2 * Programming the mspx4xx sound processor family
4 * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
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.
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.
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
23 #include <linux/kernel.h>
24 #include <linux/module.h>
25 #include <linux/slab.h>
26 #include <linux/i2c.h>
27 #include <linux/freezer.h>
28 #include <linux/videodev.h>
29 #include <linux/videodev2.h>
30 #include <media/v4l2-common.h>
31 #include <media/msp3400.h>
32 #include <linux/kthread.h>
33 #include <linux/suspend.h>
34 #include "msp3400-driver.h"
36 /* this one uses the automatic sound standard detection of newer msp34xx
43 { 0x0000, 0, 0, "could not detect sound standard" },
44 { 0x0001, 0, 0, "autodetect start" },
45 { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72 M Dual FM-Stereo" },
46 { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74 B/G Dual FM-Stereo" },
47 { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25 D/K1 Dual FM-Stereo" },
48 { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74 D/K2 Dual FM-Stereo" },
49 { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 D/K FM-Mono (HDEV3)" },
50 { 0x0007, MSP_CARRIER(6.5), MSP_CARRIER(5.7421875), "6.5/5.74 D/K3 Dual FM-Stereo" },
51 { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" },
52 { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" },
53 { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" },
54 { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" },
55 { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" },
56 { 0x000d, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV3)" },
57 { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" },
58 { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" },
59 { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" },
60 { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" },
61 { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" },
62 { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" },
63 { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" },
64 { -1, 0, 0, NULL }, /* EOF */
67 static struct msp3400c_init_data_dem {
76 } msp3400c_init_data[] = {
77 { /* AM (for carrier detect / msp3400) */
78 {75, 19, 36, 35, 39, 40},
79 {75, 19, 36, 35, 39, 40},
80 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
81 0x00d0, 0x0500, 0x0020, 0x3000
82 }, { /* AM (for carrier detect / msp3410) */
83 {-1, -1, -8, 2, 59, 126},
84 {-1, -1, -8, 2, 59, 126},
85 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
86 0x00d0, 0x0100, 0x0020, 0x3000
88 {-8, -8, 4, 6, 78, 107},
89 {-8, -8, 4, 6, 78, 107},
90 MSP_CARRIER(10.7), MSP_CARRIER(10.7),
91 0x00d0, 0x0480, 0x0020, 0x3000
92 }, { /* Terrestial FM-mono + FM-stereo */
93 {3, 18, 27, 48, 66, 72},
94 {3, 18, 27, 48, 66, 72},
95 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
96 0x00d0, 0x0480, 0x0030, 0x3000
97 }, { /* Sat FM-mono */
98 { 1, 9, 14, 24, 33, 37},
99 { 3, 18, 27, 48, 66, 72},
100 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
101 0x00c6, 0x0480, 0x0000, 0x3000
102 }, { /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */
103 {-2, -8, -10, 10, 50, 86},
104 {3, 18, 27, 48, 66, 72},
105 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
106 0x00d0, 0x0040, 0x0120, 0x3000
107 }, { /* NICAM/FM -- I (6.0/6.552) */
108 {2, 4, -6, -4, 40, 94},
109 {3, 18, 27, 48, 66, 72},
110 MSP_CARRIER(6.0), MSP_CARRIER(6.0),
111 0x00d0, 0x0040, 0x0120, 0x3000
112 }, { /* NICAM/AM -- L (6.5/5.85) */
113 {-2, -8, -10, 10, 50, 86},
114 {-4, -12, -9, 23, 79, 126},
