Ejemplo n.º 1
0
/**
  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 4646 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
UhciComponentNameGetControllerName (
  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
  IN  EFI_HANDLE                                      ControllerHandle,
  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
  IN  CHAR8                                           *Language,
  OUT CHAR16                                          **ControllerName
  )
{
  EFI_STATUS           Status;
  USB_HC_DEV           *UhciDev;
  EFI_USB2_HC_PROTOCOL *Usb2Hc;

  //
  // 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,
             gUhciDriverBinding.DriverBindingHandle,
             &gEfiPciIoProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  //
  // Get the device context
  //
  Status = gBS->OpenProtocol (
                  ControllerHandle,
                  &gEfiUsb2HcProtocolGuid,
                  (VOID **) &Usb2Hc,
                  gUhciDriverBinding.DriverBindingHandle,
                  ControllerHandle,
                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
                  );

  if (EFI_ERROR (Status)) {
    return Status;
  }

  UhciDev = UHC_FROM_USB2_HC_PROTO (Usb2Hc);

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           UhciDev->CtrlNameTable,
           ControllerName,
           (BOOLEAN)(This == &gUhciComponentName)
           );

}
Ejemplo n.º 2
0
/**
  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                  A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
                                EFI_COMPONENT_NAME_PROTOCOL instance.

  @param  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.

  @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 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 4646 or ISO 639-2 language code format.

  @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.

  @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 NULL.

  @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
ScsiDiskComponentNameGetControllerName (
  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
  IN  EFI_HANDLE                                      ControllerHandle,
  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
  IN  CHAR8                                           *Language,
  OUT CHAR16                                          **ControllerName
  )
{
  EFI_STATUS            Status;
  SCSI_DISK_DEV         *ScsiDiskDevice;
  EFI_BLOCK_IO_PROTOCOL *BlockIo;

  //
  // 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,
             gScsiDiskDriverBinding.DriverBindingHandle,
             &gEfiScsiIoProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }
  //
  // Get the device context
  //
  Status = gBS->OpenProtocol (
                  ControllerHandle,
                  &gEfiBlockIoProtocolGuid,
                  (VOID **) &BlockIo,
                  gScsiDiskDriverBinding.DriverBindingHandle,
                  ControllerHandle,
                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
                  );

  if (EFI_ERROR (Status)) {
    return Status;
  }

  ScsiDiskDevice = SCSI_DISK_DEV_FROM_BLKIO (BlockIo);

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           ScsiDiskDevice->ControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gScsiDiskComponentName)
           );

}
Ejemplo n.º 3
0
/**
  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. 
  Currently not implemented. 

  @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 4646 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 NULL.

  @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
SimpleNetworkComponentNameGetControllerName (
  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_NETWORK_PROTOCOL   *Snp;
  
  if (ChildHandle != NULL) {
    return EFI_UNSUPPORTED;
  }

  //
  // Make sure this driver is currently managing ControllHandle
  //
  Status = EfiTestManagedDevice (
             ControllerHandle,
             gSimpleNetworkDriverBinding.DriverBindingHandle,
             &gEfiSimpleNetworkProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  // 
  // Retrieve an instance of a produced protocol from ControllerHandle
  // 
  Status = gBS->OpenProtocol (
                  ControllerHandle,
                  &gEfiSimpleNetworkProtocolGuid,
                  (VOID **)&Snp,
                  NULL,
                  NULL,
                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
                  );
  if (EFI_ERROR (Status)) {
    return Status;
  }
  //
  // Update the component name for this child handle.
  //
  Status = UpdateName (Snp);
  if (EFI_ERROR (Status)) {
    return Status;
  }

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           gSimpleNetworkControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gSimpleNetworkComponentName)
           );
}
Ejemplo n.º 4
0
/**
  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 4646 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 NULL.

  @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
IsaSerialComponentNameGetControllerName (
  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_SERIAL_IO_PROTOCOL  *SerialIo;
  SERIAL_DEV              *SerialDevice;

  //
  // 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,
             gSerialControllerDriver.DriverBindingHandle,
             &gEfiIsaIoProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }
  //
  // Get the Block I/O Protocol on Controller
  //
  Status = gBS->OpenProtocol (
                  ControllerHandle,
                  &gEfiSerialIoProtocolGuid,
                  (VOID **) &SerialIo,
                  gSerialControllerDriver.DriverBindingHandle,
                  ControllerHandle,
                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
                  );
  if (EFI_ERROR (Status)) {
    return Status;
  }
  //
  // Get the Serial Controller's Device structure
  //
  SerialDevice = SERIAL_DEV_FROM_THIS (SerialIo);

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           SerialDevice->ControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gIsaSerialComponentName)
           );
}
Ejemplo n.º 5
0
/**
  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 4646 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
EmuGopComponentNameGetControllerName (
  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_GRAPHICS_OUTPUT_PROTOCOL  *GraphicsOutput;
  GOP_PRIVATE_DATA              *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,
             gEmuGopDriverBinding.DriverBindingHandle,
             &gEmuIoThunkProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return EFI_UNSUPPORTED;
  }
  //
  // Get our context back
  //
  Status = gBS->OpenProtocol (
                  ControllerHandle,
                  &gEfiGraphicsOutputProtocolGuid,
                  (VOID **)&GraphicsOutput,
                  gEmuGopDriverBinding.DriverBindingHandle,
                  ControllerHandle,
                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
                  );
  if (EFI_ERROR (Status)) {
    return EFI_UNSUPPORTED;
  }

  Private = GOP_PRIVATE_DATA_FROM_THIS (GraphicsOutput);

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           Private->ControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gEmuGopComponentName)
           );
}
Ejemplo n.º 6
0
/**
  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 4646 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
WinNtBlockIoComponentNameGetControllerName (
  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_BLOCK_IO_PROTOCOL   *BlockIo;
  WIN_NT_BLOCK_IO_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,
             gWinNtBlockIoDriverBinding.DriverBindingHandle,
             &gEfiWinNtIoProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return EFI_UNSUPPORTED;
  }
  //
  // Get our context back
  //
  Status = gBS->OpenProtocol (
                  ControllerHandle,
                  &gEfiBlockIoProtocolGuid,
                  (VOID **) &BlockIo,
                  gWinNtBlockIoDriverBinding.DriverBindingHandle,
                  ControllerHandle,
                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
                  );
  if (EFI_ERROR (Status)) {
    return EFI_UNSUPPORTED;
  }

  Private = WIN_NT_BLOCK_IO_PRIVATE_DATA_FROM_THIS (BlockIo);

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           Private->ControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gWinNtBlockIoComponentName)
           );
}
Ejemplo n.º 7
0
EFI_STATUS EFIAPI SampleComponentNameGetControllerName(IN EFI_COMPONENT_NAME_PROTOCOL *This, IN EFI_HANDLE ControllerHandle,
	IN EFI_HANDLE ChildHandle OPTIONAL, IN CHAR8 *Language, OUT CHAR16 **ControllerName) {
	if (ChildHandle != NULL)
		return EFI_UNSUPPORTED;

	EFI_STATUS efiStatus = EfiTestManagedDevice(ControllerHandle, gDriverBindingProtocol.DriverBindingHandle, &gEfiPciIoProtocolGuid);
	if (EFI_ERROR(efiStatus))
		return efiStatus;

	return LookupUnicodeString2(Language, This->SupportedLanguages, gDeviceNameTable, ControllerName, This == &gComponentNameProtocol);
}
Ejemplo n.º 8
0
/**
  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 4646 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 NULL.

  @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
Ps2MouseComponentNameGetControllerName (
    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_POINTER_PROTOCOL                 *SimplePointerProtocol;
    PS2_MOUSE_DEV                               *MouseDev;

    //
    // This is a device driver, so ChildHandle must be NULL.
    //
    if (ChildHandle != NULL) {
        return EFI_UNSUPPORTED;
    }
    //
    // Check Controller's handle
    //
    Status = EfiTestManagedDevice (ControllerHandle, gPS2MouseDriver.DriverBindingHandle, &gEfiSioProtocolGuid);

    if (EFI_ERROR (Status)) {
        return Status;
    }
    //
    // Get the device context
    //
    Status = gBS->OpenProtocol (
                 ControllerHandle,
                 &gEfiSimplePointerProtocolGuid,
                 (VOID **) &SimplePointerProtocol,
                 gPS2MouseDriver.DriverBindingHandle,
                 ControllerHandle,
                 EFI_OPEN_PROTOCOL_GET_PROTOCOL
             );
    if (EFI_ERROR (Status)) {
        return Status;
    }

    MouseDev = PS2_MOUSE_DEV_FROM_THIS (SimplePointerProtocol);

    return LookupUnicodeString2 (
               Language,
               This->SupportedLanguages,
               MouseDev->ControllerNameTable,
               ControllerName,
               (BOOLEAN)(This == &gPs2MouseComponentName)
           );
}
Ejemplo n.º 9
0
/**
  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.
  Currently not implemented.

