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 <linux/kthread.h>
30 #include <linux/suspend.h>
33 /* this one uses the automatic sound standard detection of newer msp34xx
40 { 0x0000, 0, 0, "could not detect sound standard" },
41 { 0x0001, 0, 0, "autodetect start" },
42 { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72 M Dual FM-Stereo" },
43 { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74 B/G Dual FM-Stereo" },
44 { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25 D/K1 Dual FM-Stereo" },
45 { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74 D/K2 Dual FM-Stereo" },
46 { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 D/K FM-Mono (HDEV3)" },
47 { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" },
48 { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" },
49 { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" },
50 { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" },
51 { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" },
52 { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" },
53 { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" },
54 { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" },
55 { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" },
56 { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" },
57 { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" },
58 { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" },
59 { -1, 0, 0, NULL }, /* EOF */
62 static struct msp3400c_init_data_dem {
71 } msp3400c_init_data[] = {
72 { /* AM (for carrier detect / msp3400) */
73 {75, 19, 36, 35, 39, 40},
74 {75, 19, 36, 35, 39, 40},
75 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
76 0x00d0, 0x0500, 0x0020, 0x3000
77 },{ /* AM (for carrier detect / msp3410) */
78 {-1, -1, -8, 2, 59, 126},
79 {-1, -1, -8, 2, 59, 126},
80 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
81 0x00d0, 0x0100, 0x0020, 0x3000
83 {-8, -8, 4, 6, 78, 107},
84 {-8, -8, 4, 6, 78, 107},
85 MSP_CARRIER(10.7), MSP_CARRIER(10.7),
86 0x00d0, 0x0480, 0x0020, 0x3000
87 },{ /* Terrestial FM-mono + FM-stereo */
88 {3, 18, 27, 48, 66, 72},
89 {3, 18, 27, 48, 66, 72},
90 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
91 0x00d0, 0x0480, 0x0030, 0x3000
93 { 1, 9, 14, 24, 33, 37},
94 { 3, 18, 27, 48, 66, 72},
95 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
96 0x00c6, 0x0480, 0x0000, 0x3000
97 },{ /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */
98 {-2, -8, -10, 10, 50, 86},
99 {3, 18, 27, 48, 66, 72},
100 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
101 0x00d0, 0x0040, 0x0120, 0x3000
102 },{ /* NICAM/FM -- I (6.0/6.552) */
103 {2, 4, -6, -4, 40, 94},
104 {3, 18, 27, 48, 66, 72},
105 MSP_CARRIER(6.0), MSP_CARRIER(6.0),
106 0x00d0, 0x0040, 0x0120, 0x3000
107 },{ /* NICAM/AM -- L (6.5/5.85) */
108 {-2, -8, -10, 10, 50, 86},
109 {-4, -12, -9, 23, 79, 126},
110 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
111 0x00c6, 0x0140, 0x0120, 0x7c00
115 struct msp3400c_carrier_detect {
120 static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = {
122 { MSP_CARRIER(4.5), "4.5 NTSC" },
123 { MSP_CARRIER(5.5), "5.5 PAL B/G" },
124 { MSP_CARRIER(6.0), "6.0 PAL I" },
125 { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" }
128 static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = {
130 { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" },
131 { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" }
134 static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = {
135 /* PAL SAT / SECAM */
136 { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" },
137 { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" },
138 { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" },
139 { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" },
140 { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" },
141 { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" },
144 /* ------------------------------------------------------------------------ */
146 const char *msp_standard_std_name(int std)
150 for (i = 0; msp_stdlist[i].name != NULL; i++)
151 if (msp_stdlist[i].retval == std)
152 return msp_stdlist[i].name;
156 static void msp_set_source(struct i2c_client *client, u16 src)
158 struct msp_state *state = i2c_get_clientdata(client);
161 msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */
162 msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */
164 msp_write_dsp(client, 0x0008, src);
165 msp_write_dsp(client, 0x0009, src);
167 msp_write_dsp(client, 0x000a, src);
168 msp_write_dsp(client, 0x000b, src);
169 msp_write_dsp(client, 0x000c, src);
170 if (state->has_scart23_in_scart2_out)
171 msp_write_dsp(client, 0x0041, src);
174 void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2)
176 msp_write_dem(client, 0x0093, cdo1 & 0xfff);
177 msp_write_dem(client, 0x009b, cdo1 >> 12);
178 msp_write_dem(client, 0x00a3, cdo2 & 0xfff);
179 msp_write_dem(client, 0x00ab, cdo2 >> 12);
180 msp_write_dem(client, 0x0056, 0); /* LOAD_REG_1/2 */
183 void msp3400c_set_mode(struct i2c_client *client, int mode)
185 struct msp_state *state = i2c_get_clientdata(client);
186 struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode];
189 v4l_dbg(1, msp_debug, client, "set_mode: %d\n", mode);
191 state->rxsubchans = V4L2_TUNER_SUB_MONO;
193 msp_write_dem(client, 0x00bb, data->ad_cv);
195 for (i = 5; i >= 0; i--) /* fir 1 */
196 msp_write_dem(client, 0x0001, data->fir1[i]);
198 msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */
199 msp_write_dem(client, 0x0005, 0x0040);
200 msp_write_dem(client, 0x0005, 0x0000);
201 for (i = 5; i >= 0; i--)
202 msp_write_dem(client, 0x0005, data->fir2[i]);
204 msp_write_dem(client, 0x0083, data->mode_reg);
206 msp3400c_set_carrier(client, data->cdo1, data->cdo2);
208 msp_set_source(client, data->dsp_src);
209 msp_write_dsp(client, 0x000e, data->dsp_matrix);
211 if (state->has_nicam) {
213 msp_write_dsp(client, 0x0010, 0x5a00); /* was: 0x3000 */
217 /* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP,
218 nor do they support stereo BTSC. */
219 static void msp3400c_set_audmode(struct i2c_client *client)
221 static char *strmode[] = { "mono", "stereo", "lang2", "lang1" };
222 struct msp_state *state = i2c_get_clientdata(client);
223 char *modestr = (state->audmode >= 0 && state->audmode < 4) ?
224 strmode[state->audmode] : "unknown";
225 int src = 0; /* channel source: FM/AM, nicam or SCART */
227 if (state->opmode == OPMODE_AUTOSELECT) {
228 /* this method would break everything, let's make sure
231 v4l_dbg(1, msp_debug, client,
232 "set_audmode called with mode=%d instead of set_source (ignored)\n",
237 /* switch demodulator */
238 switch (state->mode) {
239 case MSP_MODE_FM_TERRA:
240 v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr);
241 switch (state->audmode) {
242 case V4L2_TUNER_MODE_STEREO:
243 msp_write_dsp(client, 0x000e, 0x3001);
245 case V4L2_TUNER_MODE_MONO:
246 case V4L2_TUNER_MODE_LANG1:
247 case V4L2_TUNER_MODE_LANG2:
248 msp_write_dsp(client, 0x000e, 0x3000);
252 case MSP_MODE_FM_SAT:
253 v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr);
254 switch (state->audmode) {
255 case V4L2_TUNER_MODE_MONO:
256 msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
258 case V4L2_TUNER_MODE_STEREO:
259 msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
261 case V4L2_TUNER_MODE_LANG1:
262 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
264 case V4L2_TUNER_MODE_LANG2:
265 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
269 case MSP_MODE_FM_NICAM1:
270 case MSP_MODE_FM_NICAM2:
271 case MSP_MODE_AM_NICAM:
272 v4l_dbg(1, msp_debug, client, "NICAM set_audmode: %s\n",modestr);
273 msp3400c_set_carrier(client, state->second, state->main);
275 src = 0x0100; /* NICAM */
278 v4l_dbg(1, msp_debug, client, "BTSC set_audmode: %s\n",modestr);
280 case MSP_MODE_EXTERN:
281 v4l_dbg(1, msp_debug, client, "extern set_audmode: %s\n",modestr);
282 src = 0x0200; /* SCART */
284 case MSP_MODE_FM_RADIO:
285 v4l_dbg(1, msp_debug, client, "FM-Radio set_audmode: %s\n",modestr);
288 v4l_dbg(1, msp_debug, client, "mono set_audmode\n");
293 switch (state->audmode) {
294 case V4L2_TUNER_MODE_STEREO:
297 case V4L2_TUNER_MODE_MONO:
298 if (state->mode == MSP_MODE_AM_NICAM) {
299 v4l_dbg(1, msp_debug, client, "switching to AM mono\n");
300 /* AM mono decoding is handled by tuner, not MSP chip */
301 /* SCART switching control register */
302 msp_set_scart(client, SCART_MONO, 0);
306 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
309 case V4L2_TUNER_MODE_LANG1:
310 /* switch to stereo for stereo transmission, otherwise
311 keep first language */
312 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
315 case V4L2_TUNER_MODE_LANG2:
319 v4l_dbg(1, msp_debug, client, "set_audmode final source/matrix = 0x%x\n", src);
321 msp_set_source(client, src);
324 static void msp3400c_print_mode(struct i2c_client *client)
326 struct msp_state *state = i2c_get_clientdata(client);
328 if (state->main == state->second) {
329 v4l_dbg(1, msp_debug, client, "mono sound carrier: %d.%03d MHz\n",
330 state->main / 910000, (state->main / 910) % 1000);
332 v4l_dbg(1, msp_debug, client, "main sound carrier: %d.%03d MHz\n",
333 state->main / 910000, (state->main / 910) % 1000);
335 if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2)
336 v4l_dbg(1, msp_debug, client, "NICAM/FM carrier : %d.%03d MHz\n",
337 state->second / 910000, (state->second/910) % 1000);
338 if (state->mode == MSP_MODE_AM_NICAM)
339 v4l_dbg(1, msp_debug, client, "NICAM/AM carrier : %d.%03d MHz\n",
340 state->second / 910000, (state->second / 910) % 1000);
341 if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) {
342 v4l_dbg(1, msp_debug, client, "FM-stereo carrier : %d.%03d MHz\n",
343 state->second / 910000, (state->second / 910) % 1000);
347 /* ----------------------------------------------------------------------- */
349 static int msp3400c_detect_stereo(struct i2c_client *client)
351 struct msp_state *state = i2c_get_clientdata(client);
353 int rxsubchans = state->rxsubchans;
354 int newnicam = state->nicam_on;
357 switch (state->mode) {
358 case MSP_MODE_FM_TERRA:
359 val = msp_read_dsp(client, 0x18);
362 v4l_dbg(2, msp_debug, client, "stereo detect register: %d\n", val);
364 rxsubchans = V4L2_TUNER_SUB_STEREO;
365 } else if (val < -4096) {
366 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
368 rxsubchans = V4L2_TUNER_SUB_MONO;
372 case MSP_MODE_FM_NICAM1:
373 case MSP_MODE_FM_NICAM2:
374 case MSP_MODE_AM_NICAM:
375 val = msp_read_dem(client, 0x23);
376 v4l_dbg(2, msp_debug, client, "nicam sync=%d, mode=%d\n",
377 val & 1, (val & 0x1e) >> 1);
381 switch ((val & 0x1e) >> 1) {
384 rxsubchans = V4L2_TUNER_SUB_STEREO;
388 rxsubchans = V4L2_TUNER_SUB_MONO;
392 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
395 rxsubchans = V4L2_TUNER_SUB_MONO;
401 rxsubchans = V4L2_TUNER_SUB_MONO;
405 if (rxsubchans != state->rxsubchans) {
407 v4l_dbg(1, msp_debug, client, "watch: rxsubchans %02x => %02x\n",
408 state->rxsubchans, rxsubchans);
409 state->rxsubchans = rxsubchans;
411 if (newnicam != state->nicam_on) {
413 v4l_dbg(1, msp_debug, client, "watch: nicam %d => %d\n",
414 state->nicam_on, newnicam);
415 state->nicam_on = newnicam;
421 * A kernel thread for msp3400 control -- we don't want to block the
422 * in the ioctl while doing the sound carrier & stereo detect
424 /* stereo/multilang monitoring */
425 static void watch_stereo(struct i2c_client *client)
427 struct msp_state *state = i2c_get_clientdata(client);
429 if (msp3400c_detect_stereo(client)) {
430 msp3400c_set_audmode(client);
434 state->watch_stereo = 0;
437 int msp3400c_thread(void *data)
439 struct i2c_client *client = data;
440 struct msp_state *state = i2c_get_clientdata(client);
441 struct msp3400c_carrier_detect *cd;
442 int count, max1, max2, val1, val2, val, this;
445 v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n");
447 v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n");
448 msp_sleep(state, -1);
449 v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n");
452 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
454 if (kthread_should_stop())
457 if (state->radio || MSP_MODE_EXTERN == state->mode) {
458 /* no carrier scan, just unmute */
459 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n");
460 msp_set_audio(client);
465 msp_set_mute(client);
466 msp3400c_set_mode(client, MSP_MODE_AM_DETECT /* +1 */ );
469 state->watch_stereo = 0;
472 /* some time for the tuner to sync */
473 if (msp_sleep(state, 200))
476 /* carrier detect pass #1 -- main carrier */
477 cd = msp3400c_carrier_detect_main;
478 count = ARRAY_SIZE(msp3400c_carrier_detect_main);
480 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
481 /* autodetect doesn't work well with AM ... */
484 v4l_dbg(1, msp_debug, client, "AM sound override\n");
487 for (this = 0; this < count; this++) {
488 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
489 if (msp_sleep(state,100))
491 val = msp_read_dsp(client, 0x1b);
495 val1 = val, max1 = this;
496 v4l_dbg(1, msp_debug, client, "carrier1 val: %5d / %s\n", val,cd[this].name);
499 /* carrier detect pass #2 -- second (stereo) carrier */
502 cd = msp3400c_carrier_detect_55;
503 count = ARRAY_SIZE(msp3400c_carrier_detect_55);
506 cd = msp3400c_carrier_detect_65;
507 count = ARRAY_SIZE(msp3400c_carrier_detect_65);
517 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
518 /* autodetect doesn't work well with AM ... */
523 for (this = 0; this < count; this++) {
524 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
525 if (msp_sleep(state,100))
527 val = msp_read_dsp(client, 0x1b);
531 val2 = val, max2 = this;
532 v4l_dbg(1, msp_debug, client, "carrier2 val: %5d / %s\n", val,cd[this].name);
535 /* program the msp3400 according to the results */
536 state->main = msp3400c_carrier_detect_main[max1].cdo;
541 state->second = msp3400c_carrier_detect_55[max2].cdo;
542 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
543 state->watch_stereo = 1;
544 } else if (max2 == 1 && state->has_nicam) {
546 state->second = msp3400c_carrier_detect_55[max2].cdo;
547 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
548 msp3400c_set_carrier(client, state->second, state->main);
550 state->watch_stereo = 1;
557 state->second = MSP_CARRIER(6.552);
558 msp3400c_set_mode(client, MSP_MODE_FM_NICAM2);
559 msp3400c_set_carrier(client, state->second, state->main);
561 state->watch_stereo = 1;
564 if (max2 == 1 || max2 == 2) {
566 state->second = msp3400c_carrier_detect_65[max2].cdo;
567 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
568 state->watch_stereo = 1;
569 } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) {
570 /* L NICAM or AM-mono */
571 state->second = msp3400c_carrier_detect_65[max2].cdo;
572 msp3400c_set_mode(client, MSP_MODE_AM_NICAM);
573 msp3400c_set_carrier(client, state->second, state->main);
574 /* volume prescale for SCART (AM mono input) */
575 msp_write_dsp(client, 0x000d, 0x1900);
576 state->watch_stereo = 1;
577 } else if (max2 == 0 && state->has_nicam) {
579 state->second = msp3400c_carrier_detect_65[max2].cdo;
580 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
581 msp3400c_set_carrier(client, state->second, state->main);
583 state->watch_stereo = 1;
591 state->second = msp3400c_carrier_detect_main[max1].cdo;
592 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
593 msp3400c_set_carrier(client, state->second, state->main);
594 state->rxsubchans = V4L2_TUNER_SUB_MONO;
599 msp_set_audio(client);
600 msp3400c_set_audmode(client);
603 msp3400c_print_mode(client);
605 /* monitor tv audio mode, the first time don't wait
606 so long to get a quick stereo/bilingual result */
607 if (msp_sleep(state, 1000))
609 while (state->watch_stereo) {
610 if (msp_sleep(state, 5000))
612 watch_stereo(client);
615 v4l_dbg(1, msp_debug, client, "thread: exit\n");
620 int msp3410d_thread(void *data)
622 struct i2c_client *client = data;
623 struct msp_state *state = i2c_get_clientdata(client);
626 v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n");
629 v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n");
631 v4l_dbg(2, msp_debug, client, "msp3410 thread: wakeup\n");
634 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
636 if (kthread_should_stop())
639 if (state->mode == MSP_MODE_EXTERN) {
640 /* no carrier scan needed, just unmute */
641 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n");
642 msp_set_audio(client);
646 /* put into sane state (and mute) */
649 /* some time for the tuner to sync */
650 if (msp_sleep(state,200))
653 /* start autodetect */
657 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1;
658 state->watch_stereo = 0;
662 v4l_dbg(2, msp_debug, client, "setting standard: %s (0x%04x)\n",
663 msp_standard_std_name(std), std);
666 /* programmed some specific mode */
669 /* triggered autodetect */
670 msp_write_dem(client, 0x20, std);
672 if (msp_sleep(state, 100))
676 val = msp_read_dem(client, 0x7e);
679 v4l_dbg(2, msp_debug, client, "detection still in progress\n");
682 for (i = 0; msp_stdlist[i].name != NULL; i++)
683 if (msp_stdlist[i].retval == val)
685 v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n",
686 msp_standard_std_name(val), val);
687 state->main = msp_stdlist[i].main;
688 state->second = msp_stdlist[i].second;
691 if (msp_amsound && !state->radio && (state->v4l2_std & V4L2_STD_SECAM) &&
693 /* autodetection has failed, let backup */
694 v4l_dbg(1, msp_debug, client, "autodetection failed,"
695 " switching to backup standard: %s (0x%04x)\n",
696 msp_stdlist[8].name ? msp_stdlist[8].name : "unknown",val);
698 msp_write_dem(client, 0x20, val);
701 /* set various prescales */
702 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
703 msp_write_dsp(client, 0x0e, 0x2403); /* FM */
704 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
708 case 0x0008: /* B/G NICAM */
709 case 0x000a: /* I NICAM */
711 state->mode = MSP_MODE_FM_NICAM1;
713 state->mode = MSP_MODE_FM_NICAM2;
714 /* just turn on stereo */
715 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
717 state->watch_stereo = 1;
720 state->mode = MSP_MODE_AM_NICAM;
721 state->rxsubchans = V4L2_TUNER_SUB_MONO;
723 state->watch_stereo = 1;
725 case 0x0020: /* BTSC */
726 /* The pre-'G' models only have BTSC-mono */
727 state->mode = MSP_MODE_BTSC;
728 state->rxsubchans = V4L2_TUNER_SUB_MONO;
730 case 0x0040: /* FM radio */
731 state->mode = MSP_MODE_FM_RADIO;
732 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
733 /* not needed in theory if we have radio, but
734 short programming enables carrier mute */
735 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
736 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
738 /* scart routing (this doesn't belong here I think) */
739 msp_set_scart(client,SCART_IN2,0);
744 state->mode = MSP_MODE_FM_TERRA;
745 state->rxsubchans = V4L2_TUNER_SUB_MONO;
746 state->watch_stereo = 1;
750 /* unmute, restore misc registers */
751 msp_set_audio(client);
752 msp_write_dsp(client, 0x13, state->acb);
753 if (state->has_i2s_conf)
754 msp_write_dem(client, 0x40, state->i2s_mode);
756 msp3400c_set_audmode(client);
758 /* monitor tv audio mode, the first time don't wait
759 so long to get a quick stereo/bilingual result */
760 if (msp_sleep(state, 1000))
762 while (state->watch_stereo) {
763 watch_stereo(client);
764 if (msp_sleep(state, 5000))
768 v4l_dbg(1, msp_debug, client, "thread: exit\n");
772 /* ----------------------------------------------------------------------- */
774 /* msp34xxG + (autoselect no-thread) */
775 /* this one uses both automatic standard detection and automatic sound */
776 /* select which are available in the newer G versions */
777 /* struct msp: only norm, acb and source are really used in this mode */
779 /* set the same 'source' for the loudspeaker, scart and quasi-peak detector
780 * the value for source is the same as bit 15:8 of DSP registers 0x08,
781 * 0x0a and 0x0c: 0=mono, 1=stereo or A|B, 2=SCART, 3=stereo or A, 4=stereo or B
783 * this function replaces msp3400c_set_audmode
785 static void msp34xxg_set_source(struct i2c_client *client, int source)
787 struct msp_state *state = i2c_get_clientdata(client);
789 /* fix matrix mode to stereo and let the msp choose what
790 * to output according to 'source', as recommended
791 * for MONO (source==0) downmixing set bit[7:0] to 0x30
793 int value = (source & 0x07) << 8 | (source == 0 ? 0x30 : 0x20);
795 v4l_dbg(1, msp_debug, client, "set source to %d (0x%x)\n", source, value);
796 msp_set_source(client, value);
798 * set identification threshold. Personally, I
799 * I set it to a higher value that the default
800 * of 0x190 to ignore noisy stereo signals.
801 * this needs tuning. (recommended range 0x00a0-0x03c0)
802 * 0x7f0 = forced mono mode
804 /* a2 threshold for stereo/bilingual */
805 msp_write_dem(client, 0x22, msp_stereo_thresh);
806 state->source = source;
809 static int msp34xxg_modus(struct i2c_client *client)
811 struct msp_state *state = i2c_get_clientdata(client);
814 v4l_dbg(1, msp_debug, client, "selected radio modus\n");
818 if (state->v4l2_std & V4L2_STD_PAL) {
819 v4l_dbg(1, msp_debug, client, "selected PAL modus\n");
822 if (state->v4l2_std == V4L2_STD_NTSC_M_JP) {
823 v4l_dbg(1, msp_debug, client, "selected M (EIA-J) modus\n");
826 if (state->v4l2_std == V4L2_STD_NTSC_M_KR) {
827 v4l_dbg(1, msp_debug, client, "selected M (A2) modus\n");
830 if (state->v4l2_std & V4L2_STD_MN) {
831 v4l_dbg(1, msp_debug, client, "selected M (BTSC) modus\n");
834 if (state->v4l2_std & V4L2_STD_SECAM) {
835 v4l_dbg(1, msp_debug, client, "selected SECAM modus\n");
841 /* (re-)initialize the msp34xxg, according to the current norm in state->norm
842 * return 0 if it worked, -1 if it failed
844 static int msp34xxg_reset(struct i2c_client *client)
846 struct msp_state *state = i2c_get_clientdata(client);
849 if (msp_reset(client))
852 /* make sure that input/output is muted (paranoid mode) */
853 /* ACB, mute DSP input, mute SCART 1 */
854 if (msp_write_dsp(client, 0x13, 0x0f20))
857 if (state->has_i2s_conf)
858 msp_write_dem(client, 0x40, state->i2s_mode);
860 /* step-by-step initialisation, as described in the manual */
861 modus = msp34xxg_modus(client);
865 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1;
866 modus &= ~0x03; /* STATUS_CHANGE = 0 */
867 modus |= 0x01; /* AUTOMATIC_SOUND_DETECTION = 1 */
868 if (msp_write_dem(client, 0x30, modus))
870 if (msp_write_dem(client, 0x20, std))
873 /* write the dsps that may have an influence on
874 standard/audio autodetection right now */
875 msp34xxg_set_source(client, state->source);
877 /* AM/FM Prescale [15:8] 75khz deviation */
878 if (msp_write_dsp(client, 0x0e, 0x3000))
881 /* NICAM Prescale 9db gain (as recommended) */
882 if (msp_write_dsp(client, 0x10, 0x5a00))
888 int msp34xxg_thread(void *data)
890 struct i2c_client *client = data;
891 struct msp_state *state = i2c_get_clientdata(client);
894 v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n");
896 state->source = 1; /* default */
898 v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n");
899 msp_sleep(state, -1);
900 v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n");
903 v4l_dbg(1, msp_debug, client, "thread: restart scan\n");
905 if (kthread_should_stop())
909 msp34xxg_reset(client);
914 /* watch autodetect */
915 v4l_dbg(1, msp_debug, client, "triggered autodetect, waiting for result\n");
916 for (i = 0; i < 10; i++) {
917 if (msp_sleep(state, 100))
921 val = msp_read_dem(client, 0x7e);
926 v4l_dbg(2, msp_debug, client, "detection still in progress\n");
929 v4l_dbg(1, msp_debug, client, "detection still in progress after 10 tries. giving up.\n");
935 v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n",
936 msp_standard_std_name(std), std);
938 /* unmute: dispatch sound to scart output, set scart volume */
939 msp_set_audio(client);
942 if (msp_write_dsp(client, 0x13, state->acb))
945 if (state->has_i2s_conf)
946 msp_write_dem(client, 0x40, state->i2s_mode);
948 v4l_dbg(1, msp_debug, client, "thread: exit\n");
952 static void msp34xxg_detect_stereo(struct i2c_client *client)
954 struct msp_state *state = i2c_get_clientdata(client);
956 int status = msp_read_dem(client, 0x0200);
957 int is_bilingual = status & 0x100;
958 int is_stereo = status & 0x40;
960 state->rxsubchans = 0;
962 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
964 state->rxsubchans = V4L2_TUNER_SUB_MONO;
966 state->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
967 /* I'm supposed to check whether it's SAP or not
968 * and set only LANG2/SAP in this case. Yet, the MSP
969 * does a lot of work to hide this and handle everything
970 * the same way. I don't want to work around it so unless
971 * this is a problem, I'll handle SAP just like lang1/lang2.
974 v4l_dbg(1, msp_debug, client, "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
975 status, is_stereo, is_bilingual, state->rxsubchans);
978 static void msp34xxg_set_audmode(struct i2c_client *client)
980 struct msp_state *state = i2c_get_clientdata(client);
983 switch (state->audmode) {
984 case V4L2_TUNER_MODE_MONO:
985 source = 0; /* mono only */
987 case V4L2_TUNER_MODE_STEREO:
988 source = 1; /* stereo or A|B, see comment in msp34xxg_get_v4l2_stereo() */
989 /* problem: that could also mean 2 (scart input) */
991 case V4L2_TUNER_MODE_LANG1:
992 source = 3; /* stereo or A */
994 case V4L2_TUNER_MODE_LANG2:
995 source = 4; /* stereo or B */
1001 msp34xxg_set_source(client, source);
1004 void msp_set_audmode(struct i2c_client *client)
1006 struct msp_state *state = i2c_get_clientdata(client);
1008 switch (state->opmode) {
1010 case OPMODE_AUTODETECT:
1011 state->watch_stereo = 0;
1012 msp3400c_set_audmode(client);
1014 case OPMODE_AUTOSELECT:
1015 msp34xxg_set_audmode(client);
1020 void msp_detect_stereo(struct i2c_client *client)
1022 struct msp_state *state = i2c_get_clientdata(client);
1024 switch (state->opmode) {
1026 case OPMODE_AUTODETECT:
1027 msp3400c_detect_stereo(client);
1029 case OPMODE_AUTOSELECT:
1030 msp34xxg_detect_stereo(client);