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-rw-r--r--drivers/media/video/msp3400-kthreads.c1015
1 files changed, 1015 insertions, 0 deletions
diff --git a/drivers/media/video/msp3400-kthreads.c b/drivers/media/video/msp3400-kthreads.c
new file mode 100644
index 000000000000..934f0d3b9138
--- /dev/null
+++ b/drivers/media/video/msp3400-kthreads.c
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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/audiochip.h>
30#include <linux/kthread.h>
31#include <linux/suspend.h>
32#include "msp3400.h"
33
34/* this one uses the automatic sound standard detection of newer msp34xx
35 chip versions */
36static struct {
37 int retval;
38 int main, second;
39 char *name;
40} msp_modelist[] = {
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 { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" },
49 { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" },
50 { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" },
51 { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" },
52 { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" },
53 { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" },
54 { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" },
55 { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" },
56 { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" },
57 { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" },
58 { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" },
59 { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" },
60 { -1, 0, 0, NULL }, /* EOF */
61};
62
63static struct msp3400c_init_data_dem {
64 int fir1[6];
65 int fir2[6];
66 int cdo1;
67 int cdo2;
68 int ad_cv;
69 int mode_reg;
70 int dsp_src;
71 int dsp_matrix;
72} msp3400c_init_data[] = {
73 { /* AM (for carrier detect / msp3400) */
74 {75, 19, 36, 35, 39, 40},
75 {75, 19, 36, 35, 39, 40},
76 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
77 0x00d0, 0x0500, 0x0020, 0x3000
78 },{ /* AM (for carrier detect / msp3410) */
79 {-1, -1, -8, 2, 59, 126},
80 {-1, -1, -8, 2, 59, 126},
81 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
82 0x00d0, 0x0100, 0x0020, 0x3000
83 },{ /* FM Radio */
84 {-8, -8, 4, 6, 78, 107},
85 {-8, -8, 4, 6, 78, 107},
86 MSP_CARRIER(10.7), MSP_CARRIER(10.7),
87 0x00d0, 0x0480, 0x0020, 0x3000
88 },{ /* Terrestial FM-mono + FM-stereo */
89 {3, 18, 27, 48, 66, 72},
90 {3, 18, 27, 48, 66, 72},
91 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
92 0x00d0, 0x0480, 0x0030, 0x3000
93 },{ /* Sat FM-mono */
94 { 1, 9, 14, 24, 33, 37},
95 { 3, 18, 27, 48, 66, 72},
96 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
97 0x00c6, 0x0480, 0x0000, 0x3000
98 },{ /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */
99 {-2, -8, -10, 10, 50, 86},
100 {3, 18, 27, 48, 66, 72},
101 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
102 0x00d0, 0x0040, 0x0120, 0x3000
103 },{ /* NICAM/FM -- I (6.0/6.552) */
104 {2, 4, -6, -4, 40, 94},
105 {3, 18, 27, 48, 66, 72},
106 MSP_CARRIER(6.0), MSP_CARRIER(6.0),
107 0x00d0, 0x0040, 0x0120, 0x3000
108 },{ /* NICAM/AM -- L (6.5/5.85) */
109 {-2, -8, -10, 10, 50, 86},
110 {-4, -12, -9, 23, 79, 126},
111 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
112 0x00c6, 0x0140, 0x0120, 0x7c03
113 },
114};
115
116struct msp3400c_carrier_detect {
117 int cdo;
118 char *name;
119};
120
121static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = {
122 /* main carrier */
123 { MSP_CARRIER(4.5), "4.5 NTSC" },
124 { MSP_CARRIER(5.5), "5.5 PAL B/G" },
125 { MSP_CARRIER(6.0), "6.0 PAL I" },
126 { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" }
127};
128
129static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = {
130 /* PAL B/G */
