/****************************************************************************** * * Name: actbl.h - Basic ACPI Table Definitions * *****************************************************************************/ /* * Copyright (C) 2000 - 2013, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon * including a substantially similar Disclaimer requirement for further * binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. */ #ifndef __ACTBL_H__ #define __ACTBL_H__ /******************************************************************************* * * Fundamental ACPI tables * * This file contains definitions for the ACPI tables that are directly consumed * by ACPICA. All other tables are consumed by the OS-dependent ACPI-related * device drivers and other OS support code. * * The RSDP and FACS do not use the common ACPI table header. All other ACPI * tables use the header. * ******************************************************************************/ /* * Values for description table header signatures for tables defined in this * file. Useful because they make it more difficult to inadvertently type in * the wrong signature. */ #define ACPI_SIG_DSDT "DSDT" /* Differentiated System Description Table */ #define ACPI_SIG_FADT "FACP" /* Fixed ACPI Description Table */ #define ACPI_SIG_FACS "FACS" /* Firmware ACPI Control Structure */ #define ACPI_SIG_PSDT "PSDT" /* Persistent System Description Table */ #define ACPI_SIG_RSDP "RSD PTR " /* Root System Description Pointer */ #define ACPI_SIG_RSDT "RSDT" /* Root System Description Table */ #define ACPI_SIG_XSDT "XSDT" /* Extended System Description Table */ #define ACPI_SIG_SSDT "SSDT" /* Secondary System Description Table */ #define ACPI_RSDP_NAME "RSDP" /* Short name for RSDP, not signature */ /* * All tables and structures must be byte-packed to match the ACPI * specification, since the tables are provided by the system BIOS */ #pragma pack(1) /* * Note: C bitfields are not used for this reason: * * "Bitfields are great and easy to read, but unfortunately the C language * does not specify the layout of bitfields in memory, which means they are * essentially useless for dealing with packed data in on-disk formats or * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me, * this decision was a design error in C. Ritchie could have picked an order * and stuck with it." Norman Ramsey. * See http://stackoverflow.com/a/1053662/41661 */ /******************************************************************************* * * Master ACPI Table Header. This common header is used by all ACPI tables * except the RSDP and FACS. * ******************************************************************************/ typedef struct acpi_table_header { char Signature[ACPI_NAME_SIZE]; /* ASCII table signature */ UINT32 Length; /* Length of table in bytes, including this header */ UINT8 Revision; /* ACPI Specification minor version number */ UINT8 Checksum; /* To make sum of entire table == 0 */ char OemId[ACPI_OEM_ID_SIZE]; /* ASCII OEM identification */ char OemTableId[ACPI_OEM_TABLE_ID_SIZE]; /* ASCII OEM table identification */ UINT32 OemRevision; /* OEM revision number */ char AslCompilerId[ACPI_NAME_SIZE]; /* ASCII ASL compiler vendor ID */ UINT32 AslCompilerRevision; /* ASL compiler version */ } ACPI_TABLE_HEADER; /******************************************************************************* * * GAS - Generic Address Structure (ACPI 2.0+) * * Note: Since this structure is used in the ACPI tables, it is byte aligned. * If misaligned access is not supported by the hardware, accesses to the * 64-bit Address field must be performed with care. * ******************************************************************************/ typedef struct acpi_generic_address { UINT8 SpaceId; /* Address space where struct or register exists */ UINT8 BitWidth; /* Size in bits of given register */ UINT8 BitOffset; /* Bit offset within the register */ UINT8 AccessWidth; /* Minimum Access size (ACPI 3.0) */ UINT64 Address; /* 64-bit address of struct or register */ } ACPI_GENERIC_ADDRESS; /******************************************************************************* * * RSDP - Root System Description Pointer (Signature is "RSD PTR ") * Version 2 * ******************************************************************************/ typedef struct acpi_table_rsdp { char Signature[8]; /* ACPI signature, contains "RSD PTR " */ UINT8 Checksum; /* ACPI 1.0 checksum */ char OemId[ACPI_OEM_ID_SIZE]; /* OEM identification */ UINT8 Revision; /* Must be (0) for ACPI 1.0 or (2) for ACPI 2.0+ */ UINT32 RsdtPhysicalAddress; /* 32-bit physical address of the RSDT */ UINT32 Length; /* Table length in bytes, including header (ACPI 2.0+) */ UINT64 XsdtPhysicalAddress; /* 64-bit physical address of the XSDT (ACPI 2.0+) */ UINT8 ExtendedChecksum; /* Checksum of entire table (ACPI 2.0+) */ UINT8 Reserved[3]; /* Reserved, must be zero */ } ACPI_TABLE_RSDP; /* Standalone struct for the ACPI 1.0 RSDP */ typedef struct acpi_rsdp_common { char Signature[8]; UINT8 Checksum; char OemId[ACPI_OEM_ID_SIZE]; UINT8 Revision; UINT32 RsdtPhysicalAddress; } ACPI_RSDP_COMMON; /* Standalone struct for the extended part of the RSDP (ACPI 2.0+) */ typedef struct acpi_rsdp_extension { UINT32 Length; UINT64 XsdtPhysicalAddress; UINT8 ExtendedChecksum; UINT8 Reserved[3]; } ACPI_RSDP_EXTENSION; /******************************************************************************* * * RSDT/XSDT - Root System Description Tables * Version 1 (both) * ******************************************************************************/ typedef struct acpi_table_rsdt { ACPI_TABLE_HEADER Header; /* Common ACPI table header */ UINT32 TableOffsetEntry[1]; /* Array of pointers to ACPI tables */ } ACPI_TABLE_RSDT; typedef struct acpi_table_xsdt { ACPI_TABLE_HEADER Header; /* Common ACPI table header */ UINT64 TableOffsetEntry[1]; /* Array of pointers to ACPI tables */ } ACPI_TABLE_XSDT; /******************************************************************************* * * FACS - Firmware ACPI Control Structure (FACS) * ******************************************************************************/ typedef struct acpi_table_facs { char Signature[4]; /* ASCII table signature */ UINT32 Length; /* Length of structure, in bytes */ UINT32 HardwareSignature; /* Hardware configuration signature */ UINT32 FirmwareWakingVector; /* 32-bit physical address of the Firmware Waking Vector */ UINT32 GlobalLock; /* Global Lock for shared hardware resources */ UINT32 Flags; UINT64 XFirmwareWakingVector; /* 64-bit version of the Firmware Waking Vector (ACPI 2.0+) */ UINT8 Version; /* Version of this table (ACPI 2.0+) */ UINT8 Reserved[3]; /* Reserved, must be zero */ UINT32 OspmFlags; /* Flags to be set by OSPM (ACPI 4.0) */ UINT8 Reserved1[24]; /* Reserved, must be zero */ } ACPI_TABLE_FACS; /* Masks for GlobalLock flag field above */ #define ACPI_GLOCK_PENDING (1) /* 00: Pending global lock ownership */ #define ACPI_GLOCK_OWNED (1<<1) /* 01: Global lock is owned */ /* Masks for Flags field above */ #define ACPI_FACS_S4_BIOS_PRESENT (1) /* 00: S4BIOS support is present */ #define ACPI_FACS_64BIT_WAKE (1<<1) /* 01: 64-bit wake vector supported (ACPI 4.0) */ /* Masks for OspmFlags field above */ #define ACPI_FACS_64BIT_ENVIRONMENT (1) /* 00: 64-bit wake environment is required (ACPI 4.0) */ /******************************************************************************* * * FADT - Fixed ACPI Description Table (Signature "FACP") * Version 4 * ******************************************************************************/ /* Fields common to all versions of the FADT */ typedef struct acpi_table_fadt { ACPI_TABLE_HEADER Header; /* Common ACPI table header */ UINT32 Facs; /* 32-bit physical address of FACS */ UINT32 Dsdt; /* 32-bit physical address of DSDT */ UINT8 Model; /* System Interrupt Model (ACPI 1.0) - not used in ACPI 2.0+ */ UINT8 PreferredProfile; /* Conveys preferred power management profile to OSPM. */ UINT16 SciInterrupt; /* System vector of SCI interrupt */ UINT32 SmiCommand; /* 32-bit Port address of SMI command port */ UINT8 AcpiEnable; /* Value to write to SMI_CMD to enable ACPI */ UINT8 AcpiDisable; /* Value to write to SMI_CMD to disable ACPI */ UINT8 S4BiosRequest; /* Value to write to SMI_CMD to enter S4BIOS state */ UINT8 PstateControl; /* Processor performance state control*/ UINT32 Pm1aEventBlock; /* 32-bit port address of Power Mgt 1a Event Reg Blk */ UINT32 Pm1bEventBlock; /* 32-bit port address of Power Mgt 1b Event Reg Blk */ UINT32 Pm1aControlBlock; /* 32-bit port address of Power Mgt 1a Control Reg Blk */ UINT32 Pm1bControlBlock; /* 32-bit port address of Power Mgt 1b Control Reg Blk */ UINT32 Pm2ControlBlock; /* 32-bit port address of Power Mgt 2 Control Reg Blk */ UINT32 PmTimerBlock; /* 32-bit port address of Power Mgt Timer Ctrl Reg Blk */ UINT32 Gpe0Block; /* 32-bit port address of General Purpose Event 0 Reg Blk */ UINT32 Gpe1Block; /* 32-bit port address of General Purpose Event 1 Reg Blk */ UINT8 Pm1EventLength; /* Byte Length of ports at Pm1xEventBlock */ UINT8 Pm1ControlLength; /* Byte Length of ports at Pm1xControlBlock */ UINT8 Pm2ControlLength; /* Byte Length of ports at Pm2ControlBlock */ UINT8 PmTimerLength; /* Byte Length of ports at PmTimerBlock */ UINT8 Gpe0BlockLength; /* Byte Length of ports at Gpe0Block */ UINT8 Gpe1BlockLength; /* Byte Length of ports at Gpe1Block */ UINT8 Gpe1Base; /* Offset in GPE number space where GPE1 events start */ UINT8 CstControl; /* Support for the _CST object and C-States change notification */ UINT16 C2Latency; /* Worst case HW latency to enter/exit C2 state */ UINT16 C3Latency; /* Worst case HW latency to enter/exit C3 state */ UINT16 FlushSize; /* Processor memory cache line width, in bytes */ UINT16 FlushStride; /* Number of flush strides that need to be read */ UINT8 DutyOffset; /* Processor duty cycle index in processor P_CNT reg */ UINT8 DutyWidth; /* Processor duty cycle value bit width in P_CNT register */ UINT8 DayAlarm; /* Index to day-of-month alarm in RTC CMOS RAM */ UINT8 MonthAlarm; /* Index to month-of-year alarm in RTC CMOS RAM */ UINT8 Century; /* Index to century in RTC CMOS RAM */ UINT16 BootFlags; /* IA-PC Boot Architecture Flags (see below for individual flags) */ UINT8 Reserved; /* Reserved, must be zero */ UINT32 Flags; /* Miscellaneous flag bits (see below for individual flags) */ ACPI_GENERIC_ADDRESS ResetRegister; /* 64-bit address of the Reset register */ UINT8 ResetValue; /* Value to write to the ResetRegister port to reset the system */ UINT8 Reserved4[3]; /* Reserved, must be zero */ UINT64 XFacs; /* 64-bit physical address of FACS */ UINT64 XDsdt; /* 64-bit physical address of DSDT */ ACPI_GENERIC_ADDRESS XPm1aEventBlock; /* 64-bit Extended Power Mgt 1a Event Reg Blk address */ ACPI_GENERIC_ADDRESS XPm1bEventBlock; /* 64-bit Extended Power Mgt 1b Event Reg Blk address */ ACPI_GENERIC_ADDRESS XPm1aControlBlock; /* 64-bit Extended Power Mgt 1a Control Reg Blk address */ ACPI_GENERIC_ADDRESS XPm1bControlBlock; /* 64-bit Extended Power Mgt 1b Control Reg Blk address */ ACPI_GENERIC_ADDRESS XPm2ControlBlock; /* 64-bit Extended Power Mgt 2 Control Reg Blk address */ ACPI_GENERIC_ADDRESS XPmTimerBlock; /* 64-bit Extended Power Mgt Timer Ctrl Reg Blk address */ ACPI_GENERIC_ADDRESS XGpe0Block; /* 64-bit Extended General Purpose Event 0 Reg Blk address */ ACPI_GENERIC_ADDRESS XGpe1Block; /* 64-bit Extended General Purpose Event 1 Reg Blk address */ ACPI_GENERIC_ADDRESS SleepControl; /* 64-bit Sleep Control register (ACPI 5.0) */ ACPI_GENERIC_ADDRESS SleepStatus; /* 64-bit Sleep Status register (ACPI 5.0) */ } ACPI_TABLE_FADT; /* Masks for FADT Boot Architecture Flags (BootFlags) [Vx]=Introduced in this FADT revision */ #define ACPI_FADT_LEGACY_DEVICES (1) /* 00: [V2] System has LPC or ISA bus devices */ #define ACPI_FADT_8042 (1<<1) /* 01: [V3] System has an 8042 controller on port 60/64 */ #define ACPI_FADT_NO_VGA (1<<2) /* 02: [V4] It is not safe to probe for VGA hardware */ #define ACPI_FADT_NO_MSI (1<<3) /* 03: [V4] Message Signaled Interrupts (MSI) must not be enabled */ #define ACPI_FADT_NO_ASPM (1<<4) /* 04: [V4] PCIe ASPM control must not be enabled */ #define ACPI_FADT_NO_CMOS_RTC (1<<5) /* 05: [V5] No CMOS real-time clock present */ /* Masks for FADT flags */ #define ACPI_FADT_WBINVD (1) /* 00: [V1] The WBINVD instruction works properly */ #define ACPI_FADT_WBINVD_FLUSH (1<<1) /* 01: [V1] WBINVD flushes but does not invalidate caches */ #define ACPI_FADT_C1_SUPPORTED (1<<2) /* 02: [V1] All processors support C1 state */ #define ACPI_FADT_C2_MP_SUPPORTED (1<<3) /* 03: [V1] C2 state works on MP system */ #define ACPI_FADT_POWER_BUTTON (1<<4) /* 04: [V1] Power button is handled as a control method device */ #define ACPI_FADT_SLEEP_BUTTON (1<<5) /* 05: [V1] Sleep button is handled as a control method device */ #define ACPI_FADT_FIXED_RTC (1<<6) /* 06: [V1] RTC wakeup status is not in fixed register space */ #define ACPI_FADT_S4_RTC_WAKE (1<<7) /* 07: [V1] RTC alarm can wake system from S4 */ #define ACPI_FADT_32BIT_TIMER (1<<8) /* 08: [V1] ACPI timer width is 32-bit (0=24-bit) */ #define ACPI_FADT_DOCKING_SUPPORTED (1<<9) /* 09: [V1] Docking supported */ #define ACPI_FADT_RESET_REGISTER (1<<10) /* 10: [V2] System reset via the FADT RESET_REG supported */ #define ACPI_FADT_SEALED_CASE (1<<11) /* 11: [V3] No internal expansion capabilities and case is sealed */ #define ACPI_FADT_HEADLESS (1<<12) /* 12: [V3] No local video capabilities or local input devices */ #define ACPI_FADT_SLEEP_TYPE (1<<13) /* 13: [V3] Must execute native instruction after writing SLP_TYPx register */ #define ACPI_FADT_PCI_EXPRESS_WAKE (1<<14) /* 14: [V4] System supports PCIEXP_WAKE (STS/EN) bits (ACPI 3.0) */ #define ACPI_FADT_PLATFORM_CLOCK (1<<15) /* 15: [V4] OSPM should use platform-provided timer (ACPI 3.0) */ #define ACPI_FADT_S4_RTC_VALID (1<<16) /* 16: [V4] Contents of RTC_STS valid after S4 wake (ACPI 3.0) */ #define ACPI_FADT_REMOTE_POWER_ON (1<<17) /* 17: [V4] System is compatible with remote power on (ACPI 3.0) */ #define ACPI_FADT_APIC_CLUSTER (1<<18) /* 18: [V4] All local APICs must use cluster model (ACPI 3.0) */ #define ACPI_FADT_APIC_PHYSICAL (1<<19) /* 19: [V4] All local xAPICs must use physical dest mode (ACPI 3.0) */ #define ACPI_FADT_HW_REDUCED (1<<20) /* 20: [V5] ACPI hardware is not implemented (ACPI 5.0) */ #define ACPI_FADT_LOW_POWER_S0 (1<<21) /* 21: [V5] S0 power savings are equal or better than S3 (ACPI 5.0) */ /* Values for PreferredProfile (Preferred Power Management Profiles) */ enum AcpiPreferredPmProfiles { PM_UNSPECIFIED = 0, PM_DESKTOP = 1, PM_MOBILE = 2, PM_WORKSTATION = 3, PM_ENTERPRISE_SERVER = 4, PM_SOHO_SERVER = 5, PM_APPLIANCE_PC = 6, PM_PERFORMANCE_SERVER = 7, PM_TABLET = 8 }; /* Values for SleepStatus and SleepControl registers (V5 FADT) */ #define ACPI_X_WAKE_STATUS 0x80 #define ACPI_X_SLEEP_TYPE_MASK 0x1C #define ACPI_X_SLEEP_TYPE_POSITION 0x02 #define ACPI_X_SLEEP_ENABLE 0x20 /* Reset to default packing */ #pragma pack() /* * Internal table-related structures */ typedef union acpi_name_union { UINT32 Integer; char Ascii[4]; } ACPI_NAME_UNION; /* Internal ACPI Table Descriptor. One per ACPI table. */ typedef struct acpi_table_desc { ACPI_PHYSICAL_ADDRESS Address; ACPI_TABLE_HEADER *Pointer; UINT32 Length; /* Length fixed at 32 bits (fixed in table header) */ ACPI_NAME_UNION Signature; ACPI_OWNER_ID OwnerId; UINT8 Flags; } ACPI_TABLE_DESC; /* Masks for Flags field above */ #define ACPI_TABLE_ORIGIN_UNKNOWN (0) #define ACPI_TABLE_ORIGIN_MAPPED (1) #define ACPI_TABLE_ORIGIN_ALLOCATED (2) #define ACPI_TABLE_ORIGIN_OVERRIDE (4) #define ACPI_TABLE_ORIGIN_MASK (7) #define ACPI_TABLE_IS_LOADED (8) /* * Get the remaining ACPI tables */ #include #include #include /* Macros used to generate offsets to specific table fields */ #define ACPI_FADT_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_TABLE_FADT, f) /* * Sizes of the various flavors of FADT. We need to look closely * at the FADT length because the version number essentially tells * us nothing because of many BIOS bugs where the version does not * match the expected length. In other words, the length of the * FADT is the bottom line as to what the version really is. * * For reference, the values below are as follows: * FADT V1 size: 0x074 * FADT V2 size: 0x084 * FADT V3 size: 0x0F4 * FADT V4 size: 0x0F4 * FADT V5 size: 0x10C */ #define ACPI_FADT_V1_SIZE (UINT32) (ACPI_FADT_OFFSET (Flags) + 4) #define ACPI_FADT_V2_SIZE (UINT32) (ACPI_FADT_OFFSET (Reserved4[0]) + 3) #define ACPI_FADT_V3_SIZE (UINT32) (ACPI_FADT_OFFSET (SleepControl)) #define ACPI_FADT_V5_SIZE (UINT32) (sizeof (ACPI_TABLE_FADT)) #endif /* __ACTBL_H__ */