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PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / media / i2c / tvaudio.c
blobd76c53a8f027b851e640af633b54dd04474536e0
1 /*
2 * Driver for simple i2c audio chips.
3 *
4 * Copyright (c) 2000 Gerd Knorr
5 * based on code by:
6 * Eric Sandeen (eric_sandeen@bigfoot.com)
7 * Steve VanDeBogart (vandebo@uclink.berkeley.edu)
8 * Greg Alexander (galexand@acm.org)
9 *
10 * For the TDA9875 part:
11 * Copyright (c) 2000 Guillaume Delvit based on Gerd Knorr source
12 * and Eric Sandeen
13 *
14 * Copyright(c) 2005-2008 Mauro Carvalho Chehab
15 * - Some cleanups, code fixes, etc
16 * - Convert it to V4L2 API
17 *
18 * This code is placed under the terms of the GNU General Public License
19 *
20 * OPTIONS:
21 * debug - set to 1 if you'd like to see debug messages
22 *
23 */
24
25 #include <linux/module.h>
26 #include <linux/kernel.h>
27 #include <linux/sched.h>
28 #include <linux/string.h>
29 #include <linux/timer.h>
30 #include <linux/delay.h>
31 #include <linux/errno.h>
32 #include <linux/slab.h>
33 #include <linux/videodev2.h>
34 #include <linux/i2c.h>
35 #include <linux/init.h>
36 #include <linux/kthread.h>
37 #include <linux/freezer.h>
38
39 #include <media/tvaudio.h>
40 #include <media/v4l2-device.h>
41 #include <media/v4l2-ctrls.h>
42
43 #include <media/i2c-addr.h>
44
45 /* ---------------------------------------------------------------------- */
46 /* insmod args */
47
48 static int debug; /* insmod parameter */
49 module_param(debug, int, 0644);
50
51 MODULE_DESCRIPTION("device driver for various i2c TV sound decoder / audiomux chips");
52 MODULE_AUTHOR("Eric Sandeen, Steve VanDeBogart, Greg Alexander, Gerd Knorr");
53 MODULE_LICENSE("GPL");
54
55 #define UNSET (-1U)
56
57 /* ---------------------------------------------------------------------- */
58 /* our structs */
59
60 #define MAXREGS 256
61
62 struct CHIPSTATE;
63 typedef int (*getvalue)(int);
64 typedef int (*checkit)(struct CHIPSTATE*);
65 typedef int (*initialize)(struct CHIPSTATE*);
66 typedef int (*getrxsubchans)(struct CHIPSTATE *);
67 typedef void (*setaudmode)(struct CHIPSTATE*, int mode);
68
69 /* i2c command */
70 typedef struct AUDIOCMD {
71 int count; /* # of bytes to send */
72 unsigned char bytes[MAXREGS+1]; /* addr, data, data, ... */
73 } audiocmd;
74
75 /* chip description */
76 struct CHIPDESC {
77 char *name; /* chip name */
78 int addr_lo, addr_hi; /* i2c address range */
79 int registers; /* # of registers */
80
81 int *insmodopt;
82 checkit checkit;
83 initialize initialize;
84 int flags;
85 #define CHIP_HAS_VOLUME 1
86 #define CHIP_HAS_BASSTREBLE 2
87 #define CHIP_HAS_INPUTSEL 4
88 #define CHIP_NEED_CHECKMODE 8
89
90 /* various i2c command sequences */
91 audiocmd init;
92
93 /* which register has which value */
94 int leftreg, rightreg, treblereg, bassreg;
95
96 /* initialize with (defaults to 65535/32768/32768 */
97 int volinit, trebleinit, bassinit;
98
99 /* functions to convert the values (v4l -> chip) */
100 getvalue volfunc, treblefunc, bassfunc;
101
102 /* get/set mode */
103 getrxsubchans getrxsubchans;
104 setaudmode setaudmode;
105
106 /* input switch register + values for v4l inputs */
107 int inputreg;
108 int inputmap[4];
109 int inputmute;
110 int inputmask;
111 };
112
113 /* current state of the chip */
114 struct CHIPSTATE {
115 struct v4l2_subdev sd;
116 struct v4l2_ctrl_handler hdl;
117 struct {
118 /* volume/balance cluster */
119 struct v4l2_ctrl *volume;
120 struct v4l2_ctrl *balance;
121 };
122
123 /* chip-specific description - should point to
124 an entry at CHIPDESC table */
125 struct CHIPDESC *desc;
126
127 /* shadow register set */
128 audiocmd shadow;
129
130 /* current settings */
131 u16 muted;
132 int prevmode;
133 int radio;
134 int input;
135
136 /* thread */
137 struct task_struct *thread;
138 struct timer_list wt;
139 int audmode;
140 };
141
142 static inline struct CHIPSTATE *to_state(struct v4l2_subdev *sd)
143 {
144 return container_of(sd, struct CHIPSTATE, sd);
145 }
146
147 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
148 {
149 return &container_of(ctrl->handler, struct CHIPSTATE, hdl)->sd;
150 }
151
152
153 /* ---------------------------------------------------------------------- */
154 /* i2c I/O functions */
155
156 static int chip_write(struct CHIPSTATE *chip, int subaddr, int val)
157 {
158 struct v4l2_subdev *sd = &chip->sd;
159 struct i2c_client *c = v4l2_get_subdevdata(sd);
160 unsigned char buffer[2];
161
162 if (subaddr < 0) {
163 v4l2_dbg(1, debug, sd, "chip_write: 0x%x\n", val);
164 chip->shadow.bytes[1] = val;
165 buffer[0] = val;
166 if (1 != i2c_master_send(c, buffer, 1)) {
167 v4l2_warn(sd, "I/O error (write 0x%x)\n", val);
168 return -1;
169 }
170 } else {
171 if (subaddr + 1 >= ARRAY_SIZE(chip->shadow.bytes)) {
172 v4l2_info(sd,
173 "Tried to access a non-existent register: %d\n",
174 subaddr);
175 return -EINVAL;
176 }
177
178 v4l2_dbg(1, debug, sd, "chip_write: reg%d=0x%x\n",
179 subaddr, val);
180 chip->shadow.bytes[subaddr+1] = val;
181 buffer[0] = subaddr;
182 buffer[1] = val;
183 if (2 != i2c_master_send(c, buffer, 2)) {
184 v4l2_warn(sd, "I/O error (write reg%d=0x%x)\n",
185 subaddr, val);
186 return -1;
187 }
188 }
189 return 0;
190 }
191
192 static int chip_write_masked(struct CHIPSTATE *chip,
193 int subaddr, int val, int mask)
194 {
195 struct v4l2_subdev *sd = &chip->sd;
196
197 if (mask != 0) {
198 if (subaddr < 0) {
199 val = (chip->shadow.bytes[1] & ~mask) | (val & mask);
200 } else {
201 if (subaddr + 1 >= ARRAY_SIZE(chip->shadow.bytes)) {
202 v4l2_info(sd,
203 "Tried to access a non-existent register: %d\n",
204 subaddr);
205 return -EINVAL;
206 }
207
208 val = (chip->shadow.bytes[subaddr+1] & ~mask) | (val & mask);
209 }
210 }
211 return chip_write(chip, subaddr, val);
212 }
213
214 static int chip_read(struct CHIPSTATE *chip)
215 {
216 struct v4l2_subdev *sd = &chip->sd;
217 struct i2c_client *c = v4l2_get_subdevdata(sd);
218 unsigned char buffer;
219
220 if (1 != i2c_master_recv(c, &buffer, 1)) {
221 v4l2_warn(sd, "I/O error (read)\n");
222 return -1;
223 }
224 v4l2_dbg(1, debug, sd, "chip_read: 0x%x\n", buffer);
225 return buffer;
226 }
227
228 static int chip_read2(struct CHIPSTATE *chip, int subaddr)
229 {
230 struct v4l2_subdev *sd = &chip->sd;
231 struct i2c_client *c = v4l2_get_subdevdata(sd);
232 unsigned char write[1];
233 unsigned char read[1];
234 struct i2c_msg msgs[2] = {
235 {
236 .addr = c->addr,
237 .len = 1,
238 .buf = write
239 },
240 {
241 .addr = c->addr,
242 .flags = I2C_M_RD,
243 .len = 1,
244 .buf = read
245 }
246 };
247
248 write[0] = subaddr;
249
250 if (2 != i2c_transfer(c->adapter, msgs, 2)) {
251 v4l2_warn(sd, "I/O error (read2)\n");
252 return -1;
253 }
254 v4l2_dbg(1, debug, sd, "chip_read2: reg%d=0x%x\n",
255 subaddr, read[0]);
256 return read[0];
257 }
258
259 static int chip_cmd(struct CHIPSTATE *chip, char *name, audiocmd *cmd)
260 {
261 struct v4l2_subdev *sd = &chip->sd;
262 struct i2c_client *c = v4l2_get_subdevdata(sd);
263 int i;
264
265 if (0 == cmd->count)
266 return 0;
267
268 if (cmd->count + cmd->bytes[0] - 1 >= ARRAY_SIZE(chip->shadow.bytes)) {
269 v4l2_info(sd,
270 "Tried to access a non-existent register range: %d to %d\n",
271 cmd->bytes[0] + 1, cmd->bytes[0] + cmd->count - 1);
272 return -EINVAL;
273 }
274
275 /* FIXME: it seems that the shadow bytes are wrong bellow !*/
276
277 /* update our shadow register set; print bytes if (debug > 0) */
278 v4l2_dbg(1, debug, sd, "chip_cmd(%s): reg=%d, data:",
279 name, cmd->bytes[0]);
280 for (i = 1; i < cmd->count; i++) {
281 if (debug)
282 printk(KERN_CONT " 0x%x", cmd->bytes[i]);
283 chip->shadow.bytes[i+cmd->bytes[0]] = cmd->bytes[i];
284 }
285 if (debug)
286 printk(KERN_CONT "\n");
287
288 /* send data to the chip */
289 if (cmd->count != i2c_master_send(c, cmd->bytes, cmd->count)) {
290 v4l2_warn(sd, "I/O error (%s)\n", name);
291 return -1;
292 }
293 return 0;
294 }
295
296 /* ---------------------------------------------------------------------- */
297 /* kernel thread for doing i2c stuff asyncronly
298 * right now it is used only to check the audio mode (mono/stereo/whatever)
299 * some time after switching to another TV channel, then turn on stereo
300 * if available, ...
