// Copyright (c) 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 client/server definitions
// 
//



/**
 @file
 @internalAll
 @released
*/

#ifndef __USBMSSHARED_H__
#define __USBMSSHARED_H__

#include <f32fsys.h>

#include "mstypes.h"

const TInt KUsbMsSrvMajorVersionNumber = 1;
const TInt KUsbMsSrvMinorVersionNumber = 0;
const TInt KUsbMsSrvBuildVersionNumber = 0;

const TInt KUsbMsResourceVersion = 0;

_LIT(KUsbMsServerName, "usbmsserver");


/** Types of requests USB mass storage class controller can make */
enum TUsbMsReqType
	{
	EUsbMsStart,
	EUsbMsStop,
	EUsbMsShutdown,
	};

/**
@publishedPartner
@released

The USB Class Controller identifier.
*/
const TUid KUsbMsClassControllerUID={0x10204BBC};

/**
@publishedPartner
@released

The Publish & Subscribe Category for all USB Mass Storage events.
*/
const TUid KUsbMsDriveState_Category={KFileServerUidValue};

/**
@publishedPartner
@released

The Publish & Subscribe event subkey enumeration.
*/
enum TUsbMsDriveState_Subkey
	{
	EUsbMsDriveState_DriveStatus,
	EUsbMsDriveState_KBytesRead,
	EUsbMsDriveState_KBytesWritten,
	EUsbMsDriveState_MediaError
	};

/**
@publishedPartner
@released

Possible values for each of EUsbMsDriveState_DriveStatus status codes.
*/
enum EUsbMsDriveStates
	{
	/** File system not available for Mass Storage */
	EUsbMsDriveState_Disconnected	=0x0,
	/** Host has required connection */
	EUsbMsDriveState_Connecting		=0x1,
	/** File system available to Mass Storage */
	EUsbMsDriveState_Connected		=0x2,
	/** Disconnecting from Mass Storage */
	EUsbMsDriveState_Disconnecting	=0x3,
	/** Critical write - do not remove card */
	EUsbMsDriveState_Active			=0x4,
	/** Connected, but locked with a password */
	EUsbMsDriveState_Locked			=0x5,
	/** Connected, but card not present */
	EUsbMsDriveState_MediaNotPresent=0x6,
	/** Card removed while active */
	EUsbMsDriveState_Removed		=0x7,
	/** General error */
	EUsbMsDriveState_Error			=0x8
	};


/**
@publishedPartner
@released

A collection of integers, contained in a TBuf8 for compatibility
with RProperty.  Used for the EUsbMsDriveState_KBytesRead/Written
events.
*/
class TUsbMsBytesTransferred : public TBuf8<KUsbMsMaxDrives*sizeof(TInt)>
	{
	public:
	inline TUsbMsBytesTransferred();
	inline TInt& operator[](TUint aLun);
	};
/**
@publishedPartner
@released */
TUsbMsBytesTransferred::TUsbMsBytesTransferred()
	{
	SetLength(MaxLength());
	Fill(0);
	}

/**
@publishedPartner
@released

Return one of the integers contained in this buffer.
@return Bytes transferred count for the specified drive.
@param aLun Drive index
*/
TInt& TUsbMsBytesTransferred::operator[](TUint aLun)
	{
	__ASSERT_DEBUG(aLun < static_cast<TUint>(MaxLength()), User::Invariant());
	return *(reinterpret_cast<TInt*>(const_cast<TUint8*>(Ptr())) + aLun);
	}

#endif //__USBMSSHARED_H__