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 #include <dev/sound/pcm/sound.h> 28 #include <dev/sound/pcm/ac97.h> 29 30 #include <pci/pcireg.h> 31 #include <pci/pcivar.h> 32 #include <sys/sysctl.h> 33 34 #include <dev/sound/pci/via82c686.h> 35 36 SND_DECLARE_FILE("$FreeBSD: src/sys/dev/sound/pci/via82c686.c,v 1.4.2.10 2003/05/11 01:45:53 orion Exp $"); 37 38 #define VIA_PCI_ID 0x30581106 39 #define NSEGS 4 /* Number of segments in SGD table */ 40 41 #define SEGS_PER_CHAN (NSEGS/2) 42 43 #define TIMEOUT 50 44 #define VIA_DEFAULT_BUFSZ 0x1000 45 46 #undef DEB 47 #define DEB(x) 48 49 /* we rely on this struct being packed to 64 bits */ 50 struct via_dma_op { 51 u_int32_t ptr; 52 u_int32_t flags; 53 #define VIA_DMAOP_EOL 0x80000000 54 #define VIA_DMAOP_FLAG 0x40000000 55 #define VIA_DMAOP_STOP 0x20000000 56 #define VIA_DMAOP_COUNT(x) ((x)&0x00FFFFFF) 57 }; 58 59 struct via_info; 60 61 struct via_chinfo { 62 struct via_info *parent; 63 struct pcm_channel *channel; 64 struct snd_dbuf *buffer; 65 struct via_dma_op *sgd_table; 66 int dir, blksz; 67 int base, count, mode, ctrl; 68 }; 69 70 struct via_info { 71 bus_space_tag_t st; 72 bus_space_handle_t sh; 73 bus_dma_tag_t parent_dmat; 74 bus_dma_tag_t sgd_dmat; 75 bus_dmamap_t sgd_dmamap; 76 77 struct resource *reg, *irq; 78 int regid, irqid; 79 void *ih; 80 struct ac97_info *codec; 81 82 unsigned int bufsz; 83 84 struct via_chinfo pch, rch; 85 struct via_dma_op *sgd_table; 86 u_int16_t codec_caps; 87 }; 88 89 static u_int32_t via_fmt[] = { 90 AFMT_U8, 91 AFMT_STEREO | AFMT_U8, 92 AFMT_S16_LE, 93 AFMT_STEREO | AFMT_S16_LE, 94 0 95 }; 96 static struct pcmchan_caps via_vracaps = {4000, 48000, via_fmt, 0}; 97 static struct pcmchan_caps via_caps = {48000, 48000, via_fmt, 0}; 98 99 static u_int32_t 100 via_rd(struct via_info *via, int regno, int size) 101 { 102 103 switch (size) { 104 case 1: 105 return bus_space_read_1(via->st, via->sh, regno); 106 case 2: 107 return bus_space_read_2(via->st, via->sh, regno); 108 case 4: 109 return bus_space_read_4(via->st, via->sh, regno); 110 default: 111 return 0xFFFFFFFF; 112 } 113 } 114 115 116 static void 117 via_wr(struct via_info *via, int regno, u_int32_t data, int size) 118 { 119 120 switch (size) { 121 case 1: 122 bus_space_write_1(via->st, via->sh, regno, data); 123 break; 124 case 2: 125 bus_space_write_2(via->st, via->sh, regno, data); 126 break; 127 case 4: 128 bus_space_write_4(via->st, via->sh, regno, data); 129 break; 130 } 131 } 132 133 /* -------------------------------------------------------------------- */ 134 /* Codec interface */ 135 136 static int 137 via_waitready_codec(struct via_info *via) 138 { 139 int i; 140 141 /* poll until codec not busy */ 142 for (i = 0; (i < TIMEOUT) && 143 (via_rd(via, VIA_CODEC_CTL, 4) & VIA_CODEC_BUSY); i++) 144 DELAY(1); 145 if (i >= TIMEOUT) { 146 printf("via: codec busy\n"); 147 return 1; 148 } 149 150 return 0; 151 } 152 153 154 static int 155 via_waitvalid_codec(struct via_info *via) 156 { 157 int i; 158 159 /* poll until codec valid */ 160 for (i = 0; (i < TIMEOUT) && 161 !(via_rd(via, VIA_CODEC_CTL, 4) & VIA_CODEC_PRIVALID); i++) 162 DELAY(1); 163 if (i >= TIMEOUT) { 164 printf("via: codec invalid\n"); 165 return 1; 166 } 167 168 return 0; 169 } 170 171 172 static int 173 via_write_codec(kobj_t obj, void *addr, int reg, u_int32_t val) 174 { 175 struct via_info *via = addr; 176 177 if (via_waitready_codec(via)) return -1; 178 179 via_wr(via, VIA_CODEC_CTL, VIA_CODEC_PRIVALID | VIA_CODEC_INDEX(reg) | val, 4); 180 181 return 0; 182 } 183 184 185 static int 186 via_read_codec(kobj_t obj, void *addr, int reg) 187 { 188 struct via_info *via = addr; 189 190 if (via_waitready_codec(via)) 191 return -1; 192 193 via_wr(via, VIA_CODEC_CTL, VIA_CODEC_PRIVALID | VIA_CODEC_READ | VIA_CODEC_INDEX(reg),4); 194 195 if (via_waitready_codec(via)) 196 return -1; 197 198 if (via_waitvalid_codec(via)) 199 return -1; 200 201 return via_rd(via, VIA_CODEC_CTL, 2); 202 } 203 204 static kobj_method_t via_ac97_methods[] = { 205 KOBJMETHOD(ac97_read, via_read_codec), 206 KOBJMETHOD(ac97_write, via_write_codec), 207 { 0, 0 } 208 }; 209 AC97_DECLARE(via_ac97); 210 211 /* -------------------------------------------------------------------- */ 212 213 static int 214 via_buildsgdt(struct via_chinfo *ch) 215 { 216 u_int32_t phys_addr, flag; 217 int i, segs, seg_size; 218 219 /* 220 * Build the scatter/gather DMA (SGD) table. 221 * There are four slots in the table: two for play, two for record. 222 * This creates two half-buffers, one of which is playing; the other 223 * is feeding. 224 */ 225 seg_size = ch->blksz; 226 segs = sndbuf_getsize(ch->buffer) / seg_size; 227 phys_addr = vtophys(sndbuf_getbuf(ch->buffer)); 228 229 for (i = 0; i < segs; i++) { 230 flag = (i == segs - 1)? VIA_DMAOP_EOL : VIA_DMAOP_FLAG; 231 ch->sgd_table[i].ptr = phys_addr + (i * seg_size); 232 ch->sgd_table[i].flags = flag | seg_size; 233 } 234 235 return 0; 236 } 237 238 /* channel interface */ 239 static void * 240 viachan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir) 241 { 242 struct via_info *via = devinfo; 243 struct via_chinfo *ch = (dir == PCMDIR_PLAY)? &via->pch : &via->rch; 244 245 ch->parent = via; 246 ch->channel = c; 247 ch->buffer = b; 248 ch->dir = dir; 249 ch->sgd_table = &via->sgd_table[(dir == PCMDIR_PLAY)? 0 : SEGS_PER_CHAN]; 250 if (ch->dir == PCMDIR_PLAY) { 251 ch->base = VIA_PLAY_DMAOPS_BASE; 252 ch->count = VIA_PLAY_DMAOPS_COUNT; 253 ch->ctrl = VIA_PLAY_CONTROL; 254 ch->mode = VIA_PLAY_MODE; 255 } else { 256 ch->base = VIA_RECORD_DMAOPS_BASE; 257 ch->count = VIA_RECORD_DMAOPS_COUNT; 258 ch->ctrl = VIA_RECORD_CONTROL; 259 ch->mode = VIA_RECORD_MODE; 260 } 261 262 if (sndbuf_alloc(ch->buffer, via->parent_dmat, via->bufsz) == -1) 263 return NULL; 264 return ch; 265 } 266 267 static int 268 viachan_setformat(kobj_t obj, void *data, u_int32_t format) 269 { 270 struct via_chinfo *ch = data; 271 struct via_info *via = ch->parent; 272 int mode, mode_set; 273 274 mode_set = 0; 275 if (format & AFMT_STEREO) 276 mode_set |= VIA_RPMODE_STEREO; 277 if (format & AFMT_S16_LE) 278 mode_set |= VIA_RPMODE_16BIT; 279 280 DEB(printf("set format: dir = %d, format=%x\n", ch->dir, format)); 281 mode = via_rd(via, ch->mode, 1); 282 mode &= ~(VIA_RPMODE_16BIT | VIA_RPMODE_STEREO); 283 mode |= mode_set; 284 via_wr(via, ch->mode, mode, 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; 329 330 if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD) 331 return 0; 332 333 ado = ch->sgd_table; 334 DEB(printf("ado located at va=%p pa=%x\n", ado, vtophys(ado))); 335 336 if (go == PCMTRIG_START) { 337 via_buildsgdt(ch); 338 via_wr(via, ch->base, vtophys(ado), 4); 339 via_wr(via, ch->ctrl, VIA_RPCTRL_START, 1); 340 } else 341 via_wr(via, ch->ctrl, VIA_RPCTRL_TERMINATE, 1); 342 343 DEB(printf("viachan_trigger: go=%d\n", go)); 344 return 0; 345 } 346 347 static int 348 viachan_getptr(kobj_t obj, void *data) 349 { 350 struct via_chinfo *ch = data; 351 struct via_info *via = ch->parent; 352 struct via_dma_op *ado; 353 int ptr, base, base1, len, seg; 354 355 ado = ch->sgd_table; 356 base1 = via_rd(via, ch->base, 4); 357 len = via_rd(via, ch->count, 4); 358 base = via_rd(via, ch->base, 4); 359 if (base != base1) /* Avoid race hazard */ 360 len = via_rd(via, ch->count, 4); 361 362 DEB(printf("viachan_getptr: len / base = %x / %x\n", len, base)); 363 364 /* Base points to SGD segment to do, one past current */ 365 366 /* Determine how many segments have been done */ 367 seg = (base - vtophys(ado)) / sizeof(struct via_dma_op); 368 if (seg == 0) 369 seg = SEGS_PER_CHAN; 370 371 /* Now work out offset: seg less count */ 372 ptr = (seg * sndbuf_getsize(ch->buffer) / SEGS_PER_CHAN) - len; 373 if (ch->dir == PCMDIR_REC) { 374 /* DMA appears to operate on memory 'lines' of 32 bytes */ 375 /* so don't return any part line - it isn't in RAM yet */ 376 ptr = ptr & ~0x1f; 377 } 378 379 DEB(printf("return ptr=%d\n", ptr)); 380 return ptr; 381 } 382 383 static struct pcmchan_caps * 384 viachan_getcaps(kobj_t obj, void *data) 385 { 386 struct via_chinfo *ch = data; 387 struct via_info *via = ch->parent; 388 389 return (via->codec_caps & AC97_EXTCAP_VRA)? &via_vracaps : &via_caps; 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 /* -------------------------------------------------------------------- */ 405 406 static void 407 via_intr(void *p) 408 { 409 struct via_info *via = p; 410 int st; 411 412 /* DEB(printf("viachan_intr\n")); */ 413 /* Read channel */ 414 st = via_rd(via, VIA_PLAY_STAT, 1); 415 if (st & VIA_RPSTAT_INTR) { 416 via_wr(via, VIA_PLAY_STAT, VIA_RPSTAT_INTR, 1); 417 chn_intr(via->pch.channel); 418 } 419 420 /* Write channel */ 421 st = via_rd(via, VIA_RECORD_STAT, 1); 422 if (st & VIA_RPSTAT_INTR) { 423 via_wr(via, VIA_RECORD_STAT, VIA_RPSTAT_INTR, 1); 424 chn_intr(via->rch.channel); 425 } 426 } 427 428 /* 429 * Probe and attach the card 430 */ 431 static int 432 via_probe(device_t dev) 433 { 434 if (pci_get_devid(dev) == VIA_PCI_ID) { 435 device_set_desc(dev, "VIA VT82C686A"); 436 return 0; 437 } 438 return ENXIO; 439 } 440 441 442 static void 443 dma_cb(void *p, bus_dma_segment_t *bds, int a, int b) 444 { 445 } 446 447 448 static int 449 via_attach(device_t dev) 450 { 451 struct via_info *via = 0; 452 char status[SND_STATUSLEN]; 453 u_int32_t data, cnt; 454 455 if ((via = malloc(sizeof *via, M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL) { 456 device_printf(dev, "cannot allocate softc\n"); 457 return ENXIO; 458 } 459 460 /* Get resources */ 461 data = pci_read_config(dev, PCIR_COMMAND, 2); 462 data |= (PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN); 463 pci_write_config(dev, PCIR_COMMAND, data, 2); 464 data = pci_read_config(dev, PCIR_COMMAND, 2); 465 466 /* Wake up and reset AC97 if necessary */ 467 data = pci_read_config(dev, VIA_AC97STATUS, 1); 468 469 if ((data & VIA_AC97STATUS_RDY) == 0) { 470 /* Cold reset per ac97r2.3 spec (page 95) */ 471 pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Assert low */ 472 DELAY(100); /* Wait T_rst_low */ 473 pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN | VIA_ACLINK_NRST, 1); /* Assert high */ 474 DELAY(5); /* Wait T_rst2clk */ 475 pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Assert low */ 476 } else { 477 /* Warm reset */ 478 pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Force no sync */ 479 DELAY(100); 480 pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN | VIA_ACLINK_SYNC, 1); /* Sync */ 481 DELAY(5); /* Wait T_sync_high */ 482 pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Force no sync */ 483 DELAY(5); /* Wait T_sync2clk */ 484 } 485 486 /* Power everything up */ 487 pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_DESIRED, 1); 488 489 /* Wait for codec to become ready (largest reported delay here 310ms) */ 490 for (cnt = 0; cnt < 2000; cnt++) { 491 data = pci_read_config(dev, VIA_AC97STATUS, 1); 492 if (data & VIA_AC97STATUS_RDY) 493 break; 494 DELAY(5000); 495 } 496 497 via->regid = PCIR_MAPS; 498 via->reg = bus_alloc_resource(dev, SYS_RES_IOPORT, &via->regid, 0, ~0, 1, RF_ACTIVE); 499 if (!via->reg) { 500 device_printf(dev, "cannot allocate bus resource."); 501 goto bad; 502 } 503 via->st = rman_get_bustag(via->reg); 504 via->sh = rman_get_bushandle(via->reg); 505 506 via->bufsz = pcm_getbuffersize(dev, 4096, VIA_DEFAULT_BUFSZ, 65536); 507 508 via->irqid = 0; 509 via->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &via->irqid, 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); 510 if (!via->irq || snd_setup_intr(dev, via->irq, 0, via_intr, via, &via->ih)) { 511 device_printf(dev, "unable to map interrupt\n"); 512 goto bad; 513 } 514 515 via_wr(via, VIA_PLAY_MODE, VIA_RPMODE_AUTOSTART | VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1); 516 via_wr(via, VIA_RECORD_MODE, VIA_RPMODE_AUTOSTART | VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1); 517 518 via->codec = AC97_CREATE(dev, via, via_ac97); 519 if (!via->codec) 520 goto bad; 521 522 if (mixer_init(dev, ac97_getmixerclass(), via->codec)) 523 goto bad; 524 525 via->codec_caps = ac97_getextcaps(via->codec); 526 ac97_setextmode(via->codec, 527 via->codec_caps & (AC97_EXTCAP_VRA | AC97_EXTCAP_VRM)); 528 529 /* DMA tag for buffers */ 530 if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, 531 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 