--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32test/usbho/t_usbdi/src/endpointreader.cpp	Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,286 @@
+// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "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:
+// @file endpointreader.cpp
+// @internalComponent
+// 
+//
+
+#include "endpointreader.h"
+#include "controltransferrequests.h"
+#include "testdebug.h"
+
+namespace NUnitTesting_USBDI
+	{
+const TUint8 KNumPatternRepeatsNeededForValidation = 4;
+
+CEndpointReader::CEndpointReader(RDevUsbcClient& aClientDriver,TEndpointNumber aEndpoint)
+:	CActive(EPriorityStandard),
+	iClientDriver(aClientDriver),
+	iEndpoint(aEndpoint),
+	iDataPtr(NULL,0),
+	iValidationPatternPtr(NULL,0)
+	{
+	CActiveScheduler::Add(this);
+	}
+	
+CEndpointReader::~CEndpointReader()
+	{
+	LOG_FUNC
+	Cancel();
+	delete iDataBuffer;
+	iDataBuffer = NULL;
+	delete iValidationPatternBuffer;
+	iValidationPatternBuffer = NULL;
+	}
+			
+TPtr8 CEndpointReader::Buffer()
+	{
+	return iDataPtr;
+	}
+
+TBool CEndpointReader::IsValid()
+	{
+	return iIsValid;
+	}
+
+TUint CEndpointReader::NumBytesReadSoFar()
+	{
+	return iNumBytesReadSoFar;
+	}
+
+void CEndpointReader::ReadPacketL(MEndpointDataHandler* aHandler)
+	{
+	LOG_FUNC
+	RDebug::Printf("Endpoint %d", iEndpoint);
+	
+	iHandler = aHandler;
+
+	// Allocate buffer for reading a data packet
+	if(iDataBuffer)
+		{
+		delete iDataBuffer;
+		iDataBuffer = NULL;
+		}
+	iDataBuffer = HBufC8::NewL(KFullSpeedPacketSize); 
+	iDataPtr.Set(iDataBuffer->Des());
+
+	// Read from the endpoint
+	// Read from the endpoint
+	iClientDriver.ReadPacket(iStatus,iEndpoint,iDataPtr,KFullSpeedPacketSize);
+	SetActive();
+	}
+
+
+void CEndpointReader::ReadL(TInt aByteCount)
+	{
+	LOG_FUNC
+	RDebug::Printf("Endpoint %d", iEndpoint);
+	
+	// Allocate buffer for reading a data packet
+	if(iDataBuffer)
+		{
+		delete iDataBuffer;
+		iDataBuffer = NULL;
+		}
+	iDataBuffer = HBufC8::NewL(aByteCount);
+	iDataPtr.Set(iDataBuffer->Des());
+
+	// Read from the endpoint
+	iClientDriver.Read(iStatus,iEndpoint,iDataPtr,aByteCount);
+	SetActive();
+	}
+
+void CEndpointReader::ReadUntilShortL(TInt aByteCount)
+	{
+	LOG_FUNC
+	RDebug::Printf("Endpoint %d", iEndpoint);
+	
+	// Allocate buffer for reading a data packet
+	if(iDataBuffer)
+		{
+		delete iDataBuffer;
+		iDataBuffer = NULL;
+		}
+	iDataBuffer = HBufC8::NewL(aByteCount);
+	iDataPtr.Set(iDataBuffer->Des());
+
+	// Read from the endpoint
+	iClientDriver.ReadUntilShort(iStatus,iEndpoint,iDataPtr,aByteCount);
+	SetActive();
+	}
+
+void CEndpointReader::ReadAndHaltL(TInt aByteCount)
+	{
+	LOG_FUNC
+	iCompletionAction = EHaltEndpoint;
+	ReadL(aByteCount);
+	}
+
+void CEndpointReader::RepeatedReadAndValidateL(const TDesC8& aDataPattern, TUint aNumBytesPerRead, TUint aTotalNumBytes)
+	{
+	LOG_FUNC
+
+	iCompletionAction = ERepeatedRead;
+	iRepeatedReadTotalNumBytes = aTotalNumBytes;
+	iRepeatedReadNumBytesPerRead = aNumBytesPerRead;
+	iNumBytesReadSoFar = 0;
+	iDataPatternLength = aDataPattern.Length();
+	iIsValid = ETrue; //until proven guilty!
