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revert-mm-fix-blkdev-size-calculation-in-generic_write_checks
[linux-2.6/linux-trees-mm.git] / drivers / media / video / msp3400-driver.c
blobf4c14604b0b9c855851e38af460a343a63a49ab2
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/v4l2-i2c-drv-legacy.h>
57 #include <media/tvaudio.h>
58 #include <media/msp3400.h>
59 #include <linux/kthread.h>
60 #include <linux/freezer.h>
61 #include "msp3400-driver.h"
62
63 /* ---------------------------------------------------------------------- */
64
65 MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
66 MODULE_AUTHOR("Gerd Knorr");
67 MODULE_LICENSE("GPL");
68
69 /* module parameters */
70 static int opmode = OPMODE_AUTO;
71 int msp_debug; /* msp_debug output */
72 int msp_once; /* no continous stereo monitoring */
73 int msp_amsound; /* hard-wire AM sound at 6.5 Hz (france),
74 the autoscan seems work well only with FM... */
75 int msp_standard = 1; /* Override auto detect of audio msp_standard, if needed. */
76 int msp_dolby;
77
78 int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual
79 (msp34xxg only) 0x00a0-0x03c0 */
80
81 /* read-only */
82 module_param(opmode, int, 0444);
83
84 /* read-write */
85 module_param_named(once,msp_once, bool, 0644);
86 module_param_named(debug,msp_debug, int, 0644);
87 module_param_named(stereo_threshold,msp_stereo_thresh, int, 0644);
88 module_param_named(standard,msp_standard, int, 0644);
89 module_param_named(amsound,msp_amsound, bool, 0644);
90 module_param_named(dolby,msp_dolby, bool, 0644);
91
92 MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
93 MODULE_PARM_DESC(once, "No continuous stereo monitoring");
94 MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
95 MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
96 MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
97 MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
98 MODULE_PARM_DESC(dolby, "Activates Dolby processsing");
99
100 /* ---------------------------------------------------------------------- */
101
102 /* control subaddress */
103 #define I2C_MSP_CONTROL 0x00
104 /* demodulator unit subaddress */
105 #define I2C_MSP_DEM 0x10
106 /* DSP unit subaddress */
107 #define I2C_MSP_DSP 0x12
108
109 /* Addresses to scan */
110 static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END };
111 I2C_CLIENT_INSMOD;
112
113 /* ----------------------------------------------------------------------- */
114 /* functions for talking to the MSP3400C Sound processor */
115
116 int msp_reset(struct i2c_client *client)
117 {
118 /* reset and read revision code */
119 static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
120 static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 };
121 static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e };
122 u8 read[2];
123 struct i2c_msg reset[2] = {
124 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
125 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on },
126 };
127 struct i2c_msg test[2] = {
128 { client->addr, 0, 3, write },
129 { client->addr, I2C_M_RD, 2, read },
130 };
131
132 v4l_dbg(3, msp_debug, client, "msp_reset\n");
133 if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
134 i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
135 i2c_transfer(client->adapter, test, 2) != 2) {
136 v4l_err(client, "chip reset failed\n");
137 return -1;
138 }
139 return 0;
140 }
141
142 static int msp_read(struct i2c_client *client, int dev, int addr)
143 {
144 int err, retval;
145 u8 write[3];
146 u8 read[2];
147 struct i2c_msg msgs[2] = {
148 { client->addr, 0, 3, write },
149 { client->addr, I2C_M_RD, 2, read }
150 };
151
152 write[0] = dev + 1;
153 write[1] = addr >> 8;
154 write[2] = addr & 0xff;
155
156 for (err = 0; err < 3; err++) {
157 if (i2c_transfer(client->adapter, msgs, 2) == 2)
158 break;
159 v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
160 dev, addr);
161 schedule_timeout_interruptible(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 schedule_timeout_interruptible(msecs_to_jiffies(10));
201 }
202 if (err == 3) {
203 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
204 msp_reset(client);
205 return -1;
206 }
207 return 0;
208 }
209
210 int msp_write_dem(struct i2c_client *client, int addr, int val)
211 {
212 return msp_write(client, I2C_MSP_DEM, addr, val);
213 }
214
215 int msp_write_dsp(struct i2c_client *client, int addr, int val)
216 {
217 return msp_write(client, I2C_MSP_DSP, addr, val);
218 }
219
220 /* ----------------------------------------------------------------------- *
221 * bits 9 8 5 - SCART DSP input Select:
222 * 0 0 0 - SCART 1 to DSP input (reset position)
223 * 0 1 0 - MONO to DSP input
224 * 1 0 0 - SCART 2 to DSP input
225 * 1 1 1 - Mute DSP input
226 *
227 * bits 11 10 6 - SCART 1 Output Select:
228 * 0 0 0 - undefined (reset position)
229 * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
230 * 1 0 0 - MONO input to SCART 1 Output
231 * 1 1 0 - SCART 1 DA to SCART 1 Output
232 * 0 0 1 - SCART 2 DA to SCART 1 Output
233 * 0 1 1 - SCART 1 Input to SCART 1 Output
234 * 1 1 1 - Mute SCART 1 Output
235 *
236 * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART):
237 * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position)
238 * 0 1 0 - SCART 1 Input to SCART 2 Output
239 * 1 0 0 - MONO input to SCART 2 Output
240 * 0 0 1 - SCART 2 DA to SCART 2 Output
241 * 0 1 1 - SCART 2 Input to SCART 2 Output
242 * 1 1 0 - Mute SCART 2 Output
243 *
244 * Bits 4 to 0 should be zero.
245 * ----------------------------------------------------------------------- */
246
247 static int scarts[3][9] = {
248 /* MASK IN1 IN2 IN3 IN4 IN1_DA IN2_DA MONO MUTE */
249 /* SCART DSP Input select */
250 { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1, -1, 0x0100, 0x0320 },
251 /* SCART1 Output select */
252 { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 },
253 /* SCART2 Output select */
254 { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 },
255 };
256
257 static char *scart_names[] = {
258 "in1", "in2", "in3", "in4", "in1 da", "in2 da", "mono", "mute"
259 };
260
261 void msp_set_scart(struct i2c_client *client, int in, int out)
262 {
263 struct msp_state *state = i2c_get_clientdata(client);
264
265 state->in_scart = in;
266
267 if (in >= 0 && in <= 7 && out >= 0 && out <= 2) {
268 if (-1 == scarts[out][in + 1])
269 return;
270
271 state->acb &= ~scarts[out][0];
272 state->acb |= scarts[out][in + 1];
273 } else
274 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
275
276 v4l_dbg(1, msp_debug, client, "scart switch: %s => %d (ACB=0x%04x)\n",
277 scart_names[in], out, state->acb);
278 msp_write_dsp(client, 0x13, state->acb);
279
280 /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
281 if (state->has_i2s_conf)
282 msp_write_dem(client, 0x40, state->i2s_mode);
283 }
284
285 void msp_set_audio(struct i2c_client *client)
286 {
287 struct msp_state *state = i2c_get_clientdata(client);
288 int bal = 0, bass, treble, loudness;
289 int val = 0;
290 int reallymuted = state->muted | state->scan_in_progress;
291
292 if (!reallymuted)
293 val = (state->volume * 0x7f / 65535) << 8;
294
295 v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n",
296 state->muted ? "on" : "off", state->scan_in_progress ? "yes" : "no",
297 state->volume);
298
299 msp_write_dsp(client, 0x0000, val);
300 msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1));
301 if (state->has_scart2_out_volume)
302 msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1));
303 if (state->has_headphones)
304 msp_write_dsp(client, 0x0006, val);
305 if (!state->has_sound_processing)
306 return;
307
308 if (val)
309 bal = (u8)((state->balance / 256) - 128);
310 bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
311 treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
312 loudness = state->loudness ? ((5 * 4) << 8) : 0;
313
314 v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
315 state->balance, state->bass, state->treble, state->loudness);
316
317 msp_write_dsp(client, 0x0001, bal << 8);
318 msp_write_dsp(client, 0x0002, bass);
319 msp_write_dsp(client, 0x0003, treble);
320 msp_write_dsp(client, 0x0004, loudness);
321 if (!state->has_headphones)
322 return;
323 msp_write_dsp(client, 0x0030, bal << 8);
324 msp_write_dsp(client, 0x0031, bass);
325 msp_write_dsp(client, 0x0032, treble);
326 msp_write_dsp(client, 0x0033, loudness);
327 }
328
329 /* ------------------------------------------------------------------------ */
330
331
332 static void msp_wake_thread(struct i2c_client *client)
333 {
334 struct msp_state *state = i2c_get_clientdata(client);
335
336 if (NULL == state->kthread)
337 return;
338 state->watch_stereo = 0;
339 state->restart = 1;
340 wake_up_interruptible(&state->wq);
341 }
342
343 int msp_sleep(struct msp_state *state, int timeout)
344 {
345 DECLARE_WAITQUEUE(wait, current);
346
347 add_wait_queue(&state->wq, &wait);
348 if (!kthread_should_stop()) {
349 if (timeout < 0) {
350 set_current_state(TASK_INTERRUPTIBLE);
351 schedule();
352 } else {
353 schedule_timeout_interruptible
354 (msecs_to_jiffies(timeout));
355 }
356 }
357
358 remove_wait_queue(&state->wq, &wait);
359 try_to_freeze();
360 return state->restart;
361 }
362
363 /* ------------------------------------------------------------------------ */
364 #ifdef CONFIG_VIDEO_V4L1
365 static int msp_mode_v4l2_to_v4l1(int rxsubchans, int audmode)
366 {
367 if (rxsubchans == V4L2_TUNER_SUB_MONO)
368 return VIDEO_SOUND_MONO;
369 if (rxsubchans == V4L2_TUNER_SUB_STEREO)
370 return VIDEO_SOUND_STEREO;
371 if (audmode == V4L2_TUNER_MODE_LANG2)
372 return VIDEO_SOUND_LANG2;
373 return VIDEO_SOUND_LANG1;
374 }
375
376 static int msp_mode_v4l1_to_v4l2(int mode)
377 {
378 if (mode & VIDEO_SOUND_STEREO)
379 return V4L2_TUNER_MODE_STEREO;
380 if (mode & VIDEO_SOUND_LANG2)
381 return V4L2_TUNER_MODE_LANG2;
382 if (mode & VIDEO_SOUND_LANG1)
383 return V4L2_TUNER_MODE_LANG1;
384 return V4L2_TUNER_MODE_MONO;
385 }
386 #endif
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 #ifdef CONFIG_VIDEO_V4L1
513 case VIDIOCGAUDIO:
514 {
515 struct video_audio *va = arg;
516
517 va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE;
518 if (state->has_sound_processing)
519 va->flags |= VIDEO_AUDIO_BALANCE |
520 VIDEO_AUDIO_BASS |
521 VIDEO_AUDIO_TREBLE;
522 if (state->muted)
523 va->flags |= VIDEO_AUDIO_MUTE;
524 va->volume = state->volume;
525 va->balance = state->volume ? state->balance : 32768;
526 va->bass = state->bass;
527 va->treble = state->treble;
528
529 if (state->radio)
530 break;
531 if (state->opmode == OPMODE_AUTOSELECT)
532 msp_detect_stereo(client);
533 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans, state->audmode);
534 break;
535 }
536
537 case VIDIOCSAUDIO:
538 {
539 struct video_audio *va = arg;
540
541 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
542 state->volume = va->volume;
543 state->balance = va->balance;
544 state->bass = va->bass;
545 state->treble = va->treble;
546 msp_set_audio(client);
547
548 if (va->mode != 0 && state->radio == 0 &&
549 state->audmode != msp_mode_v4l1_to_v4l2(va->mode)) {
550 state->audmode = msp_mode_v4l1_to_v4l2(va->mode);
551 msp_set_audmode(client);
552 }
553 break;
554 }
555
556 case VIDIOCSCHAN:
557 {
558 struct video_channel *vc = arg;
559 int update = 0;
560 v4l2_std_id std;
561
562 if (state->radio)
563 update = 1;
564 state->radio = 0;
565 if (vc->norm == VIDEO_MODE_PAL)
566 std = V4L2_STD_PAL;
567 else if (vc->norm == VIDEO_MODE_SECAM)
568 std = V4L2_STD_SECAM;
569 else
570 std = V4L2_STD_NTSC;
571 if (std != state->v4l2_std) {
572 state->v4l2_std = std;
573 update = 1;
574 }
575 if (update)
576 msp_wake_thread(client);
577 break;
578 }
579
580 case VIDIOCSFREQ:
581 {
582 /* new channel -- kick audio carrier scan */
583 msp_wake_thread(client);
584 break;
585 }
586 #endif
587 case VIDIOC_S_FREQUENCY:
588 {
589 /* new channel -- kick audio carrier scan */
590 msp_wake_thread(client);
591 break;
592 }
593
594 /* --- v4l2 ioctls --- */
595 case VIDIOC_S_STD:
596 {
597 v4l2_std_id *id = arg;
598 int update = state->radio || state->v4l2_std != *id;
599
600 state->v4l2_std = *id;
601 state->radio = 0;
602 if (update)
603 msp_wake_thread(client);
604 return 0;
605 }
606
607 case VIDIOC_INT_G_AUDIO_ROUTING:
608 {
609 struct v4l2_routing *rt = arg;
610
611 *rt = state->routing;
612 break;
613 }
614
615 case VIDIOC_INT_S_AUDIO_ROUTING:
616 {
617 struct v4l2_routing *rt = arg;
618 int tuner = (rt->input >> 3) & 1;
619 int sc_in = rt->input & 0x7;
620 int sc1_out = rt->output & 0xf;
621 int sc2_out = (rt->output >> 4) & 0xf;
622 u16 val, reg;
623 int i;
624 int extern_input = 1;
625
626 if (state->routing.input == rt->input &&
627 state->routing.output == rt->output)
628 break;
629 state->routing = *rt;
630 /* check if the tuner input is used */
631 for (i = 0; i < 5; i++) {
632 if (((rt->input >> (4 + i * 4)) & 0xf) == 0)
633 extern_input = 0;
634 }
635 state->mode = extern_input ? MSP_MODE_EXTERN : MSP_MODE_AM_DETECT;
636 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
637 msp_set_scart(client, sc_in, 0);
638 msp_set_scart(client, sc1_out, 1);
639 msp_set_scart(client, sc2_out, 2);
640 msp_set_audmode(client);
641 reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb;
642 val = msp_read_dem(client, reg);
643 msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8));
644 /* wake thread when a new input is chosen */
645 msp_wake_thread(client);
646 break;
647 }
648
649 case VIDIOC_G_TUNER:
650 {
651 struct v4l2_tuner *vt = arg;
652
653 if (state->radio)
654 break;
655 if (state->opmode == OPMODE_AUTOSELECT)
656 msp_detect_stereo(client);
657 vt->audmode = state->audmode;
658 vt->rxsubchans = state->rxsubchans;
659 vt->capability |= V4L2_TUNER_CAP_STEREO |
660 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
661 break;
662 }
663
664 case VIDIOC_S_TUNER:
665 {
666 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
667
668 if (state->radio) /* TODO: add mono/stereo support for radio */
669 break;
670 if (state->audmode == vt->audmode)
671 break;
672 state->audmode = vt->audmode;
673 /* only set audmode */
674 msp_set_audmode(client);
675 break;
676 }
677
678 case VIDIOC_INT_I2S_CLOCK_FREQ:
679 {
680 u32 *a = (u32 *)arg;
681
682 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);
683
684 switch (*a) {
685 case 1024000:
686 state->i2s_mode = 0;
687 break;
688 case 2048000:
689 state->i2s_mode = 1;
690 break;
691 default:
692 return -EINVAL;
693 }
694 break;
695 }
696
697 case VIDIOC_QUERYCTRL:
698 {
699 struct v4l2_queryctrl *qc = arg;
700
701 switch (qc->id) {
702 case V4L2_CID_AUDIO_VOLUME:
703 case V4L2_CID_AUDIO_MUTE:
704 return v4l2_ctrl_query_fill_std(qc);
705 default:
706 break;
707 }
708 if (!state->has_sound_processing)
709 return -EINVAL;
710 switch (qc->id) {
711 case V4L2_CID_AUDIO_LOUDNESS:
712 case V4L2_CID_AUDIO_BALANCE:
713 case V4L2_CID_AUDIO_BASS:
714 case V4L2_CID_AUDIO_TREBLE:
715 return v4l2_ctrl_query_fill_std(qc);
716 default:
717 return -EINVAL;
718 }
719 }
720
721 case VIDIOC_G_CTRL:
722 return msp_get_ctrl(client, arg);
723
724 case VIDIOC_S_CTRL:
725 return msp_set_ctrl(client, arg);
726
727 case VIDIOC_LOG_STATUS:
728 {
729 const char *p;
730
731 if (state->opmode == OPMODE_AUTOSELECT)
732 msp_detect_stereo(client);
733 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
734 client->name, state->rev1, state->rev2);
735 v4l_info(client, "Audio: volume %d%s\n",
736 state->volume, state->muted ? " (muted)" : "");
737 if (state->has_sound_processing) {
738 v4l_info(client, "Audio: balance %d bass %d treble %d loudness %s\n",
739 state->balance, state->bass, state->treble,
740 state->loudness ? "on" : "off");
741 }
742 switch (state->mode) {
743 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
744 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
745 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono + FM-stereo"; break;
746 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
747 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
748 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
749 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
750 case MSP_MODE_BTSC: p = "BTSC"; break;
751 case MSP_MODE_EXTERN: p = "External input"; break;
752 default: p = "unknown"; break;
753 }
754 if (state->mode == MSP_MODE_EXTERN) {
755 v4l_info(client, "Mode: %s\n", p);
756 } else if (state->opmode == OPMODE_MANUAL) {
757 v4l_info(client, "Mode: %s (%s%s)\n", p,
758 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
759 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
760 } else {
761 if (state->opmode == OPMODE_AUTODETECT)
762 v4l_info(client, "Mode: %s\n", p);
763 v4l_info(client, "Standard: %s (%s%s)\n",
764 msp_standard_std_name(state->std),
765 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
766 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
767 }
768 v4l_info(client, "Audmode: 0x%04x\n", state->audmode);
769 v4l_info(client, "Routing: 0x%08x (input) 0x%08x (output)\n",
770 state->routing.input, state->routing.output);
771 v4l_info(client, "ACB: 0x%04x\n", state->acb);
772 break;
773 }
774
775 case VIDIOC_G_CHIP_IDENT:
776 return v4l2_chip_ident_i2c_client(client, arg, state->ident, (state->rev1 << 16) | state->rev2);
777
778 default:
779 /* unknown */
780 return -EINVAL;
781 }
782 return 0;
783 }
784
785 static int msp_suspend(struct i2c_client *client, pm_message_t state)
786 {
787 v4l_dbg(1, msp_debug, client, "suspend\n");
788 msp_reset(client);
789 return 0;
790 }
791
792 static int msp_resume(struct i2c_client *client)
793 {
794 v4l_dbg(1, msp_debug, client, "resume\n");
795 msp_wake_thread(client);
796 return 0;
797 }
798
799 /* ----------------------------------------------------------------------- */
800
801 static int msp_probe(struct i2c_client *client)
802 {
803 struct msp_state *state;
804 int (*thread_func)(void *data) = NULL;
805 int msp_hard;
806 int msp_family;
807 int msp_revision;
808 int msp_product, msp_prod_hi, msp_prod_lo;
809 int msp_rom;
810
811 snprintf(client->name, sizeof(client->name) - 1, "msp3400");
812
813 if (msp_reset(client) == -1) {
814 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
815 return -ENODEV;
816 }
817
818 state = kzalloc(sizeof(*state), GFP_KERNEL);
819 if (!state) {
820 return -ENOMEM;
821 }
822
823 i2c_set_clientdata(client, state);
824
825 state->v4l2_std = V4L2_STD_NTSC;
826 state->audmode = V4L2_TUNER_MODE_STEREO;
827 state->volume = 58880; /* 0db gain */
828 state->balance = 32768; /* 0db gain */
829 state->bass = 32768;
830 state->treble = 32768;
831 state->loudness = 0;
832 state->input = -1;
833 state->muted = 0;
834 state->i2s_mode = 0;
835 init_waitqueue_head(&state->wq);
836 /* These are the reset input/output positions */
837 state->routing.input = MSP_INPUT_DEFAULT;
838 state->routing.output = MSP_OUTPUT_DEFAULT;
839
840 state->rev1 = msp_read_dsp(client, 0x1e);
841 if (state->rev1 != -1)
842 state->rev2 = msp_read_dsp(client, 0x1f);
843 v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
844 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
845 v4l_dbg(1, msp_debug, client, "not an msp3400 (cannot read chip version)\n");
846 kfree(state);
847 return -ENODEV;
848 }
849
850 msp_set_audio(client);
851
852 msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
853 msp_product = (state->rev2 >> 8) & 0xff;
854 msp_prod_hi = msp_product / 10;
855 msp_prod_lo = msp_product % 10;
856 msp_revision = (state->rev1 & 0x0f) + '@';
857 msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
858 msp_rom = state->rev2 & 0x1f;
859 snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
860 msp_family, msp_product,
861 msp_revision, msp_hard, msp_rom);
862 /* Rev B=2, C=3, D=4, G=7 */
863 state->ident = msp_family * 10000 + 4000 + msp_product * 10 + msp_revision - '@';
864
865 /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
866 state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
867 /* Has radio support: was added with revision G */
868 state->has_radio = msp_revision >= 'G';
869 /* Has headphones output: not for stripped down products */
870 state->has_headphones = msp_prod_lo < 5;
871 /* Has scart2 input: not in stripped down products of the '3' family */
872 state->has_scart2 = msp_family >= 4 || msp_prod_lo < 7;
873 /* Has scart3 input: not in stripped down products of the '3' family */
