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 1.18 2005/01/23 07:13:09 julian Exp 34 * $DragonFly: src/sys/dev/video/bktr/bktr_tuner.c,v 1.9 2006/12/22 23:26:26 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/vnode.h> 51 #include <sys/bus.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 }; 272 273 274 /* scaling factor for frequencies expressed as ints */ 275 #define FREQFACTOR 16 276 277 /* 278 * Format: 279 * entry 0: MAX legal channel 280 * entry 1: IF frequency 281 * expressed as fi{mHz} * 16, 282 * eg 45.75mHz == 45.75 * 16 = 732 283 * entry 2: [place holder/future] 284 * entry 3: base of channel record 0 285 * entry 3 + (x*3): base of channel record 'x' 286 * entry LAST: NULL channel entry marking end of records 287 * 288 * Record: 289 * int 0: base channel 290 * int 1: frequency of base channel, 291 * expressed as fb{mHz} * 16, 292 * int 2: offset frequency between channels, 293 * expressed as fo{mHz} * 16, 294 */ 295 296 /* 297 * North American Broadcast Channels: 298 * 299 * 2: 55.25 mHz - 4: 67.25 mHz 300 * 5: 77.25 mHz - 6: 83.25 mHz 301 * 7: 175.25 mHz - 13: 211.25 mHz 302 * 14: 471.25 mHz - 83: 885.25 mHz 303 * 304 * IF freq: 45.75 mHz 305 */ 306 #define OFFSET 6.00 307 static int nabcst[] = { 308 83, (int)( 45.75 * FREQFACTOR), 0, 309 14, (int)(471.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 310 7, (int)(175.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 311 5, (int)( 77.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 312 2, (int)( 55.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 313 0 314 }; 315 #undef OFFSET 316 317 /* 318 * North American Cable Channels, IRC: 319 * 320 * 2: 55.25 mHz - 4: 67.25 mHz 321 * 5: 77.25 mHz - 6: 83.25 mHz 322 * 7: 175.25 mHz - 13: 211.25 mHz 323 * 14: 121.25 mHz - 22: 169.25 mHz 324 * 23: 217.25 mHz - 94: 643.25 mHz 325 * 95: 91.25 mHz - 99: 115.25 mHz 326 * 327 * IF freq: 45.75 mHz 328 */ 329 #define OFFSET 6.00 330 static int irccable[] = { 331 116, (int)( 45.75 * FREQFACTOR), 0, 332 100, (int)(649.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 333 95, (int)( 91.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 334 23, (int)(217.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 335 14, (int)(121.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 336 7, (int)(175.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 337 5, (int)( 77.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 338 2, (int)( 55.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 339 0 340 }; 341 #undef OFFSET 342 343 /* 344 * North American Cable Channels, HRC: 345 * 346 * 2: 54 mHz - 4: 66 mHz 347 * 5: 78 mHz - 6: 84 mHz 348 * 7: 174 mHz - 13: 210 mHz 349 * 14: 120 mHz - 22: 168 mHz 350 * 23: 216 mHz - 94: 642 mHz 351 * 95: 90 mHz - 99: 114 mHz 352 * 353 * IF freq: 45.75 mHz 354 */ 355 #define OFFSET 6.00 356 static int hrccable[] = { 357 116, (int)( 45.75 * FREQFACTOR), 0, 358 100, (int)(648.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 359 95, (int)( 90.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 360 23, (int)(216.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 361 14, (int)(120.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 362 7, (int)(174.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 363 5, (int)( 78.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 364 2, (int)( 54.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 365 0 366 }; 367 #undef OFFSET 368 369 /* 370 * Western European broadcast channels: 371 * 372 * (there are others that appear to vary between countries - rmt) 373 * 374 * here's the table Philips provides: 375 * caution, some of the offsets don't compute... 376 * 377 * 1 4525 700 N21 378 * 379 * 2 4825 700 E2 380 * 3 5525 700 E3 381 * 4 6225 700 E4 382 * 383 * 5 17525 700 E5 384 * 6 18225 700 E6 385 * 7 18925 700 E7 386 * 8 19625 700 E8 387 * 9 20325 700 E9 388 * 10 21025 700 E10 389 * 11 21725 700 E11 390 * 12 22425 700 E12 391 * 392 * 13 5375 700 ITA 393 * 14 6225 700 ITB 394 * 395 * 15 8225 700 ITC 396 * 397 * 16 17525 700 ITD 398 * 17 18325 700 ITE 399 * 400 * 18 19225 700 ITF 401 * 19 20125 700 ITG 402 * 20 21025 700 ITH 403 * 404 * 21 47125 800 E21 405 * 22 47925 800 E22 406 * 23 48725 800 E23 407 * 24 49525 800 E24 408 * 25 50325 800 E25 409 * 26 51125 800 E26 410 * 27 51925 800 E27 411 * 28 52725 800 E28 412 * 29 53525 800 E29 413 * 30 54325 800 E30 414 * 31 55125 800 E31 415 * 32 55925 800 E32 416 * 33 56725 800 E33 417 * 34 57525 800 E34 418 * 35 58325 800 E35 419 * 36 59125 800 E36 420 * 37 59925 800 E37 421 * 38 60725 800 E38 422 * 39 61525 800 E39 423 * 40 62325 800 E40 424 * 41 63125 800 E41 425 * 42 63925 800 E42 426 * 43 64725 800 E43 427 * 44 65525 800 E44 428 * 45 66325 800 E45 429 * 46 67125 800 E46 430 * 47 67925 800 E47 431 * 48 68725 800 E48 432 * 49 69525 800 E49 433 * 50 70325 800 E50 434 * 51 71125 800 E51 435 * 52 71925 800 E52 436 * 53 72725 800 E53 437 * 54 73525 800 E54 438 * 55 74325 800 E55 439 * 56 75125 800 E56 440 * 57 75925 800 E57 441 * 58 76725 800 E58 442 * 59 77525 800 E59 443 * 60 78325 800 E60 444 * 61 79125 800 E61 445 * 62 79925 800 E62 446 * 63 80725 800 E63 447 * 64 81525 800 E64 448 * 65 82325 800 E65 449 * 66 83125 800 E66 450 * 67 83925 800 E67 451 * 68 84725 800 E68 452 * 69 85525 800 E69 453 * 454 * 70 4575 800 IA 455 * 71 5375 800 IB 456 * 72 6175 800 IC 457 * 458 * 74 6925 700 S01 459 * 75 7625 700 S02 460 * 76 8325 700 S03 461 * 462 * 80 10525 700 S1 463 * 81 11225 700 S2 464 * 82 11925 700 S3 465 * 83 12625 700 S4 466 * 84 13325 700 S5 467 * 85 14025 700 S6 468 * 86 14725 700 S7 469 * 87 15425 700 S8 470 * 88 16125 700 S9 471 * 89 16825 700 S10 472 * 90 23125 700 S11 473 * 91 23825 700 S12 474 * 92 24525 700 S13 475 * 93 25225 700 S14 476 * 94 25925 700 S15 477 * 95 26625 700 S16 478 * 96 27325 700 S17 479 * 97 28025 700 S18 480 * 98 28725 700 S19 481 * 99 29425 700 S20 482 * 483 * 484 * Channels S21 - S41 are taken from 485 * http://gemma.apple.com:80/dev/technotes/tn/tn1012.html 486 * 487 * 100 30325 800 S21 488 * 101 31125 800 S22 489 * 102 31925 800 S23 490 * 103 32725 800 S24 491 * 104 33525 800 S25 492 * 105 34325 800 S26 493 * 106 35125 800 S27 494 * 107 35925 800 S28 495 * 108 36725 800 S29 496 * 109 37525 800 S30 497 * 110 38325 800 S31 498 * 111 39125 800 S32 499 * 112 39925 800 S33 500 * 113 40725 800 S34 501 * 114 41525 800 S35 502 * 115 42325 800 S36 503 * 116 43125 800 S37 504 * 117 43925 800 S38 505 * 118 44725 800 S39 506 * 119 45525 800 S40 507 * 120 46325 800 S41 508 * 509 * 121 3890 000 IFFREQ 510 * 511 */ 512 static int weurope[] = { 513 121, (int)( 38.90 * FREQFACTOR), 0, 514 100, (int)(303.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 515 90, (int)(231.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR), 516 80, (int)(105.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR), 517 74, (int)( 69.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR), 518 21, (int)(471.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 519 17, (int)(183.25 * FREQFACTOR), (int)(9.00 * FREQFACTOR), 520 16, (int)(175.25 * FREQFACTOR), (int)(9.00 * FREQFACTOR), 521 15, (int)(82.25 * FREQFACTOR), (int)(8.50 * FREQFACTOR), 522 13, (int)(53.75 * FREQFACTOR), (int)(8.50 * FREQFACTOR), 523 5, (int)(175.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR), 524 2, (int)(48.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR), 525 0 526 }; 527 528 /* 529 * Japanese Broadcast Channels: 530 * 531 * 1: 91.25MHz - 3: 103.25MHz 532 * 4: 171.25MHz - 7: 189.25MHz 533 * 8: 193.25MHz - 12: 217.25MHz (VHF) 534 * 13: 471.25MHz - 62: 765.25MHz (UHF) 535 * 536 * IF freq: 45.75 mHz 537 * OR 538 * IF freq: 58.75 mHz 539 */ 540 #define OFFSET 6.00 541 #define IF_FREQ 45.75 542 static int jpnbcst[] = { 543 62, (int)(IF_FREQ * FREQFACTOR), 0, 544 13, (int)(471.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 545 8, (int)(193.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 546 4, (int)(171.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 547 1, (int)( 91.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 548 0 549 }; 550 #undef IF_FREQ 551 #undef OFFSET 552 553 /* 554 * Japanese Cable Channels: 555 * 556 * 1: 91.25MHz - 3: 103.25MHz 557 * 4: 171.25MHz - 7: 189.25MHz 558 * 8: 193.25MHz - 12: 217.25MHz 559 * 13: 109.25MHz - 21: 157.25MHz 560 * 22: 165.25MHz 561 * 23: 223.25MHz - 63: 463.25MHz 562 * 563 * IF freq: 45.75 mHz 564 */ 565 #define OFFSET 6.00 566 #define IF_FREQ 45.75 567 static int jpncable[] = { 568 63, (int)(IF_FREQ * FREQFACTOR), 0, 569 23, (int)(223.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 570 22, (int)(165.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 571 13, (int)(109.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 572 8, (int)(193.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 573 4, (int)(171.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 574 1, (int)( 91.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 575 0 576 }; 577 #undef IF_FREQ 578 #undef OFFSET 579 580 /* 581 * xUSSR Broadcast Channels: 582 * 583 * 1: 49.75MHz - 2: 59.25MHz 584 * 3: 77.25MHz - 5: 93.25MHz 585 * 6: 175.25MHz - 12: 223.25MHz 586 * 13-20 - not exist 587 * 21: 471.25MHz - 34: 575.25MHz 588 * 35: 583.25MHz - 69: 855.25MHz 589 * 590 * Cable channels 591 * 592 * 70: 111.25MHz - 77: 167.25MHz 593 * 78: 231.25MHz -107: 463.25MHz 594 * 595 * IF freq: 38.90 MHz 596 */ 597 #define IF_FREQ 38.90 598 static int xussr[] = { 599 107, (int)(IF_FREQ * FREQFACTOR), 0, 600 78, (int)(231.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 601 70, (int)(111.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 602 35, (int)(583.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 603 21, (int)(471.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 604 6, (int)(175.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 605 3, (int)( 77.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 606 1, (int)( 49.75 * FREQFACTOR), (int)(9.50 * FREQFACTOR), 607 0 608 }; 609 #undef IF_FREQ 610 611 /* 612 * Australian broadcast channels 613 */ 614 #define OFFSET 7.00 615 #define IF_FREQ 38.90 616 static int australia[] = { 617 83, (int)(IF_FREQ * FREQFACTOR), 0, 618 28, (int)(527.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 619 10, (int)(209.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 620 6, (int)(175.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 621 4, (int)( 95.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 622 3, (int)( 86.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 623 1, (int)( 57.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 624 0 625 }; 626 #undef OFFSET 627 #undef IF_FREQ 628 629 /* 630 * France broadcast channels 631 */ 632 #define OFFSET 8.00 633 #define IF_FREQ 38.90 634 static int france[] = { 635 69, (int)(IF_FREQ * FREQFACTOR), 0, 636 21, (int)(471.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), /* 21 -> 69 */ 637 5, (int)(176.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), /* 5 -> 10 */ 638 4, (int)( 63.75 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), /* 4 */ 639 3, (int)( 60.50 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), /* 3 */ 640 1, (int)( 47.75 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), /* 1 2 */ 641 0 642 }; 643 #undef OFFSET 644 #undef IF_FREQ 645 646 static struct { 647 int *ptr; 648 char name[BT848_MAX_CHNLSET_NAME_LEN]; 649 } freqTable[] = { 650 {NULL, ""}, 651 {nabcst, "nabcst"}, 652 {irccable, "cableirc"}, 653 {hrccable, "cablehrc"}, 654 {weurope, "weurope"}, 655 {jpnbcst, "jpnbcst"}, 656 {jpncable, "jpncable"}, 657 {xussr, "xussr"}, 658 {australia, "australia"}, 659 {france, "france"}, 660 661 }; 662 663 #define TBL_CHNL freqTable[ bktr->tuner.chnlset ].ptr[ x ] 664 #define TBL_BASE_FREQ freqTable[ bktr->tuner.chnlset ].ptr[ x + 1 ] 665 #define TBL_OFFSET freqTable[ bktr->tuner.chnlset ].ptr[ x + 2 ] 666 static int 667 frequency_lookup( bktr_ptr_t bktr, int channel ) 668 { 669 int x; 670 671 /* check for "> MAX channel" */ 672 x = 0; 673 if ( channel > TBL_CHNL ) 674 return( -1 ); 675 676 /* search the table for data */ 677 for ( x = 3; TBL_CHNL; x += 3 ) { 678 if ( channel >= TBL_CHNL ) { 679 return( TBL_BASE_FREQ + 680 ((channel - TBL_CHNL) * TBL_OFFSET) ); 681 } 682 } 683 684 /* not found, must be below the MIN channel */ 685 return( -1 ); 686 } 687 #undef TBL_OFFSET 688 #undef TBL_BASE_FREQ 689 #undef TBL_CHNL 690 691 692 #define TBL_IF freqTable[ bktr->tuner.chnlset ].ptr[ 1 ] 693 694 695 /* Initialise the tuner structures in the bktr_softc */ 696 /* This is needed as the tuner details are no longer globally declared */ 697 698 void select_tuner( bktr_ptr_t bktr, int tuner_type ) { 699 if (tuner_type < Bt848_MAX_TUNER) { 700 bktr->card.tuner = &tuners[ tuner_type ]; 701 } else { 702 bktr->card.tuner = NULL; 703 } 704 } 705 706 /* 707 * Tuner Notes: 708 * Programming the tuner properly is quite complicated. 709 * Here are some notes, based on a FM1246 data sheet for a PAL-I tuner. 710 * The tuner (front end) covers 45.75 Mhz - 855.25 Mhz and an FM band of 711 * 87.5 Mhz to 108.0 Mhz. 712 * 713 * RF and IF. RF = radio frequencies, it is the transmitted signal. 714 * IF is the Intermediate Frequency (the offset from the base 715 * signal where the video, color, audio and NICAM signals are. 716 * 717 * Eg, Picture at 38.9 Mhz, Colour at 34.47 MHz, sound at 32.9 MHz 718 * NICAM at 32.348 Mhz. 719 * Strangely enough, there is an IF (intermediate frequency) for 720 * FM Radio which is 10.7 Mhz. 721 * 722 * The tuner also works in Bands. Philips bands are 723 * FM radio band 87.50 to 108.00 MHz 724 * Low band 45.75 to 170.00 MHz 725 * Mid band 170.00 to 450.00 MHz 726 * High band 450.00 to 855.25 MHz 727 * 728 * 729 * Now we need to set the PLL on the tuner to the required freuqncy. 730 * It has a programmable divisor. 731 * For TV we want 732 * N = 16 (freq RF(pc) + freq IF(pc)) pc is picture carrier and RF and IF 733 * are in MHz. 734 735 * For RADIO we want a different equation. 736 * freq IF is 10.70 MHz (so the data sheet tells me) 737 * N = (freq RF + freq IF) / step size 738 * The step size must be set to 50 khz (so the data sheet tells me) 739 * (note this is 50 kHz, the other things are in MHz) 740 * so we end up with N = 20x(freq RF + 10.7) 741 * 742 */ 743 744 #define LOW_BAND 0 745 #define MID_BAND 1 746 #define HIGH_BAND 2 747 #define FM_RADIO_BAND 3 748 749 750 /* Check if these are correct for other than Philips PAL */ 751 #define STATUSBIT_COLD 0x80 752 #define STATUSBIT_LOCK 0x40 753 #define STATUSBIT_TV 0x20 754 #define STATUSBIT_STEREO 0x10 /* valid if FM (aka not TV) */ 755 #define STATUSBIT_ADC 0x07 756 757 /* 758 * set the frequency of the tuner 759 * If 'type' is TV_FREQUENCY, the frequency is freq MHz*16 760 * If 'type' is FM_RADIO_FREQUENCY, the frequency is freq MHz * 100 761 * (note *16 gives is 4 bits of fraction, eg steps of nnn.0625) 762 * 763 */ 764 int 765 tv_freq( bktr_ptr_t bktr, int frequency, int type ) 766 { 767 const struct TUNER* tuner; 768 u_char addr; 769 u_char control; 770 u_char band; 771 int N; 772 int band_select = 0; 773 #if defined( TEST_TUNER_AFC ) 774 int oldFrequency, afcDelta; 775 #endif 776 777 tuner = bktr->card.tuner; 778 if ( tuner == NULL ) 779 return( -1 ); 780 781 if (tuner == &tuners[TUNER_MT2032]) { 782 mt2032_set_tv_freq(bktr, frequency); 783 return 0; 784 } 785 if (type == TV_FREQUENCY) { 786 /* 787 * select the band based on frequency 788 * XXX FIXME: get the cross-over points from the tuner struct 789 */ 790 if ( frequency < (160 * FREQFACTOR ) ) 791 band_select = LOW_BAND; 792 else if ( frequency < (454 * FREQFACTOR ) ) 793 band_select = MID_BAND; 794 else 795 band_select = HIGH_BAND; 796 797 #if defined( TEST_TUNER_AFC ) 798 if ( bktr->tuner.afc ) 799 frequency -= 4; 800 #endif 801 /* 802 * N = 16 * { fRF(pc) + fIF(pc) } 803 * or N = 16* fRF(pc) + 16*fIF(pc) } 804 * where: 805 * pc is picture carrier, fRF & fIF are in MHz 806 * 807 * fortunatly, frequency is passed in as MHz * 16 808 * and the TBL_IF frequency is also stored in MHz * 16 809 */ 810 N = frequency + TBL_IF; 811 812 /* set the address of the PLL */ 813 addr = bktr->card.tuner_pllAddr; 814 control = tuner->pllControl[ band_select ]; 815 band = tuner->bandAddrs[ band_select ]; 816 817 if(!(band && control)) /* Don't try to set un- */ 818 return(-1); /* supported modes. */ 819 820 if ( frequency > bktr->tuner.frequency ) { 821 i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff ); 822 i2cWrite( bktr, addr, control, band ); 823 } 824 else { 825 i2cWrite( bktr, addr, control, band ); 826 i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff ); 827 } 828 829 #if defined( TUNER_AFC ) 830 if ( bktr->tuner.afc == TRUE ) { 831 #if defined( TEST_TUNER_AFC ) 832 oldFrequency = frequency; 833 #endif 834 if ( (N = do_afc( bktr, addr, N )) < 0 ) { 835 /* AFC failed, restore requested frequency */ 836 N = frequency + TBL_IF; 837 #if defined( TEST_TUNER_AFC ) 838 kprintf("%s: do_afc: failed to lock\n", 839 bktr_name(bktr)); 840 #endif 841 i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff ); 842 } 843 else 844 frequency = N - TBL_IF; 845 #if defined( TEST_TUNER_AFC ) 846 kprintf("%s: do_afc: returned freq %d (%d %% %d)\n", bktr_name(bktr), frequency, frequency / 16, frequency % 16); 847 afcDelta = frequency - oldFrequency; 848 kprintf("%s: changed by: %d clicks (%d mod %d)\n", bktr_name(bktr), afcDelta, afcDelta / 16, afcDelta % 16); 849 #endif 850 } 851 #endif /* TUNER_AFC */ 852 853 bktr->tuner.frequency = frequency; 854 } 855 856 if ( type == FM_RADIO_FREQUENCY ) { 857 band_select = FM_RADIO_BAND; 858 859 /* 860 * N = { fRF(pc) + fIF(pc) }/step_size 861 * The step size is 50kHz for FM radio. 862 * (eg after 102.35MHz comes 102.40 MHz) 863 * fIF is 10.7 MHz (as detailed in the specs) 864 * 865 * frequency is passed in as MHz * 100 866 * 867 * So, we have N = (frequency/100 + 10.70) /(50/1000) 868 */ 869 N = (frequency + 1070)/5; 870 871 /* set the address of the PLL */ 872 addr = bktr->card.tuner_pllAddr; 873 control = tuner->pllControl[ band_select ]; 874 band = tuner->bandAddrs[ band_select ]; 875 876 if(!(band && control)) /* Don't try to set un- */ 877 return(-1); /* supported modes. */ 878 879 band |= bktr->tuner.radio_mode; /* tuner.radio_mode is set in 880 * the ioctls RADIO_SETMODE 881 * and RADIO_GETMODE */ 882 883 i2cWrite( bktr, addr, control, band ); 884 i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff ); 885 886 bktr->tuner.frequency = (N * 5) - 1070; 887 888 889 } 890 891 892 return( 0 ); 893 } 894 895 896 897 #if defined( TUNER_AFC ) 898 /* 899 * 900 */ 901 int 902 do_afc( bktr_ptr_t bktr, int addr, int frequency ) 903 { 904 int step; 905 int status; 906 int origFrequency; 907 908 origFrequency = frequency; 909 910 /* wait for first setting to take effect */ 911 tsleep( BKTR_SLEEP, 0, "tuning", hz/8 ); 912 913 if ( (status = i2cRead( bktr, addr + 1 )) < 0 ) 914 return( -1 ); 915 916 #if defined( TEST_TUNER_AFC ) 917 kprintf( "%s: Original freq: %d, status: 0x%02x\n", bktr_name(bktr), frequency, status ); 918 #endif 919 for ( step = 0; step < AFC_MAX_STEP; ++step ) { 920 if ( (status = i2cRead( bktr, addr + 1 )) < 0 ) 921 goto fubar; 922 if ( !(status & 0x40) ) { 923 #if defined( TEST_TUNER_AFC ) 924 kprintf( "%s: no lock!\n", bktr_name(bktr) ); 925 #endif 926 goto fubar; 927 } 928 929 switch( status & AFC_BITS ) { 930 case AFC_FREQ_CENTERED: 931 #if defined( TEST_TUNER_AFC ) 932 kprintf( "%s: Centered, freq: %d, status: 0x%02x\n", bktr_name(bktr), frequency, status ); 933 #endif 934 return( frequency ); 935 936 case AFC_FREQ_MINUS_125: 937 case AFC_FREQ_MINUS_62: 938 #if defined( TEST_TUNER_AFC ) 939 kprintf( "%s: Low, freq: %d, status: 0x%02x\n", bktr_name(bktr), frequency, status ); 940 #endif 941 --frequency; 942 break; 943 944 case AFC_FREQ_PLUS_62: 945 case AFC_FREQ_PLUS_125: 946 #if defined( TEST_TUNER_AFC ) 947 kprintf( "%s: Hi, freq: %d, status: 0x%02x\n", bktr_name(bktr), frequency, status ); 948 #endif 949 ++frequency; 950 break; 951 } 952 953 i2cWrite( bktr, addr, 954 (frequency>>8) & 0x7f, frequency & 0xff ); 955 DELAY( AFC_DELAY ); 956 } 957 958 fubar: 959 i2cWrite( bktr, addr, 960 (origFrequency>>8) & 0x7f, origFrequency & 0xff ); 961 962 return( -1 ); 963 } 964 #endif /* TUNER_AFC */ 965 #undef TBL_IF 966 967 968 /* 969 * Get the Tuner status and signal strength 970 */ 971 int get_tuner_status( bktr_ptr_t bktr ) { 972 if (bktr->card.tuner == &tuners[TUNER_MT2032]) 973 return 0; 974 return i2cRead( bktr, bktr->card.tuner_pllAddr + 1 ); 975 } 976 977 /* 978 * set the channel of the tuner 979 */ 980 int 981 tv_channel( bktr_ptr_t bktr, int channel ) 982 { 983 int frequency; 984 985 /* calculate the frequency according to tuner type */ 986 if ( (frequency = frequency_lookup( bktr, channel )) < 0 ) 987 return( -1 ); 988 989 /* set the new frequency */ 990 if ( tv_freq( bktr, frequency, TV_FREQUENCY ) < 0 ) 991 return( -1 ); 992 993 /* OK to update records */ 994 return( (bktr->tuner.channel = channel) ); 995 } 996 997 /* 998 * get channelset name 999 */ 1000 int 1001 tuner_getchnlset(struct bktr_chnlset *chnlset) 1002 { 1003 if (( chnlset->index < CHNLSET_MIN ) || 1004 ( chnlset->index > CHNLSET_MAX )) 1005 return( EINVAL ); 1006 1007 memcpy(&chnlset->name, &freqTable[chnlset->index].name, 1008 BT848_MAX_CHNLSET_NAME_LEN); 1009 1010 chnlset->max_channel=freqTable[chnlset->index].ptr[0]; 1011 return( 0 ); 1012 } 1013 1014 1015 1016 1017 #define TDA9887_ADDR 0x86 1018 1019 static int 1020 TDA9887_init(bktr_ptr_t bktr, int output2_enable) 1021 { 1022 u_char addr = TDA9887_ADDR; 1023 1024 i2cWrite(bktr, addr, 0, output2_enable ? 0x50 : 0xd0); 1025 i2cWrite(bktr, addr, 1, 0x6e); /* takeover point / de-emphasis */ 1026 1027 /* PAL BG: 0x09 PAL I: 0x0a NTSC: 0x04 */ 1028 #ifdef MT2032_NTSC 1029 i2cWrite(bktr, addr, 2, 0x04); 1030 #else 1031 i2cWrite(bktr, addr, 2, 0x09); 1032 #endif 1033 return 0; 1034 } 1035 1036 1037 1038 #define MT2032_OPTIMIZE_VCO 1 1039 1040 /* holds the value of XOGC register after init */ 1041 static int MT2032_XOGC = 4; 1042 1043 /* card.tuner_pllAddr not set during init */ 1044 #define MT2032_ADDR 0xc0 1045 1046 #ifndef MT2032_ADDR 1047 #define MT2032_ADDR (bktr->card.tuner_pllAddr) 1048 #endif 1049 1050 static int 1051 _MT2032_GetRegister(bktr_ptr_t bktr, u_char regNum) 1052 { 1053 int ch; 1054 1055 if (i2cWrite(bktr, MT2032_ADDR, regNum, -1) == -1) { 1056 if (bootverbose) 1057 kprintf("%s: MT2032 write failed (i2c addr %#x)\n", 1058 bktr_name(bktr), MT2032_ADDR); 1059 return -1; 1060 } 1061 if ((ch = i2cRead(bktr, MT2032_ADDR + 1)) == -1) { 1062 if (bootverbose) 1063 kprintf("%s: MT2032 get register %d failed\n", 1064 bktr_name(bktr), regNum); 1065 return -1; 1066 } 1067 return ch; 1068 } 1069 1070 static void 1071 _MT2032_SetRegister(bktr_ptr_t bktr, u_char regNum, u_char data) 1072 { 1073 i2cWrite(bktr, MT2032_ADDR, regNum, data); 1074 } 1075 1076 #define MT2032_GetRegister(r) _MT2032_GetRegister(bktr,r) 1077 #define MT2032_SetRegister(r,d) _MT2032_SetRegister(bktr,r,d) 1078 1079 1080 int 1081 mt2032_init(bktr_ptr_t bktr) 1082 { 1083 u_char rdbuf[22]; 1084 int xogc, xok = 0; 1085 int i; 1086 int x; 1087 1088 TDA9887_init(bktr, 0); 1089 1090 for (i = 0; i < 21; i++) { 1091 if ((x = MT2032_GetRegister(i)) == -1) 1092 break; 1093 rdbuf[i] = x; 1094 } 1095 if (i < 21) 1096 return -1; 1097 1098 kprintf("%s: MT2032: Companycode=%02x%02x Part=%02x Revision=%02x\n", 1099 bktr_name(bktr), 1100 rdbuf[0x11], rdbuf[0x12], rdbuf[0x13], rdbuf[0x14]); 1101 if (rdbuf[0x13] != 4) { 1102 kprintf("%s: MT2032 not found or unknown type\n", bktr_name(bktr)); 1103 return -1; 1104 } 1105 1106 /* Initialize Registers per spec. */ 1107 MT2032_SetRegister(2, 0xff); 1108 MT2032_SetRegister(3, 0x0f); 1109 MT2032_SetRegister(4, 0x1f); 1110 MT2032_SetRegister(6, 0xe4); 1111 MT2032_SetRegister(7, 0x8f); 1112 MT2032_SetRegister(8, 0xc3); 1113 MT2032_SetRegister(9, 0x4e); 1114 MT2032_SetRegister(10, 0xec); 1115 MT2032_SetRegister(13, 0x32); 1116 1117 /* Adjust XOGC (register 7), wait for XOK */ 1118 xogc = 7; 1119 do { 1120 DELAY(10000); 1121 xok = MT2032_GetRegister(0x0e) & 0x01; 1122 if (xok == 1) { 1123 break; 1124 } 1125 xogc--; 1126 if (xogc == 3) { 1127 xogc = 4; /* min. 4 per spec */ 1128 break; 1129 } 1130 MT2032_SetRegister(7, 0x88 + xogc); 1131 } while (xok != 1); 1132 1133 TDA9887_init(bktr, 1); 1134 1135 MT2032_XOGC = xogc; 1136 1137 return 0; 1138 } 1139 1140 static int 1141 MT2032_SpurCheck(int f1, int f2, int spectrum_from, int spectrum_to) 1142 { 1143 int n1 = 1, n2, f; 1144 1145 f1 = f1 / 1000; /* scale to kHz to avoid 32bit overflows */ 1146 f2 = f2 / 1000; 1147 spectrum_from /= 1000; 1148 spectrum_to /= 1000; 1149 1150 do { 1151 n2 = -n1; 1152 f = n1 * (f1 - f2); 1153 do { 1154 n2--; 1155 f = f - f2; 1156 if ((f > spectrum_from) && (f < spectrum_to)) { 1157 return 1; 1158 } 1159 } while ((f > (f2 - spectrum_to)) || (n2 > -5)); 1160 n1++; 1161 } while (n1 < 5); 1162 1163 return 0; 1164 } 1165 1166 static int 1167 MT2032_ComputeFreq( 1168 int rfin, 1169 int if1, 1170 int if2, 1171 int spectrum_from, 1172 int spectrum_to, 1173 unsigned char *buf, 1174 int *ret_sel, 1175 int xogc 1176 ) 1177 { /* all in Hz */ 1178 int fref, lo1, lo1n, lo1a, s, sel; 1179 int lo1freq, desired_lo1, desired_lo2, lo2, lo2n, lo2a, 1180 lo2num, lo2freq; 1181 int nLO1adjust; 1182 1183 fref = 5250 * 1000; /* 5.25MHz */ 1184 1185 /* per spec 2.3.1 */ 1186 desired_lo1 = rfin + if1; 1187 lo1 = (2 * (desired_lo1 / 1000) + (fref / 1000)) / (2 * fref / 1000); 1188 lo1freq = lo1 * fref; 1189 desired_lo2 = lo1freq - rfin - if2; 1190 1191 /* per spec 2.3.2 */ 1192 for (nLO1adjust = 1; nLO1adjust < 3; nLO1adjust++) { 1193 if (!MT2032_SpurCheck(lo1freq, desired_lo2, spectrum_from, spectrum_to)) { 1194 break; 1195 } 1196 if (lo1freq < desired_lo1) { 1197 lo1 += nLO1adjust; 1198 } else { 1199 lo1 -= nLO1adjust; 1200 } 1201 1202 lo1freq = lo1 * fref; 1203 desired_lo2 = lo1freq - rfin - if2; 1204 } 1205 1206 /* per spec 2.3.3 */ 1207 s = lo1freq / 1000 / 1000; 1208 1209 if (MT2032_OPTIMIZE_VCO) { 1210 if (s > 1890) { 1211 sel = 0; 1212 } else if (s > 1720) { 1213 sel = 1; 1214 } else if (s > 1530) { 1215 sel = 2; 1216 } else if (s > 1370) { 1217 sel = 3; 1218 } else { 1219 sel = 4;/* >1090 */ 1220 } 1221 } else { 1222 if (s > 1790) { 1223 sel = 0;/* <1958 */ 1224 } else if (s > 1617) { 1225 sel = 1; 1226 } else if (s > 1449) { 1227 sel = 2; 1228 } else if (s > 1291) { 1229 sel = 3; 1230 } else { 1231 sel = 4;/* >1090 */ 1232 } 1233 } 1234 1235 *ret_sel = sel; 1236 1237 /* per spec 2.3.4 */ 1238 lo1n = lo1 / 8; 1239 lo1a = lo1 - (lo1n * 8); 1240 lo2 = desired_lo2 / fref; 1241 lo2n = lo2 / 8; 1242 lo2a = lo2 - (lo2n * 8); 1243 /* scale to fit in 32bit arith */ 1244 lo2num = ((desired_lo2 / 1000) % (fref / 1000)) * 3780 / (fref / 1000); 1245 lo2freq = (lo2a + 8 * lo2n) * fref + lo2num * (fref / 1000) / 3780 * 1000; 1246 1247 if (lo1a < 0 || lo1a > 7 || lo1n < 17 || lo1n > 48 || lo2a < 0 || 1248 lo2a > 7 || lo2n < 17 || lo2n > 30) { 1249 kprintf("MT2032: parameter out of range\n"); 1250 return -1; 1251 } 1252 /* set up MT2032 register map for transfer over i2c */ 1253 buf[0] = lo1n - 1; 1254 buf[1] = lo1a | (sel << 4); 1255 buf[2] = 0x86; /* LOGC */ 1256 buf[3] = 0x0f; /* reserved */ 1257 buf[4] = 0x1f; 1258 buf[5] = (lo2n - 1) | (lo2a << 5); 1259 if (rfin < 400 * 1000 * 1000) { 1260 buf[6] = 0xe4; 1261 } else { 1262 buf[6] = 0xf4; /* set PKEN per rev 1.2 */ 1263 } 1264 1265 buf[7] = 8 + xogc; 1266 buf[8] = 0xc3; /* reserved */ 1267 buf[9] = 0x4e; /* reserved */ 1268 buf[10] = 0xec; /* reserved */ 1269 buf[11] = (lo2num & 0xff); 1270 buf[12] = (lo2num >> 8) | 0x80; /* Lo2RST */ 1271 1272 return 0; 1273 } 1274 1275 static int 1276 MT2032_CheckLOLock(bktr_ptr_t bktr) 1277 { 1278 int t, lock = 0; 1279 for (t = 0; t < 10; t++) { 1280 lock = MT2032_GetRegister(0x0e) & 0x06; 1281 if (lock == 6) { 1282 break; 1283 } 1284 DELAY(1000); 1285 } 1286 return lock; 1287 } 1288 1289 static int 1290 MT2032_OptimizeVCO(bktr_ptr_t bktr, int sel, int lock) 1291 { 1292 int tad1, lo1a; 1293 1294 tad1 = MT2032_GetRegister(0x0f) & 0x07; 1295 1296 if (tad1 == 0) { 1297 return lock; 1298 } 1299 if (tad1 == 1) { 1300 return lock; 1301 } 1302 if (tad1 == 2) { 1303 if (sel == 0) { 1304 return lock; 1305 } else { 1306 sel--; 1307 } 1308 } else { 1309 if (sel < 4) { 1310 sel++; 1311 } else { 1312 return lock; 1313 } 1314 } 1315 lo1a = MT2032_GetRegister(0x01) & 0x07; 1316 MT2032_SetRegister(0x01, lo1a | (sel << 4)); 1317 lock = MT2032_CheckLOLock(bktr); 1318 return lock; 1319 } 1320 1321 static int 1322 MT2032_SetIFFreq(bktr_ptr_t bktr, int rfin, int if1, int if2, int from, int to) 1323 { 1324 u_char buf[21]; 1325 int lint_try, sel, lock = 0; 1326 1327 if (MT2032_ComputeFreq(rfin, if1, if2, from, to, &buf[0], &sel, MT2032_XOGC) == -1) 1328 return -1; 1329 1330 TDA9887_init(bktr, 0); 1331 1332 /* send only the relevant registers per Rev. 1.2 */ 1333 MT2032_SetRegister(0, buf[0x00]); 1334 MT2032_SetRegister(1, buf[0x01]); 1335 MT2032_SetRegister(2, buf[0x02]); 1336 1337 MT2032_SetRegister(5, buf[0x05]); 1338 MT2032_SetRegister(6, buf[0x06]); 1339 MT2032_SetRegister(7, buf[0x07]); 1340 1341 MT2032_SetRegister(11, buf[0x0B]); 1342 MT2032_SetRegister(12, buf[0x0C]); 1343 1344 /* wait for PLLs to lock (per manual), retry LINT if not. */ 1345 for (lint_try = 0; lint_try < 2; lint_try++) { 1346 lock = MT2032_CheckLOLock(bktr); 1347 1348 if (MT2032_OPTIMIZE_VCO) { 1349 lock = MT2032_OptimizeVCO(bktr, sel, lock); 1350 } 1351 if (lock == 6) { 1352 break; 1353 } 1354 /* set LINT to re-init PLLs */ 1355 MT2032_SetRegister(7, 0x80 + 8 + MT2032_XOGC); 1356 DELAY(10000); 1357 MT2032_SetRegister(7, 8 + MT2032_XOGC); 1358 } 1359 if (lock != 6) 1360 kprintf("%s: PLL didn't lock\n", bktr_name(bktr)); 1361 1362 MT2032_SetRegister(2, 0x20); 1363 1364 TDA9887_init(bktr, 1); 1365 return 0; 1366 } 1367 1368 static void 1369 mt2032_set_tv_freq(bktr_ptr_t bktr, unsigned int freq) 1370 { 1371 int if2,from,to; 1372 int stat, tad; 1373 1374 #ifdef MT2032_NTSC 1375 from=40750*1000; 1376 to=46750*1000; 1377 if2=45750*1000; 1378 #else 1379 from=32900*1000; 1380 to=39900*1000; 1381 if2=38900*1000; 1382 #endif 1383 1384 if (MT2032_SetIFFreq(bktr, freq*62500 /* freq*1000*1000/16 */, 1385 1090*1000*1000, if2, from, to) == 0) { 1386 bktr->tuner.frequency = freq; 1387 stat = MT2032_GetRegister(0x0e); 1388 tad = MT2032_GetRegister(0x0f); 1389 if (bootverbose) 1390 kprintf("%s: frequency set to %d, st = %#x, tad = %#x\n", 1391 bktr_name(bktr), freq*62500, stat, tad); 1392 } 1393 } 1394