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msp3400: fix mute audio regression
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / media / video / msp3400-driver.c
blob4897d90f6a25893c17d249a692758ced2f563dc1
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 /* ------------------------------------------------------------------------ */
287
288 static void msp_wake_thread(struct i2c_client *client)
289 {
290 struct msp_state *state = to_state(i2c_get_clientdata(client));
291
292 if (NULL == state->kthread)
293 return;
294 state->watch_stereo = 0;
295 state->restart = 1;
296 wake_up_interruptible(&state->wq);
297 }
298
299 int msp_sleep(struct msp_state *state, int timeout)
300 {
301 DECLARE_WAITQUEUE(wait, current);
302
303 add_wait_queue(&state->wq, &wait);
304 if (!kthread_should_stop()) {
305 if (timeout < 0) {
306 set_current_state(TASK_INTERRUPTIBLE);
307 schedule();
308 } else {
309 schedule_timeout_interruptible
310 (msecs_to_jiffies(timeout));
311 }
312 }
313
314 remove_wait_queue(&state->wq, &wait);
315 try_to_freeze();
316 return state->restart;
317 }
318
319 /* ------------------------------------------------------------------------ */
320
321 static int msp_s_ctrl(struct v4l2_ctrl *ctrl)
322 {
323 struct msp_state *state = ctrl_to_state(ctrl);
324 struct i2c_client *client = v4l2_get_subdevdata(&state->sd);
325 int val = ctrl->val;
326
327 switch (ctrl->id) {
328 case V4L2_CID_AUDIO_VOLUME: {
329 /* audio volume cluster */
330 int reallymuted = state->muted->val | state->scan_in_progress;
331
332 if (!reallymuted)
333 val = (val * 0x7f / 65535) << 8;
334
335 v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n",
336 state->muted->val ? "on" : "off",
337 state->scan_in_progress ? "yes" : "no",
338 state->volume->val);
339
340 msp_write_dsp(client, 0x0000, val);
341 msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1));
342 if (state->has_scart2_out_volume)
343 msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1));
344 if (state->has_headphones)
345 msp_write_dsp(client, 0x0006, val);
346 break;
347 }
348
349 case V4L2_CID_AUDIO_BASS:
350 val = ((val - 32768) * 0x60 / 65535) << 8;
351 msp_write_dsp(client, 0x0002, val);
352 if (state->has_headphones)
353 msp_write_dsp(client, 0x0031, val);
354 break;
355
356 case V4L2_CID_AUDIO_TREBLE:
357 val = ((val - 32768) * 0x60 / 65535) << 8;
358 msp_write_dsp(client, 0x0003, val);
359 if (state->has_headphones)
360 msp_write_dsp(client, 0x0032, val);
361 break;
362
363 case V4L2_CID_AUDIO_LOUDNESS:
364 val = val ? ((5 * 4) << 8) : 0;
365 msp_write_dsp(client, 0x0004, val);
366 if (state->has_headphones)
367 msp_write_dsp(client, 0x0033, val);
368 break;
369
370 case V4L2_CID_AUDIO_BALANCE:
371 val = (u8)((val / 256) - 128);
372 msp_write_dsp(client, 0x0001, val << 8);
373 if (state->has_headphones)
374 msp_write_dsp(client, 0x0030, val << 8);
375 break;
376
377 default:
378 return -EINVAL;
379 }
380 return 0;
381 }
382
383 void msp_update_volume(struct msp_state *state)
384 {
385 /* Force an update of the volume/mute cluster */
386 v4l2_ctrl_lock(state->volume);
387 state->volume->val = state->volume->cur.val;
388 state->muted->val = state->muted->cur.val;
389 msp_s_ctrl(state->volume);
390 v4l2_ctrl_unlock(state->volume);
391 }
392
393 /* --- v4l2 ioctls --- */
394 static int msp_s_radio(struct v4l2_subdev *sd)
395 {
396 struct msp_state *state = to_state(sd);
397 struct i2c_client *client = v4l2_get_subdevdata(sd);
398
399 if (state->radio)
400 return 0;
401 state->radio = 1;
402 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
403 state->watch_stereo = 0;
404 switch (state->opmode) {
405 case OPMODE_MANUAL:
406 /* set msp3400 to FM radio mode */
407 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
