sb16.c revision 36764
1/* 2 * sound/sb_dsp.c 3 * 4 * driver for the SoundBlaster and clones. 5 * 6 * Copyright 1997 Luigi Rizzo. 7 * 8 * Derived from files in the Voxware 3.5 distribution, 9 * Copyright by Hannu Savolainen 1994, under the same copyright 10 * conditions. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in 19 * the documentation and/or other materials provided with the 20 * distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 25 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 26 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 29 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 30 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 32 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 * 35 */ 36 37/* 38 * use this as a template file for board-specific drivers. 39 * The next two lines (and the final #endif) are in all drivers: 40 */ 41 42#include <i386/isa/snd/sound.h> 43#if NPCM > 0 44 45/* 46 * Begin with the board-specific include files... 47 */ 48 49#define __SB_MIXER_C__ /* XXX warning... */ 50#include <i386/isa/snd/sbcard.h> 51 52/* 53 * then prototypes of functions which go in the snddev_info 54 * (usually static, unless they are shared by other modules)... 55 */ 56 57static int sb_probe(struct isa_device *dev); 58static int sb_attach(struct isa_device *dev); 59 60static d_open_t sb_dsp_open; 61static d_close_t sb_dsp_close; 62static d_ioctl_t sb_dsp_ioctl; 63static irq_proc_t sbintr; 64static snd_callback_t sb_callback; 65 66/* 67 * and prototypes for other private functions defined in this module. 68 */ 69 70static void sb_dsp_init(snddev_info *d, struct isa_device *dev); 71static void sb_mix_init(snddev_info *d); 72static int sb_mixer_set(snddev_info *d, int dev, int value); 73static int dsp_speed(snddev_info *d); 74static void sb_mixer_reset(snddev_info *d); 75 76u_int sb_get_byte(int io_base); 77 78/* 79 * Then put here the descriptors for the various boards supported 80 * by this module, properly initialized. 81 */ 82 83snddev_info sb_op_desc = { 84 "basic soundblaster", 85 86 SNDCARD_SB, 87 sb_probe, 88 sb_attach, 89 90 sb_dsp_open, 91 sb_dsp_close /* sb_close */, 92 NULL /* use generic sndread */, 93 NULL /* use generic sndwrite */, 94 sb_dsp_ioctl, 95 sndselect, 96 97 sbintr, 98 sb_callback, 99 100 DSP_BUFFSIZE, /* bufsize */ 101 102 AFMT_STEREO | AFMT_U8, /* audio format */ 103 104} ; 105 106/* 107 * Then the file continues with the body of all functions 108 * directly referenced in the descriptor. 109 */ 110 111/* 112 * the probe routine for the SoundBlaster only consists in 113 * resetting the dsp and testing if it is there. 114 * Version detection etc. will be done at attach time. 115 * 116 * Remember, ISA probe routines are supposed to return the 117 * size of io space used. 118 */ 119 120static int 121sb_probe(struct isa_device *dev) 122{ 123 bzero(&pcm_info[dev->id_unit], sizeof(pcm_info[dev->id_unit]) ); 124 if (dev->id_iobase == -1) { 125 dev->id_iobase = 0x220; 126 BVDDB(printf("sb_probe: no address supplied, try defaults (0x220,0x240)\n");) 127 if (snd_conflict(dev->id_iobase)) 128 dev->id_iobase = 0x240; 129 } 130 if (snd_conflict(dev->id_iobase)) 131 return 0 ; 132 133 if (sb_reset_dsp(dev->id_iobase)) 134 return 16 ; /* the SB uses 16 registers... */ 135 else 136 return 0; 137} 138 139static int 140sb_attach(struct isa_device *dev) 141{ 142 snddev_info *d = &pcm_info[dev->id_unit] ; 143 144 dev->id_alive = 16 ; /* number of io ports */ 145 /* should be already set but just in case... */ 146 sb_dsp_init(d, dev); 147 return 0 ; 148} 149 150/* 151 * here are the main routines from the switches. 152 */ 153 154static int 155sb_dsp_open(dev_t dev, int flags, int mode, struct proc * p) 156{ 157 snddev_info *d; 158 int unit ; 159 160 dev = minor(dev); 161 unit = dev >> 4 ; 162 d = &pcm_info[unit] ; 163 164 DEB(printf("<%s>%d : open\n", d->name, unit)); 165 166 if (d->flags & SND_F_BUSY) { 167 printf("<%s>%d open: device busy\n", d->name, unit); 168 return EBUSY ; 169 } 170 171 d->wsel.si_pid = 0; 172 d->wsel.si_flags = 0; 173 174 d->rsel.si_pid = 0; 175 d->rsel.si_flags = 0; 176 177 d->dbuf_out.total = d->dbuf_out.prev_total = 0 ; 178 d->dbuf_in.total = d->dbuf_in.prev_total = 0 ; 179 180 d->flags = 0 ; 181 d->bd_flags &= ~BD_F_HISPEED ; 182 183 switch ( dev & 0xf ) { 184 case SND_DEV_DSP16 : 185 if ((d->audio_fmt & AFMT_S16_LE) == 0) { 186 printf("sorry, 16-bit not supported on SB %d.%02d\n", 187 (d->bd_id >>8) & 0xff, d->bd_id & 0xff); 188 return ENXIO; 189 } 190 d->play_fmt = d->rec_fmt = AFMT_S16_LE ; 191 break; 192 case SND_DEV_AUDIO : 193 d->play_fmt = d->rec_fmt = AFMT_MU_LAW ; 194 break ; 195 case SND_DEV_DSP : 196 d->play_fmt = d->rec_fmt = AFMT_U8 ; 197 break ; 198 } 199 if ( (flags & FREAD) == 0) 200 d->rec_fmt = 0 ; 201 if ( (flags & FWRITE) == 0) 202 d->play_fmt = 0 ; 203 204 d->flags |= SND_F_BUSY ; 205 d->play_speed = d->rec_speed = DSP_DEFAULT_SPEED ; 206 207 if (flags & O_NONBLOCK) 208 d->flags |= SND_F_NBIO ; 209 210 sb_reset_dsp(d->io_base); 211 if (d->bd_flags & BD_F_ESS) 212 sb_cmd(d->io_base, 0xc6 ); /* enable extended ESS mode */ 213 ask_init(d); 214 215 return 0; 216} 217 218static int 219sb_dsp_close(dev_t dev, int flags, int mode, struct proc * p) 220{ 221 int unit; 222 snddev_info *d; 223 u_long s; 224 225 dev = minor(dev); 226 unit = dev >> 4 ; 227 d = &pcm_info[unit] ; 228 229 s = spltty(); 230 d->flags |= SND_F_CLOSING ; 231 splx(s); 232 snd_flush(d); 233 234 sb_cmd(d->io_base, DSP_CMD_SPKOFF ); /* XXX useless ? */ 235 236 d->flags = 0 ; 237 return 0 ; 238} 239 240static int 241sb_dsp_ioctl(dev_t dev, u_long cmd, caddr_t arg, int mode, struct proc * p) 242{ 243 int unit; 244 snddev_info *d; 245 246 dev = minor(dev); 247 unit = dev >> 4 ; 248 d = &pcm_info[unit] ; 249 250 /* 251 * handle mixer calls first. Reads are in the default handler, 252 * so do not bother about them. 253 */ 254 if ( (cmd & MIXER_WRITE(0)) == MIXER_WRITE(0) ) 255 return sb_mixer_set(d, cmd & 0xff, *(int *)arg) ; 256 257 /* 258 * for the remaining functions, use the default handler. 259 * ENOSYS means that the default handler should take care 260 * of implementing the ioctl. 261 */ 262 263 return ENOSYS ; 264} 265 266static void 267sbintr(int unit) 268{ 269 snddev_info *d = &pcm_info[unit]; 270 int reason = 3, c=1, io_base = d->io_base; 271 272 DEB(printf("got sbintr for unit %d, flags 0x%08lx\n", unit, d->flags)); 273 274 /* 275 * SB < 4.0 is half duplex and has only 1 bit for int source, 276 * so we fake it. SB 4.x (SB16) has the int source in a separate 277 * register. 278 */ 279again: 280 if (d->bd_flags & BD_F_SB16) { 281 c = sb_getmixer(io_base, IRQ_STAT); 282 /* this tells us if the source is 8-bit or 16-bit dma. We 283 * have to check the io channel to map it to read or write... 284 */ 285 reason = 0 ; 286 if ( c & 1 ) { /* 8-bit dma */ 287 if (d->dbuf_out.chan < 4) 288 reason |= 1; 289 if (d->dbuf_in.chan < 4) 290 reason |= 2; 291 } 292 if ( c & 2 ) { /* 16-bit dma */ 293 if (d->dbuf_out.chan >= 4) 294 reason |= 1; 295 if (d->dbuf_in.chan >= 4) 296 reason |= 2; 297 } 298 } 299 /* XXX previous location of ack... */ 300 DEB(printf("sbintr, flags 0x%08lx reason %d\n", d->flags, reason)); 301 if ( reason & 1 ) { /* possibly a write interrupt */ 302 if ( d->dbuf_out.dl ) 303 dsp_wrintr(d); 304 else { 305 if (d->bd_flags & BD_F_SB16) 306 printf("WARNING: wrintr but write DMA inactive!\n"); 307 } 308 } 309 if ( reason & 2 ) { 310 if ( d->dbuf_in.dl ) 311 dsp_rdintr(d); 312 else { 313 if (d->bd_flags & BD_F_SB16) 314 printf("WARNING: rdintr but read DMA inactive!\n"); 315 } 316 } 317 if ( c & 2 ) 318 inb(DSP_DATA_AVL16); /* 16-bit int ack */ 319 if (c & 1) 320 inb(DSP_DATA_AVAIL); /* 8-bit int ack */ 321 322 /* 323 * the sb16 might have multiple sources etc. 324 */ 325 if (d->bd_flags & BD_F_SB16 && (c & 3) ) 326 goto again; 327} 328 329/* 330 * device-specific function called back from the dma module. 331 * The reason of the callback is the second argument. 332 * NOTE: during operations, some ioctl can be called to change 333 * settings (e.g. speed, channels, format), and the default 334 * ioctl handler will just record the change and set the 335 * flag SND_F_INIT. The callback routine is in charge of applying 336 * the changes at the next convenient time (typically, at the 337 * start of operations). For full duplex devices, in some cases the 338 * init requires both channels to be idle. 339 */ 340static int 341sb_callback(snddev_info *d, int reason) 342{ 343 int rd = reason & SND_CB_RD ; 344 snd_dbuf *b = (rd) ? & (d->dbuf_in) : & (d->dbuf_out) ; 345 int l = b->dl ; 346 347 switch (reason & SND_CB_REASON_MASK) { 348 case SND_CB_INIT : /* called with int enabled and no pending io */ 349 dsp_speed(d); 350 snd_set_blocksize(d); 351 if ( (d->play_fmt & AFMT_MU_LAW) || (d->rec_fmt & AFMT_MU_LAW) ) 352 d->flags |= SND_F_XLAT8 ; 353 else 354 d->flags &= ~SND_F_XLAT8 ; 355 356 if (d->bd_flags & BD_F_SB16) { 357 u_char c, c1 ; 358 359 /* the SB16 can do full duplex using one 16-bit channel 360 * and one 8-bit channel. It needs to be programmed to 361 * use split format though. 362 * We use the following algorithm: 363 * 1. check which direction(s) are active; 364 * 2. check if we should swap dma channels 365 * 3. check if we can do the swap. 366 */ 367 int swap = 1 ; /* default... */ 368 369 if (d->play_fmt == 0) { 370 /* do whatever the read channel wants */ 371 if ( d->rec_fmt == AFMT_S16_LE && d->dbuf_in.chan > 4 ) 372 swap = 0; 373 if ( d->rec_fmt != AFMT_S16_LE && d->dbuf_in.chan < 4 ) 374 swap = 0; 375 } else { 376 /* privilege the write channel */ 377 if ( d->play_fmt == AFMT_S16_LE && d->dbuf_out.chan > 4 ) 378 swap = 0; 379 if ( d->play_fmt != AFMT_S16_LE && d->dbuf_out.chan < 4 ) 380 swap = 0; 381 if ( d->rec_fmt ) { 382 /* check for possible config errors. */ 383 if (d->rec_fmt == d->play_fmt) { 384 DDB(printf("sorry, read DMA channel unavailable\n")); 385 } 386 } 387 } 388 DEB(printf("sb16: play_fmt %d, rec_fmt %x, swap %d\n", 389 d->play_fmt, d->rec_fmt, swap);) 390 if (swap) { 391 int c = d->dbuf_in.chan ; 392 d->dbuf_in.chan = d->dbuf_out.chan; 393 d->dbuf_out.chan = c ; 394 } 395 } 396 reset_dbuf(& (d->dbuf_in), SND_CHAN_RD ); 397 reset_dbuf(& (d->dbuf_out), SND_CHAN_WR ); 398 break ; 399 400 case SND_CB_START : /* called with int disabled */ 401 if (d->bd_flags & BD_F_SB16) { 402 u_char c, c1 ; 403 /* 404 * XXX note: c1 and l should be set basing on d->rec_fmt, 405 * but there is no choice once a 16 or 8-bit channel 406 * is assigned. This means that if the application 407 * tries to use a bad format, the sound will not be nice. 408 */ 409 if ( b->chan > 4 ) { 410 c = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_DMA16 ; 411 c1 = DSP_F16_SIGNED ; 412 l /= 2 ; 413 } else { 414 c = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_DMA8 ; 415 c1 = 0 ; 416 } 417 c |= (rd) ? DSP_F16_ADC : DSP_F16_DAC ; 418 if (d->flags & SND_F_STEREO) 419 c1 |= DSP_F16_STEREO ; 420 421 sb_cmd(d->io_base, c ); 422 sb_cmd3(d->io_base, c1 , l - 1) ; 423 } else if (d->bd_flags & BD_F_ESS) { 424 /* XXX this code is still incomplete */ 425 sb_cmd2(d->io_base, 0xb8, rd ? 4 : 0xe ) ; /* auto dma */ 426 sb_cmd2(d->io_base, 0xa8, d->flags & SND_F_STEREO ? 1 : 2) ; 427 sb_cmd2(d->io_base, 0xb9, 2) ; /* demand dma */ 428 } else { /* SBPro -- stereo not supported */ 429 u_char c ; 430 if (!rd) 431 sb_cmd(d->io_base, DSP_CMD_SPKON); 432 /* code for the SB2 and SB3, only MONO */ 433 if (d->bd_flags & BD_F_HISPEED) 434 c = (rd) ? 0x98 : 0x90 ; 435 else 436 c = (rd) ? 