#include <channel.h>

Collaboration diagram for pcm_channel:

[legend]

Data Fields
kobj_t	methods

pid_t	pid

int	refcount

struct pcm_feeder *	feeder

u_int32_t	align

int	latency

u_int32_t	speed

u_int32_t	format

u_int32_t	flags

u_int32_t	feederflags

u_int64_t	blocks

int	direction

unsigned int	interrupts

unsigned int	xruns

unsigned int	feedcount

unsigned int	timeout

struct snd_dbuf *	bufhard

struct snd_dbuf *	bufsoft

struct snddev_info *	parentsnddev

struct pcm_channel *	parentchannel

void *	devinfo

device_t	dev

int	unit

char	name [CHN_NAMELEN]

char	comm [MAXCOMLEN+1]

struct mtx *	lock

int	trigger

struct cv	intr_cv

unsigned int	inprog

struct cv	cv

unsigned int	lw

struct pcmchan_syncmember *	sm

struct {
struct {
} busy

}	children

struct {
struct {
struct {
} busy

struct {
} opened

} pcm

}	channels

struct pcmchan_matrix	matrix

struct pcmchan_matrix	matrix_scratch

int16_t	volume [SND_VOL_C_MAX][SND_CHN_T_VOL_MAX]

int8_t	muted [SND_VOL_C_MAX][SND_CHN_T_VOL_MAX]

void *	data1

void *	data2

Detailed Description

Definition at line 85 of file channel.h.

Field Documentation

◆ align

u_int32_t pcm_channel::align

Definition at line 91 of file channel.h.

◆ blocks

u_int64_t pcm_channel::blocks

Definition at line 98 of file channel.h.

Referenced by chn_resetbuf(), and dsp_ioctl().

◆ bufhard

struct snd_dbuf* pcm_channel::bufhard

Definition at line 103 of file channel.h.

Referenced by chn_abort(), chn_dmaupdate(), chn_flush(), chn_getptr(), chn_init(), chn_kill(), chn_rdfeed(), chn_resetbuf(), chn_resizebuf(), chn_setparam(), chn_start(), chn_sync(), chn_trigger(), chn_wrfeed(), feed_mixer_rec(), feeder_chain(), and vchan_sync().

◆ bufsoft

struct snd_dbuf * pcm_channel::bufsoft

Definition at line 103 of file channel.h.

Referenced by chn_abort(), chn_init(), chn_kill(), chn_poll(), chn_pollreset(), chn_polltrigger(), chn_rdfeed(), chn_read(), chn_resetbuf(), chn_resizebuf(), chn_start(), chn_sync(), chn_wakeup(), chn_wrfeed(), chn_write(), dsp_ioctl(), dsp_mmap_single(), feed_mixer_feed(), feed_mixer_rec(), and feeder_chain().

◆ [1/2]

struct { ... } pcm_channel::busy

Referenced by chn_init(), chn_notify(), feed_mixer_rec(), and sysctl_dev_pcm_vchanrate().

◆ [2/2]

struct { ... } pcm_channel::busy

◆

struct { ... } pcm_channel::channels

Referenced by chn_vpc_proc(), dsp_clone(), dsp_get_volume_channel(), mixer_ioctl_channel(), mixer_set_softpcmvol(), pcm_chn_create(), pcm_chn_remove(), pcm_chnalloc(), pcm_getparentchannel(), pcm_killchan(), pcm_unregister(), sndstat_get_caps(), and sound_oss_sysinfo().

◆

struct { ... } pcm_channel::children

Referenced by chn_wakeup(), feed_mixer_feed(), sysctl_dev_pcm_vchanformat(), and vchan_trigger().

◆ comm

char pcm_channel::comm[MAXCOMLEN+1]

Definition at line 110 of file channel.h.

Referenced by pcm_chn_create(), pcm_chnalloc(), pcm_chnrelease(), and vchan_sync().

◆ cv

struct cv pcm_channel::cv

Special channel operations should examine inprog after acquiring lock. If zero, operations may continue. Else, thread should wait on this cv for previous operation to finish.

Definition at line 127 of file channel.h.

Referenced by chn_lockdestroy(), chn_lockinit(), and dsp_ioctl().

◆ data1

void* pcm_channel::data1

Definition at line 172 of file channel.h.

◆ data2

void * pcm_channel::data2

Definition at line 172 of file channel.h.

◆ dev

device_t pcm_channel::dev

Definition at line 107 of file channel.h.

Referenced by chn_dmaupdate(), chn_init(), chn_read(), chn_reset(), chn_resizebuf(), chn_setformat(), chn_setspeed(), chn_start(), chn_sync(), chn_syncstate(), chn_trigger(), chn_write(), feeder_build_eq(), feeder_build_format(), feeder_build_matrix(), feeder_build_mixer(), feeder_build_rate(), feeder_build_root(), feeder_build_volume(), feeder_chain(), pcm_chn_create(), pcm_chn_destroy(), vchan_create(), vchan_getcaps(), and vchan_sync().