408 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
409 MSP_CARRIER(10.7));
410 msp_update_volume(state);
411 break;
412 case OPMODE_AUTODETECT:
413 case OPMODE_AUTOSELECT:
414 /* the thread will do for us */
415 msp_wake_thread(client);
416 break;
417 }
418 return 0;
419 }
420
421 static int msp_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *freq)
422 {
423 struct i2c_client *client = v4l2_get_subdevdata(sd);
424
425 /* new channel -- kick audio carrier scan */
426 msp_wake_thread(client);
427 return 0;
428 }
429
430 static int msp_s_std(struct v4l2_subdev *sd, v4l2_std_id id)
431 {
432 struct msp_state *state = to_state(sd);
433 struct i2c_client *client = v4l2_get_subdevdata(sd);
434 int update = state->radio || state->v4l2_std != id;
435
436 state->v4l2_std = id;
437 state->radio = 0;
438 if (update)
439 msp_wake_thread(client);
440 return 0;
441 }
442
443 static int msp_s_routing(struct v4l2_subdev *sd,
444 u32 input, u32 output, u32 config)
445 {
446 struct msp_state *state = to_state(sd);
447 struct i2c_client *client = v4l2_get_subdevdata(sd);
448 int tuner = (input >> 3) & 1;
449 int sc_in = input & 0x7;
450 int sc1_out = output & 0xf;
451 int sc2_out = (output >> 4) & 0xf;
452 u16 val, reg;
453 int i;
454 int extern_input = 1;
455
456 if (state->route_in == input && state->route_out == output)
457 return 0;
458 state->route_in = input;
459 state->route_out = output;
460 /* check if the tuner input is used */
461 for (i = 0; i < 5; i++) {
462 if (((input >> (4 + i * 4)) & 0xf) == 0)
463 extern_input = 0;
464 }
465 state->mode = extern_input ? MSP_MODE_EXTERN : MSP_MODE_AM_DETECT;
466 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
467 msp_set_scart(client, sc_in, 0);
468 msp_set_scart(client, sc1_out, 1);
469 msp_set_scart(client, sc2_out, 2);
470 msp_set_audmode(client);
471 reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb;
472 val = msp_read_dem(client, reg);
473 msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8));
474 /* wake thread when a new input is chosen */
475 msp_wake_thread(client);
476 return 0;
477 }
478
479 static int msp_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
480 {
481 struct msp_state *state = to_state(sd);
482 struct i2c_client *client = v4l2_get_subdevdata(sd);
483
484 if (state->radio)
485 return 0;
486 if (state->opmode == OPMODE_AUTOSELECT)
487 msp_detect_stereo(client);
488 vt->audmode = state->audmode;
489 vt->rxsubchans = state->rxsubchans;
490 vt->capability |= V4L2_TUNER_CAP_STEREO |
491 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
492 return 0;
493 }
494
495 static int msp_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
496 {
497 struct msp_state *state = to_state(sd);
498 struct i2c_client *client = v4l2_get_subdevdata(sd);
499
500 if (state->radio) /* TODO: add mono/stereo support for radio */
501 return 0;
502 if (state->audmode == vt->audmode)
503 return 0;
504 state->audmode = vt->audmode;
505 /* only set audmode */
506 msp_set_audmode(client);
507 return 0;
508 }
509
510 static int msp_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq)
511 {
512 struct msp_state *state = to_state(sd);
513 struct i2c_client *client = v4l2_get_subdevdata(sd);
514
515 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", freq);
516
517 switch (freq) {
518 case 1024000:
519 state->i2s_mode = 0;
520 break;
521 case 2048000:
522 state->i2s_mode = 1;
523 break;
524 default:
525 return -EINVAL;
526 }
527 return 0;
528 }
529
530 static int msp_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
531 {
532 struct msp_state *state = to_state(sd);
533 struct i2c_client *client = v4l2_get_subdevdata(sd);
534
535 return v4l2_chip_ident_i2c_client(client, chip, state->ident,
