msp3400-kthreads.c revision 2eb606db1134ce860cc0cbf8b533b6315d182e21
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> 29#include <media/msp3400.h> 30#include <linux/kthread.h> 31#include <linux/suspend.h> 32#include "msp3400-driver.h" 33 34/* this one uses the automatic sound standard detection of newer msp34xx 35 chip versions */ 36static struct { 37 int retval; 38 int main, second; 39 char *name; 40} msp_stdlist[] = { 41 { 0x0000, 0, 0, "could not detect sound standard" }, 42 { 0x0001, 0, 0, "autodetect start" }, 43 { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72 M Dual FM-Stereo" }, 44 { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74 B/G Dual FM-Stereo" }, 45 { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25 D/K1 Dual FM-Stereo" }, 46 { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74 D/K2 Dual FM-Stereo" }, 47 { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 D/K FM-Mono (HDEV3)" }, 48 { 0x0007, MSP_CARRIER(6.5), MSP_CARRIER(5.7421875), "6.5/5.74 D/K3 Dual FM-Stereo" }, 49 { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" }, 50 { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" }, 51 { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" }, 52 { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" }, 53 { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" }, 54 { 0x000d, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV3)" }, 55 { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" }, 56 { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" }, 57 { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" }, 58 { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" }, 59 { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" }, 60 { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" }, 61 { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" }, 62 { -1, 0, 0, NULL }, /* EOF */ 63}; 64 65static struct msp3400c_init_data_dem { 66 int fir1[6]; 67 int fir2[6]; 68 int cdo1; 69 int cdo2; 70 int ad_cv; 71 int mode_reg; 72 int dsp_src; 73 int dsp_matrix; 74} msp3400c_init_data[] = { 75 { /* AM (for carrier detect / msp3400) */ 76 {75, 19, 36, 35, 39, 40}, 77 {75, 19, 36, 35, 39, 40}, 78 MSP_CARRIER(5.5), MSP_CARRIER(5.5), 79 0x00d0, 0x0500, 0x0020, 0x3000 80 },{ /* AM (for carrier detect / msp3410) */ 81 {-1, -1, -8, 2, 59, 126}, 82 {-1, -1, -8, 2, 59, 126}, 83 MSP_CARRIER(5.5), MSP_CARRIER(5.5), 84 0x00d0, 0x0100, 0x0020, 0x3000 85 },{ /* FM Radio */ 86 {-8, -8, 4, 6, 78, 107}, 87 {-8, -8, 4, 6, 78, 107}, 88 MSP_CARRIER(10.7), MSP_CARRIER(10.7), 89 0x00d0, 0x0480, 0x0020, 0x3000 90 },{ /* Terrestial FM-mono + FM-stereo */ 91 {3, 18, 27, 48, 66, 72}, 92 {3, 18, 27, 48, 66, 72}, 93 MSP_CARRIER(5.5), MSP_CARRIER(5.5), 94 0x00d0, 0x0480, 0x0030, 0x3000 95 },{ /* Sat FM-mono */ 96 { 1, 9, 14, 24, 33, 37}, 97 { 3, 18, 27, 48, 66, 72}, 98 MSP_CARRIER(6.5), MSP_CARRIER(6.5), 99 0x00c6, 0x0480, 0x0000, 0x3000 100 },{ /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */ 101 {-2, -8, -10, 10, 50, 86}, 102 {3, 18, 27, 48, 66, 72}, 103 MSP_CARRIER(5.5), MSP_CARRIER(5.5), 104 0x00d0, 0x0040, 0x0120, 0x3000 105 },{ /* NICAM/FM -- I (6.0/6.552) */ 106 {2, 4, -6, -4, 40, 94}, 107 {3, 18, 27, 48, 66, 72}, 108 MSP_CARRIER(6.0), MSP_CARRIER(6.0), 109 0x00d0, 0x0040, 0x0120, 0x3000 110 },{ /* NICAM/AM -- L (6.5/5.85) */ 111 {-2, -8, -10, 10, 50, 86}, 112 {-4, -12, -9, 23, 79, 126}, 113 MSP_CARRIER(6.5), MSP_CARRIER(6.5), 114 0x00c6, 0x0140, 0x0120, 0x7c00 115 }, 116}; 117 118struct msp3400c_carrier_detect { 119 int cdo; 120 char *name; 121}; 122 123static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = { 124 /* main carrier */ 125 { MSP_CARRIER(4.5), "4.5 NTSC" }, 126 { MSP_CARRIER(5.5), "5.5 PAL B/G" }, 127 { MSP_CARRIER(6.0), "6.0 PAL I" }, 128 { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" } 129}; 130 131static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = { 132 /* PAL B/G */ 133 { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" }, 134 { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" } 135}; 136 137static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = { 138 /* PAL SAT / SECAM */ 