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[PATCH] v4l: I2C Miscelaneous
[mirror_ubuntu-bionic-kernel.git] / drivers / media / video / tvaudio.c
1 /*
2 * experimental 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 * This code is placed under the terms of the GNU General Public License
11 *
12 * OPTIONS:
13 * debug - set to 1 if you'd like to see debug messages
14 *
15 */
16
17 #include <linux/config.h>
18 #include <linux/module.h>
19 #include <linux/moduleparam.h>
20 #include <linux/kernel.h>
21 #include <linux/sched.h>
22 #include <linux/string.h>
23 #include <linux/timer.h>
24 #include <linux/delay.h>
25 #include <linux/errno.h>
26 #include <linux/slab.h>
27 #include <linux/videodev.h>
28 #include <linux/i2c.h>
29 #include <linux/i2c-algo-bit.h>
30 #include <linux/init.h>
31 #include <linux/smp_lock.h>
32
33 #include <media/audiochip.h>
34 #include <media/id.h>
35
36 #include "tvaudio.h"
37
38 /* ---------------------------------------------------------------------- */
39 /* insmod args */
40
41 static int debug = 0; /* insmod parameter */
42 module_param(debug, int, 0644);
43
44 MODULE_DESCRIPTION("device driver for various i2c TV sound decoder / audiomux chips");
45 MODULE_AUTHOR("Eric Sandeen, Steve VanDeBogart, Greg Alexander, Gerd Knorr");
46 MODULE_LICENSE("GPL");
47
48 #define UNSET (-1U)
49 #define dprintk if (debug) printk
50
51 /* ---------------------------------------------------------------------- */
52 /* our structs */
53
54 #define MAXREGS 64
55
56 struct CHIPSTATE;
57 typedef int (*getvalue)(int);
58 typedef int (*checkit)(struct CHIPSTATE*);
59 typedef int (*initialize)(struct CHIPSTATE*);
60 typedef int (*getmode)(struct CHIPSTATE*);
61 typedef void (*setmode)(struct CHIPSTATE*, int mode);
62 typedef void (*checkmode)(struct CHIPSTATE*);
63
64 /* i2c command */
65 typedef struct AUDIOCMD {
66 int count; /* # of bytes to send */
67 unsigned char bytes[MAXREGS+1]; /* addr, data, data, ... */
68 } audiocmd;
69
70 /* chip description */
71 struct CHIPDESC {
72 char *name; /* chip name */
73 int id; /* ID */
74 int addr_lo, addr_hi; /* i2c address range */
75 int registers; /* # of registers */
76
77 int *insmodopt;
78 checkit checkit;
79 initialize initialize;
80 int flags;
81 #define CHIP_HAS_VOLUME 1
82 #define CHIP_HAS_BASSTREBLE 2
83 #define CHIP_HAS_INPUTSEL 4
84
85 /* various i2c command sequences */
86 audiocmd init;
87
88 /* which register has which value */
89 int leftreg,rightreg,treblereg,bassreg;
90
91 /* initialize with (defaults to 65535/65535/32768/32768 */
92 int leftinit,rightinit,trebleinit,bassinit;
93
94 /* functions to convert the values (v4l -> chip) */
95 getvalue volfunc,treblefunc,bassfunc;
96
97 /* get/set mode */
98 getmode getmode;
99 setmode setmode;
100
101 /* check / autoswitch audio after channel switches */
102 checkmode checkmode;
103
104 /* input switch register + values for v4l inputs */
105 int inputreg;
106 int inputmap[8];
107 int inputmute;
108 int inputmask;
109 };
110 static struct CHIPDESC chiplist[];
111
112 /* current state of the chip */
113 struct CHIPSTATE {
114 struct i2c_client c;
115
116 /* index into CHIPDESC array */
117 int type;
118
119 /* shadow register set */
120 audiocmd shadow;
121
122 /* current settings */
123 __u16 left,right,treble,bass,mode;
124 int prevmode;
125 int norm;
126
127 /* thread */
128 pid_t tpid;
129 struct completion texit;
130 wait_queue_head_t wq;
131 struct timer_list wt;
132 int done;
133 int watch_stereo;
134 };
135
136 #define VIDEO_MODE_RADIO 16 /* norm magic for radio mode */
137
138 /* ---------------------------------------------------------------------- */
139 /* i2c addresses */
140
141 static unsigned short normal_i2c[] = {
142 I2C_TDA8425 >> 1,
143 I2C_TEA6300 >> 1,
144 I2C_TEA6420 >> 1,
145 I2C_TDA9840 >> 1,
146 I2C_TDA985x_L >> 1,
147 I2C_TDA985x_H >> 1,
148 I2C_TDA9874 >> 1,
149 I2C_PIC16C54 >> 1,
150 I2C_CLIENT_END };
151 I2C_CLIENT_INSMOD;
152
153 static struct i2c_driver driver;
154 static struct i2c_client client_template;
155
156
157 /* ---------------------------------------------------------------------- */
158 /* i2c I/O functions */
159
160 static int chip_write(struct CHIPSTATE *chip, int subaddr, int val)
161 {
162 unsigned char buffer[2];
163
164 if (-1 == subaddr) {
165 dprintk("%s: chip_write: 0x%x\n",
166 i2c_clientname(&chip->c), val);
167 chip->shadow.bytes[1] = val;
168 buffer[0] = val;
169 if (1 != i2c_master_send(&chip->c,buffer,1)) {
170 printk(KERN_WARNING "%s: I/O error (write 0x%x)\n",
171 i2c_clientname(&chip->c), val);
172 return -1;
173 }
174 } else {
175 dprintk("%s: chip_write: reg%d=0x%x\n",
176 i2c_clientname(&chip->c), subaddr, val);
177 chip->shadow.bytes[subaddr+1] = val;
178 buffer[0] = subaddr;
179 buffer[1] = val;
180 if (2 != i2c_master_send(&chip->c,buffer,2)) {
181 printk(KERN_WARNING "%s: I/O error (write reg%d=0x%x)\n",
182 i2c_clientname(&chip->c), subaddr, val);
183 return -1;
184 }
185 }
186 return 0;
187 }
188
189 static int chip_write_masked(struct CHIPSTATE *chip, int subaddr, int val, int mask)
190 {
191 if (mask != 0) {
192 if (-1 == subaddr) {
193 val = (chip->shadow.bytes[1] & ~mask) | (val & mask);
194 } else {
195 val = (chip->shadow.bytes[subaddr+1] & ~mask) | (val & mask);
196 }
197 }
198 return chip_write(chip, subaddr, val);
199 }
200
201 static int chip_read(struct CHIPSTATE *chip)
202 {
203 unsigned char buffer;
204
205 if (1 != i2c_master_recv(&chip->c,&buffer,1)) {
206 printk(KERN_WARNING "%s: I/O error (read)\n",
207 i2c_clientname(&chip->c));
208 return -1;
209 }
210 dprintk("%s: chip_read: 0x%x\n",i2c_clientname(&chip->c),buffer);
211 return buffer;
212 }
213
214 static int chip_read2(struct CHIPSTATE *chip, int subaddr)
215 {
216 unsigned char write[1];
217 unsigned char read[1];
218 struct i2c_msg msgs[2] = {
219 { chip->c.addr, 0, 1, write },
220 { chip->c.addr, I2C_M_RD, 1, read }
221 };
222 write[0] = subaddr;
223
224 if (2 != i2c_transfer(chip->c.adapter,msgs,2)) {
225 printk(KERN_WARNING "%s: I/O error (read2)\n",
226 i2c_clientname(&chip->c));
227 return -1;
228 }
229 dprintk("%s: chip_read2: reg%d=0x%x\n",
230 i2c_clientname(&chip->c),subaddr,read[0]);
231 return read[0];
232 }
233
234 static int chip_cmd(struct CHIPSTATE *chip, char *name, audiocmd *cmd)
235 {
236 int i;
237
238 if (0 == cmd->count)
239 return 0;
240
241 /* update our shadow register set; print bytes if (debug > 0) */
242 dprintk("%s: chip_cmd(%s): reg=%d, data:",
243 i2c_clientname(&chip->c),name,cmd->bytes[0]);
244 for (i = 1; i < cmd->count; i++) {
245 dprintk(" 0x%x",cmd->bytes[i]);
246 chip->shadow.bytes[i+cmd->bytes[0]] = cmd->bytes[i];
247 }
248 dprintk("\n");
249
250 /* send data to the chip */
251 if (cmd->count != i2c_master_send(&chip->c,cmd->bytes,cmd->count)) {
252 printk(KERN_WARNING "%s: I/O error (%s)\n", i2c_clientname(&chip->c), name);
253 return -1;
254 }
255 return 0;
256 }
257
258 /* ---------------------------------------------------------------------- */
259 /* kernel thread for doing i2c stuff asyncronly
260 * right now it is used only to check the audio mode (mono/stereo/whatever)
261 * some time after switching to another TV channel, then turn on stereo
262 * if available, ...
