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/*
* Copyright (C) 2015 by Multi-Tech Systems
*
* This file is part of libmts-io.
*
* libmts-io is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* libmts-io 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libmts-io. If not, see <http://www.gnu.org/licenses/>.
*
*/
/*!
\file MTS_IO_SerialConnection.h
\brief A brief description
\date Jan 15, 2013
\author sgodinez
A more elaborate description
*/
#ifndef MTS_IO_SERIALCONNECTION_H_
#define MTS_IO_SERIALCONNECTION_H_
#include <mts/MTS_IO_Connection.h>
#include <mts/MTS_IO_LockFile.h>
#include <sys/ioctl.h>
#include <termios.h>
namespace MTS {
namespace IO {
class SerialConnection : public Connection {
public:
enum ETYPE {
RS232,
RS422,
RS485
};
enum EPARITY {
OFF,
ODD,
EVEN
};
enum EDATABITS {
B5,
B6,
B7,
B8
};
enum ESTOPBITS {
B1,
B2
};
enum IOCTL {
LE = TIOCM_LE,
DTR = TIOCM_DTR,
RTS = TIOCM_RTS,
ST = TIOCM_ST,
SR = TIOCM_SR,
CTS = TIOCM_CTS,
CAR = TIOCM_CAR,
CD = TIOCM_CD,
RNG = TIOCM_RNG,
RI = TIOCM_RI,
DSR = TIOCM_DSR
};
enum FLOW_CONTROL {
NONE,
RTS_CTS
};
class Builder {
public:
Builder(const std::string& sPortName);
Builder& type(const ETYPE& eType);
Builder& rs232();
Builder& rs422();
Builder& rs485();
Builder& parity(const EPARITY& eParity);
Builder& parityOff();
Builder& parityOdd();
Builder& parityEven();
Builder& dataBits(const EDATABITS& eDataLength);
Builder& fiveDataBits();
Builder& sixDataBits();
Builder& sevenDataBits();
Builder& eightDataBits();
Builder& stopBits(const ESTOPBITS& eStopBits);
Builder& oneStopBit();
Builder& twoStopBits();
Builder& useLockFile(bool enabled = true);
Builder& flowControl(const FLOW_CONTROL& eFlowControl);
Builder& baudRate(uint32_t iBaud);
Builder& build();
const std::string& getPortName() const;
const uint32_t& getBaudRate() const;
ETYPE getType() const;
EPARITY getParity() const;
EDATABITS getDataBits() const;
ESTOPBITS getStopBits() const;
FLOW_CONTROL getFlowControl() const;
std::string getTypeAsString() const;
bool isUsingLockFile() const;
bool isBuilt() const;
private:
std::string m_sPortName;
uint32_t m_iBaudRate;
ETYPE m_eType;
EPARITY m_eParity;
EDATABITS m_eDataBits;
ESTOPBITS m_eStopBits;
FLOW_CONTROL m_eFlowControl;
bool m_bLockFile;
bool m_bBuilt;
};
SerialConnection(const Builder& oBuilder);
virtual ~SerialConnection();
const std::string& getPortName() const;
uint32_t getBaudRate() const;
void flush();
void drain();
protected:
virtual int getFileDescriptor();
private:
const std::string m_sPortName;
uint32_t m_iBaudRate;
ETYPE m_eType;
EPARITY m_eParity;
EDATABITS m_eDataBits;
ESTOPBITS m_eStopBits;
FLOW_CONTROL m_eFlowControl;
AutoPtr<LockFile> m_apLockFile;
AutoPtr<Lock> m_apHandleLock;
#ifdef WIN32
HANDLE m_iHandle;
#else
int m_iHandle;
termios m_stPrevOptions;
#endif
virtual bool doOpen(const int32_t& timeoutMillis);
virtual void doClose();
virtual int doRead(char* pBuffer, const uint32_t& iSize, int32_t& timeoutMillis);
virtual int doWrite(const char* pBuffer, const uint32_t& iSize, int32_t& timeoutMillis);
void cleanup();
void printPortSetting(const termios *options);
const char* humanSpeed(speed_t speed);
};
}
}
#endif /* MTS_IO_SERIALCONNECTION_H_ */
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