acpi/acpica/amlcode.h

0001 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
0002 /******************************************************************************
0003  *
0004  * Name: amlcode.h - Definitions for AML, as included in "definition blocks"
0005  *                   Declarations and definitions contained herein are derived
0006  *                   directly from the ACPI specification.
0007  *
0008  * Copyright (C) 2000 - 2022, Intel Corp.
0009  *
0010  *****************************************************************************/
0011
0012 #ifndef __AMLCODE_H__
0013 #define __AMLCODE_H__
0014
0015 /* primary opcodes */
0016
0017 #define AML_ZERO_OP                 (u16) 0x00
0018 #define AML_ONE_OP                  (u16) 0x01
0019 #define AML_ALIAS_OP                (u16) 0x06
0020 #define AML_NAME_OP                 (u16) 0x08
0021 #define AML_BYTE_OP                 (u16) 0x0a
0022 #define AML_WORD_OP                 (u16) 0x0b
0023 #define AML_DWORD_OP                (u16) 0x0c
0024 #define AML_STRING_OP               (u16) 0x0d
0025 #define AML_QWORD_OP                (u16) 0x0e  /* ACPI 2.0 */
0026 #define AML_SCOPE_OP                (u16) 0x10
0027 #define AML_BUFFER_OP               (u16) 0x11
0028 #define AML_PACKAGE_OP              (u16) 0x12
0029 #define AML_VARIABLE_PACKAGE_OP     (u16) 0x13  /* ACPI 2.0 */
0030 #define AML_METHOD_OP               (u16) 0x14
0031 #define AML_EXTERNAL_OP             (u16) 0x15  /* ACPI 6.0 */
0032 #define AML_DUAL_NAME_PREFIX        (u16) 0x2e
0033 #define AML_MULTI_NAME_PREFIX       (u16) 0x2f
0034 #define AML_EXTENDED_PREFIX         (u16) 0x5b
0035 #define AML_ROOT_PREFIX             (u16) 0x5c
0036 #define AML_PARENT_PREFIX           (u16) 0x5e
0037 #define AML_FIRST_LOCAL_OP          (u16) 0x60  /* Used for Local op # calculations */
0038 #define AML_LOCAL0                  (u16) 0x60
0039 #define AML_LOCAL1                  (u16) 0x61
0040 #define AML_LOCAL2                  (u16) 0x62
0041 #define AML_LOCAL3                  (u16) 0x63
0042 #define AML_LOCAL4                  (u16) 0x64
0043 #define AML_LOCAL5                  (u16) 0x65
0044 #define AML_LOCAL6                  (u16) 0x66
0045 #define AML_LOCAL7                  (u16) 0x67
0046 #define AML_FIRST_ARG_OP            (u16) 0x68  /* Used for Arg op # calculations */
0047 #define AML_ARG0                    (u16) 0x68
0048 #define AML_ARG1                    (u16) 0x69
0049 #define AML_ARG2                    (u16) 0x6a
0050 #define AML_ARG3                    (u16) 0x6b
0051 #define AML_ARG4                    (u16) 0x6c
0052 #define AML_ARG5                    (u16) 0x6d
0053 #define AML_ARG6                    (u16) 0x6e
0054 #define AML_STORE_OP                (u16) 0x70
0055 #define AML_REF_OF_OP               (u16) 0x71
0056 #define AML_ADD_OP                  (u16) 0x72
0057 #define AML_CONCATENATE_OP          (u16) 0x73
0058 #define AML_SUBTRACT_OP             (u16) 0x74
0059 #define AML_INCREMENT_OP            (u16) 0x75
0060 #define AML_DECREMENT_OP            (u16) 0x76
