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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/media/video/tvaudio.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/media/video/tvaudio.c')
-rw-r--r--drivers/media/video/tvaudio.c1740
1 files changed, 1740 insertions, 0 deletions
diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c
new file mode 100644
index 000000000000..065eb4007b1d
--- /dev/null
+++ b/drivers/media/video/tvaudio.c
@@ -0,0 +1,1740 @@
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
41static int debug = 0; /* insmod parameter */
42module_param(debug, int, 0644);
43
44MODULE_DESCRIPTION("device driver for various i2c TV sound decoder / audiomux chips");
45MODULE_AUTHOR("Eric Sandeen, Steve VanDeBogart, Greg Alexander, Gerd Knorr");
46MODULE_LICENSE("GPL");
47
48#define UNSET (-1U)
49#define dprintk if (debug) printk
50
51/* ---------------------------------------------------------------------- */
52/* our structs */
53
54#define MAXREGS 64
55
56struct CHIPSTATE;
57typedef int (*getvalue)(int);
58typedef int (*checkit)(struct CHIPSTATE*);
59typedef int (*initialize)(struct CHIPSTATE*);
60typedef int (*getmode)(struct CHIPSTATE*);
61typedef void (*setmode)(struct CHIPSTATE*, int mode);
62typedef void (*checkmode)(struct CHIPSTATE*);
63
64/* i2c command */
65typedef struct AUDIOCMD {
66 int count; /* # of bytes to send */
67 unsigned char bytes[MAXREGS+1]; /* addr, data, data, ... */
68} audiocmd;
69
70/* chip description */
71struct 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};
110static struct CHIPDESC chiplist[];
111
112/* current state of the chip */
113struct 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
141static 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 };
151static unsigned short normal_i2c_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
152I2C_CLIENT_INSMOD;
153
154static struct i2c_driver driver;
155static struct i2c_client client_template;
156
157
158/* ---------------------------------------------------------------------- */
159/* i2c I/O functions */
160
161static int chip_write(struct CHIPSTATE *chip, int subaddr, int val)
162{
163 unsigned char buffer[2];
164
165 if (-1 == subaddr) {
166 dprintk("%s: chip_write: 0x%x\n",
167 i2c_clientname(&chip->c), val);
168 chip->shadow.bytes[1] = val;
169 buffer[0] = val;
170 if (1 != i2c_master_send(&chip->c,buffer,1)) {
171 printk(KERN_WARNING "%s: I/O error (write 0x%x)\n",
172 i2c_clientname(&chip->c), val);
173 return -1;
174 }
175 } else {
176 dprintk("%s: chip_write: reg%d=0x%x\n",
177 i2c_clientname(&chip->c), subaddr, val);
178 chip->shadow.bytes[subaddr+1] = val;
179 buffer[0] = subaddr;
180 buffer[1] = val;
181 if (2 != i2c_master_send(&chip->c,buffer,2)) {
182 printk(KERN_WARNING "%s: I/O error (write reg%d=0x%x)\n",
183 i2c_clientname(&chip->c), subaddr, val);
184 return -1;
185 }
186 }
187 return 0;
188}
189
190static int chip_write_masked(struct CHIPSTATE *chip, int subaddr, int val, int mask)
191{
192 if (mask != 0) {
193 if (-1 == subaddr) {
194 val = (chip->shadow.bytes[1] & ~mask) | (val & mask);
195 } else {
196 val = (chip->shadow.bytes[subaddr+1] & ~mask) | (val & mask);
197 }
198 }
199 return chip_write(chip, subaddr, val);
200}
201
202static int chip_read(struct CHIPSTATE *chip)
203{
204 unsigned char buffer;
205
206 if (1 != i2c_master_recv(&chip->c,&buffer,1)) {
207 printk(KERN_WARNING "%s: I/O error (read)\n",
208 i2c_clientname(&chip->c));
209 return -1;
210 }
211 dprintk("%s: chip_read: 0x%x\n",i2c_clientname(&chip->c),buffer);
212 return buffer;
213}
214
215static int chip_read2(struct CHIPSTATE *chip, int subaddr)
216{
217 unsigned char write[1];
218 unsigned char read[1];
219 struct i2c_msg msgs[2] = {
220 { chip->c.addr, 0, 1, write },
221 { chip->c.addr, I2C_M_RD, 1, read }
222 };
223 write[0] = subaddr;
224
225 if (2 != i2c_transfer(chip->c.adapter,msgs,2)) {
226 printk(KERN_WARNING "%s: I/O error (read2)\n",
227 i2c_clientname(&chip->c));
228 return -1;
229 }
230 dprintk("%s: chip_read2: reg%d=0x%x\n",
231 i2c_clientname(&chip->c),subaddr,read[0]);
232 return read[0];
233}
234
235static int chip_cmd(struct CHIPSTATE *chip, char *name, audiocmd *cmd)
236{
237 int i;
238
239 if (0 == cmd->count)
240 return 0;
241
242 /* update our shadow register set; print bytes if (debug > 0) */
243 dprintk("%s: chip_cmd(%s): reg=%d, data:",
244 i2c_clientname(&chip->c),name,cmd->bytes[0]);
245 for (i = 1; i < cmd->count; i++) {
246 dprintk(" 0x%x",cmd->bytes[i]);
247 chip->shadow.bytes[i+cmd->bytes[0]] = cmd->bytes[i];
248 }
249 dprintk("\n");
250
251 /* send data to the chip */
252 if (cmd->count != i2c_master_send(&chip->c,cmd->bytes,cmd->count)) {
253 printk(KERN_WARNING "%s: I/O error (%s)\n", i2c_clientname(&chip->c), name);
254 return -1;
255 }
256 return 0;
257}
258
259/* ---------------------------------------------------------------------- */
260/* kernel thread for doing i2c stuff asyncronly
261 * right now it is used only to check the audio mode (mono/stereo/whatever)
262 * some time after switching to another TV channel, then turn on stereo
263 * if available, ...
264 */
265
266static void chip_thread_wake(unsigned long data)
267{
268 struct CHIPSTATE *chip = (struct CHIPSTATE*)data;
269 wake_up_interruptible(&chip->wq);
270}
271
272static int chip_thread(void *data)
273{
274 DECLARE_WAITQUEUE(wait, current);
275 struct CHIPSTATE *chip = data;
276 struct CHIPDESC *desc = chiplist + chip->type;
277
278 daemonize("%s",i2c_clientname(&chip->c));
279 allow_signal(SIGTERM);
280 dprintk("%s: thread started\n", i2c_clientname(&chip->c));
281
282 for (;;) {
283 add_wait_queue(&chip->wq, &wait);
284 if (!chip->done) {
285 set_current_state(TASK_INTERRUPTIBLE);
286 schedule();
287 }
288 remove_wait_queue(&chip->wq, &wait);
289 try_to_freeze(PF_FREEZE);
290 if (chip->done || signal_pending(current))
291 break;
292 dprintk("%s: thread wakeup\n", i2c_clientname(&chip->c));
293
294 /* don't do anything for radio or if mode != auto */
295 if (chip->norm == VIDEO_MODE_RADIO || chip->mode != 0)
296 continue;
297
298 /* have a look what's going on */
299 desc->checkmode(chip);
300
301 /* schedule next check */
302 mod_timer(&chip->wt, jiffies+2*HZ);
303 }
304
305 dprintk("%s: thread exiting\n", i2c_clientname(&chip->c));
306 complete_and_exit(&chip->texit, 0);
307 return 0;
308}
309
310static void generic_checkmode(struct CHIPSTATE *chip)
311{
312 struct CHIPDESC *desc = chiplist + chip->type;
313 int mode = desc->getmode(chip);
314
315 if (mode == chip->prevmode)
316 return;
317
318 dprintk("%s: thread checkmode\n", i2c_clientname(&chip->c));
319 chip->prevmode = mode;
320
321 if (mode & VIDEO_SOUND_STEREO)
322 desc->setmode(chip,VIDEO_SOUND_STEREO);
323 else if (mode & VIDEO_SOUND_LANG1)
324 desc->setmode(chip,VIDEO_SOUND_LANG1);
325 else if (mode & VIDEO_SOUND_LANG2)
326 desc->setmode(chip,VIDEO_SOUND_LANG2);
327 else
328 desc->setmode(chip,VIDEO_SOUND_MONO);
329}
330
331/* ---------------------------------------------------------------------- */
332/* audio chip descriptions - defines+functions for tda9840 */
333
334#define TDA9840_SW 0x00
335#define TDA9840_LVADJ 0x02
336#define TDA9840_STADJ 0x03
337#define TDA9840_TEST 0x04
338
339#define TDA9840_MONO 0x10
340#define TDA9840_STEREO 0x2a
341#define TDA9840_DUALA 0x12
342#define TDA9840_DUALB 0x1e
343#define TDA9840_DUALAB 0x1a
344#define TDA9840_DUALBA 0x16
345#define TDA9840_EXTERNAL 0x7a
346
