RS232Device.h

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/******************************************************************************
 * 
 * Copyright (c) 2012 
 * 
 * SCHUNK GmbH & Co. KG
 *  
 * ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 
 * 
 * Project name: Drivers for "Amtec M5 Protocol" Electronics V4
 *                                                                        
 * ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 
 * 
 * Email:robotics@schunk.com
 * 
 * ToDo: 
 * 
 * ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met: 
 * 
 *  * Redistributions of source code must retain the above copyright 
 *    notice, this list of conditions and the following disclaimer. 
 *  * Redistributions in binary form must reproduce the above copyright 
 *    notice, this list of conditions and the following disclaimer in the 
 *    documentation and/or other materials provided with the distribution. 
 *  * Neither the name of SCHUNK GmbH & Co. KG nor the names of its 
 *    contributors may be used to endorse or promote products derived from 
 *    this software without specific prior written permission. 
 * 
 * This program is free software: you can redistribute it and/or modify 
 * it under the terms of the GNU Lesser General Public License LGPL as 
 * published by the Free Software Foundation, either version 3 of the 
 * License, or (at your option) any later version. 
 * 
 * This program 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 LGPL for more details. 
 * 
 * You should have received a copy of the GNU Lesser General Public 
 * License LGPL along with this program. 
 * If not, see <http://www.gnu.org/licenses/>.
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 ******************************************************************************/


#ifndef CRS232DEVICE_H
#define CRS232DEVICE_H

// ---- local includes ------------------------------------------------------ ;

#include "../Device/ProtocolDevice.h"
#include "../Util/StopWatch.h"

// ---- global includes ----------------------------------------------------- ;

#ifdef __LINUX__
        #include <fcntl.h>
        #include <termios.h>    
#endif
#ifdef __QNX__
        #include <sys/types.h>
        #include <sys/stat.h>
        #include <sys/select.h>
        #include <fcntl.h>
        #include <termios.h>    
#endif

class CRS232Device : public CProtocolDevice  
{
        private:

                // ---- private data ---------------------------------------------------- ;
        
                // ---- private auxiliary functions ------------------------------------- ;

        protected:

                // ---- protected data -------------------------------------------------- ;

#if defined (_WIN32)
                        HANDLE m_hDevice;
#endif
#if defined(__LINUX__)
                        int m_hDevice;
#endif
#if defined (__QNX__)
                        int m_hDevice;
#endif
                        int m_iDeviceId;
                        unsigned long  m_uiBaudRate;    
                        unsigned long m_uiTimeOut;
                        CStopWatch m_clTimer;

                // ---- protected auxiliary functions ----------------------------------- ;

                        int getDeviceError(int iErrorState);
                        int setBaudRate();
                        int setMessageId(unsigned long uiMessageId);
                        int clearReadQueue();
                        int reinit(unsigned char ucBaudRateId);
                        int readDevice(CProtocolMessage& rclProtocolMessage);
                        int writeDevice(CProtocolMessage& rclProtocolMessage);

        public:

                // ---- public data ----------------------------------------------------- ;


        
                // ---- constructors / destructor --------------------------------------- ;

                        CRS232Device();
                        CRS232Device(const CRS232Device& rclRS232Device);
                        virtual ~CRS232Device();

                // ---- operators ------------------------------------------------------- ;
                
                        // assignment operator
                        CRS232Device& operator=(const CRS232Device& rclRS232Device);

                // ---- query functions ------------------------------------------------- ;

                // ---- modify functions ------------------------------------------------ ;
                        
                        void setQueueSize(unsigned short uiQueueSize);
                        void setTimeOut(unsigned long uiTimeOut);

                // ---- I/O functions --------------------------------------------------- ;

                // ---- exec functions -------------------------------------------------- ;

                        int init();
                        int init(const char* acInitString);
                        int exit();
};

#endif