mirror of
https://git.proxmox.com/git/mirror_edk2
synced 2025-10-31 20:43:59 +00:00
daefd574f9
Implement the resizing of the file with SetInfo(). Implement the renaming of a file with SetInfo(). Allow to seek past the end of a file. The support of file resizing implies a rework of the read, write and close functions. So does the support of seeking past the end of a file. That why those two changes are done in the same patch. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ronald Cron <ronald.cron@arm.com> Reviewed-By: Olivier Martin <olivier.martin@arm.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16244 6f19259b-4bc3-4df7-8a09-765794883524
253 lines
9.8 KiB
C
253 lines
9.8 KiB
C
/** @file
|
|
Support a Semi Host file system over a debuggers JTAG
|
|
|
|
Copyright (c) 2008 - 2009, Apple Inc. 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 __SEMIHOST_FS_H__
|
|
#define __SEMIHOST_FS_H__
|
|
|
|
EFI_STATUS
|
|
VolumeOpen (
|
|
IN EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *This,
|
|
OUT EFI_FILE **Root
|
|
);
|
|
|
|
/**
|
|
Open a file on the host system by means of the semihosting interface.
|
|
|
|
@param[in] This A pointer to the EFI_FILE_PROTOCOL instance that is
|
|
the file handle to source location.
|
|
@param[out] NewHandle A pointer to the location to return the opened
|
|
handle for the new file.
|
|
@param[in] FileName The Null-terminated string of the name of the file
|
|
to be opened.
|
|
@param[in] OpenMode The mode to open the file : Read or Read/Write or
|
|
Read/Write/Create
|
|
@param[in] Attributes Only valid for EFI_FILE_MODE_CREATE, in which case these
|
|
are the attribute bits for the newly created file. The
|
|
mnemonics of the attribute bits are : EFI_FILE_READ_ONLY,
|
|
EFI_FILE_HIDDEN, EFI_FILE_SYSTEM, EFI_FILE_RESERVED,
|
|
EFI_FILE_DIRECTORY and EFI_FILE_ARCHIVE.
|
|
|
|
@retval EFI_SUCCESS The file was open.
|
|
@retval EFI_NOT_FOUND The specified file could not be found.
|
|
@retval EFI_DEVICE_ERROR The last issued semi-hosting operation failed.
|
|
@retval EFI_WRITE_PROTECTED Attempt to create a directory. This is not possible
|
|
with the semi-hosting interface.
|
|
@retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the file.
|
|
@retval EFI_INVALID_PARAMETER At least one of the parameters is invalid.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
FileOpen (
|
|
IN EFI_FILE *This,
|
|
OUT EFI_FILE **NewHandle,
|
|
IN CHAR16 *FileName,
|
|
IN UINT64 OpenMode,
|
|
IN UINT64 Attributes
|
|
);
|
|
|
|
/**
|
|
Close a specified file handle.
|
|
|
|
@param[in] This A pointer to the EFI_FILE_PROTOCOL instance that is the file
|
|
handle to close.
|
|
|
|
@retval EFI_SUCCESS The file was closed.
|
|
@retval EFI_INVALID_PARAMETER The parameter "This" is NULL.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
FileClose (
|
|
IN EFI_FILE *This
|
|
);
|
|
|
|
/**
|
|
Close and delete a file.
|
|
|
|
@param[in] This A pointer to the EFI_FILE_PROTOCOL instance that is the file
|
|
handle to delete.
|
|
|
|
@retval EFI_SUCCESS The file was closed and deleted.
|
|
@retval EFI_WARN_DELETE_FAILURE The handle was closed, but the file was not deleted.
|
|
@retval EFI_INVALID_PARAMETER The parameter "This" is NULL.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
FileDelete (
|
|
IN EFI_FILE *This
|
|
);
|
|
|
|
/**
|
|
Read data from an open file.
|
|
|
|
@param[in] This A pointer to the EFI_FILE_PROTOCOL instance that
|
|
is the file handle to read data from.
|
|
@param[in out] 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[out] Buffer The buffer into which the data is read.
|
|
|
|
@retval EFI_SUCCESS The data was read.
|
|
@retval EFI_DEVICE_ERROR On entry, the current file position is
|
|
beyond the end of the file, or the semi-hosting
|
|
interface reported an error while performing the
|
|
read operation.
|
|
@retval EFI_INVALID_PARAMETER The parameter "This" or the parameter "Buffer"
|
|
is NULL.
|
|
**/
|
|
EFI_STATUS
|
|
FileRead (
|
|
IN EFI_FILE *This,
|
|
IN OUT UINTN *BufferSize,
|
|
OUT VOID *Buffer
|
|
);
|
|
|
|
/**
|
|
Write data to an open file.
|
|
|
|
@param[in] This A pointer to the EFI_FILE_PROTOCOL instance that
|
|
is the file handle to write data to.
|
|
@param[in out] BufferSize On input, the size of the Buffer. On output, the
|
|
size of the data actually written. In both cases,
|
|
the size is measured in bytes.
|
|
@param[in] Buffer The buffer of data to write.
|
|
|
|
@retval EFI_SUCCESS The data was written.
|
|
@retval EFI_ACCESS_DENIED Attempt to write into a read only file or
|
|
in a file opened in read only mode.
|
|
@retval EFI_DEVICE_ERROR The last issued semi-hosting operation failed.
|
|
@retval EFI_INVALID_PARAMETER The parameter "This" or the parameter "Buffer"
|
|
is NULL.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
FileWrite (
|
|
IN EFI_FILE *This,
|
|
IN OUT UINTN *BufferSize,
|
|
IN VOID *Buffer
|
|
);
|
|
|
|
/**
|
|
Return a file's current position.
|
|
|
|
@param[in] This A pointer to the EFI_FILE_PROTOCOL instance that is
|
|
the file handle to get the current position on.
|
|
@param[out] Position The address to return the file's current position value.
|
|
|
|
@retval EFI_SUCCESS The position was returned.
|
|
@retval EFI_INVALID_PARAMETER Position is a NULL pointer.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
FileGetPosition (
|
|
IN EFI_FILE *File,
|
|
OUT UINT64 *Position
|
|
);
|
|
|
|
/**
|
|
Set a file's current position.
|
|
|
|
@param[in] This A pointer to the EFI_FILE_PROTOCOL instance that is
|
|
the file handle to set the requested position on.
|
|
@param[in] Position The byte position from the start of the file to set.
|
|
|
|
@retval EFI_SUCCESS The position was set.
|
|
@retval EFI_DEVICE_ERROR The semi-hosting positionning operation failed.
|
|
@retval EFI_UNSUPPORTED The seek request for nonzero is not valid on open
|
|
directories.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
FileSetPosition (
|
|
IN EFI_FILE *File,
|
|
IN UINT64 Position
|
|
);
|
|
|
|
/**
|
|
Return information about a file or a file system.
|
|
|
|
@param[in] This A pointer to the EFI_FILE_PROTOCOL instance that
|
|
is the file handle the requested information is for.
|
|
@param[in] InformationType The type identifier for the information being requested :
|
|
EFI_FILE_INFO_ID or EFI_FILE_SYSTEM_INFO_ID or
|
|
EFI_FILE_SYSTEM_VOLUME_LABEL_ID
|
|
@param[in out] BufferSize The size, in bytes, of Buffer.
|
|
@param[out] Buffer A pointer to the data buffer to return. The type of the
|
|
data inside the buffer is indicated by InformationType.
|
|
|
|
@retval EFI_SUCCESS The information was returned.
|
|
@retval EFI_UNSUPPORTED The InformationType is not known.
|
|
@retval EFI_BUFFER_TOO_SMALL The BufferSize is too small to return the information.
|
|
BufferSize has been updated with the size needed to
|
|
complete the request.
|
|
@retval EFI_INVALID_PARAMETER The parameter "This" or the parameter "Buffer"
|
|
is NULL.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
FileGetInfo (
|
|
IN EFI_FILE *This,
|
|
IN EFI_GUID *InformationType,
|
|
IN OUT UINTN *BufferSize,
|
|
OUT VOID *Buffer
|
|
);
|
|
|
|
/**
|
|
Set information about a file or a file system.
|
|
|
|
@param[in] This A pointer to the EFI_FILE_PROTOCOL instance that
|
|
is the file handle the information is for.
|
|
@param[in] InformationType The type identifier for the information being set :
|
|
EFI_FILE_INFO_ID or EFI_FILE_SYSTEM_INFO_ID or
|
|
EFI_FILE_SYSTEM_VOLUME_LABEL_ID
|
|
@param[in] BufferSize The size, in bytes, of Buffer.
|
|
@param[in] Buffer A pointer to the data buffer to write. The type of the
|
|
data inside the buffer is indicated by InformationType.
|
|
|
|
@retval EFI_SUCCESS The information was set.
|
|
@retval EFI_UNSUPPORTED The InformationType is not known.
|
|
@retval EFI_DEVICE_ERROR The last issued semi-hosting operation failed.
|
|
@retval EFI_ACCESS_DENIED An attempt is being made to change the
|
|
EFI_FILE_DIRECTORY Attribute.
|
|
@retval EFI_ACCESS_DENIED InformationType is EFI_FILE_INFO_ID and
|
|
the file is a read-only file or has been
|
|
opened in read-only mode and an attempt is
|
|
being made to modify a field other than
|
|
Attribute.
|
|
@retval EFI_ACCESS_DENIED An attempt is made to change the name of a file
|
|
to a file that is already present.
|
|
@retval EFI_WRITE_PROTECTED An attempt is being made to modify a
|
|
read-only attribute.
|
|
@retval EFI_BAD_BUFFER_SIZE The size of the buffer is lower than that indicated by
|
|
the data inside the buffer.
|
|
@retval EFI_OUT_OF_RESOURCES An allocation needed to process the request failed.
|
|
@retval EFI_INVALID_PARAMETER At least one of the parameters is invalid.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
FileSetInfo (
|
|
IN EFI_FILE *This,
|
|
IN EFI_GUID *InformationType,
|
|
IN UINTN BufferSize,
|
|
IN VOID *Buffer
|
|
);
|
|
|
|
EFI_STATUS
|
|
FileFlush (
|
|
IN EFI_FILE *File
|
|
);
|
|
|
|
#endif // __SEMIHOST_FS_H__
|
|
|