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 1.11 2007/06/16 20:07:22 dillon 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 1.11 2007/06/16 20:07:22 dillon 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);
81 lockinit(m, __DECONST(char *, type), 0, LK_CANRECURSE);
84 return (void *)0xcafebabe;
99 snd_mtxassert(void *m)
114 lockmgr(lk, LK_EXCLUSIVE | LK_RETRY);
119 snd_mtxunlock(void *m)
124 lockmgr(lk, LK_RELEASE);
129 snd_mtxsleep(void *addr, sndlock_t lock, int flags, const char *wmesg, int timo)
134 tsleep_interlock(addr);
136 r = tsleep(addr, flags, wmesg, timo);
145 snd_setup_intr(device_t dev, struct resource *res, int flags, driver_intr_t hand, void *param, void **cookiep)
148 flags &= INTR_MPSAFE;
149 flags |= INTR_TYPE_AV;
151 flags = INTR_TYPE_AV;
153 return bus_setup_intr(dev, res, flags, hand, param, cookiep, NULL);
156 #ifndef PCM_DEBUG_MTX
158 pcm_lock(struct snddev_info *d)
160 snd_mtxlock(d->lock);
164 pcm_unlock(struct snddev_info *d)
166 snd_mtxunlock(d->lock);
171 pcm_getfakechan(struct snddev_info *d)
177 pcm_setvchans(struct snddev_info *d, int newcnt)
179 struct snddev_channel *sce = NULL;
180 struct pcm_channel *c = NULL;
181 int err = 0, vcnt, dcnt, i;
185 if (!(d->flags & SD_F_AUTOVCHAN)) {
190 vcnt = d->vchancount;
191 dcnt = d->playcount + d->reccount;
193 if (newcnt < 0 || (dcnt + newcnt) > (PCMMAXCHAN + 1)) {
201 /* add new vchans - find a parent channel first */
202 SLIST_FOREACH(sce, &d->channels, link) {
205 if (c->direction == PCMDIR_PLAY &&
206 ((c->flags & CHN_F_HAS_VCHAN) ||
208 !(c->flags & (CHN_F_BUSY | CHN_F_VIRTUAL)))))
215 c->flags |= CHN_F_BUSY;
216 while (err == 0 && newcnt > vcnt) {
217 if (dcnt > PCMMAXCHAN) {
218 device_printf(d->dev, "%s: Maximum channel reached.\n", __func__);
221 err = vchan_create(c);
225 } else if (err == E2BIG && newcnt > vcnt)
226 device_printf(d->dev, "%s: err=%d Maximum channel reached.\n", __func__, err);
229 c->flags &= ~CHN_F_BUSY;
231 } else if (newcnt < vcnt) {
232 #define ORPHAN_CDEVT(cdevt) \
233 ((cdevt) == NULL || ((cdevt)->si_drv1 == NULL && \
234 (cdevt)->si_drv2 == NULL))
235 while (err == 0 && newcnt < vcnt) {
237 SLIST_FOREACH(sce, &d->channels, link) {
240 if (c->direction == PCMDIR_PLAY &&
241 (c->flags & CHN_F_VIRTUAL) &&
243 if (!(c->flags & CHN_F_BUSY) &&
244 ORPHAN_CDEVT(sce->dsp_devt) &&
245 ORPHAN_CDEVT(sce->dspW_devt) &&
246 ORPHAN_CDEVT(sce->audio_devt) &&
247 ORPHAN_CDEVT(sce->dspr_devt))
250 * Either we're busy, or our cdev
251 * has been stolen by dsp_clone().
252 * Skip, and increase newcnt.
254 if (!(c->flags & CHN_F_BUSY))
255 device_printf(d->dev,
256 "%s: <%s> somebody steal my cdev!\n",
267 err = vchan_destroy(c);
271 device_printf(d->dev,
272 "%s: WARNING: vchan_destroy() failed!",
282 /* return error status and a locked channel */
284 pcm_chnalloc(struct snddev_info *d, struct pcm_channel **ch, int direction,
285 pid_t pid, int chnum)
287 struct pcm_channel *c;
288 struct snddev_channel *sce;
293 /* scan for a free channel */
294 SLIST_FOREACH(sce, &d->channels, link) {
297 if (c->direction == direction && !(c->flags & CHN_F_BUSY)) {
298 if (chnum < 0 || sce->chan_num == chnum) {
299 c->flags |= CHN_F_BUSY;
305 if (sce->chan_num == chnum) {
306 if (c->direction != direction)
308 else if (c->flags & CHN_F_BUSY)
314 } else if (c->direction == direction && (c->flags & CHN_F_BUSY))
319 /* no channel available */
320 if (chnum == -1 && direction == PCMDIR_PLAY && d->vchancount > 0 &&
321 d->vchancount < snd_maxautovchans &&
322 d->devcount <= PCMMAXCHAN) {
323 err = pcm_setvchans(d, d->vchancount + 1);
333 /* release a locked channel and unlock it */
335 pcm_chnrelease(struct pcm_channel *c)
338 c->flags &= ~CHN_F_BUSY;
345 pcm_chnref(struct pcm_channel *c, int ref)
356 pcm_inprog(struct snddev_info *d, int delta)
372 pcm_setmaxautovchans(struct snddev_info *d, int num)
374 if (num > 0 && d->vchancount == 0)
376 else if (num == 0 && d->vchancount > 0)
382 sysctl_hw_snd_unit(SYSCTL_HANDLER_ARGS)
384 struct snddev_info *d;
388 error = sysctl_handle_int(oidp, &unit, sizeof(unit), req);
389 if (error == 0 && req->newptr != NULL) {
390 if (unit < 0 || (pcm_devclass != NULL &&
391 unit >= devclass_get_maxunit(pcm_devclass)))
393 d = devclass_get_softc(pcm_devclass, unit);
394 if (d == NULL || SLIST_EMPTY(&d->channels))
400 SYSCTL_PROC(_hw_snd, OID_AUTO, unit, CTLTYPE_INT | CTLFLAG_RW,
401 0, sizeof(int), sysctl_hw_snd_unit, "I", "");
405 sysctl_hw_snd_maxautovchans(SYSCTL_HANDLER_ARGS)
407 struct snddev_info *d;
410 v = snd_maxautovchans;
411 error = sysctl_handle_int(oidp, &v, sizeof(v), req);
412 if (error == 0 && req->newptr != NULL) {
413 if (v < 0 || v > PCMMAXCHAN)
415 if (pcm_devclass != NULL && v != snd_maxautovchans) {
416 for (i = 0; i < devclass_get_maxunit(pcm_devclass); i++) {
417 d = devclass_get_softc(pcm_devclass, i);
420 pcm_setmaxautovchans(d, v);
423 snd_maxautovchans = v;
427 SYSCTL_PROC(_hw_snd, OID_AUTO, maxautovchans, CTLTYPE_INT | CTLFLAG_RW,
428 0, sizeof(int), sysctl_hw_snd_maxautovchans, "I", "");
431 pcm_chn_create(struct snddev_info *d, struct pcm_channel *parent, kobj_class_t cls, int dir, void *devinfo)
433 struct snddev_channel *sce;
434 struct pcm_channel *ch, *c;
436 uint32_t flsearch = 0;
437 int direction, err, rpnum, *pnum;
442 direction = PCMDIR_PLAY;
443 pnum = &d->playcount;
448 direction = PCMDIR_REC;
454 direction = PCMDIR_PLAY;
455 pnum = &d->vchancount;