+	RDebug::Printf("Total Bytes To Read: %d, Bytes Per Individual Read: %d", iRepeatedReadTotalNumBytes, iRepeatedReadNumBytesPerRead);
+	//Create buffer to contain two lots of the payload pattern
+	//..so that we may grab cyclic chunks of said payload pattern
+	delete iValidationPatternBuffer;
+	iValidationPatternBuffer = NULL;
+	iValidationPatternBuffer = HBufC8::New(KNumPatternRepeatsNeededForValidation*aDataPattern.Length()); 
+	iValidationPatternPtr.Set(iValidationPatternBuffer->Des());
+	iValidationPatternPtr.Zero();
+	for(TUint i=0;i<KNumPatternRepeatsNeededForValidation;i++)
+		{
+		iValidationPatternPtr.Append(aDataPattern);
+		}
+
+	ReadUntilShortL(iRepeatedReadNumBytesPerRead);
+	}
+
+
+TInt CEndpointReader::Acknowledge()
+	{
+	LOG_FUNC
+	TInt err(iClientDriver.SendEp0StatusPacket());
+	if(err != KErrNone)
+		{
+		RDebug::Printf("<Error %d> Sending acknowledge packet",err);
+		}
+	return err;
+	}
+			
+			
+void CEndpointReader::DoCancel()
+	{
+	LOG_FUNC
+	
+	// Cancel reading from the endpoint
+	
+	iClientDriver.ReadCancel(iEndpoint);
+	}
+	
+	
+void CEndpointReader::RunL()
+	{
+	LOG_FUNC
+	RDebug::Printf("Endpoint %d", iEndpoint);
+	RDebug::Printf("Completion Action %d", iCompletionAction);
+	TCompletionAction completionAction = iCompletionAction;
+	iCompletionAction = ENone; //reset here in case of 'early' returns
+	
+	// The operation completion code
+	TInt completionCode(iStatus.Int());
+	
+	if(completionCode != KErrNone)
+		{
+		RDebug::Printf("<Error> void CEndpointReader::RunL()completed with ERROR %d", completionCode);
+		
+		// Nak the packet received
+		iClientDriver.HaltEndpoint(iEndpoint);
+		
+		if(iHandler)
+			{
+			iHandler->EndpointReadError(iEndpoint,completionCode);
+			}
+		else
+			{
+			RDebug::Printf("No handler set");
+			}
+		}
+	else
+		{
+		// Some data has arrived but 
+		TInt ent = iDataBuffer->Length()/16;
+		ent = ent==0?1:ent;
+		for(TInt i=0; i<iDataBuffer->Length(); i+=ent)
+			{
+			RDebug::Printf("byte %d %02x %c",i,(*iDataBuffer)[i],(*iDataBuffer)[i]);
+			}
+
+		if(iHandler)
+			{
+			iHandler->DataReceivedFromEndpointL(iEndpoint,*iDataBuffer);
+			}
+		else
+			{
+			RDebug::Printf("No handler set");
+			}
+		
+		if(completionAction==EHaltEndpoint)
+			{
+			RDebug::Printf("Halting Endpoint");
+			iClientDriver.HaltEndpoint(iEndpoint);
+			}
+
+		if(completionAction==ERepeatedRead)
+			{
+			RDebug::Printf("Repeated Read");
+			iCompletionAction = ERepeatedRead;
+			
+			//Prepare to validate
+			TInt previousBytesToRead = iRepeatedReadTotalNumBytes - iNumBytesReadSoFar; //PRIOR TO THIS READ
+			TUint expectedNumJustReadBytes = previousBytesToRead < iRepeatedReadNumBytesPerRead ? previousBytesToRead : iRepeatedReadNumBytesPerRead;
+			TPtrC8 valDesc = iValidationPatternPtr.Mid(iNumBytesReadSoFar%iDataPatternLength, expectedNumJustReadBytes);
+			TInt err = iDataPtr.Compare(valDesc);
+
+			iNumBytesReadSoFar += iDataPtr.Length();
+			RDebug::Printf("Bytes read so far %d, Total bytes to read %d", iNumBytesReadSoFar, iRepeatedReadTotalNumBytes);
+
+			if(err!=0)
+				{
+				RDebug::Printf("Validation Result %d, Validation String Length %d, Bytes Actually Read %d", err, valDesc.Length(), iDataPtr.Length());
+				RDebug::Printf("Expected string, followed by read string");
+				RDebug::RawPrint(valDesc);
+				RDebug::Printf("\n");
+				RDebug::RawPrint(iDataPtr);
+				RDebug::Printf("\n");
+				iIsValid = EFalse; //record validation error
+				}
+			
+			if(iNumBytesReadSoFar < iRepeatedReadTotalNumBytes)
+				{
+				ReadUntilShortL(iRepeatedReadNumBytesPerRead);
+				}
+			else
+				{
+				//reset
+				iRepeatedReadTotalNumBytes = 0;
+				iRepeatedReadNumBytesPerRead = 0;
+				iNumBytesReadSoFar = 0;
+				iDataPatternLength = 0;
+				//do not reset iIsValid - this is required later
+				}
+			}
+		}
+	}
+
+TInt CEndpointReader::RunError(TInt aError)
+	{
+	LOG_FUNC
+	
+	RDebug::Printf("<Leaving Error> void CEndpointReader::RunError()called with ERROR %d", aError);
+
+	// Nak the packet received
+	iClientDriver.HaltEndpoint(iEndpoint);
+
+	aError = KErrNone;	
+	return aError;
+	}
+	
+	}