131 { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" },
132 { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" }
133};
134
135static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = {
136 /* PAL SAT / SECAM */
137 { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" },
138 { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" },
139 { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" },
140 { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" },
141 { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" },
142 { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" },
143};
144
145/* ------------------------------------------------------------------------ */
146
147const char *msp_standard_mode_name(int mode)
148{
149 int i;
150
151 for (i = 0; msp_modelist[i].name != NULL; i++)
152 if (msp_modelist[i].retval == mode)
153 return msp_modelist[i].name;
154 return "unknown";
155}
156
157void msp3400c_setcarrier(struct i2c_client *client, int cdo1, int cdo2)
158{
159 msp_write_dem(client, 0x0093, cdo1 & 0xfff);
160 msp_write_dem(client, 0x009b, cdo1 >> 12);
161 msp_write_dem(client, 0x00a3, cdo2 & 0xfff);
162 msp_write_dem(client, 0x00ab, cdo2 >> 12);
163 msp_write_dem(client, 0x0056, 0); /*LOAD_REG_1/2*/
164}
165
166void msp3400c_setmode(struct i2c_client *client, int type)
167{
168 struct msp_state *state = i2c_get_clientdata(client);
169 int i;
170
171 v4l_dbg(1, client, "setmode: %d\n", type);
172 state->mode = type;
173 state->audmode = V4L2_TUNER_MODE_MONO;
174 state->rxsubchans = V4L2_TUNER_SUB_MONO;
175
176 msp_write_dem(client, 0x00bb, msp3400c_init_data[type].ad_cv);
177
178 for (i = 5; i >= 0; i--) /* fir 1 */
179 msp_write_dem(client, 0x0001, msp3400c_init_data[type].fir1[i]);
180
181 msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */
182 msp_write_dem(client, 0x0005, 0x0040);
183 msp_write_dem(client, 0x0005, 0x0000);
184 for (i = 5; i >= 0; i--)
185 msp_write_dem(client, 0x0005, msp3400c_init_data[type].fir2[i]);
186
187 msp_write_dem(client, 0x0083, msp3400c_init_data[type].mode_reg);
188
189 msp3400c_setcarrier(client, msp3400c_init_data[type].cdo1,
190 msp3400c_init_data[type].cdo2);
191
192 msp_write_dem(client, 0x0056, 0); /*LOAD_REG_1/2*/
193
194 if (dolby) {
195 msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */
196 msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */
197 msp_write_dsp(client, 0x000b, msp3400c_init_data[type].dsp_src);
198 } else {
199 msp_write_dsp(client, 0x0008, msp3400c_init_data[type].dsp_src);
200 msp_write_dsp(client, 0x0009, msp3400c_init_data[type].dsp_src);
201 msp_write_dsp(client, 0x000b, msp3400c_init_data[type].dsp_src);
202 }
203 msp_write_dsp(client, 0x000a, msp3400c_init_data[type].dsp_src);
204 msp_write_dsp(client, 0x000e, msp3400c_init_data[type].dsp_matrix);
205
206 if (HAVE_NICAM(state)) {
207 /* nicam prescale */
208 msp_write_dsp(client, 0x0010, 0x5a00); /* was: 0x3000 */
209 }
210}
211
212/* given a bitmask of VIDEO_SOUND_XXX returns the "best" in the bitmask */
213static int msp3400c_best_video_sound(int rxsubchans)
214{
215 if (rxsubchans & V4L2_TUNER_SUB_STEREO)
216 return V4L2_TUNER_MODE_STEREO;
217 if (rxsubchans & V4L2_TUNER_SUB_LANG1)
218 return V4L2_TUNER_MODE_LANG1;
219 if (rxsubchans & V4L2_TUNER_SUB_LANG2)
220 return V4L2_TUNER_MODE_LANG2;
221 return V4L2_TUNER_MODE_MONO;
222}
223
224/* turn on/off nicam + stereo */
225void msp3400c_setstereo(struct i2c_client *client, int mode)
226{
227 static char *strmode[] = { "0", "mono", "stereo", "3",
228 "lang1", "5", "6", "7", "lang2"
229 };
230 struct msp_state *state = i2c_get_clientdata(client);
231 int nicam = 0; /* channel source: FM/AM or nicam */
232 int src = 0;
233
234 if (state->opmode == OPMODE_AUTOSELECT) {