536 (state->rev1 << 16) | state->rev2);
537 }
538
539 static int msp_log_status(struct v4l2_subdev *sd)
540 {
541 struct msp_state *state = to_state(sd);
542 struct i2c_client *client = v4l2_get_subdevdata(sd);
543 const char *p;
544 char prefix[V4L2_SUBDEV_NAME_SIZE + 20];
545
546 if (state->opmode == OPMODE_AUTOSELECT)
547 msp_detect_stereo(client);
548 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
549 client->name, state->rev1, state->rev2);
550 snprintf(prefix, sizeof(prefix), "%s: Audio: ", sd->name);
551 v4l2_ctrl_handler_log_status(&state->hdl, prefix);
552 switch (state->mode) {
553 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
554 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
555 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono/stereo"; break;
556 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
557 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
558 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
559 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
560 case MSP_MODE_BTSC: p = "BTSC"; break;
561 case MSP_MODE_EXTERN: p = "External input"; break;
562 default: p = "unknown"; break;
563 }
564 if (state->mode == MSP_MODE_EXTERN) {
565 v4l_info(client, "Mode: %s\n", p);
566 } else if (state->opmode == OPMODE_MANUAL) {
567 v4l_info(client, "Mode: %s (%s%s)\n", p,
568 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
569 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
570 } else {
571 if (state->opmode == OPMODE_AUTODETECT)
572 v4l_info(client, "Mode: %s\n", p);
573 v4l_info(client, "Standard: %s (%s%s)\n",
574 msp_standard_std_name(state->std),
575 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
576 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
577 }
578 v4l_info(client, "Audmode: 0x%04x\n", state->audmode);
579 v4l_info(client, "Routing: 0x%08x (input) 0x%08x (output)\n",
580 state->route_in, state->route_out);
581 v4l_info(client, "ACB: 0x%04x\n", state->acb);
582 return 0;
583 }
584
585 static int msp_suspend(struct i2c_client *client, pm_message_t state)
586 {
587 v4l_dbg(1, msp_debug, client, "suspend\n");
588 msp_reset(client);
589 return 0;
590 }
591
592 static int msp_resume(struct i2c_client *client)
593 {
594 v4l_dbg(1, msp_debug, client, "resume\n");
595 msp_wake_thread(client);
596 return 0;
597 }
598
599 /* ----------------------------------------------------------------------- */
600
601 static const struct v4l2_ctrl_ops msp_ctrl_ops = {
602 .s_ctrl = msp_s_ctrl,
603 };
604
605 static const struct v4l2_subdev_core_ops msp_core_ops = {
606 .log_status = msp_log_status,
607 .g_chip_ident = msp_g_chip_ident,
608 .g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
609 .try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
610 .s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
611 .g_ctrl = v4l2_subdev_g_ctrl,
612 .s_ctrl = v4l2_subdev_s_ctrl,
613 .queryctrl = v4l2_subdev_queryctrl,
614 .querymenu = v4l2_subdev_querymenu,
615 .s_std = msp_s_std,
616 };
617
618 static const struct v4l2_subdev_tuner_ops msp_tuner_ops = {
619 .s_frequency = msp_s_frequency,
620 .g_tuner = msp_g_tuner,
621 .s_tuner = msp_s_tuner,
622 .s_radio = msp_s_radio,
623 };
624
625 static const struct v4l2_subdev_audio_ops msp_audio_ops = {
626 .s_routing = msp_s_routing,
627 .s_i2s_clock_freq = msp_s_i2s_clock_freq,
628 };
629
630 static const struct v4l2_subdev_ops msp_ops = {
631 .core = &msp_core_ops,
632 .tuner = &msp_tuner_ops,
633 .audio = &msp_audio_ops,
634 };
635
636 /* ----------------------------------------------------------------------- */
637
638 static int msp_probe(struct i2c_client *client, const struct i2c_device_id *id)
639 {
640 struct msp_state *state;
641 struct v4l2_subdev *sd;
642 struct v4l2_ctrl_handler *hdl;
643 int (*thread_func)(void *data) = NULL;
644 int msp_hard;
645 int msp_family;
646 int msp_revision;
647 int msp_product, msp_prod_hi, msp_prod_lo;
648 int msp_rom;
649
650 if (!id)
651 strlcpy(client->name, "msp3400", sizeof(client->name));
652
653 if (msp_reset(client) == -1) {
654 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
655 return -ENODEV;
656 }
657
658 state = kzalloc(sizeof(*state), GFP_KERNEL);
659 if (!state)
660 return -ENOMEM;
661
662 sd = &state->sd;
663 v4l2_i2c_subdev_init(sd, client, &msp_ops);
664
665 state->v4l2_std = V4L2_STD_NTSC;
666 state->audmode = V4L2_TUNER_MODE_STEREO;
667 state->input = -1;
668 state->i2s_mode = 0;
669 init_waitqueue_head(&state->wq);
670 /* These are the reset input/output positions */
671 state->route_in = MSP_INPUT_DEFAULT;
672 state->route_out = MSP_OUTPUT_DEFAULT;
673
674 state->rev1 = msp_read_dsp(client, 0x1e);
675 if (state->rev1 != -1)
676 state->rev2 = msp_read_dsp(client, 0x1f);
677 v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n",
678 state->rev1, state->rev2);
679 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
680 v4l_dbg(1, msp_debug, client,
681 "not an msp3400 (cannot read chip version)\n");
682 kfree(state);
683 return -ENODEV;
684 }
685
686 msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
687 msp_product = (state->rev2 >> 8) & 0xff;
688 msp_prod_hi = msp_product / 10;
689 msp_prod_lo = msp_product % 10;
690 msp_revision = (state->rev1 & 0x0f) + '@';
691 msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
692 msp_rom = state->rev2 & 0x1f;
693 /* Rev B=2, C=3, D=4, G=7 */
694 state->ident = msp_family * 10000 + 4000 + msp_product * 10 +
695 msp_revision - '@';
696
697 /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
698 state->has_nicam =
699 msp_prod_hi == 1 || msp_prod_hi == 5;
700 /* Has radio support: was added with revision G */
701 state->has_radio =
702 msp_revision >= 'G';
703 /* Has headphones output: not for stripped down products */
704 state->has_headphones =
705 msp_prod_lo < 5;
706 /* Has scart2 input: not in stripped down products of the '3' family */
707 state->has_scart2 =
708 msp_family >= 4 || msp_prod_lo < 7;
709 /* Has scart3 input: not in stripped down products of the '3' family */
710 state->has_scart3 =
711 msp_family >= 4 || msp_prod_lo < 5;
712 /* Has scart4 input: not in pre D revisions, not in stripped D revs */
713 state->has_scart4 =
714 msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
715 /* Has scart2 output: not in stripped down products of
716 * the '3' family */
717 state->has_scart2_out =
718 msp_family >= 4 || msp_prod_lo < 5;
719 /* Has scart2 a volume control? Not in pre-D revisions. */
720 state->has_scart2_out_volume =
721 msp_revision > 'C' && state->has_scart2_out;
722 /* Has a configurable i2s out? */
723 state->has_i2s_conf =
724 msp_revision >= 'G' && msp_prod_lo < 7;
725 /* Has subwoofer output: not in pre-D revs and not in stripped down
726 * products */
727 state->has_subwoofer =
728 msp_revision >= 'D' && msp_prod_lo < 5;
729 /* Has soundprocessing (bass/treble/balance/loudness/equalizer):
730 * not in stripped down products */
731 state->has_sound_processing =
732 msp_prod_lo < 7;
733 /* Has Virtual Dolby Surround: only in msp34x1 */
734 state->has_virtual_dolby_surround =
735 msp_revision == 'G' && msp_prod_lo == 1;
736 /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
737 state->has_dolby_pro_logic =
738 msp_revision == 'G' && msp_prod_lo == 2;
739 /* The msp343xG supports BTSC only and cannot do Automatic Standard
740 * Detection. */
741 state->force_btsc =
742 msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3;
743
744 state->opmode = opmode;
