/** @file
  ACPI 2.0 definitions from the ACPI Specification, revision 2.0

  Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
  SPDX-License-Identifier: BSD-2-Clause-Patent
**/

#ifndef _ACPI_2_0_H_
#define _ACPI_2_0_H_

FILE_LICENCE ( BSD2_PATENT );

#include <ipxe/efi/IndustryStandard/Acpi10.h>

//
// Define for Descriptor
//
#define ACPI_LARGE_GENERIC_REGISTER_DESCRIPTOR_NAME  0x02

#define ACPI_GENERIC_REGISTER_DESCRIPTOR  0x82

//
// Ensure proper structure formats
//
#pragma pack(1)

///
/// Generic Register Descriptor
///
typedef PACKED struct {
  ACPI_LARGE_RESOURCE_HEADER    Header;
  UINT8                         AddressSpaceId;
  UINT8                         RegisterBitWidth;
  UINT8                         RegisterBitOffset;
  UINT8                         AddressSize;
  UINT64                        RegisterAddress;
} EFI_ACPI_GENERIC_REGISTER_DESCRIPTOR;

#pragma pack()

//
// Ensure proper structure formats
//
#pragma pack(1)

///
/// ACPI 2.0 Generic Address Space definition
///
typedef struct {
  UINT8     AddressSpaceId;
  UINT8     RegisterBitWidth;
  UINT8     RegisterBitOffset;
  UINT8     Reserved;
  UINT64    Address;
} EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE;

//
// Generic Address Space Address IDs
//
#define EFI_ACPI_2_0_SYSTEM_MEMORY              0
#define EFI_ACPI_2_0_SYSTEM_IO                  1
#define EFI_ACPI_2_0_PCI_CONFIGURATION_SPACE    2
#define EFI_ACPI_2_0_EMBEDDED_CONTROLLER        3
#define EFI_ACPI_2_0_SMBUS                      4
#define EFI_ACPI_2_0_FUNCTIONAL_FIXED_HARDWARE  0x7F

//
// ACPI 2.0 table structures
//

///
/// Root System Description Pointer Structure
///
typedef struct {
  UINT64    Signature;
  UINT8     Checksum;
  UINT8     OemId[6];
  UINT8     Revision;
  UINT32    RsdtAddress;
  UINT32    Length;
  UINT64    XsdtAddress;
  UINT8     ExtendedChecksum;
  UINT8     Reserved[3];
} EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER;

///
/// RSD_PTR Revision (as defined in ACPI 2.0 spec.)
///
#define EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER_REVISION  0x02

///
/// Common table header, this prefaces all ACPI tables, including FACS, but
/// excluding the RSD PTR structure
///
typedef struct {
  UINT32    Signature;
  UINT32    Length;
} EFI_ACPI_2_0_COMMON_HEADER;

//
// Root System Description Table
// No definition needed as it is a common description table header, the same with
// EFI_ACPI_DESCRIPTION_HEADER, followed by a variable number of UINT32 table pointers.
//

///
/// RSDT Revision (as defined in ACPI 2.0 spec.)
///
#define EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_TABLE_REVISION  0x01

//
// Extended System Description Table
// No definition needed as it is a common description table header, the same with
// EFI_ACPI_DESCRIPTION_HEADER, followed by a variable number of UINT64 table pointers.
//

///
/// XSDT Revision (as defined in ACPI 2.0 spec.)
///
#define EFI_ACPI_2_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_REVISION  0x01

