Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/sound/isa/ad1816.c
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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 29 #include <dev/sound/pcm/sound.h> 30 #include <dev/sound/isa/ad1816.h> 31 32 #include "mixer_if.h" 33 34 SND_DECLARE_FILE("$FreeBSD$"); 35 36 struct ad1816_info; 37 38 struct ad1816_chinfo { 39 struct ad1816_info *parent; 40 struct pcm_channel *channel; 41 struct snd_dbuf *buffer; 42 int dir, blksz; 43 }; 44 45 struct 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 unsigned int bufsize; 59 struct ad1816_chinfo pch, rch; 60 }; 61 62 static u_int32_t ad1816_fmt[] = { 63 AFMT_U8, 64 AFMT_STEREO | AFMT_U8, 65 AFMT_S16_LE, 66 AFMT_STEREO | AFMT_S16_LE, 67 AFMT_MU_LAW, 68 AFMT_STEREO | AFMT_MU_LAW, 69 AFMT_A_LAW, 70 AFMT_STEREO | AFMT_A_LAW, 71 0 72 }; 73 74 static struct pcmchan_caps ad1816_caps = {4000, 55200, ad1816_fmt, 0}; 75 76 #define AD1816_MUTE 31 /* value for mute */ 77 78 static void 79 ad1816_lock(struct ad1816_info *ad1816) 80 { 81 snd_mtxlock(ad1816->lock); 82 } 83 84 static void 85 ad1816_unlock(struct ad1816_info *ad1816) 86 { 87 snd_mtxunlock(ad1816->lock); 88 } 89 90 static int 91 port_rd(struct resource *port, int off) 92 { 93 if (port) 94 return bus_space_read_1(rman_get_bustag(port), 95 rman_get_bushandle(port), 96 off); 97 else 98 return -1; 99 } 100 101 static void 102 port_wr(struct resource *port, int off, u_int8_t data) 103 { 104 if (port) 105 bus_space_write_1(rman_get_bustag(port), 106 rman_get_bushandle(port), 107 off, data); 108 } 109 110 static int 111 io_rd(struct ad1816_info *ad1816, int reg) 112 { 113 return port_rd(ad1816->io_base, reg); 114 } 115 116 static void 117 io_wr(struct ad1816_info *ad1816, int reg, u_int8_t data) 118 { 119 port_wr(ad1816->io_base, reg, data); 120 } 121 122 static void 123 ad1816_intr(void *arg) 124 { 125 struct ad1816_info *ad1816 = (struct ad1816_info *)arg; 126 unsigned char c, served = 0; 127 128 ad1816_lock(ad1816); 129 /* get interupt status */ 130 c = io_rd(ad1816, AD1816_INT); 131 132 /* check for stray interupts */ 133 if (c & ~(AD1816_INTRCI | AD1816_INTRPI)) { 134 printf("pcm: stray int (%x)\n", c); 135 c &= AD1816_INTRCI | AD1816_INTRPI; 136 } 137 /* check for capture interupt */ 138 if (sndbuf_runsz(ad1816->rch.buffer) && (c & AD1816_INTRCI)) { 139 chn_intr(ad1816->rch.channel); 140 served |= AD1816_INTRCI; /* cp served */ 141 } 142 /* check for playback interupt */ 143 if (sndbuf_runsz(ad1816->pch.buffer) && (c & AD1816_INTRPI)) { 144 chn_intr(ad1816->pch.channel); 145 served |= AD1816_INTRPI; /* pb served */ 146 } 147 if (served == 0) { 148 /* this probably means this is not a (working) ad1816 chip, */ 149 /* or an error in dma handling */ 150 printf("pcm: int without reason (%x)\n", c); 151 c = 0; 152 } else c &= ~served; 153 io_wr(ad1816, AD1816_INT, c); 154 c = io_rd(ad1816, AD1816_INT); 155 if (c != 0) printf("pcm: int clear failed (%x)\n", c); 156 ad1816_unlock(ad1816); 157 } 158 159 static int 160 ad1816_wait_init(struct ad1816_info *ad1816, int x) 161 { 162 int n = 0; /* to shut up the compiler... */ 163 164 for (; x--;) 165 if ((n = (io_rd(ad1816, AD1816_ALE) & AD1816_BUSY)) == 0) DELAY(10); 166 else return n; 167 printf("ad1816_wait_init failed 0x%02x.