2 files changed, 46 insertions, 0 deletions

diff --git a/firmware/mpeg.c b/firmware/mpeg.c
index c6e95dd588..6e2cabe172 100644
--- a/firmware/mpeg.c
+++ b/firmware/mpeg.c
@@ -1757,6 +1757,51 @@ int mpeg_val2phys(int setting, int value)
     return result;
 }
 
+int mpeg_phys2val(int setting, int value)
+{
+    int result = 0;
+    
+    switch(setting)
+    {
+        case SOUND_VOLUME:
+            result = value / 2;
+            break;
+        
+        case SOUND_BALANCE:
+            result = value / 2;
+            break;
+        
+        case SOUND_BASS:
+#ifdef HAVE_MAS3587F
+            result = value + 12;
+#else
+            result = value + 15;
+#endif
+            break;
+        
+        case SOUND_TREBLE:
+#ifdef HAVE_MAS3587F
+            result = value + 12;
+#else
+            result = value + 15;
+#endif
+            break;
+
+#ifdef HAVE_MAS3587F
+        case SOUND_LOUDNESS:
+            result = value;
+            break;
+            
+        case SOUND_SUPERBASS:
+            result = value / 10;
+            break;
+#endif
+    }
+
+    return result;
+}
+
+
 void mpeg_sound_channel_config(int configuration)
 {
 #ifdef SIMULATOR
diff --git a/firmware/mpeg.h b/firmware/mpeg.h
index a67ca922c4..4a92a2fbe9 100644
--- a/firmware/mpeg.h
+++ b/firmware/mpeg.h
@@ -37,6 +37,7 @@ int mpeg_sound_max(int setting);
 int mpeg_sound_default(int setting);
 void mpeg_sound_channel_config(int configuration);
 int mpeg_val2phys(int setting, int value);
+int mpeg_phys2val(int setting, int value);
 char *mpeg_sound_unit(int setting);
 int mpeg_sound_numdecimals(int setting);
 struct mp3entry* mpeg_current_track(void);