diff options
Diffstat (limited to 'drivers/media/video/tvaudio.c')
| -rw-r--r-- | drivers/media/video/tvaudio.c | 1740 |
1 files changed, 1740 insertions, 0 deletions
diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c new file mode 100644 index 000000000000..065eb4007b1d --- /dev/null +++ b/drivers/media/video/tvaudio.c @@ -0,0 +1,1740 @@ +/* + * experimental driver for simple i2c audio chips. + * + * Copyright (c) 2000 Gerd Knorr + * based on code by: + * Eric Sandeen (eric_sandeen@bigfoot.com) + * Steve VanDeBogart (vandebo@uclink.berkeley.edu) + * Greg Alexander (galexand@acm.org) + * + * This code is placed under the terms of the GNU General Public License + * + * OPTIONS: + * debug - set to 1 if you'd like to see debug messages + * + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/string.h> +#include <linux/timer.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/slab.h> +#include <linux/videodev.h> +#include <linux/i2c.h> +#include <linux/i2c-algo-bit.h> +#include <linux/init.h> +#include <linux/smp_lock.h> + +#include <media/audiochip.h> +#include <media/id.h> + +#include "tvaudio.h" + +/* ---------------------------------------------------------------------- */ +/* insmod args */ + +static int debug = 0; /* insmod parameter */ +module_param(debug, int, 0644); + +MODULE_DESCRIPTION("device driver for various i2c TV sound decoder / audiomux chips"); +MODULE_AUTHOR("Eric Sandeen, Steve VanDeBogart, Greg Alexander, Gerd Knorr"); +MODULE_LICENSE("GPL"); + +#define UNSET (-1U) +#define dprintk if (debug) printk + +/* ---------------------------------------------------------------------- */ +/* our structs */ + +#define MAXREGS 64 + +struct CHIPSTATE; +typedef int (*getvalue)(int); +typedef int (*checkit)(struct CHIPSTATE*); +typedef int (*initialize)(struct CHIPSTATE*); +typedef int (*getmode)(struct CHIPSTATE*); +typedef void (*setmode)(struct CHIPSTATE*, int mode); +typedef void (*checkmode)(struct CHIPSTATE*); + +/* i2c command */ +typedef struct AUDIOCMD { + int count; /* # of bytes to send */ + unsigned char bytes[MAXREGS+1]; /* addr, data, data, ... */ +} audiocmd; + +/* chip description */ +struct CHIPDESC { + char *name; /* chip name */ + int id; /* ID */ + int addr_lo, addr_hi; /* i2c address range */ + int registers; /* # of registers */ + + int *insmodopt; + checkit checkit; + initialize initialize; + int flags; +#define CHIP_HAS_VOLUME 1 +#define CHIP_HAS_BASSTREBLE 2 +#define CHIP_HAS_INPUTSEL 4 + + /* various i2c command sequences */ + audiocmd init; + + /* which register has which value */ + int leftreg,rightreg,treblereg,bassreg; + + /* initialize with (defaults to 65535/65535/32768/32768 */ + int leftinit,rightinit,trebleinit,bassinit; + + /* functions to convert the values (v4l -> chip) */ + getvalue volfunc,treblefunc,bassfunc; + + /* get/set mode */ + getmode getmode; + setmode setmode; + + /* check / autoswitch audio after channel switches */ + checkmode checkmode; + + /* input switch register + values for v4l inputs */ + int inputreg; + int inputmap[8]; + int inputmute; + int inputmask; +}; +static struct CHIPDESC chiplist[]; + +/* current state of the chip */ +struct CHIPSTATE { + struct i2c_client c; + + /* index into CHIPDESC array */ + int type; + + /* shadow register set */ + audiocmd shadow; + + /* current settings */ + __u16 left,right,treble,bass,mode; + int prevmode; + int norm; + + /* thread */ + pid_t tpid; + struct completion texit; + wait_queue_head_t wq; + struct timer_list wt; + int done; + int watch_stereo; +}; + +#define VIDEO_MODE_RADIO 16 /* norm magic for radio mode */ + +/* ---------------------------------------------------------------------- */ +/* i2c addresses */ + +static unsigned short normal_i2c[] = { + I2C_TDA8425 >> 1, + I2C_TEA6300 >> 1, + I2C_TEA6420 >> 1, + I2C_TDA9840 >> 1, + I2C_TDA985x_L >> 1, + I2C_TDA985x_H >> 1, + I2C_TDA9874 >> 1, + I2C_PIC16C54 >> 1, + I2C_CLIENT_END }; +static unsigned short normal_i2c_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END }; +I2C_CLIENT_INSMOD; + +static struct i2c_driver driver; +static struct i2c_client client_template; + + +/* ---------------------------------------------------------------------- */ +/* i2c I/O functions */ + +static int chip_write(struct CHIPSTATE *chip, int subaddr, int val) +{ + unsigned char buffer[2]; + + if (-1 == subaddr) { + dprintk("%s: chip_write: 0x%x\n", + i2c_clientname(&chip->c), val); + chip->shadow.bytes[1] = val; + buffer[0] = val; + if (1 != i2c_master_send(&chip->c,buffer,1)) { + printk(KERN_WARNING "%s: I/O error (write 0x%x)\n", + i2c_clientname(&chip->c), val); + return -1; + } + } else { + dprintk("%s: chip_write: reg%d=0x%x\n", + i2c_clientname(&chip->c), subaddr, val); + chip->shadow.bytes[subaddr+1] = val; + buffer[0] = subaddr; + buffer[1] = val; + if (2 != i2c_master_send(&chip->c,buffer,2)) { + printk(KERN_WARNING "%s: I/O error (write reg%d=0x%x)\n", + i2c_clientname(&chip->c), subaddr, val); + return -1; + } + } + return 0; +} + +static int chip_write_masked(struct CHIPSTATE *chip, int subaddr, int val, int mask) +{ + if (mask != 0) { + if (-1 == subaddr) { + val = (chip->shadow.bytes[1] & ~mask) | (val & mask); + } else { + val = (chip->shadow.bytes[subaddr+1] & ~mask) | (val & mask); + } + } + return chip_write(chip, subaddr, val); +} + +static int chip_read(struct CHIPSTATE *chip) +{ + unsigned char buffer; + + if (1 != i2c_master_recv(&chip->c,&buffer,1)) { + printk(KERN_WARNING "%s: I/O error (read)\n", + i2c_clientname(&chip->c)); + return -1; + } + dprintk("%s: chip_read: 0x%x\n",i2c_clientname(&chip->c),buffer); + return buffer; +} + +static int chip_read2(struct CHIPSTATE *chip, int subaddr) +{ + unsigned char write[1]; + unsigned char read[1]; + struct i2c_msg msgs[2] = { + { chip->c.addr, 0, 1, write }, + { chip->c.addr, I2C_M_RD, 1, read } + }; + write[0] = subaddr; + + if (2 != i2c_transfer(chip->c.adapter,msgs,2)) { + printk(KERN_WARNING "%s: I/O error (read2)\n", + i2c_clientname(&chip->c)); + return -1; + } + dprintk("%s: chip_read2: reg%d=0x%x\n", + i2c_clientname(&chip->c),subaddr,read[0]); + return read[0]; +} + +static int chip_cmd(struct CHIPSTATE *chip, char *name, audiocmd *cmd) +{ + int i; + + if (0 == cmd->count) + return 0; + + /* update our shadow register set; print bytes if (debug > 0) */ + dprintk("%s: chip_cmd(%s): reg=%d, data:", + i2c_clientname(&chip->c),name,cmd->bytes[0]); + for (i = 1; i < cmd->count; i++) { + dprintk(" 0x%x",cmd->bytes[i]); + chip->shadow.bytes[i+cmd->bytes[0]] = cmd->bytes[i]; + } + dprintk("\n"); + + /* send data to the chip */ + if (cmd->count != i2c_master_send(&chip->c,cmd->bytes,cmd->count)) { + printk(KERN_WARNING "%s: I/O error (%s)\n", i2c_clientname(&chip->c), name); + return -1; + } + return 0; +} + +/* ---------------------------------------------------------------------- */ +/* kernel thread for doing i2c stuff asyncronly + * right now it is used only to check the audio mode (mono/stereo/whatever) + * some time after switching to another TV channel, then turn on stereo + * if available, ... + */ + +static void chip_thread_wake(unsigned long data) +{ + struct CHIPSTATE *chip = (struct CHIPSTATE*)data; + wake_up_interruptible(&chip->wq); +} + +static int chip_thread(void *data) +{ + DECLARE_WAITQUEUE(wait, current); + struct CHIPSTATE *chip = data; + struct CHIPDESC *desc = chiplist + chip->type; + + daemonize("%s",i2c_clientname(&chip->c)); + allow_signal(SIGTERM); + dprintk("%s: thread started\n", i2c_clientname(&chip->c)); + + for (;;) { + add_wait_queue(&chip->wq, &wait); + if (!chip->done) { + set_current_state(TASK_INTERRUPTIBLE); + schedule(); + } + remove_wait_queue(&chip->wq, &wait); + try_to_freeze(PF_FREEZE); + if (chip->done || signal_pending(current)) + break; + dprintk("%s: thread wakeup\n", i2c_clientname(&chip->c)); + + /* don't do anything for radio or if mode != auto */ + if (chip->norm == VIDEO_MODE_RADIO || chip->mode != 0) + continue; + + /* have a look what's going on */ + desc->checkmode(chip); + + /* schedule next check */ + mod_timer(&chip->wt, jiffies+2*HZ); + } + + dprintk("%s: thread exiting\n", i2c_clientname(&chip->c)); + complete_and_exit(&chip->texit, 0); + return 0; +} + +static void generic_checkmode(struct CHIPSTATE *chip) +{ + struct CHIPDESC *desc = chiplist + chip->type; + int mode = desc->getmode(chip); + + if (mode == chip->prevmode) + return; + + dprintk("%s: thread checkmode\n", i2c_clientname(&chip->c)); + chip->prevmode = mode; + + if (mode & VIDEO_SOUND_STEREO) + desc->setmode(chip,VIDEO_SOUND_STEREO); + else if (mode & VIDEO_SOUND_LANG1) + desc->setmode(chip,VIDEO_SOUND_LANG1); + else if (mode & VIDEO_SOUND_LANG2) + desc->setmode(chip,VIDEO_SOUND_LANG2); + else + desc->setmode(chip,VIDEO_SOUND_MONO); +} + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - defines+functions for tda9840 */ + +#define TDA9840_SW 0x00 +#define TDA9840_LVADJ 0x02 +#define TDA9840_STADJ 0x03 +#define TDA9840_TEST 0x04 + +#define TDA9840_MONO 0x10 +#define TDA9840_STEREO 0x2a +#define TDA9840_DUALA 0x12 +#define TDA9840_DUALB 0x1e +#define TDA9840_DUALAB 0x1a +#define TDA9840_DUALBA 0x16 +#define TDA9840_EXTERNAL 0x7a + +#define TDA9840_DS_DUAL 0x20 /* Dual sound identified */ +#define TDA9840_ST_STEREO 0x40 /* Stereo sound identified */ +#define TDA9840_PONRES 0x80 /* Power-on reset detected if = 1 */ + +#define TDA9840_TEST_INT1SN 0x1 /* Integration time 0.5s when set */ +#define TDA9840_TEST_INTFU 0x02 /* Disables integrator function */ + +static int tda9840_getmode(struct CHIPSTATE *chip) +{ + int val, mode; + + val = chip_read(chip); + mode = VIDEO_SOUND_MONO; + if (val & TDA9840_DS_DUAL) + mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2; + if (val & TDA9840_ST_STEREO) + mode |= VIDEO_SOUND_STEREO; + + dprintk ("tda9840_getmode(): raw chip read: %d, return: %d\n", + val, mode); + return mode; +} + +static void tda9840_setmode(struct CHIPSTATE *chip, int mode) +{ + int update = 1; + int t = chip->shadow.bytes[TDA9840_SW + 1] & ~0x7e; + + switch (mode) { + case VIDEO_SOUND_MONO: + t |= TDA9840_MONO; + break; + case VIDEO_SOUND_STEREO: + t |= TDA9840_STEREO; + break; + case VIDEO_SOUND_LANG1: + t |= TDA9840_DUALA; + break; + case VIDEO_SOUND_LANG2: + t |= TDA9840_DUALB; + break; + default: + update = 0; + } + + if (update) + chip_write(chip, TDA9840_SW, t); +} + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - defines+functions for tda985x */ + +/* subaddresses for TDA9855 */ +#define TDA9855_VR 0x00 /* Volume, right */ +#define TDA9855_VL 0x01 /* Volume, left */ +#define TDA9855_BA 0x02 /* Bass */ +#define TDA9855_TR 0x03 /* Treble */ +#define TDA9855_SW 0x04 /* Subwoofer - not connected on DTV2000 */ + +/* subaddresses for TDA9850 */ +#define TDA9850_C4 0x04 /* Control 1 for TDA9850 */ + +/* subaddesses for both chips */ +#define TDA985x_C5 0x05 /* Control 2 for TDA9850, Control 1 for TDA9855 */ +#define TDA985x_C6 0x06 /* Control 3 for TDA9850, Control 2 for TDA9855 */ +#define TDA985x_C7 0x07 /* Control 4 for TDA9850, Control 3 for TDA9855 */ +#define TDA985x_A1 0x08 /* Alignment 1 for both chips */ +#define TDA985x_A2 0x09 /* Alignment 2 for both chips */ +#define TDA985x_A3 0x0a /* Alignment 3 for both chips */ + +/* Masks for bits in TDA9855 subaddresses */ +/* 0x00 - VR in TDA9855 */ +/* 0x01 - VL in TDA9855 */ +/* lower 7 bits control gain from -71dB (0x28) to 16dB (0x7f) + * in 1dB steps - mute is 0x27 */ + + +/* 0x02 - BA in TDA9855 */ +/* lower 5 bits control bass gain from -12dB (0x06) to 16.5dB (0x19) + * in .5dB steps - 0 is 0x0E */ + + +/* 0x03 - TR in TDA9855 */ +/* 4 bits << 1 control treble gain from -12dB (0x3) to 12dB (0xb) + * in 3dB steps - 0 is 0x7 */ + +/* Masks for bits in both chips' subaddresses */ +/* 0x04 - SW in TDA9855, C4/Control 1 in TDA9850 */ +/* Unique to TDA9855: */ +/* 4 bits << 2 control subwoofer/surround gain from -14db (0x1) to 14db (0xf) + * in 3dB steps - mute is 0x0 */ + +/* Unique to TDA9850: */ +/* lower 4 bits control stereo noise threshold, over which stereo turns off + * set to values of 0x00 through 0x0f for Ster1 through Ster16 */ + + +/* 0x05 - C5 - Control 1 in TDA9855 , Control 2 in TDA9850*/ +/* Unique to TDA9855: */ +#define TDA9855_MUTE 1<<7 /* GMU, Mute at outputs */ +#define TDA9855_AVL 1<<6 /* AVL, Automatic Volume Level */ +#define TDA9855_LOUD 1<<5 /* Loudness, 1==off */ +#define TDA9855_SUR 1<<3 /* Surround / Subwoofer 1==.5(L-R) 0==.5(L+R) */ + /* Bits 0 to 3 select various combinations + * of line in and line out, only the + * interesting ones are defined */ +#define TDA9855_EXT 1<<2 /* Selects inputs LIR and LIL. Pins 41 & 12 */ +#define TDA9855_INT 0 /* Selects inputs LOR and LOL. (internal) */ + +/* Unique to TDA9850: */ +/* lower 4 bits contol SAP noise threshold, over which