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[PATCH] I2C: Kill i2c_algorithm.id (6/7)
[linux-2.6/mini2440.git] / drivers / media / video / tvaudio.c
blobf6aab89593ea98ba2e90eca3084fd2490471aa4f
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 try_to_freeze();
289 if (chip->done || signal_pending(current))
290 break;
291 dprintk("%s: thread wakeup\n", i2c_clientname(&chip->c));
292
293 /* don't do anything for radio or if mode != auto */
294 if (chip->norm == VIDEO_MODE_RADIO || chip->mode != 0)
295 continue;
296
297 /* have a look what's going on */
298 desc->checkmode(chip);
299
300 /* schedule next check */
301 mod_timer(&chip->wt, jiffies+2*HZ);
302 }
303
304 dprintk("%s: thread exiting\n", i2c_clientname(&chip->c));
305 complete_and_exit(&chip->texit, 0);
306 return 0;
307 }
308
309 static void generic_checkmode(struct CHIPSTATE *chip)
310 {
311 struct CHIPDESC *desc = chiplist + chip->type;
312 int mode = desc->getmode(chip);
313
314 if (mode == chip->prevmode)
315 return;
316
317 dprintk("%s: thread checkmode\n", i2c_clientname(&chip->c));
318 chip->prevmode = mode;
319
320 if (mode & VIDEO_SOUND_STEREO)
321 desc->setmode(chip,VIDEO_SOUND_STEREO);
322 else if (mode & VIDEO_SOUND_LANG1)
323 desc->setmode(chip,VIDEO_SOUND_LANG1);
324 else if (mode & VIDEO_SOUND_LANG2)
325 desc->setmode(chip,VIDEO_SOUND_LANG2);
326 else
327 desc->setmode(chip,VIDEO_SOUND_MONO);
328 }
329
330 /* ---------------------------------------------------------------------- */
331 /* audio chip descriptions - defines+functions for tda9840 */
332
333 #define TDA9840_SW 0x00
334 #define TDA9840_LVADJ 0x02
335 #define TDA9840_STADJ 0x03
336 #define TDA9840_TEST 0x04
337
338 #define TDA9840_MONO 0x10
339 #define TDA9840_STEREO 0x2a
340 #define TDA9840_DUALA 0x12
341 #define TDA9840_DUALB 0x1e
342 #define TDA9840_DUALAB 0x1a
343 #define TDA9840_DUALBA 0x16
344 #define TDA9840_EXTERNAL 0x7a
345
346 #define TDA9840_DS_DUAL 0x20 /* Dual sound identified */
347 #define TDA9840_ST_STEREO 0x40 /* Stereo sound identified */
348 #define TDA9840_PONRES 0x80 /* Power-on reset detected if = 1 */
349
350 #define TDA9840_TEST_INT1SN 0x1 /* Integration time 0.5s when set */
351 #define TDA9840_TEST_INTFU 0x02 /* Disables integrator function */
352
353 static int tda9840_getmode(struct CHIPSTATE *chip)
354 {
355 int val, mode;
356
357 val = chip_read(chip);
358 mode = VIDEO_SOUND_MONO;
359 if (val & TDA9840_DS_DUAL)
360 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
361 if (val & TDA9840_ST_STEREO)
362 mode |= VIDEO_SOUND_STEREO;
363
364 dprintk ("tda9840_getmode(): raw chip read: %d, return: %d\n",
365 val, mode);
366 return mode;
367 }
368
369 static void tda9840_setmode(struct CHIPSTATE *chip, int mode)
370 {
371 int update = 1;
372 int t = chip->shadow.bytes[TDA9840_SW + 1] & ~0x7e;
373
374 switch (mode) {
375 case VIDEO_SOUND_MONO:
376 t |= TDA9840_MONO;
377 break;
378 case VIDEO_SOUND_STEREO:
379 t |= TDA9840_STEREO;
380 break;
381 case VIDEO_SOUND_LANG1:
382 t |= TDA9840_DUALA;
383 break;
384 case VIDEO_SOUND_LANG2:
385 t |= TDA9840_DUALB;
386 break;
387 default:
388 update = 0;
389 }
390
391 if (update)
392 chip_write(chip, TDA9840_SW, t);
393 }
394
395 /* ---------------------------------------------------------------------- */
396 /* audio chip descriptions - defines+functions for tda985x */
397
398 /* subaddresses for TDA9855 */
399 #define TDA9855_VR 0x00 /* Volume, right */
400 #define TDA9855_VL 0x01 /* Volume, left */
401 #define TDA9855_BA 0x02 /* Bass */
402 #define TDA9855_TR 0x03 /* Treble */
403 #define TDA9855_SW 0x04 /* Subwoofer - not connected on DTV2000 */
404
405 /* subaddresses for TDA9850 */
406 #define TDA9850_C4 0x04 /* Control 1 for TDA9850 */
407
408 /* subaddesses for both chips */
409 #define TDA985x_C5 0x05 /* Control 2 for TDA9850, Control 1 for TDA9855 */
410 #define TDA985x_C6 0x06 /* Control 3 for TDA9850, Control 2 for TDA9855 */
411 #define TDA985x_C7 0x07 /* Control 4 for TDA9850, Control 3 for TDA9855 */
412 #define TDA985x_A1 0x08 /* Alignment 1 for both chips */
413 #define TDA985x_A2 0x09 /* Alignment 2 for both chips */
414 #define TDA985x_A3 0x0a /* Alignment 3 for both chips */
415
416 /* Masks for bits in TDA9855 subaddresses */
417 /* 0x00 - VR in TDA9855 */
418 /* 0x01 - VL in TDA9855 */
419 /* lower 7 bits control gain from -71dB (0x28) to 16dB (0x7f)
420 * in 1dB steps - mute is 0x27 */
421
422
423 /* 0x02 - BA in TDA9855 */
424 /* lower 5 bits control bass gain from -12dB (0x06) to 16.5dB (0x19)
425 * in .5dB steps - 0 is 0x0E */
426
427
428 /* 0x03 - TR in TDA9855 */
429 /* 4 bits << 1 control treble gain from -12dB (0x3) to 12dB (0xb)
430 * in 3dB steps - 0 is 0x7 */
431
432 /* Masks for bits in both chips' subaddresses */
433 /* 0x04 - SW in TDA9855, C4/Control 1 in TDA9850 */
434 /* Unique to TDA9855: */
435 /* 4 bits << 2 control subwoofer/surround gain from -14db (0x1) to 14db (0xf)
436 * in 3dB steps - mute is 0x0 */
437
438 /* Unique to TDA9850: */
439 /* lower 4 bits control stereo noise threshold, over which stereo turns off
440 * set to values of 0x00 through 0x0f for Ster1 through Ster16 */
441
442
443 /* 0x05 - C5 - Control 1 in TDA9855 , Control 2 in TDA9850*/
444 /* Unique to TDA9855: */
445 #define TDA9855_MUTE 1<<7 /* GMU, Mute at outputs */
446 #define TDA9855_AVL 1<<6 /* AVL, Automatic Volume Level */
447 #define TDA9855_LOUD 1<<5 /* Loudness, 1==off */
448 #define TDA9855_SUR 1<<3 /* Surround / Subwoofer 1==.5(L-R) 0==.5(L+R) */
449 /* Bits 0 to 3 select various combinations
450 * of line in and line out, only the
451 * interesting ones are defined */
452 #define TDA9855_EXT 1<<2 /* Selects inputs LIR and LIL. Pins 41 & 12 */
