/* Copyright 2020 sekigon-gonnoc * * 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/>. */ // // Scan EC switch matrix using 74HC7051 // Define MUX_SEL_PINS, DISCHARGE_PIN, and ANALOG_PORT to compile // #pragma once #include <stdint.h> #include <stdbool.h> #include "matrix.h" typedef struct { uint16_t low_threshold; // threshold for key release uint16_t high_threshold; // threshold for key press } ecsm_config_t; int ecsm_init(ecsm_config_t const* const ecsm_config); bool ecsm_matrix_scan(matrix_row_t current_matrix[]); void ecsm_print_matrix(void); uint16_t ecsm_readkey_raw(uint8_t row, uint8_t col); bool ecsm_update_key(matrix_row_t* current_row, uint8_t col, uint16_t sw_value);