[Keyboard] Create the battleship gamepad keyboard. (#14551)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/handwired/battleship_gamepad/battleship_gamepad.c

@@ -0,0 +1,30 @@
+/* Copyright 2021 Andrew Braini
+ *
+ * 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 "battleship_gamepad.h"
+#include "joystick.h"
+#include "analog.h"
+
+/* joystick config */
+joystick_config_t joystick_axes[JOYSTICK_AXES_COUNT] = {
+    [0] = JOYSTICK_AXIS_IN(F5, 1023, 512, 0),
+    [1] = JOYSTICK_AXIS_IN(F4, 0, 512, 1023)
+};
+
+/* joystick button code (thumbstick pressed) */
+void keyboard_pre_init_kb(void) {
+	setPinInputHigh(F6);
+}