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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
[deliverable/linux.git] / drivers / media / video / msp3400-kthreads.c
CommitLineData
7e8b09ea
HV		 1/*
2 * Programming the mspx4xx sound processor family
3 *
4 * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
5 *
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.
10 *
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.
15 *
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
d52c7385
HV		 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 * 02110-1301, USA.
7e8b09ea
HV		 20 */
21
22
23#include <linux/kernel.h>
24#include <linux/module.h>
25#include <linux/slab.h>
26#include <linux/i2c.h>
83144186 27#include <linux/freezer.h>
7e8b09ea
HV		 28#include <linux/videodev.h>
29#include <linux/videodev2.h>
30#include <media/v4l2-common.h>
49965a80 31#include <media/msp3400.h>
7e8b09ea
HV		 32#include <linux/kthread.h>
33#include <linux/suspend.h>
49965a80 34#include "msp3400-driver.h"
7e8b09ea
HV		 35
36/* this one uses the automatic sound standard detection of newer msp34xx
37 chip versions */
38static struct {
39 int retval;
40 int main, second;
41 char *name;
5af0c8f6 42} msp_stdlist[] = {
7e8b09ea
HV		 43 { 0x0000, 0, 0, "could not detect sound standard" },
44 { 0x0001, 0, 0, "autodetect start" },
45 { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72 M Dual FM-Stereo" },
46 { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74 B/G Dual FM-Stereo" },
47 { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25 D/K1 Dual FM-Stereo" },
48 { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74 D/K2 Dual FM-Stereo" },
49 { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 D/K FM-Mono (HDEV3)" },
de533ccf 50 { 0x0007, MSP_CARRIER(6.5), MSP_CARRIER(5.7421875), "6.5/5.74 D/K3 Dual FM-Stereo" },
7e8b09ea
HV		 51 { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" },
52 { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" },
53 { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" },
54 { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" },
55 { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" },
de533ccf 56 { 0x000d, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV3)" },
7e8b09ea
HV		 57 { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" },
58 { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" },
59 { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" },
60 { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" },
61 { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" },
62 { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" },
63 { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" },
64 { -1, 0, 0, NULL }, /* EOF */
65};
66
67static struct msp3400c_init_data_dem {
68 int fir1[6];
69 int fir2[6];
70 int cdo1;
71 int cdo2;
72 int ad_cv;
73 int mode_reg;
74 int dsp_src;
75 int dsp_matrix;
76} msp3400c_init_data[] = {
77 { /* AM (for carrier detect / msp3400) */
78 {75, 19, 36, 35, 39, 40},
79 {75, 19, 36, 35, 39, 40},
80 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
81 0x00d0, 0x0500, 0x0020, 0x3000
d52c7385 82 }, { /* AM (for carrier detect / msp3410) */
7e8b09ea
HV		 83 {-1, -1, -8, 2, 59, 126},
84 {-1, -1, -8, 2, 59, 126},
85 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
86 0x00d0, 0x0100, 0x0020, 0x3000
d52c7385 87 }, { /* FM Radio */
7e8b09ea
HV		 88 {-8, -8, 4, 6, 78, 107},
89 {-8, -8, 4, 6, 78, 107},
90 MSP_CARRIER(10.7), MSP_CARRIER(10.7),
91 0x00d0, 0x0480, 0x0020, 0x3000
d52c7385 92 }, { /* Terrestial FM-mono + FM-stereo */
7e8b09ea
HV		 93 {3, 18, 27, 48, 66, 72},
94 {3, 18, 27, 48, 66, 72},
95 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
96 0x00d0, 0x0480, 0x0030, 0x3000
d52c7385 97 }, { /* Sat FM-mono */
7e8b09ea
HV		 98 { 1, 9, 14, 24, 33, 37},
99 { 3, 18, 27, 48, 66, 72},
100 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
101 0x00c6, 0x0480, 0x0000, 0x3000
d52c7385 102 }, { /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */
7e8b09ea
HV		 103 {-2, -8, -10, 10, 50, 86},
104 {3, 18, 27, 48, 66, 72},
105 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
106 0x00d0, 0x0040, 0x0120, 0x3000
d52c7385 107 }, { /* NICAM/FM -- I (6.0/6.552) */
7e8b09ea
HV		 108 {2, 4, -6, -4, 40, 94},
109 {3, 18, 27, 48, 66, 72},
110 MSP_CARRIER(6.0), MSP_CARRIER(6.0),
111 0x00d0, 0x0040, 0x0120, 0x3000
d52c7385 112 }, { /* NICAM/AM -- L (6.5/5.85) */
7e8b09ea
HV		 113 {-2, -8, -10, 10, 50, 86},
114 {-4, -12, -9, 23, 79, 126},
115 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
8a4b275f 116 0x00c6, 0x0140, 0x0120, 0x7c00
7e8b09ea
HV		 117 },
118};
119
120struct msp3400c_carrier_detect {
121 int cdo;
122 char *name;
123};
124
125static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = {
126 /* main carrier */
127 { MSP_CARRIER(4.5), "4.5 NTSC" },
128 { MSP_CARRIER(5.5), "5.5 PAL B/G" },
129 { MSP_CARRIER(6.0), "6.0 PAL I" },
130 { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" }
131};
132
133static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = {
134 /* PAL B/G */
135 { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" },
136 { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" }
137};
138
139static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = {
140 /* PAL SAT / SECAM */
141 { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" },
142 { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" },
143 { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" },
144 { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" },
145 { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" },
146 { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" },
147};
148
149/* ------------------------------------------------------------------------ */
150
5af0c8f6 151const char *msp_standard_std_name(int std)
7e8b09ea
HV		 152{
153 int i;
154
5af0c8f6
HV		 155 for (i = 0; msp_stdlist[i].name != NULL; i++)
156 if (msp_stdlist[i].retval == std)
157 return msp_stdlist[i].name;
7e8b09ea
HV		 158 return "unknown";
159}
160
044f324f 161static void msp_set_source(struct i2c_client *client, u16 src)
8a4b275f
HV		 162{
163 struct msp_state *state = i2c_get_clientdata(client);
164
165 if (msp_dolby) {
166 msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */
167 msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */
168 } else {
169 msp_write_dsp(client, 0x0008, src);
170 msp_write_dsp(client, 0x0009, src);
171 }
172 msp_write_dsp(client, 0x000a, src);
173 msp_write_dsp(client, 0x000b, src);
174 msp_write_dsp(client, 0x000c, src);
0020d3ef 175 if (state->has_scart2_out)
8a4b275f
HV		 176 msp_write_dsp(client, 0x0041, src);
177}
178
179void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2)
7e8b09ea
HV		 180{
181 msp_write_dem(client, 0x0093, cdo1 & 0xfff);
182 msp_write_dem(client, 0x009b, cdo1 >> 12);
183 msp_write_dem(client, 0x00a3, cdo2 & 0xfff);
184 msp_write_dem(client, 0x00ab, cdo2 >> 12);
8a4b275f 185 msp_write_dem(client, 0x0056, 0); /* LOAD_REG_1/2 */
7e8b09ea
HV		 186}
187
8a4b275f 188void msp3400c_set_mode(struct i2c_client *client, int mode)
7e8b09ea
HV		 189{
190 struct msp_state *state = i2c_get_clientdata(client);
8a4b275f 191 struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode];
2474ed44 192 int tuner = (state->routing.input >> 3) & 1;
7e8b09ea
HV		 193 int i;
194
8a4b275f
HV		 195 v4l_dbg(1, msp_debug, client, "set_mode: %d\n", mode);
196 state->mode = mode;
7e8b09ea
HV		 197 state->rxsubchans = V4L2_TUNER_SUB_MONO;
198
2474ed44 199 msp_write_dem(client, 0x00bb, data->ad_cv | (tuner ? 0x100 : 0));
7e8b09ea
HV		 200
201 for (i = 5; i >= 0; i--) /* fir 1 */
8a4b275f 202 msp_write_dem(client, 0x0001, data->fir1[i]);
7e8b09ea
HV		 203
204 msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */
205 msp_write_dem(client, 0x0005, 0x0040);
206 msp_write_dem(client, 0x0005, 0x0000);
207 for (i = 5; i >= 0; i--)
8a4b275f 208 msp_write_dem(client, 0x0005, data->fir2[i]);
7e8b09ea 209
8a4b275f 210 msp_write_dem(client, 0x0083, data->mode_reg);
7e8b09ea 211
8a4b275f 212 msp3400c_set_carrier(client, data->cdo1, data->cdo2);
7e8b09ea 213
8a4b275f 214 msp_set_source(client, data->dsp_src);
de533ccf 215 /* set prescales */
7e8b09ea 216
de533ccf
HV		 217 /* volume prescale for SCART (AM mono input) */
218 msp_write_dsp(client, 0x000d, 0x1900);
219 msp_write_dsp(client, 0x000e, data->dsp_matrix);
220 if (state->has_nicam) /* nicam prescale */
221 msp_write_dsp(client, 0x0010, 0x5a00);
7e8b09ea
HV		 222}
223
8a4b275f
HV		 224/* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP,
225 nor do they support stereo BTSC. */
044f324f 226static void msp3400c_set_audmode(struct i2c_client *client)
7e8b09ea 227{
d52c7385
HV		 228 static char *strmode[] = {
229 "mono", "stereo", "lang2", "lang1", "lang1+lang2"
230 };
7e8b09ea 231 struct msp_state *state = i2c_get_clientdata(client);
301e22d6 232 char *modestr = (state->audmode >= 0 && state->audmode < 5) ?
8a4b275f
HV		 233 strmode[state->audmode] : "unknown";
234 int src = 0; /* channel source: FM/AM, nicam or SCART */
7061561e 235 int audmode = state->audmode;
7e8b09ea
HV		 236
237 if (state->opmode == OPMODE_AUTOSELECT) {
238 /* this method would break everything, let's make sure
239 * it's never called
240 */
8a4b275f
HV		 241 v4l_dbg(1, msp_debug, client,
242 "set_audmode called with mode=%d instead of set_source (ignored)\n",
243 state->audmode);
7e8b09ea
HV		 244 return;
245 }
246
0020d3ef
HV		 247 /* Note: for the C and D revs no NTSC stereo + SAP is possible as
248 the hardware does not support SAP. So the rxsubchans combination
249 of STEREO | LANG2 does not occur. */
250
2eb606db
HV		 251 if (state->mode != MSP_MODE_EXTERN) {
252 /* switch to mono if only mono is available */
253 if (state->rxsubchans == V4L2_TUNER_SUB_MONO)
254 audmode = V4L2_TUNER_MODE_MONO;
255 /* if bilingual */
256 else if (state->rxsubchans & V4L2_TUNER_SUB_LANG2) {
257 /* and mono or stereo, then fallback to lang1 */
258 if (audmode == V4L2_TUNER_MODE_MONO ||
259 audmode == V4L2_TUNER_MODE_STEREO)
260 audmode = V4L2_TUNER_MODE_LANG1;
261 }
262 /* if stereo, and audmode is not mono, then switch to stereo */
263 else if (audmode != V4L2_TUNER_MODE_MONO)
264 audmode = V4L2_TUNER_MODE_STEREO;
0020d3ef 265 }
7061561e 266
7e8b09ea
HV		 267 /* switch demodulator */
268 switch (state->mode) {
269 case MSP_MODE_FM_TERRA:
8a4b275f 270 v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr);
7061561e 271 switch (audmode) {
7e8b09ea
HV		 272 case V4L2_TUNER_MODE_STEREO:
273 msp_write_dsp(client, 0x000e, 0x3001);
274 break;
275 case V4L2_TUNER_MODE_MONO:
276 case V4L2_TUNER_MODE_LANG1:
277 case V4L2_TUNER_MODE_LANG2:
301e22d6 278 case V4L2_TUNER_MODE_LANG1_LANG2:
7e8b09ea
HV		 279 msp_write_dsp(client, 0x000e, 0x3000);
280 break;
281 }
282 break;
283 case MSP_MODE_FM_SAT:
8a4b275f 284 v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr);
7061561e 285 switch (audmode) {
7e8b09ea 286 case V4L2_TUNER_MODE_MONO:
8a4b275f 287 msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
7e8b09ea
HV		 288 break;
289 case V4L2_TUNER_MODE_STEREO:
301e22d6 290 case V4L2_TUNER_MODE_LANG1_LANG2:
8a4b275f 291 msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
7e8b09ea
HV		 292 break;
293 case V4L2_TUNER_MODE_LANG1:
8a4b275f 294 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
7e8b09ea
HV		 295 break;
296 case V4L2_TUNER_MODE_LANG2:
8a4b275f 297 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
7e8b09ea
HV		 298 break;
299 }
300 break;
301 case MSP_MODE_FM_NICAM1:
302 case MSP_MODE_FM_NICAM2:
303 case MSP_MODE_AM_NICAM:
d52c7385
HV		 304 v4l_dbg(1, msp_debug, client,
305 "NICAM set_audmode: %s\n", modestr);
7e8b09ea 306 if (state->nicam_on)
8a4b275f 307 src = 0x0100; /* NICAM */
7e8b09ea
HV		 308 break;
309 case MSP_MODE_BTSC:
d52c7385
HV		 310 v4l_dbg(1, msp_debug, client,
311 "BTSC set_audmode: %s\n", modestr);
7e8b09ea
HV		 312 break;
313 case MSP_MODE_EXTERN:
d52c7385
HV		 314 v4l_dbg(1, msp_debug, client,
315 "extern set_audmode: %s\n", modestr);
8a4b275f 316 src = 0x0200; /* SCART */
7e8b09ea
HV		 317 break;
318 case MSP_MODE_FM_RADIO:
d52c7385
HV		 319 v4l_dbg(1, msp_debug, client,
320 "FM-Radio set_audmode: %s\n", modestr);
7e8b09ea
HV		 321 break;
322 default:
8a4b275f 323 v4l_dbg(1, msp_debug, client, "mono set_audmode\n");
7e8b09ea
HV		 324 return;
325 }
326
327 /* switch audio */
0020d3ef 328 v4l_dbg(1, msp_debug, client, "set audmode %d\n", audmode);
7061561e 329 switch (audmode) {
7e8b09ea 330 case V4L2_TUNER_MODE_STEREO:
301e22d6 331 case V4L2_TUNER_MODE_LANG1_LANG2:
8a4b275f 332 src |= 0x0020;
7e8b09ea
HV		 333 break;
334 case V4L2_TUNER_MODE_MONO:
335 if (state->mode == MSP_MODE_AM_NICAM) {
f167cb4e 336 v4l_dbg(1, msp_debug, client, "switching to AM mono\n");
7e8b09ea
HV		 337 /* AM mono decoding is handled by tuner, not MSP chip */
338 /* SCART switching control register */
339 msp_set_scart(client, SCART_MONO, 0);
340 src = 0x0200;
341 break;
342 }
8a4b275f
HV		 343 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
344 src = 0x0030;
345 break;
7e8b09ea 346 case V4L2_TUNER_MODE_LANG1:
7e8b09ea
HV		 347 break;
348 case V4L2_TUNER_MODE_LANG2:
8a4b275f 349 src |= 0x0010;
7e8b09ea
HV		 350 break;
351 }
d52c7385
HV		 352 v4l_dbg(1, msp_debug, client,
353 "set_audmode final source/matrix = 0x%x\n", src);
7e8b09ea 354
8a4b275f 355 msp_set_source(client, src);
7e8b09ea
HV		 356}
357
358static void msp3400c_print_mode(struct i2c_client *client)
359{
360 struct msp_state *state = i2c_get_clientdata(client);
361
d52c7385
HV		 362 if (state->main == state->second)
363 v4l_dbg(1, msp_debug, client,
364 "mono sound carrier: %d.%03d MHz\n",
365 state->main / 910000, (state->main / 910) % 1000);
366 else
367 v4l_dbg(1, msp_debug, client,
368 "main sound carrier: %d.%03d MHz\n",
369 state->main / 910000, (state->main / 910) % 1000);
7e8b09ea 370 if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2)
d52c7385
HV		 371 v4l_dbg(1, msp_debug, client,
372 "NICAM/FM carrier : %d.%03d MHz\n",
373 state->second / 910000, (state->second/910) % 1000);
7e8b09ea 374 if (state->mode == MSP_MODE_AM_NICAM)
d52c7385
HV		 375 v4l_dbg(1, msp_debug, client,
376 "NICAM/AM carrier : %d.%03d MHz\n",
377 state->second / 910000, (state->second / 910) % 1000);
7e8b09ea 378 if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) {
d52c7385
HV		 379 v4l_dbg(1, msp_debug, client,
380 "FM-stereo carrier : %d.%03d MHz\n",
381 state->second / 910000, (state->second / 910) % 1000);
7e8b09ea
HV		 382 }
383}
384
385/* ----------------------------------------------------------------------- */
386
8a4b275f 387static int msp3400c_detect_stereo(struct i2c_client *client)
7e8b09ea
HV		 388{
389 struct msp_state *state = i2c_get_clientdata(client);
390 int val;
391 int rxsubchans = state->rxsubchans;
8a4b275f 392 int newnicam = state->nicam_on;
7e8b09ea
HV		 393 int update = 0;
394
395 switch (state->mode) {
396 case MSP_MODE_FM_TERRA:
397 val = msp_read_dsp(client, 0x18);
398 if (val > 32767)
399 val -= 65536;
d52c7385
HV		 400 v4l_dbg(2, msp_debug, client,
401 "stereo detect register: %d\n", val);
3bbe5a83 402 if (val > 8192) {
8a4b275f 403 rxsubchans = V4L2_TUNER_SUB_STEREO;
7e8b09ea
HV		 404 } else if (val < -4096) {
405 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
406 } else {
407 rxsubchans = V4L2_TUNER_SUB_MONO;
408 }
409 newnicam = 0;
410 break;
411 case MSP_MODE_FM_NICAM1:
412 case MSP_MODE_FM_NICAM2:
413 case MSP_MODE_AM_NICAM:
414 val = msp_read_dem(client, 0x23);
f167cb4e 415 v4l_dbg(2, msp_debug, client, "nicam sync=%d, mode=%d\n",
7e8b09ea
HV		 416 val & 1, (val & 0x1e) >> 1);
417
418 if (val & 1) {
419 /* nicam synced */
420 switch ((val & 0x1e) >> 1) {
421 case 0:
422 case 8:
423 rxsubchans = V4L2_TUNER_SUB_STEREO;
424 break;
425 case 1:
426 case 9:
8a4b275f 427 rxsubchans = V4L2_TUNER_SUB_MONO;
7e8b09ea
HV		 428 break;
429 case 2:
430 case 10:
8a4b275f 431 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
7e8b09ea
HV		 432 break;
433 default:
434 rxsubchans = V4L2_TUNER_SUB_MONO;
435 break;
436 }
437 newnicam = 1;
438 } else {
439 newnicam = 0;
440 rxsubchans = V4L2_TUNER_SUB_MONO;
441 }
442 break;
7e8b09ea
HV		 443 }
444 if (rxsubchans != state->rxsubchans) {
445 update = 1;
d52c7385
HV		 446 v4l_dbg(1, msp_debug, client,
447 "watch: rxsubchans %02x => %02x\n",
8a4b275f 448 state->rxsubchans, rxsubchans);
7e8b09ea
HV		 449 state->rxsubchans = rxsubchans;
450 }
451 if (newnicam != state->nicam_on) {
452 update = 1;
f167cb4e 453 v4l_dbg(1, msp_debug, client, "watch: nicam %d => %d\n",
8a4b275f 454 state->nicam_on, newnicam);
7e8b09ea
HV		 455 state->nicam_on = newnicam;
456 }
457 return update;
458}
459
460/*
461 * A kernel thread for msp3400 control -- we don't want to block the
462 * in the ioctl while doing the sound carrier & stereo detect
463 */
464/* stereo/multilang monitoring */
465static void watch_stereo(struct i2c_client *client)
466{
467 struct msp_state *state = i2c_get_clientdata(client);
468
d52c7385 469 if (msp_detect_stereo(client))
de533ccf 470 msp_set_audmode(client);
7e8b09ea 471
f167cb4e 472 if (msp_once)
7e8b09ea
HV		 473 state->watch_stereo = 0;
474}
475
476int msp3400c_thread(void *data)
477{
478 struct i2c_client *client = data;
479 struct msp_state *state = i2c_get_clientdata(client);
480 struct msp3400c_carrier_detect *cd;
d52c7385 481 int count, max1, max2, val1, val2, val, i;
7e8b09ea
HV		 482
483
f167cb4e 484 v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n");
83144186 485 set_freezable();
7e8b09ea 486 for (;;) {
f167cb4e 487 v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n");
7e8b09ea 488 msp_sleep(state, -1);
f167cb4e 489 v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n");
7e8b09ea 490
d52c7385 491restart:
8a4b275f 492 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
7e8b09ea
HV		 493 state->restart = 0;
494 if (kthread_should_stop())
495 break;
496
7560d7a4 497 if (state->radio || MSP_MODE_EXTERN == state->mode) {
7e8b09ea 498 /* no carrier scan, just unmute */
d52c7385
HV		 499 v4l_dbg(1, msp_debug, client,
500 "thread: no carrier scan\n");
3bbe5a83 501 state->scan_in_progress = 0;
7e8b09ea
HV		 502 msp_set_audio(client);
503 continue;
504 }
505
3bbe5a83
HV		 506 /* mute audio */
507 state->scan_in_progress = 1;
508 msp_set_audio(client);
0020d3ef 509
de533ccf 510 msp3400c_set_mode(client, MSP_MODE_AM_DETECT);
7e8b09ea
HV		 511 val1 = val2 = 0;
512 max1 = max2 = -1;
513 state->watch_stereo = 0;
8a4b275f 514 state->nicam_on = 0;
7e8b09ea 515
3bbe5a83 516 /* wait for tuner to settle down after a channel change */
8a4b275f 517 if (msp_sleep(state, 200))
7e8b09ea
HV		 518 goto restart;
519
520 /* carrier detect pass #1 -- main carrier */
521 cd = msp3400c_carrier_detect_main;
522 count = ARRAY_SIZE(msp3400c_carrier_detect_main);
523
f167cb4e 524 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
7e8b09ea
HV		 525 /* autodetect doesn't work well with AM ... */
526 max1 = 3;
527 count = 0;
f167cb4e 528 v4l_dbg(1, msp_debug, client, "AM sound override\n");
7e8b09ea
HV		 529 }
530
d52c7385
HV		 531 for (i = 0; i < count; i++) {
532 msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo);
533 if (msp_sleep(state, 100))
7e8b09ea
HV		 534 goto restart;
535 val = msp_read_dsp(client, 0x1b);
536 if (val > 32767)
537 val -= 65536;
538 if (val1 < val)
d52c7385
HV		 539 val1 = val, max1 = i;
540 v4l_dbg(1, msp_debug, client,
541 "carrier1 val: %5d / %s\n", val, cd[i].name);
7e8b09ea
HV		 542 }
543
544 /* carrier detect pass #2 -- second (stereo) carrier */
545 switch (max1) {
546 case 1: /* 5.5 */
547 cd = msp3400c_carrier_detect_55;
548 count = ARRAY_SIZE(msp3400c_carrier_detect_55);
549 break;
550 case 3: /* 6.5 */
551 cd = msp3400c_carrier_detect_65;
552 count = ARRAY_SIZE(msp3400c_carrier_detect_65);
553 break;
554 case 0: /* 4.5 */
555 case 2: /* 6.0 */
556 default:
557 cd = NULL;
558 count = 0;
559 break;
560 }
561
f167cb4e 562 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
7e8b09ea
HV		 563 /* autodetect doesn't work well with AM ... */
564 cd = NULL;
565 count = 0;
566 max2 = 0;
567 }
d52c7385
HV		 568 for (i = 0; i < count; i++) {
569 msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo);
570 if (msp_sleep(state, 100))
7e8b09ea
HV		 571 goto restart;
572 val = msp_read_dsp(client, 0x1b);
573 if (val > 32767)
574 val -= 65536;
575 if (val2 < val)
d52c7385
HV		 576 val2 = val, max2 = i;
577 v4l_dbg(1, msp_debug, client,
578 "carrier2 val: %5d / %s\n", val, cd[i].name);
7e8b09ea
HV		 579 }
580
581 /* program the msp3400 according to the results */
8a4b275f 582 state->main = msp3400c_carrier_detect_main[max1].cdo;
7e8b09ea
HV		 583 switch (max1) {
584 case 1: /* 5.5 */
585 if (max2 == 0) {
586 /* B/G FM-stereo */
587 state->second = msp3400c_carrier_detect_55[max2].cdo;
8a4b275f 588 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
7e8b09ea 589 state->watch_stereo = 1;
7560d7a4 590 } else if (max2 == 1 && state->has_nicam) {
7e8b09ea
HV		 591 /* B/G NICAM */
592 state->second = msp3400c_carrier_detect_55[max2].cdo;