0x2c : 0x1c ; 437 if (d->flags & SND_F_STEREO) 438 sb_setmixer(d->io_base, 0xe, 2 ); 439 else 440 sb_setmixer(d->io_base, 0xe, 0 ); 441 /* 442 * some ESS extensions -- they can do 16 bits 443 */ 444 if ( (rd && d->rec_fmt == AFMT_S16_LE) || 445 (!rd && d->play_fmt == AFMT_S16_LE) ) { 446 c |= 1; 447 l /= 2 ; 448 } 449 sb_cmd3(d->io_base, 0x48 , l - 1) ; 450 sb_cmd(d->io_base, c ) ; 451 } 452 break; 453 454 case SND_CB_ABORT : /* XXX */ 455 case SND_CB_STOP : 456 { 457 int cmd = DSP_CMD_DMAPAUSE_8 ; /* default: halt 8 bit chan */ 458 if ( d->bd_flags & BD_F_SB16 && b->chan > 4 ) 459 cmd = DSP_CMD_DMAPAUSE_16 ; 460 if (d->bd_flags & BD_F_HISPEED) { 461 sb_reset_dsp(d->io_base); 462 if (d->bd_flags & BD_F_ESS) 463 sb_cmd(d->io_base, 0xc6 ); /* enable extended ESS mode */ 464 d->flags |= SND_F_INIT ; 465 } else { 466 sb_cmd(d->io_base, cmd); /* pause dma. */ 467 /* 468 * The above seems to have the undocumented side effect of 469 * blocking the other side as well. If the other 470 * channel was active (SB16) I have to re-enable it :( 471 */ 472 if ( (rd && d->dbuf_out.dl) || 473 (!rd && d->dbuf_in.dl) ) 474 sb_cmd(d->io_base, cmd == DSP_CMD_DMAPAUSE_8 ? 475 0xd6 : 0xd4); /* continue other dma */ 476 } 477 } 478 DEB( sb_cmd(d->io_base, DSP_CMD_SPKOFF) ); /* speaker off */ 479 break ; 480 481 } 482 return 0 ; 483} 484 485/* 486 * The second part of the file contains all functions specific to 487 * the board and (usually) not exported to other modules. 488 */ 489 490int 491sb_reset_dsp(int io_base) 492{ 493 int loopc; 494 495 outb(io_base + SBDSP_RST, 3); 496 DELAY(100); 497 outb(io_base + SBDSP_RST, 0); 498 for (loopc = 0; loopc<100 && !(inb(DSP_DATA_AVAIL) & 0x80); loopc++) 499 DELAY(30); 500 501 if (inb(DSP_READ) != 0xAA) { 502 DEB(printf("sb_reset_dsp 0x%x failed\n", io_base)); 503 return 0; /* Sorry */ 504 } 505 return 1; 506} 507 508/* 509 * only used in sb_attach from here. 510 */ 511 512static void 513sb_dsp_init(snddev_info *d, struct isa_device *dev) 514{ 515 int i, x; 516 char *fmt = NULL ; 517 int io_base = dev->id_iobase ; 518 519 d->bd_id = 0 ; 520 521 sb_reset_dsp(io_base); 522 sb_cmd(io_base, DSP_CMD_GETVER); /* Get version */ 523 524 for (i = 10000; i; i--) { /* perhaps wait longer on a fast machine ? */ 525 if (inb(DSP_DATA_AVAIL) & 0x80) { /* wait for Data Ready */ 526 if ( (d->bd_id & 0xff00) == 0) 527 d->bd_id = inb(DSP_READ) << 8; /* major */ 528 else { 529 d->bd_id |= inb(DSP_READ); /* minor */ 530 break; 531 } 532 } else 533 DELAY(20); 534 } 535 536 /* 537 * now do various initializations depending on board id. 538 */ 539 540 fmt = "SoundBlaster %d.%d" ; /* default */ 541 542 switch ( d->bd_id >> 8 ) { 543 case 0 : 544 printf("\n\nFailed to get SB version (%x) - possible I/O conflict\n\n", 545 inb(DSP_DATA_AVAIL)); 546 d->bd_id = 0x100; 547 case 1 : /* old sound blaster has nothing... */ 548 break ; 549 550 case 2 : 551 d->dbuf_in.chan = d->dbuf_out.chan ; /* half duplex */ 552 d->bd_flags |= BD_F_DUP_MIDI ; 553 554 if (d->bd_id == 0x200) 555 break ; /* no mixer on the 2.0 */ 556 d->bd_flags &= ~BD_F_MIX_MASK ; 557 d->bd_flags |= BD_F_MIX_CT1335 ; 558 559 break ; 560 case 4 : 561 fmt = "SoundBlaster 16 %d.%d"; 562 d->audio_fmt |= AFMT_FULLDUPLEX | AFMT_WEIRD | AFMT_S8 | AFMT_S16_LE; 563 d->bd_flags |= BD_F_SB16; 564 d->bd_flags &= ~BD_F_MIX_MASK ; 565 d->bd_flags |= BD_F_MIX_CT1745 ; 566 567 /* soft irq/dma configuration */ 568 x = -1 ; 569 if (d->irq == 5) x = 2; 570 else if (d->irq == 7) x = 4; 571 else if (d->irq == 9) x = 1; 572 else if (d->irq == 10) x = 8; 573 if (x == -1) 574 printf("<%s>%d: bad irq %d (only 5,7,9,10 allowed)\n", 575 d->name, dev->id_unit, d->irq); 576 else 577 sb_setmixer(io_base, IRQ_NR, x); 578 if (d->dbuf_out.chan == d->dbuf_in.chan) { 579 printf("WARNING: sb: misconfigured secondary DMA channel\n"); 580 } 581 sb_setmixer(io_base, DMA_NR, (1 << d->dbuf_out.chan) | (1 << d->dbuf_in.chan)); 582 break ; 583 584 case 3 : 585 d->dbuf_in.chan = d->dbuf_out.chan ; /* half duplex */ 586 fmt = "SoundBlaster Pro %d.%d"; 587 d->bd_flags |= BD_F_DUP_MIDI ; 588 d->bd_flags &= ~BD_F_MIX_MASK ; 589 d->bd_flags |= BD_F_MIX_CT1345 ; 590 if (d->bd_id == 0x301) { 591 int ess_major = 0, ess_minor = 0; 592 593 /* 594 * Try to detect ESS chips. 