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/audiochip.h>
30 #include <linux/kthread.h>
31 #include <linux/suspend.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 { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" },
49 { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" },
50 { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" },
51 { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" },
52 { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" },
53 { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" },
54 { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" },
55 { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" },
56 { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" },
57 { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" },
58 { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" },
59 { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" },
60 { -1, 0, 0, NULL }, /* EOF */
63 static struct msp3400c_init_data_dem {
72 } msp3400c_init_data[] = {
73 { /* AM (for carrier detect / msp3400) */
74 {75, 19, 36, 35, 39, 40},
75 {75, 19, 36, 35, 39, 40},
76 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
77 0x00d0, 0x0500, 0x0020, 0x3000
78 },{ /* AM (for carrier detect / msp3410) */
79 {-1, -1, -8, 2, 59, 126},
80 {-1, -1, -8, 2, 59, 126},
81 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
82 0x00d0, 0x0100, 0x0020, 0x3000
84 {-8, -8, 4, 6, 78, 107},
85 {-8, -8, 4, 6, 78, 107},
86 MSP_CARRIER(10.7), MSP_CARRIER(10.7),
87 0x00d0, 0x0480, 0x0020, 0x3000
88 },{ /* Terrestial FM-mono + FM-stereo */
89 {3, 18, 27, 48, 66, 72},
90 {3, 18, 27, 48, 66, 72},
91 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
92 0x00d0, 0x0480, 0x0030, 0x3000
94 { 1, 9, 14, 24, 33, 37},
95 { 3, 18, 27, 48, 66, 72},
96 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
97 0x00c6, 0x0480, 0x0000, 0x3000
98 },{ /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */
99 {-2, -8, -10, 10, 50, 86},
100 {3, 18, 27, 48, 66, 72},
101 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
102 0x00d0, 0x0040, 0x0120, 0x3000
103 },{ /* NICAM/FM -- I (6.0/6.552) */
104 {2, 4, -6, -4, 40, 94},
105 {3, 18, 27, 48, 66, 72},
106 MSP_CARRIER(6.0), MSP_CARRIER(6.0),
107 0x00d0, 0x0040, 0x0120, 0x3000
108 },{ /* NICAM/AM -- L (6.5/5.85) */
109 {-2, -8, -10, 10, 50, 86},
110 {-4, -12, -9, 23, 79, 126},
111 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
112 0x00c6, 0x0140, 0x0120, 0x7c00
116 struct msp3400c_carrier_detect {
121 static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = {
123 { MSP_CARRIER(4.5), "4.5 NTSC" },
124 { MSP_CARRIER(5.5), "5.5 PAL B/G" },
125 { MSP_CARRIER(6.0), "6.0 PAL I" },
126 { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" }
129 static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = {
131 { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" },
132 { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" }
135 static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = {
136 /* PAL SAT / SECAM */
137 { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" },
138 { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" },
139 { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" },
140 { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" },
141 { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" },
142 { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" },
145 /* ------------------------------------------------------------------------ */
147 const char *msp_standard_std_name(int std)
151 for (i = 0; msp_stdlist[i].name != NULL; i++)
152 if (msp_stdlist[i].retval == std)
153 return msp_stdlist[i].name;
157 static void msp_set_source(struct i2c_client *client, u16 src)
