Annotation of sys/dev/pci/bktr/bktr_audio.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: bktr_audio.c,v 1.9 2007/06/11 08:10:22 robert Exp $ */
! 2: /* $FreeBSD: src/sys/dev/bktr/bktr_audio.c,v 1.8 2000/10/31 13:09:56 roger Exp $ */
! 3: /*
! 4: * This is part of the Driver for Video Capture Cards (Frame grabbers)
! 5: * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
! 6: * chipset.
! 7: * Copyright Roger Hardiman and Amancio Hasty.
! 8: *
! 9: * bktr_audio : This deals with controlling the audio on TV cards,
! 10: * controlling the Audio Multiplexer (audio source selector).
! 11: * controlling any MSP34xx stereo audio decoders.
! 12: * controlling any DPL35xx dolby surround sound audio decoders.
! 13: * initialising TDA98xx audio devices.
! 14: *
! 15: */
! 16:
! 17: /*
! 18: * 1. Redistributions of source code must retain the
! 19: * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
! 20: * All rights reserved.
! 21: *
! 22: * Redistribution and use in source and binary forms, with or without
! 23: * modification, are permitted provided that the following conditions
! 24: * are met:
! 25: * 1. Redistributions of source code must retain the above copyright
! 26: * notice, this list of conditions and the following disclaimer.
! 27: * 2. Redistributions in binary form must reproduce the above copyright
! 28: * notice, this list of conditions and the following disclaimer in the
! 29: * documentation and/or other materials provided with the distribution.
! 30: * 3. All advertising materials mentioning features or use of this software
! 31: * must display the following acknowledgement:
! 32: * This product includes software developed by Amancio Hasty and
! 33: * Roger Hardiman
! 34: * 4. The name of the author may not be used to endorse or promote products
! 35: * derived from this software without specific prior written permission.
! 36: *
! 37: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 38: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
! 39: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
! 40: * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
! 41: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
! 42: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
! 43: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 44: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
! 45: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
! 46: * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 47: * POSSIBILITY OF SUCH DAMAGE.
! 48: */
! 49:
! 50: #include <sys/param.h>
! 51: #include <sys/systm.h>
! 52: #include <sys/kernel.h>
! 53: #include <sys/vnode.h>
! 54: #include <sys/proc.h>
! 55:
! 56: #include <dev/ic/bt8xx.h> /* OpenBSD location of .h files */
! 57: #include <dev/pci/bktr/bktr_reg.h>
! 58: #include <dev/pci/bktr/bktr_core.h>
! 59: #include <dev/pci/bktr/bktr_tuner.h>
! 60: #include <dev/pci/bktr/bktr_card.h>
! 61: #include <dev/pci/bktr/bktr_audio.h>
! 62:
! 63: /*
! 64: * Prototypes for the GV_BCTV specific functions.
! 65: */
! 66: void set_bctv_audio( bktr_ptr_t bktr );
! 67: void bctv_gpio_write( bktr_ptr_t bktr, int port, int val );
! 68: /*int bctv_gpio_read( bktr_ptr_t bktr, int port );*/ /* Not used */
! 69:
! 70:
! 71:
! 72: /*
! 73: * init_audio_devices
! 74: * Reset any MSP34xx or TDA98xx audio devices.
