diff -r 7858bc6ead78 -r 9d8b04ca6939 usbengines/usbotgwatcher/src/cusbstatehostabase.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbengines/usbotgwatcher/src/cusbstatehostabase.cpp	Fri Jun 04 10:27:39 2010 +0100
@@ -0,0 +1,282 @@
+/*
+ * Copyright (c) 2008 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:  Implementation
+ *
+ */
+
+#include <e32base.h> 
+#include <usbhosterrors.h>
+#include <d32otgdi_errors.h>
+#include <d32usbdi_errors.h>
+
+#include "cusbotgwatcher.h"
+#include "cusbstatehostabase.h"
+#include "cusbstatehosthandledropping.h"
+
+#include "errors.h"
+
+#include "debug.h"
+#include "panic.h"
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+CUsbStateHostABase::CUsbStateHostABase(CUsbOtgWatcher& aWatcher) :
+    CUsbState(aWatcher)
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CUsbStateHostABase::ConstructL()
+    {
+    LOG_FUNC
+    CUsbState::ConstructL();
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+CUsbStateHostABase::~CUsbStateHostABase()
+    {
+    LOG_FUNC
+    }
+
+// From VBus observer
+// ---------------------------------------------------------------------------
+// VBus can be dropped by lower leyer in case of a critical problem
+// ---------------------------------------------------------------------------
+//
+void CUsbStateHostABase::VBusDownL()
+    {
+    LOG_FUNC
+    HandleL(EUsbWatcherErrorInConnection, EUsbStateHostHandleDropping);
+    }
+
+// From OTG state observer
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+void CUsbStateHostABase::AIdleL()
+    {
+    LOG_FUNC
+    // do nothing
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CUsbStateHostABase::AHostL()
+    {
+    LOG_FUNC
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CUsbStateHostABase::APeripheralL()
+    {
+    LOG_FUNC
+    ChangeHostStateL( EUsbStateHostAPeripheral);
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CUsbStateHostABase::AVBusErrorL()
+    {
+    LOG_FUNC
+    // No need to handle BusClearError error code, due to Bus will be dropped anyway
+    iWatcher.Usb().BusClearError();
+    HandleL(EUsbWatcherErrDeviceRequiresTooMuchPower,
+            EUsbStateHostHandleDropping);
+    }
+
+// From bus activity observer
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CUsbStateHostABase::BusIdleL()
+    {
+    LOG_FUNC
+    //do nothing
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CUsbStateHostABase::BusActiveL()
+    {
+    LOG_FUNC
+    // do nothing
+    }
+
+// From message notification observer
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CUsbStateHostABase::MessageNotificationReceivedL(TInt aMessage)
+    {
+    LOG_FUNC
+    LOG1( "aMessage = %d" , aMessage);
+
+    switch (aMessage)
+        {
+
+        // OTGDI
+        case KErrUsbOtgStackNotStarted://            = -6680;
+        case KErrUsbOtgHnpNotResponding://           = -6683;
+        case KErrUsbOtgBusControlProblem://          = -6685;
+        case KErrUsbOtgVbusPowerUpError://           = -6686;
+        case KErrUsbOtgHnpEnableProblem://           = -6687;
+        case KErrUsbOtgVbusError://                  = -6690;
+
+            // hosterrors.h
+        case KErrUsbConfigurationHasNoInterfaces:
+        case KErrUsbInterfaceCountMismatch:
+        case KErrUsbDuplicateInterfaceNumbers:
+        case KErrUsbBadDescriptor:
+        case KErrUsbDeviceDetachedDuringDriverLoading:
+        case KErrUsbAttachmentFailureGeneralError:
+            {
+            LOG( "ErrorInConnection" );
+            HandleL(EUsbWatcherErrorInConnection, EUsbStateHostHandleDropping);
+            break;
+            }
+
+            // OTGDI
+        case KErrUsbOtgPeriphNotSupported: //        = -6688, for OPT only
+
+            // USBDI
+        case KErrUsbRequestsPending:
+        case KErrUsbBadAddress:
+        case KErrUsbNoAddress:
+        case KErrUsbSetAddrFailed:
+        case KErrUsbNoPower:
+        case KErrUsbTooDeep:
+        case KErrUsbIOError:
+        case KErrUsbNotConfigured:
+        case KErrUsbTimeout:
+        case KErrUsbStalled:
+        case KErrUsbTestFailure:
+        case KErrUsbBadState:
+        case KErrUsbDeviceSuspended:
+        case KErrUsbBadDescriptorTopology:
+        case KErrUsbDeviceRejected:
+        case KErrUsbDeviceFailed:
+        case KErrUsbBadDevice: // = -6656
+        case KErrUsbBadHub:
+        case KErrUsbEventOverflow:
+        case KErrUsbBadDeviceAttached:
+
+            // hosterrors.h
+        case KErrUsbUnsupportedDevice:
+            {
+            LOG( "UnsupportedDevice" );
+            HandleL(EUsbWatcherErrUnsupportedDevice,
+                    EUsbStateHostHandleDropping);
+            break;
+            }
+        default:
+            {
+            LOG1( "Unhandled message = %d" , aMessage);
+            break;
+            }
+
+        }
+
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CUsbStateHostABase::BadHubPositionL()
+    {
+    LOG_FUNC
+    HandleL(EUsbWatcherHubsNotSupported, EUsbStateHostHandleDropping);
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CUsbStateHostABase::VBusErrorL()
+    {
+    LOG_FUNC
+    // No error code handling after BusClearError call, due to bus will be dropped anyway
+    iWatcher.Usb().BusClearError();
+    HandleL(EUsbWatcherErrDeviceRequiresTooMuchPower,
+            EUsbStateHostHandleDropping);
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CUsbStateHostABase::SrpReceivedL()
+    {
+    LOG_FUNC
+
+    if (iWatcher.VBusObserver()->VBus() == CUsbVBusObserver::EVBusUp)
+        {
+        LOG( "Session is ongoing (VBus high); ignore SRP request." );
+        return;
+        }
+
+    TInt err = iWatcher.Usb().BusRespondSrp();
+    LOG1( "BusRespondSrp() error = %d" , err );
+
+    if (KErrNone != err && KErrUsbOtgVbusAlreadyRaised != err)
+        {
+        iWatcher.HandleHostProblemL(EUsbWatcherErrorInConnection,
+                EUsbStateHostHandleDropping);
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CUsbStateHostABase::SessionRequestedL()
+    {
+    LOG_FUNC
+
+    if (iWatcher.VBusObserver()->VBus() == CUsbVBusObserver::EVBusUp)
+        {
+        // session already ongoing; BusRequest() in this case returns KErrUsbOtgBadState...
+        LOG( "Session is ongoing (VBus high); ignore Session Request." );
+        return;
+        }
+
+    TInt err = iWatcher.Usb().BusRequest();
+    LOG1( "BusRequest() err = %d" , err);
+
+    if (KErrNone != err && KErrUsbOtgVbusAlreadyRaised != err)
+        {
+        iWatcher.HandleHostProblemL(EUsbWatcherErrorInConnection,
+                EUsbStateHostHandleDropping);
+        }
+    }