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 17 18 #include <linux/kernel.h> 19 #include <linux/module.h> 20 #include <linux/i2c.h> 21 #include <linux/freezer.h> 22 #include <linux/videodev2.h> 23 #include <media/v4l2-common.h> 24 #include <media/drv-intf/msp3400.h> 25 #include <linux/kthread.h> 26 #include <linux/suspend.h> 27 #include "msp3400-driver.h" 28 29 /* this one uses the automatic sound standard detection of newer msp34xx 30 chip versions */ 31 static struct { 32 int retval; 33 int main, second; 34 char *name; 35 v4l2_std_id std; 36 } msp_stdlist[] = { 37 { 0x0000, 0, 0, "could not detect sound standard", V4L2_STD_ALL }, 38 { 0x0001, 0, 0, "autodetect start", V4L2_STD_ALL }, 39 { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), 40 "4.5/4.72 M Dual FM-Stereo", V4L2_STD_MN }, 41 { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), 42 "5.5/5.74 B/G Dual FM-Stereo", V4L2_STD_BG }, 43 { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), 44 "6.5/6.25 D/K1 Dual FM-Stereo", V4L2_STD_DK }, 45 { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), 46 "6.5/6.74 D/K2 Dual FM-Stereo", V4L2_STD_DK }, 47 { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), 48 "6.5 D/K FM-Mono (HDEV3)", V4L2_STD_DK }, 49 { 0x0007, MSP_CARRIER(6.5), MSP_CARRIER(5.7421875), 50 "6.5/5.74 D/K3 Dual FM-Stereo", V4L2_STD_DK }, 51 { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), 52 "5.5/5.85 B/G NICAM FM", V4L2_STD_BG }, 53 { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), 54 "6.5/5.85 L NICAM AM", V4L2_STD_L }, 55 { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), 56 "6.0/6.55 I NICAM FM", V4L2_STD_PAL_I }, 57 { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), 58 "6.5/5.85 D/K NICAM FM", V4L2_STD_DK }, 59 { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), 60 "6.5/5.85 D/K NICAM FM (HDEV2)", V4L2_STD_DK }, 61 { 0x000d, MSP_CARRIER(6.5), MSP_CARRIER(5.85), 62 "6.5/5.85 D/K NICAM FM (HDEV3)", V4L2_STD_DK }, 63 { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), 64 "4.5 M BTSC-Stereo", V4L2_STD_MTS }, 65 { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), 66 "4.5 M BTSC-Mono + SAP", V4L2_STD_MTS }, 67 { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), 68 "4.5 M EIA-J Japan Stereo", V4L2_STD_NTSC_M_JP }, 69 { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), 70 "10.7 FM-Stereo Radio", V4L2_STD_ALL }, 71 { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), 72 "6.5 SAT-Mono", V4L2_STD_ALL }, 73 { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), 74 "7.02/7.20 SAT-Stereo", V4L2_STD_ALL }, 75 { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), 76 "7.2 SAT ADR", V4L2_STD_ALL }, 77 { -1, 0, 0, NULL, 0 }, /* EOF */ 78 }; 79 80 static struct msp3400c_init_data_dem { 81 int fir1[6]; 82 int fir2[6]; 83 int cdo1; 84 int cdo2; 85 int ad_cv; 86 int mode_reg; 87 int dsp_src; 88 int dsp_matrix; 89 } msp3400c_init_data[] = { 90 { /* AM (for carrier detect / msp3400) */ 91 {75, 19, 36, 35, 39, 40}, 92 {75, 19, 36, 35, 39, 40}, 93 MSP_CARRIER(5.5), MSP_CARRIER(5.5), 94 0x00d0, 0x0500, 0x0020, 0x3000 95 }, { /* AM (for carrier detect / msp3410) */ 96 {-1, -1, -8, 2, 59, 126}, 97 {-1, -1, -8, 2, 59, 126}, 98 MSP_CARRIER(5.5), MSP_CARRIER(5.5), 99 0x00d0, 0x0100, 0x0020, 0x3000 100 }, { /* FM Radio */ 101 {-8, -8, 4, 6, 78, 107}, 102 {-8, -8, 4, 6, 78, 107}, 103 MSP_CARRIER(10.7), MSP_CARRIER(10.7), 104 0x00d0, 0x0480, 0x0020, 0x3000 105 }, { /* Terrestrial FM-mono + FM-stereo */ 106 {3, 18, 27, 48, 66, 72}, 107 {3, 18, 27, 48, 66, 72}, 108 MSP_CARRIER(5.5), MSP_CARRIER(5.5), 109 0x00d0, 0x0480, 0x0030, 0x3000 110 }, { /* Sat FM-mono */ 111 { 1, 9, 14, 24, 33, 37}, 112 { 3, 18, 27, 48, 66, 72}, 113 MSP_CARRIER(6.5), MSP_CARRIER(6.5), 114 0x00c6, 0x0480, 0x0000, 0x3000 115 }, { /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */ 116 {-2, -8, -10, 10, 50, 86}, 117 {3, 18, 27, 48, 66, 72}, 118 MSP_CARRIER(5.5), MSP_CARRIER(5.5), 119 0x00d0, 0x0040, 0x0120, 0x3000 120 }, { /* NICAM/FM -- I (6.0/6.552) */ 121 {2, 4, -6, -4, 40, 94}, 122 {3, 18, 27, 48, 66, 72}, 123 MSP_CARRIER(6.0), MSP_CARRIER(6.0), 124 0x00d0, 0x0040, 0x0120, 0x3000 125 }, { /* NICAM/AM -- L (6.5/5.85) */ 126 {-2, -8, -10, 10, 50, 86}, 127 {-4, -12, -9, 23, 79, 126}, 128 MSP_CARRIER(6.5), MSP_CARRIER(6.5), 129 0x00c6, 0x0140, 0x0120, 0x7c00 130 }, 131 }; 132 133 struct msp3400c_carrier_detect { 134 int cdo; 135 char *name; 136 }; 137 138 static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = { 139 /* main carrier */ 140 { MSP_CARRIER(4.5), "4.5 NTSC" }, 141 { MSP_CARRIER(5.5), "5.5 PAL B/G" }, 142 { MSP_CARRIER(6.0), "6.0 PAL I" }, 143 { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" } 144 }; 145 146 static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = { 147 /* PAL B/G */ 148 { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" }, 149 { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" } 150 }; 151 152 static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = { 153 /* PAL SAT / SECAM */ 154 { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" }, 155 { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" }, 156 { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" }, 157 { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" }, 158 { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" }, 159 { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" }, 160 }; 161 162 /* ------------------------------------------------------------------------ */ 163 164 const char *msp_standard_std_name(int std) 165 { 166 int i; 167 168 for (i = 0; msp_stdlist[i].name != NULL; i++) 169 if (msp_stdlist[i].retval == std) 170 return msp_stdlist[i].name; 171 return "unknown"; 172 } 173 174 static v4l2_std_id msp_standard_std(int std) 175 { 176 int i; 177 178 for (i = 0; msp_stdlist[i].name != NULL; i++) 179 if (msp_stdlist[i].retval == std) 180 return msp_stdlist[i].std; 181 return V4L2_STD_ALL; 182 } 183 184 static void msp_set_source(struct i2c_client *client, u16 src) 185 { 186 struct msp_state *state = to_state(i2c_get_clientdata(client)); 187 188 if (msp_dolby) { 189 msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */ 190 msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */ 191 } else { 192 msp_write_dsp(client, 0x0008, src); 193 msp_write_dsp(client, 0x0009, src); 194 } 195 msp_write_dsp(client, 0x000a, src); 196 msp_write_dsp(client, 0x000b, src); 197 msp_write_dsp(client, 0x000c, src); 198 if (state->has_scart2_out) 199 msp_write_dsp(client, 0x0041, src); 200 } 201 202 void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2) 203 { 204 msp_write_dem(client, 0x0093, cdo1 & 0xfff); 205 msp_write_dem(client, 0x009b, cdo1 >> 12); 206 msp_write_dem(client, 0x00a3, cdo2 & 0xfff); 207 msp_write_dem(client, 0x00ab, cdo2 >> 12); 208 msp_write_dem(client, 0x0056, 0); /* LOAD_REG_1/2 */ 209 } 210 211 void msp3400c_set_mode(struct i2c_client *client, int mode) 212 { 213 struct msp_state *state = to_state(i2c_get_clientdata(client)); 214 struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode]; 215 int tuner = (state->route_in >> 3) & 1; 216 int i; 217 218 dev_dbg_lvl(&client->dev, 1, msp_debug, "set_mode: %d\n", mode); 219 state->mode = mode; 220 state->rxsubchans = V4L2_TUNER_SUB_MONO; 221 222 msp_write_dem(client, 0x00bb, data->ad_cv | (tuner ? 0x100 : 0)); 223 224 for (i = 5; i >= 0; i--) /* fir 1 */ 225 msp_write_dem(client, 0x0001, data->fir1[i]); 226 227 msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */ 228 msp_write_dem(client, 0x0005, 0x0040); 229 msp_write_dem(client, 0x0005, 0x0000); 230 for (i = 5; i >= 0; i--) 231 msp_write_dem(client, 0x0005, data->fir2[i]); 232 233 msp_write_dem(client, 0x0083, data->mode_reg); 234 235 msp3400c_set_carrier(client, data->cdo1, data->cdo2); 236 237 msp_set_source(client, data->dsp_src); 238 /* set prescales */ 239 240 /* volume prescale for SCART (AM mono input) */ 241 msp_write_dsp(client, 0x000d, 0x1900); 242 msp_write_dsp(client, 0x000e, data->dsp_matrix); 243 if (state->has_nicam) /* nicam prescale */ 244 msp_write_dsp(client, 0x0010, 0x5a00); 245 } 246 247 /* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP, 248 nor do they support stereo BTSC. */ 249 static void msp3400c_set_audmode(struct i2c_client *client) 250 { 251 static char *strmode[] = { 252 "mono", "stereo", "lang2", "lang1", "lang1+lang2" 253 }; 254 struct msp_state *state = to_state(i2c_get_clientdata(client)); 255 char *modestr = (state->audmode >= 0 && state->audmode < 5) ? 