2 * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
3 * (C) 1997 Luigi Rizzo (luigi@iet.unipi.it)
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/dev/sound/pcm/sound.c,v 1.93.2.5 2007/06/04 09:06:05 ariff Exp $
28 * $DragonFly: src/sys/dev/sound/pcm/sound.c,v 1.12 2008/01/06 16:55:51 swildner Exp $
31 #include <dev/sound/pcm/sound.h>
32 #include <dev/sound/pcm/vchan.h>
33 #include <dev/sound/pcm/dsp.h>
34 #include <sys/sysctl.h>
36 #include "feeder_if.h"
38 SND_DECLARE_FILE("$DragonFly: src/sys/dev/sound/pcm/sound.c,v 1.12 2008/01/06 16:55:51 swildner Exp $");
40 devclass_t pcm_devclass;
42 int pcm_veto_load = 1;
46 TUNABLE_INT("hw.snd.unit", &snd_unit);
49 int snd_maxautovchans = 4;
50 TUNABLE_INT("hw.snd.maxautovchans", &snd_maxautovchans);
52 SYSCTL_NODE(_hw, OID_AUTO, snd, CTLFLAG_RD, 0, "Sound driver");
54 static int sndstat_prepare_pcm(struct sbuf *s, device_t dev, int verbose);
56 struct sysctl_ctx_list *
57 snd_sysctl_tree(device_t dev)
59 struct snddev_info *d = device_get_softc(dev);
61 return &d->sysctl_tree;
65 snd_sysctl_tree_top(device_t dev)
67 struct snddev_info *d = device_get_softc(dev);
69 return d->sysctl_tree_top;
73 snd_mtxcreate(const char *desc, const char *type)
78 m = kmalloc(sizeof(*m), M_DEVBUF, M_WAITOK | M_ZERO);
79 lockinit(m, __DECONST(char *, type), 0, LK_CANRECURSE);
82 return (void *)0xcafebabe;
97 snd_mtxassert(void *m)
112 lockmgr(lk, LK_EXCLUSIVE | LK_RETRY);
117 snd_mtxunlock(void *m)
122 lockmgr(lk, LK_RELEASE);
127 snd_mtxsleep(void *addr, sndlock_t lock, int flags, const char *wmesg, int timo)
132 tsleep_interlock(addr);
134 r = tsleep(addr, flags, wmesg, timo);
143 snd_setup_intr(device_t dev, struct resource *res, int flags, driver_intr_t hand, void *param, void **cookiep)
146 flags &= INTR_MPSAFE;
147 flags |= INTR_TYPE_AV;
149 flags = INTR_TYPE_AV;
151 return bus_setup_intr(dev, res, flags, hand, param, cookiep, NULL);
154 #ifndef PCM_DEBUG_MTX
156 pcm_lock(struct snddev_info *d)
158 snd_mtxlock(d->lock);
162 pcm_unlock(struct snddev_info *d)
164 snd_mtxunlock(d->lock);
169 pcm_getfakechan(struct snddev_info *d)
175 pcm_setvchans(struct snddev_info *d, int newcnt)
177 struct snddev_channel *sce = NULL;
178 struct pcm_channel *c = NULL;
179 int err = 0, vcnt, dcnt, i;
183 if (!(d->flags & SD_F_AUTOVCHAN)) {
188 vcnt = d->vchancount;
189 dcnt = d->playcount + d->reccount;
191 if (newcnt < 0 || (dcnt + newcnt) > (PCMMAXCHAN + 1)) {
199 /* add new vchans - find a parent channel first */
200 SLIST_FOREACH(sce, &d->channels, link) {
203 if (c->direction == PCMDIR_PLAY &&
204 ((c->flags & CHN_F_HAS_VCHAN) ||
206 !(c->flags & (CHN_F_BUSY | CHN_F_VIRTUAL)))))
213 c->flags |= CHN_F_BUSY;
214 while (err == 0 && newcnt > vcnt) {
215 if (dcnt > PCMMAXCHAN) {
216 device_printf(d->dev, "%s: Maximum channel reached.\n", __func__);
219 err = vchan_create(c);
223 } else if (err == E2BIG && newcnt > vcnt)
224 device_printf(d->dev, "%s: err=%d Maximum channel reached.\n", __func__, err);
227 c->flags &= ~CHN_F_BUSY;
229 } else if (newcnt < vcnt) {
230 #define ORPHAN_CDEVT(cdevt) \
231 ((cdevt) == NULL || ((cdevt)->si_drv1 == NULL && \
232 (cdevt)->si_drv2 == NULL))
233 while (err == 0 && newcnt < vcnt) {
235 SLIST_FOREACH(sce, &d->channels, link) {
238 if (c->direction == PCMDIR_PLAY &&
239 (c->flags & CHN_F_VIRTUAL) &&
241 if (!(c->flags & CHN_F_BUSY) &&
242 ORPHAN_CDEVT(sce->dsp_devt) &&
243 ORPHAN_CDEVT(sce->dspW_devt) &&
244 ORPHAN_CDEVT(sce->audio_devt) &&
245 ORPHAN_CDEVT(sce->dspr_devt))
248 * Either we're busy, or our cdev
249 * has been stolen by dsp_clone().
250 * Skip, and increase newcnt.
252 if (!(c->flags & CHN_F_BUSY))
253 device_printf(d->dev,
254 "%s: <%s> somebody steal my cdev!\n",
265 err = vchan_destroy(c);
269 device_printf(d->dev,
270 "%s: WARNING: vchan_destroy() failed!",
280 /* return error status and a locked channel */
282 pcm_chnalloc(struct snddev_info *d, struct pcm_channel **ch, int direction,
283 pid_t pid, int chnum)
285 struct pcm_channel *c;
286 struct snddev_channel *sce;
291 /* scan for a free channel */
292 SLIST_FOREACH(sce, &d->channels, link) {
295 if (c->direction == direction && !(c->flags & CHN_F_BUSY)) {
296 if (chnum < 0 || sce->chan_num == chnum) {
297 c->flags |= CHN_F_BUSY;
303 if (sce->chan_num == chnum) {
304 if (c->direction != direction)
306 else if (c->flags & CHN_F_BUSY)
312 } else if (c->direction == direction && (c->flags & CHN_F_BUSY))
317 /* no channel available */
318 if (chnum == -1 && direction == PCMDIR_PLAY && d->vchancount > 0 &&
319 d->vchancount < snd_maxautovchans &&
320 d->devcount <= PCMMAXCHAN) {
321 err = pcm_setvchans(d, d->vchancount + 1);
331 /* release a locked channel and unlock it */
333 pcm_chnrelease(struct pcm_channel *c)
336 c->flags &= ~CHN_F_BUSY;
343 pcm_chnref(struct pcm_channel *c, int ref)
354 pcm_inprog(struct snddev_info *d, int delta)
370 pcm_setmaxautovchans(struct snddev_info *d, int num)
372 if (num > 0 && d->vchancount == 0)
374 else if (num == 0 && d->vchancount > 0)
380 sysctl_hw_snd_unit(SYSCTL_HANDLER_ARGS)
382 struct snddev_info *d;
386 error = sysctl_handle_int(oidp, &unit, sizeof(unit), req);
387 if (error == 0 && req->newptr != NULL) {
388 if (unit < 0 || (pcm_devclass != NULL &&
389 unit >= devclass_get_maxunit(pcm_devclass)))
391 d = devclass_get_softc(pcm_devclass, unit);
392 if (d == NULL || SLIST_EMPTY(&d->channels))
398 SYSCTL_PROC(_hw_snd, OID_AUTO, unit, CTLTYPE_INT | CTLFLAG_RW,
399 0, sizeof(int), sysctl_hw_snd_unit, "I", "");
403 sysctl_hw_snd_maxautovchans(SYSCTL_HANDLER_ARGS)
405 struct snddev_info *d;
408 v = snd_maxautovchans;
409 error = sysctl_handle_int(oidp, &v, sizeof(v), req);
410 if (error == 0 && req->newptr != NULL) {
411 if (v < 0 || v > PCMMAXCHAN)
413 if (pcm_devclass != NULL && v != snd_maxautovchans) {
414 for (i = 0; i < devclass_get_maxunit(pcm_devclass); i++) {
415 d = devclass_get_softc(pcm_devclass, i);
418 pcm_setmaxautovchans(d, v);
421 snd_maxautovchans = v;
425 SYSCTL_PROC(_hw_snd, OID_AUTO, maxautovchans, CTLTYPE_INT | CTLFLAG_RW,
426 0, sizeof(int), sysctl_hw_snd_maxautovchans, "I", "");
429 pcm_chn_create(struct snddev_info *d, struct pcm_channel *parent, kobj_class_t cls, int dir, void *devinfo)
431 struct snddev_channel *sce;
432 struct pcm_channel *ch, *c;
434 uint32_t flsearch = 0;
435 int direction, err, rpnum, *pnum;
