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V4L/DVB (3662): Don't set msp3400c-non-existent register
[linux-2.6/btrfs-unstable.git] / drivers / media / video / msp3400-driver.c
blob12a83ec7872ce83a625b632ad5ebf53916d23431
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_mute(struct i2c_client *client)
287 {
288 struct msp_state *state = i2c_get_clientdata(client);
289
290 v4l_dbg(1, msp_debug, client, "mute audio\n");
291 msp_write_dsp(client, 0x0000, 0);
292 msp_write_dsp(client, 0x0007, 1);
293 if (state->has_scart2_out_volume)
294 msp_write_dsp(client, 0x0040, 1);
295 if (state->has_headphones)
296 msp_write_dsp(client, 0x0006, 0);
297 }
298
299 void msp_set_audio(struct i2c_client *client)
300 {
301 struct msp_state *state = i2c_get_clientdata(client);
302 int bal = 0, bass, treble, loudness;
303 int val = 0;
304
305 if (!state->muted)
306 val = (state->volume * 0x7f / 65535) << 8;
307
308 v4l_dbg(1, msp_debug, client, "mute=%s volume=%d\n",
309 state->muted ? "on" : "off", state->volume);
310
311 msp_write_dsp(client, 0x0000, val);
312 msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1));
313 if (state->has_scart2_out_volume)
314 msp_write_dsp(client, 0x0040, state->muted ? 0x1 : (val | 0x1));
315 if (state->has_headphones)
316 msp_write_dsp(client, 0x0006, val);
317 if (!state->has_sound_processing)
318 return;
319
320 if (val)
321 bal = (u8)((state->balance / 256) - 128);
322 bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
323 treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
324 loudness = state->loudness ? ((5 * 4) << 8) : 0;
325
326 v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
327 state->balance, state->bass, state->treble, state->loudness);
328
329 msp_write_dsp(client, 0x0001, bal << 8);
330 msp_write_dsp(client, 0x0002, bass);
331 msp_write_dsp(client, 0x0003, treble);
332 msp_write_dsp(client, 0x0004, loudness);
333 if (!state->has_headphones)
334 return;
335 msp_write_dsp(client, 0x0030, bal << 8);
336 msp_write_dsp(client, 0x0031, bass);
337 msp_write_dsp(client, 0x0032, treble);
338 msp_write_dsp(client, 0x0033, loudness);
339 }
340
341 /* ------------------------------------------------------------------------ */
342
343
344 static void msp_wake_thread(struct i2c_client *client)
345 {
346 struct msp_state *state = i2c_get_clientdata(client);
347
348 if (NULL == state->kthread)
349 return;
350 msp_set_mute(client);
351 state->watch_stereo = 0;
352 state->restart = 1;
353 wake_up_interruptible(&state->wq);
354 }
355
356 int msp_sleep(struct msp_state *state, int timeout)
357 {
358 DECLARE_WAITQUEUE(wait, current);
359
360 add_wait_queue(&state->wq, &wait);
361 if (!kthread_should_stop()) {
362 if (timeout < 0) {
363 set_current_state(TASK_INTERRUPTIBLE);
364 schedule();
365 } else {
366 schedule_timeout_interruptible
367 (msecs_to_jiffies(timeout));
368 }
369 }
370
371 remove_wait_queue(&state->wq, &wait);
372 try_to_freeze();
373 return state->restart;
374 }
375
376 /* ------------------------------------------------------------------------ */
377
378 static int msp_mode_v4l2_to_v4l1(int rxsubchans)
379 {
380 int mode = 0;
381
382 if (rxsubchans & V4L2_TUNER_SUB_STEREO)
383 mode |= VIDEO_SOUND_STEREO;
384 if (rxsubchans & V4L2_TUNER_SUB_LANG2)
385 mode |= VIDEO_SOUND_LANG2 | VIDEO_SOUND_STEREO;
386 if (rxsubchans & V4L2_TUNER_SUB_LANG1)
387 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_STEREO;
388 if (mode == 0)
389 mode |= VIDEO_SOUND_MONO;
390 return mode;
391 }
392
393 static int msp_mode_v4l1_to_v4l2(int mode)
394 {
395 if (mode & VIDEO_SOUND_STEREO)
396 return V4L2_TUNER_MODE_STEREO;
397 if (mode & VIDEO_SOUND_LANG2)
