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Defines
#define	MIXER_CMD_DIRECT 0 /* send command within driver */
#define	MIXER_CMD_CDEV 1 /* send command from cdev/ioctl */
#define	MIXER_TYPE_PRIMARY 0 /* mixer_init() */
#define	MIXER_TYPE_SECONDARY 1 /* mixer_create() */
#define	MIXER_SIZE
#define	MIXER_DECLARE(name) static DEFINE_CLASS(name, name ## _methods, MIXER_SIZE)
Functions
struct snd_mixer *	mixer_create (device_t dev, kobj_class_t cls, void devinfo, const char desc)
int	mixer_delete (struct snd_mixer *m)
int	mixer_init (device_t dev, kobj_class_t cls, void *devinfo)
int	mixer_uninit (device_t dev)
int	mixer_reinit (device_t dev)
int	mixer_ioctl_cmd (struct cdev i_dev, u_long cmd, caddr_t arg, int mode, struct thread td, int from)
int	mixer_oss_mixerinfo (struct cdev i_dev, oss_mixerinfo mi)
	Handler for SNDCTL_MIXERINFO.
int	mixer_hwvol_init (device_t dev)
void	mixer_hwvol_mute (device_t dev)
void	mixer_hwvol_step (device_t dev, int left_step, int right_step)
int	mixer_busy (struct snd_mixer *m)
int	mix_set (struct snd_mixer *m, u_int dev, u_int left, u_int right)
int	mix_get (struct snd_mixer *m, u_int dev)
int	mix_setrecsrc (struct snd_mixer *m, u_int32_t src)
u_int32_t	mix_getrecsrc (struct snd_mixer *m)
int	mix_get_type (struct snd_mixer *m)
void	mix_setdevs (struct snd_mixer *m, u_int32_t v)
void	mix_setrecdevs (struct snd_mixer *m, u_int32_t v)
	Record mask of available recording devices.
u_int32_t	mix_getdevs (struct snd_mixer *m)
u_int32_t	mix_getrecdevs (struct snd_mixer *m)
void	mix_setparentchild (struct snd_mixer *m, u_int32_t parent, u_int32_t childs)
void	mix_setrealdev (struct snd_mixer *m, u_int32_t dev, u_int32_t realdev)
u_int32_t	mix_getparent (struct snd_mixer *m, u_int32_t dev)
u_int32_t	mix_getchild (struct snd_mixer *m, u_int32_t dev)
void *	mix_getdevinfo (struct snd_mixer *m)
struct mtx *	mixer_get_lock (struct snd_mixer *m)
Variables
int	mixer_count

Define Documentation

#define MIXER_CMD_CDEV 1 /* send command from cdev/ioctl */

Definition at line 65 of file mixer.h.

Referenced by mixer_ioctl(), and mixer_ioctl_cmd().

#define MIXER_CMD_DIRECT 0 /* send command within driver */

Definition at line 64 of file mixer.h.

Referenced by dsp_ioctl().

#define MIXER_DECLARE ( name ) static DEFINE_CLASS(name, name ## _methods, MIXER_SIZE)

Definition at line 77 of file mixer.h.

#define MIXER_SIZE

Value:

(512 + sizeof(struct kobj) +            \
                            sizeof(oss_mixer_enuminfo))

Definition at line 74 of file mixer.h.

#define MIXER_TYPE_PRIMARY 0 /* mixer_init() */

Definition at line 67 of file mixer.h.

Referenced by mixer_init(), mixer_obj_create(), and mixer_uninit().

#define MIXER_TYPE_SECONDARY 1 /* mixer_create() */

Definition at line 68 of file mixer.h.

Referenced by mixer_create(), mixer_delete(), and mixer_obj_create().

Function Documentation

int mix_get	(	struct snd_mixer *	m,
		u_int	dev
	)

Definition at line 967 of file mixer.c.

References snd_mixer::lock, mixer_get(), snd_mtxlock, and snd_mtxunlock.

Referenced by chn_syncstate(), and sysctl_es137x_single_pcm_mixer().

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int mix_get_type ( struct snd_mixer * m )

Definition at line 1009 of file mixer.c.

References snd_mixer::type.

u_int32_t mix_getchild	(	struct snd_mixer *	m,
		u_int32_t	dev
	)

Definition at line 586 of file mixer.c.

References snd_mixer::child, and dev.

void* mix_getdevinfo ( struct snd_mixer * m )

Definition at line 606 of file mixer.c.

References snd_mixer::devinfo.

