- ## Pcd8259LegacyModeMask defines the default mask value for platform. This value is determined<BR><BR>\r
- # 1) If platform only support pure UEFI, value should be set to 0xFFFF or 0xFFFE;\r
- # Because only clock interrupt is allowed in legacy mode in pure UEFI platform.<BR>\r
- # 2) If platform install CSM and use thunk module:<BR>\r
- # a) If thunk call provided by CSM binary requires some legacy interrupt support, the corresponding bit \r
- # should be opened as 0.<BR>\r
- # For example, if keyboard interfaces provided CSM binary use legacy keyboard interrupt in 8259 bit 1, then\r
- # the value should be set to 0xFFFC.<BR>\r
- # b) If all thunk call provied by CSM binary do not require legacy interrupt support, value should be set\r
- # to 0xFFFF or 0xFFFE.<BR>\r
- #\r
- # The default value of legacy mode mask could be changed by EFI_LEGACY_8259_PROTOCOL->SetMask(). But it is rarely\r
- # need change it except some special cases such as when initializing the CSM binary, it should be set to 0xFFFF to \r
- # mask all legacy interrupt. Please restore the original legacy mask value if changing is made for these special case.<BR>\r
- # @Prompt 8259 Legacy Mode mask.\r
- gPcAtChipsetPkgTokenSpaceGuid.Pcd8259LegacyModeMask|0xFFFF|UINT16|0x00000001\r
- \r
- ## Pcd8259LegacyModeEdgeLevel defines the default edge level for legacy mode's interrrupt controller.\r
- # For the corresponding bits, 0 = Edge triggered and 1 = Level triggered.\r
- # @Prompt 8259 Legacy Mode edge level.\r
- gPcAtChipsetPkgTokenSpaceGuid.Pcd8259LegacyModeEdgeLevel|0x0000|UINT16|0x00000002\r
-\r
- ## Indicates if we need enable IsaAcpiCom1 device.<BR><BR>\r
- # TRUE - Enables IsaAcpiCom1 device.<BR>\r
- # FALSE - Doesn't enable IsaAcpiCom1 device.<BR>\r
- # @Prompt Enable IsaAcpiCom1 device.\r
- gPcAtChipsetPkgTokenSpaceGuid.PcdIsaAcpiCom1Enable|TRUE|BOOLEAN|0x00000003\r
-\r
- ## Indicates if we need enable IsaAcpiCom2 device.<BR><BR>\r
- # TRUE - Enables IsaAcpiCom2 device.<BR>\r
- # FALSE - Doesn't enable IsaAcpiCom2 device.<BR>\r
- # @Prompt Enable IsaAcpiCom12 device.\r
- gPcAtChipsetPkgTokenSpaceGuid.PcdIsaAcpiCom2Enable|TRUE|BOOLEAN|0x00000004\r
-\r
- ## Indicates if we need enable IsaAcpiPs2Keyboard device.<BR><BR>\r
- # TRUE - Enables IsaAcpiPs2Keyboard device.<BR>\r
- # FALSE - Doesn't enable IsaAcpiPs2Keyboard device.<BR>\r
- # @Prompt Enable IsaAcpiPs2Keyboard device.\r
- gPcAtChipsetPkgTokenSpaceGuid.PcdIsaAcpiPs2KeyboardEnable|TRUE|BOOLEAN|0x00000005\r
-\r
- ## Indicates if we need enable IsaAcpiPs2Mouse device.<BR><BR>\r
- # TRUE - Enables IsaAcpiPs2Mouse device.<BR>\r
- # FALSE - Doesn't enable IsaAcpiPs2Mouse device.<BR>\r
- # @Prompt Enable IsaAcpiPs2Mouse device.\r
- gPcAtChipsetPkgTokenSpaceGuid.PcdIsaAcpiPs2MouseEnable|TRUE|BOOLEAN|0x00000006\r
-\r
- ## Indicates if we need enable IsaAcpiFloppyA device.<BR><BR>\r
- # TRUE - Enables IsaAcpiFloppyA device.<BR>\r
- # FALSE - Doesn't enable IsaAcpiFloppyA device.<BR>\r
- # @Prompt Enable IsaAcpiFloppyA device.\r
- gPcAtChipsetPkgTokenSpaceGuid.PcdIsaAcpiFloppyAEnable|TRUE|BOOLEAN|0x00000007\r
-\r
- ## Indicates if we need enable IsaAcpiFloppyB device.<BR><BR>\r
- # TRUE - Enables IsaAcpiFloppyB device.<BR>\r
- # FALSE - Doesn't enable IsaAcpiFloppyB device.<BR>\r
- # @Prompt Enable IsaAcpiFloppyB device.\r
- gPcAtChipsetPkgTokenSpaceGuid.PcdIsaAcpiFloppyBEnable|TRUE|BOOLEAN|0x00000008\r
-\r