+static bool check_amp_caps(struct hda_codec *codec, hda_nid_t nid,
+ int dir, unsigned int bits)
+{
+ if (!nid)
+ return false;
+ if (get_wcaps(codec, nid) & (1 << (dir + 1)))
+ if (query_amp_caps(codec, nid, dir) & bits)
+ return true;
+ return false;
+}
+
+#define nid_has_mute(codec, nid, dir) \
+ check_amp_caps(codec, nid, dir, AC_AMPCAP_MUTE)
+#define nid_has_volume(codec, nid, dir) \
+ check_amp_caps(codec, nid, dir, AC_AMPCAP_NUM_STEPS)
+