#include <dev/sound/pcm/sound.h>
#include <dev/sound/pcm/vchan.h>

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Data Structures
struct	vchan_info

Macros
#define	FMTLIST_MAX 6

#define	FMTLIST_OFFSET 4

#define	DIGFMTS_MAX 2

#define	VCHAN_ACCESSIBLE(c)

#define	VCHAN_FMT_HINT(x)

#define	VCHAN_SPD_HINT(x)

Functions
	SND_DECLARE_FILE ("$FreeBSD$")

static void *	vchan_init (kobj_t obj, void devinfo, struct snd_dbuf b, struct pcm_channel *c, int dir)

static int	vchan_free (kobj_t obj, void *data)

static int	vchan_setformat (kobj_t obj, void *data, uint32_t format)

static uint32_t	vchan_setspeed (kobj_t obj, void *data, uint32_t speed)

static int	vchan_trigger (kobj_t obj, void *data, int go)

static struct pcmchan_caps *	vchan_getcaps (kobj_t obj, void *data)

static struct pcmchan_matrix *	vchan_getmatrix (kobj_t obj, void *data, uint32_t format)

	CHANNEL_DECLARE (vchan)

static void	pcm_getparentchannel (struct snddev_info d, struct pcm_channel wrch, struct pcm_channel *rdch)

static int	sysctl_dev_pcm_vchans (SYSCTL_HANDLER_ARGS)

static int	sysctl_dev_pcm_vchanmode (SYSCTL_HANDLER_ARGS)

static int	sysctl_dev_pcm_vchanrate (SYSCTL_HANDLER_ARGS)

static int	sysctl_dev_pcm_vchanformat (SYSCTL_HANDLER_ARGS)

int	vchan_create (struct pcm_channel *parent, int num)

int	vchan_destroy (struct pcm_channel *c)

int	vchan_sync (struct pcm_channel *c)

void	vchan_initsys (device_t dev)

Variables
static kobj_method_t	vchan_methods []

Macro Definition Documentation

◆ DIGFMTS_MAX

#define DIGFMTS_MAX 2

Definition at line 46 of file vchan.c.

◆ FMTLIST_MAX

#define FMTLIST_MAX 6

Definition at line 44 of file vchan.c.

◆ FMTLIST_OFFSET

#define FMTLIST_OFFSET 4

Definition at line 45 of file vchan.c.

◆ VCHAN_ACCESSIBLE

#define VCHAN_ACCESSIBLE ( c )

Value:

                                 (!((c)->flags & (CHN_F_PASSTHROUGH |   \
                                 CHN_F_EXCLUSIVE)) &&                   \
                                 (((c)->flags & CHN_F_VCHAN_DYNAMIC) || \
                                 CHN_STOPPED(c)))

Definition at line 440 of file vchan.c.

◆ VCHAN_FMT_HINT

#define VCHAN_FMT_HINT ( x )

Value:

((x) == PCMDIR_PLAY_VIRTUAL) ? \

"play.vchanformat" : "rec.vchanformat"

PCMDIR_PLAY_VIRTUAL

#define PCMDIR_PLAY_VIRTUAL

Definition: channel.h:340

Definition at line 661 of file vchan.c.

◆ VCHAN_SPD_HINT

#define VCHAN_SPD_HINT ( x )

Value:

((x) == PCMDIR_PLAY_VIRTUAL) ? \

"play.vchanrate" : "rec.vchanrate"

Definition at line 663 of file vchan.c.

Function Documentation

◆ CHANNEL_DECLARE()

CHANNEL_DECLARE ( vchan )

◆ pcm_getparentchannel()

static void pcm_getparentchannel	(	struct snddev_info *	d,
		struct pcm_channel **	wrch,
		struct pcm_channel **	rdch
	)

static

Definition at line 254 of file vchan.c.

References c, pcm_channel::channels, CHN_F_HAS_VCHAN, CHN_F_VIRTUAL, CHN_FOREACH, CHN_LOCK, CHN_UNLOCK, pcm_channel::direction, pcm_channel::flags, pcm_channel::parentchannel, PCM_BUSYASSERT, PCM_UNLOCKASSERT, and PCMDIR_PLAY.

Referenced by sysctl_dev_pcm_vchanformat(), sysctl_dev_pcm_vchanmode(), and sysctl_dev_pcm_vchanrate().

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◆ SND_DECLARE_FILE()

SND_DECLARE_FILE ( "$FreeBSD$" )

◆ sysctl_dev_pcm_vchanformat()

static int sysctl_dev_pcm_vchanformat ( SYSCTL_HANDLER_ARGS )

static

Definition at line 553 of file vchan.c.

