[Keyboard] Add halfcliff keyboard (#13515)
Co-authored-by: Drashna Jaelre <drashna@live.com> Co-authored-by: Ryan <fauxpark@gmail.com>
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277
keyboards/halfcliff/matrix.c
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277
keyboards/halfcliff/matrix.c
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/*
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Copyright 2012 Jun Wako <wakojun@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include <stdbool.h>
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#include "util.h"
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#include "matrix.h"
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#include "debounce.h"
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#include "quantum.h"
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#include "split_util.h"
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#include "config.h"
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#include "transport.h"
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#define ERROR_DISCONNECT_COUNT 5
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#define ROWS_PER_HAND (MATRIX_ROWS / 2)
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static pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
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static pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
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/* matrix state(1:on, 0:off) */
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static matrix_row_t raw_matrix[MATRIX_ROWS]; // raw values
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static matrix_row_t matrix[MATRIX_ROWS]; // debounced values
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// row offsets for each hand
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uint8_t thisHand, thatHand;
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// user-defined overridable functions
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__attribute__((weak)) void matrix_init_kb(void) { matrix_init_user(); }
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__attribute__((weak)) void matrix_scan_kb(void) { matrix_scan_user(); }
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__attribute__((weak)) void matrix_init_user(void) {}
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__attribute__((weak)) void matrix_scan_user(void) {}
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__attribute__((weak)) void matrix_slave_scan_user(void) {}
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matrix_row_t matrix_get_row(uint8_t row) { return matrix[row]; }
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void matrix_print(void) {}
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static inline void setPinOutput_writeLow(pin_t pin) {
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ATOMIC_BLOCK_FORCEON {
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setPinOutput(pin);
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writePinLow(pin);
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}
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}
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static inline void setPinInputHigh_atomic(pin_t pin) {
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ATOMIC_BLOCK_FORCEON { setPinInputHigh(pin); }
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}
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// matrix code
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static void select_row(uint8_t row) { setPinOutput_writeLow(row_pins[row]); }
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static void unselect_row(uint8_t row) { setPinInputHigh_atomic(row_pins[row]); }
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static void unselect_rows(void) {
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for (uint8_t x = 0; x < ROWS_PER_HAND; x++) {
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setPinInputHigh_atomic(row_pins[x]);
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}
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}
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static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) {
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// Start with a clear matrix row
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matrix_row_t current_row_value = 0;
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// Select row
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select_row(current_row);
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wait_us(30);
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// For each col...
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for (uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
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// Select the col pin to read (active low)
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uint8_t pin_state = readPin(col_pins[col_index]);
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// Populate the matrix row with the state of the col pin
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current_row_value |= pin_state ? 0 : (MATRIX_ROW_SHIFTER << col_index);
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}
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// Unselect row
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unselect_row(current_row);
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if (current_row + 1 < MATRIX_ROWS) {
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wait_us(30); // wait for row signal to go HIGH
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}
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// If the row has changed, store the row and return the changed flag.
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if (current_matrix[current_row] != current_row_value) {
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current_matrix[current_row] = current_row_value;
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return true;
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}
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return false;
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}
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static void select_col(uint8_t col) { setPinOutput_writeLow(col_pins[col]); }
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static void unselect_col(uint8_t col) { setPinInputHigh_atomic(col_pins[col]); }
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static void unselect_cols(void) {
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for (uint8_t x = 0; x < MATRIX_COLS; x++) {
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setPinInputHigh_atomic(col_pins[x]);
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}
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}
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static void init_pins(void) {
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unselect_rows();
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for (uint8_t x = 0; x < MATRIX_COLS; x++) {
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setPinInputHigh_atomic(col_pins[x]);
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}
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unselect_cols();
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for (uint8_t x = 0; x < ROWS_PER_HAND; x++) {
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setPinInputHigh_atomic(row_pins[x]);
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}
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}
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static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col) {
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bool matrix_changed = false;
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// Select col
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select_col(current_col);
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wait_us(30);
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// For each row...
