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/videodev2.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>
39 #include <media/i2c-addr.h>
41 /* ---------------------------------------------------------------------- */
44 static int debug; /* insmod parameter */
45 module_param(debug, int, 0644);
47 MODULE_DESCRIPTION("device driver for various i2c TV sound decoder / audiomux chips");
48 MODULE_AUTHOR("Eric Sandeen, Steve VanDeBogart, Greg Alexander, Gerd Knorr");
49 MODULE_LICENSE("GPL");
53 /* ---------------------------------------------------------------------- */
59 typedef int (*getvalue)(int);
60 typedef int (*checkit)(struct CHIPSTATE*);
61 typedef int (*initialize)(struct CHIPSTATE*);
62 typedef int (*getmode)(struct CHIPSTATE*);
63 typedef void (*setmode)(struct CHIPSTATE*, int mode);
66 typedef struct AUDIOCMD {
67 int count; /* # of bytes to send */
68 unsigned char bytes[MAXREGS+1]; /* addr, data, data, ... */
71 /* chip description */
73 char *name; /* chip name */
74 int addr_lo, addr_hi; /* i2c address range */
75 int registers; /* # of registers */
79 initialize initialize;
81 #define CHIP_HAS_VOLUME 1
82 #define CHIP_HAS_BASSTREBLE 2
83 #define CHIP_HAS_INPUTSEL 4
84 #define CHIP_NEED_CHECKMODE 8
86 /* various i2c command sequences */
89 /* which register has which value */
90 int leftreg,rightreg,treblereg,bassreg;
92 /* initialize with (defaults to 65535/65535/32768/32768 */
93 int leftinit,rightinit,trebleinit,bassinit;
95 /* functions to convert the values (v4l -> chip) */
96 getvalue volfunc,treblefunc,bassfunc;
102 /* input switch register + values for v4l inputs */
109 /* current state of the chip */
111 struct v4l2_subdev sd;
113 /* chip-specific description - should point to
114 an entry at CHIPDESC table */
115 struct CHIPDESC *desc;
117 /* shadow register set */
120 /* current settings */
121 __u16 left, right, treble, bass, muted;
127 struct task_struct *thread;
128 struct timer_list wt;
132 static inline struct CHIPSTATE *to_state(struct v4l2_subdev *sd)
134 return container_of(sd, struct CHIPSTATE, sd);
138 /* ---------------------------------------------------------------------- */
139 /* i2c I/O functions */
141 static int chip_write(struct CHIPSTATE *chip, int subaddr, int val)
143 struct v4l2_subdev *sd = &chip->sd;
144 struct i2c_client *c = v4l2_get_subdevdata(sd);
145 unsigned char buffer[2];
148 v4l2_dbg(1, debug, sd, "chip_write: 0x%x\n", val);
149 chip->shadow.bytes[1] = val;
151 if (1 != i2c_master_send(c, buffer, 1)) {
152 v4l2_warn(sd, "I/O error (write 0x%x)\n", val);
156 if (subaddr + 1 >= ARRAY_SIZE(chip->shadow.bytes)) {
158 "Tried to access a non-existent register: %d\n",
163 v4l2_dbg(1, debug, sd, "chip_write: reg%d=0x%x\n",
165 chip->shadow.bytes[subaddr+1] = val;
168 if (2 != i2c_master_send(c, buffer, 2)) {
169 v4l2_warn(sd, "I/O error (write reg%d=0x%x)\n",
177 static int chip_write_masked(struct CHIPSTATE *chip,
178 int subaddr, int val, int mask)
180 struct v4l2_subdev *sd = &chip->sd;
184 val = (chip->shadow.bytes[1] & ~mask) | (val & mask);
186 if (subaddr + 1 >= ARRAY_SIZE(chip->shadow.bytes)) {
188 "Tried to access a non-existent register: %d\n",
193 val = (chip->shadow.bytes[subaddr+1] & ~mask) | (val & mask);
196 return chip_write(chip, subaddr, val);
199 static int chip_read(struct CHIPSTATE *chip)
201 struct v4l2_subdev *sd = &chip->sd;
202 struct i2c_client *c = v4l2_get_subdevdata(sd);
203 unsigned char buffer;
205 if (1 != i2c_master_recv(c, &buffer, 1)) {
206 v4l2_warn(sd, "I/O error (read)\n");
209 v4l2_dbg(1, debug, sd, "chip_read: 0x%x\n", buffer);
213 static int chip_read2(struct CHIPSTATE *chip, int subaddr)
215 struct v4l2_subdev *sd = &chip->sd;
216 struct i2c_client *c = v4l2_get_subdevdata(sd);
217 unsigned char write[1];
218 unsigned char read[1];
219 struct i2c_msg msgs[2] = {
220 { c->addr, 0, 1, write },
221 { c->addr, I2C_M_RD, 1, read }
226 if (2 != i2c_transfer(c->adapter, msgs, 2)) {
227 v4l2_warn(sd, "I/O error (read2)\n");
230 v4l2_dbg(1, debug, sd, "chip_read2: reg%d=0x%x\n",
235 static int chip_cmd(struct CHIPSTATE *chip, char *name, audiocmd *cmd)
237 struct v4l2_subdev *sd = &chip->sd;
238 struct i2c_client *c = v4l2_get_subdevdata(sd);
244 if (cmd->count + cmd->bytes[0] - 1 >= ARRAY_SIZE(chip->shadow.bytes)) {
246 "Tried to access a non-existent register range: %d to %d\n",
247 cmd->bytes[0] + 1, cmd->bytes[0] + cmd->count - 1);
251 /* FIXME: it seems that the shadow bytes are wrong bellow !*/
253 /* update our shadow register set; print bytes if (debug > 0) */
254 v4l2_dbg(1, debug, sd, "chip_cmd(%s): reg=%d, data:",
255 name, cmd->bytes[0]);
256 for (i = 1; i < cmd->count; i++) {
258 printk(KERN_CONT " 0x%x", cmd->bytes[i]);
259 chip->shadow.bytes[i+cmd->bytes[0]] = cmd->bytes[i];
262 printk(KERN_CONT "\n");
264 /* send data to the chip */
265 if (cmd->count != i2c_master_send(c, cmd->bytes, cmd->count)) {
266 v4l2_warn(sd, "I/O error (%s)\n", name);
272 /* ---------------------------------------------------------------------- */
273 /* kernel thread for doing i2c stuff asyncronly
274 * right now it is used only to check the audio mode (mono/stereo/whatever)
275 * some time after switching to another TV channel, then turn on stereo
279 static void chip_thread_wake(unsigned long data)
281 struct CHIPSTATE *chip = (struct CHIPSTATE*)data;
282 wake_up_process(chip->thread);
285 static int chip_thread(void *data)
287 struct CHIPSTATE *chip = data;
288 struct CHIPDESC *desc = chip->desc;
289 struct v4l2_subdev *sd = &chip->sd;
292 v4l2_dbg(1, debug, sd, "thread started\n");
295 set_current_state(TASK_INTERRUPTIBLE);
296 if (!kthread_should_stop())
298 set_current_state(TASK_RUNNING);
300 if (kthread_should_stop())
302 v4l2_dbg(1, debug, sd, "thread wakeup\n");
304 /* don't do anything for radio */
308 /* have a look what's going on */
309 mode = desc->getmode(chip);
310 if (mode == chip->prevmode)
313 /* chip detected a new audio mode - set it */
314 v4l2_dbg(1, debug, sd, "thread checkmode\n");
316 chip->prevmode = mode;
318 selected = V4L2_TUNER_MODE_MONO;
319 switch (chip->audmode) {
320 case V4L2_TUNER_MODE_MONO:
321 if (mode & V4L2_TUNER_SUB_LANG1)
322 selected = V4L2_TUNER_MODE_LANG1;
324 case V4L2_TUNER_MODE_STEREO:
325 case V4L2_TUNER_MODE_LANG1:
326 if (mode & V4L2_TUNER_SUB_LANG1)
327 selected = V4L2_TUNER_MODE_LANG1;
328 else if (mode & V4L2_TUNER_SUB_STEREO)
329 selected = V4L2_TUNER_MODE_STEREO;
331 case V4L2_TUNER_MODE_LANG2:
332 if (mode & V4L2_TUNER_SUB_LANG2)
333 selected = V4L2_TUNER_MODE_LANG2;
334 else if (mode & V4L2_TUNER_SUB_STEREO)
335 selected = V4L2_TUNER_MODE_STEREO;
337 case V4L2_TUNER_MODE_LANG1_LANG2:
338 if (mode & V4L2_TUNER_SUB_LANG2)
339 selected = V4L2_TUNER_MODE_LANG1_LANG2;
340 else if (mode & V4L2_TUNER_SUB_STEREO)
341 selected = V4L2_TUNER_MODE_STEREO;
