2 * Driver for simple i2c audio chips.
4 * Copyright (c) 2000 Gerd Knorr
6 * Eric Sandeen (eric_sandeen@bigfoot.com)
7 * Steve VanDeBogart (vandebo@uclink.berkeley.edu)
8 * Greg Alexander (galexand@acm.org)
10 * Copyright(c) 2005-2008 Mauro Carvalho Chehab
11 * - Some cleanups, code fixes, etc
12 * - Convert it to V4L2 API
14 * This code is placed under the terms of the GNU General Public License
17 * debug - set to 1 if you'd like to see debug messages
21 #include <linux/module.h>
22 #include <linux/kernel.h>
23 #include <linux/sched.h>
24 #include <linux/string.h>
25 #include <linux/timer.h>
26 #include <linux/delay.h>
27 #include <linux/errno.h>
28 #include <linux/slab.h>
29 #include <linux/videodev.h>
30 #include <linux/i2c.h>
31 #include <linux/init.h>
32 #include <linux/kthread.h>
33 #include <linux/freezer.h>
35 #include <media/tvaudio.h>
36 #include <media/v4l2-device.h>
37 #include <media/v4l2-chip-ident.h>
38 #include <media/v4l2-i2c-drv-legacy.h>
40 #include <media/i2c-addr.h>
42 /* ---------------------------------------------------------------------- */
45 static int debug; /* insmod parameter */
46 module_param(debug, int, 0644);
48 MODULE_DESCRIPTION("device driver for various i2c TV sound decoder / audiomux chips");
49 MODULE_AUTHOR("Eric Sandeen, Steve VanDeBogart, Greg Alexander, Gerd Knorr");
50 MODULE_LICENSE("GPL");
54 /* ---------------------------------------------------------------------- */
60 typedef int (*getvalue)(int);
61 typedef int (*checkit)(struct CHIPSTATE*);
62 typedef int (*initialize)(struct CHIPSTATE*);
63 typedef int (*getmode)(struct CHIPSTATE*);
64 typedef void (*setmode)(struct CHIPSTATE*, int mode);
67 typedef struct AUDIOCMD {
68 int count; /* # of bytes to send */
69 unsigned char bytes[MAXREGS+1]; /* addr, data, data, ... */
72 /* chip description */
74 char *name; /* chip name */
75 int addr_lo, addr_hi; /* i2c address range */
76 int registers; /* # of registers */
80 initialize initialize;
82 #define CHIP_HAS_VOLUME 1
83 #define CHIP_HAS_BASSTREBLE 2
84 #define CHIP_HAS_INPUTSEL 4
85 #define CHIP_NEED_CHECKMODE 8
87 /* various i2c command sequences */
90 /* which register has which value */
91 int leftreg,rightreg,treblereg,bassreg;
93 /* initialize with (defaults to 65535/65535/32768/32768 */
94 int leftinit,rightinit,trebleinit,bassinit;
96 /* functions to convert the values (v4l -> chip) */
97 getvalue volfunc,treblefunc,bassfunc;
103 /* input switch register + values for v4l inputs */
110 /* current state of the chip */
112 struct v4l2_subdev sd;
114 /* chip-specific description - should point to
115 an entry at CHIPDESC table */
116 struct CHIPDESC *desc;
118 /* shadow register set */
121 /* current settings */
122 __u16 left,right,treble,bass,muted,mode;
128 struct task_struct *thread;
129 struct timer_list wt;
134 static inline struct CHIPSTATE *to_state(struct v4l2_subdev *sd)
136 return container_of(sd, struct CHIPSTATE, sd);
139 /* ---------------------------------------------------------------------- */
142 static unsigned short normal_i2c[] = {
143 I2C_ADDR_TDA8425 >> 1,
144 I2C_ADDR_TEA6300 >> 1,
145 I2C_ADDR_TEA6420 >> 1,
146 I2C_ADDR_TDA9840 >> 1,
147 I2C_ADDR_TDA985x_L >> 1,
148 I2C_ADDR_TDA985x_H >> 1,
149 I2C_ADDR_TDA9874 >> 1,
150 I2C_ADDR_PIC16C54 >> 1,
154 /* ---------------------------------------------------------------------- */
155 /* i2c I/O functions */
157 static int chip_write(struct CHIPSTATE *chip, int subaddr, int val)
159 struct v4l2_subdev *sd = &chip->sd;
160 struct i2c_client *c = v4l2_get_subdevdata(sd);
161 unsigned char buffer[2];
164 v4l2_dbg(1, debug, sd, "chip_write: 0x%x\n", val);
165 chip->shadow.bytes[1] = val;
167 if (1 != i2c_master_send(c, buffer, 1)) {
168 v4l2_warn(sd, "I/O error (write 0x%x)\n", val);
172 if (subaddr + 1 >= ARRAY_SIZE(chip->shadow.bytes)) {
174 "Tried to access a non-existent register: %d\n",
179 v4l2_dbg(1, debug, sd, "chip_write: reg%d=0x%x\n",
181 chip->shadow.bytes[subaddr+1] = val;
184 if (2 != i2c_master_send(c, buffer, 2)) {
185 v4l2_warn(sd, "I/O error (write reg%d=0x%x)\n",
193 static int chip_write_masked(struct CHIPSTATE *chip,
194 int subaddr, int val, int mask)
196 struct v4l2_subdev *sd = &chip->sd;
200 val = (chip->shadow.bytes[1] & ~mask) | (val & mask);
202 if (subaddr + 1 >= ARRAY_SIZE(chip->shadow.bytes)) {
204 "Tried to access a non-existent register: %d\n",
209 val = (chip->shadow.bytes[subaddr+1] & ~mask) | (val & mask);
212 return chip_write(chip, subaddr, val);
215 static int chip_read(struct CHIPSTATE *chip)
217 struct v4l2_subdev *sd = &chip->sd;
218 struct i2c_client *c = v4l2_get_subdevdata(sd);
219 unsigned char buffer;
221 if (1 != i2c_master_recv(c, &buffer, 1)) {
222 v4l2_warn(sd, "I/O error (read)\n");
225 v4l2_dbg(1, debug, sd, "chip_read: 0x%x\n", buffer);
229 static int chip_read2(struct CHIPSTATE *chip, int subaddr)
231 struct v4l2_subdev *sd = &chip->sd;
232 struct i2c_client *c = v4l2_get_subdevdata(sd);
233 unsigned char write[1];
234 unsigned char read[1];
235 struct i2c_msg msgs[2] = {
236 { c->addr, 0, 1, write },
237 { c->addr, I2C_M_RD, 1, read }
242 if (2 != i2c_transfer(c->adapter, msgs, 2)) {
243 v4l2_warn(sd, "I/O error (read2)\n");
246 v4l2_dbg(1, debug, sd, "chip_read2: reg%d=0x%x\n",
251 static int chip_cmd(struct CHIPSTATE *chip, char *name, audiocmd *cmd)
253 struct v4l2_subdev *sd = &chip->sd;
254 struct i2c_client *c = v4l2_get_subdevdata(sd);
260 if (cmd->count + cmd->bytes[0] - 1 >= ARRAY_SIZE(chip->shadow.bytes)) {
262 "Tried to access a non-existent register range: %d to %d\n",
263 cmd->bytes[0] + 1, cmd->bytes[0] + cmd->count - 1);
267 /* FIXME: it seems that the shadow bytes are wrong bellow !*/
269 /* update our shadow register set; print bytes if (debug > 0) */
270 v4l2_dbg(1, debug, sd, "chip_cmd(%s): reg=%d, data:",
271 name, cmd->bytes[0]);
272 for (i = 1; i < cmd->count; i++) {
274 printk(KERN_CONT " 0x%x", cmd->bytes[i]);
275 chip->shadow.bytes[i+cmd->bytes[0]] = cmd->bytes[i];
278 printk(KERN_CONT "\n");
280 /* send data to the chip */
281 if (cmd->count != i2c_master_send(c, cmd->bytes, cmd->count)) {
282 v4l2_warn(sd, "I/O error (%s)\n", name);
288 /* ---------------------------------------------------------------------- */
289 /* kernel thread for doing i2c stuff asyncronly
290 * right now it is used only to check the audio mode (mono/stereo/whatever)
291 * some time after switching to another TV channel, then turn on stereo
295 static void chip_thread_wake(unsigned long data)
297 struct CHIPSTATE *chip = (struct CHIPSTATE*)data;
298 wake_up_process(chip->thread);
301 static int chip_thread(void *data)
303 struct CHIPSTATE *chip = data;
304 struct CHIPDESC *desc = chip->desc;
305 struct v4l2_subdev *sd = &chip->sd;
308 v4l2_dbg(1, debug, sd, "thread started\n");
311 set_current_state(TASK_INTERRUPTIBLE);
312 if (!kthread_should_stop())
314 set_current_state(TASK_RUNNING);
316 if (kthread_should_stop())
318 v4l2_dbg(1, debug, sd, "thread wakeup\n");
320 /* don't do anything for radio or if mode != auto */
321 if (chip->radio || chip->mode != 0)
324 /* have a look what's going on */
325 mode = desc->getmode(chip);
326 if (mode == chip->prevmode)
329 /* chip detected a new audio mode - set it */
330 v4l2_dbg(1, debug, sd, "thread checkmode\n");
332 chip->prevmode = mode;
334 if (mode & V4L2_TUNER_MODE_STEREO)
335 desc->setmode(chip, V4L2_TUNER_MODE_STEREO);
336 if (mode & V4L2_TUNER_MODE_LANG1_LANG2)