Referenced by ac97mix_init(), ac97mix_reinit(), ac97mix_set(), ac97mix_setrecsrc(), ac97mix_uninit(), ad1816mix_set(), ad1816mix_setrecsrc(), alsmix_set(), alsmix_setrecsrc(), burgundy_init(), burgundy_set(), cmimix_init(), cmimix_set(), cmimix_setrecsrc(), cs4231_mixer_set(), cs4231_mixer_setrecsrc(), emu_dspmixer_init(), emu_dspmixer_set(), emu_dspmixer_setrecsrc(), emu_dspmixer_uninit(), 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(), hdaa_audio_ctl_ossmixer_init(), hdaa_audio_ctl_ossmixer_set(), hdaa_audio_ctl_ossmixer_setrecsrc(), hdspemixer_init(), hdspemixer_set(), mssmix_init(), mssmix_set(), mssmix_setrecsrc(), sb16mix_init(), sb16mix_set(), sb16mix_setrecsrc(), sbmix_init(), sbmix_set(), sbpromix_init(), sbpromix_set(), sbpromix_setrecsrc(), screamer_init(), screamer_set(), snapper_init(), snapper_set(), sv_mix_set(), sv_mix_setrecsrc(), tumbler_init(), tumbler_set(), ua_mixer_init(), ua_mixer_set(), ua_mixer_setrecsrc(), ua_mixer_uninit(), ymmix_init(), ymmix_set(), and ymmix_setrecsrc().

u_int32_t mix_getdevs ( struct snd_mixer * m )

Definition at line 594 of file mixer.c.

References snd_mixer::devs.

Referenced by dsp_ioctl(), emu_dspmixer_init(), mixer_ioctl_channel(), mixer_ioctl_cmd(), sysctl_es137x_single_pcm_mixer(), and ymmix_init().

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u_int32_t mix_getparent	(	struct snd_mixer *	m,
		u_int32_t	dev
	)

Definition at line 578 of file mixer.c.

References dev, and snd_mixer::parent.

Referenced by chn_syncstate().

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u_int32_t mix_getrecdevs ( struct snd_mixer * m )

Definition at line 600 of file mixer.c.

References snd_mixer::recdevs.

Referenced by emu_dspmixer_init(), es1370_mixsetrecsrc(), hdaa_audio_ctl_ossmixer_setrecsrc(), mixer_ioctl_cmd(), and sysctl_es137x_single_pcm_mixer().

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u_int32_t mix_getrecsrc ( struct snd_mixer * m )

Definition at line 995 of file mixer.c.

References snd_mixer::lock, mixer_getrecsrc(), snd_mtxlock, and snd_mtxunlock.

Referenced by sysctl_es137x_single_pcm_mixer().

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int mix_set	(	struct snd_mixer *	m,
		u_int	dev,
		u_int	left,
		u_int	right
	)

Definition at line 953 of file mixer.c.

References snd_mixer::lock, mixer_set(), snd_mtxlock, and snd_mtxunlock.

Referenced by emu_dspmixer_set(), hdaa_audio_ctl_set_defaults(), and sysctl_es137x_single_pcm_mixer().

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void mix_setdevs	(	struct snd_mixer *	m,
		u_int32_t	v
	)

Definition at line 456 of file mixer.c.

References snd_mixer::child, snd_mixer::dev, snd_mixer::devs, snddev_info::flags, snd_mixer::parent, SD_F_EQ, and SD_F_SOFTPCMVOL.

Referenced by ac97mix_init(), ad1816mix_init(), alsmix_init(), burgundy_init(), cmimix_init(), cs4231_mixer_init(), emu_dspmixer_init(), emu_efxmixer_init(), envy24htmixer_init(), envy24mixer_init(), es1370_mixinit(), essmix_init(), hdaa_audio_ctl_ossmixer_init(), hdspemixer_init(), mssmix_init(), sb16mix_init(), sbmix_init(), sbpromix_init(), screamer_init(), snapper_init(), sv_mix_init(), sysctl_es137x_single_pcm_mixer(), tumbler_init(), uaudio_mixer_init_sub(), and ymmix_init().

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void mix_setparentchild	(	struct snd_mixer *	m,
		u_int32_t	parent,
		u_int32_t	childs
	)

Definition at line 546 of file mixer.c.

References snd_mixer::child, mask, and snd_mixer::parent.

Referenced by ac97mix_init(), hdaa_audio_ctl_ossmixer_init(), and uaudio_mixer_init_sub().

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void mix_setrealdev	(	struct snd_mixer *	m,
		u_int32_t	dev,
		u_int32_t	realdev
	)

Definition at line 569 of file mixer.c.

References dev, and snd_mixer::realdev.