0061 #define AML_MULTIPLY_OP             (u16) 0x77
0062 #define AML_DIVIDE_OP               (u16) 0x78
0063 #define AML_SHIFT_LEFT_OP           (u16) 0x79
0064 #define AML_SHIFT_RIGHT_OP          (u16) 0x7a
0065 #define AML_BIT_AND_OP              (u16) 0x7b
0066 #define AML_BIT_NAND_OP             (u16) 0x7c
0067 #define AML_BIT_OR_OP               (u16) 0x7d
0068 #define AML_BIT_NOR_OP              (u16) 0x7e
0069 #define AML_BIT_XOR_OP              (u16) 0x7f
0070 #define AML_BIT_NOT_OP              (u16) 0x80
0071 #define AML_FIND_SET_LEFT_BIT_OP    (u16) 0x81
0072 #define AML_FIND_SET_RIGHT_BIT_OP   (u16) 0x82
0073 #define AML_DEREF_OF_OP             (u16) 0x83
0074 #define AML_CONCATENATE_TEMPLATE_OP (u16) 0x84  /* ACPI 2.0 */
0075 #define AML_MOD_OP                  (u16) 0x85  /* ACPI 2.0 */
0076 #define AML_NOTIFY_OP               (u16) 0x86
0077 #define AML_SIZE_OF_OP              (u16) 0x87
0078 #define AML_INDEX_OP                (u16) 0x88
0079 #define AML_MATCH_OP                (u16) 0x89
0080 #define AML_CREATE_DWORD_FIELD_OP   (u16) 0x8a
0081 #define AML_CREATE_WORD_FIELD_OP    (u16) 0x8b
0082 #define AML_CREATE_BYTE_FIELD_OP    (u16) 0x8c
0083 #define AML_CREATE_BIT_FIELD_OP     (u16) 0x8d
0084 #define AML_OBJECT_TYPE_OP          (u16) 0x8e
0085 #define AML_CREATE_QWORD_FIELD_OP   (u16) 0x8f  /* ACPI 2.0 */
0086 #define AML_LOGICAL_AND_OP          (u16) 0x90
0087 #define AML_LOGICAL_OR_OP           (u16) 0x91
0088 #define AML_LOGICAL_NOT_OP          (u16) 0x92
0089 #define AML_LOGICAL_EQUAL_OP        (u16) 0x93
0090 #define AML_LOGICAL_GREATER_OP      (u16) 0x94
0091 #define AML_LOGICAL_LESS_OP         (u16) 0x95
0092 #define AML_TO_BUFFER_OP            (u16) 0x96  /* ACPI 2.0 */
0093 #define AML_TO_DECIMAL_STRING_OP    (u16) 0x97  /* ACPI 2.0 */
0094 #define AML_TO_HEX_STRING_OP        (u16) 0x98  /* ACPI 2.0 */
0095 #define AML_TO_INTEGER_OP           (u16) 0x99  /* ACPI 2.0 */
0096 #define AML_TO_STRING_OP            (u16) 0x9c  /* ACPI 2.0 */
0097 #define AML_COPY_OBJECT_OP          (u16) 0x9d  /* ACPI 2.0 */
0098 #define AML_MID_OP                  (u16) 0x9e  /* ACPI 2.0 */
0099 #define AML_CONTINUE_OP             (u16) 0x9f  /* ACPI 2.0 */
0100 #define AML_IF_OP                   (u16) 0xa0
0101 #define AML_ELSE_OP                 (u16) 0xa1
0102 #define AML_WHILE_OP                (u16) 0xa2
0103 #define AML_NOOP_OP                 (u16) 0xa3
0104 #define AML_RETURN_OP               (u16) 0xa4
0105 #define AML_BREAK_OP                (u16) 0xa5
0106 #define AML_COMMENT_OP              (u16) 0xa9
0107 #define AML_BREAKPOINT_OP          (u16) 0xcc
0108 #define AML_ONES_OP                 (u16) 0xff
0109
0110 /*
0111  * Combination opcodes (actually two one-byte opcodes)
0112  * Used by the disassembler and iASL compiler
0113  */
0114 #define AML_LOGICAL_GREATER_EQUAL_OP (u16) 0x9295   /* LNot (LLess) */
0115 #define AML_LOGICAL_LESS_EQUAL_OP    (u16) 0x9294   /* LNot (LGreater) */
0116 #define AML_LOGICAL_NOT_EQUAL_OP     (u16) 0x9293   /* LNot (LEqual) */
0117
0118 /* Prefixed (2-byte) opcodes (with AML_EXTENDED_PREFIX) */
0119
