1 /*

     2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 #ifndef C_USBVBUSOBSERVER_H

    19 #define C_USBVBUSOBSERVER_H

    20 

    21 #include <e32base.h>

    22 

    23 #include <StifTestModule.h>

    24 #include <StifLogger.h>

    25 

    26 #include "tassertbase.h"

    27 

    28 class RUsb;

    29 

    30 class MUsbVBusObserver

    31     {

    32 public:

    33 

    34     void virtual VBusDownL() = 0;

    35     void virtual VBusUpL() = 0;

    36 

    37     };

    38 

    39 /**

    40  *  Class observes VBUS property

    41  *

    42  *  @lib ?library

    43  *  @since S60 ?S60_version *** for example, S60 v3.0

    44  */

    45 class CUsbVBusObserver : public TAssertBase

    46     {

    47     friend class CtUsbOtgWatcher;

    48     friend class CUsbOtgWatcherTest;

    49 

    50 public:

    51     enum TState

    52         {

    53         EVBusDown = 0,

    54         EVBusUp = 1

    55         };

    56 

    57     /**

    58      * Two-phased constructor.

    59      * @param ?arg1 ?description

    60      * @param ?arg2 ?description

    61      */

    62     //    ?IMPORT_C 

    63     static CUsbVBusObserver* NewL();

    64 

    65     /**

    66      * Destructor.

    67      */

    68     virtual ~CUsbVBusObserver();

    69 

    70     /**

    71      * ?description

    72      *

    73      * @since S60 ?S60_version

    74      * @param ?arg1 ?description

    75      * @param ?arg2 ?description

    76      * @return ?description

    77      */

    78     //    ?IMPORT_C 

    79     TState VBus() /* const! read comment in impl*/;

    80 

    81     /**

    82      * ?description

    83      *

    84      * @since S60 ?S60_version

    85      * @param ?arg1 ?description

    86      * @param ?arg2 ?description

    87      * @return ?description

    88      */

    89 

    90     void SubscribeL(MUsbVBusObserver&);

    91 

    92     void UnsubscribeL(MUsbVBusObserver&);

    93 

    94     void SetRUsb(RUsb* aRUsb);

    95     

    96     void TriggerVBusUpL();

    97     

    98     void TriggerVBusDownL();

    99 private:

   100 

   101     CUsbVBusObserver();

   102 

   103     void ConstructL();

   104 

   105 private:

   106     // data

   107     RUsb* iUsb;

   108 

   109     // The observer reports state changes to own observers

   110     // Own

   111     MUsbVBusObserver* iObserver;

   112 

   113     };

   114 

   115 #endif //  C_USBVBUSOBSERVER_H