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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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