Import Mbed OS hard-float snapshot

connectivity/drivers/cellular/MultiTech/DragonflyNano/PPP/SARA4_PPP.h

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2017, 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 SARA4_PPP_H_
+#define SARA4_PPP_H_
+
+#ifdef TARGET_FF_ARDUINO
+#ifndef MBED_CONF_SARA4_PPP_TX
+#define MBED_CONF_SARA4_PPP_TX D1
+#endif
+#ifndef MBED_CONF_SARA4_PPP_RX
+#define MBED_CONF_SARA4_PPP_RX D0
+#endif
+#endif /* TARGET_FF_ARDUINO */
+
+#include "AT_CellularDevice.h"
+
+namespace mbed {
+
+class SARA4_PPP : public AT_CellularDevice {
+
+public:
+    SARA4_PPP(FileHandle *fh);
+
+public: // CellularDevice
+    virtual AT_CellularNetwork *open_network_impl(ATHandler &at);
+};
+
+} // namespace mbed
+
+#endif // SARA4_PPP_H_