bktr_audio.c revision 119277
1/* $FreeBSD: head/sys/dev/bktr/bktr_audio.c 119277 2003-08-22 05:54:52Z imp $ */ 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 "opt_bktr.h" /* Include any kernel config options */ 50 51#include <sys/param.h> 52#include <sys/systm.h> 53#include <sys/kernel.h> 54#include <sys/vnode.h> 55 56#ifdef __FreeBSD__ 57 58#if (__FreeBSD_version < 500000) 59#include <machine/clock.h> /* for DELAY */ 60#include <pci/pcivar.h> 61#else 62#include <dev/pci/pcivar.h> 63#endif 64 65#if (__FreeBSD_version >=300000) 66#include <machine/bus_memio.h> /* for bus space */ 67#include <machine/bus.h> 68#include <sys/bus.h> 69#endif 70#endif 71 72#ifdef __NetBSD__ 73#include <sys/proc.h> 74#include <dev/ic/bt8xx.h> /* NetBSD location of .h files */ 75#include <dev/pci/bktr/bktr_reg.h> 76#include <dev/pci/bktr/bktr_core.h> 77#include <dev/pci/bktr/bktr_tuner.h> 78#include <dev/pci/bktr/bktr_card.h> 79#include <dev/pci/bktr/bktr_audio.h> 80#else 81#include <machine/ioctl_meteor.h> /* Traditional location of .h files */ 82#include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 83#include <dev/bktr/bktr_reg.h> 84#include <dev/bktr/bktr_core.h> 85#include <dev/bktr/bktr_tuner.h> 86#include <dev/bktr/bktr_card.h> 87#include <dev/bktr/bktr_audio.h> 88#endif 89 90/* 91 * Prototypes for the GV_BCTV2 specific functions. 92 */ 93void set_bctv2_audio( bktr_ptr_t bktr ); 94void bctv2_gpio_write( bktr_ptr_t bktr, int port, int val ); 95/*int bctv2_gpio_read( bktr_ptr_t bktr, int port );*/ /* Not used */ 96 97/* 98 * init_audio_devices 99 * Reset any MSP34xx or TDA98xx audio devices. 100 */ 101void init_audio_devices( bktr_ptr_t bktr ) { 102 103 /* enable stereo if appropriate on TDA audio chip */ 104 if ( bktr->card.dbx ) 105 init_BTSC( bktr ); 106 107 /* reset the MSP34xx stereo audio chip */ 108 if ( bktr->card.msp3400c ) 109 msp_dpl_reset( bktr, bktr->msp_addr ); 110 111 /* reset the DPL35xx dolby audio chip */ 112 if ( bktr->card.dpl3518a ) 113 msp_dpl_reset( bktr, bktr->dpl_addr ); 114 115} 116 117 118/* 119 * 120 */ 121#define AUDIOMUX_DISCOVER_NOT 122int 123set_audio( bktr_ptr_t bktr, int cmd ) 124{ 125 u_long temp; 126 volatile u_char idx; 127 128#if defined( AUDIOMUX_DISCOVER ) 129 if ( cmd >= 200 ) 130 cmd -= 200; 131 else 132#endif /* AUDIOMUX_DISCOVER */ 133 134 /* check for existance of audio MUXes */ 135 if ( !bktr->card.audiomuxs[ 4 ] ) 136 return( -1 ); 137 138 switch (cmd) { 139 case AUDIO_TUNER: 140#ifdef BKTR_REVERSEMUTE 141 bktr->audio_mux_select = 3; 142#else 143 bktr->audio_mux_select = 0; 144#endif 145 146 if (bktr->reverse_mute ) 147 bktr->audio_mux_select = 0; 148 else 149 bktr->audio_mux_select = 3; 150 151 break; 152 case AUDIO_EXTERN: 153 bktr->audio_mux_select = 1; 154 break; 155 case AUDIO_INTERN: 156 bktr->audio_mux_select = 2; 157 break; 158 case AUDIO_MUTE: 159 bktr->audio_mute_state = TRUE; /* set mute */ 160 break; 161 case AUDIO_UNMUTE: 162 bktr->audio_mute_state = FALSE; /* clear mute */ 163 break; 164 default: 165 printf("%s: audio cmd error %02x\n", bktr_name(bktr), 166 cmd); 167 return( -1 ); 168 } 169 170 171 /* Most cards have a simple audio multiplexer to select the 172 * audio source. The I/O_GV card has a more advanced multiplexer 173 * and requires special handling. 