398 return V4L2_TUNER_MODE_LANG2;
399 if (mode & VIDEO_SOUND_LANG1)
400 return V4L2_TUNER_MODE_LANG1;
401 return V4L2_TUNER_MODE_MONO;
402 }
403
404 static struct v4l2_queryctrl msp_qctrl_std[] = {
405 {
406 .id = V4L2_CID_AUDIO_VOLUME,
407 .name = "Volume",
408 .minimum = 0,
409 .maximum = 65535,
410 .step = 65535/100,
411 .default_value = 58880,
412 .flags = 0,
413 .type = V4L2_CTRL_TYPE_INTEGER,
414 },{
415 .id = V4L2_CID_AUDIO_MUTE,
416 .name = "Mute",
417 .minimum = 0,
418 .maximum = 1,
419 .step = 1,
420 .default_value = 1,
421 .flags = 0,
422 .type = V4L2_CTRL_TYPE_BOOLEAN,
423 },
424 };
425
426 static struct v4l2_queryctrl msp_qctrl_sound_processing[] = {
427 {
428 .id = V4L2_CID_AUDIO_BALANCE,
429 .name = "Balance",
430 .minimum = 0,
431 .maximum = 65535,
432 .step = 65535/100,
433 .default_value = 32768,
434 .flags = 0,
435 .type = V4L2_CTRL_TYPE_INTEGER,
436 },{
437 .id = V4L2_CID_AUDIO_BASS,
438 .name = "Bass",
439 .minimum = 0,
440 .maximum = 65535,
441 .step = 65535/100,
442 .default_value = 32768,
443 .type = V4L2_CTRL_TYPE_INTEGER,
444 },{
445 .id = V4L2_CID_AUDIO_TREBLE,
446 .name = "Treble",
447 .minimum = 0,
448 .maximum = 65535,
449 .step = 65535/100,
450 .default_value = 32768,
451 .type = V4L2_CTRL_TYPE_INTEGER,
452 },{
453 .id = V4L2_CID_AUDIO_LOUDNESS,
454 .name = "Loudness",
455 .minimum = 0,
456 .maximum = 1,
457 .step = 1,
458 .default_value = 1,
459 .flags = 0,
460 .type = V4L2_CTRL_TYPE_BOOLEAN,
461 },
462 };
463
464
465 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
466 {
467 struct msp_state *state = i2c_get_clientdata(client);
468
469 switch (ctrl->id) {
470 case V4L2_CID_AUDIO_VOLUME:
471 ctrl->value = state->volume;
472 break;
473
474 case V4L2_CID_AUDIO_MUTE:
475 ctrl->value = state->muted;
476 break;
477
478 case V4L2_CID_AUDIO_BALANCE:
479 if (!state->has_sound_processing)
480 return -EINVAL;
481 ctrl->value = state->balance;
482 break;
483
484 case V4L2_CID_AUDIO_BASS:
485 if (!state->has_sound_processing)
486 return -EINVAL;
487 ctrl->value = state->bass;
488 break;
489
490 case V4L2_CID_AUDIO_TREBLE:
491 if (!state->has_sound_processing)
492 return -EINVAL;
493 ctrl->value = state->treble;
494 break;
495
496 case V4L2_CID_AUDIO_LOUDNESS:
497 if (!state->has_sound_processing)
498 return -EINVAL;
499 ctrl->value = state->loudness;
500 break;
501
502 default:
503 return -EINVAL;
504 }
505 return 0;
506 }
507
508 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
509 {
510 struct msp_state *state = i2c_get_clientdata(client);
511
512 switch (ctrl->id) {
513 case V4L2_CID_AUDIO_VOLUME:
514 state->volume = ctrl->value;
515 if (state->volume == 0)
516 state->balance = 32768;
517 break;
518
519 case V4L2_CID_AUDIO_MUTE:
520 if (ctrl->value < 0 || ctrl->value >= 2)
521 return -ERANGE;
522 state->muted = ctrl->value;
523 break;
524
525 case V4L2_CID_AUDIO_BASS:
526 if (!state->has_sound_processing)
527 return -EINVAL;
528 state->bass = ctrl->value;
529 break;
530
531 case V4L2_CID_AUDIO_TREBLE:
532 if (!state->has_sound_processing)
533 return -EINVAL;
534 state->treble = ctrl->value;
535 break;
536
537 case V4L2_CID_AUDIO_LOUDNESS:
538 if (!state->has_sound_processing)
539 return -EINVAL;
540 state->loudness = ctrl->value;
541 break;
542
543 case V4L2_CID_AUDIO_BALANCE:
544 if (!state->has_sound_processing)
545 return -EINVAL;
546 state->balance = ctrl->value;
547 break;
548
549 default:
550 return -EINVAL;
551 }
552 msp_set_audio(client);
553 return 0;
554 }
555
556 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
557 {
558 struct msp_state *state = i2c_get_clientdata(client);
559
560 if (msp_debug >= 2)
561 v4l_i2c_print_ioctl(client, cmd);
562
563 switch (cmd) {
