diff options
Diffstat (limited to 'keyboards/keychron/q5/matrix.c')
| -rw-r--r-- | keyboards/keychron/q5/matrix.c | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/keyboards/keychron/q5/matrix.c b/keyboards/keychron/q5/matrix.c deleted file mode 100644 index 28ef877504..0000000000 --- a/keyboards/keychron/q5/matrix.c +++ /dev/null @@ -1,209 +0,0 @@ -/* Copyright 2022 @ Keychron (https://www.keychron.com) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "matrix.h" -#include "quantum.h" - -// Pin connected to DS of 74HC595 -#define DATA_PIN C15 -// Pin connected to SH_CP of 74HC595 -#define CLOCK_PIN A1 -// Pin connected to ST_CP of 74HC595 -#define LATCH_PIN A0 - -#ifdef MATRIX_ROW_PINS -static pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS; -#endif // MATRIX_ROW_PINS -#ifdef MATRIX_COL_PINS -static pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS; -#endif // MATRIX_COL_PINS - -#define ROWS_PER_HAND (MATRIX_ROWS) - -static inline void setPinOutput_writeLow(pin_t pin) { - ATOMIC_BLOCK_FORCEON { - setPinOutput(pin); - writePinLow(pin); - } -} - -static inline void setPinOutput_writeHigh(pin_t pin) { - ATOMIC_BLOCK_FORCEON { - setPinOutput(pin); - writePinHigh(pin); - } -} - -static inline void setPinInputHigh_atomic(pin_t pin) { - ATOMIC_BLOCK_FORCEON { - setPinInputHigh(pin); - } -} - -static inline uint8_t readMatrixPin(pin_t pin) { - if (pin != NO_PIN) { - return readPin(pin); - } else { - return 1; - } -} - -static void shiftOut(uint8_t dataOut) { - for (uint8_t i = 0; i < 8; i++) { - if (dataOut & 0x1) { - setPinOutput_writeHigh(DATA_PIN); - } else { - setPinOutput_writeLow(DATA_PIN); - } - dataOut = dataOut >> 1; - setPinOutput_writeHigh(CLOCK_PIN); - setPinOutput_writeLow(CLOCK_PIN); - } - setPinOutput_writeHigh(LATCH_PIN); - setPinOutput_writeLow(LATCH_PIN); -} - -static void shiftout_single(uint8_t data) { - if (data & 0x1) { - setPinOutput_writeHigh(DATA_PIN); - } else { - setPinOutput_writeLow(DATA_PIN); - } - setPinOutput_writeHigh(CLOCK_PIN); - setPinOutput_writeLow(CLOCK_PIN); - - setPinOutput_writeHigh(LATCH_PIN); - setPinOutput_writeLow(LATCH_PIN); -} - -static bool select_col(uint8_t col) { - pin_t pin = col_pins[col]; - - if (pin != NO_PIN) { - setPinOutput_writeLow(pin); - return true; - } else { - if (col == 10) { - shiftout_single(0x00); - } else { - shiftout_single(0x01); - } - return true; - } - return false; -} - -static void unselect_col(uint8_t col) { - pin_t pin = col_pins[col]; - - if (pin != NO_PIN) { -#ifdef MATRIX_UNSELECT_DRIVE_HIGH - setPinOutput_writeHigh(pin); -#else - setPinInputHigh_atomic(pin); -#endif - } else { - if (col == (MATRIX_COLS - 1)) - setPinOutput_writeHigh(CLOCK_PIN); - setPinOutput_writeLow(CLOCK_PIN); - setPinOutput_writeHigh(LATCH_PIN); - setPinOutput_writeLow(LATCH_PIN); - } -} - -static void unselect_cols(void) { - // unselect column pins - for (uint8_t x = 0; x < MATRIX_COLS; x++) { - pin_t pin = col_pins[x]; - if (pin != NO_PIN) { -#ifdef MATRIX_UNSELECT_DRIVE_HIGH - setPinOutput_writeHigh(pin); -#else - setPinInputHigh_atomic(pin); -#endif - } - if (x == (MATRIX_COLS - 1)) - // unselect shift Register - shiftOut(0xFF); - } -} - -static void matrix_init_pins(void) { - unselect_cols(); - for (uint8_t x = 0; x < MATRIX_ROWS; x++) { - if (row_pins[x] != NO_PIN) { - setPinInputHigh_atomic(row_pins[x]); - } - } -} - -static void matrix_read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col, matrix_row_t row_shifter) { - bool key_pressed = false; - - // Select col - if (!select_col(current_col)) { // select col - return; // skip NO_PIN col - } - - if (current_col < 10) { - matrix_output_select_delay(); - } else { - for (int8_t cycle = 4; cycle > 0; cycle--) { - matrix_output_select_delay(); // 0.25us - matrix_output_select_delay(); - matrix_output_select_delay(); - matrix_output_select_delay(); - } - } - - // For each row... - for (uint8_t row_index = 0; row_index < ROWS_PER_HAND; row_index++) { - // Check row pin state - if (readMatrixPin(row_pins[row_index]) == 0) { - // Pin LO, set col bit - current_matrix[row_index] |= row_shifter; - key_pressed = true; - } else { - // Pin HI, clear col bit - current_matrix[row_index] &= ~row_shifter; - } - - } - - // // Unselect col - unselect_col(current_col); - matrix_output_unselect_delay(current_col, key_pressed); // wait for all Row signals to go HIGH -} - -void matrix_init_custom(void) { - // initialize key pins - matrix_init_pins(); -} - -bool matrix_scan_custom(matrix_row_t current_matrix[]) { - matrix_row_t curr_matrix[MATRIX_ROWS] = {0}; - - // Set col, read rows - matrix_row_t row_shifter = MATRIX_ROW_SHIFTER; - for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++, row_shifter <<= 1) { - matrix_read_rows_on_col(curr_matrix, current_col, row_shifter); - } - - bool changed = memcmp(current_matrix, curr_matrix, sizeof(curr_matrix)) != 0; - if (changed) memcpy(current_matrix, curr_matrix, sizeof(curr_matrix)); - - return changed; -} |