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V4L/DVB (6006): tuner: move last_div to tuner-simple private data
[wrt350n-kernel.git] / drivers / media / video / msp3400-driver.c
blobe9d400e19a5d604b79bc15320e8141df3cb9a703
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/freezer.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 schedule_timeout_interruptible(msecs_to_jiffies(10));
161 }
162 if (err == 3) {
163 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
164 msp_reset(client);
165 return -1;
166 }
167 retval = read[0] << 8 | read[1];
168 v4l_dbg(3, msp_debug, client, "msp_read(0x%x, 0x%x): 0x%x\n", dev, addr, retval);
169 return retval;
170 }
171
172 int msp_read_dem(struct i2c_client *client, int addr)
173 {
174 return msp_read(client, I2C_MSP_DEM, addr);
175 }
176
177 int msp_read_dsp(struct i2c_client *client, int addr)
178 {
179 return msp_read(client, I2C_MSP_DSP, addr);
180 }
181
182 static int msp_write(struct i2c_client *client, int dev, int addr, int val)
183 {
184 int err;
185 u8 buffer[5];
186
187 buffer[0] = dev;
188 buffer[1] = addr >> 8;
189 buffer[2] = addr & 0xff;
190 buffer[3] = val >> 8;
191 buffer[4] = val & 0xff;
192
193 v4l_dbg(3, msp_debug, client, "msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val);
194 for (err = 0; err < 3; err++) {
195 if (i2c_master_send(client, buffer, 5) == 5)
196 break;
197 v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
198 dev, addr);
199 schedule_timeout_interruptible(msecs_to_jiffies(10));
200 }
201 if (err == 3) {
202 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
203 msp_reset(client);
204 return -1;
205 }
206 return 0;
207 }
208
209 int msp_write_dem(struct i2c_client *client, int addr, int val)
210 {
211 return msp_write(client, I2C_MSP_DEM, addr, val);
212 }
213
214 int msp_write_dsp(struct i2c_client *client, int addr, int val)
215 {
216 return msp_write(client, I2C_MSP_DSP, addr, val);
217 }
218
219 /* ----------------------------------------------------------------------- *
220 * bits 9 8 5 - SCART DSP input Select:
221 * 0 0 0 - SCART 1 to DSP input (reset position)
222 * 0 1 0 - MONO to DSP input
223 * 1 0 0 - SCART 2 to DSP input
224 * 1 1 1 - Mute DSP input
225 *
226 * bits 11 10 6 - SCART 1 Output Select:
227 * 0 0 0 - undefined (reset position)
228 * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
229 * 1 0 0 - MONO input to SCART 1 Output
230 * 1 1 0 - SCART 1 DA to SCART 1 Output
231 * 0 0 1 - SCART 2 DA to SCART 1 Output
232 * 0 1 1 - SCART 1 Input to SCART 1 Output
233 * 1 1 1 - Mute SCART 1 Output
234 *
235 * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART):
236 * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position)
237 * 0 1 0 - SCART 1 Input to SCART 2 Output
238 * 1 0 0 - MONO input to SCART 2 Output
239 * 0 0 1 - SCART 2 DA to SCART 2 Output
240 * 0 1 1 - SCART 2 Input to SCART 2 Output
241 * 1 1 0 - Mute SCART 2 Output
242 *
243 * Bits 4 to 0 should be zero.
244 * ----------------------------------------------------------------------- */
245
246 static int scarts[3][9] = {
247 /* MASK IN1 IN2 IN3 IN4 IN1_DA IN2_DA MONO MUTE */
248 /* SCART DSP Input select */
249 { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1, -1, 0x0100, 0x0320 },
250 /* SCART1 Output select */
251 { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 },
252 /* SCART2 Output select */
253 { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 },
254 };
255
256 static char *scart_names[] = {
257 "in1", "in2", "in3", "in4", "in1 da", "in2 da", "mono", "mute"
258 };
259
260 void msp_set_scart(struct i2c_client *client, int in, int out)
261 {
262 struct msp_state *state = i2c_get_clientdata(client);
263
264 state->in_scart = in;
265
266 if (in >= 0 && in <= 7 && out >= 0 && out <= 2) {
267 if (-1 == scarts[out][in + 1])
268 return;
269
270 state->acb &= ~scarts[out][0];
271 state->acb |= scarts[out][in + 1];
272 } else
273 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
274
275 v4l_dbg(1, msp_debug, client, "scart switch: %s => %d (ACB=0x%04x)\n",
276 scart_names[in], out, state->acb);
277 msp_write_dsp(client, 0x13, state->acb);
278
279 /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
280 if (state->has_i2s_conf)
281 msp_write_dem(client, 0x40, state->i2s_mode);
282 }
283
284 void msp_set_audio(struct i2c_client *client)
285 {
286 struct msp_state *state = i2c_get_clientdata(client);
287 int bal = 0, bass, treble, loudness;
288 int val = 0;
289 int reallymuted = state->muted | state->scan_in_progress;
290
291 if (!reallymuted)
292 val = (state->volume * 0x7f / 65535) << 8;
293
294 v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n",
295 state->muted ? "on" : "off", state->scan_in_progress ? "yes" : "no",
296 state->volume);
297
298 msp_write_dsp(client, 0x0000, val);
299 msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1));
300 if (state->has_scart2_out_volume)
301 msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1));
302 if (state->has_headphones)
303 msp_write_dsp(client, 0x0006, val);
304 if (!state->has_sound_processing)
305 return;
306
307 if (val)
308 bal = (u8)((state->balance / 256) - 128);
309 bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
310 treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
311 loudness = state->loudness ? ((5 * 4) << 8) : 0;
312
313 v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
314 state->balance, state->bass, state->treble, state->loudness);
315
316 msp_write_dsp(client, 0x0001, bal << 8);
317 msp_write_dsp(client, 0x0002, bass);
318 msp_write_dsp(client, 0x0003, treble);
319 msp_write_dsp(client, 0x0004, loudness);
320 if (!state->has_headphones)
321 return;
322 msp_write_dsp(client, 0x0030, bal << 8);
323 msp_write_dsp(client, 0x0031, bass);
324 msp_write_dsp(client, 0x0032, treble);
325 msp_write_dsp(client, 0x0033, loudness);
326 }
327
328 /* ------------------------------------------------------------------------ */
329
330
331 static void msp_wake_thread(struct i2c_client *client)
332 {
333 struct msp_state *state = i2c_get_clientdata(client);
334
335 if (NULL == state->kthread)
336 return;
337 state->watch_stereo = 0;
338 state->restart = 1;
339 wake_up_interruptible(&state->wq);
340 }
341
342 int msp_sleep(struct msp_state *state, int timeout)
343 {
344 DECLARE_WAITQUEUE(wait, current);
345
346 add_wait_queue(&state->wq, &wait);
347 if (!kthread_should_stop()) {
348 if (timeout < 0) {
349 set_current_state(TASK_INTERRUPTIBLE);
350 schedule();
351 } else {
352 schedule_timeout_interruptible
353 (msecs_to_jiffies(timeout));
354 }
355 }
356
357 remove_wait_queue(&state->wq, &wait);
358 try_to_freeze();
359 return state->restart;
360 }
