drivers/acpi/acpica/amlcode.h

   1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
   2 /******************************************************************************
   3  *
   4  * Name: amlcode.h - Definitions for AML, as included in "definition blocks"
   5  *                   Declarations and definitions contained herein are derived
   6  *                   directly from the ACPI specification.
   7  *
   8  * Copyright (C) 2000 - 2020, Intel Corp.
   9  *
  10  *****************************************************************************/
  11
  12 #ifndef __AMLCODE_H__
  13 #define __AMLCODE_H__
  14
  15 /* primary opcodes */
  16
  17 #define AML_ZERO_OP                 (u16) 0x00
  18 #define AML_ONE_OP                  (u16) 0x01
  19 #define AML_ALIAS_OP                (u16) 0x06
  20 #define AML_NAME_OP                 (u16) 0x08
  21 #define AML_BYTE_OP                 (u16) 0x0a
  22 #define AML_WORD_OP                 (u16) 0x0b
  23 #define AML_DWORD_OP                (u16) 0x0c
  24 #define AML_STRING_OP               (u16) 0x0d
  25 #define AML_QWORD_OP                (u16) 0x0e  /* ACPI 2.0 */
  26 #define AML_SCOPE_OP                (u16) 0x10
  27 #define AML_BUFFER_OP               (u16) 0x11
  28 #define AML_PACKAGE_OP              (u16) 0x12
  29 #define AML_VARIABLE_PACKAGE_OP     (u16) 0x13  /* ACPI 2.0 */
  30 #define AML_METHOD_OP               (u16) 0x14
  31 #define AML_EXTERNAL_OP             (u16) 0x15  /* ACPI 6.0 */
  32 #define AML_DUAL_NAME_PREFIX        (u16) 0x2e
  33 #define AML_MULTI_NAME_PREFIX       (u16) 0x2f
  34 #define AML_EXTENDED_PREFIX         (u16) 0x5b
  35 #define AML_ROOT_PREFIX             (u16) 0x5c
  36 #define AML_PARENT_PREFIX           (u16) 0x5e
  37 #define AML_FIRST_LOCAL_OP          (u16) 0x60  /* Used for Local op # calculations */
  38 #define AML_LOCAL0                  (u16) 0x60
  39 #define AML_LOCAL1                  (u16) 0x61
  40 #define AML_LOCAL2                  (u16) 0x62
  41 #define AML_LOCAL3                  (u16) 0x63
  42 #define AML_LOCAL4                  (u16) 0x64
  43 #define AML_LOCAL5                  (u16) 0x65
  44 #define AML_LOCAL6                  (u16) 0x66
  45 #define AML_LOCAL7                  (u16) 0x67
  46 #define AML_FIRST_ARG_OP            (u16) 0x68  /* Used for Arg op # calculations */
  47 #define AML_ARG0                    (u16) 0x68
  48 #define AML_ARG1                    (u16) 0x69
  49 #define AML_ARG2                    (u16) 0x6a
  50 #define AML_ARG3                    (u16) 0x6b
  51 #define AML_ARG4                    (u16) 0x6c
  52 #define AML_ARG5                    (u16) 0x6d
  53 #define AML_ARG6                    (u16) 0x6e
  54 #define AML_STORE_OP                (u16) 0x70
  55 #define AML_REF_OF_OP               (u16) 0x71
  56 #define AML_ADD_OP                  (u16) 0x72
  57 #define AML_CONCATENATE_OP          (u16) 0x73
  58 #define AML_SUBTRACT_OP             (u16) 0x74
  59 #define AML_INCREMENT_OP            (u16) 0x75
  60 #define AML_DECREMENT_OP            (u16) 0x76
  61 #define AML_MULTIPLY_OP             (u16) 0x77
