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/*
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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 "MATRIX_COLS: invalid value"
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#endif
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#define MATRIX_IS_ON(row, col) (matrix_get_row(row) && (1<<col))
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* number of matrix rows */
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uint8_t matrix_rows(void);
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/* number of matrix columns */
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uint8_t matrix_cols(void);
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/* should be called at early stage of startup before matrix_init.(optional) */
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void matrix_setup(void);
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/* intialize matrix for scaning. */
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void matrix_init(void);
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/* scan all key states on matrix */
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uint8_t matrix_scan(void);
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/* whether modified from previous scan. used after matrix_scan. */
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bool matrix_is_modified(void) __attribute__ ((deprecated));
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/* whether a swtich is on */
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bool matrix_is_on(uint8_t row, uint8_t col);
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/* matrix state on row */
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matrix_row_t matrix_get_row(uint8_t row);
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/* print matrix for debug */
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void matrix_print(void);
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/* power control */
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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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void matrix_init_kb(void);
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void matrix_scan_kb(void);
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void matrix_init_user(void);
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void matrix_scan_user(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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