Started working on radiosonde RX

Removed some warnings
Better handling of absent map file in GeoMap ?

firmware/common/sonde_packet.hpp

@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2017 Furrtek
+ *
+ * This file is part of PortaPack.
+ *
+ * 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, 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; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __SONDE_PACKET_H__
+#define __SONDE_PACKET_H__
+
+#include <cstdint>
+#include <cstddef>
+
+#include "field_reader.hpp"
+#include "baseband_packet.hpp"
+#include "manchester.hpp"
+
+namespace sonde {
+
+using SN = uint64_t;
+
+class Packet {
+public:
+	enum class Type : uint32_t {
+		Unknown = 0,
+		M10 = 1,
+	};
+
+	Packet(
+		const Type type,
+		const baseband::Packet& packet
+	) : packet_ { packet },
+		decoder_ { packet_ },
+		reader_ { decoder_ },
+		type_ { type }
+	{
+	}
+
+	size_t length() const;
+	
+	bool is_valid() const;
+
+	Timestamp received_at() const;
+
+	Type type() const;
+	SN serial_number() const;
+
+	FormattedSymbols symbols_formatted() const;
+
+	bool crc_ok() const;
+
+private:
+	using Reader = FieldReader<ManchesterDecoder, BitRemapNone>;
+
+	const baseband::Packet packet_;
+	const ManchesterDecoder decoder_;
+	const Reader reader_;
+	const Type type_;
+
+	bool crc_ok_M10() const;
+};
+
+} /* namespace sonde */
+
+#endif/*__SONDE_PACKET_H__*/