  62 #define AML_DIVIDE_OP               (u16) 0x78
  63 #define AML_SHIFT_LEFT_OP           (u16) 0x79
  64 #define AML_SHIFT_RIGHT_OP          (u16) 0x7a
  65 #define AML_BIT_AND_OP              (u16) 0x7b
  66 #define AML_BIT_NAND_OP             (u16) 0x7c
  67 #define AML_BIT_OR_OP               (u16) 0x7d
  68 #define AML_BIT_NOR_OP              (u16) 0x7e
  69 #define AML_BIT_XOR_OP              (u16) 0x7f
  70 #define AML_BIT_NOT_OP              (u16) 0x80
  71 #define AML_FIND_SET_LEFT_BIT_OP    (u16) 0x81
  72 #define AML_FIND_SET_RIGHT_BIT_OP   (u16) 0x82
  73 #define AML_DEREF_OF_OP             (u16) 0x83
  74 #define AML_CONCATENATE_TEMPLATE_OP (u16) 0x84  /* ACPI 2.0 */
  75 #define AML_MOD_OP                  (u16) 0x85  /* ACPI 2.0 */
  76 #define AML_NOTIFY_OP               (u16) 0x86
  77 #define AML_SIZE_OF_OP              (u16) 0x87
  78 #define AML_INDEX_OP                (u16) 0x88
  79 #define AML_MATCH_OP                (u16) 0x89
  80 #define AML_CREATE_DWORD_FIELD_OP   (u16) 0x8a
  81 #define AML_CREATE_WORD_FIELD_OP    (u16) 0x8b
  82 #define AML_CREATE_BYTE_FIELD_OP    (u16) 0x8c
  83 #define AML_CREATE_BIT_FIELD_OP     (u16) 0x8d
  84 #define AML_OBJECT_TYPE_OP          (u16) 0x8e
  85 #define AML_CREATE_QWORD_FIELD_OP   (u16) 0x8f  /* ACPI 2.0 */
  86 #define AML_LOGICAL_AND_OP          (u16) 0x90
  87 #define AML_LOGICAL_OR_OP           (u16) 0x91
  88 #define AML_LOGICAL_NOT_OP          (u16) 0x92
  89 #define AML_LOGICAL_EQUAL_OP        (u16) 0x93
  90 #define AML_LOGICAL_GREATER_OP      (u16) 0x94
  91 #define AML_LOGICAL_LESS_OP         (u16) 0x95
  92 #define AML_TO_BUFFER_OP            (u16) 0x96  /* ACPI 2.0 */
  93 #define AML_TO_DECIMAL_STRING_OP    (u16) 0x97  /* ACPI 2.0 */
  94 #define AML_TO_HEX_STRING_OP        (u16) 0x98  /* ACPI 2.0 */
  95 #define AML_TO_INTEGER_OP           (u16) 0x99  /* ACPI 2.0 */
  96 #define AML_TO_STRING_OP            (u16) 0x9c  /* ACPI 2.0 */
  97 #define AML_COPY_OBJECT_OP          (u16) 0x9d  /* ACPI 2.0 */
  98 #define AML_MID_OP                  (u16) 0x9e  /* ACPI 2.0 */
  99 #define AML_CONTINUE_OP             (u16) 0x9f  /* ACPI 2.0 */
 100 #define AML_IF_OP                   (u16) 0xa0
 101 #define AML_ELSE_OP                 (u16) 0xa1
 102 #define AML_WHILE_OP                (u16) 0xa2
 103 #define AML_NOOP_OP                 (u16) 0xa3
 104 #define AML_RETURN_OP               (u16) 0xa4
 105 #define AML_BREAK_OP                (u16) 0xa5
 106 #define AML_COMMENT_OP              (u16) 0xa9
 107 #define AML_BREAKPOINT_OP          (u16) 0xcc
 108 #define AML_ONES_OP                 (u16) 0xff
 109
 110 /*
 111  * Combination opcodes (actually two one-byte opcodes)
 112  * Used by the disassembler and iASL compiler
 113  */
 114 #define AML_LOGICAL_GREATER_EQUAL_OP (u16) 0x9295       /* LNot (LLess) */
 115 #define AML_LOGICAL_LESS_EQUAL_OP    (u16) 0x9294       /* LNot (LGreater) */
 116 #define AML_LOGICAL_NOT_EQUAL_OP     (u16) 0x9293       /* LNot (LEqual) */
 117
 118 /* Prefixed (2-byte) opcodes (with AML_EXTENDED_PREFIX) */
 119
 120 #define AML_EXTENDED_OPCODE         (u16) 0x5b00        /* Prefix for 2-byte opcodes */
 121
 122 #define AML_MUTEX_OP                (u16) 0x5b01
 123 #define AML_EVENT_OP                (u16) 0x5b02
 124 #define AML_SHIFT_RIGHT_BIT_OP      (u16) 0x5b10        /* Obsolete, not in ACPI spec */
 125 #define AML_SHIFT_LEFT_BIT_OP       (u16) 0x5b11        /* Obsolete, not in ACPI spec */
 126 #define AML_CONDITIONAL_REF_OF_OP   (u16) 0x5b12
 127 #define AML_CREATE_FIELD_OP         (u16) 0x5b13
 128 #define AML_LOAD_TABLE_OP           (u16) 0x5b1f        /* ACPI 2.0 */
 129 #define AML_LOAD_OP                 (u16) 0x5b20
 130 #define AML_STALL_OP                (u16) 0x5b21
 131 #define AML_SLEEP_OP                (u16) 0x5b22
 132 #define AML_ACQUIRE_OP              (u16) 0x5b23
 133 #define AML_SIGNAL_OP               (u16) 0x5b24
 134 #define AML_WAIT_OP                 (u16) 0x5b25
 135 #define AML_RESET_OP                (u16) 0x5b26
 136 #define AML_RELEASE_OP              (u16) 0x5b27
 137 #define AML_FROM_BCD_OP             (u16) 0x5b28
 138 #define AML_TO_BCD_OP               (u16) 0x5b29
 139 #define AML_UNLOAD_OP               (u16) 0x5b2a
 140 #define AML_REVISION_OP             (u16) 0x5b30
 141 #define AML_DEBUG_OP                (u16) 0x5b31
 142 #define AML_FATAL_OP                (u16) 0x5b32
 143 #define AML_TIMER_OP                (u16) 0x5b33        /* ACPI 3.0 */
 144 #define AML_REGION_OP               (u16) 0x5b80
 145 #define AML_FIELD_OP                (u16) 0x5b81
 146 #define AML_DEVICE_OP               (u16) 0x5b82
 147 #define AML_PROCESSOR_OP            (u16) 0x5b83
 148 #define AML_POWER_RESOURCE_OP       (u16) 0x5b84
 149 #define AML_THERMAL_ZONE_OP         (u16) 0x5b85
 150 #define AML_INDEX_FIELD_OP          (u16) 0x5b86
 151 #define AML_BANK_FIELD_OP           (u16) 0x5b87
 152 #define AML_DATA_REGION_OP          (u16) 0x5b88        /* ACPI 2.0 */
 153
 154 /*
 155  * Opcodes for "Field" operators
 156  */
 157 #define AML_FIELD_OFFSET_OP         (u8) 0x00
 158 #define AML_FIELD_ACCESS_OP         (u8) 0x01
 159 #define AML_FIELD_CONNECTION_OP     (u8) 0x02   /* ACPI 5.0 */
 160 #define AML_FIELD_EXT_ACCESS_OP     (u8) 0x03   /* ACPI 5.0 */
 161
 162 /*
 163  * Internal opcodes
 164  * Use only "Unknown" AML opcodes, don't attempt to use
 165  * any valid ACPI ASCII values (A-Z, 0-9, '-')
 166  */
 167 #define AML_INT_NAMEPATH_OP         (u16) 0x002d
 168 #define AML_INT_NAMEDFIELD_OP       (u16) 0x0030
 169 #define AML_INT_RESERVEDFIELD_OP    (u16) 0x0031
 170 #define AML_INT_ACCESSFIELD_OP      (u16) 0x0032
 171 #define AML_INT_BYTELIST_OP         (u16) 0x0033
 172 #define AML_INT_METHODCALL_OP       (u16) 0x0035
 173 #define AML_INT_RETURN_VALUE_OP     (u16) 0x0036
 174 #define AML_INT_EVAL_SUBTREE_OP     (u16) 0x0037
 175 #define AML_INT_CONNECTION_OP       (u16) 0x0038
 176 #define AML_INT_EXTACCESSFIELD_OP   (u16) 0x0039
 177
 178 #define ARG_NONE                    0x0
 179
 180 /*
 181  * Argument types for the AML Parser
 182  * Each field in the arg_types u32 is 5 bits, allowing for a maximum of 6 arguments.
