modem.h

/*
    KMLOCfg
 
    A utility to configure the ELSA MicroLink(tm) Office modem.
 
    Copyright (C) 2000 Oliver Gantz <Oliver.Gantz@epost.de>
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 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 General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 
    ------
    ELSA and MicroLink are trademarks of ELSA AG, Aachen.
*/
 
#ifndef MODEM_H
#define MODEM_H
 
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
 
#include <termios.h>
 
#include <tqobject.h>
#include <tqstring.h>
#include <tqtimer.h>
#include <tqsocketnotifier.h>
#include <tqfile.h>
 
#include "kandyprefs.h"
 
 
 
 
class Modem : public TQObject
{
    TQ_OBJECT
  
public:
    Modem(KandyPrefs *kprefs, TQObject *parent = 0, const char *name = 0);
    virtual ~Modem();
 
    void setSpeed(int speed);
    void setData(int data);
    void setParity(char parity);
    void setStop(int stop);
 
    bool open();
    void close();
 
        bool isOpen() { return mOpen; }
 
    void flush();
 
    bool lockDevice();
    void unlockDevice();
 
    bool dsrOn();
    bool ctsOn();
 
    void writeChar(const char c);
    void writeLine(const char *line);
 
    void timerStart(int msec);
 
    void receiveXModem(bool crc);
    void abortXModem();
 
private slots:
    void timerDone();
 
    void readChar(int);
    void readXChar(int);
 
private:
  bool mOpen;
 
    void init();
    void xreset();
 
    uchar calcChecksum();
    ushort calcCRC();
 
    bool is_locked;
    struct termios init_tty;
 
    speed_t cspeed;
    tcflag_t cflag;
 
    int fd;
    TQTimer *timer;
    TQSocketNotifier *sn;
 
    uchar buffer[1024];
    int bufpos;
 
    int xstate;
    bool xcrc;
    uchar xblock;
    int xsize;
 
        KandyPrefs *prefs;
 
signals:
    void gotLine(const char *);
    void gotXBlock(const uchar *, int);
    void xmodemDone(bool);
    void timeout();
 
    void errorMessage( const TQString & );
};
 
 
#endif // MODEM_H