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Linux 2.6.17.7
[linux/fpc-iii.git] / drivers / media / video / msp3400-driver.c
blobb806999d6e0fc69e11c01c2accf67ba4a38562d5
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 struct v4l2_queryctrl msp_qctrl_std[] = {
389 {
390 .id = V4L2_CID_AUDIO_VOLUME,
391 .name = "Volume",
392 .minimum = 0,
393 .maximum = 65535,
394 .step = 65535/100,
395 .default_value = 58880,
396 .flags = 0,
397 .type = V4L2_CTRL_TYPE_INTEGER,
398 },{
399 .id = V4L2_CID_AUDIO_MUTE,
400 .name = "Mute",
401 .minimum = 0,
402 .maximum = 1,
403 .step = 1,
404 .default_value = 1,
405 .flags = 0,
406 .type = V4L2_CTRL_TYPE_BOOLEAN,
407 },
408 };
409
410 static struct v4l2_queryctrl msp_qctrl_sound_processing[] = {
411 {
412 .id = V4L2_CID_AUDIO_BALANCE,
413 .name = "Balance",
414 .minimum = 0,
415 .maximum = 65535,
416 .step = 65535/100,
417 .default_value = 32768,
418 .flags = 0,
419 .type = V4L2_CTRL_TYPE_INTEGER,
420 },{
421 .id = V4L2_CID_AUDIO_BASS,
422 .name = "Bass",
423 .minimum = 0,
424 .maximum = 65535,
425 .step = 65535/100,
426 .default_value = 32768,
427 .type = V4L2_CTRL_TYPE_INTEGER,
428 },{
429 .id = V4L2_CID_AUDIO_TREBLE,
430 .name = "Treble",
431 .minimum = 0,
432 .maximum = 65535,
433 .step = 65535/100,
434 .default_value = 32768,
435 .type = V4L2_CTRL_TYPE_INTEGER,
436 },{
437 .id = V4L2_CID_AUDIO_LOUDNESS,
438 .name = "Loudness",
439 .minimum = 0,
440 .maximum = 1,
441 .step = 1,
442 .default_value = 1,
443 .flags = 0,
444 .type = V4L2_CTRL_TYPE_BOOLEAN,
445 },
446 };
447
448
449 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
450 {
451 struct msp_state *state = i2c_get_clientdata(client);
452
453 switch (ctrl->id) {
454 case V4L2_CID_AUDIO_VOLUME:
455 ctrl->value = state->volume;
456 break;
457
458 case V4L2_CID_AUDIO_MUTE:
459 ctrl->value = state->muted;
460 break;
461
462 case V4L2_CID_AUDIO_BALANCE:
463 if (!state->has_sound_processing)
464 return -EINVAL;
465 ctrl->value = state->balance;
466 break;
467
468 case V4L2_CID_AUDIO_BASS:
469 if (!state->has_sound_processing)
470 return -EINVAL;
471 ctrl->value = state->bass;
472 break;
473
474 case V4L2_CID_AUDIO_TREBLE:
475 if (!state->has_sound_processing)
476 return -EINVAL;
477 ctrl->value = state->treble;
478 break;
479
480 case V4L2_CID_AUDIO_LOUDNESS:
481 if (!state->has_sound_processing)
482 return -EINVAL;
483 ctrl->value = state->loudness;
484 break;
485
486 default:
487 return -EINVAL;
488 }
489 return 0;
490 }
491
492 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
493 {
494 struct msp_state *state = i2c_get_clientdata(client);
495
496 switch (ctrl->id) {
497 case V4L2_CID_AUDIO_VOLUME:
498 state->volume = ctrl->value;
499 if (state->volume == 0)
500 state->balance = 32768;
501 break;
502
503 case V4L2_CID_AUDIO_MUTE:
504 if (ctrl->value < 0 || ctrl->value >= 2)
505 return -ERANGE;
506 state->muted = ctrl->value;
507 break;
508
509 case V4L2_CID_AUDIO_BASS:
510 if (!state->has_sound_processing)
511 return -EINVAL;
512 state->bass = ctrl->value;
513 break;
514
515 case V4L2_CID_AUDIO_TREBLE:
516 if (!state->has_sound_processing)
517 return -EINVAL;
518 state->treble = ctrl->value;
519 break;
520
521 case V4L2_CID_AUDIO_LOUDNESS:
522 if (!state->has_sound_processing)
523 return -EINVAL;
524 state->loudness = ctrl->value;
525 break;
526
527 case V4L2_CID_AUDIO_BALANCE:
528 if (!state->has_sound_processing)
529 return -EINVAL;
530 state->balance = ctrl->value;
531 break;
532
533 default:
534 return -EINVAL;
535 }
536 msp_set_audio(client);
537 return 0;
538 }
539
540 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
541 {
542 struct msp_state *state = i2c_get_clientdata(client);
543
544 if (msp_debug >= 2)
545 v4l_i2c_print_ioctl(client, cmd);
546
547 switch (cmd) {
