1 /*-
2 * Copyright (c) 2012 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: stable/9/sys/dev/sound/pci/hdspe-pcm.c 233165 2012-03-19 07:34:09Z mav $");
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
hdspe_hw_mixer(struct sc_chinfo * ch,unsigned int dst,unsigned int src,unsigned short data)83 hdspe_hw_mixer(struct sc_chinfo *ch, unsigned int dst,
84 unsigned int src, unsigned short data)
85 {
86 struct sc_pcminfo *scp = ch->parent;
87 struct sc_info *sc = scp->sc;
88 int offs = 0;
89
90 if (ch->dir == PCMDIR_PLAY)
91 offs = 64;
92
93 hdspe_write_4(sc, HDSPE_MIXER_BASE +
94 ((offs + src + 128 * dst) * sizeof(uint32_t)),
95 data & 0xFFFF);
96
97 return 0;
98 };
99
100 static int
hdspechan_setgain(struct sc_chinfo * ch)101 hdspechan_setgain(struct sc_chinfo *ch)
102 {
103
104 hdspe_hw_mixer(ch, ch->lslot, ch->lslot,
105 ch->lvol * HDSPE_MAX_GAIN / 100);
106 hdspe_hw_mixer(ch, ch->rslot, ch->rslot,
107 ch->rvol * HDSPE_MAX_GAIN / 100);
108
109 return 0;
110 }
111
112 static int
hdspemixer_init(struct snd_mixer * m)113 hdspemixer_init(struct snd_mixer *m)
114 {
115 struct sc_pcminfo *scp = mix_getdevinfo(m);
116 struct sc_info *sc = scp->sc;
117 int mask;
118
119 if (sc == NULL)
120 return -1;
121
122 mask = SOUND_MASK_PCM;
123
124 if (scp->hc->play)
125 mask |= SOUND_MASK_VOLUME;
126
127 if (scp->hc->rec)
128 mask |= SOUND_MASK_RECLEV;
129
130 snd_mtxlock(sc->lock);
131 pcm_setflags(scp->dev, pcm_getflags(scp->dev) | SD_F_SOFTPCMVOL);
132 mix_setdevs(m, mask);
133 snd_mtxunlock(sc->lock);
134
135 return 0;
136 }
137
138 static int
hdspemixer_set(struct snd_mixer * m,unsigned dev,unsigned left,unsigned right)139 hdspemixer_set(struct snd_mixer *m, unsigned dev,
140 unsigned left, unsigned right)
141 {
142 struct sc_pcminfo *scp = mix_getdevinfo(m);
143 struct sc_chinfo *ch;
144 int i;
145
146 #if 0
147 device_printf(scp->dev, "hdspemixer_set() %d %d\n",
148 left,right);
149 #endif
150
151 for (i = 0; i < scp->chnum; i++) {
152 ch = &scp->chan[i];
153 if ((dev == SOUND_MIXER_VOLUME && ch->dir == PCMDIR_PLAY) ||
154 (dev == SOUND_MIXER_RECLEV && ch->dir == PCMDIR_REC)) {
155 ch->lvol = left;
156 ch->rvol = right;
157 if (ch->run)
158 hdspechan_setgain(ch);
159 }
160 }
161
162 return 0;
163 }
164
165 static kobj_method_t hdspemixer_methods[] = {
166 KOBJMETHOD(mixer_init, hdspemixer_init),
167 KOBJMETHOD(mixer_set, hdspemixer_set),
168 KOBJMETHOD_END
169 };
170 MIXER_DECLARE(hdspemixer);
171
172 static void
hdspechan_enable(struct sc_chinfo * ch,int value)173 hdspechan_enable(struct sc_chinfo *ch, int value)
174 {
175 struct sc_pcminfo *scp = ch->parent;
176 struct sc_info *sc = scp->sc;
177 int reg;
178
179 if (ch->dir == PCMDIR_PLAY)
180 reg = HDSPE_OUT_ENABLE_BASE;
181 else
182 reg = HDSPE_IN_ENABLE_BASE;
183
184 ch->run = value;
185
186 hdspe_write_1(sc, reg + (4 * ch->lslot), value);
187 hdspe_write_1(sc, reg + (4 * ch->rslot), value);
188 }
189
190 static int
hdspe_running(struct sc_info * sc)191 hdspe_running(struct sc_info *sc)
192 {
193 struct sc_pcminfo *scp;
194 struct sc_chinfo *ch;
195 int i, j, devcount, err;
196 device_t *devlist;
197
198 if ((err = device_get_children(sc->dev, &devlist, &devcount)) != 0)
199 goto bad;
200
201 for (i = 0; i < devcount; i++) {
