--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/telephonyserverplugins/simtsy/src/CSimSerComm.cpp	Tue Feb 02 01:41:59 2010 +0200
@@ -0,0 +1,316 @@
+// Copyright (c) 2001-2009 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:
+// Implementation of the Comms reader and writer mixin class.
+// 
+//
+
+/**
+ @file
+*/
+
+#include "CSimSerComm.h"
+#include "CSimPhone.h"
+#include "Simlog.h"
+
+MComm::MComm()
+/**
+ * Trivial constructor.
+ */
+	{
+	iCommReader = NULL;
+	iCommWriter = NULL;
+	}
+
+MComm::~MComm()
+/**
+ * Destructor.  Destroy the heap-based objects and close the serial ports.
+ */
+	{
+    delete iCommReader;
+	delete iCommWriter;
+	iCommPort.Close();
+	iCommServer.Close();
+	}
+
+void MComm::CommConstructL(TInt aReadPriority, TInt aWritePriority)
+/**
+ * Second phase constructor for this class.  This function creates the reader and writer
+ * objects.
+ * @param aReadPriority		The active scheduler priority associated with the reader class.
+ * @param aWritePriority	The active scheduler priority associated with the writer class.
+ */
+	{
+	iCommReader = new (ELeave) CCommReader(this, aReadPriority);
+	iCommWriter = new (ELeave) CCommWriter(this, aWritePriority);
+	};
+
+TInt MComm::CommOpen(const TDesC& aDll, const TDesC& aName, TCommAccess aMode)
+/**
+ * Connect to the C32 Server, load the CSY module and open the port ready for
+ * reading and writing.  If a "shared" open is requested, the function will
+ * briefly attempt to exclusively open the comm port to ensure that no-one
+ * is currently on the port.  This client will allow others to share the port
+ * but it wants to remain in control.
+ *
+ * @param aDll		The CSY module name.
+ * @param aName		The serial port name.
+ * @param aMode		The required access mode: shared, exclusive, etc...
+ * @return TInt		Standard error value.
+ */
+	{
+	TInt err;
+	if (err = iCommServer.Connect(), err!=KErrNone)
+		return err;
+	if (aDll.Length()>0)
+		{
+		if (err = iCommServer.LoadCommModule(aDll), err!=KErrNone)
+			{
+			iCommServer.Close();
+			return err;
+			}
+		}
+	if (err = iCommPort.Open(iCommServer, aName, ECommExclusive), err!=KErrNone)
+		// if any other TSY (or other app) is using comm port, we want to return gracefully
+		// with error
+		{
+		iCommServer.Close();
+		return err;
+		}
+	if (aMode==ECommShared)
+		{
+		iCommPort.Close();
+		if (err = iCommPort.Open(iCommServer, aName, aMode), err!=KErrNone)
+			{
+			iCommServer.Close();
+			return err;
+			}
+		}
+	return KErrNone;
+	}
+
+TInt MComm::CommOpen(const TDesC& aName, TCommAccess aMode)
+/**
+ * Connect to the C32 Server and open the port ready for
+ * reading and writing.  If a "shared" open is requested, the function will
+ * briefly attempt to exclusively open the comm port to ensure that no-one
+ * is currently on the port.  This client will allow others to share the port
+ * but it wants to remain in control.
+ *
+ * @param aName		The serial port name.
+ * @param aMode		The required access mode: shared, exclusive, etc...
+ * @return TInt		Standard error value.
+ */
+	{
+	LOGDATA1("Attempting to Open Serial Port");
+	TInt err;
+	if (err = iCommServer.Connect(), err!=KErrNone)
+		return err;
+	if (err = iCommPort.Open(iCommServer, aName, ECommExclusive), err!=KErrNone)
+		// if any other TSY (or other app) is using comm port, we want to return gracefully
+		// with error
+		{
+		iCommServer.Close();
+		return err;
+		}
+	if (aMode==ECommShared)
+		{
+		iCommPort.Close();
+		if (err = iCommPort.Open(iCommServer, aName, aMode), err!=KErrNone)
+			{
+			iCommServer.Close();
+			return err;
+			}
+		}
+	LOGDATA1("Sucessfully Opened Serial Port");
+	return KErrNone;
+	}
+
+void MComm::CommClose()
+/**
+ * Cancel any outstanding requests and close all port handles.
+ */
+	{
+ 	if (iCommReader != NULL)
+ 		iCommReader->Cancel();
+ 	
+ 	if (iCommWriter != NULL)
+ 		iCommWriter->Cancel();
+	iCommPort.Close();
+	iCommServer.Close();
+	}
+
+void MComm::CommWrite(const TDesC8& aDes)
+/**
+ * Asynchronously start to write the contents of a descriptor to the opened serial port.
+ * When the write completes, the callback function CommWriteComplete will be called.
+ * @param aDes		Descriptor whose contents will be written to the port.
+ */
+	{
+	__ASSERT_ALWAYS(iCommWriter!=NULL, SimPanic(ECommWriterNotConstructed));
+	iCommPort.Write(iCommWriter->StatusRef(), aDes);
+	iCommWriter->Activate();
+	}
+
+void MComm::CommWriteReady()
+/**
+ * This function sychronously primes the serial port for writing.  The function will not
+ * complete until the serial port is powered up and the handshaking lines are
+ * set to allow write operations.
+ */
+	{
+	__ASSERT_ALWAYS(iCommWriter!=NULL, SimPanic(ECommWriterNotConstructed));
+	TRequestStatus aStatus;
+	iCommPort.Write(aStatus, TPtrC8(NULL, 0));
+	User::WaitForRequest(aStatus);
+	}
+
+void MComm::CommRead(TDes8& aDes)
+/**
+ * Asynchronously to read data from the opened serial port.
+ * When the passed buffer is full, the read will complete, calling the CommReadComplete callback function.
+ * @param aDes		Read buffer descriptor.
+ */
+	{
+	__ASSERT_ALWAYS(iCommReader!=NULL, SimPanic(ECommReaderNotConstructed));
+	iCommPort.Read(iCommReader->StatusRef(), aDes, aDes.Length());
+	iCommReader->Activate();
+	}
+
+void MComm::CommReadOneOrMore(TDes8& aDes)
+/**
+ * Asynchronously to read data from the opened serial port.
+ * As soon as a single or multiple octets have been read, the read will complete,
+ * calling the CommReadComplete callback function.
+ * @param aDes		Read buffer descriptor.
+ */
+	{
+	__ASSERT_ALWAYS(iCommReader!=NULL, SimPanic(ECommReaderNotConstructed));
+	iCommPort.ReadOneOrMore(iCommReader->StatusRef(), aDes);
+	iCommReader->Activate();
+	}
+
+void MComm::CommReadReady()
+/**
+ * This function sychronously primes the serial port for reading.  The function will not
+ * complete until the serial port is powered up.
+ */
+	{
+	__ASSERT_ALWAYS(iCommReader!=NULL, SimPanic(ECommReaderNotConstructed));
+	TRequestStatus aStatus;
+	iCommPort.Read(aStatus,iBuf,0);
+	User::WaitForRequest(aStatus);
+	}
+
+void MComm::CommCancel()
+/**
+ * Cancel any outstanding read or write requests.
+ */
+	{
+	if (iCommWriter)
+		iCommWriter->Cancel();
+	if (iCommReader)
+		iCommReader->Cancel();
+	}
+
+void MComm::CommWriteCancel()
+/**
+ * Cancel an outstanding write request.
+ */
+	{
+	if (iCommWriter)
+		iCommWriter->Cancel();
+	}
+
+void MComm::CommReadCancel()
+/**
+ * Cancel an outstanding read request.
+ */
+	{
+	if (iCommReader)
+		iCommReader->Cancel();
+	}
+
+//
+// CCommWriter
+//
+CCommWriter::CCommWriter(MComm* aComm, TInt aPriority)
+	: CActive(aPriority), iComm(aComm)
+/**
+ * Constructor for asynchronous writer class.
+ */
+	{
+	__DECLARE_NAME(_S("CCommWriter"));
+	CActiveScheduler::Add(this);
+	}
+
+CCommWriter::~CCommWriter()
+/**
+ * Destructor for writer class.
+ */
+	{
+	Cancel();
+	}
+
+void CCommWriter::RunL()
+/**
+ * Active Scheduler callback function, indicating a write completion.
+ */
+	{
+	iComm->CommWriteComplete(iStatus.Int());
+	}
+
+void CCommWriter::DoCancel()
+/**
+ * Cancel an outstanding write operation.
+ */
+	{
+	iComm->iCommPort.WriteCancel();
+	}
+
+//
+// CCommReader
+//
+CCommReader::CCommReader(MComm* aComm, TInt aPriority)
+	: CActive(aPriority), iComm(aComm)
+/**
+ * Constructor for asynchronous reader class.
+ */
+	{
+	__DECLARE_NAME(_S("CCommReader"));
+	CActiveScheduler::Add(this);
+	}
+
+CCommReader::~CCommReader()
+/**
+ * Destructor for reader class.
+ */
+	{
+	Cancel();
+	}
+
+void CCommReader::RunL()
+/**
+ * Active Scheduler callback function, indicating a read completion.
+ */
+	{
+	iComm->CommReadComplete(iStatus.Int());
+	}
+
+void CCommReader::DoCancel()
+/**
+ * Cancel an outstanding write operation.
+ */
+	{
+	iComm->iCommPort.ReadCancel();
+	}