8a4b275f 593 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
7e8b09ea 594 state->nicam_on = 1;
7e8b09ea
HV		 595 state->watch_stereo = 1;
596 } else {
597 goto no_second;
598 }
599 break;
600 case 2: /* 6.0 */
601 /* PAL I NICAM */
602 state->second = MSP_CARRIER(6.552);
8a4b275f 603 msp3400c_set_mode(client, MSP_MODE_FM_NICAM2);
7e8b09ea 604 state->nicam_on = 1;
7e8b09ea
HV		 605 state->watch_stereo = 1;
606 break;
607 case 3: /* 6.5 */
608 if (max2 == 1 || max2 == 2) {
609 /* D/K FM-stereo */
610 state->second = msp3400c_carrier_detect_65[max2].cdo;
8a4b275f 611 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
7e8b09ea 612 state->watch_stereo = 1;
5af0c8f6 613 } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) {
7e8b09ea
HV		 614 /* L NICAM or AM-mono */
615 state->second = msp3400c_carrier_detect_65[max2].cdo;
8a4b275f 616 msp3400c_set_mode(client, MSP_MODE_AM_NICAM);
7e8b09ea 617 state->watch_stereo = 1;
7560d7a4 618 } else if (max2 == 0 && state->has_nicam) {
7e8b09ea
HV		 619 /* D/K NICAM */
620 state->second = msp3400c_carrier_detect_65[max2].cdo;
8a4b275f 621 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
7e8b09ea 622 state->nicam_on = 1;
7e8b09ea
HV		 623 state->watch_stereo = 1;
624 } else {
625 goto no_second;
626 }
627 break;
628 case 0: /* 4.5 */
629 default:
d52c7385 630no_second:
7e8b09ea 631 state->second = msp3400c_carrier_detect_main[max1].cdo;
8a4b275f 632 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
7e8b09ea
HV		 633 break;
634 }
0020d3ef 635 msp3400c_set_carrier(client, state->second, state->main);
7e8b09ea 636
3bbe5a83
HV		 637 /* unmute */
638 state->scan_in_progress = 0;
8a4b275f 639 msp3400c_set_audmode(client);
3bbe5a83 640 msp_set_audio(client);
7e8b09ea 641
f167cb4e 642 if (msp_debug)
7e8b09ea
HV		 643 msp3400c_print_mode(client);
644
8a4b275f
HV		 645 /* monitor tv audio mode, the first time don't wait
646 so long to get a quick stereo/bilingual result */
3bbe5a83 647 count = 3;
7e8b09ea 648 while (state->watch_stereo) {
3bbe5a83 649 if (msp_sleep(state, count ? 1000 : 5000))
7e8b09ea 650 goto restart;
d52c7385
HV		 651 if (count)
652 count--;
3bbe5a83 653 watch_stereo(client);
7e8b09ea
HV		 654 }
655 }
f167cb4e 656 v4l_dbg(1, msp_debug, client, "thread: exit\n");
7e8b09ea
HV		 657 return 0;
658}
659
660
661int msp3410d_thread(void *data)
662{
663 struct i2c_client *client = data;
664 struct msp_state *state = i2c_get_clientdata(client);
0020d3ef 665 int val, i, std, count;
7e8b09ea 666
f167cb4e 667 v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n");
83144186 668 set_freezable();
7e8b09ea 669 for (;;) {
f167cb4e 670 v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n");
d52c7385 671 msp_sleep(state, -1);
f167cb4e 672 v4l_dbg(2, msp_debug, client, "msp3410 thread: wakeup\n");
7e8b09ea 673
d52c7385 674restart:
8a4b275f 675 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
7e8b09ea
HV		 676 state->restart = 0;
677 if (kthread_should_stop())
678 break;
679
680 if (state->mode == MSP_MODE_EXTERN) {
681 /* no carrier scan needed, just unmute */
d52c7385
HV		 682 v4l_dbg(1, msp_debug, client,
683 "thread: no carrier scan\n");
3bbe5a83 684 state->scan_in_progress = 0;
7e8b09ea
HV		 685 msp_set_audio(client);
686 continue;
687 }
688
3bbe5a83
HV		 689 /* mute audio */
690 state->scan_in_progress = 1;
691 msp_set_audio(client);
7e8b09ea 692
de533ccf 693 /* start autodetect. Note: autodetect is not supported for
d52c7385
HV		 694 NTSC-M and radio, hence we force the standard in those
695 cases. */
5af0c8f6
HV		 696 if (state->radio)
697 std = 0x40;
d312a46e 698 else
5af0c8f6 699 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1;
7e8b09ea 700 state->watch_stereo = 0;
8a4b275f 701 state->nicam_on = 0;
7e8b09ea 702
3bbe5a83
HV		 703 /* wait for tuner to settle down after a channel change */
704 if (msp_sleep(state, 200))
705 goto restart;
706
f167cb4e 707 if (msp_debug)
d52c7385
HV		 708 v4l_dbg(2, msp_debug, client,
709 "setting standard: %s (0x%04x)\n",
710 msp_standard_std_name(std), std);
7e8b09ea
HV		 711
712 if (std != 1) {
713 /* programmed some specific mode */
714 val = std;
715 } else {
716 /* triggered autodetect */
5af0c8f6 717 msp_write_dem(client, 0x20, std);
7e8b09ea 718 for (;;) {
d312a46e 719 if (msp_sleep(state, 100))
7e8b09ea
HV		 720 goto restart;
721
722 /* check results */
723 val = msp_read_dem(client, 0x7e);
724 if (val < 0x07ff)
725 break;
d52c7385
HV		 726 v4l_dbg(2, msp_debug, client,
727 "detection still in progress\n");
7e8b09ea
HV		 728 }
729 }
5af0c8f6
HV		 730 for (i = 0; msp_stdlist[i].name != NULL; i++)
731 if (msp_stdlist[i].retval == val)
7e8b09ea 732 break;
f167cb4e 733 v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n",
5af0c8f6
HV		 734 msp_standard_std_name(val), val);
735 state->main = msp_stdlist[i].main;
736 state->second = msp_stdlist[i].second;
737 state->std = val;
3bbe5a83 738 state->rxsubchans = V4L2_TUNER_SUB_MONO;
5af0c8f6 739
d52c7385
HV		 740 if (msp_amsound && !state->radio &&
741 (state->v4l2_std & V4L2_STD_SECAM) && (val != 0x0009)) {
7e8b09ea 742 /* autodetection has failed, let backup */
f167cb4e 743 v4l_dbg(1, msp_debug, client, "autodetection failed,"
5af0c8f6 744 " switching to backup standard: %s (0x%04x)\n",
d52c7385
HV		 745 msp_stdlist[8].name ?
