Import Mbed OS hard-float snapshot

hal/usb/usb_phy_api.h

@@ -0,0 +1,37 @@
+
+/** \addtogroup hal */
+/** @{*/
+/*
+ * Copyright (c) 2018-2019, Arm Limited and affiliates.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef MBED_USB_PHY_API_H
+#define MBED_USB_PHY_API_H
+
+#include "USBPhy.h"
+
+/** Return a the USBPhy instance for this hardware
+ *
+ * For details on adding support for a USBPhy see the specification in USBPhy.h.
+ *
+ * @return A pointer to a USBPhy instance
+ * @note Calling this function on platforms without a USBPhy will result in an
+ * error
+ */
+USBPhy *get_usb_phy();
+
+#endif
+
+/** @}*/