userlibandfileserver/fileserver/shostmassstorage/server/transport/cusbifacehandler.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 16 Apr 2010 16:24:37 +0300
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permissions -rw-r--r--
Revision: 201015 Kit: 201015
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// Copyright (c) 2008-2010 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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 @internalTechnology
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*/
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#include <e32base.h>
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#include <d32usbdi_hubdriver.h>
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#include <d32usbdi.h>
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#include <d32otgdi.h>
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#include <d32usbdescriptors.h>
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#include <d32usbtransfers.h>
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#include "botmsctypes.h"
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#include "msctypes.h"
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#include "mtransport.h"
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#include "mprotocol.h"
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#include "cusbifacehandler.h"
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#include "cbulkonlytransport.h"
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#include "debug.h"
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#include "msdebug.h"
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CUsbInterfaceHandler* CUsbInterfaceHandler::NewL(RUsbInterface &aInterface, RUsbPipe& aBulkPipeIn)
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	{
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	return new (ELeave) CUsbInterfaceHandler(aInterface, aBulkPipeIn);
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	}
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CUsbInterfaceHandler::CUsbInterfaceHandler(RUsbInterface &aInterface, RUsbPipe& aBulkPipeIn)
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:	CActive(EPriorityStandard),
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	iInterface(aInterface),
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    iBulkPipeIn(aBulkPipeIn)
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	{
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    __MSFNLOG
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	CActiveScheduler::Add(this);
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	}
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CUsbInterfaceHandler::~CUsbInterfaceHandler()
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	{
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    __MSFNLOG
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	if (iState != ENone)
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		{
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		iState = ENone;
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		iBotGetMaxLun.Complete(KErrCancel);
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		Cancel();
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		}
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	}
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/**
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Cancellation of outstanding request
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*/
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void CUsbInterfaceHandler::DoCancel()
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	{
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    __MSFNLOG
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	}
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/**
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Completion of USB transport request.
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*/
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void CUsbInterfaceHandler::RunL()
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    {
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    __MSFNLOG
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	TInt error = iStatus.Int();
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	if (error == KErrUsbStalled && iState == EGetMaxLun)
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        {
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        // Devices that do not support multiple LUNs may STALL this command
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		__BOTPRINT(_L("...KErrUsbStalled"));		
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        iBulkPipeIn.ClearRemoteStall();
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        error = KErrNone;     
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        }
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	else if (error == KErrNone)
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        {
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		__BOTPRINT(_L("...KErrNone"));
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		if (iState == EGetMaxLun)
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            {
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			__BOTPRINT(_L("...sending GetMaxLun response"));
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			*ipGetMaxLun = iBuffer[0];
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            }
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        }
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    else
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        {
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        __BOTPRINT(_L("...completeing with KErrGeneral"));
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        error = KErrGeneral;
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        }
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    iState = ENone;
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	iBotGetMaxLun.Complete(error);
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    }
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void CUsbInterfaceHandler::GetMaxLun(TLun* aMaxLun, const RMessage2& aMessage)
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	{
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    __MSFNLOG
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	/* Send the Get max lun command in the ep0 */
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	RUsbInterface::TUsbTransferRequestDetails reqDetails;
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	_LIT8(KNullDesC8,"");
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	iBotGetMaxLun = aMessage;
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	iState = EGetMaxLun;
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	ipGetMaxLun = aMaxLun;
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    *ipGetMaxLun = 0;       // default response is MaxLUN=0
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	reqDetails.iRequestType = 0xA1;
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	reqDetails.iRequest = 0xFE;
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	reqDetails.iValue = 0x0000;
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	reqDetails.iIndex = 0x0000;
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	reqDetails.iFlags = 0x04;		// Short transfer OK
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	iBuffer.SetLength(1);
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	iInterface.Ep0Transfer(reqDetails, KNullDesC8, iBuffer, iStatus);
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	SetActive();
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	}
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