diff options
Diffstat (limited to 'keyboards/matrix/noah/matrix.c')
| -rw-r--r-- | keyboards/matrix/noah/matrix.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/keyboards/matrix/noah/matrix.c b/keyboards/matrix/noah/matrix.c new file mode 100644 index 000000000..02861a8e3 --- /dev/null +++ b/keyboards/matrix/noah/matrix.c @@ -0,0 +1,166 @@ +/** + * matrix.c + */ + +#include <stdint.h> +#include <stdbool.h> +#include <string.h> +#include "hal.h" +#include "quantum.h" +#include "timer.h" +#include "wait.h" +#include "printf.h" +#include "matrix.h" + +/** + * + * Row pins are input with internal pull-down. + * Column pins are output and strobe with high. + * Key is high or 1 when it turns on. + * + */ +/* 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; + +void matrix_init(void) +{ + //debug_enable = true; + palSetLineMode(LINE_COL_1, PAL_MODE_OUTPUT_PUSHPULL); + palSetLineMode(LINE_COL_2, PAL_MODE_OUTPUT_PUSHPULL); + palSetLineMode(LINE_COL_3, PAL_MODE_OUTPUT_PUSHPULL); + palSetLineMode(LINE_COL_4, PAL_MODE_OUTPUT_PUSHPULL); + palSetLineMode(LINE_COL_5, PAL_MODE_OUTPUT_PUSHPULL); + palSetLineMode(LINE_COL_6, PAL_MODE_OUTPUT_PUSHPULL); + palSetLineMode(LINE_COL_7, PAL_MODE_OUTPUT_PUSHPULL); + palSetLineMode(LINE_COL_8, PAL_MODE_OUTPUT_PUSHPULL); + palSetLineMode(LINE_COL_9, PAL_MODE_OUTPUT_PUSHPULL); + palSetLineMode(LINE_COL_10, PAL_MODE_OUTPUT_PUSHPULL); + palSetLineMode(LINE_COL_11, PAL_MODE_OUTPUT_PUSHPULL); + palSetLineMode(LINE_COL_12, PAL_MODE_OUTPUT_PUSHPULL); + palSetLineMode(LINE_COL_13, PAL_MODE_OUTPUT_PUSHPULL); + palSetLineMode(LINE_COL_14, PAL_MODE_OUTPUT_PUSHPULL); + palSetLineMode(LINE_COL_15, PAL_MODE_OUTPUT_PUSHPULL); + + palSetLineMode(LINE_ROW_1, PAL_MODE_INPUT_PULLDOWN); + palSetLineMode(LINE_ROW_2, PAL_MODE_INPUT_PULLDOWN); + palSetLineMode(LINE_ROW_3, PAL_MODE_INPUT_PULLDOWN); + palSetLineMode(LINE_ROW_4, PAL_MODE_INPUT_PULLDOWN); + palSetLineMode(LINE_ROW_5, PAL_MODE_INPUT_PULLDOWN); + + palClearLine(LINE_COL_1); + palClearLine(LINE_COL_2); + palClearLine(LINE_COL_3); + palClearLine(LINE_COL_4); + palClearLine(LINE_COL_5); + palClearLine(LINE_COL_6); + palClearLine(LINE_COL_7); + palClearLine(LINE_COL_8); + palClearLine(LINE_COL_9); + palClearLine(LINE_COL_10); + palClearLine(LINE_COL_11); + palClearLine(LINE_COL_12); + palClearLine(LINE_COL_13); + palClearLine(LINE_COL_14); + palClearLine(LINE_COL_15); + + 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) +{ + for (int col = 0; col < MATRIX_COLS; col++) { + matrix_row_t data = 0; + switch (col) { + case 0: palSetLine(LINE_COL_1); break; + case 1: palSetLine(LINE_COL_2); break; + case 2: palSetLine(LINE_COL_3); break; + case 3: palSetLine(LINE_COL_4); break; + case 4: palSetLine(LINE_COL_5); break; + case 5: palSetLine(LINE_COL_6); break; + case 6: palSetLine(LINE_COL_7); break; + case 7: palSetLine(LINE_COL_8); break; + case 8: palSetLine(LINE_COL_9); break; + case 9: palSetLine(LINE_COL_10); break; + case 10: palSetLine(LINE_COL_11); break; + case 11: palSetLine(LINE_COL_12); break; + case 12: palSetLine(LINE_COL_13); break; + case 13: palSetLine(LINE_COL_14); break; + case 14: palSetLine(LINE_COL_15); break; + } + + // need wait to settle pin state + wait_us(20); + + data = ( + (palReadLine(LINE_ROW_1) << 0 ) | + (palReadLine(LINE_ROW_2) << 1 ) | + (palReadLine(LINE_ROW_3) << 2 ) | + (palReadLine(LINE_ROW_4) << 3 ) | + (palReadLine(LINE_ROW_5) << 4 ) + ); + + switch (col) { + case 0: palClearLine(LINE_COL_1); break; + case 1: palClearLine(LINE_COL_2); break; + case 2: palClearLine(LINE_COL_3); break; + case 3: palClearLine(LINE_COL_4); break; + case 4: palClearLine(LINE_COL_5); break; + case 5: palClearLine(LINE_COL_6); break; + case 6: palClearLine(LINE_COL_7); break; + case 7: palClearLine(LINE_COL_8); break; + case 8: palClearLine(LINE_COL_9); break; + case 9: palClearLine(LINE_COL_10); break; + case 10: palClearLine(LINE_COL_11); break; + case 11: palClearLine(LINE_COL_12); break; + case 12: palClearLine(LINE_COL_13); break; + case 13: palClearLine(LINE_COL_14); break; + case 14: palClearLine(LINE_COL_15); break; + } + + if (matrix_debouncing[col] != data) { + matrix_debouncing[col] = data; + debouncing = true; + debouncing_time = timer_read(); + } + } + + if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCING_DELAY) { + 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) +{ + printf("\nr/c 01234567\n"); + for (uint8_t row = 0; row < MATRIX_ROWS; row++) { + printf("%X0: ", row); + matrix_row_t data = matrix_get_row(row); + for (int col = 0; col < MATRIX_COLS; col++) { + if (data & (1<<col)) + printf("1"); + else + printf("0"); + } + printf("\n"); + } +} |