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 */
232 if (state->opmode == OPMODE_AUTOSELECT) {
233 /* this method would break everything, let's make sure
236 v4l_dbg(1, msp_debug, client,
237 "set_audmode called with mode=%d instead of set_source (ignored)\n",
242 /* switch demodulator */
243 switch (state->mode) {
244 case MSP_MODE_FM_TERRA:
245 v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr);
246 switch (state->audmode) {
247 case V4L2_TUNER_MODE_STEREO:
248 msp_write_dsp(client, 0x000e, 0x3001);
250 case V4L2_TUNER_MODE_MONO:
251 case V4L2_TUNER_MODE_LANG1:
252 case V4L2_TUNER_MODE_LANG2:
253 case V4L2_TUNER_MODE_LANG1_LANG2:
254 msp_write_dsp(client, 0x000e, 0x3000);
258 case MSP_MODE_FM_SAT:
259 v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr);
260 switch (state->audmode) {
261 case V4L2_TUNER_MODE_MONO:
262 msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
264 case V4L2_TUNER_MODE_STEREO:
265 case V4L2_TUNER_MODE_LANG1_LANG2:
266 msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
268 case V4L2_TUNER_MODE_LANG1:
269 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
271 case V4L2_TUNER_MODE_LANG2:
272 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
276 case MSP_MODE_FM_NICAM1:
277 case MSP_MODE_FM_NICAM2:
278 case MSP_MODE_AM_NICAM:
279 v4l_dbg(1, msp_debug, client, "NICAM set_audmode: %s\n",modestr);
281 src = 0x0100; /* NICAM */
284 v4l_dbg(1, msp_debug, client, "BTSC set_audmode: %s\n",modestr);
286 case MSP_MODE_EXTERN:
287 v4l_dbg(1, msp_debug, client, "extern set_audmode: %s\n",modestr);
288 src = 0x0200; /* SCART */
290 case MSP_MODE_FM_RADIO:
291 v4l_dbg(1, msp_debug, client, "FM-Radio set_audmode: %s\n",modestr);
294 v4l_dbg(1, msp_debug, client, "mono set_audmode\n");
299 switch (state->audmode) {
300 case V4L2_TUNER_MODE_STEREO:
301 case V4L2_TUNER_MODE_LANG1_LANG2:
304 case V4L2_TUNER_MODE_MONO:
305 if (state->mode == MSP_MODE_AM_NICAM) {
306 v4l_dbg(1, msp_debug, client, "switching to AM mono\n");
307 /* AM mono decoding is handled by tuner, not MSP chip */
308 /* SCART switching control register */
309 msp_set_scart(client, SCART_MONO, 0);
313 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
316 case V4L2_TUNER_MODE_LANG1:
317 /* switch to stereo for stereo transmission, otherwise
318 keep first language */
319 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
322 case V4L2_TUNER_MODE_LANG2:
326 v4l_dbg(1, msp_debug, client, "set_audmode final source/matrix = 0x%x\n", src);
328 msp_set_source(client, src);
331 static void msp3400c_print_mode(struct i2c_client *client)
333 struct msp_state *state = i2c_get_clientdata(client);
335 if (state->main == state->second) {
336 v4l_dbg(1, msp_debug, client, "mono sound carrier: %d.%03d MHz\n",
337 state->main / 910000, (state->main / 910) % 1000);
339 v4l_dbg(1, msp_debug, client, "main sound carrier: %d.%03d MHz\n",
340 state->main / 910000, (state->main / 910) % 1000);
342 if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2)
343 v4l_dbg(1, msp_debug, client, "NICAM/FM carrier : %d.%03d MHz\n",
344 state->second / 910000, (state->second/910) % 1000);
345 if (state->mode == MSP_MODE_AM_NICAM)
346 v4l_dbg(1, msp_debug, client, "NICAM/AM carrier : %d.%03d MHz\n",
347 state->second / 910000, (state->second / 910) % 1000);
348 if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) {
349 v4l_dbg(1, msp_debug, client, "FM-stereo carrier : %d.%03d MHz\n",
