119 lines
3.3 KiB
C
119 lines
3.3 KiB
C
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/*
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Copyright 2023 QVEX Tech
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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 <string.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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static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
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static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
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extern matrix_row_t raw_matrix[MATRIX_ROWS]; // raw values
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extern matrix_row_t matrix[MATRIX_ROWS]; // debounced values
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static void select_row(uint8_t row) {
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setPinOutput(row_pins[row]);
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writePinLow(row_pins[row]);
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}
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static void unselect_row(uint8_t row) {
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setPinInputHigh(row_pins[row]);
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}
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static void unselect_rows(void) {
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for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
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setPinInputHigh(row_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(col_pins[x]);
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}
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setPinInputHigh(PIN_JU);
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setPinInputHigh(PIN_JD);
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setPinInputHigh(PIN_JL);
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setPinInputHigh(PIN_JR);
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setPinInputHigh(PIN_JC);
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setPinInputHigh(PIN_TC);
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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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if (current_row > 2) return false;
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matrix_row_t last_row_value = current_matrix[current_row];
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current_matrix[current_row] = 0;
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select_row(current_row);
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wait_us(30);
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for (uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
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uint8_t pin_state = readPin(col_pins[col_index]);
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current_matrix[current_row] |= pin_state ? 0 : (MATRIX_ROW_SHIFTER << col_index);
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}
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unselect_row(current_row);
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return (last_row_value != current_matrix[current_row]);
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}
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static bool read_encoder_switches(matrix_row_t current_matrix[]) {
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matrix_row_t last_fourth_row = current_matrix[3];
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matrix_row_t last_fifth_row = current_matrix[4];
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current_matrix[3] = 0;
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current_matrix[4] = 0;
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current_matrix[4] |= !readPin(PIN_TC) ? (1 << 1) : 0;
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if (!readPin(PIN_JC)) {
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if (!readPin(PIN_JU)) {
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current_matrix[3] |= (1 << 0);
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} else if (!readPin(PIN_JD)) {
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current_matrix[3] |= (1 << 1);
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} else if (!readPin(PIN_JL)) {
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current_matrix[3] |= (1 << 2);
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} else if (!readPin(PIN_JR)) {
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current_matrix[3] |= (1 << 3);
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} else {
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current_matrix[4] |= (1 << 0);
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}
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}
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return last_fourth_row != current_matrix[3] || last_fifth_row != current_matrix[4];
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}
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void matrix_init_custom(void) {
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init_pins();
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}
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bool matrix_scan_custom(void) {
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bool changed = false;
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for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
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changed |= read_cols_on_row(raw_matrix, current_row);
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}
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changed |= read_encoder_switches(raw_matrix);
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return changed;
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}
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