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	Signed-off-by: niruiyu Reviewed-by: lgao4 git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11987 6f19259b-4bc3-4df7-8a09-765794883524
		
			
				
	
	
		
			239 lines
		
	
	
		
			9.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			239 lines
		
	
	
		
			9.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /** @file
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|   UEFI Component Name(2) protocol implementation for ConPlatform driver.
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|   
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|   Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>
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|   This program and the accompanying materials                          
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|   are licensed and made available under the terms and conditions of the BSD License         
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|   which accompanies this distribution.  The full text of the license may be found at        
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|   http://opensource.org/licenses/bsd-license.php                                            
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| 
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|   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
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|   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
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| 
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| **/
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| 
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| #include "AtaBus.h"
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| 
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| //
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| // Driver name table 
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| //
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| GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mAtaBusDriverNameTable[] = {
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|   { "eng;en", L"ATA Bus Driver" },
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|   { NULL , NULL }
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| };
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| 
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| //
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| // Controller name table
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| //
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| GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mAtaBusControllerNameTable[] = {
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|   { "eng;en", L"ATA Controller" },
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|   { NULL , NULL }
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| };
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| 
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| 
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| //
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| // EFI Component Name Protocol
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| //
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| GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gAtaBusComponentName = {
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|   AtaBusComponentNameGetDriverName,
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|   AtaBusComponentNameGetControllerName,
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|   "eng"
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| };
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| 
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| //
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| // EFI Component Name 2 Protocol
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| //
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| GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gAtaBusComponentName2 = {
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|   (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) AtaBusComponentNameGetDriverName,
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|   (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) AtaBusComponentNameGetControllerName,
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|   "en"
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| };
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| 
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| /**
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|   Retrieves a Unicode string that is the user readable name of the driver.
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| 
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|   This function retrieves the user readable name of a driver in the form of a
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|   Unicode string. If the driver specified by This has a user readable name in
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|   the language specified by Language, then a pointer to the driver name is
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|   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
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|   by This does not support the language specified by Language,
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|   then EFI_UNSUPPORTED is returned.
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| 
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|   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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|                                 EFI_COMPONENT_NAME_PROTOCOL instance.
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| 
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|   @param  Language[in]          A pointer to a Null-terminated ASCII string
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|                                 array indicating the language. This is the
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|                                 language of the driver name that the caller is
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|                                 requesting, and it must match one of the
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|                                 languages specified in SupportedLanguages. The
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|                                 number of languages supported by a driver is up
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|                                 to the driver writer. Language is specified
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|                                 in RFC 4646 or ISO 639-2 language code format.
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| 
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|   @param  DriverName[out]       A pointer to the Unicode string to return.
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|                                 This Unicode string is the name of the
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|                                 driver specified by This in the language
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|                                 specified by Language.
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| 
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|   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
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|                                 This and the language specified by Language was
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|                                 returned in DriverName.
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| 
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|   @retval EFI_INVALID_PARAMETER Language is NULL.
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| 
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|   @retval EFI_INVALID_PARAMETER DriverName is NULL.
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| 
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|   @retval EFI_UNSUPPORTED       The driver specified by This does not support
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|                                 the language specified by Language.
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| 
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| **/
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| EFI_STATUS
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| EFIAPI
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| AtaBusComponentNameGetDriverName (
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|   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
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|   IN  CHAR8                        *Language,
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|   OUT CHAR16                       **DriverName
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|   )
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| {
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|   return LookupUnicodeString2 (
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|            Language,
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|            This->SupportedLanguages,
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|            mAtaBusDriverNameTable,
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|            DriverName,
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|            (BOOLEAN)(This == &gAtaBusComponentName)
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|            );
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| }
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| 
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| 
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| /**
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|   Retrieves a Unicode string that is the user readable name of the controller
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|   that is being managed by a driver.
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| 
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|   This function retrieves the user readable name of the controller specified by
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|   ControllerHandle and ChildHandle in the form of a Unicode string. If the
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|   driver specified by This has a user readable name in the language specified by
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|   Language, then a pointer to the controller name is returned in ControllerName,
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|   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
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|   managing the controller specified by ControllerHandle and ChildHandle,
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|   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
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|   support the language specified by Language, then EFI_UNSUPPORTED is returned.
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| 
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|   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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|                                 EFI_COMPONENT_NAME_PROTOCOL instance.
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| 
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|   @param  ControllerHandle[in]  The handle of a controller that the driver
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|                                 specified by This is managing.  This handle
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|                                 specifies the controller whose name is to be
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|                                 returned.
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| 
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|   @param  ChildHandle[in]       The handle of the child controller to retrieve
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|                                 the name of.  This is an optional parameter that
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|                                 may be NULL.  It will be NULL for device
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|                                 drivers.  It will also be NULL for a bus drivers
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|                                 that wish to retrieve the name of the bus
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|                                 controller.  It will not be NULL for a bus
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|                                 driver that wishes to retrieve the name of a
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|                                 child controller.
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| 
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|   @param  Language[in]          A pointer to a Null-terminated ASCII string
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|                                 array indicating the language.  This is the
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|                                 language of the driver name that the caller is
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|                                 requesting, and it must match one of the
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|                                 languages specified in SupportedLanguages. The
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|                                 number of languages supported by a driver is up
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|                                 to the driver writer. Language is specified in
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|                                 RFC 4646 or ISO 639-2 language code format.
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| 
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|   @param  ControllerName[out]   A pointer to the Unicode string to return.
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|                                 This Unicode string is the name of the
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|                                 controller specified by ControllerHandle and
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|                                 ChildHandle in the language specified by
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|                                 Language from the point of view of the driver
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|                                 specified by This.
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| 
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|   @retval EFI_SUCCESS           The Unicode string for the user readable name in
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|                                 the language specified by Language for the
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|                                 driver specified by This was returned in
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|                                 DriverName.
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| 
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|   @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
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| 
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|   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
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|                                 EFI_HANDLE.
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| 
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|   @retval EFI_INVALID_PARAMETER Language is NULL.
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| 
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|   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
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| 
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|   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
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|                                 managing the controller specified by
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|                                 ControllerHandle and ChildHandle.
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| 
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|   @retval EFI_UNSUPPORTED       The driver specified by This does not support
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|                                 the language specified by Language.
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| 
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| **/
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| EFI_STATUS
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| EFIAPI
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| AtaBusComponentNameGetControllerName (
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|   IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
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|   IN  EFI_HANDLE                                      ControllerHandle,
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|   IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
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|   IN  CHAR8                                           *Language,
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|   OUT CHAR16                                          **ControllerName
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|   )
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| {
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|   EFI_STATUS                Status;
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|   EFI_BLOCK_IO_PROTOCOL     *BlockIo;
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|   ATA_DEVICE                *AtaDevice;
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|   EFI_UNICODE_STRING_TABLE  *ControllerNameTable;
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| 
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|   //
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|   // Make sure this driver is currently managing ControllHandle
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|   //
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|   Status = EfiTestManagedDevice (
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|              ControllerHandle,
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|              gAtaBusDriverBinding.DriverBindingHandle,
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|              &gEfiAtaPassThruProtocolGuid
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|              );
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|   if (EFI_ERROR (Status)) {
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|     return Status;
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|   }
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| 
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|   ControllerNameTable = mAtaBusControllerNameTable;
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|   if (ChildHandle != NULL) {
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|     Status = EfiTestChildHandle (
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|                ControllerHandle,
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|                ChildHandle,
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|                &gEfiAtaPassThruProtocolGuid
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|                );
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|     if (EFI_ERROR (Status)) {
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|       return Status;
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|     }
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|     //
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|     // Get the child context
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|     //
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|     Status = gBS->OpenProtocol (
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|                     ChildHandle,
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|                     &gEfiBlockIoProtocolGuid,
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|                     (VOID **) &BlockIo,
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|                     gAtaBusDriverBinding.DriverBindingHandle,
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|                     ChildHandle,
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|                     EFI_OPEN_PROTOCOL_GET_PROTOCOL
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|                     );
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|     if (EFI_ERROR (Status)) {
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|       return EFI_UNSUPPORTED;
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|     }
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|     AtaDevice = ATA_DEVICE_FROM_BLOCK_IO (BlockIo);
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|     ControllerNameTable =AtaDevice->ControllerNameTable;
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|   }
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|   return LookupUnicodeString2 (
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|            Language,
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|            This->SupportedLanguages,
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|            ControllerNameTable,
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|            ControllerName,
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|            (BOOLEAN)(This == &gAtaBusComponentName)
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|            );
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| }
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