1 /*

     2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 * Talks directly to the USB Logical Device Driver (LDD) and 

    16 * watches any state changes

    17 *

    18 */

    19 

    20 /**

    21  @file

    22 */

    23 

    24 #include "idpinwatcher.h"

    25 #include <usb/usbshared.h>

    26 

    27 CIdPinWatcher* CIdPinWatcher::NewL(MOtgPropertiesObserver* aObserver)

    28 	{

    29 	CIdPinWatcher* self = new(ELeave) CIdPinWatcher(aObserver);

    30 	CleanupStack::PushL(self);

    31 	self->ConstructL();

    32 	CleanupStack::Pop(self);

    33 	return self;

    34 	}

    35 

    36 CIdPinWatcher::~CIdPinWatcher()

    37 	{

    38 	Cancel();

    39 	iIdPinProp.Close();

    40 	}

    41 

    42 CIdPinWatcher::CIdPinWatcher(MOtgPropertiesObserver* aObserver)

    43 	: CActive(EPriorityStandard)

    44 	, iObserver(aObserver), iIdPinValue(EFalse)

    45 	{

    46 	CActiveScheduler::Add(this);

    47 	}

    48 

    49 void CIdPinWatcher::ConstructL()

    50 	{

    51 	User::LeaveIfError(iIdPinProp.Attach(KUidUsbManCategory, KUsbOtgIdPinPresentProperty));

    52 	iIdPinProp.Subscribe(iStatus);

    53 	SetActive();

    54 

    55 	TInt err = iIdPinProp.Get(iIdPinValue);

    56 	if (KErrNone != err)

    57 		{

    58 		iIdPinValue = EFalse;

    59 		}

    60 	}

    61 

    62 void CIdPinWatcher::DoCancel()

    63 	{

    64 	iIdPinProp.Cancel();

    65 	}

    66 

    67 void CIdPinWatcher::RunL()

    68 	{

    69 	iIdPinProp.Subscribe(iStatus);

    70 	SetActive();

    71 

    72 	TInt err = iIdPinProp.Get(iIdPinValue);

    73 	if (KErrNone == err)

    74 		{

    75 		iObserver->MpsoIdPinStateChanged(iIdPinValue);

    76 		}

    77 	else

    78 		{

    79 		iIdPinValue = EFalse;

    80 		}

    81 	}

    82 

    83 TInt CIdPinWatcher::IdPinValue() const

    84 	{

    85 	return iIdPinValue;

    86 	}