202 scp = device_get_ivars(devlist[i]);
203 for (j = 0; j < scp->chnum; j++) {
204 ch = &scp->chan[j];
205 if (ch->run)
206 goto bad;
207 }
208 }
209
210 return 0;
211 bad:
212
213 #if 0
214 device_printf(sc->dev,"hdspe is running\n");
215 #endif
216
217 return 1;
218 }
219
220 static void
hdspe_start_audio(struct sc_info * sc)221 hdspe_start_audio(struct sc_info *sc)
222 {
223
224 sc->ctrl_register |= (HDSPE_AUDIO_INT_ENABLE | HDSPE_ENABLE);
225 hdspe_write_4(sc, HDSPE_CONTROL_REG, sc->ctrl_register);
226 }
227
228 static void
hdspe_stop_audio(struct sc_info * sc)229 hdspe_stop_audio(struct sc_info *sc)
230 {
231
232 if (hdspe_running(sc) == 1)
233 return;
234
235 sc->ctrl_register &= ~(HDSPE_AUDIO_INT_ENABLE | HDSPE_ENABLE);
236 hdspe_write_4(sc, HDSPE_CONTROL_REG, sc->ctrl_register);
237 }
238
239 /* Multiplex / demultiplex: 2.0 <-> 2 x 1.0. */
240 static void
buffer_copy(struct sc_chinfo * ch)241 buffer_copy(struct sc_chinfo *ch)
242 {
243 struct sc_pcminfo *scp = ch->parent;
244 struct sc_info *sc = scp->sc;
245 int length,src,dst;
246 int ssize, dsize;
247 int i;
248
249 length = sndbuf_getready(ch->buffer) /
250 (4 /* Bytes per sample. */ * 2 /* channels */);
251
252 if (ch->dir == PCMDIR_PLAY) {
253 src = sndbuf_getreadyptr(ch->buffer);
254 } else {
255 src = sndbuf_getfreeptr(ch->buffer);
256 }
257
258 src /= 4; /* Bytes per sample. */
259 dst = src / 2; /* Destination buffer twice smaller. */
260
261 ssize = ch->size / 4;
262 dsize = ch->size / 8;
263
264 /*
265 * Use two fragment buffer to avoid sound clipping.
266 */
267
268 for (i = 0; i < sc->period * 2 /* fragments */; i++) {
269 if (ch->dir == PCMDIR_PLAY) {
270 sc->pbuf[dst + HDSPE_CHANBUF_SAMPLES * ch->lslot] =
271 ch->data[src];
272 sc->pbuf[dst + HDSPE_CHANBUF_SAMPLES * ch->rslot] =
273 ch->data[src + 1];
274
275 } else {
276 ch->data[src] =
277 sc->rbuf[dst + HDSPE_CHANBUF_SAMPLES * ch->lslot];
278 ch->data[src+1] =
279 sc->rbuf[dst + HDSPE_CHANBUF_SAMPLES * ch->rslot];
280 }
281
282 dst+=1;
283 dst %= dsize;
284 src+=2;
285 src %= ssize;
286 }
287 }
288
289 static int
clean(struct sc_chinfo * ch)290 clean(struct sc_chinfo *ch){
291 struct sc_pcminfo *scp = ch->parent;
292 struct sc_info *sc = scp->sc;
293 uint32_t *buf = sc->rbuf;
294
295 if (ch->dir == PCMDIR_PLAY) {
296 buf = sc->pbuf;
297 }
298
299 bzero(buf + HDSPE_CHANBUF_SAMPLES * ch->lslot, HDSPE_CHANBUF_SIZE);
300 bzero(buf + HDSPE_CHANBUF_SAMPLES * ch->rslot, HDSPE_CHANBUF_SIZE);
301
302 return 0;
303 }
304
305
306 /* Channel interface. */
307 static void *
hdspechan_init(kobj_t obj,void * devinfo,struct snd_dbuf * b,struct pcm_channel * c,int dir)308 hdspechan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b,
309 struct pcm_channel *c, int dir)
310 {
311 struct sc_pcminfo *scp = devinfo;
312 struct sc_info *sc = scp->sc;
313 struct sc_chinfo *ch;
314 int num;
315
316 snd_mtxlock(sc->lock);
317 num = scp->chnum;
318
319 ch = &scp->chan[num];
320 ch->lslot = scp->hc->left;
321 ch->rslot = scp->hc->right;
322 ch->run = 0;
323 ch->lvol = 0;
324 ch->rvol = 0;
325
326 ch->size = HDSPE_CHANBUF_SIZE * 2 /* slots */;
327 ch->data = malloc(ch->size, M_HDSPE, M_NOWAIT);
328
329 ch->buffer = b;
330 ch->channel = c;
331 ch->parent = scp;
332
333 ch->dir = dir;
334
335 snd_mtxunlock(sc->lock);
336
337 if (sndbuf_setup(ch->buffer, ch->data, ch->size) != 0) {
338 device_printf(scp->dev, "Can't setup sndbuf.\n");
339 return NULL;
340 }
341
342 return ch;
343 }
344
345 static int
hdspechan_trigger(kobj_t obj,void * data,int go)346 hdspechan_trigger(kobj_t obj, void *data, int go)
347 {
348 struct sc_chinfo *ch = data;
349 struct sc_pcminfo *scp = ch->parent;
350 struct sc_info *sc = scp->sc;
351
352 snd_mtxlock(sc->lock);
353 switch (go) {
354 case PCMTRIG_START:
355 #if 0
356 device_printf(scp->dev, "hdspechan_trigger(): start\n");
357 #endif
358 hdspechan_enable(ch, 1);
359 hdspechan_setgain(ch);
360 hdspe_start_audio(sc);
361 break;
362
363 case PCMTRIG_STOP:
364 case PCMTRIG_ABORT:
365 #if 0
366 device_printf(scp->dev, "hdspechan_trigger(): stop or abort\n");
367 #endif
368 clean(ch);
369 hdspechan_enable(ch, 0);
370 hdspe_stop_audio(sc);
371 break;
372
373 case PCMTRIG_EMLDMAWR:
374 case PCMTRIG_EMLDMARD:
375 if(ch->run)
376 buffer_copy(ch);
377 break;
378 }
379
380 snd_mtxunlock(sc->lock);
381
382 return 0;
383 }
384
385 static uint32_t
hdspechan_getptr(kobj_t obj,void * data)386 hdspechan_getptr(kobj_t obj, void *data)
387 {
388 struct sc_chinfo *ch = data;
389 struct sc_pcminfo *scp = ch->parent;
390 struct sc_info *sc = scp->sc;
391 uint32_t ret, pos;
392
393 snd_mtxlock(sc->lock);
394 ret = hdspe_read_2(sc, HDSPE_STATUS_REG);
395 snd_mtxunlock(sc->lock);
396
397 pos = ret & HDSPE_BUF_POSITION_MASK;
398 pos *= 2; /* Hardbuf twice bigger. */
399
400 return pos;
401 }
402
403 static int
hdspechan_free(kobj_t obj,void * data)404 hdspechan_free(kobj_t obj, void *data)
405 {
406 struct sc_chinfo *ch = data;
407 struct sc_pcminfo *scp = ch->parent;
408 struct sc_info *sc = scp->sc;
409
410 #if 0
411 device_printf(scp->dev, "hdspechan_free()\n");
412 #endif
413 snd_mtxlock(sc->lock);
414 if (ch->data != NULL) {
415 free(ch->data, M_HDSPE);
416 ch->data = NULL;
417 }
418 snd_mtxunlock(sc->lock);
419
420 return 0;
421 }
422
423 static int
hdspechan_setformat(kobj_t obj,void * data,uint32_t format)424 hdspechan_setformat(kobj_t obj, void *data, uint32_t format)
425 {
426 struct sc_chinfo *ch = data;
427
428 #if 0
429 struct sc_pcminfo *scp = ch->parent;
430 device_printf(scp->dev, "hdspechan_setformat(%d)\n", format);
431 #endif
432
433 ch->format = format;
434
435 return 0;
436 }
437
438 static uint32_t
hdspechan_setspeed(kobj_t obj,void * data,uint32_t speed)439 hdspechan_setspeed(kobj_t obj, void *data, uint32_t speed)
440 {
441 struct sc_chinfo *ch = data;
442 struct sc_pcminfo *scp = ch->parent;
443 struct sc_info *sc = scp->sc;
444 struct hdspe_rate *hr = NULL;
445 long long period;
446 int threshold;
447 int i;
448
449 #if 0
450 device_printf(scp->dev, "hdspechan_setspeed(%d)\n", speed);
451 #endif
452
453 if (hdspe_running(sc) == 1)
454 goto end;
455
456 /* First look for equal frequency. */
457 for (i = 0; rate_map[i].speed != 0; i++) {
458 if (rate_map[i].speed == speed)
459 hr = &rate_map[i];
460 }
461
462 /* If no match, just find nearest. */
463 if (hr == NULL) {
464 for (i = 0; rate_map[i].speed != 0; i++) {
465 hr = &rate_map[i];
466 threshold = hr->speed + ((rate_map[i + 1].speed != 0) ?
467 ((rate_map[i + 1].speed - hr->speed) >> 1) : 0);
468 if (speed < threshold)
469 break;
470 }
471 }
472
473 switch (sc->type) {
474 case RAYDAT:
475 case AIO:
476 period = HDSPE_FREQ_AIO;
477 break;
478 default:
479 /* Unsupported card. */
480 goto end;
481 }
482
483 /* Write frequency on the device. */
484 sc->ctrl_register &= ~HDSPE_FREQ_MASK;
485 sc->ctrl_register |= hr->reg;
486 hdspe_write_4(sc, HDSPE_CONTROL_REG, sc->ctrl_register);
487
488 speed = hr->speed;
489 if (speed > 96000)
490 speed /= 4;
491 else if (speed > 48000)
492 speed /= 2;
493
494 /* Set DDS value. */
495 period /= speed;
496 hdspe_write_4(sc, HDSPE_FREQ_REG, period);
497
498 sc->speed = hr->speed;
499 end:
500 return sc->speed;
501 }
502
503 static uint32_t
hdspechan_setblocksize(kobj_t obj,void * data,uint32_t blocksize)504 hdspechan_setblocksize(kobj_t obj, void *data, uint32_t blocksize)
505 {
506 struct sc_chinfo *ch = data;
507 struct sc_pcminfo *scp = ch->parent;
508 struct sc_info *sc = scp->sc;
509 struct hdspe_latency *hl = NULL;
510 int threshold;
511 int i;
512
513 #if 0
514 device_printf(scp->dev, "hdspechan_setblocksize(%d)\n", blocksize);
515 #endif
516
517 if (hdspe_running(sc) == 1)
518 goto end;
519
520 if (blocksize > HDSPE_LAT_BYTES_MAX)
521 blocksize = HDSPE_LAT_BYTES_MAX;
522 else if (blocksize < HDSPE_LAT_BYTES_MIN)
523 blocksize = HDSPE_LAT_BYTES_MIN;
524
525 blocksize /= 4 /* samples */;
526
527 /* First look for equal latency. */
528 for (i = 0; latency_map[i].period != 0; i++) {
529 if (latency_map[i].period == blocksize) {
530 hl = &latency_map[i];
531 }
532 }
533
534 /* If no match, just find nearest. */
535 if (hl == NULL) {
536 for (i = 0; latency_map[i].period != 0; i++) {
537 hl = &latency_map[i];
538 threshold = hl->period + ((latency_map[i + 1].period != 0) ?
539 ((latency_map[i + 1].period - hl->period) >> 1) : 0);
540 if (blocksize < threshold)
541 break;
542 }
543 }
544
545 snd_mtxlock(sc->lock);
546 sc->ctrl_register &= ~HDSPE_LAT_MASK;
547 sc->ctrl_register |= hdspe_encode_latency(hl->n);
548 hdspe_write_4(sc, HDSPE_CONTROL_REG, sc->ctrl_register);
549 sc->period = hl->period;
550 snd_mtxunlock(sc->lock);
551
552 #if 0
553 device_printf(scp->dev, "New period=%d\n", sc->period);
554 #endif
555
556 sndbuf_resize(ch->buffer, (HDSPE_CHANBUF_SIZE * 2) / (sc->period * 4),
557 (sc->period * 4));
558 end:
559 return sndbuf_getblksz(ch->buffer);
560 }
561
562 static uint32_t hdspe_rfmt[] = {
563 SND_FORMAT(AFMT_S32_LE, 2, 0),
564 0
565 };
566
567 static struct pcmchan_caps hdspe_rcaps = {32000, 192000, hdspe_rfmt, 0};
568
569 static uint32_t hdspe_pfmt[] = {
570 SND_FORMAT(AFMT_S32_LE, 2, 0),
571 0
572 };
573
574 static struct pcmchan_caps hdspe_pcaps = {32000, 192000, hdspe_pfmt, 0};
575
576 static struct pcmchan_caps *
hdspechan_getcaps(kobj_t obj,void * data)577 hdspechan_getcaps(kobj_t obj, void *data)
578 {
579 struct sc_chinfo *ch = data;
580
581 #if 0
582 struct sc_pcminfo *scl = ch->parent;
583 device_printf(scp->dev, "hdspechan_getcaps()\n");
584 #endif
585
586 return (ch->dir == PCMDIR_PLAY) ?