337 desc->setmode(chip, V4L2_TUNER_MODE_STEREO);
338 else if (mode & V4L2_TUNER_MODE_LANG1)
339 desc->setmode(chip, V4L2_TUNER_MODE_LANG1);
340 else if (mode & V4L2_TUNER_MODE_LANG2)
341 desc->setmode(chip, V4L2_TUNER_MODE_LANG2);
343 desc->setmode(chip, V4L2_TUNER_MODE_MONO);
345 /* schedule next check */
346 mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000));
349 v4l2_dbg(1, debug, sd, "thread exiting\n");
353 /* ---------------------------------------------------------------------- */
354 /* audio chip descriptions - defines+functions for tda9840 */
356 #define TDA9840_SW 0x00
357 #define TDA9840_LVADJ 0x02
358 #define TDA9840_STADJ 0x03
359 #define TDA9840_TEST 0x04
361 #define TDA9840_MONO 0x10
362 #define TDA9840_STEREO 0x2a
363 #define TDA9840_DUALA 0x12
364 #define TDA9840_DUALB 0x1e
365 #define TDA9840_DUALAB 0x1a
366 #define TDA9840_DUALBA 0x16
367 #define TDA9840_EXTERNAL 0x7a
369 #define TDA9840_DS_DUAL 0x20 /* Dual sound identified */
370 #define TDA9840_ST_STEREO 0x40 /* Stereo sound identified */
371 #define TDA9840_PONRES 0x80 /* Power-on reset detected if = 1 */
373 #define TDA9840_TEST_INT1SN 0x1 /* Integration time 0.5s when set */
374 #define TDA9840_TEST_INTFU 0x02 /* Disables integrator function */
376 static int tda9840_getmode(struct CHIPSTATE *chip)
378 struct v4l2_subdev *sd = &chip->sd;
381 val = chip_read(chip);
382 mode = V4L2_TUNER_MODE_MONO;
383 if (val & TDA9840_DS_DUAL)
384 mode |= V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
385 if (val & TDA9840_ST_STEREO)
386 mode |= V4L2_TUNER_MODE_STEREO;
388 v4l2_dbg(1, debug, sd, "tda9840_getmode(): raw chip read: %d, return: %d\n",
393 static void tda9840_setmode(struct CHIPSTATE *chip, int mode)
396 int t = chip->shadow.bytes[TDA9840_SW + 1] & ~0x7e;
399 case V4L2_TUNER_MODE_MONO:
402 case V4L2_TUNER_MODE_STEREO:
405 case V4L2_TUNER_MODE_LANG1:
408 case V4L2_TUNER_MODE_LANG2:
416 chip_write(chip, TDA9840_SW, t);
419 static int tda9840_checkit(struct CHIPSTATE *chip)
422 rc = chip_read(chip);
423 /* lower 5 bits should be 0 */
424 return ((rc & 0x1f) == 0) ? 1 : 0;
427 /* ---------------------------------------------------------------------- */
428 /* audio chip descriptions - defines+functions for tda985x */
430 /* subaddresses for TDA9855 */
431 #define TDA9855_VR 0x00 /* Volume, right */
432 #define TDA9855_VL 0x01 /* Volume, left */
433 #define TDA9855_BA 0x02 /* Bass */
434 #define TDA9855_TR 0x03 /* Treble */
435 #define TDA9855_SW 0x04 /* Subwoofer - not connected on DTV2000 */
437 /* subaddresses for TDA9850 */
438 #define TDA9850_C4 0x04 /* Control 1 for TDA9850 */
440 /* subaddesses for both chips */
441 #define TDA985x_C5 0x05 /* Control 2 for TDA9850, Control 1 for TDA9855 */
442 #define TDA985x_C6 0x06 /* Control 3 for TDA9850, Control 2 for TDA9855 */
443 #define TDA985x_C7 0x07 /* Control 4 for TDA9850, Control 3 for TDA9855 */
444 #define TDA985x_A1 0x08 /* Alignment 1 for both chips */
445 #define TDA985x_A2 0x09 /* Alignment 2 for both chips */
446 #define TDA985x_A3 0x0a /* Alignment 3 for both chips */
448 /* Masks for bits in TDA9855 subaddresses */
449 /* 0x00 - VR in TDA9855 */
450 /* 0x01 - VL in TDA9855 */
451 /* lower 7 bits control gain from -71dB (0x28) to 16dB (0x7f)
452 * in 1dB steps - mute is 0x27 */
455 /* 0x02 - BA in TDA9855 */
456 /* lower 5 bits control bass gain from -12dB (0x06) to 16.5dB (0x19)
457 * in .5dB steps - 0 is 0x0E */
460 /* 0x03 - TR in TDA9855 */
461 /* 4 bits << 1 control treble gain from -12dB (0x3) to 12dB (0xb)
462 * in 3dB steps - 0 is 0x7 */
464 /* Masks for bits in both chips' subaddresses */
465 /* 0x04 - SW in TDA9855, C4/Control 1 in TDA9850 */
466 /* Unique to TDA9855: */
467 /* 4 bits << 2 control subwoofer/surround gain from -14db (0x1) to 14db (0xf)
468 * in 3dB steps - mute is 0x0 */
470 /* Unique to TDA9850: */
471 /* lower 4 bits control stereo noise threshold, over which stereo turns off
472 * set to values of 0x00 through 0x0f for Ster1 through Ster16 */
475 /* 0x05 - C5 - Control 1 in TDA9855 , Control 2 in TDA9850*/
476 /* Unique to TDA9855: */
477 #define TDA9855_MUTE 1<<7 /* GMU, Mute at outputs */
478 #define TDA9855_AVL 1<<6 /* AVL, Automatic Volume Level */
479 #define TDA9855_LOUD 1<<5 /* Loudness, 1==off */
480 #define TDA9855_SUR 1<<3 /* Surround / Subwoofer 1==.5(L-R) 0==.5(L+R) */
481 /* Bits 0 to 3 select various combinations
482 * of line in and line out, only the
483 * interesting ones are defined */
484 #define TDA9855_EXT 1<<2 /* Selects inputs LIR and LIL. Pins 41 & 12 */
485 #define TDA9855_INT 0 /* Selects inputs LOR and LOL. (internal) */
487 /* Unique to TDA9850: */
488 /* lower 4 bits contol SAP noise threshold, over which SAP turns off
489 * set to values of 0x00 through 0x0f for SAP1 through SAP16 */
492 /* 0x06 - C6 - Control 2 in TDA9855, Control 3 in TDA9850 */
493 /* Common to TDA9855 and TDA9850: */
494 #define TDA985x_SAP 3<<6 /* Selects SAP output, mute if not received */
495 #define TDA985x_STEREO 1<<6 /* Selects Stereo ouput, mono if not received */
496 #define TDA985x_MONO 0 /* Forces Mono output */
497 #define TDA985x_LMU 1<<3 /* Mute (LOR/LOL for 9855, OUTL/OUTR for 9850) */
499 /* Unique to TDA9855: */
500 #define TDA9855_TZCM 1<<5 /* If set, don't mute till zero crossing */
501 #define TDA9855_VZCM 1<<4 /* If set, don't change volume till zero crossing*/
502 #define TDA9855_LINEAR 0 /* Linear Stereo */
503 #define TDA9855_PSEUDO 1 /* Pseudo Stereo */
504 #define TDA9855_SPAT_30 2 /* Spatial Stereo, 30% anti-phase crosstalk */
505 #define TDA9855_SPAT_50 3 /* Spatial Stereo, 52% anti-phase crosstalk */
506 #define TDA9855_E_MONO 7 /* Forced mono - mono select elseware, so useless*/
508 /* 0x07 - C7 - Control 3 in TDA9855, Control 4 in TDA9850 */
509 /* Common to both TDA9855 and TDA9850: */
510 /* lower 4 bits control input gain from -3.5dB (0x0) to 4dB (0xF)
511 * in .5dB steps - 0dB is 0x7 */
513 /* 0x08, 0x09 - A1 and A2 (read/write) */
514 /* Common to both TDA9855 and TDA9850: */
515 /* lower 5 bites are wideband and spectral expander alignment
516 * from 0x00 to 0x1f - nominal at 0x0f and 0x10 (read/write) */
517 #define TDA985x_STP 1<<5 /* Stereo Pilot/detect (read-only) */
518 #define TDA985x_SAPP 1<<6 /* SAP Pilot/detect (read-only) */
519 #define TDA985x_STS 1<<7 /* Stereo trigger 1= <35mV 0= <30mV (write-only)*/
522 /* Common to both TDA9855 and TDA9850: */
523 /* lower 3 bits control timing current for alignment: -30% (0x0), -20% (0x1),
524 * -10% (0x2), nominal (0x3), +10% (0x6), +20% (0x5), +30% (0x4) */
525 #define TDA985x_ADJ 1<<7 /* Stereo adjust on/off (wideband and spectral */
527 static int tda9855_volume(int val) { return val/0x2e8+0x27; }
528 static int tda9855_bass(int val) { return val/0xccc+0x06; }
529 static int tda9855_treble(int val) { return (val/0x1c71+0x3)<<1; }
531 static int tda985x_getmode(struct CHIPSTATE *chip)
535 mode = ((TDA985x_STP | TDA985x_SAPP) &
536 chip_read(chip)) >> 4;
537 /* Add mono mode regardless of SAP and stereo */
538 /* Allows forced mono */
539 return mode | V4L2_TUNER_MODE_MONO;
542 static void tda985x_setmode(struct CHIPSTATE *chip, int mode)
545 int c6 = chip->shadow.bytes[TDA985x_C6+1] & 0x3f;
548 case V4L2_TUNER_MODE_MONO:
551 case V4L2_TUNER_MODE_STEREO:
552 c6 |= TDA985x_STEREO;
554 case V4L2_TUNER_MODE_LANG1:
561 chip_write(chip,TDA985x_C6,c6);
565 /* ---------------------------------------------------------------------- */
