/** @file
  ACPI Watchdog Action Table (WADT) as defined at
  Microsoft Hardware Watchdog Timers Design Specification.

  Copyright (c) 2008 - 2018, Intel Corporation. All rights reserved.<BR>
  SPDX-License-Identifier: BSD-2-Clause-Patent
**/


#ifndef _WATCHDOG_ACTION_TABLE_H_
#define _WATCHDOG_ACTION_TABLE_H_

#include <IndustryStandard/Acpi.h>

//
// Ensure proper structure formats
//
#pragma pack(1)
///
/// Watchdog Action Table definition.
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER             Header;
  UINT32                                  WatchdogHeaderLength;
  UINT16                                  PCISegment;
  UINT8                                   PCIBusNumber;
  UINT8                                   PCIDeviceNumber;
  UINT8                                   PCIFunctionNumber;
  UINT8                                   Reserved_45[3];
  UINT32                                  TimerPeriod;
  UINT32                                  MaxCount;
  UINT32                                  MinCount;
  UINT8                                   WatchdogFlags;
  UINT8                                   Reserved_61[3];
  UINT32                                  NumberWatchdogInstructionEntries;
} EFI_ACPI_WATCHDOG_ACTION_1_0_TABLE;

///
/// Watchdog Instruction Entries
///
typedef struct {
  UINT8                                   WatchdogAction;
  UINT8                                   InstructionFlags;
  UINT8                                   Reserved_2[2];
  EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  RegisterRegion;
  UINT32                                  Value;
  UINT32                                  Mask;
} EFI_ACPI_WATCHDOG_ACTION_1_0_WATCHDOG_ACTION_INSTRUCTION_ENTRY;

#pragma pack()

///
/// WDAT Revision (defined in spec)
///
#define EFI_ACPI_WATCHDOG_ACTION_1_0_TABLE_REVISION       0x01

//
// WDAT 1.0 Flags
//
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ENABLED                0x1
#define EFI_ACPI_WDAT_1_0_WATCHDOG_STOPPED_IN_SLEEP_STATE 0x80

//
// WDAT 1.0 Watchdog Actions
//
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_RESET                          0x1
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_CURRENT_COUNTDOWN_PERIOD 0x4
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_COUNTDOWN_PERIOD         0x5
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_COUNTDOWN_PERIOD           0x6
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_RUNNING_STATE            0x8
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_RUNNING_STATE              0x9
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_STOPPED_STATE            0xA
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_STOPPED_STATE              0xB
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_REBOOT                   0x10
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_REBOOT                     0x11
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_SHUTDOWN                 0x12
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_SHUTDOWN                   0x13
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_QUERY_WATCHDOG_STATUS          0x20
#define EFI_ACPI_WDAT_1_0_WATCHDOG_ACTION_SET_WATCHDOG_STATUS            0x21

//
// WDAT 1.0 Watchdog Action Entry Instruction Flags
//
#define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_READ_VALUE        0x0
#define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_READ_COUNTDOWN    0x1
#define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_WRITE_VALUE       0x2
#define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_WRITE_COUNTDOWN   0x3
#define EFI_ACPI_WDAT_1_0_WATCHDOG_INSTRUCTION_PRESERVE_REGISTER 0x80

#endif