Add generic HPET Timer DXE Driver and support libraries

[mirror_edk2.git] / PcAtChipsetPkg / PcAtChipsetPkg.dec

diff --git a/PcAtChipsetPkg/PcAtChipsetPkg.dec b/PcAtChipsetPkg/PcAtChipsetPkg.dec
index c67c2f9f21810bf03f3818944bf5e119b87b7ccf..6c6e714f932a38da771a190487aa0749d0c730ca 100644 (file)
--- a/PcAtChipsetPkg/PcAtChipsetPkg.dec
+++ b/PcAtChipsetPkg/PcAtChipsetPkg.dec
@@ -22,7 +22,23 @@
   PACKAGE_GUID                   = B728689A-52D3-4b8c-AE89-2CE5514CC6DC\r
   PACKAGE_VERSION                = 0.1\r
 \r
-[PcdsFixedAtBuild]\r
+[Includes]\r
+  Include\r
+\r
+[LibraryClasses]\r
+  ##  @libraryclass  Provides functions to manage I/O APIC Redirection Table Entries.\r
+  #\r
+  IoApicLib|Include/Library/IoApicLib.h\r
+  \r
+[Guids]\r
+  gPcAtChipsetPkgTokenSpaceGuid = { 0x326ae723, 0xae32, 0x4589, { 0x98, 0xb8, 0xca, 0xc2, 0x3c, 0xdc, 0xc1, 0xb1 } }\r
+\r
+[PcdsFeatureFlag]\r
+  ## If TRUE, then the HPET Timer will be configured to use MSI interrupts if the HPET timer supports them.\r
+  #  If FALSE, then the HPET Timer will be configued to use I/O APIC interrupts.\r
+  gPcAtChipsetPkgTokenSpaceGuid.PcdHpetMsiEnable|TRUE|BOOLEAN|0x00001000\r
+  \r
+[PcdsFixedAtBuild, PcdsDynamic, PcdsDynamicEx, PcdsPatchableInModule]\r
   ## Pcd8259LegacyModeMask defines the default mask value for platform. This value is determined\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.\r
@@ -34,8 +50,6 @@
   #     b) If all thunk call provied by CSM binary do not require legacy interrupt support, value should be set\r
   #        to 0xFFFF or 0xFFFE.\r
   #\r
-  #  Because the value is used as intialization value, PCD's type should be FixedAtBuild.\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.\r
@@ -45,7 +59,6 @@
   ## Pcd8259LegacyModeEdgeLevel defines the default edge level for legacy mode's interrrupt controller.\r
   gPcAtChipsetPkgTokenSpaceGuid.Pcd8259LegacyModeEdgeLevel|0x0000|UINT16|0x00000002\r
 \r
-[PcdsFixedAtBuild, PcdsDynamic, PcdsPatchableInModule]\r
   ## This PCD specifies whether we need enable IsaAcpiCom1 device.\r
   gPcAtChipsetPkgTokenSpaceGuid.PcdIsaAcpiCom1Enable|TRUE|BOOLEAN|0x00000003\r
 \r
@@ -64,6 +77,16 @@
   ## This PCD specifies whether we need enable IsaAcpiFloppyB device.\r
   gPcAtChipsetPkgTokenSpaceGuid.PcdIsaAcpiFloppyBEnable|TRUE|BOOLEAN|0x00000008\r
 \r
-[Guids]\r
-  gPcAtChipsetPkgTokenSpaceGuid = { 0x326ae723, 0xae32, 0x4589, { 0x98, 0xb8, 0xca, 0xc2, 0x3c, 0xdc, 0xc1, 0xb1 } }\r
+  ## This PCD specifies the base address of the HPET timer.\r
+  gPcAtChipsetPkgTokenSpaceGuid.PcdHpetBaseAddress|0xFED00000|UINT32|0x00000009\r
+\r
+  ## This PCD specifies the Local APIC Interrupt Vector for the HPET Timer.\r
+  gPcAtChipsetPkgTokenSpaceGuid.PcdHpetLocalApicVector|0x40|UINT8|0x0000000A\r
 \r
+  ## This PCD specifies the defaut period of the HPET Timer in 100 ns units.\r
+  #  The default value of 100000 100 ns units is the same as 10 ms.\r
+  gPcAtChipsetPkgTokenSpaceGuid.PcdHpetDefaultTimerPeriod|100000|UINT64|0x0000000B\r
+  \r
+  ## This PCD specifies the base address of the HPET timer.\r
+  gPcAtChipsetPkgTokenSpaceGuid.PcdIoApicBaseAddress|0xFEC00000|UINT32|0x0000000C\r
+  
\ No newline at end of file