453 #define TDA9855_INT 0 /* Selects inputs LOR and LOL. (internal) */
454
455 /* Unique to TDA9850: */
456 /* lower 4 bits contol SAP noise threshold, over which SAP turns off
457 * set to values of 0x00 through 0x0f for SAP1 through SAP16 */
458
459
460 /* 0x06 - C6 - Control 2 in TDA9855, Control 3 in TDA9850 */
461 /* Common to TDA9855 and TDA9850: */
462 #define TDA985x_SAP 3<<6 /* Selects SAP output, mute if not received */
463 #define TDA985x_STEREO 1<<6 /* Selects Stereo ouput, mono if not received */
464 #define TDA985x_MONO 0 /* Forces Mono output */
465 #define TDA985x_LMU 1<<3 /* Mute (LOR/LOL for 9855, OUTL/OUTR for 9850) */
466
467 /* Unique to TDA9855: */
468 #define TDA9855_TZCM 1<<5 /* If set, don't mute till zero crossing */
469 #define TDA9855_VZCM 1<<4 /* If set, don't change volume till zero crossing*/
470 #define TDA9855_LINEAR 0 /* Linear Stereo */
471 #define TDA9855_PSEUDO 1 /* Pseudo Stereo */
472 #define TDA9855_SPAT_30 2 /* Spatial Stereo, 30% anti-phase crosstalk */
473 #define TDA9855_SPAT_50 3 /* Spatial Stereo, 52% anti-phase crosstalk */
474 #define TDA9855_E_MONO 7 /* Forced mono - mono select elseware, so useless*/
475
476 /* 0x07 - C7 - Control 3 in TDA9855, Control 4 in TDA9850 */
477 /* Common to both TDA9855 and TDA9850: */
478 /* lower 4 bits control input gain from -3.5dB (0x0) to 4dB (0xF)
479 * in .5dB steps - 0dB is 0x7 */
480
481 /* 0x08, 0x09 - A1 and A2 (read/write) */
482 /* Common to both TDA9855 and TDA9850: */
483 /* lower 5 bites are wideband and spectral expander alignment
484 * from 0x00 to 0x1f - nominal at 0x0f and 0x10 (read/write) */
485 #define TDA985x_STP 1<<5 /* Stereo Pilot/detect (read-only) */
486 #define TDA985x_SAPP 1<<6 /* SAP Pilot/detect (read-only) */
487 #define TDA985x_STS 1<<7 /* Stereo trigger 1= <35mV 0= <30mV (write-only)*/
488
489 /* 0x0a - A3 */
490 /* Common to both TDA9855 and TDA9850: */
491 /* lower 3 bits control timing current for alignment: -30% (0x0), -20% (0x1),
492 * -10% (0x2), nominal (0x3), +10% (0x6), +20% (0x5), +30% (0x4) */
493 #define TDA985x_ADJ 1<<7 /* Stereo adjust on/off (wideband and spectral */
494
495 static int tda9855_volume(int val) { return val/0x2e8+0x27; }
496 static int tda9855_bass(int val) { return val/0xccc+0x06; }
497 static int tda9855_treble(int val) { return (val/0x1c71+0x3)<<1; }
498
499 static int tda985x_getmode(struct CHIPSTATE *chip)
500 {
501 int mode;
502
503 mode = ((TDA985x_STP | TDA985x_SAPP) &
504 chip_read(chip)) >> 4;
505 /* Add mono mode regardless of SAP and stereo */
506 /* Allows forced mono */
507 return mode | VIDEO_SOUND_MONO;
508 }
509
510 static void tda985x_setmode(struct CHIPSTATE *chip, int mode)
511 {
512 int update = 1;
513 int c6 = chip->shadow.bytes[TDA985x_C6+1] & 0x3f;
514
515 switch (mode) {
516 case VIDEO_SOUND_MONO:
517 c6 |= TDA985x_MONO;
518 break;
519 case VIDEO_SOUND_STEREO:
520 c6 |= TDA985x_STEREO;
521 break;
522 case VIDEO_SOUND_LANG1:
523 c6 |= TDA985x_SAP;
524 break;
525 default:
526 update = 0;
527 }
528 if (update)
529 chip_write(chip,TDA985x_C6,c6);
530 }
531
532
533 /* ---------------------------------------------------------------------- */
534 /* audio chip descriptions - defines+functions for tda9873h */
535
536 /* Subaddresses for TDA9873H */
537
538 #define TDA9873_SW 0x00 /* Switching */
539 #define TDA9873_AD 0x01 /* Adjust */
540 #define TDA9873_PT 0x02 /* Port */
541
542 /* Subaddress 0x00: Switching Data
543 * B7..B0:
544 *
545 * B1, B0: Input source selection
546 * 0, 0 internal
547 * 1, 0 external stereo
548 * 0, 1 external mono
549 */
550 #define TDA9873_INP_MASK 3
551 #define TDA9873_INTERNAL 0
552 #define TDA9873_EXT_STEREO 2
553 #define TDA9873_EXT_MONO 1
554
555 /* B3, B2: output signal select
556 * B4 : transmission mode
557 * 0, 0, 1 Mono
558 * 1, 0, 0 Stereo
559 * 1, 1, 1 Stereo (reversed channel)
560 * 0, 0, 0 Dual AB
561 * 0, 0, 1 Dual AA
562 * 0, 1, 0 Dual BB
563 * 0, 1, 1 Dual BA
564 */
565
566 #define TDA9873_TR_MASK (7 << 2)
567 #define TDA9873_TR_MONO 4
568 #define TDA9873_TR_STEREO 1 << 4
569 #define TDA9873_TR_REVERSE (1 << 3) & (1 << 2)
570 #define TDA9873_TR_DUALA 1 << 2
571 #define TDA9873_TR_DUALB 1 << 3
572
573 /* output level controls
574 * B5: output level switch (0 = reduced gain, 1 = normal gain)
575 * B6: mute (1 = muted)
576 * B7: auto-mute (1 = auto-mute enabled)
577 */
578
579 #define TDA9873_GAIN_NORMAL 1 << 5
580 #define TDA9873_MUTE 1 << 6
581 #define TDA9873_AUTOMUTE 1 << 7
582
583 /* Subaddress 0x01: Adjust/standard */
584
585 /* Lower 4 bits (C3..C0) control stereo adjustment on R channel (-0.6 - +0.7 dB)
586 * Recommended value is +0 dB
587 */
588
589 #define TDA9873_STEREO_ADJ 0x06 /* 0dB gain */
590
591 /* Bits C6..C4 control FM stantard
592 * C6, C5, C4
593 * 0, 0, 0 B/G (PAL FM)
594 * 0, 0, 1 M
595 * 0, 1, 0 D/K(1)
596 * 0, 1, 1 D/K(2)
597 * 1, 0, 0 D/K(3)
598 * 1, 0, 1 I
599 */
600 #define TDA9873_BG 0
601 #define TDA9873_M 1
602 #define TDA9873_DK1 2
603 #define TDA9873_DK2 3
604 #define TDA9873_DK3 4
605 #define TDA9873_I 5
606
607 /* C7 controls identification response time (1=fast/0=normal)
608 */
609 #define TDA9873_IDR_NORM 0
610 #define TDA9873_IDR_FAST 1 << 7
611
612
613 /* Subaddress 0x02: Port data */
614
615 /* E1, E0 free programmable ports P1/P2
616 0, 0 both ports low
617 0, 1 P1 high
618 1, 0 P2 high
619 1, 1 both ports high
620 */
621
622 #define TDA9873_PORTS 3
623
624 /* E2: test port */
625 #define TDA9873_TST_PORT 1 << 2
626
627 /* E5..E3 control mono output channel (together with transmission mode bit B4)
628 *
629 * E5 E4 E3 B4 OUTM
630 * 0 0 0 0 mono
631 * 0 0 1 0 DUAL B
632 * 0 1 0 1 mono (from stereo decoder)
633 */
634 #define TDA9873_MOUT_MONO 0
