--- /dev/null
+Index: linux-2.6.23/drivers/input/touchscreen/Kconfig
+===================================================================
+--- linux-2.6.23.orig/drivers/input/touchscreen/Kconfig 2008-02-13 01:12:29.000000000 +0000
++++ linux-2.6.23/drivers/input/touchscreen/Kconfig 2008-02-13 01:13:20.000000000 +0000
+@@ -54,6 +54,12 @@
+ To compile this driver as a module, choose M here: the
+ module will be called corgi_ts.
+
++config TOUCHSCREEN_ZYLONITE
++ tristate "Zylonite touchscreen driver"
++ default y
++ help
++ Say Y here for the Zylonite touchscreen driver
++
+ config TOUCHSCREEN_FUJITSU
+ tristate "Fujitsu serial touchscreen"
+ select SERIO
+Index: linux-2.6.23/drivers/input/touchscreen/Makefile
+===================================================================
+--- linux-2.6.23.orig/drivers/input/touchscreen/Makefile 2008-02-13 01:12:29.000000000 +0000
++++ linux-2.6.23/drivers/input/touchscreen/Makefile 2008-02-13 01:13:38.000000000 +0000
+@@ -19,3 +19,4 @@
+ obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN) += touchwin.o
+ obj-$(CONFIG_TOUCHSCREEN_UCB1400) += ucb1400_ts.o
+ obj-$(CONFIG_TOUCHSCREEN_TSC2101) += tsc2101_ts.o
++obj-$(CONFIG_TOUCHSCREEN_ZYLONITE) += zylonite-ts.o
+Index: linux-2.6.23/drivers/input/touchscreen/zylonite-ts.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.23/drivers/input/touchscreen/zylonite-ts.c 2008-02-13 16:19:15.000000000 +0000
+@@ -0,0 +1,1517 @@
++/*
++ * drivers/input/touchscreen/mhn_audio_touch.c.
++ *
++ * Author: bridge.wu@marvell.com
++ * Created: Nov 17, 2006
++ * Copyright: Marvell Corporation.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/interrupt.h>
++#include <linux/delay.h>
++
++#include <sound/driver.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/initval.h>
++
++#include <asm/semaphore.h>
++#include <asm/hardware.h>
++#include <asm/arch/pxa-regs.h>
++#include <asm/arch/gpio.h>
++#include <asm/arch/mfp.h>
++//#include <asm/arch/ipmc.h>
++#include <linux/suspend.h>
++#include <linux/spinlock.h>
++
++//#include <asm/arch/codec/acodec.h>
++//#include <asm/arch/mhn_audio_plat.h>
++
++#define OSCC __REG(0x41350000) /* Oscillator Configuration Register */
++#define AC97_DIV __REG(0x41340014)
++
++#define ALSA_ZY_CARD_DEBUG
++#undef ALSA_ZY_CARD_DEBUG
++
++#define WM_9713_ID 0x4C13 /* this should be the 7E register value */
++
++#ifdef ALSA_ZY_CARD_DEBUG
++#define dbg(format, arg...) printk(KERN_DEBUG format, ##arg)
++#else
++#define dbg(format, arg...)
++#endif
++
++#define DEBUG
++#undef DEBUG
++#ifdef DEBUG
++unsigned int start_time;
++unsigned int end_time;
++unsigned int time;
++#define PRINT_TIME() do {\
++ time = ((end_time > start_time))?\
++ (end_time - start_time)*100/325:\
++ (0xffffffff - start_time + end_time)*100/325;\
++ printk("\n%s:%dus\n", __FUNCTION__, time);\
++} while(0)
++#endif
++
++
++
++
++/* 9713 specific
++ * Register Name Index
++ */
++#define RESET 0X00
++#define SPEAKER_VOLUME 0X02
++#define HEADPHONE_VOLUME 0X04
++#define OUT3_OUT4_VOLUME 0X06
++#define MONOVOL_MONOINPGA_ROUTE 0X08
++#define LINE_IN_PGA_VOL_ROUTE 0X0A
++#define DAC_PGA_VOL_ROUTE 0X0C
++#define MIC_PGA_VOLUME 0X0E
++#define MIC_ROUTING 0X10
++#define REC_PGA_VOL 0X12
++#define REC_ROUTE_MUX_SEL 0X14
++#define PCBEEP_VOL_ROUTE 0X16
++#define VXDAC_VOLUME_ROUTE 0X18
++#define AUX_DAC_VOL_ROUTE 0X1A
++#define OUTPUT_PGA_MUX 0X1C
++#define DAC_3D_CTRL_INV_MUX_SEL 0X1E
++#define DAC_TONE_CTRL 0X20
++#define MIC_BIAS 0X22
++#define OUTPUT_VOL_MAPPING_JACK 0X24
++#define POWERDOWN_CTRL_STAT 0X26
++#define EXTENDED_AUD_ID 0X28
++#define EXTENDED_AUD_STAT_CTRL 0X2A
++#define AUDIO_DAC_RATE 0X2C
++#define AUX_DAC_RATE 0X2E
++#define AUDIO_ADC_RATE 0X32
++#define PCM_CODEC_CTRL 0X36
++#define SPDIF_CTRL 0X3A
++#define POWER_DOWN_1 0X3C
++#define POWER_DOWN_2 0X3E
++#define GENERAL_PURPOSE_WM_13 0X40
++#define FAST_POWERUP_CTRL 0X42
++#define MCLK_PLL_CTRL_1 0X44
++#define MCLK_PLL_CTRL_2 0X46
++#define GPIO_PIN_CFG 0X4C
++#define GPIO_PIN_POL_TYPE 0X4E
++#define GPIO_PIN_STICKY 0X50
++#define GPIO_PIN_WAKEUP 0X52
++#define GPIO_PIN_STATUS 0X54
++#define GPIO_PIN_SHARING 0X56
++#define GPIO_PULL_UP_DOWN_CTRL 0X58
++#define ADD_FUNC_1 0X5A
++#define ADD_FUNC_2 0X5C
++#define ALC_CTRL 0X60
++#define ALC_NOISE_GATE_CTRL 0X62
++#define AUX_DAC_INPUT_CTRL 0X64
++#define TEST_REG_1 0X68
++#define TEST_REG_2 0X6A
++#define TEST_REG_3 0X6C
++#define TEST_REG_4 0X6E
++#define DIGITIZER_1_WM13 0x74
++#define DIGITIZER_2_WM13 0x76
++#define DIGITIZER_3_WM13 0x78
++#define DIGITIZER_READ_BACK 0x7a
++#define VENDOR_ID1 0x7c
++#define VENDOR_ID2 0x7e
++
++#define ZY_TOUCH_SAMPLE_X 1
++#define ZY_TOUCH_SAMPLE_Y 2
++
++#define ZY_EVENT_TYPE_NONE 0
++#define ZY_EVENT_TYPE_PDN 1
++
++
++typedef enum _zy_acodec_error_t {
++ ZY_ACODEC_SUCCESS = 0, /* successful completion of a function */
++ ZY_ACODEC_GENERAL_SW_ERR, /* null pointer to registers or other software error */
++ ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT, /* time-out for waiting for respponse */
++ ZY_ACODEC_SAMPLERATE_NOT_SUPPORTED, /* the sample rate is not supported either in controller or codec */
++ ZY_ACODEC_FEATURE_NO_SUPPORTED, /* this codec feature is not supported */
++ ZY_ACODEC_GENERAL_HW_ERR ,/* other hardware error besides time out */
++ ZY_ACODEC_ROUTE_NO_SUPPORTED, /* the codec can not set the route required */
++ ZY_ACODEC_SLEEP /* the codec is sleep */
++} zy_acodec_error_t;
++
++typedef unsigned int zy_acodec_device_id_t;
++
++typedef enum _codec_state {
++ ZY_CODEC_SLEEP = 0,
++ ZY_CODEC_WAKEUP = 1
++} acodec_state_t;
++
++typedef enum {
++ ZY_FM = 0,
++ ZY_MIC1 = 1,
++ ZY_MIC2 = 2,
++ ZY_SPEAKER =3,
++ ZY_HEADSET =4,
++ ZY_HANDSET =5,
++} vol_port_type_t;
++
++typedef struct _context_t {
++ int use_count; /* probe/remove and suspend/resume usage count, sync among multiple devices */
++ zy_acodec_device_id_t acodec_id;/* - an ID that uniquely identifies the codec to be used */
++ unsigned long init_number; /* used by driver to track whether it is inited or not */
++
++ void *p_voice_reg; /* pointer to Monahans registers that has PCM interface to codec */
++ void *p_hifi_reg; /* pointer to Monahans registers that has hifi interface to codec */
++ void *p_ctrl_reg; /* pointer to Monahans registers that has control interface to codec */
++ int *p_ost_regs; /* needed for time out */
++ void *p_save_memory; /* pointer to a memory region to save context while suspend */
++ void *p_zy_scenario; /* pointer to the scenario data structure */
++ long u_max_read_write_time_out_ms;/* input the max time to wait in milliseconds before giving up on a read or write operation */
