channel_if.m File Reference

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

Include dependency graph for channel_if.m:

Go to the source code of this file.

Variables
INTERFACE	channel
	CODE
METHOD void *	init
void *	devinfo
struct snd_dbuf *	b
struct pcm_channel *	c
int	dir
METHOD int	free
void *	data
DEFAULT	channel_nofree
METHOD int	reset
DEFAULT	channel_noreset
METHOD int	resetdone
DEFAULT	channel_noresetdone
METHOD int	setformat
u_int32_t	format
METHOD u_int32_t	setspeed
u_int32_t	speed
METHOD u_int32_t	setblocksize
u_int32_t	blocksize
METHOD int	setfragments
u_int32_t	blockcount
DEFAULT	channel_nosetfragments
METHOD int	trigger
int	go
METHOD u_int32_t	getptr
DEFAULT	channel_nogetptr
METHOD struct pcmchan_caps *	getcaps
METHOD int	notify
u_int32_t	changed
DEFAULT	channel_nonotify
METHOD int	getpeaks
	Retrieve channel peak values. More...
int *	lpeak
int *	rpeak
DEFAULT	channel_nogetpeaks
METHOD int	getrates
	Retrieve discrete supported sample rates. More...
int **	rates
DEFAULT	channel_nogetrates
METHOD struct pcmchan_matrix *	getmatrix
DEFAULT	channel_nogetmatrix
METHOD int	setmatrix
struct pcmchan_matrix *	m
DEFAULT	channel_nosetmatrix

Variable Documentation

b

struct snd_dbuf* b

Definition at line 105 of file channel_if.m.

Referenced by ad1816chan_init(), alschan_init(), aoa_chan_init(), atiixp_chan_init(), audio_soc_chan_init(), chn_abort(), chn_dmaupdate(), chn_flush(), chn_init(), chn_kill(), chn_rdfeed(), chn_resetbuf(), chn_resizebuf(), chn_start(), chn_sync(), chn_trigger(), chn_wrfeed(), cmi_mwrite(), cmichan_init(), cs4281chan_init(), csachan_init(), csamidi_mwrite(), dsp_ioctl(), emu_mwrite(), emu_vinit(), emufxrchan_init(), emupchan_init(), emurchan_init(), envy24chan_init(), envy24htchan_init(), eschan_init(), eschan_trigger(), esschan_init(), feed_eq_feed(), feed_format_feed(), feed_matrix_feed(), feed_mixer_feed(), feed_mixer_rec(), feed_volume_feed(), fm801ch_init(), gcd(), hdaa_channel_init(), hdspechan_init(), ichchan_init(), lcm(), m3_pchan_init(), m3_rchan_init(), mpu401_intr(), msschan_init(), nmchan_init(), sb16chan_init(), sb_reset_dsp(), sbchan_init(), sndbuf_acquire(), sndbuf_alloc(), sndbuf_clear(), sndbuf_clearshadow(), sndbuf_create(), sndbuf_destroy(), sndbuf_dispose(), sndbuf_dma(), sndbuf_dmabounce(), sndbuf_dmaptr(), sndbuf_dmasetdir(), sndbuf_dmasetup(), sndbuf_dump(), sndbuf_fillsilence(), sndbuf_fillsilence_rl(), sndbuf_free(), sndbuf_getalign(), sndbuf_getallocsize(), sndbuf_getblkcnt(), sndbuf_getblksz(), sndbuf_getblocks(), sndbuf_getbps(), sndbuf_getbuf(), sndbuf_getbufofs(), sndbuf_getflags(), sndbuf_getfmt(), sndbuf_getfree(), sndbuf_getfreeptr(), sndbuf_gethwptr(), sndbuf_getmaxsize(), sndbuf_getprevblocks(), sndbuf_getprevtotal(), sndbuf_getready(), sndbuf_getreadyptr(), sndbuf_getsel(), sndbuf_getsize(), sndbuf_getspd(), sndbuf_gettotal(), sndbuf_getxrun(), sndbuf_remalloc(), sndbuf_reset(), sndbuf_resize(), sndbuf_runsz(), sndbuf_setblkcnt(), sndbuf_setblksz(), sndbuf_setflags(), sndbuf_setfmt(), sndbuf_sethwptr(), sndbuf_setmap(), sndbuf_setrun(), sndbuf_setspd(), sndbuf_setup(), sndbuf_setxrun(), sndbuf_softreset(), sndbuf_updateprevtotal(), svchan_init(), trpchan_init(), trrchan_init(), ua_chan_init(), uaudio_chan_init(), umidi_convert_to_usb(), via8233dxs_init(), via8233msgd_init(), via8233wr_init(), viachan_init(), z_resampler_feed(), and z_resampler_feed_internal().

