1 /*- 2 * 1. Redistributions of source code must retain the 3 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Amancio Hasty and 17 * Roger Hardiman 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 24 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD: src/sys/dev/bktr/bktr_tuner.c,v 1.20 2005/11/13 13:26:37 netchild Exp $ 34 * $DragonFly: src/sys/dev/video/bktr/bktr_tuner.c,v 1.10 2007/10/03 19:27:08 swildner Exp $ 35 */ 36 37 38 /* 39 * This is part of the Driver for Video Capture Cards (Frame grabbers) 40 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879 41 * chipset. 42 * Copyright Roger Hardiman and Amancio Hasty. 43 * 44 * bktr_tuner : This deals with controlling the tuner fitted to TV cards. 45 */ 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/kernel.h> 50 #include <sys/bus.h> 51 #include <sys/selinfo.h> 52 53 #include <bus/pci/pcivar.h> 54 55 #include <dev/video/meteor/ioctl_meteor.h> 56 #include <dev/video/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 57 #include <dev/video/bktr/bktr_reg.h> 58 #include <dev/video/bktr/bktr_tuner.h> 59 #include <dev/video/bktr/bktr_card.h> 60 #include <dev/video/bktr/bktr_core.h> 61 62 63 64 #if defined( TUNER_AFC ) 65 #define AFC_DELAY 10000 /* 10 millisend delay */ 66 #define AFC_BITS 0x07 67 #define AFC_FREQ_MINUS_125 0x00 68 #define AFC_FREQ_MINUS_62 0x01 69 #define AFC_FREQ_CENTERED 0x02 70 #define AFC_FREQ_PLUS_62 0x03 71 #define AFC_FREQ_PLUS_125 0x04 72 #define AFC_MAX_STEP (5 * FREQFACTOR) /* no more than 5 MHz */ 73 #endif /* TUNER_AFC */ 74 75 76 #define TTYPE_XXX 0 77 #define TTYPE_NTSC 1 78 #define TTYPE_NTSC_J 2 79 #define TTYPE_PAL 3 80 #define TTYPE_PAL_M 4 81 #define TTYPE_PAL_N 5 82 #define TTYPE_SECAM 6 83 84 #define TSA552x_CB_MSB (0x80) 85 #define TSA552x_CB_CP (1<<6) /* set this for fast tuning */ 86 #define TSA552x_CB_T2 (1<<5) /* test mode - Normally set to 0 */ 87 #define TSA552x_CB_T1 (1<<4) /* test mode - Normally set to 0 */ 88 #define TSA552x_CB_T0 (1<<3) /* test mode - Normally set to 1 */ 89 #define TSA552x_CB_RSA (1<<2) /* 0 for 31.25 khz, 1 for 62.5 kHz */ 90 #define TSA552x_CB_RSB (1<<1) /* 0 for FM 50kHz steps, 1 = Use RSA*/ 91 #define TSA552x_CB_OS (1<<0) /* Set to 0 for normal operation */ 92 93 #define TSA552x_RADIO (TSA552x_CB_MSB | \ 94 TSA552x_CB_T0) 95 96 /* raise the charge pump voltage for fast tuning */ 97 #define TSA552x_FCONTROL (TSA552x_CB_MSB | \ 98 TSA552x_CB_CP | \ 99 TSA552x_CB_T0 | \ 100 TSA552x_CB_RSA | \ 101 TSA552x_CB_RSB) 102 103 /* lower the charge pump voltage for better residual oscillator FM */ 104 #define TSA552x_SCONTROL (TSA552x_CB_MSB | \ 105 TSA552x_CB_T0 | \ 106 TSA552x_CB_RSA | \ 107 TSA552x_CB_RSB) 108 109 /* The control value for the ALPS TSCH5 Tuner */ 110 #define TSCH5_FCONTROL 0x82 111 #define TSCH5_RADIO 0x86 112 113 /* The control value for the ALPS TSBH1 Tuner */ 114 #define TSBH1_FCONTROL 0xce 115 116 117 static void mt2032_set_tv_freq(bktr_ptr_t bktr, unsigned int freq); 118 119 120 static const struct TUNER tuners[] = { 121 /* XXX FIXME: fill in the band-switch crosspoints */ 122 /* NO_TUNER */ 123 { "<no>", /* the 'name' */ 124 TTYPE_XXX, /* input type */ 125 { 0x00, /* control byte for Tuner PLL */ 126 0x00, 127 0x00, 128 0x00 }, 129 { 0x00, 0x00 }, /* band-switch crosspoints */ 130 { 0x00, 0x00, 0x00,0x00} }, /* the band-switch values */ 131 132 /* TEMIC_NTSC */ 133 { "Temic NTSC", /* the 'name' */ 134 TTYPE_NTSC, /* input type */ 135 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 136 TSA552x_SCONTROL, 137 TSA552x_SCONTROL, 138 0x00 }, 139 { 0x00, 0x00}, /* band-switch crosspoints */ 140 { 0x02, 0x04, 0x01, 0x00 } }, /* the band-switch values */ 141 142 /* TEMIC_PAL */ 143 { "Temic PAL", /* the 'name' */ 144 TTYPE_PAL, /* input type */ 145 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 146 TSA552x_SCONTROL, 147 TSA552x_SCONTROL, 148 0x00 }, 149 { 0x00, 0x00 }, /* band-switch crosspoints */ 150 { 0x02, 0x04, 0x01, 0x00 } }, /* the band-switch values */ 151 152 /* TEMIC_SECAM */ 153 { "Temic SECAM", /* the 'name' */ 154 TTYPE_SECAM, /* input type */ 155 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 156 TSA552x_SCONTROL, 157 TSA552x_SCONTROL, 158 0x00 }, 159 { 0x00, 0x00 }, /* band-switch crosspoints */ 160 { 0x02, 0x04, 0x01,0x00 } }, /* the band-switch values */ 161 162 /* PHILIPS_NTSC */ 163 { "Philips NTSC", /* the 'name' */ 164 TTYPE_NTSC, /* input type */ 165 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 166 TSA552x_SCONTROL, 167 TSA552x_SCONTROL, 168 0x00 }, 169 { 0x00, 0x00 }, /* band-switch crosspoints */ 170 { 0xa0, 0x90, 0x30, 0x00 } }, /* the band-switch values */ 171 172 /* PHILIPS_PAL */ 173 { "Philips PAL", /* the 'name' */ 174 TTYPE_PAL, /* input type */ 175 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 176 TSA552x_SCONTROL, 177 TSA552x_SCONTROL, 178 0x00 }, 179 { 0x00, 0x00 }, /* band-switch crosspoints */ 180 { 0xa0, 0x90, 0x30, 0x00 } }, /* the band-switch values */ 181 182 /* PHILIPS_SECAM */ 183 { "Philips SECAM", /* the 'name' */ 184 TTYPE_SECAM, /* input type */ 185 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 186 TSA552x_SCONTROL, 187 TSA552x_SCONTROL, 188 0x00 }, 189 { 0x00, 0x00 }, /* band-switch crosspoints */ 190 { 0xa7, 0x97, 0x37, 0x00 } }, /* the band-switch values */ 191 192 /* TEMIC_PAL I */ 193 { "Temic PAL I", /* the 'name' */ 194 TTYPE_PAL, /* input type */ 195 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 196 TSA552x_SCONTROL, 197 TSA552x_SCONTROL, 198 0x00 }, 199 { 0x00, 0x00 }, /* band-switch crosspoints */ 200 { 0x02, 0x04, 0x01,0x00 } }, /* the band-switch values */ 201 202 /* PHILIPS_PALI */ 203 { "Philips PAL I", /* the 'name' */ 204 TTYPE_PAL, /* input type */ 205 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 206 TSA552x_SCONTROL, 207 TSA552x_SCONTROL, 208 0x00 }, 209 { 0x00, 0x00 }, /* band-switch crosspoints */ 210 { 0xa0, 0x90, 0x30,0x00 } }, /* the band-switch values */ 211 212 /* PHILIPS_FR1236_NTSC */ 213 { "Philips FR1236 NTSC FM", /* the 'name' */ 214 TTYPE_NTSC, /* input type */ 215 { TSA552x_FCONTROL, /* control byte for Tuner PLL */ 216 TSA552x_FCONTROL, 217 TSA552x_FCONTROL, 218 TSA552x_RADIO }, 219 { 0x00, 0x00 }, /* band-switch crosspoints */ 220 { 0xa0, 0x90, 0x30,0xa4 } }, /* the band-switch values */ 221 222 /* PHILIPS_FR1216_PAL */ 223 { "Philips FR1216 PAL FM" , /* the 'name' */ 224 TTYPE_PAL, /* input type */ 225 { TSA552x_FCONTROL, /* control byte for Tuner PLL */ 226 TSA552x_FCONTROL, 227 TSA552x_FCONTROL, 228 TSA552x_RADIO }, 229 { 0x00, 0x00 }, /* band-switch crosspoints */ 230 { 0xa0, 0x90, 0x30, 0xa4 } }, /* the band-switch values */ 231 232 /* PHILIPS_FR1236_SECAM */ 233 { "Philips FR1236 SECAM FM", /* the 'name' */ 234 TTYPE_SECAM, /* input type */ 235 { TSA552x_FCONTROL, /* control byte for Tuner PLL */ 236 TSA552x_FCONTROL, 237 TSA552x_FCONTROL, 238 TSA552x_RADIO }, 239 { 0x00, 0x00 }, /* band-switch crosspoints */ 240 { 0xa7, 0x97, 0x37, 0xa4 } }, /* the band-switch values */ 241 242 /* ALPS TSCH5 NTSC */ 243 { "ALPS TSCH5 NTSC FM", /* the 'name' */ 244 TTYPE_NTSC, /* input type */ 245 { TSCH5_FCONTROL, /* control byte for Tuner PLL */ 246 TSCH5_FCONTROL, 247 TSCH5_FCONTROL, 248 TSCH5_RADIO }, 249 { 0x00, 0x00 }, /* band-switch crosspoints */ 250 { 0x14, 0x12, 0x11, 0x04 } }, /* the band-switch values */ 251 252 /* ALPS TSBH1 NTSC */ 253 { "ALPS TSBH1 NTSC", /* the 'name' */ 254 TTYPE_NTSC, /* input type */ 255 { TSBH1_FCONTROL, /* control byte for Tuner PLL */ 256 TSBH1_FCONTROL, 257 TSBH1_FCONTROL, 258 0x00 }, 259 { 0x00, 0x00 }, /* band-switch crosspoints */ 260 { 0x01, 0x02, 0x08, 0x00 } }, /* the band-switch values */ 261 262 /* MT2032 Microtune */ 263 { "MT2032", /* the 'name' */ 264 TTYPE_PAL, /* input type */ 265 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 266 TSA552x_SCONTROL, 267 TSA552x_SCONTROL, 268 0x00 }, 269 { 0x00, 0x00 }, /* band-switch crosspoints */ 270 { 0xa0, 0x90, 0x30, 0x00 } }, /* the band-switch values */ 271 272 /* LG TPI8PSB12P PAL */ 273 { "LG TPI8PSB12P PAL", /* the 'name' */ 274 TTYPE_PAL, /* input type */ 275 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 276 TSA552x_SCONTROL, 277 TSA552x_SCONTROL, 278 0x00 }, 279 { 0x00, 0x00 }, /* band-switch crosspoints */ 280 { 0xa0, 0x90, 0x30, 0x8e } }, /* the band-switch values */ 281 }; 282 283 284 /* scaling factor for frequencies expressed as ints */ 285 #define FREQFACTOR 16 286 287 /* 288 * Format: 289 * entry 0: MAX legal channel 290 * entry 1: IF frequency 291 * expressed as fi{mHz} * 16, 292 * eg 45.75mHz == 45.75 * 16 = 732 293 * entry 2: [place holder/future] 294 * entry 3: base of channel record 0 295 * entry 3 + (x*3): base of channel record 'x' 296 * entry LAST: NULL channel entry marking end of records 297 * 298 * Record: 299 * int 0: base channel 300 * int 1: frequency of base channel, 301 * expressed as fb{mHz} * 16, 302 * int 2: offset frequency between channels, 303 * expressed as fo{mHz} * 16, 304 */ 305 306 /* 307 * North American Broadcast Channels: 308 * 309 * 2: 55.25 mHz - 4: 67.25 mHz 310 * 5: 77.25 mHz - 6: 83.25 mHz 311 * 7: 175.25 mHz - 13: 211.25 mHz 312 * 14: 471.25 mHz - 83: 885.25 mHz 313 * 314 * IF freq: 45.75 mHz 315 */ 316 #define OFFSET 6.00 317 static int nabcst[] = { 318 83, (int)( 45.75 * FREQFACTOR), 0, 319 14, (int)(471.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 320 7, (int)(175.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 321 5, (int)( 77.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 322 2, (int)( 55.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 323 0 324 }; 325 #undef OFFSET 326 327 /* 328 * North American Cable Channels, IRC: 329 * 330 * 2: 55.25 mHz - 4: 67.25 mHz 331 * 5: 77.25 mHz - 6: 83.25 mHz 332 * 7: 175.25 mHz - 13: 211.25 mHz 333 * 14: 121.25 mHz - 22: 169.25 mHz 334 * 23: 217.25 mHz - 94: 643.25 mHz 335 * 95: 91.25 mHz - 99: 115.25 mHz 336 * 337 * IF freq: 45.75 mHz 338 */ 339 #define OFFSET 6.00 340 static int irccable[] = { 341 116, (int)( 45.75 * FREQFACTOR), 0, 342 100, (int)(649.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 343 95, (int)( 91.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 344 23, (int)(217.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 345 14, (int)(121.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 346 7, (int)(175.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 347 5, (int)( 77.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 348 2, (int)( 55.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 349 0 350 }; 351 #undef OFFSET 352 353 /* 354 * North American Cable Channels, HRC: 355 * 356 * 2: 54 mHz - 4: 66 mHz 357 * 5: 78 mHz - 6: 84 mHz 358 * 7: 174 mHz - 13: 210 mHz 359 * 14: 120 mHz - 22: 168 mHz 360 * 23: 216 mHz - 94: 642 mHz 361 * 95: 90 mHz - 99: 114 mHz 362 * 363 * IF freq: 45.75 mHz 364 */ 365 #define OFFSET 6.00 366 static int hrccable[] = { 367 116, (int)( 45.75 * FREQFACTOR), 0, 368 100, (int)(648.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 369 95, (int)( 90.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 370 23, (int)(216.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 371 14, (int)(120.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 372 7, (int)(174.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 373 5, (int)( 78.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 374 2, (int)( 54.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 375 0 376 }; 377 #undef OFFSET 378 379 /* 380 * Western European broadcast channels: 381 * 382 * (there are others that appear to vary between countries - rmt) 383 * 384 * here's the table Philips provides: 385 * caution, some of the offsets don't compute... 386 * 387 * 1 4525 700 N21 388 * 389 * 2 4825 700 E2 390 * 3 5525 700 E3 391 * 4 6225 700 E4 392 * 393 * 5 17525 700 E5 394 * 6 18225 700 E6 395 * 7 18925 700 E7 396 * 8 19625 700 E8 397 * 9 20325 700 E9 398 * 10 21025 700 E10 399 * 11 21725 700 E11 400 * 12 22425 700 E12 401 * 402 * 13 5375 700 ITA 403 * 14 6225 700 ITB 404 * 405 * 15 8225 700 ITC 406 * 407 * 16 17525 700 ITD 408 * 17 18325 700 ITE 409 * 410 * 18 19225 700 ITF 411 * 19 20125 700 ITG 412 * 20 21025 700 ITH 413 * 414 * 21 47125 800 E21 415 * 22 47925 800 E22 416 * 23 48725 800 E23 417 * 24 49525 800 E24 418 * 25 50325 800 E25 419 * 26 51125 800 E26 420 * 27 51925 800 E27 421 * 28 52725 800 E28 422 * 29 53525 800 E29 423 * 30 54325 800 E30 424 * 31 55125 800 E31 425 * 32 55925 800 E32 426 * 33 56725 800 E33 427 * 34 57525 800 E34 428 * 35 58325 800 E35 429 * 36 59125 800 E36 430 * 37 59925 800 E37 431 * 38 60725 800 E38 432 * 39 61525 800 E39 433 * 40 62325 800 E40 434 * 41 63125 800 E41 435 * 42 63925 800 E42 436 * 43 64725 800 E43 437 * 44 65525 800 E44 438 * 45 66325 800 E45 439 * 46 67125 800 E46 440 * 47 67925 800 E47 441 * 48 68725 800 E48 442 * 49 69525 800 E49 443 * 50 70325 800 E50 444 * 51 71125 800 E51 445 * 52 71925 800 E52 446 * 53 72725 800 E53 447 * 54 73525 800 E54 448 * 55 74325 800 E55 449 * 56 75125 800 E56 450 * 57 75925 800 E57 451 * 58 76725 800 E58 452 * 59 77525 800 E59 453 * 60 78325 800 E60 454 * 61 79125 800 E61 455 * 62 79925 800 E62 456 * 63 80725 800 E63 457 * 64 81525 800 E64 458 * 65 82325 800 E65 459 * 66 83125 800 E66 460 * 67 83925 800 E67 461 * 68 84725 800 E68 462 * 69 85525 800 E69 463 * 464 * 70 4575 800 IA 465 * 71 5375 800 IB 466 * 72 6175 800 IC 467 * 468 * 74 6925 700 S01 469 * 75 7625 700 S02 470 * 76 8325 700 S03 471 * 472 * 80 10525 700 S1 473 * 81 11225 700 S2 474 * 82 11925 700 S3 475 * 83 12625 700 S4 476 * 84 13325 700 S5 477 * 85 14025 700 S6 478 * 86 14725 700 S7 479 * 87 15425 700 S8 480 * 88 16125 700 S9 481 * 89 16825 700 S10 482 * 90 23125 700 S11 483 * 91 23825 700 S12 484 * 92 24525 700 S13 485 * 93 25225 700 S14 486 * 94 25925 700 S15 487 * 95 26625 700 S16 488 * 96 27325 700 S17 489 * 97 28025 700 S18 490 * 98 28725 700 S19 491 * 99 29425 700 S20 492 * 493 * 494 * Channels S21 - S41 are taken from 495 * http://gemma.apple.com:80/dev/technotes/tn/tn1012.html 496 * 497 * 100 30325 800 S21 498 * 101 31125 800 S22 499 * 102 31925 800 S23 500 * 103 32725 800 S24 501 * 104 33525 800 S25 502 * 105 34325 800 S26 503 * 106 35125 800 S27 504 * 107 35925 800 S28 505 * 108 36725 800 S29 506 * 109 37525 800 S30 507 * 110 38325 800 S31 508 * 111 39125 800 S32 509 * 112 39925 800 S33 510 * 113 40725 800 S34 511 * 114 41525 800 S35 512 * 115 42325 800 S36 513 * 116 43125 800 S37 514 * 117 43925 800 S38 515 * 118 44725 800 S39 516 * 119 45525 800 S40 517 * 120 46325 800 S41 518 * 519 * 121 3890 000 IFFREQ 520 * 521 */ 522 static int weurope[] = { 523 121, (int)( 38.90 * FREQFACTOR), 0, 524 100, (int)(303.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 525 90, (int)(231.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR), 526 80, (int)(105.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR), 527 74, (int)( 69.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR), 528 21, (int)(471.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 529 17, (int)(183.25 * FREQFACTOR), (int)(9.00 * FREQFACTOR), 530 16, (int)(175.25 * FREQFACTOR), (int)(9.00 * FREQFACTOR), 531 15, (int)(82.25 * FREQFACTOR), (int)(8.50 * FREQFACTOR), 532 13, (int)(53.75 * FREQFACTOR), (int)(8.50 * FREQFACTOR), 533 5, (int)(175.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR), 534 2, (int)(48.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR), 535 0 536 }; 537 538 /* 539 * Japanese Broadcast Channels: 540 * 541 * 1: 91.25MHz - 3: 103.25MHz 542 * 4: 171.25MHz - 7: 189.25MHz 543 * 8: 193.25MHz - 12: 217.25MHz (VHF) 544 * 13: 471.25MHz - 62: 765.25MHz (UHF) 545 * 546 * IF freq: 45.75 mHz 547 * OR 548 * IF freq: 58.75 mHz 549 */ 550 #define OFFSET 6.00 551 #define IF_FREQ 45.75 552 static int jpnbcst[] = { 553 62, (int)(IF_FREQ * FREQFACTOR), 0, 554 13, (int)(471.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 555 8, (int)(193.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 556 4, (int)(171.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 557 1, (int)( 91.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 558 0 559 }; 560 #undef IF_FREQ 561 #undef OFFSET 562 563 /* 564 * Japanese Cable Channels: 565 * 566 * 1: 91.25MHz - 3: 103.25MHz 567 * 4: 171.25MHz - 7: 189.25MHz 568 * 8: 193.25MHz - 12: 217.25MHz 569 * 13: 109.25MHz - 21: 157.25MHz 570 * 22: 165.25MHz 571 * 23: 223.25MHz - 63: 463.25MHz 572 * 573 * IF freq: 45.75 mHz 574 */ 575 #define OFFSET 6.00 576 #define IF_FREQ 45.75 577 static int jpncable[] = { 578 63, (int)(IF_FREQ * FREQFACTOR), 0, 579 23, (int)(223.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 580 22, (int)(165.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 581 13, (int)(109.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 582 8, (int)(193.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 583 4, (int)(171.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 584 1, (int)( 91.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 585 0 586 }; 587 #undef IF_FREQ 588 #undef OFFSET 589 590 /* 591 * xUSSR Broadcast Channels: 592 * 593 * 1: 49.75MHz - 2: 59.25MHz 594 * 3: 77.25MHz - 5: 93.25MHz 595 * 6: 175.25MHz - 12: 223.25MHz 596 * 13-20 - not exist 597 * 21: 471.25MHz - 34: 575.25MHz 598 * 35: 583.25MHz - 69: 855.25MHz 599 * 600 * Cable channels 601 * 602 * 70: 111.25MHz - 77: 167.25MHz 603 * 78: 231.25MHz -107: 463.25MHz 604 * 605 * IF freq: 38.90 MHz 606 */ 607 #define IF_FREQ 38.90 608 static int xussr[] = { 609 107, (int)(IF_FREQ * FREQFACTOR), 0, 610 78, (int)(231.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 611 70, (int)(111.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 612 35, (int)(583.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 613 21, (int)(471.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 614 6, (int)(175.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 615 3, (int)( 77.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 616 1, (int)( 49.75 * FREQFACTOR), (int)(9.50 * FREQFACTOR), 617 0 618 }; 619 #undef IF_FREQ 620 621 /* 622 * Australian broadcast channels 623 */ 624 #define OFFSET 7.00 625 #define IF_FREQ 38.90 626 static int australia[] = { 627 83, (int)(IF_FREQ * FREQFACTOR), 0, 628 28, (int)(527.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 629 10, (int)(209.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 630 6, (int)(175.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 631 4, (int)( 95.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 632 3, (int)( 86.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 633 1, (int)( 57.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 634 0 635 }; 636 #undef OFFSET 637 #undef IF_FREQ 638 639 /* 640 * France broadcast channels 641 */ 642 #define OFFSET 8.00 643 #define IF_FREQ 38.90 644 static int france[] = { 645 69, (int)(IF_FREQ * FREQFACTOR), 0, 646 21, (int)(471.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), /* 21 -> 69 */ 647 5, (int)(176.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), /* 5 -> 10 */ 648 4, (int)( 63.75 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), /* 4 */ 649 3, (int)( 60.50 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), /* 3 */ 650 1, (int)( 47.75 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), /* 1 2 */ 651 0 652 }; 653 #undef OFFSET 654 #undef IF_FREQ 655 656 static struct { 657 int *ptr; 658 char name[BT848_MAX_CHNLSET_NAME_LEN]; 659 } freqTable[] = { 660 {NULL, ""}, 661 {nabcst, "nabcst"}, 662 {irccable, "cableirc"}, 663 {hrccable, "cablehrc"}, 664 {weurope, "weurope"}, 665 {jpnbcst, "jpnbcst"}, 666 {jpncable, "jpncable"}, 667 {xussr, "xussr"}, 668 {australia, "australia"}, 669 {france, "france"}, 670 671 }; 672 673 #define TBL_CHNL freqTable[ bktr->tuner.chnlset ].ptr[ x ] 674 #define TBL_BASE_FREQ freqTable[ bktr->tuner.chnlset ].ptr[ x + 1 ] 675 #define TBL_OFFSET freqTable[ bktr->tuner.chnlset ].ptr[ x + 2 ] 676 static int 677 frequency_lookup( bktr_ptr_t bktr, int channel ) 678 { 679 int x; 680 681 /* check for "> MAX channel" */ 682 x = 0; 683 if ( channel > TBL_CHNL ) 684 return( -1 ); 685 686 /* search the table for data */ 687 for ( x = 3; TBL_CHNL; x += 3 ) { 688 if ( channel >= TBL_CHNL ) { 689 return( TBL_BASE_FREQ + 690 ((channel - TBL_CHNL) * TBL_OFFSET) ); 691 } 692 } 693 694 /* not found, must be below the MIN channel */ 695 return( -1 ); 696 } 697 #undef TBL_OFFSET 698 #undef TBL_BASE_FREQ 699 #undef TBL_CHNL 700 701 702 #define TBL_IF (bktr->format_params == BT848_IFORM_F_NTSCJ || \ 703 bktr->format_params == BT848_IFORM_F_NTSCM ? \ 704 nabcst[1] : weurope[1]) 705 706 707 /* Initialise the tuner structures in the bktr_softc */ 708 /* This is needed as the tuner details are no longer globally declared */ 709 710 void select_tuner( bktr_ptr_t bktr, int tuner_type ) { 711 if (tuner_type < Bt848_MAX_TUNER) { 712 bktr->card.tuner = &tuners[ tuner_type ]; 713 } else { 714 bktr->card.tuner = NULL; 715 } 716 } 717 718 /* 719 * Tuner Notes: 720 * Programming the tuner properly is quite complicated. 721 * Here are some notes, based on a FM1246 data sheet for a PAL-I tuner. 722 * The tuner (front end) covers 45.75 Mhz - 855.25 Mhz and an FM band of 723 * 87.5 Mhz to 108.0 Mhz. 724 * 725 * RF and IF. RF = radio frequencies, it is the transmitted signal. 726 * IF is the Intermediate Frequency (the offset from the base 727 * signal where the video, color, audio and NICAM signals are. 728 * 729 * Eg, Picture at 38.9 Mhz, Colour at 34.47 MHz, sound at 32.9 MHz 730 * NICAM at 32.348 Mhz. 731 * Strangely enough, there is an IF (intermediate frequency) for 732 * FM Radio which is 10.7 Mhz. 733 * 734 * The tuner also works in Bands. Philips bands are 735 * FM radio band 87.50 to 108.00 MHz 736 * Low band 45.75 to 170.00 MHz 737 * Mid band 170.00 to 450.00 MHz 738 * High band 450.00 to 855.25 MHz 739 * 740 * 741 * Now we need to set the PLL on the tuner to the required freuqncy. 742 * It has a programmable divisor. 743 * For TV we want 744 * N = 16 (freq RF(pc) + freq IF(pc)) pc is picture carrier and RF and IF 745 * are in MHz. 746 747 * For RADIO we want a different equation. 748 * freq IF is 10.70 MHz (so the data sheet tells me) 749 * N = (freq RF + freq IF) / step size 750 * The step size must be set to 50 khz (so the data sheet tells me) 751 * (note this is 50 kHz, the other things are in MHz) 752 * so we end up with N = 20x(freq RF + 10.7) 753 * 754 */ 755 756 #define LOW_BAND 0 757 #define MID_BAND 1 758 #define HIGH_BAND 2 759 #define FM_RADIO_BAND 3 760 761 762 /* Check if these are correct for other than Philips PAL */ 763 #define STATUSBIT_COLD 0x80 764 #define STATUSBIT_LOCK 0x40 765 #define STATUSBIT_TV 0x20 766 #define STATUSBIT_STEREO 0x10 /* valid if FM (aka not TV) */ 767 #define STATUSBIT_ADC 0x07 768 769 /* 770 * set the frequency of the tuner 771 * If 'type' is TV_FREQUENCY, the frequency is freq MHz*16 772 * If 'type' is FM_RADIO_FREQUENCY, the frequency is freq MHz * 100 773 * (note *16 gives is 4 bits of fraction, eg steps of nnn.0625) 774 * 775 */ 776 int 777 tv_freq( bktr_ptr_t bktr, int frequency, int type ) 778 { 779 const struct TUNER* tuner; 780 u_char addr; 781 u_char control; 782 u_char band; 783 int N; 784 int band_select = 0; 785 #if defined( TEST_TUNER_AFC ) 786 int oldFrequency, afcDelta; 787 #endif 788 789 tuner = bktr->card.tuner; 790 if ( tuner == NULL ) 791 return( -1 ); 792 793 if (tuner == &tuners[TUNER_MT2032]) { 794 mt2032_set_tv_freq(bktr, frequency); 795 return 0; 796 } 797 if (type == TV_FREQUENCY) { 798 /* 799 * select the band based on frequency 800 * XXX FIXME: get the cross-over points from the tuner struct 801 */ 802 if ( frequency < (160 * FREQFACTOR ) ) 803 band_select = LOW_BAND; 804 else if ( frequency < (454 * FREQFACTOR ) ) 805 band_select = MID_BAND; 806 else 807 band_select = HIGH_BAND; 808 809 #if defined( TEST_TUNER_AFC ) 810 if ( bktr->tuner.afc ) 811 frequency -= 4; 812 #endif 813 /* 814 * N = 16 * { fRF(pc) + fIF(pc) } 815 * or N = 16* fRF(pc) + 16*fIF(pc) } 816 * where: 817 * pc is picture carrier, fRF & fIF are in MHz 818 * 819 * fortunatly, frequency is passed in as MHz * 16 820 * and the TBL_IF frequency is also stored in MHz * 16 821 */ 822 N = frequency + TBL_IF; 823 824 /* set the address of the PLL */ 825 addr = bktr->card.tuner_pllAddr; 826 control = tuner->pllControl[ band_select ]; 827 band = tuner->bandAddrs[ band_select ]; 828 829 if(!(band && control)) /* Don't try to set un- */ 830 return(-1); /* supported modes. */ 831 832 if ( frequency > bktr->tuner.frequency ) { 833 i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff ); 834 i2cWrite( bktr, addr, control, band ); 835 } 836 else { 837 i2cWrite( bktr, addr, control, band ); 838 i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff ); 839 } 840 841 #if defined( TUNER_AFC ) 842 if ( bktr->tuner.afc == TRUE ) { 843 #if defined( TEST_TUNER_AFC ) 844 oldFrequency = frequency; 845 #endif 846 if ( (N = do_afc( bktr, addr, N )) < 0 ) { 847 /* AFC failed, restore requested frequency */ 848 N = frequency + TBL_IF; 849 #if defined( TEST_TUNER_AFC ) 850 kprintf("%s: do_afc: failed to lock\n", 851 bktr_name(bktr)); 852 #endif 853 i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff ); 854 } 855 else 856 frequency = N - TBL_IF; 857 #if defined( TEST_TUNER_AFC ) 858 kprintf("%s: do_afc: returned freq %d (%d %% %d)\n", bktr_name(bktr), frequency, frequency / 16, frequency % 16); 859 afcDelta = frequency - oldFrequency; 860 kprintf("%s: changed by: %d clicks (%d mod %d)\n", bktr_name(bktr), afcDelta, afcDelta / 16, afcDelta % 16); 861 #endif 862 } 863 #endif /* TUNER_AFC */ 864 865 bktr->tuner.frequency = frequency; 866 } 867 868 if ( type == FM_RADIO_FREQUENCY ) { 869 band_select = FM_RADIO_BAND; 870 871 /* 872 * N = { fRF(pc) + fIF(pc) }/step_size 873 * The step size is 50kHz for FM radio. 874 * (eg after 102.35MHz comes 102.40 MHz) 875 * fIF is 10.7 MHz (as detailed in the specs) 876 * 877 * frequency is passed in as MHz * 100 878 * 879 * So, we have N = (frequency/100 + 10.70) /(50/1000) 880 */ 881 N = (frequency + 1070)/5; 882 883 /* set the address of the PLL */ 884 addr = bktr->card.tuner_pllAddr; 885 control = tuner->pllControl[ band_select ]; 886 band = tuner->bandAddrs[ band_select ]; 887 888 if(!(band && control)) /* Don't try to set un- */ 889 return(-1); /* supported modes. */ 890 891 band |= bktr->tuner.radio_mode; /* tuner.radio_mode is set in 892 * the ioctls RADIO_SETMODE 893 * and RADIO_GETMODE */ 894 895 i2cWrite( bktr, addr, control, band ); 896 i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff ); 897 898 bktr->tuner.frequency = (N * 5) - 1070; 899 900 901 } 902 903 904 return( 0 ); 905 } 906 907 908 909 #if defined( TUNER_AFC ) 910 /* 911 * 912 */ 913 int 914 do_afc( bktr_ptr_t bktr, int addr, int frequency ) 915 { 916 int step; 917 int status; 918 int origFrequency; 919 920 origFrequency = frequency; 921 922 /* wait for first setting to take effect */ 923 tsleep( BKTR_SLEEP, 0, "tuning", hz/8 ); 924 925 if ( (status = i2cRead( bktr, addr + 1 )) < 0 ) 926 return( -1 ); 927 928 #if defined( TEST_TUNER_AFC ) 929 kprintf( "%s: Original freq: %d, status: 0x%02x\n", bktr_name(bktr), frequency, status ); 930 #endif 931 for ( step = 0; step < AFC_MAX_STEP; ++step ) { 932 if ( (status = i2cRead( bktr, addr + 1 )) < 0 ) 933 goto fubar; 934 if ( !(status & 0x40) ) { 935 #if defined( TEST_TUNER_AFC ) 936 kprintf( "%s: no lock!\n", bktr_name(bktr) ); 937 #endif 938 goto fubar; 939 } 940 941 switch( status & AFC_BITS ) { 942 case AFC_FREQ_CENTERED: 943 #if defined( TEST_TUNER_AFC ) 944 kprintf( "%s: Centered, freq: %d, status: 0x%02x\n", bktr_name(bktr), frequency, status ); 945 #endif 946 return( frequency ); 947 948 case AFC_FREQ_MINUS_125: 949 case AFC_FREQ_MINUS_62: 950 #if defined( TEST_TUNER_AFC ) 951 kprintf( "%s: Low, freq: %d, status: 0x%02x\n", bktr_name(bktr), frequency, status ); 952 #endif 953 --frequency; 954 break; 955 956 case AFC_FREQ_PLUS_62: 957 case AFC_FREQ_PLUS_125: 958 #if defined( TEST_TUNER_AFC ) 959 kprintf( "%s: Hi, freq: %d, status: 0x%02x\n", bktr_name(bktr), frequency, status ); 960 #endif 961 ++frequency; 962 break; 963 } 964 965 i2cWrite( bktr, addr, 966 (frequency>>8) & 0x7f, frequency & 0xff ); 967 DELAY( AFC_DELAY ); 968 } 969 970 fubar: 971 i2cWrite( bktr, addr, 972 (origFrequency>>8) & 0x7f, origFrequency & 0xff ); 973 974 return( -1 ); 975 } 976 #endif /* TUNER_AFC */ 977 #undef TBL_IF 978 979 980 /* 981 * Get the Tuner status and signal strength 982 */ 983 int get_tuner_status( bktr_ptr_t bktr ) { 984 if (bktr->card.tuner == &tuners[TUNER_MT2032]) 985 return 0; 986 return i2cRead( bktr, bktr->card.tuner_pllAddr + 1 ); 987 } 988 989 /* 990 * set the channel of the tuner 991 */ 992 int 993 tv_channel( bktr_ptr_t bktr, int channel ) 994 { 995 int frequency; 996 997 /* calculate the frequency according to tuner type */ 998 if ( (frequency = frequency_lookup( bktr, channel )) < 0 ) 999 return( -1 ); 1000 1001 /* set the new frequency */ 1002 if ( tv_freq( bktr, frequency, TV_FREQUENCY ) < 0 ) 1003 return( -1 ); 1004 1005 /* OK to update records */ 1006 return( (bktr->tuner.channel = channel) ); 1007 } 1008 1009 /* 1010 * get channelset name 1011 */ 1012 int 1013 tuner_getchnlset(struct bktr_chnlset *chnlset) 1014 { 1015 if (( chnlset->index < CHNLSET_MIN ) || 1016 ( chnlset->index > CHNLSET_MAX )) 1017 return( EINVAL ); 1018 1019 memcpy(&chnlset->name, &freqTable[chnlset->index].name, 1020 BT848_MAX_CHNLSET_NAME_LEN); 1021 1022 chnlset->max_channel=freqTable[chnlset->index].ptr[0]; 1023 return( 0 ); 1024 } 1025 1026 1027 1028 1029 #define TDA9887_ADDR 0x86 1030 1031 static int 1032 TDA9887_init(bktr_ptr_t bktr, int output2_enable) 1033 { 1034 u_char addr = TDA9887_ADDR; 1035 1036 i2cWrite(bktr, addr, 0, output2_enable ? 0x50 : 0xd0); 1037 i2cWrite(bktr, addr, 1, 0x6e); /* takeover point / de-emphasis */ 1038 1039 /* PAL BG: 0x09 PAL I: 0x0a NTSC: 0x04 */ 1040 #ifdef MT2032_NTSC 1041 i2cWrite(bktr, addr, 2, 0x04); 1042 #else 1043 i2cWrite(bktr, addr, 2, 0x09); 1044 #endif 1045 return 0; 1046 } 1047 1048 1049 1050 #define MT2032_OPTIMIZE_VCO 1 1051 1052 /* holds the value of XOGC register after init */ 1053 static int MT2032_XOGC = 4; 1054 1055 /* card.tuner_pllAddr not set during init */ 1056 #define MT2032_ADDR 0xc0 1057 1058 #ifndef MT2032_ADDR 1059 #define MT2032_ADDR (bktr->card.tuner_pllAddr) 1060 #endif 1061 1062 static int 1063 _MT2032_GetRegister(bktr_ptr_t bktr, u_char regNum) 1064 { 1065 int ch; 1066 1067 if (i2cWrite(bktr, MT2032_ADDR, regNum, -1) == -1) { 1068 if (bootverbose) 1069 kprintf("%s: MT2032 write failed (i2c addr %#x)\n", 1070 bktr_name(bktr), MT2032_ADDR); 1071 return -1; 1072 } 1073 if ((ch = i2cRead(bktr, MT2032_ADDR + 1)) == -1) { 1074 if (bootverbose) 1075 kprintf("%s: MT2032 get register %d failed\n", 1076 bktr_name(bktr), regNum); 1077 return -1; 1078 } 1079 return ch; 1080 } 1081 1082 static void 1083 _MT2032_SetRegister(bktr_ptr_t bktr, u_char regNum, u_char data) 1084 { 1085 i2cWrite(bktr, MT2032_ADDR, regNum, data); 1086 } 1087 1088 #define MT2032_GetRegister(r) _MT2032_GetRegister(bktr,r) 1089 #define MT2032_SetRegister(r,d) _MT2032_SetRegister(bktr,r,d) 1090 1091 1092 int 1093 mt2032_init(bktr_ptr_t bktr) 1094 { 1095 u_char rdbuf[22]; 1096 int xogc, xok = 0; 1097 int i; 1098 int x; 1099 1100 TDA9887_init(bktr, 0); 1101 1102 for (i = 0; i < 21; i++) { 1103 if ((x = MT2032_GetRegister(i)) == -1) 1104 break; 1105 rdbuf[i] = x; 1106 } 1107 if (i < 21) 1108 return -1; 1109 1110 kprintf("%s: MT2032: Companycode=%02x%02x Part=%02x Revision=%02x\n", 1111 bktr_name(bktr), 1112 rdbuf[0x11], rdbuf[0x12], rdbuf[0x13], rdbuf[0x14]); 1113 if (rdbuf[0x13] != 4) { 1114 kprintf("%s: MT2032 not found or unknown type\n", bktr_name(bktr)); 1115 return -1; 1116 } 1117 1118 /* Initialize Registers per spec. */ 1119 MT2032_SetRegister(2, 0xff); 1120 MT2032_SetRegister(3, 0x0f); 1121 MT2032_SetRegister(4, 0x1f); 1122 MT2032_SetRegister(6, 0xe4); 1123 MT2032_SetRegister(7, 0x8f); 1124 MT2032_SetRegister(8, 0xc3); 1125 MT2032_SetRegister(9, 0x4e); 1126 MT2032_SetRegister(10, 0xec); 1127 MT2032_SetRegister(13, 0x32); 1128 1129 /* Adjust XOGC (register 7), wait for XOK */ 1130 xogc = 7; 1131 do { 1132 DELAY(10000); 1133 xok = MT2032_GetRegister(0x0e) & 0x01; 1134 if (xok == 1) { 1135 break; 1136 } 1137 xogc--; 1138 if (xogc == 3) { 1139 xogc = 4; /* min. 4 per spec */ 1140 break; 1141 } 1142 MT2032_SetRegister(7, 0x88 + xogc); 1143 } while (xok != 1); 1144 1145 TDA9887_init(bktr, 1); 1146 1147 MT2032_XOGC = xogc; 1148 1149 return 0; 1150 } 1151 1152 static int 1153 MT2032_SpurCheck(int f1, int f2, int spectrum_from, int spectrum_to) 1154 { 1155 int n1 = 1, n2, f; 1156 1157 f1 = f1 / 1000; /* scale to kHz to avoid 32bit overflows */ 1158 f2 = f2 / 1000; 1159 spectrum_from /= 1000; 1160 spectrum_to /= 1000; 1161 1162 do { 1163 n2 = -n1; 1164 f = n1 * (f1 - f2); 1165 do { 1166 n2--; 1167 f = f - f2; 1168 if ((f > spectrum_from) && (f < spectrum_to)) { 1169 return 1; 1170 } 1171 } while ((f > (f2 - spectrum_to)) || (n2 > -5)); 1172 n1++; 1173 } while (n1 < 5); 1174 1175 return 0; 1176 } 1177 1178 static int 1179 MT2032_ComputeFreq( 1180 int rfin, 1181 int if1, 1182 int if2, 1183 int spectrum_from, 1184 int spectrum_to, 1185 unsigned char *buf, 1186 int *ret_sel, 1187 int xogc 1188 ) 1189 { /* all in Hz */ 1190 int fref, lo1, lo1n, lo1a, s, sel; 1191 int lo1freq, desired_lo1, desired_lo2, lo2, lo2n, lo2a, 1192 lo2num, lo2freq; 1193 int nLO1adjust; 1194 1195 fref = 5250 * 1000; /* 5.25MHz */ 1196 1197 /* per spec 2.3.1 */ 1198 desired_lo1 = rfin + if1; 1199 lo1 = (2 * (desired_lo1 / 1000) + (fref / 1000)) / (2 * fref / 1000); 1200 lo1freq = lo1 * fref; 1201 desired_lo2 = lo1freq - rfin - if2; 1202 1203 /* per spec 2.3.2 */ 1204 for (nLO1adjust = 1; nLO1adjust < 3; nLO1adjust++) { 1205 if (!MT2032_SpurCheck(lo1freq, desired_lo2, spectrum_from, spectrum_to)) { 1206 break; 1207 } 1208 if (lo1freq < desired_lo1) { 1209 lo1 += nLO1adjust; 1210 } else { 1211 lo1 -= nLO1adjust; 1212 } 1213 1214 lo1freq = lo1 * fref; 1215 desired_lo2 = lo1freq - rfin - if2; 1216 } 1217 1218 /* per spec 2.3.3 */ 1219 s = lo1freq / 1000 / 1000; 1220 1221 if (MT2032_OPTIMIZE_VCO) { 1222 if (s > 1890) { 1223 sel = 0; 1224 } else if (s > 1720) { 1225 sel = 1; 1226 } else if (s > 1530) { 1227 sel = 2; 1228 } else if (s > 1370) { 1229 sel = 3; 1230 } else { 1231 sel = 4;/* >1090 */ 1232 } 1233 } else { 1234 if (s > 1790) { 1235 sel = 0;/* <1958 */ 1236 } else if (s > 1617) { 1237 sel = 1; 1238 } else if (s > 1449) { 1239 sel = 2; 1240 } else if (s > 1291) { 1241 sel = 3; 1242 } else { 1243 sel = 4;/* >1090 */ 1244 } 1245 } 1246 1247 *ret_sel = sel; 1248 1249 /* per spec 2.3.4 */ 1250 lo1n = lo1 / 8; 1251 lo1a = lo1 - (lo1n * 8); 1252 lo2 = desired_lo2 / fref; 1253 lo2n = lo2 / 8; 1254 lo2a = lo2 - (lo2n * 8); 1255 /* scale to fit in 32bit arith */ 1256 lo2num = ((desired_lo2 / 1000) % (fref / 1000)) * 3780 / (fref / 1000); 1257 lo2freq = (lo2a + 8 * lo2n) * fref + lo2num * (fref / 1000) / 3780 * 1000; 1258 1259 if (lo1a < 0 || lo1a > 7 || lo1n < 17 || lo1n > 48 || lo2a < 0 || 1260 lo2a > 7 || lo2n < 17 || lo2n > 30) { 1261 kprintf("MT2032: parameter out of range\n"); 1262 return -1; 1263 } 1264 /* set up MT2032 register map for transfer over i2c */ 1265 buf[0] = lo1n - 1; 1266 buf[1] = lo1a | (sel << 4); 1267 buf[2] = 0x86; /* LOGC */ 1268 buf[3] = 0x0f; /* reserved */ 1269 buf[4] = 0x1f; 1270 buf[5] = (lo2n - 1) | (lo2a << 5); 1271 if (rfin < 400 * 1000 * 1000) { 1272 buf[6] = 0xe4; 1273 } else { 1274 buf[6] = 0xf4; /* set PKEN per rev 1.2 */ 1275 } 1276 1277 buf[7] = 8 + xogc; 1278 buf[8] = 0xc3; /* reserved */ 1279 buf[9] = 0x4e; /* reserved */ 1280 buf[10] = 0xec; /* reserved */ 1281 buf[11] = (lo2num & 0xff); 1282 buf[12] = (lo2num >> 8) | 0x80; /* Lo2RST */ 1283 1284 return 0; 1285 } 1286 1287 static int 1288 MT2032_CheckLOLock(bktr_ptr_t bktr) 1289 { 1290 int t, lock = 0; 1291 for (t = 0; t < 10; t++) { 1292 lock = MT2032_GetRegister(0x0e) & 0x06; 1293 if (lock == 6) { 1294 break; 1295 } 1296 DELAY(1000); 1297 } 1298 return lock; 1299 } 1300 1301 static int 1302 MT2032_OptimizeVCO(bktr_ptr_t bktr, int sel, int lock) 1303 { 1304 int tad1, lo1a; 1305 1306 tad1 = MT2032_GetRegister(0x0f) & 0x07; 1307 1308 if (tad1 == 0) { 1309 return lock; 1310 } 1311 if (tad1 == 1) { 1312 return lock; 1313 } 1314 if (tad1 == 2) { 1315 if (sel == 0) { 1316 return lock; 1317 } else { 1318 sel--; 1319 } 1320 } else { 1321 if (sel < 4) { 1322 sel++; 1323 } else { 1324 return lock; 1325 } 1326 } 1327 lo1a = MT2032_GetRegister(0x01) & 0x07; 1328 MT2032_SetRegister(0x01, lo1a | (sel << 4)); 1329 lock = MT2032_CheckLOLock(bktr); 1330 return lock; 1331 } 1332 1333 static int 1334 MT2032_SetIFFreq(bktr_ptr_t bktr, int rfin, int if1, int if2, int from, int to) 1335 { 1336 u_char buf[21]; 1337 int lint_try, sel, lock = 0; 1338 1339 if (MT2032_ComputeFreq(rfin, if1, if2, from, to, &buf[0], &sel, MT2032_XOGC) == -1) 1340 return -1; 1341 1342 TDA9887_init(bktr, 0); 1343 1344 /* send only the relevant registers per Rev. 1.2 */ 1345 MT2032_SetRegister(0, buf[0x00]); 1346 MT2032_SetRegister(1, buf[0x01]); 1347 MT2032_SetRegister(2, buf[0x02]); 1348 1349 MT2032_SetRegister(5, buf[0x05]); 1350 MT2032_SetRegister(6, buf[0x06]); 1351 MT2032_SetRegister(7, buf[0x07]); 1352 1353 MT2032_SetRegister(11, buf[0x0B]); 1354 MT2032_SetRegister(12, buf[0x0C]); 1355 1356 /* wait for PLLs to lock (per manual), retry LINT if not. */ 1357 for (lint_try = 0; lint_try < 2; lint_try++) { 1358 lock = MT2032_CheckLOLock(bktr); 1359 1360 if (MT2032_OPTIMIZE_VCO) { 1361 lock = MT2032_OptimizeVCO(bktr, sel, lock); 1362 } 1363 if (lock == 6) { 1364 break; 1365 } 1366 /* set LINT to re-init PLLs */ 1367 MT2032_SetRegister(7, 0x80 + 8 + MT2032_XOGC); 1368 DELAY(10000); 1369 MT2032_SetRegister(7, 8 + MT2032_XOGC); 1370 } 1371 if (lock != 6) 1372 kprintf("%s: PLL didn't lock\n", bktr_name(bktr)); 1373 1374 MT2032_SetRegister(2, 0x20); 1375 1376 TDA9887_init(bktr, 1); 1377 return 0; 1378 } 1379 1380 static void 1381 mt2032_set_tv_freq(bktr_ptr_t bktr, unsigned int freq) 1382 { 1383 int if2,from,to; 1384 int stat, tad; 1385 1386 #ifdef MT2032_NTSC 1387 from=40750*1000; 1388 to=46750*1000; 1389 if2=45750*1000; 1390 #else 1391 from=32900*1000; 1392 to=39900*1000; 1393 if2=38900*1000; 1394 #endif 1395 1396 if (MT2032_SetIFFreq(bktr, freq*62500 /* freq*1000*1000/16 */, 1397 1090*1000*1000, if2, from, to) == 0) { 1398 bktr->tuner.frequency = freq; 1399 stat = MT2032_GetRegister(0x0e); 1400 tad = MT2032_GetRegister(0x0f); 1401 if (bootverbose) 1402 kprintf("%s: frequency set to %d, st = %#x, tad = %#x\n", 1403 bktr_name(bktr), freq*62500, stat, tad); 1404 } 1405 } 1406