++ long u_max_setup_time_out_ms; /* input the maximum time in milliseconds to wait during initial setup of the ACODEC controller and codec */
++
++ /* member functions these pointers must be set by */
++ zy_acodec_error_t (* g_pfn_codec_specific_init) (struct _context_t *p_device_context);
++ zy_acodec_error_t (* g_pfn_codec_specific_dinit) (struct _context_t *p_device_context);
++ zy_acodec_error_t (* g_pfn_acodec_read) (struct _context_t *p_dev_context, unsigned short reg_addr, unsigned short *p_reg_value);
++ zy_acodec_error_t (* g_pfn_acodec_write) (struct _context_t *p_dev_context, unsigned short reg_addr, unsigned short reg_value);
++
++ /* add for route */
++ zy_acodec_error_t (* g_pfn_set_route) (struct _context_t *p_device_context, unsigned short * rout_map ,unsigned short* current_map);
++ /* add for sleep the codec */
++ zy_acodec_error_t (* g_pfn_sleep_codec) (struct _context_t *p_device_context);
++ /* add for Wake up the codec */
++ zy_acodec_error_t (* g_pfn_wake_codec) (struct _context_t *p_device_context);
++ /* add for get codec state */
++ zy_acodec_error_t (* g_pfn_get_state) (struct _context_t *p_device_context, acodec_state_t *p_state);
++ /* add for volume */
++ zy_acodec_error_t (* g_pfn_get_vol)(struct _context_t *p_device_context, vol_port_type_t port, unsigned short *gain_in_db);
++ zy_acodec_error_t (* g_pfn_set_vol)(struct _context_t *p_device_context, vol_port_type_t port, unsigned short gain_in_db);
++
++ void (* g_pfn_get_event)(struct _context_t *p_device_context, unsigned char * event_type);
++ void (* g_pfn_event_ack)(struct _context_t *p_device_context, unsigned char event_type);
++ zy_acodec_error_t (* g_pfn_enable_touch)(struct _context_t *p_device_context);
++ zy_acodec_error_t (* g_pfn_disable_touch)(struct _context_t *p_device_context);
++} zy_acocec_context_t, *p_zy_acocec_context_t;
++
++
++
++
++
++static p_zy_acocec_context_t p_zy_codec_ctxt = NULL;
++
++#include <linux/input.h>
++//#include <asm/arch/codec/wm9713.h>
++
++#define PEN_DOWN 1
++#define PEN_UP 0
++#define TS_SAMPLE_INTERVAL 1
++
++typedef struct {
++ struct input_dev *idev;
++ struct timer_list *timer;
++ int use_count;
++} codec_zy_ts_t;
++
++codec_zy_ts_t codec_zy_ts;
++
++static struct input_dev *codec_zy_ts_input;
++
++#ifdef CONFIG_PM
++static volatile int touch_suspend = 0 ;
++#endif
++
++#define ZY_AC97_CODEC_REGS_NUM 0x40
++
++typedef struct
++{ // Register symbol // Usage
++ volatile unsigned long pocr; // PCM Out Control Register
++ volatile unsigned long picr; // PCM In Control Register
++ volatile unsigned long mccr; // Mic In Control Register
++ volatile unsigned long gcr; // Global Control Register
++ volatile unsigned long posr; // PCM Out Status Register
++ volatile unsigned long pisr; // PCM In Status Register
++ volatile unsigned long mcsr; // Mic In Status Register
++ volatile unsigned long gsr; // Global Status Register
++ volatile unsigned long car; // CODEC Access Register
++ volatile unsigned long pcscr; // PCM Surround Out Control
++ volatile unsigned long pcssr; // PCM Surround Out Status
++ volatile unsigned long pcsdr; // PCM Surround Out Data
++ volatile unsigned long pcclcr; // PCM Center/LFE Out Control
++ volatile unsigned long pcclsr; // PCM Center/LFE Out Status
++ volatile unsigned long pccldr; // PCM Center/LFE Out Data
++ volatile unsigned long reserved1; //
++ volatile unsigned long pcdr; // PCM FIFO Data Register
++ volatile unsigned long reserved2 [0x7]; // 0x4050-0044 through 0x4050-005C
++ volatile unsigned long mcdr; // Mic-in FIFO Data Register
++ volatile unsigned long reserved3 [0x27]; // 0x4050-0064 through 0x4050-00FC
++ volatile unsigned long mocr; // MODEM Out Control Register
++ volatile unsigned long reserved4;
++ volatile unsigned long micr; // MODEM In Control Register
++ volatile unsigned long reserved5;
++ volatile unsigned long mosr; // MODEM Out Status Register
++ volatile unsigned long reserved6;
++ volatile unsigned long misr; // MODEM In Status Register
++ volatile unsigned long reserved7 [0x9]; // 0x4050-011C through 0x4050-013C
++ volatile unsigned long modr; // MODEM FIFO Data Register
++ volatile unsigned long reserved8 [0x2F]; // 0x4050-0144 through 0x4050-01FC
++ // Primary Audio CODEC registers access
++ volatile unsigned long codec_regs_primary_aud [ZY_AC97_CODEC_REGS_NUM];
++ // Secondary ID 01 Audio CODEC registers access
++ volatile unsigned long codec_regs_secondary_aud [ZY_AC97_CODEC_REGS_NUM];
++ // Primary MODEM CODEC registers access
++ volatile unsigned long codec_regs_primary_mdm [ZY_AC97_CODEC_REGS_NUM];
++ // Secondary ID 01 MODEM CODEC registers access
++ volatile unsigned long codec_regs_secondary_mdm [ZY_AC97_CODEC_REGS_NUM];
++ // Secondary ID 10 MODEM CODEC registers access
++ volatile unsigned long codec_regs_third_mdm [ZY_AC97_CODEC_REGS_NUM];
++ // Secondary ID 11 MODEM CODEC registers access
++ volatile unsigned long codec_regs_fouth_mdm [ZY_AC97_CODEC_REGS_NUM];
++ // Secondary ID 10 Audio CODEC registers access
++ volatile unsigned long codec_regs_third_aud [ZY_AC97_CODEC_REGS_NUM];
++ // Secondary ID 11 Audio CODEC registers access
++ volatile unsigned long codec_regs_fouth_aud [ZY_AC97_CODEC_REGS_NUM];
++} zy_ac97_acodec_t, *p_zy_ac97acodec_t ;
++
++
++/* Constants for the Global Control Register and Global Status Register */
++
++// AC97 Global Control Register bit mask constants
++
++#define ZY_AC97_GCR_GIE_MSK (1u << 0 )
++#define ZY_AC97_GCR_COLD_RESET_MSK (1u << 1 )
++#define ZY_AC97_GCR_WARM_RESET_MSK (1u << 2 )
++#define ZY_AC97_GCR_LINK_OFF_MSK (1u << 3 )
++#define ZY_AC97_GCR_PCRSM_IEN_MSK (1u << 4 )
++#define ZY_AC97_GCR_SCRSM_IEN_MSK (1u << 5 )
++#define ZY_AC97_GCR_PCRDY_IEN_MSK (1u << 8 )
++#define ZY_AC97_GCR_SCRDY_IEN_MSK (1u << 9 )
++#define ZY_AC97_GCR_SDONE_IE_MSK (1u << 18)
++#define ZY_AC97_GCR_CDONE_IE_MSK (1u << 19)
++#define ZY_AC97_GCR_nDMAEN_MSK (1u << 24)
++#define ZY_AC97_GCR_CLKBPB_MSK (1u << 31)
++#define ZY_AC97_GCR_FRCRST_MSK (1u << 30)
++// Global Status Register bit mask constants
++
++#define ZY_AC97_GSR_GSCI_MSK (1u << 0 )
++#define ZY_AC97_GSR_MIINT_MSK (1u << 1 )
++#define ZY_AC97_GSR_MOINT_MSK (1u << 2 )
++#define ZY_AC97_GSR_ACOFFD_MSK (1u << 3 )
++#define ZY_AC97_GSR_PIINT_MSK (1u << 5 )
++#define ZY_AC97_GSR_POINT_MSK (1u << 6 )
++#define ZY_AC97_GSR_MINT_MSK (1u << 7 )
++#define ZY_AC97_GSR_PCRDY_MSK (1u << 8 )
++#define ZY_AC97_GSR_SCRDY_MSK (1u << 9 )
++#define ZY_AC97_GSR_PCRSM_MSK (1u << 10)
++#define ZY_AC97_GSR_SCRSM_MSK (1u << 11)
++#define ZY_AC97_GSR_SLT12_BITS_MSK (7u << 12)
++#define ZY_AC97_GSR_RCS_ERR_MSK (1u << 15)
++#define ZY_AC97_GSR_SDONE_MSK (1u << 18)
++#define ZY_AC97_GSR_CDONE_MSK (1u << 19)
++
++
++// Bit mask and values for CAIP bit in car register.
++#define ZY_AC97_CAR_CAIP_MSK (0x1<<0)
++#define ZY_AC97_CAR_CAIP_LOCKED (0x1<<0)
++#define ZY_AC97_CAR_CAIP_CLEAR (0<<0)
++
++/* Constants for FIFO status reporting and control */
++
++// One bit location is used to report FIFO error conditions and clear
++// interrupts on those conditions in the various non-global status registers.
++
++// ZY_AC97_FIFOSTAT_FIFOE is used in:
++ // posr
++ // pisr
++ // mcsr
++ // mosr
++ // misr
++
++#define ZY_AC97_FIFOSTAT_FIFOE (1u << 4)
++#define ZY_AC97_FIFOSTAT_EOC (1u << 3)
++#define ZY_AC97_FIFOSTAT_FSR (1u << 2)
++
++// A different bit location is used to enable or disable interrupts based on
++// FIFO error conditions in the various non-global control registers.
++
++// ZY_AC97_FIFOCTRL_FEIE is used in:
++ // pocr
++ // picr
++ // mccr
++ // mocr
++ // micr
++
++#define ZY_AC97_FIFOCTRL_FEIE (1u << 3)
++#define ZY_AC97_FIFOCTRL_FSRIE (1u << 1)
++
++/*
++*******************************************************************************
++ AC'97 Codec Registers Location and Bit Definition
++*******************************************************************************
++*/
++
++/* */
++
++ // Includes symbolic values for certain proprietary register asssignments
++ // in AC'97 devices that might be used with ZY_AC97.
++
++ // Valid for subset of R 2.1 specification.
++ // Leading "e" in comment means it is an "expanded" register definition as
++ // found in one or more of the Appendices A-D of the R 2.1 specification.
++ // Appendix identifier will immediately follow the "e", such as "eA"
++ // R/O indicates read-only
++ // Registers not supported by the assumed controller will be commented out.
++
++#define ZY_AC97_CR_RESET_ID 0x00 // RESET CODEC TO DEFAULT, get ID info
++#define ZY_AC97_CR_MASTER_VOLUME 0x02 // LINE OUT VOLUME
++#define ZY_AC97_CR_HEADPHONE_VOLUME 0x04 //
++#define ZY_AC97_CR_MASTER_VOLUME_MONO 0x06 //
++#define ZY_AC97_CR_MASTER_TONE_R_L 0x08 //
++#define ZY_AC97_CR_PC_BEEP_VOLUME 0x0A //
++#define ZY_AC97_CR_PHONE_VOLUME 0x0C //
++#define ZY_AC97_CR_MIC_VOLUME 0x0E // micrOPHONE VOLUME/ AGC
++#define ZY_AC97_CR_LINE_IN_VOLUME 0x10 // LINE IN VOLUME
++#define ZY_AC97_CR_CD_VOLUME 0x12 //
++#define ZY_AC97_CR_VIDEO_VOLUME 0x14 //
++#define ZY_AC97_CR_AUX_VOLUME 0x16 //
++#define ZY_AC97_CR_PCM_OUT_VOLUME 0x18 //
++#define ZY_AC97_CR_RECORD_SELECT 0x1A // SELECT LINE IN OR micrOPHONE
++#define ZY_AC97_CR_RECORD_GAIN 0x1C //
++#define ZY_AC97_CR_RECORD_GAIN_MIC 0x1E //
++#define ZY_AC97_CR_GENERAL_PURPOSE 0x20 //
++#define ZY_AC97_CR_CONTROL_3D 0x22 //
++#define ZY_AC97_CR_POWERDOWN_CTRL_STAT 0x26 // POWER MANAGEMENT
++#define ZY_AC97_CR_E_AUDIO_ID 0x28 // eA Extended audio sprt info, R/O
++#define ZY_AC97_CR_E_AUDIO_CTRL_STAT 0x2A // eA Extended audio stat + control
++
++//
++// Audio Sample Rate Control Registers, 0x2C - 0x34
++//
++ // eA PCM Front DAC rate control
++#define ZY_AC97_CR_E_ASR_PCM_FRNT_DAC_RT 0x2C // (output slots 3, 4, 6)
++#define ZY_AC97_CR_E_ASR_PCM_LR_ADC_RT 0x32 // eA PCM L+R ADC rate control (3+4)
++#define ZY_AC97_CR_E_ASR_MIC_ADC_RT 0x34 // eA PCM Mic ADC rate control (5)
++
++
++#define ZY_AC97_CR_E_MDM_GPIO_PIN_STAT 0x54
++//
++// 5Ah-7Ah: Vendor Reserved
++//
++//
++// 7Ch-7Eh: Vendor ID registers. Optional but standardized for Plug'n'Play
++//
++#define ZY_AC97_CR_VENDOR_ID1 0x7C
++#define ZY_AC97_CR_VENDOR_ID2 0x7E
++
++#define ZY_AC97_CR_MAX ZY_AC97_CR_VENDOR_ID2
++
++#define ZY_AC97_CR_END_OF_LIST (ZY_AC97_CR_MAX + 2)
++
++
++
++/* Other Constants */
++
++// For accessing the Codec mixer registers, each increment of one 32-bit word
++// in processor space increments the addressed mixer register by two.
++// This does not cause any ambiguities because only even mixer register
++// addresses are currently supported (AC '97 spec, R 2.2)
++#define ZY_AC97_CODEC_REGS_PER_WORD 2
++
++/* Default timeout and holdtime settings */
++
++// timeout in reading and writing codec registers through AC link
++#define ZY_AC97_RW_TIMEOUT_DEF 200 //unit is us
++
++// timeout in waiting for codec's ready signal during setup process
++#define ZY_AC97_SETUP_TIMEOUT_DEF 500 //unit is us
++
++// timeout in waiting for locking the link successfully
++#define ZY_AC97_LOCK_TIMEOUT_DEF 300 //unit is us
++
++// timeout in shutting down the link
++#define ZY_AC97_LINKOFF_TIMEOUT_DEF 500 //unit is us
++
++// holdtime for keeping nReset signal active(low) in AC link
++#define ZY_AC97_COLD_HOLDTIME 100 //unit is us
++
++/*
++*******************************************************************************
++ ZY AC97 data structure used in function interface
++*******************************************************************************
++*/
++
++typedef struct
++{
++ unsigned long pocr; // PCM Out Control Register
++ unsigned long picr; // PCM In Control Register
++ unsigned long mccr; // Mic In Control Register
++ unsigned long gcr; // Global Control Register
++ unsigned long pcscr; // PCM Surround Out Control
++ unsigned long pcclcr; // PCM Center/LFE Out Control
++ unsigned long mocr; // MODEM Out Control Register
++ unsigned long micr; // MODEM In Control Register
++}zy_ac97_save_context_t;
++
++
++#define AC97_SAVE_CONTEXT_SIZE (sizeof(zy_ac97_save_context_t))
++
++static int zy_ac97_acodec_link_lock(p_zy_ac97acodec_t p_ac97_reg)
++{
++ int status = 1;
++ volatile unsigned long car_tmp;
++
++ car_tmp = p_ac97_reg->car;
++ if (car_tmp & ZY_AC97_CAR_CAIP_MSK) /* "1" in CAIP bit means lock failed. */
++ {
++ status = 0;
++ }
++ return (status);
++}
++
++
++zy_acodec_error_t zy_ac97_acodec_write (zy_acocec_context_t *p_dev_context, unsigned short offset, unsigned short data)
++{
++ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
++ int got_link;
++ unsigned long time_remaining;
++ volatile unsigned long * p_codec_reg;
++ p_zy_ac97acodec_t p_ac97_reg = (p_zy_ac97acodec_t)(p_dev_context->p_ctrl_reg);
++ unsigned long max_rw_time_out_us = (p_dev_context->u_max_read_write_time_out_ms) * 1000;
++
++
++ if(offset == ZY_AC97_CR_E_MDM_GPIO_PIN_STAT)
++ {/* it is a special register and sent out on slot 12 */
++ p_codec_reg = &(p_ac97_reg->codec_regs_primary_mdm[0]);
++ p_codec_reg += offset / ZY_AC97_CODEC_REGS_PER_WORD;
++ /* The data will be sent out on slot 12. */
++ *p_codec_reg = (unsigned long)data;
++ goto done;
++ }
++
++ /* Point to specified register within area mapped to target codec regs */
++ p_codec_reg = &(p_ac97_reg->codec_regs_primary_aud[0]);
++ p_codec_reg += offset / ZY_AC97_CODEC_REGS_PER_WORD;
++
++
++ /* Lock the ACLINK */
++ time_remaining = ZY_AC97_LOCK_TIMEOUT_DEF;
++ do
++ {
++ got_link = zy_ac97_acodec_link_lock(p_ac97_reg);
++ if (0 == got_link) /* 1 usec is a long time. Skip delay if possible. */
++ {
++ udelay(1);
++ }
++ } /* Wait while time remaining and ACLINK not available */
++ while (time_remaining-- && (0 == got_link));
++
++ if (0 == got_link) /* Didn't get the ACLINK */
++ {
++ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
++ printk(KERN_ERR "AC97 Write Link Timeout\n");
++ }
++ else /* We got the link. Perform the write operation and don't wait. */
++ {
++ /* First, clear old write status indication CDONE by writing a ONE to that bit. */
++ p_ac97_reg->gsr = ZY_AC97_GSR_CDONE_MSK;
++
++ *p_codec_reg = (unsigned long)data; /* Now the write! */
++
++ /* Wait until write cycle is complete. There should be a way
++ * to do this speculatively at the beginning of the procedure.