263 */
264
265 static void chip_thread_wake(unsigned long data)
266 {
267 struct CHIPSTATE *chip = (struct CHIPSTATE*)data;
268 wake_up_interruptible(&chip->wq);
269 }
270
271 static int chip_thread(void *data)
272 {
273 DECLARE_WAITQUEUE(wait, current);
274 struct CHIPSTATE *chip = data;
275 struct CHIPDESC *desc = chiplist + chip->type;
276
277 daemonize("%s",i2c_clientname(&chip->c));
278 allow_signal(SIGTERM);
279 dprintk("%s: thread started\n", i2c_clientname(&chip->c));
280
281 for (;;) {
282 add_wait_queue(&chip->wq, &wait);
283 if (!chip->done) {
284 set_current_state(TASK_INTERRUPTIBLE);
285 schedule();
286 }
287 remove_wait_queue(&chip->wq, &wait);
288 if (chip->done || signal_pending(current))
289 break;
290 dprintk("%s: thread wakeup\n", i2c_clientname(&chip->c));
291
292 /* don't do anything for radio or if mode != auto */
293 if (chip->norm == VIDEO_MODE_RADIO || chip->mode != 0)
294 continue;
295
296 /* have a look what's going on */
297 desc->checkmode(chip);
298
299 /* schedule next check */
300 mod_timer(&chip->wt, jiffies+2*HZ);
301 }
302
303 dprintk("%s: thread exiting\n", i2c_clientname(&chip->c));
304 complete_and_exit(&chip->texit, 0);
305 return 0;
306 }
307
308 static void generic_checkmode(struct CHIPSTATE *chip)
309 {
310 struct CHIPDESC *desc = chiplist + chip->type;
311 int mode = desc->getmode(chip);
312
313 if (mode == chip->prevmode)
314 return;
315
316 dprintk("%s: thread checkmode\n", i2c_clientname(&chip->c));
317 chip->prevmode = mode;
318
319 if (mode & VIDEO_SOUND_STEREO)
320 desc->setmode(chip,VIDEO_SOUND_STEREO);
321 else if (mode & VIDEO_SOUND_LANG1)
322 desc->setmode(chip,VIDEO_SOUND_LANG1);
323 else if (mode & VIDEO_SOUND_LANG2)
324 desc->setmode(chip,VIDEO_SOUND_LANG2);
325 else
326 desc->setmode(chip,VIDEO_SOUND_MONO);
327 }
328
329 /* ---------------------------------------------------------------------- */
330 /* audio chip descriptions - defines+functions for tda9840 */
331
332 #define TDA9840_SW 0x00
333 #define TDA9840_LVADJ 0x02
334 #define TDA9840_STADJ 0x03
335 #define TDA9840_TEST 0x04
336
337 #define TDA9840_MONO 0x10
338 #define TDA9840_STEREO 0x2a
339 #define TDA9840_DUALA 0x12
340 #define TDA9840_DUALB 0x1e
341 #define TDA9840_DUALAB 0x1a
342 #define TDA9840_DUALBA 0x16
343 #define TDA9840_EXTERNAL 0x7a
344
345 #define TDA9840_DS_DUAL 0x20 /* Dual sound identified */
346 #define TDA9840_ST_STEREO 0x40 /* Stereo sound identified */
347 #define TDA9840_PONRES 0x80 /* Power-on reset detected if = 1 */
348
349 #define TDA9840_TEST_INT1SN 0x1 /* Integration time 0.5s when set */
350 #define TDA9840_TEST_INTFU 0x02 /* Disables integrator function */
351
352 static int tda9840_getmode(struct CHIPSTATE *chip)
353 {
354 int val, mode;
355
356 val = chip_read(chip);
357 mode = VIDEO_SOUND_MONO;
358 if (val & TDA9840_DS_DUAL)
359 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
360 if (val & TDA9840_ST_STEREO)
361 mode |= VIDEO_SOUND_STEREO;
362
363 dprintk ("tda9840_getmode(): raw chip read: %d, return: %d\n",
364 val, mode);
365 return mode;
366 }
367
368 static void tda9840_setmode(struct CHIPSTATE *chip, int mode)
369 {
370 int update = 1;
371 int t = chip->shadow.bytes[TDA9840_SW + 1] & ~0x7e;
372
373 switch (mode) {
374 case VIDEO_SOUND_MONO:
375 t |= TDA9840_MONO;
376 break;
377 case VIDEO_SOUND_STEREO:
378 t |= TDA9840_STEREO;
379 break;
380 case VIDEO_SOUND_LANG1:
381 t |= TDA9840_DUALA;
382 break;
383 case VIDEO_SOUND_LANG2:
384 t |= TDA9840_DUALB;
385 break;
386 default:
387 update = 0;
388 }
389
390 if (update)
391 chip_write(chip, TDA9840_SW, t);
392 }
393
394 /* ---------------------------------------------------------------------- */
395 /* audio chip descriptions - defines+functions for tda985x */
396
397 /* subaddresses for TDA9855 */
398 #define TDA9855_VR 0x00 /* Volume, right */
399 #define TDA9855_VL 0x01 /* Volume, left */
400 #define TDA9855_BA 0x02 /* Bass */
401 #define TDA9855_TR 0x03 /* Treble */
402 #define TDA9855_SW 0x04 /* Subwoofer - not connected on DTV2000 */
403
404 /* subaddresses for TDA9850 */
405 #define TDA9850_C4 0x04 /* Control 1 for TDA9850 */
406
407 /* subaddesses for both chips */
408 #define TDA985x_C5 0x05 /* Control 2 for TDA9850, Control 1 for TDA9855 */
409 #define TDA985x_C6 0x06 /* Control 3 for TDA9850, Control 2 for TDA9855 */
410 #define TDA985x_C7 0x07 /* Control 4 for TDA9850, Control 3 for TDA9855 */
411 #define TDA985x_A1 0x08 /* Alignment 1 for both chips */
412 #define TDA985x_A2 0x09 /* Alignment 2 for both chips */
413 #define TDA985x_A3 0x0a /* Alignment 3 for both chips */
414
415 /* Masks for bits in TDA9855 subaddresses */
416 /* 0x00 - VR in TDA9855 */
417 /* 0x01 - VL in TDA9855 */
418 /* lower 7 bits control gain from -71dB (0x28) to 16dB (0x7f)
419 * in 1dB steps - mute is 0x27 */
420
421
422 /* 0x02 - BA in TDA9855 */
423 /* lower 5 bits control bass gain from -12dB (0x06) to 16.5dB (0x19)
424 * in .5dB steps - 0 is 0x0E */
425
426
427 /* 0x03 - TR in TDA9855 */
428 /* 4 bits << 1 control treble gain from -12dB (0x3) to 12dB (0xb)
429 * in 3dB steps - 0 is 0x7 */
430
431 /* Masks for bits in both chips' subaddresses */
432 /* 0x04 - SW in TDA9855, C4/Control 1 in TDA9850 */
433 /* Unique to TDA9855: */
434 /* 4 bits << 2 control subwoofer/surround gain from -14db (0x1) to 14db (0xf)
435 * in 3dB steps - mute is 0x0 */
436
437 /* Unique to TDA9850: */
438 /* lower 4 bits control stereo noise threshold, over which stereo turns off
439 * set to values of 0x00 through 0x0f for Ster1 through Ster16 */
440
441
442 /* 0x05 - C5 - Control 1 in TDA9855 , Control 2 in TDA9850*/
443 /* Unique to TDA9855: */
444 #define TDA9855_MUTE 1<<7 /* GMU, Mute at outputs */
445 #define TDA9855_AVL 1<<6 /* AVL, Automatic Volume Level */
446 #define TDA9855_LOUD 1<<5 /* Loudness, 1==off */
447 #define TDA9855_SUR 1<<3 /* Surround / Subwoofer 1==.5(L-R) 0==.5(L+R) */
448 /* Bits 0 to 3 select various combinations
449 * of line in and line out, only the
450 * interesting ones are defined */
451 #define TDA9855_EXT 1<<2 /* Selects inputs LIR and LIL. Pins 41 & 12 */
452 #define TDA9855_INT 0 /* Selects inputs LOR and LOL. (internal) */
453
454 /* Unique to TDA9850: */
455 /* lower 4 bits contol SAP noise threshold, over which SAP turns off
456 * set to values of 0x00 through 0x0f for SAP1 through SAP16 */
457
458
459 /* 0x06 - C6 - Control 2 in TDA9855, Control 3 in TDA9850 */
460 /* Common to TDA9855 and TDA9850: */
461 #define TDA985x_SAP 3<<6 /* Selects SAP output, mute if not received */
462 #define TDA985x_STEREO 1<<6 /* Selects Stereo ouput, mono if not received */
463 #define TDA985x_MONO 0 /* Forces Mono output */
464 #define TDA985x_LMU 1<<3 /* Mute (LOR/LOL for 9855, OUTL/OUTR for 9850) */
465
466 /* Unique to TDA9855: */
467 #define TDA9855_TZCM 1<<5 /* If set, don't mute till zero crossing */
468 #define TDA9855_VZCM 1<<4 /* If set, don't change volume till zero crossing*/
469 #define TDA9855_LINEAR 0 /* Linear Stereo */
470 #define TDA9855_PSEUDO 1 /* Pseudo Stereo */
