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 v4l2_std_id std; 41} msp_stdlist[] = { 42 { 0x0000, 0, 0, "could not detect sound standard", V4L2_STD_ALL }, 43 { 0x0001, 0, 0, "autodetect start", V4L2_STD_ALL }, 44 { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), 45 "4.5/4.72 M Dual FM-Stereo", V4L2_STD_MN }, 46 { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), 47 "5.5/5.74 B/G Dual FM-Stereo", V4L2_STD_BG }, 48 { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), 49 "6.5/6.25 D/K1 Dual FM-Stereo", V4L2_STD_DK }, 50 { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), 51 "6.5/6.74 D/K2 Dual FM-Stereo", V4L2_STD_DK }, 52 { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), 53 "6.5 D/K FM-Mono (HDEV3)", V4L2_STD_DK }, 54 { 0x0007, MSP_CARRIER(6.5), MSP_CARRIER(5.7421875), 55 "6.5/5.74 D/K3 Dual FM-Stereo", V4L2_STD_DK }, 56 { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), 57 "5.5/5.85 B/G NICAM FM", V4L2_STD_BG }, 58 { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), 59 "6.5/5.85 L NICAM AM", V4L2_STD_L }, 60 { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), 61 "6.0/6.55 I NICAM FM", V4L2_STD_PAL_I }, 62 { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), 63 "6.5/5.85 D/K NICAM FM", V4L2_STD_DK }, 64 { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), 65 "6.5/5.85 D/K NICAM FM (HDEV2)", V4L2_STD_DK }, 66 { 0x000d, MSP_CARRIER(6.5), MSP_CARRIER(5.85), 67 "6.5/5.85 D/K NICAM FM (HDEV3)", V4L2_STD_DK }, 68 { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), 69 "4.5 M BTSC-Stereo", V4L2_STD_MTS }, 70 { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), 71 "4.5 M BTSC-Mono + SAP", V4L2_STD_MTS }, 72 { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), 73 "4.5 M EIA-J Japan Stereo", V4L2_STD_NTSC_M_JP }, 74 { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), 75 "10.7 FM-Stereo Radio", V4L2_STD_ALL }, 76 { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), 77 "6.5 SAT-Mono", V4L2_STD_ALL }, 78 { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), 79 "7.02/7.20 SAT-Stereo", V4L2_STD_ALL }, 80 { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), 81 "7.2 SAT ADR", V4L2_STD_ALL }, 82 { -1, 0, 0, NULL, 0 }, /* EOF */ 83}; 84 85static struct msp3400c_init_data_dem { 86 int fir1[6]; 87 int fir2[6]; 88 int cdo1; 89 int cdo2; 90 int ad_cv; 91 int mode_reg; 92 int dsp_src; 93 int dsp_matrix; 94} msp3400c_init_data[] = { 95 { /* AM (for carrier detect / msp3400) */ 96 {75, 19, 36, 35, 39, 40}, 97 {75, 19, 36, 35, 39, 40}, 98 MSP_CARRIER(5.5), MSP_CARRIER(5.5), 99 0x00d0, 0x0500, 0x0020, 0x3000 100 }, { /* AM (for carrier detect / msp3410) */ 101 {-1, -1, -8, 2, 59, 126}, 102 {-1, -1, -8, 2, 59, 126}, 103 MSP_CARRIER(5.5), MSP_CARRIER(5.5), 104 0x00d0, 0x0100, 0x0020, 0x3000 105 }, { /* FM Radio */ 106 {-8, -8, 4, 6, 78, 107}, 107 {-8, -8, 4, 6, 78, 107}, 108 MSP_CARRIER(10.7), MSP_CARRIER(10.7), 109 0x00d0, 0x0480, 0x0020, 0x3000 110 }, { /* Terrestrial FM-mono + FM-stereo */ 111 {3, 18, 27, 48, 66, 72}, 112 {3, 18, 27, 48, 66, 72}, 113 MSP_CARRIER(5.5), MSP_CARRIER(5.5), 114 0x00d0, 0x0480, 0x0030, 0x3000 115 }, { /* Sat FM-mono */ 116 { 1, 9, 14, 24, 33, 37}, 117 { 3, 18, 27, 48, 66, 72}, 118 MSP_CARRIER(6.5), MSP_CARRIER(6.5), 119 0x00c6, 0x0480, 0x0000, 0x3000 120 }, { /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */ 121 {-2, -8, -10, 10, 50, 86}, 122 {3, 18, 27, 48, 66, 72}, 123 MSP_CARRIER(5.5), MSP_CARRIER(5.5), 124 0x00d0, 0x0040, 0x0120, 0x3000 125 }, { /* NICAM/FM -- I (6.0/6.552) */ 126 {2, 4, -6, -4, 40, 94}, 127 {3, 18, 27, 48, 66, 72}, 128 MSP_CARRIER(6.0), MSP_CARRIER(6.0), 129 0x00d0, 0x0040, 0x0120, 0x3000 130 }, { /* NICAM/AM -- L (6.5/5.85) */ 131 {-2, -8, -10, 10, 50, 86}, 132 {-4, -12, -9, 23, 79, 126}, 133 MSP_CARRIER(6.5), MSP_CARRIER(6.5), 134 0x00c6, 0x0140, 0x0120, 0x7c00 135 }, 136}; 137 138struct msp3400c_carrier_detect { 139 int cdo; 140 char *name; 141}; 142 143static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = { 144 /* main carrier */ 145 { MSP_CARRIER(4.5), "4.5 NTSC" }, 146 { MSP_CARRIER(5.5), "5.5 PAL B/G" }, 147 { MSP_CARRIER(6.0), "6.0 PAL I" }, 148 { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" } 149}; 150 151static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = { 152 /* PAL B/G */ 153 { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" }, 154 { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" } 155}; 156 157static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = { 158 /* PAL SAT / SECAM */ 159 { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" }, 160 { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" }, 161 { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" }, 162 { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" }, 163 { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" }, 164 { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" }, 165}; 166 167/* ------------------------------------------------------------------------ */ 168 169const char *msp_standard_std_name(int std) 170{ 171 int i; 172 173 for (i = 0; msp_stdlist[i].name != NULL; i++) 174 if (msp_stdlist[i].retval == std) 175 return msp_stdlist[i].name; 176 return "unknown"; 177} 178 179static v4l2_std_id msp_standard_std(int std) 180{ 181 int i; 182 183 for (i = 0; msp_stdlist[i].name != NULL; i++) 184 if (msp_stdlist[i].retval == std) 185 return msp_stdlist[i].std; 186 return V4L2_STD_ALL; 187} 188 189static void msp_set_source(struct i2c_client *client, u16 src) 190{ 191 struct msp_state *state = to_state(i2c_get_clientdata(client)); 192 193 if (msp_dolby) { 194 msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */ 195 msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */ 196 } else { 197 msp_write_dsp(client, 0x0008, src); 198 msp_write_dsp(client, 0x0009, src); 199 } 200 msp_write_dsp(client, 0x000a, src); 201 msp_write_dsp(client, 0x000b, src); 202 msp_write_dsp(client, 0x000c, src); 203 if (state->has_scart2_out) 204 msp_write_dsp(client, 0x0041, src); 205} 206 207void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2) 208{ 209 msp_write_dem(client, 0x0093, cdo1 & 0xfff); 210 msp_write_dem(client, 0x009b, cdo1 >> 12); 211 msp_write_dem(client, 0x00a3, cdo2 & 0xfff); 212 msp_write_dem(client, 0x00ab, cdo2 >> 12); 213 msp_write_dem(client, 0x0056, 0); /* LOAD_REG_1/2 */ 214} 215 216void msp3400c_set_mode(struct i2c_client *client, int mode) 217{ 218 struct msp_state *state = to_state(i2c_get_clientdata(client)); 219 struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode]; 220 int tuner = (state->route_in >> 3) & 1; 221 int i; 222 223 v4l_dbg(1, msp_debug, client, "set_mode: %d\n", mode); 224 state->mode = mode; 225 state->rxsubchans = V4L2_TUNER_SUB_MONO; 226 227 msp_write_dem(client, 0x00bb, data->ad_cv | (tuner ? 0x100 : 0)); 228 229 for (i = 5; i >= 0; i--) /* fir 1 */ 230 msp_write_dem(client, 0x0001, data->fir1[i]); 231 232 msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */ 233 msp_write_dem(client, 0x0005, 0x0040); 234 msp_write_dem(client, 0x0005, 0x0000); 235 for (i = 5; i >= 0; i--) 236 msp_write_dem(client, 0x0005, data->fir2[i]); 237 238 msp_write_dem(client, 0x0083, data->mode_reg); 239 240 msp3400c_set_carrier(client, data->cdo1, data->cdo2); 241 242 msp_set_source(client, data->dsp_src); 243 /* set prescales */ 244 245 /* volume prescale for SCART (AM mono input) */ 246 msp_write_dsp(client, 0x000d, 0x1900); 247 msp_write_dsp(client, 0x000e, data->dsp_matrix); 248 if (state->has_nicam) /* nicam prescale */ 249 msp_write_dsp(client, 0x0010, 0x5a00); 250} 251 252/* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP, 253 nor do they support stereo BTSC. */ 254static void msp3400c_set_audmode(struct i2c_client *client) 255{ 256 static char *strmode[] = { 257 "mono", "stereo", "lang2", "lang1", "lang1+lang2" 258 }; 259 struct msp_state *state = to_state(i2c_get_clientdata(client)); 260 char *modestr = (state->audmode >= 0 && state->audmode < 5) ? 261 strmode[state->audmode] : "unknown"; 262 int src = 0; /* channel source: FM/AM, nicam or SCART */ 263 int audmode = state->audmode; 264 265 if (state->opmode == OPMODE_AUTOSELECT) { 266 /* this method would break everything, let's make sure 267 * it's never called 268 */ 269 v4l_dbg(1, msp_debug, client, 270 "set_audmode called with mode=%d instead of set_source (ignored)\n", 271 state->audmode); 272 return; 273 } 274 275 /* Note: for the C and D revs no NTSC stereo + SAP is possible as 276 the hardware does not support SAP. So the rxsubchans combination 277 of STEREO | LANG2 does not occur. */ 278 279 if (state->mode != MSP_MODE_EXTERN) { 280 /* switch to mono if only mono is