sb16.c revision 41514
1/* 2 * sound/sb_dsp.c 3 * 4 * driver for the SoundBlaster and clones. 5 * 6 * Copyright 1997,1998 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 sb_intr; 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); 77int ess_write(int io_base, u_char reg, int val); 78int ess_read(int io_base, u_char reg); 79 80/* 81 * Then put here the descriptors for the various boards supported 82 * by this module, properly initialized. 83 */ 84 85snddev_info sb_op_desc = { 86 "basic soundblaster", 87 88 SNDCARD_SB, 89 sb_probe, 90 sb_attach, 91 92 sb_dsp_open, 93 sb_dsp_close /* sb_close */, 94 NULL /* use generic sndread */, 95 NULL /* use generic sndwrite */, 96 sb_dsp_ioctl, 97 sndselect, 98 99 sb_intr, 100 sb_callback, 101 102 DSP_BUFFSIZE, /* bufsize */ 103 104 AFMT_STEREO | AFMT_U8, /* audio format */ 105 106} ; 107 108/* 109 * Then the file continues with the body of all functions 110 * directly referenced in the descriptor. 111 */ 112 113/* 114 * the probe routine for the SoundBlaster only consists in 115 * resetting the dsp and testing if it is there. 116 * Version detection etc. will be done at attach time. 117 * 118 * Remember, ISA probe routines are supposed to return the 119 * size of io space used. 120 */ 121 122static int 123sb_probe(struct isa_device *dev) 124{ 125 bzero(&pcm_info[dev->id_unit], sizeof(pcm_info[dev->id_unit]) ); 126 if (dev->id_iobase == -1) { 127 dev->id_iobase = 0x220; 128 BVDDB(printf("sb_probe: no address supplied, try defaults (0x220,0x240)\n");) 129 if (snd_conflict(dev->id_iobase)) 130 dev->id_iobase = 0x240; 131 } 132 if (snd_conflict(dev->id_iobase)) 133 return 0 ; 134 135 if (sb_reset_dsp(dev->id_iobase)) 136 return 16 ; /* the SB uses 16 registers... */ 137 else 138 return 0; 139} 140 141static int 142sb_attach(struct isa_device *dev) 143{ 144 snddev_info *d = &pcm_info[dev->id_unit] ; 145 146 dev->id_alive = 16 ; /* number of io ports */ 147 /* should be already set but just in case... */ 148 sb_dsp_init(d, dev); 149 return 0 ; 150} 151 152/* 153 * here are the main routines from the switches. 154 */ 155 156/* 157 * Unlike MSS, the sb only supports a single open (does not mean 158 * that only a single process is using it, since it can fork 159 * afterwards, or pass the descriptor to another process). 160 * 161 */ 162static int 163sb_dsp_open(dev_t dev, int flags, int mode, struct proc * p) 164{ 165 snddev_info *d; 166 int unit ; 167 168 dev = minor(dev); 169 unit = dev >> 4 ; 170 d = &pcm_info[unit] ; 171 172 DEB(printf("<%s>%d : open\n", d->name, unit)); 173 174 if (d->flags & SND_F_BUSY) { 175 DEB(printf("<%s>%d open: device busy\n", d->name, unit)); 176 return EBUSY ; 177 } 178 179 d->wsel.si_pid = 0; 180 d->wsel.si_flags = 0; 181 182 d->rsel.si_pid = 0; 183 d->rsel.si_flags = 0; 184 185 d->dbuf_out.total = d->dbuf_out.prev_total = 0 ; 186 d->dbuf_in.total = d->dbuf_in.prev_total = 0 ; 187 188 d->flags = 0 ; 189 d->bd_flags &= ~BD_F_HISPEED ; 190 191 switch ( dev & 0xf ) { 192 case SND_DEV_DSP16 : 193 if ((d->audio_fmt & AFMT_S16_LE) == 0) { 194 printf("sorry, 16-bit not supported on SB %d.%02d\n", 195 (d->bd_id >>8) & 0xff, d->bd_id & 0xff); 196 return ENXIO; 197 } 198 d->play_fmt = d->rec_fmt = AFMT_S16_LE ; 199 break; 200 case SND_DEV_AUDIO : 201 d->play_fmt = d->rec_fmt = AFMT_MU_LAW ; 202 break ; 203 case SND_DEV_DSP : 204 d->play_fmt = d->rec_fmt = AFMT_U8 ; 205 break ; 206 } 207 /* 208 * since the SB is not simmetric, I use the open mode to select 209 * which channel should be privileged, and disable I/O in the 210 * other direction. 211 * In case the board is opened RW, we don't have enough 212 * information on what to do. Temporarily, privilege the 213 * playback channel, which is used more often, and set the other 214 * one to U8. 