548 case AUDC_SET_RADIO:
549 if (state->radio)
550 return 0;
551 state->radio = 1;
552 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
553 state->watch_stereo = 0;
554 switch (state->opmode) {
555 case OPMODE_MANUAL:
556 /* set msp3400 to FM radio mode */
557 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
558 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
559 MSP_CARRIER(10.7));
560 msp_set_audio(client);
561 break;
562 case OPMODE_AUTODETECT:
563 case OPMODE_AUTOSELECT:
564 /* the thread will do for us */
565 msp_wake_thread(client);
566 break;
567 }
568 break;
569
570 /* --- v4l ioctls --- */
571 /* take care: bttv does userspace copying, we'll get a
572 kernel pointer here... */
573 case VIDIOCGAUDIO:
574 {
575 struct video_audio *va = arg;
576
577 va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE;
578 if (state->has_sound_processing)
579 va->flags |= VIDEO_AUDIO_BALANCE |
580 VIDEO_AUDIO_BASS |
581 VIDEO_AUDIO_TREBLE;
582 if (state->muted)
583 va->flags |= VIDEO_AUDIO_MUTE;
584 va->volume = state->volume;
585 va->balance = state->volume ? state->balance : 32768;
586 va->bass = state->bass;
587 va->treble = state->treble;
588
589 if (state->radio)
590 break;
591 if (state->opmode == OPMODE_AUTOSELECT)
592 msp_detect_stereo(client);
593 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans, state->audmode);
594 break;
595 }
596
597 case VIDIOCSAUDIO:
598 {
599 struct video_audio *va = arg;
600
601 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
602 state->volume = va->volume;
603 state->balance = va->balance;
604 state->bass = va->bass;
605 state->treble = va->treble;
606 msp_set_audio(client);
607
608 if (va->mode != 0 && state->radio == 0 &&
609 state->audmode != msp_mode_v4l1_to_v4l2(va->mode)) {
610 state->audmode = msp_mode_v4l1_to_v4l2(va->mode);
611 msp_set_audmode(client);
612 }
613 break;
614 }
615
616 case VIDIOCSCHAN:
617 {
618 struct video_channel *vc = arg;
619 int update = 0;
620 v4l2_std_id std;
621
622 if (state->radio)
623 update = 1;
624 state->radio = 0;
625 if (vc->norm == VIDEO_MODE_PAL)
626 std = V4L2_STD_PAL;
627 else if (vc->norm == VIDEO_MODE_SECAM)
628 std = V4L2_STD_SECAM;
629 else
630 std = V4L2_STD_NTSC;
631 if (std != state->v4l2_std) {
632 state->v4l2_std = std;
633 update = 1;
634 }
635 if (update)
636 msp_wake_thread(client);
637 break;
638 }
639
640 case VIDIOCSFREQ:
641 case VIDIOC_S_FREQUENCY:
642 {
643 /* new channel -- kick audio carrier scan */
644 msp_wake_thread(client);
645 break;
646 }
647
648 /* --- v4l2 ioctls --- */
649 case VIDIOC_S_STD:
650 {
651 v4l2_std_id *id = arg;
652 int update = state->radio || state->v4l2_std != *id;
653
654 state->v4l2_std = *id;
655 state->radio = 0;
656 if (update)
657 msp_wake_thread(client);
658 return 0;
659 }
660
661 case VIDIOC_INT_G_AUDIO_ROUTING:
662 {
663 struct v4l2_routing *rt = arg;
664
665 *rt = state->routing;
666 break;
667 }
668
669 case VIDIOC_INT_S_AUDIO_ROUTING:
670 {
671 struct v4l2_routing *rt = arg;
672 int tuner = (rt->input >> 3) & 1;
673 int sc_in = rt->input & 0x7;
674 int sc1_out = rt->output & 0xf;
675 int sc2_out = (rt->output >> 4) & 0xf;
676 u16 val, reg;
677
678 if (state->routing.input == rt->input &&
679 state->routing.output == rt->output)
680 break;
681 state->routing = *rt;
682 msp_set_scart(client, sc_in, 0);
683 msp_set_scart(client, sc1_out, 1);
684 msp_set_scart(client, sc2_out, 2);
685 msp_set_audmode(client);
686 reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb;
687 val = msp_read_dem(client, reg);
688 if (tuner != ((val >> 8) & 1)) {
689 msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8));
690 /* wake thread when a new tuner input is chosen */
691 msp_wake_thread(client);
692 }
693 break;
694 }
695
696 case VIDIOC_G_TUNER:
697 {