139 { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" }, 140 { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" }, 141 { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" }, 142 { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" }, 143 { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" }, 144 { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" }, 145}; 146 147/* ------------------------------------------------------------------------ */ 148 149const char *msp_standard_std_name(int std) 150{ 151 int i; 152 153 for (i = 0; msp_stdlist[i].name != NULL; i++) 154 if (msp_stdlist[i].retval == std) 155 return msp_stdlist[i].name; 156 return "unknown"; 157} 158 159static void msp_set_source(struct i2c_client *client, u16 src) 160{ 161 struct msp_state *state = i2c_get_clientdata(client); 162 163 if (msp_dolby) { 164 msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */ 165 msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */ 166 } else { 167 msp_write_dsp(client, 0x0008, src); 168 msp_write_dsp(client, 0x0009, src); 169 } 170 msp_write_dsp(client, 0x000a, src); 171 msp_write_dsp(client, 0x000b, src); 172 msp_write_dsp(client, 0x000c, src); 173 if (state->has_scart2_out) 174 msp_write_dsp(client, 0x0041, src); 175} 176 177void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2) 178{ 179 msp_write_dem(client, 0x0093, cdo1 & 0xfff); 180 msp_write_dem(client, 0x009b, cdo1 >> 12); 181 msp_write_dem(client, 0x00a3, cdo2 & 0xfff); 182 msp_write_dem(client, 0x00ab, cdo2 >> 12); 183 msp_write_dem(client, 0x0056, 0); /* LOAD_REG_1/2 */ 184} 185 186void msp3400c_set_mode(struct i2c_client *client, int mode) 187{ 188 struct msp_state *state = i2c_get_clientdata(client); 189 struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode]; 190 int tuner = (state->routing.input >> 3) & 1; 191 int i; 192 193 v4l_dbg(1, msp_debug, client, "set_mode: %d\n", mode); 194 state->mode = mode; 195 state->rxsubchans = V4L2_TUNER_SUB_MONO; 196 197 msp_write_dem(client, 0x00bb, data->ad_cv | (tuner ? 0x100 : 0)); 198 199 for (i = 5; i >= 0; i--) /* fir 1 */ 200 msp_write_dem(client, 0x0001, data->fir1[i]); 201 202 msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */ 203 msp_write_dem(client, 0x0005, 0x0040); 204 msp_write_dem(client, 0x0005, 0x0000); 205 for (i = 5; i >= 0; i--) 206 msp_write_dem(client, 0x0005, data->fir2[i]); 207 208 msp_write_dem(client, 0x0083, data->mode_reg); 209 210 msp3400c_set_carrier(client, data->cdo1, data->cdo2); 211 212 msp_set_source(client, data->dsp_src); 213 /* set prescales */ 214 215 /* volume prescale for SCART (AM mono input) */ 216 msp_write_dsp(client, 0x000d, 0x1900); 217 msp_write_dsp(client, 0x000e, data->dsp_matrix); 218 if (state->has_nicam) /* nicam prescale */ 219 msp_write_dsp(client, 0x0010, 0x5a00); 220} 221 222/* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP, 223 nor do they support stereo BTSC. */ 224static void msp3400c_set_audmode(struct i2c_client *client) 225{ 226 static char *strmode[] = { "mono", "stereo", "lang2", "lang1", "lang1+lang2" }; 227 struct msp_state *state = i2c_get_clientdata(client); 228 char *modestr = (state->audmode >= 0 && state->audmode < 5) ? 229 strmode[state->audmode] : "unknown"; 230 int src = 0; /* channel source: FM/AM, nicam or SCART */ 231 int audmode = state->audmode; 232 233 if (state->opmode == OPMODE_AUTOSELECT) { 234 /* this method would break everything, let's make sure 235 * it's never called 236 */ 237 v4l_dbg(1, msp_debug, client, 238 "set_audmode called with mode=%d instead of set_source (ignored)\n", 239 state->audmode); 240 return; 241 } 242 243 /* Note: for the C and D revs no NTSC stereo + SAP is possible as 244 the hardware does not support SAP. So the rxsubchans combination 245 of STEREO | LANG2 does not occur. */ 246 247 if (state->mode != MSP_MODE_EXTERN) { 248 /* switch to mono if only mono is available */ 249 if (state->rxsubchans == V4L2_TUNER_SUB_MONO) 250 audmode = V4L2_TUNER_MODE_MONO; 251 /* if bilingual */ 252 else if (state->rxsubchans & V4L2_TUNER_SUB_LANG2) { 253 /* and mono or stereo, then fallback to lang1 */ 254 if (audmode == V4L2_TUNER_MODE_MONO || 255 audmode == V4L2_TUNER_MODE_STEREO) 256 audmode = V4L2_TUNER_MODE_LANG1; 257 } 258 /* if stereo, and audmode is not mono, then switch to stereo */ 259 else if (audmode != V4L2_TUNER_MODE_MONO) 260 audmode = V4L2_TUNER_MODE_STEREO; 261 } 262 263 /* switch demodulator */ 264 switch (state->mode) { 265 case MSP_MODE_FM_TERRA: 266 v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr); 267 switch (audmode) { 268 case V4L2_TUNER_MODE_STEREO: 269 msp_write_dsp(client, 0x000e, 0x3001); 270 break; 271 case V4L2_TUNER_MODE_MONO: 272 case V4L2_TUNER_MODE_LANG1: 273 case V4L2_TUNER_MODE_LANG2: 274 case V4L2_TUNER_MODE_LANG1_LANG2: 275 msp_write_dsp(client, 0x000e, 0x3000); 276 break; 277 } 278 break; 279 case MSP_MODE_FM_SAT: 280 v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr); 281 switch (audmode) { 282 case V4L2_TUNER_MODE_MONO: 283 msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5)); 284 break; 285 case V4L2_TUNER_MODE_STEREO: 286 case V4L2_TUNER_MODE_LANG1_LANG2: 287 msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02)); 288 break; 289 case V4L2_TUNER_MODE_LANG1: 290 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); 291 break; 292 case V4L2_TUNER_MODE_LANG2: 293 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); 294 break; 295 } 296 break; 297 case MSP_MODE_FM_NICAM1: 298 case MSP_MODE_FM_NICAM2: 299 case MSP_MODE_AM_NICAM: 300 v4l_dbg(1, msp_debug, client, "NICAM set_audmode: %s\n",modestr); 301 if (state->nicam_on) 302 src = 0x0100; /* NICAM */ 303 break; 304 case MSP_MODE_BTSC: 305 v4l_dbg(1, msp_debug, client, "BTSC set_audmode: %s\n",modestr); 306 break; 307 case MSP_MODE_EXTERN: 308 v4l_dbg(1, msp_debug, client, "extern set_audmode: %s\n",modestr); 309 src = 0x0200; /* SCART */ 310 break; 311 case MSP_MODE_FM_RADIO: 312 v4l_dbg(1, msp_debug, client, "FM-Radio set_audmode: %s\n",modestr); 313 break; 314 default: 315 v4l_dbg(1, msp_debug, client, "mono set_audmode\n"); 316 return; 317 } 318 319 /* switch audio */ 320 v4l_dbg(1, msp_debug, client, "set audmode %d\n", audmode); 321 switch (audmode) { 322 case V4L2_TUNER_MODE_STEREO: 323 case V4L2_TUNER_MODE_LANG1_LANG2: 324 src |= 0x0020; 325 break; 326 case V4L2_TUNER_MODE_MONO: 327 if (state->mode == MSP_MODE_AM_NICAM) { 328 v4l_dbg(1, msp_debug, client, "switching to AM mono\n"); 329 /* AM mono decoding is handled by tuner, not MSP chip */ 330 /* SCART switching control register */ 331 msp_set_scart(client, SCART_MONO, 0); 332 src = 0x0200; 333 break; 334 } 335 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO) 336 src = 0x0030; 337 break; 338 case V4L2_TUNER_MODE_LANG1: 339 break; 340 case V4L2_TUNER_MODE_LANG2: 341 src |= 0x0010; 342 break; 343 } 344 v4l_dbg(1, msp_debug, client, "set_audmode final source/matrix = 0x%x\n", src); 345 346 msp_set_source(client, src); 347} 348 349static void msp3400c_print_mode(struct i2c_client *client) 350{ 351 struct msp_state *state = i2c_get_clientdata(client); 352 353 if (state->main == state->second) { 354 v4l_dbg(1, msp_debug, client, "mono sound carrier: %d.%03d MHz\n", 355 state->main / 910000, (state->main / 910) % 1000); 356 } else { 357 v4l_dbg(1, msp_debug, client, "main sound carrier: %d.%03d MHz\n", 358 state->main / 910000, (state->main / 910) % 1000); 359 } 360 if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2) 361 v4l_dbg(1, msp_debug, client, "NICAM/FM carrier : %d.%03d MHz\n", 362 state->second / 910000, (state->second/910) % 1000); 363 if (state->mode == MSP_MODE_AM_NICAM) 364 v4l_dbg(1, msp_debug, client, "NICAM/AM carrier : %d.%03d MHz\n", 365 state->second / 910000, (state->second / 910) % 1000); 366 if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) { 367 v4l_dbg(1, msp_debug, client, "FM-stereo carrier : %d.