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Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[wrt350n-kernel.git] / drivers / media / video / msp3400-driver.c
blob7a11f3159e32b755a3a435b6872590b35f0dc845
1 /*
2 * Programming the mspx4xx sound processor family
3 *
4 * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
5 *
6 * what works and what doesn't:
7 *
8 * AM-Mono
9 * Support for Hauppauge cards added (decoding handled by tuner) added by
10 * Frederic Crozat <fcrozat@mail.dotcom.fr>
11 *
12 * FM-Mono
13 * should work. The stereo modes are backward compatible to FM-mono,
14 * therefore FM-Mono should be allways available.
15 *
16 * FM-Stereo (B/G, used in germany)
17 * should work, with autodetect
18 *
19 * FM-Stereo (satellite)
20 * should work, no autodetect (i.e. default is mono, but you can
21 * switch to stereo -- untested)
22 *
23 * NICAM (B/G, L , used in UK, Scandinavia, Spain and France)
24 * should work, with autodetect. Support for NICAM was added by
25 * Pekka Pietikainen <pp@netppl.fi>
26 *
27 * TODO:
28 * - better SAT support
29 *
30 * 980623 Thomas Sailer (sailer@ife.ee.ethz.ch)
31 * using soundcore instead of OSS
32 *
33 * This program is free software; you can redistribute it and/or
34 * modify it under the terms of the GNU General Public License
35 * as published by the Free Software Foundation; either version 2
36 * of the License, or (at your option) any later version.
37 *
38 * This program is distributed in the hope that it will be useful,
39 * but WITHOUT ANY WARRANTY; without even the implied warranty of
40 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
41 * GNU General Public License for more details.
42 *
43 * You should have received a copy of the GNU General Public License
44 * along with this program; if not, write to the Free Software
45 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
46 * 02110-1301, USA.
47 */
48
49
50 #include <linux/kernel.h>
51 #include <linux/module.h>
52 #include <linux/slab.h>
53 #include <linux/i2c.h>
54 #include <linux/videodev.h>
55 #include <linux/videodev2.h>
56 #include <media/v4l2-common.h>
57 #include <media/v4l2-i2c-drv-legacy.h>
58 #include <media/tvaudio.h>
59 #include <media/msp3400.h>
60 #include <linux/kthread.h>
61 #include <linux/freezer.h>
62 #include "msp3400-driver.h"
63
64 /* ---------------------------------------------------------------------- */
65
66 MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
67 MODULE_AUTHOR("Gerd Knorr");
68 MODULE_LICENSE("GPL");
69
70 /* module parameters */
71 static int opmode = OPMODE_AUTO;
72 int msp_debug; /* msp_debug output */
73 int msp_once; /* no continous stereo monitoring */
74 int msp_amsound; /* hard-wire AM sound at 6.5 Hz (france),
75 the autoscan seems work well only with FM... */
76 int msp_standard = 1; /* Override auto detect of audio msp_standard,
77 if needed. */
78 int msp_dolby;
79
80 int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual
81 (msp34xxg only) 0x00a0-0x03c0 */
82
83 /* read-only */
84 module_param(opmode, int, 0444);
85
86 /* read-write */
87 module_param_named(once, msp_once, bool, 0644);
88 module_param_named(debug, msp_debug, int, 0644);
89 module_param_named(stereo_threshold, msp_stereo_thresh, int, 0644);
90 module_param_named(standard, msp_standard, int, 0644);
91 module_param_named(amsound, msp_amsound, bool, 0644);
92 module_param_named(dolby, msp_dolby, bool, 0644);
93
94 MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
95 MODULE_PARM_DESC(once, "No continuous stereo monitoring");
96 MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
97 MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
98 MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
99 MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
100 MODULE_PARM_DESC(dolby, "Activates Dolby processsing");
101
102 /* ---------------------------------------------------------------------- */
103
104 /* control subaddress */
105 #define I2C_MSP_CONTROL 0x00
106 /* demodulator unit subaddress */
107 #define I2C_MSP_DEM 0x10
108 /* DSP unit subaddress */
109 #define I2C_MSP_DSP 0x12
110
111 /* Addresses to scan */
112 static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END };
