sbdsp.c revision 1.50
1 /* $NetBSD: sbdsp.c,v 1.50 1997/05/19 23:14:29 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 1991-1993 Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the Computer Systems 18 * Engineering Group at Lawrence Berkeley Laboratory. 19 * 4. Neither the name of the University nor of the Laboratory may be used 20 * to endorse or promote products derived from this software without 21 * specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 */ 36 37 /* 38 * SoundBlaster Pro code provided by John Kohl, based on lots of 39 * information he gleaned from Steve Haehnichen <steve (at) vigra.com>'s 40 * SBlast driver for 386BSD and DOS driver code from Daniel Sachs 41 * <sachs (at) meibm15.cen.uiuc.edu>. 42 * Lots of rewrites by Lennart Augustsson with information from 43 * SB "Hardware Programming Guide" and the Linux drivers. 44 */ 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/errno.h> 49 #include <sys/ioctl.h> 50 #include <sys/syslog.h> 51 #include <sys/device.h> 52 #include <sys/proc.h> 53 #include <sys/buf.h> 54 #include <vm/vm.h> 55 56 #include <machine/cpu.h> 57 #include <machine/intr.h> 58 #include <machine/pio.h> 59 60 #include <sys/audioio.h> 61 #include <dev/audio_if.h> 62 #include <dev/mulaw.h> 63 64 #include <dev/isa/isavar.h> 65 #include <dev/isa/isadmavar.h> 66 #include <i386/isa/icu.h> /* XXX BROKEN; WHY? */ 67 68 #include <dev/isa/sbreg.h> 69 #include <dev/isa/sbdspvar.h> 70 71 #ifdef AUDIO_DEBUG 72 extern void Dprintf __P((const char *, ...)); 73 #define DPRINTF(x) if (sbdspdebug) Dprintf x 74 int sbdspdebug = 0; 75 #else 76 #define DPRINTF(x) 77 #endif 78 79 #ifndef SBDSP_NPOLL 80 #define SBDSP_NPOLL 3000 81 #endif 82 83 struct { 84 int wdsp; 85 int rdsp; 86 int wmidi; 87 } sberr; 88 89 void sbdsp_srtotc __P((struct sbdsp_softc *sc, int sr, int isdac, 90 int *tcp, int *modep)); 91 u_int sbdsp_jazz16_probe __P((struct sbdsp_softc *)); 92 void sbdsp_set_mixer_gain __P((struct sbdsp_softc *sc, int port)); 93 94 /* 95 * Time constant routines follow. See SBK, section 12. 96 * Although they don't come out and say it (in the docs), 97 * the card clearly uses a 1MHz countdown timer, as the 98 * low-speed formula (p. 12-4) is: 99 * tc = 256 - 10^6 / sr 100 * In high-speed mode, the constant is the upper byte of a 16-bit counter, 101 * and a 256MHz clock is used: 102 * tc = 65536 - 256 * 10^ 6 / sr 103 * Since we can only use the upper byte of the HS TC, the two formulae 104 * are equivalent. (Why didn't they say so?) E.g., 105 * (65536 - 256 * 10 ^ 6 / x) >> 8 = 256 - 10^6 / x 106 * 107 * The crossover point (from low- to high-speed modes) is different 108 * for the SBPRO and SB20. The table on p. 12-5 gives the following data: 109 * 110 * SBPRO SB20 111 * ----- -------- 112 * input ls min 4 KHz 4 KHz 113 * input ls max 23 KHz 13 KHz 114 * input hs max 44.1 KHz 15 KHz 115 * output ls min 4 KHz 4 KHz 116 * output ls max 23 KHz 23 KHz 117 * output hs max 44.1 KHz 44.1 KHz 118 */ 119 #define SB_LS_MIN 0x06 /* 4000 Hz */ 120 #define SB_8K 0x83 /* 8000 Hz */ 121 #define SBPRO_ADC_LS_MAX 0xd4 /* 22727 Hz */ 122 #define SBPRO_ADC_HS_MAX 0xea /* 45454 Hz */ 123 #define SBCLA_ADC_LS_MAX 0xb3 /* 12987 Hz */ 124 #define SBCLA_ADC_HS_MAX 0xbd /* 14925 Hz */ 125 #define SB_DAC_LS_MAX 0xd4 /* 22727 Hz */ 126 #define SB_DAC_HS_MAX 0xea /* 45454 Hz */ 127 128 int sbdsp16_wait __P((struct sbdsp_softc *)); 129 void sbdsp_to __P((void *)); 130 void sbdsp_pause __P((struct sbdsp_softc *)); 131 int sbdsp16_setrate __P((struct sbdsp_softc *, int, int, int *)); 132 int sbdsp_tctosr __P((struct sbdsp_softc *, int)); 133 int sbdsp_set_timeconst __P((struct sbdsp_softc *, int)); 134 int sbdsp_set_in_ports __P((struct sbdsp_softc *, int)); 135 void sbdsp_set_ifilter __P((void *, int)); 136 int sbdsp_get_ifilter __P((void *)); 137 138 #ifdef AUDIO_DEBUG 139 void sb_printsc __P((struct sbdsp_softc *)); 140 141 void 142 sb_printsc(sc) 143 struct sbdsp_softc *sc; 144 { 145 int i; 146 147 printf("open %d dmachan %d/%d/%d iobase 0x%x irq %d\n", 148 (int)sc->sc_open, sc->dmachan, sc->sc_drq8, sc->sc_drq16, 149 sc->sc_iobase, sc->sc_irq); 150 printf("irate %d itc %d imode %d orate %d otc %d omode %d\n", 151 sc->sc_irate, sc->sc_itc, sc->sc_imode, 152 sc->sc_orate, sc->sc_otc, sc->sc_omode); 153 printf("outport %u inport %u spkron %u nintr %lu\n", 154 sc->out_port, sc->in_port, sc->spkr_state, sc->sc_interrupts); 155 printf("precision %u channels %d intr %p arg %p\n", 156 sc->sc_precision, sc->sc_channels, sc->sc_intr, sc->sc_arg); 157 printf("gain:"); 158 for (i = 0; i < SB_NDEVS; i++) 159 printf(" %u,%u", sc->gain[i][SB_LEFT], sc->gain[i][SB_RIGHT]); 160 printf("\n"); 161 } 162 #endif /* AUDIO_DEBUG */ 163 164 /* 165 * Probe / attach routines. 166 */ 167 168 /* 169 * Probe for the soundblaster hardware. 170 */ 171 int 172 sbdsp_probe(sc) 173 struct sbdsp_softc *sc; 174 { 175 176 if (sbdsp_reset(sc) < 0) { 177 DPRINTF(("sbdsp: couldn't reset card\n")); 178 return 0; 179 } 180 /* if flags set, go and probe the jazz16 stuff */ 181 if (sc->sc_dev.dv_cfdata->cf_flags != 0) { 182 sc->sc_model = sbdsp_jazz16_probe(sc); 183 } else { 184 sc->sc_model = sbversion(sc); 185 } 186 187 switch(SBVER_MAJOR((sc)->sc_model)) { 188 default: 189 sc->sc_mixer_model = SBM_NONE; 190 break; 191 case 2: 192 /* Some SB2 have a mixer, some don't. */ 193 sbdsp_mix_write(sc, SBP_1335_MASTER_VOL, 0x04); 194 sbdsp_mix_write(sc, SBP_1335_MIDI_VOL, 0x06); 195 /* Check if we can read back the mixer values. */ 196 if (sbdsp_mix_read(sc, SBP_1335_MASTER_VOL) == 0x04 && 197 sbdsp_mix_read(sc, SBP_1335_MIDI_VOL) == 0x06) 198 sc->sc_mixer_model = SBM_CT1335; 199 else 200 sc->sc_mixer_model = SBM_NONE; 201 break; 202 case 3: 203 sc->sc_mixer_model = SBM_CT1345; 204 break; 205 case 4: 206 sc->sc_mixer_model = SBM_CT1745; 207 break; 208 } 209 if (ISJAZZ16(sc)) 210 sc->sc_mixer_model = SBM_CT1345; /* XXX really? */ 211 return 1; 212 } 213 214 /* 215 * Try add-on stuff for Jazz16. 