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 /**

    19 @file

    20 @internalComponent

    21 */

    22 

    23 #ifndef NCMDATAINTERFACE_H

    24 #define NCMDATAINTERFACE_H

    25 

    26 #include <e32base.h>

    27 #ifndef __OVER_DUMMYUSBSCLDD__

    28 #include <nifmbuf.h>

    29 #include <networking/ethinter.h>

    30 #include <d32usbcsc.h>

    31 #else

    32 #include <dummyusbsclddapi.h>

    33 #include <usb/testncm/ethinter.h>

    34 #endif

    35 

    36 #include "ncmpktdrvcommon.h"

    37 

    38 class    CNcmDataSender;

    39 class    CNcmDataReceiver;

    40 

    41 /**

    42 The interface to NCM data channel.

    43 */

    44 NONSHARABLE_CLASS(MNcmDataObserver)

    45 {

    46 public:

    47     /**

    48     Process received datagram parsed from NCM.

    49     @param[in]   aPacket, contains the datagram(ethernet frame) to be dealed with.

    50     */

    51     virtual void ProcessReceivedDatagram(RMBufPacket& aPacket) = 0;

    52     /**

    53     Notify the upper layer(TCP/IP stack) to continue to send data.

    54     */

    55     virtual void ResumeSending() = 0;

    56     /**

    57     Notify unrecoverable error in data channel.

    58     */

    59     virtual void DataError(TInt aError) = 0;

    60     /**

    61     Notify the Data Interface's alt-setting changes, which commonly from 0 to 1, or vice versa.

    62     @param[in]   aIfAltSet, the alt-setting number.

    63     */

    64     virtual void HandleAltSetting(TInt aIfAltSet) = 0;

    65 };

    66 

    67 /**

    68 Maintain the logic of Ncm data channel

    69 */

    70 NONSHARABLE_CLASS(CNcmDataInterface) : public CActive

    71     {

    72 public:

    73     static CNcmDataInterface* NewL(MNcmDataObserver& aEngine, RDevUsbcScClient& aLdd);

    74     ~CNcmDataInterface();

    75 

    76     inline TBool IsStarted() const;

    77     void Start();

    78     void Stop();

    79     TInt Send(RMBufChain& aPacket);

    80 

    81     TInt GetSpeed(TInt& aSpeed);

    82     TInt GetNtbInputSize(TDes8& aSize);

    83     TInt SetNtbInputSize(TDesC8& aSize);

    84     TInt GetNtbParam(TDes8& aParam);

    85     TInt SetInEpBufferSize(TUint aSize);

    86 

    87     void ActivateLdd();

    88     inline void DataError(TInt aErroCode) const;

    89     inline void ResumeSending() const;

    90     inline void ProcessDatagram(RMBufPacket& aPacket) const;

    91     inline TInt AltSetting() const;

    92 

    93 private:

    94     CNcmDataInterface(MNcmDataObserver& aEngine, RDevUsbcScClient& aLdd);

    95     void ConstructL();

    96 

    97     //From CActive

    98     void RunL();

    99     void DoCancel();

   100 

   101 private:

   102     TBool               iStarted;

   103     CNcmDataSender*     iSender;

   104     CNcmDataReceiver*   iReceiver;

   105     MNcmDataObserver&   iEngine;

   106 

   107     RDevUsbcScClient&   iLdd;

   108     TInt                iAltSetting;

   109     TUint               iIfState;

   110     };

   111 

   112 // inline functions

   113 #include "ncmdatainterface.inl"

   114 

   115 #endif // NCMDATAINTERFACE_H