ad1816.c revision 75381
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 75381 2001-04-10 13:52:26Z cg $ 29 */ 30 31#include <dev/sound/pcm/sound.h> 32#include <dev/sound/isa/ad1816.h> 33 34#include "mixer_if.h" 35 36struct ad1816_info; 37 38struct ad1816_chinfo { 39 struct ad1816_info *parent; 40 struct pcm_channel *channel; 41 struct snd_dbuf *buffer; 42 int dir, blksz; 43}; 44 45struct ad1816_info { 46 struct resource *io_base; /* primary I/O address for the board */ 47 int io_rid; 48 struct resource *irq; 49 int irq_rid; 50 struct resource *drq1; /* play */ 51 int drq1_rid; 52 struct resource *drq2; /* rec */ 53 int drq2_rid; 54 void *ih; 55 bus_dma_tag_t parent_dmat; 56 void *lock; 57 58 struct ad1816_chinfo pch, rch; 59}; 60 61static driver_intr_t ad1816_intr; 62static int ad1816_probe(device_t dev); 63static int ad1816_attach(device_t dev); 64 65/* IO primitives */ 66static int ad1816_wait_init(struct ad1816_info *ad1816, int x); 67static u_short ad1816_read(struct ad1816_info *ad1816, u_int reg); 68static void ad1816_write(struct ad1816_info *ad1816, u_int reg, u_short data); 69 70static devclass_t pcm_devclass; 71 72static u_int32_t ad1816_fmt[] = { 73 AFMT_U8, 74 AFMT_STEREO | AFMT_U8, 75 AFMT_S16_LE, 76 AFMT_STEREO | AFMT_S16_LE, 77 AFMT_MU_LAW, 78 AFMT_STEREO | AFMT_MU_LAW, 79 AFMT_A_LAW, 80 AFMT_STEREO | AFMT_A_LAW, 81 0 82}; 83 84static struct pcmchan_caps ad1816_caps = {4000, 55200, ad1816_fmt, 0}; 85 86#define AD1816_MUTE 31 /* value for mute */ 87 88static void 89ad1816_lock(struct ad1816_info *ad1816) 90{ 91 snd_mtxlock(ad1816->lock); 92} 93 94static void 95ad1816_unlock(struct ad1816_info *ad1816) 96{ 97 snd_mtxunlock(ad1816->lock); 98} 99 100static int 101port_rd(struct resource *port, int off) 102{ 103 if (port) 104 return bus_space_read_1(rman_get_bustag(port), 105 rman_get_bushandle(port), 106 off); 107 else 108 return -1; 109} 110 111static void 112port_wr(struct resource *port, int off, u_int8_t data) 113{ 114 if (port) 115 return bus_space_write_1(rman_get_bustag(port), 116 rman_get_bushandle(port), 117 off, data); 118} 119 120static int 121io_rd(struct ad1816_info *ad1816, int reg) 122{ 123 return port_rd(ad1816->io_base, reg); 124} 125 126static void 127io_wr(struct ad1816_info *ad1816, int reg, u_int8_t data) 128{ 129 return port_wr(ad1816->io_base, reg, data); 130} 131 132static void 133ad1816_intr(void *arg) 134{ 135 struct ad1816_info *ad1816 = (struct ad1816_info *)arg; 136 unsigned char c, served = 0; 137 138 ad1816_lock(ad1816); 139 /* get interupt status */ 140 c = io_rd(ad1816, AD1816_INT); 141 142 /* check for stray interupts */ 143 if (c & ~(AD1816_INTRCI | AD1816_INTRPI)) { 144 printf("pcm: stray int (%x)\n", c); 145 c &= AD1816_INTRCI | AD1816_INTRPI; 146 } 147 /* check for capture interupt */ 148 if (sndbuf_runsz(ad1816->rch.buffer) && (c & AD1816_INTRCI)) { 149 chn_intr(ad1816->rch.channel); 150 served |= AD1816_INTRCI; /* cp served */ 151 } 152 /* check for playback interupt */ 153 if (sndbuf_runsz(ad1816->pch.buffer) && (c & AD1816_INTRPI)) { 154 chn_intr(ad1816->pch.channel); 155 served |= AD1816_INTRPI; /* pb served */ 156 } 157 if (served == 0) { 158 /* this probably means this is not a (working) ad1816 chip, */ 159 /* or an error in dma handling */ 160 printf("pcm: int without reason (%x)\n", c); 161 c = 0; 162 } else c &= ~served; 163 io_wr(ad1816, AD1816_INT, c); 164 c = io_rd(ad1816, AD1816_INT); 165 if (c != 0) printf("pcm: int clear failed (%x)\n", c); 166 ad1816_unlock(ad1816); 167} 168 169static int 170ad1816_wait_init(struct ad1816_info *ad1816, int x) 171{ 172 int n = 0; /* to shut up the compiler... */ 173 174 for (; x--;) 175 if ((n = (io_rd(ad1816, AD1816_ALE) & AD1816_BUSY)) == 0) DELAY(10); 176 else return n; 177 printf("ad1816_wait_init failed 0x%02x.\n", n); 178 return -1; 179} 180 181static unsigned short 182ad1816_read(struct ad1816_info *ad1816, unsigned int reg) 183{ 184 u_short x = 0; 185 186 if (ad1816_wait_init(ad1816, 100) == -1) return 0; 187 io_wr(ad1816, AD1816_ALE, 0); 188 io_wr(ad1816, AD1816_ALE, (reg & AD1816_ALEMASK)); 189 if (ad1816_wait_init(ad1816, 100) == -1) return 0; 190 x = (io_rd(ad1816, AD1816_HIGH) << 8) | io_rd(ad1816, AD1816_LOW); 191 return x; 192} 193 194static void 195ad1816_write(struct ad1816_info *ad1816, unsigned int reg, unsigned short data) 196{ 197 if (ad1816_wait_init(ad1816, 100) == -1) return; 198 io_wr(ad1816, AD1816_ALE, (reg & AD1816_ALEMASK)); 199 io_wr(ad1816, AD1816_LOW, (data & 0x000000ff)); 200 io_wr(ad1816, AD1816_HIGH, (data & 0x0000ff00) >> 8); 201} 202 203/* -------------------------------------------------------------------- */ 204 205static int 206ad1816mix_init(struct snd_mixer *m) 207{ 208 mix_setdevs(m, AD1816_MIXER_DEVICES); 209 mix_setrecdevs(m, AD1816_REC_DEVICES); 210 return 0; 211} 212 213static int 214ad1816mix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right) 215{ 216 struct ad1816_info *ad1816 = mix_getdevinfo(m); 217 u_short reg = 0; 218 219 /* Scale volumes */ 220 left = AD1816_MUTE - (AD1816_MUTE * left) / 100; 221 right = AD1816_MUTE - (AD1816_MUTE * right) / 100; 222 223 reg = (left << 8) | right; 224 225 /* do channel selective muting if volume is zero */ 226 if (left == AD1816_MUTE) reg |= 0x8000; 227 if (right == AD1816_MUTE) reg |= 0x0080; 228 229 ad1816_lock(ad1816); 230 switch (dev) { 231 case SOUND_MIXER_VOLUME: /* Register 14 master volume */ 232 ad1816_write(ad1816, 14, reg); 233 break; 234 235 case SOUND_MIXER_CD: /* Register 15 cd */ 236 case SOUND_MIXER_LINE1: 237 ad1816_write(ad1816, 15, reg); 238 break; 239 240 case SOUND_MIXER_SYNTH: /* Register 16 synth */ 241 ad1816_write(ad1816, 16, reg); 242 break; 243 244 case SOUND_MIXER_PCM: /* Register 4 pcm */ 245 ad1816_write(ad1816, 4, reg); 246 break; 247 248 case SOUND_MIXER_LINE: 249 case SOUND_MIXER_LINE3: /* Register 18 line in */ 250 ad1816_write(ad1816, 18, reg); 251 break; 252 253 case SOUND_MIXER_MIC: /* Register 19 mic volume */ 254 ad1816_write(ad1816, 19, reg & ~0xff); /* mic is mono */ 255 break; 256 257 case SOUND_MIXER_IGAIN: 258 /* and now to something completely different ... */ 259 ad1816_write(ad1816, 20, ((ad1816_read(ad1816, 20) & ~0x0f0f) 260 | (((AD1816_MUTE - left) / 2) << 8) /* four bits of adc gain */ 261 | ((AD1816_MUTE - right) / 2))); 262 break; 263 264 default: 265 printf("ad1816_mixer_set(): unknown device.\n"); 266 break; 267 } 268 ad1816_unlock(ad1816); 269 270 left = ((AD1816_MUTE - left) * 100) / AD1816_MUTE; 271 right = ((AD1816_MUTE - right) * 100) / AD1816_MUTE; 272 273 return left | (right << 8); 274} 275 276static int 277ad1816mix_setrecsrc(struct snd_mixer *m, u_int32_t src) 278{ 279 struct ad1816_info *ad1816 = mix_getdevinfo(m); 280 int dev; 281 282 switch (src) { 283 case SOUND_MASK_LINE: 284 case SOUND_MASK_LINE3: 285 dev = 0x00; 286 break; 287 288 case SOUND_MASK_CD: 289 case SOUND_MASK_LINE1: 290 dev = 0x20; 291 break; 292 293 case SOUND_MASK_MIC: 294 default: 295 dev = 0x50; 296 src = SOUND_MASK_MIC; 297 } 298 299 dev |= dev << 8; 300 ad1816_lock(ad1816); 301 ad1816_write(ad1816, 20, (ad1816_read(ad1816, 20) & ~0x7070) | dev); 302 ad1816_unlock(ad1816); 303 return src; 304} 305 306static kobj_method_t ad1816mixer_methods[] = { 307 KOBJMETHOD(mixer_init, ad1816mix_init), 308 KOBJMETHOD(mixer_set, ad1816mix_set), 309 KOBJMETHOD(mixer_setrecsrc, ad1816mix_setrecsrc), 310 { 0, 0 } 311}; 312MIXER_DECLARE(ad1816mixer); 313 314/* -------------------------------------------------------------------- */ 315/* channel interface */ 316static void * 317ad1816chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir) 318{ 319 struct ad1816_info *ad1816 = devinfo; 320 struct ad1816_chinfo *ch = (dir == PCMDIR_PLAY)? &ad1816->pch : &ad1816->rch; 321 322 ch->parent = ad1816; 323 ch->channel = c; 324 ch->buffer = b; 325 if (sndbuf_alloc(ch->buffer, ad1816->parent_dmat, DSP_BUFFSIZE) == -1) return NULL; 326 return ch; 327} 328 329static int 330ad1816chan_setdir(kobj_t obj, void *data, int dir) 331{ 332 struct ad1816_chinfo *ch = data; 333 struct ad1816_info *ad1816 = ch->parent; 334 335 sndbuf_isadmasetup(ch->buffer, (dir == PCMDIR_PLAY)? ad1816->drq1 : ad1816->drq2); 336 ch->dir = dir; 337 return 0; 338} 339 340static int 341ad1816chan_setformat(kobj_t obj, void *data, u_int32_t format) 342{ 343 struct ad1816_chinfo *ch = data; 344 struct ad1816_info *ad1816 = ch->parent; 345 int fmt = AD1816_U8, reg; 346 347 ad1816_lock(ad1816); 348 if (ch->dir == PCMDIR_PLAY) { 349 reg = AD1816_PLAY; 350 ad1816_write(ad1816, 8, 0x0000); /* reset base and current counter */ 351 ad1816_write(ad1816, 9, 0x0000); /* for playback and capture */ 352 } else { 353 reg = AD1816_CAPT; 354 ad1816_write(ad1816, 10, 0x0000); 355 ad1816_write(ad1816, 11, 0x0000); 356 } 357 switch (format & ~AFMT_STEREO) { 358 case AFMT_A_LAW: 