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[PATCH] W1: possible cleanups
[linux-2.6/verdex.git] / drivers / media / video / msp3400-kthreads.c
blob633a1021378930261d3ff20f8b4edfc42a846fa5
1 /*
2 * Programming the mspx4xx sound processor family
3 *
4 * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 */
20
21
22 #include <linux/kernel.h>
23 #include <linux/module.h>
24 #include <linux/slab.h>
25 #include <linux/i2c.h>
26 #include <linux/videodev.h>
27 #include <linux/videodev2.h>
28 #include <media/v4l2-common.h>
29 #include <media/msp3400.h>
30 #include <linux/kthread.h>
31 #include <linux/suspend.h>
32 #include "msp3400-driver.h"
33
34 /* this one uses the automatic sound standard detection of newer msp34xx
35 chip versions */
36 static struct {
37 int retval;
38 int main, second;
39 char *name;
40 } msp_stdlist[] = {
41 { 0x0000, 0, 0, "could not detect sound standard" },
42 { 0x0001, 0, 0, "autodetect start" },
43 { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72 M Dual FM-Stereo" },
44 { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74 B/G Dual FM-Stereo" },
45 { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25 D/K1 Dual FM-Stereo" },
46 { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74 D/K2 Dual FM-Stereo" },
47 { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 D/K FM-Mono (HDEV3)" },
48 { 0x0007, MSP_CARRIER(6.5), MSP_CARRIER(5.7421875), "6.5/5.74 D/K3 Dual FM-Stereo" },
49 { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" },
50 { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" },
51 { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" },
52 { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" },
53 { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" },
54 { 0x000d, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV3)" },
55 { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" },
56 { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" },
57 { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" },
58 { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" },
59 { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" },
60 { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" },
61 { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" },
62 { -1, 0, 0, NULL }, /* EOF */
63 };
64
65 static struct msp3400c_init_data_dem {
66 int fir1[6];
67 int fir2[6];
68 int cdo1;
69 int cdo2;
70 int ad_cv;
71 int mode_reg;
72 int dsp_src;
73 int dsp_matrix;
74 } msp3400c_init_data[] = {
75 { /* AM (for carrier detect / msp3400) */
76 {75, 19, 36, 35, 39, 40},
77 {75, 19, 36, 35, 39, 40},
78 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
79 0x00d0, 0x0500, 0x0020, 0x3000
80 },{ /* AM (for carrier detect / msp3410) */
81 {-1, -1, -8, 2, 59, 126},
82 {-1, -1, -8, 2, 59, 126},
83 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
84 0x00d0, 0x0100, 0x0020, 0x3000
85 },{ /* FM Radio */
86 {-8, -8, 4, 6, 78, 107},
87 {-8, -8, 4, 6, 78, 107},
88 MSP_CARRIER(10.7), MSP_CARRIER(10.7),
89 0x00d0, 0x0480, 0x0020, 0x3000
90 },{ /* Terrestial FM-mono + FM-stereo */
91 {3, 18, 27, 48, 66, 72},
92 {3, 18, 27, 48, 66, 72},
93 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
94 0x00d0, 0x0480, 0x0030, 0x3000
95 },{ /* Sat FM-mono */
96 { 1, 9, 14, 24, 33, 37},
97 { 3, 18, 27, 48, 66, 72},
98 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
99 0x00c6, 0x0480, 0x0000, 0x3000
100 },{ /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */
101 {-2, -8, -10, 10, 50, 86},
102 {3, 18, 27, 48, 66, 72},
103 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
104 0x00d0, 0x0040, 0x0120, 0x3000
105 },{ /* NICAM/FM -- I (6.0/6.552) */
106 {2, 4, -6, -4, 40, 94},
107 {3, 18, 27, 48, 66, 72},
108 MSP_CARRIER(6.0), MSP_CARRIER(6.0),
109 0x00d0, 0x0040, 0x0120, 0x3000
110 },{ /* NICAM/AM -- L (6.5/5.85) */
111 {-2, -8, -10, 10, 50, 86},
112 {-4, -12, -9, 23, 79, 126},
113 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