440 direction = PCMDIR_PLAY;
441 pnum = &d->playcount;
446 direction = PCMDIR_REC;
452 direction = PCMDIR_PLAY;
453 pnum = &d->vchancount;
454 flsearch = CHN_F_VIRTUAL;
461 ch = kmalloc(sizeof(*ch), M_DEVBUF, M_WAITOK | M_ZERO);
463 ch->methods = kobj_create(cls, M_DEVBUF, M_WAITOK);
470 snd_mtxlock(d->lock);
473 SLIST_FOREACH(sce, &d->channels, link) {
475 if (direction != c->direction ||
476 (c->flags & CHN_F_VIRTUAL) != flsearch)
478 if (ch->num == c->num)
482 device_printf(d->dev,
483 "%s: %s channel numbering screwed (Expect: %d, Got: %d)\n",
484 __func__, dirs, ch->num, c->num);
486 goto retry_num_search;
490 goto retry_num_search_out;
493 SLIST_FOREACH(sce, &d->channels, link) {
495 if (direction != c->direction ||
496 (c->flags & CHN_F_VIRTUAL) != flsearch)
498 if (ch->num == c->num) {
500 goto retry_num_search;
504 retry_num_search_out:
505 if (*pnum != rpnum) {
506 device_printf(d->dev,
507 "%s: WARNING: pnum screwed : dirs=%s, pnum=%d, rpnum=%d\n",
508 __func__, dirs, *pnum, rpnum);
512 snd_mtxunlock(d->lock);
515 ch->parentsnddev = d;
516 ch->parentchannel = parent;
518 ksnprintf(ch->name, CHN_NAMELEN, "%s:%s:%d", device_get_nameunit(ch->dev), dirs, ch->num);
520 err = chn_init(ch, devinfo, dir, direction);
522 device_printf(d->dev, "chn_init(%s) failed: err = %d\n", ch->name, err);
523 kobj_delete(ch->methods, M_DEVBUF);
525 snd_mtxlock(d->lock);
527 snd_mtxunlock(d->lock);
536 pcm_chn_iterate(struct snddev_info *d, void **cookie)
538 struct snddev_channel **last = (struct snddev_channel **)cookie;
541 *last = SLIST_FIRST(&d->channels);
543 *last = SLIST_NEXT(*last, link);
548 return (*last)->channel;
552 pcm_chn_destroy(struct pcm_channel *ch)
554 struct snddev_info *d;
557 d = ch->parentsnddev;
560 device_printf(d->dev, "chn_kill(%s) failed, err = %d\n", ch->name, err);
564 kobj_delete(ch->methods, M_DEVBUF);
571 pcm_chn_add(struct snddev_info *d, struct pcm_channel *ch)
573 struct snddev_channel *sce, *tmp, *after;
575 int device = device_get_unit(d->dev);
579 * Note it's confusing nomenclature.
581 * device -> pcm_device
582 * unit -> pcm_channel
583 * channel -> snddev_channel
588 sce = kmalloc(sizeof(*sce), M_DEVBUF, M_WAITOK | M_ZERO);
590 snd_mtxlock(d->lock);
595 SLIST_FOREACH(tmp, &d->channels, link) {
596 if (sce->chan_num == tmp->chan_num)
600 device_printf(d->dev,
601 "%s: cdev numbering screwed (Expect: %d, Got: %d)\n",
602 __func__, sce->chan_num, tmp->chan_num);
604 goto retry_chan_num_search;
609 goto retry_chan_num_search_out;
610 retry_chan_num_search:
612 * Look for possible channel numbering collision. This may not
613 * be optimized, but it will ensure that no collision occured.
614 * Can be considered cheap since none of the locking/unlocking
615 * operations involved.
