diff options
Diffstat (limited to 'MdeModulePkg/Universal/FvSimpleFileSystemDxe/FvSimpleFileSystemInternal.h')
| -rw-r--r-- | MdeModulePkg/Universal/FvSimpleFileSystemDxe/FvSimpleFileSystemInternal.h | 622 |
1 files changed, 622 insertions, 0 deletions
diff --git a/MdeModulePkg/Universal/FvSimpleFileSystemDxe/FvSimpleFileSystemInternal.h b/MdeModulePkg/Universal/FvSimpleFileSystemDxe/FvSimpleFileSystemInternal.h new file mode 100644 index 0000000000..c8da5f68fd --- /dev/null +++ b/MdeModulePkg/Universal/FvSimpleFileSystemDxe/FvSimpleFileSystemInternal.h @@ -0,0 +1,622 @@ +/** @file
+ The internal header file of FvSimpleFileSystem driver.
+
+Copyright (c) 2014, ARM Limited. All rights reserved.
+Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
+
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef __FVFS_INTERNAL_H__
+#define __FVFS_INTERNAL_H__
+
+#include <Uefi.h>
+#include <PiDxe.h>
+
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PrintLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+
+#include <Protocol/DriverBinding.h>
+#include <Protocol/FirmwareVolume2.h>
+#include <Protocol/SimpleFileSystem.h>
+#include <Protocol/UnicodeCollation.h>
+
+#include <Guid/FileSystemInfo.h>
+#include <Guid/FileInfo.h>
+#include <Guid/FileSystemVolumeLabelInfo.h>
+
+typedef struct _FV_FILESYSTEM_FILE FV_FILESYSTEM_FILE;
+typedef struct _FV_FILESYSTEM_FILE_INFO FV_FILESYSTEM_FILE_INFO;
+typedef struct _FV_FILESYSTEM_INSTANCE FV_FILESYSTEM_INSTANCE;
+
+//
+// Struct representing an instance of the "filesystem". There will be one of
+// these structs per FV.
+//
+struct _FV_FILESYSTEM_INSTANCE {
+ UINT32 Signature;
+ LIST_ENTRY FileInfoHead;
+ LIST_ENTRY FileHead;
+ EFI_DRIVER_BINDING_PROTOCOL *DriverBinding;
+ EFI_FIRMWARE_VOLUME2_PROTOCOL *FvProtocol;
+ EFI_SIMPLE_FILE_SYSTEM_PROTOCOL SimpleFs;
+ FV_FILESYSTEM_FILE *Root;
+ CHAR16 *VolumeLabel;
+};
+
+//
+// Struct representing a opening file. Each opening operation on file will
+// create such an instance except for the "root directory", which will only
+// be created once for each FV.
+//
+struct _FV_FILESYSTEM_FILE {
+ UINT32 Signature;
+ LIST_ENTRY Link;
+ FV_FILESYSTEM_FILE_INFO *DirReadNext;
+ FV_FILESYSTEM_INSTANCE *Instance;
+ EFI_FILE_PROTOCOL FileProtocol;
+ FV_FILESYSTEM_FILE_INFO *FvFileInfo;
+ UINT64 Position;
+};
+
+//
+// Struct representing the info of a file.
+//
+struct _FV_FILESYSTEM_FILE_INFO {
+ UINT32 Signature;
+ LIST_ENTRY Link;
+ EFI_GUID NameGuid;
+ EFI_FV_FILETYPE Type;
+ EFI_FILE_INFO FileInfo;
+};
+
+#define FVFS_FILE_SIGNATURE SIGNATURE_32 ('f', 'v', 'f', 'i')
+#define FVFS_FILE_INFO_SIGNATURE SIGNATURE_32 ('f', 'v', 'i', 'n')
+#define FVFS_INSTANCE_SIGNATURE SIGNATURE_32 ('f', 'v', 'f', 's')
+
+#define FVFS_INSTANCE_FROM_SIMPLE_FS_THIS(This) CR ( \
+ This, \
+ FV_FILESYSTEM_INSTANCE, \
+ SimpleFs, \
+ FVFS_INSTANCE_SIGNATURE \
+ )
+
+#define FVFS_FILE_FROM_FILE_THIS(This) CR ( \
+ This, \
+ FV_FILESYSTEM_FILE, \
+ FileProtocol, \
+ FVFS_FILE_SIGNATURE \
+ )
+
+#define FVFS_FILE_INFO_FROM_LINK(This) CR ( \
+ This, \
+ FV_FILESYSTEM_FILE_INFO, \
+ Link, \
+ FVFS_FILE_INFO_SIGNATURE \
+ )
+
+#define FVFS_FILE_FROM_LINK(FileLink) CR (FileLink, FV_FILESYSTEM_FILE, Link, FVFS_FILE_SIGNATURE)
+
+#define FVFS_GET_FIRST_FILE(Instance) FVFS_FILE_FROM_LINK (GetFirstNode (&Instance->FileHead))
+
+#define FVFS_GET_FIRST_FILE_INFO(Instance) FVFS_FILE_INFO_FROM_LINK (GetFirstNode (&Instance->FileInfoHead))
+
+
+#define FV_FILETYPE_IS_EXECUTABLE(Type) ((Type) == EFI_FV_FILETYPE_PEIM || \
+ (Type) == EFI_FV_FILETYPE_DRIVER || \
+ (Type) == EFI_FV_FILETYPE_COMBINED_PEIM_DRIVER || \
+ (Type) == EFI_FV_FILETYPE_APPLICATION)
+
+/**
+ Open the root directory on a volume.