471 #define TDA9855_SPAT_30 2 /* Spatial Stereo, 30% anti-phase crosstalk */
472 #define TDA9855_SPAT_50 3 /* Spatial Stereo, 52% anti-phase crosstalk */
473 #define TDA9855_E_MONO 7 /* Forced mono - mono select elseware, so useless*/
474
475 /* 0x07 - C7 - Control 3 in TDA9855, Control 4 in TDA9850 */
476 /* Common to both TDA9855 and TDA9850: */
477 /* lower 4 bits control input gain from -3.5dB (0x0) to 4dB (0xF)
478 * in .5dB steps - 0dB is 0x7 */
479
480 /* 0x08, 0x09 - A1 and A2 (read/write) */
481 /* Common to both TDA9855 and TDA9850: */
482 /* lower 5 bites are wideband and spectral expander alignment
483 * from 0x00 to 0x1f - nominal at 0x0f and 0x10 (read/write) */
484 #define TDA985x_STP 1<<5 /* Stereo Pilot/detect (read-only) */
485 #define TDA985x_SAPP 1<<6 /* SAP Pilot/detect (read-only) */
486 #define TDA985x_STS 1<<7 /* Stereo trigger 1= <35mV 0= <30mV (write-only)*/
487
488 /* 0x0a - A3 */
489 /* Common to both TDA9855 and TDA9850: */
490 /* lower 3 bits control timing current for alignment: -30% (0x0), -20% (0x1),
491 * -10% (0x2), nominal (0x3), +10% (0x6), +20% (0x5), +30% (0x4) */
492 #define TDA985x_ADJ 1<<7 /* Stereo adjust on/off (wideband and spectral */
493
494 static int tda9855_volume(int val) { return val/0x2e8+0x27; }
495 static int tda9855_bass(int val) { return val/0xccc+0x06; }
496 static int tda9855_treble(int val) { return (val/0x1c71+0x3)<<1; }
497
498 static int tda985x_getmode(struct CHIPSTATE *chip)
499 {
500 int mode;
501
502 mode = ((TDA985x_STP | TDA985x_SAPP) &
503 chip_read(chip)) >> 4;
504 /* Add mono mode regardless of SAP and stereo */
505 /* Allows forced mono */
506 return mode | VIDEO_SOUND_MONO;
507 }
508
509 static void tda985x_setmode(struct CHIPSTATE *chip, int mode)
510 {
511 int update = 1;
512 int c6 = chip->shadow.bytes[TDA985x_C6+1] & 0x3f;
513
514 switch (mode) {
515 case VIDEO_SOUND_MONO:
516 c6 |= TDA985x_MONO;
517 break;
518 case VIDEO_SOUND_STEREO:
519 c6 |= TDA985x_STEREO;
520 break;
521 case VIDEO_SOUND_LANG1:
522 c6 |= TDA985x_SAP;
523 break;
524 default:
525 update = 0;
526 }
527 if (update)
528 chip_write(chip,TDA985x_C6,c6);
529 }
530
531
532 /* ---------------------------------------------------------------------- */
533 /* audio chip descriptions - defines+functions for tda9873h */
534
535 /* Subaddresses for TDA9873H */
536
537 #define TDA9873_SW 0x00 /* Switching */
538 #define TDA9873_AD 0x01 /* Adjust */
539 #define TDA9873_PT 0x02 /* Port */
540
541 /* Subaddress 0x00: Switching Data
542 * B7..B0:
543 *
544 * B1, B0: Input source selection
545 * 0, 0 internal
546 * 1, 0 external stereo
547 * 0, 1 external mono
548 */
549 #define TDA9873_INP_MASK 3
550 #define TDA9873_INTERNAL 0
551 #define TDA9873_EXT_STEREO 2
552 #define TDA9873_EXT_MONO 1
553
554 /* B3, B2: output signal select
555 * B4 : transmission mode
556 * 0, 0, 1 Mono
557 * 1, 0, 0 Stereo
558 * 1, 1, 1 Stereo (reversed channel)
559 * 0, 0, 0 Dual AB
560 * 0, 0, 1 Dual AA
561 * 0, 1, 0 Dual BB
562 * 0, 1, 1 Dual BA
563 */
564
565 #define TDA9873_TR_MASK (7 << 2)
566 #define TDA9873_TR_MONO 4
567 #define TDA9873_TR_STEREO 1 << 4
568 #define TDA9873_TR_REVERSE (1 << 3) & (1 << 2)
569 #define TDA9873_TR_DUALA 1 << 2
570 #define TDA9873_TR_DUALB 1 << 3
571
572 /* output level controls
573 * B5: output level switch (0 = reduced gain, 1 = normal gain)
574 * B6: mute (1 = muted)
575 * B7: auto-mute (1 = auto-mute enabled)
576 */
577
578 #define TDA9873_GAIN_NORMAL 1 << 5
579 #define TDA9873_MUTE 1 << 6
580 #define TDA9873_AUTOMUTE 1 << 7
581
582 /* Subaddress 0x01: Adjust/standard */
583
584 /* Lower 4 bits (C3..C0) control stereo adjustment on R channel (-0.6 - +0.7 dB)
585 * Recommended value is +0 dB
586 */
587
588 #define TDA9873_STEREO_ADJ 0x06 /* 0dB gain */
589
590 /* Bits C6..C4 control FM stantard
591 * C6, C5, C4
592 * 0, 0, 0 B/G (PAL FM)
593 * 0, 0, 1 M
594 * 0, 1, 0 D/K(1)
595 * 0, 1, 1 D/K(2)
596 * 1, 0, 0 D/K(3)
597 * 1, 0, 1 I
598 */
599 #define TDA9873_BG 0
600 #define TDA9873_M 1
601 #define TDA9873_DK1 2
602 #define TDA9873_DK2 3
603 #define TDA9873_DK3 4
604 #define TDA9873_I 5
605
606 /* C7 controls identification response time (1=fast/0=normal)
607 */
608 #define TDA9873_IDR_NORM 0
609 #define TDA9873_IDR_FAST 1 << 7
610
611
612 /* Subaddress 0x02: Port data */
613
614 /* E1, E0 free programmable ports P1/P2
615 0, 0 both ports low
616 0, 1 P1 high
617 1, 0 P2 high
618 1, 1 both ports high
619 */
620
621 #define TDA9873_PORTS 3
622
623 /* E2: test port */
624 #define TDA9873_TST_PORT 1 << 2
625
626 /* E5..E3 control mono output channel (together with transmission mode bit B4)
627 *
628 * E5 E4 E3 B4 OUTM
629 * 0 0 0 0 mono
630 * 0 0 1 0 DUAL B
631 * 0 1 0 1 mono (from stereo decoder)
632 */
633 #define TDA9873_MOUT_MONO 0
634 #define TDA9873_MOUT_FMONO 0
635 #define TDA9873_MOUT_DUALA 0
636 #define TDA9873_MOUT_DUALB 1 << 3
637 #define TDA9873_MOUT_ST 1 << 4
638 #define TDA9873_MOUT_EXTM (1 << 4 ) & (1 << 3)
639 #define TDA9873_MOUT_EXTL 1 << 5
640 #define TDA9873_MOUT_EXTR (1 << 5 ) & (1 << 3)
641 #define TDA9873_MOUT_EXTLR (1 << 5 ) & (1 << 4)
642 #define TDA9873_MOUT_MUTE (1 << 5 ) & (1 << 4) & (1 << 3)
643
644 /* Status bits: (chip read) */
645 #define TDA9873_PONR 0 /* Power-on reset detected if = 1 */
646 #define TDA9873_STEREO 2 /* Stereo sound is identified */
647 #define TDA9873_DUAL 4 /* Dual sound is identified */
648
649 static int tda9873_getmode(struct CHIPSTATE *chip)
650 {
651 int val,mode;
652
653 val = chip_read(chip);
654 mode = VIDEO_SOUND_MONO;
655 if (val & TDA9873_STEREO)
656 mode |= VIDEO_SOUND_STEREO;
657 if (val & TDA9873_DUAL)
658 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
659 dprintk ("tda9873_getmode(): raw chip read: %d, return: %d\n",
660 val, mode);
661 return mode;
662 }
663
664 static void tda9873_setmode(struct CHIPSTATE *chip, int mode)
665 {
666 int sw_data = chip->shadow.bytes[TDA9873_SW+1] & ~ TDA9873_TR_MASK;
667 /* int adj_data = chip->shadow.bytes[TDA9873_AD+1] ; */
668
669 if ((sw_data & TDA9873_INP_MASK) != TDA9873_INTERNAL) {
670 dprintk("tda9873_setmode(): external input\n");
671 return;
672 }
673
674 dprintk("tda9873_setmode(): chip->shadow.bytes[%d] = %d\n", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]);
675 dprintk("tda9873_setmode(): sw_data = %d\n", sw_data);
676
677 switch (mode) {
678 case VIDEO_SOUND_MONO:
679 sw_data |= TDA9873_TR_MONO;
680 break;
681 case VIDEO_SOUND_STEREO:
682 sw_data |= TDA9873_TR_STEREO;
683 break;
684 case VIDEO_SOUND_LANG1:
685 sw_data |= TDA9873_TR_DUALA;
686 break;
687 case VIDEO_SOUND_LANG2:
688 sw_data |= TDA9873_TR_DUALB;
689 break;
690 default:
691 chip->mode = 0;
692 return;
693 }
694
695 chip_write(chip, TDA9873_SW, sw_data);
696 dprintk("tda9873_setmode(): req. mode %d; chip_write: %d\n",
697 mode, sw_data);
698 }
699
700 static int tda9873_checkit(struct CHIPSTATE *chip)
701 {
702 int rc;
703
704 if (-1 == (rc = chip_read2(chip,254)))
705 return 0;
706 return (rc & ~0x1f) == 0x80;
707 }
708
709
710 /* ---------------------------------------------------------------------- */
