ad1816.c revision 65340
1/* 2 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk> 3 * Copyright Luigi Rizzo, 1997,1998 4 * Copyright by Hannu Savolainen 1994, 1995 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD: head/sys/dev/sound/isa/ad1816.c 65340 2000-09-01 20:09:24Z cg $ 29 */ 30 31#include <dev/sound/pcm/sound.h> 32#include <dev/sound/isa/ad1816.h> 33 34struct ad1816_info; 35 36struct ad1816_chinfo { 37 struct ad1816_info *parent; 38 pcm_channel *channel; 39 snd_dbuf *buffer; 40 int dir; 41}; 42 43struct ad1816_info { 44 struct resource *io_base; /* primary I/O address for the board */ 45 int io_rid; 46 struct resource *irq; 47 int irq_rid; 48 struct resource *drq1; /* play */ 49 int drq1_rid; 50 struct resource *drq2; /* rec */ 51 int drq2_rid; 52 bus_dma_tag_t parent_dmat; 53 54 struct ad1816_chinfo pch, rch; 55}; 56 57static driver_intr_t ad1816_intr; 58static int ad1816_probe(device_t dev); 59static int ad1816_attach(device_t dev); 60 61/* IO primitives */ 62static int ad1816_wait_init(struct ad1816_info *ad1816, int x); 63static u_short ad1816_read(struct ad1816_info *ad1816, u_int reg); 64static void ad1816_write(struct ad1816_info *ad1816, u_int reg, u_short data); 65 66static int ad1816mix_init(snd_mixer *m); 67static int ad1816mix_set(snd_mixer *m, unsigned dev, unsigned left, unsigned right); 68static int ad1816mix_setrecsrc(snd_mixer *m, u_int32_t src); 69static snd_mixer ad1816_mixer = { 70 "ad1816 mixer", 71 ad1816mix_init, 72 NULL, 73 ad1816mix_set, 74 ad1816mix_setrecsrc, 75}; 76 77static devclass_t pcm_devclass; 78 79/* channel interface */ 80static void *ad1816chan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir); 81static int ad1816chan_setdir(void *data, int dir); 82static int ad1816chan_setformat(void *data, u_int32_t format); 83static int ad1816chan_setspeed(void *data, u_int32_t speed); 84static int ad1816chan_setblocksize(void *data, u_int32_t blocksize); 85static int ad1816chan_trigger(void *data, int go); 86static int ad1816chan_getptr(void *data); 87static pcmchan_caps *ad1816chan_getcaps(void *data); 88 89static u_int32_t ad1816_fmt[] = { 90 AFMT_U8, 91 AFMT_STEREO | AFMT_U8, 92 AFMT_S16_LE, 93 AFMT_STEREO | AFMT_S16_LE, 94 AFMT_MU_LAW, 95 AFMT_STEREO | AFMT_MU_LAW, 96 AFMT_A_LAW, 97 AFMT_STEREO | AFMT_A_LAW, 98 0 99}; 100 101static pcmchan_caps ad1816_caps = {4000, 55200, ad1816_fmt, 0}; 102 103static pcm_channel ad1816_chantemplate = { 104 ad1816chan_init, 105 ad1816chan_setdir, 106 ad1816chan_setformat, 107 ad1816chan_setspeed, 108 ad1816chan_setblocksize, 109 ad1816chan_trigger, 110 ad1816chan_getptr, 111 ad1816chan_getcaps, 112 NULL, /* free */ 113 NULL, /* nop1 */ 114 NULL, /* nop2 */ 115 NULL, /* nop3 */ 116 NULL, /* nop4 */ 117 NULL, /* nop5 */ 118 NULL, /* nop6 */ 119 NULL, /* nop7 */ 120}; 