// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// Contents :  fax s/r header file

// 

//

/**

 @file

 @internalComponent 

*/

#ifndef __FAXMDRV_H

#define __FAXMDRV_H

// class 1 T.30 frame stuff

#include "FRAMES.H"

/**

@internalComponent

*/

const TInt KDialTimeout (100);

/********************************************************************/

// now the CFaxModemDriver abstract class

class CFaxModem;

class CFaxModemDriver : public CBase

/**

@internalComponent

*/

   {

 public:

   static CFaxModemDriver * NewLC (TFaxServerSessionSettings *,RFax::TProgress& aProgress);

   static CFaxModemDriver * NewL (TFaxServerSessionSettings *,RFax::TProgress& aProgress);

   void ConstructL (TFaxServerSessionSettings *,RFax::TProgress& aProgress);

    CFaxModemDriver ();

   ~CFaxModemDriver ();

   void GetFaxDataL (TDes8 *);

   TInt GetLineL (TUint8 *);

   virtual TInt RxConnectL () = 0;

   virtual TInt RxPrePageL () = 0;

   virtual TInt RxPostPageL () = 0;

   TInt SendFaxDataL (const TDesC8 *);

   virtual TInt TxConnectL () = 0;

   virtual TInt TxPrePageL () = 0;

   virtual TInt TxPostPageL () = 0;

   inline void SetSharedFileHandles(CFaxSharedFileHandles* aSharedHandles) 

	   {

	   iSharedHandles = aSharedHandles;

	   }

 protected:

   inline TUint8 Invert (TUint8);

   void DialFaxOnDemandL ();

   void WriteFaxStoreL (TInt);

   TInt RxStartPageL();

   TInt TxStartPageL();

   void SendFaxHeaderL ();

   void padLineL (TInt);

   TInt CheckCadenceExportL(const TDesC8 &);

 public:

   CFaxModem * iModem;

   TFaxServerSessionSettings * iFaxServerSessionSettings;

   TInt iRepeatPage;

   TTimeIntervalMicroSeconds iCadence;

   TTime iTimeOfLastRing;

 protected:

   TInt iActualFaxSpeed;

   TInt iMinscan;

   TInt iMinlinelength;        // worked out from iMinscan and iActualFaxSpeed

   TBuf8 < 128 > iResults;

   CFaxSharedFileHandles* iSharedHandles;

   };

/********************************************************************/

// Here we have the derived classes for various types of fax modems

// class one is the only complicated one

/********************************************************************/

class CFaxClass1 : public CFaxModemDriver

/**

@internalComponent

*/

   {

 public:

   static CFaxModemDriver * NewL (TFaxServerSessionSettings *,RFax::TProgress& aProgress);

   static CFaxModemDriver * NewLC (TFaxServerSessionSettings *,RFax::TProgress& aProgress);

   TInt RxConnectL ();

   TInt RxPrePageL ();

   TInt RxPostPageL ();

   TInt TxConnectL ();

   TInt TxPrePageL ();

   TInt TxPostPageL ();

 private:

   TInt RxPrePollL ();

   TInt RxSetHighSpeedL ();

   void RxDCNL ();

   TInt TxSetHighSpeedL ();

   TInt TxDCNL ();

   TInt GetframeL (TDes8 &);

   TInt SendframeL (TDes8 &);

   TInt GetFramestatL ();

   TInt FramestatL ();

   TInt FramestatL (TInt);

   void ReceiveSilenceL ();

   TInt SendCRPL ();

   inline void AnalyseDISL ();

   union faxparms iDisFrame;

   union faxparms iDcsFrame;

   union faxparms iDtcFrame;

   TInt iDcsBytes ;

   TInt iDisBytes ;

   TInt iFcfXbit ;             // the fcf X bit, see T.30/5.3.6.1

   TBuf8 < 16 > iModemString;  // HDLC post-frame modem status

   TBuf8 < 36 > iOldFrame;     // last frame resend for class 1

   TBuf8 < 36 > iFrame;        // current frame data space

   };

/********************************************************************/

class CFaxClass2 : public CFaxModemDriver

/**

@internalComponent

*/

   {

 public:

   static CFaxModemDriver * NewL (TFaxServerSessionSettings *,RFax::TProgress& aProgress);

   static CFaxModemDriver * NewLC (TFaxServerSessionSettings *,RFax::TProgress& aProgress);

   TInt RxConnectL ();

   TInt RxPrePageL ();

   TInt RxPostPageL ();

   TInt TxConnectL ();

   TInt TxPrePageL ();

   TInt TxPostPageL ();

 protected:

   void ParseResults (TDesC8 &) ;

   void ExtractAnswerback (TDesC8 &);

   void AnalyseFHNG(void);

   };

/********************************************************************/

class CFaxClass20 : public CFaxClass2

/**

@internalComponent

*/

   {

 public:

   static CFaxModemDriver * NewL (TFaxServerSessionSettings *,RFax::TProgress& aProgress);

   static CFaxModemDriver * NewLC (TFaxServerSessionSettings *,RFax::TProgress& aProgress);

   TInt RxConnectL ();

   TInt RxPrePageL ();

   TInt RxPostPageL ();

   TInt TxConnectL ();

   TInt TxPrePageL ();

   TInt TxPostPageL ();

   };

/********************************************************************/

#include "FAXMDRV.INL"

#endif