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.
18 #include <linux/kernel.h>
19 #include <linux/module.h>
20 #include <linux/i2c.h>
21 #include <linux/freezer.h>
22 #include <linux/videodev2.h>
23 #include <media/v4l2-common.h>
24 #include <media/drv-intf/msp3400.h>
25 #include <linux/kthread.h>
26 #include <linux/suspend.h>
27 #include "msp3400-driver.h"
29 /* this one uses the automatic sound standard detection of newer msp34xx
37 { 0x0000, 0, 0, "could not detect sound standard", V4L2_STD_ALL },
38 { 0x0001, 0, 0, "autodetect start", V4L2_STD_ALL },
39 { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72),
40 "4.5/4.72 M Dual FM-Stereo", V4L2_STD_MN },
41 { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875),
42 "5.5/5.74 B/G Dual FM-Stereo", V4L2_STD_BG },
43 { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125),
44 "6.5/6.25 D/K1 Dual FM-Stereo", V4L2_STD_DK },
45 { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875),
46 "6.5/6.74 D/K2 Dual FM-Stereo", V4L2_STD_DK },
47 { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5),
48 "6.5 D/K FM-Mono (HDEV3)", V4L2_STD_DK },
49 { 0x0007, MSP_CARRIER(6.5), MSP_CARRIER(5.7421875),
50 "6.5/5.74 D/K3 Dual FM-Stereo", V4L2_STD_DK },
51 { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85),
52 "5.5/5.85 B/G NICAM FM", V4L2_STD_BG },
53 { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85),
54 "6.5/5.85 L NICAM AM", V4L2_STD_L },
55 { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55),
56 "6.0/6.55 I NICAM FM", V4L2_STD_PAL_I },
57 { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85),
58 "6.5/5.85 D/K NICAM FM", V4L2_STD_DK },
59 { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85),
60 "6.5/5.85 D/K NICAM FM (HDEV2)", V4L2_STD_DK },
61 { 0x000d, MSP_CARRIER(6.5), MSP_CARRIER(5.85),
62 "6.5/5.85 D/K NICAM FM (HDEV3)", V4L2_STD_DK },
63 { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5),
64 "4.5 M BTSC-Stereo", V4L2_STD_MTS },
65 { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5),
66 "4.5 M BTSC-Mono + SAP", V4L2_STD_MTS },
67 { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5),
68 "4.5 M EIA-J Japan Stereo", V4L2_STD_NTSC_M_JP },
69 { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7),
70 "10.7 FM-Stereo Radio", V4L2_STD_ALL },
71 { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5),
72 "6.5 SAT-Mono", V4L2_STD_ALL },
73 { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20),
74 "7.02/7.20 SAT-Stereo", V4L2_STD_ALL },
75 { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2),
76 "7.2 SAT ADR", V4L2_STD_ALL },
77 { -1, 0, 0, NULL, 0 }, /* EOF */
80 static struct msp3400c_init_data_dem {
89 } msp3400c_init_data[] = {
90 { /* AM (for carrier detect / msp3400) */
91 {75, 19, 36, 35, 39, 40},
92 {75, 19, 36, 35, 39, 40},
93 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
94 0x00d0, 0x0500, 0x0020, 0x3000
95 }, { /* AM (for carrier detect / msp3410) */
96 {-1, -1, -8, 2, 59, 126},
97 {-1, -1, -8, 2, 59, 126},
98 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
99 0x00d0, 0x0100, 0x0020, 0x3000
101 {-8, -8, 4, 6, 78, 107},
102 {-8, -8, 4, 6, 78, 107},
103 MSP_CARRIER(10.7), MSP_CARRIER(10.7),
104 0x00d0, 0x0480, 0x0020, 0x3000
105 }, { /* Terrestrial FM-mono + FM-stereo */
106 {3, 18, 27, 48, 66, 72},
107 {3, 18, 27, 48, 66, 72},
108 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
109 0x00d0, 0x0480, 0x0030, 0x3000
110 }, { /* Sat FM-mono */
111 { 1, 9, 14, 24, 33, 37},
112 { 3, 18, 27, 48, 66, 72},
113 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
114 0x00c6, 0x0480, 0x0000, 0x3000
115 }, { /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */
116 {-2, -8, -10, 10, 50, 86},
117 {3, 18, 27, 48, 66, 72},
118 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
119 0x00d0, 0x0040, 0x0120, 0x3000
120 }, { /* NICAM/FM -- I (6.0/6.552) */
121 {2, 4, -6, -4, 40, 94},
122 {3, 18, 27, 48, 66, 72},
123 MSP_CARRIER(6.0), MSP_CARRIER(6.0),