347#define TDA9840_DS_DUAL 0x20 /* Dual sound identified */
348#define TDA9840_ST_STEREO 0x40 /* Stereo sound identified */
349#define TDA9840_PONRES 0x80 /* Power-on reset detected if = 1 */
350
351#define TDA9840_TEST_INT1SN 0x1 /* Integration time 0.5s when set */
352#define TDA9840_TEST_INTFU 0x02 /* Disables integrator function */
353
354static int tda9840_getmode(struct CHIPSTATE *chip)
355{
356 int val, mode;
357
358 val = chip_read(chip);
359 mode = VIDEO_SOUND_MONO;
360 if (val & TDA9840_DS_DUAL)
361 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
362 if (val & TDA9840_ST_STEREO)
363 mode |= VIDEO_SOUND_STEREO;
364
365 dprintk ("tda9840_getmode(): raw chip read: %d, return: %d\n",
366 val, mode);
367 return mode;
368}
369
370static void tda9840_setmode(struct CHIPSTATE *chip, int mode)
371{
372 int update = 1;
373 int t = chip->shadow.bytes[TDA9840_SW + 1] & ~0x7e;
374
375 switch (mode) {
376 case VIDEO_SOUND_MONO:
377 t |= TDA9840_MONO;
378 break;
379 case VIDEO_SOUND_STEREO:
380 t |= TDA9840_STEREO;
381 break;
382 case VIDEO_SOUND_LANG1:
383 t |= TDA9840_DUALA;
384 break;
385 case VIDEO_SOUND_LANG2:
386 t |= TDA9840_DUALB;
387 break;
388 default:
389 update = 0;
390 }
391
392 if (update)
393 chip_write(chip, TDA9840_SW, t);
394}
395
396/* ---------------------------------------------------------------------- */
397/* audio chip descriptions - defines+functions for tda985x */
398
399/* subaddresses for TDA9855 */
400#define TDA9855_VR 0x00 /* Volume, right */
401#define TDA9855_VL 0x01 /* Volume, left */
402#define TDA9855_BA 0x02 /* Bass */
403#define TDA9855_TR 0x03 /* Treble */
404#define TDA9855_SW 0x04 /* Subwoofer - not connected on DTV2000 */
405
406/* subaddresses for TDA9850 */
407#define TDA9850_C4 0x04 /* Control 1 for TDA9850 */
408
409/* subaddesses for both chips */
410#define TDA985x_C5 0x05 /* Control 2 for TDA9850, Control 1 for TDA9855 */
411#define TDA985x_C6 0x06 /* Control 3 for TDA9850, Control 2 for TDA9855 */
412#define TDA985x_C7 0x07 /* Control 4 for TDA9850, Control 3 for TDA9855 */
413#define TDA985x_A1 0x08 /* Alignment 1 for both chips */
414#define TDA985x_A2 0x09 /* Alignment 2 for both chips */
415#define TDA985x_A3 0x0a /* Alignment 3 for both chips */
416
417/* Masks for bits in TDA9855 subaddresses */
418/* 0x00 - VR in TDA9855 */
419/* 0x01 - VL in TDA9855 */
420/* lower 7 bits control gain from -71dB (0x28) to 16dB (0x7f)
421 * in 1dB steps - mute is 0x27 */
422
423
424/* 0x02 - BA in TDA9855 */
425/* lower 5 bits control bass gain from -12dB (0x06) to 16.5dB (0x19)
426 * in .5dB steps - 0 is 0x0E */
427
428
429/* 0x03 - TR in TDA9855 */
430/* 4 bits << 1 control treble gain from -12dB (0x3) to 12dB (0xb)
431 * in 3dB steps - 0 is 0x7 */
432
433/* Masks for bits in both chips' subaddresses */
434/* 0x04 - SW in TDA9855, C4/Control 1 in TDA9850 */
435/* Unique to TDA9855: */
436/* 4 bits << 2 control subwoofer/surround gain from -14db (0x1) to 14db (0xf)
437 * in 3dB steps - mute is 0x0 */
438
439/* Unique to TDA9850: */
440/* lower 4 bits control stereo noise threshold, over which stereo turns off
441 * set to values of 0x00 through 0x0f for Ster1 through Ster16 */
442
443
444/* 0x05 - C5 - Control 1 in TDA9855 , Control 2 in TDA9850*/
445/* Unique to TDA9855: */
446#define TDA9855_MUTE 1<<7 /* GMU, Mute at outputs */
447#define TDA9855_AVL 1<<6 /* AVL, Automatic Volume Level */
448#define TDA9855_LOUD 1<<5 /* Loudness, 1==off */
449#define TDA9855_SUR 1<<3 /* Surround / Subwoofer 1==.5(L-R) 0==.5(L+R) */
450 /* Bits 0 to 3 select various combinations
451 * of line in and line out, only the
452 * interesting ones are defined */
453#define TDA9855_EXT 1<<2 /* Selects inputs LIR and LIL. Pins 41 & 12 */
454#define TDA9855_INT 0 /* Selects inputs LOR and LOL. (internal) */
455
456/* Unique to TDA9850: */
457/* lower 4 bits contol SAP noise threshold, over which SAP turns off
458 * set to values of 0x00 through 0x0f for SAP1 through SAP16 */
459
460
461/* 0x06 - C6 - Control 2 in TDA9855, Control 3 in TDA9850 */
462/* Common to TDA9855 and TDA9850: */
463#define TDA985x_SAP 3<<6 /* Selects SAP output, mute if not received */
464#define TDA985x_STEREO 1<<6 /* Selects Stereo ouput, mono if not received */
465#define TDA985x_MONO 0 /* Forces Mono output */
466#define TDA985x_LMU 1<<3 /* Mute (LOR/LOL for 9855, OUTL/OUTR for 9850) */
467
468/* Unique to TDA9855: */
469#define TDA9855_TZCM 1<<5 /* If set, don't mute till zero crossing */
470#define TDA9855_VZCM 1<<4 /* If set, don't change volume till zero crossing*/
471#define TDA9855_LINEAR 0 /* Linear Stereo */
472#define TDA9855_PSEUDO 1 /* Pseudo Stereo */
473#define TDA9855_SPAT_30 2 /* Spatial Stereo, 30% anti-phase crosstalk */
474#define TDA9855_SPAT_50 3 /* Spatial Stereo, 52% anti-phase crosstalk */
475#define TDA9855_E_MONO 7 /* Forced mono - mono select elseware, so useless*/
476
477/* 0x07 - C7 - Control 3 in TDA9855, Control 4 in TDA9850 */
478/* Common to both TDA9855 and TDA9850: */
479/* lower 4 bits control input gain from -3.5dB (0x0) to 4dB (0xF)
480 * in .5dB steps - 0dB is 0x7 */
481
482/* 0x08, 0x09 - A1 and A2 (read/write) */
483/* Common to both TDA9855 and TDA9850: */
484/* lower 5 bites are wideband and spectral expander alignment
485 * from 0x00 to 0x1f - nominal at 0x0f and 0x10 (read/write) */
486#define TDA985x_STP 1<<5 /* Stereo Pilot/detect (read-only) */
487#define TDA985x_SAPP 1<<6 /* SAP Pilot/detect (read-only) */
488#define TDA985x_STS 1<<7 /* Stereo trigger 1= <35mV 0= <30mV (write-only)*/
489
490/* 0x0a - A3 */
491/* Common to both TDA9855 and TDA9850: */
492/* lower 3 bits control timing current for alignment: -30% (0x0), -20% (0x1),
493 * -10% (0x2), nominal (0x3), +10% (0x6), +20% (0x5), +30% (0x4) */
494#define TDA985x_ADJ 1<<7 /* Stereo adjust on/off (wideband and spectral */
495
496static int tda9855_volume(int val) { return val/0x2e8+0x27; }
497static int tda9855_bass(int val) { return val/0xccc+0x06; }
498static int tda9855_treble(int val) { return (val/0x1c71+0x3)<<1; }
499
500static int tda985x_getmode(struct CHIPSTATE *chip)
501{
502 int mode;
503
504 mode = ((TDA985x_STP | TDA985x_SAPP) &
505 chip_read(chip)) >> 4;
506 /* Add mono mode regardless of SAP and stereo */
507 /* Allows forced mono */
508 return mode | VIDEO_SOUND_MONO;
509}
510
511static void tda985x_setmode(struct CHIPSTATE *chip, int mode)
512{
513 int update = 1;
514 int c6 = chip->shadow.bytes[TDA985x_C6+1] & 0x3f;
515
516 switch (mode) {
517 case VIDEO_SOUND_MONO:
518 c6 |= TDA985x_MONO;
519 break;
520 case VIDEO_SOUND_STEREO:
521 c6 |= TDA985x_STEREO;
522 break;
523 case VIDEO_SOUND_LANG1:
524 c6 |= TDA985x_SAP;
525 break;
526 default:
527 update = 0;
528 }
529 if (update)
530 chip_write(chip,TDA985x_C6,c6);
531}
532
533
534/* ---------------------------------------------------------------------- */
535/* audio chip descriptions - defines+functions for tda9873h */
536
537/* Subaddresses for TDA9873H */
538
539#define TDA9873_SW 0x00 /* Switching */
540#define TDA9873_AD 0x01 /* Adjust */
541#define TDA9873_PT 0x02 /* Port */
542
543/* Subaddress 0x00: Switching Data
544 * B7..B0:
545 *
546 * B1, B0: Input source selection
547 * 0, 0 internal
548 * 1, 0 external stereo
549 * 0, 1 external mono
550 */
551#define TDA9873_INP_MASK 3
552#define TDA9873_INTERNAL 0
553#define TDA9873_EXT_STEREO 2
554#define TDA9873_EXT_MONO 1
555
556/* B3, B2: output signal select
557 * B4 : transmission mode
558 * 0, 0, 1 Mono
559 * 1, 0, 0 Stereo
560 * 1, 1, 1 Stereo (reversed channel)
561 * 0, 0, 0 Dual AB
562 * 0, 0, 1 Dual AA
563 * 0, 1, 0 Dual BB
564 * 0, 1, 1 Dual BA
565 */
566
567#define TDA9873_TR_MASK (7 << 2)
568#define TDA9873_TR_MONO 4
569#define TDA9873_TR_STEREO 1 << 4
570#define TDA9873_TR_REVERSE (1 << 3) & (1 << 2)
571#define TDA9873_TR_DUALA 1 << 2
572#define TDA9873_TR_DUALB 1 << 3
573
574/* output level controls
575 * B5: output level switch (0 = reduced gain, 1 = normal gain)
576 * B6: mute (1 = muted)
577 * B7: auto-mute (1 = auto-mute enabled)
578 */
579
580#define TDA9873_GAIN_NORMAL 1 << 5
581#define TDA9873_MUTE 1 << 6
582#define TDA9873_AUTOMUTE 1 << 7
583
584/* Subaddress 0x01: Adjust/standard */
585
586/* Lower 4 bits (C3..C0) control stereo adjustment on R channel (-0.6 - +0.7 dB)
587 * Recommended value is +0 dB
588 */
589
590#define TDA9873_STEREO_ADJ 0x06 /* 0dB gain */
591
592/* Bits C6..C4 control FM stantard
593 * C6, C5, C4
594 * 0, 0, 0 B/G (PAL FM)
595 * 0, 0, 1 M
596 * 0, 1, 0 D/K(1)
597 * 0, 1, 1 D/K(2)
598 * 1, 0, 0 D/K(3)
599 * 1, 0, 1 I
600 */
601#define TDA9873_BG 0
602#define TDA9873_M 1
603#define TDA9873_DK1 2
604#define TDA9873_DK2 3
605#define TDA9873_DK3 4
606#define TDA9873_I 5
607
608/* C7 controls identification response time (1=fast/0=normal)
609 */
610#define TDA9873_IDR_NORM 0
611#define TDA9873_IDR_FAST 1 << 7
612
613
614/* Subaddress 0x02: Port data */
615
616/* E1, E0 free programmable ports P1/P2
617 0, 0 both ports low
618 0, 1 P1 high
619 1, 0 P2 high
620 1, 1 both ports high
621*/
622
623#define TDA9873_PORTS 3
624
625/* E2: test port */
626#define TDA9873_TST_PORT 1 << 2
627
628/* E5..E3 control mono output channel (together with transmission mode bit B4)
629 *
630 * E5 E4 E3 B4 OUTM
631 * 0 0 0 0 mono
632 * 0 0 1 0 DUAL B
633 * 0 1 0 1 mono (from stereo decoder)
634 */
635#define TDA9873_MOUT_MONO 0
636#define TDA9873_MOUT_FMONO 0
637#define TDA9873_MOUT_DUALA 0
638#define TDA9873_MOUT_DUALB 1 << 3
639#define TDA9873_MOUT_ST 1 << 4
640#define TDA9873_MOUT_EXTM (1 << 4 ) & (1 << 3)
641#define TDA9873_MOUT_EXTL 1 << 5
642#define TDA9873_MOUT_EXTR (1 << 5 ) & (1 << 3)
643#define TDA9873_MOUT_EXTLR (1 << 5 ) & (1 << 4)
644#define TDA9873_MOUT_MUTE (1 << 5 ) & (1 << 4) & (1 << 3)
645
646/* Status bits: (chip read) */
647#define TDA9873_PONR 0 /* Power-on reset detected if = 1 */
648#define TDA9873_STEREO 2 /* Stereo sound is identified */
649#define TDA9873_DUAL 4 /* Dual sound is identified */
650
651static int tda9873_getmode(struct CHIPSTATE *chip)
652{
653 int val,mode;
654
655 val = chip_read(chip);
656 mode = VIDEO_SOUND_MONO;
657 if (val & TDA9873_STEREO)
658 mode |= VIDEO_SOUND_STEREO;
659 if (val & TDA9873_DUAL)
660 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
661 dprintk ("tda9873_getmode(): raw chip read: %d, return: %d\n",
662 val, mode);
663 return mode;
664}
665
666static void tda9873_setmode(struct CHIPSTATE *chip, int mode)
667{
668 int sw_data = chip->shadow.bytes[TDA9873_SW+1] & ~ TDA9873_TR_MASK;
669 /* int adj_data = chip->shadow.bytes[TDA9873_AD+1] ; */
670
671 if ((sw_data & TDA9873_INP_MASK) != TDA9873_INTERNAL) {
672 dprintk("tda9873_setmode(): external input\n");
673 return;
674 }
675
676 dprintk("tda9873_setmode(): chip->shadow.bytes[%d] = %d\n", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]);
677 dprintk("tda9873_setmode(): sw_data = %d\n", sw_data);
678
679 switch (mode) {
680 case VIDEO_SOUND_MONO:
681 sw_data |= TDA9873_TR_MONO;
682 break;
683 case VIDEO_SOUND_STEREO:
684 sw_data |= TDA9873_TR_STEREO;
685 break;
686 case VIDEO_SOUND_LANG1:
687 sw_data |= TDA9873_TR_DUALA;
688 break;
689 case VIDEO_SOUND_LANG2:
690 sw_data |= TDA9873_TR_DUALB;
691 break;
692 default:
693 chip->mode = 0;
694 return;
695 }
696
697 chip_write(chip, TDA9873_SW, sw_data);
698 dprintk("tda9873_setmode(): req. mode %d; chip_write: %d\n",
699 mode, sw_data);
700}
701
702static int tda9873_checkit(struct CHIPSTATE *chip)
703{
704 int rc;
705
706 if (-1 == (rc = chip_read2(chip,254)))
707 return 0;
708 return (rc & ~0x1f) == 0x80;
709}
710
711
712/* ---------------------------------------------------------------------- */
713/* audio chip description - defines+functions for tda9874h and tda9874a */
714/* Dariusz Kowalewski <darekk@automex.pl> */
715
716/* Subaddresses for TDA9874H and TDA9874A (slave rx) */
717#define TDA9874A_AGCGR 0x00 /* AGC gain */
718#define TDA9874A_GCONR 0x01 /* general config */
719#define TDA9874A_MSR 0x02 /* monitor select */
720#define TDA9874A_C1FRA 0x03 /* carrier 1 freq. */
721#define TDA9874A_C1FRB 0x04 /* carrier 1 freq. */
722#define TDA9874A_C1FRC 0x05 /* carrier 1 freq. */
723#define TDA9874A_C2FRA 0x06 /* carrier 2 freq. */
724#define TDA9874A_C2FRB 0x07 /* carrier 2 freq. */
725#define TDA9874A_C2FRC 0x08 /* carrier 2 freq. */
726#define TDA9874A_DCR 0x09 /* demodulator config */
727#define TDA9874A_FMER 0x0a /* FM de-emphasis */
728#define TDA9874A_FMMR 0x0b /* FM dematrix */
729#define TDA9874A_C1OLAR 0x0c /* ch.1 output level adj. */
730#define TDA9874A_C2OLAR 0x0d /* ch.2 output level adj. */
731#define TDA9874A_NCONR 0x0e /* NICAM config */
732#define TDA9874A_NOLAR 0x0f /* NICAM output level adj. */
733#define TDA9874A_NLELR 0x10 /* NICAM lower error limit */
734#define TDA9874A_NUELR 0x11 /* NICAM upper error limit */
735#define TDA9874A_AMCONR 0x12 /* audio mute control */
736#define TDA9874A_SDACOSR 0x13 /* stereo DAC output select */
737#define TDA9874A_AOSR 0x14 /* analog output select */
738#define TDA9874A_DAICONR 0x15 /* digital audio interface config */
739#define TDA9874A_I2SOSR 0x16 /* I2S-bus output select */
740#define TDA9874A_I2SOLAR 0x17 /* I2S-bus output level adj. */
741#define TDA9874A_MDACOSR 0x18 /* mono DAC output select (tda9874a) */
742#define TDA9874A_ESP 0xFF /* easy standard progr. (tda9874a) */
743
744/* Subaddresses for TDA9874H and TDA9874A (slave tx) */
745#define TDA9874A_DSR 0x00 /* device status */
746#define TDA9874A_NSR 0x01 /* NICAM status */
747#define TDA9874A_NECR 0x02 /* NICAM error count */
748#define TDA9874A_DR1 0x03 /* add. data LSB */
749#define TDA9874A_DR2 0x04 /* add. data MSB */
750#define TDA9874A_LLRA 0x05 /* monitor level read-out LSB */
751#define TDA9874A_LLRB 0x06 /* monitor level read-out MSB */
752#define TDA9874A_SIFLR 0x07 /* SIF level */
753#define TDA9874A_TR2 252 /* test reg. 2 */
754#define TDA9874A_TR1 253 /* test reg. 1 */
755#define TDA9874A_DIC 254 /* device id. code */
756#define TDA9874A_SIC 255 /* software id. code */
757
758
759static int tda9874a_mode = 1; /* 0: A2, 1: NICAM */
760static int tda9874a_GCONR = 0xc0; /* default config. input pin: SIFSEL=0 */
761static int tda9874a_NCONR = 0x01; /* default NICAM config.: AMSEL=0,AMUTE=1 */
762static int tda9874a_ESP = 0x07; /* default standard: NICAM D/K */
763static int tda9874a_dic = -1; /* device id. code */
764
765/* insmod options for tda9874a */
766static unsigned int tda9874a_SIF = UNSET;
767static unsigned int tda9874a_AMSEL = UNSET;
768static unsigned int tda9874a_STD = UNSET;
769module_param(tda9874a_SIF, int, 0444);
770module_param(tda9874a_AMSEL, int, 0444);
771module_param(tda9874a_STD, int, 0444);
772
773/*
774 * initialization table for tda9874 decoder:
775 * - carrier 1 freq. registers (3 bytes)
776 * - carrier 2 freq. registers (3 bytes)
777 * - demudulator config register
778 * - FM de-emphasis register (slow identification mode)
779 * Note: frequency registers must be written in single i2c transfer.