SAP turns off + * set to values of 0x00 through 0x0f for SAP1 through SAP16 */ + + +/* 0x06 - C6 - Control 2 in TDA9855, Control 3 in TDA9850 */ +/* Common to TDA9855 and TDA9850: */ +#define TDA985x_SAP 3<<6 /* Selects SAP output, mute if not received */ +#define TDA985x_STEREO 1<<6 /* Selects Stereo ouput, mono if not received */ +#define TDA985x_MONO 0 /* Forces Mono output */ +#define TDA985x_LMU 1<<3 /* Mute (LOR/LOL for 9855, OUTL/OUTR for 9850) */ + +/* Unique to TDA9855: */ +#define TDA9855_TZCM 1<<5 /* If set, don't mute till zero crossing */ +#define TDA9855_VZCM 1<<4 /* If set, don't change volume till zero crossing*/ +#define TDA9855_LINEAR 0 /* Linear Stereo */ +#define TDA9855_PSEUDO 1 /* Pseudo Stereo */ +#define TDA9855_SPAT_30 2 /* Spatial Stereo, 30% anti-phase crosstalk */ +#define TDA9855_SPAT_50 3 /* Spatial Stereo, 52% anti-phase crosstalk */ +#define TDA9855_E_MONO 7 /* Forced mono - mono select elseware, so useless*/ + +/* 0x07 - C7 - Control 3 in TDA9855, Control 4 in TDA9850 */ +/* Common to both TDA9855 and TDA9850: */ +/* lower 4 bits control input gain from -3.5dB (0x0) to 4dB (0xF) + * in .5dB steps - 0dB is 0x7 */ + +/* 0x08, 0x09 - A1 and A2 (read/write) */ +/* Common to both TDA9855 and TDA9850: */ +/* lower 5 bites are wideband and spectral expander alignment + * from 0x00 to 0x1f - nominal at 0x0f and 0x10 (read/write) */ +#define TDA985x_STP 1<<5 /* Stereo Pilot/detect (read-only) */ +#define TDA985x_SAPP 1<<6 /* SAP Pilot/detect (read-only) */ +#define TDA985x_STS 1<<7 /* Stereo trigger 1= <35mV 0= <30mV (write-only)*/ + +/* 0x0a - A3 */ +/* Common to both TDA9855 and TDA9850: */ +/* lower 3 bits control timing current for alignment: -30% (0x0), -20% (0x1), + * -10% (0x2), nominal (0x3), +10% (0x6), +20% (0x5), +30% (0x4) */ +#define TDA985x_ADJ 1<<7 /* Stereo adjust on/off (wideband and spectral */ + +static int tda9855_volume(int val) { return val/0x2e8+0x27; } +static int tda9855_bass(int val) { return val/0xccc+0x06; } +static int tda9855_treble(int val) { return (val/0x1c71+0x3)<<1; } + +static int tda985x_getmode(struct CHIPSTATE *chip) +{ + int mode; + + mode = ((TDA985x_STP | TDA985x_SAPP) & + chip_read(chip)) >> 4; + /* Add mono mode regardless of SAP and stereo */ + /* Allows forced mono */ + return mode | VIDEO_SOUND_MONO; +} + +static void tda985x_setmode(struct CHIPSTATE *chip, int mode) +{ + int update = 1; + int c6 = chip->shadow.bytes[TDA985x_C6+1] & 0x3f; + + switch (mode) { + case VIDEO_SOUND_MONO: + c6 |= TDA985x_MONO; + break; + case VIDEO_SOUND_STEREO: + c6 |= TDA985x_STEREO; + break; + case VIDEO_SOUND_LANG1: + c6 |= TDA985x_SAP; + break; + default: + update = 0; + } + if (update) + chip_write(chip,TDA985x_C6,c6); +} + + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - defines+functions for tda9873h */ + +/* Subaddresses for TDA9873H */ + +#define TDA9873_SW 0x00 /* Switching */ +#define TDA9873_AD 0x01 /* Adjust */ +#define TDA9873_PT 0x02 /* Port */ + +/* Subaddress 0x00: Switching Data + * B7..B0: + * + * B1, B0: Input source selection + * 0, 0 internal + * 1, 0 external stereo + * 0, 1 external mono + */ +#define TDA9873_INP_MASK 3 +#define TDA9873_INTERNAL 0 +#define TDA9873_EXT_STEREO 2 +#define TDA9873_EXT_MONO 1 + +/* B3, B2: output signal select + * B4 : transmission mode + * 0, 0, 1 Mono + * 1, 0, 0 Stereo + * 1, 1, 1 Stereo (reversed channel) + * 0, 0, 0 Dual AB + * 0, 0, 1 Dual AA + * 0, 1, 0 Dual BB + * 0, 1, 1 Dual BA + */ + +#define TDA9873_TR_MASK (7 << 2) +#define TDA9873_TR_MONO 4 +#define TDA9873_TR_STEREO 1 << 4 +#define TDA9873_TR_REVERSE (1 << 3) & (1 << 2) +#define TDA9873_TR_DUALA 1 << 2 +#define TDA9873_TR_DUALB 1 << 3 + +/* output level controls + * B5: output level switch (0 = reduced gain, 1 = normal gain) + * B6: mute (1 = muted) + * B7: auto-mute (1 = auto-mute enabled) + */ + +#define TDA9873_GAIN_NORMAL 1 << 5 +#define TDA9873_MUTE 1 << 6 +#define TDA9873_AUTOMUTE 1 << 7 + +/* Subaddress 0x01: Adjust/standard */ + +/* Lower 4 bits (C3..C0) control stereo adjustment on R channel (-0.6 - +0.7 dB) + * Recommended value is +0 dB + */ + +#define TDA9873_STEREO_ADJ 0x06 /* 0dB gain */ + +/* Bits C6..C4 control FM stantard + * C6, C5, C4 + * 0, 0, 0 B/G (PAL FM) + * 0, 0, 1 M + * 0, 1, 0 D/K(1) + * 0, 1, 1 D/K(2) + * 1, 0, 0 D/K(3) + * 1, 0, 1 I + */ +#define TDA9873_BG 0 +#define TDA9873_M 1 +#define TDA9873_DK1 2 +#define TDA9873_DK2 3 +#define TDA9873_DK3 4 +#define TDA9873_I 5 + +/* C7 controls identification response time (1=fast/0=normal) + */ +#define TDA9873_IDR_NORM 0 +#define TDA9873_IDR_FAST 1 << 7 + + +/* Subaddress 0x02: Port data */ + +/* E1, E0 free programmable ports P1/P2 + 0, 0 both ports low + 0, 1 P1 high + 1, 0 P2 high + 1, 1 both ports high +*/ + +#define TDA9873_PORTS 3 + +/* E2: test port */ +#define TDA9873_TST_PORT 1 << 2 + +/* E5..E3 control mono output channel (together with transmission mode bit B4) + * + * E5 E4 E3 B4 OUTM + * 0 0 0 0 mono + * 0 0 1 0 DUAL B + * 0 1 0 1 mono (from stereo decoder) + */ +#define TDA9873_MOUT_MONO 0 +#define TDA9873_MOUT_FMONO 0 +#define TDA9873_MOUT_DUALA 0 +#define TDA9873_MOUT_DUALB 1 << 3 +#define TDA9873_MOUT_ST 1 << 4 +#define TDA9873_MOUT_EXTM (1 << 4 ) & (1 << 3) +#define TDA9873_MOUT_EXTL 1 << 5 +#define TDA9873_MOUT_EXTR (1 << 5 ) & (1 << 3) +#define TDA9873_MOUT_EXTLR (1 << 5 ) & (1 << 4) +#define TDA9873_MOUT_MUTE (1 << 5 ) & (1 << 4) & (1 << 3) + +/* Status bits: (chip read) */ +#define TDA9873_PONR 0 /* Power-on reset detected if = 1 */ +#define TDA9873_STEREO 2 /* Stereo sound is identified */ +#define TDA9873_DUAL 4 /* Dual sound is identified */ + +static int tda9873_getmode(struct CHIPSTATE *chip) +{ + int val,mode; + + val = chip_read(chip); + mode = VIDEO_SOUND_MONO; + if (val & TDA9873_STEREO) + mode |= VIDEO_SOUND_STEREO; + if (val & TDA9873_DUAL) + mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2; + dprintk ("tda9873_getmode(): raw chip read: %d, return: %d\n", + val, mode); + return mode; +} + +static void tda9873_setmode(struct CHIPSTATE *chip, int mode) +{ + int sw_data = chip->shadow.bytes[TDA9873_SW+1] & ~ TDA9873_TR_MASK; + /* int adj_data = chip->shadow.bytes[TDA9873_AD+1] ; */ + + if ((sw_data & TDA9873_INP_MASK) != TDA9873_INTERNAL) { + dprintk("tda9873_setmode(): external input\n"); + return; + } + + dprintk("tda9873_setmode(): chip->shadow.bytes[%d] = %d\n", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]); + dprintk("tda9873_setmode(): sw_data = %d\n", sw_data); + + switch (mode) { + case VIDEO_SOUND_MONO: + sw_data |= TDA9873_TR_MONO; + break; + case VIDEO_SOUND_STEREO: + sw_data |= TDA9873_TR_STEREO; + break; + case VIDEO_SOUND_LANG1: + sw_data |= TDA9873_TR_DUALA; + break; + case VIDEO_SOUND_LANG2: + sw_data |= TDA9873_TR_DUALB; + break; + default: + chip->mode = 0; + return; + } + + chip_write(chip, TDA9873_SW, sw_data); + dprintk("tda9873_setmode(): req. mode %d; chip_write: %d\n", + mode, sw_data); +} + +static int tda9873_checkit(struct CHIPSTATE *chip) +{ + int rc; + + if (-1 == (rc = chip_read2(chip,254))) + return 0; + return (rc & ~0x1f) == 0x80; +} + + +/* ---------------------------------------------------------------------- */ +/* audio chip description - defines+functions for tda9874h and tda9874a */ +/* Dariusz Kowalewski <darekk@automex.pl> */ + +/* Subaddresses for TDA9874H and TDA9874A (slave rx) */ +#define TDA9874A_AGCGR 0x00 /* AGC gain */ +#define TDA9874A_GCONR 0x01 /* general config */ +#define TDA9874A_MSR 0x02 /* monitor select */ +#define TDA9874A_C1FRA 0x03 /* carrier 1 freq. */ +#define TDA9874A_C1FRB 0x04 /* carrier 1 freq. */ +#define TDA9874A_C1FRC 0x05 /* carrier 1 freq. */ +#define TDA9874A_C2FRA 0x06 /* carrier 2 freq. */ +#define TDA9874A_C2FRB 0x07 /* carrier 2 freq. */ +#define TDA9874A_C2FRC 0x08 /* carrier 2 freq. */ +#define TDA9874A_DCR 0x09 /* demodulator config */ +#define TDA9874A_FMER 0x0a /* FM de-emphasis */ +#define TDA9874A_FMMR 0x0b /* FM dematrix */ +#define TDA9874A_C1OLAR 0x0c /* ch.1 output level adj. */ +#define TDA9874A_C2OLAR 0x0d /* ch.2 output level adj. */ +#define TDA9874A_NCONR 0x0e /* NICAM config */ +#define TDA9874A_NOLAR 0x0f /* NICAM output level adj. */ +#define TDA9874A_NLELR 0x10 /* NICAM lower error limit */ +#define TDA9874A_NUELR 0x11 /* NICAM upper error limit */ +#define TDA9874A_AMCONR 0x12 /* audio mute control */ +#define TDA9874A_SDACOSR 0x13 /* stereo DAC output select */ +#define TDA9874A_AOSR 0x14 /* analog output select */ +#define TDA9874A_DAICONR 0x15 /* digital audio interface config */ +#define TDA9874A_I2SOSR 0x16 /* I2S-bus output select */ +#define TDA9874A_I2SOLAR 0x17 /* I2S-bus output level adj. */ +#define TDA9874A_MDACOSR 0x18 /* mono DAC output select (tda9874a) */ +#define TDA9874A_ESP 0xFF /* easy standard progr. (tda9874a) */ + +/* Subaddresses for TDA9874H and TDA9874A (slave tx) */ +#define TDA9874A_DSR 0x00 /* device status */ +#define TDA9874A_NSR 0x01 /* NICAM status */ +#define TDA9874A_NECR 0x02 /* NICAM error count */ +#define TDA9874A_DR1 0x03 /* add. data LSB */ +#define TDA9874A_DR2 0x04 /* add. data MSB */ +#define TDA9874A_LLRA 0x05 /* monitor level read-out LSB */ +#define TDA9874A_LLRB 0x06 /* monitor level read-out MSB */ +#define TDA9874A_SIFLR 0x07 /* SIF level */ +#define TDA9874A_TR2 252 /* test reg. 2 */ +#define TDA9874A_TR1 253 /* test reg. 1 */ +#define TDA9874A_DIC 254 /* device id. code */ +#define TDA9874A_SIC 255 /* software id. code */ + + +static int tda9874a_mode = 1; /* 0: A2, 1: NICAM */ +static int tda9874a_GCONR = 0xc0; /* default config. input pin: SIFSEL=0 */ +static int tda9874a_NCONR = 0x01; /* default NICAM config.: AMSEL=0,AMUTE=1 */ +static int tda9874a_ESP = 0x07; /* default standard: NICAM D/K */ +static int tda9874a_dic = -1; /* device id. code */ + +/* insmod options for tda9874a */ +static unsigned int tda9874a_SIF = UNSET; +static unsigned int tda9874a_AMSEL = UNSET; +static unsigned int tda9874a_STD = UNSET; +module_param(tda9874a_SIF, int, 0444); +module_param(tda9874a_AMSEL, int, 0444); +module_param(tda9874a_STD, int, 0444); + +/* + * initialization table for tda9874 decoder: + * - carrier 1 freq. registers (3 bytes) + * - carrier 2 freq. registers (3 bytes) + * - demudulator config register + * - FM de-emphasis register (slow identification mode) + * Note: frequency registers must be written in single i2c transfer. + */ +static struct tda9874a_MODES { + char *name; + audiocmd cmd; +} tda9874a_modelist[9] = { + { "A2, B/G", + { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x77,0xA0,0x00, 0x00,0x00 }} }, + { "A2, M (Korea)", + { 9, { TDA9874A_C1FRA, 0x5D,0xC0,0x00, 0x62,0x6A,0xAA, 0x20,0x22 }} }, + { "A2, D/K (1)", + { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x82,0x60,0x00, 0x00,0x00 }} }, + { "A2, D/K (2)", + { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x8C,0x75,0x55, 0x00,0x00 }} }, + { "A2, D/K (3)", + { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x77,0xA0,0x00, 0x00,0x00 }} }, + { "NICAM, I", + { 9, { TDA9874A_C1FRA, 0x7D,0x00,0x00, 0x88,0x8A,0xAA, 0x08,0x33 }} }, + { "NICAM, B/G", + { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x79,0xEA,0xAA, 0x08,0x33 }} }, + { "NICAM, D/K", /* default */ + { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x08,0x33 }} }, + { "NICAM, L", + { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x09,0x33 }} } +}; + +static int tda9874a_setup(struct CHIPSTATE *chip) +{ + chip_write(chip, TDA9874A_AGCGR, 0x00); /* 0 dB */ + chip_write(chip, TDA9874A_GCONR, tda9874a_GCONR); + chip_write(chip, TDA9874A_MSR, (tda9874a_mode) ? 0x03:0x02); + if(tda9874a_dic == 0x11) { + chip_write(chip, TDA9874A_FMMR, 0x80); + } else { /* dic == 0x07 */ + chip_cmd(chip,"tda9874_modelist",&tda9874a_modelist[tda9874a_STD].cmd); + chip_write(chip, TDA9874A_FMMR, 0x00); + } + chip_write(chip, TDA9874A_C1OLAR, 0x00); /* 0 dB */ + chip_write(chip, TDA9874A_C2OLAR, 0x00); /* 0 dB */ + chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR); + chip_write(chip, TDA9874A_NOLAR, 0x00); /* 0 dB */ + /* Note: If signal quality is poor you may want to change NICAM */ + /* error limit registers (NLELR and NUELR) to some greater values. */ + /* Then the sound would remain stereo, but won't be so clear. */ + chip_write(chip, TDA9874A_NLELR, 0x14); /* default */ + chip_write(chip, TDA9874A_NUELR, 0x50); /* default */ + + if(tda9874a_dic == 0x11) { + chip_write(chip, TDA9874A_AMCONR, 0xf9); + chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80); + chip_write(chip, TDA9874A_AOSR, 0x80); + chip_write(chip, TDA9874A_MDACOSR, (tda9874a_mode) ? 0x82:0x80); + chip_write(chip, TDA9874A_ESP, tda9874a_ESP); + } else { /* dic == 0x07 */ + chip_write(chip, TDA9874A_AMCONR, 0xfb); + chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80); + chip_write(chip, TDA9874A_AOSR, 0x00); // or 0x10 + } + dprintk("tda9874a_setup(): %s [0x%02X].