/******************************************************************************
*
* Name: actbl.h - Basic ACPI Table Definitions
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2006, R. Byron Moore
* 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__
/*
* Values for description table header signatures. 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"
/*
* 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)
/*
* These are the ACPI tables that are directly consumed by the subsystem.
*
* The RSDP and FACS do not use the common ACPI table header. All other ACPI
* tables use the header.
*
* Note about bitfields: The u8 type is used for bitfields in ACPI tables.
* This is the only type that is even remotely portable. Anything else is not
* portable, so do not use any other bitfield types.
*/
/*******************************************************************************
*
* ACPI Table Header. This common header is used by all tables except the
* RSDP and FACS. The define is used for direct inclusion of header into
* other ACPI tables
*
******************************************************************************/
struct acpi_table_header {
char signature[ACPI_NAME_SIZE]; /* ASCII table signature */
u32 length; /* Length of table in bytes, including this header */
u8 revision; /* ACPI Specification minor version # */
u8 checksum; /* To make sum of entire table == 0 */
char oem_id[ACPI_OEM_ID_SIZE]; /* ASCII OEM identification */
char oem_table_id[ACPI_OEM_TABLE_ID_SIZE]; /* ASCII OEM table identification */
u32 oem_revision; /* OEM revision number */
char asl_compiler_id[ACPI_NAME_SIZE]; /* ASCII ASL compiler vendor ID */
u32 asl_compiler_revision; /* ASL compiler version */
};
/*
* GAS - Generic Address Structure (ACPI 2.0+)
*
* Note: Since this structure is used in the ACPI tables, it is byte aligned.
* If misalignment is not supported, access to the Address field must be
* performed with care.
*/
struct acpi_generic_address {
u8 space_id; /* Address space where struct or register exists */
u8 bit_width; /* Size in bits of given register */
u8 bit_offset; /* Bit offset within the register */
u8 access_width; /* Minimum Access size (ACPI 3.0) */
u64 address; /* 64-bit address of struct or register */
};
/*******************************************************************************
*
* RSDP - Root System Description Pointer (Signature is "RSD PTR ")
*
******************************************************************************/
struct acpi_table_rsdp {
char signature[8]; /* ACPI signature, contains "RSD PTR " */
u8 checksum; /* ACPI 1.0 checksum */
char oem_id[ACPI_OEM_ID_SIZE]; /* OEM identification */
u8 revision; /* Must be (0) for ACPI 1.0 or (2) for ACPI 2.0+ */
u32 rsdt_physical_address; /* 32-bit physical address of the RSDT */
u32 length; /* Table length in bytes, including header (ACPI 2.0+) */
u64 xsdt_physical_address; /* 64-bit physical address of the XSDT (ACPI 2.0+) */
u8 extended_checksum; /* Checksum of entire table (ACPI 2.0+) */
u8 reserved[3]; /* Reserved, must be zero */
};
#define ACPI_RSDP_REV0_SIZE 20 /* Size of original ACPI 1.0 RSDP */
/*******************************************************************************
*
* RSDT/XSDT - Root System Description Tables
*
******************************************************************************/
struct acpi_table_rsdt {
struct acpi_table_header header; /* Common ACPI table header */
u32 table_offset_entry[1]; /* Array of pointers to ACPI tables */
};
struct acpi_table_xsdt {
struct acpi_table_header header; /* Common ACPI table header */
u64 table_offset_entry[1]; /* Array of pointers to ACPI tables */
};
/*******************************************************************************