124 0x00d0, 0x0040, 0x0120, 0x3000
125 }, { /* NICAM/AM -- L (6.5/5.85) */
126 {-2, -8, -10, 10, 50, 86},
127 {-4, -12, -9, 23, 79, 126},
128 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
129 0x00c6, 0x0140, 0x0120, 0x7c00
133 struct msp3400c_carrier_detect {
138 static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = {
140 { MSP_CARRIER(4.5), "4.5 NTSC" },
141 { MSP_CARRIER(5.5), "5.5 PAL B/G" },
142 { MSP_CARRIER(6.0), "6.0 PAL I" },
143 { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" }
146 static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = {
148 { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" },
149 { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" }
152 static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = {
153 /* PAL SAT / SECAM */
154 { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" },
155 { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" },
156 { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" },
157 { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" },
158 { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" },
159 { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" },
162 /* ------------------------------------------------------------------------ */
164 const char *msp_standard_std_name(int std)
168 for (i = 0; msp_stdlist[i].name != NULL; i++)
169 if (msp_stdlist[i].retval == std)
170 return msp_stdlist[i].name;
174 static v4l2_std_id msp_standard_std(int std)
178 for (i = 0; msp_stdlist[i].name != NULL; i++)
179 if (msp_stdlist[i].retval == std)
180 return msp_stdlist[i].std;
184 static void msp_set_source(struct i2c_client *client, u16 src)
186 struct msp_state *state = to_state(i2c_get_clientdata(client));
189 msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */
190 msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */
192 msp_write_dsp(client, 0x0008, src);
193 msp_write_dsp(client, 0x0009, src);
195 msp_write_dsp(client, 0x000a, src);
196 msp_write_dsp(client, 0x000b, src);
197 msp_write_dsp(client, 0x000c, src);
198 if (state->has_scart2_out)
199 msp_write_dsp(client, 0x0041, src);
202 void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2)
204 msp_write_dem(client, 0x0093, cdo1 & 0xfff);
205 msp_write_dem(client, 0x009b, cdo1 >> 12);
206 msp_write_dem(client, 0x00a3, cdo2 & 0xfff);
207 msp_write_dem(client, 0x00ab, cdo2 >> 12);
208 msp_write_dem(client, 0x0056, 0); /* LOAD_REG_1/2 */
211 void msp3400c_set_mode(struct i2c_client *client, int mode)
213 struct msp_state *state = to_state(i2c_get_clientdata(client));
214 struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode];
215 int tuner = (state->route_in >> 3) & 1;
218 dev_dbg_lvl(&client->dev, 1, msp_debug, "set_mode: %d\n", mode);
220 state->rxsubchans = V4L2_TUNER_SUB_MONO;
222 msp_write_dem(client, 0x00bb, data->ad_cv | (tuner ? 0x100 : 0));
224 for (i = 5; i >= 0; i--) /* fir 1 */
225 msp_write_dem(client, 0x0001, data->fir1[i]);
227 msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */
228 msp_write_dem(client, 0x0005, 0x0040);
229 msp_write_dem(client, 0x0005, 0x0000);
230 for (i = 5; i >= 0; i--)
231 msp_write_dem(client, 0x0005, data->fir2[i]);
233 msp_write_dem(client, 0x0083, data->mode_reg);
235 msp3400c_set_carrier(client, data->cdo1, data->cdo2);
237 msp_set_source(client, data->dsp_src);
240 /* volume prescale for SCART (AM mono input) */
241 msp_write_dsp(client, 0x000d, 0x1900);
242 msp_write_dsp(client, 0x000e, data->dsp_matrix);
243 if (state->has_nicam) /* nicam prescale */
244 msp_write_dsp(client, 0x0010, 0x5a00);
247 /* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP,
248 nor do they support stereo BTSC. */
249 static void msp3400c_set_audmode(struct i2c_client *client)
251 static char *strmode[] = {
252 "mono", "stereo", "lang2", "lang1", "lang1+lang2"
254 struct msp_state *state = to_state(i2c_get_clientdata(client));
255 char *modestr = (state->audmode >= 0 && state->audmode < 5) ?
