5 files changed, 39 insertions, 0 deletions

diff --git a/firmware/drivers/audio/sdl.c b/firmware/drivers/audio/sdl.c
index fb49a291d1..89f40baedf 100644
--- a/firmware/drivers/audio/sdl.c
+++ b/firmware/drivers/audio/sdl.c
@@ -118,6 +118,10 @@ void audiohw_set_lineout_volume(int vol_l, int vol_r)
 void audiohw_set_filter_roll_off(int value)
     { (void)value; }
 #endif
+#if defined(AUDIOHW_HAVE_POWER_MODE)
+void audiohw_set_power_mode(int value)
+    { (void)value; }
+#endif
 
 void audiohw_close(void) {}
 
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
diff --git a/firmware/sound.c b/firmware/sound.c
index 71bdc25003..6fe6115406 100644
--- a/firmware/sound.c
+++ b/firmware/sound.c
@@ -145,6 +145,9 @@ int sound_current(int setting)
 #if defined(AUDIOHW_HAVE_FILTER_ROLL_OFF)
         SOUND_CUR_SET(FILTER_ROLL_OFF,    global_settings.roll_off)
 #endif
+#if defined(AUDIOHW_HAVE_POWER_MODE)
+        SOUND_CUR_SET(POWER_MODE,         global_settings.power_mode)
+#endif
 
 #if 0 /*WRONG -- these need to index the hw_eq_bands[AUDIOHW_EQ_BAND_NUM] struct*/
 /* Hardware EQ tone controls */
@@ -425,6 +428,16 @@ void sound_set_filter_roll_off(int value)
 }
 #endif
 
+#if defined(AUDIOHW_HAVE_POWER_MODE)
+void sound_set_power_mode(int value)
+{
+    if (!audio_is_initialized)
+        return;
+
+    audiohw_set_power_mode(value);
+}
+#endif
+
 #if defined(AUDIOHW_HAVE_EQ)
 int sound_enum_hw_eq_band_setting(unsigned int band,
                                   unsigned int band_setting)