159 struct msp_state *state = i2c_get_clientdata(client);
162 msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */
163 msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */
165 msp_write_dsp(client, 0x0008, src);
166 msp_write_dsp(client, 0x0009, src);
168 msp_write_dsp(client, 0x000a, src);
169 msp_write_dsp(client, 0x000b, src);
170 msp_write_dsp(client, 0x000c, src);
171 if (state->has_scart23_in_scart2_out)
172 msp_write_dsp(client, 0x0041, src);
175 void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2)
177 msp_write_dem(client, 0x0093, cdo1 & 0xfff);
178 msp_write_dem(client, 0x009b, cdo1 >> 12);
179 msp_write_dem(client, 0x00a3, cdo2 & 0xfff);
180 msp_write_dem(client, 0x00ab, cdo2 >> 12);
181 msp_write_dem(client, 0x0056, 0); /* LOAD_REG_1/2 */
184 void msp3400c_set_mode(struct i2c_client *client, int mode)
186 struct msp_state *state = i2c_get_clientdata(client);
187 struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode];
190 v4l_dbg(1, msp_debug, client, "set_mode: %d\n", mode);
192 state->rxsubchans = V4L2_TUNER_SUB_MONO;
194 msp_write_dem(client, 0x00bb, data->ad_cv);
196 for (i = 5; i >= 0; i--) /* fir 1 */
197 msp_write_dem(client, 0x0001, data->fir1[i]);
199 msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */
200 msp_write_dem(client, 0x0005, 0x0040);
201 msp_write_dem(client, 0x0005, 0x0000);
202 for (i = 5; i >= 0; i--)
203 msp_write_dem(client, 0x0005, data->fir2[i]);
205 msp_write_dem(client, 0x0083, data->mode_reg);
207 msp3400c_set_carrier(client, data->cdo1, data->cdo2);
209 msp_set_source(client, data->dsp_src);
210 msp_write_dsp(client, 0x000e, data->dsp_matrix);
212 if (state->has_nicam) {
214 msp_write_dsp(client, 0x0010, 0x5a00); /* was: 0x3000 */
218 /* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP,
219 nor do they support stereo BTSC. */
220 static void msp3400c_set_audmode(struct i2c_client *client)
222 static char *strmode[] = { "mono", "stereo", "lang2", "lang1" };
223 struct msp_state *state = i2c_get_clientdata(client);
224 char *modestr = (state->audmode >= 0 && state->audmode < 4) ?
225 strmode[state->audmode] : "unknown";
226 int src = 0; /* channel source: FM/AM, nicam or SCART */
228 if (state->opmode == OPMODE_AUTOSELECT) {
229 /* this method would break everything, let's make sure
232 v4l_dbg(1, msp_debug, client,
233 "set_audmode called with mode=%d instead of set_source (ignored)\n",
238 /* switch demodulator */
239 switch (state->mode) {
240 case MSP_MODE_FM_TERRA:
241 v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr);
242 switch (state->audmode) {
243 case V4L2_TUNER_MODE_STEREO:
244 msp_write_dsp(client, 0x000e, 0x3001);
246 case V4L2_TUNER_MODE_MONO:
247 case V4L2_TUNER_MODE_LANG1:
248 case V4L2_TUNER_MODE_LANG2:
249 msp_write_dsp(client, 0x000e, 0x3000);
253 case MSP_MODE_FM_SAT:
254 v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr);
255 switch (state->audmode) {
256 case V4L2_TUNER_MODE_MONO:
257 msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
259 case V4L2_TUNER_MODE_STEREO:
260 msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
262 case V4L2_TUNER_MODE_LANG1:
263 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
265 case V4L2_TUNER_MODE_LANG2:
266 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
270 case MSP_MODE_FM_NICAM1:
271 case MSP_MODE_FM_NICAM2:
272 case MSP_MODE_AM_NICAM:
273 v4l_dbg(1, msp_debug, client, "NICAM set_audmode: %s\n",modestr);
274 msp3400c_set_carrier(client, state->second, state->main);
276 src = 0x0100; /* NICAM */
279 v4l_dbg(1, msp_debug, client, "BTSC set_audmode: %s\n",modestr);
281 case MSP_MODE_EXTERN:
282 v4l_dbg(1, msp_debug, client, "extern set_audmode: %s\n",modestr);
283 src = 0x0200; /* SCART */
285 case MSP_MODE_FM_RADIO:
286 v4l_dbg(1, msp_debug, client, "FM-Radio set_audmode: %s\n",modestr);
289 v4l_dbg(1, msp_debug, client, "mono set_audmode\n");
294 switch (state->audmode) {
295 case V4L2_TUNER_MODE_STEREO:
298 case V4L2_TUNER_MODE_MONO:
299 if (state->mode == MSP_MODE_AM_NICAM) {
300 v4l_dbg(1, msp_debug, client, "switching to AM mono\n");
301 /* AM mono decoding is handled by tuner, not MSP chip */
302 /* SCART switching control register */
303 msp_set_scart(client, SCART_MONO, 0);
307 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
310 case V4L2_TUNER_MODE_LANG1:
311 /* switch to stereo for stereo transmission, otherwise
312 keep first language */
313 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
316 case V4L2_TUNER_MODE_LANG2:
320 v4l_dbg(1, msp_debug, client, "set_audmode final source/matrix = 0x%x\n", src);
322 msp_set_source(client, src);
325 static void msp3400c_print_mode(struct i2c_client *client)
327 struct msp_state *state = i2c_get_clientdata(client);
329 if (state->main == state->second) {
330 v4l_dbg(1, msp_debug, client, "mono sound carrier: %d.%03d MHz\n",
331 state->main / 910000, (state->main / 910) % 1000);
333 v4l_dbg(1, msp_debug, client, "main sound carrier: %d.%03d MHz\n",
334 state->main / 910000, (state->main / 910) % 1000);
336 if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2)
337 v4l_dbg(1, msp_debug, client, "NICAM/FM carrier : %d.%03d MHz\n",
338 state->second / 910000, (state->second/910) % 1000);
339 if (state->mode == MSP_MODE_AM_NICAM)
340 v4l_dbg(1, msp_debug, client, "NICAM/AM carrier : %d.%03d MHz\n",
341 state->second / 910000, (state->second / 910) % 1000);
342 if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) {
343 v4l_dbg(1, msp_debug, client, "FM-stereo carrier : %d.%03d MHz\n",
344 state->second / 910000, (state->second / 910) % 1000);
348 /* ----------------------------------------------------------------------- */
350 static int msp3400c_detect_stereo(struct i2c_client *client)
352 struct msp_state *state = i2c_get_clientdata(client);
354 int rxsubchans = state->rxsubchans;
355 int newnicam = state->nicam_on;
358 switch (state->mode) {
359 case MSP_MODE_FM_TERRA:
360 val = msp_read_dsp(client, 0x18);
363 v4l_dbg(2, msp_debug, client, "stereo detect register: %d\n", val);
365 rxsubchans = V4L2_TUNER_SUB_STEREO;
366 } else if (val < -4096) {
367 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
369 rxsubchans = V4L2_TUNER_SUB_MONO;
373 case MSP_MODE_FM_NICAM1:
374 case MSP_MODE_FM_NICAM2:
375 case MSP_MODE_AM_NICAM:
376 val = msp_read_dem(client, 0x23);
377 v4l_dbg(2, msp_debug, client, "nicam sync=%d, mode=%d\n",
378 val & 1, (val & 0x1e) >> 1);
382 switch ((val & 0x1e) >> 1) {
385 rxsubchans = V4L2_TUNER_SUB_STEREO;
389 rxsubchans = V4L2_TUNER_SUB_MONO;
393 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
396 rxsubchans = V4L2_TUNER_SUB_MONO;
402 rxsubchans = V4L2_TUNER_SUB_MONO;
406 if (rxsubchans != state->rxsubchans) {
408 v4l_dbg(1, msp_debug, client, "watch: rxsubchans %02x => %02x\n",
409 state->rxsubchans, rxsubchans);
410 state->rxsubchans = rxsubchans;
412 if (newnicam != state->nicam_on) {
414 v4l_dbg(1, msp_debug, client, "watch: nicam %d => %d\n",
415 state->nicam_on, newnicam);
416 state->nicam_on = newnicam;
422 * A kernel thread for msp3400 control -- we don't want to block the
423 * in the ioctl while doing the sound carrier & stereo detect
425 /* stereo/multilang monitoring */
426 static void watch_stereo(struct i2c_client *client)
428 struct msp_state *state = i2c_get_clientdata(client);
430 if (msp3400c_detect_stereo(client)) {
431 msp3400c_set_audmode(client);
435 state->watch_stereo = 0;
438 int msp3400c_thread(void *data)