114 0x00c6, 0x0140, 0x0120, 0x7c00
115 },
116 };
117
118 struct msp3400c_carrier_detect {
119 int cdo;
120 char *name;
121 };
122
123 static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = {
124 /* main carrier */
125 { MSP_CARRIER(4.5), "4.5 NTSC" },
126 { MSP_CARRIER(5.5), "5.5 PAL B/G" },
127 { MSP_CARRIER(6.0), "6.0 PAL I" },
128 { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" }
129 };
130
131 static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = {
132 /* PAL B/G */
133 { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" },
134 { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" }
135 };
136
137 static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = {
138 /* PAL SAT / SECAM */
139 { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" },
140 { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" },
141 { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" },
142 { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" },
143 { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" },
144 { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" },
145 };
146
147 /* ------------------------------------------------------------------------ */
148
149 const char *msp_standard_std_name(int std)
150 {
151 int i;
152
153 for (i = 0; msp_stdlist[i].name != NULL; i++)
154 if (msp_stdlist[i].retval == std)
155 return msp_stdlist[i].name;
156 return "unknown";
157 }
158
159 static void msp_set_source(struct i2c_client *client, u16 src)
160 {
161 struct msp_state *state = i2c_get_clientdata(client);
162
163 if (msp_dolby) {
164 msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */
165 msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */
166 } else {
167 msp_write_dsp(client, 0x0008, src);
168 msp_write_dsp(client, 0x0009, src);
169 }
170 msp_write_dsp(client, 0x000a, src);
171 msp_write_dsp(client, 0x000b, src);
172 msp_write_dsp(client, 0x000c, src);
173 if (state->has_scart2_out)
174 msp_write_dsp(client, 0x0041, src);
175 }
176
177 void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2)
178 {
179 msp_write_dem(client, 0x0093, cdo1 & 0xfff);
180 msp_write_dem(client, 0x009b, cdo1 >> 12);
181 msp_write_dem(client, 0x00a3, cdo2 & 0xfff);
182 msp_write_dem(client, 0x00ab, cdo2 >> 12);
183 msp_write_dem(client, 0x0056, 0); /* LOAD_REG_1/2 */
184 }
185
186 void msp3400c_set_mode(struct i2c_client *client, int mode)
187 {
188 struct msp_state *state = i2c_get_clientdata(client);
189 struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode];
190 int tuner = (state->routing.input >> 3) & 1;
191 int i;
192
193 v4l_dbg(1, msp_debug, client, "set_mode: %d\n", mode);
194 state->mode = mode;
195 state->rxsubchans = V4L2_TUNER_SUB_MONO;
196
197 msp_write_dem(client, 0x00bb, data->ad_cv | (tuner ? 0x100 : 0));
198
199 for (i = 5; i >= 0; i--) /* fir 1 */
200 msp_write_dem(client, 0x0001, data->fir1[i]);
201
202 msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */
203 msp_write_dem(client, 0x0005, 0x0040);
204 msp_write_dem(client, 0x0005, 0x0000);
205 for (i = 5; i >= 0; i--)
206 msp_write_dem(client, 0x0005, data->fir2[i]);
207
208 msp_write_dem(client, 0x0083, data->mode_reg);
209
210 msp3400c_set_carrier(client, data->cdo1, data->cdo2);
211
212 msp_set_source(client, data->dsp_src);
213 /* set prescales */
214
215 /* volume prescale for SCART (AM mono input) */
216 msp_write_dsp(client, 0x000d, 0x1900);
217 msp_write_dsp(client, 0x000e, data->dsp_matrix);
218 if (state->has_nicam) /* nicam prescale */
219 msp_write_dsp(client, 0x0010, 0x5a00);
220 }
221
222 /* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP,
223 nor do they support stereo BTSC. */
224 static void msp3400c_set_audmode(struct i2c_client *client)
225 {
226 static char *strmode[] = { "mono", "stereo", "lang2", "lang1", "lang1+lang2" };
227 struct msp_state *state = i2c_get_clientdata(client);
228 char *modestr = (state->audmode >= 0 && state->audmode < 5) ?
229 strmode[state->audmode] : "unknown";
230 int src = 0; /* channel source: FM/AM, nicam or SCART */
231 int audmode = state->audmode;
232
233 if (state->opmode == OPMODE_AUTOSELECT) {
234 /* this method would break everything, let's make sure
235 * it's never called
236 */
237 v4l_dbg(1, msp_debug, client,
238 "set_audmode called with mode=%d instead of set_source (ignored)\n",
239 state->audmode);
240 return;
241 }
242
243 /* Note: for the C and D revs no NTSC stereo + SAP is possible as
244 the hardware does not support SAP. So the rxsubchans combination
245 of STEREO | LANG2 does not occur. */
246
247 /* switch to mono if only mono is available */
248 if (state->rxsubchans == V4L2_TUNER_SUB_MONO)
249 audmode = V4L2_TUNER_MODE_MONO;
250 /* if bilingual */
251 else if (state->rxsubchans & V4L2_TUNER_SUB_LANG2) {
252 /* and mono or stereo, then fallback to lang1 */
253 if (audmode == V4L2_TUNER_MODE_MONO ||
254 audmode == V4L2_TUNER_MODE_STEREO)
255 audmode = V4L2_TUNER_MODE_LANG1;
256 }
257 /* if stereo, and audmode is not mono, then switch to stereo */
258 else if (audmode != V4L2_TUNER_MODE_MONO)
259 audmode = V4L2_TUNER_MODE_STEREO;
260
261 /* switch demodulator */
262 switch (state->mode) {
263 case MSP_MODE_FM_TERRA:
264 v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr);
265 switch (audmode) {
266 case V4L2_TUNER_MODE_STEREO:
267 msp_write_dsp(client, 0x000e, 0x3001);
268 break;
269 case V4L2_TUNER_MODE_MONO:
270 case V4L2_TUNER_MODE_LANG1:
271 case V4L2_TUNER_MODE_LANG2:
272 case V4L2_TUNER_MODE_LANG1_LANG2:
273 msp_write_dsp(client, 0x000e, 0x3000);
274 break;
275 }
276 break;
277 case MSP_MODE_FM_SAT:
278 v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr);
279 switch (audmode) {
280 case V4L2_TUNER_MODE_MONO:
281 msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
282 break;
283 case V4L2_TUNER_MODE_STEREO:
284 case V4L2_TUNER_MODE_LANG1_LANG2:
285 msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
286 break;
287 case V4L2_TUNER_MODE_LANG1:
288 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
289 break;
290 case V4L2_TUNER_MODE_LANG2:
291 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
292 break;
293 }
294 break;
295 case MSP_MODE_FM_NICAM1:
296 case MSP_MODE_FM_NICAM2:
297 case MSP_MODE_AM_NICAM:
298 v4l_dbg(1, msp_debug, client, "NICAM set_audmode: %s\n",modestr);
299 if (state->nicam_on)
300 src = 0x0100; /* NICAM */
301 break;
302 case MSP_MODE_BTSC:
303 v4l_dbg(1, msp_debug, client, "BTSC set_audmode: %s\n",modestr);
304 break;
305 case MSP_MODE_EXTERN:
306 v4l_dbg(1, msp_debug, client, "extern set_audmode: %s\n",modestr);
307 src = 0x0200; /* SCART */
308 break;
309 case MSP_MODE_FM_RADIO:
310 v4l_dbg(1, msp_debug, client, "FM-Radio set_audmode: %s\n",modestr);
311 break;
312 default:
313 v4l_dbg(1, msp_debug, client, "mono set_audmode\n");
314 return;
315 }
316
317 /* switch audio */
318 v4l_dbg(1, msp_debug, client, "set audmode %d\n", audmode);
319 switch (audmode) {
320 case V4L2_TUNER_MODE_STEREO:
321 case V4L2_TUNER_MODE_LANG1_LANG2:
322 src |= 0x0020;
323 break;
324 case V4L2_TUNER_MODE_MONO:
325 if (state->mode == MSP_MODE_AM_NICAM) {
326 v4l_dbg(1, msp_debug, client, "switching to AM mono\n");
327 /* AM mono decoding is handled by tuner, not MSP chip */
328 /* SCART switching control register */
329 msp_set_scart(client, SCART_MONO, 0);
330 src = 0x0200;
331 break;
332 }
333 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
334 src = 0x0030;
335 break;
336 case V4L2_TUNER_MODE_LANG1:
337 break;
338 case V4L2_TUNER_MODE_LANG2:
339 src |= 0x0010;
340 break;
341 }
342 v4l_dbg(1, msp_debug, client, "set_audmode final source/matrix = 0x%x\n", src);
343
344 msp_set_source(client, src);
345 }
346
347 static void msp3400c_print_mode(struct i2c_client *client)
348 {
349 struct msp_state *state = i2c_get_clientdata(client);
350
351 if (state->main == state->second) {
352 v4l_dbg(1, msp_debug, client, "mono sound carrier: %d.%03d MHz\n",
353 state->main / 910000, (state->main / 910) % 1000);
354 } else {
355 v4l_dbg(1, msp_debug, client, "main sound carrier: %d.%03d MHz\n",
356 state->main / 910000, (state->main / 910) % 1000);
357 }
358 if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2)