\n", n); 168 return -1; 169 } 170 171 static unsigned short 172 ad1816_read(struct ad1816_info *ad1816, unsigned int reg) 173 { 174 u_short x = 0; 175 176 if (ad1816_wait_init(ad1816, 100) == -1) return 0; 177 io_wr(ad1816, AD1816_ALE, 0); 178 io_wr(ad1816, AD1816_ALE, (reg & AD1816_ALEMASK)); 179 if (ad1816_wait_init(ad1816, 100) == -1) return 0; 180 x = (io_rd(ad1816, AD1816_HIGH) << 8) | io_rd(ad1816, AD1816_LOW); 181 return x; 182 } 183 184 static void 185 ad1816_write(struct ad1816_info *ad1816, unsigned int reg, unsigned short data) 186 { 187 if (ad1816_wait_init(ad1816, 100) == -1) return; 188 io_wr(ad1816, AD1816_ALE, (reg & AD1816_ALEMASK)); 189 io_wr(ad1816, AD1816_LOW, (data & 0x000000ff)); 190 io_wr(ad1816, AD1816_HIGH, (data & 0x0000ff00) >> 8); 191 } 192 193 /* -------------------------------------------------------------------- */ 194 195 static int 196 ad1816mix_init(struct snd_mixer *m) 197 { 198 mix_setdevs(m, AD1816_MIXER_DEVICES); 199 mix_setrecdevs(m, AD1816_REC_DEVICES); 200 return 0; 201 } 202 203 static int 204 ad1816mix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right) 205 { 206 struct ad1816_info *ad1816 = mix_getdevinfo(m); 207 u_short reg = 0; 208 209 /* Scale volumes */ 210 left = AD1816_MUTE - (AD1816_MUTE * left) / 100; 211 right = AD1816_MUTE - (AD1816_MUTE * right) / 100; 212 213 reg = (left << 8) | right; 214 215 /* do channel selective muting if volume is zero */ 216 if (left == AD1816_MUTE) reg |= 0x8000; 217 if (right == AD1816_MUTE) reg |= 0x0080; 218 219 ad1816_lock(ad1816); 220 switch (dev) { 221 case SOUND_MIXER_VOLUME: /* Register 14 master volume */ 222 ad1816_write(ad1816, 14, reg); 223 break; 224 225 case SOUND_MIXER_CD: /* Register 15 cd */ 226 case SOUND_MIXER_LINE1: 227 ad1816_write(ad1816, 15, reg); 228 break; 229 230 case SOUND_MIXER_SYNTH: /* Register 16 synth */ 231 ad1816_write(ad1816, 16, reg); 232 break; 233 234 case SOUND_MIXER_PCM: /* Register 4 pcm */ 235 ad1816_write(ad1816, 4, reg); 236 break; 237 238 case SOUND_MIXER_LINE: 239 case SOUND_MIXER_LINE3: /* Register 18 line in */ 240 ad1816_write(ad1816, 18, reg); 241 break; 242 243 case SOUND_MIXER_MIC: /* Register 19 mic volume */ 244 ad1816_write(ad1816, 19, reg & ~0xff); /* mic is mono */ 245 break; 246 247 case SOUND_MIXER_IGAIN: 248 /* and now to something completely different ... */ 249 ad1816_write(ad1816, 20, ((ad1816_read(ad1816, 20) & ~0x0f0f) 250 | (((AD1816_MUTE - left) / 2) << 8) /* four bits of adc gain */ 251 | ((AD1816_MUTE - right) / 2))); 252 break; 253 254 default: 255 printf("ad1816_mixer_set(): unknown device.\n"); 256 break; 257 } 258 ad1816_unlock(ad1816); 259 260 left = ((AD1816_MUTE - left) * 100) / AD1816_MUTE; 261 right = ((AD1816_MUTE - right) * 100) / AD1816_MUTE; 262 263 return left | (right << 8); 264 } 265 266 static int 267 ad1816mix_setrecsrc(struct snd_mixer *m, u_int32_t src) 268 { 269 struct ad1816_info *ad1816 = mix_getdevinfo(m); 270 int dev; 271 272 switch (src) { 273 case SOUND_MASK_LINE: 274 case SOUND_MASK_LINE3: 275 dev = 0x00; 276 break; 277 278 case SOUND_MASK_CD: 279 case SOUND_MASK_LINE1: 280 dev = 0x20; 281 break; 282 283 case SOUND_MASK_MIC: 284 default: 285 dev = 0x50; 286 src = SOUND_MASK_MIC; 287 } 288 289 dev |= dev << 8; 290 ad1816_lock(ad1816); 291 ad1816_write(ad1816, 20, (ad1816_read(ad1816, 20) & ~0x7070) | dev); 292 ad1816_unlock(ad1816); 293 return src; 294 } 295 296 static kobj_method_t ad1816mixer_methods[] = { 297 KOBJMETHOD(mixer_init, ad1816mix_init), 298 KOBJMETHOD(mixer_set, ad1816mix_set), 299 KOBJMETHOD(mixer_setrecsrc, ad1816mix_setrecsrc), 300 { 0, 0 } 301 }; 302 MIXER_DECLARE(ad1816mixer); 303 304 /* -------------------------------------------------------------------- */ 305 /* channel interface */ 306 static void * 307 ad1816chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir) 308 { 309 struct ad1816_info *ad1816 = devinfo; 310 struct ad1816_chinfo *ch = (dir == PCMDIR_PLAY)? &ad1816->pch : &ad1816->rch; 311 312 ch->parent = ad1816; 313 ch->channel = c; 314 ch->buffer = b; 315 if (sndbuf_alloc(ch->buffer, ad1816->parent_dmat, ad1816->bufsize) == -1) return NULL; 316 return ch; 317 } 318 319 static int 320 ad1816chan_setdir(kobj_t obj, void *data, int dir) 321 { 322 struct ad1816_chinfo *ch = data; 323 struct ad1816_info *ad1816 = ch->parent; 324 325 sndbuf_isadmasetup(ch->buffer, (dir == PCMDIR_PLAY)? ad1816->drq1 : ad1816->drq2); 326 ch->dir = dir; 327 return 0; 328 } 329 330 static int 331 ad1816chan_setformat(kobj_t obj, void *data, u_int32_t format) 332 { 333 struct ad1816_chinfo *ch = data; 334 struct ad1816_info *ad1816 = ch->parent; 335 int fmt = AD1816_U8, reg; 336 337 ad1816_lock(ad1816); 338 if (ch->dir == PCMDIR_PLAY) { 339 reg = AD1816_PLAY; 340 ad1816_write(ad1816, 8, 0x0000); /* reset base and current counter */ 341 ad1816_write(ad1816, 9, 0x0000); /* for playback and capture */ 342 } else { 343 reg = AD1816_CAPT; 344 ad1816_write(ad1816, 10, 0x0000); 345 ad1816_write(ad1816, 11, 0x0000); 346 } 347 switch (format & ~AFMT_STEREO) { 348 case AFMT_A_LAW: 349 fmt = AD1816_ALAW; 350 break; 351 352 case AFMT_MU_LAW: 353 fmt = AD1816_MULAW; 354 break; 355 356 case AFMT_S16_LE: 357 fmt = AD1816_S16LE; 358 break; 359 360 case AFMT_S16_BE: 361 fmt = AD1816_S16BE; 362 break; 363 364 case AFMT_U8: 365 fmt = AD1816_U8; 366 break; 367 } 368 if (format & AFMT_STEREO) fmt |= AD1816_STEREO; 369 io_wr(ad1816, reg, fmt); 370 ad1816_unlock(ad1816); 371 372 return (0); 373 } 374 375 static int 376 ad1816chan_setspeed(kobj_t obj, void *data, u_int32_t speed) 377 { 378 struct ad1816_chinfo *ch = data; 379 struct ad1816_info *ad1816 = ch->parent; 380 381 RANGE(speed, 4000, 55200); 382 ad1816_lock(ad1816); 383 ad1816_write(ad1816, (ch->dir == PCMDIR_PLAY)? 2 : 3, speed); 384 ad1816_unlock(ad1816); 385 return speed; 386 } 387 388 static int 389 ad1816chan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize) 390 { 391 struct ad1816_chinfo *ch = data; 392 393 ch->blksz = blocksize; 394 return ch->blksz; 395 } 396 397 static int 398 ad1816chan_trigger(kobj_t obj, void *data, int go) 399 { 400 struct ad1816_chinfo *ch = data; 401 struct ad1816_info *ad1816 = ch->parent; 402 int wr, reg; 403 404 if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD) 405 return 0; 406 407 sndbuf_isadma(ch->buffer, go); 408 wr = (ch->dir == PCMDIR_PLAY); 409 reg = wr? AD1816_PLAY : AD1816_CAPT; 410 ad1816_lock(ad1816); 411 switch (go) { 412 case PCMTRIG_START: 413 /* start only if not already running */ 414 if (!(io_rd(ad1816, reg) & AD1816_ENABLE)) { 415 int cnt = ((ch->blksz) >> 2) - 1; 416 ad1816_write(ad1816, wr? 8 : 10, cnt); /* count */ 417 ad1816_write(ad1816, wr? 9 : 11, 0); /* reset cur cnt */ 418 ad1816_write(ad1816, 1, ad1816_read(ad1816, 1) | 419 (wr? 0x8000 : 0x4000)); /* enable int */ 420 /* enable playback */ 421 io_wr(ad1816, reg, io_rd(ad1816, reg) | AD1816_ENABLE); 422 if (!(io_rd(ad1816, reg) & AD1816_ENABLE)) 423 printf("ad1816: failed to start %s DMA!\n", 424 wr? "play" : "rec"); 425 } 426 break; 427 428 case PCMTRIG_STOP: 429 case PCMTRIG_ABORT: /* XXX check this... */ 430 /* we don't test here if it is running... */ 431 if (wr) { 432 ad1816_write(ad1816, 1, ad1816_read(ad1816, 1) & 433 ~(wr? 0x8000 : 0x4000)); 434 /* disable int */ 435 io_wr(ad1816, reg, io_rd(ad1816, reg) & ~AD1816_ENABLE); 436 /* disable playback */ 437 if (io_rd(ad1816, reg) & AD1816_ENABLE) 438 printf("ad1816: failed to stop %s DMA!\n", 439 wr? "play" : "rec"); 440 ad1816_write(ad1816, wr? 8 : 10, 0); /* reset base cnt */ 441 ad1816_write(ad1816, wr? 9 : 11, 0); /* reset cur cnt */ 442 } 443 break; 444 } 445 ad1816_unlock(ad1816); 446 return 0; 447 } 448 449 static int 450 ad1816chan_getptr(kobj_t obj, void *data) 451 { 452 struct ad1816_chinfo *ch = data; 453 return sndbuf_isadmaptr(ch->buffer); 454 } 455 456 static struct pcmchan_caps * 457 ad1816chan_getcaps(kobj_t obj, void *data) 458 { 459 return &ad1816_caps; 460 } 461 462 static kobj_method_t ad1816chan_methods[] = { 463 KOBJMETHOD(channel_init, ad1816chan_init), 464 KOBJMETHOD(channel_setdir, ad1816chan_setdir), 465 KOBJMETHOD(channel_setformat, ad1816chan_setformat), 466 KOBJMETHOD(channel_setspeed, ad1816chan_setspeed), 467 KOBJMETHOD(channel_setblocksize, ad1816chan_setblocksize), 468 KOBJMETHOD(channel_trigger, ad1816chan_trigger), 469 KOBJMETHOD(channel_getptr, ad1816chan_getptr), 470 KOBJMETHOD(channel_getcaps, ad1816chan_getcaps), 