mirror of https://github.com/acidanthera/audk.git
376 lines
10 KiB
C
376 lines
10 KiB
C
/*++
|
|
|
|
Copyright (c) 2004, Intel Corporation
|
|
All rights reserved. This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions of the BSD License
|
|
which accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
Module Name:
|
|
|
|
SimpleFileSystem.h
|
|
|
|
Abstract:
|
|
|
|
SimpleFileSystem protocol as defined in the EFI 1.0 specification.
|
|
|
|
The SimpleFileSystem protocol is the programatic access to the FAT (12,16,32)
|
|
file system specified in EFI 1.0. It can also be used to abstract a file
|
|
system other than FAT.
|
|
|
|
EFI 1.0 can boot from any valid EFI image contained in a SimpleFileSystem
|
|
|
|
--*/
|
|
|
|
#ifndef _SIMPLE_FILE_SYSTEM_H_
|
|
#define _SIMPLE_FILE_SYSTEM_H_
|
|
|
|
#define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \
|
|
{ \
|
|
0x964e5b22, 0x6459, 0x11d2, {0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b} \
|
|
}
|
|
|
|
EFI_FORWARD_DECLARATION (EFI_SIMPLE_FILE_SYSTEM_PROTOCOL);
|
|
EFI_FORWARD_DECLARATION (EFI_FILE);
|
|
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_VOLUME_OPEN) (
|
|
IN EFI_SIMPLE_FILE_SYSTEM_PROTOCOL * This,
|
|
OUT EFI_FILE **Root
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Open the root directory on a volume.
|
|
|
|
Arguments:
|
|
This - Protocol instance pointer.
|
|
Root - Returns an Open file handle for the root directory
|
|
|
|
Returns:
|
|
EFI_SUCCESS - The device was opened.
|
|
EFI_UNSUPPORTED - This volume does not suppor the file system.
|
|
EFI_NO_MEDIA - The device has no media.
|
|
EFI_DEVICE_ERROR - The device reported an error.
|
|
EFI_VOLUME_CORRUPTED - The file system structures are corrupted
|
|
EFI_ACCESS_DENIED - The service denied access to the file
|
|
EFI_OUT_OF_RESOURCES - The volume was not opened due to lack of resources
|
|
|
|
--*/
|
|
;
|
|
|
|
#define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION 0x00010000
|
|
|
|
struct _EFI_SIMPLE_FILE_SYSTEM_PROTOCOL {
|
|
UINT64 Revision;
|
|
EFI_VOLUME_OPEN OpenVolume;
|
|
};
|
|
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_FILE_OPEN) (
|
|
IN EFI_FILE * File,
|
|
OUT EFI_FILE **NewHandle,
|
|
IN CHAR16 *FileName,
|
|
IN UINT64 OpenMode,
|
|
IN UINT64 Attributes
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Open the root directory on a volume.
|
|
|
|
Arguments:
|
|
File - Protocol instance pointer.
|
|
NewHandle - Returns File Handle for FileName
|
|
FileName - Null terminated string. "\", ".", and ".." are supported
|
|
OpenMode - Open mode for file.
|
|
Attributes - Only used for EFI_FILE_MODE_CREATE
|
|
|
|
Returns:
|
|
EFI_SUCCESS - The device was opened.
|
|
EFI_NOT_FOUND - The specified file could not be found on the device
|
|
EFI_NO_MEDIA - The device has no media.
|
|
EFI_MEDIA_CHANGED - The media has changed
|
|
EFI_DEVICE_ERROR - The device reported an error.
|
|
EFI_VOLUME_CORRUPTED - The file system structures are corrupted
|
|
EFI_ACCESS_DENIED - The service denied access to the file
|
|
EFI_OUT_OF_RESOURCES - The volume was not opened due to lack of resources
|
|
EFI_VOLUME_FULL - The volume is full.
|
|
|
|
--*/
|
|
;
|
|
|
|
//
|
|
// Open modes
|
|
//
|
|
#define EFI_FILE_MODE_READ 0x0000000000000001
|
|
#define EFI_FILE_MODE_WRITE 0x0000000000000002
|
|
#define EFI_FILE_MODE_CREATE 0x8000000000000000
|
|
|
|
//
|
|
// File attributes
|
|
//
|
|
#define EFI_FILE_READ_ONLY 0x0000000000000001
|
|
#define EFI_FILE_HIDDEN 0x0000000000000002
|
|
#define EFI_FILE_SYSTEM 0x0000000000000004
|
|
#define EFI_FILE_RESERVED 0x0000000000000008
|
|
#define EFI_FILE_DIRECTORY 0x0000000000000010
|
|
#define EFI_FILE_ARCHIVE 0x0000000000000020
|
|
#define EFI_FILE_VALID_ATTR 0x0000000000000037
|
|
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_FILE_CLOSE) (
|
|
IN EFI_FILE * File
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Close the file handle
|
|
|
|
Arguments:
|
|
File - Protocol instance pointer.
|
|
|
|
Returns:
|
|
EFI_SUCCESS- The device was opened.
|
|
|
|
--*/
|
|
;
|
|
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_FILE_DELETE) (
|
|
IN EFI_FILE * File
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Close and delete the file handle
|
|
|
|
Arguments:
|
|
File - Protocol instance pointer.
|
|
|
|
Returns:
|
|
EFI_SUCCESS - The device was opened.
|
|
EFI_WARN_DELETE_FAILURE - The handle was closed but the file was not
|
|
deleted
|
|
|
|
--*/
|
|
;
|
|
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_FILE_READ) (
|
|
IN EFI_FILE * File,
|
|
IN OUT UINTN *BufferSize,
|
|
OUT VOID *Buffer
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Read data from the file.
|
|
|
|
Arguments:
|
|
File - Protocol instance pointer.
|
|
BufferSize - On input size of buffer, on output amount of data in
|
|
buffer.
|
|
Buffer - The buffer in which data is read.
|
|
|
|
Returns:
|
|
EFI_SUCCESS - Data was read.
|
|
EFI_NO_MEDIA - The device has no media
|
|
EFI_DEVICE_ERROR - The device reported an error
|
|
EFI_VOLUME_CORRUPTED - The file system structures are corrupted
|
|
EFI_BUFFER_TO_SMALL - BufferSize is too small. BufferSize contains
|
|
required size
|
|
|
|
--*/
|
|
;
|
|
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_FILE_WRITE) (
|
|
IN EFI_FILE * File,
|
|
IN OUT UINTN *BufferSize,
|
|
IN VOID *Buffer
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Write data from to the file.
|
|
|
|
Arguments:
|
|
File - Protocol instance pointer.
|
|
BufferSize - On input size of buffer, on output amount of data in buffer.
|
|
Buffer - The buffer in which data to write.
|
|
|
|
Returns:
|
|
EFI_SUCCESS - Data was written.
|
|
EFI_UNSUPPORT - Writes to Open directory are not supported
|
|
EFI_NO_MEDIA - The device has no media
|
|
EFI_DEVICE_ERROR - The device reported an error
|
|
EFI_VOLUME_CORRUPTED - The file system structures are corrupted
|
|
EFI_WRITE_PROTECTED - The device is write protected
|
|
EFI_ACCESS_DENIED - The file was open for read only
|
|
EFI_VOLUME_FULL - The volume is full
|
|
|
|
--*/
|
|
;
|
|
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_FILE_SET_POSITION) (
|
|
IN EFI_FILE * File,
|
|
IN UINT64 Position
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Set a files current position
|
|
|
|
Arguments:
|
|
File - Protocol instance pointer.
|
|
Position - Byte possition from the start of the file
|
|
|
|
Returns:
|
|
EFI_SUCCESS - Data was written.
|
|
EFI_UNSUPPORTED - Seek request for non-zero is not valid on open.
|
|
|
|
--*/
|
|
;
|
|
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_FILE_GET_POSITION) (
|
|
IN EFI_FILE * File,
|
|
OUT UINT64 *Position
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Get a files current position
|
|
|
|
Arguments:
|
|
File - Protocol instance pointer.
|
|
Position - Byte possition from the start of the file
|
|
|
|
Returns:
|
|
EFI_SUCCESS - Data was written.
|
|
EFI_UNSUPPORTED - Seek request for non-zero is not valid on open.
|
|
|
|
--*/
|
|
;
|
|
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_FILE_GET_INFO) (
|
|
IN EFI_FILE * File,
|
|
IN EFI_GUID * InformationType,
|
|
IN OUT UINTN *BufferSize,
|
|
OUT VOID *Buffer
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Get information about a file
|
|
|
|
Arguments:
|
|
File - Protocol instance pointer.
|
|
InformationType - Type of info to return in Buffer
|
|
BufferSize - On input size of buffer, on output amount of data in
|
|
buffer.
|
|
Buffer - The buffer to return data.
|
|
|
|
Returns:
|
|
EFI_SUCCESS - Data was returned.
|
|
EFI_UNSUPPORT - InformationType is not supported
|
|
EFI_NO_MEDIA - The device has no media
|
|
EFI_DEVICE_ERROR - The device reported an error
|
|
EFI_VOLUME_CORRUPTED - The file system structures are corrupted
|
|
EFI_WRITE_PROTECTED - The device is write protected
|
|
EFI_ACCESS_DENIED - The file was open for read only
|
|
EFI_BUFFER_TOO_SMALL - Buffer was too small, required size returned in
|
|
BufferSize
|
|
--*/
|
|
;
|
|
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_FILE_SET_INFO) (
|
|
IN EFI_FILE * File,
|
|
IN EFI_GUID * InformationType,
|
|
IN UINTN BufferSize,
|
|
IN VOID *Buffer
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Set information about a file
|
|
|
|
Arguments:
|
|
File - Protocol instance pointer.
|
|
InformationType - Type of info in Buffer
|
|
BufferSize - Size of buffer.
|
|
Buffer - The data to write.
|
|
|
|
Returns:
|
|
EFI_SUCCESS - Data was returned.
|
|
EFI_UNSUPPORT - InformationType is not supported
|
|
EFI_NO_MEDIA - The device has no media
|
|
EFI_DEVICE_ERROR - The device reported an error
|
|
EFI_VOLUME_CORRUPTED - The file system structures are corrupted
|
|
EFI_WRITE_PROTECTED - The device is write protected
|
|
EFI_ACCESS_DENIED - The file was open for read only
|
|
--*/
|
|
;
|
|
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_FILE_FLUSH) (
|
|
IN EFI_FILE * File
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Flush data back for the file handle
|
|
|
|
Arguments:
|
|
File - Protocol instance pointer.
|
|
|
|
Returns:
|
|
EFI_SUCCESS - Data was written.
|
|
EFI_UNSUPPORT - Writes to Open directory are not supported
|
|
EFI_NO_MEDIA - The device has no media
|
|
EFI_DEVICE_ERROR - The device reported an error
|
|
EFI_VOLUME_CORRUPTED - The file system structures are corrupted
|
|
EFI_WRITE_PROTECTED - The device is write protected
|
|
EFI_ACCESS_DENIED - The file was open for read only
|
|
EFI_VOLUME_FULL - The volume is full
|
|
|
|
--*/
|
|
;
|
|
|
|
#define EFI_FILE_HANDLE_REVISION 0x00010000
|
|
typedef struct _EFI_FILE {
|
|
UINT64 Revision;
|
|
EFI_FILE_OPEN Open;
|
|
EFI_FILE_CLOSE Close;
|
|
EFI_FILE_DELETE Delete;
|
|
EFI_FILE_READ Read;
|
|
EFI_FILE_WRITE Write;
|
|
EFI_FILE_GET_POSITION GetPosition;
|
|
EFI_FILE_SET_POSITION SetPosition;
|
|
EFI_FILE_GET_INFO GetInfo;
|
|
EFI_FILE_SET_INFO SetInfo;
|
|
EFI_FILE_FLUSH Flush;
|
|
} *EFI_FILE_HANDLE;
|
|
|
|
extern EFI_GUID gEfiSimpleFileSystemProtocolGuid;
|
|
|
|
#endif
|