711 /* audio chip description - defines+functions for tda9874h and tda9874a */
712 /* Dariusz Kowalewski <darekk@automex.pl> */
713
714 /* Subaddresses for TDA9874H and TDA9874A (slave rx) */
715 #define TDA9874A_AGCGR 0x00 /* AGC gain */
716 #define TDA9874A_GCONR 0x01 /* general config */
717 #define TDA9874A_MSR 0x02 /* monitor select */
718 #define TDA9874A_C1FRA 0x03 /* carrier 1 freq. */
719 #define TDA9874A_C1FRB 0x04 /* carrier 1 freq. */
720 #define TDA9874A_C1FRC 0x05 /* carrier 1 freq. */
721 #define TDA9874A_C2FRA 0x06 /* carrier 2 freq. */
722 #define TDA9874A_C2FRB 0x07 /* carrier 2 freq. */
723 #define TDA9874A_C2FRC 0x08 /* carrier 2 freq. */
724 #define TDA9874A_DCR 0x09 /* demodulator config */
725 #define TDA9874A_FMER 0x0a /* FM de-emphasis */
726 #define TDA9874A_FMMR 0x0b /* FM dematrix */
727 #define TDA9874A_C1OLAR 0x0c /* ch.1 output level adj. */
728 #define TDA9874A_C2OLAR 0x0d /* ch.2 output level adj. */
729 #define TDA9874A_NCONR 0x0e /* NICAM config */
730 #define TDA9874A_NOLAR 0x0f /* NICAM output level adj. */
731 #define TDA9874A_NLELR 0x10 /* NICAM lower error limit */
732 #define TDA9874A_NUELR 0x11 /* NICAM upper error limit */
733 #define TDA9874A_AMCONR 0x12 /* audio mute control */
734 #define TDA9874A_SDACOSR 0x13 /* stereo DAC output select */
735 #define TDA9874A_AOSR 0x14 /* analog output select */
736 #define TDA9874A_DAICONR 0x15 /* digital audio interface config */
737 #define TDA9874A_I2SOSR 0x16 /* I2S-bus output select */
738 #define TDA9874A_I2SOLAR 0x17 /* I2S-bus output level adj. */
739 #define TDA9874A_MDACOSR 0x18 /* mono DAC output select (tda9874a) */
740 #define TDA9874A_ESP 0xFF /* easy standard progr. (tda9874a) */
741
742 /* Subaddresses for TDA9874H and TDA9874A (slave tx) */
743 #define TDA9874A_DSR 0x00 /* device status */
744 #define TDA9874A_NSR 0x01 /* NICAM status */
745 #define TDA9874A_NECR 0x02 /* NICAM error count */
746 #define TDA9874A_DR1 0x03 /* add. data LSB */
747 #define TDA9874A_DR2 0x04 /* add. data MSB */
748 #define TDA9874A_LLRA 0x05 /* monitor level read-out LSB */
749 #define TDA9874A_LLRB 0x06 /* monitor level read-out MSB */
750 #define TDA9874A_SIFLR 0x07 /* SIF level */
751 #define TDA9874A_TR2 252 /* test reg. 2 */
752 #define TDA9874A_TR1 253 /* test reg. 1 */
753 #define TDA9874A_DIC 254 /* device id. code */
754 #define TDA9874A_SIC 255 /* software id. code */
755
756
757 static int tda9874a_mode = 1; /* 0: A2, 1: NICAM */
758 static int tda9874a_GCONR = 0xc0; /* default config. input pin: SIFSEL=0 */
759 static int tda9874a_NCONR = 0x01; /* default NICAM config.: AMSEL=0,AMUTE=1 */
760 static int tda9874a_ESP = 0x07; /* default standard: NICAM D/K */
761 static int tda9874a_dic = -1; /* device id. code */
762
763 /* insmod options for tda9874a */
764 static unsigned int tda9874a_SIF = UNSET;
765 static unsigned int tda9874a_AMSEL = UNSET;
766 static unsigned int tda9874a_STD = UNSET;
767 module_param(tda9874a_SIF, int, 0444);
768 module_param(tda9874a_AMSEL, int, 0444);
769 module_param(tda9874a_STD, int, 0444);
770
771 /*
772 * initialization table for tda9874 decoder:
773 * - carrier 1 freq. registers (3 bytes)
774 * - carrier 2 freq. registers (3 bytes)
775 * - demudulator config register
776 * - FM de-emphasis register (slow identification mode)
777 * Note: frequency registers must be written in single i2c transfer.
778 */
779 static struct tda9874a_MODES {
780 char *name;
781 audiocmd cmd;
782 } tda9874a_modelist[9] = {
783 { "A2, B/G",
784 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x77,0xA0,0x00, 0x00,0x00 }} },
785 { "A2, M (Korea)",
786 { 9, { TDA9874A_C1FRA, 0x5D,0xC0,0x00, 0x62,0x6A,0xAA, 0x20,0x22 }} },
787 { "A2, D/K (1)",
788 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x82,0x60,0x00, 0x00,0x00 }} },
789 { "A2, D/K (2)",
790 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x8C,0x75,0x55, 0x00,0x00 }} },
791 { "A2, D/K (3)",
792 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x77,0xA0,0x00, 0x00,0x00 }} },
793 { "NICAM, I",
794 { 9, { TDA9874A_C1FRA, 0x7D,0x00,0x00, 0x88,0x8A,0xAA, 0x08,0x33 }} },
795 { "NICAM, B/G",
796 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x79,0xEA,0xAA, 0x08,0x33 }} },
797 { "NICAM, D/K", /* default */
798 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x08,0x33 }} },
799 { "NICAM, L",
800 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x09,0x33 }} }
801 };
802
803 static int tda9874a_setup(struct CHIPSTATE *chip)
804 {
805 chip_write(chip, TDA9874A_AGCGR, 0x00); /* 0 dB */
806 chip_write(chip, TDA9874A_GCONR, tda9874a_GCONR);
807 chip_write(chip, TDA9874A_MSR, (tda9874a_mode) ? 0x03:0x02);
808 if(tda9874a_dic == 0x11) {
809 chip_write(chip, TDA9874A_FMMR, 0x80);
810 } else { /* dic == 0x07 */
811 chip_cmd(chip,"tda9874_modelist",&tda9874a_modelist[tda9874a_STD].cmd);
812 chip_write(chip, TDA9874A_FMMR, 0x00);
813 }
814 chip_write(chip, TDA9874A_C1OLAR, 0x00); /* 0 dB */
815 chip_write(chip, TDA9874A_C2OLAR, 0x00); /* 0 dB */
816 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
817 chip_write(chip, TDA9874A_NOLAR, 0x00); /* 0 dB */
818 /* Note: If signal quality is poor you may want to change NICAM */
819 /* error limit registers (NLELR and NUELR) to some greater values. */
820 /* Then the sound would remain stereo, but won't be so clear. */
821 chip_write(chip, TDA9874A_NLELR, 0x14); /* default */
822 chip_write(chip, TDA9874A_NUELR, 0x50); /* default */
823
824 if(tda9874a_dic == 0x11) {
825 chip_write(chip, TDA9874A_AMCONR, 0xf9);
826 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
827 chip_write(chip, TDA9874A_AOSR, 0x80);
828 chip_write(chip, TDA9874A_MDACOSR, (tda9874a_mode) ? 0x82:0x80);
829 chip_write(chip, TDA9874A_ESP, tda9874a_ESP);
830 } else { /* dic == 0x07 */
831 chip_write(chip, TDA9874A_AMCONR, 0xfb);
832 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
833 chip_write(chip, TDA9874A_AOSR, 0x00); // or 0x10
834 }
835 dprintk("tda9874a_setup(): %s [0x%02X].\n",
836 tda9874a_modelist[tda9874a_STD].name,tda9874a_STD);
837 return 1;
838 }
839
840 static int tda9874a_getmode(struct CHIPSTATE *chip)
841 {
842 int dsr,nsr,mode;
843 int necr; /* just for debugging */
844
845 mode = VIDEO_SOUND_MONO;
846
847 if(-1 == (dsr = chip_read2(chip,TDA9874A_DSR)))
848 return mode;
849 if(-1 == (nsr = chip_read2(chip,TDA9874A_NSR)))
850 return mode;
851 if(-1 == (necr = chip_read2(chip,TDA9874A_NECR)))
852 return mode;
853
854 /* need to store dsr/nsr somewhere */
855 chip->shadow.bytes[MAXREGS-2] = dsr;
856 chip->shadow.bytes[MAXREGS-1] = nsr;
857
858 if(tda9874a_mode) {
859 /* Note: DSR.RSSF and DSR.AMSTAT bits are also checked.
860 * If NICAM auto-muting is enabled, DSR.AMSTAT=1 indicates
861 * that sound has (temporarily) switched from NICAM to
862 * mono FM (or AM) on 1st sound carrier due to high NICAM bit
863 * error count. So in fact there is no stereo in this case :-(
864 * But changing the mode to VIDEO_SOUND_MONO would switch
865 * external 4052 multiplexer in audio_hook().
