sb16.c revision 33474
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 ask_init(d); 212 213 return 0; 214} 215 216static int 217sb_dsp_close(dev_t dev, int flags, int mode, struct proc * p) 218{ 219 int unit; 220 snddev_info *d; 221 u_long s; 222 223 dev = minor(dev); 224 unit = dev >> 4 ; 225 d = &pcm_info[unit] ; 226 227 s = spltty(); 228 d->flags |= SND_F_CLOSING ; 229 splx(s); 230 snd_flush(d); 231 232 sb_cmd(d->io_base, DSP_CMD_SPKOFF ); /* XXX useless ? */ 233 234 d->flags = 0 ; 235 return 0 ; 236} 237 238static int 239sb_dsp_ioctl(dev_t dev, int cmd, caddr_t arg, int mode, struct proc * p) 240{ 241 int unit; 242 snddev_info *d; 243 244 dev = minor(dev); 245 unit = dev >> 4 ; 246 d = &pcm_info[unit] ; 247 248 /* 249 * handle mixer calls first. Reads are in the default handler, 250 * so do not bother about them. 251 */ 252 if ( (cmd & MIXER_WRITE(0)) == MIXER_WRITE(0) ) 253 return sb_mixer_set(d, cmd & 0xff, *(int *)arg) ; 254 255 /* 256 * for the remaining functions, use the default handler. 257 * ENOSYS means that the default handler should take care 258 * of implementing the ioctl. 259 */ 260 261 return ENOSYS ; 262} 263 264static void 265sbintr(int unit) 266{ 267 snddev_info *d = &pcm_info[unit]; 268 int reason = 3, c=1, io_base = d->io_base; 269 270 DEB(printf("got sbintr for unit %d, flags 0x%08lx\n", unit, d->flags)); 271 272 /* 273 * SB < 4.0 is half duplex and has only 1 bit for int source, 274 * so we fake it. SB 4.x (SB16) has the int source in a separate 275 * register. 276 */ 277again: 278 if (d->bd_flags & BD_F_SB16) { 279 c = sb_getmixer(io_base, IRQ_STAT); 280 /* this tells us if the source is 8-bit or 16-bit dma. We 281 * have to check the io channel to map it to read or write... 282 */ 283 reason = 0 ; 284 if ( c & 1 ) { /* 8-bit dma */ 285 if (d->dbuf_out.chan < 4) 286 reason |= 1; 287 if (d->dbuf_in.chan < 4) 288 reason |= 2; 289 } 290 if ( c & 2 ) { /* 16-bit dma */ 291 if (d->dbuf_out.chan >= 4) 292 reason |= 1; 293 if (d->dbuf_in.chan >= 4) 294 reason |= 2; 295 } 296 } 297 /* XXX previous location of ack... */ 298 DEB(printf("sbintr, flags 0x%08lx reason %d\n", d->flags, reason)); 299 if ( reason & 1 ) { /* possibly a write interrupt */ 300 if ( d->dbuf_out.dl ) 301 dsp_wrintr(d); 302 else { 303 if (d->bd_flags & BD_F_SB16) 304 printf("WARNING: wrintr but write DMA inactive!\n"); 305 } 306 } 307 if ( reason & 2 ) { 308 if ( d->dbuf_in.dl ) 309 dsp_rdintr(d); 310 else { 311 if (d->bd_flags & BD_F_SB16) 312 printf("WARNING: rdintr but read DMA inactive!\n"); 313 } 314 } 315 if ( c & 2 ) 316 inb(DSP_DATA_AVL16); /* 16-bit int ack */ 317 if (c & 1) 318 inb(DSP_DATA_AVAIL); /* 8-bit int ack */ 319 320 /* 321 * the sb16 might have multiple sources etc. 322 */ 323 if (d->bd_flags & BD_F_SB16 && (c & 3) ) 324 goto again; 325} 326 327/* 328 * device-specific function called back from the dma module. 329 * The reason of the callback is the second argument. 330 * NOTE: during operations, some ioctl can be called to change 331 * settings (e.g. speed, channels, format), and the default 332 * ioctl handler will just record the change and set the 333 * flag SND_F_INIT. The callback routine is in charge of applying 334 * the changes at the next convenient time (typically, at the 335 * start of operations). For full duplex devices, in some cases the 336 * init requires both channels to be idle. 337 */ 338static int 339sb_callback(snddev_info *d, int reason) 340{ 341 int rd = reason & SND_CB_RD ; 342 snd_dbuf *b = (rd) ? & (d->dbuf_in) : & (d->dbuf_out) ; 343 int l = b->dl ; 344 345 switch (reason & SND_CB_REASON_MASK) { 346 case SND_CB_INIT : /* called with int enabled and no pending io */ 347 dsp_speed(d); 348 snd_set_blocksize(d); 349 if ( (d->play_fmt & AFMT_MU_LAW) || (d->rec_fmt & AFMT_MU_LAW) ) 350 d->flags |= SND_F_XLAT8 ; 351 else 352 d->flags &= ~SND_F_XLAT8 ; 353 354 if (d->bd_flags & BD_F_SB16) { 355 u_char c, c1 ; 356 357 /* the SB16 can do full duplex using one 16-bit channel 358 * and one 8-bit channel. It needs to be programmed to 359 * use split format though. 360 * We use the following algorithm: 361 * 1. check which direction(s) are active; 362 * 2. check if we should swap dma channels 363 * 3. check if we can do the swap. 364 */ 365 int swap = 1 ; /* default... */ 366 367 if (d->play_fmt == 0) { 368 /* do whatever the read channel wants */ 369 if ( d->rec_fmt == AFMT_S16_LE && d->dbuf_in.chan > 4 ) 370 swap = 0; 371 if ( d->rec_fmt != AFMT_S16_LE && d->dbuf_in.chan < 4 ) 372 swap = 0; 373 } else { 374 /* privilege the write channel */ 375 if ( d->play_fmt == AFMT_S16_LE && d->dbuf_out.chan > 4 ) 376 swap = 0; 377 if ( d->play_fmt != AFMT_S16_LE && d->dbuf_out.chan < 4 ) 378 swap = 0; 379 if ( d->rec_fmt ) { 380 /* check for possible config errors. */ 381 if (d->rec_fmt == d->play_fmt) { 382 DDB(printf("sorry, read DMA channel unavailable\n")); 383 } 384 } 385 } 386 DEB(printf("sb16: play_fmt %d, rec_fmt %x, swap %d\n", 387 d->play_fmt, d->rec_fmt, swap);) 388 if (swap) { 389 int c = d->dbuf_in.chan ; 390 d->dbuf_in.chan = d->dbuf_out.chan; 391 d->dbuf_out.chan = c ; 392 } 393 } 394 reset_dbuf(& (d->dbuf_in), SND_CHAN_RD ); 395 reset_dbuf(& (d->dbuf_out), SND_CHAN_WR ); 396 break ; 397 398 case SND_CB_START : /* called with int disabled */ 399 if (d->bd_flags & BD_F_SB16) { 400 u_char c, c1 ; 401 /* 402 * XXX note: c1 and l should be set basing on d->rec_fmt, 403 * but there is no choice once a 16 or 8-bit channel 404 * is assigned. This means that if the application 405 * tries to use a bad format, the sound will not be nice. 406 */ 407 if ( b->chan > 4 ) { 408 c = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_DMA16 ; 409 c1 = DSP_F16_SIGNED ; 410 l /= 2 ; 411 } else { 412 c = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_DMA8 ; 413 c1 = 0 ; 414 } 415 c |= (rd) ? DSP_F16_ADC : DSP_F16_DAC ; 416 if (d->flags & SND_F_STEREO) 417 c1 |= DSP_F16_STEREO ; 418 419 sb_cmd(d->io_base, c ); 420 sb_cmd3(d->io_base, c1 , l - 1) ; 421 } else if (d->bd_flags & BD_F_ESS) { 422 /* XXX this code is still incomplete */ 423 } else { /* SBPro -- stereo not supported */ 424 u_char c ; 425 if (!rd) 426 sb_cmd(d->io_base, DSP_CMD_SPKON); 427 /* code for the SB2 and SB3, only MONO */ 428 if (d->bd_flags & BD_F_HISPEED) 429 c = (rd) ? 0x98 : 0x90 ; 430 else 431 c = (rd) ? 0x2c : 0x1c ; 432 /* 433 * some ESS extensions -- they can do 16 bits 434 */ 435 if ( (rd && d->rec_fmt == AFMT_S16_LE) || 436 (!rd && d->play_fmt == AFMT_S16_LE) ) { 437 c |= 1; 438 l /= 2 ; 439 } 440 sb_cmd3(d->io_base, 0x48 , l - 1) ; 441 sb_cmd(d->io_base, c ) ; 442 } 443 break; 444 445 case SND_CB_ABORT : /* XXX */ 446 case SND_CB_STOP : 447 { 448 int cmd = DSP_CMD_DMAPAUSE_8 ; /* default: halt 8 bit chan */ 449 if ( d->bd_flags & BD_F_SB16 && b->chan > 4 ) 450 cmd = DSP_CMD_DMAPAUSE_16 ; 451 if (d->bd_flags & BD_F_HISPEED) { 452 sb_reset_dsp(d->io_base); 453 d->flags |= SND_F_INIT ; 454 } else { 455 sb_cmd(d->io_base, cmd); /* pause dma. */ 456 /* 457 * The above seems to have the undocumented side effect of 458 * blocking the other side as well. If the other 459 * channel was active (SB16) I have to re-enable it :( 460 */ 461 if ( (rd && d->dbuf_out.dl) || 462 (!rd && d->dbuf_in.dl) ) 463 sb_cmd(d->io_base, cmd == DSP_CMD_DMAPAUSE_8 ? 464 0xd6 : 0xd4); /* continue other dma */ 465 } 466 } 467 DEB( sb_cmd(d->io_base, DSP_CMD_SPKOFF) ); /* speaker off */ 468 break ; 469 470 } 471 return 0 ; 472} 473 474/* 475 * The second part of the file contains all functions specific to 476 * the board and (usually) not exported to other modules. 477 */ 478 479int 480sb_reset_dsp(int io_base) 481{ 482 int loopc; 483 484 outb(io_base + SBDSP_RST, 1); 485 DELAY(100); 486 outb(io_base + SBDSP_RST, 0); 487 for (loopc = 0; loopc<100 && !(inb(DSP_DATA_AVAIL) & 0x80); loopc++) 488 DELAY(30); 489 490 if (inb(DSP_READ) != 0xAA) { 491 DEB(printf("sb_reset_dsp 0x%x failed\n", io_base)); 492 return 0; /* Sorry */ 493 } 494 return 1; 495} 496 497/* 498 * only used in sb_attach from here. 499 */ 500 501static void 502sb_dsp_init(snddev_info *d, struct isa_device *dev) 503{ 504 int i, x; 505 char *fmt = NULL ; 506 int io_base = dev->id_iobase ; 507 508 d->bd_id = 0 ; 509 510 sb_reset_dsp(io_base); 511 sb_cmd(io_base, DSP_CMD_GETVER); /* Get version */ 512 513 for (i = 10000; i; i--) { /* perhaps wait longer on a fast machine ? */ 514 if (inb(DSP_DATA_AVAIL) & 0x80) { /* wait for Data Ready */ 515 if ( (d->bd_id & 0xff00) == 0) 516 d->bd_id = inb(DSP_READ) << 8; /* major */ 517 else { 518 d->bd_id |= inb(DSP_READ); /* minor */ 519 break; 520 } 521 } else 522 DELAY(20); 523 } 524 525 /* 526 * now do various initializations depending on board id. 527 */ 528 529 fmt = "SoundBlaster %d.%d" ; /* default */ 530 531 switch ( d->bd_id >> 8 ) { 532 case 0 : 533 printf("\n\nFailed to get SB version (%x) - possible I/O conflict\n\n", 534 inb(DSP_DATA_AVAIL)); 535 d->bd_id = 0x100; 536 case 1 : /* old sound blaster has nothing... */ 537 break ; 538 539 case 2 : 540 d->dbuf_in.chan = d->dbuf_out.chan ; /* half duplex */ 541 d->bd_flags |= BD_F_DUP_MIDI ; 542 543 if (d->bd_id == 0x200) 544 break ; /* no mixer on the 2.0 */ 545 d->bd_flags &= ~BD_F_MIX_MASK ; 546 d->bd_flags |= BD_F_MIX_CT1335 ; 547 548 break ; 549 case 4 : 550 fmt = "SoundBlaster 16 %d.%d"; 551 d->audio_fmt |= AFMT_FULLDUPLEX | AFMT_WEIRD | AFMT_S8 | AFMT_S16_LE; 552 d->bd_flags |= BD_F_SB16; 553 d->bd_flags &= ~BD_F_MIX_MASK ; 554 d->bd_flags |= BD_F_MIX_CT1745 ; 555 556 /* soft irq/dma configuration */ 557 x = -1 ; 558 if (d->irq == 5) x = 2; 559 else if (d->irq == 7) x = 4; 560 else if (d->irq == 9) x = 1; 561 else if (d->irq == 10) x = 8; 562 if (x == -1) 563 printf("<%s>%d: bad irq %d (only 5,7,9,10 allowed)\n", 564 d->name, dev->id_unit, d->irq); 565 else 566 sb_setmixer(io_base, IRQ_NR, x); 567 if (d->dbuf_out.chan == d->dbuf_in.chan) { 568 printf("WARNING: sb: misconfigured secondary DMA channel\n"); 569 } 570 sb_setmixer(io_base, DMA_NR, (1 << d->dbuf_out.chan) | (1 << d->dbuf_in.chan)); 571 break ; 572 573 case 3 : 574 d->dbuf_in.chan = d->dbuf_out.chan ; /* half duplex */ 575 fmt = "SoundBlaster Pro %d.%d"; 576 d->bd_flags |= BD_F_DUP_MIDI ; 577 d->bd_flags &= ~BD_F_MIX_MASK ; 578 d->bd_flags |= BD_F_MIX_CT1345 ; 579 if (d->bd_id == 0x301) { 580 int ess_major = 0, ess_minor = 0; 581 582 /* 583 * Try to detect ESS chips. 584 */ 585 586 sb_cmd(io_base, DSP_CMD_GETID); /* Return ident. bytes. */ 587 588 for (i = 1000; i; i--) { 589 if (inb(DSP_DATA_AVAIL) & 0x80) { /* wait for Data Ready */ 590 if (ess_major == 0) 591 ess_major = inb(DSP_READ); 592 else { 593 ess_minor = inb(DSP_READ); 594 break; 595 } 596 } else 597 DELAY(20); 598 } 599 600 if (ess_major == 0x48 && (ess_minor & 0xf0) == 0x80) { 601 /* the ESS488 can be treated as an SBPRO */ 602 printf("ESS488 (rev %d)\n", ess_minor & 0x0f); 603 break ; 604 } else if (ess_major == 0x68 && (ess_minor & 0xf0) == 0x80) { 605 int rev = ess_minor & 0xf ; 606 if ( rev >= 8 ) 607 printf("ESS1868 (rev %d)\n", rev); 608 else 609 printf("ESS688 (rev %d)\n", rev); 610 d->audio_fmt |= AFMT_S16_LE; /* in fact it is U16_LE */ 611 break ; /* XXX */ 612 } else { 613 printf("Unknown card 0x%x 0x%x -- hope it is SBPRO\n", 614 ess_major, ess_minor); 615 break ; 616 } 617 } 618 619 } 620 621 sprintf(d->name, fmt, (d->bd_id >> 8) &0xff, d->bd_id & 0xff); 622 623 sb_mix_init(d); 624} 625 626static void 627sb_mix_init(snddev_info *d) 628{ 629 switch (d->bd_flags & BD_F_MIX_MASK) { 630 case BD_F_MIX_CT1345 : /* SB 3.0 has 1345 mixer */ 631 632 d->mix_devs = SBPRO_MIXER_DEVICES ; 633 d->mix_rec_devs = SBPRO_RECORDING_DEVICES ; 634 d->mix_recsrc = SOUND_MASK_MIC ; 635 636 sb_setmixer(d->io_base, 0, 1 ); /* reset mixer */ 637 sb_setmixer(d->io_base, MIC_VOL , 0x6 ); /* mic volume max */ 638 sb_setmixer(d->io_base, RECORD_SRC , 0x0 ); /* mic source */ 639 sb_setmixer(d->io_base, FM_VOL , 0x0 ); /* no midi */ 640 break ; 641 642 case BD_F_MIX_CT1745 : /* SB16 mixer ... */ 643 644 d->mix_devs = SB16_MIXER_DEVICES ; 645 d->mix_rec_devs = SB16_RECORDING_DEVICES ; 646 d->mix_recsrc = SOUND_MASK_MIC ; 647 } 648 sb_mixer_reset(d); 649} 650 651/* 652 * Common code for the midi and pcm functions 653 */ 654 655int 656sb_cmd(int io_base, u_char val) 657{ 658 int i; 659 660 for (i = 0; i < 1000 ; i++) { 661 if ((inb(io_base + SBDSP_STATUS) & 0x80) == 0) { 662 outb(io_base + SBDSP_CMD, val); 663 return 1; 664 } 665 if (i > 10) 666 DELAY (i > 100 ? 1000 : 10 ); 667 } 668 669 printf("SoundBlaster: DSP Command(0x%02x) timeout. IRQ conflict ?\n", val); 670 return 0; 671} 672 673int 674sb_cmd3(int io_base, u_char cmd, int val) 675{ 676 if (sb_cmd(io_base, cmd)) { 677 sb_cmd(io_base, val & 0xff ); 678 sb_cmd(io_base, (val>>8) & 0xff ); 679 return 1 ; 680 } else 681 return 0; 682} 683 684int 685sb_cmd2(int io_base, u_char cmd, int val) 686{ 687 if (sb_cmd(io_base, cmd)) { 688 sb_cmd(io_base, val & 0xff ); 689 return 1 ; 690 } else 691 return 0; 692} 693 694/* 695 * in the SB, there is a set of indirect "mixer" registers with 696 * address at offset 4, data at offset 5 697 */ 698void 699sb_setmixer(int io_base, u_int port, u_int value) 700{ 701 u_long flags; 702 703 flags = spltty(); 704 outb(io_base + 4, (u_char) (port & 0xff)); /* Select register */ 705 DELAY(10); 706 outb(io_base + 5, (u_char) (value & 0xff)); 707 DELAY(10); 708 splx(flags); 709} 710 711int 712sb_getmixer(int io_base, u_int port) 713{ 714 int val; 715 u_long flags; 716 717 flags = spltty(); 718 outb(io_base + 4, (u_char) (port & 0xff)); /* Select register */ 719 DELAY(10); 720 val = inb(io_base + 5); 721 DELAY(10); 722 splx(flags); 723 724 return val; 725} 726 727u_int 728sb_get_byte(int io_base) 729{ 730 int i; 731 732 for (i = 1000; i; i--) 733 if (inb(DSP_DATA_AVAIL) & 0x80) 734 return inb(DSP_READ); 735 else 736 DELAY(20); 737 return 0xffff; 738} 739 740 741 742/* 743 * various utility functions for the DSP 744 */ 745 746/* 747 * dsp_speed updates the speed setting from the descriptor. make sure 748 * it is called at spltty(). 749 * Besides, it takes care of stereo setting. 750 */ 751static int 752dsp_speed(snddev_info *d) 753{ 754 u_char tconst; 755 u_long flags; 756 int max_speed = 44100, speed = d->play_speed ; 757 758 /* 759 * special code for the SB16 760 */ 761 if (d->bd_flags & BD_F_SB16) { 762 RANGE (speed, 5000, 45000); 763 d->play_speed = d->rec_speed = speed ; 764 sb_cmd(d->io_base, 0x41); 765 sb_cmd(d->io_base, d->play_speed >> 8 ); 766 sb_cmd(d->io_base, d->play_speed & 0xff ); 767 sb_cmd(d->io_base, 0x42); 768 sb_cmd(d->io_base, d->rec_speed >> 8 ); 769 sb_cmd(d->io_base, d->rec_speed & 0xff ); 770 return speed ; 771 } 772 773 /* 774 * special code for the ESS ... 775 */ 776 if (d->bd_flags & BD_F_ESS) { 777 int t; 778 RANGE (speed, 4000, 48000); 779 if (speed > 22000) { 780 t = (795500 + speed / 2) / speed; 781 speed = (795500 + t / 2) / t ; 782 t = ( 256 - (795500 + speed / 2) / speed ) | 0x80 ; 783 } else { 784 t = (397700 + speed / 2) / speed; 785 speed = (397700 + t / 2) / t ; 786 t = 128 - (397700 + speed / 2) / speed ; 787 } 788 sb_cmd2(d->io_base, 0xa1, t); /* set time constant */ 789 return speed ; 790 } 791 792 /* 793 * This is code for the SB3.x and lower. 794 * Only some models can do stereo, and only if not 795 * simultaneously using midi. 796 * At the moment we do not support either... 797 */ 798 d->flags &= ~SND_F_STEREO; 799 800 /* 801 * here enforce speed limitations. 802 */ 803 if (d->bd_id <= 0x200) 804 max_speed = 22050; /* max 22050 on SB 1.X */ 805 806 /* 807 * SB models earlier than SB Pro have low limit for the 808 * input rate. Note that this is only for input, but since 809 * we do not support separate values for rec & play.... 810 */ 811 if (d->bd_id <= 0x200) 812 max_speed = 13000; 813 else if (d->bd_id < 0x300) 814 max_speed = 15000; 815 816 RANGE(speed, 4000, max_speed); 817 818 if (d->flags & SND_F_STEREO) /* really unused right now... */ 819 speed *= 2; 820 821 /* 822 * Now the speed should be valid. Compute the value to be 823 * programmed into the board. 824 */ 825 826 if (speed > 22050) { /* High speed mode on 2.01/3.xx */ 827 int tmp; 828 829 tconst = (u_char) ((65536 - ((256000000 + speed / 2) / speed)) >> 8) ; 830 d->bd_flags |= BD_F_HISPEED ; 831 832 flags = spltty(); 833 sb_cmd2(d->io_base, 0x40, tconst); /* set time constant */ 834 splx(flags); 835 836 tmp = 65536 - (tconst << 8); 837 speed = (256000000 + tmp / 2) / tmp; 838 } else { 839 int tmp; 840 841 d->bd_flags &= ~BD_F_HISPEED ; 842 tconst = (256 - ((1000000 + speed / 2) / speed)) & 0xff; 843 844 flags = spltty(); 845 sb_cmd2(d->io_base, 0x40, tconst); /* set time constant */ 846 splx(flags); 847 848 tmp = 256 - tconst; 849 speed = (1000000 + tmp / 2) / tmp; 850 } 851 852 if (d->flags & SND_F_STEREO) /* really unused right now... */ 853 speed /= 2; 854 855 d->play_speed = d->rec_speed = speed; 856 return speed; 857} 858 859/* 860 * mixer support, originally in sb_mixer.c 861 */ 862 863static void 864sb_set_recsrc(snddev_info *d, int mask) 865{ 866 u_char recdev ; 867 868 mask &= d->mix_rec_devs; 869 switch (d->bd_flags & BD_F_MIX_MASK) { 870 case BD_F_MIX_CT1345 : 871 if (mask == SOUND_MASK_LINE) 872 recdev = 6 ; 873 else if (mask == SOUND_MASK_CD) 874 recdev = 2 ; 875 else { /* default: mic */ 876 mask = SOUND_MASK_MIC ; 877 recdev = 0 ; 878 } 879 sb_setmixer(d->io_base, RECORD_SRC, 880 recdev | (sb_getmixer(d->io_base, RECORD_SRC) & ~7 )); 881 break ; 882 case BD_F_MIX_CT1745 : /* sb16 */ 883 if (mask == 0) 884 mask = SOUND_MASK_MIC ; /* XXX For compatibility. Bug ? */ 885 recdev = 0 ; 886 if (mask & SOUND_MASK_MIC) 887 recdev |= 1 ; 888 if (mask & SOUND_MASK_CD) 889 recdev |= 6 ; /* l+r cd */ 890 if (mask & SOUND_MASK_LINE) 891 recdev |= 0x18 ; /* l+r line */ 892 if (mask & SOUND_MASK_SYNTH) 893 recdev |= 0x60 ; /* l+r midi */ 894 sb_setmixer(d->io_base, SB16_IMASK_L, recdev); 895 sb_setmixer(d->io_base, SB16_IMASK_R, recdev); 896 /* 897 * since the same volume controls apply to the input and 898 * output sections, the best approach to have a consistent 899 * behaviour among cards would be to disable the output path 900 * on devices which are used to record. 901 * However, since users like to have feedback, we only disable 902 * the mike -- permanently. 903 */ 904 sb_setmixer(d->io_base, SB16_OMASK, 0x1f & ~1); 905 break ; 906 } 907 d->mix_recsrc = mask; 908} 909 910static void 911sb_mixer_reset(snddev_info *d) 912{ 913 int i; 914 915 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) 916 sb_mixer_set(d, i, levels[i]); 917 if (d->bd_flags & BD_F_SB16) { 918 sb_setmixer(d->io_base, 0x3c, 0x1f); /* make all output active */ 919 sb_setmixer(d->io_base, 0x3d, 0); /* make all inputs-l off */ 920 sb_setmixer(d->io_base, 0x3e, 0); /* make all inputs-r off */ 921 } 922 sb_set_recsrc(d, SOUND_MASK_MIC); 923} 924 925static int 926sb_mixer_set(snddev_info *d, int dev, int value) 927{ 928 int left = value & 0x000000ff; 929 int right = (value & 0x0000ff00) >> 8; 930 int regoffs; 931 u_char val; 932 mixer_tab *iomap; 933 934#ifdef JAZZ16 935 if (d->bd_flags & BD_F_JAZZ16 && d->bd_flags & BD_F_JAZZ16_2) 936 return smw_mixer_set(dev, value); 937#endif 938 939 if (dev == SOUND_MIXER_RECSRC) { 940 sb_set_recsrc(d, value); 941 return 0 ; 942 } 943 if (left > 100) 944 left = 100; 945 if (right > 100) 946 right = 100; 947 948 if (dev > 31) 949 return EINVAL ; 950 951 if (!(d->mix_devs & (1 << dev))) /* Not supported */ 952 return EINVAL; 953 954 switch ( d->bd_flags & BD_F_MIX_MASK ) { 955 default: 956 /* mixer unknown, fail... */ 957 return EINVAL ;/* XXX change this */ 958 case BD_F_MIX_CT1345 : 959 iomap = &sbpro_mix ; 960 break; 961 case BD_F_MIX_CT1745 : 962 iomap = &sb16_mix ; 963 break; 964 /* XXX how about the SG NX Pro, iomap = sgnxpro_mix */ 965 } 966 regoffs = (*iomap)[dev][LEFT_CHN].regno; 967 if (regoffs == 0) 968 return EINVAL; 969 970 val = sb_getmixer(d->io_base, regoffs); 971 972 change_bits(iomap, &val, dev, LEFT_CHN, left); 973 974 d->mix_levels[dev] = left | (left << 8); 975 976 if ((*iomap)[dev][RIGHT_CHN].regno != regoffs) { /* Change register */ 977 sb_setmixer(d->io_base, regoffs, val); /* Save the old one */ 978 regoffs = (*iomap)[dev][RIGHT_CHN].regno; 979 980 if (regoffs == 0) 981 return 0 ; /* Just left channel present */ 982 983 val = sb_getmixer(d->io_base, regoffs); /* Read the new one */ 984 } 985 change_bits(iomap, &val, dev, RIGHT_CHN, right); 986 987 sb_setmixer(d->io_base, regoffs, val); 988 989 d->mix_levels[dev] = left | (right << 8); 990 return 0 ; /* ok */ 991} 992 993/* 994 * now support for some PnP boards. 995 */ 996 997#if NPNP > 0 998static char *ess1868_probe(u_long csn, u_long vend_id); 999static void ess1868_attach(u_long csn, u_long vend_id, char *name, 1000 struct isa_device *dev); 1001 1002static struct pnp_device ess1868 = { 1003 "ESS1868", 1004 ess1868_probe, 1005 ess1868_attach, 1006 &nsnd, /* use this for all sound cards */ 1007 &tty_imask /* imask */ 1008}; 1009DATA_SET (pnpdevice_set, ess1868); 1010 1011static char * 1012ess1868_probe(u_long csn, u_long vend_id) 1013{ 1014 /* 1015 * pnp X 1 os enable drq0 3 irq0 12 port0 0x240 1016 */ 1017 if (vend_id == 0x68187316) { 1018 struct pnp_cinfo d ; 1019 read_pnp_parms ( &d , 1 ) ; 1020 if (d.enable == 0) { 1021 printf("This is an ESS1868, but LDN 1 is disabled\n"); 1022 return NULL; 1023 } 1024 return "ESS1868" ; 1025 } 1026 return NULL ; 1027} 1028 1029static void 1030ess1868_attach(u_long csn, u_long vend_id, char *name, 1031 struct isa_device *dev) 1032{ 1033 struct pnp_cinfo d ; 1034 snddev_info tmp_d ; /* patched copy of the basic snddev_info */ 1035 int the_irq = 0 ; 1036 1037 tmp_d = sb_op_desc; 1038 snddev_last_probed = &tmp_d; 1039 1040#if 0 1041 read_pnp_parms ( &d , 3 ); /* disable LDN 3 */ 1042 d.port[0] = 0 ; 1043 d.enable = 0 ; 1044 write_pnp_parms ( &d , 3 ); 1045 1046 read_pnp_parms ( &d , 2 ); /* disable LDN 2 */ 1047 d.port[0] = 0 ; 1048 d.enable = 0 ; 1049 write_pnp_parms ( &d , 2 ); 1050 read_pnp_parms ( &d , 0 ); /* read config base */ 1051 tmp_d.conf_base = d.port[0]; 1052 write_pnp_parms ( &d , 0 ); 1053#endif 1054 1055 read_pnp_parms ( &d , 1 ) ; 1056 dev->id_iobase = d.port[0]; 1057 d.port[1] = 0 ; 1058 d.port[2] = 0 ; 1059 write_pnp_parms ( &d , 1 ); 1060 enable_pnp_card(); 1061 1062 dev->id_drq = d.drq[0] ; /* primary dma */ 1063 dev->id_irq = (1 << d.irq[0] ) ; 1064 dev->id_intr = pcmintr ; 1065 dev->id_flags = 0 /* DV_F_DUAL_DMA | (d.drq[1] ) */; 1066 1067 snddev_last_probed->probe(dev); /* not really necessary but doesn't harm */ 1068 pcmattach(dev); 1069} 1070 1071static char *opti925_probe(u_long csn, u_long vend_id); 1072static void opti925_attach(u_long csn, u_long vend_id, char *name, 1073 struct isa_device *dev); 1074 1075static struct pnp_device opti925 = { 1076 "opti925", 1077 opti925_probe, 1078 opti925_attach, 1079 &nsnd, /* use this for all sound cards */ 1080 &tty_imask /* imask */ 1081}; 1082DATA_SET (pnpdevice_set, opti925); 1083 1084static char * 1085opti925_probe(u_long csn, u_long vend_id) 1086{ 1087 if (vend_id == 0x2509143e) { 1088 struct pnp_cinfo d ; 1089 read_pnp_parms ( &d , 1 ) ; 1090 if (d.enable == 0) { 1091 printf("This is an OPTi925, but LDN 1 is disabled\n"); 1092 return NULL; 1093 } 1094 return "OPTi925" ; 1095 } 1096 return NULL ; 1097} 1098 1099static void 1100opti925_attach(u_long csn, u_long vend_id, char *name, 1101 struct isa_device *dev) 1102{ 1103 struct pnp_cinfo d ; 1104 snddev_info tmp_d ; /* patched copy of the basic snddev_info */ 1105 int the_irq = 0 ; 1106 1107 tmp_d = sb_op_desc; 1108 snddev_last_probed = &tmp_d; 1109 1110 read_pnp_parms ( &d , 3 ); /* disable LDN 3 */ 1111 the_irq = d.irq[0]; 1112 d.port[0] = 0 ; 1113 d.enable = 0 ; 1114 write_pnp_parms ( &d , 3 ); 1115 1116 read_pnp_parms ( &d , 2 ); /* disable LDN 2 */ 1117 d.port[0] = 0 ; 1118 d.enable = 0 ; 1119 write_pnp_parms ( &d , 2 ); 1120 1121 read_pnp_parms ( &d , 1 ) ; 1122 d.irq[0] = the_irq ; 1123 dev->id_iobase = d.port[0]; 1124 write_pnp_parms ( &d , 1 ); 1125 enable_pnp_card(); 1126 1127 tmp_d.conf_base = d.port[3]; 1128 1129 dev->id_drq = d.drq[0] ; /* primary dma */ 1130 dev->id_irq = (1 << d.irq[0] ) ; 1131 dev->id_intr = pcmintr ; 1132 dev->id_flags = DV_F_DUAL_DMA | (d.drq[1] ) ; 1133 1134 snddev_last_probed->probe(dev); /* not really necessary but doesn't harm */ 1135 1136 pcmattach(dev); 1137 1138} 1139 1140/* 1141 * A driver for some SB16pnp and compatibles... 1142 * 1143 * Avance Asound 100 -- 0x01009305 1144 * xxx -- 0x2b008c0e 1145 * 1146 */ 1147 1148static char *sb16pnp_probe(u_long csn, u_long vend_id); 1149static void sb16pnp_attach(u_long csn, u_long vend_id, char *name, 1150 struct isa_device *dev); 1151 1152static struct pnp_device sb16pnp = { 1153 "SB16pnp", 1154 sb16pnp_probe, 1155 sb16pnp_attach, 1156 &nsnd, /* use this for all sound cards */ 1157 &tty_imask /* imask */ 1158}; 1159DATA_SET (pnpdevice_set, sb16pnp); 1160 1161static char * 1162sb16pnp_probe(u_long csn, u_long vend_id) 1163{ 1164 char *s = NULL ; 1165 1166 /* 1167 * The SB16/AWExx cards seem to differ in the fourth byte of 1168 * the vendor id, so I have just masked it for the time being... 1169 * Reported values are: 1170 * SB16 Value PnP: 0x2b008c0e 1171 * SB AWExx PnP: 0x39008c0e 0x9d008c0e 0xc3008c0e 1172 */ 1173 if ( (vend_id & 0xffffff) == (0x9d008c0e & 0xffffff) ) 1174 s = "SB16 PnP"; 1175 else if (vend_id == 0x01009305) 1176 s = "Avance Asound 100" ; 1177 if (s) { 1178 struct pnp_cinfo d; 1179 read_pnp_parms(&d, 0); 1180 if (d.enable == 0) { 1181 printf("This is a %s, but LDN 0 is disabled\n", s); 1182 return NULL ; 1183 } 1184 return s ; 1185 } 1186 return NULL ; 1187} 1188 1189static void 1190sb16pnp_attach(u_long csn, u_long vend_id, char *name, 1191 struct isa_device *dev) 1192{ 1193 struct pnp_cinfo d ; 1194 snddev_info tmp_d ; /* patched copy of the basic snddev_info */ 1195 1196 tmp_d = sb_op_desc; 1197 snddev_last_probed = &tmp_d; 1198 1199 read_pnp_parms ( &d , 0 ) ; 1200 d.port[1] = 0 ; /* only the first address is used */ 1201 dev->id_iobase = d.port[0]; 1202 tmp_d.synth_base = d.port[2]; 1203 write_pnp_parms ( &d , 0 ); 1204 enable_pnp_card(); 1205 1206 dev->id_drq = d.drq[0] ; /* primary dma */ 1207 dev->id_irq = (1 << d.irq[0] ) ; 1208 dev->id_intr = pcmintr ; 1209 dev->id_flags = DV_F_DUAL_DMA | (d.drq[1] ) ; 1210 1211 pcm_info[dev->id_unit] = tmp_d; 1212 snddev_last_probed->probe(dev); /* not really necessary but doesn't harm */ 1213 1214 pcmattach(dev); 1215} 1216#endif /* NPNP */ 1217 1218#endif 1219