// Copyright (c) 2009-2010 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:
// CUsbMassStorageController implementation.
//
//



/**
 @file
 @internalTechnology
*/

#include <e32base.h>
#include <d32usbc.h>

#include "mstypes.h"
#include "msctypes.h"
#include "testman.h"
#include "drivemanager.h"

#include "tscsiserverreq.h"
#include "tscsiservercmds.h"
#include "mserverprotocol.h"
#include "cscsiserverprotocol.h"
#include "mdevicetransport.h"
#include "cbulkonlytransport.h"

#include "cusbmassstorageserver.h"
#include "cusbmassstoragecontroller.h"
#include "debug.h"


CUsbMassStorageController* CUsbMassStorageController::NewL()
    {
    CUsbMassStorageController* self = new (ELeave) CUsbMassStorageController();
    CleanupStack::PushL(self);
    self->ConstructL();
    CleanupStack::Pop();
    return self;
    }


CUsbMassStorageController::CUsbMassStorageController()
    {
    }


void CUsbMassStorageController::ConstructL()
    {
#ifdef MSDC_TESTMODE
    // TestParser for modifying client behaviour to create  BOT 13 Case device
    // exceptions conditions
    __TESTMODEPRINT("Test Mode is active");
    iTestParser = new (ELeave) TTestParser;
#endif
    }

/**
Destructor
*/
CUsbMassStorageController::~CUsbMassStorageController()
    {
    delete iServer;
    delete iProtocol;
    delete iTransport;
    delete iDriveManager;
    }

/**
Creates the drive manager, transport, protocol and server

@param aMaxDrives Maximum number of Mass Storage drives supported.
*/
void CUsbMassStorageController::CreateL(const TLunToDriveMap& aDriveMapping)
    {
    //Create and init drive manager
    iDriveManager = CDriveManager::NewL(aDriveMapping);

    //Create transport and protocol and initialize them
    __PRINT(_L("CUsbMassStorageController::CreateL: Creating transport and protocol"));
#ifdef MSDC_TESTMODE
    iTransport = CBulkOnlyTransport::NewL(aDriveMapping.Count(), *this, iTestParser);
    iProtocol = CScsiServerProtocol::NewL(*iDriveManager, iTestParser);
#else
    iTransport = CBulkOnlyTransport::NewL(aDriveMapping.Count(), *this);
    iProtocol = CScsiServerProtocol::NewL(*iDriveManager);
#endif
    iTransport->RegisterProtocol(*iProtocol);
    iProtocol->RegisterTransport(iTransport);

    //Create and start server
    __PRINT(_L("CUsbMassStorageController::CreateL: Creating server"));
    iServer = CUsbMassStorageServer::NewLC(*this);
    CleanupStack::Pop(iServer);
    }

/**
Returns a reference to the drive manager

@return A reference to the drive manager
*/
CDriveManager& CUsbMassStorageController::DriveManager()
    {
    return *iDriveManager;
    }

/**
Starts the transport and initializes the protocol.

@param aConfig Reference to Mass Storage configuration data
*/
TInt CUsbMassStorageController::Start(const TMassStorageConfig& aConfig)
    {
    //Save this value for use in the Reset method.
    iConfig = aConfig;
    TInt err = KErrNotReady;
    if (iProtocol && iTransport)
        {
        __PRINT(_L("CUsbMassStorageController::Start: Starting"));
        iProtocol->SetParameters(aConfig);
        err = iTransport->Start();
        }
    return err;
    }

/**
Stops the transport.
*/
TInt CUsbMassStorageController::Stop()
    {
    TInt err = KErrNotReady;
    if (iTransport)
        {
        __PRINT(_L("CUsbMassStorageController::Stop: Stopping"));
        err = iTransport->Stop();
        }

    iDriveManager->SetCritical(CDriveManager::KAllLuns, EFalse);   //unset critical
    return err;
    }

/**
Delete the transport and protocol and start new ones.
*/
void CUsbMassStorageController::Reset()
    {
    delete iProtocol;
    iProtocol = NULL;

    //Create transport and protocol and initialize them
    __PRINT(_L("CUsbMassStorageController::Reset: Creating  protocol"));

#ifdef MSDC_TESTMODE
    TRAPD(err,iProtocol = CScsiServerProtocol::NewL(*iDriveManager, iTestParser));
#else
    TRAPD(err,iProtocol = CScsiServerProtocol::NewL(*iDriveManager));
#endif
    err = err;
    __ASSERT_DEBUG(err==KErrNone, User::Invariant());
    iTransport->RegisterProtocol(*iProtocol);
    iProtocol->RegisterTransport(iTransport);
    iProtocol->SetParameters(iConfig);
    }