaque)
++{
++ usb_tx_t* tx = (usb_tx_t*)tx_opaque;
++ tx->busy = 0;
++}
++
++
++/***************************************************************
++*/
++void*
++acxusb_l_get_txbuf(acx_device_t *adev, tx_t* tx_opaque)
++{
++ usb_tx_t* tx = (usb_tx_t*)tx_opaque;
++ return &tx->bulkout.data;
++}
++
++
++/***************************************************************
++** acxusb_l_tx_data
++**
++** Can be called from IRQ (rx -> (AP bridging or mgmt response) -> tx).
++** Can be called from acx_i_start_xmit (data frames from net core).
++*/
++void
++acxusb_l_tx_data(acx_device_t *adev, tx_t* tx_opaque, int wlanpkt_len)
++{
++ struct usb_device *usbdev;
++ struct urb* txurb;
++ usb_tx_t* tx;
++ usb_txbuffer_t* txbuf;
++ client_t *clt;
++ wlan_hdr_t* whdr;
++ unsigned int outpipe;
++ int ucode, txnum;
++
++ FN_ENTER;
++
++ tx = ((usb_tx_t *)tx_opaque);
++ txurb = tx->urb;
++ txbuf = &tx->bulkout;
++ whdr = (wlan_hdr_t *)txbuf->data;
++ txnum = tx - adev->usb_tx;
++
++ log(L_DEBUG, "using buf#%d free=%d len=%d\n",
++ txnum, adev->tx_free, wlanpkt_len);
++
++ switch (adev->mode) {
++ case ACX_MODE_0_ADHOC:
++ case ACX_MODE_3_AP:
++ clt = acx_l_sta_list_get(adev, whdr->a1);
++ break;
++ case ACX_MODE_2_STA:
++ clt = adev->ap_client;
++ break;
++ default: /* ACX_MODE_OFF, ACX_MODE_MONITOR */
++ clt = NULL;
++ break;
++ }
++
++ if (unlikely(clt && !clt->rate_cur)) {
++ printk("acx: driver bug! bad ratemask\n");
++ goto end;
++ }
++
++ /* fill the USB transfer header */
++ txbuf->desc = cpu_to_le16(USB_TXBUF_TXDESC);
++ txbuf->mpdu_len = cpu_to_le16(wlanpkt_len);
++ txbuf->queue_index = 1;
++ if (clt) {
++ txbuf->rate = clt->rate_100;
++ txbuf->hostdata = (clt - adev->sta_list) | (clt->rate_cur << 16);
++ } else {
++ txbuf->rate = adev->rate_bcast100;
++ txbuf->hostdata = ((u16)-1) | (adev->rate_bcast << 16);
++ }
++ txbuf->ctrl1 = DESC_CTL_FIRSTFRAG;
++ if (1 == adev->preamble_cur)
++ SET_BIT(txbuf->ctrl1, DESC_CTL_SHORT_PREAMBLE);
++ txbuf->ctrl2 = 0;
++ txbuf->data_len = cpu_to_le16(wlanpkt_len);
++
++ if (unlikely(acx_debug & L_DATA)) {
++ printk("dump of bulk out urb:\n");
++ acx_dump_bytes(txbuf, wlanpkt_len + USB_TXBUF_HDRSIZE);
++ }
++
++ if (unlikely(txurb->status == -EINPROGRESS)) {
++ printk("acx: trying to submit tx urb while already in progress\n");
++ }
++
++ /* now schedule the USB transfer */
++ usbdev = adev->usbdev;
++ outpipe = usb_sndbulkpipe(usbdev, adev->bulkoutep);
++
++ usb_fill_bulk_urb(txurb, usbdev, outpipe,
++ txbuf, /* dataptr */
++ wlanpkt_len + USB_TXBUF_HDRSIZE, /* size */
++ acxusb_i_complete_tx, /* handler */
++ tx /* handler param */
++ );
++
++ txurb->transfer_flags = URB_ASYNC_UNLINK|URB_ZERO_PACKET;
++ ucode = usb_submit_urb(txurb, GFP_ATOMIC);
++ log(L_USBRXTX, "SUBMIT TX (%d): outpipe=0x%X buf=%p txsize=%d "
++ "rate=%u errcode=%d\n", txnum, outpipe, txbuf,
++ wlanpkt_len + USB_TXBUF_HDRSIZE, txbuf->rate, ucode);
++
++ if (unlikely(ucode)) {
++ printk(KERN_ERR "acx: submit_urb() error=%d txsize=%d\n",
++ ucode, wlanpkt_len + USB_TXBUF_HDRSIZE);
++
++ /* on error, just mark the frame as done and update
++ ** the statistics
++ */
++ adev->stats.tx_errors++;
++ tx->busy = 0;
++ adev->tx_free++;
++ /* needed? if (adev->tx_free > TX_START_QUEUE) acx_wake_queue(...) */
++ }
++end:
++ FN_EXIT0;
++}
++
++
++/***********************************************************************
++*/
++static void
++acxusb_i_set_rx_mode(struct net_device *ndev)
++{
++}
++
++
++/***********************************************************************
++*/
++#ifdef HAVE_TX_TIMEOUT
++static void
++acxusb_i_tx_timeout(struct net_device *ndev)
++{
++ acx_device_t *adev = ndev2adev(ndev);
++ unsigned long flags;
++ int i;
++
++ FN_ENTER;
++
++ acx_lock(adev, flags);
++ /* unlink the URBs */
++ for (i = 0; i < ACX_TX_URB_CNT; i++) {
++ acxusb_unlink_urb(adev->usb_tx[i].urb);
++ adev->usb_tx[i].busy = 0;
++ }
++ adev->tx_free = ACX_TX_URB_CNT;
++ /* TODO: stats update */
++ acx_unlock(adev, flags);
++
++ FN_EXIT0;
++}
++#endif
++
++
++/***********************************************************************
++** init_module()
++**
++** This function is invoked upon loading of the kernel module.
++** It registers itself at the kernel's USB subsystem.
++**
++** Returns: Errorcode on failure, 0 on success
++*/
++int __init
++acxusb_e_init_module(void)
++{
++ log(L_INIT, "USB module " ACX_RELEASE " initialized, "
++ "probing for devices...\n");
++ return usb_register(&acxusb_driver);
++}
++
++
++
++/***********************************************************************
++** cleanup_module()
++**
++** This function is invoked as last step of the module unloading. It simply
++** deregisters this module at the kernel's USB subsystem.
++*/
++void __exit
++acxusb_e_cleanup_module()
++{
++ usb_deregister(&acxusb_driver);
++}
++
++
++/***********************************************************************
++** DEBUG STUFF
++*/
++#if ACX_DEBUG
++
++#ifdef UNUSED
++static void
++dump_device(struct usb_device *usbdev)
++{
++ int i;
++ struct usb_config_descriptor *cd;
++
++ printk("acx device dump:\n");
++ printk(" devnum: %d\n", usbdev->devnum);
++ printk(" speed: %d\n", usbdev->speed);
++ printk(" tt: 0x%X\n", (unsigned int)(usbdev->tt));
++ printk(" ttport: %d\n", (unsigned int)(usbdev->ttport));
++ printk(" toggle[0]: 0x%X toggle[1]: 0x%X\n", (unsigned int)(usbdev->toggle[0]), (unsigned int)(usbdev->toggle[1]));
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
++ /* This saw a change after 2.6.10 */
++ printk(" ep_in wMaxPacketSize: ");
++ for (i = 0; i < 16; ++i)
++ if (usbdev->ep_in[i] != NULL)
++ printk("%d:%d ", i, usbdev->ep_in[i]->desc.wMaxPacketSize);
++ printk("\n");
++ printk(" ep_out wMaxPacketSize: ");
++ for (i = 0; i < VEC_SIZE(usbdev->ep_out); ++i)
++ if (usbdev->ep_out[i] != NULL)
++ printk("%d:%d ", i, usbdev->ep_out[i]->desc.wMaxPacketSize);
++ printk("\n");
++#else
++ printk(" epmaxpacketin: ");
++ for (i = 0; i < 16; i++)
++ printk("%d ", usbdev->epmaxpacketin[i]);
++ printk("\n");
++ printk(" epmaxpacketout: ");
++ for (i = 0; i < 16; i++)
++ printk("%d ", usbdev->epmaxpacketout[i]);
++ printk("\n");
++#endif
++ printk(" parent: 0x%X\n", (unsigned int)usbdev->parent);
++ printk(" bus: 0x%X\n", (unsigned int)usbdev->bus);
++#ifdef NO_DATATYPE
++ printk(" configs: ");
++ for (i = 0; i < usbdev->descriptor.bNumConfigurations; i++)
++ printk("0x%X ", usbdev->config[i]);
++ printk("\n");
++#endif
++ printk(" actconfig: %p\n", usbdev->actconfig);
++ dump_device_descriptor(&usbdev->descriptor);
++
++ cd = &usbdev->config->desc;
++ dump_config_descriptor(cd);
++}
++
++
++/***********************************************************************
++*/
++static void
++dump_config_descriptor(struct usb_config_descriptor *cd)
++{
++ printk("Configuration Descriptor:\n");
++ if (!cd) {
++ printk("NULL\n");
++ return;
++ }
++ printk(" bLength: %d (0x%X)\n", cd->bLength, cd->bLength);
++ printk(" bDescriptorType: %d (0x%X)\n", cd->bDescriptorType, cd->bDescriptorType);
++ printk(" bNumInterfaces: %d (0x%X)\n", cd->bNumInterfaces, cd->bNumInterfaces);
++ printk(" bConfigurationValue: %d (0x%X)\n", cd->bConfigurationValue, cd->bConfigurationValue);
++ printk(" iConfiguration: %d (0x%X)\n", cd->iConfiguration, cd->iConfiguration);
++ printk(" bmAttributes: %d (0x%X)\n", cd->bmAttributes, cd->bmAttributes);
++ /* printk(" MaxPower: %d (0x%X)\n", cd->bMaxPower, cd->bMaxPower); */
++}
++
++
++static void
++dump_device_descriptor(struct usb_device_descriptor *dd)
++{
++ printk("Device Descriptor:\n");
++ if (!dd) {
++ printk("NULL\n");
++ return;
++ }
++ printk(" bLength: %d (0x%X)\n", dd->bLength, dd->bLength);
++ printk(" bDescriptortype: %d (0x%X)\n", dd->bDescriptorType, dd->bDescriptorType);
++ printk(" bcdUSB: %d (0x%X)\n", dd->bcdUSB, dd->bcdUSB);
++ printk(" bDeviceClass: %d (0x%X)\n", dd->bDeviceClass, dd->bDeviceClass);
++ printk(" bDeviceSubClass: %d (0x%X)\n", dd->bDeviceSubClass, dd->bDeviceSubClass);
++ printk(" bDeviceProtocol: %d (0x%X)\n", dd->bDeviceProtocol, dd->bDeviceProtocol);
++ printk(" bMaxPacketSize0: %d (0x%X)\n", dd->bMaxPacketSize0, dd->bMaxPacketSize0);
++ printk(" idVendor: %d (0x%X)\n", dd->idVendor, dd->idVendor);
++ printk(" idProduct: %d (0x%X)\n", dd->idProduct, dd->idProduct);
++ printk(" bcdDevice: %d (0x%X)\n", dd->bcdDevice, dd->bcdDevice);
++ printk(" iManufacturer: %d (0x%X)\n", dd->iManufacturer, dd->iManufacturer);
++ printk(" iProduct: %d (0x%X)\n", dd->iProduct, dd->iProduct);
++ printk(" iSerialNumber: %d (0x%X)\n", dd->iSerialNumber, dd->iSerialNumber);
++ printk(" bNumConfigurations: %d (0x%X)\n", dd->bNumConfigurations, dd->bNumConfigurations);
++}
++#endif /* UNUSED */
++
++#endif /* ACX_DEBUG */
+Index: linux-2.6.22/drivers/net/wireless/acx/wlan.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/wlan.c 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,424 @@
++/***********************************************************************
++** Copyright (C) 2003 ACX100 Open Source Project
++**
++** The contents of this file are subject to the Mozilla Public
++** License Version 1.1 (the "License"); you may not use this file
++** except in compliance with the License. You may obtain a copy of
++** the License at http://www.mozilla.org/MPL/
++**
++** Software distributed under the License is distributed on an "AS
++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
++** implied. See the License for the specific language governing
++** rights and limitations under the License.