215 */ 216 if ( (flags & FREAD) == 0) /* opened write only */ 217 d->rec_fmt = 0 ; 218 else if ( (flags & FWRITE) == 0) /* opened read only */ 219 d->play_fmt = 0 ; 220 else /* opened read/write */ 221 d->rec_fmt = (d->play_fmt == AFMT_S16_LE) ? AFMT_U8 : AFMT_S16_LE ; 222 223 d->flags |= SND_F_BUSY ; 224 d->play_speed = d->rec_speed = DSP_DEFAULT_SPEED ; 225 226 if (flags & O_NONBLOCK) 227 d->flags |= SND_F_NBIO ; 228 229 sb_reset_dsp(d->io_base); 230 if (d->bd_flags & BD_F_ESS) 231 sb_cmd(d->io_base, 0xc6 ); /* enable extended ESS mode */ 232 ask_init(d); 233 234 return 0; 235} 236 237static int 238sb_dsp_close(dev_t dev, int flags, int mode, struct proc * p) 239{ 240 int unit; 241 snddev_info *d; 242 u_long s; 243 244 dev = minor(dev); 245 unit = dev >> 4 ; 246 d = &pcm_info[unit] ; 247 248 s = spltty(); 249 d->flags |= SND_F_CLOSING ; 250 splx(s); 251 snd_flush(d); 252 253 sb_cmd(d->io_base, DSP_CMD_SPKOFF ); /* XXX useless ? */ 254 255 d->flags = 0 ; 256 return 0 ; 257} 258 259static int 260sb_dsp_ioctl(dev_t dev, u_long cmd, caddr_t arg, int mode, struct proc * p) 261{ 262 int unit; 263 snddev_info *d; 264 265 dev = minor(dev); 266 unit = dev >> 4 ; 267 d = &pcm_info[unit] ; 268 269 /* 270 * handle mixer calls first. Reads are in the default handler, 271 * so do not bother about them. 272 */ 273 if ( (cmd & MIXER_WRITE(0)) == MIXER_WRITE(0) ) 274 return sb_mixer_set(d, cmd & 0xff, *(int *)arg) ; 275 276 /* 277 * for the remaining functions, use the default handler. 278 * ENOSYS means that the default handler should take care 279 * of implementing the ioctl. 280 */ 281 282 return ENOSYS ; 283} 284 285static void 286sb_intr(int unit) 287{ 288 snddev_info *d = &pcm_info[unit]; 289 int reason = 3, c=1, io_base = d->io_base; 290 291 DEB(printf("got sb_intr for unit %d, flags 0x%08lx\n", unit, d->flags)); 292 293 /* 294 * SB < 4.0 is half duplex and has only 1 bit for int source, 295 * so we fake it. SB 4.x (SB16) has the int source in a separate 296 * register. 297 * The Vibra16X has separate flags for 8 and 16 bit transfers, but 298 * I have no idea how to tell capture from playback interrupts... 299 */ 300#define PLAIN_SB16(x) ( ( (x) & (BD_F_SB16|BD_F_SB16X) ) == BD_F_SB16) 301again: 302 if (d->bd_flags & BD_F_SB16) { 303 c = sb_getmixer(io_base, IRQ_STAT); 304 /* this tells us if the source is 8-bit or 16-bit dma. We 305 * have to check the io channel to map it to read or write... 306 */ 307 reason = 0 ; 308 if ( c & 1 ) { /* 8-bit dma */ 309 if (d->play_fmt == AFMT_U8 || d->play_fmt == AFMT_MU_LAW ) 310 reason |= 1; 311 if (d->rec_fmt == AFMT_U8 || d->rec_fmt == AFMT_MU_LAW ) 312 reason |= 2; 313 } 314 if ( c & 2 ) { /* 16-bit dma */ 315 if (d->play_fmt == AFMT_S16_LE) 316 reason |= 1; 317 if (d->rec_fmt == AFMT_S16_LE) 318 reason |= 2; 319 } 320 } 321 /* XXX previous location of ack... */ 322 DEB(printf("sb_intr, flags 0x%08lx reason %d c 0x%x\n", 323 d->flags, reason, c)); 324 if ( reason & 1 ) { /* possibly a write interrupt */ 325 if ( d->dbuf_out.dl ) 326 dsp_wrintr(d); 327 } 328 if ( reason & 2 ) { 329 if ( d->dbuf_in.dl ) 330 dsp_rdintr(d); 331 } 332 if ( c & 2 ) 333 inb(DSP_DATA_AVL16); /* 16-bit int ack */ 334 if (c & 1) 335 inb(DSP_DATA_AVAIL); /* 8-bit int ack */ 336 337 /* 338 * the sb16 might have multiple sources etc. 339 */ 340 if (d->bd_flags & BD_F_SB16 && (c & 3) ) 341 goto again; 342} 343 344/* 345 * device-specific function called back from the dma module. 346 * The reason of the callback is the second argument. 347 * NOTE: during operations, some ioctl can be called to change 348 * settings (e.g. speed, channels, format), and the default 349 * ioctl handler will just record the change and set the 350 * flag SND_F_INIT. The callback routine is in charge of applying 351 * the changes at the next convenient time (typically, at the 352 * start of operations). For full duplex devices, in some cases the 353 * init requires both channels to be idle. 354 */ 355static int 356sb_callback(snddev_info *d, int reason) 357{ 358 int rd = reason & SND_CB_RD ; 359 snd_dbuf *b = (rd) ? & (d->dbuf_in) : & (d->dbuf_out) ; 360 int l = b->dl ; 361 362 switch (reason & SND_CB_REASON_MASK) { 363 case SND_CB_INIT : /* called with int enabled and no pending io */ 364 /* 365 * set the speed 366 */ 367 dsp_speed(d); 368 /* 369 * set the desired DMA blocksize (influences select behaviour) 370 */ 371 snd_set_blocksize(d); 372 /* 373 * since native mulaw is not present, emulate it. 374 */ 375 if ( (d->play_fmt & AFMT_MU_LAW) || (d->rec_fmt & AFMT_MU_LAW) ) 376 d->flags |= SND_F_XLAT8 ; 377 else 378 d->flags &= ~SND_F_XLAT8 ; 379 380 /* 381 * there are too many flavours of SB for my taste... here i try to do 382 * the proper initialization for each one. 383 */ 384 if (PLAIN_SB16(d->bd_flags)) { 385 u_char c, c1 ; 386 387 /* the original SB16 (non-PnP, or PnP, or Vibra16C) 388 * can do full duplex using one 16-bit channel 389 * and one 8-bit channel. It needs to be programmed to 390 * use split format though. 391 * I DON'T do this for the Vibra16X because I have no idea 392 * of what needs to be done there... 393 * 394 * I use the following algorithm: 395 * 1. check which direction(s) are active; 396 * 2. check if we should swap dma channels 397 * 3. check if we can do the swap. 398 */ 399 int swap = 1 ; /* default... */ 400 401 if (d->play_fmt == 0) { 402 /* do whatever the read channel wants */ 403 if ( d->rec_fmt == AFMT_S16_LE && d->dbuf_in.chan > 4 ) 404 swap = 0; 405 if ( d->rec_fmt != AFMT_S16_LE && d->dbuf_in.chan < 4 ) 406 swap = 0; 407 } else { 408 /* privilege the write channel */ 409 if ( d->play_fmt == AFMT_S16_LE && d->dbuf_out.chan > 4 ) 410 swap = 0; 411 if ( d->play_fmt != AFMT_S16_LE && d->dbuf_out.chan < 4 ) 412 swap = 0; 413 if ( d->rec_fmt ) { 414 /* check for possible config errors. 415 * This cannot happen at open time since even in 416 * case of opening rw we privilege the play 417 * channel. 418 */ 419 if (d->rec_fmt == d->play_fmt) { 420 DDB(printf("sorry, read DMA channel unavailable\n")); 421 } 422 } 423 } 424 DEB(printf("sb16: play_fmt %d, rec_fmt %x, swap %d\n", 425 d->play_fmt, d->rec_fmt, swap);) 426 if (swap) { 427 int c = d->dbuf_in.chan ; 428 d->dbuf_in.chan = d->dbuf_out.chan; 429 d->dbuf_out.chan = c ; 430 } 431 } else if (d->bd_flags & BD_F_ESS) { 432 u_char c ; 433 if (d->play_fmt == 0) { 434 /* initialize for record */ 435 static u_char cmd[] = { 436 0x51,0xd0,0x71,0xf4,0x51,0x98,0x71,0xbc 437 }; 438 ess_write(d->io_base, 0xb8, 0x0e); 439 c = ( ess_read(d->io_base, 0xa8) & 0xfc ) | 1 ; 440 if (d->flags & SND_F_STEREO) 441 c++ ; 442 ess_write(d->io_base, 0xa8, c); 443 ess_write(d->io_base, 0xb9, 2); /* 4bytes/transfer */ 444 /* 445 * set format in b6, b7 446 */ 447 } else { 448 /* initialize for play */ 449 static u_char cmd[] = { 450 0x80,0x51,0xd0,0x00,0x71,0xf4, 451 0x80,0x51,0x98,0x00,0x71,0xbc 452 }; 453 } 454 } 455 reset_dbuf(& (d->dbuf_in), SND_CHAN_RD ); 456 reset_dbuf(& (d->dbuf_out), SND_CHAN_WR ); 457 break ; 458 459 case SND_CB_START : /* called with int disabled */ 460 if (d->bd_flags & BD_F_SB16) { 461 u_char c, c1 ; 462 463 if (d->bd_flags & BD_F_SB16X) { 464 /* just a guess: on the Vibra16X, the first 465 * op started takes the first dma channel, 466 * the second one takes the next... 467 * The default is to be ready for play. 468 */ 469 int swap = 0 ; 470 DEB(printf("start %s -- now dma %d:%d\n", 471 rd ? "rd" : "wr", 472 d->dbuf_out.chan, d->dbuf_in.chan);); 473 /* swap only if both channels are idle 474 * play: dl=0, since there is no pause; 475 * rec: rl=0 476 */ 477 if ( rd && d->dbuf_out.dl == 0 && d->dbuf_in.rl == 0 ) { 478 /* must swap channels, but also save dl */ 479 int c = d->dbuf_in.chan ; 480 int dl = d->dbuf_in.dl ; 481 d->dbuf_in.chan = d->dbuf_out.chan; 482 d->dbuf_out.chan = c ; 483 reset_dbuf(& (d->dbuf_in), SND_CHAN_RD ); 484 reset_dbuf(& (d->dbuf_out), SND_CHAN_WR ); 485 d->dbuf_in.dl = dl ; 486 printf("swapped -- now dma %d:%d\n", 487 d->dbuf_out.chan, d->dbuf_in.chan); 488 } 489 } 490 491 /* 492 * XXX note: c1 and l should be set basing on d->rec_fmt, 493 * but there is no choice once a 16 or 8-bit channel 494 * is assigned. This means that if the application 495 * tries to use a bad format, the sound will not be nice. 496 */ 497 if ( b->chan > 4 498 || (rd && d->rec_fmt == AFMT_S16_LE) 499 || (!rd && d->play_fmt == AFMT_S16_LE) 500 ) { 501 c = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_DMA16 ; 502 c1 = DSP_F16_SIGNED ; 503 l /= 2 ; 504 } else { 505 c = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_DMA8 ; 506 c1 = 0 ; 507 } 508 c |= (rd) ? DSP_F16_ADC : DSP_F16_DAC ; 509 if (d->flags & SND_F_STEREO) 510 c1 |= DSP_F16_STEREO ; 511 512 sb_cmd(d->io_base, c ); 513 sb_cmd3(d->io_base, c1 , l - 1) ; 514 } else if (d->bd_flags & BD_F_ESS) { 515 /* XXX this code is still incomplete */ 516 sb_cmd2(d->io_base, 0xb8, rd ? 4 : 0xe ) ; /* auto dma */ 517 sb_cmd2(d->io_base, 0xa8, d->flags & SND_F_STEREO ? 1 : 2) ; 518 sb_cmd2(d->io_base, 0xb9, 2) ; /* demand dma */ 519 } else { /* SBPro -- stereo not supported */ 520 u_char c ; 521 if (!rd) 522 sb_cmd(d->io_base, DSP_CMD_SPKON); 523 /* code for the SB2 and SB3, only MONO */ 524 if (d->bd_flags & BD_F_HISPEED) 525 c = (rd) ? 0x98 : 0x90 ; 526 else 527 c = (rd) ? 0x2c : 0x1c ; 528 if (d->flags & SND_F_STEREO) 529 sb_setmixer(d->io_base, 0xe, 2 ); 530 else 531 sb_setmixer(d->io_base, 0xe, 0 ); 532 /* 533 * some ESS extensions -- they can do 16 bits 534 */ 535 if ( (rd && d->rec_fmt == AFMT_S16_LE) || 536 (!rd && d->play_fmt == AFMT_S16_LE) ) { 537 c |= 1; 538 l /= 2 ; 539 } 540 sb_cmd3(d->io_base, 0x48 , l - 1) ; 541 sb_cmd(d->io_base, c ) ; 542 } 543 break; 544 545 case SND_CB_ABORT : /* XXX */ 546 case SND_CB_STOP : 547 { 548 int cmd = DSP_CMD_DMAPAUSE_8 ; /* default: halt 8 bit chan */ 549 if ( b->chan > 4 550 || (rd && d->rec_fmt == AFMT_S16_LE) 551 || (!rd && d->play_fmt == AFMT_S16_LE) 552 ) 553 cmd = DSP_CMD_DMAPAUSE_16 ; 554 if (d->bd_flags & BD_F_HISPEED) { 555 sb_reset_dsp(d->io_base); 556 if (d->bd_flags & BD_F_ESS) 557 sb_cmd(d->io_base, 0xc6 ); /* enable extended ESS mode */ 558 d->flags |= SND_F_INIT ; 559 } else { 560 sb_cmd(d->io_base, cmd); /* pause dma. */ 561 /* 562 * The above seems to have the undocumented side effect of 563 * blocking the other side as well. If the other 564 * channel was active (SB16) I have to re-enable it :( 565 */ 566 if ( (rd && d->dbuf_out.dl) || 567 (!rd && d->dbuf_in.dl) ) 568 sb_cmd(d->io_base, cmd == DSP_CMD_DMAPAUSE_8 ? 569 0xd6 : 0xd4); /* continue other dma */ 570 } 571 if (d->bd_flags & BD_F_SB16X) { 572 /* restore possible swapped channels. 573 * The default is to be ready for play. 574 * XXX right now, it kills all input on overflow 575 */ 576 if ( rd && d->dbuf_out.dl == 0 ) { 577 /* must swap channels ? */ 578 int c = d->dbuf_in.chan ; 579 d->dbuf_in.chan = d->dbuf_out.chan; 580 d->dbuf_out.chan = c ; 581 reset_dbuf(& (d->dbuf_in), SND_CHAN_RD ); 582 reset_dbuf(& (d->dbuf_out), SND_CHAN_WR ); 583 printf("restored -- now dma %d:%d\n", 584 d->dbuf_out.chan, d->dbuf_in.chan); 585 } 586 } 587 } 588 DEB( sb_cmd(d->io_base, DSP_CMD_SPKOFF) ); /* speaker off */ 589 break ; 590 591 } 592 return 0 ; 593} 594 595/* 596 * The second part of the file contains all functions specific to 597 * the board and (usually) not exported to other modules. 598 */ 599 600int 601sb_reset_dsp(int io_base) 602{ 603 int loopc; 604 605 outb(io_base + SBDSP_RST, 3); 606 DELAY(100); 607 outb(io_base + SBDSP_RST, 0); 608 for (loopc = 0; loopc<100 && !(inb(DSP_DATA_AVAIL) & 0x80); loopc++) 609 DELAY(30); 610 611 if (inb(DSP_READ) != 0xAA) { 612 DEB(printf("sb_reset_dsp 0x%x failed\n", io_base)); 613 return 0; /* Sorry */ 614 } 615 return 1; 616} 617 618/* 619 * only used in sb_attach from here. 620 */ 621 622static void 623sb_dsp_init(snddev_info *d, struct isa_device *dev) 624{ 625 int i, x; 626 char *fmt = NULL ; 627 int io_base = dev->id_iobase ; 628 629 d->bd_id = 0 ; 630 631 sb_reset_dsp(io_base); 632 sb_cmd(io_base, DSP_CMD_GETVER); /* Get version */ 633 634 for (i = 10000; i; i--) { /* perhaps wait longer on a fast machine ? */ 635 if (inb(DSP_DATA_AVAIL) & 0x80) { /* wait for Data Ready */ 636 if ( (d->bd_id & 0xff00) == 0) 637 d->bd_id = inb(DSP_READ) << 8; /* major */ 638 else { 639 d->bd_id |= inb(DSP_READ); /* minor */ 640 break; 641 } 642 } else 643 DELAY(20); 644 } 645 646 /* 647 * now do various initializations depending on board id. 648 */ 649 650 fmt = "SoundBlaster %d.%d" ; /* default */ 651 652 switch ( d->bd_id >> 8 ) { 653 case 0 : 654 printf("\n\nFailed to get SB version (%x) - possible I/O conflict\n\n", 655 inb(DSP_DATA_AVAIL)); 656 d->bd_id = 0x100; 657 case 1 : /* old sound blaster has nothing... */ 658 break ; 659 660 case 2 : 661 d->dbuf_in.chan = d->dbuf_out.chan ; /* half duplex */ 662 d->bd_flags |= BD_F_DUP_MIDI ; 663 664 if (d->bd_id == 0x200) 665 break ; /* no mixer on the 2.0 */ 666 d->bd_flags &= ~BD_F_MIX_MASK ; 667 d->bd_flags |= BD_F_MIX_CT1335 ; 668 669 break ; 670 case 4 : 671 fmt = "SoundBlaster 16 %d.%d"; 672 d->audio_fmt |= AFMT_FULLDUPLEX | AFMT_WEIRD | AFMT_S8 | AFMT_S16_LE; 673 d->bd_flags |= BD_F_SB16; 674 d->bd_flags &= ~BD_F_MIX_MASK ; 675 d->bd_flags |= BD_F_MIX_CT1745 ; 676 677 /* soft irq/dma configuration */ 678 x = -1 ; 679 if (d->irq == 5) x = 2; 680 else if (d->irq == 7) x = 4; 681 else if (d->irq == 9) x = 1; 682 else if (d->irq == 10) x = 8; 683 if (x == -1) 684 printf("<%s>%d: bad irq %d (only 5,7,9,10 allowed)\n", 685 d->name, dev->id_unit, d->irq); 686 else 687 sb_setmixer(io_base, IRQ_NR, x); 688 if (d->dbuf_out.chan == d->dbuf_in.chan) { 689 printf("WARNING: sb: misconfigured secondary DMA channel\n"); 690 } 691 sb_setmixer(io_base, DMA_NR, (1 << d->dbuf_out.chan) | (1 << d->dbuf_in.chan)); 692 break ; 693 694 case 3 : 695 d->dbuf_in.chan = d->dbuf_out.chan ; /* half duplex */ 696 fmt = "SoundBlaster Pro %d.%d"; 697 d->bd_flags |= BD_F_DUP_MIDI ; 698 d->bd_flags &= ~BD_F_MIX_MASK ; 699 d->bd_flags |= BD_F_MIX_CT1345 ; 700 if (d->bd_id == 0x301) { 701 int ess_major = 0, ess_minor = 0; 702 703 /* 704 * Try to detect ESS chips. 705 */ 706 707 sb_cmd(io_base, DSP_CMD_GETID); /* Return ident. bytes. */ 708 709 for (i = 1000; i; i--) { 710 if (inb(DSP_DATA_AVAIL) & 0x80) { /* wait for Data Ready */ 711 if (ess_major == 0) 712 ess_major = inb(DSP_READ); 713 else { 714 ess_minor = inb(DSP_READ); 715 break; 716 } 717 } else 718 DELAY(20); 719 } 720 721 if (ess_major == 0x48 && (ess_minor & 0xf0) == 0x80) { 722 /* the ESS488 can be treated as an SBPRO */ 723 printf("ESS488 (rev %d)\n", ess_minor & 0x0f); 724 break ; 725 } else if (ess_major == 0x68 && (ess_minor & 0xf0) == 0x80) { 726 int rev = ess_minor & 0xf ; 727 if ( rev >= 8 ) 728 printf("ESS1868 (rev %d)\n", rev); 729 else 730 printf("ESS688 (rev %d)\n", rev); 731 /* d->audio_fmt |= AFMT_S16_LE; */ /* not yet... */ 732 break ; /* XXX */ 733 } else { 734 printf("Unknown card 0x%x 0x%x -- hope it is SBPRO\n", 735 ess_major, ess_minor); 736 break ; 737 } 738 } 739 740 } 741 742 snprintf(d->name, sizeof(d->name), 743 fmt, (d->bd_id >> 8) &0xff, d->bd_id & 0xff); 744 745 sb_mix_init(d); 746} 747 748static void 749sb_mix_init(snddev_info *d) 750{ 751 switch (d->bd_flags & BD_F_MIX_MASK) { 752 case BD_F_MIX_CT1345 : /* SB 3.0 has 1345 mixer */ 753 754 d->mix_devs = SBPRO_MIXER_DEVICES ; 755 d->mix_rec_devs = SBPRO_RECORDING_DEVICES ; 756 d->mix_recsrc = SOUND_MASK_MIC ; 757 758 sb_setmixer(d->io_base, 0, 1 ); /* reset mixer */ 759 sb_setmixer(d->io_base, MIC_VOL , 0x6 ); /* mic volume max */ 760 sb_setmixer(d->io_base, RECORD_SRC , 0x0 ); /* mic source */ 761 sb_setmixer(d->io_base, FM_VOL , 0x0 ); /* no midi */ 762 break ; 763 764 case BD_F_MIX_CT1745 : /* SB16 mixer ... */ 765 766 d->mix_devs = SB16_MIXER_DEVICES ; 767 d->mix_rec_devs = SB16_RECORDING_DEVICES ; 768 d->mix_recsrc = SOUND_MASK_MIC ; 769 } 770 sb_mixer_reset(d); 771} 772 773/* 774 * Common code for the midi and pcm functions 775 * 776 * sb_cmd write a single byte to the CMD port. 777 * sb_cmd2 write a CMD + 1 byte arg 778 * sb_cmd3 write a CMD + 2 byte arg 779 * sb_get_byte returns a single byte from the DSP data port 780 * 781 * ess_write is actually sb_cmd2 782 * ess_read access ext. regs via sb_cmd(0xc0, reg) followed by sb_get_byte 783 */ 784 785int 786sb_cmd(int io_base, u_char val) 787{ 788 int i; 789 790 for (i = 0; i < 1000 ; i++) { 791 if ((inb(io_base + SBDSP_STATUS) & 0x80) == 0) { 792 outb(io_base + SBDSP_CMD, val); 793 return 1; 794 } 795 if (i > 10) 796 DELAY (i > 100 ? 1000 : 10 ); 797 } 798 799 printf("SoundBlaster: DSP Command(0x%02x) timeout. IRQ conflict ?\n", val); 800 return 0; 801} 802 803int 804sb_cmd3(int io_base, u_char cmd, int val) 805{ 806 if (sb_cmd(io_base, cmd)) { 807 sb_cmd(io_base, val & 0xff ); 808 sb_cmd(io_base, (val>>8) & 0xff ); 809 return 1 ; 810 } else 811 return 0; 812} 813 814int 815sb_cmd2(int io_base, u_char cmd, int val) 816{ 817 if (sb_cmd(io_base, cmd)) { 818 sb_cmd(io_base, val & 0xff ); 819 return 1 ; 820 } else 821 return 0; 822} 823 824/* 825 * in the SB, there is a set of indirect "mixer" registers with 826 * address at offset 4, data at offset 5 827 */ 828void 829sb_setmixer(int io_base, u_int port, u_int value) 830{ 831 u_long flags; 832 833 flags = spltty(); 834 outb(io_base + 4, (u_char) (port & 0xff)); /* Select register */ 835 DELAY(10); 836 outb(io_base + 5, (u_char) (value & 0xff)); 837 DELAY(10); 838 splx(flags); 839} 840 841int 842sb_getmixer(int io_base, u_int port) 843{ 844 int val; 845 u_long flags; 846 847 flags = spltty(); 848 outb(io_base + SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */ 849 DELAY(10); 850 val = inb(io_base + SB_MIX_DATA); 851 DELAY(10); 852 splx(flags); 853 854 return val; 855} 856 857u_int 858sb_get_byte(int io_base) 859{ 860 int i; 861 862 for (i = 1000; i; i--) 863 if (inb(DSP_DATA_AVAIL) & 0x80) 864 return inb(DSP_READ); 865 else 866 DELAY(20); 867 return 0xffff; 868} 869 870int 871ess_write(int io_base, u_char reg, int val) 872{ 873 return sb_cmd2(io_base, reg, val); 874} 875 876int 877ess_read(int io_base, u_char reg) 878{ 879 if (!sb_cmd(io_base, 0xc0) || !sb_cmd(io_base, reg) ) 880 return 0xffff ; 881 return sb_get_byte(io_base); 882} 883 884 885/* 886 * various utility functions for the DSP 887 */ 888 889/* 890 * dsp_speed updates the speed setting from the descriptor. make sure 891 * it is called at spltty(). 892 * Besides, it takes care of stereo setting. 893 */ 894static int 895dsp_speed(snddev_info *d) 896{ 897 u_char tconst; 898 u_long flags; 899 int max_speed = 44100, speed = d->play_speed ; 900 901 /* 902 * special code for the SB16 903 */ 904 if (d->bd_flags & BD_F_SB16) { 905 RANGE (speed, 5000, 45000); 906 d->play_speed = d->rec_speed = speed ; 907 sb_cmd(d->io_base, 0x41); 908 sb_cmd(d->io_base, d->play_speed >> 8 ); 909 sb_cmd(d->io_base, d->play_speed & 0xff ); 910 sb_cmd(d->io_base, 0x42); 911 sb_cmd(d->io_base, d->rec_speed >> 8 ); 912 sb_cmd(d->io_base, d->rec_speed & 0xff ); 913 return speed ; 914 } 915 916 /* 917 * special code for the ESS ... 918 */ 919 if (d->bd_flags & BD_F_ESS) { 920 int t; 921 RANGE (speed, 5000, 49000); 922 if (speed > 22000) { 923 t = (795500 + speed / 2) / speed; 924 speed = (795500 + t / 2) / t ; 925 t = (256 - t ) | 0x80 ; 926 } else { 927 t = (397700 + speed / 2) / speed; 928 speed = (397700 + t / 2) / t ; 929 t = 128 - t ; 930 } 931 ess_write(d->io_base, 0xa1, t); /* set time constant */ 932 d->play_speed = d->rec_speed = speed ; 933 speed = (speed * 9 ) / 20 ; 934 t = 256-7160000/(speed*82); 935 ess_write(d->io_base,0xa2,t); 936 return speed ; 937 } 938 939 /* 940 * This is code for the SB3.x and lower. 941 * Only some models can do stereo, and only if not 942 * simultaneously using midi. 943 * At the moment we do not support either... 944 */ 945#if 0 946 d->flags &= ~SND_F_STEREO; 947#endif 948 949 /* 950 * here enforce speed limitations. 951 */ 952 if (d->bd_id <= 0x200) 953 max_speed = 22050; /* max 22050 on SB 1.X */ 954 955 /* 956 * SB models earlier than SB Pro have low limit for the 957 * input rate. Note that this is only for input, but since 958 * we do not support separate values for rec & play.... 959 */ 960 if (d->bd_id <= 0x200) 961 max_speed = 13000; 962 else if (d->bd_id < 0x300) 963 max_speed = 15000; 964 965 RANGE(speed, 4000, max_speed); 966 967 if (d->flags & SND_F_STEREO) /* really unused right now... */ 968 speed *= 2; 969 970 /* 971 * Now the speed should be valid. Compute the value to be 972 * programmed into the board. 973 */ 974 975 if (speed > 22050) { /* High speed mode on 2.01/3.xx */ 976 int tmp; 977 978 tconst = (u_char) ((65536 - ((256000000 + speed / 2) / speed)) >> 8) ; 979 d->bd_flags |= BD_F_HISPEED ; 980 981 flags = spltty(); 982 sb_cmd2(d->io_base, 0x40, tconst); /* set time constant */ 983 splx(flags); 984 985 tmp = 65536 - (tconst << 8); 986 speed = (256000000 + tmp / 2) / tmp; 987 } else { 988 int tmp; 989 990 d->bd_flags &= ~BD_F_HISPEED ; 991 tconst = (256 - ((1000000 + speed / 2) / speed)) & 0xff; 992 993 flags = spltty(); 994 sb_cmd2(d->io_base, 0x40, tconst); /* set time constant */ 995 splx(flags); 996 997 tmp = 256 - tconst; 998 speed = (1000000 + tmp / 2) / tmp; 999 } 1000 1001 if (d->flags & SND_F_STEREO) /* really unused right now... */ 1002 speed /= 2; 1003 1004 d->play_speed = d->rec_speed = speed; 1005 return speed; 1006} 1007 1008/* 1009 * mixer support, originally in sb_mixer.c 1010 */ 1011 1012static void 1013sb_set_recsrc(snddev_info *d, int mask) 1014{ 1015 u_char recdev ; 1016 1017 mask &= d->mix_rec_devs; 1018 switch (d->bd_flags & BD_F_MIX_MASK) { 1019 case BD_F_MIX_CT1345 : 1020 if (mask == SOUND_MASK_LINE) 1021 recdev = 6 ; 1022 else if (mask == SOUND_MASK_CD) 1023 recdev = 2 ; 1024 else { /* default: mic */ 1025 mask = SOUND_MASK_MIC ; 1026 recdev = 0 ; 1027 } 1028 sb_setmixer(d->io_base, RECORD_SRC, 1029 recdev | (sb_getmixer(d->io_base, RECORD_SRC) & ~7 )); 1030 break ; 1031 case BD_F_MIX_CT1745 : /* sb16 */ 1032 if (mask == 0) 1033 mask = SOUND_MASK_MIC ; /* XXX For compatibility. Bug ? */ 1034 recdev = 0 ; 1035 if (mask & SOUND_MASK_MIC) 1036 recdev |= 1 ; 1037 if (mask & SOUND_MASK_CD) 1038 recdev |= 6 ; /* l+r cd */ 1039 if (mask & SOUND_MASK_LINE) 1040 recdev |= 0x18 ; /* l+r line */ 1041 if (mask & SOUND_MASK_SYNTH) 1042 recdev |= 0x60 ; /* l+r midi */ 1043 sb_setmixer(d->io_base, SB16_IMASK_L, recdev); 1044 sb_setmixer(d->io_base, SB16_IMASK_R, recdev); 1045 /* 1046 * since the same volume controls apply to the input and 1047 * output sections, the best approach to have a consistent 1048 * behaviour among cards would be to disable the output path 1049 * on devices which are used to record. 1050 * However, since users like to have feedback, we only disable 1051 * the mike -- permanently. 1052 */ 1053 sb_setmixer(d->io_base, SB16_OMASK, 0x1f & ~1); 1054 break ; 1055 } 1056 d->mix_recsrc = mask; 1057} 1058 1059static void 1060sb_mixer_reset(snddev_info *d) 1061{ 1062 int i; 1063 1064 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) 1065 sb_mixer_set(d, i, levels[i]); 1066 if (d->bd_flags & BD_F_SB16) { 1067 sb_setmixer(d->io_base, 0x3c, 0x1f); /* make all output active */ 1068 sb_setmixer(d->io_base, 0x3d, 0); /* make all inputs-l off */ 1069 sb_setmixer(d->io_base, 0x3e, 0); /* make all inputs-r off */ 1070 } 1071 sb_set_recsrc(d, SOUND_MASK_MIC); 1072} 1073 1074static int 1075sb_mixer_set(snddev_info *d, int dev, int value) 1076{ 1077 int left = value & 0x000000ff; 1078 int right = (value & 0x0000ff00) >> 8; 1079 int regoffs; 1080 u_char val; 1081 mixer_tab *iomap; 1082 1083#ifdef JAZZ16 1084 if (d->bd_flags & BD_F_JAZZ16 && d->bd_flags & BD_F_JAZZ16_2) 1085 return smw_mixer_set(dev, value); 1086#endif 1087 1088 if (dev == SOUND_MIXER_RECSRC) { 1089 sb_set_recsrc(d, value); 1090 return 0 ; 1091 } 1092 if (left > 100) 1093 left = 100; 1094 if (right > 100) 1095 right = 100; 1096 1097 if (dev > 31) 1098 return EINVAL ; 1099 1100 if (!(d->mix_devs & (1 << dev))) /* Not supported */ 1101 return EINVAL; 1102 1103 switch ( d->bd_flags & BD_F_MIX_MASK ) { 1104 default: 1105 /* mixer unknown, fail... */ 1106 return EINVAL ;/* XXX change this */ 1107 case BD_F_MIX_CT1345 : 1108 iomap = &sbpro_mix ; 1109 break; 1110 case BD_F_MIX_CT1745 : 1111 iomap = &sb16_mix ; 1112 break; 1113 /* XXX how about the SG NX Pro, iomap = sgnxpro_mix */ 1114 } 1115 regoffs = (*iomap)[dev][LEFT_CHN].regno; 1116 if (regoffs == 0) 1117 return EINVAL; 1118 1119 val = sb_getmixer(d->io_base, regoffs); 1120 1121 change_bits(iomap, &val, dev, LEFT_CHN, left); 1122 1123 d->mix_levels[dev] = left | (left << 8); 1124 1125 if ((*iomap)[dev][RIGHT_CHN].regno != regoffs) { /* Change register */ 1126 sb_setmixer(d->io_base, regoffs, val); /* Save the old one */ 1127 regoffs = (*iomap)[dev][RIGHT_CHN].regno; 1128 1129 if (regoffs == 0) 1130 return 0 ; /* Just left channel present */ 1131 1132 val = sb_getmixer(d->io_base, regoffs); /* Read the new one */ 1133 } 1134 change_bits(iomap, &val, dev, RIGHT_CHN, right); 1135 1136 sb_setmixer(d->io_base, regoffs, val); 1137 1138 d->mix_levels[dev] = left | (right << 8); 1139 return 0 ; /* ok */ 1140} 1141 1142/* 1143 * now support for some PnP boards. 