301 */
302
303 static void chip_thread_wake(unsigned long data)
304 {
305 struct CHIPSTATE *chip = (struct CHIPSTATE*)data;
306 wake_up_process(chip->thread);
307 }
308
309 static int chip_thread(void *data)
310 {
311 struct CHIPSTATE *chip = data;
312 struct CHIPDESC *desc = chip->desc;
313 struct v4l2_subdev *sd = &chip->sd;
314 int mode, selected;
315
316 v4l2_dbg(1, debug, sd, "thread started\n");
317 set_freezable();
318 for (;;) {
319 set_current_state(TASK_INTERRUPTIBLE);
320 if (!kthread_should_stop())
321 schedule();
322 set_current_state(TASK_RUNNING);
323 try_to_freeze();
324 if (kthread_should_stop())
325 break;
326 v4l2_dbg(1, debug, sd, "thread wakeup\n");
327
328 /* don't do anything for radio */
329 if (chip->radio)
330 continue;
331
332 /* have a look what's going on */
333 mode = desc->getrxsubchans(chip);
334 if (mode == chip->prevmode)
335 continue;
336
337 /* chip detected a new audio mode - set it */
338 v4l2_dbg(1, debug, sd, "thread checkmode\n");
339
340 chip->prevmode = mode;
341
342 selected = V4L2_TUNER_MODE_MONO;
343 switch (chip->audmode) {
344 case V4L2_TUNER_MODE_MONO:
345 if (mode & V4L2_TUNER_SUB_LANG1)
346 selected = V4L2_TUNER_MODE_LANG1;
347 break;
348 case V4L2_TUNER_MODE_STEREO:
349 case V4L2_TUNER_MODE_LANG1:
350 if (mode & V4L2_TUNER_SUB_LANG1)
351 selected = V4L2_TUNER_MODE_LANG1;
352 else if (mode & V4L2_TUNER_SUB_STEREO)
353 selected = V4L2_TUNER_MODE_STEREO;
354 break;
355 case V4L2_TUNER_MODE_LANG2:
356 if (mode & V4L2_TUNER_SUB_LANG2)
357 selected = V4L2_TUNER_MODE_LANG2;
358 else if (mode & V4L2_TUNER_SUB_STEREO)
359 selected = V4L2_TUNER_MODE_STEREO;
360 break;
361 case V4L2_TUNER_MODE_LANG1_LANG2:
362 if (mode & V4L2_TUNER_SUB_LANG2)
363 selected = V4L2_TUNER_MODE_LANG1_LANG2;
364 else if (mode & V4L2_TUNER_SUB_STEREO)
365 selected = V4L2_TUNER_MODE_STEREO;
366 }
367 desc->setaudmode(chip, selected);
368
369 /* schedule next check */
370 mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000));
371 }
372
373 v4l2_dbg(1, debug, sd, "thread exiting\n");
374 return 0;
375 }
376
377 /* ---------------------------------------------------------------------- */
378 /* audio chip descriptions - defines+functions for tda9840 */
379
380 #define TDA9840_SW 0x00
381 #define TDA9840_LVADJ 0x02
382 #define TDA9840_STADJ 0x03
383 #define TDA9840_TEST 0x04
384
385 #define TDA9840_MONO 0x10
386 #define TDA9840_STEREO 0x2a
387 #define TDA9840_DUALA 0x12
388 #define TDA9840_DUALB 0x1e
389 #define TDA9840_DUALAB 0x1a
390 #define TDA9840_DUALBA 0x16
391 #define TDA9840_EXTERNAL 0x7a
392
393 #define TDA9840_DS_DUAL 0x20 /* Dual sound identified */
394 #define TDA9840_ST_STEREO 0x40 /* Stereo sound identified */
395 #define TDA9840_PONRES 0x80 /* Power-on reset detected if = 1 */
396
397 #define TDA9840_TEST_INT1SN 0x1 /* Integration time 0.5s when set */
398 #define TDA9840_TEST_INTFU 0x02 /* Disables integrator function */
399
400 static int tda9840_getrxsubchans(struct CHIPSTATE *chip)
401 {
402 struct v4l2_subdev *sd = &chip->sd;
403 int val, mode;
404
405 val = chip_read(chip);
406 mode = V4L2_TUNER_SUB_MONO;
407 if (val & TDA9840_DS_DUAL)
408 mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
409 if (val & TDA9840_ST_STEREO)
410 mode = V4L2_TUNER_SUB_STEREO;
411
412 v4l2_dbg(1, debug, sd,
413 "tda9840_getrxsubchans(): raw chip read: %d, return: %d\n",
414 val, mode);
415 return mode;
416 }
417
418 static void tda9840_setaudmode(struct CHIPSTATE *chip, int mode)
419 {
420 int update = 1;
421 int t = chip->shadow.bytes[TDA9840_SW + 1] & ~0x7e;
422
423 switch (mode) {
424 case V4L2_TUNER_MODE_MONO:
425 t |= TDA9840_MONO;
426 break;
427 case V4L2_TUNER_MODE_STEREO:
428 t |= TDA9840_STEREO;
429 break;
430 case V4L2_TUNER_MODE_LANG1:
431 t |= TDA9840_DUALA;
432 break;
433 case V4L2_TUNER_MODE_LANG2:
434 t |= TDA9840_DUALB;
435 break;
436 case V4L2_TUNER_MODE_LANG1_LANG2:
437 t |= TDA9840_DUALAB;
438 break;
439 default:
440 update = 0;
441 }
442
443 if (update)
444 chip_write(chip, TDA9840_SW, t);
445 }
446
447 static int tda9840_checkit(struct CHIPSTATE *chip)
448 {
449 int rc;
450 rc = chip_read(chip);
451 /* lower 5 bits should be 0 */
452 return ((rc & 0x1f) == 0) ? 1 : 0;
453 }
454
455 /* ---------------------------------------------------------------------- */
456 /* audio chip descriptions - defines+functions for tda985x */
457
458 /* subaddresses for TDA9855 */
459 #define TDA9855_VR 0x00 /* Volume, right */
460 #define TDA9855_VL 0x01 /* Volume, left */
461 #define TDA9855_BA 0x02 /* Bass */
462 #define TDA9855_TR 0x03 /* Treble */
463 #define TDA9855_SW 0x04 /* Subwoofer - not connected on DTV2000 */
464
465 /* subaddresses for TDA9850 */
466 #define TDA9850_C4 0x04 /* Control 1 for TDA9850 */
467
468 /* subaddesses for both chips */
469 #define TDA985x_C5 0x05 /* Control 2 for TDA9850, Control 1 for TDA9855 */
470 #define TDA985x_C6 0x06 /* Control 3 for TDA9850, Control 2 for TDA9855 */
471 #define TDA985x_C7 0x07 /* Control 4 for TDA9850, Control 3 for TDA9855 */
472 #define TDA985x_A1 0x08 /* Alignment 1 for both chips */
473 #define TDA985x_A2 0x09 /* Alignment 2 for both chips */
474 #define TDA985x_A3 0x0a /* Alignment 3 for both chips */
475
476 /* Masks for bits in TDA9855 subaddresses */
477 /* 0x00 - VR in TDA9855 */
478 /* 0x01 - VL in TDA9855 */
479 /* lower 7 bits control gain from -71dB (0x28) to 16dB (0x7f)
480 * in 1dB steps - mute is 0x27 */
481
482
483 /* 0x02 - BA in TDA9855 */
484 /* lower 5 bits control bass gain from -12dB (0x06) to 16.5dB (0x19)
485 * in .5dB steps - 0 is 0x0E */
486
487
488 /* 0x03 - TR in TDA9855 */
489 /* 4 bits << 1 control treble gain from -12dB (0x3) to 12dB (0xb)
490 * in 3dB steps - 0 is 0x7 */
491
492 /* Masks for bits in both chips' subaddresses */
493 /* 0x04 - SW in TDA9855, C4/Control 1 in TDA9850 */
494 /* Unique to TDA9855: */
495 /* 4 bits << 2 control subwoofer/surround gain from -14db (0x1) to 14db (0xf)
496 * in 3dB steps - mute is 0x0 */
497
498 /* Unique to TDA9850: */
499 /* lower 4 bits control stereo noise threshold, over which stereo turns off
500 * set to values of 0x00 through 0x0f for Ster1 through Ster16 */
501
502
503 /* 0x05 - C5 - Control 1 in TDA9855 , Control 2 in TDA9850*/
504 /* Unique to TDA9855: */
505 #define TDA9855_MUTE 1<<7 /* GMU, Mute at outputs */
506 #define TDA9855_AVL 1<<6 /* AVL, Automatic Volume Level */
507 #define TDA9855_LOUD 1<<5 /* Loudness, 1==off */
508 #define TDA9855_SUR 1<<3 /* Surround / Subwoofer 1==.5(L-R) 0==.5(L+R) */
509 /* Bits 0 to 3 select various combinations
510 * of line in and line out, only the
511 * interesting ones are defined */
512 #define TDA9855_EXT 1<<2 /* Selects inputs LIR and LIL. Pins 41 & 12 */
513 #define TDA9855_INT 0 /* Selects inputs LOR and LOL. (internal) */
514
515 /* Unique to TDA9850: */
516 /* lower 4 bits contol SAP noise threshold, over which SAP turns off
517 * set to values of 0x00 through 0x0f for SAP1 through SAP16 */
518
519
520 /* 0x06 - C6 - Control 2 in TDA9855, Control 3 in TDA9850 */
521 /* Common to TDA9855 and TDA9850: */
522 #define TDA985x_SAP 3<<6 /* Selects SAP output, mute if not received */
523 #define TDA985x_MONOSAP 2<<6 /* Selects Mono on left, SAP on right */
524 #define TDA985x_STEREO 1<<6 /* Selects Stereo ouput, mono if not received */
525 #define TDA985x_MONO 0 /* Forces Mono output */
526 #define TDA985x_LMU 1<<3 /* Mute (LOR/LOL for 9855, OUTL/OUTR for 9850) */
527
528 /* Unique to TDA9855: */
529 #define TDA9855_TZCM 1<<5 /* If set, don't mute till zero crossing */
530 #define TDA9855_VZCM 1<<4 /* If set, don't change volume till zero crossing*/
531 #define TDA9855_LINEAR 0 /* Linear Stereo */
532 #define TDA9855_PSEUDO 1 /* Pseudo Stereo */
533 #define TDA9855_SPAT_30 2 /* Spatial Stereo, 30% anti-phase crosstalk */
534 #define TDA9855_SPAT_50 3 /* Spatial Stereo, 52% anti-phase crosstalk */
535 #define TDA9855_E_MONO 7 /* Forced mono - mono select elseware, so useless*/
536
537 /* 0x07 - C7 - Control 3 in TDA9855, Control 4 in TDA9850 */
538 /* Common to both TDA9855 and TDA9850: */
539 /* lower 4 bits control input gain from -3.5dB (0x0) to 4dB (0xF)
540 * in .5dB steps - 0dB is 0x7 */
541
542 /* 0x08, 0x09 - A1 and A2 (read/write) */
543 /* Common to both TDA9855 and TDA9850: */
544 /* lower 5 bites are wideband and spectral expander alignment
545 * from 0x00 to 0x1f - nominal at 0x0f and 0x10 (read/write) */
546 #define TDA985x_STP 1<<5 /* Stereo Pilot/detect (read-only) */
547 #define TDA985x_SAPP 1<<6 /* SAP Pilot/detect (read-only) */
548 #define TDA985x_STS 1<<7 /* Stereo trigger 1= <35mV 0= <30mV (write-only)*/
549
550 /* 0x0a - A3 */
551 /* Common to both TDA9855 and TDA9850: */
552 /* lower 3 bits control timing current for alignment: -30% (0x0), -20% (0x1),
553 * -10% (0x2), nominal (0x3), +10% (0x6), +20% (0x5), +30% (0x4) */
554 #define TDA985x_ADJ 1<<7 /* Stereo adjust on/off (wideband and spectral */
555
556 static int tda9855_volume(int val) { return val/0x2e8+0x27; }
557 static int tda9855_bass(int val) { return val/0xccc+0x06; }
558 static int tda9855_treble(int val) { return (val/0x1c71+0x3)<<1; }
559
560 static int tda985x_getrxsubchans(struct CHIPSTATE *chip)
561 {
562 int mode, val;
563
564 /* Add mono mode regardless of SAP and stereo */
565 /* Allows forced mono */
566 mode = V4L2_TUNER_SUB_MONO;
567 val = chip_read(chip);
568 if (val & TDA985x_STP)
569 mode = V4L2_TUNER_SUB_STEREO;
570 if (val & TDA985x_SAPP)
571 mode |= V4L2_TUNER_SUB_SAP;
572 return mode;
573 }
574
575 static void tda985x_setaudmode(struct CHIPSTATE *chip, int mode)
576 {
577 int update = 1;
578 int c6 = chip->shadow.bytes[TDA985x_C6+1] & 0x3f;
579
580 switch (mode) {
581 case V4L2_TUNER_MODE_MONO:
582 c6 |= TDA985x_MONO;
583 break;
584 case V4L2_TUNER_MODE_STEREO:
585 case V4L2_TUNER_MODE_LANG1:
586 c6 |= TDA985x_STEREO;
587 break;
588 case V4L2_TUNER_MODE_SAP:
589 c6 |= TDA985x_SAP;
590 break;
591 case V4L2_TUNER_MODE_LANG1_LANG2:
592 c6 |= TDA985x_MONOSAP;
593 break;
594 default:
595 update = 0;
596 }
597 if (update)
598 chip_write(chip,TDA985x_C6,c6);
599 }
600
601
602 /* ---------------------------------------------------------------------- */
603 /* audio chip descriptions - defines+functions for tda9873h */
604
605 /* Subaddresses for TDA9873H */
606
607 #define TDA9873_SW 0x00 /* Switching */
608 #define TDA9873_AD 0x01 /* Adjust */
609 #define TDA9873_PT 0x02 /* Port */
610
611 /* Subaddress 0x00: Switching Data
612 * B7..B0:
613 *
614 * B1, B0: Input source selection
615 * 0, 0 internal
616 * 1, 0 external stereo
617 * 0, 1 external mono
618 */
619 #define TDA9873_INP_MASK 3
620 #define TDA9873_INTERNAL 0
621 #define TDA9873_EXT_STEREO 2
622 #define TDA9873_EXT_MONO 1
623
624 /* B3, B2: output signal select
625 * B4 : transmission mode
626 * 0, 0, 1 Mono
627 * 1, 0, 0 Stereo
628 * 1, 1, 1 Stereo (reversed channel)
629 * 0, 0, 0 Dual AB
630 * 0, 0, 1 Dual AA
631 * 0, 1, 0 Dual BB
632 * 0, 1, 1 Dual BA
633 */
634
635 #define TDA9873_TR_MASK (7 << 2)
636 #define TDA9873_TR_MONO 4
637 #define TDA9873_TR_STEREO 1 << 4
638 #define TDA9873_TR_REVERSE ((1 << 3) | (1 << 2))
639 #define TDA9873_TR_DUALA 1 << 2
640 #define TDA9873_TR_DUALB 1 << 3
641 #define TDA9873_TR_DUALAB 0
642
643 /* output level controls
644 * B5: output level switch (0 = reduced gain, 1 = normal gain)
645 * B6: mute (1 = muted)
646 * B7: auto-mute (1 = auto-mute enabled)
647 */
648
649 #define TDA9873_GAIN_NORMAL 1 << 5
650 #define TDA9873_MUTE 1 << 6
651 #define TDA9873_AUTOMUTE 1 << 7
652
653 /* Subaddress 0x01: Adjust/standard */
654
655 /* Lower 4 bits (C3..C0) control stereo adjustment on R channel (-0.6 - +0.7 dB)
656 * Recommended value is +0 dB
657 */
658
659 #define TDA9873_STEREO_ADJ 0x06 /* 0dB gain */
660
661 /* Bits C6..C4 control FM stantard
662 * C6, C5, C4
663 * 0, 0, 0 B/G (PAL FM)
664 * 0, 0, 1 M
665 * 0, 1, 0 D/K(1)
666 * 0, 1, 1 D/K(2)
667 * 1, 0, 0 D/K(3)
668 * 1, 0, 1 I
669 */
670 #define TDA9873_BG 0
671 #define TDA9873_M 1
672 #define TDA9873_DK1 2
673 #define TDA9873_DK2 3
674 #define TDA9873_DK3 4
675 #define TDA9873_I 5
676
677 /* C7 controls identification response time (1=fast/0=normal)
678 */
679 #define TDA9873_IDR_NORM 0
680 #define TDA9873_IDR_FAST 1 << 7
681
682
683 /* Subaddress 0x02: Port data */
684
685 /* E1, E0 free programmable ports P1/P2
686 0, 0 both ports low
687 0, 1 P1 high
688 1, 0 P2 high
689 1, 1 both ports high
690 */
691
692 #define TDA9873_PORTS 3
693
694 /* E2: test port */
695 #define TDA9873_TST_PORT 1 << 2
696
697 /* E5..E3 control mono output channel (together with transmission mode bit B4)
698 *
699 * E5 E4 E3 B4 OUTM
700 * 0 0 0 0 mono
701 * 0 0 1 0 DUAL B
702 * 0 1 0 1 mono (from stereo decoder)
703 */
704 #define TDA9873_MOUT_MONO 0
705 #define TDA9873_MOUT_FMONO 0
706 #define TDA9873_MOUT_DUALA 0
707 #define TDA9873_MOUT_DUALB 1 << 3
708 #define TDA9873_MOUT_ST 1 << 4
709 #define TDA9873_MOUT_EXTM ((1 << 4) | (1 << 3))
710 #define TDA9873_MOUT_EXTL 1 << 5
711 #define TDA9873_MOUT_EXTR ((1 << 5) | (1 << 3))
712 #define TDA9873_MOUT_EXTLR ((1 << 5) | (1 << 4))
713 #define TDA9873_MOUT_MUTE ((1 << 5) | (1 << 4) | (1 << 3))
714
715 /* Status bits: (chip read) */
716 #define TDA9873_PONR 0 /* Power-on reset detected if = 1 */
717 #define TDA9873_STEREO 2 /* Stereo sound is identified */
718 #define TDA9873_DUAL 4 /* Dual sound is identified */
719
720 static int tda9873_getrxsubchans(struct CHIPSTATE *chip)
721 {
722 struct v4l2_subdev *sd = &chip->sd;
723 int val,mode;
724
725 val = chip_read(chip);
726 mode = V4L2_TUNER_SUB_MONO;
727 if (val & TDA9873_STEREO)
728 mode = V4L2_TUNER_SUB_STEREO;
729 if (val & TDA9873_DUAL)
730 mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
731 v4l2_dbg(1, debug, sd,
732 "tda9873_getrxsubchans(): raw chip read: %d, return: %d\n",
733 val, mode);
734 return mode;
735 }
736
737 static void tda9873_setaudmode(struct CHIPSTATE *chip, int mode)
738 {
739 struct v4l2_subdev *sd = &chip->sd;
740 int sw_data = chip->shadow.bytes[TDA9873_SW+1] & ~ TDA9873_TR_MASK;
741 /* int adj_data = chip->shadow.bytes[TDA9873_AD+1] ; */
742
743 if ((sw_data & TDA9873_INP_MASK) != TDA9873_INTERNAL) {
744 v4l2_dbg(1, debug, sd,
745 "tda9873_setaudmode(): external input\n");
746 return;
747 }
748
749 v4l2_dbg(1, debug, sd,
750 "tda9873_setaudmode(): chip->shadow.bytes[%d] = %d\n",
751 TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]);
752 v4l2_dbg(1, debug, sd, "tda9873_setaudmode(): sw_data = %d\n",
753 sw_data);
754
755 switch (mode) {
756 case V4L2_TUNER_MODE_MONO:
757 sw_data |= TDA9873_TR_MONO;
758 break;
759 case V4L2_TUNER_MODE_STEREO:
760 sw_data |= TDA9873_TR_STEREO;
761 break;
762 case V4L2_TUNER_MODE_LANG1:
763 sw_data |= TDA9873_TR_DUALA;
764 break;
765 case V4L2_TUNER_MODE_LANG2:
766 sw_data |= TDA9873_TR_DUALB;
767 break;
768 case V4L2_TUNER_MODE_LANG1_LANG2:
769 sw_data |= TDA9873_TR_DUALAB;
770 break;
771 default:
772 return;
773 }
774
775 chip_write(chip, TDA9873_SW, sw_data);
776 v4l2_dbg(1, debug, sd,
777 "tda9873_setaudmode(): req. mode %d; chip_write: %d\n",
778 mode, sw_data);
779 }
780
781 static int tda9873_checkit(struct CHIPSTATE *chip)
782 {
783 int rc;
784
785 if (-1 == (rc = chip_read2(chip,254)))
786 return 0;
787 return (rc & ~0x1f) == 0x80;
788 }
789
790
791 /* ---------------------------------------------------------------------- */
792 /* audio chip description - defines+functions for tda9874h and tda9874a */
793 /* Dariusz Kowalewski <darekk@automex.pl> */
794
795 /* Subaddresses for TDA9874H and TDA9874A (slave rx) */
796 #define TDA9874A_AGCGR 0x00 /* AGC gain */
797 #define TDA9874A_GCONR 0x01 /* general config */
798 #define TDA9874A_MSR 0x02 /* monitor select */
799 #define TDA9874A_C1FRA 0x03 /* carrier 1 freq. */
800 #define TDA9874A_C1FRB 0x04 /* carrier 1 freq. */
801 #define TDA9874A_C1FRC 0x05 /* carrier 1 freq. */
802 #define TDA9874A_C2FRA 0x06 /* carrier 2 freq. */
803 #define TDA9874A_C2FRB 0x07 /* carrier 2 freq. */
804 #define TDA9874A_C2FRC 0x08 /* carrier 2 freq. */
805 #define TDA9874A_DCR 0x09 /* demodulator config */
806 #define TDA9874A_FMER 0x0a /* FM de-emphasis */
807 #define TDA9874A_FMMR 0x0b /* FM dematrix */
808 #define TDA9874A_C1OLAR 0x0c /* ch.1 output level adj. */
809 #define TDA9874A_C2OLAR 0x0d /* ch.2 output level adj. */
810 #define TDA9874A_NCONR 0x0e /* NICAM config */
811 #define TDA9874A_NOLAR 0x0f /* NICAM output level adj. */
812 #define TDA9874A_NLELR 0x10 /* NICAM lower error limit */
813 #define TDA9874A_NUELR 0x11 /* NICAM upper error limit */
814 #define TDA9874A_AMCONR 0x12 /* audio mute control */
815 #define TDA9874A_SDACOSR 0x13 /* stereo DAC output select */
816 #define TDA9874A_AOSR 0x14 /* analog output select */
817 #define TDA9874A_DAICONR 0x15 /* digital audio interface config */
818 #define TDA9874A_I2SOSR 0x16 /* I2S-bus output select */
819 #define TDA9874A_I2SOLAR 0x17 /* I2S-bus output level adj. */
820 #define TDA9874A_MDACOSR 0x18 /* mono DAC output select (tda9874a) */
821 #define TDA9874A_ESP 0xFF /* easy standard progr. (tda9874a) */
822
823 /* Subaddresses for TDA9874H and TDA9874A (slave tx) */
824 #define TDA9874A_DSR 0x00 /* device status */
825 #define TDA9874A_NSR 0x01 /* NICAM status */
826 #define TDA9874A_NECR 0x02 /* NICAM error count */
827 #define TDA9874A_DR1 0x03 /* add. data LSB */
828 #define TDA9874A_DR2 0x04 /* add. data MSB */
829 #define TDA9874A_LLRA 0x05 /* monitor level read-out LSB */
830 #define TDA9874A_LLRB 0x06 /* monitor level read-out MSB */
831 #define TDA9874A_SIFLR 0x07 /* SIF level */
832 #define TDA9874A_TR2 252 /* test reg. 2 */
833 #define TDA9874A_TR1 253 /* test reg. 1 */
834 #define TDA9874A_DIC 254 /* device id. code */
835 #define TDA9874A_SIC 255 /* software id. code */
836
837
838 static int tda9874a_mode = 1; /* 0: A2, 1: NICAM */
839 static int tda9874a_GCONR = 0xc0; /* default config. input pin: SIFSEL=0 */
840 static int tda9874a_NCONR = 0x01; /* default NICAM config.: AMSEL=0,AMUTE=1 */
841 static int tda9874a_ESP = 0x07; /* default standard: NICAM D/K */
842 static int tda9874a_dic = -1; /* device id. code */
843
844 /* insmod options for tda9874a */
845 static unsigned int tda9874a_SIF = UNSET;
846 static unsigned int tda9874a_AMSEL = UNSET;
847 static unsigned int tda9874a_STD = UNSET;
848 module_param(tda9874a_SIF, int, 0444);
849 module_param(tda9874a_AMSEL, int, 0444);
850 module_param(tda9874a_STD, int, 0444);
851
852 /*
853 * initialization table for tda9874 decoder:
854 * - carrier 1 freq. registers (3 bytes)
855 * - carrier 2 freq. registers (3 bytes)
856 * - demudulator config register
857 * - FM de-emphasis register (slow identification mode)
858 * Note: frequency registers must be written in single i2c transfer.