++**
++** Alternatively, the contents of this file may be used under the
++** terms of the GNU Public License version 2 (the "GPL"), in which
++** case the provisions of the GPL are applicable instead of the
++** above. If you wish to allow the use of your version of this file
++** only under the terms of the GPL and not to allow others to use
++** your version of this file under the MPL, indicate your decision
++** by deleting the provisions above and replace them with the notice
++** and other provisions required by the GPL. If you do not delete
++** the provisions above, a recipient may use your version of this
++** file under either the MPL or the GPL.
++** ---------------------------------------------------------------------
++** Inquiries regarding the ACX100 Open Source Project can be
++** made directly to:
++**
++** acx100-users@lists.sf.net
++** http://acx100.sf.net
++** ---------------------------------------------------------------------
++*/
++
++/***********************************************************************
++** This code is based on elements which are
++** Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
++** info@linux-wlan.com
++** http://www.linux-wlan.com
++*/
++
++#include <linux/version.h>
++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
++#include <linux/config.h>
++#endif
++#include <linux/types.h>
++#include <linux/if_arp.h>
++#include <linux/wireless.h>
++#include <net/iw_handler.h>
++
++#include "acx.h"
++
++
++/***********************************************************************
++*/
++#define LOG_BAD_EID(hdr,len,ie_ptr) acx_log_bad_eid(hdr, len, ((wlan_ie_t*)ie_ptr))
++
++#define IE_EID(ie_ptr) (((wlan_ie_t*)(ie_ptr))->eid)
++#define IE_LEN(ie_ptr) (((wlan_ie_t*)(ie_ptr))->len)
++#define OFFSET(hdr,off) (WLAN_HDR_A3_DATAP(hdr) + (off))
++
++
++/***********************************************************************
++** wlan_mgmt_decode_XXX
++**
++** Given a complete frame in f->hdr, sets the pointers in f to
++** the areas that correspond to the parts of the frame.
++**
++** Assumptions:
++** 1) f->len and f->hdr are already set
++** 2) f->len is the length of the MAC header + data, the FCS
++** is NOT included
++** 3) all members except len and hdr are zero
++** Arguments:
++** f frame structure
++**
++** Returns:
++** nothing
++**
++** Side effects:
++** frame structure members are pointing at their
++** respective portions of the frame buffer.
++*/
++void
++wlan_mgmt_decode_beacon(wlan_fr_beacon_t * f)
++{
++ u8 *ie_ptr;
++ u8 *end = (u8*)f->hdr + f->len;
++
++ f->type = WLAN_FSTYPE_BEACON;
++
++ /*-- Fixed Fields ----*/
++ f->ts = (u64 *) OFFSET(f->hdr, WLAN_BEACON_OFF_TS);
++ f->bcn_int = (u16 *) OFFSET(f->hdr, WLAN_BEACON_OFF_BCN_INT);
++ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_BEACON_OFF_CAPINFO);
++
++ /*-- Information elements */
++ ie_ptr = OFFSET(f->hdr, WLAN_BEACON_OFF_SSID);
++ while (ie_ptr < end) {
++ switch (IE_EID(ie_ptr)) {
++ case WLAN_EID_SSID:
++ f->ssid = (wlan_ie_ssid_t *) ie_ptr;
++ break;
++ case WLAN_EID_SUPP_RATES:
++ f->supp_rates = (wlan_ie_supp_rates_t *) ie_ptr;
++ break;
++ case WLAN_EID_EXT_RATES:
++ f->ext_rates = (wlan_ie_supp_rates_t *) ie_ptr;
++ break;
++ case WLAN_EID_FH_PARMS:
++ f->fh_parms = (wlan_ie_fh_parms_t *) ie_ptr;
++ break;
++ case WLAN_EID_DS_PARMS:
++ f->ds_parms = (wlan_ie_ds_parms_t *) ie_ptr;
++ break;
++ case WLAN_EID_CF_PARMS:
++ f->cf_parms = (wlan_ie_cf_parms_t *) ie_ptr;
++ break;
++ case WLAN_EID_IBSS_PARMS:
++ f->ibss_parms = (wlan_ie_ibss_parms_t *) ie_ptr;
++ break;
++ case WLAN_EID_TIM:
++ f->tim = (wlan_ie_tim_t *) ie_ptr;
++ break;
++ case WLAN_EID_ERP_INFO:
++ f->erp = (wlan_ie_erp_t *) ie_ptr;
++ break;
++
++ case WLAN_EID_COUNTRY:
++ /* was seen: 07 06 47 42 20 01 0D 14 */
++ case WLAN_EID_PWR_CONSTRAINT:
++ /* was seen by Ashwin Mansinghka <ashwin_man@yahoo.com> from
++ Atheros-based PCI card in AP mode using madwifi drivers: */
++ /* 20 01 00 */
++ case WLAN_EID_NONERP:
++ /* was seen from WRT54GS with OpenWrt: 2F 01 07 */
++ case WLAN_EID_UNKNOWN128:
++ /* was seen by Jacek Jablonski <conexion2000@gmail.com> from Orinoco AP */
++ /* 80 06 00 60 1D 2C 3B 00 */
++ case WLAN_EID_UNKNOWN133:
++ /* was seen by David Bronaugh <dbronaugh@linuxboxen.org> from ???? */
++ /* 85 1E 00 00 84 12 07 00 FF 00 11 00 61 70 63 31 */
++ /* 63 73 72 30 34 32 00 00 00 00 00 00 00 00 00 25 */
++ case WLAN_EID_UNKNOWN223:
++ /* was seen by Carlos Martin <carlosmn@gmail.com> from ???? */
++ /* DF 20 01 1E 04 00 00 00 06 63 09 02 FF 0F 30 30 */
++ /* 30 42 36 42 33 34 30 39 46 31 00 00 00 00 00 00 00 00 */
++ case WLAN_EID_GENERIC:
++ /* WPA: hostap code:
++ if (pos[1] >= 4 &&
++ pos[2] == 0x00 && pos[3] == 0x50 &&
++ pos[4] == 0xf2 && pos[5] == 1) {
++ wpa = pos;
++ wpa_len = pos[1] + 2;
++ }
++ TI x4 mode: seen DD 04 08 00 28 00
++ (08 00 28 is TI's OUI)
++ last byte is probably 0/1 - disabled/enabled
++ */
++ case WLAN_EID_RSN:
++ /* hostap does something with it:
++ rsn = pos;
++ rsn_len = pos[1] + 2;
++ */
++ break;
++
++ default:
++ LOG_BAD_EID(f->hdr, f->len, ie_ptr);
++ break;
++ }
++ ie_ptr = ie_ptr + 2 + IE_LEN(ie_ptr);
++ }
++}
++
++
++#ifdef UNUSED
++void wlan_mgmt_decode_ibssatim(wlan_fr_ibssatim_t * f)
++{
++ f->type = WLAN_FSTYPE_ATIM;
++ /*-- Fixed Fields ----*/
++ /*-- Information elements */
++}
++#endif /* UNUSED */
++
++void
++wlan_mgmt_decode_disassoc(wlan_fr_disassoc_t * f)
++{
++ f->type = WLAN_FSTYPE_DISASSOC;
++
++ /*-- Fixed Fields ----*/
++ f->reason = (u16 *) OFFSET(f->hdr, WLAN_DISASSOC_OFF_REASON);
++
++ /*-- Information elements */
++}
++
++
++void
++wlan_mgmt_decode_assocreq(wlan_fr_assocreq_t * f)
++{
++ u8 *ie_ptr;
++ u8 *end = (u8*)f->hdr + f->len;
++
++
++ f->type = WLAN_FSTYPE_ASSOCREQ;
++
++ /*-- Fixed Fields ----*/
++ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_ASSOCREQ_OFF_CAP_INFO);
++ f->listen_int = (u16 *) OFFSET(f->hdr, WLAN_ASSOCREQ_OFF_LISTEN_INT);
++
++ /*-- Information elements */
++ ie_ptr = OFFSET(f->hdr, WLAN_ASSOCREQ_OFF_SSID);
++ while (ie_ptr < end) {
++ switch (IE_EID(ie_ptr)) {
++ case WLAN_EID_SSID:
++ f->ssid = (wlan_ie_ssid_t *) ie_ptr;
++ break;
++ case WLAN_EID_SUPP_RATES:
++ f->supp_rates = (wlan_ie_supp_rates_t *) ie_ptr;
++ break;
++ case WLAN_EID_EXT_RATES:
++ f->ext_rates = (wlan_ie_supp_rates_t *) ie_ptr;
++ break;
++ default:
++ LOG_BAD_EID(f->hdr, f->len, ie_ptr);
++ break;
++ }
++ ie_ptr = ie_ptr + 2 + IE_LEN(ie_ptr);
++ }
++}
++
++
++void
++wlan_mgmt_decode_assocresp(wlan_fr_assocresp_t * f)
++{
++ f->type = WLAN_FSTYPE_ASSOCRESP;
++
++ /*-- Fixed Fields ----*/
++ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_ASSOCRESP_OFF_CAP_INFO);
++ f->status = (u16 *) OFFSET(f->hdr, WLAN_ASSOCRESP_OFF_STATUS);
++ f->aid = (u16 *) OFFSET(f->hdr, WLAN_ASSOCRESP_OFF_AID);
++
++ /*-- Information elements */
++ f->supp_rates = (wlan_ie_supp_rates_t *)
++ OFFSET(f->hdr, WLAN_ASSOCRESP_OFF_SUPP_RATES);
++}
++
++
++#ifdef UNUSED
++void
++wlan_mgmt_decode_reassocreq(wlan_fr_reassocreq_t * f)
++{
++ u8 *ie_ptr;
++ u8 *end = (u8*)f->hdr + f->len;
++
++ f->type = WLAN_FSTYPE_REASSOCREQ;
++
++ /*-- Fixed Fields ----*/
++ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_REASSOCREQ_OFF_CAP_INFO);
++ f->listen_int = (u16 *) OFFSET(f->hdr, WLAN_REASSOCREQ_OFF_LISTEN_INT);
++ f->curr_ap = (u8 *) OFFSET(f->hdr, WLAN_REASSOCREQ_OFF_CURR_AP);
++
++ /*-- Information elements */
++ ie_ptr = OFFSET(f->hdr, WLAN_REASSOCREQ_OFF_SSID);
++ while (ie_ptr < end) {
++ switch (IE_EID(ie_ptr)) {
++ case WLAN_EID_SSID:
++ f->ssid = (wlan_ie_ssid_t *) ie_ptr;
++ break;
++ case WLAN_EID_SUPP_RATES:
++ f->supp_rates = (wlan_ie_supp_rates_t *) ie_ptr;
++ break;
++ case WLAN_EID_EXT_RATES:
++ f->ext_rates = (wlan_ie_supp_rates_t *) ie_ptr;
++ break;
++ default:
++ LOG_BAD_EID(f->hdr, f->len, ie_ptr);
++ break;
++ }
++ ie_ptr = ie_ptr + 2 + IE_LEN(ie_ptr);
++ }
++}
++
++
++void
++wlan_mgmt_decode_reassocresp(wlan_fr_reassocresp_t * f)
++{
++ f->type = WLAN_FSTYPE_REASSOCRESP;
++
++ /*-- Fixed Fields ----*/
++ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_REASSOCRESP_OFF_CAP_INFO);
++ f->status = (u16 *) OFFSET(f->hdr, WLAN_REASSOCRESP_OFF_STATUS);
++ f->aid = (u16 *) OFFSET(f->hdr, WLAN_REASSOCRESP_OFF_AID);
++
++ /*-- Information elements */
++ f->supp_rates = (wlan_ie_supp_rates_t *)
++ OFFSET(f->hdr, WLAN_REASSOCRESP_OFF_SUPP_RATES);
++}
++
++
++void
++wlan_mgmt_decode_probereq(wlan_fr_probereq_t * f)
++{
++ u8 *ie_ptr;
++ u8 *end = (u8*)f->hdr + f->len;
++
++ f->type = WLAN_FSTYPE_PROBEREQ;
++
++ /*-- Fixed Fields ----*/
++
++ /*-- Information elements */
++ ie_ptr = OFFSET(f->hdr, WLAN_PROBEREQ_OFF_SSID);
++ while (ie_ptr < end) {
++ switch (IE_EID(ie_ptr)) {
++ case WLAN_EID_SSID:
++ f->ssid = (wlan_ie_ssid_t *) ie_ptr;
++ break;
++ case WLAN_EID_SUPP_RATES:
++ f->supp_rates = (wlan_ie_supp_rates_t *) ie_ptr;
++ break;
++ case WLAN_EID_EXT_RATES:
++ f->ext_rates = (wlan_ie_supp_rates_t *) ie_ptr;
++ break;
++ default:
++ LOG_BAD_EID(f->hdr, f->len, ie_ptr);
++ break;
++ }
++ ie_ptr = ie_ptr + 2 + IE_LEN(ie_ptr);
++ }
++}
++#endif /* UNUSED */
++
++
++/* TODO: decoding of beacon and proberesp can be merged (similar structure) */
++void
++wlan_mgmt_decode_proberesp(wlan_fr_proberesp_t * f)
++{
++ u8 *ie_ptr;
++ u8 *end = (u8*)f->hdr + f->len;
++
++ f->type = WLAN_FSTYPE_PROBERESP;
++
++ /*-- Fixed Fields ----*/
++ f->ts = (u64 *) OFFSET(f->hdr, WLAN_PROBERESP_OFF_TS);
++ f->bcn_int = (u16 *) OFFSET(f->hdr, WLAN_PROBERESP_OFF_BCN_INT);
++ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_PROBERESP_OFF_CAP_INFO);
++
++ /*-- Information elements */
++ ie_ptr = OFFSET(f->hdr, WLAN_PROBERESP_OFF_SSID);
++ while (ie_ptr < end) {
++ switch (IE_EID(ie_ptr)) {
++ case WLAN_EID_SSID:
++ f->ssid = (wlan_ie_ssid_t *) ie_ptr;
++ break;
++ case WLAN_EID_SUPP_RATES:
++ f->supp_rates = (wlan_ie_supp_rates_t *) ie_ptr;
++ break;
++ case WLAN_EID_EXT_RATES:
++ f->ext_rates = (wlan_ie_supp_rates_t *) ie_ptr;
++ break;
++ case WLAN_EID_FH_PARMS:
++ f->fh_parms = (wlan_ie_fh_parms_t *) ie_ptr;
++ break;
++ case WLAN_EID_DS_PARMS:
++ f->ds_parms = (wlan_ie_ds_parms_t *) ie_ptr;
++ break;
++ case WLAN_EID_CF_PARMS:
++ f->cf_parms = (wlan_ie_cf_parms_t *) ie_ptr;
++ break;
++ case WLAN_EID_IBSS_PARMS:
++ f->ibss_parms = (wlan_ie_ibss_parms_t *) ie_ptr;
++ break;
++#ifdef DONT_DO_IT_ADD_REAL_HANDLING_INSTEAD
++ case WLAN_EID_COUNTRY:
++ break;
++ ...
++#endif
++#ifdef SENT_HERE_BY_OPENWRT
++ /* should those be trapped or handled?? */
++ case WLAN_EID_ERP_INFO:
++ break;
++ case WLAN_EID_NONERP:
++ break;
++ case WLAN_EID_GENERIC:
++ break;
++#endif
++ default:
++ LOG_BAD_EID(f->hdr, f->len, ie_ptr);
++ break;
++ }
++
++ ie_ptr = ie_ptr + 2 + IE_LEN(ie_ptr);
++ }
++}
++
++
++void
++wlan_mgmt_decode_authen(wlan_fr_authen_t * f)
++{
++ u8 *ie_ptr;
++ u8 *end = (u8*)f->hdr + f->len;
++
++ f->type = WLAN_FSTYPE_AUTHEN;
++
++ /*-- Fixed Fields ----*/
++ f->auth_alg = (u16 *) OFFSET(f->hdr, WLAN_AUTHEN_OFF_AUTH_ALG);
++ f->auth_seq = (u16 *) OFFSET(f->hdr, WLAN_AUTHEN_OFF_AUTH_SEQ);
++ f->status = (u16 *) OFFSET(f->hdr, WLAN_AUTHEN_OFF_STATUS);
++
++ /*-- Information elements */
++ ie_ptr = OFFSET(f->hdr, WLAN_AUTHEN_OFF_CHALLENGE);
++ if ((ie_ptr < end) && (IE_EID(ie_ptr) == WLAN_EID_CHALLENGE)) {
++ f->challenge = (wlan_ie_challenge_t *) ie_ptr;
++ }
++}
++
++
++void
++wlan_mgmt_decode_deauthen(wlan_fr_deauthen_t * f)
++{
++ f->type = WLAN_FSTYPE_DEAUTHEN;
++
++ /*-- Fixed Fields ----*/
++ f->reason = (u16 *) OFFSET(f->hdr, WLAN_DEAUTHEN_OFF_REASON);
++
++ /*-- Information elements */
++}
+Index: linux-2.6.22/drivers/net/wireless/acx/wlan_compat.h
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/wlan_compat.h 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,260 @@
++/***********************************************************************
++** Copyright (C) 2003 ACX100 Open Source Project
++**
++** The contents of this file are subject to the Mozilla Public
++** License Version 1.1 (the "License"); you may not use this file
++** except in compliance with the License. You may obtain a copy of
++** the License at http://www.mozilla.org/MPL/
++**
++** Software distributed under the License is distributed on an "AS
++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
++** implied. See the License for the specific language governing
++** rights and limitations under the License.
++**
++** Alternatively, the contents of this file may be used under the
++** terms of the GNU Public License version 2 (the "GPL"), in which
++** case the provisions of the GPL are applicable instead of the
++** above. If you wish to allow the use of your version of this file
++** only under the terms of the GPL and not to allow others to use
++** your version of this file under the MPL, indicate your decision
++** by deleting the provisions above and replace them with the notice
++** and other provisions required by the GPL. If you do not delete
++** the provisions above, a recipient may use your version of this
++** file under either the MPL or the GPL.
++** ---------------------------------------------------------------------
++** Inquiries regarding the ACX100 Open Source Project can be
++** made directly to:
++**
++** acx100-users@lists.sf.net
++** http://acx100.sf.net
++** ---------------------------------------------------------------------
++*/
++
++/***********************************************************************
++** This code is based on elements which are
++** Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
++** info@linux-wlan.com
++** http://www.linux-wlan.com
++*/
++
++/*=============================================================*/
++/*------ Establish Platform Identity --------------------------*/
++/*=============================================================*/
++/* Key macros: */
++/* WLAN_CPU_FAMILY */
++#define WLAN_Ix86 1
++#define WLAN_PPC 2
++#define WLAN_Ix96 3
++#define WLAN_ARM 4
++#define WLAN_ALPHA 5
++#define WLAN_MIPS 6
++#define WLAN_HPPA 7
++#define WLAN_SPARC 8
++#define WLAN_SH 9
++#define WLAN_x86_64 10
++/* WLAN_CPU_CORE */
++#define WLAN_I386CORE 1
++#define WLAN_PPCCORE 2
++#define WLAN_I296 3
++#define WLAN_ARMCORE 4
++#define WLAN_ALPHACORE 5
++#define WLAN_MIPSCORE 6
++#define WLAN_HPPACORE 7
++/* WLAN_CPU_PART */
++#define WLAN_I386PART 1
++#define WLAN_MPC860 2
++#define WLAN_MPC823 3
++#define WLAN_I296SA 4
++#define WLAN_PPCPART 5
++#define WLAN_ARMPART 6
++#define WLAN_ALPHAPART 7
++#define WLAN_MIPSPART 8
++#define WLAN_HPPAPART 9
++/* WLAN_SYSARCH */
++#define WLAN_PCAT 1
++#define WLAN_MBX 2
++#define WLAN_RPX 3
++#define WLAN_LWARCH 4
++#define WLAN_PMAC 5
++#define WLAN_SKIFF 6
++#define WLAN_BITSY 7
++#define WLAN_ALPHAARCH 7
++#define WLAN_MIPSARCH 9
++#define WLAN_HPPAARCH 10
++/* WLAN_HOSTIF (generally set on the command line, not detected) */
++#define WLAN_PCMCIA 1
++#define WLAN_ISA 2
++#define WLAN_PCI 3
++#define WLAN_USB 4
++#define WLAN_PLX 5
++
++/* Note: the PLX HOSTIF above refers to some vendors implementations for */
++/* PCI. It's a PLX chip that is a PCI to PCMCIA adapter, but it */
++/* isn't a real PCMCIA host interface adapter providing all the */
++/* card&socket services. */
++
++#ifdef __powerpc__
++#ifndef __ppc__
++#define __ppc__
++#endif
++#endif
++
++#if (defined(CONFIG_PPC) || defined(CONFIG_8xx))
++#ifndef __ppc__
++#define __ppc__
++#endif
++#endif
++
++#if defined(__x86_64__)
++ #define WLAN_CPU_FAMILY WLAN_x86_64
++ #define WLAN_SYSARCH WLAN_PCAT
++#elif defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__)
++ #define WLAN_CPU_FAMILY WLAN_Ix86
++ #define WLAN_CPU_CORE WLAN_I386CORE
++ #define WLAN_CPU_PART WLAN_I386PART
++ #define WLAN_SYSARCH WLAN_PCAT
++#elif defined(__ppc__)
++ #define WLAN_CPU_FAMILY WLAN_PPC
++ #define WLAN_CPU_CORE WLAN_PPCCORE
++ #if defined(CONFIG_MBX)
++ #define WLAN_CPU_PART WLAN_MPC860
++ #define WLAN_SYSARCH WLAN_MBX
++ #elif defined(CONFIG_RPXLITE)
++ #define WLAN_CPU_PART WLAN_MPC823
++ #define WLAN_SYSARCH WLAN_RPX
++ #elif defined(CONFIG_RPXCLASSIC)
++ #define WLAN_CPU_PART WLAN_MPC860
++ #define WLAN_SYSARCH WLAN_RPX
++ #else
++ #define WLAN_CPU_PART WLAN_PPCPART
++ #define WLAN_SYSARCH WLAN_PMAC
++ #endif
++#elif defined(__arm__)
++ #define WLAN_CPU_FAMILY WLAN_ARM
++ #define WLAN_CPU_CORE WLAN_ARMCORE
++ #define WLAN_CPU_PART WLAN_ARM_PART
++ #define WLAN_SYSARCH WLAN_SKIFF
++#elif defined(__alpha__)
++ #define WLAN_CPU_FAMILY WLAN_ALPHA
++ #define WLAN_CPU_CORE WLAN_ALPHACORE
++ #define WLAN_CPU_PART WLAN_ALPHAPART
++ #define WLAN_SYSARCH WLAN_ALPHAARCH
++#elif defined(__mips__)
++ #define WLAN_CPU_FAMILY WLAN_MIPS
++ #define WLAN_CPU_CORE WLAN_MIPSCORE
++ #define WLAN_CPU_PART WLAN_MIPSPART
++ #define WLAN_SYSARCH WLAN_MIPSARCH
++#elif defined(__hppa__)
++ #define WLAN_CPU_FAMILY WLAN_HPPA
++ #define WLAN_CPU_CORE WLAN_HPPACORE
++ #define WLAN_CPU_PART WLAN_HPPAPART
++ #define WLAN_SYSARCH WLAN_HPPAARCH
++#elif defined(__sparc__)
++ #define WLAN_CPU_FAMILY WLAN_SPARC
++ #define WLAN_SYSARCH WLAN_SPARC
++#elif defined(__sh__)
++ #define WLAN_CPU_FAMILY WLAN_SH
++ #define WLAN_SYSARCH WLAN_SHARCH
++ #ifndef __LITTLE_ENDIAN__
++ #define __LITTLE_ENDIAN__
++ #endif
++#else
++ #error "No CPU identified!"
