2003-08-07 16:38:31 +00:00
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/******************************************************************************
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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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2011-01-13 16:12:34 +00:00
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/*
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2013-01-17 21:32:03 +00:00
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* Copyright (C) 2000 - 2013, Intel Corp.
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2003-08-07 16:38:31 +00:00
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* All rights reserved.
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*
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2011-01-13 16:12:34 +00:00
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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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2003-08-07 16:38:31 +00:00
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#define __ASLLOAD_C__
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2009-06-01 19:24:26 +00:00
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#include "aslcompiler.h"
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#include "amlcode.h"
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#include "acdispat.h"
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#include "acnamesp.h"
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2003-08-07 16:38:31 +00:00
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#include "aslcompiler.y.h"
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#define _COMPONENT ACPI_COMPILER
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ACPI_MODULE_NAME ("aslload")
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2005-11-01 22:11:18 +00:00
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/* Local prototypes */
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static ACPI_STATUS
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LdLoadFieldElements (
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ACPI_PARSE_OBJECT *Op,
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ACPI_WALK_STATE *WalkState);
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static ACPI_STATUS
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LdLoadResourceElements (
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ACPI_PARSE_OBJECT *Op,
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ACPI_WALK_STATE *WalkState);
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static ACPI_STATUS
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LdNamespace1Begin (
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ACPI_PARSE_OBJECT *Op,
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UINT32 Level,
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void *Context);
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static ACPI_STATUS
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2009-06-01 21:02:40 +00:00
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LdNamespace2Begin (
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ACPI_PARSE_OBJECT *Op,
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UINT32 Level,
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void *Context);
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static ACPI_STATUS
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LdCommonNamespaceEnd (
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2005-11-01 22:11:18 +00:00
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ACPI_PARSE_OBJECT *Op,
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UINT32 Level,
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void *Context);
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2003-08-07 16:38:31 +00:00
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/*******************************************************************************
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*
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* FUNCTION: LdLoadNamespace
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*
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2005-11-01 22:11:18 +00:00
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* PARAMETERS: RootOp - Root of the parse tree
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2003-08-07 16:38:31 +00:00
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*
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* RETURN: Status
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*
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* DESCRIPTION: Perform a walk of the parse tree that in turn loads all of the
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2009-06-01 21:02:40 +00:00
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* named ASL/AML objects into the namespace. The namespace is
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2003-08-07 16:38:31 +00:00
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* constructed in order to resolve named references and references
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* to named fields within resource templates/descriptors.
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*
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******************************************************************************/
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ACPI_STATUS
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LdLoadNamespace (
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ACPI_PARSE_OBJECT *RootOp)
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{
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ACPI_WALK_STATE *WalkState;
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DbgPrint (ASL_DEBUG_OUTPUT, "\nCreating namespace\n\n");
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/* Create a new walk state */
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WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
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if (!WalkState)
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{
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2012-10-19 18:47:57 +00:00
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return (AE_NO_MEMORY);
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2003-08-07 16:38:31 +00:00
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}
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2009-06-01 21:02:40 +00:00
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/* Walk the entire parse tree, first pass */
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2003-08-07 16:38:31 +00:00
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TrWalkParseTree (RootOp, ASL_WALK_VISIT_TWICE, LdNamespace1Begin,
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2009-06-01 21:02:40 +00:00
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LdCommonNamespaceEnd, WalkState);
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/* Second pass to handle forward references */
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TrWalkParseTree (RootOp, ASL_WALK_VISIT_TWICE, LdNamespace2Begin,
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LdCommonNamespaceEnd, WalkState);
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2003-08-07 16:38:31 +00:00
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/* Dump the namespace if debug is enabled */
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AcpiNsDumpTables (ACPI_NS_ALL, ACPI_UINT32_MAX);
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2012-10-19 18:47:57 +00:00
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return (AE_OK);
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2003-08-07 16:38:31 +00:00
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}
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/*******************************************************************************
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*
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* FUNCTION: LdLoadFieldElements
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*
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2005-11-01 22:11:18 +00:00
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* PARAMETERS: Op - Parent node (Field)
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2003-08-07 16:38:31 +00:00
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* WalkState - Current walk state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Enter the named elements of the field (children of the parent)
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* into the namespace.
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*
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******************************************************************************/
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2005-11-01 22:11:18 +00:00
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static ACPI_STATUS
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2003-08-07 16:38:31 +00:00
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LdLoadFieldElements (
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ACPI_PARSE_OBJECT *Op,
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_PARSE_OBJECT *Child = NULL;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_STATUS Status;
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/* Get the first named field element */
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switch (Op->Asl.AmlOpcode)
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{
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case AML_BANK_FIELD_OP:
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Child = UtGetArg (Op, 6);
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break;
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case AML_INDEX_FIELD_OP:
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Child = UtGetArg (Op, 5);
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break;
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case AML_FIELD_OP:
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Child = UtGetArg (Op, 4);
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break;
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default:
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2013-05-17 23:13:40 +00:00
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2003-08-07 16:38:31 +00:00
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/* No other opcodes should arrive here */
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2013-05-17 23:13:40 +00:00
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2003-08-07 16:38:31 +00:00
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return (AE_BAD_PARAMETER);
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}
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/* Enter all elements into the namespace */
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while (Child)
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{
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switch (Child->Asl.AmlOpcode)
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{
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case AML_INT_RESERVEDFIELD_OP:
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case AML_INT_ACCESSFIELD_OP:
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2011-11-23 18:05:37 +00:00
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case AML_INT_CONNECTION_OP:
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2003-08-07 16:38:31 +00:00
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break;
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default:
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2005-11-01 22:11:18 +00:00
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Status = AcpiNsLookup (WalkState->ScopeInfo,
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Child->Asl.Value.String,
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ACPI_TYPE_LOCAL_REGION_FIELD,
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ACPI_IMODE_LOAD_PASS1,
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ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE |
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ACPI_NS_ERROR_IF_FOUND,
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NULL, &Node);
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2003-08-07 16:38:31 +00:00
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if (ACPI_FAILURE (Status))
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{
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if (Status != AE_ALREADY_EXISTS)
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{
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2005-11-01 22:11:18 +00:00
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AslError (ASL_ERROR, ASL_MSG_CORE_EXCEPTION, Child,
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Child->Asl.Value.String);
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return (Status);
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2003-08-07 16:38:31 +00:00
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}
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/*
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* The name already exists in this scope
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* But continue processing the elements
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*/
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2005-11-01 22:11:18 +00:00
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AslError (ASL_ERROR, ASL_MSG_NAME_EXISTS, Child,
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Child->Asl.Value.String);
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2003-08-07 16:38:31 +00:00
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}
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else
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{
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Child->Asl.Node = Node;
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2005-11-01 22:11:18 +00:00
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Node->Op = Child;
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2003-08-07 16:38:31 +00:00
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}
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break;
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}
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2011-11-23 18:05:37 +00:00
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2003-08-07 16:38:31 +00:00
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Child = Child->Asl.Next;
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}
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2011-11-23 18:05:37 +00:00
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2003-08-07 16:38:31 +00:00
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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: LdLoadResourceElements
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*
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2005-11-01 22:11:18 +00:00
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* PARAMETERS: Op - Parent node (Resource Descriptor)
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2003-08-07 16:38:31 +00:00
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* WalkState - Current walk state
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*
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* RETURN: Status
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*
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* DESCRIPTION: Enter the named elements of the resource descriptor (children
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* of the parent) into the namespace.
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*
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2009-06-01 21:02:40 +00:00
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* NOTE: In the real AML namespace, these named elements never exist. But
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2003-08-07 16:38:31 +00:00
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* we simply use the namespace here as a symbol table so we can look
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* them up as they are referenced.
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*
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******************************************************************************/
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2005-11-01 22:11:18 +00:00
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static ACPI_STATUS
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2003-08-07 16:38:31 +00:00
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LdLoadResourceElements (
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ACPI_PARSE_OBJECT *Op,
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_PARSE_OBJECT *InitializerOp = NULL;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_STATUS Status;
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/*
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2005-11-01 22:11:18 +00:00
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* Enter the resource name into the namespace. Name must not already exist.
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* This opens a scope, so later field names are guaranteed to be new/unique.
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2003-08-07 16:38:31 +00:00
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*/
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Status = AcpiNsLookup (WalkState->ScopeInfo, Op->Asl.Namepath,
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2005-11-01 22:11:18 +00:00
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ACPI_TYPE_LOCAL_RESOURCE, ACPI_IMODE_LOAD_PASS1,
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ACPI_NS_NO_UPSEARCH | ACPI_NS_ERROR_IF_FOUND,
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WalkState, &Node);
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2003-08-07 16:38:31 +00:00
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if (ACPI_FAILURE (Status))
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{
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2005-11-01 22:11:18 +00:00
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if (Status == AE_ALREADY_EXISTS)
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{
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/* Actual node causing the error was saved in ParentMethod */
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AslError (ASL_ERROR, ASL_MSG_NAME_EXISTS,
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(ACPI_PARSE_OBJECT *) Op->Asl.ParentMethod, Op->Asl.Namepath);
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return (AE_OK);
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}
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2003-08-07 16:38:31 +00:00
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return (Status);
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}
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2007-03-22 17:24:05 +00:00
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Node->Value = (UINT32) Op->Asl.Value.Integer;
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Node->Op = Op;
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2009-09-04 01:21:44 +00:00
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Op->Asl.Node = Node;
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2007-03-22 17:24:05 +00:00
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2003-08-07 16:38:31 +00:00
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/*
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* Now enter the predefined fields, for easy lookup when referenced
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* by the source ASL
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*/
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InitializerOp = ASL_GET_CHILD_NODE (Op);
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while (InitializerOp)
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{
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if (InitializerOp->Asl.ExternalName)
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{
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Status = AcpiNsLookup (WalkState->ScopeInfo,
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2005-11-01 22:11:18 +00:00
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InitializerOp->Asl.ExternalName,
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ACPI_TYPE_LOCAL_RESOURCE_FIELD,
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ACPI_IMODE_LOAD_PASS1,
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ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE,
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NULL, &Node);
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2003-08-07 16:38:31 +00:00
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if (ACPI_FAILURE (Status))
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{
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return (Status);
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}
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/*
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2011-09-26 21:40:21 +00:00
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* Store the field offset and length in the namespace node
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* so it can be used when the field is referenced
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2003-08-07 16:38:31 +00:00
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*/
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2011-09-26 21:40:21 +00:00
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Node->Value = InitializerOp->Asl.Value.Tag.BitOffset;
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Node->Length = InitializerOp->Asl.Value.Tag.BitLength;
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2003-08-07 16:38:31 +00:00
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InitializerOp->Asl.Node = Node;
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2005-11-01 22:11:18 +00:00
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Node->Op = InitializerOp;
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2003-08-07 16:38:31 +00:00
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}
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2011-09-26 21:40:21 +00:00
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2003-08-07 16:38:31 +00:00
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InitializerOp = ASL_GET_PEER_NODE (InitializerOp);
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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: LdNamespace1Begin
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*
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* PARAMETERS: ASL_WALK_CALLBACK
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*
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* RETURN: Status
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*
|
2009-06-01 21:02:40 +00:00
|
|
|
* DESCRIPTION: Descending callback used during the parse tree walk. If this
|
2003-08-07 16:38:31 +00:00
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|
* is a named AML opcode, enter into the namespace
|
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*
|
|
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|
******************************************************************************/
|
|
|
|
|
2005-11-01 22:11:18 +00:00
|
|
|
static ACPI_STATUS
|
2003-08-07 16:38:31 +00:00
|
|
|
LdNamespace1Begin (
|
|
|
|
ACPI_PARSE_OBJECT *Op,
|
|
|
|
UINT32 Level,
|
|
|
|
void *Context)
|
|
|
|
{
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|
|
|
ACPI_WALK_STATE *WalkState = (ACPI_WALK_STATE *) Context;
|
|
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
|
|
ACPI_STATUS Status;
|
|
|
|
ACPI_OBJECT_TYPE ObjectType;
|
|
|
|
ACPI_OBJECT_TYPE ActualObjectType = ACPI_TYPE_ANY;
|
|
|
|
char *Path;
|
|
|
|
UINT32 Flags = ACPI_NS_NO_UPSEARCH;
|
|
|
|
ACPI_PARSE_OBJECT *Arg;
|
|
|
|
UINT32 i;
|
2007-03-22 17:24:05 +00:00
|
|
|
BOOLEAN ForceNewScope = FALSE;
|
2003-08-07 16:38:31 +00:00
|
|
|
|
|
|
|
|
2007-03-22 17:24:05 +00:00
|
|
|
ACPI_FUNCTION_NAME (LdNamespace1Begin);
|
2003-08-07 16:38:31 +00:00
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op %p [%s]\n",
|
|
|
|
Op, Op->Asl.ParseOpName));
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* We are only interested in opcodes that have an associated name
|
|
|
|
* (or multiple names)
|
|
|
|
*/
|
|
|
|
switch (Op->Asl.AmlOpcode)
|
|
|
|
{
|
|
|
|
case AML_BANK_FIELD_OP:
|
|
|
|
case AML_INDEX_FIELD_OP:
|
|
|
|
case AML_FIELD_OP:
|
|
|
|
|
|
|
|
Status = LdLoadFieldElements (Op, WalkState);
|
|
|
|
return (Status);
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
|
|
|
/* All other opcodes go below */
|
2013-05-17 23:13:40 +00:00
|
|
|
|
2003-08-07 16:38:31 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Check if this object has already been installed in the namespace */
|
|
|
|
|
|
|
|
if (Op->Asl.Node)
|
|
|
|
{
|
|
|
|
return (AE_OK);
|
|
|
|
}
|
|
|
|
|
|
|
|
Path = Op->Asl.Namepath;
|
|
|
|
if (!Path)
|
|
|
|
{
|
|
|
|
return (AE_OK);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Map the raw opcode into an internal object type */
|
|
|
|
|
|
|
|
switch (Op->Asl.ParseOpcode)
|
|
|
|
{
|
|
|
|
case PARSEOP_NAME:
|
|
|
|
|
2005-11-01 22:11:18 +00:00
|
|
|
Arg = Op->Asl.Child; /* Get the NameSeg/NameString node */
|
|
|
|
Arg = Arg->Asl.Next; /* First peer is the object to be associated with the name */
|
2003-08-07 16:38:31 +00:00
|
|
|
|
2007-03-22 17:24:05 +00:00
|
|
|
/*
|
|
|
|
* If this name refers to a ResourceTemplate, we will need to open
|
|
|
|
* a new scope so that the resource subfield names can be entered into
|
|
|
|
* the namespace underneath this name
|
|
|
|
*/
|
|
|
|
if (Op->Asl.CompileFlags & NODE_IS_RESOURCE_DESC)
|
|
|
|
{
|
|
|
|
ForceNewScope = TRUE;
|
|
|
|
}
|
|
|
|
|
2003-08-07 16:38:31 +00:00
|
|
|
/* Get the data type associated with the named object, not the name itself */
|
|
|
|
|
|
|
|
/* Log2 loop to convert from Btype (binary) to Etype (encoded) */
|
|
|
|
|
|
|
|
ObjectType = 1;
|
|
|
|
for (i = 1; i < Arg->Asl.AcpiBtype; i *= 2)
|
|
|
|
{
|
|
|
|
ObjectType++;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
|
|
case PARSEOP_EXTERNAL:
|
|
|
|
/*
|
|
|
|
* "External" simply enters a name and type into the namespace.
|
|
|
|
* We must be careful to not open a new scope, however, no matter
|
|
|
|
* what type the external name refers to (e.g., a method)
|
|
|
|
*
|
|
|
|
* first child is name, next child is ObjectType
|
|
|
|
*/
|
|
|
|
ActualObjectType = (UINT8) Op->Asl.Child->Asl.Next->Asl.Value.Integer;
|
|
|
|
ObjectType = ACPI_TYPE_ANY;
|
|
|
|
|
2007-03-22 17:24:05 +00:00
|
|
|
/*
|
|
|
|
* We will mark every new node along the path as "External". This
|
|
|
|
* allows some or all of the nodes to be created later in the ASL
|
|
|
|
* code. Handles cases like this:
|
|
|
|
*
|
|
|
|
* External (\_SB_.PCI0.ABCD, IntObj)
|
|
|
|
* Scope (_SB_)
|
|
|
|
* {
|
|
|
|
* Device (PCI0)
|
|
|
|
* {
|
|
|
|
* }
|
|
|
|
* }
|
|
|
|
* Method (X)
|
|
|
|
* {
|
|
|
|
* Store (\_SB_.PCI0.ABCD, Local0)
|
|
|
|
* }
|
|
|
|
*/
|
|
|
|
Flags |= ACPI_NS_EXTERNAL;
|
|
|
|
break;
|
2003-08-07 16:38:31 +00:00
|
|
|
|
|
|
|
case PARSEOP_DEFAULT_ARG:
|
|
|
|
|
2007-03-22 17:24:05 +00:00
|
|
|
if (Op->Asl.CompileFlags == NODE_IS_RESOURCE_DESC)
|
2003-08-07 16:38:31 +00:00
|
|
|
{
|
|
|
|
Status = LdLoadResourceElements (Op, WalkState);
|
2010-01-21 20:56:18 +00:00
|
|
|
return_ACPI_STATUS (Status);
|
2003-08-07 16:38:31 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode);
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
|
|
case PARSEOP_SCOPE:
|
|
|
|
/*
|
|
|
|
* The name referenced by Scope(Name) must already exist at this point.
|
|
|
|
* In other words, forward references for Scope() are not supported.
|
|
|
|
* The only real reason for this is that the MS interpreter cannot
|
2009-06-01 21:02:40 +00:00
|
|
|
* handle this case. Perhaps someday this case can go away.
|
2003-08-07 16:38:31 +00:00
|
|
|
*/
|
|
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ACPI_TYPE_ANY,
|
2005-11-01 22:11:18 +00:00
|
|
|
ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
|
|
|
|
WalkState, &(Node));
|
2003-08-07 16:38:31 +00:00
|
|
|
if (ACPI_FAILURE (Status))
|
|
|
|
{
|
|
|
|
if (Status == AE_NOT_FOUND)
|
|
|
|
{
|
|
|
|
/* The name was not found, go ahead and create it */
|
|
|
|
|
2005-11-01 22:11:18 +00:00
|
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, Path,
|
|
|
|
ACPI_TYPE_LOCAL_SCOPE,
|
|
|
|
ACPI_IMODE_LOAD_PASS1, Flags,
|
|
|
|
WalkState, &(Node));
|
2003-08-07 16:38:31 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* However, this is an error -- primarily because the MS
|
|
|
|
* interpreter can't handle a forward reference from the
|
|
|
|
* Scope() operator.
|
|
|
|
*/
|
2005-11-01 22:11:18 +00:00
|
|
|
AslError (ASL_ERROR, ASL_MSG_NOT_FOUND, Op,
|
|
|
|
Op->Asl.ExternalName);
|
|
|
|
AslError (ASL_ERROR, ASL_MSG_SCOPE_FWD_REF, Op,
|
|
|
|
Op->Asl.ExternalName);
|
2003-08-07 16:38:31 +00:00
|
|
|
goto FinishNode;
|
|
|
|
}
|
|
|
|
|
2009-10-13 21:27:35 +00:00
|
|
|
AslCoreSubsystemError (Op, Status,
|
|
|
|
"Failure from namespace lookup", FALSE);
|
|
|
|
|
2010-01-21 20:56:18 +00:00
|
|
|
return_ACPI_STATUS (Status);
|
2003-08-07 16:38:31 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* We found a node with this name, now check the type */
|
|
|
|
|
|
|
|
switch (Node->Type)
|
|
|
|
{
|
|
|
|
case ACPI_TYPE_LOCAL_SCOPE:
|
|
|
|
case ACPI_TYPE_DEVICE:
|
|
|
|
case ACPI_TYPE_POWER:
|
|
|
|
case ACPI_TYPE_PROCESSOR:
|
|
|
|
case ACPI_TYPE_THERMAL:
|
|
|
|
|
|
|
|
/* These are acceptable types - they all open a new scope */
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ACPI_TYPE_INTEGER:
|
|
|
|
case ACPI_TYPE_STRING:
|
|
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
/*
|
2005-11-01 22:11:18 +00:00
|
|
|
* These types we will allow, but we will change the type.
