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- /*
- Copyright 2011 Jun Wako <[email protected]>
-
- 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))
-
-
- /* number of matrix rows */
- uint8_t matrix_rows(void);
- /* number of matrix columns */
- uint8_t matrix_cols(void);
- /* intialize matrix for scaning. should be called once. */
- 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);
- /* whether ghosting occur on matrix. */
- bool matrix_has_ghost(void);
- /* whether a swtich 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);
- /* count keys pressed */
- uint8_t matrix_key_count(void);
- /* print matrix for debug */
- void matrix_debug(void);
-
-
- #endif
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