3 files changed, 22 insertions, 0 deletions

diff --git a/firmware/export/audiohw.h b/firmware/export/audiohw.h
index 8a46cbea78..d862c977db 100644
--- a/firmware/export/audiohw.h
+++ b/firmware/export/audiohw.h
@@ -41,6 +41,7 @@
 #define LIN_GAIN_CAP          (1 << 11)
 #define MIC_GAIN_CAP          (1 << 12)
 #define FILTER_ROLL_OFF_CAP   (1 << 13)
+#define POWER_MODE_CAP        (1 << 14)
 
 /* Used by every driver to export its min/max/default values for its audio
    settings. */
@@ -391,6 +392,10 @@ enum AUDIOHW_EQ_SETTINGS
 #define AUDIOHW_HAVE_FILTER_ROLL_OFF
 #endif
 
+#if (AUDIOHW_CAPS & POWER_MODE_CAP)
+#define AUDIOHW_HAVE_POWER_MODE
+#endif
+
 #endif /* AUDIOHW_CAPS */
 
 #ifdef HAVE_SW_TONE_CONTROLS
@@ -586,6 +591,16 @@ void audiohw_set_depth_3d(int val);
 void audiohw_set_filter_roll_off(int val);
 #endif
 
+#ifdef AUDIOHW_HAVE_POWER_MODE
+/**
+ * Set DAC's power saving mode.
+ * @param enable 0 - highest performance, 1 - battery saving
+ * NOTE: AUDIOHW_CAPS need to contain
+ *          POWER_MODE_CAP
+ */
+void audiohw_set_power_mode(int mode);
+#endif
+
 void audiohw_set_frequency(int fsel);
 
 #ifdef HAVE_RECORDING
diff --git a/firmware/export/audiohw_settings.h b/firmware/export/audiohw_settings.h
index 1d3e0dc12f..8010963ea4 100644
--- a/firmware/export/audiohw_settings.h
+++ b/firmware/export/audiohw_settings.h
@@ -103,6 +103,9 @@ AUDIOHW_SETTINGS(
 #if defined(AUDIOHW_HAVE_FILTER_ROLL_OFF)
     AUDIOHW_SETTING_ENT(FILTER_ROLL_OFF,    sound_set_filter_roll_off)
 #endif
+#if defined(AUDIOHW_HAVE_POWER_MODE)
+    AUDIOHW_SETTING_ENT(POWER_MODE,         sound_set_power_mode)
+#endif
 /* Hardware EQ tone controls */
 #if defined(AUDIOHW_HAVE_EQ)
     AUDIOHW_SETTING_ENT(EQ_BAND1_GAIN,      sound_set_hw_eq_band1_gain)
diff --git a/firmware/export/sound.h b/firmware/export/sound.h
index 2e04cac854..8e79dd0aed 100644
--- a/firmware/export/sound.h
+++ b/firmware/export/sound.h
@@ -57,6 +57,10 @@ void sound_set_depth_3d(int value);
 void sound_set_filter_roll_off(int value);
 #endif
 
+#if defined(AUDIOHW_HAVE_POWER_MODE)
+void sound_set_power_mode(int value);
+#endif
+
 #ifdef AUDIOHW_HAVE_EQ
 /*
  * band = SOUND_EQ_BANDb