///
/// Fixed ACPI Description Table Structure (FADT)
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER               Header;
  UINT32                                    FirmwareCtrl;
  UINT32                                    Dsdt;
  UINT8                                     Reserved0;
  UINT8                                     PreferredPmProfile;
  UINT16                                    SciInt;
  UINT32                                    SmiCmd;
  UINT8                                     AcpiEnable;
  UINT8                                     AcpiDisable;
  UINT8                                     S4BiosReq;
  UINT8                                     PstateCnt;
  UINT32                                    Pm1aEvtBlk;
  UINT32                                    Pm1bEvtBlk;
  UINT32                                    Pm1aCntBlk;
  UINT32                                    Pm1bCntBlk;
  UINT32                                    Pm2CntBlk;
  UINT32                                    PmTmrBlk;
  UINT32                                    Gpe0Blk;
  UINT32                                    Gpe1Blk;
  UINT8                                     Pm1EvtLen;
  UINT8                                     Pm1CntLen;
  UINT8                                     Pm2CntLen;
  UINT8                                     PmTmrLen;
  UINT8                                     Gpe0BlkLen;
  UINT8                                     Gpe1BlkLen;
  UINT8                                     Gpe1Base;
  UINT8                                     CstCnt;
  UINT16                                    PLvl2Lat;
  UINT16                                    PLvl3Lat;
  UINT16                                    FlushSize;
  UINT16                                    FlushStride;
  UINT8                                     DutyOffset;
  UINT8                                     DutyWidth;
  UINT8                                     DayAlrm;
  UINT8                                     MonAlrm;
  UINT8                                     Century;
  UINT16                                    IaPcBootArch;
  UINT8                                     Reserved1;
  UINT32                                    Flags;
  EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE    ResetReg;
  UINT8                                     ResetValue;
  UINT8                                     Reserved2[3];
  UINT64                                    XFirmwareCtrl;
  UINT64                                    XDsdt;
  EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE    XPm1aEvtBlk;
  EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE    XPm1bEvtBlk;
  EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE    XPm1aCntBlk;
  EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE    XPm1bCntBlk;
  EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE    XPm2CntBlk;
  EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE    XPmTmrBlk;
  EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE    XGpe0Blk;
  EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE    XGpe1Blk;
} EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE;

///
/// FADT Version (as defined in ACPI 2.0 spec.)
///
#define EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE_REVISION  0x03

//
// Fixed ACPI Description Table Preferred Power Management Profile
//
#define EFI_ACPI_2_0_PM_PROFILE_UNSPECIFIED        0
#define EFI_ACPI_2_0_PM_PROFILE_DESKTOP            1
#define EFI_ACPI_2_0_PM_PROFILE_MOBILE             2
#define EFI_ACPI_2_0_PM_PROFILE_WORKSTATION        3
#define EFI_ACPI_2_0_PM_PROFILE_ENTERPRISE_SERVER  4
#define EFI_ACPI_2_0_PM_PROFILE_SOHO_SERVER        5
#define EFI_ACPI_2_0_PM_PROFILE_APPLIANCE_PC       6

//
// Fixed ACPI Description Table Boot Architecture Flags
// All other bits are reserved and must be set to 0.
//
#define EFI_ACPI_2_0_LEGACY_DEVICES  BIT0
#define EFI_ACPI_2_0_8042            BIT1

//
// Fixed ACPI Description Table Fixed Feature Flags
// All other bits are reserved and must be set to 0.
//
#define EFI_ACPI_2_0_WBINVD         BIT0
#define EFI_ACPI_2_0_WBINVD_FLUSH   BIT1
#define EFI_ACPI_2_0_PROC_C1        BIT2
#define EFI_ACPI_2_0_P_LVL2_UP      BIT3
#define EFI_ACPI_2_0_PWR_BUTTON     BIT4
#define EFI_ACPI_2_0_SLP_BUTTON     BIT5
#define EFI_ACPI_2_0_FIX_RTC        BIT6
#define EFI_ACPI_2_0_RTC_S4         BIT7
#define EFI_ACPI_2_0_TMR_VAL_EXT    BIT8
#define EFI_ACPI_2_0_DCK_CAP        BIT9
#define EFI_ACPI_2_0_RESET_REG_SUP  BIT10
#define EFI_ACPI_2_0_SEALED_CASE    BIT11
#define EFI_ACPI_2_0_HEADLESS       BIT12
#define EFI_ACPI_2_0_CPU_SW_SLP     BIT13

///
/// Firmware ACPI Control Structure
///
typedef struct {
  UINT32    Signature;
  UINT32    Length;
  UINT32    HardwareSignature;
  UINT32    FirmwareWakingVector;
  UINT32    GlobalLock;
  UINT32    Flags;
  UINT64    XFirmwareWakingVector;
  UINT8     Version;
  UINT8     Reserved[31];
} EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE;

///
/// FACS Version (as defined in ACPI 2.0 spec.)
///
#define EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_VERSION  0x01

///
/// Firmware Control Structure Feature Flags
/// All other bits are reserved and must be set to 0.
///
#define EFI_ACPI_2_0_S4BIOS_F  BIT0

///
/// Multiple APIC Description Table header definition.  The rest of the table
/// must be defined in a platform specific manner.
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT32                         LocalApicAddress;
  UINT32                         Flags;
} EFI_ACPI_2_0_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER;

///
/// MADT Revision (as defined in ACPI 2.0 spec.)
///
#define EFI_ACPI_2_0_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION  0x01

///
/// Multiple APIC Flags
/// All other bits are reserved and must be set to 0.
///
#define EFI_ACPI_2_0_PCAT_COMPAT  BIT0