619 SLIST_FOREACH(tmp, &d->channels, link) {
620 if (sce->chan_num == tmp->chan_num) {
622 goto retry_chan_num_search;
624 if (sce->chan_num > tmp->chan_num)
628 retry_chan_num_search_out:
630 * Don't overflow PCMMKMINOR / PCMMAXCHAN.
632 if (sce->chan_num > PCMMAXCHAN) {
633 snd_mtxunlock(d->lock);
634 device_printf(d->dev,
635 "%s: WARNING: sce->chan_num overflow! (%d)\n",
636 __func__, sce->chan_num);
637 kfree(sce, M_DEVBUF);
640 if (d->devcount != rdevcount) {
641 device_printf(d->dev,
642 "%s: WARNING: devcount screwed! d->devcount=%u, rdevcount=%u\n",
643 __func__, d->devcount, rdevcount);
644 d->devcount = rdevcount;
648 SLIST_INSERT_HEAD(&d->channels, sce, link);
650 SLIST_INSERT_AFTER(after, sce, link);
655 SLIST_FOREACH(tmp, &d->channels, link) {
656 if (cnum != tmp->chan_num)
657 device_printf(d->dev,
658 "%s: WARNING: inconsistent cdev numbering! (Expect: %d, Got: %d)\n",
659 __func__, cnum, tmp->chan_num);
665 namelen = strlen(ch->name);
666 if ((CHN_NAMELEN - namelen) > 10) { /* ":dspXX.YYY" */
667 ksnprintf(ch->name + namelen,
668 CHN_NAMELEN - namelen, ":dsp%d.%d",
669 device, sce->chan_num);
671 snd_mtxunlock(d->lock);
674 * I will revisit these someday, and nuke it mercilessly..
676 dev_ops_add(&dsp_cdevsw,
677 PCMMKMINOR(-1, -1, 0),
678 PCMMKMINOR(device, SND_DEV_DSP, sce->chan_num));
679 sce->dsp_devt = make_dev(&dsp_cdevsw,
680 PCMMKMINOR(device, SND_DEV_DSP, sce->chan_num),
681 UID_ROOT, GID_WHEEL, 0666, "dsp%d.%d",
682 device, sce->chan_num);
683 reference_dev(sce->dsp_devt);
685 dev_ops_add(&dsp_cdevsw,
686 PCMMKMINOR(-1, -1, 0),
687 PCMMKMINOR(device, SND_DEV_DSP16, sce->chan_num));
688 sce->dspW_devt = make_dev(&dsp_cdevsw,
689 PCMMKMINOR(device, SND_DEV_DSP16, sce->chan_num),
690 UID_ROOT, GID_WHEEL, 0666, "dspW%d.%d",
691 device, sce->chan_num);
692 reference_dev(sce->dspW_devt);
695 dev_ops_add(&dsp_cdevsw,
696 PCMMKMINOR(-1, -1, 0),
697 PCMMKMINOR(device, SND_DEV_DSP, sce->chan_num));
698 sce->audio_devt = make_dev(&dsp_cdevsw,
699 PCMMKMINOR(device, SND_DEV_DSP, sce->chan_num),
700 UID_ROOT, GID_WHEEL, 0666, "audio%d.%d",
701 device, sce->chan_num);
703 sce->audio_devt = sce->dsp_devt;
704 reference_dev(sce->audio_devt);
706 if (ch->direction == PCMDIR_REC) {
707 dev_ops_add(&dsp_cdevsw,
708 PCMMKMINOR(-1, -1, 0),
709 PCMMKMINOR(device, SND_DEV_DSPREC, sce->chan_num));
710 sce->dspr_devt = make_dev(&dsp_cdevsw,
711 PCMMKMINOR(device, SND_DEV_DSPREC,
712 sce->chan_num), UID_ROOT, GID_WHEEL,
713 0666, "dspr%d.%d", device, sce->chan_num);
714 reference_dev(sce->dspr_devt);
721 pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch)
723 struct snddev_channel *sce;
728 if (!mtx_owned(d->lock)) {
729 snd_mtxlock(d->lock);
734 SLIST_FOREACH(sce, &d->channels, link) {
735 if (sce->channel == ch)
740 snd_mtxunlock(d->lock);
744 SLIST_REMOVE(&d->channels, sce, snddev_channel, link);
746 if (ch->flags & CHN_F_VIRTUAL)
748 else if (ch->direction == PCMDIR_REC)
755 snd_mtxunlock(d->lock);
757 kfree(sce, M_DEVBUF);
763 pcm_addchan(device_t dev, int dir, kobj_class_t cls, void *devinfo)
765 struct snddev_info *d = device_get_softc(dev);
766 struct pcm_channel *ch;
769 ch = pcm_chn_create(d, NULL, cls, dir, devinfo);
771 device_printf(d->dev, "pcm_chn_create(%s, %d, %p) failed\n", cls->name, dir, devinfo);
775 err = pcm_chn_add(d, ch);
777 device_printf(d->dev, "pcm_chn_add(%s) failed, err=%d\n", ch->name, err);
786 pcm_killchan(device_t dev)
788 struct snddev_info *d = device_get_softc(dev);
789 struct snddev_channel *sce;
790 struct pcm_channel *ch;
793 sce = SLIST_FIRST(&d->channels);
796 error = pcm_chn_remove(d, sce->channel);
799 return (pcm_chn_destroy(ch));
803 pcm_setstatus(device_t dev, char *str)
805 struct snddev_info *d = device_get_softc(dev);
807 snd_mtxlock(d->lock);
808 strncpy(d->status, str, SND_STATUSLEN);
809 snd_mtxunlock(d->lock);
810 if (snd_maxautovchans > 0)
816 pcm_getflags(device_t dev)
818 struct snddev_info *d = device_get_softc(dev);
824 pcm_setflags(device_t dev, uint32_t val)
826 struct snddev_info *d = device_get_softc(dev);
832 pcm_getdevinfo(device_t dev)
834 struct snddev_info *d = device_get_softc(dev);
840 pcm_getbuffersize(device_t dev, unsigned int min, unsigned int deflt, unsigned int max)
842 struct snddev_info *d = device_get_softc(dev);
846 if (resource_int_value(device_get_name(dev), device_get_unit(dev), "buffersize", &sz) == 0) {
850 device_printf(dev, "'buffersize=%d' hint is out of range (%d-%d), using %d\n", x, min, max, sz);
857 device_printf(dev, "'buffersize=%d' hint is not a power of 2, using %d\n", sz, x);
870 pcm_register(device_t dev, void *devinfo, int numplay, int numrec)
872 struct snddev_info *d = device_get_softc(dev);
875 device_printf(dev, "disabled due to an error while initialising: %d\n", pcm_veto_load);
880 d->lock = snd_mtxcreate(device_get_nameunit(dev), "sound cdev");
884 * d->flags should be cleared by the allocator of the softc.
885 * We cannot clear this field here because several devices set
886 * this flag before calling pcm_register().
891 d->devinfo = devinfo;
898 SLIST_INIT(&d->channels);
900 if ((numplay == 0 || numrec == 0) && numplay != numrec)
901 d->flags |= SD_F_SIMPLEX;
903 d->fakechan = fkchan_setup(dev);
904 chn_init(d->fakechan, NULL, 0, 0);
907 sysctl_ctx_init(&d->sysctl_tree);
908 d->sysctl_tree_top = SYSCTL_ADD_NODE(&d->sysctl_tree,
909 SYSCTL_STATIC_CHILDREN(_hw_snd), OID_AUTO,
910 device_get_nameunit(dev), CTLFLAG_RD, 0, "");
911 if (d->sysctl_tree_top == NULL) {
912 sysctl_ctx_free(&d->sysctl_tree);
915 SYSCTL_ADD_INT(snd_sysctl_tree(dev), SYSCTL_CHILDREN(snd_sysctl_tree_top(dev)),
916 OID_AUTO, "buffersize", CTLFLAG_RD, &d->bufsz, 0, "");
919 d->flags |= SD_F_AUTOVCHAN;
923 sndstat_register(dev, d->status, sndstat_prepare_pcm);
926 snd_mtxfree(d->lock);
931 pcm_unregister(device_t dev)
933 struct snddev_info *d = device_get_softc(dev);
934 struct snddev_channel *sce;
935 struct pcmchan_children *pce;
936 struct pcm_channel *ch;
938 if (sndstat_acquire() != 0) {
939 device_printf(dev, "unregister: sndstat busy\n");
943 snd_mtxlock(d->lock);
945 device_printf(dev, "unregister: operation in progress\n");
946 snd_mtxunlock(d->lock);
951 SLIST_FOREACH(sce, &d->channels, link) {
953 if (ch->refcount > 0) {
954 device_printf(dev, "unregister: channel %s busy (pid %d)\n", ch->name, ch->pid);
955 snd_mtxunlock(d->lock);
961 if (mixer_uninit(dev) == EBUSY) {
962 device_printf(dev, "unregister: mixer busy\n");
963 snd_mtxunlock(d->lock);
968 SLIST_FOREACH(sce, &d->channels, link) {
969 int unit = device_get_unit(d->dev);
972 release_dev(sce->dsp_devt);
973 dev_ops_remove(&dsp_cdevsw,
974 PCMMKMINOR(-1, -1, 0),
975 PCMMKMINOR(unit, SND_DEV_DSP, sce->chan_num));
976 sce->dsp_devt = NULL;
978 if (sce->dspW_devt) {
979 release_dev(sce->dspW_devt);
980 dev_ops_remove(&dsp_cdevsw,
981 PCMMKMINOR(-1, -1, 0),
982 PCMMKMINOR(unit, SND_DEV_DSP16, sce->chan_num));
983 sce->dspW_devt = NULL;
985 if (sce->audio_devt) {
986 release_dev(sce->audio_devt);
988 dev_ops_remove(&dsp_cdevsw,
989 PCMMKMINOR(-1, -1, 0),
990 PCMMKMINOR(unit, SND_DEV_DSP16, sce->chan_num));
992 sce->audio_devt = NULL;
994 if (sce->dspr_devt) {
995 release_dev(sce->dspr_devt);
996 dev_ops_remove(&dsp_cdevsw,
997 PCMMKMINOR(-1, -1, 0),
998 PCMMKMINOR(unit, SND_DEV_DSPREC, sce->chan_num));
999 sce->dspr_devt = NULL;
1005 pce = SLIST_FIRST(&ch->children);
1006 while (pce != NULL) {
1008 device_printf(d->dev, "<%s> removing <%s>\n",
1009 ch->name, (pce->channel != NULL) ?
1010 pce->channel->name : "unknown");
1012 SLIST_REMOVE(&ch->children, pce, pcmchan_children, link);
1013 kfree(pce, M_DEVBUF);
1014 pce = SLIST_FIRST(&ch->children);
1018 #ifdef SND_DYNSYSCTL
1019 d->sysctl_tree_top = NULL;
1020 sysctl_ctx_free(&d->sysctl_tree);
1024 SLIST_FOREACH(sce, &d->channels, link) {
1028 if (!SLIST_EMPTY(&ch->children))
1029 device_printf(d->dev, "%s: WARNING: <%s> dangling child!\n",
1030 __func__, ch->name);
1033 while (!SLIST_EMPTY(&d->channels))
1036 chn_kill(d->fakechan);
1037 fkchan_kill(d->fakechan);
1040 device_printf(d->dev, "%s: devcount=%u, playcount=%u, "
1041 "reccount=%u, vchancount=%u\n",
1042 __func__, d->devcount, d->playcount, d->reccount,
1045 snd_mtxunlock(d->lock);
1046 snd_mtxfree(d->lock);
1047 sndstat_unregister(dev);
1052 /************************************************************************/
1055 sndstat_prepare_pcm(struct sbuf *s, device_t dev, int verbose)
1057 struct snddev_info *d;
1058 struct snddev_channel *sce;
1059 struct pcm_channel *c;
1060 struct pcm_feeder *f;
1066 d = device_get_softc(dev);
1070 snd_mtxlock(d->lock);
1071 if (!SLIST_EMPTY(&d->channels)) {
1073 SLIST_FOREACH(sce, &d->channels, link) {
1075 if (c->direction == PCMDIR_PLAY) {
1076 if (c->flags & CHN_F_VIRTUAL)
1083 sbuf_printf(s, " (%dp/%dr/%dv channels%s%s)", d->playcount, d->reccount, d->vchancount,
1084 (d->flags & SD_F_SIMPLEX)? "" : " duplex",
1086 (device_get_unit(dev) == snd_unit)? " default" : ""
1093 snd_mtxunlock(d->lock);
1097 SLIST_FOREACH(sce, &d->channels, link) {
1100 KASSERT(c->bufhard != NULL && c->bufsoft != NULL,
1101 ("hosed pcm channel setup"));
1103 sbuf_printf(s, "\n\t");
1105 /* it would be better to indent child channels */
1106 sbuf_printf(s, "%s[%s]: ", c->parentchannel? c->parentchannel->name : "", c->name);
1107 sbuf_printf(s, "spd %d", c->speed);
1108 if (c->speed != sndbuf_getspd(c->bufhard))
1109 sbuf_printf(s, "/%d", sndbuf_getspd(c->bufhard));
1110 sbuf_printf(s, ", fmt 0x%08x", c->format);
1111 if (c->format != sndbuf_getfmt(c->bufhard))
1112 sbuf_printf(s, "/0x%08x", sndbuf_getfmt(c->bufhard));
1113 sbuf_printf(s, ", flags 0x%08x, 0x%08x", c->flags, c->feederflags);
1115 sbuf_printf(s, ", pid %d", c->pid);
1116 sbuf_printf(s, "\n\t");
1118 sbuf_printf(s, "interrupts %d, ", c->interrupts);
1119 if (c->direction == PCMDIR_REC)
1120 sbuf_printf(s, "overruns %d, hfree %d, sfree %d [b:%d/%d/%d|bs:%d/%d/%d]",
1121 c->xruns, sndbuf_getfree(c->bufhard), sndbuf_getfree(c->bufsoft),
1122 sndbuf_getsize(c->bufhard), sndbuf_getblksz(c->bufhard),
1123 sndbuf_getblkcnt(c->bufhard),
1124 sndbuf_getsize(c->bufsoft), sndbuf_getblksz(c->bufsoft),
1125 sndbuf_getblkcnt(c->bufsoft));
1127 sbuf_printf(s, "underruns %d, ready %d [b:%d/%d/%d|bs:%d/%d/%d]",
1128 c->xruns, sndbuf_getready(c->bufsoft),
1129 sndbuf_getsize(c->bufhard), sndbuf_getblksz(c->bufhard),
1130 sndbuf_getblkcnt(c->bufhard),
1131 sndbuf_getsize(c->bufsoft), sndbuf_getblksz(c->bufsoft),
1132 sndbuf_getblkcnt(c->bufsoft));
1133 sbuf_printf(s, "\n\t");
1135 sbuf_printf(s, "{%s}", (c->direction == PCMDIR_REC)? "hardware" : "userland");
1136 sbuf_printf(s, " -> ");
1138 while (f->source != NULL)
1141 sbuf_printf(s, "%s", f->class->name);
1142 if (f->desc->type == FEEDER_FMT)
1143 sbuf_printf(s, "(0x%08x -> 0x%08x)", f->desc->in, f->desc->out);
1144 if (f->desc->type == FEEDER_RATE)
1145 sbuf_printf(s, "(%d -> %d)", FEEDER_GET(f, FEEDRATE_SRC), FEEDER_GET(f, FEEDRATE_DST));
1146 if (f->desc->type == FEEDER_ROOT || f->desc->type == FEEDER_MIXER ||
1147 f->desc->type == FEEDER_VOLUME)
1148 sbuf_printf(s, "(0x%08x)", f->desc->out);
1149 sbuf_printf(s, " -> ");
1152 sbuf_printf(s, "{%s}", (c->direction == PCMDIR_REC)? "userland" : "hardware");
1155 sbuf_printf(s, " (mixer only)");
1156 snd_mtxunlock(d->lock);
1161 /************************************************************************/
1163 #ifdef SND_DYNSYSCTL
1165 sysctl_hw_snd_vchans(SYSCTL_HANDLER_ARGS)
1167 struct snddev_info *d;
1172 newcnt = d->vchancount;
1173 err = sysctl_handle_int(oidp, &newcnt, sizeof(newcnt), req);
1175 if (err == 0 && req->newptr != NULL && d->vchancount != newcnt)
1176 err = pcm_setvchans(d, newcnt);
1182 /************************************************************************/
1185 sound_modevent(module_t mod, int type, void *data)
1188 return (midi_modevent(mod, type, data));
1194 DEV_MODULE(sound, sound_modevent, NULL);
1195 MODULE_VERSION(sound, SOUND_MODVER);