\n", + tda9874a_modelist[tda9874a_STD].name,tda9874a_STD); + return 1; +} + +static int tda9874a_getmode(struct CHIPSTATE *chip) +{ + int dsr,nsr,mode; + int necr; /* just for debugging */ + + mode = VIDEO_SOUND_MONO; + + if(-1 == (dsr = chip_read2(chip,TDA9874A_DSR))) + return mode; + if(-1 == (nsr = chip_read2(chip,TDA9874A_NSR))) + return mode; + if(-1 == (necr = chip_read2(chip,TDA9874A_NECR))) + return mode; + + /* need to store dsr/nsr somewhere */ + chip->shadow.bytes[MAXREGS-2] = dsr; + chip->shadow.bytes[MAXREGS-1] = nsr; + + if(tda9874a_mode) { + /* Note: DSR.RSSF and DSR.AMSTAT bits are also checked. + * If NICAM auto-muting is enabled, DSR.AMSTAT=1 indicates + * that sound has (temporarily) switched from NICAM to + * mono FM (or AM) on 1st sound carrier due to high NICAM bit + * error count. So in fact there is no stereo in this case :-( + * But changing the mode to VIDEO_SOUND_MONO would switch + * external 4052 multiplexer in audio_hook(). + */ +#if 0 + if((nsr & 0x02) && !(dsr & 0x10)) /* NSR.S/MB=1 and DSR.AMSTAT=0 */ + mode |= VIDEO_SOUND_STEREO; +#else + if(nsr & 0x02) /* NSR.S/MB=1 */ + mode |= VIDEO_SOUND_STEREO; +#endif + if(nsr & 0x01) /* NSR.D/SB=1 */ + mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2; + } else { + if(dsr & 0x02) /* DSR.IDSTE=1 */ + mode |= VIDEO_SOUND_STEREO; + if(dsr & 0x04) /* DSR.IDDUA=1 */ + mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2; + } + + dprintk("tda9874a_getmode(): DSR=0x%X, NSR=0x%X, NECR=0x%X, return: %d.\n", + dsr, nsr, necr, mode); + return mode; +} + +static void tda9874a_setmode(struct CHIPSTATE *chip, int mode) +{ + /* Disable/enable NICAM auto-muting (based on DSR.RSSF status bit). */ + /* If auto-muting is disabled, we can hear a signal of degrading quality. */ + if(tda9874a_mode) { + if(chip->shadow.bytes[MAXREGS-2] & 0x20) /* DSR.RSSF=1 */ + tda9874a_NCONR &= 0xfe; /* enable */ + else + tda9874a_NCONR |= 0x01; /* disable */ + chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR); + } + + /* Note: TDA9874A supports automatic FM dematrixing (FMMR register) + * and has auto-select function for audio output (AOSR register). + * Old TDA9874H doesn't support these features. + * TDA9874A also has additional mono output pin (OUTM), which + * on same (all?) tv-cards is not used, anyway (as well as MONOIN). + */ + if(tda9874a_dic == 0x11) { + int aosr = 0x80; + int mdacosr = (tda9874a_mode) ? 0x82:0x80; + + switch(mode) { + case VIDEO_SOUND_MONO: + case VIDEO_SOUND_STEREO: + break; + case VIDEO_SOUND_LANG1: + aosr = 0x80; /* auto-select, dual A/A */ + mdacosr = (tda9874a_mode) ? 0x82:0x80; + break; + case VIDEO_SOUND_LANG2: + aosr = 0xa0; /* auto-select, dual B/B */ + mdacosr = (tda9874a_mode) ? 0x83:0x81; + break; + default: + chip->mode = 0; + return; + } + chip_write(chip, TDA9874A_AOSR, aosr); + chip_write(chip, TDA9874A_MDACOSR, mdacosr); + + dprintk("tda9874a_setmode(): req. mode %d; AOSR=0x%X, MDACOSR=0x%X.\n", + mode, aosr, mdacosr); + + } else { /* dic == 0x07 */ + int fmmr,aosr; + + switch(mode) { + case VIDEO_SOUND_MONO: + fmmr = 0x00; /* mono */ + aosr = 0x10; /* A/A */ + break; + case VIDEO_SOUND_STEREO: + if(tda9874a_mode) { + fmmr = 0x00; + aosr = 0x00; /* handled by NICAM auto-mute */ + } else { + fmmr = (tda9874a_ESP == 1) ? 0x05 : 0x04; /* stereo */ + aosr = 0x00; + } + break; + case VIDEO_SOUND_LANG1: + fmmr = 0x02; /* dual */ + aosr = 0x10; /* dual A/A */ + break; + case VIDEO_SOUND_LANG2: + fmmr = 0x02; /* dual */ + aosr = 0x20; /* dual B/B */ + break; + default: + chip->mode = 0; + return; + } + chip_write(chip, TDA9874A_FMMR, fmmr); + chip_write(chip, TDA9874A_AOSR, aosr); + + dprintk("tda9874a_setmode(): req. mode %d; FMMR=0x%X, AOSR=0x%X.\n", + mode, fmmr, aosr); + } +} + +static int tda9874a_checkit(struct CHIPSTATE *chip) +{ + int dic,sic; /* device id. and software id. codes */ + + if(-1 == (dic = chip_read2(chip,TDA9874A_DIC))) + return 0; + if(-1 == (sic = chip_read2(chip,TDA9874A_SIC))) + return 0; + + dprintk("tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", dic, sic); + + if((dic == 0x11)||(dic == 0x07)) { + printk("tvaudio: found tda9874%s.\n", (dic == 0x11) ? "a":"h"); + tda9874a_dic = dic; /* remember device id. */ + return 1; + } + return 0; /* not found */ +} + +static int tda9874a_initialize(struct CHIPSTATE *chip) +{ + if (tda9874a_SIF > 2) + tda9874a_SIF = 1; + if (tda9874a_STD >= 8) + tda9874a_STD = 0; + if(tda9874a_AMSEL > 1) + tda9874a_AMSEL = 0; + + if(tda9874a_SIF == 1) + tda9874a_GCONR = 0xc0; /* sound IF input 1 */ + else + tda9874a_GCONR = 0xc1; /* sound IF input 2 */ + + tda9874a_ESP = tda9874a_STD; + tda9874a_mode = (tda9874a_STD < 5) ? 0 : 1; + + if(tda9874a_AMSEL == 0) + tda9874a_NCONR = 0x01; /* auto-mute: analog mono input */ + else + tda9874a_NCONR = 0x05; /* auto-mute: 1st carrier FM or AM */ + + tda9874a_setup(chip); + return 0; +} + + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - defines+functions for tea6420 */ + +#define TEA6300_VL 0x00 /* volume left */ +#define TEA6300_VR 0x01 /* volume right */ +#define TEA6300_BA 0x02 /* bass */ +#define TEA6300_TR 0x03 /* treble */ +#define TEA6300_FA 0x04 /* fader control */ +#define TEA6300_S 0x05 /* switch register */ + /* values for those registers: */ +#define TEA6300_S_SA 0x01 /* stereo A input */ +#define TEA6300_S_SB 0x02 /* stereo B */ +#define TEA6300_S_SC 0x04 /* stereo C */ +#define TEA6300_S_GMU 0x80 /* general mute */ + +#define TEA6320_V 0x00 /* volume (0-5)/loudness off (6)/zero crossing mute(7) */ +#define TEA6320_FFR 0x01 /* fader front right (0-5) */ +#define TEA6320_FFL 0x02 /* fader front left (0-5) */ +#define TEA6320_FRR 0x03 /* fader rear right (0-5) */ +#define TEA6320_FRL 0x04 /* fader rear left (0-5) */ +#define TEA6320_BA 0x05 /* bass (0-4) */ +#define TEA6320_TR 0x06 /* treble (0-4) */ +#define TEA6320_S 0x07 /* switch register */ + /* values for those registers: */ +#define TEA6320_S_SA 0x07 /* stereo A input */ +#define TEA6320_S_SB 0x06 /* stereo B */ +#define TEA6320_S_SC 0x05 /* stereo C */ +#define TEA6320_S_SD 0x04 /* stereo D */ +#define TEA6320_S_GMU 0x80 /* general mute */ + +#define TEA6420_S_SA 0x00 /* stereo A input */ +#define TEA6420_S_SB 0x01 /* stereo B */ +#define TEA6420_S_SC 0x02 /* stereo C */ +#define TEA6420_S_SD 0x03 /* stereo D */ +#define TEA6420_S_SE 0x04 /* stereo E */ +#define TEA6420_S_GMU 0x05 /* general mute */ + +static int tea6300_shift10(int val) { return val >> 10; } +static int tea6300_shift12(int val) { return val >> 12; } + +/* Assumes 16bit input (values 0x3f to 0x0c are unique, values less than */ +/* 0x0c mirror those immediately higher) */ +static int tea6320_volume(int val) { return (val / (65535/(63-12)) + 12) & 0x3f; } +static int tea6320_shift11(int val) { return val >> 11; } +static int tea6320_initialize(struct CHIPSTATE * chip) +{ + chip_write(chip, TEA6320_FFR, 0x3f); + chip_write(chip, TEA6320_FFL, 0x3f); + chip_write(chip, TEA6320_FRR, 0x3f); + chip_write(chip, TEA6320_FRL, 0x3f); + + return 0; +} + + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - defines+functions for tda8425 */ + +#define TDA8425_VL 0x00 /* volume left */ +#define TDA8425_VR 0x01 /* volume right */ +#define TDA8425_BA 0x02 /* bass */ +#define TDA8425_TR 0x03 /* treble */ +#define TDA8425_S1 0x08 /* switch functions */ + /* values for those registers: */ +#define TDA8425_S1_OFF 0xEE /* audio off (mute on) */ +#define TDA8425_S1_CH1 0xCE /* audio channel 1 (mute off) - "linear stereo" mode */ +#define TDA8425_S1_CH2 0xCF /* audio channel 2 (mute off) - "linear stereo" mode */ +#define TDA8425_S1_MU 0x20 /* mute bit */ +#define TDA8425_S1_STEREO 0x18 /* stereo bits */ +#define TDA8425_S1_STEREO_SPATIAL 0x18 /* spatial stereo */ +#define TDA8425_S1_STEREO_LINEAR 0x08 /* linear stereo */ +#define TDA8425_S1_STEREO_PSEUDO 0x10 /* pseudo stereo */ +#define TDA8425_S1_STEREO_MONO 0x00 /* forced mono */ +#define TDA8425_S1_ML 0x06 /* language selector */ +#define TDA8425_S1_ML_SOUND_A 0x02 /* sound a */ +#define TDA8425_S1_ML_SOUND_B 0x04 /* sound b */ +#define TDA8425_S1_ML_STEREO 0x06 /* stereo */ +#define TDA8425_S1_IS 0x01 /* channel selector */ + + +static int tda8425_shift10(int val) { return (val >> 10) | 0xc0; } +static int tda8425_shift12(int val) { return (val >> 12) | 0xf0; } + +static int tda8425_initialize(struct CHIPSTATE *chip) +{ + struct CHIPDESC *desc = chiplist + chip->type; + int inputmap[8] = { /* tuner */ TDA8425_S1_CH2, /* radio */ TDA8425_S1_CH1, + /* extern */ TDA8425_S1_CH1, /* intern */ TDA8425_S1_OFF, + /* off */ TDA8425_S1_OFF, /* on */ TDA8425_S1_CH2}; + + if (chip->c.adapter->id == (I2C_ALGO_BIT | I2C_HW_B_RIVA)) { + memcpy (desc->inputmap, inputmap, sizeof (inputmap)); + } + return 0; +} + +static void tda8425_setmode(struct CHIPSTATE *chip, int mode) +{ + int s1 = chip->shadow.bytes[TDA8425_S1+1] & 0xe1; + + if (mode & VIDEO_SOUND_LANG1) { + s1 |= TDA8425_S1_ML_SOUND_A; + s1 |= TDA8425_S1_STEREO_PSEUDO; + + } else if (mode & VIDEO_SOUND_LANG2) { + s1 |= TDA8425_S1_ML_SOUND_B; + s1 |= TDA8425_S1_STEREO_PSEUDO; + + } else { + s1 |= TDA8425_S1_ML_STEREO; + + if (mode & VIDEO_SOUND_MONO) + s1 |= TDA8425_S1_STEREO_MONO; + if (mode & VIDEO_SOUND_STEREO) + s1 |= TDA8425_S1_STEREO_SPATIAL; + } + chip_write(chip,TDA8425_S1,s1); +} + + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - defines+functions for pic16c54 (PV951) */ + +/* the registers of 16C54, I2C sub address. */ +#define PIC16C54_REG_KEY_CODE 0x01 /* Not use. */ +#define PIC16C54_REG_MISC 0x02 + +/* bit definition of the RESET register, I2C data. */ +#define PIC16C54_MISC_RESET_REMOTE_CTL 0x01 /* bit 0, Reset to receive the key */ + /* code of remote controller */ +#define PIC16C54_MISC_MTS_MAIN 0x02 /* bit 1 */ +#define PIC16C54_MISC_MTS_SAP 0x04 /* bit 2 */ +#define PIC16C54_MISC_MTS_BOTH 0x08 /* bit 3 */ +#define PIC16C54_MISC_SND_MUTE 0x10 /* bit 4, Mute Audio(Line-in and Tuner) */ +#define PIC16C54_MISC_SND_NOTMUTE 0x20 /* bit 5 */ +#define PIC16C54_MISC_SWITCH_TUNER 0x40 /* bit 6 , Switch to Line-in */ +#define PIC16C54_MISC_SWITCH_LINE 0x80 /* bit 7 , Switch to Tuner */ + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - defines+functions for TA8874Z */ + +// write 1st byte +#define TA8874Z_LED_STE 0x80 +#define TA8874Z_LED_BIL 0x40 +#define TA8874Z_LED_EXT 0x20 +#define TA8874Z_MONO_SET 0x10 +#define TA8874Z_MUTE 0x08 +#define TA8874Z_F_MONO 0x04 +#define TA8874Z_MODE_SUB 0x02 +#define TA8874Z_MODE_MAIN 0x01 + +// write 2nd byte +//#define TA8874Z_TI 0x80 // test mode +#define TA8874Z_SEPARATION 0x3f +#define TA8874Z_SEPARATION_DEFAULT 0x10 + +// read +#define TA8874Z_B1 0x80 +#define TA8874Z_B0 0x40 +#define TA8874Z_CHAG_FLAG 0x20 + +// B1 B0 +// mono L H +// stereo L L +// BIL H L + +static int ta8874z_getmode(struct CHIPSTATE *chip) +{ + int val, mode; + + val = chip_read(chip); + mode = VIDEO_SOUND_MONO; + if (val & TA8874Z_B1){ + mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2; + }else if (!(val & TA8874Z_B0)){ + mode |= VIDEO_SOUND_STEREO; + } + //dprintk ("ta8874z_getmode(): raw chip read: 0x%02x, return: 0x%02x\n", val, mode); + return mode; +} + +static audiocmd ta8874z_stereo = { 2, {0, TA8874Z_SEPARATION_DEFAULT}}; +static audiocmd ta8874z_mono = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}}; +static audiocmd ta8874z_main = {2, { 0, TA8874Z_SEPARATION_DEFAULT}}; +static audiocmd ta8874z_sub = {2, { TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}}; + +static void ta8874z_setmode(struct CHIPSTATE *chip, int mode) +{ + int update = 1; + audiocmd *t = NULL; + dprintk("ta8874z_setmode(): mode: 0x%02x\n", mode); + + switch(mode){ + case VIDEO_SOUND_MONO: + t = &ta8874z_mono; + break; + case VIDEO_SOUND_STEREO: + t = &ta8874z_stereo; + break; + case VIDEO_SOUND_LANG1: + t = &ta8874z_main; + break; + case VIDEO_SOUND_LANG2: + t = &ta8874z_sub; + break; + default: + update = 0; + } + + if(update) + chip_cmd(chip, "TA8874Z", t); +} + +static int ta8874z_checkit(struct CHIPSTATE *chip) +{ + int rc; + rc = chip_read(chip); + return ((rc & 0x1f) == 0x1f) ? 