mirror of https://github.com/acidanthera/audk.git
51 lines
2.5 KiB
Plaintext
51 lines
2.5 KiB
Plaintext
## @file
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# Public definitions for PcAtChipset package.
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#
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# This package is designed to public interfaces and implementation which follows
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# PcAt defacto standard.
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#
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# Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
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#
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# This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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# which accompanies this distribution. 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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#
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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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#
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##
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[Defines]
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DEC_SPECIFICATION = 0x00010005
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PACKAGE_NAME = PcAtChipsetPkg
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PACKAGE_GUID = B728689A-52D3-4b8c-AE89-2CE5514CC6DC
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PACKAGE_VERSION = 0.1
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[PcdsFixedAtBuild]
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## Pcd8259LegacyModeMask defines the default mask value for platform. This value is determined
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# 1) If platform only support pure UEFI, value should be set to 0xFFFF or 0xFFFE;
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# Because only clock interrupt is allowed in legacy mode in pure UEFI platform.
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# 2) If platform install CSM and use thunk module:
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# a) If thunk call provided by CSM binary requires some legacy interrupt support, the corresponding bit
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# should be opened as 0.
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# For example, if keyboard interfaces provided CSM binary use legacy keyboard interrupt in 8259 bit 2, then
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# the value should be set to 0xFFFC
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# b) If all thunk call provied by CSM binary do not require legacy interrupt support, value should be set
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# to 0xFFFF or 0xFFFE.
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#
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# Because the value is used as intialization value, PCD's type should be FixedAtBuild.
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#
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# The default value of legacy mode mask could be changed by EFI_LEGACY_8259_PROTOCOL->SetMask(). But it is rarely
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# need change it except some special cases such as when initializing the CSM binary, it should be set to 0xFFFF to
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# mask all legacy interrupt. Please restore the original legacy mask value if changing is made for these special case.
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#
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gPcAtChipsetPkgTokenSpaceGuid.Pcd8259LegacyModeMask|0xFFFF|UINT16|0x00000001
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## Pcd8259LegacyModeEdgeLevel defines the default edge level for legacy mode's interrrupt controller.
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gPcAtChipsetPkgTokenSpaceGuid.Pcd8259LegacyModeEdgeLevel|0x0000|UINT16|0x00000002
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[Guids]
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gPcAtChipsetPkgTokenSpaceGuid = { 0x326ae723, 0xae32, 0x4589, { 0x98, 0xb8, 0xca, 0xc2, 0x3c, 0xdc, 0xc1, 0xb1 } }
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