1 /*- 2 * Copyright (c) 2012-2016 Ruslan Bukin <br@bsdpad.com> 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 * RME HDSPe driver for FreeBSD (pcm-part). 29 * Supported cards: AIO, RayDAT. 30 */ 31 32 #include <dev/sound/pcm/sound.h> 33 #include <dev/sound/pci/hdspe.h> 34 #include <dev/sound/chip.h> 35 36 #include <dev/pci/pcireg.h> 37 #include <dev/pci/pcivar.h> 38 39 #include <mixer_if.h> 40 41 SND_DECLARE_FILE("$FreeBSD$"); 42 43 struct hdspe_latency { 44 uint32_t n; 45 uint32_t period; 46 float ms; 47 }; 48 49 static struct hdspe_latency latency_map[] = { 50 { 7, 32, 0.7 }, 51 { 0, 64, 1.5 }, 52 { 1, 128, 3 }, 53 { 2, 256, 6 }, 54 { 3, 512, 12 }, 55 { 4, 1024, 23 }, 56 { 5, 2048, 46 }, 57 { 6, 4096, 93 }, 58 59 { 0, 0, 0 }, 60 }; 61 62 struct hdspe_rate { 63 uint32_t speed; 64 uint32_t reg; 65 }; 66 67 static struct hdspe_rate rate_map[] = { 68 { 32000, (HDSPE_FREQ_32000) }, 69 { 44100, (HDSPE_FREQ_44100) }, 70 { 48000, (HDSPE_FREQ_48000) }, 71 { 64000, (HDSPE_FREQ_32000 | HDSPE_FREQ_DOUBLE) }, 72 { 88200, (HDSPE_FREQ_44100 | HDSPE_FREQ_DOUBLE) }, 73 { 96000, (HDSPE_FREQ_48000 | HDSPE_FREQ_DOUBLE) }, 74 { 128000, (HDSPE_FREQ_32000 | HDSPE_FREQ_QUAD) }, 75 { 176400, (HDSPE_FREQ_44100 | HDSPE_FREQ_QUAD) }, 76 { 192000, (HDSPE_FREQ_48000 | HDSPE_FREQ_QUAD) }, 77 78 { 0, 0 }, 79 }; 80 81 82 static int 83 hdspe_hw_mixer(struct sc_chinfo *ch, unsigned int dst, 84 unsigned int src, unsigned short data) 85 { 86 struct sc_pcminfo *scp; 87 struct sc_info *sc; 88 int offs; 89 90 scp = ch->parent; 91 sc = scp->sc; 92 93 offs = 0; 94 if (ch->dir == PCMDIR_PLAY) 95 offs = 64; 96 97 hdspe_write_4(sc, HDSPE_MIXER_BASE + 98 ((offs + src + 128 * dst) * sizeof(uint32_t)), 99 data & 0xFFFF); 100 101 return (0); 102 }; 103 104 static int 105 hdspechan_setgain(struct sc_chinfo *ch) 106 { 107 108 hdspe_hw_mixer(ch, ch->lslot, ch->lslot, 109 ch->lvol * HDSPE_MAX_GAIN / 100); 110 hdspe_hw_mixer(ch, ch->rslot, ch->rslot, 111 ch->rvol * HDSPE_MAX_GAIN / 100); 112 113 return (0); 114 } 115 116 static int 117 hdspemixer_init(struct snd_mixer *m) 118 { 119 struct sc_pcminfo *scp; 120 struct sc_info *sc; 121 int mask; 122 123 scp = mix_getdevinfo(m); 124 sc = scp->sc; 125 if (sc == NULL) 126 return (-1); 127 128 mask = SOUND_MASK_PCM; 129 130 if (scp->hc->play) 131 mask |= SOUND_MASK_VOLUME; 132 133 if (scp->hc->rec) 134 mask |= SOUND_MASK_RECLEV; 135 136 snd_mtxlock(sc->lock); 137 pcm_setflags(scp->dev, pcm_getflags(scp->dev) | SD_F_SOFTPCMVOL); 138 mix_setdevs(m, mask); 139 snd_mtxunlock(sc->lock); 140 141 return (0); 142 } 143 144 static int 145 hdspemixer_set(struct snd_mixer *m, unsigned dev, 146 unsigned left, unsigned right) 147 { 148 struct sc_pcminfo *scp; 149 struct sc_chinfo *ch; 150 int i; 151 152 scp = mix_getdevinfo(m); 153 154 #if 0 155 device_printf(scp->dev, "hdspemixer_set() %d %d\n", 156 left, right); 157 #endif 158 159 for (i = 0; i < scp->chnum; i++) { 160 ch = &scp->chan[i]; 161 if ((dev == SOUND_MIXER_VOLUME && ch->dir == PCMDIR_PLAY) || 162 (dev == SOUND_MIXER_RECLEV && ch->dir == PCMDIR_REC)) { 163 ch->lvol = left; 164 ch->rvol = right; 165 if (ch->run) 166 hdspechan_setgain(ch); 167 } 168 } 169 170 return (0); 171 } 172 173 static kobj_method_t hdspemixer_methods[] = { 174 KOBJMETHOD(mixer_init, hdspemixer_init), 175 KOBJMETHOD(mixer_set, hdspemixer_set), 176 KOBJMETHOD_END 177 }; 178 MIXER_DECLARE(hdspemixer); 179 180 static void 181 hdspechan_enable(struct sc_chinfo *ch, int value) 182 { 183 struct sc_pcminfo *scp; 184 struct sc_info *sc; 185 int reg; 186 187 scp = ch->parent; 188 sc = scp->sc; 189 190 if (ch->dir == PCMDIR_PLAY) 191 reg = HDSPE_OUT_ENABLE_BASE; 192 else 193 reg = HDSPE_IN_ENABLE_BASE; 194 195 ch->run = value; 196 197 hdspe_write_1(sc, reg + (4 * ch->lslot), value); 198 hdspe_write_1(sc, reg + (4 * ch->rslot), value); 199 } 200 201 static int 202 hdspe_running(struct sc_info *sc) 203 { 204 struct sc_pcminfo *scp; 205 struct sc_chinfo *ch; 206 device_t *devlist; 207 int devcount; 208 int i, j; 209 int err; 210 211 if ((err = device_get_children(sc->dev, &devlist, &devcount)) != 0) 212 goto bad; 213 214 for (i = 0; i < devcount; i++) { 215 scp = device_get_ivars(devlist[i]); 216 for (j = 0; j < scp->chnum; j++) { 217 ch = &scp->chan[j]; 218 if (ch->run) 219 goto bad; 220 } 221 } 222 223 free(devlist, M_TEMP); 224 225 return (0); 226 bad: 227 228 #if 0 229 device_printf(sc->dev, "hdspe is running\n"); 230 #endif 231 232 free(devlist, M_TEMP); 233 234 return (1); 235 } 236 237 static void 238 hdspe_start_audio(struct sc_info *sc) 239 { 240 241 sc->ctrl_register |= (HDSPE_AUDIO_INT_ENABLE | HDSPE_ENABLE); 242 hdspe_write_4(sc, HDSPE_CONTROL_REG, sc->ctrl_register); 243 } 244 245 static void 246 hdspe_stop_audio(struct sc_info *sc) 247 { 248 249 if (hdspe_running(sc) == 1) 250 return; 251 252 sc->ctrl_register &= ~(HDSPE_AUDIO_INT_ENABLE | HDSPE_ENABLE); 253 hdspe_write_4(sc, HDSPE_CONTROL_REG, sc->ctrl_register); 254 } 255 256 /* Multiplex / demultiplex: 2.0 <-> 2 x 1.0. */ 257 static void 258 buffer_copy(struct sc_chinfo *ch) 259 { 260 struct sc_pcminfo *scp; 261 struct sc_info *sc; 262 int ssize, dsize; 263 int src, dst; 264 int length; 265 int i; 266 267 scp = ch->parent; 268 sc = scp->sc; 269 270 length = sndbuf_getready(ch->buffer) / 271 (4 /* Bytes per sample. */ * 2 /* channels */); 272 273 if (ch->dir == PCMDIR_PLAY) { 274 src = sndbuf_getreadyptr(ch->buffer); 275 } else { 276 src = sndbuf_getfreeptr(ch->buffer); 277 } 278 279 src /= 4; /* Bytes per sample. */ 280 dst = src / 2; /* Destination buffer twice smaller. */ 281 282 ssize = ch->size / 4; 283 dsize = ch->size / 8; 284 285 /* 286 * Use two fragment buffer to avoid sound clipping. 287 */ 288 289 for (i = 0; i < sc->period * 2 /* fragments */; i++) { 290 if (ch->dir == PCMDIR_PLAY) { 291 sc->pbuf[dst + HDSPE_CHANBUF_SAMPLES * ch->lslot] = 292 ch->data[src]; 293 sc->pbuf[dst + HDSPE_CHANBUF_SAMPLES * ch->rslot] = 294 ch->data[src + 1]; 295 296 } else { 297 ch->data[src] = 298 sc->rbuf[dst + HDSPE_CHANBUF_SAMPLES * ch->lslot]; 299 ch->data[src+1] = 300 sc->rbuf[dst + HDSPE_CHANBUF_SAMPLES * ch->rslot]; 301 } 302 303 dst+=1; 304 dst %= dsize; 305 src+=2; 306 src %= ssize; 307 } 308 } 309 310 static int 311 clean(struct sc_chinfo *ch) 312 { 313 struct sc_pcminfo *scp; 314 struct sc_info *sc; 315 uint32_t *buf; 316 317 scp = ch->parent; 318 sc = scp->sc; 319 buf = sc->rbuf; 320 321 if (ch->dir == PCMDIR_PLAY) { 322 buf = sc->pbuf; 323 } 324 325 bzero(buf + HDSPE_CHANBUF_SAMPLES * ch->lslot, HDSPE_CHANBUF_SIZE); 326 bzero(buf + HDSPE_CHANBUF_SAMPLES * ch->rslot, HDSPE_CHANBUF_SIZE); 327 328 return (0); 329 } 330 331 332 /* Channel interface. */ 333 static void * 334 hdspechan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, 335 struct pcm_channel *c, int dir) 336 { 337 struct sc_pcminfo *scp; 338 struct sc_chinfo *ch; 339 struct sc_info *sc; 340 int num; 341 342 scp = devinfo; 343 sc = scp->sc; 344 345 snd_mtxlock(sc->lock); 346 num = scp->chnum; 347 348 ch = &scp->chan[num]; 349 ch->lslot = scp->hc->left; 350 ch->rslot = scp->hc->right; 351 ch->run = 0; 352 ch->lvol = 0; 353 ch->rvol = 0; 354 355 ch->size = HDSPE_CHANBUF_SIZE * 2 /* slots */; 356 ch->data = malloc(ch->size, M_HDSPE, M_NOWAIT); 357 358 ch->buffer = b; 359 ch->channel = c; 360 ch->parent = scp; 361 362 ch->dir = dir; 363 364 snd_mtxunlock(sc->lock); 365 366 if (sndbuf_setup(ch->buffer, ch->data, ch->size) != 0) { 367 device_printf(scp->dev, "Can't setup sndbuf.\n"); 368 return (NULL); 369 } 370 371 return (ch); 372 } 373 374 static int 375 hdspechan_trigger(kobj_t obj, void *data, int go) 376 { 377 struct sc_pcminfo *scp; 378 struct sc_chinfo *ch; 379 struct sc_info *sc; 380 381 ch = data; 382 scp = ch->parent; 383 sc = scp->sc; 384 385 snd_mtxlock(sc->lock); 386 switch (go) { 387 case PCMTRIG_START: 388 #if 0 389 device_printf(scp->dev, "hdspechan_trigger(): start\n"); 390 #endif 391 hdspechan_enable(ch, 1); 392 hdspechan_setgain(ch); 393 hdspe_start_audio(sc); 394 break; 395 396 case PCMTRIG_STOP: 397 case PCMTRIG_ABORT: 398 #if 0 399 device_printf(scp->dev, "hdspechan_trigger(): stop or abort\n"); 400 #endif 401 clean(ch); 402 hdspechan_enable(ch, 0); 403 hdspe_stop_audio(sc); 404 break; 405 406 case PCMTRIG_EMLDMAWR: 407 case PCMTRIG_EMLDMARD: 408 if(ch->run) 409 buffer_copy(ch); 410 break; 411 } 412 413 snd_mtxunlock(sc->lock); 414 415 return (0); 416 } 417 418 static uint32_t 419 hdspechan_getptr(kobj_t obj, void *data) 420 { 421 struct sc_pcminfo *scp; 422 struct sc_chinfo *ch; 423 struct sc_info *sc; 424 uint32_t ret, pos; 425 426 ch = data; 427 scp = ch->parent; 428 sc = scp->sc; 429 430 snd_mtxlock(sc->lock); 431 ret = hdspe_read_2(sc, HDSPE_STATUS_REG); 432 snd_mtxunlock(sc->lock); 433 434 pos = ret & HDSPE_BUF_POSITION_MASK; 435 pos *= 2; /* Hardbuf twice bigger. */ 436 437 return (pos); 438 } 439 440 static int 441 hdspechan_free(kobj_t obj, void *data) 442 { 443 struct sc_pcminfo *scp; 444 struct sc_chinfo *ch; 445 struct sc_info *sc; 446 447 ch = data; 448 scp = ch->parent; 449 sc = scp->sc; 450 451 #if 0 452 device_printf(scp->dev, "hdspechan_free()\n"); 453 #endif 454 455 snd_mtxlock(sc->lock); 456 if (ch->data != NULL) { 457 free(ch->data, M_HDSPE); 458 ch->data = NULL; 459 } 460 snd_mtxunlock(sc->lock); 461 462 return (0); 463 } 464 465 static int 466 hdspechan_setformat(kobj_t obj, void *data, uint32_t format) 467 { 468 struct sc_chinfo *ch; 469 470 ch = data; 471 472 #if 0 473 struct sc_pcminfo *scp = ch->parent; 474 device_printf(scp->dev, "hdspechan_setformat(%d)\n", format); 475 #endif 476 477 ch->format = format; 478 479 return (0); 480 } 481 482 static uint32_t 483 hdspechan_setspeed(kobj_t obj, void *data, uint32_t speed) 484 { 485 struct sc_pcminfo *scp; 486 struct hdspe_rate *hr; 487 struct sc_chinfo *ch; 488 struct sc_info *sc; 489 long long period; 490 int threshold; 491 int i; 492 493 ch = data; 494 scp = ch->parent; 495 sc = scp->sc; 496 hr = NULL; 497 498 #if 0 499 device_printf(scp->dev, "hdspechan_setspeed(%d)\n", speed); 500 #endif 501 502 if (hdspe_running(sc) == 1) 503 goto end; 504 505 /* First look for equal frequency. */ 506 for (i = 0; rate_map[i].speed != 0; i++) { 507 if (rate_map[i].speed == speed) 508 hr = &rate_map[i]; 509 } 510 511 /* If no match, just find nearest. */ 512 if (hr == NULL) { 513 for (i = 0; rate_map[i].speed != 0; i++) { 514 hr = &rate_map[i]; 515 threshold = hr->speed + ((rate_map[i + 1].speed != 0) ? 516 ((rate_map[i + 1].speed - hr->speed) >> 1) : 0); 517 if (speed < threshold) 518 break; 519 } 520 } 521 522 switch (sc->type) { 523 case RAYDAT: 524 case AIO: 525 period = HDSPE_FREQ_AIO; 526 break; 527 default: 528 /* Unsupported card. */ 529 goto end; 530 } 531 532 /* Write frequency on the device. */ 533 sc->ctrl_register &= ~HDSPE_FREQ_MASK; 534 sc->ctrl_register |= hr->reg; 535 hdspe_write_4(sc, HDSPE_CONTROL_REG, sc->ctrl_register); 536 537 speed = hr->speed; 538 if (speed > 96000) 539 speed /= 4; 540 else if (speed > 48000) 541 speed /= 2; 542 543 /* Set DDS value. */ 544 period /= speed; 545 hdspe_write_4(sc, HDSPE_FREQ_REG, period); 546 547 sc->speed = hr->speed; 548 end: 549 550 return (sc->speed); 551 } 552 553 static uint32_t 554 hdspechan_setblocksize(kobj_t obj, void *data, uint32_t blocksize) 555 { 556 struct hdspe_latency *hl; 557 struct sc_pcminfo *scp; 558 struct sc_chinfo *ch; 559 struct sc_info *sc; 560 int threshold; 561 int i; 562 563 ch = data; 564 scp = ch->parent; 565 sc = scp->sc; 566 hl = NULL; 567 568 #if 0 569 device_printf(scp->dev, "hdspechan_setblocksize(%d)\n", blocksize); 570 #endif 571 572 if (hdspe_running(sc) == 1) 573 goto end; 574 575 if (blocksize > HDSPE_LAT_BYTES_MAX) 576 blocksize = HDSPE_LAT_BYTES_MAX; 577 else if (blocksize < HDSPE_LAT_BYTES_MIN) 578 blocksize = HDSPE_LAT_BYTES_MIN; 579 580 blocksize /= 4 /* samples */; 581 582 /* First look for equal latency. */ 583 for (i = 0; latency_map[i].period != 0; i++) { 584 if (latency_map[i].period == blocksize) { 585 hl = &latency_map[i]; 586 } 587 } 588 589 /* If no match, just find nearest. */ 590 if (hl == NULL) { 591 for (i = 0; latency_map[i].period != 0; i++) { 592 hl = &latency_map[i]; 593 threshold = hl->period + ((latency_map[i + 1].period != 0) ? 594 ((latency_map[i + 1].period - hl->period) >> 1) : 0); 595 if (blocksize < threshold) 596 break; 597 } 598 } 599 600 snd_mtxlock(sc->lock); 601 sc->ctrl_register &= ~HDSPE_LAT_MASK; 602 sc->ctrl_register |= hdspe_encode_latency(hl->n); 603 hdspe_write_4(sc, HDSPE_CONTROL_REG, sc->ctrl_register); 604 sc->period = hl->period; 605 snd_mtxunlock(sc->lock); 606 607 #if 0 608 device_printf(scp->dev, "New period=%d\n", sc->period); 609 #endif 610 611 sndbuf_resize(ch->buffer, (HDSPE_CHANBUF_SIZE * 2) / (sc->period * 4), 612 (sc->period * 4)); 613 end: 614 615 return (sndbuf_getblksz(ch->buffer)); 616 } 617 618 static uint32_t hdspe_rfmt[] = { 619 SND_FORMAT(AFMT_S32_LE, 2, 0), 620 0 621 }; 622 623 static struct pcmchan_caps hdspe_rcaps = {32000, 192000, hdspe_rfmt, 0}; 624 625 static uint32_t hdspe_pfmt[] = { 626 SND_FORMAT(AFMT_S32_LE, 2, 0), 627 0 628 }; 629 630 static struct pcmchan_caps hdspe_pcaps = {32000, 192000, hdspe_pfmt, 0}; 631 632 static struct pcmchan_caps * 633 hdspechan_getcaps(kobj_t obj, void *data) 634 { 635 struct sc_chinfo *ch; 636 637 ch = data; 638 639 #if 0 640 struct sc_pcminfo *scl = ch->parent; 641 device_printf(scp->dev, "hdspechan_getcaps()\n"); 642 #endif 643 644 return ((ch->dir == PCMDIR_PLAY) ? 