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 19 * 02110-1301, USA. 20 */ 21 22 23#include <linux/kernel.h> 24#include <linux/module.h> 25#include <linux/i2c.h> 26#include <linux/freezer.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 = to_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 = to_state(i2c_get_clientdata(client)); 189 struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode]; 190 int tuner = (state->route_in >> 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[] = { 227 "mono", "stereo", "lang2", "lang1", "lang1+lang2" 228 }; 229 struct msp_state *state = to_state(i2c_get_clientdata(client)); 230 char *modestr = (state->audmode >= 0 && state->audmode < 5) ? 231 strmode[state->audmode] : "unknown"; 232 int src = 0; /* channel source: FM/AM, nicam or SCART */ 233 int audmode = state->audmode; 234 235 if (state->opmode == OPMODE_AUTOSELECT) { 236 /* this method would break everything, let's make sure 237 * it's never called 238 */ 239 v4l_dbg(1, msp_debug, client, 240 "set_audmode called with mode=%d instead of set_source (ignored)\n", 241 state->audmode); 242 return; 243 } 244 245 /* Note: for the C and D revs no NTSC stereo + SAP is possible as 246 the hardware does not support SAP. So the rxsubchans combination 247 of STEREO | LANG2 does not occur. */ 248 249 if (state->mode != MSP_MODE_EXTERN) { 250 /* switch to mono if only mono is available */ 251 if (state->rxsubchans == V4L2_TUNER_SUB_MONO) 252 audmode = V4L2_TUNER_MODE_MONO; 253 /* if bilingual */ 254 else if (state->rxsubchans & V4L2_TUNER_SUB_LANG2) { 255 /* and mono or stereo, then fallback to lang1 */ 256 if (audmode == V4L2_TUNER_MODE_MONO || 257 audmode == V4L2_TUNER_MODE_STEREO) 258 audmode = V4L2_TUNER_MODE_LANG1; 259 } 260 /* if stereo, and audmode is not mono, then switch to stereo */ 261 else if (audmode != V4L2_TUNER_MODE_MONO) 262 audmode = V4L2_TUNER_MODE_STEREO; 263 } 264 265 /* switch demodulator */ 266 switch (state->mode) { 267 case MSP_MODE_FM_TERRA: 268 v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr); 269 switch (audmode) { 270 case V4L2_TUNER_MODE_STEREO: 271 msp_write_dsp(client, 0x000e, 0x3001); 272 break; 273 case V4L2_TUNER_MODE_MONO: 274 case V4L2_TUNER_MODE_LANG1: 275 case V4L2_TUNER_MODE_LANG2: 276 case V4L2_TUNER_MODE_LANG1_LANG2: 277 msp_write_dsp(client, 0x000e, 0x3000); 278 break; 279 } 280 break; 281 case MSP_MODE_FM_SAT: 282 v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr); 283 switch (audmode) { 284 case V4L2_TUNER_MODE_MONO: 285 msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5)); 286 break; 287 case V4L2_TUNER_MODE_STEREO: 288 case V4L2_TUNER_MODE_LANG1_LANG2: 289 msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02)); 290 break; 291 case V4L2_TUNER_MODE_LANG1: 292 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); 293 break; 294 case V4L2_TUNER_MODE_LANG2: 295 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); 296 break; 297 } 298 break; 299 case MSP_MODE_FM_NICAM1: 300 case MSP_MODE_FM_NICAM2: 301 case MSP_MODE_AM_NICAM: 302 v4l_dbg(1, msp_debug, client, 303 "NICAM set_audmode: %s\n", modestr); 304 if (state->nicam_on) 305 src = 0x0100; /* NICAM */ 306 break; 307 case MSP_MODE_BTSC: 308 v4l_dbg(1, msp_debug, client, 309 "BTSC set_audmode: %s\n", modestr); 310 break; 311 case MSP_MODE_EXTERN: 312 v4l_dbg(1, msp_debug, client, 