  @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 4646 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 NULL.

  @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
UndiComponentNameGetControllerName (
  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_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL *Nii;

  if (ChildHandle != NULL) {
    return EFI_UNSUPPORTED;
  }

  //
  // Make sure this driver is currently managing ControllHandle
  //
  Status = EfiTestManagedDevice (
             ControllerHandle,
             gUndiDriverBinding.DriverBindingHandle,
             &gEfiPciIoProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  //
  // Retrieve an instance of a produced protocol from ControllerHandle
  //
  Status = gBS->OpenProtocol (
                   ControllerHandle,
                   &gEfiNetworkInterfaceIdentifierProtocolGuid_31,
                  (VOID **)&Nii,
                   NULL,
                   NULL,
                   EFI_OPEN_PROTOCOL_GET_PROTOCOL
                   );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           mUndiControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gUndiComponentName)
           );
}
Ejemplo n.º 10
0
/**
  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 4646 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 NULL.

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

  if (Language == NULL || ControllerName == NULL) {
    return EFI_INVALID_PARAMETER;
  }

  //
  // This is a device driver, so ChildHandle must be NULL.
  //
  if (ChildHandle != NULL) {
    return EFI_UNSUPPORTED;
  }

  //
  // Make sure this driver is currently managing Controller Handle
  //
  Status = EfiTestManagedDevice (
             ControllerHandle,
             gUfsHcDriverBinding.DriverBindingHandle,
             &gEfiPciIoProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           mUfsHcControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gUfsHcComponentName)
           );

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

  @param  This             A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
  @param  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.
  @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 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.

  @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 NULL.
  @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
XenPvBlkDxeComponentNameGetControllerName (
  IN  EFI_COMPONENT_NAME2_PROTOCOL  *This,
  IN  EFI_HANDLE                    ControllerHandle,
  IN  EFI_HANDLE                    ChildHandle        OPTIONAL,
  IN  CHAR8                         *Language,
  OUT CHAR16                        **ControllerName
  )
{
  EFI_STATUS  Status;

  //
  // ChildHandle must be NULL for a Device Driver
  //
  if (ChildHandle != NULL) {
    return EFI_UNSUPPORTED;
  }

  //
  // Make sure this driver is currently managing ControllerHandle
  //
  Status = EfiTestManagedDevice (
             ControllerHandle,
             gXenPvBlkDxeDriverBinding.DriverBindingHandle,
             &gXenBusProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  //
  // Lookup name of controller specified by ControllerHandle
  //
  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           mXenPvBlkDxeControllerNameTable,
           ControllerName,
           (BOOLEAN)(This != &gXenPvBlkDxeComponentName2)
           );
}
Ejemplo n.º 12
0
/**
  Retrieves a Unicode string that is the user readable name of the controller
  that is being managed by an EFI Driver.  

  @param This                   A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
  @param 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.
  @param ChildHandle OPTIONAL   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.
  
  @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 NULL.
  @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
IdeControllerComponentNameGetControllerName (
  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
  IN  EFI_HANDLE                                      ControllerHandle,
  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
  IN  CHAR8                                           *Language,
  OUT CHAR16                                          **ControllerName
  )
{
  EFI_STATUS            Status;

  //
  // Make sure this driver is currently managing ControllHandle
  //
  Status = EfiTestManagedDevice (
             ControllerHandle,
             gIdeControllerDriverBinding.DriverBindingHandle,
             &gEfiPciIoProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  if (ChildHandle != NULL) {
    return EFI_UNSUPPORTED;
  }

  return LookupUnicodeString2 (
          Language,
          This->SupportedLanguages,
          mIdeControllerControllerNameTable,
          ControllerName,
          (BOOLEAN)(This == &gIdeControllerComponentName)
          );
}
Ejemplo n.º 13
0
/**
  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 4646 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 NULL.