698 struct v4l2_tuner *vt = arg;
699
700 if (state->radio)
701 break;
702 if (state->opmode == OPMODE_AUTOSELECT)
703 msp_detect_stereo(client);
704 vt->audmode = state->audmode;
705 vt->rxsubchans = state->rxsubchans;
706 vt->capability |= V4L2_TUNER_CAP_STEREO |
707 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
708 break;
709 }
710
711 case VIDIOC_S_TUNER:
712 {
713 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
714
715 if (state->radio) /* TODO: add mono/stereo support for radio */
716 break;
717 if (state->audmode == vt->audmode)
718 break;
719 state->audmode = vt->audmode;
720 /* only set audmode */
721 msp_set_audmode(client);
722 break;
723 }
724
725 case VIDIOC_INT_I2S_CLOCK_FREQ:
726 {
727 u32 *a = (u32 *)arg;
728
729 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);
730
731 switch (*a) {
732 case 1024000:
733 state->i2s_mode = 0;
734 break;
735 case 2048000:
736 state->i2s_mode = 1;
737 break;
738 default:
739 return -EINVAL;
740 }
741 break;
742 }
743
744 case VIDIOC_QUERYCTRL:
745 {
746 struct v4l2_queryctrl *qc = arg;
747 int i;
748
749 for (i = 0; i < ARRAY_SIZE(msp_qctrl_std); i++)
750 if (qc->id && qc->id == msp_qctrl_std[i].id) {
751 memcpy(qc, &msp_qctrl_std[i], sizeof(*qc));
752 return 0;
753 }
754 if (!state->has_sound_processing)
755 return -EINVAL;
756 for (i = 0; i < ARRAY_SIZE(msp_qctrl_sound_processing); i++)
757 if (qc->id && qc->id == msp_qctrl_sound_processing[i].id) {
758 memcpy(qc, &msp_qctrl_sound_processing[i], sizeof(*qc));
759 return 0;
760 }
761 return -EINVAL;
762 }
763
764 case VIDIOC_G_CTRL:
765 return msp_get_ctrl(client, arg);
766
767 case VIDIOC_S_CTRL:
768 return msp_set_ctrl(client, arg);
769
770 case VIDIOC_LOG_STATUS:
771 {
772 const char *p;
773
774 if (state->opmode == OPMODE_AUTOSELECT)
775 msp_detect_stereo(client);
776 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
777 client->name, state->rev1, state->rev2);
778 v4l_info(client, "Audio: volume %d%s\n",
779 state->volume, state->muted ? " (muted)" : "");
780 if (state->has_sound_processing) {
781 v4l_info(client, "Audio: balance %d bass %d treble %d loudness %s\n",
782 state->balance, state->bass, state->treble,
783 state->loudness ? "on" : "off");
784 }
785 switch (state->mode) {
786 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
787 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
788 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono + FM-stereo"; break;
789 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
790 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
791 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
792 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
793 case MSP_MODE_BTSC: p = "BTSC"; break;
794 case MSP_MODE_EXTERN: p = "External input"; break;
795 default: p = "unknown"; break;
796 }
797 if (state->opmode == OPMODE_MANUAL) {
798 v4l_info(client, "Mode: %s (%s%s)\n", p,
799 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
800 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
801 } else {
802 if (state->opmode == OPMODE_AUTODETECT)
803 v4l_info(client, "Mode: %s\n", p);
804 v4l_info(client, "Standard: %s (%s%s)\n",
805 msp_standard_std_name(state->std),
806 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
807 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
808 }
809 v4l_info(client, "Audmode: 0x%04x\n", state->audmode);
810 v4l_info(client, "Routing: 0x%08x (input) 0x%08x (output)\n",
811 state->routing.input, state->routing.output);
812 v4l_info(client, "ACB: 0x%04x\n", state->acb);
813 break;
814 }
815
816 default:
817 /* unknown */
818 return -EINVAL;
819 }
820 return 0;
821 }
822
823 static int msp_suspend(struct device * dev, pm_message_t state)
824 {
825 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