available */ 281 if (state->rxsubchans == V4L2_TUNER_SUB_MONO) 282 audmode = V4L2_TUNER_MODE_MONO; 283 /* if bilingual */ 284 else if (state->rxsubchans & V4L2_TUNER_SUB_LANG2) { 285 /* and mono or stereo, then fallback to lang1 */ 286 if (audmode == V4L2_TUNER_MODE_MONO || 287 audmode == V4L2_TUNER_MODE_STEREO) 288 audmode = V4L2_TUNER_MODE_LANG1; 289 } 290 /* if stereo, and audmode is not mono, then switch to stereo */ 291 else if (audmode != V4L2_TUNER_MODE_MONO) 292 audmode = V4L2_TUNER_MODE_STEREO; 293 } 294 295 /* switch demodulator */ 296 switch (state->mode) { 297 case MSP_MODE_FM_TERRA: 298 v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr); 299 switch (audmode) { 300 case V4L2_TUNER_MODE_STEREO: 301 msp_write_dsp(client, 0x000e, 0x3001); 302 break; 303 case V4L2_TUNER_MODE_MONO: 304 case V4L2_TUNER_MODE_LANG1: 305 case V4L2_TUNER_MODE_LANG2: 306 case V4L2_TUNER_MODE_LANG1_LANG2: 307 msp_write_dsp(client, 0x000e, 0x3000); 308 break; 309 } 310 break; 311 case MSP_MODE_FM_SAT: 312 v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr); 313 switch (audmode) { 314 case V4L2_TUNER_MODE_MONO: 315 msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5)); 316 break; 317 case V4L2_TUNER_MODE_STEREO: 318 case V4L2_TUNER_MODE_LANG1_LANG2: 319 msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02)); 320 break; 321 case V4L2_TUNER_MODE_LANG1: 322 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); 323 break; 324 case V4L2_TUNER_MODE_LANG2: 325 msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); 326 break; 327 } 328 break; 329 case MSP_MODE_FM_NICAM1: 330 case MSP_MODE_FM_NICAM2: 331 case MSP_MODE_AM_NICAM: 332 v4l_dbg(1, msp_debug, client, 333 "NICAM set_audmode: %s\n", modestr); 334 if (state->nicam_on) 335 src = 0x0100; /* NICAM */ 336 break; 337 case MSP_MODE_BTSC: 338 v4l_dbg(1, msp_debug, client, 339 "BTSC set_audmode: %s\n", modestr); 340 break; 341 case MSP_MODE_EXTERN: 342 v4l_dbg(1, msp_debug, client, 343 "extern set_audmode: %s\n", modestr); 344 src = 0x0200; /* SCART */ 345 break; 346 case MSP_MODE_FM_RADIO: 347 v4l_dbg(1, msp_debug, client, 348 "FM-Radio set_audmode: %s\n", modestr); 349 break; 350 default: 351 v4l_dbg(1, msp_debug, client, "mono set_audmode\n"); 352 return; 353 } 354 355 /* switch audio */ 356 v4l_dbg(1, msp_debug, client, "set audmode %d\n", audmode); 357 switch (audmode) { 358 case V4L2_TUNER_MODE_STEREO: 359 case V4L2_TUNER_MODE_LANG1_LANG2: 360 src |= 0x0020; 361 break; 362 case V4L2_TUNER_MODE_MONO: 363 if (state->mode == MSP_MODE_AM_NICAM) { 364 v4l_dbg(1, msp_debug, client, "switching to AM mono\n"); 365 /* AM mono decoding is handled by tuner, not MSP chip */ 366 /* SCART switching control register */ 367 msp_set_scart(client, SCART_MONO, 0); 368 src = 0x0200; 369 break; 370 } 371 if (state->rxsubchans & V4L2_TUNER_SUB_STEREO) 372 src = 0x0030; 373 break; 374 case V4L2_TUNER_MODE_LANG1: 375 break; 376 case V4L2_TUNER_MODE_LANG2: 377 src |= 0x0010; 378 break; 379 } 380 v4l_dbg(1, msp_debug, client, 381 "set_audmode final source/matrix = 0x%x\n", src); 382 383 msp_set_source(client, src); 384} 385 386static void msp3400c_print_mode(struct i2c_client *client) 387{ 388 struct msp_state *state = to_state(i2c_get_clientdata(client)); 389 390 if (state->main == state->second) 391 v4l_dbg(1, msp_debug, client, 392 "mono sound carrier: %d.%03d MHz\n", 393 state->main / 910000, (state->main / 910) % 1000); 394 else 395 v4l_dbg(1, msp_debug, client, 396 "main sound carrier: %d.%03d MHz\n", 397 state->main / 910000, (state->main / 910) % 1000); 398 if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2) 399 v4l_dbg(1, msp_debug, client, 400 "NICAM/FM carrier : %d.%03d MHz\n", 401 state->second / 910000, (state->second/910) % 1000); 402 if (state->mode == MSP_MODE_AM_NICAM) 403 v4l_dbg(1, msp_debug, client, 404 "NICAM/AM carrier : %d.%03d MHz\n", 405 state->second / 910000, (state->second / 910) % 1000); 406 if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) { 407 v4l_dbg(1, msp_debug, client, 408 "FM-stereo carrier : %d.%03d MHz\n", 409 state->second / 910000, (state->second / 910) % 1000); 410 } 411} 412 413/* ----------------------------------------------------------------------- */ 414 415static int msp3400c_detect_stereo(struct i2c_client *client) 416{ 417 struct msp_state *state = to_state(i2c_get_clientdata(client)); 418 int val; 419 int rxsubchans = state->rxsubchans; 420 int newnicam = state->nicam_on; 421 int update = 0; 422 423 switch (state->mode) { 424 case MSP_MODE_FM_TERRA: 425 val = msp_read_dsp(client, 0x18); 426 if (val > 32767) 427 val -= 65536; 428 v4l_dbg(2, msp_debug, client, 429 "stereo detect register: %d\n", val); 430 if (val > 8192) { 431 rxsubchans = V4L2_TUNER_SUB_STEREO; 432 } else if (val < -4096) { 433 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; 434 } else { 435 rxsubchans = V4L2_TUNER_SUB_MONO; 436 } 437 newnicam = 0; 438 break; 439 case MSP_MODE_FM_NICAM1: 440 case MSP_MODE_FM_NICAM2: 441 case MSP_MODE_AM_NICAM: 442 val = msp_read_dem(client, 0x23); 443 v4l_dbg(2, msp_debug, client, "nicam sync=%d, mode=%d\n", 444 val & 1, (val & 0x1e) >> 1); 445 446 if (val & 1) { 447 /* nicam synced */ 448 switch ((val & 0x1e) >> 1) { 449 case 0: 450 case 8: 451 rxsubchans = V4L2_TUNER_SUB_STEREO; 452 break; 453 case 1: 454 case 9: 455 rxsubchans = V4L2_TUNER_SUB_MONO; 456 break; 457 case 2: 458 case 10: 459 rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; 460 break; 461 default: 462 rxsubchans = V4L2_TUNER_SUB_MONO; 463 break; 464 } 465 newnicam = 1; 466 } else { 467 newnicam = 0; 468 rxsubchans = V4L2_TUNER_SUB_MONO; 469 } 470 break; 471 } 472 if (rxsubchans != state->rxsubchans) { 473 update = 1; 474 v4l_dbg(1, msp_debug, client, 475 "watch: rxsubchans %02x => %02x\n", 476 state->rxsubchans, rxsubchans); 477 state->rxsubchans = rxsubchans; 478 } 479 if (newnicam != state->nicam_on) { 480 update = 1; 481 v4l_dbg(1, msp_debug, client, "watch: nicam %d => %d\n", 482 state->nicam_on, newnicam); 483 state->nicam_on = newnicam; 484 } 485 return update; 486} 487 488/* 489 * A kernel thread for msp3400 control -- we don't want to block the 490 * in the ioctl while doing the sound carrier & stereo detect 491 */ 492/* stereo/multilang monitoring */ 493static void watch_stereo(struct i2c_client *client) 494{ 495 struct msp_state *state = to_state(i2c_get_clientdata(client)); 496 497 if (msp_detect_stereo(client)) 498 msp_set_audmode(client); 499 500 if (msp_once) 501 state->watch_stereo = 0; 502} 503 504int msp3400c_thread(void *data) 505{ 506 struct i2c_client *client = data; 507 struct msp_state *state = to_state(i2c_get_clientdata(client)); 508 struct msp3400c_carrier_detect *cd; 509 int count, max1, max2, val1, val2, val, i; 510 511 v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n"); 512 state->detected_std = V4L2_STD_ALL; 513 set_freezable(); 514 for (;;) { 515 v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n"); 516 msp_sleep(state, -1); 517 v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n"); 518 519restart: 520 v4l_dbg(2, msp_debug, client, "thread: restart scan\n"); 521 state->restart = 0; 522 if (kthread_should_stop()) 523 break; 524 525 if (state->radio || MSP_MODE_EXTERN == state->mode) { 526 /* no carrier scan, just unmute */ 527 v4l_dbg(1, msp_debug, client, 528 "thread: no carrier scan\n"); 529 state->scan_in_progress = 0; 530 msp_update_volume(state); 531 continue; 532 } 533 534 /* mute audio */ 535 state->scan_in_progress = 1; 536 msp_update_volume(state); 537 538 msp3400c_set_mode(client, MSP_MODE_AM_DETECT); 539 val1 = val2 = 0; 540 max1 = max2 = -1; 541 state->watch_stereo = 0; 542 state->nicam_on = 0; 543 544 /* wait for tuner to settle down after a channel change */ 545 if (msp_sleep(state, 200)) 546 goto restart; 547 548 /* carrier detect pass #1 -- main carrier */ 549 cd = msp3400c_carrier_detect_main; 550 count = ARRAY_SIZE(msp3400c_carrier_detect_main); 551 552 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) { 553 /* autodetect doesn't work well with AM ... */ 554 max1 = 3; 555 count = 0; 556 v4l_dbg(1, msp_debug, client, "AM sound override\n"); 557 } 558 559 for (i = 0; i < count; i++) { 560 msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo); 561 if (msp_sleep(state, 100)) 562 goto restart; 563 val = msp_read_dsp(client, 0x1b); 564 if (val > 32767) 565 val -= 65536; 566 if (val1 < val) 567 val1 = val, max1 = i; 568 v4l_dbg(1, msp_debug, client, 569 "carrier1 val: %5d / %s\n", val, cd[i].name); 570 } 571 572 /* carrier detect pass #2 -- second (stereo) carrier */ 573 switch (max1) { 574 case 1: /* 5.5 */ 575 cd = msp3400c_carrier_detect_55; 576 count = ARRAY_SIZE(msp3400c_carrier_detect_55); 577 break; 578 case 3: /* 6.5 */ 579 cd = msp3400c_carrier_detect_65; 580 count = ARRAY_SIZE(msp3400c_carrier_detect_65); 581 break; 582 case 0: /* 4.5 */ 583 case 2: /* 6.0 */ 584 default: 585 cd = NULL; 586 count = 0; 587 break; 588 } 589 590 if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) { 591 /* autodetect doesn't work well with AM ... */ 592 cd = NULL; 593 count = 0; 594 max2 = 0; 595 } 596 for (i = 0; i < count; i++) { 597 msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo); 598 if (msp_sleep(state, 100)) 599 goto restart; 600 val = msp_read_dsp(client, 0x1b); 601 if (val > 32767) 602 val -= 65536; 603 if (val2 < val) 604 val2 = val, max2 = i; 605 v4l_dbg(1, msp_debug, client, 606 "carrier2 val: %5d / %s\n", val, cd[i].name); 607 } 608 609 /* program the msp3400 according to the results */ 610 state->main = msp3400c_carrier_detect_main[max1].cdo; 611 switch (max1) { 612 case 1: /* 5.5 */ 613 state->detected_std = V4L2_STD_BG | V4L2_STD_PAL_H; 614 if (max2 == 0) { 615 /* B/G FM-stereo */ 616 state->second = msp3400c_carrier_detect_55[max2].cdo; 617 msp3400c_set_mode(client, MSP_MODE_FM_TERRA); 618 state->watch_stereo = 1; 619 } else if (max2 == 1 && state->has_nicam) { 620 /* B/G NICAM */ 621 state->second = msp3400c_carrier_detect_55[max2].cdo; 622 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1); 623 state->nicam_on = 1; 624 state->watch_stereo = 1; 625 } else { 626 goto no_second; 627 } 628 break; 629 case 2: /* 6.0 */ 630 /* PAL I NICAM */ 631 state->detected_std = V4L2_STD_PAL_I; 632 state->second = MSP_CARRIER(6.552); 633 msp3400c_set_mode(client, MSP_MODE_FM_NICAM2); 634 state->nicam_on = 1; 635 state->watch_stereo = 1; 636 break; 637 case 3: /* 6.5 */ 638 if (max2 == 1 || max2 == 2) { 639 /* D/K FM-stereo */ 640 state->second = msp3400c_carrier_detect_65[max2].cdo; 641 msp3400c_set_mode(client, MSP_MODE_FM_TERRA); 642 state->watch_stereo = 1; 643 state->detected_std = V4L2_STD_DK; 644 } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) { 645 /* L NICAM or AM-mono */ 646 state->second = msp3400c_carrier_detect_65[max2].cdo; 647 msp3400c_set_mode(client, MSP_MODE_AM_NICAM); 648 state->watch_stereo = 1; 649 state->detected_std = V4L2_STD_L; 650 } else if (max2 == 0 && state->has_nicam) { 651 /* D/K NICAM */ 652 state->second = msp3400c_carrier_detect_65[max2].cdo; 653 msp3400c_set_mode(client, MSP_MODE_FM_NICAM1); 654 state->nicam_on = 1; 655 state->watch_stereo = 1; 656 state->detected_std = V4L2_STD_DK; 657 } else { 658 goto no_second; 659 } 660 break; 661 case 0: /* 4.5 */ 662 state->detected_std = V4L2_STD_MN; 663 default: 664no_second: 665 state->second = msp3400c_carrier_detect_main[max1].cdo; 666 msp3400c_set_mode(client, MSP_MODE_FM_TERRA); 667 break; 668 } 669 msp3400c_set_carrier(client, state->second, state->main); 670 671 /* unmute */ 672 state->scan_in_progress = 0; 673 msp3400c_set_audmode(client); 674 msp_update_volume(state); 675 676 if (msp_debug) 677 msp3400c_print_mode(client); 678 679 /* monitor tv audio mode, the first time don't wait 680 so long to get a quick stereo/bilingual result */ 681 count = 3; 682 while (state->watch_stereo) { 683 if (msp_sleep(state, count ? 1000 : 5000)) 684 goto restart; 685 if (count) 686 count--; 687 watch_stereo(client); 688 } 689 } 690 v4l_dbg(1, msp_debug, client, "thread: exit\n"); 691 return 0; 692} 693 694 695int msp3410d_thread(void *data) 696{ 697 struct i2c_client *client = data; 698 struct msp_state *state = to_state(i2c_get_clientdata(client)); 699 int val, i, std, count; 700 701 v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n"); 702 state->detected_std = V4L2_STD_ALL; 703 set_freezable(); 704 for (;;) { 705 v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n"); 706 msp_sleep(state, -1); 707 v4l_dbg(2, msp_debug, client, "msp3410 thread: wakeup\n"); 708 709restart: 710 v4l_dbg(2, msp_debug, client, "thread: restart scan\n"); 711 state->restart = 0; 712 if (kthread_should_stop()) 713 break; 714 715 if (state->mode == MSP_MODE_EXTERN) { 716 /* no carrier scan needed, just unmute */ 717 v4l_dbg(1, msp_debug, client, 718 "thread: no carrier scan\n"); 719 state->scan_in_progress = 0; 720 msp_update_volume(state); 721 continue; 722 } 723 724 /* mute audio */ 725 state->scan_in_progress = 1; 726 msp_update_volume(state); 727 