566 /* audio chip descriptions - defines+functions for tda9873h */
568 /* Subaddresses for TDA9873H */
570 #define TDA9873_SW 0x00 /* Switching */
571 #define TDA9873_AD 0x01 /* Adjust */
572 #define TDA9873_PT 0x02 /* Port */
574 /* Subaddress 0x00: Switching Data
577 * B1, B0: Input source selection
579 * 1, 0 external stereo
582 #define TDA9873_INP_MASK 3
583 #define TDA9873_INTERNAL 0
584 #define TDA9873_EXT_STEREO 2
585 #define TDA9873_EXT_MONO 1
587 /* B3, B2: output signal select
588 * B4 : transmission mode
591 * 1, 1, 1 Stereo (reversed channel)
598 #define TDA9873_TR_MASK (7 << 2)
599 #define TDA9873_TR_MONO 4
600 #define TDA9873_TR_STEREO 1 << 4
601 #define TDA9873_TR_REVERSE (1 << 3) & (1 << 2)
602 #define TDA9873_TR_DUALA 1 << 2
603 #define TDA9873_TR_DUALB 1 << 3
605 /* output level controls
606 * B5: output level switch (0 = reduced gain, 1 = normal gain)
607 * B6: mute (1 = muted)
608 * B7: auto-mute (1 = auto-mute enabled)
611 #define TDA9873_GAIN_NORMAL 1 << 5
612 #define TDA9873_MUTE 1 << 6
613 #define TDA9873_AUTOMUTE 1 << 7
615 /* Subaddress 0x01: Adjust/standard */
617 /* Lower 4 bits (C3..C0) control stereo adjustment on R channel (-0.6 - +0.7 dB)
618 * Recommended value is +0 dB
621 #define TDA9873_STEREO_ADJ 0x06 /* 0dB gain */
623 /* Bits C6..C4 control FM stantard
625 * 0, 0, 0 B/G (PAL FM)
634 #define TDA9873_DK1 2
635 #define TDA9873_DK2 3
636 #define TDA9873_DK3 4
639 /* C7 controls identification response time (1=fast/0=normal)
641 #define TDA9873_IDR_NORM 0
642 #define TDA9873_IDR_FAST 1 << 7
645 /* Subaddress 0x02: Port data */
647 /* E1, E0 free programmable ports P1/P2
654 #define TDA9873_PORTS 3
657 #define TDA9873_TST_PORT 1 << 2
659 /* E5..E3 control mono output channel (together with transmission mode bit B4)
664 * 0 1 0 1 mono (from stereo decoder)
666 #define TDA9873_MOUT_MONO 0
667 #define TDA9873_MOUT_FMONO 0
668 #define TDA9873_MOUT_DUALA 0
669 #define TDA9873_MOUT_DUALB 1 << 3
670 #define TDA9873_MOUT_ST 1 << 4
671 #define TDA9873_MOUT_EXTM (1 << 4 ) & (1 << 3)
672 #define TDA9873_MOUT_EXTL 1 << 5
673 #define TDA9873_MOUT_EXTR (1 << 5 ) & (1 << 3)
674 #define TDA9873_MOUT_EXTLR (1 << 5 ) & (1 << 4)
675 #define TDA9873_MOUT_MUTE (1 << 5 ) & (1 << 4) & (1 << 3)
677 /* Status bits: (chip read) */
678 #define TDA9873_PONR 0 /* Power-on reset detected if = 1 */
679 #define TDA9873_STEREO 2 /* Stereo sound is identified */
680 #define TDA9873_DUAL 4 /* Dual sound is identified */
682 static int tda9873_getmode(struct CHIPSTATE *chip)
684 struct v4l2_subdev *sd = &chip->sd;
687 val = chip_read(chip);
688 mode = V4L2_TUNER_MODE_MONO;
689 if (val & TDA9873_STEREO)
690 mode |= V4L2_TUNER_MODE_STEREO;
691 if (val & TDA9873_DUAL)
692 mode |= V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
693 v4l2_dbg(1, debug, sd, "tda9873_getmode(): raw chip read: %d, return: %d\n",
698 static void tda9873_setmode(struct CHIPSTATE *chip, int mode)
700 struct v4l2_subdev *sd = &chip->sd;
701 int sw_data = chip->shadow.bytes[TDA9873_SW+1] & ~ TDA9873_TR_MASK;
702 /* int adj_data = chip->shadow.bytes[TDA9873_AD+1] ; */
704 if ((sw_data & TDA9873_INP_MASK) != TDA9873_INTERNAL) {
705 v4l2_dbg(1, debug, sd, "tda9873_setmode(): external input\n");
709 v4l2_dbg(1, debug, sd, "tda9873_setmode(): chip->shadow.bytes[%d] = %d\n", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]);
710 v4l2_dbg(1, debug, sd, "tda9873_setmode(): sw_data = %d\n", sw_data);
713 case V4L2_TUNER_MODE_MONO:
714 sw_data |= TDA9873_TR_MONO;
716 case V4L2_TUNER_MODE_STEREO:
717 sw_data |= TDA9873_TR_STEREO;
719 case V4L2_TUNER_MODE_LANG1:
720 sw_data |= TDA9873_TR_DUALA;
722 case V4L2_TUNER_MODE_LANG2:
723 sw_data |= TDA9873_TR_DUALB;
730 chip_write(chip, TDA9873_SW, sw_data);
731 v4l2_dbg(1, debug, sd, "tda9873_setmode(): req. mode %d; chip_write: %d\n",
735 static int tda9873_checkit(struct CHIPSTATE *chip)
739 if (-1 == (rc = chip_read2(chip,254)))
741 return (rc & ~0x1f) == 0x80;
745 /* ---------------------------------------------------------------------- */
746 /* audio chip description - defines+functions for tda9874h and tda9874a */
747 /* Dariusz Kowalewski <darekk@automex.pl> */
749 /* Subaddresses for TDA9874H and TDA9874A (slave rx) */
750 #define TDA9874A_AGCGR 0x00 /* AGC gain */
751 #define TDA9874A_GCONR 0x01 /* general config */
752 #define TDA9874A_MSR 0x02 /* monitor select */
753 #define TDA9874A_C1FRA 0x03 /* carrier 1 freq. */
754 #define TDA9874A_C1FRB 0x04 /* carrier 1 freq. */
755 #define TDA9874A_C1FRC 0x05 /* carrier 1 freq. */
756 #define TDA9874A_C2FRA 0x06 /* carrier 2 freq. */
757 #define TDA9874A_C2FRB 0x07 /* carrier 2 freq. */
758 #define TDA9874A_C2FRC 0x08 /* carrier 2 freq. */
759 #define TDA9874A_DCR 0x09 /* demodulator config */
760 #define TDA9874A_FMER 0x0a /* FM de-emphasis */
761 #define TDA9874A_FMMR 0x0b /* FM dematrix */
762 #define TDA9874A_C1OLAR 0x0c /* ch.1 output level adj. */
763 #define TDA9874A_C2OLAR 0x0d /* ch.2 output level adj. */
764 #define TDA9874A_NCONR 0x0e /* NICAM config */
765 #define TDA9874A_NOLAR 0x0f /* NICAM output level adj. */
766 #define TDA9874A_NLELR 0x10 /* NICAM lower error limit */
767 #define TDA9874A_NUELR 0x11 /* NICAM upper error limit */
768 #define TDA9874A_AMCONR 0x12 /* audio mute control */
769 #define TDA9874A_SDACOSR 0x13 /* stereo DAC output select */
770 #define TDA9874A_AOSR 0x14 /* analog output select */
771 #define TDA9874A_DAICONR 0x15 /* digital audio interface config */
772 #define TDA9874A_I2SOSR 0x16 /* I2S-bus output select */
773 #define TDA9874A_I2SOLAR 0x17 /* I2S-bus output level adj. */
774 #define TDA9874A_MDACOSR 0x18 /* mono DAC output select (tda9874a) */
775 #define TDA9874A_ESP 0xFF /* easy standard progr. (tda9874a) */
777 /* Subaddresses for TDA9874H and TDA9874A (slave tx) */
778 #define TDA9874A_DSR 0x00 /* device status */
779 #define TDA9874A_NSR 0x01 /* NICAM status */
780 #define TDA9874A_NECR 0x02 /* NICAM error count */
781 #define TDA9874A_DR1 0x03 /* add. data LSB */
782 #define TDA9874A_DR2 0x04 /* add. data MSB */
783 #define TDA9874A_LLRA 0x05 /* monitor level read-out LSB */
784 #define TDA9874A_LLRB 0x06 /* monitor level read-out MSB */
785 #define TDA9874A_SIFLR 0x07 /* SIF level */
786 #define TDA9874A_TR2 252 /* test reg. 2 */
787 #define TDA9874A_TR1 253 /* test reg. 1 */
788 #define TDA9874A_DIC 254 /* device id. code */
789 #define TDA9874A_SIC 255 /* software id. code */
792 static int tda9874a_mode = 1; /* 0: A2, 1: NICAM */
793 static int tda9874a_GCONR = 0xc0; /* default config. input pin: SIFSEL=0 */
794 static int tda9874a_NCONR = 0x01; /* default NICAM config.: AMSEL=0,AMUTE=1 */
795 static int tda9874a_ESP = 0x07; /* default standard: NICAM D/K */
796 static int tda9874a_dic = -1; /* device id. code */
798 /* insmod options for tda9874a */
799 static unsigned int tda9874a_SIF = UNSET;
800 static unsigned int tda9874a_AMSEL = UNSET;
801 static unsigned int tda9874a_STD = UNSET;
802 module_param(tda9874a_SIF, int, 0444);
803 module_param(tda9874a_AMSEL, int, 0444);
804 module_param(tda9874a_STD, int, 0444);
807 * initialization table for tda9874 decoder:
808 * - carrier 1 freq. registers (3 bytes)
809 * - carrier 2 freq. registers (3 bytes)
810 * - demudulator config register
811 * - FM de-emphasis register (slow identification mode)
812 * Note: frequency registers must be written in single i2c transfer.