! 75: */
! 76: void init_audio_devices( bktr_ptr_t bktr ) {
! 77:
! 78: /* enable stereo if appropriate on TDA audio chip */
! 79: if ( bktr->card.dbx )
! 80: init_BTSC( bktr );
! 81:
! 82: /* reset the MSP34xx stereo audio chip */
! 83: if ( bktr->card.msp3400c )
! 84: msp_dpl_reset( bktr, bktr->msp_addr );
! 85:
! 86: /* reset the DPL35xx dolby audio chip */
! 87: if ( bktr->card.dpl3518a )
! 88: msp_dpl_reset( bktr, bktr->dpl_addr );
! 89:
! 90: }
! 91:
! 92:
! 93: /*
! 94: *
! 95: */
! 96: #define AUDIOMUX_DISCOVER_NOT
! 97: int
! 98: set_audio( bktr_ptr_t bktr, int cmd )
! 99: {
! 100: u_int temp;
! 101: volatile u_char idx;
! 102:
! 103: #if defined( AUDIOMUX_DISCOVER )
! 104: if ( cmd >= 200 )
! 105: cmd -= 200;
! 106: else
! 107: #endif /* AUDIOMUX_DISCOVER */
! 108:
! 109: /* check for existance of audio MUXes */
! 110: if ( !bktr->card.audiomuxs[ 4 ] )
! 111: return( -1 );
! 112:
! 113: switch (cmd) {
! 114: case AUDIO_TUNER:
! 115: #ifdef BKTR_REVERSEMUTE
! 116: bktr->audio_mux_select = 3;
! 117: #else
! 118: bktr->audio_mux_select = 0;
! 119: #endif
! 120:
! 121: if (bktr->reverse_mute )
! 122: bktr->audio_mux_select = 0;
! 123: else
! 124: bktr->audio_mux_select = 3;
! 125:
! 126: break;
! 127: case AUDIO_EXTERN:
! 128: bktr->audio_mux_select = 1;
! 129: break;
! 130: case AUDIO_INTERN:
! 131: bktr->audio_mux_select = 2;
! 132: break;
! 133: case AUDIO_MUTE:
! 134: bktr->audio_mute_state = TRUE; /* set mute */
! 135: break;
! 136: case AUDIO_UNMUTE:
! 137: bktr->audio_mute_state = FALSE; /* clear mute */
! 138: break;
! 139: default:
! 140: printf("%s: audio cmd error %02x\n", bktr_name(bktr),
! 141: cmd);
! 142: return( -1 );
! 143: }
! 144:
! 145:
! 146: /* Most cards have a simple audio multiplexer to select the
! 147: * audio source. The I/O_GV card has a more advanced multiplexer
! 148: * and requires special handling.
! 149: */
! 150: if ( bktr->bt848_card == CARD_IO_GV ) {
! 151: set_bctv_audio( bktr );
! 152: return( 0 );
! 153: }
! 154:
! 155: /* Proceed with the simpler audio multiplexer code for the majority
! 156: * of Bt848 cards.
! 157: */
! 158:
! 159: /*
! 160: * Leave the upper bits of the GPIO port alone in case they control
! 161: * something like the dbx or teletext chips. This doesn't guarantee
! 162: * success, but follows the rule of least astonishment.
! 163: */
! 164:
! 165: if ( bktr->audio_mute_state == TRUE ) {
! 166: #ifdef BKTR_REVERSEMUTE
! 167: idx = 0;
! 168: #else
! 169: idx = 3;
! 170: #endif
! 171:
! 172: if (bktr->reverse_mute )
! 173: idx = 3;
! 174: else
! 175: idx = 0;
! 176:
! 177: }
! 178: else
! 179: idx = bktr->audio_mux_select;
! 180:
! 181:
! 182: temp = INL(bktr, BKTR_GPIO_DATA) & ~bktr->card.gpio_mux_bits;
! 183: #if defined( AUDIOMUX_DISCOVER )
! 184: OUTL(bktr, BKTR_GPIO_DATA, temp | (cmd & 0xff));
! 185: printf("%s: cmd: %d audio mux %x temp %x \n", bktr_name(bktr),
! 186: cmd, bktr->card.audiomuxs[ idx ], temp );
! 187: #else
! 188: OUTL(bktr, BKTR_GPIO_DATA, temp | bktr->card.audiomuxs[ idx ]);
! 189: #endif /* AUDIOMUX_DISCOVER */
! 190:
! 191:
! 192:
! 193: /* Some new Hauppauge cards do not have an audio mux */
! 194: /* Instead we use the MSP34xx chip to select TV audio, Line-In */
! 195: /* FM Radio and Mute */