174 */ 175 if ( bktr->bt848_card == CARD_IO_BCTV2 ) { 176 set_bctv2_audio( bktr ); 177 return( 0 ); 178 } 179 180 /* Proceed with the simpler audio multiplexer code for the majority 181 * of Bt848 cards. 182 */ 183 184 /* 185 * Leave the upper bits of the GPIO port alone in case they control 186 * something like the dbx or teletext chips. This doesn't guarantee 187 * success, but follows the rule of least astonishment. 188 */ 189 190 if ( bktr->audio_mute_state == TRUE ) { 191#ifdef BKTR_REVERSEMUTE 192 idx = 0; 193#else 194 idx = 3; 195#endif 196 197 if (bktr->reverse_mute ) 198 idx = 3; 199 else 200 idx = 0; 201 202 } 203 else 204 idx = bktr->audio_mux_select; 205 206 207 temp = INL(bktr, BKTR_GPIO_DATA) & ~bktr->card.gpio_mux_bits; 208#if defined( AUDIOMUX_DISCOVER ) 209 OUTL(bktr, BKTR_GPIO_DATA, temp | (cmd & 0xff)); 210 printf("%s: cmd: %d audio mux %x temp %x \n", bktr_name(bktr), 211 cmd, bktr->card.audiomuxs[ idx ], temp ); 212#else 213 OUTL(bktr, BKTR_GPIO_DATA, temp | bktr->card.audiomuxs[ idx ]); 214#endif /* AUDIOMUX_DISCOVER */ 215 216 217 218 /* Some new Hauppauge cards do not have an audio mux */ 219 /* Instead we use the MSP34xx chip to select TV audio, Line-In */ 220 /* FM Radio and Mute */ 221 /* Examples of this are the Hauppauge 44xxx MSP34xx models */ 222 /* It is ok to drive both the mux and the MSP34xx chip. */ 223 /* If there is no mux, the MSP does the switching of the audio source */ 224 /* If there is a mux, it does the switching of the audio source */ 225 226 if ((bktr->card.msp3400c) && (bktr->audio_mux_present == 0)) { 227 228 if (bktr->audio_mute_state == TRUE ) { 229 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x0000); /* volume to MUTE */ 230 } else { 231 if(bktr->audio_mux_select == 0) { /* TV Tuner */ 232 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 233 if (bktr->msp_source_selected != 0) msp_autodetect(bktr); /* setup TV audio mode */ 234 bktr->msp_source_selected = 0; 235 } 236 if(bktr->audio_mux_select == 1) { /* Line In */ 237 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 238 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ 239 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ 240 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0000); /* DSP In = SC1_IN_L/R */ 241 bktr->msp_source_selected = 1; 242 } 243 244 if(bktr->audio_mux_select == 2) { /* FM Radio */ 245 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 246 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ 247 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ 248 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0200); /* DSP In = SC2_IN_L/R */ 249 bktr->msp_source_selected = 2; 250 } 251 } 252 } 253 254 255 return( 0 ); 256} 257 258 259/* 260 * 261 */ 262void 263temp_mute( bktr_ptr_t bktr, int flag ) 264{ 265 static int muteState = FALSE; 266 267 if ( flag == TRUE ) { 268 muteState = bktr->audio_mute_state; 269 set_audio( bktr, AUDIO_MUTE ); /* prevent 'click' */ 270 } 271 else { 272 tsleep( BKTR_SLEEP, PZERO, "tuning", hz/8 ); 273 if ( muteState == FALSE ) 274 set_audio( bktr, AUDIO_UNMUTE ); 275 } 276} 277 278/* address of BTSC/SAP decoder chip */ 279#define TDA9850_WADDR 0xb6 280#define TDA9850_RADDR 0xb7 281 282 283/* registers in the TDA9850 BTSC/dbx