Referenced by ac97mix_init(), hdaa_audio_ctl_ossmixer_init(), and uaudio_mixer_init_sub().

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void mix_setrecdevs	(	struct snd_mixer *	m,
		u_int32_t	v
	)

Record mask of available recording devices.

Calling functions are responsible for defining the mask of available recording devices. This function records that value in a structure used by the rest of the mixer code.

This function also populates a structure used by the SNDCTL_DSP_*RECSRC* family of ioctls that are part of OSSV4. All recording device labels are concatenated in ascending order corresponding to their routing numbers. (Ex: a system might have 0 => 'vol', 1 => 'cd', 2 => 'line', etc.) For now, these labels are just the standard recording device names (cd, line1, etc.), but will eventually be fully dynamic and user controlled.

Parameters:

m	mixer device context container thing
v	mask of recording devices

Definition at line 496 of file mixer.c.

References snd_mixer::dev, snd_mixer::enuminfo, snd_mixer::recdevs, and snd_mixernames.

Referenced by ac97mix_init(), ad1816mix_init(), alsmix_init(), cmimix_init(), cs4231_mixer_init(), emu_dspmixer_init(), emu_efxmixer_init(), envy24htmixer_init(), envy24mixer_init(), es1370_mixinit(), essmix_init(), hdaa_audio_ctl_ossmixer_init(), mssmix_init(), sb16mix_init(), sbmix_init(), sbpromix_init(), sv_mix_init(), sysctl_es137x_single_pcm_mixer(), and uaudio_mixer_init_sub().

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int mix_setrecsrc	(	struct snd_mixer *	m,
		u_int32_t	src
	)

Definition at line 981 of file mixer.c.

References snd_mixer::lock, mixer_setrecsrc(), snd_mtxlock, and snd_mtxunlock.

Referenced by emu_dspmixer_setrecsrc(), hdaa_autorecsrc_handler(), and sysctl_es137x_single_pcm_mixer().

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int mixer_busy ( struct snd_mixer * m )

Definition at line 945 of file mixer.c.

References snd_mixer::busy.

Referenced by sysctl_es137x_single_pcm_mixer().

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struct snd_mixer* mixer_create	(	device_t	dev,
		kobj_class_t	cls,
		void *	devinfo,
		const char *	desc
	)		`[read]`

Definition at line 673 of file mixer.c.

References mixer_count, mixer_obj_create(), and MIXER_TYPE_SECONDARY.

Referenced by emu_dspmixer_init().

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int mixer_delete ( struct snd_mixer * m )

Definition at line 654 of file mixer.c.

References snd_mixer::lock, mixer_count, MIXER_TYPE_SECONDARY, snd_mtxfree(), and snd_mixer::type.

Referenced by emu_dspmixer_uninit().

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struct mtx* mixer_get_lock ( struct snd_mixer * m ) [read]

Definition at line 1488 of file mixer.c.

References snd_mixer::lock.

Referenced by snapper_set(), tumbler_set(), ua_mixer_set(), ua_mixer_setrecsrc(), and uaudio_mixer_init_sub().

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int mixer_hwvol_init ( device_t dev )

Definition at line 875 of file mixer.c.

References snd_mixer::hwvol_mixer, snd_mixer::hwvol_step, mixer_get_devt(), and sysctl_hw_snd_hwvol_mixer().

Referenced by agg_attach(), and m3_pci_attach().

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void mixer_hwvol_mute ( device_t dev )

Definition at line 896 of file mixer.c.

References snd_mixer::hwvol_mixer, snd_mixer::hwvol_mute_level, snd_mixer::hwvol_muted, snd_mixer::lock, mixer_get(), mixer_get_devt(), mixer_set(), snd_mtxlock, and snd_mtxunlock.

Referenced by agg_intr(), and m3_intr().

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void mixer_hwvol_step	(	device_t	dev,
		int	left_step,
		int	right_step
	)

Definition at line 916 of file mixer.c.

References snd_mixer::hwvol_mixer, snd_mixer::hwvol_mute_level, snd_mixer::hwvol_muted, snd_mixer::hwvol_step, left, snd_mixer::level, snd_mixer::lock, mixer_get(), mixer_get_devt(), mixer_set(), right, snd_mtxlock, and snd_mtxunlock.

Referenced by agg_intr(), and m3_intr().

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int mixer_init	(	device_t	dev,
		kobj_class_t	cls,
		void *	devinfo
	)

Definition at line 686 of file mixer.c.