866 */
867 if(nsr & 0x02) /* NSR.S/MB=1 */
868 mode |= VIDEO_SOUND_STEREO;
869 if(nsr & 0x01) /* NSR.D/SB=1 */
870 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
871 } else {
872 if(dsr & 0x02) /* DSR.IDSTE=1 */
873 mode |= VIDEO_SOUND_STEREO;
874 if(dsr & 0x04) /* DSR.IDDUA=1 */
875 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
876 }
877
878 dprintk("tda9874a_getmode(): DSR=0x%X, NSR=0x%X, NECR=0x%X, return: %d.\n",
879 dsr, nsr, necr, mode);
880 return mode;
881 }
882
883 static void tda9874a_setmode(struct CHIPSTATE *chip, int mode)
884 {
885 /* Disable/enable NICAM auto-muting (based on DSR.RSSF status bit). */
886 /* If auto-muting is disabled, we can hear a signal of degrading quality. */
887 if(tda9874a_mode) {
888 if(chip->shadow.bytes[MAXREGS-2] & 0x20) /* DSR.RSSF=1 */
889 tda9874a_NCONR &= 0xfe; /* enable */
890 else
891 tda9874a_NCONR |= 0x01; /* disable */
892 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
893 }
894
895 /* Note: TDA9874A supports automatic FM dematrixing (FMMR register)
896 * and has auto-select function for audio output (AOSR register).
897 * Old TDA9874H doesn't support these features.
898 * TDA9874A also has additional mono output pin (OUTM), which
899 * on same (all?) tv-cards is not used, anyway (as well as MONOIN).
900 */
901 if(tda9874a_dic == 0x11) {
902 int aosr = 0x80;
903 int mdacosr = (tda9874a_mode) ? 0x82:0x80;
904
905 switch(mode) {
906 case VIDEO_SOUND_MONO:
907 case VIDEO_SOUND_STEREO:
908 break;
909 case VIDEO_SOUND_LANG1:
910 aosr = 0x80; /* auto-select, dual A/A */
911 mdacosr = (tda9874a_mode) ? 0x82:0x80;
912 break;
913 case VIDEO_SOUND_LANG2:
914 aosr = 0xa0; /* auto-select, dual B/B */
915 mdacosr = (tda9874a_mode) ? 0x83:0x81;
916 break;
917 default:
918 chip->mode = 0;
919 return;
920 }
921 chip_write(chip, TDA9874A_AOSR, aosr);
922 chip_write(chip, TDA9874A_MDACOSR, mdacosr);
923
924 dprintk("tda9874a_setmode(): req. mode %d; AOSR=0x%X, MDACOSR=0x%X.\n",
925 mode, aosr, mdacosr);
926
927 } else { /* dic == 0x07 */
928 int fmmr,aosr;
929
930 switch(mode) {
931 case VIDEO_SOUND_MONO:
932 fmmr = 0x00; /* mono */
933 aosr = 0x10; /* A/A */
934 break;
935 case VIDEO_SOUND_STEREO:
936 if(tda9874a_mode) {
937 fmmr = 0x00;
938 aosr = 0x00; /* handled by NICAM auto-mute */
939 } else {
940 fmmr = (tda9874a_ESP == 1) ? 0x05 : 0x04; /* stereo */
941 aosr = 0x00;
942 }
943 break;
944 case VIDEO_SOUND_LANG1:
945 fmmr = 0x02; /* dual */
946 aosr = 0x10; /* dual A/A */
947 break;
948 case VIDEO_SOUND_LANG2:
949 fmmr = 0x02; /* dual */
950 aosr = 0x20; /* dual B/B */
951 break;
952 default:
953 chip->mode = 0;
954 return;
955 }
956 chip_write(chip, TDA9874A_FMMR, fmmr);
957 chip_write(chip, TDA9874A_AOSR, aosr);
958
959 dprintk("tda9874a_setmode(): req. mode %d; FMMR=0x%X, AOSR=0x%X.\n",
960 mode, fmmr, aosr);
961 }
962 }
963
964 static int tda9874a_checkit(struct CHIPSTATE *chip)
965 {
966 int dic,sic; /* device id. and software id. codes */
967
968 if(-1 == (dic = chip_read2(chip,TDA9874A_DIC)))
969 return 0;
970 if(-1 == (sic = chip_read2(chip,TDA9874A_SIC)))
971 return 0;
972
973 dprintk("tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", dic, sic);
974
975 if((dic == 0x11)||(dic == 0x07)) {
976 printk("tvaudio: found tda9874%s.\n", (dic == 0x11) ? "a":"h");
977 tda9874a_dic = dic; /* remember device id. */
978 return 1;
979 }
980 return 0; /* not found */
981 }
982
983 static int tda9874a_initialize(struct CHIPSTATE *chip)
984 {
985 if (tda9874a_SIF > 2)
986 tda9874a_SIF = 1;
987 if (tda9874a_STD > 8)
988 tda9874a_STD = 0;
989 if(tda9874a_AMSEL > 1)
990 tda9874a_AMSEL = 0;
991
992 if(tda9874a_SIF == 1)
993 tda9874a_GCONR = 0xc0; /* sound IF input 1 */
994 else
995 tda9874a_GCONR = 0xc1; /* sound IF input 2 */
996
997 tda9874a_ESP = tda9874a_STD;
998 tda9874a_mode = (tda9874a_STD < 5) ? 0 : 1;
999
1000 if(tda9874a_AMSEL == 0)
1001 tda9874a_NCONR = 0x01; /* auto-mute: analog mono input */
1002 else
1003 tda9874a_NCONR = 0x05; /* auto-mute: 1st carrier FM or AM */
1004
1005 tda9874a_setup(chip);
1006 return 0;
1007 }
1008
1009
1010 /* ---------------------------------------------------------------------- */
1011 /* audio chip descriptions - defines+functions for tea6420 */
1012
1013 #define TEA6300_VL 0x00 /* volume left */
1014 #define TEA6300_VR 0x01 /* volume right */
1015 #define TEA6300_BA 0x02 /* bass */
1016 #define TEA6300_TR 0x03 /* treble */
1017 #define TEA6300_FA 0x04 /* fader control */
1018 #define TEA6300_S 0x05 /* switch register */
1019 /* values for those registers: */
1020 #define TEA6300_S_SA 0x01 /* stereo A input */
1021 #define TEA6300_S_SB 0x02 /* stereo B */
1022 #define TEA6300_S_SC 0x04 /* stereo C */
1023 #define TEA6300_S_GMU 0x80 /* general mute */
1024
1025 #define TEA6320_V 0x00 /* volume (0-5)/loudness off (6)/zero crossing mute(7) */
1026 #define TEA6320_FFR 0x01 /* fader front right (0-5) */
1027 #define TEA6320_FFL 0x02 /* fader front left (0-5) */
1028 #define TEA6320_FRR 0x03 /* fader rear right (0-5) */
1029 #define TEA6320_FRL 0x04 /* fader rear left (0-5) */
1030 #define TEA6320_BA 0x05 /* bass (0-4) */
1031 #define TEA6320_TR 0x06 /* treble (0-4) */
1032 #define TEA6320_S 0x07 /* switch register */
1033 /* values for those registers: */
1034 #define TEA6320_S_SA 0x07 /* stereo A input */
1035 #define TEA6320_S_SB 0x06 /* stereo B */
1036 #define TEA6320_S_SC 0x05 /* stereo C */
1037 #define TEA6320_S_SD 0x04 /* stereo D */
1038 #define TEA6320_S_GMU 0x80 /* general mute */
1039
1040 #define TEA6420_S_SA 0x00 /* stereo A input */
1041 #define TEA6420_S_SB 0x01 /* stereo B */
1042 #define TEA6420_S_SC 0x02 /* stereo C */
1043 #define TEA6420_S_SD 0x03 /* stereo D */
1044 #define TEA6420_S_SE 0x04 /* stereo E */
1045 #define TEA6420_S_GMU 0x05 /* general mute */
1046
1047 static int tea6300_shift10(int val) { return val >> 10; }
1048 static int tea6300_shift12(int val) { return val >> 12; }
1049
1050 /* Assumes 16bit input (values 0x3f to 0x0c are unique, values less than */
1051 /* 0x0c mirror those immediately higher) */
1052 static int tea6320_volume(int val) { return (val / (65535/(63-12)) + 12) & 0x3f; }
1053 static int tea6320_shift11(int val) { return val >> 11; }
1054 static int tea6320_initialize(struct CHIPSTATE * chip)
1055 {
1056 chip_write(chip, TEA6320_FFR, 0x3f);
1057 chip_write(chip, TEA6320_FFL, 0x3f);
1058 chip_write(chip, TEA6320_FRR, 0x3f);
1059 chip_write(chip, TEA6320_FRL, 0x3f);
1060
1061 return 0;
1062 }
1063
1064
1065 /* ---------------------------------------------------------------------- */
1066 /* audio chip descriptions - defines+functions for tda8425 */
1067
1068 #define TDA8425_VL 0x00 /* volume left */
1069 #define TDA8425_VR 0x01 /* volume right */
1070 #define TDA8425_BA 0x02 /* bass */
1071 #define TDA8425_TR 0x03 /* treble */
1072 #define TDA8425_S1 0x08 /* switch functions */