359 v4l_dbg(1, msp_debug, client, "NICAM/FM carrier : %d.%03d MHz\n",
360 state->second / 910000, (state->second/910) % 1000);
361 if (state->mode == MSP_MODE_AM_NICAM)
362 v4l_dbg(1, msp_debug, client, "NICAM/AM carrier : %d.%03d MHz\n",
363 state->second / 910000, (state->second / 910) % 1000);
364 if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) {
365 v4l_dbg(1, msp_debug, client, "FM-stereo carrier : %d.%03d MHz\n",
366 state->second / 910000, (state->second / 910) % 1000);
367 }
368 }
369
370 /* ----------------------------------------------------------------------- */
371
372 static int msp3400c_detect_stereo(struct i2c_client *client)
373 {
374 struct msp_state *state = i2c_get_clientdata(client);
375 int val;
376 int rxsubchans = state->rxsubchans;
377 int newnicam = state->nicam_on;
378 int update = 0;
379
380 switch (state->mode) {
381 case MSP_MODE_FM_TERRA:
382 val = msp_read_dsp(client, 0x18);
383 if (val > 32767)
384 val -= 65536;
385 v4l_dbg(2, msp_debug, client, "stereo detect register: %d\n", val);
386 if (val > 8192) {
387 rxsubchans = V4L2_TUNER_SUB_STEREO;
388 } else if (val < -4096) {
389 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
390 } else {
391 rxsubchans = V4L2_TUNER_SUB_MONO;
392 }
393 newnicam = 0;
394 break;
395 case MSP_MODE_FM_NICAM1:
396 case MSP_MODE_FM_NICAM2:
397 case MSP_MODE_AM_NICAM:
398 val = msp_read_dem(client, 0x23);
399 v4l_dbg(2, msp_debug, client, "nicam sync=%d, mode=%d\n",
400 val & 1, (val & 0x1e) >> 1);
401
402 if (val & 1) {
403 /* nicam synced */
404 switch ((val & 0x1e) >> 1) {
405 case 0:
406 case 8:
407 rxsubchans = V4L2_TUNER_SUB_STEREO;
408 break;
409 case 1:
410 case 9:
411 rxsubchans = V4L2_TUNER_SUB_MONO;
412 break;
413 case 2:
414 case 10:
415 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
416 break;
417 default:
418 rxsubchans = V4L2_TUNER_SUB_MONO;
419 break;
420 }
421 newnicam = 1;
422 } else {
423 newnicam = 0;
424 rxsubchans = V4L2_TUNER_SUB_MONO;
425 }
426 break;
427 }
428 if (rxsubchans != state->rxsubchans) {
429 update = 1;
430 v4l_dbg(1, msp_debug, client, "watch: rxsubchans %02x => %02x\n",
431 state->rxsubchans, rxsubchans);
432 state->rxsubchans = rxsubchans;
433 }
434 if (newnicam != state->nicam_on) {
435 update = 1;
436 v4l_dbg(1, msp_debug, client, "watch: nicam %d => %d\n",
437 state->nicam_on, newnicam);
438 state->nicam_on = newnicam;
439 }
440 return update;
441 }
442
443 /*
444 * A kernel thread for msp3400 control -- we don't want to block the
445 * in the ioctl while doing the sound carrier & stereo detect
446 */
447 /* stereo/multilang monitoring */
448 static void watch_stereo(struct i2c_client *client)
449 {
450 struct msp_state *state = i2c_get_clientdata(client);
451
452 if (msp_detect_stereo(client)) {
453 msp_set_audmode(client);
454 }
455
456 if (msp_once)
457 state->watch_stereo = 0;
458 }
459
460 int msp3400c_thread(void *data)
461 {
462 struct i2c_client *client = data;
463 struct msp_state *state = i2c_get_clientdata(client);
464 struct msp3400c_carrier_detect *cd;
465 int count, max1, max2, val1, val2, val, this;
466
467
468 v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n");
469 for (;;) {
470 v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n");
471 msp_sleep(state, -1);
472 v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n");
473
474 restart:
475 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
476 state->restart = 0;
477 if (kthread_should_stop())
478 break;
479
480 if (state->radio || MSP_MODE_EXTERN == state->mode) {
481 /* no carrier scan, just unmute */
482 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n");
483 state->scan_in_progress = 0;
484 msp_set_audio(client);
485 continue;
486 }
487
488 /* mute audio */
489 state->scan_in_progress = 1;
490 msp_set_audio(client);
491
492 msp3400c_set_mode(client, MSP_MODE_AM_DETECT);
493 val1 = val2 = 0;
494 max1 = max2 = -1;
495 state->watch_stereo = 0;
496 state->nicam_on = 0;
497
498 /* wait for tuner to settle down after a channel change */
499 if (msp_sleep(state, 200))
500 goto restart;
501
502 /* carrier detect pass #1 -- main carrier */
503 cd = msp3400c_carrier_detect_main;
504 count = ARRAY_SIZE(msp3400c_carrier_detect_main);
505
506 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
