Add audio feedback to input mode keys to drive konstantin up a wall

quantum/process_keycode/process_unicode_common.c

@@ -21,6 +21,23 @@
 
 unicode_config_t unicode_config;
 static uint8_t saved_mods;
+#ifdef AUDIO_ENABLE
+  #ifdef UNICODE_LINUX_SONG
+    float linux_song[][2] = UNICODE_LINUX_SONG;
+  #endif
+  #ifdef UNICODE_WINDOWS_SONG
+    float windows_song[][2] = UNICODE_WINDOWS_SONG;
+  #endif
+  #ifdef UNICODE_WIN_COMPOSE_SONG
+    float win_compose_song[][2] = UNICODE_WIN_COMPOSE_SONG;
+  #endif
+  #ifdef UNICODE_OSX_SONG
+    float osx_song[][2] = UNICODE_OSX_SONG;
+  #endif
+  #ifdef UNICODE_OSX_RALT_SONG
+    float osx_ralt_song[][2] = UNICODE_OSX_RALT_SONG;
+  #endif
+#endif
 
 
 void set_unicode_input_mode(uint8_t os_target) {
@@ -138,18 +155,33 @@ bool process_record_unicode_common(uint16_t keycode, keyrecord_t *record) {
     switch (keycode) {
       case UNI_OSX:
         set_unicode_input_mode(UC_OSX);
+        #if defined(AUDIO_ENABLE) && defined(UNICODE_OSX_SONG)
+          PLAY_SONG(UNICODE_OSX_SONG);
+        #endif
         break;
       case UNI_LINUX:
         set_unicode_input_mode(UC_LNX);
+        #if defined(AUDIO_ENABLE) && defined(UNICODE_LINUX_SONG)
+          PLAY_SONG(UNICODE_LINUX_SONG);
+        #endif
         break;
       case UNI_WIN:
         set_unicode_input_mode(UC_WIN);
+        #if defined(AUDIO_ENABLE) && defined(UNICODE_WINDOWS_SONG)
+          PLAY_SONG(UNICODE_WINDOWS_SONG);
+        #endif
         break;
       case UNI_WINC:
         set_unicode_input_mode(UC_WINC);
+        #if defined(AUDIO_ENABLE) && defined(UNICODE_WIN_COMPOSE_SONG)
+          PLAY_SONG(UNICODE_WIN_COMPOSE_SONG);
+        #endif
         break;
       case UNI_OSX_RALT:
         set_unicode_input_mode(UC_OSX_RALT);
+        #if defined(AUDIO_ENABLE) && defined(UNICODE_OSX_RALT_SONG)
+          PLAY_SONG(UNICODE_OSX_RALT_SONG);
+        #endif
         break;
     }
   }