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drm/i915: NOMEM->NOSPC
[linux-2.6/mini2440.git] / drivers / media / video / msp3400-driver.c
blobe9df3cb02cc11c44b18c452715039401635ceb1a
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
46 * 02110-1301, USA.
47 */
48
49
50 #include <linux/kernel.h>
51 #include <linux/module.h>
52 #include <linux/slab.h>
53 #include <linux/i2c.h>
54 #include <linux/kthread.h>
55 #include <linux/freezer.h>
56 #include <linux/videodev2.h>
57 #include <media/v4l2-device.h>
58 #include <media/v4l2-ioctl.h>
59 #include <media/v4l2-i2c-drv.h>
60 #include <media/msp3400.h>
61 #include <media/tvaudio.h>
62 #include "msp3400-driver.h"
63
64 /* ---------------------------------------------------------------------- */
65
66 MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
67 MODULE_AUTHOR("Gerd Knorr");
68 MODULE_LICENSE("GPL");
69
70 /* module parameters */
71 static int opmode = OPMODE_AUTO;
72 int msp_debug; /* msp_debug output */
73 int msp_once; /* no continous stereo monitoring */
74 int msp_amsound; /* hard-wire AM sound at 6.5 Hz (france),
75 the autoscan seems work well only with FM... */
76 int msp_standard = 1; /* Override auto detect of audio msp_standard,
77 if needed. */
78 int msp_dolby;
79
80 int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual
81 (msp34xxg only) 0x00a0-0x03c0 */
82
83 /* read-only */
84 module_param(opmode, int, 0444);
85
86 /* read-write */
87 module_param_named(once, msp_once, bool, 0644);
88 module_param_named(debug, msp_debug, int, 0644);
89 module_param_named(stereo_threshold, msp_stereo_thresh, int, 0644);
90 module_param_named(standard, msp_standard, int, 0644);
91 module_param_named(amsound, msp_amsound, bool, 0644);
92 module_param_named(dolby, msp_dolby, bool, 0644);
93
94 MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
95 MODULE_PARM_DESC(once, "No continuous stereo monitoring");
96 MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
97 MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
98 MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
99 MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
100 MODULE_PARM_DESC(dolby, "Activates Dolby processsing");
101
102 /* ---------------------------------------------------------------------- */
103
104 /* control subaddress */
105 #define I2C_MSP_CONTROL 0x00
106 /* demodulator unit subaddress */
107 #define I2C_MSP_DEM 0x10
108 /* DSP unit subaddress */
109 #define I2C_MSP_DSP 0x12
110
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, "resetting chip, sound will go off.\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",
169 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",
195 dev, addr, val);
196 for (err = 0; err < 3; err++) {
197 if (i2c_master_send(client, buffer, 5) == 5)
198 break;
199 v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
200 dev, addr);
201 schedule_timeout_interruptible(msecs_to_jiffies(10));
202 }
203 if (err == 3) {
204 v4l_warn(client, "resetting chip, sound will go off.\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 = to_state(i2c_get_clientdata(client));
265
266 state->in_scart = in;
267
268 if (in >= 0 && in <= 7 && out >= 0 && out <= 2) {
269 if (-1 == scarts[out][in + 1])
270 return;
271
272 state->acb &= ~scarts[out][0];
273 state->acb |= scarts[out][in + 1];
274 } else
275 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
276
277 v4l_dbg(1, msp_debug, client, "scart switch: %s => %d (ACB=0x%04x)\n",
278 scart_names[in], out, state->acb);
279 msp_write_dsp(client, 0x13, state->acb);
280
281 /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
282 if (state->has_i2s_conf)
283 msp_write_dem(client, 0x40, state->i2s_mode);
284 }
285
286 void msp_set_audio(struct i2c_client *client)
287 {
288 struct msp_state *state = to_state(i2c_get_clientdata(client));
289 int bal = 0, bass, treble, loudness;
290 int val = 0;