635 #define TDA9873_MOUT_FMONO 0
636 #define TDA9873_MOUT_DUALA 0
637 #define TDA9873_MOUT_DUALB 1 << 3
638 #define TDA9873_MOUT_ST 1 << 4
639 #define TDA9873_MOUT_EXTM (1 << 4 ) & (1 << 3)
640 #define TDA9873_MOUT_EXTL 1 << 5
641 #define TDA9873_MOUT_EXTR (1 << 5 ) & (1 << 3)
642 #define TDA9873_MOUT_EXTLR (1 << 5 ) & (1 << 4)
643 #define TDA9873_MOUT_MUTE (1 << 5 ) & (1 << 4) & (1 << 3)
644
645 /* Status bits: (chip read) */
646 #define TDA9873_PONR 0 /* Power-on reset detected if = 1 */
647 #define TDA9873_STEREO 2 /* Stereo sound is identified */
648 #define TDA9873_DUAL 4 /* Dual sound is identified */
649
650 static int tda9873_getmode(struct CHIPSTATE *chip)
651 {
652 int val,mode;
653
654 val = chip_read(chip);
655 mode = VIDEO_SOUND_MONO;
656 if (val & TDA9873_STEREO)
657 mode |= VIDEO_SOUND_STEREO;
658 if (val & TDA9873_DUAL)
659 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
660 dprintk ("tda9873_getmode(): raw chip read: %d, return: %d\n",
661 val, mode);
662 return mode;
663 }
664
665 static void tda9873_setmode(struct CHIPSTATE *chip, int mode)
666 {
667 int sw_data = chip->shadow.bytes[TDA9873_SW+1] & ~ TDA9873_TR_MASK;
668 /* int adj_data = chip->shadow.bytes[TDA9873_AD+1] ; */
669
670 if ((sw_data & TDA9873_INP_MASK) != TDA9873_INTERNAL) {
671 dprintk("tda9873_setmode(): external input\n");
672 return;
673 }
674
675 dprintk("tda9873_setmode(): chip->shadow.bytes[%d] = %d\n", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]);
676 dprintk("tda9873_setmode(): sw_data = %d\n", sw_data);
677
678 switch (mode) {
679 case VIDEO_SOUND_MONO:
680 sw_data |= TDA9873_TR_MONO;
681 break;
682 case VIDEO_SOUND_STEREO:
683 sw_data |= TDA9873_TR_STEREO;
684 break;
685 case VIDEO_SOUND_LANG1:
686 sw_data |= TDA9873_TR_DUALA;
687 break;
688 case VIDEO_SOUND_LANG2:
689 sw_data |= TDA9873_TR_DUALB;
690 break;
691 default:
692 chip->mode = 0;
693 return;
694 }
695
696 chip_write(chip, TDA9873_SW, sw_data);
697 dprintk("tda9873_setmode(): req. mode %d; chip_write: %d\n",
698 mode, sw_data);
699 }
700
701 static int tda9873_checkit(struct CHIPSTATE *chip)
702 {
703 int rc;
704
705 if (-1 == (rc = chip_read2(chip,254)))
706 return 0;
707 return (rc & ~0x1f) == 0x80;
708 }
709
710
711 /* ---------------------------------------------------------------------- */
712 /* audio chip description - defines+functions for tda9874h and tda9874a */
713 /* Dariusz Kowalewski <darekk@automex.pl> */
714
715 /* Subaddresses for TDA9874H and TDA9874A (slave rx) */
716 #define TDA9874A_AGCGR 0x00 /* AGC gain */
717 #define TDA9874A_GCONR 0x01 /* general config */
718 #define TDA9874A_MSR 0x02 /* monitor select */
719 #define TDA9874A_C1FRA 0x03 /* carrier 1 freq. */
720 #define TDA9874A_C1FRB 0x04 /* carrier 1 freq. */
721 #define TDA9874A_C1FRC 0x05 /* carrier 1 freq. */
722 #define TDA9874A_C2FRA 0x06 /* carrier 2 freq. */
723 #define TDA9874A_C2FRB 0x07 /* carrier 2 freq. */
724 #define TDA9874A_C2FRC 0x08 /* carrier 2 freq. */
725 #define TDA9874A_DCR 0x09 /* demodulator config */
726 #define TDA9874A_FMER 0x0a /* FM de-emphasis */
727 #define TDA9874A_FMMR 0x0b /* FM dematrix */
728 #define TDA9874A_C1OLAR 0x0c /* ch.1 output level adj. */
729 #define TDA9874A_C2OLAR 0x0d /* ch.2 output level adj. */
730 #define TDA9874A_NCONR 0x0e /* NICAM config */
731 #define TDA9874A_NOLAR 0x0f /* NICAM output level adj. */
732 #define TDA9874A_NLELR 0x10 /* NICAM lower error limit */
733 #define TDA9874A_NUELR 0x11 /* NICAM upper error limit */
734 #define TDA9874A_AMCONR 0x12 /* audio mute control */
735 #define TDA9874A_SDACOSR 0x13 /* stereo DAC output select */
736 #define TDA9874A_AOSR 0x14 /* analog output select */
737 #define TDA9874A_DAICONR 0x15 /* digital audio interface config */
738 #define TDA9874A_I2SOSR 0x16 /* I2S-bus output select */
739 #define TDA9874A_I2SOLAR 0x17 /* I2S-bus output level adj. */
740 #define TDA9874A_MDACOSR 0x18 /* mono DAC output select (tda9874a) */
741 #define TDA9874A_ESP 0xFF /* easy standard progr. (tda9874a) */
742
743 /* Subaddresses for TDA9874H and TDA9874A (slave tx) */
744 #define TDA9874A_DSR 0x00 /* device status */
745 #define TDA9874A_NSR 0x01 /* NICAM status */
746 #define TDA9874A_NECR 0x02 /* NICAM error count */
747 #define TDA9874A_DR1 0x03 /* add. data LSB */
748 #define TDA9874A_DR2 0x04 /* add. data MSB */
749 #define TDA9874A_LLRA 0x05 /* monitor level read-out LSB */
750 #define TDA9874A_LLRB 0x06 /* monitor level read-out MSB */
751 #define TDA9874A_SIFLR 0x07 /* SIF level */
752 #define TDA9874A_TR2 252 /* test reg. 2 */
753 #define TDA9874A_TR1 253 /* test reg. 1 */
754 #define TDA9874A_DIC 254 /* device id. code */
755 #define TDA9874A_SIC 255 /* software id. code */
756
757
758 static int tda9874a_mode = 1; /* 0: A2, 1: NICAM */
759 static int tda9874a_GCONR = 0xc0; /* default config. input pin: SIFSEL=0 */
760 static int tda9874a_NCONR = 0x01; /* default NICAM config.: AMSEL=0,AMUTE=1 */
761 static int tda9874a_ESP = 0x07; /* default standard: NICAM D/K */
762 static int tda9874a_dic = -1; /* device id. code */
763
764 /* insmod options for tda9874a */
765 static unsigned int tda9874a_SIF = UNSET;
766 static unsigned int tda9874a_AMSEL = UNSET;
767 static unsigned int tda9874a_STD = UNSET;
768 module_param(tda9874a_SIF, int, 0444);
769 module_param(tda9874a_AMSEL, int, 0444);
770 module_param(tda9874a_STD, int, 0444);
771
772 /*
773 * initialization table for tda9874 decoder:
774 * - carrier 1 freq. registers (3 bytes)
775 * - carrier 2 freq. registers (3 bytes)
776 * - demudulator config register
777 * - FM de-emphasis register (slow identification mode)
778 * Note: frequency registers must be written in single i2c transfer.
