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marcus.erl |
/******************************************************************************
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*
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* Module Name: psloop - Main AML parse loop
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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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/*
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* Parse the AML and build an operation tree as most interpreters, (such as
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* Perl) do. Parsing is done by hand rather than with a YACC generated parser
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* to tightly constrain stack and dynamic memory usage. Parsing is kept
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* flexible and the code fairly compact by parsing based on a list of AML
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* opcode templates in aml_op_info[].
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*/
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#include <acpi/acpi.h>
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#include <acpi/acparser.h>
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#include <acpi/acdispat.h>
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#include <acpi/amlcode.h>
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#define _COMPONENT ACPI_PARSER
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ACPI_MODULE_NAME("psloop")
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static u32 acpi_gbl_depth = 0;
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/* Local prototypes */
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static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state);
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static acpi_status
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acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
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u8 * aml_op_start,
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union acpi_parse_object *unnamed_op,
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union acpi_parse_object **op);
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static acpi_status
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acpi_ps_create_op(struct acpi_walk_state *walk_state,
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u8 * aml_op_start, union acpi_parse_object **new_op);
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static acpi_status
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acpi_ps_get_arguments(struct acpi_walk_state *walk_state,
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u8 * aml_op_start, union acpi_parse_object *op);
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static acpi_status
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acpi_ps_complete_op(struct acpi_walk_state *walk_state,
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union acpi_parse_object **op, acpi_status status);
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static acpi_status
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acpi_ps_complete_final_op(struct acpi_walk_state *walk_state,
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union acpi_parse_object *op, acpi_status status);
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/*******************************************************************************
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*
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* FUNCTION: acpi_ps_get_aml_opcode
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*
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* PARAMETERS: walk_state - Current state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Extract the next AML opcode from the input stream.
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*
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******************************************************************************/
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static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state)
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{
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ACPI_FUNCTION_TRACE_PTR(ps_get_aml_opcode, walk_state);
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walk_state->aml_offset =
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(u32) ACPI_PTR_DIFF(walk_state->parser_state.aml,
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walk_state->parser_state.aml_start);
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walk_state->opcode = acpi_ps_peek_opcode(&(walk_state->parser_state));
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/*
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* First cut to determine what we have found:
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* 1) A valid AML opcode
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* 2) A name string
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* 3) An unknown/invalid opcode
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*/
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walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode);
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switch (walk_state->op_info->class) {
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case AML_CLASS_ASCII:
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case AML_CLASS_PREFIX:
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/*
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* Starts with a valid prefix or ASCII char, this is a name
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* string. Convert the bare name string to a namepath.
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*/
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walk_state->opcode = AML_INT_NAMEPATH_OP;
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walk_state->arg_types = ARGP_NAMESTRING;
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break;
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case AML_CLASS_UNKNOWN:
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/* The opcode is unrecognized. Just skip unknown opcodes */
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ACPI_ERROR((AE_INFO,
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"Found unknown opcode %X at AML address %p offset %X, ignoring",
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walk_state->opcode, walk_state->parser_state.aml,
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walk_state->aml_offset));
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ACPI_DUMP_BUFFER(walk_state->parser_state.aml, 128);
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/* Assume one-byte bad opcode */
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walk_state->parser_state.aml++;
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return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
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default:
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/* Found opcode info, this is a normal opcode */
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walk_state->parser_state.aml +=
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acpi_ps_get_opcode_size(walk_state->opcode);
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walk_state->arg_types = walk_state->op_info->parse_args;
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break;
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}
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return_ACPI_STATUS(AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ps_build_named_op
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*
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* PARAMETERS: walk_state - Current state
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* aml_op_start - Begin of named Op in AML
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* unnamed_op - Early Op (not a named Op)
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* Op - Returned Op
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*
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* RETURN: Status
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*
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* DESCRIPTION: Parse a named Op
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*
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******************************************************************************/
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static acpi_status
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acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
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u8 * aml_op_start,
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union acpi_parse_object *unnamed_op,
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union acpi_parse_object **op)
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{
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acpi_status status = AE_OK;
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union acpi_parse_object *arg = NULL;
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ACPI_FUNCTION_TRACE_PTR(ps_build_named_op, walk_state);
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unnamed_op->common.value.arg = NULL;
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unnamed_op->common.aml_opcode = walk_state->opcode;
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/*
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* Get and append arguments until we find the node that contains
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* the name (the type ARGP_NAME).
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*/
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while (GET_CURRENT_ARG_TYPE(walk_state->arg_types) &&
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(GET_CURRENT_ARG_TYPE(walk_state->arg_types) != ARGP_NAME)) {
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status =
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acpi_ps_get_next_arg(walk_state,
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&(walk_state->parser_state),
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GET_CURRENT_ARG_TYPE(walk_state->
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arg_types), &arg);
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if (ACPI_FAILURE(status)) {
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return_ACPI_STATUS(status);
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}
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acpi_ps_append_arg(unnamed_op, arg);
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INCREMENT_ARG_LIST(walk_state->arg_types);
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}
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/*
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* Make sure that we found a NAME and didn't run out of arguments
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*/
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if (!GET_CURRENT_ARG_TYPE(walk_state->arg_types)) {
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return_ACPI_STATUS(AE_AML_NO_OPERAND);
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}
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/* We know that this arg is a name, move to next arg */
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INCREMENT_ARG_LIST(walk_state->arg_types);
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/*
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* Find the object. This will either insert the object into
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* the namespace or simply look it up
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*/
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walk_state->op = NULL;
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status = walk_state->descending_callback(walk_state, op);
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if (ACPI_FAILURE(status)) {
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ACPI_EXCEPTION((AE_INFO, status, "During name lookup/catalog"));
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return_ACPI_STATUS(status);
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}
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if (!*op) {
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return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
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}
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status = acpi_ps_next_parse_state(walk_state, *op, status);
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if (ACPI_FAILURE(status)) {
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if (status == AE_CTRL_PENDING) {
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return_ACPI_STATUS(AE_CTRL_PARSE_PENDING);
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}
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return_ACPI_STATUS(status);
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}
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acpi_ps_append_arg(*op, unnamed_op->common.value.arg);
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acpi_gbl_depth++;
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if ((*op)->common.aml_opcode == AML_REGION_OP) {
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/*
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* Defer final parsing of an operation_region body, because we don't
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* have enough info in the first pass to parse it correctly (i.e.,
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* there may be method calls within the term_arg elements of the body.)
