qmk_firmware/keyboards/nullbitsco/nibble/keymaps/via/nibble_encoder.h

/* 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);