os/kernelhwsrv/userlibandfileserver/fileserver/smassstorage/cusbmassstoragecontroller.cpp
1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/kernelhwsrv/userlibandfileserver/fileserver/smassstorage/cusbmassstoragecontroller.cpp Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,164 @@
1.4 +// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
1.5 +// All rights reserved.
1.6 +// This component and the accompanying materials are made available
1.7 +// under the terms of the License "Eclipse Public License v1.0"
1.8 +// which accompanies this distribution, and is available
1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.10 +//
1.11 +// Initial Contributors:
1.12 +// Nokia Corporation - initial contribution.
1.13 +//
1.14 +// Contributors:
1.15 +//
1.16 +// Description:
1.17 +// CUsbMassStorageController implementation.
1.18 +//
1.19 +//
1.20 +
1.21 +/**
1.22 + @file
1.23 + @internalTechnology
1.24 +*/
1.25 +
1.26 +#include "cusbmassstoragecontroller.h"
1.27 +#include "massstoragedebug.h"
1.28 +#include "scsiprot.h"
1.29 +#include "cbulkonlytransport.h"
1.30 +
1.31 +/**
1.32 +Destructor
1.33 +*/
1.34 +CUsbMassStorageController::~CUsbMassStorageController()
1.35 + {
1.36 + delete iServer;
1.37 + delete iProtocol;
1.38 + delete iTransport;
1.39 + delete iDriveManager;
1.40 + }
1.41 +
1.42 +/**
1.43 +Creates the drive manager, transport, protocol and server
1.44 +
1.45 +@param aMaxDrives Maximum number of Mass Storage drives supported.
1.46 +*/
1.47 +void CUsbMassStorageController::CreateL(RArray<TInt>& aDriveMapping)
1.48 + {
1.49 + __PRINT(_L("CUsbMassStorageController::CreateL In"));
1.50 + iTransportLddFlag = EUsbcsc; // Create transport object using SC Ldd By default
1.51 + //Save this value for use in the Reset method.
1.52 + iMaxDrives = aDriveMapping.Count();
1.53 + //Create and init drive manager
1.54 + iDriveManager = CDriveManager::NewL(aDriveMapping);
1.55 +
1.56 + //Create transport and protocol and initialize them
1.57 + __PRINT(_L("CUsbMassStorageController::CreateL: Creating transport and protocol"));
1.58 + iTransport = CBulkOnlyTransport::NewL(iMaxDrives, *this, iTransportLddFlag);
1.59 + if (!iTransport)
1.60 + User::Leave(KErrNoMemory);
1.61 +
1.62 + iProtocol = CScsiProtocol::NewL(*iDriveManager);
1.63 +
1.64 + //Create and start server
1.65 + __PRINT(_L("CUsbMassStorageController::CreateL: Creating server"));
1.66 + iServer = CUsbMassStorageServer::NewLC(*this);
1.67 + CleanupStack::Pop(iServer);
1.68 + __PRINT(_L("CUsbMassStorageController::CreateL Out"));
1.69 + }
1.70 +
1.71 +/**
1.72 +Returns a reference to the drive manager
1.73 +
1.74 +@return A reference to the drive manager
1.75 +*/
1.76 +CDriveManager& CUsbMassStorageController::DriveManager()
1.77 + {
1.78 + return *iDriveManager;
1.79 + }
1.80 +
1.81 +
1.82 +void CUsbMassStorageController::GetTransport(MTransportBase* &aTransport)
1.83 + {
1.84 + aTransport = iTransport;
1.85 + }
1.86 +
1.87 +/**
1.88 +Starts the transport and initializes the protocol.
1.89 +
1.90 +@param aConfig Reference to Mass Storage configuration data
1.91 +*/
1.92 +TInt CUsbMassStorageController::Start(TMassStorageConfig& aConfig)
1.93 + {
1.94 + __PRINT(_L("CUsbMassStorageController::Start In"));
1.95 + //Save this value for use in the Reset method.
1.96 + iConfig = aConfig;
1.97 +
1.98 + __ASSERT_DEBUG(iTransport, User::Invariant());
1.99 + if ((iTransport->InitialiseTransportL((TInt) iTransportLddFlag)) != KErrNone)
1.100 + {
1.101 + iTransportLddFlag = EUsbc; // If SC Ldd not present use the default USB Client Ldd
1.102 + delete iTransport;
1.103 + iTransport = CBulkOnlyTransport::NewL(iMaxDrives, *this, iTransportLddFlag);
1.104 + if (!iTransport)
1.105 + User::Leave(KErrNoMemory);
1.106 + if ((iTransport->InitialiseTransportL((TInt) iTransportLddFlag)) != KErrNone)
1.107 + return KErrNotFound;
1.108 + }
1.109 +
1.110 + TInt err = KErrNotReady;
1.111 +
1.112 + if (iProtocol && iTransport)
1.113 + {
1.114 + iTransport->RegisterProtocol(*iProtocol);
1.115 + iProtocol->RegisterTransport(iTransport);
1.116 + __PRINT(_L("CUsbMassStorageController::Start: Starting"));
1.117 + ((CScsiProtocol*)iProtocol)->SetScsiParameters(aConfig);
1.118 + err = iTransport->Start();
1.119 + }
1.120 +
1.121 + __PRINT(_L("CUsbMassStorageController::Start Out"));
1.122 +
1.123 + return err;
1.124 + }
1.125 +
1.126 +/**
1.127 +Stops the transport.
1.128 +*/
1.129 +TInt CUsbMassStorageController::Stop()
1.130 + {
1.131 +
1.132 + __PRINT(_L("CUsbMassStorageController::Stop In"));
1.133 + TInt err = KErrNotReady;
1.134 + if (iTransport)
1.135 + {
1.136 + __PRINT(_L("CUsbMassStorageController::Stop: Stopping"));
1.137 + err = iTransport->Stop();
1.138 + }
1.139 + TInt i=0;
1.140 + for (i=0; i<=iMaxDrives; ++i)
1.141 + {
1.142 + iDriveManager->SetCritical(i, EFalse); //unset critical
1.143 + }
1.144 + __PRINT(_L("CUsbMassStorageController::Stop Out"));
1.145 +
1.146 + return err;
1.147 + }
1.148 +
1.149 +/**
1.150 +Delete the transport and protocol and start new ones.
1.151 +*/
1.152 +void CUsbMassStorageController::Reset()
1.153 + {
1.154 +
1.155 + delete iProtocol;
1.156 + iProtocol = NULL;
1.157 +
1.158 + //Create transport and protocol and initialize them
1.159 + __PRINT(_L("CUsbMassStorageController::Reset: Creating protocol"));
1.160 +
1.161 + TRAPD(err,iProtocol = CScsiProtocol::NewL(*iDriveManager));
1.162 + err = err;
1.163 + __ASSERT_DEBUG(err==KErrNone, User::Invariant());
1.164 + iTransport->RegisterProtocol(*iProtocol);
1.165 + iProtocol->RegisterTransport(iTransport);
1.166 + }
1.167 +