//
// Multiple APIC Description Table APIC structure types
// All other values between 0x09 an 0xFF are reserved and
// will be ignored by OSPM.
//
#define EFI_ACPI_2_0_PROCESSOR_LOCAL_APIC           0x00
#define EFI_ACPI_2_0_IO_APIC                        0x01
#define EFI_ACPI_2_0_INTERRUPT_SOURCE_OVERRIDE      0x02
#define EFI_ACPI_2_0_NON_MASKABLE_INTERRUPT_SOURCE  0x03
#define EFI_ACPI_2_0_LOCAL_APIC_NMI                 0x04
#define EFI_ACPI_2_0_LOCAL_APIC_ADDRESS_OVERRIDE    0x05
#define EFI_ACPI_2_0_IO_SAPIC                       0x06
#define EFI_ACPI_2_0_PROCESSOR_LOCAL_SAPIC          0x07
#define EFI_ACPI_2_0_PLATFORM_INTERRUPT_SOURCES     0x08

//
// APIC Structure Definitions
//

///
/// Processor Local APIC Structure Definition
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     AcpiProcessorId;
  UINT8     ApicId;
  UINT32    Flags;
} EFI_ACPI_2_0_PROCESSOR_LOCAL_APIC_STRUCTURE;

///
/// Local APIC Flags.  All other bits are reserved and must be 0.
///
#define EFI_ACPI_2_0_LOCAL_APIC_ENABLED  BIT0

///
/// IO APIC Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     IoApicId;
  UINT8     Reserved;
  UINT32    IoApicAddress;
  UINT32    GlobalSystemInterruptBase;
} EFI_ACPI_2_0_IO_APIC_STRUCTURE;

///
/// Interrupt Source Override Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     Bus;
  UINT8     Source;
  UINT32    GlobalSystemInterrupt;
  UINT16    Flags;
} EFI_ACPI_2_0_INTERRUPT_SOURCE_OVERRIDE_STRUCTURE;

///
/// Non-Maskable Interrupt Source Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT16    Flags;
  UINT32    GlobalSystemInterrupt;
} EFI_ACPI_2_0_NON_MASKABLE_INTERRUPT_SOURCE_STRUCTURE;

///
/// Local APIC NMI Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     AcpiProcessorId;
  UINT16    Flags;
  UINT8     LocalApicLint;
} EFI_ACPI_2_0_LOCAL_APIC_NMI_STRUCTURE;

///
/// Local APIC Address Override Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT16    Reserved;
  UINT64    LocalApicAddress;
} EFI_ACPI_2_0_LOCAL_APIC_ADDRESS_OVERRIDE_STRUCTURE;

///
/// IO SAPIC Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     IoApicId;
  UINT8     Reserved;
  UINT32    GlobalSystemInterruptBase;
  UINT64    IoSapicAddress;
} EFI_ACPI_2_0_IO_SAPIC_STRUCTURE;

///
/// Local SAPIC Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT8     AcpiProcessorId;
  UINT8     LocalSapicId;
  UINT8     LocalSapicEid;
  UINT8     Reserved[3];
  UINT32    Flags;
} EFI_ACPI_2_0_PROCESSOR_LOCAL_SAPIC_STRUCTURE;

///
/// Platform Interrupt Sources Structure
///
typedef struct {
  UINT8     Type;
  UINT8     Length;
  UINT16    Flags;
  UINT8     InterruptType;
  UINT8     ProcessorId;
  UINT8     ProcessorEid;
  UINT8     IoSapicVector;
  UINT32    GlobalSystemInterrupt;
  UINT32    Reserved;
} EFI_ACPI_2_0_PLATFORM_INTERRUPT_SOURCES_STRUCTURE;

///
/// Smart Battery Description Table (SBST)
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER    Header;
  UINT32                         WarningEnergyLevel;
  UINT32                         LowEnergyLevel;
  UINT32                         CriticalEnergyLevel;
} EFI_ACPI_2_0_SMART_BATTERY_DESCRIPTION_TABLE;

///
/// SBST Version (as defined in ACPI 2.0 spec.)
///
#define EFI_ACPI_2_0_SMART_BATTERY_DESCRIPTION_TABLE_REVISION  0x01

///
/// Embedded Controller Boot Resources Table (ECDT)
/// The table is followed by a null terminated ASCII string that contains
/// a fully qualified reference to the name space object.
///
typedef struct {
  EFI_ACPI_DESCRIPTION_HEADER               Header;
  EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE    EcControl;
  EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE    EcData;
  UINT32                                    Uid;
  UINT8                                     GpeBit;
} EFI_ACPI_2_0_EMBEDDED_CONTROLLER_BOOT_RESOURCES_TABLE;

