ComPort.h

// --------------------------------------------------------------------------
#ifndef _COMPORT_H_
#define _COMPORT_H_
// --------------------------------------------------------------------------
#include <termios.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <string>
// --------------------------------------------------------------------------
class ComPort
{
public:
    enum Speed
    {
        ComSpeed0=B0,
        ComSpeed50=B50,
        ComSpeed75=B75,
        ComSpeed110=B110,
        ComSpeed134=B134,
        ComSpeed150=B150,
        ComSpeed200=B200,
        ComSpeed300=B300,
        ComSpeed600=B600,
        ComSpeed1200=B1200,
        ComSpeed1800=B1800,
        ComSpeed2400=B2400,
        ComSpeed4800=B4800,
        ComSpeed9600=B9600,
        ComSpeed19200=B19200,
        ComSpeed38400=B38400,
        ComSpeed57600=B57600,
        ComSpeed115200=B115200,
        ComSpeed230400=B230400,
        ComSpeed460800=B460800,
        ComSpeed500000=B500000,
        ComSpeed576000=B576000,
        ComSpeed921600=B921600,
        ComSpeed1000000=B1000000,
        ComSpeed1152000=B1152000,
        ComSpeed1500000=B1500000,
        ComSpeed2000000=B2000000,
        ComSpeed2500000=B2500000,
        ComSpeed3000000=B3000000,
        ComSpeed3500000=B3500000,
        ComSpeed4000000=B4000000
    };
    enum Parity
    {
        Odd,
        Even,
        Space,
        Mark,
        NoParity
    };
    enum CharacterSize
    {
        CSize5=CS5,
        CSize6=CS6,
        CSize7=CS7,
        CSize8=CS8
    };
    enum StopBits
    {
        OneBit=1,
        OneAndHalfBits=2,
        TwoBits=3
    };

    ComPort( const std::string comDevice, bool nocreate=false );
    virtual ~ComPort();
    
    inline std::string getDevice(){ return dev; }
    
    void setSpeed( Speed s );
    void setSpeed( std::string speed );
    inline Speed getSpeed(){ return speed; }
    
    static Speed getSpeed( const std::string s );
    static std::string getSpeed( Speed s );
    
    void setParity(Parity);
    void setCharacterSize(CharacterSize);
    void setStopBits(StopBits sBit);
    
    virtual void setTimeout( int msec );
    inline int getTimeout(){ return uTimeout/1000; } // msec
    void setWaiting( bool waiting );
    
    virtual unsigned char receiveByte();
    virtual void sendByte(unsigned char x);

    virtual int receiveBlock(unsigned char*msg,int len);
    virtual int sendBlock(unsigned char*msg,int len);
    
    void setBlocking(bool blocking);
    
    virtual void cleanupChannel();
    virtual void reopen();
    
protected:
    void openPort();

    static const int BufSize=8192;
    unsigned char buf[BufSize];
    int curSym;
    int bufLength;
    int fd;
    int uTimeout;
    bool waiting;
    Speed speed;
    std::string dev;
    
    virtual unsigned char m_receiveByte( bool wait );
    
private:
    struct termios oldTermios;
};
// --------------------------------------------------------------------------
#endif // _COMPORT_H_
// --------------------------------------------------------------------------