MdeModulePkg/Bus/Pci/NonDiscoverablePciDeviceDxe/ComponentName.c

/** @file

  Copyright (C) 2016, Linaro Ltd. All rights reserved.<BR>

  This program and the accompanying materials are licensed and made available
  under the terms and conditions of the BSD License which accompanies this
  distribution. The full text of the license may be found at
  http://opensource.org/licenses/bsd-license.php

  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
  WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

#include "NonDiscoverablePciDeviceIo.h"

//
// The purpose of the following scaffolding (EFI_COMPONENT_NAME_PROTOCOL and
// EFI_COMPONENT_NAME2_PROTOCOL implementation) is to format the driver's name
// in English, for display on standard console devices. This is recommended for
// UEFI drivers that follow the UEFI Driver Model. Refer to the Driver Writer's
// Guide for UEFI 2.3.1 v1.01, 11 UEFI Driver and Controller Names.
//

STATIC
EFI_UNICODE_STRING_TABLE mDriverNameTable[] = {
  { "eng;en", L"PCI I/O protocol emulation driver for non-discoverable devices" },
  { NULL,     NULL                   }
};

EFI_COMPONENT_NAME_PROTOCOL gComponentName;

/**
  Retrieves a Unicode string that is the user readable name of the UEFI Driver.

  @param This           A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
  @param Language       A pointer to a three character ISO 639-2 language identifier.
                        This is the language of the driver name that that the caller
                        is requesting, and it must match one of the languages specified
                        in SupportedLanguages.  The number of languages supported by a
                        driver is up to the driver writer.
  @param DriverName     A pointer to the Unicode string to return.  This Unicode string
                        is the name of the driver specified by This in the language
                        specified by Language.

  @retval EFI_SUCCESS           The Unicode string for the Driver specified by This
                                and the language specified by Language was returned
                                in DriverName.
  @retval EFI_INVALID_PARAMETER Language is NULL.
  @retval EFI_INVALID_PARAMETER DriverName is NULL.
  @retval EFI_UNSUPPORTED       The driver specified by This does not support the
                                language specified by Language.
**/
STATIC
EFI_STATUS
EFIAPI
NonDiscoverablePciGetDriverName (
  IN  EFI_COMPONENT_NAME_PROTOCOL *This,
  IN  CHAR8                       *Language,
  OUT CHAR16                      **DriverName
  )
{
  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           mDriverNameTable,
           DriverName,
           (BOOLEAN)(This == &gComponentName) // Iso639Language
           );
}

/**
  Retrieves a Unicode string that is the user readable name of the controller
  that is being managed by an UEFI Driver.

  @param This                   A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
  @param DeviceHandle           The handle of a controller that the driver specified by
                                This is managing.  This handle specifies the controller
                                whose name is to be returned.
  @param ChildHandle            The handle of the child controller to retrieve the name
                                of.  This is an optional parameter that may be NULL.  It
                                will be NULL for device drivers.  It will also be NULL
                                for a bus drivers that wish to retrieve the name of the
                                bus controller.  It will not be NULL for a bus driver
                                that wishes to retrieve the name of a child controller.
  @param Language               A pointer to a three character ISO 639-2 language
                                identifier.  This is the language of the controller name
                                that that the caller is requesting, and it must match one
                                of the languages specified in SupportedLanguages.  The
                                number of languages supported by a driver is up to the
                                driver writer.
  @param ControllerName         A pointer to the Unicode string to return.  This Unicode
                                string is the name of the controller specified by
                                ControllerHandle and ChildHandle in the language
                                specified by Language from the point of view of the
                                driver specified by This.
**/
STATIC
EFI_STATUS
EFIAPI
NonDiscoverablePciGetDeviceName (
  IN  EFI_COMPONENT_NAME_PROTOCOL *This,
  IN  EFI_HANDLE                  DeviceHandle,
  IN  EFI_HANDLE                  ChildHandle,
  IN  CHAR8                       *Language,
  OUT CHAR16                      **ControllerName
  )
{
  return EFI_UNSUPPORTED;
}

EFI_COMPONENT_NAME_PROTOCOL gComponentName = {
  &NonDiscoverablePciGetDriverName,
  &NonDiscoverablePciGetDeviceName,
  "eng" // SupportedLanguages, ISO 639-2 language codes
};

EFI_COMPONENT_NAME2_PROTOCOL gComponentName2 = {
  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME)     &NonDiscoverablePciGetDriverName,
  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) &NonDiscoverablePciGetDeviceName,
  "en" // SupportedLanguages, RFC 4646 language codes
};