343 desc->setmode(chip, selected);
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_SUB_MONO;
383 if (val & TDA9840_DS_DUAL)
384 mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
385 if (val & TDA9840_ST_STEREO)
386 mode |= V4L2_TUNER_SUB_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:
411 case V4L2_TUNER_MODE_LANG1_LANG2:
419 chip_write(chip, TDA9840_SW, t);
422 static int tda9840_checkit(struct CHIPSTATE *chip)
425 rc = chip_read(chip);
426 /* lower 5 bits should be 0 */
427 return ((rc & 0x1f) == 0) ? 1 : 0;
430 /* ---------------------------------------------------------------------- */
431 /* audio chip descriptions - defines+functions for tda985x */
433 /* subaddresses for TDA9855 */
434 #define TDA9855_VR 0x00 /* Volume, right */
435 #define TDA9855_VL 0x01 /* Volume, left */
436 #define TDA9855_BA 0x02 /* Bass */
437 #define TDA9855_TR 0x03 /* Treble */
438 #define TDA9855_SW 0x04 /* Subwoofer - not connected on DTV2000 */
440 /* subaddresses for TDA9850 */
441 #define TDA9850_C4 0x04 /* Control 1 for TDA9850 */
443 /* subaddesses for both chips */
444 #define TDA985x_C5 0x05 /* Control 2 for TDA9850, Control 1 for TDA9855 */
445 #define TDA985x_C6 0x06 /* Control 3 for TDA9850, Control 2 for TDA9855 */
446 #define TDA985x_C7 0x07 /* Control 4 for TDA9850, Control 3 for TDA9855 */
447 #define TDA985x_A1 0x08 /* Alignment 1 for both chips */
448 #define TDA985x_A2 0x09 /* Alignment 2 for both chips */
449 #define TDA985x_A3 0x0a /* Alignment 3 for both chips */
451 /* Masks for bits in TDA9855 subaddresses */
452 /* 0x00 - VR in TDA9855 */
453 /* 0x01 - VL in TDA9855 */
454 /* lower 7 bits control gain from -71dB (0x28) to 16dB (0x7f)
455 * in 1dB steps - mute is 0x27 */
458 /* 0x02 - BA in TDA9855 */
459 /* lower 5 bits control bass gain from -12dB (0x06) to 16.5dB (0x19)
460 * in .5dB steps - 0 is 0x0E */
463 /* 0x03 - TR in TDA9855 */
464 /* 4 bits << 1 control treble gain from -12dB (0x3) to 12dB (0xb)
465 * in 3dB steps - 0 is 0x7 */
467 /* Masks for bits in both chips' subaddresses */
468 /* 0x04 - SW in TDA9855, C4/Control 1 in TDA9850 */
469 /* Unique to TDA9855: */
470 /* 4 bits << 2 control subwoofer/surround gain from -14db (0x1) to 14db (0xf)
471 * in 3dB steps - mute is 0x0 */
473 /* Unique to TDA9850: */
474 /* lower 4 bits control stereo noise threshold, over which stereo turns off
475 * set to values of 0x00 through 0x0f for Ster1 through Ster16 */
478 /* 0x05 - C5 - Control 1 in TDA9855 , Control 2 in TDA9850*/
479 /* Unique to TDA9855: */
480 #define TDA9855_MUTE 1<<7 /* GMU, Mute at outputs */
481 #define TDA9855_AVL 1<<6 /* AVL, Automatic Volume Level */
482 #define TDA9855_LOUD 1<<5 /* Loudness, 1==off */
483 #define TDA9855_SUR 1<<3 /* Surround / Subwoofer 1==.5(L-R) 0==.5(L+R) */
484 /* Bits 0 to 3 select various combinations
485 * of line in and line out, only the
486 * interesting ones are defined */
487 #define TDA9855_EXT 1<<2 /* Selects inputs LIR and LIL. Pins 41 & 12 */
488 #define TDA9855_INT 0 /* Selects inputs LOR and LOL. (internal) */
490 /* Unique to TDA9850: */
491 /* lower 4 bits contol SAP noise threshold, over which SAP turns off
492 * set to values of 0x00 through 0x0f for SAP1 through SAP16 */
495 /* 0x06 - C6 - Control 2 in TDA9855, Control 3 in TDA9850 */
496 /* Common to TDA9855 and TDA9850: */
497 #define TDA985x_SAP 3<<6 /* Selects SAP output, mute if not received */
498 #define TDA985x_MONOSAP 2<<6 /* Selects Mono on left, SAP on right */
499 #define TDA985x_STEREO 1<<6 /* Selects Stereo ouput, mono if not received */
500 #define TDA985x_MONO 0 /* Forces Mono output */
501 #define TDA985x_LMU 1<<3 /* Mute (LOR/LOL for 9855, OUTL/OUTR for 9850) */
503 /* Unique to TDA9855: */
504 #define TDA9855_TZCM 1<<5 /* If set, don't mute till zero crossing */
505 #define TDA9855_VZCM 1<<4 /* If set, don't change volume till zero crossing*/
506 #define TDA9855_LINEAR 0 /* Linear Stereo */
507 #define TDA9855_PSEUDO 1 /* Pseudo Stereo */
508 #define TDA9855_SPAT_30 2 /* Spatial Stereo, 30% anti-phase crosstalk */
509 #define TDA9855_SPAT_50 3 /* Spatial Stereo, 52% anti-phase crosstalk */
510 #define TDA9855_E_MONO 7 /* Forced mono - mono select elseware, so useless*/
512 /* 0x07 - C7 - Control 3 in TDA9855, Control 4 in TDA9850 */
513 /* Common to both TDA9855 and TDA9850: */
514 /* lower 4 bits control input gain from -3.5dB (0x0) to 4dB (0xF)
515 * in .5dB steps - 0dB is 0x7 */
517 /* 0x08, 0x09 - A1 and A2 (read/write) */
518 /* Common to both TDA9855 and TDA9850: */
519 /* lower 5 bites are wideband and spectral expander alignment
520 * from 0x00 to 0x1f - nominal at 0x0f and 0x10 (read/write) */
521 #define TDA985x_STP 1<<5 /* Stereo Pilot/detect (read-only) */
522 #define TDA985x_SAPP 1<<6 /* SAP Pilot/detect (read-only) */
523 #define TDA985x_STS 1<<7 /* Stereo trigger 1= <35mV 0= <30mV (write-only)*/
526 /* Common to both TDA9855 and TDA9850: */
527 /* lower 3 bits control timing current for alignment: -30% (0x0), -20% (0x1),
528 * -10% (0x2), nominal (0x3), +10% (0x6), +20% (0x5), +30% (0x4) */
529 #define TDA985x_ADJ 1<<7 /* Stereo adjust on/off (wideband and spectral */
531 static int tda9855_volume(int val) { return val/0x2e8+0x27; }
532 static int tda9855_bass(int val) { return val/0xccc+0x06; }
533 static int tda9855_treble(int val) { return (val/0x1c71+0x3)<<1; }
535 static int tda985x_getmode(struct CHIPSTATE *chip)
539 /* Add mono mode regardless of SAP and stereo */
540 /* Allows forced mono */
541 mode = V4L2_TUNER_SUB_MONO;
542 val = chip_read(chip);
543 if (val & TDA985x_STP)
544 mode |= V4L2_TUNER_SUB_STEREO;
545 if (val & TDA985x_SAPP)
546 mode |= V4L2_TUNER_SUB_SAP;
550 static void tda985x_setmode(struct CHIPSTATE *chip, int mode)
553 int c6 = chip->shadow.bytes[TDA985x_C6+1] & 0x3f;
556 case V4L2_TUNER_MODE_MONO:
559 case V4L2_TUNER_MODE_STEREO:
560 case V4L2_TUNER_MODE_LANG1:
561 c6 |= TDA985x_STEREO;
563 case V4L2_TUNER_MODE_SAP:
566 case V4L2_TUNER_MODE_LANG1_LANG2:
567 c6 |= TDA985x_MONOSAP;
573 chip_write(chip,TDA985x_C6,c6);
577 /* ---------------------------------------------------------------------- */
578 /* audio chip descriptions - defines+functions for tda9873h */
580 /* Subaddresses for TDA9873H */
582 #define TDA9873_SW 0x00 /* Switching */
583 #define TDA9873_AD 0x01 /* Adjust */
584 #define TDA9873_PT 0x02 /* Port */
586 /* Subaddress 0x00: Switching Data
589 * B1, B0: Input source selection
591 * 1, 0 external stereo
594 #define TDA9873_INP_MASK 3
595 #define TDA9873_INTERNAL 0
596 #define TDA9873_EXT_STEREO 2
597 #define TDA9873_EXT_MONO 1
599 /* B3, B2: output signal select
600 * B4 : transmission mode
603 * 1, 1, 1 Stereo (reversed channel)
610 #define TDA9873_TR_MASK (7 << 2)
611 #define TDA9873_TR_MONO 4
612 #define TDA9873_TR_STEREO 1 << 4
613 #define TDA9873_TR_REVERSE ((1 << 3) | (1 << 2))
614 #define TDA9873_TR_DUALA 1 << 2
615 #define TDA9873_TR_DUALB 1 << 3
616 #define TDA9873_TR_DUALAB 0
618 /* output level controls
619 * B5: output level switch (0 = reduced gain, 1 = normal gain)
620 * B6: mute (1 = muted)
621 * B7: auto-mute (1 = auto-mute enabled)
624 #define TDA9873_GAIN_NORMAL 1 << 5
625 #define TDA9873_MUTE 1 << 6
626 #define TDA9873_AUTOMUTE 1 << 7
628 /* Subaddress 0x01: Adjust/standard */
630 /* Lower 4 bits (C3..C0) control stereo adjustment on R channel (-0.6 - +0.7 dB)
631 * Recommended value is +0 dB
634 #define TDA9873_STEREO_ADJ 0x06 /* 0dB gain */
636 /* Bits C6..C4 control FM stantard
638 * 0, 0, 0 B/G (PAL FM)
647 #define TDA9873_DK1 2
648 #define TDA9873_DK2 3
649 #define TDA9873_DK3 4
652 /* C7 controls identification response time (1=fast/0=normal)
654 #define TDA9873_IDR_NORM 0
655 #define TDA9873_IDR_FAST 1 << 7
658 /* Subaddress 0x02: Port data */
660 /* E1, E0 free programmable ports P1/P2
667 #define TDA9873_PORTS 3
670 #define TDA9873_TST_PORT 1 << 2
672 /* E5..E3 control mono output channel (together with transmission mode bit B4)
677 * 0 1 0 1 mono (from stereo decoder)
679 #define TDA9873_MOUT_MONO 0
680 #define TDA9873_MOUT_FMONO 0
681 #define TDA9873_MOUT_DUALA 0
682 #define TDA9873_MOUT_DUALB 1 << 3
683 #define TDA9873_MOUT_ST 1 << 4
684 #define TDA9873_MOUT_EXTM ((1 << 4) | (1 << 3))
685 #define TDA9873_MOUT_EXTL 1 << 5
686 #define TDA9873_MOUT_EXTR ((1 << 5) | (1 << 3))
687 #define TDA9873_MOUT_EXTLR ((1 << 5) | (1 << 4))
688 #define TDA9873_MOUT_MUTE ((1 << 5) | (1 << 4) | (1 << 3))
690 /* Status bits: (chip read) */
691 #define TDA9873_PONR 0 /* Power-on reset detected if = 1 */
692 #define TDA9873_STEREO 2 /* Stereo sound is identified */
693 #define TDA9873_DUAL 4 /* Dual sound is identified */
695 static int tda9873_getmode(struct CHIPSTATE *chip)
697 struct v4l2_subdev *sd = &chip->sd;
700 val = chip_read(chip);
701 mode = V4L2_TUNER_SUB_MONO;
702 if (val & TDA9873_STEREO)
703 mode |= V4L2_TUNER_SUB_STEREO;
704 if (val & TDA9873_DUAL)
705 mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
706 v4l2_dbg(1, debug, sd, "tda9873_getmode(): raw chip read: %d, return: %d\n",
711 static void tda9873_setmode(struct CHIPSTATE *chip, int mode)
713 struct v4l2_subdev *sd = &chip->sd;
714 int sw_data = chip->shadow.bytes[TDA9873_SW+1] & ~ TDA9873_TR_MASK;
715 /* int adj_data = chip->shadow.bytes[TDA9873_AD+1] ; */
717 if ((sw_data & TDA9873_INP_MASK) != TDA9873_INTERNAL) {
718 v4l2_dbg(1, debug, sd, "tda9873_setmode(): external input\n");
722 v4l2_dbg(1, debug, sd, "tda9873_setmode(): chip->shadow.bytes[%d] = %d\n", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]);
723 v4l2_dbg(1, debug, sd, "tda9873_setmode(): sw_data = %d\n", sw_data);
726 case V4L2_TUNER_MODE_MONO:
727 sw_data |= TDA9873_TR_MONO;
729 case V4L2_TUNER_MODE_STEREO:
730 sw_data |= TDA9873_TR_STEREO;
732 case V4L2_TUNER_MODE_LANG1:
733 sw_data |= TDA9873_TR_DUALA;
735 case V4L2_TUNER_MODE_LANG2:
736 sw_data |= TDA9873_TR_DUALB;
738 case V4L2_TUNER_MODE_LANG1_LANG2:
739 sw_data |= TDA9873_TR_DUALAB;
745 chip_write(chip, TDA9873_SW, sw_data);
746 v4l2_dbg(1, debug, sd, "tda9873_setmode(): req. mode %d; chip_write: %d\n",
750 static int tda9873_checkit(struct CHIPSTATE *chip)
754 if (-1 == (rc = chip_read2(chip,254)))
756 return (rc & ~0x1f) == 0x80;
760 /* ---------------------------------------------------------------------- */
761 /* audio chip description - defines+functions for tda9874h and tda9874a */
762 /* Dariusz Kowalewski <darekk@automex.pl> */
764 /* Subaddresses for TDA9874H and TDA9874A (slave rx) */
765 #define TDA9874A_AGCGR 0x00 /* AGC gain */
766 #define TDA9874A_GCONR 0x01 /* general config */
767 #define TDA9874A_MSR 0x02 /* monitor select */
768 #define TDA9874A_C1FRA 0x03 /* carrier 1 freq. */
769 #define TDA9874A_C1FRB 0x04 /* carrier 1 freq. */
770 #define TDA9874A_C1FRC 0x05 /* carrier 1 freq. */
771 #define TDA9874A_C2FRA 0x06 /* carrier 2 freq. */
772 #define TDA9874A_C2FRB 0x07 /* carrier 2 freq. */
773 #define TDA9874A_C2FRC 0x08 /* carrier 2 freq. */
774 #define TDA9874A_DCR 0x09 /* demodulator config */
775 #define TDA9874A_FMER 0x0a /* FM de-emphasis */
776 #define TDA9874A_FMMR 0x0b /* FM dematrix */
777 #define TDA9874A_C1OLAR 0x0c /* ch.1 output level adj. */
778 #define TDA9874A_C2OLAR 0x0d /* ch.2 output level adj. */
779 #define TDA9874A_NCONR 0x0e /* NICAM config */
780 #define TDA9874A_NOLAR 0x0f /* NICAM output level adj. */
781 #define TDA9874A_NLELR 0x10 /* NICAM lower error limit */
782 #define TDA9874A_NUELR 0x11 /* NICAM upper error limit */
783 #define TDA9874A_AMCONR 0x12 /* audio mute control */
784 #define TDA9874A_SDACOSR 0x13 /* stereo DAC output select */
785 #define TDA9874A_AOSR 0x14 /* analog output select */
786 #define TDA9874A_DAICONR 0x15 /* digital audio interface config */
787 #define TDA9874A_I2SOSR 0x16 /* I2S-bus output select */
788 #define TDA9874A_I2SOLAR 0x17 /* I2S-bus output level adj. */
789 #define TDA9874A_MDACOSR 0x18 /* mono DAC output select (tda9874a) */
790 #define TDA9874A_ESP 0xFF /* easy standard progr. (tda9874a) */
792 /* Subaddresses for TDA9874H and TDA9874A (slave tx) */
793 #define TDA9874A_DSR 0x00 /* device status */
794 #define TDA9874A_NSR 0x01 /* NICAM status */
795 #define TDA9874A_NECR 0x02 /* NICAM error count */
796 #define TDA9874A_DR1 0x03 /* add. data LSB */
797 #define TDA9874A_DR2 0x04 /* add. data MSB */
798 #define TDA9874A_LLRA 0x05 /* monitor level read-out LSB */
799 #define TDA9874A_LLRB 0x06 /* monitor level read-out MSB */
800 #define TDA9874A_SIFLR 0x07 /* SIF level */
801 #define TDA9874A_TR2 252 /* test reg. 2 */
802 #define TDA9874A_TR1 253 /* test reg. 1 */
803 #define TDA9874A_DIC 254 /* device id. code */
804 #define TDA9874A_SIC 255 /* software id. code */
807 static int tda9874a_mode = 1; /* 0: A2, 1: NICAM */
808 static int tda9874a_GCONR = 0xc0; /* default config. input pin: SIFSEL=0 */
809 static int tda9874a_NCONR = 0x01; /* default NICAM config.: AMSEL=0,AMUTE=1 */
810 static int tda9874a_ESP = 0x07; /* default standard: NICAM D/K */
811 static int tda9874a_dic = -1; /* device id. code */
813 /* insmod options for tda9874a */
814 static unsigned int tda9874a_SIF = UNSET;
815 static unsigned int tda9874a_AMSEL = UNSET;
816 static unsigned int tda9874a_STD = UNSET;
817 module_param(tda9874a_SIF, int, 0444);
818 module_param(tda9874a_AMSEL, int, 0444);
819 module_param(tda9874a_STD, int, 0444);
822 * initialization table for tda9874 decoder:
823 * - carrier 1 freq. registers (3 bytes)
824 * - carrier 2 freq. registers (3 bytes)
825 * - demudulator config register
826 * - FM de-emphasis register (slow identification mode)
827 * Note: frequency registers must be written in single i2c transfer.