256 strmode[state->audmode] : "unknown"; 257 int src = 0; /* channel source: FM/AM, nicam or SCART */ 258 int audmode = state->audmode; 259 260 if (state->opmode == OPMODE_AUTOSELECT) { 261 /* this method would break everything, let's make sure 262 * it's never called 263 */ 264 dev_dbg_lvl(&client->dev, 1, msp_debug, 265 "set_audmode called with mode=%d instead of set_source (ignored)\n", 266 state->audmode); 267 return; 268 } 269 270 /* Note: for the C and D revs no NTSC stereo + SAP is possible as 271 the hardware does not support SAP. So the rxsubchans combination 272 of STEREO | LANG2 does not occur. */ 273 274 if (state->mode != MSP_MODE_EXTERN) { 275 /* switch to mono if only mono is available */ 276 if (state->rxsubchans == V4L2_TUNER_SUB_MONO) 277 audmode = V4L2_TUNER_MODE_MONO; 278 /* if bilingual */ 279 else if (state->rxsubchans & V4L2_TUNER_SUB_LANG2) { 280 /* and mono or stereo, then fallback to lang1 */ 281 if (audmode == V4L2_TUNER_MODE_MONO || 282 audmode == V4L2_TUNER_MODE_STEREO) 283 audmode = V4L2_TUNER_MODE_LANG1; 284 } 285 /* if stereo, and audmode is not mono, then switch to stereo */ 286 else if (audmode != V4L2_TUNER_MODE_MONO) 287 audmode = V4L2_TUNER_MODE_STEREO; 288 } 289 290 /* switch demodulator */ 291 switch (state->mode) { 292 case MSP_MODE_FM_TERRA: 293 dev_dbg_lvl(&client->dev, 1, msp_debug, "FM set_audmode: %s\n", modestr); 294 switch (audmode) { 295 case V4L2_TUNER_MODE_STEREO: 296 msp_write_dsp(client, 0x000e, 0x3001); 297 break; 298 case V4L2_TUNER_MODE_MONO: 299 case V4L2_TUNER_MODE_LANG1: 300 case V4L2_TUNER_MODE_LANG2: 301 case V4L2_TUNER_MODE_LANG1_LANG2: 302 msp_write_dsp(client, 0x000e, 0x3000); 303 break; 304 } 305 break; 306 case MSP_MODE_FM_SAT: 307 dev_dbg_lvl(&client->dev, 1, msp_debug, "SAT set_audmode: %s\n", modestr); 308 switch (audmode) { 309 case V4L2_TUNER_MODE_MONO: 310 msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5)); 311 break; 312 case V4L2_TUNER_MODE_STEREO: 313 case V4L2_TUNER_MODE_LANG1_LANG2: 314 msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02)); 315 break; 316 case V4L2_TUNER_MODE_LANG1: 317 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); 318 break; 319 case V4L2_TUNER_MODE_LANG2: 320 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); 321 break; 322 } 323 break; 324 case MSP_MODE_FM_NICAM1: 325 case MSP_MODE_FM_NICAM2: 326 case MSP_MODE_AM_NICAM: 327 dev_dbg_lvl(&client->dev, 1, msp_debug, 328 "NICAM set_audmode: %s\n", modestr); 329 if (state->nicam_on) 330 src = 0x0100; /* NICAM */ 331 break; 332 case MSP_MODE_BTSC: 333 dev_dbg_lvl(&client->dev, 1, msp_debug, 334 "BTSC set_audmode: %s\n", modestr); 335 break; 336 case MSP_MODE_EXTERN: 337 dev_dbg_lvl(&client->dev, 1, msp_debug, 338 "extern set_audmode: %s\n", modestr); 339 src = 0x0200; /* SCART */ 340 break; 341 case MSP_MODE_FM_RADIO: 342 dev_dbg_lvl(&client->dev, 1, msp_debug, 343 "FM-Radio set_audmode: %s\n", modestr); 344 break; 345 default: 346 dev_dbg_lvl(&client->dev, 1, msp_debug, "mono set_audmode\n"); 347 return; 348 } 349 350 /* switch audio */ 351 dev_dbg_lvl(&client->dev, 1, msp_debug, "set audmode %d\n", audmode); 352 switch (audmode) { 353 case V4L2_TUNER_MODE_STEREO: 354 case V4L2_TUNER_MODE_LANG1_LANG2: 355 src |= 0x0020; 356 break; 357 case V4L2_TUNER_MODE_MONO: 358 if (state->mode == MSP_MODE_AM_NICAM) { 359 dev_dbg_lvl(&client->dev, 1, msp_debug, "switching to AM mono\n"); 360 /* AM mono decoding is handled by tuner, not MSP chip */ 361 /* SCART switching control register */ 362 msp_set_scart(client, SCART_MONO, 0); 363 src = 0x0200; 364 break; 365 } 366 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO) 367 src = 0x0030; 368 break; 369 case V4L2_TUNER_MODE_LANG1: 370 break; 371 case V4L2_TUNER_MODE_LANG2: 372 src |= 0x0010; 373 break; 374 } 375 dev_dbg_lvl(&client->dev, 1, msp_debug, 376 "set_audmode final source/matrix = 0x%x\n", src); 377 378 msp_set_source(client, src); 379 } 380 381 static void msp3400c_print_mode(struct i2c_client *client) 382 { 383 struct msp_state *state = to_state(i2c_get_clientdata(client)); 384 385 if (state->main == state->second) 386 dev_dbg_lvl(&client->dev, 1, msp_debug, 387 "mono sound carrier: %d.%03d MHz\n", 388 state->main / 910000, (state->main / 910) % 1000); 389 else 390 dev_dbg_lvl(&client->dev, 1, msp_debug, 391 "main sound carrier: %d.%03d MHz\n", 392 state->main / 910000, (state->main / 910) % 1000); 393 if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2) 394 dev_dbg_lvl(&client->dev, 1, msp_debug, 395 "NICAM/FM carrier : %d.%03d MHz\n", 396 state->second / 910000, (state->second/910) % 1000); 397 if (state->mode == MSP_MODE_AM_NICAM) 398 dev_dbg_lvl(&client->dev, 1, msp_debug, 399 "NICAM/AM carrier : %d.%03d MHz\n", 400 state->second / 910000, (state->second / 910) % 1000); 401 if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) { 402 dev_dbg_lvl(&client->dev, 1, msp_debug, 403 "FM-stereo carrier : %d.