313 "extern set_audmode: %s\n", modestr); 314 src = 0x0200; /* SCART */ 315 break; 316 case MSP_MODE_FM_RADIO: 317 v4l_dbg(1, msp_debug, client, 318 "FM-Radio set_audmode: %s\n", modestr); 319 break; 320 default: 321 v4l_dbg(1, msp_debug, client, "mono set_audmode\n"); 322 return; 323 } 324 325 /* switch audio */ 326 v4l_dbg(1, msp_debug, client, "set audmode %d\n", audmode); 327 switch (audmode) { 328 case V4L2_TUNER_MODE_STEREO: 329 case V4L2_TUNER_MODE_LANG1_LANG2: 330 src |= 0x0020; 331 break; 332 case V4L2_TUNER_MODE_MONO: 333 if (state->mode == MSP_MODE_AM_NICAM) { 334 v4l_dbg(1, msp_debug, client, "switching to AM mono\n"); 335 /* AM mono decoding is handled by tuner, not MSP chip */ 336 /* SCART switching control register */ 337 msp_set_scart(client, SCART_MONO, 0); 338 src = 0x0200; 339 break; 340 } 341 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO) 342 src = 0x0030; 343 break; 344 case V4L2_TUNER_MODE_LANG1: 345 break; 346 case V4L2_TUNER_MODE_LANG2: 347 src |= 0x0010; 348 break; 349 } 350 v4l_dbg(1, msp_debug, client, 351 "set_audmode final source/matrix = 0x%x\n", src); 352 353 msp_set_source(client, src); 354} 355 356static void msp3400c_print_mode(struct i2c_client *client) 357{ 358 struct msp_state *state = to_state(i2c_get_clientdata(client)); 359 360 if (state->main == state->second) 361 v4l_dbg(1, msp_debug, client, 362 "mono sound carrier: %d.%03d MHz\n", 363 state->main / 910000, (state->main / 910) % 1000); 364 else 365 v4l_dbg(1, msp_debug, client, 366 "main sound carrier: %d.%03d MHz\n", 367 state->main / 910000, (state->main / 910) % 1000); 368 if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2) 369 v4l_dbg(1, msp_debug, client, 370 "NICAM/FM carrier : %d.%03d MHz\n", 371 state->second / 910000, (state->second/910) % 1000); 372 if (state->mode == MSP_MODE_AM_NICAM) 373 v4l_dbg(1, msp_debug, client, 374 "NICAM/AM carrier : %d.%03d MHz\n", 375 state->second / 910000, (state->second / 910) % 1000); 376 if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) { 377 v4l_dbg(1, msp_debug, client, 378 "FM-stereo carrier : %d.%03d MHz\n", 379 state->second / 910000, (state->second / 910) % 1000); 380 } 381} 382 383/* ----------------------------------------------------------------------- */ 384 385static int msp3400c_detect_stereo(struct i2c_client *client) 386{ 387 struct msp_state *state = to_state(i2c_get_clientdata(client)); 388 int val; 389 int rxsubchans = state->rxsubchans; 390 int newnicam = state->nicam_on; 391 int update = 0; 392 393 switch (state->mode) { 394 case MSP_MODE_FM_TERRA: 395 val = msp_read_dsp(client, 0x18); 396 if (val > 32767) 397 val -= 65536; 398 v4l_dbg(2, msp_debug, client, 399 "stereo detect register: %d\n", val); 400 if (val > 8192) { 401 rxsubchans = V4L2_TUNER_SUB_STEREO; 402 } else if (val < -4096) { 403 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; 404 } else { 405 rxsubchans = V4L2_TUNER_SUB_MONO; 406 } 407 newnicam = 0; 408 break; 409 case MSP_MODE_FM_NICAM1: 410 case MSP_MODE_FM_NICAM2: 411 case MSP_MODE_AM_NICAM: 412 val = msp_read_dem(client, 0x23); 413 v4l_dbg(2, msp_debug, client, "nicam sync=%d, mode=%d\n", 414 val & 1, (val & 0x1e) >> 1); 415 416 if (val & 1) { 417 /* nicam synced */ 418 switch ((val & 0x1e) >> 1) { 419 case 0: 420 case 8: 421 rxsubchans = V4L2_TUNER_SUB_STEREO; 422 break; 423 case 1: 424 case 9: 425 