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1275 |
phoenix |
/******************************************************************************
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*
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* Module Name: dswload - Dispatcher namespace load callbacks
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2004, 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/acparser.h>
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#include <acpi/amlcode.h>
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#include <acpi/acdispat.h>
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#include <acpi/acinterp.h>
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#include <acpi/acnamesp.h>
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#include <acpi/acevents.h>
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#define _COMPONENT ACPI_DISPATCHER
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ACPI_MODULE_NAME ("dswload")
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/*******************************************************************************
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*
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* FUNCTION: acpi_ds_init_callbacks
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*
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* PARAMETERS: walk_state - Current state of the parse tree walk
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* pass_number - 1, 2, or 3
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*
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* RETURN: Status
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*
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* DESCRIPTION: Init walk state callbacks
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*
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******************************************************************************/
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acpi_status
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acpi_ds_init_callbacks (
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struct acpi_walk_state *walk_state,
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u32 pass_number)
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{
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switch (pass_number) {
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case 1:
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walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | ACPI_PARSE_DELETE_TREE;
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walk_state->descending_callback = acpi_ds_load1_begin_op;
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walk_state->ascending_callback = acpi_ds_load1_end_op;
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break;
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case 2:
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walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | ACPI_PARSE_DELETE_TREE;
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walk_state->descending_callback = acpi_ds_load2_begin_op;
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walk_state->ascending_callback = acpi_ds_load2_end_op;
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break;
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case 3:
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#ifndef ACPI_NO_METHOD_EXECUTION
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walk_state->parse_flags |= ACPI_PARSE_EXECUTE | ACPI_PARSE_DELETE_TREE;
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walk_state->descending_callback = acpi_ds_exec_begin_op;
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walk_state->ascending_callback = acpi_ds_exec_end_op;
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#endif
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break;
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default:
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return (AE_BAD_PARAMETER);
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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_ds_load1_begin_op
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*
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* PARAMETERS: walk_state - Current state of the parse tree walk
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* Op - Op that has been just been reached in the
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* walk; Arguments have not been evaluated yet.
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*
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* RETURN: Status
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*
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* DESCRIPTION: Descending callback used during the loading of ACPI tables.
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*
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******************************************************************************/
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acpi_status
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acpi_ds_load1_begin_op (
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struct acpi_walk_state *walk_state,
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union acpi_parse_object **out_op)
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{
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union acpi_parse_object *op;
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struct acpi_namespace_node *node;
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acpi_status status;
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acpi_object_type object_type;
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char *path;
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u32 flags;
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ACPI_FUNCTION_NAME ("ds_load1_begin_op");
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op = walk_state->op;
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ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, walk_state));
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/* We are only interested in opcodes that have an associated name */
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if (op) {
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if (!(walk_state->op_info->flags & AML_NAMED)) {
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#if 0
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if ((walk_state->op_info->class == AML_CLASS_EXECUTE) ||
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(walk_state->op_info->class == AML_CLASS_CONTROL)) {
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acpi_os_printf ("\n\n***EXECUTABLE OPCODE %s***\n\n", walk_state->op_info->name);
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*out_op = op;
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return (AE_CTRL_SKIP);
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}
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#endif
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*out_op = op;
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return (AE_OK);
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}
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/* Check if this object has already been installed in the namespace */
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if (op->common.node) {
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*out_op = op;
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return (AE_OK);
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}
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}
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path = acpi_ps_get_next_namestring (&walk_state->parser_state);
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/* Map the raw opcode into an internal object type */
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object_type = walk_state->op_info->object_type;
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ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
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"State=%p Op=%p [%s]\n", walk_state, op, acpi_ut_get_type_name (object_type)));
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switch (walk_state->opcode) {
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case AML_SCOPE_OP:
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/*
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* The target name of the Scope() operator must exist at this point so
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* that we can actually open the scope to enter new names underneath it.
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* Allow search-to-root for single namesegs.
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*/
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status = acpi_ns_lookup (walk_state->scope_info, path, object_type,
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ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, walk_state, &(node));
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if (ACPI_FAILURE (status)) {
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ACPI_REPORT_NSERROR (path, status);
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return (status);
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}
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/*
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* Check to make sure that the target is
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* one of the opcodes that actually opens a scope
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*/
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switch (node->type) {
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case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
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case ACPI_TYPE_DEVICE:
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case ACPI_TYPE_POWER:
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case ACPI_TYPE_PROCESSOR:
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case ACPI_TYPE_THERMAL:
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/* These are acceptable types */
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break;
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case ACPI_TYPE_INTEGER:
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case ACPI_TYPE_STRING:
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case ACPI_TYPE_BUFFER:
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/*
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* These types we will allow, but we will change the type. This
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* enables some existing code of the form:
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*
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* Name (DEB, 0)
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* Scope (DEB) { ... }
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*
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| 212 |
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* Note: silently change the type here. On the second pass, we will report a warning
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*/
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| 214 |
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| 215 |
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ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n",
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path, acpi_ut_get_type_name (node->type)));
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| 218 |
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node->type = ACPI_TYPE_ANY;
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walk_state->scope_info->common.value = ACPI_TYPE_ANY;
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break;
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| 221 |
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default:
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/* All other types are an error */
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| 225 |
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| 226 |
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ACPI_REPORT_ERROR (("Invalid type (%s) for target of Scope operator [%4.4s] (Cannot override)\n",
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| 227 |
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acpi_ut_get_type_name (node->type), path));
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| 228 |
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| 229 |
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return (AE_AML_OPERAND_TYPE);
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}
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| 231 |
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break;
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| 232 |
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| 233 |
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| 234 |
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default:
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| 235 |
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| 236 |
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/*
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| 237 |
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* For all other named opcodes, we will enter the name into the namespace.