780 */
781static struct tda9874a_MODES {
782 char *name;
783 audiocmd cmd;
784} tda9874a_modelist[9] = {
785 { "A2, B/G",
786 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x77,0xA0,0x00, 0x00,0x00 }} },
787 { "A2, M (Korea)",
788 { 9, { TDA9874A_C1FRA, 0x5D,0xC0,0x00, 0x62,0x6A,0xAA, 0x20,0x22 }} },
789 { "A2, D/K (1)",
790 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x82,0x60,0x00, 0x00,0x00 }} },
791 { "A2, D/K (2)",
792 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x8C,0x75,0x55, 0x00,0x00 }} },
793 { "A2, D/K (3)",
794 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x77,0xA0,0x00, 0x00,0x00 }} },
795 { "NICAM, I",
796 { 9, { TDA9874A_C1FRA, 0x7D,0x00,0x00, 0x88,0x8A,0xAA, 0x08,0x33 }} },
797 { "NICAM, B/G",
798 { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x79,0xEA,0xAA, 0x08,0x33 }} },
799 { "NICAM, D/K", /* default */
800 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x08,0x33 }} },
801 { "NICAM, L",
802 { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x09,0x33 }} }
803};
804
805static int tda9874a_setup(struct CHIPSTATE *chip)
806{
807 chip_write(chip, TDA9874A_AGCGR, 0x00); /* 0 dB */
808 chip_write(chip, TDA9874A_GCONR, tda9874a_GCONR);
809 chip_write(chip, TDA9874A_MSR, (tda9874a_mode) ? 0x03:0x02);
810 if(tda9874a_dic == 0x11) {
811 chip_write(chip, TDA9874A_FMMR, 0x80);
812 } else { /* dic == 0x07 */
813 chip_cmd(chip,"tda9874_modelist",&tda9874a_modelist[tda9874a_STD].cmd);
814 chip_write(chip, TDA9874A_FMMR, 0x00);
815 }
816 chip_write(chip, TDA9874A_C1OLAR, 0x00); /* 0 dB */
817 chip_write(chip, TDA9874A_C2OLAR, 0x00); /* 0 dB */
818 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
819 chip_write(chip, TDA9874A_NOLAR, 0x00); /* 0 dB */
820 /* Note: If signal quality is poor you may want to change NICAM */
821 /* error limit registers (NLELR and NUELR) to some greater values. */
822 /* Then the sound would remain stereo, but won't be so clear. */
823 chip_write(chip, TDA9874A_NLELR, 0x14); /* default */
824 chip_write(chip, TDA9874A_NUELR, 0x50); /* default */
825
826 if(tda9874a_dic == 0x11) {
827 chip_write(chip, TDA9874A_AMCONR, 0xf9);
828 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
829 chip_write(chip, TDA9874A_AOSR, 0x80);
830 chip_write(chip, TDA9874A_MDACOSR, (tda9874a_mode) ? 0x82:0x80);
831 chip_write(chip, TDA9874A_ESP, tda9874a_ESP);
832 } else { /* dic == 0x07 */
833 chip_write(chip, TDA9874A_AMCONR, 0xfb);
834 chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
835 chip_write(chip, TDA9874A_AOSR, 0x00); // or 0x10
836 }
837 dprintk("tda9874a_setup(): %s [0x%02X].\n",
838 tda9874a_modelist[tda9874a_STD].name,tda9874a_STD);
839 return 1;
840}
841
842static int tda9874a_getmode(struct CHIPSTATE *chip)
843{
844 int dsr,nsr,mode;
845 int necr; /* just for debugging */
846
847 mode = VIDEO_SOUND_MONO;
848
849 if(-1 == (dsr = chip_read2(chip,TDA9874A_DSR)))
850 return mode;
851 if(-1 == (nsr = chip_read2(chip,TDA9874A_NSR)))
852 return mode;
853 if(-1 == (necr = chip_read2(chip,TDA9874A_NECR)))
854 return mode;
855
856 /* need to store dsr/nsr somewhere */
857 chip->shadow.bytes[MAXREGS-2] = dsr;
858 chip->shadow.bytes[MAXREGS-1] = nsr;
859
860 if(tda9874a_mode) {
861 /* Note: DSR.RSSF and DSR.AMSTAT bits are also checked.
862 * If NICAM auto-muting is enabled, DSR.AMSTAT=1 indicates
863 * that sound has (temporarily) switched from NICAM to
864 * mono FM (or AM) on 1st sound carrier due to high NICAM bit
865 * error count. So in fact there is no stereo in this case :-(
866 * But changing the mode to VIDEO_SOUND_MONO would switch
867 * external 4052 multiplexer in audio_hook().
868 */
869#if 0
870 if((nsr & 0x02) && !(dsr & 0x10)) /* NSR.S/MB=1 and DSR.AMSTAT=0 */
871 mode |= VIDEO_SOUND_STEREO;
872#else
873 if(nsr & 0x02) /* NSR.S/MB=1 */
874 mode |= VIDEO_SOUND_STEREO;
875#endif
876 if(nsr & 0x01) /* NSR.D/SB=1 */
877 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
878 } else {
879 if(dsr & 0x02) /* DSR.IDSTE=1 */
880 mode |= VIDEO_SOUND_STEREO;
881 if(dsr & 0x04) /* DSR.IDDUA=1 */
882 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
883 }
884
885 dprintk("tda9874a_getmode(): DSR=0x%X, NSR=0x%X, NECR=0x%X, return: %d.\n",
886 dsr, nsr, necr, mode);
887 return mode;
888}
889
890static void tda9874a_setmode(struct CHIPSTATE *chip, int mode)
891{
892 /* Disable/enable NICAM auto-muting (based on DSR.RSSF status bit). */
893 /* If auto-muting is disabled, we can hear a signal of degrading quality. */
894 if(tda9874a_mode) {
895 if(chip->shadow.bytes[MAXREGS-2] & 0x20) /* DSR.RSSF=1 */
896 tda9874a_NCONR &= 0xfe; /* enable */
897 else
898 tda9874a_NCONR |= 0x01; /* disable */
899 chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
900 }
901
902 /* Note: TDA9874A supports automatic FM dematrixing (FMMR register)
903 * and has auto-select function for audio output (AOSR register).
904 * Old TDA9874H doesn't support these features.
905 * TDA9874A also has additional mono output pin (OUTM), which
906 * on same (all?) tv-cards is not used, anyway (as well as MONOIN).