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*
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* However, we must continue parsing because the opregion is not a
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* standalone package -- we don't know where the end is at this point.
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*
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* (Length is unknown until parse of the body complete)
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*/
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(*op)->named.data = aml_op_start;
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(*op)->named.length = 0;
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}
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return_ACPI_STATUS(AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ps_create_op
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*
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* PARAMETERS: walk_state - Current state
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* aml_op_start - Op start in AML
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* new_op - Returned Op
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*
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* RETURN: Status
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*
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* DESCRIPTION: Get Op from AML
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*
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******************************************************************************/
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static acpi_status
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acpi_ps_create_op(struct acpi_walk_state *walk_state,
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| 278 |
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u8 * aml_op_start, union acpi_parse_object **new_op)
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{
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acpi_status status = AE_OK;
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| 281 |
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union acpi_parse_object *op;
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union acpi_parse_object *named_op = NULL;
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| 283 |
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ACPI_FUNCTION_TRACE_PTR(ps_create_op, walk_state);
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status = acpi_ps_get_aml_opcode(walk_state);
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if (status == AE_CTRL_PARSE_CONTINUE) {
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return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
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| 289 |
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}
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| 290 |
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| 291 |
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/* Create Op structure and append to parent's argument list */
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| 292 |
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| 293 |
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walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode);
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op = acpi_ps_alloc_op(walk_state->opcode);
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if (!op) {
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| 296 |
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return_ACPI_STATUS(AE_NO_MEMORY);
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| 297 |
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}
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| 298 |
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| 299 |
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if (walk_state->op_info->flags & AML_NAMED) {
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| 300 |
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status =
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| 301 |
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acpi_ps_build_named_op(walk_state, aml_op_start, op,
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&named_op);
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acpi_ps_free_op(op);
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| 304 |
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if (ACPI_FAILURE(status)) {
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| 305 |
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return_ACPI_STATUS(status);
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| 306 |
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}
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| 307 |
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| 308 |
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*new_op = named_op;
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| 309 |
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return_ACPI_STATUS(AE_OK);
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}
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| 311 |
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| 312 |
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/* Not a named opcode, just allocate Op and append to parent */
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| 313 |
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| 314 |
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if (walk_state->op_info->flags & AML_CREATE) {
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/*
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| 316 |
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* Backup to beginning of create_xXXfield declaration
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| 317 |
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* body_length is unknown until we parse the body
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| 318 |
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*/
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| 319 |
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op->named.data = aml_op_start;
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| 320 |
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op->named.length = 0;
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| 321 |
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}
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| 322 |
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| 323 |
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acpi_ps_append_arg(acpi_ps_get_parent_scope
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| 324 |
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(&(walk_state->parser_state)), op);
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| 325 |
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| 326 |
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if (walk_state->descending_callback != NULL) {
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| 327 |
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/*
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| 328 |
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* Find the object. This will either insert the object into
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| 329 |
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* the namespace or simply look it up
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| 330 |
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*/
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| 331 |
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walk_state->op = *new_op = op;
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| 332 |
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| 333 |
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status = walk_state->descending_callback(walk_state, &op);
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status = acpi_ps_next_parse_state(walk_state, op, status);
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| 335 |
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if (status == AE_CTRL_PENDING) {
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| 336 |
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status = AE_CTRL_PARSE_PENDING;
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| 337 |
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}
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| 338 |
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}
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| 339 |
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| 340 |
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return_ACPI_STATUS(status);
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| 341 |
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}
|
| 342 |
|
|
|
| 343 |
|
|
/*******************************************************************************
|
| 344 |
|
|
*
|
| 345 |
|
|
* FUNCTION: acpi_ps_get_arguments
|
| 346 |
|
|
*
|
| 347 |
|
|
* PARAMETERS: walk_state - Current state
|
| 348 |
|
|
* aml_op_start - Op start in AML
|
| 349 |
|
|
* Op - Current Op
|
| 350 |
|
|
*
|
| 351 |
|
|
* RETURN: Status
|
| 352 |
|
|
*
|
| 353 |
|
|
* DESCRIPTION: Get arguments for passed Op.
|
| 354 |
|
|
*
|
| 355 |
|
|
******************************************************************************/
|
| 356 |
|
|
|
| 357 |
|
|
static acpi_status
|
| 358 |
|
|
acpi_ps_get_arguments(struct acpi_walk_state *walk_state,
|
| 359 |
|
|
u8 * aml_op_start, union acpi_parse_object *op)
|
| 360 |
|
|
{
|
| 361 |
|
|
acpi_status status = AE_OK;
|
| 362 |
|
|
union acpi_parse_object *arg = NULL;
|
| 363 |
|
|
|
| 364 |
|
|
ACPI_FUNCTION_TRACE_PTR(ps_get_arguments, walk_state);
|
| 365 |
|
|
|
| 366 |
|
|
switch (op->common.aml_opcode) {
|
| 367 |
|
|
case AML_BYTE_OP: /* AML_BYTEDATA_ARG */
|
| 368 |
|
|
case AML_WORD_OP: /* AML_WORDDATA_ARG */
|
| 369 |
|
|
case AML_DWORD_OP: /* AML_DWORDATA_ARG */
|
| 370 |
|
|
case AML_QWORD_OP: /* AML_QWORDATA_ARG */
|
| 371 |
|
|
case AML_STRING_OP: /* AML_ASCIICHARLIST_ARG */
|
| 372 |
|
|
|
| 373 |
|
|
/* Fill in constant or string argument directly */
|
| 374 |
|
|
|
| 375 |
|
|
acpi_ps_get_next_simple_arg(&(walk_state->parser_state),
|
| 376 |
|
|
GET_CURRENT_ARG_TYPE(walk_state->
|
| 377 |
|
|
arg_types),
|
| 378 |
|
|
op);
|
| 379 |
|
|
break;
|
| 380 |
|
|
|
| 381 |
|
|
case AML_INT_NAMEPATH_OP: /* AML_NAMESTRING_ARG */
|
| 382 |
|
|
|
| 383 |
|
|
status =
|
| 384 |
|
|
acpi_ps_get_next_namepath(walk_state,
|
| 385 |
|
|
&(walk_state->parser_state), op,
|
| 386 |
|
|
1);
|
| 387 |
|
|
if (ACPI_FAILURE(status)) {
|
| 388 |
|
|
return_ACPI_STATUS(status);
|
| 389 |
|
|
}
|
| 390 |
|
|
|
| 391 |
|
|
walk_state->arg_types = 0;
|
| 392 |
|
|
break;
|
| 393 |
|
|
|
| 394 |
|
|
default:
|
| 395 |
|
|
/*
|
| 396 |
|
|
* Op is not a constant or string, append each argument to the Op
|
| 397 |
|
|
*/
|
| 398 |
|
|
while (GET_CURRENT_ARG_TYPE(walk_state->arg_types)
|
| 399 |
|
|
&& !walk_state->arg_count) {
|
| 400 |
|
|
walk_state->aml_offset =
|
| 401 |
|
|
(u32) ACPI_PTR_DIFF(walk_state->parser_state.aml,
|
| 402 |
|
|
walk_state->parser_state.
