1/*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * 1. Redistributions of source code must retain the 5 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Amancio Hasty and 19 * Roger Hardiman 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 26 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 32 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36#include <sys/cdefs.h> 37__FBSDID("$FreeBSD$"); 38 39/* 40 * This is part of the Driver for Video Capture Cards (Frame grabbers) 41 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879 42 * chipset. 43 * Copyright Roger Hardiman and Amancio Hasty. 44 * 45 * bktr_audio : This deals with controlling the audio on TV cards, 46 * controlling the Audio Multiplexer (audio source selector). 47 * controlling any MSP34xx stereo audio decoders. 48 * controlling any DPL35xx dolby surroud sound audio decoders. 49 * initialising TDA98xx audio devices. 50 * 51 */ 52 53#include "opt_bktr.h" /* Include any kernel config options */ 54 55#include <sys/param.h> 56#include <sys/systm.h> 57#include <sys/kernel.h> 58 59#ifdef __FreeBSD__ 60 61#if (__FreeBSD_version < 500000) 62#include <machine/clock.h> /* for DELAY */ 63#include <pci/pcivar.h> 64#else 65#include <sys/lock.h> 66#include <sys/mutex.h> 67#include <sys/selinfo.h> 68#include <dev/pci/pcivar.h> 69#endif 70 71#include <machine/bus.h> 72#include <sys/bus.h> 73#endif 74 75#ifdef __NetBSD__ 76#include <sys/proc.h> 77#include <dev/ic/bt8xx.h> /* NetBSD location of .h files */ 78#include <dev/pci/bktr/bktr_reg.h> 79#include <dev/pci/bktr/bktr_core.h> 80#include <dev/pci/bktr/bktr_tuner.h> 81#include <dev/pci/bktr/bktr_card.h> 82#include <dev/pci/bktr/bktr_audio.h> 83#else 84#include <dev/bktr/ioctl_meteor.h> 85#include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 86#include <dev/bktr/bktr_reg.h> 87#include <dev/bktr/bktr_core.h> 88#include <dev/bktr/bktr_tuner.h> 89#include <dev/bktr/bktr_card.h> 90#include <dev/bktr/bktr_audio.h> 91#endif 92 93/* 94 * Prototypes for the GV_BCTV2 specific functions. 95 */ 96void set_bctv2_audio( bktr_ptr_t bktr ); 97void bctv2_gpio_write( bktr_ptr_t bktr, int port, int val ); 98/*int bctv2_gpio_read( bktr_ptr_t bktr, int port );*/ /* Not used */ 99 100/* 101 * init_audio_devices 102 * Reset any MSP34xx or TDA98xx audio devices. 103 */ 104void init_audio_devices( bktr_ptr_t bktr ) { 105 106 /* enable stereo if appropriate on TDA audio chip */ 107 if ( bktr->card.dbx ) 108 init_BTSC( bktr ); 109 110 /* reset the MSP34xx stereo audio chip */ 111 if ( bktr->card.msp3400c ) 112 msp_dpl_reset( bktr, bktr->msp_addr ); 113 114 /* reset the DPL35xx dolby audio chip */ 115 if ( bktr->card.dpl3518a ) 116 msp_dpl_reset( bktr, bktr->dpl_addr ); 117 118} 119 120 121/* 122 * 123 */ 124#define AUDIOMUX_DISCOVER_NOT 125int 126set_audio( bktr_ptr_t bktr, int cmd ) 127{ 128 u_long temp; 129 volatile u_char idx; 130 131#if defined( AUDIOMUX_DISCOVER ) 132 if ( cmd >= 200 ) 133 cmd -= 200; 134 else 135#endif /* AUDIOMUX_DISCOVER */ 136 137 /* check for existence of audio MUXes */ 138 if ( !bktr->card.audiomuxs[ 4 ] ) 139 return( -1 ); 140 141 switch (cmd) { 142 case AUDIO_TUNER: 143#ifdef BKTR_REVERSEMUTE 144 bktr->audio_mux_select = 3; 145#else 146 bktr->audio_mux_select = 0; 147#endif 148 149 if (bktr->reverse_mute ) 150 bktr->audio_mux_select = 0; 151 else 152 bktr->audio_mux_select = 3; 153 154 break; 