 183  * There can be up to 31 unique argument types
 184  * Zero is reserved as end-of-list indicator
 185  */
 186 #define ARGP_BYTEDATA               0x01
 187 #define ARGP_BYTELIST               0x02
 188 #define ARGP_CHARLIST               0x03
 189 #define ARGP_DATAOBJ                0x04
 190 #define ARGP_DATAOBJLIST            0x05
 191 #define ARGP_DWORDDATA              0x06
 192 #define ARGP_FIELDLIST              0x07
 193 #define ARGP_NAME                   0x08
 194 #define ARGP_NAMESTRING             0x09
 195 #define ARGP_OBJLIST                0x0A
 196 #define ARGP_PKGLENGTH              0x0B
 197 #define ARGP_SUPERNAME              0x0C
 198 #define ARGP_TARGET                 0x0D
 199 #define ARGP_TERMARG                0x0E
 200 #define ARGP_TERMLIST               0x0F
 201 #define ARGP_WORDDATA               0x10
 202 #define ARGP_QWORDDATA              0x11
 203 #define ARGP_SIMPLENAME             0x12        /* name_string | local_term | arg_term */
 204 #define ARGP_NAME_OR_REF            0x13        /* For object_type only */
 205 #define ARGP_MAX                    0x13
 206 #define ARGP_COMMENT                0x14
 207
 208 /*
 209  * Resolved argument types for the AML Interpreter
 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 (0 is end-of-arg-list indicator)
 212  *
 213  * Note1: These values are completely independent from the ACPI_TYPEs
 214  *        i.e., ARGI_INTEGER != ACPI_TYPE_INTEGER
 215  *
 216  * Note2: If and when 5 bits becomes insufficient, it would probably be best
 217  * to convert to a 6-byte array of argument types, allowing 8 bits per argument.
 218  */
 219
 220 /* Single, simple types */
 221
 222 #define ARGI_ANYTYPE                0x01        /* Don't care */
 223 #define ARGI_PACKAGE                0x02
 224 #define ARGI_EVENT                  0x03
 225 #define ARGI_MUTEX                  0x04
 226 #define ARGI_DDBHANDLE              0x05
 227
 228 /* Interchangeable types (via implicit conversion) */
 229
 230 #define ARGI_INTEGER                0x06
 231 #define ARGI_STRING                 0x07
 232 #define ARGI_BUFFER                 0x08
 233 #define ARGI_BUFFER_OR_STRING       0x09        /* Used by MID op only */
 234 #define ARGI_COMPUTEDATA            0x0A        /* Buffer, String, or Integer */
 235
 236 /* Reference objects */
 237
 238 #define ARGI_INTEGER_REF            0x0B
 239 #define ARGI_OBJECT_REF             0x0C
 240 #define ARGI_DEVICE_REF             0x0D
 241 #define ARGI_REFERENCE              0x0E
 242 #define ARGI_TARGETREF              0x0F        /* Target, subject to implicit conversion */
 243 #define ARGI_FIXED_TARGET           0x10        /* Target, no implicit conversion */
 244 #define ARGI_SIMPLE_TARGET          0x11        /* Name, Local, Arg -- no implicit conversion */
 245 #define ARGI_STORE_TARGET           0x12        /* Target for store is TARGETREF + package objects */
 246
 247 /* Multiple/complex types */
 248
 249 #define ARGI_DATAOBJECT             0x13        /* Buffer, String, package or reference to a node - Used only by size_of operator */
 250 #define ARGI_COMPLEXOBJ             0x14        /* Buffer, String, or package (Used by INDEX op only) */
 251 #define ARGI_REF_OR_STRING          0x15        /* Reference or String (Used by DEREFOF op only) */
 252 #define ARGI_REGION_OR_BUFFER       0x16        /* Used by LOAD op only */
 253 #define ARGI_DATAREFOBJ             0x17
 254
 255 /* Note: types above can expand to 0x1F maximum */
 256
 257 #define ARGI_INVALID_OPCODE         0xFFFFFFFF
 258
 259 /*
 260  * Some of the flags and types below are of the form:
 261  *
 262  * AML_FLAGS_EXEC_#A_#T,#R, or
 263  * AML_TYPE_EXEC_#A_#T,#R where:
 264  *
 265  *      #A is the number of required arguments
 266  *      #T is the number of target operands
 267  *      #R indicates whether there is a return value
 268  *
 269  * These types are used for the top-level dispatch of the AML
 270  * opcode. They group similar operators that can share common
 271  * front-end code before dispatch to the final code that implements
 272  * the operator.
 273  */
 274
 275 /*
 276  * Opcode information flags
 277  */
 278 #define AML_LOGICAL                 0x0001
 279 #define AML_LOGICAL_NUMERIC         0x0002
 280 #define AML_MATH                    0x0004
 281 #define AML_CREATE                  0x0008
 282 #define AML_FIELD                   0x0010
 283 #define AML_DEFER                   0x0020
 284 #define AML_NAMED                   0x0040
 285 #define AML_NSNODE                  0x0080
 286 #define AML_NSOPCODE                0x0100
 287 #define AML_NSOBJECT                0x0200
 288 #define AML_HAS_RETVAL              0x0400
 289 #define AML_HAS_TARGET              0x0800
 290 #define AML_HAS_ARGS                0x1000
 291 #define AML_CONSTANT                0x2000
 292 #define AML_NO_OPERAND_RESOLVE      0x4000
 293
 294 /* Convenient flag groupings of the flags above */
 295
 296 #define AML_FLAGS_EXEC_0A_0T_1R                                     AML_HAS_RETVAL
 297 #define AML_FLAGS_EXEC_1A_0T_0R     AML_HAS_ARGS        /* Monadic1  */
 298 #define AML_FLAGS_EXEC_1A_0T_1R     AML_HAS_ARGS |                  AML_HAS_RETVAL      /* Monadic2  */
 299 #define AML_FLAGS_EXEC_1A_1T_0R     AML_HAS_ARGS | AML_HAS_TARGET
 300 #define AML_FLAGS_EXEC_1A_1T_1R     AML_HAS_ARGS | AML_HAS_TARGET | AML_HAS_RETVAL      /* monadic2_r */
 301 #define AML_FLAGS_EXEC_2A_0T_0R     AML_HAS_ARGS        /* Dyadic1   */
 302 #define AML_FLAGS_EXEC_2A_0T_1R     AML_HAS_ARGS |                  AML_HAS_RETVAL      /* Dyadic2   */
 303 #define AML_FLAGS_EXEC_2A_1T_1R     AML_HAS_ARGS | AML_HAS_TARGET | AML_HAS_RETVAL      /* dyadic2_r  */
 304 #define AML_FLAGS_EXEC_2A_2T_1R     AML_HAS_ARGS | AML_HAS_TARGET | AML_HAS_RETVAL
 305 #define AML_FLAGS_EXEC_3A_0T_0R     AML_HAS_ARGS
 306 #define AML_FLAGS_EXEC_3A_1T_1R     AML_HAS_ARGS | AML_HAS_TARGET | AML_HAS_RETVAL
 307 #define AML_FLAGS_EXEC_6A_0T_1R     AML_HAS_ARGS |                  AML_HAS_RETVAL
 308
 309 /*
 310  * The opcode Type is used in a dispatch table, do not change
 311  * or add anything new without updating the table.