|
| 403 |
|
|
aml_start);
|
| 404 |
|
|
|
| 405 |
|
|
status =
|
| 406 |
|
|
acpi_ps_get_next_arg(walk_state,
|
| 407 |
|
|
&(walk_state->parser_state),
|
| 408 |
|
|
GET_CURRENT_ARG_TYPE
|
| 409 |
|
|
(walk_state->arg_types), &arg);
|
| 410 |
|
|
if (ACPI_FAILURE(status)) {
|
| 411 |
|
|
return_ACPI_STATUS(status);
|
| 412 |
|
|
}
|
| 413 |
|
|
|
| 414 |
|
|
if (arg) {
|
| 415 |
|
|
arg->common.aml_offset = walk_state->aml_offset;
|
| 416 |
|
|
acpi_ps_append_arg(op, arg);
|
| 417 |
|
|
}
|
| 418 |
|
|
|
| 419 |
|
|
INCREMENT_ARG_LIST(walk_state->arg_types);
|
| 420 |
|
|
}
|
| 421 |
|
|
|
| 422 |
|
|
/* Special processing for certain opcodes */
|
| 423 |
|
|
|
| 424 |
|
|
/* TBD (remove): Temporary mechanism to disable this code if needed */
|
| 425 |
|
|
|
| 426 |
|
|
#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
|
| 427 |
|
|
|
| 428 |
|
|
if ((walk_state->pass_number <= ACPI_IMODE_LOAD_PASS1) &&
|
| 429 |
|
|
((walk_state->parse_flags & ACPI_PARSE_DISASSEMBLE) == 0)) {
|
| 430 |
|
|
/*
|
| 431 |
|
|
* We want to skip If/Else/While constructs during Pass1 because we
|
| 432 |
|
|
* want to actually conditionally execute the code during Pass2.
|
| 433 |
|
|
*
|
| 434 |
|
|
* Except for disassembly, where we always want to walk the
|
| 435 |
|
|
* If/Else/While packages
|
| 436 |
|
|
*/
|
| 437 |
|
|
switch (op->common.aml_opcode) {
|
| 438 |
|
|
case AML_IF_OP:
|
| 439 |
|
|
case AML_ELSE_OP:
|
| 440 |
|
|
case AML_WHILE_OP:
|
| 441 |
|
|
|
| 442 |
|
|
ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
|
| 443 |
|
|
"Pass1: Skipping an If/Else/While body\n"));
|
| 444 |
|
|
|
| 445 |
|
|
/* Skip body of if/else/while in pass 1 */
|
| 446 |
|
|
|
| 447 |
|
|
walk_state->parser_state.aml =
|
| 448 |
|
|
walk_state->parser_state.pkg_end;
|
| 449 |
|
|
walk_state->arg_count = 0;
|
| 450 |
|
|
break;
|
| 451 |
|
|
|
| 452 |
|
|
default:
|
| 453 |
|
|
break;
|
| 454 |
|
|
}
|
| 455 |
|
|
}
|
| 456 |
|
|
#endif
|
| 457 |
|
|
|
| 458 |
|
|
switch (op->common.aml_opcode) {
|
| 459 |
|
|
case AML_METHOD_OP:
|
| 460 |
|
|
/*
|
| 461 |
|
|
* Skip parsing of control method because we don't have enough
|
| 462 |
|
|
* info in the first pass to parse it correctly.
|
| 463 |
|
|
*
|
| 464 |
|
|
* Save the length and address of the body
|
| 465 |
|
|
*/
|
| 466 |
|
|
op->named.data = walk_state->parser_state.aml;
|
| 467 |
|
|
op->named.length = (u32)
|
| 468 |
|
|
(walk_state->parser_state.pkg_end -
|
| 469 |
|
|
walk_state->parser_state.aml);
|
| 470 |
|
|
|
| 471 |
|
|
/* Skip body of method */
|
| 472 |
|
|
|
| 473 |
|
|
walk_state->parser_state.aml =
|
| 474 |
|
|
walk_state->parser_state.pkg_end;
|
| 475 |
|
|
walk_state->arg_count = 0;
|
| 476 |
|
|
break;
|
| 477 |
|
|
|
| 478 |
|
|
case AML_BUFFER_OP:
|
| 479 |
|
|
case AML_PACKAGE_OP:
|
| 480 |
|
|
case AML_VAR_PACKAGE_OP:
|
| 481 |
|
|
|
| 482 |
|
|
if ((op->common.parent) &&
|
| 483 |
|
|
(op->common.parent->common.aml_opcode ==
|
| 484 |
|
|
AML_NAME_OP)
|
| 485 |
|
|
&& (walk_state->pass_number <=
|
| 486 |
|
|
ACPI_IMODE_LOAD_PASS2)) {
|
| 487 |
|
|
/*
|
| 488 |
|
|
* Skip parsing of Buffers and Packages because we don't have
|
| 489 |
|
|
* enough info in the first pass to parse them correctly.
