os/kernelhwsrv/kernel/eka/include/drivers/usbdi_channel.h
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
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// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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/**
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 @file
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 @internalComponent
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*/
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#ifndef USBDI_CHANNEL_H
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#define USBDI_CHANNEL_H
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class DUsbInterface;
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class DUsbPageList;
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/**
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  Logical Device (factory class) for USBDI
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*/
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NONSHARABLE_CLASS(DUsbdiFactory) : public DLogicalDevice
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	{
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public:
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	DUsbdiFactory();
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	~DUsbdiFactory();
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private:
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	//	Inherited from DLogicalDevice
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	virtual TInt Install();
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	virtual void GetCaps(TDes8& aDes) const;
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	virtual TInt Create(DLogicalChannelBase*& aChannel);
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	};
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NONSHARABLE_CLASS(DUsbdiChannel) : public DLogicalChannelBase
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	{
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public:
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	DUsbdiChannel();
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	TInt DoCreate(TInt aUnit, const TDesC8* aInfo, const TVersion& aVer);
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	TInt Request(TInt aReqNo, TAny* a1, TAny* a2);
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	virtual void CloseChannel();
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private:
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	~DUsbdiChannel();
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	TInt Close();
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	TInt AllocChunk(TInt aRequestSize, TInt* aChunkHandle, TInt* aOffset);
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	void CloseChunk();
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	TInt HandleControl(TInt aReqNo, TAny* a1, TAny* a2);
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	TInt HandleRequest(TInt aReqNo, TRequestStatus* aReq, TAny* a1, TAny* a2);
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	TInt HandleCancel(TUint aCancelMask);
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private:
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	DUsbInterface* iInterface;
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	DUsbPageList* iPageList; // Owns the shared chunk
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	};
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#endif