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 +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +//#include +#include +#include + +//#include +//#include + +#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 +//#include + +#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"); +