muse working with encoder as control

keyboards/planck/keymaps/default/keymap.c

@@ -16,6 +16,7 @@
 
 #include "planck.h"
 #include "action_layer.h"
+#include "muse.h"
 
 extern keymap_config_t keymap_config;
 
@@ -267,20 +268,42 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
   return true;
 }
 
-void encoder_update(bool direction) {
-  if (direction) {
-    register_code(KC_PGUP);
-    unregister_code(KC_PGUP);
+bool muse_mode = false;
+uint8_t last_muse_note = 0;
+uint16_t muse_counter = 0;
+uint8_t muse_offset = 70;
+uint16_t muse_tempo = 50;
+
+void encoder_update(bool clockwise) {
+  if (muse_mode) {
+    if (IS_LAYER_ON(_RAISE)) {
+      if (clockwise) {
+        muse_offset++;
+      } else {
+        muse_offset--;
+      }
+    } else {
+      if (clockwise) {
+        muse_tempo+=1;
+      } else {
+        muse_tempo-=1;
+      }
+    }
   } else {
-    register_code(KC_PGDN);
-    unregister_code(KC_PGDN);
+    if (clockwise) {
+      register_code(KC_PGUP);
+      unregister_code(KC_PGUP);
+    } else {
+      register_code(KC_PGDN);
+      unregister_code(KC_PGDN);
+    }
   }
 }
 
-void dip_update(uint8_t index, bool value) {
+void dip_update(uint8_t index, bool active) {
   switch (index) {
     case 0:
-      if (value) {
+      if (active) {
         #ifdef AUDIO_ENABLE
           PLAY_SONG(plover_song);
         #endif
@@ -292,5 +315,35 @@ void dip_update(uint8_t index, bool value) {
         layer_off(_ADJUST);
       }
       break;
+    case 1:
+      if (active) {
+        muse_mode = true;
+      } else {
+        muse_mode = false;
+        stop_all_notes();
+      }
+   }
+}
+
+void matrix_init_user(void) {
+  palSetPadMode(GPIOB, 5, PAL_MODE_OUTPUT_PUSHPULL);
+}
+
+void matrix_scan_user(void) {
+  if (muse_mode) {
+    if (muse_counter == 0) {
+      uint8_t muse_note = muse_offset + SCALE[muse_clock_pulse()];
+      if (muse_note != last_muse_note) {
+        stop_note(compute_freq_for_midi_note(last_muse_note));
+        play_note(compute_freq_for_midi_note(muse_note), 0xF);
+        last_muse_note = muse_note;
+      }
+    }
+    if (muse_counter > (muse_tempo / 2)) {
+      palSetPad(GPIOB, 5);
+    } else {
+      palClearPad(GPIOB, 5);
+    }
+    muse_counter = (muse_counter + 1) % muse_tempo;
   }
 }