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| 238 |
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*
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| 239 |
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* Setup the search flags.
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| 240 |
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* Since we are entering a name into the namespace, we do not want to
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| 241 |
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* enable the search-to-root upsearch.
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| 242 |
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*
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| 243 |
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* There are only two conditions where it is acceptable that the name
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| 244 |
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* already exists:
|
| 245 |
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* 1) the Scope() operator can reopen a scoping object that was
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| 246 |
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* previously defined (Scope, Method, Device, etc.)
|
| 247 |
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* 2) Whenever we are parsing a deferred opcode (op_region, Buffer,
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| 248 |
|
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* buffer_field, or Package), the name of the object is already
|
| 249 |
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* in the namespace.
|
| 250 |
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*/
|
| 251 |
|
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if (walk_state->deferred_node) {
|
| 252 |
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/* This name is already in the namespace, get the node */
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| 253 |
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| 254 |
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node = walk_state->deferred_node;
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| 255 |
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status = AE_OK;
|
| 256 |
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break;
|
| 257 |
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}
|
| 258 |
|
|
|
| 259 |
|
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flags = ACPI_NS_NO_UPSEARCH;
|
| 260 |
|
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if ((walk_state->opcode != AML_SCOPE_OP) &&
|
| 261 |
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(!(walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP))) {
|
| 262 |
|
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flags |= ACPI_NS_ERROR_IF_FOUND;
|
| 263 |
|
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ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Cannot already exist\n",
|
| 264 |
|
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acpi_ut_get_type_name (object_type)));
|
| 265 |
|
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}
|
| 266 |
|
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else {
|
| 267 |
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Both Find or Create allowed\n",
|
| 268 |
|
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acpi_ut_get_type_name (object_type)));
|
| 269 |
|
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}
|
| 270 |
|
|
|
| 271 |
|
|
/*
|
| 272 |
|
|
* Enter the named type into the internal namespace. We enter the name
|
| 273 |
|
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* as we go downward in the parse tree. Any necessary subobjects that involve
|
| 274 |
|
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* arguments to the opcode must be created as we go back up the parse tree later.
|
| 275 |
|
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*/
|
| 276 |
|
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status = acpi_ns_lookup (walk_state->scope_info, path, object_type,
|
| 277 |
|
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ACPI_IMODE_LOAD_PASS1, flags, walk_state, &(node));
|
| 278 |
|
|
if (ACPI_FAILURE (status)) {
|
| 279 |
|
|
ACPI_REPORT_NSERROR (path, status);
|
| 280 |
|
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return (status);
|
| 281 |
|
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}
|
| 282 |
|
|
break;
|
| 283 |
|
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}
|
| 284 |
|
|
|
| 285 |
|
|
|
| 286 |
|
|
/* Common exit */
|
| 287 |
|
|
|
| 288 |
|
|
if (!op) {
|
| 289 |
|
|
/* Create a new op */
|
| 290 |
|
|
|
| 291 |
|
|
op = acpi_ps_alloc_op (walk_state->opcode);
|
| 292 |
|
|
if (!op) {
|
| 293 |
|
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return (AE_NO_MEMORY);
|
| 294 |
|
|
}
|
| 295 |
|
|
}
|
| 296 |
|
|
|
| 297 |
|
|
/* Initialize */
|
| 298 |
|
|
|
| 299 |
|
|
op->named.name = node->name.integer;
|
| 300 |
|
|
|
| 301 |
|
|
#if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY))
|
| 302 |
|
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op->named.path = (u8 *) path;
|
| 303 |
|
|
#endif
|
| 304 |
|
|
|
| 305 |
|
|
|
| 306 |
|
|
/*
|
| 307 |
|
|
* Put the Node in the "op" object that the parser uses, so we
|
| 308 |
|
|
* can get it again quickly when this scope is closed
|
| 309 |
|
|
*/
|
| 310 |
|
|
op->common.node = node;
|
| 311 |
|
|
acpi_ps_append_arg (acpi_ps_get_parent_scope (&walk_state->parser_state), op);
|
| 312 |
|
|
|
| 313 |
|
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*out_op = op;
|
| 314 |
|
|
return (status);
|
| 315 |
|
|
}
|
| 316 |
|
|
|
| 317 |
|
|
|
| 318 |
|
|
/*******************************************************************************
|
| 319 |
|
|
*
|
| 320 |
|
|
* FUNCTION: acpi_ds_load1_end_op
|
| 321 |
|
|
*
|
| 322 |
|
|
* PARAMETERS: walk_state - Current state of the parse tree walk
|
| 323 |
|
|
* Op - Op that has been just been completed in the
|
| 324 |
|
|
* walk; Arguments have now been evaluated.
|
| 325 |
|
|
*
|
| 326 |
|
|
* RETURN: Status
|
| 327 |
|
|
*
|
| 328 |
|
|
* DESCRIPTION: Ascending callback used during the loading of the namespace,
|
| 329 |
|
|
* both control methods and everything else.
