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path: root/MdeModulePkg/Universal/Console/ConSplitterDxe/ComponentName.c
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/*++

Copyright (c) 2006, Intel Corporation                                                         
All rights reserved. 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.             

Module Name:

  ComponentName.c

Abstract:

--*/

#include "ConSplitter.h"

//
// EFI Component Name Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gConSplitterConInComponentName = {
  ConSplitterComponentNameGetDriverName,
  ConSplitterConInComponentNameGetControllerName,
  "eng"
};

//
// EFI Component Name 2 Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gConSplitterConInComponentName2 = {
  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) ConSplitterComponentNameGetDriverName,
  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) ConSplitterConInComponentNameGetControllerName,
  "en"
};


//
// EFI Component Name Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gConSplitterSimplePointerComponentName = {
  ConSplitterComponentNameGetDriverName,
  ConSplitterSimplePointerComponentNameGetControllerName,
  "eng"
};

//
// EFI Component Name 2 Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gConSplitterSimplePointerComponentName2 = {
  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) ConSplitterComponentNameGetDriverName,
  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) ConSplitterSimplePointerComponentNameGetControllerName,
  "en"
};

//
// EFI Component Name Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gConSplitterAbsolutePointerComponentName = {
  ConSplitterComponentNameGetDriverName,
  ConSplitterAbsolutePointerComponentNameGetControllerName,
  "eng"
};

//
// EFI Component Name 2 Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gConSplitterAbsolutePointerComponentName2 = {
  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) ConSplitterComponentNameGetDriverName,
  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) ConSplitterAbsolutePointerComponentNameGetControllerName,
  "en"
};

//
// EFI Component Name Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gConSplitterConOutComponentName = {
  ConSplitterComponentNameGetDriverName,
  ConSplitterConOutComponentNameGetControllerName,
  "eng"
};

//
// EFI Component Name 2 Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gConSplitterConOutComponentName2 = {
  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) ConSplitterComponentNameGetDriverName,
  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) ConSplitterConOutComponentNameGetControllerName,
  "en"
};


//
// EFI Component Name Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gConSplitterStdErrComponentName = {
  ConSplitterComponentNameGetDriverName,
  ConSplitterStdErrComponentNameGetControllerName,
  "eng"
};

//
// EFI Component Name 2 Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gConSplitterStdErrComponentName2 = {
  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) ConSplitterComponentNameGetDriverName,
  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) ConSplitterStdErrComponentNameGetControllerName,
  "en"
};


GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mConSplitterDriverNameTable[] = {
  {
    "eng;en",
    (CHAR16 *) L"Console Splitter Driver"
  },
  {
    NULL,
    NULL
  }
};

GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mConSplitterConInControllerNameTable[] = {
  {
    "eng;en",
    (CHAR16 *) L"Primary Console Input Device"
  },
  {
    NULL,
    NULL
  }
};

GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mConSplitterSimplePointerControllerNameTable[] = {
  {
    "eng;en",
    (CHAR16 *) L"Primary Simple Pointer Device"
  },
  {
    NULL,
    NULL
  }
};

GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mConSplitterAbsolutePointerControllerNameTable[] = {
  {
    "eng;en",
    (CHAR16 *)L"Primary Absolute Pointer Device"
  },
  {
    NULL,
    NULL
  }
};

GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mConSplitterConOutControllerNameTable[] = {
  {
    "eng;en",
    (CHAR16 *) L"Primary Console Output Device"
  },
  {
    NULL,
    NULL
  }
};

GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mConSplitterStdErrControllerNameTable[] = {
  {
    "eng;en",
    (CHAR16 *) L"Primary Standard Error Device"
  },
  {
    NULL,
    NULL
  }
};

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

  This function retrieves the user readable name of a driver in the form of a
  Unicode string. If the driver specified by This has a user readable name in
  the language specified by Language, then a pointer to the driver name is
  returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
  by This does not support the language specified by Language,
  then EFI_UNSUPPORTED is returned.

  @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
                                EFI_COMPONENT_NAME_PROTOCOL instance.

  @param  Language[in]          A pointer to a Null-terminated ASCII string
                                array indicating the language. This is the
                                language of the driver name 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. Language is specified
                                in RFC 3066 or ISO 639-2 language code format.

