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// Copyright 2024 Nick Brassel (@tzarc)
// SPDX-License-Identifier: GPL-2.0-or-later
#include QMK_KEYBOARD_H
#if defined(ENCODER_ENABLE) || defined(ENCODER_MAP_ENABLE)
# if !defined(ENCODER_SETTLE_PIN_STATE_DELAY_US)
# define ENCODER_SETTLE_PIN_STATE_DELAY_US 2
# endif
static pin_t matrix_row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
void encoder_driver_task(void) {
// Set all relevant rows to output, which is different to the matrix expectations
for (uint8_t i = 0; i < 4; i++) {
gpio_set_pin_output(matrix_row_pins[i]);
}
// Read each encoder
for (uint8_t i = 0; i < 4; i++) {
// Set the row pin low for the corresponding encoder...
for (uint8_t j = 0; j < 4; j++) {
gpio_write_pin(matrix_row_pins[j], (i == j) ? 0 : 1);
}
// ...and let them settle.
wait_us(ENCODER_SETTLE_PIN_STATE_DELAY_US);
// Run the normal encoder handling
extern void encoder_quadrature_handle_read(uint8_t index, uint8_t pin_a_state, uint8_t pin_b_state);
extern uint8_t encoder_quadrature_read_pin(uint8_t index, bool pad_b);
encoder_quadrature_handle_read(i, encoder_quadrature_read_pin(i, false), encoder_quadrature_read_pin(i, true));
}
// Set all rows back to input-high as per matrix expectations
for (uint8_t i = 0; i < 4; i++) {
gpio_set_pin_input_high(matrix_row_pins[i]);
}
}
#endif // defined(ENCODER_ENABLE) || defined(ENCODER_MAP_ENABLE)
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