|
| 330 |
|
|
*
|
| 331 |
|
|
******************************************************************************/
|
| 332 |
|
|
|
| 333 |
|
|
acpi_status
|
| 334 |
|
|
acpi_ds_load1_end_op (
|
| 335 |
|
|
struct acpi_walk_state *walk_state)
|
| 336 |
|
|
{
|
| 337 |
|
|
union acpi_parse_object *op;
|
| 338 |
|
|
acpi_object_type object_type;
|
| 339 |
|
|
acpi_status status = AE_OK;
|
| 340 |
|
|
|
| 341 |
|
|
|
| 342 |
|
|
ACPI_FUNCTION_NAME ("ds_load1_end_op");
|
| 343 |
|
|
|
| 344 |
|
|
|
| 345 |
|
|
op = walk_state->op;
|
| 346 |
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, walk_state));
|
| 347 |
|
|
|
| 348 |
|
|
/* We are only interested in opcodes that have an associated name */
|
| 349 |
|
|
|
| 350 |
|
|
if (!(walk_state->op_info->flags & (AML_NAMED | AML_FIELD))) {
|
| 351 |
|
|
return (AE_OK);
|
| 352 |
|
|
}
|
| 353 |
|
|
|
| 354 |
|
|
/* Get the object type to determine if we should pop the scope */
|
| 355 |
|
|
|
| 356 |
|
|
object_type = walk_state->op_info->object_type;
|
| 357 |
|
|
|
| 358 |
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
| 359 |
|
|
if (walk_state->op_info->flags & AML_FIELD) {
|
| 360 |
|
|
if (walk_state->opcode == AML_FIELD_OP ||
|
| 361 |
|
|
walk_state->opcode == AML_BANK_FIELD_OP ||
|
| 362 |
|
|
walk_state->opcode == AML_INDEX_FIELD_OP) {
|
| 363 |
|
|
status = acpi_ds_init_field_objects (op, walk_state);
|
| 364 |
|
|
}
|
| 365 |
|
|
return (status);
|
| 366 |
|
|
}
|
| 367 |
|
|
|
| 368 |
|
|
|
| 369 |
|
|
if (op->common.aml_opcode == AML_REGION_OP) {
|
| 370 |
|
|
status = acpi_ex_create_region (op->named.data, op->named.length,
|
| 371 |
|
|
(acpi_adr_space_type) ((op->common.value.arg)->common.value.integer), walk_state);
|
| 372 |
|
|
if (ACPI_FAILURE (status)) {
|
| 373 |
|
|
return (status);
|
| 374 |
|
|
}
|
| 375 |
|
|
}
|
| 376 |
|
|
#endif
|
| 377 |
|
|
|
| 378 |
|
|
if (op->common.aml_opcode == AML_NAME_OP) {
|
| 379 |
|
|
/* For Name opcode, get the object type from the argument */
|
| 380 |
|
|
|
| 381 |
|
|
if (op->common.value.arg) {
|
| 382 |
|
|
object_type = (acpi_ps_get_opcode_info ((op->common.value.arg)->common.aml_opcode))->object_type;
|
| 383 |
|
|
op->common.node->type = (u8) object_type;
|
| 384 |
|
|
}
|
| 385 |
|
|
}
|
| 386 |
|
|
|
| 387 |
|
|
if (op->common.aml_opcode == AML_METHOD_OP) {
|
| 388 |
|
|
/*
|
| 389 |
|
|
* method_op pkg_length name_string method_flags term_list
|
| 390 |
|
|
*
|
| 391 |
|
|
* Note: We must create the method node/object pair as soon as we
|
| 392 |
|
|
* see the method declaration. This allows later pass1 parsing
|
| 393 |
|
|
* of invocations of the method (need to know the number of
|
| 394 |
|
|
* arguments.)
|
| 395 |
|
|
*/
|
| 396 |
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
| 397 |
|
|
"LOADING-Method: State=%p Op=%p named_obj=%p\n",
|
| 398 |
|
|
walk_state, op, op->named.node));
|
| 399 |
|
|
|
| 400 |
|
|
if (!acpi_ns_get_attached_object (op->named.node)) {
|
| 401 |
|
|
walk_state->operands[0] = (void *) op->named.node;
|
| 402 |
|
|
walk_state->num_operands = 1;
|
| 403 |
|
|
|
| 404 |
|
|
status = acpi_ds_create_operands (walk_state, op->common.value.arg);
|
| 405 |
|
|
if (ACPI_SUCCESS (status)) {
|
| 406 |
|
|
status = acpi_ex_create_method (op->named.data,
|
| 407 |
|
|
op->named.length, walk_state);
|
| 408 |
|
|
}
|
| 409 |
|
|
walk_state->operands[0] = NULL;
|
| 410 |
|
|
walk_state->num_operands = 0;
|
| 411 |
|
|
|
| 412 |
|
|
if (ACPI_FAILURE (status)) {
|
| 413 |
|
|
return (status);
|
| 414 |
|
|
}
|
| 415 |
|
|
}
|
| 416 |
|
|
}
|
| 417 |
|
|
|
| 418 |
|
|
/* Pop the scope stack */
|
| 419 |
|
|
|
| 420 |
|
|
if (acpi_ns_opens_scope (object_type)) {
|
| 421 |
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s): Popping scope for Op %p\n",
|
| 422 |
|
|
acpi_ut_get_type_name (object_type), op));
|
| 423 |
|
|
|
| 424 |
|
|
status = acpi_ds_scope_stack_pop (walk_state);
|
| 425 |
|
|
}
|
| 426 |
|
|
|
| 427 |
|
|
return (status);
|
| 428 |
|
|
}
|
| 429 |
|
|
|
| 430 |
|
|
|
| 431 |
|
|
/*******************************************************************************
|
| 432 |
|
|
*
|
| 433 |
|
|
* FUNCTION: acpi_ds_load2_begin_op
|
| 434 |
|
|
*
|
| 435 |
|
|
* PARAMETERS: walk_state - Current state of the parse tree walk
|
| 436 |
|
|
* Op - Op that has been just been reached in the
|
| 437 |
|
|
* walk; Arguments have not been evaluated yet.