256 strmode[state->audmode] : "unknown";
257 int src = 0; /* channel source: FM/AM, nicam or SCART */
258 int audmode = state->audmode;
260 if (state->opmode == OPMODE_AUTOSELECT) {
261 /* this method would break everything, let's make sure
264 dev_dbg_lvl(&client->dev, 1, msp_debug,
265 "set_audmode called with mode=%d instead of set_source (ignored)\n",
270 /* Note: for the C and D revs no NTSC stereo + SAP is possible as
271 the hardware does not support SAP. So the rxsubchans combination
272 of STEREO | LANG2 does not occur. */
274 if (state->mode != MSP_MODE_EXTERN) {
275 /* switch to mono if only mono is available */
276 if (state->rxsubchans == V4L2_TUNER_SUB_MONO)
277 audmode = V4L2_TUNER_MODE_MONO;
279 else if (state->rxsubchans & V4L2_TUNER_SUB_LANG2) {
280 /* and mono or stereo, then fallback to lang1 */
281 if (audmode == V4L2_TUNER_MODE_MONO ||
282 audmode == V4L2_TUNER_MODE_STEREO)
283 audmode = V4L2_TUNER_MODE_LANG1;
285 /* if stereo, and audmode is not mono, then switch to stereo */
286 else if (audmode != V4L2_TUNER_MODE_MONO)
287 audmode = V4L2_TUNER_MODE_STEREO;
290 /* switch demodulator */
291 switch (state->mode) {
292 case MSP_MODE_FM_TERRA:
293 dev_dbg_lvl(&client->dev, 1, msp_debug, "FM set_audmode: %s\n", modestr);
295 case V4L2_TUNER_MODE_STEREO:
296 msp_write_dsp(client, 0x000e, 0x3001);
298 case V4L2_TUNER_MODE_MONO:
299 case V4L2_TUNER_MODE_LANG1:
300 case V4L2_TUNER_MODE_LANG2:
301 case V4L2_TUNER_MODE_LANG1_LANG2:
302 msp_write_dsp(client, 0x000e, 0x3000);
306 case MSP_MODE_FM_SAT:
307 dev_dbg_lvl(&client->dev, 1, msp_debug, "SAT set_audmode: %s\n", modestr);
309 case V4L2_TUNER_MODE_MONO:
310 msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
312 case V4L2_TUNER_MODE_STEREO:
313 case V4L2_TUNER_MODE_LANG1_LANG2:
314 msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
316 case V4L2_TUNER_MODE_LANG1:
317 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
319 case V4L2_TUNER_MODE_LANG2:
320 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
324 case MSP_MODE_FM_NICAM1:
325 case MSP_MODE_FM_NICAM2:
326 case MSP_MODE_AM_NICAM:
327 dev_dbg_lvl(&client->dev, 1, msp_debug,
328 "NICAM set_audmode: %s\n", modestr);
330 src = 0x0100; /* NICAM */
333 dev_dbg_lvl(&client->dev, 1, msp_debug,
334 "BTSC set_audmode: %s\n", modestr);
336 case MSP_MODE_EXTERN:
337 dev_dbg_lvl(&client->dev, 1, msp_debug,
338 "extern set_audmode: %s\n", modestr);
339 src = 0x0200; /* SCART */
341 case MSP_MODE_FM_RADIO:
342 dev_dbg_lvl(&client->dev, 1, msp_debug,
343 "FM-Radio set_audmode: %s\n", modestr);
346 dev_dbg_lvl(&client->dev, 1, msp_debug, "mono set_audmode\n");
351 dev_dbg_lvl(&client->dev, 1, msp_debug, "set audmode %d\n", audmode);
353 case V4L2_TUNER_MODE_STEREO:
354 case V4L2_TUNER_MODE_LANG1_LANG2:
357 case V4L2_TUNER_MODE_MONO:
358 if (state->mode == MSP_MODE_AM_NICAM) {
359 dev_dbg_lvl(&client->dev, 1, msp_debug, "switching to AM mono\n");
360 /* AM mono decoding is handled by tuner, not MSP chip */
361 /* SCART switching control register */
362 msp_set_scart(client, SCART_MONO, 0);
366 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
369 case V4L2_TUNER_MODE_LANG1:
371 case V4L2_TUNER_MODE_LANG2:
375 dev_dbg_lvl(&client->dev, 1, msp_debug,
376 "set_audmode final source/matrix = 0x%x\n", src);
378 msp_set_source(client, src);
381 static void msp3400c_print_mode(struct i2c_client *client)
383 struct msp_state *state = to_state(i2c_get_clientdata(client));
385 if (state->main == state->second)
386 dev_dbg_lvl(&client->dev, 1, msp_debug,
387 "mono sound carrier: %d.%03d MHz\n",
388 state->main / 910000, (state->main / 910) % 1000);
390 dev_dbg_lvl(&client->dev, 1, msp_debug,
391 "main sound carrier: %d.%03d MHz\n",
392 state->main / 910000, (state->main / 910) % 1000);
393 if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2)
394 dev_dbg_lvl(&client->dev, 1, msp_debug,
395 "NICAM/FM carrier : %d.%03d MHz\n",
396 state->second / 910000, (state->second/910) % 1000);
397 if (state->mode == MSP_MODE_AM_NICAM)
398 dev_dbg_lvl(&client->dev, 1, msp_debug,
399 "NICAM/AM carrier : %d.%03d MHz\n",
400 state->second / 910000, (state->second / 910) % 1000);
401 if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) {
402 dev_dbg_lvl(&client->dev, 1, msp_debug,
403 "FM-stereo carrier : %d.%03d MHz\n",
404 state->second / 910000, (state->second / 910) % 1000);
408 /* ----------------------------------------------------------------------- */
410 static int msp3400c_detect_stereo(struct i2c_client *client)
412 struct msp_state *state = to_state(i2c_get_clientdata(client));
414 int rxsubchans = state->rxsubchans;
415 int newnicam = state->nicam_on;
418 switch (state->mode) {
419 case MSP_MODE_FM_TERRA:
420 val = msp_read_dsp(client, 0x18);
423 dev_dbg_lvl(&client->dev, 2, msp_debug,
424 "stereo detect register: %d\n", val);
426 rxsubchans = V4L2_TUNER_SUB_STEREO;
427 } else if (val < -4096) {
428 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
430 rxsubchans = V4L2_TUNER_SUB_MONO;
434 case MSP_MODE_FM_NICAM1:
435 case MSP_MODE_FM_NICAM2:
436 case MSP_MODE_AM_NICAM:
437 val = msp_read_dem(client, 0x23);
438 dev_dbg_lvl(&client->dev, 2, msp_debug, "nicam sync=%d, mode=%d\n",
439 val & 1, (val & 0x1e) >> 1);
443 switch ((val & 0x1e) >> 1) {
446 rxsubchans = V4L2_TUNER_SUB_STEREO;
450 rxsubchans = V4L2_TUNER_SUB_MONO;
454 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
457 rxsubchans = V4L2_TUNER_SUB_MONO;
463 rxsubchans = V4L2_TUNER_SUB_MONO;
467 if (rxsubchans != state->rxsubchans) {
469 dev_dbg_lvl(&client->dev, 1, msp_debug,
470 "watch: rxsubchans %02x => %02x\n",
471 state->rxsubchans, rxsubchans);
472 state->rxsubchans = rxsubchans;
474 if (newnicam != state->nicam_on) {
476 dev_dbg_lvl(&client->dev, 1, msp_debug, "watch: nicam %d => %d\n",
477 state->nicam_on, newnicam);
478 state->nicam_on = newnicam;
484 * A kernel thread for msp3400 control -- we don't want to block the
485 * in the ioctl while doing the sound carrier & stereo detect
487 /* stereo/multilang monitoring */
488 static void watch_stereo(struct i2c_client *client)
490 struct msp_state *state = to_state(i2c_get_clientdata(client));
492 if (msp_detect_stereo(client))
493 msp_set_audmode(client);
496 state->watch_stereo = 0;
499 int msp3400c_thread(void *data)
501 struct i2c_client *client = data;
502 struct msp_state *state = to_state(i2c_get_clientdata(client));
503 struct msp3400c_carrier_detect *cd;
504 int count, max1, max2, val1, val2, val, i;
506 dev_dbg_lvl(&client->dev, 1, msp_debug, "msp3400 daemon started\n");
507 state->detected_std = V4L2_STD_ALL;
510 dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3400 thread: sleep\n");
511 msp_sleep(state, -1);
512 dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3400 thread: wakeup\n");
515 dev_dbg_lvl(&client->dev, 2, msp_debug, "thread: restart scan\n");
517 if (kthread_should_stop())
520 if (state->radio || MSP_MODE_EXTERN == state->mode) {
521 /* no carrier scan, just unmute */
522 dev_dbg_lvl(&client->dev, 1, msp_debug,
523 "thread: no carrier scan\n");
524 state->scan_in_progress = 0;
525 msp_update_volume(state);
530 state->scan_in_progress = 1;
531 msp_update_volume(state);
533 msp3400c_set_mode(client, MSP_MODE_AM_DETECT);
536 state->watch_stereo = 0;
539 /* wait for tuner to settle down after a channel change */