121 122#define AD1816_MUTE 31 /* value for mute */ 123 124static int 125port_rd(struct resource *port, int off) 126{ 127 if (port) 128 return bus_space_read_1(rman_get_bustag(port), 129 rman_get_bushandle(port), 130 off); 131 else 132 return -1; 133} 134 135static void 136port_wr(struct resource *port, int off, u_int8_t data) 137{ 138 if (port) 139 return bus_space_write_1(rman_get_bustag(port), 140 rman_get_bushandle(port), 141 off, data); 142} 143 144static int 145io_rd(struct ad1816_info *ad1816, int reg) 146{ 147 return port_rd(ad1816->io_base, reg); 148} 149 150static void 151io_wr(struct ad1816_info *ad1816, int reg, u_int8_t data) 152{ 153 return port_wr(ad1816->io_base, reg, data); 154} 155 156static void 157ad1816_intr(void *arg) 158{ 159 struct ad1816_info *ad1816 = (struct ad1816_info *)arg; 160 unsigned char c, served = 0; 161 162 /* get interupt status */ 163 c = io_rd(ad1816, AD1816_INT); 164 165 /* check for stray interupts */ 166 if (c & ~(AD1816_INTRCI | AD1816_INTRPI)) { 167 printf("pcm: stray int (%x)\n", c); 168 c &= AD1816_INTRCI | AD1816_INTRPI; 169 } 170 /* check for capture interupt */ 171 if (ad1816->rch.buffer->dl && (c & AD1816_INTRCI)) { 172 chn_intr(ad1816->rch.channel); 173 served |= AD1816_INTRCI; /* cp served */ 174 } 175 /* check for playback interupt */ 176 if (ad1816->pch.buffer->dl && (c & AD1816_INTRPI)) { 177 chn_intr(ad1816->pch.channel); 178 served |= AD1816_INTRPI; /* pb served */ 179 } 180 if (served == 0) { 181 /* this probably means this is not a (working) ad1816 chip, */ 182 /* or an error in dma handling */ 183 printf("pcm: int without reason (%x)\n", c); 184 c = 0; 185 } else c &= ~served; 186 io_wr(ad1816, AD1816_INT, c); 187 c = io_rd(ad1816, AD1816_INT); 188 if (c != 0) printf("pcm: int clear failed (%x)\n", c); 189} 190 191static int 192ad1816_wait_init(struct ad1816_info *ad1816, int x) 193{ 194 int n = 0; /* to shut up the compiler... */ 195 196 for (; x--;) 197 if ((n = (io_rd(ad1816, AD1816_ALE) & AD1816_BUSY)) == 0) DELAY(10); 198 else return n; 199 printf("ad1816_wait_init failed 0x%02x.\n", n); 200 return -1; 201} 202 203static unsigned short 204ad1816_read(struct ad1816_info *ad1816, unsigned int reg) 205{ 206 int flags; 207 u_short x = 0; 208 209 /* we don't want to be blocked here */ 210 flags = spltty(); 211 if (ad1816_wait_init(ad1816, 100) == -1) return 0; 212 io_wr(ad1816, AD1816_ALE, 0); 213 io_wr(ad1816, AD1816_ALE, (reg & AD1816_ALEMASK)); 214 if (ad1816_wait_init(ad1816, 100) == -1) return 0; 215 x = (io_rd(ad1816, AD1816_HIGH) << 8) | io_rd(ad1816, AD1816_LOW); 216 splx(flags); 217 return x; 218} 219 220static void 221ad1816_write(struct ad1816_info *ad1816, unsigned int reg, unsigned short data) 222{ 223 int flags; 224 225 flags = spltty(); 226 if (ad1816_wait_init(ad1816, 100) == -1) return; 