bktr_audio.c revision 119418
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 34#include <sys/cdefs.h> 35__FBSDID("$FreeBSD: head/sys/dev/bktr/bktr_audio.c 119418 2003-08-24 17:55:58Z obrien $"); 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_audio : This deals with controlling the audio on TV cards, 44 * controlling the Audio Multiplexer (audio source selector). 45 * controlling any MSP34xx stereo audio decoders. 46 * controlling any DPL35xx dolby surroud sound audio decoders. 47 * initialising TDA98xx audio devices. 48 * 49 */ 50 51#include "opt_bktr.h" /* Include any kernel config options */ 52 53#include <sys/param.h> 54#include <sys/systm.h> 55#include <sys/kernel.h> 56#include <sys/vnode.h> 57 58#ifdef __FreeBSD__ 59 60#if (__FreeBSD_version < 500000) 61#include <machine/clock.h> /* for DELAY */ 62#include <pci/pcivar.h> 63#else 64#include <dev/pci/pcivar.h> 65#endif 66 67#if (__FreeBSD_version >=300000) 68#include <machine/bus_memio.h> /* for bus space */ 69#include <machine/bus.h> 70#include <sys/bus.h> 71#endif 72#endif 73 74#ifdef __NetBSD__ 75#include <sys/proc.h> 76#include <dev/ic/bt8xx.h> /* NetBSD location of .h files */ 77#include <dev/pci/bktr/bktr_reg.h> 78#include <dev/pci/bktr/bktr_core.h> 79#include <dev/pci/bktr/bktr_tuner.h> 80#include <dev/pci/bktr/bktr_card.h> 81#include <dev/pci/bktr/bktr_audio.h> 82#else 83#include <machine/ioctl_meteor.h> /* Traditional location of .h files */ 84#include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 85#include <dev/bktr/bktr_reg.h> 86#include <dev/bktr/bktr_core.h> 87#include <dev/bktr/bktr_tuner.h> 88#include <dev/bktr/bktr_card.h> 89#include <dev/bktr/bktr_audio.h> 90#endif 91 92/* 93 * Prototypes for the GV_BCTV2 specific functions. 94 */ 95void set_bctv2_audio( bktr_ptr_t bktr ); 96void bctv2_gpio_write( bktr_ptr_t bktr, int port, int val ); 97/*int bctv2_gpio_read( bktr_ptr_t bktr, int port );*/ /* Not used */ 98 99/* 100 * init_audio_devices 101 * Reset any MSP34xx or TDA98xx audio devices. 102 */ 103void init_audio_devices( bktr_ptr_t bktr ) { 104 105 /* enable stereo if appropriate on TDA audio chip */ 106 if ( bktr->card.dbx ) 107 init_BTSC( bktr ); 108 109 /* reset the MSP34xx stereo audio chip */ 110 if ( bktr->card.msp3400c ) 111 msp_dpl_reset( bktr, bktr->msp_addr ); 112 113 /* reset the DPL35xx dolby audio chip */ 114 if ( bktr->card.dpl3518a ) 115 msp_dpl_reset( bktr, bktr->dpl_addr ); 116 117} 118 119 120/* 121 * 122 */ 123#define AUDIOMUX_DISCOVER_NOT 124int 125set_audio( bktr_ptr_t bktr, int cmd ) 126{ 127 u_long temp; 128 volatile u_char idx; 129 130#if defined( AUDIOMUX_DISCOVER ) 131 if ( cmd >= 200 ) 132 cmd -= 200; 133 else 134#endif /* AUDIOMUX_DISCOVER */ 135 136 /* check for existance of audio MUXes */ 137 if ( !bktr->card.audiomuxs[ 4 ] ) 138 return( -1 ); 139 140 switch (cmd) { 141 case AUDIO_TUNER: 142#ifdef BKTR_REVERSEMUTE 143 bktr->audio_mux_select = 3; 144#else 145 bktr->audio_mux_select = 0; 146#endif 147 148 if (bktr->reverse_mute ) 149 bktr->audio_mux_select = 0; 150 else 151 bktr->audio_mux_select = 3; 152 153 break; 154 case AUDIO_EXTERN: 155 bktr->audio_mux_select = 1; 156 break; 157 case AUDIO_INTERN: 158 bktr->audio_mux_select = 2; 159 break; 160 case AUDIO_MUTE: 161 bktr->audio_mute_state = TRUE; /* set mute */ 162 break; 163 case AUDIO_UNMUTE: 164 bktr->audio_mute_state = FALSE; /* clear mute */ 165 break; 166 default: 167 printf("%s: audio cmd error %02x\n", bktr_name(bktr), 168 cmd); 169 return( -1 ); 170 } 171 172 173 /* Most cards have a simple audio multiplexer to select the 174 * audio source. The I/O_GV card has a more advanced multiplexer 175 * and requires special handling. 