779 */
780 static struct tda9874a_MODES {
781 char *name;
782 audiocmd cmd;
783 } tda9874a_modelist[9] = {
784 { "A2, B/G",
785 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x77,0xA0,0x00, 0x00,0x00 }} },
786 { "A2, M (Korea)",
787 { 9, { TDA9874A_C1FRA, 0x5D,0xC0,0x00, 0x62,0x6A,0xAA, 0x20,0x22 }} },
788 { "A2, D/K (1)",
789 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x82,0x60,0x00, 0x00,0x00 }} },
790 { "A2, D/K (2)",
791 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x8C,0x75,0x55, 0x00,0x00 }} },
792 { "A2, D/K (3)",
793 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x77,0xA0,0x00, 0x00,0x00 }} },
794 { "NICAM, I",
795 { 9, { TDA9874A_C1FRA, 0x7D,0x00,0x00, 0x88,0x8A,0xAA, 0x08,0x33 }} },
796 { "NICAM, B/G",
797 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x79,0xEA,0xAA, 0x08,0x33 }} },
798 { "NICAM, D/K", /* default */
799 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x08,0x33 }} },
800 { "NICAM, L",
801 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x09,0x33 }} }
802 };
803
804 static int tda9874a_setup(struct CHIPSTATE *chip)
805 {
806 chip_write(chip, TDA9874A_AGCGR, 0x00); /* 0 dB */
807 chip_write(chip, TDA9874A_GCONR, tda9874a_GCONR);
808 chip_write(chip, TDA9874A_MSR, (tda9874a_mode) ? 0x03:0x02);
809 if(tda9874a_dic == 0x11) {
810 chip_write(chip, TDA9874A_FMMR, 0x80);
811 } else { /* dic == 0x07 */
812 chip_cmd(chip,"tda9874_modelist",&tda9874a_modelist[tda9874a_STD].cmd);
813 chip_write(chip, TDA9874A_FMMR, 0x00);
814 }
815 chip_write(chip, TDA9874A_C1OLAR, 0x00); /* 0 dB */
816 chip_write(chip, TDA9874A_C2OLAR, 0x00); /* 0 dB */
817 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
818 chip_write(chip, TDA9874A_NOLAR, 0x00); /* 0 dB */
819 /* Note: If signal quality is poor you may want to change NICAM */
820 /* error limit registers (NLELR and NUELR) to some greater values. */
821 /* Then the sound would remain stereo, but won't be so clear. */
822 chip_write(chip, TDA9874A_NLELR, 0x14); /* default */
823 chip_write(chip, TDA9874A_NUELR, 0x50); /* default */
824
825 if(tda9874a_dic == 0x11) {
826 chip_write(chip, TDA9874A_AMCONR, 0xf9);
827 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
828 chip_write(chip, TDA9874A_AOSR, 0x80);
829 chip_write(chip, TDA9874A_MDACOSR, (tda9874a_mode) ? 0x82:0x80);
830 chip_write(chip, TDA9874A_ESP, tda9874a_ESP);
831 } else { /* dic == 0x07 */
832 chip_write(chip, TDA9874A_AMCONR, 0xfb);
833 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
834 chip_write(chip, TDA9874A_AOSR, 0x00); // or 0x10
835 }
836 dprintk("tda9874a_setup(): %s [0x%02X].\n",
837 tda9874a_modelist[tda9874a_STD].name,tda9874a_STD);
838 return 1;
839 }
840
841 static int tda9874a_getmode(struct CHIPSTATE *chip)
842 {
843 int dsr,nsr,mode;
844 int necr; /* just for debugging */
845
846 mode = VIDEO_SOUND_MONO;
847
848 if(-1 == (dsr = chip_read2(chip,TDA9874A_DSR)))
849 return mode;
850 if(-1 == (nsr = chip_read2(chip,TDA9874A_NSR)))
851 return mode;
852 if(-1 == (necr = chip_read2(chip,TDA9874A_NECR)))
853 return mode;
854
855 /* need to store dsr/nsr somewhere */
856 chip->shadow.bytes[MAXREGS-2] = dsr;
857 chip->shadow.bytes[MAXREGS-1] = nsr;
858
859 if(tda9874a_mode) {
860 /* Note: DSR.RSSF and DSR.AMSTAT bits are also checked.
861 * If NICAM auto-muting is enabled, DSR.AMSTAT=1 indicates
862 * that sound has (temporarily) switched from NICAM to
863 * mono FM (or AM) on 1st sound carrier due to high NICAM bit
864 * error count. So in fact there is no stereo in this case :-(
865 * But changing the mode to VIDEO_SOUND_MONO would switch
866 * external 4052 multiplexer in audio_hook().
867 */
868 if(nsr & 0x02) /* NSR.S/MB=1 */
869 mode |= VIDEO_SOUND_STEREO;
870 if(nsr & 0x01) /* NSR.D/SB=1 */
871 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
872 } else {
873 if(dsr & 0x02) /* DSR.IDSTE=1 */
874 mode |= VIDEO_SOUND_STEREO;
875 if(dsr & 0x04) /* DSR.IDDUA=1 */
876 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
877 }
878
879 dprintk("tda9874a_getmode(): DSR=0x%X, NSR=0x%X, NECR=0x%X, return: %d.\n",
880 dsr, nsr, necr, mode);
881 return mode;
882 }
883
884 static void tda9874a_setmode(struct CHIPSTATE *chip, int mode)
885 {
886 /* Disable/enable NICAM auto-muting (based on DSR.RSSF status bit). */
887 /* If auto-muting is disabled, we can hear a signal of degrading quality. */
888 if(tda9874a_mode) {
889 if(chip->shadow.bytes[MAXREGS-2] & 0x20) /* DSR.RSSF=1 */
890 tda9874a_NCONR &= 0xfe; /* enable */
891 else
892 tda9874a_NCONR |= 0x01; /* disable */
893 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
894 }
895
896 /* Note: TDA9874A supports automatic FM dematrixing (FMMR register)
897 * and has auto-select function for audio output (AOSR register).
898 * Old TDA9874H doesn't support these features.
899 * TDA9874A also has additional mono output pin (OUTM), which
900 * on same (all?) tv-cards is not used, anyway (as well as MONOIN).
901 */
902 if(tda9874a_dic == 0x11) {
903 int aosr = 0x80;
904 int mdacosr = (tda9874a_mode) ? 0x82:0x80;
905
906 switch(mode) {
907 case VIDEO_SOUND_MONO:
908 case VIDEO_SOUND_STEREO:
909 break;
910 case VIDEO_SOUND_LANG1:
911 aosr = 0x80; /* auto-select, dual A/A */
912 mdacosr = (tda9874a_mode) ? 0x82:0x80;
913 break;
914 case VIDEO_SOUND_LANG2:
915 aosr = 0xa0; /* auto-select, dual B/B */
916 mdacosr = (tda9874a_mode) ? 0x83:0x81;
917 break;
918 default:
919 chip->mode = 0;
920 return;
921 }
922 chip_write(chip, TDA9874A_AOSR, aosr);
923 chip_write(chip, TDA9874A_MDACOSR, mdacosr);
924
925 dprintk("tda9874a_setmode(): req. mode %d; AOSR=0x%X, MDACOSR=0x%X.\n",
926 mode, aosr, mdacosr);
927
928 } else { /* dic == 0x07 */
929 int fmmr,aosr;
930
931 switch(mode) {
932 case VIDEO_SOUND_MONO:
933 fmmr = 0x00; /* mono */
934 aosr = 0x10; /* A/A */
935 break;
936 case VIDEO_SOUND_STEREO:
937 if(tda9874a_mode) {
938 fmmr = 0x00;
939 aosr = 0x00; /* handled by NICAM auto-mute */
940 } else {
941 fmmr = (tda9874a_ESP == 1) ? 0x05 : 0x04; /* stereo */
942 aosr = 0x00;
943 }
944 break;
945 case VIDEO_SOUND_LANG1:
946 fmmr = 0x02; /* dual */
947 aosr = 0x10; /* dual A/A */
948 break;
949 case VIDEO_SOUND_LANG2:
950 fmmr = 0x02; /* dual */