235 /* this method would break everything, let's make sure
236 * it's never called
237 */
238 v4l_dbg(1, client, "setstereo called with mode=%d instead of set_source (ignored)\n",
239 mode);
240 return;
241 }
242
243 /* switch demodulator */
244 switch (state->mode) {
245 case MSP_MODE_FM_TERRA:
246 v4l_dbg(1, client, "FM setstereo: %s\n", strmode[mode]);
247 msp3400c_setcarrier(client,state->second,state->main);
248 switch (mode) {
249 case V4L2_TUNER_MODE_STEREO:
250 msp_write_dsp(client, 0x000e, 0x3001);
251 break;
252 case V4L2_TUNER_MODE_MONO:
253 case V4L2_TUNER_MODE_LANG1:
254 case V4L2_TUNER_MODE_LANG2:
255 msp_write_dsp(client, 0x000e, 0x3000);
256 break;
257 }
258 break;
259 case MSP_MODE_FM_SAT:
260 v4l_dbg(1, client, "SAT setstereo: %s\n", strmode[mode]);
261 switch (mode) {
262 case V4L2_TUNER_MODE_MONO:
263 msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
264 break;
265 case V4L2_TUNER_MODE_STEREO:
266 msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
267 break;
268 case V4L2_TUNER_MODE_LANG1:
269 msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
270 break;
271 case V4L2_TUNER_MODE_LANG2:
272 msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
273 break;
274 }
275 break;
276 case MSP_MODE_FM_NICAM1:
277 case MSP_MODE_FM_NICAM2:
278 case MSP_MODE_AM_NICAM:
279 v4l_dbg(1, client, "NICAM setstereo: %s\n",strmode[mode]);
280 msp3400c_setcarrier(client,state->second,state->main);
281 if (state->nicam_on)
282 nicam=0x0100;
283 break;
284 case MSP_MODE_BTSC:
285 v4l_dbg(1, client, "BTSC setstereo: %s\n",strmode[mode]);
286 nicam=0x0300;
287 break;
288 case MSP_MODE_EXTERN:
289 v4l_dbg(1, client, "extern setstereo: %s\n",strmode[mode]);
290 nicam = 0x0200;
291 break;
292 case MSP_MODE_FM_RADIO:
293 v4l_dbg(1, client, "FM-Radio setstereo: %s\n",strmode[mode]);
294 break;
295 default:
296 v4l_dbg(1, client, "mono setstereo\n");
297 return;
298 }
299
300 /* switch audio */
301 switch (msp3400c_best_video_sound(mode)) {
302 case V4L2_TUNER_MODE_STEREO:
303 src = 0x0020 | nicam;
304 break;
305 case V4L2_TUNER_MODE_MONO:
306 if (state->mode == MSP_MODE_AM_NICAM) {
307 v4l_dbg(1, client, "switching to AM mono\n");
308 /* AM mono decoding is handled by tuner, not MSP chip */
309 /* SCART switching control register */
310 msp_set_scart(client, SCART_MONO, 0);
311 src = 0x0200;
312 break;
313 }
314 case V4L2_TUNER_MODE_LANG1:
315 src = 0x0000 | nicam;
316 break;
317 case V4L2_TUNER_MODE_LANG2:
318 src = 0x0010 | nicam;
319 break;
320 }
321 v4l_dbg(1, client, "setstereo final source/matrix = 0x%x\n", src);
322
323 if (dolby) {
324 msp_write_dsp(client, 0x0008, 0x0520);
325 msp_write_dsp(client, 0x0009, 0x0620);
326 msp_write_dsp(client, 0x000a, src);
327 msp_write_dsp(client, 0x000b, src);
328 } else {
329 msp_write_dsp(client, 0x0008, src);
330 msp_write_dsp(client, 0x0009, src);
331 msp_write_dsp(client, 0x000a, src);
332 msp_write_dsp(client, 0x000b, src);
333 }
334}
335
336static void msp3400c_print_mode(struct i2c_client *client)
337{
338 struct msp_state *state = i2c_get_clientdata(client);
339
340 if (state->main == state->second) {
341 v4l_dbg(1, client, "mono sound carrier: %d.%03d MHz\n",
342 state->main / 910000, (state->main / 910) % 1000);
343 } else {
344 v4l_dbg(1, client, "main sound carrier: %d.%03d MHz\n",
345 state->main / 910000, (state->main / 910) % 1000);
346 }
347 if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2)
348 v4l_dbg(1, client, "NICAM/FM carrier : %d.%03d MHz\n",
349 state->second / 910000, (state->second/910) % 1000);
350 if (state->mode == MSP_MODE_AM_NICAM)
351 v4l_dbg(1, client, "NICAM/AM carrier : %d.%03d MHz\n",
352 state->second / 910000, (state->second / 910) % 1000);
353 if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) {
354 v4l_dbg(1, client, "FM-stereo carrier : %d.%03d MHz\n",
355 state->second / 910000, (state->second / 910) % 1000);
356 }
357}
358
359/* ----------------------------------------------------------------------- */
360
361int autodetect_stereo(struct i2c_client *client)
362{
363 struct msp_state *state = i2c_get_clientdata(client);
364 int val;
365 int rxsubchans = state->rxsubchans;
366 int newnicam = state->nicam_on;
367 int update = 0;
368
369 switch (state->mode) {
370 case MSP_MODE_FM_TERRA:
371 val = msp_read_dsp(client, 0x18);
372 if (val > 32767)
373 val -= 65536;
374 v4l_dbg(2, client, "stereo detect register: %d\n", val);
375 if (val > 4096) {
376 rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_MONO;
377 } else if (val < -4096) {
378 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
379 } else {
380 rxsubchans = V4L2_TUNER_SUB_MONO;
381 }
382 newnicam = 0;
383 break;
384 case MSP_MODE_FM_NICAM1:
385 case MSP_MODE_FM_NICAM2:
386 case MSP_MODE_AM_NICAM:
387 val = msp_read_dem(client, 0x23);
388 v4l_dbg(2, client, "nicam sync=%d, mode=%d\n",
389 val & 1, (val & 0x1e) >> 1);
390
391 if (val & 1) {
392 /* nicam synced */
393 switch ((val & 0x1e) >> 1) {
394 case 0:
395 case 8:
396 rxsubchans = V4L2_TUNER_SUB_STEREO;
397 break;
398 case 1:
399 case 9:
400 rxsubchans = V4L2_TUNER_SUB_MONO
401 | V4L2_TUNER_SUB_LANG1;
402 break;
403 case 2:
404 case 10:
405 rxsubchans = V4L2_TUNER_SUB_MONO
406 | V4L2_TUNER_SUB_LANG1
407 | V4L2_TUNER_SUB_LANG2;
408 break;
409 default:
410 rxsubchans = V4L2_TUNER_SUB_MONO;
411 break;
412 }
413 newnicam = 1;
414 } else {
415 newnicam = 0;
416 rxsubchans = V4L2_TUNER_SUB_MONO;
417 }
418 break;
419 case MSP_MODE_BTSC:
420 val = msp_read_dem(client, 0x200);
421 v4l_dbg(2, client, "status=0x%x (pri=%s, sec=%s, %s%s%s)\n",
422 val,
423 (val & 0x0002) ? "no" : "yes",
424 (val & 0x0004) ? "no" : "yes",
425 (val & 0x0040) ? "stereo" : "mono",
426 (val & 0x0080) ? ", nicam 2nd mono" : "",
427 (val & 0x0100) ? ", bilingual/SAP" : "");
428 rxsubchans = V4L2_TUNER_SUB_MONO;
429 if (val & 0x0040) rxsubchans |= V4L2_TUNER_SUB_STEREO;
430 if (val & 0x0100) rxsubchans |= V4L2_TUNER_SUB_LANG1;
431 break;
432 }
433 if (rxsubchans != state->rxsubchans) {
434 update = 1;
435 v4l_dbg(1, client, "watch: rxsubchans %d => %d\n",
436 state->rxsubchans,rxsubchans);
437 state->rxsubchans = rxsubchans;
438 }
439 if (newnicam != state->nicam_on) {
440 update = 1;
441 v4l_dbg(1, client, "watch: nicam %d => %d\n",
442 state->nicam_on,newnicam);
443 state->nicam_on = newnicam;
444 }
445 return update;
446}
447
448/*
449 * A kernel thread for msp3400 control -- we don't want to block the
450 * in the ioctl while doing the sound carrier & stereo detect
451 */
452/* stereo/multilang monitoring */
453static void watch_stereo(struct i2c_client *client)
454{
455 struct msp_state *state = i2c_get_clientdata(client);
456
457 if (autodetect_stereo(client)) {
458 if (state->stereo & V4L2_TUNER_MODE_STEREO)
459 msp3400c_setstereo(client, V4L2_TUNER_MODE_STEREO);
460 else if (state->stereo & VIDEO_SOUND_LANG1)
461 msp3400c_setstereo(client, V4L2_TUNER_MODE_LANG1);
462 else
463 msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
464 }
465
466 if (once)
467 state->watch_stereo = 0;
468}
469
470int msp3400c_thread(void *data)
471{
472 struct i2c_client *client = data;
473 struct msp_state *state = i2c_get_clientdata(client);
474 struct msp3400c_carrier_detect *cd;
475 int count, max1,max2,val1,val2, val,this;
476
477
478 v4l_dbg(1, client, "msp3400 daemon started\n");
479 for (;;) {
480 v4l_dbg(2, client, "msp3400 thread: sleep\n");
481 msp_sleep(state, -1);
482 v4l_dbg(2, client, "msp3400 thread: wakeup\n");