%03d MHz\n", 368 state->second / 910000, (state->second / 910) % 1000); 369 } 370} 371 372/* ----------------------------------------------------------------------- */ 373 374static int msp3400c_detect_stereo(struct i2c_client *client) 375{ 376 struct msp_state *state = i2c_get_clientdata(client); 377 int val; 378 int rxsubchans = state->rxsubchans; 379 int newnicam = state->nicam_on; 380 int update = 0; 381 382 switch (state->mode) { 383 case MSP_MODE_FM_TERRA: 384 val = msp_read_dsp(client, 0x18); 385 if (val > 32767) 386 val -= 65536; 387 v4l_dbg(2, msp_debug, client, "stereo detect register: %d\n", val); 388 if (val > 8192) { 389 rxsubchans = V4L2_TUNER_SUB_STEREO; 390 } else if (val < -4096) { 391 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; 392 } else { 393 rxsubchans = V4L2_TUNER_SUB_MONO; 394 } 395 newnicam = 0; 396 break; 397 case MSP_MODE_FM_NICAM1: 398 case MSP_MODE_FM_NICAM2: 399 case MSP_MODE_AM_NICAM: 400 val = msp_read_dem(client, 0x23); 401 v4l_dbg(2, msp_debug, client, "nicam sync=%d, mode=%d\n", 402 val & 1, (val & 0x1e) >> 1); 403 404 if (val & 1) { 405 /* nicam synced */ 406 switch ((val & 0x1e) >> 1) { 407 case 0: 408 case 8: 409 rxsubchans = V4L2_TUNER_SUB_STEREO; 410 break; 411 case 1: 412 case 9: 413 rxsubchans = V4L2_TUNER_SUB_MONO; 414 break; 415 case 2: 416 case 10: 417 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; 418 break; 419 default: 420 rxsubchans = V4L2_TUNER_SUB_MONO; 421 break; 422 } 423 newnicam = 1; 424 } else { 425 newnicam = 0; 426 rxsubchans = V4L2_TUNER_SUB_MONO; 427 } 428 break; 429 } 430 if (rxsubchans != state->rxsubchans) { 431 update = 1; 432 v4l_dbg(1, msp_debug, client, "watch: rxsubchans %02x => %02x\n", 433 state->rxsubchans, rxsubchans); 434 state->rxsubchans = rxsubchans; 435 } 436 if (newnicam != state->nicam_on) { 437 update = 1; 438 v4l_dbg(1, msp_debug, client, "watch: nicam %d => %d\n", 439 state->nicam_on, newnicam); 440 state->nicam_on = newnicam; 441 } 442 return update; 443} 444 445/* 446 * A kernel thread for msp3400 control -- we don't want to block the 447 * in the ioctl while doing the sound carrier & stereo detect 448 */ 449/* stereo/multilang monitoring */ 450static void watch_stereo(struct i2c_client *client) 451{ 452 struct msp_state *state = i2c_get_clientdata(client); 453 454 if (msp_detect_stereo(client)) { 455 msp_set_audmode(client); 456 } 457 458 if (msp_once) 459 state->watch_stereo = 0; 460} 461 462int msp3400c_thread(void *data) 463{ 464 struct i2c_client *client = data; 465 struct msp_state *state = i2c_get_clientdata(client); 466 struct msp3400c_carrier_detect *cd; 467 int count, max1, max2, val1, val2, val, this; 468 469 470 v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n"); 471 for (;;) { 472 v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n"); 473 msp_sleep(state, -1); 474 v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n"); 475 476 restart: 477 v4l_dbg(2, msp_debug, client, "thread: restart scan\n"); 478 state->restart = 0; 479 if (kthread_should_stop()) 480 break; 481 482 if (state->radio || MSP_MODE_EXTERN == state->mode) { 483 /* no carrier scan, just unmute */ 484 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n"); 485 state->scan_in_progress = 0; 486 state->rxsubchans = V4L2_TUNER_SUB_STEREO; 487 msp_set_audio(client); 488 continue; 489 } 490 491 /* mute audio */ 492 state->scan_in_progress = 1; 493 msp_set_audio(client); 494 495 msp3400c_set_mode(client, MSP_MODE_AM_DETECT); 496 val1 = val2 = 0; 497 max1 = max2 = -1; 498 state->watch_stereo = 0; 499 state->nicam_on = 0; 500 501 /* wait for tuner to settle down after a channel change */ 502 if (msp_sleep(state, 200)) 503 goto restart; 504 505 /* carrier detect pass #1 -- main carrier */ 506 cd = msp3400c_carrier_detect_main; 507 count = ARRAY_SIZE(msp3400c_carrier_detect_main); 508 509 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) { 510 /* autodetect doesn't work well with AM ... */ 511 max1 = 3; 512 count = 0; 513 v4l_dbg(1, msp_debug, client, "AM sound override\n"); 514 } 515 516 for (this = 0; this < count; this++) { 517 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo); 518 if (msp_sleep(state,100)) 519 goto restart; 520 val = msp_read_dsp(client, 0x1b); 521 if (val > 32767) 522 val -= 65536; 523 if (val1 < val) 524 val1 = val, max1 = this; 525 v4l_dbg(1, msp_debug, client, "carrier1 val: %5d / %s\n", val,cd[this].name); 526 } 527 528 /* carrier detect pass #2 -- second (stereo) carrier */ 529 switch (max1) { 530 case 1: /* 5.5 */ 531 cd = msp3400c_carrier_detect_55; 532 count = ARRAY_SIZE(msp3400c_carrier_detect_55); 533 break; 534 case 3: /* 6.5 */ 535 cd = msp3400c_carrier_detect_65; 536 count = ARRAY_SIZE(msp3400c_carrier_detect_65); 537 break; 538 case 0: /* 4.5 */ 539 case 2: /* 6.0 */ 540 default: 541 cd = NULL; 542 count = 0; 543 break; 544 } 545 546 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) { 547 /* autodetect doesn't work well with AM ... */ 548 cd = NULL; 549 count = 0; 550 max2 = 0; 551 } 552 for (this = 0; this < count; this++) { 553 msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo); 554 if (msp_sleep(state,100)) 555 goto restart; 556 val = msp_read_dsp(client, 0x1b); 557 if (val > 32767) 558 val -= 65536; 559 if (val2 < val) 560 val2 = val, max2 = this; 561 v4l_dbg(1, msp_debug, client, "carrier2 val: %5d / %s\n", val,cd[this].name); 562 } 563 564 /* program the msp3400 according to the results */ 565 state->main = msp3400c_carrier_detect_main[max1].cdo; 566 switch (max1) { 567 case 1: /* 5.5 */ 568 if (max2 == 0) { 569 /* B/G FM-stereo */ 570 state->second = msp3400c_carrier_detect_55[max2].cdo; 571 msp3400c_set_mode(client, MSP_MODE_FM_TERRA); 572 state->watch_stereo = 1; 573 } else if (max2 == 1 && state->has_nicam) { 574 /* B/G NICAM */ 575 state->second = msp3400c_carrier_detect_55[max2].cdo; 576 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1); 577 state->nicam_on = 1; 578 state->watch_stereo = 1; 579 } else { 580 goto no_second; 581 } 582 break; 583 case 2: /* 6.0 */ 584 /* PAL I NICAM */ 585 state->second = MSP_CARRIER(6.552); 586 msp3400c_set_mode(client, MSP_MODE_FM_NICAM2); 587 state->nicam_on = 1; 588 state->watch_stereo = 1; 589 break; 590 case 3: /* 6.5 */ 591 if (max2 == 1 || max2 == 2) { 592 /* D/K FM-stereo */ 593 state->second = msp3400c_carrier_detect_65[max2].cdo; 594 msp3400c_set_mode(client, MSP_MODE_FM_TERRA); 595 state->watch_stereo = 1; 596 } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) { 597 /* L NICAM or AM-mono */ 598 state->second = msp3400c_carrier_detect_65[max2].cdo; 599 msp3400c_set_mode(client, MSP_MODE_AM_NICAM); 600 state->watch_stereo = 1; 601 } else if (max2 == 0 && state->has_nicam) { 602 /* D/K NICAM */ 603 state->second = msp3400c_carrier_detect_65[max2].cdo; 604 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1); 605 state->nicam_on = 1; 606 state->watch_stereo = 1; 607 } else { 608 goto no_second; 609 } 610 break; 611 case 0: /* 4.5 */ 612 default: 613 no_second: 614 state->second = msp3400c_carrier_detect_main[max1].cdo; 615 msp3400c_set_mode(client, MSP_MODE_FM_TERRA); 616 break; 617 } 618 msp3400c_set_carrier(client, state->second, state->main); 619 620 /* unmute */ 621 state->scan_in_progress = 0; 622 msp3400c_set_audmode(client); 623 msp_set_audio(client); 624 625 if (msp_debug) 626 msp3400c_print_mode(client); 627 628 /* monitor tv audio mode, the first time don't wait 629 so long to get a quick stereo/bilingual result */ 630 count = 3; 631 while (state->watch_stereo) { 632 if (msp_sleep(state, count ? 1000 : 5000)) 633 goto restart; 634 if (count) count--; 635 watch_stereo(client); 636 } 637 } 638 v4l_dbg(1, msp_debug, client, "thread: exit\n"); 639 return 0; 640} 641 642 643int msp3410d_thread(void *data) 644{ 645 struct i2c_client *client = data; 646 struct msp_state *state = i2c_get_clientdata(client); 647 int val, i, std, count; 648 649 v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n"); 650 651 for (;;) { 652 v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n"); 653 msp_sleep(state,-1); 654 v4l_dbg(2, msp_debug, client, "msp3410 thread: wakeup\n"); 655 656 restart: 657 v4l_dbg(2, msp_debug, client, "thread: restart scan\n"); 658 state->restart = 0; 659 if (kthread_should_stop()) 660 break; 661 662 if (state->mode == MSP_MODE_EXTERN) { 663 /* no carrier scan needed, just unmute */ 664 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n"); 665 state->scan_in_progress = 0; 666 msp_set_audio(client); 667 continue; 668 } 669 670 /* mute audio */ 671 state->scan_in_progress = 1; 672 msp_set_audio(client); 673 674 /* start autodetect. Note: autodetect is not supported for 675 NTSC-M and radio, hence we force the