/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ /****************************************************************************** * * Name: amlcode.h - Definitions for AML, as included in "definition blocks" * Declarations and definitions contained herein are derived * directly from the ACPI specification. * * Copyright (C) 2000 - 2025, Intel Corp. *
*****************************************************************************/
/* * Argument types for the AML Parser * Each field in the arg_types u32 is 5 bits, allowing for a maximum of 6 arguments. * There can be up to 31 unique argument types * Zero is reserved as end-of-list indicator
*/ #define ARGP_BYTEDATA 0x01 #define ARGP_BYTELIST 0x02 #define ARGP_CHARLIST 0x03 #define ARGP_DATAOBJ 0x04 #define ARGP_DATAOBJLIST 0x05 #define ARGP_DWORDDATA 0x06 #define ARGP_FIELDLIST 0x07 #define ARGP_NAME 0x08 #define ARGP_NAMESTRING 0x09 #define ARGP_OBJLIST 0x0A #define ARGP_PKGLENGTH 0x0B #define ARGP_SUPERNAME 0x0C #define ARGP_TARGET 0x0D #define ARGP_TERMARG 0x0E #define ARGP_TERMLIST 0x0F #define ARGP_WORDDATA 0x10 #define ARGP_QWORDDATA 0x11 #define ARGP_SIMPLENAME 0x12 /* name_string | local_term | arg_term */ #define ARGP_NAME_OR_REF 0x13 /* For object_type only */ #define ARGP_MAX 0x13 #define ARGP_COMMENT 0x14
/* * Resolved argument types for the AML Interpreter * Each field in the arg_types u32 is 5 bits, allowing for a maximum of 6 arguments. * There can be up to 31 unique argument types (0 is end-of-arg-list indicator) * * Note1: These values are completely independent from the ACPI_TYPEs * i.e., ARGI_INTEGER != ACPI_TYPE_INTEGER * * Note2: If and when 5 bits becomes insufficient, it would probably be best * to convert to a 6-byte array of argument types, allowing 8 bits per argument.
*/
#define ARGI_INTEGER 0x06 #define ARGI_STRING 0x07 #define ARGI_BUFFER 0x08 #define ARGI_BUFFER_OR_STRING 0x09 /* Used by MID op only */ #define ARGI_COMPUTEDATA 0x0A /* Buffer, String, or Integer */
/* Reference objects */
#define ARGI_INTEGER_REF 0x0B #define ARGI_OBJECT_REF 0x0C #define ARGI_DEVICE_REF 0x0D #define ARGI_REFERENCE 0x0E #define ARGI_TARGETREF 0x0F /* Target, subject to implicit conversion */ #define ARGI_FIXED_TARGET 0x10 /* Target, no implicit conversion */ #define ARGI_SIMPLE_TARGET 0x11 /* Name, Local, Arg -- no implicit conversion */ #define ARGI_STORE_TARGET 0x12 /* Target for store is TARGETREF + package objects */
/* Multiple/complex types */
#define ARGI_DATAOBJECT 0x13 /* Buffer, String, package or reference to a node - Used only by size_of operator */ #define ARGI_COMPLEXOBJ 0x14 /* Buffer, String, or package (Used by INDEX op only) */ #define ARGI_REF_OR_STRING 0x15 /* Reference or String (Used by DEREFOF op only) */ #define ARGI_REGION_OR_BUFFER 0x16 /* Used by LOAD op only */ #define ARGI_DATAREFOBJ 0x17
/* Note: types above can expand to 0x1F maximum */
#define ARGI_INVALID_OPCODE 0xFFFFFFFF
/* * Some of the flags and types below are of the form: * * AML_FLAGS_EXEC_#A_#T,#R, or * AML_TYPE_EXEC_#A_#T,#R where: * * #A is the number of required arguments * #T is the number of target operands * #R indicates whether there is a return value * * These types are used for the top-level dispatch of the AML * opcode. They group similar operators that can share common * front-end code before dispatch to the final code that implements * the operator.
*/
/* * field_flags * * This byte is extracted from the AML and includes three separate * pieces of information about the field: * 1) The field access type * 2) The field update rule * 3) The lock rule for the field * * Bits 00 - 03 : access_type (any_acc, byte_acc, etc.) * 04 : lock_rule (1 == Lock) * 05 - 06 : update_rule
*/ #define AML_FIELD_ACCESS_TYPE_MASK 0x0F #define AML_FIELD_LOCK_RULE_MASK 0x10 #define AML_FIELD_UPDATE_RULE_MASK 0x60
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