  @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
SdDxeComponentNameGetControllerName (
  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_BLOCK_IO_PROTOCOL     *BlockIo;
  SD_DEVICE                 *Device;
  EFI_UNICODE_STRING_TABLE  *ControllerNameTable;

  //
  // Make sure this driver is currently managing ControllHandle
  //
  Status = EfiTestManagedDevice (
             ControllerHandle,
             gSdDxeDriverBinding.DriverBindingHandle,
             &gEfiSdMmcPassThruProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  ControllerNameTable = mSdDxeControllerNameTable;
  if (ChildHandle != NULL) {
    Status = EfiTestChildHandle (
               ControllerHandle,
               ChildHandle,
               &gEfiSdMmcPassThruProtocolGuid
               );
    if (EFI_ERROR (Status)) {
      return Status;
    }
    //
    // Get the child context
    //
    Status = gBS->OpenProtocol (
                    ChildHandle,
                    &gEfiBlockIoProtocolGuid,
                    (VOID **) &BlockIo,
                    gSdDxeDriverBinding.DriverBindingHandle,
                    ChildHandle,
                    EFI_OPEN_PROTOCOL_GET_PROTOCOL
                    );
    if (EFI_ERROR (Status)) {
      return EFI_UNSUPPORTED;
    }

    Device = SD_DEVICE_DATA_FROM_BLKIO (BlockIo);
    ControllerNameTable = Device->ControllerNameTable;
  }

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           ControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gSdDxeComponentName)
           );
}
Ejemplo n.º 14
0
/**
  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 4646 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 NULL.

  @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
SerialComponentNameGetControllerName (
  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_SERIAL_IO_PROTOCOL    *SerialIo;
  SERIAL_DEV                *SerialDevice;
  EFI_UNICODE_STRING_TABLE  *ControllerNameTable;
  EFI_GUID                  *IoProtocolGuid;

  //
  // Make sure this driver is currently managing ControllerHandle
  //
  IoProtocolGuid = &gEfiSioProtocolGuid;
  Status = EfiTestManagedDevice (
             ControllerHandle,
             gSerialControllerDriver.DriverBindingHandle,
             IoProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    IoProtocolGuid = &gEfiPciIoProtocolGuid;
    Status = EfiTestManagedDevice (
               ControllerHandle,
               gSerialControllerDriver.DriverBindingHandle,
               IoProtocolGuid
               );
  }

  if (EFI_ERROR (Status)) {
    return Status;
  }

  ControllerNameTable = NULL;
  if (ChildHandle != NULL) {
    Status = EfiTestChildHandle (
               ControllerHandle,
               ChildHandle,
               IoProtocolGuid
               );
    if (EFI_ERROR (Status)) {
      return Status;
    }

    //
    // Get the Serial I/O Protocol from the child handle
    //
    Status = gBS->OpenProtocol (
                    ChildHandle,
                    &gEfiSerialIoProtocolGuid,
                    (VOID **) &SerialIo,
                    gSerialControllerDriver.DriverBindingHandle,
                    ChildHandle,
                    EFI_OPEN_PROTOCOL_GET_PROTOCOL
                    );
    if (EFI_ERROR (Status)) {
      return Status;
    }

    //
    // Get the Serial Controller's Device structure
    //
    SerialDevice = SERIAL_DEV_FROM_THIS (SerialIo);
    ControllerNameTable = SerialDevice->ControllerNameTable;
  }

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           ControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gPciSioSerialComponentName)
           );
}
Ejemplo n.º 15
0
/**
  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 4646 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
IDEBusComponentNameGetControllerName (
  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_BLOCK_IO_PROTOCOL *BlockIo;
  IDE_BLK_IO_DEV        *IdeBlkIoDevice;

  //
  // Make sure this driver is currently managing ControllHandle
  //
  Status = EfiTestManagedDevice (
             ControllerHandle,
             gIDEBusDriverBinding.DriverBindingHandle,
             &gEfiIdeControllerInitProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  if (ChildHandle == NULL) {
    return LookupUnicodeString2 (
             Language,
             This->SupportedLanguages,
             mIDEBusControllerNameTable,
             ControllerName,
             (BOOLEAN)(This == &gIDEBusComponentName)
             );
  }