859 */
860 static struct tda9874a_MODES {
861 char *name;
862 audiocmd cmd;
863 } tda9874a_modelist[9] = {
864 { "A2, B/G", /* default */
865 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x77,0xA0,0x00, 0x00,0x00 }} },
866 { "A2, M (Korea)",
867 { 9, { TDA9874A_C1FRA, 0x5D,0xC0,0x00, 0x62,0x6A,0xAA, 0x20,0x22 }} },
868 { "A2, D/K (1)",
869 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x82,0x60,0x00, 0x00,0x00 }} },
870 { "A2, D/K (2)",
871 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x8C,0x75,0x55, 0x00,0x00 }} },
872 { "A2, D/K (3)",
873 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x77,0xA0,0x00, 0x00,0x00 }} },
874 { "NICAM, I",
875 { 9, { TDA9874A_C1FRA, 0x7D,0x00,0x00, 0x88,0x8A,0xAA, 0x08,0x33 }} },
876 { "NICAM, B/G",
877 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x79,0xEA,0xAA, 0x08,0x33 }} },
878 { "NICAM, D/K",
879 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x08,0x33 }} },
880 { "NICAM, L",
881 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x09,0x33 }} }
882 };
883
884 static int tda9874a_setup(struct CHIPSTATE *chip)
885 {
886 struct v4l2_subdev *sd = &chip->sd;
887
888 chip_write(chip, TDA9874A_AGCGR, 0x00); /* 0 dB */
889 chip_write(chip, TDA9874A_GCONR, tda9874a_GCONR);
890 chip_write(chip, TDA9874A_MSR, (tda9874a_mode) ? 0x03:0x02);
891 if(tda9874a_dic == 0x11) {
892 chip_write(chip, TDA9874A_FMMR, 0x80);
893 } else { /* dic == 0x07 */
894 chip_cmd(chip,"tda9874_modelist",&tda9874a_modelist[tda9874a_STD].cmd);
895 chip_write(chip, TDA9874A_FMMR, 0x00);
896 }
897 chip_write(chip, TDA9874A_C1OLAR, 0x00); /* 0 dB */
898 chip_write(chip, TDA9874A_C2OLAR, 0x00); /* 0 dB */
899 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
900 chip_write(chip, TDA9874A_NOLAR, 0x00); /* 0 dB */
901 /* Note: If signal quality is poor you may want to change NICAM */
902 /* error limit registers (NLELR and NUELR) to some greater values. */
903 /* Then the sound would remain stereo, but won't be so clear. */
904 chip_write(chip, TDA9874A_NLELR, 0x14); /* default */
905 chip_write(chip, TDA9874A_NUELR, 0x50); /* default */
906
907 if(tda9874a_dic == 0x11) {
908 chip_write(chip, TDA9874A_AMCONR, 0xf9);
909 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
910 chip_write(chip, TDA9874A_AOSR, 0x80);
911 chip_write(chip, TDA9874A_MDACOSR, (tda9874a_mode) ? 0x82:0x80);
912 chip_write(chip, TDA9874A_ESP, tda9874a_ESP);
913 } else { /* dic == 0x07 */
914 chip_write(chip, TDA9874A_AMCONR, 0xfb);
915 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
916 chip_write(chip, TDA9874A_AOSR, 0x00); /* or 0x10 */
917 }
918 v4l2_dbg(1, debug, sd, "tda9874a_setup(): %s [0x%02X].\n",
919 tda9874a_modelist[tda9874a_STD].name,tda9874a_STD);
920 return 1;
921 }
922
923 static int tda9874a_getrxsubchans(struct CHIPSTATE *chip)
924 {
925 struct v4l2_subdev *sd = &chip->sd;
926 int dsr,nsr,mode;
927 int necr; /* just for debugging */
928
929 mode = V4L2_TUNER_SUB_MONO;
930
931 if(-1 == (dsr = chip_read2(chip,TDA9874A_DSR)))
932 return mode;
933 if(-1 == (nsr = chip_read2(chip,TDA9874A_NSR)))
934 return mode;
935 if(-1 == (necr = chip_read2(chip,TDA9874A_NECR)))
936 return mode;
937
938 /* need to store dsr/nsr somewhere */
939 chip->shadow.bytes[MAXREGS-2] = dsr;
940 chip->shadow.bytes[MAXREGS-1] = nsr;
941
942 if(tda9874a_mode) {
943 /* Note: DSR.RSSF and DSR.AMSTAT bits are also checked.
944 * If NICAM auto-muting is enabled, DSR.AMSTAT=1 indicates
945 * that sound has (temporarily) switched from NICAM to
946 * mono FM (or AM) on 1st sound carrier due to high NICAM bit
947 * error count. So in fact there is no stereo in this case :-(
948 * But changing the mode to V4L2_TUNER_MODE_MONO would switch
949 * external 4052 multiplexer in audio_hook().
950 */
951 if(nsr & 0x02) /* NSR.S/MB=1 */
952 mode = V4L2_TUNER_SUB_STEREO;
953 if(nsr & 0x01) /* NSR.D/SB=1 */
954 mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
955 } else {
956 if(dsr & 0x02) /* DSR.IDSTE=1 */
957 mode = V4L2_TUNER_SUB_STEREO;
958 if(dsr & 0x04) /* DSR.IDDUA=1 */
959 mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
960 }
961
962 v4l2_dbg(1, debug, sd,
963 "tda9874a_getrxsubchans(): DSR=0x%X, NSR=0x%X, NECR=0x%X, return: %d.\n",
964 dsr, nsr, necr, mode);
965 return mode;
966 }
967
968 static void tda9874a_setaudmode(struct CHIPSTATE *chip, int mode)
969 {
970 struct v4l2_subdev *sd = &chip->sd;
971
972 /* Disable/enable NICAM auto-muting (based on DSR.RSSF status bit). */
973 /* If auto-muting is disabled, we can hear a signal of degrading quality. */
974 if (tda9874a_mode) {
975 if(chip->shadow.bytes[MAXREGS-2] & 0x20) /* DSR.RSSF=1 */
976 tda9874a_NCONR &= 0xfe; /* enable */
977 else
978 tda9874a_NCONR |= 0x01; /* disable */
979 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
980 }
981
982 /* Note: TDA9874A supports automatic FM dematrixing (FMMR register)
983 * and has auto-select function for audio output (AOSR register).
984 * Old TDA9874H doesn't support these features.
985 * TDA9874A also has additional mono output pin (OUTM), which
986 * on same (all?) tv-cards is not used, anyway (as well as MONOIN).
987 */
988 if(tda9874a_dic == 0x11) {
989 int aosr = 0x80;
990 int mdacosr = (tda9874a_mode) ? 0x82:0x80;
991
992 switch(mode) {
993 case V4L2_TUNER_MODE_MONO:
994 case V4L2_TUNER_MODE_STEREO:
995 break;
996 case V4L2_TUNER_MODE_LANG1:
997 aosr = 0x80; /* auto-select, dual A/A */
998 mdacosr = (tda9874a_mode) ? 0x82:0x80;
999 break;
1000 case V4L2_TUNER_MODE_LANG2:
1001 aosr = 0xa0; /* auto-select, dual B/B */
1002 mdacosr = (tda9874a_mode) ? 0x83:0x81;
1003 break;
1004 case V4L2_TUNER_MODE_LANG1_LANG2:
1005 aosr = 0x00; /* always route L to L and R to R */
1006 mdacosr = (tda9874a_mode) ? 0x82:0x80;
1007 break;
1008 default:
1009 return;
1010 }
1011 chip_write(chip, TDA9874A_AOSR, aosr);
1012 chip_write(chip, TDA9874A_MDACOSR, mdacosr);
1013
1014 v4l2_dbg(1, debug, sd,
1015 "tda9874a_setaudmode(): req. mode %d; AOSR=0x%X, MDACOSR=0x%X.\n",
1016 mode, aosr, mdacosr);
1017
1018 } else { /* dic == 0x07 */
1019 int fmmr,aosr;
1020
1021 switch(mode) {
1022 case V4L2_TUNER_MODE_MONO:
1023 fmmr = 0x00; /* mono */
1024 aosr = 0x10; /* A/A */
1025 break;
1026 case V4L2_TUNER_MODE_STEREO:
1027 if(tda9874a_mode) {
1028 fmmr = 0x00;
1029 aosr = 0x00; /* handled by NICAM auto-mute */
1030 } else {
1031 fmmr = (tda9874a_ESP == 1) ? 0x05 : 0x04; /* stereo */
1032 aosr = 0x00;
1033 }
1034 break;
1035 case V4L2_TUNER_MODE_LANG1:
1036 fmmr = 0x02; /* dual */
1037 aosr = 0x10; /* dual A/A */
1038 break;
1039 case V4L2_TUNER_MODE_LANG2:
1040 fmmr = 0x02; /* dual */
1041 aosr = 0x20; /* dual B/B */
1042 break;
1043 case V4L2_TUNER_MODE_LANG1_LANG2:
1044 fmmr = 0x02; /* dual */
1045 aosr = 0x00; /* dual A/B */
1046 break;
1047 default:
1048 return;
1049 }
1050 chip_write(chip, TDA9874A_FMMR, fmmr);
1051 chip_write(chip, TDA9874A_AOSR, aosr);
1052
1053 v4l2_dbg(1, debug, sd,
1054 "tda9874a_setaudmode(): req. mode %d; FMMR=0x%X, AOSR=0x%X.\n",
1055 mode, fmmr, aosr);
1056 }
1057 }
1058
1059 static int tda9874a_checkit(struct CHIPSTATE *chip)
1060 {
1061 struct v4l2_subdev *sd = &chip->sd;
1062 int dic,sic; /* device id. and software id. codes */
1063
1064 if(-1 == (dic = chip_read2(chip,TDA9874A_DIC)))
1065 return 0;
1066 if(-1 == (sic = chip_read2(chip,TDA9874A_SIC)))
1067 return 0;
1068
1069 v4l2_dbg(1, debug, sd, "tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", dic, sic);
1070
1071 if((dic == 0x11)||(dic == 0x07)) {
1072 v4l2_info(sd, "found tda9874%s.\n", (dic == 0x11) ? "a" : "h");
1073 tda9874a_dic = dic; /* remember device id. */
1074 return 1;
1075 }
1076 return 0; /* not found */
1077 }
1078
1079 static int tda9874a_initialize(struct CHIPSTATE *chip)
1080 {
1081 if (tda9874a_SIF > 2)
1082 tda9874a_SIF = 1;
1083 if (tda9874a_STD >= ARRAY_SIZE(tda9874a_modelist))
1084 tda9874a_STD = 0;
1085 if(tda9874a_AMSEL > 1)
1086 tda9874a_AMSEL = 0;
1087
1088 if(tda9874a_SIF == 1)
1089 tda9874a_GCONR = 0xc0; /* sound IF input 1 */
1090 else
1091 tda9874a_GCONR = 0xc1; /* sound IF input 2 */
1092
1093 tda9874a_ESP = tda9874a_STD;
1094 tda9874a_mode = (tda9874a_STD < 5) ? 0 : 1;
1095
1096 if(tda9874a_AMSEL == 0)
1097 tda9874a_NCONR = 0x01; /* auto-mute: analog mono input */
1098 else
1099 tda9874a_NCONR = 0x05; /* auto-mute: 1st carrier FM or AM */
1100
1101 tda9874a_setup(chip);
1102 return 0;
1103 }
1104