728 /* start autodetect. Note: autodetect is not supported for 729 NTSC-M and radio, hence we force the standard in those 730 cases. */ 731 if (state->radio) 732 std = 0x40; 733 else 734 std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1; 735 state->watch_stereo = 0; 736 state->nicam_on = 0; 737 738 /* wait for tuner to settle down after a channel change */ 739 if (msp_sleep(state, 200)) 740 goto restart; 741 742 if (msp_debug) 743 v4l_dbg(2, msp_debug, client, 744 "setting standard: %s (0x%04x)\n", 745 msp_standard_std_name(std), std); 746 747 if (std != 1) { 748 /* programmed some specific mode */ 749 val = std; 750 } else { 751 /* triggered autodetect */ 752 msp_write_dem(client, 0x20, std); 753 for (;;) { 754 if (msp_sleep(state, 100)) 755 goto restart; 756 757 /* check results */ 758 val = msp_read_dem(client, 0x7e); 759 if (val < 0x07ff) 760 break; 761 v4l_dbg(2, msp_debug, client, 762 "detection still in progress\n"); 763 } 764 } 765 for (i = 0; msp_stdlist[i].name != NULL; i++) 766 if (msp_stdlist[i].retval == val) 767 break; 768 v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n", 769 msp_standard_std_name(val), val); 770 state->main = msp_stdlist[i].main; 771 state->second = msp_stdlist[i].second; 772 state->std = val; 773 state->rxsubchans = V4L2_TUNER_SUB_MONO; 774 775 if (msp_amsound && !state->radio && 776 (state->v4l2_std & V4L2_STD_SECAM) && (val != 0x0009)) { 777 /* autodetection has failed, let backup */ 778 v4l_dbg(1, msp_debug, client, "autodetection failed," 779 " switching to backup standard: %s (0x%04x)\n", 780 msp_stdlist[8].name ? 781 msp_stdlist[8].name : "unknown", val); 782 state->std = val = 0x0009; 783 msp_write_dem(client, 0x20, val); 784 } else { 785 state->detected_std = msp_standard_std(state->std); 786 } 787 788 /* set stereo */ 789 switch (val) { 790 case 0x0008: /* B/G NICAM */ 791 case 0x000a: /* I NICAM */ 792 case 0x000b: /* D/K NICAM */ 793 if (val == 0x000a) 794 state->mode = MSP_MODE_FM_NICAM2; 795 else 796 state->mode = MSP_MODE_FM_NICAM1; 797 /* just turn on stereo */ 798 state->nicam_on = 1; 799 state->watch_stereo = 1; 800 break; 801 case 0x0009: 802 state->mode = MSP_MODE_AM_NICAM; 803 state->nicam_on = 1; 804 state->watch_stereo = 1; 805 break; 806 case 0x0020: /* BTSC */ 807 /* The pre-'G' models only have BTSC-mono */ 808 state->mode = MSP_MODE_BTSC; 809 break; 810 case 0x0040: /* FM radio */ 811 state->mode = MSP_MODE_FM_RADIO; 812 state->rxsubchans = V4L2_TUNER_SUB_STEREO; 813 /* not needed in theory if we have radio, but 814 short programming enables carrier mute */ 815 msp3400c_set_mode(client, MSP_MODE_FM_RADIO); 816 msp3400c_set_carrier(client, MSP_CARRIER(10.7), 817 MSP_CARRIER(10.7)); 818 break; 819 case 0x0002: 820 case 0x0003: 821 case 0x0004: 822 case 0x0005: 823 state->mode = MSP_MODE_FM_TERRA; 824 state->watch_stereo = 1; 825 break; 826 } 827 828 /* set various prescales */ 829 msp_write_dsp(client, 0x0d, 0x1900); /* scart */ 830 msp_write_dsp(client, 0x0e, 0x3000); /* FM */ 831 if (state->has_nicam) 832 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */ 833 834 if (state->has_i2s_conf) 835 msp_write_dem(client, 0x40, state->i2s_mode); 836 837 /* unmute */ 838 msp3400c_set_audmode(client); 839 state->scan_in_progress = 0; 840 msp_update_volume(state); 841 842 /* monitor tv audio mode, the first time don't wait 843 so long to get a quick stereo/bilingual result */ 844 count = 3; 845 while (state->watch_stereo) { 846 if (msp_sleep(state, count ? 1000 : 5000)) 847 goto restart; 848 if (count) 849 count--; 850 watch_stereo(client); 851 } 852 } 853 v4l_dbg(1, msp_debug, client, "thread: exit\n"); 854 return 0; 855} 856 857/* ----------------------------------------------------------------------- */ 858 859/* msp34xxG + (autoselect no-thread) 860 * this one uses both automatic standard detection and automatic sound 861 * select which are available in the newer G versions 862 * struct msp: only norm, acb and source are really used in this mode 863 */ 864 865static int msp34xxg_modus(struct i2c_client *client) 866{ 867 struct msp_state *state = to_state(i2c_get_clientdata(client)); 868 869 if (state->radio) { 870 v4l_dbg(1, msp_debug, client, "selected radio modus\n"); 871 return 0x0001; 872 } 873 if (state->v4l2_std == V4L2_STD_NTSC_M_JP) { 874 v4l_dbg(1, msp_debug, client, "selected M (EIA-J) modus\n"); 875 return 0x4001; 876 } 877 if (state->v4l2_std == V4L2_STD_NTSC_M_KR) { 878 v4l_dbg(1, msp_debug, client, "selected M (A2) modus\n"); 879 return 0x0001; 880 } 881 if (state->v4l2_std == V4L2_STD_SECAM_L) { 882 v4l_dbg(1, msp_debug, client, "selected SECAM-L modus\n"); 883 return 0x6001; 884 } 885 if (state->v4l2_std & V4L2_STD_MN) { 886 v4l_dbg(1, msp_debug, client, "selected M (BTSC) modus\n"); 887 return 0x2001; 888 } 889 return 0x7001; 890} 891 892static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in) 893 { 894 struct msp_state *state = to_state(i2c_get_clientdata(client)); 895 int source, matrix; 896 897 switch (state->audmode) { 898 case V4L2_TUNER_MODE_MONO: 899 source = 0; /* mono only */ 900 matrix = 0x30; 901 break; 902 case V4L2_TUNER_MODE_LANG2: 903 source = 4; /* stereo or B */ 904 matrix = 0x10; 905 break; 906 case V4L2_TUNER_MODE_LANG1_LANG2: 907 source = 1; /* stereo or A|B */ 908 matrix = 0x20; 909 break; 910 case V4L2_TUNER_MODE_LANG1: 911 source = 3; /* stereo or A */ 912 matrix = 0x00; 913 break; 914 case V4L2_TUNER_MODE_STEREO: 915 default: 916 source = 3; /* stereo or A */ 917 matrix = 0x20; 918 break; 919 } 920 921 if (in == MSP_DSP_IN_TUNER) 922 source = (source << 8) | 0x20; 923 /* the msp34x2g puts the MAIN_AVC, MAIN and AUX sources in 12, 13, 14 924 instead of 11, 12, 13. So we add one for that msp version. */ 925 else if (in >= MSP_DSP_IN_MAIN_AVC && state->has_dolby_pro_logic) 926 source = ((in + 1) << 8) | matrix; 927 else 928 source = (in << 8) | matrix; 929 930 v4l_dbg(1, msp_debug, client, 931 "set source to %d (0x%x) for output %02x\n", in, source, reg); 932 msp_write_dsp(client, reg, source); 933} 934 935static void msp34xxg_set_sources(struct i2c_client *client) 936{ 937 struct msp_state *state = to_state(i2c_get_clientdata(client)); 938 u32 in = state->route_in; 939 940 msp34xxg_set_source(client, 0x0008, (in >> 4) & 0xf); 941 /* quasi-peak detector is set to same input as the loudspeaker (MAIN) */ 942 msp34xxg_set_source(client, 0x000c, (in >> 4) & 0xf); 943 msp34xxg_set_source(client, 0x0009, (in >> 8) & 0xf); 944 msp34xxg_set_source(client, 0x000a, (in >> 12) & 0xf); 945 if (state->has_scart2_out) 946 msp34xxg_set_source(client, 0x0041, (in >> 16) & 0xf); 947 msp34xxg_set_source(client, 0x000b, (in >> 20) & 0xf); 948} 949 950/* (re-)initialize the msp34xxg */ 951static void msp34xxg_reset(struct i2c_client *client) 952{ 953 struct msp_state *state = to_state(i2c_get_clientdata(client)); 954 int tuner = (state->route_in >> 3) & 1; 955 int modus; 956 957 /* initialize std to 1 (autodetect) to signal that no standard is 958 selected yet. */ 959 state->std = 1; 960 961 msp_reset(client); 962 963 if (state->has_i2s_conf) 964 msp_write_dem(client, 0x40, state->i2s_mode); 965 966 /* step-by-step initialisation, as described in the manual */ 967 modus = msp34xxg_modus(client); 968 modus |= tuner ? 0x100 : 0; 969 msp_write_dem(client, 0x30, modus); 970 971 /* write the dsps that may have an influence on 972 standard/audio autodetection right now */ 973 msp34xxg_set_sources(client); 974 975 msp_write_dsp(client, 0x0d, 0x1900); /* scart */ 976 msp_write_dsp(client, 0x0e, 0x3000); /* FM */ 977 if (state->has_nicam) 978 msp_write_dsp(client, 0x10, 0x5a00); /* nicam */ 979 980 /* set identification threshold. Personally, I 981 * I set it to a higher value than the default 982 * of 0x190 to ignore noisy stereo signals. 983 * this needs tuning. (recommended range 0x00a0-0x03c0) 984 * 0x7f0 = forced mono mode 985 * 986 * a2 threshold for stereo/bilingual. 987 * Note: this register is part of the Manual/Compatibility mode. 988 * It is supported by all 'G'-family chips. 989 */ 990 msp_write_dem(client, 0x22, msp_stereo_thresh); 991} 992 993int msp34xxg_thread(void *data) 994{ 995 struct i2c_client *client = data; 996 struct msp_state *state = to_state(i2c_get_clientdata(client)); 997 int val, i; 998 999 v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n"); 1000 state->detected_std = V4L2_STD_ALL; 1001 set_freezable(); 1002 for (;;) { 1003 v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n"); 1004 msp_sleep(state, -1); 1005 v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n"); 1006 1007restart: 1008 v4l_dbg(1, msp_debug, client, "thread: restart scan\n"); 1009 state->restart = 0; 1010 if (kthread_should_stop()) 1011 break; 1012 1013 if (state->mode == MSP_MODE_EXTERN) { 1014 /* no carrier scan needed, just unmute */ 1015 v4l_dbg(1, msp_debug, client, 1016 "thread: no carrier scan\n"); 1017 state->scan_in_progress = 0; 1018 msp_update_volume(state); 1019 continue; 1020 } 1021 1022 /* setup the chip*/ 1023 msp34xxg_reset(client); 1024 state->std = state->radio ? 