115 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
116 0x00c6, 0x0140, 0x0120, 0x7c00
120 struct msp3400c_carrier_detect {
125 static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = {
127 { MSP_CARRIER(4.5), "4.5 NTSC" },
128 { MSP_CARRIER(5.5), "5.5 PAL B/G" },
129 { MSP_CARRIER(6.0), "6.0 PAL I" },
130 { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" }
133 static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = {
135 { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" },
136 { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" }
139 static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = {
140 /* PAL SAT / SECAM */
141 { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" },
142 { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" },
143 { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" },
144 { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" },
145 { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" },
146 { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" },
149 /* ------------------------------------------------------------------------ */
151 const char *msp_standard_std_name(int std)
155 for (i = 0; msp_stdlist[i].name != NULL; i++)
156 if (msp_stdlist[i].retval == std)
157 return msp_stdlist[i].name;
161 static void msp_set_source(struct i2c_client *client, u16 src)
163 struct msp_state *state = i2c_get_clientdata(client);
166 msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */
167 msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */
169 msp_write_dsp(client, 0x0008, src);
170 msp_write_dsp(client, 0x0009, src);
172 msp_write_dsp(client, 0x000a, src);
173 msp_write_dsp(client, 0x000b, src);
174 msp_write_dsp(client, 0x000c, src);
175 if (state->has_scart2_out)
176 msp_write_dsp(client, 0x0041, src);
179 void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2)
181 msp_write_dem(client, 0x0093, cdo1 & 0xfff);
182 msp_write_dem(client, 0x009b, cdo1 >> 12);
183 msp_write_dem(client, 0x00a3, cdo2 & 0xfff);
184 msp_write_dem(client, 0x00ab, cdo2 >> 12);
185 msp_write_dem(client, 0x0056, 0); /* LOAD_REG_1/2 */
188 void msp3400c_set_mode(struct i2c_client *client, int mode)
190 struct msp_state *state = i2c_get_clientdata(client);
191 struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode];
192 int tuner = (state->routing.input >> 3) & 1;
195 v4l_dbg(1, msp_debug, client, "set_mode: %d\n", mode);
197 state->rxsubchans = V4L2_TUNER_SUB_MONO;
199 msp_write_dem(client, 0x00bb, data->ad_cv | (tuner ? 0x100 : 0));
201 for (i = 5; i >= 0; i--) /* fir 1 */
202 msp_write_dem(client, 0x0001, data->fir1[i]);
204 msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */
205 msp_write_dem(client, 0x0005, 0x0040);
206 msp_write_dem(client, 0x0005, 0x0000);
207 for (i = 5; i >= 0; i--)
208 msp_write_dem(client, 0x0005, data->fir2[i]);
210 msp_write_dem(client, 0x0083, data->mode_reg);
212 msp3400c_set_carrier(client, data->cdo1, data->cdo2);
214 msp_set_source(client, data->dsp_src);
217 /* volume prescale for SCART (AM mono input) */
218 msp_write_dsp(client, 0x000d, 0x1900);
219 msp_write_dsp(client, 0x000e, data->dsp_matrix);
220 if (state->has_nicam) /* nicam prescale */
221 msp_write_dsp(client, 0x0010, 0x5a00);
224 /* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP,
225 nor do they support stereo BTSC. */
226 static void msp3400c_set_audmode(struct i2c_client *client)
228 static char *strmode[] = {
229 "mono", "stereo", "lang2", "lang1", "lang1+lang2"
231 struct msp_state *state = i2c_get_clientdata(client);
232 char *modestr = (state->audmode >= 0 && state->audmode < 5) ?
