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os/kernelhwsrv/userlibandfileserver/fileserver/shostmassstorage/server/transport/cusbifacehandler.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution. 
     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 #include <e32base.h>

    22 #include <d32usbdi_hubdriver.h>

    23 #include <d32usbdi.h>

    24 #include <d32otgdi.h>

    25 #include <d32usbdescriptors.h>

    26 #include <d32usbtransfers.h>

    27 #include "botmsctypes.h"

    28 #include "msctypes.h"

    29 #include "mtransport.h"

    30 #include "mprotocol.h"

    31 #include "cusbifacehandler.h"

    32 #include "cbulkonlytransport.h"

    33 #include "debug.h"

    34 #include "msdebug.h"

    35 

    36 CUsbInterfaceHandler* CUsbInterfaceHandler::NewL(RUsbInterface &aInterface)

    37 	{

    38 	return new (ELeave) CUsbInterfaceHandler(aInterface);

    39 	}

    40 

    41 CUsbInterfaceHandler::CUsbInterfaceHandler(RUsbInterface &aInterface)

    42 :	CActive(EPriorityStandard),

    43 	iInterface(aInterface)

    44 	{

    45     __MSFNLOG

    46 	CActiveScheduler::Add(this);

    47 	}

    48 

    49 CUsbInterfaceHandler::~CUsbInterfaceHandler()

    50 	{

    51     __MSFNLOG

    52 	if (iState != ENone)

    53 		{

    54 		iState = ENone;

    55 		iBotGetMaxLun.Complete(KErrCancel);

    56 		Cancel();

    57 		}

    58 	}

    59 

    60 /**

    61 Cancellation of outstanding request

    62 */

    63 void CUsbInterfaceHandler::DoCancel()

    64 	{

    65     __MSFNLOG

    66 	}

    67 

    68 /**

    69 Completion of USB transport request.

    70 */

    71 void CUsbInterfaceHandler::RunL()

    72     {

    73     __MSFNLOG

    74 	TInt error = iStatus.Int();

    75 

    76 	if (error == KErrUsbStalled && iState == EGetMaxLun)

    77         {

    78 		__BOTPRINT(_L("...KErrUsbStalled"));

    79 		iState = EReset;

    80 		Reset();

    81 		return;

    82         }

    83 

    84 	if (error == KErrNone)

    85         {

    86 		__BOTPRINT(_L("...KErrNone"));

    87 

    88 		if (iState == EGetMaxLun)

    89             {

    90 			__BOTPRINT(_L("...sending GetMaxLun response"));

    91 			*ipGetMaxLun = iBuffer[0];

    92             }

    93 		else

    94             {

    95 			__BOTPRINT(_L("...defaulting to 0"));

    96 			*ipGetMaxLun = 0;

    97             }

    98         }

    99     else

   100         {

   101         __BOTPRINT(_L("...completeing with KErrGeneral"));

   102         error = KErrGeneral;

   103         }

   104 

   105     iState = ENone;

   106 	iBotGetMaxLun.Complete(error);

   107     }

   108 

   109 

   110 void CUsbInterfaceHandler::GetMaxLun(TLun* aMaxLun, const RMessage2& aMessage)

   111 	{

   112     __MSFNLOG

   113 

   114 	/* Send the Get max lun command in the ep0 */

   115 	RUsbInterface::TUsbTransferRequestDetails reqDetails;

   116 	_LIT8(KNullDesC8,"");

   117 	iBotGetMaxLun = aMessage;

   118 	iState = EGetMaxLun;

   119 	ipGetMaxLun = aMaxLun;

   120 

   121 	reqDetails.iRequestType = 0xA1;

   122 	reqDetails.iRequest = 0xFE;

   123 	reqDetails.iValue = 0x0000;

   124 	reqDetails.iIndex = 0x0000;

   125 	reqDetails.iFlags = 0x04;		// Short transfer OK

   126 

   127 	iBuffer.SetLength(1);

   128 	iInterface.Ep0Transfer(reqDetails, KNullDesC8, iBuffer, iStatus);

   129 	SetActive();

   130 	}

   131 

   132 

   133 void CUsbInterfaceHandler::Reset()

   134 	{

   135     __MSFNLOG

   136 	RUsbInterface::TUsbTransferRequestDetails reqDetails;

   137 	_LIT8(KNullDesC8,"");

   138 

   139 	reqDetails.iRequestType = 0x21;

   140 	reqDetails.iRequest = 0xFF;

   141 	reqDetails.iValue = 0x0000;

   142 	reqDetails.iIndex = 0x0000;

   143 	reqDetails.iFlags = 0x04;		// Short transfer OK

   144 

   145 	iInterface.Ep0Transfer(reqDetails, KNullDesC8, (TDes8 &) KNullDesC8, iStatus);

   146     SetActive();

   147 	}
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