113 I2C_CLIENT_INSMOD;
114
115 /* ----------------------------------------------------------------------- */
116 /* functions for talking to the MSP3400C Sound processor */
117
118 int msp_reset(struct i2c_client *client)
119 {
120 /* reset and read revision code */
121 static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
122 static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 };
123 static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e };
124 u8 read[2];
125 struct i2c_msg reset[2] = {
126 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
127 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on },
128 };
129 struct i2c_msg test[2] = {
130 { client->addr, 0, 3, write },
131 { client->addr, I2C_M_RD, 2, read },
132 };
133
134 v4l_dbg(3, msp_debug, client, "msp_reset\n");
135 if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
136 i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
137 i2c_transfer(client->adapter, test, 2) != 2) {
138 v4l_err(client, "chip reset failed\n");
139 return -1;
140 }
141 return 0;
142 }
143
144 static int msp_read(struct i2c_client *client, int dev, int addr)
145 {
146 int err, retval;
147 u8 write[3];
148 u8 read[2];
149 struct i2c_msg msgs[2] = {
150 { client->addr, 0, 3, write },
151 { client->addr, I2C_M_RD, 2, read }
152 };
153
154 write[0] = dev + 1;
155 write[1] = addr >> 8;
156 write[2] = addr & 0xff;
157
158 for (err = 0; err < 3; err++) {
159 if (i2c_transfer(client->adapter, msgs, 2) == 2)
160 break;
161 v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
162 dev, addr);
163 schedule_timeout_interruptible(msecs_to_jiffies(10));
164 }
165 if (err == 3) {
166 v4l_warn(client, "resetting chip, sound will go off.\n");
167 msp_reset(client);
168 return -1;
169 }
170 retval = read[0] << 8 | read[1];
171 v4l_dbg(3, msp_debug, client, "msp_read(0x%x, 0x%x): 0x%x\n",
172 dev, addr, retval);
173 return retval;
174 }
175
176 int msp_read_dem(struct i2c_client *client, int addr)
177 {
178 return msp_read(client, I2C_MSP_DEM, addr);
179 }
180
181 int msp_read_dsp(struct i2c_client *client, int addr)
182 {
183 return msp_read(client, I2C_MSP_DSP, addr);
184 }
185
186 static int msp_write(struct i2c_client *client, int dev, int addr, int val)
187 {
188 int err;
189 u8 buffer[5];
190
191 buffer[0] = dev;
192 buffer[1] = addr >> 8;
193 buffer[2] = addr & 0xff;
194 buffer[3] = val >> 8;
195 buffer[4] = val & 0xff;
196
197 v4l_dbg(3, msp_debug, client, "msp_write(0x%x, 0x%x, 0x%x)\n",
198 dev, addr, val);
199 for (err = 0; err < 3; err++) {
200 if (i2c_master_send(client, buffer, 5) == 5)
201 break;
202 v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
203 dev, addr);
204 schedule_timeout_interruptible(msecs_to_jiffies(10));
205 }
206 if (err == 3) {
207 v4l_warn(client, "resetting chip, sound will go off.\n");
208 msp_reset(client);
209 return -1;
210 }
211 return 0;
212 }
213
214 int msp_write_dem(struct i2c_client *client, int addr, int val)
215 {
216 return msp_write(client, I2C_MSP_DEM, addr, val);
217 }
218
219 int msp_write_dsp(struct i2c_client *client, int addr, int val)
220 {
221 return msp_write(client, I2C_MSP_DSP, addr, val);
222 }
223
224 /* ----------------------------------------------------------------------- *
225 * bits 9 8 5 - SCART DSP input Select:
226 * 0 0 0 - SCART 1 to DSP input (reset position)
227 * 0 1 0 - MONO to DSP input
228 * 1 0 0 - SCART 2 to DSP input
229 * 1 1 1 - Mute DSP input
230 *
231 * bits 11 10 6 - SCART 1 Output Select:
232 * 0 0 0 - undefined (reset position)
233 * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
234 * 1 0 0 - MONO input to SCART 1 Output
235 * 1 1 0 - SCART 1 DA to SCART 1 Output
236 * 0 0 1 - SCART 2 DA to SCART 1 Output
237 * 0 1 1 - SCART 1 Input to SCART 1 Output
238 * 1 1 1 - Mute SCART 1 Output
239 *
240 * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART):
241 * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position)
242 * 0 1 0 - SCART 1 Input to SCART 2 Output
243 * 1 0 0 - MONO input to SCART 2 Output
244 * 0 0 1 - SCART 2 DA to SCART 2 Output
245 * 0 1 1 - SCART 2 Input to SCART 2 Output
246 * 1 1 0 - Mute SCART 2 Output
247 *
248 * Bits 4 to 0 should be zero.
