[ALSA] hda-intel - Add POWER_SAVE option

[deliverable/linux.git] / sound / pci / hda / hda_local.h

diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index 35ea0cf37a277bcd228f4337b820d399e98e3a08..a79d0ed5469c297215d37d741f2a569e905148c5 100644 (file)
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -86,7 +86,7 @@ int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
                             int direction, int idx, int mask, int val);
 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
                             int dir, int idx, int mask, int val);
-#ifdef CONFIG_PM
+#ifdef SND_HDA_NEEDS_RESUME
 void snd_hda_codec_resume_amp(struct hda_codec *codec);
 #endif
 
@@ -366,4 +366,27 @@ int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
  */
 int snd_hda_create_hwdep(struct hda_codec *codec);
 
+/*
+ * power-management
+ */
+
+#ifdef CONFIG_SND_HDA_POWER_SAVE
+void snd_hda_schedule_power_save(struct hda_codec *codec);
+
+struct hda_amp_list {
+       hda_nid_t nid;
+       unsigned char dir;
+       unsigned char idx;
+};
+
+struct hda_loopback_check {
+       struct hda_amp_list *amplist;
+       int power_on;
+};
+
+int snd_hda_check_amp_list_power(struct hda_codec *codec,
+                                struct hda_loopback_check *check,
+                                hda_nid_t nid);
+#endif /* CONFIG_SND_HDA_POWER_SAVE */
+
 #endif /* __SOUND_HDA_LOCAL_H */