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[PATCH] W1: w1_netlink: New init/fini netlink callbacks.
[linux-2.6/verdex.git] / drivers / media / video / tvaudio.c
blob258724b2d6d21a2001450996a3ac23541bc5afdb
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", chip->c.name, val);
166 chip->shadow.bytes[1] = val;
167 buffer[0] = val;
168 if (1 != i2c_master_send(&chip->c,buffer,1)) {
169 printk(KERN_WARNING "%s: I/O error (write 0x%x)\n",
170 chip->c.name, val);
171 return -1;
172 }
173 } else {
174 dprintk("%s: chip_write: reg%d=0x%x\n",
175 chip->c.name, subaddr, val);
176 chip->shadow.bytes[subaddr+1] = val;
177 buffer[0] = subaddr;
178 buffer[1] = val;
179 if (2 != i2c_master_send(&chip->c,buffer,2)) {
180 printk(KERN_WARNING "%s: I/O error (write reg%d=0x%x)\n",
181 chip->c.name, subaddr, val);
182 return -1;
183 }
184 }
185 return 0;
186 }
187
188 static int chip_write_masked(struct CHIPSTATE *chip, int subaddr, int val, int mask)
189 {
190 if (mask != 0) {
191 if (-1 == subaddr) {
192 val = (chip->shadow.bytes[1] & ~mask) | (val & mask);
193 } else {
194 val = (chip->shadow.bytes[subaddr+1] & ~mask) | (val & mask);
195 }
196 }
197 return chip_write(chip, subaddr, val);
198 }
199
200 static int chip_read(struct CHIPSTATE *chip)
201 {
202 unsigned char buffer;
203
204 if (1 != i2c_master_recv(&chip->c,&buffer,1)) {
205 printk(KERN_WARNING "%s: I/O error (read)\n", chip->c.name);
206 return -1;
207 }
208 dprintk("%s: chip_read: 0x%x\n", chip->c.name, buffer);
209 return buffer;
210 }
211
212 static int chip_read2(struct CHIPSTATE *chip, int subaddr)
213 {
214 unsigned char write[1];
215 unsigned char read[1];
216 struct i2c_msg msgs[2] = {
217 { chip->c.addr, 0, 1, write },
218 { chip->c.addr, I2C_M_RD, 1, read }
219 };
220 write[0] = subaddr;
221
222 if (2 != i2c_transfer(chip->c.adapter,msgs,2)) {
223 printk(KERN_WARNING "%s: I/O error (read2)\n", chip->c.name);
224 return -1;
225 }
226 dprintk("%s: chip_read2: reg%d=0x%x\n",
227 chip->c.name, subaddr, read[0]);
228 return read[0];
229 }
230
231 static int chip_cmd(struct CHIPSTATE *chip, char *name, audiocmd *cmd)
232 {
233 int i;
234
235 if (0 == cmd->count)
236 return 0;
237
238 /* update our shadow register set; print bytes if (debug > 0) */
239 dprintk("%s: chip_cmd(%s): reg=%d, data:",
240 chip->c.name, name, cmd->bytes[0]);
241 for (i = 1; i < cmd->count; i++) {
242 dprintk(" 0x%x",cmd->bytes[i]);
243 chip->shadow.bytes[i+cmd->bytes[0]] = cmd->bytes[i];
244 }
245 dprintk("\n");
246
247 /* send data to the chip */
248 if (cmd->count != i2c_master_send(&chip->c,cmd->bytes,cmd->count)) {
249 printk(KERN_WARNING "%s: I/O error (%s)\n", chip->c.name, name);
250 return -1;
251 }
252 return 0;
253 }
254
255 /* ---------------------------------------------------------------------- */
256 /* kernel thread for doing i2c stuff asyncronly
257 * right now it is used only to check the audio mode (mono/stereo/whatever)
258 * some time after switching to another TV channel, then turn on stereo
259 * if available, ...
260 */
261
262 static void chip_thread_wake(unsigned long data)
263 {
264 struct CHIPSTATE *chip = (struct CHIPSTATE*)data;
265 wake_up_interruptible(&chip->wq);
266 }
267
268 static int chip_thread(void *data)
269 {
270 DECLARE_WAITQUEUE(wait, current);
271 struct CHIPSTATE *chip = data;
272 struct CHIPDESC *desc = chiplist + chip->type;
273
274 daemonize("%s", chip->c.name);
275 allow_signal(SIGTERM);
276 dprintk("%s: thread started\n", chip->c.name);
277
278 for (;;) {
279 add_wait_queue(&chip->wq, &wait);
280 if (!chip->done) {
281 set_current_state(TASK_INTERRUPTIBLE);
282 schedule();
283 }
284 remove_wait_queue(&chip->wq, &wait);
285 try_to_freeze();
286 if (chip->done || signal_pending(current))
287 break;
288 dprintk("%s: thread wakeup\n", chip->c.name);
289
290 /* don't do anything for radio or if mode != auto */
291 if (chip->norm == VIDEO_MODE_RADIO || chip->mode != 0)
292 continue;
293
294 /* have a look what's going on */
295 desc->checkmode(chip);
296
297 /* schedule next check */
298 mod_timer(&chip->wt, jiffies+2*HZ);
299 }
300
301 dprintk("%s: thread exiting\n", chip->c.name);
302 complete_and_exit(&chip->texit, 0);
303 return 0;
304 }
305
306 static void generic_checkmode(struct CHIPSTATE *chip)
307 {
308 struct CHIPDESC *desc = chiplist + chip->type;
309 int mode = desc->getmode(chip);
310
311 if (mode == chip->prevmode)
312 return;
313
314 dprintk("%s: thread checkmode\n", chip->c.name);
315 chip->prevmode = mode;
316
317 if (mode & VIDEO_SOUND_STEREO)
318 desc->setmode(chip,VIDEO_SOUND_STEREO);
319 else if (mode & VIDEO_SOUND_LANG1)
320 desc->setmode(chip,VIDEO_SOUND_LANG1);
321 else if (mode & VIDEO_SOUND_LANG2)
322 desc->setmode(chip,VIDEO_SOUND_LANG2);
323 else
324 desc->setmode(chip,VIDEO_SOUND_MONO);
325 }
326
327 /* ---------------------------------------------------------------------- */
328 /* audio chip descriptions - defines+functions for tda9840 */
329
330 #define TDA9840_SW 0x00
331 #define TDA9840_LVADJ 0x02
332 #define TDA9840_STADJ 0x03
333 #define TDA9840_TEST 0x04
334
335 #define TDA9840_MONO 0x10
336 #define TDA9840_STEREO 0x2a
337 #define TDA9840_DUALA 0x12
338 #define TDA9840_DUALB 0x1e
339 #define TDA9840_DUALAB 0x1a
340 #define TDA9840_DUALBA 0x16
341 #define TDA9840_EXTERNAL 0x7a
342
343 #define TDA9840_DS_DUAL 0x20 /* Dual sound identified */
344 #define TDA9840_ST_STEREO 0x40 /* Stereo sound identified */
345 #define TDA9840_PONRES 0x80 /* Power-on reset detected if = 1 */
346
347 #define TDA9840_TEST_INT1SN 0x1 /* Integration time 0.5s when set */
348 #define TDA9840_TEST_INTFU 0x02 /* Disables integrator function */
349
350 static int tda9840_getmode(struct CHIPSTATE *chip)
351 {
352 int val, mode;
353
354 val = chip_read(chip);
355 mode = VIDEO_SOUND_MONO;
356 if (val & TDA9840_DS_DUAL)
357 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
358 if (val & TDA9840_ST_STEREO)
359 mode |= VIDEO_SOUND_STEREO;
360
361 dprintk ("tda9840_getmode(): raw chip read: %d, return: %d\n",
362 val, mode);
363 return mode;
364 }
365
366 static void tda9840_setmode(struct CHIPSTATE *chip, int mode)
367 {
368 int update = 1;
369 int t = chip->shadow.bytes[TDA9840_SW + 1] & ~0x7e;
370
371 switch (mode) {
372 case VIDEO_SOUND_MONO:
373 t |= TDA9840_MONO;
374 break;
375 case VIDEO_SOUND_STEREO:
376 t |= TDA9840_STEREO;
377 break;
378 case VIDEO_SOUND_LANG1:
379 t |= TDA9840_DUALA;
380 break;
381 case VIDEO_SOUND_LANG2:
382 t |= TDA9840_DUALB;
383 break;
384 default:
385 update = 0;
386 }
387
388 if (update)
389 chip_write(chip, TDA9840_SW, t);
390 }
391
392 /* ---------------------------------------------------------------------- */
393 /* audio chip descriptions - defines+functions for tda985x */
394
395 /* subaddresses for TDA9855 */
396 #define TDA9855_VR 0x00 /* Volume, right */
397 #define TDA9855_VL 0x01 /* Volume, left */
398 #define TDA9855_BA 0x02 /* Bass */
399 #define TDA9855_TR 0x03 /* Treble */
400 #define TDA9855_SW 0x04 /* Subwoofer - not connected on DTV2000 */
401
402 /* subaddresses for TDA9850 */
403 #define TDA9850_C4 0x04 /* Control 1 for TDA9850 */
404
405 /* subaddesses for both chips */
406 #define TDA985x_C5 0x05 /* Control 2 for TDA9850, Control 1 for TDA9855 */
407 #define TDA985x_C6 0x06 /* Control 3 for TDA9850, Control 2 for TDA9855 */
408 #define TDA985x_C7 0x07 /* Control 4 for TDA9850, Control 3 for TDA9855 */
409 #define TDA985x_A1 0x08 /* Alignment 1 for both chips */
410 #define TDA985x_A2 0x09 /* Alignment 2 for both chips */
411 #define TDA985x_A3 0x0a /* Alignment 3 for both chips */
412
413 /* Masks for bits in TDA9855 subaddresses */
414 /* 0x00 - VR in TDA9855 */
415 /* 0x01 - VL in TDA9855 */
416 /* lower 7 bits control gain from -71dB (0x28) to 16dB (0x7f)
417 * in 1dB steps - mute is 0x27 */
418
419
420 /* 0x02 - BA in TDA9855 */
421 /* lower 5 bits control bass gain from -12dB (0x06) to 16.5dB (0x19)
422 * in .5dB steps - 0 is 0x0E */
423
424
425 /* 0x03 - TR in TDA9855 */
426 /* 4 bits << 1 control treble gain from -12dB (0x3) to 12dB (0xb)
427 * in 3dB steps - 0 is 0x7 */
428
429 /* Masks for bits in both chips' subaddresses */
430 /* 0x04 - SW in TDA9855, C4/Control 1 in TDA9850 */
431 /* Unique to TDA9855: */
432 /* 4 bits << 2 control subwoofer/surround gain from -14db (0x1) to 14db (0xf)
433 * in 3dB steps - mute is 0x0 */
434
435 /* Unique to TDA9850: */
436 /* lower 4 bits control stereo noise threshold, over which stereo turns off
437 * set to values of 0x00 through 0x0f for Ster1 through Ster16 */
438
439
440 /* 0x05 - C5 - Control 1 in TDA9855 , Control 2 in TDA9850*/
441 /* Unique to TDA9855: */
442 #define TDA9855_MUTE 1<<7 /* GMU, Mute at outputs */
443 #define TDA9855_AVL 1<<6 /* AVL, Automatic Volume Level */
444 #define TDA9855_LOUD 1<<5 /* Loudness, 1==off */
445 #define TDA9855_SUR 1<<3 /* Surround / Subwoofer 1==.5(L-R) 0==.5(L+R) */
446 /* Bits 0 to 3 select various combinations
447 * of line in and line out, only the
448 * interesting ones are defined */
449 #define TDA9855_EXT 1<<2 /* Selects inputs LIR and LIL. Pins 41 & 12 */
450 #define TDA9855_INT 0 /* Selects inputs LOR and LOL. (internal) */
451
452 /* Unique to TDA9850: */
453 /* lower 4 bits contol SAP noise threshold, over which SAP turns off
454 * set to values of 0x00 through 0x0f for SAP1 through SAP16 */
455
456
457 /* 0x06 - C6 - Control 2 in TDA9855, Control 3 in TDA9850 */
458 /* Common to TDA9855 and TDA9850: */
459 #define TDA985x_SAP 3<<6 /* Selects SAP output, mute if not received */
460 #define TDA985x_STEREO 1<<6 /* Selects Stereo ouput, mono if not received */
461 #define TDA985x_MONO 0 /* Forces Mono output */
462 #define TDA985x_LMU 1<<3 /* Mute (LOR/LOL for 9855, OUTL/OUTR for 9850) */
463
464 /* Unique to TDA9855: */
465 #define TDA9855_TZCM 1<<5 /* If set, don't mute till zero crossing */
466 #define TDA9855_VZCM 1<<4 /* If set, don't change volume till zero crossing*/
467 #define TDA9855_LINEAR 0 /* Linear Stereo */
468 #define TDA9855_PSEUDO 1 /* Pseudo Stereo */
469 #define TDA9855_SPAT_30 2 /* Spatial Stereo, 30% anti-phase crosstalk */
470 #define TDA9855_SPAT_50 3 /* Spatial Stereo, 52% anti-phase crosstalk */
471 #define TDA9855_E_MONO 7 /* Forced mono - mono select elseware, so useless*/
472
473 /* 0x07 - C7 - Control 3 in TDA9855, Control 4 in TDA9850 */
474 /* Common to both TDA9855 and TDA9850: */
475 /* lower 4 bits control input gain from -3.5dB (0x0) to 4dB (0xF)
476 * in .5dB steps - 0dB is 0x7 */
477
478 /* 0x08, 0x09 - A1 and A2 (read/write) */
479 /* Common to both TDA9855 and TDA9850: */
480 /* lower 5 bites are wideband and spectral expander alignment
481 * from 0x00 to 0x1f - nominal at 0x0f and 0x10 (read/write) */
482 #define TDA985x_STP 1<<5 /* Stereo Pilot/detect (read-only) */
483 #define TDA985x_SAPP 1<<6 /* SAP Pilot/detect (read-only) */
484 #define TDA985x_STS 1<<7 /* Stereo trigger 1= <35mV 0= <30mV (write-only)*/
485
486 /* 0x0a - A3 */
487 /* Common to both TDA9855 and TDA9850: */
488 /* lower 3 bits control timing current for alignment: -30% (0x0), -20% (0x1),
489 * -10% (0x2), nominal (0x3), +10% (0x6), +20% (0x5), +30% (0x4) */
490 #define TDA985x_ADJ 1<<7 /* Stereo adjust on/off (wideband and spectral */
491
492 static int tda9855_volume(int val) { return val/0x2e8+0x27; }
493 static int tda9855_bass(int val) { return val/0xccc+0x06; }
494 static int tda9855_treble(int val) { return (val/0x1c71+0x3)<<1; }
495
496 static int tda985x_getmode(struct CHIPSTATE *chip)
497 {
498 int mode;
499
500 mode = ((TDA985x_STP | TDA985x_SAPP) &
501 chip_read(chip)) >> 4;
502 /* Add mono mode regardless of SAP and stereo */
503 /* Allows forced mono */
504 return mode | VIDEO_SOUND_MONO;
505 }
506
507 static void tda985x_setmode(struct CHIPSTATE *chip, int mode)
508 {
509 int update = 1;
510 int c6 = chip->shadow.bytes[TDA985x_C6+1] & 0x3f;
511
512 switch (mode) {
513 case VIDEO_SOUND_MONO:
514 c6 |= TDA985x_MONO;
515 break;
516 case VIDEO_SOUND_STEREO:
517 c6 |= TDA985x_STEREO;
518 break;
519 case VIDEO_SOUND_LANG1:
520 c6 |= TDA985x_SAP;
521 break;
522 default:
523 update = 0;
524 }
525 if (update)
526 chip_write(chip,TDA985x_C6,c6);
527 }
528
529
530 /* ---------------------------------------------------------------------- */
531 /* audio chip descriptions - defines+functions for tda9873h */
532
533 /* Subaddresses for TDA9873H */
534
535 #define TDA9873_SW 0x00 /* Switching */
536 #define TDA9873_AD 0x01 /* Adjust */
537 #define TDA9873_PT 0x02 /* Port */
538
539 /* Subaddress 0x00: Switching Data
540 * B7..B0:
541 *
542 * B1, B0: Input source selection
543 * 0, 0 internal
544 * 1, 0 external stereo
545 * 0, 1 external mono
546 */
547 #define TDA9873_INP_MASK 3
548 #define TDA9873_INTERNAL 0
549 #define TDA9873_EXT_STEREO 2
550 #define TDA9873_EXT_MONO 1
551
552 /* B3, B2: output signal select
553 * B4 : transmission mode
554 * 0, 0, 1 Mono
555 * 1, 0, 0 Stereo
556 * 1, 1, 1 Stereo (reversed channel)
557 * 0, 0, 0 Dual AB
558 * 0, 0, 1 Dual AA
559 * 0, 1, 0 Dual BB
560 * 0, 1, 1 Dual BA
561 */
562
563 #define TDA9873_TR_MASK (7 << 2)
564 #define TDA9873_TR_MONO 4
565 #define TDA9873_TR_STEREO 1 << 4
566 #define TDA9873_TR_REVERSE (1 << 3) & (1 << 2)
567 #define TDA9873_TR_DUALA 1 << 2
568 #define TDA9873_TR_DUALB 1 << 3
569
570 /* output level controls
571 * B5: output level switch (0 = reduced gain, 1 = normal gain)
572 * B6: mute (1 = muted)
573 * B7: auto-mute (1 = auto-mute enabled)
574 */
575
576 #define TDA9873_GAIN_NORMAL 1 << 5
577 #define TDA9873_MUTE 1 << 6
578 #define TDA9873_AUTOMUTE 1 << 7
579
580 /* Subaddress 0x01: Adjust/standard */
581
582 /* Lower 4 bits (C3..C0) control stereo adjustment on R channel (-0.6 - +0.7 dB)