291 int reallymuted = state->muted | state->scan_in_progress;
292
293 if (!reallymuted)
294 val = (state->volume * 0x7f / 65535) << 8;
295
296 v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n",
297 state->muted ? "on" : "off",
298 state->scan_in_progress ? "yes" : "no",
299 state->volume);
300
301 msp_write_dsp(client, 0x0000, val);
302 msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1));
303 if (state->has_scart2_out_volume)
304 msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1));
305 if (state->has_headphones)
306 msp_write_dsp(client, 0x0006, val);
307 if (!state->has_sound_processing)
308 return;
309
310 if (val)
311 bal = (u8)((state->balance / 256) - 128);
312 bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
313 treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
314 loudness = state->loudness ? ((5 * 4) << 8) : 0;
315
316 v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
317 state->balance, state->bass, state->treble, state->loudness);
318
319 msp_write_dsp(client, 0x0001, bal << 8);
320 msp_write_dsp(client, 0x0002, bass);
321 msp_write_dsp(client, 0x0003, treble);
322 msp_write_dsp(client, 0x0004, loudness);
323 if (!state->has_headphones)
324 return;
325 msp_write_dsp(client, 0x0030, bal << 8);
326 msp_write_dsp(client, 0x0031, bass);
327 msp_write_dsp(client, 0x0032, treble);
328 msp_write_dsp(client, 0x0033, loudness);
329 }
330
331 /* ------------------------------------------------------------------------ */
332
333 static void msp_wake_thread(struct i2c_client *client)
334 {
335 struct msp_state *state = to_state(i2c_get_clientdata(client));
336
337 if (NULL == state->kthread)
338 return;
339 state->watch_stereo = 0;
340 state->restart = 1;
341 wake_up_interruptible(&state->wq);
342 }
343
344 int msp_sleep(struct msp_state *state, int timeout)
345 {
346 DECLARE_WAITQUEUE(wait, current);
347
348 add_wait_queue(&state->wq, &wait);
349 if (!kthread_should_stop()) {
350 if (timeout < 0) {
351 set_current_state(TASK_INTERRUPTIBLE);
352 schedule();
353 } else {
354 schedule_timeout_interruptible
355 (msecs_to_jiffies(timeout));
356 }
357 }
358
359 remove_wait_queue(&state->wq, &wait);
360 try_to_freeze();
361 return state->restart;
362 }
363
364 /* ------------------------------------------------------------------------ */
365
366 static int msp_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
367 {
368 struct msp_state *state = to_state(sd);
369
370 switch (ctrl->id) {
371 case V4L2_CID_AUDIO_VOLUME:
372 ctrl->value = state->volume;
373 break;
374
375 case V4L2_CID_AUDIO_MUTE:
376 ctrl->value = state->muted;
377 break;
378
379 case V4L2_CID_AUDIO_BALANCE:
380 if (!state->has_sound_processing)
381 return -EINVAL;
382 ctrl->value = state->balance;
383 break;
384
385 case V4L2_CID_AUDIO_BASS:
386 if (!state->has_sound_processing)
387 return -EINVAL;
388 ctrl->value = state->bass;
389 break;
390
391 case V4L2_CID_AUDIO_TREBLE:
392 if (!state->has_sound_processing)
393 return -EINVAL;
394 ctrl->value = state->treble;
395 break;
396
397 case V4L2_CID_AUDIO_LOUDNESS:
398 if (!state->has_sound_processing)
399 return -EINVAL;
400 ctrl->value = state->loudness;
401 break;
402
403 default:
404 return -EINVAL;
405 }
406 return 0;
407 }
408
409 static int msp_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
410 {
411 struct msp_state *state = to_state(sd);
412 struct i2c_client *client = v4l2_get_subdevdata(sd);
413
414 switch (ctrl->id) {
415 case V4L2_CID_AUDIO_VOLUME:
416 state->volume = ctrl->value;
417 if (state->volume == 0)
418 state->balance = 32768;
419 break;
420
421 case V4L2_CID_AUDIO_MUTE:
422 if (ctrl->value < 0 || ctrl->value >= 2)
423 return -ERANGE;
424 state->muted = ctrl->value;
425 break;
426
427 case V4L2_CID_AUDIO_BASS:
428 if (!state->has_sound_processing)
429 return -EINVAL;
430 state->bass = ctrl->value;
431 break;
432
433 case V4L2_CID_AUDIO_TREBLE:
434 if (!state->has_sound_processing)
435 return -EINVAL;
436 state->treble = ctrl->value;
437 break;
438
439 case V4L2_CID_AUDIO_LOUDNESS:
440 if (!state->has_sound_processing)
441 return -EINVAL;
442 state->loudness = ctrl->value;
443 break;
444
445 case V4L2_CID_AUDIO_BALANCE:
446 if (!state->has_sound_processing)
447 return -EINVAL;
448 state->balance = ctrl->value;
449 break;
450
451 default:
452 return -EINVAL;
453 }
454 msp_set_audio(client);
455 return 0;
456 }
457
458 /* --- v4l2 ioctls --- */
459 static int msp_s_radio(struct v4l2_subdev *sd)
460 {
461 struct msp_state *state = to_state(sd);
462 struct i2c_client *client = v4l2_get_subdevdata(sd);
463
464 if (state->radio)
465 return 0;
466 state->radio = 1;
467 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
468 state->watch_stereo = 0;
469 switch (state->opmode) {
470 case OPMODE_MANUAL:
471 /* set msp3400 to FM radio mode */
472 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
473 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
474 MSP_CARRIER(10.7));
475 msp_set_audio(client);
476 break;
477 case OPMODE_AUTODETECT:
478 case OPMODE_AUTOSELECT:
479 /* the thread will do for us */
480 msp_wake_thread(client);
481 break;
482 }
483 return 0;
484 }
485
486 static int msp_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *freq)
487 {
488 struct i2c_client *client = v4l2_get_subdevdata(sd);
489
490 /* new channel -- kick audio carrier scan */
491 msp_wake_thread(client);
492 return 0;
493 }
494
495 static int msp_s_std(struct v4l2_subdev *sd, v4l2_std_id id)
496 {
497 struct msp_state *state = to_state(sd);
498 struct i2c_client *client = v4l2_get_subdevdata(sd);
499 int update = state->radio || state->v4l2_std != id;
500
501 state->v4l2_std = id;
502 state->radio = 0;
503 if (update)
504 msp_wake_thread(client);
505 return 0;
506 }
507
508 static int msp_s_routing(struct v4l2_subdev *sd,
509 u32 input, u32 output, u32 config)
510 {
511 struct msp_state *state = to_state(sd);
512 struct i2c_client *client = v4l2_get_subdevdata(sd);
513 int tuner = (input >> 3) & 1;
514 int sc_in = input & 0x7;
515 int sc1_out = output & 0xf;
516 int sc2_out = (output >> 4) & 0xf;
517 u16 val, reg;
518 int i;
519 int extern_input = 1;
520
521 if (state->route_in == input && state->route_out == output)
522 return 0;
523 state->route_in = input;
524 state->route_out = output;
525 /* check if the tuner input is used */
526 for (i = 0; i < 5; i++) {
527 if (((input >> (4 + i * 4)) & 0xf) == 0)
528 extern_input = 0;
529 }
530 state->mode = extern_input ? MSP_MODE_EXTERN : MSP_MODE_AM_DETECT;
531 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
532 msp_set_scart(client, sc_in, 0);
533 msp_set_scart(client, sc1_out, 1);
534 msp_set_scart(client, sc2_out, 2);
535 msp_set_audmode(client);
536 reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb;
537 val = msp_read_dem(client, reg);
538 msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8));
539 /* wake thread when a new input is chosen */
540 msp_wake_thread(client);
541 return 0;
542 }
543
544 static int msp_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
545 {
546 struct msp_state *state = to_state(sd);
547 struct i2c_client *client = v4l2_get_subdevdata(sd);
548
549 if (state->radio)
550 return 0;
551 if (state->opmode == OPMODE_AUTOSELECT)
552 msp_detect_stereo(client);
553 vt->audmode = state->audmode;
554 vt->rxsubchans = state->rxsubchans;
555 vt->capability |= V4L2_TUNER_CAP_STEREO |
556 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
557 return 0;
558 }
559
560 static int msp_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
561 {
562 struct msp_state *state = to_state(sd);
563 struct i2c_client *client = v4l2_get_subdevdata(sd);
564
565 if (state->radio) /* TODO: add mono/stereo support for radio */
566 return 0;
567 if (state->audmode == vt->audmode)
568 return 0;
569 state->audmode = vt->audmode;