++ * Need to discover it. Too inefficient to always wait.
++ */
++
++ time_remaining = max_rw_time_out_us;
++ do
++ {
++ udelay(1);
++ } /* Wait while time remaining and command I/O still incomplete. */
++ while ( (time_remaining--) && !(p_ac97_reg->gsr & ZY_AC97_GSR_CDONE_MSK));
++ if (!(p_ac97_reg->gsr & ZY_AC97_GSR_CDONE_MSK))
++ {
++ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
++ p_ac97_reg->car = ZY_AC97_CAR_CAIP_CLEAR;
++ }
++ } /* Got AC link */
++
++done:
++ return(status);
++} /* Ac97CtrlCodecWrite() */
++
++#define CKENA __REG(0x4134000C) /* A Clock Enable Register */
++#define CKENB __REG(0x41340010)
++
++zy_acodec_error_t zy_ac97_acodec_read (zy_acocec_context_t *p_dev_context, unsigned short offset, unsigned short *pdata)
++{
++ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
++ int got_link;
++ unsigned long time_remaining;
++ volatile unsigned long * p_codec_reg;
++ p_zy_ac97acodec_t p_ac97_reg = (p_zy_ac97acodec_t)(p_dev_context->p_ctrl_reg);
++ unsigned long max_rw_time_out_us = (p_dev_context->u_max_read_write_time_out_ms) * 1000;
++
++ /* Point to specified register within area mapped to target codec regs */
++ p_codec_reg = &(p_ac97_reg->codec_regs_primary_aud[0]);
++ p_codec_reg += offset / ZY_AC97_CODEC_REGS_PER_WORD;
++
++ /* Lock the ACLINK */
++ time_remaining = ZY_AC97_LOCK_TIMEOUT_DEF;
++ do
++ {
++ got_link = zy_ac97_acodec_link_lock(p_ac97_reg);
++ if (0 == got_link) /* 1 usec is a long time. Skip delay if possible. */
++ {
++ udelay(1);
++ }
++ } /* Wait while time remaining and ACLINK not available */
++ while (time_remaining-- && (0 == got_link));
++
++ if (0 == got_link) /* Didn't get the ACLINK */
++ {
++ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
++ printk(KERN_ERR "AC97 Read Link Timeout\n");
++ }
++ else /* We got the link. Perform the write operation and don't wait. */
++ {
++ /* First, clear old read status indications. */
++ p_ac97_reg->gsr = ZY_AC97_GSR_SDONE_MSK | ZY_AC97_GSR_RCS_ERR_MSK;
++
++ *pdata = (unsigned short)(*p_codec_reg); /* This is THE DUMMY READ. */
++
++ /* Wait for read I/O with codec to complete before doing real read. */
++ time_remaining = max_rw_time_out_us;
++ do
++ {
++ udelay(1);
++ } /* Wait while time remaining and read I/O still incomplete */
++ while( (time_remaining--) && (!(p_ac97_reg->gsr & ZY_AC97_GSR_SDONE_MSK)) );
++
++ if ((p_ac97_reg->gsr & ZY_AC97_GSR_SDONE_MSK) && (!(p_ac97_reg->gsr & ZY_AC97_GSR_RCS_ERR_MSK)) )
++ {
++ if (p_ac97_reg->gsr & ZY_AC97_GSR_RCS_ERR_MSK)
++ {/* timeout indicated by RCS bit */
++ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
++ }
++ /* succeed in reading. clear status bits first. */
++ p_ac97_reg->gsr = ZY_AC97_GSR_SDONE_MSK | ZY_AC97_GSR_RCS_ERR_MSK;
++ *pdata = (unsigned short)(*p_codec_reg); /* THE REAL READ. */
++ if (*pdata == 0xffff)
++ {/* timeout indicated by returned value */
++ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
++ }
++ /* check later: is second waiting really needed? */
++ time_remaining = max_rw_time_out_us;
++ do
++ {
++ udelay(1);
++ } /* Wait while time remaining and read I/O still incomplete */
++ while( (time_remaining--) && (!(p_ac97_reg->gsr & ZY_AC97_GSR_SDONE_MSK)) );
++ //printk(KERN_ERR "AC97 Read Result %d\n", (p_ac97_reg->gsr & ZY_AC97_GSR_SDONE_MSK) );
++ }
++ else /* failed */
++ {
++ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
++ p_ac97_reg->car = ZY_AC97_CAR_CAIP_CLEAR;
++ //printk(KERN_ERR "AC97 Read Link Timeout2 %x %x %x\n", CKENA, OSCC, CKENB);
++ } /* else (OK to do real read) */
++
++ } /* else (We got the link. Perform the read operations.) */
++
++ return (status);
++}
++
++
++
++zy_acodec_error_t zy_acodec_get_adc_sample(zy_acocec_context_t *p_device_context, unsigned short *p_sample_data, unsigned short adc_type, int *p_pen_down)
++{
++ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
++ unsigned short value;
++ unsigned long wait;
++
++ if (adc_type == ZY_TOUCH_SAMPLE_X)
++ {
++ value = 0x202;
++ }
++ else
++ {/* Y sample */
++ value = 0x204;
++ }
++
++ status = zy_ac97_acodec_write(p_device_context, DIGITIZER_1_WM13, value);
++
++ wait = 0;
++ do
++ {
++ status = zy_ac97_acodec_read(p_device_context, DIGITIZER_1_WM13, &value);
++ if ( !(value & 0x200 ) )
++ {
++ break;
++ }
++ }while ( 100 > wait++ );
++
++ status = zy_ac97_acodec_read(p_device_context, DIGITIZER_READ_BACK, &value);
++ if (value & 0x8000)
++ {/* means pen down */
++ *p_pen_down = 1;
++ }
++ else
++ {
++ *p_pen_down = 0;
++ }
++ *p_sample_data = value & 0xfff;
++
++ return status;
++}
++
++
++
++/*
++ * add a touch event
++ */
++static int codec_zy_ts_evt_add(codec_zy_ts_t* ts, u16 pressure, u16 x, u16 y)
++{
++ /* add event and remove adc src bits */
++ static u16 pre_press = 0;
++
++ input_report_abs(ts->idev, ABS_X, x & 0xfff);
++ input_report_abs(ts->idev, ABS_Y, y & 0xfff);
++ if (pressure == pre_press){
++ pressure--;
++ }
++ pre_press = pressure;
++ input_report_abs(ts->idev, ABS_PRESSURE, pressure & 0xfff);
++ input_sync(ts->idev);
++#ifdef CONFIG_IPM
++ ipm_event_notify(IPM_EVENT_UI, IPM_EVENT_DEVICE_TSI, NULL, 0);
++#endif
++ return 0;
++}
++
++/*
++ * add a pen up event
++ */
++static void codec_zy_ts_evt_release(codec_zy_ts_t* ts)
++{
++ input_report_abs(ts->idev, ABS_PRESSURE, 0);
++ input_sync(ts->idev);
++
++#ifdef CONFIG_IPM
++ ipm_event_notify(IPM_EVENT_UI, IPM_EVENT_DEVICE_TSI, NULL, 0);
++#endif
++ p_zy_codec_ctxt->g_pfn_event_ack(p_zy_codec_ctxt,ZY_EVENT_TYPE_PDN);
++}
++
++/*
++ * Kill the touchscreen thread and stop
++ * the touch digitiser.