746 msp_stdlist[8].name : "unknown", val);
de533ccf 747 state->std = val = 0x0009;
7e8b09ea
HV		 748 msp_write_dem(client, 0x20, val);
749 }
750
7e8b09ea
HV		 751 /* set stereo */
752 switch (val) {
753 case 0x0008: /* B/G NICAM */
754 case 0x000a: /* I NICAM */
de533ccf
HV		 755 case 0x000b: /* D/K NICAM */
756 if (val == 0x000a)
7e8b09ea 757 state->mode = MSP_MODE_FM_NICAM2;
de533ccf
HV		 758 else
759 state->mode = MSP_MODE_FM_NICAM1;
7e8b09ea 760 /* just turn on stereo */
7e8b09ea
HV		 761 state->nicam_on = 1;
762 state->watch_stereo = 1;
7e8b09ea
HV		 763 break;
764 case 0x0009:
765 state->mode = MSP_MODE_AM_NICAM;
7e8b09ea 766 state->nicam_on = 1;
7e8b09ea
HV		 767 state->watch_stereo = 1;
768 break;
769 case 0x0020: /* BTSC */
8a4b275f 770 /* The pre-'G' models only have BTSC-mono */
7e8b09ea 771 state->mode = MSP_MODE_BTSC;
7e8b09ea
HV		 772 break;
773 case 0x0040: /* FM radio */
7560d7a4 774 state->mode = MSP_MODE_FM_RADIO;
7e8b09ea 775 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
7560d7a4 776 /* not needed in theory if we have radio, but
7e8b09ea 777 short programming enables carrier mute */
8a4b275f
HV		 778 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
779 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
7e8b09ea 780 MSP_CARRIER(10.7));
7e8b09ea 781 break;
de533ccf 782 case 0x0002:
7e8b09ea
HV		 783 case 0x0003:
784 case 0x0004:
785 case 0x0005:
5af0c8f6 786 state->mode = MSP_MODE_FM_TERRA;
7e8b09ea
HV		 787 state->watch_stereo = 1;
788 break;
789 }
790
de533ccf
HV		 791 /* set various prescales */
792 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
793 msp_write_dsp(client, 0x0e, 0x3000); /* FM */
794 if (state->has_nicam)
795 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
796
5af0c8f6
HV		 797 if (state->has_i2s_conf)
798 msp_write_dem(client, 0x40, state->i2s_mode);
7e8b09ea 799
3bbe5a83 800 /* unmute */
8a4b275f 801 msp3400c_set_audmode(client);
3bbe5a83
HV		 802 state->scan_in_progress = 0;
803 msp_set_audio(client);
8a4b275f
HV		 804
805 /* monitor tv audio mode, the first time don't wait
806 so long to get a quick stereo/bilingual result */
3bbe5a83 807 count = 3;
7e8b09ea 808 while (state->watch_stereo) {
3bbe5a83 809 if (msp_sleep(state, count ? 1000 : 5000))
8a4b275f 810 goto restart;
d52c7385
HV		 811 if (count)
812 count--;
3bbe5a83 813 watch_stereo(client);
7e8b09ea
HV		 814 }
815 }
f167cb4e 816 v4l_dbg(1, msp_debug, client, "thread: exit\n");
7e8b09ea
HV		 817 return 0;
818}
819
820/* ----------------------------------------------------------------------- */
821
de533ccf
HV		 822/* msp34xxG + (autoselect no-thread)
823 * this one uses both automatic standard detection and automatic sound
824 * select which are available in the newer G versions
825 * struct msp: only norm, acb and source are really used in this mode
826 */
7e8b09ea 827
9a80a93d
HV		 828static int msp34xxg_modus(struct i2c_client *client)
829{
830 struct msp_state *state = i2c_get_clientdata(client);
831
832 if (state->radio) {
833 v4l_dbg(1, msp_debug, client, "selected radio modus\n");
834 return 0x0001;
835 }
836
837 if (state->v4l2_std & V4L2_STD_PAL) {
838 v4l_dbg(1, msp_debug, client, "selected PAL modus\n");
839 return 0x7001;
840 }
841 if (state->v4l2_std == V4L2_STD_NTSC_M_JP) {
842 v4l_dbg(1, msp_debug, client, "selected M (EIA-J) modus\n");
843 return 0x4001;
844 }
845 if (state->v4l2_std == V4L2_STD_NTSC_M_KR) {
846 v4l_dbg(1, msp_debug, client, "selected M (A2) modus\n");
847 return 0x0001;
848 }
849 if (state->v4l2_std & V4L2_STD_MN) {
850 v4l_dbg(1, msp_debug, client, "selected M (BTSC) modus\n");
851 return 0x2001;
852 }
853 if (state->v4l2_std & V4L2_STD_SECAM) {