456 flsearch = CHN_F_VIRTUAL;
463 ch = kmalloc(sizeof(*ch), M_DEVBUF, M_WAITOK | M_ZERO);
467 ch->methods = kobj_create(cls, M_DEVBUF, M_WAITOK);
474 snd_mtxlock(d->lock);
477 SLIST_FOREACH(sce, &d->channels, link) {
479 if (direction != c->direction ||
480 (c->flags & CHN_F_VIRTUAL) != flsearch)
482 if (ch->num == c->num)
486 device_printf(d->dev,
487 "%s: %s channel numbering screwed (Expect: %d, Got: %d)\n",
488 __func__, dirs, ch->num, c->num);
490 goto retry_num_search;
494 goto retry_num_search_out;
497 SLIST_FOREACH(sce, &d->channels, link) {
499 if (direction != c->direction ||
500 (c->flags & CHN_F_VIRTUAL) != flsearch)
502 if (ch->num == c->num) {
504 goto retry_num_search;
508 retry_num_search_out:
509 if (*pnum != rpnum) {
510 device_printf(d->dev,
511 "%s: WARNING: pnum screwed : dirs=%s, pnum=%d, rpnum=%d\n",
512 __func__, dirs, *pnum, rpnum);
516 snd_mtxunlock(d->lock);
519 ch->parentsnddev = d;
520 ch->parentchannel = parent;
522 ksnprintf(ch->name, CHN_NAMELEN, "%s:%s:%d", device_get_nameunit(ch->dev), dirs, ch->num);
524 err = chn_init(ch, devinfo, dir, direction);
526 device_printf(d->dev, "chn_init(%s) failed: err = %d\n", ch->name, err);
527 kobj_delete(ch->methods, M_DEVBUF);
529 snd_mtxlock(d->lock);
531 snd_mtxunlock(d->lock);
540 pcm_chn_iterate(struct snddev_info *d, void **cookie)
542 struct snddev_channel **last = (struct snddev_channel **)cookie;
545 *last = SLIST_FIRST(&d->channels);
547 *last = SLIST_NEXT(*last, link);
552 return (*last)->channel;
556 pcm_chn_destroy(struct pcm_channel *ch)
558 struct snddev_info *d;
561 d = ch->parentsnddev;
564 device_printf(d->dev, "chn_kill(%s) failed, err = %d\n", ch->name, err);
568 kobj_delete(ch->methods, M_DEVBUF);
575 pcm_chn_add(struct snddev_info *d, struct pcm_channel *ch)
577 struct snddev_channel *sce, *tmp, *after;
579 int device = device_get_unit(d->dev);
583 * Note it's confusing nomenclature.
585 * device -> pcm_device
586 * unit -> pcm_channel
587 * channel -> snddev_channel
592 sce = kmalloc(sizeof(*sce), M_DEVBUF, M_WAITOK | M_ZERO);
597 snd_mtxlock(d->lock);
602 SLIST_FOREACH(tmp, &d->channels, link) {
603 if (sce->chan_num == tmp->chan_num)
607 device_printf(d->dev,
608 "%s: cdev numbering screwed (Expect: %d, Got: %d)\n",
609 __func__, sce->chan_num, tmp->chan_num);
611 goto retry_chan_num_search;
616 goto retry_chan_num_search_out;
617 retry_chan_num_search:
619 * Look for possible channel numbering collision. This may not
620 * be optimized, but it will ensure that no collision occured.
621 * Can be considered cheap since none of the locking/unlocking
622 * operations involved.
626 SLIST_FOREACH(tmp, &d->channels, link) {
627 if (sce->chan_num == tmp->chan_num) {
629 goto retry_chan_num_search;
631 if (sce->chan_num > tmp->chan_num)
635 retry_chan_num_search_out:
637 * Don't overflow PCMMKMINOR / PCMMAXCHAN.
