harvester/monitorplugins/mmcplugin/src/mmcusbao.cpp
changeset 0 c53acadfccc6
child 48 1389872e7c51
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/harvester/monitorplugins/mmcplugin/src/mmcusbao.cpp	Mon Jan 18 20:34:07 2010 +0200
@@ -0,0 +1,266 @@
+/*
+* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Monitors Usb insertions and removals.*
+*/
+
+
+#include <usbmsshared.h>
+
+#include "harvesterlog.h"
+#include "harvestercommon.h"
+#include "mmcusbao.h"
+#include "mmcmonitorplugin.h"
+
+CMMCUsbAO* CMMCUsbAO::NewL()
+    {
+    WRITELOG( "CMMCUsbAO::NewL" );
+    
+    CMMCUsbAO* self = new (ELeave) CMMCUsbAO();
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+CMMCUsbAO::CMMCUsbAO() : CActive( KHarvesterPriorityMonitorPlugin ), iObserver( NULL )
+    {
+    iDrive = 0;
+    iMassStorageMode = EFalse;
+    }
+
+void CMMCUsbAO::ConstructL()
+    {
+    WRITELOG( "CMMCUsbAO::ConstructL" );
+    
+    CActiveScheduler::Add( this );
+    
+    User::LeaveIfError( iFs.Connect() );
+
+    User::LeaveIfError( iDriveState.Attach( 
+    		KUsbMsDriveState_Category, EUsbMsDriveState_DriveStatus ) );
+    }
+
+CMMCUsbAO::~CMMCUsbAO()
+    {
+    WRITELOG( "CMMCUsbAO::~CMMCUsbAO" );
+    StopMonitoring();
+    }
+
+TBool CMMCUsbAO::StartMonitoring( MMMCMonitorObserver& aObserver )
+    {
+    WRITELOG( "CMMCUsbAO::StartMonitoring" );
+    
+    iObserver = &aObserver;
+    
+    return Resume();
+    }
+
+void CMMCUsbAO::StartNotify()
+    {
+    WRITELOG( "CMMCUsbAO::StartNotify" );
+    iDriveState.Subscribe( iStatus );
+    SetActive();
+    }
+
+TBool CMMCUsbAO::StopMonitoring()
+    {
+    WRITELOG( "CMMCUsbAO::StopNotify" );
+    
+    return Pause();
+    }
+
+TBool CMMCUsbAO::Resume()
+    {
+    WRITELOG( "CMMCUsbAO::Resume" );
+        
+    StartNotify();
+    
+    return ETrue;
+    }
+
+TBool CMMCUsbAO::Pause()
+    {
+    WRITELOG( "CMMCUsbAO::Pause" );
+    
+    Cancel();
+    iDriveState.Close();
+    iFs.Close();
+    
+    return ETrue;
+    }
+
+void CMMCUsbAO::RunL()
+    {
+    WRITELOG1( "CMMCUsbAO::RunL iStatus: %d", iStatus.Int() );
+    
+    // check if change to pc-suite mode
+    if ( iStatus.Int() == KErrNotFound )
+        {
+        TChar chr;
+        RFs::DriveToChar( iDrive, chr );
+        iObserver->MountEvent( chr, MediaID(iDrive), EMounted );
+        iMassStorageMode = EFalse;
+        StartNotify();
+        return;
+        }
+    else
+        {
+        User::LeaveIfError( iStatus.Int() );
+        }
+        
+    TUsbMsDrivesStatus allDrivesStatus;
+    const TInt err = iDriveState.Get( allDrivesStatus );
+    
+    if ( err == KErrNone )
+        {
+        WRITELOG1( "CMMCUsbAO::RunL - allDrivesStatus.Length(): %d", allDrivesStatus.Length() );
+        const TInt count = allDrivesStatus.Length()/2;
+        for ( TInt i = 0; i < count; i++ )
+            {
+            TInt driveNumber = allDrivesStatus[2*i];
+            TInt driveStatus = allDrivesStatus[2*i+1];
+            TChar driveChar;
+            RFs::DriveToChar( driveNumber, driveChar );
+#ifdef _DEBUG
+            TFileName* fn = new (ELeave) TFileName( driveChar );
+            _LIT( KIndicator, ":" );
+            fn->Append( KIndicator );
+            WRITELOG1( "CMMCUsbAO::RunL - drive letter: %S", fn );
+            PrintDriveStatus( driveStatus );
+            delete fn;
+            fn = NULL;