829 static struct tda9874a_MODES {
832 } tda9874a_modelist[9] = {
833 { "A2, B/G", /* default */
834 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x77,0xA0,0x00, 0x00,0x00 }} },
836 { 9, { TDA9874A_C1FRA, 0x5D,0xC0,0x00, 0x62,0x6A,0xAA, 0x20,0x22 }} },
838 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x82,0x60,0x00, 0x00,0x00 }} },
840 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x8C,0x75,0x55, 0x00,0x00 }} },
842 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x77,0xA0,0x00, 0x00,0x00 }} },
844 { 9, { TDA9874A_C1FRA, 0x7D,0x00,0x00, 0x88,0x8A,0xAA, 0x08,0x33 }} },
846 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x79,0xEA,0xAA, 0x08,0x33 }} },
848 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x08,0x33 }} },
850 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x09,0x33 }} }
853 static int tda9874a_setup(struct CHIPSTATE *chip)
855 struct v4l2_subdev *sd = &chip->sd;
857 chip_write(chip, TDA9874A_AGCGR, 0x00); /* 0 dB */
858 chip_write(chip, TDA9874A_GCONR, tda9874a_GCONR);
859 chip_write(chip, TDA9874A_MSR, (tda9874a_mode) ? 0x03:0x02);
860 if(tda9874a_dic == 0x11) {
861 chip_write(chip, TDA9874A_FMMR, 0x80);
862 } else { /* dic == 0x07 */
863 chip_cmd(chip,"tda9874_modelist",&tda9874a_modelist[tda9874a_STD].cmd);
864 chip_write(chip, TDA9874A_FMMR, 0x00);
866 chip_write(chip, TDA9874A_C1OLAR, 0x00); /* 0 dB */
867 chip_write(chip, TDA9874A_C2OLAR, 0x00); /* 0 dB */
868 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
869 chip_write(chip, TDA9874A_NOLAR, 0x00); /* 0 dB */
870 /* Note: If signal quality is poor you may want to change NICAM */
871 /* error limit registers (NLELR and NUELR) to some greater values. */
872 /* Then the sound would remain stereo, but won't be so clear. */
873 chip_write(chip, TDA9874A_NLELR, 0x14); /* default */
874 chip_write(chip, TDA9874A_NUELR, 0x50); /* default */
876 if(tda9874a_dic == 0x11) {
877 chip_write(chip, TDA9874A_AMCONR, 0xf9);
878 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
879 chip_write(chip, TDA9874A_AOSR, 0x80);
880 chip_write(chip, TDA9874A_MDACOSR, (tda9874a_mode) ? 0x82:0x80);
881 chip_write(chip, TDA9874A_ESP, tda9874a_ESP);
882 } else { /* dic == 0x07 */
883 chip_write(chip, TDA9874A_AMCONR, 0xfb);
884 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
885 chip_write(chip, TDA9874A_AOSR, 0x00); /* or 0x10 */
887 v4l2_dbg(1, debug, sd, "tda9874a_setup(): %s [0x%02X].\n",
888 tda9874a_modelist[tda9874a_STD].name,tda9874a_STD);
892 static int tda9874a_getmode(struct CHIPSTATE *chip)
894 struct v4l2_subdev *sd = &chip->sd;
896 int necr; /* just for debugging */
898 mode = V4L2_TUNER_SUB_MONO;
900 if(-1 == (dsr = chip_read2(chip,TDA9874A_DSR)))
902 if(-1 == (nsr = chip_read2(chip,TDA9874A_NSR)))
904 if(-1 == (necr = chip_read2(chip,TDA9874A_NECR)))
907 /* need to store dsr/nsr somewhere */
908 chip->shadow.bytes[MAXREGS-2] = dsr;
909 chip->shadow.bytes[MAXREGS-1] = nsr;
912 /* Note: DSR.RSSF and DSR.AMSTAT bits are also checked.
913 * If NICAM auto-muting is enabled, DSR.AMSTAT=1 indicates
914 * that sound has (temporarily) switched from NICAM to
915 * mono FM (or AM) on 1st sound carrier due to high NICAM bit
916 * error count. So in fact there is no stereo in this case :-(
917 * But changing the mode to V4L2_TUNER_MODE_MONO would switch
918 * external 4052 multiplexer in audio_hook().
920 if(nsr & 0x02) /* NSR.S/MB=1 */
921 mode |= V4L2_TUNER_SUB_STEREO;
922 if(nsr & 0x01) /* NSR.D/SB=1 */
923 mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
925 if(dsr & 0x02) /* DSR.IDSTE=1 */
926 mode |= V4L2_TUNER_SUB_STEREO;
927 if(dsr & 0x04) /* DSR.IDDUA=1 */
928 mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
931 v4l2_dbg(1, debug, sd, "tda9874a_getmode(): DSR=0x%X, NSR=0x%X, NECR=0x%X, return: %d.\n",
932 dsr, nsr, necr, mode);
936 static void tda9874a_setmode(struct CHIPSTATE *chip, int mode)
938 struct v4l2_subdev *sd = &chip->sd;
940 /* Disable/enable NICAM auto-muting (based on DSR.RSSF status bit). */
941 /* If auto-muting is disabled, we can hear a signal of degrading quality. */
943 if(chip->shadow.bytes[MAXREGS-2] & 0x20) /* DSR.RSSF=1 */
944 tda9874a_NCONR &= 0xfe; /* enable */
946 tda9874a_NCONR |= 0x01; /* disable */
947 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
950 /* Note: TDA9874A supports automatic FM dematrixing (FMMR register)
951 * and has auto-select function for audio output (AOSR register).
952 * Old TDA9874H doesn't support these features.
953 * TDA9874A also has additional mono output pin (OUTM), which
954 * on same (all?) tv-cards is not used, anyway (as well as MONOIN).
956 if(tda9874a_dic == 0x11) {
958 int mdacosr = (tda9874a_mode) ? 0x82:0x80;
961 case V4L2_TUNER_MODE_MONO:
962 case V4L2_TUNER_MODE_STEREO:
964 case V4L2_TUNER_MODE_LANG1:
965 aosr = 0x80; /* auto-select, dual A/A */
966 mdacosr = (tda9874a_mode) ? 0x82:0x80;
968 case V4L2_TUNER_MODE_LANG2:
969 aosr = 0xa0; /* auto-select, dual B/B */
970 mdacosr = (tda9874a_mode) ? 0x83:0x81;
972 case V4L2_TUNER_MODE_LANG1_LANG2:
973 aosr = 0x00; /* always route L to L and R to R */
974 mdacosr = (tda9874a_mode) ? 0x82:0x80;
979 chip_write(chip, TDA9874A_AOSR, aosr);
980 chip_write(chip, TDA9874A_MDACOSR, mdacosr);
982 v4l2_dbg(1, debug, sd, "tda9874a_setmode(): req. mode %d; AOSR=0x%X, MDACOSR=0x%X.\n",
983 mode, aosr, mdacosr);
985 } else { /* dic == 0x07 */
989 case V4L2_TUNER_MODE_MONO:
990 fmmr = 0x00; /* mono */
991 aosr = 0x10; /* A/A */
993 case V4L2_TUNER_MODE_STEREO:
996 aosr = 0x00; /* handled by NICAM auto-mute */
998 fmmr = (tda9874a_ESP == 1) ? 0x05 : 0x04; /* stereo */
1002 case V4L2_TUNER_MODE_LANG1:
1003 fmmr = 0x02; /* dual */
1004 aosr = 0x10; /* dual A/A */
1006 case V4L2_TUNER_MODE_LANG2:
1007 fmmr = 0x02; /* dual */
1008 aosr = 0x20; /* dual B/B */
1010 case V4L2_TUNER_MODE_LANG1_LANG2:
1011 fmmr = 0x02; /* dual */
1012 aosr = 0x00; /* dual A/B */
1017 chip_write(chip, TDA9874A_FMMR, fmmr);
1018 chip_write(chip, TDA9874A_AOSR, aosr);
1020 v4l2_dbg(1, debug, sd, "tda9874a_setmode(): req. mode %d; FMMR=0x%X, AOSR=0x%X.\n",
1025 static int tda9874a_checkit(struct CHIPSTATE *chip)
1027 struct v4l2_subdev *sd = &chip->sd;
1028 int dic,sic; /* device id. and software id. codes */
1030 if(-1 == (dic = chip_read2(chip,TDA9874A_DIC)))
1032 if(-1 == (sic = chip_read2(chip,TDA9874A_SIC)))
1035 v4l2_dbg(1, debug, sd, "tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", dic, sic);
1037 if((dic == 0x11)||(dic == 0x07)) {
1038 v4l2_info(sd, "found tda9874%s.\n", (dic == 0x11) ? "a" : "h");
1039 tda9874a_dic = dic; /* remember device id. */
1042 return 0; /* not found */
1045 static int tda9874a_initialize(struct CHIPSTATE *chip)
1047 if (tda9874a_SIF > 2)
1049 if (tda9874a_STD >= ARRAY_SIZE(tda9874a_modelist))
1051 if(tda9874a_AMSEL > 1)
1054 if(tda9874a_SIF == 1)
1055 tda9874a_GCONR = 0xc0; /* sound IF input 1 */
1057 tda9874a_GCONR = 0xc1; /* sound IF input 2 */
1059 tda9874a_ESP = tda9874a_STD;
1060 tda9874a_mode = (tda9874a_STD < 5) ? 0 : 1;
1062 if(tda9874a_AMSEL == 0)
1063 tda9874a_NCONR = 0x01; /* auto-mute: analog mono input */
1065 tda9874a_NCONR = 0x05; /* auto-mute: 1st carrier FM or AM */
1067 tda9874a_setup(chip);
1071 /* ---------------------------------------------------------------------- */
1072 /* audio chip description - defines+functions for tda9875 */
1073 /* The TDA9875 is made by Philips Semiconductor
1074 * http://www.semiconductors.philips.com
1075 * TDA9875: I2C-bus controlled DSP audio processor, FM demodulator
1079 /* subaddresses for TDA9875 */
1080 #define TDA9875_MUT 0x12 /*General mute (value --> 0b11001100*/
1081 #define TDA9875_CFG 0x01 /* Config register (value --> 0b00000000 */
1082 #define TDA9875_DACOS 0x13 /*DAC i/o select (ADC) 0b0000100*/
1083 #define TDA9875_LOSR 0x16 /*Line output select regirter 0b0100 0001*/
1085 #define TDA9875_CH1V 0x0c /*Channel 1 volume (mute)*/
