firmware: add qtpy/usb_switch.c

firmware/src/boards/qtpy/usb_switch.c

@@ -0,0 +1,31 @@
+/**
+ * switch control for USB port shared by Apollo and FPGA
+ *
+ * This file is part of Apollo.
+ *
+ * Copyright (c) 2023 Great Scott Gadgets <[email protected]>
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "usb_switch.h"
+
+/**
+ * Hand off shared USB port to FPGA.
+ */
+void hand_off_usb(void)
+{
+}
+
+/**
+ * Take control of USB port from FPGA.
+ */
+void take_over_usb(void)
+{
+}
+
+/**
+ * Handle switch control user request.
+ */
+void switch_control_task(void)
+{
+}