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#ifndef _QEXTSERIALBASE_H_
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#define _QEXTSERIALBASE_H_
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#include <QIODevice>
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#include <QFile>
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#ifdef QT_THREAD_SUPPORT
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#include <QThread>
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#include <QMutex>
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#endif
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/*if all warning messages are turned off, flag portability warnings to be turned off as well*/
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#ifdef _TTY_NOWARN_
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#define _TTY_NOWARN_PORT_
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#endif
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/*macros for thread support*/
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#ifdef QT_THREAD_SUPPORT
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#define LOCK_MUTEX() mutex->lock()
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#define UNLOCK_MUTEX() mutex->unlock()
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#else
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#define LOCK_MUTEX()
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#define UNLOCK_MUTEX()
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#endif
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/*macros for warning messages*/
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#ifdef _TTY_NOWARN_PORT_
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#define TTY_PORTABILITY_WARNING(s)
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#else
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#define TTY_PORTABILITY_WARNING(s) qWarning(s)
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#endif
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#ifdef _TTY_NOWARN_
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#define TTY_WARNING(s)
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#else
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#define TTY_WARNING(s) qWarning(s)
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#endif
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/*line status constants*/
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#define LS_CTS  0x01
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#define LS_DSR  0x02
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#define LS_DCD  0x04
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#define LS_RI   0x08
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#define LS_RTS  0x10
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#define LS_DTR  0x20
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#define LS_ST   0x40
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#define LS_SR   0x80
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/*error constants*/
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#define E_NO_ERROR                   0
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#define E_INVALID_FD                 1
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#define E_NO_MEMORY                  2
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#define E_CAUGHT_NON_BLOCKED_SIGNAL  3
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#define E_PORT_TIMEOUT               4
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#define E_INVALID_DEVICE             5
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#define E_BREAK_CONDITION            6
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#define E_FRAMING_ERROR              7
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#define E_IO_ERROR                   8
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#define E_BUFFER_OVERRUN             9
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#define E_RECEIVE_OVERFLOW          10
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#define E_RECEIVE_PARITY_ERROR      11
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#define E_TRANSMIT_OVERFLOW         12
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#define E_READ_FAILED               13
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#define E_WRITE_FAILED              14
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/*enums for port settings*/
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enum NamingConvention {
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    WIN_NAMES,
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    IRIX_NAMES,
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    HPUX_NAMES,
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    SUN_NAMES,
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    DIGITAL_NAMES,
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    FREEBSD_NAMES,
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    LINUX_NAMES
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};
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enum BaudRateType {
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    BAUD50,                //POSIX ONLY
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    BAUD75,                //POSIX ONLY
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    BAUD110,
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    BAUD134,               //POSIX ONLY
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    BAUD150,               //POSIX ONLY
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    BAUD200,               //POSIX ONLY
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    BAUD300,
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    BAUD600,
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    BAUD1200,
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    BAUD1800,              //POSIX ONLY
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    BAUD2400,
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    BAUD4800,
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    BAUD9600,
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    BAUD14400,             //WINDOWS ONLY
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    BAUD19200,
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    BAUD38400,
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    BAUD56000,             //WINDOWS ONLY
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    BAUD57600,
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    BAUD76800,             //POSIX ONLY
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    BAUD115200,
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    BAUD128000,            //WINDOWS ONLY
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    BAUD256000             //WINDOWS ONLY
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};
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enum DataBitsType {
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    DATA_5,
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    DATA_6,
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    DATA_7,
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    DATA_8
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};
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enum ParityType {
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    PAR_NONE,
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    PAR_ODD,
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    PAR_EVEN,
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    PAR_MARK,               //WINDOWS ONLY
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    PAR_SPACE
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};
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enum StopBitsType {
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    STOP_1,
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    STOP_1_5,               //WINDOWS ONLY
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    STOP_2
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};
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enum FlowType {
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    FLOW_OFF,
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    FLOW_HARDWARE,
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    FLOW_XONXOFF
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};
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/*structure to contain port settings*/
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struct PortSettings {
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    BaudRateType BaudRate;
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    DataBitsType DataBits;
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    ParityType Parity;
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    StopBitsType StopBits;
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    FlowType FlowControl;
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    ulong Timeout_Sec;
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    ulong Timeout_Millisec;
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};
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class QextSerialBase : public QIODevice {
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public:
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    QextSerialBase();
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    QextSerialBase(const QString & name);
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    virtual ~QextSerialBase();
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    virtual void construct();
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    virtual void setPortName(const QString & name);
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    virtual QString portName() const;
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    virtual void setBaudRate(BaudRateType)=0;
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    virtual BaudRateType baudRate() const;
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    virtual void setDataBits(DataBitsType)=0;
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    virtual DataBitsType dataBits() const;
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    virtual void setParity(ParityType)=0;
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    virtual ParityType parity() const;
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    virtual void setStopBits(StopBitsType)=0;
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    virtual StopBitsType stopBits() const;
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    virtual void setFlowControl(FlowType)=0;
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    virtual FlowType flowControl() const;
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    virtual void setTimeout(ulong, ulong)=0;
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    virtual bool open(OpenMode mode=0)=0;
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    virtual bool isSequential() const;
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    virtual void close()=0;
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    virtual void flush()=0;
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    virtual qint64 size() const=0;
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    virtual qint64 bytesAvailable()=0;
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    virtual bool atEnd() const;
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    virtual void ungetChar(char c)=0;
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    virtual qint64 readLine(char * data, qint64 maxSize);
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    virtual ulong lastError() const;
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    virtual void translateError(ulong error)=0;
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    virtual void setDtr(bool set=true)=0;
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    virtual void setRts(bool set=true)=0;
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    virtual ulong lineStatus()=0;
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protected:
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    QString port;
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    PortSettings Settings;
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    ulong lastErr;
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#ifdef QT_THREAD_SUPPORT
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    static QMutex* mutex;
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    static ulong refCount;
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#endif
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    virtual qint64 readData(char * data, qint64 maxSize)=0;
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    virtual qint64 writeData(const char * data, qint64 maxSize)=0;
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};
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#endif