814 static struct tda9874a_MODES {
817 } tda9874a_modelist[9] = {
818 { "A2, B/G", /* default */
819 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x77,0xA0,0x00, 0x00,0x00 }} },
821 { 9, { TDA9874A_C1FRA, 0x5D,0xC0,0x00, 0x62,0x6A,0xAA, 0x20,0x22 }} },
823 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x82,0x60,0x00, 0x00,0x00 }} },
825 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x8C,0x75,0x55, 0x00,0x00 }} },
827 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x77,0xA0,0x00, 0x00,0x00 }} },
829 { 9, { TDA9874A_C1FRA, 0x7D,0x00,0x00, 0x88,0x8A,0xAA, 0x08,0x33 }} },
831 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x79,0xEA,0xAA, 0x08,0x33 }} },
833 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x08,0x33 }} },
835 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x09,0x33 }} }
838 static int tda9874a_setup(struct CHIPSTATE *chip)
840 struct v4l2_subdev *sd = &chip->sd;
842 chip_write(chip, TDA9874A_AGCGR, 0x00); /* 0 dB */
843 chip_write(chip, TDA9874A_GCONR, tda9874a_GCONR);
844 chip_write(chip, TDA9874A_MSR, (tda9874a_mode) ? 0x03:0x02);
845 if(tda9874a_dic == 0x11) {
846 chip_write(chip, TDA9874A_FMMR, 0x80);
847 } else { /* dic == 0x07 */
848 chip_cmd(chip,"tda9874_modelist",&tda9874a_modelist[tda9874a_STD].cmd);
849 chip_write(chip, TDA9874A_FMMR, 0x00);
851 chip_write(chip, TDA9874A_C1OLAR, 0x00); /* 0 dB */
852 chip_write(chip, TDA9874A_C2OLAR, 0x00); /* 0 dB */
853 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
854 chip_write(chip, TDA9874A_NOLAR, 0x00); /* 0 dB */
855 /* Note: If signal quality is poor you may want to change NICAM */
856 /* error limit registers (NLELR and NUELR) to some greater values. */
857 /* Then the sound would remain stereo, but won't be so clear. */
858 chip_write(chip, TDA9874A_NLELR, 0x14); /* default */
859 chip_write(chip, TDA9874A_NUELR, 0x50); /* default */
861 if(tda9874a_dic == 0x11) {
862 chip_write(chip, TDA9874A_AMCONR, 0xf9);
863 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
864 chip_write(chip, TDA9874A_AOSR, 0x80);
865 chip_write(chip, TDA9874A_MDACOSR, (tda9874a_mode) ? 0x82:0x80);
866 chip_write(chip, TDA9874A_ESP, tda9874a_ESP);
867 } else { /* dic == 0x07 */
868 chip_write(chip, TDA9874A_AMCONR, 0xfb);
869 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
870 chip_write(chip, TDA9874A_AOSR, 0x00); /* or 0x10 */
872 v4l2_dbg(1, debug, sd, "tda9874a_setup(): %s [0x%02X].\n",
873 tda9874a_modelist[tda9874a_STD].name,tda9874a_STD);
877 static int tda9874a_getmode(struct CHIPSTATE *chip)
879 struct v4l2_subdev *sd = &chip->sd;
881 int necr; /* just for debugging */
883 mode = V4L2_TUNER_MODE_MONO;
885 if(-1 == (dsr = chip_read2(chip,TDA9874A_DSR)))
887 if(-1 == (nsr = chip_read2(chip,TDA9874A_NSR)))
889 if(-1 == (necr = chip_read2(chip,TDA9874A_NECR)))
892 /* need to store dsr/nsr somewhere */
893 chip->shadow.bytes[MAXREGS-2] = dsr;
894 chip->shadow.bytes[MAXREGS-1] = nsr;
897 /* Note: DSR.RSSF and DSR.AMSTAT bits are also checked.
898 * If NICAM auto-muting is enabled, DSR.AMSTAT=1 indicates
899 * that sound has (temporarily) switched from NICAM to
900 * mono FM (or AM) on 1st sound carrier due to high NICAM bit
901 * error count. So in fact there is no stereo in this case :-(
902 * But changing the mode to V4L2_TUNER_MODE_MONO would switch
903 * external 4052 multiplexer in audio_hook().
905 if(nsr & 0x02) /* NSR.S/MB=1 */
906 mode |= V4L2_TUNER_MODE_STEREO;
907 if(nsr & 0x01) /* NSR.D/SB=1 */
908 mode |= V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
910 if(dsr & 0x02) /* DSR.IDSTE=1 */
911 mode |= V4L2_TUNER_MODE_STEREO;
912 if(dsr & 0x04) /* DSR.IDDUA=1 */
913 mode |= V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
916 v4l2_dbg(1, debug, sd, "tda9874a_getmode(): DSR=0x%X, NSR=0x%X, NECR=0x%X, return: %d.\n",
917 dsr, nsr, necr, mode);
921 static void tda9874a_setmode(struct CHIPSTATE *chip, int mode)
923 struct v4l2_subdev *sd = &chip->sd;
925 /* Disable/enable NICAM auto-muting (based on DSR.RSSF status bit). */
926 /* If auto-muting is disabled, we can hear a signal of degrading quality. */
928 if(chip->shadow.bytes[MAXREGS-2] & 0x20) /* DSR.RSSF=1 */
929 tda9874a_NCONR &= 0xfe; /* enable */
931 tda9874a_NCONR |= 0x01; /* disable */
932 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
935 /* Note: TDA9874A supports automatic FM dematrixing (FMMR register)
936 * and has auto-select function for audio output (AOSR register).
937 * Old TDA9874H doesn't support these features.
938 * TDA9874A also has additional mono output pin (OUTM), which
939 * on same (all?) tv-cards is not used, anyway (as well as MONOIN).
