opt_encoder.h (1216B)
1 /* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com> 2 * Copyright 2020 Ploopy Corporation 3 * 4 * This program is free software: you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation, either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program. If not, see <http://www.gnu.org/licenses/>. 16 */ 17 #pragma once 18 19 #include <stdint.h> 20 //typedef char int8_t; 21 //typedef unsigned short uint16_t; 22 23 #ifndef SCROLLER_AR_SIZE 24 # define SCROLLER_AR_SIZE 31 25 #endif 26 27 #ifndef SCROLL_THRESH_RANGE_LIM 28 # define SCROLL_THRESH_RANGE_LIM 10 29 #endif 30 31 void opt_encoder_init(void); 32 /* Return the rotation direction, positive value means clockwise, negative value 33 * means counter-clockwise */ 34 int8_t opt_encoder_handler(uint16_t curA, uint16_t curB);