References AFMT_VCHAN, AFMTSTR_LEN, c, pcm_channel::children, chn_abort(), CHN_F_DIRTY, CHN_FOREACH, CHN_LOCK, chn_reset(), chn_start(), CHN_STARTED, CHN_UNLOCK, pcm_channel::direction, pcm_channel::flags, snddev_info::flags, pcm_channel::format, PCM_ACQUIRE, pcm_devclass, pcm_getparentchannel(), PCM_LOCK, PCM_REGISTERED, PCM_RELEASE_QUICK, PCM_UNLOCK, PCM_WAIT, PCMDIR_PLAY, PCMDIR_REC, snddev_info::pvchancount, snddev_info::pvchanformat, req, snddev_info::rvchancount, snddev_info::rvchanformat, SD_F_AUTOVCHAN, snd_afmt2str(), snd_str2afmt(), pcm_channel::speed, VCHAN_ACCESSIBLE, VCHAN_PLAY, VCHAN_REC, vchan_sync(), VCHAN_SYNC_REQUIRED, VCHAN_SYSCTL_DIR, and VCHAN_SYSCTL_UNIT.

Referenced by vchan_initsys().

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◆ sysctl_dev_pcm_vchanmode()

static int sysctl_dev_pcm_vchanmode ( SYSCTL_HANDLER_ARGS )

static

Definition at line 351 of file vchan.c.

References c, CHN_F_PASSTHROUGH, CHN_F_VCHAN_ADAPTIVE, CHN_F_VCHAN_DYNAMIC, CHN_F_VCHAN_PASSTHROUGH, CHN_LOCK, CHN_UNLOCK, pcm_channel::direction, pcm_channel::flags, snddev_info::flags, PCM_ACQUIRE, pcm_devclass, pcm_getparentchannel(), PCM_LOCK, PCM_REGISTERED, PCM_RELEASE_QUICK, PCM_UNLOCK, PCM_WAIT, PCMDIR_PLAY, PCMDIR_REC, req, SD_F_AUTOVCHAN, VCHAN_PLAY, VCHAN_REC, VCHAN_SYSCTL_DIR, and VCHAN_SYSCTL_UNIT.

Referenced by vchan_initsys().

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◆ sysctl_dev_pcm_vchanrate()

static int sysctl_dev_pcm_vchanrate ( SYSCTL_HANDLER_ARGS )

static

Definition at line 445 of file vchan.c.

References pcm_channel::busy, c, pcmchan_caps::caps, chn_abort(), CHN_F_DIRTY, CHN_FOREACH, chn_getcaps(), CHN_LOCK, chn_reset(), chn_start(), CHN_STARTED, CHN_UNLOCK, pcm_channel::devinfo, pcm_channel::direction, feeder_rate_max, feeder_rate_min, feeder_rate_round, pcm_channel::flags, snddev_info::flags, pcm_channel::format, pcm_channel::methods, PCM_ACQUIRE, pcm_devclass, pcm_getparentchannel(), PCM_LOCK, PCM_REGISTERED, PCM_RELEASE_QUICK, PCM_UNLOCK, PCM_WAIT, PCMDIR_PLAY, PCMDIR_REC, snddev_info::pvchancount, snddev_info::pvchanrate, RANGE, req, snddev_info::rvchancount, snddev_info::rvchanrate, SD_F_AUTOVCHAN, pcm_channel::speed, VCHAN_ACCESSIBLE, VCHAN_PLAY, VCHAN_REC, vchan_sync(), VCHAN_SYNC_REQUIRED, VCHAN_SYSCTL_DIR, and VCHAN_SYSCTL_UNIT.

Referenced by vchan_initsys().

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◆ sysctl_dev_pcm_vchans()

static int sysctl_dev_pcm_vchans ( SYSCTL_HANDLER_ARGS )

static

Definition at line 296 of file vchan.c.

References snddev_info::flags, PCM_ACQUIRE, pcm_devclass, PCM_LOCK, PCM_REGISTERED, PCM_RELEASE_QUICK, pcm_setvchans(), PCM_UNLOCK, PCM_WAIT, PCMDIR_PLAY, PCMDIR_REC, snddev_info::playcount, snddev_info::pvchancount, snddev_info::reccount, req, snddev_info::rvchancount, SD_F_AUTOVCHAN, SND_MAXVCHANS, VCHAN_PLAY, VCHAN_REC, VCHAN_SYSCTL_DIR, and VCHAN_SYSCTL_UNIT.