  Status = EfiTestChildHandle (
             ControllerHandle,
             ChildHandle,
             &gEfiPciIoProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  //
  // Get the child context
  //
  Status = gBS->OpenProtocol (
                  ChildHandle,
                  &gEfiBlockIoProtocolGuid,
                  (VOID **) &BlockIo,
                  gIDEBusDriverBinding.DriverBindingHandle,
                  ChildHandle,
                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
                  );
  if (EFI_ERROR (Status)) {
    return EFI_UNSUPPORTED;
  }

  IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (BlockIo);

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           IdeBlkIoDevice->ControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gIDEBusComponentName)
           );
}
Ejemplo n.º 16
0
EFI_STATUS
EFIAPI
UnixSerialIoComponentNameGetControllerName (
  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 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.
    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;
  EFI_SERIAL_IO_PROTOCOL        *SerialIo;
  UNIX_SERIAL_IO_PRIVATE_DATA *Private;

  //
  // Make sure this driver is currently managing ControllHandle
  //
  Status = EfiTestManagedDevice (
             ControllerHandle,
             gUnixSerialIoDriverBinding.DriverBindingHandle,
             &gEfiUnixIoProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  //
  // This is a bus driver, so ChildHandle must not be NULL.
  //
  if (ChildHandle == NULL) {
    return EFI_UNSUPPORTED;
  }

  Status = EfiTestChildHandle (
             ControllerHandle,
             ChildHandle,
             &gEfiUnixIoProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  //
  // Get our context back
  //
  Status = gBS->OpenProtocol (
                  ChildHandle,
                  &gEfiSerialIoProtocolGuid,
                  (VOID**)&SerialIo,
                  gUnixSerialIoDriverBinding.DriverBindingHandle,
                  ChildHandle,
                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
                  );
  if (EFI_ERROR (Status)) {
    return EFI_UNSUPPORTED;
  }

  Private = UNIX_SERIAL_IO_PRIVATE_DATA_FROM_THIS (SerialIo);

  return LookupUnicodeString (
          Language,
          gUnixSerialIoComponentName.SupportedLanguages,
          Private->ControllerNameTable,
          ControllerName
          );
}
Ejemplo n.º 17
0
/**
  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[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
                                EFI_COMPONENT_NAME_PROTOCOL instance.
  @param[in]  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.
  @param[in]  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[in]  Language          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 4646 or ISO 639-2 language code format.
  @param[out]  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.

  @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 NULL.
  @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
IsaFloppyComponentNameGetControllerName (
  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_BLOCK_IO_PROTOCOL  *BlkIo;
  FDC_BLK_IO_DEV         *FdcDev;

  if (Language == NULL || ControllerName == NULL) {
    return EFI_INVALID_PARAMETER;
  }
  //
  // This is a device driver, so ChildHandle must be NULL.
  //
  if (ChildHandle != NULL) {
    return EFI_UNSUPPORTED;
  }

  //
  // Check if this driver is currently managing ControllerHandle
  //
  Status = EfiTestManagedDevice (
             ControllerHandle,
             gFdcControllerDriver.DriverBindingHandle,
             &gEfiIsaIoProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  //
  // Get the device context
  //
  Status = gBS->OpenProtocol (
                  ControllerHandle,
                  &gEfiBlockIoProtocolGuid,
                  (VOID **) &BlkIo,
                  gFdcControllerDriver.DriverBindingHandle,
                  ControllerHandle,
                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
                  );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  FdcDev = FDD_BLK_IO_FROM_THIS (BlkIo);

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           FdcDev->ControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gIsaFloppyComponentName)
           );
}
Ejemplo n.º 18
0
EFI_STATUS
EFIAPI
FatUnload (
  IN EFI_HANDLE  ImageHandle
  )
/*++

Routine Description:

  Unload function for this image. Uninstall DriverBinding protocol.

Arguments:

  ImageHandle           - Handle for the image of this driver.

Returns:

  EFI_SUCCESS           - Driver unloaded successfully.
  other                 - Driver can not unloaded.

