qmk-dactyl-manuform-a/tmk_core/common/matrix.h

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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/>.
*/
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#ifndef MATRIX_H
#define MATRIX_H
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#include <stdint.h>
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#include <stdbool.h>
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#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
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# error "There are too many columns."
#endif
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#if DIODE_DIRECTION == ROW2COL
# if MATRIX_ROWS <= 8
typedef uint8_t matrix_col_t;
# elif MATRIX_ROWS <= 16
typedef uint16_t matrix_col_t;
# elif MATRIX_ROWS <= 32
typedef uint32_t matrix_col_t;
# else
# error "There are too many rows."
# endif
#endif
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typedef struct {
uint8_t input_addr:4;
uint8_t bit:4;
} io_pin_t;
#ifdef __cplusplus
extern "C" {
#endif
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/* counts the number of rows in the matrix */
uint8_t matrix_rows(void);
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/* counts the number of columns in the matrix */
uint8_t matrix_cols(void);
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/* sets up the matrix before matrix_init */
void matrix_setup(void);
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/* intializes the matrix */
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void matrix_init(void);
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/* scans the entire matrix */
uint8_t matrix_scan(void);
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/* checks if the matrix has been modified */
bool matrix_is_modified(void) __attribute__ ((deprecated));
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/* checks if a key is pressed */
bool matrix_is_on(uint8_t row, uint8_t col);
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/* inspects the state of a row in the matrix */
matrix_row_t matrix_get_row(uint8_t row);
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/* prints the matrix for debugging */
void matrix_print(void);
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/* counts the total number of keys pressed */
uint8_t matrix_key_count(void);
/* controls power to the matrix */
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void matrix_power_up(void);
void matrix_power_down(void);
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/* executes code for Quantum */
void matrix_init_quantum(void);
void matrix_scan_quantum(void);
#ifdef __cplusplus
}
#endif
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#endif