bktr_audio.c revision 110237
1/* $FreeBSD: head/sys/dev/bktr/bktr_audio.c 110237 2003-02-02 17:46:00Z orion $ */ 2/* 3 * This is part of the Driver for Video Capture Cards (Frame grabbers) 4 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879 5 * chipset. 6 * Copyright Roger Hardiman and Amancio Hasty. 7 * 8 * bktr_audio : This deals with controlling the audio on TV cards, 9 * controlling the Audio Multiplexer (audio source selector). 10 * controlling any MSP34xx stereo audio decoders. 11 * controlling any DPL35xx dolby surroud sound audio decoders. 12 * initialising TDA98xx audio devices. 13 * 14 */ 15 16/* 17 * 1. Redistributions of source code must retain the 18 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman 19 * All rights reserved. 20 * 21 * Redistribution and use in source and binary forms, with or without 22 * modification, are permitted provided that the following conditions 23 * are met: 24 * 1. Redistributions of source code must retain the above copyright 25 * notice, this list of conditions and the following disclaimer. 26 * 2. Redistributions in binary form must reproduce the above copyright 27 * notice, this list of conditions and the following disclaimer in the 28 * documentation and/or other materials provided with the distribution. 29 * 3. All advertising materials mentioning features or use of this software 30 * must display the following acknowledgement: 31 * This product includes software developed by Amancio Hasty and 32 * Roger Hardiman 33 * 4. The name of the author may not be used to endorse or promote products 34 * derived from this software without specific prior written permission. 35 * 36 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 37 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 38 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 39 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 40 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 41 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 42 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 45 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 46 * POSSIBILITY OF SUCH DAMAGE. 47 */ 48 49#include <sys/param.h> 50#include <sys/systm.h> 51#include <sys/kernel.h> 52#include <sys/vnode.h> 53 54#ifdef __FreeBSD__ 55 56#if (__FreeBSD_version < 500000) 57#include <machine/clock.h> /* for DELAY */ 58#endif 59 60#include <pci/pcivar.h> 61 62#if (__FreeBSD_version >=300000) 63#include <machine/bus_memio.h> /* for bus space */ 64#include <machine/bus.h> 65#include <sys/bus.h> 66#endif 67#endif 68 69#ifdef __NetBSD__ 70#include <sys/proc.h> 71#include <dev/ic/bt8xx.h> /* NetBSD location of .h files */ 72#include <dev/pci/bktr/bktr_reg.h> 73#include <dev/pci/bktr/bktr_core.h> 74#include <dev/pci/bktr/bktr_tuner.h> 75#include <dev/pci/bktr/bktr_card.h> 76#include <dev/pci/bktr/bktr_audio.h> 77#else 78#include <machine/ioctl_meteor.h> /* Traditional location of .h files */ 79#include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 80#include <dev/bktr/bktr_reg.h> 81#include <dev/bktr/bktr_core.h> 82#include <dev/bktr/bktr_tuner.h> 83#include <dev/bktr/bktr_card.h> 84#include <dev/bktr/bktr_audio.h> 85#endif 86 87/* 88 * Prototypes for the GV_BCTV2 specific functions. 89 */ 90void set_bctv2_audio( bktr_ptr_t bktr ); 91void bctv2_gpio_write( bktr_ptr_t bktr, int port, int val ); 92/*int bctv2_gpio_read( bktr_ptr_t bktr, int port );*/ /* Not used */ 93 94/* 95 * init_audio_devices 96 * Reset any MSP34xx or TDA98xx audio devices. 97 */ 98void init_audio_devices( bktr_ptr_t bktr ) { 99 100 /* enable stereo if appropriate on TDA audio chip */ 101 if ( bktr->card.dbx ) 102 init_BTSC( bktr ); 103 104 /* reset the MSP34xx stereo audio chip */ 105 if ( bktr->card.msp3400c ) 106 msp_dpl_reset( bktr, bktr->msp_addr ); 107 108 /* reset the DPL35xx dolby audio chip */ 109 if ( bktr->card.dpl3518a ) 110 msp_dpl_reset( bktr, bktr->dpl_addr ); 111 112} 113 114 115/* 116 * 117 */ 118#define AUDIOMUX_DISCOVER_NOT 119int 120set_audio( bktr_ptr_t bktr, int cmd ) 121{ 122 u_long temp; 123 volatile u_char idx; 124 125#if defined( AUDIOMUX_DISCOVER ) 126 if ( cmd >= 200 ) 127 cmd -= 200; 128 else 129#endif /* AUDIOMUX_DISCOVER */ 130 131 /* check for existance of audio MUXes */ 132 if ( !bktr->card.audiomuxs[ 4 ] ) 133 return( -1 ); 134 135 switch (cmd) { 136 case AUDIO_TUNER: 137#ifdef BKTR_REVERSEMUTE 138 bktr->audio_mux_select = 3; 139#else 140 bktr->audio_mux_select = 0; 141#endif 142 143 if (bktr->reverse_mute ) 144 bktr->audio_mux_select = 0; 145 else 146 bktr->audio_mux_select = 3; 147 148 break; 149 case AUDIO_EXTERN: 150 bktr->audio_mux_select = 1; 151 break; 152 case AUDIO_INTERN: 153 bktr->audio_mux_select = 2; 154 break; 155 case AUDIO_MUTE: 156 bktr->audio_mute_state = TRUE; /* set mute */ 157 break; 158 case AUDIO_UNMUTE: 159 bktr->audio_mute_state = FALSE; /* clear mute */ 160 break; 161 default: 162 printf("%s: audio cmd error %02x\n", bktr_name(bktr), 163 cmd); 164 return( -1 ); 165 } 166 167 168 /* Most cards have a simple audio multiplexer to select the 169 * audio source. The I/O_GV card has a more advanced multiplexer 170 * and requires special handling. 171 */ 172 if ( bktr->bt848_card == CARD_IO_BCTV2 ) { 173 set_bctv2_audio( bktr ); 174 return( 0 ); 175 } 176 177 /* Proceed with the simpler audio multiplexer code for the majority 178 * of Bt848 cards. 179 */ 180 181 /* 182 * Leave the upper bits of the GPIO port alone in case they control 183 * something like the dbx or teletext chips. This doesn't guarantee 184 * success, but follows the rule of least astonishment. 185 */ 186 187 if ( bktr->audio_mute_state == TRUE ) { 188#ifdef BKTR_REVERSEMUTE 189 idx = 0; 190#else 191 idx = 3; 192#endif 193 194 if (bktr->reverse_mute ) 195 idx = 3; 196 else 197 idx = 0; 198 199 } 200 else 201 idx = bktr->audio_mux_select; 202 203 204 temp = INL(bktr, BKTR_GPIO_DATA) & ~bktr->card.gpio_mux_bits; 205#if defined( AUDIOMUX_DISCOVER ) 206 OUTL(bktr, BKTR_GPIO_DATA, temp | (cmd & 0xff)); 207 printf("%s: cmd: %d audio mux %x temp %x \n", bktr_name(bktr), 208 cmd, bktr->card.audiomuxs[ idx ], temp ); 209#else 210 OUTL(bktr, BKTR_GPIO_DATA, temp | bktr->card.audiomuxs[ idx ]); 211#endif /* AUDIOMUX_DISCOVER */ 212 213 214 215 /* Some new Hauppauge cards do not have an audio mux */ 216 /* Instead we use the MSP34xx chip to select TV audio, Line-In */ 217 /* FM Radio and Mute */ 218 /* Examples of this are the Hauppauge 44xxx MSP34xx models */ 219 /* It is ok to drive both the mux and the MSP34xx chip. */ 220 /* If there is no mux, the MSP does the switching of the audio source */ 221 /* If there is a mux, it does the switching of the audio source */ 222 223 if ((bktr->card.msp3400c) && (bktr->audio_mux_present == 0)) { 224 225 if (bktr->audio_mute_state == TRUE ) { 226 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x0000); /* volume to MUTE */ 227 } else { 228 if(bktr->audio_mux_select == 0) { /* TV Tuner */ 229 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 230 if (bktr->msp_source_selected != 0) msp_autodetect(bktr); /* setup TV audio mode */ 231 