// Copyright (c) 2008-2009 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:

// Shared message service definitions 

// 

//

/**

 @file

 @internalTechnology

*/

#ifndef __HOSTUSBMSMSGSERVICE_H__

#define __HOSTUSBMSMSGSERVICE_H__

/**

Package structure for a Read or Write request

*/

struct TReadWrite

    {

    /** position */

	TInt64 iPos;

    /** Length */

	TInt iLen;

    };

const TInt KUsbHostMsSrvMajorVersionNumber = 1;

const TInt KUsbHostMsSrvMinorVersionNumber = 0;

const TInt KUsbHostMsSrvBuildVersionNumber = 0;

_LIT(KUsbHostMsServerName, "usbhostmssrv");

/** Types of requests Host USB mass storage file extention and MM can make */

enum TUsbHostMsReqType

	{

	EUsbHostMsRegisterInterface,	// Adds the mass storage device to the server

	EUsbHostMsInitialiseInterface,	// Initialises the interface with the transport and setsup async call for GetMaxLun

	EUsbHostMsUnRegisterInterface,	// Removes the mass storage device from the server

	EUsbHostMsFinalCleanup,	// Called after unregistering the interface to cleanup any final bits in the session

	EUsbHostMsGetNumLun,	// Gets the maximum lun for found in the MS device

	EUsbHostMsRegisterLun,	// Opens a subsession and registers the LunId

	EUsbHostMsUnRegisterLun,// Closes the subsession

	EUsbHostMsShutdown,		// Shuts down the server

	EUsbHostMsNotifyChange,	// Registers with MSC to get any media change notifications

	EUsbHostMsSuspendLun,	// Requests MSC to suspend the logical unit and registers with MSC to invoke when resumed

	EUsbHostMsCapacity,		// Get the logical unit or device capacity

	EUsbHostMsRead,			// Do a read on the logical unit or device

	EUsbHostMsWrite,		// Do a write to the logical unit or device

    EUsbHostMsErase,        // Erase an area on the logical unit or device

    EUsbHostMsForceRemount, // Force a remount of the drive

	EUsbHostMsCancelChangeNotifier, // Cancel the media change notifier

	EUsbHostMsLast		    // This should always be at the end of the enum

	};

#endif //__HOSTUSBMSMSGSERVICE_H__