0120 #define AML_EXTENDED_OPCODE         (u16) 0x5b00    /* Prefix for 2-byte opcodes */
0121
0122 #define AML_MUTEX_OP                (u16) 0x5b01
0123 #define AML_EVENT_OP                (u16) 0x5b02
0124 #define AML_SHIFT_RIGHT_BIT_OP      (u16) 0x5b10    /* Obsolete, not in ACPI spec */
0125 #define AML_SHIFT_LEFT_BIT_OP       (u16) 0x5b11    /* Obsolete, not in ACPI spec */
0126 #define AML_CONDITIONAL_REF_OF_OP   (u16) 0x5b12
0127 #define AML_CREATE_FIELD_OP         (u16) 0x5b13
0128 #define AML_LOAD_TABLE_OP           (u16) 0x5b1f    /* ACPI 2.0 */
0129 #define AML_LOAD_OP                 (u16) 0x5b20
0130 #define AML_STALL_OP                (u16) 0x5b21
0131 #define AML_SLEEP_OP                (u16) 0x5b22
0132 #define AML_ACQUIRE_OP              (u16) 0x5b23
0133 #define AML_SIGNAL_OP               (u16) 0x5b24
0134 #define AML_WAIT_OP                 (u16) 0x5b25
0135 #define AML_RESET_OP                (u16) 0x5b26
0136 #define AML_RELEASE_OP              (u16) 0x5b27
0137 #define AML_FROM_BCD_OP             (u16) 0x5b28
0138 #define AML_TO_BCD_OP               (u16) 0x5b29
0139 #define AML_UNLOAD_OP               (u16) 0x5b2a
0140 #define AML_REVISION_OP             (u16) 0x5b30
0141 #define AML_DEBUG_OP                (u16) 0x5b31
0142 #define AML_FATAL_OP                (u16) 0x5b32
0143 #define AML_TIMER_OP                (u16) 0x5b33    /* ACPI 3.0 */
0144 #define AML_REGION_OP               (u16) 0x5b80
0145 #define AML_FIELD_OP                (u16) 0x5b81
0146 #define AML_DEVICE_OP               (u16) 0x5b82
0147 #define AML_PROCESSOR_OP            (u16) 0x5b83
0148 #define AML_POWER_RESOURCE_OP       (u16) 0x5b84
0149 #define AML_THERMAL_ZONE_OP         (u16) 0x5b85
0150 #define AML_INDEX_FIELD_OP          (u16) 0x5b86
0151 #define AML_BANK_FIELD_OP           (u16) 0x5b87
0152 #define AML_DATA_REGION_OP          (u16) 0x5b88    /* ACPI 2.0 */
0153
0154 /*
0155  * Opcodes for "Field" operators
0156  */
0157 #define AML_FIELD_OFFSET_OP         (u8) 0x00
0158 #define AML_FIELD_ACCESS_OP         (u8) 0x01
0159 #define AML_FIELD_CONNECTION_OP     (u8) 0x02   /* ACPI 5.0 */
0160 #define AML_FIELD_EXT_ACCESS_OP     (u8) 0x03   /* ACPI 5.0 */
0161
0162 /*
0163  * Internal opcodes
0164  * Use only "Unknown" AML opcodes, don't attempt to use
0165  * any valid ACPI ASCII values (A-Z, 0-9, '-')
0166  */
0167 #define AML_INT_NAMEPATH_OP         (u16) 0x002d
0168 #define AML_INT_NAMEDFIELD_OP       (u16) 0x0030
0169 #define AML_INT_RESERVEDFIELD_OP    (u16) 0x0031
0170 #define AML_INT_ACCESSFIELD_OP      (u16) 0x0032
0171 #define AML_INT_BYTELIST_OP         (u16) 0x0033
0172 #define AML_INT_METHODCALL_OP       (u16) 0x0035
0173 #define AML_INT_RETURN_VALUE_OP     (u16) 0x0036
0174 #define AML_INT_EVAL_SUBTREE_OP     (u16) 0x0037
0175 #define AML_INT_CONNECTION_OP       (u16) 0x0038
0176 #define AML_INT_EXTACCESSFIELD_OP   (u16) 0x0039
0177
0178 #define ARG_NONE                    0x0
0179
0180 /*
0181  * Argument types for the AML Parser
0182  * Each field in the arg_types u32 is 5 bits, allowing for a maximum of 6 arguments.
