GB: Add input description file

include/mgba/internal/gb/input.h

@@ -0,0 +1,29 @@
+/* Copyright (c) 2013-2019 Jeffrey Pfau
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#ifndef GB_INPUT_H
+#define GB_INPUT_H
+
+#include <mgba-util/common.h>
+
+CXX_GUARD_START
+
+#include <mgba/core/input.h>
+
+enum GBKey {
+	GB_KEY_A = 0,
+	GB_KEY_B = 1,
+	GB_KEY_SELECT = 2,
+	GB_KEY_START = 3,
+	GB_KEY_RIGHT = 4,
+	GB_KEY_LEFT = 5,
+	GB_KEY_UP = 6,
+	GB_KEY_DOWN = 7,
+	GB_KEY_MAX,
+};
+
+CXX_GUARD_END
+
+#endif

src/gb/CMakeLists.txt

@@ -4,6 +4,7 @@ set(SOURCE_FILES
 	cheats.c
 	core.c
 	gb.c
+	input.c
 	io.c
 	mbc.c
 	memory.c

src/gb/input.c

@@ -0,0 +1,29 @@
+/* Copyright (c) 2013-2019 Jeffrey Pfau
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include <mgba/internal/gb/input.h>
+
+#include <mgba/gb/interface.h>
+
+const struct mInputPlatformInfo GBInputInfo = {
+	.platformName = "gb",
+	.keyId = (const char*[]) {
+		"A",
+		"B",
+		"Select",
+		"Start",
+		"Right",
+		"Left",
+		"Up",
+		"Down",
+	},
+	.nKeys = GB_KEY_MAX,
+	.hat = {
+		.up = GB_KEY_UP,
+		.left = GB_KEY_LEFT,
+		.down = GB_KEY_DOWN,
+		.right = GB_KEY_RIGHT
+	}
+};