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sys/dev/video/bktr/bktr_tuner.c
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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 */ 35 36 37 /* 38 * This is part of the Driver for Video Capture Cards (Frame grabbers) 39 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879 40 * chipset. 41 * Copyright Roger Hardiman and Amancio Hasty. 42 * 43 * bktr_tuner : This deals with controlling the tuner fitted to TV cards. 44 */ 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/kernel.h> 49 #include <sys/bus.h> 50 #include <sys/event.h> 51 52 #include <bus/pci/pcivar.h> 53 54 #include <dev/video/meteor/ioctl_meteor.h> 55 #include <dev/video/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 56 #include <dev/video/bktr/bktr_reg.h> 57 #include <dev/video/bktr/bktr_tuner.h> 58 #include <dev/video/bktr/bktr_card.h> 59 #include <dev/video/bktr/bktr_core.h> 60 61 62 63 #if defined( TUNER_AFC ) 64 #define AFC_DELAY 10000 /* 10 millisend delay */ 65 #define AFC_BITS 0x07 66 #define AFC_FREQ_MINUS_125 0x00 67 #define AFC_FREQ_MINUS_62 0x01 68 #define AFC_FREQ_CENTERED 0x02 69 #define AFC_FREQ_PLUS_62 0x03 70 #define AFC_FREQ_PLUS_125 0x04 71 #define AFC_MAX_STEP (5 * FREQFACTOR) /* no more than 5 MHz */ 72 #endif /* TUNER_AFC */ 73 74 75 #define TTYPE_XXX 0 76 #define TTYPE_NTSC 1 77 #define TTYPE_NTSC_J 2 78 #define TTYPE_PAL 3 79 #define TTYPE_PAL_M 4 80 #define TTYPE_PAL_N 5 81 #define TTYPE_SECAM 6 82 83 #define TSA552x_CB_MSB (0x80) 84 #define TSA552x_CB_CP (1<<6) /* set this for fast tuning */ 85 #define TSA552x_CB_T2 (1<<5) /* test mode - Normally set to 0 */ 86 #define TSA552x_CB_T1 (1<<4) /* test mode - Normally set to 0 */ 87 #define TSA552x_CB_T0 (1<<3) /* test mode - Normally set to 1 */ 88 #define TSA552x_CB_RSA (1<<2) /* 0 for 31.25 khz, 1 for 62.5 kHz */ 89 #define TSA552x_CB_RSB (1<<1) /* 0 for FM 50kHz steps, 1 = Use RSA*/ 90 #define TSA552x_CB_OS (1<<0) /* Set to 0 for normal operation */ 91 92 #define TSA552x_RADIO (TSA552x_CB_MSB | \ 93 TSA552x_CB_T0) 94 95 /* raise the charge pump voltage for fast tuning */ 96 #define TSA552x_FCONTROL (TSA552x_CB_MSB | \ 97 TSA552x_CB_CP | \ 98 TSA552x_CB_T0 | \ 99 TSA552x_CB_RSA | \ 100 TSA552x_CB_RSB) 101 102 /* lower the charge pump voltage for better residual oscillator FM */ 103 #define TSA552x_SCONTROL (TSA552x_CB_MSB | \ 104 TSA552x_CB_T0 | \ 105 TSA552x_CB_RSA | \ 106 TSA552x_CB_RSB) 107 108 /* The control value for the ALPS TSCH5 Tuner */ 109 #define TSCH5_FCONTROL 0x82 110 #define TSCH5_RADIO 0x86 111 112 /* The control value for the ALPS TSBH1 Tuner */ 113 #define TSBH1_FCONTROL 0xce 114 115 116 static void mt2032_set_tv_freq(bktr_ptr_t bktr, unsigned int freq); 117 118 119 static const struct TUNER tuners[] = { 120 /* XXX FIXME: fill in the band-switch crosspoints */ 121 /* NO_TUNER */ 122 { "<no>", /* the 'name' */ 123 TTYPE_XXX, /* input type */ 124 { 0x00, /* control byte for Tuner PLL */ 125 0x00, 126 0x00, 127 0x00 }, 128 { 0x00, 0x00 }, /* band-switch crosspoints */ 129 { 0x00, 0x00, 0x00,0x00} }, /* the band-switch values */ 130 131 /* TEMIC_NTSC */ 132 { "Temic NTSC", /* the 'name' */ 133 TTYPE_NTSC, /* input type */ 134 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 135 TSA552x_SCONTROL, 136 TSA552x_SCONTROL, 137 0x00 }, 138 { 0x00, 0x00}, /* band-switch crosspoints */ 139 { 0x02, 0x04, 0x01, 0x00 } }, /* the band-switch values */ 140 141 /* TEMIC_PAL */ 142 { "Temic PAL", /* the 'name' */ 143 TTYPE_PAL, /* input type */ 144 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 145 TSA552x_SCONTROL, 146 TSA552x_SCONTROL, 147 0x00 }, 148 { 0x00, 0x00 }, /* band-switch crosspoints */ 149 { 0x02, 0x04, 0x01, 0x00 } }, /* the band-switch values */ 150 151 /* TEMIC_SECAM */ 152 { "Temic SECAM", /* the 'name' */ 153 TTYPE_SECAM, /* input type */ 154 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 155 TSA552x_SCONTROL, 156 TSA552x_SCONTROL, 157 0x00 }, 158 { 0x00, 0x00 }, /* band-switch crosspoints */ 159 { 0x02, 0x04, 0x01,0x00 } }, /* the band-switch values */ 160 161 /* PHILIPS_NTSC */ 162 { "Philips NTSC", /* the 'name' */ 163 TTYPE_NTSC, /* input type */ 164 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 165 TSA552x_SCONTROL, 166 TSA552x_SCONTROL, 167 0x00 }, 168 { 0x00, 0x00 }, /* band-switch crosspoints */ 169 { 0xa0, 0x90, 0x30, 0x00 } }, /* the band-switch values */ 170 171 /* PHILIPS_PAL */ 172 { "Philips PAL", /* the 'name' */ 173 TTYPE_PAL, /* input type */ 174 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 175 TSA552x_SCONTROL, 176 TSA552x_SCONTROL, 177 0x00 }, 178 { 0x00, 0x00 }, /* band-switch crosspoints */ 179 { 0xa0, 0x90, 0x30, 0x00 } }, /* the band-switch values */ 180 181 /* PHILIPS_SECAM */ 182 { "Philips SECAM", /* the 'name' */ 183 TTYPE_SECAM, /* input type */ 184 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 185 TSA552x_SCONTROL, 186 TSA552x_SCONTROL, 187 0x00 }, 188 { 0x00, 0x00 }, /* band-switch crosspoints */ 189 { 0xa7, 0x97, 0x37, 0x00 } }, /* the band-switch values */ 190 191 /* TEMIC_PAL I */ 192 { "Temic PAL I", /* the 'name' */ 193 TTYPE_PAL, /* input type */ 194 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 195 TSA552x_SCONTROL, 196 TSA552x_SCONTROL, 197 0x00 }, 198 { 0x00, 0x00 }, /* band-switch crosspoints */ 199 { 0x02, 0x04, 0x01,0x00 } }, /* the band-switch values */ 200 201 /* PHILIPS_PALI */ 202 { "Philips PAL I", /* the 'name' */ 203 TTYPE_PAL, /* input type */ 204 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 205 TSA552x_SCONTROL, 206 TSA552x_SCONTROL, 207 0x00 }, 208 { 0x00, 0x00 }, /* band-switch crosspoints */ 209 { 0xa0, 0x90, 0x30,0x00 } }, /* the band-switch values */ 210 211 /* PHILIPS_FR1236_NTSC */ 212 { "Philips FR1236 NTSC FM", /* the 'name' */ 213 TTYPE_NTSC, /* input type */ 214 { TSA552x_FCONTROL, /* control byte for Tuner PLL */ 215 TSA552x_FCONTROL, 216 TSA552x_FCONTROL, 217 TSA552x_RADIO }, 218 { 0x00, 0x00 }, /* band-switch crosspoints */ 219 { 0xa0, 0x90, 0x30,0xa4 } }, /* the band-switch values */ 220 221 /* PHILIPS_FR1216_PAL */ 222 { "Philips FR1216 PAL FM" , /* the 'name' */ 223 TTYPE_PAL, /* input type */ 224 { TSA552x_FCONTROL, /* control byte for Tuner PLL */ 225 TSA552x_FCONTROL, 226 TSA552x_FCONTROL, 227 TSA552x_RADIO }, 228 { 0x00, 0x00 }, /* band-switch crosspoints */ 229 { 0xa0, 0x90, 0x30, 0xa4 } }, /* the band-switch values */ 230 231 /* PHILIPS_FR1236_SECAM */ 232 { "Philips FR1236 SECAM FM", /* the 'name' */ 233 TTYPE_SECAM, /* input type */ 234 { TSA552x_FCONTROL, /* control byte for Tuner PLL */ 235 TSA552x_FCONTROL, 236 TSA552x_FCONTROL, 237 TSA552x_RADIO }, 238 { 0x00, 0x00 }, /* band-switch crosspoints */ 239 { 0xa7, 0x97, 0x37, 0xa4 } }, /* the band-switch values */ 240 241 /* ALPS TSCH5 NTSC */ 242 { "ALPS TSCH5 NTSC FM", /* the 'name' */ 243 TTYPE_NTSC, /* input type */ 244 { TSCH5_FCONTROL, /* control byte for Tuner PLL */ 245 TSCH5_FCONTROL, 246 TSCH5_FCONTROL, 247 TSCH5_RADIO }, 248 { 0x00, 0x00 }, /* band-switch crosspoints */ 249 { 0x14, 0x12, 0x11, 0x04 } }, /* the band-switch values */ 250 251 /* ALPS TSBH1 NTSC */ 252 { "ALPS TSBH1 NTSC", /* the 'name' */ 253 TTYPE_NTSC, /* input type */ 254 { TSBH1_FCONTROL, /* control byte for Tuner PLL */ 255 TSBH1_FCONTROL, 256 TSBH1_FCONTROL, 257 0x00 }, 258 { 0x00, 0x00 }, /* band-switch crosspoints */ 259 { 0x01, 0x02, 0x08, 0x00 } }, /* the band-switch values */ 260 261 /* MT2032 Microtune */ 262 { "MT2032", /* the 'name' */ 263 TTYPE_PAL, /* input type */ 264 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 265 TSA552x_SCONTROL, 266 TSA552x_SCONTROL, 267 0x00 }, 268 { 0x00, 0x00 }, /* band-switch crosspoints */ 269 { 0xa0, 0x90, 0x30, 0x00 } }, /* the band-switch values */ 270 271 /* LG TPI8PSB12P PAL */ 272 { "LG TPI8PSB12P PAL", /* the 'name' */ 273 TTYPE_PAL, /* input type */ 274 { TSA552x_SCONTROL, /* control byte for Tuner PLL */ 275 TSA552x_SCONTROL, 276 TSA552x_SCONTROL, 277 0x00 }, 278 { 0x00, 0x00 }, /* band-switch crosspoints */ 279 { 0xa0, 0x90, 0x30, 0x8e } }, /* the band-switch values */ 280 }; 281 282 283 /* scaling factor for frequencies expressed as ints */ 284 #define FREQFACTOR 16 285 286 /* 287 * Format: 288 * entry 0: MAX legal channel 289 * entry 1: IF frequency 290 * expressed as fi{mHz} * 16, 291 * eg 45.75mHz == 45.75 * 16 = 732 292 * entry 2: [place holder/future] 293 * entry 3: base of channel record 0 294 * entry 3 + (x*3): base of channel record 'x' 295 * entry LAST: NULL channel entry marking end of records 296 * 297 * Record: 298 * int 0: base channel 299 * int 1: frequency of base channel, 300 * expressed as fb{mHz} * 16, 301 * int 2: offset frequency between channels, 302 * expressed as fo{mHz} * 16, 303 */ 304 305 /* 306 * North American Broadcast Channels: 307 * 308 * 2: 55.25 mHz - 4: 67.25 mHz 309 * 5: 77.25 mHz - 6: 83.25 mHz 310 * 7: 175.25 mHz - 13: 211.25 mHz 311 * 14: 471.25 mHz - 83: 885.25 mHz 312 * 313 * IF freq: 45.75 mHz 314 */ 315 #define OFFSET 6.00 316 static int nabcst[] = { 317 83, (int)( 45.75 * FREQFACTOR), 0, 318 14, (int)(471.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 319 7, (int)(175.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 320 5, (int)( 77.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 321 2, (int)( 55.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 322 0 323 }; 324 #undef OFFSET 325 326 /* 327 * North American Cable Channels, IRC: 328 * 329 * 2: 55.25 mHz - 4: 67.25 mHz 330 * 5: 77.25 mHz - 6: 83.25 mHz 331 * 7: 175.25 mHz - 13: 211.25 mHz 332 * 14: 121.25 mHz - 22: 169.25 mHz 333 * 23: 217.25 mHz - 94: 643.25 mHz 334 * 95: 91.25 mHz - 99: 115.25 mHz 335 * 336 * IF freq: 45.75 mHz 337 */ 338 #define OFFSET 6.00 339 static int irccable[] = { 340 116, (int)( 45.75 * FREQFACTOR), 0, 341 100, (int)(649.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 342 95, (int)( 91.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 343 23, (int)(217.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 344 14, (int)(121.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 345 7, (int)(175.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 346 5, (int)( 77.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 347 2, (int)( 55.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 348 0 349 }; 350 #undef OFFSET 351 352 /* 353 * North American Cable Channels, HRC: 354 * 355 * 2: 54 mHz - 4: 66 mHz 356 * 5: 78 mHz - 6: 84 mHz 357 * 7: 174 mHz - 13: 210 mHz 358 * 14: 120 mHz - 22: 168 mHz 359 * 23: 216 mHz - 94: 642 mHz 360 * 95: 90 mHz - 99: 114 mHz 361 * 362 * IF freq: 45.75 mHz 363 */ 364 #define OFFSET 6.00 365 static int hrccable[] = { 366 116, (int)( 45.75 * FREQFACTOR), 0, 367 100, (int)(648.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 368 95, (int)( 90.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 369 23, (int)(216.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 370 14, (int)(120.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 371 7, (int)(174.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 372 5, (int)( 78.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 373 2, (int)( 54.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 374 0 375 }; 376 #undef OFFSET 377 378 /* 379 * Western European broadcast channels: 380 * 381 * (there are others that appear to vary between countries - rmt) 382 * 383 * here's the table Philips provides: 384 * caution, some of the offsets don't compute... 385 * 386 * 1 4525 700 N21 387 * 388 * 2 4825 700 E2 389 * 3 5525 700 E3 390 * 4 6225 700 E4 391 * 392 * 5 17525 700 E5 393 * 6 18225 700 E6 394 * 7 18925 700 E7 395 * 8 19625 700 E8 396 * 9 20325 700 E9 397 * 10 21025 700 E10 398 * 11 21725 700 E11 399 * 12 22425 700 E12 400 * 401 * 13 5375 700 ITA 402 * 14 6225 700 ITB 403 * 404 * 15 8225 700 ITC 405 * 406 * 16 17525 700 ITD 407 * 17 18325 700 ITE 408 * 409 * 18 19225 700 ITF 410 * 19 20125 700 ITG 411 * 20 21025 700 ITH 412 * 413 * 21 47125 800 E21 414 * 22 47925 800 E22 415 * 23 48725 800 E23 416 * 24 49525 800 E24 417 * 25 50325 800 E25 418 * 26 51125 800 E26 419 * 27 51925 800 E27 420 * 28 52725 800 E28 421 * 29 53525 800 E29 422 * 30 54325 800 E30 423 * 31 55125 800 E31 424 * 32 55925 800 E32 425 * 33 56725 800 E33 426 * 34 57525 800 E34 427 * 35 58325 800 E35 428 * 36 59125 800 E36 429 * 37 59925 800 E37 430 * 38 60725 800 E38 431 * 39 61525 800 E39 432 * 40 62325 800 E40 433 * 41 63125 800 E41 434 * 42 63925 800 E42 435 * 43 64725 800 E43 436 * 44 65525 800 E44 437 * 45 66325 800 E45 438 * 46 67125 800 E46 439 * 47 67925 800 E47 440 * 48 68725 800 E48 441 * 49 69525 800 E49 442 * 50 70325 800 E50 443 * 51 71125 800 E51 444 * 52 71925 800 E52 445 * 53 72725 800 E53 446 * 54 73525 800 E54 447 * 55 74325 800 E55 448 * 56 75125 800 E56 449 * 57 75925 800 E57 450 * 58 76725 800 E58 451 * 59 77525 800 E59 452 * 60 78325 800 E60 453 * 61 79125 800 E61 454 * 62 79925 800 E62 455 * 63 80725 800 E63 456 * 64 81525 800 E64 457 * 65 82325 800 E65 458 * 66 83125 800 E66 459 * 67 83925 800 E67 460 * 68 84725 800 E68 461 * 69 85525 800 E69 462 * 463 * 70 4575 800 IA 464 * 71 5375 800 IB 465 * 72 6175 800 IC 466 * 467 * 74 6925 700 S01 468 * 75 7625 700 S02 469 * 76 8325 700 S03 470 * 471 * 80 10525 700 S1 472 * 81 11225 700 S2 473 * 82 11925 700 S3 474 * 83 12625 700 S4 475 * 84 13325 700 S5 476 * 85 14025 700 S6 477 * 86 14725 700 S7 478 * 87 15425 700 S8 479 * 88 16125 700 S9 480 * 89 16825 700 S10 481 * 90 23125 700 S11 482 * 91 23825 700 S12 483 * 92 24525 700 S13 484 * 93 25225 700 S14 485 * 94 25925 700 S15 486 * 95 26625 700 S16 487 * 96 27325 700 S17 488 * 97 28025 700 S18 489 * 98 28725 700 S19 490 * 99 29425 700 S20 491 * 492 * 493 * Channels S21 - S41 are taken from 494 * http://gemma.apple.com:80/dev/technotes/tn/tn1012.html 495 * 496 * 100 30325 800 S21 497 * 101 31125 800 S22 498 * 102 31925 800 S23 499 * 103 32725 800 S24 500 * 104 33525 800 S25 501 * 105 34325 800 S26 502 * 106 35125 800 S27 503 * 107 35925 800 S28 504 * 108 36725 800 S29 505 * 109 37525 800 S30 506 * 110 38325 800 S31 507 * 111 39125 800 S32 508 * 112 39925 800 S33 509 * 113 40725 800 S34 510 * 114 41525 800 S35 511 * 115 42325 800 S36 512 * 116 43125 800 S37 513 * 117 43925 800 S38 514 * 118 44725 800 S39 515 * 119 45525 800 S40 516 * 120 46325 800 S41 517 * 518 * 121 3890 000 IFFREQ 519 * 520 */ 521 static int weurope[] = { 522 121, (int)( 38.90 * FREQFACTOR), 0, 523 100, (int)(303.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 524 90, (int)(231.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR), 525 80, (int)(105.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR), 526 74, (int)( 69.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR), 527 21, (int)(471.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 528 17, (int)(183.25 * FREQFACTOR), (int)(9.00 * FREQFACTOR), 529 16, (int)(175.25 * FREQFACTOR), (int)(9.00 * FREQFACTOR), 530 15, (int)(82.25 * FREQFACTOR), (int)(8.50 * FREQFACTOR), 531 13, (int)(53.75 * FREQFACTOR), (int)(8.50 * FREQFACTOR), 532 5, (int)(175.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR), 533 2, (int)(48.25 * FREQFACTOR), (int)(7.00 * FREQFACTOR), 534 0 535 }; 536 537 /* 538 * Japanese Broadcast Channels: 539 * 540 * 1: 91.25MHz - 3: 103.25MHz 541 * 4: 171.25MHz - 7: 189.25MHz 542 * 8: 193.25MHz - 12: 217.25MHz (VHF) 543 * 13: 471.25MHz - 62: 765.25MHz (UHF) 544 * 545 * IF freq: 45.75 mHz 546 * OR 547 * IF freq: 58.75 mHz 548 */ 549 #define OFFSET 6.00 550 #define IF_FREQ 45.75 551 static int jpnbcst[] = { 552 62, (int)(IF_FREQ * FREQFACTOR), 0, 553 13, (int)(471.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 554 8, (int)(193.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 555 4, (int)(171.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 556 1, (int)( 91.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 557 0 558 }; 559 #undef IF_FREQ 560 #undef OFFSET 561 562 /* 563 * Japanese Cable Channels: 564 * 565 * 1: 91.25MHz - 3: 103.25MHz 566 * 4: 171.25MHz - 7: 189.25MHz 567 * 8: 193.25MHz - 12: 217.25MHz 568 * 13: 109.25MHz - 21: 157.25MHz 569 * 22: 165.25MHz 570 * 23: 223.25MHz - 63: 463.25MHz 571 * 572 * IF freq: 45.75 mHz 573 */ 574 #define OFFSET 6.00 575 #define IF_FREQ 45.75 576 static int jpncable[] = { 577 63, (int)(IF_FREQ * FREQFACTOR), 0, 578 23, (int)(223.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 579 22, (int)(165.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 580 13, (int)(109.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 581 8, (int)(193.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 582 4, (int)(171.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 583 1, (int)( 91.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 584 0 585 }; 586 #undef IF_FREQ 587 #undef OFFSET 588 589 /* 590 * xUSSR Broadcast Channels: 591 * 592 * 1: 49.75MHz - 2: 59.25MHz 593 * 3: 77.25MHz - 5: 93.25MHz 594 * 6: 175.25MHz - 12: 223.25MHz 595 * 13-20 - not exist 596 * 21: 471.25MHz - 34: 575.25MHz 597 * 35: 583.25MHz - 69: 855.25MHz 598 * 599 * Cable channels 600 * 601 * 70: 111.25MHz - 77: 167.25MHz 602 * 78: 231.25MHz -107: 463.25MHz 603 * 604 * IF freq: 38.90 MHz 605 */ 606 #define IF_FREQ 38.90 607 static int xussr[] = { 608 107, (int)(IF_FREQ * FREQFACTOR), 0, 609 78, (int)(231.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 610 70, (int)(111.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 611 35, (int)(583.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 612 21, (int)(471.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 613 6, (int)(175.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 614 3, (int)( 77.25 * FREQFACTOR), (int)(8.00 * FREQFACTOR), 615 1, (int)( 49.75 * FREQFACTOR), (int)(9.50 * FREQFACTOR), 616 0 617 }; 618 #undef IF_FREQ 619 620 /* 621 * Australian broadcast channels 622 */ 623 #define OFFSET 7.00 624 #define IF_FREQ 38.90 625 static int australia[] = { 626 83, (int)(IF_FREQ * FREQFACTOR), 0, 627 28, (int)(527.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 628 10, (int)(209.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 629 6, (int)(175.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 630 4, (int)( 95.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 631 3, (int)( 86.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 632 1, (int)( 57.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), 633 0 634 }; 635 #undef OFFSET 636 #undef IF_FREQ 637 638 /* 639 * France broadcast channels 640 */ 641 #define OFFSET 8.00 642 #define IF_FREQ 38.90 643 static int france[] = { 644 69, (int)(IF_FREQ * FREQFACTOR), 0, 645 21, (int)(471.25 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), /* 21 -> 69 */ 646 5, (int)(176.00 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), /* 5 -> 10 */ 647 4, (int)( 63.75 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), /* 4 */ 648 3, (int)( 60.50 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), /* 3 */ 649 1, (int)( 47.75 * FREQFACTOR), (int)(OFFSET * FREQFACTOR), /* 1 2 */ 650 0 651 }; 652 #undef OFFSET 653 #undef IF_FREQ 654 655 static struct { 656 int *ptr; 657 char name[BT848_MAX_CHNLSET_NAME_LEN]; 658 } freqTable[] = { 659 {NULL, ""}, 660 {nabcst, "nabcst"}, 661 {irccable, "cableirc"}, 662 {hrccable, "cablehrc"}, 663 {weurope, "weurope"}, 664 {jpnbcst, "jpnbcst"}, 665 {jpncable, "jpncable"}, 666 {xussr, "xussr"}, 667 {australia, "australia"}, 668 {france, "france"}, 669 670 }; 671 672 #define TBL_CHNL freqTable[ bktr->tuner.chnlset ].ptr[ x ] 673 #define TBL_BASE_FREQ freqTable[ bktr->tuner.chnlset ].ptr[ x + 1 ] 674 #define TBL_OFFSET freqTable[ bktr->tuner.chnlset ].ptr[ x + 2 ] 675 static int 676 frequency_lookup( bktr_ptr_t bktr, int channel ) 677 { 678 int x; 679 680 /* check for "> MAX channel" */ 681 x = 0; 682 if ( channel > TBL_CHNL ) 683 return( -1 ); 684 685 /* search the table for data */ 686 for ( x = 3; TBL_CHNL; x += 3 ) { 687 if ( channel >= TBL_CHNL ) { 688 return( TBL_BASE_FREQ + 689 ((channel - TBL_CHNL) * TBL_OFFSET) ); 690 } 691 } 692 693 /* not found, must be below the MIN channel */ 694 return( -1 ); 695 } 696 #undef TBL_OFFSET 697 #undef TBL_BASE_FREQ 698 #undef TBL_CHNL 699 700 701 #define TBL_IF (bktr->format_params == BT848_IFORM_F_NTSCJ || \ 702 bktr->format_params == BT848_IFORM_F_NTSCM ? \ 703 nabcst[1] : weurope[1]) 704 705 706 /* Initialise the tuner structures in the bktr_softc */ 707 /* This is needed as the tuner details are no longer globally declared */ 708 709 void select_tuner( bktr_ptr_t bktr, int tuner_type ) { 710 if (tuner_type < Bt848_MAX_TUNER) { 711 bktr->card.tuner = &tuners[ tuner_type ]; 712 } else { 713 bktr->card.tuner = NULL; 714 } 715 } 716 717 /* 718 * Tuner Notes: 719 * Programming the tuner properly is quite complicated. 720 * Here are some notes, based on a FM1246 data sheet for a PAL-I tuner. 721 * The tuner (front end) covers 45.75 Mhz - 855.25 Mhz and an FM band of 722 * 87.5 Mhz to 108.0 Mhz. 723 * 724 * RF and IF. RF = radio frequencies, it is the transmitted signal. 725 * IF is the Intermediate Frequency (the offset from the base 726 * signal where the video, color, audio and NICAM signals are. 727 * 728 * Eg, Picture at 38.9 Mhz, Colour at 34.47 MHz, sound at 32.9 MHz 729 * NICAM at 32.348 Mhz. 730 * Strangely enough, there is an IF (intermediate frequency) for 731 * FM Radio which is 10.7 Mhz. 732 * 733 * The tuner also works in Bands. Philips bands are 734 * FM radio band 87.50 to 108.00 MHz 735 * Low band 45.75 to 170.00 MHz 736 * Mid band 170.00 to 450.00 MHz 737 * High band 450.00 to 855.25 MHz 738 * 739 * 740 * Now we need to set the PLL on the tuner to the required freuqncy. 741 * It has a programmable divisor. 742 * For TV we want 743 * N = 16 (freq RF(pc) + freq IF(pc)) pc is picture carrier and RF and IF 744 * are in MHz. 745 746 * For RADIO we want a different equation. 747 * freq IF is 10.70 MHz (so the data sheet tells me) 748 * N = (freq RF + freq IF) / step size 749 * The step size must be set to 50 khz (so the data sheet tells me) 750 * (note this is 50 kHz, the other things are in MHz) 751 * so we end up with N = 20x(freq RF + 10.7) 752 * 753 */ 754 755 #define LOW_BAND 0 756 #define MID_BAND 1 757 #define HIGH_BAND 2 758 #define FM_RADIO_BAND 3 759 760 761 /* Check if these are correct for other than Philips PAL */ 762 #define STATUSBIT_COLD 0x80 763 #define STATUSBIT_LOCK 0x40 764 #define STATUSBIT_TV 0x20 765 #define STATUSBIT_STEREO 0x10 /* valid if FM (aka not TV) */ 766 #define STATUSBIT_ADC 0x07 767 768 /* 769 * set the frequency of the tuner 770 * If 'type' is TV_FREQUENCY, the frequency is freq MHz*16 771 * If 'type' is FM_RADIO_FREQUENCY, the frequency is freq MHz * 100 772 * (note *16 gives is 4 bits of fraction, eg steps of nnn.0625) 773 * 774 */ 775 int 776 tv_freq( bktr_ptr_t bktr, int frequency, int type ) 777 { 778 const struct TUNER* tuner; 779 u_char addr; 780 u_char control; 781 u_char band; 782 int N; 783 int band_select = 0; 784 #if defined( TEST_TUNER_AFC ) 785 int oldFrequency, afcDelta; 786 #endif 787 788 tuner = bktr->card.tuner; 789 if ( tuner == NULL ) 790 return( -1 ); 791 792 if (tuner == &tuners[TUNER_MT2032]) { 793 mt2032_set_tv_freq(bktr, frequency); 794 return 0; 795 } 796 if (type == TV_FREQUENCY) { 797 /* 798 * select the band based on frequency 799 * XXX FIXME: get the cross-over points from the tuner struct 800 */ 801 if ( frequency < (160 * FREQFACTOR ) ) 802 band_select = LOW_BAND; 803 else if ( frequency < (454 * FREQFACTOR ) ) 804 band_select = MID_BAND; 805 else 806 band_select = HIGH_BAND; 807 808 #if defined( TEST_TUNER_AFC ) 809 if ( bktr->tuner.afc ) 810 frequency -= 4; 811 #endif 812 /* 813 * N = 16 * { fRF(pc) + fIF(pc) } 814 * or N = 16* fRF(pc) + 16*fIF(pc) } 815 * where: 816 * pc is picture carrier, fRF & fIF are in MHz 817 * 818 * fortunatly, frequency is passed in as MHz * 16 819 * and the TBL_IF frequency is also stored in MHz * 16 820 */ 821 N = frequency + TBL_IF; 822 823 /* set the address of the PLL */ 824 addr = bktr->card.tuner_pllAddr; 825 control = tuner->pllControl[ band_select ]; 826 band = tuner->bandAddrs[ band_select ]; 827 828 if(!(band && control)) /* Don't try to set un- */ 829 return(-1); /* supported modes. */ 830 831 if ( frequency > bktr->tuner.frequency ) { 832 i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff ); 833 i2cWrite( bktr, addr, control, band ); 834 } 835 else { 836 i2cWrite( bktr, addr, control, band ); 837 i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff ); 838 } 839 840 #if defined( TUNER_AFC ) 841 if ( bktr->tuner.afc == TRUE ) { 842 #if defined( TEST_TUNER_AFC ) 843 oldFrequency = frequency; 844 #endif 845 if ( (N = do_afc( bktr, addr, N )) < 0 ) { 846 /* AFC failed, restore requested frequency */ 847 N = frequency + TBL_IF; 848 #if defined( TEST_TUNER_AFC ) 849 kprintf("%s: do_afc: failed to lock\n", 850 bktr_name(bktr)); 851 #endif 852 i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff ); 853 } 854 else 855 frequency = N - TBL_IF; 856 #if defined( TEST_TUNER_AFC ) 857 kprintf("%s: do_afc: returned freq %d (%d %% %d)\n", bktr_name(bktr), frequency, frequency / 16, frequency % 16); 858 afcDelta = frequency - oldFrequency; 859 kprintf("%s: changed by: %d clicks (%d mod %d)\n", bktr_name(bktr), afcDelta, afcDelta / 16, afcDelta % 16); 860 #endif 861 } 862 #endif /* TUNER_AFC */ 863 864 bktr->tuner.frequency = frequency; 865 } 866 867 if ( type == FM_RADIO_FREQUENCY ) { 868 band_select = FM_RADIO_BAND; 869 870 /* 871 * N = { fRF(pc) + fIF(pc) }/step_size 872 * The step size is 50kHz for FM radio. 873 * (eg after 102.35MHz comes 102.40 MHz) 874 * fIF is 10.7 MHz (as detailed in the specs) 875 * 876 * frequency is passed in as MHz * 100 877 * 878 * So, we have N = (frequency/100 + 10.70) /(50/1000) 879 */ 880 N = (frequency + 1070)/5; 881 882 /* set the address of the PLL */ 883 addr = bktr->card.tuner_pllAddr; 884 control = tuner->pllControl[ band_select ]; 885 band = tuner->bandAddrs[ band_select ]; 886 887 if(!(band && control)) /* Don't try to set un- */ 888 return(-1); /* supported modes. */ 889 890 band |= bktr->tuner.radio_mode; /* tuner.radio_mode is set in 891 * the ioctls RADIO_SETMODE 892 * and RADIO_GETMODE */ 893 894 i2cWrite( bktr, addr, control, band ); 895 i2cWrite( bktr, addr, (N>>8) & 0x7f, N & 0xff ); 896 897 bktr->tuner.frequency = (N * 5) - 1070; 898 899 900 } 901 902 903 return( 0 ); 904 } 905 906 907 908 #if defined( TUNER_AFC ) 909 /* 910 * 911 */ 912 int 913 do_afc( bktr_ptr_t bktr, int addr, int frequency ) 914 { 915 int step; 916 int status; 917 int origFrequency; 918 919 origFrequency = frequency; 920 921 /* wait for first setting to take effect */ 922 tsleep( BKTR_SLEEP, 0, "tuning", hz/8 ); 923 924 if ( (status = i2cRead( bktr, addr + 1 )) < 0 ) 925 return( -1 ); 926 927 #if defined( TEST_TUNER_AFC ) 928 kprintf( "%s: Original freq: %d, status: 0x%02x\n", bktr_name(bktr), frequency, status ); 929 #endif 930 for ( step = 0; step < AFC_MAX_STEP; ++step ) { 931 if ( (status = i2cRead( bktr, addr + 1 )) < 0 ) 932 goto fubar; 933 if ( !(status & 0x40) ) { 934 #if defined( TEST_TUNER_AFC ) 935 kprintf( "%s: no lock!\n", bktr_name(bktr) ); 936 #endif 937 goto fubar; 938 } 939 940 switch( status & AFC_BITS ) { 941 case AFC_FREQ_CENTERED: 942 #if defined( TEST_TUNER_AFC ) 943 kprintf( "%s: Centered, freq: %d, status: 0x%02x\n", bktr_name(bktr), frequency, status ); 944 #endif 945 return( frequency ); 946 947 case AFC_FREQ_MINUS_125: 948 case AFC_FREQ_MINUS_62: 949 #if defined( TEST_TUNER_AFC ) 950 kprintf( "%s: Low, freq: %d, status: 0x%02x\n", bktr_name(bktr), frequency, status ); 951 #endif 952 --frequency; 953 break; 954 955 case AFC_FREQ_PLUS_62: 956 case AFC_FREQ_PLUS_125: 957 #if defined( TEST_TUNER_AFC ) 958 kprintf( "%s: Hi, freq: %d, status: 0x%02x\n", bktr_name(bktr), frequency, status ); 959 #endif 960 ++frequency; 961 break; 962 } 963 964 i2cWrite( bktr, addr, 965 (frequency>>8) & 0x7f, frequency & 0xff ); 966 DELAY( AFC_DELAY ); 967 } 968 969 fubar: 970 i2cWrite( bktr, addr, 971 (origFrequency>>8) & 0x7f, origFrequency & 0xff ); 972 973 return( -1 ); 974 } 975 #endif /* TUNER_AFC */ 976 #undef TBL_IF 977 978 979 /* 980 * Get the Tuner status and signal strength 981 */ 982 int get_tuner_status( bktr_ptr_t bktr ) { 983 if (bktr->card.tuner == &tuners[TUNER_MT2032]) 984 return 0; 985 return i2cRead( bktr, bktr->card.tuner_pllAddr + 1 ); 986 } 987 988 /* 989 * set the channel of the tuner 990 */ 991 int 992 tv_channel( bktr_ptr_t bktr, int channel ) 993 { 994 int frequency; 995 996 /* calculate the frequency according to tuner type */ 997 if ( (frequency = frequency_lookup( bktr, channel )) < 0 ) 998 return( -1 ); 999 1000 /* set the new frequency */ 1001 if ( tv_freq( bktr, frequency, TV_FREQUENCY ) < 0 ) 1002 return( -1 ); 1003 1004 /* OK to update records */ 1005 return( (bktr->tuner.channel = channel) ); 1006 } 1007 1008 /* 1009 * get channelset name 1010 */ 1011 int 1012 tuner_getchnlset(struct bktr_chnlset *chnlset) 1013 { 1014 if (( chnlset->index < CHNLSET_MIN ) || 1015 ( chnlset->index > CHNLSET_MAX )) 1016 return( EINVAL ); 1017 1018 memcpy(&chnlset->name, &freqTable[chnlset->index].name, 1019 BT848_MAX_CHNLSET_NAME_LEN); 1020 1021 chnlset->max_channel=freqTable[chnlset->index].ptr[0]; 1022 return( 0 ); 1023 } 1024 1025 1026 1027 1028 #define TDA9887_ADDR 0x86 1029 1030 static int 1031 TDA9887_init(bktr_ptr_t bktr, int output2_enable) 1032 { 1033 u_char addr = TDA9887_ADDR; 1034 1035 i2cWrite(bktr, addr, 0, output2_enable ? 0x50 : 0xd0); 1036 i2cWrite(bktr, addr, 1, 0x6e); /* takeover point / de-emphasis */ 1037 1038 /* PAL BG: 0x09 PAL I: 0x0a NTSC: 0x04 */ 1039 #ifdef MT2032_NTSC 1040 i2cWrite(bktr, addr, 2, 0x04); 1041 #else 1042 i2cWrite(bktr, addr, 2, 0x09); 1043 #endif 1044 return 0; 1045 } 1046 1047 1048 1049 #define MT2032_OPTIMIZE_VCO 1 1050 1051 /* holds the value of XOGC register after init */ 1052 static int MT2032_XOGC = 4; 1053 1054 /* card.tuner_pllAddr not set during init */ 1055 #define MT2032_ADDR 0xc0 1056 1057 #ifndef MT2032_ADDR 1058 #define MT2032_ADDR (bktr->card.tuner_pllAddr) 1059 #endif 1060 1061 static int 1062 _MT2032_GetRegister(bktr_ptr_t bktr, u_char regNum) 1063 { 1064 int ch; 1065 1066 if (i2cWrite(bktr, MT2032_ADDR, regNum, -1) == -1) { 1067 if (bootverbose) 1068 kprintf("%s: MT2032 write failed (i2c addr %#x)\n", 1069 bktr_name(bktr), MT2032_ADDR); 1070 return -1; 1071 } 1072 if ((ch = i2cRead(bktr, MT2032_ADDR + 1)) == -1) { 1073 if (bootverbose) 1074 kprintf("%s: MT2032 get register %d failed\n", 1075 bktr_name(bktr), regNum); 1076 return -1; 1077 } 1078 return ch; 1079 } 1080 1081 static void 1082 _MT2032_SetRegister(bktr_ptr_t bktr, u_char regNum, u_char data) 1083 { 1084 i2cWrite(bktr, MT2032_ADDR, regNum, data); 1085 } 1086 1087 #define MT2032_GetRegister(r) _MT2032_GetRegister(bktr,r) 1088 #define MT2032_SetRegister(r,d) _MT2032_SetRegister(bktr,r,d) 1089 1090 1091 int 1092 mt2032_init(bktr_ptr_t bktr) 1093 { 1094 u_char rdbuf[22]; 1095 int xogc, xok = 0; 1096 int i; 1097 int x; 1098 1099 TDA9887_init(bktr, 0); 1100 1101 for (i = 0; i < 21; i++) { 1102 if ((x = MT2032_GetRegister(i)) == -1) 1103 break; 1104 rdbuf[i] = x; 1105 } 1106 if (i < 21) 1107 return -1; 1108 1109 kprintf("%s: MT2032: Companycode=%02x%02x Part=%02x Revision=%02x\n", 1110 bktr_name(bktr), 1111 rdbuf[0x11], rdbuf[0x12], rdbuf[0x13], rdbuf[0x14]); 1112 if (rdbuf[0x13] != 4) { 1113 kprintf("%s: MT2032 not found or unknown type\n", bktr_name(bktr)); 1114 return -1; 1115 } 1116 1117 /* Initialize Registers per spec. */ 1118 MT2032_SetRegister(2, 0xff); 1119 MT2032_SetRegister(3, 0x0f); 1120 MT2032_SetRegister(4, 0x1f); 1121 MT2032_SetRegister(6, 0xe4); 1122 MT2032_SetRegister(7, 0x8f); 1123 MT2032_SetRegister(8, 0xc3); 1124 MT2032_SetRegister(9, 0x4e); 1125 MT2032_SetRegister(10, 0xec); 1126 MT2032_SetRegister(13, 0x32); 1127 1128 /* Adjust XOGC (register 7), wait for XOK */ 1129 xogc = 7; 1130 do { 1131 DELAY(10000); 1132 xok = MT2032_GetRegister(0x0e) & 0x01; 1133 if (xok == 1) { 1134 break; 1135 } 1136 xogc--; 1137 if (xogc == 3) { 1138 xogc = 4; /* min. 4 per spec */ 1139 break; 1140 } 1141 MT2032_SetRegister(7, 0x88 + xogc); 1142 } while (xok != 1); 1143 1144 TDA9887_init(bktr, 1); 1145 1146 MT2032_XOGC = xogc; 1147 1148 return 0; 1149 } 1150 1151 static int 1152 MT2032_SpurCheck(int f1, int f2, int spectrum_from, int spectrum_to) 1153 { 1154 int n1 = 1, n2, f; 1155 1156 f1 = f1 / 1000; /* scale to kHz to avoid 32bit overflows */ 1157 f2 = f2 / 1000; 1158 spectrum_from /= 1000; 1159 spectrum_to /= 1000; 1160 1161 do { 1162 n2 = -n1; 1163 f = n1 * (f1 - f2); 1164 do { 1165 n2--; 1166 f = f - f2; 1167 if ((f > spectrum_from) && (f < spectrum_to)) { 1168 return 1; 1169 } 1170 } while ((f > (f2 - spectrum_to)) || (n2 > -5)); 1171 n1++; 1172 } while (n1 < 5); 1173 1174 return 0; 1175 } 1176 1177 static int 1178 MT2032_ComputeFreq( 1179 int rfin, 1180 int if1, 1181 int if2, 1182 int spectrum_from, 1183 int spectrum_to, 1184 unsigned char *buf, 1185 int *ret_sel, 1186 int xogc 1187 ) 1188 { /* all in Hz */ 1189 int fref, lo1, lo1n, lo1a, s, sel; 1190 int lo1freq, desired_lo1, desired_lo2, lo2, lo2n, lo2a, 1191 lo2num; 1192 int nLO1adjust; 1193 1194 fref = 5250 * 1000; /* 5.25MHz */ 1195 1196 /* per spec 2.3.1 */ 1197 desired_lo1 = rfin + if1; 1198 lo1 = (2 * (desired_lo1 / 1000) + (fref / 1000)) / (2 * fref / 1000); 1199 lo1freq = lo1 * fref; 1200 desired_lo2 = lo1freq - rfin - if2; 1201 1202 /* per spec 2.3.2 */ 1203 for (nLO1adjust = 1; nLO1adjust < 3; nLO1adjust++) { 1204 if (!MT2032_SpurCheck(lo1freq, desired_lo2, spectrum_from, spectrum_to)) { 1205 break; 1206 } 1207 if (lo1freq < desired_lo1) { 1208 lo1 += nLO1adjust; 1209 } else { 1210 lo1 -= nLO1adjust; 1211 } 1212 1213 lo1freq = lo1 * fref; 1214 desired_lo2 = lo1freq - rfin - if2; 1215 } 1216 1217 /* per spec 2.3.3 */ 1218 s = lo1freq / 1000 / 1000; 1219 1220 if (MT2032_OPTIMIZE_VCO) { 1221 if (s > 1890) { 1222 sel = 0; 1223 } else if (s > 1720) { 1224 sel = 1; 1225 } else if (s > 1530) { 1226 sel = 2; 1227 } else if (s > 1370) { 1228 sel = 3; 1229 } else { 1230 sel = 4;/* >1090 */ 1231 } 1232 } else { 1233 if (s > 1790) { 1234 sel = 0;/* <1958 */ 1235 } else if (s > 1617) { 1236 sel = 1; 1237 } else if (s > 1449) { 1238 sel = 2; 1239 } else if (s > 1291) { 1240 sel = 3; 1241 } else { 1242 sel = 4;/* >1090 */ 1243 } 1244 } 1245 1246 *ret_sel = sel; 1247 1248 /* per spec 2.3.4 */ 1249 lo1n = lo1 / 8; 1250 lo1a = lo1 - (lo1n * 8); 1251 lo2 = desired_lo2 / fref; 1252 lo2n = lo2 / 8; 1253 lo2a = lo2 - (lo2n * 8); 1254 /* scale to fit in 32bit arith */ 1255 lo2num = ((desired_lo2 / 1000) % (fref / 1000)) * 3780 / (fref / 1000); 1256 1257 if (lo1a < 0 || lo1a > 7 || lo1n < 17 || lo1n > 48 || lo2a < 0 || 1258 lo2a > 7 || lo2n < 17 || lo2n > 30) { 1259 kprintf("MT2032: parameter out of range\n"); 1260 return -1; 1261 } 1262 /* set up MT2032 register map for transfer over i2c */ 1263 buf[0] = lo1n - 1; 1264 buf[1] = lo1a | (sel << 4); 1265 buf[2] = 0x86; /* LOGC */ 1266 buf[3] = 0x0f; /* reserved */ 1267 buf[4] = 0x1f; 1268 buf[5] = (lo2n - 1) | (lo2a << 5); 1269 if (rfin < 400 * 1000 * 1000) { 1270 buf[6] = 0xe4; 1271 } else { 1272 buf[6] = 0xf4; /* set PKEN per rev 1.2 */ 1273 } 1274 1275 buf[7] = 8 + xogc; 1276 buf[8] = 0xc3; /* reserved */ 1277 buf[9] = 0x4e; /* reserved */ 1278 buf[10] = 0xec; /* reserved */ 1279 buf[11] = (lo2num & 0xff); 1280 buf[12] = (lo2num >> 8) | 0x80; /* Lo2RST */ 1281 1282 return 0; 1283 } 1284 1285 static int 1286 MT2032_CheckLOLock(bktr_ptr_t bktr) 1287 { 1288 int t, lock = 0; 1289 for (t = 0; t < 10; t++) { 1290 lock = MT2032_GetRegister(0x0e) & 0x06; 1291 if (lock == 6) { 1292 break; 1293 } 1294 DELAY(1000); 1295 } 1296 return lock; 1297 } 1298 1299 static int 1300 MT2032_OptimizeVCO(bktr_ptr_t bktr, int sel, int lock) 1301 { 1302 int tad1, lo1a; 1303 1304 tad1 = MT2032_GetRegister(0x0f) & 0x07; 1305 1306 if (tad1 == 0) { 1307 return lock; 1308 } 1309 if (tad1 == 1) { 1310 return lock; 1311 } 1312 if (tad1 == 2) { 1313 if (sel == 0) { 1314 return lock; 1315 } else { 1316 sel--; 1317 } 1318 } else { 1319 if (sel < 4) { 1320 sel++; 1321 } else { 1322 return lock; 1323 } 1324 } 1325 lo1a = MT2032_GetRegister(0x01) & 0x07; 1326 MT2032_SetRegister(0x01, lo1a | (sel << 4)); 1327 lock = MT2032_CheckLOLock(bktr); 1328 return lock; 1329 } 1330 1331 static int 1332 MT2032_SetIFFreq(bktr_ptr_t bktr, int rfin, int if1, int if2, int from, int to) 1333 { 1334 u_char buf[21]; 1335 int lint_try, sel, lock = 0; 1336 1337 if (MT2032_ComputeFreq(rfin, if1, if2, from, to, &buf[0], &sel, MT2032_XOGC) == -1) 1338 return -1; 1339 1340 TDA9887_init(bktr, 0); 1341 1342 /* send only the relevant registers per Rev. 1.2 */ 1343 MT2032_SetRegister(0, buf[0x00]); 1344 MT2032_SetRegister(1, buf[0x01]); 1345 MT2032_SetRegister(2, buf[0x02]); 1346 1347 MT2032_SetRegister(5, buf[0x05]); 1348 MT2032_SetRegister(6, buf[0x06]); 1349 MT2032_SetRegister(7, buf[0x07]); 1350 1351 MT2032_SetRegister(11, buf[0x0B]); 1352 MT2032_SetRegister(12, buf[0x0C]); 1353 1354 /* wait for PLLs to lock (per manual), retry LINT if not. */ 1355 for (lint_try = 0; lint_try < 2; lint_try++) { 1356 lock = MT2032_CheckLOLock(bktr); 1357 1358 if (MT2032_OPTIMIZE_VCO) { 1359 lock = MT2032_OptimizeVCO(bktr, sel, lock); 1360 } 1361 if (lock == 6) { 1362 break; 1363 } 1364 /* set LINT to re-init PLLs */ 1365 MT2032_SetRegister(7, 0x80 + 8 + MT2032_XOGC); 1366 DELAY(10000); 1367 MT2032_SetRegister(7, 8 + MT2032_XOGC); 1368 } 1369 if (lock != 6) 1370 kprintf("%s: PLL didn't lock\n", bktr_name(bktr)); 1371 1372 MT2032_SetRegister(2, 0x20); 1373 1374 TDA9887_init(bktr, 1); 1375 return 0; 1376 } 1377 1378 static void 1379 mt2032_set_tv_freq(bktr_ptr_t bktr, unsigned int freq) 1380 { 1381 int if2,from,to; 1382 int stat, tad; 1383 1384 #ifdef MT2032_NTSC 1385 from=40750*1000; 1386 to=46750*1000; 1387 if2=45750*1000; 1388 #else 1389 from=32900*1000; 1390 to=39900*1000; 1391 if2=38900*1000; 1392 #endif 1393 1394 if (MT2032_SetIFFreq(bktr, freq*62500 /* freq*1000*1000/16 */, 1395 1090*1000*1000, if2, from, to) == 0) { 1396 bktr->tuner.frequency = freq; 1397 stat = MT2032_GetRegister(0x0e); 1398 tad = MT2032_GetRegister(0x0f); 1399 if (bootverbose) 1400 kprintf("%s: frequency set to %d, st = %#x, tad = %#x\n", 1401 bktr_name(bktr), freq*62500, stat, tad); 1402 } 1403 }
Cache object: 522ae42a0d0516b968a0c9dd78cc794e
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