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marcus.erl |
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/******************************************************************************
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*
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* Module Name: exresop - AML Interpreter operand/object resolution
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2007, R. Byron Moore
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <acpi/acpi.h>
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#include <acpi/amlcode.h>
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#include <acpi/acparser.h>
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#include <acpi/acinterp.h>
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#include <acpi/acnamesp.h>
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#define _COMPONENT ACPI_EXECUTER
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ACPI_MODULE_NAME("exresop")
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/* Local prototypes */
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static acpi_status
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acpi_ex_check_object_type(acpi_object_type type_needed,
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acpi_object_type this_type, void *object);
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/*******************************************************************************
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*
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* FUNCTION: acpi_ex_check_object_type
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*
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* PARAMETERS: type_needed Object type needed
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* this_type Actual object type
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* Object Object pointer
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*
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* RETURN: Status
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*
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* DESCRIPTION: Check required type against actual type
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*
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******************************************************************************/
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static acpi_status
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acpi_ex_check_object_type(acpi_object_type type_needed,
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acpi_object_type this_type, void *object)
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{
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ACPI_FUNCTION_ENTRY();
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if (type_needed == ACPI_TYPE_ANY) {
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/* All types OK, so we don't perform any typechecks */
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return (AE_OK);
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}
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if (type_needed == ACPI_TYPE_LOCAL_REFERENCE) {
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/*
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* Allow the AML "Constant" opcodes (Zero, One, etc.) to be reference
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* objects and thus allow them to be targets. (As per the ACPI
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* specification, a store to a constant is a noop.)
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*/
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if ((this_type == ACPI_TYPE_INTEGER) &&
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(((union acpi_operand_object *)object)->common.
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flags & AOPOBJ_AML_CONSTANT)) {
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return (AE_OK);
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}
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}
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if (type_needed != this_type) {
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ACPI_ERROR((AE_INFO,
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"Needed type [%s], found [%s] %p",
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acpi_ut_get_type_name(type_needed),
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acpi_ut_get_type_name(this_type), object));
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return (AE_AML_OPERAND_TYPE);
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}
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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ex_resolve_operands
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*
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* PARAMETERS: Opcode - Opcode being interpreted
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* stack_ptr - Pointer to the operand stack to be
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* resolved
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* walk_state - Current state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Convert multiple input operands to the types required by the
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* target operator.
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*
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* Each 5-bit group in arg_types represents one required
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* operand and indicates the required Type. The corresponding operand
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* will be converted to the required type if possible, otherwise we
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* abort with an exception.
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*
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******************************************************************************/
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acpi_status
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acpi_ex_resolve_operands(u16 opcode,
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union acpi_operand_object ** stack_ptr,
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struct acpi_walk_state * walk_state)
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{
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union acpi_operand_object *obj_desc;
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acpi_status status = AE_OK;
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u8 object_type;
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void *temp_node;
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u32 arg_types;
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const struct acpi_opcode_info *op_info;
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u32 this_arg_type;
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acpi_object_type type_needed;
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u16 target_op = 0;
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ACPI_FUNCTION_TRACE_U32(ex_resolve_operands, opcode);
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op_info = acpi_ps_get_opcode_info(opcode);
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if (op_info->class == AML_CLASS_UNKNOWN) {
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return_ACPI_STATUS(AE_AML_BAD_OPCODE);
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}
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arg_types = op_info->runtime_args;
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if (arg_types == ARGI_INVALID_OPCODE) {
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ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", opcode));
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return_ACPI_STATUS(AE_AML_INTERNAL);
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}
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ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
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"Opcode %X [%s] RequiredOperandTypes=%8.8X\n",
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opcode, op_info->name, arg_types));
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/*
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* Normal exit is with (arg_types == 0) at end of argument list.
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* Function will return an exception from within the loop upon
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* finding an entry which is not (or cannot be converted
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* to) the required type; if stack underflows; or upon
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| 170 |
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* finding a NULL stack entry (which should not happen).
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*/
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while (GET_CURRENT_ARG_TYPE(arg_types)) {
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if (!stack_ptr || !*stack_ptr) {
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ACPI_ERROR((AE_INFO, "Null stack entry at %p",
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stack_ptr));
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return_ACPI_STATUS(AE_AML_INTERNAL);
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}
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/* Extract useful items */
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| 181 |
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obj_desc = *stack_ptr;
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/* Decode the descriptor type */
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switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
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case ACPI_DESC_TYPE_NAMED:
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/* Namespace Node */
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object_type =
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((struct acpi_namespace_node *)obj_desc)->type;
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| 194 |
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/*
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| 195 |
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* Resolve an alias object. The construction of these objects
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* guarantees that there is only one level of alias indirection;
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| 197 |
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* thus, the attached object is always the aliased namespace node
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*/
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if (object_type == ACPI_TYPE_LOCAL_ALIAS) {
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obj_desc =
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| 201 |
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acpi_ns_get_attached_object((struct
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| 202 |
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acpi_namespace_node
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| 203 |
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*)obj_desc);
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| 204 |
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*stack_ptr = obj_desc;
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| 205 |
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object_type =
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| 206 |
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((struct acpi_namespace_node *)obj_desc)->
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| 207 |
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type;
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| 208 |
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}
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| 209 |
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break;
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| 210 |
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| 211 |
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case ACPI_DESC_TYPE_OPERAND:
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| 212 |
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|
| 213 |
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/* ACPI internal object */
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| 214 |
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| 215 |
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object_type = ACPI_GET_OBJECT_TYPE(obj_desc);
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| 216 |
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| 217 |
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/* Check for bad acpi_object_type */
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| 218 |
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| 219 |
|
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if (!acpi_ut_valid_object_type(object_type)) {
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| 220 |
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ACPI_ERROR((AE_INFO,
|
| 221 |
|
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"Bad operand object type [%X]",
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| 222 |
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object_type));
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| 223 |
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|
| 224 |
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return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
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| 225 |
|
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}
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| 226 |
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| 227 |
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if (object_type == (u8) ACPI_TYPE_LOCAL_REFERENCE) {
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| 228 |
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| 229 |
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/* Decode the Reference */
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| 230 |
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| 231 |
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op_info = acpi_ps_get_opcode_info(opcode);
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| 232 |
|
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if (op_info->class == AML_CLASS_UNKNOWN) {
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| 233 |
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return_ACPI_STATUS(AE_AML_BAD_OPCODE);
|
| 234 |
|
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}
|
| 235 |
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|
| 236 |
|
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switch (obj_desc->reference.opcode) {
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| 237 |
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case AML_DEBUG_OP:
|
| 238 |
|
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target_op = AML_DEBUG_OP;
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| 239 |
|
|
|
| 240 |
|
|
/*lint -fallthrough */
|
| 241 |
|
|
|
| 242 |
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case AML_NAME_OP:
|
| 243 |
|
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case AML_INDEX_OP:
|
| 244 |
|
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case AML_REF_OF_OP:
|
| 245 |
|
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case AML_ARG_OP:
|
| 246 |
|
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case AML_LOCAL_OP:
|
| 247 |
|
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case AML_LOAD_OP: /* ddb_handle from LOAD_OP or LOAD_TABLE_OP */
|
| 248 |
|
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case AML_INT_NAMEPATH_OP: /* Reference to a named object */
|
| 249 |
|
|
|
| 250 |
|
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ACPI_DEBUG_ONLY_MEMBERS(ACPI_DEBUG_PRINT
|
| 251 |
|
|
((ACPI_DB_EXEC,
|
| 252 |
|
|
"Operand is a Reference, RefOpcode [%s]\n",
|
| 253 |
|
|
(acpi_ps_get_opcode_info
|
| 254 |
|
|
(obj_desc->
|
| 255 |
|
|
reference.
|
| 256 |
|
|
opcode))->
|
| 257 |
|
|
name)));
|
| 258 |
|
|
break;
|
| 259 |
|
|
|
| 260 |
|
|
default:
|
| 261 |
|
|
ACPI_ERROR((AE_INFO,
|
| 262 |
|
|
"Operand is a Reference, Unknown Reference Opcode: %X",
|
| 263 |
|
|
obj_desc->reference.
|
| 264 |
|
|
opcode));
|
| 265 |
|
|
|
| 266 |
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
| 267 |
|
|
}
|
| 268 |
|
|
}
|
| 269 |
|
|
break;
|
| 270 |
|
|
|
| 271 |
|
|
default:
|
| 272 |
|
|
|
| 273 |
|
|
/* Invalid descriptor */
|
| 274 |
|
|
|
| 275 |
|
|
ACPI_ERROR((AE_INFO,
|
| 276 |
|
|
"Invalid descriptor %p [%s]",
|
| 277 |
|
|
obj_desc,
|
| 278 |
|
|
acpi_ut_get_descriptor_name(obj_desc)));
|
| 279 |
|
|
|
| 280 |
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
| 281 |
|
|
}
|
| 282 |
|
|
|
| 283 |
|
|
/* Get one argument type, point to the next */
|
| 284 |
|
|
|
| 285 |
|
|
this_arg_type = GET_CURRENT_ARG_TYPE(arg_types);
|
| 286 |
|
|
INCREMENT_ARG_LIST(arg_types);
|
| 287 |
|
|
|
| 288 |
|
|
/*
|
| 289 |
|
|
* Handle cases where the object does not need to be
|
| 290 |
|
|
* resolved to a value
|
| 291 |
|
|
*/
|
| 292 |
|
|
switch (this_arg_type) {
|
| 293 |
|
|
case ARGI_REF_OR_STRING: /* Can be a String or Reference */
|
| 294 |
|
|
|
| 295 |
|
|
if ((ACPI_GET_DESCRIPTOR_TYPE(obj_desc) ==
|
| 296 |
|
|
ACPI_DESC_TYPE_OPERAND)
|
| 297 |
|
|
&& (ACPI_GET_OBJECT_TYPE(obj_desc) ==
|
| 298 |
|
|
ACPI_TYPE_STRING)) {
|
| 299 |
|
|
/*
|
| 300 |
|
|
* String found - the string references a named object and
|
| 301 |
|
|
* must be resolved to a node
|
| 302 |
|
|
*/
|
| 303 |
|
|
goto next_operand;
|
| 304 |
|
|
}
|
| 305 |
|
|
|
| 306 |
|
|
/*
|
| 307 |
|
|
* Else not a string - fall through to the normal Reference
|
| 308 |
|
|
* case below
|
| 309 |
|
|
*/
|
| 310 |
|
|
/*lint -fallthrough */
|
| 311 |
|
|
|
| 312 |
|
|
case ARGI_REFERENCE: /* References: */
|
| 313 |
|
|
case ARGI_INTEGER_REF:
|
| 314 |
|
|
case ARGI_OBJECT_REF:
|
| 315 |
|
|
case ARGI_DEVICE_REF:
|
| 316 |
|
|
case ARGI_TARGETREF: /* Allows implicit conversion rules before store */
|
| 317 |
|
|
case ARGI_FIXED_TARGET: /* No implicit conversion before store to target */
|
| 318 |
|
|
case ARGI_SIMPLE_TARGET: /* Name, Local, or Arg - no implicit conversion */
|
| 319 |
|
|
|
| 320 |
|
|
/*
|
| 321 |
|
|
* Need an operand of type ACPI_TYPE_LOCAL_REFERENCE
|
| 322 |
|
|
* A Namespace Node is OK as-is
|
| 323 |
|
|
*/
|
| 324 |
|
|
if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) ==
|
| 325 |
|
|
ACPI_DESC_TYPE_NAMED) {
|
| 326 |
|
|
goto next_operand;
|
| 327 |
|
|
}
|
| 328 |
|
|
|
| 329 |
|
|
status =
|
| 330 |
|
|
acpi_ex_check_object_type(ACPI_TYPE_LOCAL_REFERENCE,
|
| 331 |
|
|
object_type, obj_desc);
|
| 332 |
|
|
if (ACPI_FAILURE(status)) {
|
| 333 |
|
|
return_ACPI_STATUS(status);
|
| 334 |
|
|
}
|
| 335 |
|
|
|
| 336 |
|
|
if (obj_desc->reference.opcode == AML_NAME_OP) {
|
| 337 |
|
|
|
| 338 |
|
|
/* Convert a named reference to the actual named object */
|
| 339 |
|
|
|
| 340 |
|
|
temp_node = obj_desc->reference.object;
|
| 341 |
|
|
acpi_ut_remove_reference(obj_desc);
|
| 342 |
|
|
(*stack_ptr) = temp_node;
|
| 343 |
|
|
}
|
| 344 |
|
|
goto next_operand;
|
| 345 |
|
|
|
| 346 |
|
|
case ARGI_DATAREFOBJ: /* Store operator only */
|
| 347 |
|
|
|
| 348 |
|
|
/*
|
| 349 |
|
|
* We don't want to resolve index_op reference objects during
|
| 350 |
|
|
* a store because this would be an implicit de_ref_of operation.
|
| 351 |
|
|
* Instead, we just want to store the reference object.
|
| 352 |
|
|
* -- All others must be resolved below.
|
| 353 |
|
|
*/
|
| 354 |
|
|
if ((opcode == AML_STORE_OP) &&
|
| 355 |
|
|
(ACPI_GET_OBJECT_TYPE(*stack_ptr) ==
|
| 356 |
|
|
ACPI_TYPE_LOCAL_REFERENCE)
|
| 357 |
|
|
&& ((*stack_ptr)->reference.opcode == AML_INDEX_OP)) {
|
| 358 |
|
|
goto next_operand;
|
| 359 |
|
|
}
|
| 360 |
|
|
break;
|
| 361 |
|
|
|
| 362 |
|
|
default:
|
| 363 |
|
|
/* All cases covered above */
|
| 364 |
|
|
break;
|
| 365 |
|
|
}
|
| 366 |
|
|
|
| 367 |
|
|
/*
|
| 368 |
|
|
* Resolve this object to a value
|
| 369 |
|
|
*/
|
| 370 |
|
|
status = acpi_ex_resolve_to_value(stack_ptr, walk_state);
|
| 371 |
|
|
if (ACPI_FAILURE(status)) {
|
| 372 |
|
|
return_ACPI_STATUS(status);
|
| 373 |
|
|
}
|
| 374 |
|
|
|
| 375 |
|
|
/* Get the resolved object */
|
| 376 |
|
|
|
| 377 |
|
|
obj_desc = *stack_ptr;
|
| 378 |
|
|
|
| 379 |
|
|
/*
|
| 380 |
|
|
* Check the resulting object (value) type
|
| 381 |
|
|
*/
|
| 382 |
|
|
switch (this_arg_type) {
|
| 383 |
|
|
/*
|
| 384 |
|
|
* For the simple cases, only one type of resolved object
|
| 385 |
|
|
* is allowed
|
| 386 |
|
|
*/
|
| 387 |
|
|
case ARGI_MUTEX:
|
| 388 |
|
|
|
| 389 |
|
|
/* Need an operand of type ACPI_TYPE_MUTEX */
|
| 390 |
|
|
|
| 391 |
|
|
type_needed = ACPI_TYPE_MUTEX;
|
| 392 |
|
|
break;
|
| 393 |
|
|
|
| 394 |
|
|
case ARGI_EVENT:
|
| 395 |
|
|
|
| 396 |
|
|
/* Need an operand of type ACPI_TYPE_EVENT */
|
| 397 |
|
|
|
| 398 |
|
|
type_needed = ACPI_TYPE_EVENT;
|
| 399 |
|
|
break;
|
| 400 |
|
|
|
| 401 |
|
|
case ARGI_PACKAGE: /* Package */
|
| 402 |
|
|
|
| 403 |
|
|
/* Need an operand of type ACPI_TYPE_PACKAGE */
|
| 404 |
|
|
|
| 405 |
|
|
type_needed = ACPI_TYPE_PACKAGE;
|
| 406 |
|
|
break;
|
| 407 |
|
|
|
| 408 |
|
|
case ARGI_ANYTYPE:
|
| 409 |
|
|
|
| 410 |
|
|
/* Any operand type will do */
|
| 411 |
|
|
|
| 412 |
|
|
type_needed = ACPI_TYPE_ANY;
|
| 413 |
|
|
break;
|
| 414 |
|
|
|
| 415 |
|
|
case ARGI_DDBHANDLE:
|
| 416 |
|
|
|
| 417 |
|
|
/* Need an operand of type ACPI_TYPE_DDB_HANDLE */
|
| 418 |
|
|
|
| 419 |
|
|
type_needed = ACPI_TYPE_LOCAL_REFERENCE;
|
| 420 |
|
|
break;
|
| 421 |
|
|
|
| 422 |
|
|
/*
|
| 423 |
|
|
* The more complex cases allow multiple resolved object types
|
| 424 |
|
|
*/
|
| 425 |
|
|
case ARGI_INTEGER:
|
| 426 |
|
|
|
| 427 |
|
|
/*
|
| 428 |
|
|
* Need an operand of type ACPI_TYPE_INTEGER,
|
| 429 |
|
|
* But we can implicitly convert from a STRING or BUFFER
|
| 430 |
|
|
* Aka - "Implicit Source Operand Conversion"
|
| 431 |
|
|
*/
|
| 432 |
|
|
status =
|
| 433 |
|
|
acpi_ex_convert_to_integer(obj_desc, stack_ptr, 16);
|
| 434 |
|
|
if (ACPI_FAILURE(status)) {
|
| 435 |
|
|
if (status == AE_TYPE) {
|
| 436 |
|
|
ACPI_ERROR((AE_INFO,
|
| 437 |
|
|
"Needed [Integer/String/Buffer], found [%s] %p",
|
| 438 |
|
|
acpi_ut_get_object_type_name
|
| 439 |
|
|
(obj_desc), obj_desc));
|
| 440 |
|
|
|
| 441 |
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
| 442 |
|
|
}
|
| 443 |
|
|
|
| 444 |
|
|
return_ACPI_STATUS(status);
|
| 445 |
|
|
}
|
| 446 |
|
|
|
| 447 |
|
|
if (obj_desc != *stack_ptr) {
|
| 448 |
|
|
acpi_ut_remove_reference(obj_desc);
|
| 449 |
|
|
}
|
| 450 |
|
|
goto next_operand;
|
| 451 |
|
|
|
| 452 |
|
|
case ARGI_BUFFER:
|
| 453 |
|
|
|
| 454 |
|
|
/*
|
| 455 |
|
|
* Need an operand of type ACPI_TYPE_BUFFER,
|
| 456 |
|
|
* But we can implicitly convert from a STRING or INTEGER
|
| 457 |
|
|
* Aka - "Implicit Source Operand Conversion"
|
| 458 |
|
|
*/
|
| 459 |
|
|
status = acpi_ex_convert_to_buffer(obj_desc, stack_ptr);
|
| 460 |
|
|
if (ACPI_FAILURE(status)) {
|
| 461 |
|
|
if (status == AE_TYPE) {
|
| 462 |
|
|
ACPI_ERROR((AE_INFO,
|
| 463 |
|
|
"Needed [Integer/String/Buffer], found [%s] %p",
|
| 464 |
|
|
acpi_ut_get_object_type_name
|
| 465 |
|
|
(obj_desc), obj_desc));
|
| 466 |
|
|
|
| 467 |
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
| 468 |
|
|
}
|
| 469 |
|
|
|
| 470 |
|
|
return_ACPI_STATUS(status);
|
| 471 |
|
|
}
|
| 472 |
|
|
|
| 473 |
|
|
if (obj_desc != *stack_ptr) {
|
| 474 |
|
|
acpi_ut_remove_reference(obj_desc);
|
| 475 |
|
|
}
|
| 476 |
|
|
goto next_operand;
|
| 477 |
|
|
|
| 478 |
|
|
case ARGI_STRING:
|
| 479 |
|
|
|
| 480 |
|
|
/*
|
| 481 |
|
|
* Need an operand of type ACPI_TYPE_STRING,
|
| 482 |
|
|
* But we can implicitly convert from a BUFFER or INTEGER
|
| 483 |
|
|
* Aka - "Implicit Source Operand Conversion"
|
| 484 |
|
|
*/
|
| 485 |
|
|
status = acpi_ex_convert_to_string(obj_desc, stack_ptr,
|
| 486 |
|
|
ACPI_IMPLICIT_CONVERT_HEX);
|
| 487 |
|
|
if (ACPI_FAILURE(status)) {
|
| 488 |
|
|
if (status == AE_TYPE) {
|
| 489 |
|
|
ACPI_ERROR((AE_INFO,
|
| 490 |
|
|
"Needed [Integer/String/Buffer], found [%s] %p",
|
| 491 |
|
|
acpi_ut_get_object_type_name
|
| 492 |
|
|
(obj_desc), obj_desc));
|
| 493 |
|
|
|
| 494 |
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
| 495 |
|
|
}
|
| 496 |
|
|
|
| 497 |
|
|
return_ACPI_STATUS(status);
|
| 498 |
|
|
}
|
| 499 |
|
|
|
| 500 |
|
|
if (obj_desc != *stack_ptr) {
|
| 501 |
|
|
acpi_ut_remove_reference(obj_desc);
|
| 502 |
|
|
}
|
| 503 |
|
|
goto next_operand;
|
| 504 |
|
|
|
| 505 |
|
|
case ARGI_COMPUTEDATA:
|
| 506 |
|
|
|
| 507 |
|
|
/* Need an operand of type INTEGER, STRING or BUFFER */
|
| 508 |
|
|
|
| 509 |
|
|
switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
|
| 510 |
|
|
case ACPI_TYPE_INTEGER:
|
| 511 |
|
|
case ACPI_TYPE_STRING:
|
| 512 |
|
|
case ACPI_TYPE_BUFFER:
|
| 513 |
|
|
|
| 514 |
|
|
/* Valid operand */
|
| 515 |
|
|
break;
|
| 516 |
|
|
|
| 517 |
|
|
default:
|
| 518 |
|
|
ACPI_ERROR((AE_INFO,
|
| 519 |
|
|
"Needed [Integer/String/Buffer], found [%s] %p",
|
| 520 |
|
|
acpi_ut_get_object_type_name
|
| 521 |
|
|
(obj_desc), obj_desc));
|
| 522 |
|
|
|
| 523 |
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
| 524 |
|
|
}
|
| 525 |
|
|
goto next_operand;
|
| 526 |
|
|
|
| 527 |
|
|
case ARGI_BUFFER_OR_STRING:
|
| 528 |
|
|
|
| 529 |
|
|
/* Need an operand of type STRING or BUFFER */
|
| 530 |
|
|
|
| 531 |
|
|
switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
|
| 532 |
|
|
case ACPI_TYPE_STRING:
|
| 533 |
|
|
case ACPI_TYPE_BUFFER:
|
| 534 |
|
|
|
| 535 |
|
|
/* Valid operand */
|
| 536 |
|
|
break;
|
| 537 |
|
|
|
| 538 |
|
|
case ACPI_TYPE_INTEGER:
|
| 539 |
|
|
|
| 540 |
|
|
/* Highest priority conversion is to type Buffer */
|
| 541 |
|
|
|
| 542 |
|
|
status =
|
| 543 |
|
|
acpi_ex_convert_to_buffer(obj_desc,
|
| 544 |
|
|
stack_ptr);
|
| 545 |
|
|
if (ACPI_FAILURE(status)) {
|
| 546 |
|
|
return_ACPI_STATUS(status);
|
| 547 |
|
|
}
|
| 548 |
|
|
|
| 549 |
|
|
if (obj_desc != *stack_ptr) {
|
| 550 |
|
|
acpi_ut_remove_reference(obj_desc);
|
| 551 |
|
|
}
|
| 552 |
|
|
break;
|
| 553 |
|
|
|
| 554 |
|
|
default:
|
| 555 |
|
|
ACPI_ERROR((AE_INFO,
|
| 556 |
|
|
"Needed [Integer/String/Buffer], found [%s] %p",
|
| 557 |
|
|
acpi_ut_get_object_type_name
|
| 558 |
|
|
(obj_desc), obj_desc));
|
| 559 |
|
|
|
| 560 |
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
| 561 |
|
|
}
|
| 562 |
|
|
goto next_operand;
|
| 563 |
|
|
|
| 564 |
|
|
case ARGI_DATAOBJECT:
|
| 565 |
|
|
/*
|
| 566 |
|
|
* ARGI_DATAOBJECT is only used by the size_of operator.
|
| 567 |
|
|
* Need a buffer, string, package, or ref_of reference.
|
| 568 |
|
|
*
|
| 569 |
|
|
* The only reference allowed here is a direct reference to
|
| 570 |
|
|
* a namespace node.
|
| 571 |
|
|
*/
|
| 572 |
|
|
switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
|
| 573 |
|
|
case ACPI_TYPE_PACKAGE:
|
| 574 |
|
|
case ACPI_TYPE_STRING:
|
| 575 |
|
|
case ACPI_TYPE_BUFFER:
|
| 576 |
|
|
case ACPI_TYPE_LOCAL_REFERENCE:
|
| 577 |
|
|
|
| 578 |
|
|
/* Valid operand */
|
| 579 |
|
|
break;
|
| 580 |
|
|
|
| 581 |
|
|
default:
|
| 582 |
|
|
ACPI_ERROR((AE_INFO,
|
| 583 |
|
|
"Needed [Buffer/String/Package/Reference], found [%s] %p",
|
| 584 |
|
|
acpi_ut_get_object_type_name
|
| 585 |
|
|
(obj_desc), obj_desc));
|
| 586 |
|
|
|
| 587 |
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
| 588 |
|
|
}
|
| 589 |
|
|
goto next_operand;
|
| 590 |
|
|
|
| 591 |
|
|
case ARGI_COMPLEXOBJ:
|
| 592 |
|
|
|
| 593 |
|
|
/* Need a buffer or package or (ACPI 2.0) String */
|
| 594 |
|
|
|
| 595 |
|
|
switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
|
| 596 |
|
|
case ACPI_TYPE_PACKAGE:
|
| 597 |
|
|
case ACPI_TYPE_STRING:
|
| 598 |
|
|
case ACPI_TYPE_BUFFER:
|
| 599 |
|
|
|
| 600 |
|
|
/* Valid operand */
|
| 601 |
|
|
break;
|
| 602 |
|
|
|
| 603 |
|
|
default:
|
| 604 |
|
|
ACPI_ERROR((AE_INFO,
|
| 605 |
|
|
"Needed [Buffer/String/Package], found [%s] %p",
|
| 606 |
|
|
acpi_ut_get_object_type_name
|
| 607 |
|
|
(obj_desc), obj_desc));
|
| 608 |
|
|
|
| 609 |
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
| 610 |
|
|
}
|
| 611 |
|
|
goto next_operand;
|
| 612 |
|
|
|
| 613 |
|
|
case ARGI_REGION_OR_BUFFER: /* Used by Load() only */
|
| 614 |
|
|
|
| 615 |
|
|
/* Need an operand of type REGION or a BUFFER (which could be a resolved region field) */
|
| 616 |
|
|
|
| 617 |
|
|
switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
|
| 618 |
|
|
case ACPI_TYPE_BUFFER:
|
| 619 |
|
|
case ACPI_TYPE_REGION:
|
| 620 |
|
|
|
| 621 |
|
|
/* Valid operand */
|
| 622 |
|
|
break;
|
| 623 |
|
|
|
| 624 |
|
|
default:
|
| 625 |
|
|
ACPI_ERROR((AE_INFO,
|
| 626 |
|
|
"Needed [Region/Buffer], found [%s] %p",
|
| 627 |
|
|
acpi_ut_get_object_type_name
|
| 628 |
|
|
(obj_desc), obj_desc));
|
| 629 |
|
|
|
| 630 |
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
| 631 |
|
|
}
|
| 632 |
|
|
goto next_operand;
|
| 633 |
|
|
|
| 634 |
|
|
case ARGI_DATAREFOBJ:
|
| 635 |
|
|
|
| 636 |
|
|
/* Used by the Store() operator only */
|
| 637 |
|
|
|
| 638 |
|
|
switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
|
| 639 |
|
|
case ACPI_TYPE_INTEGER:
|
| 640 |
|
|
case ACPI_TYPE_PACKAGE:
|
| 641 |
|
|
case ACPI_TYPE_STRING:
|
| 642 |
|
|
case ACPI_TYPE_BUFFER:
|
| 643 |
|
|
case ACPI_TYPE_BUFFER_FIELD:
|
| 644 |
|
|
case ACPI_TYPE_LOCAL_REFERENCE:
|
| 645 |
|
|
case ACPI_TYPE_LOCAL_REGION_FIELD:
|
| 646 |
|
|
case ACPI_TYPE_LOCAL_BANK_FIELD:
|
| 647 |
|
|
case ACPI_TYPE_LOCAL_INDEX_FIELD:
|
| 648 |
|
|
case ACPI_TYPE_DDB_HANDLE:
|
| 649 |
|
|
|
| 650 |
|
|
/* Valid operand */
|
| 651 |
|
|
break;
|
| 652 |
|
|
|
| 653 |
|
|
default:
|
| 654 |
|
|
|
| 655 |
|
|
if (acpi_gbl_enable_interpreter_slack) {
|
| 656 |
|
|
/*
|
| 657 |
|
|
* Enable original behavior of Store(), allowing any and all
|
| 658 |
|
|
* objects as the source operand. The ACPI spec does not
|
| 659 |
|
|
* allow this, however.
|
| 660 |
|
|
*/
|
| 661 |
|
|
break;
|
| 662 |
|
|
}
|
| 663 |
|
|
|
| 664 |
|
|
if (target_op == AML_DEBUG_OP) {
|
| 665 |
|
|
|
| 666 |
|
|
/* Allow store of any object to the Debug object */
|
| 667 |
|
|
|
| 668 |
|
|
break;
|
| 669 |
|
|
}
|
| 670 |
|
|
|
| 671 |
|
|
ACPI_ERROR((AE_INFO,
|
| 672 |
|
|
"Needed Integer/Buffer/String/Package/Ref/Ddb], found [%s] %p",
|
| 673 |
|
|
acpi_ut_get_object_type_name
|
| 674 |
|
|
(obj_desc), obj_desc));
|
| 675 |
|
|
|
| 676 |
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
| 677 |
|
|
}
|
| 678 |
|
|
goto next_operand;
|
| 679 |
|
|
|
| 680 |
|
|
default:
|
| 681 |
|
|
|
| 682 |
|
|
/* Unknown type */
|
| 683 |
|
|
|
| 684 |
|
|
ACPI_ERROR((AE_INFO,
|
| 685 |
|
|
"Internal - Unknown ARGI (required operand) type %X",
|
| 686 |
|
|
this_arg_type));
|
| 687 |
|
|
|
| 688 |
|
|
return_ACPI_STATUS(AE_BAD_PARAMETER);
|
| 689 |
|
|
}
|
| 690 |
|
|
|
| 691 |
|
|
/*
|
| 692 |
|
|
* Make sure that the original object was resolved to the
|
| 693 |
|
|
* required object type (Simple cases only).
|
| 694 |
|
|
*/
|
| 695 |
|
|
status = acpi_ex_check_object_type(type_needed,
|
| 696 |
|
|
ACPI_GET_OBJECT_TYPE
|
| 697 |
|
|
(*stack_ptr), *stack_ptr);
|
| 698 |
|
|
if (ACPI_FAILURE(status)) {
|
| 699 |
|
|
return_ACPI_STATUS(status);
|
| 700 |
|
|
}
|
| 701 |
|
|
|
| 702 |
|
|
next_operand:
|
| 703 |
|
|
/*
|
| 704 |
|
|
* If more operands needed, decrement stack_ptr to point
|
| 705 |
|
|
* to next operand on stack
|
| 706 |
|
|
*/
|
| 707 |
|
|
if (GET_CURRENT_ARG_TYPE(arg_types)) {
|
| 708 |
|
|
stack_ptr--;
|
| 709 |
|
|
}
|
| 710 |
|
|
}
|
| 711 |
|
|
|
| 712 |
|
|
return_ACPI_STATUS(status);
|
| 713 |
|
|
}
|