++ */
++static void codec_zy_ts_input_close(struct input_dev *idev)
++{
++ codec_zy_ts_t *ts = (codec_zy_ts_t *) &codec_zy_ts;
++
++#ifdef CONFIG_PM
++ if(touch_suspend){
++ pr_info("touch is suspended!\n");
++ return -1;
++ }
++#endif
++ dbg("close ts input!\n");
++ if (--ts->use_count == 0) {
++ del_timer(ts->timer);
++ if (ts->timer != NULL)
++ kfree(ts->timer);
++ p_zy_codec_ctxt->g_pfn_disable_touch(p_zy_codec_ctxt);
++ }
++}
++
++/*
++ * Sample the touchscreen
++ */
++int ac97_poll_touch(codec_zy_ts_t *ts)
++{
++ unsigned short x=0, y=0;
++ int if_down= 0;
++ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
++
++#ifdef DEBUG
++ start_time = OSCR;
++#endif
++
++ /* get x value */
++ status = zy_acodec_get_adc_sample(p_zy_codec_ctxt, &x, ZY_TOUCH_SAMPLE_X, &if_down);
++ if (ZY_ACODEC_SUCCESS != status ){
++ return -EIO;
++ }
++ dbg("x:0x%x\n", x);
++
++ /* the pen is up */
++ if (1 != if_down){
++ return PEN_UP;
++ }
++
++ /* get y vaule */
++ status = zy_acodec_get_adc_sample(p_zy_codec_ctxt, &y, ZY_TOUCH_SAMPLE_Y, &if_down);
++ if (ZY_ACODEC_SUCCESS != status ){
++ return -EIO;
++ }
++ dbg("y:0x%x\n",y);
++
++ /* the pen is up */
++ if (1 != if_down){
++ return PEN_UP;
++ }
++
++ /* the pen is down, can not get the pressure value,
++ * so if pen is down, give the max pressure value
++ */
++ codec_zy_ts_evt_add(ts,0xfff, x, y);
++
++#ifdef DEBUG
++ end_time = OSCR;
++ PRINT_TIME();
++#endif
++
++ return PEN_DOWN;
++}
++
++static void touch_timer_handler(unsigned long unused)
++{
++ int event;
++ codec_zy_ts_t *ts = &codec_zy_ts;
++
++ event = ac97_poll_touch(ts);
++
++ if (event == PEN_DOWN) {
++ dbg("pen down!\n");
++ ts->timer->expires = jiffies + TS_SAMPLE_INTERVAL;
++ add_timer(ts->timer);
++ } else if(event == PEN_UP) {
++ dbg("pen up!\n");
++ codec_zy_ts_evt_release(ts);
++ } else if(event == -EIO) {
++ printk(KERN_ERR "Access touch interface error!\n");
++ }
++ return;
++}
++
++static zy_acodec_error_t zy_ac97_acodec_cold_reset(zy_acocec_context_t * p_ac97_ctxt)
++{
++ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
++ p_zy_ac97acodec_t p_ac97 = (p_zy_ac97acodec_t)(p_ac97_ctxt->p_ctrl_reg);
++ int pri_codec_ready;
++ unsigned long time_remaining;
++
++ p_ac97->gcr = 0;
++ p_ac97->gcr |= ZY_AC97_GCR_CLKBPB_MSK;
++ /* Hold reset active for a minimum time */
++ udelay(ZY_AC97_COLD_HOLDTIME);
++ p_ac97->gcr &= ~ZY_AC97_GCR_CLKBPB_MSK;
++
++ /* Deactivate cold reset condition */
++ p_ac97->gcr |= (ZY_AC97_GCR_COLD_RESET_MSK | ZY_AC97_GCR_WARM_RESET_MSK);
++
++
++ pri_codec_ready = 0;
++ time_remaining = (p_ac97_ctxt->u_max_setup_time_out_ms) * 10;
++ do
++ {
++ udelay(1);
++ if (p_ac97->gsr & ZY_AC97_GSR_PCRDY_MSK)
++ pri_codec_ready = 1;
++ }
++ while (time_remaining-- && (pri_codec_ready == 0));
++
++ /* Timeout status if some of the devices weren't ready. */
++ if (pri_codec_ready == 0)
++ {
++ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
++ }
++
++ return (status);
++}
++
++
++zy_acodec_error_t zy_ac97_acodec_init(zy_acocec_context_t *p_ac97_ctxt)
++{
++ zy_acodec_error_t status ;
++
++ status = zy_ac97_acodec_cold_reset(p_ac97_ctxt);
++
++ return (status);
++}
++
++
++/*
++ * Start the touchscreen thread and
++ * the touch digitiser.
++ */
++static int codec_zy_ts_input_open(struct input_dev *idev)
++{
++ codec_zy_ts_t *ts = (codec_zy_ts_t *) &codec_zy_ts;
++
++#ifdef CONFIG_PM
++ if(touch_suspend){
++ pr_info("touch is suspended!\n");
++ return -1;
++ }
++#endif
++
++ if (ts->use_count++ > 0)
++ return 0;
++
++ dbg("Touch is opened. Use count: %d\n", ts->use_count);
++ ts->idev = idev;
++ ts->timer = kmalloc(sizeof(struct timer_list), GFP_KERNEL);
++ if (!ts->timer) {
++ printk(KERN_ERR "Alloc memory error for timer!\n");
++ return -ENOMEM;
++ }
++
++ init_timer(ts->timer);
++ ts->timer->function = touch_timer_handler;
++ ts->timer->data = 0;
++ p_zy_codec_ctxt->g_pfn_enable_touch(p_zy_codec_ctxt);
++
++ return 0;
++}
++
++/*
++ * initilze the pxa touch screen
++ */
++static int alsa_ts_init( void )
++{
++ codec_zy_ts_t* ts = &codec_zy_ts;
++
++ memset(ts, 0, sizeof(codec_zy_ts_t));
++
++ codec_zy_ts_input = input_allocate_device();
++ if (!codec_zy_ts_input)
++ return -ENOMEM;
++
++
++ /* tell input system what we events we accept and register */
++ codec_zy_ts_input->name = "codec zy touchscreen";
++ codec_zy_ts_input->open = codec_zy_ts_input_open;
++ codec_zy_ts_input->close = codec_zy_ts_input_close;
++ __set_bit(EV_ABS, codec_zy_ts_input->evbit);
++ __set_bit(ABS_X, codec_zy_ts_input->absbit);
++ __set_bit(ABS_Y, codec_zy_ts_input->absbit);
++ __set_bit(ABS_PRESSURE, codec_zy_ts_input->absbit);
++ input_register_device(codec_zy_ts_input);
++
++ return 0;
++}
++
++static irqreturn_t pxa_touch_irq(int irq, void *dev)
++{
++ unsigned char event_type;
++
++ //printk(KERN_ERR "%s: enter codec event handler\n", __FUNCTION__);
++
++ dbg("%s: enter codec event handler\n", __FUNCTION__);
++ p_zy_codec_ctxt->g_pfn_get_event(p_zy_codec_ctxt, &event_type);
++ switch (event_type) {
++ case ZY_EVENT_TYPE_PDN:
++ {
++ codec_zy_ts_t *ts = &codec_zy_ts;
++ /*if the touch is not open need not acknowledge the event*/
++ if (ts->use_count <= 0)
++ break;
++ ts->timer->expires = jiffies + TS_SAMPLE_INTERVAL;
++ add_timer(ts->timer);
++ break;
++ }
++ default:
++ printk("unsupported codec event:0x%x\n", event_type);
++ }
++
++ return IRQ_HANDLED;
++}
++
++
++
++
++
++
++
++
++
++static mfp_cfg_t extra_cfg[] = {
++ MFP_CFG_X(GPIO17, AF3, DS03X, PULL_LOW),
++ MFP_CFG_X(GPIO25, AF0, DS01X, PULL_LOW),
++};
++
++#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x)
++
++extern void dump_mfp(void);
++
++zy_acodec_error_t zy_ac97_acodec_mfp_init(zy_acocec_context_t *p_device_context)
++{
++ unsigned short codec_id;
++
++ //mhn_mfp_set_afds(MFP_RSVD_AC97_SDATA_IN_0, MFP_AF0, MFP_DS03X);
++ //enable_ac97_pins();
++ zy_ac97_acodec_init(p_device_context);
++ if (zy_ac97_acodec_read(p_device_context, 0x0, &codec_id)){
++
++ /*
++ * there is a bug on MonahansL/MonhansPL PC card: AC97_SDATA_IN is not connected to CODEC
