1 /* 2 * Copyright (c) 2000 David Jones <dej@ox.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 /* 28 * Support for VT8233 added by Orion Hodson <oho@acm.org> and tested 29 * by Russell Davies <rd@zip.com.au>. 30 */ 31 32 #include <dev/sound/pcm/sound.h> 33 #include <dev/sound/pcm/ac97.h> 34 35 #include <pci/pcireg.h> 36 #include <pci/pcivar.h> 37 #include <sys/sysctl.h> 38 39 #include <dev/sound/pci/via82c686.h> 40 41 SND_DECLARE_FILE("$FreeBSD$"); 42 43 #define VIA686A_PCI_ID 0x30581106 44 #define VIA8233_PCI_ID 0x30591106 45 46 #define NSEGS 4 /* Number of segments in SGD table */ 47 48 #define SEGS_PER_CHAN (NSEGS/2) 49 50 #define TIMEOUT 50 51 #define VIA_DEFAULT_BUFSZ 0x1000 52 53 #undef DEB 54 #define DEB(x) 55 56 /* we rely on this struct being packed to 64 bits */ 57 struct via_dma_op { 58 u_int32_t ptr; 59 u_int32_t flags; 60 #define VIA_DMAOP_EOL 0x80000000 61 #define VIA_DMAOP_FLAG 0x40000000 62 #define VIA_DMAOP_STOP 0x20000000 63 #define VIA_DMAOP_COUNT(x) ((x)&0x00FFFFFF) 64 }; 65 66 struct via_info; 67 68 struct via_chinfo { 69 struct via_info *parent; 70 struct pcm_channel *channel; 71 struct snd_dbuf *buffer; 72 struct via_dma_op *sgd_table; 73 int dir, blksz; 74 75 int rbase; /* base register for channel */ 76 }; 77 78 struct via_info { 79 bus_space_tag_t st; 80 bus_space_handle_t sh; 81 bus_dma_tag_t parent_dmat; 82 bus_dma_tag_t sgd_dmat; 83 bus_dmamap_t sgd_dmamap; 84 85 struct resource *reg, *irq; 86 int regid, irqid; 87 void *ih; 88 struct ac97_info *codec; 89 90 unsigned int bufsz; 91 92 struct via_chinfo pch, rch; 93 struct via_dma_op *sgd_table; 94 u_int16_t codec_caps; 95 }; 96 97 static u_int32_t via_fmt[] = { 98 AFMT_U8, 99 AFMT_STEREO | AFMT_U8, 100 AFMT_S16_LE, 101 AFMT_STEREO | AFMT_S16_LE, 102 0 103 }; 104 static struct pcmchan_caps via_vracaps = {4000, 48000, via_fmt, 0}; 105 static struct pcmchan_caps via_caps = {48000, 48000, via_fmt, 0}; 106 107 static u_int32_t 108 via_rd(struct via_info *via, int regno, int size) 109 { 110 switch (size) { 111 case 1: 112 return bus_space_read_1(via->st, via->sh, regno); 113 case 2: 114 return bus_space_read_2(via->st, via->sh, regno); 115 case 4: 116 return bus_space_read_4(via->st, via->sh, regno); 117 default: 118 return 0xFFFFFFFF; 119 } 120 } 121 122 123 static void 124 via_wr(struct via_info *via, int regno, u_int32_t data, int size) 125 { 126 127 switch (size) { 128 case 1: 129 bus_space_write_1(via->st, via->sh, regno, data); 130 break; 131 case 2: 132 bus_space_write_2(via->st, via->sh, regno, data); 133 break; 134 case 4: 135 bus_space_write_4(via->st, via->sh, regno, data); 136 break; 137 } 138 } 139 140 /* -------------------------------------------------------------------- */ 141 /* Codec interface */ 142 143 static int 144 via_waitready_codec(struct via_info *via) 145 { 146 int i; 147 148 /* poll until codec not busy */ 149 for (i = 0; (i < TIMEOUT) && 150 (via_rd(via, VIA_CODEC_CTL, 4) & VIA_CODEC_BUSY); i++) 151 DELAY(1); 152 if (i >= TIMEOUT) { 153 printf("via: codec busy\n"); 154 return 1; 155 } 156 157 return 0; 158 } 159 160 161 static int 162 via_waitvalid_codec(struct via_info *via) 163 { 164 int i; 165 166 /* poll until codec valid */ 167 for (i = 0; (i < TIMEOUT) && 168 !