941 if(tda9874a_dic == 0x11) {
943 int mdacosr = (tda9874a_mode) ? 0x82:0x80;
946 case V4L2_TUNER_MODE_MONO:
947 case V4L2_TUNER_MODE_STEREO:
949 case V4L2_TUNER_MODE_LANG1:
950 aosr = 0x80; /* auto-select, dual A/A */
951 mdacosr = (tda9874a_mode) ? 0x82:0x80;
953 case V4L2_TUNER_MODE_LANG2:
954 aosr = 0xa0; /* auto-select, dual B/B */
955 mdacosr = (tda9874a_mode) ? 0x83:0x81;
961 chip_write(chip, TDA9874A_AOSR, aosr);
962 chip_write(chip, TDA9874A_MDACOSR, mdacosr);
964 v4l2_dbg(1, debug, sd, "tda9874a_setmode(): req. mode %d; AOSR=0x%X, MDACOSR=0x%X.\n",
965 mode, aosr, mdacosr);
967 } else { /* dic == 0x07 */
971 case V4L2_TUNER_MODE_MONO:
972 fmmr = 0x00; /* mono */
973 aosr = 0x10; /* A/A */
975 case V4L2_TUNER_MODE_STEREO:
978 aosr = 0x00; /* handled by NICAM auto-mute */
980 fmmr = (tda9874a_ESP == 1) ? 0x05 : 0x04; /* stereo */
984 case V4L2_TUNER_MODE_LANG1:
985 fmmr = 0x02; /* dual */
986 aosr = 0x10; /* dual A/A */
988 case V4L2_TUNER_MODE_LANG2:
989 fmmr = 0x02; /* dual */
990 aosr = 0x20; /* dual B/B */
996 chip_write(chip, TDA9874A_FMMR, fmmr);
997 chip_write(chip, TDA9874A_AOSR, aosr);
999 v4l2_dbg(1, debug, sd, "tda9874a_setmode(): req. mode %d; FMMR=0x%X, AOSR=0x%X.\n",
1004 static int tda9874a_checkit(struct CHIPSTATE *chip)
1006 struct v4l2_subdev *sd = &chip->sd;
1007 int dic,sic; /* device id. and software id. codes */
1009 if(-1 == (dic = chip_read2(chip,TDA9874A_DIC)))
1011 if(-1 == (sic = chip_read2(chip,TDA9874A_SIC)))
1014 v4l2_dbg(1, debug, sd, "tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", dic, sic);
1016 if((dic == 0x11)||(dic == 0x07)) {
1017 v4l2_info(sd, "found tda9874%s.\n", (dic == 0x11) ? "a" : "h");
1018 tda9874a_dic = dic; /* remember device id. */
1021 return 0; /* not found */
1024 static int tda9874a_initialize(struct CHIPSTATE *chip)
1026 if (tda9874a_SIF > 2)
1028 if (tda9874a_STD >= ARRAY_SIZE(tda9874a_modelist))
1030 if(tda9874a_AMSEL > 1)
1033 if(tda9874a_SIF == 1)
1034 tda9874a_GCONR = 0xc0; /* sound IF input 1 */
1036 tda9874a_GCONR = 0xc1; /* sound IF input 2 */
1038 tda9874a_ESP = tda9874a_STD;
1039 tda9874a_mode = (tda9874a_STD < 5) ? 0 : 1;
1041 if(tda9874a_AMSEL == 0)
1042 tda9874a_NCONR = 0x01; /* auto-mute: analog mono input */
1044 tda9874a_NCONR = 0x05; /* auto-mute: 1st carrier FM or AM */
1046 tda9874a_setup(chip);
1051 /* ---------------------------------------------------------------------- */
1052 /* audio chip descriptions - defines+functions for tea6420 */
1054 #define TEA6300_VL 0x00 /* volume left */
1055 #define TEA6300_VR 0x01 /* volume right */
1056 #define TEA6300_BA 0x02 /* bass */
1057 #define TEA6300_TR 0x03 /* treble */
1058 #define TEA6300_FA 0x04 /* fader control */
1059 #define TEA6300_S 0x05 /* switch register */
1060 /* values for those registers: */
1061 #define TEA6300_S_SA 0x01 /* stereo A input */
1062 #define TEA6300_S_SB 0x02 /* stereo B */
1063 #define TEA6300_S_SC 0x04 /* stereo C */
1064 #define TEA6300_S_GMU 0x80 /* general mute */
1066 #define TEA6320_V 0x00 /* volume (0-5)/loudness off (6)/zero crossing mute(7) */
1067 #define TEA6320_FFR 0x01 /* fader front right (0-5) */
1068 #define TEA6320_FFL 0x02 /* fader front left (0-5) */
1069 #define TEA6320_FRR 0x03 /* fader rear right (0-5) */
1070 #define TEA6320_FRL 0x04 /* fader rear left (0-5) */
1071 #define TEA6320_BA 0x05 /* bass (0-4) */
1072 #define TEA6320_TR 0x06 /* treble (0-4) */
1073 #define TEA6320_S 0x07 /* switch register */
1074 /* values for those registers: */
1075 #define TEA6320_S_SA 0x07 /* stereo A input */
1076 #define TEA6320_S_SB 0x06 /* stereo B */
1077 #define TEA6320_S_SC 0x05 /* stereo C */
1078 #define TEA6320_S_SD 0x04 /* stereo D */
1079 #define TEA6320_S_GMU 0x80 /* general mute */
1081 #define TEA6420_S_SA 0x00 /* stereo A input */
1082 #define TEA6420_S_SB 0x01 /* stereo B */
1083 #define TEA6420_S_SC 0x02 /* stereo C */
1084 #define TEA6420_S_SD 0x03 /* stereo D */
1085 #define TEA6420_S_SE 0x04 /* stereo E */
1086 #define TEA6420_S_GMU 0x05 /* general mute */
1088 static int tea6300_shift10(int val) { return val >> 10; }
1089 static int tea6300_shift12(int val) { return val >> 12; }
1091 /* Assumes 16bit input (values 0x3f to 0x0c are unique, values less than */
1092 /* 0x0c mirror those immediately higher) */
1093 static int tea6320_volume(int val) { return (val / (65535/(63-12)) + 12) & 0x3f; }
1094 static int tea6320_shift11(int val) { return val >> 11; }
1095 static int tea6320_initialize(struct CHIPSTATE * chip)
1097 chip_write(chip, TEA6320_FFR, 0x3f);
1098 chip_write(chip, TEA6320_FFL, 0x3f);
1099 chip_write(chip, TEA6320_FRR, 0x3f);
1100 chip_write(chip, TEA6320_FRL, 0x3f);
1106 /* ---------------------------------------------------------------------- */
1107 /* audio chip descriptions - defines+functions for tda8425 */
1109 #define TDA8425_VL 0x00 /* volume left */
1110 #define TDA8425_VR 0x01 /* volume right */
1111 #define TDA8425_BA 0x02 /* bass */
1112 #define TDA8425_TR 0x03 /* treble */
1113 #define TDA8425_S1 0x08 /* switch functions */
1114 /* values for those registers: */
1115 #define TDA8425_S1_OFF 0xEE /* audio off (mute on) */
1116 #define TDA8425_S1_CH1 0xCE /* audio channel 1 (mute off) - "linear stereo" mode */
1117 #define TDA8425_S1_CH2 0xCF /* audio channel 2 (mute off) - "linear stereo" mode */
1118 #define TDA8425_S1_MU 0x20 /* mute bit */
1119 #define TDA8425_S1_STEREO 0x18 /* stereo bits */
1120 #define TDA8425_S1_STEREO_SPATIAL 0x18 /* spatial stereo */
1121 #define TDA8425_S1_STEREO_LINEAR 0x08 /* linear stereo */
1122 #define TDA8425_S1_STEREO_PSEUDO 0x10 /* pseudo stereo */
1123 #define TDA8425_S1_STEREO_MONO 0x00 /* forced mono */
1124 #define TDA8425_S1_ML 0x06 /* language selector */
1125 #define TDA8425_S1_ML_SOUND_A 0x02 /* sound a */
1126 #define TDA8425_S1_ML_SOUND_B 0x04 /* sound b */
1127 #define TDA8425_S1_ML_STEREO 0x06 /* stereo */
1128 #define TDA8425_S1_IS 0x01 /* channel selector */
1131 static int tda8425_shift10(int val) { return (val >> 10) | 0xc0; }
1132 static int tda8425_shift12(int val) { return (val >> 12) | 0xf0; }
1134 static int tda8425_initialize(struct CHIPSTATE *chip)
1136 struct CHIPDESC *desc = chip->desc;
1137 struct i2c_client *c = v4l2_get_subdevdata(&chip->sd);
1138 int inputmap[4] = { /* tuner */ TDA8425_S1_CH2, /* radio */ TDA8425_S1_CH1,
1139 /* extern */ TDA8425_S1_CH1, /* intern */ TDA8425_S1_OFF};
1141 if (c->adapter->id == I2C_HW_B_RIVA)
1142 memcpy(desc->inputmap, inputmap, sizeof(inputmap));
1146 static void tda8425_setmode(struct CHIPSTATE *chip, int mode)
1148 int s1 = chip->shadow.bytes[TDA8425_S1+1] & 0xe1;
1150 if (mode & V4L2_TUNER_MODE_LANG1) {
1151 s1 |= TDA8425_S1_ML_SOUND_A;
1152 s1 |= TDA8425_S1_STEREO_PSEUDO;
1154 } else if (mode & V4L2_TUNER_MODE_LANG2) {
1155 s1 |= TDA8425_S1_ML_SOUND_B;
1156 s1 |= TDA8425_S1_STEREO_PSEUDO;
1159 s1 |= TDA8425_S1_ML_STEREO;
1161 if (mode & V4L2_TUNER_MODE_MONO)
1162 s1 |= TDA8425_S1_STEREO_MONO;