++ * ECO 72: Connect PWM_0(MFP_RSVD_AC97_SDATA_IN_0) to CODEC as AC97_SDATA_IN
++ */
++
++ //mhn_mfp_set_afds(MFP_RSVD_AC97_SDATA_IN_0, MFP_RSVD_AC97_SDATA_IN_0_AF, MFP_DS03X);
++ //mhn_mfp_set_afds(MFP_AC97_SDATA_IN_0, MFP_AF0, MFP_DS01X);
++
++ gpio_direction_output(mfp_to_gpio(MFP_PIN_GPIO17), 0);
++ pxa3xx_mfp_config(ARRAY_AND_SIZE(extra_cfg));
++ gpio_direction_input(mfp_to_gpio(MFP_PIN_GPIO25));
++ }
++
++
++ return ZY_ACODEC_SUCCESS;
++}
++
++#define ZY_AC97_WM9713_GPIO_PIN_PDN ( 0x1 << 13 ) /* Pen down */
++
++/*power enable bit in 3ch and 3eh */
++/*3ch */
++#define ZY_AC97_9713_PWR_PADCPD ( 0x1 << 15 )
++#define ZY_AC97_9713_PWR_VMID ( 0x1 << 14 )
++#define ZY_AC97_9713_PWR_TSHUT ( 0x1 << 13 )
++#define ZY_AC97_9713_PWR_VXDAC ( 0x1 << 12 )
++#define ZY_AC97_9713_PWR_AUXDAC ( 0x1 << 11 )
++#define ZY_AC97_9713_PWR_MBIAS ( 0x1 << 10 )
++#define ZY_AC97_9713_PWR_PLL ( 0x1 << 9 )
++#define ZY_AC97_9713_PWR_DACL ( 0x1 << 7 )
++#define ZY_AC97_9713_PWR_DACR ( 0x1 << 6 )
++#define ZY_AC97_9713_PWR_ADCL ( 0x1 << 5 )
++#define ZY_AC97_9713_PWR_ADCR ( 0x1 << 4 )
++#define ZY_AC97_9713_PWR_HPLX ( 0x1 << 3 )
++#define ZY_AC97_9713_PWR_HPRX ( 0x1 << 2 )
++#define ZY_AC97_9713_PWR_SPKX ( 0x1 << 1 )
++#define ZY_AC97_9713_PWR_MX ( 0x1 << 0 )
++
++/*3EH */
++#define ZY_AC97_9713_PWR_MCD ( 0x1 << 15 )
++#define ZY_AC97_9713_PWR_MICBIAS ( 0x1 << 14 )
++#define ZY_AC97_9713_PWR_MONO ( 0x1 << 13 )
++#define ZY_AC97_9713_PWR_OUT4 ( 0x1 << 12 )
++#define ZY_AC97_9713_PWR_OUT3 ( 0x1 << 11 )
++#define ZY_AC97_9713_PWR_HPL ( 0x1 << 10 )
++#define ZY_AC97_9713_PWR_HPR ( 0x1 << 9 )
++#define ZY_AC97_9713_PWR_SPKL ( 0x1 << 8 )
++#define ZY_AC97_9713_PWR_SPKR ( 0x1 << 7 )
++#define ZY_AC97_9713_PWR_LL ( 0x1 << 6 )
++#define ZY_AC97_9713_PWR_LR ( 0x1 << 5 )
++#define ZY_AC97_9713_PWR_MOIN ( 0x1 << 4 )
++#define ZY_AC97_9713_PWR_MA ( 0x1 << 3 )
++#define ZY_AC97_9713_PWR_MB ( 0x1 << 2 )
++#define ZY_AC97_9713_PWR_MPA ( 0x1 << 1 )
++#define ZY_AC97_9713_PWR_MPB ( 0x1 << 0 )
++
++
++void zy_wm9713_get_event(zy_acocec_context_t *p_device_context, unsigned char * event_type)
++{
++ unsigned short event_state = 0;
++ zy_ac97_acodec_read(p_device_context, GPIO_PIN_STATUS, &event_state);
++ if(event_state & ZY_AC97_WM9713_GPIO_PIN_PDN){
++ *event_type = ZY_EVENT_TYPE_PDN;
++ return;
++ }
++ return;
++}
++
++void zy_wm9713_event_ack(zy_acocec_context_t *p_device_context, unsigned char event_type)
++{
++ unsigned short event_state = 0;
++ zy_ac97_acodec_read(p_device_context, GPIO_PIN_STATUS, &event_state);
++ if( event_type == ZY_EVENT_TYPE_PDN){
++ zy_ac97_acodec_write(p_device_context,
++ GPIO_PIN_STATUS,
++ (event_state & (~ZY_AC97_WM9713_GPIO_PIN_PDN)));
++ }
++
++ zy_ac97_acodec_read(p_device_context, GPIO_PIN_STATUS, &event_state);
++ return;
++}
++
++static void * p_saved_memory = NULL;
++static void * p_zy_scenario = NULL;
++static p_zy_acocec_context_t p_zy_ctxt = NULL;
++
++#define WM9713_SAVE_REGISTER_NO (64-11)
++typedef struct {
++ unsigned short wm9713RegisterContext [WM9713_SAVE_REGISTER_NO + 1]; /* Fixed (data misalignment error) */
++}ZY_9713_CONTEXT_SAVE_T;
++
++
++/**
++ * alsa_prepare_for_zy - create and initialize the p_zy_acocec_context_t
++ * open the clock of data link
++ * @p_p_zy_ctxt: return the data structure p_zy_acocec_context_t
++ * return: 0 success ; -ENOMEM
++ **/
++int alsa_prepare_for_zy(p_zy_acocec_context_t * p_p_zy_ctxt)
++{
++ if (p_zy_ctxt) {
++ p_zy_ctxt->use_count++;
++ *p_p_zy_ctxt = p_zy_ctxt;
++ return 0;
++ }
++
++ p_zy_ctxt = kzalloc(sizeof(zy_acocec_context_t), GFP_KERNEL);
++ if (!p_zy_ctxt)
++ return -ENOMEM;
++
++ /* enable CLK_POUT as CODEC clock input */
++ OSCC |= 0x800;
++
++ p_saved_memory = kzalloc(sizeof(ZY_9713_CONTEXT_SAVE_T) +
++ sizeof(zy_ac97_save_context_t), GFP_KERNEL);
++ if (NULL == p_saved_memory) {
++ if (p_zy_ctxt)
++ kfree(p_zy_ctxt);
++ return -ENOMEM;
++ }
++
++ p_zy_ctxt->acodec_id = (zy_acodec_device_id_t) (WM_9713_ID);
++ p_zy_ctxt->use_count++;
++ /*
++ p_zy_ctxt->pMfpRegBase = (unsigned long) (MFP_BASE);
++ p_zy_ctxt->pMfpRmDb = ZY_MFP_RM_DATABASE;
++ p_zy_ctxt->p_ost_regs = OST_BASE;
++ */
++ p_zy_ctxt->p_voice_reg = NULL;
++ p_zy_ctxt->p_hifi_reg = (void *) (&POCR);
++ p_zy_ctxt->p_ctrl_reg = (void *) (&POCR);
++ p_zy_ctxt->u_max_read_write_time_out_ms = ZY_AC97_RW_TIMEOUT_DEF;
++ p_zy_ctxt->u_max_setup_time_out_ms = ZY_AC97_SETUP_TIMEOUT_DEF;
++ p_zy_ctxt->p_save_memory = p_saved_memory;
++ p_zy_ctxt->p_zy_scenario = p_zy_scenario;
++// pxa_set_cken(24, 1);
++ CKENA |= (1 << 24);
++ AC97_DIV = 1625<<12 | 128;
++#ifdef DEBUG_ALSA_ZY
++ debug_pac97ctxt = p_zy_ctxt;
++ misc_register(&audio_dev);
++#endif
++
++ (*p_p_zy_ctxt) = p_zy_ctxt;
++
++ return 0;
++}
++
++
++/* this is platform specific */
++/* do later: not to enable recording route and playback route in this function,
++ * leave it to driver to call other function
++ */
++zy_acodec_error_t zy_wm9713_specific_init (zy_acocec_context_t *p_device_context)
++{
++
++ unsigned short value;
++
++ /* this assumes that the aclink is initialized wait some time and then
++ * do a warm reset to enabled the ACLINK, required for wm9713
++ * (not wm9712 or ucb1400)
++ */
++
++ /* pay attention: whether the workaround is still needed? */
++ p_zy_ac97acodec_t p_ac97_reg = (p_zy_ac97acodec_t)(p_device_context->p_ctrl_reg);
++
++ p_ac97_reg->gcr |= ZY_AC97_GCR_WARM_RESET_MSK;
++
++ mdelay(5);
++
++ /* power on all the necessary unit */
++ zy_ac97_acodec_write(p_device_context,POWERDOWN_CTRL_STAT, 0x000); /*26*/
++ /* open left headphone mixer */
++ /* open right headphone mixer */
++ /* open right/left dac */
++ /* open right/left adc */
++ /* open temperature sensor */
++ /* enable reference generator */
++ zy_ac97_acodec_write(p_device_context,POWER_DOWN_1, 0xda00); /*3c */
++ /* open microphone bias */
++ /* open HPL output PGA */
++ /* open HPR output PGA */
++ /* open mic PGA MA */
++ /* open mic pre-amp MPA */
++ /* if here we enable SPKL and SPKR PGA, then Touch screen will doesn't work */
