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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
		
			
				
	
	
		
			252 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			252 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/** @file
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  UEFI Component Name(2) protocol implementation for AtaAtapiPassThru driver.
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  Copyright (c) 2010 - 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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  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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#include "AtaAtapiPassThru.h"
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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 mAtaAtapiPassThruDriverNameTable[] = {
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  { "eng;en", L"AtaAtapiPassThru Driver" },
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  { NULL , NULL }
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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 mAtaAtapiPassThruIdeControllerNameTable[] = {
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  { "eng;en", L"IDE Controller" },
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  { NULL , NULL }
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};
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GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mAtaAtapiPassThruAhciControllerNameTable[] = {
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  { "eng;en", L"AHCI Controller" },
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  { NULL , NULL }
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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  gAtaAtapiPassThruComponentName = {
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  AtaAtapiPassThruComponentNameGetDriverName,
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  AtaAtapiPassThruComponentNameGetControllerName,
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  "eng"
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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 gAtaAtapiPassThruComponentName2 = {
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  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) AtaAtapiPassThruComponentNameGetDriverName,
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  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) AtaAtapiPassThruComponentNameGetControllerName,
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  "en"
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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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  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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  @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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  @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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  @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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  @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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  @retval EFI_INVALID_PARAMETER Language is NULL.
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  @retval EFI_INVALID_PARAMETER DriverName is NULL.
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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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EFI_STATUS
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EFIAPI
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AtaAtapiPassThruComponentNameGetDriverName (
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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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           mAtaAtapiPassThruDriverNameTable,
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           DriverName,
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           (BOOLEAN)(This == &gAtaAtapiPassThruComponentName)
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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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  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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  @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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  @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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  @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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  @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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  @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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  @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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  @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
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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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  @retval EFI_INVALID_PARAMETER Language is NULL.
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  @retval EFI_INVALID_PARAMETER ControllerName is NULL.
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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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  @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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EFI_STATUS
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EFIAPI
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AtaAtapiPassThruComponentNameGetControllerName (
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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_UNICODE_STRING_TABLE      *ControllerNameTable;
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  VOID                          *Interface;
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  ATA_ATAPI_PASS_THRU_INSTANCE  *Instance;
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  if (Language == NULL || ControllerName == NULL) {
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    return EFI_INVALID_PARAMETER;
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  }
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  //
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  // This is a device driver, so ChildHandle must be NULL.
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  //
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  if (ChildHandle != NULL) {
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    return EFI_UNSUPPORTED;
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  }
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  //
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  // Make sure this driver is currently managing Controller Handle
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  //
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  Status = EfiTestManagedDevice (
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             ControllerHandle,
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             gAtaAtapiPassThruDriverBinding.DriverBindingHandle,
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             &gEfiIdeControllerInitProtocolGuid
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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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  // AtaPassThru and ExtScsiPassThru should also be installed at the controller handle.
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  //
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  Status = gBS->OpenProtocol (
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                  ControllerHandle,
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                  &gEfiAtaPassThruProtocolGuid,
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                  &Interface,
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                  gAtaAtapiPassThruDriverBinding.DriverBindingHandle,
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                  ControllerHandle,
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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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  Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (Interface);
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  if (Instance->Mode == EfiAtaIdeMode) {
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    ControllerNameTable = mAtaAtapiPassThruIdeControllerNameTable;
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  } else if (Instance->Mode == EfiAtaAhciMode) {
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    ControllerNameTable = mAtaAtapiPassThruAhciControllerNameTable;
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  } else {
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    return EFI_UNSUPPORTED;
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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 == &gAtaAtapiPassThruComponentName)
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           );
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}
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