440 struct i2c_client *client = data;
441 struct msp_state *state = i2c_get_clientdata(client);
442 struct msp3400c_carrier_detect *cd;
443 int count, max1, max2, val1, val2, val, this;
446 v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n");
448 v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n");
449 msp_sleep(state, -1);
450 v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n");
453 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
455 if (kthread_should_stop())
458 if (state->radio || MSP_MODE_EXTERN == state->mode) {
459 /* no carrier scan, just unmute */
460 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n");
461 msp_set_audio(client);
466 msp_set_mute(client);
467 msp3400c_set_mode(client, MSP_MODE_AM_DETECT /* +1 */ );
470 state->watch_stereo = 0;
473 /* some time for the tuner to sync */
474 if (msp_sleep(state, 200))
477 /* carrier detect pass #1 -- main carrier */
478 cd = msp3400c_carrier_detect_main;
479 count = ARRAY_SIZE(msp3400c_carrier_detect_main);
481 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
482 /* autodetect doesn't work well with AM ... */
485 v4l_dbg(1, msp_debug, client, "AM sound override\n");
488 for (this = 0; this < count; this++) {
489 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
490 if (msp_sleep(state,100))
492 val = msp_read_dsp(client, 0x1b);
496 val1 = val, max1 = this;
497 v4l_dbg(1, msp_debug, client, "carrier1 val: %5d / %s\n", val,cd[this].name);
500 /* carrier detect pass #2 -- second (stereo) carrier */
503 cd = msp3400c_carrier_detect_55;
504 count = ARRAY_SIZE(msp3400c_carrier_detect_55);
507 cd = msp3400c_carrier_detect_65;
508 count = ARRAY_SIZE(msp3400c_carrier_detect_65);
518 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
519 /* autodetect doesn't work well with AM ... */
524 for (this = 0; this < count; this++) {
525 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
526 if (msp_sleep(state,100))
528 val = msp_read_dsp(client, 0x1b);
532 val2 = val, max2 = this;
533 v4l_dbg(1, msp_debug, client, "carrier2 val: %5d / %s\n", val,cd[this].name);
536 /* program the msp3400 according to the results */
537 state->main = msp3400c_carrier_detect_main[max1].cdo;
542 state->second = msp3400c_carrier_detect_55[max2].cdo;
543 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
544 state->watch_stereo = 1;
545 } else if (max2 == 1 && state->has_nicam) {
547 state->second = msp3400c_carrier_detect_55[max2].cdo;
548 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
549 msp3400c_set_carrier(client, state->second, state->main);
551 state->watch_stereo = 1;
558 state->second = MSP_CARRIER(6.552);
559 msp3400c_set_mode(client, MSP_MODE_FM_NICAM2);
560 msp3400c_set_carrier(client, state->second, state->main);
562 state->watch_stereo = 1;
565 if (max2 == 1 || max2 == 2) {
567 state->second = msp3400c_carrier_detect_65[max2].cdo;
568 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
569 state->watch_stereo = 1;
570 } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) {
571 /* L NICAM or AM-mono */
572 state->second = msp3400c_carrier_detect_65[max2].cdo;
573 msp3400c_set_mode(client, MSP_MODE_AM_NICAM);
574 msp3400c_set_carrier(client, state->second, state->main);
575 /* volume prescale for SCART (AM mono input) */
576 msp_write_dsp(client, 0x000d, 0x1900);
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 */
658 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1;
659 state->watch_stereo = 0;
663 v4l_dbg(2, msp_debug, client, "setting standard: %s (0x%04x)\n",
664 msp_standard_std_name(std), std);
667 /* programmed some specific mode */
670 /* triggered autodetect */
671 msp_write_dem(client, 0x20, std);
673 if (msp_sleep(state, 100))
677 val = msp_read_dem(client, 0x7e);
680 v4l_dbg(2, msp_debug, client, "detection still in progress\n");
683 for (i = 0; msp_stdlist[i].name != NULL; i++)
684 if (msp_stdlist[i].retval == val)
686 v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n",
687 msp_standard_std_name(val), val);
688 state->main = msp_stdlist[i].main;
689 state->second = msp_stdlist[i].second;
692 if (msp_amsound && !state->radio && (state->v4l2_std & V4L2_STD_SECAM) &&
694 /* autodetection has failed, let backup */
695 v4l_dbg(1, msp_debug, client, "autodetection failed,"
696 " switching to backup standard: %s (0x%04x)\n",
697 msp_stdlist[8].name ? msp_stdlist[8].name : "unknown",val);
699 msp_write_dem(client, 0x20, val);
702 /* set various prescales */
703 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
704 msp_write_dsp(client, 0x0e, 0x2403); /* FM */
705 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
709 case 0x0008: /* B/G NICAM */
710 case 0x000a: /* I NICAM */
712 state->mode = MSP_MODE_FM_NICAM1;
714 state->mode = MSP_MODE_FM_NICAM2;
715 /* just turn on stereo */
716 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
718 state->watch_stereo = 1;
721 state->mode = MSP_MODE_AM_NICAM;
722 state->rxsubchans = V4L2_TUNER_SUB_MONO;
724 state->watch_stereo = 1;
726 case 0x0020: /* BTSC */
727 /* The pre-'G' models only have BTSC-mono */
728 state->mode = MSP_MODE_BTSC;
729 state->rxsubchans = V4L2_TUNER_SUB_MONO;
731 case 0x0040: /* FM radio */
732 state->mode = MSP_MODE_FM_RADIO;
733 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
734 /* not needed in theory if we have radio, but
735 short programming enables carrier mute */
736 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
737 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
739 /* scart routing (this doesn't belong here I think) */
740 msp_set_scart(client,SCART_IN2,0);
745 state->mode = MSP_MODE_FM_TERRA;
746 state->rxsubchans = V4L2_TUNER_SUB_MONO;
747 state->watch_stereo = 1;
751 /* unmute, restore misc registers */
752 msp_set_audio(client);
753 msp_write_dsp(client, 0x13, state->acb);
754 if (state->has_i2s_conf)
755 msp_write_dem(client, 0x40, state->i2s_mode);
757 msp3400c_set_audmode(client);
759 /* monitor tv audio mode, the first time don't wait
760 so long to get a quick stereo/bilingual result */
761 if (msp_sleep(state, 1000))
763 while (state->watch_stereo) {
764 watch_stereo(client);
765 if (msp_sleep(state, 5000))
769 v4l_dbg(1, msp_debug, client, "thread: exit\n");
773 /* ----------------------------------------------------------------------- */
775 /* msp34xxG + (autoselect no-thread) */
776 /* this one uses both automatic standard detection and automatic sound */
777 /* select which are available in the newer G versions */
778 /* struct msp: only norm, acb and source are really used in this mode */
780 /* set the same 'source' for the loudspeaker, scart and quasi-peak detector
781 * the value for source is the same as bit 15:8 of DSP registers 0x08,
782 * 0x0a and 0x0c: 0=mono, 1=stereo or A|B, 2=SCART, 3=stereo or A, 4=stereo or B
784 * this function replaces msp3400c_set_audmode
786 static void msp34xxg_set_source(struct i2c_client *client, int source)
788 struct msp_state *state = i2c_get_clientdata(client);
790 /* fix matrix mode to stereo and let the msp choose what
791 * to output according to 'source', as recommended
792 * for MONO (source==0) downmixing set bit[7:0] to 0x30
794 int value = (source & 0x07) << 8 | (source == 0 ? 0x30 : 0x20);
796 v4l_dbg(1, msp_debug, client, "set source to %d (0x%x)\n", source, value);
797 msp_set_source(client, value);
799 * set identification threshold. Personally, I
800 * I set it to a higher value that the default
801 * of 0x190 to ignore noisy stereo signals.
