PcAtChipsetPkg/PcAtChipsetPkg.dec

   1 #/** @file
   2 # Public definitions for PcAtChipset package.
   3 #
   4 # This package is designed to public interfaces and implementation which follows
   5 # PcAt defacto standard.
   6 #
   7 # Copyright (c) 2009, Intel Corporation.
   8 #
   9 # All rights reserved. This program and the accompanying materials
  10 # are licensed and made available under the terms and conditions of the BSD License
  11 # which accompanies this distribution. The full text of the license may be found at
  12 # http://opensource.org/licenses/bsd-license.php
  13 #
  14 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  15 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  16 #
  17 #**/
  18
  19 [Defines]
  20   DEC_SPECIFICATION              = 0x00010005
  21   PACKAGE_NAME                   = PcAtChipsetPkg
  22   PACKAGE_GUID                   = B728689A-52D3-4b8c-AE89-2CE5514CC6DC
  23   PACKAGE_VERSION                = 0.1
  24
  25 [PcdsFixedAtBuild.common]
  26   ## Pcd8259LegacyModeMask defines the default mask value for platform. This value is determined
  27   #  1) If platform only support pure UEFI, value should be set to 0xFFFF or 0xFFFE;
  28   #     Because only clock interrupt is allowed in legacy mode in pure UEFI platform.
  29   #  2) If platform install CSM and use thunk module:
  30   #     a) If thunk call provided by CSM binary requires some legacy interrupt support, the corresponding bit
  31   #        should be opened as 0.
  32   #        For example, if keyboard interfaces provided CSM binary use legacy keyboard interrupt in 8259 bit 2, then
  33   #        the value should be set to 0xFFFC
  34   #     b) If all thunk call provied by CSM binary do not require legacy interrupt support, value should be set
  35   #        to 0xFFFF or 0xFFFE.
  36   #
  37   #  Because the value is used as intialization value, PCD's type should be FixedAtBuild.
  38   #
  39   #  The default value of legacy mode mask could be changed by EFI_LEGACY_8259_PROTOCOL->SetMask(). But it is rarely
  40   #  need change it except some special cases such as when initializing the CSM binary, it should be set to 0xFFFF to
  41   #  mask all legacy interrupt. Please restore the original legacy mask value if changing is made for these special case.
  42   #
  43   gPcAtChipsetPkgTokenSpaceGuid.Pcd8259LegacyModeMask|0x00000001|UINT16|0xFFFF
  44
  45   ## Pcd8259LegacyModeEdgeLevel defines the default edge level for legacy mode's interrrupt controller.
  46   gPcAtChipsetPkgTokenSpaceGuid.Pcd8259LegacyModeEdgeLevel|0x00000002|UINT16|0x0000
  47
  48 [Guids.common]
  49   gPcAtChipsetPkgTokenSpaceGuid = { 0x326ae723, 0xae32, 0x4589, { 0x98, 0xb8, 0xca, 0xc2, 0x3c, 0xdc, 0xc1, 0xb1 } }
  50