bktr->msp_source_selected = 0; 232 } 233 if(bktr->audio_mux_select == 1) { /* Line In */ 234 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 235 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ 236 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ 237 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0000); /* DSP In = SC1_IN_L/R */ 238 bktr->msp_source_selected = 1; 239 } 240 241 if(bktr->audio_mux_select == 2) { /* FM Radio */ 242 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 243 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ 244 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ 245 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0200); /* DSP In = SC2_IN_L/R */ 246 bktr->msp_source_selected = 2; 247 } 248 } 249 } 250 251 252 return( 0 ); 253} 254 255 256/* 257 * 258 */ 259void 260temp_mute( bktr_ptr_t bktr, int flag ) 261{ 262 static int muteState = FALSE; 263 264 if ( flag == TRUE ) { 265 muteState = bktr->audio_mute_state; 266 set_audio( bktr, AUDIO_MUTE ); /* prevent 'click' */ 267 } 268 else { 269 tsleep( BKTR_SLEEP, PZERO, "tuning", hz/8 ); 270 if ( muteState == FALSE ) 271 set_audio( bktr, AUDIO_UNMUTE ); 272 } 273} 274 275/* address of BTSC/SAP decoder chip */ 276#define TDA9850_WADDR 0xb6 277#define TDA9850_RADDR 0xb7 278 279 280/* registers in the TDA9850 BTSC/dbx chip */ 281#define CON1ADDR 0x04 282#define CON2ADDR 0x05 283#define CON3ADDR 0x06 284#define CON4ADDR 0x07 285#define ALI1ADDR 0x08 286#define ALI2ADDR 0x09 287#define ALI3ADDR 0x0a 288 289/* 290 * initialise the dbx chip 291 * taken from the Linux bttv driver TDA9850 initialisation code 292 */ 293void 294init_BTSC( bktr_ptr_t bktr ) 295{ 296 i2cWrite(bktr, TDA9850_WADDR, CON1ADDR, 0x08); /* noise threshold st */ 297 i2cWrite(bktr, TDA9850_WADDR, CON2ADDR, 0x08); /* noise threshold sap */ 298 i2cWrite(bktr, TDA9850_WADDR, CON3ADDR, 0x40); /* stereo mode */ 299 i2cWrite(bktr, TDA9850_WADDR, CON4ADDR, 0x07); /* 0 dB input gain? */ 300 i2cWrite(bktr, TDA9850_WADDR, ALI1ADDR, 0x10); /* wideband alignment? */ 301 i2cWrite(bktr, TDA9850_WADDR, ALI2ADDR, 0x10); /* spectral alignment? */ 302 i2cWrite(bktr, TDA9850_WADDR, ALI3ADDR, 0x03); 303} 304 305/* 306 * setup the dbx chip 307 * XXX FIXME: alot of work to be done here, this merely unmutes it. 308 */ 309int 310set_BTSC( bktr_ptr_t bktr, int control ) 311{ 312 return( i2cWrite( bktr, TDA9850_WADDR, CON3ADDR, control ) ); 313} 314 315/* 316 * CARD_GV_BCTV2 specific functions. 317 */ 318 319#define BCTV2_AUDIO_MAIN 0x10 /* main audio program */ 320#define BCTV2_AUDIO_SUB 0x20 /* sub audio program */ 321#define BCTV2_AUDIO_BOTH 0x30 /* main(L) + sub(R) program */ 322 323#define BCTV2_GPIO_REG0 1 324#define BCTV2_GPIO_REG1 3 325 326#define BCTV2_GR0_AUDIO_MODE 3 327#define BCTV2_GR0_AUDIO_MAIN 0 /* main program */ 328#define BCTV2_GR0_AUDIO_SUB 3 /* sub program */ 329#define BCTV2_GR0_AUDIO_BOTH 1 /* main(L) + sub(R) */ 330#define BCTV2_GR0_AUDIO_MUTE 4 /* audio mute */ 331#define BCTV2_GR0_AUDIO_MONO 8 /* force mono */ 332 333void 334set_bctv2_audio( bktr_ptr_t bktr ) 335{ 336 int data; 337 338 switch (bktr->audio_mux_select) { 339 case 1: /* external */ 340 case 2: /* internal */ 341 bctv2_gpio_write(bktr, BCTV2_GPIO_REG1, 0); 342 break; 343 default: /* tuner */ 344 bctv2_gpio_write(bktr, BCTV2_GPIO_REG1, 1); 345 break; 346 } 347/* switch (bktr->audio_sap_select) { */ 348 switch (BCTV2_AUDIO_BOTH) { 349 case BCTV2_AUDIO_SUB: 350 data = BCTV2_GR0_AUDIO_SUB; 351 break; 352 case BCTV2_AUDIO_BOTH: 353 data = BCTV2_GR0_AUDIO_BOTH; 354 break; 355 case BCTV2_AUDIO_MAIN: 356 default: 357 data = BCTV2_GR0_AUDIO_MAIN; 358 break; 359 } 360 if (bktr->audio_mute_state == TRUE) 361 data |= BCTV2_GR0_AUDIO_MUTE; 362 363 bctv2_gpio_write(bktr, BCTV2_GPIO_REG0, data); 364 365 return; 366} 367 368/* gpio_data bit assignment */ 369#define BCTV2_GPIO_ADDR_MASK 0x000300 370#define BCTV2_GPIO_WE 0x000400 371#define BCTV2_GPIO_OE 0x000800 372#define BCTV2_GPIO_VAL_MASK 0x00f000 373 374#define BCTV2_GPIO_PORT_MASK 3 375#define BCTV2_GPIO_ADDR_SHIFT 8 376#define BCTV2_GPIO_VAL_SHIFT 12 377 378/* gpio_out_en value for read/write */ 379#define BCTV2_GPIO_OUT_RMASK 0x000f00 380#define BCTV2_GPIO_OUT_WMASK 0x00ff00 381 382#define BCTV2_BITS 100 383 384void 385bctv2_gpio_write( bktr_ptr_t bktr, int port, int val ) 386{ 387 u_long data, outbits; 388 389 port &= BCTV2_GPIO_PORT_MASK; 390 switch (port) { 391 case 1: 392 case 3: 393 data = ((val << BCTV2_GPIO_VAL_SHIFT) & BCTV2_GPIO_VAL_MASK) | 394 ((port << BCTV2_GPIO_ADDR_SHIFT) & BCTV2_GPIO_ADDR_MASK) | 395 BCTV2_GPIO_WE | BCTV2_GPIO_OE; 396 outbits = BCTV2_GPIO_OUT_WMASK; 397 break; 398 default: 399 return; 400 } 401 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 402 OUTL(bktr, BKTR_GPIO_DATA, data); 403 OUTL(bktr, BKTR_GPIO_OUT_EN, outbits); 404 DELAY(BCTV2_BITS); 405 OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV2_GPIO_WE); 406 DELAY(BCTV2_BITS); 407 OUTL(bktr, BKTR_GPIO_DATA, data); 408 DELAY(BCTV2_BITS); 409 OUTL(bktr, BKTR_GPIO_DATA, ~0); 410 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 411} 412 413/* Not yet used 414int 415bctv2_gpio_read( bktr_ptr_t bktr, int port ) 416{ 417 u_long data, outbits, ret; 418 419 port &= BCTV2_GPIO_PORT_MASK; 420 switch (port) { 421 case 1: 422 case 3: 423 data = ((port << BCTV2_GPIO_ADDR_SHIFT) & BCTV2_GPIO_ADDR_MASK) | 424 BCTV2_GPIO_WE | BCTV2_GPIO_OE; 425 outbits = BCTV2_GPIO_OUT_RMASK; 426 break; 427 default: 428 return( -1 ); 429 } 430 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 431 OUTL(bktr, BKTR_GPIO_DATA, data); 432 OUTL(bktr, BKTR_GPIO_OUT_EN, outbits); 433 DELAY(BCTV2_BITS); 434 OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV2_GPIO_OE); 435 DELAY(BCTV2_BITS); 436 ret = INL(bktr, BKTR_GPIO_DATA); 437 DELAY(BCTV2_BITS); 438 OUTL(bktr, BKTR_GPIO_DATA, data); 439 DELAY(BCTV2_BITS); 440 OUTL(bktr, BKTR_GPIO_DATA, ~0); 441 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 442 return( (ret & BCTV2_GPIO_VAL_MASK) >> BCTV2_GPIO_VAL_SHIFT ); 443} 444*/ 445 446/* 447 * setup the MSP34xx Stereo Audio Chip 448 * This uses the Auto Configuration Option on MSP3410D and MSP3415D chips 449 * and DBX mode selection for MSP3430G chips. 450 * For MSP3400C support, the full programming sequence is required and is 451 * not yet supported. 452 */ 453 454/* Read the MSP version string */ 455void msp_read_id( bktr_ptr_t bktr ){ 456 int rev1=0, rev2=0; 457 rev1 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001e); 458 rev2 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001f); 459 460 sprintf(bktr->msp_version_string, "34%02d%c-%c%d", 461 (rev2>>8)&0xff, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f); 462 463} 464 465 466/* Configure the MSP chip to Auto-detect the audio format. 467 * For the MSP3430G, we use fast autodetect mode 468 * For the MSP3410/3415 there are two schemes for this 469 * a) Fast autodetection - the chip is put into autodetect mode, and the function 470 * returns immediatly. This works in most cases and is the Default Mode. 471 * b) Slow mode. The function sets the MSP3410/3415 chip, then waits for feedback from 472 * the chip and re-programs it if needed. 473 */ 474void msp_autodetect( bktr_ptr_t bktr ) { 475 int auto_detect, loops; 476 int stereo; 477 478 /* MSP3430G - countries with mono and DBX stereo */ 479 if (strncmp("3430G", bktr->msp_version_string, 5) == 0){ 480 481 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0030,0x2003);/* Enable Auto format detection */ 482 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0020);/* Standard Select Reg. = BTSC-Stereo*/ 483 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000E,0x2403);/* darned if I know */ 484 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0320);/* Source select = (St or A) */ 485 /* & Ch. Matrix = St */ 486 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ 487 } 488 489 490 /* MSP3415D SPECIAL CASE Use the Tuner's Mono audio ouput for the MSP */ 491 /* (for Hauppauge 44xxx card with Tuner Type 0x2a) */ 492 else if ( ( (strncmp("3415D", bktr->msp_version_string, 5) == 0) 493 &&(bktr->msp_use_mono_source == 1) 494 ) 495 || (bktr->slow_msp_audio == 2) ){ 496 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 497 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ 498 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ 499 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0100); /* DSP In = MONO IN */ 500 } 501 502 503 /* MSP3410/MSP3415 - countries with mono, stereo using 2 FM channels and NICAM */ 504 /* FAST sound scheme */ 505 else if (bktr->slow_msp_audio == 0) { 506 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ 507 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Spkr Source = default(FM/AM) */ 508 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */ 509 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */ 510 } 511 512 513 /* MSP3410/MSP3415 - European Countries where the fast MSP3410/3415 programming fails */ 514 /* SLOW sound scheme */ 515 else if ( bktr->slow_msp_audio == 1) { 516 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ 517 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */ 518 519 /* wait for 0.5s max for terrestrial sound autodetection */ 520 loops = 10; 521 do { 522 DELAY(100000); 523 auto_detect = msp_dpl_read(bktr, bktr->msp_addr, 0x10, 0x007e); 524 loops++; 525 } while (auto_detect > 0xff && loops < 50); 526 if (bootverbose)printf ("%s: Result of autodetect after %dms: %d\n", 527 bktr_name(bktr), loops*10, auto_detect); 528 529 /* Now set the audio baseband processing */ 530 switch (auto_detect) { 531 case 0: /* no TV sound standard detected */ 532 break; 533 case 2: /* M Dual FM */ 534 break; 535 case 3: /* B/G Dual FM; German stereo */ 536 /* Read the stereo detection value from DSP reg 0x0018 */ 537 DELAY(20000); 538 stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); 539 if (bootverbose)printf ("%s: Stereo reg 0x18 a: %d\n", 540 bktr_name(bktr), stereo); 541 DELAY(20000); 542 stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); 543 if (bootverbose)printf ("%s: Stereo reg 0x18 b: %d\n", 544 bktr_name(bktr), stereo); 545 DELAY(20000); 546 stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); 547 if (bootverbose)printf ("%s: Stereo reg 0x18 c: %d\n", 548 bktr_name(bktr), stereo); 549 if (stereo > 0x0100 && stereo < 0x8000) { /* Seems to be stereo */ 550 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker set stereo*/ 551 /* 552 set spatial effect strength to 50% enlargement 553 set spatial effect mode b, stereo basewidth enlargment only 554 */ 555 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f28); 