+/* return the index of the src widget from the connection list of the nid.
+ * return -1 if not found
+ */
+static int alc662_input_pin_idx(struct hda_codec *codec, hda_nid_t nid,
+ hda_nid_t src)
+{
+ hda_nid_t conn_list[HDA_MAX_CONNECTIONS];
+ int i, conns;
+
+ conns = snd_hda_get_connections(codec, nid, conn_list,
+ ARRAY_SIZE(conn_list));
+ if (conns < 0)
+ return -1;
+ for (i = 0; i < conns; i++)
+ if (conn_list[i] == src)
+ return i;
+ return -1;
+}
+
+static int alc662_is_input_pin(struct hda_codec *codec, hda_nid_t nid)
+{
+ unsigned int pincap = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
+ return (pincap & AC_PINCAP_IN) != 0;
+}
+