483
484 restart:
485 v4l_dbg(1, client, "thread: restart scan\n");
486 state->restart = 0;
487 if (kthread_should_stop())
488 break;
489
490 if (VIDEO_MODE_RADIO == state->norm ||
491 MSP_MODE_EXTERN == state->mode) {
492 /* no carrier scan, just unmute */
493 v4l_dbg(1, client, "thread: no carrier scan\n");
494 msp_set_audio(client);
495 continue;
496 }
497
498 /* mute */
499 msp_set_mute(client);
500 msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ );
501 val1 = val2 = 0;
502 max1 = max2 = -1;
503 state->watch_stereo = 0;
504
505 /* some time for the tuner to sync */
506 if (msp_sleep(state,200))
507 goto restart;
508
509 /* carrier detect pass #1 -- main carrier */
510 cd = msp3400c_carrier_detect_main;
511 count = ARRAY_SIZE(msp3400c_carrier_detect_main);
512
513 if (amsound && (state->norm == VIDEO_MODE_SECAM)) {
514 /* autodetect doesn't work well with AM ... */
515 max1 = 3;
516 count = 0;
517 v4l_dbg(1, client, "AM sound override\n");
518 }
519
520 for (this = 0; this < count; this++) {
521 msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
522 if (msp_sleep(state,100))
523 goto restart;
524 val = msp_read_dsp(client, 0x1b);
525 if (val > 32767)
526 val -= 65536;
527 if (val1 < val)
528 val1 = val, max1 = this;
529 v4l_dbg(1, client, "carrier1 val: %5d / %s\n", val,cd[this].name);
530 }
531
532 /* carrier detect pass #2 -- second (stereo) carrier */
533 switch (max1) {
534 case 1: /* 5.5 */
535 cd = msp3400c_carrier_detect_55;
536 count = ARRAY_SIZE(msp3400c_carrier_detect_55);
537 break;
538 case 3: /* 6.5 */
539 cd = msp3400c_carrier_detect_65;
540 count = ARRAY_SIZE(msp3400c_carrier_detect_65);
541 break;
542 case 0: /* 4.5 */
543 case 2: /* 6.0 */
544 default:
545 cd = NULL;
546 count = 0;
547 break;
548 }
549
550 if (amsound && (state->norm == VIDEO_MODE_SECAM)) {
551 /* autodetect doesn't work well with AM ... */
552 cd = NULL;
553 count = 0;
554 max2 = 0;
555 }
556 for (this = 0; this < count; this++) {
557 msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
558 if (msp_sleep(state,100))
559 goto restart;
560 val = msp_read_dsp(client, 0x1b);
561 if (val > 32767)
562 val -= 65536;
563 if (val2 < val)
564 val2 = val, max2 = this;
565 v4l_dbg(1, client, "carrier2 val: %5d / %s\n", val,cd[this].name);
566 }
567
568 /* program the msp3400 according to the results */
569 state->main = msp3400c_carrier_detect_main[max1].cdo;
570 switch (max1) {
571 case 1: /* 5.5 */
572 if (max2 == 0) {
573 /* B/G FM-stereo */
574 state->second = msp3400c_carrier_detect_55[max2].cdo;
575 msp3400c_setmode(client, MSP_MODE_FM_TERRA);
576 state->nicam_on = 0;
577 msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
578 state->watch_stereo = 1;
579 } else if (max2 == 1 && HAVE_NICAM(state)) {
580 /* B/G NICAM */
581 state->second = msp3400c_carrier_detect_55[max2].cdo;
582 msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
583 state->nicam_on = 1;
584 msp3400c_setcarrier(client, state->second, state->main);
585 state->watch_stereo = 1;
586 } else {
587 goto no_second;
588 }
589 break;
590 case 2: /* 6.0 */
591 /* PAL I NICAM */
592 state->second = MSP_CARRIER(6.552);
593 msp3400c_setmode(client, MSP_MODE_FM_NICAM2);
594 state->nicam_on = 1;
595 msp3400c_setcarrier(client, state->second, state->main);
596 state->watch_stereo = 1;
597 break;
598 case 3: /* 6.5 */
599 if (max2 == 1 || max2 == 2) {
600 /* D/K FM-stereo */
601 state->second = msp3400c_carrier_detect_65[max2].cdo;
602 msp3400c_setmode(client, MSP_MODE_FM_TERRA);
603 state->nicam_on = 0;
604 msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
605 state->watch_stereo = 1;
606 } else if (max2 == 0 &&
607 state->norm == VIDEO_MODE_SECAM) {
608 /* L NICAM or AM-mono */