1144 */ 1145 1146#if NPNP > 0 1147static char *ess1868_probe(u_long csn, u_long vend_id); 1148static void ess1868_attach(u_long csn, u_long vend_id, char *name, 1149 struct isa_device *dev); 1150 1151static struct pnp_device ess1868 = { 1152 "ESS1868", 1153 ess1868_probe, 1154 ess1868_attach, 1155 &nsnd, /* use this for all sound cards */ 1156 &tty_imask /* imask */ 1157}; 1158DATA_SET (pnpdevice_set, ess1868); 1159 1160static char * 1161ess1868_probe(u_long csn, u_long vend_id) 1162{ 1163 /* 1164 * pnp X 1 os enable drq0 3 irq0 12 port0 0x240 1165 */ 1166 if (vend_id == 0x68187316) { 1167 struct pnp_cinfo d ; 1168 read_pnp_parms ( &d , 1 ) ; 1169 if (d.enable == 0) { 1170 printf("This is an ESS1868, but LDN 1 is disabled\n"); 1171 return NULL; 1172 } 1173 return "ESS1868" ; 1174 } 1175 return NULL ; 1176} 1177 1178static void 1179ess1868_attach(u_long csn, u_long vend_id, char *name, 1180 struct isa_device *dev) 1181{ 1182 struct pnp_cinfo d ; 1183 snddev_info tmp_d ; /* patched copy of the basic snddev_info */ 1184 int the_irq = 0 ; 1185 1186 tmp_d = sb_op_desc; 1187 snddev_last_probed = &tmp_d; 1188 1189#if 0 1190 read_pnp_parms ( &d , 3 ); /* disable LDN 3 */ 1191 d.port[0] = 0 ; 1192 d.enable = 0 ; 1193 write_pnp_parms ( &d , 3 ); 1194 1195 read_pnp_parms ( &d , 2 ); /* disable LDN 2 */ 1196 d.port[0] = 0 ; 1197 d.enable = 0 ; 1198 write_pnp_parms ( &d , 2 ); 1199 read_pnp_parms ( &d , 0 ); /* read config base */ 1200 tmp_d.conf_base = d.port[0]; 1201 write_pnp_parms ( &d , 0 ); 1202#endif 1203 1204 read_pnp_parms ( &d , 1 ) ; 1205 dev->id_iobase = d.port[0]; 1206 d.port[1] = 0 ; 1207 d.port[2] = 0 ; 1208 write_pnp_parms ( &d , 1 ); 1209 enable_pnp_card(); 1210 1211 dev->id_drq = d.drq[0] ; /* primary dma */ 1212 dev->id_irq = (1 << d.irq[0] ) ; 1213 dev->id_intr = pcmintr ; 1214 dev->id_flags = 0 /* DV_F_DUAL_DMA | (d.drq[1] ) */; 1215 1216 snddev_last_probed->probe(dev); /* not really necessary but doesn't harm */ 1217 pcmattach(dev); 1218} 1219 1220/* 1221 * A driver for some SB16pnp and compatibles... 1222 * 1223 * Avance Asound 100 -- 0x01009305 1224 * Avance Logic ALS100+ -- 0x10019305 1225 * xxx -- 0x2b008c0e 1226 * 1227 */ 1228 1229static char *sb16pnp_probe(u_long csn, u_long vend_id); 1230static void sb16pnp_attach(u_long csn, u_long vend_id, char *name, 1231 struct isa_device *dev); 1232 1233static struct pnp_device sb16pnp = { 1234 "SB16pnp", 1235 sb16pnp_probe, 1236 sb16pnp_attach, 1237 &nsnd, /* use this for all sound cards */ 1238 &tty_imask /* imask */ 1239}; 1240DATA_SET (pnpdevice_set, sb16pnp); 1241 1242static char * 1243sb16pnp_probe(u_long csn, u_long vend_id) 1244{ 1245 char *s = NULL ; 1246 1247 /* 1248 * The SB16/AWExx cards seem to differ in the fourth byte of 1249 * the vendor id, so I have just masked it for the time being... 1250 * Reported values are: 1251 * SB16 Value PnP: 0x2b008c0e 1252 * SB AWExx PnP: 0x39008c0e 0x9d008c0e 0xc3008c0e 1253 * Vibra16X: 0xf0008c0e 1254 */ 1255 if (vend_id == 0xf0008c0e) 1256 s = "Vibra16X" ; 1257 else if ( (vend_id & 0xffffff) == (0x9d008c0e & 0xffffff) ) 1258 s = "SB16 PnP"; 1259 else if (vend_id == 0x01009305) 1260 s = "Avance Asound 100" ; 1261 else if (vend_id == 0x10019305) 1262 s = "Avance Logic 100+" ; /* Vibra16X-class */ 1263 if (s) { 1264 struct pnp_cinfo d; 1265 read_pnp_parms(&d, 0); 1266 if (d.enable == 0) { 1267 printf("This is a %s, but LDN 0 is disabled\n", s); 1268 return NULL ; 1269 } 1270 return s ; 1271 } 1272 return NULL ; 1273} 1274 1275static void 1276sb16pnp_attach(u_long csn, u_long vend_id, char *name, 1277 struct isa_device *dev) 1278{ 1279 struct pnp_cinfo d ; 1280 snddev_info tmp_d ; /* patched copy of the basic snddev_info */ 1281 1282 tmp_d = sb_op_desc; 1283 snddev_last_probed = &tmp_d; 1284 1285 read_pnp_parms ( &d , 0 ) ; 1286 d.port[1] = 0 ; /* only the first address is used */ 1287 dev->id_iobase = d.port[0]; 1288 tmp_d.synth_base = d.port[2]; 1289 write_pnp_parms ( &d , 0 ); 1290 enable_pnp_card(); 1291 1292 dev->id_drq = d.drq[0] ; /* primary dma */ 1293 dev->id_irq = (1 << d.irq[0] ) ; 1294 dev->id_intr = pcmintr ; 1295 dev->id_flags = DV_F_DUAL_DMA | (d.drq[1] ) ; 1296 1297 pcm_info[dev->id_unit] = tmp_d; /* pcm_info[] will be reinitialized after */ 1298 snddev_last_probed->probe(dev); /* not really necessary but doesn't harm */ 1299 1300 if (vend_id == 0x10019305 || vend_id == 0xf0008c0e) { 1301 /* 1302 * XXX please add here the vend_id for other vibra16X cards... 1303 * And remember, must change tmp_d, not 1304 */ 1305 tmp_d.bd_flags |= BD_F_SB16X ; 1306 } 1307 pcmattach(dev); 1308} 1309#endif /* NPNP */ 1310 1311#endif 1312