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Diffstat (limited to 'keyboards/annepro2/matrix.c')
| -rw-r--r-- | keyboards/annepro2/matrix.c | 63 | 
1 files changed, 63 insertions, 0 deletions
| diff --git a/keyboards/annepro2/matrix.c b/keyboards/annepro2/matrix.c new file mode 100644 index 0000000000..a1585e4ddf --- /dev/null +++ b/keyboards/annepro2/matrix.c @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2018 Charlie Waters + * + * 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/>. + */ + +#include <stdint.h> +#include <stdbool.h> +#include <string.h> +#include <hal.h> +#include "timer.h" +#include "wait.h" +#include "print.h" +#include "matrix.h" +#include "annepro2.h" + +pin_t row_list[MATRIX_ROWS] = MATRIX_ROW_PINS; +pin_t col_list[MATRIX_COLS] = MATRIX_COL_PINS; + +bool matrix_scan_custom(matrix_row_t current_matrix[]) { +    bool matrix_has_changed = false; +    // cache of input ports for columns +    static uint16_t port_cache[4]; +    // scan each row +    for (int row = 0; row < MATRIX_ROWS; row++) { +        palClearLine(row_list[row]); +        __NOP(); +        __NOP(); +        __NOP(); +        __NOP(); +        // read i/o ports +        port_cache[0] = palReadPort(IOPORTA); +        port_cache[1] = palReadPort(IOPORTB); +        port_cache[2] = palReadPort(IOPORTC); +        port_cache[3] = palReadPort(IOPORTD); +        palSetLine(row_list[row]); + +        // get columns from ports +        matrix_row_t data = 0; +        for (int col = 0; col < MATRIX_COLS; ++col) { +            pin_t line = col_list[col]; +            uint16_t port = port_cache[HT32_PAL_IDX(PAL_PORT(line))]; +            data |= (((port & (1 << PAL_PAD(line))) ? 0 : 1) << col); +        } + +        if (current_matrix[row] != data) { +            current_matrix[row] = data; +            matrix_has_changed  = true; +        } +    } +    return matrix_has_changed; +}
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