556 } else if (stereo > 0x8000) { /* bilingual mode */ 557 if (bootverbose) printf ("%s: Bilingual mode detected\n", 558 bktr_name(bktr)); 559 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Loudspeaker */ 560 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x0000);/* all spatial effects off */ 561 } else { /* must be mono */ 562 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0030);/* Loudspeaker */ 563 /* 564 set spatial effect strength to 50% enlargement 565 set spatial effect mode a, stereo basewidth enlargment 566 and pseudo stereo effect with automatic high-pass filter 567 */ 568 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f08); 569 } 570#if 0 571 /* The reset value for Channel matrix mode is FM/AM and SOUNDA/LEFT */ 572 /* We would like STEREO instead val: 0x0020 */ 573 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker */ 574 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0009,0x0020);/* Headphone */ 575 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000a,0x0020);/* SCART1 */ 576 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0041,0x0020);/* SCART2 */ 577 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000b,0x0020);/* I2S */ 578 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000c,0x0020);/* Quasi-Peak Detector Source */ 579 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000e,0x0001); 580#endif 581 break; 582 case 8: /* B/G FM NICAM */ 583 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */ 584 break; 585 case 9: /* L_AM NICAM or D/K*/ 586 case 10: /* i-FM NICAM */ 587 break; 588 default: 589 if (bootverbose) printf ("%s: Unknown autodetection result value: %d\n", 590 bktr_name(bktr), auto_detect); 591 } 592 593 } 594 595 596 /* uncomment the following line to enable the MSP34xx 1Khz Tone Generator */ 597 /* turn your speaker volume down low before trying this */ 598 /* msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0014, 0x7f40); */ 599} 600 601/* Read the DPL version string */ 602void dpl_read_id( bktr_ptr_t bktr ){ 603 int rev1=0, rev2=0; 604 rev1 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001e); 605 rev2 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001f); 606 607 sprintf(bktr->dpl_version_string, "34%02d%c-%c%d", 608 ((rev2>>8)&0xff)-1, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f); 609} 610 611/* Configure the DPL chip to Auto-detect the audio format */ 612void dpl_autodetect( bktr_ptr_t bktr ) { 613 614 /* The following are empiric values tried from the DPL35xx data sheet */ 615 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x000c,0x0320); /* quasi peak detector source dolby 616 lr 0x03xx; quasi peak detector matrix 617 stereo 0xXX20 */ 618 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0040,0x0060); /* Surround decoder mode; 619 ADAPTIVE/3D-PANORAMA, that means two 620 speakers and no center speaker, all 621 channels L/R/C/S mixed to L and R */ 622 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0041,0x0620); /* surround source matrix;I2S2/STEREO*/ 623 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0042,0x1F00); /* surround delay 31ms max */ 624 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0043,0x0000); /* automatic surround input balance */ 625 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0044,0x4000); /* surround spatial effect 50% 626 recommended*/ 627 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0045,0x5400); /* surround panorama effect 66% 628 recommended with PANORAMA mode 629 in 0x0040 set to panorama */ 630} 631 632