chip */ 284#define CON1ADDR 0x04 285#define CON2ADDR 0x05 286#define CON3ADDR 0x06 287#define CON4ADDR 0x07 288#define ALI1ADDR 0x08 289#define ALI2ADDR 0x09 290#define ALI3ADDR 0x0a 291 292/* 293 * initialise the dbx chip 294 * taken from the Linux bttv driver TDA9850 initialisation code 295 */ 296void 297init_BTSC( bktr_ptr_t bktr ) 298{ 299 i2cWrite(bktr, TDA9850_WADDR, CON1ADDR, 0x08); /* noise threshold st */ 300 i2cWrite(bktr, TDA9850_WADDR, CON2ADDR, 0x08); /* noise threshold sap */ 301 i2cWrite(bktr, TDA9850_WADDR, CON3ADDR, 0x40); /* stereo mode */ 302 i2cWrite(bktr, TDA9850_WADDR, CON4ADDR, 0x07); /* 0 dB input gain? */ 303 i2cWrite(bktr, TDA9850_WADDR, ALI1ADDR, 0x10); /* wideband alignment? */ 304 i2cWrite(bktr, TDA9850_WADDR, ALI2ADDR, 0x10); /* spectral alignment? */ 305 i2cWrite(bktr, TDA9850_WADDR, ALI3ADDR, 0x03); 306} 307 308/* 309 * setup the dbx chip 310 * XXX FIXME: alot of work to be done here, this merely unmutes it. 311 */ 312int 313set_BTSC( bktr_ptr_t bktr, int control ) 314{ 315 return( i2cWrite( bktr, TDA9850_WADDR, CON3ADDR, control ) ); 316} 317 318/* 319 * CARD_GV_BCTV2 specific functions. 320 */ 321 322#define BCTV2_AUDIO_MAIN 0x10 /* main audio program */ 323#define BCTV2_AUDIO_SUB 0x20 /* sub audio program */ 324#define BCTV2_AUDIO_BOTH 0x30 /* main(L) + sub(R) program */ 325 326#define BCTV2_GPIO_REG0 1 327#define BCTV2_GPIO_REG1 3 328 329#define BCTV2_GR0_AUDIO_MODE 3 330#define BCTV2_GR0_AUDIO_MAIN 0 /* main program */ 331#define BCTV2_GR0_AUDIO_SUB 3 /* sub program */ 332#define BCTV2_GR0_AUDIO_BOTH 1 /* main(L) + sub(R) */ 333#define BCTV2_GR0_AUDIO_MUTE 4 /* audio mute */ 334#define BCTV2_GR0_AUDIO_MONO 8 /* force mono */ 335 336void 337set_bctv2_audio( bktr_ptr_t bktr ) 338{ 339 int data; 340 341 switch (bktr->audio_mux_select) { 342 case 1: /* external */ 343 case 2: /* internal */ 344 bctv2_gpio_write(bktr, BCTV2_GPIO_REG1, 0); 345 break; 346 default: /* tuner */ 347 bctv2_gpio_write(bktr, BCTV2_GPIO_REG1, 1); 348 break; 349 } 350/* switch (bktr->audio_sap_select) { */ 351 switch (BCTV2_AUDIO_BOTH) { 352 case BCTV2_AUDIO_SUB: 353 data = BCTV2_GR0_AUDIO_SUB; 354 break; 355 case BCTV2_AUDIO_BOTH: 356 data = BCTV2_GR0_AUDIO_BOTH; 357 break; 358 case BCTV2_AUDIO_MAIN: 359 default: 360 data = BCTV2_GR0_AUDIO_MAIN; 361 break; 362 } 363 if (bktr->audio_mute_state == TRUE) 364 data |= BCTV2_GR0_AUDIO_MUTE; 365 366 bctv2_gpio_write(bktr, BCTV2_GPIO_REG0, data); 367 368 return; 369} 370 371/* gpio_data bit assignment */ 372#define BCTV2_GPIO_ADDR_MASK 0x000300 373#define BCTV2_GPIO_WE 0x000400 374#define BCTV2_GPIO_OE 0x000800 375#define BCTV2_GPIO_VAL_MASK 0x00f000 376 377#define BCTV2_GPIO_PORT_MASK 3 378#define BCTV2_GPIO_ADDR_SHIFT 8 379#define BCTV2_GPIO_VAL_SHIFT 12 380 381/* gpio_out_en value for read/write */ 382#define BCTV2_GPIO_OUT_RMASK 0x000f00 383#define BCTV2_GPIO_OUT_WMASK 0x00ff00 384 385#define BCTV2_BITS 100 386 387void 388bctv2_gpio_write( bktr_ptr_t bktr, int port, int val ) 389{ 390 u_long data, outbits; 391 392 port &= BCTV2_GPIO_PORT_MASK; 393 switch (port) { 394 case 1: 395 case 3: 396 data = ((val << BCTV2_GPIO_VAL_SHIFT) & BCTV2_GPIO_VAL_MASK) | 397 ((port << BCTV2_GPIO_ADDR_SHIFT) & BCTV2_GPIO_ADDR_MASK) | 398 BCTV2_GPIO_WE | BCTV2_GPIO_OE; 399 outbits = BCTV2_GPIO_OUT_WMASK; 400 break; 401 default: 402 return; 403 } 404 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 405 OUTL(bktr, BKTR_GPIO_DATA, data); 406 OUTL(bktr, BKTR_GPIO_OUT_EN, outbits); 407 DELAY(BCTV2_BITS); 408 OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV2_GPIO_WE); 409 DELAY(BCTV2_BITS); 410 OUTL(bktr, BKTR_GPIO_DATA, data); 411 DELAY(BCTV2_BITS); 412 OUTL(bktr, BKTR_GPIO_DATA, ~0); 413 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 414} 415 416/* Not yet used 417int 418bctv2_gpio_read( bktr_ptr_t bktr, int port ) 419{ 420 u_long data, outbits, ret; 421 422 port &= BCTV2_GPIO_PORT_MASK; 423 switch (port) { 424 case 1: 425 case 3: 426 data = ((port << BCTV2_GPIO_ADDR_SHIFT) & BCTV2_GPIO_ADDR_MASK) | 427 BCTV2_GPIO_WE | BCTV2_GPIO_OE; 428 outbits = BCTV2_GPIO_OUT_RMASK; 429 break; 430 default: 431 return( -1 ); 432 } 433 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 434 OUTL(bktr, BKTR_GPIO_DATA, data); 435 OUTL(bktr, BKTR_GPIO_OUT_EN, outbits); 436 DELAY(BCTV2_BITS); 437 OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV2_GPIO_OE); 438 DELAY(BCTV2_BITS); 439 ret = INL(bktr, BKTR_GPIO_DATA); 440 DELAY(BCTV2_BITS); 441 OUTL(bktr, BKTR_GPIO_DATA, data); 442 DELAY(BCTV2_BITS); 443 OUTL(bktr, BKTR_GPIO_DATA, ~0); 444 OUTL(bktr, BKTR_GPIO_OUT_EN, 0); 445 return( (ret & BCTV2_GPIO_VAL_MASK) >> BCTV2_GPIO_VAL_SHIFT ); 446} 447*/ 448 449/* 450 * setup the MSP34xx Stereo Audio Chip 451 * This uses the Auto Configuration Option on MSP3410D and MSP3415D chips 452 * and DBX mode selection for MSP3430G chips. 453 * For MSP3400C support, the full programming sequence is required and is 454 * not yet supported. 455 */ 456 457/* Read the MSP version string */ 458void msp_read_id( bktr_ptr_t bktr ){ 459 int rev1=0, rev2=0; 460 rev1 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001e); 461 rev2 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001f); 462 463 sprintf(bktr->msp_version_string, "34%02d%c-%c%d", 464 (rev2>>8)&0xff, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f); 465 466} 467 468 469/* Configure the MSP chip to Auto-detect the audio format. 470 * For the MSP3430G, we use fast autodetect mode 471 * For the MSP3410/3415 there are two schemes for this 472 * a) Fast autodetection - the chip is put into autodetect mode, and the function 473 * returns immediatly. This works in most cases and is the Default Mode. 474 * b) Slow mode. The function sets the MSP3410/3415 chip, then waits for feedback from 475 * the chip and re-programs it if needed. 476 */ 477void msp_autodetect( bktr_ptr_t bktr ) { 478 479#ifdef BKTR_NEW_MSP34XX_DRIVER 480 481 /* Just wake up the (maybe) sleeping thread, it'll do everything for us */ 482 msp_wake_thread(bktr); 483 484#else 485 int auto_detect, loops; 486 int stereo; 487 488 /* MSP3430G - countries with mono and DBX stereo */ 489 if (strncmp("3430G", bktr->msp_version_string, 5) == 0){ 490 491 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0030,0x2003);/* Enable Auto format detection */ 492 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0020);/* Standard Select Reg. = BTSC-Stereo*/ 493 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000E,0x2403);/* darned if I know */ 494 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0320);/* Source select = (St or A) */ 495 /* & Ch. Matrix = St */ 496 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ 497 } 498 499 500 /* MSP3415D SPECIAL CASE Use the Tuner's Mono audio ouput for the MSP */ 501 /* (for Hauppauge 44xxx card with Tuner Type 0x2a) */ 502 else if ( ( (strncmp("3415D", bktr->msp_version_string, 5) == 0) 503 &&(bktr->msp_use_mono_source == 1) 504 ) 505 || (bktr->slow_msp_audio == 2) ){ 506 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */ 507 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */ 508 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */ 509 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0100); /* DSP In = MONO IN */ 510 } 511 512 513 /* MSP3410/MSP3415 - countries with mono, stereo using 2 FM channels and NICAM */ 514 /* FAST sound scheme */ 515 else if (bktr->slow_msp_audio == 0) { 516 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ 517 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Spkr Source = default(FM/AM) */ 518 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */ 519 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */ 520 } 521 522 523 /* MSP3410/MSP3415 - European Countries where the fast MSP3410/3415 programming fails */ 524 /* SLOW sound scheme */ 525 else if ( bktr->slow_msp_audio == 1) { 526 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */ 527 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */ 528 529 /* wait for 0.5s max for terrestrial sound autodetection */ 530 loops = 10; 531 do { 532 DELAY(100000); 533 auto_detect = msp_dpl_read(bktr, bktr->msp_addr, 0x10, 0x007e); 534 loops++; 535 } while (auto_detect > 0xff && loops < 50); 536 if (bootverbose)printf ("%s: Result of autodetect after %dms: %d\n", 537 bktr_name(bktr), loops*10, auto_detect); 538 539 /* Now set the audio baseband processing */ 540 switch (auto_detect) { 541 case 0: /* no TV sound standard detected */ 542 break; 543 case 2: /* M Dual FM */ 544 break; 545 case 3: /* B/G Dual FM; German stereo */ 546 /* Read the stereo detection value from DSP reg 0x0018 */ 547 DELAY(20000); 548 stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); 549 if (bootverbose)printf ("%s: Stereo reg 0x18 a: %d\n", 550 bktr_name(bktr), stereo); 551 DELAY(20000); 552 stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); 553 if (bootverbose)printf ("%s: Stereo reg 0x18 b: %d\n", 554 bktr_name(bktr), stereo); 555 DELAY(20000); 556 stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018); 557 if (bootverbose)printf ("%s: Stereo reg 0x18 c: %d\n", 558 bktr_name(bktr), stereo); 559 if (stereo > 0x0100 && stereo < 0x8000) { /* Seems to be stereo */ 560 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker set stereo*/ 561 /* 562 set spatial effect strength to 50% enlargement 563 set spatial effect mode b, stereo basewidth enlargment only 564 */ 565 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f28); 566 } else if (stereo > 0x8000) { /* bilingual mode */ 567 if (bootverbose) printf ("%s: Bilingual mode detected\n", 568 bktr_name(bktr)); 569 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Loudspeaker */ 570 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x0000);/* all spatial effects off */ 571 } else { /* must be mono */ 572 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0030);/* Loudspeaker */ 573 /* 574 set spatial effect strength to 50% enlargement 575 set spatial effect mode a, stereo basewidth enlargment 576 and pseudo stereo effect with automatic high-pass filter 577 */ 578 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f08); 579 } 580#if 0 581 /* The reset value for Channel matrix mode is FM/AM and SOUNDA/LEFT */ 582 /* We would like STEREO instead val: 0x0020 */ 583 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker */ 584 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0009,0x0020);/* Headphone */ 585 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000a,0x0020);/* SCART1 */ 586 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0041,0x0020);/* SCART2 */ 587 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000b,0x0020);/* I2S */ 588 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000c,0x0020);/* Quasi-Peak Detector Source */ 589 msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000e,0x0001); 590#endif 591 break; 592 case 8: /* B/G FM NICAM */ 593 msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */ 594 break; 595 case 9: /* L_AM NICAM or D/K*/ 596 case 10: /* i-FM NICAM */ 597 break; 598 default: 599 if (bootverbose) printf ("%s: Unknown autodetection result value: %d\n", 600 bktr_name(bktr), auto_detect); 601 } 602 603 } 604 605 606 /* uncomment the following line to enable the MSP34xx 1Khz Tone Generator */ 607 /* turn your speaker volume down low before trying this */ 608 /* msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0014, 0x7f40); */ 609 610#endif /* BKTR_NEW_MSP34XX_DRIVER */ 611} 612 613/* Read the DPL version string */ 614void dpl_read_id( bktr_ptr_t bktr ){ 615 int rev1=0, rev2=0; 616 rev1 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001e); 617 rev2 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001f); 618 619 sprintf(bktr->dpl_version_string, "34%02d%c-%c%d", 620 ((rev2>>8)&0xff)-1, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f); 621} 622 623/* Configure the DPL chip to Auto-detect the audio format */ 624void dpl_autodetect( bktr_ptr_t bktr ) { 625 626 /* The following are empiric values tried from the DPL35xx data sheet */ 627 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x000c,0x0320); /* quasi peak detector source dolby 628 lr 0x03xx; quasi peak detector matrix 629 stereo 0xXX20 */ 630 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0040,0x0060); /* Surround decoder mode; 631 ADAPTIVE/3D-PANORAMA, that means two 632 speakers and no center speaker, all 633 channels L/R/C/S mixed to L and R */ 634 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0041,0x0620); /* surround source matrix;I2S2/STEREO*/ 635 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0042,0x1F00); /* surround delay 31ms max */ 636 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0043,0x0000); /* automatic surround input balance */ 637 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0044,0x4000); /* surround spatial effect 50% 638 recommended*/ 639 msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0045,0x5400); /* surround panorama effect 66% 640 recommended with PANORAMA mode 641 in 0x0040 set to panorama */ 642} 643 644