1/*
2 * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
3 * (C) 1997 Luigi Rizzo (luigi@iet.unipi.it)
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
--- 13 unchanged lines hidden (view full) ---
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
25 * SUCH DAMAGE.
26 */
27
28#include <dev/sound/pcm/sound.h>
29#include <dev/sound/pcm/vchan.h>
30#include <sys/sysctl.h>
31
32#include "feeder_if.h"
33
34SND_DECLARE_FILE("$FreeBSD: head/sys/dev/sound/pcm/sound.c 124617 2004-01-17 10:37:11Z phk $");
35
36devclass_t pcm_devclass;
37
38int pcm_veto_load = 1;
39
40#ifdef USING_DEVFS
41int snd_unit = 0;
42TUNABLE_INT("hw.snd.unit", &snd_unit);
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408
409 kobj_delete(ch->methods, M_DEVBUF);
410 free(ch, M_DEVBUF);
411
412 return 0;
413}
414
415int
416pcm_chn_add(struct snddev_info *d, struct pcm_channel *ch, int mkdev)
417{
418 struct snddev_channel *sce, *tmp, *after;
419 int unit = device_get_unit(d->dev);
420 int x = -1;
421
422 sce = malloc(sizeof(*sce), M_DEVBUF, M_WAITOK | M_ZERO);
423 if (!sce) {
424 return ENOMEM;
425 }
426
427 snd_mtxlock(d->lock);
428 sce->channel = ch;
429 if (SLIST_EMPTY(&d->channels)) {
430 SLIST_INSERT_HEAD(&d->channels, sce, link);
431 } else {
432 after = NULL;
433 SLIST_FOREACH(tmp, &d->channels, link) {
434 after = tmp;
435 }
436 SLIST_INSERT_AFTER(after, sce, link);
437 }
438 if (mkdev)
439 x = d->devcount++;
440 snd_mtxunlock(d->lock);
441
442 if (mkdev) {
443 dsp_register(unit, x);
444 if (ch->direction == PCMDIR_REC)
445 dsp_registerrec(unit, ch->num);
446 }
447
448 return 0;
449}
450
451int
452pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch, int rmdev)
453{
454 struct snddev_channel *sce;
455 int unit = device_get_unit(d->dev);
456#if 0
457 int ourlock;
458
459 ourlock = 0;
460 if (!mtx_owned(d->lock)) {
461 snd_mtxlock(d->lock);
462 ourlock = 1;
463 }
--- 5 unchanged lines hidden (view full) ---
469 }
470#if 0
471 if (ourlock)
472 snd_mtxunlock(d->lock);
473#endif
474 return EINVAL;
475gotit:
476 SLIST_REMOVE(&d->channels, sce, snddev_channel, link);
477 if (rmdev) {
478 dsp_unregister(unit, --d->devcount);
479 if (ch->direction == PCMDIR_REC)
480 dsp_unregisterrec(unit, ch->num);
481 }
482
483 if (ch->direction == PCMDIR_REC)
484 d->reccount--;
485 else if (ch->flags & CHN_F_VIRTUAL)
486 d->vchancount--;
487 else
488 d->playcount--;
489
--- 14 unchanged lines hidden (view full) ---
504 int err;
505
506 ch = pcm_chn_create(d, NULL, cls, dir, devinfo);
507 if (!ch) {
508 device_printf(d->dev, "pcm_chn_create(%s, %d, %p) failed\n", cls->name, dir, devinfo);
509 return ENODEV;
510 }
511
512 err = pcm_chn_add(d, ch, 1);
513 if (err) {
514 device_printf(d->dev, "pcm_chn_add(%s) failed, err=%d\n", ch->name, err);
515 snd_mtxunlock(d->lock);
516 pcm_chn_destroy(ch);
517 return err;
518 }
519
520 if (snd_maxautovchans > 0 && (d->flags & SD_F_AUTOVCHAN) &&
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536 struct snddev_info *d = device_get_softc(dev);
537 struct snddev_channel *sce;
538 struct pcm_channel *ch;
539 int error = 0;
540
541 sce = SLIST_FIRST(&d->channels);
542 ch = sce->channel;
543
544 error = pcm_chn_remove(d, sce->channel, SLIST_EMPTY(&ch->children));
545 if (error)
546 return (error);
547 return (pcm_chn_destroy(ch));
548}
549
550int
551pcm_setstatus(device_t dev, char *str)
552{
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680 snd_mtxunlock(d->lock);
681 return EBUSY;
682 }
683 if (sndstat_busy() != 0) {
684 device_printf(dev, "unregister: sndstat busy\n");
685 snd_mtxunlock(d->lock);
686 return EBUSY;
687 }
688 SLIST_FOREACH(sce, &d->channels, link) {
689 ch = sce->channel;
690 if (ch->refcount > 0) {
691 device_printf(dev, "unregister: channel %s busy (pid %d)\n", ch->name, ch->pid);
692 snd_mtxunlock(d->lock);
693 return EBUSY;
694 }
695 }
696 if (mixer_uninit(dev)) {
697 device_printf(dev, "unregister: mixer busy\n");
698 snd_mtxunlock(d->lock);
699 return EBUSY;
700 }
701
702#ifdef SND_DYNSYSCTL
703 d->sysctl_tree_top = NULL;
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710 fkchan_kill(d->fakechan);
711
712 sndstat_unregister(dev);
713 snd_mtxunlock(d->lock);
714 snd_mtxfree(d->lock);
715 return 0;
716}
717
718int
719pcm_regdevt(dev_t dev, unsigned unit, unsigned type, unsigned channel)
720{
721 struct snddev_info *d;
722 struct snddev_devt *dt;
723
724 d = devclass_get_softc(pcm_devclass, unit);
725 KASSERT((d != NULL), ("bad d"));
726 KASSERT((dev != NULL), ("bad dev"));
727
728 dt = malloc(sizeof(*dt), M_DEVBUF, M_ZERO | M_WAITOK);
729 if (dt == NULL)
730 return ENOMEM;
731 dt->dev = dev;
732 dt->type = type;
733 dt->channel = channel;
734
735 snd_mtxlock(d->lock);
736 SLIST_INSERT_HEAD(&d->devs, dt, link);
737 snd_mtxunlock(d->lock);
738
739 return 0;
740}
741
742dev_t
743pcm_getdevt(unsigned unit, unsigned type, unsigned channel)
744{
745 struct snddev_info *d;
746 struct snddev_devt *dt;
747
748 d = devclass_get_softc(pcm_devclass, unit);
749 KASSERT((d != NULL), ("bad d"));
750
751#if 0
752 snd_mtxlock(d->lock);
753#endif
754 SLIST_FOREACH(dt, &d->devs, link) {
755 if ((dt->type == type) && (dt->channel == channel))
756 return dt->dev;
757 }
758#if 0
759 snd_mtxunlock(d->lock);
760#endif
761
762 return NULL;
763}
764
765int
766pcm_unregdevt(unsigned unit, unsigned type, unsigned channel)
767{
768 struct snddev_info *d;
769 struct snddev_devt *dt;
770
771 d = devclass_get_softc(pcm_devclass, unit);
772 KASSERT((d != NULL), ("bad d"));
773
774#if 0
775 snd_mtxlock(d->lock);
776#endif
777 SLIST_FOREACH(dt, &d->devs, link) {
778 if ((dt->type == type) && (dt->channel == channel)) {
779 SLIST_REMOVE(&d->devs, dt, snddev_devt, link);
780 free(dt, M_DEVBUF);
781#if 0
782 snd_mtxunlock(d->lock);
783#endif
784 return 0;
785 }
786 }
787#if 0
788 snd_mtxunlock(d->lock);
789#endif
790
791 return ENOENT;
792}
793
794/************************************************************************/
795
796static int
797sndstat_prepare_pcm(struct sbuf *s, device_t dev, int verbose)
798{
799 struct snddev_info *d;
800 struct snddev_channel *sce;
801 struct pcm_channel *c;
--- 205 unchanged lines hidden ---
2 * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
3 * (C) 1997 Luigi Rizzo (luigi@iet.unipi.it)
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
--- 13 unchanged lines hidden (view full) ---
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
25 * SUCH DAMAGE.
