| klu2 | 31ed75a | 2009-07-06 02:59:37 +0000 | [diff] [blame^] | 1 | #/** @file
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| 2 | # Public definitions for PcAtChipset package.
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| 3 | #
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| 4 | # This package is designed to public interfaces and implementation which follows
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| 5 | # PcAt defacto standard.
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| 6 | #
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| 7 | # Copyright (c) 2009, Intel Corporation.
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| 8 | #
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| 9 | # All rights reserved. This program and the accompanying materials
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| 10 | # are licensed and made available under the terms and conditions of the BSD License
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| 11 | # which accompanies this distribution. The full text of the license may be found at
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| 12 | # http://opensource.org/licenses/bsd-license.php
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| 13 | #
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| 14 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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| 15 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 16 | #
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| 17 | #**/
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| 18 |
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| 19 | [Defines]
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| 20 | DEC_SPECIFICATION = 0x00010005
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| 21 | PACKAGE_NAME = PcAtChipsetPkg
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| 22 | PACKAGE_GUID = B728689A-52D3-4b8c-AE89-2CE5514CC6DC
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| 23 | PACKAGE_VERSION = 0.1
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| 24 |
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| 25 | [PcdsFixedAtBuild.common]
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| 26 | ## Pcd8259LegacyModeMask defines the default mask value for platform. This value is determined
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| 27 | # 1) If platform only support pure UEFI, value should be set to 0xFFFF or 0xFFFE;
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| 28 | # Because only clock interrupt is allowed in legacy mode in pure UEFI platform.
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| 29 | # 2) If platform install CSM and use thunk module:
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| 30 | # a) If thunk call provided by CSM binary requires some legacy interrupt support, the corresponding bit
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| 31 | # should be opened as 0.
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| 32 | # For example, if keyboard interfaces provided CSM binary use legacy keyboard interrupt in 8259 bit 2, then
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| 33 | # the value should be set to 0xFFFC
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| 34 | # b) If all thunk call provied by CSM binary do not require legacy interrupt support, value should be set
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| 35 | # to 0xFFFF or 0xFFFE.
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| 36 | #
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| 37 | # Because the value is used as intialization value, PCD's type should be FixedAtBuild.
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| 38 | #
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| 39 | # The default value of legacy mode mask could be changed by EFI_LEGACY_8259_PROTOCOL->SetMask(). But it is rarely
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| 40 | # 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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| 41 | # mask all legacy interrupt. Please restore the original legacy mask value if changing is made for these special case.
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| 42 | #
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| 43 | gPcAtChipsetPkgTokenSpaceGuid.Pcd8259LegacyModeMask|0x00000001|UINT16|0xFFFF
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| 44 |
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| 45 | [Guids.common]
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| 46 | gPcAtChipsetPkgTokenSpaceGuid = { 0x326ae723, 0xae32, 0x4589, { 0x98, 0xb8, 0xca, 0xc2, 0x3c, 0xdc, 0xc1, 0xb1 } }
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| 47 |
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