+
+ @param This A pointer to the volume to open the root directory.
+ @param RootFile A pointer to the location to return the opened file handle for the
+ root directory.
+
+ @retval EFI_SUCCESS The device was opened.
+ @retval EFI_UNSUPPORTED This volume does not support the requested file system type.
+ @retval EFI_NO_MEDIA The device has no medium.
+ @retval EFI_DEVICE_ERROR The device reported an error.
+ @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
+ @retval EFI_ACCESS_DENIED The service denied access to the file.
+ @retval EFI_OUT_OF_RESOURCES The volume was not opened due to lack of resources.
+ @retval EFI_MEDIA_CHANGED The device has a different medium in it or the medium is no
+ longer supported. Any existing file handles for this volume are
+ no longer valid. To access the files on the new medium, the
+ volume must be reopened with OpenVolume().
+
+**/
+EFI_STATUS
+EFIAPI
+FvSimpleFileSystemOpenVolume (
+ IN EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *This,
+ OUT EFI_FILE_PROTOCOL **RootFile
+ );
+
+/**
+ Test to see if this driver supports ControllerHandle.
+
+ @param DriverBinding Protocol instance pointer.
+ @param ControllerHandle Handle of device to test
+ @param RemainingDevicePath Optional parameter use to pick a specific child
+ device to start.
+
+ @retval EFI_SUCCESS This driver supports this device
+ @retval EFI_ALREADY_STARTED This driver is already running on this device
+ @retval other This driver does not support this device
+
+**/
+EFI_STATUS
+EFIAPI
+FvSimpleFileSystemDriverSupported (
+ IN EFI_DRIVER_BINDING_PROTOCOL *DriverBinding,
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
+ );
+
+/**
+ Start this driver on ControllerHandle by opening a FV protocol and
+ installing a SimpleFileSystem protocol on ControllerHandle.
+
+ @param DriverBinding Protocol instance pointer.
+ @param ControllerHandle Handle of device to bind driver to
+ @param RemainingDevicePath Optional parameter use to pick a specific child
+ device to start.
+
+ @retval EFI_SUCCESS This driver is added to ControllerHandle
+ @retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
+ @retval other This driver does not support this device
+
+**/
+EFI_STATUS
+EFIAPI
+FvSimpleFileSystemDriverStart (
+ IN EFI_DRIVER_BINDING_PROTOCOL *DriverBinding,
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
+ );
+
+/**
+ Stop this driver on ControllerHandle by removing SimpleFileSystem protocol and closing
+ the FV protocol on ControllerHandle.
+
+ @param DriverBinding Protocol instance pointer.
+ @param ControllerHandle Handle of device to stop driver on
+ @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
+ children is zero stop the entire bus driver.
+ @param ChildHandleBuffer List of Child Handles to Stop.
+
+ @retval EFI_SUCCESS This driver is removed ControllerHandle
+ @retval other This driver was not removed from this device
+
+**/
+EFI_STATUS
+EFIAPI
+FvSimpleFileSystemDriverStop (
+ IN EFI_DRIVER_BINDING_PROTOCOL *DriverBinding,
+ IN EFI_HANDLE ControllerHandle,
+ IN UINTN NumberOfChildren,
+ IN EFI_HANDLE *ChildHandleBuffer OPTIONAL
+ );
+
+/**
+ Opens a new file relative to the source file's location.