564 case AUDC_SET_RADIO:
565 if (state->radio)
566 return 0;
567 state->radio = 1;
568 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
569 state->watch_stereo = 0;
570 switch (state->opmode) {
571 case OPMODE_MANUAL:
572 /* set msp3400 to FM radio mode */
573 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
574 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
575 MSP_CARRIER(10.7));
576 msp_set_audio(client);
577 break;
578 case OPMODE_AUTODETECT:
579 case OPMODE_AUTOSELECT:
580 /* the thread will do for us */
581 msp_wake_thread(client);
582 break;
583 }
584 break;
585
586 /* --- v4l ioctls --- */
587 /* take care: bttv does userspace copying, we'll get a
588 kernel pointer here... */
589 case VIDIOCGAUDIO:
590 {
591 struct video_audio *va = arg;
592
593 va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE;
594 if (state->has_sound_processing)
595 va->flags |= VIDEO_AUDIO_BALANCE |
596 VIDEO_AUDIO_BASS |
597 VIDEO_AUDIO_TREBLE;
598 if (state->muted)
599 va->flags |= VIDEO_AUDIO_MUTE;
600 va->volume = state->volume;
601 va->balance = state->volume ? state->balance : 32768;
602 va->bass = state->bass;
603 va->treble = state->treble;
604
605 if (state->radio)
606 break;
607 if (state->opmode == OPMODE_AUTOSELECT)
608 msp_detect_stereo(client);
609 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans);
610 break;
611 }
612
613 case VIDIOCSAUDIO:
614 {
615 struct video_audio *va = arg;
616
617 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
618 state->volume = va->volume;
619 state->balance = va->balance;
620 state->bass = va->bass;
621 state->treble = va->treble;
622 msp_set_audio(client);
623
624 if (va->mode != 0 && state->radio == 0) {
625 state->audmode = msp_mode_v4l1_to_v4l2(va->mode);
626 msp_set_audmode(client);
627 }
628 break;
629 }
630
631 case VIDIOCSCHAN:
632 {
633 struct video_channel *vc = arg;
634 int update = 0;
635 v4l2_std_id std;
636
637 if (state->radio)
638 update = 1;
639 state->radio = 0;
640 if (vc->norm == VIDEO_MODE_PAL)
641 std = V4L2_STD_PAL;
642 else if (vc->norm == VIDEO_MODE_SECAM)
643 std = V4L2_STD_SECAM;
644 else
645 std = V4L2_STD_NTSC;
646 if (std != state->v4l2_std) {
647 state->v4l2_std = std;
648 update = 1;
649 }
650 if (update)
651 msp_wake_thread(client);
652 break;
653 }
654
655 case VIDIOCSFREQ:
656 case VIDIOC_S_FREQUENCY:
657 {
658 /* new channel -- kick audio carrier scan */
659 msp_wake_thread(client);
660 break;
661 }
662
663 /* --- v4l2 ioctls --- */
664 case VIDIOC_S_STD:
665 {
666 v4l2_std_id *id = arg;
667 int update = state->radio || state->v4l2_std != *id;
668
669 state->v4l2_std = *id;
670 state->radio = 0;
671 if (update)
672 msp_wake_thread(client);
673 return 0;
674 }
675
676 case VIDIOC_INT_G_AUDIO_ROUTING:
677 {
678 struct v4l2_routing *rt = arg;
679
680 *rt = state->routing;
681 break;
682 }
683
684 case VIDIOC_INT_S_AUDIO_ROUTING:
685 {
686 struct v4l2_routing *rt = arg;
687 int tuner = (rt->input >> 3) & 1;
688 int sc_in = rt->input & 0x7;
689 int sc1_out = rt->output & 0xf;
690 int sc2_out = (rt->output >> 4) & 0xf;
691 u16 val;
692
693 state->routing = *rt;
694 if (state->opmode == OPMODE_AUTOSELECT) {
695 val = msp_read_dem(client, 0x30) & ~0x100;
696 msp_write_dem(client, 0x30, val | (tuner ? 0x100 : 0));
697 } else {
698 val = msp_read_dem(client, 0xbb) & ~0x100;
699 msp_write_dem(client, 0xbb, val | (tuner ? 0x100 : 0));
700 }
701 msp_set_scart(client, sc_in, 0);
702 msp_set_scart(client, sc1_out, 1);
703 msp_set_scart(client, sc2_out, 2);
704 msp_set_audmode(client);
705 msp_wake_thread(client);
706 break;
707 }
708
709 case VIDIOC_G_TUNER:
710 {
711 struct v4l2_tuner *vt = arg;
712
713 if (state->radio)
714 break;
715 if (state->opmode == OPMODE_AUTOSELECT)
716 msp_detect_stereo(client);
717 vt->audmode = state->audmode;
718 vt->rxsubchans = state->rxsubchans;
719 vt->capability = V4L2_TUNER_CAP_STEREO |
720 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
721 break;
722 }
723
724 case VIDIOC_S_TUNER:
725 {
726 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
727
728 if (state->radio) /* TODO: add mono/stereo support for radio */
729 break;
730 state->audmode = vt->audmode;
731 /* only set audmode */
732 msp_set_audmode(client);
733 break;
734 }
735
736 case VIDIOC_INT_I2S_CLOCK_FREQ:
737 {
738 u32 *a = (u32 *)arg;
739
740 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);
741
742 switch (*a) {
743 case 1024000:
744 state->i2s_mode = 0;
745 break;
746 case 2048000:
747 state->i2s_mode = 1;
748 break;
749 default:
750 return -EINVAL;
751 }
752 break;
753 }
754
755 case VIDIOC_QUERYCTRL:
756 {
757 struct v4l2_queryctrl *qc = arg;
758 int i;
759
760 for (i = 0; i < ARRAY_SIZE(msp_qctrl_std); i++)
761 if (qc->id && qc->id == msp_qctrl_std[i].id) {
762 memcpy(qc, &msp_qctrl_std[i], sizeof(*qc));
763 return 0;
764 }
765 if (!state->has_sound_processing)
766 return -EINVAL;
767 for (i = 0; i < ARRAY_SIZE(msp_qctrl_sound_processing); i++)
768 if (qc->id && qc->id == msp_qctrl_sound_processing[i].id) {
769 memcpy(qc, &msp_qctrl_sound_processing[i], sizeof(*qc));
770 return 0;
771 }
772 return -EINVAL;
773 }
774
775 case VIDIOC_G_CTRL:
776 return msp_get_ctrl(client, arg);
777
778 case VIDIOC_S_CTRL:
779 return msp_set_ctrl(client, arg);
780
781 case VIDIOC_LOG_STATUS:
782 {
783 const char *p;
784
785 if (state->opmode == OPMODE_AUTOSELECT)
786 msp_detect_stereo(client);
787 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
788 client->name, state->rev1, state->rev2);
789 v4l_info(client, "Audio: volume %d%s\n",
790 state->volume, state->muted ? " (muted)" : "");
791 if (state->has_sound_processing) {
792 v4l_info(client, "Audio: balance %d bass %d treble %d loudness %s\n",
793 state->balance, state->bass, state->treble,
794 state->loudness ? "on" : "off");
795 }
796 switch (state->mode) {
797 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
798 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
799 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono + FM-stereo"; break;
800 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
801 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
802 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
803 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
804 case MSP_MODE_BTSC: p = "BTSC"; break;
805 case MSP_MODE_EXTERN: p = "External input"; break;
806 default: p = "unknown"; break;
807 }
808 if (state->opmode == OPMODE_MANUAL) {
809 v4l_info(client, "Mode: %s (%s%s)\n", p,
810 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
811 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
812 } else {
813 if (state->opmode == OPMODE_AUTODETECT)
814 v4l_info(client, "Mode: %s\n", p);
815 v4l_info(client, "Standard: %s (%s%s)\n",
816 msp_standard_std_name(state->std),
817 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
818 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
819 }
820 v4l_info(client, "Audmode: 0x%04x\n", state->audmode);
821 v4l_info(client, "Routing: 0x%08x (input) 0x%08x (output)\n",
822 state->routing.input, state->routing.output);
823 v4l_info(client, "ACB: 0x%04x\n", state->acb);
824 break;
825 }
826
827 default:
828 /* unknown */
829 return -EINVAL;
830 }
831 return 0;
832 }
833
834 static int msp_suspend(struct device * dev, pm_message_t state)
835 {
836 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
837
838 v4l_dbg(1, msp_debug, client, "suspend\n");
839 msp_reset(client);
840 return 0;
841 }
842
843 static int msp_resume(struct device * dev)
844 {
845 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
846
847 v4l_dbg(1, msp_debug, client, "resume\n");
848 msp_wake_thread(client);
849 return 0;
850 }
851
852 /* ----------------------------------------------------------------------- */
853
854 static struct i2c_driver i2c_driver;
855
856 static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
857 {
858 struct i2c_client *client;
859 struct msp_state *state;
860 int (*thread_func)(void *data) = NULL;
861 int msp_hard;
862 int msp_family;
863 int msp_revision;
864 int msp_product, msp_prod_hi, msp_prod_lo;
865 int msp_rom;
866
867 client = kmalloc(sizeof(*client), GFP_KERNEL);
868 if (client == NULL)
869 return -ENOMEM;
870 memset(client, 0, sizeof(*client));
871 client->addr = address;
872 client->adapter = adapter;
873 client->driver = &i2c_driver;
874 snprintf(client->name, sizeof(client->name) - 1, "msp3400");
875
876 if (msp_reset(client) == -1) {
877 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
878 kfree(client);
879 return -1;
880 }
881
882 state = kmalloc(sizeof(*state), GFP_KERNEL);
883 if (state == NULL) {
884 kfree(client);
885 return -ENOMEM;
886 }
887 i2c_set_clientdata(client, state);
888
889 memset(state, 0, sizeof(*state));
890 state->v4l2_std = V4L2_STD_NTSC;
891 state->audmode = V4L2_TUNER_MODE_LANG1;
892 state->volume = 58880; /* 0db gain */
893 state->balance = 32768; /* 0db gain */
894 state->bass = 32768;
895 state->treble = 32768;
896 state->loudness = 0;
897 state->input = -1;
898 state->muted = 0;
899 state->i2s_mode = 0;
900 init_waitqueue_head(&state->wq);
901 /* These are the reset input/output positions */
902 state->routing.input = MSP_INPUT_DEFAULT;
903 state->routing.output = MSP_OUTPUT_DEFAULT;
904
905 state->rev1 = msp_read_dsp(client, 0x1e);
906 if (state->rev1 != -1)
907 state->rev2 = msp_read_dsp(client, 0x1f);
908 v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
909 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
910 v4l_dbg(1, msp_debug, client, "not an msp3400 (cannot read chip version)\n");
911 kfree(state);
912 kfree(client);
913 return -1;
914 }
915
916 msp_set_audio(client);
917
918 msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
919 msp_product = (state->rev2 >> 8) & 0xff;
920 msp_prod_hi = msp_product / 10;
921 msp_prod_lo = msp_product % 10;
922 msp_revision = (state->rev1 & 0x0f) + '@';
923 msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
924 msp_rom = state->rev2 & 0x1f;
925 snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
926 msp_family, msp_product,
927 msp_revision, msp_hard, msp_rom);
928
929 /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
930 state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
931 /* Has radio support: was added with revision G */
932 state->has_radio = msp_revision >= 'G';
933 /* Has headphones output: not for stripped down products */
934 state->has_headphones = msp_prod_lo < 5;
935 /* Has scart4 input: not in pre D revisions, not in stripped D revs */
936 state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
937 /* Has scart2 and scart3 inputs and scart2 output: not in stripped
938 down products of the '3' family */
939 state->has_scart23_in_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
940 /* Has scart2 a volume control? Not in pre-D revisions. */
941 state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart23_in_scart2_out;
942 /* Has a configurable i2s out? */
943 state->has_i2s_conf = msp_revision >= 'G' && msp_prod_lo < 7;
944 /* Has subwoofer output: not in pre-D revs and not in stripped down products */
945 state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
946 /* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
947 stripped down products */
948 state->has_sound_processing = msp_prod_lo < 7;
949 /* Has Virtual Dolby Surround: only in msp34x1 */
950 state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
951 /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
952 state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;
953
954 state->opmode = opmode;
955 if (state->opmode == OPMODE_AUTO) {
956 /* MSP revision G and up have both autodetect and autoselect */
957 if (msp_revision >= 'G')
958 state->opmode = OPMODE_AUTOSELECT;
959 /* MSP revision D and up have autodetect */
960 else if (msp_revision >= 'D')
961 state->opmode = OPMODE_AUTODETECT;
962 else
963 state->opmode = OPMODE_MANUAL;
964 }
965
966 /* hello world :-) */
967 v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
968 v4l_info(client, "%s ", client->name);
969 if (state->has_nicam && state->has_radio)
970 printk("supports nicam and radio, ");
971 else if (state->has_nicam)
972 printk("supports nicam, ");
973 else if (state->has_radio)
974 printk("supports radio, ");
975 printk("mode is ");
976
977 /* version-specific initialization */
978 switch (state->opmode) {
979 case OPMODE_MANUAL:
980 printk("manual");
981 thread_func = msp3400c_thread;
982 break;
983 case OPMODE_AUTODETECT:
984 printk("autodetect");
985 thread_func = msp3410d_thread;
986 break;
987 case OPMODE_AUTOSELECT:
988 printk("autodetect and autoselect");
989 thread_func = msp34xxg_thread;
990 break;
991 }
992 printk("\n");
993
994 /* startup control thread if needed */
995 if (thread_func) {
996 state->kthread = kthread_run(thread_func, client, "msp34xx");
997
998 if (state->kthread == NULL)
999 v4l_warn(client, "kernel_thread() failed\n");
1000 msp_wake_thread(client);
1001 }
1002
1003 /* done */
1004 i2c_attach_client(client);
1005
1006 return 0;
1007 }
1008
1009 static int msp_probe(struct i2c_adapter *adapter)
1010 {
1011 if (adapter->class & I2C_CLASS_TV_ANALOG)
1012 return i2c_probe(adapter, &addr_data, msp_attach);
1013 return 0;
1014 }
1015
1016 static int msp_detach(struct i2c_client *client)
1017 {
1018 struct msp_state *state = i2c_get_clientdata(client);
1019 int err;
1020
1021 /* shutdown control thread */
1022 if (state->kthread) {
1023 state->restart = 1;
1024 kthread_stop(state->kthread);
1025 }
1026 msp_reset(client);
1027
1028 err = i2c_detach_client(client);
1029 if (err) {
1030 return err;
1031 }
1032
1033 kfree(state);
1034 kfree(client);
1035 return 0;
1036 }
1037
1038 /* ----------------------------------------------------------------------- */
1039
1040 /* i2c implementation */
1041 static struct i2c_driver i2c_driver = {
1042 .id = I2C_DRIVERID_MSP3400,
1043 .attach_adapter = msp_probe,
1044 .detach_client = msp_detach,
1045 .command = msp_command,
1046 .driver = {
1047 .name = "msp3400",
1048 .suspend = msp_suspend,
1049 .resume = msp_resume,
1050 },
1051 };
1052
1053 static int __init msp3400_init_module(void)
1054 {
1055 return i2c_add_driver(&i2c_driver);
1056 }
1057
1058 static void __exit msp3400_cleanup_module(void)
1059 {
1060 i2c_del_driver(&i2c_driver);
1061 }
1062
1063 module_init(msp3400_init_module);
1064 module_exit(msp3400_cleanup_module);
1065
1066 /*
1067 * Overrides for Emacs so that we follow Linus's tabbing style.
1068 * ---------------------------------------------------------------------------
1069 * Local variables:
1070 * c-basic-offset: 8
1071 * End:
1072 */
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