| 1 | /** @file
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| 2 | Provides a GUID and a data structure that can be used with EFI_FILE_PROTOCOL.GetInfo()
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| 3 | or EFI_FILE_PROTOCOL.SetInfo() to get or set information about the system's volume.
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| 4 | This GUID is defined in UEFI specification.
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| 5 |
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| 6 | Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
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| 7 | This program and the accompanying materials are licensed and made available under
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| 8 | the terms and conditions of the BSD License that accompanies this distribution.
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| 9 | The full text of the license may be found at
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| 10 | http://opensource.org/licenses/bsd-license.php.
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| 11 |
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| 12 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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| 13 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 14 |
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| 15 | **/
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| 16 |
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| 17 | #ifndef __FILE_SYSTEM_INFO_H__
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| 18 | #define __FILE_SYSTEM_INFO_H__
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| 19 |
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| 20 | #define EFI_FILE_SYSTEM_INFO_ID \
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| 21 | { \
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| 22 | 0x9576e93, 0x6d3f, 0x11d2, {0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \
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| 23 | }
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| 24 |
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| 25 | typedef struct {
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| 26 | ///
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| 27 | /// The size of the EFI_FILE_SYSTEM_INFO structure, including the Null-terminated VolumeLabel string.
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| 28 | ///
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| 29 | UINT64 Size;
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| 30 | ///
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| 31 | /// TRUE if the volume only supports read access.
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| 32 | ///
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| 33 | BOOLEAN ReadOnly;
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| 34 | ///
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| 35 | /// The number of bytes managed by the file system.
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| 36 | ///
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| 37 | UINT64 VolumeSize;
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| 38 | ///
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| 39 | /// The number of available bytes for use by the file system.
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| 40 | ///
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| 41 | UINT64 FreeSpace;
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| 42 | ///
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| 43 | /// The nominal block size by which files are typically grown.
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| 44 | ///
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| 45 | UINT32 BlockSize;
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| 46 | ///
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| 47 | /// The Null-terminated string that is the volume's label.
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| 48 | ///
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| 49 | CHAR16 VolumeLabel[1];
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| 50 | } EFI_FILE_SYSTEM_INFO;
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| 51 |
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| 52 | ///
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| 53 | /// The VolumeLabel field of the EFI_FILE_SYSTEM_INFO data structure is variable length.
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| 54 | /// Whenever code needs to know the size of the EFI_FILE_SYSTEM_INFO data structure, it needs
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| 55 | /// to be the size of the data structure without the VolumeLable field. The following macro
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| 56 | /// computes this size correctly no matter how big the VolumeLable array is declared.
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| 57 | /// This is required to make the EFI_FILE_SYSTEM_INFO data structure ANSI compilant.
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| 58 | ///
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| 59 | #define SIZE_OF_EFI_FILE_SYSTEM_INFO OFFSET_OF (EFI_FILE_SYSTEM_INFO, VolumeLabel)
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| 60 |
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| 61 | extern EFI_GUID gEfiFileSystemInfoGuid;
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| 62 |
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| 63 | #endif
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