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authorTakashi Iwai <tiwai@suse.de>2009-07-27 12:54:26 +0200
committerTakashi Iwai <tiwai@suse.de>2009-07-27 12:54:26 +0200
commita22d543a95e82e5ad0ee1a44aad54fd6b6bf52a8 (patch)
tree34ab56e73bd25338588a83e8e1b28e4ce94810b1 /sound/pci/hda/hda_local.h
parenta3daf68931679dbd96342099e4d61a99ba98315c (diff)
ALSA: hda - Introduce get_wcaps_type() macro
Add a helper macro to retrieve the widget type from wiget cap bits. 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.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index 75aa3785212f..fa57cb93b443 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -407,6 +407,9 @@ static inline u32 get_wcaps(struct hda_codec *codec, hda_nid_t nid)
return codec->wcaps[nid - codec->start_nid];
}
+/* get the widget type from widget capability bits */
+#define get_wcaps_type(wcaps) (((wcaps) & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT)
+
u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction);
int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
unsigned int caps);