/*
* Copyright (c) 2008-2009 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:  Implementation
 *
*/


#include <usbuinotif.h>

#include "cusbstatehosthandle.h"
#ifndef STIF
#include "cusbnotifmanager.h"
#else
#include "mockcusbnotifmanager.h"
#endif

#include "errors.h"
#include "debug.h"
#include "panic.h"

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
CUsbStateHostHandle::CUsbStateHostHandle(CUsbOtgWatcher* aWatcher) :
    CUsbState(aWatcher)
    {
    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
CUsbStateHostHandle* CUsbStateHostHandle::NewL(CUsbOtgWatcher* aWatcher)
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostAHost::NewL" ) );

    CUsbStateHostHandle* self = new (ELeave) CUsbStateHostHandle(aWatcher);
    CleanupStack::PushL(self);
    self->ConstructL();
    CleanupStack::Pop(self);
    return self;
    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::ConstructL()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::ConstructL" ) );

    iTooMuchPowerTimer = CUsbTimer::NewL(this, ETooMuchPowerRequiredTimer);

    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
CUsbStateHostHandle::~CUsbStateHostHandle()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::~CUsbStateHostHandle" ) );

    delete iTooMuchPowerTimer;
    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
TUsbStateIds CUsbStateHostHandle::Id()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::Id" ) );

    return EUsbStateHostHandle;
    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::JustAdvancedToThisStateL()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::JustAdvancedToThisStateL" ) );
    iWatcher->PrintStateToLog();

    DoHandleL();
    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::JustBeforeLeavingThisStateL()
    {
    iTooMuchPowerTimer->Cancel();
    iWatcher->NotifManager()->CloseAllNotifiers();
    }
// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::SetWhat(TInt aWhat)
    {
    iWhat = aWhat;
    }

// this means only one wait notifier at a time can be shown by this state
// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::WaitNotifierCompletedL(TInt /*aFeedback*/)
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::WaitNotifierCompletedL" ) );
    switch (iWhat)
        {
        case EUsbWatcherErrDriversNotFound:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::WaitNotifierCompletedL DriversNotFound" ) );
            ChangeHostStateL(EUsbStateHostAInitiate);
            break;
            }
        case EUsbWatcherHubsNotSupported:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::WaitNotifierCompletedL EUsbWatcherHubsNotSupported" ) );
            ChangeHostStateL(EUsbStateHostAInitiate);
            break;
            }
        case EUsbWatcherErrDeviceRequiresTooMuchPower:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::WaitNotifierCompletedL EUsbWatcherErrDeviceRequiresTooMuchPower" ) );
            ChangeHostStateL(EUsbStateHostAInitiate);
            break;
            }
        case EUsbWatcherErrDeviceRequiresTooMuchPowerOnEnumeration:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::WaitNotifierCompletedL EUsbWatcherErrDeviceRequiresTooMuchPowerOnEnumeration" ) );
            ChangeHostStateL(EUsbStateHostAInitiate);
            break;
            }
        case EUsbWatcherErrUnsupportedDevice:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::WaitNotifierCompletedL EUsbWatcherErrUnsupportedDevice" ) );
            ChangeHostStateL(EUsbStateHostAInitiate);
            break;
            }
        case EUsbWatcherConnectedToOTG:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::WaitNotifierCompletedL EUsbWatcherConnectedToOTG" ) );
            ChangeHostStateL(EUsbStateHostAInitiate);
            break;
            }
        case EUsbWatcherErrDandlingCable:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::WaitNotifierCompletedL EUsbWatcherErrDandlingCable" ) );
            ChangeHostStateL(EUsbStateHostAInitiate);
            break;
            }
        case EUsbWatcherNoActivity:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::WaitNotifierCompletedL EUsbWatcherNoActivity" ) );
            ChangeHostStateL(EUsbStateHostAInitiate);
            break;
            }
        case EUsbWatcherErrorInConnection:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::WaitNotifierCompletedL EUsbWatcherErrorInConnection" ) );
            ChangeHostStateL(EUsbStateHostAInitiate);
            break;
            }
        case EUsbWatcherCanNotStartUsbServices:
            {
            FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::WaitNotifierCompletedL EUsbWatcherCanNotStartUsbServices" ) );
            
            break;                     
            }
        // errors from observers mapped to one
        case EUsbWatcherIdPinError:
        case EUsbWatcherVBusObserverError:
        case EUsbWatcherHostEventNotificationError:
        case EUsbWatcherOtgStateError:
        case EUsbWatcherMessageNotificationError:
            {
            // try to restore
            FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::WaitNotifierCompletedL Error in observer" ) );
            ChangeHostStateL(EUsbStateHostAInitiate);
            break;
            }
        default:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::WaitNotifierCompletedL Unexpected situation to be handled" ) );
            Panic(EUnexpectedSituationToHandle);
            break;
            }

        }
    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::DoHandleL()
    {
        FTRACE( FPrint(_L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DoHandleL iWhat = %d" ), iWhat));

    if (iTooMuchPowerTimer)
        iTooMuchPowerTimer->Cancel();

    switch (iWhat)
        {
        case EUsbWatcherErrDriversNotFound:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DoHandleL DriversNotFound" ) );
            // Ignore any errors when calling BusDrop(). Those indicate that VBus already dropped 
            iWatcher->Usb().BusDrop();
            iWatcher->NotifManager()->ShowIndicatorL(EFalse);
            iWatcher->NotifManager()->ShowNotifierL(KUsbUiNotifOtgError,
                    EUsbOtgUnsupportedDevice, this);

            break;
            }
        case EUsbWatcherHubsNotSupported:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DoHandleL EUsbWatcherHubsNotSupported" ) );
            // Ignore any errors when calling BusDrop(). Those indicate that VBus already dropped 
            iWatcher->Usb().BusDrop();
            iWatcher->NotifManager()->ShowIndicatorL(EFalse);
            iWatcher->NotifManager()->ShowNotifierL(KUsbUiNotifOtgError,
                    EUsbOtgHubUnsupported, this);
            break;
            }
        case EUsbWatcherErrDeviceRequiresTooMuchPowerOnEnumeration:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DoHandleL EUsbWatcherErrDeviceRequiresTooMuchPowerOnEnumeration" ) );

            iTooMuchPowerTimer->After(KTimeTooMuchPowerRequired);
            break;
            }
        case EUsbWatcherErrDeviceRequiresTooMuchPower:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DoHandleL EUsbWatcherErrDeviceRequiresTooMuchPower" ) );
            // Ignore any errors when calling BusDrop(). Those indicate that VBus already dropped 
            iWatcher->Usb().BusDrop();
            iWatcher->NotifManager()->ShowIndicatorL(EFalse);
            iWatcher->NotifManager()->ShowNotifierL(KUsbUiNotifOtgError,
                    EUsbOtgTooMuchPower, this);
            break;
            }
        case EUsbWatcherErrUnsupportedDevice:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DoHandleL EUsbWatcherErrUnsupportedDevice" ) );
            // Ignore any errors when calling BusDrop(). Those indicate that VBus already dropped 
            iWatcher->Usb().BusDrop();
            iWatcher->NotifManager()->ShowIndicatorL(EFalse);
            iWatcher->NotifManager()->ShowNotifierL(KUsbUiNotifOtgError,
                    EUsbOtgUnsupportedDevice, this);
            break;
            }
        case EUsbWatcherConnectedToOTG:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DoHandleL EUsbWatcherConnectedToOTG" ) );
                
            // Ignore any errors when calling BusDrop(). Those indicate that VBus already dropped
            iWatcher->Usb().BusDrop();
            iWatcher->NotifManager()->ShowIndicatorL(EFalse);
            iWatcher->NotifManager()->ShowNotifierL(KUsbUiNotifOtgError,
                    EUsbOtgUnsupportedDevice, this);
            break;
            }
        case EUsbWatcherErrDandlingCable:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DoHandleL EUsbWatcherErrDandlingCable" ) );
            // Ignore any errors when calling BusDrop(). Those indicate that VBus already dropped 
            iWatcher->Usb().BusDrop();
            iWatcher->NotifManager()->ShowIndicatorL(EFalse);
            iWatcher->NotifManager()->ShowNotifierL(KUsbUiNotifOtgError,
                    EUsbOtgErrorAttachTimedOut, this);
            break;
            }
        case EUsbWatcherNoActivity:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DoHandleL EUsbWatcherNoActivity" ) );
            // Ignore any errors when calling BusDrop(). Those indicate that VBus already dropped 
            iWatcher->Usb().BusDrop();
            iWatcher->NotifManager()->ShowIndicatorL(EFalse);
            iWatcher->NotifManager()->ShowNotifierL(KUsbUiNotifOtgError,
                    EUsbOtgUnsupportedDevice, this);