1 : 0; +} + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - struct CHIPDESC */ + +/* insmod options to enable/disable individual audio chips */ +int tda8425 = 1; +int tda9840 = 1; +int tda9850 = 1; +int tda9855 = 1; +int tda9873 = 1; +int tda9874a = 1; +int tea6300 = 0; // address clash with msp34xx +int tea6320 = 0; // address clash with msp34xx +int tea6420 = 1; +int pic16c54 = 1; +int ta8874z = 0; // address clash with tda9840 + +module_param(tda8425, int, 0444); +module_param(tda9840, int, 0444); +module_param(tda9850, int, 0444); +module_param(tda9855, int, 0444); +module_param(tda9873, int, 0444); +module_param(tda9874a, int, 0444); +module_param(tea6300, int, 0444); +module_param(tea6320, int, 0444); +module_param(tea6420, int, 0444); +module_param(pic16c54, int, 0444); +module_param(ta8874z, int, 0444); + +static struct CHIPDESC chiplist[] = { + { + .name = "tda9840", + .id = I2C_DRIVERID_TDA9840, + .insmodopt = &tda9840, + .addr_lo = I2C_TDA9840 >> 1, + .addr_hi = I2C_TDA9840 >> 1, + .registers = 5, + + .getmode = tda9840_getmode, + .setmode = tda9840_setmode, + .checkmode = generic_checkmode, + + .init = { 2, { TDA9840_TEST, TDA9840_TEST_INT1SN + /* ,TDA9840_SW, TDA9840_MONO */} } + }, + { + .name = "tda9873h", + .id = I2C_DRIVERID_TDA9873, + .checkit = tda9873_checkit, + .insmodopt = &tda9873, + .addr_lo = I2C_TDA985x_L >> 1, + .addr_hi = I2C_TDA985x_H >> 1, + .registers = 3, + .flags = CHIP_HAS_INPUTSEL, + + .getmode = tda9873_getmode, + .setmode = tda9873_setmode, + .checkmode = generic_checkmode, + + .init = { 4, { TDA9873_SW, 0xa4, 0x06, 0x03 } }, + .inputreg = TDA9873_SW, + .inputmute = TDA9873_MUTE | TDA9873_AUTOMUTE, + .inputmap = {0xa0, 0xa2, 0xa0, 0xa0, 0xc0}, + .inputmask = TDA9873_INP_MASK|TDA9873_MUTE|TDA9873_AUTOMUTE, + + }, + { + .name = "tda9874h/a", + .id = I2C_DRIVERID_TDA9874, + .checkit = tda9874a_checkit, + .initialize = tda9874a_initialize, + .insmodopt = &tda9874a, + .addr_lo = I2C_TDA9874 >> 1, + .addr_hi = I2C_TDA9874 >> 1, + + .getmode = tda9874a_getmode, + .setmode = tda9874a_setmode, + .checkmode = generic_checkmode, + }, + { + .name = "tda9850", + .id = I2C_DRIVERID_TDA9850, + .insmodopt = &tda9850, + .addr_lo = I2C_TDA985x_L >> 1, + .addr_hi = I2C_TDA985x_H >> 1, + .registers = 11, + + .getmode = tda985x_getmode, + .setmode = tda985x_setmode, + + .init = { 8, { TDA9850_C4, 0x08, 0x08, TDA985x_STEREO, 0x07, 0x10, 0x10, 0x03 } } + }, + { + .name = "tda9855", + .id = I2C_DRIVERID_TDA9855, + .insmodopt = &tda9855, + .addr_lo = I2C_TDA985x_L >> 1, + .addr_hi = I2C_TDA985x_H >> 1, + .registers = 11, + .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE, + + .leftreg = TDA9855_VL, + .rightreg = TDA9855_VR, + .bassreg = TDA9855_BA, + .treblereg = TDA9855_TR, + .volfunc = tda9855_volume, + .bassfunc = tda9855_bass, + .treblefunc = tda9855_treble, + + .getmode = tda985x_getmode, + .setmode = tda985x_setmode, + + .init = { 12, { 0, 0x6f, 0x6f, 0x0e, 0x07<<1, 0x8<<2, + TDA9855_MUTE | TDA9855_AVL | TDA9855_LOUD | TDA9855_INT, + TDA985x_STEREO | TDA9855_LINEAR | TDA9855_TZCM | TDA9855_VZCM, + 0x07, 0x10, 0x10, 0x03 }} + }, + { + .name = "tea6300", + .id = I2C_DRIVERID_TEA6300, + .insmodopt = &tea6300, + .addr_lo = I2C_TEA6300 >> 1, + .addr_hi = I2C_TEA6300 >> 1, + .registers = 6, + .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL, + + .leftreg = TEA6300_VR, + .rightreg = TEA6300_VL, + .bassreg = TEA6300_BA, + .treblereg = TEA6300_TR, + .volfunc = tea6300_shift10, + .bassfunc = tea6300_shift12, + .treblefunc = tea6300_shift12, + + .inputreg = TEA6300_S, + .inputmap = { TEA6300_S_SA, TEA6300_S_SB, TEA6300_S_SC }, + .inputmute = TEA6300_S_GMU, + }, + { + .name = "tea6320", + .id = I2C_DRIVERID_TEA6300, + .initialize = tea6320_initialize, + .insmodopt = &tea6320, + .addr_lo = I2C_TEA6300 >> 1, + .addr_hi = I2C_TEA6300 >> 1, + .registers = 8, + .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL, + + .leftreg = TEA6320_V, + .rightreg = TEA6320_V, + .bassreg = TEA6320_BA, + .treblereg = TEA6320_TR, + .volfunc = tea6320_volume, + .bassfunc = tea6320_shift11, + .treblefunc = tea6320_shift11, + + .inputreg = TEA6320_S, + .inputmap = { TEA6320_S_SA, TEA6420_S_SB, TEA6300_S_SC, TEA6320_S_SD }, + .inputmute = TEA6300_S_GMU, + }, + { + .name = "tea6420", + .id = I2C_DRIVERID_TEA6420, + .insmodopt = &tea6420, + .addr_lo = I2C_TEA6420 >> 1, + .addr_hi = I2C_TEA6420 >> 1, + .registers = 1, + .flags = CHIP_HAS_INPUTSEL, + + .inputreg = -1, + .inputmap = { TEA6420_S_SA, TEA6420_S_SB, TEA6420_S_SC }, + .inputmute = TEA6300_S_GMU, + }, + { + .name = "tda8425", + .id = I2C_DRIVERID_TDA8425, + .insmodopt = &tda8425, + .addr_lo = I2C_TDA8425 >> 1, + .addr_hi = I2C_TDA8425 >> 1, + .registers = 9, + .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL, + + .leftreg = TDA8425_VL, + .rightreg = TDA8425_VR, + .bassreg = TDA8425_BA, + .treblereg = TDA8425_TR, + .volfunc = tda8425_shift10, + .bassfunc = tda8425_shift12, + .treblefunc = tda8425_shift12, + + .inputreg = TDA8425_S1, + .inputmap = { TDA8425_S1_CH1, TDA8425_S1_CH1, TDA8425_S1_CH1 }, + .inputmute = TDA8425_S1_OFF, + + .setmode = tda8425_setmode, + .initialize = tda8425_initialize, + }, + { + .name = "pic16c54 (PV951)", + .id = I2C_DRIVERID_PIC16C54_PV951, + .insmodopt = &pic16c54, + .addr_lo = I2C_PIC16C54 >> 1, + .addr_hi = I2C_PIC16C54>> 1, + .registers = 2, + .flags = CHIP_HAS_INPUTSEL, + + .inputreg = PIC16C54_REG_MISC, + .inputmap = {PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_TUNER, + PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE, + PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE, + PIC16C54_MISC_SND_MUTE,PIC16C54_MISC_SND_MUTE, + PIC16C54_MISC_SND_NOTMUTE}, + .inputmute = PIC16C54_MISC_SND_MUTE, + }, + { + .name = "ta8874z", + .id = -1, + //.id = I2C_DRIVERID_TA8874Z, + .checkit = ta8874z_checkit, + .insmodopt = &ta8874z, + .addr_lo = I2C_TDA9840 >> 1, + .addr_hi = I2C_TDA9840 >> 1, + .registers = 2, + + .getmode = ta8874z_getmode, + .setmode = ta8874z_setmode, + .checkmode = generic_checkmode, + + .init = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}}, + }, + { .name = NULL } /* EOF */ +}; + + +/* ---------------------------------------------------------------------- */ +/* i2c registration */ + +static int chip_attach(struct i2c_adapter *adap, int addr, int kind) +{ + struct CHIPSTATE *chip; + struct CHIPDESC *desc; + + chip = kmalloc(sizeof(*chip),GFP_KERNEL); + if (!chip) + return -ENOMEM; + memset(chip,0,sizeof(*chip)); + memcpy(&chip->c,&client_template,sizeof(struct i2c_client)); + chip->c.adapter = adap; + chip->c.addr = addr; + i2c_set_clientdata(&chip->c, chip); + + /* find description for the chip */ + dprintk("tvaudio: chip found @ i2c-addr=0x%x\n", addr<<1); + for (desc = chiplist; desc->name != NULL; desc++) { + if (0 == *(desc->insmodopt)) + continue; + if (addr < desc->addr_lo || + addr > desc->addr_hi) + continue; + if (desc->checkit && !desc->checkit(chip)) + continue; + break; + } + if (desc->name == NULL) { + dprintk("tvaudio: no matching chip description found\n"); + return -EIO; + } + printk("tvaudio: found %s @ 0x%x\n", desc->name, addr<<1); + dprintk("tvaudio: matches:%s%s%s.