745 if (state->opmode == OPMODE_AUTO) {
746 /* MSP revision G and up have both autodetect and autoselect */
747 if (msp_revision >= 'G')
748 state->opmode = OPMODE_AUTOSELECT;
749 /* MSP revision D and up have autodetect */
750 else if (msp_revision >= 'D')
751 state->opmode = OPMODE_AUTODETECT;
752 else
753 state->opmode = OPMODE_MANUAL;
754 }
755
756 hdl = &state->hdl;
757 v4l2_ctrl_handler_init(hdl, 6);
758 if (state->has_sound_processing) {
759 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops,
760 V4L2_CID_AUDIO_BASS, 0, 65535, 65535 / 100, 32768);
761 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops,
762 V4L2_CID_AUDIO_TREBLE, 0, 65535, 65535 / 100, 32768);
763 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops,
764 V4L2_CID_AUDIO_LOUDNESS, 0, 1, 1, 0);
765 }
766 state->volume = v4l2_ctrl_new_std(hdl, &msp_ctrl_ops,
767 V4L2_CID_AUDIO_VOLUME, 0, 65535, 65535 / 100, 58880);
768 v4l2_ctrl_new_std(hdl, &msp_ctrl_ops,
769 V4L2_CID_AUDIO_BALANCE, 0, 65535, 65535 / 100, 32768);
770 state->muted = v4l2_ctrl_new_std(hdl, &msp_ctrl_ops,
771 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
772 sd->ctrl_handler = hdl;
773 if (hdl->error) {
774 int err = hdl->error;
775
776 v4l2_ctrl_handler_free(hdl);
777 kfree(state);
778 return err;
779 }
780
781 v4l2_ctrl_cluster(2, &state->volume);
782 v4l2_ctrl_handler_setup(hdl);
783
784 /* hello world :-) */
785 v4l_info(client, "MSP%d4%02d%c-%c%d found @ 0x%x (%s)\n",
786 msp_family, msp_product,
787 msp_revision, msp_hard, msp_rom,
788 client->addr << 1, client->adapter->name);
789 v4l_info(client, "%s ", client->name);
790 if (state->has_nicam && state->has_radio)
791 printk(KERN_CONT "supports nicam and radio, ");
792 else if (state->has_nicam)
793 printk(KERN_CONT "supports nicam, ");
794 else if (state->has_radio)
795 printk(KERN_CONT "supports radio, ");
796 printk(KERN_CONT "mode is ");
797
798 /* version-specific initialization */
799 switch (state->opmode) {
800 case OPMODE_MANUAL:
801 printk(KERN_CONT "manual");
802 thread_func = msp3400c_thread;
803 break;
804 case OPMODE_AUTODETECT:
805 printk(KERN_CONT "autodetect");
806 thread_func = msp3410d_thread;
807 break;
808 case OPMODE_AUTOSELECT:
809 printk(KERN_CONT "autodetect and autoselect");
810 thread_func = msp34xxg_thread;
811 break;
812 }
813 printk(KERN_CONT "\n");
814
815 /* startup control thread if needed */
816 if (thread_func) {
817 state->kthread = kthread_run(thread_func, client, "msp34xx");
818
819 if (IS_ERR(state->kthread))
820 v4l_warn(client, "kernel_thread() failed\n");
821 msp_wake_thread(client);
822 }
823 return 0;
824 }
825
826 static int msp_remove(struct i2c_client *client)
827 {
828 struct msp_state *state = to_state(i2c_get_clientdata(client));
829
830 v4l2_device_unregister_subdev(&state->sd);
831 /* shutdown control thread */
832 if (state->kthread) {
833 state->restart = 1;
834 kthread_stop(state->kthread);
835 }
836 msp_reset(client);
837
838 v4l2_ctrl_handler_free(&state->hdl);
839 kfree(state);
840 return 0;
841 }
842
843 /* ----------------------------------------------------------------------- */
844
845 static const struct i2c_device_id msp_id[] = {
846 { "msp3400", 0 },
847 { }
848 };
849 MODULE_DEVICE_TABLE(i2c, msp_id);
850
851 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
852 .name = "msp3400",
853 .probe = msp_probe,
854 .remove = msp_remove,
855 .suspend = msp_suspend,
856 .resume = msp_resume,
857 .id_table = msp_id,
858 };
859
860 /*
861 * Overrides for Emacs so that we follow Linus's tabbing style.
862 * ---------------------------------------------------------------------------
863 * Local variables:
864 * c-basic-offset: 8
865 * End:
866 */
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree