--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fax/faxclientandserver/FAXSVR/CFAX20.CPP	Tue Feb 02 01:41:59 2010 +0200
@@ -0,0 +1,520 @@
+// 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:
+//
+
+#include "FAXSERV.H"
+#include "fax_reversebytes.h"
+#include "FAXMODEM.H"
+#include "FAXMDRV.H"
+
+#include "FAXLOG.H"
+
+const TInt KClass20HangupStatusTimer=20;	// < Time used to wait for final +FHS: report.  Was 5s, but typical GSM delays range between 4s and 10s.
+
+// this module has two parts
+// first receive routines rx
+// second transmit routines tx
+
+/********************************************************************/
+
+CFaxModemDriver* CFaxClass20::NewLC(TFaxServerSessionSettings * aFaxServerSessionSettings, RFax::TProgress & aProgress)
+	{
+	CFaxModemDriver* self = new(ELeave) CFaxClass20;
+	CleanupStack::PushL(self);
+	self->ConstructL(aFaxServerSessionSettings, aProgress);
+	return self;
+	}
+
+CFaxModemDriver* CFaxClass20::NewL(TFaxServerSessionSettings * aFaxServerSessionSettings, RFax::TProgress & aProgress)
+	{
+	CFaxModemDriver* self = NewLC(aFaxServerSessionSettings, aProgress);
+	CleanupStack::Pop();
+	return self;
+	}
+/********************************************************************/
+
+TInt CFaxClass20::RxConnectL()
+	{
+	__FLOG_FAXSRV( _L8("CFaxClass20::RxConnectL entering"));
+
+	CheckCadenceExportL (_L8 ("AT+FNR=1,1,1,0\r"));
+	if ((iModem->GetMatchL (_L8 ("OK"), 5)) == 0)
+		return (KFaxErrModemNotWorking);
+
+	CheckCadenceExportL(_L8("AT+FCC=?\r"));
+	if (!(iModem->ImportL (iResults, 35)))
+		return (KFaxErrModemNotWorking);
+
+	iModem->iOurMessage.Format (_L8 ("%S"), &iResults);
+	iModem->ProgressUpdateL ();
+	ParseResults (iResults);
+
+	iModem->GetMatchL (_L8 ("OK"), 2);
+
+	if (iFaxServerSessionSettings->iRxResolution == EFaxNormal)
+		iModem->iProgress.iResolution = EFaxNormal;
+	else
+		iModem->iProgress.iResolution = EFaxFine;
+
+	if (iFaxServerSessionSettings->iRxCompression == EModifiedRead)
+		iModem->iProgress.iCompression = EModifiedRead;
+	else
+		iModem->iProgress.iCompression = EModifiedHuffman;
+
+	iActualFaxSpeed = iModem->iProgress.iSpeed;
+	if (iActualFaxSpeed > iFaxServerSessionSettings->iMaxSpeed)
+		iActualFaxSpeed = iFaxServerSessionSettings->iMaxSpeed;
+
+	if (iFaxServerSessionSettings->iPreferredECM == 0)
+		iModem->iProgress.iECM = 0;
+
+	iResults.Copy(_L8("AT+FCC=0,0,0,2,0,0,0,0\r"));
+
+	iResults[7] = (TUint8) (iResults[7] + iModem->iProgress.iResolution);
+	iResults[9] = (TUint8) (((iActualFaxSpeed / 2400) - 1) + '0');
+	iResults[15] = (TUint8) (iResults[15] + iModem->iProgress.iCompression);
+	iResults[17] = (TUint8) (iModem->iProgress.iECM + '0');
+	CheckCadenceExportL(iResults);
+	if ((iModem->GetMatchL(_L8("OK"), 3)) == 0)
+		{
+		return (KFaxErrModemNotWorking);
+		}
+	CheckCadenceExportL(_L8 ("AT+FAA=0\r"));
+	if ((iModem->GetMatchL(_L8("OK"), 5)) == 0)
+		{
+		return (KFaxErrNoReceiveMode);
+		}
+
+	TBuf8<RCall::KFaxIdUserNameMaxSize> narrowBuf;
+	narrowBuf.Copy(iFaxServerSessionSettings->iFaxId);	 // convert from unicode to narrow
+	
+	//-- By Dmitry Lyokhin. concerns PIA-58ELQK defect.
+	if( narrowBuf.Length() < 1 )
+		{
+		narrowBuf.Append(' ');
+		}
+
+	if (iFaxServerSessionSettings->iMode & KFaxPoll)
+		{
+		iModem->ExportL(_L8 ("AT+FSP=1\r"));
+		if ((iModem->GetMatchL(_L8("OK"), 5)) == 0)
+			{
+			return (KFaxPollingUnsupported);
+			}
+		iModem->ExportL(_L8("AT+FPI=\""));
+		iModem->ExportL(narrowBuf);
+		iModem->ExportL(_L8 ("\"\r"));
+		if ((iModem->GetMatchL(_L8("OK"), 3)) == 0)
+			{
+			return (KFaxPollingUnsupported);
+			}
+		}
+	else
+		{
+		CheckCadenceExportL(_L8("AT+FCR=1\r"));
+		if ((iModem->GetMatchL(_L8("OK"), 5)) == 0)
+			{
+			return (KFaxErrNoReceiveMode);
+			}
+		CheckCadenceExportL(_L8("AT+FLI=\""));
+		iModem->ExportL(narrowBuf);
+		iModem->ExportL(_L8("\"\r"));
+		if ((iModem->GetMatchL(_L8("OK"), 3)) == 0)
+			{
+			return (KFaxErrModemNotWorking);
+			}
+		}
+
+	if (iFaxServerSessionSettings->iMode & KFaxWaitForRing)
+		{
+//		while ((iModem->GetMatchL(_L8("RING"), 3)) == 0);
+//		iTimeOfLastRing.UniversalTime();
+		}
+	else
+		{
+		if ((iFaxServerSessionSettings->iMode & KFaxOffHook) == 0)
+			{
+			DialFaxOnDemandL();
+			}
+		}
+
+	if ((iFaxServerSessionSettings->iMode & KFaxPoll) == 0)
+		{
+		CheckCadenceExportL(_L8("ATA\r"));
+		}
+
+	iModem->iProgress.iPhase = ECallEstablishment;
+
+	TInt pollDocsAvailable = 0;
+
+	for (;;)
+		{
+		if(!(iModem->ImportL(iResults, 35)))
+			{
+			return KFaxErrCannotAnswer;
+			}
+
+		iModem->iOurMessage.Format(_L8("%S"), &iResults);
+		iModem->ProgressUpdateL();
+
+		if ((iResults.FindF(_L8("NO DIALTONE"))) >= 0 ||
+			iResults.FindF(_L8("NO DIAL TONE")) >= 0)
+			return (KFaxErrNoDialTone);
+		if ((iResults.FindF(_L8("BUSY"))) >= 0)
+			return (KFaxErrBusy);
+		if ((iResults.FindF(_L8("NO ANSWER"))) >= 0)
+			return (KFaxErrNoAnswer);
+		if ((iResults.FindF(_L8("NO CARRIER"))) >= 0)
+			return (KFaxErrNoCarrier);
+		if ((iResults.FindF(_L8("OK"))) >= 0)
+			break;
+		if ((iResults.FindF(_L8("FHS"))) >= 0)
+			return (KFaxErrPrematureHangup);
+		if ((iResults.FindF(_L8("FCO"))) >= 0)
+			iModem->iProgress.iPhase = ESessionNegotiation;
+		else if ((iResults.FindF(_L8("FPO"))) >= 0)
+			pollDocsAvailable = 1;
+		else if ((iResults.FindF(_L8("FTI"))) >= 0)
+			ExtractAnswerback(iResults);
+		else if ((iResults.FindF(_L8("FCS"))) >= 0)
+			ParseResults(iResults);
+		}
+
+	if ((iFaxServerSessionSettings->iMode & KFaxPoll) && (pollDocsAvailable == 0))
+		return (KFaxNothingToPoll);
+
+	iModem->iOurMessage.Format(_L8 ("about to receive fax"));
+	iModem->ProgressUpdateL();
+	return RxPrePageL();
+	}
+
+/********************************************************************/
+TInt CFaxClass20::RxPrePageL()
+	{
+	__FLOG_FAXSRV( _L8("CFaxClass20::RxPrePageL entering"));
+
+	iModem->ExportL(_L8 ("AT+FDR\r"));
+	for (;;)
+		{
+		if (!(iModem->ImportL (iResults, 35)))
+			return (KFaxErrCannotConnect);
+
+		iModem->iOurMessage.Format (_L8 ("%S"), &iResults);
+		iModem->ProgressUpdateL ();
+
+		if ((iResults.FindF (_L8 ("ERROR"))) >= 0)
+			return (KFaxErrNoReceiveMode);
+		if ((iResults.FindF (_L8 ("FHS"))) >= 0)
+			return (KFaxErrPrematureHangup);
+		if ((iResults.FindF (_L8 ("CONNECT"))) >= 0)
+			break;
+		if ((iResults.FindF (_L8 ("FCS"))) >= 0)
+			ParseResults (iResults);
+		}
+
+	iModem->TxcharL (Kdc2);
+	return (RxStartPageL ());
+}
+/********************************************************************/
+TInt CFaxClass20::RxPostPageL ()
+{
+    __FLOG_FAXSRV( _L8("CFaxClass20::RxPostPageL entering"));
+
+	iModem->iProgress.iPhase = EPostPageStatus;
+	iModem->ProgressUpdateL ();
+	for (;;)
+		{
+		if (iModem->iProgress.iECM == 0)
+			{
+			if (!(iModem->ImportL (iResults, 20)))
+				return (KFaxErrModemResponse);
+			}
+        else
+            {
+            // coverity[check_return]
+            iModem->ImportL (iResults, 0x7fff);     // no timeout if ECM enabled
+            }
+
+		iModem->iOurMessage.Format (_L8 ("%S"), &iResults);
+		iModem->ProgressUpdateL ();
+
+		if ((iResults.FindF (_L8 ("OK"))) >= 0)
+			return (KFaxErrPrematureOK);
+		if ((iResults.FindF (_L8 ("FHS"))) >= 0)
+			return (KFaxErrPrematureHangup);
+		if ((iResults.FindF (_L8 ("FET"))) >= 0)
+			break;
+		}
+	if (iModem->GetMatchL (_L8 ("OK"), 5) == 0)
+		return (KFaxErrNoFinalOK);
+
+	if ((iResults.FindF (_L8 ("0"))) >= 0)
+		{
+		iModem->iOurMessage.Format (_L8 ("page %u successfully received"), iModem->iProgress.iPage);
+		iModem->ProgressUpdateL ();
+		return (RxPrePageL ());
+		}
+	if ((iResults.FindF (_L8 ("1"))) >= 0)
+		{
+		iModem->iOurMessage.Format (_L8 ("page %u successfully received : end of document"), iModem->iProgress.iPage);
+		iModem->ProgressUpdateL ();
+		iModem->iOurMessage.Format (_L8 ("Next fax awaited"));
+		iModem->ProgressUpdateL ();
+		return (RxPrePageL ());
+		}
+	if ((iResults.FindF (_L8 ("2"))) >= 0)
+		{
+		iModem->iOurMessage.Format (_L8 ("Final page %u successfully received"), iModem->iProgress.iPage);
+		iModem->ProgressUpdateL ();
+		iModem->iProgress.iPhase = EDisconnection;
+		iModem->ExportL (_L8 ("AT+FDR\r"));
+		if (iModem->GetMatchL (_L8 ("FHS"), KClass20HangupStatusTimer) == 0)
+			return (KFaxErrNoHangup);
+		if (iModem->GetMatchL (_L8 ("OK"), 5) == 0)
+			return (KFaxErrNoFinalOK);
+		return (KErrNone);
+		}
+	return (KFaxErrUnknownPageCode);
+}
+/********************************************************************/
+
+TInt CFaxClass20::TxConnectL ()
+{
+    __FLOG_FAXSRV( _L8("CFaxClass20::TxConnectL entering"));
+
+	iModem->ExportL (_L8 ("AT+FNR=1,1,1,0\r"));
+	if ((iModem->GetMatchL (_L8 ("OK"), 5)) == 0)
+		return (KFaxErrModemNotWorking);
+	TBuf8<RCall::KFaxIdUserNameMaxSize> narrowBuf;
+	narrowBuf.Copy(iFaxServerSessionSettings->iFaxId);	 // convert from unicode to narrow
+	
+	//-- By Dmitry Lyokhin. concerns PIA-58ELQK defect.
+	if( narrowBuf.Length() < 1 ) narrowBuf.Append(' ');
+
+	
+	iModem->ExportL (_L8 ("AT+FLI=\""));
+	iModem->ExportL (narrowBuf);
+	iModem->ExportL (_L8 ("\"\r"));
+	if ((iModem->GetMatchL (_L8 ("OK"), 3)) == 0)
+		return (KFaxErrModemNotWorking);
+
+	iModem->ExportL (_L8 ("AT+FCC=?\r"));
+	if (!(iModem->ImportL (iResults, 35)))
+		return (KFaxErrModemNotWorking);
+
+	iModem->iOurMessage.Format (_L8 ("%S"), &iResults);
+	iModem->ProgressUpdateL ();
+	ParseResults (iResults);
+
+	iModem->GetMatchL (_L8 ("OK"), 2);
+
+	iActualFaxSpeed = iModem->iProgress.iSpeed;
+	if (iActualFaxSpeed > iFaxServerSessionSettings->iMaxSpeed)
+		iActualFaxSpeed = iFaxServerSessionSettings->iMaxSpeed;
+
+	if (iFaxServerSessionSettings->iPreferredECM == 0)
+		iModem->iProgress.iECM = 0;
+
+	iResults.Copy (_L8 ("AT+FCC=0,0,0,2,0,0,0,0\r"));
+
+	iResults[7] = (TUint8) (iResults[7] + iFaxServerSessionSettings->iTxResolution);
+	iResults[9] = (TUint8) (((iActualFaxSpeed / 2400) - 1) + '0');
+
+	
+	// added to support 2Dfaxing using class 2.0
+	if (iModem->iProgress.iCompression)
+		iResults[15] = (TUint8) (iResults[15] + iFaxServerSessionSettings->iTxCompression);
+	else
+		iResults[15] = (TUint8) (iResults[15] + EModifiedHuffman);
+	
+	//iResults[15] = (TUint8) (iResults[15] + iFaxServerSessionSettings->iTxCompression);
+	
+		
+	iResults[17] = (TUint8) (iModem->iProgress.iECM + '0');
+	iModem->ExportL (iResults);
+	if ((iModem->GetMatchL (_L8 ("OK"), 3)) == 0)
+		return (KFaxErrModemNotWorking);
+
+	iModem->ExportL (_L8 ("ATD"));
+	if ((iFaxServerSessionSettings->iMode & KFaxOffHook) == 0)
+		iModem->ExportL (iFaxServerSessionSettings->iPhoneNumber);
+	iModem->TxcharL (Kreturn);
+
+	iModem->iProgress.iPhase = ECallEstablishment;
+	for (;;)
+		{
+		if (!(iModem->ImportL (iResults, KDialTimeout)))
+			return (KFaxErrNoDial);
+
+		iModem->iOurMessage.Format (_L8 ("%S"), &iResults);
+		iModem->ProgressUpdateL ();
+
+		if ((iResults.FindF (_L8 ("NO DIALTONE"))) >= 0 ||
+			iResults.FindF (_L8 ("NO DIAL TONE")) >= 0)
+			return (KFaxErrNoDialTone);
+		if ((iResults.FindF (_L8 ("BUSY"))) >= 0)
+			return (KFaxErrBusy);
+		if ((iResults.FindF (_L8 ("NO ANSWER"))) >= 0)
+			return (KFaxErrNoAnswer);
+		if ((iResults.FindF (_L8 ("NO CARRIER"))) >= 0)
+			return (KFaxErrNoCarrier);
+		if ((iResults.FindF (_L8 ("FHS"))) >= 0)
+			return (KFaxErrNoNegotiate);
+		if ((iResults.FindF (_L8 ("OK"))) >= 0)
+			break;
+		if ((iResults.FindF (_L8 ("FCO"))) >= 0)
+			iModem->iProgress.iPhase = ESessionNegotiation;
+		else if ((iResults.FindF (_L8 ("FCI"))) >= 0)
+			ExtractAnswerback (iResults);
+		}
+	return (TxPrePageL ());
+}
+/********************************************************************/
+TInt CFaxClass20::TxPrePageL ()
+{
+    __FLOG_FAXSRV(_L8("CFaxClass20::TxPrePageL entering"));
+
+	iModem->ExportL (_L8 ("AT+FDT\r"));
+	for (;;)
+		{
+		if (!(iModem->ImportL (iResults, 30)))
+			return (KFaxErrNoNegotiate);
+
+		iModem->iOurMessage.Format (_L8 ("%S"), &iResults);
+		iModem->ProgressUpdateL ();
+
+		if ((iResults.FindF (_L8 ("FHS"))) >= 0)
+			return (KFaxErrNoNegotiate);
+		if ((iResults.FindF (_L8 ("CONNECT"))) >= 0)
+			break;
+		if ((iResults.FindF (_L8 ("FCS"))) >= 0)
+			ParseResults (iResults);
+		}
+
+	for (;;)
+		{
+		TInt XonTimeoutSec = CLK_TCK * 3; 
+		
+		if ((iModem->RxcharWaitL(XonTimeoutSec)) == 0)
+			{
+			break;
+			}
+
+		if (iModem->iReadone[0] == Kxon)
+			{
+			break;
+			}
+		}
+	return (TxStartPageL());
+}
+/********************************************************************/
+
+//
+ // TxPostPageL should return either with
+ //
+ // a) an error code and iPhase set to RFax::EPostPageStatus, in which case the send returns with the error
+ // b) KErrNone and iPhase set to RFax::EDataTransfer, in which case we send the next page
+ // c) KErrNone and iPhase set to RFax::EDisconnection, in which case the send returns with KErrNone
+ //
+
+TInt CFaxClass20::TxPostPageL ()
+{
+	if (iModem->iProgress.iCompression == EModifiedRead)
+		{
+		iModem->iTransmitBuffer.Append (0x00);
+		iModem->iTransmitBuffer.Append (0x60);
+		iModem->iTransmitBuffer.Append (0x00);
+		iModem->iTransmitBuffer.Append (0x0C);
+		iModem->iTransmitBuffer.Append (0x80);
+		iModem->iTransmitBuffer.Append (0x01);
+		iModem->iTransmitBuffer.Append (0x30);
+		iModem->iTransmitBuffer.Append (0x00);
+		iModem->iTransmitBuffer.Append (0x06);
+		iModem->iTransmitBuffer.Append (0xC0);
+		}
+	else
+		{
+		for (TInt x = 3; x; x--)
+			{
+			iModem->iTransmitBuffer.Append (0x0);
+			iModem->iTransmitBuffer.Append (0x08);
+			iModem->iTransmitBuffer.Append (0x80);
+			}
+		}
+
+	iModem->iTransmitBuffer.Append (Kdle);
+	iModem->iOurMessage.Format (_L8 ("RTC transmitted after %d lines"), iModem->iProgress.iLines);
+	iModem->ProgressUpdateL ();
+	if (iFaxServerSessionSettings->iTxPages == iModem->iProgress.iPage)
+		{
+		iModem->iTransmitBuffer.Append (0x2e);
+		iModem->iOurMessage.Format (_L8 ("End of document transmitted <dle><eop>"));
+		}
+	else
+		{
+		iModem->iTransmitBuffer.Append (0x2c);
+		iModem->iOurMessage.Format (_L8 ("End of page %u transmitted <dle><mps>"), iModem->iProgress.iPage);
+		}
+    __FLOG_FAXSRV( iModem->iOurMessage);
+
+	iModem->CommitTransmitBufferL ();
+
+	iModem->iProgress.iPhase = EPostPageStatus;
+	iModem->ProgressUpdateL ();
+	while (iModem->Txstat () != 0)
+		;
+	iModem->Xonoff ();
+
+	// we've just ended phase C data, so we need to wait for the modem to respond with OK or ERROR
+
+	for (;;)
+		{
+		if (iModem->iProgress.iECM == 0)
+			{
+			if (!(iModem->ImportL (iResults, (32 * 1024) / (iModem->iProgress.iSpeed / 10))))
+				return (KFaxErrCannotEndData);
+			}
+        else
+            {
+            // coverity[check_return]
+            iModem->ImportL (iResults, 0x7fff);     // no timeout if ECM enabled, but NO CARRIER possible from some mobile phones
+            if ((iResults.FindF (_L8 ("NO CARRIER"))) >= 0)
+                return (KFaxErrCannotEndData);
+            }
+
+		iModem->iOurMessage.Format (_L8 ("%S"), &iResults);
+		iModem->ProgressUpdateL ();
+
+		if ((iResults.FindF (_L8 ("ERROR"))) >= 0)
+			break;
+		if ((iResults.FindF (_L8 ("OK"))) >= 0)
+			break;
+		}
+	if (((iResults.FindF (_L8 ("ERROR"))) >= 0) && (iRepeatPage == 0))
+		{
+		iModem->iProgress.iPhase = ESessionNegotiation;
+		iRepeatPage++;
+		iModem->iProgress.iPage--;
+		return (TxPrePageL ());
+		}
+	if (iFaxServerSessionSettings->iTxPages != iModem->iProgress.iPage)
+		{
+		iRepeatPage = 0;
+		return (TxPrePageL ());
+		}
+	iModem->iProgress.iPhase = EDisconnection;
+	return (KErrNone);
+}
+/********************************************************************/
+