NMEA2000_SocketCAN.h

/*
NMEA2000_socketCAN.h

2017 Copyright (c) Al Thomason   All rights reserved

Support the socketCAN access (ala, Linux, RPi)
See: https://github.com/thomasonw/NMEA2000_socketCAN
     https://github.com/ttlappalainen/NMEA2000


Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.


THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


Inherited NMEA2000 object for socketCAN setup. See also NMEA2000 library.
*/



#ifndef NMEA2000_SOCKETCAN_H_
#define NMEA2000_SOCKETCAN_H_

#include <stdio.h>
#include "NMEA2000.h"
#include "N2kMsg.h"

using namespace std;




//-----------------------------------------------------------------------------
class tNMEA2000_SocketCAN : public tNMEA2000
{
protected:
    bool CANSendFrame(unsigned long id, unsigned char len, const unsigned char *buf, bool wait_sent);
    bool CANOpen();
    bool CANGetFrame(unsigned long &id, unsigned char &len, unsigned char *buf);

    int   skt;
    char*  _CANport;


public:
    tNMEA2000_SocketCAN(char* CANport=NULL);
    void     SetCANport(char *CANport=NULL);                // If used, must be called before CANOpen() 

};



//-----------------------------------------------------------------------------
class tSocketStream : public N2kStream {
protected:
  int port;
public:
    tSocketStream(const char *_port=0);
    virtual ~tSocketStream();
    int read();
    size_t write(const uint8_t* data, size_t size);
};


void     delay(uint32_t ms);
uint32_t millis(void);

#endif /* NMEA2000_SOCKETCAN_H */