  @param  DriverName[out]       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.

**/
EFI_STATUS
EFIAPI
ConSplitterComponentNameGetDriverName (
  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
  IN  CHAR8                        *Language,
  OUT CHAR16                       **DriverName
  )
{
  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           mConSplitterDriverNameTable,
           DriverName,
           (BOOLEAN)(This == &gConSplitterConInComponentName)
           );
}

/**
  Tests whether a controller handle is being managed by a specific driver and
  the child handle is a child device of the controller.

  @param  ControllerHandle     A handle for a controller to test.
  @param  DriverBindingHandle  Specifies the driver binding handle for the
                               driver.
  @param  ProtocolGuid         Specifies the protocol that the driver specified
                               by DriverBindingHandle opens in its Start()
                               function.
  @param  ChildHandle          A child handle to test.
  @param  ConsumsedGuid        Supplies the protocol that the child controller
                               opens on its parent controller.

  @retval EFI_SUCCESS          ControllerHandle is managed by the driver
                               specifed by DriverBindingHandle and ChildHandle
                               is a child of the ControllerHandle.
  @retval EFI_UNSUPPORTED      ControllerHandle is not managed by the driver
                               specifed by DriverBindingHandle.
  @retval EFI_UNSUPPORTED      ChildHandle is not a child of the
                               ControllerHandle.

**/
EFI_STATUS
ConSplitterTestControllerHandles (
  IN  CONST EFI_HANDLE       ControllerHandle,
  IN  CONST EFI_HANDLE       DriverBindingHandle,
  IN  CONST EFI_GUID         *ProtocolGuid,
  IN  EFI_HANDLE             ChildHandle,
  IN  CONST EFI_GUID         *ConsumsedGuid
  )
{
  EFI_STATUS                 Status;

  //
  // here ChildHandle is not an Optional parameter.
  //
  if (ChildHandle == NULL) {
    return EFI_UNSUPPORTED;
  }

  Status = EfiTestManagedDevice (
             ControllerHandle,
             DriverBindingHandle,
             ProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  Status = EfiTestChildHandle (
             ControllerHandle,
             ChildHandle,
             ConsumsedGuid
             );

  return Status;
}

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

  This function retrieves the user readable name of the controller specified by
  ControllerHandle and ChildHandle in the form of a Unicode string. If the
  driver specified by This has a user readable name in the language specified by
  Language, then a pointer to the controller name is returned in ControllerName,
  and EFI_SUCCESS is returned.  If the driver specified by This is not currently
  managing the controller specified by ControllerHandle and ChildHandle,
  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
  support the language specified by Language, then EFI_UNSUPPORTED is returned.

  @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
                                EFI_COMPONENT_NAME_PROTOCOL instance.

  @param  ControllerHandle[in]  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[in]       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[in]          A pointer to a Null-terminated ASCII string
                                array indicating the language.  This is the
                                language of the driver name 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. Language is specified in
                                RFC 3066 or ISO 639-2 language code format.

  @param  ControllerName[out]   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.

  @retval EFI_SUCCESS           The Unicode string for the user readable name in
                                the language specified by Language for the
                                driver specified by This was returned in
                                DriverName.

  @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.

  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
                                EFI_HANDLE.

  @retval EFI_INVALID_PARAMETER Language is NULL.

  @retval EFI_INVALID_PARAMETER ControllerName is NULL.

  @retval EFI_UNSUPPORTED       The driver specified by This is not currently
                                managing the controller specified by
                                ControllerHandle and ChildHandle.

  @retval EFI_UNSUPPORTED       The driver specified by This does not support
                                the language specified by Language.