471 { 0, 0 } 472 }; 473 CHANNEL_DECLARE(ad1816chan); 474 475 /* -------------------------------------------------------------------- */ 476 477 static void 478 ad1816_release_resources(struct ad1816_info *ad1816, device_t dev) 479 { 480 if (ad1816->irq) { 481 if (ad1816->ih) 482 bus_teardown_intr(dev, ad1816->irq, ad1816->ih); 483 bus_release_resource(dev, SYS_RES_IRQ, ad1816->irq_rid, ad1816->irq); 484 ad1816->irq = 0; 485 } 486 if (ad1816->drq1) { 487 isa_dma_release(rman_get_start(ad1816->drq1)); 488 bus_release_resource(dev, SYS_RES_DRQ, ad1816->drq1_rid, ad1816->drq1); 489 ad1816->drq1 = 0; 490 } 491 if (ad1816->drq2) { 492 isa_dma_release(rman_get_start(ad1816->drq2)); 493 bus_release_resource(dev, SYS_RES_DRQ, ad1816->drq2_rid, ad1816->drq2); 494 ad1816->drq2 = 0; 495 } 496 if (ad1816->io_base) { 497 bus_release_resource(dev, SYS_RES_IOPORT, ad1816->io_rid, ad1816->io_base); 498 ad1816->io_base = 0; 499 } 500 if (ad1816->parent_dmat) { 501 bus_dma_tag_destroy(ad1816->parent_dmat); 502 ad1816->parent_dmat = 0; 503 } 504 if (ad1816->lock) 505 snd_mtxfree(ad1816->lock); 506 507 free(ad1816, M_DEVBUF); 508 } 509 510 static int 511 ad1816_alloc_resources(struct ad1816_info *ad1816, device_t dev) 512 { 513 int ok = 1, pdma, rdma; 514 515 if (!ad1816->io_base) 516 ad1816->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT, &ad1816->io_rid, 517 0, ~0, 1, RF_ACTIVE); 518 if (!ad1816->irq) 519 ad1816->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &ad1816->irq_rid, 520 0, ~0, 1, RF_ACTIVE); 521 if (!ad1816->drq1) 522 ad1816->drq1 = bus_alloc_resource(dev, SYS_RES_DRQ, &ad1816->drq1_rid, 523 0, ~0, 1, RF_ACTIVE); 524 if (!ad1816->drq2) 525 ad1816->drq2 = bus_alloc_resource(dev, SYS_RES_DRQ, &ad1816->drq2_rid, 526 0, ~0, 1, RF_ACTIVE); 527 528 if (!ad1816->io_base || !ad1816->drq1 || !ad1816->irq) ok = 0; 529 530 if (ok) { 531 pdma = rman_get_start(ad1816->drq1); 532 isa_dma_acquire(pdma); 533 isa_dmainit(pdma, ad1816->bufsize); 534 if (ad1816->drq2) { 535 rdma = rman_get_start(ad1816->drq2); 536 isa_dma_acquire(rdma); 537 isa_dmainit(rdma, ad1816->bufsize); 538 } else 539 rdma = pdma; 540 if (pdma == rdma) 541 pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX); 542 } 543 544 return ok; 545 } 546 547 static int 548 ad1816_init(struct ad1816_info *ad1816, device_t dev) 549 { 550 ad1816_write(ad1816, 1, 0x2); /* disable interrupts */ 551 ad1816_write(ad1816, 32, 0x90F0); /* SoundSys Mode, split fmt */ 552 553 ad1816_write(ad1816, 5, 0x8080); /* FM volume mute */ 554 ad1816_write(ad1816, 6, 0x8080); /* I2S1 volume mute */ 555 ad1816_write(ad1816, 7, 0x8080); /* I2S0 volume mute */ 556 ad1816_write(ad1816, 17, 0x8888); /* VID Volume mute */ 557 ad1816_write(ad1816, 20, 0x5050); /* recsrc mic, agc off */ 558 /* adc gain is set to 0 */ 559 560 return 0; 561 } 562 563 static int 564 ad1816_probe(device_t dev) 565 { 566 char *s = NULL; 567 u_int32_t