/*

* 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 "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:  Implementation

 *

*/

#include <usbman.h>

#include "cusbhosteventnotificationobserver.h"

#include "definitions.h"

#include "debug.h"

#include "panic.h"

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

CUsbHostEventNotificationObserver::CUsbHostEventNotificationObserver(

        RUsb* aUsb) :

    CActive(EPriorityStandard), iUsb(aUsb)

    {

    CActiveScheduler::Add(this);

    }

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

void CUsbHostEventNotificationObserver::ConstructL()

    {

        FLOG( _L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::ConstructL" ) );

    }

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

CUsbHostEventNotificationObserver* CUsbHostEventNotificationObserver::NewL(

        RUsb* aUsb)

    {

        FLOG( _L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::NewL" ) );

    CUsbHostEventNotificationObserver* self =

            new (ELeave) CUsbHostEventNotificationObserver(aUsb);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

    }

// ---------------------------------------------------------------------------

// 

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//

CUsbHostEventNotificationObserver::~CUsbHostEventNotificationObserver()

    {

        FLOG( _L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::~CUsbHostEventNotificationObserver" ) );

    Cancel();

    iObservers.Close();

    }

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

void CUsbHostEventNotificationObserver::SubscribeL(

        MUsbHostEventNotificationObserver* aObserver)

    {

        FLOG( _L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::SubscribeL" ) );

    User::LeaveIfError(iObservers.Append(aObserver));

    if (KFirst == iObservers.Count()) // first item

        {

        iUsb->HostEventNotification(iStatus, iEventInfo);

        SetActive();

        }

    }

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

void CUsbHostEventNotificationObserver::UnsubscribeL(

        MUsbHostEventNotificationObserver* aObserver)

    {

        FLOG( _L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::UnsubscribeL" ) );

    if (0 == iObservers.Count()) // no items

        {

        FLOG( _L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::UnsubscribeL No observers" ) );

        return;

        }

    TInt i(0);

    while (i < iObservers.Count() && aObserver != iObservers[i])

        ++i;

    if (aObserver == iObservers[i]) // found

        {

        iObservers.Remove(i);

        }

    else

        {

            FLOG( _L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::UnsubscribeL CanNotFindIdPinObserver" ) );

        Panic(ECanNotFindIdPinObserver);

        }

    if (0 == iObservers.Count()) // no items

        {

        // cancel pending request

        Cancel();

        }

    }

// ---------------------------------------------------------------------------

//

// ---------------------------------------------------------------------------

//

void CUsbHostEventNotificationObserver::RunL()

    {

        FTRACE( FPrint(_L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::RunL iStatus = %d" ), iStatus.Int()));

        // if error occured, tell to Observers

        if(KErrNone != iStatus.Int()) 

            {

            for (TInt i(0); i < iObservers.Count(); ++i)

                 {

                 iObservers[i]->HostEventNotificationErrorL(iStatus.Int());

                 }

            return;

            }

    TDeviceEventInformation dei(iEventInfo);

    // re-issue request first

    iUsb->HostEventNotification(iStatus, iEventInfo);

    SetActive();

        // Log the event

        FTRACE( FPrint(_L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::RunL iEventInfo.iDeviceId         = %d" ), dei.iDeviceId));

        FTRACE( FPrint(_L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::RunL iEventInfo.iEventType        = %d" ), dei.iEventType));

        FTRACE( FPrint(_L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::RunL iEventInfo.iError            = %d" ), dei.iError));

        FTRACE( FPrint(_L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::RunL iEventInfo.iDriverLoadStatus = %d" ), dei.iDriverLoadStatus));

        FTRACE( FPrint(_L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::RunL iEventInfo.iVid              = %d" ), dei.iVid));

        FTRACE( FPrint(_L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::RunL iEventInfo.iPid              = %d" ), dei.iPid));

    // then process property change

    switch (dei.iEventType)

        {

        case EDeviceAttachment:

            {

                FLOG( _L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::RunL DeviceAttachment" ) );

            for (TInt i(0); i < iObservers.Count(); ++i)

                {

                iObservers[i]->DeviceAttachedL(dei);

                }

            break;

            }

        case EDeviceDetachment:

            {

                FLOG( _L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::RunL DeviceDetachment" ) );

            for (TInt i(0); i < iObservers.Count(); ++i)

                {

                iObservers[i]->DeviceDetachedL(dei);

                }

            break;

            }

        case EDriverLoad:

            {

            switch (dei.iDriverLoadStatus)

                {

                case EDriverLoadSuccess:

                    {

                        FLOG( _L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::RunL DriverLoadSuccess" ) );

                    for (TInt i(0); i < iObservers.Count(); ++i)

                        {

                        iObservers[i]->DriverLoadSuccessL(dei);

                        }

                    break;

                    }

                case EDriverLoadPartialSuccess:

                    {

                        FLOG( _L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::RunL DriverLoadPartialSuccess" ) );

                    for (TInt i(0); i < iObservers.Count(); ++i)

                        {

                        iObservers[i]->DriverLoadPartialSuccessL(dei);

                        }

                    break;

                    }

                case EDriverLoadFailure:

                    {

                        FLOG( _L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::RunL DriverLoadFailure" ) );

                    for (TInt i(0); i < iObservers.Count(); ++i)

                        {

                        iObservers[i]->DriverLoadFailureL(dei);

                        }

                    break;

                    }

                default:

                    {

                        FLOG( _L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::RunL DriverLoadFailure WrongDriverLoadStatus" ) );

                    Panic(EWrongDriverLoadStatus);

                    }

                }

            break;

            }

        default:

            {

                FLOG( _L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::RunL WrongHostEventNotification" ) );

            Panic(EWrongHostEventNotification);

            }

        }

    }

// ---------------------------------------------------------------------------

// 

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//

void CUsbHostEventNotificationObserver::DoCancel()

    {

    iUsb->HostEventNotificationCancel();

    }

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

TInt CUsbHostEventNotificationObserver::RunError(TInt aError)

    {

        FTRACE( FPrint(_L( "[USBOTGWATCHER]\tCUsbHostEventNotificationObserver::RunError aError = %d" ), aError));

    // try to recover and continue	

    return KErrNone;

    }