standard in those cases. */ 676 if (state->radio) 677 std = 0x40; 678 else 679 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1; 680 state->watch_stereo = 0; 681 state->nicam_on = 0; 682 683 /* wait for tuner to settle down after a channel change */ 684 if (msp_sleep(state, 200)) 685 goto restart; 686 687 if (msp_debug) 688 v4l_dbg(2, msp_debug, client, "setting standard: %s (0x%04x)\n", 689 msp_standard_std_name(std), std); 690 691 if (std != 1) { 692 /* programmed some specific mode */ 693 val = std; 694 } else { 695 /* triggered autodetect */ 696 msp_write_dem(client, 0x20, std); 697 for (;;) { 698 if (msp_sleep(state, 100)) 699 goto restart; 700 701 /* check results */ 702 val = msp_read_dem(client, 0x7e); 703 if (val < 0x07ff) 704 break; 705 v4l_dbg(2, msp_debug, client, "detection still in progress\n"); 706 } 707 } 708 for (i = 0; msp_stdlist[i].name != NULL; i++) 709 if (msp_stdlist[i].retval == val) 710 break; 711 v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n", 712 msp_standard_std_name(val), val); 713 state->main = msp_stdlist[i].main; 714 state->second = msp_stdlist[i].second; 715 state->std = val; 716 state->rxsubchans = V4L2_TUNER_SUB_MONO; 717 718 if (msp_amsound && !state->radio && (state->v4l2_std & V4L2_STD_SECAM) && 719 (val != 0x0009)) { 720 /* autodetection has failed, let backup */ 721 v4l_dbg(1, msp_debug, client, "autodetection failed," 722 " switching to backup standard: %s (0x%04x)\n", 723 msp_stdlist[8].name ? msp_stdlist[8].name : "unknown",val); 724 state->std = val = 0x0009; 725 msp_write_dem(client, 0x20, val); 726 } 727 728 /* set stereo */ 729 switch (val) { 730 case 0x0008: /* B/G NICAM */ 731 case 0x000a: /* I NICAM */ 732 case 0x000b: /* D/K NICAM */ 733 if (val == 0x000a) 734 state->mode = MSP_MODE_FM_NICAM2; 735 else 736 state->mode = MSP_MODE_FM_NICAM1; 737 /* just turn on stereo */ 738 state->nicam_on = 1; 739 state->watch_stereo = 1; 740 break; 741 case 0x0009: 742 state->mode = MSP_MODE_AM_NICAM; 743 state->nicam_on = 1; 744 state->watch_stereo = 1; 745 break; 746 case 0x0020: /* BTSC */ 747 /* The pre-'G' models only have BTSC-mono */ 748 state->mode = MSP_MODE_BTSC; 749 break; 750 case 0x0040: /* FM radio */ 751 state->mode = MSP_MODE_FM_RADIO; 752 state->rxsubchans = V4L2_TUNER_SUB_STEREO; 753 /* not needed in theory if we have radio, but 754 short programming enables carrier mute */ 755 msp3400c_set_mode(client, MSP_MODE_FM_RADIO); 756 msp3400c_set_carrier(client, MSP_CARRIER(10.7), 757 MSP_CARRIER(10.7)); 758 break; 759 case 0x0002: 760 case 0x0003: 761 case 0x0004: 762 case 0x0005: 763 state->mode = MSP_MODE_FM_TERRA; 764 state->watch_stereo = 1; 765 break; 766 } 767 768 /* set various prescales */ 769 msp_write_dsp(client, 0x0d, 0x1900); /* scart */ 770 msp_write_dsp(client, 0x0e, 0x3000); /* FM */ 771 if (state->has_nicam) 772 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */ 773 774 if (state->has_i2s_conf) 775 msp_write_dem(client, 0x40, state->i2s_mode); 776 777 /* unmute */ 778 msp3400c_set_audmode(client); 779 state->scan_in_progress = 0; 780 msp_set_audio(client); 781 782 /* monitor tv audio mode, the first time don't wait 783 so long to get a quick stereo/bilingual result */ 784 count = 3; 785 while (state->watch_stereo) { 786 if (msp_sleep(state, count ? 1000 : 5000)) 787 goto restart; 788 if (count) count--; 789 watch_stereo(client); 790 } 791 } 792 v4l_dbg(1, msp_debug, client, "thread: exit\n"); 793 return 0; 794} 795 796/* ----------------------------------------------------------------------- */ 797 798/* msp34xxG + (autoselect no-thread) 799 * this one uses both automatic standard detection and automatic sound 800 * select which are available in the newer G versions 801 * struct msp: only norm, acb and source are really used in this mode 802 */ 803 804static int msp34xxg_modus(struct i2c_client *client) 805{ 806 struct msp_state *state = i2c_get_clientdata(client); 807 808 if (state->radio) { 809 v4l_dbg(1, msp_debug, client, "selected radio modus\n"); 810 return 0x0001; 811 } 812 813 if (state->v4l2_std & V4L2_STD_PAL) { 814 v4l_dbg(1, msp_debug, client, "selected PAL modus\n"); 815 return 0x7001; 816 } 817 if (state->v4l2_std == V4L2_STD_NTSC_M_JP) { 818 v4l_dbg(1, msp_debug, client, "selected M (EIA-J) modus\n"); 819 return 0x4001; 820 } 821 if (state->v4l2_std == V4L2_STD_NTSC_M_KR) { 822 v4l_dbg(1, msp_debug, client, "selected M (A2) modus\n"); 823 return 0x0001; 824 } 825 if (state->v4l2_std & V4L2_STD_MN) { 826 v4l_dbg(1, msp_debug, client, "selected M (BTSC) modus\n"); 827 return 0x2001; 828 } 829 if (state->v4l2_std & V4L2_STD_SECAM) { 830 v4l_dbg(1, msp_debug, client, "selected SECAM modus\n"); 831 return 0x6001; 832 } 833 return 0x0001; 834} 835 836static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in) 837 { 838 struct msp_state *state = i2c_get_clientdata(client); 839 int source, matrix; 840 841 switch (state->audmode) { 842 case V4L2_TUNER_MODE_MONO: 843 source = 0; /* mono only */ 844 matrix = 0x30; 845 break; 846 case V4L2_TUNER_MODE_LANG2: 847 source = 4; /* stereo or B */ 848 matrix = 0x10; 849 break; 850 case V4L2_TUNER_MODE_LANG1_LANG2: 851 source = 1; /* stereo or A|B */ 852 matrix = 0x20; 853 break; 854 case V4L2_TUNER_MODE_STEREO: 855 case V4L2_TUNER_MODE_LANG1: 856 default: 857 source = 3; /* stereo or A */ 858 matrix = 0x00; 859 break; 860 } 861 862 if (in == MSP_DSP_IN_TUNER) 863 source = (source << 8) | 0x20; 864 /* the msp34x2g puts the MAIN_AVC, MAIN and AUX sources in 12, 13, 14 865 instead of 11, 12, 13. So we add one for that msp version. */ 866 else if (in >= MSP_DSP_IN_MAIN_AVC && state->has_dolby_pro_logic) 867 source = ((in + 1) << 8) | matrix; 868 else 869 source = (in << 8) | matrix; 870 871 v4l_dbg(1, msp_debug, client, "set source to %d (0x%x) for output %02x\n", 872 in, source, reg); 873 msp_write_dsp(client, reg, source); 874} 875 876static void msp34xxg_set_sources(struct i2c_client *client) 877{ 878 struct msp_state *state = i2c_get_clientdata(client); 879 u32 in = state->routing.input; 880 881 msp34xxg_set_source(client, 0x0008, (in >> 4) & 0xf); 882 /* quasi-peak detector is set to same input as the loudspeaker (MAIN) */ 883 msp34xxg_set_source(client, 0x000c, (in >> 4) & 0xf); 884 msp34xxg_set_source(client, 0x0009, (in >> 8) & 0xf); 885 msp34xxg_set_source(client, 0x000a, (in >> 12) & 0xf); 886 if (state->has_scart2_out) 887 msp34xxg_set_source(client, 0x0041, (in >> 16) & 0xf); 888 msp34xxg_set_source(client, 0x000b, (in >> 20) & 0xf); 889} 890 891/* (re-)initialize the msp34xxg */ 892static void msp34xxg_reset(struct i2c_client *client) 893{ 894 struct msp_state *state = i2c_get_clientdata(client); 895 int tuner = (state->routing.input >> 3) & 1; 896 int modus; 897 898 /* initialize std to 1 (autodetect) to signal that no standard is 899 selected yet. */ 900 state->std = 1; 901 902 msp_reset(client); 903 904 if (state->has_i2s_conf) 905 msp_write_dem(client, 0x40, state->i2s_mode); 906 907 /* step-by-step initialisation, as described in the manual */ 908 modus = msp34xxg_modus(client); 909 modus |= tuner ? 0x100 : 0; 910 msp_write_dem(client, 0x30, modus); 911 912 /* write the dsps that may have an influence on 913 standard/audio autodetection right now */ 914 msp34xxg_set_sources(client); 915 916 msp_write_dsp(client, 0x0d, 0x1900); /* scart */ 917 msp_write_dsp(client, 0x0e, 0x3000); /* FM */ 918 if (state->has_nicam) 919 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */ 920 921 /* set identification threshold. Personally, I 922 * I set it to a higher value than the default 923 * of 0x190 to ignore noisy stereo signals. 924 * this needs tuning. (recommended range 0x00a0-0x03c0) 925 * 0x7f0 = forced mono mode 926 * 927 * a2 threshold for stereo/bilingual. 928 * Note: this register is part of the Manual/Compatibility mode. 929 * It is supported by all 'G'-family chips. 930 */ 931 msp_write_dem(client, 0x22, msp_stereo_thresh); 932} 933 934int msp34xxg_thread(void *data) 935{ 936 struct i2c_client *client = data; 937 struct msp_state *state = i2c_get_clientdata(client); 938 int val, i; 939 940 v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n"); 941 942 for (;;) { 943 v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n"); 944 msp_sleep(state, -1); 945 v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n"); 946 947 restart: 948 v4l_dbg(1, msp_debug, client, "thread: restart scan\n"); 949 state->restart = 0; 950 if (kthread_should_stop()) 951 break; 952 953 if (state->mode == MSP_MODE_EXTERN) { 954 /* no carrier scan needed, just unmute */ 955 v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n"); 956 state->scan_in_progress = 0; 957 msp_set_audio(client); 958 continue; 959 } 960 961 /* setup the chip*/ 962 msp34xxg_reset(client); 963 state->std = state->radio ? 0x40 : msp_standard; 964 if (state->std != 1) 965 goto unmute; 966 /* start autodetect */ 967 msp_write_dem(client, 0x20, state->std); 968 969 /* watch autodetect */ 970 v4l_dbg(1, msp_debug, client, "started autodetect, waiting for result\n"); 971 for (i = 0; i < 10; i++) { 972 if (msp_sleep(state, 100)) 973 goto restart; 974 975 /* check results */ 976 val = msp_read_dem(client, 0x7e); 977 if (val < 0x07ff) { 978 state->std = val; 979 break; 980 } 981 v4l_dbg(2, msp_debug, client, "detection still in progress\n"); 982 } 983 if (state->std == 1) { 984 v4l_dbg(1, msp_debug, client, "detection still in progress after 10 tries. giving up.\n"); 985 continue; 986 } 987 988 unmute: 989 v4l_dbg(1, msp_debug, client, "detected standard: %s (0x%04x)\n", 990 msp_standard_std_name(state->std), state->std); 991 992 if (state->std == 9) { 993 /* AM NICAM mode */ 994 msp_write_dsp(client, 0x0e, 0x7c00); 995 } 996 997 /* unmute: dispatch sound to scart output, set scart volume */ 998 msp_set_audio(client); 999 1000 /* restore ACB */ 1001 if (msp_write_dsp(client, 0x13, state->acb)) 1002 return -1; 1003 1004 /* the periodic stereo/SAP check is only relevant for 1005 the 0x20 standard (BTSC) */ 1006 if (state->std != 0x20) 1007 continue; 1008 1009 state->watch_stereo = 1; 1010 1011 /* monitor tv audio mode, the first time don't wait 1012 in order to get a quick stereo/SAP update */ 1013 watch_stereo(client); 1014 while (state->watch_stereo) { 1015 watch_stereo(client); 1016 if (msp_sleep(state, 5000)) 1017 goto restart; 1018 } 1019 } 1020 v4l_dbg(1, msp_debug, client, "thread: exit\n"); 1021 return 0; 1022} 1023 1024static int msp34xxg_detect_stereo(struct i2c_client *client) 1025{ 1026 struct msp_state *state = i2c_get_clientdata(client); 1027 int status = msp_read_dem(client, 0x0200); 1028 int is_bilingual = status & 0x100; 1029 int is_stereo = status & 0x40; 1030 int oldrx = state->rxsubchans; 1031 1032 state->rxsubchans = 0; 1033 if (is_stereo) 1034 state->rxsubchans = V4L2_TUNER_SUB_STEREO; 1035 else 1036 state->rxsubchans = V4L2_TUNER_SUB_MONO; 1037 if (is_bilingual) { 1038 if (state->std == 0x20) 1039 state->rxsubchans |= V4L2_TUNER_SUB_SAP; 1040 else 1041 state->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; 1042 } 1043 v4l_dbg(1, msp_debug, client, "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n", 1044 status, is_stereo, is_bilingual, state->rxsubchans); 1045 return (oldrx != state->rxsubchans); 1046} 1047 1048static void msp34xxg_set_audmode(struct i2c_client *client) 1049{ 1050 struct msp_state *state = i2c_get_clientdata(client); 1051 1052 if (state->std == 0x20) { 1053 if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) && 1054 (state->audmode == V4L2_TUNER_MODE_LANG1_LANG2 || 1055 state->audmode == V4L2_TUNER_MODE_LANG2)) { 1056 msp_write_dem(client, 0x20, 0x21); 1057 } else { 1058 msp_write_dem(client, 0x20, 0x20); 1059 } 1060 } 1061 1062 msp34xxg_set_sources(client); 1063} 1064 1065void msp_set_audmode(struct i2c_client *client) 1066{ 1067 struct msp_state *state = i2c_get_clientdata(client); 1068 1069 switch (state->opmode) { 1070 case OPMODE_MANUAL: 1071 case OPMODE_AUTODETECT: 1072 msp3400c_set_audmode(client); 1073 break; 1074 case OPMODE_AUTOSELECT: 1075 msp34xxg_set_audmode(client); 1076 break; 1077 } 1078} 1079 1080int msp_detect_stereo(struct i2c_client *client) 1081{ 1082 struct msp_state *state = i2c_get_clientdata(client); 1083 1084 switch (state->opmode) { 1085 case OPMODE_MANUAL: 1086 case OPMODE_AUTODETECT: 1087 return msp3400c_detect_stereo(client); 1088 case OPMODE_AUTOSELECT: 1089 return msp34xxg_detect_stereo(client); 1090 } 1091 return 0; 1092} 1093 1094