++#endif
++
++/*
++ Some big endian machines implicitly do all I/O in little endian mode.
++
++ In particular:
++ Linux/PPC on PowerMacs (PCI)
++ Arm/Intel Xscale (PCI)
++
++ This may also affect PLX boards and other BE &| PPC platforms;
++ as new ones are discovered, add them below.
++*/
++
++#if ((WLAN_SYSARCH == WLAN_SKIFF) || (WLAN_SYSARCH == WLAN_PMAC))
++#define REVERSE_ENDIAN
++#endif
++
++/*=============================================================*/
++/*------ Hardware Portability Macros --------------------------*/
++/*=============================================================*/
++#if (WLAN_CPU_FAMILY == WLAN_PPC)
++#define wlan_inw(a) in_be16((unsigned short *)((a)+_IO_BASE))
++#define wlan_inw_le16_to_cpu(a) inw((a))
++#define wlan_outw(v,a) out_be16((unsigned short *)((a)+_IO_BASE), (v))
++#define wlan_outw_cpu_to_le16(v,a) outw((v),(a))
++#else
++#define wlan_inw(a) inw((a))
++#define wlan_inw_le16_to_cpu(a) __cpu_to_le16(inw((a)))
++#define wlan_outw(v,a) outw((v),(a))
++#define wlan_outw_cpu_to_le16(v,a) outw(__cpu_to_le16((v)),(a))
++#endif
++
++/*=============================================================*/
++/*------ Bit settings -----------------------------------------*/
++/*=============================================================*/
++#define ieee2host16(n) __le16_to_cpu(n)
++#define ieee2host32(n) __le32_to_cpu(n)
++#define host2ieee16(n) __cpu_to_le16(n)
++#define host2ieee32(n) __cpu_to_le32(n)
++
++/* for constants */
++#ifdef __LITTLE_ENDIAN
++ #define IEEE16(a,n) a = n, a##i = n,
++#else
++ #ifdef __BIG_ENDIAN
++ /* shifts would produce gcc warnings. Oh well... */
++ #define IEEE16(a,n) a = n, a##i = ((n&0xff)*256 + ((n&0xff00)/256)),
++ #else
++ #error give me endianness or give me death
++ #endif
++#endif
++
++/*=============================================================*/
++/*------ Compiler Portability Macros --------------------------*/
++/*=============================================================*/
++#define WLAN_PACKED __attribute__ ((packed))
++
++/* Interrupt handler backwards compatibility stuff */
++#ifndef IRQ_NONE
++#define IRQ_NONE
++#define IRQ_HANDLED
++typedef void irqreturn_t;
++#endif
++
++#ifndef ARPHRD_IEEE80211_PRISM
++#define ARPHRD_IEEE80211_PRISM 802
++#endif
++
++#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
++
++/*============================================================================*
++ * Constants *
++ *============================================================================*/
++#define WLAN_IEEE_OUI_LEN 3
++
++/*============================================================================*
++ * Types *
++ *============================================================================*/
++
++/* local ether header type */
++typedef struct wlan_ethhdr {
++ u8 daddr[ETH_ALEN];
++ u8 saddr[ETH_ALEN];
++ u16 type;
++} WLAN_PACKED wlan_ethhdr_t;
++
++/* local llc header type */
++typedef struct wlan_llc {
++ u8 dsap;
++ u8 ssap;
++ u8 ctl;
++} WLAN_PACKED wlan_llc_t;
++
++/* local snap header type */
++typedef struct wlan_snap {
++ u8 oui[WLAN_IEEE_OUI_LEN];
++ u16 type;
++} WLAN_PACKED wlan_snap_t;
+Index: linux-2.6.22/drivers/net/wireless/acx/wlan_hdr.h
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/wlan_hdr.h 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,497 @@
++/***********************************************************************
++** Copyright (C) 2003 ACX100 Open Source Project
++**
++** The contents of this file are subject to the Mozilla Public
++** License Version 1.1 (the "License"); you may not use this file
++** except in compliance with the License. You may obtain a copy of
++** the License at http://www.mozilla.org/MPL/
++**
++** Software distributed under the License is distributed on an "AS
++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
++** implied. See the License for the specific language governing
++** rights and limitations under the License.
++**
++** Alternatively, the contents of this file may be used under the
++** terms of the GNU Public License version 2 (the "GPL"), in which
++** case the provisions of the GPL are applicable instead of the
++** above. If you wish to allow the use of your version of this file
++** only under the terms of the GPL and not to allow others to use
++** your version of this file under the MPL, indicate your decision
++** by deleting the provisions above and replace them with the notice
++** and other provisions required by the GPL. If you do not delete
++** the provisions above, a recipient may use your version of this
++** file under either the MPL or the GPL.
++** ---------------------------------------------------------------------
++** Inquiries regarding the ACX100 Open Source Project can be
++** made directly to:
++**
++** acx100-users@lists.sf.net
++** http://acx100.sf.net
++** ---------------------------------------------------------------------
++*/
++
++/***********************************************************************
++** This code is based on elements which are
++** Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
++** info@linux-wlan.com
++** http://www.linux-wlan.com
++*/
++
++/* mini-doc
++
++Here are all 11b/11g/11a rates and modulations:
++
++ 11b 11g 11a
++ --- --- ---
++ 1 |B |B |
++ 2 |Q |Q |
++ 5.5|Cp |C p|
++ 6 | |Od |O
++ 9 | |od |o
++11 |Cp |C p|
++12 | |Od |O
++18 | |od |o
++22 | | p|
++24 | |Od |O
++33 | | p|
++36 | |od |o
++48 | |od |o
++54 | |od |o
++
++Mandatory:
++ B - DBPSK (Differential Binary Phase Shift Keying)
++ Q - DQPSK (Differential Quaternary Phase Shift Keying)
++ C - CCK (Complementary Code Keying, a form of DSSS
++ (Direct Sequence Spread Spectrum) modulation)
++ O - OFDM (Orthogonal Frequency Division Multiplexing)
++Optional:
++ o - OFDM
++ d - CCK-OFDM (also known as DSSS-OFDM)
++ p - PBCC (Packet Binary Convolutional Coding)
++
++The term CCK-OFDM may be used interchangeably with DSSS-OFDM
++(the IEEE 802.11g-2003 standard uses the latter terminology).
++In the CCK-OFDM, the PLCP header of the frame uses the CCK form of DSSS,
++while the PLCP payload (the MAC frame) is modulated using OFDM.
++
++Basically, you must use CCK-OFDM if you have mixed 11b/11g environment,
++or else (pure OFDM) 11b equipment may not realize that AP
++is sending a packet and start sending its own one.
++Sadly, looks like acx111 does not support CCK-OFDM, only pure OFDM.
++
++Re PBCC: avoid using it. It makes sense only if you have
++TI "11b+" hardware. You _must_ use PBCC in order to reach 22Mbps on it.
++
++Preambles:
++
++Long preamble (at 1Mbit rate, takes 144 us):
++ 16 bytes ones
++ 2 bytes 0xF3A0 (lsb sent first)
++PLCP header follows (at 1Mbit also):
++ 1 byte Signal: speed, in 0.1Mbit units, except for:
++ 33Mbit: 33 (instead of 330 - doesn't fit in octet)
++ all CCK-OFDM rates: 30
++ 1 byte Service
++ 0,1,4: reserved
++ 2: 1=locked clock
++ 3: 1=PBCC
++ 5: Length Extension (PBCC 22,33Mbit (11g only)) <-
++ 6: Length Extension (PBCC 22,33Mbit (11g only)) <- BLACK MAGIC HERE
++ 7: Length Extension <-
++ 2 bytes Length (time needed to tx this frame)
++ a) 5.5 Mbit/s CCK
++ Length = octets*8/5.5, rounded up to integer
++ b) 11 Mbit/s CCK
++ Length = octets*8/11, rounded up to integer
++ Service bit 7:
++ 0 = rounding took less than 8/11
++ 1 = rounding took more than or equal to 8/11
++ c) 5.5 Mbit/s PBCC
++ Length = (octets+1)*8/5.5, rounded up to integer
++ d) 11 Mbit/s PBCC
++ Length = (octets+1)*8/11, rounded up to integer
++ Service bit 7:
++ 0 = rounding took less than 8/11
++ 1 = rounding took more than or equal to 8/11
++ e) 22 Mbit/s PBCC
++ Length = (octets+1)*8/22, rounded up to integer
++ Service bits 6,7:
++ 00 = rounding took less than 8/22ths
++ 01 = rounding took 8/22...15/22ths
++ 10 = rounding took 16/22ths or more.
++ f) 33 Mbit/s PBCC
++ Length = (octets+1)*8/33, rounded up to integer
++ Service bits 5,6,7:
++ 000 rounding took less than 8/33
++ 001 rounding took 8/33...15/33
++ 010 rounding took 16/33...23/33
++ 011 rounding took 24/33...31/33
++ 100 rounding took 32/33 or more
++ 2 bytes CRC
++
++PSDU follows (up to 2346 bytes at selected rate)
++
++While Signal value alone is not enough to determine rate and modulation,
++Signal+Service is always sufficient.
++
++Short preamble (at 1Mbit rate, takes 72 us):
++ 7 bytes zeroes
++ 2 bytes 0x05CF (lsb sent first)
++PLCP header follows *at 2Mbit/s*. Format is the same as in long preamble.
++PSDU follows (up to 2346 bytes at selected rate)
++
++OFDM preamble is completely different, uses OFDM
++modulation from the start and thus easily identifiable.
