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https://github.com/thooge/esp32-nmea2000-obp60.git
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98 lines
3.1 KiB
C++
98 lines
3.1 KiB
C++
/*
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NMEA0183AISMsg.h
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Copyright (c) 2019 Ronnie Zeiller, www.zeiller.eu
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Based on the works of Timo Lappalainen NMEA2000 and NMEA0183 Library
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to use,
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copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
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Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _tNMEA0183AISMsg_H_
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#define _tNMEA0183AISMsg_H_
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#include <NMEA0183Msg.h>
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#include <string.h>
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#include <time.h>
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#include <bitset>
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#include <stdint.h>
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#include <math.h>
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#include <string>
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#ifndef AIS_MSG_MAX_LEN
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#define AIS_MSG_MAX_LEN 100 // maximum length of AIS Payload
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#endif
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#ifndef AIS_BIN_MAX_LEN
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#define AIS_BIN_MAX_LEN 500 // maximum length of AIS Binary Payload (before encoding to Ascii)
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#endif
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#define BITSET_LENGTH 120
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class tNMEA0183AISMsg : public tNMEA0183Msg {
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protected: // AIS-NMEA
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std::bitset<BITSET_LENGTH> bset;
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static const char *EmptyAISField; // 6bits 0 not used yet.....
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static const char *AsciChar;
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uint16_t iAddPldBin;
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char Payload[AIS_MSG_MAX_LEN];
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uint8_t iAddPld;
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char talker[4]="VDM";
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char channel[2]="A";
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std::bitset<AIS_BIN_MAX_LEN> PayloadBin;
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public:
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// Clear message
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void ClearAIS();
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public:
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tNMEA0183AISMsg();
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const char *GetPayloadFix(int &padBits,uint16_t fixLen=168);
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const char *GetPayload(int &padBits,uint16_t offset=0,uint16_t bitLen=0);
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bool BuildMsg5Part1();
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bool BuildMsg5Part2();
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bool InitAis(int max=1,int number=1,int sequence=-1);
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// Generally Used
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bool AddIntToPayloadBin(int32_t ival, uint16_t countBits);
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bool AddBoolToPayloadBin(bool &bval);
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bool AddEncodedCharToPayloadBin(char *sval, size_t Length);
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/**
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* @param channelA - if set A, otherwise B
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* @param own - if set VDO, else VDM
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*/
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void SetChannelAndTalker(bool channelA,bool own=false);
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/**
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* convert the payload to ascii
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* return the number of padding bits
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* @param bitSize the number of bits to be used, 0 - use all bits
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*/
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template <unsigned int SZ>
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int ConvertBinaryAISPayloadBinToAscii(std::bitset<SZ> &src,uint16_t maxSize, uint16_t bitSize,uint16_t offset=0);
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// AIS Helper functions
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protected:
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inline int32_t aRoundToInt(double x) {
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return (x >= 0) ? (int32_t) floor(x + 0.5) : (int32_t) ceil(x - 0.5);
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}
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};
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#endif
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