|
| 490 |
|
|
*/
|
| 491 |
|
|
op->named.data = aml_op_start;
|
| 492 |
|
|
op->named.length = (u32)
|
| 493 |
|
|
(walk_state->parser_state.pkg_end -
|
| 494 |
|
|
aml_op_start);
|
| 495 |
|
|
|
| 496 |
|
|
/* Skip body */
|
| 497 |
|
|
|
| 498 |
|
|
walk_state->parser_state.aml =
|
| 499 |
|
|
walk_state->parser_state.pkg_end;
|
| 500 |
|
|
walk_state->arg_count = 0;
|
| 501 |
|
|
}
|
| 502 |
|
|
break;
|
| 503 |
|
|
|
| 504 |
|
|
case AML_WHILE_OP:
|
| 505 |
|
|
|
| 506 |
|
|
if (walk_state->control_state) {
|
| 507 |
|
|
walk_state->control_state->control.package_end =
|
| 508 |
|
|
walk_state->parser_state.pkg_end;
|
| 509 |
|
|
}
|
| 510 |
|
|
break;
|
| 511 |
|
|
|
| 512 |
|
|
default:
|
| 513 |
|
|
|
| 514 |
|
|
/* No action for all other opcodes */
|
| 515 |
|
|
break;
|
| 516 |
|
|
}
|
| 517 |
|
|
|
| 518 |
|
|
break;
|
| 519 |
|
|
}
|
| 520 |
|
|
|
| 521 |
|
|
return_ACPI_STATUS(AE_OK);
|
| 522 |
|
|
}
|
| 523 |
|
|
|
| 524 |
|
|
/*******************************************************************************
|
| 525 |
|
|
*
|
| 526 |
|
|
* FUNCTION: acpi_ps_complete_op
|
| 527 |
|
|
*
|
| 528 |
|
|
* PARAMETERS: walk_state - Current state
|
| 529 |
|
|
* Op - Returned Op
|
| 530 |
|
|
* Status - Parse status before complete Op
|
| 531 |
|
|
*
|
| 532 |
|
|
* RETURN: Status
|
| 533 |
|
|
*
|
| 534 |
|
|
* DESCRIPTION: Complete Op
|
| 535 |
|
|
*
|
| 536 |
|
|
******************************************************************************/
|
| 537 |
|
|
|
| 538 |
|
|
static acpi_status
|
| 539 |
|
|
acpi_ps_complete_op(struct acpi_walk_state *walk_state,
|
| 540 |
|
|
union acpi_parse_object **op, acpi_status status)
|
| 541 |
|
|
{
|
| 542 |
|
|
acpi_status status2;
|
| 543 |
|
|
|
| 544 |
|
|
ACPI_FUNCTION_TRACE_PTR(ps_complete_op, walk_state);
|
| 545 |
|
|
|
| 546 |
|
|
/*
|
| 547 |
|
|
* Finished one argument of the containing scope
|
| 548 |
|
|
*/
|
| 549 |
|
|
walk_state->parser_state.scope->parse_scope.arg_count--;
|
| 550 |
|
|
|
| 551 |
|
|
/* Close this Op (will result in parse subtree deletion) */
|
| 552 |
|
|
|
| 553 |
|
|
status2 = acpi_ps_complete_this_op(walk_state, *op);
|
| 554 |
|
|
if (ACPI_FAILURE(status2)) {
|
| 555 |
|
|
return_ACPI_STATUS(status2);
|
| 556 |
|
|
}
|
| 557 |
|
|
|
| 558 |
|
|
*op = NULL;
|
| 559 |
|
|
|
| 560 |
|
|
switch (status) {
|
| 561 |
|
|
case AE_OK:
|
| 562 |
|
|
break;
|
| 563 |
|
|
|
| 564 |
|
|
case AE_CTRL_TRANSFER:
|
| 565 |
|
|
|
| 566 |
|
|
/* We are about to transfer to a called method */
|
| 567 |
|
|
|
| 568 |
|
|
walk_state->prev_op = NULL;
|
| 569 |
|
|
walk_state->prev_arg_types = walk_state->arg_types;
|
| 570 |
|
|
return_ACPI_STATUS(status);
|
| 571 |
|
|
|
| 572 |
|
|
case AE_CTRL_END:
|
| 573 |
|
|
|
| 574 |
|
|
acpi_ps_pop_scope(&(walk_state->parser_state), op,
|
| 575 |
|
|
&walk_state->arg_types,
|
| 576 |
|
|
&walk_state->arg_count);
|
| 577 |
|
|
|
| 578 |
|
|
if (*op) {
|
| 579 |
|
|
walk_state->op = *op;
|
| 580 |
|
|
walk_state->op_info =
|
| 581 |
|
|
acpi_ps_get_opcode_info((*op)->common.aml_opcode);
|
| 582 |
|
|
walk_state->opcode = (*op)->common.aml_opcode;
|
| 583 |
|
|
|
| 584 |
|
|
status = walk_state->ascending_callback(walk_state);
|
| 585 |
|
|
status =
|
| 586 |
|
|
acpi_ps_next_parse_state(walk_state, *op, status);
|
| 587 |
|
|
|
| 588 |
|
|
status2 = acpi_ps_complete_this_op(walk_state, *op);
|
| 589 |
|
|
if (ACPI_FAILURE(status2)) {
|
| 590 |
|
|
return_ACPI_STATUS(status2);
|
| 591 |
|
|
}
|
| 592 |
|
|
}
|
| 593 |
|
|
|
| 594 |
|
|
status = AE_OK;
|
| 595 |
|
|
break;
|
| 596 |
|
|
|
| 597 |
|
|
case AE_CTRL_BREAK:
|
| 598 |
|
|
case AE_CTRL_CONTINUE:
|
| 599 |
|
|
|
| 600 |
|
|
/* Pop off scopes until we find the While */
|
| 601 |
|
|
|
| 602 |
|
|
while (!(*op) || ((*op)->common.aml_opcode != AML_WHILE_OP)) {
|
| 603 |
|
|
acpi_ps_pop_scope(&(walk_state->parser_state), op,
|
| 604 |
|
|
&walk_state->arg_types,
|
| 605 |
|
|
&walk_state->arg_count);
|
| 606 |
|
|
|
| 607 |
|
|
if ((*op)->common.aml_opcode != AML_WHILE_OP) {
|
| 608 |
|
|
status2 = acpi_ds_result_stack_pop(walk_state);
|
| 609 |
|
|
if (ACPI_FAILURE(status2)) {
|
| 610 |
|
|
return_ACPI_STATUS(status2);
|
| 611 |
|
|
}
|
| 612 |
|
|
}
|
| 613 |
|
|
}
|
| 614 |
|
|
|
| 615 |
|
|
/* Close this iteration of the While loop */
|
| 616 |
|
|
|
| 617 |
|
|
walk_state->op = *op;
|
| 618 |
|
|
walk_state->op_info =
|
| 619 |
|
|
acpi_ps_get_opcode_info((*op)->common.aml_opcode);
|
| 620 |
|
|
walk_state->opcode = (*op)->common.aml_opcode;
|
| 621 |
|
|
|
| 622 |
|
|
status = walk_state->ascending_callback(walk_state);
|
| 623 |
|
|
status = acpi_ps_next_parse_state(walk_state, *op, status);
|
| 624 |
|
|
|
| 625 |
|
|
status2 = acpi_ps_complete_this_op(walk_state, *op);
|
| 626 |
|
|
if (ACPI_FAILURE(status2)) {
|
| 627 |
|
|
return_ACPI_STATUS(status2);
|
| 628 |
|
|
}
|
| 629 |
|
|
|
| 630 |
|
|
status = AE_OK;
|
| 631 |
|
|
break;
|
| 632 |
|
|
|
| 633 |
|
|
case AE_CTRL_TERMINATE:
|
| 634 |
|
|
|
| 635 |
|
|
/* Clean up */
|
| 636 |
|
|
do {
|
| 637 |
|
|
if (*op) {
|
| 638 |
|
|
status2 =
|
| 639 |
|
|
acpi_ps_complete_this_op(walk_state, *op);
|
| 640 |
|
|
if (ACPI_FAILURE(status2)) {
|
| 641 |
|
|
return_ACPI_STATUS(status2);
|
| 642 |
|
|
}
|
| 643 |
|
|
status2 = acpi_ds_result_stack_pop(walk_state);
|
| 644 |
|
|
if (ACPI_FAILURE(status2)) {
|
| 645 |
|
|
return_ACPI_STATUS(status2);
|
| 646 |
|
|
}
|
| 647 |
|
|
|
| 648 |
|
|
acpi_ut_delete_generic_state
|
| 649 |
|
|
(acpi_ut_pop_generic_state
|
| 650 |
|
|
(&walk_state->control_state));
|
| 651 |
|
|
}
|
| 652 |
|
|
|
| 653 |
|
|
acpi_ps_pop_scope(&(walk_state->parser_state), op,
|
| 654 |
|
|
&walk_state->arg_types,
|
| 655 |
|
|
&walk_state->arg_count);
|
| 656 |
|
|
|
| 657 |
|
|
} while (*op);
|
| 658 |
|
|
|
| 659 |
|
|
return_ACPI_STATUS(AE_OK);
|
| 660 |
|
|
|
| 661 |
|
|
default: /* All other non-AE_OK status */
|
| 662 |
|
|
|
| 663 |
|
|
do {
|
| 664 |
|
|
if (*op) {
|
| 665 |
|
|
status2 =
|
| 666 |
|
|
acpi_ps_complete_this_op(walk_state, *op);
|
| 667 |
|
|
if (ACPI_FAILURE(status2)) {
|
| 668 |
|
|
return_ACPI_STATUS(status2);
|
| 669 |
|
|
}
|
| 670 |
|
|
}
|
| 671 |
|
|
|
| 672 |
|
|
acpi_ps_pop_scope(&(walk_state->parser_state), op,
|
| 673 |
|
|
&walk_state->arg_types,
|
| 674 |
|
|
&walk_state->arg_count);
|
| 675 |
|
|
|
| 676 |
|
|
} while (*op);
|
| 677 |
|
|
|
| 678 |
|
|
#if 0
|
| 679 |
|
|
/*
|
| 680 |
|
|
* TBD: Cleanup parse ops on error
|
| 681 |
|
|
*/
|
| 682 |
|
|
if (*op == NULL) {
|
| 683 |
|
|
acpi_ps_pop_scope(parser_state, op,
|
| 684 |
|
|
&walk_state->arg_types,
|
| 685 |
|
|
&walk_state->arg_count);
|
| 686 |
|
|
}
|
| 687 |
|
|
#endif
|
| 688 |
|
|
walk_state->prev_op = NULL;
|
| 689 |
|
|
walk_state->prev_arg_types = walk_state->arg_types;
|
| 690 |
|
|
return_ACPI_STATUS(status);
|
| 691 |
|
|
}
|
| 692 |
|
|
|
| 693 |
|
|
/* This scope complete? */
|
| 694 |
|
|
|
| 695 |
|
|
if (acpi_ps_has_completed_scope(&(walk_state->parser_state))) {
|
| 696 |
|
|
acpi_ps_pop_scope(&(walk_state->parser_state), op,
|
| 697 |
|
|
&walk_state->arg_types,
|
| 698 |
|
|
&walk_state->arg_count);
|
| 699 |
|
|
ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Popped scope, Op=%p\n", *op));
|
| 700 |
|
|
} else {
|
| 701 |
|
|
*op = NULL;
|
| 702 |
|
|
}
|
| 703 |
|
|
|
| 704 |
|
|
return_ACPI_STATUS(AE_OK);
|
| 705 |
|
|
}
|
| 706 |
|
|
|
| 707 |
|
|
/*******************************************************************************
|
| 708 |
|
|
*
|
| 709 |
|
|
* FUNCTION: acpi_ps_complete_final_op
|
| 710 |
|
|
*
|
| 711 |
|
|
* PARAMETERS: walk_state - Current state
|
| 712 |
|
|
* Op - Current Op
|
| 713 |
|
|
* Status - Current parse status before complete last
|
| 714 |
|
|
* Op
|
| 715 |
|
|
*
|
| 716 |
|
|
* RETURN: Status
|
| 717 |
|
|
*
|
| 718 |
|
|
* DESCRIPTION: Complete last Op.
|
| 719 |
|
|
*
|
| 720 |
|
|
******************************************************************************/
|
| 721 |
|
|
|
| 722 |
|
|
static acpi_status
|
| 723 |
|
|
acpi_ps_complete_final_op(struct acpi_walk_state *walk_state,
|
| 724 |
|
|
union acpi_parse_object *op, acpi_status status)
|
| 725 |
|
|
{
|
| 726 |
|
|
acpi_status status2;
|
| 727 |
|
|
|
| 728 |
|
|
ACPI_FUNCTION_TRACE_PTR(ps_complete_final_op, walk_state);
|
| 729 |
|
|
|
| 730 |
|
|
/*
|
| 731 |
|
|
* Complete the last Op (if not completed), and clear the scope stack.
|
| 732 |
|
|
* It is easily possible to end an AML "package" with an unbounded number
|
| 733 |
|
|
* of open scopes (such as when several ASL blocks are closed with
|
| 734 |
|
|
* sequential closing braces). We want to terminate each one cleanly.
|
| 735 |
|
|
*/
|
| 736 |
|
|
ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "AML package complete at Op %p\n",
|
| 737 |
|
|
op));
|
| 738 |
|
|
do {
|
| 739 |
|
|
if (op) {
|
| 740 |
|
|
if (walk_state->ascending_callback != NULL) {
|
| 741 |
|
|
walk_state->op = op;
|
| 742 |
|
|
walk_state->op_info =
|
| 743 |
|
|
acpi_ps_get_opcode_info(op->common.
|
| 744 |
|
|
aml_opcode);
|
| 745 |
|
|
walk_state->opcode = op->common.aml_opcode;
|
| 746 |
|
|
|
| 747 |
|
|
status =
|
| 748 |
|
|
walk_state->ascending_callback(walk_state);
|
| 749 |
|
|
status =
|
| 750 |
|
|
acpi_ps_next_parse_state(walk_state, op,
|
| 751 |
|
|
status);
|
| 752 |
|
|
if (status == AE_CTRL_PENDING) {
|
| 753 |
|
|
status =
|
| 754 |
|
|
acpi_ps_complete_op(walk_state, &op,
|
| 755 |
|
|
AE_OK);
|
| 756 |
|
|
if (ACPI_FAILURE(status)) {
|
| 757 |
|
|
return_ACPI_STATUS(status);
|
| 758 |
|
|
}
|
| 759 |
|
|
}
|
| 760 |
|
|
|
| 761 |
|
|
if (status == AE_CTRL_TERMINATE) {
|
| 762 |
|
|
status = AE_OK;
|
| 763 |
|
|
|
| 764 |
|
|
/* Clean up */
|
| 765 |
|
|
do {
|
| 766 |
|
|
if (op) {
|
| 767 |
|
|
status2 =
|
| 768 |
|
|
acpi_ps_complete_this_op
|
| 769 |
|
|
(walk_state, op);
|
| 770 |
|
|
if (ACPI_FAILURE
|
| 771 |
|
|
(status2)) {
|
| 772 |
|
|
return_ACPI_STATUS
|
| 773 |
|
|
(status2);
|
| 774 |
|
|
}
|
| 775 |
|
|
}
|
| 776 |
|
|
|
| 777 |
|
|
acpi_ps_pop_scope(&
|
| 778 |
|
|
(walk_state->
|
| 779 |
|
|
parser_state),
|
| 780 |
|
|
&op,
|
| 781 |
|
|
&walk_state->
|
| 782 |
|
|
arg_types,
|
| 783 |
|
|
&walk_state->
|
| 784 |
|
|
arg_count);
|
| 785 |
|
|
|
| 786 |
|
|
} while (op);
|
| 787 |
|
|
|
| 788 |
|
|
return_ACPI_STATUS(status);
|
| 789 |
|
|
}
|
| 790 |
|
|
|
| 791 |
|
|
else if (ACPI_FAILURE(status)) {
|
| 792 |
|
|
|
| 793 |
|
|
/* First error is most important */
|
| 794 |
|
|
|
| 795 |
|
|
(void)
|
| 796 |
|
|
acpi_ps_complete_this_op(walk_state,
|
| 797 |
|
|
op);
|
| 798 |
|
|
return_ACPI_STATUS(status);
|
| 799 |
|
|
}
|
| 800 |
|
|
}
|
| 801 |
|
|
|
| 802 |
|
|
status2 = acpi_ps_complete_this_op(walk_state, op);
|
| 803 |
|
|
if (ACPI_FAILURE(status2)) {
|
| 804 |
|
|
return_ACPI_STATUS(status2);
|
| 805 |
|
|
}
|
| 806 |
|
|
}
|
| 807 |
|
|
|
| 808 |
|
|
acpi_ps_pop_scope(&(walk_state->parser_state), &op,
|
| 809 |
|
|
&walk_state->arg_types,
|
| 810 |
|
|
&walk_state->arg_count);
|
| 811 |
|
|
|
| 812 |
|
|
} while (op);
|
| 813 |
|
|
|
| 814 |
|
|
return_ACPI_STATUS(status);
|
| 815 |
|
|
}
|
| 816 |
|
|
|
| 817 |
|
|
/*******************************************************************************
|
| 818 |
|
|
*
|
| 819 |
|
|
* FUNCTION: acpi_ps_parse_loop
|
| 820 |
|
|
*
|
| 821 |
|
|
* PARAMETERS: walk_state - Current state
|
| 822 |
|
|
*
|
| 823 |
|
|
* RETURN: Status
|
| 824 |
|
|
*
|
| 825 |
|
|
* DESCRIPTION: Parse AML (pointed to by the current parser state) and return
|
| 826 |
|
|
* a tree of ops.
|
| 827 |
|
|
*
|
| 828 |
|
|
******************************************************************************/
|
| 829 |
|
|
|
| 830 |
|
|
acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
|
| 831 |
|
|
{
|
| 832 |
|
|
acpi_status status = AE_OK;
|
| 833 |
|
|
union acpi_parse_object *op = NULL; /* current op */
|
| 834 |
|
|
struct acpi_parse_state *parser_state;
|
| 835 |
|
|
u8 *aml_op_start = NULL;
|
| 836 |
|
|
|
| 837 |
|
|
ACPI_FUNCTION_TRACE_PTR(ps_parse_loop, walk_state);
|
| 838 |
|
|
|
| 839 |
|
|
if (walk_state->descending_callback == NULL) {
|
| 840 |
|
|
return_ACPI_STATUS(AE_BAD_PARAMETER);
|
| 841 |
|
|
}
|
| 842 |
|
|
|
| 843 |
|
|
parser_state = &walk_state->parser_state;
|
| 844 |
|
|
walk_state->arg_types = 0;
|
| 845 |
|
|
|
| 846 |
|
|
#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
|
| 847 |
|
|
|
| 848 |
|
|
if (walk_state->walk_type & ACPI_WALK_METHOD_RESTART) {
|
| 849 |
|
|
|
| 850 |
|
|
/* We are restarting a preempted control method */
|
| 851 |
|
|
|
| 852 |
|
|
if (acpi_ps_has_completed_scope(parser_state)) {
|
| 853 |
|
|
/*
|
| 854 |
|
|
* We must check if a predicate to an IF or WHILE statement
|
| 855 |
|
|
* was just completed
|
| 856 |
|
|
*/
|
| 857 |
|
|
if ((parser_state->scope->parse_scope.op) &&
|
| 858 |
|
|
((parser_state->scope->parse_scope.op->common.
|
| 859 |
|
|
aml_opcode == AML_IF_OP)
|
| 860 |
|
|
|| (parser_state->scope->parse_scope.op->common.
|
| 861 |
|
|
aml_opcode == AML_WHILE_OP))
|
| 862 |
|
|
&& (walk_state->control_state)
|
| 863 |
|
|
&& (walk_state->control_state->common.state ==
|
| 864 |
|
|
ACPI_CONTROL_PREDICATE_EXECUTING)) {
|
| 865 |
|
|
/*
|
| 866 |
|
|
* A predicate was just completed, get the value of the
|
| 867 |
|
|
* predicate and branch based on that value
|
| 868 |
|
|
*/
|
| 869 |
|
|
walk_state->op = NULL;
|
| 870 |
|
|
status =
|
| 871 |
|
|
acpi_ds_get_predicate_value(walk_state,
|
| 872 |
|
|
ACPI_TO_POINTER
|
| 873 |
|
|
(TRUE));
|
| 874 |
|
|
if (ACPI_FAILURE(status)
|
| 875 |
|
|
&& ((status & AE_CODE_MASK) !=
|
| 876 |
|
|
AE_CODE_CONTROL)) {
|
| 877 |
|
|
if (status == AE_AML_NO_RETURN_VALUE) {
|
| 878 |
|
|
ACPI_EXCEPTION((AE_INFO, status,
|
| 879 |
|
|
"Invoked method did not return a value"));
|
| 880 |
|
|
|
| 881 |
|
|
}
|
| 882 |
|
|
|
| 883 |
|
|
ACPI_EXCEPTION((AE_INFO, status,
|
| 884 |
|
|
"GetPredicate Failed"));
|
| 885 |
|
|
return_ACPI_STATUS(status);
|
| 886 |
|
|
}
|
| 887 |
|
|
|
| 888 |
|
|
status =
|
| 889 |
|
|
acpi_ps_next_parse_state(walk_state, op,
|
| 890 |
|
|
status);
|
| 891 |
|
|
}
|
| 892 |
|
|
|
| 893 |
|
|
acpi_ps_pop_scope(parser_state, &op,
|
| 894 |
|
|
&walk_state->arg_types,
|
| 895 |
|
|
&walk_state->arg_count);
|
| 896 |
|
|
ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
|
| 897 |
|
|
"Popped scope, Op=%p\n", op));
|
| 898 |
|
|
} else if (walk_state->prev_op) {
|
| 899 |
|
|
|
| 900 |
|
|
/* We were in the middle of an op */
|
| 901 |
|
|
|
| 902 |
|
|
op = walk_state->prev_op;
|
| 903 |
|
|
walk_state->arg_types = walk_state->prev_arg_types;
|
| 904 |
|
|
}
|
| 905 |
|
|
}
|
| 906 |
|
|
#endif
|
| 907 |
|
|
|
| 908 |
|
|
/* Iterative parsing loop, while there is more AML to process: */
|
| 909 |
|
|
|
| 910 |
|
|
while ((parser_state->aml < parser_state->aml_end) || (op)) {
|
| 911 |
|
|
aml_op_start = parser_state->aml;
|
| 912 |
|
|
if (!op) {
|
| 913 |
|
|
status =
|
| 914 |
|
|
acpi_ps_create_op(walk_state, aml_op_start, &op);
|
| 915 |
|
|
if (ACPI_FAILURE(status)) {
|
| 916 |
|
|
if (status == AE_CTRL_PARSE_CONTINUE) {
|
| 917 |
|
|
continue;
|
| 918 |
|
|
}
|
| 919 |
|
|
|
| 920 |
|
|
if (status == AE_CTRL_PARSE_PENDING) {
|
| 921 |
|
|
status = AE_OK;
|
| 922 |
|
|
}
|
| 923 |
|
|
|
| 924 |
|
|
status =
|
| 925 |
|
|
acpi_ps_complete_op(walk_state, &op,
|
| 926 |
|
|
status);
|
| 927 |
|
|
if (ACPI_FAILURE(status)) {
|
| 928 |
|
|
return_ACPI_STATUS(status);
|
| 929 |
|
|
}
|
| 930 |
|
|
|
| 931 |
|
|
continue;
|
| 932 |
|
|
}
|
| 933 |
|
|
|
| 934 |
|
|
op->common.aml_offset = walk_state->aml_offset;
|
| 935 |
|
|
|
| 936 |
|
|
if (walk_state->op_info) {
|
| 937 |
|
|
ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
|
| 938 |
|
|
"Opcode %4.4X [%s] Op %p Aml %p AmlOffset %5.5X\n",
|
| 939 |
|
|
(u32) op->common.aml_opcode,
|
| 940 |
|
|
walk_state->op_info->name, op,
|
| 941 |
|
|
parser_state->aml,
|
| 942 |
|
|
op->common.aml_offset));
|
| 943 |
|
|
}
|
| 944 |
|
|
}
|
| 945 |
|
|
|
| 946 |
|
|
/*
|
| 947 |
|
|
* Start arg_count at zero because we don't know if there are
|
| 948 |
|
|
* any args yet
|
| 949 |
|
|
*/
|
| 950 |
|
|
walk_state->arg_count = 0;
|
| 951 |
|
|
|
| 952 |
|
|
/* Are there any arguments that must be processed? */
|
| 953 |
|
|
|
| 954 |
|
|
if (walk_state->arg_types) {
|
| 955 |
|
|
|
| 956 |
|
|
/* Get arguments */
|
| 957 |
|
|
|
| 958 |
|
|
status =
|
| 959 |
|
|
acpi_ps_get_arguments(walk_state, aml_op_start, op);
|
| 960 |
|
|
if (ACPI_FAILURE(status)) {
|
| 961 |
|
|
status =
|
| 962 |
|
|
acpi_ps_complete_op(walk_state, &op,
|
| 963 |
|
|
status);
|
| 964 |
|
|
if (ACPI_FAILURE(status)) {
|
| 965 |
|
|
return_ACPI_STATUS(status);
|
| 966 |
|
|
}
|
| 967 |
|
|
|
| 968 |
|
|
continue;
|
| 969 |
|
|
}
|
| 970 |
|
|
}
|
| 971 |
|
|
|
| 972 |
|
|
/* Check for arguments that need to be processed */
|
| 973 |
|
|
|
| 974 |
|
|
if (walk_state->arg_count) {
|
| 975 |
|
|
/*
|
| 976 |
|
|
* There are arguments (complex ones), push Op and
|
| 977 |
|
|
* prepare for argument
|
| 978 |
|
|
*/
|
| 979 |
|
|
status = acpi_ps_push_scope(parser_state, op,
|
| 980 |
|
|
walk_state->arg_types,
|
| 981 |
|
|
walk_state->arg_count);
|
| 982 |
|
|
if (ACPI_FAILURE(status)) {
|
| 983 |
|
|
status =
|
| 984 |
|
|
acpi_ps_complete_op(walk_state, &op,
|
| 985 |
|
|
status);
|
| 986 |
|
|
if (ACPI_FAILURE(status)) {
|
| 987 |
|
|
return_ACPI_STATUS(status);
|
| 988 |
|
|
}
|
| 989 |
|
|
|
| 990 |
|
|
continue;
|
| 991 |
|
|
}
|
| 992 |
|
|
|
| 993 |
|
|
op = NULL;
|
| 994 |
|
|
continue;
|
| 995 |
|
|
}
|
| 996 |
|
|
|
| 997 |
|
|
/*
|
| 998 |
|
|
* All arguments have been processed -- Op is complete,
|
| 999 |
|
|
* prepare for next
|
| 1000 |
|
|
*/
|
| 1001 |
|
|
walk_state->op_info =
|
| 1002 |
|
|
acpi_ps_get_opcode_info(op->common.aml_opcode);
|
| 1003 |
|
|
if (walk_state->op_info->flags & AML_NAMED) {
|
| 1004 |
|
|
if (acpi_gbl_depth) {
|
| 1005 |
|
|
acpi_gbl_depth--;
|
| 1006 |
|
|
}
|
| 1007 |
|
|
|
| 1008 |
|
|
if (op->common.aml_opcode == AML_REGION_OP) {
|
| 1009 |
|
|
/*
|
| 1010 |
|
|
* Skip parsing of control method or opregion body,
|
| 1011 |
|
|
* because we don't have enough info in the first pass
|
| 1012 |
|
|
* to parse them correctly.
|
| 1013 |
|
|
*
|
| 1014 |
|
|
* Completed parsing an op_region declaration, we now
|
| 1015 |
|
|
* know the length.
|
| 1016 |
|
|
*/
|
| 1017 |
|
|
op->named.length =
|
| 1018 |
|
|
(u32) (parser_state->aml - op->named.data);
|
| 1019 |
|
|
}
|
| 1020 |
|
|
}
|
| 1021 |
|
|
|
| 1022 |
|
|
if (walk_state->op_info->flags & AML_CREATE) {
|
| 1023 |
|
|
/*
|
| 1024 |
|
|
* Backup to beginning of create_xXXfield declaration (1 for
|
| 1025 |
|
|
* Opcode)
|
| 1026 |
|
|
*
|
| 1027 |
|
|
* body_length is unknown until we parse the body
|
| 1028 |
|
|
*/
|
| 1029 |
|
|
op->named.length =
|
| 1030 |
|
|
(u32) (parser_state->aml - op->named.data);
|
| 1031 |
|
|
}
|
| 1032 |
|
|
|
| 1033 |
|
|
/* This op complete, notify the dispatcher */
|
| 1034 |
|
|
|
| 1035 |
|
|
if (walk_state->ascending_callback != NULL) {
|
| 1036 |
|
|
walk_state->op = op;
|
| 1037 |
|
|
walk_state->opcode = op->common.aml_opcode;
|
| 1038 |
|
|
|
| 1039 |
|
|
status = walk_state->ascending_callback(walk_state);
|
| 1040 |
|
|
status =
|
| 1041 |
|
|
acpi_ps_next_parse_state(walk_state, op, status);
|
| 1042 |
|
|
if (status == AE_CTRL_PENDING) {
|
| 1043 |
|
|
status = AE_OK;
|
| 1044 |
|
|
}
|
| 1045 |
|
|
}
|
| 1046 |
|
|
|
| 1047 |
|
|
status = acpi_ps_complete_op(walk_state, &op, status);
|
| 1048 |
|
|
if (ACPI_FAILURE(status)) {
|
| 1049 |
|
|
return_ACPI_STATUS(status);
|
| 1050 |
|
|
}
|
| 1051 |
|
|
|
| 1052 |
|
|
} /* while parser_state->Aml */
|
| 1053 |
|
|
|
| 1054 |
|
|
status = acpi_ps_complete_final_op(walk_state, op, status);
|
| 1055 |
|
|
return_ACPI_STATUS(status);
|
| 1056 |
|
|
}
|