0183  * There can be up to 31 unique argument types
0184  * Zero is reserved as end-of-list indicator
0185  */
0186 #define ARGP_BYTEDATA               0x01
0187 #define ARGP_BYTELIST               0x02
0188 #define ARGP_CHARLIST               0x03
0189 #define ARGP_DATAOBJ                0x04
0190 #define ARGP_DATAOBJLIST            0x05
0191 #define ARGP_DWORDDATA              0x06
0192 #define ARGP_FIELDLIST              0x07
0193 #define ARGP_NAME                   0x08
0194 #define ARGP_NAMESTRING             0x09
0195 #define ARGP_OBJLIST                0x0A
0196 #define ARGP_PKGLENGTH              0x0B
0197 #define ARGP_SUPERNAME              0x0C
0198 #define ARGP_TARGET                 0x0D
0199 #define ARGP_TERMARG                0x0E
0200 #define ARGP_TERMLIST               0x0F
0201 #define ARGP_WORDDATA               0x10
0202 #define ARGP_QWORDDATA              0x11
0203 #define ARGP_SIMPLENAME             0x12    /* name_string | local_term | arg_term */
0204 #define ARGP_NAME_OR_REF            0x13    /* For object_type only */
0205 #define ARGP_MAX                    0x13
0206 #define ARGP_COMMENT                0x14
0207
0208 /*
0209  * Resolved argument types for the AML Interpreter
0210  * Each field in the arg_types u32 is 5 bits, allowing for a maximum of 6 arguments.
0211  * There can be up to 31 unique argument types (0 is end-of-arg-list indicator)
0212  *
0213  * Note1: These values are completely independent from the ACPI_TYPEs
0214  *        i.e., ARGI_INTEGER != ACPI_TYPE_INTEGER
0215  *
0216  * Note2: If and when 5 bits becomes insufficient, it would probably be best
0217  * to convert to a 6-byte array of argument types, allowing 8 bits per argument.
0218  */
0219
0220 /* Single, simple types */
0221
0222 #define ARGI_ANYTYPE                0x01    /* Don't care */
0223 #define ARGI_PACKAGE                0x02
0224 #define ARGI_EVENT                  0x03
0225 #define ARGI_MUTEX                  0x04
0226 #define ARGI_DDBHANDLE              0x05
0227
0228 /* Interchangeable types (via implicit conversion) */
0229
0230 #define ARGI_INTEGER                0x06
0231 #define ARGI_STRING                 0x07
0232 #define ARGI_BUFFER                 0x08
0233 #define ARGI_BUFFER_OR_STRING       0x09    /* Used by MID op only */
0234 #define ARGI_COMPUTEDATA            0x0A    /* Buffer, String, or Integer */
0235
0236 /* Reference objects */
0237
0238 #define ARGI_INTEGER_REF            0x0B
0239 #define ARGI_OBJECT_REF             0x0C
0240 #define ARGI_DEVICE_REF             0x0D
0241 #define ARGI_REFERENCE              0x0E
0242 #define ARGI_TARGETREF              0x0F    /* Target, subject to implicit conversion */
0243 #define ARGI_FIXED_TARGET           0x10    /* Target, no implicit conversion */
0244 #define ARGI_SIMPLE_TARGET          0x11    /* Name, Local, Arg -- no implicit conversion */
0245 #define ARGI_STORE_TARGET           0x12    /* Target for store is TARGETREF + package objects */
0246
0247 /* Multiple/complex types */
0248
0249 #define ARGI_DATAOBJECT             0x13    /* Buffer, String, package or reference to a node - Used only by size_of operator */