1105 /* ---------------------------------------------------------------------- */
1106 /* audio chip description - defines+functions for tda9875 */
1107 /* The TDA9875 is made by Philips Semiconductor
1108 * http://www.semiconductors.philips.com
1109 * TDA9875: I2C-bus controlled DSP audio processor, FM demodulator
1110 *
1111 */
1112
1113 /* subaddresses for TDA9875 */
1114 #define TDA9875_MUT 0x12 /*General mute (value --> 0b11001100*/
1115 #define TDA9875_CFG 0x01 /* Config register (value --> 0b00000000 */
1116 #define TDA9875_DACOS 0x13 /*DAC i/o select (ADC) 0b0000100*/
1117 #define TDA9875_LOSR 0x16 /*Line output select regirter 0b0100 0001*/
1118
1119 #define TDA9875_CH1V 0x0c /*Channel 1 volume (mute)*/
1120 #define TDA9875_CH2V 0x0d /*Channel 2 volume (mute)*/
1121 #define TDA9875_SC1 0x14 /*SCART 1 in (mono)*/
1122 #define TDA9875_SC2 0x15 /*SCART 2 in (mono)*/
1123
1124 #define TDA9875_ADCIS 0x17 /*ADC input select (mono) 0b0110 000*/
1125 #define TDA9875_AER 0x19 /*Audio effect (AVL+Pseudo) 0b0000 0110*/
1126 #define TDA9875_MCS 0x18 /*Main channel select (DAC) 0b0000100*/
1127 #define TDA9875_MVL 0x1a /* Main volume gauche */
1128 #define TDA9875_MVR 0x1b /* Main volume droite */
1129 #define TDA9875_MBA 0x1d /* Main Basse */
1130 #define TDA9875_MTR 0x1e /* Main treble */
1131 #define TDA9875_ACS 0x1f /* Auxiliary channel select (FM) 0b0000000*/
1132 #define TDA9875_AVL 0x20 /* Auxiliary volume gauche */
1133 #define TDA9875_AVR 0x21 /* Auxiliary volume droite */
1134 #define TDA9875_ABA 0x22 /* Auxiliary Basse */
1135 #define TDA9875_ATR 0x23 /* Auxiliary treble */
1136
1137 #define TDA9875_MSR 0x02 /* Monitor select register */
1138 #define TDA9875_C1MSB 0x03 /* Carrier 1 (FM) frequency register MSB */
1139 #define TDA9875_C1MIB 0x04 /* Carrier 1 (FM) frequency register (16-8]b */
1140 #define TDA9875_C1LSB 0x05 /* Carrier 1 (FM) frequency register LSB */
1141 #define TDA9875_C2MSB 0x06 /* Carrier 2 (nicam) frequency register MSB */
1142 #define TDA9875_C2MIB 0x07 /* Carrier 2 (nicam) frequency register (16-8]b */
1143 #define TDA9875_C2LSB 0x08 /* Carrier 2 (nicam) frequency register LSB */
1144 #define TDA9875_DCR 0x09 /* Demodulateur configuration regirter*/
1145 #define TDA9875_DEEM 0x0a /* FM de-emphasis regirter*/
1146 #define TDA9875_FMAT 0x0b /* FM Matrix regirter*/
1147
1148 /* values */
1149 #define TDA9875_MUTE_ON 0xff /* general mute */
1150 #define TDA9875_MUTE_OFF 0xcc /* general no mute */
1151
1152 static int tda9875_initialize(struct CHIPSTATE *chip)
1153 {
1154 chip_write(chip, TDA9875_CFG, 0xd0); /*reg de config 0 (reset)*/
1155 chip_write(chip, TDA9875_MSR, 0x03); /* Monitor 0b00000XXX*/
1156 chip_write(chip, TDA9875_C1MSB, 0x00); /*Car1(FM) MSB XMHz*/
1157 chip_write(chip, TDA9875_C1MIB, 0x00); /*Car1(FM) MIB XMHz*/
1158 chip_write(chip, TDA9875_C1LSB, 0x00); /*Car1(FM) LSB XMHz*/
1159 chip_write(chip, TDA9875_C2MSB, 0x00); /*Car2(NICAM) MSB XMHz*/
1160 chip_write(chip, TDA9875_C2MIB, 0x00); /*Car2(NICAM) MIB XMHz*/
1161 chip_write(chip, TDA9875_C2LSB, 0x00); /*Car2(NICAM) LSB XMHz*/
1162 chip_write(chip, TDA9875_DCR, 0x00); /*Demod config 0x00*/
1163 chip_write(chip, TDA9875_DEEM, 0x44); /*DE-Emph 0b0100 0100*/
1164 chip_write(chip, TDA9875_FMAT, 0x00); /*FM Matrix reg 0x00*/
1165 chip_write(chip, TDA9875_SC1, 0x00); /* SCART 1 (SC1)*/
1166 chip_write(chip, TDA9875_SC2, 0x01); /* SCART 2 (sc2)*/
1167
1168 chip_write(chip, TDA9875_CH1V, 0x10); /* Channel volume 1 mute*/
1169 chip_write(chip, TDA9875_CH2V, 0x10); /* Channel volume 2 mute */
1170 chip_write(chip, TDA9875_DACOS, 0x02); /* sig DAC i/o(in:nicam)*/
1171 chip_write(chip, TDA9875_ADCIS, 0x6f); /* sig ADC input(in:mono)*/
1172 chip_write(chip, TDA9875_LOSR, 0x00); /* line out (in:mono)*/
1173 chip_write(chip, TDA9875_AER, 0x00); /*06 Effect (AVL+PSEUDO) */
1174 chip_write(chip, TDA9875_MCS, 0x44); /* Main ch select (DAC) */
1175 chip_write(chip, TDA9875_MVL, 0x03); /* Vol Main left 10dB */
1176 chip_write(chip, TDA9875_MVR, 0x03); /* Vol Main right 10dB*/
1177 chip_write(chip, TDA9875_MBA, 0x00); /* Main Bass Main 0dB*/
1178 chip_write(chip, TDA9875_MTR, 0x00); /* Main Treble Main 0dB*/
1179 chip_write(chip, TDA9875_ACS, 0x44); /* Aux chan select (dac)*/
1180 chip_write(chip, TDA9875_AVL, 0x00); /* Vol Aux left 0dB*/
1181 chip_write(chip, TDA9875_AVR, 0x00); /* Vol Aux right 0dB*/
1182 chip_write(chip, TDA9875_ABA, 0x00); /* Aux Bass Main 0dB*/
1183 chip_write(chip, TDA9875_ATR, 0x00); /* Aux Aigus Main 0dB*/
1184
1185 chip_write(chip, TDA9875_MUT, 0xcc); /* General mute */
1186 return 0;
1187 }
1188
1189 static int tda9875_volume(int val) { return (unsigned char)(val / 602 - 84); }
1190 static int tda9875_bass(int val) { return (unsigned char)(max(-12, val / 2115 - 15)); }
1191 static int tda9875_treble(int val) { return (unsigned char)(val / 2622 - 12); }
1192
1193 /* ----------------------------------------------------------------------- */
1194
1195
1196 /* *********************** *
1197 * i2c interface functions *
1198 * *********************** */
1199
1200 static int tda9875_checkit(struct CHIPSTATE *chip)
1201 {
1202 struct v4l2_subdev *sd = &chip->sd;
1203 int dic, rev;
1204
1205 dic = chip_read2(chip, 254);
1206 rev = chip_read2(chip, 255);
1207
1208 if (dic == 0 || dic == 2) { /* tda9875 and tda9875A */
1209 v4l2_info(sd, "found tda9875%s rev. %d.\n",
1210 dic == 0 ? "" : "A", rev);
1211 return 1;
1212 }
1213 return 0;
1214 }
1215
1216 /* ---------------------------------------------------------------------- */
1217 /* audio chip descriptions - defines+functions for tea6420 */
1218
1219 #define TEA6300_VL 0x00 /* volume left */
1220 #define TEA6300_VR 0x01 /* volume right */
1221 #define TEA6300_BA 0x02 /* bass */
1222 #define TEA6300_TR 0x03 /* treble */
1223 #define TEA6300_FA 0x04 /* fader control */
1224 #define TEA6300_S 0x05 /* switch register */
1225 /* values for those registers: */
1226 #define TEA6300_S_SA 0x01 /* stereo A input */
1227 #define TEA6300_S_SB 0x02 /* stereo B */
1228 #define TEA6300_S_SC 0x04 /* stereo C */
1229 #define TEA6300_S_GMU 0x80 /* general mute */
1230
1231 #define TEA6320_V 0x00 /* volume (0-5)/loudness off (6)/zero crossing mute(7) */
1232 #define TEA6320_FFR 0x01 /* fader front right (0-5) */
1233 #define TEA6320_FFL 0x02 /* fader front left (0-5) */
1234 #define TEA6320_FRR 0x03 /* fader rear right (0-5) */
1235 #define TEA6320_FRL 0x04 /* fader rear left (0-5) */
1236 #define TEA6320_BA 0x05 /* bass (0-4) */
1237 #define TEA6320_TR 0x06 /* treble (0-4) */
1238 #define TEA6320_S 0x07 /* switch register */
1239 /* values for those registers: */
1240 #define TEA6320_S_SA 0x07 /* stereo A input */
1241 #define TEA6320_S_SB 0x06 /* stereo B */
1242 #define TEA6320_S_SC 0x05 /* stereo C */
1243 #define TEA6320_S_SD 0x04 /* stereo D */
1244 #define TEA6320_S_GMU 0x80 /* general mute */
1245
1246 #define TEA6420_S_SA 0x00 /* stereo A input */
1247 #define TEA6420_S_SB 0x01 /* stereo B */
1248 #define TEA6420_S_SC 0x02 /* stereo C */
1249 #define TEA6420_S_SD 0x03 /* stereo D */
1250 #define TEA6420_S_SE 0x04 /* stereo E */
1251 #define TEA6420_S_GMU 0x05 /* general mute */
1252
1253 static int tea6300_shift10(int val) { return val >> 10; }
1254 static int tea6300_shift12(int val) { return val >> 12; }
1255
1256 /* Assumes 16bit input (values 0x3f to 0x0c are unique, values less than */
1257 /* 0x0c mirror those immediately higher) */
1258 static int tea6320_volume(int val) { return (val / (65535/(63-12)) + 12) & 0x3f; }
1259 static int tea6320_shift11(int val) { return val >> 11; }
1260 static int tea6320_initialize(struct CHIPSTATE * chip)
1261 {
1262 chip_write(chip, TEA6320_FFR, 0x3f);
1263 chip_write(chip, TEA6320_FFL, 0x3f);
1264 chip_write(chip, TEA6320_FRR, 0x3f);
1265 chip_write(chip, TEA6320_FRL, 0x3f);
1266
1267 return 0;
1268 }
1269
1270
1271 /* ---------------------------------------------------------------------- */
1272 /* audio chip descriptions - defines+functions for tda8425 */
1273
1274 #define TDA8425_VL 0x00 /* volume left */
1275 #define TDA8425_VR 0x01 /* volume right */
1276 #define TDA8425_BA 0x02 /* bass */
1277 #define TDA8425_TR 0x03 /* treble */
1278 #define TDA8425_S1 0x08 /* switch functions */
1279 /* values for those registers: */
1280 #define TDA8425_S1_OFF 0xEE /* audio off (mute on) */
1281 #define TDA8425_S1_CH1 0xCE /* audio channel 1 (mute off) - "linear stereo" mode */