639 if (sce->chan_num > PCMMAXCHAN) {
640 snd_mtxunlock(d->lock);
641 device_printf(d->dev,
642 "%s: WARNING: sce->chan_num overflow! (%d)\n",
643 __func__, sce->chan_num);
644 kfree(sce, M_DEVBUF);
647 if (d->devcount != rdevcount) {
648 device_printf(d->dev,
649 "%s: WARNING: devcount screwed! d->devcount=%u, rdevcount=%u\n",
650 __func__, d->devcount, rdevcount);
651 d->devcount = rdevcount;
655 SLIST_INSERT_HEAD(&d->channels, sce, link);
657 SLIST_INSERT_AFTER(after, sce, link);
662 SLIST_FOREACH(tmp, &d->channels, link) {
663 if (cnum != tmp->chan_num)
664 device_printf(d->dev,
665 "%s: WARNING: inconsistent cdev numbering! (Expect: %d, Got: %d)\n",
666 __func__, cnum, tmp->chan_num);
672 namelen = strlen(ch->name);
673 if ((CHN_NAMELEN - namelen) > 10) { /* ":dspXX.YYY" */
674 ksnprintf(ch->name + namelen,
675 CHN_NAMELEN - namelen, ":dsp%d.%d",
676 device, sce->chan_num);
678 snd_mtxunlock(d->lock);
681 * I will revisit these someday, and nuke it mercilessly..
683 dev_ops_add(&dsp_cdevsw,
684 PCMMKMINOR(-1, -1, 0),
685 PCMMKMINOR(device, SND_DEV_DSP, sce->chan_num));
686 sce->dsp_devt = make_dev(&dsp_cdevsw,
687 PCMMKMINOR(device, SND_DEV_DSP, sce->chan_num),
688 UID_ROOT, GID_WHEEL, 0666, "dsp%d.%d",
689 device, sce->chan_num);
690 reference_dev(sce->dsp_devt);
692 dev_ops_add(&dsp_cdevsw,
693 PCMMKMINOR(-1, -1, 0),
694 PCMMKMINOR(device, SND_DEV_DSP16, sce->chan_num));
695 sce->dspW_devt = make_dev(&dsp_cdevsw,
696 PCMMKMINOR(device, SND_DEV_DSP16, sce->chan_num),
697 UID_ROOT, GID_WHEEL, 0666, "dspW%d.%d",
698 device, sce->chan_num);
699 reference_dev(sce->dspW_devt);
702 dev_ops_add(&dsp_cdevsw,
703 PCMMKMINOR(-1, -1, 0),
704 PCMMKMINOR(device, SND_DEV_DSP, sce->chan_num));
705 sce->audio_devt = make_dev(&dsp_cdevsw,
706 PCMMKMINOR(device, SND_DEV_DSP, sce->chan_num),
707 UID_ROOT, GID_WHEEL, 0666, "audio%d.%d",
708 device, sce->chan_num);
710 sce->audio_devt = sce->dsp_devt;
711 reference_dev(sce->audio_devt);
713 if (ch->direction == PCMDIR_REC) {
714 dev_ops_add(&dsp_cdevsw,
715 PCMMKMINOR(-1, -1, 0),
716 PCMMKMINOR(device, SND_DEV_DSPREC, sce->chan_num));
717 sce->dspr_devt = make_dev(&dsp_cdevsw,
718 PCMMKMINOR(device, SND_DEV_DSPREC,
719 sce->chan_num), UID_ROOT, GID_WHEEL,
720 0666, "dspr%d.%d", device, sce->chan_num);
721 reference_dev(sce->dspr_devt);
728 pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch)
730 struct snddev_channel *sce;
735 if (!mtx_owned(d->lock)) {
736 snd_mtxlock(d->lock);
741 SLIST_FOREACH(sce, &d->channels, link) {
742 if (sce->channel == ch)
747 snd_mtxunlock(d->lock);
751 SLIST_REMOVE(&d->channels, sce, snddev_channel, link);
753 if (ch->flags & CHN_F_VIRTUAL)
755 else if (ch->direction == PCMDIR_REC)
762 snd_mtxunlock(d->lock);
764 kfree(sce, M_DEVBUF);
770 pcm_addchan(device_t dev, int dir, kobj_class_t cls, void *devinfo)
772 struct snddev_info *d = device_get_softc(dev);
