1 files changed, 38 insertions, 0 deletions
diff --git a/keyboards/sekigon/grs_70ec/ec_switch_matrix.h b/keyboards/sekigon/grs_70ec/ec_switch_matrix.h
new file mode 100644
index 0000000000..c690fe8e27
--- /dev/null
+++ b/keyboards/sekigon/grs_70ec/ec_switch_matrix.h
@@ -0,0 +1,38 @@
+/* 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/>.
+ */
+
+//
+// Scan EC switch matrix using 74HC7051
+// Define MUX_SEL_PINS, DISCHARGE_PIN, and ANALOG_PORT to compile
+//
+
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "matrix.h"
+
+typedef struct {
+    uint16_t low_threshold;   // threshold for key release
+    uint16_t high_threshold;  // threshold for key press
+} ecsm_config_t;
+
+int      ecsm_init(ecsm_config_t const* const ecsm_config);
+bool     ecsm_matrix_scan(matrix_row_t current_matrix[]);
+void     ecsm_print_matrix(void);
+uint16_t ecsm_readkey_raw(uint8_t row, uint8_t col);
+bool     ecsm_update_key(matrix_row_t* current_row, uint8_t col, uint16_t sw_value);