583 * Recommended value is +0 dB
584 */
585
586 #define TDA9873_STEREO_ADJ 0x06 /* 0dB gain */
587
588 /* Bits C6..C4 control FM stantard
589 * C6, C5, C4
590 * 0, 0, 0 B/G (PAL FM)
591 * 0, 0, 1 M
592 * 0, 1, 0 D/K(1)
593 * 0, 1, 1 D/K(2)
594 * 1, 0, 0 D/K(3)
595 * 1, 0, 1 I
596 */
597 #define TDA9873_BG 0
598 #define TDA9873_M 1
599 #define TDA9873_DK1 2
600 #define TDA9873_DK2 3
601 #define TDA9873_DK3 4
602 #define TDA9873_I 5
603
604 /* C7 controls identification response time (1=fast/0=normal)
605 */
606 #define TDA9873_IDR_NORM 0
607 #define TDA9873_IDR_FAST 1 << 7
608
609
610 /* Subaddress 0x02: Port data */
611
612 /* E1, E0 free programmable ports P1/P2
613 0, 0 both ports low
614 0, 1 P1 high
615 1, 0 P2 high
616 1, 1 both ports high
617 */
618
619 #define TDA9873_PORTS 3
620
621 /* E2: test port */
622 #define TDA9873_TST_PORT 1 << 2
623
624 /* E5..E3 control mono output channel (together with transmission mode bit B4)
625 *
626 * E5 E4 E3 B4 OUTM
627 * 0 0 0 0 mono
628 * 0 0 1 0 DUAL B
629 * 0 1 0 1 mono (from stereo decoder)
630 */
631 #define TDA9873_MOUT_MONO 0
632 #define TDA9873_MOUT_FMONO 0
633 #define TDA9873_MOUT_DUALA 0
634 #define TDA9873_MOUT_DUALB 1 << 3
635 #define TDA9873_MOUT_ST 1 << 4
636 #define TDA9873_MOUT_EXTM (1 << 4 ) & (1 << 3)
637 #define TDA9873_MOUT_EXTL 1 << 5
638 #define TDA9873_MOUT_EXTR (1 << 5 ) & (1 << 3)
639 #define TDA9873_MOUT_EXTLR (1 << 5 ) & (1 << 4)
640 #define TDA9873_MOUT_MUTE (1 << 5 ) & (1 << 4) & (1 << 3)
641
642 /* Status bits: (chip read) */
643 #define TDA9873_PONR 0 /* Power-on reset detected if = 1 */
644 #define TDA9873_STEREO 2 /* Stereo sound is identified */
645 #define TDA9873_DUAL 4 /* Dual sound is identified */
646
647 static int tda9873_getmode(struct CHIPSTATE *chip)
648 {
649 int val,mode;
650
651 val = chip_read(chip);
652 mode = VIDEO_SOUND_MONO;
653 if (val & TDA9873_STEREO)
654 mode |= VIDEO_SOUND_STEREO;
655 if (val & TDA9873_DUAL)
656 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
657 dprintk ("tda9873_getmode(): raw chip read: %d, return: %d\n",
658 val, mode);
659 return mode;
660 }
661
662 static void tda9873_setmode(struct CHIPSTATE *chip, int mode)
663 {
664 int sw_data = chip->shadow.bytes[TDA9873_SW+1] & ~ TDA9873_TR_MASK;
665 /* int adj_data = chip->shadow.bytes[TDA9873_AD+1] ; */
666
667 if ((sw_data & TDA9873_INP_MASK) != TDA9873_INTERNAL) {
668 dprintk("tda9873_setmode(): external input\n");
669 return;
670 }
671
672 dprintk("tda9873_setmode(): chip->shadow.bytes[%d] = %d\n", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]);
673 dprintk("tda9873_setmode(): sw_data = %d\n", sw_data);
674
675 switch (mode) {
676 case VIDEO_SOUND_MONO:
677 sw_data |= TDA9873_TR_MONO;
678 break;
679 case VIDEO_SOUND_STEREO:
680 sw_data |= TDA9873_TR_STEREO;
681 break;
682 case VIDEO_SOUND_LANG1:
683 sw_data |= TDA9873_TR_DUALA;
684 break;
685 case VIDEO_SOUND_LANG2:
686 sw_data |= TDA9873_TR_DUALB;
687 break;
688 default:
689 chip->mode = 0;
690 return;
691 }
692
693 chip_write(chip, TDA9873_SW, sw_data);
694 dprintk("tda9873_setmode(): req. mode %d; chip_write: %d\n",
695 mode, sw_data);
696 }
697
698 static int tda9873_checkit(struct CHIPSTATE *chip)
699 {
700 int rc;
701
702 if (-1 == (rc = chip_read2(chip,254)))
703 return 0;
704 return (rc & ~0x1f) == 0x80;
705 }
706
707
708 /* ---------------------------------------------------------------------- */
709 /* audio chip description - defines+functions for tda9874h and tda9874a */
710 /* Dariusz Kowalewski <darekk@automex.pl> */
711
712 /* Subaddresses for TDA9874H and TDA9874A (slave rx) */
713 #define TDA9874A_AGCGR 0x00 /* AGC gain */
714 #define TDA9874A_GCONR 0x01 /* general config */
715 #define TDA9874A_MSR 0x02 /* monitor select */
716 #define TDA9874A_C1FRA 0x03 /* carrier 1 freq. */
717 #define TDA9874A_C1FRB 0x04 /* carrier 1 freq. */
718 #define TDA9874A_C1FRC 0x05 /* carrier 1 freq. */
719 #define TDA9874A_C2FRA 0x06 /* carrier 2 freq. */
720 #define TDA9874A_C2FRB 0x07 /* carrier 2 freq. */
721 #define TDA9874A_C2FRC 0x08 /* carrier 2 freq. */
722 #define TDA9874A_DCR 0x09 /* demodulator config */
723 #define TDA9874A_FMER 0x0a /* FM de-emphasis */
724 #define TDA9874A_FMMR 0x0b /* FM dematrix */
725 #define TDA9874A_C1OLAR 0x0c /* ch.1 output level adj. */
726 #define TDA9874A_C2OLAR 0x0d /* ch.2 output level adj. */
727 #define TDA9874A_NCONR 0x0e /* NICAM config */
728 #define TDA9874A_NOLAR 0x0f /* NICAM output level adj. */
729 #define TDA9874A_NLELR 0x10 /* NICAM lower error limit */
730 #define TDA9874A_NUELR 0x11 /* NICAM upper error limit */
731 #define TDA9874A_AMCONR 0x12 /* audio mute control */
732 #define TDA9874A_SDACOSR 0x13 /* stereo DAC output select */
733 #define TDA9874A_AOSR 0x14 /* analog output select */
734 #define TDA9874A_DAICONR 0x15 /* digital audio interface config */
735 #define TDA9874A_I2SOSR 0x16 /* I2S-bus output select */
736 #define TDA9874A_I2SOLAR 0x17 /* I2S-bus output level adj. */
737 #define TDA9874A_MDACOSR 0x18 /* mono DAC output select (tda9874a) */
738 #define TDA9874A_ESP 0xFF /* easy standard progr. (tda9874a) */
739
740 /* Subaddresses for TDA9874H and TDA9874A (slave tx) */
741 #define TDA9874A_DSR 0x00 /* device status */
742 #define TDA9874A_NSR 0x01 /* NICAM status */
743 #define TDA9874A_NECR 0x02 /* NICAM error count */
744 #define TDA9874A_DR1 0x03 /* add. data LSB */
745 #define TDA9874A_DR2 0x04 /* add. data MSB */
746 #define TDA9874A_LLRA 0x05 /* monitor level read-out LSB */
747 #define TDA9874A_LLRB 0x06 /* monitor level read-out MSB */
748 #define TDA9874A_SIFLR 0x07 /* SIF level */
749 #define TDA9874A_TR2 252 /* test reg. 2 */
750 #define TDA9874A_TR1 253 /* test reg. 1 */
751 #define TDA9874A_DIC 254 /* device id. code */
752 #define TDA9874A_SIC 255 /* software id. code */
753
754
755 static int tda9874a_mode = 1; /* 0: A2, 1: NICAM */
756 static int tda9874a_GCONR = 0xc0; /* default config. input pin: SIFSEL=0 */
757 static int tda9874a_NCONR = 0x01; /* default NICAM config.: AMSEL=0,AMUTE=1 */
758 static int tda9874a_ESP = 0x07; /* default standard: NICAM D/K */
759 static int tda9874a_dic = -1; /* device id. code */
760
761 /* insmod options for tda9874a */
762 static unsigned int tda9874a_SIF = UNSET;
763 static unsigned int tda9874a_AMSEL = UNSET;
764 static unsigned int tda9874a_STD = UNSET;
765 module_param(tda9874a_SIF, int, 0444);
766 module_param(tda9874a_AMSEL, int, 0444);
767 module_param(tda9874a_STD, int, 0444);
768
769 /*
770 * initialization table for tda9874 decoder:
771 * - carrier 1 freq. registers (3 bytes)
772 * - carrier 2 freq. registers (3 bytes)
773 * - demudulator config register
774 * - FM de-emphasis register (slow identification mode)
775 * Note: frequency registers must be written in single i2c transfer.