|
| 438 |
|
|
*
|
| 439 |
|
|
* RETURN: Status
|
| 440 |
|
|
*
|
| 441 |
|
|
* DESCRIPTION: Descending callback used during the loading of ACPI tables.
|
| 442 |
|
|
*
|
| 443 |
|
|
******************************************************************************/
|
| 444 |
|
|
|
| 445 |
|
|
acpi_status
|
| 446 |
|
|
acpi_ds_load2_begin_op (
|
| 447 |
|
|
struct acpi_walk_state *walk_state,
|
| 448 |
|
|
union acpi_parse_object **out_op)
|
| 449 |
|
|
{
|
| 450 |
|
|
union acpi_parse_object *op;
|
| 451 |
|
|
struct acpi_namespace_node *node;
|
| 452 |
|
|
acpi_status status;
|
| 453 |
|
|
acpi_object_type object_type;
|
| 454 |
|
|
char *buffer_ptr;
|
| 455 |
|
|
|
| 456 |
|
|
|
| 457 |
|
|
ACPI_FUNCTION_TRACE ("ds_load2_begin_op");
|
| 458 |
|
|
|
| 459 |
|
|
|
| 460 |
|
|
op = walk_state->op;
|
| 461 |
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, walk_state));
|
| 462 |
|
|
|
| 463 |
|
|
if (op) {
|
| 464 |
|
|
/* We only care about Namespace opcodes here */
|
| 465 |
|
|
|
| 466 |
|
|
if ((!(walk_state->op_info->flags & AML_NSOPCODE) && (walk_state->opcode != AML_INT_NAMEPATH_OP)) ||
|
| 467 |
|
|
(!(walk_state->op_info->flags & AML_NAMED))) {
|
| 468 |
|
|
return_ACPI_STATUS (AE_OK);
|
| 469 |
|
|
}
|
| 470 |
|
|
|
| 471 |
|
|
/*
|
| 472 |
|
|
* Get the name we are going to enter or lookup in the namespace
|
| 473 |
|
|
*/
|
| 474 |
|
|
if (walk_state->opcode == AML_INT_NAMEPATH_OP) {
|
| 475 |
|
|
/* For Namepath op, get the path string */
|
| 476 |
|
|
|
| 477 |
|
|
buffer_ptr = op->common.value.string;
|
| 478 |
|
|
if (!buffer_ptr) {
|
| 479 |
|
|
/* No name, just exit */
|
| 480 |
|
|
|
| 481 |
|
|
return_ACPI_STATUS (AE_OK);
|
| 482 |
|
|
}
|
| 483 |
|
|
}
|
| 484 |
|
|
else {
|
| 485 |
|
|
/* Get name from the op */
|
| 486 |
|
|
|
| 487 |
|
|
buffer_ptr = (char *) &op->named.name;
|
| 488 |
|
|
}
|
| 489 |
|
|
}
|
| 490 |
|
|
else {
|
| 491 |
|
|
/* Get the namestring from the raw AML */
|
| 492 |
|
|
|
| 493 |
|
|
buffer_ptr = acpi_ps_get_next_namestring (&walk_state->parser_state);
|
| 494 |
|
|
}
|
| 495 |
|
|
|
| 496 |
|
|
/* Map the opcode into an internal object type */
|
| 497 |
|
|
|
| 498 |
|
|
object_type = walk_state->op_info->object_type;
|
| 499 |
|
|
|
| 500 |
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
| 501 |
|
|
"State=%p Op=%p Type=%X\n", walk_state, op, object_type));
|
| 502 |
|
|
|
| 503 |
|
|
|
| 504 |
|
|
switch (walk_state->opcode) {
|
| 505 |
|
|
case AML_FIELD_OP:
|
| 506 |
|
|
case AML_BANK_FIELD_OP:
|
| 507 |
|
|
case AML_INDEX_FIELD_OP:
|
| 508 |
|
|
|
| 509 |
|
|
node = NULL;
|
| 510 |
|
|
status = AE_OK;
|
| 511 |
|
|
break;
|
| 512 |
|
|
|
| 513 |
|
|
case AML_INT_NAMEPATH_OP:
|
| 514 |
|
|
|
| 515 |
|
|
/*
|
| 516 |
|
|
* The name_path is an object reference to an existing object. Don't enter the
|
| 517 |
|
|
* name into the namespace, but look it up for use later
|
| 518 |
|
|
*/
|
| 519 |
|
|
status = acpi_ns_lookup (walk_state->scope_info, buffer_ptr, object_type,
|
| 520 |
|
|
ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, walk_state, &(node));
|
| 521 |
|
|
break;
|
| 522 |
|
|
|
| 523 |
|
|
case AML_SCOPE_OP:
|
| 524 |
|
|
|
| 525 |
|
|
/*
|
| 526 |
|
|
* The Path is an object reference to an existing object. Don't enter the
|
| 527 |
|
|
* name into the namespace, but look it up for use later
|
| 528 |
|
|
*/
|
| 529 |
|
|
status = acpi_ns_lookup (walk_state->scope_info, buffer_ptr, object_type,
|
| 530 |
|
|
ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, walk_state, &(node));
|
| 531 |
|
|
if (ACPI_FAILURE (status)) {
|
| 532 |
|
|
ACPI_REPORT_NSERROR (buffer_ptr, status);
|
| 533 |
|
|
return_ACPI_STATUS (status);
|
| 534 |
|
|
}
|
| 535 |
|
|
/*
|
| 536 |
|
|
* We must check to make sure that the target is
|
| 537 |
|
|
* one of the opcodes that actually opens a scope
|
| 538 |
|
|
*/
|
| 539 |
|
|
switch (node->type) {
|
| 540 |
|
|
case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
|
| 541 |
|
|
case ACPI_TYPE_DEVICE:
|
| 542 |
|
|
case ACPI_TYPE_POWER:
|
| 543 |
|
|
case ACPI_TYPE_PROCESSOR:
|
| 544 |
|
|
