LXR linux/include/acpi/amlcode.h

   1/******************************************************************************
   2 *
   3 * Name: amlcode.h - Definitions for AML, as included in "definition blocks"
   4 *                   Declarations and definitions contained herein are derived
   5 *                   directly from the ACPI specification.
   6 *
   7 *****************************************************************************/
   8
   9/*
  10 * Copyright (C) 2000 - 2007, R. Byron Moore
  11 * All rights reserved.
  12 *
  13 * Redistribution and use in source and binary forms, with or without
  14 * modification, are permitted provided that the following conditions
  15 * are met:
  16 * 1. Redistributions of source code must retain the above copyright
  17 *    notice, this list of conditions, and the following disclaimer,
  18 *    without modification.
  19 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  20 *    substantially similar to the "NO WARRANTY" disclaimer below
  21 *    ("Disclaimer") and any redistribution must be conditioned upon
  22 *    including a substantially similar Disclaimer requirement for further
  23 *    binary redistribution.
  24 * 3. Neither the names of the above-listed copyright holders nor the names
  25 *    of any contributors may be used to endorse or promote products derived
  26 *    from this software without specific prior written permission.
  27 *
  28 * Alternatively, this software may be distributed under the terms of the
  29 * GNU General Public License ("GPL") version 2 as published by the Free
  30 * Software Foundation.
  31 *
  32 * NO WARRANTY
  33 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  34 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  35 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  36 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  37 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  38 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  39 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  41 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  42 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  43 * POSSIBILITY OF SUCH DAMAGES.
  44 */
  45
  46#ifndef __AMLCODE_H__
  47#define __AMLCODE_H__
  48
  49/* primary opcodes */
  50
  51#define AML_NULL_CHAR               (u16) 0x00
  52
  53#define AML_ZERO_OP                 (u16) 0x00
  54#define AML_ONE_OP                  (u16) 0x01
  55#define AML_UNASSIGNED              (u16) 0x02
  56#define AML_ALIAS_OP                (u16) 0x06
  57#define AML_NAME_OP                 (u16) 0x08
  58#define AML_BYTE_OP                 (u16) 0x0a
  59#define AML_WORD_OP                 (u16) 0x0b
  60#define AML_DWORD_OP                (u16) 0x0c
  61#define AML_STRING_OP               (u16) 0x0d
  62#define AML_QWORD_OP                (u16) 0x0e  /* ACPI 2.0 */
  63#define AML_SCOPE_OP                (u16) 0x10
  64#define AML_BUFFER_OP               (u16) 0x11
  65#define AML_PACKAGE_OP              (u16) 0x12
  66#define AML_VAR_PACKAGE_OP          (u16) 0x13  /* ACPI 2.0 */
  67#define AML_METHOD_OP               (u16) 0x14
  68#define AML_DUAL_NAME_PREFIX        (u16) 0x2e
  69#define AML_MULTI_NAME_PREFIX_OP    (u16) 0x2f
  70#define AML_NAME_CHAR_SUBSEQ        (u16) 0x30
  71#define AML_NAME_CHAR_FIRST         (u16) 0x41
  72#define AML_EXTENDED_OP_PREFIX      (u16) 0x5b
  73#define AML_ROOT_PREFIX             (u16) 0x5c
  74#define AML_PARENT_PREFIX           (u16) 0x5e
  75#define AML_LOCAL_OP                (u16) 0x60
  76#define AML_LOCAL0                  (u16) 0x60
  77#define AML_LOCAL1                  (u16) 0x61
  78#define AML_LOCAL2                  (u16) 0x62
  79#define AML_LOCAL3                  (u16) 0x63
  80#define AML_LOCAL4                  (u16) 0x64
  81#define AML_LOCAL5                  (u16) 0x65
  82#define AML_LOCAL6                  (u16) 0x66
  83#define AML_LOCAL7                  (u16) 0x67
  84#define AML_ARG_OP                  (u16) 0x68
  85#define AML_ARG0                    (u16) 0x68
  86#define AML_ARG1                    (u16) 0x69
  87#define AML_ARG2                    (u16) 0x6a
  88#define AML_ARG3                    (u16) 0x6b
  89#define AML_ARG4                    (u16) 0x6c
  90#define AML_ARG5                    (u16) 0x6d
  91#define AML_ARG6                    (u16) 0x6e
  92#define AML_STORE_OP                (u16) 0x70
  93#define AML_REF_OF_OP               (u16) 0x71
  94#define AML_ADD_OP                  (u16) 0x72
  95#define AML_CONCAT_OP               (u16) 0x73
  96#define AML_SUBTRACT_OP             (u16) 0x74
  97#define AML_INCREMENT_OP            (u16) 0x75
  98#define AML_DECREMENT_OP            (u16) 0x76
  99#define AML_MULTIPLY_OP             (u16) 0x77
 100#define AML_DIVIDE_OP               (u16) 0x78
 101#define AML_SHIFT_LEFT_OP           (u16) 0x79
 102#define AML_SHIFT_RIGHT_OP          (u16) 0x7a
 103#define AML_BIT_AND_OP              (u16) 0x7b
 104#define AML_BIT_NAND_OP             (u16) 0x7c
 105#define AML_BIT_OR_OP               (u16) 0x7d
 106#define AML_BIT_NOR_OP              (u16) 0x7e
 107#define AML_BIT_XOR_OP              (u16) 0x7f
 108#define AML_BIT_NOT_OP              (u16) 0x80
 109#define AML_FIND_SET_LEFT_BIT_OP    (u16) 0x81
 110#define AML_FIND_SET_RIGHT_BIT_OP   (u16) 0x82
 111#define AML_DEREF_OF_OP             (u16) 0x83
 112#define AML_CONCAT_RES_OP           (u16) 0x84  /* ACPI 2.0 */
 113#define AML_MOD_OP                  (u16) 0x85  /* ACPI 2.0 */
 114#define AML_NOTIFY_OP               (u16) 0x86
 115#define AML_SIZE_OF_OP              (u16) 0x87
 116#define AML_INDEX_OP                (u16) 0x88
 117#define AML_MATCH_OP                (u16) 0x89
 118#define AML_CREATE_DWORD_FIELD_OP   (u16) 0x8a
 119#define AML_CREATE_WORD_FIELD_OP    (u16) 0x8b
 120#define AML_CREATE_BYTE_FIELD_OP    (u16) 0x8c
 121#define AML_CREATE_BIT_FIELD_OP     (u16) 0x8d
 122#define AML_TYPE_OP                 (u16) 0x8e
 123#define AML_CREATE_QWORD_FIELD_OP   (u16) 0x8f  /* ACPI 2.0 */
 124#define AML_LAND_OP                 (u16) 0x90
 125#define AML_LOR_OP                  (u16) 0x91
 126#define AML_LNOT_OP                 (u16) 0x92
 127#define AML_LEQUAL_OP               (u16) 0x93
 128#define AML_LGREATER_OP             (u16) 0x94
 129#define AML_LLESS_OP                (u16) 0x95
 130#define AML_TO_BUFFER_OP            (u16) 0x96  /* ACPI 2.0 */
 131#define AML_TO_DECSTRING_OP         (u16) 0x97  /* ACPI 2.0 */
 132#define AML_TO_HEXSTRING_OP         (u16) 0x98  /* ACPI 2.0 */
 133#define AML_TO_INTEGER_OP           (u16) 0x99  /* ACPI 2.0 */
 134#define AML_TO_STRING_OP            (u16) 0x9c  /* ACPI 2.0 */
 135#define AML_COPY_OP                 (u16) 0x9d  /* ACPI 2.0 */
 136#define AML_MID_OP                  (u16) 0x9e  /* ACPI 2.0 */
 137#define AML_CONTINUE_OP             (u16) 0x9f  /* ACPI 2.0 */
 138#define AML_IF_OP                   (u16) 0xa0
 139#define AML_ELSE_OP                 (u16) 0xa1
 140#define AML_WHILE_OP                (u16) 0xa2
 141#define AML_NOOP_OP                 (u16) 0xa3
 142#define AML_RETURN_OP               (u16) 0xa4
 143#define AML_BREAK_OP                (u16) 0xa5
 144#define AML_BREAK_POINT_OP          (u16) 0xcc
 145#define AML_ONES_OP                 (u16) 0xff
 146
 147/* prefixed opcodes */
 148
 149#define AML_EXTENDED_OPCODE         (u16) 0x5b00        /* prefix for 2-byte opcodes */
 150
 151#define AML_MUTEX_OP                (u16) 0x5b01
 152#define AML_EVENT_OP                (u16) 0x5b02
 153#define AML_SHIFT_RIGHT_BIT_OP      (u16) 0x5b10
 154#define AML_SHIFT_LEFT_BIT_OP       (u16) 0x5b11
 155#define AML_COND_REF_OF_OP          (u16) 0x5b12
 156#define AML_CREATE_FIELD_OP         (u16) 0x5b13
 157#define AML_LOAD_TABLE_OP           (u16) 0x5b1f        /* ACPI 2.0 */
 158#define AML_LOAD_OP                 (u16) 0x5b20
 159#define AML_STALL_OP                (u16) 0x5b21
 160#define AML_SLEEP_OP                (u16) 0x5b22
 161#define AML_ACQUIRE_OP              (u16) 0x5b23
 162#define AML_SIGNAL_OP               (u16) 0x5b24
 163#define AML_WAIT_OP                 (u16) 0x5b25
 164#define AML_RESET_OP                (u16) 0x5b26
 165#define AML_RELEASE_OP              (u16) 0x5b27
 166#define AML_FROM_BCD_OP             (u16) 0x5b28
 167#define AML_TO_BCD_OP               (u16) 0x5b29
 168#define AML_UNLOAD_OP               (u16) 0x5b2a
 169#define AML_REVISION_OP             (u16) 0x5b30
 170#define AML_DEBUG_OP                (u16) 0x5b31
 171#define AML_FATAL_OP                (u16) 0x5b32
 172#define AML_TIMER_OP                (u16) 0x5b33        /* ACPI 3.0 */
 173#define AML_REGION_OP               (u16) 0x5b80
 174#define AML_FIELD_OP                (u16) 0x5b81
 175#define AML_DEVICE_OP               (u16) 0x5b82
 176#define AML_PROCESSOR_OP            (u16) 0x5b83
 177#define AML_POWER_RES_OP            (u16) 0x5b84
 178#define AML_THERMAL_ZONE_OP         (u16) 0x5b85
 179#define AML_INDEX_FIELD_OP          (u16) 0x5b86
 180#define AML_BANK_FIELD_OP           (u16) 0x5b87
 181#define AML_DATA_REGION_OP          (u16) 0x5b88        /* ACPI 2.0 */
 182
 183/*
 184 * Combination opcodes (actually two one-byte opcodes)
 185 * Used by the disassembler and i_aSL compiler
 186 */
 187#define AML_LGREATEREQUAL_OP        (u16) 0x9295
 188#define AML_LLESSEQUAL_OP           (u16) 0x9294
 189#define AML_LNOTEQUAL_OP            (u16) 0x9293
 190
 191/*
 192 * Internal opcodes
 193 * Use only "Unknown" AML opcodes, don't attempt to use
 194 * any valid ACPI ASCII values (A-Z, 0-9, '-')
 195 */
 196#define AML_INT_NAMEPATH_OP         (u16) 0x002d
 197#define AML_INT_NAMEDFIELD_OP       (u16) 0x0030
 198#define AML_INT_RESERVEDFIELD_OP    (u16) 0x0031
 199#define AML_INT_ACCESSFIELD_OP      (u16) 0x0032
 200#define AML_INT_BYTELIST_OP         (u16) 0x0033
 201#define AML_INT_STATICSTRING_OP     (u16) 0x0034
 202#define AML_INT_METHODCALL_OP       (u16) 0x0035
 203#define AML_INT_RETURN_VALUE_OP     (u16) 0x0036
 204#define AML_INT_EVAL_SUBTREE_OP     (u16) 0x0037
 205
 206#define ARG_NONE                    0x0
 207
 208/*
 209 * Argument types for the AML Parser
 210 * Each field in the arg_types u32 is 5 bits, allowing for a maximum of 6 arguments.
 211 * There can be up to 31 unique argument types
 212 * Zero is reserved as end-of-list indicator
 213 */
 214#define ARGP_BYTEDATA               0x01
 215#define ARGP_BYTELIST               0x02
 216#define ARGP_CHARLIST               0x03
 217#define ARGP_DATAOBJ                0x04
 218#define ARGP_DATAOBJLIST            0x05
 219#define ARGP_DWORDDATA              0x06
 220#define ARGP_FIELDLIST              0x07
 221#define ARGP_NAME                   0x08
 222#define ARGP_NAMESTRING             0x09
 223#define ARGP_OBJLIST                0x0A
 224#define ARGP_PKGLENGTH              0x0B
 225#define ARGP_SUPERNAME              0x0C
 226#define ARGP_TARGET                 0x0D
 227#define ARGP_TERMARG                0x0E
 228#define ARGP_TERMLIST               0x0F
 229#define ARGP_WORDDATA               0x10
 230#define ARGP_QWORDDATA              0x11
 231#define ARGP_SIMPLENAME             0x12
 232
 233/*
 234 * Resolved argument types for the AML Interpreter
 235 * Each field in the arg_types u32 is 5 bits, allowing for a maximum of 6 arguments.
 236 * There can be up to 31 unique argument types (0 is end-of-arg-list indicator)
 237 *
 238 * Note1: These values are completely independent from the ACPI_TYPEs
 239 *        i.e., ARGI_INTEGER != ACPI_TYPE_INTEGER
 240 *
 241 * Note2: If and when 5 bits becomes insufficient, it would probably be best
 242 * to convert to a 6-byte array of argument types, allowing 8 bits per argument.
 243 */
 244
 245/* Single, simple types */
 246
 247#define ARGI_ANYTYPE                0x01        /* Don't care */
 248#define ARGI_PACKAGE                0x02
 249#define ARGI_EVENT                  0x03
 250#define ARGI_MUTEX                  0x04
 251#define ARGI_DDBHANDLE              0x05
 252
 253/* Interchangeable types (via implicit conversion) */
 254
 255#define ARGI_INTEGER                0x06
 256#define ARGI_STRING                 0x07
 257#define ARGI_BUFFER                 0x08
 258#define ARGI_BUFFER_OR_STRING       0x09        /* Used by MID op only */
 259#define ARGI_COMPUTEDATA            0x0A        /* Buffer, String, or Integer */
 260
 261/* Reference objects */
 262
 263#define ARGI_INTEGER_REF            0x0B
 264#define ARGI_OBJECT_REF             0x0C
 265#define ARGI_DEVICE_REF             0x0D
 266#define ARGI_REFERENCE              0x0E
 267#define ARGI_TARGETREF              0x0F        /* Target, subject to implicit conversion */
 268#define ARGI_FIXED_TARGET           0x10        /* Target, no implicit conversion */
 269#define ARGI_SIMPLE_TARGET          0x11        /* Name, Local, Arg -- no implicit conversion */
 270
 271/* Multiple/complex types */
 272
 273#define ARGI_DATAOBJECT             0x12        /* Buffer, String, package or reference to a Node - Used only by size_of operator */
 274#define ARGI_COMPLEXOBJ             0x13        /* Buffer, String, or package (Used by INDEX op only) */
 275#define ARGI_REF_OR_STRING          0x14        /* Reference or String (Used by DEREFOF op only) */
 276#define ARGI_REGION_OR_BUFFER       0x15        /* Used by LOAD op only */
 277#define ARGI_DATAREFOBJ             0x16
 278
 279/* Note: types above can expand to 0x1F maximum */
 280
 281#define ARGI_INVALID_OPCODE         0xFFFFFFFF
 282
 283/*
 284 * hash offsets
 285 */
 286#define AML_EXTOP_HASH_OFFSET       22
 287#define AML_LNOT_HASH_OFFSET        19
 288
 289/*
 290 * opcode groups and types
 291 */
 292#define OPGRP_NAMED                 0x01
 293#define OPGRP_FIELD                 0x02
 294#define OPGRP_BYTELIST              0x04
 295
 296/*
 297 * Opcode information
 298 */
 299
 300/* Opcode flags */
 301
 302#define AML_LOGICAL                 0x0001
 303#define AML_LOGICAL_NUMERIC         0x0002
 304#define AML_MATH                    0x0004
 305#define AML_CREATE                  0x0008
 306#define AML_FIELD                   0x0010
 307#define AML_DEFER                   0x0020
 308#define AML_NAMED                   0x0040
 309#define AML_NSNODE                  0x0080
 310#define AML_NSOPCODE                0x0100
 311#define AML_NSOBJECT                0x0200
 312#define AML_HAS_RETVAL              0x0400
 313#define AML_HAS_TARGET              0x0800
 314#define AML_HAS_ARGS                0x1000
 315#define AML_CONSTANT                0x2000
 316#define AML_NO_OPERAND_RESOLVE      0x4000
 317
 318/* Convenient flag groupings */
 319
 320#define AML_FLAGS_EXEC_0A_0T_1R                                     AML_HAS_RETVAL
 321#define AML_FLAGS_EXEC_1A_0T_0R     AML_HAS_ARGS        /* Monadic1  */
 322#define AML_FLAGS_EXEC_1A_0T_1R     AML_HAS_ARGS |                  AML_HAS_RETVAL      /* Monadic2  */
 323#define AML_FLAGS_EXEC_1A_1T_0R     AML_HAS_ARGS | AML_HAS_TARGET
 324#define AML_FLAGS_EXEC_1A_1T_1R     AML_HAS_ARGS | AML_HAS_TARGET | AML_HAS_RETVAL      /* monadic2_r */
 325#define AML_FLAGS_EXEC_2A_0T_0R     AML_HAS_ARGS        /* Dyadic1   */
 326#define AML_FLAGS_EXEC_2A_0T_1R     AML_HAS_ARGS |                  AML_HAS_RETVAL      /* Dyadic2   */
 327#define AML_FLAGS_EXEC_2A_1T_1R     AML_HAS_ARGS | AML_HAS_TARGET | AML_HAS_RETVAL      /* dyadic2_r  */
 328#define AML_FLAGS_EXEC_2A_2T_1R     AML_HAS_ARGS | AML_HAS_TARGET | AML_HAS_RETVAL
 329#define AML_FLAGS_EXEC_3A_0T_0R     AML_HAS_ARGS
 330#define AML_FLAGS_EXEC_3A_1T_1R     AML_HAS_ARGS | AML_HAS_TARGET | AML_HAS_RETVAL
 331#define AML_FLAGS_EXEC_6A_0T_1R     AML_HAS_ARGS |                  AML_HAS_RETVAL
 332
 333/*
 334 * The opcode Type is used in a dispatch table, do not change
 335 * without updating the table.
 336 */
 337#define AML_TYPE_EXEC_0A_0T_1R      0x00
 338#define AML_TYPE_EXEC_1A_0T_0R      0x01        /* Monadic1  */
 339#define AML_TYPE_EXEC_1A_0T_1R      0x02        /* Monadic2  */
 340#define AML_TYPE_EXEC_1A_1T_0R      0x03
 341#define AML_TYPE_EXEC_1A_1T_1R      0x04        /* monadic2_r */
 342#define AML_TYPE_EXEC_2A_0T_0R      0x05        /* Dyadic1   */
 343#define AML_TYPE_EXEC_2A_0T_1R      0x06        /* Dyadic2   */
 344#define AML_TYPE_EXEC_2A_1T_1R      0x07        /* dyadic2_r  */
 345#define AML_TYPE_EXEC_2A_2T_1R      0x08
 346#define AML_TYPE_EXEC_3A_0T_0R      0x09
 347#define AML_TYPE_EXEC_3A_1T_1R      0x0A
 348#define AML_TYPE_EXEC_6A_0T_1R      0x0B
 349/* End of types used in dispatch table */
 350
 351#define AML_TYPE_LITERAL            0x0B
 352#define AML_TYPE_CONSTANT           0x0C
 353#define AML_TYPE_METHOD_ARGUMENT    0x0D
 354#define AML_TYPE_LOCAL_VARIABLE     0x0E
 355#define AML_TYPE_DATA_TERM          0x0F
 356
 357/* Generic for an op that returns a value */
 358
 359#define AML_TYPE_METHOD_CALL        0x10
 360
 361/* Misc */
 362
 363#define AML_TYPE_CREATE_FIELD       0x11
 364#define AML_TYPE_CREATE_OBJECT      0x12
 365#define AML_TYPE_CONTROL            0x13
 366#define AML_TYPE_NAMED_NO_OBJ       0x14
 367#define AML_TYPE_NAMED_FIELD        0x15
 368#define AML_TYPE_NAMED_SIMPLE       0x16
 369#define AML_TYPE_NAMED_COMPLEX      0x17
 370#define AML_TYPE_RETURN             0x18
 371
 372#define AML_TYPE_UNDEFINED          0x19
 373#define AML_TYPE_BOGUS              0x1A
 374
 375/* AML Package Length encodings */
 376
 377#define ACPI_AML_PACKAGE_TYPE1      0x40
 378#define ACPI_AML_PACKAGE_TYPE2      0x4000
 379#define ACPI_AML_PACKAGE_TYPE3      0x400000
 380#define ACPI_AML_PACKAGE_TYPE4      0x40000000
 381
 382/*
 383 * Opcode classes
 384 */
 385#define AML_CLASS_EXECUTE           0x00
 386#define AML_CLASS_CREATE            0x01
 387#define AML_CLASS_ARGUMENT          0x02
 388#define AML_CLASS_NAMED_OBJECT      0x03
 389#define AML_CLASS_CONTROL           0x04
 390#define AML_CLASS_ASCII             0x05
 391#define AML_CLASS_PREFIX            0x06
 392#define AML_CLASS_INTERNAL          0x07
 393#define AML_CLASS_RETURN_VALUE      0x08
 394#define AML_CLASS_METHOD_CALL       0x09
 395#define AML_CLASS_UNKNOWN           0x0A
 396
 397/* Predefined Operation Region space_iDs */
 398
 399typedef enum {
 400        REGION_MEMORY = 0,
 401        REGION_IO,
 402        REGION_PCI_CONFIG,
 403        REGION_EC,
 404        REGION_SMBUS,
 405        REGION_CMOS,
 406        REGION_PCI_BAR,
 407        REGION_DATA_TABLE,      /* Internal use only */