--*/
{
  EFI_STATUS  Status;
  EFI_HANDLE  *DeviceHandleBuffer;
  UINTN       DeviceHandleCount;
  UINTN       Index;
  VOID        *ComponentName;
  VOID        *ComponentName2;

  Status = gBS->LocateHandleBuffer (
                  AllHandles,
                  NULL,
                  NULL,
                  &DeviceHandleCount,
                  &DeviceHandleBuffer
                  );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  for (Index = 0; Index < DeviceHandleCount; Index++) {
    Status = EfiTestManagedDevice (DeviceHandleBuffer[Index], ImageHandle, &gEfiDiskIoProtocolGuid);
    if (!EFI_ERROR (Status)) {
      Status = gBS->DisconnectController (
                      DeviceHandleBuffer[Index],
                      ImageHandle,
                      NULL
                      );
      if (EFI_ERROR (Status)) {
        break;
      }
    }
  }

  if (Index == DeviceHandleCount) {
    //
    // Driver is stopped successfully.
    //
    Status = gBS->HandleProtocol (ImageHandle, &gEfiComponentNameProtocolGuid, &ComponentName);
    if (EFI_ERROR (Status)) {
      ComponentName = NULL;
    }

    Status = gBS->HandleProtocol (ImageHandle, &gEfiComponentName2ProtocolGuid, &ComponentName2);
    if (EFI_ERROR (Status)) {
      ComponentName2 = NULL;
    }

    if (ComponentName == NULL) {
      if (ComponentName2 == NULL) {
        Status = gBS->UninstallMultipleProtocolInterfaces (
                        ImageHandle,
                        &gEfiDriverBindingProtocolGuid,  &gFatDriverBinding,
                        NULL
                        );
      } else {
        Status = gBS->UninstallMultipleProtocolInterfaces (
                        ImageHandle,
                        &gEfiDriverBindingProtocolGuid,  &gFatDriverBinding,
                        &gEfiComponentName2ProtocolGuid, ComponentName2,
                        NULL
                        );
      }
    } else {
      if (ComponentName2 == NULL) {
        Status = gBS->UninstallMultipleProtocolInterfaces (
                        ImageHandle,
                        &gEfiDriverBindingProtocolGuid,  &gFatDriverBinding,
                        &gEfiComponentNameProtocolGuid,  ComponentName,
                        NULL
                        );
      } else {
        Status = gBS->UninstallMultipleProtocolInterfaces (
                        ImageHandle,
                        &gEfiDriverBindingProtocolGuid,  &gFatDriverBinding,
                        &gEfiComponentNameProtocolGuid,  ComponentName,
                        &gEfiComponentName2ProtocolGuid, ComponentName2,
                        NULL
                        );
      }
    }
  }

  if (DeviceHandleBuffer != NULL) {
    FreePool (DeviceHandleBuffer);
  }

  return Status;
}
Ejemplo n.º 19
0
/**
  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 4646 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
EmuBusDriverComponentNameGetControllerName (
  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
  IN  EFI_HANDLE                                      ControllerHandle,
  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
  IN  CHAR8                                           *Language,
  OUT CHAR16                                          **ControllerName
  )
{
  EFI_STATUS              Status;
  EMU_IO_THUNK_PROTOCOL   *EmuIo;
  EMU_IO_DEVICE           *Private;

  //
  // Make sure this driver is currently managing ControllHandle
  //
  Status = EfiTestManagedDevice (
             ControllerHandle,
             gEmuBusDriverBinding.DriverBindingHandle,
             &gEmuThunkProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  //
  // This is a bus driver, so ChildHandle can not be NULL.
  //
  if (ChildHandle == NULL) {
    return EFI_UNSUPPORTED;
  }

  Status = EfiTestChildHandle (
             ControllerHandle,
             ChildHandle,
             &gEmuThunkProtocolGuid
             );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  //
  // Get our context back
  //
  Status = gBS->OpenProtocol (
                  ChildHandle,
                  &gEmuIoThunkProtocolGuid,
                  (VOID**)&EmuIo,
                  gEmuBusDriverBinding.DriverBindingHandle,
                  ChildHandle,
                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
                  );
  if (EFI_ERROR (Status)) {
    return EFI_UNSUPPORTED;
  }

  Private = EMU_IO_DEVICE_FROM_THIS (EmuIo);

  return LookupUnicodeString2 (
           Language,
           This->SupportedLanguages,
           Private->ControllerNameTable,
           ControllerName,
           (BOOLEAN)(This == &gEmuBusDriverComponentName)
          );
}