0x40 : 1025 (state->force_btsc && msp_standard == 1) ? 32 : msp_standard; 1026 msp_write_dem(client, 0x20, state->std); 1027 /* start autodetect */ 1028 if (state->std != 1) 1029 goto unmute; 1030 1031 /* watch autodetect */ 1032 v4l_dbg(1, msp_debug, client, 1033 "started autodetect, waiting for result\n"); 1034 for (i = 0; i < 10; i++) { 1035 if (msp_sleep(state, 100)) 1036 goto restart; 1037 1038 /* check results */ 1039 val = msp_read_dem(client, 0x7e); 1040 if (val < 0x07ff) { 1041 state->std = val; 1042 break; 1043 } 1044 v4l_dbg(2, msp_debug, client, 1045 "detection still in progress\n"); 1046 } 1047 if (state->std == 1) { 1048 v4l_dbg(1, msp_debug, client, 1049 "detection still in progress after 10 tries. giving up.\n"); 1050 continue; 1051 } 1052 1053unmute: 1054 v4l_dbg(1, msp_debug, client, 1055 "detected standard: %s (0x%04x)\n", 1056 msp_standard_std_name(state->std), state->std); 1057 state->detected_std = msp_standard_std(state->std); 1058 1059 if (state->std == 9) { 1060 /* AM NICAM mode */ 1061 msp_write_dsp(client, 0x0e, 0x7c00); 1062 } 1063 1064 /* unmute: dispatch sound to scart output, set scart volume */ 1065 msp_update_volume(state); 1066 1067 /* restore ACB */ 1068 if (msp_write_dsp(client, 0x13, state->acb)) 1069 return -1; 1070 1071 /* the periodic stereo/SAP check is only relevant for 1072 the 0x20 standard (BTSC) */ 1073 if (state->std != 0x20) 1074 continue; 1075 1076 state->watch_stereo = 1; 1077 1078 /* monitor tv audio mode, the first time don't wait 1079 in order to get a quick stereo/SAP update */ 1080 watch_stereo(client); 1081 while (state->watch_stereo) { 1082 watch_stereo(client); 1083 if (msp_sleep(state, 5000)) 1084 goto restart; 1085 } 1086 } 1087 v4l_dbg(1, msp_debug, client, "thread: exit\n"); 1088 return 0; 1089} 1090 1091static int msp34xxg_detect_stereo(struct i2c_client *client) 1092{ 1093 struct msp_state *state = to_state(i2c_get_clientdata(client)); 1094 int status = msp_read_dem(client, 0x0200); 1095 int is_bilingual = status & 0x100; 1096 int is_stereo = status & 0x40; 1097 int oldrx = state->rxsubchans; 1098 1099 if (state->mode == MSP_MODE_EXTERN) 1100 return 0; 1101 1102 state->rxsubchans = 0; 1103 if (is_stereo) 1104 state->rxsubchans = V4L2_TUNER_SUB_STEREO; 1105 else 1106 state->rxsubchans = V4L2_TUNER_SUB_MONO; 1107 if (is_bilingual) { 1108 if (state->std == 0x20) 1109 state->rxsubchans |= V4L2_TUNER_SUB_SAP; 1110 else 1111 state->rxsubchans = 1112 V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; 1113 } 1114 v4l_dbg(1, msp_debug, client, 1115 "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n", 1116 status, is_stereo, is_bilingual, state->rxsubchans); 1117 return (oldrx != state->rxsubchans); 1118} 1119 1120static void msp34xxg_set_audmode(struct i2c_client *client) 1121{ 1122 struct msp_state *state = to_state(i2c_get_clientdata(client)); 1123 1124 if (state->std == 0x20) { 1125 if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) && 1126 (state->audmode == V4L2_TUNER_MODE_LANG1_LANG2 || 1127 state->audmode == V4L2_TUNER_MODE_LANG2)) { 1128 msp_write_dem(client, 0x20, 0x21); 1129 } else { 1130 msp_write_dem(client, 0x20, 0x20); 1131 } 1132 } 1133 1134 msp34xxg_set_sources(client); 1135} 1136 1137void msp_set_audmode(struct i2c_client *client) 1138{ 1139 struct msp_state *state = to_state(i2c_get_clientdata(client)); 1140 1141 switch (state->opmode) { 1142 case OPMODE_MANUAL: 1143 case OPMODE_AUTODETECT: 1144 msp3400c_set_audmode(client); 1145 break; 1146 case OPMODE_AUTOSELECT: 1147 msp34xxg_set_audmode(client); 1148 break; 1149 } 1150} 1151 1152int msp_detect_stereo(struct i2c_client *client) 1153{ 1154 struct msp_state *state = to_state(i2c_get_clientdata(client)); 1155 1156 switch (state->opmode) { 1157 case OPMODE_MANUAL: 1158 case OPMODE_AUTODETECT: 1159 return msp3400c_detect_stereo(client); 1160 case OPMODE_AUTOSELECT: 1161 return msp34xxg_detect_stereo(client); 1162 } 1163 return 0; 1164} 1165 1166