++Not shown here.
++*/
++
++
++/***********************************************************************
++** Constants
++*/
++
++#define WLAN_HDR_A3_LEN 24
++#define WLAN_HDR_A4_LEN 30
++/* IV structure:
++** 3 bytes: Initialization Vector (24 bits)
++** 1 byte: 0..5: padding, must be 0; 6..7: key selector (0-3)
++*/
++#define WLAN_WEP_IV_LEN 4
++/* 802.11 says 2312 but looks like 2312 is a max size of _WEPed data_ */
++#define WLAN_DATA_MAXLEN 2304
++#define WLAN_WEP_ICV_LEN 4
++#define WLAN_FCS_LEN 4
++#define WLAN_A3FR_MAXLEN (WLAN_HDR_A3_LEN + WLAN_DATA_MAXLEN)
++#define WLAN_A4FR_MAXLEN (WLAN_HDR_A4_LEN + WLAN_DATA_MAXLEN)
++#define WLAN_A3FR_MAXLEN_FCS (WLAN_HDR_A3_LEN + WLAN_DATA_MAXLEN + 4)
++#define WLAN_A4FR_MAXLEN_FCS (WLAN_HDR_A4_LEN + WLAN_DATA_MAXLEN + 4)
++#define WLAN_A3FR_MAXLEN_WEP (WLAN_A3FR_MAXLEN + 8)
++#define WLAN_A4FR_MAXLEN_WEP (WLAN_A4FR_MAXLEN + 8)
++#define WLAN_A3FR_MAXLEN_WEP_FCS (WLAN_A3FR_MAXLEN_FCS + 8)
++#define WLAN_A4FR_MAXLEN_WEP_FCS (WLAN_A4FR_MAXLEN_FCS + 8)
++
++#define WLAN_BSS_TS_LEN 8
++#define WLAN_SSID_MAXLEN 32
++#define WLAN_BEACON_FR_MAXLEN (WLAN_HDR_A3_LEN + 334)
++#define WLAN_ATIM_FR_MAXLEN (WLAN_HDR_A3_LEN + 0)
++#define WLAN_DISASSOC_FR_MAXLEN (WLAN_HDR_A3_LEN + 2)
++#define WLAN_ASSOCREQ_FR_MAXLEN (WLAN_HDR_A3_LEN + 48)
++#define WLAN_ASSOCRESP_FR_MAXLEN (WLAN_HDR_A3_LEN + 16)
++#define WLAN_REASSOCREQ_FR_MAXLEN (WLAN_HDR_A3_LEN + 54)
++#define WLAN_REASSOCRESP_FR_MAXLEN (WLAN_HDR_A3_LEN + 16)
++#define WLAN_PROBEREQ_FR_MAXLEN (WLAN_HDR_A3_LEN + 44)
++#define WLAN_PROBERESP_FR_MAXLEN (WLAN_HDR_A3_LEN + 78)
++#define WLAN_AUTHEN_FR_MAXLEN (WLAN_HDR_A3_LEN + 261)
++#define WLAN_DEAUTHEN_FR_MAXLEN (WLAN_HDR_A3_LEN + 2)
++#define WLAN_CHALLENGE_IE_LEN 130
++#define WLAN_CHALLENGE_LEN 128
++#define WLAN_WEP_MAXKEYLEN 13
++#define WLAN_WEP_NKEYS 4
++
++/*--- Frame Control Field -------------------------------------*/
++/* Frame Types */
++#define WLAN_FTYPE_MGMT 0x00
++#define WLAN_FTYPE_CTL 0x01
++#define WLAN_FTYPE_DATA 0x02
++
++/* Frame subtypes */
++/* Management */
++#define WLAN_FSTYPE_ASSOCREQ 0x00
++#define WLAN_FSTYPE_ASSOCRESP 0x01
++#define WLAN_FSTYPE_REASSOCREQ 0x02
++#define WLAN_FSTYPE_REASSOCRESP 0x03
++#define WLAN_FSTYPE_PROBEREQ 0x04
++#define WLAN_FSTYPE_PROBERESP 0x05
++#define WLAN_FSTYPE_BEACON 0x08
++#define WLAN_FSTYPE_ATIM 0x09
++#define WLAN_FSTYPE_DISASSOC 0x0a
++#define WLAN_FSTYPE_AUTHEN 0x0b
++#define WLAN_FSTYPE_DEAUTHEN 0x0c
++
++/* Control */
++#define WLAN_FSTYPE_PSPOLL 0x0a
++#define WLAN_FSTYPE_RTS 0x0b
++#define WLAN_FSTYPE_CTS 0x0c
++#define WLAN_FSTYPE_ACK 0x0d
++#define WLAN_FSTYPE_CFEND 0x0e
++#define WLAN_FSTYPE_CFENDCFACK 0x0f
++
++/* Data */
++#define WLAN_FSTYPE_DATAONLY 0x00
++#define WLAN_FSTYPE_DATA_CFACK 0x01
++#define WLAN_FSTYPE_DATA_CFPOLL 0x02
++#define WLAN_FSTYPE_DATA_CFACK_CFPOLL 0x03
++#define WLAN_FSTYPE_NULL 0x04
++#define WLAN_FSTYPE_CFACK 0x05
++#define WLAN_FSTYPE_CFPOLL 0x06
++#define WLAN_FSTYPE_CFACK_CFPOLL 0x07
++
++/*--- FC Constants v. 2.0 ------------------------------------*/
++/* Each constant is defined twice: WF_CONST is in host */
++/* byteorder, WF_CONSTi is in ieee byteorder. */
++/* Usage: */
++/* printf("the frame subtype is %X", WF_FC_FTYPEi & rx.fc); */
++/* tx.fc = WF_FTYPE_CTLi | WF_FSTYPE_RTSi; */
++/*------------------------------------------------------------*/
++
++enum {
++/*--- Frame Control Field -------------------------------------*/
++/* Protocol version: always 0 for current 802.11 standards */
++IEEE16(WF_FC_PVER, 0x0003)
++IEEE16(WF_FC_FTYPE, 0x000c)
++IEEE16(WF_FC_FSTYPE, 0x00f0)
++IEEE16(WF_FC_TODS, 0x0100)
++IEEE16(WF_FC_FROMDS, 0x0200)
++IEEE16(WF_FC_FROMTODS, 0x0300)
++IEEE16(WF_FC_MOREFRAG, 0x0400)
++IEEE16(WF_FC_RETRY, 0x0800)
++/* Indicates PS mode in which STA will be after successful completion
++** of current frame exchange sequence. Always 0 for AP frames */
++IEEE16(WF_FC_PWRMGT, 0x1000)
++/* What MoreData=1 means:
++** From AP to STA in PS mode: don't sleep yet, I have more frames for you
++** From Contention-Free (CF) Pollable STA in response to a CF-Poll:
++** STA has buffered frames for transmission in response to next CF-Poll
++** Bcast/mcast frames transmitted from AP:
++** when additional bcast/mcast frames remain to be transmitted by AP
++** during this beacon interval
++** In all other cases MoreData=0 */
++IEEE16(WF_FC_MOREDATA, 0x2000)
++IEEE16(WF_FC_ISWEP, 0x4000)
++IEEE16(WF_FC_ORDER, 0x8000)
++
++/* Frame Types */
++IEEE16(WF_FTYPE_MGMT, 0x00)
++IEEE16(WF_FTYPE_CTL, 0x04)
++IEEE16(WF_FTYPE_DATA, 0x08)
++
++/* Frame subtypes */
++/* Management */
++IEEE16(WF_FSTYPE_ASSOCREQ, 0x00)
++IEEE16(WF_FSTYPE_ASSOCRESP, 0x10)
++IEEE16(WF_FSTYPE_REASSOCREQ, 0x20)
++IEEE16(WF_FSTYPE_REASSOCRESP, 0x30)
++IEEE16(WF_FSTYPE_PROBEREQ, 0x40)
++IEEE16(WF_FSTYPE_PROBERESP, 0x50)
++IEEE16(WF_FSTYPE_BEACON, 0x80)
++IEEE16(WF_FSTYPE_ATIM, 0x90)
++IEEE16(WF_FSTYPE_DISASSOC, 0xa0)
++IEEE16(WF_FSTYPE_AUTHEN, 0xb0)
++IEEE16(WF_FSTYPE_DEAUTHEN, 0xc0)
++
++/* Control */
++IEEE16(WF_FSTYPE_PSPOLL, 0xa0)
++IEEE16(WF_FSTYPE_RTS, 0xb0)
++IEEE16(WF_FSTYPE_CTS, 0xc0)
++IEEE16(WF_FSTYPE_ACK, 0xd0)
++IEEE16(WF_FSTYPE_CFEND, 0xe0)
++IEEE16(WF_FSTYPE_CFENDCFACK, 0xf0)
++
++/* Data */
++IEEE16(WF_FSTYPE_DATAONLY, 0x00)
++IEEE16(WF_FSTYPE_DATA_CFACK, 0x10)
++IEEE16(WF_FSTYPE_DATA_CFPOLL, 0x20)
++IEEE16(WF_FSTYPE_DATA_CFACK_CFPOLL, 0x30)
++IEEE16(WF_FSTYPE_NULL, 0x40)
++IEEE16(WF_FSTYPE_CFACK, 0x50)
++IEEE16(WF_FSTYPE_CFPOLL, 0x60)
++IEEE16(WF_FSTYPE_CFACK_CFPOLL, 0x70)
++};
++
++
++/***********************************************************************
++** Macros
++*/
++
++/*--- Duration Macros ----------------------------------------*/
++/* Macros to get/set the bitfields of the Duration Field */
++/* - the duration value is only valid when bit15 is zero */
++/* - the firmware handles these values, so I'm not going */
++/* to use these macros right now. */
++/*------------------------------------------------------------*/
++
++/*--- Sequence Control Macros -------------------------------*/
++/* Macros to get/set the bitfields of the Sequence Control */
++/* Field. */
++/*------------------------------------------------------------*/
++#define WLAN_GET_SEQ_FRGNUM(n) ((u16)(n) & 0x000f)
++#define WLAN_GET_SEQ_SEQNUM(n) (((u16)(n) & 0xfff0) >> 4)
++
++/*--- Data ptr macro -----------------------------------------*/
++/* Creates a u8* to the data portion of a frame */
++/* Assumes you're passing in a ptr to the beginning of the hdr*/
++/*------------------------------------------------------------*/
++#define WLAN_HDR_A3_DATAP(p) (((u8*)(p)) + WLAN_HDR_A3_LEN)
++#define WLAN_HDR_A4_DATAP(p) (((u8*)(p)) + WLAN_HDR_A4_LEN)
++
++
++/***********************************************************************
++** Types
++*/
++
++/* 802.11 header type
++**
++** Note the following:
++** a1 *always* is receiver's mac or bcast/mcast
++** a2 *always* is transmitter's mac, if a2 exists
++** seq: [0:3] frag#, [4:15] seq# - used for dup detection
++** (dups from retries have same seq#) */
++typedef struct wlan_hdr {
++ u16 fc;
++ u16 dur;
++ u8 a1[ETH_ALEN];
++ u8 a2[ETH_ALEN];
++ u8 a3[ETH_ALEN];
++ u16 seq;
++ u8 a4[ETH_ALEN];
++} WLAN_PACKED wlan_hdr_t;
++
++/* Separate structs for use if frame type is known */
++typedef struct wlan_hdr_a3 {
++ u16 fc;
++ u16 dur;
++ u8 a1[ETH_ALEN];
++ u8 a2[ETH_ALEN];
++ u8 a3[ETH_ALEN];
++ u16 seq;
++} WLAN_PACKED wlan_hdr_a3_t;
++
++typedef struct wlan_hdr_mgmt {
++ u16 fc;
++ u16 dur;
++ u8 da[ETH_ALEN];
++ u8 sa[ETH_ALEN];
++ u8 bssid[ETH_ALEN];
++ u16 seq;
++} WLAN_PACKED wlan_hdr_mgmt_t;
++
++#ifdef NOT_NEEDED_YET
++typedef struct { /* ad-hoc peer->peer (to/from DS = 0/0) */
++ u16 fc;
++ u16 dur;
++ u8 da[ETH_ALEN];
++ u8 sa[ETH_ALEN];
++ u8 bssid[ETH_ALEN];
++ u16 seq;
++} WLAN_PACKED ibss;
++typedef struct { /* ap->sta (to/from DS = 0/1) */
++ u16 fc;
++ u16 dur;
++ u8 da[ETH_ALEN];
++ u8 bssid[ETH_ALEN];
++ u8 sa[ETH_ALEN];
++ u16 seq;
++} WLAN_PACKED fromap;
++typedef struct { /* sta->ap (to/from DS = 1/0) */
++ u16 fc;
