Add nullbits nibble (#9250)

* Add NIBBLE keyboard

* Update VID for VIA compatibility

* Add QMK PR feedback

* Update matrix_init_remote_kb()

* Update with requested changes

Clean up config, makefile rules, and keymap files

* Update with changes for unified ANSI/ISO layout

* Add NO_USB_STARTUP_CHECK note in readme

* Add license info, update with PR changes

-Refactor encoder, via_extras code
-Refactor VIA specific code to live in keymap folder
-Remove non-inclusive naming in remote keyboard.c/h
-Add documentation to remote_keyboard.c
-Add compiler check for vusb_detect for non-avr micros

* Fix print formatter in encoder handler

Co-authored-by: Nick Brassel <nick@tzarc.org>

* Small PR updates

-Remove unneded matrix code from nibble.c
-Clean up include code in nibble_encoder.h

* Update Big LED headerfile

-Declare Big LED functions in header file (derp)

* Update keyboards/nullbitsco/nibble/nibble.c

-Update with drashna's suggested CAPS LED code change

Co-authored-by: Drashna Jaelre <drashna@live.com>

* Update keyboards/nullbitsco/nibble/rules.mk

-Update with drasha's suggested makefile formatting changes

Co-authored-by: Drashna Jaelre <drashna@live.com>

* Fix caps_lock typo

Co-authored-by: Nick Brassel <nick@tzarc.org>
Co-authored-by: Drashna Jaelre <drashna@live.com>