776 */
777 static struct tda9874a_MODES {
778 char *name;
779 audiocmd cmd;
780 } tda9874a_modelist[9] = {
781 { "A2, B/G",
782 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x77,0xA0,0x00, 0x00,0x00 }} },
783 { "A2, M (Korea)",
784 { 9, { TDA9874A_C1FRA, 0x5D,0xC0,0x00, 0x62,0x6A,0xAA, 0x20,0x22 }} },
785 { "A2, D/K (1)",
786 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x82,0x60,0x00, 0x00,0x00 }} },
787 { "A2, D/K (2)",
788 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x8C,0x75,0x55, 0x00,0x00 }} },
789 { "A2, D/K (3)",
790 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x77,0xA0,0x00, 0x00,0x00 }} },
791 { "NICAM, I",
792 { 9, { TDA9874A_C1FRA, 0x7D,0x00,0x00, 0x88,0x8A,0xAA, 0x08,0x33 }} },
793 { "NICAM, B/G",
794 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x79,0xEA,0xAA, 0x08,0x33 }} },
795 { "NICAM, D/K", /* default */
796 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x08,0x33 }} },
797 { "NICAM, L",
798 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x09,0x33 }} }
799 };
800
801 static int tda9874a_setup(struct CHIPSTATE *chip)
802 {
803 chip_write(chip, TDA9874A_AGCGR, 0x00); /* 0 dB */
804 chip_write(chip, TDA9874A_GCONR, tda9874a_GCONR);
805 chip_write(chip, TDA9874A_MSR, (tda9874a_mode) ? 0x03:0x02);
806 if(tda9874a_dic == 0x11) {
807 chip_write(chip, TDA9874A_FMMR, 0x80);
808 } else { /* dic == 0x07 */
809 chip_cmd(chip,"tda9874_modelist",&tda9874a_modelist[tda9874a_STD].cmd);
810 chip_write(chip, TDA9874A_FMMR, 0x00);
811 }
812 chip_write(chip, TDA9874A_C1OLAR, 0x00); /* 0 dB */
813 chip_write(chip, TDA9874A_C2OLAR, 0x00); /* 0 dB */
814 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
815 chip_write(chip, TDA9874A_NOLAR, 0x00); /* 0 dB */
816 /* Note: If signal quality is poor you may want to change NICAM */
817 /* error limit registers (NLELR and NUELR) to some greater values. */
818 /* Then the sound would remain stereo, but won't be so clear. */
819 chip_write(chip, TDA9874A_NLELR, 0x14); /* default */
820 chip_write(chip, TDA9874A_NUELR, 0x50); /* default */
821
822 if(tda9874a_dic == 0x11) {
823 chip_write(chip, TDA9874A_AMCONR, 0xf9);
824 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
825 chip_write(chip, TDA9874A_AOSR, 0x80);
826 chip_write(chip, TDA9874A_MDACOSR, (tda9874a_mode) ? 0x82:0x80);
827 chip_write(chip, TDA9874A_ESP, tda9874a_ESP);
828 } else { /* dic == 0x07 */
829 chip_write(chip, TDA9874A_AMCONR, 0xfb);
830 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
831 chip_write(chip, TDA9874A_AOSR, 0x00); // or 0x10
832 }
833 dprintk("tda9874a_setup(): %s [0x%02X].\n",
834 tda9874a_modelist[tda9874a_STD].name,tda9874a_STD);
835 return 1;
836 }
837
838 static int tda9874a_getmode(struct CHIPSTATE *chip)
839 {
840 int dsr,nsr,mode;
841 int necr; /* just for debugging */
842
843 mode = VIDEO_SOUND_MONO;
844
845 if(-1 == (dsr = chip_read2(chip,TDA9874A_DSR)))
846 return mode;
847 if(-1 == (nsr = chip_read2(chip,TDA9874A_NSR)))
848 return mode;
849 if(-1 == (necr = chip_read2(chip,TDA9874A_NECR)))
850 return mode;
851
852 /* need to store dsr/nsr somewhere */
853 chip->shadow.bytes[MAXREGS-2] = dsr;
854 chip->shadow.bytes[MAXREGS-1] = nsr;
855
856 if(tda9874a_mode) {
857 /* Note: DSR.RSSF and DSR.AMSTAT bits are also checked.
858 * If NICAM auto-muting is enabled, DSR.AMSTAT=1 indicates
859 * that sound has (temporarily) switched from NICAM to
860 * mono FM (or AM) on 1st sound carrier due to high NICAM bit
861 * error count. So in fact there is no stereo in this case :-(
862 * But changing the mode to VIDEO_SOUND_MONO would switch
863 * external 4052 multiplexer in audio_hook().
864 */
865 if(nsr & 0x02) /* NSR.S/MB=1 */
866 mode |= VIDEO_SOUND_STEREO;
867 if(nsr & 0x01) /* NSR.D/SB=1 */
868 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
869 } else {
870 if(dsr & 0x02) /* DSR.IDSTE=1 */
871 mode |= VIDEO_SOUND_STEREO;
872 if(dsr & 0x04) /* DSR.IDDUA=1 */
873 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
874 }
875
876 dprintk("tda9874a_getmode(): DSR=0x%X, NSR=0x%X, NECR=0x%X, return: %d.\n",
877 dsr, nsr, necr, mode);
878 return mode;
879 }
880
881 static void tda9874a_setmode(struct CHIPSTATE *chip, int mode)
882 {
883 /* Disable/enable NICAM auto-muting (based on DSR.RSSF status bit). */
884 /* If auto-muting is disabled, we can hear a signal of degrading quality. */
885 if(tda9874a_mode) {
886 if(chip->shadow.bytes[MAXREGS-2] & 0x20) /* DSR.RSSF=1 */
887 tda9874a_NCONR &= 0xfe; /* enable */
888 else
889 tda9874a_NCONR |= 0x01; /* disable */
890 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
891 }
892
893 /* Note: TDA9874A supports automatic FM dematrixing (FMMR register)
894 * and has auto-select function for audio output (AOSR register).
895 * Old TDA9874H doesn't support these features.
896 * TDA9874A also has additional mono output pin (OUTM), which
897 * on same (all?) tv-cards is not used, anyway (as well as MONOIN).
898 */
899 if(tda9874a_dic == 0x11) {
900 int aosr = 0x80;
901 int mdacosr = (tda9874a_mode) ? 0x82:0x80;
902
903 switch(mode) {
904 case VIDEO_SOUND_MONO:
905 case VIDEO_SOUND_STEREO:
906 break;
907 case VIDEO_SOUND_LANG1:
908 aosr = 0x80; /* auto-select, dual A/A */
909 mdacosr = (tda9874a_mode) ? 0x82:0x80;
910 break;
911 case VIDEO_SOUND_LANG2:
912 aosr = 0xa0; /* auto-select, dual B/B */
913 mdacosr = (tda9874a_mode) ? 0x83:0x81;
914 break;
915 default:
916 chip->mode = 0;
917 return;
918 }
919 chip_write(chip, TDA9874A_AOSR, aosr);
920 chip_write(chip, TDA9874A_MDACOSR, mdacosr);
921
922 dprintk("tda9874a_setmode(): req. mode %d; AOSR=0x%X, MDACOSR=0x%X.\n",
923 mode, aosr, mdacosr);
924
925 } else { /* dic == 0x07 */
926 int fmmr,aosr;
927
928 switch(mode) {
929 case VIDEO_SOUND_MONO:
930 fmmr = 0x00; /* mono */
931 aosr = 0x10; /* A/A */
932 break;
933 case VIDEO_SOUND_STEREO:
934 if(tda9874a_mode) {
935 fmmr = 0x00;
936 aosr = 0x00; /* handled by NICAM auto-mute */
937 } else {
938 fmmr = (tda9874a_ESP == 1) ? 0x05 : 0x04; /* stereo */
939 aosr = 0x00;
940 }
941 break;
942 case VIDEO_SOUND_LANG1:
943 fmmr = 0x02; /* dual */
944 aosr = 0x10; /* dual A/A */
945 break;
946 case VIDEO_SOUND_LANG2:
947 fmmr = 0x02; /* dual */
948 aosr = 0x20; /* dual B/B */
949 break;
950 default:
951 chip->mode = 0;
952 return;
953 }
954 chip_write(chip, TDA9874A_FMMR, fmmr);
955 chip_write(chip, TDA9874A_AOSR, aosr);
956
957 dprintk("tda9874a_setmode(): req. mode %d; FMMR=0x%X, AOSR=0x%X.\n",
958 mode, fmmr, aosr);
959 }
960 }
961
962 static int tda9874a_checkit(struct CHIPSTATE *chip)
963 {
964 int dic,sic; /* device id. and software id. codes */
965
966 if(-1 == (dic = chip_read2(chip,TDA9874A_DIC)))
967 return 0;
968 if(-1 == (sic = chip_read2(chip,TDA9874A_SIC)))
969 return 0;
970
971 dprintk("tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", dic, sic);
972
973 if((dic == 0x11)||(dic == 0x07)) {
974 printk("tvaudio: found tda9874%s.\n", (dic == 0x11) ? "a":"h");
975 tda9874a_dic = dic; /* remember device id. */
976 return 1;
977 }
978 return 0; /* not found */
979 }
980
981 static int tda9874a_initialize(struct CHIPSTATE *chip)
982 {
983 if (tda9874a_SIF > 2)
984 tda9874a_SIF = 1;
985 if (tda9874a_STD > 8)
986 tda9874a_STD = 0;
987 if(tda9874a_AMSEL > 1)
988 tda9874a_AMSEL = 0;
989
990 if(tda9874a_SIF == 1)
991 tda9874a_GCONR = 0xc0; /* sound IF input 1 */
992 else
993 tda9874a_GCONR = 0xc1; /* sound IF input 2 */
994
995 tda9874a_ESP = tda9874a_STD;
996 tda9874a_mode = (tda9874a_STD < 5) ? 0 : 1;
997
998 if(tda9874a_AMSEL == 0)
999 tda9874a_NCONR = 0x01; /* auto-mute: analog mono input */
1000 else
1001 tda9874a_NCONR = 0x05; /* auto-mute: 1st carrier FM or AM */
1002
1003 tda9874a_setup(chip);
1004 return 0;
1005 }
1006
1007
1008 /* ---------------------------------------------------------------------- */
1009 /* audio chip descriptions - defines+functions for tea6420 */
1010
1011 #define TEA6300_VL 0x00 /* volume left */
1012 #define TEA6300_VR 0x01 /* volume right */
1013 #define TEA6300_BA 0x02 /* bass */
1014 #define TEA6300_TR 0x03 /* treble */
1015 #define TEA6300_FA 0x04 /* fader control */
1016 #define TEA6300_S 0x05 /* switch register */
1017 /* values for those registers: */
1018 #define TEA6300_S_SA 0x01 /* stereo A input */
1019 #define TEA6300_S_SB 0x02 /* stereo B */
1020 #define TEA6300_S_SC 0x04 /* stereo C */
1021 #define TEA6300_S_GMU 0x80 /* general mute */
1022
1023 #define TEA6320_V 0x00 /* volume (0-5)/loudness off (6)/zero crossing mute(7) */
1024 #define TEA6320_FFR 0x01 /* fader front right (0-5) */
1025 #define TEA6320_FFL 0x02 /* fader front left (0-5) */
1026 #define TEA6320_FRR 0x03 /* fader rear right (0-5) */
1027 #define TEA6320_FRL 0x04 /* fader rear left (0-5) */
1028 #define TEA6320_BA 0x05 /* bass (0-4) */
1029 #define TEA6320_TR 0x06 /* treble (0-4) */
1030 #define TEA6320_S 0x07 /* switch register */
1031 /* values for those registers: */
1032 #define TEA6320_S_SA 0x07 /* stereo A input */
1033 #define TEA6320_S_SB 0x06 /* stereo B */
1034 #define TEA6320_S_SC 0x05 /* stereo C */
1035 #define TEA6320_S_SD 0x04 /* stereo D */
1036 #define TEA6320_S_GMU 0x80 /* general mute */
1037
1038 #define TEA6420_S_SA 0x00 /* stereo A input */
1039 #define TEA6420_S_SB 0x01 /* stereo B */
1040 #define TEA6420_S_SC 0x02 /* stereo C */
1041 #define TEA6420_S_SD 0x03 /* stereo D */
1042 #define TEA6420_S_SE 0x04 /* stereo E */
1043 #define TEA6420_S_GMU 0x05 /* general mute */
1044
1045 static int tea6300_shift10(int val) { return val >> 10; }
1046 static int tea6300_shift12(int val) { return val >> 12; }
1047
1048 /* Assumes 16bit input (values 0x3f to 0x0c are unique, values less than */
1049 /* 0x0c mirror those immediately higher) */
1050 static int tea6320_volume(int val) { return (val / (65535/(63-12)) + 12) & 0x3f; }
1051 static int tea6320_shift11(int val) { return val >> 11; }
1052 static int tea6320_initialize(struct CHIPSTATE * chip)
1053 {
1054 chip_write(chip, TEA6320_FFR, 0x3f);
1055 chip_write(chip, TEA6320_FFL, 0x3f);
1056 chip_write(chip, TEA6320_FRR, 0x3f);
1057 chip_write(chip, TEA6320_FRL, 0x3f);
1058
1059 return 0;
1060 }
1061
1062
1063 /* ---------------------------------------------------------------------- */
1064 /* audio chip descriptions - defines+functions for tda8425 */
1065
1066 #define TDA8425_VL 0x00 /* volume left */
1067 #define TDA8425_VR 0x01 /* volume right */
1068 #define TDA8425_BA 0x02 /* bass */
1069 #define TDA8425_TR 0x03 /* treble */
1070 #define TDA8425_S1 0x08 /* switch functions */
1071 /* values for those registers: */
1072 #define TDA8425_S1_OFF 0xEE /* audio off (mute on) */
1073 #define TDA8425_S1_CH1 0xCE /* audio channel 1 (mute off) - "linear stereo" mode */
1074 #define TDA8425_S1_CH2 0xCF /* audio channel 2 (mute off) - "linear stereo" mode */
1075 #define TDA8425_S1_MU 0x20 /* mute bit */
1076 #define TDA8425_S1_STEREO 0x18 /* stereo bits */
1077 #define TDA8425_S1_STEREO_SPATIAL 0x18 /* spatial stereo */
1078 #define TDA8425_S1_STEREO_LINEAR 0x08 /* linear stereo */
1079 #define TDA8425_S1_STEREO_PSEUDO 0x10 /* pseudo stereo */
1080 #define TDA8425_S1_STEREO_MONO 0x00 /* forced mono */
1081 #define TDA8425_S1_ML 0x06 /* language selector */
1082 #define TDA8425_S1_ML_SOUND_A 0x02 /* sound a */
1083 #define TDA8425_S1_ML_SOUND_B 0x04 /* sound b */
1084 #define TDA8425_S1_ML_STEREO 0x06 /* stereo */
1085 #define TDA8425_S1_IS 0x01 /* channel selector */
1086
1087
1088 static int tda8425_shift10(int val) { return (val >> 10) | 0xc0; }
1089 static int tda8425_shift12(int val) { return (val >> 12) | 0xf0; }
1090
1091 static int tda8425_initialize(struct CHIPSTATE *chip)
1092 {
1093 struct CHIPDESC *desc = chiplist + chip->type;
1094 int inputmap[8] = { /* tuner */ TDA8425_S1_CH2, /* radio */ TDA8425_S1_CH1,
1095 /* extern */ TDA8425_S1_CH1, /* intern */ TDA8425_S1_OFF,
1096 /* off */ TDA8425_S1_OFF, /* on */ TDA8425_S1_CH2};
1097
1098 if (chip->c.adapter->id == I2C_HW_B_RIVA) {
1099 memcpy (desc->inputmap, inputmap, sizeof (inputmap));
1100 }
1101 return 0;
1102 }
1103
1104 static void tda8425_setmode(struct CHIPSTATE *chip, int mode)
1105 {
1106 int s1 = chip->shadow.bytes[TDA8425_S1+1] & 0xe1;
1107
1108 if (mode & VIDEO_SOUND_LANG1) {
1109 s1 |= TDA8425_S1_ML_SOUND_A;
1110 s1 |= TDA8425_S1_STEREO_PSEUDO;
1111
1112 } else if (mode & VIDEO_SOUND_LANG2) {
1113 s1 |= TDA8425_S1_ML_SOUND_B;
1114 s1 |= TDA8425_S1_STEREO_PSEUDO;
1115
1116 } else {
1117 s1 |= TDA8425_S1_ML_STEREO;
1118
1119 if (mode & VIDEO_SOUND_MONO)
1120 s1 |= TDA8425_S1_STEREO_MONO;
1121 if (mode & VIDEO_SOUND_STEREO)
1122 s1 |= TDA8425_S1_STEREO_SPATIAL;
1123 }
1124 chip_write(chip,TDA8425_S1,s1);
1125 }
1126
1127
1128 /* ---------------------------------------------------------------------- */
1129 /* audio chip descriptions - defines+functions for pic16c54 (PV951) */
1130
1131 /* the registers of 16C54, I2C sub address. */
1132 #define PIC16C54_REG_KEY_CODE 0x01 /* Not use. */
1133 #define PIC16C54_REG_MISC 0x02
1134
1135 /* bit definition of the RESET register, I2C data. */
1136 #define PIC16C54_MISC_RESET_REMOTE_CTL 0x01 /* bit 0, Reset to receive the key */
1137 /* code of remote controller */
1138 #define PIC16C54_MISC_MTS_MAIN 0x02 /* bit 1 */
1139 #define PIC16C54_MISC_MTS_SAP 0x04 /* bit 2 */
1140 #define PIC16C54_MISC_MTS_BOTH 0x08 /* bit 3 */
1141 #define PIC16C54_MISC_SND_MUTE 0x10 /* bit 4, Mute Audio(Line-in and Tuner) */
1142 #define PIC16C54_MISC_SND_NOTMUTE 0x20 /* bit 5 */
1143 #define PIC16C54_MISC_SWITCH_TUNER 0x40 /* bit 6 , Switch to Line-in */
1144 #define PIC16C54_MISC_SWITCH_LINE 0x80 /* bit 7 , Switch to Tuner */
1145
1146 /* ---------------------------------------------------------------------- */
1147 /* audio chip descriptions - defines+functions for TA8874Z */
1148
1149 // write 1st byte
1150 #define TA8874Z_LED_STE 0x80
1151 #define TA8874Z_LED_BIL 0x40
1152 #define TA8874Z_LED_EXT 0x20
1153 #define TA8874Z_MONO_SET 0x10
1154 #define TA8874Z_MUTE 0x08
1155 #define TA8874Z_F_MONO 0x04
1156 #define TA8874Z_MODE_SUB 0x02
1157 #define TA8874Z_MODE_MAIN 0x01
1158
1159 // write 2nd byte
1160 //#define TA8874Z_TI 0x80 // test mode
1161 #define TA8874Z_SEPARATION 0x3f
1162 #define TA8874Z_SEPARATION_DEFAULT 0x10
1163
1164 // read
1165 #define TA8874Z_B1 0x80
1166 #define TA8874Z_B0 0x40
1167 #define TA8874Z_CHAG_FLAG 0x20
1168
1169 // B1 B0
1170 // mono L H
1171 // stereo L L
1172 // BIL H L
1173
1174 static int ta8874z_getmode(struct CHIPSTATE *chip)
1175 {
1176 int val, mode;
1177
1178 val = chip_read(chip);
1179 mode = VIDEO_SOUND_MONO;
1180 if (val & TA8874Z_B1){
1181 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
1182 }else if (!(val & TA8874Z_B0)){
1183 mode |= VIDEO_SOUND_STEREO;
1184 }
1185 //dprintk ("ta8874z_getmode(): raw chip read: 0x%02x, return: 0x%02x\n", val, mode);
1186 return mode;
1187 }
1188
1189 static audiocmd ta8874z_stereo = { 2, {0, TA8874Z_SEPARATION_DEFAULT}};
1190 static audiocmd ta8874z_mono = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}};
1191 static audiocmd ta8874z_main = {2, { 0, TA8874Z_SEPARATION_DEFAULT}};
1192 static audiocmd ta8874z_sub = {2, { TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}};
1193
1194 static void ta8874z_setmode(struct CHIPSTATE *chip, int mode)
1195 {
1196 int update = 1;
1197 audiocmd *t = NULL;
1198 dprintk("ta8874z_setmode(): mode: 0x%02x\n", mode);
1199
1200 switch(mode){
1201 case VIDEO_SOUND_MONO:
1202 t = &ta8874z_mono;
1203 break;
1204 case VIDEO_SOUND_STEREO:
1205 t = &ta8874z_stereo;
1206 break;
1207 case VIDEO_SOUND_LANG1:
1208 t = &ta8874z_main;
1209 break;
1210 case VIDEO_SOUND_LANG2:
1211 t = &ta8874z_sub;
1212 break;
1213 default:
1214 update = 0;
1215 }
1216
1217 if(update)
1218 chip_cmd(chip, "TA8874Z", t);
1219 }
1220
1221 static int ta8874z_checkit(struct CHIPSTATE *chip)
1222 {
1223 int rc;
1224 rc = chip_read(chip);
1225 return ((rc & 0x1f) == 0x1f) ? 1 : 0;
1226 }
1227
1228 /* ---------------------------------------------------------------------- */
1229 /* audio chip descriptions - struct CHIPDESC */
1230
1231 /* insmod options to enable/disable individual audio chips */
1232 static int tda8425 = 1;
1233 static int tda9840 = 1;
1234 static int tda9850 = 1;
1235 static int tda9855 = 1;
1236 static int tda9873 = 1;
1237 static int tda9874a = 1;
1238 static int tea6300 = 0; // address clash with msp34xx
1239 static int tea6320 = 0; // address clash with msp34xx
1240 static int tea6420 = 1;
1241 static int pic16c54 = 1;
1242 static int ta8874z = 0; // address clash with tda9840
1243
1244 module_param(tda8425, int, 0444);
1245 module_param(tda9840, int, 0444);
1246 module_param(tda9850, int, 0444);
1247 module_param(tda9855, int, 0444);
1248 module_param(tda9873, int, 0444);
1249 module_param(tda9874a, int, 0444);
1250 module_param(tea6300, int, 0444);
1251 module_param(tea6320, int, 0444);
1252 module_param(tea6420, int, 0444);
1253 module_param(pic16c54, int, 0444);
1254 module_param(ta8874z, int, 0444);
1255
1256 static struct CHIPDESC chiplist[] = {
1257 {
1258 .name = "tda9840",
1259 .id = I2C_DRIVERID_TDA9840,
1260 .insmodopt = &tda9840,
1261 .addr_lo = I2C_TDA9840 >> 1,
1262 .addr_hi = I2C_TDA9840 >> 1,
1263 .registers = 5,
1264
1265 .getmode = tda9840_getmode,
1266 .setmode = tda9840_setmode,
1267 .checkmode = generic_checkmode,
1268
1269 .init = { 2, { TDA9840_TEST, TDA9840_TEST_INT1SN
1270 /* ,TDA9840_SW, TDA9840_MONO */} }
1271 },
1272 {
1273 .name = "tda9873h",
1274 .id = I2C_DRIVERID_TDA9873,
1275 .checkit = tda9873_checkit,
1276 .insmodopt = &tda9873,
1277 .addr_lo = I2C_TDA985x_L >> 1,
1278 .addr_hi = I2C_TDA985x_H >> 1,
1279 .registers = 3,
1280 .flags = CHIP_HAS_INPUTSEL,
1281
1282 .getmode = tda9873_getmode,
1283 .setmode = tda9873_setmode,
1284 .checkmode = generic_checkmode,
1285
1286 .init = { 4, { TDA9873_SW, 0xa4, 0x06, 0x03 } },
1287 .inputreg = TDA9873_SW,
1288 .inputmute = TDA9873_MUTE | TDA9873_AUTOMUTE,
1289 .inputmap = {0xa0, 0xa2, 0xa0, 0xa0, 0xc0},
1290 .inputmask = TDA9873_INP_MASK|TDA9873_MUTE|TDA9873_AUTOMUTE,
1291
1292 },
1293 {
1294 .name = "tda9874h/a",
1295 .id = I2C_DRIVERID_TDA9874,
1296 .checkit = tda9874a_checkit,
1297 .initialize = tda9874a_initialize,
1298 .insmodopt = &tda9874a,
1299 .addr_lo = I2C_TDA9874 >> 1,
1300 .addr_hi = I2C_TDA9874 >> 1,
1301
1302 .getmode = tda9874a_getmode,
1303 .setmode = tda9874a_setmode,
1304 .checkmode = generic_checkmode,
1305 },
1306 {
1307 .name = "tda9850",
1308 .id = I2C_DRIVERID_TDA9850,
1309 .insmodopt = &tda9850,
1310 .addr_lo = I2C_TDA985x_L >> 1,
1311 .addr_hi = I2C_TDA985x_H >> 1,
1312 .registers = 11,
1313
1314 .getmode = tda985x_getmode,
1315 .setmode = tda985x_setmode,
1316
1317 .init = { 8, { TDA9850_C4, 0x08, 0x08, TDA985x_STEREO, 0x07, 0x10, 0x10, 0x03 } }
1318 },
1319 {
1320 .name = "tda9855",
1321 .id = I2C_DRIVERID_TDA9855,
1322 .insmodopt = &tda9855,
1323 .addr_lo = I2C_TDA985x_L >> 1,
1324 .addr_hi = I2C_TDA985x_H >> 1,
1325 .registers = 11,
1326 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE,
1327
1328 .leftreg = TDA9855_VL,
1329 .rightreg = TDA9855_VR,
1330 .bassreg = TDA9855_BA,
1331 .treblereg = TDA9855_TR,
1332 .volfunc = tda9855_volume,
1333 .bassfunc = tda9855_bass,
1334 .treblefunc = tda9855_treble,
1335
1336 .getmode = tda985x_getmode,
1337 .setmode = tda985x_setmode,
1338
1339 .init = { 12, { 0, 0x6f, 0x6f, 0x0e, 0x07<<1, 0x8<<2,
1340 TDA9855_MUTE | TDA9855_AVL | TDA9855_LOUD | TDA9855_INT,
1341 TDA985x_STEREO | TDA9855_LINEAR | TDA9855_TZCM | TDA9855_VZCM,
1342 0x07, 0x10, 0x10, 0x03 }}
1343 },
1344 {
1345 .name = "tea6300",
1346 .id = I2C_DRIVERID_TEA6300,
1347 .insmodopt = &tea6300,
1348 .addr_lo = I2C_TEA6300 >> 1,
1349 .addr_hi = I2C_TEA6300 >> 1,
1350 .registers = 6,
1351 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1352
1353 .leftreg = TEA6300_VR,
1354 .rightreg = TEA6300_VL,
1355 .bassreg = TEA6300_BA,
1356 .treblereg = TEA6300_TR,
1357 .volfunc = tea6300_shift10,
1358 .bassfunc = tea6300_shift12,
1359 .treblefunc = tea6300_shift12,
1360
1361 .inputreg = TEA6300_S,
1362 .inputmap = { TEA6300_S_SA, TEA6300_S_SB, TEA6300_S_SC },
1363 .inputmute = TEA6300_S_GMU,
1364 },
1365 {
1366 .name = "tea6320",
1367 .id = I2C_DRIVERID_TEA6300,
1368 .initialize = tea6320_initialize,
1369 .insmodopt = &tea6320,
1370 .addr_lo = I2C_TEA6300 >> 1,
1371 .addr_hi = I2C_TEA6300 >> 1,
1372 .registers = 8,
1373 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1374
1375 .leftreg = TEA6320_V,
1376 .rightreg = TEA6320_V,
1377 .bassreg = TEA6320_BA,
1378 .treblereg = TEA6320_TR,
1379 .volfunc = tea6320_volume,
1380 .bassfunc = tea6320_shift11,
1381 .treblefunc = tea6320_shift11,
1382
1383 .inputreg = TEA6320_S,
1384 .inputmap = { TEA6320_S_SA, TEA6420_S_SB, TEA6300_S_SC, TEA6320_S_SD },
1385 .inputmute = TEA6300_S_GMU,
1386 },
1387 {
1388 .name = "tea6420",
1389 .id = I2C_DRIVERID_TEA6420,
1390 .insmodopt = &tea6420,
1391 .addr_lo = I2C_TEA6420 >> 1,
1392 .addr_hi = I2C_TEA6420 >> 1,
1393 .registers = 1,
1394 .flags = CHIP_HAS_INPUTSEL,
1395
1396 .inputreg = -1,
1397 .inputmap = { TEA6420_S_SA, TEA6420_S_SB, TEA6420_S_SC },
1398 .inputmute = TEA6300_S_GMU,
1399 },
1400 {
1401 .name = "tda8425",
1402 .id = I2C_DRIVERID_TDA8425,
1403 .insmodopt = &tda8425,
1404 .addr_lo = I2C_TDA8425 >> 1,
1405 .addr_hi = I2C_TDA8425 >> 1,
1406 .registers = 9,
1407 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1408
1409 .leftreg = TDA8425_VL,
1410 .rightreg = TDA8425_VR,
1411 .bassreg = TDA8425_BA,
1412 .treblereg = TDA8425_TR,
1413 .volfunc = tda8425_shift10,
1414 .bassfunc = tda8425_shift12,
1415 .treblefunc = tda8425_shift12,
1416
1417 .inputreg = TDA8425_S1,
1418 .inputmap = { TDA8425_S1_CH1, TDA8425_S1_CH1, TDA8425_S1_CH1 },
1419 .inputmute = TDA8425_S1_OFF,
1420
1421 .setmode = tda8425_setmode,
1422 .initialize = tda8425_initialize,
1423 },
1424 {
1425 .name = "pic16c54 (PV951)",
1426 .id = I2C_DRIVERID_PIC16C54_PV951,
1427 .insmodopt = &pic16c54,
1428 .addr_lo = I2C_PIC16C54 >> 1,
1429 .addr_hi = I2C_PIC16C54>> 1,
1430 .registers = 2,
1431 .flags = CHIP_HAS_INPUTSEL,
1432
1433 .inputreg = PIC16C54_REG_MISC,
1434 .inputmap = {PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_TUNER,
1435 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1436 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1437 PIC16C54_MISC_SND_MUTE,PIC16C54_MISC_SND_MUTE,
1438 PIC16C54_MISC_SND_NOTMUTE},
1439 .inputmute = PIC16C54_MISC_SND_MUTE,
1440 },
1441 {
1442 .name = "ta8874z",
1443 .id = -1,
1444 //.id = I2C_DRIVERID_TA8874Z,
1445 .checkit = ta8874z_checkit,
1446 .insmodopt = &ta8874z,
1447 .addr_lo = I2C_TDA9840 >> 1,
1448 .addr_hi = I2C_TDA9840 >> 1,
1449 .registers = 2,
1450
1451 .getmode = ta8874z_getmode,
1452 .setmode = ta8874z_setmode,
1453 .checkmode = generic_checkmode,
1454
1455 .init = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}},
1456 },
1457 { .name = NULL } /* EOF */
1458 };
1459
1460
1461 /* ---------------------------------------------------------------------- */
1462 /* i2c registration */
1463
1464 static int chip_attach(struct i2c_adapter *adap, int addr, int kind)
1465 {
1466 struct CHIPSTATE *chip;
1467 struct CHIPDESC *desc;
1468
1469 chip = kmalloc(sizeof(*chip),GFP_KERNEL);
1470 if (!chip)
1471 return -ENOMEM;
1472 memset(chip,0,sizeof(*chip));
1473 memcpy(&chip->c,&client_template,sizeof(struct i2c_client));
1474 chip->c.adapter = adap;
1475 chip->c.addr = addr;
1476 i2c_set_clientdata(&chip->c, chip);
1477
1478 /* find description for the chip */
1479 dprintk("tvaudio: chip found @ i2c-addr=0x%x\n", addr<<1);
1480 for (desc = chiplist; desc->name != NULL; desc++) {
1481 if (0 == *(desc->insmodopt))
1482 continue;
1483 if (addr < desc->addr_lo ||
1484 addr > desc->addr_hi)
1485 continue;
1486 if (desc->checkit && !desc->checkit(chip))
1487 continue;
1488 break;
1489 }
1490 if (desc->name == NULL) {
1491 dprintk("tvaudio: no matching chip description found\n");
1492 return -EIO;
1493 }
1494 printk("tvaudio: found %s @ 0x%x\n", desc->name, addr<<1);
1495 dprintk("tvaudio: matches:%s%s%s.\n",
1496 (desc->flags & CHIP_HAS_VOLUME) ? " volume" : "",
1497 (desc->flags & CHIP_HAS_BASSTREBLE) ? " bass/treble" : "",
1498 (desc->flags & CHIP_HAS_INPUTSEL) ? " audiomux" : "");
1499
1500 /* fill required data structures */
1501 strcpy(chip->c.name, desc->name);
1502 chip->type = desc-chiplist;
1503 chip->shadow.count = desc->registers+1;
1504 chip->prevmode = -1;
1505 /* register */
1506 i2c_attach_client(&chip->c);
1507
1508 /* initialization */
1509 if (desc->initialize != NULL)
1510 desc->initialize(chip);
1511 else
1512 chip_cmd(chip,"init",&desc->init);
1513
1514 if (desc->flags & CHIP_HAS_VOLUME) {
1515 chip->left = desc->leftinit ? desc->leftinit : 65535;
1516 chip->right = desc->rightinit ? desc->rightinit : 65535;
1517 chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
1518 chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
1519 }
1520 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1521 chip->treble = desc->trebleinit ? desc->trebleinit : 32768;
1522 chip->bass = desc->bassinit ? desc->bassinit : 32768;
1523 chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
1524 chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
1525 }
1526
1527 chip->tpid = -1;
1528 if (desc->checkmode) {
1529 /* start async thread */
1530 init_timer(&chip->wt);
1531 chip->wt.function = chip_thread_wake;
1532 chip->wt.data = (unsigned long)chip;
1533 init_waitqueue_head(&chip->wq);
1534 init_completion(&chip->texit);
1535 chip->tpid = kernel_thread(chip_thread,(void *)chip,0);
1536 if (chip->tpid < 0)
1537 printk(KERN_WARNING "%s: kernel_thread() failed\n",
1538 chip->c.name);
1539 wake_up_interruptible(&chip->wq);
1540 }
1541 return 0;
1542 }
1543
1544 static int chip_probe(struct i2c_adapter *adap)
1545 {
1546 /* don't attach on saa7146 based cards,
1547 because dedicated drivers are used */
1548 if (adap->id == I2C_HW_SAA7146)
1549 return 0;
1550 #ifdef I2C_CLASS_TV_ANALOG
1551 if (adap->class & I2C_CLASS_TV_ANALOG)
1552 return i2c_probe(adap, &addr_data, chip_attach);
1553 #else
1554 switch (adap->id) {
1555 case I2C_HW_B_BT848:
1556 case I2C_HW_B_RIVA:
1557 case I2C_HW_SAA7134:
1558 return i2c_probe(adap, &addr_data, chip_attach);
1559 }
1560 #endif
1561 return 0;
1562 }
1563
1564 static int chip_detach(struct i2c_client *client)
1565 {
1566 struct CHIPSTATE *chip = i2c_get_clientdata(client);
1567
1568 del_timer_sync(&chip->wt);
1569 if (chip->tpid >= 0) {
1570 /* shutdown async thread */
1571 chip->done = 1;
1572 wake_up_interruptible(&chip->wq);
1573 wait_for_completion(&chip->texit);
1574 }
1575
1576 i2c_detach_client(&chip->c);
1577 kfree(chip);
1578 return 0;
1579 }
1580
1581 /* ---------------------------------------------------------------------- */
1582 /* video4linux interface */
1583
1584 static int chip_command(struct i2c_client *client,
1585 unsigned int cmd, void *arg)
1586 {
1587 __u16 *sarg = arg;
1588 struct CHIPSTATE *chip = i2c_get_clientdata(client);
1589 struct CHIPDESC *desc = chiplist + chip->type;
1590
1591 dprintk("%s: chip_command 0x%x\n", chip->c.name, cmd);
1592
1593 switch (cmd) {
1594 case AUDC_SET_INPUT:
1595 if (desc->flags & CHIP_HAS_INPUTSEL) {
1596 if (*sarg & 0x80)
1597 chip_write_masked(chip,desc->inputreg,desc->inputmute,desc->inputmask);
1598 else
1599 chip_write_masked(chip,desc->inputreg,desc->inputmap[*sarg],desc->inputmask);
1600 }
1601 break;
1602
1603 case AUDC_SET_RADIO:
1604 dprintk(KERN_DEBUG "tvaudio: AUDC_SET_RADIO\n");
1605 chip->norm = VIDEO_MODE_RADIO;
1606 chip->watch_stereo = 0;
1607 /* del_timer(&chip->wt); */
1608 break;
1609
1610 /* --- v4l ioctls --- */
1611 /* take care: bttv does userspace copying, we'll get a
1612 kernel pointer here... */
1613 case VIDIOCGAUDIO:
1614 {
1615 struct video_audio *va = arg;
1616
1617 if (desc->flags & CHIP_HAS_VOLUME) {
1618 va->flags |= VIDEO_AUDIO_VOLUME;
1619 va->volume = max(chip->left,chip->right);
1620 if (va->volume)
1621 va->balance = (32768*min(chip->left,chip->right))/
1622 va->volume;
1623 else
1624 va->balance = 32768;
1625 }
1626 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1627 va->flags |= VIDEO_AUDIO_BASS | VIDEO_AUDIO_TREBLE;
1628 va->bass = chip->bass;
1629 va->treble = chip->treble;
1630 }
1631 if (chip->norm != VIDEO_MODE_RADIO) {
1632 if (desc->getmode)
1633 va->mode = desc->getmode(chip);
1634 else
1635 va->mode = VIDEO_SOUND_MONO;
1636 }
1637 break;
1638 }
1639
1640 case VIDIOCSAUDIO:
1641 {
1642 struct video_audio *va = arg;
1643
1644 if (desc->flags & CHIP_HAS_VOLUME) {
1645 chip->left = (min(65536 - va->balance,32768) *
1646 va->volume) / 32768;
1647 chip->right = (min(va->balance,(__u16)32768) *
1648 va->volume) / 32768;
1649 chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
1650 chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
1651 }
1652 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1653 chip->bass = va->bass;
1654 chip->treble = va->treble;
1655 chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
1656 chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
1657 }
1658 if (desc->setmode && va->mode) {
1659 chip->watch_stereo = 0;
1660 /* del_timer(&chip->wt); */
1661 chip->mode = va->mode;
1662 desc->setmode(chip,va->mode);
1663 }
1664 break;
1665 }
1666 case VIDIOCSCHAN:
1667 {
1668 struct video_channel *vc = arg;
1669
1670 dprintk(KERN_DEBUG "tvaudio: VIDIOCSCHAN\n");
1671 chip->norm = vc->norm;
1672 break;
1673 }
1674 case VIDIOCSFREQ:
1675 {
1676 chip->mode = 0; /* automatic */
1677 if (desc->checkmode) {
1678 desc->setmode(chip,VIDEO_SOUND_MONO);
1679 if (chip->prevmode != VIDEO_SOUND_MONO)
1680 chip->prevmode = -1; /* reset previous mode */
1681 mod_timer(&chip->wt, jiffies+2*HZ);
1682 /* the thread will call checkmode() later */
1683 }
1684 }
1685 }
1686 return 0;
1687 }
1688
1689
1690 static struct i2c_driver driver = {
1691 .owner = THIS_MODULE,
1692 .name = "generic i2c audio driver",
1693 .id = I2C_DRIVERID_TVAUDIO,
1694 .flags = I2C_DF_NOTIFY,
1695 .attach_adapter = chip_probe,
1696 .detach_client = chip_detach,
1697 .command = chip_command,
1698 };
1699
1700 static struct i2c_client client_template =
1701 {
1702 .name = "(unset)",
1703 .flags = I2C_CLIENT_ALLOW_USE,
1704 .driver = &driver,
1705 };
1706
1707 static int __init audiochip_init_module(void)
1708 {
1709 struct CHIPDESC *desc;
1710 printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux driver\n");
1711 printk(KERN_INFO "tvaudio: known chips: ");
1712 for (desc = chiplist; desc->name != NULL; desc++)
1713 printk("%s%s", (desc == chiplist) ? "" : ",",desc->name);
1714 printk("\n");
1715
1716 return i2c_add_driver(&driver);
1717 }
1718
1719 static void __exit audiochip_cleanup_module(void)
1720 {
1721 i2c_del_driver(&driver);
1722 }
1723
1724 module_init(audiochip_init_module);
1725 module_exit(audiochip_cleanup_module);
1726
1727 /*
1728 * Local variables:
1729 * c-basic-offset: 8
1730 * End:
1731 */
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