361
362 /* ------------------------------------------------------------------------ */
363 #ifdef CONFIG_VIDEO_V4L1
364 static int msp_mode_v4l2_to_v4l1(int rxsubchans, int audmode)
365 {
366 if (rxsubchans == V4L2_TUNER_SUB_MONO)
367 return VIDEO_SOUND_MONO;
368 if (rxsubchans == V4L2_TUNER_SUB_STEREO)
369 return VIDEO_SOUND_STEREO;
370 if (audmode == V4L2_TUNER_MODE_LANG2)
371 return VIDEO_SOUND_LANG2;
372 return VIDEO_SOUND_LANG1;
373 }
374
375 static int msp_mode_v4l1_to_v4l2(int mode)
376 {
377 if (mode & VIDEO_SOUND_STEREO)
378 return V4L2_TUNER_MODE_STEREO;
379 if (mode & VIDEO_SOUND_LANG2)
380 return V4L2_TUNER_MODE_LANG2;
381 if (mode & VIDEO_SOUND_LANG1)
382 return V4L2_TUNER_MODE_LANG1;
383 return V4L2_TUNER_MODE_MONO;
384 }
385 #endif
386
387 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
388 {
389 struct msp_state *state = i2c_get_clientdata(client);
390
391 switch (ctrl->id) {
392 case V4L2_CID_AUDIO_VOLUME:
393 ctrl->value = state->volume;
394 break;
395
396 case V4L2_CID_AUDIO_MUTE:
397 ctrl->value = state->muted;
398 break;
399
400 case V4L2_CID_AUDIO_BALANCE:
401 if (!state->has_sound_processing)
402 return -EINVAL;
403 ctrl->value = state->balance;
404 break;
405
406 case V4L2_CID_AUDIO_BASS:
407 if (!state->has_sound_processing)
408 return -EINVAL;
409 ctrl->value = state->bass;
410 break;
411
412 case V4L2_CID_AUDIO_TREBLE:
413 if (!state->has_sound_processing)
414 return -EINVAL;
415 ctrl->value = state->treble;
416 break;
417
418 case V4L2_CID_AUDIO_LOUDNESS:
419 if (!state->has_sound_processing)
420 return -EINVAL;
421 ctrl->value = state->loudness;
422 break;
423
424 default:
425 return -EINVAL;
426 }
427 return 0;
428 }
429
430 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
431 {
432 struct msp_state *state = i2c_get_clientdata(client);
433
434 switch (ctrl->id) {
435 case V4L2_CID_AUDIO_VOLUME:
436 state->volume = ctrl->value;
437 if (state->volume == 0)
438 state->balance = 32768;
439 break;
440
441 case V4L2_CID_AUDIO_MUTE:
442 if (ctrl->value < 0 || ctrl->value >= 2)
443 return -ERANGE;
444 state->muted = ctrl->value;
445 break;
446
447 case V4L2_CID_AUDIO_BASS:
448 if (!state->has_sound_processing)
449 return -EINVAL;
450 state->bass = ctrl->value;
451 break;
452
453 case V4L2_CID_AUDIO_TREBLE:
454 if (!state->has_sound_processing)
455 return -EINVAL;
456 state->treble = ctrl->value;
457 break;
458
459 case V4L2_CID_AUDIO_LOUDNESS:
460 if (!state->has_sound_processing)
461 return -EINVAL;
462 state->loudness = ctrl->value;
463 break;
464
465 case V4L2_CID_AUDIO_BALANCE:
466 if (!state->has_sound_processing)
467 return -EINVAL;
468 state->balance = ctrl->value;
469 break;
470
471 default:
472 return -EINVAL;
473 }
474 msp_set_audio(client);
475 return 0;
476 }
477
478 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
479 {
480 struct msp_state *state = i2c_get_clientdata(client);
481
482 if (msp_debug >= 2)
483 v4l_i2c_print_ioctl(client, cmd);
484
485 switch (cmd) {
486 case AUDC_SET_RADIO:
487 if (state->radio)
488 return 0;
489 state->radio = 1;
490 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
491 state->watch_stereo = 0;
492 switch (state->opmode) {
493 case OPMODE_MANUAL:
494 /* set msp3400 to FM radio mode */
495 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
496 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
497 MSP_CARRIER(10.7));
498 msp_set_audio(client);
499 break;
500 case OPMODE_AUTODETECT:
501 case OPMODE_AUTOSELECT:
502 /* the thread will do for us */
503 msp_wake_thread(client);
504 break;
505 }
506 break;
507
508 /* --- v4l ioctls --- */
509 /* take care: bttv does userspace copying, we'll get a
510 kernel pointer here... */
511 #ifdef CONFIG_VIDEO_V4L1
512 case VIDIOCGAUDIO:
513 {
514 struct video_audio *va = arg;
515
516 va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE;
517 if (state->has_sound_processing)
518 va->flags |= VIDEO_AUDIO_BALANCE |
519 VIDEO_AUDIO_BASS |
520 VIDEO_AUDIO_TREBLE;
521 if (state->muted)
522 va->flags |= VIDEO_AUDIO_MUTE;
523 va->volume = state->volume;
524 va->balance = state->volume ? state->balance : 32768;
525 va->bass = state->bass;
526 va->treble = state->treble;
527
528 if (state->radio)
529 break;
530 if (state->opmode == OPMODE_AUTOSELECT)
531 msp_detect_stereo(client);
532 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans, state->audmode);
533 break;
534 }
535
536 case VIDIOCSAUDIO:
537 {
538 struct video_audio *va = arg;
539
540 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
541 state->volume = va->volume;
542 state->balance = va->balance;
543 state->bass = va->bass;
544 state->treble = va->treble;
545 msp_set_audio(client);
546
547 if (va->mode != 0 && state->radio == 0 &&
548 state->audmode != msp_mode_v4l1_to_v4l2(va->mode)) {
549 state->audmode = msp_mode_v4l1_to_v4l2(va->mode);
550 msp_set_audmode(client);
551 }
552 break;
553 }
554
555 case VIDIOCSCHAN:
556 {
557 struct video_channel *vc = arg;
558 int update = 0;
559 v4l2_std_id std;
560
561 if (state->radio)
562 update = 1;
563 state->radio = 0;
564 if (vc->norm == VIDEO_MODE_PAL)
565 std = V4L2_STD_PAL;
566 else if (vc->norm == VIDEO_MODE_SECAM)
567 std = V4L2_STD_SECAM;
568 else
569 std = V4L2_STD_NTSC;
570 if (std != state->v4l2_std) {
571 state->v4l2_std = std;
572 update = 1;
573 }
574 if (update)
575 msp_wake_thread(client);
576 break;
577 }
578
579 case VIDIOCSFREQ:
580 {
581 /* new channel -- kick audio carrier scan */
582 msp_wake_thread(client);
583 break;
584 }
585 #endif
586 case VIDIOC_S_FREQUENCY:
587 {
588 /* new channel -- kick audio carrier scan */
589 msp_wake_thread(client);
590 break;
591 }
592
593 /* --- v4l2 ioctls --- */
594 case VIDIOC_S_STD:
595 {
596 v4l2_std_id *id = arg;
597 int update = state->radio || state->v4l2_std != *id;
598
599 state->v4l2_std = *id;
600 state->radio = 0;
601 if (update)
602 msp_wake_thread(client);
603 return 0;
604 }
605
606 case VIDIOC_INT_G_AUDIO_ROUTING:
607 {
608 struct v4l2_routing *rt = arg;
609
610 *rt = state->routing;
611 break;
612 }
613
614 case VIDIOC_INT_S_AUDIO_ROUTING:
615 {
616 struct v4l2_routing *rt = arg;
617 int tuner = (rt->input >> 3) & 1;
618 int sc_in = rt->input & 0x7;
619 int sc1_out = rt->output & 0xf;
620 int sc2_out = (rt->output >> 4) & 0xf;
621 u16 val, reg;
622 int i;
623 int extern_input = 1;
624
625 if (state->routing.input == rt->input &&
626 state->routing.output == rt->output)
627 break;
628 state->routing = *rt;
629 /* check if the tuner input is used */
630 for (i = 0; i < 5; i++) {
631 if (((rt->input >> (4 + i * 4)) & 0xf) == 0)
632 extern_input = 0;
633 }
634 state->mode = extern_input ? MSP_MODE_EXTERN : MSP_MODE_AM_DETECT;
635 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
636 msp_set_scart(client, sc_in, 0);
637 msp_set_scart(client, sc1_out, 1);
638 msp_set_scart(client, sc2_out, 2);
639 msp_set_audmode(client);
640 reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb;
641 val = msp_read_dem(client, reg);
642 msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8));
643 /* wake thread when a new input is chosen */
644 msp_wake_thread(client);
645 break;
646 }
647
648 case VIDIOC_G_TUNER:
649 {
650 struct v4l2_tuner *vt = arg;
651
652 if (state->radio)
653 break;
654 if (state->opmode == OPMODE_AUTOSELECT)
655 msp_detect_stereo(client);
656 vt->audmode = state->audmode;
657 vt->rxsubchans = state->rxsubchans;
658 vt->capability |= V4L2_TUNER_CAP_STEREO |