7 files changed, 540 insertions, 0 deletions

diff --git a/keyboards/nullbitsco/nibble/keymaps/via/config.h b/keyboards/nullbitsco/nibble/keymaps/via/config.h
new file mode 100644
index 0000000000..961e2aed1a
--- /dev/null
+++ b/keyboards/nullbitsco/nibble/keymaps/via/config.h
@@ -0,0 +1,21 @@
+/* Copyright 2020 Jay Greco
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+// Custom config starts after VIA's EEPROM usage,
+// dynamic keymaps start after this.
+// Custom config Usage:
+// 1 for enabled encoder modes (1 byte)
+// 6 for 3x custom encoder settings, left, right, and press (18 bytes)
+#define VIA_EEPROM_CUSTOM_CONFIG_SIZE 19
\ No newline at end of file
diff --git a/keyboards/nullbitsco/nibble/keymaps/via/keymap.c b/keyboards/nullbitsco/nibble/keymaps/via/keymap.c
new file mode 100644
index 0000000000..1e1b0c0369
--- /dev/null
+++ b/keyboards/nullbitsco/nibble/keymaps/via/keymap.c
@@ -0,0 +1,164 @@
+/* Copyright 2020 Jay Greco
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+#include "via_extras.h"
+
+#define _BASE     0
+#define _VIA1     1
+#define _VIA2     2
+#define _VIA3     3
+
+#define KC_DISC_MUTE KC_F23
+#define KC_DISC_DEAF KC_F24
+#define NUM_CUST_KEYCODES (_NUM_CUST_KCS - SAFE_RANGE)
+#define VIA_KEYCODE_RANGE 0x5F80
+
+enum custom_keycodes {
+  PROG = SAFE_RANGE,
+  DISC_MUTE,
+  DISC_DEAF,
+  SUPER_ALT_TAB,
+  _NUM_CUST_KCS,
+};
+
+// Macro variables
+bool is_alt_tab_active = false;
+uint16_t alt_tab_timer = 0;
+bool muted = false;
+bool deafened = false;
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [_BASE] = LAYOUT_all(
+    KC_NUBS,   KC_GESC, KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC, KC_HOME,
+    KC_F13,    KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS, KC_DEL,
+    KC_F14,    KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,          KC_ENT,  KC_PGUP,
+    KC_F15,    KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT,          KC_UP,   KC_PGDN,
+    KC_F16,    KC_LCTL, KC_LGUI, KC_LALT,                   KC_SPC,                  MO(_VIA1), KC_RALT, KC_RCTL, KC_LEFT,          KC_DOWN, KC_RGHT
+  ),
+
+  [_VIA1] = LAYOUT_all(
+    _______,  RESET,   KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,  KC_F10,  KC_F11,  KC_F12, KC_HOME,  KC_INS,
+    RGB_TOG,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+    _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______,
+    _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______,
+    _______,  _______, _______, _______,                   _______,                   _______, _______, _______, KC_MPRV,          KC_MPLY, KC_MNXT
+  ),
+
+  [_VIA2] = LAYOUT_all(
+    _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+    _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+    _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______,
+    _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______,
+    _______,  _______, _______, _______,                   _______,                   _______, _______, _______, _______,          _______, _______
+  ),
+
+  [_VIA3] = LAYOUT_all(
+    _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+    _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+    _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______,
+    _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______,
+    _______,  _______, _______, _______,                   _______,                   _______, _______, _______, _______,          _______, _______
+  ),
+
+};
+
+void map_via_keycode(uint16_t * keycode) {
+  if (abs(*keycode - VIA_KEYCODE_RANGE) < NUM_CUST_KEYCODES) { //make into macro?
+    dprintf("VIA custom keycode found, mapping to QMK keycode.\n");
+    uint16_t new_keycode = (*keycode - VIA_KEYCODE_RANGE) + SAFE_RANGE;
+    dprintf("VIA KC: %u QMK KC: %u\n", *keycode, new_keycode);
+    *keycode = new_keycode;
