projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
[deliverable/linux.git] / drivers / media / video / msp3400-driver.c
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 02110-1301, USA.
46 */
47
48
49 #include <linux/kernel.h>
50 #include <linux/module.h>
51 #include <linux/slab.h>
52 #include <linux/i2c.h>
53 #include <linux/videodev.h>
54 #include <linux/videodev2.h>
55 #include <media/v4l2-common.h>
56 #include <media/tvaudio.h>
57 #include <media/msp3400.h>
58 #include <linux/kthread.h>
59 #include <linux/suspend.h>
60 #include "msp3400-driver.h"
61
62 /* ---------------------------------------------------------------------- */
63
64 MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
65 MODULE_AUTHOR("Gerd Knorr");
66 MODULE_LICENSE("GPL");
67
68 /* module parameters */
69 static int opmode = OPMODE_AUTO;
70 int msp_debug; /* msp_debug output */
71 int msp_once; /* no continous stereo monitoring */
72 int msp_amsound; /* hard-wire AM sound at 6.5 Hz (france),
73 the autoscan seems work well only with FM... */
74 int msp_standard = 1; /* Override auto detect of audio msp_standard, if needed. */
75 int msp_dolby;
76
77 int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual
78 (msp34xxg only) 0x00a0-0x03c0 */
79
80 /* read-only */
81 module_param(opmode, int, 0444);
82
83 /* read-write */
84 module_param_named(once,msp_once, bool, 0644);
85 module_param_named(debug,msp_debug, int, 0644);
86 module_param_named(stereo_threshold,msp_stereo_thresh, int, 0644);
87 module_param_named(standard,msp_standard, int, 0644);
88 module_param_named(amsound,msp_amsound, bool, 0644);
89 module_param_named(dolby,msp_dolby, bool, 0644);
90
91 MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
92 MODULE_PARM_DESC(once, "No continuous stereo monitoring");
93 MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
94 MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
95 MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
96 MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
97 MODULE_PARM_DESC(dolby, "Activates Dolby processsing");
98
99 /* ---------------------------------------------------------------------- */
100
101 /* control subaddress */
102 #define I2C_MSP_CONTROL 0x00
103 /* demodulator unit subaddress */
104 #define I2C_MSP_DEM 0x10
105 /* DSP unit subaddress */
106 #define I2C_MSP_DSP 0x12
107
108 /* Addresses to scan */
109 static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END };
110 I2C_CLIENT_INSMOD;
111
112 /* ----------------------------------------------------------------------- */
113 /* functions for talking to the MSP3400C Sound processor */
114
115 int msp_reset(struct i2c_client *client)
116 {
117 /* reset and read revision code */
118 static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
119 static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 };
120 static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e };
121 u8 read[2];
122 struct i2c_msg reset[2] = {
123 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
124 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on },
125 };
126 struct i2c_msg test[2] = {
127 { client->addr, 0, 3, write },
128 { client->addr, I2C_M_RD, 2, read },
129 };
130
131 v4l_dbg(3, msp_debug, client, "msp_reset\n");
132 if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
133 i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
134 i2c_transfer(client->adapter, test, 2) != 2) {
135 v4l_err(client, "chip reset failed\n");
136 return -1;
137 }
138 return 0;
139 }
140
141 static int msp_read(struct i2c_client *client, int dev, int addr)
142 {
143 int err, retval;
144 u8 write[3];
145 u8 read[2];
146 struct i2c_msg msgs[2] = {
147 { client->addr, 0, 3, write },
148 { client->addr, I2C_M_RD, 2, read }
149 };
150
151 write[0] = dev + 1;
152 write[1] = addr >> 8;
153 write[2] = addr & 0xff;
154
155 for (err = 0; err < 3; err++) {
156 if (i2c_transfer(client->adapter, msgs, 2) == 2)
157 break;
158 v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
159 dev, addr);
160 current->state = TASK_INTERRUPTIBLE;
161 schedule_timeout(msecs_to_jiffies(10));
162 }
163 if (err == 3) {
164 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
165 msp_reset(client);
166 return -1;
167 }
168 retval = read[0] << 8 | read[1];
169 v4l_dbg(3, msp_debug, client, "msp_read(0x%x, 0x%x): 0x%x\n", dev, addr, retval);
170 return retval;
171 }
172
173 int msp_read_dem(struct i2c_client *client, int addr)
174 {
175 return msp_read(client, I2C_MSP_DEM, addr);
176 }
177
178 int msp_read_dsp(struct i2c_client *client, int addr)
179 {
180 return msp_read(client, I2C_MSP_DSP, addr);
181 }
182
183 static int msp_write(struct i2c_client *client, int dev, int addr, int val)
184 {
185 int err;
186 u8 buffer[5];
187
188 buffer[0] = dev;
189 buffer[1] = addr >> 8;
190 buffer[2] = addr & 0xff;
191 buffer[3] = val >> 8;
192 buffer[4] = val & 0xff;
193
194 v4l_dbg(3, msp_debug, client, "msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val);
195 for (err = 0; err < 3; err++) {
196 if (i2c_master_send(client, buffer, 5) == 5)
197 break;
198 v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
199 dev, addr);
200 current->state = TASK_INTERRUPTIBLE;
201 schedule_timeout(msecs_to_jiffies(10));
202 }
203 if (err == 3) {
204 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
205 msp_reset(client);
206 return -1;
207 }
208 return 0;
209 }
210
211 int msp_write_dem(struct i2c_client *client, int addr, int val)
212 {
213 return msp_write(client, I2C_MSP_DEM, addr, val);
214 }
215
216 int msp_write_dsp(struct i2c_client *client, int addr, int val)
217 {
218 return msp_write(client, I2C_MSP_DSP, addr, val);
219 }
220
221 /* ----------------------------------------------------------------------- *
222 * bits 9 8 5 - SCART DSP input Select:
223 * 0 0 0 - SCART 1 to DSP input (reset position)
224 * 0 1 0 - MONO to DSP input
225 * 1 0 0 - SCART 2 to DSP input
226 * 1 1 1 - Mute DSP input
227 *
228 * bits 11 10 6 - SCART 1 Output Select:
229 * 0 0 0 - undefined (reset position)
230 * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
231 * 1 0 0 - MONO input to SCART 1 Output
232 * 1 1 0 - SCART 1 DA to SCART 1 Output
233 * 0 0 1 - SCART 2 DA to SCART 1 Output
234 * 0 1 1 - SCART 1 Input to SCART 1 Output
235 * 1 1 1 - Mute SCART 1 Output
236 *
237 * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART):
238 * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position)
239 * 0 1 0 - SCART 1 Input to SCART 2 Output
240 * 1 0 0 - MONO input to SCART 2 Output
241 * 0 0 1 - SCART 2 DA to SCART 2 Output
242 * 0 1 1 - SCART 2 Input to SCART 2 Output
243 * 1 1 0 - Mute SCART 2 Output
244 *
245 * Bits 4 to 0 should be zero.
246 * ----------------------------------------------------------------------- */
247
248 static int scarts[3][9] = {
249 /* MASK IN1 IN2 IN3 IN4 IN1_DA IN2_DA MONO MUTE */
250 /* SCART DSP Input select */
251 { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1, -1, 0x0100, 0x0320 },
252 /* SCART1 Output select */
253 { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 },
254 /* SCART2 Output select */
255 { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 },
256 };
257
258 static char *scart_names[] = {
259 "in1", "in2", "in3", "in4", "in1 da", "in2 da", "mono", "mute"
260 };
261
262 void msp_set_scart(struct i2c_client *client, int in, int out)
263 {
264 struct msp_state *state = i2c_get_clientdata(client);
265
266 state->in_scart = in;
267
268 if (in >= 0 && in <= 7 && out >= 0 && out <= 2) {
269 if (-1 == scarts[out][in + 1])
270 return;
271
272 state->acb &= ~scarts[out][0];
273 state->acb |= scarts[out][in + 1];
274 } else
275 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
276
277 v4l_dbg(1, msp_debug, client, "scart switch: %s => %d (ACB=0x%04x)\n",
278 scart_names[in], out, state->acb);
279 msp_write_dsp(client, 0x13, state->acb);
280
281 /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
282 if (state->has_i2s_conf)
283 msp_write_dem(client, 0x40, state->i2s_mode);
284 }
285
286 void msp_set_audio(struct i2c_client *client)
287 {
288 struct msp_state *state = i2c_get_clientdata(client);
289 int bal = 0, bass, treble, loudness;
290 int val = 0;
291 int reallymuted = state->muted | state->scan_in_progress;
292
293 if (!reallymuted)
294 val = (state->volume * 0x7f / 65535) << 8;
295
296 v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n",
297 state->muted ? "on" : "off", state->scan_in_progress ? "yes" : "no",
298 state->volume);
299
300 msp_write_dsp(client, 0x0000, val);
301 msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1));
302 if (state->has_scart2_out_volume)
303 msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1));
304 if (state->has_headphones)
305 msp_write_dsp(client, 0x0006, val);
306 if (!state->has_sound_processing)
307 return;
308
309 if (val)
310 bal = (u8)((state->balance / 256) - 128);
311 bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
312 treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
313 loudness = state->loudness ? ((5 * 4) << 8) : 0;
314
315 v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
316 state->balance, state->bass, state->treble, state->loudness);
317
318 msp_write_dsp(client, 0x0001, bal << 8);
319 msp_write_dsp(client, 0x0002, bass);
320 msp_write_dsp(client, 0x0003, treble);
321 msp_write_dsp(client, 0x0004, loudness);
322 if (!state->has_headphones)
323 return;
324 msp_write_dsp(client, 0x0030, bal << 8);
325 msp_write_dsp(client, 0x0031, bass);
326 msp_write_dsp(client, 0x0032, treble);
327 msp_write_dsp(client, 0x0033, loudness);
328 }
329
330 /* ------------------------------------------------------------------------ */
331
332
333 static void msp_wake_thread(struct i2c_client *client)
334 {
335 struct msp_state *state = i2c_get_clientdata(client);
336
337 if (NULL == state->kthread)
338 return;
339 state->watch_stereo = 0;
340 state->restart = 1;
341 wake_up_interruptible(&state->wq);
342 }
343
344 int msp_sleep(struct msp_state *state, int timeout)
345 {
346 DECLARE_WAITQUEUE(wait, current);
347
348 add_wait_queue(&state->wq, &wait);
349 if (!kthread_should_stop()) {
350 if (timeout < 0) {
351 set_current_state(TASK_INTERRUPTIBLE);
352 schedule();
353 } else {
354 schedule_timeout_interruptible
355 (msecs_to_jiffies(timeout));
356 }
357 }
358
359 remove_wait_queue(&state->wq, &wait);
360 try_to_freeze();
361 return state->restart;
362 }
363
364 /* ------------------------------------------------------------------------ */
365
366 static int msp_mode_v4l2_to_v4l1(int rxsubchans, int audmode)
367 {
368 if (rxsubchans == V4L2_TUNER_SUB_MONO)
369 return VIDEO_SOUND_MONO;
370 if (rxsubchans == V4L2_TUNER_SUB_STEREO)
371 return VIDEO_SOUND_STEREO;
372 if (audmode == V4L2_TUNER_MODE_LANG2)
373 return VIDEO_SOUND_LANG2;
374 return VIDEO_SOUND_LANG1;
375 }
376
377 static int msp_mode_v4l1_to_v4l2(int mode)
378 {
379 if (mode & VIDEO_SOUND_STEREO)
380 return V4L2_TUNER_MODE_STEREO;
381 if (mode & VIDEO_SOUND_LANG2)
382 return V4L2_TUNER_MODE_LANG2;
383 if (mode & VIDEO_SOUND_LANG1)
384 return V4L2_TUNER_MODE_LANG1;
385 return V4L2_TUNER_MODE_MONO;
386 }
387
388 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
389 {
390 struct msp_state *state = i2c_get_clientdata(client);
391
392 switch (ctrl->id) {
393 case V4L2_CID_AUDIO_VOLUME:
394 ctrl->value = state->volume;
395 break;
396
397 case V4L2_CID_AUDIO_MUTE:
398 ctrl->value = state->muted;
399 break;
400
401 case V4L2_CID_AUDIO_BALANCE:
402 if (!state->has_sound_processing)
403 return -EINVAL;
404 ctrl->value = state->balance;
405 break;
406
407 case V4L2_CID_AUDIO_BASS:
408 if (!state->has_sound_processing)
409 return -EINVAL;
410 ctrl->value = state->bass;
411 break;
412
413 case V4L2_CID_AUDIO_TREBLE:
414 if (!state->has_sound_processing)
415 return -EINVAL;
416 ctrl->value = state->treble;
417 break;
418
419 case V4L2_CID_AUDIO_LOUDNESS:
420 if (!state->has_sound_processing)
421 return -EINVAL;
422 ctrl->value = state->loudness;
423 break;
424
425 default:
426 return -EINVAL;
427 }
428 return 0;
429 }
430
431 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
432 {
433 struct msp_state *state = i2c_get_clientdata(client);
434
435 switch (ctrl->id) {
436 case V4L2_CID_AUDIO_VOLUME:
437 state->volume = ctrl->value;
438 if (state->volume == 0)
439 state->balance = 32768;
440 break;
441
442 case V4L2_CID_AUDIO_MUTE:
443 if (ctrl->value < 0 || ctrl->value >= 2)
444 return -ERANGE;
445 state->muted = ctrl->value;
446 break;
447
448 case V4L2_CID_AUDIO_BASS:
449 if (!state->has_sound_processing)
450 return -EINVAL;
451 state->bass = ctrl->value;
452 break;
453
454 case V4L2_CID_AUDIO_TREBLE:
455 if (!state->has_sound_processing)
456 return -EINVAL;
457 state->treble = ctrl->value;
458 break;
459
460 case V4L2_CID_AUDIO_LOUDNESS:
461 if (!state->has_sound_processing)
462 return -EINVAL;
463 state->loudness = ctrl->value;
464 break;
465
466 case V4L2_CID_AUDIO_BALANCE:
467 if (!state->has_sound_processing)
468 return -EINVAL;
469 state->balance = ctrl->value;
470 break;
471
472 default:
473 return -EINVAL;
474 }
475 msp_set_audio(client);
476 return 0;
477 }
478
479 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
480 {
481 struct msp_state *state = i2c_get_clientdata(client);
482
483 if (msp_debug >= 2)
484 v4l_i2c_print_ioctl(client, cmd);
485
486 switch (cmd) {
487 case AUDC_SET_RADIO:
488 if (state->radio)
489 return 0;
490 state->radio = 1;
491 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
492 state->watch_stereo = 0;
493 switch (state->opmode) {
494 case OPMODE_MANUAL:
495 /* set msp3400 to FM radio mode */
496 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
497 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
498 MSP_CARRIER(10.7));
499 msp_set_audio(client);
500 break;
501 case OPMODE_AUTODETECT:
502 case OPMODE_AUTOSELECT:
503 /* the thread will do for us */
504 msp_wake_thread(client);
505 break;
506 }
507 break;
508
509 /* --- v4l ioctls --- */
510 /* take care: bttv does userspace copying, we'll get a
511 kernel pointer here... */
512 case VIDIOCGAUDIO:
513 {
514 struct video_audio *va = arg;
515
516 va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE;
517 if (state->has_sound_processing)
518 va->flags |= VIDEO_AUDIO_BALANCE |
519 VIDEO_AUDIO_BASS |
520 VIDEO_AUDIO_TREBLE;
521 if (state->muted)
522 va->flags |= VIDEO_AUDIO_MUTE;
523 va->volume = state->volume;
524 va->balance = state->volume ? state->balance : 32768;
525 va->bass = state->bass;
526 va->treble = state->treble;
527
528 if (state->radio)
529 break;
530 if (state->opmode == OPMODE_AUTOSELECT)
531 msp_detect_stereo(client);
532 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans, state->audmode);
533 break;
534 }
535
536 case VIDIOCSAUDIO:
537 {
538 struct video_audio *va = arg;
539
540 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
541 state->volume = va->volume;
542 state->balance = va->balance;
543 state->bass = va->bass;
544 state->treble = va->treble;
545 msp_set_audio(client);
546
547 if (va->mode != 0 && state->radio == 0 &&
548 state->audmode != msp_mode_v4l1_to_v4l2(va->mode)) {
549 state->audmode = msp_mode_v4l1_to_v4l2(va->mode);
550 msp_set_audmode(client);
551 }
552 break;
553 }
554
555 case VIDIOCSCHAN:
556 {
557 struct video_channel *vc = arg;
558 int update = 0;
559 v4l2_std_id std;
560
561 if (state->radio)
562 update = 1;
563 state->radio = 0;
564 if (vc->norm == VIDEO_MODE_PAL)
565 std = V4L2_STD_PAL;
566 else if (vc->norm == VIDEO_MODE_SECAM)
567 std = V4L2_STD_SECAM;
568 else
569 std = V4L2_STD_NTSC;
570 if (std != state->v4l2_std) {
571 state->v4l2_std = std;
572 update = 1;
573 }
574 if (update)
575 msp_wake_thread(client);
576 break;
577 }
578
579 case VIDIOCSFREQ:
580 case VIDIOC_S_FREQUENCY:
581 {
582 /* new channel -- kick audio carrier scan */
583 msp_wake_thread(client);
584 break;
585 }
586
587 /* --- v4l2 ioctls --- */
588 case VIDIOC_S_STD:
589 {
590 v4l2_std_id *id = arg;
591 int update = state->radio || state->v4l2_std != *id;
592
593 state->v4l2_std = *id;
594 state->radio = 0;
595 if (update)
596 msp_wake_thread(client);
597 return 0;
598 }
599
600 case VIDIOC_INT_G_AUDIO_ROUTING:
601 {
602 struct v4l2_routing *rt = arg;
603
604 *rt = state->routing;
605 break;
606 }
607
608 case VIDIOC_INT_S_AUDIO_ROUTING:
609 {
610 struct v4l2_routing *rt = arg;
611 int tuner = (rt->input >> 3) & 1;
612 int sc_in = rt->input & 0x7;
613 int sc1_out = rt->output & 0xf;
614 int sc2_out = (rt->output >> 4) & 0xf;
615 u16 val, reg;
616 int i;
617 int extern_input = 1;
618
619 if (state->routing.input == rt->input &&
620 state->routing.output == rt->output)
621 break;
622 state->routing = *rt;
623 /* check if the tuner input is used */
624 for (i = 0; i < 5; i++) {
625 if (((rt->input >> (4 + i * 4)) & 0xf) == 0)
626 extern_input = 0;
627 }
628 if (extern_input)
629 state->mode = MSP_MODE_EXTERN;
630 else
631 state->mode = MSP_MODE_AM_DETECT;
632 msp_set_scart(client, sc_in, 0);
633 msp_set_scart(client, sc1_out, 1);
634 msp_set_scart(client, sc2_out, 2);
635 msp_set_audmode(client);
636 reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb;
637 val = msp_read_dem(client, reg);
638 msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8));
639 /* wake thread when a new input is chosen */
640 msp_wake_thread(client);
641 break;
642 }
643
644 case VIDIOC_G_TUNER:
645 {
646 struct v4l2_tuner *vt = arg;
647
648 if (state->radio)
649 break;
650 if (state->opmode == OPMODE_AUTOSELECT)
651 msp_detect_stereo(client);
652 vt->audmode = state->audmode;
653 vt->rxsubchans = state->rxsubchans;
654 vt->capability |= V4L2_TUNER_CAP_STEREO |
655 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
656 break;
657 }
658
659 case VIDIOC_S_TUNER:
660 {
661 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
662
663 if (state->radio) /* TODO: add mono/stereo support for radio */
664 break;
665 if (state->audmode == vt->audmode)
666 break;
667 state->audmode = vt->audmode;
668 /* only set audmode */
669 msp_set_audmode(client);
670 break;
671 }
672
673 case VIDIOC_INT_I2S_CLOCK_FREQ:
674 {
675 u32 *a = (u32 *)arg;
676
677 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);
678
679 switch (*a) {
680 case 1024000:
681 state->i2s_mode = 0;
682 break;
683 case 2048000:
684 state->i2s_mode = 1;
685 break;
686 default:
687 return -EINVAL;
688 }
689 break;
690 }
691
692 case VIDIOC_QUERYCTRL:
693 {
694 struct v4l2_queryctrl *qc = arg;
695
696 switch (qc->id) {
697 case V4L2_CID_AUDIO_VOLUME:
698 case V4L2_CID_AUDIO_MUTE:
699 return v4l2_ctrl_query_fill_std(qc);
700 default:
701 break;
702 }
703 if (!state->has_sound_processing)
704 return -EINVAL;
705 switch (qc->id) {
706 case V4L2_CID_AUDIO_LOUDNESS:
707 case V4L2_CID_AUDIO_BALANCE:
708 case V4L2_CID_AUDIO_BASS:
709 case V4L2_CID_AUDIO_TREBLE:
710 return v4l2_ctrl_query_fill_std(qc);
711 default:
712 return -EINVAL;
713 }
714 }
715
716 case VIDIOC_G_CTRL:
717 return msp_get_ctrl(client, arg);
718
719 case VIDIOC_S_CTRL:
720 return msp_set_ctrl(client, arg);
721
722 case VIDIOC_LOG_STATUS:
723 {
724 const char *p;
725
726 if (state->opmode == OPMODE_AUTOSELECT)
727 msp_detect_stereo(client);
728 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
729 client->name, state->rev1, state->rev2);
730 v4l_info(client, "Audio: volume %d%s\n",
731 state->volume, state->muted ? " (muted)" : "");
732 if (state->has_sound_processing) {
733 v4l_info(client, "Audio: balance %d bass %d treble %d loudness %s\n",
734 state->balance, state->bass, state->treble,
735 state->loudness ? "on" : "off");
736 }
737 switch (state->mode) {
738 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
739 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
740 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono + FM-stereo"; break;
741 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
742 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
743 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
744 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
745 case MSP_MODE_BTSC: p = "BTSC"; break;
746 case MSP_MODE_EXTERN: p = "External input"; break;
747 default: p = "unknown"; break;
748 }
749 if (state->mode == MSP_MODE_EXTERN) {
750 v4l_info(client, "Mode: %s\n", p);
751 } else if (state->opmode == OPMODE_MANUAL) {
752 v4l_info(client, "Mode: %s (%s%s)\n", p,
753 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
754 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
755 } else {
756 if (state->opmode == OPMODE_AUTODETECT)
757 v4l_info(client, "Mode: %s\n", p);
758 v4l_info(client, "Standard: %s (%s%s)\n",
759 msp_standard_std_name(state->std),
760 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
761 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
762 }
763 v4l_info(client, "Audmode: 0x%04x\n", state->audmode);
764 v4l_info(client, "Routing: 0x%08x (input) 0x%08x (output)\n",
765 state->routing.input, state->routing.output);
766 v4l_info(client, "ACB: 0x%04x\n", state->acb);
767 break;
768 }
769
770 default:
771 /* unknown */
772 return -EINVAL;
773 }
774 return 0;
775 }
776
777 static int msp_suspend(struct device * dev, pm_message_t state)
778 {
779 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
780
781 v4l_dbg(1, msp_debug, client, "suspend\n");
782 msp_reset(client);
783 return 0;
784 }
785
786 static int msp_resume(struct device * dev)
787 {
788 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
789
790 v4l_dbg(1, msp_debug, client, "resume\n");
791 msp_wake_thread(client);
792 return 0;
793 }
794
795 /* ----------------------------------------------------------------------- */
796
797 static struct i2c_driver i2c_driver;
798
799 static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
800 {
801 struct i2c_client *client;
802 struct msp_state *state;
803 int (*thread_func)(void *data) = NULL;
804 int msp_hard;
805 int msp_family;
806 int msp_revision;
807 int msp_product, msp_prod_hi, msp_prod_lo;
808 int msp_rom;
809
810 client = kmalloc(sizeof(*client), GFP_KERNEL);
811 if (client == NULL)
812 return -ENOMEM;
813 memset(client, 0, sizeof(*client));
814 client->addr = address;
815 client->adapter = adapter;
816 client->driver = &i2c_driver;
817 snprintf(client->name, sizeof(client->name) - 1, "msp3400");
818
819 if (msp_reset(client) == -1) {
820 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
821 kfree(client);
822 return -1;
823 }
824
825 state = kmalloc(sizeof(*state), GFP_KERNEL);
826 if (state == NULL) {
827 kfree(client);
828 return -ENOMEM;
829 }
830 i2c_set_clientdata(client, state);
831
832 memset(state, 0, sizeof(*state));
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", state->rev1, state->rev2);
852 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
853 v4l_dbg(1, msp_debug, client, "not an msp3400 (cannot read chip version)\n");
854 kfree(state);
855 kfree(client);
856 return -1;
857 }
858
859 msp_set_audio(client);
860
861 msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
862 msp_product = (state->rev2 >> 8) & 0xff;
863 msp_prod_hi = msp_product / 10;
864 msp_prod_lo = msp_product % 10;
865 msp_revision = (state->rev1 & 0x0f) + '@';
866 msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
867 msp_rom = state->rev2 & 0x1f;
868 snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
869 msp_family, msp_product,
870 msp_revision, msp_hard, msp_rom);
871
872 /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
873 state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
874 /* Has radio support: was added with revision G */
875 state->has_radio = msp_revision >= 'G';
876 /* Has headphones output: not for stripped down products */
877 state->has_headphones = msp_prod_lo < 5;
878 /* Has scart2 input: not in stripped down products of the '3' family */
879 state->has_scart2 = msp_family >= 4 || msp_prod_lo < 7;
880 /* Has scart3 input: not in stripped down products of the '3' family */
881 state->has_scart3 = msp_family >= 4 || msp_prod_lo < 5;
882 /* Has scart4 input: not in pre D revisions, not in stripped D revs */
883 state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
884 /* Has scart2 output: not in stripped down products of the '3' family */
885 state->has_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
886 /* Has scart2 a volume control? Not in pre-D revisions. */
887 state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart2_out;
888 /* Has a configurable i2s out? */
889 state->has_i2s_conf = msp_revision >= 'G' && msp_prod_lo < 7;
890 /* Has subwoofer output: not in pre-D revs and not in stripped down products */
891 state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
892 /* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
893 stripped down products */
894 state->has_sound_processing = msp_prod_lo < 7;
895 /* Has Virtual Dolby Surround: only in msp34x1 */
896 state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
897 /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
898 state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;
899
900 state->opmode = opmode;
901 if (state->opmode == OPMODE_AUTO) {
902 /* MSP revision G and up have both autodetect and autoselect */
903 if (msp_revision >= 'G')
904 state->opmode = OPMODE_AUTOSELECT;
905 /* MSP revision D and up have autodetect */
906 else if (msp_revision >= 'D')
907 state->opmode = OPMODE_AUTODETECT;
908 else
909 state->opmode = OPMODE_MANUAL;
910 }
911
912 /* hello world :-) */
913 v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
914 v4l_info(client, "%s ", client->name);
915 if (state->has_nicam && state->has_radio)
916 printk("supports nicam and radio, ");
917 else if (state->has_nicam)
918 printk("supports nicam, ");
919 else if (state->has_radio)
920 printk("supports radio, ");
921 printk("mode is ");
922
923 /* version-specific initialization */
924 switch (state->opmode) {
925 case OPMODE_MANUAL:
926 printk("manual");
927 thread_func = msp3400c_thread;
928 break;
929 case OPMODE_AUTODETECT:
930 printk("autodetect");
931 thread_func = msp3410d_thread;
932 break;
933 case OPMODE_AUTOSELECT:
934 printk("autodetect and autoselect");
935 thread_func = msp34xxg_thread;
936 break;
937 }
938 printk("\n");
939
940 /* startup control thread if needed */
941 if (thread_func) {
942 state->kthread = kthread_run(thread_func, client, "msp34xx");
943
944 if (state->kthread == NULL)
945 v4l_warn(client, "kernel_thread() failed\n");
946 msp_wake_thread(client);
947 }
948
949 /* done */
950 i2c_attach_client(client);
951
952 return 0;
953 }
954
955 static int msp_probe(struct i2c_adapter *adapter)
956 {
957 if (adapter->class & I2C_CLASS_TV_ANALOG)
958 return i2c_probe(adapter, &addr_data, msp_attach);
959 return 0;
960 }
961
962 static int msp_detach(struct i2c_client *client)
963 {
964 struct msp_state *state = i2c_get_clientdata(client);
965 int err;
966
967 /* shutdown control thread */
968 if (state->kthread) {
969 state->restart = 1;
970 kthread_stop(state->kthread);
971 }
972 msp_reset(client);
973
974 err = i2c_detach_client(client);
975 if (err) {
976 return err;
977 }
978
979 kfree(state);
980 kfree(client);
981 return 0;
982 }
983
984 /* ----------------------------------------------------------------------- */
985
986 /* i2c implementation */
987 static struct i2c_driver i2c_driver = {
988 .id = I2C_DRIVERID_MSP3400,
989 .attach_adapter = msp_probe,
990 .detach_client = msp_detach,
991 .command = msp_command,
992 .driver = {
993 .name = "msp3400",
994 .suspend = msp_suspend,
995 .resume = msp_resume,
996 },
997 };
998
999 static int __init msp3400_init_module(void)
1000 {
1001 return i2c_add_driver(&i2c_driver);
1002 }
1003
1004 static void __exit msp3400_cleanup_module(void)
1005 {
1006 i2c_del_driver(&i2c_driver);
1007 }
1008
1009 module_init(msp3400_init_module);
1010 module_exit(msp3400_cleanup_module);
1011
1012 /*
1013 * Overrides for Emacs so that we follow Linus's tabbing style.
1014 * ---------------------------------------------------------------------------
1015 * Local variables:
1016 * c-basic-offset: 8
1017 * End:
1018 */
Linux kernel - Deliverables
This page took 0.053313 seconds and 6 git commands to generate.