sys/dev/video/bktr/bktr_audio.c
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 | /*- * 1. Redistributions of source code must retain the * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Amancio Hasty and * Roger Hardiman * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD: src/sys/dev/bktr/bktr_audio.c,v 1.16 2005/05/29 04:42:18 nyan Exp $ * $DragonFly: src/sys/dev/video/bktr/bktr_audio.c,v 1.10 2007/10/03 19:27:08 swildner Exp $ */ /* * This is part of the Driver for Video Capture Cards (Frame grabbers) * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879 * chipset. * Copyright Roger Hardiman and Amancio Hasty. * * bktr_audio : This deals with controlling the audio on TV cards, * controlling the Audio Multiplexer (audio source selector). * controlling any MSP34xx stereo audio decoders. * controlling any DPL35xx dolby surroud sound audio decoders. * initialising TDA98xx audio devices. * */ #include "opt_bktr.h" /* Include any kernel config options */ #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/bus.h> #include <sys/event.h> #include <bus/pci/pcivar.h> #include <dev/video/meteor/ioctl_meteor.h> #include <dev/video/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ #include <dev/video/bktr/bktr_reg.h> #include <dev/video/bktr/bktr_core.h> #include <dev/video/bktr/bktr_tuner.h> #include <dev/video/bktr/bktr_card.h> #include <dev/video/bktr/bktr_audio.h> /* * Prototypes for the GV_BCTV2 specific functions. */ void set_bctv2_audio( bktr_ptr_t bktr ); void bctv2_gpio_write( bktr_ptr_t bktr, int port, int val ); /*int bctv2_gpio_read( bktr_ptr_t bktr, int port );*/ /* Not used */ /* * init_audio_devices * Reset any MSP34xx or TDA98xx audio devices. */ void init_audio_devices( bktr_ptr_t bktr ) { /* enable stereo if appropriate on TDA audio chip */ if ( bktr->card.dbx ) init_BTSC( bktr ); /* reset the MSP34xx stereo audio chip */ if ( bktr->card.msp3400c ) msp_dpl_reset( bktr, bktr->msp_addr ); /* reset the DPL35xx dolby audio chip */ if ( bktr->card.dpl3518a ) msp_dpl_reset( bktr, bktr->dpl_addr ); } /* * */ #define AUDIOMUX_DISCOVER_NOT int set_audio( bktr_ptr_t bktr, int cmd ) { u_long temp; volatile u_char idx; #if defined( AUDIOMUX_DISCOVER ) if ( cmd >= 200 ) cmd -= 200; else #endif /* AUDIOMUX_DISCOVER */ /* check for existance of audio MUXes */ if ( !bktr->card.audiomuxs[ 4 ] ) return( -1 ); switch (cmd) { case AUDIO_TUNER: #ifdef BKTR_REVERSEMUTE bktr->audio_mux_select = 3; #else bktr->audio_mux_select = 0; #endif if (bktr->reverse_mute ) bktr->audio_mux_select = 0; else bktr->audio_mux_select = 3; break; case AUDIO_EXTERN: bktr->audio_mux_select = 1; break; case AUDIO_INTERN: bktr->audio_mux_select = 2; break; case AUDIO_MUTE: bktr->audio_mute_state = TRUE; /* set mute */ break; case AUDIO_UNMUTE: bktr->audio_mute_state = FALSE; /* clear mute */ break; default: kprintf("%s: audio cmd error %02x\n", bktr_name(bktr), cmd); return( -1 ); } /* Most cards have a simple audio multiplexer to select the * audio source. The I/O_GV card has a more advanced multiplexer * and requires special handling. */ if ( bktr->bt848_card == CARD_IO_BCTV2 ) { set_bctv2_audio( bktr ); return( 0 ); } /* Proceed with the simpler audio multiplexer code for the majority * of Bt848 cards. */ /* * Leave the upper bits of the GPIO port alone in case they control * something like the dbx or teletext chips. This doesn't guarantee * success, but follows the rule of least astonishment. */ if ( bktr->audio_mute_state == TRUE ) { #ifdef BKTR_REVERSEMUTE idx = 0; #else idx = 3; #endif if (bktr->reverse_mute ) idx = 3; else idx = 0; } else idx = bktr->audio_mux_select; temp = INL(bktr, BKTR_GPIO_DATA) & ~bktr->card.gpio_mux_bits; #if defined( AUDIOMUX_DISCOVER ) OUTL(bktr, BKTR_GPIO_DATA, temp | (cmd & 0xff)); kprintf("%s: cmd: %d audio mux %x temp %x \n", bktr_name(bktr), cmd, bktr->card.audiomuxs[ idx ], temp ); #else OUTL(bktr, BKTR_GPIO_DATA, temp | bktr->card.audiomuxs[ idx ]); #endif /* AUDIOMUX_DISCOVER */ /* Some new Hauppauge cards do not have an audio mux */ /* Instead we use the MSP34xx chip to select TV audio, Line-In */ /* FM Radio and Mute */ /* Examples of this are the Hauppauge 44xxx MSP34xx models */ /* It is ok to drive both the mux and the MSP34xx chip. */ /* If there is no mux, the MSP does the switching of the audio source */ /* If there is a mux, it does the switching of the audio source */ if ((bktr->card.msp3400c) && (bktr->audio_mux_present == 0)) { if (bktr->audio_mute_state == TRUE ) { msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x0000); /* volume to MUTE */ } else { if(bktr->audio_mux_select == 0) { /* TV Tuner */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ if (bktr->msp_source_selected != 0) msp_autodetect(bktr); /* setup TV audio mode */ bktr->msp_source_selected = 0; } if(bktr->audio_mux_select == 1) { /* Line In */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0000); /* DSP In = SC1_IN_L/R */ bktr->msp_source_selected = 1; } if(bktr->audio_mux_select == 2) { /* FM Radio */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0200); /* DSP In = SC2_IN_L/R */ bktr->msp_source_selected = 2; } } } return( 0 ); } /* * */ void temp_mute( bktr_ptr_t bktr, int flag ) { static int muteState = FALSE; if ( flag == TRUE ) { muteState = bktr->audio_mute_state; set_audio( bktr, AUDIO_MUTE ); /* prevent 'click' */ } else { tsleep( BKTR_SLEEP, 0, "tuning", hz/8 ); if ( muteState == FALSE ) set_audio( bktr, AUDIO_UNMUTE ); } } /* address of BTSC/SAP decoder chip */ #define TDA9850_WADDR 0xb6 #define TDA9850_RADDR 0xb7 /* registers in the TDA9850 BTSC/dbx chip */ #define CON1ADDR 0x04 #define CON2ADDR 0x05 #define CON3ADDR 0x06 #define CON4ADDR 0x07 #define ALI1ADDR 0x08 #define ALI2ADDR 0x09 #define ALI3ADDR 0x0a /* * initialise the dbx chip * taken from the Linux bttv driver TDA9850 initialisation code */ void init_BTSC( bktr_ptr_t bktr ) { i2cWrite(bktr, TDA9850_WADDR, CON1ADDR, 0x08); /* noise threshold st */ i2cWrite(bktr, TDA9850_WADDR, CON2ADDR, 0x08); /* noise threshold sap */ i2cWrite(bktr, TDA9850_WADDR, CON3ADDR, 0x40); /* stereo mode */ i2cWrite(bktr, TDA9850_WADDR, CON4ADDR, 0x07); /* 0 dB input gain? */ i2cWrite(bktr, TDA9850_WADDR, ALI1ADDR, 0x10); /* wideband alignment? */ i2cWrite(bktr, TDA9850_WADDR, ALI2ADDR, 0x10); /* spectral alignment? */ i2cWrite(bktr, TDA9850_WADDR, ALI3ADDR, 0x03); } /* * setup the dbx chip * XXX FIXME: alot of work to be done here, this merely unmutes it. */ int set_BTSC( bktr_ptr_t bktr, int control ) { return( i2cWrite( bktr, TDA9850_WADDR, CON3ADDR, control ) ); } /* * CARD_GV_BCTV2 specific functions. */ #define BCTV2_AUDIO_MAIN 0x10 /* main audio program */ #define BCTV2_AUDIO_SUB 0x20 /* sub audio program */ #define BCTV2_AUDIO_BOTH 0x30 /* main(L) + sub(R) program */ #define BCTV2_GPIO_REG0 1 #define BCTV2_GPIO_REG1 3 #define BCTV2_GR0_AUDIO_MODE 3 #define BCTV2_GR0_AUDIO_MAIN 0 /* main program */ #define BCTV2_GR0_AUDIO_SUB 3 /* sub program */ #define BCTV2_GR0_AUDIO_BOTH 1 /* main(L) + sub(R) */ #define BCTV2_GR0_AUDIO_MUTE 4 /* audio mute */ #define BCTV2_GR0_AUDIO_MONO 8 /* force mono */ void set_bctv2_audio( bktr_ptr_t bktr ) { int data; switch (bktr->audio_mux_select) { case 1: /* external */ case 2: /* internal */ bctv2_gpio_write(bktr, BCTV2_GPIO_REG1, 0); break; default: /* tuner */ bctv2_gpio_write(bktr, BCTV2_GPIO_REG1, 1); break; } /* switch (bktr->audio_sap_select) { */ switch (BCTV2_AUDIO_BOTH) { case BCTV2_AUDIO_SUB: data = BCTV2_GR0_AUDIO_SUB; break; case BCTV2_AUDIO_BOTH: data = BCTV2_GR0_AUDIO_BOTH; break; case BCTV2_AUDIO_MAIN: default: data = BCTV2_GR0_AUDIO_MAIN; break; } if (bktr->audio_mute_state == TRUE) data |= BCTV2_GR0_AUDIO_MUTE; bctv2_gpio_write(bktr, BCTV2_GPIO_REG0, data); return; } /* gpio_data bit assignment */ #define BCTV2_GPIO_ADDR_MASK 0x000300 #define BCTV2_GPIO_WE 0x000400 #define BCTV2_GPIO_OE 0x000800 #define BCTV2_GPIO_VAL_MASK 0x00f000 #define BCTV2_GPIO_PORT_MASK 3 #define BCTV2_GPIO_ADDR_SHIFT 8 #define BCTV2_GPIO_VAL_SHIFT 12 /* gpio_out_en value for read/write */ #define BCTV2_GPIO_OUT_RMASK 0x000f00 #define BCTV2_GPIO_OUT_WMASK 0x00ff00 #define BCTV2_BITS 100 void bctv2_gpio_write( bktr_ptr_t bktr, int port, int val ) { u_long data, outbits; port &= BCTV2_GPIO_PORT_MASK; switch (port) { case 1: case 3: data = ((val << BCTV2_GPIO_VAL_SHIFT) & BCTV2_GPIO_VAL_MASK) | ((port << BCTV2_GPIO_ADDR_SHIFT) & BCTV2_GPIO_ADDR_MASK) | BCTV2_GPIO_WE | BCTV2_GPIO_OE; outbits = BCTV2_GPIO_OUT_WMASK; break; default: return; } OUTL(bktr, BKTR_GPIO_OUT_EN, 0); OUTL(bktr, BKTR_GPIO_DATA, data); OUTL(bktr, BKTR_GPIO_OUT_EN, outbits); DELAY(BCTV2_BITS); OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV2_GPIO_WE); DELAY(BCTV2_BITS); OUTL(bktr, BKTR_GPIO_DATA, data); DELAY(BCTV2_BITS); OUTL(bktr, BKTR_GPIO_DATA, ~0); OUTL(bktr, BKTR_GPIO_OUT_EN, 0); } /* Not yet used int bctv2_gpio_read( bktr_ptr_t bktr, int port ) { u_long data, outbits, ret; port &= BCTV2_GPIO_PORT_MASK; switch (port) { case 1: case 3: data = ((port << BCTV2_GPIO_ADDR_SHIFT) & BCTV2_GPIO_ADDR_MASK) | BCTV2_GPIO_WE | BCTV2_GPIO_OE; outbits = BCTV2_GPIO_OUT_RMASK; break; default: return( -1 ); } OUTL(bktr, BKTR_GPIO_OUT_EN, 0); OUTL(bktr, BKTR_GPIO_DATA, data); OUTL(bktr, BKTR_GPIO_OUT_EN, outbits); DELAY(BCTV2_BITS); OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV2_GPIO_OE); DELAY(BCTV2_BITS); ret = INL(bktr, BKTR_GPIO_DATA); DELAY(BCTV2_BITS); OUTL(bktr, BKTR_GPIO_DATA, data); DELAY(BCTV2_BITS); OUTL(bktr, BKTR_GPIO_DATA, ~0); OUTL(bktr, BKTR_GPIO_OUT_EN, 0); return( (ret & BCTV2_GPIO_VAL_MASK) >> BCTV2_GPIO_VAL_SHIFT ); } */ /* * setup the MSP34xx Stereo Audio Chip * This uses the Auto Configuration Option on MSP3410D and MSP3415D chips * and DBX mode selection for MSP3430G chips. * For MSP3400C support, the full programming sequence is required and is * not yet supported. */ /* Read the MSP version string */ void msp_read_id( bktr_ptr_t bktr ){ int rev1=0, rev2=0; rev1 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001e); rev2 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001f); ksprintf(bktr->msp_version_string, "34%02d%c-%c%d", (rev2>>8)&0xff, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f); } /* Configure the MSP chip to Auto-detect the audio format. * For the MSP3430G, we use fast autodetect mode * For the MSP3410/3415 there are two schemes for this * a) Fast autodetection - the chip is put into autodetect mode, and the function * returns immediatly. This works in most cases and is the Default Mode. * b) Slow mode. The function sets the MSP3410/3415 chip, then waits for feedback from * the chip and re-programs it if needed. */ void msp_autodetect( bktr_ptr_t bktr ) { #ifdef BKTR_NEW_MSP34XX_DRIVER /* Just wake up the (maybe) sleeping thread, it'll do everything for us */ msp_wake_thread(bktr); #else int auto_detect, loops; int stereo; /* MSP3430G - countries with mono and DBX stereo */ if (strncmp("3430G", bktr->msp_version_string, 5) == 0){ msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0030,0x2003);/* Enable Auto format detection */ msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0020);/* Standard Select Reg. = BTSC-Stereo*/ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000E,0x2403);/* darned if I know */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0320);/* Source select = (St or A) */ /* & Ch. Matrix = St */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ } /* MSP3415D SPECIAL CASE Use the Tuner's Mono audio ouput for the MSP */ /* (for Hauppauge 44xxx card with Tuner Type 0x2a) */ else if ( ( (strncmp("3415D", bktr->msp_version_string, 5) == 0) &&(bktr->msp_use_mono_source == 1) ) || (bktr->slow_msp_audio == 2) ){ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0100); /* DSP In = MONO IN */ } /* MSP3410/MSP3415 - countries with mono, stereo using 2 FM channels and NICAM */ /* FAST sound scheme */ else if (bktr->slow_msp_audio == 0) { msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Spkr Source = default(FM/AM) */ msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */ msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */ } /* MSP3410/MSP3415 - European Countries where the fast MSP3410/3415 programming fails */ /* SLOW sound scheme */ else if ( bktr->slow_msp_audio == 1) { msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */ /* wait for 0.5s max for terrestrial sound autodetection */ loops = 10; do { DELAY(100000); auto_detect = msp_dpl_read(bktr, bktr->msp_addr, 0x10, 0x007e); loops++; } while (auto_detect > 0xff && loops < 50); if (bootverbose)kprintf ("%s: Result of autodetect after %dms: %d\n", bktr_name(bktr), loops*10, auto_detect); /* Now set the audio baseband processing */ switch (auto_detect) { case 0: /* no TV sound standard detected */ break; case 2: /* M Dual FM */ break; case 3: /* B/G Dual FM; German stereo */ /* Read the stereo detection value from DSP reg 0x0018 */ DELAY(20000); stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); if (bootverbose)kprintf ("%s: Stereo reg 0x18 a: %d\n", bktr_name(bktr), stereo); DELAY(20000); stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); if (bootverbose)kprintf ("%s: Stereo reg 0x18 b: %d\n", bktr_name(bktr), stereo); DELAY(20000); stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); if (bootverbose)kprintf ("%s: Stereo reg 0x18 c: %d\n", bktr_name(bktr), stereo); if (stereo > 0x0100 && stereo < 0x8000) { /* Seems to be stereo */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker set stereo*/ /* set spatial effect strength to 50% enlargement set spatial effect mode b, stereo basewidth enlargment only */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f28); } else if (stereo > 0x8000) { /* bilingual mode */ if (bootverbose) kprintf ("%s: Bilingual mode detected\n", bktr_name(bktr)); msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Loudspeaker */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x0000);/* all spatial effects off */ } else { /* must be mono */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0030);/* Loudspeaker */ /* set spatial effect strength to 50% enlargement set spatial effect mode a, stereo basewidth enlargment and pseudo stereo effect with automatic high-pass filter */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f08); } #if 0 /* The reset value for Channel matrix mode is FM/AM and SOUNDA/LEFT */ /* We would like STEREO instead val: 0x0020 */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0009,0x0020);/* Headphone */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000a,0x0020);/* SCART1 */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0041,0x0020);/* SCART2 */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000b,0x0020);/* I2S */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000c,0x0020);/* Quasi-Peak Detector Source */ msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000e,0x0001); #endif break; case 8: /* B/G FM NICAM */ msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */ break; case 9: /* L_AM NICAM or D/K*/ case 10: /* i-FM NICAM */ break; default: if (bootverbose) kprintf ("%s: Unknown autodetection result value: %d\n", bktr_name(bktr), auto_detect); } } /* uncomment the following line to enable the MSP34xx 1Khz Tone Generator */ /* turn your speaker volume down low before trying this */ /* msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0014, 0x7f40); */ #endif /* BKTR_NEW_MSP34XX_DRIVER */ } /* Read the DPL version string */ void dpl_read_id( bktr_ptr_t bktr ){ int rev1=0, rev2=0; rev1 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001e); rev2 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001f); ksprintf(bktr->dpl_version_string, "34%02d%c-%c%d", ((rev2>>8)&0xff)-1, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f); } /* Configure the DPL chip to Auto-detect the audio format */ void dpl_autodetect( bktr_ptr_t bktr ) { /* The following are empiric values tried from the DPL35xx data sheet */ msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x000c,0x0320); /* quasi peak detector source dolby lr 0x03xx; quasi peak detector matrix stereo 0xXX20 */ msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0040,0x0060); /* Surround decoder mode; ADAPTIVE/3D-PANORAMA, that means two speakers and no center speaker, all channels L/R/C/S mixed to L and R */ msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0041,0x0620); /* surround source matrix;I2S2/STEREO*/ msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0042,0x1F00); /* surround delay 31ms max */ msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0043,0x0000); /* automatic surround input balance */ msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0044,0x4000); /* surround spatial effect 50% recommended*/ msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0045,0x5400); /* surround panorama effect 66% recommended with PANORAMA mode in 0x0040 set to panorama */ } |