+  }
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  map_via_keycode(&keycode);
+  // Send keystrokes to host keyboard, if connected (see readme)
+  process_record_remote_kb(keycode, record);
+  switch(keycode) {
+    case PROG:
+      if (record->event.pressed) {
+        rgblight_disable_noeeprom();
+        bootloader_jump();
+      }
+    break;
+
+    case DISC_MUTE:
+      if (record->event.pressed) {
+        tap_code(KC_DISC_MUTE);
+        if (!rgblight_is_enabled()) break;
+        
+        if (muted) {
+          rgblight_enable_noeeprom();
+        } else {
+          rgblight_timer_disable();
+          uint8_t val = rgblight_get_val();
+          rgblight_sethsv_range(255, 255, val, 0, 1);
+        }
+        muted = !muted;
+      }
+    break;
+
+    case DISC_DEAF:
+      if (record->event.pressed) {
+        tap_code(KC_DISC_DEAF);
+        if (!rgblight_is_enabled()) break;
+
+        if (deafened) {
+          rgblight_enable_noeeprom();
+        } else {
+          rgblight_timer_disable();
+          uint8_t val = rgblight_get_val();
+          rgblight_sethsv_range(255, 255, val, 0, RGBLED_NUM-1);
+        }
+        deafened = !deafened;
+      }
+    break;
+
+    case SUPER_ALT_TAB:
+      if (record->event.pressed) {
+        if (!is_alt_tab_active) {
+          is_alt_tab_active = true;
+          register_code(KC_LALT);
+        } 
+        alt_tab_timer = timer_read();
+        register_code(KC_TAB);
+      } else {
+        unregister_code(KC_TAB);
+      }
+      break;
+
+    default:
+    break;    
+  }
+return true;
+}
+
+void matrix_init_user(void) {
+  // Initialize remote keyboard, if connected (see readme)
+  matrix_init_remote_kb();
+}
+
+void matrix_scan_user(void) {
+  // Scan and parse keystrokes from remote keyboard, if connected (see readme)
+  matrix_scan_remote_kb();
+  if (is_alt_tab_active) {
+    if (timer_elapsed(alt_tab_timer) > 1000) {
+      unregister_code(KC_LALT);
+      is_alt_tab_active = false;
+    }
+  }
+}
\ No newline at end of file
diff --git a/keyboards/nullbitsco/nibble/keymaps/via/nibble_encoder.c b/keyboards/nullbitsco/nibble/keymaps/via/nibble_encoder.c
new file mode 100644
index 0000000000..bdea1869c2
--- /dev/null
+++ b/keyboards/nullbitsco/nibble/keymaps/via/nibble_encoder.c
@@ -0,0 +1,133 @@
+/* Copyright 2020 Jay Greco
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "nibble_encoder.h"
+
+uint8_t encoder_value = 0x20,
+  encoder_mode = ENC_MODE_VOLUME,
+  enabled_encoder_modes = 0x1F;
+
+uint16_t retrieve_custom_encoder_config(uint8_t encoder_idx, uint8_t behavior) {
+#ifdef DYNAMIC_KEYMAP_ENABLE
+    void* addr = (void*)(EEPROM_CUSTOM_ENCODER + (encoder_idx * 6) + (behavior * 2));
+    uint16_t keycode = eeprom_read_byte(addr) << 8;
+    keycode |= eeprom_read_byte(addr + 1);
+    return keycode;
+#else
+    return 0;
+#endif
+}
+
+void set_custom_encoder_config(uint8_t encoder_idx, uint8_t behavior, uint16_t new_code) {
+#ifdef DYNAMIC_KEYMAP_ENABLE
+    void* addr = (void*)(EEPROM_CUSTOM_ENCODER + (encoder_idx * 6) + (behavior * 2));
+    eeprom_update_byte(addr, (uint8_t)(new_code >> 8));
+    eeprom_update_byte(addr + 1, (uint8_t)(new_code & 0xFF));
+#endif
+}
+
+void pre_encoder_mode_change(void) {
+	dprintf("Changing encoder mode: %u\n", encoder_mode);
+}
+
+void post_encoder_mode_change(void) {
+	dprintf("Encoder mode: %u\n", encoder_mode);
+}
+
+//???
+void change_encoder_mode(bool clockwise) {
+  pre_encoder_mode_change();
+  if(enabled_encoder_modes == 0){
+    enabled_encoder_modes = 0x1F;
+  }
+  do {
+    if(!clockwise){
+      if (encoder_mode == 0){
+        encoder_mode = _NUM_ENCODER_MODES - 1;
+      } else{
+        encoder_mode = encoder_mode - 1;
+      }
+    } else {
+        encoder_mode = (encoder_mode + 1) % _NUM_ENCODER_MODES;
+    }
+  } while(((1 << encoder_mode) & enabled_encoder_modes) == 0);
+  post_encoder_mode_change();
+}
+
+uint16_t handle_encoder_cw(void) {
+	dprintf("Encoder mode: %u\n", encoder_mode);
+  uint16_t mapped_code = 0;
+  switch(encoder_mode){
+    default:
+    	break;
+    case ENC_MODE_VOLUME:
+      mapped_code = KC_VOLU;
+      break;
+    case ENC_MODE_MEDIA:
+      mapped_code = KC_MEDIA_NEXT_TRACK;
+      break;
+    case ENC_MODE_SCROLL:
+      mapped_code = KC_WH_D;
+      break;
+    case ENC_MODE_BACKLIGHT:
+      mapped_code = RGB_VAI;
+      break;
+#ifdef DYNAMIC_KEYMAP_ENABLE
+    case ENC_MODE_CUSTOM0:
+      mapped_code = retrieve_custom_encoder_config(0, ENC_CUSTOM_CW);
+      break;
+    case ENC_MODE_CUSTOM1:
+      mapped_code = retrieve_custom_encoder_config(1, ENC_CUSTOM_CW);
+      break;
+    case ENC_MODE_CUSTOM2:
+      mapped_code = retrieve_custom_encoder_config(2, ENC_CUSTOM_CW);
+      break;
+#endif
+  }
+  return mapped_code;
+}
+
+uint16_t handle_encoder_ccw(void) {
+	dprintf("Encoder mode: %u\n", encoder_mode);
+  uint16_t mapped_code = 0;
+  switch(encoder_mode){
+    default:
+    	break;
+    case ENC_MODE_VOLUME:
+      mapped_code = KC_VOLD;
+      break;
+    case ENC_MODE_MEDIA:
+      mapped_code = KC_MEDIA_PREV_TRACK;
+      break;
+    case ENC_MODE_SCROLL:
+      mapped_code = KC_WH_U;
+      break;
+    case ENC_MODE_BACKLIGHT:
+      mapped_code = RGB_VAD;
+      break;
+#ifdef DYNAMIC_KEYMAP_ENABLE
+    case ENC_MODE_CUSTOM0:
+      mapped_code = retrieve_custom_encoder_config(0, ENC_CUSTOM_CCW);
+      break;
+    case ENC_MODE_CUSTOM1:
+      mapped_code = retrieve_custom_encoder_config(1, ENC_CUSTOM_CCW);
+      break;
+    case ENC_MODE_CUSTOM2:
+      mapped_code = retrieve_custom_encoder_config(2, ENC_CUSTOM_CCW);
+      break;
+#endif
+  }
+  return mapped_code;
+}
diff --git a/keyboards/nullbitsco/nibble/keymaps/via/nibble_encoder.h b/keyboards/nullbitsco/nibble/keymaps/via/nibble_encoder.h
new file mode 100644
index 0000000000..fc1e61434b
--- /dev/null
+++ b/keyboards/nullbitsco/nibble/keymaps/via/nibble_encoder.h
@@ -0,0 +1,50 @@
+/* Copyright 2020 Jay Greco
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include QMK_KEYBOARD_H
+#include "eeprom.h"
+
+#define EEPROM_ENABLED_ENCODER_MODES (VIA_EEPROM_CUSTOM_CONFIG_ADDR)
+#define EEPROM_CUSTOM_ENCODER (VIA_EEPROM_CUSTOM_CONFIG_ADDR+1)
+
+enum encoder_modes {
+  ENC_MODE_VOLUME,
+  ENC_MODE_MEDIA,
+  ENC_MODE_SCROLL,
+  ENC_MODE_BRIGHTNESS,
+  ENC_MODE_BACKLIGHT,
+  ENC_MODE_CUSTOM0,
+  ENC_MODE_CUSTOM1,
+  ENC_MODE_CUSTOM2,
+  _NUM_ENCODER_MODES,
+};
+
+enum custom_encoder_behavior {
+    ENC_CUSTOM_CW = 0,
+    ENC_CUSTOM_CCW,
+    ENC_CUSTOM_PRESS
+};
+
+uint16_t 
+  retrieve_custom_encoder_config(uint8_t encoder_idx, uint8_t behavior),
+  handle_encoder_cw(void),
+  handle_encoder_ccw(void);
+
+void set_custom_encoder_config(uint8_t encoder_idx, uint8_t behavior, uint16_t new_code),
+  pre_encoder_mode_change(void),
+  post_encoder_mode_change(void),
+  change_encoder_mode(bool clockwise);
\ No newline at end of file
diff --git a/keyboards/nullbitsco/nibble/keymaps/via/rules.mk b/keyboards/nullbitsco/nibble/keymaps/via/rules.mk
new file mode 100644
index 0000000000..ee197efc02
--- /dev/null
+++ b/keyboards/nullbitsco/nibble/keymaps/via/rules.mk
@@ -0,0 +1,4 @@
+VIA_ENABLE = yes
+
+SRC += keymaps/via/nibble_encoder.c
+SRC += keymaps/via/via_extras.c
\ No newline at end of file
diff --git a/keyboards/nullbitsco/nibble/keymaps/via/via_extras.c b/keyboards/nullbitsco/nibble/keymaps/via/via_extras.c
new file mode 100644
index 0000000000..067296b76b
--- /dev/null
+++ b/keyboards/nullbitsco/nibble/keymaps/via/via_extras.c
@@ -0,0 +1,129 @@
+/* Copyright 2020 Jay Greco
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "via_extras.h"
+
+// Encoder Behavior
+extern uint8_t encoder_value;
+extern uint8_t encoder_mode;
+extern uint8_t enabled_encoder_modes;
+
+void raw_hid_receive_kb( uint8_t *data, uint8_t length )
+{
+  uint8_t *command_id = &(data[0]);
+  uint8_t *command_data = &(data[1]);
+  dprintf("raw hid recv! command_id: %u\n",*command_id);
+  switch ( *command_id )
+  {
+    case id_get_keyboard_value:
+    {
+      switch( command_data[0])
+      {
+        case id_encoder_modes:
+        {
+          command_data[1] = enabled_encoder_modes;
+          dprintf("[read] enabled_encoder_modes: %u\n", enabled_encoder_modes);
+        }
+        break;
+
+        case id_encoder_custom:
+        {
+          uint8_t custom_encoder_idx = command_data[1];
+          uint16_t keycode = retrieve_custom_encoder_config(custom_encoder_idx, ENC_CUSTOM_CW);
+          command_data[2] =  keycode >> 8;
+          command_data[3] = keycode & 0xFF;
+          keycode = retrieve_custom_encoder_config(custom_encoder_idx, ENC_CUSTOM_CCW);
+          command_data[4] =  keycode >> 8;
+          command_data[5] = keycode & 0xFF;
+          keycode = retrieve_custom_encoder_config(custom_encoder_idx, ENC_CUSTOM_PRESS);
+          command_data[6] =  keycode >> 8;
+          command_data[7] = keycode & 0xFF;
+        }
+        break;
+
+        default:
+        {
+          *command_id = id_unhandled;
+        }
+        break;
+      }
+    }
+    break;
+    case id_set_keyboard_value:
+    {
+      switch(command_data[0]){
+        case id_encoder_modes:
+        {
+          enabled_encoder_modes = command_data[1];
+          dprintf("[write] enabled_encoder_modes: %u\n", enabled_encoder_modes);
+          eeprom_update_byte((uint8_t*)EEPROM_ENABLED_ENCODER_MODES, enabled_encoder_modes);
+        }
+        break;
+
+        case id_encoder_custom:
+        {
+          uint8_t custom_encoder_idx = command_data[1];
+          uint8_t encoder_behavior = command_data[2];
+          uint16_t keycode = (command_data[3] << 8) | command_data[4];
+          set_custom_encoder_config(custom_encoder_idx, encoder_behavior, keycode);
+        }
+        break;
+
+        default:
+        {
+          *command_id = id_unhandled;
+        }
+        break;
+      }
+    }
+    break;
+
+    default:
+    {
+      // Unhandled message.
+      *command_id = id_unhandled;
+    }
+    break;
+  }
+}
+
+void encoder_update_kb(uint8_t index, bool clockwise) {
+  if (layer_state_is(1)) {
+    change_encoder_mode(clockwise);
+    return;
+  }
+  uint16_t mapped_code = 0;
+  if (clockwise) {
+    mapped_code = handle_encoder_cw();
+  } else {
+    mapped_code = handle_encoder_ccw();
+  }
+  if(mapped_code != 0){
+    tap_code16(mapped_code);
+  }
+}
+
+void custom_config_load(void){
+#ifdef DYNAMIC_KEYMAP_ENABLE
+  enabled_encoder_modes = eeprom_read_byte((uint8_t*)EEPROM_ENABLED_ENCODER_MODES);
+#endif
+}
+
+void via_init_kb(void)
+{
+  dprintf("VIA is enabled.\n");
+  custom_config_load();
+}
diff --git a/keyboards/nullbitsco/nibble/keymaps/via/via_extras.h b/keyboards/nullbitsco/nibble/keymaps/via/via_extras.h
new file mode 100644
index 0000000000..83c3c13128
--- /dev/null
+++ b/keyboards/nullbitsco/nibble/keymaps/via/via_extras.h
@@ -0,0 +1,39 @@
+/* Copyright 2020 Jay Greco
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include "nibble_encoder.h"
+#include "via.h"
+#include "raw_hid.h"
+#include "dynamic_keymap.h"
+#include "tmk_core/common/eeprom.h"
+
+enum nibble_keyboard_value_id {
+  id_encoder_modes = 0x80,
+  id_unused_mode_1,
+  id_encoder_custom,
+  id_unused_mode_2
+};
+
+// Encoder Behavior
+extern uint8_t encoder_value,
+  encoder_mode,
+  enabled_encoder_modes;
+
+void raw_hid_receive_kb(uint8_t *data, uint8_t length),
+  encoder_update_kb(uint8_t index, bool clockwise),
+  custom_config_load(void),
+  via_init_kb(void);
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