1 files changed, 99 insertions, 0 deletions
diff --git a/keyboards/jones/v03_1/matrix.c b/keyboards/jones/v03_1/matrix.c
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+++ b/keyboards/jones/v03_1/matrix.c
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+/*
+Copyright 2012-2020 Jun Wako, Jack Humbert, Yiancar, Takeshi Nishio
+
+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 <stdint.h>
+#include <stdbool.h>
+#include "matrix.h"
+#include "quantum.h"
+
+#define ROW_SHIFTER ((uint16_t)1)
+
+static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
+
+static void select_row(uint8_t row) {
+    setPinOutput(row_pins[row]);
+    writePinLow(row_pins[row]);
+}
+
+static void unselect_row(uint8_t row) {
+    setPinInputHigh(row_pins[row]);
+}
+
+static void unselect_rows(void) {
+    for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        setPinInputHigh(row_pins[x]);
+    }
+}
+
+static void init_pins(void) {
+    unselect_rows();
+    for (uint8_t x = 0; x < MATRIX_COLS; x++) {
+        setPinInputHigh(col_pins[x]);
+    }
+}
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) {
+    // Store last value of row prior to reading
+    matrix_row_t last_row_value = current_matrix[current_row];
+
+    // Clear data in matrix row
+    current_matrix[current_row] = 0;
+
+    // Select row and wait for row selecton to stabilize
+    select_row(current_row);
+    matrix_io_delay();
+
+    // For each col...
+    for (uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
+
+        // skip reading when index equals (= pin itself)
+        if (col_index != current_row) {
+            // Check col pin pin_state
+            if (readPin(col_pins[col_index]) == 0) {
+                // Pin LO, set col bit
+                current_matrix[current_row] |= (ROW_SHIFTER << col_index);
+            } else {
+                // Pin HI, clear col bit
+                current_matrix[current_row] &= ~(ROW_SHIFTER << col_index);
+            }
+        }
+    }
+
+    // Unselect row
+    unselect_row(current_row);
+
+    return (last_row_value != current_matrix[current_row]);
+}
+
+void matrix_init_custom(void) {
+    // initialize key pins
+    init_pins();
+
+    matrix_init_quantum();
+}
+
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
+    bool changed = false;
+
+    // Set row, read cols
+    for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
+        changed |= read_cols_on_row(current_matrix, current_row);
+    }
+
+    matrix_scan_quantum();
+    return changed;
+}