rxsubchans = V4L2_TUNER_SUB_MONO; 426 break; 427 case 2: 428 case 10: 429 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; 430 break; 431 default: 432 rxsubchans = V4L2_TUNER_SUB_MONO; 433 break; 434 } 435 newnicam = 1; 436 } else { 437 newnicam = 0; 438 rxsubchans = V4L2_TUNER_SUB_MONO; 439 } 440 break; 441 } 442 if (rxsubchans != state->rxsubchans) { 443 update = 1; 444 v4l_dbg(1, msp_debug, client, 445 "watch: rxsubchans %02x => %02x\n", 446 state->rxsubchans, rxsubchans); 447 state->rxsubchans = rxsubchans; 448 } 449 if (newnicam != state->nicam_on) { 450 update = 1; 451 v4l_dbg(1, msp_debug, client, "watch: nicam %d => %d\n", 452 state->nicam_on, newnicam); 453 state->nicam_on = newnicam; 454 } 455 return update; 456} 457 458/* 459 * A kernel thread for msp3400 control -- we don't want to block the 460 * in the ioctl while doing the sound carrier & stereo detect 461 */ 462/* stereo/multilang monitoring */ 463static void watch_stereo(struct i2c_client *client) 464{ 465 struct msp_state *state = to_state(i2c_get_clientdata(client)); 466 467 if (msp_detect_stereo(client)) 468 msp_set_audmode(client); 469 470 if (msp_once) 471 state->watch_stereo = 0; 472} 473 474int msp3400c_thread(void *data) 475{ 476 struct i2c_client *client = data; 477 struct msp_state *state = to_state(i2c_get_clientdata(client)); 478 struct msp3400c_carrier_detect *cd; 479 int count, max1, max2, val1, val2, val, i; 480 481 v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n"); 482 set_freezable(); 483 for (;;) { 484 v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n"); 485 msp_sleep(state, -1); 486 v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n"); 487 488restart: 489 v4l_dbg(2, msp_debug, client, "thread: restart scan\n"); 490 state->restart = 0; 491 if (kthread_should_stop()) 492 break; 493 494 if (state->radio || MSP_MODE_EXTERN == state->mode) { 495 /* no carrier scan, just unmute */ 496 v4l_dbg(1, msp_debug, client, 497 "thread: no carrier scan\n"); 498 state->scan_in_progress = 0; 499 msp_update_volume(state); 500 continue; 501 } 502 503 /* mute audio */ 504 state->scan_in_progress = 1; 505 msp_update_volume(state); 506 507 msp3400c_set_mode(client, MSP_MODE_AM_DETECT); 508 val1 = val2 = 0; 509 max1 = max2 = -1; 510 state->watch_stereo = 0; 511 state->nicam_on = 0; 512 513 /* wait for tuner to settle down after a channel change */ 514 if (msp_sleep(state, 200)) 515 goto restart; 516 517 /* carrier detect pass #1 -- main carrier */ 518 cd = msp3400c_carrier_detect_main; 519 count = ARRAY_SIZE(msp3400c_carrier_detect_main); 520 521 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) { 522 /* autodetect doesn't work well with AM ... */ 523 max1 = 3; 524 count = 0; 525 v4l_dbg(1, msp_debug, client, "AM sound override\n"); 526 } 527 528 for (i = 0; i < count; i++) { 529 msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo); 530 if (msp_sleep(state, 100)) 531 goto restart; 532 val = msp_read_dsp(client, 0x1b); 533 if (val > 32767) 534 val -= 65536; 535 if (val1 < val) 536 val1 = val, max1 = i; 537 v4l_dbg(1, msp_debug, client, 538 "carrier1 val: %5d / %s\n", val, cd[i].name); 539 } 540 541 /* carrier detect pass #2 -- second (stereo) carrier */ 542 switch (max1) { 543 case 1: /* 5.5 */ 544 cd = msp3400c_carrier_detect_55; 545 count = ARRAY_SIZE(msp3400c_carrier_detect_55); 546 break; 547 case 