ComponentName.c

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#include "EmuSimpleFileSystem.h"
 
//
// EFI Component Name Functions
//
EFI_STATUS
EFIAPI
EmuSimpleFileSystemComponentNameGetDriverName (
  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
  IN  CHAR8                        *Language,
  OUT CHAR16                       **DriverName
  );
 
EFI_STATUS
EFIAPI
EmuSimpleFileSystemComponentNameGetControllerName (
  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
  IN  EFI_HANDLE                   ControllerHandle,
  IN  EFI_HANDLE                   ChildHandle        OPTIONAL,
  IN  CHAR8                        *Language,
  OUT CHAR16                       **ControllerName
  );
 
//
// EFI Component Name Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gEmuSimpleFileSystemComponentName = {
  EmuSimpleFileSystemComponentNameGetDriverName,
  EmuSimpleFileSystemComponentNameGetControllerName,
  "eng"
};
 
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL  gEmuSimpleFileSystemComponentName2 = {
  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME)EmuSimpleFileSystemComponentNameGetDriverName,
  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME)EmuSimpleFileSystemComponentNameGetControllerName,
  "en"
};
 
EFI_UNICODE_STRING_TABLE  mEmuSimpleFileSystemDriverNameTable[] = {
  {
    "eng;en",
    L"Emu Simple File System Driver"
  },
  {
    NULL,
    NULL
  }
};
 
EFI_STATUS
EFIAPI
EmuSimpleFileSystemComponentNameGetDriverName (
  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
  IN  CHAR8                        *Language,
  OUT CHAR16                       **DriverName
  )
{
  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           mEmuSimpleFileSystemDriverNameTable,
           DriverName,
           (BOOLEAN)(This == &gEmuSimpleFileSystemComponentName)
           );
}
 
EFI_STATUS
EFIAPI
EmuSimpleFileSystemComponentNameGetControllerName (
  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
  IN  EFI_HANDLE                   ControllerHandle,
  IN  EFI_HANDLE                   ChildHandle        OPTIONAL,
  IN  CHAR8                        *Language,
  OUT CHAR16                       **ControllerName
  )
{
  EFI_STATUS                       Status;
  EFI_SIMPLE_FILE_SYSTEM_PROTOCOL  *SimpleFileSystem;
  EMU_SIMPLE_FILE_SYSTEM_PRIVATE   *Private;
 
  //
  // This is a device driver, so ChildHandle must be NULL.
  //
  if (ChildHandle != NULL) {
    return EFI_UNSUPPORTED;
  }
 
  //
  // Make sure this driver is currently managing ControllerHandle
  //
  Status = EfiTestManagedDevice (
             ControllerHandle,
             gEmuSimpleFileSystemDriverBinding.DriverBindingHandle,
             &gEmuIoThunkProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return EFI_UNSUPPORTED;
  }
 
  //
  // Get our context back
  //
  Status = gBS->OpenProtocol (
                  ControllerHandle,
                  &gEfiSimpleFileSystemProtocolGuid,
                  (VOID **)&SimpleFileSystem,
                  gEmuSimpleFileSystemDriverBinding.DriverBindingHandle,
                  ControllerHandle,
                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
                  );
  if (EFI_ERROR (Status)) {
    return EFI_UNSUPPORTED;
  }
 
  Private = EMU_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (SimpleFileSystem);
 
  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           Private->ControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gEmuSimpleFileSystemComponentName)
           );
}