From c6698cfce314cdc75cdaa06b2440d2ae0c7b6ea2 Mon Sep 17 00:00:00 2001
From: sekigon-gonnoc <43873124+sekigon-gonnoc@users.noreply.github.com>
Date: Wed, 21 Jul 2021 02:24:22 +0900
Subject: [Keyboard] Add keyboard GRS-70EC (#11296)

---
 keyboards/sekigon/grs_70ec/matrix.c | 107 ++++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 keyboards/sekigon/grs_70ec/matrix.c

(limited to 'keyboards/sekigon/grs_70ec/matrix.c')

diff --git a/keyboards/sekigon/grs_70ec/matrix.c b/keyboards/sekigon/grs_70ec/matrix.c
new file mode 100644
index 0000000000..7e90d99af6
--- /dev/null
+++ b/keyboards/sekigon/grs_70ec/matrix.c
@@ -0,0 +1,107 @@
+/* Copyright 2020 sekigon-gonnoc
+ *
+ * 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 "grs_70ec.h"
+
+#include "ec_switch_matrix.h"
+#include "matrix.h"
+#include "debug.h"
+#include "split_util.h"
+#include "transport.h"
+#include "debounce.h"
+
+#ifndef LOW_THRESHOLD
+#    define LOW_THRESHOLD 200
+#endif
+
+#ifndef HIGH_THRESHOLD
+#    define HIGH_THRESHOLD 300
+#endif
+
+#define ERROR_DISCONNECT_COUNT 20
+
+#define ROWS_PER_HAND (MATRIX_ROWS / 2)
+
+/* matrix state(1:on, 0:off) */
+extern matrix_row_t raw_matrix[MATRIX_ROWS];  // raw values
+extern matrix_row_t matrix[MATRIX_ROWS];      // debounced values
+
+// row offsets for each hand
+uint8_t thisHand, thatHand;
+
+// user-defined overridable functions
+__attribute__((weak)) void matrix_slave_scan_user(void) {}
+
+void matrix_init_custom(void) {
+    split_pre_init();
+
+    ecsm_config_t ecsm_config = {.low_threshold = LOW_THRESHOLD, .high_threshold = HIGH_THRESHOLD};
+
+    ecsm_init(&ecsm_config);
+
+    thisHand = isLeftHand ? 0 : (ROWS_PER_HAND);
+    thatHand = ROWS_PER_HAND - thisHand;
+
+    split_post_init();
+}
+
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
+    bool updated = ecsm_matrix_scan(current_matrix);
+
+    static int cnt = 0;
+    if (cnt++ == 300) {
+        cnt = 0;
+        ecsm_print_matrix();
+        print("\n");
+    }
+
+    return updated;
+}
+
+void matrix_post_scan(void) {
+    if (is_keyboard_master()) {
+        static uint8_t error_count;
+
+        if (!transport_master(matrix + thatHand)) {
+            error_count++;
+
+            if (error_count > ERROR_DISCONNECT_COUNT) {
+                // reset other half if disconnected
+                dprintf("Error: disconnect split half\n");
+                for (int i = 0; i < ROWS_PER_HAND; ++i) {
+                    matrix[thatHand + i] = 0;
+                }
+            }
+        } else {
+            error_count = 0;
+        }
+
+        matrix_scan_quantum();
+    } else {
+        transport_slave(matrix + thisHand);
+
+        matrix_slave_scan_user();
+    }
+}
+
+uint8_t matrix_scan(void) {
+    bool changed = matrix_scan_custom(raw_matrix);
+
+    debounce(raw_matrix, matrix + thisHand, ROWS_PER_HAND, changed);
+
+    matrix_post_scan();
+    return changed;
+}
-- 
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