176 */ 177 if ( bktr->bt848_card == CARD_IO_BCTV2 ) { 178 set_bctv2_audio( bktr ); 179 return( 0 ); 180 } 181 182 /* Proceed with the simpler audio multiplexer code for the majority 183 * of Bt848 cards. 184 */ 185 186 /* 187 * Leave the upper bits of the GPIO port alone in case they control 188 * something like the dbx or teletext chips. This doesn't guarantee 189 * success, but follows the rule of least astonishment. 190 */ 191 192 if ( bktr->audio_mute_state == TRUE ) { 193#ifdef BKTR_REVERSEMUTE 194 idx = 0; 195#else 196 idx = 3; 197#endif 198 199 if (bktr->reverse_mute ) 200 idx = 3; 201 else 202 idx = 0; 203 204 } 205 else 206 idx = bktr->audio_mux_select; 207 208 209 temp = INL(bktr, BKTR_GPIO_DATA) & ~bktr->card.gpio_mux_bits; 210#if defined( AUDIOMUX_DISCOVER ) 211 OUTL(bktr, BKTR_GPIO_DATA, temp | (cmd & 0xff)); 212 printf("%s: cmd: %d audio mux %x temp %x \n", bktr_name(bktr), 213 cmd, bktr->card.audiomuxs[ idx ], temp ); 214#else 215 OUTL(bktr, BKTR_GPIO_DATA, temp | bktr->card.audiomuxs[ idx ]); 216#endif /* AUDIOMUX_DISCOVER */ 217 218 219 220 /* Some new Hauppauge cards do not have an audio mux */ 221 /* Instead we use the MSP34xx chip to select TV audio, Line-In */ 222 /* FM Radio and Mute */ 223 /* Examples of this are the Hauppauge 44xxx MSP34xx models */ 224 /* It is ok to drive both the mux and the MSP34xx chip. */ 225 /* If there is no mux, the MSP does the switching of the audio source */ 226 /* If there is a mux, it does the switching of the audio source */ 227 228 if ((bktr->card.msp3400c) && (bktr->audio_mux_present == 0)) { 229 230 if (bktr->audio_mute_state == TRUE ) { 231 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x0000); /* volume to MUTE */ 232 } else { 233 if(bktr->audio_mux_select == 0) { /* TV Tuner */ 234 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 235 if (bktr->msp_source_selected != 0) msp_autodetect(bktr); /* setup TV audio mode */ 236 bktr->msp_source_selected = 0; 237 } 238 if(bktr->audio_mux_select == 1) { /* Line In */ 239 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 240 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ 241 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ 242 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0000); /* DSP In = SC1_IN_L/R */ 243 bktr->msp_source_selected = 1; 244 } 245 246 if(bktr->audio_mux_select == 2) { /* FM Radio */ 247 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 248 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ 249 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ 250 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0200); /* DSP In = SC2_IN_L/R */ 251 bktr->msp_source_selected = 2; 252 } 253 } 254 } 255 256 257 return( 0 ); 258} 259 260 261/* 262 * 263 */ 264void 265temp_mute( bktr_ptr_t bktr, int flag ) 266{ 267 static int muteState = FALSE; 268 269 if ( flag == TRUE ) { 270 muteState = bktr->audio_mute_state; 271 set_audio( bktr, AUDIO_MUTE ); /* prevent 'click' */ 272 } 273 else { 274 