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MdePkg/Hpet: Add Event Timer Block ID definition. 

This patch adds the HPET Event Timer Block ID definition that can be
found in the IA-PC HPET Specification, section 3.2.4.

V2:
  - Do not change the copyright date as requested.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
This commit is contained in:
Marvin.Haeuser@outlook.com 2018-05-17 20:41:38 +08:00 committed by Liming Gao
parent 20274d2389
commit c9734786da
1 changed files with 16 additions and 0 deletions
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16
MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h
View File

@ -22,6 +22,22 @@
//
#pragma pack(1)
///
/// HPET Event Timer Block ID described in IA-PC HPET Specification, 3.2.4.
///
typedef union {
struct {
UINT32 Revision : 8;
UINT32 NumberOfTimers : 5;
UINT32 CounterSize : 1;
UINT32 Reserved : 1;
UINT32 LegacyRoute : 1;
UINT32 VendorId : 16;
} Bits;
UINT32 Uint32;
} EFI_ACPI_HIGH_PRECISION_EVENT_TIMER_BLOCK_ID;
///
/// High Precision Event Timer Table header definition.
///