1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 /**

    17  @file

    18  @internalTechnology

    19 */

    20 

    21 #ifndef CUSBHOSTMSLOGICALUNIT_H

    22 #define CUSBHOSTMSLOGICALUNIT_H

    23 

    24 

    25 class MTransport;

    26 class MProtocol;

    27 

    28 /**

    29 This class represents a Logical Unit supporting SCSI Mass Storage Class. The

    30 class provides inteface methods to read, write and get the media capacity of the

    31 Logical Unit. Each instance is identified by the LUN.

    32 */

    33 class CUsbHostMsLogicalUnit : public CBase

    34 {

    35 public:

    36 	static CUsbHostMsLogicalUnit* NewL(TLun aLun);

    37 	~CUsbHostMsLogicalUnit();

    38 private:

    39     void ConstructL();

    40     CUsbHostMsLogicalUnit(TLun aLun);

    41 

    42 public:

    43 	void InitL();

    44 	void UnInitL();

    45 	void ReadL(const RMessage2& aMessage);

    46 	void WriteL(const RMessage2& aMessage);

    47 	void EraseL(const RMessage2& aMessage);

    48 	void CapsL(const RMessage2& aMessage);

    49 

    50 	void NotifyChange(const RMessage2& aMessage);

    51     void ForceCompleteNotifyChangeL();

    52     void CancelChangeNotifierL();

    53 

    54 	void ReadyToSuspend();

    55 	TBool IsConnected();

    56 	TBool IsReadyToSuspend();

    57 	void CancelReadyToSuspend();

    58 

    59 	void SuspendL();

    60 	void ResumeL();

    61 	void DoLunReadyCheckL();

    62 

    63 	TInt InitialiseProtocolL(TLun aLun,

    64                              THostMassStorageConfig& aConfig,

    65                              MTransport& aTransport);

    66 

    67     TLun Lun() const;

    68 

    69 private:

    70     TInt CheckPosition(const TReadWrite& aReadWrite);

    71 

    72     /** The Protocol interface (Owned by this class) */

    73 	MProtocol* iProtocol;

    74     /** LUN */

    75     TLun iLun;

    76     /** The Size (updated by CapsL) */

    77     TPos iSize;

    78 

    79 	TBool iSuspendRequest;

    80     

    81     RBuf8 iDataBuf;

    82 };

    83 

    84 

    85 /**

    86 Get the LUN

    87 

    88 @return TLun The LUN

    89 */

    90 inline TLun CUsbHostMsLogicalUnit::Lun() const

    91     {

    92     return iLun;

    93     }

    94 

    95 #endif // CUSBHOSTMSLOGICALUNIT_H

    96