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-rw-r--r--keyboards/matrix/noah/matrix.c166
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 0000000000..02861a8e37
--- /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");
+ }
+}