case ACPI_TYPE_THERMAL:
|
| 545 |
|
|
|
| 546 |
|
|
/* These are acceptable types */
|
| 547 |
|
|
break;
|
| 548 |
|
|
|
| 549 |
|
|
case ACPI_TYPE_INTEGER:
|
| 550 |
|
|
case ACPI_TYPE_STRING:
|
| 551 |
|
|
case ACPI_TYPE_BUFFER:
|
| 552 |
|
|
|
| 553 |
|
|
/*
|
| 554 |
|
|
* These types we will allow, but we will change the type. This
|
| 555 |
|
|
* enables some existing code of the form:
|
| 556 |
|
|
*
|
| 557 |
|
|
* Name (DEB, 0)
|
| 558 |
|
|
* Scope (DEB) { ... }
|
| 559 |
|
|
*/
|
| 560 |
|
|
|
| 561 |
|
|
ACPI_REPORT_WARNING (("Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n",
|
| 562 |
|
|
buffer_ptr, acpi_ut_get_type_name (node->type)));
|
| 563 |
|
|
|
| 564 |
|
|
node->type = ACPI_TYPE_ANY;
|
| 565 |
|
|
walk_state->scope_info->common.value = ACPI_TYPE_ANY;
|
| 566 |
|
|
break;
|
| 567 |
|
|
|
| 568 |
|
|
default:
|
| 569 |
|
|
|
| 570 |
|
|
/* All other types are an error */
|
| 571 |
|
|
|
| 572 |
|
|
ACPI_REPORT_ERROR (("Invalid type (%s) for target of Scope operator [%4.4s]\n",
|
| 573 |
|
|
acpi_ut_get_type_name (node->type), buffer_ptr));
|
| 574 |
|
|
|
| 575 |
|
|
return (AE_AML_OPERAND_TYPE);
|
| 576 |
|
|
}
|
| 577 |
|
|
break;
|
| 578 |
|
|
|
| 579 |
|
|
default:
|
| 580 |
|
|
|
| 581 |
|
|
/* All other opcodes */
|
| 582 |
|
|
|
| 583 |
|
|
if (op && op->common.node) {
|
| 584 |
|
|
/* This op/node was previously entered into the namespace */
|
| 585 |
|
|
|
| 586 |
|
|
node = op->common.node;
|
| 587 |
|
|
|
| 588 |
|
|
if (acpi_ns_opens_scope (object_type)) {
|
| 589 |
|
|
status = acpi_ds_scope_stack_push (node, object_type, walk_state);
|
| 590 |
|
|
if (ACPI_FAILURE (status)) {
|
| 591 |
|
|
return_ACPI_STATUS (status);
|
| 592 |
|
|
}
|
| 593 |
|
|
|
| 594 |
|
|
}
|
| 595 |
|
|
return_ACPI_STATUS (AE_OK);
|
| 596 |
|
|
}
|
| 597 |
|
|
|
| 598 |
|
|
/*
|
| 599 |
|
|
* Enter the named type into the internal namespace. We enter the name
|
| 600 |
|
|
* as we go downward in the parse tree. Any necessary subobjects that involve
|
| 601 |
|
|
* arguments to the opcode must be created as we go back up the parse tree later.
|
| 602 |
|
|
*
|
| 603 |
|
|
* Note: Name may already exist if we are executing a deferred opcode.
|
| 604 |
|
|
*/
|
| 605 |
|
|
if (walk_state->deferred_node) {
|
| 606 |
|
|
/* This name is already in the namespace, get the node */
|
| 607 |
|
|
|
| 608 |
|
|
node = walk_state->deferred_node;
|
| 609 |
|
|
status = AE_OK;
|
| 610 |
|
|
break;
|
| 611 |
|
|
}
|
| 612 |
|
|
|
| 613 |
|
|
status = acpi_ns_lookup (walk_state->scope_info, buffer_ptr, object_type,
|
| 614 |
|
|
ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH, walk_state, &(node));
|
| 615 |
|
|
break;
|
| 616 |
|
|
}
|
| 617 |
|
|
|
| 618 |
|
|
if (ACPI_FAILURE (status)) {
|
| 619 |
|
|
ACPI_REPORT_NSERROR (buffer_ptr, status);
|
| 620 |
|
|
return_ACPI_STATUS (status);
|
| 621 |
|
|
}
|
| 622 |
|
|
|
| 623 |
|
|
|
| 624 |
|
|
if (!op) {
|
| 625 |
|
|
/* Create a new op */
|
| 626 |
|
|
|
| 627 |
|
|
op = acpi_ps_alloc_op (walk_state->opcode);
|
| 628 |
|
|
if (!op) {
|
| 629 |
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
| 630 |
|
|
}
|
| 631 |
|
|
|
| 632 |
|
|
/* Initialize the new op */
|
| 633 |
|
|
|
| 634 |
|
|
if (node) {
|
| 635 |
|
|
op->named.name = node->name.integer;
|
| 636 |
|
|
}
|
| 637 |
|
|
if (out_op) {
|
| 638 |
|
|
*out_op = op;
|
| 639 |
|
|
}
|
| 640 |
|
|
}
|
| 641 |
|
|
|
| 642 |
|
|
/*
|
| 643 |
|
|
* Put the Node in the "op" object that the parser uses, so we
|
| 644 |
|
|
* can get it again quickly when this scope is closed
|
| 645 |
|
|
*/
|
| 646 |
|
|
op->common.node = node;
|
| 647 |
|
|
|
| 648 |
|
|
return_ACPI_STATUS (status);
|
| 649 |
|
|
}
|
| 650 |
|
|
|
| 651 |
|
|
|
| 652 |
|
|
/*******************************************************************************
|
| 653 |
|
|
*
|
| 654 |
|
|
* FUNCTION: acpi_ds_load2_end_op
|
| 655 |
|
|
*
|
| 656 |
|
|
* PARAMETERS: walk_state - Current state of the parse tree walk
|
| 657 |
|
|
* Op - Op that has been just been completed in the
|
| 658 |
|
|
* walk; Arguments have now been evaluated.