26 */
27
28#include <dev/sound/pcm/sound.h>
29#include <dev/sound/pcm/vchan.h>
30#include <sys/sysctl.h>
31
32#include "feeder_if.h"
33
34SND_DECLARE_FILE("$FreeBSD: head/sys/dev/sound/pcm/sound.c 124617 2004-01-17 10:37:11Z phk $");
35
36devclass_t pcm_devclass;
37
38int pcm_veto_load = 1;
39
40#ifdef USING_DEVFS
41int snd_unit = 0;
42TUNABLE_INT("hw.snd.unit", &snd_unit);
--- 365 unchanged lines hidden (view full) ---
408
409 kobj_delete(ch->methods, M_DEVBUF);
410 free(ch, M_DEVBUF);
411
412 return 0;
413}
414
415int
416pcm_chn_add(struct snddev_info *d, struct pcm_channel *ch, int mkdev)
417{
418 struct snddev_channel *sce, *tmp, *after;
419 int unit = device_get_unit(d->dev);
420 int x = -1;
421
422 sce = malloc(sizeof(*sce), M_DEVBUF, M_WAITOK | M_ZERO);
423 if (!sce) {
424 return ENOMEM;
425 }
426
427 snd_mtxlock(d->lock);
428 sce->channel = ch;
429 if (SLIST_EMPTY(&d->channels)) {
430 SLIST_INSERT_HEAD(&d->channels, sce, link);
431 } else {
432 after = NULL;
433 SLIST_FOREACH(tmp, &d->channels, link) {
434 after = tmp;
435 }
436 SLIST_INSERT_AFTER(after, sce, link);
437 }
438 if (mkdev)
439 x = d->devcount++;
440 snd_mtxunlock(d->lock);
441
442 if (mkdev) {
443 dsp_register(unit, x);
444 if (ch->direction == PCMDIR_REC)
445 dsp_registerrec(unit, ch->num);
446 }
447
448 return 0;
449}
450
451int
452pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch, int rmdev)
453{
454 struct snddev_channel *sce;
455 int unit = device_get_unit(d->dev);
456#if 0
457 int ourlock;
458
459 ourlock = 0;
460 if (!mtx_owned(d->lock)) {
461 snd_mtxlock(d->lock);
462 ourlock = 1;
463 }
--- 5 unchanged lines hidden (view full) ---
469 }
470#if 0
471 if (ourlock)
472 snd_mtxunlock(d->lock);
473#endif
474 return EINVAL;
475gotit:
476 SLIST_REMOVE(&d->channels, sce, snddev_channel, link);
477 if (rmdev) {
478 dsp_unregister(unit, --d->devcount);
479 if (ch->direction == PCMDIR_REC)
480 dsp_unregisterrec(unit, ch->num);
481 }
482
483 if (ch->direction == PCMDIR_REC)
484 d->reccount--;
485 else if (ch->flags & CHN_F_VIRTUAL)
486 d->vchancount--;
487 else
488 d->playcount--;
489
--- 14 unchanged lines hidden (view full) ---
504 int err;
505
506 ch = pcm_chn_create(d, NULL, cls, dir, devinfo);
507 if (!ch) {
508 device_printf(d->dev, "pcm_chn_create(%s, %d, %p) failed\n", cls->name, dir, devinfo);
509 return ENODEV;
510 }
511
512 err = pcm_chn_add(d, ch, 1);
513 if (err) {
514 device_printf(d->dev, "pcm_chn_add(%s) failed, err=%d\n", ch->name, err);
515 snd_mtxunlock(d->lock);
516 pcm_chn_destroy(ch);
517 return err;
518 }
519
520 if (snd_maxautovchans > 0 && (d->flags & SD_F_AUTOVCHAN) &&
--- 15 unchanged lines hidden (view full) ---
536 struct snddev_info *d = device_get_softc(dev);
537 struct snddev_channel *sce;
538 struct pcm_channel *ch;
539 int error = 0;
540
541 sce = SLIST_FIRST(&d->channels);
542 ch = sce->channel;
543
544 error = pcm_chn_remove(d, sce->channel, SLIST_EMPTY(&ch->children));