802 * this needs tuning. (recommended range 0x00a0-0x03c0)
803 * 0x7f0 = forced mono mode
805 /* a2 threshold for stereo/bilingual */
806 msp_write_dem(client, 0x22, msp_stereo_thresh);
807 state->source = source;
810 /* (re-)initialize the msp34xxg, according to the current norm in state->norm
811 * return 0 if it worked, -1 if it failed
813 static int msp34xxg_reset(struct i2c_client *client)
815 struct msp_state *state = i2c_get_clientdata(client);
818 if (msp_reset(client))
821 /* make sure that input/output is muted (paranoid mode) */
822 /* ACB, mute DSP input, mute SCART 1 */
823 if (msp_write_dsp(client, 0x13, 0x0f20))
826 if (state->has_i2s_conf)
827 msp_write_dem(client, 0x40, state->i2s_mode);
829 /* step-by-step initialisation, as described in the manual */
830 modus = msp_modus(client);
834 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1;
835 modus &= ~0x03; /* STATUS_CHANGE = 0 */
836 modus |= 0x01; /* AUTOMATIC_SOUND_DETECTION = 1 */
837 if (msp_write_dem(client, 0x30, modus))
839 if (msp_write_dem(client, 0x20, std))
842 /* write the dsps that may have an influence on
843 standard/audio autodetection right now */
844 msp34xxg_set_source(client, state->source);
846 /* AM/FM Prescale [15:8] 75khz deviation */
847 if (msp_write_dsp(client, 0x0e, 0x3000))
850 /* NICAM Prescale 9db gain (as recommended) */
851 if (msp_write_dsp(client, 0x10, 0x5a00))
857 int msp34xxg_thread(void *data)
859 struct i2c_client *client = data;
860 struct msp_state *state = i2c_get_clientdata(client);
863 v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n");
865 state->source = 1; /* default */
867 v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n");
868 msp_sleep(state, -1);
869 v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n");
872 v4l_dbg(1, msp_debug, client, "thread: restart scan\n");
874 if (kthread_should_stop())
878 msp34xxg_reset(client);
883 /* watch autodetect */
884 v4l_dbg(1, msp_debug, client, "triggered autodetect, waiting for result\n");
885 for (i = 0; i < 10; i++) {
886 if (msp_sleep(state, 100))
890 val = msp_read_dem(client, 0x7e);
895 v4l_dbg(2, msp_debug, client, "detection still in progress\n");
898 v4l_dbg(1, msp_debug, client, "detection still in progress after 10 tries. giving up.\n");
904 v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n",
905 msp_standard_std_name(std), std);
907 /* unmute: dispatch sound to scart output, set scart volume */
908 msp_set_audio(client);
911 if (msp_write_dsp(client, 0x13, state->acb))
914 if (state->has_i2s_conf)
915 msp_write_dem(client, 0x40, state->i2s_mode);
917 v4l_dbg(1, msp_debug, client, "thread: exit\n");
921 static void msp34xxg_detect_stereo(struct i2c_client *client)
923 struct msp_state *state = i2c_get_clientdata(client);
925 int status = msp_read_dem(client, 0x0200);
926 int is_bilingual = status & 0x100;
927 int is_stereo = status & 0x40;
929 state->rxsubchans = 0;
931 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
933 state->rxsubchans = V4L2_TUNER_SUB_MONO;
935 state->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
936 /* I'm supposed to check whether it's SAP or not
937 * and set only LANG2/SAP in this case. Yet, the MSP
938 * does a lot of work to hide this and handle everything
939 * the same way. I don't want to work around it so unless
940 * this is a problem, I'll handle SAP just like lang1/lang2.
943 v4l_dbg(1, msp_debug, client, "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
944 status, is_stereo, is_bilingual, state->rxsubchans);
947 static void msp34xxg_set_audmode(struct i2c_client *client)
949 struct msp_state *state = i2c_get_clientdata(client);
952 switch (state->audmode) {
953 case V4L2_TUNER_MODE_MONO:
954 source = 0; /* mono only */
956 case V4L2_TUNER_MODE_STEREO:
957 source = 1; /* stereo or A|B, see comment in msp34xxg_get_v4l2_stereo() */
958 /* problem: that could also mean 2 (scart input) */
960 case V4L2_TUNER_MODE_LANG1:
961 source = 3; /* stereo or A */
963 case V4L2_TUNER_MODE_LANG2:
964 source = 4; /* stereo or B */
970 msp34xxg_set_source(client, source);
973 void msp_set_audmode(struct i2c_client *client)
975 struct msp_state *state = i2c_get_clientdata(client);
977 switch (state->opmode) {
979 case OPMODE_AUTODETECT:
980 state->watch_stereo = 0;
981 msp3400c_set_audmode(client);
983 case OPMODE_AUTOSELECT:
984 msp34xxg_set_audmode(client);
989 void msp_detect_stereo(struct i2c_client *client)
991 struct msp_state *state = i2c_get_clientdata(client);
993 switch (state->opmode) {
995 case OPMODE_AUTODETECT:
996 msp3400c_detect_stereo(client);
998 case OPMODE_AUTOSELECT:
999 msp34xxg_detect_stereo(client);