|
| 659 |
|
|
*
|
| 660 |
|
|
* RETURN: Status
|
| 661 |
|
|
*
|
| 662 |
|
|
* DESCRIPTION: Ascending callback used during the loading of the namespace,
|
| 663 |
|
|
* both control methods and everything else.
|
| 664 |
|
|
*
|
| 665 |
|
|
******************************************************************************/
|
| 666 |
|
|
|
| 667 |
|
|
acpi_status
|
| 668 |
|
|
acpi_ds_load2_end_op (
|
| 669 |
|
|
struct acpi_walk_state *walk_state)
|
| 670 |
|
|
{
|
| 671 |
|
|
union acpi_parse_object *op;
|
| 672 |
|
|
acpi_status status = AE_OK;
|
| 673 |
|
|
acpi_object_type object_type;
|
| 674 |
|
|
struct acpi_namespace_node *node;
|
| 675 |
|
|
union acpi_parse_object *arg;
|
| 676 |
|
|
struct acpi_namespace_node *new_node;
|
| 677 |
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
| 678 |
|
|
u32 i;
|
| 679 |
|
|
#endif
|
| 680 |
|
|
|
| 681 |
|
|
|
| 682 |
|
|
ACPI_FUNCTION_TRACE ("ds_load2_end_op");
|
| 683 |
|
|
|
| 684 |
|
|
op = walk_state->op;
|
| 685 |
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n",
|
| 686 |
|
|
walk_state->op_info->name, op, walk_state));
|
| 687 |
|
|
|
| 688 |
|
|
/* Only interested in opcodes that have namespace objects */
|
| 689 |
|
|
|
| 690 |
|
|
if (!(walk_state->op_info->flags & AML_NSOBJECT)) {
|
| 691 |
|
|
return_ACPI_STATUS (AE_OK);
|
| 692 |
|
|
}
|
| 693 |
|
|
|
| 694 |
|
|
if (op->common.aml_opcode == AML_SCOPE_OP) {
|
| 695 |
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
| 696 |
|
|
"Ending scope Op=%p State=%p\n", op, walk_state));
|
| 697 |
|
|
}
|
| 698 |
|
|
|
| 699 |
|
|
|
| 700 |
|
|
object_type = walk_state->op_info->object_type;
|
| 701 |
|
|
|
| 702 |
|
|
/*
|
| 703 |
|
|
* Get the Node/name from the earlier lookup
|
| 704 |
|
|
* (It was saved in the *op structure)
|
| 705 |
|
|
*/
|
| 706 |
|
|
node = op->common.node;
|
| 707 |
|
|
|
| 708 |
|
|
/*
|
| 709 |
|
|
* Put the Node on the object stack (Contains the ACPI Name of
|
| 710 |
|
|
* this object)
|
| 711 |
|
|
*/
|
| 712 |
|
|
walk_state->operands[0] = (void *) node;
|
| 713 |
|
|
walk_state->num_operands = 1;
|
| 714 |
|
|
|
| 715 |
|
|
/* Pop the scope stack */
|
| 716 |
|
|
|
| 717 |
|
|
if (acpi_ns_opens_scope (object_type) && (op->common.aml_opcode != AML_INT_METHODCALL_OP)) {
|
| 718 |
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s) Popping scope for Op %p\n",
|
| 719 |
|
|
acpi_ut_get_type_name (object_type), op));
|
| 720 |
|
|
|
| 721 |
|
|
status = acpi_ds_scope_stack_pop (walk_state);
|
| 722 |
|
|
if (ACPI_FAILURE (status)) {
|
| 723 |
|
|
goto cleanup;
|
| 724 |
|
|
}
|
| 725 |
|
|
}
|
| 726 |
|
|
|
| 727 |
|
|
/*
|
| 728 |
|
|
* Named operations are as follows:
|
| 729 |
|
|
*
|
| 730 |
|
|
* AML_ALIAS
|
| 731 |
|
|
* AML_BANKFIELD
|
| 732 |
|
|
* AML_CREATEBITFIELD
|
| 733 |
|
|
* AML_CREATEBYTEFIELD
|
| 734 |
|
|
* AML_CREATEDWORDFIELD
|
| 735 |
|
|
* AML_CREATEFIELD
|
| 736 |
|
|
* AML_CREATEQWORDFIELD
|
| 737 |
|
|
* AML_CREATEWORDFIELD
|
| 738 |
|
|
* AML_DATA_REGION
|
| 739 |
|
|
* AML_DEVICE
|
| 740 |
|
|
* AML_EVENT
|
| 741 |
|
|
* AML_FIELD
|
| 742 |
|
|
* AML_INDEXFIELD
|
| 743 |
|
|
* AML_METHOD
|
| 744 |
|
|
* AML_METHODCALL
|
| 745 |
|
|
* AML_MUTEX
|
| 746 |
|
|
* AML_NAME
|
| 747 |
|
|
* AML_NAMEDFIELD
|
| 748 |
|
|
* AML_OPREGION
|
| 749 |
|
|
* AML_POWERRES
|
| 750 |
|
|
* AML_PROCESSOR
|
| 751 |
|
|
* AML_SCOPE
|
| 752 |
|
|
* AML_THERMALZONE
|
| 753 |
|
|
*/
|
| 754 |
|
|
|
| 755 |
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
| 756 |
|
|