907 */
908 if(tda9874a_dic == 0x11) {
909 int aosr = 0x80;
910 int mdacosr = (tda9874a_mode) ? 0x82:0x80;
911
912 switch(mode) {
913 case VIDEO_SOUND_MONO:
914 case VIDEO_SOUND_STEREO:
915 break;
916 case VIDEO_SOUND_LANG1:
917 aosr = 0x80; /* auto-select, dual A/A */
918 mdacosr = (tda9874a_mode) ? 0x82:0x80;
919 break;
920 case VIDEO_SOUND_LANG2:
921 aosr = 0xa0; /* auto-select, dual B/B */
922 mdacosr = (tda9874a_mode) ? 0x83:0x81;
923 break;
924 default:
925 chip->mode = 0;
926 return;
927 }
928 chip_write(chip, TDA9874A_AOSR, aosr);
929 chip_write(chip, TDA9874A_MDACOSR, mdacosr);
930
931 dprintk("tda9874a_setmode(): req. mode %d; AOSR=0x%X, MDACOSR=0x%X.\n",
932 mode, aosr, mdacosr);
933
934 } else { /* dic == 0x07 */
935 int fmmr,aosr;
936
937 switch(mode) {
938 case VIDEO_SOUND_MONO:
939 fmmr = 0x00; /* mono */
940 aosr = 0x10; /* A/A */
941 break;
942 case VIDEO_SOUND_STEREO:
943 if(tda9874a_mode) {
944 fmmr = 0x00;
945 aosr = 0x00; /* handled by NICAM auto-mute */
946 } else {
947 fmmr = (tda9874a_ESP == 1) ? 0x05 : 0x04; /* stereo */
948 aosr = 0x00;
949 }
950 break;
951 case VIDEO_SOUND_LANG1:
952 fmmr = 0x02; /* dual */
953 aosr = 0x10; /* dual A/A */
954 break;
955 case VIDEO_SOUND_LANG2:
956 fmmr = 0x02; /* dual */
957 aosr = 0x20; /* dual B/B */
958 break;
959 default:
960 chip->mode = 0;
961 return;
962 }
963 chip_write(chip, TDA9874A_FMMR, fmmr);
964 chip_write(chip, TDA9874A_AOSR, aosr);
965
966 dprintk("tda9874a_setmode(): req. mode %d; FMMR=0x%X, AOSR=0x%X.\n",
967 mode, fmmr, aosr);
968 }
969}
970
971static int tda9874a_checkit(struct CHIPSTATE *chip)
972{
973 int dic,sic; /* device id. and software id. codes */
974
975 if(-1 == (dic = chip_read2(chip,TDA9874A_DIC)))
976 return 0;
977 if(-1 == (sic = chip_read2(chip,TDA9874A_SIC)))
978 return 0;
979
980 dprintk("tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", dic, sic);
981
982 if((dic == 0x11)||(dic == 0x07)) {
983 printk("tvaudio: found tda9874%s.\n", (dic == 0x11) ? "a":"h");
984 tda9874a_dic = dic; /* remember device id. */
985 return 1;
986 }
987 return 0; /* not found */
988}
989
990static int tda9874a_initialize(struct CHIPSTATE *chip)
991{
992 if (tda9874a_SIF > 2)
993 tda9874a_SIF = 1;
994 if (tda9874a_STD >= 8)
995 tda9874a_STD = 0;
996 if(tda9874a_AMSEL > 1)
997 tda9874a_AMSEL = 0;
998
999 if(tda9874a_SIF == 1)
1000 tda9874a_GCONR = 0xc0; /* sound IF input 1 */
1001 else
1002 tda9874a_GCONR = 0xc1; /* sound IF input 2 */
1003
1004 tda9874a_ESP = tda9874a_STD;
1005 tda9874a_mode = (tda9874a_STD < 5) ? 0 : 1;
1006
1007 if(tda9874a_AMSEL == 0)
1008 tda9874a_NCONR = 0x01; /* auto-mute: analog mono input */
1009 else
1010 tda9874a_NCONR = 0x05; /* auto-mute: 1st carrier FM or AM */
1011
1012 tda9874a_setup(chip);
1013 return 0;
1014}
1015
1016
1017/* ---------------------------------------------------------------------- */
1018/* audio chip descriptions - defines+functions for tea6420 */
1019
1020#define TEA6300_VL 0x00 /* volume left */
1021#define TEA6300_VR 0x01 /* volume right */
1022#define TEA6300_BA 0x02 /* bass */
1023#define TEA6300_TR 0x03 /* treble */
1024#define TEA6300_FA 0x04 /* fader control */
1025#define TEA6300_S 0x05 /* switch register */
1026 /* values for those registers: */
1027#define TEA6300_S_SA 0x01 /* stereo A input */
1028#define TEA6300_S_SB 0x02 /* stereo B */
1029#define TEA6300_S_SC 0x04 /* stereo C */
1030#define TEA6300_S_GMU 0x80 /* general mute */
1031
1032#define TEA6320_V 0x00 /* volume (0-5)/loudness off (6)/zero crossing mute(7) */
1033#define TEA6320_FFR 0x01 /* fader front right (0-5) */
1034#define TEA6320_FFL 0x02 /* fader front left (0-5) */
1035#define TEA6320_FRR 0x03 /* fader rear right (0-5) */
1036#define TEA6320_FRL 0x04 /* fader rear left (0-5) */
1037#define TEA6320_BA 0x05 /* bass (0-4) */
1038#define TEA6320_TR 0x06 /* treble (0-4) */
1039#define TEA6320_S 0x07 /* switch register */
1040 /* values for those registers: */
1041#define TEA6320_S_SA 0x07 /* stereo A input */
1042#define TEA6320_S_SB 0x06 /* stereo B */
1043#define TEA6320_S_SC 0x05 /* stereo C */
1044#define TEA6320_S_SD 0x04 /* stereo D */
1045#define TEA6320_S_GMU 0x80 /* general mute */
1046
1047#define TEA6420_S_SA 0x00 /* stereo A input */
1048#define TEA6420_S_SB 0x01 /* stereo B */
1049#define TEA6420_S_SC 0x02 /* stereo C */
1050#define TEA6420_S_SD 0x03 /* stereo D */
1051#define TEA6420_S_SE 0x04 /* stereo E */
1052#define TEA6420_S_GMU 0x05 /* general mute */
1053
1054static int tea6300_shift10(int val) { return val >> 10; }
1055static int tea6300_shift12(int val) { return val >> 12; }
1056
1057/* Assumes 16bit input (values 0x3f to 0x0c are unique, values less than */
1058/* 0x0c mirror those immediately higher) */
1059static int tea6320_volume(int val) { return (val / (65535/(63-12)) + 12) & 0x3f; }
1060static int tea6320_shift11(int val) { return val >> 11; }
1061static int tea6320_initialize(struct CHIPSTATE * chip)
1062{
1063 chip_write(chip, TEA6320_FFR, 0x3f);
1064 chip_write(chip, TEA6320_FFL, 0x3f);
1065 chip_write(chip, TEA6320_FRR, 0x3f);
1066 chip_write(chip, TEA6320_FRL, 0x3f);
1067
1068 return 0;
1069}
1070
1071
1072/* ---------------------------------------------------------------------- */
1073/* audio chip descriptions - defines+functions for tda8425 */
1074
1075#define TDA8425_VL 0x00 /* volume left */
1076#define TDA8425_VR 0x01 /* volume right */
1077#define TDA8425_BA 0x02 /* bass */
1078#define TDA8425_TR 0x03 /* treble */
1079#define TDA8425_S1 0x08 /* switch functions */
1080 /* values for those registers: */
1081#define TDA8425_S1_OFF 0xEE /* audio off (mute on) */
1082#define TDA8425_S1_CH1 0xCE /* audio channel 1 (mute off) - "linear stereo" mode */
1083#define TDA8425_S1_CH2 0xCF /* audio channel 2 (mute off) - "linear stereo" mode */
1084#define TDA8425_S1_MU 0x20 /* mute bit */
1085#define TDA8425_S1_STEREO 0x18 /* stereo bits */
1086#define TDA8425_S1_STEREO_SPATIAL 0x18 /* spatial stereo */
1087#define TDA8425_S1_STEREO_LINEAR 0x08 /* linear stereo */
1088#define TDA8425_S1_STEREO_PSEUDO 0x10 /* pseudo stereo */
1089#define TDA8425_S1_STEREO_MONO 0x00 /* forced mono */
1090#define TDA8425_S1_ML 0x06 /* language selector */
1091#define TDA8425_S1_ML_SOUND_A 0x02 /* sound a */
1092#define TDA8425_S1_ML_SOUND_B 0x04 /* sound b */
1093#define TDA8425_S1_ML_STEREO 0x06 /* stereo */
1094#define TDA8425_S1_IS 0x01 /* channel selector */
1095
1096
1097static int tda8425_shift10(int val) { return (val >> 10) | 0xc0; }