233 strmode[state->audmode] : "unknown";
234 int src = 0; /* channel source: FM/AM, nicam or SCART */
235 int audmode = state->audmode;
237 if (state->opmode == OPMODE_AUTOSELECT) {
238 /* this method would break everything, let's make sure
241 v4l_dbg(1, msp_debug, client,
242 "set_audmode called with mode=%d instead of set_source (ignored)\n",
247 /* Note: for the C and D revs no NTSC stereo + SAP is possible as
248 the hardware does not support SAP. So the rxsubchans combination
249 of STEREO | LANG2 does not occur. */
251 if (state->mode != MSP_MODE_EXTERN) {
252 /* switch to mono if only mono is available */
253 if (state->rxsubchans == V4L2_TUNER_SUB_MONO)
254 audmode = V4L2_TUNER_MODE_MONO;
256 else if (state->rxsubchans & V4L2_TUNER_SUB_LANG2) {
257 /* and mono or stereo, then fallback to lang1 */
258 if (audmode == V4L2_TUNER_MODE_MONO ||
259 audmode == V4L2_TUNER_MODE_STEREO)
260 audmode = V4L2_TUNER_MODE_LANG1;
262 /* if stereo, and audmode is not mono, then switch to stereo */
263 else if (audmode != V4L2_TUNER_MODE_MONO)
264 audmode = V4L2_TUNER_MODE_STEREO;
267 /* switch demodulator */
268 switch (state->mode) {
269 case MSP_MODE_FM_TERRA:
270 v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr);
272 case V4L2_TUNER_MODE_STEREO:
273 msp_write_dsp(client, 0x000e, 0x3001);
275 case V4L2_TUNER_MODE_MONO:
276 case V4L2_TUNER_MODE_LANG1:
277 case V4L2_TUNER_MODE_LANG2:
278 case V4L2_TUNER_MODE_LANG1_LANG2:
279 msp_write_dsp(client, 0x000e, 0x3000);
283 case MSP_MODE_FM_SAT:
284 v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr);
286 case V4L2_TUNER_MODE_MONO:
287 msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
289 case V4L2_TUNER_MODE_STEREO:
290 case V4L2_TUNER_MODE_LANG1_LANG2:
291 msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
293 case V4L2_TUNER_MODE_LANG1:
294 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
296 case V4L2_TUNER_MODE_LANG2:
297 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
301 case MSP_MODE_FM_NICAM1:
302 case MSP_MODE_FM_NICAM2:
303 case MSP_MODE_AM_NICAM:
304 v4l_dbg(1, msp_debug, client,
305 "NICAM set_audmode: %s\n", modestr);
307 src = 0x0100; /* NICAM */
310 v4l_dbg(1, msp_debug, client,
311 "BTSC set_audmode: %s\n", modestr);
313 case MSP_MODE_EXTERN:
314 v4l_dbg(1, msp_debug, client,
315 "extern set_audmode: %s\n", modestr);
316 src = 0x0200; /* SCART */
318 case MSP_MODE_FM_RADIO:
319 v4l_dbg(1, msp_debug, client,
320 "FM-Radio set_audmode: %s\n", modestr);
323 v4l_dbg(1, msp_debug, client, "mono set_audmode\n");
328 v4l_dbg(1, msp_debug, client, "set audmode %d\n", audmode);
330 case V4L2_TUNER_MODE_STEREO:
331 case V4L2_TUNER_MODE_LANG1_LANG2:
334 case V4L2_TUNER_MODE_MONO:
335 if (state->mode == MSP_MODE_AM_NICAM) {
336 v4l_dbg(1, msp_debug, client, "switching to AM mono\n");
337 /* AM mono decoding is handled by tuner, not MSP chip */
338 /* SCART switching control register */
339 msp_set_scart(client, SCART_MONO, 0);
343 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
346 case V4L2_TUNER_MODE_LANG1:
348 case V4L2_TUNER_MODE_LANG2:
352 v4l_dbg(1, msp_debug, client,
353 "set_audmode final source/matrix = 0x%x\n", src);
355 msp_set_source(client, src);
358 static void msp3400c_print_mode(struct i2c_client *client)
360 struct msp_state *state = i2c_get_clientdata(client);
362 if (state->main == state->second)
363 v4l_dbg(1, msp_debug, client,
364 "mono sound carrier: %d.%03d MHz\n",
365 state->main / 910000, (state->main / 910) % 1000);
367 v4l_dbg(1, msp_debug, client,
368 "main sound carrier: %d.%03d MHz\n",
369 state->main / 910000, (state->main / 910) % 1000);
370 if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2)
371 v4l_dbg(1, msp_debug, client,
372 "NICAM/FM carrier : %d.%03d MHz\n",
373 state->second / 910000, (state->second/910) % 1000);
374 if (state->mode == MSP_MODE_AM_NICAM)
375 v4l_dbg(1, msp_debug, client,
376 "NICAM/AM carrier : %d.%03d MHz\n",
377 state->second / 910000, (state->second / 910) % 1000);
378 if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) {
379 v4l_dbg(1, msp_debug, client,
380 "FM-stereo carrier : %d.%03d MHz\n",
381 state->second / 910000, (state->second / 910) % 1000);
385 /* ----------------------------------------------------------------------- */
387 static int msp3400c_detect_stereo(struct i2c_client *client)
389 struct msp_state *state = i2c_get_clientdata(client);
391 int rxsubchans = state->rxsubchans;
392 int newnicam = state->nicam_on;
395 switch (state->mode) {
396 case MSP_MODE_FM_TERRA:
397 val = msp_read_dsp(client, 0x18);
400 v4l_dbg(2, msp_debug, client,
401 "stereo detect register: %d\n", val);
403 rxsubchans = V4L2_TUNER_SUB_STEREO;
404 } else if (val < -4096) {
405 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
407 rxsubchans = V4L2_TUNER_SUB_MONO;
411 case MSP_MODE_FM_NICAM1:
412 case MSP_MODE_FM_NICAM2:
413 case MSP_MODE_AM_NICAM:
414 val = msp_read_dem(client, 0x23);
415 v4l_dbg(2, msp_debug, client, "nicam sync=%d, mode=%d\n",
416 val & 1, (val & 0x1e) >> 1);
420 switch ((val & 0x1e) >> 1) {
423 rxsubchans = V4L2_TUNER_SUB_STEREO;
427 rxsubchans = V4L2_TUNER_SUB_MONO;
431 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
434 rxsubchans = V4L2_TUNER_SUB_MONO;
440 rxsubchans = V4L2_TUNER_SUB_MONO;
444 if (rxsubchans != state->rxsubchans) {
446 v4l_dbg(1, msp_debug, client,
447 "watch: rxsubchans %02x => %02x\n",
448 state->rxsubchans, rxsubchans);
449 state->rxsubchans = rxsubchans;
451 if (newnicam != state->nicam_on) {
453 v4l_dbg(1, msp_debug, client, "watch: nicam %d => %d\n",
454 state->nicam_on, newnicam);
455 state->nicam_on = newnicam;
461 * A kernel thread for msp3400 control -- we don't want to block the
462 * in the ioctl while doing the sound carrier & stereo detect
464 /* stereo/multilang monitoring */
465 static void watch_stereo(struct i2c_client *client)
467 struct msp_state *state = i2c_get_clientdata(client);
469 if (msp_detect_stereo(client))
470 msp_set_audmode(client);
473 state->watch_stereo = 0;
476 int msp3400c_thread(void *data)
478 struct i2c_client *client = data;
479 struct msp_state *state = i2c_get_clientdata(client);
480 struct msp3400c_carrier_detect *cd;
481 int count, max1, max2, val1, val2, val, i;
484 v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n");
487 v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n");
488 msp_sleep(state, -1);
489 v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n");
492 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
494 if (kthread_should_stop())
497 if (state->radio || MSP_MODE_EXTERN == state->mode) {
498 /* no carrier scan, just unmute */
499 v4l_dbg(1, msp_debug, client,
500 "thread: no carrier scan\n");
501 state->scan_in_progress = 0;
502 msp_set_audio(client);
507 state->scan_in_progress = 1;
508 msp_set_audio(client);
510 msp3400c_set_mode(client, MSP_MODE_AM_DETECT);
513 state->watch_stereo = 0;
516 /* wait for tuner to settle down after a channel change */
517 if (msp_sleep(state, 200))
520 /* carrier detect pass #1 -- main carrier */
521 cd = msp3400c_carrier_detect_main;
522 count = ARRAY_SIZE(msp3400c_carrier_detect_main);
524 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
525 /* autodetect doesn't work well with AM ... */
528 v4l_dbg(1, msp_debug, client, "AM sound override\n");
531 for (i = 0; i < count; i++) {
532 msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo);
533 if (msp_sleep(state, 100))
535 val = msp_read_dsp(client, 0x1b);
539 val1 = val, max1 = i;
540 v4l_dbg(1, msp_debug, client,
541 "carrier1 val: %5d / %s\n", val, cd[i].name);
544 /* carrier detect pass #2 -- second (stereo) carrier */
547 cd = msp3400c_carrier_detect_55;
548 count = ARRAY_SIZE(msp3400c_carrier_detect_55);
551 cd = msp3400c_carrier_detect_65;
552 count = ARRAY_SIZE(msp3400c_carrier_detect_65);
562 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
563 /* autodetect doesn't work well with AM ... */
568 for (i = 0; i < count; i++) {
