usbengines/usbotgwatcher/src/cusbbusactivityobserver.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 19 Feb 2010 23:50:32 +0200
branchRCL_3
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parent 0 1e05558e2206
child 20 a15c582fbf97
permissions -rw-r--r--
Revision: 201003 Kit: 201007
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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:  Implementation
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 *
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*/
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#include <usbotgdefs.h>
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#include "cusbbusactivityobserver.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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CUsbBusActivityObserver::CUsbBusActivityObserver() :
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    CActive(EPriorityStandard)
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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 CUsbBusActivityObserver::ConstructL()
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    {
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        FLOG( _L( "[USBOTGWATCHER]\tCUsbBusActivityObserver::ConstructL" ) );
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    User::LeaveIfError(iBusActivity.Attach(KUidUsbManCategory,
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            KUsbOtgConnectionIdleProperty));
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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CUsbBusActivityObserver* CUsbBusActivityObserver::NewL()
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    {
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        FLOG( _L( "[USBOTGWATCHER]\tCUsbBusActivityObserver::NewL" ) );
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    CUsbBusActivityObserver* self = new (ELeave) CUsbBusActivityObserver();
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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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CUsbBusActivityObserver::~CUsbBusActivityObserver()
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    {
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        FLOG( _L( "[USBOTGWATCHER]\tCUsbBusActivityObserver::~CUsbBusActivityObserver" ) );
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    Cancel();
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    iBusActivity.Close();
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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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CUsbBusActivityObserver::TBusActivity CUsbBusActivityObserver::BusActivity()
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    {
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    TInt val(0);
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    TInt err = iBusActivity.Get(val);
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    if (KErrNone != err)
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        {
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            FLOG( _L( "[USBOTGWATCHER]\tCUsbBusActivityObserver::BusActivity CanNotGetBusActivityProperty" ) );
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        Panic(ECanNotGetBusActivityProperty);
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        }
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        FTRACE( FPrint(_L( "[USBOTGWATCHER]\tCUsbBusActivityObserver::State = %d" ), val ));
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    return (0 == val ? EBusActive : EBusIdle);
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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 CUsbBusActivityObserver::SubscribeL(MUsbBusActivityObserver& aObserver)
0
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    {
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        FLOG( _L( "[USBOTGWATCHER]\tCUsbBusActivityObserver::SubscribeL" ) );
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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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parents: 0
diff changeset
   118
        FLOG( _L( "[USBOTGWATCHER]\tCUsbIdPinObserver::SubscribeL Observer already exists." ) );
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parents: 0
diff changeset
   119
        Panic(EObserverAlreadyExists);
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parents: 0
diff changeset
   120
        return;
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parents: 0
diff changeset
   121
        }
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parents: 0
diff changeset
   122
    iObservers.AppendL(&aObserver);
0
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parents:
diff changeset
   123
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   124
    if (KFirst == iObservers.Count()) // first item
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   125
        {
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parents:
diff changeset
   126
        iBusActivity.Subscribe(iStatus);
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parents:
diff changeset
   127
        SetActive();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   128
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   129
        }
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parents:
diff changeset
   130
    }
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parents:
diff changeset
   131
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parents:
diff changeset
   132
// ---------------------------------------------------------------------------
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parents:
diff changeset
   133
// 
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parents:
diff changeset
   134
// ---------------------------------------------------------------------------
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parents:
diff changeset
   135
//
64
8ecef05bbada Revision: 201003
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parents: 0
diff changeset
   136
void CUsbBusActivityObserver::UnsubscribeL(MUsbBusActivityObserver& aObserver)
0
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   137
    {
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   138
        FLOG( _L( "[USBOTGWATCHER]\tCUsbBusActivityObserver::UnsubscribeL" ) );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   139
64
8ecef05bbada Revision: 201003
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parents: 0
diff changeset
   140
    TInt i(iObservers.Find(&aObserver));
8ecef05bbada Revision: 201003
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parents: 0
diff changeset
   141
    if(KErrNotFound == i)
0
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   142
        {
64
8ecef05bbada Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   143
        FLOG( _L( "[USBOTGWATCHER]\tCUsbBusActivityObserver::UnsubscribeL Observer not found." ) );
8ecef05bbada Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   144
        Panic(ECanNotFindIdPinObserver);
0
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   145
        return;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   146
        }
64
8ecef05bbada Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   147
    
8ecef05bbada Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   148
    iObservers.Remove(i);
8ecef05bbada Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   149
    
8ecef05bbada Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   150
    if (0 == iObservers.Count()) // no observers anymore
0
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   151
        {
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   152
        // cancel pending request
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   153
        Cancel();
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   154
        }
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   155
    }
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   156
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   157
// ---------------------------------------------------------------------------
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   158
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   159
// ---------------------------------------------------------------------------
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   160
//
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   161
void CUsbBusActivityObserver::RunL()
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   162
    {
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   163
        FTRACE( FPrint(_L( "[USBOTGWATCHER]\tCUsbBusActivityObserver::RunL iStatus = %d" ), iStatus.Int()));
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   164
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   165
    // if error occured, inform observers
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   166
    if(KErrNone != iStatus.Int())
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   167
        {
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   168
        for (TInt i(0); i < iObservers.Count(); ++i)
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   169
                    {
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   170
                    iObservers[i]->BusActivityErrorL(iStatus.Int());
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   171
                    }
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   172
        }
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   173
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   174
    // re-issue request first
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   175
    iBusActivity.Subscribe(iStatus);
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   176
    SetActive();
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   177
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   178
    // then process property change
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   179
    TBusActivity state(BusActivity());
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   180
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   181
    switch (state)
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   182
        {
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   183
        case EBusIdle:
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   184
            {
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   185
                FLOG( _L( "[USBOTGWATCHER]\tCUsbBusActivityObserver::RunL BusIdle" ) );
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   186
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   187
            for (TInt i(0); i < iObservers.Count(); ++i)
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   188
                {
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   189
                iObservers[i]->BusIdleL();
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   190
                }
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   191
            break;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   192
            }
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   193
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   194
        case EBusActive:
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   195
            {
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   196
                FLOG( _L( "[USBOTGWATCHER]\tCUsbBusActivityObserver::RunL BusActive" ) );
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   197
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   198
            for (TInt i(0); i < iObservers.Count(); ++i)
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   199
                {
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   200
                iObservers[i]->BusActiveL();
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   201
                }
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   202
            break;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   203
            }
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   204
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   205
        default:
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   206
            {
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   207
                FLOG( _L( "[USBOTGWATCHER]\tCUsbBusActivityObserver::RunL BusActive WrongBusState" ) );
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   208
            Panic(EWrongBusState);
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   209
            }
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   210
        }
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   211
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   212
    }
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   213
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   214
// ---------------------------------------------------------------------------
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   215
// 
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   216
// ---------------------------------------------------------------------------
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   217
//
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   218
void CUsbBusActivityObserver::DoCancel()
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   219
    {
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   220
    iBusActivity.Cancel();
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   221
    }
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   222
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   223
// ---------------------------------------------------------------------------
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   224
// 
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   225
// ---------------------------------------------------------------------------
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   226
//
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   227
TInt CUsbBusActivityObserver::RunError(TInt aError)
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   228
    {
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   229
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   230
    FTRACE( FPrint(_L( "[USBOTGWATCHER]\tCUsbBusActivityObserver::RunError aError = %d" ), aError));
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   231
                  
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   232
    // try to continue	
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   233
    return KErrNone;
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   234
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   235
    }
1e05558e2206 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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