216 */ 217 u_int 218 sbdsp_jazz16_probe(sc) 219 struct sbdsp_softc *sc; 220 { 221 static u_char jazz16_irq_conf[16] = { 222 -1, -1, 0x02, 0x03, 223 -1, 0x01, -1, 0x04, 224 -1, 0x02, 0x05, -1, 225 -1, -1, -1, 0x06}; 226 static u_char jazz16_drq_conf[8] = { 227 -1, 0x01, -1, 0x02, 228 -1, 0x03, -1, 0x04}; 229 230 u_int rval = sbversion(sc); 231 bus_space_tag_t iot = sc->sc_iot; 232 bus_space_handle_t ioh; 233 234 DPRINTF(("jazz16 probe\n")); 235 236 if (bus_space_map(iot, JAZZ16_CONFIG_PORT, 1, 0, &ioh)) { 237 DPRINTF(("bus map failed\n")); 238 return rval; 239 } 240 241 if (jazz16_drq_conf[sc->sc_drq8] == (u_char)-1 || 242 jazz16_irq_conf[sc->sc_irq] == (u_char)-1) { 243 DPRINTF(("drq/irq check failed\n")); 244 goto done; /* give up, we can't do it. */ 245 } 246 247 bus_space_write_1(iot, ioh, 0, JAZZ16_WAKEUP); 248 delay(10000); /* delay 10 ms */ 249 bus_space_write_1(iot, ioh, 0, JAZZ16_SETBASE); 250 bus_space_write_1(iot, ioh, 0, sc->sc_iobase & 0x70); 251 252 if (sbdsp_reset(sc) < 0) { 253 DPRINTF(("sbdsp_reset check failed\n")); 254 goto done; /* XXX? what else could we do? */ 255 } 256 257 if (sbdsp_wdsp(sc, JAZZ16_READ_VER)) { 258 DPRINTF(("read16 setup failed\n")); 259 goto done; 260 } 261 262 if (sbdsp_rdsp(sc) != JAZZ16_VER_JAZZ) { 263 DPRINTF(("read16 failed\n")); 264 goto done; 265 } 266 267 /* XXX set both 8 & 16-bit drq to same channel, it works fine. */ 268 sc->sc_drq16 = sc->sc_drq8; 269 if (sbdsp_wdsp(sc, JAZZ16_SET_DMAINTR) || 270 sbdsp_wdsp(sc, (jazz16_drq_conf[sc->sc_drq16] << 4) | 271 jazz16_drq_conf[sc->sc_drq8]) || 272 sbdsp_wdsp(sc, jazz16_irq_conf[sc->sc_irq])) { 273 DPRINTF(("sbdsp: can't write jazz16 probe stuff\n")); 274 } else { 275 DPRINTF(("jazz16 detected!\n")); 276 rval |= MODEL_JAZZ16; 277 } 278 279 done: 280 bus_space_unmap(iot, ioh, 1); 281 return rval; 282 } 283 284 /* 285 * Attach hardware to driver, attach hardware driver to audio 286 * pseudo-device driver . 287 */ 288 void 289 sbdsp_attach(sc) 290 struct sbdsp_softc *sc; 291 { 292 293 /* Set defaults */ 294 if (ISSB16CLASS(sc)) 295 sc->sc_irate = sc->sc_orate = 8000; 296 else 297 sc->sc_itc = sc->sc_otc = SB_8K; 298 sc->sc_precision = 8; 299 sc->sc_channels = 1; 300 301 (void) sbdsp_set_in_port(sc, SB_MIC_VOL); 302 (void) sbdsp_set_out_port(sc, SB_MASTER_VOL); 303 304 if (ISSBPROCLASS(sc)) { 305 int i; 306 u_int v; 307 308 /* set mixer to default levels, by sending a mixer 309 reset command. */ 310 sbdsp_mix_write(sc, SBP_MIX_RESET, SBP_MIX_RESET); 311 for (i = 0; i < SB_NDEVS; i++) { 312 switch(i) { 313 case SB_MIC_VOL: 314 case SB_LINE_IN_VOL: 315 v = 0; 316 break; 317 case SB_BASS: 318 case SB_TREBLE: 319 v = SB_ADJUST_GAIN(sc, AUDIO_MAX_GAIN/2); 320 break; 321 default: 322 v = SB_ADJUST_GAIN(sc, AUDIO_MAX_GAIN * 3 / 4); 323 break; 324 } 325 sc->gain[i][SB_LEFT] = sc->gain[i][SB_RIGHT] = v; 326 sbdsp_set_mixer_gain(sc, i); 327 } 328 sc->in_filter = 0; /* no filters turned on, please */ 329 } 330 331 printf(": dsp v%d.%02d%s\n", 332 SBVER_MAJOR(sc->sc_model), SBVER_MINOR(sc->sc_model), 333 ISJAZZ16(sc) ? ": <Jazz16>" : ""); 334 } 335 336 /* 337 * Various routines to interface to higher level audio driver 338 */ 339 340 void 341 sbdsp_mix_write(sc, mixerport, val) 342 struct sbdsp_softc *sc; 343 int mixerport; 344 int val; 345 { 346 bus_space_tag_t iot = sc->sc_iot; 347 bus_space_handle_t ioh = sc->sc_ioh; 348 int s; 349 350 s = splaudio(); 351 bus_space_write_1(iot, ioh, SBP_MIXER_ADDR, mixerport); 352 delay(20); 353 bus_space_write_1(iot, ioh, SBP_MIXER_DATA, val); 354 delay(30); 355 splx(s); 356 } 357 358 int 359 sbdsp_mix_read(sc, mixerport) 360 struct sbdsp_softc *sc; 361 int mixerport; 362 { 363 bus_space_tag_t iot = sc->sc_iot; 364 bus_space_handle_t ioh = sc->sc_ioh; 365 int val; 366 int s; 367 368 s = splaudio(); 369 bus_space_write_1(iot, ioh, SBP_MIXER_ADDR, mixerport); 370 delay(20); 371 val = bus_space_read_1(iot, ioh, SBP_MIXER_DATA); 372 delay(30); 373 splx(s); 374 return val; 375 } 376 377 int 378 sbdsp_query_encoding(addr, fp) 379 void *addr; 380 struct audio_encoding *fp; 381 { 382 struct sbdsp_softc *sc = addr; 383 384 switch (fp->index) { 385 case 0: 386 strcpy(fp->name, AudioEulinear); 387 fp->encoding = AUDIO_ENCODING_ULINEAR; 388 fp->precision = 8; 389 fp->flags = 0; 390 break; 391 case 1: 392 strcpy(fp->name, AudioEmulaw); 393 fp->encoding = AUDIO_ENCODING_ULAW; 394 fp->precision = 8; 395 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 396 break; 397 case 2: 398 strcpy(fp->name, AudioElinear); 399 fp->encoding = AUDIO_ENCODING_LINEAR; 400 fp->precision = 8; 401 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 402 break; 403 default: 404 if (!(ISSB16CLASS(sc) || ISJAZZ16(sc))) 405 return (EINVAL); 406 switch(fp->index) { 407 case 3: 408 strcpy(fp->name, AudioElinear_le); 409 fp->encoding = AUDIO_ENCODING_LINEAR_LE; 410 fp->precision = 16; 411 fp->flags = 0; 412 break; 413 case 4: 414 strcpy(fp->name, AudioEulinear_le); 415 fp->encoding = AUDIO_ENCODING_ULINEAR_LE; 416 fp->precision = 16; 417 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 418 break; 419 case 5: 420 strcpy(fp->name, AudioElinear_be); 421 fp->encoding = AUDIO_ENCODING_LINEAR_BE; 422 fp->precision = 16; 423 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 424 break; 425 case 6: 426 strcpy(fp->name, AudioEulinear_be); 427 fp->encoding = AUDIO_ENCODING_ULINEAR_BE; 428 fp->precision = 16; 429 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 430 break; 431 default: 432 return (EINVAL); 433 } 434 } 435 return (0); 436 } 437 438 int 439 sbdsp_set_params(addr, mode, p, q) 440 void *addr; 441 int mode; 442 struct audio_params *p, *q; 443 { 444 struct sbdsp_softc *sc = addr; 445 int maxspeed; 446 void (*swcode) __P((void *, u_char *buf, int cnt)); 447 int can16 = ISSB16CLASS(sc) || ISJAZZ16(sc); 448 449 switch (p->encoding) { 450 case AUDIO_ENCODING_LINEAR_LE: 451 if (p->precision == 8) 452 swcode = change_sign8; 453 else if (can16) 454 swcode = 0; 455 else 456 return EINVAL; 457 break; 458 case AUDIO_ENCODING_ULINEAR_LE: 459 if (p->precision == 8) 460 swcode = 0; 461 else if (can16) 462 swcode = change_sign16; 463 else 464 return EINVAL; 465 break; 466 case AUDIO_ENCODING_LINEAR_BE: 467 if (p->precision == 8) 468 swcode = change_sign8; 469 else if (can16) 470 swcode = swap_bytes; 471 else 472 return EINVAL; 473 break; 474 case AUDIO_ENCODING_ULINEAR_BE: 475 if (p->precision == 8) 476 swcode = 0; 477 else if (can16) 478 swcode = swap_bytes_change_sign16; 479 else 480 return EINVAL; 481 break; 482 case AUDIO_ENCODING_ULAW: 483 swcode = mode == AUMODE_PLAY ? 484 mulaw_to_ulinear8 : ulinear8_to_mulaw; 485 break; 486 default: 487 return EINVAL; 488 } 489 490 491 if (!ISSBPROCLASS(sc)) { 492 /* v 1.x or v 2.x */ 493 if (mode == AUMODE_PLAY) { 494 if (ISSB2CLASS(sc) && SBVER_MINOR(sc->sc_model) > 0) 495 maxspeed = 45454; 496 else 497 maxspeed = 22727; 498 } else 499 maxspeed = 12987; 500 if (p->sample_rate < 4000 || p->sample_rate > maxspeed) 501 return EINVAL; 502 if (p->channels != 1) 503 return EINVAL; 504 } else if (!can16) { 505 /* v 3.x (SBPRO) */ 506 if (p->channels == 1) 507 maxspeed = 45454; 508 else 509 maxspeed = 22727; 510 if (p->sample_rate < 4000 || p->sample_rate > maxspeed) 511 return EINVAL; 512 } else { 513 /* >= v 4.x */ 514 if (p->sample_rate < 4000 || p->sample_rate > 45000) 515 return EINVAL; 516 } 517 518 if (ISSB16CLASS(sc)) { 519 if (mode == AUMODE_RECORD) 520 sc->sc_irate = p->sample_rate; 521 else 522 sc->sc_orate = p->sample_rate; 523 } else { 524 sbdsp_srtotc(sc, p->sample_rate, SB_OUTPUT_RATE, 525 &sc->sc_otc, &sc->sc_omode); 526 p->sample_rate = sbdsp_tctosr(sc, sc->sc_otc); 527 } 528 529 sc->sc_precision = p->precision; 530 sc->sc_channels = p->channels; 531 532 p->sw_code = swcode; 533 534 /* Update setting for the other mode. */ 535 q->encoding = p->encoding; 536 q->channels = p->channels; 537 q->precision = p->precision; 538 539 /* 540 * XXX 541 * Should wait for chip to be idle. 542 */ 543 sc->sc_dmadir = SB_DMA_NONE; 544 545 return 0; 546 } 547 548 void 549 sbdsp_set_ifilter(addr, which) 550 void *addr; 551 int which; 552 { 553 register struct sbdsp_softc *sc = addr; 554 int mixval; 555 556 mixval = sbdsp_mix_read(sc, SBP_INFILTER) & ~SBP_IFILTER_MASK; 557 switch (which) { 558 case 0: 559 mixval |= SBP_FILTER_OFF; 560 break; 561 case SB_TREBLE: 562 mixval |= SBP_FILTER_ON | SBP_IFILTER_HIGH; 563 break; 564 case SB_BASS: 565 mixval |= SBP_FILTER_ON | SBP_IFILTER_LOW; 566 break; 567 default: 568 return; 569 } 570 sc->in_filter = mixval & SBP_IFILTER_MASK; 571 sbdsp_mix_write(sc, SBP_INFILTER, mixval); 572 } 573 574 int 575 sbdsp_get_ifilter(addr) 576 void *addr; 577 { 578 register struct sbdsp_softc *sc = addr; 579 580 sc->in_filter = 581 sbdsp_mix_read(sc, SBP_INFILTER) & SBP_IFILTER_MASK; 582 switch (sc->in_filter) { 583 case SBP_FILTER_ON|SBP_IFILTER_HIGH: 584 return SB_TREBLE; 585 case SBP_FILTER_ON|SBP_IFILTER_LOW: 586 return SB_BASS; 587 default: 588 return 0; 589 } 590 } 591 592 int 593 sbdsp_set_out_port(addr, port) 594 void *addr; 595 int port; 596 { 597 struct sbdsp_softc *sc = addr; 598 599 sc->out_port = port; /* Just record it */ 600 601 return 0; 602 } 603 604 int 605 sbdsp_get_out_port(addr) 606 void *addr; 607 { 608 struct sbdsp_softc *sc = addr; 609 610 return (sc->out_port); 611 } 612 613 614 int 615 sbdsp_set_in_port(addr, port) 616 void *addr; 617 int port; 618 { 619 return sbdsp_set_in_ports(addr, 1 << port); 620 } 621 622 int 623 sbdsp_set_in_ports(sc, mask) 624 struct sbdsp_softc *sc; 625 int mask; 626 { 627 int bitsl, bitsr; 628 int sbport; 629 int i; 630 631 switch(sc->sc_mixer_model) { 632 case SBM_NONE: 633 return EINVAL; 634 case SBM_CT1335: 635 if (mask != (1 << SB_MIC_VOL)) 636 return EINVAL; 637 break; 638 case SBM_CT1345: 639 switch (mask) { 640 case 1 << SB_MIC_VOL: 641 sbport = SBP_FROM_MIC; 642 break; 643 case 1 << SB_LINE_IN_VOL: 644 sbport = SBP_FROM_LINE; 645 break; 646 case 1 << SB_CD_VOL: 647 sbport = SBP_FROM_CD; 648 break; 649 default: 650 return EINVAL; 651 } 652 sbdsp_mix_write(sc, SBP_RECORD_SOURCE, 653 SBP_RECORD_FROM(sbport, SBP_FILTER_OFF, SBP_IFILTER_HIGH)); 654 break; 655 case SBM_CT1745: 656 if (mask & ~((1<<SB_MIDI_VOL) | (1<<SB_LINE_IN_VOL) | 657 (1<<SB_CD_VOL) | (1<<SB_MIC_VOL))) 658 return EINVAL; 659 bitsr = 0; 660 if (mask & SB_MIDI_VOL) bitsr |= SBP_MIDI_SRC_R; 661 if (mask & SB_LINE_IN_VOL) bitsr |= SBP_LINE_SRC_R; 662 if (mask & SB_CD_VOL) bitsr |= SBP_CD_SRC_R; 663 bitsl = SB_SRC_R_TO_L(bitsr); 664 if (mask & SB_MIC_VOL) { 665 bitsl |= SBP_MIC_SRC; 666 bitsr |= SBP_MIC_SRC; 667 } 668 sbdsp_mix_write(sc, SBP_RECORD_SOURCE_L, bitsl); 669 sbdsp_mix_write(sc, SBP_RECORD_SOURCE_R, bitsr); 670 break; 671 } 672 673 sc->in_mask = mask; 674 675 /* XXX 676 * We have to fake a single port since the upper layer 677 * expects one. 678 */ 679 for(i = 0; i < SB_NPORT; i++) { 680 if (mask & (1 << i)) { 681 sc->in_port = i; 682 break; 683 } 684 } 685 return 0; 686 } 687 688 int 689 sbdsp_get_in_port(addr) 690 void *addr; 691 { 692 struct sbdsp_softc *sc = addr; 693 694 return sc->in_port; 695 } 696 697 698 int 699 sbdsp_speaker_ctl(addr, newstate) 700 void *addr; 701 int newstate; 702 { 703 struct sbdsp_softc *sc = addr; 704 705 if ((newstate == SPKR_ON) && 706 (sc->spkr_state == SPKR_OFF)) { 707 sbdsp_spkron(sc); 708 sc->spkr_state = SPKR_ON; 709 } 710 if ((newstate == SPKR_OFF) && 711 (sc->spkr_state == SPKR_ON)) { 712 sbdsp_spkroff(sc); 713 sc->spkr_state = SPKR_OFF; 714 } 715 return(0); 716 } 717 718 int 719 sbdsp_round_blocksize(addr, blk) 720 void *addr; 721 int blk; 722 { 723 struct sbdsp_softc *sc = addr; 724 725 sc->sc_last_hs_size = 0; 726 727 /* Don't try to DMA too much at once. */ 728 if (blk > NBPG) 729 blk = NBPG; 730 731 /* Round to a multiple of the sample size. */ 732 blk &= -(sc->sc_channels * sc->sc_precision / 8); 733 734 if (blk > 1364) 735 blk = 1364; /* XXX allow at least 3 blocks */ 736 737 return (blk); 738 } 739 740 int 741 sbdsp_commit_settings(addr) 742 void *addr; 743 { 744 return 0; 745 } 746 747 int 748 sbdsp_open(sc, dev, flags) 749 register struct sbdsp_softc *sc; 750 dev_t dev; 751 int flags; 752 { 753 DPRINTF(("sbdsp_open: sc=0x%x\n", sc)); 754 755 if (sc->sc_open != 0 || sbdsp_reset(sc) != 0) 756 return ENXIO; 757 758 sc->sc_open = 1; 759 sc->sc_mintr = 0; 760 if (ISSBPROCLASS(sc) && 761 sbdsp_wdsp(sc, SB_DSP_RECORD_MONO) < 0) { 762 DPRINTF(("sbdsp_open: can't set mono mode\n")); 763 /* we'll readjust when it's time for DMA. */ 764 } 765 766 /* 767 * Leave most things as they were; users must change things if 768 * the previous process didn't leave it they way they wanted. 769 * Looked at another way, it's easy to set up a configuration 770 * in one program and leave it for another to inherit. 771 */ 772 DPRINTF(("sbdsp_open: opened\n")); 773 774 return 0; 775 } 776 777 void 778 sbdsp_close(addr) 779 void *addr; 780 { 781 struct sbdsp_softc *sc = addr; 782 783 DPRINTF(("sbdsp_close: sc=0x%x\n", sc)); 784 785 sc->sc_open = 0; 786 sbdsp_spkroff(sc); 787 sc->spkr_state = SPKR_OFF; 788 sc->sc_mintr = 0; 789 sbdsp_haltdma(sc); 790 791 DPRINTF(("sbdsp_close: closed\n")); 792 } 793 794 /* 795 * Lower-level routines 796 */ 797 798 /* 799 * Reset the card. 800 * Return non-zero if the card isn't detected. 801 */ 802 int 803 sbdsp_reset(sc) 804 register struct sbdsp_softc *sc; 805 { 806 bus_space_tag_t iot = sc->sc_iot; 807 bus_space_handle_t ioh = sc->sc_ioh; 808 809 sc->sc_intr = 0; 810 if (sc->sc_dmadir != SB_DMA_NONE) { 811 isa_dmaabort(sc->dmachan); 812 sc->sc_dmadir = SB_DMA_NONE; 813 } 814 sc->sc_last_hs_size = 0; 815 816 /* 817 * See SBK, section 11.3. 818 * We pulse a reset signal into the card. 819 * Gee, what a brilliant hardware design. 820 */ 821 bus_space_write_1(iot, ioh, SBP_DSP_RESET, 1); 822 delay(10); 823 bus_space_write_1(iot, ioh, SBP_DSP_RESET, 0); 824 delay(30); 825 if (sbdsp_rdsp(sc) != SB_MAGIC) 826 return -1; 827 828 return 0; 829 } 830 831 int 832 sbdsp16_wait(sc) 833 struct sbdsp_softc *sc; 834 { 835 bus_space_tag_t iot = sc->sc_iot; 836 bus_space_handle_t ioh = sc->sc_ioh; 837 register int i; 838 839 for (i = SBDSP_NPOLL; --i >= 0; ) { 840 register u_char x; 841 x = bus_space_read_1(iot, ioh, SBP_DSP_WSTAT); 842 delay(10); 843 if ((x & SB_DSP_BUSY) == 0) 844 continue; 845 return 0; 846 } 847 ++sberr.wdsp; 848 return -1; 849 } 850 851 /* 852 * Write a byte to the dsp. 853 * XXX We are at the mercy of the card as we use a 854 * polling loop and wait until it can take the byte. 855 */ 856 int 857 sbdsp_wdsp(sc, v) 858 struct sbdsp_softc *sc; 859 int v; 860 { 861 bus_space_tag_t iot = sc->sc_iot; 862 bus_space_handle_t ioh = sc->sc_ioh; 863 register int i; 864 865 for (i = SBDSP_NPOLL; --i >= 0; ) { 866 register u_char x; 867 x = bus_space_read_1(iot, ioh, SBP_DSP_WSTAT); 868 delay(10); 869 if ((x & SB_DSP_BUSY) != 0) 870 continue; 871 bus_space_write_1(iot, ioh, SBP_DSP_WRITE, v); 872 delay(10); 873 return 0; 874 } 875 ++sberr.wdsp; 876 return -1; 877 } 878 879 /* 880 * Read a byte from the DSP, using polling. 881 */ 882 int 883 sbdsp_rdsp(sc) 884 struct sbdsp_softc *sc; 885 { 886 bus_space_tag_t iot = sc->sc_iot; 887 bus_space_handle_t ioh = sc->sc_ioh; 888 register int i; 889 890 for (i = SBDSP_NPOLL; --i >= 0; ) { 891 register u_char x; 892 x = bus_space_read_1(iot, ioh, SBP_DSP_RSTAT); 893 delay(10); 894 if ((x & SB_DSP_READY) == 0) 895 continue; 896 x = bus_space_read_1(iot, ioh, SBP_DSP_READ); 897 delay(10); 898 return x; 899 } 900 ++sberr.rdsp; 901 return -1; 902 } 903 904 /* 905 * Doing certain things (like toggling the speaker) make 906 * the SB hardware go away for a while, so pause a little. 907 */ 908 void 909 sbdsp_to(arg) 910 void *arg; 911 { 912 wakeup(arg); 913 } 914 915 void 916 sbdsp_pause(sc) 917 struct sbdsp_softc *sc; 918 { 919 extern int hz; 920 921 timeout(sbdsp_to, sbdsp_to, hz/8); 922 (void)tsleep(sbdsp_to, PWAIT, "sbpause", 0); 923 } 924 925 /* 926 * Turn on the speaker. The SBK documention says this operation 927 * can take up to 1/10 of a second. Higher level layers should 928 * probably let the task sleep for this amount of time after 929 * calling here. Otherwise, things might not work (because 930 * sbdsp_wdsp() and sbdsp_rdsp() will probably timeout.) 931 * 932 * These engineers had their heads up their ass when 933 * they designed this card. 934 */ 935 void 936 sbdsp_spkron(sc) 937 struct sbdsp_softc *sc; 938 { 939 (void)sbdsp_wdsp(sc, SB_DSP_SPKR_ON); 940 sbdsp_pause(sc); 941 } 942 943 /* 944 * Turn off the speaker; see comment above. 945 */ 946 void 947 sbdsp_spkroff(sc) 948 struct sbdsp_softc *sc; 949 { 950 (void)sbdsp_wdsp(sc, SB_DSP_SPKR_OFF); 951 sbdsp_pause(sc); 952 } 953 954 /* 955 * Read the version number out of the card. Return major code 956 * in high byte, and minor code in low byte. 957 */ 958 short 959 sbversion(sc) 960 struct sbdsp_softc *sc; 961 { 962 short v; 963 964 if (sbdsp_wdsp(sc, SB_DSP_VERSION) < 0) 965 return 0; 966 v = sbdsp_rdsp(sc) << 8; 967 v |= sbdsp_rdsp(sc); 968 return ((v >= 0) ? v : 0); 969 } 970 971 /* 972 * Halt a DMA in progress. A low-speed transfer can be 973 * resumed with sbdsp_contdma(). 974 */ 975 int 976 sbdsp_haltdma(addr) 977 void *addr; 978 { 979 register struct sbdsp_softc *sc = addr; 980 981 DPRINTF(("sbdsp_haltdma: sc=0x%x\n", sc)); 982 983 sbdsp_reset(sc); 984 return 0; 985 } 986 987 int 988 sbdsp_contdma(addr) 989 void *addr; 990 { 991 register struct sbdsp_softc *sc = addr; 992 993 DPRINTF(("sbdsp_contdma: sc=0x%x\n", sc)); 994 995 /* XXX how do we reinitialize the DMA controller state? do we care? */ 996 (void)sbdsp_wdsp(sc, SB_DSP_CONT); 997 return(0); 998 } 999 1000 /* 1001 * Convert a linear sampling rate into the DAC time constant. 1002 * Set *mode to indicate the high/low-speed DMA operation. 1003 * Because of limitations of the card, not all rates are possible. 1004 * We return the time constant of the closest possible rate. 1005 * The sampling rate limits are different for the DAC and ADC, 1006 * so isdac indicates output, and !isdac indicates input. 1007 */ 1008 void 1009 sbdsp_srtotc(sc, sr, isdac, tcp, modep) 1010 register struct sbdsp_softc *sc; 1011 int sr; 1012 int isdac; 1013 int *tcp, *modep; 1014 { 1015 int tc, realtc, mode; 1016 1017 /* 1018 * Don't forget to compute which mode we'll be in based on whether 1019 * we need to double the rate for stereo on SBPRO. 1020 */ 1021 1022 if (sr == 0) { 1023 tc = SB_LS_MIN; 1024 mode = SB_ADAC_LS; 1025 goto out; 1026 } 1027 1028 tc = 256 - (1000000 / sr); 1029 1030 if (sc->sc_channels == 2 && ISSBPRO(sc)) 1031 /* compute based on 2x sample rate when needed */ 1032 realtc = 256 - ( 500000 / sr); 1033 else 1034 realtc = tc; 1035 1036 if (tc < SB_LS_MIN) { 1037 tc = SB_LS_MIN; 1038 mode = SB_ADAC_LS; /* NB: 2x minimum speed is still low 1039 * speed mode. */ 1040 goto out; 1041 } else if (isdac) { 1042 if (realtc <= SB_DAC_LS_MAX) 1043 mode = SB_ADAC_LS; 1044 else { 1045 mode = SB_ADAC_HS; 1046 if (tc > SB_DAC_HS_MAX) 1047 tc = SB_DAC_HS_MAX; 1048 } 1049 } else { 1050 int adc_ls_max, adc_hs_max; 1051 1052 /* XXX use better rounding--compare distance to nearest tc on both 1053 sides of requested speed */ 1054 if (ISSBPROCLASS(sc)) { 1055 adc_ls_max = SBPRO_ADC_LS_MAX; 1056 adc_hs_max = SBPRO_ADC_HS_MAX; 1057 } else { 1058 adc_ls_max = SBCLA_ADC_LS_MAX; 1059 adc_hs_max = SBCLA_ADC_HS_MAX; 1060 } 1061 1062 if (realtc <= adc_ls_max) 1063 mode = SB_ADAC_LS; 1064 else { 1065 mode = SB_ADAC_HS; 1066 if (tc > adc_hs_max) 1067 tc = adc_hs_max; 1068 } 1069 } 1070 1071 out: 1072 *tcp = tc; 1073 *modep = mode; 1074 } 1075 1076 /* 1077 * Convert a DAC time constant to a sampling rate. 1078 * See SBK, section 12. 1079 */ 1080 int 1081 sbdsp_tctosr(sc, tc) 1082 register struct sbdsp_softc *sc; 1083 int tc; 1084 { 1085 int adc; 1086 1087 if (ISSBPROCLASS(sc)) 1088 adc = SBPRO_ADC_HS_MAX; 1089 else 1090 adc = SBCLA_ADC_HS_MAX; 1091 1092 if (tc > adc) 1093 tc = adc; 1094 1095 return (1000000 / (256 - tc)); 1096 } 1097 1098 int 1099 sbdsp_set_timeconst(sc, tc) 1100 register struct sbdsp_softc *sc; 1101 int tc; 1102 { 1103 /* 1104 * A SBPro in stereo mode uses time constants at double the 1105 * actual rate. 1106 */ 1107 if (ISSBPRO(sc) && sc->sc_channels == 2) 1108 tc = 256 - ((256 - tc) / 2); 1109 1110 DPRINTF(("sbdsp_set_timeconst: sc=%p tc=%d\n", sc, tc)); 1111 1112 if (sbdsp_wdsp(sc, SB_DSP_TIMECONST) < 0 || 1113 sbdsp_wdsp(sc, tc) < 0) 1114 return (EIO); 1115 1116 return (0); 1117 } 1118 1119 int 1120 sbdsp_dma_input(addr, p, cc, intr, arg) 1121 void *addr; 1122 void *p; 1123 int cc; 1124 void (*intr) __P((void *)); 1125 void *arg; 1126 { 1127 register struct sbdsp_softc *sc = addr; 1128 1129 #ifdef AUDIO_DEBUG 1130 if (sbdspdebug > 1) 1131 Dprintf("sbdsp_dma_input: cc=%d 0x%x (0x%x)\n", cc, intr, arg); 1132 #endif 1133 if (sc->sc_channels == 2 && (cc & 1)) { 1134 DPRINTF(("sbdsp_dma_input: stereo input, odd bytecnt\n")); 1135 return EIO; 1136 } 1137 1138 if (sc->sc_dmadir != SB_DMA_IN) { 1139 if (ISSBPRO(sc)) { 1140 if (sc->sc_channels == 2) { 1141 if (ISJAZZ16(sc) && sc->sc_precision == 16) { 1142 if (sbdsp_wdsp(sc, 1143 JAZZ16_RECORD_STEREO) < 0) { 1144 goto badmode; 1145 } 1146 } else if (sbdsp_wdsp(sc, 1147 SB_DSP_RECORD_STEREO) < 0) 1148 goto badmode; 1149 sbdsp_mix_write(sc, SBP_INFILTER, 1150 (sbdsp_mix_read(sc, SBP_INFILTER) & 1151 ~SBP_IFILTER_MASK) | SBP_FILTER_OFF); 1152 } else { 1153 if (ISJAZZ16(sc) && sc->sc_precision == 16) { 1154 if (sbdsp_wdsp(sc, 1155 JAZZ16_RECORD_MONO) < 0) 1156 { 1157 goto badmode; 1158 } 1159 } else if (sbdsp_wdsp(sc, SB_DSP_RECORD_MONO) < 0) 1160 goto badmode; 1161 sbdsp_mix_write(sc, SBP_INFILTER, 1162 (sbdsp_mix_read(sc, SBP_INFILTER) & 1163 ~SBP_IFILTER_MASK) | sc->in_filter); 1164 } 1165 } 1166 1167 if (ISSB16CLASS(sc)) { 1168 if (sbdsp_wdsp(sc, SB_DSP16_INPUTRATE) < 0 || 1169 sbdsp_wdsp(sc, sc->sc_irate >> 8) < 0 || 1170 sbdsp_wdsp(sc, sc->sc_irate) < 0) 1171 goto giveup; 1172 } else 1173 sbdsp_set_timeconst(sc, sc->sc_itc); 1174 1175 sc->sc_dmadir = SB_DMA_IN; 1176 sc->dmaflags = DMAMODE_READ; 1177 if (ISSB2CLASS(sc)) 1178 sc->dmaflags |= DMAMODE_LOOP; 1179 } else { 1180 /* Already started; just return. */ 1181 if (ISSB2CLASS(sc)) 1182 return 0; 1183 } 1184 1185 sc->dmaaddr = p; 1186 sc->dmacnt = ISSB2CLASS(sc) ? (NBPG/cc)*cc : cc; 1187 sc->dmachan = sc->sc_precision == 16 ? sc->sc_drq16 : sc->sc_drq8; 1188 isa_dmastart(sc->dmaflags, sc->dmaaddr, sc->dmacnt, sc->dmachan); 1189 sc->sc_intr = intr; 1190 sc->sc_arg = arg; 1191 1192 if (sc->sc_precision == 16) 1193 cc >>= 1; 1194 --cc; 1195 if (ISSB16CLASS(sc)) { 1196 if (sbdsp_wdsp(sc, sc->sc_precision == 16 ? SB_DSP16_RDMA_16 : 1197 SB_DSP16_RDMA_8) < 0 || 1198 sbdsp_wdsp(sc, (sc->sc_precision == 16 ? 0x10 : 0x00) | 1199 (sc->sc_channels == 2 ? 0x20 : 0x00)) < 0 || 1200 sbdsp16_wait(sc) || 1201 sbdsp_wdsp(sc, cc) < 0 || 1202 sbdsp_wdsp(sc, cc >> 8) < 0) { 1203 DPRINTF(("sbdsp_dma_input: SB16 DMA start failed\n")); 1204 goto giveup; 1205 } 1206 } else if (ISSB2CLASS(sc)) { 1207 if (cc != sc->sc_last_hs_size) { 1208 if (sbdsp_wdsp(sc, SB_DSP_BLOCKSIZE) < 0 || 1209 sbdsp_wdsp(sc, cc) < 0 || 1210 sbdsp_wdsp(sc, cc >> 8) < 0) { 1211 DPRINTF(("sbdsp_dma_input: SB2 DMA start failed\n")); 1212 goto giveup; 1213 } 1214 sc->sc_last_hs_size = cc; 1215 } 1216 if (sbdsp_wdsp(sc, 1217 sc->sc_imode == SB_ADAC_LS ? SB_DSP_RDMA_LOOP : 1218 SB_DSP_HS_INPUT) < 0) { 1219 DPRINTF(("sbdsp_dma_input: SB2 DMA restart failed\n")); 1220 goto giveup; 1221 } 1222 } else { 1223 if (sbdsp_wdsp(sc, SB_DSP_RDMA) < 0 || 1224 sbdsp_wdsp(sc, cc) < 0 || 1225 sbdsp_wdsp(sc, cc >> 8) < 0) { 1226 DPRINTF(("sbdsp_dma_input: SB1 DMA start failed\n")); 1227 goto giveup; 1228 } 1229 } 1230 return 0; 1231 1232 giveup: 1233 sbdsp_reset(sc); 1234 return EIO; 1235 1236 badmode: 1237 DPRINTF(("sbdsp_dma_input: can't set %s mode\n", 1238 sc->sc_channels == 2 ? "stereo" : "mono")); 1239 return EIO; 1240 } 1241 1242 int 1243 sbdsp_dma_output(addr, p, cc, intr, arg) 1244 void *addr; 1245 void *p; 1246 int cc; 1247 void (*intr) __P((void *)); 1248 void *arg; 1249 { 1250 register struct sbdsp_softc *sc = addr; 1251 1252 #ifdef AUDIO_DEBUG 1253 if (sbdspdebug > 1) 1254 Dprintf("sbdsp_dma_output: cc=%d 0x%x (0x%x)\n", cc, intr, arg); 1255 #endif 1256 if (sc->sc_channels == 2 && (cc & 1)) { 1257 DPRINTF(("stereo playback odd bytes (%d)\n", cc)); 1258 return EIO; 1259 } 1260 1261 if (sc->sc_dmadir != SB_DMA_OUT) { 1262 if (ISSBPRO(sc)) { 1263 /* make sure we re-set stereo mixer bit when we start 1264 output. */ 1265 sbdsp_mix_write(sc, SBP_STEREO, 1266 (sbdsp_mix_read(sc, SBP_STEREO) & ~SBP_PLAYMODE_MASK) | 1267 (sc->sc_channels == 2 ? SBP_PLAYMODE_STEREO : SBP_PLAYMODE_MONO)); 1268 if (ISJAZZ16(sc)) { 1269 /* Yes, we write the record mode to set 1270 16-bit playback mode. weird, huh? */ 1271 if (sc->sc_precision == 16) { 1272 sbdsp_wdsp(sc, 1273 sc->sc_channels == 2 ? 1274 JAZZ16_RECORD_STEREO : 1275 JAZZ16_RECORD_MONO); 1276 } else { 1277 sbdsp_wdsp(sc, 1278 sc->sc_channels == 2 ? 1279 SB_DSP_RECORD_STEREO : 1280 SB_DSP_RECORD_MONO); 1281 } 1282 } 1283 } 1284 1285 if (ISSB16CLASS(sc)) { 1286 if (sbdsp_wdsp(sc, SB_DSP16_OUTPUTRATE) < 0 || 1287 sbdsp_wdsp(sc, sc->sc_orate >> 8) < 0 || 1288 sbdsp_wdsp(sc, sc->sc_orate) < 0) 1289 goto giveup; 1290 } else 1291 sbdsp_set_timeconst(sc, sc->sc_otc); 1292 1293 sc->sc_dmadir = SB_DMA_OUT; 1294 sc->dmaflags = DMAMODE_WRITE; 1295 if (ISSB2CLASS(sc)) 1296 sc->dmaflags |= DMAMODE_LOOP; 1297 } else { 1298 /* Already started; just return. */ 1299 if (ISSB2CLASS(sc)) 1300 return 0; 1301 } 1302 1303 sc->dmaaddr = p; 1304 sc->dmacnt = ISSB2CLASS(sc) ? (NBPG/cc)*cc : cc; 1305 sc->dmachan = sc->sc_precision == 16 ? sc->sc_drq16 : sc->sc_drq8; 1306 isa_dmastart(sc->dmaflags, sc->dmaaddr, sc->dmacnt, sc->dmachan); 1307 sc->sc_intr = intr; 1308 sc->sc_arg = arg; 1309 1310 if (sc->sc_precision == 16) 1311 cc >>= 1; 1312 --cc; 1313 if (ISSB16CLASS(sc)) { 1314 if (sbdsp_wdsp(sc, sc->sc_precision == 16 ? SB_DSP16_WDMA_16 : 1315 SB_DSP16_WDMA_8) < 0 || 1316 sbdsp_wdsp(sc, (sc->sc_precision == 16 ? 0x10 : 0x00) | 1317 (sc->sc_channels == 2 ? 0x20 : 0x00)) < 0 || 1318 sbdsp16_wait(sc) || 1319 sbdsp_wdsp(sc, cc) < 0 || 1320 sbdsp_wdsp(sc, cc >> 8) < 0) { 1321 DPRINTF(("sbdsp_dma_output: SB16 DMA start failed\n")); 1322 goto giveup; 1323 } 1324 } else if (ISSB2CLASS(sc)) { 1325 if (cc != sc->sc_last_hs_size) { 1326 if (sbdsp_wdsp(sc, SB_DSP_BLOCKSIZE) < 0 || 1327 sbdsp_wdsp(sc, cc) < 0 || 1328 sbdsp_wdsp(sc, cc >> 8) < 0) { 1329 DPRINTF(("sbdsp_dma_output: SB2 DMA start failed\n")); 1330 goto giveup; 1331 } 1332 sc->sc_last_hs_size = cc; 1333 } 1334 if (sbdsp_wdsp(sc, 1335 sc->sc_omode == SB_ADAC_LS ? SB_DSP_WDMA_LOOP : 1336 SB_DSP_HS_OUTPUT) < 0) { 1337 DPRINTF(("sbdsp_dma_output: SB2 DMA restart failed\n")); 1338 goto giveup; 1339 } 1340 } else { 1341 if (sbdsp_wdsp(sc, SB_DSP_WDMA) < 0 || 1342 sbdsp_wdsp(sc, cc) < 0 || 1343 sbdsp_wdsp(sc, cc >> 8) < 0) { 1344 DPRINTF(("sbdsp_dma_output: SB1 DMA start failed\n")); 1345 goto giveup; 1346 } 1347 } 1348 return 0; 1349 1350 giveup: 1351 sbdsp_reset(sc); 1352 return EIO; 1353 } 1354 1355 /* 1356 * Only the DSP unit on the sound blaster generates interrupts. 1357 * There are three cases of interrupt: reception of a midi byte 1358 * (when mode is enabled), completion of dma transmission, or 1359 * completion of a dma reception. The three modes are mutually 1360 * exclusive so we know a priori which event has occurred. 1361 */ 1362 int 1363 sbdsp_intr(arg) 1364 void *arg; 1365 { 1366 register struct sbdsp_softc *sc = arg; 1367 u_char x; 1368 1369 #ifdef AUDIO_DEBUG 1370 if (sbdspdebug > 1) 1371 Dprintf("sbdsp_intr: intr=0x%x\n", sc->sc_intr); 1372 #endif 1373 if (ISSB16CLASS(sc)) { 1374 x = sbdsp_mix_read(sc, SBP_IRQ_STATUS); 1375 if ((x & 3) == 0) 1376 return 0; 1377 } else { 1378 if (!isa_dmafinished(sc->dmachan)) 1379 return 0; 1380 } 1381 sc->sc_interrupts++; 1382 delay(10); 1383 #if 0 1384 if (sc->sc_mintr != 0) { 1385 x = sbdsp_rdsp(sc); 1386 (*sc->sc_mintr)(sc->sc_arg, x); 1387 } else 1388 #endif 1389 if (sc->sc_intr != 0) { 1390 /* clear interrupt */ 1391 bus_space_read_1(sc->sc_iot, sc->sc_ioh, 1392 sc->sc_precision == 16 ? SBP_DSP_IRQACK16 : 1393 SBP_DSP_IRQACK8); 1394 if (!ISSB2CLASS(sc)) 1395 isa_dmadone(sc->dmaflags, sc->dmaaddr, sc->dmacnt, 1396 sc->dmachan); 1397 (*sc->sc_intr)(sc->sc_arg); 1398 } else { 1399 return 0; 1400 } 1401 return 1; 1402 } 1403 1404 #if 0 1405 /* 1406 * Enter midi uart mode and arrange for read interrupts 1407 * to vector to `intr'. This puts the card in a mode 1408 * which allows only midi I/O; the card must be reset 1409 * to leave this mode. Unfortunately, the card does not 1410 * use transmit interrupts, so bytes must be output 1411 * using polling. To keep the polling overhead to a 1412 * minimum, output should be driven off a timer. 1413 * This is a little tricky since only 320us separate 1414 * consecutive midi bytes. 1415 */ 1416 void 1417 sbdsp_set_midi_mode(sc, intr, arg) 1418 struct sbdsp_softc *sc; 1419 void (*intr)(); 1420 void *arg; 1421 { 1422 1423 sbdsp_wdsp(sc, SB_MIDI_UART_INTR); 1424 sc->sc_mintr = intr; 1425 sc->sc_intr = 0; 1426 sc->sc_arg = arg; 1427 } 1428 1429 /* 1430 * Write a byte to the midi port, when in midi uart mode. 1431 */ 1432 void 1433 sbdsp_midi_output(sc, v) 1434 struct sbdsp_softc *sc; 1435 int v; 1436 { 1437 1438 if (sbdsp_wdsp(sc, v) < 0) 1439 ++sberr.wmidi; 1440 } 1441 #endif 1442 1443 int 1444 sbdsp_setfd(addr, flag) 1445 void *addr; 1446 int flag; 1447 { 1448 /* Can't do full-duplex */ 1449 return(ENOTTY); 1450 } 1451 1452 void 1453 sbdsp_set_mixer_gain(sc, port) 1454 struct sbdsp_softc *sc; 1455 int port; 1456 { 1457 int src, gain; 1458 1459 switch(sc->sc_mixer_model) { 1460 case SBM_NONE: 1461 return; 1462 case SBM_CT1335: 1463 gain = SB_1335_GAIN(sc->gain[port][SB_LEFT]); 1464 switch(port) { 1465 case SB_MASTER_VOL: 1466 src = SBP_1335_MASTER_VOL; 1467 break; 1468 case SB_MIDI_VOL: 1469 src = SBP_1335_MIDI_VOL; 1470 break; 1471 case SB_CD_VOL: 1472 src = SBP_1335_CD_VOL; 1473 break; 1474 case SB_VOICE_VOL: 1475 src = SBP_1335_VOICE_VOL; 1476 gain = SB_1335_MASTER_GAIN(sc->gain[port][SB_LEFT]); 1477 break; 1478 default: 1479 return; 1480 } 1481 sbdsp_mix_write(sc, src, gain); 1482 break; 1483 case SBM_CT1345: 1484 gain = SB_STEREO_GAIN(sc->gain[port][SB_LEFT], 1485 sc->gain[port][SB_RIGHT]); 1486 switch (port) { 1487 case SB_MIC_VOL: 1488 src = SBP_MIC_VOL; 1489 gain = SB_MIC_GAIN(sc->gain[port][SB_LEFT]); 1490 break; 1491 case SB_MASTER_VOL: 1492 src = SBP_MASTER_VOL; 1493 break; 1494 case SB_LINE_IN_VOL: 1495 src = SBP_LINE_VOL; 1496 break; 1497 case SB_VOICE_VOL: 1498 src = SBP_VOICE_VOL; 1499 break; 1500 case SB_MIDI_VOL: 1501 src = SBP_MIDI_VOL; 1502 break; 1503 case SB_CD_VOL: 1504 src = SBP_CD_VOL; 1505 break; 1506 default: 1507 return; 1508 } 1509 sbdsp_mix_write(sc, src, gain); 1510 break; 1511 case SBM_CT1745: 1512 switch (port) { 1513 case SB_MIC_VOL: 1514 src = SB16P_MIC_L; 1515 break; 1516 case SB_MASTER_VOL: 1517 src = SB16P_MASTER_L; 1518 break; 1519 case SB_LINE_IN_VOL: 1520 src = SB16P_LINE_L; 1521 break; 1522 case SB_VOICE_VOL: 1523 src = SB16P_VOICE_L; 1524 break; 1525 case SB_MIDI_VOL: 1526 src = SB16P_MIDI_L; 1527 break; 1528 case SB_CD_VOL: 1529 src = SB16P_CD_L; 1530 break; 1531 case SB_INPUT_GAIN: 1532 src = SB16P_INPUT_GAIN_L; 1533 break; 1534 case SB_OUTPUT_GAIN: 1535 src = SB16P_OUTPUT_GAIN_L; 1536 break; 1537 case SB_TREBLE: 1538 src = SB16P_TREBLE_L; 1539 break; 1540 case SB_BASS: 1541 src = SB16P_BASS_L; 1542 break; 1543 case SB_PCSPEAKER: 1544 sbdsp_mix_write(sc, SB16P_PCSPEAKER, sc->gain[port][SB_LEFT]); 1545 return; 1546 default: 1547 return; 1548 } 1549 sbdsp_mix_write(sc, src, sc->gain[port][SB_LEFT]); 1550 sbdsp_mix_write(sc, SB16P_L_TO_R(src), sc->gain[port][SB_RIGHT]); 1551 break; 1552 } 1553 } 1554 1555 int 1556 sbdsp_mixer_set_port(addr, cp) 1557 void *addr; 1558 mixer_ctrl_t *cp; 1559 { 1560 register struct sbdsp_softc *sc = addr; 1561 int lgain, rgain; 1562 1563 DPRINTF(("sbdsp_mixer_set_port: port=%d num_channels=%d\n", cp->dev, 1564 cp->un.value.num_channels)); 1565 1566 if (sc->sc_mixer_model == SBM_NONE) 1567 return EINVAL; 1568 1569 switch (cp->dev) { 1570 case SB_TREBLE: 1571 case SB_BASS: 1572 if (sc->sc_mixer_model == SBM_CT1345) { 1573 if (cp->type != AUDIO_MIXER_ENUM) 1574 return EINVAL; 1575 switch (cp->dev) { 1576 case SB_TREBLE: 1577 sbdsp_set_ifilter(addr, cp->un.ord ? SB_TREBLE : 0); 1578 return 0; 1579 case SB_BASS: 1580 sbdsp_set_ifilter(addr, cp->un.ord ? SB_BASS : 0); 1581 return 0; 1582 } 1583 } 1584 case SB_PCSPEAKER: 1585 case SB_INPUT_GAIN: 1586 case SB_OUTPUT_GAIN: 1587 if (sc->sc_mixer_model != SBM_CT1745) 1588 return EINVAL; 1589 case SB_MIC_VOL: 1590 case SB_LINE_IN_VOL: 1591 if (sc->sc_mixer_model == SBM_CT1335) 1592 return EINVAL; 1593 case SB_VOICE_VOL: 1594 case SB_MIDI_VOL: 1595 case SB_CD_VOL: 1596 case SB_MASTER_VOL: 1597 if (cp->type != AUDIO_MIXER_VALUE) 1598 return EINVAL; 1599 1600 /* 1601 * All the mixer ports are stereo except for the microphone. 1602 * If we get a single-channel gain value passed in, then we 1603 * duplicate it to both left and right channels. 1604 */ 1605 1606 switch (cp->dev) { 1607 case SB_MIC_VOL: 1608 if (cp->un.value.num_channels != 1) 1609 return EINVAL; 1610 1611 lgain = rgain = SB_ADJUST_MIC_GAIN(sc, 1612 cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]); 1613 break; 1614 case SB_PCSPEAKER: 1615 if (cp->un.value.num_channels != 1) 1616 return EINVAL; 1617 /* fall into */ 1618 case SB_INPUT_GAIN: 1619 case SB_OUTPUT_GAIN: 1620 lgain = rgain = SB_ADJUST_2_GAIN(sc, 1621 cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]); 1622 break; 1623 default: 1624 switch (cp->un.value.num_channels) { 1625 case 1: 1626 lgain = rgain = SB_ADJUST_GAIN(sc, 1627 cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]); 1628 break; 1629 case 2: 1630 if (sc->sc_mixer_model == SBM_CT1335) 1631 return EINVAL; 1632 lgain = SB_ADJUST_GAIN(sc, 1633 cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT]); 1634 rgain = SB_ADJUST_GAIN(sc, 1635 cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT]); 1636 break; 1637 default: 1638 return EINVAL; 1639 } 1640 break; 1641 } 1642 sc->gain[cp->dev][SB_LEFT] = lgain; 1643 sc->gain[cp->dev][SB_RIGHT] = rgain; 1644 1645 sbdsp_set_mixer_gain(sc, cp->dev); 1646 break; 1647 1648 case SB_RECORD_SOURCE: 1649 if (sc->sc_mixer_model == SBM_CT1745) { 1650 if (cp->type != AUDIO_MIXER_SET) 1651 return EINVAL; 1652 return sbdsp_set_in_ports(sc, cp->un.mask); 1653 } else { 1654 if (cp->type != AUDIO_MIXER_ENUM) 1655 return EINVAL; 1656 return sbdsp_set_in_port(sc, cp->un.ord); 1657 } 1658 break; 1659 1660 case SB_AGC: 1661 if (sc->sc_mixer_model != SBM_CT1745 || cp->type != AUDIO_MIXER_ENUM) 1662 return EINVAL; 1663 sbdsp_mix_write(sc, SB16P_AGC, cp->un.ord & 1); 1664 break; 1665 1666 default: 1667 return EINVAL; 1668 } 1669 1670 return 0; 1671 } 1672 1673 int 1674 sbdsp_mixer_get_port(addr, cp) 1675 void *addr; 1676 mixer_ctrl_t *cp; 1677 { 1678 register struct sbdsp_softc *sc = addr; 1679 1680 DPRINTF(("sbdsp_mixer_get_port: port=%d\n", cp->dev)); 1681 1682 if (sc->sc_mixer_model == SBM_NONE) 1683 return EINVAL; 1684 1685 switch (cp->dev) { 1686 case SB_TREBLE: 1687 case SB_BASS: 1688 if (sc->sc_mixer_model == SBM_CT1345) { 1689 switch (cp->dev) { 1690 case SB_TREBLE: 1691 cp->un.ord = sbdsp_get_ifilter(addr) == SB_TREBLE; 1692 return 0; 1693 case SB_BASS: 1694 cp->un.ord = sbdsp_get_ifilter(addr) == SB_BASS; 1695 return 0; 1696 } 1697 } 1698 case SB_PCSPEAKER: 1699 case SB_INPUT_GAIN: 1700 case SB_OUTPUT_GAIN: 1701 if (sc->sc_mixer_model != SBM_CT1745) 1702 return EINVAL; 1703 case SB_MIC_VOL: 1704 case SB_LINE_IN_VOL: 1705 if (sc->sc_mixer_model == SBM_CT1335) 1706 return EINVAL; 1707 case SB_VOICE_VOL: 1708 case SB_MIDI_VOL: 1709 case SB_CD_VOL: 1710 case SB_MASTER_VOL: 1711 switch (cp->dev) { 1712 case SB_MIC_VOL: 1713 case SB_PCSPEAKER: 1714 if (cp->un.value.num_channels != 1) 1715 return EINVAL; 1716 /* fall into */ 1717 default: 1718 switch (cp->un.value.num_channels) { 1719 case 1: 1720 cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = 1721 sc->gain[cp->dev][SB_LEFT]; 1722 break; 1723 case 2: 1724 cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = 1725 sc->gain[cp->dev][SB_LEFT]; 1726 cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = 1727 sc->gain[cp->dev][SB_RIGHT]; 1728 break; 1729 default: 1730 return EINVAL; 1731 } 1732 break; 1733 } 1734 break; 1735 1736 case SB_RECORD_SOURCE: 1737 if (sc->sc_mixer_model == SBM_CT1745) 1738 cp->un.mask = sc->in_mask; 1739 else 1740 cp->un.ord = sc->in_port; 1741 break; 1742 1743 case SB_AGC: 1744 if (sc->sc_mixer_model != SBM_CT1745) 1745 return EINVAL; 1746 cp->un.ord = sbdsp_mix_read(sc, SB16P_AGC); 1747 break; 1748 1749 default: 1750 return EINVAL; 1751 } 1752 1753 return (0); 1754 } 1755 1756 int 1757 sbdsp_mixer_query_devinfo(addr, dip) 1758 void *addr; 1759 mixer_devinfo_t *dip; 1760 { 1761 struct sbdsp_softc *sc = addr; 1762 int chan, class; 1763 1764 DPRINTF(("sbdsp_mixer_query_devinfo: index=%d\n", dip->index)); 1765 1766 if (sc->sc_mixer_model == SBM_NONE) 1767 return ENXIO; 1768 1769 chan = sc->sc_mixer_model == SBM_CT1335 ? 1 : 2; 1770 class = sc->sc_mixer_model == SBM_CT1745 ? SB_INPUT_CLASS : SB_OUTPUT_CLASS; 1771 1772 switch (dip->index) { 1773 case SB_MASTER_VOL: 1774 dip->type = AUDIO_MIXER_VALUE; 1775 dip->mixer_class = SB_OUTPUT_CLASS; 1776 dip->prev = dip->next = AUDIO_MIXER_LAST; 1777 strcpy(dip->label.name, AudioNmaster); 1778 dip->un.v.num_channels = chan; 1779 strcpy(dip->un.v.units.name, AudioNvolume); 1780 return 0; 1781 case SB_MIDI_VOL: 1782 dip->type = AUDIO_MIXER_VALUE; 1783 dip->mixer_class = class; 1784 dip->prev = AUDIO_MIXER_LAST; 1785 dip->next = AUDIO_MIXER_LAST; 1786 strcpy(dip->label.name, AudioNfmsynth); 1787 dip->un.v.num_channels = chan; 1788 strcpy(dip->un.v.units.name, AudioNvolume); 1789 return 0; 1790 case SB_CD_VOL: 1791 dip->type = AUDIO_MIXER_VALUE; 1792 dip->mixer_class = class; 1793 dip->prev = AUDIO_MIXER_LAST; 1794 dip->next = AUDIO_MIXER_LAST; 1795 strcpy(dip->label.name, AudioNcd); 1796 dip->un.v.num_channels = chan; 1797 strcpy(dip->un.v.units.name, AudioNvolume); 1798 return 0; 1799 case SB_VOICE_VOL: 1800 dip->type = AUDIO_MIXER_VALUE; 1801 dip->mixer_class = class; 1802 dip->prev = AUDIO_MIXER_LAST; 1803 dip->next = AUDIO_MIXER_LAST; 1804 strcpy(dip->label.name, AudioNdac); 1805 dip->un.v.num_channels = chan; 1806 strcpy(dip->un.v.units.name, AudioNvolume); 1807 return 0; 1808 case SB_OUTPUT_CLASS: 1809 dip->type = AUDIO_MIXER_CLASS; 1810 dip->mixer_class = SB_OUTPUT_CLASS; 1811 dip->next = dip->prev = AUDIO_MIXER_LAST; 1812 strcpy(dip->label.name, AudioCOutputs); 1813 return 0; 1814 } 1815 1816 if (sc->sc_mixer_model == SBM_CT1335) 1817 return ENXIO; 1818 1819 switch (dip->index) { 1820 case SB_MIC_VOL: 1821 dip->type = AUDIO_MIXER_VALUE; 1822 dip->mixer_class = class; 1823 dip->prev = AUDIO_MIXER_LAST; 1824 dip->next = AUDIO_MIXER_LAST; 1825 strcpy(dip->label.name, AudioNmicrophone); 1826 dip->un.v.num_channels = 1; 1827 strcpy(dip->un.v.units.name, AudioNvolume); 1828 return 0; 1829 1830 case SB_LINE_IN_VOL: 1831 dip->type = AUDIO_MIXER_VALUE; 1832 dip->mixer_class = class; 1833 dip->prev = AUDIO_MIXER_LAST; 1834 dip->next = AUDIO_MIXER_LAST; 1835 strcpy(dip->label.name, AudioNline); 1836 dip->un.v.num_channels = 2; 1837 strcpy(dip->un.v.units.name, AudioNvolume); 1838 return 0; 1839 1840 case SB_RECORD_SOURCE: 1841 dip->mixer_class = SB_RECORD_CLASS; 1842 dip->prev = dip->next = AUDIO_MIXER_LAST; 1843 strcpy(dip->label.name, AudioNsource); 1844 if (sc->sc_mixer_model == SBM_CT1745) { 1845 dip->type = AUDIO_MIXER_SET; 1846 dip->un.s.num_mem = 4; 1847 strcpy(dip->un.s.member[0].label.name, AudioNmicrophone); 1848 dip->un.s.member[0].mask = 1 << SB_MIC_VOL; 1849 strcpy(dip->un.s.member[1].label.name, AudioNcd); 1850 dip->un.s.member[1].mask = 1 << SB_CD_VOL; 1851 strcpy(dip->un.s.member[2].label.name, AudioNline); 1852 dip->un.s.member[2].mask = 1 << SB_LINE_IN_VOL; 1853 strcpy(dip->un.s.member[3].label.name, AudioNfmsynth); 1854 dip->un.s.member[3].mask = 1 << SB_MIDI_VOL; 1855 } else { 1856 dip->type = AUDIO_MIXER_ENUM; 1857 dip->un.e.num_mem = 3; 1858 strcpy(dip->un.e.member[0].label.name, AudioNmicrophone); 1859 dip->un.e.member[0].ord = SB_MIC_VOL; 1860 strcpy(dip->un.e.member[1].label.name, AudioNcd); 1861 dip->un.e.member[1].ord = SB_CD_VOL; 1862 strcpy(dip->un.e.member[2].label.name, AudioNline); 1863 dip->un.e.member[2].ord = SB_LINE_IN_VOL; 1864 } 1865 return 0; 1866 1867 case SB_BASS: 1868 dip->prev = dip->next = AUDIO_MIXER_LAST; 1869 strcpy(dip->label.name, AudioNbass); 1870 if (ISSB16CLASS(sc)) { 1871 dip->type = AUDIO_MIXER_VALUE; 1872 dip->mixer_class = SB_EQUALIZATION_CLASS; 1873 dip->un.v.num_channels = 2; 1874 strcpy(dip->un.v.units.name, AudioNbass); 1875 } else { 1876 dip->type = AUDIO_MIXER_ENUM; 1877 dip->mixer_class = SB_INPUT_CLASS; 1878 dip->un.e.num_mem = 2; 1879 strcpy(dip->un.e.member[0].label.name, AudioNoff); 1880 dip->un.e.member[0].ord = 0; 1881 strcpy(dip->un.e.member[1].label.name, AudioNon); 1882 dip->un.e.member[1].ord = 1; 1883 } 1884 return 0; 1885 1886 case SB_TREBLE: 1887 dip->prev = dip->next = AUDIO_MIXER_LAST; 1888 strcpy(dip->label.name, AudioNtreble); 1889 if (ISSB16CLASS(sc)) { 1890 dip->type = AUDIO_MIXER_VALUE; 1891 dip->mixer_class = SB_EQUALIZATION_CLASS; 1892 dip->un.v.num_channels = 2; 1893 strcpy(dip->un.v.units.name, AudioNtreble); 1894 } else { 1895 dip->type = AUDIO_MIXER_ENUM; 1896 dip->mixer_class = SB_INPUT_CLASS; 1897 dip->un.e.num_mem = 2; 1898 strcpy(dip->un.e.member[0].label.name, AudioNoff); 1899 dip->un.e.member[0].ord = 0; 1900 strcpy(dip->un.e.member[1].label.name, AudioNon); 1901 dip->un.e.member[1].ord = 1; 1902 } 1903 return 0; 1904 1905 case SB_RECORD_CLASS: /* record source class */ 1906 dip->type = AUDIO_MIXER_CLASS; 1907 dip->mixer_class = SB_RECORD_CLASS; 1908 dip->next = dip->prev = AUDIO_MIXER_LAST; 1909 strcpy(dip->label.name, AudioCRecord); 1910 return 0; 1911 1912 } 1913 1914 if (sc->sc_mixer_model == SBM_CT1345) 1915 return ENXIO; 1916 1917 switch(dip->index) { 1918 case SB_PCSPEAKER: 1919 dip->type = AUDIO_MIXER_VALUE; 1920 dip->mixer_class = SB_INPUT_CLASS; 1921 dip->prev = dip->next = AUDIO_MIXER_LAST; 1922 strcpy(dip->label.name, "pc_speaker"); 1923 dip->un.v.num_channels = 1; 1924 strcpy(dip->un.v.units.name, AudioNvolume); 1925 return 0; 1926 1927 case SB_INPUT_GAIN: 1928 dip->type = AUDIO_MIXER_VALUE; 1929 dip->mixer_class = SB_INPUT_CLASS; 1930 dip->prev = dip->next = AUDIO_MIXER_LAST; 1931 strcpy(dip->label.name, AudioNinput); 1932 dip->un.v.num_channels = 2; 1933 strcpy(dip->un.v.units.name, AudioNvolume); 1934 return 0; 1935 1936 case SB_OUTPUT_GAIN: 1937 dip->type = AUDIO_MIXER_VALUE; 1938 dip->mixer_class = SB_OUTPUT_CLASS; 1939 dip->prev = dip->next = AUDIO_MIXER_LAST; 1940 strcpy(dip->label.name, AudioNoutput); 1941 dip->un.v.num_channels = 2; 1942 strcpy(dip->un.v.units.name, AudioNvolume); 1943 return 0; 1944 1945 case SB_AGC: 1946 dip->type = AUDIO_MIXER_ENUM; 1947 dip->mixer_class = SB_INPUT_CLASS; 1948 dip->prev = dip->next = AUDIO_MIXER_LAST; 1949 strcpy(dip->label.name, "AGC"); 1950 dip->un.e.num_mem = 2; 1951 strcpy(dip->un.e.member[0].label.name, AudioNoff); 1952 dip->un.e.member[0].ord = 0; 1953 strcpy(dip->un.e.member[1].label.name, AudioNon); 1954 dip->un.e.member[1].ord = 1; 1955 return 0; 1956 1957 case SB_INPUT_CLASS: 1958 dip->type = AUDIO_MIXER_CLASS; 1959 dip->mixer_class = SB_INPUT_CLASS; 1960 dip->next = dip->prev = AUDIO_MIXER_LAST; 1961 strcpy(dip->label.name, AudioCInputs); 1962 return 0; 1963 1964 case SB_EQUALIZATION_CLASS: 1965 dip->type = AUDIO_MIXER_CLASS; 1966 dip->mixer_class = SB_EQUALIZATION_CLASS; 1967 dip->next = dip->prev = AUDIO_MIXER_LAST; 1968 strcpy(dip->label.name, AudioCEqualization); 1969 return 0; 1970 } 1971 1972 return ENXIO; 1973 } 1974
Indexes created Sun Sep 28 12:09:53 GMT 2025