blockcount

u_int32_t blockcount

Definition at line 147 of file channel_if.m.

Referenced by ua_chan_setfragments(), and uaudio_chan_play_callback().

blocksize

u_int32_t blocksize

Definition at line 140 of file channel_if.m.

Referenced by ad1816chan_setblocksize(), alschan_setblocksize(), cmichan_setblocksize(), cs4281chan_setblocksize(), emufxrchan_setblocksize(), emupchan_setblocksize(), emurchan_setblocksize(), envy24chan_setblocksize(), envy24htchan_setblocksize(), esschan_setblocksize(), fm801ch_setblocksize(), hdspechan_setblocksize(), ichchan_setblocksize(), m3_pchan_setblocksize(), m3_rchan_setblocksize(), msschan_setblocksize(), nmchan_setblocksize(), sb16chan_setblocksize(), sbchan_setblocksize(), svchan_setblocksize(), trpchan_setblocksize(), trrchan_setblocksize(), ua_chan_setblocksize(), ua_chan_setfragments(), and viachan_setblocksize().

c

struct pcm_channel* c

Definition at line 106 of file channel_if.m.

Referenced by ad1816_intr(), ad1816chan_init(), alschan_init(), aoa_chan_init(), atiixp_chan_init(), audio_soc_chan_init(), chn_abort(), chn_addfeeder(), chn_dmaupdate(), chn_findfeeder(), chn_flush(), chn_getcaps(), chn_getformats(), chn_getmatrix(), chn_getmute_matrix(), chn_getptr(), chn_getrates(), chn_getvolume_matrix(), chn_init(), chn_intr(), chn_intr_locked(), chn_kill(), chn_lockdestroy(), chn_lockinit(), chn_notify(), chn_oss_getmask(), chn_oss_getorder(), chn_oss_setorder(), chn_poll(), chn_pollreset(), chn_polltrigger(), chn_rdfeed(), chn_rdintr(), chn_read(), chn_removefeeder(), chn_reset(), chn_resetbuf(), chn_resizebuf(), chn_setblocksize(), chn_setformat(), chn_setlatency(), chn_setmatrix(), chn_setmute_matrix(), chn_setmute_multi(), chn_setparam(), chn_setspeed(), chn_setvolume(), chn_setvolume_matrix(), chn_setvolume_multi(), chn_sleep(), chn_start(), chn_sync(), chn_syncdestroy(), chn_syncstate(), chn_trigger(), chn_vpc_proc(), chn_vpc_reset(), chn_wakeup(), chn_wrfeed(), chn_wrintr(), chn_write(), cmichan_init(), cs4281chan_init(), csachan_init(), dsp_clone(), dsp_get_volume_channel(), dsp_mmap_single(), dsp_oss_syncstart(), dsp_stdclone(), emufxrchan_init(), emupchan_init(), emurchan_init(), envy24chan_init(), envy24htchan_init(), eschan_init(), esschan_init(), feed_eq_feed(), feed_format_feed(), feed_matrix_feed(), feed_mixer_feed(), feed_mixer_rec(), feed_volume_feed(), feeder_build_eq(), feeder_build_format(), feeder_build_formatne(), feeder_build_matrix(), feeder_build_mixer(), feeder_build_rate(), feeder_build_root(), feeder_build_volume(), feeder_chain(), fm801ch_init(), gcd(), hdaa_audio_setup(), hdaa_chan_formula(), hdaa_channel_init(), hdspechan_init(), ichchan_init(), m3_pchan_init(), m3_rchan_init(), midisynth_bender(), midisynth_controller(), midisynth_killnote(), midisynth_setinstr(), midisynth_startnote(), mixer_ioctl_channel(), mixer_set_eq(), mixer_set_softpcmvol(), mss_intr(), msschan_init(), nmchan_init(), opti931_intr(), opti_detect(), pcm_chnalloc(), pcm_chnref(), pcm_chnrelease(), pcm_getparentchannel(), pcm_setvchans(), sb16chan_init(), sb_intr(), sbchan_init(), snd_c2unit(), snd_clone_alloc(), snd_clone_busy(), snd_clone_create(), snd_clone_destroy(), snd_clone_disable(), snd_clone_enable(), snd_clone_gc(), snd_clone_getdeadline(), snd_clone_getflags(), snd_clone_getmaxunit(), snd_clone_getsize(), snd_clone_ref(), snd_clone_setdeadline(), snd_clone_setflags(), snd_clone_setmaxunit(), snd_clone_unref(), snd_max_c(), snd_mkunit(), snd_unit2c(), sndstat_get_caps(), sound_oss_sysinfo(), svchan_init(), sysctl_dev_pcm_eq(), sysctl_dev_pcm_eq_preamp(), sysctl_dev_pcm_vchanformat(), sysctl_dev_pcm_vchanmode(), sysctl_dev_pcm_vchanrate(), sysctl_hw_snd_feeder_rate_quality(), trpchan_init(), trrchan_init(), ua_chan_init(), uaudio20_mixer_add_mixer(), uaudio_chan_init(), uaudio_mixer_add_mixer(), vchan_destroy(), vchan_getcaps(), vchan_init(), vchan_sync(), vchan_trigger(), via8233dxs_init(), via8233msgd_init(), via8233wr_init(), viachan_init(), z_resampler_build_polyphase(), z_resampler_feed(), z_resampler_feed_internal(), and z_resampler_sinc_len().

changed

u_int32_t changed

Definition at line 169 of file channel_if.m.

channel

INTERFACE channel

Definition at line 35 of file channel_if.m.

Referenced by ac97_setmixer(), ac97_setrecsrc(), emu_enastop(), emu_vstop(), midi_init(), sndbuf_create(), sndbuf_feed(), and sv_channel_gain().

channel_nofree

DEFAULT channel_nofree

Definition at line 113 of file channel_if.m.

channel_nogetmatrix

DEFAULT channel_nogetmatrix

Definition at line 227 of file channel_if.m.

channel_nogetpeaks

DEFAULT channel_nogetpeaks

Definition at line 197 of file channel_if.m.

channel_nogetptr

DEFAULT channel_nogetptr

Definition at line 159 of file channel_if.m.

channel_nogetrates

DEFAULT channel_nogetrates

Definition at line 221 of file channel_if.m.

channel_nonotify

DEFAULT channel_nonotify

Definition at line 170 of file channel_if.m.

channel_noreset

DEFAULT channel_noreset

Definition at line 118 of file channel_if.m.

channel_noresetdone

DEFAULT channel_noresetdone

Definition at line 123 of file channel_if.m.

channel_nosetfragments

DEFAULT channel_nosetfragments

Definition at line 148 of file channel_if.m.

channel_nosetmatrix

DEFAULT channel_nosetmatrix

Definition at line 233 of file channel_if.m.

CODE

CODE

Definition at line 37 of file channel_if.m.

data

void* data

Definition at line 112 of file channel_if.m.

devinfo

void* devinfo

Definition at line 104 of file channel_if.m.

dir

int dir

Definition at line 107 of file channel_if.m.

format

u_int32_t format

Definition at line 128 of file channel_if.m.

free

METHOD int free

Initial value:

{
        kobj_t obj

Definition at line 110 of file channel_if.m.

Referenced by ac97_destroy(), ad1816_release_resources(), als_pci_attach(), als_pci_detach(), aoa_dma_delete(), atiixp_release_resource(), audio_soc_chan_free(), audio_soc_chan_init(), audio_soc_detach(), chn_syncdestroy(), clkrun_hack(), cmi_attach(), cmi_detach(), cs4281_pci_attach(), cs4281_pci_detach(), csa_detach(), csa_releaseres(), dsp_cdevinfo_flush(), dsp_cdevinfo_free(), dsp_oss_syncgroup(), dsp_oss_syncstart(), emu_memalloc(), emu_memfree(), emu_pci_attach(), emu_pci_detach(), emu_pcm_attach(), emu_pcm_detach(), emu_rm_uninit(), envy24_cfgfree(), envy24_delta_ak4524_create(), envy24_delta_ak4524_destroy(), envy24_pci_attach(), envy24_pci_detach(), envy24chan_free(), envy24ht_cfgfree(), envy24ht_pci_attach(), envy24ht_pci_detach(), envy24ht_spi_create(), envy24ht_spi_destroy(), envy24htchan_free(), es_pci_attach(), es_pci_detach(), ess_release_resources(), feed_eq_free(), feed_format_free(), feed_matrix_free(), feed_matrix_init(), feed_volume_free(), feed_volume_init(), feeder_unregisterall(), fm801_pci_attach(), fm801_pci_detach(), hdaa_audio_bind_as(), hdaa_detach(), hdaa_eld_handler(), hdaa_unconfigure(), hdac_attach(), hdac_detach(), hdacc_detach(), hdacc_pindump(), hdspe_intr(), hdspe_running(), hdspechan_free(), i2s_postattach(), ich_pci_attach(), ich_pci_detach(), m3_pci_attach(), m3_pci_detach(), midi_destroy(), midi_init(), mpu401_init(), mpu401_uninit(), mss_release_resources(), nm_pci_attach(), nm_pci_detach(), nm_pci_probe(), pcm_chn_create(), pcm_chn_destroy(), pnpmss_attach(), sb16_release_resources(), sb_release_resources(), seq_addunit(), seq_delunit(), snd_clone_destroy(), snd_clone_gc(), snd_mtxfree(), sndbuf_destroy(), sndbuf_free(), sndbuf_remalloc(), sndbuf_resize(), sndstat_close(), sndstat_get_devs(), sndstat_line2userdev(), sndstat_open(), sndstat_refresh_devs(), sndstat_remove_all_userdevs(), sndstat_unpack_user_nvlbuf(), sndstat_unregister(), sndstat_unregisterfile(), spicds_destroy(), sv_detach(), sysctl_hdac_pindump(), tr_pci_attach(), tr_pci_detach(), uaudio_chan_free(), uaudio_hid_probe(), uaudio_mixer_ctl_free(), uaudio_mixer_fill_info(), vchan_free(), via_attach(), via_detach(), z_resampler_build_polyphase(), z_resampler_free(), z_resampler_init(), z_resampler_reset(), and z_resampler_setup().

getcaps

METHOD struct pcmchan_caps* getcaps

Initial value:

{
        kobj_t obj

Definition at line 161 of file channel_if.m.

getmatrix

METHOD struct pcmchan_matrix* getmatrix

Initial value:

{
        kobj_t obj

Definition at line 223 of file channel_if.m.

getpeaks

METHOD int getpeaks

Initial value:

{
        kobj_t obj

Retrieve channel peak values.