            break;
            }
        case EUsbWatcherErrorInConnection:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DoHandleL EUsbWatcherErrorInConnection" ) );
            // Ignore any errors when calling BusDrop(). Those indicate that VBus already dropped 
            iWatcher->Usb().BusDrop();
            iWatcher->NotifManager()->ShowIndicatorL(EFalse);
            iWatcher->NotifManager()->ShowNotifierL(KUsbUiNotifOtgError,
                    EUsbOtgErrorInConnection, this);
            break;
            }
        case EUsbWatcherCanNotStartUsbServices:
            {
            FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DoHandleL EUsbWatcherCanNotStartUsbServices" ) );
            iWatcher->NotifManager()->ShowIndicatorL(EFalse);
            iWatcher->NotifManager()->ShowNotifierL(KUsbUiNotifOtgError,
                EUsbOtgErrorInConnection, this);
            break;           
            }
        // errors from observers mapped to one
        case EUsbWatcherIdPinError:
        case EUsbWatcherVBusObserverError:
        case EUsbWatcherHostEventNotificationError:
        case EUsbWatcherOtgStateError:
        case EUsbWatcherMessageNotificationError:
            {
            FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DoHandleL Error from observer" ) );
        // Ignore any errors when calling BusDrop(). Those indicate that VBus already dropped 
        iWatcher->Usb().BusDrop();
        iWatcher->NotifManager()->ShowIndicatorL(EFalse);
        iWatcher->NotifManager()->ShowNotifierL(KUsbUiNotifOtgError,
                EUsbOtgErrorInConnection, this);
            break;
            }
        default:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::WaitNotifierCompletedL Unexpected situation to be handled" ) );
            Panic(EUnexpectedSituationToHandle);
            break;
            }
        }
    }

/////////////////////////////////////////////////////////////////////////////////////
// just ignore all the events		
// From VBus observer
void CUsbStateHostHandle::VBusDownL()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::VBusDownL" ) );
    }

// From OTG state observer
// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::AIdleL()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::AIdleL" ) );

    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::AHostL()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::AHostL" ) );
    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::APeripheralL()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::APeripheralL" ) );

    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::AVBusErrorL()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::AVBusErrorL" ) );

    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::BIdleL()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::BIdleL" ) );

    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::BPeripheralL()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::BPeripheralL" ) );

    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::BHostL()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::BHostL" ) );

    }

// From bus activity observer
// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::BusIdleL()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::BusIdleL" ) );

    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::BusActiveL()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::BusActiveL" ) );

    }

// From Host Event notification observer
// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::DeviceAttachedL(
        TDeviceEventInformation aDevEventInfo)
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DeviceAttachedL" ) );

    if (iTooMuchPowerTimer->IsActive())
        {
        ChangeHostStateL(EUsbStateHostAInitiate);
        iWatcher->DeviceAttachedL(aDevEventInfo);
        }
    else
        {
            FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DeviceAttachedL Unexpected situation" ) );
        }
    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::DeviceDetachedL(TDeviceEventInformation)
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DeviceDetachedL" ) );

    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::DriverLoadSuccessL(TDeviceEventInformation)
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbState::DriverLoadSuccessL" ) );
    
    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::DriverLoadPartialSuccessL(TDeviceEventInformation)
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbState::DriverLoadPartialSuccessL" ) );
    
    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::DriverLoadFailureL(TDeviceEventInformation)
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbState::DriverLoadFailureL" ) );
    
    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::BadHubPositionL()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::BadHubPositionL" ) );

    if (iTooMuchPowerTimer->IsActive())
        {
        ChangeHostStateL(EUsbStateHostAInitiate);
        iWatcher->BadHubPositionL();
        }
    else
        {
            FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::DeviceAttachedL Unexpected situation" ) );
        }
    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::VBusErrorL()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::VBusErrorL" ) );

    iWatcher->Usb().BusClearError();
    FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::VBusErrorL Unexpected situation" ) );
    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::MessageNotificationReceivedL(TInt)
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::MessageNotificationReceivedL" ) );

    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::SrpReceivedL()
    {
    FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::SrpReceivedL" ) );
        
    if (CUsbVBusObserver::EVBusUp != iWatcher->VBusObserver()->VBus())
        {
        TInt err = iWatcher->Usb().BusRespondSrp();
        if (KErrNone != err)
            {
            FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::SrpReceivedL BusRespondSrp error" ) );
            iWatcher->HandleHostProblemL(EUsbWatcherErrorInConnection);
            }
        else
            {
            ChangeHostStateL(EUsbStateHostAInitiate);
            }
        }

    }

// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::SessionRequestedL()
    {
        FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::SessionRequestedL" ) );

    }

// From TimerObserver
// ---------------------------------------------------------------------------
// 
// ---------------------------------------------------------------------------
//
void CUsbStateHostHandle::TimerElapsedL(TUsbTimerId aTimerId)
    {
    switch (aTimerId)
        {
        case ETooMuchPowerRequiredTimer:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::TimerElapsedL - ETooMuchPowerRequiredTimer" ) );
            iWatcher->Usb().BusDrop();
            iWatcher->NotifManager()->ShowIndicatorL(EFalse);
            iWatcher->NotifManager()->ShowNotifierL(KUsbUiNotifOtgError,
                    EUsbOtgTooMuchPowerRequired, this);
            break;
            }
        default:
            {
                FLOG( _L( "[USBOTGWATCHER]\tCUsbStateHostHandle::TimerElapsedL - Unknown timer" ) );
            Panic(EWrongTimerId);
            }
        }
    }