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authorTakashi Iwai <tiwai@suse.de>2012-03-12 16:59:58 +0100
committerTakashi Iwai <tiwai@suse.de>2012-03-13 07:46:50 +0100
commitd2f344b5e0a933b5b1d12f863406ee1d63e5bf8e (patch)
tree3e7354efd8293fa6b1d6e24ddcd3c2356dafb2ba /sound/pci/hda/hda_local.h
parent527c73bada6f02a35983ddb34db3a0fd4360c88c (diff)
ALSA: hda - Add "Mute-LED Mode" enum control
Create snd_hda_add_vmaster_hook() and snd_hda_sync_vmaster_hook() helper functions to handle the mute-LED in vmaster hook more commonly. In the former function, a new enum control "Mute-LED Mode" is added. This provides user to choose whether the mute-LED should be turned on/off explicitly or to follow the master-mute status. Reviewed-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_local.h')
-rw-r--r--sound/pci/hda/hda_local.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index c3ee4ede4482..3f82ab6a0587 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -147,6 +147,27 @@ int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
__snd_hda_add_vmaster(codec, name, tlv, slaves, suffix, true, NULL)
int snd_hda_codec_reset(struct hda_codec *codec);
+enum {
+ HDA_VMUTE_OFF,
+ HDA_VMUTE_ON,
+ HDA_VMUTE_FOLLOW_MASTER,
+};
+
+struct hda_vmaster_mute_hook {
+ /* below two fields must be filled by the caller of
+ * snd_hda_add_vmaster_hook() beforehand
+ */
+ struct snd_kcontrol *sw_kctl;
+ void (*hook)(void *, int);
+ /* below are initialized automatically */
+ unsigned int mute_mode; /* HDA_VMUTE_XXX */
+ struct hda_codec *codec;
+};
+
+int snd_hda_add_vmaster_hook(struct hda_codec *codec,
+ struct hda_vmaster_mute_hook *hook);
+void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook);
+
/* amp value bits */
#define HDA_AMP_MUTE 0x80
#define HDA_AMP_UNMUTE 0x00