0250 #define ARGI_COMPLEXOBJ             0x14    /* Buffer, String, or package (Used by INDEX op only) */
0251 #define ARGI_REF_OR_STRING          0x15    /* Reference or String (Used by DEREFOF op only) */
0252 #define ARGI_REGION_OR_BUFFER       0x16    /* Used by LOAD op only */
0253 #define ARGI_DATAREFOBJ             0x17
0254
0255 /* Note: types above can expand to 0x1F maximum */
0256
0257 #define ARGI_INVALID_OPCODE         0xFFFFFFFF
0258
0259 /*
0260  * Some of the flags and types below are of the form:
0261  *
0262  * AML_FLAGS_EXEC_#A_#T,#R, or
0263  * AML_TYPE_EXEC_#A_#T,#R where:
0264  *
0265  *      #A is the number of required arguments
0266  *      #T is the number of target operands
0267  *      #R indicates whether there is a return value
0268  *
0269  * These types are used for the top-level dispatch of the AML
0270  * opcode. They group similar operators that can share common
0271  * front-end code before dispatch to the final code that implements
0272  * the operator.
0273  */
0274
0275 /*
0276  * Opcode information flags
0277  */
0278 #define AML_LOGICAL                 0x0001
0279 #define AML_LOGICAL_NUMERIC         0x0002
0280 #define AML_MATH                    0x0004
0281 #define AML_CREATE                  0x0008
0282 #define AML_FIELD                   0x0010
0283 #define AML_DEFER                   0x0020
0284 #define AML_NAMED                   0x0040
0285 #define AML_NSNODE                  0x0080
0286 #define AML_NSOPCODE                0x0100
0287 #define AML_NSOBJECT                0x0200
0288 #define AML_HAS_RETVAL              0x0400
0289 #define AML_HAS_TARGET              0x0800
0290 #define AML_HAS_ARGS                0x1000
0291 #define AML_CONSTANT                0x2000
0292 #define AML_NO_OPERAND_RESOLVE      0x4000
0293
0294 /* Convenient flag groupings of the flags above */
0295
0296 #define AML_FLAGS_EXEC_0A_0T_1R                                     AML_HAS_RETVAL
0297 #define AML_FLAGS_EXEC_1A_0T_0R     AML_HAS_ARGS    /* Monadic1  */
0298 #define AML_FLAGS_EXEC_1A_0T_1R     AML_HAS_ARGS |                  AML_HAS_RETVAL  /* Monadic2  */
0299 #define AML_FLAGS_EXEC_1A_1T_0R     AML_HAS_ARGS | AML_HAS_TARGET
0300 #define AML_FLAGS_EXEC_1A_1T_1R     AML_HAS_ARGS | AML_HAS_TARGET | AML_HAS_RETVAL  /* monadic2_r */
0301 #define AML_FLAGS_EXEC_2A_0T_0R     AML_HAS_ARGS    /* Dyadic1   */
0302 #define AML_FLAGS_EXEC_2A_0T_1R     AML_HAS_ARGS |                  AML_HAS_RETVAL  /* Dyadic2   */
0303 #define AML_FLAGS_EXEC_2A_1T_1R     AML_HAS_ARGS | AML_HAS_TARGET | AML_HAS_RETVAL  /* dyadic2_r  */
0304 #define AML_FLAGS_EXEC_2A_2T_1R     AML_HAS_ARGS | AML_HAS_TARGET | AML_HAS_RETVAL
0305 #define AML_FLAGS_EXEC_3A_0T_0R     AML_HAS_ARGS
0306 #define AML_FLAGS_EXEC_3A_1T_1R     AML_HAS_ARGS | AML_HAS_TARGET | AML_HAS_RETVAL
0307 #define AML_FLAGS_EXEC_6A_0T_1R     AML_HAS_ARGS |                  AML_HAS_RETVAL
0308
0309 /*
0310  * The opcode Type is used in a dispatch table, do not change
0311  * or add anything new without updating the table.