155 case AUDIO_EXTERN: 156 bktr->audio_mux_select = 1; 157 break; 158 case AUDIO_INTERN: 159 bktr->audio_mux_select = 2; 160 break; 161 case AUDIO_MUTE: 162 bktr->audio_mute_state = TRUE; /* set mute */ 163 break; 164 case AUDIO_UNMUTE: 165 bktr->audio_mute_state = FALSE; /* clear mute */ 166 break; 167 default: 168 printf("%s: audio cmd error %02x\n", bktr_name(bktr), 169 cmd); 170 return( -1 ); 171 } 172 173 174 /* Most cards have a simple audio multiplexer to select the 175 * audio source. The I/O_GV card has a more advanced multiplexer 176 * and requires special handling. 177 */ 178 if ( bktr->bt848_card == CARD_IO_BCTV2 ) { 179 set_bctv2_audio( bktr ); 180 return( 0 ); 181 } 182 183 /* Proceed with the simpler audio multiplexer code for the majority 184 * of Bt848 cards. 185 */ 186 187 /* 188 * Leave the upper bits of the GPIO port alone in case they control 189 * something like the dbx or teletext chips. This doesn't guarantee 190 * success, but follows the rule of least astonishment. 191 */ 192 193 if ( bktr->audio_mute_state == TRUE ) { 194#ifdef BKTR_REVERSEMUTE 195 idx = 0; 196#else 197 idx = 3; 198#endif 199 200 if (bktr->reverse_mute ) 201 idx = 3; 202 else 203 idx = 0; 204 205 } 206 else 207 idx = bktr->audio_mux_select; 208 209 210 temp = INL(bktr, BKTR_GPIO_DATA) & ~bktr->card.gpio_mux_bits; 211#if defined( AUDIOMUX_DISCOVER ) 212 OUTL(bktr, BKTR_GPIO_DATA, temp | (cmd & 0xff)); 213 printf("%s: cmd: %d audio mux %x temp %x \n", bktr_name(bktr), 214 cmd, bktr->card.audiomuxs[ idx ], temp ); 215#else 216 OUTL(bktr, BKTR_GPIO_DATA, temp | bktr->card.audiomuxs[ idx ]); 217#endif /* AUDIOMUX_DISCOVER */ 218 219 220 221 /* Some new Hauppauge cards do not have an audio mux */ 222 /* Instead we use the MSP34xx chip to select TV audio, Line-In */ 223 /* FM Radio and Mute */ 224 /* Examples of this are the Hauppauge 44xxx MSP34xx models */ 225 /* It is ok to drive both the mux and the MSP34xx chip. */ 226 /* If there is no mux, the MSP does the switching of the audio source */ 227 /* If there is a mux, it does the switching of the audio source */ 228 229 if ((bktr->card.msp3400c) && (bktr->audio_mux_present == 0)) { 230 231 if (bktr->audio_mute_state == TRUE ) { 232 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x0000); /* volume to MUTE */ 233 } else { 234 if(bktr->audio_mux_select == 0) { /* TV Tuner */ 235 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 236 if (bktr->msp_source_selected != 0) msp_autodetect(bktr); /* setup TV audio mode */ 237 bktr->msp_source_selected = 0; 238 } 239 if(bktr->audio_mux_select == 1) { /* Line In */ 240 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 241 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ 242 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ 243 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0000); /* DSP In = SC1_IN_L/R */ 244 bktr->msp_source_selected = 1; 245 } 246 247 if(bktr->audio_mux_select == 2) { /* FM Radio */ 248 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 249 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ 250 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ 251 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0200); /* DSP In = SC2_IN_L/R */ 252 bktr->msp_source_selected = 2; 253 } 254 } 255 } 256 257 258 return( 0 ); 259} 260 261 262/* 263 * 264 */ 265void 266temp_mute( bktr_ptr_t bktr, int flag ) 267{ 268 static int muteState = FALSE; 269 270 if ( flag == TRUE ) { 271 muteState = bktr->audio_mute_state; 272 set_audio( bktr, AUDIO_MUTE ); /* prevent 'click' */ 273 } 274 else { 275 tsleep( BKTR_SLEEP, PZERO, "tuning", hz/8 ); 276 if ( muteState == FALSE ) 277 set_audio( bktr, AUDIO_UNMUTE ); 278 } 279} 280 281/* address of BTSC/SAP decoder chip */ 282#define TDA9850_WADDR 0xb6 283#define TDA9850_RADDR 0xb7 284 285 286/* registers in the TDA9850 BTSC/dbx chip */ 287#define CON1ADDR 0x04 288#define CON2ADDR 0x05 289#define CON3ADDR 0x06 290#define CON4ADDR 0x07 291#define ALI1ADDR 0x08 292#define ALI2ADDR 0x09 293#define ALI3ADDR 0x0a 294 295/* 296 * initialise the dbx chip 297 * taken from the Linux bttv driver TDA9850 initialisation code 298 */ 299void 300init_BTSC( bktr_ptr_t bktr ) 301{ 302 i2cWrite(bktr, TDA9850_WADDR, CON1ADDR, 0x08); /* noise threshold st */ 303 i2cWrite(bktr, TDA9850_WADDR, CON2ADDR, 0x08); /* noise threshold sap */ 304 i2cWrite(bktr, TDA9850_WADDR, CON3ADDR, 0x40); /* stereo mode */ 305 i2cWrite(bktr, TDA9850_WADDR, CON4ADDR, 0x07); /* 0 dB input gain? */ 306 i2cWrite(bktr, TDA9850_WADDR, ALI1ADDR, 0x10); /* wideband alignment? */ 307 i2cWrite(bktr, TDA9850_WADDR, ALI2ADDR, 0x10); /* spectral alignment? */ 308 i2cWrite(bktr, TDA9850_WADDR, ALI3ADDR, 0x03); 309} 310 311/* 312 * setup the dbx chip 313 * XXX FIXME: a lot of work to be done here, this merely unmutes it. 314 */ 315int 316set_BTSC( bktr_ptr_t bktr, int control ) 317{ 318 return( i2cWrite( bktr, TDA9850_WADDR, CON3ADDR, control ) ); 319} 320 321/* 322 * CARD_GV_BCTV2 specific functions. 323 */ 324 325#define BCTV2_AUDIO_MAIN 0x10 /* main audio program */ 326#define BCTV2_AUDIO_SUB 0x20 /* sub audio program */ 327#define BCTV2_AUDIO_BOTH 0x30 /* main(L) + sub(R) program */ 328 329#define BCTV2_GPIO_REG0 1 330#define BCTV2_GPIO_REG1 3 331 332#define BCTV2_GR0_AUDIO_MODE 3 333#define BCTV2_GR0_AUDIO_MAIN 0 /* main program */ 334#define BCTV2_GR0_AUDIO_SUB 3 /* sub program */ 335#define BCTV2_GR0_AUDIO_BOTH 1 /* main(L) + sub(R) */ 336#define BCTV2_GR0_AUDIO_MUTE 4 /* audio mute */ 337#define BCTV2_GR0_AUDIO_MONO 8 /* force mono */ 338 339void 340set_bctv2_audio( bktr_ptr_t bktr ) 341{ 342 int data; 343 344 switch (bktr->audio_mux_select) { 345 case 1: /* external */ 346 case 2: /* internal */ 347 bctv2_gpio_write(bktr, BCTV2_GPIO_REG1, 0); 348 break; 349 default: /* tuner */ 350 bctv2_gpio_write(bktr, BCTV2_GPIO_REG1, 1); 351 break; 352 } 353/* switch (bktr->audio_sap_select) { */ 354 switch (BCTV2_AUDIO_BOTH) { 355 case BCTV2_AUDIO_SUB: 356 data = BCTV2_GR0_AUDIO_SUB; 357 break; 358 case BCTV2_AUDIO_BOTH: 359 data = BCTV2_GR0_AUDIO_BOTH; 360 break; 361 case BCTV2_AUDIO_MAIN: 362 default: 363 data = BCTV2_GR0_AUDIO_MAIN; 364 break; 365 } 366 if (bktr->audio_mute_state == TRUE) 367 data |= BCTV2_GR0_AUDIO_MUTE; 368 369 bctv2_gpio_write(bktr, BCTV2_GPIO_REG0, data); 370 371 return; 372} 373 374/* gpio_data bit assignment */ 375#define BCTV2_GPIO_ADDR_MASK 0x000300 376#define BCTV2_GPIO_WE 0x000400 377#define BCTV2_GPIO_OE 0x000800 378#define BCTV2_GPIO_VAL_MASK 0x00f000 379 380#define BCTV2_GPIO_PORT_MASK 3 381#define BCTV2_GPIO_ADDR_SHIFT 8 382#define BCTV2_GPIO_VAL_SHIFT 12 383 384/* gpio_out_en value for read/write */ 385#define BCTV2_GPIO_OUT_RMASK 0x000f00 386#define BCTV2_GPIO_OUT_WMASK 0x00ff00 387 388#define BCTV2_BITS 100 389 390void 391bctv2_gpio_write( bktr_ptr_t bktr, int port, int val ) 392{ 393 u_long data, outbits; 394 395 port &= BCTV2_GPIO_PORT_MASK; 396 switch (port) { 397 case 1: 398 case 3: 399 data = ((val << BCTV2_GPIO_VAL_SHIFT) & BCTV2_GPIO_VAL_MASK) | 400 ((port << BCTV2_GPIO_ADDR_SHIFT) & BCTV2_GPIO_ADDR_MASK) | 401 BCTV2_GPIO_WE | BCTV2_GPIO_OE; 402 outbits = BCTV2_GPIO_OUT_WMASK; 403 break; 404 default: 405 return; 406 } 407 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 408 OUTL(bktr, BKTR_GPIO_DATA, data); 409 OUTL(bktr, BKTR_GPIO_OUT_EN, outbits); 410 DELAY(BCTV2_BITS); 411 OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV2_GPIO_WE); 412 DELAY(BCTV2_BITS); 413 OUTL(bktr, BKTR_GPIO_DATA, data); 414 DELAY(BCTV2_BITS); 415 OUTL(bktr, BKTR_GPIO_DATA, ~0); 416 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 417} 418 419/* Not yet used 420int 421bctv2_gpio_read( bktr_ptr_t bktr, int port ) 422{ 423 u_long data, outbits, ret; 424 425 port &= BCTV2_GPIO_PORT_MASK; 426 switch (port) { 427 case 1: 428 case 3: 429 data = ((port << BCTV2_GPIO_ADDR_SHIFT) & BCTV2_GPIO_ADDR_MASK) | 430 BCTV2_GPIO_WE | BCTV2_GPIO_OE; 431 outbits = BCTV2_GPIO_OUT_RMASK; 432 break; 433 default: 434 return( -1 ); 435 } 436 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 437 OUTL(bktr, BKTR_GPIO_DATA, data); 438 OUTL(bktr, BKTR_GPIO_OUT_EN, outbits); 439 DELAY(BCTV2_BITS); 440 OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV2_GPIO_OE); 441 DELAY(BCTV2_BITS); 442 ret = INL(bktr, BKTR_GPIO_DATA); 443 DELAY(BCTV2_BITS); 444 OUTL(bktr, BKTR_GPIO_DATA, data); 445 DELAY(BCTV2_BITS); 446 OUTL(bktr, BKTR_GPIO_DATA, ~0); 447 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 448 return( (ret & BCTV2_GPIO_VAL_MASK) >> BCTV2_GPIO_VAL_SHIFT ); 449} 450*/ 451 452/* 453 * setup the MSP34xx Stereo Audio Chip 454 * This uses the Auto Configuration Option on MSP3410D and MSP3415D chips 455 * and DBX mode selection for MSP3430G chips. 456 * For MSP3400C support, the full programming sequence is required and is 457 * not yet supported. 458 */ 459 460/* Read the MSP version string */ 461void msp_read_id( bktr_ptr_t bktr ){ 462 int rev1=0, rev2=0; 463 rev1 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001e); 464 rev2 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001f); 465 466 sprintf(bktr->msp_version_string, "34%02d%c-%c%d", 467 (rev2>>8)&0xff, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f); 468 469} 470 471 472/* Configure the MSP chip to Auto-detect the audio format. 473 * For the MSP3430G, we use fast autodetect mode 474 * For the MSP3410/3415 there are two schemes for this 475 * a) Fast autodetection - the chip is put into autodetect mode, and the function 476 * returns immediately. This works in most cases and is the Default Mode. 477 * b) Slow mode. The function sets the MSP3410/3415 chip, then waits for feedback from 478 * the chip and re-programs it if needed. 479 */ 480void msp_autodetect( bktr_ptr_t bktr ) { 481 482#ifdef BKTR_NEW_MSP34XX_DRIVER 483 484 /* Just wake up the (maybe) sleeping thread, it'll do everything for us */ 485 msp_wake_thread(bktr); 486 487#else 488 int auto_detect, loops; 489 int stereo; 490 491 /* MSP3430G - countries with mono and DBX stereo */ 492 if (strncmp("3430G", bktr->msp_version_string, 5) == 0){ 493 494 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0030,0x2003);/* Enable Auto format detection */ 495 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0020);/* Standard Select Reg. = BTSC-Stereo*/ 496 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000E,0x2403);/* darned if I know */ 497 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0320);/* Source select = (St or A) */ 498 /* & Ch. Matrix = St */ 499 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ 500 } 501 502 503 /* MSP3415D SPECIAL CASE Use the Tuner's Mono audio output for the MSP */ 504 /* (for Hauppauge 44xxx card with Tuner Type 0x2a) */ 505 else if ( ( (strncmp("3415D", bktr->msp_version_string, 5) == 0) 506 &&(bktr->msp_use_mono_source == 1) 507 ) 508 || (bktr->slow_msp_audio == 2) ){ 509 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 510 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ 511 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ 512 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0100); /* DSP In = MONO IN */ 513 } 514 515 516 /* MSP3410/MSP3415 - countries with mono, stereo using 2 FM channels and NICAM */ 517 /* FAST sound scheme */ 518 else if (bktr->slow_msp_audio == 0) { 519 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ 520 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Spkr Source = default(FM/AM) */ 521 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */ 522 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */ 523 } 524 525 526 /* MSP3410/MSP3415 - European Countries where the fast MSP3410/3415 programming fails */ 527 /* SLOW sound scheme */ 528 else if ( bktr->slow_msp_audio == 1) { 529 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ 530 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */ 531 532 /* wait for 0.5s max for terrestrial sound autodetection */ 533 loops = 10; 534 do { 535 DELAY(100000); 536 auto_detect = msp_dpl_read(bktr, bktr->msp_addr, 0x10, 0x007e); 537 loops++; 538 } while (auto_detect > 0xff && loops < 50); 539 if (bootverbose)printf ("%s: Result of autodetect after %dms: %d\n", 540 bktr_name(bktr), loops*10, auto_detect); 541 542 /* Now set the audio baseband processing */ 543 switch (auto_detect) { 544 case 0: /* no TV sound standard detected */ 545 break; 546 case 2: /* M Dual FM */ 547 break; 548 case 3: /* B/G Dual FM; German stereo */ 549 /* Read the stereo detection value from DSP reg 0x0018 */ 550 DELAY(20000); 551 stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); 552 if (bootverbose)printf ("%s: Stereo reg 0x18 a: %d\n", 553 bktr_name(bktr), stereo); 554 DELAY(20000); 555 stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); 556 if (bootverbose)printf ("%s: Stereo reg 0x18 b: %d\n", 557 bktr_name(bktr), stereo); 558 DELAY(20000); 559 stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); 560 if (bootverbose)printf ("%s: Stereo reg 0x18 c: %d\n", 561 bktr_name(bktr), stereo); 562 if (stereo > 0x0100 && stereo < 0x8000) { /* Seems to be stereo */ 563 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker set stereo*/ 564 /* 565 set spatial effect strength to 50% enlargement 566 set spatial effect mode b, stereo basewidth enlargement only 567 */ 568 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f28); 569 } else if (stereo > 0x8000) { /* bilingual mode */ 570 if (bootverbose) printf ("%s: Bilingual mode detected\n", 571 bktr_name(bktr)); 572 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Loudspeaker */ 573 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x0000);/* all spatial effects off */ 574 } else { /* must be mono */ 575 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0030);/* Loudspeaker */ 576 /* 577 set spatial effect strength to 50% enlargement 578 set spatial effect mode a, stereo basewidth enlargement 579 and pseudo stereo effect with automatic high-pass filter 580 */ 581 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f08); 582 } 583#if 0 584 /* The reset value for Channel matrix mode is FM/AM and SOUNDA/LEFT */ 585 /* We would like STEREO instead val: 0x0020 */ 586 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker */ 587 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0009,0x0020);/* Headphone */ 588 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000a,0x0020);/* SCART1 */ 589 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0041,0x0020);/* SCART2 */ 590 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000b,0x0020);/* I2S */ 591 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000c,0x0020);/* Quasi-Peak Detector Source */ 592 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000e,0x0001); 593#endif 594 break; 595 case 8: /* B/G FM NICAM */ 596 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */ 597 break; 598 case 9: /* L_AM NICAM or D/K*/ 599 case 10: /* i-FM NICAM */ 600 break; 601 default: 602 if (bootverbose) printf ("%s: Unknown autodetection result value: %d\n", 603 bktr_name(bktr), auto_detect); 604 } 605 606 } 607 608 609 /* uncomment the following line to enable the MSP34xx 1Khz Tone Generator */ 610 /* turn your speaker volume down low before trying this */ 611 /* msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0014, 0x7f40); */ 612 613#endif /* BKTR_NEW_MSP34XX_DRIVER */ 614} 615 616/* Read the DPL version string */ 617void dpl_read_id( bktr_ptr_t bktr ){ 618 int rev1=0, rev2=0; 619 rev1 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001e); 620 rev2 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001f); 621 622 sprintf(bktr->dpl_version_string, "34%02d%c-%c%d", 623 ((rev2>>8)&0xff)-1, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f); 624} 625 626/* Configure the DPL chip to Auto-detect the audio format */ 627void dpl_autodetect( bktr_ptr_t bktr ) { 628 629 /* The following are empiric values tried from the DPL35xx data sheet */ 630 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x000c,0x0320); /* quasi peak detector source dolby 631 lr 0x03xx; quasi peak detector matrix 632 stereo 0xXX20 */ 633 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0040,0x0060); /* Surround decoder mode; 634 ADAPTIVE/3D-PANORAMA, that means two 635 speakers and no center speaker, all 636 channels L/R/C/S mixed to L and R */ 637 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0041,0x0620); /* surround source matrix;I2S2/STEREO*/ 638 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0042,0x1F00); /* surround delay 31ms max */ 639 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0043,0x0000); /* automatic surround input balance */ 640 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0044,0x4000); /* surround spatial effect 50% 641 recommended*/ 642 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0045,0x5400); /* surround panorama effect 66% 643 recommended with PANORAMA mode 644 in 0x0040 set to panorama */ 645} 646 647