951 aosr = 0x20; /* dual B/B */
952 break;
953 default:
954 chip->mode = 0;
955 return;
956 }
957 chip_write(chip, TDA9874A_FMMR, fmmr);
958 chip_write(chip, TDA9874A_AOSR, aosr);
959
960 dprintk("tda9874a_setmode(): req. mode %d; FMMR=0x%X, AOSR=0x%X.\n",
961 mode, fmmr, aosr);
962 }
963 }
964
965 static int tda9874a_checkit(struct CHIPSTATE *chip)
966 {
967 int dic,sic; /* device id. and software id. codes */
968
969 if(-1 == (dic = chip_read2(chip,TDA9874A_DIC)))
970 return 0;
971 if(-1 == (sic = chip_read2(chip,TDA9874A_SIC)))
972 return 0;
973
974 dprintk("tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", dic, sic);
975
976 if((dic == 0x11)||(dic == 0x07)) {
977 printk("tvaudio: found tda9874%s.\n", (dic == 0x11) ? "a":"h");
978 tda9874a_dic = dic; /* remember device id. */
979 return 1;
980 }
981 return 0; /* not found */
982 }
983
984 static int tda9874a_initialize(struct CHIPSTATE *chip)
985 {
986 if (tda9874a_SIF > 2)
987 tda9874a_SIF = 1;
988 if (tda9874a_STD > 8)
989 tda9874a_STD = 0;
990 if(tda9874a_AMSEL > 1)
991 tda9874a_AMSEL = 0;
992
993 if(tda9874a_SIF == 1)
994 tda9874a_GCONR = 0xc0; /* sound IF input 1 */
995 else
996 tda9874a_GCONR = 0xc1; /* sound IF input 2 */
997
998 tda9874a_ESP = tda9874a_STD;
999 tda9874a_mode = (tda9874a_STD < 5) ? 0 : 1;
1000
1001 if(tda9874a_AMSEL == 0)
1002 tda9874a_NCONR = 0x01; /* auto-mute: analog mono input */
1003 else
1004 tda9874a_NCONR = 0x05; /* auto-mute: 1st carrier FM or AM */
1005
1006 tda9874a_setup(chip);
1007 return 0;
1008 }
1009
1010
1011 /* ---------------------------------------------------------------------- */
1012 /* audio chip descriptions - defines+functions for tea6420 */
1013
1014 #define TEA6300_VL 0x00 /* volume left */
1015 #define TEA6300_VR 0x01 /* volume right */
1016 #define TEA6300_BA 0x02 /* bass */
1017 #define TEA6300_TR 0x03 /* treble */
1018 #define TEA6300_FA 0x04 /* fader control */
1019 #define TEA6300_S 0x05 /* switch register */
1020 /* values for those registers: */
1021 #define TEA6300_S_SA 0x01 /* stereo A input */
1022 #define TEA6300_S_SB 0x02 /* stereo B */
1023 #define TEA6300_S_SC 0x04 /* stereo C */
1024 #define TEA6300_S_GMU 0x80 /* general mute */
1025
1026 #define TEA6320_V 0x00 /* volume (0-5)/loudness off (6)/zero crossing mute(7) */
1027 #define TEA6320_FFR 0x01 /* fader front right (0-5) */
1028 #define TEA6320_FFL 0x02 /* fader front left (0-5) */
1029 #define TEA6320_FRR 0x03 /* fader rear right (0-5) */
1030 #define TEA6320_FRL 0x04 /* fader rear left (0-5) */
1031 #define TEA6320_BA 0x05 /* bass (0-4) */
1032 #define TEA6320_TR 0x06 /* treble (0-4) */
1033 #define TEA6320_S 0x07 /* switch register */
1034 /* values for those registers: */
1035 #define TEA6320_S_SA 0x07 /* stereo A input */
1036 #define TEA6320_S_SB 0x06 /* stereo B */
1037 #define TEA6320_S_SC 0x05 /* stereo C */
1038 #define TEA6320_S_SD 0x04 /* stereo D */
1039 #define TEA6320_S_GMU 0x80 /* general mute */
1040
1041 #define TEA6420_S_SA 0x00 /* stereo A input */
1042 #define TEA6420_S_SB 0x01 /* stereo B */
1043 #define TEA6420_S_SC 0x02 /* stereo C */
1044 #define TEA6420_S_SD 0x03 /* stereo D */
1045 #define TEA6420_S_SE 0x04 /* stereo E */
1046 #define TEA6420_S_GMU 0x05 /* general mute */
1047
1048 static int tea6300_shift10(int val) { return val >> 10; }
1049 static int tea6300_shift12(int val) { return val >> 12; }
1050
1051 /* Assumes 16bit input (values 0x3f to 0x0c are unique, values less than */
1052 /* 0x0c mirror those immediately higher) */
1053 static int tea6320_volume(int val) { return (val / (65535/(63-12)) + 12) & 0x3f; }
1054 static int tea6320_shift11(int val) { return val >> 11; }
1055 static int tea6320_initialize(struct CHIPSTATE * chip)
1056 {
1057 chip_write(chip, TEA6320_FFR, 0x3f);
1058 chip_write(chip, TEA6320_FFL, 0x3f);
1059 chip_write(chip, TEA6320_FRR, 0x3f);
1060 chip_write(chip, TEA6320_FRL, 0x3f);
1061
1062 return 0;
1063 }
1064
1065
1066 /* ---------------------------------------------------------------------- */
1067 /* audio chip descriptions - defines+functions for tda8425 */
1068
1069 #define TDA8425_VL 0x00 /* volume left */
1070 #define TDA8425_VR 0x01 /* volume right */
1071 #define TDA8425_BA 0x02 /* bass */
1072 #define TDA8425_TR 0x03 /* treble */
1073 #define TDA8425_S1 0x08 /* switch functions */
1074 /* values for those registers: */
1075 #define TDA8425_S1_OFF 0xEE /* audio off (mute on) */
1076 #define TDA8425_S1_CH1 0xCE /* audio channel 1 (mute off) - "linear stereo" mode */
1077 #define TDA8425_S1_CH2 0xCF /* audio channel 2 (mute off) - "linear stereo" mode */
1078 #define TDA8425_S1_MU 0x20 /* mute bit */
1079 #define TDA8425_S1_STEREO 0x18 /* stereo bits */
1080 #define TDA8425_S1_STEREO_SPATIAL 0x18 /* spatial stereo */
1081 #define TDA8425_S1_STEREO_LINEAR 0x08 /* linear stereo */
1082 #define TDA8425_S1_STEREO_PSEUDO 0x10 /* pseudo stereo */
1083 #define TDA8425_S1_STEREO_MONO 0x00 /* forced mono */
1084 #define TDA8425_S1_ML 0x06 /* language selector */
1085 #define TDA8425_S1_ML_SOUND_A 0x02 /* sound a */
1086 #define TDA8425_S1_ML_SOUND_B 0x04 /* sound b */
1087 #define TDA8425_S1_ML_STEREO 0x06 /* stereo */
1088 #define TDA8425_S1_IS 0x01 /* channel selector */
1089
1090
1091 static int tda8425_shift10(int val) { return (val >> 10) | 0xc0; }
1092 static int tda8425_shift12(int val) { return (val >> 12) | 0xf0; }
1093
1094 static int tda8425_initialize(struct CHIPSTATE *chip)
1095 {
1096 struct CHIPDESC *desc = chiplist + chip->type;
1097 int inputmap[8] = { /* tuner */ TDA8425_S1_CH2, /* radio */ TDA8425_S1_CH1,
1098 /* extern */ TDA8425_S1_CH1, /* intern */ TDA8425_S1_OFF,
1099 /* off */ TDA8425_S1_OFF, /* on */ TDA8425_S1_CH2};
1100
1101 if (chip->c.adapter->id == I2C_HW_B_RIVA) {
1102 memcpy (desc->inputmap, inputmap, sizeof (inputmap));
1103 }
1104 return 0;
1105 }
1106
1107 static void tda8425_setmode(struct CHIPSTATE *chip, int mode)
1108 {
1109 int s1 = chip->shadow.bytes[TDA8425_S1+1] & 0xe1;
1110
1111 if (mode & VIDEO_SOUND_LANG1) {
1112 s1 |= TDA8425_S1_ML_SOUND_A;
1113 s1 |= TDA8425_S1_STEREO_PSEUDO;
1114
1115 } else if (mode & VIDEO_SOUND_LANG2) {
1116 s1 |= TDA8425_S1_ML_SOUND_B;
1117 s1 |= TDA8425_S1_STEREO_PSEUDO;
1118
