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/** @file
Defines data structure that is the volume header found at the beginning of
all firmware volumes that are either memory mapped, or have an
associated FirmwareVolumeBlock protocol.
Copyright (c) 2006, 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: FirmwareVolumeHeader.h
@par Revision Reference:
These definitions are from Firmware Volume Block Spec 0.9.
**/
#ifndef __EFI_FIRMWARE_VOLUME_HEADER_H__
#define __EFI_FIRMWARE_VOLUME_HEADER_H__
//
// Firmware Volume Block Attributes definition
//
typedef UINT32 EFI_FVB_ATTRIBUTES;
//
// Firmware Volume Block Attributes bit definitions
//
#define EFI_FVB_READ_DISABLED_CAP 0x00000001
#define EFI_FVB_READ_ENABLED_CAP 0x00000002
#define EFI_FVB_READ_STATUS 0x00000004
#define EFI_FVB_WRITE_DISABLED_CAP 0x00000008
#define EFI_FVB_WRITE_ENABLED_CAP 0x00000010
#define EFI_FVB_WRITE_STATUS 0x00000020
#define EFI_FVB_LOCK_CAP 0x00000040
#define EFI_FVB_LOCK_STATUS 0x00000080
#define EFI_FVB_STICKY_WRITE 0x00000200
#define EFI_FVB_MEMORY_MAPPED 0x00000400
#define EFI_FVB_ERASE_POLARITY 0x00000800
#define EFI_FVB_ALIGNMENT_CAP 0x00008000
#define EFI_FVB_ALIGNMENT_2 0x00010000
#define EFI_FVB_ALIGNMENT_4 0x00020000
#define EFI_FVB_ALIGNMENT_8 0x00040000
#define EFI_FVB_ALIGNMENT_16 0x00080000
#define EFI_FVB_ALIGNMENT_32 0x00100000
#define EFI_FVB_ALIGNMENT_64 0x00200000
#define EFI_FVB_ALIGNMENT_128 0x00400000
#define EFI_FVB_ALIGNMENT_256 0x00800000
#define EFI_FVB_ALIGNMENT_512 0x01000000
#define EFI_FVB_ALIGNMENT_1K 0x02000000
#define EFI_FVB_ALIGNMENT_2K 0x04000000
#define EFI_FVB_ALIGNMENT_4K 0x08000000
#define EFI_FVB_ALIGNMENT_8K 0x10000000
#define EFI_FVB_ALIGNMENT_16K 0x20000000
#define EFI_FVB_ALIGNMENT_32K 0x40000000
#define EFI_FVB_ALIGNMENT_64K 0x80000000
#define EFI_FVB_CAPABILITIES (EFI_FVB_READ_DISABLED_CAP | \
EFI_FVB_READ_ENABLED_CAP | \
EFI_FVB_WRITE_DISABLED_CAP | \
EFI_FVB_WRITE_ENABLED_CAP | \
EFI_FVB_LOCK_CAP \
)
#define EFI_TEST_FFS_ATTRIBUTES_BIT(FvbAttributes, TestAttributes, Bit) \
( \
(BOOLEAN) ( \
(FvbAttributes & EFI_FVB_ERASE_POLARITY) ? (((~TestAttributes) & Bit) == Bit) : ((TestAttributes & Bit) == Bit) \
) \
)
#define EFI_FVB_STATUS (EFI_FVB_READ_STATUS | EFI_FVB_WRITE_STATUS | EFI_FVB_LOCK_STATUS)
///
/// Firmware Volume Header Revision definition
///
#define EFI_FVH_REVISION 0x01
///
/// Firmware Volume Header Signature definition
///
#define EFI_FVH_SIGNATURE EFI_SIGNATURE_32 ('_', 'F', 'V', 'H')
///
/// Firmware Volume Header Block Map Entry definition
///
typedef struct {
UINT32 NumBlocks;
UINT32 BlockLength;
} EFI_FV_BLOCK_MAP_ENTRY;
///
/// Firmware Volume Header definition
///
typedef struct {
UINT8 ZeroVector[16];
EFI_GUID FileSystemGuid;
UINT64 FvLength;
UINT32 Signature;
EFI_FVB_ATTRIBUTES Attributes;
UINT16 HeaderLength;
UINT16 Checksum;
UINT8 Reserved[3];
UINT8 Revision;
EFI_FV_BLOCK_MAP_ENTRY FvBlockMap[1];
} EFI_FIRMWARE_VOLUME_HEADER;
#endif
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