HighPrecisionEventTimerTable.h

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#ifndef _HIGH_PRECISION_EVENT_TIMER_TABLE_H_
#define _HIGH_PRECISION_EVENT_TIMER_TABLE_H_
 
#include <IndustryStandard/Acpi.h>
 
//
// Ensure proper structure formats
//
#pragma pack(1)
 
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;
 
 
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER             Header;
  UINT32                                  EventTimerBlockId;
  EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  BaseAddressLower32Bit;
  UINT8                                   HpetNumber;
  UINT16                                  MainCounterMinimumClockTickInPeriodicMode;
  UINT8                                   PageProtectionAndOemAttribute;
} EFI_ACPI_HIGH_PRECISION_EVENT_TIMER_TABLE_HEADER;
 
#define EFI_ACPI_HIGH_PRECISION_EVENT_TIMER_TABLE_REVISION  0x01
 
//
// Page protection setting
// Values 3 through 15 are reserved for use by the specification
//
#define EFI_ACPI_NO_PAGE_PROTECTION   0
#define EFI_ACPI_4KB_PAGE_PROTECTION  1
#define EFI_ACPI_64KB_PAGE_PROTECTION 2
 
#pragma pack()
 
#endif