874 state->has_scart3 = msp_family >= 4 || msp_prod_lo < 5;
875 /* Has scart4 input: not in pre D revisions, not in stripped D revs */
876 state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
877 /* Has scart2 output: not in stripped down products of the '3' family */
878 state->has_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
879 /* Has scart2 a volume control? Not in pre-D revisions. */
880 state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart2_out;
881 /* Has a configurable i2s out? */
882 state->has_i2s_conf = msp_revision >= 'G' && msp_prod_lo < 7;
883 /* Has subwoofer output: not in pre-D revs and not in stripped down products */
884 state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
885 /* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
886 stripped down products */
887 state->has_sound_processing = msp_prod_lo < 7;
888 /* Has Virtual Dolby Surround: only in msp34x1 */
889 state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
890 /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
891 state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;
892 /* The msp343xG supports BTSC only and cannot do Automatic Standard Detection. */
893 state->force_btsc = msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3;
894
895 state->opmode = opmode;
896 if (state->opmode == OPMODE_AUTO) {
897 /* MSP revision G and up have both autodetect and autoselect */
898 if (msp_revision >= 'G')
899 state->opmode = OPMODE_AUTOSELECT;
900 /* MSP revision D and up have autodetect */
901 else if (msp_revision >= 'D')
902 state->opmode = OPMODE_AUTODETECT;
903 else
904 state->opmode = OPMODE_MANUAL;
905 }
906
907 /* hello world :-) */
908 v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, client->addr << 1, client->adapter->name);
909 v4l_info(client, "%s ", client->name);
910 if (state->has_nicam && state->has_radio)
911 printk("supports nicam and radio, ");
912 else if (state->has_nicam)
913 printk("supports nicam, ");
914 else if (state->has_radio)
915 printk("supports radio, ");
916 printk("mode is ");
917
918 /* version-specific initialization */
919 switch (state->opmode) {
920 case OPMODE_MANUAL:
921 printk("manual");
922 thread_func = msp3400c_thread;
923 break;
924 case OPMODE_AUTODETECT:
925 printk("autodetect");
926 thread_func = msp3410d_thread;
927 break;
928 case OPMODE_AUTOSELECT:
929 printk("autodetect and autoselect");
930 thread_func = msp34xxg_thread;
931 break;
932 }
933 printk("\n");
934
935 /* startup control thread if needed */
936 if (thread_func) {
937 state->kthread = kthread_run(thread_func, client, "msp34xx");
938
939 if (IS_ERR(state->kthread))
940 v4l_warn(client, "kernel_thread() failed\n");
941 msp_wake_thread(client);
942 }
943 return 0;
944 }
945
946 static int msp_remove(struct i2c_client *client)
947 {
948 struct msp_state *state = i2c_get_clientdata(client);
949
950 /* shutdown control thread */
951 if (state->kthread) {
952 state->restart = 1;
953 kthread_stop(state->kthread);
954 }
955 msp_reset(client);
956
957 kfree(state);
958 return 0;
959 }
960
961 /* ----------------------------------------------------------------------- */
962
963 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
964 .name = "msp3400",
965 .driverid = I2C_DRIVERID_MSP3400,
966 .command = msp_command,
967 .probe = msp_probe,
968 .remove = msp_remove,
969 .suspend = msp_suspend,
970 .resume = msp_resume,
971 };
972
973
974 /*
975 * Overrides for Emacs so that we follow Linus's tabbing style.
976 * ---------------------------------------------------------------------------
977 * Local variables:
978 * c-basic-offset: 8
979 * End:
980 */
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