#/** @file # Public definitions for PcAtChipset package. # # This package is designed to public interfaces and implementation which follows # PcAt defacto standard. # # Copyright (c) 2009, 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. # #**/ [Defines] DEC_SPECIFICATION = 0x00010005 PACKAGE_NAME = PcAtChipsetPkg PACKAGE_GUID = B728689A-52D3-4b8c-AE89-2CE5514CC6DC PACKAGE_VERSION = 0.1 [PcdsFixedAtBuild.common] ## Pcd8259LegacyModeMask defines the default mask value for platform. This value is determined # 1) If platform only support pure UEFI, value should be set to 0xFFFF or 0xFFFE; # Because only clock interrupt is allowed in legacy mode in pure UEFI platform. # 2) If platform install CSM and use thunk module: # a) If thunk call provided by CSM binary requires some legacy interrupt support, the corresponding bit # should be opened as 0. # For example, if keyboard interfaces provided CSM binary use legacy keyboard interrupt in 8259 bit 2, then # the value should be set to 0xFFFC # b) If all thunk call provied by CSM binary do not require legacy interrupt support, value should be set # to 0xFFFF or 0xFFFE. # # Because the value is used as intialization value, PCD's type should be FixedAtBuild. # # The default value of legacy mode mask could be changed by EFI_LEGACY_8259_PROTOCOL->SetMask(). But it is rarely # need change it except some special cases such as when initializing the CSM binary, it should be set to 0xFFFF to # mask all legacy interrupt. Please restore the original legacy mask value if changing is made for these special case. # gPcAtChipsetPkgTokenSpaceGuid.Pcd8259LegacyModeMask|0x00000001|UINT16|0xFFFF [Guids.common] gPcAtChipsetPkgTokenSpaceGuid = { 0x326ae723, 0xae32, 0x4589, { 0x98, 0xb8, 0xca, 0xc2, 0x3c, 0xdc, 0xc1, 0xb1 } }