This function is intended to obtain peak volume values for samples played/recorded on a channel. Values are on a linear scale from 0 to

1. If the channel is monaural, a single value should be recorded in lpeak.

If hardware support isn't available, the SNDCTL_DSP_GET[IO]PEAKS operation should return EINVAL. However, we may opt to provide software support that the user may toggle via sysctl/mixext.

Parameters

obj	standard kobj object (usually channel->methods)
data	driver-specific data (usually channel->devinfo)
lpeak	pointer to store left peak level
rpeak	pointer to store right peak level

Return values

-1	Error; usually operation isn't supported.
0	success

Definition at line 192 of file channel_if.m.

getptr

METHOD u_int32_t getptr

Initial value:

{
        kobj_t obj

Definition at line 156 of file channel_if.m.

getrates

METHOD int getrates

Initial value:

{
        kobj_t obj

Retrieve discrete supported sample rates.

Some cards operate at fixed rates, and this call is intended to retrieve those rates primarily for when in-kernel rate adjustment is undesirable (e.g., application wants direct DMA access after setting a channel to run "uncooked").

The parameter rates is a double pointer which will be reset to point to an array of supported sample rates. The number of elements in the array is returned to the caller.

Parameters

obj	standard kobj object (usually channel->methods)
data	driver-specific data (usually channel->devinfo)
rates	rate array pointer

Returns

Number of rates in the array

Definition at line 217 of file channel_if.m.

go

int go

Definition at line 153 of file channel_if.m.

init

METHOD void* init

Initial value:

{
        kobj_t obj

Definition at line 102 of file channel_if.m.

lpeak

int* lpeak

Definition at line 195 of file channel_if.m.

Referenced by dsp_ioctl().

m

struct pcmchan_matrix* m

Definition at line 232 of file channel_if.m.

Referenced by ac97mix_init(), ac97mix_reinit(), ac97mix_set(), ac97mix_setrecsrc(), ac97mix_uninit(), ad1816mix_init(), ad1816mix_set(), ad1816mix_setrecsrc(), alsmix_init(), alsmix_set(), alsmix_setrecsrc(), aoagpio_probe(), burgundy_init(), burgundy_set(), chn_oss_getmask(), chn_oss_setorder(), chn_setmatrix(), chn_syncstate(), cmimix_init(), cmimix_set(), cmimix_setrecsrc(), cmpdesc(), dsp_ioctl(), emu_dspmixer_init(), emu_dspmixer_set(), emu_dspmixer_setrecsrc(), emu_dspmixer_uninit(), emu_efxmixer_init(), emu_vinit(), envy24htmixer_init(), envy24htmixer_reinit(), envy24htmixer_set(), envy24htmixer_setrecsrc(), envy24htmixer_uninit(), envy24mixer_init(), envy24mixer_reinit(), envy24mixer_set(), envy24mixer_setrecsrc(), envy24mixer_uninit(), es1370_mixinit(), es1370_mixset(), es1370_mixsetrecsrc(), essmix_init(), essmix_set(), essmix_setrecsrc(), feed_volume_init(), feed_volume_set(), feeder_default_matrix(), feeder_matrix_default_format(), feeder_matrix_oss_get_channel_order(), feeder_matrix_oss_set_channel_order(), feeder_volume_apply_matrix(), hdaa_audio_ctl_ossmixer_init(), hdaa_audio_ctl_ossmixer_set(), hdaa_audio_ctl_ossmixer_setrecsrc(), hdaa_audio_trace_adc(), hdaa_audio_trace_dac(), hdaa_channels_handler(), hdspemixer_init(), hdspemixer_set(), midi_close(), midi_destroy(), midi_in(), midi_init(), midi_open(), midi_out(), midi_poll(), midi_read(), midi_uninit(), midi_unload(), midi_write(), midimapper_fetch_synth(), midimapper_open(), midistat_prepare(), midisynth_close(), midisynth_open(), midisynth_writeraw(), mix_get(), mix_get_dev(), mix_get_locked(), mix_get_type(), mix_getchild(), mix_getdevinfo(), mix_getdevs(), mix_getmutedevs(), mix_getparent(), mix_getrecdevs(), mix_getrecsrc(), mix_set(), mix_set_locked(), mix_setdevs(), mix_setparentchild(), mix_setrealdev(), mix_setrecdevs(), mix_setrecsrc(), mixer_busy(), mixer_close(), mixer_create(), mixer_delete(), mixer_get_lock(), mixer_get_recroute(), mixer_hwvol_init(), mixer_hwvol_mute(), mixer_hwvol_mute_locked(), mixer_hwvol_step(), mixer_hwvol_step_locked(), mixer_init(), mixer_ioctl_channel(), mixer_ioctl_cmd(), mixer_mixerinfo(), mixer_obj_create(), mixer_open(), mixer_oss_mixerinfo(), mixer_reinit(), mixer_set(), mixer_set_eq(), mixer_set_recroute(), mixer_set_softpcmvol(), mixer_uninit(), mpu401_init(), mpu401_intr(), mpu401_mcallback(), mpu401_minit(), mpu401_muninit(), mpu401_timeout(), mpu401_uninit(), mss_trigger(), mssmix_init(), mssmix_set(), mssmix_setrecsrc(), onyx_init(), onyx_set(), sb16mix_init(), sb16mix_set(), sb16mix_setrecsrc(), sbmix_init(), sbmix_set(), sbpromix_init(), sbpromix_set(), sbpromix_setrecsrc(), screamer_init(), screamer_set(), seq_processevent(), seq_reset(), snapper_init(), snapper_set(), snd_mtxassert(), snd_mtxcreate(), snd_mtxfree(), sndstat_line2userdev(), sv_mix_init(), sv_mix_set(), sv_mix_setrecsrc(), sv_set_recspeed(), sysctl_es137x_single_pcm_mixer(), sysctl_hw_snd_hwvol_mixer(), tumbler_init(), tumbler_set(), ua_mixer_init(), ua_mixer_set(), ua_mixer_setrecsrc(), ua_mixer_uninit(), uaudio_chan_record_callback(), uaudio_hid_rx_callback(), uaudio_mixer_init_sub(), uaudio_mixer_set(), uaudio_mixer_setrecsrc(), uaudio_mixer_uninit_sub(), ymmix_init(), ymmix_set(), and ymmix_setrecsrc().

notify

METHOD int notify

Initial value:

{
        kobj_t obj

Definition at line 166 of file channel_if.m.

rates

int** rates

Definition at line 220 of file channel_if.m.

Referenced by chn_getrates(), dsp_oss_audioinfo(), emufxrchan_getrates(), and uaudio20_check_rate().

reset

METHOD int reset

Initial value:

{
        kobj_t obj

Definition at line 115 of file channel_if.m.

resetdone

METHOD int resetdone

Initial value:

{
        kobj_t obj

Definition at line 120 of file channel_if.m.

rpeak

int* rpeak

Definition at line 196 of file channel_if.m.

Referenced by dsp_ioctl().

setblocksize

METHOD u_int32_t setblocksize

Initial value:

{
        kobj_t obj

Definition at line 137 of file channel_if.m.

setformat

METHOD int setformat

Initial value:

{
        kobj_t obj

Definition at line 125 of file channel_if.m.

setfragments

METHOD int setfragments

Initial value:

{
        kobj_t obj

Definition at line 143 of file channel_if.m.

setmatrix

METHOD int setmatrix

Initial value:

{
        kobj_t obj

Definition at line 229 of file channel_if.m.

setspeed

METHOD u_int32_t setspeed

Initial value:

{
        kobj_t obj

Definition at line 131 of file channel_if.m.

speed

u_int32_t speed

Definition at line 134 of file channel_if.m.

trigger

METHOD int trigger

Initial value:

{
        kobj_t obj

Definition at line 150 of file channel_if.m.