249 * ----------------------------------------------------------------------- */
250
251 static int scarts[3][9] = {
252 /* MASK IN1 IN2 IN3 IN4 IN1_DA IN2_DA MONO MUTE */
253 /* SCART DSP Input select */
254 { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1, -1, 0x0100, 0x0320 },
255 /* SCART1 Output select */
256 { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 },
257 /* SCART2 Output select */
258 { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 },
259 };
260
261 static char *scart_names[] = {
262 "in1", "in2", "in3", "in4", "in1 da", "in2 da", "mono", "mute"
263 };
264
265 void msp_set_scart(struct i2c_client *client, int in, int out)
266 {
267 struct msp_state *state = i2c_get_clientdata(client);
268
269 state->in_scart = in;
270
271 if (in >= 0 && in <= 7 && out >= 0 && out <= 2) {
272 if (-1 == scarts[out][in + 1])
273 return;
274
275 state->acb &= ~scarts[out][0];
276 state->acb |= scarts[out][in + 1];
277 } else
278 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
279
280 v4l_dbg(1, msp_debug, client, "scart switch: %s => %d (ACB=0x%04x)\n",
281 scart_names[in], out, state->acb);
282 msp_write_dsp(client, 0x13, state->acb);
283
284 /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
285 if (state->has_i2s_conf)
286 msp_write_dem(client, 0x40, state->i2s_mode);
287 }
288
289 void msp_set_audio(struct i2c_client *client)
290 {
291 struct msp_state *state = i2c_get_clientdata(client);
292 int bal = 0, bass, treble, loudness;
293 int val = 0;
294 int reallymuted = state->muted | state->scan_in_progress;
295
296 if (!reallymuted)
297 val = (state->volume * 0x7f / 65535) << 8;
298
299 v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n",
300 state->muted ? "on" : "off",
301 state->scan_in_progress ? "yes" : "no",
302 state->volume);
303
304 msp_write_dsp(client, 0x0000, val);
305 msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1));
306 if (state->has_scart2_out_volume)
307 msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1));
308 if (state->has_headphones)
309 msp_write_dsp(client, 0x0006, val);
310 if (!state->has_sound_processing)
311 return;
312
313 if (val)
314 bal = (u8)((state->balance / 256) - 128);
315 bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
316 treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
317 loudness = state->loudness ? ((5 * 4) << 8) : 0;
318
319 v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
320 state->balance, state->bass, state->treble, state->loudness);
321
322 msp_write_dsp(client, 0x0001, bal << 8);
323 msp_write_dsp(client, 0x0002, bass);
324 msp_write_dsp(client, 0x0003, treble);
325 msp_write_dsp(client, 0x0004, loudness);
326 if (!state->has_headphones)
327 return;
328 msp_write_dsp(client, 0x0030, bal << 8);
329 msp_write_dsp(client, 0x0031, bass);
330 msp_write_dsp(client, 0x0032, treble);
331 msp_write_dsp(client, 0x0033, loudness);
332 }
333
334 /* ------------------------------------------------------------------------ */
335
336
337 static void msp_wake_thread(struct i2c_client *client)
338 {
339 struct msp_state *state = i2c_get_clientdata(client);
340
341 if (NULL == state->kthread)
342 return;
343 state->watch_stereo = 0;
344 state->restart = 1;
345 wake_up_interruptible(&state->wq);
346 }
347
348 int msp_sleep(struct msp_state *state, int timeout)
349 {
350 DECLARE_WAITQUEUE(wait, current);
351
352 add_wait_queue(&state->wq, &wait);
353 if (!kthread_should_stop()) {
354 if (timeout < 0) {
355 set_current_state(TASK_INTERRUPTIBLE);
356 schedule();
357 } else {
358 schedule_timeout_interruptible
359 (msecs_to_jiffies(timeout));
360 }
