diff options
Diffstat (limited to 'keyboards/tzarc/djinn/djinn_portscan_matrix.c')
| -rw-r--r-- | keyboards/tzarc/djinn/djinn_portscan_matrix.c | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/keyboards/tzarc/djinn/djinn_portscan_matrix.c b/keyboards/tzarc/djinn/djinn_portscan_matrix.c deleted file mode 100644 index 6fcfd48bba..0000000000 --- a/keyboards/tzarc/djinn/djinn_portscan_matrix.c +++ /dev/null @@ -1,117 +0,0 @@ -// Copyright 2018-2022 Nick Brassel (@tzarc) -// SPDX-License-Identifier: GPL-2.0-or-later -#include "quantum.h" -#include <hal_pal.h> -#include "djinn.h" - -#define GPIOB_BITMASK (1 << 13 | 1 << 14 | 1 << 15) // B13, B14, B15 -#define GPIOB_OFFSET 13 -#define GPIOB_COUNT 3 -#define GPIOC_BITMASK (1 << 6 | 1 << 7 | 1 << 8) // C6, C7, C8 -#define GPIOC_OFFSET 6 - -// Pin definitions -static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS; -static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS; - -void matrix_wait_for_pin(pin_t pin, uint8_t target_state) { - rtcnt_t start = chSysGetRealtimeCounterX(); - rtcnt_t end = start + 5000; - while (chSysIsCounterWithinX(chSysGetRealtimeCounterX(), start, end)) { - if (readPin(pin) == target_state) { - break; - } - } -} - -void matrix_wait_for_port(stm32_gpio_t *port, uint32_t target_bitmask) { - rtcnt_t start = chSysGetRealtimeCounterX(); - rtcnt_t end = start + 5000; - while (chSysIsCounterWithinX(chSysGetRealtimeCounterX(), start, end)) { - if ((palReadPort(port) & target_bitmask) == target_bitmask) { - break; - } - } -} - -void matrix_init_custom(void) { - for (int i = 0; i < MATRIX_ROWS; ++i) { - setPinInputHigh(row_pins[i]); - } - for (int i = 0; i < MATRIX_COLS; ++i) { - setPinInputHigh(col_pins[i]); - } -} - -bool matrix_scan_custom(matrix_row_t current_matrix[]) { - static matrix_row_t temp_matrix[MATRIX_ROWS] = {0}; - - for (int current_col = 0; current_col < MATRIX_COLS; ++current_col) { - // Keep track of the pin we're working with - pin_t curr_col_pin = col_pins[current_col]; - - // Setup the output column pin - setPinOutput(curr_col_pin); - writePinLow(curr_col_pin); - matrix_wait_for_pin(curr_col_pin, 0); - - // Read the row ports - uint32_t gpio_b = palReadPort(GPIOB); - uint32_t gpio_c = palReadPort(GPIOC); - - // Unselect the row pin - setPinInputHigh(curr_col_pin); - - // Construct the packed bitmask for the pins - uint32_t readback = ~(((gpio_b & GPIOB_BITMASK) >> GPIOB_OFFSET) | (((gpio_c & GPIOC_BITMASK) >> GPIOC_OFFSET) << GPIOB_COUNT)); - - // Inject values into the matrix - for (int i = 0; i < MATRIX_ROWS; ++i) { - if (readback & (1 << i)) { - temp_matrix[i] |= (1ul << current_col); - } else { - temp_matrix[i] &= ~(1ul << current_col); - } - } - - // Wait for readback of the unselected column to go high - matrix_wait_for_pin(curr_col_pin, 1); - - // Wait for readback of each port to go high -- unselecting the row would have been completed - matrix_wait_for_port(GPIOB, GPIOB_BITMASK); - matrix_wait_for_port(GPIOC, GPIOC_BITMASK); - } - - // Check if we've changed, return the last-read data - bool changed = memcmp(current_matrix, temp_matrix, sizeof(temp_matrix)) != 0; - if (changed) { - memcpy(current_matrix, temp_matrix, sizeof(temp_matrix)); - } - return changed; -} - -void matrix_wait_for_interrupt(void) { - // Set up row/col pins and attach callback - for (int i = 0; i < ARRAY_SIZE(col_pins); ++i) { - setPinOutput(col_pins[i]); - writePinLow(col_pins[i]); - } - for (int i = 0; i < ARRAY_SIZE(row_pins); ++i) { - setPinInputHigh(row_pins[i]); - palEnableLineEvent(row_pins[i], PAL_EVENT_MODE_BOTH_EDGES); - } - - // Wait for an interrupt - __WFI(); - - // Now that the interrupt has woken us up, reset all the row/col pins back to defaults - for (int i = 0; i < ARRAY_SIZE(row_pins); ++i) { - palDisableLineEvent(row_pins[i]); - writePinHigh(row_pins[i]); - setPinInputHigh(row_pins[i]); - } - for (int i = 0; i < ARRAY_SIZE(col_pins); ++i) { - writePinHigh(col_pins[i]); - setPinInputHigh(col_pins[i]); - } -}
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