569 msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo);
570 if (msp_sleep(state, 100))
572 val = msp_read_dsp(client, 0x1b);
576 val2 = val, max2 = i;
577 v4l_dbg(1, msp_debug, client,
578 "carrier2 val: %5d / %s\n", val, cd[i].name);
581 /* program the msp3400 according to the results */
582 state->main = msp3400c_carrier_detect_main[max1].cdo;
587 state->second = msp3400c_carrier_detect_55[max2].cdo;
588 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
589 state->watch_stereo = 1;
590 } else if (max2 == 1 && state->has_nicam) {
592 state->second = msp3400c_carrier_detect_55[max2].cdo;
593 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
595 state->watch_stereo = 1;
602 state->second = MSP_CARRIER(6.552);
603 msp3400c_set_mode(client, MSP_MODE_FM_NICAM2);
605 state->watch_stereo = 1;
608 if (max2 == 1 || max2 == 2) {
610 state->second = msp3400c_carrier_detect_65[max2].cdo;
611 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
612 state->watch_stereo = 1;
613 } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) {
614 /* L NICAM or AM-mono */
615 state->second = msp3400c_carrier_detect_65[max2].cdo;
616 msp3400c_set_mode(client, MSP_MODE_AM_NICAM);
617 state->watch_stereo = 1;
618 } else if (max2 == 0 && state->has_nicam) {
620 state->second = msp3400c_carrier_detect_65[max2].cdo;
621 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
623 state->watch_stereo = 1;
631 state->second = msp3400c_carrier_detect_main[max1].cdo;
632 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
635 msp3400c_set_carrier(client, state->second, state->main);
638 state->scan_in_progress = 0;
639 msp3400c_set_audmode(client);
640 msp_set_audio(client);
643 msp3400c_print_mode(client);
645 /* monitor tv audio mode, the first time don't wait
646 so long to get a quick stereo/bilingual result */
648 while (state->watch_stereo) {
649 if (msp_sleep(state, count ? 1000 : 5000))
653 watch_stereo(client);
656 v4l_dbg(1, msp_debug, client, "thread: exit\n");
661 int msp3410d_thread(void *data)
663 struct i2c_client *client = data;
664 struct msp_state *state = i2c_get_clientdata(client);
665 int val, i, std, count;
667 v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n");
670 v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n");
671 msp_sleep(state, -1);
672 v4l_dbg(2, msp_debug, client, "msp3410 thread: wakeup\n");
675 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
677 if (kthread_should_stop())
680 if (state->mode == MSP_MODE_EXTERN) {
681 /* no carrier scan needed, just unmute */
682 v4l_dbg(1, msp_debug, client,
683 "thread: no carrier scan\n");
684 state->scan_in_progress = 0;
685 msp_set_audio(client);
690 state->scan_in_progress = 1;
691 msp_set_audio(client);
693 /* start autodetect. Note: autodetect is not supported for
694 NTSC-M and radio, hence we force the standard in those
699 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1;
700 state->watch_stereo = 0;
703 /* wait for tuner to settle down after a channel change */
704 if (msp_sleep(state, 200))
708 v4l_dbg(2, msp_debug, client,
709 "setting standard: %s (0x%04x)\n",
710 msp_standard_std_name(std), std);
713 /* programmed some specific mode */
716 /* triggered autodetect */
717 msp_write_dem(client, 0x20, std);
719 if (msp_sleep(state, 100))
723 val = msp_read_dem(client, 0x7e);
726 v4l_dbg(2, msp_debug, client,
727 "detection still in progress\n");
730 for (i = 0; msp_stdlist[i].name != NULL; i++)
731 if (msp_stdlist[i].retval == val)
733 v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n",
734 msp_standard_std_name(val), val);
735 state->main = msp_stdlist[i].main;
736 state->second = msp_stdlist[i].second;
738 state->rxsubchans = V4L2_TUNER_SUB_MONO;
740 if (msp_amsound && !state->radio &&
741 (state->v4l2_std & V4L2_STD_SECAM) && (val != 0x0009)) {
742 /* autodetection has failed, let backup */
743 v4l_dbg(1, msp_debug, client, "autodetection failed,"
744 " switching to backup standard: %s (0x%04x)\n",
745 msp_stdlist[8].name ?