361 }
362
363 remove_wait_queue(&state->wq, &wait);
364 try_to_freeze();
365 return state->restart;
366 }
367
368 /* ------------------------------------------------------------------------ */
369 #ifdef CONFIG_VIDEO_V4L1
370 static int msp_mode_v4l2_to_v4l1(int rxsubchans, int audmode)
371 {
372 if (rxsubchans == V4L2_TUNER_SUB_MONO)
373 return VIDEO_SOUND_MONO;
374 if (rxsubchans == V4L2_TUNER_SUB_STEREO)
375 return VIDEO_SOUND_STEREO;
376 if (audmode == V4L2_TUNER_MODE_LANG2)
377 return VIDEO_SOUND_LANG2;
378 return VIDEO_SOUND_LANG1;
379 }
380
381 static int msp_mode_v4l1_to_v4l2(int mode)
382 {
383 if (mode & VIDEO_SOUND_STEREO)
384 return V4L2_TUNER_MODE_STEREO;
385 if (mode & VIDEO_SOUND_LANG2)
386 return V4L2_TUNER_MODE_LANG2;
387 if (mode & VIDEO_SOUND_LANG1)
388 return V4L2_TUNER_MODE_LANG1;
389 return V4L2_TUNER_MODE_MONO;
390 }
391 #endif
392
393 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
394 {
395 struct msp_state *state = i2c_get_clientdata(client);
396
397 switch (ctrl->id) {
398 case V4L2_CID_AUDIO_VOLUME:
399 ctrl->value = state->volume;
400 break;
401
402 case V4L2_CID_AUDIO_MUTE:
403 ctrl->value = state->muted;
404 break;
405
406 case V4L2_CID_AUDIO_BALANCE:
407 if (!state->has_sound_processing)
408 return -EINVAL;
409 ctrl->value = state->balance;
410 break;
411
412 case V4L2_CID_AUDIO_BASS:
413 if (!state->has_sound_processing)
414 return -EINVAL;
415 ctrl->value = state->bass;
416 break;
417
418 case V4L2_CID_AUDIO_TREBLE:
419 if (!state->has_sound_processing)
420 return -EINVAL;
421 ctrl->value = state->treble;
422 break;
423
424 case V4L2_CID_AUDIO_LOUDNESS:
425 if (!state->has_sound_processing)
426 return -EINVAL;
427 ctrl->value = state->loudness;
428 break;
429
430 default:
431 return -EINVAL;
432 }
433 return 0;
434 }
435
436 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
437 {
438 struct msp_state *state = i2c_get_clientdata(client);
439
440 switch (ctrl->id) {
441 case V4L2_CID_AUDIO_VOLUME:
442 state->volume = ctrl->value;
443 if (state->volume == 0)
444 state->balance = 32768;
445 break;
446
447 case V4L2_CID_AUDIO_MUTE:
448 if (ctrl->value < 0 || ctrl->value >= 2)
449 return -ERANGE;
450 state->muted = ctrl->value;
451 break;
452
453 case V4L2_CID_AUDIO_BASS:
454 if (!state->has_sound_processing)
455 return -EINVAL;
456 state->bass = ctrl->value;
457 break;
458
459 case V4L2_CID_AUDIO_TREBLE:
460 if (!state->has_sound_processing)
461 return -EINVAL;
462 state->treble = ctrl->value;
463 break;
464
465 case V4L2_CID_AUDIO_LOUDNESS:
466 if (!state->has_sound_processing)
467 return -EINVAL;
468 state->loudness = ctrl->value;
469 break;
470
471 case V4L2_CID_AUDIO_BALANCE:
472 if (!state->has_sound_processing)
473 return -EINVAL;
474 state->balance = ctrl->value;
475 break;
476
477 default:
478 return -EINVAL;
479 }
480 msp_set_audio(client);
481 return 0;
482 }
483
484 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
485 {
486 struct msp_state *state = i2c_get_clientdata(client);
487
488 if (msp_debug >= 2)
489 v4l_i2c_print_ioctl(client, cmd);
490
491 switch (cmd) {
492 case AUDC_SET_RADIO:
493 if (state->radio)
494 return 0;
495 state->radio = 1;
496 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
497 state->watch_stereo = 0;
498 switch (state->opmode) {
499 case OPMODE_MANUAL:
500 /* set msp3400 to FM radio mode */
501 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
502 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
503 MSP_CARRIER(10.7));
504 msp_set_audio(client);
505 break;
506 case OPMODE_AUTODETECT:
507 case OPMODE_AUTOSELECT:
508 /* the thread will do for us */