///
/// ECDT Version (as defined in ACPI 2.0 spec.)
///
#define EFI_ACPI_2_0_EMBEDDED_CONTROLLER_BOOT_RESOURCES_TABLE_REVISION  0x01

//
// Known table signatures
//

///
/// "RSD PTR " Root System Description Pointer
///
#define EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE  SIGNATURE_64('R', 'S', 'D', ' ', 'P', 'T', 'R', ' ')

///
/// "SPIC" Multiple SAPIC Description Table
///
/// BUGBUG: Don't know where this came from except SR870BN4 uses it.
/// #define EFI_ACPI_2_0_MULTIPLE_SAPIC_DESCRIPTION_TABLE_SIGNATURE 0x43495053
///
#define EFI_ACPI_2_0_MULTIPLE_SAPIC_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('A', 'P', 'I', 'C')

///
/// "BOOT" MS Simple Boot Spec
///
#define EFI_ACPI_2_0_SIMPLE_BOOT_FLAG_TABLE_SIGNATURE  SIGNATURE_32('B', 'O', 'O', 'T')

///
/// "DBGP" MS Bebug Port Spec
///
#define EFI_ACPI_2_0_DEBUG_PORT_TABLE_SIGNATURE  SIGNATURE_32('D', 'B', 'G', 'P')

///
/// "DSDT" Differentiated System Description Table
///
#define EFI_ACPI_2_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('D', 'S', 'D', 'T')

///
/// "ECDT" Embedded Controller Boot Resources Table
///
#define EFI_ACPI_2_0_EMBEDDED_CONTROLLER_BOOT_RESOURCES_TABLE_SIGNATURE  SIGNATURE_32('E', 'C', 'D', 'T')

///
/// "ETDT" Event Timer Description Table
///
#define EFI_ACPI_2_0_EVENT_TIMER_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('E', 'T', 'D', 'T')

///
/// "FACS" Firmware ACPI Control Structure
///
#define EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE  SIGNATURE_32('F', 'A', 'C', 'S')

///
/// "FACP" Fixed ACPI Description Table
///
#define EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('F', 'A', 'C', 'P')

///
/// "APIC" Multiple APIC Description Table
///
#define EFI_ACPI_2_0_MULTIPLE_APIC_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('A', 'P', 'I', 'C')

///
/// "PSDT" Persistent System Description Table
///
#define EFI_ACPI_2_0_PERSISTENT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('P', 'S', 'D', 'T')

///
/// "RSDT" Root System Description Table
///
#define EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('R', 'S', 'D', 'T')

///
/// "SBST" Smart Battery Specification Table
///
#define EFI_ACPI_2_0_SMART_BATTERY_SPECIFICATION_TABLE_SIGNATURE  SIGNATURE_32('S', 'B', 'S', 'T')

///
/// "SLIT" System Locality Information Table
///
#define EFI_ACPI_2_0_SYSTEM_LOCALITY_INFORMATION_TABLE_SIGNATURE  SIGNATURE_32('S', 'L', 'I', 'T')

///
/// "SPCR" Serial Port Console Redirection Table
///
#define EFI_ACPI_2_0_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_SIGNATURE  SIGNATURE_32('S', 'P', 'C', 'R')

///
/// "SRAT" Static Resource Affinity Table
///
#define EFI_ACPI_2_0_STATIC_RESOURCE_AFFINITY_TABLE_SIGNATURE  SIGNATURE_32('S', 'R', 'A', 'T')

///
/// "SSDT" Secondary System Description Table
///
#define EFI_ACPI_2_0_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('S', 'S', 'D', 'T')

///
/// "SPMI" Server Platform Management Interface Table
///
#define EFI_ACPI_2_0_SERVER_PLATFORM_MANAGEMENT_INTERFACE_SIGNATURE  SIGNATURE_32('S', 'P', 'M', 'I')

///
/// "XSDT" Extended System Description Table
///
#define EFI_ACPI_2_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE  SIGNATURE_32('X', 'S', 'D', 'T')

///
/// "MCFG" PCI Express Memory Mapped Configuration Space Base Address Description Table
///
#define EFI_ACPI_2_0_MEMORY_MAPPED_CONFIGURATION_BASE_ADDRESS_TABLE_SIGNATURE  SIGNATURE_32('M', 'C', 'F', 'G')

#pragma pack()

#endif