507 /* autodetect doesn't work well with AM ... */
508 max1 = 3;
509 count = 0;
510 v4l_dbg(1, msp_debug, client, "AM sound override\n");
511 }
512
513 for (this = 0; this < count; this++) {
514 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
515 if (msp_sleep(state,100))
516 goto restart;
517 val = msp_read_dsp(client, 0x1b);
518 if (val > 32767)
519 val -= 65536;
520 if (val1 < val)
521 val1 = val, max1 = this;
522 v4l_dbg(1, msp_debug, client, "carrier1 val: %5d / %s\n", val,cd[this].name);
523 }
524
525 /* carrier detect pass #2 -- second (stereo) carrier */
526 switch (max1) {
527 case 1: /* 5.5 */
528 cd = msp3400c_carrier_detect_55;
529 count = ARRAY_SIZE(msp3400c_carrier_detect_55);
530 break;
531 case 3: /* 6.5 */
532 cd = msp3400c_carrier_detect_65;
533 count = ARRAY_SIZE(msp3400c_carrier_detect_65);
534 break;
535 case 0: /* 4.5 */
536 case 2: /* 6.0 */
537 default:
538 cd = NULL;
539 count = 0;
540 break;
541 }
542
543 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
544 /* autodetect doesn't work well with AM ... */
545 cd = NULL;
546 count = 0;
547 max2 = 0;
548 }
549 for (this = 0; this < count; this++) {
550 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
551 if (msp_sleep(state,100))
552 goto restart;
553 val = msp_read_dsp(client, 0x1b);
554 if (val > 32767)
555 val -= 65536;
556 if (val2 < val)
557 val2 = val, max2 = this;
558 v4l_dbg(1, msp_debug, client, "carrier2 val: %5d / %s\n", val,cd[this].name);
559 }
560
561 /* program the msp3400 according to the results */
562 state->main = msp3400c_carrier_detect_main[max1].cdo;
563 switch (max1) {
564 case 1: /* 5.5 */
565 if (max2 == 0) {
566 /* B/G FM-stereo */
567 state->second = msp3400c_carrier_detect_55[max2].cdo;
568 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
569 state->watch_stereo = 1;
570 } else if (max2 == 1 && state->has_nicam) {
571 /* B/G NICAM */
572 state->second = msp3400c_carrier_detect_55[max2].cdo;
573 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
574 state->nicam_on = 1;
575 state->watch_stereo = 1;
576 } else {
577 goto no_second;
578 }
579 break;
580 case 2: /* 6.0 */
581 /* PAL I NICAM */
582 state->second = MSP_CARRIER(6.552);
583 msp3400c_set_mode(client, MSP_MODE_FM_NICAM2);
584 state->nicam_on = 1;
585 state->watch_stereo = 1;
586 break;
587 case 3: /* 6.5 */
588 if (max2 == 1 || max2 == 2) {
589 /* D/K FM-stereo */
590 state->second = msp3400c_carrier_detect_65[max2].cdo;
591 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
592 state->watch_stereo = 1;
593 } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) {
594 /* L NICAM or AM-mono */
595 state->second = msp3400c_carrier_detect_65[max2].cdo;
596 msp3400c_set_mode(client, MSP_MODE_AM_NICAM);
597 state->watch_stereo = 1;
598 } else if (max2 == 0 && state->has_nicam) {
599 /* D/K NICAM */
600 state->second = msp3400c_carrier_detect_65[max2].cdo;
601 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
602 state->nicam_on = 1;
603 state->watch_stereo = 1;
604 } else {
605 goto no_second;
606 }
607 break;
608 case 0: /* 4.5 */
609 default:
610 no_second:
611 state->second = msp3400c_carrier_detect_main[max1].cdo;
612 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
613 break;
614 }
615 msp3400c_set_carrier(client, state->second, state->main);
616
617 /* unmute */
618 state->scan_in_progress = 0;
619 msp3400c_set_audmode(client);
620 msp_set_audio(client);
621
622 if (msp_debug)
623 msp3400c_print_mode(client);
624
625 /* monitor tv audio mode, the first time don't wait
626 so long to get a quick stereo/bilingual result */
627 count = 3;
628 while (state->watch_stereo) {
629 if (msp_sleep(state, count ? 1000 : 5000))
630 goto restart;
631 if (count) count--;
632 watch_stereo(client);
633 }
634 }
635 v4l_dbg(1, msp_debug, client, "thread: exit\n");
636 return 0;
637 }
638
639
640 int msp3410d_thread(void *data)
641 {
642 struct i2c_client *client = data;
643 struct msp_state *state = i2c_get_clientdata(client);
644 int val, i, std, count;
645
646 v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n");
647
648 for (;;) {
649 v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n");
650 msp_sleep(state,-1);
651 v4l_dbg(2, msp_debug, client, "msp3410 thread: wakeup\n");
