diff -r 000000000000 -r 96e5fb8b040d kerneltest/e32test/usbho/t_usbdi/inc/controlendpointreader.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/kerneltest/e32test/usbho/t_usbdi/inc/controlendpointreader.h Thu Dec 17 09:24:54 2009 +0200 @@ -0,0 +1,124 @@ +#ifndef __CONTROL_ENDPOINT_READER_H +#define __CONTROL_ENDPOINT_READER_H + +/* +* 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 controlendpointreader.h +* @internalComponent +* +* +*/ + + + +#include "endpointreader.h" + +namespace NUnitTesting_USBDI + { + +/** +*/ +class MRequestHandler + { +public: + /** + Called when a control vendor request from the host is received and does not require data being + sent back to the host. + @param aRequest the control request value + @param aValue a parameter value for the request + @param aIndex an index parameter for the request + @param aDataReqLength the length of the data to be returned to the host + @param aPayload the data payload sent to the device by the host in a data phase + */ + + virtual TInt ProcessRequestL(TUint8 aRequest,TUint16 aValue,TUint16 aIndex,TUint16 aDataReqLength, + const TDesC8& aPayload) = 0; + }; + + + +/** +This class describes a entity that reads control requests from endpoint 0 +*/ +class CControlEndpointReader : public CEndpointReader, public MEndpointDataHandler + { +public: + + /** + Constructor, build a reader of requests from endpoint zero + @param aClientDriver the channel to the USB client driver + @param aRequestHandler the handler of control requests + */ + + CControlEndpointReader(RDevUsbcClient& aClientDriver,MRequestHandler& aRequestHandler); + + /** + Destructor + */ + + virtual ~CControlEndpointReader(); + + /** + Reads requests sent by the host on endpoint 0. This includes any data from the data phase + of the transfer + */ + + void ReadRequestsL(); + +public: // From MEndpointDataHandler + + /** + Interprets the data received as a control request on endpoint 0 + @param aEndpointNumber the number of the endpoint read from + @param aData the data successfully read from the endpoint + */ + + virtual void DataReceivedFromEndpointL(TEndpointNumber aEndpointNumber,const TDesC8& aData); + + /** + Notified when an error occurs on a read from the endpoint + @param aEndpointNumber the number of the endpoint read from + @param aErrorCode the read operation completion error + */ + + void EndpointReadError(TEndpointNumber aEndpointNumber,TInt aErrorCode); + +private: + + // Flag to indicate + TBool iDeviceToHost; + TBool iDataPhase; + + /** + The request status of the entity processing requests + */ + MRequestHandler& iRequestHandler; + + /** + The fields of the control transfer request + */ + TUint8 ibRequestType; + TUint8 ibRequest; + TUint16 iwValue; + TUint16 iwIndex; + TUint16 iwLength; + }; + + } + + +#endif + +