ALSA: hda - Create snd_hda_get_conn_index() helper function
Create snd_hda_get_conn_index() helper function for obtaining the
connection index of the widget. Replaced the similar codes used in
several codec-drivers with this common helper.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 7407095..56425a5 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -3408,30 +3408,9 @@
return 0;
}
-static int get_connection_index(struct hda_codec *codec, hda_nid_t mux,
- hda_nid_t nid)
-{
- hda_nid_t conn[HDA_MAX_NUM_INPUTS];
- int i, nums;
-
- if (!(get_wcaps(codec, mux) & AC_WCAP_CONN_LIST))
- return -1;
-
- nums = snd_hda_get_connections(codec, mux, conn, ARRAY_SIZE(conn));
- for (i = 0; i < nums; i++)
- if (conn[i] == nid)
- return i;
-
- for (i = 0; i < nums; i++) {
- unsigned int wid_caps = get_wcaps(codec, conn[i]);
- unsigned int wid_type = get_wcaps_type(wid_caps);
-
- if (wid_type != AC_WID_PIN && wid_type != AC_WID_AUD_MIX)
- if (get_connection_index(codec, conn[i], nid) >= 0)
- return i;
- }
- return -1;
-}
+/* look for NID recursively */
+#define get_connection_index(codec, mux, nid) \
+ snd_hda_get_conn_index(codec, mux, nid, 1)
/* create a volume assigned to the given pin (only if supported) */
/* return 1 if the volume control is created */