1086 #define TDA9875_CH2V 0x0d /*Channel 2 volume (mute)*/
1087 #define TDA9875_SC1 0x14 /*SCART 1 in (mono)*/
1088 #define TDA9875_SC2 0x15 /*SCART 2 in (mono)*/
1090 #define TDA9875_ADCIS 0x17 /*ADC input select (mono) 0b0110 000*/
1091 #define TDA9875_AER 0x19 /*Audio effect (AVL+Pseudo) 0b0000 0110*/
1092 #define TDA9875_MCS 0x18 /*Main channel select (DAC) 0b0000100*/
1093 #define TDA9875_MVL 0x1a /* Main volume gauche */
1094 #define TDA9875_MVR 0x1b /* Main volume droite */
1095 #define TDA9875_MBA 0x1d /* Main Basse */
1096 #define TDA9875_MTR 0x1e /* Main treble */
1097 #define TDA9875_ACS 0x1f /* Auxiliary channel select (FM) 0b0000000*/
1098 #define TDA9875_AVL 0x20 /* Auxiliary volume gauche */
1099 #define TDA9875_AVR 0x21 /* Auxiliary volume droite */
1100 #define TDA9875_ABA 0x22 /* Auxiliary Basse */
1101 #define TDA9875_ATR 0x23 /* Auxiliary treble */
1103 #define TDA9875_MSR 0x02 /* Monitor select register */
1104 #define TDA9875_C1MSB 0x03 /* Carrier 1 (FM) frequency register MSB */
1105 #define TDA9875_C1MIB 0x04 /* Carrier 1 (FM) frequency register (16-8]b */
1106 #define TDA9875_C1LSB 0x05 /* Carrier 1 (FM) frequency register LSB */
1107 #define TDA9875_C2MSB 0x06 /* Carrier 2 (nicam) frequency register MSB */
1108 #define TDA9875_C2MIB 0x07 /* Carrier 2 (nicam) frequency register (16-8]b */
1109 #define TDA9875_C2LSB 0x08 /* Carrier 2 (nicam) frequency register LSB */
1110 #define TDA9875_DCR 0x09 /* Demodulateur configuration regirter*/
1111 #define TDA9875_DEEM 0x0a /* FM de-emphasis regirter*/
1112 #define TDA9875_FMAT 0x0b /* FM Matrix regirter*/
1115 #define TDA9875_MUTE_ON 0xff /* general mute */
1116 #define TDA9875_MUTE_OFF 0xcc /* general no mute */
1118 static int tda9875_initialize(struct CHIPSTATE *chip)
1120 chip_write(chip, TDA9875_CFG, 0xd0); /*reg de config 0 (reset)*/
1121 chip_write(chip, TDA9875_MSR, 0x03); /* Monitor 0b00000XXX*/
1122 chip_write(chip, TDA9875_C1MSB, 0x00); /*Car1(FM) MSB XMHz*/
1123 chip_write(chip, TDA9875_C1MIB, 0x00); /*Car1(FM) MIB XMHz*/
1124 chip_write(chip, TDA9875_C1LSB, 0x00); /*Car1(FM) LSB XMHz*/
1125 chip_write(chip, TDA9875_C2MSB, 0x00); /*Car2(NICAM) MSB XMHz*/
1126 chip_write(chip, TDA9875_C2MIB, 0x00); /*Car2(NICAM) MIB XMHz*/
1127 chip_write(chip, TDA9875_C2LSB, 0x00); /*Car2(NICAM) LSB XMHz*/
1128 chip_write(chip, TDA9875_DCR, 0x00); /*Demod config 0x00*/
1129 chip_write(chip, TDA9875_DEEM, 0x44); /*DE-Emph 0b0100 0100*/
1130 chip_write(chip, TDA9875_FMAT, 0x00); /*FM Matrix reg 0x00*/
1131 chip_write(chip, TDA9875_SC1, 0x00); /* SCART 1 (SC1)*/
1132 chip_write(chip, TDA9875_SC2, 0x01); /* SCART 2 (sc2)*/
1134 chip_write(chip, TDA9875_CH1V, 0x10); /* Channel volume 1 mute*/
1135 chip_write(chip, TDA9875_CH2V, 0x10); /* Channel volume 2 mute */
1136 chip_write(chip, TDA9875_DACOS, 0x02); /* sig DAC i/o(in:nicam)*/
1137 chip_write(chip, TDA9875_ADCIS, 0x6f); /* sig ADC input(in:mono)*/
1138 chip_write(chip, TDA9875_LOSR, 0x00); /* line out (in:mono)*/
1139 chip_write(chip, TDA9875_AER, 0x00); /*06 Effect (AVL+PSEUDO) */
1140 chip_write(chip, TDA9875_MCS, 0x44); /* Main ch select (DAC) */
1141 chip_write(chip, TDA9875_MVL, 0x03); /* Vol Main left 10dB */
1142 chip_write(chip, TDA9875_MVR, 0x03); /* Vol Main right 10dB*/
1143 chip_write(chip, TDA9875_MBA, 0x00); /* Main Bass Main 0dB*/
1144 chip_write(chip, TDA9875_MTR, 0x00); /* Main Treble Main 0dB*/
1145 chip_write(chip, TDA9875_ACS, 0x44); /* Aux chan select (dac)*/
1146 chip_write(chip, TDA9875_AVL, 0x00); /* Vol Aux left 0dB*/
1147 chip_write(chip, TDA9875_AVR, 0x00); /* Vol Aux right 0dB*/
1148 chip_write(chip, TDA9875_ABA, 0x00); /* Aux Bass Main 0dB*/
1149 chip_write(chip, TDA9875_ATR, 0x00); /* Aux Aigus Main 0dB*/
1151 chip_write(chip, TDA9875_MUT, 0xcc); /* General mute */
1155 static int tda9875_volume(int val) { return (unsigned char)(val / 602 - 84); }
1156 static int tda9875_bass(int val) { return (unsigned char)(max(-12, val / 2115 - 15)); }
1157 static int tda9875_treble(int val) { return (unsigned char)(val / 2622 - 12); }
1159 /* ----------------------------------------------------------------------- */
1162 /* *********************** *
1163 * i2c interface functions *
1164 * *********************** */
1166 static int tda9875_checkit(struct CHIPSTATE *chip)
1168 struct v4l2_subdev *sd = &chip->sd;
1171 dic = chip_read2(chip, 254);
1172 rev = chip_read2(chip, 255);
1174 if (dic == 0 || dic == 2) { /* tda9875 and tda9875A */
1175 v4l2_info(sd, "found tda9875%s rev. %d.\n",
1176 dic == 0 ? "" : "A", rev);
1182 /* ---------------------------------------------------------------------- */
1183 /* audio chip descriptions - defines+functions for tea6420 */
1185 #define TEA6300_VL 0x00 /* volume left */
1186 #define TEA6300_VR 0x01 /* volume right */
1187 #define TEA6300_BA 0x02 /* bass */
1188 #define TEA6300_TR 0x03 /* treble */
1189 #define TEA6300_FA 0x04 /* fader control */
1190 #define TEA6300_S 0x05 /* switch register */
1191 /* values for those registers: */
1192 #define TEA6300_S_SA 0x01 /* stereo A input */
1193 #define TEA6300_S_SB 0x02 /* stereo B */
1194 #define TEA6300_S_SC 0x04 /* stereo C */
1195 #define TEA6300_S_GMU 0x80 /* general mute */
1197 #define TEA6320_V 0x00 /* volume (0-5)/loudness off (6)/zero crossing mute(7) */
1198 #define TEA6320_FFR 0x01 /* fader front right (0-5) */
1199 #define TEA6320_FFL 0x02 /* fader front left (0-5) */
1200 #define TEA6320_FRR 0x03 /* fader rear right (0-5) */
1201 #define TEA6320_FRL 0x04 /* fader rear left (0-5) */
1202 #define TEA6320_BA 0x05 /* bass (0-4) */
1203 #define TEA6320_TR 0x06 /* treble (0-4) */
1204 #define TEA6320_S 0x07 /* switch register */
1205 /* values for those registers: */
1206 #define TEA6320_S_SA 0x07 /* stereo A input */
1207 #define TEA6320_S_SB 0x06 /* stereo B */
1208 #define TEA6320_S_SC 0x05 /* stereo C */
1209 #define TEA6320_S_SD 0x04 /* stereo D */
1210 #define TEA6320_S_GMU 0x80 /* general mute */
1212 #define TEA6420_S_SA 0x00 /* stereo A input */
1213 #define TEA6420_S_SB 0x01 /* stereo B */
1214 #define TEA6420_S_SC 0x02 /* stereo C */
1215 #define TEA6420_S_SD 0x03 /* stereo D */
1216 #define TEA6420_S_SE 0x04 /* stereo E */
1217 #define TEA6420_S_GMU 0x05 /* general mute */
1219 static int tea6300_shift10(int val) { return val >> 10; }
1220 static int tea6300_shift12(int val) { return val >> 12; }
1222 /* Assumes 16bit input (values 0x3f to 0x0c are unique, values less than */
1223 /* 0x0c mirror those immediately higher) */
1224 static int tea6320_volume(int val) { return (val / (65535/(63-12)) + 12) & 0x3f; }
1225 static int tea6320_shift11(int val) { return val >> 11; }
1226 static int tea6320_initialize(struct CHIPSTATE * chip)
1228 chip_write(chip, TEA6320_FFR, 0x3f);
1229 chip_write(chip, TEA6320_FFL, 0x3f);
1230 chip_write(chip, TEA6320_FRR, 0x3f);
1231 chip_write(chip, TEA6320_FRL, 0x3f);
1237 /* ---------------------------------------------------------------------- */
1238 /* audio chip descriptions - defines+functions for tda8425 */
1240 #define TDA8425_VL 0x00 /* volume left */
1241 #define TDA8425_VR 0x01 /* volume right */
1242 #define TDA8425_BA 0x02 /* bass */
1243 #define TDA8425_TR 0x03 /* treble */
1244 #define TDA8425_S1 0x08 /* switch functions */
1245 /* values for those registers: */
1246 #define TDA8425_S1_OFF 0xEE /* audio off (mute on) */
1247 #define TDA8425_S1_CH1 0xCE /* audio channel 1 (mute off) - "linear stereo" mode */
1248 #define TDA8425_S1_CH2 0xCF /* audio channel 2 (mute off) - "linear stereo" mode */
1249 #define TDA8425_S1_MU 0x20 /* mute bit */
1250 #define TDA8425_S1_STEREO 0x18 /* stereo bits */
1251 #define TDA8425_S1_STEREO_SPATIAL 0x18 /* spatial stereo */
1252 #define TDA8425_S1_STEREO_LINEAR 0x08 /* linear stereo */
1253 #define TDA8425_S1_STEREO_PSEUDO 0x10 /* pseudo stereo */
1254 #define TDA8425_S1_STEREO_MONO 0x00 /* forced mono */
1255 #define TDA8425_S1_ML 0x06 /* language selector */
