[Keyboard] add kb-elmo boards (#9898)

* add kb-elmo boards

* Apply suggestions from code review

* Apply suggestions from code review

* Apply suggestions from code review

* fix wrong names

* fix VID and UID

keyboards/kb_elmo/aek2_usb/config.h

@@ -0,0 +1,49 @@
+/*
+Copyright 2020 kb-elmo<mail@elmo.space>
+
+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/>.
+*/
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0xA68C
+#define PRODUCT_ID 0xDB52
+#define DEVICE_VER 0x0001
+#define MANUFACTURER kb-elmo
+#define PRODUCT AEK II USB
+
+/* key matrix size */
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 14
+
+/*
+ * Keyboard Matrix Assignments
+ */
+#define MATRIX_ROW_PINS { D5, C1, C4, D0, C3, C2, B3, B4 }
+#define MATRIX_COL_PINS { A1, A0, A2, A3, A4, A5, A6, A7, C7, C6, C5, C0, D6, D1 }
+#define UNUSED_PINS
+
+/* COL2ROW, ROW2COL*/
+#define DIODE_DIRECTION COL2ROW
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE