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      1 /** @file
      2   EFI Component Name Protocol as defined in the EFI 1.1 specification.
      3   This protocol is used to retrieve user readable names of EFI Drivers
      4   and controllers managed by EFI Drivers.
      5 
      6 Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
      7 This program and the accompanying materials are licensed and made available under
      8 the terms and conditions of the BSD License that accompanies this distribution.
      9 The full text of the license may be found at
     10 http://opensource.org/licenses/bsd-license.php.
     11 
     12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     14 
     15 **/
     16 
     17 #ifndef __EFI_COMPONENT_NAME_H__
     18 #define __EFI_COMPONENT_NAME_H__
     19 
     20 ///
     21 /// The global ID for the Component Name Protocol.
     22 ///
     23 #define EFI_COMPONENT_NAME_PROTOCOL_GUID \
     24   { \
     25     0x107a772c, 0xd5e1, 0x11d4, {0x9a, 0x46, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
     26   }
     27 
     28 typedef struct _EFI_COMPONENT_NAME_PROTOCOL  EFI_COMPONENT_NAME_PROTOCOL;
     29 
     30 
     31 /**
     32   Retrieves a Unicode string that is the user-readable name of the EFI Driver.
     33 
     34   @param  This       A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
     35   @param  Language   A pointer to a three-character ISO 639-2 language identifier.
     36                      This is the language of the driver name that that the caller
     37                      is requesting, and it must match one of the languages specified
     38                      in SupportedLanguages.  The number of languages supported by a
     39                      driver is up to the driver writer.
     40   @param  DriverName A pointer to the Unicode string to return.  This Unicode string
     41                      is the name of the driver specified by This in the language
     42                      specified by Language.
     43 
     44   @retval EFI_SUCCESS           The Unicode string for the Driver specified by This
     45                                 and the language specified by Language was returned
     46                                 in DriverName.
     47   @retval EFI_INVALID_PARAMETER Language is NULL.
     48   @retval EFI_INVALID_PARAMETER DriverName is NULL.
     49   @retval EFI_UNSUPPORTED       The driver specified by This does not support the
     50                                 language specified by Language.
     51 
     52 **/
     53 typedef
     54 EFI_STATUS
     55 (EFIAPI *EFI_COMPONENT_NAME_GET_DRIVER_NAME)(
     56   IN EFI_COMPONENT_NAME_PROTOCOL           *This,
     57   IN  CHAR8                                *Language,
     58   OUT CHAR16                               **DriverName
     59   );
     60 
     61 
     62 /**
     63   Retrieves a Unicode string that is the user readable name of the controller
     64   that is being managed by an EFI Driver.
     65 
     66   @param  This             A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
     67   @param  ControllerHandle The handle of a controller that the driver specified by
     68                            This is managing.  This handle specifies the controller
     69                            whose name is to be returned.
     70   @param  ChildHandle      The handle of the child controller to retrieve the name
     71                            of.  This is an optional parameter that may be NULL.  It
     72                            will be NULL for device drivers.  It will also be NULL
     73                            for a bus drivers that wish to retrieve the name of the
     74                            bus controller.  It will not be NULL for a bus driver
     75                            that wishes to retrieve the name of a child controller.
     76   @param  Language         A pointer to a three character ISO 639-2 language
     77                            identifier.  This is the language of the controller name
     78                            that the caller is requesting, and it must match one
     79                            of the languages specified in SupportedLanguages.  The
     80                            number of languages supported by a driver is up to the
     81                            driver writer.
     82   @param  ControllerName   A pointer to the Unicode string to return.  This Unicode
     83                            string is the name of the controller specified by
     84                            ControllerHandle and ChildHandle in the language specified
     85                            by Language, from the point of view of the driver specified
     86                            by This.
     87 
     88   @retval EFI_SUCCESS           The Unicode string for the user-readable name in the
     89                                 language specified by Language for the driver
     90                                 specified by This was returned in DriverName.
     91   @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
     92   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid EFI_HANDLE.
     93   @retval EFI_INVALID_PARAMETER Language is NULL.
     94   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
     95   @retval EFI_UNSUPPORTED       The driver specified by This is not currently managing
     96                                 the controller specified by ControllerHandle and
     97                                 ChildHandle.
     98   @retval EFI_UNSUPPORTED       The driver specified by This does not support the
     99                                 language specified by Language.
    100 
    101 **/
    102 typedef
    103 EFI_STATUS
    104 (EFIAPI *EFI_COMPONENT_NAME_GET_CONTROLLER_NAME)(
    105   IN EFI_COMPONENT_NAME_PROTOCOL                              *This,
    106   IN  EFI_HANDLE                                              ControllerHandle,
    107   IN  EFI_HANDLE                                              ChildHandle        OPTIONAL,
    108   IN  CHAR8                                                   *Language,
    109   OUT CHAR16                                                  **ControllerName
    110   );
    111 
    112 ///
    113 /// This protocol is used to retrieve user readable names of drivers
    114 /// and controllers managed by UEFI Drivers.
    115 ///
    116 struct _EFI_COMPONENT_NAME_PROTOCOL {
    117   EFI_COMPONENT_NAME_GET_DRIVER_NAME      GetDriverName;
    118   EFI_COMPONENT_NAME_GET_CONTROLLER_NAME  GetControllerName;
    119   ///
    120   /// A Null-terminated ASCII string that contains one or more
    121   /// ISO 639-2 language codes. This is the list of language codes
    122   /// that this protocol supports.
    123   ///
    124   CHAR8                                   *SupportedLanguages;
    125 };
    126 
    127 extern EFI_GUID gEfiComponentNameProtocolGuid;
    128 
    129 #endif
    130