1256 #define TDA8425_S1_ML_SOUND_A 0x02 /* sound a */
1257 #define TDA8425_S1_ML_SOUND_B 0x04 /* sound b */
1258 #define TDA8425_S1_ML_STEREO 0x06 /* stereo */
1259 #define TDA8425_S1_IS 0x01 /* channel selector */
1262 static int tda8425_shift10(int val) { return (val >> 10) | 0xc0; }
1263 static int tda8425_shift12(int val) { return (val >> 12) | 0xf0; }
1265 static void tda8425_setmode(struct CHIPSTATE *chip, int mode)
1267 int s1 = chip->shadow.bytes[TDA8425_S1+1] & 0xe1;
1270 case V4L2_TUNER_MODE_LANG1:
1271 s1 |= TDA8425_S1_ML_SOUND_A;
1272 s1 |= TDA8425_S1_STEREO_PSEUDO;
1274 case V4L2_TUNER_MODE_LANG2:
1275 s1 |= TDA8425_S1_ML_SOUND_B;
1276 s1 |= TDA8425_S1_STEREO_PSEUDO;
1278 case V4L2_TUNER_MODE_LANG1_LANG2:
1279 s1 |= TDA8425_S1_ML_STEREO;
1280 s1 |= TDA8425_S1_STEREO_LINEAR;
1282 case V4L2_TUNER_MODE_MONO:
1283 s1 |= TDA8425_S1_ML_STEREO;
1284 s1 |= TDA8425_S1_STEREO_MONO;
1286 case V4L2_TUNER_MODE_STEREO:
1287 s1 |= TDA8425_S1_ML_STEREO;
1288 s1 |= TDA8425_S1_STEREO_SPATIAL;
1293 chip_write(chip,TDA8425_S1,s1);
1297 /* ---------------------------------------------------------------------- */
1298 /* audio chip descriptions - defines+functions for pic16c54 (PV951) */
1300 /* the registers of 16C54, I2C sub address. */
1301 #define PIC16C54_REG_KEY_CODE 0x01 /* Not use. */
1302 #define PIC16C54_REG_MISC 0x02
1304 /* bit definition of the RESET register, I2C data. */
1305 #define PIC16C54_MISC_RESET_REMOTE_CTL 0x01 /* bit 0, Reset to receive the key */
1306 /* code of remote controller */
1307 #define PIC16C54_MISC_MTS_MAIN 0x02 /* bit 1 */
1308 #define PIC16C54_MISC_MTS_SAP 0x04 /* bit 2 */
1309 #define PIC16C54_MISC_MTS_BOTH 0x08 /* bit 3 */
1310 #define PIC16C54_MISC_SND_MUTE 0x10 /* bit 4, Mute Audio(Line-in and Tuner) */
1311 #define PIC16C54_MISC_SND_NOTMUTE 0x20 /* bit 5 */
1312 #define PIC16C54_MISC_SWITCH_TUNER 0x40 /* bit 6 , Switch to Line-in */
1313 #define PIC16C54_MISC_SWITCH_LINE 0x80 /* bit 7 , Switch to Tuner */
1315 /* ---------------------------------------------------------------------- */
1316 /* audio chip descriptions - defines+functions for TA8874Z */
1318 /* write 1st byte */
1319 #define TA8874Z_LED_STE 0x80
1320 #define TA8874Z_LED_BIL 0x40
1321 #define TA8874Z_LED_EXT 0x20
1322 #define TA8874Z_MONO_SET 0x10
1323 #define TA8874Z_MUTE 0x08
1324 #define TA8874Z_F_MONO 0x04
1325 #define TA8874Z_MODE_SUB 0x02
1326 #define TA8874Z_MODE_MAIN 0x01
1328 /* write 2nd byte */
1329 /*#define TA8874Z_TI 0x80 */ /* test mode */
1330 #define TA8874Z_SEPARATION 0x3f
1331 #define TA8874Z_SEPARATION_DEFAULT 0x10
1334 #define TA8874Z_B1 0x80
1335 #define TA8874Z_B0 0x40
1336 #define TA8874Z_CHAG_FLAG 0x20
1344 static int ta8874z_getmode(struct CHIPSTATE *chip)
1348 val = chip_read(chip);
1349 mode = V4L2_TUNER_SUB_MONO;
1350 if (val & TA8874Z_B1){
1351 mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1352 }else if (!(val & TA8874Z_B0)){
1353 mode |= V4L2_TUNER_SUB_STEREO;
1355 /* v4l_dbg(1, debug, chip->c, "ta8874z_getmode(): raw chip read: 0x%02x, return: 0x%02x\n", val, mode); */
1359 static audiocmd ta8874z_stereo = { 2, {0, TA8874Z_SEPARATION_DEFAULT}};
1360 static audiocmd ta8874z_mono = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}};
1361 static audiocmd ta8874z_main = {2, { 0, TA8874Z_SEPARATION_DEFAULT}};
1362 static audiocmd ta8874z_sub = {2, { TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}};
1363 static audiocmd ta8874z_both = {2, { TA8874Z_MODE_MAIN | TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}};
1365 static void ta8874z_setmode(struct CHIPSTATE *chip, int mode)
1367 struct v4l2_subdev *sd = &chip->sd;
1371 v4l2_dbg(1, debug, sd, "ta8874z_setmode(): mode: 0x%02x\n", mode);
1374 case V4L2_TUNER_MODE_MONO:
1377 case V4L2_TUNER_MODE_STEREO:
1378 t = &ta8874z_stereo;
1380 case V4L2_TUNER_MODE_LANG1:
1383 case V4L2_TUNER_MODE_LANG2:
1386 case V4L2_TUNER_MODE_LANG1_LANG2:
1394 chip_cmd(chip, "TA8874Z", t);
1397 static int ta8874z_checkit(struct CHIPSTATE *chip)
1400 rc = chip_read(chip);
1401 return ((rc & 0x1f) == 0x1f) ? 1 : 0;
1404 /* ---------------------------------------------------------------------- */
1405 /* audio chip descriptions - struct CHIPDESC */
1407 /* insmod options to enable/disable individual audio chips */
1408 static int tda8425 = 1;
1409 static int tda9840 = 1;
1410 static int tda9850 = 1;
1411 static int tda9855 = 1;
1412 static int tda9873 = 1;
1413 static int tda9874a = 1;
1414 static int tda9875 = 1;
1415 static int tea6300; /* default 0 - address clash with msp34xx */
1416 static int tea6320; /* default 0 - address clash with msp34xx */
1417 static int tea6420 = 1;
1418 static int pic16c54 = 1;
1419 static int ta8874z; /* default 0 - address clash with tda9840 */
1421 module_param(tda8425, int, 0444);
1422 module_param(tda9840, int, 0444);
1423 module_param(tda9850, int, 0444);
1424 module_param(tda9855, int, 0444);
1425 module_param(tda9873, int, 0444);
1426 module_param(tda9874a, int, 0444);
1427 module_param(tda9875, int, 0444);
1428 module_param(tea6300, int, 0444);
1429 module_param(tea6320, int, 0444);
1430 module_param(tea6420, int, 0444);
1431 module_param(pic16c54, int, 0444);
1432 module_param(ta8874z, int, 0444);
1434 static struct CHIPDESC chiplist[] = {
1437 .insmodopt = &tda9840,
1438 .addr_lo = I2C_ADDR_TDA9840 >> 1,
1439 .addr_hi = I2C_ADDR_TDA9840 >> 1,
1441 .flags = CHIP_NEED_CHECKMODE,
1444 .checkit = tda9840_checkit,
1445 .getmode = tda9840_getmode,
1446 .setmode = tda9840_setmode,
1448 .init = { 2, { TDA9840_TEST, TDA9840_TEST_INT1SN
1449 /* ,TDA9840_SW, TDA9840_MONO */} }
1453 .insmodopt = &tda9873,
1454 .addr_lo = I2C_ADDR_TDA985x_L >> 1,
1455 .addr_hi = I2C_ADDR_TDA985x_H >> 1,
1457 .flags = CHIP_HAS_INPUTSEL | CHIP_NEED_CHECKMODE,
1460 .checkit = tda9873_checkit,
1461 .getmode = tda9873_getmode,
1462 .setmode = tda9873_setmode,
1464 .init = { 4, { TDA9873_SW, 0xa4, 0x06, 0x03 } },
1465 .inputreg = TDA9873_SW,
1466 .inputmute = TDA9873_MUTE | TDA9873_AUTOMUTE,
1467 .inputmap = {0xa0, 0xa2, 0xa0, 0xa0},
1468 .inputmask = TDA9873_INP_MASK|TDA9873_MUTE|TDA9873_AUTOMUTE,
1472 .name = "tda9874h/a",
1473 .insmodopt = &tda9874a,
1474 .addr_lo = I2C_ADDR_TDA9874 >> 1,
1475 .addr_hi = I2C_ADDR_TDA9874 >> 1,
1476 .flags = CHIP_NEED_CHECKMODE,
1479 .initialize = tda9874a_initialize,
1480 .checkit = tda9874a_checkit,
1481 .getmode = tda9874a_getmode,
1482 .setmode = tda9874a_setmode,
1486 .insmodopt = &tda9875,
1487 .addr_lo = I2C_ADDR_TDA9875 >> 1,
1488 .addr_hi = I2C_ADDR_TDA9875 >> 1,
1489 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE,
1492 .initialize = tda9875_initialize,
1493 .checkit = tda9875_checkit,
1494 .volfunc = tda9875_volume,
1495 .bassfunc = tda9875_bass,
1496 .treblefunc = tda9875_treble,
1497 .leftreg = TDA9875_MVL,
1498 .rightreg = TDA9875_MVR,
1499 .bassreg = TDA9875_MBA,
1500 .treblereg = TDA9875_MTR,
1506 .insmodopt = &tda9850,
1507 .addr_lo = I2C_ADDR_TDA985x_L >> 1,
1508 .addr_hi = I2C_ADDR_TDA985x_H >> 1,
1511 .getmode = tda985x_getmode,
1512 .setmode = tda985x_setmode,
1514 .init = { 8, { TDA9850_C4, 0x08, 0x08, TDA985x_STEREO, 0x07, 0x10, 0x10, 0x03 } }
1518 .insmodopt = &tda9855,
1519 .addr_lo = I2C_ADDR_TDA985x_L >> 1,
1520 .addr_hi = I2C_ADDR_TDA985x_H >> 1,
1522 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE,
1524 .leftreg = TDA9855_VL,
1525 .rightreg = TDA9855_VR,
1526 .bassreg = TDA9855_BA,
1527 .treblereg = TDA9855_TR,
1530 .volfunc = tda9855_volume,
1531 .bassfunc = tda9855_bass,
1532 .treblefunc = tda9855_treble,
1533 .getmode = tda985x_getmode,
1534 .setmode = tda985x_setmode,
1536 .init = { 12, { 0, 0x6f, 0x6f, 0x0e, 0x07<<1, 0x8<<2,
1537 TDA9855_MUTE | TDA9855_AVL | TDA9855_LOUD | TDA9855_INT,
1538 TDA985x_STEREO | TDA9855_LINEAR | TDA9855_TZCM | TDA9855_VZCM,
1539 0x07, 0x10, 0x10, 0x03 }}
1543 .insmodopt = &tea6300,
1544 .addr_lo = I2C_ADDR_TEA6300 >> 1,
1545 .addr_hi = I2C_ADDR_TEA6300 >> 1,