545 if (error)
546 return (error);
547 return (pcm_chn_destroy(ch));
548}
549
550int
551pcm_setstatus(device_t dev, char *str)
552{
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680 snd_mtxunlock(d->lock);
681 return EBUSY;
682 }
683 if (sndstat_busy() != 0) {
684 device_printf(dev, "unregister: sndstat busy\n");
685 snd_mtxunlock(d->lock);
686 return EBUSY;
687 }
688 SLIST_FOREACH(sce, &d->channels, link) {
689 ch = sce->channel;
690 if (ch->refcount > 0) {
691 device_printf(dev, "unregister: channel %s busy (pid %d)\n", ch->name, ch->pid);
692 snd_mtxunlock(d->lock);
693 return EBUSY;
694 }
695 }
696 if (mixer_uninit(dev)) {
697 device_printf(dev, "unregister: mixer busy\n");
698 snd_mtxunlock(d->lock);
699 return EBUSY;
700 }
701
702#ifdef SND_DYNSYSCTL
703 d->sysctl_tree_top = NULL;
--- 6 unchanged lines hidden (view full) ---
710 fkchan_kill(d->fakechan);
711
712 sndstat_unregister(dev);
713 snd_mtxunlock(d->lock);
714 snd_mtxfree(d->lock);
715 return 0;
716}
717
718int
719pcm_regdevt(dev_t dev, unsigned unit, unsigned type, unsigned channel)
720{
721 struct snddev_info *d;
722 struct snddev_devt *dt;
723
724 d = devclass_get_softc(pcm_devclass, unit);
725 KASSERT((d != NULL), ("bad d"));
726 KASSERT((dev != NULL), ("bad dev"));
727
728 dt = malloc(sizeof(*dt), M_DEVBUF, M_ZERO | M_WAITOK);
729 if (dt == NULL)
730 return ENOMEM;
731 dt->dev = dev;
732 dt->type = type;
733 dt->channel = channel;
734
735 snd_mtxlock(d->lock);
736 SLIST_INSERT_HEAD(&d->devs, dt, link);
737 snd_mtxunlock(d->lock);
738
739 return 0;
740}
741
742dev_t
743pcm_getdevt(unsigned unit, unsigned type, unsigned channel)
744{
745 struct snddev_info *d;
746 struct snddev_devt *dt;
747
748 d = devclass_get_softc(pcm_devclass, unit);
749 KASSERT((d != NULL), ("bad d"));
750
751#if 0
752 snd_mtxlock(d->lock);
753#endif
754 SLIST_FOREACH(dt, &d->devs, link) {
755 if ((dt->type == type) && (dt->channel == channel))
756 return dt->dev;
757 }
758#if 0
759 snd_mtxunlock(d->lock);
760#endif
761
762 return NULL;
763}
764
765int
766pcm_unregdevt(unsigned unit, unsigned type, unsigned channel)
767{
768 struct snddev_info *d;
769 struct snddev_devt *dt;
770
771 d = devclass_get_softc(pcm_devclass, unit);
772 KASSERT((d != NULL), ("bad d"));
773
774#if 0
775 snd_mtxlock(d->lock);
776#endif
777 SLIST_FOREACH(dt, &d->devs, link) {
778 if ((dt->type == type) && (dt->channel == channel)) {
779 SLIST_REMOVE(&d->devs, dt, snddev_devt, link);
780 free(dt, M_DEVBUF);
781#if 0
782 snd_mtxunlock(d->lock);
783#endif
784 return 0;
785 }
786 }
787#if 0
788 snd_mtxunlock(d->lock);
789#endif
790
791 return ENOENT;
792}
793
794/************************************************************************/
795
796static int
797sndstat_prepare_pcm(struct sbuf *s, device_t dev, int verbose)
798{
799 struct snddev_info *d;
800 struct snddev_channel *sce;
801 struct pcm_channel *c;
--- 205 unchanged lines hidden ---