773 struct pcm_channel *ch;
776 ch = pcm_chn_create(d, NULL, cls, dir, devinfo);
778 device_printf(d->dev, "pcm_chn_create(%s, %d, %p) failed\n", cls->name, dir, devinfo);
782 err = pcm_chn_add(d, ch);
784 device_printf(d->dev, "pcm_chn_add(%s) failed, err=%d\n", ch->name, err);
793 pcm_killchan(device_t dev)
795 struct snddev_info *d = device_get_softc(dev);
796 struct snddev_channel *sce;
797 struct pcm_channel *ch;
800 sce = SLIST_FIRST(&d->channels);
803 error = pcm_chn_remove(d, sce->channel);
806 return (pcm_chn_destroy(ch));
810 pcm_setstatus(device_t dev, char *str)
812 struct snddev_info *d = device_get_softc(dev);
814 snd_mtxlock(d->lock);
815 strncpy(d->status, str, SND_STATUSLEN);
816 snd_mtxunlock(d->lock);
817 if (snd_maxautovchans > 0)
823 pcm_getflags(device_t dev)
825 struct snddev_info *d = device_get_softc(dev);
831 pcm_setflags(device_t dev, uint32_t val)
833 struct snddev_info *d = device_get_softc(dev);
839 pcm_getdevinfo(device_t dev)
841 struct snddev_info *d = device_get_softc(dev);
847 pcm_getbuffersize(device_t dev, unsigned int min, unsigned int deflt, unsigned int max)
849 struct snddev_info *d = device_get_softc(dev);
853 if (resource_int_value(device_get_name(dev), device_get_unit(dev), "buffersize", &sz) == 0) {
857 device_printf(dev, "'buffersize=%d' hint is out of range (%d-%d), using %d\n", x, min, max, sz);
864 device_printf(dev, "'buffersize=%d' hint is not a power of 2, using %d\n", sz, x);
877 pcm_register(device_t dev, void *devinfo, int numplay, int numrec)
879 struct snddev_info *d = device_get_softc(dev);
882 device_printf(dev, "disabled due to an error while initialising: %d\n", pcm_veto_load);
887 d->lock = snd_mtxcreate(device_get_nameunit(dev), "sound cdev");
891 * d->flags should be cleared by the allocator of the softc.
892 * We cannot clear this field here because several devices set
893 * this flag before calling pcm_register().
898 d->devinfo = devinfo;
905 SLIST_INIT(&d->channels);
907 if ((numplay == 0 || numrec == 0) && numplay != numrec)
908 d->flags |= SD_F_SIMPLEX;
910 d->fakechan = fkchan_setup(dev);
911 chn_init(d->fakechan, NULL, 0, 0);
914 sysctl_ctx_init(&d->sysctl_tree);
915 d->sysctl_tree_top = SYSCTL_ADD_NODE(&d->sysctl_tree,
916 SYSCTL_STATIC_CHILDREN(_hw_snd), OID_AUTO,
917 device_get_nameunit(dev), CTLFLAG_RD, 0, "");
918 if (d->sysctl_tree_top == NULL) {
919 sysctl_ctx_free(&d->sysctl_tree);
922 SYSCTL_ADD_INT(snd_sysctl_tree(dev), SYSCTL_CHILDREN(snd_sysctl_tree_top(dev)),
923 OID_AUTO, "buffersize", CTLFLAG_RD, &d->bufsz, 0, "");
926 d->flags |= SD_F_AUTOVCHAN;
930 sndstat_register(dev, d->status, sndstat_prepare_pcm);
933 snd_mtxfree(d->lock);
938 pcm_unregister(device_t dev)
940 struct snddev_info *d = device_get_softc(dev);
941 struct snddev_channel *sce;
942 struct pcmchan_children *pce;
943 struct pcm_channel *ch;
945 if (sndstat_acquire() != 0) {
946 device_printf(dev, "unregister: sndstat busy\n");
950 snd_mtxlock(d->lock);
952 device_printf(dev, "unregister: operation in progress\n");
953 snd_mtxunlock(d->lock);
958 SLIST_FOREACH(sce, &d->channels, link) {
960 if (ch->refcount > 0) {
961 device_printf(dev, "unregister: channel %s busy (pid %d)\n", ch->name, ch->pid);
962 snd_mtxunlock(d->lock);
968 if (mixer_uninit(dev) == EBUSY) {
969 device_printf(dev, "unregister: mixer busy\n");
970 snd_mtxunlock(d->lock);
975 SLIST_FOREACH(sce, &d->channels, link) {
976 int unit = device_get_unit(d->dev);
979 release_dev(sce->dsp_devt);
980 dev_ops_remove(&dsp_cdevsw,
981 PCMMKMINOR(-1, -1, 0),
982 PCMMKMINOR(unit, SND_DEV_DSP, sce->chan_num));
983 sce->dsp_devt = NULL;
985 if (sce->dspW_devt) {
986 release_dev(sce->dspW_devt);
987 dev_ops_remove(&dsp_cdevsw,
988 PCMMKMINOR(-1, -1, 0),
989 PCMMKMINOR(unit, SND_DEV_DSP16, sce->chan_num));
990 sce->dspW_devt = NULL;
992 if (sce->audio_devt) {
993 release_dev(sce->audio_devt);
995 dev_ops_remove(&dsp_cdevsw,
996 PCMMKMINOR(-1, -1, 0),
997 PCMMKMINOR(unit, SND_DEV_DSP16, sce->chan_num));
999 sce->audio_devt = NULL;
1001 if (sce->dspr_devt) {
1002 release_dev(sce->dspr_devt);
1003 dev_ops_remove(&dsp_cdevsw,
1004 PCMMKMINOR(-1, -1, 0),
1005 PCMMKMINOR(unit, SND_DEV_DSPREC, sce->chan_num));
1006 sce->dspr_devt = NULL;
1012 pce = SLIST_FIRST(&ch->children);
1013 while (pce != NULL) {
1015 device_printf(d->dev, "<%s> removing <%s>\n",
1016 ch->name, (pce->channel != NULL) ?
1017 pce->channel->name : "unknown");
1019 SLIST_REMOVE(&ch->children, pce, pcmchan_children, link);
1020 kfree(pce, M_DEVBUF);
1021 pce = SLIST_FIRST(&ch->children);
1025 #ifdef SND_DYNSYSCTL
1026 d->sysctl_tree_top = NULL;
1027 sysctl_ctx_free(&d->sysctl_tree);
1031 SLIST_FOREACH(sce, &d->channels, link) {
1035 if (!SLIST_EMPTY(&ch->children))
1036 device_printf(d->dev, "%s: WARNING: <%s> dangling child!\n",
1037 __func__, ch->name);
1040 while (!SLIST_EMPTY(&d->channels))
1043 chn_kill(d->fakechan);
1044 fkchan_kill(d->fakechan);
1047 device_printf(d->dev, "%s: devcount=%u, playcount=%u, "
1048 "reccount=%u, vchancount=%u\n",
1049 __func__, d->devcount, d->playcount, d->reccount,
1052 snd_mtxunlock(d->lock);
1053 snd_mtxfree(d->lock);
1054 sndstat_unregister(dev);
1059 /************************************************************************/
1062 sndstat_prepare_pcm(struct sbuf *s, device_t dev, int verbose)
1064 struct snddev_info *d;
1065 struct snddev_channel *sce;
1066 struct pcm_channel *c;
1067 struct pcm_feeder *f;
1073 d = device_get_softc(dev);
1077 snd_mtxlock(d->lock);
1078 if (!SLIST_EMPTY(&d->channels)) {
1080 SLIST_FOREACH(sce, &d->channels, link) {
1082 if (c->direction == PCMDIR_PLAY) {
1083 if (c->flags & CHN_F_VIRTUAL)
1090 sbuf_printf(s, " (%dp/%dr/%dv channels%s%s)", d->playcount, d->reccount, d->vchancount,
1091 (d->flags & SD_F_SIMPLEX)? "" : " duplex",
1093 (device_get_unit(dev) == snd_unit)? " default" : ""
1100 snd_mtxunlock(d->lock);
1104 SLIST_FOREACH(sce, &d->channels, link) {
1107 KASSERT(c->bufhard != NULL && c->bufsoft != NULL,
1108 ("hosed pcm channel setup"));
1110 sbuf_printf(s, "\n\t");
1112 /* it would be better to indent child channels */
1113 sbuf_printf(s, "%s[%s]: ", c->parentchannel? c->parentchannel->name : "", c->name);
1114 sbuf_printf(s, "spd %d", c->speed);
1115 if (c->speed != sndbuf_getspd(c->bufhard))
1116 sbuf_printf(s, "/%d", sndbuf_getspd(c->bufhard));
1117 sbuf_printf(s, ", fmt 0x%08x", c->format);
1118 if (c->format != sndbuf_getfmt(c->bufhard))
1119 sbuf_printf(s, "/0x%08x", sndbuf_getfmt(c->bufhard));
1120 sbuf_printf(s, ", flags 0x%08x, 0x%08x", c->flags, c->feederflags);
1122 sbuf_printf(s, ", pid %d", c->pid);
1123 sbuf_printf(s, "\n\t");
1125 sbuf_printf(s, "interrupts %d, ", c->interrupts);
1126 if (c->direction == PCMDIR_REC)
1127 sbuf_printf(s, "overruns %d, hfree %d, sfree %d [b:%d/%d/%d|bs:%d/%d/%d]",
1128 c->xruns, sndbuf_getfree(c->bufhard), sndbuf_getfree(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));
1134 sbuf_printf(s, "underruns %d, ready %d [b:%d/%d/%d|bs:%d/%d/%d]",
1135 c->xruns, sndbuf_getready(c->bufsoft),
1136 sndbuf_getsize(c->bufhard), sndbuf_getblksz(c->bufhard),
1137 sndbuf_getblkcnt(c->bufhard),
1138 sndbuf_getsize(c->bufsoft), sndbuf_getblksz(c->bufsoft),
1139 sndbuf_getblkcnt(c->bufsoft));
1140 sbuf_printf(s, "\n\t");
1142 sbuf_printf(s, "{%s}", (c->direction == PCMDIR_REC)? "hardware" : "userland");
1143 sbuf_printf(s, " -> ");
1145 while (f->source != NULL)
1148 sbuf_printf(s, "%s", f->class->name);
1149 if (f->desc->type == FEEDER_FMT)
1150 sbuf_printf(s, "(0x%08x -> 0x%08x)", f->desc->in, f->desc->out);
1151 if (f->desc->type == FEEDER_RATE)
1152 sbuf_printf(s, "(%d -> %d)", FEEDER_GET(f, FEEDRATE_SRC), FEEDER_GET(f, FEEDRATE_DST));
1153 if (f->desc->type == FEEDER_ROOT || f->desc->type == FEEDER_MIXER ||
1154 f->desc->type == FEEDER_VOLUME)
1155 sbuf_printf(s, "(0x%08x)", f->desc->out);
1156 sbuf_printf(s, " -> ");
1159 sbuf_printf(s, "{%s}", (c->direction == PCMDIR_REC)? "userland" : "hardware");
1162 sbuf_printf(s, " (mixer only)");
1163 snd_mtxunlock(d->lock);
1168 /************************************************************************/
1170 #ifdef SND_DYNSYSCTL
1172 sysctl_hw_snd_vchans(SYSCTL_HANDLER_ARGS)
1174 struct snddev_info *d;
1179 newcnt = d->vchancount;
1180 err = sysctl_handle_int(oidp, &newcnt, sizeof(newcnt), req);
1182 if (err == 0 && req->newptr != NULL && d->vchancount != newcnt)
1183 err = pcm_setvchans(d, newcnt);
1189 /************************************************************************/
1192 sound_modevent(module_t mod, int type, void *data)
1195 return (midi_modevent(mod, type, data));
1201 DEV_MODULE(sound, sound_modevent, NULL);
1202 MODULE_VERSION(sound, SOUND_MODVER);