1119 } else {
1120 s1 |= TDA8425_S1_ML_STEREO;
1121
1122 if (mode & VIDEO_SOUND_MONO)
1123 s1 |= TDA8425_S1_STEREO_MONO;
1124 if (mode & VIDEO_SOUND_STEREO)
1125 s1 |= TDA8425_S1_STEREO_SPATIAL;
1126 }
1127 chip_write(chip,TDA8425_S1,s1);
1128 }
1129
1130
1131 /* ---------------------------------------------------------------------- */
1132 /* audio chip descriptions - defines+functions for pic16c54 (PV951) */
1133
1134 /* the registers of 16C54, I2C sub address. */
1135 #define PIC16C54_REG_KEY_CODE 0x01 /* Not use. */
1136 #define PIC16C54_REG_MISC 0x02
1137
1138 /* bit definition of the RESET register, I2C data. */
1139 #define PIC16C54_MISC_RESET_REMOTE_CTL 0x01 /* bit 0, Reset to receive the key */
1140 /* code of remote controller */
1141 #define PIC16C54_MISC_MTS_MAIN 0x02 /* bit 1 */
1142 #define PIC16C54_MISC_MTS_SAP 0x04 /* bit 2 */
1143 #define PIC16C54_MISC_MTS_BOTH 0x08 /* bit 3 */
1144 #define PIC16C54_MISC_SND_MUTE 0x10 /* bit 4, Mute Audio(Line-in and Tuner) */
1145 #define PIC16C54_MISC_SND_NOTMUTE 0x20 /* bit 5 */
1146 #define PIC16C54_MISC_SWITCH_TUNER 0x40 /* bit 6 , Switch to Line-in */
1147 #define PIC16C54_MISC_SWITCH_LINE 0x80 /* bit 7 , Switch to Tuner */
1148
1149 /* ---------------------------------------------------------------------- */
1150 /* audio chip descriptions - defines+functions for TA8874Z */
1151
1152 // write 1st byte
1153 #define TA8874Z_LED_STE 0x80
1154 #define TA8874Z_LED_BIL 0x40
1155 #define TA8874Z_LED_EXT 0x20
1156 #define TA8874Z_MONO_SET 0x10
1157 #define TA8874Z_MUTE 0x08
1158 #define TA8874Z_F_MONO 0x04
1159 #define TA8874Z_MODE_SUB 0x02
1160 #define TA8874Z_MODE_MAIN 0x01
1161
1162 // write 2nd byte
1163 //#define TA8874Z_TI 0x80 // test mode
1164 #define TA8874Z_SEPARATION 0x3f
1165 #define TA8874Z_SEPARATION_DEFAULT 0x10
1166
1167 // read
1168 #define TA8874Z_B1 0x80
1169 #define TA8874Z_B0 0x40
1170 #define TA8874Z_CHAG_FLAG 0x20
1171
1172 // B1 B0
1173 // mono L H
1174 // stereo L L
1175 // BIL H L
1176
1177 static int ta8874z_getmode(struct CHIPSTATE *chip)
1178 {
1179 int val, mode;
1180
1181 val = chip_read(chip);
1182 mode = VIDEO_SOUND_MONO;
1183 if (val & TA8874Z_B1){
1184 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
1185 }else if (!(val & TA8874Z_B0)){
1186 mode |= VIDEO_SOUND_STEREO;
1187 }
1188 //dprintk ("ta8874z_getmode(): raw chip read: 0x%02x, return: 0x%02x\n", val, mode);
1189 return mode;
1190 }
1191
1192 static audiocmd ta8874z_stereo = { 2, {0, TA8874Z_SEPARATION_DEFAULT}};
1193 static audiocmd ta8874z_mono = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}};
1194 static audiocmd ta8874z_main = {2, { 0, TA8874Z_SEPARATION_DEFAULT}};
1195 static audiocmd ta8874z_sub = {2, { TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}};
1196
1197 static void ta8874z_setmode(struct CHIPSTATE *chip, int mode)
1198 {
1199 int update = 1;
1200 audiocmd *t = NULL;
1201 dprintk("ta8874z_setmode(): mode: 0x%02x\n", mode);
1202
1203 switch(mode){
1204 case VIDEO_SOUND_MONO:
1205 t = &ta8874z_mono;
1206 break;
1207 case VIDEO_SOUND_STEREO:
1208 t = &ta8874z_stereo;
1209 break;
1210 case VIDEO_SOUND_LANG1:
1211 t = &ta8874z_main;
1212 break;
1213 case VIDEO_SOUND_LANG2:
1214 t = &ta8874z_sub;
1215 break;
1216 default:
1217 update = 0;
1218 }
1219
1220 if(update)
1221 chip_cmd(chip, "TA8874Z", t);
1222 }
1223
1224 static int ta8874z_checkit(struct CHIPSTATE *chip)
1225 {
1226 int rc;
1227 rc = chip_read(chip);
1228 return ((rc & 0x1f) == 0x1f) ? 1 : 0;
1229 }
1230
1231 /* ---------------------------------------------------------------------- */
1232 /* audio chip descriptions - struct CHIPDESC */
1233
1234 /* insmod options to enable/disable individual audio chips */
1235 static int tda8425 = 1;
1236 static int tda9840 = 1;
1237 static int tda9850 = 1;
1238 static int tda9855 = 1;
1239 static int tda9873 = 1;
1240 static int tda9874a = 1;
1241 static int tea6300 = 0; // address clash with msp34xx
1242 static int tea6320 = 0; // address clash with msp34xx
1243 static int tea6420 = 1;
1244 static int pic16c54 = 1;
1245 static int ta8874z = 0; // address clash with tda9840
1246
1247 module_param(tda8425, int, 0444);
1248 module_param(tda9840, int, 0444);
1249 module_param(tda9850, int, 0444);
1250 module_param(tda9855, int, 0444);
1251 module_param(tda9873, int, 0444);
1252 module_param(tda9874a, int, 0444);
1253 module_param(tea6300, int, 0444);
1254 module_param(tea6320, int, 0444);
1255 module_param(tea6420, int, 0444);
1256 module_param(pic16c54, int, 0444);
1257 module_param(ta8874z, int, 0444);
1258
1259 static struct CHIPDESC chiplist[] = {
1260 {
1261 .name = "tda9840",
1262 .id = I2C_DRIVERID_TDA9840,
1263 .insmodopt = &tda9840,
1264 .addr_lo = I2C_TDA9840 >> 1,
1265 .addr_hi = I2C_TDA9840 >> 1,
1266 .registers = 5,
1267
1268 .getmode = tda9840_getmode,
1269 .setmode = tda9840_setmode,
1270 .checkmode = generic_checkmode,
1271
1272 .init = { 2, { TDA9840_TEST, TDA9840_TEST_INT1SN
1273 /* ,TDA9840_SW, TDA9840_MONO */} }
1274 },
1275 {
1276 .name = "tda9873h",
1277 .id = I2C_DRIVERID_TDA9873,
1278 .checkit = tda9873_checkit,
1279 .insmodopt = &tda9873,
1280 .addr_lo = I2C_TDA985x_L >> 1,
1281 .addr_hi = I2C_TDA985x_H >> 1,
1282 .registers = 3,
1283 .flags = CHIP_HAS_INPUTSEL,
1284
1285 .getmode = tda9873_getmode,
1286 .setmode = tda9873_setmode,
1287 .checkmode = generic_checkmode,
1288
1289 .init = { 4, { TDA9873_SW, 0xa4, 0x06, 0x03 } },
1290 .inputreg = TDA9873_SW,
1291 .inputmute = TDA9873_MUTE | TDA9873_AUTOMUTE,
1292 .inputmap = {0xa0, 0xa2, 0xa0, 0xa0, 0xc0},
1293 .inputmask = TDA9873_INP_MASK|TDA9873_MUTE|TDA9873_AUTOMUTE,
1294
1295 },
1296 {
1297 .name = "tda9874h/a",
1298 .id = I2C_DRIVERID_TDA9874,
1299 .checkit = tda9874a_checkit,
1300 .initialize = tda9874a_initialize,
1301 .insmodopt = &tda9874a,
1302 .addr_lo = I2C_TDA9874 >> 1,
1303 .addr_hi = I2C_TDA9874 >> 1,
1304
1305 .getmode = tda9874a_getmode,
1306 .setmode = tda9874a_setmode,
1307 .checkmode = generic_checkmode,
1308 },
1309 {
1310 .name = "tda9850",
1311 .id = I2C_DRIVERID_TDA9850,
1312 .insmodopt = &tda9850,
1313 .addr_lo = I2C_TDA985x_L >> 1,
1314 .addr_hi = I2C_TDA985x_H >> 1,
1315 .registers = 11,
1316
1317 .getmode = tda985x_getmode,
