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 02110-1301, USA.
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"
34 /* this one uses the automatic sound standard detection of newer msp34xx
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 */
65 static struct msp3400c_init_data_dem {
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
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
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
118 struct msp3400c_carrier_detect {
123 static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = {
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" }
131 static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = {
133 { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" },
134 { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" }
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" },
147 /* ------------------------------------------------------------------------ */
149 const char *msp_standard_std_name(int std)
153 for (i = 0; msp_stdlist[i].name != NULL; i++)
154 if (msp_stdlist[i].retval == std)
155 return msp_stdlist[i].name;
159 static void msp_set_source(struct i2c_client *client, u16 src)
161 struct msp_state *state = i2c_get_clientdata(client);
164 msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */
165 msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */
167 msp_write_dsp(client, 0x0008, src);
168 msp_write_dsp(client, 0x0009, src);
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_scart23_in_scart2_out)
174 msp_write_dsp(client, 0x0041, src);
177 void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2)
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 */
186 void msp3400c_set_mode(struct i2c_client *client, int mode)
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;
193 v4l_dbg(1, msp_debug, client, "set_mode: %d\n", mode);
195 state->rxsubchans = V4L2_TUNER_SUB_MONO;
197 msp_write_dem(client, 0x00bb, data->ad_cv | (tuner ? 0x100 : 0));
199 for (i = 5; i >= 0; i--) /* fir 1 */
200 msp_write_dem(client, 0x0001, data->fir1[i]);
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]);
208 msp_write_dem(client, 0x0083, data->mode_reg);
210 msp3400c_set_carrier(client, data->cdo1, data->cdo2);
212 msp_set_source(client, data->dsp_src);
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);
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)
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;
233 if (state->opmode == OPMODE_AUTOSELECT) {
234 /* this method would break everything, let's make sure
237 v4l_dbg(1, msp_debug, client,
238 "set_audmode called with mode=%d instead of set_source (ignored)\n",
243 /* If no second language is available, switch to the first language */
244 if ((audmode == V4L2_TUNER_MODE_LANG2 ||
245 audmode == V4L2_TUNER_MODE_LANG1_LANG2) &&
246 !(state->rxsubchans & V4L2_TUNER_SUB_LANG2))
247 audmode = V4L2_TUNER_MODE_LANG1;
248 /* switch to stereo for stereo transmission, otherwise
249 keep first language */
250 if (audmode == V4L2_TUNER_MODE_LANG1 &&
251 (state->rxsubchans & V4L2_TUNER_SUB_STEREO))
252 audmode = V4L2_TUNER_MODE_STEREO;
254 /* switch demodulator */
255 switch (state->mode) {
256 case MSP_MODE_FM_TERRA:
257 v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr);
259 case V4L2_TUNER_MODE_STEREO:
260 msp_write_dsp(client, 0x000e, 0x3001);
262 case V4L2_TUNER_MODE_MONO:
263 case V4L2_TUNER_MODE_LANG1:
264 case V4L2_TUNER_MODE_LANG2:
265 case V4L2_TUNER_MODE_LANG1_LANG2:
266 msp_write_dsp(client, 0x000e, 0x3000);
270 case MSP_MODE_FM_SAT:
271 v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr);
273 case V4L2_TUNER_MODE_MONO:
274 msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
276 case V4L2_TUNER_MODE_STEREO:
277 case V4L2_TUNER_MODE_LANG1_LANG2:
278 msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
280 case V4L2_TUNER_MODE_LANG1:
281 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
283 case V4L2_TUNER_MODE_LANG2:
284 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
288 case MSP_MODE_FM_NICAM1:
289 case MSP_MODE_FM_NICAM2:
290 case MSP_MODE_AM_NICAM:
291 v4l_dbg(1, msp_debug, client, "NICAM set_audmode: %s\n",modestr);
293 src = 0x0100; /* NICAM */
296 v4l_dbg(1, msp_debug, client, "BTSC set_audmode: %s\n",modestr);
298 case MSP_MODE_EXTERN:
299 v4l_dbg(1, msp_debug, client, "extern set_audmode: %s\n",modestr);
300 src = 0x0200; /* SCART */
302 case MSP_MODE_FM_RADIO:
303 v4l_dbg(1, msp_debug, client, "FM-Radio set_audmode: %s\n",modestr);
306 v4l_dbg(1, msp_debug, client, "mono set_audmode\n");
312 case V4L2_TUNER_MODE_STEREO:
313 case V4L2_TUNER_MODE_LANG1_LANG2:
316 case V4L2_TUNER_MODE_MONO:
317 if (state->mode == MSP_MODE_AM_NICAM) {
318 v4l_dbg(1, msp_debug, client, "switching to AM mono\n");
319 /* AM mono decoding is handled by tuner, not MSP chip */
320 /* SCART switching control register */
321 msp_set_scart(client, SCART_MONO, 0);
325 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
328 case V4L2_TUNER_MODE_LANG1:
330 case V4L2_TUNER_MODE_LANG2:
334 v4l_dbg(1, msp_debug, client, "set_audmode final source/matrix = 0x%x\n", src);
336 msp_set_source(client, src);
339 static void msp3400c_print_mode(struct i2c_client *client)
341 struct msp_state *state = i2c_get_clientdata(client);
343 if (state->main == state->second) {
344 v4l_dbg(1, msp_debug, client, "mono sound carrier: %d.%03d MHz\n",
345 state->main / 910000, (state->main / 910) % 1000);
347 v4l_dbg(1, msp_debug, client, "main sound carrier: %d.%03d MHz\n",
348 state->main / 910000, (state->main / 910) % 1000);
350 if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2)
351 v4l_dbg(1, msp_debug, client, "NICAM/FM carrier : %d.%03d MHz\n",
352 state->second / 910000, (state->second/910) % 1000);
353 if (state->mode == MSP_MODE_AM_NICAM)
354 v4l_dbg(1, msp_debug, client, "NICAM/AM carrier : %d.%03d MHz\n",
355 state->second / 910000, (state->second / 910) % 1000);
356 if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) {
357 v4l_dbg(1, msp_debug, client, "FM-stereo carrier : %d.%03d MHz\n",
358 state->second / 910000, (state->second / 910) % 1000);
362 /* ----------------------------------------------------------------------- */
364 static int msp3400c_detect_stereo(struct i2c_client *client)
366 struct msp_state *state = i2c_get_clientdata(client);
368 int rxsubchans = state->rxsubchans;
369 int newnicam = state->nicam_on;
372 switch (state->mode) {
373 case MSP_MODE_FM_TERRA:
374 val = msp_read_dsp(client, 0x18);
377 v4l_dbg(2, msp_debug, client, "stereo detect register: %d\n", val);
379 rxsubchans = V4L2_TUNER_SUB_STEREO;
380 } else if (val < -4096) {
381 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
383 rxsubchans = V4L2_TUNER_SUB_MONO;
387 case MSP_MODE_FM_NICAM1:
388 case MSP_MODE_FM_NICAM2:
389 case MSP_MODE_AM_NICAM:
390 val = msp_read_dem(client, 0x23);
391 v4l_dbg(2, msp_debug, client, "nicam sync=%d, mode=%d\n",
392 val & 1, (val & 0x1e) >> 1);
396 switch ((val & 0x1e) >> 1) {
399 rxsubchans = V4L2_TUNER_SUB_STEREO;
403 rxsubchans = V4L2_TUNER_SUB_MONO;
407 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
410 rxsubchans = V4L2_TUNER_SUB_MONO;
416 rxsubchans = V4L2_TUNER_SUB_MONO;
420 if (rxsubchans != state->rxsubchans) {
422 v4l_dbg(1, msp_debug, client, "watch: rxsubchans %02x => %02x\n",
423 state->rxsubchans, rxsubchans);
424 state->rxsubchans = rxsubchans;
426 if (newnicam != state->nicam_on) {
428 v4l_dbg(1, msp_debug, client, "watch: nicam %d => %d\n",
429 state->nicam_on, newnicam);
430 state->nicam_on = newnicam;
436 * A kernel thread for msp3400 control -- we don't want to block the
437 * in the ioctl while doing the sound carrier & stereo detect
439 /* stereo/multilang monitoring */
440 static void watch_stereo(struct i2c_client *client)
442 struct msp_state *state = i2c_get_clientdata(client);
444 if (msp_detect_stereo(client)) {
445 msp_set_audmode(client);
449 state->watch_stereo = 0;
452 int msp3400c_thread(void *data)
454 struct i2c_client *client = data;
455 struct msp_state *state = i2c_get_clientdata(client);
456 struct msp3400c_carrier_detect *cd;
457 int count, max1, max2, val1, val2, val, this;
460 v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n");
462 v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n");
463 msp_sleep(state, -1);
464 v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n");
467 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
469 if (kthread_should_stop())
472 if (state->radio || MSP_MODE_EXTERN == state->mode) {
473 /* no carrier scan, just unmute */
474 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n");
475 msp_set_audio(client);
480 msp_set_mute(client);
481 msp3400c_set_mode(client, MSP_MODE_AM_DETECT);
484 state->watch_stereo = 0;
487 /* some time for the tuner to sync */
488 if (msp_sleep(state, 200))
491 /* carrier detect pass #1 -- main carrier */
492 cd = msp3400c_carrier_detect_main;
493 count = ARRAY_SIZE(msp3400c_carrier_detect_main);
495 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
496 /* autodetect doesn't work well with AM ... */
499 v4l_dbg(1, msp_debug, client, "AM sound override\n");
502 for (this = 0; this < count; this++) {
503 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
504 if (msp_sleep(state,100))
506 val = msp_read_dsp(client, 0x1b);
510 val1 = val, max1 = this;
511 v4l_dbg(1, msp_debug, client, "carrier1 val: %5d / %s\n", val,cd[this].name);
514 /* carrier detect pass #2 -- second (stereo) carrier */
517 cd = msp3400c_carrier_detect_55;
518 count = ARRAY_SIZE(msp3400c_carrier_detect_55);
521 cd = msp3400c_carrier_detect_65;
522 count = ARRAY_SIZE(msp3400c_carrier_detect_65);
532 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
533 /* autodetect doesn't work well with AM ... */
538 for (this = 0; this < count; this++) {
539 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
540 if (msp_sleep(state,100))
542 val = msp_read_dsp(client, 0x1b);
546 val2 = val, max2 = this;
547 v4l_dbg(1, msp_debug, client, "carrier2 val: %5d / %s\n", val,cd[this].name);
550 /* program the msp3400 according to the results */
551 state->main = msp3400c_carrier_detect_main[max1].cdo;
556 state->second = msp3400c_carrier_detect_55[max2].cdo;
557 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
558 state->watch_stereo = 1;
559 } else if (max2 == 1 && state->has_nicam) {
561 state->second = msp3400c_carrier_detect_55[max2].cdo;
562 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
563 msp3400c_set_carrier(client, state->second, state->main);
565 state->watch_stereo = 1;
572 state->second = MSP_CARRIER(6.552);
573 msp3400c_set_mode(client, MSP_MODE_FM_NICAM2);
574 msp3400c_set_carrier(client, state->second, state->main);
576 state->watch_stereo = 1;
579 if (max2 == 1 || max2 == 2) {
581 state->second = msp3400c_carrier_detect_65[max2].cdo;
582 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
583 state->watch_stereo = 1;
584 } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) {
585 /* L NICAM or AM-mono */
586 state->second = msp3400c_carrier_detect_65[max2].cdo;
587 msp3400c_set_mode(client, MSP_MODE_AM_NICAM);
588 msp3400c_set_carrier(client, state->second, state->main);
589 state->watch_stereo = 1;
590 } else if (max2 == 0 && state->has_nicam) {
592 state->second = msp3400c_carrier_detect_65[max2].cdo;
593 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
594 msp3400c_set_carrier(client, state->second, state->main);
596 state->watch_stereo = 1;
604 state->second = msp3400c_carrier_detect_main[max1].cdo;
605 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
606 msp3400c_set_carrier(client, state->second, state->main);
607 state->rxsubchans = V4L2_TUNER_SUB_MONO;
612 msp_set_audio(client);
613 msp3400c_set_audmode(client);
616 msp3400c_print_mode(client);
618 /* monitor tv audio mode, the first time don't wait
619 so long to get a quick stereo/bilingual result */
620 if (msp_sleep(state, 1000))
622 while (state->watch_stereo) {
623 watch_stereo(client);
624 if (msp_sleep(state, 5000))
628 v4l_dbg(1, msp_debug, client, "thread: exit\n");
633 int msp3410d_thread(void *data)
635 struct i2c_client *client = data;
636 struct msp_state *state = i2c_get_clientdata(client);
639 v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n");
642 v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n");
644 v4l_dbg(2, msp_debug, client, "msp3410 thread: wakeup\n");
647 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
649 if (kthread_should_stop())
652 if (state->mode == MSP_MODE_EXTERN) {
653 /* no carrier scan needed, just unmute */
654 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n");
655 msp_set_audio(client);
659 /* put into sane state (and mute) */
662 /* some time for the tuner to sync */
663 if (msp_sleep(state,200))
666 /* start autodetect. Note: autodetect is not supported for
667 NTSC-M and radio, hence we force the standard in those cases. */
671 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1;
672 state->watch_stereo = 0;
676 v4l_dbg(2, msp_debug, client, "setting standard: %s (0x%04x)\n",
677 msp_standard_std_name(std), std);
680 /* programmed some specific mode */
683 /* triggered autodetect */
684 msp_write_dem(client, 0x20, std);
686 if (msp_sleep(state, 100))
690 val = msp_read_dem(client, 0x7e);
693 v4l_dbg(2, msp_debug, client, "detection still in progress\n");
696 for (i = 0; msp_stdlist[i].name != NULL; i++)
697 if (msp_stdlist[i].retval == val)
699 v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n",
700 msp_standard_std_name(val), val);
701 state->main = msp_stdlist[i].main;
702 state->second = msp_stdlist[i].second;
705 if (msp_amsound && !state->radio && (state->v4l2_std & V4L2_STD_SECAM) &&
707 /* autodetection has failed, let backup */
708 v4l_dbg(1, msp_debug, client, "autodetection failed,"
709 " switching to backup standard: %s (0x%04x)\n",
710 msp_stdlist[8].name ? msp_stdlist[8].name : "unknown",val);
711 state->std = val = 0x0009;
712 msp_write_dem(client, 0x20, val);
717 case 0x0008: /* B/G NICAM */
718 case 0x000a: /* I NICAM */
719 case 0x000b: /* D/K NICAM */
721 state->mode = MSP_MODE_FM_NICAM2;
723 state->mode = MSP_MODE_FM_NICAM1;
724 /* just turn on stereo */
725 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
727 state->watch_stereo = 1;
730 state->mode = MSP_MODE_AM_NICAM;
731 state->rxsubchans = V4L2_TUNER_SUB_MONO;
733 state->watch_stereo = 1;
735 case 0x0020: /* BTSC */
736 /* The pre-'G' models only have BTSC-mono */
737 state->mode = MSP_MODE_BTSC;
738 state->rxsubchans = V4L2_TUNER_SUB_MONO;
740 case 0x0040: /* FM radio */
741 state->mode = MSP_MODE_FM_RADIO;
742 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
743 /* not needed in theory if we have radio, but
744 short programming enables carrier mute */
745 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
746 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
748 /* scart routing (this doesn't belong here I think) */
749 msp_set_scart(client,SCART_IN2,0);
755 state->mode = MSP_MODE_FM_TERRA;
756 state->rxsubchans = V4L2_TUNER_SUB_MONO;
757 state->watch_stereo = 1;
761 /* set various prescales */
762 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
763 msp_write_dsp(client, 0x0e, 0x3000); /* FM */
764 if (state->has_nicam)
765 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
767 if (state->has_i2s_conf)
768 msp_write_dem(client, 0x40, state->i2s_mode);
770 /* unmute, restore misc registers */
771 msp_set_audio(client);
773 msp_write_dsp(client, 0x13, state->acb);
774 msp3400c_set_audmode(client);
776 /* monitor tv audio mode, the first time don't wait
777 so long to get a quick stereo/bilingual result */
778 if (msp_sleep(state, 1000))
780 while (state->watch_stereo) {
781 watch_stereo(client);
782 if (msp_sleep(state, 5000))
786 v4l_dbg(1, msp_debug, client, "thread: exit\n");
790 /* ----------------------------------------------------------------------- */
792 /* msp34xxG + (autoselect no-thread)
793 * this one uses both automatic standard detection and automatic sound
794 * select which are available in the newer G versions
795 * struct msp: only norm, acb and source are really used in this mode
798 static int msp34xxg_modus(struct i2c_client *client)
800 struct msp_state *state = i2c_get_clientdata(client);
803 v4l_dbg(1, msp_debug, client, "selected radio modus\n");
807 if (state->v4l2_std & V4L2_STD_PAL) {
808 v4l_dbg(1, msp_debug, client, "selected PAL modus\n");
811 if (state->v4l2_std == V4L2_STD_NTSC_M_JP) {
812 v4l_dbg(1, msp_debug, client, "selected M (EIA-J) modus\n");
815 if (state->v4l2_std == V4L2_STD_NTSC_M_KR) {
816 v4l_dbg(1, msp_debug, client, "selected M (A2) modus\n");
819 if (state->v4l2_std & V4L2_STD_MN) {
820 v4l_dbg(1, msp_debug, client, "selected M (BTSC) modus\n");
823 if (state->v4l2_std & V4L2_STD_SECAM) {
824 v4l_dbg(1, msp_debug, client, "selected SECAM modus\n");
830 static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in)
832 struct msp_state *state = i2c_get_clientdata(client);
835 switch (state->audmode) {
836 case V4L2_TUNER_MODE_MONO:
837 source = 0; /* mono only */
840 case V4L2_TUNER_MODE_LANG1:
841 source = 3; /* stereo or A */
844 case V4L2_TUNER_MODE_LANG2:
845 source = 4; /* stereo or B */
848 case V4L2_TUNER_MODE_STEREO:
849 case V4L2_TUNER_MODE_LANG1_LANG2:
851 source = 1; /* stereo or A|B */
856 if (in == MSP_DSP_OUT_TUNER)
857 source = (source << 8) | 0x20;
858 /* the msp34x2g puts the MAIN_AVC, MAIN and AUX sources in 12, 13, 14
859 instead of 11, 12, 13. So we add one for that msp version. */
860 else if (in >= MSP_DSP_OUT_MAIN_AVC && state->has_dolby_pro_logic)
861 source = ((in + 1) << 8) | matrix;
863 source = (in << 8) | matrix;
865 v4l_dbg(1, msp_debug, client, "set source to %d (0x%x) for output %02x\n",
867 msp_write_dsp(client, reg, source);
870 static void msp34xxg_set_sources(struct i2c_client *client)
872 struct msp_state *state = i2c_get_clientdata(client);
873 u32 in = state->routing.input;
875 msp34xxg_set_source(client, 0x0008, (in >> 4) & 0xf);
876 /* quasi-peak detector is set to same input as the loudspeaker (MAIN) */
877 msp34xxg_set_source(client, 0x000c, (in >> 4) & 0xf);
878 msp34xxg_set_source(client, 0x0009, (in >> 8) & 0xf);
879 msp34xxg_set_source(client, 0x000a, (in >> 12) & 0xf);
880 if (state->has_scart23_in_scart2_out)
881 msp34xxg_set_source(client, 0x0041, (in >> 16) & 0xf);
882 msp34xxg_set_source(client, 0x000b, (in >> 20) & 0xf);
885 /* (re-)initialize the msp34xxg */
886 static void msp34xxg_reset(struct i2c_client *client)
888 struct msp_state *state = i2c_get_clientdata(client);
889 int tuner = (state->routing.input >> 3) & 1;
892 /* initialize std to 1 (autodetect) to signal that no standard is
898 /* make sure that input/output is muted (paranoid mode) */
899 /* ACB, mute DSP input, mute SCART 1 */
900 msp_write_dsp(client, 0x13, 0x0f20);
902 if (state->has_i2s_conf)
903 msp_write_dem(client, 0x40, state->i2s_mode);
905 /* step-by-step initialisation, as described in the manual */
906 modus = msp34xxg_modus(client);
907 modus |= tuner ? 0x100 : 0;
908 msp_write_dem(client, 0x30, modus);
910 /* write the dsps that may have an influence on
911 standard/audio autodetection right now */
912 msp34xxg_set_sources(client);
914 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
915 msp_write_dsp(client, 0x0e, 0x3000); /* FM */
916 if (state->has_nicam)
917 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
919 /* set identification threshold. Personally, I
920 * I set it to a higher value than the default
921 * of 0x190 to ignore noisy stereo signals.
922 * this needs tuning. (recommended range 0x00a0-0x03c0)
923 * 0x7f0 = forced mono mode
925 * a2 threshold for stereo/bilingual.
926 * Note: this register is part of the Manual/Compatibility mode.
927 * It is supported by all 'G'-family chips.
929 msp_write_dem(client, 0x22, msp_stereo_thresh);
932 int msp34xxg_thread(void *data)
934 struct i2c_client *client = data;
935 struct msp_state *state = i2c_get_clientdata(client);
938 v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n");
941 v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n");
942 msp_sleep(state, -1);
943 v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n");
946 v4l_dbg(1, msp_debug, client, "thread: restart scan\n");
948 if (kthread_should_stop())
952 msp34xxg_reset(client);
953 state->std = state->radio ? 0x40 : msp_standard;
956 /* start autodetect */
957 msp_write_dem(client, 0x20, state->std);
959 /* watch autodetect */
960 v4l_dbg(1, msp_debug, client, "started autodetect, waiting for result\n");
961 for (i = 0; i < 10; i++) {
962 if (msp_sleep(state, 100))
966 val = msp_read_dem(client, 0x7e);
971 v4l_dbg(2, msp_debug, client, "detection still in progress\n");
973 if (state->std == 1) {
974 v4l_dbg(1, msp_debug, client, "detection still in progress after 10 tries. giving up.\n");
979 v4l_dbg(1, msp_debug, client, "detected standard: %s (0x%04x)\n",
980 msp_standard_std_name(state->std), state->std);
982 /* unmute: dispatch sound to scart output, set scart volume */
983 msp_set_audio(client);
986 if (msp_write_dsp(client, 0x13, state->acb))
989 /* the periodic stereo/SAP check is only relevant for
990 the 0x20 standard (BTSC) */
991 if (state->std != 0x20)
994 state->watch_stereo = 1;
996 /* monitor tv audio mode, the first time don't wait
997 in order to get a quick stereo/SAP update */
998 watch_stereo(client);
999 while (state->watch_stereo) {
1000 watch_stereo(client);
1001 if (msp_sleep(state, 5000))
1005 v4l_dbg(1, msp_debug, client, "thread: exit\n");
1009 static int msp34xxg_detect_stereo(struct i2c_client *client)
1011 struct msp_state *state = i2c_get_clientdata(client);
1012 int status = msp_read_dem(client, 0x0200);
1013 int is_bilingual = status & 0x100;
1014 int is_stereo = status & 0x40;
1015 int oldrx = state->rxsubchans;
1017 state->rxsubchans = 0;
1019 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
1021 state->rxsubchans = V4L2_TUNER_SUB_MONO;
1023 if (state->std == 0x20)
1024 state->rxsubchans |= V4L2_TUNER_SUB_SAP;
1026 state->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1028 v4l_dbg(1, msp_debug, client, "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
1029 status, is_stereo, is_bilingual, state->rxsubchans);
1030 return (oldrx != state->rxsubchans);
1033 static void msp34xxg_set_audmode(struct i2c_client *client)
1035 struct msp_state *state = i2c_get_clientdata(client);
1037 if (state->std == 0x20) {
1038 if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) &&
1039 (state->audmode == V4L2_TUNER_MODE_STEREO ||
1040 state->audmode == V4L2_TUNER_MODE_LANG2)) {
1041 msp_write_dem(client, 0x20, 0x21);
1043 msp_write_dem(client, 0x20, 0x20);
1047 msp34xxg_set_sources(client);
1050 void msp_set_audmode(struct i2c_client *client)
1052 struct msp_state *state = i2c_get_clientdata(client);
1054 switch (state->opmode) {
1056 case OPMODE_AUTODETECT:
1057 msp3400c_set_audmode(client);
1059 case OPMODE_AUTOSELECT:
1060 msp34xxg_set_audmode(client);
1065 int msp_detect_stereo(struct i2c_client *client)
1067 struct msp_state *state = i2c_get_clientdata(client);
1069 switch (state->opmode) {
1071 case OPMODE_AUTODETECT:
1072 return msp3400c_detect_stereo(client);
1073 case OPMODE_AUTOSELECT:
1074 return msp34xxg_detect_stereo(client);