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/*
Copyright 2011 Jun Wako <wakojun@gmail.com>
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/>.
*/
#ifndef MATRIX_H
#define MATRIX_H
#include <stdint.h>
#include <stdbool.h>
#if (MATRIX_COLS <= 8)
typedef uint8_t matrix_row_t;
#elif (MATRIX_COLS <= 16)
typedef uint16_t matrix_row_t;
#elif (MATRIX_COLS <= 32)
typedef uint32_t matrix_row_t;
#else
#error "MATRIX_COLS: invalid value"
#endif
#define MATRIX_IS_ON(row, col) (matrix_get_row(row) && (1<<col))
#ifdef __cplusplus
extern "C" {
#endif
/* number of matrix rows */
uint8_t matrix_rows(void);
/* number of matrix columns */
uint8_t matrix_cols(void);
/* should be called at early stage of startup before matrix_init.(optional) */
void matrix_setup(void);
/* intialize matrix for scaning. */
void matrix_init(void);
/* scan all key states on matrix */
uint8_t matrix_scan(void);
/* whether modified from previous scan. used after matrix_scan. */
bool matrix_is_modified(void) __attribute__ ((deprecated));
/* whether a switch is on */
bool matrix_is_on(uint8_t row, uint8_t col);
/* matrix state on row */
matrix_row_t matrix_get_row(uint8_t row);
/* print matrix for debug */
void matrix_print(void);
/* power control */
void matrix_power_up(void);
void matrix_power_down(void);
/* executes code for Quantum */
void matrix_init_quantum(void);
void matrix_scan_quantum(void);
void matrix_init_kb(void);
void matrix_scan_kb(void);
void matrix_init_user(void);
void matrix_scan_user(void);
#ifdef I2C_SPLIT
void slave_matrix_init(void);
uint8_t slave_matrix_scan(void);
#endif
#ifdef __cplusplus
}
#endif
#endif
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