84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/*
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Copyright 2011 Jun Wako <wakojun@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MATRIX_H
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#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
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typedef uint8_t matrix_row_t;
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#elif MATRIX_COLS <= 16
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typedef uint16_t matrix_row_t;
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#elif MATRIX_COLS <= 32
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typedef uint32_t matrix_row_t;
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#else
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# error "There are too many columns."
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#endif
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#if DIODE_DIRECTION == ROW2COL
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# if MATRIX_ROWS <= 8
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typedef uint8_t matrix_col_t;
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# elif MATRIX_ROWS <= 16
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typedef uint16_t matrix_col_t;
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# elif MATRIX_ROWS <= 32
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typedef uint32_t matrix_col_t;
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# else
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# error "There are too many rows."
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# endif
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#endif
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typedef struct {
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uint8_t input_addr:4;
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uint8_t bit:4;
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} io_pin_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* counts the number of rows in the matrix */
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uint8_t matrix_rows(void);
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/* counts the number of columns in the matrix */
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uint8_t matrix_cols(void);
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/* sets up the matrix before matrix_init */
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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 */
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uint8_t matrix_scan(void);
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/* checks if the matrix has been modified */
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bool matrix_is_modified(void) __attribute__ ((deprecated));
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/* checks if a key is pressed */
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bool matrix_is_on(uint8_t row, uint8_t col);
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/* inspects the state of a row in the matrix */
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matrix_row_t matrix_get_row(uint8_t row);
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/* prints the matrix for debugging */
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void matrix_print(void);
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/* counts the total number of keys pressed */
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uint8_t matrix_key_count(void);
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/* controls power to the matrix */
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void matrix_power_up(void);
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void matrix_power_down(void);
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/* executes code for Quantum */
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void matrix_init_quantum(void);
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void matrix_scan_quantum(void);
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#ifdef __cplusplus
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}
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#endif
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#endif
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