0312  */
0313 #define AML_TYPE_EXEC_0A_0T_1R      0x00    /* 0 Args, 0 Target, 1 ret_val */
0314 #define AML_TYPE_EXEC_1A_0T_0R      0x01    /* 1 Args, 0 Target, 0 ret_val */
0315 #define AML_TYPE_EXEC_1A_0T_1R      0x02    /* 1 Args, 0 Target, 1 ret_val */
0316 #define AML_TYPE_EXEC_1A_1T_0R      0x03    /* 1 Args, 1 Target, 0 ret_val */
0317 #define AML_TYPE_EXEC_1A_1T_1R      0x04    /* 1 Args, 1 Target, 1 ret_val */
0318 #define AML_TYPE_EXEC_2A_0T_0R      0x05    /* 2 Args, 0 Target, 0 ret_val */
0319 #define AML_TYPE_EXEC_2A_0T_1R      0x06    /* 2 Args, 0 Target, 1 ret_val */
0320 #define AML_TYPE_EXEC_2A_1T_1R      0x07    /* 2 Args, 1 Target, 1 ret_val */
0321 #define AML_TYPE_EXEC_2A_2T_1R      0x08    /* 2 Args, 2 Target, 1 ret_val */
0322 #define AML_TYPE_EXEC_3A_0T_0R      0x09    /* 3 Args, 0 Target, 0 ret_val */
0323 #define AML_TYPE_EXEC_3A_1T_1R      0x0A    /* 3 Args, 1 Target, 1 ret_val */
0324 #define AML_TYPE_EXEC_6A_0T_1R      0x0B    /* 6 Args, 0 Target, 1 ret_val */
0325 /* End of types used in dispatch table */
0326
0327 #define AML_TYPE_LITERAL            0x0C
0328 #define AML_TYPE_CONSTANT           0x0D
0329 #define AML_TYPE_METHOD_ARGUMENT    0x0E
0330 #define AML_TYPE_LOCAL_VARIABLE     0x0F
0331 #define AML_TYPE_DATA_TERM          0x10
0332
0333 /* Generic for an op that returns a value */
0334
0335 #define AML_TYPE_METHOD_CALL        0x11
0336
0337 /* Miscellaneous types */
0338
0339 #define AML_TYPE_CREATE_FIELD       0x12
0340 #define AML_TYPE_CREATE_OBJECT      0x13
0341 #define AML_TYPE_CONTROL            0x14
0342 #define AML_TYPE_NAMED_NO_OBJ       0x15
0343 #define AML_TYPE_NAMED_FIELD        0x16
0344 #define AML_TYPE_NAMED_SIMPLE       0x17
0345 #define AML_TYPE_NAMED_COMPLEX      0x18
0346 #define AML_TYPE_RETURN             0x19
0347 #define AML_TYPE_UNDEFINED          0x1A
0348 #define AML_TYPE_BOGUS              0x1B
0349
0350 /* AML Package Length encodings */
0351
0352 #define ACPI_AML_PACKAGE_TYPE1      0x40
0353 #define ACPI_AML_PACKAGE_TYPE2      0x4000
0354 #define ACPI_AML_PACKAGE_TYPE3      0x400000
0355 #define ACPI_AML_PACKAGE_TYPE4      0x40000000
0356
0357 /*
0358  * Opcode classes
0359  */
0360 #define AML_CLASS_EXECUTE           0x00
0361 #define AML_CLASS_CREATE            0x01
0362 #define AML_CLASS_ARGUMENT          0x02
0363 #define AML_CLASS_NAMED_OBJECT      0x03
0364 #define AML_CLASS_CONTROL           0x04
0365 #define AML_CLASS_ASCII             0x05
0366 #define AML_CLASS_PREFIX            0x06
0367 #define AML_CLASS_INTERNAL          0x07
0368 #define AML_CLASS_RETURN_VALUE      0x08
0369 #define AML_CLASS_METHOD_CALL       0x09
0370 #define AML_CLASS_UNKNOWN           0x0A
0371
0372 /* Comparison operation codes for match_op operator */
0373
0374 typedef enum {
0375     MATCH_MTR = 0,
0376     MATCH_MEQ = 1,
0377     MATCH_MLE = 2,
0378     MATCH_MLT = 3,
0379     MATCH_MGE = 4,
0380     MATCH_MGT = 5
0381 } AML_MATCH_OPERATOR;
0382
0383 #define MAX_MATCH_OPERATOR          5
0384
0385 /*
0386  * field_flags
0387  *
0388  * This byte is extracted from the AML and includes three separate
0389  * pieces of information about the field:
0390  * 1) The field access type
0391  * 2) The field update rule
0392  * 3) The lock rule for the field
0393  *
0394  * Bits 00 - 03 : access_type (any_acc, byte_acc, etc.)
0395  *      04      : lock_rule (1 == Lock)
0396  *      05 - 06 : update_rule
0397  */
0398 #define AML_FIELD_ACCESS_TYPE_MASK  0x0F
0399 #define AML_FIELD_LOCK_RULE_MASK    0x10
0400 #define AML_FIELD_UPDATE_RULE_MASK  0x60
0401
0402 /* 1) Field Access Types */
0403
0404 typedef enum {
0405     AML_FIELD_ACCESS_ANY = 0x00,
0406     AML_FIELD_ACCESS_BYTE = 0x01,
0407     AML_FIELD_ACCESS_WORD = 0x02,
0408     AML_FIELD_ACCESS_DWORD = 0x03,
0409     AML_FIELD_ACCESS_QWORD = 0x04,  /* ACPI 2.0 */
0410     AML_FIELD_ACCESS_BUFFER = 0x05  /* ACPI 2.0 */
0411 } AML_ACCESS_TYPE;
0412
0413 /* 2) Field Lock Rules */
0414
0415 typedef enum {
0416     AML_FIELD_LOCK_NEVER = 0x00,
0417     AML_FIELD_LOCK_ALWAYS = 0x10
0418 } AML_LOCK_RULE;
0419
0420 /* 3) Field Update Rules */
0421
0422 typedef enum {
0423     AML_FIELD_UPDATE_PRESERVE = 0x00,
0424     AML_FIELD_UPDATE_WRITE_AS_ONES = 0x20,
0425     AML_FIELD_UPDATE_WRITE_AS_ZEROS = 0x40
0426 } AML_UPDATE_RULE;
0427
0428 /*
0429  * Field Access Attributes.
0430  * This byte is extracted from the AML via the
0431  * access_as keyword
0432  */
0433 typedef enum {
0434     AML_FIELD_ATTRIB_QUICK = 0x02,
0435     AML_FIELD_ATTRIB_SEND_RECEIVE = 0x04,
0436     AML_FIELD_ATTRIB_BYTE = 0x06,
0437     AML_FIELD_ATTRIB_WORD = 0x08,
0438     AML_FIELD_ATTRIB_BLOCK = 0x0A,
0439     AML_FIELD_ATTRIB_BYTES = 0x0B,
0440     AML_FIELD_ATTRIB_PROCESS_CALL = 0x0C,
0441     AML_FIELD_ATTRIB_BLOCK_PROCESS_CALL = 0x0D,
0442     AML_FIELD_ATTRIB_RAW_BYTES = 0x0E,
0443     AML_FIELD_ATTRIB_RAW_PROCESS_BYTES = 0x0F
0444 } AML_ACCESS_ATTRIBUTE;
0445
0446 /* Bit fields in the AML method_flags byte */
0447
0448 #define AML_METHOD_ARG_COUNT        0x07
0449 #define AML_METHOD_SERIALIZED       0x08
0450 #define AML_METHOD_SYNC_LEVEL       0xF0
0451
0452 #endif              /* __AMLCODE_H__ */