acpi/acpica/amlcode.h

1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
4  * Name: amlcode.h - Definitions for AML, as included in "definition blocks"
8  * Copyright (C) 2000 - 2023, Intel Corp.
111  * Combination opcodes (actually two one-byte opcodes)
118 /* Prefixed (2-byte) opcodes (with AML_EXTENDED_PREFIX) */
120 #define AML_EXTENDED_OPCODE         (u16) 0x5b00	/* Prefix for 2-byte opcodes */
165  * any valid ACPI ASCII values (A-Z, 0-9, '-')
182  * Each field in the arg_types u32 is 5 bits, allowing for a maximum of 6 arguments.
184  * Zero is reserved as end-of-list indicator
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)
217  * to convert to a 6-byte array of argument types, allowing 8 bits per argument.
228 /* Interchangeable types (via implicit conversion) */
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 */
249 #define ARGI_DATAOBJECT             0x13	/* Buffer, String, package or reference to a node - Used o…
260  * Some of the flags and types below are of the form:
265  *      #A is the number of required arguments
266  *      #T is the number of target operands
269  * These types are used for the top-level dispatch of the AML
271  * front-end code before dispatch to the final code that implements
294 /* Convenient flag groupings of the flags above */
325 /* End of types used in dispatch table */
389  * pieces of information about the field:
394  * Bits 00 - 03 : access_type (any_acc, byte_acc, etc.)
396  *      05 - 06 : update_rule