570 /* only set audmode */
571 msp_set_audmode(client);
572 return 0;
573 }
574
575 static int msp_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq)
576 {
577 struct msp_state *state = to_state(sd);
578 struct i2c_client *client = v4l2_get_subdevdata(sd);
579
580 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", freq);
581
582 switch (freq) {
583 case 1024000:
584 state->i2s_mode = 0;
585 break;
586 case 2048000:
587 state->i2s_mode = 1;
588 break;
589 default:
590 return -EINVAL;
591 }
592 return 0;
593 }
594
595 static int msp_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
596 {
597 struct msp_state *state = to_state(sd);
598
599 switch (qc->id) {
600 case V4L2_CID_AUDIO_VOLUME:
601 return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880);
602 case V4L2_CID_AUDIO_MUTE:
603 return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
604 default:
605 break;
606 }
607 if (!state->has_sound_processing)
608 return -EINVAL;
609 switch (qc->id) {
610 case V4L2_CID_AUDIO_LOUDNESS:
611 return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
612 case V4L2_CID_AUDIO_BALANCE:
613 case V4L2_CID_AUDIO_BASS:
614 case V4L2_CID_AUDIO_TREBLE:
615 return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
616 default:
617 return -EINVAL;
618 }
619 return 0;
620 }
621
622 static int msp_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
623 {
624 struct msp_state *state = to_state(sd);
625 struct i2c_client *client = v4l2_get_subdevdata(sd);
626
627 return v4l2_chip_ident_i2c_client(client, chip, state->ident,
628 (state->rev1 << 16) | state->rev2);
629 }
630
631 static int msp_log_status(struct v4l2_subdev *sd)
632 {
633 struct msp_state *state = to_state(sd);
634 struct i2c_client *client = v4l2_get_subdevdata(sd);
635 const char *p;
636
637 if (state->opmode == OPMODE_AUTOSELECT)
638 msp_detect_stereo(client);
639 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
640 client->name, state->rev1, state->rev2);
641 v4l_info(client, "Audio: volume %d%s\n",
642 state->volume, state->muted ? " (muted)" : "");
643 if (state->has_sound_processing) {
644 v4l_info(client, "Audio: balance %d bass %d treble %d loudness %s\n",
645 state->balance, state->bass,
646 state->treble,
647 state->loudness ? "on" : "off");
648 }
649 switch (state->mode) {
650 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
651 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
652 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono/stereo"; break;
653 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
654 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
655 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
656 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
657 case MSP_MODE_BTSC: p = "BTSC"; break;
658 case MSP_MODE_EXTERN: p = "External input"; break;
659 default: p = "unknown"; break;
660 }
661 if (state->mode == MSP_MODE_EXTERN) {
662 v4l_info(client, "Mode: %s\n", p);
663 } else if (state->opmode == OPMODE_MANUAL) {
664 v4l_info(client, "Mode: %s (%s%s)\n", p,
665 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
666 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
667 } else {
668 if (state->opmode == OPMODE_AUTODETECT)
669 v4l_info(client, "Mode: %s\n", p);
670 v4l_info(client, "Standard: %s (%s%s)\n",
671 msp_standard_std_name(state->std),
672 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
673 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
674 }
675 v4l_info(client, "Audmode: 0x%04x\n", state->audmode);
676 v4l_info(client, "Routing: 0x%08x (input) 0x%08x (output)\n",
677 state->route_in, state->route_out);
678 v4l_info(client, "ACB: 0x%04x\n", state->acb);
679 return 0;
680 }
681
682 static int msp_suspend(struct i2c_client *client, pm_message_t state)
683 {
684 v4l_dbg(1, msp_debug, client, "suspend\n");
685 msp_reset(client);
686 return 0;
687 }
688