tsleep( BKTR_SLEEP, PZERO, "tuning", hz/8 ); 275 if ( muteState == FALSE ) 276 set_audio( bktr, AUDIO_UNMUTE ); 277 } 278} 279 280/* address of BTSC/SAP decoder chip */ 281#define TDA9850_WADDR 0xb6 282#define TDA9850_RADDR 0xb7 283 284 285/* registers in the TDA9850 BTSC/dbx chip */ 286#define CON1ADDR 0x04 287#define CON2ADDR 0x05 288#define CON3ADDR 0x06 289#define CON4ADDR 0x07 290#define ALI1ADDR 0x08 291#define ALI2ADDR 0x09 292#define ALI3ADDR 0x0a 293 294/* 295 * initialise the dbx chip 296 * taken from the Linux bttv driver TDA9850 initialisation code 297 */ 298void 299init_BTSC( bktr_ptr_t bktr ) 300{ 301 i2cWrite(bktr, TDA9850_WADDR, CON1ADDR, 0x08); /* noise threshold st */ 302 i2cWrite(bktr, TDA9850_WADDR, CON2ADDR, 0x08); /* noise threshold sap */ 303 i2cWrite(bktr, TDA9850_WADDR, CON3ADDR, 0x40); /* stereo mode */ 304 i2cWrite(bktr, TDA9850_WADDR, CON4ADDR, 0x07); /* 0 dB input gain? */ 305 i2cWrite(bktr, TDA9850_WADDR, ALI1ADDR, 0x10); /* wideband alignment? */ 306 i2cWrite(bktr, TDA9850_WADDR, ALI2ADDR, 0x10); /* spectral alignment? */ 307 i2cWrite(bktr, TDA9850_WADDR, ALI3ADDR, 0x03); 308} 309 310/* 311 * setup the dbx chip 312 * XXX FIXME: alot of work to be done here, this merely unmutes it. 313 */ 314int 315set_BTSC( bktr_ptr_t bktr, int control ) 316{ 317 return( i2cWrite( bktr, TDA9850_WADDR, CON3ADDR, control ) ); 318} 319 320/* 321 * CARD_GV_BCTV2 specific functions. 322 */ 323 324#define BCTV2_AUDIO_MAIN 0x10 /* main audio program */ 325#define BCTV2_AUDIO_SUB 0x20 /* sub audio program */ 326#define BCTV2_AUDIO_BOTH 0x30 /* main(L) + sub(R) program */ 327 328#define BCTV2_GPIO_REG0 1 329#define BCTV2_GPIO_REG1 3 330 331#define BCTV2_GR0_AUDIO_MODE 3 332#define BCTV2_GR0_AUDIO_MAIN 0 /* main program */ 333#define BCTV2_GR0_AUDIO_SUB 3 /* sub program */ 334#define BCTV2_GR0_AUDIO_BOTH 1 /* main(L) + sub(R) */ 335#define BCTV2_GR0_AUDIO_MUTE 4 /* audio mute */ 336#define BCTV2_GR0_AUDIO_MONO 8 /* force mono */ 337 338void 339set_bctv2_audio( bktr_ptr_t bktr ) 340{ 341 int data; 342 343 switch (bktr->audio_mux_select) { 344 case 1: /* external */ 345 case 2: /* internal */ 346 bctv2_gpio_write(bktr, BCTV2_GPIO_REG1, 0); 347 break; 348 default: /* tuner */ 349 bctv2_gpio_write(bktr, BCTV2_GPIO_REG1, 1); 350 break; 351 } 352/* switch (bktr->audio_sap_select) { */ 353 switch (BCTV2_AUDIO_BOTH) { 354 case BCTV2_AUDIO_SUB: 355 data = BCTV2_GR0_AUDIO_SUB; 356 break; 357 case BCTV2_AUDIO_BOTH: 358 data = BCTV2_GR0_AUDIO_BOTH; 359 break; 360 case BCTV2_AUDIO_MAIN: 361 default: 362 data = BCTV2_GR0_AUDIO_MAIN; 363 break; 364 } 365 if (bktr->audio_mute_state == TRUE) 366 data |= BCTV2_GR0_AUDIO_MUTE; 367 368 bctv2_gpio_write(bktr, BCTV2_GPIO_REG0, data); 369 370 return; 371} 372 373/* gpio_data bit assignment */ 374#define BCTV2_GPIO_ADDR_MASK 0x000300 375#define BCTV2_GPIO_WE 0x000400 376#define BCTV2_GPIO_OE 0x000800 377#define BCTV2_GPIO_VAL_MASK 0x00f000 378 379#define BCTV2_GPIO_PORT_MASK 3 380#define BCTV2_GPIO_ADDR_SHIFT 8 381#define BCTV2_GPIO_VAL_SHIFT 12 382 383/* gpio_out_en value for read/write */ 384#define BCTV2_GPIO_OUT_RMASK 0x000f00 385#define BCTV2_GPIO_OUT_WMASK 0x00ff00 386 387#define BCTV2_BITS 100 388 389void 390bctv2_gpio_write( bktr_ptr_t bktr, int port, int val ) 391{ 392 u_long data, outbits; 393 394 port &= BCTV2_GPIO_PORT_MASK; 395 switch (port) { 396 case 1: 397 case 3: 398 data = ((val << BCTV2_GPIO_VAL_SHIFT) & BCTV2_GPIO_VAL_MASK) | 399 ((port << BCTV2_GPIO_ADDR_SHIFT) & BCTV2_GPIO_ADDR_MASK) | 400 BCTV2_GPIO_WE | BCTV2_GPIO_OE; 401 outbits = BCTV2_GPIO_OUT_WMASK; 402 break; 403 default: 404 return; 405 } 406 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 407 OUTL(bktr, BKTR_GPIO_DATA, data); 408 OUTL(bktr, BKTR_GPIO_OUT_EN, outbits); 409 DELAY(BCTV2_BITS); 410 OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV2_GPIO_WE); 411 DELAY(BCTV2_BITS); 412 OUTL(bktr, BKTR_GPIO_DATA, data); 413 DELAY(BCTV2_BITS); 414 OUTL(bktr, BKTR_GPIO_DATA, ~0); 415 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 416} 417 418/* Not yet used 419int 420bctv2_gpio_read( bktr_ptr_t bktr, int port ) 421{ 422 u_long data, outbits, ret; 423 424 port &= BCTV2_GPIO_PORT_MASK; 425 switch (port) { 426 case 1: 427 case 3: 428 data = ((port << BCTV2_GPIO_ADDR_SHIFT) & BCTV2_GPIO_ADDR_MASK) | 429 BCTV2_GPIO_WE | BCTV2_GPIO_OE; 430 outbits = BCTV2_GPIO_OUT_RMASK; 431 break; 432 default: 433 return( -1 ); 434 } 435 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 436 OUTL(bktr, BKTR_GPIO_DATA, data); 437 OUTL(bktr, BKTR_GPIO_OUT_EN, outbits); 438 DELAY(BCTV2_BITS); 439 OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV2_GPIO_OE); 440 DELAY(BCTV2_BITS); 441 ret = INL(bktr, BKTR_GPIO_DATA); 442 DELAY(BCTV2_BITS); 443 OUTL(bktr, BKTR_GPIO_DATA, data); 444 DELAY(BCTV2_BITS); 445 OUTL(bktr, BKTR_GPIO_DATA, ~0); 446 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 447 return( (ret & BCTV2_GPIO_VAL_MASK) >> BCTV2_GPIO_VAL_SHIFT ); 448} 449*/ 450 451/* 452 * setup the MSP34xx Stereo Audio Chip 453 * This uses the Auto Configuration Option on MSP3410D and MSP3415D chips 454 * and DBX mode selection for MSP3430G chips. 455 * For MSP3400C support, the full programming sequence is required and is 456 * not yet supported. 457 */ 458 459/* Read the MSP version string */ 460void msp_read_id( bktr_ptr_t bktr ){ 461 int rev1=0, rev2=0; 462 rev1 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001e); 463 rev2 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001f); 464 465 sprintf(bktr->msp_version_string, "34%02d%c-%c%d", 466 (rev2>>8)&0xff, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f); 467 468} 469 470 471/* Configure the MSP chip to Auto-detect the audio format. 472 * For the MSP3430G, we use fast autodetect mode 473 * For the MSP3410/3415 there are two schemes for this 474 * a) Fast autodetection - the chip is put into autodetect mode, and the function 475 * returns immediatly. This works in most cases and is the Default Mode. 476 * b) Slow mode. The function sets the MSP3410/3415 chip, then waits for feedback from 477 * the chip and re-programs it if needed. 478 */ 479void msp_autodetect( bktr_ptr_t bktr ) { 480 481#ifdef BKTR_NEW_MSP34XX_DRIVER 482 483 /* Just wake up the (maybe) sleeping thread, it'll do everything for us */ 484 msp_wake_thread(bktr); 485 486#else 487 int auto_detect, loops; 488 int stereo; 489 490 /* MSP3430G - countries with mono and DBX stereo */ 491 if (strncmp("3430G", bktr->msp_version_string, 5) == 0){ 492 493 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0030,0x2003);/* Enable Auto format detection */ 494 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0020);/* Standard Select Reg. = BTSC-Stereo*/ 495 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000E,0x2403);/* darned if I know */ 496 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0320);/* Source select = (St or A) */ 497 /* & Ch. Matrix = St */ 498 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ 499 } 500 501 502 /* MSP3415D SPECIAL CASE Use the Tuner's Mono audio ouput for the MSP */ 503 /* (for Hauppauge 44xxx card with Tuner Type 0x2a) */ 504 else if ( ( (strncmp("3415D", bktr->msp_version_string, 5) == 0) 505 &&(bktr->msp_use_mono_source == 1) 506 ) 507 || (bktr->slow_msp_audio == 2) ){ 508 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 509 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ 510 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ 511 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0100); /* DSP In = MONO IN */ 512 } 513 514 515 /* MSP3410/MSP3415 - countries with mono, stereo using 2 FM channels and NICAM */ 516 /* FAST sound scheme */ 517 else if (bktr->slow_msp_audio == 0) { 518 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ 519 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Spkr Source = default(FM/AM) */ 520 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */ 521 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */ 522 } 523 524 525 /* MSP3410/MSP3415 - European Countries where the fast MSP3410/3415 programming fails */ 526 /* SLOW sound scheme */ 527 else if ( bktr->slow_msp_audio == 1) { 528 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ 529 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */ 530 531 /* wait for 0.5s max for terrestrial sound autodetection */ 532 loops = 10; 533 do { 534 DELAY(100000); 535 auto_detect = msp_dpl_read(bktr, bktr->msp_addr, 0x10, 0x007e); 536 loops++; 537 } while (auto_detect > 0xff && loops < 50); 538 if (bootverbose)printf ("%s: Result of autodetect after %dms: %d\n", 539 bktr_name(bktr), loops*10, auto_detect); 540 541 /* Now set the audio baseband processing */ 542 switch (auto_detect) { 543 case 0: /* no TV sound standard detected */ 544 break; 545 case 2: /* M Dual FM */ 546 break; 547 case 3: /* B/G Dual FM; German stereo */ 548 /* Read the stereo detection value from DSP reg 0x0018 */ 549 DELAY(20000); 550 stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); 551 if (bootverbose)printf ("%s: Stereo reg 0x18 a: %d\n", 552 bktr_name(bktr), stereo); 553 DELAY(20000); 554 stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); 555 if (bootverbose)printf ("%s: Stereo reg 0x18 b: %d\n", 556 bktr_name(bktr), stereo); 557 DELAY(20000); 558 stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); 559 if (bootverbose)printf ("%s: Stereo reg 0x18 c: %d\n", 560 bktr_name(bktr), stereo); 561 if (stereo > 0x0100 && stereo < 0x8000) { /* Seems to be stereo */ 562 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker set stereo*/ 563 /* 564 set spatial effect strength to 50% enlargement 565 set spatial effect mode b, stereo basewidth enlargment only 566 */ 567 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f28); 568 } else if (stereo > 0x8000) { /* bilingual mode */ 569 if (bootverbose) printf ("%s: Bilingual mode detected\n", 570 bktr_name(bktr)); 571 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Loudspeaker */ 572 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x0000);/* all