++ zy_ac97_acodec_write(p_device_context,POWER_DOWN_2,0xb9f5); /*3e */
++
++ /* recording route and microphone input */
++ /* microphone selection, now fixed to MIC1 input and mic bias output */
++ /* MIC1 only, MICBIAS enable */
++ zy_ac97_acodec_write (p_device_context, MIC_BIAS, 0xC440); /*0x22h*/
++
++ /* mic pga setting to mixer (side tone) */
++ /* comment the below code to make MICA/B play back volume gain + 0db */
++ /* zy_ac97_acodec_write (p_device_context, MIC_PGA_VOLUME, 0x0000); */ /*0x0eh*/
++
++ /* recording side tone and ADC boost, now fixed to default (14h) */
++ /* recording volume 0dB */
++ zy_ac97_acodec_write(p_device_context, REC_PGA_VOL, 0x0); /*12*/
++
++ /* hifi playback route and output mixer */
++ /* by default, fixed to enable headphone only */
++
++ /* comment the below code to make SPEAKER default MUTE */
++ zy_ac97_acodec_write (p_device_context, SPEAKER_VOLUME, 0x0); /*02*/
++
++ /* comment the below code to make OUT3_OUT4 default MUTE */
++ /* zy_ac97_acodec_write (p_device_context, OUT3_OUT4_VOLUME, 0x8000); */ /*06*/
++
++ /* remove all the mute bit volume gain + 0db */
++ zy_ac97_acodec_write(p_device_context, HEADPHONE_VOLUME, 0x0); /*04*/
++
++ /* DAC route */
++ /* open DAC to headphone mixer path */
++ /* left DAC gain +0db */
++ /* right DAC gain +0db */
++ zy_ac97_acodec_write(p_device_context, DAC_PGA_VOL_ROUTE,0x0808); /*0c*/
++
++ /* out3 configure, invert to HPMIXR */
++ /* zy_ac97_acodec_write(p_device_context,DAC_3D_CTRL_INV_MUX_SEL, 0x8000); */ /*1e*/
++
++ /* output control */
++ /* select HPMIXR HPMIXL out */
++ /* other out are all VIM */
++ zy_ac97_acodec_write(p_device_context,OUTPUT_PGA_MUX, 0x9BA8); /*1c*/
++
++ /* set sample rates */
++ /* enable variable rate conversion */
++ zy_ac97_acodec_write(p_device_context, EXTENDED_AUD_STAT_CTRL , 0x1); /*2a*/
++ /* DAC 44kHZ */
++ zy_ac97_acodec_write(p_device_context,AUDIO_DAC_RATE,0xac44); /*2c*/
++ /* ADC 16KHZ */
++ zy_ac97_acodec_write(p_device_context,AUDIO_ADC_RATE,0x3E80); /*32*/
++
++ /* clock scheme, use external clock, it is 24MHZ from MCLK_A */
++
++
++ zy_ac97_acodec_read(p_device_context, MCLK_PLL_CTRL_1, &value);
++ zy_ac97_acodec_write(p_device_context, MCLK_PLL_CTRL_1, value | 0x2);
++
++ return ZY_ACODEC_SUCCESS;
++}
++
++zy_acodec_error_t zy_wm9713_specific_deinit (zy_acocec_context_t *p_device_context)
++{/* do later: shut down all power */
++ unsigned short value = 0;
++
++ /* close the power of all units */
++ zy_ac97_acodec_write(p_device_context, POWER_DOWN_1, 0xffff);
++ zy_ac97_acodec_write(p_device_context, POWER_DOWN_2, 0xffff);
++ zy_ac97_acodec_read(p_device_context, POWER_DOWN_1, &value);
++ value &= ~(ZY_AC97_9713_PWR_MBIAS);
++ zy_ac97_acodec_write(p_device_context, POWER_DOWN_1, value);
++
++ return ZY_ACODEC_SUCCESS;
++}
++
++zy_acodec_error_t zy_acodec_set_pen_down_interrupt(zy_acocec_context_t *p_device_context, int enable)
++{/* disable/enable pen down interrupt in the codec. This function is not implemented for Wm9713 */
++ /* because the pen down detection could not be disabled in codec */
++ return ZY_ACODEC_SUCCESS;
++}
++
++zy_acodec_error_t zy_wm9713_enable_touch(zy_acocec_context_t *p_device_context)
++{/* enable touch functionality in the codec */
++ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
++ unsigned short value;
++
++ /* power setting */
++ status = zy_ac97_acodec_read(p_device_context, POWER_DOWN_1, &value);
++ value &= ~(ZY_AC97_9713_PWR_PADCPD);
++ status = zy_ac97_acodec_write(p_device_context, POWER_DOWN_1, value);
++
++ /* basic touch setting */
++ status = zy_ac97_acodec_write(p_device_context, DIGITIZER_3_WM13, 0xc008);
++ status = zy_ac97_acodec_write(p_device_context, DIGITIZER_2_WM13, 0x6);
++
++
++ /* 9713 powerdown virtual gpio setting (polarity, sticky, wakeup) */
++ /* 9713 gpio 2(pin45) route to IRQ */
++ /* Notes: Can use defaults for IRQ polarity, PENDOWN polarity in IRQ, */
++ /* sticky for PENDOWN in IRQ and wakeup for PENDOWN. */
++ status = zy_ac97_acodec_read(p_device_context, GPIO_PIN_CFG, &value);
++ value &= ~(0x4);
++ status = zy_ac97_acodec_write(p_device_context, GPIO_PIN_CFG, value);
++
++ status = zy_ac97_acodec_read(p_device_context, GPIO_PIN_SHARING, &value);
++ value &= ~(0x4);
++ status = zy_ac97_acodec_write(p_device_context, GPIO_PIN_SHARING, value);
++
++ status = zy_ac97_acodec_read(p_device_context, GPIO_PIN_WAKEUP, &value);
++ value |= (0x2000);
++ status = zy_ac97_acodec_write(p_device_context, GPIO_PIN_WAKEUP, value);
++
++ status = zy_ac97_acodec_read(p_device_context, GPIO_PIN_STICKY, &value);
++ value |= (0x2000);
++ status = zy_ac97_acodec_write(p_device_context, GPIO_PIN_STICKY, value);
++
++ return status;
++}
++
++zy_acodec_error_t zy_wm9713_disable_touch(zy_acocec_context_t *p_device_context)
++{/* disable touch functionality in the codec */
++ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
++ unsigned short value;
++
++ /* power setting */
++ status = zy_ac97_acodec_read(p_device_context, POWER_DOWN_1, &value);
++ value |= (ZY_AC97_9713_PWR_PADCPD);
++ status = zy_ac97_acodec_write(p_device_context, POWER_DOWN_1, value);
++
++ return status;
++}
++zy_acodec_error_t zy_ac97_acodec_mfp_deinit(zy_acocec_context_t *p_device_context)
++{/* do later: free all MFP resources. */
++ return ZY_ACODEC_SUCCESS;
++}
++
++static zy_acodec_error_t zy_ac97_acodec_shut_down_aclink(p_zy_ac97acodec_t p_ac97_reg, int * p_ost_regs)
++{
++ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
++ unsigned long time_remaining = ZY_AC97_LINKOFF_TIMEOUT_DEF;
++
++ p_ac97_reg->gcr |= ZY_AC97_GCR_LINK_OFF_MSK;
++ p_ac97_reg->gcr |= ZY_AC97_GCR_CLKBPB_MSK;
++
++ while (!(p_ac97_reg->gsr & ZY_AC97_GSR_ACOFFD_MSK))
++ {
++ time_remaining --;
++ if (0 == time_remaining)
++ {
++ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
++ break;
++ }
++ udelay(1);
++ }
++ p_ac97_reg->gcr |= ZY_AC97_GCR_FRCRST_MSK;
++ /* check later: any delay needed */
++ p_ac97_reg->gcr &= ~ZY_AC97_GCR_FRCRST_MSK;
++ p_ac97_reg->gcr &= ~ZY_AC97_GCR_CLKBPB_MSK;
