tvaudio.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:46k
- /*
- * 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/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 "audiochip.h"
- #include "tvaudio.h"
- #include "id.h"
- /* ---------------------------------------------------------------------- */
- /* insmod args */
- MODULE_PARM(debug,"i");
- static int debug = 0; /* insmod parameter */
- #define dprintk if (debug) printk
- 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");
- /* ---------------------------------------------------------------------- */
- /* 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 */
- struct task_struct *thread;
- struct semaphore *notify;
- 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 };
- static unsigned short probe[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
- static unsigned short probe_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
- static unsigned short ignore[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
- static unsigned short ignore_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
- static unsigned short force[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
- static struct i2c_client_address_data addr_data = {
- normal_i2c, normal_i2c_range,
- probe, probe_range,
- ignore, ignore_range,
- force
- };
- 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%xn", chip->c.name, 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",
- chip->c.name, val);
- return -1;
- }
- } else {
- dprintk("%s: chip_write: reg%d=0x%xn", chip->c.name, 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",
- chip->c.name, 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",
- chip->c.name);
- return -1;
- }
- dprintk("%s: chip_read: 0x%xn",chip->c.name,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",
- chip->c.name);
- return -1;
- }
- dprintk("%s: chip_read2: reg%d=0x%xn",
- chip->c.name,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:",
- chip->c.name,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", chip->c.name, 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)
- {
- struct CHIPSTATE *chip = data;
- struct CHIPDESC *desc = chiplist + chip->type;
-
- #ifdef CONFIG_SMP
- lock_kernel();
- #endif
- daemonize();
- sigfillset(¤t->blocked);
- strcpy(current->comm,chip->c.name);
- chip->thread = current;
- #ifdef CONFIG_SMP
- unlock_kernel();
- #endif
- dprintk("%s: thread startedn", chip->c.name);
- if(chip->notify != NULL)
- up(chip->notify);
- for (;;) {
- interruptible_sleep_on(&chip->wq);
- dprintk("%s: thread wakeupn", chip->c.name);
- if (chip->done || signal_pending(current))
- break;
- /* 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);
- }
- chip->thread = NULL;
- dprintk("%s: thread exitingn", chip->c.name);
- if(chip->notify != NULL)
- up(chip->notify);
- 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 checkmoden", chip->c.name);
- 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: %dn",
- 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: %dn",
- 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 inputn");
- return;
- }
-
- dprintk("tda9873_setmode(): chip->shadow.bytes[%d] = %dn", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]);
- dprintk("tda9873_setmode(): sw_data = %dn", 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: %dn",
- 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 int tda9874a_SIF = -1;
- static int tda9874a_AMSEL = -1;
- static int tda9874a_STD = -1;
- MODULE_PARM(tda9874a_SIF,"i");
- MODULE_PARM(tda9874a_AMSEL,"i");
- MODULE_PARM(tda9874a_STD,"i");
- /*
- * 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)) {
- dprintk("tvaudio: found tda9874%s.n",(dic == 0x11) ? "a (new)":"h (old)");
- tda9874a_dic = dic; /* remember device id. */
- return 1;
- }
- return 0; /* not found */
- }
- static int tda9874a_initialize(struct CHIPSTATE *chip)
- {
- if(tda9874a_SIF != -1) {
- if(tda9874a_SIF == 1)
- tda9874a_GCONR = 0xc0; /* sound IF input 1 */
- else if(tda9874a_SIF == 2)
- tda9874a_GCONR = 0xc1; /* sound IF input 2 */
- else
- printk(KERN_WARNING "tda9874a: SIF parameter must be 1 or 2.n");
- }
- if(tda9874a_STD != -1) {
- if((tda9874a_STD >= 0)&&(tda9874a_STD <= 8)) {
- tda9874a_ESP = tda9874a_STD;
- tda9874a_mode = (tda9874a_STD < 5) ? 0 : 1;
- } else {
- printk(KERN_WARNING "tda9874a: STD parameter must be between 0 and 8.n");
- }
- }
- if(tda9874a_AMSEL != -1) {
- if(tda9874a_AMSEL == 0)
- tda9874a_NCONR = 0x01; /* auto-mute: analog mono input */
- else if(tda9874a_AMSEL == 1)
- tda9874a_NCONR = 0x05; /* auto-mute: 1st carrier FM or AM */
- else
- printk(KERN_WARNING "tda9874a: AMSEL parameter must be 0 or 1.n");
- }
- 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 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; }
- /* ---------------------------------------------------------------------- */
- /* 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 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 - 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;
- int tea6420 = 1;
- int pic16c54 = 1;
- MODULE_PARM(tda8425,"i");
- MODULE_PARM(tda9840,"i");
- MODULE_PARM(tda9850,"i");
- MODULE_PARM(tda9855,"i");
- MODULE_PARM(tda9873,"i");
- MODULE_PARM(tda9874a,"i");
- MODULE_PARM(tea6300,"i");
- MODULE_PARM(tea6420,"i");
- MODULE_PARM(pic16c54,"i");
- 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: "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_VR,
- rightreg: TDA8425_VL,
- 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,
- },
- {
- 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: NULL } /* EOF */
- };
- /* ---------------------------------------------------------------------- */
- /* i2c registration */
- static int chip_attach(struct i2c_adapter *adap, int addr,
- unsigned short flags, 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;
- chip->c.data = chip;
- /* find description for the chip */
- dprintk("tvaudio: chip found @ i2c-addr=0x%xn", 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 foundn");
- return -EIO;
- }
- printk("tvaudio: found %sn",desc->name);
- 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(chip->c.name,desc->name);
- chip->type = desc-chiplist;
- chip->shadow.count = desc->registers+1;
- chip->prevmode = -1;
- /* register */
- MOD_INC_USE_COUNT;
- 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));
- }
- if (desc->checkmode) {
- /* start async thread */
- DECLARE_MUTEX_LOCKED(sem);
- chip->notify = &sem;
- chip->wt.function = chip_thread_wake;
- chip->wt.data = (unsigned long)chip;
- init_waitqueue_head(&chip->wq);
- kernel_thread(chip_thread,(void *)chip,0);
- down(&sem);
- chip->notify = NULL;
- wake_up_interruptible(&chip->wq);
- }
- return 0;
- }
- static int chip_probe(struct i2c_adapter *adap)
- {
- switch (adap->id) {
- case I2C_ALGO_BIT | I2C_HW_B_BT848:
- case I2C_ALGO_BIT | I2C_HW_B_RIVA:
- return i2c_probe(adap, &addr_data, chip_attach);
- default:
- /* ignore this i2c bus */
- return 0;
- }
- }
- static int chip_detach(struct i2c_client *client)
- {
- struct CHIPSTATE *chip = client->data;
- del_timer(&chip->wt);
- if (NULL != chip->thread) {
- /* shutdown async thread */
- DECLARE_MUTEX_LOCKED(sem);
- chip->notify = &sem;
- chip->done = 1;
- wake_up_interruptible(&chip->wq);
- down(&sem);
- chip->notify = NULL;
- }
-
- i2c_detach_client(&chip->c);
- kfree(chip);
- MOD_DEC_USE_COUNT;
- return 0;
- }
- /* ---------------------------------------------------------------------- */
- /* video4linux interface */
- static int chip_command(struct i2c_client *client,
- unsigned int cmd, void *arg)
- {
- __u16 *sarg = arg;
- struct CHIPSTATE *chip = client->data;
- struct CHIPDESC *desc = chiplist + chip->type;
- dprintk("%s: chip_command 0x%xn",chip->c.name,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_RADIOn");
- 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);
- va->balance = (32768*MIN(chip->left,chip->right))/
- (va->volume ? va->volume : 1);
- }
- 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,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: VIDIOCSCHANn");
- 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 = {
- 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 =
- {
- name: "(unset)",
- flags: I2C_CLIENT_ALLOW_USE,
- driver: &driver,
- };
- static int audiochip_init_module(void)
- {
- struct CHIPDESC *desc;
- printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux drivern");
- printk(KERN_INFO "tvaudio: known chips: ");
- for (desc = chiplist; desc->name != NULL; desc++)
- printk("%s%s", (desc == chiplist) ? "" : ",",desc->name);
- printk("n");
- i2c_add_driver(&driver);
- return 0;
- }
- static void 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:
- */