652
653 restart:
654 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
655 state->restart = 0;
656 if (kthread_should_stop())
657 break;
658
659 if (state->mode == MSP_MODE_EXTERN) {
660 /* no carrier scan needed, just unmute */
661 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n");
662 state->scan_in_progress = 0;
663 msp_set_audio(client);
664 continue;
665 }
666
667 /* mute audio */
668 state->scan_in_progress = 1;
669 msp_set_audio(client);
670
671 /* start autodetect. Note: autodetect is not supported for
672 NTSC-M and radio, hence we force the standard in those cases. */
673 if (state->radio)
674 std = 0x40;
675 else
676 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1;
677 state->watch_stereo = 0;
678 state->nicam_on = 0;
679
680 /* wait for tuner to settle down after a channel change */
681 if (msp_sleep(state, 200))
682 goto restart;
683
684 if (msp_debug)
685 v4l_dbg(2, msp_debug, client, "setting standard: %s (0x%04x)\n",
686 msp_standard_std_name(std), std);
687
688 if (std != 1) {
689 /* programmed some specific mode */
690 val = std;
691 } else {
692 /* triggered autodetect */
693 msp_write_dem(client, 0x20, std);
694 for (;;) {
695 if (msp_sleep(state, 100))
696 goto restart;
697
698 /* check results */
699 val = msp_read_dem(client, 0x7e);
700 if (val < 0x07ff)
701 break;
702 v4l_dbg(2, msp_debug, client, "detection still in progress\n");
703 }
704 }
705 for (i = 0; msp_stdlist[i].name != NULL; i++)
706 if (msp_stdlist[i].retval == val)
707 break;
708 v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n",
709 msp_standard_std_name(val), val);
710 state->main = msp_stdlist[i].main;
711 state->second = msp_stdlist[i].second;
712 state->std = val;
713 state->rxsubchans = V4L2_TUNER_SUB_MONO;
714
715 if (msp_amsound && !state->radio && (state->v4l2_std & V4L2_STD_SECAM) &&
716 (val != 0x0009)) {
717 /* autodetection has failed, let backup */
718 v4l_dbg(1, msp_debug, client, "autodetection failed,"
719 " switching to backup standard: %s (0x%04x)\n",
720 msp_stdlist[8].name ? msp_stdlist[8].name : "unknown",val);
721 state->std = val = 0x0009;
722 msp_write_dem(client, 0x20, val);
723 }
724
725 /* set stereo */
726 switch (val) {
727 case 0x0008: /* B/G NICAM */
728 case 0x000a: /* I NICAM */
729 case 0x000b: /* D/K NICAM */
730 if (val == 0x000a)
731 state->mode = MSP_MODE_FM_NICAM2;
732 else
733 state->mode = MSP_MODE_FM_NICAM1;
734 /* just turn on stereo */
735 state->nicam_on = 1;
736 state->watch_stereo = 1;
737 break;
738 case 0x0009:
739 state->mode = MSP_MODE_AM_NICAM;
740 state->nicam_on = 1;
741 state->watch_stereo = 1;
742 break;
743 case 0x0020: /* BTSC */
744 /* The pre-'G' models only have BTSC-mono */
745 state->mode = MSP_MODE_BTSC;
746 break;
747 case 0x0040: /* FM radio */
748 state->mode = MSP_MODE_FM_RADIO;
749 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
750 /* not needed in theory if we have radio, but
751 short programming enables carrier mute */
752 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
753 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
754 MSP_CARRIER(10.7));
755 break;
756 case 0x0002:
757 case 0x0003:
758 case 0x0004:
759 case 0x0005:
760 state->mode = MSP_MODE_FM_TERRA;
761 state->watch_stereo = 1;
762 break;
763 }
764
765 /* set various prescales */
766 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
767 msp_write_dsp(client, 0x0e, 0x3000); /* FM */
768 if (state->has_nicam)
769 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
770
771 if (state->has_i2s_conf)
772 msp_write_dem(client, 0x40, state->i2s_mode);
773
774 /* unmute */
775 msp3400c_set_audmode(client);
776 state->scan_in_progress = 0;
777 msp_set_audio(client);
778
779 /* monitor tv audio mode, the first time don't wait
780 so long to get a quick stereo/bilingual result */
781 count = 3;
782 while (state->watch_stereo) {
783 if (msp_sleep(state, count ? 1000 : 5000))
784 goto restart;
785 if (count) count--;
786 watch_stereo(client);
787 }
788 }
789 v4l_dbg(1, msp_debug, client, "thread: exit\n");
790 return 0;
791 }
792
793 /* ----------------------------------------------------------------------- */
794
795 /* msp34xxG + (autoselect no-thread)
796 * this one uses both automatic standard detection and automatic sound
797 * select which are available in the newer G versions
798 * struct msp: only norm, acb and source are really used in this mode
799 */
800
801 static int msp34xxg_modus(struct i2c_client *client)
802 {
803 struct msp_state *state = i2c_get_clientdata(client);
804
805 if (state->radio) {
806 v4l_dbg(1, msp_debug, client, "selected radio modus\n");
807 return 0x0001;
808 }
809
810 if (state->v4l2_std & V4L2_STD_PAL) {
811 v4l_dbg(1, msp_debug, client, "selected PAL modus\n");
812 return 0x7001;
813 }
814 if (state->v4l2_std == V4L2_STD_NTSC_M_JP) {
815 v4l_dbg(1, msp_debug, client, "selected M (EIA-J) modus\n");
816 return 0x4001;
817 }
818 if (state->v4l2_std == V4L2_STD_NTSC_M_KR) {
819 v4l_dbg(1, msp_debug, client, "selected M (A2) modus\n");
820 return 0x0001;
821 }
822 if (state->v4l2_std & V4L2_STD_MN) {
823 v4l_dbg(1, msp_debug, client, "selected M (BTSC) modus\n");
824 return 0x2001;
825 }
826 if (state->v4l2_std & V4L2_STD_SECAM) {
827 v4l_dbg(1, msp_debug, client, "selected SECAM modus\n");
828 return 0x6001;
829 }
830 return 0x0001;
831 }
832
833 static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in)
834 {
835 struct msp_state *state = i2c_get_clientdata(client);
836 int source, matrix;
837
838 switch (state->audmode) {
839 case V4L2_TUNER_MODE_MONO:
840 source = 0; /* mono only */
841 matrix = 0x30;
842 break;
843 case V4L2_TUNER_MODE_LANG2:
844 source = 4; /* stereo or B */
845 matrix = 0x10;
846 break;
847 case V4L2_TUNER_MODE_LANG1_LANG2:
848 source = 1; /* stereo or A|B */
849 matrix = 0x20;
850 break;
851 case V4L2_TUNER_MODE_STEREO:
852 case V4L2_TUNER_MODE_LANG1:
853 default:
854 source = 3; /* stereo or A */
855 matrix = 0x00;
856 break;
857 }
858
859 if (in == MSP_DSP_IN_TUNER)
860 source = (source << 8) | 0x20;
861 /* the msp34x2g puts the MAIN_AVC, MAIN and AUX sources in 12, 13, 14
862 instead of 11, 12, 13. So we add one for that msp version. */
863 else if (in >= MSP_DSP_IN_MAIN_AVC && state->has_dolby_pro_logic)
864 source = ((in + 1) << 8) | matrix;
865 else
866 source = (in << 8) | matrix;
867
868 v4l_dbg(1, msp_debug, client, "set source to %d (0x%x) for output %02x\n",
869 in, source, reg);
870 msp_write_dsp(client, reg, source);
871 }
872
873 static void msp34xxg_set_sources(struct i2c_client *client)
874 {
875 struct msp_state *state = i2c_get_clientdata(client);
876 u32 in = state->routing.input;
877
878 msp34xxg_set_source(client, 0x0008, (in >> 4) & 0xf);
879 /* quasi-peak detector is set to same input as the loudspeaker (MAIN) */
880 msp34xxg_set_source(client, 0x000c, (in >> 4) & 0xf);
881 msp34xxg_set_source(client, 0x0009, (in >> 8) & 0xf);
882 msp34xxg_set_source(client, 0x000a, (in >> 12) & 0xf);
883 if (state->has_scart2_out)
884 msp34xxg_set_source(client, 0x0041, (in >> 16) & 0xf);
885 msp34xxg_set_source(client, 0x000b, (in >> 20) & 0xf);
886 }
887
888 /* (re-)initialize the msp34xxg */
889 static void msp34xxg_reset(struct i2c_client *client)
890 {
891 struct msp_state *state = i2c_get_clientdata(client);
892 int tuner = (state->routing.input >> 3) & 1;
893 int modus;
894
895 /* initialize std to 1 (autodetect) to signal that no standard is
896 selected yet. */
897 state->std = 1;
898
899 msp_reset(client);
900
901 if (state->has_i2s_conf)
902 msp_write_dem(client, 0x40, state->i2s_mode);
903
904 /* step-by-step initialisation, as described in the manual */
905 modus = msp34xxg_modus(client);
906 modus |= tuner ? 0x100 : 0;
907 msp_write_dem(client, 0x30, modus);
908
909 /* write the dsps that may have an influence on
910 standard/audio autodetection right now */
911 msp34xxg_set_sources(client);
912
913 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
914 msp_write_dsp(client, 0x0e, 0x3000); /* FM */
915 if (state->has_nicam)
916 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
917
918 /* set identification threshold. Personally, I
919 * I set it to a higher value than the default
920 * of 0x190 to ignore noisy stereo signals.
921 * this needs tuning. (recommended range 0x00a0-0x03c0)
922 * 0x7f0 = forced mono mode
923 *
924 * a2 threshold for stereo/bilingual.
925 * Note: this register is part of the Manual/Compatibility mode.
926 * It is supported by all 'G'-family chips.