%03d MHz\n", 404 state->second / 910000, (state->second / 910) % 1000); 405 } 406 } 407 408 /* ----------------------------------------------------------------------- */ 409 410 static int msp3400c_detect_stereo(struct i2c_client *client) 411 { 412 struct msp_state *state = to_state(i2c_get_clientdata(client)); 413 int val; 414 int rxsubchans = state->rxsubchans; 415 int newnicam = state->nicam_on; 416 int update = 0; 417 418 switch (state->mode) { 419 case MSP_MODE_FM_TERRA: 420 val = msp_read_dsp(client, 0x18); 421 if (val > 32767) 422 val -= 65536; 423 dev_dbg_lvl(&client->dev, 2, msp_debug, 424 "stereo detect register: %d\n", val); 425 if (val > 8192) { 426 rxsubchans = V4L2_TUNER_SUB_STEREO; 427 } else if (val < -4096) { 428 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; 429 } else { 430 rxsubchans = V4L2_TUNER_SUB_MONO; 431 } 432 newnicam = 0; 433 break; 434 case MSP_MODE_FM_NICAM1: 435 case MSP_MODE_FM_NICAM2: 436 case MSP_MODE_AM_NICAM: 437 val = msp_read_dem(client, 0x23); 438 dev_dbg_lvl(&client->dev, 2, msp_debug, "nicam sync=%d, mode=%d\n", 439 val & 1, (val & 0x1e) >> 1); 440 441 if (val & 1) { 442 /* nicam synced */ 443 switch ((val & 0x1e) >> 1) { 444 case 0: 445 case 8: 446 rxsubchans = V4L2_TUNER_SUB_STEREO; 447 break; 448 case 1: 449 case 9: 450 rxsubchans = V4L2_TUNER_SUB_MONO; 451 break; 452 case 2: 453 case 10: 454 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; 455 break; 456 default: 457 rxsubchans = V4L2_TUNER_SUB_MONO; 458 break; 459 } 460 newnicam = 1; 461 } else { 462 newnicam = 0; 463 rxsubchans = V4L2_TUNER_SUB_MONO; 464 } 465 break; 466 } 467 if (rxsubchans != state->rxsubchans) { 468 update = 1; 469 dev_dbg_lvl(&client->dev, 1, msp_debug, 470 "watch: rxsubchans %02x => %02x\n", 471 state->rxsubchans, rxsubchans); 472 state->rxsubchans = rxsubchans; 473 } 474 if (newnicam != state->nicam_on) { 475 update = 1; 476 dev_dbg_lvl(&client->dev, 1, msp_debug, "watch: nicam %d => %d\n", 477 state->nicam_on, newnicam); 478 state->nicam_on = newnicam; 479 } 480 return update; 481 } 482 483 /* 484 * A kernel thread for msp3400 control -- we don't want to block the 485 * in the ioctl while doing the sound carrier & stereo detect 486 */ 487 /* stereo/multilang monitoring */ 488 static void watch_stereo(struct i2c_client *client) 489 { 490 struct msp_state *state = to_state(i2c_get_clientdata(client)); 491 492 if (msp_detect_stereo(client)) 493 msp_set_audmode(client); 494 495 if (msp_once) 496 state->watch_stereo = 0; 497 } 498 499 int msp3400c_thread(void *data) 500 { 501 struct i2c_client *client = data; 502 struct msp_state *state = to_state(i2c_get_clientdata(client)); 503 struct msp3400c_carrier_detect *cd; 504 int count, max1, max2, val1, val2, val, i; 505 506 dev_dbg_lvl(&client->dev, 1, msp_debug, "msp3400 daemon started\n"); 507 state->detected_std = V4L2_STD_ALL; 508 set_freezable(); 509 for (;;) { 510 dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3400 thread: sleep\n"); 511 msp_sleep(state, -1); 512 dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3400 thread: wakeup\n"); 513 514 restart: 515 dev_dbg_lvl(&client->dev, 2, msp_debug, "thread: restart scan\n"); 516 state->restart = 0; 517 if (kthread_should_stop()) 518 break; 519 520 if (state->radio || MSP_MODE_EXTERN == state->mode) { 521 /* no carrier scan, just unmute */ 522 dev_dbg_lvl(&client->dev, 1, msp_debug, 523 "thread: no carrier scan\n"); 524 state->scan_in_progress = 0; 525 msp_update_volume(state); 526 continue; 527 } 528 529 /* mute audio */ 530 state->scan_in_progress = 1; 531 msp_update_volume(state); 532 533 msp3400c_set_mode(client, MSP_MODE_AM_DETECT); 534 val1 = val2 = 0; 535 max1 = max2 = -1; 536 state->watch_stereo = 0; 537 state->nicam_on = 0; 538 539 /* wait for tuner to settle down after a channel change */ 540 if (msp_sleep(state, 200)) 541 goto restart; 542 543 /* carrier detect pass #1 -- main carrier */ 544 cd = msp3400c_carrier_detect_main; 545 count = ARRAY_SIZE(msp3400c_carrier_detect_main); 546 547 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) { 548 /* autodetect doesn't work well with AM ... */ 549 max1 = 3; 550 count = 0; 551 dev_dbg_lvl(&client->dev, 1, msp_debug, "AM sound override\n"); 552 } 553 554 for (i = 0; i < count; i++) { 555 msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo); 556 if (msp_sleep(state, 100)) 557 goto restart; 558 val = msp_read_dsp(client, 0x1b); 559 if (val > 32767) 560 val -= 65536; 561 if (val1 < val) 562 val1 = val, max1 = i; 563 dev_dbg_lvl(&client->dev, 