(via_rd(via, VIA_CODEC_CTL, 4) & VIA_CODEC_PRIVALID); i++) 169 DELAY(1); 170 if (i >= TIMEOUT) { 171 printf("via: codec invalid\n"); 172 return 1; 173 } 174 175 return 0; 176 } 177 178 179 static int 180 via_write_codec(kobj_t obj, void *addr, int reg, u_int32_t val) 181 { 182 struct via_info *via = addr; 183 184 if (via_waitready_codec(via)) return -1; 185 186 via_wr(via, VIA_CODEC_CTL, 187 VIA_CODEC_PRIVALID | VIA_CODEC_INDEX(reg) | val, 4); 188 189 return 0; 190 } 191 192 193 static int 194 via_read_codec(kobj_t obj, void *addr, int reg) 195 { 196 struct via_info *via = addr; 197 198 if (via_waitready_codec(via)) 199 return -1; 200 201 via_wr(via, VIA_CODEC_CTL, VIA_CODEC_PRIVALID | VIA_CODEC_READ | VIA_CODEC_INDEX(reg),4); 202 203 if (via_waitready_codec(via)) 204 return -1; 205 206 if (via_waitvalid_codec(via)) 207 return -1; 208 209 return via_rd(via, VIA_CODEC_CTL, 2); 210 } 211 212 static kobj_method_t via_ac97_methods[] = { 213 KOBJMETHOD(ac97_read, via_read_codec), 214 KOBJMETHOD(ac97_write, via_write_codec), 215 { 0, 0 } 216 }; 217 AC97_DECLARE(via_ac97); 218 219 /* -------------------------------------------------------------------- */ 220 221 static int 222 via_buildsgdt(struct via_chinfo *ch) 223 { 224 u_int32_t phys_addr, flag; 225 int i, segs, seg_size; 226 227 /* 228 * Build the scatter/gather DMA (SGD) table. 229 * There are four slots in the table: two for play, two for record. 230 * This creates two half-buffers, one of which is playing; the other 231 * is feeding. 232 */ 233 seg_size = ch->blksz; 234 segs = sndbuf_getsize(ch->buffer) / seg_size; 235 phys_addr = vtophys(sndbuf_getbuf(ch->buffer)); 236 237 for (i = 0; i < segs; i++) { 238 flag = (i == segs - 1)? VIA_DMAOP_EOL : VIA_DMAOP_FLAG; 239 ch->sgd_table[i].ptr = phys_addr + (i * seg_size); 240 ch->sgd_table[i].flags = flag | seg_size; 241 } 242 243 return 0; 244 } 245 246 /* channel interface */ 247 static void * 248 viachan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, 249 struct pcm_channel *c, int dir) 250 { 251 struct via_info *via = devinfo; 252 struct via_chinfo *ch = (dir == PCMDIR_PLAY)? &via->pch : &via->rch; 253 254 ch->parent = via; 255 ch->channel = c; 256 ch->buffer = b; 257 ch->dir = dir; 258 ch->sgd_table = &via->sgd_table[(dir == PCMDIR_PLAY)? 0 : SEGS_PER_CHAN]; 259 if (ch->dir == PCMDIR_PLAY) { 260 ch->rbase = VIA_PLAY_BASE; 261 } else { 262 ch->rbase = VIA_REC_BASE; 263 } 264 265 if (sndbuf_alloc(ch->buffer, via->parent_dmat, via->bufsz) == -1) 266 return NULL; 267 return ch; 268 } 269 270 static int 271 viachan_setformat(kobj_t obj, void *data, u_int32_t format) 272 { 273 struct via_chinfo *ch = data; 274 struct via_info *via = ch->parent; 275 276 u_int32_t r = ch->rbase + VIA_RP_MODE; 277 u_int8_t v = via_rd(via, r, 1); 278 279 v &= ~(VIA_RPMODE_STEREO | VIA_RPMODE_16BIT); 280 if (format & AFMT_STEREO) 281 v |= VIA_RPMODE_STEREO; 282 if (format & AFMT_S16_LE) 283 v |= VIA_RPMODE_16BIT; 284 via_wr(via, r, v, 1); 285 286 return 0; 287 } 288 289 static int 290 viachan_setspeed(kobj_t obj, void *data, u_int32_t speed) 291 { 292 struct via_chinfo *ch = data; 293 struct via_info *via = ch->parent; 294 int reg; 295 296 /* 297 * Basic AC'97 defines a 48 kHz sample rate only. For other rates, 298 * upsampling is required. 299 * 300 * The VT82C686A does not perform upsampling, and neither do we. 301 * If the codec supports variable-rate audio (i.e. does the upsampling 302 * itself), then negotiate the rate with the codec. Otherwise, 303 * return 48 kHz cuz that's all you got. 304 */ 305 if (via->codec_caps & AC97_EXTCAP_VRA) { 306 reg = (ch->dir == PCMDIR_PLAY)? AC97_REGEXT_FDACRATE : AC97_REGEXT_LADCRATE; 307 return ac97_setrate(via->codec, reg, speed); 308 } else 309 return 48000; 310 } 311 312 static int 313 viachan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize) 314 { 315 struct via_chinfo *ch = data; 316 317 ch->blksz = blocksize; 318 sndbuf_resize(ch->buffer, SEGS_PER_CHAN, ch->blksz); 319 320 return ch->blksz; 321 } 322 323 static int 324 viachan_trigger(kobj_t obj, void *data, int go) 325 { 326 struct via_chinfo *ch = data; 327 struct via_info *via = ch->parent; 328 struct via_dma_op *ado = ch->sgd_table; 329 330 switch(go) { 331 case PCMTRIG_START: 332 via_buildsgdt(ch); 333 via_wr(via, ch->rbase + VIA_RP_DMAOPS_BASE, vtophys(ado), 4); 334 via_wr(via, ch->rbase + VIA_RP_CONTROL, VIA_RPCTRL_START, 1); 335 break; 336 case PCMTRIG_STOP: 337 case PCMTRIG_ABORT: 338 via_wr(via, ch->rbase + VIA_RP_CONTROL, 339 VIA_RPCTRL_TERMINATE, 1); 340 break; 341 } 342 return 0; 343 } 344 345 static int 346 viachan_getptr(kobj_t obj, void *data) 347 { 348 struct via_chinfo *ch = data; 349 struct via_info *via = ch->parent; 350 struct via_dma_op *ado; 351 int ptr, base, base1, len, seg; 352 353 ado = ch->sgd_table; 354 base1 = via_rd(via, ch->rbase + VIA_RP_DMAOPS_BASE, 4); 355 len = via_rd(via, ch->rbase + VIA_RP_DMAOPS_COUNT, 4); 356 base = via_rd(via, ch->rbase + VIA_RP_DMAOPS_BASE, 4); 357 if (base != base1) /* Avoid race hazard */ 358 len = via_rd(via, ch->rbase + VIA_RP_DMAOPS_COUNT, 4); 359 360 DEB(printf("viachan_getptr: len / base = %x / %x\n", len, base)); 361 362 /* Base points to SGD segment to do, one past current */ 363 364 /* Determine how many segments have been done */ 365 seg = (base - vtophys(ado)) / sizeof(struct via_dma_op); 366 if (seg == 0) 367 seg = SEGS_PER_CHAN; 368 369 /* Now work out offset: seg less count */ 370 ptr = (seg * sndbuf_getsize(ch->buffer) / SEGS_PER_CHAN) - len; 371 if (ch->dir == PCMDIR_REC) { 372 /* DMA appears to operate on memory 'lines' of 32 bytes */ 373 /* so don't return any part line - it isn't in RAM yet */ 374 ptr = ptr & ~0x1f; 375 } 376 377 DEB(printf("return ptr=%d\n", ptr)); 378 return ptr; 379 } 380 381 static struct pcmchan_caps * 382 viachan_getcaps(kobj_t obj, void *data) 383 { 384 struct via_chinfo *ch = data; 385 struct via_info *via = ch->parent; 386 387 return (via->codec_caps & AC97_EXTCAP_VRA)? &via_vracaps : &via_caps; 388 } 389 390 /* ------------------------------------------------------------------------- */ 391 392 static kobj_method_t viachan_methods[] = { 393 KOBJMETHOD(channel_init, viachan_init), 394 KOBJMETHOD(channel_setformat, viachan_setformat), 395 KOBJMETHOD(channel_setspeed, viachan_setspeed), 396 KOBJMETHOD(channel_setblocksize, viachan_setblocksize), 397 KOBJMETHOD(channel_trigger, viachan_trigger), 398 KOBJMETHOD(channel_getptr, viachan_getptr), 399 KOBJMETHOD(channel_getcaps, viachan_getcaps), 400 { 0, 0 } 401 }; 402 CHANNEL_DECLARE(viachan); 403 404 /* ------------------------------------------------------------------------- */ 405 /* VT8233 Specific methods */ 406 407 static void* 408 via8233chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, 409 struct pcm_channel *c, int dir) 410 { 411 struct via_info *via = devinfo; 412 struct via_chinfo *ch = viachan_init(obj, devinfo, b, c, dir); 413 414 /* Fix dxs volume - only need to do once (hopefully) */ 415 if (ch) { 416 via_wr(via, ch->rbase + VIA8233_RP_DXS_LVOL, 0, 1); 417 via_wr(via, ch->rbase + VIA8233_RP_DXS_RVOL, 0, 1); 418 } 419 return ch; 420 } 421 422 static int 423 via8233chan_setspeed(kobj_t obj, void *data, u_int32_t speed) 424 { 425 struct via_chinfo *ch = data; 426 struct via_info *via = ch->parent; 427 428 u_int32_t r = ch->rbase + VIA8233_RP_RATEFMT; 429 u_int32_t v = via_rd(via, r, 4) & ~VIA8233_RATEFMT_48K; 430 431 /* Careful to avoid overflow (divide by 16) */ 432 433 v |= VIA8233_RATEFMT_48K * (speed / 16) / (48000 / 16); 434 via_wr(via, r, v, 4); 435 436 /* Need to do ac97 thing like via686 */ 437 return viachan_setspeed(obj, data, speed); 438 } 439 440 static int 441 via8233chan_setformat(kobj_t obj, void *data, u_int32_t format) 442 { 443 struct via_chinfo *ch = data; 444 struct via_info *via = ch->parent; 445 446 u_int32_t r = ch->rbase + VIA8233_RP_RATEFMT; 447 u_int32_t v = via_rd(via, r, 4); 448 449 v &= ~(VIA8233_RATEFMT_STEREO | VIA8233_RATEFMT_16BIT); 450 if (format & AFMT_STEREO) 451 v |= VIA8233_RATEFMT_STEREO; 452 if (format & AFMT_16BIT) 453 v |= VIA8233_RATEFMT_16BIT; 454 via_wr(via, r, v, 4); 455 456 return 0; 457 } 458 459 static int 460 via8233chan_trigger(kobj_t obj, void* data, int go) 461 { 462 struct via_chinfo *ch = data; 463 struct via_info *via = ch->parent; 464 struct via_dma_op *ado = ch->sgd_table; 465 466 switch(go) { 467 case PCMTRIG_START: 468 via_buildsgdt(ch); 469 via_wr(via, ch->rbase + VIA_RP_DMAOPS_BASE, vtophys(ado), 4); 470 via_wr(via, ch->rbase + VIA_RP_CONTROL, 471 VIA_RPCTRL_START | VIA_RPCTRL_AUTOSTART | 472 VIA_RPCTRL_I_STOP | VIA_RPCTRL_I_EOL | 473 VIA_RPCTRL_I_FLAG, 1); 474 break; 475 case PCMTRIG_STOP: 476 case PCMTRIG_ABORT: 477 via_wr(via, ch->rbase + VIA_RP_CONTROL, 478 VIA_RPCTRL_TERMINATE, 1); 479 break; 480 } 481 return 0; 482 } 483 484 static kobj_method_t via8233chan_methods[] = { 485 KOBJMETHOD(channel_init, via8233chan_init), 486 KOBJMETHOD(channel_setformat, via8233chan_setformat), 487 KOBJMETHOD(channel_setspeed, via8233chan_setspeed), 488 KOBJMETHOD(channel_setblocksize, viachan_setblocksize), 489 KOBJMETHOD(channel_trigger, via8233chan_trigger), 490 KOBJMETHOD(channel_getptr, viachan_getptr), 491 KOBJMETHOD(channel_getcaps, viachan_getcaps), 492 { 0, 0 } 493 }; 494 CHANNEL_DECLARE(via8233chan); 495 496 /* -------------------------------------------------------------------- */ 497 498 static void 