689 static int msp_resume(struct i2c_client *client)
690 {
691 v4l_dbg(1, msp_debug, client, "resume\n");
692 msp_wake_thread(client);
693 return 0;
694 }
695
696 /* ----------------------------------------------------------------------- */
697
698 static const struct v4l2_subdev_core_ops msp_core_ops = {
699 .log_status = msp_log_status,
700 .g_chip_ident = msp_g_chip_ident,
701 .g_ctrl = msp_g_ctrl,
702 .s_ctrl = msp_s_ctrl,
703 .queryctrl = msp_queryctrl,
704 .s_std = msp_s_std,
705 };
706
707 static const struct v4l2_subdev_tuner_ops msp_tuner_ops = {
708 .s_frequency = msp_s_frequency,
709 .g_tuner = msp_g_tuner,
710 .s_tuner = msp_s_tuner,
711 .s_radio = msp_s_radio,
712 };
713
714 static const struct v4l2_subdev_audio_ops msp_audio_ops = {
715 .s_routing = msp_s_routing,
716 .s_i2s_clock_freq = msp_s_i2s_clock_freq,
717 };
718
719 static const struct v4l2_subdev_ops msp_ops = {
720 .core = &msp_core_ops,
721 .tuner = &msp_tuner_ops,
722 .audio = &msp_audio_ops,
723 };
724
725 /* ----------------------------------------------------------------------- */
726
727 static int msp_probe(struct i2c_client *client, const struct i2c_device_id *id)
728 {
729 struct msp_state *state;
730 struct v4l2_subdev *sd;
731 int (*thread_func)(void *data) = NULL;
732 int msp_hard;
733 int msp_family;
734 int msp_revision;
735 int msp_product, msp_prod_hi, msp_prod_lo;
736 int msp_rom;
737
738 if (!id)
739 strlcpy(client->name, "msp3400", sizeof(client->name));
740
741 if (msp_reset(client) == -1) {
742 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
743 return -ENODEV;
744 }
745
746 state = kzalloc(sizeof(*state), GFP_KERNEL);
747 if (!state)
748 return -ENOMEM;
749
750 sd = &state->sd;
751 v4l2_i2c_subdev_init(sd, client, &msp_ops);
752
753 state->v4l2_std = V4L2_STD_NTSC;
754 state->audmode = V4L2_TUNER_MODE_STEREO;
755 state->volume = 58880; /* 0db gain */
756 state->balance = 32768; /* 0db gain */
757 state->bass = 32768;
758 state->treble = 32768;
759 state->loudness = 0;
760 state->input = -1;
761 state->muted = 0;
762 state->i2s_mode = 0;
763 init_waitqueue_head(&state->wq);
764 /* These are the reset input/output positions */
765 state->route_in = MSP_INPUT_DEFAULT;
766 state->route_out = MSP_OUTPUT_DEFAULT;
767
768 state->rev1 = msp_read_dsp(client, 0x1e);
769 if (state->rev1 != -1)
770 state->rev2 = msp_read_dsp(client, 0x1f);
771 v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n",
772 state->rev1, state->rev2);
773 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
774 v4l_dbg(1, msp_debug, client,
775 "not an msp3400 (cannot read chip version)\n");
776 kfree(state);
777 return -ENODEV;
778 }
779
780 msp_set_audio(client);
781
782 msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
783 msp_product = (state->rev2 >> 8) & 0xff;
784 msp_prod_hi = msp_product / 10;
785 msp_prod_lo = msp_product % 10;
786 msp_revision = (state->rev1 & 0x0f) + '@';
787 msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
788 msp_rom = state->rev2 & 0x1f;
789 /* Rev B=2, C=3, D=4, G=7 */
790 state->ident = msp_family * 10000 + 4000 + msp_product * 10 +
791 msp_revision - '@';
792
793 /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
794 state->has_nicam =
795 msp_prod_hi == 1 || msp_prod_hi == 5;
796 /* Has radio support: was added with revision G */
797 state->has_radio =
798 msp_revision >= 'G';
799 /* Has headphones output: not for stripped down products */
800 state->has_headphones =
801 msp_prod_lo < 5;
802 /* Has scart2 input: not in stripped down products of the '3' family */
803 state->has_scart2 =
804 msp_family >= 4 || msp_prod_lo < 7;
805 /* Has scart3 input: not in stripped down products of the '3' family */
806 state->has_scart3 =
807 msp_family >= 4 || msp_prod_lo < 5;
808 /* Has scart4 input: not in pre D revisions, not in stripped D revs */
809 state->has_scart4 =
810 msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