Referenced by vchan_initsys().

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◆ vchan_create()

int vchan_create	(	struct pcm_channel *	parent,
		int	num
	)

Definition at line 667 of file vchan.c.

References AFMT_PASSTHROUGH, AFMT_VCHAN, CHN_F_BUSY, CHN_F_HAS_VCHAN, CHN_F_VCHAN_PASSTHROUGH, chn_getcaps(), CHN_INSERT_SORT_DESCEND, CHN_LOCK, CHN_LOCKASSERT, CHN_REMOVE, chn_reset(), CHN_UNLOCK, pcm_channel::dev, pcm_channel::devinfo, pcm_channel::direction, feeder_rate_max, feeder_rate_min, feeder_rate_round, pcm_channel::flags, pcmchan_caps::fmtlist, pcm_channel::format, pcmchan_caps::maxspeed, pcm_channel::methods, pcmchan_caps::minspeed, pcm_channel::parentsnddev, PCM_BUSYASSERT, pcm_chn_add(), pcm_chn_create(), pcm_chn_destroy(), pcm_chn_remove(), PCM_LOCK, PCM_UNLOCK, PCMDIR_PLAY, PCMDIR_PLAY_VIRTUAL, PCMDIR_REC, PCMDIR_REC_VIRTUAL, snddev_info::pvchanformat, snddev_info::pvchanrate, r, RANGE, snddev_info::rvchanformat, snddev_info::rvchanrate, snd_fmtvalid(), snd_str2afmt(), pcm_channel::speed, VCHAN_DEFAULT_FORMAT, VCHAN_DEFAULT_RATE, VCHAN_FMT_HINT, and VCHAN_SPD_HINT.

Referenced by pcm_setvchans().

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◆ vchan_destroy()

int vchan_destroy ( struct pcm_channel * c )

Definition at line 852 of file vchan.c.

References c, CHN_EMPTY, CHN_F_BUSY, CHN_F_HAS_VCHAN, CHN_LOCK, CHN_LOCKASSERT, CHN_REMOVE, chn_reset(), CHN_UNLOCK, pcm_channel::flags, pcm_channel::format, pcm_channel::parentchannel, pcm_channel::parentsnddev, PCM_BUSYASSERT, pcm_chn_destroy(), pcm_chn_remove(), PCM_LOCK, PCM_UNLOCK, and pcm_channel::speed.

Referenced by pcm_setvchans().

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◆ vchan_free()

static int vchan_free	(	kobj_t	obj,
		void *	data
	)

static

Definition at line 102 of file vchan.c.

References data, and free.

◆ vchan_getcaps()

static struct pcmchan_caps * vchan_getcaps	(	kobj_t	obj,
		void *	data
	)

static

Definition at line 188 of file vchan.c.

References AFMT_PASSTHROUGH, AFMT_VCHAN, c, vchan_info::caps, vchan_info::channel, CHN_F_VCHAN_DYNAMIC, CHN_LOCKASSERT, data, pcm_channel::dev, pcm_channel::flags, pcmchan_caps::fmtlist, vchan_info::fmtlist, FMTLIST_OFFSET, pcm_channel::format, pcmchan_caps::maxspeed, pcmchan_caps::minspeed, pcm_channel::parentchannel, pcm_channel::speed, and VCHAN_DEFAULT_FORMAT.

◆ vchan_getmatrix()

static struct pcmchan_matrix * vchan_getmatrix	(	kobj_t	obj,
		void *	data,
		uint32_t	format
	)

static

Definition at line 235 of file vchan.c.

References feeder_matrix_format_map(), and format.

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◆ vchan_init()

static void * vchan_init	(	kobj_t	obj,
		void *	devinfo,
		struct snd_dbuf *	b,
		struct pcm_channel *	c,
		int	dir
	)

static

Definition at line 63 of file vchan.c.

References AFMT_PASSTHROUGH, AFMT_VCHAN, c, vchan_info::caps, vchan_info::channel, CHN_F_VCHAN_DYNAMIC, CHN_F_VIRTUAL, chn_getcaps(), CHN_LOCK, CHN_UNLOCK, DIGFMTS_MAX, dir, pcm_channel::flags, pcmchan_caps::fmtlist, vchan_info::fmtlist, FMTLIST_OFFSET, pcm_channel::format, pcm_channel::parentchannel, PCMDIR_PLAY, PCMDIR_REC, PCMTRIG_STOP, vchan_info::trigger, and VCHAN_DEFAULT_FORMAT.

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◆ vchan_initsys()

void vchan_initsys ( device_t dev )

Definition at line 940 of file vchan.c.

References dev, snddev_info::play_sysctl_tree, snddev_info::rec_sysctl_ctx, snddev_info::rec_sysctl_tree, sysctl_dev_pcm_vchanformat(), sysctl_dev_pcm_vchanmode(), sysctl_dev_pcm_vchanrate(), sysctl_dev_pcm_vchans(), VCHAN_SYSCTL_DATA, and VCHAN_SYSCTL_DATA_SIZE.

Referenced by pcm_sysinit().

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◆ vchan_setformat()

static int vchan_setformat	(	kobj_t	obj,
		void *	data,
		uint32_t	format
	)

static

Definition at line 111 of file vchan.c.

References vchan_info::caps, vchan_info::channel, CHN_LOCKASSERT, data, pcmchan_caps::fmtlist, format, and snd_fmtvalid().

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◆ vchan_setspeed()

static uint32_t vchan_setspeed	(	kobj_t	obj,
		void *	data,
		uint32_t	speed
	)

static

Definition at line 126 of file vchan.c.

References vchan_info::caps, vchan_info::channel, CHN_LOCKASSERT, data, and pcmchan_caps::maxspeed.

◆ vchan_sync()

int vchan_sync ( struct pcm_channel * c )

Definition at line 906 of file vchan.c.

References buf, pcm_channel::bufhard, c, CHN_F_DIRTY, CHN_F_PASSTHROUGH, CHN_F_VIRTUAL, CHN_LOCKASSERT, CHN_NAMELEN, pcm_channel::comm, pcm_channel::dev, dsp_unit2name(), feeder_chain(), pcm_channel::flags, pcm_channel::parentchannel, sndbuf_setspd(), pcm_channel::speed, and pcm_channel::unit.

Referenced by chn_notify(), feed_mixer_feed(), feed_mixer_rec(), sysctl_dev_pcm_vchanformat(), sysctl_dev_pcm_vchanrate(), and vchan_trigger().

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◆ vchan_trigger()

static int vchan_trigger	(	kobj_t	obj,
		void *	data,
		int	go
	)

static

Definition at line 138 of file vchan.c.

References c, vchan_info::channel, pcm_channel::children, CHN_INSERT_HEAD, CHN_LOCK, CHN_LOCKASSERT, CHN_N_TRIGGER, chn_notify(), CHN_REMOVE, CHN_UNLOCK, data, go, pcm_channel::parentchannel, PCMTRIG_ABORT, PCMTRIG_COMMON, PCMTRIG_START, PCMTRIG_STOP, vchan_info::trigger, vchan_sync(), and VCHAN_SYNC_REQUIRED.

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Variable Documentation

◆ vchan_methods

kobj_method_t vchan_methods[]

static

Initial value:

= {
        KOBJMETHOD(channel_init,                vchan_init),
        KOBJMETHOD(channel_free,                vchan_free),
        KOBJMETHOD(channel_setformat,           vchan_setformat),
        KOBJMETHOD(channel_setspeed,            vchan_setspeed),
        KOBJMETHOD(channel_trigger,             vchan_trigger),
        KOBJMETHOD(channel_getcaps,             vchan_getcaps),
        KOBJMETHOD(channel_getmatrix,           vchan_getmatrix),
        KOBJMETHOD_END
}

Definition at line 241 of file vchan.c.

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ DIGFMTS_MAX

◆ FMTLIST_MAX

◆ FMTLIST_OFFSET

◆ VCHAN_ACCESSIBLE

◆ VCHAN_FMT_HINT

◆ VCHAN_SPD_HINT

Function Documentation

◆ CHANNEL_DECLARE()

◆ pcm_getparentchannel()

◆ SND_DECLARE_FILE()

◆ sysctl_dev_pcm_vchanformat()

◆ sysctl_dev_pcm_vchanmode()

◆ sysctl_dev_pcm_vchanrate()

◆ sysctl_dev_pcm_vchans()

◆ vchan_create()

◆ vchan_destroy()

◆ vchan_free()

◆ vchan_getcaps()

◆ vchan_getmatrix()

◆ vchan_init()

◆ vchan_initsys()

◆ vchan_setformat()

◆ vchan_setspeed()

◆ vchan_sync()

◆ vchan_trigger()

Variable Documentation

◆ vchan_methods