499 via_intr(void *p) 500 { 501 struct via_info *via = p; 502 503 if (via_rd(via, VIA_PLAY_BASE + VIA_RP_STAT, 1) & VIA_RPSTAT_INTR) { 504 via_wr(via, VIA_PLAY_BASE + VIA_RP_STAT, VIA_RPSTAT_INTR, 1); 505 chn_intr(via->pch.channel); 506 DEB(printf("intr play\n")); 507 } 508 if (via_rd(via, VIA_REC_BASE + VIA_RP_STAT, 1) & VIA_RPSTAT_INTR) { 509 via_wr(via, VIA_REC_BASE + VIA_RP_STAT, VIA_RPSTAT_INTR, 1); 510 chn_intr(via->rch.channel); 511 DEB(printf("intr rec\n")); 512 } 513 } 514 515 /* 516 * Probe and attach the card 517 */ 518 static int 519 via_probe(device_t dev) 520 { 521 switch(pci_get_devid(dev)) { 522 case VIA686A_PCI_ID: 523 device_set_desc(dev, "VIA VT82C686A"); 524 return 0; 525 case VIA8233_PCI_ID: 526 device_set_desc(dev, "VIA VT8233"); 527 return 0; 528 } 529 return ENXIO; 530 } 531 532 533 static void 534 dma_cb(void *p, bus_dma_segment_t *bds, int a, int b) 535 { 536 } 537 538 static int 539 via_attach(device_t dev) 540 { 541 struct via_info *via = 0; 542 char status[SND_STATUSLEN]; 543 u_int32_t data; 544 545 if ((via = malloc(sizeof *via, M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL) { 546 device_printf(dev, "cannot allocate softc\n"); 547 return ENXIO; 548 } 549 550 /* Get resources */ 551 data = pci_read_config(dev, PCIR_COMMAND, 2); 552 data |= (PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN); 553 pci_write_config(dev, PCIR_COMMAND, data, 2); 554 data = pci_read_config(dev, PCIR_COMMAND, 2); 555 556 pci_write_config(dev, VIA_PCICONF_MISC, 557 VIA_PCICONF_ACLINKENAB | VIA_PCICONF_ACSGD | 558 VIA_PCICONF_ACNOTRST | VIA_PCICONF_ACVSR, 1); 559 560 via->regid = PCIR_MAPS; 561 via->reg = bus_alloc_resource(dev, SYS_RES_IOPORT, &via->regid, 0, ~0, 562 1, RF_ACTIVE); 563 if (!via->reg) { 564 device_printf(dev, "cannot allocate bus resource."); 565 goto bad; 566 } 567 via->st = rman_get_bustag(via->reg); 568 via->sh = rman_get_bushandle(via->reg); 569 570 via->bufsz = pcm_getbuffersize(dev, 4096, VIA_DEFAULT_BUFSZ, 65536); 571 572 via->irqid = 0; 573 via->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &via->irqid, 0, ~0, 1, 574 RF_ACTIVE | RF_SHAREABLE); 575 if (!via->irq || 576 snd_setup_intr(dev, via->irq, 0, via_intr, via, &via->ih)) { 577 device_printf(dev, "unable to map interrupt\n"); 578 goto bad; 579 } 580 581 via_wr(via, VIA_PLAY_BASE + VIA_RP_MODE, 582 VIA_RPMODE_AUTOSTART|VIA_RPMODE_INTR_FLAG|VIA_RPMODE_INTR_EOL, 583 1); 584 via_wr(via, VIA_REC_BASE + VIA_RP_MODE, 585 VIA_RPMODE_AUTOSTART|VIA_RPMODE_INTR_FLAG|VIA_RPMODE_INTR_EOL, 586 1); 587 588 via->codec = AC97_CREATE(dev, via, via_ac97); 589 if (!via->codec) 590 goto bad; 591 592 mixer_init(dev, ac97_getmixerclass(), via->codec); 593 594 via->codec_caps = ac97_getextcaps(via->codec); 595 ac97_setextmode(via->codec, 596 via->codec_caps & (AC97_EXTCAP_VRA | AC97_EXTCAP_VRM)); 597 598 /* DMA tag for buffers */ 599 if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, 600 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 601 /*highaddr*/BUS_SPACE_MAXADDR, 602 /*filter*/NULL, /*filterarg*/NULL, 603 /*maxsize*/via->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff, 604 /*flags*/0, &via->parent_dmat) != 