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V4L/DVB (8430): videodev: move some functions from v4l2-dev.h to v4l2-common.h or...
[linux-2.6/kvm.git] / drivers / media / video / msp3400-driver.c
blob780531b587a430e7e4dbf3502e768fd86e0a92f7
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-ioctl.h>
58 #include <media/v4l2-i2c-drv-legacy.h>
59 #include <media/tvaudio.h>
60 #include <media/msp3400.h>
61 #include <linux/kthread.h>
62 #include <linux/freezer.h>
63 #include "msp3400-driver.h"
64
65 /* ---------------------------------------------------------------------- */
66
67 MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
68 MODULE_AUTHOR("Gerd Knorr");
69 MODULE_LICENSE("GPL");
70
71 /* module parameters */
72 static int opmode = OPMODE_AUTO;
73 int msp_debug; /* msp_debug output */
74 int msp_once; /* no continous stereo monitoring */
75 int msp_amsound; /* hard-wire AM sound at 6.5 Hz (france),
76 the autoscan seems work well only with FM... */
77 int msp_standard = 1; /* Override auto detect of audio msp_standard,
78 if needed. */
79 int msp_dolby;
80
81 int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual
82 (msp34xxg only) 0x00a0-0x03c0 */
83
84 /* read-only */
85 module_param(opmode, int, 0444);
86
87 /* read-write */
88 module_param_named(once, msp_once, bool, 0644);
89 module_param_named(debug, msp_debug, int, 0644);
90 module_param_named(stereo_threshold, msp_stereo_thresh, int, 0644);
91 module_param_named(standard, msp_standard, int, 0644);
92 module_param_named(amsound, msp_amsound, bool, 0644);
93 module_param_named(dolby, msp_dolby, bool, 0644);
94
95 MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
96 MODULE_PARM_DESC(once, "No continuous stereo monitoring");
97 MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
98 MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
99 MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
100 MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
101 MODULE_PARM_DESC(dolby, "Activates Dolby processsing");
102
103 /* ---------------------------------------------------------------------- */
104
105 /* control subaddress */
106 #define I2C_MSP_CONTROL 0x00
107 /* demodulator unit subaddress */
108 #define I2C_MSP_DEM 0x10
109 /* DSP unit subaddress */
110 #define I2C_MSP_DSP 0x12
111
112 /* Addresses to scan */
113 static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END };
114
115 I2C_CLIENT_INSMOD;
116
117 /* ----------------------------------------------------------------------- */
118 /* functions for talking to the MSP3400C Sound processor */
119
120 int msp_reset(struct i2c_client *client)
121 {
122 /* reset and read revision code */
123 static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
124 static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 };
125 static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e };
126 u8 read[2];
127 struct i2c_msg reset[2] = {
128 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
129 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on },
130 };
131 struct i2c_msg test[2] = {
132 { client->addr, 0, 3, write },
133 { client->addr, I2C_M_RD, 2, read },
134 };
135
136 v4l_dbg(3, msp_debug, client, "msp_reset\n");
137 if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
138 i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
139 i2c_transfer(client->adapter, test, 2) != 2) {
140 v4l_err(client, "chip reset failed\n");
141 return -1;
142 }
143 return 0;
144 }
145
146 static int msp_read(struct i2c_client *client, int dev, int addr)
147 {
148 int err, retval;
149 u8 write[3];
150 u8 read[2];
151 struct i2c_msg msgs[2] = {
152 { client->addr, 0, 3, write },
153 { client->addr, I2C_M_RD, 2, read }
154 };
155
156 write[0] = dev + 1;
157 write[1] = addr >> 8;
158 write[2] = addr & 0xff;
159
160 for (err = 0; err < 3; err++) {
161 if (i2c_transfer(client->adapter, msgs, 2) == 2)
162 break;
163 v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
164 dev, addr);
165 schedule_timeout_interruptible(msecs_to_jiffies(10));
166 }
167 if (err == 3) {
168 v4l_warn(client, "resetting chip, sound will go off.\n");
169 msp_reset(client);
170 return -1;
171 }
172 retval = read[0] << 8 | read[1];
173 v4l_dbg(3, msp_debug, client, "msp_read(0x%x, 0x%x): 0x%x\n",
174 dev, addr, retval);
175 return retval;
176 }
177
178 int msp_read_dem(struct i2c_client *client, int addr)
179 {
180 return msp_read(client, I2C_MSP_DEM, addr);
181 }
182
183 int msp_read_dsp(struct i2c_client *client, int addr)
184 {
185 return msp_read(client, I2C_MSP_DSP, addr);
186 }
187
188 static int msp_write(struct i2c_client *client, int dev, int addr, int val)
189 {
190 int err;
191 u8 buffer[5];
192
193 buffer[0] = dev;
194 buffer[1] = addr >> 8;
195 buffer[2] = addr & 0xff;
196 buffer[3] = val >> 8;
197 buffer[4] = val & 0xff;
198
199 v4l_dbg(3, msp_debug, client, "msp_write(0x%x, 0x%x, 0x%x)\n",
200 dev, addr, val);
201 for (err = 0; err < 3; err++) {
202 if (i2c_master_send(client, buffer, 5) == 5)
203 break;
204 v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
205 dev, addr);
206 schedule_timeout_interruptible(msecs_to_jiffies(10));
207 }
208 if (err == 3) {
209 v4l_warn(client, "resetting chip, sound will go off.\n");
210 msp_reset(client);
211 return -1;
212 }
213 return 0;
214 }
215
216 int msp_write_dem(struct i2c_client *client, int addr, int val)
217 {
218 return msp_write(client, I2C_MSP_DEM, addr, val);
219 }
220
221 int msp_write_dsp(struct i2c_client *client, int addr, int val)
222 {
223 return msp_write(client, I2C_MSP_DSP, addr, val);
224 }
225
226 /* ----------------------------------------------------------------------- *
227 * bits 9 8 5 - SCART DSP input Select:
228 * 0 0 0 - SCART 1 to DSP input (reset position)
229 * 0 1 0 - MONO to DSP input
230 * 1 0 0 - SCART 2 to DSP input
231 * 1 1 1 - Mute DSP input
232 *
233 * bits 11 10 6 - SCART 1 Output Select:
234 * 0 0 0 - undefined (reset position)
235 * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
236 * 1 0 0 - MONO input to SCART 1 Output
237 * 1 1 0 - SCART 1 DA to SCART 1 Output
238 * 0 0 1 - SCART 2 DA to SCART 1 Output
239 * 0 1 1 - SCART 1 Input to SCART 1 Output
240 * 1 1 1 - Mute SCART 1 Output
241 *
242 * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART):
243 * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position)
244 * 0 1 0 - SCART 1 Input to SCART 2 Output
245 * 1 0 0 - MONO input to SCART 2 Output
246 * 0 0 1 - SCART 2 DA to SCART 2 Output
247 * 0 1 1 - SCART 2 Input to SCART 2 Output
248 * 1 1 0 - Mute SCART 2 Output
249 *
250 * Bits 4 to 0 should be zero.
251 * ----------------------------------------------------------------------- */
252
253 static int scarts[3][9] = {
254 /* MASK IN1 IN2 IN3 IN4 IN1_DA IN2_DA MONO MUTE */
255 /* SCART DSP Input select */
256 { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1, -1, 0x0100, 0x0320 },
257 /* SCART1 Output select */
258 { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 },
259 /* SCART2 Output select */
260 { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 },
261 };
262
263 static char *scart_names[] = {
264 "in1", "in2", "in3", "in4", "in1 da", "in2 da", "mono", "mute"
265 };
266
267 void msp_set_scart(struct i2c_client *client, int in, int out)
268 {
269 struct msp_state *state = i2c_get_clientdata(client);
270
271 state->in_scart = in;
272
273 if (in >= 0 && in <= 7 && out >= 0 && out <= 2) {
274 if (-1 == scarts[out][in + 1])
275 return;
276
277 state->acb &= ~scarts[out][0];
278 state->acb |= scarts[out][in + 1];
279 } else
280 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
281
282 v4l_dbg(1, msp_debug, client, "scart switch: %s => %d (ACB=0x%04x)\n",
283 scart_names[in], out, state->acb);
284 msp_write_dsp(client, 0x13, state->acb);
285
286 /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
287 if (state->has_i2s_conf)
288 msp_write_dem(client, 0x40, state->i2s_mode);
289 }
290
291 void msp_set_audio(struct i2c_client *client)
292 {
293 struct msp_state *state = i2c_get_clientdata(client);
294 int bal = 0, bass, treble, loudness;
295 int val = 0;
296 int reallymuted = state->muted | state->scan_in_progress;
297
298 if (!reallymuted)
299 val = (state->volume * 0x7f / 65535) << 8;
300
301 v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n",
302 state->muted ? "on" : "off",
303 state->scan_in_progress ? "yes" : "no",
304 state->volume);
305
306 msp_write_dsp(client, 0x0000, val);
307 msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1));
308 if (state->has_scart2_out_volume)
309 msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1));
310 if (state->has_headphones)
311 msp_write_dsp(client, 0x0006, val);
312 if (!state->has_sound_processing)
313 return;
314
315 if (val)
316 bal = (u8)((state->balance / 256) - 128);
317 bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
318 treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
319 loudness = state->loudness ? ((5 * 4) << 8) : 0;
320
321 v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
322 state->balance, state->bass, state->treble, state->loudness);
323
324 msp_write_dsp(client, 0x0001, bal << 8);
325 msp_write_dsp(client, 0x0002, bass);
326 msp_write_dsp(client, 0x0003, treble);
327 msp_write_dsp(client, 0x0004, loudness);
328 if (!state->has_headphones)
329 return;
330 msp_write_dsp(client, 0x0030, bal << 8);
331 msp_write_dsp(client, 0x0031, bass);
332 msp_write_dsp(client, 0x0032, treble);
333 msp_write_dsp(client, 0x0033, loudness);
334 }
335
336 /* ------------------------------------------------------------------------ */
337
338 static void msp_wake_thread(struct i2c_client *client)
339 {
340 struct msp_state *state = i2c_get_clientdata(client);
341
342 if (NULL == state->kthread)
343 return;
344 state->watch_stereo = 0;
345 state->restart = 1;
346 wake_up_interruptible(&state->wq);
347 }
348
349 int msp_sleep(struct msp_state *state, int timeout)
350 {
351 DECLARE_WAITQUEUE(wait, current);
352
353 add_wait_queue(&state->wq, &wait);
354 if (!kthread_should_stop()) {
355 if (timeout < 0) {
356 set_current_state(TASK_INTERRUPTIBLE);
357 schedule();
358 } else {
359 schedule_timeout_interruptible
360 (msecs_to_jiffies(timeout));
361 }
362 }
363
364 remove_wait_queue(&state->wq, &wait);
365 try_to_freeze();
366 return state->restart;
367 }
368
369 /* ------------------------------------------------------------------------ */
370 #ifdef CONFIG_VIDEO_ALLOW_V4L1
371 static int msp_mode_v4l2_to_v4l1(int rxsubchans, int audmode)
372 {
373 if (rxsubchans == V4L2_TUNER_SUB_MONO)
374 return VIDEO_SOUND_MONO;
375 if (rxsubchans == V4L2_TUNER_SUB_STEREO)
376 return VIDEO_SOUND_STEREO;
377 if (audmode == V4L2_TUNER_MODE_LANG2)
378 return VIDEO_SOUND_LANG2;
379 return VIDEO_SOUND_LANG1;
380 }
381
382 static int msp_mode_v4l1_to_v4l2(int mode)
383 {
384 if (mode & VIDEO_SOUND_STEREO)
385 return V4L2_TUNER_MODE_STEREO;
386 if (mode & VIDEO_SOUND_LANG2)
387 return V4L2_TUNER_MODE_LANG2;
388 if (mode & VIDEO_SOUND_LANG1)
389 return V4L2_TUNER_MODE_LANG1;
390 return V4L2_TUNER_MODE_MONO;
391 }
392 #endif
393
394 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
395 {
396 struct msp_state *state = i2c_get_clientdata(client);
397
398 switch (ctrl->id) {
399 case V4L2_CID_AUDIO_VOLUME:
400 ctrl->value = state->volume;
401 break;
402
403 case V4L2_CID_AUDIO_MUTE:
404 ctrl->value = state->muted;
405 break;
406
407 case V4L2_CID_AUDIO_BALANCE:
408 if (!state->has_sound_processing)
409 return -EINVAL;
410 ctrl->value = state->balance;
411 break;
412
413 case V4L2_CID_AUDIO_BASS:
414 if (!state->has_sound_processing)
415 return -EINVAL;
416 ctrl->value = state->bass;
417 break;
418
419 case V4L2_CID_AUDIO_TREBLE:
420 if (!state->has_sound_processing)
421 return -EINVAL;
422 ctrl->value = state->treble;
423 break;
424
425 case V4L2_CID_AUDIO_LOUDNESS:
426 if (!state->has_sound_processing)
427 return -EINVAL;
428 ctrl->value = state->loudness;
429 break;
430
431 default:
432 return -EINVAL;
433 }
434 return 0;
435 }
436
437 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
438 {
439 struct msp_state *state = i2c_get_clientdata(client);
440
441 switch (ctrl->id) {
442 case V4L2_CID_AUDIO_VOLUME:
443 state->volume = ctrl->value;
444 if (state->volume == 0)
445 state->balance = 32768;
446 break;
447
448 case V4L2_CID_AUDIO_MUTE:
449 if (ctrl->value < 0 || ctrl->value >= 2)
450 return -ERANGE;
451 state->muted = ctrl->value;
452 break;
453
454 case V4L2_CID_AUDIO_BASS:
455 if (!state->has_sound_processing)
456 return -EINVAL;
457 state->bass = ctrl->value;
458 break;
459
460 case V4L2_CID_AUDIO_TREBLE:
461 if (!state->has_sound_processing)
462 return -EINVAL;
463 state->treble = ctrl->value;
464 break;
465
466 case V4L2_CID_AUDIO_LOUDNESS:
467 if (!state->has_sound_processing)
468 return -EINVAL;
469 state->loudness = ctrl->value;
470 break;
471
472 case V4L2_CID_AUDIO_BALANCE:
473 if (!state->has_sound_processing)
474 return -EINVAL;
475 state->balance = ctrl->value;
476 break;
477
478 default:
479 return -EINVAL;
480 }
481 msp_set_audio(client);
482 return 0;
483 }
484
485 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
486 {
487 struct msp_state *state = i2c_get_clientdata(client);
488
489 if (msp_debug >= 2)
490 v4l_i2c_print_ioctl(client, cmd);
491
492 switch (cmd) {
493 case AUDC_SET_RADIO:
494 if (state->radio)
495 return 0;
496 state->radio = 1;
497 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
498 state->watch_stereo = 0;
499 switch (state->opmode) {
500 case OPMODE_MANUAL:
501 /* set msp3400 to FM radio mode */
502 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
503 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
504 MSP_CARRIER(10.7));
505 msp_set_audio(client);
506 break;
507 case OPMODE_AUTODETECT:
508 case OPMODE_AUTOSELECT:
509 /* the thread will do for us */
510 msp_wake_thread(client);
511 break;
512 }
513 break;
514
515 /* --- v4l ioctls --- */
516 /* take care: bttv does userspace copying, we'll get a
517 kernel pointer here... */
518 #ifdef CONFIG_VIDEO_ALLOW_V4L1
519 case VIDIOCGAUDIO:
520 {
521 struct video_audio *va = arg;
522
523 va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE;
524 if (state->has_sound_processing)
525 va->flags |= VIDEO_AUDIO_BALANCE |
526 VIDEO_AUDIO_BASS |
527 VIDEO_AUDIO_TREBLE;
528 if (state->muted)
529 va->flags |= VIDEO_AUDIO_MUTE;
530 va->volume = state->volume;
531 va->balance = state->volume ? state->balance : 32768;
532 va->bass = state->bass;
533 va->treble = state->treble;
534
535 if (state->radio)
536 break;
537 if (state->opmode == OPMODE_AUTOSELECT)
538 msp_detect_stereo(client);
539 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans, state->audmode);
540 break;
541 }
542
543 case VIDIOCSAUDIO:
544 {
545 struct video_audio *va = arg;
546
547 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
548 state->volume = va->volume;
549 state->balance = va->balance;
550 state->bass = va->bass;
551 state->treble = va->treble;
552 msp_set_audio(client);
553
554 if (va->mode != 0 && state->radio == 0 &&
555 state->audmode != msp_mode_v4l1_to_v4l2(va->mode)) {
556 state->audmode = msp_mode_v4l1_to_v4l2(va->mode);
557 msp_set_audmode(client);
558 }
559 break;
560 }
561
562 case VIDIOCSCHAN:
563 {
564 struct video_channel *vc = arg;
565 int update = 0;
566 v4l2_std_id std;
567
568 if (state->radio)
569 update = 1;
570 state->radio = 0;
571 if (vc->norm == VIDEO_MODE_PAL)
572 std = V4L2_STD_PAL;
573 else if (vc->norm == VIDEO_MODE_SECAM)
574 std = V4L2_STD_SECAM;
575 else
576 std = V4L2_STD_NTSC;
577 if (std != state->v4l2_std) {
578 state->v4l2_std = std;
579 update = 1;
580 }
581 if (update)
582 msp_wake_thread(client);
583 break;
584 }
585
586 case VIDIOCSFREQ:
587 {
588 /* new channel -- kick audio carrier scan */
589 msp_wake_thread(client);
590 break;
591 }
592 #endif
593 case VIDIOC_S_FREQUENCY:
594 {
595 /* new channel -- kick audio carrier scan */
596 msp_wake_thread(client);
597 break;
598 }
599
600 /* --- v4l2 ioctls --- */
601 case VIDIOC_S_STD:
602 {
603 v4l2_std_id *id = arg;
604 int update = state->radio || state->v4l2_std != *id;
605
606 state->v4l2_std = *id;
607 state->radio = 0;
608 if (update)
609 msp_wake_thread(client);
610 return 0;
611 }
612
613 case VIDIOC_INT_G_AUDIO_ROUTING:
614 {
615 struct v4l2_routing *rt = arg;
616
617 *rt = state->routing;
618 break;
619 }
620
621 case VIDIOC_INT_S_AUDIO_ROUTING:
622 {
623 struct v4l2_routing *rt = arg;
624 int tuner = (rt->input >> 3) & 1;
625 int sc_in = rt->input & 0x7;
626 int sc1_out = rt->output & 0xf;
627 int sc2_out = (rt->output >> 4) & 0xf;
628 u16 val, reg;
629 int i;
630 int extern_input = 1;
631
632 if (state->routing.input == rt->input &&
633 state->routing.output == rt->output)
634 break;
635 state->routing = *rt;
636 /* check if the tuner input is used */
637 for (i = 0; i < 5; i++) {
638 if (((rt->input >> (4 + i * 4)) & 0xf) == 0)
639 extern_input = 0;
640 }
641 state->mode = extern_input ? MSP_MODE_EXTERN : MSP_MODE_AM_DETECT;
642 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
643 msp_set_scart(client, sc_in, 0);
644 msp_set_scart(client, sc1_out, 1);
645 msp_set_scart(client, sc2_out, 2);
646 msp_set_audmode(client);
647 reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb;
648 val = msp_read_dem(client, reg);
649 msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8));
650 /* wake thread when a new input is chosen */
651 msp_wake_thread(client);
652 break;
653 }
654
655 case VIDIOC_G_TUNER:
656 {
657 struct v4l2_tuner *vt = arg;
658
659 if (state->radio)
660 break;
661 if (state->opmode == OPMODE_AUTOSELECT)
662 msp_detect_stereo(client);
663 vt->audmode = state->audmode;
664 vt->rxsubchans = state->rxsubchans;
665 vt->capability |= V4L2_TUNER_CAP_STEREO |
666 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
667 break;
668 }
669
670 case VIDIOC_S_TUNER:
671 {
672 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
673
674 if (state->radio) /* TODO: add mono/stereo support for radio */
675 break;
676 if (state->audmode == vt->audmode)
677 break;
678 state->audmode = vt->audmode;
679 /* only set audmode */
680 msp_set_audmode(client);
681 break;
682 }
683
684 case VIDIOC_INT_I2S_CLOCK_FREQ:
685 {
686 u32 *a = (u32 *)arg;
687
688 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);
689
690 switch (*a) {
691 case 1024000:
692 state->i2s_mode = 0;
693 break;
694 case 2048000:
695 state->i2s_mode = 1;
696 break;
697 default:
698 return -EINVAL;
699 }
700 break;
701 }
702
703 case VIDIOC_QUERYCTRL:
704 {
705 struct v4l2_queryctrl *qc = arg;
706
707 switch (qc->id) {
708 case V4L2_CID_AUDIO_VOLUME:
709 case V4L2_CID_AUDIO_MUTE:
710 return v4l2_ctrl_query_fill_std(qc);
711 default:
712 break;
713 }
714 if (!state->has_sound_processing)
715 return -EINVAL;
716 switch (qc->id) {
717 case V4L2_CID_AUDIO_LOUDNESS:
718 case V4L2_CID_AUDIO_BALANCE:
719 case V4L2_CID_AUDIO_BASS:
720 case V4L2_CID_AUDIO_TREBLE:
721 return v4l2_ctrl_query_fill_std(qc);
722 default:
723 return -EINVAL;
724 }
725 }
726
727 case VIDIOC_G_CTRL:
728 return msp_get_ctrl(client, arg);
729
730 case VIDIOC_S_CTRL:
731 return msp_set_ctrl(client, arg);
732
733 case VIDIOC_LOG_STATUS:
734 {
735 const char *p;
736
737 if (state->opmode == OPMODE_AUTOSELECT)
738 msp_detect_stereo(client);
739 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
740 client->name, state->rev1, state->rev2);
741 v4l_info(client, "Audio: volume %d%s\n",
742 state->volume, state->muted ? " (muted)" : "");
743 if (state->has_sound_processing) {
744 v4l_info(client, "Audio: balance %d bass %d treble %d loudness %s\n",
745 state->balance, state->bass,
746 state->treble,
747 state->loudness ? "on" : "off");
748 }
749 switch (state->mode) {
750 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
751 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
752 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono/stereo"; break;
753 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
754 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
755 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
756 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
757 case MSP_MODE_BTSC: p = "BTSC"; break;
758 case MSP_MODE_EXTERN: p = "External input"; break;
759 default: p = "unknown"; break;
760 }
761 if (state->mode == MSP_MODE_EXTERN) {
762 v4l_info(client, "Mode: %s\n", p);
763 } else if (state->opmode == OPMODE_MANUAL) {
764 v4l_info(client, "Mode: %s (%s%s)\n", p,
765 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
766 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
767 } else {
768 if (state->opmode == OPMODE_AUTODETECT)
769 v4l_info(client, "Mode: %s\n", p);
770 v4l_info(client, "Standard: %s (%s%s)\n",
771 msp_standard_std_name(state->std),
772 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
773 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
774 }
775 v4l_info(client, "Audmode: 0x%04x\n", state->audmode);
776 v4l_info(client, "Routing: 0x%08x (input) 0x%08x (output)\n",
777 state->routing.input, state->routing.output);
778 v4l_info(client, "ACB: 0x%04x\n", state->acb);
779 break;
780 }
781
782 case VIDIOC_G_CHIP_IDENT:
783 return v4l2_chip_ident_i2c_client(client, arg, state->ident,
784 (state->rev1 << 16) | state->rev2);
785
786 default:
787 /* unknown */
788 return -EINVAL;
789 }
790 return 0;
791 }
792
793 static int msp_suspend(struct i2c_client *client, pm_message_t state)
794 {
795 v4l_dbg(1, msp_debug, client, "suspend\n");
796 msp_reset(client);
797 return 0;
798 }
799
800 static int msp_resume(struct i2c_client *client)
801 {
802 v4l_dbg(1, msp_debug, client, "resume\n");
803 msp_wake_thread(client);
804 return 0;
805 }
806
807 /* ----------------------------------------------------------------------- */
808
809 static int msp_probe(struct i2c_client *client, const struct i2c_device_id *id)
810 {
811 struct msp_state *state;
812 int (*thread_func)(void *data) = NULL;
813 int msp_hard;
814 int msp_family;
815 int msp_revision;
816 int msp_product, msp_prod_hi, msp_prod_lo;
817 int msp_rom;
818
819 if (!id)
820 strlcpy(client->name, "msp3400", sizeof(client->name));
821
822 if (msp_reset(client) == -1) {
823 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
824 return -ENODEV;
825 }
826
827 state = kzalloc(sizeof(*state), GFP_KERNEL);
828 if (!state)
829 return -ENOMEM;
830
831 i2c_set_clientdata(client, state);
832
833 state->v4l2_std = V4L2_STD_NTSC;
834 state->audmode = V4L2_TUNER_MODE_STEREO;
835 state->volume = 58880; /* 0db gain */
836 state->balance = 32768; /* 0db gain */
837 state->bass = 32768;
838 state->treble = 32768;
839 state->loudness = 0;
840 state->input = -1;
841 state->muted = 0;
842 state->i2s_mode = 0;
843 init_waitqueue_head(&state->wq);
844 /* These are the reset input/output positions */
845 state->routing.input = MSP_INPUT_DEFAULT;
846 state->routing.output = MSP_OUTPUT_DEFAULT;
847
848 state->rev1 = msp_read_dsp(client, 0x1e);
849 if (state->rev1 != -1)
850 state->rev2 = msp_read_dsp(client, 0x1f);
851 v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n",
852 state->rev1, state->rev2);
853 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
854 v4l_dbg(1, msp_debug, client,
855 "not an msp3400 (cannot read chip version)\n");
856 kfree(state);
857 return -ENODEV;
858 }
859
860 msp_set_audio(client);
861
862 msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
863 msp_product = (state->rev2 >> 8) & 0xff;
864 msp_prod_hi = msp_product / 10;
865 msp_prod_lo = msp_product % 10;
866 msp_revision = (state->rev1 & 0x0f) + '@';
867 msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
868 msp_rom = state->rev2 & 0x1f;
869 /* Rev B=2, C=3, D=4, G=7 */
870 state->ident = msp_family * 10000 + 4000 + msp_product * 10 +
871 msp_revision - '@';
872
873 /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
874 state->has_nicam =
875 msp_prod_hi == 1 || msp_prod_hi == 5;
876 /* Has radio support: was added with revision G */
877 state->has_radio =
878 msp_revision >= 'G';
879 /* Has headphones output: not for stripped down products */
880 state->has_headphones =
881 msp_prod_lo < 5;
882 /* Has scart2 input: not in stripped down products of the '3' family */
883 state->has_scart2 =
884 msp_family >= 4 || msp_prod_lo < 7;
885 /* Has scart3 input: not in stripped down products of the '3' family */
886 state->has_scart3 =
887 msp_family >= 4 || msp_prod_lo < 5;
888 /* Has scart4 input: not in pre D revisions, not in stripped D revs */
889 state->has_scart4 =
890 msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
891 /* Has scart2 output: not in stripped down products of
892 * the '3' family */
893 state->has_scart2_out =
894 msp_family >= 4 || msp_prod_lo < 5;
895 /* Has scart2 a volume control? Not in pre-D revisions. */
896 state->has_scart2_out_volume =
897 msp_revision > 'C' && state->has_scart2_out;
898 /* Has a configurable i2s out? */
899 state->has_i2s_conf =
900 msp_revision >= 'G' && msp_prod_lo < 7;
901 /* Has subwoofer output: not in pre-D revs and not in stripped down
902 * products */
903 state->has_subwoofer =
904 msp_revision >= 'D' && msp_prod_lo < 5;
905 /* Has soundprocessing (bass/treble/balance/loudness/equalizer):
906 * not in stripped down products */
907 state->has_sound_processing =
908 msp_prod_lo < 7;
909 /* Has Virtual Dolby Surround: only in msp34x1 */
910 state->has_virtual_dolby_surround =
911 msp_revision == 'G' && msp_prod_lo == 1;
912 /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
913 state->has_dolby_pro_logic =
914 msp_revision == 'G' && msp_prod_lo == 2;
915 /* The msp343xG supports BTSC only and cannot do Automatic Standard
916 * Detection. */
917 state->force_btsc =
918 msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3;
919
920 state->opmode = opmode;
921 if (state->opmode == OPMODE_AUTO) {
922 /* MSP revision G and up have both autodetect and autoselect */
923 if (msp_revision >= 'G')
924 state->opmode = OPMODE_AUTOSELECT;
925 /* MSP revision D and up have autodetect */
926 else if (msp_revision >= 'D')
927 state->opmode = OPMODE_AUTODETECT;
928 else
929 state->opmode = OPMODE_MANUAL;
930 }
931
932 /* hello world :-) */
933 v4l_info(client, "MSP%d4%02d%c-%c%d found @ 0x%x (%s)\n",
934 msp_family, msp_product,
935 msp_revision, msp_hard, msp_rom,
936 client->addr << 1, client->adapter->name);
937 v4l_info(client, "%s ", client->name);
938 if (state->has_nicam && state->has_radio)
939 printk(KERN_CONT "supports nicam and radio, ");
940 else if (state->has_nicam)
941 printk(KERN_CONT "supports nicam, ");
942 else if (state->has_radio)
943 printk(KERN_CONT "supports radio, ");
944 printk(KERN_CONT "mode is ");
945
946 /* version-specific initialization */
947 switch (state->opmode) {
948 case OPMODE_MANUAL:
949 printk(KERN_CONT "manual");
950 thread_func = msp3400c_thread;
951 break;
952 case OPMODE_AUTODETECT:
953 printk(KERN_CONT "autodetect");
954 thread_func = msp3410d_thread;
955 break;
956 case OPMODE_AUTOSELECT:
957 printk(KERN_CONT "autodetect and autoselect");
958 thread_func = msp34xxg_thread;
959 break;
960 }
961 printk(KERN_CONT "\n");
962
963 /* startup control thread if needed */
964 if (thread_func) {
965 state->kthread = kthread_run(thread_func, client, "msp34xx");
966
967 if (IS_ERR(state->kthread))
968 v4l_warn(client, "kernel_thread() failed\n");
969 msp_wake_thread(client);
970 }
971 return 0;
972 }
973
974 static int msp_remove(struct i2c_client *client)
975 {
976 struct msp_state *state = i2c_get_clientdata(client);
977
978 /* shutdown control thread */
979 if (state->kthread) {
980 state->restart = 1;
981 kthread_stop(state->kthread);
982 }
983 msp_reset(client);
984
985 kfree(state);
986 return 0;
987 }
988
989 /* ----------------------------------------------------------------------- */
990
991 static const struct i2c_device_id msp_id[] = {
992 { "msp3400", 0 },
993 { }
994 };
995 MODULE_DEVICE_TABLE(i2c, msp_id);
996
997 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
998 .name = "msp3400",
999 .driverid = I2C_DRIVERID_MSP3400,
1000 .command = msp_command,
1001 .probe = msp_probe,
1002 .remove = msp_remove,
1003 .suspend = msp_suspend,
1004 .resume = msp_resume,
1005 .id_table = msp_id,
1006 };
1007
1008 /*
1009 * Overrides for Emacs so that we follow Linus's tabbing style.
1010 * ---------------------------------------------------------------------------
1011 * Local variables:
1012 * c-basic-offset: 8
1013 * End:
1014 */
kernel-based virtual machine