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84 lines
2.3 KiB
84 lines
2.3 KiB
/*
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* Copyright (C) 2010,2012,2018 by Jonathan Naylor G4KLX
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* Copyright (C) 2021 by Geoffrey Merck F4FXL / KC3FRA
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef APRSCollector_H
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#define APRSCollector_H
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#include "Defs.h"
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enum APRS_STATE {
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AS_NONE,
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AS_GGA,
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AS_RMC,
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AS_CRC
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};
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class CAPRSCollector {
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public:
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CAPRSCollector();
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~CAPRSCollector();
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void writeHeader(const std::string& callsign);
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bool writeData(const unsigned char* data);
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void reset();
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void sync();
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unsigned int getData(unsigned char* data, unsigned int length);
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private:
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APRS_STATE m_state;
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unsigned char* m_ggaData;
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unsigned int m_ggaLength;
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bool m_ggaValid;
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unsigned char* m_rmcData;
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unsigned int m_rmcLength;
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bool m_rmcValid;
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unsigned char* m_crcData;
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unsigned int m_crcLength;
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bool m_crcValid;
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unsigned char* m_buffer;
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SLOWDATA_STATE m_slowData;
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std::string m_collector;
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std::string m_callsign;
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bool addGPSData(const unsigned char* data);
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void addGGAData();
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bool addRMCData();
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bool addCRCData();
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bool checkXOR(const unsigned char* data, unsigned int length) const;
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unsigned char calcXOR(const unsigned char* buffer, unsigned int length) const;
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bool checkCRC(const unsigned char* data, unsigned int length) const;
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unsigned int calcCRC(const unsigned char* buffer, unsigned int length) const;
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unsigned int convertNMEA1(unsigned char* data, unsigned int length);
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unsigned int convertNMEA2(unsigned char* data, unsigned int length);
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void dstarCallsignToAPRS(const std::string& dstarCallsign, char* aprsCallsign) const;
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char* mystrsep(char** sp, const char* sep) const;
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};
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#endif
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