systemswstubs/examplecommonisc/IscDriver/src/IscDriverExtensionDevice.cpp
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     1 /*
       
     2 * Copyright (c) 2007 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:  Reference implementation for ISC Driver extension
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 // INCLUDE FILES
       
    21 
       
    22 #include "IscDriverExtensionDevice.h"
       
    23 #include "IscChannel.h"
       
    24 #include "IscTrace.h"
       
    25 #include "kern_priv.h"
       
    26 
       
    27 // EXTERNAL DATA STRUCTURES
       
    28 
       
    29 // EXTERNAL FUNCTION PROTOTYPES  
       
    30 
       
    31 // CONSTANTS
       
    32 _LIT( KIscDriverExtensionName,"IscDriverExtension" );
       
    33 _LIT( KIscDriverName,"IscDriver" );
       
    34 
       
    35 // MACROS
       
    36 
       
    37 // LOCAL CONSTANTS AND MACROS
       
    38 
       
    39 // MODULE DATA STRUCTURES
       
    40 
       
    41 // LOCAL FUNCTION PROTOTYPES
       
    42 
       
    43 // FORWARD DECLARATIONS
       
    44 
       
    45 
       
    46 // ============================ MEMBER FUNCTIONS ===============================
       
    47 
       
    48 
       
    49 // -----------------------------------------------------------------------------
       
    50 // DIscDriverExtensionDevice::DIscDriverExtensionDevice
       
    51 // C++ default constructor
       
    52 // ( other items were commented in a header ).
       
    53 // -----------------------------------------------------------------------------
       
    54 //
       
    55 DIscDriverExtensionDevice::DIscDriverExtensionDevice()
       
    56     : iIscDriverDevice( NULL )
       
    57     {
       
    58     C_TRACE( ( _T( "DIscDriverExtensionDevice::DIscDriverExtensionDevice()" ) ) );
       
    59     iParseMask |= KDeviceAllowUnit;
       
    60     iParseMask |= KDeviceAllowInfo;
       
    61     }
       
    62 
       
    63 // Destructor
       
    64 DIscDriverExtensionDevice::~DIscDriverExtensionDevice()
       
    65     {
       
    66     
       
    67     }
       
    68 
       
    69 
       
    70 // -----------------------------------------------------------------------------
       
    71 // DIscDriverExtensionDevice::Install
       
    72 // Complete the installation of driver
       
    73 // ( other items were commented in a header ).
       
    74 // -----------------------------------------------------------------------------
       
    75 //
       
    76 TInt DIscDriverExtensionDevice::Install()
       
    77     {
       
    78     C_TRACE( ( _T( "DIscDriverExtensionDevice::Install()" ) ) );
       
    79   
       
    80     // Find pointer to ISC Driver.
       
    81     TInt err( KErrNone );
       
    82     DObjectCon* lDevices = Kern::Containers()[ELogicalDevice];
       
    83     TKName driverName;
       
    84 
       
    85     ASSERT_RESET_ALWAYS( lDevices, "IscDriverExtension", EIscLogicalDevicesNotFound );
       
    86 
       
    87     //TInt driverHandle( KErrNone );  // API change in SOS9.2 WK08
       
    88 	TFindHandle driverHandle;
       
    89     err = lDevices->FindByName( driverHandle, KIscDriverName, driverName );
       
    90     if( KErrNone != err )
       
    91         {
       
    92         C_TRACE( ( _T( "DIscDriverExtensionDevice::Install() Pointer to IscDriver not found!" ) ) );
       
    93         ASSERT_RESET_ALWAYS( 0, "IscDriverExtension", EIscDriverNotFound );
       
    94         }
       
    95     iIscDriverDevice = static_cast<DIscDevice*>( lDevices->At( driverHandle ) );
       
    96     ASSERT_RESET_ALWAYS( iIscDriverDevice, "IscDriverExtension", EIscDriverNotFound )
       
    97     return ( SetName( &KIscDriverExtensionName ) );
       
    98     
       
    99     }
       
   100 
       
   101 // -----------------------------------------------------------------------------
       
   102 // DIscDevice::Create
       
   103 // Create a logical channel
       
   104 // ( other items were commented in a header ).
       
   105 // -----------------------------------------------------------------------------
       
   106 //
       
   107 TInt DIscDriverExtensionDevice::Create( 
       
   108     DLogicalChannelBase*& aChannel )
       
   109     {
       
   110     aChannel=new DIscChannel( iIscDriverDevice );
       
   111     return aChannel?KErrNone:KErrNoMemory;
       
   112     }
       
   113 
       
   114 // ========================== OTHER EXPORTED FUNCTIONS =========================
       
   115 // -----------------------------------------------------------------------------
       
   116 // E32Dll
       
   117 // Epoc Kernel Architecture 2 style entry point
       
   118 // ( other items were commented in a header ).
       
   119 // -----------------------------------------------------------------------------
       
   120 //
       
   121 DECLARE_STANDARD_LDD()
       
   122     {
       
   123     DLogicalDevice* device = new DIscDriverExtensionDevice;
       
   124     ASSERT_RESET_ALWAYS( device,"IscDriverExtension",EIscPanicCreateLogicalDevice );
       
   125     return device;
       
   126     
       
   127     }
       
   128 
       
   129 //  End of File