"Create-Load [%s] State=%p Op=%p named_obj=%p\n",
|
| 757 |
|
|
acpi_ps_get_opcode_name (op->common.aml_opcode), walk_state, op, node));
|
| 758 |
|
|
|
| 759 |
|
|
/* Decode the opcode */
|
| 760 |
|
|
|
| 761 |
|
|
arg = op->common.value.arg;
|
| 762 |
|
|
|
| 763 |
|
|
switch (walk_state->op_info->type) {
|
| 764 |
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
| 765 |
|
|
|
| 766 |
|
|
case AML_TYPE_CREATE_FIELD:
|
| 767 |
|
|
|
| 768 |
|
|
/*
|
| 769 |
|
|
* Create the field object, but the field buffer and index must
|
| 770 |
|
|
* be evaluated later during the execution phase
|
| 771 |
|
|
*/
|
| 772 |
|
|
status = acpi_ds_create_buffer_field (op, walk_state);
|
| 773 |
|
|
break;
|
| 774 |
|
|
|
| 775 |
|
|
|
| 776 |
|
|
case AML_TYPE_NAMED_FIELD:
|
| 777 |
|
|
|
| 778 |
|
|
switch (op->common.aml_opcode) {
|
| 779 |
|
|
case AML_INDEX_FIELD_OP:
|
| 780 |
|
|
|
| 781 |
|
|
status = acpi_ds_create_index_field (op, (acpi_handle) arg->common.node,
|
| 782 |
|
|
walk_state);
|
| 783 |
|
|
break;
|
| 784 |
|
|
|
| 785 |
|
|
case AML_BANK_FIELD_OP:
|
| 786 |
|
|
|
| 787 |
|
|
status = acpi_ds_create_bank_field (op, arg->common.node, walk_state);
|
| 788 |
|
|
break;
|
| 789 |
|
|
|
| 790 |
|
|
case AML_FIELD_OP:
|
| 791 |
|
|
|
| 792 |
|
|
status = acpi_ds_create_field (op, arg->common.node, walk_state);
|
| 793 |
|
|
break;
|
| 794 |
|
|
|
| 795 |
|
|
default:
|
| 796 |
|
|
/* All NAMED_FIELD opcodes must be handled above */
|
| 797 |
|
|
break;
|
| 798 |
|
|
}
|
| 799 |
|
|
break;
|
| 800 |
|
|
|
| 801 |
|
|
|
| 802 |
|
|
case AML_TYPE_NAMED_SIMPLE:
|
| 803 |
|
|
|
| 804 |
|
|
status = acpi_ds_create_operands (walk_state, arg);
|
| 805 |
|
|
if (ACPI_FAILURE (status)) {
|
| 806 |
|
|
goto cleanup;
|
| 807 |
|
|
}
|
| 808 |
|
|
|
| 809 |
|
|
switch (op->common.aml_opcode) {
|
| 810 |
|
|
case AML_PROCESSOR_OP:
|
| 811 |
|
|
|
| 812 |
|
|
status = acpi_ex_create_processor (walk_state);
|
| 813 |
|
|
break;
|
| 814 |
|
|
|
| 815 |
|
|
case AML_POWER_RES_OP:
|
| 816 |
|
|
|
| 817 |
|
|
status = acpi_ex_create_power_resource (walk_state);
|
| 818 |
|
|
break;
|
| 819 |
|
|
|
| 820 |
|
|
case AML_MUTEX_OP:
|
| 821 |
|
|
|
| 822 |
|
|
status = acpi_ex_create_mutex (walk_state);
|
| 823 |
|
|
break;
|
| 824 |
|
|
|
| 825 |
|
|
case AML_EVENT_OP:
|
| 826 |
|
|
|
| 827 |
|
|
status = acpi_ex_create_event (walk_state);
|
| 828 |
|
|
break;
|
| 829 |
|
|
|
| 830 |
|
|
case AML_DATA_REGION_OP:
|
| 831 |
|
|
|
| 832 |
|
|
status = acpi_ex_create_table_region (walk_state);
|
| 833 |
|
|
break;
|
| 834 |
|
|
|
| 835 |
|
|
case AML_ALIAS_OP:
|
| 836 |
|
|
|
| 837 |
|
|
status = acpi_ex_create_alias (walk_state);
|
| 838 |
|
|
break;
|
| 839 |
|
|
|
| 840 |
|
|
default:
|
| 841 |
|
|
/* Unknown opcode */
|
| 842 |
|
|
|
| 843 |
|
|
status = AE_OK;
|
| 844 |
|
|
goto cleanup;
|
| 845 |
|
|
}
|
| 846 |
|
|
|
| 847 |
|
|
/* Delete operands */
|
| 848 |
|
|
|
| 849 |
|
|
for (i = 1; i < walk_state->num_operands; i++) {
|
| 850 |
|
|
acpi_ut_remove_reference (walk_state->operands[i]);
|
| 851 |
|
|
walk_state->operands[i] = NULL;
|
| 852 |
|
|
}
|
| 853 |
|
|
|
| 854 |
|
|
break;
|
| 855 |
|
|
#endif /* ACPI_NO_METHOD_EXECUTION */
|
| 856 |
|
|
|
| 857 |
|
|
case AML_TYPE_NAMED_COMPLEX:
|
| 858 |
|
|
|
| 859 |
|
|
switch (op->common.aml_opcode) {
|
| 860 |
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
| 861 |
|
|
case AML_REGION_OP:
|
| 862 |
|
|
/*
|
| 863 |
|
|
* The op_region is not fully parsed at this time. Only valid argument is the space_id.
|
| 864 |
|
|
* (We must save the address of the AML of the address and length operands)
|
| 865 |
|
|
*/
|
| 866 |
|
|
/*
|
| 867 |
|
|
* If we have a valid region, initialize it
|
| 868 |
|
|
* Namespace is NOT locked at this point.
|
| 869 |
|
|
*/
|
| 870 |
|
|
status = acpi_ev_initialize_region (acpi_ns_get_attached_object (node), FALSE);
|
| 871 |
|
|
if (ACPI_FAILURE (status)) {
|
| 872 |
|
|
/*
|
| 873 |
|
|
* If AE_NOT_EXIST is returned, it is not fatal
|
| 874 |
|
|
* because many regions get created before a handler
|
| 875 |
|
|
* is installed for said region.
|
| 876 |
|
|
*/
|
| 877 |
|
|
if (AE_NOT_EXIST == status) {
|
| 878 |
|
|
status = AE_OK;
|
| 879 |
|
|
}
|
| 880 |
|
|
}
|
| 881 |
|
|
break;
|
| 882 |
|
|
|
| 883 |
|
|
|
| 884 |
|
|
case AML_NAME_OP:
|
| 885 |
|
|
|
| 886 |
|
|
status = acpi_ds_create_node (walk_state, node, op);
|
| 887 |
|
|
break;
|
| 888 |
|
|
#endif /* ACPI_NO_METHOD_EXECUTION */
|
| 889 |
|
|
|
| 890 |
|
|
|
| 891 |
|
|
default:
|
| 892 |
|
|
/* All NAMED_COMPLEX opcodes must be handled above */
|
| 893 |
|
|
/* Note: Method objects were already created in Pass 1 */
|
| 894 |
|
|
break;
|
| 895 |
|
|
}
|
| 896 |
|
|
break;
|
| 897 |
|
|
|
| 898 |
|
|
|
| 899 |
|
|
case AML_CLASS_INTERNAL:
|
| 900 |
|
|
|
| 901 |
|
|
/* case AML_INT_NAMEPATH_OP: */
|
| 902 |
|
|
break;
|
| 903 |
|
|
|
| 904 |
|
|
|
| 905 |
|
|
case AML_CLASS_METHOD_CALL:
|
| 906 |
|
|
|
| 907 |
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
| 908 |
|
|
"RESOLVING-method_call: State=%p Op=%p named_obj=%p\n",
|
| 909 |
|
|
walk_state, op, node));
|
| 910 |
|
|
|
| 911 |
|
|
/*
|
| 912 |
|
|
* Lookup the method name and save the Node
|
| 913 |
|
|
*/
|
| 914 |
|
|
status = acpi_ns_lookup (walk_state->scope_info, arg->common.value.string,
|
| 915 |
|
|
ACPI_TYPE_ANY, ACPI_IMODE_LOAD_PASS2,
|
| 916 |
|
|
ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
|
| 917 |
|
|
walk_state, &(new_node));
|
| 918 |
|
|
if (ACPI_SUCCESS (status)) {
|
| 919 |
|
|
/*
|
| 920 |
|
|
* Make sure that what we found is indeed a method
|
| 921 |
|
|
* We didn't search for a method on purpose, to see if the name would resolve
|
| 922 |
|
|
*/
|
| 923 |
|
|
if (new_node->type != ACPI_TYPE_METHOD) {
|
| 924 |
|
|
status = AE_AML_OPERAND_TYPE;
|
| 925 |
|
|
}
|
| 926 |
|
|
|
| 927 |
|
|
/* We could put the returned object (Node) on the object stack for later, but
|
| 928 |
|
|
* for now, we will put it in the "op" object that the parser uses, so we
|
| 929 |
|
|
* can get it again at the end of this scope
|
| 930 |
|
|
*/
|
| 931 |
|
|
op->common.node = new_node;
|
| 932 |
|
|
}
|
| 933 |
|
|
else {
|
| 934 |
|
|
ACPI_REPORT_NSERROR (arg->common.value.string, status);
|
| 935 |
|
|
}
|
| 936 |
|
|
break;
|
| 937 |
|
|
|
| 938 |
|
|
|
| 939 |
|
|
default:
|
| 940 |
|
|
break;
|
| 941 |
|
|
}
|
| 942 |
|
|
|
| 943 |
|
|
cleanup:
|
| 944 |
|
|
|
| 945 |
|
|
/* Remove the Node pushed at the very beginning */
|
| 946 |
|
|
|
| 947 |
|
|
walk_state->operands[0] = NULL;
|
| 948 |
|
|
walk_state->num_operands = 0;
|
| 949 |
|
|
return_ACPI_STATUS (status);
|
| 950 |
|
|
}
|
| 951 |
|
|
|
| 952 |
|
|
|
