linux/drivers/acpi/acpica/exresop.c

// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/******************************************************************************
 *
 * Module Name: exresop - AML Interpreter operand/object resolution
 *
 * Copyright (C) 2000 - 2023, Intel Corp.
 *
 *****************************************************************************/

#include <acpi/acpi.h>
#include "accommon.h"
#include "amlcode.h"
#include "acparser.h"
#include "acinterp.h"
#include "acnamesp.h"

#define _COMPONENT …
ACPI_MODULE_NAME("exresop")

/* Local prototypes */
static acpi_status
acpi_ex_check_object_type(acpi_object_type type_needed,
			  acpi_object_type this_type, void *object);

/*******************************************************************************
 *
 * FUNCTION:    acpi_ex_check_object_type
 *
 * PARAMETERS:  type_needed         Object type needed
 *              this_type           Actual object type
 *              Object              Object pointer
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Check required type against actual type
 *
 ******************************************************************************/

static acpi_status
acpi_ex_check_object_type(acpi_object_type type_needed,
			  acpi_object_type this_type, void *object)
{ … }

/*******************************************************************************
 *
 * FUNCTION:    acpi_ex_resolve_operands
 *
 * PARAMETERS:  opcode              - Opcode being interpreted
 *              stack_ptr           - Pointer to the operand stack to be
 *                                    resolved
 *              walk_state          - Current state
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Convert multiple input operands to the types required by the
 *              target operator.
 *
 *      Each 5-bit group in arg_types represents one required
 *      operand and indicates the required Type. The corresponding operand
 *      will be converted to the required type if possible, otherwise we
 *      abort with an exception.
 *
 ******************************************************************************/

acpi_status
acpi_ex_resolve_operands(u16 opcode,
			 union acpi_operand_object **stack_ptr,
			 struct acpi_walk_state *walk_state)
{ … }