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Diffstat (limited to 'keyboards/planck/rev6_drop/matrix.c')
| -rw-r--r-- | keyboards/planck/rev6_drop/matrix.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/keyboards/planck/rev6_drop/matrix.c b/keyboards/planck/rev6_drop/matrix.c new file mode 100644 index 0000000000..49e115d029 --- /dev/null +++ b/keyboards/planck/rev6_drop/matrix.c @@ -0,0 +1,166 @@ +/* + * Copyright 2018 Jack Humbert <jack.humb@gmail.com> + * + * 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 "debug.h" +#include "matrix.h" + +/* + * col: { B11, B10, B2, B1, A7, B0 } + * row: { A10, A9, A8, B15, C13, C14, C15, A2 } + */ +/* matrix state(1:on, 0:off) */ +static matrix_row_t matrix[MATRIX_ROWS]; +static matrix_row_t matrix_debouncing[MATRIX_COLS]; +static bool debouncing = false; +static uint16_t debouncing_time = 0; + +__attribute__((weak)) void matrix_init_user(void) {} + +__attribute__((weak)) void matrix_scan_user(void) {} + +__attribute__((weak)) void matrix_init_kb(void) { matrix_init_user(); } + +__attribute__((weak)) void matrix_scan_kb(void) { matrix_scan_user(); } + +void matrix_init(void) { + dprintf("matrix init\n"); + // debug_matrix = true; + + // actual matrix setup + palSetPadMode(GPIOB, 11, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOB, 10, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOB, 2, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOB, 1, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOA, 7, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOB, 0, PAL_MODE_OUTPUT_PUSHPULL); + + palSetPadMode(GPIOA, 10, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOA, 9, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOA, 8, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOB, 15, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOC, 13, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOC, 14, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOC, 15, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOA, 2, PAL_MODE_INPUT_PULLDOWN); + + memset(matrix, 0, MATRIX_ROWS * sizeof(matrix_row_t)); + memset(matrix_debouncing, 0, MATRIX_COLS * sizeof(matrix_row_t)); + + matrix_init_quantum(); +} + +uint8_t matrix_scan(void) { + // actual matrix + for (int col = 0; col < MATRIX_COLS; col++) { + matrix_row_t data = 0; + + // strobe col { B11, B10, B2, B1, A7, B0 } + switch (col) { + case 0: + palSetPad(GPIOB, 11); + break; + case 1: + palSetPad(GPIOB, 10); + break; + case 2: + palSetPad(GPIOB, 2); + break; + case 3: + palSetPad(GPIOB, 1); + break; + case 4: + palSetPad(GPIOA, 7); + break; + case 5: + palSetPad(GPIOB, 0); + break; + } + + // need wait to settle pin state + wait_us(20); + + // read row data { A10, A9, A8, B15, C13, C14, C15, A2 } + data = ((palReadPad(GPIOA, 10) << 0) | (palReadPad(GPIOA, 9) << 1) | (palReadPad(GPIOA, 8) << 2) | (palReadPad(GPIOB, 15) << 3) | (palReadPad(GPIOC, 13) << 4) | (palReadPad(GPIOC, 14) << 5) | (palReadPad(GPIOC, 15) << 6) | (palReadPad(GPIOA, 2) << 7)); + + // unstrobe col { B11, B10, B2, B1, A7, B0 } + switch (col) { + case 0: + palClearPad(GPIOB, 11); + break; + case 1: + palClearPad(GPIOB, 10); + break; + case 2: + palClearPad(GPIOB, 2); + break; + case 3: + palClearPad(GPIOB, 1); + break; + case 4: + palClearPad(GPIOA, 7); + break; + case 5: + palClearPad(GPIOB, 0); + break; + } + + if (matrix_debouncing[col] != data) { + matrix_debouncing[col] = data; + debouncing = true; + debouncing_time = timer_read(); + } + } + + if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCE) { + for (int row = 0; row < MATRIX_ROWS; row++) { + matrix[row] = 0; + for (int col = 0; col < MATRIX_COLS; col++) { + matrix[row] |= ((matrix_debouncing[col] & (1 << row) ? 1 : 0) << col); + } + } + debouncing = false; + } + + matrix_scan_quantum(); + + return 1; +} + +bool matrix_is_on(uint8_t row, uint8_t col) { return (matrix[row] & (1 << col)); } + +matrix_row_t matrix_get_row(uint8_t row) { return matrix[row]; } + +void matrix_print(void) { + dprintf("\nr/c 01234567\n"); + for (uint8_t row = 0; row < MATRIX_ROWS; row++) { + dprintf("%X0: ", row); + matrix_row_t data = matrix_get_row(row); + for (int col = 0; col < MATRIX_COLS; col++) { + if (data & (1 << col)) + dprintf("1"); + else + dprintf("0"); + } + dprintf("\n"); + } +} |