+
+ @param This A pointer to the EFI_FILE_PROTOCOL instance that is the file
+ handle to the source location. This would typically be an open
+ handle to a directory.
+ @param NewHandle A pointer to the location to return the opened handle for the new
+ file.
+ @param FileName The Null-terminated string of the name of the file to be opened.
+ The file name may contain the following path modifiers: "\", ".",
+ and "..".
+ @param OpenMode The mode to open the file. The only valid combinations that the
+ file may be opened with are: Read, Read/Write, or Create/Read/Write.
+ @param Attributes Only valid for EFI_FILE_MODE_CREATE, in which case these are the
+ attribute bits for the newly created file.
+
+ @retval EFI_SUCCESS The file was opened.
+ @retval EFI_NOT_FOUND The specified file could not be found on the device.
+ @retval EFI_NO_MEDIA The device has no medium.
+ @retval EFI_MEDIA_CHANGED The device has a different medium in it or the medium is no
+ longer supported.
+ @retval EFI_DEVICE_ERROR The device reported an error.
+ @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
+ @retval EFI_WRITE_PROTECTED An attempt was made to create a file, or open a file for write
+ when the media is write-protected.
+ @retval EFI_ACCESS_DENIED The service denied access to the file.
+ @retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the file.
+ @retval EFI_VOLUME_FULL The volume is full.
+
+**/
+EFI_STATUS
+EFIAPI
+FvSimpleFileSystemOpen (
+ IN EFI_FILE_PROTOCOL *This,
+ OUT EFI_FILE_PROTOCOL **NewHandle,
+ IN CHAR16 *FileName,
+ IN UINT64 OpenMode,
+ IN UINT64 Attributes
+ );
+
+/**
+ Closes a specified file handle.
+
+ @param This A pointer to the EFI_FILE_PROTOCOL instance that is the file
+ handle to close.
+
+ @retval EFI_SUCCESS The file was closed.
+
+**/
+EFI_STATUS
+EFIAPI
+FvSimpleFileSystemClose (
+ IN EFI_FILE_PROTOCOL *This
+ );
+
+/**
+ Reads data from a file.
+
+ @param This A pointer to the EFI_FILE_PROTOCOL instance that is the file
+ handle to read data from.
+ @param BufferSize On input, the size of the Buffer. On output, the amount of data
+ returned in Buffer. In both cases, the size is measured in bytes.
+ @param Buffer The buffer into which the data is read.
+
+ @retval EFI_SUCCESS Data was read.
+ @retval EFI_NO_MEDIA The device has no medium.
+ @retval EFI_DEVICE_ERROR The device reported an error.
+ @retval EFI_DEVICE_ERROR An attempt was made to read from a deleted file.
+ @retval EFI_DEVICE_ERROR On entry, the current file position is beyond the end of the file.
+ @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
+ @retval EFI_BUFFER_TOO_SMALL The BufferSize is too small to read the current directory
+ entry. BufferSize has been updated with the size
+ needed to complete the request.
+
+**/
+EFI_STATUS
+EFIAPI
+FvSimpleFileSystemRead (
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ OUT VOID *Buffer
+ );
+
+/**
+ Writes data to a file.
+
+ @param This A pointer to the EFI_FILE_PROTOCOL instance that is the file
+ handle to write data to.
+ @param BufferSize On input, the size of the Buffer. On output, the amount of data
+ actually written. In both cases, the size is measured in bytes.
+ @param Buffer The buffer of data to write.
+
+ @retval EFI_SUCCESS Data was written.
+ @retval EFI_UNSUPPORTED Writes to open directory files are not supported.
+ @retval EFI_NO_MEDIA The device has no medium.
+ @retval EFI_DEVICE_ERROR The device reported an error.
+ @retval EFI_DEVICE_ERROR An attempt was made to write to a deleted file.
+ @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
+ @retval EFI_WRITE_PROTECTED The file or medium is write-protected.
+ @retval EFI_ACCESS_DENIED The file was opened read only.
+ @retval EFI_VOLUME_FULL The volume is full.
+
+**/
+EFI_STATUS
+EFIAPI
+FvSimpleFileSystemWrite (
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ IN VOID *Buffer
+ );
+
+/**
+ Returns a file's current position.
+
+ @param This A pointer to the EFI_FILE_PROTOCOL instance that is the file
+ handle to get the current position on.
+ @param Position The address to return the file's current position value.
+
+ @retval EFI_SUCCESS The position was returned.
+ @retval EFI_UNSUPPORTED The request is not valid on open directories.
+ @retval EFI_DEVICE_ERROR An attempt was made to get the position from a deleted file.
+
+**/
+EFI_STATUS
+EFIAPI
+FvSimpleFileSystemGetPosition (
+ IN EFI_FILE_PROTOCOL *This,
+ OUT UINT64 *Position
+ );
+
+/**
+ Sets a file's current position.
+
+ @param This A pointer to the EFI_FILE_PROTOCOL instance that is the
+ file handle to set the requested position on.
+ @param Position The byte position from the start of the file to set.
+
+ @retval EFI_SUCCESS The position was set.
+ @retval EFI_UNSUPPORTED The seek request for nonzero is not valid on open
+ directories.
+ @retval EFI_DEVICE_ERROR An attempt was made to set the position of a deleted file.
+
+**/
+EFI_STATUS
+EFIAPI
+FvSimpleFileSystemSetPosition (
+ IN EFI_FILE_PROTOCOL *This,
+ IN UINT64 Position
+ );
+
+/**
+ Flushes all modified data associated with a file to a device.
+
+ @param This A pointer to the EFI_FILE_PROTOCOL instance that is the file
+ handle to flush.
+
+ @retval EFI_SUCCESS The data was flushed.
+ @retval EFI_NO_MEDIA The device has no medium.
+ @retval EFI_DEVICE_ERROR The device reported an error.
+ @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
+ @retval EFI_WRITE_PROTECTED The file or medium is write-protected.
+ @retval EFI_ACCESS_DENIED The file was opened read-only.
+ @retval EFI_VOLUME_FULL The volume is full.
+
+**/
+EFI_STATUS
+EFIAPI
+FvSimpleFileSystemFlush (
+ IN EFI_FILE_PROTOCOL *This
+ );
+
+/**
+ Close and delete the file handle.
+
+ @param This A pointer to the EFI_FILE_PROTOCOL instance that is the
+ handle to the file to delete.
+
+ @retval EFI_SUCCESS The file was closed and deleted, and the handle was closed.
+ @retval EFI_WARN_DELETE_FAILURE The handle was closed, but the file was not deleted.
+
+**/
+EFI_STATUS
+EFIAPI
+FvSimpleFileSystemDelete (
+ IN EFI_FILE_PROTOCOL *This
+ );
+
+/**
+ Returns information about a file.
+
+ @param This A pointer to the EFI_FILE_PROTOCOL instance that is the file
+ handle the requested information is for.
+ @param InformationType The type identifier for the information being requested.
+ @param BufferSize On input, the size of Buffer. On output, the amount of data
+ returned in Buffer. In both cases, the size is measured in bytes.
+ @param Buffer A pointer to the data buffer to return. The buffer's type is
+ indicated by InformationType.
+
+ @retval EFI_SUCCESS The information was returned.
+ @retval EFI_UNSUPPORTED The InformationType is not known.
+ @retval EFI_NO_MEDIA The device has no medium.
+ @retval EFI_DEVICE_ERROR The device reported an error.
+ @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
+ @retval EFI_BUFFER_TOO_SMALL The BufferSize is too small to read the current directory entry.
+ BufferSize has been updated with the size needed to complete
+ the request.
+**/
+EFI_STATUS
+EFIAPI
+FvSimpleFileSystemGetInfo (
+ IN EFI_FILE_PROTOCOL *This,
+ IN EFI_GUID *InformationType,
+ IN OUT UINTN *BufferSize,
+ OUT VOID *Buffer
+ );
+
+/**
+ Sets information about a file.
+
+ @param This A pointer to the EFI_FILE_PROTOCOL instance that is the file
+ handle the information is for.
+ @param InformationType The type identifier for the information being set.
+ @param BufferSize The size, in bytes, of Buffer.
+ @param Buffer A pointer to the data buffer to write. The buffer's type is
+ indicated by InformationType.
+
+ @retval EFI_SUCCESS The information was set.
+ @retval EFI_UNSUPPORTED The InformationType is not known.
+ @retval EFI_NO_MEDIA The device has no medium.
+ @retval EFI_DEVICE_ERROR The device reported an error.
+ @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
+ @retval EFI_WRITE_PROTECTED InformationType is EFI_FILE_INFO_ID and the media is
+ read-only.
+ @retval EFI_WRITE_PROTECTED InformationType is EFI_FILE_PROTOCOL_SYSTEM_INFO_ID
+ and the media is read only.
+ @retval EFI_WRITE_PROTECTED InformationType is EFI_FILE_SYSTEM_VOLUME_LABEL_ID
+ and the media is read-only.
+ @retval EFI_ACCESS_DENIED An attempt is made to change the name of a file to a
+ file that is already present.
+ @retval EFI_ACCESS_DENIED An attempt is being made to change the EFI_FILE_DIRECTORY
+ Attribute.
+ @retval EFI_ACCESS_DENIED An attempt is being made to change the size of a directory.
+ @retval EFI_ACCESS_DENIED InformationType is EFI_FILE_INFO_ID and the file was opened
+ read-only and an attempt is being made to modify a field
+ other than Attribute.
+ @retval EFI_VOLUME_FULL The volume is full.
+ @retval EFI_BAD_BUFFER_SIZE BufferSize is smaller than the size of the type indicated
+ by InformationType.
+
+**/
+EFI_STATUS
+EFIAPI
+FvSimpleFileSystemSetInfo (
+ IN EFI_FILE_PROTOCOL *This,
+ IN EFI_GUID *InformationType,
+ IN UINTN BufferSize,
+ IN VOID *Buffer
+ );
+
+/**
+ Get the size of the buffer that will be returned by FvFsReadFile.
+
+ @param FvProtocol A pointer to the EFI_FIRMWARE_VOLUME2_PROTOCOL instance.
+ @param FvFileInfo A pointer to the FV_FILESYSTEM_FILE_INFO instance that is a struct
+ representing a file's info.
+
+ @retval EFI_SUCCESS The file size was gotten correctly.
+ @retval Others The file size wasn't gotten correctly.
+
+**/
+EFI_STATUS
+FvFsGetFileSize (
+ IN EFI_FIRMWARE_VOLUME2_PROTOCOL *FvProtocol,
+ IN OUT FV_FILESYSTEM_FILE_INFO *FvFileInfo
+ );
+
+/**
+ Retrieves a Unicode string that is the user readable name of the driver.
+
+ This function retrieves the user readable name of a driver in the form of a
+ Unicode string. If the driver specified by This has a user readable name in
+ the language specified by Language, then a pointer to the driver name is
+ returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
+ by This does not support the language specified by Language,
+ then EFI_UNSUPPORTED is returned.
+
+ @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
+ EFI_COMPONENT_NAME_PROTOCOL instance.
+
+ @param Language[in] A pointer to a Null-terminated ASCII string
+ array indicating the language. This is the
+ language of the driver name that the caller is
+ requesting, and it must match one of the
+ languages specified in SupportedLanguages. The
+ number of languages supported by a driver is up
+ to the driver writer. Language is specified
+ in RFC 4646 or ISO 639-2 language code format.
+
+ @param DriverName[out] A pointer to the Unicode string to return.
+ This Unicode string is the name of the
+ driver specified by This in the language
+ specified by Language.
+
+ @retval EFI_SUCCESS The Unicode string for the Driver specified by
+ This and the language specified by Language was
+ returned in DriverName.
+
+ @retval EFI_INVALID_PARAMETER Language is NULL.
+
+ @retval EFI_INVALID_PARAMETER DriverName is NULL.
+
+ @retval EFI_UNSUPPORTED The driver specified by This does not support
+ the language specified by Language.
+
+**/
+EFI_STATUS
+EFIAPI
+FvSimpleFileSystemComponentNameGetDriverName (
+ IN EFI_COMPONENT_NAME_PROTOCOL *This,
+ IN CHAR8 *Language,
+ OUT CHAR16 **DriverName
+ );
+
+/**
+ 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
+FvSimpleFileSystemComponentNameGetControllerName (
+ IN EFI_COMPONENT_NAME_PROTOCOL *This,
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_HANDLE ChildHandle OPTIONAL,
+ IN CHAR8 *Language,
+ OUT CHAR16 **ControllerName
+ );
+
+extern EFI_UNICODE_COLLATION_PROTOCOL *mUnicodeCollation;
+extern EFI_FILE_PROTOCOL mFileSystemTemplate;
+extern EFI_COMPONENT_NAME_PROTOCOL gFvSimpleFileSystemComponentName;
+extern EFI_COMPONENT_NAME2_PROTOCOL gFvSimpleFileSystemComponentName2;
+
+#endif
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