1547 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1549 .leftreg = TEA6300_VR,
1550 .rightreg = TEA6300_VL,
1551 .bassreg = TEA6300_BA,
1552 .treblereg = TEA6300_TR,
1555 .volfunc = tea6300_shift10,
1556 .bassfunc = tea6300_shift12,
1557 .treblefunc = tea6300_shift12,
1559 .inputreg = TEA6300_S,
1560 .inputmap = { TEA6300_S_SA, TEA6300_S_SB, TEA6300_S_SC },
1561 .inputmute = TEA6300_S_GMU,
1565 .insmodopt = &tea6320,
1566 .addr_lo = I2C_ADDR_TEA6300 >> 1,
1567 .addr_hi = I2C_ADDR_TEA6300 >> 1,
1569 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1571 .leftreg = TEA6320_V,
1572 .rightreg = TEA6320_V,
1573 .bassreg = TEA6320_BA,
1574 .treblereg = TEA6320_TR,
1577 .initialize = tea6320_initialize,
1578 .volfunc = tea6320_volume,
1579 .bassfunc = tea6320_shift11,
1580 .treblefunc = tea6320_shift11,
1582 .inputreg = TEA6320_S,
1583 .inputmap = { TEA6320_S_SA, TEA6420_S_SB, TEA6300_S_SC, TEA6320_S_SD },
1584 .inputmute = TEA6300_S_GMU,
1588 .insmodopt = &tea6420,
1589 .addr_lo = I2C_ADDR_TEA6420 >> 1,
1590 .addr_hi = I2C_ADDR_TEA6420 >> 1,
1592 .flags = CHIP_HAS_INPUTSEL,
1595 .inputmap = { TEA6420_S_SA, TEA6420_S_SB, TEA6420_S_SC },
1596 .inputmute = TEA6300_S_GMU,
1600 .insmodopt = &tda8425,
1601 .addr_lo = I2C_ADDR_TDA8425 >> 1,
1602 .addr_hi = I2C_ADDR_TDA8425 >> 1,
1604 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1606 .leftreg = TDA8425_VL,
1607 .rightreg = TDA8425_VR,
1608 .bassreg = TDA8425_BA,
1609 .treblereg = TDA8425_TR,
1612 .volfunc = tda8425_shift10,
1613 .bassfunc = tda8425_shift12,
1614 .treblefunc = tda8425_shift12,
1615 .setmode = tda8425_setmode,
1617 .inputreg = TDA8425_S1,
1618 .inputmap = { TDA8425_S1_CH1, TDA8425_S1_CH1, TDA8425_S1_CH1 },
1619 .inputmute = TDA8425_S1_OFF,
1623 .name = "pic16c54 (PV951)",
1624 .insmodopt = &pic16c54,
1625 .addr_lo = I2C_ADDR_PIC16C54 >> 1,
1626 .addr_hi = I2C_ADDR_PIC16C54>> 1,
1628 .flags = CHIP_HAS_INPUTSEL,
1630 .inputreg = PIC16C54_REG_MISC,
1631 .inputmap = {PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_TUNER,
1632 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1633 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1634 PIC16C54_MISC_SND_MUTE},
1635 .inputmute = PIC16C54_MISC_SND_MUTE,
1639 .checkit = ta8874z_checkit,
1640 .insmodopt = &ta8874z,
1641 .addr_lo = I2C_ADDR_TDA9840 >> 1,
1642 .addr_hi = I2C_ADDR_TDA9840 >> 1,
1646 .getmode = ta8874z_getmode,
1647 .setmode = ta8874z_setmode,
1649 .init = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}},
1651 { .name = NULL } /* EOF */
1655 /* ---------------------------------------------------------------------- */
1657 static int tvaudio_g_ctrl(struct v4l2_subdev *sd,
1658 struct v4l2_control *ctrl)
1660 struct CHIPSTATE *chip = to_state(sd);
1661 struct CHIPDESC *desc = chip->desc;
1664 case V4L2_CID_AUDIO_MUTE:
1665 if (!(desc->flags & CHIP_HAS_INPUTSEL))
1667 ctrl->value=chip->muted;
1669 case V4L2_CID_AUDIO_VOLUME:
1670 if (!(desc->flags & CHIP_HAS_VOLUME))
1672 ctrl->value = max(chip->left,chip->right);
1674 case V4L2_CID_AUDIO_BALANCE:
1677 if (!(desc->flags & CHIP_HAS_VOLUME))
1679 volume = max(chip->left,chip->right);
1681 ctrl->value=(32768*min(chip->left,chip->right))/volume;
1686 case V4L2_CID_AUDIO_BASS:
1687 if (!(desc->flags & CHIP_HAS_BASSTREBLE))
1689 ctrl->value = chip->bass;
1691 case V4L2_CID_AUDIO_TREBLE:
1692 if (!(desc->flags & CHIP_HAS_BASSTREBLE))
1694 ctrl->value = chip->treble;
1700 static int tvaudio_s_ctrl(struct v4l2_subdev *sd,
1701 struct v4l2_control *ctrl)
1703 struct CHIPSTATE *chip = to_state(sd);
1704 struct CHIPDESC *desc = chip->desc;
1707 case V4L2_CID_AUDIO_MUTE:
1708 if (!(desc->flags & CHIP_HAS_INPUTSEL))
1711 if (ctrl->value < 0 || ctrl->value >= 2)
1713 chip->muted = ctrl->value;
1715 chip_write_masked(chip,desc->inputreg,desc->inputmute,desc->inputmask);
1717 chip_write_masked(chip,desc->inputreg,
1718 desc->inputmap[chip->input],desc->inputmask);
1720 case V4L2_CID_AUDIO_VOLUME:
1724 if (!(desc->flags & CHIP_HAS_VOLUME))
1727 volume = max(chip->left,chip->right);
1729 balance=(32768*min(chip->left,chip->right))/volume;
1734 chip->left = (min(65536 - balance,32768) * volume) / 32768;
1735 chip->right = (min(balance,volume *(__u16)32768)) / 32768;
1737 chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
1738 chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
1742 case V4L2_CID_AUDIO_BALANCE:
1744 int volume, balance;
1746 if (!(desc->flags & CHIP_HAS_VOLUME))
1749 volume = max(chip->left, chip->right);
1750 balance = ctrl->value;
1751 chip->left = (min(65536 - balance, 32768) * volume) / 32768;
1752 chip->right = (min(balance, volume * (__u16)32768)) / 32768;
1754 chip_write(chip, desc->leftreg, desc->volfunc(chip->left));
1755 chip_write(chip, desc->rightreg, desc->volfunc(chip->right));
1759 case V4L2_CID_AUDIO_BASS:
1760 if (!(desc->flags & CHIP_HAS_BASSTREBLE))
1762 chip->bass = ctrl->value;
1763 chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
1766 case V4L2_CID_AUDIO_TREBLE:
1767 if (!(desc->flags & CHIP_HAS_BASSTREBLE))
1769 chip->treble = ctrl->value;
1770 chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
1778 /* ---------------------------------------------------------------------- */
1779 /* video4linux interface */
1781 static int tvaudio_s_radio(struct v4l2_subdev *sd)
1783 struct CHIPSTATE *chip = to_state(sd);
1786 /* del_timer(&chip->wt); */
1790 static int tvaudio_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
1792 struct CHIPSTATE *chip = to_state(sd);
1793 struct CHIPDESC *desc = chip->desc;
1796 case V4L2_CID_AUDIO_MUTE:
1797 if (desc->flags & CHIP_HAS_INPUTSEL)
1798 return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
1800 case V4L2_CID_AUDIO_VOLUME:
1801 if (desc->flags & CHIP_HAS_VOLUME)
1802 return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880);
1804 case V4L2_CID_AUDIO_BALANCE:
1805 if (desc->flags & CHIP_HAS_VOLUME)
1806 return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
1808 case V4L2_CID_AUDIO_BASS:
1809 case V4L2_CID_AUDIO_TREBLE:
1810 if (desc->flags & CHIP_HAS_BASSTREBLE)
1811 return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
1819 static int tvaudio_s_routing(struct v4l2_subdev *sd,
1820 u32 input, u32 output, u32 config)
1822 struct CHIPSTATE *chip = to_state(sd);
1823 struct CHIPDESC *desc = chip->desc;
1825 if (!(desc->flags & CHIP_HAS_INPUTSEL))
1829 /* There are four inputs: tuner, radio, extern and intern. */
1830 chip->input = input;
1833 chip_write_masked(chip, desc->inputreg,
1834 desc->inputmap[chip->input], desc->inputmask);
1838 static int tvaudio_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
1840 struct CHIPSTATE *chip = to_state(sd);
1841 struct CHIPDESC *desc = chip->desc;
1848 switch (vt->audmode) {
1849 case V4L2_TUNER_MODE_MONO:
1850 case V4L2_TUNER_MODE_STEREO:
1851 case V4L2_TUNER_MODE_LANG1:
1852 case V4L2_TUNER_MODE_LANG2:
1853 case V4L2_TUNER_MODE_LANG1_LANG2:
1858 chip->audmode = vt->audmode;
1861 wake_up_process(chip->thread);
1863 desc->setmode(chip, vt->audmode);
1868 static int tvaudio_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
1870 struct CHIPSTATE *chip = to_state(sd);
1871 struct CHIPDESC *desc = chip->desc;
1878 vt->audmode = chip->audmode;
1879 vt->rxsubchans = desc->getmode(chip);
1880 vt->capability = V4L2_TUNER_CAP_STEREO |
1881 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1886 static int tvaudio_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
1888 struct CHIPSTATE *chip = to_state(sd);
1894 static int tvaudio_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *freq)
1896 struct CHIPSTATE *chip = to_state(sd);
1897 struct CHIPDESC *desc = chip->desc;
1899 /* For chips that provide getmode and setmode, and doesn't
1900 automatically follows the stereo carrier, a kthread is
1901 created to set the audio standard. In this case, when then
1902 the video channel is changed, tvaudio starts on MONO mode.