! 196: /* Examples of this are the Hauppauge 44xxx MSP34xx models */
! 197: /* It is ok to drive both the mux and the MSP34xx chip. */
! 198: /* If there is no mux, the MSP does the switching of the audio source */
! 199: /* If there is a mux, it does the switching of the audio source */
! 200:
! 201: if ((bktr->card.msp3400c) && (bktr->audio_mux_present == 0)) {
! 202:
! 203: if (bktr->audio_mute_state == TRUE ) {
! 204: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x0000); /* volume to MUTE */
! 205: } else {
! 206: if(bktr->audio_mux_select == 0) { /* TV Tuner */
! 207: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */
! 208: if (bktr->msp_source_selected != 0) msp_autodetect(bktr); /* setup TV audio mode */
! 209: bktr->msp_source_selected = 0;
! 210: }
! 211: if(bktr->audio_mux_select == 1) { /* Line In */
! 212: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */
! 213: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */
! 214: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */
! 215: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0000); /* DSP In = SC1_IN_L/R */
! 216: bktr->msp_source_selected = 1;
! 217: }
! 218:
! 219: if(bktr->audio_mux_select == 2) { /* FM Radio */
! 220: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */
! 221: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */
! 222: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */
! 223: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0200); /* DSP In = SC2_IN_L/R */
! 224: bktr->msp_source_selected = 2;
! 225: }
! 226: }
! 227: }
! 228:
! 229:
! 230: return( 0 );
! 231: }
! 232:
! 233:
! 234: /*
! 235: *
! 236: */
! 237: void
! 238: temp_mute( bktr_ptr_t bktr, int flag )
! 239: {
! 240: static int muteState = FALSE;
! 241:
! 242: if ( flag == TRUE ) {
! 243: muteState = bktr->audio_mute_state;
! 244: set_audio( bktr, AUDIO_MUTE ); /* prevent 'click' */
! 245: }
! 246: else {
! 247: tsleep( BKTR_SLEEP, PZERO, "tuning", hz/8 );
! 248: if ( muteState == FALSE )
! 249: set_audio( bktr, AUDIO_UNMUTE );
! 250: }
! 251: }
! 252:
! 253: /* address of BTSC/SAP decoder chip */
! 254: #define TDA9850_WADDR 0xb6
! 255: #define TDA9850_RADDR 0xb7
! 256:
! 257:
! 258: /* registers in the TDA9850 BTSC/dbx chip */
! 259: #define CON1ADDR 0x04
! 260: #define CON2ADDR 0x05
! 261: #define CON3ADDR 0x06
! 262: #define CON4ADDR 0x07
! 263: #define ALI1ADDR 0x08
! 264: #define ALI2ADDR 0x09
! 265: #define ALI3ADDR 0x0a
! 266:
! 267: /*
! 268: * initialise the dbx chip
! 269: * taken from the Linux bttv driver TDA9850 initialisation code
! 270: */
! 271: void
! 272: init_BTSC( bktr_ptr_t bktr )
! 273: {
! 274: i2cWrite(bktr, TDA9850_WADDR, CON1ADDR, 0x08); /* noise threshold st */
! 275: i2cWrite(bktr, TDA9850_WADDR, CON2ADDR, 0x08); /* noise threshold sap */
! 276: i2cWrite(bktr, TDA9850_WADDR, CON3ADDR, 0x40); /* stereo mode */
! 277: i2cWrite(bktr, TDA9850_WADDR, CON4ADDR, 0x07); /* 0 dB input gain? */
! 278: i2cWrite(bktr, TDA9850_WADDR, ALI1ADDR, 0x10); /* wideband alignment? */
! 279: i2cWrite(bktr, TDA9850_WADDR, ALI2ADDR, 0x10); /* spectral alignment? */
! 280: i2cWrite(bktr, TDA9850_WADDR, ALI3ADDR, 0x03);
! 281: }
! 282:
! 283: /*
! 284: * setup the dbx chip
! 285: * XXX FIXME: alot of work to be done here, this merely unmutes it.
! 286: */
! 287: int
! 288: set_BTSC( bktr_ptr_t bktr, int control )
! 289: {
! 290: return( i2cWrite( bktr, TDA9850_WADDR, CON3ADDR, control ) );
! 291: }
! 292:
! 293: /*
! 294: * CARD_GV_BCTV specific functions.
! 295: */
! 296:
! 297: #define BCTV_AUDIO_MAIN 0x10 /* main audio program */
! 298: #define BCTV_AUDIO_SUB 0x20 /* sub audio program */
! 299: #define BCTV_AUDIO_BOTH 0x30 /* main(L) + sub(R) program */
! 300:
! 301: #define BCTV_GPIO_REG0 1
! 302: #define BCTV_GPIO_REG1 3
! 303:
! 304: #define BCTV_GR0_AUDIO_MODE 3
! 305: #define BCTV_GR0_AUDIO_MAIN 0 /* main program */
! 306: #define BCTV_GR0_AUDIO_SUB 3 /* sub program */
! 307: #define BCTV_GR0_AUDIO_BOTH 1 /* main(L) + sub(R) */
! 308: #define BCTV_GR0_AUDIO_MUTE 4 /* audio mute */
! 309: #define BCTV_GR0_AUDIO_MONO 8 /* force mono */
! 310:
! 311: void
! 312: set_bctv_audio( bktr_ptr_t bktr )
! 313: {
! 314: int data;
! 315:
! 316: switch (bktr->audio_mux_select) {
! 317: case 1: /* external */
! 318: case 2: /* internal */
! 319: bctv_gpio_write(bktr, BCTV_GPIO_REG1, 0);
! 320: break;
! 321: default: /* tuner */
! 322: bctv_gpio_write(bktr, BCTV_GPIO_REG1, 1);
! 323: break;
! 324: }
! 325: /* switch (bktr->audio_sap_select) { */
! 326: switch (BCTV_AUDIO_BOTH) {
! 327: case BCTV_AUDIO_SUB:
! 328: data = BCTV_GR0_AUDIO_SUB;
! 329: break;
! 330: case BCTV_AUDIO_BOTH:
! 331: data = BCTV_GR0_AUDIO_BOTH;
! 332: break;
! 333: case BCTV_AUDIO_MAIN:
! 334: default:
! 335: data = BCTV_GR0_AUDIO_MAIN;
! 336: break;
! 337: }
! 338: if (bktr->audio_mute_state == TRUE)
! 339: data |= BCTV_GR0_AUDIO_MUTE;
! 340:
! 341: bctv_gpio_write(bktr, BCTV_GPIO_REG0, data);
! 342:
! 343: return;
! 344: }
! 345:
! 346: /* gpio_data bit assignment */
! 347: #define BCTV_GPIO_ADDR_MASK 0x000300
! 348: #define BCTV_GPIO_WE 0x000400
! 349: #define BCTV_GPIO_OE 0x000800
! 350: #define BCTV_GPIO_VAL_MASK 0x00f000
! 351:
! 352: #define BCTV_GPIO_PORT_MASK 3
! 353: #define BCTV_GPIO_ADDR_SHIFT 8
! 354: #define BCTV_GPIO_VAL_SHIFT 12
! 355:
! 356: /* gpio_out_en value for read/write */
! 357: #define BCTV_GPIO_OUT_RMASK 0x000f00
! 358: #define BCTV_GPIO_OUT_WMASK 0x00ff00
! 359:
! 360: #define BCTV_BITS 100
! 361:
! 362: void
! 363: bctv_gpio_write( bktr_ptr_t bktr, int port, int val )
! 364: {
! 365: u_int data, outbits;
! 366:
! 367: port &= BCTV_GPIO_PORT_MASK;
! 368: switch (port) {
! 369: case 1:
! 370: case 3:
! 371: data = ((val << BCTV_GPIO_VAL_SHIFT) & BCTV_GPIO_VAL_MASK) |
! 372: ((port << BCTV_GPIO_ADDR_SHIFT) & BCTV_GPIO_ADDR_MASK) |
! 373: BCTV_GPIO_WE | BCTV_GPIO_OE;
! 374: outbits = BCTV_GPIO_OUT_WMASK;
! 375: break;
! 376: default:
! 377: return;
! 378: }
! 379: OUTL(bktr, BKTR_GPIO_OUT_EN, 0);
! 380: OUTL(bktr, BKTR_GPIO_DATA, data);
! 381: OUTL(bktr, BKTR_GPIO_OUT_EN, outbits);
! 382: DELAY(BCTV_BITS);
! 383: OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV_GPIO_WE);
! 384: DELAY(BCTV_BITS);
! 385: OUTL(bktr, BKTR_GPIO_DATA, data);
! 386: DELAY(BCTV_BITS);
! 387: OUTL(bktr, BKTR_GPIO_DATA, ~0);
! 388: OUTL(bktr, BKTR_GPIO_OUT_EN, 0);
! 389: }
! 390:
! 391: /* Not yet used
! 392: int
! 393: bctv_gpio_read( bktr_ptr_t bktr, int port )
! 394: {
! 395: u_int data, outbits, ret;
! 396:
! 397: port &= BCTV_GPIO_PORT_MASK;
! 398: switch (port) {
! 399: case 1:
! 400: case 3:
! 401: data = ((port << BCTV_GPIO_ADDR_SHIFT) & BCTV_GPIO_ADDR_MASK) |
! 402: BCTV_GPIO_WE | BCTV_GPIO_OE;
! 403: outbits = BCTV_GPIO_OUT_RMASK;
! 404: break;
! 405: default:
! 406: return( -1 );
! 407: }
! 408: OUTL(bktr, BKTR_GPIO_OUT_EN, 0);
! 409: OUTL(bktr, BKTR_GPIO_DATA, data);
! 410: OUTL(bktr, BKTR_GPIO_OUT_EN, outbits);
! 411: DELAY(BCTV_BITS);
! 412: OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV_GPIO_OE);
! 413: DELAY(BCTV_BITS);
! 414: ret = INL(bktr, BKTR_GPIO_DATA);
! 415: DELAY(BCTV_BITS);
! 416: OUTL(bktr, BKTR_GPIO_DATA, data);
! 417: DELAY(BCTV_BITS);
! 418: OUTL(bktr, BKTR_GPIO_DATA, ~0);
! 419: OUTL(bktr, BKTR_GPIO_OUT_EN, 0);
! 420: return( (ret & BCTV_GPIO_VAL_MASK) >> BCTV_GPIO_VAL_SHIFT );
! 421: }
! 422: */
! 423:
! 424: /*
! 425: * setup the MSP34xx Stereo Audio Chip
! 426: * This uses the Auto Configuration Option on MSP3410D and MSP3415D chips
! 427: * and DBX mode selection for MSP3430G chips.
! 428: * For MSP3400C support, the full programming sequence is required and is
! 429: * not yet supported.
! 430: */
! 431:
! 432: /* Read the MSP version string */
! 433: void msp_read_id( bktr_ptr_t bktr ){
! 434: int rev1=0, rev2=0;
! 435: rev1 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001e);
! 436: rev2 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001f);
! 437:
! 438: snprintf(bktr->msp_version_string, sizeof bktr->msp_version_string,
! 439: "34%02d%c-%c%d", (rev2>>8)&0xff, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@',
! 440: rev2&0x1f);
! 441:
! 442: }
! 443:
! 444:
! 445: /* Configure the MSP chip to Auto-detect the audio format.
! 446: * For the MSP3430G, we use fast autodetect mode
! 447: * For the MSP3410/3415 there are two schemes for this
! 448: * a) Fast autodetection - the chip is put into autodetect mode, and the function
! 449: * returns immediately. This works in most cases and is the Default Mode.
! 450: * b) Slow mode. The function sets the MSP3410/3415 chip, then waits for feedback from
! 451: * the chip and re-programs it if needed.
! 452: */
! 453: void msp_autodetect( bktr_ptr_t bktr ) {
! 454: int auto_detect, loops;
! 455: int stereo;
! 456:
! 457: /* MSP3430G - countries with mono and DBX stereo */
! 458: if (strncmp("3430G", bktr->msp_version_string, 5) == 0 ||
! 459: strncmp("3435G", bktr->msp_version_string, 5) == 0) {
! 460:
! 461: msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0030,0x2003);/* Enable Auto format detection */
! 462: msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0020);/* Standard Select Reg. = BTSC-Stereo*/
! 463: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000E,0x2403);/* darned if I know */
! 464: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0320);/* Source select = (St or A) */
! 465: /* & Ch. Matrix = St */
! 466: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */
! 467: }
! 468:
! 469:
! 470: /* MSP3415D SPECIAL CASE Use the Tuner's Mono audio output for the MSP */
! 471: /* (for Hauppauge 44xxx card with Tuner Type 0x2a) */
! 472: else if ( ( (strncmp("3415D", bktr->msp_version_string, 5) == 0)
! 473: &&(bktr->msp_use_mono_source == 1)
! 474: )
! 475: || (bktr->slow_msp_audio == 2) ){
! 476: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */
! 477: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */
! 478: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */
! 479: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0100); /* DSP In = MONO IN */
! 480: }
! 481:
! 482:
! 483: /* MSP3410/MSP3415 - countries with mono, stereo using 2 FM channels and NICAM */
! 484: /* FAST sound scheme */
! 485: else if (bktr->slow_msp_audio == 0) {
! 486: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */
! 487: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Spkr Source = default(FM/AM) */
! 488: msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */
! 489: msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */
! 490: }
! 491:
! 492:
! 493: /* MSP3410/MSP3415 - European Countries where the fast MSP3410/3415 programming fails */
! 494: /* SLOW sound scheme */
! 495: else if ( bktr->slow_msp_audio == 1) {
! 496: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */
! 497: msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */
! 498:
! 499: /* wait for 0.5s max for terrestrial sound autodetection */
! 500: loops = 10;
! 501: do {
! 502: DELAY(100000);
! 503: auto_detect = msp_dpl_read(bktr, bktr->msp_addr, 0x10, 0x007e);
! 504: loops++;
! 505: } while (auto_detect > 0xff && loops < 50);
! 506: if (bootverbose)printf ("%s: Result of autodetect after %dms: %d\n",
! 507: bktr_name(bktr), loops*10, auto_detect);
! 508:
! 509: /* Now set the audio baseband processing */
! 510: switch (auto_detect) {
! 511: case 0: /* no TV sound standard detected */
! 512: break;
! 513: case 2: /* M Dual FM */
! 514: break;
! 515: case 3: /* B/G Dual FM; German stereo */
! 516: /* Read the stereo detection value from DSP reg 0x0018 */
! 517: DELAY(20000);
! 518: stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018);
! 519: if (bootverbose)printf ("%s: Stereo reg 0x18 a: %d\n",
! 520: bktr_name(bktr), stereo);
! 521: DELAY(20000);
! 522: stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018);
! 523: if (bootverbose)printf ("%s: Stereo reg 0x18 b: %d\n",
! 524: bktr_name(bktr), stereo);
! 525: DELAY(20000);
! 526: stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018);
! 527: if (bootverbose)printf ("%s: Stereo reg 0x18 c: %d\n",
! 528: bktr_name(bktr), stereo);
! 529: if (stereo > 0x0100 && stereo < 0x8000) { /* Seems to be stereo */
! 530: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker set stereo*/
! 531: /*
! 532: set spatial effect strength to 50% enlargement
! 533: set spatial effect mode b, stereo basewidth enlargment only
! 534: */
! 535: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f28);
! 536: } else if (stereo > 0x8000) { /* bilingual mode */
! 537: if (bootverbose) printf ("%s: Bilingual mode detected\n",
! 538: bktr_name(bktr));
! 539: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Loudspeaker */
! 540: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x0000);/* all spatial effects off */
! 541: } else { /* must be mono */
! 542: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0030);/* Loudspeaker */
! 543: /*
! 544: set spatial effect strength to 50% enlargement
! 545: set spatial effect mode a, stereo basewidth enlargment
! 546: and pseudo stereo effect with automatic high-pass filter
! 547: */
! 548: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f08);
! 549: }
! 550: #if 0
! 551: /* The reset value for Channel matrix mode is FM/AM and SOUNDA/LEFT */
! 552: /* We would like STEREO instead val: 0x0020 */
! 553: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker */
! 554: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0009,0x0020);/* Headphone */
! 555: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000a,0x0020);/* SCART1 */
! 556: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0041,0x0020);/* SCART2 */
! 557: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000b,0x0020);/* I2S */
! 558: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000c,0x0020);/* Quasi-Peak Detector Source */
! 559: msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000e,0x0001);
! 560: #endif
! 561: break;
! 562: case 8: /* B/G FM NICAM */
! 563: msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */
! 564: break;
! 565: case 9: /* L_AM NICAM or D/K*/
! 566: case 10: /* i-FM NICAM */
! 567: break;
! 568: default:
! 569: if (bootverbose) printf ("%s: Unknown autodetection result value: %d\n",
! 570: bktr_name(bktr), auto_detect);
! 571: }
! 572:
! 573: }
! 574:
! 575:
! 576: /* uncomment the following line to enable the MSP34xx 1KHz Tone Generator */
! 577: /* turn your speaker volume down low before trying this */
! 578: /* msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0014, 0x7f40); */
! 579: }
! 580:
! 581: /* Read the DPL version string */
! 582: void dpl_read_id( bktr_ptr_t bktr ){
! 583: int rev1=0, rev2=0;
! 584: rev1 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001e);
! 585: rev2 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001f);
! 586:
! 587: snprintf(bktr->dpl_version_string, sizeof bktr->dpl_version_string,
! 588: "34%02d%c-%c%d", ((rev2>>8)&0xff)-1, (rev1&0xff)+'@',
! 589: ((rev1>>8)&0xff)+'@', rev2&0x1f);
! 590: }
! 591:
! 592: /* Configure the DPL chip to Auto-detect the audio format */
! 593: void dpl_autodetect( bktr_ptr_t bktr ) {
! 594:
! 595: /* The following are empiric values tried from the DPL35xx data sheet */
! 596: msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x000c,0x0320); /* quasi peak detector source dolby
! 597: lr 0x03xx; quasi peak detector matrix
! 598: stereo 0xXX20 */
! 599: msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0040,0x0060); /* Surround decoder mode;
! 600: ADAPTIVE/3D-PANORAMA, that means two
! 601: speakers and no center speaker, all
! 602: channels L/R/C/S mixed to L and R */
! 603: msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0041,0x0620); /* surround source matrix;I2S2/STEREO*/
! 604: msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0042,0x1F00); /* surround delay 31ms max */
! 605: msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0043,0x0000); /* automatic surround input balance */
! 606: msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0044,0x4000); /* surround spatial effect 50%
! 607: recommended*/
! 608: msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0045,0x5400); /* surround panorama effect 66%
! 609: recommended with PANORAMA mode
! 610: in 0x0040 set to panorama */
! 611: }
! 612:
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