1318 .setmode = tda985x_setmode,
1319
1320 .init = { 8, { TDA9850_C4, 0x08, 0x08, TDA985x_STEREO, 0x07, 0x10, 0x10, 0x03 } }
1321 },
1322 {
1323 .name = "tda9855",
1324 .id = I2C_DRIVERID_TDA9855,
1325 .insmodopt = &tda9855,
1326 .addr_lo = I2C_TDA985x_L >> 1,
1327 .addr_hi = I2C_TDA985x_H >> 1,
1328 .registers = 11,
1329 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE,
1330
1331 .leftreg = TDA9855_VL,
1332 .rightreg = TDA9855_VR,
1333 .bassreg = TDA9855_BA,
1334 .treblereg = TDA9855_TR,
1335 .volfunc = tda9855_volume,
1336 .bassfunc = tda9855_bass,
1337 .treblefunc = tda9855_treble,
1338
1339 .getmode = tda985x_getmode,
1340 .setmode = tda985x_setmode,
1341
1342 .init = { 12, { 0, 0x6f, 0x6f, 0x0e, 0x07<<1, 0x8<<2,
1343 TDA9855_MUTE | TDA9855_AVL | TDA9855_LOUD | TDA9855_INT,
1344 TDA985x_STEREO | TDA9855_LINEAR | TDA9855_TZCM | TDA9855_VZCM,
1345 0x07, 0x10, 0x10, 0x03 }}
1346 },
1347 {
1348 .name = "tea6300",
1349 .id = I2C_DRIVERID_TEA6300,
1350 .insmodopt = &tea6300,
1351 .addr_lo = I2C_TEA6300 >> 1,
1352 .addr_hi = I2C_TEA6300 >> 1,
1353 .registers = 6,
1354 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1355
1356 .leftreg = TEA6300_VR,
1357 .rightreg = TEA6300_VL,
1358 .bassreg = TEA6300_BA,
1359 .treblereg = TEA6300_TR,
1360 .volfunc = tea6300_shift10,
1361 .bassfunc = tea6300_shift12,
1362 .treblefunc = tea6300_shift12,
1363
1364 .inputreg = TEA6300_S,
1365 .inputmap = { TEA6300_S_SA, TEA6300_S_SB, TEA6300_S_SC },
1366 .inputmute = TEA6300_S_GMU,
1367 },
1368 {
1369 .name = "tea6320",
1370 .id = I2C_DRIVERID_TEA6300,
1371 .initialize = tea6320_initialize,
1372 .insmodopt = &tea6320,
1373 .addr_lo = I2C_TEA6300 >> 1,
1374 .addr_hi = I2C_TEA6300 >> 1,
1375 .registers = 8,
1376 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1377
1378 .leftreg = TEA6320_V,
1379 .rightreg = TEA6320_V,
1380 .bassreg = TEA6320_BA,
1381 .treblereg = TEA6320_TR,
1382 .volfunc = tea6320_volume,
1383 .bassfunc = tea6320_shift11,
1384 .treblefunc = tea6320_shift11,
1385
1386 .inputreg = TEA6320_S,
1387 .inputmap = { TEA6320_S_SA, TEA6420_S_SB, TEA6300_S_SC, TEA6320_S_SD },
1388 .inputmute = TEA6300_S_GMU,
1389 },
1390 {
1391 .name = "tea6420",
1392 .id = I2C_DRIVERID_TEA6420,
1393 .insmodopt = &tea6420,
1394 .addr_lo = I2C_TEA6420 >> 1,
1395 .addr_hi = I2C_TEA6420 >> 1,
1396 .registers = 1,
1397 .flags = CHIP_HAS_INPUTSEL,
1398
1399 .inputreg = -1,
1400 .inputmap = { TEA6420_S_SA, TEA6420_S_SB, TEA6420_S_SC },
1401 .inputmute = TEA6300_S_GMU,
1402 },
1403 {
1404 .name = "tda8425",
1405 .id = I2C_DRIVERID_TDA8425,
1406 .insmodopt = &tda8425,
1407 .addr_lo = I2C_TDA8425 >> 1,
1408 .addr_hi = I2C_TDA8425 >> 1,
1409 .registers = 9,
1410 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1411
1412 .leftreg = TDA8425_VL,
1413 .rightreg = TDA8425_VR,
1414 .bassreg = TDA8425_BA,
1415 .treblereg = TDA8425_TR,
1416 .volfunc = tda8425_shift10,
1417 .bassfunc = tda8425_shift12,
1418 .treblefunc = tda8425_shift12,
1419
1420 .inputreg = TDA8425_S1,
1421 .inputmap = { TDA8425_S1_CH1, TDA8425_S1_CH1, TDA8425_S1_CH1 },
1422 .inputmute = TDA8425_S1_OFF,
1423
1424 .setmode = tda8425_setmode,
1425 .initialize = tda8425_initialize,
1426 },
1427 {
1428 .name = "pic16c54 (PV951)",
1429 .id = I2C_DRIVERID_PIC16C54_PV951,
1430 .insmodopt = &pic16c54,
1431 .addr_lo = I2C_PIC16C54 >> 1,
1432 .addr_hi = I2C_PIC16C54>> 1,
1433 .registers = 2,
1434 .flags = CHIP_HAS_INPUTSEL,
1435
1436 .inputreg = PIC16C54_REG_MISC,
1437 .inputmap = {PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_TUNER,
1438 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1439 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1440 PIC16C54_MISC_SND_MUTE,PIC16C54_MISC_SND_MUTE,
1441 PIC16C54_MISC_SND_NOTMUTE},
1442 .inputmute = PIC16C54_MISC_SND_MUTE,
1443 },
1444 {
1445 .name = "ta8874z",
1446 .id = -1,
1447 //.id = I2C_DRIVERID_TA8874Z,
1448 .checkit = ta8874z_checkit,
1449 .insmodopt = &ta8874z,
1450 .addr_lo = I2C_TDA9840 >> 1,
1451 .addr_hi = I2C_TDA9840 >> 1,
1452 .registers = 2,
1453
1454 .getmode = ta8874z_getmode,
1455 .setmode = ta8874z_setmode,
1456 .checkmode = generic_checkmode,
1457
1458 .init = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}},
1459 },
1460 { .name = NULL } /* EOF */
1461 };
1462
1463
1464 /* ---------------------------------------------------------------------- */
1465 /* i2c registration */
1466
1467 static int chip_attach(struct i2c_adapter *adap, int addr, int kind)
1468 {
1469 struct CHIPSTATE *chip;
1470 struct CHIPDESC *desc;
1471
1472 chip = kmalloc(sizeof(*chip),GFP_KERNEL);
1473 if (!chip)
1474 return -ENOMEM;
1475 memset(chip,0,sizeof(*chip));
1476 memcpy(&chip->c,&client_template,sizeof(struct i2c_client));
1477 chip->c.adapter = adap;
1478 chip->c.addr = addr;
1479 i2c_set_clientdata(&chip->c, chip);
1480
1481 /* find description for the chip */
1482 dprintk("tvaudio: chip found @ i2c-addr=0x%x\n", addr<<1);
1483 for (desc = chiplist; desc->name != NULL; desc++) {
1484 if (0 == *(desc->insmodopt))
1485 continue;
1486 if (addr < desc->addr_lo ||
1487 addr > desc->addr_hi)
1488 continue;
1489 if (desc->checkit && !desc->checkit(chip))
1490 continue;
1491 break;
1492 }
1493 if (desc->name == NULL) {
1494 dprintk("tvaudio: no matching chip description found\n");
1495 return -EIO;
1496 }
1497 printk("tvaudio: found %s @ 0x%x\n", desc->name, addr<<1);
1498 dprintk("tvaudio: matches:%s%s%s.\n",
1499 (desc->flags & CHIP_HAS_VOLUME) ? " volume" : "",
1500 (desc->flags & CHIP_HAS_BASSTREBLE) ? " bass/treble" : "",
1501 (desc->flags & CHIP_HAS_INPUTSEL) ? " audiomux" : "");
1502
1503 /* fill required data structures */
1504 strcpy(i2c_clientname(&chip->c),desc->name);
1505 chip->type = desc-chiplist;
1506 chip->shadow.count = desc->registers+1;
1507 chip->prevmode = -1;
1508 /* register */
1509 i2c_attach_client(&chip->c);
1510
1511 /* initialization */
1512 if (desc->initialize != NULL)
1513 desc->initialize(chip);
1514 else
1515 chip_cmd(chip,"init",&desc->init);
1516
1517 if (desc->flags & CHIP_HAS_VOLUME) {
1518 chip->left = desc->leftinit ? desc->leftinit : 65535;
1519 chip->right = desc->rightinit ? desc->rightinit : 65535;
1520 chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