1163 if (mode & V4L2_TUNER_MODE_STEREO)
1164 s1 |= TDA8425_S1_STEREO_SPATIAL;
1166 chip_write(chip,TDA8425_S1,s1);
1170 /* ---------------------------------------------------------------------- */
1171 /* audio chip descriptions - defines+functions for pic16c54 (PV951) */
1173 /* the registers of 16C54, I2C sub address. */
1174 #define PIC16C54_REG_KEY_CODE 0x01 /* Not use. */
1175 #define PIC16C54_REG_MISC 0x02
1177 /* bit definition of the RESET register, I2C data. */
1178 #define PIC16C54_MISC_RESET_REMOTE_CTL 0x01 /* bit 0, Reset to receive the key */
1179 /* code of remote controller */
1180 #define PIC16C54_MISC_MTS_MAIN 0x02 /* bit 1 */
1181 #define PIC16C54_MISC_MTS_SAP 0x04 /* bit 2 */
1182 #define PIC16C54_MISC_MTS_BOTH 0x08 /* bit 3 */
1183 #define PIC16C54_MISC_SND_MUTE 0x10 /* bit 4, Mute Audio(Line-in and Tuner) */
1184 #define PIC16C54_MISC_SND_NOTMUTE 0x20 /* bit 5 */
1185 #define PIC16C54_MISC_SWITCH_TUNER 0x40 /* bit 6 , Switch to Line-in */
1186 #define PIC16C54_MISC_SWITCH_LINE 0x80 /* bit 7 , Switch to Tuner */
1188 /* ---------------------------------------------------------------------- */
1189 /* audio chip descriptions - defines+functions for TA8874Z */
1191 /* write 1st byte */
1192 #define TA8874Z_LED_STE 0x80
1193 #define TA8874Z_LED_BIL 0x40
1194 #define TA8874Z_LED_EXT 0x20
1195 #define TA8874Z_MONO_SET 0x10
1196 #define TA8874Z_MUTE 0x08
1197 #define TA8874Z_F_MONO 0x04
1198 #define TA8874Z_MODE_SUB 0x02
1199 #define TA8874Z_MODE_MAIN 0x01
1201 /* write 2nd byte */
1202 /*#define TA8874Z_TI 0x80 */ /* test mode */
1203 #define TA8874Z_SEPARATION 0x3f
1204 #define TA8874Z_SEPARATION_DEFAULT 0x10
1207 #define TA8874Z_B1 0x80
1208 #define TA8874Z_B0 0x40
1209 #define TA8874Z_CHAG_FLAG 0x20
1217 static int ta8874z_getmode(struct CHIPSTATE *chip)
1221 val = chip_read(chip);
1222 mode = V4L2_TUNER_MODE_MONO;
1223 if (val & TA8874Z_B1){
1224 mode |= V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
1225 }else if (!(val & TA8874Z_B0)){
1226 mode |= V4L2_TUNER_MODE_STEREO;
1228 /* v4l_dbg(1, debug, chip->c, "ta8874z_getmode(): raw chip read: 0x%02x, return: 0x%02x\n", val, mode); */
1232 static audiocmd ta8874z_stereo = { 2, {0, TA8874Z_SEPARATION_DEFAULT}};
1233 static audiocmd ta8874z_mono = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}};
1234 static audiocmd ta8874z_main = {2, { 0, TA8874Z_SEPARATION_DEFAULT}};
1235 static audiocmd ta8874z_sub = {2, { TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}};
1237 static void ta8874z_setmode(struct CHIPSTATE *chip, int mode)
1239 struct v4l2_subdev *sd = &chip->sd;
1243 v4l2_dbg(1, debug, sd, "ta8874z_setmode(): mode: 0x%02x\n", mode);
1246 case V4L2_TUNER_MODE_MONO:
1249 case V4L2_TUNER_MODE_STEREO:
1250 t = &ta8874z_stereo;
1252 case V4L2_TUNER_MODE_LANG1:
1255 case V4L2_TUNER_MODE_LANG2:
1263 chip_cmd(chip, "TA8874Z", t);
1266 static int ta8874z_checkit(struct CHIPSTATE *chip)
1269 rc = chip_read(chip);
1270 return ((rc & 0x1f) == 0x1f) ? 1 : 0;
1273 /* ---------------------------------------------------------------------- */
1274 /* audio chip descriptions - struct CHIPDESC */
1276 /* insmod options to enable/disable individual audio chips */
1277 static int tda8425 = 1;
1278 static int tda9840 = 1;
1279 static int tda9850 = 1;
1280 static int tda9855 = 1;
1281 static int tda9873 = 1;
1282 static int tda9874a = 1;
1283 static int tea6300; /* default 0 - address clash with msp34xx */
1284 static int tea6320; /* default 0 - address clash with msp34xx */
1285 static int tea6420 = 1;
1286 static int pic16c54 = 1;
1287 static int ta8874z; /* default 0 - address clash with tda9840 */
1289 module_param(tda8425, int, 0444);
1290 module_param(tda9840, int, 0444);
1291 module_param(tda9850, int, 0444);
1292 module_param(tda9855, int, 0444);
1293 module_param(tda9873, int, 0444);
1294 module_param(tda9874a, int, 0444);
1295 module_param(tea6300, int, 0444);
1296 module_param(tea6320, int, 0444);
1297 module_param(tea6420, int, 0444);
1298 module_param(pic16c54, int, 0444);
1299 module_param(ta8874z, int, 0444);
1301 static struct CHIPDESC chiplist[] = {
1304 .insmodopt = &tda9840,
1305 .addr_lo = I2C_ADDR_TDA9840 >> 1,
1306 .addr_hi = I2C_ADDR_TDA9840 >> 1,
1308 .flags = CHIP_NEED_CHECKMODE,
1311 .checkit = tda9840_checkit,
1312 .getmode = tda9840_getmode,
1313 .setmode = tda9840_setmode,
1315 .init = { 2, { TDA9840_TEST, TDA9840_TEST_INT1SN
1316 /* ,TDA9840_SW, TDA9840_MONO */} }
1320 .insmodopt = &tda9873,
1321 .addr_lo = I2C_ADDR_TDA985x_L >> 1,
1322 .addr_hi = I2C_ADDR_TDA985x_H >> 1,
1324 .flags = CHIP_HAS_INPUTSEL | CHIP_NEED_CHECKMODE,
1327 .checkit = tda9873_checkit,
1328 .getmode = tda9873_getmode,
1329 .setmode = tda9873_setmode,
1331 .init = { 4, { TDA9873_SW, 0xa4, 0x06, 0x03 } },
1332 .inputreg = TDA9873_SW,
1333 .inputmute = TDA9873_MUTE | TDA9873_AUTOMUTE,
1334 .inputmap = {0xa0, 0xa2, 0xa0, 0xa0},
1335 .inputmask = TDA9873_INP_MASK|TDA9873_MUTE|TDA9873_AUTOMUTE,
1339 .name = "tda9874h/a",
1340 .insmodopt = &tda9874a,
1341 .addr_lo = I2C_ADDR_TDA9874 >> 1,
1342 .addr_hi = I2C_ADDR_TDA9874 >> 1,
1343 .flags = CHIP_NEED_CHECKMODE,
1346 .initialize = tda9874a_initialize,
1347 .checkit = tda9874a_checkit,
1348 .getmode = tda9874a_getmode,
1349 .setmode = tda9874a_setmode,
1353 .insmodopt = &tda9850,
1354 .addr_lo = I2C_ADDR_TDA985x_L >> 1,
1355 .addr_hi = I2C_ADDR_TDA985x_H >> 1,
1358 .getmode = tda985x_getmode,
1359 .setmode = tda985x_setmode,
1361 .init = { 8, { TDA9850_C4, 0x08, 0x08, TDA985x_STEREO, 0x07, 0x10, 0x10, 0x03 } }
1365 .insmodopt = &tda9855,
1366 .addr_lo = I2C_ADDR_TDA985x_L >> 1,
1367 .addr_hi = I2C_ADDR_TDA985x_H >> 1,
1369 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE,
1371 .leftreg = TDA9855_VL,
1372 .rightreg = TDA9855_VR,
1373 .bassreg = TDA9855_BA,
1374 .treblereg = TDA9855_TR,
1377 .volfunc = tda9855_volume,
1378 .bassfunc = tda9855_bass,
1379 .treblefunc = tda9855_treble,
1380 .getmode = tda985x_getmode,
1381 .setmode = tda985x_setmode,
1383 .init = { 12, { 0, 0x6f, 0x6f, 0x0e, 0x07<<1, 0x8<<2,
1384 TDA9855_MUTE | TDA9855_AVL | TDA9855_LOUD | TDA9855_INT,
1385 TDA985x_STEREO | TDA9855_LINEAR | TDA9855_TZCM | TDA9855_VZCM,
1386 0x07, 0x10, 0x10, 0x03 }}
1390 .insmodopt = &tea6300,
1391 .addr_lo = I2C_ADDR_TEA6300 >> 1,
1392 .addr_hi = I2C_ADDR_TEA6300 >> 1,
1394 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1396 .leftreg = TEA6300_VR,
1397 .rightreg = TEA6300_VL,
1398 .bassreg = TEA6300_BA,
1399 .treblereg = TEA6300_TR,
1402 .volfunc = tea6300_shift10,
1403 .bassfunc = tea6300_shift12,
1404 .treblefunc = tea6300_shift12,
1406 .inputreg = TEA6300_S,
1407 .inputmap = { TEA6300_S_SA, TEA6300_S_SB, TEA6300_S_SC },
1408 .inputmute = TEA6300_S_GMU,
1412 .insmodopt = &tea6320,
1413 .addr_lo = I2C_ADDR_TEA6300 >> 1,
1414 .addr_hi = I2C_ADDR_TEA6300 >> 1,
1416 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1418 .leftreg = TEA6320_V,
1419 .rightreg = TEA6320_V,
