include/acpi/actbl.h

   1 /******************************************************************************
   2  *
   3  * Name: actbl.h - Basic ACPI Table Definitions
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2006, R. Byron Moore
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions, and the following disclaimer,
  16  *    without modification.
  17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  18  *    substantially similar to the "NO WARRANTY" disclaimer below
  19  *    ("Disclaimer") and any redistribution must be conditioned upon
  20  *    including a substantially similar Disclaimer requirement for further
  21  *    binary redistribution.
  22  * 3. Neither the names of the above-listed copyright holders nor the names
  23  *    of any contributors may be used to endorse or promote products derived
  24  *    from this software without specific prior written permission.
  25  *
  26  * Alternatively, this software may be distributed under the terms of the
  27  * GNU General Public License ("GPL") version 2 as published by the Free
  28  * Software Foundation.
  29  *
  30  * NO WARRANTY
  31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  41  * POSSIBILITY OF SUCH DAMAGES.
  42  */
  43
  44 #ifndef __ACTBL_H__
  45 #define __ACTBL_H__
  46
  47 /*
  48  * Values for description table header signatures. Useful because they make
  49  * it more difficult to inadvertently type in the wrong signature.
  50  */
  51 #define DSDT_SIG                "DSDT"  /* Differentiated System Description Table */
  52 #define FADT_SIG                "FACP"  /* Fixed ACPI Description Table */
  53 #define FACS_SIG                "FACS"  /* Firmware ACPI Control Structure */
  54 #define PSDT_SIG                "PSDT"  /* Persistent System Description Table */
  55 #define RSDP_SIG                "RSD PTR "      /* Root System Description Pointer */
  56 #define RSDT_SIG                "RSDT"  /* Root System Description Table */
  57 #define XSDT_SIG                "XSDT"  /* Extended  System Description Table */
  58 #define SSDT_SIG                "SSDT"  /* Secondary System Description Table */
  59 #define RSDP_NAME               "RSDP"
  60
  61 /*
  62  * All tables and structures must be byte-packed to match the ACPI
  63  * specification, since the tables are provided by the system BIOS
  64  */
  65 #pragma pack(1)
  66
  67 /*
  68  * These are the ACPI tables that are directly consumed by the subsystem.
  69  *
  70  * The RSDP and FACS do not use the common ACPI table header. All other ACPI
  71  * tables use the header.
  72  *
  73  * Note about bitfields: The u8 type is used for bitfields in ACPI tables.
  74  * This is the only type that is even remotely portable. Anything else is not
  75  * portable, so do not use any other bitfield types.
  76  */
  77
  78 /*******************************************************************************
  79  *
  80  * ACPI Table Header. This common header is used by all tables except the
  81  * RSDP and FACS. The define is used for direct inclusion of header into
  82  * other ACPI tables
  83  *
  84  ******************************************************************************/
  85
  86 #define ACPI_TABLE_HEADER_DEF \
  87         char                            signature[4];           /* ASCII table signature */\
  88         u32                             length;                 /* Length of table in bytes, including this header */\
  89         u8                              revision;               /* ACPI Specification minor version # */\
  90         u8                              checksum;               /* To make sum of entire table == 0 */\
  91         char                            oem_id[6];              /* ASCII OEM identification */\
  92         char                            oem_table_id[8];        /* ASCII OEM table identification */\
  93         u32                             oem_revision;           /* OEM revision number */\
  94         char                            asl_compiler_id[4];     /* ASCII ASL compiler vendor ID */\
  95         u32                             asl_compiler_revision;  /* ASL compiler version */
  96
  97 struct acpi_table_header {
  98 ACPI_TABLE_HEADER_DEF};
  99
 100 /*
 101  * GAS - Generic Address Structure (ACPI 2.0+)
 102  */
 103 struct acpi_generic_address {
 104         u8 address_space_id;    /* Address space where struct or register exists */
 105         u8 register_bit_width;  /* Size in bits of given register */
 106         u8 register_bit_offset; /* Bit offset within the register */
 107         u8 access_width;        /* Minimum Access size (ACPI 3.0) */
 108         u64 address;            /* 64-bit address of struct or register */
 109 };
 110
 111 /*******************************************************************************
 112  *
 113  * RSDP - Root System Description Pointer (Signature is "RSD PTR ")
 114  *
 115  ******************************************************************************/
 116
 117 struct rsdp_descriptor {
 118         char signature[8];      /* ACPI signature, contains "RSD PTR " */
 119         u8 checksum;            /* ACPI 1.0 checksum */
 120         char oem_id[6];         /* OEM identification */
 121         u8 revision;            /* Must be (0) for ACPI 1.0 or (2) for ACPI 2.0+ */
 122         u32 rsdt_physical_address;      /* 32-bit physical address of the RSDT */
 123         u32 length;             /* Table length in bytes, including header (ACPI 2.0+) */
 124         u64 xsdt_physical_address;      /* 64-bit physical address of the XSDT (ACPI 2.0+) */
 125         u8 extended_checksum;   /* Checksum of entire table (ACPI 2.0+) */
 126         u8 reserved[3];         /* Reserved, must be zero */
 127 };
 128
 129 #define ACPI_RSDP_REV0_SIZE     20      /* Size of original ACPI 1.0 RSDP */
 130
 131 /*******************************************************************************
 132  *
 133  * RSDT/XSDT - Root System Description Tables
 134  *
 135  ******************************************************************************/
 136
 137 struct rsdt_descriptor {
 138         ACPI_TABLE_HEADER_DEF u32 table_offset_entry[1];        /* Array of pointers to ACPI tables */
 139 };
 140
 141 struct xsdt_descriptor {
 142         ACPI_TABLE_HEADER_DEF u64 table_offset_entry[1];        /* Array of pointers to ACPI tables */
 143 };
 144
 145 /*******************************************************************************
 146  *
 147  * FACS - Firmware ACPI Control Structure (FACS)
 148  *
 149  ******************************************************************************/
 150
 151 struct facs_descriptor {
 152         char signature[4];      /* ASCII table signature */
 153         u32 length;             /* Length of structure, in bytes */
 154         u32 hardware_signature; /* Hardware configuration signature */
 155         u32 firmware_waking_vector;     /* 32-bit physical address of the Firmware Waking Vector */
 156         u32 global_lock;        /* Global Lock for shared hardware resources */
 157
 158         /* Flags (32 bits) */
 159
 160         u8 S4bios_f:1;          /* 00:    S4BIOS support is present */
 161          u8:7;                  /* 01-07: Reserved, must be zero */
 162         u8 reserved1[3];        /* 08-31: Reserved, must be zero */
 163
 164         u64 xfirmware_waking_vector;    /* 64-bit version of the Firmware Waking Vector (ACPI 2.0+) */
 165         u8 version;             /* Version of this table (ACPI 2.0+) */
 166         u8 reserved[31];        /* Reserved, must be zero */
 167 };
 168
 169 #define ACPI_GLOCK_PENDING      0x01    /* 00: Pending global lock ownership */
 170 #define ACPI_GLOCK_OWNED        0x02    /* 01: Global lock is owned */
 171
 172 /*
 173  * Common FACS - This is a version-independent FACS structure used for internal use only
 174  */
 175 struct acpi_common_facs {
 176         u32 *global_lock;
 177         u64 *firmware_waking_vector;
 178         u8 vector_width;
 179 };
 180
 181 /*******************************************************************************
 182  *
 183  * FADT - Fixed ACPI Description Table (Signature "FACP")
 184  *
 185  ******************************************************************************/
 186
 187 /* Fields common to all versions of the FADT */
 188
 189 #define ACPI_FADT_COMMON \
 190         ACPI_TABLE_HEADER_DEF \
 191         u32                             V1_firmware_ctrl;   /* 32-bit physical address of FACS */ \
 192         u32                             V1_dsdt;            /* 32-bit physical address of DSDT */ \
 193         u8                              reserved1;          /* System Interrupt Model isn't used in ACPI 2.0*/ \
 194         u8                              prefer_PM_profile;  /* Conveys preferred power management profile to OSPM. */ \
 195         u16                             sci_int;            /* System vector of SCI interrupt */ \
 196         u32                             smi_cmd;            /* Port address of SMI command port */ \
 197         u8                              acpi_enable;        /* Value to write to smi_cmd to enable ACPI */ \
 198         u8                              acpi_disable;       /* Value to write to smi_cmd to disable ACPI */ \
 199         u8                              S4bios_req;         /* Value to write to SMI CMD to enter S4BIOS state */ \
 200         u8                              pstate_cnt;         /* Processor performance state control*/ \
 201         u32                             V1_pm1a_evt_blk;    /* Port address of Power Mgt 1a Event Reg Blk */ \
 202         u32                             V1_pm1b_evt_blk;    /* Port address of Power Mgt 1b Event Reg Blk */ \
 203         u32                             V1_pm1a_cnt_blk;    /* Port address of Power Mgt 1a Control Reg Blk */ \
 204         u32                             V1_pm1b_cnt_blk;    /* Port address of Power Mgt 1b Control Reg Blk */ \
 205         u32                             V1_pm2_cnt_blk;     /* Port address of Power Mgt 2 Control Reg Blk */ \
 206         u32                             V1_pm_tmr_blk;      /* Port address of Power Mgt Timer Ctrl Reg Blk */ \
 207         u32                             V1_gpe0_blk;        /* Port addr of General Purpose acpi_event 0 Reg Blk */ \
 208         u32                             V1_gpe1_blk;        /* Port addr of General Purpose acpi_event 1 Reg Blk */ \
 209         u8                              pm1_evt_len;        /* Byte Length of ports at pm1_x_evt_blk */ \
 210         u8                              pm1_cnt_len;        /* Byte Length of ports at pm1_x_cnt_blk */ \
 211         u8                              pm2_cnt_len;        /* Byte Length of ports at pm2_cnt_blk */ \
 212         u8                              pm_tm_len;          /* Byte Length of ports at pm_tm_blk */ \
 213         u8                              gpe0_blk_len;       /* Byte Length of ports at gpe0_blk */ \
 214         u8                              gpe1_blk_len;       /* Byte Length of ports at gpe1_blk */ \
 215         u8                              gpe1_base;          /* Offset in gpe model where gpe1 events start */ \
 216         u8                              cst_cnt;            /* Support for the _CST object and C States change notification.*/ \
 217         u16                             plvl2_lat;          /* Worst case HW latency to enter/exit C2 state */ \
 218         u16                             plvl3_lat;          /* Worst case HW latency to enter/exit C3 state */ \
 219         u16                             flush_size;         /* Processor's memory cache line width, in bytes */ \
 220         u16                             flush_stride;       /* Number of flush strides that need to be read */ \
 221         u8                              duty_offset;        /* Processor's duty cycle index in processor's P_CNT reg*/ \
 222         u8                              duty_width;         /* Processor's duty cycle value bit width in P_CNT register.*/ \
 223         u8                              day_alrm;           /* Index to day-of-month alarm in RTC CMOS RAM */ \
 224         u8                              mon_alrm;           /* Index to month-of-year alarm in RTC CMOS RAM */ \
 225         u8                              century;            /* Index to century in RTC CMOS RAM */ \
 226         u16                             iapc_boot_arch;     /* IA-PC Boot Architecture Flags. See Table 5-10 for description*/ \
 227         u8                              reserved2;          /* Reserved, must be zero */
 228
 229 /*
 230  * ACPI 2.0+ FADT
 231  */
 232 struct fadt_descriptor {
 233         ACPI_FADT_COMMON
 234             /* Flags (32 bits) */
 235         u8 wb_invd:1;           /* 00:    The wbinvd instruction works properly */
 236         u8 wb_invd_flush:1;     /* 01:    The wbinvd flushes but does not invalidate */
 237         u8 proc_c1:1;           /* 02:    All processors support C1 state */
 238         u8 plvl2_up:1;          /* 03:    C2 state works on MP system */
 239         u8 pwr_button:1;        /* 04:    Power button is handled as a generic feature */
 240         u8 sleep_button:1;      /* 05:    Sleep button is handled as a generic feature, or not present */
 241         u8 fixed_rTC:1;         /* 06:    RTC wakeup stat not in fixed register space */
 242         u8 rtcs4:1;             /* 07:    RTC wakeup stat not possible from S4 */
 243         u8 tmr_val_ext:1;       /* 08:    tmr_val is 32 bits 0=24-bits */
 244         u8 dock_cap:1;          /* 09:    Docking supported */
 245         u8 reset_reg_sup:1;     /* 10:    System reset via the FADT RESET_REG supported */
 246         u8 sealed_case:1;       /* 11:    No internal expansion capabilities and case is sealed */
 247         u8 headless:1;          /* 12:    No local video capabilities or local input devices */
 248         u8 cpu_sw_sleep:1;      /* 13:    Must execute native instruction after writing SLP_TYPx register */
 249
 250         u8 pci_exp_wak:1;       /* 14:    System supports PCIEXP_WAKE (STS/EN) bits (ACPI 3.0) */
 251         u8 use_platform_clock:1;        /* 15:    OSPM should use platform-provided timer (ACPI 3.0) */
 252         u8 S4rtc_sts_valid:1;   /* 16:    Contents of RTC_STS valid after S4 wake (ACPI 3.0) */
 253         u8 remote_power_on_capable:1;   /* 17:    System is compatible with remote power on (ACPI 3.0) */
 254         u8 force_apic_cluster_model:1;  /* 18:    All local APICs must use cluster model (ACPI 3.0) */
 255         u8 force_apic_physical_destination_mode:1;      /* 19:   All local x_aPICs must use physical dest mode (ACPI 3.0) */
 256          u8:4;                  /* 20-23: Reserved, must be zero */
 257         u8 reserved3;           /* 24-31: Reserved, must be zero */
 258
 259         struct acpi_generic_address reset_register;     /* Reset register address in GAS format */
 260         u8 reset_value;         /* Value to write to the reset_register port to reset the system */
 261         u8 reserved4[3];        /* These three bytes must be zero */
 262         u64 xfirmware_ctrl;     /* 64-bit physical address of FACS */
 263         u64 Xdsdt;              /* 64-bit physical address of DSDT */
 264         struct acpi_generic_address xpm1a_evt_blk;      /* Extended Power Mgt 1a acpi_event Reg Blk address */
 265         struct acpi_generic_address xpm1b_evt_blk;      /* Extended Power Mgt 1b acpi_event Reg Blk address */
 266         struct acpi_generic_address xpm1a_cnt_blk;      /* Extended Power Mgt 1a Control Reg Blk address */
 267         struct acpi_generic_address xpm1b_cnt_blk;      /* Extended Power Mgt 1b Control Reg Blk address */
 268         struct acpi_generic_address xpm2_cnt_blk;       /* Extended Power Mgt 2 Control Reg Blk address */
 269         struct acpi_generic_address xpm_tmr_blk;        /* Extended Power Mgt Timer Ctrl Reg Blk address */
 270         struct acpi_generic_address xgpe0_blk;  /* Extended General Purpose acpi_event 0 Reg Blk address */
 271         struct acpi_generic_address xgpe1_blk;  /* Extended General Purpose acpi_event 1 Reg Blk address */
 272 };
 273
 274 /*
 275  * "Down-revved" ACPI 2.0 FADT descriptor
 276  * Defined here to allow compiler to generate the length of the struct
 277  */
 278 struct fadt_descriptor_rev2_minus {
 279         ACPI_FADT_COMMON u32 flags;
 280         struct acpi_generic_address reset_register;     /* Reset register address in GAS format */
 281         u8 reset_value;         /* Value to write to the reset_register port to reset the system. */
 282         u8 reserved7[3];        /* Reserved, must be zero */
 283 };
 284
 285 /*
 286  * ACPI 1.0 FADT
 287  * Defined here to allow compiler to generate the length of the struct
 288  */
 289 struct fadt_descriptor_rev1 {
 290         ACPI_FADT_COMMON u32 flags;
 291 };
 292
 293 /* FADT: Prefered Power Management Profiles */
 294
 295 #define PM_UNSPECIFIED                  0
 296 #define PM_DESKTOP                      1
 297 #define PM_MOBILE                       2
 298 #define PM_WORKSTATION                  3
 299 #define PM_ENTERPRISE_SERVER            4
 300 #define PM_SOHO_SERVER                  5
 301 #define PM_APPLIANCE_PC                 6
 302
 303 /* FADT: Boot Arch Flags */
 304
 305 #define BAF_LEGACY_DEVICES              0x0001
 306 #define BAF_8042_KEYBOARD_CONTROLLER    0x0002
 307
 308 #define FADT2_REVISION_ID               3
 309 #define FADT2_MINUS_REVISION_ID         2
 310
 311 /* Reset to default packing */
 312
 313 #pragma pack()
 314
 315 /*
 316  * This macro is temporary until the table bitfield flag definitions
 317  * are removed and replaced by a Flags field.
 318  */
 319 #define ACPI_FLAG_OFFSET(d,f,o)         (u8) (ACPI_OFFSET (d,f) + \
 320                           sizeof(((d *)0)->f) + o)
 321 /*
 322  * Get the remaining ACPI tables
 323  */
 324 #include "actbl1.h"
 325
 326 /*
 327  * ACPI Table information.  We save the table address, length,
 328  * and type of memory allocation (mapped or allocated) for each
 329  * table for 1) when we exit, and 2) if a new table is installed
 330  */
 331 #define ACPI_MEM_NOT_ALLOCATED  0
 332 #define ACPI_MEM_ALLOCATED      1
 333 #define ACPI_MEM_MAPPED         2
 334
 335 /* Definitions for the Flags bitfield member of struct acpi_table_support */
 336
 337 #define ACPI_TABLE_SINGLE       0x00
 338 #define ACPI_TABLE_MULTIPLE     0x01
 339 #define ACPI_TABLE_EXECUTABLE   0x02
 340
 341 #define ACPI_TABLE_ROOT         0x00
 342 #define ACPI_TABLE_PRIMARY      0x10
 343 #define ACPI_TABLE_SECONDARY    0x20
 344 #define ACPI_TABLE_ALL          0x30
 345 #define ACPI_TABLE_TYPE_MASK    0x30
 346
 347 /* Data about each known table type */
 348
 349 struct acpi_table_support {
 350         char *name;
 351         char *signature;
 352         void **global_ptr;
 353         u8 sig_length;
 354         u8 flags;
 355 };
 356
 357 extern u8 acpi_fadt_is_v1;      /* is set to 1 if FADT is revision 1,
 358                                  * needed for certain workarounds */
 359 /* Macros used to generate offsets to specific table fields */
 360
 361 #define ACPI_FACS_OFFSET(f)             (u8) ACPI_OFFSET (struct facs_descriptor,f)
 362 #define ACPI_FADT_OFFSET(f)             (u8) ACPI_OFFSET (struct fadt_descriptor, f)
 363 #define ACPI_GAS_OFFSET(f)              (u8) ACPI_OFFSET (struct acpi_generic_address,f)
 364 #define ACPI_HDR_OFFSET(f)              (u8) ACPI_OFFSET (struct acpi_table_header,f)
 365 #define ACPI_RSDP_OFFSET(f)             (u8) ACPI_OFFSET (struct rsdp_descriptor,f)
 366
 367 #define ACPI_FADT_FLAG_OFFSET(f,o)      ACPI_FLAG_OFFSET (struct fadt_descriptor,f,o)
 368 #define ACPI_FACS_FLAG_OFFSET(f,o)      ACPI_FLAG_OFFSET (struct facs_descriptor,f,o)
 369
 370 #endif                          /* __ACTBL_H__ */