/*

* Copyright (c) 2002 - 2006 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:  Implements OBEX class controller

*

*/

#include "CUsbObexClassController.h"

#include <usb_std.h>

#include <obex.h>

#include <SrcsInterface.h>

#include <mmf/common/mmfcontrollerpluginresolver.h> //for CleanupResetAndDestroyPushL

// Panic category only used in debug builds

#ifdef _DEBUG

_LIT( KObexCcPanicCategory, "OBEXCC" );

#endif

#ifdef __FLOG_ACTIVE

_LIT8(KLogComponent, "UsbObexCc");

#endif

/**

 * Panic codes for the USB OBEX Class Controller.

 */

enum TObexCCPanic

  {

  /** Illigal calling of asynchronous function */

  EBadAsynchronousCall = 0,

  /** Start() called while in an illegal state */

  EBadApiCallStart = 1,

  /** Stop() called while in an illegal state */

  EBadApiCallStop = 2,

  };

// ---------------------------------------------------------------------------

// Constructs a CUsbObexClassController object.

// ---------------------------------------------------------------------------

//

CUsbObexClassController* CUsbObexClassController::NewL(

  MUsbClassControllerNotify& aOwner)

  {

  LOG_STATIC_FUNC_ENTRY

  CUsbObexClassController* self = new (ELeave) CUsbObexClassController(aOwner);

  CleanupStack::PushL(self);

  self->ConstructL();

  CleanupStack::Pop(self);

  return self;

  }

// ---------------------------------------------------------------------------

// Constructor

// ---------------------------------------------------------------------------

//

CUsbObexClassController::CUsbObexClassController(

    MUsbClassControllerNotify& aOwner)

  : CUsbClassControllerPlugIn(aOwner, KObexClassPriority)

  {

  LOG_FUNC

  iState = EUsbServiceIdle;

  }

// ---------------------------------------------------------------------------

// Method to perform second phase construction.

// ---------------------------------------------------------------------------

//

void CUsbObexClassController::ConstructL()

  {

  LOG_FUNC

  iObexSM = CObexUSB::NewL();

  }

// ---------------------------------------------------------------------------

// From class CUsbClassControllerPlugIn.

// Destructor

// ---------------------------------------------------------------------------

//

CUsbObexClassController::~CUsbObexClassController()

  {

  LOG_FUNC

  Cancel();

  delete iObexSM; 

  }

// ---------------------------------------------------------------------------

// From class CUsbClassControllerPlugIn.

// Called by UsbMan to start this class.

// ---------------------------------------------------------------------------

//

void CUsbObexClassController::Start(TRequestStatus& aStatus)

  {

  LOG_FUNC

  //Start() should never be called if started, starting or stopping (or in state EUsbServiceFatalError)

  __ASSERT_DEBUG(iState == EUsbServiceIdle, _USB_PANIC(KObexCcPanicCategory, EBadApiCallStart));

  // Start OBEX SM

  iRequestStatus = &aStatus;

  iState = EUsbServiceStarting;

  aStatus = KRequestPending;

  LOGTEXT(_L8("CUsbObexClassController::Start() calling ManageUSBService(ETrue)")); 

  iObexSM->ManageUSBServices(ETrue, iStatus);

  SetActive();

  }

// ---------------------------------------------------------------------------

// From class CUsbClassControllerPlugIn.

// Called by UsbMan to stop this class.

// ---------------------------------------------------------------------------

//

void CUsbObexClassController::Stop(TRequestStatus& aStatus)

  {

  LOG_FUNC

  LOGTEXT2(_L8("CUsbObexClassController::Stop iState = %d"), iState);

  //Stop() should never be called if stopping or starting (or in state EUsbServiceFatalError)

  __ASSERT_DEBUG(iState == EUsbServiceStarted || iState == EUsbServiceIdle, _USB_PANIC(KObexCcPanicCategory, EBadApiCallStop));

  //state may be idle after Cancel

  if ( iState == EUsbServiceIdle )

    {

    TRequestStatus* status = &aStatus;

    User::RequestComplete(status, KErrNone);

    }

  else

    {

    // Stop OBEX SM

    iRequestStatus = &aStatus;

    iState = EUsbServiceStopping;   

    aStatus = KRequestPending;

    LOGTEXT(_L8("CUsbObexClassController::Stop() calling ManageUSBService(EFalse)")); 

    iObexSM->ManageUSBServices(EFalse, iStatus);

    SetActive();

    }

  }

// ---------------------------------------------------------------------------

// From class CActive.

// ---------------------------------------------------------------------------

//

void CUsbObexClassController::RunL()

  {

  LOG_FUNC

  if (iStatus != KErrNone)

    {

    LOGTEXT2(_L8("CUsbObexClassController::RunL() Error = %d"), iStatus.Int());

    User::RequestComplete(iRequestStatus, iStatus.Int());

    return;

    }

  LOGTEXT2(_L8("CUsbObexClassController::RunL() State is %d"), iState);

            switch (iState)

                {

                case EUsbServiceStarting:

                    iState = EUsbServiceStarted;

                    User::RequestComplete(iRequestStatus, KErrNone);

                    break;

                case EUsbServiceStopping:

                    iState = EUsbServiceIdle;

                    User::RequestComplete(iRequestStatus, KErrNone);

                    break;

                case EUsbServiceStarted:

                case EUsbServiceIdle:

                default:

            LOGTEXT(_L8("CUsbObexClassController::RunL() Error or Unknown State"));

                    break;

                }

  }

// ---------------------------------------------------------------------------

// From class CUsbClassControllerPlugIn.

// Returns information about the interfaces supported by this class.

// ---------------------------------------------------------------------------

//

void CUsbObexClassController::GetDescriptorInfo(TUsbDescriptor& aDescriptorInfo) const

  {

  LOG_FUNC

  TRAPD(ret, DoGetDescriptorInfoL(aDescriptorInfo));

        if(ret!=KErrNone)

          {

                 LOGTEXT2(_L8("CUsbObexClassController::GetDescriptorInfo leave with code: %d"), ret);

          }

        }

// ---------------------------------------------------------------------------

// Leave version of GetDescriptor info function for fit in Class Controller framework.

// Returns information about the interfaces supported by this class.

// ---------------------------------------------------------------------------

//

void CUsbObexClassController::DoGetDescriptorInfoL(TUsbDescriptor& aDescriptorInfo) const

  {

  LOG_FUNC

        RImplInfoPtrArray implInfoArray;

        CleanupResetAndDestroyPushL(implInfoArray);

        TEComResolverParams resolverParams;

        resolverParams.SetDataType(KSrcsTransportUSB);

        resolverParams.SetWildcardMatch(EFalse);

        REComSession::ListImplementationsL(KCSrcsInterfaceUid, resolverParams, implInfoArray);

        LOGTEXT2(_L8("CUsbObexClassController::DoGetDescriptorInfoL Number of Interfaces is %d"),

                   implInfoArray.Count());

        aDescriptorInfo.iNumInterfaces = (implInfoArray.Count())*KObexNumInterfaces;

        aDescriptorInfo.iLength = 0;

        CleanupStack::PopAndDestroy(&implInfoArray);    

        }

// ---------------------------------------------------------------------------

// From class CActive.

// Will only be called when an asynchronous request is currently active.

// ---------------------------------------------------------------------------

//

void CUsbObexClassController::DoCancel()

  {

  LOG_FUNC

  switch (iState)

    {

    case EUsbServiceStarting:

    case EUsbServiceStopping:

      iObexSM->CancelManageUSBServices();

      break;

    default:

      __ASSERT_DEBUG( EFalse, _USB_PANIC(KObexCcPanicCategory, EBadAsynchronousCall) );

      break;

    }

  iState = EUsbServiceIdle;        

  User::RequestComplete(iRequestStatus, KErrCancel);                  

  }

// ---------------------------------------------------------------------------

// From class CActive.

// Should return KErrNone to avoid an active scheduler panic. This function

// should never be called as there is another mechanism for catching errors.

// ---------------------------------------------------------------------------

//

TInt CUsbObexClassController::RunError(TInt aError)

  {

  LOG_FUNC

  LOGTEXT2(_L8("CUsbObexClassController::RunError aError=%d"), aError);

  return KErrNone;

  }

// End of File