|
|
|
|
* This enables some existing code of the form:
|
2003-08-07 16:38:31 +00:00
|
|
|
*
|
|
|
|
* Name (DEB, 0)
|
|
|
|
* Scope (DEB) { ... }
|
|
|
|
*
|
|
|
|
* Which is used to workaround the fact that the MS interpreter
|
|
|
|
* does not allow Scope() forward references.
|
|
|
|
*/
|
2004-04-14 02:10:27 +00:00
|
|
|
sprintf (MsgBuffer, "%s [%s], changing type to [Scope]",
|
2003-08-07 16:38:31 +00:00
|
|
|
Op->Asl.ExternalName, AcpiUtGetTypeName (Node->Type));
|
|
|
|
AslError (ASL_REMARK, ASL_MSG_SCOPE_TYPE, Op, MsgBuffer);
|
|
|
|
|
2005-11-01 22:11:18 +00:00
|
|
|
/* Switch the type to scope, open the new scope */
|
|
|
|
|
2004-04-14 02:10:27 +00:00
|
|
|
Node->Type = ACPI_TYPE_LOCAL_SCOPE;
|
2005-11-01 22:11:18 +00:00
|
|
|
Status = AcpiDsScopeStackPush (Node, ACPI_TYPE_LOCAL_SCOPE,
|
|
|
|
WalkState);
|
2004-04-14 02:10:27 +00:00
|
|
|
if (ACPI_FAILURE (Status))
|
|
|
|
{
|
|
|
|
return_ACPI_STATUS (Status);
|
|
|
|
}
|
2003-08-07 16:38:31 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
2005-11-01 22:11:18 +00:00
|
|
|
/* All other types are an error */
|
|
|
|
|
|
|
|
sprintf (MsgBuffer, "%s [%s]", Op->Asl.ExternalName,
|
|
|
|
AcpiUtGetTypeName (Node->Type));
|
2003-08-07 16:38:31 +00:00
|
|
|
AslError (ASL_ERROR, ASL_MSG_SCOPE_TYPE, Op, MsgBuffer);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* However, switch the type to be an actual scope so
|
|
|
|
* that compilation can continue without generating a whole
|
2009-06-01 21:02:40 +00:00
|
|
|
* cascade of additional errors. Open the new scope.
|
2003-08-07 16:38:31 +00:00
|
|
|
*/
|
2004-04-14 02:10:27 +00:00
|
|
|
Node->Type = ACPI_TYPE_LOCAL_SCOPE;
|
2005-11-01 22:11:18 +00:00
|
|
|
Status = AcpiDsScopeStackPush (Node, ACPI_TYPE_LOCAL_SCOPE,
|
|
|
|
WalkState);
|
2004-04-14 02:10:27 +00:00
|
|
|
if (ACPI_FAILURE (Status))
|
|
|
|
{
|
|
|
|
return_ACPI_STATUS (Status);
|
|
|
|
}
|
2003-08-07 16:38:31 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
Status = AE_OK;
|
|
|
|
goto FinishNode;
|
|
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
|
|
|
ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Loading name: %s, (%s)\n",
|
|
|
|
Op->Asl.ExternalName, AcpiUtGetTypeName (ObjectType)));
|
|
|
|
|
|
|
|
/* The name must not already exist */
|
|
|
|
|
|
|
|
Flags |= ACPI_NS_ERROR_IF_FOUND;
|
|
|
|
|
|
|
|
/*
|
2009-06-01 21:02:40 +00:00
|
|
|
* Enter the named type into the internal namespace. We enter the name
|
|
|
|
* as we go downward in the parse tree. Any necessary subobjects that
|
2005-11-01 22:11:18 +00:00
|
|
|
* involve arguments to the opcode must be created as we go back up the
|
|
|
|
* parse tree later.