**/
EFI_STATUS
EFIAPI
ConSplitterConInComponentNameGetControllerName (
  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
  IN  EFI_HANDLE                                      ControllerHandle,
  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
  IN  CHAR8                                           *Language,
  OUT CHAR16                                          **ControllerName
  )
{
  EFI_STATUS                     Status;

  Status = ConSplitterTestControllerHandles (
             ControllerHandle,
             gConSplitterConInDriverBinding.DriverBindingHandle,
             &gEfiSimpleTextInProtocolGuid,
             ChildHandle,
             &gEfiConsoleInDeviceGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           mConSplitterConInControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gConSplitterConInComponentName)
           );
}

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

  This function retrieves the user readable name of the controller specified by
  ControllerHandle and ChildHandle in the form of a Unicode string. If the
  driver specified by This has a user readable name in the language specified by
  Language, then a pointer to the controller name is returned in ControllerName,
  and EFI_SUCCESS is returned.  If the driver specified by This is not currently
  managing the controller specified by ControllerHandle and ChildHandle,
  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
  support the language specified by Language, then EFI_UNSUPPORTED is returned.

  @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
                                EFI_COMPONENT_NAME_PROTOCOL instance.

  @param  ControllerHandle[in]  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[in]       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[in]          A pointer to a Null-terminated ASCII string
                                array indicating the language.  This is the
                                language of the driver name 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. Language is specified in
                                RFC 3066 or ISO 639-2 language code format.

  @param  ControllerName[out]   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.

  @retval EFI_SUCCESS           The Unicode string for the user readable name in
                                the language specified by Language for the
                                driver specified by This was returned in
                                DriverName.

  @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.

  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
                                EFI_HANDLE.

  @retval EFI_INVALID_PARAMETER Language is NULL.

  @retval EFI_INVALID_PARAMETER ControllerName is NULL.

  @retval EFI_UNSUPPORTED       The driver specified by This is not currently
                                managing the controller specified by
                                ControllerHandle and ChildHandle.

  @retval EFI_UNSUPPORTED       The driver specified by This does not support
                                the language specified by Language.

**/
EFI_STATUS
EFIAPI
ConSplitterSimplePointerComponentNameGetControllerName (
  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
  IN  EFI_HANDLE                                      ControllerHandle,
  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
  IN  CHAR8                                           *Language,
  OUT CHAR16                                          **ControllerName
  )
{
  EFI_STATUS                  Status;

  Status = ConSplitterTestControllerHandles (
             ControllerHandle,
             gConSplitterSimplePointerDriverBinding.DriverBindingHandle,
             &gEfiSimplePointerProtocolGuid,
             ChildHandle,
             &gEfiSimplePointerProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           mConSplitterSimplePointerControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gConSplitterSimplePointerComponentName)
           );
}

EFI_STATUS
EFIAPI
ConSplitterAbsolutePointerComponentNameGetControllerName (
  IN  EFI_COMPONENT_NAME_PROTOCOL                    *This,
  IN  EFI_HANDLE                                      ControllerHandle,
  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
  IN  CHAR8                                           *Language,
  OUT CHAR16                                          **ControllerName
  )
/*++

  Routine Description:
    Retrieves a Unicode string that is the user readable name of the controller
    that is being managed by an EFI Driver.

  Arguments:
    This             - A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
    ControllerHandle - The handle of a controller that the driver specified by 
                       This is managing.  This handle specifies the controller 
                       whose name is to be returned.
    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.
    Language         - A pointer to RFC3066 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.
    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. 

  Returns:
    EFI_SUCCESS           - The Unicode string for the user readable name in the
                            language specified by Language for the driver 
                            specified by This was returned in DriverName.
    EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
    EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid 
                            EFI_HANDLE.
    EFI_INVALID_PARAMETER - Language is NULL.
    EFI_INVALID_PARAMETER - ControllerName is NULL.
    EFI_UNSUPPORTED       - The driver specified by This is not currently 
                            managing the controller specified by 
                            ControllerHandle and ChildHandle.
    EFI_UNSUPPORTED       - The driver specified by This does not support the 
                            language specified by Language.

--*/
{
  EFI_STATUS                    Status;

  Status = ConSplitterTestControllerHandles (
             ControllerHandle,
             gConSplitterAbsolutePointerDriverBinding.DriverBindingHandle,
             &gEfiAbsolutePointerProtocolGuid,
             ChildHandle,
             &gEfiAbsolutePointerProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           mConSplitterAbsolutePointerControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gConSplitterAbsolutePointerComponentName)
           );
}

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

  This function retrieves the user readable name of the controller specified by
  ControllerHandle and ChildHandle in the form of a Unicode string. If the
  driver specified by This has a user readable name in the language specified by
  Language, then a pointer to the controller name is returned in ControllerName,
  and EFI_SUCCESS is returned.  If the driver specified by This is not currently
  managing the controller specified by ControllerHandle and ChildHandle,
  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
  support the language specified by Language, then EFI_UNSUPPORTED is returned.

  @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
                                EFI_COMPONENT_NAME_PROTOCOL instance.

  @param  ControllerHandle[in]  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[in]       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[in]          A pointer to a Null-terminated ASCII string
                                array indicating the language.  This is the
                                language of the driver name 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. Language is specified in
                                RFC 3066 or ISO 639-2 language code format.

  @param  ControllerName[out]   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.

  @retval EFI_SUCCESS           The Unicode string for the user readable name in
                                the language specified by Language for the
                                driver specified by This was returned in
                                DriverName.

  @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.

  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
                                EFI_HANDLE.

  @retval EFI_INVALID_PARAMETER Language is NULL.

  @retval EFI_INVALID_PARAMETER ControllerName is NULL.

  @retval EFI_UNSUPPORTED       The driver specified by This is not currently
                                managing the controller specified by
                                ControllerHandle and ChildHandle.

  @retval EFI_UNSUPPORTED       The driver specified by This does not support
                                the language specified by Language.

**/
EFI_STATUS
EFIAPI
ConSplitterConOutComponentNameGetControllerName (
  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
  IN  EFI_HANDLE                                      ControllerHandle,
  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
  IN  CHAR8                                           *Language,
  OUT CHAR16                                          **ControllerName
  )
{
  EFI_STATUS                       Status;

  Status = ConSplitterTestControllerHandles (
             ControllerHandle,
             gConSplitterConOutDriverBinding.DriverBindingHandle,
             &gEfiSimpleTextOutProtocolGuid,
             ChildHandle,
             &gEfiConsoleOutDeviceGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           mConSplitterConOutControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gConSplitterConOutComponentName)
           );
}

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

  This function retrieves the user readable name of the controller specified by
  ControllerHandle and ChildHandle in the form of a Unicode string. If the
  driver specified by This has a user readable name in the language specified by
  Language, then a pointer to the controller name is returned in ControllerName,
  and EFI_SUCCESS is returned.  If the driver specified by This is not currently
  managing the controller specified by ControllerHandle and ChildHandle,
  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
  support the language specified by Language, then EFI_UNSUPPORTED is returned.

  @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
                                EFI_COMPONENT_NAME_PROTOCOL instance.

  @param  ControllerHandle[in]  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[in]       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[in]          A pointer to a Null-terminated ASCII string
                                array indicating the language.  This is the
                                language of the driver name 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. Language is specified in
                                RFC 3066 or ISO 639-2 language code format.

  @param  ControllerName[out]   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.

  @retval EFI_SUCCESS           The Unicode string for the user readable name in
                                the language specified by Language for the
                                driver specified by This was returned in
                                DriverName.

  @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.

  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
                                EFI_HANDLE.

  @retval EFI_INVALID_PARAMETER Language is NULL.

  @retval EFI_INVALID_PARAMETER ControllerName is NULL.

  @retval EFI_UNSUPPORTED       The driver specified by This is not currently
                                managing the controller specified by
                                ControllerHandle and ChildHandle.

  @retval EFI_UNSUPPORTED       The driver specified by This does not support
                                the language specified by Language.

**/
EFI_STATUS
EFIAPI
ConSplitterStdErrComponentNameGetControllerName (
  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
  IN  EFI_HANDLE                                      ControllerHandle,
  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
  IN  CHAR8                                           *Language,
  OUT CHAR16                                          **ControllerName
  )
{
  EFI_STATUS                       Status;

  Status = ConSplitterTestControllerHandles (
             ControllerHandle,
             gConSplitterStdErrDriverBinding.DriverBindingHandle,
             &gEfiSimpleTextOutProtocolGuid,
             ChildHandle,
             &gEfiStandardErrorDeviceGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           mConSplitterStdErrControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gConSplitterStdErrComponentName)
           );
}