746 msp_stdlist[8].name : "unknown", val);
747 state->std = val = 0x0009;
748 msp_write_dem(client, 0x20, val);
753 case 0x0008: /* B/G NICAM */
754 case 0x000a: /* I NICAM */
755 case 0x000b: /* D/K NICAM */
757 state->mode = MSP_MODE_FM_NICAM2;
759 state->mode = MSP_MODE_FM_NICAM1;
760 /* just turn on stereo */
762 state->watch_stereo = 1;
765 state->mode = MSP_MODE_AM_NICAM;
767 state->watch_stereo = 1;
769 case 0x0020: /* BTSC */
770 /* The pre-'G' models only have BTSC-mono */
771 state->mode = MSP_MODE_BTSC;
773 case 0x0040: /* FM radio */
774 state->mode = MSP_MODE_FM_RADIO;
775 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
776 /* not needed in theory if we have radio, but
777 short programming enables carrier mute */
778 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
779 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
786 state->mode = MSP_MODE_FM_TERRA;
787 state->watch_stereo = 1;
791 /* set various prescales */
792 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
793 msp_write_dsp(client, 0x0e, 0x3000); /* FM */
794 if (state->has_nicam)
795 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
797 if (state->has_i2s_conf)
798 msp_write_dem(client, 0x40, state->i2s_mode);
801 msp3400c_set_audmode(client);
802 state->scan_in_progress = 0;
803 msp_set_audio(client);
805 /* monitor tv audio mode, the first time don't wait
806 so long to get a quick stereo/bilingual result */
808 while (state->watch_stereo) {
809 if (msp_sleep(state, count ? 1000 : 5000))
813 watch_stereo(client);
816 v4l_dbg(1, msp_debug, client, "thread: exit\n");
820 /* ----------------------------------------------------------------------- */
822 /* msp34xxG + (autoselect no-thread)
823 * this one uses both automatic standard detection and automatic sound
824 * select which are available in the newer G versions
825 * struct msp: only norm, acb and source are really used in this mode
828 static int msp34xxg_modus(struct i2c_client *client)
830 struct msp_state *state = i2c_get_clientdata(client);
833 v4l_dbg(1, msp_debug, client, "selected radio modus\n");
837 if (state->v4l2_std & V4L2_STD_PAL) {
838 v4l_dbg(1, msp_debug, client, "selected PAL modus\n");
841 if (state->v4l2_std == V4L2_STD_NTSC_M_JP) {
842 v4l_dbg(1, msp_debug, client, "selected M (EIA-J) modus\n");
845 if (state->v4l2_std == V4L2_STD_NTSC_M_KR) {
846 v4l_dbg(1, msp_debug, client, "selected M (A2) modus\n");
849 if (state->v4l2_std & V4L2_STD_MN) {
850 v4l_dbg(1, msp_debug, client, "selected M (BTSC) modus\n");
853 if (state->v4l2_std & V4L2_STD_SECAM) {
854 v4l_dbg(1, msp_debug, client, "selected SECAM modus\n");
860 static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in)
862 struct msp_state *state = i2c_get_clientdata(client);
865 switch (state->audmode) {
866 case V4L2_TUNER_MODE_MONO:
867 source = 0; /* mono only */
870 case V4L2_TUNER_MODE_LANG2:
871 source = 4; /* stereo or B */
874 case V4L2_TUNER_MODE_LANG1_LANG2:
875 source = 1; /* stereo or A|B */
878 case V4L2_TUNER_MODE_LANG1:
879 source = 3; /* stereo or A */
882 case V4L2_TUNER_MODE_STEREO:
884 source = 3; /* stereo or A */
889 if (in == MSP_DSP_IN_TUNER)
890 source = (source << 8) | 0x20;
891 /* the msp34x2g puts the MAIN_AVC, MAIN and AUX sources in 12, 13, 14
892 instead of 11, 12, 13. So we add one for that msp version. */
893 else if (in >= MSP_DSP_IN_MAIN_AVC && state->has_dolby_pro_logic)
894 source = ((in + 1) << 8) | matrix;
896 source = (in << 8) | matrix;
898 v4l_dbg(1, msp_debug, client,
899 "set source to %d (0x%x) for output %02x\n", in, source, reg);
900 msp_write_dsp(client, reg, source);
903 static void msp34xxg_set_sources(struct i2c_client *client)
905 struct msp_state *state = i2c_get_clientdata(client);
906 u32 in = state->routing.input;
908 msp34xxg_set_source(client, 0x0008, (in >> 4) & 0xf);
909 /* quasi-peak detector is set to same input as the loudspeaker (MAIN) */
910 msp34xxg_set_source(client, 0x000c, (in >> 4) & 0xf);
911 msp34xxg_set_source(client, 0x0009, (in >> 8) & 0xf);
912 msp34xxg_set_source(client, 0x000a, (in >> 12) & 0xf);
913 if (state->has_scart2_out)
914 msp34xxg_set_source(client, 0x0041, (in >> 16) & 0xf);
915 msp34xxg_set_source(client, 0x000b, (in >> 20) & 0xf);
918 /* (re-)initialize the msp34xxg */
919 static void msp34xxg_reset(struct i2c_client *client)
921 struct msp_state *state = i2c_get_clientdata(client);
922 int tuner = (state->routing.input >> 3) & 1;
925 /* initialize std to 1 (autodetect) to signal that no standard is
931 if (state->has_i2s_conf)
932 msp_write_dem(client, 0x40, state->i2s_mode);
934 /* step-by-step initialisation, as described in the manual */
935 modus = msp34xxg_modus(client);
936 modus |= tuner ? 0x100 : 0;
937 msp_write_dem(client, 0x30, modus);
939 /* write the dsps that may have an influence on
940 standard/audio autodetection right now */
941 msp34xxg_set_sources(client);
943 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
944 msp_write_dsp(client, 0x0e, 0x3000); /* FM */
945 if (state->has_nicam)
946 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
948 /* set identification threshold. Personally, I
949 * I set it to a higher value than the default
950 * of 0x190 to ignore noisy stereo signals.
951 * this needs tuning. (recommended range 0x00a0-0x03c0)
952 * 0x7f0 = forced mono mode
954 * a2 threshold for stereo/bilingual.
955 * Note: this register is part of the Manual/Compatibility mode.
956 * It is supported by all 'G'-family chips.