540 if (msp_sleep(state, 200))
543 /* carrier detect pass #1 -- main carrier */
544 cd = msp3400c_carrier_detect_main;
545 count = ARRAY_SIZE(msp3400c_carrier_detect_main);
547 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
548 /* autodetect doesn't work well with AM ... */
551 dev_dbg_lvl(&client->dev, 1, msp_debug, "AM sound override\n");
554 for (i = 0; i < count; i++) {
555 msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo);
556 if (msp_sleep(state, 100))
558 val = msp_read_dsp(client, 0x1b);
562 val1 = val, max1 = i;
563 dev_dbg_lvl(&client->dev, 1, msp_debug,
564 "carrier1 val: %5d / %s\n", val, cd[i].name);
567 /* carrier detect pass #2 -- second (stereo) carrier */
570 cd = msp3400c_carrier_detect_55;
571 count = ARRAY_SIZE(msp3400c_carrier_detect_55);
574 cd = msp3400c_carrier_detect_65;
575 count = ARRAY_SIZE(msp3400c_carrier_detect_65);
585 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
586 /* autodetect doesn't work well with AM ... */
591 for (i = 0; i < count; i++) {
592 msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo);
593 if (msp_sleep(state, 100))
595 val = msp_read_dsp(client, 0x1b);
599 val2 = val, max2 = i;
600 dev_dbg_lvl(&client->dev, 1, msp_debug,
601 "carrier2 val: %5d / %s\n", val, cd[i].name);
604 /* program the msp3400 according to the results */
605 state->main = msp3400c_carrier_detect_main[max1].cdo;
608 state->detected_std = V4L2_STD_BG | V4L2_STD_PAL_H;
611 state->second = msp3400c_carrier_detect_55[max2].cdo;
612 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
613 state->watch_stereo = 1;
614 } else if (max2 == 1 && state->has_nicam) {
616 state->second = msp3400c_carrier_detect_55[max2].cdo;
617 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
619 state->watch_stereo = 1;
626 state->detected_std = V4L2_STD_PAL_I;
627 state->second = MSP_CARRIER(6.552);
628 msp3400c_set_mode(client, MSP_MODE_FM_NICAM2);
630 state->watch_stereo = 1;
633 if (max2 == 1 || max2 == 2) {
635 state->second = msp3400c_carrier_detect_65[max2].cdo;
636 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
637 state->watch_stereo = 1;
638 state->detected_std = V4L2_STD_DK;
639 } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) {
640 /* L NICAM or AM-mono */
641 state->second = msp3400c_carrier_detect_65[max2].cdo;
642 msp3400c_set_mode(client, MSP_MODE_AM_NICAM);
643 state->watch_stereo = 1;
644 state->detected_std = V4L2_STD_L;
645 } else if (max2 == 0 && state->has_nicam) {
647 state->second = msp3400c_carrier_detect_65[max2].cdo;
648 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
650 state->watch_stereo = 1;
651 state->detected_std = V4L2_STD_DK;
657 state->detected_std = V4L2_STD_MN;
660 state->second = msp3400c_carrier_detect_main[max1].cdo;
661 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
664 msp3400c_set_carrier(client, state->second, state->main);
667 state->scan_in_progress = 0;
668 msp3400c_set_audmode(client);
669 msp_update_volume(state);
672 msp3400c_print_mode(client);
674 /* monitor tv audio mode, the first time don't wait
675 so long to get a quick stereo/bilingual result */
677 while (state->watch_stereo) {
678 if (msp_sleep(state, count ? 1000 : 5000))
682 watch_stereo(client);
685 dev_dbg_lvl(&client->dev, 1, msp_debug, "thread: exit\n");
690 int msp3410d_thread(void *data)
692 struct i2c_client *client = data;
693 struct msp_state *state = to_state(i2c_get_clientdata(client));
694 int val, i, std, count;
696 dev_dbg_lvl(&client->dev, 1, msp_debug, "msp3410 daemon started\n");
697 state->detected_std = V4L2_STD_ALL;
700 dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3410 thread: sleep\n");
701 msp_sleep(state, -1);