645 &hdspe_pcaps : &hdspe_rcaps); 646 } 647 648 static kobj_method_t hdspechan_methods[] = { 649 KOBJMETHOD(channel_init, hdspechan_init), 650 KOBJMETHOD(channel_free, hdspechan_free), 651 KOBJMETHOD(channel_setformat, hdspechan_setformat), 652 KOBJMETHOD(channel_setspeed, hdspechan_setspeed), 653 KOBJMETHOD(channel_setblocksize, hdspechan_setblocksize), 654 KOBJMETHOD(channel_trigger, hdspechan_trigger), 655 KOBJMETHOD(channel_getptr, hdspechan_getptr), 656 KOBJMETHOD(channel_getcaps, hdspechan_getcaps), 657 KOBJMETHOD_END 658 }; 659 CHANNEL_DECLARE(hdspechan); 660 661 662 static int 663 hdspe_pcm_probe(device_t dev) 664 { 665 666 #if 0 667 device_printf(dev,"hdspe_pcm_probe()\n"); 668 #endif 669 670 return (0); 671 } 672 673 static uint32_t 674 hdspe_pcm_intr(struct sc_pcminfo *scp) 675 { 676 struct sc_chinfo *ch; 677 struct sc_info *sc; 678 int i; 679 680 sc = scp->sc; 681 682 for (i = 0; i < scp->chnum; i++) { 683 ch = &scp->chan[i]; 684 snd_mtxunlock(sc->lock); 685 chn_intr(ch->channel); 686 snd_mtxlock(sc->lock); 687 } 688 689 return (0); 690 } 691 692 static int 693 hdspe_pcm_attach(device_t dev) 694 { 695 char status[SND_STATUSLEN]; 696 struct sc_pcminfo *scp; 697 char desc[64]; 698 int i, err; 699 700 scp = device_get_ivars(dev); 701 scp->ih = &hdspe_pcm_intr; 702 703 bzero(desc, sizeof(desc)); 704 snprintf(desc, sizeof(desc), "HDSPe AIO [%s]", scp->hc->descr); 705 device_set_desc_copy(dev, desc); 706 707 /* 708 * We don't register interrupt handler with snd_setup_intr 709 * in pcm device. Mark pcm device as MPSAFE manually. 710 */ 711 pcm_setflags(dev, pcm_getflags(dev) | SD_F_MPSAFE); 712 713 err = pcm_register(dev, scp, scp->hc->play, scp->hc->rec); 714 if (err) { 715 device_printf(dev, "Can't register pcm.\n"); 716 return (ENXIO); 717 } 718 719 scp->chnum = 0; 720 for (i = 0; i < scp->hc->play; i++) { 721 pcm_addchan(dev, PCMDIR_PLAY, &hdspechan_class, scp); 722 scp->chnum++; 723 } 724 725 for (i = 0; i < scp->hc->rec; i++) { 726 pcm_addchan(dev, PCMDIR_REC, &hdspechan_class, scp); 727 scp->chnum++; 728 } 729 730 snprintf(status, SND_STATUSLEN, "at io 0x%jx irq %jd %s", 731 rman_get_start(scp->sc->cs), 732 rman_get_start(scp->sc->irq), 733 PCM_KLDSTRING(snd_hdspe)); 734 pcm_setstatus(dev, status); 735 736 mixer_init(dev, &hdspemixer_class, scp); 737 738 return (0); 739 } 740 741 static int 742 hdspe_pcm_detach(device_t dev) 743 { 744 int err; 745 746 err = pcm_unregister(dev); 747 if (err) { 748 device_printf(dev, "Can't unregister device.\n"); 749 return (err); 750 } 751 752 return (0); 753 } 754 755 static device_method_t hdspe_pcm_methods[] = { 756 DEVMETHOD(device_probe, hdspe_pcm_probe), 757 DEVMETHOD(device_attach, hdspe_pcm_attach), 758 DEVMETHOD(device_detach, hdspe_pcm_detach), 759 { 0, 0 } 760 }; 761 762 static driver_t hdspe_pcm_driver = { 763 "pcm", 764 hdspe_pcm_methods, 765 PCM_SOFTC_SIZE, 766 }; 767 768 DRIVER_MODULE(snd_hdspe_pcm, hdspe, hdspe_pcm_driver, pcm_devclass, 0, 0); 769 MODULE_DEPEND(snd_hdspe, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER); 770 MODULE_VERSION(snd_hdspe, 1); 771