1903 After waiting for 2 seconds, the kernel thread is called,
1904 to follow whatever audio standard is pointed by the
1908 desc->setmode(chip, V4L2_TUNER_MODE_MONO);
1909 chip->prevmode = -1; /* reset previous mode */
1910 mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000));
1915 static int tvaudio_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
1917 struct i2c_client *client = v4l2_get_subdevdata(sd);
1919 return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TVAUDIO, 0);
1922 /* ----------------------------------------------------------------------- */
1924 static const struct v4l2_subdev_core_ops tvaudio_core_ops = {
1925 .g_chip_ident = tvaudio_g_chip_ident,
1926 .queryctrl = tvaudio_queryctrl,
1927 .g_ctrl = tvaudio_g_ctrl,
1928 .s_ctrl = tvaudio_s_ctrl,
1929 .s_std = tvaudio_s_std,
1932 static const struct v4l2_subdev_tuner_ops tvaudio_tuner_ops = {
1933 .s_radio = tvaudio_s_radio,
1934 .s_frequency = tvaudio_s_frequency,
1935 .s_tuner = tvaudio_s_tuner,
1936 .g_tuner = tvaudio_g_tuner,
1939 static const struct v4l2_subdev_audio_ops tvaudio_audio_ops = {
1940 .s_routing = tvaudio_s_routing,
1943 static const struct v4l2_subdev_ops tvaudio_ops = {
1944 .core = &tvaudio_core_ops,
1945 .tuner = &tvaudio_tuner_ops,
1946 .audio = &tvaudio_audio_ops,
1949 /* ----------------------------------------------------------------------- */
1952 /* i2c registration */
1954 static int tvaudio_probe(struct i2c_client *client, const struct i2c_device_id *id)
1956 struct CHIPSTATE *chip;
1957 struct CHIPDESC *desc;
1958 struct v4l2_subdev *sd;
1961 printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux driver\n");
1962 printk(KERN_INFO "tvaudio: known chips: ");
1963 for (desc = chiplist; desc->name != NULL; desc++)
1964 printk("%s%s", (desc == chiplist) ? "" : ", ", desc->name);
1968 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1972 v4l2_i2c_subdev_init(sd, client, &tvaudio_ops);
1974 /* find description for the chip */
1975 v4l2_dbg(1, debug, sd, "chip found @ 0x%x\n", client->addr<<1);
1976 for (desc = chiplist; desc->name != NULL; desc++) {
1977 if (0 == *(desc->insmodopt))
1979 if (client->addr < desc->addr_lo ||
1980 client->addr > desc->addr_hi)
1982 if (desc->checkit && !desc->checkit(chip))
1986 if (desc->name == NULL) {
1987 v4l2_dbg(1, debug, sd, "no matching chip description found\n");
1991 v4l2_info(sd, "%s found @ 0x%x (%s)\n", desc->name, client->addr<<1, client->adapter->name);
1993 v4l2_dbg(1, debug, sd, "matches:%s%s%s.\n",
1994 (desc->flags & CHIP_HAS_VOLUME) ? " volume" : "",
1995 (desc->flags & CHIP_HAS_BASSTREBLE) ? " bass/treble" : "",
1996 (desc->flags & CHIP_HAS_INPUTSEL) ? " audiomux" : "");
1999 /* fill required data structures */
2001 strlcpy(client->name, desc->name, I2C_NAME_SIZE);
2003 chip->shadow.count = desc->registers+1;
2004 chip->prevmode = -1;
2005 chip->audmode = V4L2_TUNER_MODE_LANG1;
2007 /* initialization */
2008 if (desc->initialize != NULL)
2009 desc->initialize(chip);
2011 chip_cmd(chip, "init", &desc->init);
2013 if (desc->flags & CHIP_HAS_VOLUME) {
2014 if (!desc->volfunc) {
2015 /* This shouldn't be happen. Warn user, but keep working
2016 without volume controls
2018 v4l2_info(sd, "volume callback undefined!\n");
2019 desc->flags &= ~CHIP_HAS_VOLUME;
2021 chip->left = desc->leftinit ? desc->leftinit : 65535;
2022 chip->right = desc->rightinit ? desc->rightinit : 65535;
2023 chip_write(chip, desc->leftreg,
2024 desc->volfunc(chip->left));
2025 chip_write(chip, desc->rightreg,
2026 desc->volfunc(chip->right));
2029 if (desc->flags & CHIP_HAS_BASSTREBLE) {
2030 if (!desc->bassfunc || !desc->treblefunc) {
2031 /* This shouldn't be happen. Warn user, but keep working
2032 without bass/treble controls
2034 v4l2_info(sd, "bass/treble callbacks undefined!\n");
2035 desc->flags &= ~CHIP_HAS_BASSTREBLE;
2037 chip->treble = desc->trebleinit ?
2038 desc->trebleinit : 32768;
2039 chip->bass = desc->bassinit ?
2040 desc->bassinit : 32768;
2041 chip_write(chip, desc->bassreg,
2042 desc->bassfunc(chip->bass));
2043 chip_write(chip, desc->treblereg,
2044 desc->treblefunc(chip->treble));
2048 chip->thread = NULL;
2049 init_timer(&chip->wt);
2050 if (desc->flags & CHIP_NEED_CHECKMODE) {
2051 if (!desc->getmode || !desc->setmode) {
2052 /* This shouldn't be happen. Warn user, but keep working
2055 v4l2_info(sd, "set/get mode callbacks undefined!\n");
2058 /* start async thread */
2059 chip->wt.function = chip_thread_wake;
2060 chip->wt.data = (unsigned long)chip;
2061 chip->thread = kthread_run(chip_thread, chip, client->name);
2062 if (IS_ERR(chip->thread)) {
2063 v4l2_warn(sd, "failed to create kthread\n");
2064 chip->thread = NULL;
2070 static int tvaudio_remove(struct i2c_client *client)
2072 struct v4l2_subdev *sd = i2c_get_clientdata(client);
2073 struct CHIPSTATE *chip = to_state(sd);
2075 del_timer_sync(&chip->wt);
2077 /* shutdown async thread */
2078 kthread_stop(chip->thread);
2079 chip->thread = NULL;
2082 v4l2_device_unregister_subdev(sd);
2087 /* This driver supports many devices and the idea is to let the driver
2088 detect which device is present. So rather than listing all supported
2089 devices here, we pretend to support a single, fake device type. */
2090 static const struct i2c_device_id tvaudio_id[] = {
2094 MODULE_DEVICE_TABLE(i2c, tvaudio_id);
2096 static struct i2c_driver tvaudio_driver = {
2098 .owner = THIS_MODULE,
2101 .probe = tvaudio_probe,
2102 .remove = tvaudio_remove,
2103 .id_table = tvaudio_id,
2106 module_i2c_driver(tvaudio_driver);