359 fmt = AD1816_ALAW; 360 break; 361 362 case AFMT_MU_LAW: 363 fmt = AD1816_MULAW; 364 break; 365 366 case AFMT_S16_LE: 367 fmt = AD1816_S16LE; 368 break; 369 370 case AFMT_S16_BE: 371 fmt = AD1816_S16BE; 372 break; 373 374 case AFMT_U8: 375 fmt = AD1816_U8; 376 break; 377 } 378 if (format & AFMT_STEREO) fmt |= AD1816_STEREO; 379 io_wr(ad1816, reg, fmt); 380 ad1816_unlock(ad1816); 381 return format; 382} 383 384static int 385ad1816chan_setspeed(kobj_t obj, void *data, u_int32_t speed) 386{ 387 struct ad1816_chinfo *ch = data; 388 struct ad1816_info *ad1816 = ch->parent; 389 390 RANGE(speed, 4000, 55200); 391 ad1816_lock(ad1816); 392 ad1816_write(ad1816, (ch->dir == PCMDIR_PLAY)? 2 : 3, speed); 393 ad1816_unlock(ad1816); 394 return speed; 395} 396 397static int 398ad1816chan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize) 399{ 400 struct ad1816_chinfo *ch = data; 401 402 ch->blksz = blocksize; 403 return ch->blksz; 404} 405 406static int 407ad1816chan_trigger(kobj_t obj, void *data, int go) 408{ 409 struct ad1816_chinfo *ch = data; 410 struct ad1816_info *ad1816 = ch->parent; 411 int wr, reg; 412 413 if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD) 414 return 0; 415 416 sndbuf_isadma(ch->buffer, go); 417 wr = (ch->dir == PCMDIR_PLAY); 418 reg = wr? AD1816_PLAY : AD1816_CAPT; 419 ad1816_lock(ad1816); 420 switch (go) { 421 case PCMTRIG_START: 422 /* start only if not already running */ 423 if (!(io_rd(ad1816, reg) & AD1816_ENABLE)) { 424 int cnt = ((ch->blksz) >> 2) - 1; 425 ad1816_write(ad1816, wr? 8 : 10, cnt); /* count */ 426 ad1816_write(ad1816, wr? 9 : 11, 0); /* reset cur cnt */ 427 ad1816_write(ad1816, 1, ad1816_read(ad1816, 1) | 428 (wr? 0x8000 : 0x4000)); /* enable int */ 429 /* enable playback */ 430 io_wr(ad1816, reg, io_rd(ad1816, reg) | AD1816_ENABLE); 431 if (!(io_rd(ad1816, reg) & AD1816_ENABLE)) 432 printf("ad1816: failed to start %s DMA!\n", 433 wr? "play" : "rec"); 434 } 435 break; 436 437 case PCMTRIG_STOP: 438 case PCMTRIG_ABORT: /* XXX check this... */ 439 /* we don't test here if it is running... */ 440 if (wr) { 441 ad1816_write(ad1816, 1, ad1816_read(ad1816, 1) & 442 ~(wr? 0x8000 : 0x4000)); 443 /* disable int */ 444 io_wr(ad1816, reg, io_rd(ad1816, reg) & ~AD1816_ENABLE); 445 /* disable playback */ 446 if (io_rd(ad1816, reg) & AD1816_ENABLE) 447 printf("ad1816: failed to stop %s DMA!\n", 448 wr? "play" : "rec"); 449 ad1816_write(ad1816, wr? 8 : 10, 0); /* reset base cnt */ 450 ad1816_write(ad1816, wr? 9 : 11, 0); /* reset cur cnt */ 451 } 452 break; 453 } 454 ad1816_unlock(ad1816); 455 return 0; 456} 457 458static int 459ad1816chan_getptr(kobj_t obj, void *data) 460{ 461 struct ad1816_chinfo *ch = data; 462 return sndbuf_isadmaptr(ch->buffer); 463} 464 465static struct pcmchan_caps * 466ad1816chan_getcaps(kobj_t obj, void *data) 467{ 468 return &ad1816_caps; 469} 470 471static kobj_method_t ad1816chan_methods[] = { 472 