1098static int tda8425_shift12(int val) { return (val >> 12) | 0xf0; }
1099
1100static int tda8425_initialize(struct CHIPSTATE *chip)
1101{
1102 struct CHIPDESC *desc = chiplist + chip->type;
1103 int inputmap[8] = { /* tuner */ TDA8425_S1_CH2, /* radio */ TDA8425_S1_CH1,
1104 /* extern */ TDA8425_S1_CH1, /* intern */ TDA8425_S1_OFF,
1105 /* off */ TDA8425_S1_OFF, /* on */ TDA8425_S1_CH2};
1106
1107 if (chip->c.adapter->id == (I2C_ALGO_BIT | I2C_HW_B_RIVA)) {
1108 memcpy (desc->inputmap, inputmap, sizeof (inputmap));
1109 }
1110 return 0;
1111}
1112
1113static void tda8425_setmode(struct CHIPSTATE *chip, int mode)
1114{
1115 int s1 = chip->shadow.bytes[TDA8425_S1+1] & 0xe1;
1116
1117 if (mode & VIDEO_SOUND_LANG1) {
1118 s1 |= TDA8425_S1_ML_SOUND_A;
1119 s1 |= TDA8425_S1_STEREO_PSEUDO;
1120
1121 } else if (mode & VIDEO_SOUND_LANG2) {
1122 s1 |= TDA8425_S1_ML_SOUND_B;
1123 s1 |= TDA8425_S1_STEREO_PSEUDO;
1124
1125 } else {
1126 s1 |= TDA8425_S1_ML_STEREO;
1127
1128 if (mode & VIDEO_SOUND_MONO)
1129 s1 |= TDA8425_S1_STEREO_MONO;
1130 if (mode & VIDEO_SOUND_STEREO)
1131 s1 |= TDA8425_S1_STEREO_SPATIAL;
1132 }
1133 chip_write(chip,TDA8425_S1,s1);
1134}
1135
1136
1137/* ---------------------------------------------------------------------- */
1138/* audio chip descriptions - defines+functions for pic16c54 (PV951) */
1139
1140/* the registers of 16C54, I2C sub address. */
1141#define PIC16C54_REG_KEY_CODE 0x01 /* Not use. */
1142#define PIC16C54_REG_MISC 0x02
1143
1144/* bit definition of the RESET register, I2C data. */
1145#define PIC16C54_MISC_RESET_REMOTE_CTL 0x01 /* bit 0, Reset to receive the key */
1146 /* code of remote controller */
1147#define PIC16C54_MISC_MTS_MAIN 0x02 /* bit 1 */
1148#define PIC16C54_MISC_MTS_SAP 0x04 /* bit 2 */
1149#define PIC16C54_MISC_MTS_BOTH 0x08 /* bit 3 */
1150#define PIC16C54_MISC_SND_MUTE 0x10 /* bit 4, Mute Audio(Line-in and Tuner) */
1151#define PIC16C54_MISC_SND_NOTMUTE 0x20 /* bit 5 */
1152#define PIC16C54_MISC_SWITCH_TUNER 0x40 /* bit 6 , Switch to Line-in */
1153#define PIC16C54_MISC_SWITCH_LINE 0x80 /* bit 7 , Switch to Tuner */
1154
1155/* ---------------------------------------------------------------------- */
1156/* audio chip descriptions - defines+functions for TA8874Z */
1157
1158// write 1st byte
1159#define TA8874Z_LED_STE 0x80
1160#define TA8874Z_LED_BIL 0x40
1161#define TA8874Z_LED_EXT 0x20
1162#define TA8874Z_MONO_SET 0x10
1163#define TA8874Z_MUTE 0x08
1164#define TA8874Z_F_MONO 0x04
1165#define TA8874Z_MODE_SUB 0x02
1166#define TA8874Z_MODE_MAIN 0x01
1167
1168// write 2nd byte
1169//#define TA8874Z_TI 0x80 // test mode
1170#define TA8874Z_SEPARATION 0x3f
1171#define TA8874Z_SEPARATION_DEFAULT 0x10
1172
1173// read
1174#define TA8874Z_B1 0x80
1175#define TA8874Z_B0 0x40
1176#define TA8874Z_CHAG_FLAG 0x20
1177
1178// B1 B0
1179// mono L H
1180// stereo L L
1181// BIL H L
1182
1183static int ta8874z_getmode(struct CHIPSTATE *chip)
1184{
1185 int val, mode;
1186
1187 val = chip_read(chip);
1188 mode = VIDEO_SOUND_MONO;
1189 if (val & TA8874Z_B1){
1190 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
1191 }else if (!(val & TA8874Z_B0)){
1192 mode |= VIDEO_SOUND_STEREO;
1193 }
1194 //dprintk ("ta8874z_getmode(): raw chip read: 0x%02x, return: 0x%02x\n", val, mode);
1195 return mode;
1196}
1197
1198static audiocmd ta8874z_stereo = { 2, {0, TA8874Z_SEPARATION_DEFAULT}};
1199static audiocmd ta8874z_mono = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}};
1200static audiocmd ta8874z_main = {2, { 0, TA8874Z_SEPARATION_DEFAULT}};
1201static audiocmd ta8874z_sub = {2, { TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}};
1202
1203static void ta8874z_setmode(struct CHIPSTATE *chip, int mode)
1204{
1205 int update = 1;
1206 audiocmd *t = NULL;
1207 dprintk("ta8874z_setmode(): mode: 0x%02x\n", mode);
1208
1209 switch(mode){
1210 case VIDEO_SOUND_MONO:
1211 t = &ta8874z_mono;
1212 break;
1213 case VIDEO_SOUND_STEREO:
1214 t = &ta8874z_stereo;
1215 break;
1216 case VIDEO_SOUND_LANG1:
1217 t = &ta8874z_main;
1218 break;
1219 case VIDEO_SOUND_LANG2:
1220 t = &ta8874z_sub;
1221 break;
1222 default:
1223 update = 0;
1224 }
1225
1226 if(update)
1227 chip_cmd(chip, "TA8874Z", t);
1228}
1229
1230static int ta8874z_checkit(struct CHIPSTATE *chip)
1231{
1232 int rc;
1233 rc = chip_read(chip);
1234 return ((rc & 0x1f) == 0x1f) ? 1 : 0;
1235}
1236
1237/* ---------------------------------------------------------------------- */
1238/* audio chip descriptions - struct CHIPDESC */
1239
1240/* insmod options to enable/disable individual audio chips */
1241int tda8425 = 1;
1242int tda9840 = 1;
1243int tda9850 = 1;
1244int tda9855 = 1;
1245int tda9873 = 1;
1246int tda9874a = 1;
1247int tea6300 = 0; // address clash with msp34xx
1248int tea6320 = 0; // address clash with msp34xx
1249int tea6420 = 1;
1250int pic16c54 = 1;
1251int ta8874z = 0; // address clash with tda9840
1252
1253module_param(tda8425, int, 0444);
1254module_param(tda9840, int, 0444);
1255module_param(tda9850, int, 0444);
1256module_param(tda9855, int, 0444);
1257module_param(tda9873, int, 0444);
1258module_param(tda9874a, int, 0444);
1259module_param(tea6300, int, 0444);
1260module_param(tea6320, int, 0444);
1261module_param(tea6420, int, 0444);
1262module_param(pic16c54, int, 0444);
1263module_param(ta8874z, int, 0444);
1264
1265static struct CHIPDESC chiplist[] = {
1266 {
1267 .name = "tda9840",
1268 .id = I2C_DRIVERID_TDA9840,
1269 .insmodopt = &tda9840,
1270 .addr_lo = I2C_TDA9840 >> 1,
1271 .addr_hi = I2C_TDA9840 >> 1,
1272 .registers = 5,
1273
1274 .getmode = tda9840_getmode,
1275 .setmode = tda9840_setmode,
1276 .checkmode = generic_checkmode,
1277
1278 .init = { 2, { TDA9840_TEST, TDA9840_TEST_INT1SN
1279 /* ,TDA9840_SW, TDA9840_MONO */} }
1280 },
1281 {
1282 .name = "tda9873h",
1283 .id = I2C_DRIVERID_TDA9873,
1284 .checkit = tda9873_checkit,
1285 .insmodopt = &tda9873,
1286 .addr_lo = I2C_TDA985x_L >> 1,
1287 .addr_hi = I2C_TDA985x_H >> 1,
1288 .registers = 3,
1289 .flags = CHIP_HAS_INPUTSEL,
1290
1291 .getmode = tda9873_getmode,
1292 .setmode = tda9873_setmode,
1293 .checkmode = generic_checkmode,
1294
1295 .init = { 4, { TDA9873_SW, 0xa4, 0x06, 0x03 } },
1296 .inputreg = TDA9873_SW,
1297 .inputmute = TDA9873_MUTE | TDA9873_AUTOMUTE,
1298 .inputmap = {0xa0, 0xa2, 0xa0, 0xa0, 0xc0},
1299 .inputmask = TDA9873_INP_MASK|TDA9873_MUTE|TDA9873_AUTOMUTE,
1300
1301 },
1302 {
1303 .name = "tda9874h/a",