350 state->second / 910000, (state->second / 910) % 1000);
354 /* ----------------------------------------------------------------------- */
356 static int msp3400c_detect_stereo(struct i2c_client *client)
358 struct msp_state *state = i2c_get_clientdata(client);
360 int rxsubchans = state->rxsubchans;
361 int newnicam = state->nicam_on;
364 switch (state->mode) {
365 case MSP_MODE_FM_TERRA:
366 val = msp_read_dsp(client, 0x18);
369 v4l_dbg(2, msp_debug, client, "stereo detect register: %d\n", val);
371 rxsubchans = V4L2_TUNER_SUB_STEREO;
372 } else if (val < -4096) {
373 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
375 rxsubchans = V4L2_TUNER_SUB_MONO;
379 case MSP_MODE_FM_NICAM1:
380 case MSP_MODE_FM_NICAM2:
381 case MSP_MODE_AM_NICAM:
382 val = msp_read_dem(client, 0x23);
383 v4l_dbg(2, msp_debug, client, "nicam sync=%d, mode=%d\n",
384 val & 1, (val & 0x1e) >> 1);
388 switch ((val & 0x1e) >> 1) {
391 rxsubchans = V4L2_TUNER_SUB_STEREO;
395 rxsubchans = V4L2_TUNER_SUB_MONO;
399 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
402 rxsubchans = V4L2_TUNER_SUB_MONO;
408 rxsubchans = V4L2_TUNER_SUB_MONO;
412 if (rxsubchans != state->rxsubchans) {
414 v4l_dbg(1, msp_debug, client, "watch: rxsubchans %02x => %02x\n",
415 state->rxsubchans, rxsubchans);
416 state->rxsubchans = rxsubchans;
418 if (newnicam != state->nicam_on) {
420 v4l_dbg(1, msp_debug, client, "watch: nicam %d => %d\n",
421 state->nicam_on, newnicam);
422 state->nicam_on = newnicam;
428 * A kernel thread for msp3400 control -- we don't want to block the
429 * in the ioctl while doing the sound carrier & stereo detect
431 /* stereo/multilang monitoring */
432 static void watch_stereo(struct i2c_client *client)
434 struct msp_state *state = i2c_get_clientdata(client);
436 if (msp_detect_stereo(client)) {
437 msp_set_audmode(client);
441 state->watch_stereo = 0;
444 int msp3400c_thread(void *data)
446 struct i2c_client *client = data;
447 struct msp_state *state = i2c_get_clientdata(client);
448 struct msp3400c_carrier_detect *cd;
449 int count, max1, max2, val1, val2, val, this;
452 v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n");
454 v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n");
455 msp_sleep(state, -1);
456 v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n");
459 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
461 if (kthread_should_stop())
464 if (state->radio || MSP_MODE_EXTERN == state->mode) {
465 /* no carrier scan, just unmute */
466 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n");
467 msp_set_audio(client);
472 msp_set_mute(client);
473 msp3400c_set_mode(client, MSP_MODE_AM_DETECT);
476 state->watch_stereo = 0;
479 /* some time for the tuner to sync */
480 if (msp_sleep(state, 200))
483 /* carrier detect pass #1 -- main carrier */
484 cd = msp3400c_carrier_detect_main;
485 count = ARRAY_SIZE(msp3400c_carrier_detect_main);
487 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
488 /* autodetect doesn't work well with AM ... */
491 v4l_dbg(1, msp_debug, client, "AM sound override\n");
494 for (this = 0; this < count; this++) {
495 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
496 if (msp_sleep(state,100))
498 val = msp_read_dsp(client, 0x1b);
502 val1 = val, max1 = this;
503 v4l_dbg(1, msp_debug, client, "carrier1 val: %5d / %s\n", val,cd[this].name);
506 /* carrier detect pass #2 -- second (stereo) carrier */
509 cd = msp3400c_carrier_detect_55;
510 count = ARRAY_SIZE(msp3400c_carrier_detect_55);
513 cd = msp3400c_carrier_detect_65;
514 count = ARRAY_SIZE(msp3400c_carrier_detect_65);
524 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
525 /* autodetect doesn't work well with AM ... */
530 for (this = 0; this < count; this++) {
531 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
532 if (msp_sleep(state,100))
534 val = msp_read_dsp(client, 0x1b);
538 val2 = val, max2 = this;
539 v4l_dbg(1, msp_debug, client, "carrier2 val: %5d / %s\n", val,cd[this].name);
542 /* program the msp3400 according to the results */
543 state->main = msp3400c_carrier_detect_main[max1].cdo;
548 state->second = msp3400c_carrier_detect_55[max2].cdo;
549 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
550 state->watch_stereo = 1;
551 } else if (max2 == 1 && state->has_nicam) {
553 state->second = msp3400c_carrier_detect_55[max2].cdo;
554 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
555 msp3400c_set_carrier(client, state->second, state->main);
557 state->watch_stereo = 1;
564 state->second = MSP_CARRIER(6.552);
565 msp3400c_set_mode(client, MSP_MODE_FM_NICAM2);
566 msp3400c_set_carrier(client, state->second, state->main);
568 state->watch_stereo = 1;
571 if (max2 == 1 || max2 == 2) {
573 state->second = msp3400c_carrier_detect_65[max2].cdo;
574 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
575 state->watch_stereo = 1;
576 } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) {
577 /* L NICAM or AM-mono */
578 state->second = msp3400c_carrier_detect_65[max2].cdo;
579 msp3400c_set_mode(client, MSP_MODE_AM_NICAM);
580 msp3400c_set_carrier(client, state->second, state->main);
581 state->watch_stereo = 1;
582 } else if (max2 == 0 && state->has_nicam) {
584 state->second = msp3400c_carrier_detect_65[max2].cdo;
585 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
586 msp3400c_set_carrier(client, state->second, state->main);
588 state->watch_stereo = 1;
596 state->second = msp3400c_carrier_detect_main[max1].cdo;
597 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
598 msp3400c_set_carrier(client, state->second, state->main);
599 state->rxsubchans = V4L2_TUNER_SUB_MONO;
604 msp_set_audio(client);
605 msp3400c_set_audmode(client);
608 msp3400c_print_mode(client);
610 /* monitor tv audio mode, the first time don't wait
611 so long to get a quick stereo/bilingual result */
612 if (msp_sleep(state, 1000))
614 while (state->watch_stereo) {
615 if (msp_sleep(state, 5000))
617 watch_stereo(client);
620 v4l_dbg(1, msp_debug, client, "thread: exit\n");
625 int msp3410d_thread(void *data)
627 struct i2c_client *client = data;
628 struct msp_state *state = i2c_get_clientdata(client);
631 v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n");
634 v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n");
636 v4l_dbg(2, msp_debug, client, "msp3410 thread: wakeup\n");
639 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
641 if (kthread_should_stop())
644 if (state->mode == MSP_MODE_EXTERN) {
645 /* no carrier scan needed, just unmute */
646 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n");
647 msp_set_audio(client);
651 /* put into sane state (and mute) */
654 /* some time for the tuner to sync */
655 if (msp_sleep(state,200))
658 /* start autodetect. Note: autodetect is not supported for
659 NTSC-M and radio, hence we force the standard in those cases. */
663 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1;
664 state->watch_stereo = 0;
668 v4l_dbg(2, msp_debug, client, "setting standard: %s (0x%04x)\n",
669 msp_standard_std_name(std), std);
672 /* programmed some specific mode */
675 /* triggered autodetect */
676 msp_write_dem(client, 0x20, std);
678 if (msp_sleep(state, 100))
682 val = msp_read_dem(client, 0x7e);
685 v4l_dbg(2, msp_debug, client, "detection still in progress\n");
688 for (i = 0; msp_stdlist[i].name != NULL; i++)
689 if (msp_stdlist[i].retval == val)
691 v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n",
692 msp_standard_std_name(val), val);
693 state->main = msp_stdlist[i].main;
694 state->second = msp_stdlist[i].second;
697 if (msp_amsound && !state->radio && (state->v4l2_std & V4L2_STD_SECAM) &&
699 /* autodetection has failed, let backup */
700 v4l_dbg(1, msp_debug, client, "autodetection failed,"
701 " switching to backup standard: %s (0x%04x)\n",
702 msp_stdlist[8].name ? msp_stdlist[8].name : "unknown",val);
703 state->std = val = 0x0009;
704 msp_write_dem(client, 0x20, val);
709 case 0x0008: /* B/G NICAM */
710 case 0x000a: /* I NICAM */
711 case 0x000b: /* D/K NICAM */
713 state->mode = MSP_MODE_FM_NICAM2;
715 state->mode = MSP_MODE_FM_NICAM1;
716 /* just turn on stereo */
717 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
719 state->watch_stereo = 1;
722 state->mode = MSP_MODE_AM_NICAM;
723 state->rxsubchans = V4L2_TUNER_SUB_MONO;
725 state->watch_stereo = 1;
727 case 0x0020: /* BTSC */
728 /* The pre-'G' models only have BTSC-mono */
729 state->mode = MSP_MODE_BTSC;
730 state->rxsubchans = V4L2_TUNER_SUB_MONO;
732 case 0x0040: /* FM radio */
733 state->mode = MSP_MODE_FM_RADIO;
734 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
735 /* not needed in theory if we have radio, but
736 short programming enables carrier mute */
737 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
738 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
740 /* scart routing (this doesn't belong here I think) */
741 msp_set_scart(client,SCART_IN2,0);
747 state->mode = MSP_MODE_FM_TERRA;
748 state->rxsubchans = V4L2_TUNER_SUB_MONO;
749 state->watch_stereo = 1;
753 /* set various prescales */
754 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
755 msp_write_dsp(client, 0x0e, 0x3000); /* FM */
756 if (state->has_nicam)
757 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
759 if (state->has_i2s_conf)
760 msp_write_dem(client, 0x40, state->i2s_mode);
762 /* unmute, restore misc registers */
763 msp_set_audio(client);
765 msp_write_dsp(client, 0x13, state->acb);
766 msp3400c_set_audmode(client);
768 /* monitor tv audio mode, the first time don't wait
769 so long to get a quick stereo/bilingual result */
770 if (msp_sleep(state, 1000))
772 while (state->watch_stereo) {
773 watch_stereo(client);
774 if (msp_sleep(state, 5000))
778 v4l_dbg(1, msp_debug, client, "thread: exit\n");
782 /* ----------------------------------------------------------------------- */
784 /* msp34xxG + (autoselect no-thread)
785 * this one uses both automatic standard detection and automatic sound
786 * select which are available in the newer G versions
787 * struct msp: only norm, acb and source are really used in this mode
790 static int msp34xxg_modus(struct i2c_client *client)
792 struct msp_state *state = i2c_get_clientdata(client);
795 v4l_dbg(1, msp_debug, client, "selected radio modus\n");
799 if (state->v4l2_std & V4L2_STD_PAL) {
800 v4l_dbg(1, msp_debug, client, "selected PAL modus\n");
803 if (state->v4l2_std == V4L2_STD_NTSC_M_JP) {
804 v4l_dbg(1, msp_debug, client, "selected M (EIA-J) modus\n");
807 if (state->v4l2_std == V4L2_STD_NTSC_M_KR) {
808 v4l_dbg(1, msp_debug, client, "selected M (A2) modus\n");
811 if (state->v4l2_std & V4L2_STD_MN) {
812 v4l_dbg(1, msp_debug, client, "selected M (BTSC) modus\n");
815 if (state->v4l2_std & V4L2_STD_SECAM) {
816 v4l_dbg(1, msp_debug, client, "selected SECAM modus\n");
822 static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in)
824 struct msp_state *state = i2c_get_clientdata(client);
827 switch (state->audmode) {
828 case V4L2_TUNER_MODE_MONO:
829 source = 0; /* mono only */
832 case V4L2_TUNER_MODE_LANG1:
833 source = 3; /* stereo or A */
836 case V4L2_TUNER_MODE_LANG2:
837 source = 4; /* stereo or B */
840 case V4L2_TUNER_MODE_STEREO:
841 case V4L2_TUNER_MODE_LANG1_LANG2:
843 source = 1; /* stereo or A|B */
848 if (in == MSP_DSP_OUT_TUNER)
849 source = (source << 8) | 0x20;
850 /* the msp34x2g puts the MAIN_AVC, MAIN and AUX sources in 12, 13, 14
851 instead of 11, 12, 13. So we add one for that msp version. */
852 else if (in >= MSP_DSP_OUT_MAIN_AVC && state->has_dolby_pro_logic)
853 source = ((in + 1) << 8) | matrix;
855 source = (in << 8) | matrix;
857 v4l_dbg(1, msp_debug, client, "set source to %d (0x%x) for output %02x\n",
859 msp_write_dsp(client, reg, source);
862 static void msp34xxg_set_sources(struct i2c_client *client)
864 struct msp_state *state = i2c_get_clientdata(client);
865 u32 in = state->routing.input;
867 msp34xxg_set_source(client, 0x0008, (in >> 4) & 0xf);
868 /* quasi-peak detector is set to same input as the loudspeaker (MAIN) */
869 msp34xxg_set_source(client, 0x000c, (in >> 4) & 0xf);
870 msp34xxg_set_source(client, 0x0009, (in >> 8) & 0xf);
871 msp34xxg_set_source(client, 0x000a, (in >> 12) & 0xf);
872 if (state->has_scart23_in_scart2_out)
873 msp34xxg_set_source(client, 0x0041, (in >> 16) & 0xf);
874 msp34xxg_set_source(client, 0x000b, (in >> 20) & 0xf);
877 /* (re-)initialize the msp34xxg */
878 static void msp34xxg_reset(struct i2c_client *client)
880 struct msp_state *state = i2c_get_clientdata(client);
881 int tuner = (state->routing.input >> 3) & 1;
884 /* initialize std to 1 (autodetect) to signal that no standard is
890 /* make sure that input/output is muted (paranoid mode) */
891 /* ACB, mute DSP input, mute SCART 1 */
892 msp_write_dsp(client, 0x13, 0x0f20);
894 if (state->has_i2s_conf)
895 msp_write_dem(client, 0x40, state->i2s_mode);
897 /* step-by-step initialisation, as described in the manual */
898 modus = msp34xxg_modus(client);
899 modus |= tuner ? 0x100 : 0;
900 msp_write_dem(client, 0x30, modus);
902 /* write the dsps that may have an influence on
903 standard/audio autodetection right now */
904 msp34xxg_set_sources(client);
906 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
907 msp_write_dsp(client, 0x0e, 0x3000); /* FM */
908 if (state->has_nicam)
909 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
911 /* set identification threshold. Personally, I
912 * I set it to a higher value than the default
913 * of 0x190 to ignore noisy stereo signals.
914 * this needs tuning. (recommended range 0x00a0-0x03c0)
915 * 0x7f0 = forced mono mode
917 * a2 threshold for stereo/bilingual.
918 * Note: this register is part of the Manual/Compatibility mode.
919 * It is supported by all 'G'-family chips.
921 msp_write_dem(client, 0x22, msp_stereo_thresh);
924 int msp34xxg_thread(void *data)
926 struct i2c_client *client = data;
927 struct msp_state *state = i2c_get_clientdata(client);
930 v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n");
933 v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n");
934 msp_sleep(state, -1);
935 v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n");
938 v4l_dbg(1, msp_debug, client, "thread: restart scan\n");
940 if (kthread_should_stop())
944 msp34xxg_reset(client);
945 state->std = state->radio ? 0x40 : msp_standard;
948 /* start autodetect */
949 msp_write_dem(client, 0x20, state->std);
951 /* watch autodetect */
952 v4l_dbg(1, msp_debug, client, "started autodetect, waiting for result\n");
953 for (i = 0; i < 10; i++) {
954 if (msp_sleep(state, 100))
958 val = msp_read_dem(client, 0x7e);
963 v4l_dbg(2, msp_debug, client, "detection still in progress\n");
965 if (state->std == 1) {
966 v4l_dbg(1, msp_debug, client, "detection still in progress after 10 tries. giving up.\n");
971 v4l_dbg(1, msp_debug, client, "detected standard: %s (0x%04x)\n",
972 msp_standard_std_name(state->std), state->std);
974 /* unmute: dispatch sound to scart output, set scart volume */
975 msp_set_audio(client);
978 if (msp_write_dsp(client, 0x13, state->acb))
981 /* the periodic stereo/SAP check is only relevant for
982 the 0x20 standard (BTSC) */
983 if (state->std != 0x20)
986 state->watch_stereo = 1;
988 /* monitor tv audio mode, the first time don't wait
989 in order to get a quick stereo/SAP update */
990 watch_stereo(client);
991 while (state->watch_stereo) {
992 watch_stereo(client);
993 if (msp_sleep(state, 5000))
997 v4l_dbg(1, msp_debug, client, "thread: exit\n");
1001 static int msp34xxg_detect_stereo(struct i2c_client *client)
1003 struct msp_state *state = i2c_get_clientdata(client);
1004 int status = msp_read_dem(client, 0x0200);
1005 int is_bilingual = status & 0x100;
1006 int is_stereo = status & 0x40;
1007 int oldrx = state->rxsubchans;
1009 state->rxsubchans = 0;
1011 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
1013 state->rxsubchans = V4L2_TUNER_SUB_MONO;
1015 if (state->std == 0x20)
1016 state->rxsubchans |= V4L2_TUNER_SUB_SAP;
1018 state->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1020 v4l_dbg(1, msp_debug, client, "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
1021 status, is_stereo, is_bilingual, state->rxsubchans);
1022 return (oldrx != state->rxsubchans);
1025 static void msp34xxg_set_audmode(struct i2c_client *client)
1027 struct msp_state *state = i2c_get_clientdata(client);
1029 if (state->std == 0x20) {
1030 if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) &&
1031 (state->audmode == V4L2_TUNER_MODE_STEREO ||
1032 state->audmode == V4L2_TUNER_MODE_LANG2)) {
1033 msp_write_dem(client, 0x20, 0x21);
1035 msp_write_dem(client, 0x20, 0x20);
1039 msp34xxg_set_sources(client);
1042 void msp_set_audmode(struct i2c_client *client)
1044 struct msp_state *state = i2c_get_clientdata(client);
1046 switch (state->opmode) {
1048 case OPMODE_AUTODETECT:
1049 msp3400c_set_audmode(client);
1051 case OPMODE_AUTOSELECT:
1052 msp34xxg_set_audmode(client);
1057 int msp_detect_stereo(struct i2c_client *client)
1059 struct msp_state *state = i2c_get_clientdata(client);
1061 switch (state->opmode) {
1063 case OPMODE_AUTODETECT:
1064 return msp3400c_detect_stereo(client);
1065 case OPMODE_AUTOSELECT:
1066 return msp34xxg_detect_stereo(client);