References snd_mixer::child, snd_mixer::devs, snddev_info::eqpreamp, snddev_info::flags, mixer_cdevsw, mixer_count, snddev_info::mixer_dev, mixer_obj_create(), mixer_set(), mixer_setrecsrc(), MIXER_TYPE_PRIMARY, snd_mixer::parent, PCMMINOR, snd_mixer::realdev, SD_F_EQ, SD_F_EQ_DEFAULT, SD_F_EQ_MASK, SD_F_SOFTPCMVOL, SND_DEV_CTL, snd_mixerdefaults, snd_mixernames, snd_mkunit(), and val.

Referenced by ad1816_attach(), agg_attach(), als_pci_attach(), atiixp_chip_post_init(), au_pci_attach(), cmi_attach(), cs4231_attach_common(), cs4281_pci_attach(), davbus_attach(), ds_pci_attach(), emu_pci_attach(), emu_pcm_attach(), envy24_pci_attach(), envy24ht_pci_attach(), es_pci_attach(), ess_attach(), fm801_pci_attach(), hdaa_pcm_attach(), hdspe_pcm_attach(), i2s_postattach(), ich_pci_attach(), m3_pci_attach(), mss_doattach(), nm_pci_attach(), pcmcsa_attach(), sb16_attach(), sb_attach(), sv_attach(), tr_pci_attach(), uaudio_attach_sub(), and via_attach().

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int mixer_ioctl_cmd	(	struct cdev *	i_dev,
		u_long	cmd,
		caddr_t	arg,
		int	mode,
		struct thread *	td,
		int	from
	)

Definition at line 1213 of file mixer.c.

References snd_mixer::busy, dsp_oss_audioinfo(), snd_mixer::enuminfo, snd_mixer::lock, mix_getdevs(), mix_getrecdevs(), MIXER_CMD_CDEV, mixer_get(), mixer_get_recroute(), mixer_getrecsrc(), mixer_oss_mixerinfo(), mixer_set(), mixer_set_recroute(), mixer_setrecsrc(), snd_mtxlock, snd_mtxunlock, sound_oss_card_info(), and sound_oss_sysinfo().

Referenced by dsp_ioctl(), and mixer_ioctl().

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int mixer_oss_mixerinfo	(	struct cdev *	i_dev,
		oss_mixerinfo *	mi
	)

Handler for SNDCTL_MIXERINFO.

This function searches for a mixer based on the numeric ID stored in oss_miserinfo::dev. If set to -1, then information about the current mixer handling the request is provided. Note, however, that this ioctl may be made with any sound device (audio, mixer, midi).

Note:: Caller must not hold any PCM device, channel, or mixer locks.

See http://manuals.opensound.com/developer/SNDCTL_MIXERINFO.html for more information.

Parameters:

i_dev	character device on which the ioctl arrived
arg	user argument (oss_mixerinfo *)

Return values:

EINVAL	oss_mixerinfo::dev specified a bad value
0	success

Todo:: Fill in

See also:: oss_mixerinfo::mixerhandle.

Note:: From 4Front: "mixerhandle is an arbitrary string that identifies the mixer better than the device number (mixerinfo.dev). Device numbers may change depending on the order the drivers are loaded. However the handle should remain the same provided that the sound card is not moved to another PCI slot."

See also:: oss_mixerinfo::magic is a reserved field.

: From 4Front: "magic is usually 0. However some devices may have dedicated setup utilities and the magic field may contain an unique driver specific value (managed by [4Front])."

The only flag for

See also:: oss_mixerinfo::caps is currently MIXER_CAP_VIRTUAL, which I'm not sure we really worry about.

Mixer extensions currently aren't supported, so leave

See also:: oss_mixerinfo::nrext blank for now.

Todo:: Fill in

See also:: oss_mixerinfo::priority (requires touching drivers?)

Note:: The priority field is for mixer applets to determine which mixer should be the default, with 0 being least preferred and 10 being most preferred. From 4Front: "OSS drivers like ICH use higher values (10) because such chips are known to be used only on motherboards. Drivers for high end pro devices use 0 because they will never be the default mixer. Other devices use values 1 to 9 depending on the estimated probability of being the default device.

XXX Described by Hannu@4Front, but not found in soundcard.h. strlcpy(mi->devnode, devtoname(d->mixer_dev), sizeof(mi->devnode)); mi->legacy_device = i;

Definition at line 1360 of file mixer.c.

References snd_mixer::dev, snd_mixer::lock, mixer_cdevsw, snddev_info::mixer_dev, snd_mixer::modify_counter, snd_mixer::name, pcm_devclass, PCM_LOCK, PCM_REGISTERED, PCM_UNLOCK, and PCM_UNLOCKASSERT.