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];
192 v4l_dbg(1, msp_debug, client, "set_mode: %d\n", mode);
194 state->rxsubchans = V4L2_TUNER_SUB_MONO;
196 msp_write_dem(client, 0x00bb, data->ad_cv);
198 for (i = 5; i >= 0; i--) /* fir 1 */
199 msp_write_dem(client, 0x0001, data->fir1[i]);
201 msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */
202 msp_write_dem(client, 0x0005, 0x0040);
203 msp_write_dem(client, 0x0005, 0x0000);
204 for (i = 5; i >= 0; i--)
205 msp_write_dem(client, 0x0005, data->fir2[i]);
207 msp_write_dem(client, 0x0083, data->mode_reg);
209 msp3400c_set_carrier(client, data->cdo1, data->cdo2);
211 msp_set_source(client, data->dsp_src);
214 /* volume prescale for SCART (AM mono input) */
215 msp_write_dsp(client, 0x000d, 0x1900);
216 msp_write_dsp(client, 0x000e, data->dsp_matrix);
217 if (state->has_nicam) /* nicam prescale */
218 msp_write_dsp(client, 0x0010, 0x5a00);
221 /* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP,
222 nor do they support stereo BTSC. */
223 static void msp3400c_set_audmode(struct i2c_client *client)
225 static char *strmode[] = { "mono", "stereo", "lang2", "lang1" };
226 struct msp_state *state = i2c_get_clientdata(client);
227 char *modestr = (state->audmode >= 0 && state->audmode < 4) ?
228 strmode[state->audmode] : "unknown";
229 int src = 0; /* channel source: FM/AM, nicam or SCART */
231 if (state->opmode == OPMODE_AUTOSELECT) {
232 /* this method would break everything, let's make sure
235 v4l_dbg(1, msp_debug, client,
236 "set_audmode called with mode=%d instead of set_source (ignored)\n",
241 /* switch demodulator */
242 switch (state->mode) {
243 case MSP_MODE_FM_TERRA:
244 v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr);
245 switch (state->audmode) {
246 case V4L2_TUNER_MODE_STEREO:
247 msp_write_dsp(client, 0x000e, 0x3001);
249 case V4L2_TUNER_MODE_MONO:
250 case V4L2_TUNER_MODE_LANG1:
251 case V4L2_TUNER_MODE_LANG2:
252 msp_write_dsp(client, 0x000e, 0x3000);
256 case MSP_MODE_FM_SAT:
257 v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr);
258 switch (state->audmode) {
259 case V4L2_TUNER_MODE_MONO:
260 msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
262 case V4L2_TUNER_MODE_STEREO:
263 msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
265 case V4L2_TUNER_MODE_LANG1:
266 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
268 case V4L2_TUNER_MODE_LANG2:
269 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
273 case MSP_MODE_FM_NICAM1:
274 case MSP_MODE_FM_NICAM2:
275 case MSP_MODE_AM_NICAM:
276 v4l_dbg(1, msp_debug, client, "NICAM set_audmode: %s\n",modestr);
278 src = 0x0100; /* NICAM */
281 v4l_dbg(1, msp_debug, client, "BTSC set_audmode: %s\n",modestr);
283 case MSP_MODE_EXTERN:
284 v4l_dbg(1, msp_debug, client, "extern set_audmode: %s\n",modestr);
285 src = 0x0200; /* SCART */
287 case MSP_MODE_FM_RADIO:
288 v4l_dbg(1, msp_debug, client, "FM-Radio set_audmode: %s\n",modestr);
291 v4l_dbg(1, msp_debug, client, "mono set_audmode\n");
296 switch (state->audmode) {
297 case V4L2_TUNER_MODE_STEREO:
300 case V4L2_TUNER_MODE_MONO:
301 if (state->mode == MSP_MODE_AM_NICAM) {
302 v4l_dbg(1, msp_debug, client, "switching to AM mono\n");
303 /* AM mono decoding is handled by tuner, not MSP chip */
304 /* SCART switching control register */
305 msp_set_scart(client, SCART_MONO, 0);
309 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
312 case V4L2_TUNER_MODE_LANG1:
313 /* switch to stereo for stereo transmission, otherwise
314 keep first language */
315 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
318 case V4L2_TUNER_MODE_LANG2:
322 v4l_dbg(1, msp_debug, client, "set_audmode final source/matrix = 0x%x\n", src);
324 msp_set_source(client, src);
327 static void msp3400c_print_mode(struct i2c_client *client)
329 struct msp_state *state = i2c_get_clientdata(client);
331 if (state->main == state->second) {
332 v4l_dbg(1, msp_debug, client, "mono sound carrier: %d.%03d MHz\n",
333 state->main / 910000, (state->main / 910) % 1000);
335 v4l_dbg(1, msp_debug, client, "main sound carrier: %d.%03d MHz\n",
336 state->main / 910000, (state->main / 910) % 1000);
338 if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2)
339 v4l_dbg(1, msp_debug, client, "NICAM/FM carrier : %d.%03d MHz\n",
340 state->second / 910000, (state->second/910) % 1000);
341 if (state->mode == MSP_MODE_AM_NICAM)
342 v4l_dbg(1, msp_debug, client, "NICAM/AM carrier : %d.%03d MHz\n",
343 state->second / 910000, (state->second / 910) % 1000);
344 if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) {
345 v4l_dbg(1, msp_debug, client, "FM-stereo carrier : %d.%03d MHz\n",
346 state->second / 910000, (state->second / 910) % 1000);
350 /* ----------------------------------------------------------------------- */
352 static int msp3400c_detect_stereo(struct i2c_client *client)
354 struct msp_state *state = i2c_get_clientdata(client);
356 int rxsubchans = state->rxsubchans;
357 int newnicam = state->nicam_on;
360 switch (state->mode) {
361 case MSP_MODE_FM_TERRA:
362 val = msp_read_dsp(client, 0x18);
365 v4l_dbg(2, msp_debug, client, "stereo detect register: %d\n", val);
367 rxsubchans = V4L2_TUNER_SUB_STEREO;
368 } else if (val < -4096) {
369 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
371 rxsubchans = V4L2_TUNER_SUB_MONO;
375 case MSP_MODE_FM_NICAM1:
376 case MSP_MODE_FM_NICAM2:
377 case MSP_MODE_AM_NICAM:
378 val = msp_read_dem(client, 0x23);
379 v4l_dbg(2, msp_debug, client, "nicam sync=%d, mode=%d\n",
380 val & 1, (val & 0x1e) >> 1);
384 switch ((val & 0x1e) >> 1) {
387 rxsubchans = V4L2_TUNER_SUB_STEREO;
391 rxsubchans = V4L2_TUNER_SUB_MONO;
395 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
398 rxsubchans = V4L2_TUNER_SUB_MONO;
404 rxsubchans = V4L2_TUNER_SUB_MONO;
408 if (rxsubchans != state->rxsubchans) {
410 v4l_dbg(1, msp_debug, client, "watch: rxsubchans %02x => %02x\n",
411 state->rxsubchans, rxsubchans);
412 state->rxsubchans = rxsubchans;
414 if (newnicam != state->nicam_on) {
416 v4l_dbg(1, msp_debug, client, "watch: nicam %d => %d\n",
417 state->nicam_on, newnicam);
418 state->nicam_on = newnicam;
424 * A kernel thread for msp3400 control -- we don't want to block the
425 * in the ioctl while doing the sound carrier & stereo detect
427 /* stereo/multilang monitoring */
428 static void watch_stereo(struct i2c_client *client)
430 struct msp_state *state = i2c_get_clientdata(client);
432 if (msp_detect_stereo(client)) {
433 msp_set_audmode(client);
437 state->watch_stereo = 0;
440 int msp3400c_thread(void *data)
442 struct i2c_client *client = data;
443 struct msp_state *state = i2c_get_clientdata(client);
444 struct msp3400c_carrier_detect *cd;
445 int count, max1, max2, val1, val2, val, this;
448 v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n");
450 v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n");
451 msp_sleep(state, -1);
452 v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n");
455 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
457 if (kthread_should_stop())
460 if (state->radio || MSP_MODE_EXTERN == state->mode) {
461 /* no carrier scan, just unmute */
462 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n");
463 msp_set_audio(client);
468 msp_set_mute(client);
469 msp3400c_set_mode(client, MSP_MODE_AM_DETECT);
472 state->watch_stereo = 0;
475 /* some time for the tuner to sync */
476 if (msp_sleep(state, 200))
479 /* carrier detect pass #1 -- main carrier */
480 cd = msp3400c_carrier_detect_main;
481 count = ARRAY_SIZE(msp3400c_carrier_detect_main);
483 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
484 /* autodetect doesn't work well with AM ... */
487 v4l_dbg(1, msp_debug, client, "AM sound override\n");
490 for (this = 0; this < count; this++) {
491 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
492 if (msp_sleep(state,100))
494 val = msp_read_dsp(client, 0x1b);
498 val1 = val, max1 = this;
499 v4l_dbg(1, msp_debug, client, "carrier1 val: %5d / %s\n", val,cd[this].name);
502 /* carrier detect pass #2 -- second (stereo) carrier */
505 cd = msp3400c_carrier_detect_55;
506 count = ARRAY_SIZE(msp3400c_carrier_detect_55);
509 cd = msp3400c_carrier_detect_65;
510 count = ARRAY_SIZE(msp3400c_carrier_detect_65);
520 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
521 /* autodetect doesn't work well with AM ... */
526 for (this = 0; this < count; this++) {
527 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
528 if (msp_sleep(state,100))
530 val = msp_read_dsp(client, 0x1b);
534 val2 = val, max2 = this;
535 v4l_dbg(1, msp_debug, client, "carrier2 val: %5d / %s\n", val,cd[this].name);
538 /* program the msp3400 according to the results */
539 state->main = msp3400c_carrier_detect_main[max1].cdo;
544 state->second = msp3400c_carrier_detect_55[max2].cdo;
545 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
546 state->watch_stereo = 1;
547 } else if (max2 == 1 && state->has_nicam) {
549 state->second = msp3400c_carrier_detect_55[max2].cdo;
550 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
551 msp3400c_set_carrier(client, state->second, state->main);
553 state->watch_stereo = 1;
560 state->second = MSP_CARRIER(6.552);
561 msp3400c_set_mode(client, MSP_MODE_FM_NICAM2);
562 msp3400c_set_carrier(client, state->second, state->main);
564 state->watch_stereo = 1;
567 if (max2 == 1 || max2 == 2) {
569 state->second = msp3400c_carrier_detect_65[max2].cdo;
570 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
571 state->watch_stereo = 1;
572 } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) {
573 /* L NICAM or AM-mono */
574 state->second = msp3400c_carrier_detect_65[max2].cdo;
575 msp3400c_set_mode(client, MSP_MODE_AM_NICAM);
576 msp3400c_set_carrier(client, state->second, state->main);
577 state->watch_stereo = 1;
578 } else if (max2 == 0 && state->has_nicam) {
580 state->second = msp3400c_carrier_detect_65[max2].cdo;
581 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
582 msp3400c_set_carrier(client, state->second, state->main);
584 state->watch_stereo = 1;
592 state->second = msp3400c_carrier_detect_main[max1].cdo;
593 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
594 msp3400c_set_carrier(client, state->second, state->main);
595 state->rxsubchans = V4L2_TUNER_SUB_MONO;
600 msp_set_audio(client);
601 msp3400c_set_audmode(client);
604 msp3400c_print_mode(client);
606 /* monitor tv audio mode, the first time don't wait
607 so long to get a quick stereo/bilingual result */
608 if (msp_sleep(state, 1000))
610 while (state->watch_stereo) {
611 if (msp_sleep(state, 5000))
613 watch_stereo(client);
616 v4l_dbg(1, msp_debug, client, "thread: exit\n");
621 int msp3410d_thread(void *data)
623 struct i2c_client *client = data;
624 struct msp_state *state = i2c_get_clientdata(client);
627 v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n");
630 v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n");
632 v4l_dbg(2, msp_debug, client, "msp3410 thread: wakeup\n");
635 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
637 if (kthread_should_stop())
640 if (state->mode == MSP_MODE_EXTERN) {
641 /* no carrier scan needed, just unmute */
642 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n");
643 msp_set_audio(client);
647 /* put into sane state (and mute) */
650 /* some time for the tuner to sync */
651 if (msp_sleep(state,200))
654 /* start autodetect. Note: autodetect is not supported for
655 NTSC-M and radio, hence we force the standard in those cases. */
659 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1;
660 state->watch_stereo = 0;
664 v4l_dbg(2, msp_debug, client, "setting standard: %s (0x%04x)\n",
665 msp_standard_std_name(std), std);
668 /* programmed some specific mode */
671 /* triggered autodetect */
672 msp_write_dem(client, 0x20, std);
674 if (msp_sleep(state, 100))
678 val = msp_read_dem(client, 0x7e);
681 v4l_dbg(2, msp_debug, client, "detection still in progress\n");
684 for (i = 0; msp_stdlist[i].name != NULL; i++)
685 if (msp_stdlist[i].retval == val)
687 v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n",
688 msp_standard_std_name(val), val);
689 state->main = msp_stdlist[i].main;
690 state->second = msp_stdlist[i].second;
693 if (msp_amsound && !state->radio && (state->v4l2_std & V4L2_STD_SECAM) &&
695 /* autodetection has failed, let backup */
696 v4l_dbg(1, msp_debug, client, "autodetection failed,"
697 " switching to backup standard: %s (0x%04x)\n",
698 msp_stdlist[8].name ? msp_stdlist[8].name : "unknown",val);
699 state->std = val = 0x0009;
700 msp_write_dem(client, 0x20, val);
705 case 0x0008: /* B/G NICAM */
706 case 0x000a: /* I NICAM */
707 case 0x000b: /* D/K NICAM */
709 state->mode = MSP_MODE_FM_NICAM2;
711 state->mode = MSP_MODE_FM_NICAM1;
712 /* just turn on stereo */
713 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
715 state->watch_stereo = 1;
718 state->mode = MSP_MODE_AM_NICAM;
719 state->rxsubchans = V4L2_TUNER_SUB_MONO;
721 state->watch_stereo = 1;
723 case 0x0020: /* BTSC */
724 /* The pre-'G' models only have BTSC-mono */
725 state->mode = MSP_MODE_BTSC;
726 state->rxsubchans = V4L2_TUNER_SUB_MONO;
728 case 0x0040: /* FM radio */
729 state->mode = MSP_MODE_FM_RADIO;
730 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
731 /* not needed in theory if we have radio, but
732 short programming enables carrier mute */
733 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
734 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
736 /* scart routing (this doesn't belong here I think) */
737 msp_set_scart(client,SCART_IN2,0);
743 state->mode = MSP_MODE_FM_TERRA;
744 state->rxsubchans = V4L2_TUNER_SUB_MONO;
745 state->watch_stereo = 1;
749 /* set various prescales */
750 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
751 msp_write_dsp(client, 0x0e, 0x3000); /* FM */
752 if (state->has_nicam)
753 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
755 if (state->has_i2s_conf)
756 msp_write_dem(client, 0x40, state->i2s_mode);
758 /* unmute, restore misc registers */
759 msp_set_audio(client);
761 msp_write_dsp(client, 0x13, state->acb);
762 msp3400c_set_audmode(client);
764 /* monitor tv audio mode, the first time don't wait
765 so long to get a quick stereo/bilingual result */
766 if (msp_sleep(state, 1000))
768 while (state->watch_stereo) {
769 watch_stereo(client);
770 if (msp_sleep(state, 5000))
774 v4l_dbg(1, msp_debug, client, "thread: exit\n");
778 /* ----------------------------------------------------------------------- */
780 /* msp34xxG + (autoselect no-thread)
781 * this one uses both automatic standard detection and automatic sound
782 * select which are available in the newer G versions
783 * struct msp: only norm, acb and source are really used in this mode
786 /* set the same 'source' for the loudspeaker, scart and quasi-peak detector
787 * the value for source is the same as bit 15:8 of DSP registers 0x08,
788 * 0x0a and 0x0c: 0=mono, 1=stereo or A|B, 2=SCART, 3=stereo or A, 4=stereo or B
790 static void msp34xxg_set_source(struct i2c_client *client, int source)
792 struct msp_state *state = i2c_get_clientdata(client);
794 /* fix matrix mode to stereo and let the msp choose what
795 * to output according to 'source', as recommended
796 * for MONO (source==0) downmixing set bit[7:0] to 0x30
798 int value = (source & 0x07) << 8 | (source == 0 ? 0x30 : 0x20);
800 v4l_dbg(1, msp_debug, client, "set source to %d (0x%x)\n", source, value);
801 msp_set_source(client, value);
803 * set identification threshold. Personally, I
804 * I set it to a higher value that the default
805 * of 0x190 to ignore noisy stereo signals.
806 * this needs tuning. (recommended range 0x00a0-0x03c0)
807 * 0x7f0 = forced mono mode
809 /* a2 threshold for stereo/bilingual */
810 msp_write_dem(client, 0x22, msp_stereo_thresh);
811 state->source = source;
814 static int msp34xxg_modus(struct i2c_client *client)
816 struct msp_state *state = i2c_get_clientdata(client);
819 v4l_dbg(1, msp_debug, client, "selected radio modus\n");
823 if (state->v4l2_std & V4L2_STD_PAL) {
824 v4l_dbg(1, msp_debug, client, "selected PAL modus\n");
827 if (state->v4l2_std == V4L2_STD_NTSC_M_JP) {
828 v4l_dbg(1, msp_debug, client, "selected M (EIA-J) modus\n");
831 if (state->v4l2_std == V4L2_STD_NTSC_M_KR) {
832 v4l_dbg(1, msp_debug, client, "selected M (A2) modus\n");
835 if (state->v4l2_std & V4L2_STD_MN) {
836 v4l_dbg(1, msp_debug, client, "selected M (BTSC) modus\n");
839 if (state->v4l2_std & V4L2_STD_SECAM) {
840 v4l_dbg(1, msp_debug, client, "selected SECAM modus\n");
846 /* (re-)initialize the msp34xxg */
847 static void msp34xxg_reset(struct i2c_client *client)
849 struct msp_state *state = i2c_get_clientdata(client);
852 /* initialize std to 1 (autodetect) to signal that no standard is
858 /* make sure that input/output is muted (paranoid mode) */
859 /* ACB, mute DSP input, mute SCART 1 */
860 msp_write_dsp(client, 0x13, 0x0f20);
862 if (state->has_i2s_conf)
863 msp_write_dem(client, 0x40, state->i2s_mode);
865 /* step-by-step initialisation, as described in the manual */
866 modus = msp34xxg_modus(client);
867 msp_write_dem(client, 0x30, modus);
869 /* write the dsps that may have an influence on
870 standard/audio autodetection right now */
871 msp34xxg_set_source(client, state->source);
873 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
874 msp_write_dsp(client, 0x0e, 0x3000); /* FM */
875 if (state->has_nicam)
876 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
878 /* set identification threshold. Personally, I
879 * I set it to a higher value than the default
880 * of 0x190 to ignore noisy stereo signals.
881 * this needs tuning. (recommended range 0x00a0-0x03c0)
882 * 0x7f0 = forced mono mode
884 * a2 threshold for stereo/bilingual.
885 * Note: this register is part of the Manual/Compatibility mode.
886 * It is supported by all 'G'-family chips.
888 msp_write_dem(client, 0x22, msp_stereo_thresh);
891 int msp34xxg_thread(void *data)
893 struct i2c_client *client = data;
894 struct msp_state *state = i2c_get_clientdata(client);
897 v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n");
899 state->source = 1; /* default */
901 v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n");
902 msp_sleep(state, -1);
903 v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n");
906 v4l_dbg(1, msp_debug, client, "thread: restart scan\n");
908 if (kthread_should_stop())
912 msp34xxg_reset(client);
913 state->std = state->radio ? 0x40 : msp_standard;
916 /* start autodetect */
917 msp_write_dem(client, 0x20, state->std);
919 /* watch autodetect */
920 v4l_dbg(1, msp_debug, client, "started autodetect, waiting for result\n");
921 for (i = 0; i < 10; i++) {
922 if (msp_sleep(state, 100))
926 val = msp_read_dem(client, 0x7e);
931 v4l_dbg(2, msp_debug, client, "detection still in progress\n");
933 if (state->std == 1) {
934 v4l_dbg(1, msp_debug, client, "detection still in progress after 10 tries. giving up.\n");
939 v4l_dbg(1, msp_debug, client, "detected standard: %s (0x%04x)\n",
940 msp_standard_std_name(state->std), state->std);
942 /* unmute: dispatch sound to scart output, set scart volume */
943 msp_set_audio(client);
946 if (msp_write_dsp(client, 0x13, state->acb))
949 /* the periodic stereo/SAP check is only relevant for
950 the 0x20 standard (BTSC) */
951 if (state->std != 0x20)
954 state->watch_stereo = 1;
956 /* monitor tv audio mode, the first time don't wait
957 in order to get a quick stereo/SAP update */
958 watch_stereo(client);
959 while (state->watch_stereo) {
960 watch_stereo(client);
961 if (msp_sleep(state, 5000))
965 v4l_dbg(1, msp_debug, client, "thread: exit\n");
969 static int msp34xxg_detect_stereo(struct i2c_client *client)
971 struct msp_state *state = i2c_get_clientdata(client);
972 int status = msp_read_dem(client, 0x0200);
973 int is_bilingual = status & 0x100;
974 int is_stereo = status & 0x40;
975 int oldrx = state->rxsubchans;
977 state->rxsubchans = 0;
979 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
981 state->rxsubchans = V4L2_TUNER_SUB_MONO;
983 if (state->std == 0x20)
984 state->rxsubchans |= V4L2_TUNER_SUB_SAP;
986 state->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
988 v4l_dbg(1, msp_debug, client, "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
989 status, is_stereo, is_bilingual, state->rxsubchans);
990 return (oldrx != state->rxsubchans);
993 static void msp34xxg_set_audmode(struct i2c_client *client)
995 struct msp_state *state = i2c_get_clientdata(client);
998 if (state->std == 0x20) {
999 if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) &&
1000 (state->audmode == V4L2_TUNER_MODE_STEREO ||
1001 state->audmode == V4L2_TUNER_MODE_LANG2)) {
1002 msp_write_dem(client, 0x20, 0x21);
1004 msp_write_dem(client, 0x20, 0x20);
1008 switch (state->audmode) {
1009 case V4L2_TUNER_MODE_MONO:
1010 source = 0; /* mono only */
1012 case V4L2_TUNER_MODE_STEREO:
1013 source = 1; /* stereo or A|B, see comment in msp34xxg_get_v4l2_stereo() */
1014 /* problem: that could also mean 2 (scart input) */
1016 case V4L2_TUNER_MODE_LANG1:
1017 source = 3; /* stereo or A */
1019 case V4L2_TUNER_MODE_LANG2:
1020 source = 4; /* stereo or B */
1026 msp34xxg_set_source(client, source);
1029 void msp_set_audmode(struct i2c_client *client)
1031 struct msp_state *state = i2c_get_clientdata(client);
1033 switch (state->opmode) {
1035 case OPMODE_AUTODETECT:
1036 msp3400c_set_audmode(client);
1038 case OPMODE_AUTOSELECT:
1039 msp34xxg_set_audmode(client);
1044 int msp_detect_stereo(struct i2c_client *client)
1046 struct msp_state *state = i2c_get_clientdata(client);
1048 switch (state->opmode) {
1050 case OPMODE_AUTODETECT:
1051 return msp3400c_detect_stereo(client);
1052 case OPMODE_AUTOSELECT:
1053 return msp34xxg_detect_stereo(client);