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/*
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* Copyright (c) 2004-2009 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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/**
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@file
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@internalTechnology
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*/
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#include "cbulkonlytransport.h"
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#include "cbulkonlytransportusbcldd.h"
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#include "usbmsshared.h"
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#include "massstoragedebug.h"
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#include "cusbmassstorageserver.h"
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#define InEndpoint EEndpoint1
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#define OutEndpoint EEndpoint2
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//This value defined in USB Mass Storage Bulk Only Transrt spec and not supposed to be changed
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LOCAL_D const TInt KRequiredNumberOfEndpoints = 2; // in addition to endpoint 0.
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LOCAL_D const TInt KUsbNumInterfacesOffset = 4;
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////////////////////////////////////
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/**
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Called by CBulkOnlyTransportUsbcLdd to create an instance of CControlInterfaceUsbcLdd
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@param aParent reference to the CBulkOnlyTransportUsbcLdd
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*/
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CControlInterfaceUsbcLdd* CControlInterfaceUsbcLdd::NewL(CBulkOnlyTransportUsbcLdd& aParent)
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{
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CControlInterfaceUsbcLdd* self = new(ELeave) CControlInterfaceUsbcLdd(aParent);
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CleanupStack::PushL(self);
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self->ConstructL();
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CActiveScheduler::Add(self);
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CleanupStack::Pop();
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return self;
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}
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void CControlInterfaceUsbcLdd::ConstructL()
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{
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}
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/**
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c'tor
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@param aParent reference to the CBulkOnlyTransportUsbcLdd
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*/
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CControlInterfaceUsbcLdd::CControlInterfaceUsbcLdd(CBulkOnlyTransportUsbcLdd& aParent)
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:CActive(EPriorityStandard),
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iParent(aParent),
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iCurrentState(ENone)
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{
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}
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/**
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d'tor
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*/
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CControlInterfaceUsbcLdd::~CControlInterfaceUsbcLdd()
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{
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__FNLOG("CControlInterfaceUsbcLdd::~CControlInterfaceUsbcLdd ");
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Cancel();
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}
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/**
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Called by CBulkOnlyTransport HwStart to start control interface
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*/
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TInt CControlInterfaceUsbcLdd::Start()
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{
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__FNLOG("CControlInterfaceUsbcLdd::Start ");
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TInt res = ReadEp0Data();
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return (res);
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}
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/**
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Called by desctructor of CBulkOnlyTransportUsbcLdd to stop control interface
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*/
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void CControlInterfaceUsbcLdd::Stop()
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{
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__FNLOG("CControlInterfaceUsbcLdd::Stop ");
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if (!IsActive())
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{
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__PRINT(_L("Not active\n"));
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return;
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}
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__PRINT(_L("\nStopping...\n"));
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iCurrentState = ENone;
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Cancel();
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}
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/**
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Cancel outstanding request (if any)
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*/
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void CControlInterfaceUsbcLdd::DoCancel()
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{
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__FNLOG("CControlInterfaceUsbcLdd::DoCancel ");
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switch(iCurrentState)
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{
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case EReadEp0Data:
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iParent.Ldd().ReadCancel(EEndpoint0);
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break;
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case ESendMaxLun:
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iParent.Ldd().WriteCancel(EEndpoint0);
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break;
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default:
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__PRINT(_L("\nWrong state !\n"));
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__ASSERT_DEBUG(EFalse, User::Panic(KUsbMsSvrPncCat, EMsControlInterfaceBadState));
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}
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}
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/**
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Implement CControlInterfaceUsbcLdd state machine
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*/
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void CControlInterfaceUsbcLdd::RunL()
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{
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__FNLOG("CControlInterfaceUsbcLdd::RunL ");
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if (iStatus != KErrNone)
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{
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__PRINT1(_L("Error %d in RunL\n"), iStatus.Int());
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//read EP0 again
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ReadEp0Data();
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return;
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}
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switch (iCurrentState)
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{
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case ESendMaxLun:
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ReadEp0Data();
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break;
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case EReadEp0Data:
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DecodeEp0Data();
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break;
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default:
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__PRINT(_L(" error: (Shouldn't end up here...)\n"));
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__ASSERT_DEBUG(EFalse, User::Panic(KUsbMsSvrPncCat, EMsControlInterfaceBadState));
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break;
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}
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return;
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}
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/**
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Post a read request to EEndpoint0 to read request header
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*/
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TInt CControlInterfaceUsbcLdd::ReadEp0Data()
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{
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__FNLOG("CControlInterfaceUsbcLdd::ReadEp0Data ");
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if (IsActive())
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{
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__PRINT(_L("Still active\n"));
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return KErrServerBusy;
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}
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iParent.Ldd().Read(iStatus, EEndpoint0, iData, KRequestHdrSize);
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iCurrentState = EReadEp0Data;
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SetActive();
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return KErrNone;
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}
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/**
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Decode request header and do appropriate action - get max LUN info or post a reset request
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*/
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void CControlInterfaceUsbcLdd::DecodeEp0Data()
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{
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__FNLOG("CControlInterfaceUsbcLdd::DecodeEp0Data ");
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if (IsActive())
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{
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__PRINT(_L("Still active\n"));
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__ASSERT_DEBUG(EFalse, User::Panic(KUsbMsSvrPncCat, EMsControlInterfaceStillActive));
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return;
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}
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TInt err = iRequestHeader.Decode(iData);
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if(err != KErrNone)
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return;
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switch(iRequestHeader.iRequest)
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{
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//
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// GET MAX LUN (0xFE)
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//
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case TUsbRequestHdr::EReqGetMaxLun:
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{
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__PRINT1(_L("DecodeEp0Data : 'Get Max LUN' Request MaxLun = %d"),iParent.MaxLun() );
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if ( iRequestHeader.iRequestType != 0xA1 //value from USB MS BOT spec
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|| iRequestHeader.iIndex > 15
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|| iRequestHeader.iValue != 0
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|| iRequestHeader.iLength != 1)
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{
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__PRINT(_L("GetMaxLun command packet check error"));
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iParent.Ldd().EndpointZeroRequestError();
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break;
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}
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iData.FillZ(1); //Return only 1 byte to host
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iData[0] = static_cast<TUint8>(iParent.MaxLun()); // Supported Units
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iParent.Ldd().Write(iStatus, EEndpoint0, iData, 1);
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iCurrentState = ESendMaxLun;
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SetActive();
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return;
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}
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//
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// RESET (0xFF)
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//
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case TUsbRequestHdr::EReqReset:
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{
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__PRINT(_L("DecodeEp0Data : 'Mass Storage Reset' Request"));
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if ( iRequestHeader.iRequestType != 0x21 //value from USB MS BOT spec
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|| iRequestHeader.iIndex > 15
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|| iRequestHeader.iValue != 0
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|| iRequestHeader.iLength != 0)
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{
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__PRINT(_L("MSC Reset command packet check error"));
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iParent.Ldd().EndpointZeroRequestError();
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break;
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}
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iParent.HwStop();
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iParent.Controller().Reset();
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iParent.HwStart(ETrue);
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err = iParent.Ldd().SendEp0StatusPacket();
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return;
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}
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//
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// Unknown?
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//
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default:
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{
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__PRINT(_L("DecodeEp0Data : Unknown Request"));
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}
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}
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ReadEp0Data(); //try to get another request
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}
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//
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// --- class CBulkOnlyTransportUsbcLdd ---------------------------------------------------------
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//
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CBulkOnlyTransportUsbcLdd::CBulkOnlyTransportUsbcLdd(TInt aNumDrives,CUsbMassStorageController& aController)
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:CBulkOnlyTransport(aNumDrives, aController),
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iSwap(ETrue)
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{
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__FNLOG("CBulkOnlyTransportUsbcLdd::CBulkOnlyTransportUsbcLdd");
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}
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/**
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Constructs the CBulkOnlyTransportUsbcLdd object
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*/
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void CBulkOnlyTransportUsbcLdd::ConstructL()
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{
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__FNLOG("CBulkOnlyTransportUsbcLdd::ConstructL()");
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iControlInterface = CControlInterfaceUsbcLdd::NewL(*this);
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iDeviceStateNotifier = CActiveDeviceStateNotifierBase::NewL(*this, *this);
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CActiveScheduler::Add(this);
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}
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CBulkOnlyTransportUsbcLdd::~CBulkOnlyTransportUsbcLdd()
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{
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__FNLOG("CBulkOnlyTransportUsbcLdd::~CBulkOnlyTransportUsbcLdd");
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if (iInterfaceConfigured)
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{
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delete iControlInterface ;
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delete iDeviceStateNotifier;
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}
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}
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RDevUsbcClient& CBulkOnlyTransportUsbcLdd::Ldd()
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{
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return iLdd;
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}
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/**
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Set or unset configuration descriptor for USB MassStorage Bulk Only transport
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@param aUnset indicate whether set or unset descriptor
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@return KErrNone if operation was completed successfully, errorcode otherwise
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*/
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TInt CBulkOnlyTransportUsbcLdd::SetupConfigurationDescriptor(TBool aUnset)
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{
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__FNLOG("CBulkOnlyTransportUsbcLdd::SetupConfigurationDescriptor");
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TInt ret(KErrNone);
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if ((ret = iLdd.Open(0)) != KErrNone)
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return ret;
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TInt configDescriptorSize(0);
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iLdd.GetConfigurationDescriptorSize(configDescriptorSize);
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if (static_cast<TUint>(configDescriptorSize) != KUsbDescSize_Config)
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{
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return KErrCorrupt;
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}
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TBuf8<KUsbDescSize_Config> configDescriptor;
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ret = iLdd.GetConfigurationDescriptor(configDescriptor);
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if (ret != KErrNone)
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{
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return ret;
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}
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// I beleive that other fields setted up during LDD initialisation
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if (aUnset)
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{
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--configDescriptor[KUsbNumInterfacesOffset];
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}
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else
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{
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++configDescriptor[KUsbNumInterfacesOffset];
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}
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ret = iLdd.SetConfigurationDescriptor(configDescriptor);
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if (aUnset)
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{
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iLdd.Close();
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}
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return ret;
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}
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/**
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Set up interface descriptor
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@return KErrNone if operation was completed successfully, errorcode otherwise
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*/
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TInt CBulkOnlyTransportUsbcLdd::SetupInterfaceDescriptors()
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{
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__FNLOG("CBulkOnlyTransportUsbcLdd::SetupInterfaceDescriptors");
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// Device caps
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TUsbDeviceCaps d_caps;
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TInt ret = iLdd.DeviceCaps(d_caps);
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if (ret != KErrNone)
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{
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return ret;
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}
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TInt totalEndpoints = d_caps().iTotalEndpoints;
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if (totalEndpoints < KRequiredNumberOfEndpoints)
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{
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return KErrHardwareNotAvailable;
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}
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// Endpoint caps
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TUsbcEndpointData data[KUsbcMaxEndpoints];
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TPtr8 dataptr(reinterpret_cast<TUint8*>(data), sizeof(data), sizeof(data));
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ret = iLdd.EndpointCaps(dataptr);
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if (ret != KErrNone)
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{
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return ret;
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}
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// Set the active interface
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TUsbcInterfaceInfoBuf ifc;
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TInt ep_found = 0;
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TBool foundBulkIN = EFalse;
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TBool foundBulkOUT = EFalse;
|
|
|
393 |
|
|
|
394 |
for (TInt i = 0; i < totalEndpoints ; i++)
|
|
|
395 |
{
|
|
|
396 |
const TUsbcEndpointCaps* caps = &data[i].iCaps;
|
|
|
397 |
const TInt maxPacketSize = caps->MaxPacketSize();
|
|
|
398 |
if (!foundBulkIN &&
|
|
|
399 |
(caps->iTypesAndDir & (KUsbEpTypeBulk | KUsbEpDirIn)) == (KUsbEpTypeBulk | KUsbEpDirIn))
|
|
|
400 |
{
|
|
|
401 |
// InEndpoint is going to be our TX (IN, write) endpoint
|
|
|
402 |
ifc().iEndpointData[0].iType = KUsbEpTypeBulk;
|
|
|
403 |
ifc().iEndpointData[0].iDir = KUsbEpDirIn;
|
|
|
404 |
ifc().iEndpointData[0].iSize = maxPacketSize;
|
|
|
405 |
ifc().iEndpointData[0].iInterval_Hs = 0;
|
|
|
406 |
foundBulkIN = ETrue;
|
|
|
407 |
if (++ep_found == KRequiredNumberOfEndpoints)
|
|
|
408 |
{
|
|
|
409 |
break;
|
|
|
410 |
}
|
|
|
411 |
continue;
|
|
|
412 |
}
|
|
|
413 |
if (!foundBulkOUT &&
|
|
|
414 |
(caps->iTypesAndDir & (KUsbEpTypeBulk | KUsbEpDirOut)) == (KUsbEpTypeBulk | KUsbEpDirOut))
|
|
|
415 |
{
|
|
|
416 |
// OutEndpoint is going to be our RX (OUT, read) endpoint
|
|
|
417 |
ifc().iEndpointData[1].iType = KUsbEpTypeBulk;
|
|
|
418 |
ifc().iEndpointData[1].iDir = KUsbEpDirOut;
|
|
|
419 |
ifc().iEndpointData[1].iSize = maxPacketSize;
|
|
|
420 |
ifc().iEndpointData[1].iInterval_Hs = 0;
|
|
|
421 |
foundBulkOUT = ETrue;
|
|
|
422 |
if (++ep_found == KRequiredNumberOfEndpoints)
|
|
|
423 |
{
|
|
|
424 |
break;
|
|
|
425 |
}
|
|
|
426 |
continue;
|
|
|
427 |
}
|
|
|
428 |
}
|
|
|
429 |
if (ep_found != KRequiredNumberOfEndpoints)
|
|
|
430 |
{
|
|
|
431 |
return KErrHardwareNotAvailable;
|
|
|
432 |
}
|
|
|
433 |
|
|
|
434 |
_LIT16(string, "USB Mass Storage Interface");
|
|
|
435 |
ifc().iString = const_cast<TDesC16*>(&string);
|
|
|
436 |
ifc().iTotalEndpointsUsed = KRequiredNumberOfEndpoints;
|
|
|
437 |
ifc().iClass.iClassNum = 0x08; // Mass Storage
|
|
|
438 |
ifc().iClass.iSubClassNum = 0x06; // SCSI Transparent Command Set
|
|
|
439 |
ifc().iClass.iProtocolNum = 0x50; // Bulk Only Transport
|
|
|
440 |
|
|
|
441 |
TUint bandwidth_priority = (EUsbcBandwidthOUTDefault | EUsbcBandwidthINDefault);
|
|
|
442 |
if (d_caps().iHighSpeed)
|
|
|
443 |
{
|
|
|
444 |
// If this device supports USB High-speed, then we request 64KB buffers
|
|
|
445 |
// (otherwise the default 4KB ones will do).
|
|
|
446 |
bandwidth_priority = (EUsbcBandwidthOUTPlus2 | EUsbcBandwidthINPlus2);
|
|
|
447 |
// Also, tell the Protocol about it, because it might want to do some
|
|
|
448 |
// optimizing too.
|
|
|
449 |
iProtocol->ReportHighSpeedDevice();
|
|
|
450 |
}
|
|
|
451 |
ret = iLdd.SetInterface(0, ifc, bandwidth_priority);
|
|
|
452 |
return ret;
|
|
|
453 |
}
|
|
|
454 |
|
|
|
455 |
void CBulkOnlyTransportUsbcLdd::ReleaseInterface()
|
|
|
456 |
{
|
|
|
457 |
iLdd.ReleaseInterface(0);
|
|
|
458 |
}
|
|
|
459 |
|
|
|
460 |
TInt CBulkOnlyTransportUsbcLdd::StartControlInterface()
|
|
|
461 |
{
|
|
|
462 |
return iControlInterface->Start();
|
|
|
463 |
}
|
|
|
464 |
|
|
|
465 |
void CBulkOnlyTransportUsbcLdd::CancelControlInterface()
|
|
|
466 |
{
|
|
|
467 |
iControlInterface->Cancel();
|
|
|
468 |
}
|
|
|
469 |
|
|
|
470 |
void CBulkOnlyTransportUsbcLdd::ActivateDeviceStateNotifier()
|
|
|
471 |
{
|
|
|
472 |
iDeviceStateNotifier->Activate();
|
|
|
473 |
}
|
|
|
474 |
|
|
|
475 |
void CBulkOnlyTransportUsbcLdd::CancelDeviceStateNotifier()
|
|
|
476 |
{
|
|
|
477 |
iDeviceStateNotifier->Cancel();
|
|
|
478 |
}
|
|
|
479 |
|
|
|
480 |
void CBulkOnlyTransportUsbcLdd::CancelReadWriteRequests()
|
|
|
481 |
{
|
|
|
482 |
__FNLOG("CBulkOnlyTransportUsbcLdd::CancelReadWriteRequests");
|
|
|
483 |
iLdd.WriteCancel(InEndpoint);
|
|
|
484 |
iLdd.ReadCancel(OutEndpoint);
|
|
|
485 |
}
|
|
|
486 |
|
|
|
487 |
void CBulkOnlyTransportUsbcLdd::AllocateEndpointResources()
|
|
|
488 |
{
|
|
|
489 |
// Set up DMA if possible (errors are non-critical)
|
|
|
490 |
TInt err = iLdd.AllocateEndpointResource(OutEndpoint, EUsbcEndpointResourceDMA);
|
|
|
491 |
if (err != KErrNone)
|
|
|
492 |
{
|
|
|
493 |
__PRINT1(_L("Set DMA on OUT endpoint failed with error code: %d"), err);
|
|
|
494 |
}
|
|
|
495 |
err = iLdd.AllocateEndpointResource(InEndpoint, EUsbcEndpointResourceDMA);
|
|
|
496 |
if (err != KErrNone)
|
|
|
497 |
{
|
|
|
498 |
__PRINT1(_L("Set DMA on IN endpoint failed with error code: %d"), err);
|
|
|
499 |
}
|
|
|
500 |
|
|
|
501 |
// Set up Double Buffering if possible (errors are non-critical)
|
|
|
502 |
err = iLdd.AllocateEndpointResource(OutEndpoint, EUsbcEndpointResourceDoubleBuffering);
|
|
|
503 |
if (err != KErrNone)
|
|
|
504 |
{
|
|
|
505 |
__PRINT1(_L("Set Double Buffering on OUT endpoint failed with error code: %d"), err);
|
|
|
506 |
}
|
|
|
507 |
err = iLdd.AllocateEndpointResource(InEndpoint, EUsbcEndpointResourceDoubleBuffering);
|
|
|
508 |
if (err != KErrNone)
|
|
|
509 |
{
|
|
|
510 |
__PRINT1(_L("Set Double Buffering on IN endpoint failed with error code: %d"), err);
|
|
|
511 |
}
|
|
|
512 |
}
|
|
|
513 |
|
|
|
514 |
TInt CBulkOnlyTransportUsbcLdd::GetDeviceStatus(TUsbcDeviceState& deviceStatus)
|
|
|
515 |
{
|
|
|
516 |
return iLdd.DeviceStatus(deviceStatus);
|
|
|
517 |
}
|
|
|
518 |
|
|
|
519 |
void CBulkOnlyTransportUsbcLdd::FlushData()
|
|
|
520 |
{
|
|
|
521 |
TInt bytes;
|
|
|
522 |
const TInt err = iLdd.QueryReceiveBuffer(OutEndpoint, bytes);
|
|
|
523 |
if (err != KErrNone || bytes <= 0)
|
|
|
524 |
{
|
|
|
525 |
__PRINT1(_L("Error: err=%d bytes=%d"), bytes);
|
|
|
526 |
}
|
|
|
527 |
else
|
|
|
528 |
{
|
|
|
529 |
__PRINT1(_L("RxBuffer has %d bytes"), bytes);
|
|
|
530 |
ReadAndDiscardData(bytes);
|
|
|
531 |
}
|
|
|
532 |
}
|
|
|
533 |
/**
|
|
|
534 |
* Read out rest data from OutEndpoint and discard them
|
|
|
535 |
*/
|
|
|
536 |
void CBulkOnlyTransportUsbcLdd::ReadAndDiscardData(TInt aBytes)
|
|
|
537 |
{
|
|
|
538 |
__FNLOG("CBulkOnlyTransportUsbcLdd::ReadAndDiscardData");
|
|
|
539 |
iDiscardBuf.SetMax();
|
|
|
540 |
const TUint bufsize = static_cast<TUint>(iDiscardBuf.Length());
|
|
|
541 |
TRequestStatus status;
|
|
|
542 |
while (aBytes > 0)
|
|
|
543 |
{
|
|
|
544 |
__PRINT1(_L("Bytes still to be read: %d\n"), aBytes);
|
|
|
545 |
iLdd.ReadOneOrMore(status, OutEndpoint, iDiscardBuf, bufsize);
|
|
|
546 |
User::WaitForRequest(status);
|
|
|
547 |
TInt err = status.Int();
|
|
|
548 |
if (err != KErrNone)
|
|
|
549 |
{
|
|
|
550 |
// Bad.
|
|
|
551 |
break;
|
|
|
552 |
}
|
|
|
553 |
aBytes -= iDiscardBuf.Length();
|
|
|
554 |
}
|
|
|
555 |
}
|
|
|
556 |
|
|
|
557 |
/**
|
|
|
558 |
Called by the protocol to determine how many bytes of data are available in the read buffer.
|
|
|
559 |
|
|
|
560 |
@return The number of bytes available in the read buffer
|
|
|
561 |
*/
|
|
|
562 |
TInt CBulkOnlyTransportUsbcLdd::BytesAvailable()
|
|
|
563 |
{
|
|
|
564 |
TInt bytes = 0;
|
|
|
565 |
TInt err = iLdd.QueryReceiveBuffer(OutEndpoint, bytes);
|
|
|
566 |
if (err != KErrNone)
|
|
|
567 |
bytes = 0;
|
|
|
568 |
return bytes;
|
|
|
569 |
}
|
|
|
570 |
|
|
|
571 |
|
|
|
572 |
void CBulkOnlyTransportUsbcLdd::StallEndpointAndWaitForClear()
|
|
|
573 |
{
|
|
|
574 |
__FNLOG("CBulkOnlyTransportUsbcLdd::StallEndpointAndWaitForClear");
|
|
|
575 |
|
|
|
576 |
// Now stall this endpoint
|
|
|
577 |
__PRINT1(_L("Stalling endpoint %d"), InEndpoint);
|
|
|
578 |
TInt r = iLdd.HaltEndpoint(InEndpoint);
|
|
|
579 |
if (r != KErrNone)
|
|
|
580 |
{
|
|
|
581 |
__PRINT2(_L("Error: stalling ep %d failed: %d"), InEndpoint, r);
|
|
|
582 |
}
|
|
|
583 |
TEndpointState ep_state;
|
|
|
584 |
TInt i = 0;
|
|
|
585 |
do
|
|
|
586 |
{
|
|
|
587 |
// Wait for 10ms before checking the ep status
|
|
|
588 |
User::After(10000);
|
|
|
589 |
iLdd.EndpointStatus(InEndpoint, ep_state);
|
|
|
590 |
if (++i >= 550)
|
|
|
591 |
{
|
|
|
592 |
// 5.5 secs should be enough (see 9.2.6.1 Request Processing Timing)
|
|
|
593 |
__PRINT1(_L("Error: Checked for ep %d de-stall for 5.5s - giving up now"), InEndpoint);
|
|
|
594 |
// We can now only hope for a Reset Recovery
|
|
|
595 |
return;
|
|
|
596 |
}
|
|
|
597 |
} while ((ep_state == EEndpointStateStalled) && iStarted);
|
|
|
598 |
__PRINT2(_L("Checked for ep %d de-stall: %d time(s)"), InEndpoint, i);
|
|
|
599 |
}
|
|
|
600 |
|
|
|
601 |
|
|
|
602 |
/**
|
|
|
603 |
Read CBW data (KCbwLength) from the host into the read buffer.
|
|
|
604 |
*/
|
|
|
605 |
void CBulkOnlyTransportUsbcLdd::ReadCBW()
|
|
|
606 |
{
|
|
|
607 |
__FNLOG("CBulkOnlyTransportUsbcLdd::ReadCBW");
|
|
|
608 |
if (IsActive())
|
|
|
609 |
{
|
|
|
610 |
__PRINT(_L("Still active\n"));
|
|
|
611 |
__ASSERT_DEBUG(EFalse, User::Panic(KUsbMsSvrPncCat, EMsBulkOnlyStillActive));
|
|
|
612 |
return;
|
|
|
613 |
}
|
|
|
614 |
|
|
|
615 |
iCbwBuf.SetMax();
|
|
|
616 |
iLdd.ReadUntilShort(iStatus, OutEndpoint, iCbwBuf, KCbwLength);
|
|
|
617 |
|
|
|
618 |
iCurrentState = EWaitForCBW;
|
|
|
619 |
SetActive();
|
|
|
620 |
}
|
|
|
621 |
|
|
|
622 |
void CBulkOnlyTransportUsbcLdd::ExpireData(TAny* /*aAddress*/)
|
|
|
623 |
{
|
|
|
624 |
// Intentionally left blank
|
|
|
625 |
}
|
|
|
626 |
|
|
|
627 |
void CBulkOnlyTransportUsbcLdd::ProcessCbwEvent()
|
|
|
628 |
{
|
|
|
629 |
DecodeCBW();
|
|
|
630 |
}
|
|
|
631 |
|
|
|
632 |
|
|
|
633 |
/**
|
|
|
634 |
Request data form the host for the protocol
|
|
|
635 |
|
|
|
636 |
@param aLength amount of data (in bytes) to be received from the host
|
|
|
637 |
*/
|
|
|
638 |
void CBulkOnlyTransportUsbcLdd::ReadData(TUint aLength)
|
|
|
639 |
{
|
|
|
640 |
__FNLOG("CBulkOnlyTransportUsbcLdd::ReadData");
|
|
|
641 |
if (IsActive())
|
|
|
642 |
{
|
|
|
643 |
__PRINT(_L("Still active\n"));
|
|
|
644 |
__ASSERT_DEBUG(EFalse, User::Panic(KUsbMsSvrPncCat, EMsBulkOnlyStillActive));
|
|
|
645 |
return;
|
|
|
646 |
}
|
|
|
647 |
|
|
|
648 |
SetReadDataBufPtr(aLength);
|
|
|
649 |
iLdd.Read(iStatus, OutEndpoint, iReadBufPtr, aLength);
|
|
|
650 |
|
|
|
651 |
iCurrentState = EReadingData;
|
|
|
652 |
SetActive();
|
|
|
653 |
}
|
|
|
654 |
|
|
|
655 |
void CBulkOnlyTransportUsbcLdd::WriteUsb(TRequestStatus& aStatus, TPtrC8& aDes, TUint aLength, TBool aZlpRequired)
|
|
|
656 |
{
|
|
|
657 |
iLdd.Write(aStatus, InEndpoint, aDes, aLength, aZlpRequired);
|
|
|
658 |
}
|
|
|
659 |
|
|
|
660 |
void CBulkOnlyTransportUsbcLdd::SetCbwPtr()
|
|
|
661 |
{
|
|
|
662 |
iCbwBufPtr.Set(iCbwBuf.Ptr(), iCbwBuf.Length());
|
|
|
663 |
}
|
|
|
664 |
|
|
|
665 |
TPtr8& CBulkOnlyTransportUsbcLdd::SetCommandBufPtr(TUint aLength)
|
|
|
666 |
{
|
|
|
667 |
iCommandBufPtr.Set((TUint8*) iCommandBuf.Ptr(), aLength, aLength );
|
|
|
668 |
return iCommandBufPtr;
|
|
|
669 |
}
|
|
|
670 |
|
|
|
671 |
void CBulkOnlyTransportUsbcLdd::SetReadDataBufPtr(TUint aLength) //Write10(Host->Device
|
|
|
672 |
{
|
|
|
673 |
if (iSwap)
|
|
|
674 |
{
|
|
|
675 |
iDataBuf1.SetLength(aLength);
|
|
|
676 |
iReadBufPtr.Set(iDataBuf1.LeftTPtr(iDataBuf1.Length()));
|
|
|
677 |
iSwap = EFalse;
|
|
|
678 |
}
|
|
|
679 |
else
|
|
|
680 |
{
|
|
|
681 |
iDataBuf2.SetLength(aLength);
|
|
|
682 |
iReadBufPtr.Set(iDataBuf2.LeftTPtr(iDataBuf2.Length()));
|
|
|
683 |
iSwap = ETrue;
|
|
|
684 |
}
|
|
|
685 |
}
|
|
|
686 |
|
|
|
687 |
TPtr8& CBulkOnlyTransportUsbcLdd::SetDataBufPtr() //Read10(Device->Host)
|
|
|
688 |
{
|
|
|
689 |
if (iSwap)
|
|
|
690 |
{
|
|
|
691 |
iDataBufPtr.Set((TUint8*) iDataBuf1.Ptr(), KMaxBufSize, KMaxBufSize);
|
|
|
692 |
iSwap = EFalse;
|
|
|
693 |
}
|
|
|
694 |
else
|
|
|
695 |
{
|
|
|
696 |
iDataBufPtr.Set((TUint8*) iDataBuf2.Ptr(), KMaxBufSize, KMaxBufSize);
|
|
|
697 |
iSwap = ETrue;
|
|
|
698 |
}
|
|
|
699 |
return iDataBufPtr;
|
|
|
700 |
}
|
|
|
701 |
|
|
|
702 |
void CBulkOnlyTransportUsbcLdd::SetPaddingBufPtr(TUint aLength)
|
|
|
703 |
{
|
|
|
704 |
iPaddingBufPtr.Set((TUint8*) iBuf.Ptr(), aLength, aLength );
|
|
|
705 |
}
|
|
|
706 |
|
|
|
707 |
|
|
|
708 |
void CBulkOnlyTransportUsbcLdd::SetCswBufPtr(TUint aLength)
|
|
|
709 |
{
|
|
|
710 |
iCswBufPtr.Set((TUint8*) iCswBuf.Ptr(), aLength, aLength );
|
|
|
711 |
}
|
|
|
712 |
|
|
|
713 |
void CBulkOnlyTransportUsbcLdd::ProcessReadingDataEvent()
|
|
|
714 |
{
|
|
|
715 |
TInt ret = KErrNone;
|
|
|
716 |
FOREVER
|
|
|
717 |
{
|
|
|
718 |
if (iReadSetUp)
|
|
|
719 |
{
|
|
|
720 |
ret = iProtocol->ReadComplete(KErrNone);
|
|
|
721 |
}
|
|
|
722 |
|
|
|
723 |
TUint deviceDataLength = iBufSize; // This is the amount (maximum in case of SC Ldd) to be read next.
|
|
|
724 |
|
|
|
725 |
if(ret == KErrCompletion)
|
|
|
726 |
{
|
|
|
727 |
// The protocol has indicated with KErrCompletion that sufficient
|
|
|
728 |
// data is available in the buffer to process the transfer immediately.
|
|
|
729 |
|
|
|
730 |
iDataResidue -= iReadBufPtr.Length();
|
|
|
731 |
SetReadDataBufPtr(deviceDataLength);
|
|
|
732 |
|
|
|
733 |
iLdd.Read(iStatus, OutEndpoint, iReadBufPtr, deviceDataLength);
|
|
|
734 |
User::WaitForRequest(iStatus);
|
|
|
735 |
if (iStatus != KErrNone)
|
|
|
736 |
{
|
|
|
737 |
// An error occurred - halt endpoints for reset recovery
|
|
|
738 |
__PRINT1(_L("Error %d in EReadingData, halt endpoints \n"), iStatus.Int());
|
|
|
739 |
SetPermError();
|
|
|
740 |
return;
|
|
|
741 |
}
|
|
|
742 |
}
|
|
|
743 |
else if(ret == KErrNotReady)
|
|
|
744 |
{
|
|
|
745 |
// The protocol has indicated with KErrNotReady that insufficient
|
|
|
746 |
// data is available in the buffer, so should wait for it to arrive
|
|
|
747 |
|
|
|
748 |
iDataResidue -= iReadBufPtr.Length();
|
|
|
749 |
ReadData(deviceDataLength);
|
|
|
750 |
break;
|
|
|
751 |
}
|
|
|
752 |
else
|
|
|
753 |
{
|
|
|
754 |
// The protocol has indicated that transfer is
|
|
|
755 |
// complete, so send the CSW response to the host.
|
|
|
756 |
iDataResidue -= iReadBufPtr.Length();
|
|
|
757 |
iReadSetUp = EFalse;
|
|
|
758 |
|
|
|
759 |
if (ret != KErrNone)
|
|
|
760 |
{
|
|
|
761 |
iCmdStatus = ECommandFailed;
|
|
|
762 |
}
|
|
|
763 |
|
|
|
764 |
if (iDataResidue)
|
|
|
765 |
{
|
|
|
766 |
__PRINT(_L("Discarding residue"));
|
|
|
767 |
// we have to read as much data as available that host PC sends;
|
|
|
768 |
// otherwise, bulk-out endpoint will need to keep sending NAK back.
|
|
|
769 |
ReadAndDiscardData(iDataResidue);
|
|
|
770 |
}
|
|
|
771 |
SendCSW(iCbwTag, iDataResidue, iCmdStatus);
|
|
|
772 |
break;
|
|
|
773 |
}
|
|
|
774 |
}
|
|
|
775 |
|
|
|
776 |
}
|
|
|
777 |
|
|
|
778 |
void CBulkOnlyTransportUsbcLdd::DiscardData(TUint aLength)
|
|
|
779 |
{
|
|
|
780 |
iBuf.SetLength(KBOTMaxBufSize);
|
|
|
781 |
TUint c = 0;
|
|
|
782 |
TRequestStatus status;
|
|
|
783 |
while (c < aLength)
|
|
|
784 |
{
|
|
|
785 |
TInt len;
|
|
|
786 |
if (aLength - c > KBOTMaxBufSize)
|
|
|
787 |
{
|
|
|
788 |
len = KBOTMaxBufSize;
|
|
|
789 |
}
|
|
|
790 |
else
|
|
|
791 |
{
|
|
|
792 |
len = aLength - c;
|
|
|
793 |
}
|
|
|
794 |
|
|
|
795 |
iLdd.Read(status, OutEndpoint, iBuf, len);
|
|
|
796 |
User::WaitForRequest(status);
|
|
|
797 |
c += KBOTMaxBufSize;
|
|
|
798 |
}
|
|
|
799 |
}
|
|
|
800 |
|
|
|
801 |
void CBulkOnlyTransportUsbcLdd::WriteToClient(TUint aLength)
|
|
|
802 |
{
|
|
|
803 |
SetDataBufPtr();
|
|
|
804 |
iLdd.Read(iStatus, OutEndpoint, iDataBufPtr, aLength);
|
|
|
805 |
User::WaitForRequest(iStatus);
|
|
|
806 |
iProtocol->ReadComplete(KErrGeneral);
|
|
|
807 |
}
|
|
|
808 |
|
|
|
809 |
#ifdef MSDC_MULTITHREADED
|
|
|
810 |
void CBulkOnlyTransportUsbcLdd::GetBufferPointers(TPtr8& aDes1, TPtr8& aDes2)
|
|
|
811 |
{
|
|
|
812 |
aDes1.Set((TUint8*) iDataBuf1.Ptr(), KMaxBufSize, KMaxBufSize);
|
|
|
813 |
aDes2.Set((TUint8*) iDataBuf2.Ptr(), KMaxBufSize, KMaxBufSize);
|
|
|
814 |
}
|
|
|
815 |
#endif
|
|
|
816 |
|
|
|
817 |
void CBulkOnlyTransportUsbcLdd::Activate(TRequestStatus& aStatus, TUint& aDeviceState)
|
|
|
818 |
{
|
|
|
819 |
iLdd.AlternateDeviceStatusNotify(aStatus, aDeviceState);
|
|
|
820 |
}
|
|
|
821 |
|
|
|
822 |
|
|
|
823 |
void CBulkOnlyTransportUsbcLdd::Cancel()
|
|
|
824 |
{
|
|
|
825 |
iLdd.AlternateDeviceStatusNotifyCancel();
|
|
|
826 |
}
|
|
|
827 |
|
|
|
828 |
|
|
|
829 |
|
|
|
830 |
|