 312  */
 313 #define AML_TYPE_EXEC_0A_0T_1R      0x00        /* 0 Args, 0 Target, 1 ret_val */
 314 #define AML_TYPE_EXEC_1A_0T_0R      0x01        /* 1 Args, 0 Target, 0 ret_val */
 315 #define AML_TYPE_EXEC_1A_0T_1R      0x02        /* 1 Args, 0 Target, 1 ret_val */
 316 #define AML_TYPE_EXEC_1A_1T_0R      0x03        /* 1 Args, 1 Target, 0 ret_val */
 317 #define AML_TYPE_EXEC_1A_1T_1R      0x04        /* 1 Args, 1 Target, 1 ret_val */
 318 #define AML_TYPE_EXEC_2A_0T_0R      0x05        /* 2 Args, 0 Target, 0 ret_val */
 319 #define AML_TYPE_EXEC_2A_0T_1R      0x06        /* 2 Args, 0 Target, 1 ret_val */
 320 #define AML_TYPE_EXEC_2A_1T_1R      0x07        /* 2 Args, 1 Target, 1 ret_val */
 321 #define AML_TYPE_EXEC_2A_2T_1R      0x08        /* 2 Args, 2 Target, 1 ret_val */
 322 #define AML_TYPE_EXEC_3A_0T_0R      0x09        /* 3 Args, 0 Target, 0 ret_val */
 323 #define AML_TYPE_EXEC_3A_1T_1R      0x0A        /* 3 Args, 1 Target, 1 ret_val */
 324 #define AML_TYPE_EXEC_6A_0T_1R      0x0B        /* 6 Args, 0 Target, 1 ret_val */
 325 /* End of types used in dispatch table */
 326
 327 #define AML_TYPE_LITERAL            0x0C
 328 #define AML_TYPE_CONSTANT           0x0D
 329 #define AML_TYPE_METHOD_ARGUMENT    0x0E
 330 #define AML_TYPE_LOCAL_VARIABLE     0x0F
 331 #define AML_TYPE_DATA_TERM          0x10
 332
 333 /* Generic for an op that returns a value */
 334
 335 #define AML_TYPE_METHOD_CALL        0x11
 336
 337 /* Miscellaneous types */
 338
 339 #define AML_TYPE_CREATE_FIELD       0x12
 340 #define AML_TYPE_CREATE_OBJECT      0x13
 341 #define AML_TYPE_CONTROL            0x14
 342 #define AML_TYPE_NAMED_NO_OBJ       0x15
 343 #define AML_TYPE_NAMED_FIELD        0x16
 344 #define AML_TYPE_NAMED_SIMPLE       0x17
 345 #define AML_TYPE_NAMED_COMPLEX      0x18
 346 #define AML_TYPE_RETURN             0x19
 347 #define AML_TYPE_UNDEFINED          0x1A
 348 #define AML_TYPE_BOGUS              0x1B
 349
 350 /* AML Package Length encodings */
 351
 352 #define ACPI_AML_PACKAGE_TYPE1      0x40
 353 #define ACPI_AML_PACKAGE_TYPE2      0x4000
 354 #define ACPI_AML_PACKAGE_TYPE3      0x400000
 355 #define ACPI_AML_PACKAGE_TYPE4      0x40000000
 356
 357 /*
 358  * Opcode classes
 359  */
 360 #define AML_CLASS_EXECUTE           0x00
 361 #define AML_CLASS_CREATE            0x01
 362 #define AML_CLASS_ARGUMENT          0x02
 363 #define AML_CLASS_NAMED_OBJECT      0x03
 364 #define AML_CLASS_CONTROL           0x04
 365 #define AML_CLASS_ASCII             0x05
 366 #define AML_CLASS_PREFIX            0x06
 367 #define AML_CLASS_INTERNAL          0x07
 368 #define AML_CLASS_RETURN_VALUE      0x08
 369 #define AML_CLASS_METHOD_CALL       0x09
 370 #define AML_CLASS_UNKNOWN           0x0A
 371
 372 /* Comparison operation codes for match_op operator */
 373
 374 typedef enum {
 375         MATCH_MTR = 0,
 376         MATCH_MEQ = 1,
 377         MATCH_MLE = 2,
 378         MATCH_MLT = 3,
 379         MATCH_MGE = 4,
 380         MATCH_MGT = 5
 381 } AML_MATCH_OPERATOR;
 382
 383 #define MAX_MATCH_OPERATOR          5
 384
 385 /*
 386  * field_flags
 387  *
 388  * This byte is extracted from the AML and includes three separate
 389  * pieces of information about the field:
 390  * 1) The field access type
 391  * 2) The field update rule
 392  * 3) The lock rule for the field
 393  *
 394  * Bits 00 - 03 : access_type (any_acc, byte_acc, etc.)
