adds music and audio toggles (#337)

* Updated personal layouts

* tweaked personal

* Nightly - Audio Cleanup

Refactored the LUTs. Abstracted some of the registers out of audio to
use more functional names. Split audio into audio and audio_pwm. WIP

* nightly - collapsed code

* Added check for note playing to LEDs

* Usability tweaks

* TWEAE

* nightly

added extra kcs to keymap common

* turned on Plank audio

* Added backlight breathing to atomic

* reverted accidental merge

* Added music and audio toggles to Quantum.c

* Redid the audio callbacks

* music/audio_on_user

quantum/quantum.c

@@ -1,4 +1,5 @@
 #include "quantum.h"
+#include "timer.h"
 
 __attribute__ ((weak))
 void matrix_init_kb(void) {}
@@ -17,11 +18,11 @@ void leader_start(void) {}
 __attribute__ ((weak))
 void leader_end(void) {}
 
+uint8_t starting_note = 0x0C;
+int offset = 7;
+  
 #ifdef AUDIO_ENABLE
-  uint8_t starting_note = 0x0C;
-  int offset = 7;
   bool music_activated = false;
-  float music_scale[][2] = SONG(MUSIC_SCALE_SOUND);
 #endif
 
 #ifdef MIDI_ENABLE
@@ -105,7 +106,7 @@ bool process_record_quantum(keyrecord_t *record) {
   #ifdef MIDI_ENABLE
     if (keycode == MI_ON && record->event.pressed) {
       midi_activated = true;
-      PLAY_NOTE_ARRAY(music_scale, false, 0);
+      play_music_scale();
       return false;
     }
 
@@ -181,7 +182,6 @@ bool process_record_quantum(keyrecord_t *record) {
   #ifdef AUDIO_ENABLE
     if (keycode == AU_ON && record->event.pressed) {
       audio_on();
-      audio_on_callback();
       return false;
     }
 
@@ -190,31 +190,53 @@ bool process_record_quantum(keyrecord_t *record) {
       return false;
     }
 
+    if (keycode == AU_TOG && record->event.pressed) {
+        if (is_audio_on())
+        {
+            audio_off();
+        }
+        else
+        {
+            audio_on();
+        }
+      return false;
+    }
+
     if (keycode == MU_ON && record->event.pressed) {
-      music_activated = true;
-      PLAY_NOTE_ARRAY(music_scale, false, 0);
+      music_on();
       return false;
     }
 
     if (keycode == MU_OFF && record->event.pressed) {
-      music_activated = false;
-      stop_all_notes();
+      music_off();
       return false;
     }
 
+    if (keycode == MU_TOG && record->event.pressed) {
+        if (music_activated)
+        {
+          music_off();
+        }
+        else
+        {
+          music_on();
+        }
+        return false;
+    }
+
     if (keycode == MUV_IN && record->event.pressed) {
       voice_iterate();
-      PLAY_NOTE_ARRAY(music_scale, false, 0);
+      play_music_scale();
       return false;
     }
 
     if (keycode == MUV_DE && record->event.pressed) {
       voice_deiterate();
-      PLAY_NOTE_ARRAY(music_scale, false, 0);
+      play_music_scale();
       return false;
     }
 
-    if (music_activated) {   
+    if (music_activated) {
 
       if (keycode == KC_LCTL && record->event.pressed) { // Start recording
         stop_all_notes();
@@ -258,7 +280,7 @@ bool process_record_quantum(keyrecord_t *record) {
         }
       } else {
         stop_note(freq);
-      }  
+      }
 
       if (keycode < 0xFF) // ignores all normal keycodes, but lets RAISE, LOWER, etc through
         return false;
@@ -347,4 +369,29 @@ void matrix_scan_quantum() {
   #endif
 
   matrix_scan_kb();
-}
+}
+
+bool is_music_on(void) {
+    return (music_activated != 0);
+}
+
+void music_toggle(void) {
+    if (!music_activated) {
+        music_on();
+    } else {
+        music_off();
+    }
+}
+
+void music_on(void) {
+    music_activated = 1;
+    music_on_user();
+}
+
+void music_off(void) {
+    music_activated = 0;
+    stop_all_notes();
+}
+
+__attribute__ ((weak))
+void music_on_user() {}