1, msp_debug, 564 "carrier1 val: %5d / %s\n", val, cd[i].name); 565 } 566 567 /* carrier detect pass #2 -- second (stereo) carrier */ 568 switch (max1) { 569 case 1: /* 5.5 */ 570 cd = msp3400c_carrier_detect_55; 571 count = ARRAY_SIZE(msp3400c_carrier_detect_55); 572 break; 573 case 3: /* 6.5 */ 574 cd = msp3400c_carrier_detect_65; 575 count = ARRAY_SIZE(msp3400c_carrier_detect_65); 576 break; 577 case 0: /* 4.5 */ 578 case 2: /* 6.0 */ 579 default: 580 cd = NULL; 581 count = 0; 582 break; 583 } 584 585 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) { 586 /* autodetect doesn't work well with AM ... */ 587 cd = NULL; 588 count = 0; 589 max2 = 0; 590 } 591 for (i = 0; i < count; i++) { 592 msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo); 593 if (msp_sleep(state, 100)) 594 goto restart; 595 val = msp_read_dsp(client, 0x1b); 596 if (val > 32767) 597 val -= 65536; 598 if (val2 < val) 599 val2 = val, max2 = i; 600 dev_dbg_lvl(&client->dev, 1, msp_debug, 601 "carrier2 val: %5d / %s\n", val, cd[i].name); 602 } 603 604 /* program the msp3400 according to the results */ 605 state->main = msp3400c_carrier_detect_main[max1].cdo; 606 switch (max1) { 607 case 1: /* 5.5 */ 608 state->detected_std = V4L2_STD_BG | V4L2_STD_PAL_H; 609 if (max2 == 0) { 610 /* B/G FM-stereo */ 611 state->second = msp3400c_carrier_detect_55[max2].cdo; 612 msp3400c_set_mode(client, MSP_MODE_FM_TERRA); 613 state->watch_stereo = 1; 614 } else if (max2 == 1 && state->has_nicam) { 615 /* B/G NICAM */ 616 state->second = msp3400c_carrier_detect_55[max2].cdo; 617 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1); 618 state->nicam_on = 1; 619 state->watch_stereo = 1; 620 } else { 621 goto no_second; 622 } 623 break; 624 case 2: /* 6.0 */ 625 /* PAL I NICAM */ 626 state->detected_std = V4L2_STD_PAL_I; 627 state->second = MSP_CARRIER(6.552); 628 msp3400c_set_mode(client, MSP_MODE_FM_NICAM2); 629 state->nicam_on = 1; 630 state->watch_stereo = 1; 631 break; 632 case 3: /* 6.5 */ 633 if (max2 == 1 || max2 == 2) { 634 /* D/K FM-stereo */ 635 state->second = msp3400c_carrier_detect_65[max2].cdo; 636 msp3400c_set_mode(client, MSP_MODE_FM_TERRA); 637 state->watch_stereo = 1; 638 state->detected_std = V4L2_STD_DK; 639 } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) { 640 /* L NICAM or AM-mono */ 641 state->second = msp3400c_carrier_detect_65[max2].cdo; 642 msp3400c_set_mode(client, MSP_MODE_AM_NICAM); 643 state->watch_stereo = 1; 644 state->detected_std = V4L2_STD_L; 645 } else if (max2 == 0 && state->has_nicam) { 646 /* D/K NICAM */ 647 state->second = msp3400c_carrier_detect_65[max2].cdo; 648 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1); 649 state->nicam_on = 1; 650 state->watch_stereo = 1; 651 state->detected_std = V4L2_STD_DK; 652 } else { 653 goto no_second; 654 } 655 break; 656 case 0: /* 4.5 */ 657 state->detected_std = V4L2_STD_MN; 658 /* fall-through */ 659 default: 660 no_second: 661 state->second = msp3400c_carrier_detect_main[max1].cdo; 662 msp3400c_set_mode(client, MSP_MODE_FM_TERRA); 663 break; 664 } 665 msp3400c_set_carrier(client, state->second, state->main); 666 667 /* unmute */ 668 state->scan_in_progress = 0; 669 msp3400c_set_audmode(client); 670 msp_update_volume(state); 671 672 if (msp_debug) 673 msp3400c_print_mode(client); 674 675 /* monitor tv audio mode, the first time don't wait 676 so long to get a quick stereo/bilingual result */ 677 count = 3; 678 while (state->watch_stereo) { 679 if (msp_sleep(state, count ? 1000 : 5000)) 680 goto restart; 681 if (count) 682 count--; 683 watch_stereo(client); 684 } 685 } 686 dev_dbg_lvl(&client->dev, 1, msp_debug, "thread: exit\n"); 687 return 0; 688 } 689 690 691 int msp3410d_thread(void *data) 692 { 693 struct i2c_client *client = data; 694 struct msp_state *state = to_state(i2c_get_clientdata(client)); 695 int val, i, std, count; 696 697 dev_dbg_lvl(&client->dev, 1, msp_debug, "msp3410 daemon started\n"); 698 state->detected_std = V4L2_STD_ALL; 699 set_freezable(); 700 for (;;) { 701 dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3410 thread: sleep\n"); 702 msp_sleep(state, -1); 703 dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3410 thread: wakeup\n"); 704 705 restart: 706 dev_dbg_lvl(&client->dev, 2, msp_debug, "thread: restart scan\n"); 707 state->restart = 0; 708 if (kthread_should_stop()) 709 break; 710 711 if (state->mode == MSP_MODE_EXTERN) { 712 /* no carrier scan needed, just unmute */ 713 dev_dbg_lvl(&client->dev, 1, msp_debug, 714 "thread: no carrier scan\n"); 715 state->scan_in_progress = 0; 716 msp_update_volume(state); 717 continue; 718 } 719 720 /* mute audio */ 721 state->scan_in_progress = 1; 722 msp_update_volume(state); 723 724 /* start autodetect. Note: autodetect is not supported for 725 NTSC-M and radio, hence we force the standard in those 726 cases. */ 727 if (state->radio) 728 std = 0x40; 729 else 730 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1; 731 state->watch_stereo = 0; 732 state->nicam_on = 0; 733 734 /* wait for tuner to settle down after a channel change */ 735 if (msp_sleep(state, 200)) 736 goto restart; 737 738 if (msp_debug) 739 dev_dbg_lvl(&client->dev, 2, msp_debug, 740 "setting standard: %s (0x%04x)\n", 741 msp_standard_std_name(std), std); 742 743 if (std != 1) { 744 /* programmed some specific mode */ 745 val = std; 746 } else { 747 /* triggered autodetect */ 748 msp_write_dem(client, 0x20, std); 749 for (;;) { 750 if (msp_sleep(state, 100)) 751 goto restart; 752 753 /* check results */ 754 val = msp_read_dem(client, 0x7e); 755 if (val < 0x07ff) 756 break; 757 dev_dbg_lvl(&client->dev, 2, msp_debug, 758 "detection still in progress\n"); 759 } 760 } 761 for (i = 0; msp_stdlist[i].name != NULL; i++) 762 if (msp_stdlist[i].retval == val) 763 break; 764 dev_dbg_lvl(&client->dev, 1, msp_debug, "current standard: %s (0x%04x)\n", 765 msp_standard_std_name(val), val); 766 state->main = msp_stdlist[i].main; 767 state->second = msp_stdlist[i].second; 768 state->std = val; 769 state->rxsubchans = V4L2_TUNER_SUB_MONO; 770 771 if (msp_amsound && !state->radio && 772 (state->v4l2_std & V4L2_STD_SECAM) && (val != 0x0009)) { 773 /* autodetection has failed, let backup */ 774 dev_dbg_lvl(&client->dev, 1, msp_debug, "autodetection failed, switching to backup standard: %s (0x%04x)\n", 775 msp_stdlist[8].name ? 776 msp_stdlist[8].name : "unknown", val); 777 state->std = val = 0x0009; 778 msp_write_dem(client, 0x20, val); 779 } else { 780 state->detected_std = msp_standard_std(state->std); 781 } 782 783 /* set stereo */ 784 switch (val) { 785 case 0x0008: /* B/G NICAM */ 786 case 0x000a: /* I NICAM */ 787 case 0x000b: /* D/K NICAM */ 788 if (val == 0x000a) 789 state->mode = MSP_MODE_FM_NICAM2; 790 else 791 state->mode = MSP_MODE_FM_NICAM1; 792 /* just turn on stereo */ 793 state->nicam_on = 1; 794 state->watch_stereo = 1; 795 break; 796 case 0x0009: 797 state->mode = MSP_MODE_AM_NICAM; 798 state->nicam_on = 1; 799 state->watch_stereo = 1; 800 break; 801 case 0x0020: /* BTSC */ 802 /* The pre-'G' models only have BTSC-mono */ 803 state->mode = MSP_MODE_BTSC; 804 break; 805 case 0x0040: /* FM radio */ 806 state->mode = MSP_MODE_FM_RADIO; 807 state->rxsubchans = V4L2_TUNER_SUB_STEREO; 808 /* not needed in theory if we have radio, but 809 short programming enables carrier mute */ 810 msp3400c_set_mode(client, MSP_MODE_FM_RADIO); 811 msp3400c_set_carrier(client, MSP_CARRIER(10.7), 812 MSP_CARRIER(10.7)); 813 break; 814 case 0x0002: 815 case 0x0003: 816 case 0x0004: 817 case 0x0005: 818 state->mode = MSP_MODE_FM_TERRA; 819 state->watch_stereo = 1; 820 break; 821 } 822 823 /* set various prescales */ 824 msp_write_dsp(client, 0x0d, 0x1900); /* scart */ 825 msp_write_dsp(client, 0x0e, 0x3000); /* FM */ 826 if (state->has_nicam) 827 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */ 828 829 if (state->has_i2s_conf) 830 msp_write_dem(client, 0x40, state->i2s_mode); 831 832 /* unmute */ 833 msp3400c_set_audmode(client); 834 state->scan_in_progress = 0; 835 msp_update_volume(state); 836 837 /* monitor tv audio mode, the first time don't wait 838 so long to get a quick stereo/bilingual result */ 839 count = 3; 840 while (state->watch_stereo) { 841 if (msp_sleep(state, count ? 1000 : 5000)) 842 goto restart; 843 if (count) 844 count--; 845 watch_stereo(client); 846 } 847 } 848 dev_dbg_lvl(&client->dev, 1, msp_debug, "thread: exit\n"); 849 return 0; 850 } 851 852 /* ----------------------------------------------------------------------- */ 853 854 /* msp34xxG + (autoselect no-thread) 855 * this one uses both automatic standard detection and automatic sound 856 * select which are available in the newer G versions 857 * struct msp: only norm, acb and source are really used in this mode 858 */ 859 860 static int msp34xxg_modus(struct i2c_client *client) 861 { 862 struct msp_state *state = to_state(i2c_get_clientdata(client)); 863 864 if (state->radio) { 865 dev_dbg_lvl(&client->dev, 1, msp_debug, "selected radio modus\n"); 866 return 0x0001; 867 } 868 if (state->v4l2_std == V4L2_STD_NTSC_M_JP) { 869 dev_dbg_lvl(&client->dev, 1, msp_debug, "selected M (EIA-J) modus\n"); 870 return 0x4001; 871 } 872 if (state->v4l2_std == V4L2_STD_NTSC_M_KR) { 873 dev_dbg_lvl(&client->dev, 1, msp_debug, "selected M (A2) modus\n"); 874 return 0x0001; 875 } 876 if (state->v4l2_std == V4L2_STD_SECAM_L) { 877 dev_dbg_lvl(&client->dev, 1, msp_debug, "selected SECAM-L modus\n"); 878 return 0x6001; 879 } 880 if (state->v4l2_std & V4L2_STD_MN) { 881 dev_dbg_lvl(&client->dev, 1, msp_debug, "selected M (BTSC) modus\n"); 882 return 0x2001; 883 } 884 return 0x7001; 885 } 886 887 static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in) 888 { 889 struct msp_state *state = to_state(i2c_get_clientdata(client)); 890 int source, matrix; 891 892 switch (state->audmode) { 893 case V4L2_TUNER_MODE_MONO: 894 source = 0; /* mono only */ 895 matrix = 0x30; 896 break; 897 case V4L2_TUNER_MODE_LANG2: 898 source = 4; /* stereo or B */ 899 matrix = 0x10; 900 break; 901 case V4L2_TUNER_MODE_LANG1_LANG2: 902 source = 1; /* stereo or A|B */ 903 matrix = 0x20; 904 break; 905 case V4L2_TUNER_MODE_LANG1: 906 source = 3; /* stereo or A */ 907 matrix = 0x00; 908 break; 909 case V4L2_TUNER_MODE_STEREO: 910 default: 911 source = 3; /* stereo or A */ 912 matrix = 0x20; 913 break; 914 } 915 916 if (in == MSP_DSP_IN_TUNER) 917 source = (source << 8) | 0x20; 918 /* the msp34x2g puts the MAIN_AVC, MAIN and AUX sources in 12, 13, 14 919 instead of 11, 12, 13. So we add one for that msp version. */ 920 else if (in >= MSP_DSP_IN_MAIN_AVC && state->has_dolby_pro_logic) 921 source = ((in + 1) << 8) | matrix; 922 else 923 source = (in << 8) | matrix; 924 925 dev_dbg_lvl(&client->dev, 1, msp_debug, 926 "set source to %d (0x%x) for output %02x\n", in, source, reg); 927 msp_write_dsp(client, reg, source); 928 } 929 930 static void msp34xxg_set_sources(struct i2c_client *client) 931 { 932 struct msp_state *state = to_state(i2c_get_clientdata(client)); 933 u32 in = state->route_in; 934 935 msp34xxg_set_source(client, 0x0008, (in >> 4) & 0xf); 936 /* quasi-peak detector is set to same input as the loudspeaker (MAIN) */ 937 msp34xxg_set_source(client, 0x000c, (in >> 4) & 0xf); 938 msp34xxg_set_source(client, 0x0009, (in >> 8) & 0xf); 939 msp34xxg_set_source(client, 0x000a, (in >> 12) & 0xf); 940 if (state->has_scart2_out) 941 msp34xxg_set_source(client, 0x0041, (in >> 16) & 0xf); 942 msp34xxg_set_source(client, 0x000b, (in >> 20) & 0xf); 943 } 944 945 /* (re-)initialize the msp34xxg */ 946 static void msp34xxg_reset(struct i2c_client *client) 947 { 948 struct msp_state *state = to_state(i2c_get_clientdata(client)); 949 int tuner = (state->route_in >> 3) & 1; 950 int modus; 951 952 /* initialize std to 1 (autodetect) to signal that no standard is 953 selected yet. */ 954 state->std = 1; 955 956 msp_reset(client); 957 958 if (state->has_i2s_conf) 959 msp_write_dem(client, 0x40, state->i2s_mode); 960 961 /* step-by-step initialisation, as described in the manual */ 962 modus = msp34xxg_modus(client); 963 modus |= tuner ? 0x100 : 0; 964 msp_write_dem(client, 0x30, modus); 965 966 /* write the dsps that may have an influence on 967 standard/audio autodetection right now */ 968 msp34xxg_set_sources(client); 969 970 msp_write_dsp(client, 0x0d, 0x1900); /* scart */ 971 msp_write_dsp(client, 0x0e, 0x3000); /* FM */ 972 if (state->has_nicam) 973 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */ 974 975 /* set identification threshold. Personally, I 976 * I set it to a higher value than the default 977 * of 0x190 to ignore noisy stereo signals. 978 * this needs tuning. (recommended range 0x00a0-0x03c0) 979 * 0x7f0 = forced mono mode 980 * 981 * a2 threshold for stereo/bilingual. 982 * Note: this register is part of the Manual/Compatibility mode. 983 * It is supported by all 'G'-family chips. 984 */ 985 msp_write_dem(client, 0x22, msp_stereo_thresh); 986 } 987 988 int msp34xxg_thread(void *data) 989 { 990 struct i2c_client *client = data; 991 struct msp_state *state = to_state(i2c_get_clientdata(client)); 992 int val, i; 993 994 dev_dbg_lvl(&client->dev, 1, msp_debug, "msp34xxg daemon started\n"); 995 state->detected_std = V4L2_STD_ALL; 996 set_freezable(); 997 for (;;) { 998 dev_dbg_lvl(&client->dev, 2, msp_debug, "msp34xxg thread: sleep\n"); 999 msp_sleep(state, -1); 1000 dev_dbg_lvl(&client->dev, 2, msp_debug, "msp34xxg thread: wakeup\n"); 1001 1002 restart: 1003 dev_dbg_lvl(&client->dev, 1, msp_debug, "thread: restart scan\n"); 1004 state->restart = 0; 1005 if (kthread_should_stop()) 1006 break; 1007 1008 if (state->mode == MSP_MODE_EXTERN) { 1009 /* no carrier scan needed, just unmute */ 1010 dev_dbg_lvl(&client->dev, 1, msp_debug, 1011 "thread: no carrier scan\n"); 1012 state->scan_in_progress = 0; 1013 msp_update_volume(state); 1014 continue; 1015 } 1016 1017 /* setup the chip*/ 1018 msp34xxg_reset(client); 1019 state->std = state->radio ? 0x40 : 1020 (state->force_btsc && msp_standard == 1) ? 32 : msp_standard; 1021 msp_write_dem(client, 0x20, state->std); 1022 /* start autodetect */ 1023 if (state->std != 1) 1024 goto unmute; 1025 1026 /* watch autodetect */ 1027 dev_dbg_lvl(&client->dev, 1, msp_debug, 1028 "started autodetect, waiting for result\n"); 1029 for (i = 0; i < 10; i++) { 1030 if (msp_sleep(state, 100)) 1031 goto restart; 1032 1033 /* check results */ 1034 val = msp_read_dem(client, 0x7e); 1035 if (val < 0x07ff) { 1036 state->std = val; 1037 break; 1038 } 1039 dev_dbg_lvl(&client->dev, 2, msp_debug, 1040 "detection still in progress\n"); 1041 } 1042 if (state->std == 1) { 1043 dev_dbg_lvl(&client->dev, 1, msp_debug, 1044 "detection still in progress after 10 tries. giving up.\n"); 1045 continue; 1046 } 1047 1048 unmute: 1049 dev_dbg_lvl(&client->dev, 1, msp_debug, 1050 "detected standard: %s (0x%04x)\n", 1051 msp_standard_std_name(state->std), state->std); 1052 state->detected_std = msp_standard_std(state->std); 1053 1054 if (state->std == 9) { 1055 /* AM NICAM mode */ 1056 msp_write_dsp(client, 0x0e, 0x7c00); 1057 } 1058 1059 /* unmute: dispatch sound to scart output, set scart volume */ 1060 msp_update_volume(state); 1061 1062 /* restore ACB */ 1063 if (msp_write_dsp(client, 0x13, state->acb)) 1064 return -1; 1065 1066 /* the periodic stereo/SAP check is only relevant for 1067 the 0x20 standard (BTSC) */ 1068 if (state->std != 0x20) 1069 continue; 1070 1071 state->watch_stereo = 1; 1072 1073 /* monitor tv audio mode, the first time don't wait 1074 in order to get a quick stereo/SAP update */ 1075 watch_stereo(client); 1076 while (state->watch_stereo) { 1077 watch_stereo(client); 1078 if (msp_sleep(state, 5000)) 1079 goto restart; 1080 } 1081 } 1082 dev_dbg_lvl(&client->dev, 1, msp_debug, "thread: exit\n"); 1083 return 0; 1084 } 1085 1086 static int msp34xxg_detect_stereo(struct i2c_client *client) 1087 { 1088 struct msp_state *state = to_state(i2c_get_clientdata(client)); 1089 int status = msp_read_dem(client, 0x0200); 1090 int is_bilingual = status & 0x100; 1091 int is_stereo = status & 0x40; 1092 int oldrx = state->rxsubchans; 1093 1094 if (state->mode == MSP_MODE_EXTERN) 1095 return 0; 1096 1097 state->rxsubchans = 0; 1098 if (is_stereo) 1099 state->rxsubchans = V4L2_TUNER_SUB_STEREO; 1100 else 1101 state->rxsubchans = V4L2_TUNER_SUB_MONO; 1102 if (is_bilingual) { 1103 if (state->std == 0x20) 1104 state->rxsubchans |= V4L2_TUNER_SUB_SAP; 1105 else 1106 state->rxsubchans = 1107 V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; 1108 } 1109 dev_dbg_lvl(&client->dev, 1, msp_debug, 1110 "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n", 1111 status, is_stereo, is_bilingual, state->rxsubchans); 1112 return (oldrx != state->rxsubchans); 1113 } 1114 1115 static void msp34xxg_set_audmode(struct i2c_client *client) 1116 { 1117 struct msp_state *state = to_state(i2c_get_clientdata(client)); 1118 1119 if (state->std == 0x20) { 1120 if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) && 1121 (state->audmode == V4L2_TUNER_MODE_LANG1_LANG2 || 1122 state->audmode == V4L2_TUNER_MODE_LANG2)) { 1123 msp_write_dem(client, 0x20, 0x21); 1124 } else { 1125 msp_write_dem(client, 0x20, 0x20); 1126 } 1127 } 1128 1129 msp34xxg_set_sources(client); 1130 } 1131 1132 void msp_set_audmode(struct i2c_client *client) 1133 { 1134 struct msp_state *state = to_state(i2c_get_clientdata(client)); 1135 1136 switch (state->opmode) { 1137 case OPMODE_MANUAL: 1138 case OPMODE_AUTODETECT: 1139 msp3400c_set_audmode(client); 1140 break; 1141 case OPMODE_AUTOSELECT: 1142 msp34xxg_set_audmode(client); 1143 break; 1144 } 1145 } 1146 1147 int msp_detect_stereo(struct i2c_client *client) 1148 { 1149 struct msp_state *state = to_state(i2c_get_clientdata(client)); 1150 1151 switch (state->opmode) { 1152 case OPMODE_MANUAL: 1153 case OPMODE_AUTODETECT: 1154 return msp3400c_detect_stereo(client); 1155 case OPMODE_AUTOSELECT: 1156 return msp34xxg_detect_stereo(client); 1157 } 1158 return 0; 1159 } 1160 1161