spatial effects off */ 573 } else { /* must be mono */ 574 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0030);/* Loudspeaker */ 575 /* 576 set spatial effect strength to 50% enlargement 577 set spatial effect mode a, stereo basewidth enlargment 578 and pseudo stereo effect with automatic high-pass filter 579 */ 580 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f08); 581 } 582#if 0 583 /* The reset value for Channel matrix mode is FM/AM and SOUNDA/LEFT */ 584 /* We would like STEREO instead val: 0x0020 */ 585 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker */ 586 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0009,0x0020);/* Headphone */ 587 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000a,0x0020);/* SCART1 */ 588 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0041,0x0020);/* SCART2 */ 589 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000b,0x0020);/* I2S */ 590 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000c,0x0020);/* Quasi-Peak Detector Source */ 591 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000e,0x0001); 592#endif 593 break; 594 case 8: /* B/G FM NICAM */ 595 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */ 596 break; 597 case 9: /* L_AM NICAM or D/K*/ 598 case 10: /* i-FM NICAM */ 599 break; 600 default: 601 if (bootverbose) printf ("%s: Unknown autodetection result value: %d\n", 602 bktr_name(bktr), auto_detect); 603 } 604 605 } 606 607 608 /* uncomment the following line to enable the MSP34xx 1Khz Tone Generator */ 609 /* turn your speaker volume down low before trying this */ 610 /* msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0014, 0x7f40); */ 611 612#endif /* BKTR_NEW_MSP34XX_DRIVER */ 613} 614 615/* Read the DPL version string */ 616void dpl_read_id( bktr_ptr_t bktr ){ 617 int rev1=0, rev2=0; 618 rev1 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001e); 619 rev2 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001f); 620 621 sprintf(bktr->dpl_version_string, "34%02d%c-%c%d", 622 ((rev2>>8)&0xff)-1, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f); 623} 624 625/* Configure the DPL chip to Auto-detect the audio format */ 626void dpl_autodetect( bktr_ptr_t bktr ) { 627 628 /* The following are empiric values tried from the DPL35xx data sheet */ 629 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x000c,0x0320); /* quasi peak detector source dolby 630 lr 0x03xx; quasi peak detector matrix 631 stereo 0xXX20 */ 632 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0040,0x0060); /* Surround decoder mode; 633 ADAPTIVE/3D-PANORAMA, that means two 634 speakers and no center speaker, all 635 channels L/R/C/S mixed to L and R */ 636 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0041,0x0620); /* surround source matrix;I2S2/STEREO*/ 637 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0042,0x1F00); /* surround delay 31ms max */ 638 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0043,0x0000); /* automatic surround input balance */ 639 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0044,0x4000); /* surround spatial effect 50% 640 recommended*/ 641 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0045,0x5400); /* surround panorama effect 66% 642 recommended with PANORAMA mode 643 in 0x0040 set to panorama */ 644} 645 646