++ u16 dur;
++ u8 bssid[ETH_ALEN];
++ u8 sa[ETH_ALEN];
++ u8 da[ETH_ALEN];
++ u16 seq;
++} WLAN_PACKED toap;
++typedef struct { /* wds->wds (to/from DS = 1/1), the only 4addr pkt */
++ u16 fc;
++ u16 dur;
++ u8 ra[ETH_ALEN];
++ u8 ta[ETH_ALEN];
++ u8 da[ETH_ALEN];
++ u16 seq;
++ u8 sa[ETH_ALEN];
++} WLAN_PACKED wds;
++typedef struct { /* all management packets */
++ u16 fc;
++ u16 dur;
++ u8 da[ETH_ALEN];
++ u8 sa[ETH_ALEN];
++ u8 bssid[ETH_ALEN];
++ u16 seq;
++} WLAN_PACKED mgmt;
++typedef struct { /* has no body, just a FCS */
++ u16 fc;
++ u16 dur;
++ u8 ra[ETH_ALEN];
++ u8 ta[ETH_ALEN];
++} WLAN_PACKED rts;
++typedef struct { /* has no body, just a FCS */
++ u16 fc;
++ u16 dur;
++ u8 ra[ETH_ALEN];
++} WLAN_PACKED cts;
++typedef struct { /* has no body, just a FCS */
++ u16 fc;
++ u16 dur;
++ u8 ra[ETH_ALEN];
++} WLAN_PACKED ack;
++typedef struct { /* has no body, just a FCS */
++ u16 fc;
++ /* NB: this one holds Assoc ID in dur field: */
++ u16 aid;
++ u8 bssid[ETH_ALEN];
++ u8 ta[ETH_ALEN];
++} WLAN_PACKED pspoll;
++typedef struct { /* has no body, just a FCS */
++ u16 fc;
++ u16 dur;
++ u8 ra[ETH_ALEN];
++ u8 bssid[ETH_ALEN];
++} WLAN_PACKED cfend;
++typedef struct { /* has no body, just a FCS */
++ u16 fc;
++ u16 dur;
++ u8 ra[ETH_ALEN];
++ u8 bssid[ETH_ALEN];
++} WLAN_PACKED cfendcfack;
++#endif
++
++/* Prism header emulation (monitor mode) */
++typedef struct wlanitem_u32 {
++ u32 did;
++ u16 status;
++ u16 len;
++ u32 data;
++} WLAN_PACKED wlanitem_u32_t;
++#define WLANITEM_STATUS_data_ok 0
++#define WLANITEM_STATUS_no_value 1
++#define WLANITEM_STATUS_invalid_itemname 2
++#define WLANITEM_STATUS_invalid_itemdata 3
++#define WLANITEM_STATUS_missing_itemdata 4
++#define WLANITEM_STATUS_incomplete_itemdata 5
++#define WLANITEM_STATUS_invalid_msg_did 6
++#define WLANITEM_STATUS_invalid_mib_did 7
++#define WLANITEM_STATUS_missing_conv_func 8
++#define WLANITEM_STATUS_string_too_long 9
++#define WLANITEM_STATUS_data_out_of_range 10
++#define WLANITEM_STATUS_string_too_short 11
++#define WLANITEM_STATUS_missing_valid_func 12
++#define WLANITEM_STATUS_unknown 13
++#define WLANITEM_STATUS_invalid_did 14
++#define WLANITEM_STATUS_missing_print_func 15
++
++#define WLAN_DEVNAMELEN_MAX 16
++typedef struct wlansniffrm {
++ u32 msgcode;
++ u32 msglen;
++ u8 devname[WLAN_DEVNAMELEN_MAX];
++ wlanitem_u32_t hosttime;
++ wlanitem_u32_t mactime;
++ wlanitem_u32_t channel;
++ wlanitem_u32_t rssi;
++ wlanitem_u32_t sq;
++ wlanitem_u32_t signal;
++ wlanitem_u32_t noise;
++ wlanitem_u32_t rate;
++ wlanitem_u32_t istx; /* tx? 0:no 1:yes */
++ wlanitem_u32_t frmlen;
++} WLAN_PACKED wlansniffrm_t;
++#define WLANSNIFFFRM 0x0041
++#define WLANSNIFFFRM_hosttime 0x1041
++#define WLANSNIFFFRM_mactime 0x2041
++#define WLANSNIFFFRM_channel 0x3041
++#define WLANSNIFFFRM_rssi 0x4041
++#define WLANSNIFFFRM_sq 0x5041
++#define WLANSNIFFFRM_signal 0x6041
++#define WLANSNIFFFRM_noise 0x7041
++#define WLANSNIFFFRM_rate 0x8041
++#define WLANSNIFFFRM_istx 0x9041
++#define WLANSNIFFFRM_frmlen 0xA041
+Index: linux-2.6.22/drivers/net/wireless/acx/wlan_mgmt.h
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.22/drivers/net/wireless/acx/wlan_mgmt.h 2007-08-23 18:34:19.000000000 +0200
+@@ -0,0 +1,582 @@
++/***********************************************************************
++** Copyright (C) 2003 ACX100 Open Source Project
++**
++** The contents of this file are subject to the Mozilla Public
++** License Version 1.1 (the "License"); you may not use this file
++** except in compliance with the License. You may obtain a copy of
++** the License at http://www.mozilla.org/MPL/
++**
++** Software distributed under the License is distributed on an "AS
++** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
++** implied. See the License for the specific language governing
++** rights and limitations under the License.
++**
++** Alternatively, the contents of this file may be used under the
++** terms of the GNU Public License version 2 (the "GPL"), in which
++** case the provisions of the GPL are applicable instead of the
++** above. If you wish to allow the use of your version of this file
++** only under the terms of the GPL and not to allow others to use
++** your version of this file under the MPL, indicate your decision
++** by deleting the provisions above and replace them with the notice
++** and other provisions required by the GPL. If you do not delete
++** the provisions above, a recipient may use your version of this
++** file under either the MPL or the GPL.
++** ---------------------------------------------------------------------
++** Inquiries regarding the ACX100 Open Source Project can be
++** made directly to:
++**
++** acx100-users@lists.sf.net
++** http://acx100.sf.net
++** ---------------------------------------------------------------------
++*/
++
++/***********************************************************************
++** This code is based on elements which are
++** Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
++** info@linux-wlan.com
++** http://www.linux-wlan.com
++*/
++
++/***********************************************************************
++** Constants
++*/
++
++/*-- Information Element IDs --------------------*/
++#define WLAN_EID_SSID 0
++#define WLAN_EID_SUPP_RATES 1
++#define WLAN_EID_FH_PARMS 2
++#define WLAN_EID_DS_PARMS 3
++#define WLAN_EID_CF_PARMS 4
++#define WLAN_EID_TIM 5
++#define WLAN_EID_IBSS_PARMS 6
++#define WLAN_EID_COUNTRY 7 /* 802.11d */
++#define WLAN_EID_FH_HOP_PARMS 8 /* 802.11d */
++#define WLAN_EID_FH_TABLE 9 /* 802.11d */
++#define WLAN_EID_REQUEST 10 /* 802.11d */
++/*-- values 11-15 reserved --*/
++#define WLAN_EID_CHALLENGE 16
++/*-- values 17-31 reserved for challenge text extension --*/
++#define WLAN_EID_PWR_CONSTRAINT 32 /* 11h PowerConstraint */
++#define WLAN_EID_ERP_INFO 42 /* was seen from WRT54GS with OpenWrt */
++#define WLAN_EID_NONERP 47 /* was seen from WRT54GS with OpenWrt */
++#define WLAN_EID_RSN 48
++#define WLAN_EID_EXT_RATES 50
++#define WLAN_EID_UNKNOWN128 128
++#define WLAN_EID_UNKNOWN133 133
++#define WLAN_EID_GENERIC 221 /* was seen from WRT54GS with OpenWrt */
++#define WLAN_EID_UNKNOWN223 223
++
++#if 0
++#define WLAN_EID_PWR_CAP 33 /* 11h PowerCapability */
++#define WLAN_EID_TPC_REQUEST 34 /* 11h TPC Request */
++#define WLAN_EID_TPC_REPORT 35 /* 11h TPC Report */
++#define WLAN_EID_SUPP_CHANNELS 36 /* 11h Supported Channels */
++#define WLAN_EID_CHANNEL_SWITCH 37 /* 11h ChannelSwitch */
++#define WLAN_EID_MEASURE_REQUEST 38 /* 11h MeasurementRequest */
++#define WLAN_EID_MEASURE_REPORT 39 /* 11h MeasurementReport */
++#define WLAN_EID_QUIET_ID 40 /* 11h Quiet */
++#define WLAN_EID_IBSS_DFS_ID 41 /* 11h IBSS_DFS */
++#endif
++
++/*-- Reason Codes -------------------------------*/
++#define WLAN_MGMT_REASON_RSVD 0
++#define WLAN_MGMT_REASON_UNSPEC 1
++#define WLAN_MGMT_REASON_PRIOR_AUTH_INVALID 2
++#define WLAN_MGMT_REASON_DEAUTH_LEAVING 3
++#define WLAN_MGMT_REASON_DISASSOC_INACTIVE 4
++#define WLAN_MGMT_REASON_DISASSOC_AP_BUSY 5
++#define WLAN_MGMT_REASON_CLASS2_NONAUTH 6
++#define WLAN_MGMT_REASON_CLASS3_NONASSOC 7
++#define WLAN_MGMT_REASON_DISASSOC_STA_HASLEFT 8
++#define WLAN_MGMT_REASON_CANT_ASSOC_NONAUTH 9
++
++/*-- Status Codes -------------------------------*/
++#define WLAN_MGMT_STATUS_SUCCESS 0
++#define WLAN_MGMT_STATUS_UNSPEC_FAILURE 1
++#define WLAN_MGMT_STATUS_CAPS_UNSUPPORTED 10
++#define WLAN_MGMT_STATUS_REASSOC_NO_ASSOC 11
++#define WLAN_MGMT_STATUS_ASSOC_DENIED_UNSPEC 12
++#define WLAN_MGMT_STATUS_UNSUPPORTED_AUTHALG 13
++#define WLAN_MGMT_STATUS_RX_AUTH_NOSEQ 14
++#define WLAN_MGMT_STATUS_CHALLENGE_FAIL 15
++#define WLAN_MGMT_STATUS_AUTH_TIMEOUT 16
++#define WLAN_MGMT_STATUS_ASSOC_DENIED_BUSY 17
++#define WLAN_MGMT_STATUS_ASSOC_DENIED_RATES 18
++/* p80211b additions */
++#define WLAN_MGMT_STATUS_ASSOC_DENIED_NOSHORT 19
++#define WLAN_MGMT_STATUS_ASSOC_DENIED_NOPBCC 20
++#define WLAN_MGMT_STATUS_ASSOC_DENIED_NOAGILITY 21
++
++/*-- Auth Algorithm Field ---------------------------*/
++#define WLAN_AUTH_ALG_OPENSYSTEM 0