3: /* 6.5 */ 548 cd = msp3400c_carrier_detect_65; 549 count = ARRAY_SIZE(msp3400c_carrier_detect_65); 550 break; 551 case 0: /* 4.5 */ 552 case 2: /* 6.0 */ 553 default: 554 cd = NULL; 555 count = 0; 556 break; 557 } 558 559 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) { 560 /* autodetect doesn't work well with AM ... */ 561 cd = NULL; 562 count = 0; 563 max2 = 0; 564 } 565 for (i = 0; i < count; i++) { 566 msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo); 567 if (msp_sleep(state, 100)) 568 goto restart; 569 val = msp_read_dsp(client, 0x1b); 570 if (val > 32767) 571 val -= 65536; 572 if (val2 < val) 573 val2 = val, max2 = i; 574 v4l_dbg(1, msp_debug, client, 575 "carrier2 val: %5d / %s\n", val, cd[i].name); 576 } 577 578 /* program the msp3400 according to the results */ 579 state->main = msp3400c_carrier_detect_main[max1].cdo; 580 switch (max1) { 581 case 1: /* 5.5 */ 582 if (max2 == 0) { 583 /* B/G FM-stereo */ 584 state->second = msp3400c_carrier_detect_55[max2].cdo; 585 msp3400c_set_mode(client, MSP_MODE_FM_TERRA); 586 state->watch_stereo = 1; 587 } else if (max2 == 1 && state->has_nicam) { 588 /* B/G NICAM */ 589 state->second = msp3400c_carrier_detect_55[max2].cdo; 590 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1); 591 state->nicam_on = 1; 592 state->watch_stereo = 1; 593 } else { 594 goto no_second; 595 } 596 break; 597 case 2: /* 6.0 */ 598 /* PAL I NICAM */ 599 state->second = MSP_CARRIER(6.552); 600 msp3400c_set_mode(client, MSP_MODE_FM_NICAM2); 601 state->nicam_on = 1; 602 state->watch_stereo = 1; 603 break; 604 case 3: /* 6.5 */ 605 if (max2 == 1 || max2 == 2) { 606 /* D/K FM-stereo */ 607 state->second = msp3400c_carrier_detect_65[max2].cdo; 608 msp3400c_set_mode(client, MSP_MODE_FM_TERRA); 609 state->watch_stereo = 1; 610 } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) { 611 /* L NICAM or AM-mono */ 612 state->second = msp3400c_carrier_detect_65[max2].cdo; 613 msp3400c_set_mode(client, MSP_MODE_AM_NICAM); 614 state->watch_stereo = 1; 615 } else if (max2 == 0 && state->has_nicam) { 616 /* D/K NICAM */ 617 state->second = msp3400c_carrier_detect_65[max2].cdo; 618 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1); 619 state->nicam_on = 1; 620 state->watch_stereo = 1; 621 } else { 622 goto no_second; 623 } 624 break; 625 case 0: /* 4.5 */ 626 default: 627no_second: 628 state->second = msp3400c_carrier_detect_main[max1].cdo; 629 msp3400c_set_mode(client, MSP_MODE_FM_TERRA); 630 break; 631 } 632 msp3400c_set_carrier(client, state->second, state->main); 633 634 /* unmute */ 635 state->scan_in_progress = 0; 636 msp3400c_set_audmode(client); 637 msp_update_volume(state); 638 639 if (msp_debug) 640 msp3400c_print_mode(client); 641 642 /* monitor tv audio mode, the first time don't wait 643 so long to get a quick stereo/bilingual result */ 644 count = 3; 645 while (state->watch_stereo) { 646 if (msp_sleep(state, count ? 