659 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
660 break;
661 }
662
663 case VIDIOC_S_TUNER:
664 {
665 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
666
667 if (state->radio) /* TODO: add mono/stereo support for radio */
668 break;
669 if (state->audmode == vt->audmode)
670 break;
671 state->audmode = vt->audmode;
672 /* only set audmode */
673 msp_set_audmode(client);
674 break;
675 }
676
677 case VIDIOC_INT_I2S_CLOCK_FREQ:
678 {
679 u32 *a = (u32 *)arg;
680
681 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);
682
683 switch (*a) {
684 case 1024000:
685 state->i2s_mode = 0;
686 break;
687 case 2048000:
688 state->i2s_mode = 1;
689 break;
690 default:
691 return -EINVAL;
692 }
693 break;
694 }
695
696 case VIDIOC_QUERYCTRL:
697 {
698 struct v4l2_queryctrl *qc = arg;
699
700 switch (qc->id) {
701 case V4L2_CID_AUDIO_VOLUME:
702 case V4L2_CID_AUDIO_MUTE:
703 return v4l2_ctrl_query_fill_std(qc);
704 default:
705 break;
706 }
707 if (!state->has_sound_processing)
708 return -EINVAL;
709 switch (qc->id) {
710 case V4L2_CID_AUDIO_LOUDNESS:
711 case V4L2_CID_AUDIO_BALANCE:
712 case V4L2_CID_AUDIO_BASS:
713 case V4L2_CID_AUDIO_TREBLE:
714 return v4l2_ctrl_query_fill_std(qc);
715 default:
716 return -EINVAL;
717 }
718 }
719
720 case VIDIOC_G_CTRL:
721 return msp_get_ctrl(client, arg);
722
723 case VIDIOC_S_CTRL:
724 return msp_set_ctrl(client, arg);
725
726 case VIDIOC_LOG_STATUS:
727 {
728 const char *p;
729
730 if (state->opmode == OPMODE_AUTOSELECT)
731 msp_detect_stereo(client);
732 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
733 client->name, state->rev1, state->rev2);
734 v4l_info(client, "Audio: volume %d%s\n",
735 state->volume, state->muted ? " (muted)" : "");
736 if (state->has_sound_processing) {
737 v4l_info(client, "Audio: balance %d bass %d treble %d loudness %s\n",
738 state->balance, state->bass, state->treble,
739 state->loudness ? "on" : "off");
740 }
741 switch (state->mode) {
742 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
743 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
744 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono + FM-stereo"; break;
745 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
746 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
747 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
748 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
749 case MSP_MODE_BTSC: p = "BTSC"; break;
750 case MSP_MODE_EXTERN: p = "External input"; break;
751 default: p = "unknown"; break;
752 }
753 if (state->mode == MSP_MODE_EXTERN) {
754 v4l_info(client, "Mode: %s\n", p);
755 } else if (state->opmode == OPMODE_MANUAL) {
756 v4l_info(client, "Mode: %s (%s%s)\n", p,
757 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
758 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
759 } else {
760 if (state->opmode == OPMODE_AUTODETECT)
761 v4l_info(client, "Mode: %s\n", p);
762 v4l_info(client, "Standard: %s (%s%s)\n",
763 msp_standard_std_name(state->std),
764 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
765 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
766 }
767 v4l_info(client, "Audmode: 0x%04x\n", state->audmode);
768 v4l_info(client, "Routing: 0x%08x (input) 0x%08x (output)\n",
769 state->routing.input, state->routing.output);
770 v4l_info(client, "ACB: 0x%04x\n", state->acb);
771 break;
772 }
773
774 case VIDIOC_G_CHIP_IDENT:
775 return v4l2_chip_ident_i2c_client(client, arg, state->ident, (state->rev1 << 16) | state->rev2);
776
777 default:
778 /* unknown */
779 return -EINVAL;
780 }
781 return 0;
782 }
783
784 static int msp_suspend(struct i2c_client *client, pm_message_t state)
785 {
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
