summaryrefslogtreecommitdiff
path: root/keyboards/rgbkb/mun/matrix.c
diff options
context:
space:
mode:
Diffstat (limited to 'keyboards/rgbkb/mun/matrix.c')
-rw-r--r--keyboards/rgbkb/mun/matrix.c76
1 files changed, 0 insertions, 76 deletions
diff --git a/keyboards/rgbkb/mun/matrix.c b/keyboards/rgbkb/mun/matrix.c
deleted file mode 100644
index 2472d217c7..0000000000
--- a/keyboards/rgbkb/mun/matrix.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * ----------------------------------------------------------------------------
- * "THE BEER-WARE LICENSE" (Revision 42):
- * <https://github.com/KarlK90> wrote this file. As long as you retain this
- * notice you can do whatever you want with this stuff. If we meet some day, and
- * you think this stuff is worth it, you can buy me a beer in return. KarlK90
- * ----------------------------------------------------------------------------
- */
-
-#include "matrix.h"
-#include "atomic_util.h"
-#include "gpio.h"
-
-#define ROWS_PER_HAND (MATRIX_ROWS / 2)
-static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
-static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
-
-void matrix_init_pins(void) {
- for (size_t i = 0; i < MATRIX_COLS; i++) {
- setPinInputHigh(col_pins[i]);
- }
- for (size_t i = 0; i < ROWS_PER_HAND; i++) {
- setPinOutput(row_pins[i]);
- writePinHigh(row_pins[i]);
- }
-}
-
-void matrix_read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) {
- /* Drive row pin low. */
- ATOMIC_BLOCK_FORCEON { writePinLow(row_pins[current_row]); }
- matrix_output_select_delay();
-
- /* Read all columns in one go, aka port scanning. */
- uint16_t porta = palReadPort(GPIOA);
- uint16_t portb = palReadPort(GPIOB);
-
-// clang-format off
- /* Order of pins on the mun is: A0, B11, B0, B10, B12, B2, A8
- Pin is active low, therefore we have to invert the result. */
- matrix_row_t cols = ~(((porta & (0x1 << 0)) >> 0) // A0 (0)
- | ((portb & (0x1 << 11)) >> 10) // B11 (1)
- | ((portb & (0x1 << 0)) << 2) // B0 (2)
- | ((portb & (0x1 << 10)) >> 7) // B10 (3)
- | ((portb & (0x1 << 12)) >> 8) // B12 (4)
- | ((portb & (0x1 << 2)) << 3) // B2 (5)
- | ((porta & (0x1 << 8)) >> 2)); // A8 (6)
-// clang-format on
-
- /* Reverse the order of columns for left hand as the board is flipped. */
- // if (isLeftHand) {
- // #if defined(__arm__)
- // /* rbit assembly reverses bit order of 32bit registers. */
- // uint32_t temp = cols;
- // __asm__("rbit %0, %1" : "=r"(temp) : "r"(temp));
- // cols = temp >> 24;
- // #else
- // /* RISC-V bit manipulation extension not present. Use bit-hack.
- // https://graphics.stanford.edu/~seander/bithacks.html#ReverseByteWith32Bits */
- // cols = (matrix_row_t)(((cols * 0x0802LU & 0x22110LU) | (cols * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16);
- // #endif
- // }
-
- current_matrix[current_row] = cols;
-
- /* Drive row pin high again. */
- ATOMIC_BLOCK_FORCEON { writePinHigh(row_pins[current_row]); }
- matrix_output_unselect_delay(current_row, cols != 0);
-}
-
-#if defined(BUSY_WAIT)
-void matrix_output_unselect_delay(uint8_t line, bool key_pressed) {
- for (int32_t i = 0; i < BUSY_WAIT_INSTRUCTIONS; i++) {
- __asm__ volatile("nop" ::: "memory");
- }
-}
-#endif