usbengines/usbotgwatcher/src/cusbhosteventnotificationobserver.cpp
author Pat Downey <patd@symbian.org>
Fri, 04 Jun 2010 10:27:39 +0100
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/*
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 * Copyright (c) 2008 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:  Implementation
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 *
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 */
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#include <usbman.h>
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#include "cusbhosteventnotificationobserver.h"
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#include "definitions.h"
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#include "debug.h"
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#include "panic.h"
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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CUsbHostEventNotificationObserver::CUsbHostEventNotificationObserver(
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        RUsb* aUsb) :
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    CActive(EPriorityStandard), iUsb(aUsb)
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    {
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    CActiveScheduler::Add(this);
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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void CUsbHostEventNotificationObserver::ConstructL()
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    {
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    LOG_FUNC
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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CUsbHostEventNotificationObserver* CUsbHostEventNotificationObserver::NewL(
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        RUsb* aUsb)
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    {
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    LOG_FUNC
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    CUsbHostEventNotificationObserver* self =
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            new (ELeave) CUsbHostEventNotificationObserver(aUsb);
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    CleanupStack::PushL(self);
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    self->ConstructL();
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    CleanupStack::Pop(self);
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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CUsbHostEventNotificationObserver::~CUsbHostEventNotificationObserver()
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    {
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    LOG_FUNC
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    Cancel();
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    iObservers.Close();
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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void CUsbHostEventNotificationObserver::SubscribeL(
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        MUsbHostEventNotificationObserver& aObserver)
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    {
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    LOG_FUNC
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    // check if the same observer already exist in a list
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    if (KErrNotFound != iObservers.Find(&aObserver))
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        {
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        LOG("Observer already exists" );
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        PANIC( EObserverAlreadyExists);
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        return;
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        }
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    iObservers.AppendL(&aObserver);
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    if (KFirst == iObservers.Count()) // first item
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        {
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        iUsb->HostEventNotification(iStatus, iEventInfo);
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        SetActive();
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        }
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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void CUsbHostEventNotificationObserver::UnsubscribeL(
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        MUsbHostEventNotificationObserver& aObserver)
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    {
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    LOG_FUNC
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    TInt i(iObservers.Find(&aObserver));
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    if (KErrNotFound == i)
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        {
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        LOG("Observer not found");
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        PANIC( ECanNotFindHostEventNotificationObserver);
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        return;
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        }
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    iObservers.Remove(i);
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    if (0 == iObservers.Count()) // no observers anymore
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        {
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        // cancel pending request
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        Cancel();
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        }
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    }
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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//
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void CUsbHostEventNotificationObserver::RunL()
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    {
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    LOG_FUNC
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    LOG1( "iStatus = %d", iStatus.Int());
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    // if error occured, tell to Observers
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    if (KErrNone != iStatus.Int())
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        {
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        for (TInt i(0); i < iObservers.Count(); ++i)
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            {
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            iObservers[i]->HostEventNotificationErrorL(iStatus.Int());
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            }
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        return;
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        }
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    TDeviceEventInformation dei(iEventInfo);
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    // re-issue request first
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    iUsb->HostEventNotification(iStatus, iEventInfo);
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    SetActive();
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parents:
diff changeset
   156
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   157
    // Log the event
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   158
    LOG1( "iEventInfo.iDeviceId         = %d" , dei.iDeviceId);
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   159
    LOG1( "iEventInfo.iEventType        = %d" , dei.iEventType);
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   160
    LOG1( "iEventInfo.iError            = %d" , dei.iError);
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   161
    LOG1( "iEventInfo.iDriverLoadStatus = %d" , dei.iDriverLoadStatus);
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   162
    LOG1( "iEventInfo.iVid              = %d" , dei.iVid);
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   163
    LOG1( "iEventInfo.iPid              = %d" , dei.iPid);
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diff changeset
   164
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   165
    // then process property change
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diff changeset
   166
    switch (dei.iEventType)
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   167
        {
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   168
        case EDeviceAttachment:
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diff changeset
   169
            {
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   170
            LOG("DeviceAttachment" );
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   171
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   172
            for (TInt i(0); i < iObservers.Count(); ++i)
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   173
                {
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   174
                iObservers[i]->DeviceAttachedL(dei);
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diff changeset
   175
                }
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   176
            break;
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   177
            }
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   178
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diff changeset
   179
        case EDeviceDetachment:
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diff changeset
   180
            {
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   181
            LOG( "DeviceDetachment" );
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   182
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   183
            for (TInt i(0); i < iObservers.Count(); ++i)
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   184
                {
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   185
                iObservers[i]->DeviceDetachedL(dei);
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diff changeset
   186
                }
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   187
            break;
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parents:
diff changeset
   188
            }
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diff changeset
   189
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diff changeset
   190
        case EDriverLoad:
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parents:
diff changeset
   191
            {
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   192
            switch (dei.iDriverLoadStatus)
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diff changeset
   193
                {
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parents:
diff changeset
   194
                case EDriverLoadSuccess:
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diff changeset
   195
                    {
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diff changeset
   196
                    LOG( "DriverLoadSuccess" );
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parents:
diff changeset
   197
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diff changeset
   198
                    for (TInt i(0); i < iObservers.Count(); ++i)
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diff changeset
   199
                        {
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diff changeset
   200
                        iObservers[i]->DriverLoadSuccessL(dei);
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   201
                        }
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parents:
diff changeset
   202
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parents:
diff changeset
   203
                    break;
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parents:
diff changeset
   204
                    }
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   205
                case EDriverLoadPartialSuccess:
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   206
                    {
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   207
                    LOG( "DriverLoadPartialSuccess" );
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   208
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parents:
diff changeset
   209
                    for (TInt i(0); i < iObservers.Count(); ++i)
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   210
                        {
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   211
                        iObservers[i]->DriverLoadPartialSuccessL(dei);
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   212
                        }
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   213
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   214
                    break;
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   215
                    }
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   216
                case EDriverLoadFailure:
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   217
                    {
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   218
                    LOG( "DriverLoadFailure");
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   219
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parents:
diff changeset
   220
                    for (TInt i(0); i < iObservers.Count(); ++i)
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   221
                        {
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   222
                        iObservers[i]->DriverLoadFailureL(dei);
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   223
                        }
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   224
                    break;
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   225
                    }
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   226
                default:
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   227
                    {
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   228
                    LOG("WrongDriverLoadStatus" );
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   229
                    PANIC( EWrongDriverLoadStatus);
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   230
                    }
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   231
                }
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   232
            break;
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   233
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   234
            }
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   235
        default:
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   236
            {
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   237
            LOG( "WrongHostEventNotification" );
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   238
            PANIC( EWrongHostEventNotification);
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   239
            }
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   240
        }
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   241
    }
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   242
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   243
// ---------------------------------------------------------------------------
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   244
// 
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   245
// ---------------------------------------------------------------------------
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   246
//
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   247
void CUsbHostEventNotificationObserver::DoCancel()
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   248
    {
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   249
    iUsb->HostEventNotificationCancel();
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   250
    }
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   251
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   252
// ---------------------------------------------------------------------------
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   253
// 
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   254
// ---------------------------------------------------------------------------
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   255
//
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Pat Downey <patd@symbian.org>
parents:
diff changeset
   256
TInt CUsbHostEventNotificationObserver::RunError(TInt aError)
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   257
    {
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   258
    LOG_FUNC
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   259
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   260
    LOG1( "aError = %d" , aError);
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   261
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   262
    // try to recover and continue	
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   263
    return KErrNone;
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   264
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   265
    }
9d8b04ca6939 Revert last code drop.
Pat Downey <patd@symbian.org>
parents:
diff changeset
   266