1304 .id = I2C_DRIVERID_TDA9874,
1305 .checkit = tda9874a_checkit,
1306 .initialize = tda9874a_initialize,
1307 .insmodopt = &tda9874a,
1308 .addr_lo = I2C_TDA9874 >> 1,
1309 .addr_hi = I2C_TDA9874 >> 1,
1310
1311 .getmode = tda9874a_getmode,
1312 .setmode = tda9874a_setmode,
1313 .checkmode = generic_checkmode,
1314 },
1315 {
1316 .name = "tda9850",
1317 .id = I2C_DRIVERID_TDA9850,
1318 .insmodopt = &tda9850,
1319 .addr_lo = I2C_TDA985x_L >> 1,
1320 .addr_hi = I2C_TDA985x_H >> 1,
1321 .registers = 11,
1322
1323 .getmode = tda985x_getmode,
1324 .setmode = tda985x_setmode,
1325
1326 .init = { 8, { TDA9850_C4, 0x08, 0x08, TDA985x_STEREO, 0x07, 0x10, 0x10, 0x03 } }
1327 },
1328 {
1329 .name = "tda9855",
1330 .id = I2C_DRIVERID_TDA9855,
1331 .insmodopt = &tda9855,
1332 .addr_lo = I2C_TDA985x_L >> 1,
1333 .addr_hi = I2C_TDA985x_H >> 1,
1334 .registers = 11,
1335 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE,
1336
1337 .leftreg = TDA9855_VL,
1338 .rightreg = TDA9855_VR,
1339 .bassreg = TDA9855_BA,
1340 .treblereg = TDA9855_TR,
1341 .volfunc = tda9855_volume,
1342 .bassfunc = tda9855_bass,
1343 .treblefunc = tda9855_treble,
1344
1345 .getmode = tda985x_getmode,
1346 .setmode = tda985x_setmode,
1347
1348 .init = { 12, { 0, 0x6f, 0x6f, 0x0e, 0x07<<1, 0x8<<2,
1349 TDA9855_MUTE | TDA9855_AVL | TDA9855_LOUD | TDA9855_INT,
1350 TDA985x_STEREO | TDA9855_LINEAR | TDA9855_TZCM | TDA9855_VZCM,
1351 0x07, 0x10, 0x10, 0x03 }}
1352 },
1353 {
1354 .name = "tea6300",
1355 .id = I2C_DRIVERID_TEA6300,
1356 .insmodopt = &tea6300,
1357 .addr_lo = I2C_TEA6300 >> 1,
1358 .addr_hi = I2C_TEA6300 >> 1,
1359 .registers = 6,
1360 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1361
1362 .leftreg = TEA6300_VR,
1363 .rightreg = TEA6300_VL,
1364 .bassreg = TEA6300_BA,
1365 .treblereg = TEA6300_TR,
1366 .volfunc = tea6300_shift10,
1367 .bassfunc = tea6300_shift12,
1368 .treblefunc = tea6300_shift12,
1369
1370 .inputreg = TEA6300_S,
1371 .inputmap = { TEA6300_S_SA, TEA6300_S_SB, TEA6300_S_SC },
1372 .inputmute = TEA6300_S_GMU,
1373 },
1374 {
1375 .name = "tea6320",
1376 .id = I2C_DRIVERID_TEA6300,
1377 .initialize = tea6320_initialize,
1378 .insmodopt = &tea6320,
1379 .addr_lo = I2C_TEA6300 >> 1,
1380 .addr_hi = I2C_TEA6300 >> 1,
1381 .registers = 8,
1382 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1383
1384 .leftreg = TEA6320_V,
1385 .rightreg = TEA6320_V,
1386 .bassreg = TEA6320_BA,
1387 .treblereg = TEA6320_TR,
1388 .volfunc = tea6320_volume,
1389 .bassfunc = tea6320_shift11,
1390 .treblefunc = tea6320_shift11,
1391
1392 .inputreg = TEA6320_S,
1393 .inputmap = { TEA6320_S_SA, TEA6420_S_SB, TEA6300_S_SC, TEA6320_S_SD },
1394 .inputmute = TEA6300_S_GMU,
1395 },
1396 {
1397 .name = "tea6420",
1398 .id = I2C_DRIVERID_TEA6420,
1399 .insmodopt = &tea6420,
1400 .addr_lo = I2C_TEA6420 >> 1,
1401 .addr_hi = I2C_TEA6420 >> 1,
1402 .registers = 1,
1403 .flags = CHIP_HAS_INPUTSEL,
1404
1405 .inputreg = -1,
1406 .inputmap = { TEA6420_S_SA, TEA6420_S_SB, TEA6420_S_SC },
1407 .inputmute = TEA6300_S_GMU,
1408 },
1409 {
1410 .name = "tda8425",
1411 .id = I2C_DRIVERID_TDA8425,
1412 .insmodopt = &tda8425,
1413 .addr_lo = I2C_TDA8425 >> 1,
1414 .addr_hi = I2C_TDA8425 >> 1,
1415 .registers = 9,
1416 .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1417
1418 .leftreg = TDA8425_VL,
1419 .rightreg = TDA8425_VR,
1420 .bassreg = TDA8425_BA,
1421 .treblereg = TDA8425_TR,
1422 .volfunc = tda8425_shift10,
1423 .bassfunc = tda8425_shift12,
1424 .treblefunc = tda8425_shift12,
1425
1426 .inputreg = TDA8425_S1,
1427 .inputmap = { TDA8425_S1_CH1, TDA8425_S1_CH1, TDA8425_S1_CH1 },
1428 .inputmute = TDA8425_S1_OFF,
1429
1430 .setmode = tda8425_setmode,
1431 .initialize = tda8425_initialize,
1432 },
1433 {
1434 .name = "pic16c54 (PV951)",
1435 .id = I2C_DRIVERID_PIC16C54_PV951,
1436 .insmodopt = &pic16c54,
1437 .addr_lo = I2C_PIC16C54 >> 1,
1438 .addr_hi = I2C_PIC16C54>> 1,
1439 .registers = 2,
1440 .flags = CHIP_HAS_INPUTSEL,
1441
1442 .inputreg = PIC16C54_REG_MISC,
1443 .inputmap = {PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_TUNER,
1444 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1445 PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1446 PIC16C54_MISC_SND_MUTE,PIC16C54_MISC_SND_MUTE,
1447 PIC16C54_MISC_SND_NOTMUTE},
1448 .inputmute = PIC16C54_MISC_SND_MUTE,
1449 },
1450 {
1451 .name = "ta8874z",
1452 .id = -1,
1453 //.id = I2C_DRIVERID_TA8874Z,
1454 .checkit = ta8874z_checkit,
1455 .insmodopt = &ta8874z,
1456 .addr_lo = I2C_TDA9840 >> 1,
1457 .addr_hi = I2C_TDA9840 >> 1,
1458 .registers = 2,
1459
1460 .getmode = ta8874z_getmode,
1461 .setmode = ta8874z_setmode,
1462 .checkmode = generic_checkmode,
1463
1464 .init = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}},
1465 },
1466 { .name = NULL } /* EOF */
1467};
1468
1469
1470/* ---------------------------------------------------------------------- */
1471/* i2c registration */
1472
1473static int chip_attach(struct i2c_adapter *adap, int addr, int kind)
1474{
1475 struct CHIPSTATE *chip;
1476 struct CHIPDESC *desc;
1477
1478 chip = kmalloc(sizeof(*chip),GFP_KERNEL);
1479 if (!chip)
1480 return -ENOMEM;
1481 memset(chip,0,sizeof(*chip));
1482 memcpy(&chip->c,&client_template,sizeof(struct i2c_client));
1483 chip->c.adapter = adap;
1484 chip->c.addr = addr;
1485 i2c_set_clientdata(&chip->c, chip);
1486
1487 /* find description for the chip */
1488 dprintk("tvaudio: chip found @ i2c-addr=0x%x\n", addr<<1);
1489 for (desc = chiplist; desc->name != NULL; desc++) {
1490 if (0 == *(desc->insmodopt))
1491 continue;
1492 if (addr < desc->addr_lo ||
1493 addr > desc->addr_hi)
1494 continue;
1495 if (desc->checkit && !desc->checkit(chip))
1496 continue;
1497 break;
1498 }
1499 if (desc->name == NULL) {
1500 dprintk("tvaudio: no matching chip description found\n");
1501 return -EIO;
1502 }
1503 printk("tvaudio: found %s @ 0x%x\n", desc->name, addr<<1);
1504 dprintk("tvaudio: matches:%s%s%s.\n",
1505 (desc->flags & CHIP_HAS_VOLUME) ? " volume" : "",
1506 (desc->flags & CHIP_HAS_BASSTREBLE) ? " bass/treble" : "",
1507 (desc->flags & CHIP_HAS_INPUTSEL) ? " audiomux" : "");
1508
1509 /* fill required data structures */
1510 strcpy(i2c_clientname(&chip->c),desc->name);
1511 chip->type = desc-chiplist;
1512 chip->shadow.count = desc->registers+1;
1513 chip->prevmode = -1;
1514 /* register */
1515 i2c_attach_client(&chip->c);
1516
1517 /* initialization */
1518 if (desc->initialize != NULL)
1519 desc->initialize(chip);