1282 #define TDA8425_S1_CH2 0xCF /* audio channel 2 (mute off) - "linear stereo" mode */
1283 #define TDA8425_S1_MU 0x20 /* mute bit */
1284 #define TDA8425_S1_STEREO 0x18 /* stereo bits */
1285 #define TDA8425_S1_STEREO_SPATIAL 0x18 /* spatial stereo */
1286 #define TDA8425_S1_STEREO_LINEAR 0x08 /* linear stereo */
1287 #define TDA8425_S1_STEREO_PSEUDO 0x10 /* pseudo stereo */
1288 #define TDA8425_S1_STEREO_MONO 0x00 /* forced mono */
1289 #define TDA8425_S1_ML 0x06 /* language selector */
1290 #define TDA8425_S1_ML_SOUND_A 0x02 /* sound a */
1291 #define TDA8425_S1_ML_SOUND_B 0x04 /* sound b */
1292 #define TDA8425_S1_ML_STEREO 0x06 /* stereo */
1293 #define TDA8425_S1_IS 0x01 /* channel selector */
1294
1295
1296 static int tda8425_shift10(int val) { return (val >> 10) | 0xc0; }
1297 static int tda8425_shift12(int val) { return (val >> 12) | 0xf0; }
1298
1299 static void tda8425_setaudmode(struct CHIPSTATE *chip, int mode)
1300 {
1301 int s1 = chip->shadow.bytes[TDA8425_S1+1] & 0xe1;
1302
1303 switch (mode) {
1304 case V4L2_TUNER_MODE_LANG1:
1305 s1 |= TDA8425_S1_ML_SOUND_A;
1306 s1 |= TDA8425_S1_STEREO_PSEUDO;
1307 break;
1308 case V4L2_TUNER_MODE_LANG2:
1309 s1 |= TDA8425_S1_ML_SOUND_B;
1310 s1 |= TDA8425_S1_STEREO_PSEUDO;
1311 break;
1312 case V4L2_TUNER_MODE_LANG1_LANG2:
1313 s1 |= TDA8425_S1_ML_STEREO;
1314 s1 |= TDA8425_S1_STEREO_LINEAR;
1315 break;
1316 case V4L2_TUNER_MODE_MONO:
1317 s1 |= TDA8425_S1_ML_STEREO;
1318 s1 |= TDA8425_S1_STEREO_MONO;
1319 break;
1320 case V4L2_TUNER_MODE_STEREO:
1321 s1 |= TDA8425_S1_ML_STEREO;
1322 s1 |= TDA8425_S1_STEREO_SPATIAL;
1323 break;
1324 default:
1325 return;
1326 }
1327 chip_write(chip,TDA8425_S1,s1);
1328 }
1329
1330
1331 /* ---------------------------------------------------------------------- */
1332 /* audio chip descriptions - defines+functions for pic16c54 (PV951) */
1333
1334 /* the registers of 16C54, I2C sub address. */
1335 #define PIC16C54_REG_KEY_CODE 0x01 /* Not use. */
1336 #define PIC16C54_REG_MISC 0x02
1337
1338 /* bit definition of the RESET register, I2C data. */
1339 #define PIC16C54_MISC_RESET_REMOTE_CTL 0x01 /* bit 0, Reset to receive the key */
1340 /* code of remote controller */
1341 #define PIC16C54_MISC_MTS_MAIN 0x02 /* bit 1 */
1342 #define PIC16C54_MISC_MTS_SAP 0x04 /* bit 2 */
1343 #define PIC16C54_MISC_MTS_BOTH 0x08 /* bit 3 */
1344 #define PIC16C54_MISC_SND_MUTE 0x10 /* bit 4, Mute Audio(Line-in and Tuner) */
1345 #define PIC16C54_MISC_SND_NOTMUTE 0x20 /* bit 5 */
1346 #define PIC16C54_MISC_SWITCH_TUNER 0x40 /* bit 6 , Switch to Line-in */
1347 #define PIC16C54_MISC_SWITCH_LINE 0x80 /* bit 7 , Switch to Tuner */
1348
1349 /* ---------------------------------------------------------------------- */
1350 /* audio chip descriptions - defines+functions for TA8874Z */
1351
1352 /* write 1st byte */
1353 #define TA8874Z_LED_STE 0x80
1354 #define TA8874Z_LED_BIL 0x40
1355 #define TA8874Z_LED_EXT 0x20
1356 #define TA8874Z_MONO_SET 0x10
1357 #define TA8874Z_MUTE 0x08
1358 #define TA8874Z_F_MONO 0x04
1359 #define TA8874Z_MODE_SUB 0x02
1360 #define TA8874Z_MODE_MAIN 0x01
1361
1362 /* write 2nd byte */
1363 /*#define TA8874Z_TI 0x80 */ /* test mode */
1364 #define TA8874Z_SEPARATION 0x3f
1365 #define TA8874Z_SEPARATION_DEFAULT 0x10
1366
1367 /* read */
1368 #define TA8874Z_B1 0x80
1369 #define TA8874Z_B0 0x40
1370 #define TA8874Z_CHAG_FLAG 0x20
1371
1372 /*
1373 * B1 B0
1374 * mono L H
1375 * stereo L L
1376 * BIL H L
1377 */
1378 static int ta8874z_getrxsubchans(struct CHIPSTATE *chip)
1379 {
1380 int val, mode;
1381
1382 val = chip_read(chip);
1383 mode = V4L2_TUNER_SUB_MONO;
1384 if (val & TA8874Z_B1){
1385 mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1386 }else if (!(val & TA8874Z_B0)){
1387 mode = V4L2_TUNER_SUB_STEREO;
1388 }
1389 /* v4l2_dbg(1, debug, &chip->sd,
1390 "ta8874z_getrxsubchans(): raw chip read: 0x%02x, return: 0x%02x\n",
1391 val, mode); */
1392 return mode;
1393 }
1394
1395 static audiocmd ta8874z_stereo = { 2, {0, TA8874Z_SEPARATION_DEFAULT}};
1396 static audiocmd ta8874z_mono = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}};
1397 static audiocmd ta8874z_main = {2, { 0, TA8874Z_SEPARATION_DEFAULT}};
1398 static audiocmd ta8874z_sub = {2, { TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}};
1399 static audiocmd ta8874z_both = {2, { TA8874Z_MODE_MAIN | TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}};
1400
1401 static void ta8874z_setaudmode(struct CHIPSTATE *chip, int mode)
1402 {
1403 struct v4l2_subdev *sd = &chip->sd;
1404 int update = 1;
1405 audiocmd *t = NULL;
1406
1407 v4l2_dbg(1, debug, sd, "ta8874z_setaudmode(): mode: 0x%02x\n", mode);
1408
1409 switch(mode){
1410 case V4L2_TUNER_MODE_MONO:
1411 t = &ta8874z_mono;
1412 break;
1413 case V4L2_TUNER_MODE_STEREO:
1414 t = &ta8874z_stereo;
1415 break;
1416 case V4L2_TUNER_MODE_LANG1:
1417 t = &ta8874z_main;
1418 break;
1419 case V4L2_TUNER_MODE_LANG2:
1420 t = &ta8874z_sub;
1421 break;
1422 case V4L2_TUNER_MODE_LANG1_LANG2:
1423 t = &ta8874z_both;
1424 break;
1425 default:
1426 update = 0;
1427 }
1428
1429 if(update)
1430 chip_cmd(chip, "TA8874Z", t);
1431 }
1432
1433 static int ta8874z_checkit(struct CHIPSTATE *chip)
1434 {
1435 int rc;
1436 rc = chip_read(chip);
1437 return ((rc & 0x1f) == 0x1f) ? 1 : 0;
1438 }
1439
1440 /* ---------------------------------------------------------------------- */
1441 /* audio chip descriptions - struct CHIPDESC */
1442
1443 /* insmod options to enable/disable individual audio chips */
1444 static int tda8425 = 1;
1445 static int tda9840 = 1;
1446 static int tda9850 = 1;
1447 static int tda9855 = 1;
1448 static int tda9873 = 1;
1449 static int tda9874a = 1;
1450 static int tda9875 = 1;
1451 static int tea6300; /* default 0 - address clash with msp34xx */
1452 static int tea6320; /* default 0 - address clash with msp34xx */
1453 static int tea6420 = 1;
1454 static int pic16c54 = 1;
1455 static int ta8874z; /* default 0 - address clash with tda9840 */
1456
1457 module_param(tda8425, int, 0444);
1458 module_param(tda9840, int, 0444);
1459 module_param(tda9850, int, 0444);
1460 module_param(tda9855, int, 0444);
1461 module_param(tda9873, int, 0444);
1462 module_param(tda9874a, int, 0444);
1463 module_param(tda9875, int, 0444);
1464 module_param(tea6300, int, 0444);
1465 module_param(tea6320, int, 0444);
1466 module_param(tea6420, int, 0444);
1467 module_param(pic16c54, int, 0444);
1468 module_param(ta8874z, int, 0444);
1469
1470 static struct CHIPDESC chiplist[] = {
1471 {
1472 .name = "tda9840",
1473 .insmodopt = &tda9840,
1474 .addr_lo = I2C_ADDR_TDA9840 >> 1,
1475 .addr_hi = I2C_ADDR_TDA9840 >> 1,
1476 .registers = 5,
1477 .flags = CHIP_NEED_CHECKMODE,
1478
1479 /* callbacks */
1480 .checkit = tda9840_checkit,
1481 .getrxsubchans = tda9840_getrxsubchans,
1482 .setaudmode = tda9840_setaudmode,
1483
1484 .init = { 2, { TDA9840_TEST, TDA9840_TEST_INT1SN
1485 /* ,TDA9840_SW, TDA9840_MONO */} }
1486 },
1487 {
1488 .name = "tda9873h",
1489 .insmodopt = &tda9873,
1490 .addr_lo = I2C_ADDR_TDA985x_L >> 1,
1491 .addr_hi = I2C_ADDR_TDA985x_H >> 1,
1492 .registers = 3,
1493 .flags = CHIP_HAS_INPUTSEL | CHIP_NEED_CHECKMODE,
1494
1495 /* callbacks */
1496 .checkit = tda9873_checkit,
1497 .getrxsubchans = tda9873_getrxsubchans,
1498 .setaudmode = tda9873_setaudmode,
1499
1500 .init = { 4, { TDA9873_SW, 0xa4, 0x06, 0x03 } },
1501 .inputreg = TDA9873_SW,
1502 .inputmute = TDA9873_MUTE | TDA9873_AUTOMUTE,
1503 .inputmap = {0xa0, 0xa2, 0xa0, 0xa0},
1504 .inputmask = TDA9873_INP_MASK|TDA9873_MUTE|TDA9873_AUTOMUTE,
1505
1506 },
1507 {
1508 .name = "tda9874h/a",
1509 .insmodopt = &tda9874a,
1510 .addr_lo = I2C_ADDR_TDA9874 >> 1,
1511 .addr_hi = I2C_ADDR_TDA9874 >> 1,
1512 .flags = CHIP_NEED_CHECKMODE,
1513
1514 /* callbacks */
1515 .initialize = tda9874a_initialize,
1516 .checkit = tda9874a_checkit,
1517 .getrxsubchans = tda9874a_getrxsubchans,
1518 .setaudmode = tda9874a_setaudmode,
1519 },
1520 {
1521 .name = "tda9875",
1522 .insmodopt = &tda9875,
1523 .addr_lo = I2C_ADDR_TDA9875 >> 1,
1524 .addr_hi = I2C_ADDR_TDA9875 >> 1,
1525 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE,
1526
1527 /* callbacks */
1528 .initialize = tda9875_initialize,
1529 .checkit = tda9875_checkit,
1530 .volfunc = tda9875_volume,
1531 .bassfunc = tda9875_bass,
1532 .treblefunc = tda9875_treble,
1533 .leftreg = TDA9875_MVL,
1534 .rightreg = TDA9875_MVR,