++
++ return(status);
++}
++
++
++zy_acodec_error_t zy_ac97_acodec_deinit(zy_acocec_context_t * p_ac97_ctxt)
++{
++ zy_acodec_error_t status ;
++
++ status = zy_ac97_acodec_shut_down_aclink((p_zy_ac97acodec_t)(p_ac97_ctxt->p_ctrl_reg), p_ac97_ctxt->p_ost_regs);
++
++ return (status);
++}
++
++zy_acodec_error_t zy_acodec_deinit(zy_acocec_context_t *p_device_context)
++{
++ /* power down codec by codec specific power down function */
++ if (p_device_context->g_pfn_codec_specific_dinit)
++ {
++ p_device_context->g_pfn_codec_specific_dinit(p_device_context);
++ }
++ /* call bus deinit function */
++ zy_ac97_acodec_deinit(p_device_context);
++ /* restore MFP, set GPIO to suitable value */
++ zy_ac97_acodec_mfp_deinit(p_device_context);
++
++ return ZY_ACODEC_SUCCESS;
++}
++
++void alsa_zy_codec_put(p_zy_acocec_context_t p_acodectxt)
++{
++
++ zy_acodec_deinit(p_acodectxt);
++ //pxa_set_cken(24, 0);
++ CKENA &= ~(1 << 24);
++
++ if(p_acodectxt->p_save_memory){
++ kfree(p_saved_memory);
++ }
++ if(p_acodectxt->p_zy_scenario){
++ kfree(p_zy_scenario);
++ }
++}
++
++
++zy_acodec_error_t zy_acodec_init(zy_acocec_context_t *p_device_context, int hw_init)
++{
++ /* set codec specific functions
++ * set mfp for Zylonite platform
++ * call bus init function (AC97, I2S, I2C, SSP)
++ * call specific init of codec
++ */
++ zy_acodec_error_t retval = ZY_ACODEC_SUCCESS;
++
++ if (p_device_context->acodec_id != WM_9713_ID)
++ {/* on Zylonite, it is Wolfson 9713 codec only */
++ return ZY_ACODEC_GENERAL_SW_ERR;
++ }
++
++ if (1 == hw_init)
++ {
++ zy_ac97_acodec_mfp_init(p_device_context);
++ zy_ac97_acodec_init(p_device_context); /* codec init common to ac97 */
++ }
++
++ /* wm9713-specific functions */
++ (p_device_context->g_pfn_codec_specific_init) = zy_wm9713_specific_init;
++ (p_device_context->g_pfn_codec_specific_dinit) = zy_wm9713_specific_deinit;
++ (p_device_context->g_pfn_acodec_read) = zy_ac97_acodec_read;
++ (p_device_context->g_pfn_acodec_write) = zy_ac97_acodec_write;
++
++ (p_device_context->g_pfn_event_ack) = zy_wm9713_event_ack;
++ (p_device_context->g_pfn_get_event) = zy_wm9713_get_event;
++ (p_device_context->g_pfn_disable_touch) = zy_wm9713_disable_touch;
++ (p_device_context->g_pfn_enable_touch) = zy_wm9713_enable_touch;
++
++ if (1 == hw_init)
++ {
++ retval = p_device_context->g_pfn_codec_specific_init(p_device_context);
++ }
++
++ return retval;
++}
++
++static int __devinit touch_codec_zy_probe(struct platform_device *dev)
++{
++ int ret = 0;
++ struct snd_card *card = NULL;
++ zy_acodec_error_t status;
++
++ /* will increase codec context use count */
++ ret = alsa_prepare_for_zy(&p_zy_codec_ctxt);
++ if (ret)
++ goto err;
++
++ /* codec specific initialization, audio will do it either */
++ if (1 == p_zy_codec_ctxt->use_count) {
++ status = zy_acodec_init(p_zy_codec_ctxt, 1);
++ if (ZY_ACODEC_SUCCESS != status) {
++ printk(KERN_ERR "initialize codec error\n");
++ ret = -EIO;
++ goto err;
++ }
++
++ /* power down the units of the acodec, sleep the acodec, zy_acodec_init()
++ * will open all the units' power of the codec while ALSA need all the codec
++ * units power down and the codec should sleep if it can.
++ * So on the zylonite platform we call below function to power down and sleep
++ * wm9713 codec.
++ */
++ p_zy_codec_ctxt->g_pfn_codec_specific_dinit(p_zy_codec_ctxt);
++
++ }
++
++ alsa_ts_init();
++
++ //mhn_mfp_set_afds(MFP_AC97_INT_N_GPIO,0,0);
++ //mhn_gpio_set_direction(MFP_AC97_INT_N_GPIO, GPIO_DIR_IN);
++ //mhn_gpio_clear_edge_detect_status(MFP_AC97_INT_N_GPIO);
++ gpio_direction_input(mfp_to_gpio(MFP_PIN_GPIO26));
++ ret = request_irq(IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO26)),
++ pxa_touch_irq, IRQF_TRIGGER_RISING,
++ "wm9713 touch event interrupt", NULL);
++ if (ret) {
++ printk(KERN_ERR "Request IRQ for touch failed (%d).\n", ret);
++ goto err;
++ }
++
++ return 0;
++err:
++ if (p_zy_codec_ctxt && (!--p_zy_codec_ctxt->use_count)) {
++ zy_acodec_deinit(p_zy_codec_ctxt);
++ //pxa_set_cken(24, 0);
++ CKENA &= ~(1 << 24);
++ kfree(p_zy_codec_ctxt);
++ p_zy_codec_ctxt = NULL;
++ }
++
++ if (card)
++ snd_card_free(card);
++
++ return ret;
++}
++
++static int __devexit touch_codec_zy_remove(struct platform_device *dev)
++{
++ struct snd_card *card = platform_get_drvdata(dev);
++
++ input_unregister_device(codec_zy_ts_input);
++
++ if (p_zy_codec_ctxt && (!--p_zy_codec_ctxt->use_count)) {
++ alsa_zy_codec_put(p_zy_codec_ctxt);
++ kfree(p_zy_codec_ctxt);
++ p_zy_codec_ctxt = NULL;
++ }
++
++ if (card) {
++ snd_card_free(card);
++ platform_set_drvdata(dev, NULL);
++ }
++
++ return 0;
++}
++
++#ifdef CONFIG_PM
++static int touch_codec_zy_suspend(struct platform_device *_dev, pm_message_t state, u32 level)
++{
++ int ret=0;
++
++ if (level == SUSPEND_DISABLE) {
++ ret = audio_codec_zy_do_suspend(NULL, SNDRV_CTL_POWER_D3cold, p_zy_codec_ctxt);
++ touch_suspend = 1;
++ }
++ return ret;
++}
++
++static int touch_codec_zy_resume(struct platform_device *_dev, u32 level)
++{
++ int ret = 0;
++
++ if (level == RESUME_ENABLE) {
++ ret = audio_codec_zy_do_resume(NULL, SNDRV_CTL_POWER_D0, p_zy_codec_ctxt);
++ touch_suspend = 0;
++ }
++ return ret;
++}
++#else
++#define touch_codec_zy_suspend NULL
++#define touch_codec_zy_resume NULL
++#endif
++
++static struct platform_driver touch_codec_zy_driver = {
++ .probe = touch_codec_zy_probe,
++ .remove = __devexit_p(touch_codec_zy_remove),
++ .suspend= touch_codec_zy_suspend,
++ .resume = touch_codec_zy_resume,
++ .driver = {
++ .name = "pxa2xx-touch",
++ },
++};
++
++static int __init touch_codec_zy_init(void)
++{
++ return platform_driver_register(&touch_codec_zy_driver);
++}
++
++static void __exit touch_code_zy_exit(void)
++{
++ platform_driver_unregister(&touch_codec_zy_driver);
++}
++module_init(touch_codec_zy_init);
++module_exit(touch_code_zy_exit);
++
++EXPORT_SYMBOL(p_zy_codec_ctxt);
++
++MODULE_AUTHOR("bridge.wu@marvell.com");
++MODULE_DESCRIPTION("zylonite audio touch codec driver on ALSA");
++MODULE_LICENSE("GPL");
++