595 */ 596 597 sb_cmd(io_base, DSP_CMD_GETID); /* Return ident. bytes. */ 598 599 for (i = 1000; i; i--) { 600 if (inb(DSP_DATA_AVAIL) & 0x80) { /* wait for Data Ready */ 601 if (ess_major == 0) 602 ess_major = inb(DSP_READ); 603 else { 604 ess_minor = inb(DSP_READ); 605 break; 606 } 607 } else 608 DELAY(20); 609 } 610 611 if (ess_major == 0x48 && (ess_minor & 0xf0) == 0x80) { 612 /* the ESS488 can be treated as an SBPRO */ 613 printf("ESS488 (rev %d)\n", ess_minor & 0x0f); 614 break ; 615 } else if (ess_major == 0x68 && (ess_minor & 0xf0) == 0x80) { 616 int rev = ess_minor & 0xf ; 617 if ( rev >= 8 ) 618 printf("ESS1868 (rev %d)\n", rev); 619 else 620 printf("ESS688 (rev %d)\n", rev); 621 break ; /* XXX */ 622 } else { 623 printf("Unknown card 0x%x 0x%x -- hope it is SBPRO\n", 624 ess_major, ess_minor); 625 break ; 626 } 627 } 628 629 } 630 631 sprintf(d->name, fmt, (d->bd_id >> 8) &0xff, d->bd_id & 0xff); 632 633 sb_mix_init(d); 634} 635 636static void 637sb_mix_init(snddev_info *d) 638{ 639 switch (d->bd_flags & BD_F_MIX_MASK) { 640 case BD_F_MIX_CT1345 : /* SB 3.0 has 1345 mixer */ 641 642 d->mix_devs = SBPRO_MIXER_DEVICES ; 643 d->mix_rec_devs = SBPRO_RECORDING_DEVICES ; 644 d->mix_recsrc = SOUND_MASK_MIC ; 645 646 sb_setmixer(d->io_base, 0, 1 ); /* reset mixer */ 647 sb_setmixer(d->io_base, MIC_VOL , 0x6 ); /* mic volume max */ 648 sb_setmixer(d->io_base, RECORD_SRC , 0x0 ); /* mic source */ 649 sb_setmixer(d->io_base, FM_VOL , 0x0 ); /* no midi */ 650 break ; 651 652 case BD_F_MIX_CT1745 : /* SB16 mixer ... */ 653 654 d->mix_devs = SB16_MIXER_DEVICES ; 655 d->mix_rec_devs = SB16_RECORDING_DEVICES ; 656 d->mix_recsrc = SOUND_MASK_MIC ; 657 } 658 sb_mixer_reset(d); 659} 660 661/* 662 * Common code for the midi and pcm functions 663 */ 664 665int 666sb_cmd(int io_base, u_char val) 667{ 668 int i; 669 670 for (i = 0; i < 1000 ; i++) { 671 if ((inb(io_base + SBDSP_STATUS) & 0x80) == 0) { 672 outb(io_base + SBDSP_CMD, val); 673 return 1; 674 } 675 if (i > 10) 676 DELAY (i > 100 ? 1000 : 10 ); 677 } 678 679 printf("SoundBlaster: DSP Command(0x%02x) timeout. IRQ conflict ?\n", val); 680 return 0; 681} 682 683int 684sb_cmd3(int io_base, u_char cmd, int val) 685{ 686 if (sb_cmd(io_base, cmd)) { 687 sb_cmd(io_base, val & 0xff ); 688 sb_cmd(io_base, (val>>8) & 0xff ); 689 return 1 ; 690 } else 691 return 0; 692} 693 694int 695sb_cmd2(int io_base, u_char cmd, int val) 696{ 697 if (sb_cmd(io_base, cmd)) { 698 sb_cmd(io_base, val & 0xff ); 699 return 1 ; 700 } else 701 return 0; 702} 703 704/* 705 * in the SB, there is a set of indirect "mixer" registers with 706 * address at offset 4, data at offset 5 707 */ 708void 709sb_setmixer(int io_base, u_int port, u_int value) 710{ 711 u_long flags; 712 713 flags = spltty(); 714 outb(io_base + 4, (u_char) (port & 0xff)); /* Select register */ 715 DELAY(10); 716 outb(io_base + 5, (u_char) (value & 0xff)); 717 DELAY(10); 718 splx(flags); 719} 720 721int 722sb_getmixer(int io_base, u_int port) 723{ 724 int val; 725 u_long flags; 726 727 flags = spltty(); 728 outb(io_base + 4, (u_char) (port & 0xff)); /* Select register */ 729 DELAY(10); 730 val = inb(io_base + 5); 731 DELAY(10); 732 splx(flags); 733 734 return val; 735} 736 737u_int 738sb_get_byte(int io_base) 739{ 740 int i; 741 742 for (i = 1000; i; i--) 743 if (inb(DSP_DATA_AVAIL) & 0x80) 744 return inb(DSP_READ); 745 else 746 DELAY(20); 747 return 0xffff; 748} 749 750 751 752/* 753 * various utility functions for the DSP 754 */ 755 756/* 757 * dsp_speed updates the speed setting from the descriptor. make sure 758 * it is called at spltty(). 759 * Besides, it takes care of stereo setting. 760 */ 761static int 762dsp_speed(snddev_info *d) 763{ 764 u_char tconst; 765 u_long flags; 766 int max_speed = 44100, speed = d->play_speed ; 767 768 /* 769 * special code for the SB16 770 */ 771 if (d->bd_flags & BD_F_SB16) { 772 RANGE (speed, 5000, 45000); 773 d->play_speed = d->rec_speed = speed ; 774 sb_cmd(d->io_base, 0x41); 775 sb_cmd(d->io_base, d->play_speed >> 8 ); 776 sb_cmd(d->io_base, d->play_speed & 0xff ); 777 sb_cmd(d->io_base, 0x42); 778 sb_cmd(d->io_base, d->rec_speed >> 8 ); 779 sb_cmd(d->io_base, d->rec_speed & 0xff ); 780 return speed ; 781 } 782 783 /* 784 * special code for the ESS ... 785 */ 786 if (d->bd_flags & BD_F_ESS) { 787 int t; 788 RANGE (speed, 4000, 48000); 789 if (speed > 22000) { 790 t = (795500 + speed / 2) / speed; 791 speed = (795500 + t / 2) / t ; 792 t = ( 256 - (795500 + speed / 2) / speed ) | 0x80 ; 793 } else { 794 t = (397700 + speed / 2) / speed; 795 speed = (397700 + t / 2) / t ; 796 t = 128 - (397700 + speed / 2) / speed ; 797 } 798 sb_cmd2(d->io_base, 0xa1, t); /* set time constant */ 799 return speed ; 800 } 801 802 /* 803 * This is code for the SB3.x and lower. 804 * Only some models can do stereo, and only if not 805 * simultaneously using midi. 806 * At the moment we do not support either... 807 */ 808#if 0 809 d->flags &= ~SND_F_STEREO; 810#endif 811 812 /* 813 * here enforce speed limitations. 814 */ 815 if (d->bd_id <= 0x200) 816 max_speed = 22050; /* max 22050 on SB 1.X */ 817 818 /* 819 * SB models earlier than SB Pro have low limit for the 820 * input rate. Note that this is only for input, but since 821 * we do not support separate values for rec & play.... 822 */ 823 if (d->bd_id <= 0x200) 824 max_speed = 13000; 825 else if (d->bd_id < 0x300) 826 max_speed = 15000; 827 828 RANGE(speed, 4000, max_speed); 829 830 if (d->flags & SND_F_STEREO) /* really unused right now... */ 831 speed *= 2; 832 833 /* 834 * Now the speed should be valid. Compute the value to be 835 * programmed into the board. 836 */ 837 838 if (speed > 22050) { /* High speed mode on 2.01/3.xx */ 839 int tmp; 840 841 tconst = (u_char) ((65536 - ((256000000 + speed / 2) / speed)) >> 8) ; 842 d->bd_flags |= BD_F_HISPEED ; 843 844 flags = spltty(); 845 sb_cmd2(d->io_base, 0x40, tconst); /* set time constant */ 846 splx(flags); 847 848 tmp = 65536 - (tconst << 8); 849 speed = (256000000 + tmp / 2) / tmp; 850 } else { 851 int tmp; 852 853 d->bd_flags &= ~BD_F_HISPEED ; 854 tconst = (256 - ((1000000 + speed / 2) / speed)) & 0xff; 855 856 flags = spltty(); 857 sb_cmd2(d->io_base, 0x40, tconst); /* set time constant */ 858 splx(flags); 859 860 tmp = 256 - tconst; 861 speed = (1000000 + tmp / 2) / tmp; 862 } 863 864 if (d->flags & SND_F_STEREO) /* really unused right now... */ 865 speed /= 2; 866 867 d->play_speed = d->rec_speed = speed; 868 return speed; 869} 870 871/* 872 * mixer support, originally in sb_mixer.c 873 */ 874 875static void 876sb_set_recsrc(snddev_info *d, int mask) 877{ 878 u_char recdev ; 879 880 mask &= d->mix_rec_devs; 881 switch (d->bd_flags & BD_F_MIX_MASK) { 882 case BD_F_MIX_CT1345 : 883 if (mask == SOUND_MASK_LINE) 884 recdev = 6 ; 885 else if (mask == SOUND_MASK_CD) 886 recdev = 2 ; 887 else { /* default: mic */ 888 mask = SOUND_MASK_MIC ; 889 recdev = 0 ; 890 } 891 sb_setmixer(d->io_base, RECORD_SRC, 892 recdev | (sb_getmixer(d->io_base, RECORD_SRC) & ~7 )); 893 break ; 894 case BD_F_MIX_CT1745 : /* sb16 */ 895 if (mask == 0) 896 mask = SOUND_MASK_MIC ; /* XXX For compatibility. Bug ? */ 897 recdev = 0 ; 898 if (mask & SOUND_MASK_MIC) 899 recdev |= 1 ; 900 if (mask & SOUND_MASK_CD) 901 recdev |= 6 ; /* l+r cd */ 902 if (mask & SOUND_MASK_LINE) 903 recdev |= 0x18 ; /* l+r line */ 904 if (mask & SOUND_MASK_SYNTH) 905 recdev |= 0x60 ; /* l+r midi */ 906 sb_setmixer(d->io_base, SB16_IMASK_L, recdev); 907 sb_setmixer(d->io_base, SB16_IMASK_R, recdev); 908 /* 909 * since the same volume controls apply to the input and 910 * output sections, the best approach to have a consistent 911 * behaviour among cards would be to disable the output path 912 * on devices which are used to record. 913 * However, since users like to have feedback, we only disable 914 * the mike -- permanently. 915 */ 916 sb_setmixer(d->io_base, SB16_OMASK, 0x1f & ~1); 917 break ; 918 } 919 d->mix_recsrc = mask; 920} 921 922static void 923sb_mixer_reset(snddev_info *d) 924{ 925 int i; 926 927 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) 928 sb_mixer_set(d, i, levels[i]); 929 if (d->bd_flags & BD_F_SB16) { 930 sb_setmixer(d->io_base, 0x3c, 0x1f); /* make all output active */ 931 sb_setmixer(d->io_base, 0x3d, 0); /* make all inputs-l off */ 932 sb_setmixer(d->io_base, 0x3e, 0); /* make all inputs-r off */ 933 } 934 sb_set_recsrc(d, SOUND_MASK_MIC); 935} 936 937static int 938sb_mixer_set(snddev_info *d, int dev, int value) 939{ 940 int left = value & 0x000000ff; 941 int right = (value & 0x0000ff00) >> 8; 942 int regoffs; 943 u_char val; 944 mixer_tab *iomap; 945 946#ifdef JAZZ16 947 if (d->bd_flags & BD_F_JAZZ16 && d->bd_flags & BD_F_JAZZ16_2) 948 return smw_mixer_set(dev, value); 949#endif 950 951 if (dev == SOUND_MIXER_RECSRC) { 952 sb_set_recsrc(d, value); 953 return 0 ; 954 } 955 if (left > 100) 956 left = 100; 957 if (right > 100) 958 right = 100; 959 960 if (dev > 31) 961 return EINVAL ; 962 963 if (!(d->mix_devs & (1 << dev))) /* Not supported */ 964 return EINVAL; 965 966 switch ( d->bd_flags & BD_F_MIX_MASK ) { 967 default: 968 /* mixer unknown, fail... */ 969 return EINVAL ;/* XXX change this */ 970 case BD_F_MIX_CT1345 : 971 iomap = &sbpro_mix ; 972 break; 973 case BD_F_MIX_CT1745 : 974 iomap = &sb16_mix ; 975 break; 976 /* XXX how about the SG NX Pro, iomap = sgnxpro_mix */ 977 } 978 regoffs = (*iomap)[dev][LEFT_CHN].regno; 979 if (regoffs == 0) 980 return EINVAL; 981 982 val = sb_getmixer(d->io_base, regoffs); 983 984 change_bits(iomap, &val, dev, LEFT_CHN, left); 985 986 d->mix_levels[dev] = left | (left << 8); 987 988 if ((*iomap)[dev][RIGHT_CHN].regno != regoffs) { /* Change register */ 989 sb_setmixer(d->io_base, regoffs, val); /* Save the old one */ 990 regoffs = (*iomap)[dev][RIGHT_CHN].regno; 991 992 if (regoffs == 0) 993 return 0 ; /* Just left channel present */ 994 995 val = sb_getmixer(d->io_base, regoffs); /* Read the new one */ 996 } 997 change_bits(iomap, &val, dev, RIGHT_CHN, right); 998 999 sb_setmixer(d->io_base, regoffs, val); 1000 1001 d->mix_levels[dev] = left | (right << 8); 1002 return 0 ; /* ok */ 1003} 1004 1005/* 1006 * now support for some PnP boards. 1007 */ 1008 1009#if NPNP > 0 1010static char *ess1868_probe(u_long csn, u_long vend_id); 1011static void ess1868_attach(u_long csn, u_long vend_id, char *name, 1012 struct isa_device *dev); 1013 1014static struct pnp_device ess1868 = { 1015 "ESS1868", 1016 ess1868_probe, 1017 ess1868_attach, 1018 &nsnd, /* use this for all sound cards */ 1019 &tty_imask /* imask */ 1020}; 1021DATA_SET (pnpdevice_set, ess1868); 1022 1023static char * 1024ess1868_probe(u_long csn, u_long vend_id) 1025{ 1026 /* 1027 * pnp X 1 os enable drq0 3 irq0 12 port0 0x240 1028 */ 1029 if (vend_id == 0x68187316) { 1030 struct pnp_cinfo d ; 1031 read_pnp_parms ( &d , 1 ) ; 1032 if (d.enable == 0) { 1033 printf("This is an ESS1868, but LDN 1 is disabled\n"); 1034 return NULL; 1035 } 1036 return "ESS1868" ; 1037 } 1038 return NULL ; 1039} 1040 1041static void 1042ess1868_attach(u_long csn, u_long vend_id, char *name, 1043 struct isa_device *dev) 1044{ 1045 struct pnp_cinfo d ; 1046 snddev_info tmp_d ; /* patched copy of the basic snddev_info */ 1047 int the_irq = 0 ; 1048 1049 tmp_d = sb_op_desc; 1050 snddev_last_probed = &tmp_d; 1051 1052#if 0 1053 read_pnp_parms ( &d , 3 ); /* disable LDN 3 */ 1054 d.port[0] = 0 ; 1055 d.enable = 0 ; 1056 write_pnp_parms ( &d , 3 ); 1057 1058 read_pnp_parms ( &d , 2 ); /* disable LDN 2 */ 1059 d.port[0] = 0 ; 1060 d.enable = 0 ; 1061 write_pnp_parms ( &d , 2 ); 1062 read_pnp_parms ( &d , 0 ); /* read config base */ 1063 tmp_d.conf_base = d.port[0]; 1064 write_pnp_parms ( &d , 0 ); 1065#endif 1066 1067 read_pnp_parms ( &d , 1 ) ; 1068 dev->id_iobase = d.port[0]; 1069 d.port[1] = 0 ; 1070 d.port[2] = 0 ; 1071 write_pnp_parms ( &d , 1 ); 1072 enable_pnp_card(); 1073 1074 dev->id_drq = d.drq[0] ; /* primary dma */ 1075 dev->id_irq = (1 << d.irq[0] ) ; 1076 dev->id_intr = pcmintr ; 1077 dev->id_flags = 0 /* DV_F_DUAL_DMA | (d.drq[1] ) */; 1078 1079 snddev_last_probed->probe(dev); /* not really necessary but doesn't harm */ 1080 pcmattach(dev); 1081} 1082 1083static char *opti925_probe(u_long csn, u_long vend_id); 1084static void opti925_attach(u_long csn, u_long vend_id, char *name, 1085 struct isa_device *dev); 1086 1087static struct pnp_device opti925 = { 1088 "opti925", 1089 opti925_probe, 1090 opti925_attach, 1091 &nsnd, /* use this for all sound cards */ 1092 &tty_imask /* imask */ 1093}; 1094DATA_SET (pnpdevice_set, opti925); 1095 1096static char * 1097opti925_probe(u_long csn, u_long vend_id) 1098{ 1099 if (vend_id == 0x2509143e) { 1100 struct pnp_cinfo d ; 1101 read_pnp_parms ( &d , 1 ) ; 1102 if (d.enable == 0) { 1103 printf("This is an OPTi925, but LDN 1 is disabled\n"); 1104 return NULL; 1105 } 1106 return "OPTi925" ; 1107 } 1108 return NULL ; 1109} 1110 1111static void 1112opti925_attach(u_long csn, u_long vend_id, char *name, 1113 struct isa_device *dev) 1114{ 1115 struct pnp_cinfo d ; 1116 snddev_info tmp_d ; /* patched copy of the basic snddev_info */ 1117 int the_irq = 0 ; 1118 1119 tmp_d = sb_op_desc; 1120 snddev_last_probed = &tmp_d; 1121 1122 read_pnp_parms ( &d , 3 ); /* disable LDN 3 */ 1123 the_irq = d.irq[0]; 1124 d.port[0] = 0 ; 1125 d.enable = 0 ; 1126 write_pnp_parms ( &d , 3 ); 1127 1128 read_pnp_parms ( &d , 2 ); /* disable LDN 2 */ 1129 d.port[0] = 0 ; 1130 d.enable = 0 ; 1131 write_pnp_parms ( &d , 2 ); 1132 1133 read_pnp_parms ( &d , 1 ) ; 1134 d.irq[0] = the_irq ; 1135 dev->id_iobase = d.port[0]; 1136 write_pnp_parms ( &d , 1 ); 1137 enable_pnp_card(); 1138 1139 tmp_d.conf_base = d.port[3]; 1140 1141 dev->id_drq = d.drq[0] ; /* primary dma */ 1142 dev->id_irq = (1 << d.irq[0] ) ; 1143 dev->id_intr = pcmintr ; 1144 dev->id_flags = DV_F_DUAL_DMA | (d.drq[1] ) ; 1145 1146 snddev_last_probed->probe(dev); /* not really necessary but doesn't harm */ 1147 1148 pcmattach(dev); 1149 1150} 1151 1152/* 1153 * A driver for some SB16pnp and compatibles... 1154 * 1155 * Avance Asound 100 -- 0x01009305 1156 * xxx -- 0x2b008c0e 1157 * 1158 */ 1159 1160static char *sb16pnp_probe(u_long csn, u_long vend_id); 1161static void sb16pnp_attach(u_long csn, u_long vend_id, char *name, 1162 struct isa_device *dev); 1163 1164static struct pnp_device sb16pnp = { 1165 "SB16pnp", 1166 sb16pnp_probe, 1167 sb16pnp_attach, 1168 &nsnd, /* use this for all sound cards */ 1169 &tty_imask /* imask */ 1170}; 1171DATA_SET (pnpdevice_set, sb16pnp); 1172 1173static char * 1174sb16pnp_probe(u_long csn, u_long vend_id) 1175{ 1176 char *s = NULL ; 1177 1178 /* 1179 * The SB16/AWExx cards seem to differ in the fourth byte of 1180 * the vendor id, so I have just masked it for the time being... 1181 * Reported values are: 1182 * SB16 Value PnP: 0x2b008c0e 1183 * SB AWExx PnP: 0x39008c0e 0x9d008c0e 0xc3008c0e 1184 */ 1185 if ( (vend_id & 0xffffff) == (0x9d008c0e & 0xffffff) ) 1186 s = "SB16 PnP"; 1187 else if (vend_id == 0x01009305) 1188 s = "Avance Asound 100" ; 1189 if (s) { 1190 struct pnp_cinfo d; 1191 read_pnp_parms(&d, 0); 1192 if (d.enable == 0) { 1193 printf("This is a %s, but LDN 0 is disabled\n", s); 1194 return NULL ; 1195 } 1196 return s ; 1197 } 1198 return NULL ; 1199} 1200 1201static void 1202sb16pnp_attach(u_long csn, u_long vend_id, char *name, 1203 struct isa_device *dev) 1204{ 1205 struct pnp_cinfo d ; 1206 snddev_info tmp_d ; /* patched copy of the basic snddev_info */ 1207 1208 tmp_d = sb_op_desc; 1209 snddev_last_probed = &tmp_d; 1210 1211 read_pnp_parms ( &d , 0 ) ; 1212 d.port[1] = 0 ; /* only the first address is used */ 1213 dev->id_iobase = d.port[0]; 1214 tmp_d.synth_base = d.port[2]; 1215 write_pnp_parms ( &d , 0 ); 1216 enable_pnp_card(); 1217 1218 dev->id_drq = d.drq[0] ; /* primary dma */ 1219 dev->id_irq = (1 << d.irq[0] ) ; 1220 dev->id_intr = pcmintr ; 1221 dev->id_flags = DV_F_DUAL_DMA | (d.drq[1] ) ; 1222 1223 pcm_info[dev->id_unit] = tmp_d; 1224 snddev_last_probed->probe(dev); /* not really necessary but doesn't harm */ 1225 1226 pcmattach(dev); 1227} 1228#endif /* NPNP */ 1229 1230#endif 1231