1420 .bassreg = TEA6320_BA,
1421 .treblereg = TEA6320_TR,
1424 .initialize = tea6320_initialize,
1425 .volfunc = tea6320_volume,
1426 .bassfunc = tea6320_shift11,
1427 .treblefunc = tea6320_shift11,
1429 .inputreg = TEA6320_S,
1430 .inputmap = { TEA6320_S_SA, TEA6420_S_SB, TEA6300_S_SC, TEA6320_S_SD },
1431 .inputmute = TEA6300_S_GMU,
1435 .insmodopt = &tea6420,
1436 .addr_lo = I2C_ADDR_TEA6420 >> 1,
1437 .addr_hi = I2C_ADDR_TEA6420 >> 1,
1439 .flags = CHIP_HAS_INPUTSEL,
1442 .inputmap = { TEA6420_S_SA, TEA6420_S_SB, TEA6420_S_SC },
1443 .inputmute = TEA6300_S_GMU,
1447 .insmodopt = &tda8425,
1448 .addr_lo = I2C_ADDR_TDA8425 >> 1,
1449 .addr_hi = I2C_ADDR_TDA8425 >> 1,
1451 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1453 .leftreg = TDA8425_VL,
1454 .rightreg = TDA8425_VR,
1455 .bassreg = TDA8425_BA,
1456 .treblereg = TDA8425_TR,
1459 .initialize = tda8425_initialize,
1460 .volfunc = tda8425_shift10,
1461 .bassfunc = tda8425_shift12,
1462 .treblefunc = tda8425_shift12,
1463 .setmode = tda8425_setmode,
1465 .inputreg = TDA8425_S1,
1466 .inputmap = { TDA8425_S1_CH1, TDA8425_S1_CH1, TDA8425_S1_CH1 },
1467 .inputmute = TDA8425_S1_OFF,
1471 .name = "pic16c54 (PV951)",
1472 .insmodopt = &pic16c54,
1473 .addr_lo = I2C_ADDR_PIC16C54 >> 1,
1474 .addr_hi = I2C_ADDR_PIC16C54>> 1,
1476 .flags = CHIP_HAS_INPUTSEL,
1478 .inputreg = PIC16C54_REG_MISC,
1479 .inputmap = {PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_TUNER,
1480 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1481 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1482 PIC16C54_MISC_SND_MUTE},
1483 .inputmute = PIC16C54_MISC_SND_MUTE,
1487 .checkit = ta8874z_checkit,
1488 .insmodopt = &ta8874z,
1489 .addr_lo = I2C_ADDR_TDA9840 >> 1,
1490 .addr_hi = I2C_ADDR_TDA9840 >> 1,
1492 .flags = CHIP_NEED_CHECKMODE,
1495 .getmode = ta8874z_getmode,
1496 .setmode = ta8874z_setmode,
1498 .init = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}},
1500 { .name = NULL } /* EOF */
1504 /* ---------------------------------------------------------------------- */
1506 static int tvaudio_g_ctrl(struct v4l2_subdev *sd,
1507 struct v4l2_control *ctrl)
1509 struct CHIPSTATE *chip = to_state(sd);
1510 struct CHIPDESC *desc = chip->desc;
1513 case V4L2_CID_AUDIO_MUTE:
1514 ctrl->value=chip->muted;
1516 case V4L2_CID_AUDIO_VOLUME:
1517 if (!(desc->flags & CHIP_HAS_VOLUME))
1519 ctrl->value = max(chip->left,chip->right);
1521 case V4L2_CID_AUDIO_BALANCE:
1524 if (!(desc->flags & CHIP_HAS_VOLUME))
1526 volume = max(chip->left,chip->right);
1528 ctrl->value=(32768*min(chip->left,chip->right))/volume;
1533 case V4L2_CID_AUDIO_BASS:
1534 if (!(desc->flags & CHIP_HAS_BASSTREBLE))
1536 ctrl->value = chip->bass;
1538 case V4L2_CID_AUDIO_TREBLE:
1539 if (!(desc->flags & CHIP_HAS_BASSTREBLE))
1541 ctrl->value = chip->treble;
1547 static int tvaudio_s_ctrl(struct v4l2_subdev *sd,
1548 struct v4l2_control *ctrl)
1550 struct CHIPSTATE *chip = to_state(sd);
1551 struct CHIPDESC *desc = chip->desc;
1554 case V4L2_CID_AUDIO_MUTE:
1555 if (ctrl->value < 0 || ctrl->value >= 2)
1557 chip->muted = ctrl->value;
1559 chip_write_masked(chip,desc->inputreg,desc->inputmute,desc->inputmask);
1561 chip_write_masked(chip,desc->inputreg,
1562 desc->inputmap[chip->input],desc->inputmask);
1564 case V4L2_CID_AUDIO_VOLUME:
1568 if (!(desc->flags & CHIP_HAS_VOLUME))
1571 volume = max(chip->left,chip->right);
1573 balance=(32768*min(chip->left,chip->right))/volume;
1578 chip->left = (min(65536 - balance,32768) * volume) / 32768;
1579 chip->right = (min(balance,volume *(__u16)32768)) / 32768;
1581 chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
1582 chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
1586 case V4L2_CID_AUDIO_BALANCE:
1588 int volume, balance;
1589 if (!(desc->flags & CHIP_HAS_VOLUME))
1592 volume = max(chip->left,chip->right);
1593 balance = ctrl->value;
1595 chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
1596 chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
1600 case V4L2_CID_AUDIO_BASS:
1601 if (!(desc->flags & CHIP_HAS_BASSTREBLE))
1603 chip->bass = ctrl->value;
1604 chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
1607 case V4L2_CID_AUDIO_TREBLE:
1608 if (!(desc->flags & CHIP_HAS_BASSTREBLE))
1610 chip->treble = ctrl->value;
1611 chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
1619 /* ---------------------------------------------------------------------- */
1620 /* video4linux interface */
1622 static int tvaudio_s_radio(struct v4l2_subdev *sd)
1624 struct CHIPSTATE *chip = to_state(sd);
1627 chip->watch_stereo = 0;
1628 /* del_timer(&chip->wt); */
1632 static int tvaudio_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
1634 struct CHIPSTATE *chip = to_state(sd);
1635 struct CHIPDESC *desc = chip->desc;
1638 case V4L2_CID_AUDIO_MUTE:
1639 return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
1640 case V4L2_CID_AUDIO_VOLUME:
1641 if (desc->flags & CHIP_HAS_VOLUME)
1642 return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880);
1644 case V4L2_CID_AUDIO_BALANCE:
1645 if (desc->flags & CHIP_HAS_VOLUME)
1646 return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
1648 case V4L2_CID_AUDIO_BASS:
1649 case V4L2_CID_AUDIO_TREBLE:
1650 if (desc->flags & CHIP_HAS_BASSTREBLE)
1651 return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
1659 static int tvaudio_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *rt)
1661 struct CHIPSTATE *chip = to_state(sd);
1662 struct CHIPDESC *desc = chip->desc;
1664 if (!(desc->flags & CHIP_HAS_INPUTSEL) || rt->input >= 4)
1666 /* There are four inputs: tuner, radio, extern and intern. */
1667 chip->input = rt->input;
1670 chip_write_masked(chip, desc->inputreg,
1671 desc->inputmap[chip->input], desc->inputmask);
1675 static int tvaudio_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
1677 struct CHIPSTATE *chip = to_state(sd);
1678 struct CHIPDESC *desc = chip->desc;
1683 switch (vt->audmode) {
1684 case V4L2_TUNER_MODE_MONO:
1685 case V4L2_TUNER_MODE_STEREO:
1686 case V4L2_TUNER_MODE_LANG1:
1687 case V4L2_TUNER_MODE_LANG2:
1690 case V4L2_TUNER_MODE_LANG1_LANG2:
1691 mode = V4L2_TUNER_MODE_STEREO;
1696 chip->audmode = vt->audmode;
1698 if (desc->setmode && mode) {
1699 chip->watch_stereo = 0;
1700 /* del_timer(&chip->wt); */
1702 desc->setmode(chip, mode);
1707 static int tvaudio_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
1709 struct CHIPSTATE *chip = to_state(sd);
1710 struct CHIPDESC *desc = chip->desc;
1711 int mode = V4L2_TUNER_MODE_MONO;
1715 vt->audmode = chip->audmode;
1717 vt->capability = V4L2_TUNER_CAP_STEREO |
1718 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1721 mode = desc->getmode(chip);
1723 if (mode & V4L2_TUNER_MODE_MONO)
1724 vt->rxsubchans |= V4L2_TUNER_SUB_MONO;
1725 if (mode & V4L2_TUNER_MODE_STEREO)
1726 vt->rxsubchans |= V4L2_TUNER_SUB_STEREO;
1727 /* Note: for SAP it should be mono/lang2 or stereo/lang2.
