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V4L/DVB (3578): Make scart definitions easier to handle
[mirror_ubuntu-artful-kernel.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
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 */
20
21
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>
7e8b09ea
HV		 29#include <linux/kthread.h>
30#include <linux/suspend.h>
31#include "msp3400.h"
32
33/* this one uses the automatic sound standard detection of newer msp34xx
34 chip versions */
35static struct {
36 int retval;
37 int main, second;
38 char *name;
5af0c8f6 39} msp_stdlist[] = {
7e8b09ea
HV		 40 { 0x0000, 0, 0, "could not detect sound standard" },
41 { 0x0001, 0, 0, "autodetect start" },
42 { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72 M Dual FM-Stereo" },
43 { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74 B/G Dual FM-Stereo" },
44 { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25 D/K1 Dual FM-Stereo" },
45 { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74 D/K2 Dual FM-Stereo" },
46 { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 D/K FM-Mono (HDEV3)" },
47 { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" },
48 { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" },
49 { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" },
50 { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" },
51 { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" },
52 { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" },
53 { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" },
54 { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" },
55 { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" },
56 { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" },
57 { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" },
58 { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" },
59 { -1, 0, 0, NULL }, /* EOF */
60};
61
62static struct msp3400c_init_data_dem {
63 int fir1[6];
64 int fir2[6];
65 int cdo1;
66 int cdo2;
67 int ad_cv;
68 int mode_reg;
69 int dsp_src;
70 int dsp_matrix;
71} msp3400c_init_data[] = {
72 { /* AM (for carrier detect / msp3400) */
73 {75, 19, 36, 35, 39, 40},
74 {75, 19, 36, 35, 39, 40},
75 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
76 0x00d0, 0x0500, 0x0020, 0x3000
77 },{ /* AM (for carrier detect / msp3410) */
78 {-1, -1, -8, 2, 59, 126},
79 {-1, -1, -8, 2, 59, 126},
80 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
81 0x00d0, 0x0100, 0x0020, 0x3000
82 },{ /* FM Radio */
83 {-8, -8, 4, 6, 78, 107},
84 {-8, -8, 4, 6, 78, 107},
85 MSP_CARRIER(10.7), MSP_CARRIER(10.7),
86 0x00d0, 0x0480, 0x0020, 0x3000
87 },{ /* Terrestial FM-mono + FM-stereo */
88 {3, 18, 27, 48, 66, 72},
89 {3, 18, 27, 48, 66, 72},
90 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
91 0x00d0, 0x0480, 0x0030, 0x3000
92 },{ /* Sat FM-mono */
93 { 1, 9, 14, 24, 33, 37},
94 { 3, 18, 27, 48, 66, 72},
95 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
96 0x00c6, 0x0480, 0x0000, 0x3000
97 },{ /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */
98 {-2, -8, -10, 10, 50, 86},
99 {3, 18, 27, 48, 66, 72},
100 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
101 0x00d0, 0x0040, 0x0120, 0x3000
102 },{ /* NICAM/FM -- I (6.0/6.552) */
103 {2, 4, -6, -4, 40, 94},
104 {3, 18, 27, 48, 66, 72},
105 MSP_CARRIER(6.0), MSP_CARRIER(6.0),
106 0x00d0, 0x0040, 0x0120, 0x3000
107 },{ /* NICAM/AM -- L (6.5/5.85) */
108 {-2, -8, -10, 10, 50, 86},
109 {-4, -12, -9, 23, 79, 126},
110 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
8a4b275f 111 0x00c6, 0x0140, 0x0120, 0x7c00
7e8b09ea
HV		 112 },
113};
114
115struct msp3400c_carrier_detect {
116 int cdo;
117 char *name;
118};
119
120static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = {
121 /* main carrier */
122 { MSP_CARRIER(4.5), "4.5 NTSC" },
123 { MSP_CARRIER(5.5), "5.5 PAL B/G" },
124 { MSP_CARRIER(6.0), "6.0 PAL I" },
125 { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" }
126};
127
128static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = {
129 /* PAL B/G */
130 { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" },
131 { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" }
132};
133
134static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = {
135 /* PAL SAT / SECAM */
136 { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" },
137 { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" },
138 { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" },
139 { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" },
140 { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" },
141 { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" },
142};
143
144/* ------------------------------------------------------------------------ */
145
5af0c8f6 146const char *msp_standard_std_name(int std)
7e8b09ea
HV		 147{
148 int i;
149
5af0c8f6
HV		 150 for (i = 0; msp_stdlist[i].name != NULL; i++)
151 if (msp_stdlist[i].retval == std)
152 return msp_stdlist[i].name;
7e8b09ea
HV		 153 return "unknown";
154}
155
044f324f 156static void msp_set_source(struct i2c_client *client, u16 src)
8a4b275f
HV		 157{
158 struct msp_state *state = i2c_get_clientdata(client);
159
160 if (msp_dolby) {
161 msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */
162 msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */
163 } else {
164 msp_write_dsp(client, 0x0008, src);
165 msp_write_dsp(client, 0x0009, src);
166 }
167 msp_write_dsp(client, 0x000a, src);
168 msp_write_dsp(client, 0x000b, src);
169 msp_write_dsp(client, 0x000c, src);
170 if (state->has_scart23_in_scart2_out)
171 msp_write_dsp(client, 0x0041, src);
172}
173
174void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2)
7e8b09ea
HV		 175{
176 msp_write_dem(client, 0x0093, cdo1 & 0xfff);
177 msp_write_dem(client, 0x009b, cdo1 >> 12);
178 msp_write_dem(client, 0x00a3, cdo2 & 0xfff);
179 msp_write_dem(client, 0x00ab, cdo2 >> 12);
8a4b275f 180 msp_write_dem(client, 0x0056, 0); /* LOAD_REG_1/2 */
7e8b09ea
HV		 181}
182
8a4b275f 183void msp3400c_set_mode(struct i2c_client *client, int mode)
7e8b09ea
HV		 184{
185 struct msp_state *state = i2c_get_clientdata(client);
8a4b275f 186 struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode];
7e8b09ea
HV		 187 int i;
188
8a4b275f
HV		 189 v4l_dbg(1, msp_debug, client, "set_mode: %d\n", mode);
190 state->mode = mode;
7e8b09ea
HV		 191 state->rxsubchans = V4L2_TUNER_SUB_MONO;
192
8a4b275f 193 msp_write_dem(client, 0x00bb, data->ad_cv);
7e8b09ea
HV		 194
195 for (i = 5; i >= 0; i--) /* fir 1 */
8a4b275f 196 msp_write_dem(client, 0x0001, data->fir1[i]);
7e8b09ea
HV		 197
198 msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */
199 msp_write_dem(client, 0x0005, 0x0040);
200 msp_write_dem(client, 0x0005, 0x0000);
201 for (i = 5; i >= 0; i--)
8a4b275f 202 msp_write_dem(client, 0x0005, data->fir2[i]);
7e8b09ea 203
8a4b275f 204 msp_write_dem(client, 0x0083, data->mode_reg);
7e8b09ea 205
8a4b275f 206 msp3400c_set_carrier(client, data->cdo1, data->cdo2);
7e8b09ea 207
8a4b275f
HV		 208 msp_set_source(client, data->dsp_src);
209 msp_write_dsp(client, 0x000e, data->dsp_matrix);
7e8b09ea 210
7560d7a4 211 if (state->has_nicam) {
7e8b09ea
HV		 212 /* nicam prescale */
213 msp_write_dsp(client, 0x0010, 0x5a00); /* was: 0x3000 */
214 }
215}
216
8a4b275f
HV		 217/* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP,
218 nor do they support stereo BTSC. */
044f324f 219static void msp3400c_set_audmode(struct i2c_client *client)
7e8b09ea 220{
d312a46e 221 static char *strmode[] = { "mono", "stereo", "lang2", "lang1" };
7e8b09ea 222 struct msp_state *state = i2c_get_clientdata(client);
8a4b275f
HV		 223 char *modestr = (state->audmode >= 0 && state->audmode < 4) ?
224 strmode[state->audmode] : "unknown";
225 int src = 0; /* channel source: FM/AM, nicam or SCART */
7e8b09ea
HV		 226
227 if (state->opmode == OPMODE_AUTOSELECT) {
228 /* this method would break everything, let's make sure
229 * it's never called
230 */
8a4b275f
HV		 231 v4l_dbg(1, msp_debug, client,
232 "set_audmode called with mode=%d instead of set_source (ignored)\n",
233 state->audmode);
7e8b09ea
HV		 234 return;
235 }
236
237 /* switch demodulator */
238 switch (state->mode) {
239 case MSP_MODE_FM_TERRA:
8a4b275f
HV		 240 v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr);
241 switch (state->audmode) {
7e8b09ea
HV		 242 case V4L2_TUNER_MODE_STEREO:
243 msp_write_dsp(client, 0x000e, 0x3001);
244 break;
245 case V4L2_TUNER_MODE_MONO:
246 case V4L2_TUNER_MODE_LANG1:
247 case V4L2_TUNER_MODE_LANG2:
248 msp_write_dsp(client, 0x000e, 0x3000);
249 break;
250 }
251 break;
252 case MSP_MODE_FM_SAT:
8a4b275f
HV		 253 v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr);
254 switch (state->audmode) {
7e8b09ea 255 case V4L2_TUNER_MODE_MONO:
8a4b275f 256 msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
7e8b09ea
HV		 257 break;
258 case V4L2_TUNER_MODE_STEREO:
8a4b275f 259 msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
7e8b09ea
HV		 260 break;
261 case V4L2_TUNER_MODE_LANG1:
8a4b275f 262 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
7e8b09ea
HV		 263 break;
264 case V4L2_TUNER_MODE_LANG2:
8a4b275f 265 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
7e8b09ea
HV		 266 break;
267 }
268 break;
269 case MSP_MODE_FM_NICAM1:
270 case MSP_MODE_FM_NICAM2:
271 case MSP_MODE_AM_NICAM:
8a4b275f
HV		 272 v4l_dbg(1, msp_debug, client, "NICAM set_audmode: %s\n",modestr);
273 msp3400c_set_carrier(client, state->second, state->main);
7e8b09ea 274 if (state->nicam_on)
8a4b275f 275 src = 0x0100; /* NICAM */
7e8b09ea
HV		 276 break;
277 case MSP_MODE_BTSC:
8a4b275f 278 v4l_dbg(1, msp_debug, client, "BTSC set_audmode: %s\n",modestr);
7e8b09ea
HV		 279 break;
280 case MSP_MODE_EXTERN:
8a4b275f
HV		 281 v4l_dbg(1, msp_debug, client, "extern set_audmode: %s\n",modestr);
282 src = 0x0200; /* SCART */
7e8b09ea
HV		 283 break;
284 case MSP_MODE_FM_RADIO:
8a4b275f 285 v4l_dbg(1, msp_debug, client, "FM-Radio set_audmode: %s\n",modestr);
7e8b09ea
HV		 286 break;
287 default:
8a4b275f 288 v4l_dbg(1, msp_debug, client, "mono set_audmode\n");
7e8b09ea
HV		 289 return;
290 }
291
292 /* switch audio */
8a4b275f 293 switch (state->audmode) {
7e8b09ea 294 case V4L2_TUNER_MODE_STEREO:
8a4b275f 295 src |= 0x0020;
7e8b09ea
HV		 296 break;
297 case V4L2_TUNER_MODE_MONO:
298 if (state->mode == MSP_MODE_AM_NICAM) {
f167cb4e 299 v4l_dbg(1, msp_debug, client, "switching to AM mono\n");
7e8b09ea
HV		 300 /* AM mono decoding is handled by tuner, not MSP chip */
301 /* SCART switching control register */
302 msp_set_scart(client, SCART_MONO, 0);
303 src = 0x0200;
304 break;
305 }
8a4b275f
HV		 306 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
307 src = 0x0030;
308 break;
7e8b09ea 309 case V4L2_TUNER_MODE_LANG1:
8a4b275f
HV		 310 /* switch to stereo for stereo transmission, otherwise
311 keep first language */
312 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
313 src |= 0x0020;
7e8b09ea
HV		 314 break;
315 case V4L2_TUNER_MODE_LANG2:
8a4b275f 316 src |= 0x0010;
7e8b09ea
HV		 317 break;
318 }
8a4b275f 319 v4l_dbg(1, msp_debug, client, "set_audmode final source/matrix = 0x%x\n", src);
7e8b09ea 320
8a4b275f 321 msp_set_source(client, src);
7e8b09ea
HV		 322}
323
324static void msp3400c_print_mode(struct i2c_client *client)
325{
326 struct msp_state *state = i2c_get_clientdata(client);
327
328 if (state->main == state->second) {
f167cb4e 329 v4l_dbg(1, msp_debug, client, "mono sound carrier: %d.%03d MHz\n",
7e8b09ea
HV		 330 state->main / 910000, (state->main / 910) % 1000);
331 } else {
f167cb4e 332 v4l_dbg(1, msp_debug, client, "main sound carrier: %d.%03d MHz\n",
7e8b09ea
HV		 333 state->main / 910000, (state->main / 910) % 1000);
334 }
335 if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2)
f167cb4e 336 v4l_dbg(1, msp_debug, client, "NICAM/FM carrier : %d.%03d MHz\n",
7e8b09ea
HV		 337 state->second / 910000, (state->second/910) % 1000);
338 if (state->mode == MSP_MODE_AM_NICAM)
f167cb4e 339 v4l_dbg(1, msp_debug, client, "NICAM/AM carrier : %d.%03d MHz\n",
7e8b09ea
HV		 340 state->second / 910000, (state->second / 910) % 1000);
341 if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) {
f167cb4e 342 v4l_dbg(1, msp_debug, client, "FM-stereo carrier : %d.%03d MHz\n",
7e8b09ea
HV		 343 state->second / 910000, (state->second / 910) % 1000);
344 }
345}
346
347/* ----------------------------------------------------------------------- */
348
8a4b275f 349static int msp3400c_detect_stereo(struct i2c_client *client)
7e8b09ea
HV		 350{
351 struct msp_state *state = i2c_get_clientdata(client);
352 int val;
353 int rxsubchans = state->rxsubchans;
8a4b275f 354 int newnicam = state->nicam_on;
7e8b09ea
HV		 355 int update = 0;
356
357 switch (state->mode) {
358 case MSP_MODE_FM_TERRA:
359 val = msp_read_dsp(client, 0x18);
360 if (val > 32767)
361 val -= 65536;
f167cb4e 362 v4l_dbg(2, msp_debug, client, "stereo detect register: %d\n", val);
7e8b09ea 363 if (val > 4096) {
8a4b275f 364 rxsubchans = V4L2_TUNER_SUB_STEREO;
7e8b09ea
HV		 365 } else if (val < -4096) {
366 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
367 } else {
368 rxsubchans = V4L2_TUNER_SUB_MONO;
369 }
370 newnicam = 0;
371 break;
372 case MSP_MODE_FM_NICAM1:
373 case MSP_MODE_FM_NICAM2:
374 case MSP_MODE_AM_NICAM:
375 val = msp_read_dem(client, 0x23);
f167cb4e 376 v4l_dbg(2, msp_debug, client, "nicam sync=%d, mode=%d\n",
7e8b09ea
HV		 377 val & 1, (val & 0x1e) >> 1);
378
379 if (val & 1) {
380 /* nicam synced */
381 switch ((val & 0x1e) >> 1) {
382 case 0:
383 case 8:
384 rxsubchans = V4L2_TUNER_SUB_STEREO;
385 break;
386 case 1:
387 case 9:
8a4b275f 388 rxsubchans = V4L2_TUNER_SUB_MONO;
7e8b09ea
HV		 389 break;
390 case 2:
391 case 10:
8a4b275f 392 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
7e8b09ea
HV		 393 break;
394 default:
395 rxsubchans = V4L2_TUNER_SUB_MONO;
396 break;
397 }
398 newnicam = 1;
399 } else {
400 newnicam = 0;
401 rxsubchans = V4L2_TUNER_SUB_MONO;
402 }
403 break;
7e8b09ea
HV		 404 }
405 if (rxsubchans != state->rxsubchans) {
406 update = 1;
8a4b275f
HV		 407 v4l_dbg(1, msp_debug, client, "watch: rxsubchans %02x => %02x\n",
408 state->rxsubchans, rxsubchans);
7e8b09ea
HV		 409 state->rxsubchans = rxsubchans;
410 }
411 if (newnicam != state->nicam_on) {
412 update = 1;
f167cb4e 413 v4l_dbg(1, msp_debug, client, "watch: nicam %d => %d\n",
8a4b275f 414 state->nicam_on, newnicam);
7e8b09ea
HV		 415 state->nicam_on = newnicam;
416 }
417 return update;
418}
419
420/*
421 * A kernel thread for msp3400 control -- we don't want to block the
422 * in the ioctl while doing the sound carrier & stereo detect
423 */
424/* stereo/multilang monitoring */
425static void watch_stereo(struct i2c_client *client)
426{
427 struct msp_state *state = i2c_get_clientdata(client);
428
8a4b275f
HV		 429 if (msp3400c_detect_stereo(client)) {
430 msp3400c_set_audmode(client);
7e8b09ea
HV		 431 }
432
f167cb4e 433 if (msp_once)
7e8b09ea
HV		 434 state->watch_stereo = 0;
435}
436
437int msp3400c_thread(void *data)
438{
439 struct i2c_client *client = data;
440 struct msp_state *state = i2c_get_clientdata(client);
441 struct msp3400c_carrier_detect *cd;
8a4b275f 442 int count, max1, max2, val1, val2, val, this;
7e8b09ea
HV		 443
444
f167cb4e 445 v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n");
7e8b09ea 446 for (;;) {
f167cb4e 447 v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n");
7e8b09ea 448 msp_sleep(state, -1);
f167cb4e 449 v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n");
7e8b09ea
HV		 450
451 restart:
8a4b275f 452 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
7e8b09ea
HV		 453 state->restart = 0;
454 if (kthread_should_stop())
455 break;
456
7560d7a4 457 if (state->radio || MSP_MODE_EXTERN == state->mode) {
7e8b09ea 458 /* no carrier scan, just unmute */
f167cb4e 459 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n");
7e8b09ea
HV		 460 msp_set_audio(client);
461 continue;
462 }
463
464 /* mute */
465 msp_set_mute(client);
8a4b275f 466 msp3400c_set_mode(client, MSP_MODE_AM_DETECT /* +1 */ );
7e8b09ea
HV		 467 val1 = val2 = 0;
468 max1 = max2 = -1;
469 state->watch_stereo = 0;
8a4b275f 470 state->nicam_on = 0;
7e8b09ea
HV		 471
472 /* some time for the tuner to sync */
8a4b275f 473 if (msp_sleep(state, 200))
7e8b09ea
HV		 474 goto restart;
475
476 /* carrier detect pass #1 -- main carrier */
477 cd = msp3400c_carrier_detect_main;
478 count = ARRAY_SIZE(msp3400c_carrier_detect_main);
479
f167cb4e 480 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
7e8b09ea
HV		 481 /* autodetect doesn't work well with AM ... */
482 max1 = 3;
483 count = 0;
f167cb4e 484 v4l_dbg(1, msp_debug, client, "AM sound override\n");
7e8b09ea
HV		 485 }
486
487 for (this = 0; this < count; this++) {
8a4b275f 488 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
7e8b09ea
HV		 489 if (msp_sleep(state,100))
490 goto restart;
491 val = msp_read_dsp(client, 0x1b);
492 if (val > 32767)
493 val -= 65536;
494 if (val1 < val)
495 val1 = val, max1 = this;
f167cb4e 496 v4l_dbg(1, msp_debug, client, "carrier1 val: %5d / %s\n", val,cd[this].name);
7e8b09ea
HV		 497 }
498
499 /* carrier detect pass #2 -- second (stereo) carrier */
500 switch (max1) {
501 case 1: /* 5.5 */
502 cd = msp3400c_carrier_detect_55;
503 count = ARRAY_SIZE(msp3400c_carrier_detect_55);
504 break;
505 case 3: /* 6.5 */
506 cd = msp3400c_carrier_detect_65;
507 count = ARRAY_SIZE(msp3400c_carrier_detect_65);
508 break;
509 case 0: /* 4.5 */
510 case 2: /* 6.0 */
511 default:
512 cd = NULL;
513 count = 0;
514 break;
515 }
516
f167cb4e 517 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
7e8b09ea
HV		 518 /* autodetect doesn't work well with AM ... */
519 cd = NULL;
520 count = 0;
521 max2 = 0;
522 }
523 for (this = 0; this < count; this++) {
8a4b275f 524 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
7e8b09ea
HV		 525 if (msp_sleep(state,100))
526 goto restart;
527 val = msp_read_dsp(client, 0x1b);
528 if (val > 32767)
529 val -= 65536;
530 if (val2 < val)
531 val2 = val, max2 = this;
f167cb4e 532 v4l_dbg(1, msp_debug, client, "carrier2 val: %5d / %s\n", val,cd[this].name);
7e8b09ea
HV		 533 }
534
535 /* program the msp3400 according to the results */
8a4b275f 536 state->main = msp3400c_carrier_detect_main[max1].cdo;
7e8b09ea
HV		 537 switch (max1) {
538 case 1: /* 5.5 */
539 if (max2 == 0) {
540 /* B/G FM-stereo */
541 state->second = msp3400c_carrier_detect_55[max2].cdo;
8a4b275f 542 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
7e8b09ea 543 state->watch_stereo = 1;
7560d7a4 544 } else if (max2 == 1 && state->has_nicam) {
7e8b09ea
HV		 545 /* B/G NICAM */
546 state->second = msp3400c_carrier_detect_55[max2].cdo;
8a4b275f
HV		 547 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
548 msp3400c_set_carrier(client, state->second, state->main);
7e8b09ea 549 state->nicam_on = 1;
7e8b09ea
HV		 550 state->watch_stereo = 1;
551 } else {
552 goto no_second;
553 }
554 break;
555 case 2: /* 6.0 */
556 /* PAL I NICAM */
557 state->second = MSP_CARRIER(6.552);
8a4b275f
HV		 558 msp3400c_set_mode(client, MSP_MODE_FM_NICAM2);
559 msp3400c_set_carrier(client, state->second, state->main);
7e8b09ea 560 state->nicam_on = 1;
7e8b09ea
HV		 561 state->watch_stereo = 1;
562 break;
563 case 3: /* 6.5 */
564 if (max2 == 1 || max2 == 2) {
565 /* D/K FM-stereo */
566 state->second = msp3400c_carrier_detect_65[max2].cdo;
8a4b275f 567 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
7e8b09ea 568 state->watch_stereo = 1;
5af0c8f6 569 } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) {
7e8b09ea
HV		 570 /* L NICAM or AM-mono */
571 state->second = msp3400c_carrier_detect_65[max2].cdo;
8a4b275f
HV		 572 msp3400c_set_mode(client, MSP_MODE_AM_NICAM);
573 msp3400c_set_carrier(client, state->second, state->main);
7e8b09ea
HV		 574 /* volume prescale for SCART (AM mono input) */
575 msp_write_dsp(client, 0x000d, 0x1900);
576 state->watch_stereo = 1;
7560d7a4 577 } else if (max2 == 0 && state->has_nicam) {
7e8b09ea
HV		 578 /* D/K NICAM */
579 state->second = msp3400c_carrier_detect_65[max2].cdo;
8a4b275f
HV		 580 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
581 msp3400c_set_carrier(client, state->second, state->main);
7e8b09ea 582 state->nicam_on = 1;
7e8b09ea
HV		 583 state->watch_stereo = 1;
584 } else {
585 goto no_second;
586 }
587 break;
588 case 0: /* 4.5 */
589 default:
590 no_second:
591 state->second = msp3400c_carrier_detect_main[max1].cdo;
8a4b275f
HV		 592 msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
593 msp3400c_set_carrier(client, state->second, state->main);
7e8b09ea 594 state->rxsubchans = V4L2_TUNER_SUB_MONO;
7e8b09ea
HV		 595 break;
596 }
597
598 /* unmute */
599 msp_set_audio(client);
8a4b275f 600 msp3400c_set_audmode(client);
7e8b09ea 601
f167cb4e 602 if (msp_debug)
7e8b09ea
HV		 603 msp3400c_print_mode(client);
604
8a4b275f
HV		 605 /* monitor tv audio mode, the first time don't wait
606 so long to get a quick stereo/bilingual result */
607 if (msp_sleep(state, 1000))
608 goto restart;
7e8b09ea 609 while (state->watch_stereo) {
8a4b275f 610 if (msp_sleep(state, 5000))
7e8b09ea
HV		 611 goto restart;
612 watch_stereo(client);
613 }
614 }
f167cb4e 615 v4l_dbg(1, msp_debug, client, "thread: exit\n");
7e8b09ea
HV		 616 return 0;
617}
618
619
620int msp3410d_thread(void *data)
621{
622 struct i2c_client *client = data;
623 struct msp_state *state = i2c_get_clientdata(client);
d312a46e 624 int val, i, std;
7e8b09ea 625
f167cb4e 626 v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n");
7e8b09ea
HV		 627
628 for (;;) {
f167cb4e 629 v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n");
7e8b09ea 630 msp_sleep(state,-1);
f167cb4e 631 v4l_dbg(2, msp_debug, client, "msp3410 thread: wakeup\n");
7e8b09ea
HV		 632
633 restart:
8a4b275f 634 v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
7e8b09ea
HV		 635 state->restart = 0;
636 if (kthread_should_stop())
637 break;
638
639 if (state->mode == MSP_MODE_EXTERN) {
640 /* no carrier scan needed, just unmute */
f167cb4e 641 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n");
7e8b09ea
HV		 642 msp_set_audio(client);
643 continue;
644 }
645
646 /* put into sane state (and mute) */
647 msp_reset(client);
648
649 /* some time for the tuner to sync */
650 if (msp_sleep(state,200))
651 goto restart;
652
653 /* start autodetect */
5af0c8f6
HV		 654 if (state->radio)
655 std = 0x40;
d312a46e 656 else
5af0c8f6 657 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1;
7e8b09ea 658 state->watch_stereo = 0;
8a4b275f 659 state->nicam_on = 0;
7e8b09ea 660
f167cb4e 661 if (msp_debug)
8a4b275f 662 v4l_dbg(2, msp_debug, client, "setting standard: %s (0x%04x)\n",
5af0c8f6 663 msp_standard_std_name(std), std);
7e8b09ea
HV		 664
665 if (std != 1) {
666 /* programmed some specific mode */
667 val = std;
668 } else {
669 /* triggered autodetect */
5af0c8f6 670 msp_write_dem(client, 0x20, std);
7e8b09ea 671 for (;;) {
d312a46e 672 if (msp_sleep(state, 100))
7e8b09ea
HV		 673 goto restart;
674
675 /* check results */
676 val = msp_read_dem(client, 0x7e);
677 if (val < 0x07ff)
678 break;
8a4b275f 679 v4l_dbg(2, msp_debug, client, "detection still in progress\n");
7e8b09ea
HV		 680 }
681 }
5af0c8f6
HV		 682 for (i = 0; msp_stdlist[i].name != NULL; i++)
683 if (msp_stdlist[i].retval == val)
7e8b09ea 684 break;
f167cb4e 685 v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n",
5af0c8f6
HV		 686 msp_standard_std_name(val), val);
687 state->main = msp_stdlist[i].main;
688 state->second = msp_stdlist[i].second;
689 state->std = val;
690
f167cb4e 691 if (msp_amsound && !state->radio && (state->v4l2_std & V4L2_STD_SECAM) &&
5af0c8f6 692 (val != 0x0009)) {
7e8b09ea 693 /* autodetection has failed, let backup */
f167cb4e 694 v4l_dbg(1, msp_debug, client, "autodetection failed,"
5af0c8f6
HV		 695 " switching to backup standard: %s (0x%04x)\n",
696 msp_stdlist[8].name ? msp_stdlist[8].name : "unknown",val);
7e8b09ea
HV		 697 val = 0x0009;
698 msp_write_dem(client, 0x20, val);
699 }
700
701 /* set various prescales */
702 msp_write_dsp(client, 0x0d, 0x1900); /* scart */
703 msp_write_dsp(client, 0x0e, 0x2403); /* FM */
704 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
705
706 /* set stereo */
707 switch (val) {
708 case 0x0008: /* B/G NICAM */
709 case 0x000a: /* I NICAM */
710 if (val == 0x0008)
711 state->mode = MSP_MODE_FM_NICAM1;
712 else
713 state->mode = MSP_MODE_FM_NICAM2;
714 /* just turn on stereo */
715 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
716 state->nicam_on = 1;
717 state->watch_stereo = 1;
7e8b09ea
HV		 718 break;
719 case 0x0009:
720 state->mode = MSP_MODE_AM_NICAM;
721 state->rxsubchans = V4L2_TUNER_SUB_MONO;
722 state->nicam_on = 1;
7e8b09ea
HV		 723 state->watch_stereo = 1;
724 break;
725 case 0x0020: /* BTSC */
8a4b275f 726 /* The pre-'G' models only have BTSC-mono */
7e8b09ea 727 state->mode = MSP_MODE_BTSC;
8a4b275f 728 state->rxsubchans = V4L2_TUNER_SUB_MONO;
7e8b09ea
HV		 729 break;
730 case 0x0040: /* FM radio */
7560d7a4 731 state->mode = MSP_MODE_FM_RADIO;
7e8b09ea 732 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
7560d7a4 733 /* not needed in theory if we have radio, but
7e8b09ea 734 short programming enables carrier mute */
8a4b275f
HV		 735 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
736 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
7e8b09ea 737 MSP_CARRIER(10.7));
8a4b275f 738 /* scart routing (this doesn't belong here I think) */
7e8b09ea 739 msp_set_scart(client,SCART_IN2,0);
7e8b09ea
HV		 740 break;
741 case 0x0003:
742 case 0x0004:
743 case 0x0005:
5af0c8f6 744 state->mode = MSP_MODE_FM_TERRA;
7e8b09ea 745 state->rxsubchans = V4L2_TUNER_SUB_MONO;
7e8b09ea
HV		 746 state->watch_stereo = 1;
747 break;
748 }
749
750 /* unmute, restore misc registers */
751 msp_set_audio(client);
752 msp_write_dsp(client, 0x13, state->acb);
5af0c8f6
HV		 753 if (state->has_i2s_conf)
754 msp_write_dem(client, 0x40, state->i2s_mode);
7e8b09ea 755
8a4b275f
HV		 756 msp3400c_set_audmode(client);
757
758 /* monitor tv audio mode, the first time don't wait
759 so long to get a quick stereo/bilingual result */
760 if (msp_sleep(state, 1000))
761 goto restart;
7e8b09ea 762 while (state->watch_stereo) {
7e8b09ea 763 watch_stereo(client);
8a4b275f
HV		 764 if (msp_sleep(state, 5000))
765 goto restart;
7e8b09ea
HV		 766 }
767 }
f167cb4e 768 v4l_dbg(1, msp_debug, client, "thread: exit\n");
7e8b09ea
HV		 769 return 0;
770}
771
772/* ----------------------------------------------------------------------- */
773
f167cb4e 774/* msp34xxG + (autoselect no-thread) */
7e8b09ea
HV		 775/* this one uses both automatic standard detection and automatic sound */
776/* select which are available in the newer G versions */
777/* struct msp: only norm, acb and source are really used in this mode */
778
779/* set the same 'source' for the loudspeaker, scart and quasi-peak detector
780 * the value for source is the same as bit 15:8 of DSP registers 0x08,
781 * 0x0a and 0x0c: 0=mono, 1=stereo or A|B, 2=SCART, 3=stereo or A, 4=stereo or B
782 *
8a4b275f 783 * this function replaces msp3400c_set_audmode
7e8b09ea
HV		 784 */
785static void msp34xxg_set_source(struct i2c_client *client, int source)
786{
787 struct msp_state *state = i2c_get_clientdata(client);
788
789 /* fix matrix mode to stereo and let the msp choose what
790 * to output according to 'source', as recommended
791 * for MONO (source==0) downmixing set bit[7:0] to 0x30
792 */
793 int value = (source & 0x07) << 8 | (source == 0 ? 0x30 : 0x20);
794
f167cb4e 795 v4l_dbg(1, msp_debug, client, "set source to %d (0x%x)\n", source, value);
8a4b275f 796 msp_set_source(client, value);
7e8b09ea
HV		 797 /*
798 * set identification threshold. Personally, I
799 * I set it to a higher value that the default
800 * of 0x190 to ignore noisy stereo signals.
801 * this needs tuning. (recommended range 0x00a0-0x03c0)
802 * 0x7f0 = forced mono mode
803 */
804 /* a2 threshold for stereo/bilingual */
f167cb4e 805 msp_write_dem(client, 0x22, msp_stereo_thresh);
7e8b09ea
HV		 806 state->source = source;
807}
808
809/* (re-)initialize the msp34xxg, according to the current norm in state->norm
810 * return 0 if it worked, -1 if it failed
811 */
812static int msp34xxg_reset(struct i2c_client *client)
813{
814 struct msp_state *state = i2c_get_clientdata(client);
815 int modus, std;
816
817 if (msp_reset(client))
818 return -1;
819
820 /* make sure that input/output is muted (paranoid mode) */
821 /* ACB, mute DSP input, mute SCART 1 */
822 if (msp_write_dsp(client, 0x13, 0x0f20))
823 return -1;
824
5af0c8f6
HV		 825 if (state->has_i2s_conf)
826 msp_write_dem(client, 0x40, state->i2s_mode);
7e8b09ea
HV		 827
828 /* step-by-step initialisation, as described in the manual */
7560d7a4
HV		 829 modus = msp_modus(client);
830 if (state->radio)
831 std = 0x40;
832 else
5af0c8f6 833 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1;
7e8b09ea
HV		 834 modus &= ~0x03; /* STATUS_CHANGE = 0 */
835 modus |= 0x01; /* AUTOMATIC_SOUND_DETECTION = 1 */
836 if (msp_write_dem(client, 0x30, modus))
837 return -1;
838 if (msp_write_dem(client, 0x20, std))
839 return -1;
840
841 /* write the dsps that may have an influence on
842 standard/audio autodetection right now */
843 msp34xxg_set_source(client, state->source);
844
845 /* AM/FM Prescale [15:8] 75khz deviation */
846 if (msp_write_dsp(client, 0x0e, 0x3000))
847 return -1;
848
849 /* NICAM Prescale 9db gain (as recommended) */
850 if (msp_write_dsp(client, 0x10, 0x5a00))
851 return -1;
852
853 return 0;
854}
855
856int msp34xxg_thread(void *data)
857{
858 struct i2c_client *client = data;
859 struct msp_state *state = i2c_get_clientdata(client);
860 int val, std, i;
861
f167cb4e 862 v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n");
7e8b09ea
HV		 863
864 state->source = 1; /* default */
865 for (;;) {
f167cb4e 866 v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n");
7e8b09ea 867 msp_sleep(state, -1);
f167cb4e 868 v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n");
7e8b09ea
HV		 869
870 restart:
f167cb4e 871 v4l_dbg(1, msp_debug, client, "thread: restart scan\n");
7e8b09ea
HV		 872 state->restart = 0;
873 if (kthread_should_stop())
874 break;
875
876 /* setup the chip*/
877 msp34xxg_reset(client);
f167cb4e 878 std = msp_standard;
7e8b09ea
HV		 879 if (std != 0x01)
880 goto unmute;
881
882 /* watch autodetect */
f167cb4e 883 v4l_dbg(1, msp_debug, client, "triggered autodetect, waiting for result\n");
7e8b09ea
HV		 884 for (i = 0; i < 10; i++) {
885 if (msp_sleep(state, 100))
886 goto restart;
887
888 /* check results */
889 val = msp_read_dem(client, 0x7e);
890 if (val < 0x07ff) {
891 std = val;
892 break;
893 }
f167cb4e 894 v4l_dbg(2, msp_debug, client, "detection still in progress\n");
7e8b09ea
HV		 895 }
896 if (std == 1) {
f167cb4e 897 v4l_dbg(1, msp_debug, client, "detection still in progress after 10 tries. giving up.\n");
7e8b09ea
HV		 898 continue;
899 }
900
901 unmute:
5af0c8f6 902 state->std = std;
f167cb4e 903 v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n",
5af0c8f6 904 msp_standard_std_name(std), std);
7e8b09ea
HV		 905
906 /* unmute: dispatch sound to scart output, set scart volume */
907 msp_set_audio(client);
908
909 /* restore ACB */
910 if (msp_write_dsp(client, 0x13, state->acb))
911 return -1;
912
8a4b275f
HV		 913 if (state->has_i2s_conf)
914 msp_write_dem(client, 0x40, state->i2s_mode);
7e8b09ea 915 }
f167cb4e 916 v4l_dbg(1, msp_debug, client, "thread: exit\n");
7e8b09ea
HV		 917 return 0;
918}
919
8a4b275f 920static void msp34xxg_detect_stereo(struct i2c_client *client)
7e8b09ea
HV		 921{
922 struct msp_state *state = i2c_get_clientdata(client);
923
924 int status = msp_read_dem(client, 0x0200);
925 int is_bilingual = status & 0x100;
926 int is_stereo = status & 0x40;
927
928 state->rxsubchans = 0;
929 if (is_stereo)
8a4b275f 930 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
7e8b09ea 931 else
8a4b275f 932 state->rxsubchans = V4L2_TUNER_SUB_MONO;
7e8b09ea 933 if (is_bilingual) {
8a4b275f 934 state->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
7e8b09ea
HV		 935 /* I'm supposed to check whether it's SAP or not
936 * and set only LANG2/SAP in this case. Yet, the MSP
937 * does a lot of work to hide this and handle everything
938 * the same way. I don't want to work around it so unless
939 * this is a problem, I'll handle SAP just like lang1/lang2.
940 */
941 }
f167cb4e 942 v4l_dbg(1, msp_debug, client, "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
7e8b09ea
HV		 943 status, is_stereo, is_bilingual, state->rxsubchans);
944}
945
044f324f 946static void msp34xxg_set_audmode(struct i2c_client *client)
7e8b09ea
HV		 947{
948 struct msp_state *state = i2c_get_clientdata(client);
949 int source;
950
8a4b275f 951 switch (state->audmode) {
7e8b09ea
HV		 952 case V4L2_TUNER_MODE_MONO:
953 source = 0; /* mono only */
954 break;
955 case V4L2_TUNER_MODE_STEREO:
956 source = 1; /* stereo or A|B, see comment in msp34xxg_get_v4l2_stereo() */
957 /* problem: that could also mean 2 (scart input) */
958 break;
959 case V4L2_TUNER_MODE_LANG1:
960 source = 3; /* stereo or A */
961 break;
962 case V4L2_TUNER_MODE_LANG2:
963 source = 4; /* stereo or B */
964 break;
965 default:
7e8b09ea
HV		 966 source = 1;
967 break;
968 }
7e8b09ea
HV		 969 msp34xxg_set_source(client, source);
970}
971
8a4b275f
HV		 972void msp_set_audmode(struct i2c_client *client)
973{
974 struct msp_state *state = i2c_get_clientdata(client);
975
976 switch (state->opmode) {
977 case OPMODE_MANUAL:
978 case OPMODE_AUTODETECT:
979 state->watch_stereo = 0;
980 msp3400c_set_audmode(client);
981 break;
982 case OPMODE_AUTOSELECT:
983 msp34xxg_set_audmode(client);
984 break;
985 }
986}
987
988void msp_detect_stereo(struct i2c_client *client)
989{
990 struct msp_state *state = i2c_get_clientdata(client);
991
992 switch (state->opmode) {
993 case OPMODE_MANUAL:
994 case OPMODE_AUTODETECT:
995 msp3400c_detect_stereo(client);
996 break;
997 case OPMODE_AUTOSELECT:
998 msp34xxg_detect_stereo(client);
999 break;
1000 }
1001}
1002
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