logical_id = isa_get_logicalid(dev); 568 569 switch (logical_id) { 570 case 0x80719304: /* ADS7180 */ 571 s = "AD1816"; 572 break; 573 } 574 575 if (s) { 576 device_set_desc(dev, s); 577 return 0; 578 } 579 return ENXIO; 580 } 581 582 static int 583 ad1816_attach(device_t dev) 584 { 585 struct ad1816_info *ad1816; 586 char status[SND_STATUSLEN], status2[SND_STATUSLEN]; 587 588 ad1816 = (struct ad1816_info *)malloc(sizeof *ad1816, M_DEVBUF, M_NOWAIT | M_ZERO); 589 if (!ad1816) return ENXIO; 590 591 ad1816->lock = snd_mtxcreate(device_get_nameunit(dev), "sound softc"); 592 ad1816->io_rid = 2; 593 ad1816->irq_rid = 0; 594 ad1816->drq1_rid = 0; 595 ad1816->drq2_rid = 1; 596 ad1816->bufsize = pcm_getbuffersize(dev, 4096, DSP_BUFFSIZE, 65536); 597 598 if (!ad1816_alloc_resources(ad1816, dev)) goto no; 599 ad1816_init(ad1816, dev); 600 if (mixer_init(dev, &ad1816mixer_class, ad1816)) goto no; 601 602 snd_setup_intr(dev, ad1816->irq, INTR_MPSAFE, ad1816_intr, ad1816, &ad1816->ih); 603 if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, 604 /*lowaddr*/BUS_SPACE_MAXADDR_24BIT, 605 /*highaddr*/BUS_SPACE_MAXADDR, 606 /*filter*/NULL, /*filterarg*/NULL, 607 /*maxsize*/ad1816->bufsize, /*nsegments*/1, 608 /*maxsegz*/0x3ffff, 609 /*flags*/0, &ad1816->parent_dmat) != 0) { 610 device_printf(dev, "unable to create dma tag\n"); 611 goto no; 612 } 613 if (ad1816->drq2) 614 snprintf(status2, SND_STATUSLEN, ":%ld", rman_get_start(ad1816->drq2)); 615 else 616 status2[0] = '\0'; 617 618 snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %ld%s bufsz %u", 619 rman_get_start(ad1816->io_base), 620 rman_get_start(ad1816->irq), 621 rman_get_start(ad1816->drq1), 622 status2, 623 ad1816->bufsize); 624 625 if (pcm_register(dev, ad1816, 1, 1)) goto no; 626 pcm_addchan(dev, PCMDIR_REC, &ad1816chan_class, ad1816); 627 pcm_addchan(dev, PCMDIR_PLAY, &ad1816chan_class, ad1816); 628 pcm_setstatus(dev, status); 629 630 return 0; 631 no: 632 ad1816_release_resources(ad1816, dev); 633 634 return ENXIO; 635 636 } 637 638 static int 639 ad1816_detach(device_t dev) 640 { 641 int r; 642 struct ad1816_info *ad1816; 643 644 r = pcm_unregister(dev); 645 if (r) 646 return r; 647 648 ad1816 = pcm_getdevinfo(dev); 649 ad1816_release_resources(ad1816, dev); 650 return 0; 651 } 652 653 static device_method_t ad1816_methods[] = { 654 /* Device interface */ 655 DEVMETHOD(device_probe, ad1816_probe), 656 DEVMETHOD(device_attach, ad1816_attach), 657 DEVMETHOD(device_detach, ad1816_detach), 658 659 { 0, 0 } 660 }; 661 662 static driver_t ad1816_driver = { 663 "pcm", 664 ad1816_methods, 665 PCM_SOFTC_SIZE, 666 }; 667 668 DRIVER_MODULE(snd_ad1816, isa, ad1816_driver, pcm_devclass, 0, 0); 669 MODULE_DEPEND(snd_ad1816, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER); 670 MODULE_VERSION(snd_ad1816, 1); 671 672
Cache object: 76e6ed86b47de1a3b26a5cf03e299847
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