532 /*highaddr*/BUS_SPACE_MAXADDR, 533 /*filter*/NULL, /*filterarg*/NULL, 534 /*maxsize*/via->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff, 535 /*flags*/0, &via->parent_dmat) != 0) { 536 device_printf(dev, "unable to create dma tag\n"); 537 goto bad; 538 } 539 540 /* 541 * DMA tag for SGD table. The 686 uses scatter/gather DMA and 542 * requires a list in memory of work to do. We need only 16 bytes 543 * for this list, and it is wasteful to allocate 16K. 544 */ 545 if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, 546 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 547 /*highaddr*/BUS_SPACE_MAXADDR, 548 /*filter*/NULL, /*filterarg*/NULL, 549 /*maxsize*/NSEGS * sizeof(struct via_dma_op), 550 /*nsegments*/1, /*maxsegz*/0x3ffff, 551 /*flags*/0, &via->sgd_dmat) != 0) { 552 device_printf(dev, "unable to create dma tag\n"); 553 goto bad; 554 } 555 556 if (bus_dmamem_alloc(via->sgd_dmat, (void **)&via->sgd_table, BUS_DMA_NOWAIT, &via->sgd_dmamap) == -1) 557 goto bad; 558 if (bus_dmamap_load(via->sgd_dmat, via->sgd_dmamap, via->sgd_table, NSEGS * sizeof(struct via_dma_op), dma_cb, 0, 0)) 559 goto bad; 560 561 snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld", rman_get_start(via->reg), rman_get_start(via->irq)); 562 563 /* Register */ 564 if (pcm_register(dev, via, 1, 1)) goto bad; 565 pcm_addchan(dev, PCMDIR_PLAY, &viachan_class, via); 566 pcm_addchan(dev, PCMDIR_REC, &viachan_class, via); 567 pcm_setstatus(dev, status); 568 return 0; 569 bad: 570 if (via->codec) ac97_destroy(via->codec); 571 if (via->reg) bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); 572 if (via->ih) bus_teardown_intr(dev, via->irq, via->ih); 573 if (via->irq) bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); 574 if (via->parent_dmat) bus_dma_tag_destroy(via->parent_dmat); 575 if (via->sgd_dmamap) bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap); 576 if (via->sgd_dmat) bus_dma_tag_destroy(via->sgd_dmat); 577 if (via) free(via, M_DEVBUF); 578 return ENXIO; 579 } 580 581 static int 582 via_detach(device_t dev) 583 { 584 int r; 585 struct via_info *via = 0; 586 587 r = pcm_unregister(dev); 588 if (r) 589 return r; 590 591 via = pcm_getdevinfo(dev); 592 bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); 593 bus_teardown_intr(dev, via->irq, via->ih); 594 bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); 595 bus_dma_tag_destroy(via->parent_dmat); 596 bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap); 597 bus_dma_tag_destroy(via->sgd_dmat); 598 free(via, M_DEVBUF); 599 return 0; 600 } 601 602 603 static device_method_t via_methods[] = { 604 DEVMETHOD(device_probe, via_probe), 605 DEVMETHOD(device_attach, via_attach), 606 DEVMETHOD(device_detach, via_detach), 607 { 0, 0} 608 }; 609 610 static driver_t via_driver = { 611 "pcm", 612 via_methods, 613 PCM_SOFTC_SIZE, 614 }; 615 616 DRIVER_MODULE(snd_via82c686, pci, via_driver, pcm_devclass, 0, 0); 617 MODULE_DEPEND(snd_via82c686, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER); 618 MODULE_VERSION(snd_via82c686, 1); 619