KOBJMETHOD(channel_init, ad1816chan_init), 473 KOBJMETHOD(channel_setdir, ad1816chan_setdir), 474 KOBJMETHOD(channel_setformat, ad1816chan_setformat), 475 KOBJMETHOD(channel_setspeed, ad1816chan_setspeed), 476 KOBJMETHOD(channel_setblocksize, ad1816chan_setblocksize), 477 KOBJMETHOD(channel_trigger, ad1816chan_trigger), 478 KOBJMETHOD(channel_getptr, ad1816chan_getptr), 479 KOBJMETHOD(channel_getcaps, ad1816chan_getcaps), 480 { 0, 0 } 481}; 482CHANNEL_DECLARE(ad1816chan); 483 484/* -------------------------------------------------------------------- */ 485 486static void 487ad1816_release_resources(struct ad1816_info *ad1816, device_t dev) 488{ 489 if (ad1816->irq) { 490 if (ad1816->ih) 491 bus_teardown_intr(dev, ad1816->irq, ad1816->ih); 492 bus_release_resource(dev, SYS_RES_IRQ, ad1816->irq_rid, 493 ad1816->irq); 494 ad1816->irq = 0; 495 } 496 if (ad1816->drq1) { 497 bus_release_resource(dev, SYS_RES_DRQ, ad1816->drq1_rid, 498 ad1816->drq1); 499 ad1816->drq1 = 0; 500 } 501 if (ad1816->drq2) { 502 bus_release_resource(dev, SYS_RES_DRQ, ad1816->drq2_rid, 503 ad1816->drq2); 504 ad1816->drq2 = 0; 505 } 506 if (ad1816->io_base) { 507 bus_release_resource(dev, SYS_RES_IOPORT, ad1816->io_rid, 508 ad1816->io_base); 509 ad1816->io_base = 0; 510 } 511 if (ad1816->parent_dmat) { 512 bus_dma_tag_destroy(ad1816->parent_dmat); 513 ad1816->parent_dmat = 0; 514 } 515 if (ad1816->lock) snd_mtxfree(ad1816->lock); 516 free(ad1816, M_DEVBUF); 517} 518 519static int 520ad1816_alloc_resources(struct ad1816_info *ad1816, device_t dev) 521{ 522 int ok = 1, pdma, rdma; 523 if (!ad1816->io_base) 524 ad1816->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT, &ad1816->io_rid, 525 0, ~0, 1, RF_ACTIVE); 526 if (!ad1816->irq) 527 ad1816->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &ad1816->irq_rid, 528 0, ~0, 1, RF_ACTIVE); 529 if (!ad1816->drq1) 530 ad1816->drq1 = bus_alloc_resource(dev, SYS_RES_DRQ, &ad1816->drq1_rid, 531 0, ~0, 1, RF_ACTIVE); 532 if (!ad1816->drq2) 533 ad1816->drq2 = bus_alloc_resource(dev, SYS_RES_DRQ, &ad1816->drq2_rid, 534 0, ~0, 1, RF_ACTIVE); 535 536 if (!ad1816->io_base || !ad1816->drq1 || !ad1816->irq) ok = 0; 537 538 if (ok) { 539 pdma = rman_get_start(ad1816->drq1); 540 isa_dma_acquire(pdma); 541 isa_dmainit(pdma, DSP_BUFFSIZE); 542 if (ad1816->drq2) { 543 rdma = rman_get_start(ad1816->drq2); 544 isa_dma_acquire(rdma); 545 isa_dmainit(rdma, DSP_BUFFSIZE); 546 } else rdma = pdma; 547 if (pdma == rdma) 548 pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX); 549 } 550 return ok; 551} 552 553static int 554ad1816_init(struct ad1816_info *ad1816, device_t dev) 555{ 556 ad1816_write(ad1816, 1, 0x2); /* disable interrupts */ 557 ad1816_write(ad1816, 32, 0x90F0); /* SoundSys Mode, split fmt */ 558 559 ad1816_write(ad1816, 5, 0x8080); /* FM volume mute */ 560 ad1816_write(ad1816, 6, 0x8080); /* I2S1 volume mute */ 561 ad1816_write(ad1816, 7, 0x8080); /* I2S0 volume mute */ 562 