author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 09:14:30 +0200 | |
changeset 0 | 1e05558e2206 |
child 5 | 7068aba64af5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Monitors host events |
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* |
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*/ |
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#ifndef C_USBHOSTEVENTNOTIFICATIONOBSERVER_H |
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#define C_USBHOSTEVENTNOTIFICATIONOBSERVER_H |
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#include <e32base.h> |
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#include <e32property.h> |
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#include <usbotgdefs.h> |
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#include <usbhostdefs.h> |
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class RUsb; |
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/** |
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* Observer must implement this interface to get notifications |
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* |
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*/ |
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NONSHARABLE_CLASS( MUsbHostEventNotificationObserver) |
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{ |
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public: |
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/** |
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* Called when device is attached |
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* @param aInfo additional information |
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*/ |
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virtual void DeviceAttachedL(TDeviceEventInformation aInfo) = 0; |
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/** |
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* Called when device is detached |
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* @param aInfo additional information |
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*/ |
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virtual void DeviceDetachedL(TDeviceEventInformation aInfo) = 0; |
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/** |
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* Called when drivers are loaded |
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* @param aInfo additional information |
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*/ |
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virtual void DriverLoadSuccessL(TDeviceEventInformation aInfo) = 0; |
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/** |
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* Called when drivers are loaded partially |
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* @param aInfo additional information |
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*/ |
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virtual void DriverLoadPartialSuccessL(TDeviceEventInformation aInfo) = 0; |
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/** |
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* Called when drivers loading failed |
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* @param aInfo additional information |
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*/ |
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virtual void DriverLoadFailureL(TDeviceEventInformation aInfo) = 0; |
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/** |
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* Called when error happens while observing |
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* @param aError error code |
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*/ |
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virtual void HostEventNotificationErrorL(TInt aError) = 0; |
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}; |
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/** |
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* Class observes USB Notifications |
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*/ |
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NONSHARABLE_CLASS( CUsbHostEventNotificationObserver ) : public CActive |
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{ |
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public: |
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/** |
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* Two-phased constructor. |
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* @param aUsb usbman |
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* @return this class instance |
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*/ |
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static CUsbHostEventNotificationObserver* NewL(RUsb* aUsb); |
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/** |
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* Destructor. |
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*/ |
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virtual ~CUsbHostEventNotificationObserver(); |
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/** |
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* Add observer to list of observers |
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* @param aObserver observer |
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*/ |
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void SubscribeL(MUsbHostEventNotificationObserver* aObserver); |
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/** |
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* Removes observer from list of observers |
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* @param aObserver Observer |
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*/ |
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void UnsubscribeL(MUsbHostEventNotificationObserver* aObserver); |
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private: |
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// From CActive |
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/** |
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* Called when request completed |
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*/ |
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void RunL(); |
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/** |
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* Called when outstanding request cancelled |
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*/ |
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void DoCancel(); |
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/** |
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* Called when RunL leaves |
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* @param aError errorcode from RunL |
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* @return aError errorcode |
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*/ |
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TInt RunError(TInt aError); |
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private: |
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/** |
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* Default constructor. |
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* @param aUsb usbman |
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*/ |
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CUsbHostEventNotificationObserver(RUsb* aUsb); |
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/** |
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* 2nd phase constructor. |
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*/ |
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void ConstructL(); |
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private: |
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// data |
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/** |
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* The observer reports changes to own observers |
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* Owns |
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*/ |
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RPointerArray<MUsbHostEventNotificationObserver> iObservers; |
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/** |
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* Notifications come from USB |
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* Not own |
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*/ |
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RUsb* iUsb; |
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/** |
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* Info from notification comes to this member |
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*/ |
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TDeviceEventInformation iEventInfo; |
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}; |
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#endif // C_USBHOSTEVENTNOTIFICATIONOBSERVER_H |