854 v4l_dbg(1, msp_debug, client, "selected SECAM modus\n");
855 return 0x6001;
856 }
857 return 0x0001;
858}
859
2474ed44
HV		 860static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in)
861 {
862 struct msp_state *state = i2c_get_clientdata(client);
863 int source, matrix;
864
865 switch (state->audmode) {
866 case V4L2_TUNER_MODE_MONO:
867 source = 0; /* mono only */
868 matrix = 0x30;
869 break;
2474ed44
HV		 870 case V4L2_TUNER_MODE_LANG2:
871 source = 4; /* stereo or B */
872 matrix = 0x10;
873 break;
301e22d6 874 case V4L2_TUNER_MODE_LANG1_LANG2:
2474ed44
HV		 875 source = 1; /* stereo or A|B */
876 matrix = 0x20;
877 break;
0020d3ef 878 case V4L2_TUNER_MODE_LANG1:
0020d3ef
HV		 879 source = 3; /* stereo or A */
880 matrix = 0x00;
881 break;
b331def2
HV		 882 case V4L2_TUNER_MODE_STEREO:
883 default:
884 source = 3; /* stereo or A */
885 matrix = 0x20;
886 break;
2474ed44
HV		 887 }
888
07151724 889 if (in == MSP_DSP_IN_TUNER)
2474ed44
HV		 890 source = (source << 8) | 0x20;
891 /* the msp34x2g puts the MAIN_AVC, MAIN and AUX sources in 12, 13, 14
892 instead of 11, 12, 13. So we add one for that msp version. */
07151724 893 else if (in >= MSP_DSP_IN_MAIN_AVC && state->has_dolby_pro_logic)
2474ed44
HV		 894 source = ((in + 1) << 8) | matrix;
895 else
896 source = (in << 8) | matrix;
897
d52c7385
HV		 898 v4l_dbg(1, msp_debug, client,
899 "set source to %d (0x%x) for output %02x\n", in, source, reg);
2474ed44
HV		 900 msp_write_dsp(client, reg, source);
901}
902
903static void msp34xxg_set_sources(struct i2c_client *client)
904{
905 struct msp_state *state = i2c_get_clientdata(client);
906 u32 in = state->routing.input;
907
908 msp34xxg_set_source(client, 0x0008, (in >> 4) & 0xf);
909 /* quasi-peak detector is set to same input as the loudspeaker (MAIN) */
910 msp34xxg_set_source(client, 0x000c, (in >> 4) & 0xf);
911 msp34xxg_set_source(client, 0x0009, (in >> 8) & 0xf);
912 msp34xxg_set_source(client, 0x000a, (in >> 12) & 0xf);
0020d3ef 913 if (state->has_scart2_out)
2474ed44
HV		 914 msp34xxg_set_source(client, 0x0041, (in >> 16) & 0xf);
915 msp34xxg_set_source(client, 0x000b, (in >> 20) & 0xf);
916}
917
de533ccf
HV		 918/* (re-)initialize the msp34xxg */
919static void msp34xxg_reset(struct i2c_client *client)
7e8b09ea
HV		 920{
921 struct msp_state *state = i2c_get_clientdata(client);
2474ed44 922 int tuner = (state->routing.input >> 3) & 1;
de533ccf 923 int modus;
7e8b09ea 924
de533ccf
HV		 925 /* initialize std to 1 (autodetect) to signal that no standard is
926 selected yet. */
927 state->std = 1;
928
929 msp_reset(client);
7e8b09ea 930
5af0c8f6
HV		 931 if (state->has_i2s_conf)
932 msp_write_dem(client, 0x40, state->i2s_mode);
7e8b09ea
HV		 933
934 /* step-by-step initialisation, as described in the manual */
9a80a93d 935 modus = msp34xxg_modus(client);
2474ed44 936 modus |= tuner ? 0x100 : 0;
de533ccf 937 msp_write_dem(client, 0x30, modus);
7e8b09ea
HV		 938
939 /* write the dsps that may have an influence on
940 standard/audio autodetection right now */
2474ed44 941 msp34xxg_set_sources(client);
7e8b09ea 942
de533ccf
HV		 943 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
944 msp_write_dsp(client, 0x0e, 0x3000); /* FM */
945 if (state->has_nicam)
946 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
7e8b09ea 947
de533ccf
HV		 948 /* set identification threshold. Personally, I
949 * I set it to a higher value than the default
950 * of 0x190 to ignore noisy stereo signals.
951 * this needs tuning. (recommended range 0x00a0-0x03c0)
952 * 0x7f0 = forced mono mode
953 *
954 * a2 threshold for stereo/bilingual.
955 * Note: this register is part of the Manual/Compatibility mode.
956 * It is supported by all 'G'-family chips.
957 */
958 msp_write_dem(client, 0x22, msp_stereo_thresh);
7e8b09ea
HV		 959}
960
961int msp34xxg_thread(void *data)
962{
963 struct i2c_client *client = data;
964 struct msp_state *state = i2c_get_clientdata(client);
de533ccf 965 int val, i;
7e8b09ea 966
f167cb4e 967 v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n");
83144186 968 set_freezable();
7e8b09ea 969 for (;;) {
f167cb4e 970 v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n");
7e8b09ea 971 msp_sleep(state, -1);
f167cb4e 972 v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n");
7e8b09ea 973
d52c7385 974restart:
f167cb4e 975 v4l_dbg(1, msp_debug, client, "thread: restart scan\n");
7e8b09ea
HV		 976 state->restart = 0;
977 if (kthread_should_stop())
978 break;
979
2eb606db
HV		 980 if (state->mode == MSP_MODE_EXTERN) {
981 /* no carrier scan needed, just unmute */
d52c7385
HV		 982 v4l_dbg(1, msp_debug, client,
983 "thread: no carrier scan\n");
2eb606db
HV		 984 state->scan_in_progress = 0;
985 msp_set_audio(client);
986 continue;
987 }
988
7e8b09ea
HV		 989 /* setup the chip*/
990 msp34xxg_reset(client);
de98cdaf
HV		 991 state->std = state->radio ? 0x40 :
992 (state->force_btsc && msp_standard == 1) ? 32 : msp_standard;
de533ccf 993 msp_write_dem(client, 0x20, state->std);
de98cdaf 994 /* start autodetect */
e335fada
HV		 995 if (state->std != 1)
996 goto unmute;
7e8b09ea
HV		 997
998 /* watch autodetect */
d52c7385
HV		 999 v4l_dbg(1, msp_debug, client,
1000 "started autodetect, waiting for result\n");
7e8b09ea
HV		 1001 for (i = 0; i < 10; i++) {
1002 if (msp_sleep(state, 100))
1003 goto restart;
1004
1005 /* check results */
1006 val = msp_read_dem(client, 0x7e);
1007 if (val < 0x07ff) {
de533ccf 1008 state->std = val;
7e8b09ea
HV		 1009 break;
1010 }
d52c7385
HV		 1011 v4l_dbg(2, msp_debug, client,
1012 "detection still in progress\n");
7e8b09ea 1013 }
de533ccf 1014 if (state->std == 1) {
d52c7385
HV		 1015 v4l_dbg(1, msp_debug, client,
1016 "detection still in progress after 10 tries. giving up.\n");
7e8b09ea
HV		 1017 continue;
1018 }
1019
d52c7385
HV		 1020unmute:
1021 v4l_dbg(1, msp_debug, client,
1022 "detected standard: %s (0x%04x)\n",
de533ccf 1023 msp_standard_std_name(state->std), state->std);
7e8b09ea 1024
2eb606db
HV		 1025 if (state->std == 9) {
1026 /* AM NICAM mode */
1027 msp_write_dsp(client, 0x0e, 0x7c00);
1028 }
1029
7e8b09ea
HV		 1030 /* unmute: dispatch sound to scart output, set scart volume */
1031 msp_set_audio(client);
1032
1033 /* restore ACB */
1034 if (msp_write_dsp(client, 0x13, state->acb))
1035 return -1;
1036
de533ccf
HV		 1037 /* the periodic stereo/SAP check is only relevant for
1038 the 0x20 standard (BTSC) */
1039 if (state->std != 0x20)
1040 continue;
1041
1042 state->watch_stereo = 1;
1043
1044 /* monitor tv audio mode, the first time don't wait
1045 in order to get a quick stereo/SAP update */
1046 watch_stereo(client);
1047 while (state->watch_stereo) {
1048 watch_stereo(client);
1049 if (msp_sleep(state, 5000))
1050 goto restart;
1051 }
7e8b09ea 1052 }
f167cb4e 1053 v4l_dbg(1, msp_debug, client, "thread: exit\n");
7e8b09ea
HV		 1054 return 0;
1055}
1056
de533ccf 1057static int msp34xxg_detect_stereo(struct i2c_client *client)
7e8b09ea
HV		 1058{
1059 struct msp_state *state = i2c_get_clientdata(client);
7e8b09ea
HV		 1060 int status = msp_read_dem(client, 0x0200);
1061 int is_bilingual = status & 0x100;
1062 int is_stereo = status & 0x40;
de533ccf 1063 int oldrx = state->rxsubchans;
7e8b09ea 1064
b331def2
HV		 1065 if (state->mode == MSP_MODE_EXTERN)
1066 return 0;
1067
7e8b09ea
HV		 1068 state->rxsubchans = 0;
1069 if (is_stereo)
8a4b275f 1070 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
7e8b09ea 1071 else
8a4b275f 1072 state->rxsubchans = V4L2_TUNER_SUB_MONO;
7e8b09ea 1073 if (is_bilingual) {
de533ccf
HV		 1074 if (state->std == 0x20)
1075 state->rxsubchans |= V4L2_TUNER_SUB_SAP;
1076 else
d52c7385
HV		 1077 state->rxsubchans =
1078 V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
7e8b09ea 1079 }
d52c7385
HV		 1080 v4l_dbg(1, msp_debug, client,
1081 "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
7e8b09ea 1082 status, is_stereo, is_bilingual, state->rxsubchans);
de533ccf 1083 return (oldrx != state->rxsubchans);
7e8b09ea
HV		 1084}
1085
044f324f 1086static void msp34xxg_set_audmode(struct i2c_client *client)
7e8b09ea
HV		 1087{
1088 struct msp_state *state = i2c_get_clientdata(client);
7e8b09ea 1089
de533ccf
HV		 1090 if (state->std == 0x20) {
1091 if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) &&
cc33668b 1092 (state->audmode == V4L2_TUNER_MODE_LANG1_LANG2 ||
de533ccf
HV		 1093 state->audmode == V4L2_TUNER_MODE_LANG2)) {
1094 msp_write_dem(client, 0x20, 0x21);
1095 } else {
1096 msp_write_dem(client, 0x20, 0x20);
1097 }
1098 }
1099
2474ed44 1100 msp34xxg_set_sources(client);
7e8b09ea
HV		 1101}
1102
8a4b275f
HV		 1103void msp_set_audmode(struct i2c_client *client)
1104{
1105 struct msp_state *state = i2c_get_clientdata(client);
1106
1107 switch (state->opmode) {
1108 case OPMODE_MANUAL:
1109 case OPMODE_AUTODETECT:
8a4b275f
HV		 1110 msp3400c_set_audmode(client);
1111 break;
1112 case OPMODE_AUTOSELECT:
1113 msp34xxg_set_audmode(client);
1114 break;
1115 }
1116}
1117
de533ccf 1118int msp_detect_stereo(struct i2c_client *client)
8a4b275f
HV		 1119{
1120 struct msp_state *state = i2c_get_clientdata(client);
1121
1122 switch (state->opmode) {
1123 case OPMODE_MANUAL:
1124 case OPMODE_AUTODETECT:
de533ccf 1125 return msp3400c_detect_stereo(client);
8a4b275f 1126 case OPMODE_AUTOSELECT:
de533ccf 1127 return msp34xxg_detect_stereo(client);
8a4b275f 1128 }
de533ccf 1129 return 0;
8a4b275f
HV		 1130}
1131
Linux kernel - Deliverables
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