702 dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3410 thread: wakeup\n");
705 dev_dbg_lvl(&client->dev, 2, msp_debug, "thread: restart scan\n");
707 if (kthread_should_stop())
710 if (state->mode == MSP_MODE_EXTERN) {
711 /* no carrier scan needed, just unmute */
712 dev_dbg_lvl(&client->dev, 1, msp_debug,
713 "thread: no carrier scan\n");
714 state->scan_in_progress = 0;
715 msp_update_volume(state);
720 state->scan_in_progress = 1;
721 msp_update_volume(state);
723 /* start autodetect. Note: autodetect is not supported for
724 NTSC-M and radio, hence we force the standard in those
729 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1;
730 state->watch_stereo = 0;
733 /* wait for tuner to settle down after a channel change */
734 if (msp_sleep(state, 200))
738 dev_dbg_lvl(&client->dev, 2, msp_debug,
739 "setting standard: %s (0x%04x)\n",
740 msp_standard_std_name(std), std);
743 /* programmed some specific mode */
746 /* triggered autodetect */
747 msp_write_dem(client, 0x20, std);
749 if (msp_sleep(state, 100))
753 val = msp_read_dem(client, 0x7e);
756 dev_dbg_lvl(&client->dev, 2, msp_debug,
757 "detection still in progress\n");
760 for (i = 0; msp_stdlist[i].name != NULL; i++)
761 if (msp_stdlist[i].retval == val)
763 dev_dbg_lvl(&client->dev, 1, msp_debug, "current standard: %s (0x%04x)\n",
764 msp_standard_std_name(val), val);
765 state->main = msp_stdlist[i].main;
766 state->second = msp_stdlist[i].second;
768 state->rxsubchans = V4L2_TUNER_SUB_MONO;
770 if (msp_amsound && !state->radio &&
771 (state->v4l2_std & V4L2_STD_SECAM) && (val != 0x0009)) {
772 /* autodetection has failed, let backup */
773 dev_dbg_lvl(&client->dev, 1, msp_debug, "autodetection failed, switching to backup standard: %s (0x%04x)\n",
774 msp_stdlist[8].name ?
775 msp_stdlist[8].name : "unknown", val);
776 state->std = val = 0x0009;
777 msp_write_dem(client, 0x20, val);
779 state->detected_std = msp_standard_std(state->std);
784 case 0x0008: /* B/G NICAM */
785 case 0x000a: /* I NICAM */
786 case 0x000b: /* D/K NICAM */
788 state->mode = MSP_MODE_FM_NICAM2;
790 state->mode = MSP_MODE_FM_NICAM1;
791 /* just turn on stereo */
793 state->watch_stereo = 1;
796 state->mode = MSP_MODE_AM_NICAM;
798 state->watch_stereo = 1;
800 case 0x0020: /* BTSC */
801 /* The pre-'G' models only have BTSC-mono */
802 state->mode = MSP_MODE_BTSC;
804 case 0x0040: /* FM radio */
805 state->mode = MSP_MODE_FM_RADIO;
806 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
807 /* not needed in theory if we have radio, but
808 short programming enables carrier mute */
809 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
810 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
817 state->mode = MSP_MODE_FM_TERRA;
818 state->watch_stereo = 1;
822 /* set various prescales */
823 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
824 msp_write_dsp(client, 0x0e, 0x3000); /* FM */
825 if (state->has_nicam)
826 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
828 if (state->has_i2s_conf)
829 msp_write_dem(client, 0x40, state->i2s_mode);
832 msp3400c_set_audmode(client);
833 state->scan_in_progress = 0;
834 msp_update_volume(state);
836 /* monitor tv audio mode, the first time don't wait
837 so long to get a quick stereo/bilingual result */
839 while (state->watch_stereo) {
840 if (msp_sleep(state, count ? 1000 : 5000))
844 watch_stereo(client);
847 dev_dbg_lvl(&client->dev, 1, msp_debug, "thread: exit\n");
851 /* ----------------------------------------------------------------------- */
853 /* msp34xxG + (autoselect no-thread)
854 * this one uses both automatic standard detection and automatic sound