609 state->second = msp3400c_carrier_detect_65[max2].cdo;
610 msp3400c_setmode(client, MSP_MODE_AM_NICAM);
611 state->nicam_on = 0;
612 msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
613 msp3400c_setcarrier(client, state->second, state->main);
614 /* volume prescale for SCART (AM mono input) */
615 msp_write_dsp(client, 0x000d, 0x1900);
616 state->watch_stereo = 1;
617 } else if (max2 == 0 && HAVE_NICAM(state)) {
618 /* D/K NICAM */
619 state->second = msp3400c_carrier_detect_65[max2].cdo;
620 msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
621 state->nicam_on = 1;
622 msp3400c_setcarrier(client, state->second, state->main);
623 state->watch_stereo = 1;
624 } else {
625 goto no_second;
626 }
627 break;
628 case 0: /* 4.5 */
629 default:
630 no_second:
631 state->second = msp3400c_carrier_detect_main[max1].cdo;
632 msp3400c_setmode(client, MSP_MODE_FM_TERRA);
633 state->nicam_on = 0;
634 msp3400c_setcarrier(client, state->second, state->main);
635 state->rxsubchans = V4L2_TUNER_SUB_MONO;
636 msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
637 break;
638 }
639
640 /* unmute */
641 msp_set_audio(client);
642
643 if (debug)
644 msp3400c_print_mode(client);
645
646 /* monitor tv audio mode */
647 while (state->watch_stereo) {
648 if (msp_sleep(state,5000))
649 goto restart;
650 watch_stereo(client);
651 }
652 }
653 v4l_dbg(1, client, "thread: exit\n");
654 return 0;
655}
656
657
658int msp3410d_thread(void *data)
659{
660 struct i2c_client *client = data;
661 struct msp_state *state = i2c_get_clientdata(client);
662 int mode,val,i,std;
663
664 v4l_dbg(1, client, "msp3410 daemon started\n");
665
666 for (;;) {
667 v4l_dbg(2, client, "msp3410 thread: sleep\n");
668 msp_sleep(state,-1);
669 v4l_dbg(2, client, "msp3410 thread: wakeup\n");
670
671 restart:
672 v4l_dbg(1, client, "thread: restart scan\n");
673 state->restart = 0;
674 if (kthread_should_stop())
675 break;
676
677 if (state->mode == MSP_MODE_EXTERN) {
678 /* no carrier scan needed, just unmute */
679 v4l_dbg(1, client, "thread: no carrier scan\n");
680 msp_set_audio(client);
681 continue;
682 }
683
684 /* put into sane state (and mute) */
685 msp_reset(client);
686
687 /* some time for the tuner to sync */
688 if (msp_sleep(state,200))
689 goto restart;
690
691 /* start autodetect */
692 mode = msp_modus(client, state->norm);
693 std = msp_standard(state->norm);
694 msp_write_dem(client, 0x30, mode);
695 msp_write_dem(client, 0x20, std);
696 state->watch_stereo = 0;
697
698 if (debug)
699 v4l_dbg(1, client, "setting mode: %s (0x%04x)\n",
700 msp_standard_mode_name(std), std);
701
702 if (std != 1) {
703 /* programmed some specific mode */
704 val = std;
705 } else {
706 /* triggered autodetect */
707 for (;;) {
708 if (msp_sleep(state,100))
709 goto restart;
710
711 /* check results */
712 val = msp_read_dem(client, 0x7e);
713 if (val < 0x07ff)
714 break;
715 v4l_dbg(1, client, "detection still in progress\n");
716 }
717 }
718 for (i = 0; msp_modelist[i].name != NULL; i++)
719 if (msp_modelist[i].retval == val)
720 break;
721 v4l_dbg(1, client, "current mode: %s (0x%04x)\n",
722 msp_standard_mode_name(val), val);
723 state->main = msp_modelist[i].main;
724 state->second = msp_modelist[i].second;
725
726 if (amsound && (state->norm == VIDEO_MODE_SECAM) && (val != 0x0009)) {
727 /* autodetection has failed, let backup */
728 v4l_dbg(1, client, "autodetection failed,"
729 " switching to backup mode: %s (0x%04x)\n",
730 msp_modelist[8].name ? msp_modelist[8].name : "unknown",val);
731 val = 0x0009;
732 msp_write_dem(client, 0x20, val);
733 }
734
735 /* set various prescales */
736 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
737 msp_write_dsp(client, 0x0e, 0x2403); /* FM */
738 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
739
740 /* set stereo */
741 switch (val) {
742 case 0x0008: /* B/G NICAM */
743 case 0x000a: /* I NICAM */
744 if (val == 0x0008)
745 state->mode = MSP_MODE_FM_NICAM1;
746 else
747 state->mode = MSP_MODE_FM_NICAM2;
748 /* just turn on stereo */
749 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
750 state->nicam_on = 1;
751 state->watch_stereo = 1;
752 msp3400c_setstereo(client,V4L2_TUNER_MODE_STEREO);
753 break;
754 case 0x0009:
755 state->mode = MSP_MODE_AM_NICAM;
756 state->rxsubchans = V4L2_TUNER_SUB_MONO;
757 state->nicam_on = 1;
758 msp3400c_setstereo(client,V4L2_TUNER_MODE_MONO);
759 state->watch_stereo = 1;
760 break;
761 case 0x0020: /* BTSC */
762 /* just turn on stereo */
763 state->mode = MSP_MODE_BTSC;
764 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
765 state->nicam_on = 0;
766 state->watch_stereo = 1;
767 msp3400c_setstereo(client,V4L2_TUNER_MODE_STEREO);
768 break;
769 case 0x0040: /* FM radio */
770 state->mode = MSP_MODE_FM_RADIO;
771 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
772 state->audmode = V4L2_TUNER_MODE_STEREO;
773 state->nicam_on = 0;
774 state->watch_stereo = 0;
775 /* not needed in theory if HAVE_RADIO(), but
776 short programming enables carrier mute */
777 msp3400c_setmode(client,MSP_MODE_FM_RADIO);
778 msp3400c_setcarrier(client, MSP_CARRIER(10.7),
779 MSP_CARRIER(10.7));
780 /* scart routing */
781 msp_set_scart(client,SCART_IN2,0);
782 /* msp34xx does radio decoding */
783 msp_write_dsp(client, 0x08, 0x0020);
784 msp_write_dsp(client, 0x09, 0x0020);
785 msp_write_dsp(client, 0x0b, 0x0020);
786 break;
787 case 0x0003:
788 case 0x0004:
789 case 0x0005:
790 state->mode = MSP_MODE_FM_TERRA;
791 state->rxsubchans = V4L2_TUNER_SUB_MONO;
792 state->audmode = V4L2_TUNER_MODE_MONO;
793 state->nicam_on = 0;
794 state->watch_stereo = 1;
795 break;
796 }
797
798 /* unmute, restore misc registers */
799 msp_set_audio(client);
800 msp_write_dsp(client, 0x13, state->acb);
801 msp_write_dem(client, 0x40, state->i2s_mode);
802
803 /* monitor tv audio mode */
804 while (state->watch_stereo) {
805 if (msp_sleep(state,5000))
806 goto restart;
807 watch_stereo(client);
808 }
809 }
810 v4l_dbg(1, client, "thread: exit\n");
811 return 0;
812}
813
814/* ----------------------------------------------------------------------- */
815
816/* msp34xxG + (autoselect no-thread) */
817/* this one uses both automatic standard detection and automatic sound */
818/* select which are available in the newer G versions */
819/* struct msp: only norm, acb and source are really used in this mode */
820
821/* set the same 'source' for the loudspeaker, scart and quasi-peak detector
822 * the value for source is the same as bit 15:8 of DSP registers 0x08,
823 * 0x0a and 0x0c: 0=mono, 1=stereo or A|B, 2=SCART, 3=stereo or A, 4=stereo or B
824 *
825 * this function replaces msp3400c_setstereo
826 */
827static void msp34xxg_set_source(struct i2c_client *client, int source)
828{
829 struct msp_state *state = i2c_get_clientdata(client);
830
831 /* fix matrix mode to stereo and let the msp choose what
832 * to output according to 'source', as recommended
833 * for MONO (source==0) downmixing set bit[7:0] to 0x30
834 */
835 int value = (source & 0x07) << 8 | (source == 0 ? 0x30 : 0x20);
836
837 v4l_dbg(1, client, "set source to %d (0x%x)\n", source, value);
838 /* Loudspeaker Output */
839 msp_write_dsp(client, 0x08, value);
840 /* SCART1 DA Output */
841 msp_write_dsp(client, 0x0a, value);
842 /* Quasi-peak detector */
843 msp_write_dsp(client, 0x0c, value);
844 /*
845 * set identification threshold. Personally, I
846 * I set it to a higher value that the default
847 * of 0x190 to ignore noisy stereo signals.
848 * this needs tuning. (recommended range 0x00a0-0x03c0)
849 * 0x7f0 = forced mono mode
850 */
851 /* a2 threshold for stereo/bilingual */
852 msp_write_dem(client, 0x22, stereo_threshold);
853 state->source = source;
854}
855
856/* (re-)initialize the msp34xxg, according to the current norm in state->norm
857 * return 0 if it worked, -1 if it failed
858 */
859static int msp34xxg_reset(struct i2c_client *client)
860{
861 struct msp_state *state = i2c_get_clientdata(client);
862 int modus, std;
863
864 if (msp_reset(client))
865 return -1;
866
867 /* make sure that input/output is muted (paranoid mode) */
868 /* ACB, mute DSP input, mute SCART 1 */
869 if (msp_write_dsp(client, 0x13, 0x0f20))
870 return -1;
871
872 msp_write_dem(client, 0x40, state->i2s_mode);
873
874 /* step-by-step initialisation, as described in the manual */
875 modus = msp_modus(client, state->norm);
876 std = msp_standard(state->norm);
877 modus &= ~0x03; /* STATUS_CHANGE = 0 */
878 modus |= 0x01; /* AUTOMATIC_SOUND_DETECTION = 1 */
879 if (msp_write_dem(client, 0x30, modus))
880 return -1;
881 if (msp_write_dem(client, 0x20, std))
882 return -1;
883
884 /* write the dsps that may have an influence on
885 standard/audio autodetection right now */
886 msp34xxg_set_source(client, state->source);
887
888 /* AM/FM Prescale [15:8] 75khz deviation */
889 if (msp_write_dsp(client, 0x0e, 0x3000))
890 return -1;
891
892 /* NICAM Prescale 9db gain (as recommended) */
893 if (msp_write_dsp(client, 0x10, 0x5a00))
894 return -1;
895
896 return 0;
897}
898
899int msp34xxg_thread(void *data)
900{
901 struct i2c_client *client = data;
902 struct msp_state *state = i2c_get_clientdata(client);
903 int val, std, i;
904
905 v4l_dbg(1, client, "msp34xxg daemon started\n");
906
907 state->source = 1; /* default */
908 for (;;) {
909 v4l_dbg(2, client, "msp34xxg thread: sleep\n");
910 msp_sleep(state, -1);
911 v4l_dbg(2, client, "msp34xxg thread: wakeup\n");
912
913 restart:
914 v4l_dbg(1, client, "thread: restart scan\n");
915 state->restart = 0;
916 if (kthread_should_stop())
917 break;
918
919 /* setup the chip*/
920 msp34xxg_reset(client);
921 std = standard;
922 if (std != 0x01)
923 goto unmute;
924
925 /* watch autodetect */
926 v4l_dbg(1, client, "triggered autodetect, waiting for result\n");
927 for (i = 0; i < 10; i++) {
928 if (msp_sleep(state, 100))
929 goto restart;
930
931 /* check results */
932 val = msp_read_dem(client, 0x7e);
933 if (val < 0x07ff) {
934 std = val;
935 break;
936 }
937 v4l_dbg(2, client, "detection still in progress\n");
938 }
939 if (std == 1) {
940 v4l_dbg(1, client, "detection still in progress after 10 tries. giving up.\n");
941 continue;
942 }
943
944 unmute:
945 state->mode = std;
946 v4l_dbg(1, client, "current mode: %s (0x%04x)\n",
947 msp_standard_mode_name(std), std);
948
949 /* unmute: dispatch sound to scart output, set scart volume */
950 msp_set_audio(client);
951
952 /* restore ACB */
953 if (msp_write_dsp(client, 0x13, state->acb))
954 return -1;
955
956 msp_write_dem(client, 0x40, state->i2s_mode);
957 }
958 v4l_dbg(1, client, "thread: exit\n");
959 return 0;
960}
961
962void msp34xxg_detect_stereo(struct i2c_client *client)
963{
964 struct msp_state *state = i2c_get_clientdata(client);
965
966 int status = msp_read_dem(client, 0x0200);
967 int is_bilingual = status & 0x100;
968 int is_stereo = status & 0x40;
969
970 state->rxsubchans = 0;
971 if (is_stereo)
972 state->rxsubchans |= V4L2_TUNER_SUB_STEREO;
973 else
974 state->rxsubchans |= V4L2_TUNER_SUB_MONO;
975 if (is_bilingual) {
976 state->rxsubchans |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
977 /* I'm supposed to check whether it's SAP or not
978 * and set only LANG2/SAP in this case. Yet, the MSP
979 * does a lot of work to hide this and handle everything
980 * the same way. I don't want to work around it so unless
981 * this is a problem, I'll handle SAP just like lang1/lang2.
982 */
983 }
984 v4l_dbg(1, client, "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
985 status, is_stereo, is_bilingual, state->rxsubchans);
986}
987
988void msp34xxg_set_audmode(struct i2c_client *client, int audmode)
989{
990 struct msp_state *state = i2c_get_clientdata(client);
991 int source;
992
993 switch (audmode) {
994 case V4L2_TUNER_MODE_MONO:
995 source = 0; /* mono only */
996 break;
997 case V4L2_TUNER_MODE_STEREO:
998 source = 1; /* stereo or A|B, see comment in msp34xxg_get_v4l2_stereo() */
999 /* problem: that could also mean 2 (scart input) */
1000 break;
1001 case V4L2_TUNER_MODE_LANG1:
1002 source = 3; /* stereo or A */
1003 break;
1004 case V4L2_TUNER_MODE_LANG2:
1005 source = 4; /* stereo or B */
1006 break;
1007 default:
1008 audmode = 0;
1009 source = 1;
1010 break;
1011 }
1012 state->audmode = audmode;
1013 msp34xxg_set_source(client, source);
1014}
1015
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