author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 06 Jul 2010 16:23:38 +0300 | |
changeset 31 | 4bea936937d0 |
parent 0 | c9bc50fca66e |
child 29 | 59aa7d6e3e0f |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997-2009 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: |
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* Talks directly to the USB Logical Device Driver (LDD) and |
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* watches any state changes |
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* |
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*/ |
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|
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/** |
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@file |
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*/ |
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#include <usb/usblogger.h> |
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#include "CUsbScheduler.h" |
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#include "CUsbDeviceStateWatcher.h" |
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#include "CUsbDevice.h" |
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#ifdef __FLOG_ACTIVE |
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_LIT8(KLogComponent, "USBSVR"); |
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#endif |
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/** |
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* The CUsbDeviceStateWatcher::NewL method |
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* |
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* Constructs a new CUsbDeviceStateWatcher object |
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* |
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* @internalComponent |
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* @param aOwner The device that owns the state watcher |
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* @param aLdd A reference to the USB Logical Device Driver |
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* |
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* @return A new CUsbDeviceStateWatcher object |
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*/ |
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CUsbDeviceStateWatcher* CUsbDeviceStateWatcher::NewL(CUsbDevice& aOwner, RDevUsbcClient& aLdd) |
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{ |
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LOG_STATIC_FUNC_ENTRY |
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CUsbDeviceStateWatcher* r = new (ELeave) CUsbDeviceStateWatcher(aOwner, aLdd); |
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return r; |
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} |
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/** |
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* The CUsbDeviceStateWatcher::~CUsbDeviceStateWatcher method |
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* |
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* Destructor |
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* |
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* @internalComponent |
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*/ |
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CUsbDeviceStateWatcher::~CUsbDeviceStateWatcher() |
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{ |
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LOGTEXT2(_L8(">CUsbDeviceStateWatcher::~CUsbDeviceStateWatcher (0x%08x)"), (TUint32) this); |
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Cancel(); |
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} |
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/** |
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* The CUsbDeviceStateWatcher::CUsbDeviceStateWatcher method |
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* |
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* Constructor |
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* |
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* @param aOwner The device that owns the state watcher |
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* @param aLdd A reference to the USB Logical Device Driver |
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*/ |
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CUsbDeviceStateWatcher::CUsbDeviceStateWatcher(CUsbDevice& aOwner, RDevUsbcClient& aLdd) |
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: CActive(CActive::EPriorityStandard), iOwner(aOwner), iLdd(aLdd) |
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{ |
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CActiveScheduler::Add(this); |
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} |
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/** |
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* Called when the USB device changes its state. |
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*/ |
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void CUsbDeviceStateWatcher::RunL() |
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{ |
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if (iStatus.Int() != KErrNone) |
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{ |
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LOGTEXT2(_L8("CUsbDeviceStateWatcher::RunL() - Error = %d"), iStatus.Int()); |
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return; |
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} |
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LOGTEXT2(_L8("CUsbDeviceStateWatcher::RunL() - State Changed to %d"), iState); |
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if (!(iState & KUsbAlternateSetting)) |
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iOwner.SetDeviceState((TUsbcDeviceState) iState); |
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LOGTEXT(_L8("CUsbDeviceStateWatcher::RunL() - About to call DeviceStatusNotify")); |
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iLdd.AlternateDeviceStatusNotify(iStatus, iState); |
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SetActive(); |
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LOGTEXT(_L8("CUsbDeviceStateWatcher::RunL() - Called DeviceStatusNotify")); |
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} |
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/** |
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* Automatically called when the state watcher is cancelled. |
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*/ |
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void CUsbDeviceStateWatcher::DoCancel() |
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{ |
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LOG_FUNC |
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iLdd.AlternateDeviceStatusNotifyCancel(); |
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} |
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/** |
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* Instructs the state watcher to start watching. |
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*/ |
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void CUsbDeviceStateWatcher::Start() |
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{ |
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LOG_FUNC |
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iLdd.AlternateDeviceStatusNotify(iStatus, iState); |
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SetActive(); |
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} |