/*

* 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 "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: 

*

*/

// INCLUDE FILES

#include <e32std.h>                      

#include "TrkUsbPortListener.h" 

// LOCAL FUNCTION PROTOTYPES

// LOCAL CONSTANTS

const TUint KTrkUsbDeviceStateMask				= 0x00ff;

#if(defined __SERIES60_30__ || defined __SERIES60_31__ || defined __S60_32__)

#define KPersonalityPCSuite               113

#else

#define KPersonalityPCSuite               5

#endif

//

// CTrkUsbPortListener::CTrkUsbPortListener

// Constructor

//

CTrkUsbPortListener::CTrkUsbPortListener (MTrkUsbConnectionListener *aConnectionListener) 

		  	  :CTrkCommPortListener(aConnectionListener, CActive::EPriorityStandard)

{

	iConnected = EFalse;

	iPersonalityId = 0;

	iUsbDeviceState = EUsbDeviceStateUndefined;

    TInt err = iUsbServer.Connect();

    err = iUsbServer.GetDeviceState( iUsbDeviceState );

    if (!err)

    	err = iUsbServer.GetCurrentPersonalityId( iPersonalityId );

    if (!err && iUsbDeviceState == EUsbDeviceStateConfigured

    		 && iPersonalityId == KPersonalityPCSuite)

    		 iConnected = ETrue;

    CActiveScheduler::Add( this ); 

}

//

// CTrkUsbPortListener::~CTrkUsbPortListener

// Destructor

//

CTrkUsbPortListener::~CTrkUsbPortListener()

{

    Cancel();   // Ensure that any outstanding requests are cancelled

    Deque();

    iUsbServer.Close();

}

//

// CTrkUsbPortListener::ListenL

// Starts listening for usb connection status notifications..

//

void CTrkUsbPortListener::ListenL()

{		

	IssueRequestL();		

}

//

// CTrkUsbPortListener::IssueRequestL

//

void CTrkUsbPortListener::IssueRequestL()

{		

	if (IsActive()) //already listening, just return...

		return;

	if ( iUsbDeviceState == EUsbDeviceStateUndefined )

	{

		User::LeaveIfError( iUsbServer.GetDeviceState( iUsbDeviceState ) );

	}

	iUsbServer.DeviceStateNotification(KTrkUsbDeviceStateMask, iUsbDeviceState, iStatus);

	SetActive();	

}

//

// CTrkUsbPortListener::StopListening

// Cancel any pending requests for connection status notifications.

//

void CTrkUsbPortListener::StopListening()

{

	Cancel();	

}

//

// CTrkUsbPortListener::DoCancel

// This method gets called from CActive::Cancel();

//

void CTrkUsbPortListener::DoCancel()

{

	iUsbServer.DeviceStateNotificationCancel();	

	iUsbDeviceState = EUsbDeviceStateUndefined;

}

//

// CTrkUsbPortListener::RunL

// This method gets called whenever there is a change in the connection status.

// Right now we are interested only when the cable is disconnected. 

// For all the other notifications, just reissues the request.

//

void CTrkUsbPortListener::RunL()

{

	User::LeaveIfError( iStatus.Int() );

	iUsbServer.GetCurrentPersonalityId( iPersonalityId );

  	if ( iUsbDeviceState == EUsbDeviceStateUndefined ||

         (iUsbDeviceState == EUsbDeviceStateConfigured && iPersonalityId != KPersonalityPCSuite) ) 

	{

		iConnectionListener->ConnectionUnAvailable();

		iConnected = EFalse;

	}

	// There is something wrong USB cable status notifications

	// When the cable is disconnected, first you get a notification 

	// with the device state as configured.

	// So we need to work around using a local status flag

	else if ( iUsbDeviceState == EUsbDeviceStateConfigured &&

			  iPersonalityId == KPersonalityPCSuite  && 

			  !iConnected) 

	{

		iConnected = ETrue;

		iConnectionListener->ConnectionAvailable();;

	}		

		IssueRequestL();

}