855 * select which are available in the newer G versions
856 * struct msp: only norm, acb and source are really used in this mode
859 static int msp34xxg_modus(struct i2c_client *client)
861 struct msp_state *state = to_state(i2c_get_clientdata(client));
864 dev_dbg_lvl(&client->dev, 1, msp_debug, "selected radio modus\n");
867 if (state->v4l2_std == V4L2_STD_NTSC_M_JP) {
868 dev_dbg_lvl(&client->dev, 1, msp_debug, "selected M (EIA-J) modus\n");
871 if (state->v4l2_std == V4L2_STD_NTSC_M_KR) {
872 dev_dbg_lvl(&client->dev, 1, msp_debug, "selected M (A2) modus\n");
875 if (state->v4l2_std == V4L2_STD_SECAM_L) {
876 dev_dbg_lvl(&client->dev, 1, msp_debug, "selected SECAM-L modus\n");
879 if (state->v4l2_std & V4L2_STD_MN) {
880 dev_dbg_lvl(&client->dev, 1, msp_debug, "selected M (BTSC) modus\n");
886 static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in)
888 struct msp_state *state = to_state(i2c_get_clientdata(client));
891 switch (state->audmode) {
892 case V4L2_TUNER_MODE_MONO:
893 source = 0; /* mono only */
896 case V4L2_TUNER_MODE_LANG2:
897 source = 4; /* stereo or B */
900 case V4L2_TUNER_MODE_LANG1_LANG2:
901 source = 1; /* stereo or A|B */
904 case V4L2_TUNER_MODE_LANG1:
905 source = 3; /* stereo or A */
908 case V4L2_TUNER_MODE_STEREO:
910 source = 3; /* stereo or A */
915 if (in == MSP_DSP_IN_TUNER)
916 source = (source << 8) | 0x20;
917 /* the msp34x2g puts the MAIN_AVC, MAIN and AUX sources in 12, 13, 14
918 instead of 11, 12, 13. So we add one for that msp version. */
919 else if (in >= MSP_DSP_IN_MAIN_AVC && state->has_dolby_pro_logic)
920 source = ((in + 1) << 8) | matrix;
922 source = (in << 8) | matrix;
924 dev_dbg_lvl(&client->dev, 1, msp_debug,
925 "set source to %d (0x%x) for output %02x\n", in, source, reg);
926 msp_write_dsp(client, reg, source);
929 static void msp34xxg_set_sources(struct i2c_client *client)
931 struct msp_state *state = to_state(i2c_get_clientdata(client));
932 u32 in = state->route_in;
934 msp34xxg_set_source(client, 0x0008, (in >> 4) & 0xf);
935 /* quasi-peak detector is set to same input as the loudspeaker (MAIN) */
936 msp34xxg_set_source(client, 0x000c, (in >> 4) & 0xf);
937 msp34xxg_set_source(client, 0x0009, (in >> 8) & 0xf);
938 msp34xxg_set_source(client, 0x000a, (in >> 12) & 0xf);
939 if (state->has_scart2_out)
940 msp34xxg_set_source(client, 0x0041, (in >> 16) & 0xf);
941 msp34xxg_set_source(client, 0x000b, (in >> 20) & 0xf);
944 /* (re-)initialize the msp34xxg */
945 static void msp34xxg_reset(struct i2c_client *client)
947 struct msp_state *state = to_state(i2c_get_clientdata(client));
948 int tuner = (state->route_in >> 3) & 1;
951 /* initialize std to 1 (autodetect) to signal that no standard is
957 if (state->has_i2s_conf)
958 msp_write_dem(client, 0x40, state->i2s_mode);
960 /* step-by-step initialisation, as described in the manual */
961 modus = msp34xxg_modus(client);
962 modus |= tuner ? 0x100 : 0;
963 msp_write_dem(client, 0x30, modus);
965 /* write the dsps that may have an influence on
966 standard/audio autodetection right now */
967 msp34xxg_set_sources(client);
969 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
970 msp_write_dsp(client, 0x0e, 0x3000); /* FM */
971 if (state->has_nicam)
972 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
974 /* set identification threshold. Personally, I
975 * I set it to a higher value than the default
976 * of 0x190 to ignore noisy stereo signals.
977 * this needs tuning. (recommended range 0x00a0-0x03c0)
978 * 0x7f0 = forced mono mode
980 * a2 threshold for stereo/bilingual.
981 * Note: this register is part of the Manual/Compatibility mode.
982 * It is supported by all 'G'-family chips.