1520 else
1521 chip_cmd(chip,"init",&desc->init);
1522
1523 if (desc->flags & CHIP_HAS_VOLUME) {
1524 chip->left = desc->leftinit ? desc->leftinit : 65535;
1525 chip->right = desc->rightinit ? desc->rightinit : 65535;
1526 chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
1527 chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
1528 }
1529 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1530 chip->treble = desc->trebleinit ? desc->trebleinit : 32768;
1531 chip->bass = desc->bassinit ? desc->bassinit : 32768;
1532 chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
1533 chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
1534 }
1535
1536 chip->tpid = -1;
1537 if (desc->checkmode) {
1538 /* start async thread */
1539 init_timer(&chip->wt);
1540 chip->wt.function = chip_thread_wake;
1541 chip->wt.data = (unsigned long)chip;
1542 init_waitqueue_head(&chip->wq);
1543 init_completion(&chip->texit);
1544 chip->tpid = kernel_thread(chip_thread,(void *)chip,0);
1545 if (chip->tpid < 0)
1546 printk(KERN_WARNING "%s: kernel_thread() failed\n",
1547 i2c_clientname(&chip->c));
1548 wake_up_interruptible(&chip->wq);
1549 }
1550 return 0;
1551}
1552
1553static int chip_probe(struct i2c_adapter *adap)
1554{
1555 /* don't attach on saa7146 based cards,
1556 because dedicated drivers are used */
1557 if ((adap->id & I2C_ALGO_SAA7146))
1558 return 0;
1559#ifdef I2C_CLASS_TV_ANALOG
1560 if (adap->class & I2C_CLASS_TV_ANALOG)
1561 return i2c_probe(adap, &addr_data, chip_attach);
1562#else
1563 switch (adap->id) {
1564 case I2C_ALGO_BIT | I2C_HW_B_BT848:
1565 case I2C_ALGO_BIT | I2C_HW_B_RIVA:
1566 case I2C_ALGO_SAA7134:
1567 return i2c_probe(adap, &addr_data, chip_attach);
1568 }
1569#endif
1570 return 0;
1571}
1572
1573static int chip_detach(struct i2c_client *client)
1574{
1575 struct CHIPSTATE *chip = i2c_get_clientdata(client);
1576
1577 del_timer_sync(&chip->wt);
1578 if (chip->tpid >= 0) {
1579 /* shutdown async thread */
1580 chip->done = 1;
1581 wake_up_interruptible(&chip->wq);
1582 wait_for_completion(&chip->texit);
1583 }
1584
1585 i2c_detach_client(&chip->c);
1586 kfree(chip);
1587 return 0;
1588}
1589
1590/* ---------------------------------------------------------------------- */
1591/* video4linux interface */
1592
1593static int chip_command(struct i2c_client *client,
1594 unsigned int cmd, void *arg)
1595{
1596 __u16 *sarg = arg;
1597 struct CHIPSTATE *chip = i2c_get_clientdata(client);
1598 struct CHIPDESC *desc = chiplist + chip->type;
1599
1600 dprintk("%s: chip_command 0x%x\n",i2c_clientname(&chip->c),cmd);
1601
1602 switch (cmd) {
1603 case AUDC_SET_INPUT:
1604 if (desc->flags & CHIP_HAS_INPUTSEL) {
1605 if (*sarg & 0x80)
1606 chip_write_masked(chip,desc->inputreg,desc->inputmute,desc->inputmask);
1607 else
1608 chip_write_masked(chip,desc->inputreg,desc->inputmap[*sarg],desc->inputmask);
1609 }
1610 break;
1611
1612 case AUDC_SET_RADIO:
1613 dprintk(KERN_DEBUG "tvaudio: AUDC_SET_RADIO\n");
1614 chip->norm = VIDEO_MODE_RADIO;
1615 chip->watch_stereo = 0;
1616 /* del_timer(&chip->wt); */
1617 break;
1618
1619 /* --- v4l ioctls --- */
1620 /* take care: bttv does userspace copying, we'll get a
1621 kernel pointer here... */
1622 case VIDIOCGAUDIO:
1623 {
1624 struct video_audio *va = arg;
1625
1626 if (desc->flags & CHIP_HAS_VOLUME) {
1627 va->flags |= VIDEO_AUDIO_VOLUME;
1628 va->volume = max(chip->left,chip->right);
1629 if (va->volume)
1630 va->balance = (32768*min(chip->left,chip->right))/
1631 va->volume;
1632 else
1633 va->balance = 32768;
1634 }
1635 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1636 va->flags |= VIDEO_AUDIO_BASS | VIDEO_AUDIO_TREBLE;
1637 va->bass = chip->bass;
1638 va->treble = chip->treble;
1639 }
1640 if (chip->norm != VIDEO_MODE_RADIO) {
1641 if (desc->getmode)
1642 va->mode = desc->getmode(chip);
1643 else
1644 va->mode = VIDEO_SOUND_MONO;
1645 }
1646 break;
1647 }
1648
1649 case VIDIOCSAUDIO:
1650 {
1651 struct video_audio *va = arg;
1652
1653 if (desc->flags & CHIP_HAS_VOLUME) {
1654 chip->left = (min(65536 - va->balance,32768) *
1655 va->volume) / 32768;
1656 chip->right = (min(va->balance,(__u16)32768) *
1657 va->volume) / 32768;
1658 chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
1659 chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
1660 }
1661 if (desc->flags & CHIP_HAS_BASSTREBLE) {
1662 chip->bass = va->bass;
1663 chip->treble = va->treble;
1664 chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
1665 chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
1666 }
1667 if (desc->setmode && va->mode) {
1668 chip->watch_stereo = 0;
1669 /* del_timer(&chip->wt); */
1670 chip->mode = va->mode;
1671 desc->setmode(chip,va->mode);
1672 }
1673 break;
1674 }
1675 case VIDIOCSCHAN:
1676 {
1677 struct video_channel *vc = arg;
1678
1679 dprintk(KERN_DEBUG "tvaudio: VIDIOCSCHAN\n");
1680 chip->norm = vc->norm;
1681 break;
1682 }
1683 case VIDIOCSFREQ:
1684 {
1685 chip->mode = 0; /* automatic */
1686 if (desc->checkmode) {
1687 desc->setmode(chip,VIDEO_SOUND_MONO);
1688 if (chip->prevmode != VIDEO_SOUND_MONO)
1689 chip->prevmode = -1; /* reset previous mode */
1690 mod_timer(&chip->wt, jiffies+2*HZ);
1691 /* the thread will call checkmode() later */
1692 }
1693 }
1694 }
1695 return 0;
1696}
1697
1698
1699static struct i2c_driver driver = {
1700 .owner = THIS_MODULE,
1701 .name = "generic i2c audio driver",
1702 .id = I2C_DRIVERID_TVAUDIO,
1703 .flags = I2C_DF_NOTIFY,
1704 .attach_adapter = chip_probe,
1705 .detach_client = chip_detach,
1706 .command = chip_command,
1707};
1708
1709static struct i2c_client client_template =
1710{
1711 I2C_DEVNAME("(unset)"),
1712 .flags = I2C_CLIENT_ALLOW_USE,
1713 .driver = &driver,
1714};
1715
1716static int __init audiochip_init_module(void)
1717{
1718 struct CHIPDESC *desc;
1719 printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux driver\n");
1720 printk(KERN_INFO "tvaudio: known chips: ");
1721 for (desc = chiplist; desc->name != NULL; desc++)
1722 printk("%s%s", (desc == chiplist) ? "" : ",",desc->name);
1723 printk("\n");
1724
1725 return i2c_add_driver(&driver);
1726}
1727
1728static void __exit audiochip_cleanup_module(void)
1729{
1730 i2c_del_driver(&driver);
1731}
1732
1733module_init(audiochip_init_module);
1734module_exit(audiochip_cleanup_module);
1735
1736/*
1737 * Local variables:
1738 * c-basic-offset: 8
1739 * End:
1740 */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-04 21:22:16 -0500