 395  *      04      : lock_rule (1 == Lock)
 396  *      05 - 06 : update_rule
 397  */
 398 #define AML_FIELD_ACCESS_TYPE_MASK  0x0F
 399 #define AML_FIELD_LOCK_RULE_MASK    0x10
 400 #define AML_FIELD_UPDATE_RULE_MASK  0x60
 401
 402 /* 1) Field Access Types */
 403
 404 typedef enum {
 405         AML_FIELD_ACCESS_ANY = 0x00,
 406         AML_FIELD_ACCESS_BYTE = 0x01,
 407         AML_FIELD_ACCESS_WORD = 0x02,
 408         AML_FIELD_ACCESS_DWORD = 0x03,
 409         AML_FIELD_ACCESS_QWORD = 0x04,  /* ACPI 2.0 */
 410         AML_FIELD_ACCESS_BUFFER = 0x05  /* ACPI 2.0 */
 411 } AML_ACCESS_TYPE;
 412
 413 /* 2) Field Lock Rules */
 414
 415 typedef enum {
 416         AML_FIELD_LOCK_NEVER = 0x00,
 417         AML_FIELD_LOCK_ALWAYS = 0x10
 418 } AML_LOCK_RULE;
 419
 420 /* 3) Field Update Rules */
 421
 422 typedef enum {
 423         AML_FIELD_UPDATE_PRESERVE = 0x00,
 424         AML_FIELD_UPDATE_WRITE_AS_ONES = 0x20,
 425         AML_FIELD_UPDATE_WRITE_AS_ZEROS = 0x40
 426 } AML_UPDATE_RULE;
 427
 428 /*
 429  * Field Access Attributes.
 430  * This byte is extracted from the AML via the
 431  * access_as keyword
 432  */
 433 typedef enum {
 434         AML_FIELD_ATTRIB_QUICK = 0x02,
 435         AML_FIELD_ATTRIB_SEND_RECEIVE = 0x04,
 436         AML_FIELD_ATTRIB_BYTE = 0x06,
 437         AML_FIELD_ATTRIB_WORD = 0x08,
 438         AML_FIELD_ATTRIB_BLOCK = 0x0A,
 439         AML_FIELD_ATTRIB_BYTES = 0x0B,
 440         AML_FIELD_ATTRIB_PROCESS_CALL = 0x0C,
 441         AML_FIELD_ATTRIB_BLOCK_PROCESS_CALL = 0x0D,
 442         AML_FIELD_ATTRIB_RAW_BYTES = 0x0E,
 443         AML_FIELD_ATTRIB_RAW_PROCESS_BYTES = 0x0F
 444 } AML_ACCESS_ATTRIBUTE;
 445
 446 /* Bit fields in the AML method_flags byte */
 447
 448 #define AML_METHOD_ARG_COUNT        0x07
 449 #define AML_METHOD_SERIALIZED       0x08
 450 #define AML_METHOD_SYNC_LEVEL       0xF0
 451
 452 #endif                          /* __AMLCODE_H__ */