\n", + (desc->flags & CHIP_HAS_VOLUME) ? " volume" : "", + (desc->flags & CHIP_HAS_BASSTREBLE) ? " bass/treble" : "", + (desc->flags & CHIP_HAS_INPUTSEL) ? " audiomux" : ""); + + /* fill required data structures */ + strcpy(i2c_clientname(&chip->c),desc->name); + chip->type = desc-chiplist; + chip->shadow.count = desc->registers+1; + chip->prevmode = -1; + /* register */ + i2c_attach_client(&chip->c); + + /* initialization */ + if (desc->initialize != NULL) + desc->initialize(chip); + else + chip_cmd(chip,"init",&desc->init); + + if (desc->flags & CHIP_HAS_VOLUME) { + chip->left = desc->leftinit ? desc->leftinit : 65535; + chip->right = desc->rightinit ? desc->rightinit : 65535; + chip_write(chip,desc->leftreg,desc->volfunc(chip->left)); + chip_write(chip,desc->rightreg,desc->volfunc(chip->right)); + } + if (desc->flags & CHIP_HAS_BASSTREBLE) { + chip->treble = desc->trebleinit ? desc->trebleinit : 32768; + chip->bass = desc->bassinit ? desc->bassinit : 32768; + chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass)); + chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble)); + } + + chip->tpid = -1; + if (desc->checkmode) { + /* start async thread */ + init_timer(&chip->wt); + chip->wt.function = chip_thread_wake; + chip->wt.data = (unsigned long)chip; + init_waitqueue_head(&chip->wq); + init_completion(&chip->texit); + chip->tpid = kernel_thread(chip_thread,(void *)chip,0); + if (chip->tpid < 0) + printk(KERN_WARNING "%s: kernel_thread() failed\n", + i2c_clientname(&chip->c)); + wake_up_interruptible(&chip->wq); + } + return 0; +} + +static int chip_probe(struct i2c_adapter *adap) +{ + /* don't attach on saa7146 based cards, + because dedicated drivers are used */ + if ((adap->id & I2C_ALGO_SAA7146)) + return 0; +#ifdef I2C_CLASS_TV_ANALOG + if (adap->class & I2C_CLASS_TV_ANALOG) + return i2c_probe(adap, &addr_data, chip_attach); +#else + switch (adap->id) { + case I2C_ALGO_BIT | I2C_HW_B_BT848: + case I2C_ALGO_BIT | I2C_HW_B_RIVA: + case I2C_ALGO_SAA7134: + return i2c_probe(adap, &addr_data, chip_attach); + } +#endif + return 0; +} + +static int chip_detach(struct i2c_client *client) +{ + struct CHIPSTATE *chip = i2c_get_clientdata(client); + + del_timer_sync(&chip->wt); + if (chip->tpid >= 0) { + /* shutdown async thread */ + chip->done = 1; + wake_up_interruptible(&chip->wq); + wait_for_completion(&chip->texit); + } + + i2c_detach_client(&chip->c); + kfree(chip); + return 0; +} + +/* ---------------------------------------------------------------------- */ +/* video4linux interface */ + +static int chip_command(struct i2c_client *client, + unsigned int cmd, void *arg) +{ + __u16 *sarg = arg; + struct CHIPSTATE *chip = i2c_get_clientdata(client); + struct CHIPDESC *desc = chiplist + chip->type; + + dprintk("%s: chip_command 0x%x\n",i2c_clientname(&chip->c),cmd); + + switch (cmd) { + case AUDC_SET_INPUT: + if (desc->flags & CHIP_HAS_INPUTSEL) { + if (*sarg & 0x80) + chip_write_masked(chip,desc->inputreg,desc->inputmute,desc->inputmask); + else + chip_write_masked(chip,desc->inputreg,desc->inputmap[*sarg],desc->inputmask); + } + break; + + case AUDC_SET_RADIO: + dprintk(KERN_DEBUG "tvaudio: AUDC_SET_RADIO\n"); + chip->norm = VIDEO_MODE_RADIO; + chip->watch_stereo = 0; + /* del_timer(&chip->wt); */ + break; + + /* --- v4l ioctls --- */ + /* take care: bttv does userspace copying, we'll get a + kernel pointer here... */ + case VIDIOCGAUDIO: + { + struct video_audio *va = arg; + + if (desc->flags & CHIP_HAS_VOLUME) { + va->flags |= VIDEO_AUDIO_VOLUME; + va->volume = max(chip->left,chip->right); + if (va->volume) + va->balance = (32768*min(chip->left,chip->right))/ + va->volume; + else + va->balance = 32768; + } + if (desc->flags & CHIP_HAS_BASSTREBLE) { + va->flags |= VIDEO_AUDIO_BASS | VIDEO_AUDIO_TREBLE; + va->bass = chip->bass; + va->treble = chip->treble; + } + if (chip->norm != VIDEO_MODE_RADIO) { + if (desc->getmode) + va->mode = desc->getmode(chip); + else + va->mode = VIDEO_SOUND_MONO; + } + break; + } + + case VIDIOCSAUDIO: + { + struct video_audio *va = arg; + + if (desc->flags & CHIP_HAS_VOLUME) { + chip->left = (min(65536 - va->balance,32768) * + va->volume) / 32768; + chip->right = (min(va->balance,(__u16)32768) * + va->volume) / 32768; + chip_write(chip,desc->leftreg,desc->volfunc(chip->left)); + chip_write(chip,desc->rightreg,desc->volfunc(chip->right)); + } + if (desc->flags & CHIP_HAS_BASSTREBLE) { + chip->bass = va->bass; + chip->treble = va->treble; + chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass)); + chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble)); + } + if (desc->setmode && va->mode) { + chip->watch_stereo = 0; + /* del_timer(&chip->wt); */ + chip->mode = va->mode; + desc->setmode(chip,va->mode); + } + break; + } + case VIDIOCSCHAN: + { + struct video_channel *vc = arg; + + dprintk(KERN_DEBUG "tvaudio: VIDIOCSCHAN\n"); + chip->norm = vc->norm; + break; + } + case VIDIOCSFREQ: + { + chip->mode = 0; /* automatic */ + if (desc->checkmode) { + desc->setmode(chip,VIDEO_SOUND_MONO); + if (chip->prevmode != VIDEO_SOUND_MONO) + chip->prevmode = -1; /* reset previous mode */ + mod_timer(&chip->wt, jiffies+2*HZ); + /* the thread will call checkmode() later */ + } + } + } + return 0; +} + + +static struct i2c_driver driver = { + .owner = THIS_MODULE, + .name = "generic i2c audio driver", + .id = I2C_DRIVERID_TVAUDIO, + .flags = I2C_DF_NOTIFY, + .attach_adapter = chip_probe, + .detach_client = chip_detach, + .command = chip_command, +}; + +static struct i2c_client client_template = +{ + I2C_DEVNAME("(unset)"), + .flags = I2C_CLIENT_ALLOW_USE, + .driver = &driver, +}; + +static int __init audiochip_init_module(void) +{ + struct CHIPDESC *desc; + printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux driver\n"); + printk(KERN_INFO "tvaudio: known chips: "); + for (desc = chiplist; desc->name != NULL; desc++) + printk("%s%s", (desc == chiplist) ? "" : ",",desc->name); + printk("\n"); + + return i2c_add_driver(&driver); +} + +static void __exit audiochip_cleanup_module(void) +{ + i2c_del_driver(&driver); +} + +module_init(audiochip_init_module); +module_exit(audiochip_cleanup_module); + +/* + * Local variables: + * c-basic-offset: 8 + * End: + */ |
