linux/drivers/acpi/acpica/dswexec.c

// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/******************************************************************************
 *
 * Module Name: dswexec - Dispatcher method execution callbacks;
 *                        dispatch to interpreter.
 *
 * Copyright (C) 2000 - 2023, Intel Corp.
 *
 *****************************************************************************/

#include <acpi/acpi.h>
#include "accommon.h"
#include "acparser.h"
#include "amlcode.h"
#include "acdispat.h"
#include "acinterp.h"
#include "acnamesp.h"
#include "acdebug.h"
#ifdef ACPI_EXEC_APP
#include "aecommon.h"
#endif

#define _COMPONENT …
ACPI_MODULE_NAME("dswexec")

/*
 * Dispatch table for opcode classes
 */
static acpi_execute_op acpi_gbl_op_type_dispatch[] = …;

/*****************************************************************************
 *
 * FUNCTION:    acpi_ds_get_predicate_value
 *
 * PARAMETERS:  walk_state      - Current state of the parse tree walk
 *              result_obj      - if non-zero, pop result from result stack
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Get the result of a predicate evaluation
 *
 ****************************************************************************/

acpi_status
acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state,
			    union acpi_operand_object *result_obj)
{ … }

/*****************************************************************************
 *
 * FUNCTION:    acpi_ds_exec_begin_op
 *
 * PARAMETERS:  walk_state      - Current state of the parse tree walk
 *              out_op          - Where to return op if a new one is created
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Descending callback used during the execution of control
 *              methods. This is where most operators and operands are
 *              dispatched to the interpreter.
 *
 ****************************************************************************/

acpi_status
acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state,
		      union acpi_parse_object **out_op)
{ … }

/*****************************************************************************
 *
 * FUNCTION:    acpi_ds_exec_end_op
 *
 * PARAMETERS:  walk_state      - Current state of the parse tree walk
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Ascending callback used during the execution of control
 *              methods. The only thing we really need to do here is to
 *              notice the beginning of IF, ELSE, and WHILE blocks.
 *
 ****************************************************************************/

acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
{ … }