ad1816_write(ad1816, 17, 0x8888); /* VID Volume mute */ 563 ad1816_write(ad1816, 20, 0x5050); /* recsrc mic, agc off */ 564 /* adc gain is set to 0 */ 565 566 return 0; 567} 568 569static int 570ad1816_probe(device_t dev) 571{ 572 char *s = NULL; 573 u_int32_t logical_id = isa_get_logicalid(dev); 574 575 switch (logical_id) { 576 case 0x80719304: /* ADS7180 */ 577 s = "AD1816"; 578 break; 579 } 580 581 if (s) { 582 device_set_desc(dev, s); 583 return 0; 584 } 585 return ENXIO; 586} 587 588static int 589ad1816_attach(device_t dev) 590{ 591 struct ad1816_info *ad1816; 592 char status[SND_STATUSLEN]; 593 594 ad1816 = (struct ad1816_info *)malloc(sizeof *ad1816, M_DEVBUF, M_NOWAIT); 595 if (!ad1816) return ENXIO; 596 bzero(ad1816, sizeof *ad1816); 597 598 ad1816->lock = snd_mtxcreate(device_get_nameunit(dev)); 599 ad1816->io_rid = 2; 600 ad1816->irq_rid = 0; 601 ad1816->drq1_rid = 0; 602 ad1816->drq2_rid = 1; 603 604 if (!ad1816_alloc_resources(ad1816, dev)) goto no; 605 ad1816_init(ad1816, dev); 606 if (mixer_init(dev, &ad1816mixer_class, ad1816)) goto no; 607 608 snd_setup_intr(dev, ad1816->irq, INTR_MPSAFE, ad1816_intr, ad1816, &ad1816->ih); 609 if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, 610 /*lowaddr*/BUS_SPACE_MAXADDR_24BIT, 611 /*highaddr*/BUS_SPACE_MAXADDR, 612 /*filter*/NULL, /*filterarg*/NULL, 613 /*maxsize*/DSP_BUFFSIZE, /*nsegments*/1, 614 /*maxsegz*/0x3ffff, 615 /*flags*/0, &ad1816->parent_dmat) != 0) { 616 device_printf(dev, "unable to create dma tag\n"); 617 goto no; 618 } 619 snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %ld", 620 rman_get_start(ad1816->io_base), 621 rman_get_start(ad1816->irq), 622 rman_get_start(ad1816->drq1)); 623 if (ad1816->drq2) snprintf(status + strlen(status), 624 SND_STATUSLEN - strlen(status), ":%ld", 625 rman_get_start(ad1816->drq2)); 626 627 if (pcm_register(dev, ad1816, 1, 1)) goto no; 628 pcm_addchan(dev, PCMDIR_REC, &ad1816chan_class, ad1816); 629 pcm_addchan(dev, PCMDIR_PLAY, &ad1816chan_class, ad1816); 630 pcm_setstatus(dev, status); 631 632 return 0; 633no: 634 ad1816_release_resources(ad1816, dev); 635 636 return ENXIO; 637 638} 639 640static int 641ad1816_detach(device_t dev) 642{ 643 int r; 644 struct ad1816_info *ad1816; 645 646 r = pcm_unregister(dev); 647 if (r) 648 return r; 649 650 ad1816 = pcm_getdevinfo(dev); 651 ad1816_release_resources(ad1816, dev); 652 return 0; 653} 654 655static device_method_t ad1816_methods[] = { 656 /* Device interface */ 657 DEVMETHOD(device_probe, ad1816_probe), 658 DEVMETHOD(device_attach, ad1816_attach), 659 DEVMETHOD(device_detach, ad1816_detach), 660 661 { 0, 0 } 662}; 663 664static driver_t ad1816_driver = { 665 "pcm", 666 ad1816_methods, 667 sizeof(struct snddev_info), 668}; 669 670DRIVER_MODULE(snd_ad1816, isa, ad1816_driver, pcm_devclass, 0, 0); 671MODULE_DEPEND(snd_ad1816, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER); 672MODULE_VERSION(snd_ad1816, 1); 673 674 675