795 v4l_dbg(1, msp_debug, client, "resume\n");
796 msp_wake_thread(client);
797 return 0;
798 }
799
800 /* ----------------------------------------------------------------------- */
801
802 static struct i2c_driver i2c_driver;
803
804 static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
805 {
806 struct i2c_client *client;
807 struct msp_state *state;
808 int (*thread_func)(void *data) = NULL;
809 int msp_hard;
810 int msp_family;
811 int msp_revision;
812 int msp_product, msp_prod_hi, msp_prod_lo;
813 int msp_rom;
814
815 client = kzalloc(sizeof(*client), GFP_KERNEL);
816 if (!client)
817 return -ENOMEM;
818
819 client->addr = address;
820 client->adapter = adapter;
821 client->driver = &i2c_driver;
822 snprintf(client->name, sizeof(client->name) - 1, "msp3400");
823
824 if (msp_reset(client) == -1) {
825 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
826 kfree(client);
827 return 0;
828 }
829
830 state = kzalloc(sizeof(*state), GFP_KERNEL);
831 if (!state) {
832 kfree(client);
833 return -ENOMEM;
834 }
835
836 i2c_set_clientdata(client, state);
837
838 state->v4l2_std = V4L2_STD_NTSC;
839 state->audmode = V4L2_TUNER_MODE_STEREO;
840 state->volume = 58880; /* 0db gain */
841 state->balance = 32768; /* 0db gain */
842 state->bass = 32768;
843 state->treble = 32768;
844 state->loudness = 0;
845 state->input = -1;
846 state->muted = 0;
847 state->i2s_mode = 0;
848 init_waitqueue_head(&state->wq);
849 /* These are the reset input/output positions */
850 state->routing.input = MSP_INPUT_DEFAULT;
851 state->routing.output = MSP_OUTPUT_DEFAULT;
852
853 state->rev1 = msp_read_dsp(client, 0x1e);
854 if (state->rev1 != -1)
855 state->rev2 = msp_read_dsp(client, 0x1f);
856 v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
857 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
858 v4l_dbg(1, msp_debug, client, "not an msp3400 (cannot read chip version)\n");
859 kfree(state);
860 kfree(client);
861 return 0;
862 }
863
864 msp_set_audio(client);
865
866 msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
867 msp_product = (state->rev2 >> 8) & 0xff;
868 msp_prod_hi = msp_product / 10;
869 msp_prod_lo = msp_product % 10;
870 msp_revision = (state->rev1 & 0x0f) + '@';
871 msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
872 msp_rom = state->rev2 & 0x1f;
873 snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
874 msp_family, msp_product,
875 msp_revision, msp_hard, msp_rom);
876 /* Rev B=2, C=3, D=4, G=7 */
877 state->ident = msp_family * 10000 + 4000 + msp_product * 10 + msp_revision - '@';
878
879 /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
880 state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
881 /* Has radio support: was added with revision G */
882 state->has_radio = msp_revision >= 'G';
883 /* Has headphones output: not for stripped down products */
884 state->has_headphones = msp_prod_lo < 5;
885 /* Has scart2 input: not in stripped down products of the '3' family */
886 state->has_scart2 = msp_family >= 4 || msp_prod_lo < 7;
887 /* Has scart3 input: not in stripped down products of the '3' family */
888 state->has_scart3 = msp_family >= 4 || msp_prod_lo < 5;
889 /* Has scart4 input: not in pre D revisions, not in stripped D revs */
890 state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
891 /* Has scart2 output: not in stripped down products of the '3' family */
892 state->has_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
893 /* Has scart2 a volume control? Not in pre-D revisions. */
894 state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart2_out;
895 /* Has a configurable i2s out? */
896 state->has_i2s_conf = msp_revision >= 'G' && msp_prod_lo < 7;
897 /* Has subwoofer output: not in pre-D revs and not in stripped down products */
898 state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
899 /* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
900 stripped down products */
901 state->has_sound_processing = msp_prod_lo < 7;
902 /* Has Virtual Dolby Surround: only in msp34x1 */
903 state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
904 /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
905 state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;
906 /* The msp343xG supports BTSC only and cannot do Automatic Standard Detection. */
907 state->force_btsc = msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3;
908
909 state->opmode = opmode;
910 if (state->opmode == OPMODE_AUTO) {
911 /* MSP revision G and up have both autodetect and autoselect */
912 if (msp_revision >= 'G')
913 state->opmode = OPMODE_AUTOSELECT;
914 /* MSP revision D and up have autodetect */
915 else if (msp_revision >= 'D')
916 state->opmode = OPMODE_AUTODETECT;
917 else
918 state->opmode = OPMODE_MANUAL;
919 }
920
921 /* hello world :-) */
922 v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
923 v4l_info(client, "%s ", client->name);
924 if (state->has_nicam && state->has_radio)
925 printk("supports nicam and radio, ");
926 else if (state->has_nicam)
927 printk("supports nicam, ");
928 else if (state->has_radio)
929 printk("supports radio, ");
930 printk("mode is ");
931
932 /* version-specific initialization */
933 switch (state->opmode) {
934 case OPMODE_MANUAL:
935 printk("manual");
936 thread_func = msp3400c_thread;
937 break;
938 case OPMODE_AUTODETECT:
939 printk("autodetect");
940 thread_func = msp3410d_thread;
941 break;
942 case OPMODE_AUTOSELECT:
943 printk("autodetect and autoselect");
944 thread_func = msp34xxg_thread;
945 break;
946 }
947 printk("\n");
948
949 /* startup control thread if needed */
950 if (thread_func) {
951 state->kthread = kthread_run(thread_func, client, "msp34xx");
952
953 if (IS_ERR(state->kthread))
954 v4l_warn(client, "kernel_thread() failed\n");
955 msp_wake_thread(client);
956 }
957
958 /* done */
959 i2c_attach_client(client);
960
961 return 0;
962 }
963
964 static int msp_probe(struct i2c_adapter *adapter)
965 {
966 if (adapter->class & I2C_CLASS_TV_ANALOG)
967 return i2c_probe(adapter, &addr_data, msp_attach);
968 return 0;
969 }
970
971 static int msp_detach(struct i2c_client *client)
972 {
973 struct msp_state *state = i2c_get_clientdata(client);
974 int err;
975
976 /* shutdown control thread */
977 if (state->kthread) {
978 state->restart = 1;
979 kthread_stop(state->kthread);
980 }
981 msp_reset(client);
982
983 err = i2c_detach_client(client);
984 if (err) {
985 return err;
986 }
987
988 kfree(state);
989 kfree(client);
990 return 0;
991 }
992
993 /* ----------------------------------------------------------------------- */
994
995 /* i2c implementation */
996 static struct i2c_driver i2c_driver = {
997 .id = I2C_DRIVERID_MSP3400,
998 .attach_adapter = msp_probe,
999 .detach_client = msp_detach,
1000 .suspend = msp_suspend,
1001 .resume = msp_resume,
1002 .command = msp_command,
1003 .driver = {
1004 .name = "msp3400",
1005 },
1006 };
1007
1008 static int __init msp3400_init_module(void)
1009 {
1010 return i2c_add_driver(&i2c_driver);
1011 }
1012
1013 static void __exit msp3400_cleanup_module(void)
1014 {
1015 i2c_del_driver(&i2c_driver);
1016 }
1017
1018 module_init(msp3400_init_module);
1019 module_exit(msp3400_cleanup_module);
1020
1021 /*
1022 * Overrides for Emacs so that we follow Linus's tabbing style.
1023 * ---------------------------------------------------------------------------
1024 * Local variables:
1025 * c-basic-offset: 8
1026 * End:
1027 */
WRT350N Kernel Patches