227 io_wr(ad1816, AD1816_ALE, (reg & AD1816_ALEMASK)); 228 io_wr(ad1816, AD1816_LOW, (data & 0x000000ff)); 229 io_wr(ad1816, AD1816_HIGH, (data & 0x0000ff00) >> 8); 230 splx(flags); 231} 232 233static int 234ad1816mix_init(snd_mixer *m) 235{ 236 mix_setdevs(m, AD1816_MIXER_DEVICES); 237 mix_setrecdevs(m, AD1816_REC_DEVICES); 238 return 0; 239} 240 241static int 242ad1816mix_set(snd_mixer *m, unsigned dev, unsigned left, unsigned right) 243{ 244 struct ad1816_info *ad1816 = mix_getdevinfo(m); 245 u_short reg = 0; 246 247 /* Scale volumes */ 248 left = AD1816_MUTE - (AD1816_MUTE * left) / 100; 249 right = AD1816_MUTE - (AD1816_MUTE * right) / 100; 250 251 reg = (left << 8) | right; 252 253 /* do channel selective muting if volume is zero */ 254 if (left == AD1816_MUTE) reg |= 0x8000; 255 if (right == AD1816_MUTE) reg |= 0x0080; 256 257 switch (dev) { 258 case SOUND_MIXER_VOLUME: /* Register 14 master volume */ 259 ad1816_write(ad1816, 14, reg); 260 break; 261 262 case SOUND_MIXER_CD: /* Register 15 cd */ 263 case SOUND_MIXER_LINE1: 264 ad1816_write(ad1816, 15, reg); 265 break; 266 267 case SOUND_MIXER_SYNTH: /* Register 16 synth */ 268 ad1816_write(ad1816, 16, reg); 269 break; 270 271 case SOUND_MIXER_PCM: /* Register 4 pcm */ 272 ad1816_write(ad1816, 4, reg); 273 break; 274 275 case SOUND_MIXER_LINE: 276 case SOUND_MIXER_LINE3: /* Register 18 line in */ 277 ad1816_write(ad1816, 18, reg); 278 break; 279 280 case SOUND_MIXER_MIC: /* Register 19 mic volume */ 281 ad1816_write(ad1816, 19, reg & ~0xff); /* mic is mono */ 282 break; 283 284 case SOUND_MIXER_IGAIN: 285 /* and now to something completely different ... */ 286 ad1816_write(ad1816, 20, ((ad1816_read(ad1816, 20) & ~0x0f0f) 287 | (((AD1816_MUTE - left) / 2) << 8) /* four bits of adc gain */ 288 | ((AD1816_MUTE - right) / 2))); 289 break; 290 291 default: 292 printf("ad1816_mixer_set(): unknown device.\n"); 293 break; 294 } 295 296 left = ((AD1816_MUTE - left) * 100) / AD1816_MUTE; 297 right = ((AD1816_MUTE - right) * 100) / AD1816_MUTE; 298 299 return left | (right << 8); 300} 301 302static int 303ad1816mix_setrecsrc(snd_mixer *m, u_int32_t src) 304{ 305 struct ad1816_info *ad1816 = mix_getdevinfo(m); 306 int dev; 307 308 switch (src) { 309 case SOUND_MASK_LINE: 310 case SOUND_MASK_LINE3: 311 dev = 0x00; 312 break; 313 314 case SOUND_MASK_CD: 315 case SOUND_MASK_LINE1: 316 dev = 0x20; 317 break; 318 319 case SOUND_MASK_MIC: 320 default: 321 dev = 0x50; 322 src = SOUND_MASK_MIC; 323 } 324 325 dev |= dev << 8; 326 ad1816_write(ad1816, 20, (ad1816_read(ad1816, 20) & ~0x7070) | dev); 327 return src; 328} 329 330/* channel interface */ 331static void * 332ad1816chan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir) 333{ 334 struct ad1816_info *ad1816 = devinfo; 335 struct ad1816_chinfo *ch = (dir == PCMDIR_PLAY)? &ad1816->pch : &ad1816->rch; 336 337 ch->parent = ad1816; 338 ch->channel = c; 339 ch->buffer = b; 340 ch->buffer->bufsize = DSP_BUFFSIZE; 341 if (chn_allocbuf(ch->buffer, ad1816->parent_dmat) == -1) return NULL; 342 return ch; 343} 344 345static int 346ad1816chan_setdir(void *data, int dir) 347{ 348 struct ad1816_chinfo *ch = data; 349 struct ad1816_info *ad1816 = ch->parent; 350 351 ch->buffer->chan = rman_get_start((dir == PCMDIR_PLAY)? 352 ad1816->drq1 : ad1816->drq2); 353 ch->dir = dir; 354 return 0; 355} 356 357static int 358ad1816chan_setformat(void *data, u_int32_t format) 359{ 360 struct ad1816_chinfo *ch = data; 361 struct ad1816_info *ad1816 = ch->parent; 362 363 int fmt = AD1816_U8, reg; 364 if (ch->dir == PCMDIR_PLAY) { 365 reg = AD1816_PLAY; 366 ad1816_write(ad1816, 8, 0x0000); /* reset base and current counter */ 367 ad1816_write(ad1816, 9, 0x0000); /* for playback and capture */ 368 } else { 369 reg = AD1816_CAPT; 370 ad1816_write(ad1816, 10, 0x0000); 371 ad1816_write(ad1816, 11, 0x0000); 372 } 373 switch (format & ~AFMT_STEREO) { 374 case AFMT_A_LAW: 375 fmt = AD1816_ALAW; 376 break; 377 378 case AFMT_MU_LAW: 379 fmt = AD1816_MULAW; 380 break; 381 382 case AFMT_S16_LE: 383 fmt = AD1816_S16LE; 384 break; 385 386 case AFMT_S16_BE: 387 fmt = AD1816_S16BE; 388 break; 389 390 case AFMT_U8: 391 fmt = AD1816_U8; 392 break; 393 } 394 if (format & AFMT_STEREO) fmt |= AD1816_STEREO; 395 io_wr(ad1816, reg, fmt); 396 return format; 397} 398 399static int 400ad1816chan_setspeed(void *data, u_int32_t speed) 401{ 402 struct ad1816_chinfo *ch = data; 403 struct ad1816_info *ad1816 = ch->parent; 404 405 RANGE(speed, 4000, 55200); 406 ad1816_write(ad1816, (ch->dir == PCMDIR_PLAY)? 2 : 3, speed); 407 return speed; 408} 409 410static int 411ad1816chan_setblocksize(void *data, u_int32_t blocksize) 412{ 413 return blocksize; 414} 415 416static int 417ad1816chan_trigger(void *data, int go) 418{ 419 struct ad1816_chinfo *ch = data; 420 struct ad1816_info *ad1816 = ch->parent; 421 int wr, reg; 422 423 if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD) 424 return 0; 425 426 buf_isadma(ch->buffer, go); 427 wr = (ch->dir == PCMDIR_PLAY); 428 reg = wr? AD1816_PLAY : AD1816_CAPT; 429 switch (go) { 430 case PCMTRIG_START: 431 /* start only if not already running */ 432 if (!(io_rd(ad1816, reg) & AD1816_ENABLE)) { 433 int cnt = ((ch->buffer->dl) >> 2) - 1; 434 ad1816_write(ad1816, wr? 8 : 10, cnt); /* count */ 435 ad1816_write(ad1816, wr? 9 : 11, 0); /* reset cur cnt */ 436 ad1816_write(ad1816, 1, ad1816_read(ad1816, 1) | 437 (wr? 0x8000 : 0x4000)); /* enable int */ 438 /* enable playback */ 439 io_wr(ad1816, reg, io_rd(ad1816, reg) | AD1816_ENABLE); 440 if (!(io_rd(ad1816, reg) & AD1816_ENABLE)) 441 printf("ad1816: failed to start %s DMA!