1000 : 5000)) 647 goto restart; 648 if (count) 649 count--; 650 watch_stereo(client); 651 } 652 } 653 v4l_dbg(1, msp_debug, client, "thread: exit\n"); 654 return 0; 655} 656 657 658int msp3410d_thread(void *data) 659{ 660 struct i2c_client *client = data; 661 struct msp_state *state = to_state(i2c_get_clientdata(client)); 662 int val, i, std, count; 663 664 v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n"); 665 set_freezable(); 666 for (;;) { 667 v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n"); 668 msp_sleep(state, -1); 669 v4l_dbg(2, msp_debug, client, "msp3410 thread: wakeup\n"); 670 671restart: 672 v4l_dbg(2, msp_debug, client, "thread: restart scan\n"); 673 state->restart = 0; 674 if (kthread_should_stop()) 675 break; 676 677 if (state->mode == MSP_MODE_EXTERN) { 678 /* no carrier scan needed, just unmute */ 679 v4l_dbg(1, msp_debug, client, 680 "thread: no carrier scan\n"); 681 state->scan_in_progress = 0; 682 msp_update_volume(state); 683 continue; 684 } 685 686 /* mute audio */ 687 state->scan_in_progress = 1; 688 msp_update_volume(state); 689 690 /* start autodetect. Note: autodetect is not supported for 691 NTSC-M and radio, hence we force the standard in those 692 cases. */ 693 if (state->radio) 694 std = 0x40; 695 else 696 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1; 697 state->watch_stereo = 0; 698 state->nicam_on = 0; 699 700 /* wait for tuner to settle down after a channel change */ 701 if (msp_sleep(state, 200)) 702 goto restart; 703 704 if (msp_debug) 705 v4l_dbg(2, msp_debug, client, 706 "setting standard: %s (0x%04x)\n", 707 msp_standard_std_name(std), std); 708 709 if (std != 1) { 710 /* programmed some specific mode */ 711 val = std; 712 } else { 713 /* triggered autodetect */ 714 msp_write_dem(client, 0x20, std); 715 for (;;) { 716 if (msp_sleep(state, 100)) 717 goto restart; 718 719 /* check results */ 720 val = msp_read_dem(client, 0x7e); 721 if (val < 0x07ff) 722 break; 723 v4l_dbg(2, msp_debug, client, 724 "detection still in progress\n"); 725 } 726 } 727 for (i = 0; msp_stdlist[i].name != NULL; i++) 728 if (msp_stdlist[i].retval == val) 729 break; 730 v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n", 731 msp_standard_std_name(val), val); 732 state->main = msp_stdlist[i].main; 733 state->second = msp_stdlist[i].second; 734 state->std = val; 735 state->rxsubchans = V4L2_TUNER_SUB_MONO; 736 737 if (msp_amsound && !state->radio && 738 (state->v4l2_std & V4L2_STD_SECAM) && (val != 0x0009)) { 739 /* autodetection has failed, let backup */ 740 v4l_dbg(1, msp_debug, client, "autodetection failed," 741 " switching to backup standard: %s (0x%04x)\n", 742 msp_stdlist[8].name ? 743 msp_stdlist[8].name : "unknown", val); 744 state->std = val = 0x0009; 745 msp_write_dem(client, 0x20, val); 746 } 747 748 /* set stereo */ 749 switch (val) { 750 case 0x0008: /* B/G NICAM */ 751 case 0x000a: /* I NICAM */ 752 case 0x000b: /* D/K NICAM */ 753 if (val == 0x000a) 754 state->mode = MSP_MODE_FM_NICAM2; 755 else 756 state->mode = MSP_MODE_FM_NICAM1; 757 /* just turn on stereo */ 758 state->nicam_on = 1; 759 state->watch_stereo = 1; 760 break; 761 case 0x0009: 762 state->mode = MSP_MODE_AM_NICAM; 763 state->nicam_on = 1; 764 state->watch_stereo = 1; 765 break; 766 case 0x0020: /* BTSC */ 767 /* The pre-'G' models only have BTSC-mono */ 768 state->mode = MSP_MODE_BTSC; 769 break; 770 case 0x0040: /* FM radio */ 771 state->mode = MSP_MODE_FM_RADIO; 772 state->rxsubchans = V4L2_TUNER_SUB_STEREO; 773 /* not needed in theory if we have radio, but 774 short programming enables carrier mute */ 775 msp3400c_set_mode(client, MSP_MODE_FM_RADIO); 776 msp3400c_set_carrier(client, MSP_CARRIER(10.7), 777 MSP_CARRIER(10.7)); 778 break; 779 case 0x0002: 780 case 0x0003: 781 case 0x0004: 782 case 0x0005: 783 state->mode = MSP_MODE_FM_TERRA; 784 state->watch_stereo = 1; 785 break; 786 } 787 788 /* set various prescales */ 789 msp_write_dsp(client, 0x0d, 0x1900); /* scart */ 790 msp_write_dsp(client, 0x0e, 0x3000); /* FM */ 791 if (state->has_nicam) 792 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */ 793 794 if (state->has_i2s_conf) 795 msp_write_dem(client, 0x40, state->i2s_mode); 796 797 /* unmute */ 798 msp3400c_set_audmode(client); 799 state->scan_in_progress = 0; 800 msp_update_volume(state); 801 802 /* monitor tv audio mode, the first time don't wait 803 so long to get a quick stereo/bilingual result */ 804 count = 3; 805 while (state->watch_stereo) { 806 if (msp_sleep(state, count ? 1000 : 5000)) 807 goto restart; 808 if (count) 809 count--; 810 watch_stereo(client); 811 } 812 } 813 v4l_dbg(1, msp_debug, client, "thread: exit\n"); 814 return 0; 815} 816 817/* ----------------------------------------------------------------------- */ 818 819/* msp34xxG + (autoselect no-thread) 820 * this one uses both automatic standard detection and automatic sound 821 * select which are available in the newer G versions 822 * struct msp: only norm, acb and source are really used in this mode 823 */ 824 825static int msp34xxg_modus(struct i2c_client *client) 826{ 827 struct msp_state *state = to_state(i2c_get_clientdata(client)); 828 829 if (state->radio) { 830 v4l_dbg(1, msp_debug, client, "selected radio modus\n"); 831 return 0x0001; 832 } 833 if (state->v4l2_std == V4L2_STD_NTSC_M_JP) { 834 v4l_dbg(1, msp_debug, client, "selected M (EIA-J) modus\n"); 835 return 0x4001; 836 } 837 if (state->v4l2_std == V4L2_STD_NTSC_M_KR) { 838 v4l_dbg(1, msp_debug, client, "selected M (A2) modus\n"); 839 return 0x0001; 840 } 841 if (state->v4l2_std == V4L2_STD_SECAM_L) { 842 v4l_dbg(1, msp_debug, client, "selected SECAM-L modus\n"); 843 return 0x6001; 844 } 845 if (state->v4l2_std & V4L2_STD_MN) { 846 v4l_dbg(1, msp_debug, client, "selected M (BTSC) modus\n"); 847 return 0x2001; 848 } 849 return 0x7001; 850} 851 852static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in) 853 { 854 struct msp_state *state = to_state(i2c_get_clientdata(client)); 855 int source, matrix; 856 857 switch (state->audmode) { 858 case V4L2_TUNER_MODE_MONO: 859 source = 0; /* mono only */ 860 matrix = 0x30; 861 break; 862 case V4L2_TUNER_MODE_LANG2: 863 source = 4; /* stereo or B */ 864 matrix = 0x10; 865 break; 866 case V4L2_TUNER_MODE_LANG1_LANG2: 867 source = 1; /* stereo or A|B */ 868 matrix = 0x20; 869 break; 870 case V4L2_TUNER_MODE_LANG1: 871 source = 3; /* stereo or A */ 872 matrix = 0x00; 873 break; 874 case V4L2_TUNER_MODE_STEREO: 875 default: 876 source = 3; /* stereo or A */ 877 matrix = 0x20; 878 break; 879 } 880 881 if (in == MSP_DSP_IN_TUNER) 882 source = (source << 8) | 0x20; 883 /* the msp34x2g puts the MAIN_AVC, MAIN and AUX sources in 12, 13, 14 884 instead of 11, 12, 13. So we add one for that msp version. */ 885 else if (in >= MSP_DSP_IN_MAIN_AVC && state->has_dolby_pro_logic) 886 source = ((in + 1) << 8) | matrix; 887 else 888 source = (in << 8) | matrix; 889 890 v4l_dbg(1, msp_debug, client, 891 "set source to %d (0x%x) for output %02x\n", in, source, reg); 892 msp_write_dsp(client, reg, source); 893} 894 895static void msp34xxg_set_sources(struct i2c_client *client) 896{ 897 struct msp_state *state = to_state(i2c_get_clientdata(client)); 