1 /*

     2 * Copyright (c) 1997-2009 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 #include <e32std.h>

    19 #include <d32usbc.h>

    20 #include "ActiveReader.h"

    21 #include "AcmConstants.h"

    22 #include "AcmPanic.h"

    23 #include "ReadObserver.h"

    24 #include "AcmUtils.h"

    25 #include <usb/usblogger.h>

    26 

    27 #ifdef __FLOG_ACTIVE

    28 _LIT8(KLogComponent, "ECACM");

    29 #endif

    30 

    31 CActiveReader::CActiveReader(MReadObserver& aParent, RDevUsbcClient& aLdd, TEndpointNumber aEndpoint)

    32  :	CActive(KEcacmAOPriority), 

    33 	iParent(aParent),

    34 	iLdd(aLdd),

    35 	iEndpoint(aEndpoint)

    36 /**

    37  * Constructor.

    38  *

    39  * @param aParent The object that will be notified when read requests 

    40  * complete.

    41  * @param aLdd The LDD handle to be used for posting read requests.

    42  * @param aEndpoint The endpoint to read from.

    43  */

    44 	{

    45 	CActiveScheduler::Add(this);

    46 	}

    47 

    48 CActiveReader::~CActiveReader()

    49 /**

    50  * Destructor.

    51  */

    52 	{

    53 	LOG_FUNC

    54 

    55 	Cancel();

    56 	}

    57 

    58 CActiveReader* CActiveReader::NewL(MReadObserver& aParent, 

    59 								   RDevUsbcClient& aLdd,

    60 								   TEndpointNumber aEndpoint)

    61 /**

    62  * Standard two phase constructor.

    63  *

    64  * @param aParent The object that will be notified when read requests 

    65  * complete.

    66  * @param aLdd The LDD handle to be used for posting read requests.

    67  * @param aEndpoint The endpoint to read from.

    68  * @return Ownership of a new CActiveReader object.

    69  */

    70 	{

    71 	LOG_STATIC_FUNC_ENTRY

    72 

    73 	CActiveReader* self = new(ELeave) CActiveReader(aParent, aLdd, aEndpoint);

    74 	return self;

    75 	}

    76 

    77 void CActiveReader::Read(TDes8& aDes, TInt aLen)

    78 /**

    79  * Read the given length of data from the LDD.

    80  *

    81  * @param aDes A descriptor into which to read.

    82  * @param aLen The length to read.

    83  */

    84 	{

    85 	LOG_FUNC

    86 

    87 	iLdd.Read(iStatus, iEndpoint, aDes, aLen); 

    88 	SetActive();

    89 	}

    90 

    91 void CActiveReader::DoCancel()

    92 /**

    93  * Cancel an outstanding read.

    94  */

    95 	{

    96 	LOG_FUNC

    97 

    98 	iLdd.ReadCancel(iEndpoint);

    99 	}

   100 

   101 void CActiveReader::RunL()

   102 /**

   103  * This function will be called when the read completes. It notifies the 

   104  * parent class of the completion.

   105  */

   106 	{

   107 	LOG_LINE

   108 	LOGTEXT2(_L8(">>CActiveReader::RunL iStatus=%d"), iStatus.Int());

   109 

   110 	iParent.ReadCompleted(iStatus.Int());

   111 

   112 	LOGTEXT(_L8("<<CActiveReader::RunL"));

   113 	}

   114 

   115 //

   116 // End of file