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os/kernelhwsrv/userlibandfileserver/fileserver/smassstorage/cactivedevicestatenotifierbase.cpp
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib. 
     1 /*

     2 * Copyright (c) 2004-2009 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 the License "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 * Class definition for Device State Notifier Base Class

    16 *

    17 */

    18 

    19 

    20 /** 

    21  @file

    22  @internalTechnology

    23 */

    24 

    25 #include <e32base.h>

    26 

    27 #include "cactivedevicestatenotifierbase.h"

    28 

    29 CActiveDeviceStateNotifierBase::CActiveDeviceStateNotifierBase(CBulkOnlyTransport& aBot,

    30                                                                MLddDeviceStateNotification& aLddDeviceStateNotification)

    31 /**

    32  *

    33  */

    34 	: CActive(EPriorityStandard),

    35 	  iBot(aBot),

    36       iLddDeviceStateNotification(aLddDeviceStateNotification),

    37 	  iDeviceState(EUsbcNoState),

    38 	  iOldDeviceState(EUsbcNoState)

    39 	{

    40 

    41 	}

    42 

    43 

    44 CActiveDeviceStateNotifierBase* CActiveDeviceStateNotifierBase::NewL(CBulkOnlyTransport& aBot,

    45                                                                      MLddDeviceStateNotification& aLddDeviceStateNotification)

    46 /**

    47  *

    48  */

    49 	{

    50 	CActiveDeviceStateNotifierBase* self = new (ELeave) CActiveDeviceStateNotifierBase(aBot, aLddDeviceStateNotification);

    51 	CleanupStack::PushL(self);

    52 	self->ConstructL();

    53 	CActiveScheduler::Add(self);

    54 	CleanupStack::Pop();									// self

    55 	return (self);

    56 	}

    57 

    58 

    59 void CActiveDeviceStateNotifierBase::ConstructL()

    60 /**

    61  *

    62  */

    63 	{

    64 	__FNLOG("CActiveDeviceStateNotifierBase::ConstructL");

    65 	}

    66 

    67 

    68 CActiveDeviceStateNotifierBase::~CActiveDeviceStateNotifierBase()

    69 /**

    70  *

    71  */

    72 	{

    73 	__PRINT(_L("CActiveDeviceStateNotifierBase::~CActiveDeviceStateNotifierBase()"));

    74 	Cancel();												// base class

    75 	}

    76 

    77 

    78 void CActiveDeviceStateNotifierBase::DoCancel()

    79 /**

    80  *

    81  */

    82 	{

    83 	__PRINT(_L("CActiveDeviceStateNotifierBase::DoCancel()"));

    84 	iLddDeviceStateNotification.Cancel();

    85 	}

    86 

    87 

    88 void CActiveDeviceStateNotifierBase::RunL()

    89 /**

    90  *

    91  */

    92 	{

    93 	__FNLOG("CActiveDeviceStateNotifierBase::RunL");

    94 	// This displays the device state.

    95 	// In a real world program, the user could take here appropriate action (cancel a

    96 	// transfer request or whatever).

    97     __PRINT1(_L("DeviceState Notification = %d"), iDeviceState);

    98 

    99 	if (!(iDeviceState & KUsbAlternateSetting))

   100 		{

   101 		switch (iDeviceState)

   102 			{

   103         case EUsbcDeviceStateUndefined:			//0

   104         case EUsbcDeviceStateDefault:			//3

   105 			iBot.HwStop();

   106 			break;

   107 

   108 		case EUsbcDeviceStateAttached:			//1

   109 		case EUsbcDeviceStatePowered:			//2

   110             // do nothing

   111             break;

   112 

   113         case EUsbcDeviceStateAddress:			//4

   114 			if (iOldDeviceState == EUsbcDeviceStateConfigured)

   115                 {

   116                 iBot.StopBulkOnlyEndpoint();

   117                 }

   118 			break;

   119 

   120 		case EUsbcDeviceStateConfigured:		//5

   121 			if (iOldDeviceState == EUsbcDeviceStateSuspended)

   122 				{

   123 				iBot.HwResume();

   124 				}

   125 			else

   126 				{

   127 				iBot.HwStart();

   128 				}

   129 			break;

   130 		case EUsbcDeviceStateSuspended:			//6

   131 			if (iOldDeviceState == EUsbcDeviceStateConfigured)

   132 				{

   133 				iBot.HwSuspend();

   134 				}

   135 			break;

   136 		default:

   137 			__PRINT(_L("Device State notifier: ***BAD***\n"));

   138 			iBot.HwStop();

   139 			break;

   140 			}

   141 		iOldDeviceState = iDeviceState;

   142 		}

   143 	else if (iDeviceState & KUsbAlternateSetting)

   144 		{

   145 		__PRINT1(_L("Device State notifier: Alternate interface setting has changed: now %d\n"), iDeviceState & ~KUsbAlternateSetting);

   146 		}

   147 	Activate();

   148 	}

   149 

   150 

   151 void CActiveDeviceStateNotifierBase::Activate()

   152 /**

   153  *

   154  */

   155 	{

   156 	__FNLOG("CActiveDeviceStateNotifierBase::Activate");

   157 	if (IsActive())

   158 		{

   159 		__PRINT(_L("Still active\n"));

   160 		return;

   161 		}

   162 	iLddDeviceStateNotification.Activate(iStatus, iDeviceState);

   163 	SetActive();

   164 	}

   165 

   166 

   167 

   168
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