0) { 605 device_printf(dev, "unable to create dma tag\n"); 606 goto bad; 607 } 608 609 /* 610 * DMA tag for SGD table. The 686 uses scatter/gather DMA and 611 * requires a list in memory of work to do. We need only 16 bytes 612 * for this list, and it is wasteful to allocate 16K. 613 */ 614 if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, 615 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 616 /*highaddr*/BUS_SPACE_MAXADDR, 617 /*filter*/NULL, /*filterarg*/NULL, 618 /*maxsize*/NSEGS * sizeof(struct via_dma_op), 619 /*nsegments*/1, /*maxsegz*/0x3ffff, 620 /*flags*/0, &via->sgd_dmat) != 0) { 621 device_printf(dev, "unable to create dma tag\n"); 622 goto bad; 623 } 624 625 if (bus_dmamem_alloc(via->sgd_dmat, (void **)&via->sgd_table, BUS_DMA_NOWAIT, &via->sgd_dmamap) == -1) 626 goto bad; 627 if (bus_dmamap_load(via->sgd_dmat, via->sgd_dmamap, via->sgd_table, NSEGS * sizeof(struct via_dma_op), dma_cb, 0, 0)) 628 goto bad; 629 630 snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld", rman_get_start(via->reg), rman_get_start(via->irq)); 631 632 /* Register */ 633 if (pcm_register(dev, via, 1, 1)) goto bad; 634 635 switch (pci_get_devid(dev)) { 636 case VIA686A_PCI_ID: 637 pcm_addchan(dev, PCMDIR_PLAY, &viachan_class, via); 638 pcm_addchan(dev, PCMDIR_REC, &viachan_class, via); 639 break; 640 case VIA8233_PCI_ID: 641 pcm_addchan(dev, PCMDIR_PLAY, &via8233chan_class, via); 642 pcm_addchan(dev, PCMDIR_REC, &via8233chan_class, via); 643 break; 644 default: 645 goto bad; 646 } 647 648 pcm_setstatus(dev, status); 649 650 return 0; 651 bad: 652 if (via->codec) ac97_destroy(via->codec); 653 if (via->reg) bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); 654 if (via->ih) bus_teardown_intr(dev, via->irq, via->ih); 655 if (via->irq) bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); 656 if (via->parent_dmat) bus_dma_tag_destroy(via->parent_dmat); 657 if (via->sgd_dmamap) bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap); 658 if (via->sgd_dmat) bus_dma_tag_destroy(via->sgd_dmat); 659 if (via) free(via, M_DEVBUF); 660 return ENXIO; 661 } 662 663 static int 664 via_detach(device_t dev) 665 { 666 int r; 667 struct via_info *via = 0; 668 669 r = pcm_unregister(dev); 670 if (r) 671 return r; 672 673 via = pcm_getdevinfo(dev); 674 bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); 675 bus_teardown_intr(dev, via->irq, via->ih); 676 bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); 677 bus_dma_tag_destroy(via->parent_dmat); 678 bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap); 679 bus_dma_tag_destroy(via->sgd_dmat); 680 free(via, M_DEVBUF); 681 return 0; 682 } 683 684 685 static device_method_t via_methods[] = { 686 DEVMETHOD(device_probe, via_probe), 687 DEVMETHOD(device_attach, via_attach), 688 DEVMETHOD(device_detach, via_detach), 689 { 0, 0} 690 }; 691 692 static driver_t via_driver = { 693 "pcm", 694 via_methods, 695 PCM_SOFTC_SIZE, 696 }; 697 698 DRIVER_MODULE(snd_via82c686, pci, via_driver, pcm_devclass, 0, 0); 699 MODULE_DEPEND(snd_via82c686, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER); 700 MODULE_VERSION(snd_via82c686, 1); 701