1073 /* values for those registers: */
1074 #define TDA8425_S1_OFF 0xEE /* audio off (mute on) */
1075 #define TDA8425_S1_CH1 0xCE /* audio channel 1 (mute off) - "linear stereo" mode */
1076 #define TDA8425_S1_CH2 0xCF /* audio channel 2 (mute off) - "linear stereo" mode */
1077 #define TDA8425_S1_MU 0x20 /* mute bit */
1078 #define TDA8425_S1_STEREO 0x18 /* stereo bits */
1079 #define TDA8425_S1_STEREO_SPATIAL 0x18 /* spatial stereo */
1080 #define TDA8425_S1_STEREO_LINEAR 0x08 /* linear stereo */
1081 #define TDA8425_S1_STEREO_PSEUDO 0x10 /* pseudo stereo */
1082 #define TDA8425_S1_STEREO_MONO 0x00 /* forced mono */
1083 #define TDA8425_S1_ML 0x06 /* language selector */
1084 #define TDA8425_S1_ML_SOUND_A 0x02 /* sound a */
1085 #define TDA8425_S1_ML_SOUND_B 0x04 /* sound b */
1086 #define TDA8425_S1_ML_STEREO 0x06 /* stereo */
1087 #define TDA8425_S1_IS 0x01 /* channel selector */
1088
1089
1090 static int tda8425_shift10(int val) { return (val >> 10) | 0xc0; }
1091 static int tda8425_shift12(int val) { return (val >> 12) | 0xf0; }
1092
1093 static int tda8425_initialize(struct CHIPSTATE *chip)
1094 {
1095 struct CHIPDESC *desc = chiplist + chip->type;
1096 int inputmap[8] = { /* tuner */ TDA8425_S1_CH2, /* radio */ TDA8425_S1_CH1,
1097 /* extern */ TDA8425_S1_CH1, /* intern */ TDA8425_S1_OFF,
1098 /* off */ TDA8425_S1_OFF, /* on */ TDA8425_S1_CH2};
1099
1100 if (chip->c.adapter->id == (I2C_ALGO_BIT | I2C_HW_B_RIVA)) {
1101 memcpy (desc->inputmap, inputmap, sizeof (inputmap));
1102 }
1103 return 0;
1104 }
1105
1106 static void tda8425_setmode(struct CHIPSTATE *chip, int mode)
1107 {
1108 int s1 = chip->shadow.bytes[TDA8425_S1+1] & 0xe1;
1109
1110 if (mode & VIDEO_SOUND_LANG1) {
1111 s1 |= TDA8425_S1_ML_SOUND_A;
1112 s1 |= TDA8425_S1_STEREO_PSEUDO;
1113
1114 } else if (mode & VIDEO_SOUND_LANG2) {
1115 s1 |= TDA8425_S1_ML_SOUND_B;
1116 s1 |= TDA8425_S1_STEREO_PSEUDO;
1117
1118 } else {
1119 s1 |= TDA8425_S1_ML_STEREO;
1120
1121 if (mode & VIDEO_SOUND_MONO)
1122 s1 |= TDA8425_S1_STEREO_MONO;
1123 if (mode & VIDEO_SOUND_STEREO)
1124 s1 |= TDA8425_S1_STEREO_SPATIAL;
1125 }
1126 chip_write(chip,TDA8425_S1,s1);
1127 }
1128
1129
1130 /* ---------------------------------------------------------------------- */
1131 /* audio chip descriptions - defines+functions for pic16c54 (PV951) */
1132
1133 /* the registers of 16C54, I2C sub address. */
1134 #define PIC16C54_REG_KEY_CODE 0x01 /* Not use. */
1135 #define PIC16C54_REG_MISC 0x02
1136
1137 /* bit definition of the RESET register, I2C data. */
1138 #define PIC16C54_MISC_RESET_REMOTE_CTL 0x01 /* bit 0, Reset to receive the key */
1139 /* code of remote controller */
1140 #define PIC16C54_MISC_MTS_MAIN 0x02 /* bit 1 */
1141 #define PIC16C54_MISC_MTS_SAP 0x04 /* bit 2 */
1142 #define PIC16C54_MISC_MTS_BOTH 0x08 /* bit 3 */
1143 #define PIC16C54_MISC_SND_MUTE 0x10 /* bit 4, Mute Audio(Line-in and Tuner) */
1144 #define PIC16C54_MISC_SND_NOTMUTE 0x20 /* bit 5 */
1145 #define PIC16C54_MISC_SWITCH_TUNER 0x40 /* bit 6 , Switch to Line-in */
1146 #define PIC16C54_MISC_SWITCH_LINE 0x80 /* bit 7 , Switch to Tuner */
1147
1148 /* ---------------------------------------------------------------------- */
1149 /* audio chip descriptions - defines+functions for TA8874Z */
1150
1151 // write 1st byte
1152 #define TA8874Z_LED_STE 0x80
1153 #define TA8874Z_LED_BIL 0x40
1154 #define TA8874Z_LED_EXT 0x20
1155 #define TA8874Z_MONO_SET 0x10
1156 #define TA8874Z_MUTE 0x08
1157 #define TA8874Z_F_MONO 0x04
1158 #define TA8874Z_MODE_SUB 0x02
1159 #define TA8874Z_MODE_MAIN 0x01
1160
1161 // write 2nd byte
1162 //#define TA8874Z_TI 0x80 // test mode
1163 #define TA8874Z_SEPARATION 0x3f
1164 #define TA8874Z_SEPARATION_DEFAULT 0x10
1165
1166 // read
1167 #define TA8874Z_B1 0x80
1168 #define TA8874Z_B0 0x40
1169 #define TA8874Z_CHAG_FLAG 0x20
1170
1171 // B1 B0
1172 // mono L H
1173 // stereo L L
1174 // BIL H L
1175
1176 static int ta8874z_getmode(struct CHIPSTATE *chip)
1177 {
1178 int val, mode;
1179
1180 val = chip_read(chip);
1181 mode = VIDEO_SOUND_MONO;
1182 if (val & TA8874Z_B1){
1183 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
1184 }else if (!(val & TA8874Z_B0)){
1185 mode |= VIDEO_SOUND_STEREO;
1186 }
1187 //dprintk ("ta8874z_getmode(): raw chip read: 0x%02x, return: 0x%02x\n", val, mode);
1188 return mode;
1189 }
1190
1191 static audiocmd ta8874z_stereo = { 2, {0, TA8874Z_SEPARATION_DEFAULT}};
1192 static audiocmd ta8874z_mono = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}};
1193 static audiocmd ta8874z_main = {2, { 0, TA8874Z_SEPARATION_DEFAULT}};
1194 static audiocmd ta8874z_sub = {2, { TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}};
1195
1196 static void ta8874z_setmode(struct CHIPSTATE *chip, int mode)
1197 {
1198 int update = 1;
1199 audiocmd *t = NULL;
1200 dprintk("ta8874z_setmode(): mode: 0x%02x\n", mode);
1201
1202 switch(mode){
1203 case VIDEO_SOUND_MONO:
1204 t = &ta8874z_mono;
1205 break;
1206 case VIDEO_SOUND_STEREO:
1207 t = &ta8874z_stereo;
1208 break;
1209 case VIDEO_SOUND_LANG1:
1210 t = &ta8874z_main;
1211 break;
1212 case VIDEO_SOUND_LANG2:
1213 t = &ta8874z_sub;
1214 break;
1215 default:
1216 update = 0;
1217 }
1218
1219 if(update)
1220 chip_cmd(chip, "TA8874Z", t);
1221 }
1222
1223 static int ta8874z_checkit(struct CHIPSTATE *chip)
1224 {
1225 int rc;
1226 rc = chip_read(chip);
1227 return ((rc & 0x1f) == 0x1f) ? 1 : 0;
1228 }
1229
1230 /* ---------------------------------------------------------------------- */
1231 /* audio chip descriptions - struct CHIPDESC */
1232
1233 /* insmod options to enable/disable individual audio chips */
1234 static int tda8425 = 1;
1235 static int tda9840 = 1;
1236 static int tda9850 = 1;
1237 static int tda9855 = 1;
1238 static int tda9873 = 1;
1239 static int tda9874a = 1;
1240 static int tea6300 = 0; // address clash with msp34xx
1241 static int tea6320 = 0; // address clash with msp34xx
1242 static int tea6420 = 1;
1243 static int pic16c54 = 1;
1244 static int ta8874z = 0; // address clash with tda9840
1245
1246 module_param(tda8425, int, 0444);
1247 module_param(tda9840, int, 0444);
1248 module_param(tda9850, int, 0444);
1249 module_param(tda9855, int, 0444);
1250 module_param(tda9873, int, 0444);
1251 module_param(tda9874a, int, 0444);
1252 module_param(tea6300, int, 0444);
1253 module_param(tea6320, int, 0444);
1254 module_param(tea6420, int, 0444);
1255 module_param(pic16c54, int, 0444);
1256 module_param(ta8874z, int, 0444);
1257
1258 static struct CHIPDESC chiplist[] = {
1259 {
1260 .name = "tda9840",
1261 .id = I2C_DRIVERID_TDA9840,
1262 .insmodopt = &tda9840,
1263 .addr_lo = I2C_TDA9840 >> 1,
1264 .addr_hi = I2C_TDA9840 >> 1,
1265 .registers = 5,
1266
1267 .getmode = tda9840_getmode,
1268 .setmode = tda9840_setmode,
1269 .checkmode = generic_checkmode,
1270
1271 .init = { 2, { TDA9840_TEST, TDA9840_TEST_INT1SN
1272 /* ,TDA9840_SW, TDA9840_MONO */} }
1273 },
1274 {
1275 .name = "tda9873h",
1276 .id = I2C_DRIVERID_TDA9873,
1277 .checkit = tda9873_checkit,
1278 .insmodopt = &tda9873,
1279 .addr_lo = I2C_TDA985x_L >> 1,
1280 .addr_hi = I2C_TDA985x_H >> 1,
1281 .registers = 3,
1282 .flags = CHIP_HAS_INPUTSEL,
1283
1284 .getmode = tda9873_getmode,
1285 .setmode = tda9873_setmode,
1286 .checkmode = generic_checkmode,
1287
1288 .init = { 4, { TDA9873_SW, 0xa4, 0x06, 0x03 } },
1289 .inputreg = TDA9873_SW,
1290 .inputmute = TDA9873_MUTE | TDA9873_AUTOMUTE,
1291 .inputmap = {0xa0, 0xa2, 0xa0, 0xa0, 0xc0},
1292 .inputmask = TDA9873_INP_MASK|TDA9873_MUTE|TDA9873_AUTOMUTE,
1293
1294 },
1295 {
1296 .name = "tda9874h/a",
1297 .id = I2C_DRIVERID_TDA9874,
1298 .checkit = tda9874a_checkit,
1299 .initialize = tda9874a_initialize,
1300 .insmodopt = &tda9874a,
1301 .addr_lo = I2C_TDA9874 >> 1,
1302 .addr_hi = I2C_TDA9874 >> 1,
1303
1304 .getmode = tda9874a_getmode,
1305 .setmode = tda9874a_setmode,
1306 .checkmode = generic_checkmode,
1307 },
1308 {
1309 .name = "tda9850",
1310 .id = I2C_DRIVERID_TDA9850,
1311 .insmodopt = &tda9850,
1312 .addr_lo = I2C_TDA985x_L >> 1,
1313 .addr_hi = I2C_TDA985x_H >> 1,
1314 .registers = 11,
1315
1316 .getmode = tda985x_getmode,
1317 .setmode = tda985x_setmode,
1318
1319 .init = { 8, { TDA9850_C4, 0x08, 0x08, TDA985x_STEREO, 0x07, 0x10, 0x10, 0x03 } }
1320 },
1321 {
1322 .name = "tda9855",
1323 .id = I2C_DRIVERID_TDA9855,
1324 .insmodopt = &tda9855,
1325 .addr_lo = I2C_TDA985x_L >> 1,
1326 .addr_hi = I2C_TDA985x_H >> 1,
1327 .registers = 11,
1328 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE,
1329
1330 .leftreg = TDA9855_VL,
1331 .rightreg = TDA9855_VR,
1332 .bassreg = TDA9855_BA,
1333 .treblereg = TDA9855_TR,
1334 .volfunc = tda9855_volume,
1335 .bassfunc = tda9855_bass,
1336 .treblefunc = tda9855_treble,
1337
1338 .getmode = tda985x_getmode,
1339 .setmode = tda985x_setmode,
1340
1341 .init = { 12, { 0, 0x6f, 0x6f, 0x0e, 0x07<<1, 0x8<<2,
1342 TDA9855_MUTE | TDA9855_AVL | TDA9855_LOUD | TDA9855_INT,
1343 TDA985x_STEREO | TDA9855_LINEAR | TDA9855_TZCM | TDA9855_VZCM,
1344 0x07, 0x10, 0x10, 0x03 }}
1345 },
1346 {
1347 .name = "tea6300",
1348 .id = I2C_DRIVERID_TEA6300,
1349 .insmodopt = &tea6300,
1350 .addr_lo = I2C_TEA6300 >> 1,
1351 .addr_hi = I2C_TEA6300 >> 1,
1352 .registers = 6,
1353 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1354
1355 .leftreg = TEA6300_VR,
1356 .rightreg = TEA6300_VL,
1357 .bassreg = TEA6300_BA,
1358 .treblereg = TEA6300_TR,
1359 .volfunc = tea6300_shift10,
1360 .bassfunc = tea6300_shift12,
1361 .treblefunc = tea6300_shift12,
1362
1363 .inputreg = TEA6300_S,
1364 .inputmap = { TEA6300_S_SA, TEA6300_S_SB, TEA6300_S_SC },
1365 .inputmute = TEA6300_S_GMU,
1366 },
1367 {
1368 .name = "tea6320",
1369 .id = I2C_DRIVERID_TEA6300,
1370 .initialize = tea6320_initialize,
1371 .insmodopt = &tea6320,
1372 .addr_lo = I2C_TEA6300 >> 1,
1373 .addr_hi = I2C_TEA6300 >> 1,
1374 .registers = 8,
1375 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1376
1377 .leftreg = TEA6320_V,
1378 .rightreg = TEA6320_V,
1379 .bassreg = TEA6320_BA,
1380 .treblereg = TEA6320_TR,
1381 .volfunc = tea6320_volume,
1382 .bassfunc = tea6320_shift11,
1383 .treblefunc = tea6320_shift11,
1384
1385 .inputreg = TEA6320_S,
1386 .inputmap = { TEA6320_S_SA, TEA6420_S_SB, TEA6300_S_SC, TEA6320_S_SD },
1387 .inputmute = TEA6300_S_GMU,
1388 },
1389 {
1390 .name = "tea6420",
1391 .id = I2C_DRIVERID_TEA6420,
1392 .insmodopt = &tea6420,
1393 .addr_lo = I2C_TEA6420 >> 1,
1394 .addr_hi = I2C_TEA6420 >> 1,
1395 .registers = 1,
1396 .flags = CHIP_HAS_INPUTSEL,
1397
1398 .inputreg = -1,
1399 .inputmap = { TEA6420_S_SA, TEA6420_S_SB, TEA6420_S_SC },
1400 .inputmute = TEA6300_S_GMU,
1401 },
1402 {
1403 .name = "tda8425",
1404 .id = I2C_DRIVERID_TDA8425,
1405 .insmodopt = &tda8425,
1406 .addr_lo = I2C_TDA8425 >> 1,
1407 .addr_hi = I2C_TDA8425 >> 1,
1408 .registers = 9,
1409 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1410
1411 .leftreg = TDA8425_VL,
1412 .rightreg = TDA8425_VR,
1413 .bassreg = TDA8425_BA,
1414 .treblereg = TDA8425_TR,
1415 .volfunc = tda8425_shift10,
1416 .bassfunc = tda8425_shift12,
1417 .treblefunc = tda8425_shift12,
1418
1419 .inputreg = TDA8425_S1,
1420 .inputmap = { TDA8425_S1_CH1, TDA8425_S1_CH1, TDA8425_S1_CH1 },
1421 .inputmute = TDA8425_S1_OFF,
1422
1423 .setmode = tda8425_setmode,
1424 .initialize = tda8425_initialize,
1425 },
1426 {
1427 .name = "pic16c54 (PV951)",
1428 .id = I2C_DRIVERID_PIC16C54_PV951,
1429 .insmodopt = &pic16c54,
1430 .addr_lo = I2C_PIC16C54 >> 1,
1431 .addr_hi = I2C_PIC16C54>> 1,
1432 .registers = 2,
1433 .flags = CHIP_HAS_INPUTSEL,
1434
1435 .inputreg = PIC16C54_REG_MISC,
1436 .inputmap = {PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_TUNER,
1437 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1438 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1439 PIC16C54_MISC_SND_MUTE,PIC16C54_MISC_SND_MUTE,
1440 PIC16C54_MISC_SND_NOTMUTE},
1441 .inputmute = PIC16C54_MISC_SND_MUTE,
1442 },
1443 {
1444 .name = "ta8874z",
1445 .id = -1,
1446 //.id = I2C_DRIVERID_TA8874Z,
1447 .checkit = ta8874z_checkit,
1448 .insmodopt = &ta8874z,
1449 .addr_lo = I2C_TDA9840 >> 1,
1450 .addr_hi = I2C_TDA9840 >> 1,
1451 .registers = 2,
1452
1453 .getmode = ta8874z_getmode,
1454 .setmode = ta8874z_setmode,
1455 .checkmode = generic_checkmode,
1456
1457 .init = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}},
1458 },
1459 { .name = NULL } /* EOF */
1460 };
1461
1462
1463 /* ---------------------------------------------------------------------- */
1464 /* i2c registration */
1465
1466 static int chip_attach(struct i2c_adapter *adap, int addr, int kind)
1467 {
1468 struct CHIPSTATE *chip;
1469 struct CHIPDESC *desc;
1470
1471 chip = kmalloc(sizeof(*chip),GFP_KERNEL);
1472 if (!chip)
1473 return -ENOMEM;
1474 memset(chip,0,sizeof(*chip));
1475 memcpy(&chip->c,&client_template,sizeof(struct i2c_client));
1476 chip->c.adapter = adap;
1477 chip->c.addr = addr;
1478 i2c_set_clientdata(&chip->c, chip);
1479
1480 /* find description for the chip */
1481 dprintk("tvaudio: chip found @ i2c-addr=0x%x\n", addr<<1);
1482 for (desc = chiplist; desc->name != NULL; desc++) {
1483 if (0 == *(desc->insmodopt))
1484 continue;
1485 if (addr < desc->addr_lo ||
1486 addr > desc->addr_hi)
1487 continue;
1488 if (desc->checkit && !desc->checkit(chip))
1489 continue;
1490 break;
1491 }
1492 if (desc->name == NULL) {
1493 dprintk("tvaudio: no matching chip description found\n");
1494 return -EIO;
1495 }
1496 printk("tvaudio: found %s @ 0x%x\n", desc->name, addr<<1);
1497 dprintk("tvaudio: matches:%s%s%s.\n",
1498 (desc->flags & CHIP_HAS_VOLUME) ? " volume" : "",
1499 (desc->flags & CHIP_HAS_BASSTREBLE) ? " bass/treble" : "",
1500 (desc->flags & CHIP_HAS_INPUTSEL) ? " audiomux" : "");
