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Diffstat (limited to 'keyboards/rgbkb/mun/matrix.c')
| -rw-r--r-- | keyboards/rgbkb/mun/matrix.c | 76 |
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 |