\n", 442 wr? "play" : "rec"); 443 } 444 break; 445 446 case PCMTRIG_STOP: 447 case PCMTRIG_ABORT: /* XXX check this... */ 448 /* we don't test here if it is running... */ 449 if (wr) { 450 ad1816_write(ad1816, 1, ad1816_read(ad1816, 1) & 451 ~(wr? 0x8000 : 0x4000)); 452 /* disable int */ 453 io_wr(ad1816, reg, io_rd(ad1816, reg) & ~AD1816_ENABLE); 454 /* disable playback */ 455 if (io_rd(ad1816, reg) & AD1816_ENABLE) 456 printf("ad1816: failed to stop %s DMA!\n", 457 wr? "play" : "rec"); 458 ad1816_write(ad1816, wr? 8 : 10, 0); /* reset base cnt */ 459 ad1816_write(ad1816, wr? 9 : 11, 0); /* reset cur cnt */ 460 } 461 break; 462 } 463 return 0; 464} 465 466static int 467ad1816chan_getptr(void *data) 468{ 469 struct ad1816_chinfo *ch = data; 470 return buf_isadmaptr(ch->buffer); 471} 472 473static pcmchan_caps * 474ad1816chan_getcaps(void *data) 475{ 476 return &ad1816_caps; 477} 478 479static void 480ad1816_release_resources(struct ad1816_info *ad1816, device_t dev) 481{ 482 if (ad1816->irq) { 483 bus_release_resource(dev, SYS_RES_IRQ, ad1816->irq_rid, 484 ad1816->irq); 485 ad1816->irq = 0; 486 } 487 if (ad1816->drq1) { 488 bus_release_resource(dev, SYS_RES_DRQ, ad1816->drq1_rid, 489 ad1816->drq1); 490 ad1816->drq1 = 0; 491 } 492 if (ad1816->drq2) { 493 bus_release_resource(dev, SYS_RES_DRQ, ad1816->drq2_rid, 494 ad1816->drq2); 495 ad1816->drq2 = 0; 496 } 497 if (ad1816->io_base) { 498 bus_release_resource(dev, SYS_RES_IOPORT, ad1816->io_rid, 499 ad1816->io_base); 500 ad1816->io_base = 0; 501 } 502 free(ad1816, M_DEVBUF); 503} 504 505static int 506ad1816_alloc_resources(struct ad1816_info *ad1816, device_t dev) 507{ 508 int ok = 1, pdma, rdma; 509 if (!ad1816->io_base) 510 ad1816->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT, &ad1816->io_rid, 511 0, ~0, 1, RF_ACTIVE); 512 if (!ad1816->irq) 513 ad1816->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &ad1816->irq_rid, 514 0, ~0, 1, RF_ACTIVE); 515 if (!ad1816->drq1) 516 ad1816->drq1 = bus_alloc_resource(dev, SYS_RES_DRQ, &ad1816->drq1_rid, 517 0, ~0, 1, RF_ACTIVE); 518 if (!ad1816->drq2) 519 ad1816->drq2 = bus_alloc_resource(dev, SYS_RES_DRQ, &ad1816->drq2_rid, 520 0, ~0, 1, RF_ACTIVE); 521 522 if (!ad1816->io_base || !ad1816->drq1 || !ad1816->irq) ok = 0; 523 524 if (ok) { 525 pdma = rman_get_start(ad1816->drq1); 526 isa_dma_acquire(pdma); 527 isa_dmainit(pdma, DSP_BUFFSIZE); 528 if (ad1816->drq2) { 529 rdma = rman_get_start(ad1816->drq2); 530 isa_dma_acquire(rdma); 531 isa_dmainit(rdma, DSP_BUFFSIZE); 532 } else rdma = pdma; 533 if (pdma == rdma) 534 pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX); 535 } 536 return ok; 537} 538 539static int 540ad1816_init(struct ad1816_info *ad1816, device_t dev) 541{ 542 ad1816_write(ad1816, 1, 0x2); /* disable interrupts */ 543 ad1816_write(ad1816, 32, 0x90F0); /* SoundSys Mode, split fmt */ 544 545 ad1816_write(ad1816, 5, 0x8080); /* FM volume mute */ 546 ad1816_write(ad1816, 6, 0x8080); /* I2S1 volume mute */ 547 ad1816_write(ad1816, 7, 0x8080); /* I2S0 volume mute */ 548 ad1816_write(ad1816, 17, 0x8888); /* VID Volume mute */ 549 ad1816_write(ad1816, 20, 0x5050); /* recsrc mic, agc off */ 550 /* adc gain is set to 0 */ 551 552 return 0; 553} 554 555static int 556ad1816_probe(device_t dev) 557{ 558 char *s = NULL; 559 u_int32_t logical_id = isa_get_logicalid(dev); 560 561 switch (logical_id) { 562 case 0x80719304: /* ADS7180 */ 563 s = "AD1816"; 564 break; 565 } 566 567 if (s) { 568 device_set_desc(dev, s); 569 return 0; 570 } 571 return ENXIO; 572} 573 574static int 575ad1816_attach(device_t dev) 576{ 577 struct ad1816_info *ad1816; 578 void *ih; 579 char status[SND_STATUSLEN]; 580 581 ad1816 = (struct ad1816_info *)malloc(sizeof *ad1816, M_DEVBUF, M_NOWAIT); 582 if (!ad1816) return ENXIO; 583 bzero(ad1816, sizeof *ad1816); 584 585 ad1816->io_rid = 2; 586 ad1816->irq_rid = 0; 587 ad1816->drq1_rid = 0; 588 ad1816->drq2_rid = 1; 589 590 if (!ad1816_alloc_resources(ad1816, dev)) goto no; 591 ad1816_init(ad1816, dev); 592 mixer_init(dev, &ad1816_mixer, ad1816); 593 bus_setup_intr(dev, ad1816->irq, INTR_TYPE_TTY, ad1816_intr, ad1816, &ih); 594 if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, 595 /*lowaddr*/BUS_SPACE_MAXADDR_24BIT, 596 /*highaddr*/BUS_SPACE_MAXADDR, 597 /*filter*/NULL, /*filterarg*/NULL, 598 /*maxsize*/DSP_BUFFSIZE, /*nsegments*/1, 599 /*maxsegz*/0x3ffff, 600 /*flags*/0, &ad1816->parent_dmat) != 0) { 601 device_printf(dev, "unable to create dma tag\n"); 602 goto no; 603 } 604 snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %ld", 605 rman_get_start(ad1816->io_base), 606 rman_get_start(ad1816->irq), 607 rman_get_start(ad1816->drq1)); 608 if (ad1816->drq2) snprintf(status + strlen(status), 609 SND_STATUSLEN - strlen(status), ":%ld", 610 rman_get_start(ad1816->drq2)); 611 612 if (pcm_register(dev, ad1816, 1, 1)) goto no; 613 pcm_addchan(dev, PCMDIR_REC, &ad1816_chantemplate, ad1816); 614 pcm_addchan(dev, PCMDIR_PLAY, &ad1816_chantemplate, ad1816); 615 pcm_setstatus(dev, status); 616 617 return 0; 618no: 619 ad1816_release_resources(ad1816, dev); 620 return ENXIO; 621 622} 623 624static device_method_t ad1816_methods[] = { 625 /* Device interface */ 626 DEVMETHOD(device_probe, ad1816_probe), 627 DEVMETHOD(device_attach, ad1816_attach), 628 629 { 0, 0 } 630}; 631 632static driver_t ad1816_driver = { 633 "pcm", 634 ad1816_methods, 635 sizeof(snddev_info), 636}; 637 638DRIVER_MODULE(snd_ad1816, isa, ad1816_driver, pcm_devclass, 0, 0); 639MODULE_DEPEND(snd_ad1816, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER); 640MODULE_VERSION(snd_ad1816, 1); 641 642 643