898 u32 in = state->route_in; 899 900 msp34xxg_set_source(client, 0x0008, (in >> 4) & 0xf); 901 /* quasi-peak detector is set to same input as the loudspeaker (MAIN) */ 902 msp34xxg_set_source(client, 0x000c, (in >> 4) & 0xf); 903 msp34xxg_set_source(client, 0x0009, (in >> 8) & 0xf); 904 msp34xxg_set_source(client, 0x000a, (in >> 12) & 0xf); 905 if (state->has_scart2_out) 906 msp34xxg_set_source(client, 0x0041, (in >> 16) & 0xf); 907 msp34xxg_set_source(client, 0x000b, (in >> 20) & 0xf); 908} 909 910/* (re-)initialize the msp34xxg */ 911static void msp34xxg_reset(struct i2c_client *client) 912{ 913 struct msp_state *state = to_state(i2c_get_clientdata(client)); 914 int tuner = (state->route_in >> 3) & 1; 915 int modus; 916 917 /* initialize std to 1 (autodetect) to signal that no standard is 918 selected yet. */ 919 state->std = 1; 920 921 msp_reset(client); 922 923 if (state->has_i2s_conf) 924 msp_write_dem(client, 0x40, state->i2s_mode); 925 926 /* step-by-step initialisation, as described in the manual */ 927 modus = msp34xxg_modus(client); 928 modus |= tuner ? 0x100 : 0; 929 msp_write_dem(client, 0x30, modus); 930 931 /* write the dsps that may have an influence on 932 standard/audio autodetection right now */ 933 msp34xxg_set_sources(client); 934 935 msp_write_dsp(client, 0x0d, 0x1900); /* scart */ 936 msp_write_dsp(client, 0x0e, 0x3000); /* FM */ 937 if (state->has_nicam) 938 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */ 939 940 /* set identification threshold. Personally, I 941 * I set it to a higher value than the default 942 * of 0x190 to ignore noisy stereo signals. 943 * this needs tuning. (recommended range 0x00a0-0x03c0) 944 * 0x7f0 = forced mono mode 945 * 946 * a2 threshold for stereo/bilingual. 947 * Note: this register is part of the Manual/Compatibility mode. 948 * It is supported by all 'G'-family chips. 949 */ 950 msp_write_dem(client, 0x22, msp_stereo_thresh); 951} 952 953int msp34xxg_thread(void *data) 954{ 955 struct i2c_client *client = data; 956 struct msp_state *state = to_state(i2c_get_clientdata(client)); 957 int val, i; 958 959 v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n"); 960 set_freezable(); 961 for (;;) { 962 v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n"); 963 msp_sleep(state, -1); 964 v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n"); 965 966restart: 967 v4l_dbg(1, msp_debug, client, "thread: restart scan\n"); 968 state->restart = 0; 969 if (kthread_should_stop()) 970 break; 971 972 if (state->mode == MSP_MODE_EXTERN) { 973 /* no carrier scan needed, just unmute */ 974 v4l_dbg(1, msp_debug, client, 975 "thread: no carrier scan\n"); 976 state->scan_in_progress = 0; 977 msp_update_volume(state); 978 continue; 979 } 980 981 /* setup the chip*/ 982 msp34xxg_reset(client); 983 state->std = state->radio ? 0x40 : 984 (state->force_btsc && msp_standard == 1) ? 32 : msp_standard; 985 msp_write_dem(client, 0x20, state->std); 986 /* start autodetect */ 987 if (state->std != 1) 988 goto unmute; 989 990 /* watch autodetect */ 991 v4l_dbg(1, msp_debug, client, 992 "started autodetect, waiting for result\n"); 993 for (i = 0; i < 10; i++) { 994 if (msp_sleep(state, 100)) 995 goto restart; 996 997 /* check results */ 998 val = msp_read_dem(client, 0x7e); 999 if (val < 0x07ff) { 1000 state->std = val; 1001 break; 1002 } 1003 v4l_dbg(2, msp_debug, client, 1004 "detection still in progress\n"); 1005 } 1006 if (state->std == 1) { 1007 v4l_dbg(1, msp_debug, client, 1008 "detection still in progress after 10 tries. giving up.