 408        REGION_FIXED_HW = 0x7F
 409} AML_REGION_TYPES;
 410
 411/* Comparison operation codes for match_op operator */
 412
 413typedef enum {
 414        MATCH_MTR = 0,
 415        MATCH_MEQ = 1,
 416        MATCH_MLE = 2,
 417        MATCH_MLT = 3,
 418        MATCH_MGE = 4,
 419        MATCH_MGT = 5
 420} AML_MATCH_OPERATOR;
 421
 422#define MAX_MATCH_OPERATOR          5
 423
 424/*
 425 * field_flags
 426 *
 427 * This byte is extracted from the AML and includes three separate
 428 * pieces of information about the field:
 429 * 1) The field access type
 430 * 2) The field update rule
 431 * 3) The lock rule for the field
 432 *
 433 * Bits 00 - 03 : access_type (any_acc, byte_acc, etc.)
 434 *      04      : lock_rule (1 == Lock)
 435 *      05 - 06 : update_rule
 436 */
 437#define AML_FIELD_ACCESS_TYPE_MASK  0x0F
 438#define AML_FIELD_LOCK_RULE_MASK    0x10
 439#define AML_FIELD_UPDATE_RULE_MASK  0x60
 440
 441/* 1) Field Access Types */
 442
 443typedef enum {
 444        AML_FIELD_ACCESS_ANY = 0x00,
 445        AML_FIELD_ACCESS_BYTE = 0x01,
 446        AML_FIELD_ACCESS_WORD = 0x02,
 447        AML_FIELD_ACCESS_DWORD = 0x03,
 448        AML_FIELD_ACCESS_QWORD = 0x04,  /* ACPI 2.0 */
 449        AML_FIELD_ACCESS_BUFFER = 0x05  /* ACPI 2.0 */
 450} AML_ACCESS_TYPE;
 451
 452/* 2) Field Lock Rules */
 453
 454typedef enum {
 455        AML_FIELD_LOCK_NEVER = 0x00,
 456        AML_FIELD_LOCK_ALWAYS = 0x10
 457} AML_LOCK_RULE;
 458
 459/* 3) Field Update Rules */
 460
 461typedef enum {
 462        AML_FIELD_UPDATE_PRESERVE = 0x00,
 463        AML_FIELD_UPDATE_WRITE_AS_ONES = 0x20,
 464        AML_FIELD_UPDATE_WRITE_AS_ZEROS = 0x40
 465} AML_UPDATE_RULE;
 466
 467/*
 468 * Field Access Attributes.
 469 * This byte is extracted from the AML via the
 470 * access_as keyword
 471 */
 472typedef enum {
 473        AML_FIELD_ATTRIB_SMB_QUICK = 0x02,
 474        AML_FIELD_ATTRIB_SMB_SEND_RCV = 0x04,
 475        AML_FIELD_ATTRIB_SMB_BYTE = 0x06,
 476        AML_FIELD_ATTRIB_SMB_WORD = 0x08,
 477        AML_FIELD_ATTRIB_SMB_BLOCK = 0x0A,
 478        AML_FIELD_ATTRIB_SMB_WORD_CALL = 0x0C,
 479        AML_FIELD_ATTRIB_SMB_BLOCK_CALL = 0x0D
 480} AML_ACCESS_ATTRIBUTE;
 481
 482/* Bit fields in method_flags byte */
 483
 484#define AML_METHOD_ARG_COUNT        0x07
 485#define AML_METHOD_SERIALIZED       0x08
 486#define AML_METHOD_SYNCH_LEVEL      0xF0
 487
 488/* METHOD_FLAGS_ARG_COUNT is not used internally, define additional flags */
 489
 490#define AML_METHOD_INTERNAL_ONLY    0x01
 491#define AML_METHOD_RESERVED1        0x02
 492#define AML_METHOD_RESERVED2        0x04
 493
 494#endif                          /* __AMLCODE_H__ */
 495