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for (uint8_t row_index = 0; row_index < ROWS_PER_HAND; row_index++) {
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// Store last value of row prior to reading
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matrix_row_t last_row_value = current_matrix[row_index];
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matrix_row_t current_row_value = last_row_value;
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// Check row pin state
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if (readPin(row_pins[row_index]) == 0) {
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// Pin LO, set col bit
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current_row_value |= (MATRIX_ROW_SHIFTER << current_col);
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} else {
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// Pin HI, clear col bit
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current_row_value &= ~(MATRIX_ROW_SHIFTER << current_col);
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}
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// Determine if the matrix changed state
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if ((last_row_value != current_row_value)) {
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matrix_changed |= true;
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current_matrix[row_index] = current_row_value;
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}
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}
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// Unselect col
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unselect_col(current_col);
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if (current_col + 1 < MATRIX_COLS) {
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wait_us(30); // wait for col signal to go HIGH
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}
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return matrix_changed;
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}
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void matrix_init(void) {
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split_pre_init();
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// Set pinout for right half if pinout for that half is defined
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if (!isLeftHand) {
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#ifdef DIRECT_PINS_RIGHT
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const pin_t direct_pins_right[MATRIX_ROWS][MATRIX_COLS] = DIRECT_PINS_RIGHT;
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for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
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for (uint8_t j = 0; j < MATRIX_COLS; j++) {
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direct_pins[i][j] = direct_pins_right[i][j];
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}
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}
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#endif
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#ifdef MATRIX_ROW_PINS_RIGHT
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const pin_t row_pins_right[MATRIX_ROWS] = MATRIX_ROW_PINS_RIGHT;
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for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
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row_pins[i] = row_pins_right[i];
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}
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#endif
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#ifdef MATRIX_COL_PINS_RIGHT
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const pin_t col_pins_right[MATRIX_COLS] = MATRIX_COL_PINS_RIGHT;
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for (uint8_t i = 0; i < MATRIX_COLS; i++) {
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col_pins[i] = col_pins_right[i];
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}
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#endif
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}
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thisHand = isLeftHand ? 0 : (ROWS_PER_HAND);
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thatHand = ROWS_PER_HAND - thisHand;
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// initialize key pins
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init_pins();
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// initialize matrix state: all keys off
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for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
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raw_matrix[i] = 0;
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matrix[i] = 0;
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}
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debounce_init(ROWS_PER_HAND);
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matrix_init_quantum();
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split_post_init();
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}
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bool matrix_post_scan(void) {
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bool changed = false;
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if (is_keyboard_master()) {
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static uint8_t error_count;
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matrix_row_t slave_matrix[ROWS_PER_HAND] = {0};
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if (!transport_master(matrix + thisHand, slave_matrix)) {
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error_count++;
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if (error_count > ERROR_DISCONNECT_COUNT) {
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// reset other half if disconnected
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for (int i = 0; i < ROWS_PER_HAND; ++i) {
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matrix[thatHand + i] = 0;
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slave_matrix[i] = 0;
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}
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changed = true;
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}
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} else {
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error_count = 0;
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for (int i = 0; i < ROWS_PER_HAND; ++i) {
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if (matrix[thatHand + i] != slave_matrix[i]) {
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matrix[thatHand + i] = slave_matrix[i];
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changed = true;
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}
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}
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}
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matrix_scan_quantum();
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} else {
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transport_slave(matrix + thatHand, matrix + thisHand);
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matrix_slave_scan_user();
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}
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return changed;
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}
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uint8_t matrix_scan(void) {
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bool local_changed = false;
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static matrix_row_t temp_raw_matrix[MATRIX_ROWS]; // temp raw values
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// Set row, read cols
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for (uint8_t current_row = 0; current_row < ROWS_PER_HAND/2; current_row++) {
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local_changed |= read_cols_on_row(raw_matrix, current_row);
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}
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// Set col, read rows
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for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
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local_changed |= read_rows_on_col(temp_raw_matrix, current_col);
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//Updated key matrix on lines 6-10 (or lines 16-20)
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if(local_changed) {
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for (uint8_t i = ROWS_PER_HAND/2; i < ROWS_PER_HAND; i++) {
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raw_matrix[i] = temp_raw_matrix[i];
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}
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}
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}
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debounce(raw_matrix, matrix + thisHand, ROWS_PER_HAND, local_changed);
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bool remote_changed = matrix_post_scan();
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return (uint8_t)(local_changed || remote_changed);
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}
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