\n"); 1009 continue; 1010 } 1011 1012unmute: 1013 v4l_dbg(1, msp_debug, client, 1014 "detected standard: %s (0x%04x)\n", 1015 msp_standard_std_name(state->std), state->std); 1016 1017 if (state->std == 9) { 1018 /* AM NICAM mode */ 1019 msp_write_dsp(client, 0x0e, 0x7c00); 1020 } 1021 1022 /* unmute: dispatch sound to scart output, set scart volume */ 1023 msp_update_volume(state); 1024 1025 /* restore ACB */ 1026 if (msp_write_dsp(client, 0x13, state->acb)) 1027 return -1; 1028 1029 /* the periodic stereo/SAP check is only relevant for 1030 the 0x20 standard (BTSC) */ 1031 if (state->std != 0x20) 1032 continue; 1033 1034 state->watch_stereo = 1; 1035 1036 /* monitor tv audio mode, the first time don't wait 1037 in order to get a quick stereo/SAP update */ 1038 watch_stereo(client); 1039 while (state->watch_stereo) { 1040 watch_stereo(client); 1041 if (msp_sleep(state, 5000)) 1042 goto restart; 1043 } 1044 } 1045 v4l_dbg(1, msp_debug, client, "thread: exit\n"); 1046 return 0; 1047} 1048 1049static int msp34xxg_detect_stereo(struct i2c_client *client) 1050{ 1051 struct msp_state *state = to_state(i2c_get_clientdata(client)); 1052 int status = msp_read_dem(client, 0x0200); 1053 int is_bilingual = status & 0x100; 1054 int is_stereo = status & 0x40; 1055 int oldrx = state->rxsubchans; 1056 1057 if (state->mode == MSP_MODE_EXTERN) 1058 return 0; 1059 1060 state->rxsubchans = 0; 1061 if (is_stereo) 1062 state->rxsubchans = V4L2_TUNER_SUB_STEREO; 1063 else 1064 state->rxsubchans = V4L2_TUNER_SUB_MONO; 1065 if (is_bilingual) { 1066 if (state->std == 0x20) 1067 state->rxsubchans |= V4L2_TUNER_SUB_SAP; 1068 else 1069 state->rxsubchans = 1070 V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; 1071 } 1072 v4l_dbg(1, msp_debug, client, 1073 "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n", 1074 status, is_stereo, is_bilingual, state->rxsubchans); 1075 return (oldrx != state->rxsubchans); 1076} 1077 1078static void msp34xxg_set_audmode(struct i2c_client *client) 1079{ 1080 struct msp_state *state = to_state(i2c_get_clientdata(client)); 1081 1082 if (state->std == 0x20) { 1083 if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) && 1084 (state->audmode == V4L2_TUNER_MODE_LANG1_LANG2 || 1085 state->audmode == V4L2_TUNER_MODE_LANG2)) { 1086 msp_write_dem(client, 0x20, 0x21); 1087 } else { 1088 msp_write_dem(client, 0x20, 0x20); 1089 } 1090 } 1091 1092 msp34xxg_set_sources(client); 1093} 1094 1095void msp_set_audmode(struct i2c_client *client) 1096{ 1097 struct msp_state *state = to_state(i2c_get_clientdata(client)); 1098 1099 switch (state->opmode) { 1100 case OPMODE_MANUAL: 1101 case OPMODE_AUTODETECT: 1102 msp3400c_set_audmode(client); 1103 break; 1104 case OPMODE_AUTOSELECT: 1105 msp34xxg_set_audmode(client); 1106 break; 1107 } 1108} 1109 1110int msp_detect_stereo(struct i2c_client *client) 1111{ 1112 struct msp_state *state = to_state(i2c_get_clientdata(client)); 1113 1114 switch (state->opmode) { 1115 case OPMODE_MANUAL: 1116 case OPMODE_AUTODETECT: 1117 return msp3400c_detect_stereo(client); 1118 case OPMODE_AUTOSELECT: 1119 return msp34xxg_detect_stereo(client); 1120 } 1121 return 0; 1122} 1123