1501
1502 /* fill required data structures */
1503 strcpy(i2c_clientname(&chip->c),desc->name);
1504 chip->type = desc-chiplist;
1505 chip->shadow.count = desc->registers+1;
1506 chip->prevmode = -1;
1507 /* register */
1508 i2c_attach_client(&chip->c);
1509
1510 /* initialization */
1511 if (desc->initialize != NULL)
1512 desc->initialize(chip);
1513 else
1514 chip_cmd(chip,"init",&desc->init);
1515
1516 if (desc->flags & CHIP_HAS_VOLUME) {
1517 chip->left = desc->leftinit ? desc->leftinit : 65535;
1518 chip->right = desc->rightinit ? desc->rightinit : 65535;
1519 chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
1520 chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
1521 }
1522 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1523 chip->treble = desc->trebleinit ? desc->trebleinit : 32768;
1524 chip->bass = desc->bassinit ? desc->bassinit : 32768;
1525 chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
1526 chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
1527 }
1528
1529 chip->tpid = -1;
1530 if (desc->checkmode) {
1531 /* start async thread */
1532 init_timer(&chip->wt);
1533 chip->wt.function = chip_thread_wake;
1534 chip->wt.data = (unsigned long)chip;
1535 init_waitqueue_head(&chip->wq);
1536 init_completion(&chip->texit);
1537 chip->tpid = kernel_thread(chip_thread,(void *)chip,0);
1538 if (chip->tpid < 0)
1539 printk(KERN_WARNING "%s: kernel_thread() failed\n",
1540 i2c_clientname(&chip->c));
1541 wake_up_interruptible(&chip->wq);
1542 }
1543 return 0;
1544 }
1545
1546 static int chip_probe(struct i2c_adapter *adap)
1547 {
1548 /* don't attach on saa7146 based cards,
1549 because dedicated drivers are used */
1550 if ((adap->id & I2C_ALGO_SAA7146))
1551 return 0;
1552 #ifdef I2C_CLASS_TV_ANALOG
1553 if (adap->class & I2C_CLASS_TV_ANALOG)
1554 return i2c_probe(adap, &addr_data, chip_attach);
1555 #else
1556 switch (adap->id) {
1557 case I2C_ALGO_BIT | I2C_HW_B_BT848:
1558 case I2C_ALGO_BIT | I2C_HW_B_RIVA:
1559 case I2C_ALGO_SAA7134:
1560 return i2c_probe(adap, &addr_data, chip_attach);
1561 }
1562 #endif
1563 return 0;
1564 }
1565
1566 static int chip_detach(struct i2c_client *client)
1567 {
1568 struct CHIPSTATE *chip = i2c_get_clientdata(client);
1569
1570 del_timer_sync(&chip->wt);
1571 if (chip->tpid >= 0) {
1572 /* shutdown async thread */
1573 chip->done = 1;
1574 wake_up_interruptible(&chip->wq);
1575 wait_for_completion(&chip->texit);
1576 }
1577
1578 i2c_detach_client(&chip->c);
1579 kfree(chip);
1580 return 0;
1581 }
1582
1583 /* ---------------------------------------------------------------------- */
1584 /* video4linux interface */
1585
1586 static int chip_command(struct i2c_client *client,
1587 unsigned int cmd, void *arg)
1588 {
1589 __u16 *sarg = arg;
1590 struct CHIPSTATE *chip = i2c_get_clientdata(client);
1591 struct CHIPDESC *desc = chiplist + chip->type;
1592
1593 dprintk("%s: chip_command 0x%x\n",i2c_clientname(&chip->c),cmd);
1594
1595 switch (cmd) {
1596 case AUDC_SET_INPUT:
1597 if (desc->flags & CHIP_HAS_INPUTSEL) {
1598 if (*sarg & 0x80)
1599 chip_write_masked(chip,desc->inputreg,desc->inputmute,desc->inputmask);
1600 else
1601 chip_write_masked(chip,desc->inputreg,desc->inputmap[*sarg],desc->inputmask);
1602 }
1603 break;
1604
1605 case AUDC_SET_RADIO:
1606 dprintk(KERN_DEBUG "tvaudio: AUDC_SET_RADIO\n");
1607 chip->norm = VIDEO_MODE_RADIO;
1608 chip->watch_stereo = 0;
1609 /* del_timer(&chip->wt); */
1610 break;
1611
1612 /* --- v4l ioctls --- */
1613 /* take care: bttv does userspace copying, we'll get a
1614 kernel pointer here... */
1615 case VIDIOCGAUDIO:
1616 {
1617 struct video_audio *va = arg;
1618
1619 if (desc->flags & CHIP_HAS_VOLUME) {
1620 va->flags |= VIDEO_AUDIO_VOLUME;
1621 va->volume = max(chip->left,chip->right);
1622 if (va->volume)
1623 va->balance = (32768*min(chip->left,chip->right))/
1624 va->volume;
1625 else
1626 va->balance = 32768;
1627 }
1628 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1629 va->flags |= VIDEO_AUDIO_BASS | VIDEO_AUDIO_TREBLE;
1630 va->bass = chip->bass;
1631 va->treble = chip->treble;
1632 }
1633 if (chip->norm != VIDEO_MODE_RADIO) {
1634 if (desc->getmode)
1635 va->mode = desc->getmode(chip);
1636 else
1637 va->mode = VIDEO_SOUND_MONO;
1638 }
1639 break;
1640 }
1641
1642 case VIDIOCSAUDIO:
1643 {
1644 struct video_audio *va = arg;
1645
1646 if (desc->flags & CHIP_HAS_VOLUME) {
1647 chip->left = (min(65536 - va->balance,32768) *
1648 va->volume) / 32768;
1649 chip->right = (min(va->balance,(__u16)32768) *
1650 va->volume) / 32768;
1651 chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
1652 chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
1653 }
1654 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1655 chip->bass = va->bass;
1656 chip->treble = va->treble;
1657 chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
1658 chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
1659 }
1660 if (desc->setmode && va->mode) {
1661 chip->watch_stereo = 0;
1662 /* del_timer(&chip->wt); */
1663 chip->mode = va->mode;
1664 desc->setmode(chip,va->mode);
1665 }
1666 break;
1667 }
1668 case VIDIOCSCHAN:
1669 {
1670 struct video_channel *vc = arg;
1671
1672 dprintk(KERN_DEBUG "tvaudio: VIDIOCSCHAN\n");
1673 chip->norm = vc->norm;
1674 break;
1675 }
1676 case VIDIOCSFREQ:
1677 {
1678 chip->mode = 0; /* automatic */
1679 if (desc->checkmode) {
1680 desc->setmode(chip,VIDEO_SOUND_MONO);
1681 if (chip->prevmode != VIDEO_SOUND_MONO)
1682 chip->prevmode = -1; /* reset previous mode */
1683 mod_timer(&chip->wt, jiffies+2*HZ);
1684 /* the thread will call checkmode() later */
1685 }
1686 }
1687 }
1688 return 0;
1689 }
1690
1691
1692 static struct i2c_driver driver = {
1693 .owner = THIS_MODULE,
1694 .name = "generic i2c audio driver",
1695 .id = I2C_DRIVERID_TVAUDIO,
1696 .flags = I2C_DF_NOTIFY,
1697 .attach_adapter = chip_probe,
1698 .detach_client = chip_detach,
1699 .command = chip_command,
1700 };
1701
1702 static struct i2c_client client_template =
1703 {
1704 I2C_DEVNAME("(unset)"),
1705 .flags = I2C_CLIENT_ALLOW_USE,
1706 .driver = &driver,
1707 };
1708
1709 static int __init audiochip_init_module(void)
1710 {
1711 struct CHIPDESC *desc;
1712 printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux driver\n");
1713 printk(KERN_INFO "tvaudio: known chips: ");
1714 for (desc = chiplist; desc->name != NULL; desc++)
1715 printk("%s%s", (desc == chiplist) ? "" : ",",desc->name);
1716 printk("\n");
1717
1718 return i2c_add_driver(&driver);
1719 }
1720
1721 static void __exit audiochip_cleanup_module(void)
1722 {
1723 i2c_del_driver(&driver);
1724 }
1725
1726 module_init(audiochip_init_module);
1727 module_exit(audiochip_cleanup_module);
1728
1729 /*
1730 * Local variables:
1731 * c-basic-offset: 8
1732 * End:
1733 */
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