927 */
928 msp_write_dem(client, 0x22, msp_stereo_thresh);
929 }
930
931 int msp34xxg_thread(void *data)
932 {
933 struct i2c_client *client = data;
934 struct msp_state *state = i2c_get_clientdata(client);
935 int val, i;
936
937 v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n");
938
939 for (;;) {
940 v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n");
941 msp_sleep(state, -1);
942 v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n");
943
944 restart:
945 v4l_dbg(1, msp_debug, client, "thread: restart scan\n");
946 state->restart = 0;
947 if (kthread_should_stop())
948 break;
949
950 /* setup the chip*/
951 msp34xxg_reset(client);
952 state->std = state->radio ? 0x40 : msp_standard;
953 if (state->std != 1)
954 goto unmute;
955 /* start autodetect */
956 msp_write_dem(client, 0x20, state->std);
957
958 /* watch autodetect */
959 v4l_dbg(1, msp_debug, client, "started autodetect, waiting for result\n");
960 for (i = 0; i < 10; i++) {
961 if (msp_sleep(state, 100))
962 goto restart;
963
964 /* check results */
965 val = msp_read_dem(client, 0x7e);
966 if (val < 0x07ff) {
967 state->std = val;
968 break;
969 }
970 v4l_dbg(2, msp_debug, client, "detection still in progress\n");
971 }
972 if (state->std == 1) {
973 v4l_dbg(1, msp_debug, client, "detection still in progress after 10 tries. giving up.\n");
974 continue;
975 }
976
977 unmute:
978 v4l_dbg(1, msp_debug, client, "detected standard: %s (0x%04x)\n",
979 msp_standard_std_name(state->std), state->std);
980
981 /* unmute: dispatch sound to scart output, set scart volume */
982 msp_set_audio(client);
983
984 /* restore ACB */
985 if (msp_write_dsp(client, 0x13, state->acb))
986 return -1;
987
988 /* the periodic stereo/SAP check is only relevant for
989 the 0x20 standard (BTSC) */
990 if (state->std != 0x20)
991 continue;
992
993 state->watch_stereo = 1;
994
995 /* monitor tv audio mode, the first time don't wait
996 in order to get a quick stereo/SAP update */
997 watch_stereo(client);
998 while (state->watch_stereo) {
999 watch_stereo(client);
1000 if (msp_sleep(state, 5000))
1001 goto restart;
1002 }
1003 }
1004 v4l_dbg(1, msp_debug, client, "thread: exit\n");
1005 return 0;
1006 }
1007
1008 static int msp34xxg_detect_stereo(struct i2c_client *client)
1009 {
1010 struct msp_state *state = i2c_get_clientdata(client);
1011 int status = msp_read_dem(client, 0x0200);
1012 int is_bilingual = status & 0x100;
1013 int is_stereo = status & 0x40;
1014 int oldrx = state->rxsubchans;
1015
1016 state->rxsubchans = 0;
1017 if (is_stereo)
1018 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
1019 else
1020 state->rxsubchans = V4L2_TUNER_SUB_MONO;
1021 if (is_bilingual) {
1022 if (state->std == 0x20)
1023 state->rxsubchans |= V4L2_TUNER_SUB_SAP;
1024 else
1025 state->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1026 }
1027 v4l_dbg(1, msp_debug, client, "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
1028 status, is_stereo, is_bilingual, state->rxsubchans);
1029 return (oldrx != state->rxsubchans);
1030 }
1031
1032 static void msp34xxg_set_audmode(struct i2c_client *client)
1033 {
1034 struct msp_state *state = i2c_get_clientdata(client);
1035
1036 if (state->std == 0x20) {
1037 if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) &&
1038 (state->audmode == V4L2_TUNER_MODE_LANG1_LANG2 ||
1039 state->audmode == V4L2_TUNER_MODE_LANG2)) {
1040 msp_write_dem(client, 0x20, 0x21);
1041 } else {
1042 msp_write_dem(client, 0x20, 0x20);
1043 }
1044 }
1045
1046 msp34xxg_set_sources(client);
1047 }
1048
1049 void msp_set_audmode(struct i2c_client *client)
1050 {
1051 struct msp_state *state = i2c_get_clientdata(client);
1052
1053 switch (state->opmode) {
1054 case OPMODE_MANUAL:
1055 case OPMODE_AUTODETECT:
1056 msp3400c_set_audmode(client);
1057 break;
1058 case OPMODE_AUTOSELECT:
1059 msp34xxg_set_audmode(client);
1060 break;
1061 }
1062 }
1063
1064 int msp_detect_stereo(struct i2c_client *client)
1065 {
1066 struct msp_state *state = i2c_get_clientdata(client);
1067
1068 switch (state->opmode) {
1069 case OPMODE_MANUAL:
1070 case OPMODE_AUTODETECT:
1071 return msp3400c_detect_stereo(client);
1072 case OPMODE_AUTOSELECT:
1073 return msp34xxg_detect_stereo(client);
1074 }
1075 return 0;
1076 }
1077
Verdex Pro support