984 msp_write_dem(client, 0x22, msp_stereo_thresh);
987 int msp34xxg_thread(void *data)
989 struct i2c_client *client = data;
990 struct msp_state *state = to_state(i2c_get_clientdata(client));
993 dev_dbg_lvl(&client->dev, 1, msp_debug, "msp34xxg daemon started\n");
994 state->detected_std = V4L2_STD_ALL;
997 dev_dbg_lvl(&client->dev, 2, msp_debug, "msp34xxg thread: sleep\n");
998 msp_sleep(state, -1);
999 dev_dbg_lvl(&client->dev, 2, msp_debug, "msp34xxg thread: wakeup\n");
1002 dev_dbg_lvl(&client->dev, 1, msp_debug, "thread: restart scan\n");
1004 if (kthread_should_stop())
1007 if (state->mode == MSP_MODE_EXTERN) {
1008 /* no carrier scan needed, just unmute */
1009 dev_dbg_lvl(&client->dev, 1, msp_debug,
1010 "thread: no carrier scan\n");
1011 state->scan_in_progress = 0;
1012 msp_update_volume(state);
1017 msp34xxg_reset(client);
1018 state->std = state->radio ? 0x40 :
1019 (state->force_btsc && msp_standard == 1) ? 32 : msp_standard;
1020 msp_write_dem(client, 0x20, state->std);
1021 /* start autodetect */
1022 if (state->std != 1)
1025 /* watch autodetect */
1026 dev_dbg_lvl(&client->dev, 1, msp_debug,
1027 "started autodetect, waiting for result\n");
1028 for (i = 0; i < 10; i++) {
1029 if (msp_sleep(state, 100))
1033 val = msp_read_dem(client, 0x7e);
1038 dev_dbg_lvl(&client->dev, 2, msp_debug,
1039 "detection still in progress\n");
1041 if (state->std == 1) {
1042 dev_dbg_lvl(&client->dev, 1, msp_debug,
1043 "detection still in progress after 10 tries. giving up.\n");
1048 dev_dbg_lvl(&client->dev, 1, msp_debug,
1049 "detected standard: %s (0x%04x)\n",
1050 msp_standard_std_name(state->std), state->std);
1051 state->detected_std = msp_standard_std(state->std);
1053 if (state->std == 9) {
1055 msp_write_dsp(client, 0x0e, 0x7c00);
1058 /* unmute: dispatch sound to scart output, set scart volume */
1059 msp_update_volume(state);
1062 if (msp_write_dsp(client, 0x13, state->acb))
1065 /* the periodic stereo/SAP check is only relevant for
1066 the 0x20 standard (BTSC) */
1067 if (state->std != 0x20)
1070 state->watch_stereo = 1;
1072 /* monitor tv audio mode, the first time don't wait
1073 in order to get a quick stereo/SAP update */
1074 watch_stereo(client);
1075 while (state->watch_stereo) {
1076 watch_stereo(client);
1077 if (msp_sleep(state, 5000))
1081 dev_dbg_lvl(&client->dev, 1, msp_debug, "thread: exit\n");
1085 static int msp34xxg_detect_stereo(struct i2c_client *client)
1087 struct msp_state *state = to_state(i2c_get_clientdata(client));
1088 int status = msp_read_dem(client, 0x0200);
1089 int is_bilingual = status & 0x100;
1090 int is_stereo = status & 0x40;
1091 int oldrx = state->rxsubchans;
1093 if (state->mode == MSP_MODE_EXTERN)
1096 state->rxsubchans = 0;
1098 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
1100 state->rxsubchans = V4L2_TUNER_SUB_MONO;
1102 if (state->std == 0x20)
1103 state->rxsubchans |= V4L2_TUNER_SUB_SAP;
1106 V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1108 dev_dbg_lvl(&client->dev, 1, msp_debug,
1109 "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
1110 status, is_stereo, is_bilingual, state->rxsubchans);
1111 return (oldrx != state->rxsubchans);
1114 static void msp34xxg_set_audmode(struct i2c_client *client)
1116 struct msp_state *state = to_state(i2c_get_clientdata(client));
1118 if (state->std == 0x20) {
1119 if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) &&
1120 (state->audmode == V4L2_TUNER_MODE_LANG1_LANG2 ||
1121 state->audmode == V4L2_TUNER_MODE_LANG2)) {
1122 msp_write_dem(client, 0x20, 0x21);
1124 msp_write_dem(client, 0x20, 0x20);
1128 msp34xxg_set_sources(client);
1131 void msp_set_audmode(struct i2c_client *client)
1133 struct msp_state *state = to_state(i2c_get_clientdata(client));
1135 switch (state->opmode) {
1137 case OPMODE_AUTODETECT:
1138 msp3400c_set_audmode(client);
1140 case OPMODE_AUTOSELECT:
1141 msp34xxg_set_audmode(client);
1146 int msp_detect_stereo(struct i2c_client *client)
1148 struct msp_state *state = to_state(i2c_get_clientdata(client));
1150 switch (state->opmode) {
1152 case OPMODE_AUTODETECT:
1153 return msp3400c_detect_stereo(client);
1154 case OPMODE_AUTOSELECT:
1155 return msp34xxg_detect_stereo(client);