587 &hdspe_pcaps : &hdspe_rcaps;
588 }
589
590 static kobj_method_t hdspechan_methods[] = {
591 KOBJMETHOD(channel_init, hdspechan_init),
592 KOBJMETHOD(channel_free, hdspechan_free),
593 KOBJMETHOD(channel_setformat, hdspechan_setformat),
594 KOBJMETHOD(channel_setspeed, hdspechan_setspeed),
595 KOBJMETHOD(channel_setblocksize, hdspechan_setblocksize),
596 KOBJMETHOD(channel_trigger, hdspechan_trigger),
597 KOBJMETHOD(channel_getptr, hdspechan_getptr),
598 KOBJMETHOD(channel_getcaps, hdspechan_getcaps),
599 KOBJMETHOD_END
600 };
601 CHANNEL_DECLARE(hdspechan);
602
603
604 static int
hdspe_pcm_probe(device_t dev)605 hdspe_pcm_probe(device_t dev)
606 {
607
608 #if 0
609 device_printf(dev,"hdspe_pcm_probe()\n");
610 #endif
611
612 return 0;
613 }
614
615 static uint32_t
hdspe_pcm_intr(struct sc_pcminfo * scp)616 hdspe_pcm_intr(struct sc_pcminfo *scp) {
617 struct sc_chinfo *ch;
618 struct sc_info *sc = scp->sc;
619 int i;
620
621 for (i = 0; i < scp->chnum; i++) {
622 ch = &scp->chan[i];
623 snd_mtxunlock(sc->lock);
624 chn_intr(ch->channel);
625 snd_mtxlock(sc->lock);
626 }
627
628 return 0;
629 }
630
631 static int
hdspe_pcm_attach(device_t dev)632 hdspe_pcm_attach(device_t dev)
633 {
634 struct sc_pcminfo *scp;
635 char status[SND_STATUSLEN];
636 char desc[64];
637 int i, err;
638
639 scp = device_get_ivars(dev);
640 scp->ih = &hdspe_pcm_intr;
641
642 bzero(desc, sizeof(desc));
643 snprintf(desc, sizeof(desc), "HDSPe AIO [%s]", scp->hc->descr);
644 device_set_desc_copy(dev, desc);
645
646 /*
647 * We don't register interrupt handler with snd_setup_intr
648 * in pcm device. Mark pcm device as MPSAFE manually.
649 */
650 pcm_setflags(dev, pcm_getflags(dev) | SD_F_MPSAFE);
651
652 err = pcm_register(dev, scp, scp->hc->play, scp->hc->rec);
653 if (err) {
654 device_printf(dev, "Can't register pcm.\n");
655 return ENXIO;
656 }
657
658 scp->chnum = 0;
659 for (i = 0; i < scp->hc->play; i++) {
660 pcm_addchan(dev, PCMDIR_PLAY, &hdspechan_class, scp);
661 scp->chnum++;
662 }
663
664 for (i = 0; i < scp->hc->rec; i++) {
665 pcm_addchan(dev, PCMDIR_REC, &hdspechan_class, scp);
666 scp->chnum++;
667 }
668
669 snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld %s",
670 rman_get_start(scp->sc->cs),
671 rman_get_start(scp->sc->irq),
672 PCM_KLDSTRING(snd_hdspe));
673 pcm_setstatus(dev, status);
674
675 mixer_init(dev, &hdspemixer_class, scp);
676
677 return 0;
678 }
679
680 static int
hdspe_pcm_detach(device_t dev)681 hdspe_pcm_detach(device_t dev)
682 {
683 int err;
684
685 err = pcm_unregister(dev);
686 if (err) {
687 device_printf(dev, "Can't unregister device.\n");
688 return err;
689 }
690
691 return 0;
692 }
693
694 static device_method_t hdspe_pcm_methods[] = {
695 DEVMETHOD(device_probe, hdspe_pcm_probe),
696 DEVMETHOD(device_attach, hdspe_pcm_attach),
697 DEVMETHOD(device_detach, hdspe_pcm_detach),
698 { 0, 0 }
699 };
700
701 static driver_t hdspe_pcm_driver = {
702 "pcm",
703 hdspe_pcm_methods,
704 PCM_SOFTC_SIZE,
705 };
706
707 DRIVER_MODULE(snd_hdspe_pcm, hdspe, hdspe_pcm_driver, pcm_devclass, 0, 0);
708 MODULE_DEPEND(snd_hdspe, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
709 MODULE_VERSION(snd_hdspe, 1);
710