Add rotary encoder support

Author: BlankSourceCode

keyboards/lily58/keymaps/blanksourcecode/config.h

@@ -40,6 +40,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define PERMISSIVE_HOLD
 #define IGNORE_MOD_TAP_INTERRUPT
 
+#define NUMBER_OF_ENCODERS 1
+#define ENCODERS_PAD_A { F5 }
+#define ENCODERS_PAD_B { F4 }
+
 #define LAYOUT_kc( \
   L00, L01, L02, L03, L04, L05,           R00, R01, R02, R03, R04, R05, \
   L10, L11, L12, L13, L14, L15,           R10, R11, R12, R13, R14, R15, \

keyboards/lily58/keymaps/blanksourcecode/keymap.c

@@ -448,6 +448,21 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
   return true;
 }
 
+// Rotary Encoder
+void encoder_update_user(uint8_t index, bool clockwise) {
+  switch (biton32(layer_state)) {
+    default: {
+      // Page up and Page down on all layers
+      if (clockwise) {
+        tap_code(KC_PGDN);
+      } else {
+        tap_code(KC_PGUP);
+      }
+      break;
+    }
+  }
+}
+
 // Tap Dance
 int cur_dance (qk_tap_dance_state_t *state) {
   if (state->count == 1) {

keyboards/lily58/keymaps/blanksourcecode/rules.mk

@@ -15,6 +15,7 @@ UNICODE_ENABLE = no         # Unicode
 BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
 RGBLIGHT_ENABLE = yes       # Enable WS2812 RGB underlight.
 SWAP_HANDS_ENABLE = no      # Enable one-hand typing
+ENCODER_ENABLE = yes        # Enable rotary encoder
 
 # Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
 SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend