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/* 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);
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