958 msp_write_dem(client, 0x22, msp_stereo_thresh);
961 int msp34xxg_thread(void *data)
963 struct i2c_client *client = data;
964 struct msp_state *state = i2c_get_clientdata(client);
967 v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n");
970 v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n");
971 msp_sleep(state, -1);
972 v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n");
975 v4l_dbg(1, msp_debug, client, "thread: restart scan\n");
977 if (kthread_should_stop())
980 if (state->mode == MSP_MODE_EXTERN) {
981 /* no carrier scan needed, just unmute */
982 v4l_dbg(1, msp_debug, client,
983 "thread: no carrier scan\n");
984 state->scan_in_progress = 0;
985 msp_set_audio(client);
990 msp34xxg_reset(client);
991 state->std = state->radio ? 0x40 :
992 (state->force_btsc && msp_standard == 1) ? 32 : msp_standard;
993 msp_write_dem(client, 0x20, state->std);
994 /* start autodetect */
998 /* watch autodetect */
999 v4l_dbg(1, msp_debug, client,
1000 "started autodetect, waiting for result\n");
1001 for (i = 0; i < 10; i++) {
1002 if (msp_sleep(state, 100))
1006 val = msp_read_dem(client, 0x7e);
1011 v4l_dbg(2, msp_debug, client,
1012 "detection still in progress\n");
1014 if (state->std == 1) {
1015 v4l_dbg(1, msp_debug, client,
1016 "detection still in progress after 10 tries. giving up.\n");
1021 v4l_dbg(1, msp_debug, client,
1022 "detected standard: %s (0x%04x)\n",
1023 msp_standard_std_name(state->std), state->std);
1025 if (state->std == 9) {
1027 msp_write_dsp(client, 0x0e, 0x7c00);
1030 /* unmute: dispatch sound to scart output, set scart volume */
1031 msp_set_audio(client);
1034 if (msp_write_dsp(client, 0x13, state->acb))
1037 /* the periodic stereo/SAP check is only relevant for
1038 the 0x20 standard (BTSC) */
1039 if (state->std != 0x20)
1042 state->watch_stereo = 1;
1044 /* monitor tv audio mode, the first time don't wait
1045 in order to get a quick stereo/SAP update */
1046 watch_stereo(client);
1047 while (state->watch_stereo) {
1048 watch_stereo(client);
1049 if (msp_sleep(state, 5000))
1053 v4l_dbg(1, msp_debug, client, "thread: exit\n");
1057 static int msp34xxg_detect_stereo(struct i2c_client *client)
1059 struct msp_state *state = i2c_get_clientdata(client);
1060 int status = msp_read_dem(client, 0x0200);
1061 int is_bilingual = status & 0x100;
1062 int is_stereo = status & 0x40;
1063 int oldrx = state->rxsubchans;
1065 if (state->mode == MSP_MODE_EXTERN)
1068 state->rxsubchans = 0;
1070 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
1072 state->rxsubchans = V4L2_TUNER_SUB_MONO;
1074 if (state->std == 0x20)
1075 state->rxsubchans |= V4L2_TUNER_SUB_SAP;
1078 V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1080 v4l_dbg(1, msp_debug, client,
1081 "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
1082 status, is_stereo, is_bilingual, state->rxsubchans);
1083 return (oldrx != state->rxsubchans);
1086 static void msp34xxg_set_audmode(struct i2c_client *client)
1088 struct msp_state *state = i2c_get_clientdata(client);
1090 if (state->std == 0x20) {
1091 if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) &&
1092 (state->audmode == V4L2_TUNER_MODE_LANG1_LANG2 ||
1093 state->audmode == V4L2_TUNER_MODE_LANG2)) {
1094 msp_write_dem(client, 0x20, 0x21);
1096 msp_write_dem(client, 0x20, 0x20);
1100 msp34xxg_set_sources(client);
1103 void msp_set_audmode(struct i2c_client *client)
1105 struct msp_state *state = i2c_get_clientdata(client);
1107 switch (state->opmode) {
1109 case OPMODE_AUTODETECT:
1110 msp3400c_set_audmode(client);
1112 case OPMODE_AUTOSELECT:
1113 msp34xxg_set_audmode(client);
1118 int msp_detect_stereo(struct i2c_client *client)
1120 struct msp_state *state = i2c_get_clientdata(client);
1122 switch (state->opmode) {
1124 case OPMODE_AUTODETECT:
1125 return msp3400c_detect_stereo(client);
1126 case OPMODE_AUTOSELECT:
1127 return msp34xxg_detect_stereo(client);