◆ devinfo

void* pcm_channel::devinfo

Definition at line 106 of file channel.h.

Referenced by chn_getcaps(), chn_getptr(), chn_getrates(), chn_init(), chn_kill(), chn_notify(), chn_oss_getmask(), chn_reset(), chn_resizebuf(), chn_setparam(), chn_trigger(), feeder_chain(), sysctl_dev_pcm_vchanrate(), and vchan_create().

◆ direction

int pcm_channel::direction

◆ feedcount

unsigned int pcm_channel::feedcount

Definition at line 101 of file channel.h.

Referenced by chn_reset(), chn_start(), feed_mixer_feed(), and feed_root().

◆ feeder

struct pcm_feeder* pcm_channel::feeder

Definition at line 90 of file channel.h.

Referenced by chn_addfeeder(), chn_findfeeder(), chn_init(), chn_rdfeed(), chn_removefeeder(), chn_wrfeed(), feed_mixer_feed(), feed_mixer_rec(), feeder_build_eq(), feeder_build_matrix(), feeder_build_rate(), feeder_build_root(), feeder_build_volume(), and feeder_chain().

◆ feederflags

u_int32_t pcm_channel::feederflags

Definition at line 97 of file channel.h.

Referenced by chn_init(), chn_syncstate(), dsp_get_volume_channel(), dsp_ioctl_channel(), feeder_build_eq(), feeder_build_format(), feeder_build_matrix(), feeder_build_mixer(), feeder_build_rate(), feeder_build_root(), feeder_build_volume(), feeder_chain(), mixer_ioctl_channel(), and mixer_set_softpcmvol().

◆ flags

u_int32_t pcm_channel::flags

Definition at line 96 of file channel.h.

Referenced by chn_abort(), chn_flush(), chn_init(), chn_kill(), chn_notify(), chn_poll(), chn_polltrigger(), chn_rdfeed(), chn_read(), chn_reset(), chn_resizebuf(), chn_sleep(), chn_start(), chn_sync(), chn_wakeup(), chn_wrfeed(), chn_write(), dsp_close(), dsp_ioctl(), dsp_mmap_single(), dsp_open(), dsp_oss_audioinfo(), dsp_oss_cookedmode(), dsp_oss_syncgroup(), dsp_oss_syncstart(), dsp_poll(), feed_mixer_feed(), feed_mixer_rec(), feed_root(), feeder_chain(), getchns(), pcm_chnalloc(), pcm_chnrelease(), pcm_getparentchannel(), pcm_setvchans(), snd_clone_alloc(), snd_clone_create(), snd_clone_disable(), snd_clone_enable(), snd_clone_gc(), snd_clone_getflags(), snd_clone_setflags(), snd_clone_unref(), sndstat_get_caps(), sound_oss_sysinfo(), sysctl_dev_pcm_vchanformat(), sysctl_dev_pcm_vchanmode(), sysctl_dev_pcm_vchanrate(), vchan_create(), vchan_destroy(), vchan_getcaps(), vchan_init(), and vchan_sync().

◆ format

u_int32_t pcm_channel::format

Definition at line 95 of file channel.h.

Referenced by chn_getmatrix(), chn_init(), chn_notify(), chn_oss_getorder(), chn_oss_setorder(), chn_setformat(), chn_setmatrix(), chn_setparam(), chn_setspeed(), dsp_ioctl(), feed_mixer_feed(), feeder_chain(), sysctl_dev_pcm_vchanformat(), sysctl_dev_pcm_vchanrate(), vchan_create(), vchan_destroy(), vchan_getcaps(), and vchan_init().

◆ inprog

unsigned int pcm_channel::inprog

Increment,decrement this around operations that temporarily yield lock.

Definition at line 121 of file channel.h.

Referenced by dsp_ioctl().

◆ interrupts

unsigned int pcm_channel::interrupts

Definition at line 101 of file channel.h.

Referenced by chn_intr_locked(), chn_reset(), and chn_start().

◆ intr_cv

struct cv pcm_channel::intr_cv

For interrupt manipulations.

Definition at line 116 of file channel.h.

Referenced by chn_lockdestroy(), chn_lockinit(), chn_sleep(), and chn_wakeup().

◆ latency

int pcm_channel::latency

Definition at line 93 of file channel.h.

Referenced by chn_init(), and chn_resizebuf().

◆ lock

struct mtx* pcm_channel::lock

Definition at line 111 of file channel.h.

Referenced by chn_lockdestroy(), chn_lockinit(), chn_sleep(), dsp_ioctl(), and uaudio_chan_init().

◆ lw

unsigned int pcm_channel::lw

Low water mark for select()/poll().

This is initialized to the channel's fragment size, and will be overwritten if a new fragment size is set. Users may alter this value directly with the SNDCTL_DSP_LOW_WATER ioctl.

Definition at line 135 of file channel.h.

Referenced by chn_polltrigger(), chn_resizebuf(), and dsp_ioctl().