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ALSA: vmaster: Add snd_ctl_sync_vmaster() helper function

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Introduce a new helper function, snd_ctl_sync_vmaster(), which updates
the slave put callbacks forcibly as well as calling the hook.  This
will be used in the upcoming patch in HD-audio codec driver for
toggling the mute in vmaster slaves.

Along with the new function, the old snd_ctl_sync_vmaster_hook() is
replaced as a macro calling with the argument hook_only=true.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2013-06-24 15:51:54 +02:00
parent e1a4dca671
commit 1ca2f2ec9e
2 changed files with 47 additions and 21 deletions
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3
include/sound/control.h
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@ -233,7 +233,8 @@ snd_ctl_add_slave_uncached(struct snd_kcontrol *master,
int snd_ctl_add_vmaster_hook(struct snd_kcontrol *kctl,
void (*hook)(void *private_data, int),
void *private_data);
void snd_ctl_sync_vmaster_hook(struct snd_kcontrol *kctl);
void snd_ctl_sync_vmaster(struct snd_kcontrol *kctl, bool hook_only);
#define snd_ctl_sync_vmaster_hook(kctl) snd_ctl_sync_vmaster(kctl, true)
/*
* Helper functions for jack-detection controls