| /** @file |
| Provides a GUID and a data structure that can be used with EFI_FILE_PROTOCOL.GetInfo() |
| or EFI_FILE_PROTOCOL.SetInfo() to get or set information about the system's volume. |
| This GUID is defined in UEFI specification. |
| |
| Copyright (c) 2006 - 2010, 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 that 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 __FILE_SYSTEM_INFO_H__ |
| #define __FILE_SYSTEM_INFO_H__ |
| |
| FILE_LICENCE ( BSD3 ); |
| |
| #define EFI_FILE_SYSTEM_INFO_ID \ |
| { \ |
| 0x9576e93, 0x6d3f, 0x11d2, {0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \ |
| } |
| |
| typedef struct { |
| /// |
| /// The size of the EFI_FILE_SYSTEM_INFO structure, including the Null-terminated VolumeLabel string. |
| /// |
| UINT64 Size; |
| /// |
| /// TRUE if the volume only supports read access. |
| /// |
| BOOLEAN ReadOnly; |
| /// |
| /// The number of bytes managed by the file system. |
| /// |
| UINT64 VolumeSize; |
| /// |
| /// The number of available bytes for use by the file system. |
| /// |
| UINT64 FreeSpace; |
| /// |
| /// The nominal block size by which files are typically grown. |
| /// |
| UINT32 BlockSize; |
| /// |
| /// The Null-terminated string that is the volume's label. |
| /// |
| CHAR16 VolumeLabel[1]; |
| } EFI_FILE_SYSTEM_INFO; |
| |
| /// |
| /// The VolumeLabel field of the EFI_FILE_SYSTEM_INFO data structure is variable length. |
| /// Whenever code needs to know the size of the EFI_FILE_SYSTEM_INFO data structure, it needs |
| /// to be the size of the data structure without the VolumeLable field. The following macro |
| /// computes this size correctly no matter how big the VolumeLable array is declared. |
| /// This is required to make the EFI_FILE_SYSTEM_INFO data structure ANSI compilant. |
| /// |
| #define SIZE_OF_EFI_FILE_SYSTEM_INFO OFFSET_OF (EFI_FILE_SYSTEM_INFO, VolumeLabel) |
| |
| extern EFI_GUID gEfiFileSystemInfoGuid; |
| |
| #endif |