1535 .bassreg = TDA9875_MBA,
1536 .treblereg = TDA9875_MTR,
1537 .volinit = 58880,
1538 },
1539 {
1540 .name = "tda9850",
1541 .insmodopt = &tda9850,
1542 .addr_lo = I2C_ADDR_TDA985x_L >> 1,
1543 .addr_hi = I2C_ADDR_TDA985x_H >> 1,
1544 .registers = 11,
1545
1546 .getrxsubchans = tda985x_getrxsubchans,
1547 .setaudmode = tda985x_setaudmode,
1548
1549 .init = { 8, { TDA9850_C4, 0x08, 0x08, TDA985x_STEREO, 0x07, 0x10, 0x10, 0x03 } }
1550 },
1551 {
1552 .name = "tda9855",
1553 .insmodopt = &tda9855,
1554 .addr_lo = I2C_ADDR_TDA985x_L >> 1,
1555 .addr_hi = I2C_ADDR_TDA985x_H >> 1,
1556 .registers = 11,
1557 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE,
1558
1559 .leftreg = TDA9855_VL,
1560 .rightreg = TDA9855_VR,
1561 .bassreg = TDA9855_BA,
1562 .treblereg = TDA9855_TR,
1563
1564 /* callbacks */
1565 .volfunc = tda9855_volume,
1566 .bassfunc = tda9855_bass,
1567 .treblefunc = tda9855_treble,
1568 .getrxsubchans = tda985x_getrxsubchans,
1569 .setaudmode = tda985x_setaudmode,
1570
1571 .init = { 12, { 0, 0x6f, 0x6f, 0x0e, 0x07<<1, 0x8<<2,
1572 TDA9855_MUTE | TDA9855_AVL | TDA9855_LOUD | TDA9855_INT,
1573 TDA985x_STEREO | TDA9855_LINEAR | TDA9855_TZCM | TDA9855_VZCM,
1574 0x07, 0x10, 0x10, 0x03 }}
1575 },
1576 {
1577 .name = "tea6300",
1578 .insmodopt = &tea6300,
1579 .addr_lo = I2C_ADDR_TEA6300 >> 1,
1580 .addr_hi = I2C_ADDR_TEA6300 >> 1,
1581 .registers = 6,
1582 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1583
1584 .leftreg = TEA6300_VR,
1585 .rightreg = TEA6300_VL,
1586 .bassreg = TEA6300_BA,
1587 .treblereg = TEA6300_TR,
1588
1589 /* callbacks */
1590 .volfunc = tea6300_shift10,
1591 .bassfunc = tea6300_shift12,
1592 .treblefunc = tea6300_shift12,
1593
1594 .inputreg = TEA6300_S,
1595 .inputmap = { TEA6300_S_SA, TEA6300_S_SB, TEA6300_S_SC },
1596 .inputmute = TEA6300_S_GMU,
1597 },
1598 {
1599 .name = "tea6320",
1600 .insmodopt = &tea6320,
1601 .addr_lo = I2C_ADDR_TEA6300 >> 1,
1602 .addr_hi = I2C_ADDR_TEA6300 >> 1,
1603 .registers = 8,
1604 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1605
1606 .leftreg = TEA6320_V,
1607 .rightreg = TEA6320_V,
1608 .bassreg = TEA6320_BA,
1609 .treblereg = TEA6320_TR,
1610
1611 /* callbacks */
1612 .initialize = tea6320_initialize,
1613 .volfunc = tea6320_volume,
1614 .bassfunc = tea6320_shift11,
1615 .treblefunc = tea6320_shift11,
1616
1617 .inputreg = TEA6320_S,
1618 .inputmap = { TEA6320_S_SA, TEA6420_S_SB, TEA6300_S_SC, TEA6320_S_SD },
1619 .inputmute = TEA6300_S_GMU,
1620 },
1621 {
1622 .name = "tea6420",
1623 .insmodopt = &tea6420,
1624 .addr_lo = I2C_ADDR_TEA6420 >> 1,
1625 .addr_hi = I2C_ADDR_TEA6420 >> 1,
1626 .registers = 1,
1627 .flags = CHIP_HAS_INPUTSEL,
1628
1629 .inputreg = -1,
1630 .inputmap = { TEA6420_S_SA, TEA6420_S_SB, TEA6420_S_SC },
1631 .inputmute = TEA6420_S_GMU,
1632 .inputmask = 0x07,
1633 },
1634 {
1635 .name = "tda8425",
1636 .insmodopt = &tda8425,
1637 .addr_lo = I2C_ADDR_TDA8425 >> 1,
1638 .addr_hi = I2C_ADDR_TDA8425 >> 1,
1639 .registers = 9,
1640 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1641
1642 .leftreg = TDA8425_VL,
1643 .rightreg = TDA8425_VR,
1644 .bassreg = TDA8425_BA,
1645 .treblereg = TDA8425_TR,
1646
1647 /* callbacks */
1648 .volfunc = tda8425_shift10,
1649 .bassfunc = tda8425_shift12,
1650 .treblefunc = tda8425_shift12,
1651 .setaudmode = tda8425_setaudmode,
1652
1653 .inputreg = TDA8425_S1,
1654 .inputmap = { TDA8425_S1_CH1, TDA8425_S1_CH1, TDA8425_S1_CH1 },
1655 .inputmute = TDA8425_S1_OFF,
1656
1657 },
1658 {
1659 .name = "pic16c54 (PV951)",
1660 .insmodopt = &pic16c54,
1661 .addr_lo = I2C_ADDR_PIC16C54 >> 1,
1662 .addr_hi = I2C_ADDR_PIC16C54>> 1,
1663 .registers = 2,
1664 .flags = CHIP_HAS_INPUTSEL,
1665
1666 .inputreg = PIC16C54_REG_MISC,
1667 .inputmap = {PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_TUNER,
1668 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1669 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1670 PIC16C54_MISC_SND_MUTE},
1671 .inputmute = PIC16C54_MISC_SND_MUTE,
1672 },
1673 {
1674 .name = "ta8874z",
1675 .checkit = ta8874z_checkit,
1676 .insmodopt = &ta8874z,
1677 .addr_lo = I2C_ADDR_TDA9840 >> 1,
1678 .addr_hi = I2C_ADDR_TDA9840 >> 1,
1679 .registers = 2,
1680
1681 /* callbacks */
1682 .getrxsubchans = ta8874z_getrxsubchans,
1683 .setaudmode = ta8874z_setaudmode,
1684
1685 .init = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}},
1686 },
1687 { .name = NULL } /* EOF */
1688 };
1689
1690
1691 /* ---------------------------------------------------------------------- */
1692
1693 static int tvaudio_s_ctrl(struct v4l2_ctrl *ctrl)
1694 {
1695 struct v4l2_subdev *sd = to_sd(ctrl);
1696 struct CHIPSTATE *chip = to_state(sd);
1697 struct CHIPDESC *desc = chip->desc;
1698
1699 switch (ctrl->id) {
1700 case V4L2_CID_AUDIO_MUTE:
1701 chip->muted = ctrl->val;
1702 if (chip->muted)
1703 chip_write_masked(chip,desc->inputreg,desc->inputmute,desc->inputmask);
1704 else
1705 chip_write_masked(chip,desc->inputreg,
1706 desc->inputmap[chip->input],desc->inputmask);
1707 return 0;
1708 case V4L2_CID_AUDIO_VOLUME: {
1709 u32 volume, balance;
1710 u32 left, right;
1711
1712 volume = chip->volume->val;
1713 balance = chip->balance->val;
1714 left = (min(65536U - balance, 32768U) * volume) / 32768U;
1715 right = (min(balance, 32768U) * volume) / 32768U;
1716
1717 chip_write(chip, desc->leftreg, desc->volfunc(left));
1718 chip_write(chip, desc->rightreg, desc->volfunc(right));
1719 return 0;
1720 }
1721 case V4L2_CID_AUDIO_BASS:
1722 chip_write(chip, desc->bassreg, desc->bassfunc(ctrl->val));
1723 return 0;
1724 case V4L2_CID_AUDIO_TREBLE:
1725 chip_write(chip, desc->treblereg, desc->treblefunc(ctrl->val));
1726 return 0;
1727 }
1728 return -EINVAL;
1729 }
1730
1731
1732 /* ---------------------------------------------------------------------- */
1733 /* video4linux interface */
1734
1735 static int tvaudio_s_radio(struct v4l2_subdev *sd)
1736 {
1737 struct CHIPSTATE *chip = to_state(sd);
1738
1739 chip->radio = 1;
1740 /* del_timer(&chip->wt); */
1741 return 0;
1742 }
1743
1744 static int tvaudio_s_routing(struct v4l2_subdev *sd,
1745 u32 input, u32 output, u32 config)
1746 {
1747 struct CHIPSTATE *chip = to_state(sd);
1748 struct CHIPDESC *desc = chip->desc;
1749
1750 if (!(desc->flags & CHIP_HAS_INPUTSEL))
1751 return 0;
1752 if (input >= 4)
1753 return -EINVAL;
1754 /* There are four inputs: tuner, radio, extern and intern. */
1755 chip->input = input;
1756 if (chip->muted)
1757 return 0;
1758 chip_write_masked(chip, desc->inputreg,
1759 desc->inputmap[chip->input], desc->inputmask);
1760 return 0;
1761 }
1762
1763 static int tvaudio_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *vt)
1764 {
1765 struct CHIPSTATE *chip = to_state(sd);
1766 struct CHIPDESC *desc = chip->desc;
1767
1768 if (!desc->setaudmode)
1769 return 0;
1770 if (chip->radio)
1771 return 0;
1772
1773 switch (vt->audmode) {
1774 case V4L2_TUNER_MODE_MONO:
1775 case V4L2_TUNER_MODE_STEREO:
1776 case V4L2_TUNER_MODE_LANG1:
1777 case V4L2_TUNER_MODE_LANG2:
1778 case V4L2_TUNER_MODE_LANG1_LANG2:
1779 break;
1780 default:
1781 return -EINVAL;
1782 }
1783 chip->audmode = vt->audmode;
1784
1785 if (chip->thread)
1786 wake_up_process(chip->thread);
1787 else
1788 desc->setaudmode(chip, vt->audmode);
1789
1790 return 0;
1791 }
1792
1793 static int tvaudio_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
1794 {
1795 struct CHIPSTATE *chip = to_state(sd);
1796 struct CHIPDESC *desc = chip->desc;
1797
1798 if (!desc->getrxsubchans)
1799 return 0;
1800 if (chip->radio)
1801 return 0;
1802
1803 vt->audmode = chip->audmode;
1804 vt->rxsubchans = desc->getrxsubchans(chip);
1805 vt->capability |= V4L2_TUNER_CAP_STEREO |
1806 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1807
1808 return 0;
1809 }
1810
1811 static int tvaudio_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
1812 {
1813 struct CHIPSTATE *chip = to_state(sd);
1814
1815 chip->radio = 0;
1816 return 0;
1817 }
1818
1819 static int tvaudio_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *freq)
1820 {
1821 struct CHIPSTATE *chip = to_state(sd);
1822 struct CHIPDESC *desc = chip->desc;
1823
1824 /* For chips that provide getrxsubchans and setaudmode, and doesn't
1825 automatically follows the stereo carrier, a kthread is
1826 created to set the audio standard. In this case, when then
1827 the video channel is changed, tvaudio starts on MONO mode.
1828 After waiting for 2 seconds, the kernel thread is called,
1829 to follow whatever audio standard is pointed by the
1830 audio carrier.
1831 */
1832 if (chip->thread) {
1833 desc->setaudmode(chip, V4L2_TUNER_MODE_MONO);
1834 chip->prevmode = -1; /* reset previous mode */
1835 mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000));
1836 }
1837 return 0;
1838 }
1839
1840 static int tvaudio_log_status(struct v4l2_subdev *sd)
1841 {
1842 struct CHIPSTATE *chip = to_state(sd);
1843 struct CHIPDESC *desc = chip->desc;
1844
1845 v4l2_info(sd, "Chip: %s\n", desc->name);
1846 v4l2_ctrl_handler_log_status(&chip->hdl, sd->name);
1847 return 0;
1848 }
1849
1850 /* ----------------------------------------------------------------------- */
1851
1852 static const struct v4l2_ctrl_ops tvaudio_ctrl_ops = {
1853 .s_ctrl = tvaudio_s_ctrl,
1854 };
1855
1856 static const struct v4l2_subdev_core_ops tvaudio_core_ops = {
1857 .log_status = tvaudio_log_status,
1858 .g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
1859 .try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
1860 .s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
1861 .g_ctrl = v4l2_subdev_g_ctrl,
1862 .s_ctrl = v4l2_subdev_s_ctrl,
1863 .queryctrl = v4l2_subdev_queryctrl,
1864 .querymenu = v4l2_subdev_querymenu,
1865 .s_std = tvaudio_s_std,
1866 };
1867
1868 static const struct v4l2_subdev_tuner_ops tvaudio_tuner_ops = {
1869 .s_radio = tvaudio_s_radio,
1870 .s_frequency = tvaudio_s_frequency,
1871 .s_tuner = tvaudio_s_tuner,
1872 .g_tuner = tvaudio_g_tuner,
1873 };
1874
1875 static const struct v4l2_subdev_audio_ops tvaudio_audio_ops = {
1876 .s_routing = tvaudio_s_routing,
1877 };
1878
1879 static const struct v4l2_subdev_ops tvaudio_ops = {
1880 .core = &tvaudio_core_ops,
1881 .tuner = &tvaudio_tuner_ops,
1882 .audio = &tvaudio_audio_ops,
1883 };
1884
1885 /* ----------------------------------------------------------------------- */
1886
1887
1888 /* i2c registration */
1889
1890 static int tvaudio_probe(struct i2c_client *client, const struct i2c_device_id *id)
1891 {
1892 struct CHIPSTATE *chip;
1893 struct CHIPDESC *desc;
1894 struct v4l2_subdev *sd;
1895
1896 if (debug) {
1897 printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux driver\n");
1898 printk(KERN_INFO "tvaudio: known chips: ");
1899 for (desc = chiplist; desc->name != NULL; desc++)
1900 printk("%s%s", (desc == chiplist) ? "" : ", ", desc->name);
1901 printk("\n");
1902 }
1903
1904 chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
1905 if (!chip)
1906 return -ENOMEM;
1907 sd = &chip->sd;
1908 v4l2_i2c_subdev_init(sd, client, &tvaudio_ops);
1909
1910 /* find description for the chip */
1911 v4l2_dbg(1, debug, sd, "chip found @ 0x%x\n", client->addr<<1);
1912 for (desc = chiplist; desc->name != NULL; desc++) {
1913 if (0 == *(desc->insmodopt))
1914 continue;
1915 if (client->addr < desc->addr_lo ||
1916 client->addr > desc->addr_hi)
1917 continue;
1918 if (desc->checkit && !desc->checkit(chip))
1919 continue;
1920 break;
1921 }
1922 if (desc->name == NULL) {
1923 v4l2_dbg(1, debug, sd, "no matching chip description found\n");
1924 return -EIO;
1925 }
1926 v4l2_info(sd, "%s found @ 0x%x (%s)\n", desc->name, client->addr<<1, client->adapter->name);
1927 if (desc->flags) {
1928 v4l2_dbg(1, debug, sd, "matches:%s%s%s.\n",
1929 (desc->flags & CHIP_HAS_VOLUME) ? " volume" : "",
1930 (desc->flags & CHIP_HAS_BASSTREBLE) ? " bass/treble" : "",
1931 (desc->flags & CHIP_HAS_INPUTSEL) ? " audiomux" : "");
1932 }
1933
1934 /* fill required data structures */
1935 if (!id)
1936 strlcpy(client->name, desc->name, I2C_NAME_SIZE);
1937 chip->desc = desc;
1938 chip->shadow.count = desc->registers+1;
1939 chip->prevmode = -1;
1940 chip->audmode = V4L2_TUNER_MODE_LANG1;
1941
1942 /* initialization */
1943 if (desc->initialize != NULL)
1944 desc->initialize(chip);
1945 else
1946 chip_cmd(chip, "init", &desc->init);
1947
1948 v4l2_ctrl_handler_init(&chip->hdl, 5);
1949 if (desc->flags & CHIP_HAS_INPUTSEL)
1950 v4l2_ctrl_new_std(&chip->hdl, &tvaudio_ctrl_ops,
1951 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
1952 if (desc->flags & CHIP_HAS_VOLUME) {
1953 if (!desc->volfunc) {
1954 /* This shouldn't be happen. Warn user, but keep working
1955 without volume controls
1956 */
1957 v4l2_info(sd, "volume callback undefined!\n");
1958 desc->flags &= ~CHIP_HAS_VOLUME;
1959 } else {
1960 chip->volume = v4l2_ctrl_new_std(&chip->hdl,
1961 &tvaudio_ctrl_ops, V4L2_CID_AUDIO_VOLUME,
1962 0, 65535, 65535 / 100,
1963 desc->volinit ? desc->volinit : 65535);
1964 chip->balance = v4l2_ctrl_new_std(&chip->hdl,
1965 &tvaudio_ctrl_ops, V4L2_CID_AUDIO_BALANCE,
1966 0, 65535, 65535 / 100, 32768);
1967 v4l2_ctrl_cluster(2, &chip->volume);
1968 }
1969 }
1970 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1971 if (!desc->bassfunc || !desc->treblefunc) {
1972 /* This shouldn't be happen. Warn user, but keep working
1973 without bass/treble controls
1974 */
1975 v4l2_info(sd, "bass/treble callbacks undefined!\n");
1976 desc->flags &= ~CHIP_HAS_BASSTREBLE;
1977 } else {
1978 v4l2_ctrl_new_std(&chip->hdl,
1979 &tvaudio_ctrl_ops, V4L2_CID_AUDIO_BASS,
1980 0, 65535, 65535 / 100,
1981 desc->bassinit ? desc->bassinit : 32768);
1982 v4l2_ctrl_new_std(&chip->hdl,
1983 &tvaudio_ctrl_ops, V4L2_CID_AUDIO_TREBLE,
1984 0, 65535, 65535 / 100,
1985 desc->trebleinit ? desc->trebleinit : 32768);
1986 }
1987 }
1988
1989 sd->ctrl_handler = &chip->hdl;
1990 if (chip->hdl.error) {
1991 int err = chip->hdl.error;
1992
1993 v4l2_ctrl_handler_free(&chip->hdl);
1994 return err;
1995 }
1996 /* set controls to the default values */
1997 v4l2_ctrl_handler_setup(&chip->hdl);
1998
1999 chip->thread = NULL;
2000 init_timer(&chip->wt);
2001 if (desc->flags & CHIP_NEED_CHECKMODE) {
2002 if (!desc->getrxsubchans || !desc->setaudmode) {
2003 /* This shouldn't be happen. Warn user, but keep working
2004 without kthread
2005 */
2006 v4l2_info(sd, "set/get mode callbacks undefined!\n");
2007 return 0;
2008 }
2009 /* start async thread */
2010 chip->wt.function = chip_thread_wake;
2011 chip->wt.data = (unsigned long)chip;
2012 chip->thread = kthread_run(chip_thread, chip, "%s",
2013 client->name);
2014 if (IS_ERR(chip->thread)) {
2015 v4l2_warn(sd, "failed to create kthread\n");
2016 chip->thread = NULL;
2017 }
2018 }
2019 return 0;
2020 }
2021
2022 static int tvaudio_remove(struct i2c_client *client)
2023 {
2024 struct v4l2_subdev *sd = i2c_get_clientdata(client);
2025 struct CHIPSTATE *chip = to_state(sd);
2026
2027 del_timer_sync(&chip->wt);
2028 if (chip->thread) {
2029 /* shutdown async thread */
2030 kthread_stop(chip->thread);
2031 chip->thread = NULL;
2032 }
2033
2034 v4l2_device_unregister_subdev(sd);
2035 v4l2_ctrl_handler_free(&chip->hdl);
2036 return 0;
2037 }
2038
2039 /* This driver supports many devices and the idea is to let the driver
2040 detect which device is present. So rather than listing all supported
2041 devices here, we pretend to support a single, fake device type. */
2042 static const struct i2c_device_id tvaudio_id[] = {
2043 { "tvaudio", 0 },
2044 { }
2045 };
2046 MODULE_DEVICE_TABLE(i2c, tvaudio_id);
2047
2048 static struct i2c_driver tvaudio_driver = {
2049 .driver = {
2050 .owner = THIS_MODULE,
2051 .name = "tvaudio",
2052 },
2053 .probe = tvaudio_probe,
2054 .remove = tvaudio_remove,
2055 .id_table = tvaudio_id,
2056 };
2057
2058 module_i2c_driver(tvaudio_driver);
Linux with added FPC-III support