*
* FACS - Firmware ACPI Control Structure (FACS)
*
******************************************************************************/
struct acpi_table_facs {
char signature[4]; /* ASCII table signature */
u32 length; /* Length of structure, in bytes */
u32 hardware_signature; /* Hardware configuration signature */
u32 firmware_waking_vector; /* 32-bit physical address of the Firmware Waking Vector */
u32 global_lock; /* Global Lock for shared hardware resources */
u32 flags;
u64 xfirmware_waking_vector; /* 64-bit version of the Firmware Waking Vector (ACPI 2.0+) */
u8 version; /* Version of this table (ACPI 2.0+) */
u8 reserved[31]; /* Reserved, must be zero */
};
/* Flag macros */
#define ACPI_FACS_S4_BIOS_PRESENT (1) /* 00: S4BIOS support is present */
/* Global lock flags */
#define ACPI_GLOCK_PENDING 0x01 /* 00: Pending global lock ownership */
#define ACPI_GLOCK_OWNED 0x02 /* 01: Global lock is owned */
/*******************************************************************************
*
* FADT - Fixed ACPI Description Table (Signature "FACP")
*
******************************************************************************/
/* Fields common to all versions of the FADT */
struct acpi_table_fadt {
struct acpi_table_header header; /* Common ACPI table header */
u32 facs; /* 32-bit physical address of FACS */
u32 dsdt; /* 32-bit physical address of DSDT */
u8 model; /* System Interrupt Model (ACPI 1.0) not used in ACPI 2.0+ */
u8 preferred_profile; /* Conveys preferred power management profile to OSPM. */
u16 sci_interrupt; /* System vector of SCI interrupt */
u32 smi_command; /* Port address of SMI command port */
u8 acpi_enable; /* Value to write to smi_cmd to enable ACPI */
u8 acpi_disable; /* Value to write to smi_cmd to disable ACPI */
u8 S4bios_request; /* Value to write to SMI CMD to enter S4BIOS state */
u8 pstate_control; /* Processor performance state control */
u32 pm1a_event_block; /* Port address of Power Mgt 1a Event Reg Blk */
u32 pm1b_event_block; /* Port address of Power Mgt 1b Event Reg Blk */
u32 pm1a_control_block; /* Port address of Power Mgt 1a Control Reg Blk */
u32 pm1b_control_block; /* Port address of Power Mgt 1b Control Reg Blk */
u32 pm2_control_block; /* Port address of Power Mgt 2 Control Reg Blk */
u32 pm_timer_block; /* Port address of Power Mgt Timer Ctrl Reg Blk */
u32 gpe0_block; /* Port addr of General Purpose Event 0 Reg Blk */
u32 gpe1_block; /* Port addr of General Purpose Event 1 Reg Blk */
u8 pm1_event_length; /* Byte Length of ports at pm1_x_evt_blk */
u8 pm1_control_length; /* Byte Length of ports at pm1_x_cnt_blk */
u8 pm2_control_length; /* Byte Length of ports at pm2_cnt_blk */
u8 pm_timer_length; /* Byte Length of ports at pm_tmr_blk */
u8 gpe0_block_length; /* Byte Length of ports at gpe0_blk */
u8 gpe1_block_length; /* Byte Length of ports at gpe1_blk */
u8 gpe1_base; /* Offset in gpe model where gpe1 events start */
u8 cst_control; /* Support for the _CST object and C States change notification. */
u16 C2latency; /* Worst case HW latency to enter/exit C2 state */
u16 C3latency; /* Worst case HW latency to enter/exit C3 state */
u16 flush_size; /* Processor's memory cache line width, in bytes */
u16 flush_stride; /* Number of flush strides that need to be read */
u8 duty_offset; /* Processor's duty cycle index in processor's P_CNT reg */
u8 duty_width; /* Processor's duty cycle value bit width in P_CNT register. */
u8 day_alarm; /* Index to day-of-month alarm in RTC CMOS RAM */
u8 month_alarm; /* Index to month-of-year alarm in RTC CMOS RAM */
u8 century; /* Index to century in RTC CMOS RAM */
u16 boot_flags; /* IA-PC Boot Architecture Flags. See Table 5-10 for description */
u8 reserved; /* Reserved, must be zero */
u32 flags; /* Miscellaneous flag bits */
struct acpi_generic_address reset_register; /* Reset register address in GAS format */
u8 reset_value; /* Value to write to the reset_register port to reset the system */
u8 reserved4[3]; /* These three bytes must be zero */
u64 Xfacs; /* 64-bit physical address of FACS */
u64 Xdsdt; /* 64-bit physical address of DSDT */
struct acpi_generic_address xpm1a_event_block; /* Extended Power Mgt 1a Event Reg Blk address */
struct acpi_generic_address xpm1b_event_block; /* Extended Power Mgt 1b Event Reg Blk address */
struct acpi_generic_address xpm1a_control_block; /* Extended Power Mgt 1a Control Reg Blk address */
struct acpi_generic_address xpm1b_control_block; /* Extended Power Mgt 1b Control Reg Blk address */
struct acpi_generic_address xpm2_control_block; /* Extended Power Mgt 2 Control Reg Blk address */
struct acpi_generic_address xpm_timer_block; /* Extended Power Mgt Timer Ctrl Reg Blk address */
struct acpi_generic_address xgpe0_block; /* Extended General Purpose Event 0 Reg Blk address */
struct acpi_generic_address xgpe1_block; /* Extended General Purpose Event 1 Reg Blk address */
};
/* FADT flags */
#define ACPI_FADT_WBINVD (1) /* 00: The wbinvd instruction works properly */
#define ACPI_FADT_WBINVD_FLUSH (1<<1) /* 01: The wbinvd flushes but does not invalidate */
#define ACPI_FADT_C1_SUPPORTED (1<<2) /* 02: All processors support C1 state */
#define ACPI_FADT_C2_MP_SUPPORTED (1<<3) /* 03: C2 state works on MP system */
#define ACPI_FADT_POWER_BUTTON (1<<4) /* 04: Power button is handled as a generic feature */
#define ACPI_FADT_SLEEP_BUTTON (1<<5) /* 05: Sleep button is handled as a generic feature, or not present */
#define ACPI_FADT_FIXED_RTC (1<<6) /* 06: RTC wakeup stat not in fixed register space */
#define ACPI_FADT_S4_RTC_WAKE (1<<7) /* 07: RTC wakeup stat not possible from S4 */
#define ACPI_FADT_32BIT_TIMER (1<<8) /* 08: tmr_val is 32 bits 0=24-bits */
#define ACPI_FADT_DOCKING_SUPPORTED (1<<9) /* 09: Docking supported */
#define ACPI_FADT_RESET_REGISTER (1<<10) /* 10: System reset via the FADT RESET_REG supported */
#define ACPI_FADT_SEALED_CASE (1<<11) /* 11: No internal expansion capabilities and case is sealed */
#define ACPI_FADT_HEADLESS (1<<12) /* 12: No local video capabilities or local input devices */
#define ACPI_FADT_SLEEP_TYPE (1<<13) /* 13: Must execute native instruction after writing SLP_TYPx register */
#define ACPI_FADT_PCI_EXPRESS_WAKE (1<<14) /* 14: System supports PCIEXP_WAKE (STS/EN) bits (ACPI 3.0) */
#define ACPI_FADT_PLATFORM_CLOCK (1<<15) /* 15: OSPM should use platform-provided timer (ACPI 3.0) */
#define ACPI_FADT_S4_RTC_VALID (1<<16) /* 16: Contents of RTC_STS valid after S4 wake (ACPI 3.0) */
#define ACPI_FADT_REMOTE_POWER_ON (1<<17) /* 17: System is compatible with remote power on (ACPI 3.0) */
#define ACPI_FADT_APIC_CLUSTER (1<<18) /* 18: All local APICs must use cluster model (ACPI 3.0) */
#define ACPI_FADT_APIC_PHYSICAL (1<<19) /* 19: All local x_aPICs must use physical dest mode (ACPI 3.0) */
/*
* FADT Prefered Power Management Profiles
*/
enum acpi_prefered_pm_profiles {
PM_UNSPECIFIED = 0,
PM_DESKTOP = 1,
PM_MOBILE = 2,
PM_WORKSTATION = 3,
PM_ENTERPRISE_SERVER = 4,
PM_SOHO_SERVER = 5,
PM_APPLIANCE_PC = 6
};
/* FADT Boot Arch Flags */
#define BAF_LEGACY_DEVICES 0x0001
#define BAF_8042_KEYBOARD_CONTROLLER 0x0002
#define FADT2_REVISION_ID 3
#define FADT2_MINUS_REVISION_ID 2
/* Reset to default packing */
#pragma pack()
#define ACPI_FADT_OFFSET(f) (u8) ACPI_OFFSET (struct acpi_table_fadt, f)
/*
* Get the remaining ACPI tables
*/
#include <acpi/actbl1.h>
#endif /* __ACTBL_H__ */