1521 chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
1522 }
1523 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1524 chip->treble = desc->trebleinit ? desc->trebleinit : 32768;
1525 chip->bass = desc->bassinit ? desc->bassinit : 32768;
1526 chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
1527 chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
1528 }
1529
1530 chip->tpid = -1;
1531 if (desc->checkmode) {
1532 /* start async thread */
1533 init_timer(&chip->wt);
1534 chip->wt.function = chip_thread_wake;
1535 chip->wt.data = (unsigned long)chip;
1536 init_waitqueue_head(&chip->wq);
1537 init_completion(&chip->texit);
1538 chip->tpid = kernel_thread(chip_thread,(void *)chip,0);
1539 if (chip->tpid < 0)
1540 printk(KERN_WARNING "%s: kernel_thread() failed\n",
1541 i2c_clientname(&chip->c));
1542 wake_up_interruptible(&chip->wq);
1543 }
1544 return 0;
1545 }
1546
1547 static int chip_probe(struct i2c_adapter *adap)
1548 {
1549 /* don't attach on saa7146 based cards,
1550 because dedicated drivers are used */
1551 if (adap->id == I2C_HW_SAA7146)
1552 return 0;
1553 #ifdef I2C_CLASS_TV_ANALOG
1554 if (adap->class & I2C_CLASS_TV_ANALOG)
1555 return i2c_probe(adap, &addr_data, chip_attach);
1556 #else
1557 switch (adap->id) {
1558 case I2C_HW_B_BT848:
1559 case I2C_HW_B_RIVA:
1560 case I2C_HW_SAA7134:
1561 return i2c_probe(adap, &addr_data, chip_attach);
1562 }
1563 #endif
1564 return 0;
1565 }
1566
1567 static int chip_detach(struct i2c_client *client)
1568 {
1569 struct CHIPSTATE *chip = i2c_get_clientdata(client);
1570
1571 del_timer_sync(&chip->wt);
1572 if (chip->tpid >= 0) {
1573 /* shutdown async thread */
1574 chip->done = 1;
1575 wake_up_interruptible(&chip->wq);
1576 wait_for_completion(&chip->texit);
1577 }
1578
1579 i2c_detach_client(&chip->c);
1580 kfree(chip);
1581 return 0;
1582 }
1583
1584 /* ---------------------------------------------------------------------- */
1585 /* video4linux interface */
1586
1587 static int chip_command(struct i2c_client *client,
1588 unsigned int cmd, void *arg)
1589 {
1590 __u16 *sarg = arg;
1591 struct CHIPSTATE *chip = i2c_get_clientdata(client);
1592 struct CHIPDESC *desc = chiplist + chip->type;
1593
1594 dprintk("%s: chip_command 0x%x\n",i2c_clientname(&chip->c),cmd);
1595
1596 switch (cmd) {
1597 case AUDC_SET_INPUT:
1598 if (desc->flags & CHIP_HAS_INPUTSEL) {
1599 if (*sarg & 0x80)
1600 chip_write_masked(chip,desc->inputreg,desc->inputmute,desc->inputmask);
1601 else
1602 chip_write_masked(chip,desc->inputreg,desc->inputmap[*sarg],desc->inputmask);
1603 }
1604 break;
1605
1606 case AUDC_SET_RADIO:
1607 dprintk(KERN_DEBUG "tvaudio: AUDC_SET_RADIO\n");
1608 chip->norm = VIDEO_MODE_RADIO;
1609 chip->watch_stereo = 0;
1610 /* del_timer(&chip->wt); */
1611 break;
1612
1613 /* --- v4l ioctls --- */
1614 /* take care: bttv does userspace copying, we'll get a
1615 kernel pointer here... */
1616 case VIDIOCGAUDIO:
1617 {
1618 struct video_audio *va = arg;
1619
1620 if (desc->flags & CHIP_HAS_VOLUME) {
1621 va->flags |= VIDEO_AUDIO_VOLUME;
1622 va->volume = max(chip->left,chip->right);
1623 if (va->volume)
1624 va->balance = (32768*min(chip->left,chip->right))/
1625 va->volume;
1626 else
1627 va->balance = 32768;
1628 }
1629 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1630 va->flags |= VIDEO_AUDIO_BASS | VIDEO_AUDIO_TREBLE;
1631 va->bass = chip->bass;
1632 va->treble = chip->treble;
1633 }
1634 if (chip->norm != VIDEO_MODE_RADIO) {
1635 if (desc->getmode)
1636 va->mode = desc->getmode(chip);
1637 else
1638 va->mode = VIDEO_SOUND_MONO;
1639 }
1640 break;
1641 }
1642
1643 case VIDIOCSAUDIO:
1644 {
1645 struct video_audio *va = arg;
1646
1647 if (desc->flags & CHIP_HAS_VOLUME) {
1648 chip->left = (min(65536 - va->balance,32768) *
1649 va->volume) / 32768;
1650 chip->right = (min(va->balance,(__u16)32768) *
1651 va->volume) / 32768;
1652 chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
1653 chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
1654 }
1655 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1656 chip->bass = va->bass;
1657 chip->treble = va->treble;
1658 chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
1659 chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
1660 }
1661 if (desc->setmode && va->mode) {
1662 chip->watch_stereo = 0;
1663 /* del_timer(&chip->wt); */
1664 chip->mode = va->mode;
1665 desc->setmode(chip,va->mode);
1666 }
1667 break;
1668 }
1669 case VIDIOCSCHAN:
1670 {
1671 struct video_channel *vc = arg;
1672
1673 dprintk(KERN_DEBUG "tvaudio: VIDIOCSCHAN\n");
1674 chip->norm = vc->norm;
1675 break;
1676 }
1677 case VIDIOCSFREQ:
1678 {
1679 chip->mode = 0; /* automatic */
1680 if (desc->checkmode) {
1681 desc->setmode(chip,VIDEO_SOUND_MONO);
1682 if (chip->prevmode != VIDEO_SOUND_MONO)
1683 chip->prevmode = -1; /* reset previous mode */
1684 mod_timer(&chip->wt, jiffies+2*HZ);
1685 /* the thread will call checkmode() later */
1686 }
1687 }
1688 }
1689 return 0;
1690 }
1691
1692
1693 static struct i2c_driver driver = {
1694 .owner = THIS_MODULE,
1695 .name = "generic i2c audio driver",
1696 .id = I2C_DRIVERID_TVAUDIO,
1697 .flags = I2C_DF_NOTIFY,
1698 .attach_adapter = chip_probe,
1699 .detach_client = chip_detach,
1700 .command = chip_command,
1701 };
1702
1703 static struct i2c_client client_template =
1704 {
1705 I2C_DEVNAME("(unset)"),
1706 .flags = I2C_CLIENT_ALLOW_USE,
1707 .driver = &driver,
1708 };
1709
1710 static int __init audiochip_init_module(void)
1711 {
1712 struct CHIPDESC *desc;
1713 printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux driver\n");
1714 printk(KERN_INFO "tvaudio: known chips: ");
1715 for (desc = chiplist; desc->name != NULL; desc++)
1716 printk("%s%s", (desc == chiplist) ? "" : ",",desc->name);
1717 printk("\n");
1718
1719 return i2c_add_driver(&driver);
1720 }
1721
1722 static void __exit audiochip_cleanup_module(void)
1723 {
1724 i2c_del_driver(&driver);
1725 }
1726
1727 module_init(audiochip_init_module);
1728 module_exit(audiochip_cleanup_module);
1729
1730 /*
1731 * Local variables:
1732 * c-basic-offset: 8
1733 * End:
1734 */
Support for the Chinese Samsung S3C2440 based development boards