/*
* Copyright (c) 2004-2009 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: 
* Class definition for Device State Notifier Base Class
*
*/


/** 
 @file
 @internalTechnology
*/

#include <e32base.h>

#include "cactivedevicestatenotifierbase.h"

CActiveDeviceStateNotifierBase::CActiveDeviceStateNotifierBase(CBulkOnlyTransport& aBot,
                                                               MLddDeviceStateNotification& aLddDeviceStateNotification)
/**
 *
 */
	: CActive(EPriorityStandard),
	  iBot(aBot),
      iLddDeviceStateNotification(aLddDeviceStateNotification),
	  iDeviceState(EUsbcNoState),
	  iOldDeviceState(EUsbcNoState)
	{

	}


CActiveDeviceStateNotifierBase* CActiveDeviceStateNotifierBase::NewL(CBulkOnlyTransport& aBot,
                                                                     MLddDeviceStateNotification& aLddDeviceStateNotification)
/**
 *
 */
	{
	CActiveDeviceStateNotifierBase* self = new (ELeave) CActiveDeviceStateNotifierBase(aBot, aLddDeviceStateNotification);
	CleanupStack::PushL(self);
	self->ConstructL();
	CActiveScheduler::Add(self);
	CleanupStack::Pop();									// self
	return (self);
	}


void CActiveDeviceStateNotifierBase::ConstructL()
/**
 *
 */
	{
	__FNLOG("CActiveDeviceStateNotifierBase::ConstructL");
	}


CActiveDeviceStateNotifierBase::~CActiveDeviceStateNotifierBase()
/**
 *
 */
	{
	__PRINT(_L("CActiveDeviceStateNotifierBase::~CActiveDeviceStateNotifierBase()"));
	Cancel();												// base class
	}


void CActiveDeviceStateNotifierBase::DoCancel()
/**
 *
 */
	{
	__PRINT(_L("CActiveDeviceStateNotifierBase::DoCancel()"));
	iLddDeviceStateNotification.Cancel();
	}


void CActiveDeviceStateNotifierBase::RunL()
/**
 *
 */
	{
	__FNLOG("CActiveDeviceStateNotifierBase::RunL");
	// This displays the device state.
	// In a real world program, the user could take here appropriate action (cancel a
	// transfer request or whatever).
    __PRINT1(_L("DeviceState Notification = %d"), iDeviceState);

	if (!(iDeviceState & KUsbAlternateSetting))
		{
		switch (iDeviceState)
			{
        case EUsbcDeviceStateUndefined:			//0
        case EUsbcDeviceStateDefault:			//3
			iBot.HwStop();
			break;

		case EUsbcDeviceStateAttached:			//1
		case EUsbcDeviceStatePowered:			//2
            // do nothing
            break;

        case EUsbcDeviceStateAddress:			//4
			if (iOldDeviceState == EUsbcDeviceStateConfigured)
                {
                iBot.StopBulkOnlyEndpoint();
                }
			break;

		case EUsbcDeviceStateConfigured:		//5
			if (iOldDeviceState == EUsbcDeviceStateSuspended)
				{
				iBot.HwResume();
				}
			else
				{
				iBot.HwStart();
				}
			break;
		case EUsbcDeviceStateSuspended:			//6
			if (iOldDeviceState == EUsbcDeviceStateConfigured)
				{
				iBot.HwSuspend();
				}
			break;
		default:
			__PRINT(_L("Device State notifier: ***BAD***\n"));
			iBot.HwStop();
			break;
			}
		iOldDeviceState = iDeviceState;
		}
	else if (iDeviceState & KUsbAlternateSetting)
		{
		__PRINT1(_L("Device State notifier: Alternate interface setting has changed: now %d\n"), iDeviceState & ~KUsbAlternateSetting);
		}
	Activate();
	}


void CActiveDeviceStateNotifierBase::Activate()
/**
 *
 */
	{
	__FNLOG("CActiveDeviceStateNotifierBase::Activate");
	if (IsActive())
		{
		__PRINT(_L("Still active\n"));
		return;
		}
	iLddDeviceStateNotification.Activate(iStatus, iDeviceState);
	SetActive();
	}