509 msp_wake_thread(client);
510 break;
511 }
512 break;
513
514 /* --- v4l ioctls --- */
515 /* take care: bttv does userspace copying, we'll get a
516 kernel pointer here... */
517 #ifdef CONFIG_VIDEO_V4L1
518 case VIDIOCGAUDIO:
519 {
520 struct video_audio *va = arg;
521
522 va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE;
523 if (state->has_sound_processing)
524 va->flags |= VIDEO_AUDIO_BALANCE |
525 VIDEO_AUDIO_BASS |
526 VIDEO_AUDIO_TREBLE;
527 if (state->muted)
528 va->flags |= VIDEO_AUDIO_MUTE;
529 va->volume = state->volume;
530 va->balance = state->volume ? state->balance : 32768;
531 va->bass = state->bass;
532 va->treble = state->treble;
533
534 if (state->radio)
535 break;
536 if (state->opmode == OPMODE_AUTOSELECT)
537 msp_detect_stereo(client);
538 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans, state->audmode);
539 break;
540 }
541
542 case VIDIOCSAUDIO:
543 {
544 struct video_audio *va = arg;
545
546 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
547 state->volume = va->volume;
548 state->balance = va->balance;
549 state->bass = va->bass;
550 state->treble = va->treble;
551 msp_set_audio(client);
552
553 if (va->mode != 0 && state->radio == 0 &&
554 state->audmode != msp_mode_v4l1_to_v4l2(va->mode)) {
555 state->audmode = msp_mode_v4l1_to_v4l2(va->mode);
556 msp_set_audmode(client);
557 }
558 break;
559 }
560
561 case VIDIOCSCHAN:
562 {
563 struct video_channel *vc = arg;
564 int update = 0;
565 v4l2_std_id std;
566
567 if (state->radio)
568 update = 1;
569 state->radio = 0;
570 if (vc->norm == VIDEO_MODE_PAL)
571 std = V4L2_STD_PAL;
572 else if (vc->norm == VIDEO_MODE_SECAM)
573 std = V4L2_STD_SECAM;
574 else
575 std = V4L2_STD_NTSC;
576 if (std != state->v4l2_std) {
577 state->v4l2_std = std;
578 update = 1;
579 }
580 if (update)
581 msp_wake_thread(client);
582 break;
583 }
584
585 case VIDIOCSFREQ:
586 {
587 /* new channel -- kick audio carrier scan */
588 msp_wake_thread(client);
589 break;
590 }
591 #endif
592 case VIDIOC_S_FREQUENCY:
593 {
594 /* new channel -- kick audio carrier scan */
595 msp_wake_thread(client);
596 break;
597 }
598
599 /* --- v4l2 ioctls --- */
600 case VIDIOC_S_STD:
601 {
602 v4l2_std_id *id = arg;
603 int update = state->radio || state->v4l2_std != *id;
604
605 state->v4l2_std = *id;
606 state->radio = 0;
607 if (update)
608 msp_wake_thread(client);
609 return 0;
610 }
611
612 case VIDIOC_INT_G_AUDIO_ROUTING:
613 {
614 struct v4l2_routing *rt = arg;
615
616 *rt = state->routing;
617 break;
618 }
619
620 case VIDIOC_INT_S_AUDIO_ROUTING:
621 {
622 struct v4l2_routing *rt = arg;
623 int tuner = (rt->input >> 3) & 1;
624 int sc_in = rt->input & 0x7;
625 int sc1_out = rt->output & 0xf;
626 int sc2_out = (rt->output >> 4) & 0xf;
627 u16 val, reg;
628 int i;
629 int extern_input = 1;
630
631 if (state->routing.input == rt->input &&
632 state->routing.output == rt->output)
633 break;
634 state->routing = *rt;
635 /* check if the tuner input is used */
636 for (i = 0; i < 5; i++) {
637 if (((rt->input >> (4 + i * 4)) & 0xf) == 0)
638 extern_input = 0;
639 }
640 state->mode = extern_input ? MSP_MODE_EXTERN : MSP_MODE_AM_DETECT;
641 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
642 msp_set_scart(client, sc_in, 0);
643 msp_set_scart(client, sc1_out, 1);
644 msp_set_scart(client, sc2_out, 2);
645 msp_set_audmode(client);
646 reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb;
647 val = msp_read_dem(client, reg);
648 msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8));
649 /* wake thread when a new input is chosen */
650 msp_wake_thread(client);
651 break;
652 }
653
654 case VIDIOC_G_TUNER:
655 {
656 struct v4l2_tuner *vt = arg;
657
658 if (state->radio)
659 break;
660 if (state->opmode == OPMODE_AUTOSELECT)
661 msp_detect_stereo(client);
662 vt->audmode = state->audmode;
663 vt->rxsubchans = state->rxsubchans;
664 vt->capability |= V4L2_TUNER_CAP_STEREO |
665 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
666 break;
667 }
668
669 case VIDIOC_S_TUNER:
670 {
671 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
672
673 if (state->radio) /* TODO: add mono/stereo support for radio */
674 break;
675 if (state->audmode == vt->audmode)
676 break;
677 state->audmode = vt->audmode;
678 /* only set audmode */
679 msp_set_audmode(client);
680 break;
681 }
682
683 case VIDIOC_INT_I2S_CLOCK_FREQ:
684 {
685 u32 *a = (u32 *)arg;
686
687 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);
688
689 switch (*a) {
690 case 1024000:
691 state->i2s_mode = 0;
692 break;
693 case 2048000:
694 state->i2s_mode = 1;
695 break;
696 default:
697 return -EINVAL;
698 }
699 break;
700 }
701
702 case VIDIOC_QUERYCTRL:
703 {
704 struct v4l2_queryctrl *qc = arg;
705
706 switch (qc->id) {
707 case V4L2_CID_AUDIO_VOLUME:
708 case V4L2_CID_AUDIO_MUTE:
709 return v4l2_ctrl_query_fill_std(qc);
710 default:
711 break;
712 }
713 if (!state->has_sound_processing)
714 return -EINVAL;
715 switch (qc->id) {
716 case V4L2_CID_AUDIO_LOUDNESS:
717 case V4L2_CID_AUDIO_BALANCE:
718 case V4L2_CID_AUDIO_BASS:
719 case V4L2_CID_AUDIO_TREBLE:
720 return v4l2_ctrl_query_fill_std(qc);
721 default:
722 return -EINVAL;
723 }
724 }
725
726 case VIDIOC_G_CTRL:
727 return msp_get_ctrl(client, arg);
728
729 case VIDIOC_S_CTRL:
730 return msp_set_ctrl(client, arg);
731
732 case VIDIOC_LOG_STATUS:
733 {
734 const char *p;
735
736 if (state->opmode == OPMODE_AUTOSELECT)
737 msp_detect_stereo(client);
738 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
739 client->name, state->rev1, state->rev2);
740 v4l_info(client, "Audio: volume %d%s\n",
741 state->volume, state->muted ? " (muted)" : "");
742 if (state->has_sound_processing) {
743 v4l_info(client, "Audio: balance %d bass %d treble %d loudness %s\n",
744 state->balance, state->bass,
745 state->treble,
746 state->loudness ? "on" : "off");
747 }
748 switch (state->mode) {
749 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
750 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
751 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono/stereo"; break;
752 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
753 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
754 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
755 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
756 case MSP_MODE_BTSC: p = "BTSC"; break;
757 case MSP_MODE_EXTERN: p = "External input"; break;
758 default: p = "unknown"; break;
759 }
760 if (state->mode == MSP_MODE_EXTERN) {
761 v4l_info(client, "Mode: %s\n", p);
762 } else if (state->opmode == OPMODE_MANUAL) {
763 v4l_info(client, "Mode: %s (%s%s)\n", p,
764 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
765 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
766 } else {
767 if (state->opmode == OPMODE_AUTODETECT)
768 v4l_info(client, "Mode: %s\n", p);
769 v4l_info(client, "Standard: %s (%s%s)\n",
770 msp_standard_std_name(state->std),
771 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
772 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
773 }
774 v4l_info(client, "Audmode: 0x%04x\n", state->audmode);
775 v4l_info(client, "Routing: 0x%08x (input) 0x%08x (output)\n",
776 state->routing.input, state->routing.output);
777 v4l_info(client, "ACB: 0x%04x\n", state->acb);
778 break;
779 }
780
781 case VIDIOC_G_CHIP_IDENT:
782 return v4l2_chip_ident_i2c_client(client, arg, state->ident,
783 (state->rev1 << 16) | state->rev2);
784
785 default:
786 /* unknown */
787 return -EINVAL;
788 }
789 return 0;
790 }
791
792 static int msp_suspend(struct i2c_client *client, pm_message_t state)
793 {
794 v4l_dbg(1, msp_debug, client, "suspend\n");
795 msp_reset(client);
796 return 0;
797 }
798
799 static int msp_resume(struct i2c_client *client)
800 {
801 v4l_dbg(1, msp_debug, client, "resume\n");
802 msp_wake_thread(client);
803 return 0;
804 }
805
806 /* ----------------------------------------------------------------------- */
807
808 static int msp_probe(struct i2c_client *client)
809 {
810 struct msp_state *state;
811 int (*thread_func)(void *data) = NULL;
812 int msp_hard;
813 int msp_family;
814 int msp_revision;
815 int msp_product, msp_prod_hi, msp_prod_lo;
816 int msp_rom;
817
818 snprintf(client->name, sizeof(client->name) - 1, "msp3400");
819
820 if (msp_reset(client) == -1) {
821 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
822 return -ENODEV;
823 }
824
825 state = kzalloc(sizeof(*state), GFP_KERNEL);
826 if (!state)
827 return -ENOMEM;
828
829 i2c_set_clientdata(client, state);
830
831 state->v4l2_std = V4L2_STD_NTSC;
832 state->audmode = V4L2_TUNER_MODE_STEREO;
833 state->volume = 58880; /* 0db gain */
834 state->balance = 32768; /* 0db gain */
835 state->bass = 32768;
836 state->treble = 32768;
837 state->loudness = 0;
838 state->input = -1;
839 state->muted = 0;
840 state->i2s_mode = 0;
841 init_waitqueue_head(&state->wq);
842 /* These are the reset input/output positions */
843 state->routing.input = MSP_INPUT_DEFAULT;
844 state->routing.output = MSP_OUTPUT_DEFAULT;
845
846 state->rev1 = msp_read_dsp(client, 0x1e);
847 if (state->rev1 != -1)
848 state->rev2 = msp_read_dsp(client, 0x1f);
849 v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n",
850 state->rev1, state->rev2);
851 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
852 v4l_dbg(1, msp_debug, client,
853 "not an msp3400 (cannot read chip version)\n");
854 kfree(state);
855 return -ENODEV;
856 }
857
858 msp_set_audio(client);
859
860 msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
861 msp_product = (state->rev2 >> 8) & 0xff;
862 msp_prod_hi = msp_product / 10;
863 msp_prod_lo = msp_product % 10;
864 msp_revision = (state->rev1 & 0x0f) + '@';
865 msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
866 msp_rom = state->rev2 & 0x1f;
867 snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
868 msp_family, msp_product,
869 msp_revision, msp_hard, msp_rom);
870 /* Rev B=2, C=3, D=4, G=7 */
871 state->ident = msp_family * 10000 + 4000 + msp_product * 10 +
872 msp_revision - '@';
873
874 /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
875 state->has_nicam =
876 msp_prod_hi == 1 || msp_prod_hi == 5;
877 /* Has radio support: was added with revision G */
878 state->has_radio =
879 msp_revision >= 'G';
880 /* Has headphones output: not for stripped down products */
881 state->has_headphones =
882 msp_prod_lo < 5;
883 /* Has scart2 input: not in stripped down products of the '3' family */
884 state->has_scart2 =
885 msp_family >= 4 || msp_prod_lo < 7;
886 /* Has scart3 input: not in stripped down products of the '3' family */
887 state->has_scart3 =
888 msp_family >= 4 || msp_prod_lo < 5;
889 /* Has scart4 input: not in pre D revisions, not in stripped D revs */
890 state->has_scart4 =
891 msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
892 /* Has scart2 output: not in stripped down products of
893 * the '3' family */
894 state->has_scart2_out =
895 msp_family >= 4 || msp_prod_lo < 5;
896 /* Has scart2 a volume control? Not in pre-D revisions. */
897 state->has_scart2_out_volume =
898 msp_revision > 'C' && state->has_scart2_out;
899 /* Has a configurable i2s out? */
900 state->has_i2s_conf =
901 msp_revision >= 'G' && msp_prod_lo < 7;
902 /* Has subwoofer output: not in pre-D revs and not in stripped down
903 * products */
904 state->has_subwoofer =
905 msp_revision >= 'D' && msp_prod_lo < 5;
906 /* Has soundprocessing (bass/treble/balance/loudness/equalizer):
907 * not in stripped down products */
908 state->has_sound_processing =
909 msp_prod_lo < 7;
910 /* Has Virtual Dolby Surround: only in msp34x1 */
911 state->has_virtual_dolby_surround =
912 msp_revision == 'G' && msp_prod_lo == 1;
913 /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
914 state->has_dolby_pro_logic =
915 msp_revision == 'G' && msp_prod_lo == 2;
916 /* The msp343xG supports BTSC only and cannot do Automatic Standard
917 * Detection. */
918 state->force_btsc =
919 msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3;
920
921 state->opmode = opmode;
922 if (state->opmode == OPMODE_AUTO) {
923 /* MSP revision G and up have both autodetect and autoselect */
924 if (msp_revision >= 'G')
925 state->opmode = OPMODE_AUTOSELECT;
926 /* MSP revision D and up have autodetect */
927 else if (msp_revision >= 'D')
928 state->opmode = OPMODE_AUTODETECT;
929 else
930 state->opmode = OPMODE_MANUAL;
931 }
932
933 /* hello world :-) */
934 v4l_info(client, "%s found @ 0x%x (%s)\n", client->name,
935 client->addr << 1, client->adapter->name);
936 v4l_info(client, "%s ", client->name);
937 if (state->has_nicam && state->has_radio)
938 printk(KERN_CONT "supports nicam and radio, ");
939 else if (state->has_nicam)
940 printk(KERN_CONT "supports nicam, ");
941 else if (state->has_radio)
942 printk(KERN_CONT "supports radio, ");
943 printk(KERN_CONT "mode is ");
944
945 /* version-specific initialization */
946 switch (state->opmode) {
947 case OPMODE_MANUAL:
948 printk(KERN_CONT "manual");
949 thread_func = msp3400c_thread;
950 break;
951 case OPMODE_AUTODETECT:
952 printk(KERN_CONT "autodetect");
953 thread_func = msp3410d_thread;
954 break;
955 case OPMODE_AUTOSELECT:
956 printk(KERN_CONT "autodetect and autoselect");
957 thread_func = msp34xxg_thread;
958 break;
959 }
960 printk(KERN_CONT "\n");
961
962 /* startup control thread if needed */
963 if (thread_func) {
964 state->kthread = kthread_run(thread_func, client, "msp34xx");
965
966 if (IS_ERR(state->kthread))
967 v4l_warn(client, "kernel_thread() failed\n");
968 msp_wake_thread(client);
969 }
970 return 0;
971 }
972
973 static int msp_remove(struct i2c_client *client)
974 {
975 struct msp_state *state = i2c_get_clientdata(client);
976
977 /* shutdown control thread */
978 if (state->kthread) {
979 state->restart = 1;
980 kthread_stop(state->kthread);
981 }
982 msp_reset(client);
983
984 kfree(state);
985 return 0;
986 }
987
988 /* ----------------------------------------------------------------------- */
989
990 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
991 .name = "msp3400",
992 .driverid = I2C_DRIVERID_MSP3400,
993 .command = msp_command,
994 .probe = msp_probe,
995 .remove = msp_remove,
996 .suspend = msp_suspend,
997 .resume = msp_resume,
998 };
999
1000
1001 /*
1002 * Overrides for Emacs so that we follow Linus's tabbing style.
1003 * ---------------------------------------------------------------------------
1004 * Local variables:
1005 * c-basic-offset: 8
1006 * End:
1007 */
WRT350N Kernel Patches