1728 When this module is converted fully to v4l2, then this
1729 should change for those chips that can detect SAP. */
1730 if (mode & V4L2_TUNER_MODE_LANG1)
1731 vt->rxsubchans = V4L2_TUNER_SUB_LANG1 |
1732 V4L2_TUNER_SUB_LANG2;
1736 static int tvaudio_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
1738 struct CHIPSTATE *chip = to_state(sd);
1744 static int tvaudio_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *freq)
1746 struct CHIPSTATE *chip = to_state(sd);
1747 struct CHIPDESC *desc = chip->desc;
1749 chip->mode = 0; /* automatic */
1751 /* For chips that provide getmode and setmode, and doesn't
1752 automatically follows the stereo carrier, a kthread is
1753 created to set the audio standard. In this case, when then
1754 the video channel is changed, tvaudio starts on MONO mode.
1755 After waiting for 2 seconds, the kernel thread is called,
1756 to follow whatever audio standard is pointed by the
1760 desc->setmode(chip, V4L2_TUNER_MODE_MONO);
1761 if (chip->prevmode != V4L2_TUNER_MODE_MONO)
1762 chip->prevmode = -1; /* reset previous mode */
1763 mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000));
1768 static int tvaudio_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
1770 struct i2c_client *client = v4l2_get_subdevdata(sd);
1772 return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TVAUDIO, 0);
1775 static int tvaudio_command(struct i2c_client *client, unsigned cmd, void *arg)
1777 return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
1780 /* ----------------------------------------------------------------------- */
1782 static const struct v4l2_subdev_core_ops tvaudio_core_ops = {
1783 .g_chip_ident = tvaudio_g_chip_ident,
1784 .queryctrl = tvaudio_queryctrl,
1785 .g_ctrl = tvaudio_g_ctrl,
1786 .s_ctrl = tvaudio_s_ctrl,
1789 static const struct v4l2_subdev_tuner_ops tvaudio_tuner_ops = {
1790 .s_radio = tvaudio_s_radio,
1791 .s_frequency = tvaudio_s_frequency,
1792 .s_std = tvaudio_s_std,
1793 .s_tuner = tvaudio_s_tuner,
1794 .s_tuner = tvaudio_g_tuner,
1797 static const struct v4l2_subdev_audio_ops tvaudio_audio_ops = {
1798 .s_routing = tvaudio_s_routing,
1801 static const struct v4l2_subdev_ops tvaudio_ops = {
1802 .core = &tvaudio_core_ops,
1803 .tuner = &tvaudio_tuner_ops,
1804 .audio = &tvaudio_audio_ops,
1807 /* ----------------------------------------------------------------------- */
1810 /* i2c registration */
1812 static int tvaudio_probe(struct i2c_client *client, const struct i2c_device_id *id)
1814 struct CHIPSTATE *chip;
1815 struct CHIPDESC *desc;
1816 struct v4l2_subdev *sd;
1819 printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux driver\n");
1820 printk(KERN_INFO "tvaudio: known chips: ");
1821 for (desc = chiplist; desc->name != NULL; desc++)
1822 printk("%s%s", (desc == chiplist) ? "" : ", ", desc->name);
1826 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1830 v4l2_i2c_subdev_init(sd, client, &tvaudio_ops);
1832 /* find description for the chip */
1833 v4l2_dbg(1, debug, sd, "chip found @ 0x%x\n", client->addr<<1);
1834 for (desc = chiplist; desc->name != NULL; desc++) {
1835 if (0 == *(desc->insmodopt))
1837 if (client->addr < desc->addr_lo ||
1838 client->addr > desc->addr_hi)
1840 if (desc->checkit && !desc->checkit(chip))
1844 if (desc->name == NULL) {
1845 v4l2_dbg(1, debug, sd, "no matching chip description found\n");
1849 v4l2_info(sd, "%s found @ 0x%x (%s)\n", desc->name, client->addr<<1, client->adapter->name);
1851 v4l2_dbg(1, debug, sd, "matches:%s%s%s.\n",
1852 (desc->flags & CHIP_HAS_VOLUME) ? " volume" : "",
1853 (desc->flags & CHIP_HAS_BASSTREBLE) ? " bass/treble" : "",
1854 (desc->flags & CHIP_HAS_INPUTSEL) ? " audiomux" : "");
1857 /* fill required data structures */
1859 strlcpy(client->name, desc->name, I2C_NAME_SIZE);
1861 chip->shadow.count = desc->registers+1;
1862 chip->prevmode = -1;
1863 chip->audmode = V4L2_TUNER_MODE_LANG1;
1865 /* initialization */
1866 if (desc->initialize != NULL)
1867 desc->initialize(chip);
1869 chip_cmd(chip, "init", &desc->init);
1871 if (desc->flags & CHIP_HAS_VOLUME) {
1872 if (!desc->volfunc) {
1873 /* This shouldn't be happen. Warn user, but keep working
1874 without volume controls
1876 v4l2_info(sd, "volume callback undefined!\n");
1877 desc->flags &= ~CHIP_HAS_VOLUME;
1879 chip->left = desc->leftinit ? desc->leftinit : 65535;
1880 chip->right = desc->rightinit ? desc->rightinit : 65535;
1881 chip_write(chip, desc->leftreg,
1882 desc->volfunc(chip->left));
1883 chip_write(chip, desc->rightreg,
1884 desc->volfunc(chip->right));
1887 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1888 if (!desc->bassfunc || !desc->treblefunc) {
1889 /* This shouldn't be happen. Warn user, but keep working
1890 without bass/treble controls
1892 v4l2_info(sd, "bass/treble callbacks undefined!\n");
1893 desc->flags &= ~CHIP_HAS_BASSTREBLE;
1895 chip->treble = desc->trebleinit ?
1896 desc->trebleinit : 32768;
1897 chip->bass = desc->bassinit ?
1898 desc->bassinit : 32768;
1899 chip_write(chip, desc->bassreg,
1900 desc->bassfunc(chip->bass));
1901 chip_write(chip, desc->treblereg,
1902 desc->treblefunc(chip->treble));
1906 chip->thread = NULL;
1907 if (desc->flags & CHIP_NEED_CHECKMODE) {
1908 if (!desc->getmode || !desc->setmode) {
1909 /* This shouldn't be happen. Warn user, but keep working
1912 v4l2_info(sd, "set/get mode callbacks undefined!\n");
1915 /* start async thread */
1916 init_timer(&chip->wt);
1917 chip->wt.function = chip_thread_wake;
1918 chip->wt.data = (unsigned long)chip;
1919 chip->thread = kthread_run(chip_thread, chip, client->name);
1920 if (IS_ERR(chip->thread)) {
1921 v4l2_warn(sd, "failed to create kthread\n");
1922 chip->thread = NULL;
1928 static int tvaudio_remove(struct i2c_client *client)
1930 struct v4l2_subdev *sd = i2c_get_clientdata(client);
1931 struct CHIPSTATE *chip = to_state(sd);
1933 del_timer_sync(&chip->wt);
1935 /* shutdown async thread */
1936 kthread_stop(chip->thread);
1937 chip->thread = NULL;
1940 v4l2_device_unregister_subdev(sd);
1945 static int tvaudio_legacy_probe(struct i2c_adapter *adap)
1947 /* don't attach on saa7146 based cards,
1948 because dedicated drivers are used */
1949 if ((adap->id == I2C_HW_SAA7146))
1951 if (adap->class & I2C_CLASS_TV_ANALOG)
1956 /* This driver supports many devices and the idea is to let the driver
1957 detect which device is present. So rather than listing all supported
1958 devices here, we pretend to support a single, fake device type. */
1959 static const struct i2c_device_id tvaudio_id[] = {
1963 MODULE_DEVICE_TABLE(i2c, tvaudio_id);
1965 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
1967 .driverid = I2C_DRIVERID_TVAUDIO,
1968 .command = tvaudio_command,
1969 .probe = tvaudio_probe,
1970 .remove = tvaudio_remove,
1971 .legacy_probe = tvaudio_legacy_probe,
1972 .id_table = tvaudio_id,