++#define WLAN_AUTH_ALG_SHAREDKEY 1
++
++/*-- Management Frame Field Offsets -------------*/
++/* Note: Not all fields are listed because of variable lengths */
++/* Note: These offsets are from the start of the frame data */
++
++#define WLAN_BEACON_OFF_TS 0
++#define WLAN_BEACON_OFF_BCN_INT 8
++#define WLAN_BEACON_OFF_CAPINFO 10
++#define WLAN_BEACON_OFF_SSID 12
++
++#define WLAN_DISASSOC_OFF_REASON 0
++
++#define WLAN_ASSOCREQ_OFF_CAP_INFO 0
++#define WLAN_ASSOCREQ_OFF_LISTEN_INT 2
++#define WLAN_ASSOCREQ_OFF_SSID 4
++
++#define WLAN_ASSOCRESP_OFF_CAP_INFO 0
++#define WLAN_ASSOCRESP_OFF_STATUS 2
++#define WLAN_ASSOCRESP_OFF_AID 4
++#define WLAN_ASSOCRESP_OFF_SUPP_RATES 6
++
++#define WLAN_REASSOCREQ_OFF_CAP_INFO 0
++#define WLAN_REASSOCREQ_OFF_LISTEN_INT 2
++#define WLAN_REASSOCREQ_OFF_CURR_AP 4
++#define WLAN_REASSOCREQ_OFF_SSID 10
++
++#define WLAN_REASSOCRESP_OFF_CAP_INFO 0
++#define WLAN_REASSOCRESP_OFF_STATUS 2
++#define WLAN_REASSOCRESP_OFF_AID 4
++#define WLAN_REASSOCRESP_OFF_SUPP_RATES 6
++
++#define WLAN_PROBEREQ_OFF_SSID 0
++
++#define WLAN_PROBERESP_OFF_TS 0
++#define WLAN_PROBERESP_OFF_BCN_INT 8
++#define WLAN_PROBERESP_OFF_CAP_INFO 10
++#define WLAN_PROBERESP_OFF_SSID 12
++
++#define WLAN_AUTHEN_OFF_AUTH_ALG 0
++#define WLAN_AUTHEN_OFF_AUTH_SEQ 2
++#define WLAN_AUTHEN_OFF_STATUS 4
++#define WLAN_AUTHEN_OFF_CHALLENGE 6
++
++#define WLAN_DEAUTHEN_OFF_REASON 0
++
++enum {
++IEEE16(WF_MGMT_CAP_ESS, 0x0001)
++IEEE16(WF_MGMT_CAP_IBSS, 0x0002)
++/* In (re)assoc request frames by STA:
++** Pollable=0, PollReq=0: STA is not CF-Pollable
++** 0 1: STA is CF-Pollable, not requesting to be placed on the CF-Polling list
++** 1 0: STA is CF-Pollable, requesting to be placed on the CF-Polling list
++** 1 1: STA is CF-Pollable, requesting never to be polled
++** In beacon, proberesp, (re)assoc resp frames by AP:
++** 0 0: No point coordinator at AP
++** 0 1: Point coordinator at AP for delivery only (no polling)
++** 1 0: Point coordinator at AP for delivery and polling
++** 1 1: Reserved */
++IEEE16(WF_MGMT_CAP_CFPOLLABLE, 0x0004)
++IEEE16(WF_MGMT_CAP_CFPOLLREQ, 0x0008)
++/* 1=non-WEP data frames are disallowed */
++IEEE16(WF_MGMT_CAP_PRIVACY, 0x0010)
++/* In beacon, proberesp, (re)assocresp by AP/AdHoc:
++** 1=use of shortpre is allowed ("I can receive shortpre") */
++IEEE16(WF_MGMT_CAP_SHORT, 0x0020)
++IEEE16(WF_MGMT_CAP_PBCC, 0x0040)
++IEEE16(WF_MGMT_CAP_AGILITY, 0x0080)
++/* In (re)assoc request frames by STA:
++** 1=short slot time implemented and enabled
++** NB: AP shall use long slot time beginning at the next Beacon after assoc
++** of STA with this bit set to 0
++** In beacon, proberesp, (re)assoc resp frames by AP:
++** currently used slot time value: 0/1 - long/short */
++IEEE16(WF_MGMT_CAP_SHORTSLOT, 0x0400)
++/* In (re)assoc request frames by STA: 1=CCK-OFDM is implemented and enabled
++** In beacon, proberesp, (re)assoc resp frames by AP/AdHoc:
++** 1=CCK-OFDM is allowed */
++IEEE16(WF_MGMT_CAP_CCKOFDM, 0x2000)
++};
++
++
++/***********************************************************************
++** Types
++*/
++
++/* Information Element types */
++
++/* prototype structure, all IEs start with these members */
++typedef struct wlan_ie {
++ u8 eid;
++ u8 len;
++} WLAN_PACKED wlan_ie_t;
++
++/*-- Service Set Identity (SSID) -----------------*/
++typedef struct wlan_ie_ssid {
++ u8 eid;
++ u8 len;
++ u8 ssid[1]; /* may be zero */
++} WLAN_PACKED wlan_ie_ssid_t;
++
++/*-- Supported Rates -----------------------------*/
++typedef struct wlan_ie_supp_rates {
++ u8 eid;
++ u8 len;
++ u8 rates[1]; /* had better be at LEAST one! */
++} WLAN_PACKED wlan_ie_supp_rates_t;
++
++/*-- FH Parameter Set ----------------------------*/
++typedef struct wlan_ie_fh_parms {
++ u8 eid;
++ u8 len;
++ u16 dwell;
++ u8 hopset;
++ u8 hoppattern;
++ u8 hopindex;
++} WLAN_PACKED wlan_ie_fh_parms_t;
++
++/*-- DS Parameter Set ----------------------------*/
++typedef struct wlan_ie_ds_parms {
++ u8 eid;
++ u8 len;
++ u8 curr_ch;
++} WLAN_PACKED wlan_ie_ds_parms_t;
++
++/*-- CF Parameter Set ----------------------------*/
++typedef struct wlan_ie_cf_parms {
++ u8 eid;
++ u8 len;
++ u8 cfp_cnt;
++ u8 cfp_period;
++ u16 cfp_maxdur;
++ u16 cfp_durremaining;
++} WLAN_PACKED wlan_ie_cf_parms_t;
++
++/*-- TIM ------------------------------------------*/
++typedef struct wlan_ie_tim {
++ u8 eid;
++ u8 len;
++ u8 dtim_cnt;
++ u8 dtim_period;
++ u8 bitmap_ctl;
++ u8 virt_bm[1];
++} WLAN_PACKED wlan_ie_tim_t;
++
++/*-- IBSS Parameter Set ---------------------------*/
++typedef struct wlan_ie_ibss_parms {
++ u8 eid;
++ u8 len;
++ u16 atim_win;
++} WLAN_PACKED wlan_ie_ibss_parms_t;
++
++/*-- Challenge Text ------------------------------*/
++typedef struct wlan_ie_challenge {
++ u8 eid;
++ u8 len;
++ u8 challenge[1];
++} WLAN_PACKED wlan_ie_challenge_t;
++
++/*-- ERP (42) -------------------------------------*/
++typedef struct wlan_ie_erp {
++ u8 eid;
++ u8 len;
++ /* bit 0:Non ERP present
++ ** 1:Use Protection
++ ** 2:Barker Preamble mode
++ ** 3-7:reserved */
++ u8 erp;
++} WLAN_PACKED wlan_ie_erp_t;
++
++/* Types for parsing mgmt frames */
++
++/* prototype structure, all mgmt frame types will start with these members */
++typedef struct wlan_fr_mgmt {
++ u16 type;
++ u16 len; /* DOES NOT include FCS */
++ wlan_hdr_t *hdr;
++ /* used for target specific data, skb in Linux */
++ /*-- fixed fields -----------*/
++ /*-- info elements ----------*/
++} WLAN_PACKED wlan_fr_mgmt_t;
++
++/*-- Beacon ---------------------------------------*/
++typedef struct wlan_fr_beacon {
++ u16 type;
++ u16 len;
++ wlan_hdr_t *hdr;
++ /*-- fixed fields -----------*/
++ u64 *ts;
++ u16 *bcn_int;
++ u16 *cap_info;
++ /*-- info elements ----------*/
++ wlan_ie_ssid_t *ssid;
++ wlan_ie_supp_rates_t *supp_rates;
++ wlan_ie_supp_rates_t *ext_rates;
++ wlan_ie_fh_parms_t *fh_parms;
++ wlan_ie_ds_parms_t *ds_parms;
++ wlan_ie_cf_parms_t *cf_parms;
++ wlan_ie_ibss_parms_t *ibss_parms;
++ wlan_ie_tim_t *tim; /* in beacon only, not proberesp */
++ wlan_ie_erp_t *erp; /* in beacon only, not proberesp */
++} wlan_fr_beacon_t;
++#define wlan_fr_proberesp wlan_fr_beacon
++#define wlan_fr_proberesp_t wlan_fr_beacon_t
++
++/*-- IBSS ATIM ------------------------------------*/
++typedef struct wlan_fr_ibssatim {
++ u16 type;
++ u16 len;
++ wlan_hdr_t *hdr;
++ /*-- fixed fields -----------*/
++ /*-- info elements ----------*/
++ /* this frame type has a null body */
++} wlan_fr_ibssatim_t;
++
++/*-- Disassociation -------------------------------*/
++typedef struct wlan_fr_disassoc {
++ u16 type;
++ u16 len;
++ wlan_hdr_t *hdr;
++ /*-- fixed fields -----------*/
++ u16 *reason;
++ /*-- info elements ----------*/
++} wlan_fr_disassoc_t;
++
++/*-- Association Request --------------------------*/
++typedef struct wlan_fr_assocreq {
++ u16 type;
++ u16 len;
++ wlan_hdr_t *hdr;
++ /*-- fixed fields -----------*/
++ u16 *cap_info;
++ u16 *listen_int;
++ /*-- info elements ----------*/
++ wlan_ie_ssid_t *ssid;
++ wlan_ie_supp_rates_t *supp_rates;
++ wlan_ie_supp_rates_t *ext_rates;
++} wlan_fr_assocreq_t;
++
++/*-- Association Response -------------------------*/
++typedef struct wlan_fr_assocresp {
++ u16 type;
++ u16 len;
++ wlan_hdr_t *hdr;
++ /*-- fixed fields -----------*/
++ u16 *cap_info;
++ u16 *status;
++ u16 *aid;
++ /*-- info elements ----------*/
++ wlan_ie_supp_rates_t *supp_rates;
++ wlan_ie_supp_rates_t *ext_rates;
++} wlan_fr_assocresp_t;
++
++/*-- Reassociation Request ------------------------*/
++typedef struct wlan_fr_reassocreq {
++ u16 type;
++ u16 len;
++ wlan_hdr_t *hdr;
++ /*-- fixed fields -----------*/
++ u16 *cap_info;
++ u16 *listen_int;
++ u8 *curr_ap;
++ /*-- info elements ----------*/
++ wlan_ie_ssid_t *ssid;
++ wlan_ie_supp_rates_t *supp_rates;
++ wlan_ie_supp_rates_t *ext_rates;
++} wlan_fr_reassocreq_t;
++
++/*-- Reassociation Response -----------------------*/
++typedef struct wlan_fr_reassocresp {
++ u16 type;
++ u16 len;
++ wlan_hdr_t *hdr;
++ /*-- fixed fields -----------*/
++ u16 *cap_info;
++ u16 *status;