826
827 v4l_dbg(1, msp_debug, client, "suspend\n");
828 msp_reset(client);
829 return 0;
830 }
831
832 static int msp_resume(struct device * dev)
833 {
834 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
835
836 v4l_dbg(1, msp_debug, client, "resume\n");
837 msp_wake_thread(client);
838 return 0;
839 }
840
841 /* ----------------------------------------------------------------------- */
842
843 static struct i2c_driver i2c_driver;
844
845 static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
846 {
847 struct i2c_client *client;
848 struct msp_state *state;
849 int (*thread_func)(void *data) = NULL;
850 int msp_hard;
851 int msp_family;
852 int msp_revision;
853 int msp_product, msp_prod_hi, msp_prod_lo;
854 int msp_rom;
855
856 client = kmalloc(sizeof(*client), GFP_KERNEL);
857 if (client == NULL)
858 return -ENOMEM;
859 memset(client, 0, sizeof(*client));
860 client->addr = address;
861 client->adapter = adapter;
862 client->driver = &i2c_driver;
863 snprintf(client->name, sizeof(client->name) - 1, "msp3400");
864
865 if (msp_reset(client) == -1) {
866 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
867 kfree(client);
868 return -1;
869 }
870
871 state = kmalloc(sizeof(*state), GFP_KERNEL);
872 if (state == NULL) {
873 kfree(client);
874 return -ENOMEM;
875 }
876 i2c_set_clientdata(client, state);
877
878 memset(state, 0, sizeof(*state));
879 state->v4l2_std = V4L2_STD_NTSC;
880 state->audmode = V4L2_TUNER_MODE_STEREO;
881 state->volume = 58880; /* 0db gain */
882 state->balance = 32768; /* 0db gain */
883 state->bass = 32768;
884 state->treble = 32768;
885 state->loudness = 0;
886 state->input = -1;
887 state->muted = 0;
888 state->i2s_mode = 0;
889 init_waitqueue_head(&state->wq);
890 /* These are the reset input/output positions */
891 state->routing.input = MSP_INPUT_DEFAULT;
892 state->routing.output = MSP_OUTPUT_DEFAULT;
893
894 state->rev1 = msp_read_dsp(client, 0x1e);
895 if (state->rev1 != -1)
896 state->rev2 = msp_read_dsp(client, 0x1f);
897 v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
898 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
899 v4l_dbg(1, msp_debug, client, "not an msp3400 (cannot read chip version)\n");
900 kfree(state);
901 kfree(client);
902 return -1;
903 }
904
905 msp_set_audio(client);
906
907 msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
908 msp_product = (state->rev2 >> 8) & 0xff;
909 msp_prod_hi = msp_product / 10;
910 msp_prod_lo = msp_product % 10;
911 msp_revision = (state->rev1 & 0x0f) + '@';
912 msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
913 msp_rom = state->rev2 & 0x1f;
914 snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
915 msp_family, msp_product,
916 msp_revision, msp_hard, msp_rom);
917
918 /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
919 state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
920 /* Has radio support: was added with revision G */
921 state->has_radio = msp_revision >= 'G';
922 /* Has headphones output: not for stripped down products */
923 state->has_headphones = msp_prod_lo < 5;
924 /* Has scart2 input: not in stripped down products of the '3' family */
925 state->has_scart2 = msp_family >= 4 || msp_prod_lo < 7;
926 /* Has scart3 input: not in stripped down products of the '3' family */
927 state->has_scart3 = msp_family >= 4 || msp_prod_lo < 5;
928 /* Has scart4 input: not in pre D revisions, not in stripped D revs */
929 state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
930 /* Has scart2 output: not in stripped down products of the '3' family */
931 state->has_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
932 /* Has scart2 a volume control? Not in pre-D revisions. */
933 state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart2_out;
934 /* Has a configurable i2s out? */
935 state->has_i2s_conf = msp_revision >= 'G' && msp_prod_lo < 7;
936 /* Has subwoofer output: not in pre-D revs and not in stripped down products */
937 state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
938 /* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
939 stripped down products */
940 state->has_sound_processing = msp_prod_lo < 7;
941 /* Has Virtual Dolby Surround: only in msp34x1 */
942 state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
943 /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
944 state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;
945
946 state->opmode = opmode;
947 if (state->opmode == OPMODE_AUTO) {
948 /* MSP revision G and up have both autodetect and autoselect */
949 if (msp_revision >= 'G')
950 state->opmode = OPMODE_AUTOSELECT;
951 /* MSP revision D and up have autodetect */
952 else if (msp_revision >= 'D')
953 state->opmode = OPMODE_AUTODETECT;
954 else
955 state->opmode = OPMODE_MANUAL;
956 }
957
958 /* hello world :-) */
959 v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
960 v4l_info(client, "%s ", client->name);
961 if (state->has_nicam && state->has_radio)
962 printk("supports nicam and radio, ");
963 else if (state->has_nicam)
964 printk("supports nicam, ");
965 else if (state->has_radio)
966 printk("supports radio, ");
967 printk("mode is ");
968
969 /* version-specific initialization */
970 switch (state->opmode) {
971 case OPMODE_MANUAL:
972 printk("manual");
973 thread_func = msp3400c_thread;
974 break;
975 case OPMODE_AUTODETECT:
976 printk("autodetect");
977 thread_func = msp3410d_thread;
978 break;
979 case OPMODE_AUTOSELECT:
980 printk("autodetect and autoselect");
981 thread_func = msp34xxg_thread;
982 break;
983 }
984 printk("\n");
985
986 /* startup control thread if needed */
987 if (thread_func) {
988 state->kthread = kthread_run(thread_func, client, "msp34xx");
989
990 if (state->kthread == NULL)
991 v4l_warn(client, "kernel_thread() failed\n");
992 msp_wake_thread(client);
993 }
994
995 /* done */
996 i2c_attach_client(client);
997
998 return 0;
999 }
1000
1001 static int msp_probe(struct i2c_adapter *adapter)
1002 {
1003 if (adapter->class & I2C_CLASS_TV_ANALOG)
1004 return i2c_probe(adapter, &addr_data, msp_attach);
1005 return 0;
1006 }
1007
1008 static int msp_detach(struct i2c_client *client)
1009 {
1010 struct msp_state *state = i2c_get_clientdata(client);
1011 int err;
1012
1013 /* shutdown control thread */
1014 if (state->kthread) {
1015 state->restart = 1;
1016 kthread_stop(state->kthread);
1017 }
1018 msp_reset(client);
1019
1020 err = i2c_detach_client(client);
1021 if (err) {
1022 return err;
1023 }
1024
1025 kfree(state);
1026 kfree(client);
1027 return 0;
1028 }
1029
1030 /* ----------------------------------------------------------------------- */
1031
1032 /* i2c implementation */
1033 static struct i2c_driver i2c_driver = {
1034 .id = I2C_DRIVERID_MSP3400,
1035 .attach_adapter = msp_probe,
1036 .detach_client = msp_detach,
1037 .command = msp_command,
1038 .driver = {
1039 .name = "msp3400",
1040 .suspend = msp_suspend,
1041 .resume = msp_resume,
1042 },
1043 };
1044
1045 static int __init msp3400_init_module(void)
1046 {
1047 return i2c_add_driver(&i2c_driver);
1048 }
1049
1050 static void __exit msp3400_cleanup_module(void)
1051 {
1052 i2c_del_driver(&i2c_driver);
1053 }
1054
1055 module_init(msp3400_init_module);
1056 module_exit(msp3400_cleanup_module);
1057
1058 /*
1059 * Overrides for Emacs so that we follow Linus's tabbing style.
1060 * ---------------------------------------------------------------------------
1061 * Local variables:
1062 * c-basic-offset: 8
1063 * End:
1064 */
Linux with added FPC-III support