811 /* Has scart2 output: not in stripped down products of
812 * the '3' family */
813 state->has_scart2_out =
814 msp_family >= 4 || msp_prod_lo < 5;
815 /* Has scart2 a volume control? Not in pre-D revisions. */
816 state->has_scart2_out_volume =
817 msp_revision > 'C' && state->has_scart2_out;
818 /* Has a configurable i2s out? */
819 state->has_i2s_conf =
820 msp_revision >= 'G' && msp_prod_lo < 7;
821 /* Has subwoofer output: not in pre-D revs and not in stripped down
822 * products */
823 state->has_subwoofer =
824 msp_revision >= 'D' && msp_prod_lo < 5;
825 /* Has soundprocessing (bass/treble/balance/loudness/equalizer):
826 * not in stripped down products */
827 state->has_sound_processing =
828 msp_prod_lo < 7;
829 /* Has Virtual Dolby Surround: only in msp34x1 */
830 state->has_virtual_dolby_surround =
831 msp_revision == 'G' && msp_prod_lo == 1;
832 /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
833 state->has_dolby_pro_logic =
834 msp_revision == 'G' && msp_prod_lo == 2;
835 /* The msp343xG supports BTSC only and cannot do Automatic Standard
836 * Detection. */
837 state->force_btsc =
838 msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3;
839
840 state->opmode = opmode;
841 if (state->opmode == OPMODE_AUTO) {
842 /* MSP revision G and up have both autodetect and autoselect */
843 if (msp_revision >= 'G')
844 state->opmode = OPMODE_AUTOSELECT;
845 /* MSP revision D and up have autodetect */
846 else if (msp_revision >= 'D')
847 state->opmode = OPMODE_AUTODETECT;
848 else
849 state->opmode = OPMODE_MANUAL;
850 }
851
852 /* hello world :-) */
853 v4l_info(client, "MSP%d4%02d%c-%c%d found @ 0x%x (%s)\n",
854 msp_family, msp_product,
855 msp_revision, msp_hard, msp_rom,
856 client->addr << 1, client->adapter->name);
857 v4l_info(client, "%s ", client->name);
858 if (state->has_nicam && state->has_radio)
859 printk(KERN_CONT "supports nicam and radio, ");
860 else if (state->has_nicam)
861 printk(KERN_CONT "supports nicam, ");
862 else if (state->has_radio)
863 printk(KERN_CONT "supports radio, ");
864 printk(KERN_CONT "mode is ");
865
866 /* version-specific initialization */
867 switch (state->opmode) {
868 case OPMODE_MANUAL:
869 printk(KERN_CONT "manual");
870 thread_func = msp3400c_thread;
871 break;
872 case OPMODE_AUTODETECT:
873 printk(KERN_CONT "autodetect");
874 thread_func = msp3410d_thread;
875 break;
876 case OPMODE_AUTOSELECT:
877 printk(KERN_CONT "autodetect and autoselect");
878 thread_func = msp34xxg_thread;
879 break;
880 }
881 printk(KERN_CONT "\n");
882
883 /* startup control thread if needed */
884 if (thread_func) {
885 state->kthread = kthread_run(thread_func, client, "msp34xx");
886
887 if (IS_ERR(state->kthread))
888 v4l_warn(client, "kernel_thread() failed\n");
889 msp_wake_thread(client);
890 }
891 return 0;
892 }
893
894 static int msp_remove(struct i2c_client *client)
895 {
896 struct msp_state *state = to_state(i2c_get_clientdata(client));
897
898 v4l2_device_unregister_subdev(&state->sd);
899 /* shutdown control thread */
900 if (state->kthread) {
901 state->restart = 1;
902 kthread_stop(state->kthread);
903 }
904 msp_reset(client);
905
906 kfree(state);
907 return 0;
908 }
909
910 /* ----------------------------------------------------------------------- */
911
912 static const struct i2c_device_id msp_id[] = {
913 { "msp3400", 0 },
914 { }
915 };
916 MODULE_DEVICE_TABLE(i2c, msp_id);
917
918 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
919 .name = "msp3400",
920 .probe = msp_probe,
921 .remove = msp_remove,
922 .suspend = msp_suspend,
923 .resume = msp_resume,
924 .id_table = msp_id,
925 };
926
927 /*
928 * Overrides for Emacs so that we follow Linus's tabbing style.
929 * ---------------------------------------------------------------------------
930 * Local variables:
931 * c-basic-offset: 8
932 * End:
933 */
Support for the Chinese Samsung S3C2440 based development boards