2b3687dbb5
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10404 6f19259b-4bc3-4df7-8a09-765794883524
86 lines
3.6 KiB
C
86 lines
3.6 KiB
C
/** @file
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Defines the data structure that is the volume header found at the beginning of
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all firmware volumes that are either memory mapped or have an
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associated FirmwareVolumeBlock protocol.
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Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License that accompanies this distribution.
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The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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@par Revision Reference:
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These definitions are from the Firmware Volume Block Spec 0.9.
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**/
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#ifndef __EFI_FIRMWARE_VOLUME_HEADER_H__
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#define __EFI_FIRMWARE_VOLUME_HEADER_H__
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///
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/// Firmware Volume Block Attributes bit definitions.
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///@{
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#define EFI_FVB_READ_DISABLED_CAP 0x00000001
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#define EFI_FVB_READ_ENABLED_CAP 0x00000002
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#define EFI_FVB_READ_STATUS 0x00000004
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#define EFI_FVB_WRITE_DISABLED_CAP 0x00000008
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#define EFI_FVB_WRITE_ENABLED_CAP 0x00000010
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#define EFI_FVB_WRITE_STATUS 0x00000020
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#define EFI_FVB_LOCK_CAP 0x00000040
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#define EFI_FVB_LOCK_STATUS 0x00000080
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#define EFI_FVB_STICKY_WRITE 0x00000200
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#define EFI_FVB_MEMORY_MAPPED 0x00000400
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#define EFI_FVB_ERASE_POLARITY 0x00000800
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#define EFI_FVB_ALIGNMENT_CAP 0x00008000
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#define EFI_FVB_ALIGNMENT_2 0x00010000
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#define EFI_FVB_ALIGNMENT_4 0x00020000
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#define EFI_FVB_ALIGNMENT_8 0x00040000
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#define EFI_FVB_ALIGNMENT_16 0x00080000
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#define EFI_FVB_ALIGNMENT_32 0x00100000
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#define EFI_FVB_ALIGNMENT_64 0x00200000
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#define EFI_FVB_ALIGNMENT_128 0x00400000
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#define EFI_FVB_ALIGNMENT_256 0x00800000
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#define EFI_FVB_ALIGNMENT_512 0x01000000
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#define EFI_FVB_ALIGNMENT_1K 0x02000000
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#define EFI_FVB_ALIGNMENT_2K 0x04000000
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#define EFI_FVB_ALIGNMENT_4K 0x08000000
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#define EFI_FVB_ALIGNMENT_8K 0x10000000
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#define EFI_FVB_ALIGNMENT_16K 0x20000000
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#define EFI_FVB_ALIGNMENT_32K 0x40000000
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#define EFI_FVB_ALIGNMENT_64K 0x80000000
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///@}
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/// This is a simple macro defined as the set of all FV Block Attributes signifying capabilities.
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#define EFI_FVB_CAPABILITIES ( EFI_FVB_READ_DISABLED_CAP | \
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EFI_FVB_READ_ENABLED_CAP | \
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EFI_FVB_WRITE_DISABLED_CAP | \
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EFI_FVB_WRITE_ENABLED_CAP | \
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EFI_FVB_LOCK_CAP \
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)
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/** A parameterized macro defining a boolean expression that tests the state of a particular bit.
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*
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* @param FvbAttributes Indicates a test for CLEAR if EFI_FVB_ERASE_POLARITY is 1, else test for SET.
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*
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* @param TestAttributes The set of bits to test.
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*
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* @param Bit A value indicating the bit(s) to test.
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* If multiple bits are set, the logical OR of their tests is the expression's value.
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**/
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#define EFI_TEST_FFS_ATTRIBUTES_BIT( FvbAttributes, TestAttributes, Bit) \
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((BOOLEAN) \
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((FvbAttributes & EFI_FVB_ERASE_POLARITY) ? (((~TestAttributes) & Bit) == Bit) : ((TestAttributes & Bit) == Bit)) \
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)
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/// A simple macro defined as the set of all FV Block Attribute bits that indicate status.
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#define EFI_FVB_STATUS (EFI_FVB_READ_STATUS | EFI_FVB_WRITE_STATUS | EFI_FVB_LOCK_STATUS)
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#endif /* __EFI_FIRMWARE_VOLUME_HEADER_H__ */
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