++ u16 *aid;
++ /*-- info elements ----------*/
++ wlan_ie_supp_rates_t *supp_rates;
++ wlan_ie_supp_rates_t *ext_rates;
++} wlan_fr_reassocresp_t;
++
++/*-- Probe Request --------------------------------*/
++typedef struct wlan_fr_probereq {
++ u16 type;
++ u16 len;
++ wlan_hdr_t *hdr;
++ /*-- fixed fields -----------*/
++ /*-- info elements ----------*/
++ wlan_ie_ssid_t *ssid;
++ wlan_ie_supp_rates_t *supp_rates;
++ wlan_ie_supp_rates_t *ext_rates;
++} wlan_fr_probereq_t;
++
++/*-- Authentication -------------------------------*/
++typedef struct wlan_fr_authen {
++ u16 type;
++ u16 len;
++ wlan_hdr_t *hdr;
++ /*-- fixed fields -----------*/
++ u16 *auth_alg;
++ u16 *auth_seq;
++ u16 *status;
++ /*-- info elements ----------*/
++ wlan_ie_challenge_t *challenge;
++} wlan_fr_authen_t;
++
++/*-- Deauthenication -----------------------------*/
++typedef struct wlan_fr_deauthen {
++ u16 type;
++ u16 len;
++ wlan_hdr_t *hdr;
++ /*-- fixed fields -----------*/
++ u16 *reason;
++ /*-- info elements ----------*/
++} wlan_fr_deauthen_t;
++
++/* Types for building mgmt frames */
++
++/* Warning. Several types used in below structs are
++** in fact variable length. Use structs with such fields with caution */
++typedef struct auth_frame_body {
++ u16 auth_alg;
++ u16 auth_seq;
++ u16 status;
++ wlan_ie_challenge_t challenge;
++} WLAN_PACKED auth_frame_body_t;
++
++typedef struct assocresp_frame_body {
++ u16 cap_info;
++ u16 status;
++ u16 aid;
++ wlan_ie_supp_rates_t rates;
++} WLAN_PACKED assocresp_frame_body_t;
++
++typedef struct reassocreq_frame_body {
++ u16 cap_info;
++ u16 listen_int;
++ u8 current_ap[ETH_ALEN];
++ wlan_ie_ssid_t ssid;
++/* access to this one is disabled since ssid_t is variable length: */
++ /* wlan_ie_supp_rates_t rates; */
++} WLAN_PACKED reassocreq_frame_body_t;
++
++typedef struct reassocresp_frame_body {
++ u16 cap_info;
++ u16 status;
++ u16 aid;
++ wlan_ie_supp_rates_t rates;
++} WLAN_PACKED reassocresp_frame_body_t;
++
++typedef struct deauthen_frame_body {
++ u16 reason;
++} WLAN_PACKED deauthen_frame_body_t;
++
++typedef struct disassoc_frame_body {
++ u16 reason;
++} WLAN_PACKED disassoc_frame_body_t;
++
++typedef struct probereq_frame_body {
++ wlan_ie_ssid_t ssid;
++ wlan_ie_supp_rates_t rates;
++} WLAN_PACKED probereq_frame_body_t;
++
++typedef struct proberesp_frame_body {
++ u8 timestamp[8];
++ u16 beacon_int;
++ u16 cap_info;
++ wlan_ie_ssid_t ssid;
++/* access to these is disabled since ssid_t is variable length: */
++ /* wlan_ie_supp_rates_t rates; */
++ /* fhps_t fhps; */
++ /* dsps_t dsps; */
++ /* cfps_t cfps; */
++} WLAN_PACKED proberesp_frame_body_t;
++
++
++/***********************************************************************
++** Functions
++*/
++
++/* Helpers for parsing mgmt frames */
++void wlan_mgmt_decode_ibssatim(wlan_fr_ibssatim_t *f);
++void wlan_mgmt_decode_assocreq(wlan_fr_assocreq_t *f);
++void wlan_mgmt_decode_assocresp(wlan_fr_assocresp_t *f);
++void wlan_mgmt_decode_authen(wlan_fr_authen_t *f);
++void wlan_mgmt_decode_beacon(wlan_fr_beacon_t *f);
++void wlan_mgmt_decode_deauthen(wlan_fr_deauthen_t *f);
++void wlan_mgmt_decode_disassoc(wlan_fr_disassoc_t *f);
++void wlan_mgmt_decode_probereq(wlan_fr_probereq_t *f);
++void wlan_mgmt_decode_proberesp(wlan_fr_proberesp_t *f);
++void wlan_mgmt_decode_reassocreq(wlan_fr_reassocreq_t *f);
++void wlan_mgmt_decode_reassocresp(wlan_fr_reassocresp_t *f);
++
++/* Helpers for building mgmt frames */
++static inline u8*
++wlan_fill_ie_ssid(u8 *p, int len, const char *ssid)
++{
++ struct wlan_ie_ssid *ie = (void*)p;
++ ie->eid = WLAN_EID_SSID;
++ ie->len = len;
++ memcpy(ie->ssid, ssid, len);
++ return p + len + 2;
++}
++/* This controls whether we create 802.11g 'ext supported rates' IEs
++** or just create overlong 'supported rates' IEs instead
++** (non-11g compliant) */
++#define WE_OBEY_802_11G 1
++static inline u8*
++wlan_fill_ie_rates(u8 *p, int len, const u8 *rates)
++{
++ struct wlan_ie_supp_rates *ie = (void*)p;
++#if WE_OBEY_802_11G
++ if (len > 8 ) len = 8;
++#endif
++ /* supported rates (1 to 8 octets) */
++ ie->eid = WLAN_EID_SUPP_RATES;
++ ie->len = len;
++ memcpy(ie->rates, rates, len);
++ return p + len + 2;
++}
++/* This one wouldn't create an IE at all if not needed */
++static inline u8*
++wlan_fill_ie_rates_ext(u8 *p, int len, const u8 *rates)
++{
++ struct wlan_ie_supp_rates *ie = (void*)p;
++#if !WE_OBEY_802_11G
++ return p;
++#endif
++ len -= 8;
++ if (len <= 0) return p;
++ /* ext supported rates */
++ ie->eid = WLAN_EID_EXT_RATES;
++ ie->len = len;
++ memcpy(ie->rates, rates+8, len);
++ return p + len + 2;
++}
++static inline u8*
++wlan_fill_ie_ds_parms(u8 *p, int channel)
++{
++ struct wlan_ie_ds_parms *ie = (void*)p;
++ ie->eid = WLAN_EID_DS_PARMS;
++ ie->len = 1;
++ ie->curr_ch = channel;
++ return p + sizeof(*ie);
++}
++static inline u8*
++wlan_fill_ie_ibss_parms(u8 *p, int atim_win)
++{
++ struct wlan_ie_ibss_parms *ie = (void*)p;
++ ie->eid = WLAN_EID_IBSS_PARMS;
++ ie->len = 2;
++ ie->atim_win = atim_win;
++ return p + sizeof(*ie);
++}
++static inline u8*
++wlan_fill_ie_tim(u8 *p, int rem, int period, int bcast,
++ int ofs, int len, const u8 *vbm)
++{
++ struct wlan_ie_tim *ie = (void*)p;
++ ie->eid = WLAN_EID_TIM;
++ ie->len = len + 3;
++ ie->dtim_cnt = rem;
++ ie->dtim_period = period;
++ ie->bitmap_ctl = ofs | (bcast!=0);
++ if (vbm)
++ memcpy(ie->virt_bm, vbm, len); /* min 1 byte */
++ else
++ ie->virt_bm[0] = 0;
++ return p + len + 3 + 2;
++}
+Index: linux-2.6.22/drivers/net/wireless/Kconfig
+===================================================================
+--- linux-2.6.22.orig/drivers/net/wireless/Kconfig 2007-07-09 01:32:17.000000000 +0200
++++ linux-2.6.22/drivers/net/wireless/Kconfig 2007-08-23 18:34:19.000000000 +0200
+@@ -5,6 +5,36 @@
+ menu "Wireless LAN"
+ depends on !S390
+
++config NET_RADIO
++ bool "Wireless LAN drivers (non-hamradio) & Wireless Extensions"
++ select WIRELESS_EXT
++ ---help---
++ Support for wireless LANs and everything having to do with radio,
++ but not with amateur radio or FM broadcasting.
++
++ Saying Y here also enables the Wireless Extensions (creates
++ /proc/net/wireless and enables iwconfig access). The Wireless
++ Extension is a generic API allowing a driver to expose to the user
++ space configuration and statistics specific to common Wireless LANs.
++ The beauty of it is that a single set of tool can support all the
++ variations of Wireless LANs, regardless of their type (as long as
++ the driver supports Wireless Extension). Another advantage is that
++ these parameters may be changed on the fly without restarting the
++ driver (or Linux). If you wish to use Wireless Extensions with
++ wireless PCMCIA (PC-) cards, you need to say Y here; you can fetch
++ the tools from
++ <http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html>.
++
++config NET_WIRELESS_RTNETLINK
++ bool "Wireless Extension API over RtNetlink"
++ depends on NET_RADIO
++ ---help---
++ Support the Wireless Extension API over the RtNetlink socket
++ in addition to the traditional ioctl interface (selected above).
++
++ For now, few tools use this facility, but it might grow in the
++ future. The only downside is that it adds 4.5 kB to your kernel.
++
+ config WLAN_PRE80211
+ bool "Wireless LAN (pre-802.11)"
+ depends on NETDEVICES
+@@ -549,5 +579,6 @@
+ source "drivers/net/wireless/hostap/Kconfig"
+ source "drivers/net/wireless/bcm43xx/Kconfig"
+ source "drivers/net/wireless/zd1211rw/Kconfig"
++source "drivers/net/wireless/acx/Kconfig"
+
+ endmenu
+Index: linux-2.6.22/drivers/net/wireless/Makefile
+===================================================================
+--- linux-2.6.22.orig/drivers/net/wireless/Makefile 2007-07-09 01:32:17.000000000 +0200
++++ linux-2.6.22/drivers/net/wireless/Makefile 2007-08-23 18:34:19.000000000 +0200
+@@ -34,6 +34,8 @@
+
+ obj-$(CONFIG_PRISM54) += prism54/
+
++obj-$(CONFIG_ACX) += acx/
++
+ obj-$(CONFIG_HOSTAP) += hostap/
+ obj-$(CONFIG_BCM43XX) += bcm43xx/
+ obj-$(CONFIG_ZD1211RW) += zd1211rw/