+#endif
+            switch( driveStatus )
+                {
+                case EUsbMsDriveState_Connected:
+                    {
+                    if ( iMassStorageMode )
+                        {
+                        break;
+                        }
+                    iObserver->MountEvent( driveChar, MediaID(driveNumber), EDismounted );
+                    iMassStorageMode = ETrue;
+                    iDrive = driveNumber;
+                    }
+                break;
+                
+                case EUsbMsDriveState_Removed:
+                    {
+                    iObserver->MountEvent( driveChar, MediaID(driveNumber), EMounted );
+                    iMassStorageMode = EFalse;
+                    }
+                break;
+                
+                default:
+                	break;
+                }
+            }
+        }
+    else
+        {
+        WRITELOG1( "CMMCUsbAO::RunL - drive state error %d", err );
+        }
+    
+    StartNotify();
+    }
+
+#ifdef _DEBUG
+TInt CMMCUsbAO::RunError( TInt aError )
+#else
+TInt CMMCUsbAO::RunError( TInt )
+#endif
+    {
+    WRITELOG1( "CMMCUsbAO::RunError with error code: %d", aError );
+    
+    StartNotify();
+    return KErrNone;
+    }
+
+void CMMCUsbAO::DoCancel()
+    {
+    WRITELOG( "CMMCUsbAO::DoCancel" );
+    
+    iDriveState.Cancel();
+    }
+
+TUint32 CMMCUsbAO::MediaID( TInt aDrive )
+    {
+    TUint32 uid = 0;
+    TVolumeInfo* vi = NULL;
+    vi = new TVolumeInfo;
+    if ( !vi )
+        {
+        return uid;
+        }
+    
+    const TInt err = iFs.Volume( *vi, aDrive );
+    if ( err == KErrNone )
+        {
+        uid = vi->iUniqueID;
+        }
+
+    delete vi;
+    vi = NULL;
+    
+    return uid;
+    }
+
+#ifdef _DEBUG
+void CMMCUsbAO::PrintDriveStatus( TInt aStatus )
+    {
+    switch( aStatus )
+        {
+        case EUsbMsDriveState_Disconnected:
+        WRITELOG( "CMMCUsbAO::RunL - drive status: EUsbMsDriveState_Disconnected" );
+        break;
+        
+        case EUsbMsDriveState_Connecting:
+        WRITELOG( "CMMCUsbAO::RunL - drive status: EUsbMsDriveState_Connecting" );
+        break;
+        
+        case EUsbMsDriveState_Connected:
+        WRITELOG( "CMMCUsbAO::RunL - drive status: EUsbMsDriveState_Connected" );
+        break;
+        
+        case EUsbMsDriveState_Disconnecting:
+        WRITELOG( "CMMCUsbAO::RunL - drive status: EUsbMsDriveState_Disconnecting" );
+        break;
+        
+        case EUsbMsDriveState_Active:
+        WRITELOG( "CMMCUsbAO::RunL - drive status: EUsbMsDriveState_Active" );
+        break;
+        
+        case EUsbMsDriveState_Locked:
+        WRITELOG( "CMMCUsbAO::RunL - drive status: EUsbMsDriveState_Locked" );
+        break;
+        
+        case EUsbMsDriveState_MediaNotPresent:
+        WRITELOG( "CMMCUsbAO::RunL - drive status: EUsbMsDriveState_MediaNotPresent" );
+        break;
+        
+        case EUsbMsDriveState_Removed:
+        WRITELOG( "CMMCUsbAO::RunL - drive status: EUsbMsDriveState_Removed" );
+        break;
+        
+        case EUsbMsDriveState_Error:
+        WRITELOG( "CMMCUsbAO::RunL - drive status: EUsbMsDriveState_Error" );
+        break;
+        
+        default:
+        WRITELOG( "CMMCUsbAO::RunL - drive status: Unknown" );
+        break;
+        }
+    }
+
+#endif