|
2003-08-07 16:38:31 +00:00
|
|
|
*/
|
|
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType,
|
2007-03-22 17:24:05 +00:00
|
|
|
ACPI_IMODE_LOAD_PASS1, Flags, WalkState, &Node);
|
2003-08-07 16:38:31 +00:00
|
|
|
if (ACPI_FAILURE (Status))
|
|
|
|
{
|
|
|
|
if (Status == AE_ALREADY_EXISTS)
|
|
|
|
{
|
|
|
|
/* The name already exists in this scope */
|
|
|
|
|
|
|
|
if (Node->Type == ACPI_TYPE_LOCAL_SCOPE)
|
|
|
|
{
|
2007-03-22 17:24:05 +00:00
|
|
|
/* Allow multiple references to the same scope */
|
|
|
|
|
2003-08-07 16:38:31 +00:00
|
|
|
Node->Type = (UINT8) ObjectType;
|
|
|
|
Status = AE_OK;
|
|
|
|
}
|
2009-06-01 21:02:40 +00:00
|
|
|
else if ((Node->Flags & ANOBJ_IS_EXTERNAL) &&
|
|
|
|
(Op->Asl.ParseOpcode != PARSEOP_EXTERNAL))
|
2007-03-22 17:24:05 +00:00
|
|
|
{
|
|
|
|
/*
|
|
|
|
* Allow one create on an object or segment that was
|
|
|
|
* previously declared External
|
|
|
|
*/
|
|
|
|
Node->Flags &= ~ANOBJ_IS_EXTERNAL;
|
|
|
|
Node->Type = (UINT8) ObjectType;
|
|
|
|
|
|
|
|
/* Just retyped a node, probably will need to open a scope */
|
|
|
|
|
|
|
|
if (AcpiNsOpensScope (ObjectType))
|
|
|
|
{
|
|
|
|
Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
|
|
{
|
|
|
|
return_ACPI_STATUS (Status);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
Status = AE_OK;
|
|
|
|
}
|
2003-08-07 16:38:31 +00:00
|
|
|
else
|
|
|
|
{
|
2007-03-22 17:24:05 +00:00
|
|
|
/* Valid error, object already exists */
|
|
|
|
|
2005-11-01 22:11:18 +00:00
|
|
|
AslError (ASL_ERROR, ASL_MSG_NAME_EXISTS, Op,
|
|
|
|
Op->Asl.ExternalName);
|
2010-01-21 20:56:18 +00:00
|
|
|
return_ACPI_STATUS (AE_OK);
|
2003-08-07 16:38:31 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2005-11-01 22:11:18 +00:00
|
|
|
AslCoreSubsystemError (Op, Status,
|
2009-10-13 21:27:35 +00:00
|
|
|
"Failure from namespace lookup", FALSE);
|
2010-01-21 20:56:18 +00:00
|
|
|
return_ACPI_STATUS (Status);
|
2003-08-07 16:38:31 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-03-22 17:24:05 +00:00
|
|
|
if (ForceNewScope)
|
|
|
|
{
|
|
|
|
Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
|
|
{
|
|
|
|
return_ACPI_STATUS (Status);
|
|
|
|
}
|
|
|
|
}
|
2003-08-07 16:38:31 +00:00
|
|
|
|
|
|
|
FinishNode:
|
|
|
|
/*
|
|
|
|
* Point the parse node to the new namespace node, and point
|
|
|
|
* the Node back to the original Parse node
|
|
|
|
*/
|
|
|
|
Op->Asl.Node = Node;
|
2005-11-01 22:11:18 +00:00
|
|
|
Node->Op = Op;
|
2003-08-07 16:38:31 +00:00
|
|
|
|
|
|
|
/* Set the actual data type if appropriate (EXTERNAL term only) */
|
|
|
|
|
|
|
|
if (ActualObjectType != ACPI_TYPE_ANY)
|
|
|
|
{
|
|
|
|
Node->Type = (UINT8) ActualObjectType;
|
2005-11-01 22:11:18 +00:00
|
|
|
Node->Value = ASL_EXTERNAL_METHOD;
|
2003-08-07 16:38:31 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if (Op->Asl.ParseOpcode == PARSEOP_METHOD)
|
|
|
|
{
|
|
|
|
/*
|
2005-11-01 22:11:18 +00:00
|
|
|
* Get the method argument count from "Extra" and save
|
|
|
|
* it in the namespace node
|
2003-08-07 16:38:31 +00:00
|
|
|
*/
|
2005-11-01 22:11:18 +00:00
|
|
|
Node->Value = (UINT32) Op->Asl.Extra;
|
2003-08-07 16:38:31 +00:00
|
|
|
}
|
|
|
|
|
2010-01-21 20:56:18 +00:00
|
|
|
return_ACPI_STATUS (Status);
|
2003-08-07 16:38:31 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*******************************************************************************
|
|
|
|
*
|
2009-06-01 21:02:40 +00:00
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* FUNCTION: LdNamespace2Begin
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*
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* PARAMETERS: ASL_WALK_CALLBACK
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*
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* RETURN: Status
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*
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* DESCRIPTION: Descending callback used during the pass 2 parse tree walk.
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* Second pass resolves some forward references.
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*
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* Notes:
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* Currently only needs to handle the Alias operator.
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* Could be used to allow forward references from the Scope() operator, but
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* the MS interpreter does not allow this, so this compiler does not either.
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*
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******************************************************************************/
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static ACPI_STATUS
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LdNamespace2Begin (
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ACPI_PARSE_OBJECT *Op,
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UINT32 Level,
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void *Context)
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{
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ACPI_WALK_STATE *WalkState = (ACPI_WALK_STATE *) Context;
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ACPI_STATUS Status;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_OBJECT_TYPE ObjectType;
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BOOLEAN ForceNewScope = FALSE;
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ACPI_PARSE_OBJECT *Arg;
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char *Path;
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ACPI_NAMESPACE_NODE *TargetNode;
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ACPI_FUNCTION_NAME (LdNamespace2Begin);
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ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op %p [%s]\n",
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Op, Op->Asl.ParseOpName));
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/* Ignore Ops with no namespace node */
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Node = Op->Asl.Node;
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if (!Node)
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{
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return (AE_OK);
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}
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/* Get the type to determine if we should push the scope */
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if ((Op->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG) &&
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(Op->Asl.CompileFlags == NODE_IS_RESOURCE_DESC))
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{
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ObjectType = ACPI_TYPE_LOCAL_RESOURCE;
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}
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else
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{
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ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode);
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}
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/* Push scope for Resource Templates */
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if (Op->Asl.ParseOpcode == PARSEOP_NAME)
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{
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if (Op->Asl.CompileFlags & NODE_IS_RESOURCE_DESC)
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{
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ForceNewScope = TRUE;
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}
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}
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/* Push the scope stack */
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if (ForceNewScope || AcpiNsOpensScope (ObjectType))
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{
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Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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}
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if (Op->Asl.ParseOpcode == PARSEOP_ALIAS)
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{
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/* Complete the alias node by getting and saving the target node */
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/* First child is the alias target */
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Arg = Op->Asl.Child;
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/* Get the target pathname */
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Path = Arg->Asl.Namepath;
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if (!Path)
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{
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Status = UtInternalizeName (Arg->Asl.ExternalName, &Path);
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if (ACPI_FAILURE (Status))
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{
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return (Status);
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}
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}
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/* Get the NS node associated with the target. It must exist. */
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Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ACPI_TYPE_ANY,
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ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
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WalkState, &TargetNode);
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if (ACPI_FAILURE (Status))
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{
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if (Status == AE_NOT_FOUND)
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{
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AslError (ASL_ERROR, ASL_MSG_NOT_FOUND, Op,
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Op->Asl.ExternalName);
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/*
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* The name was not found, go ahead and create it.
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* This prevents more errors later.
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*/
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Status = AcpiNsLookup (WalkState->ScopeInfo, Path,
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ACPI_TYPE_ANY,
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ACPI_IMODE_LOAD_PASS1, ACPI_NS_NO_UPSEARCH,
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WalkState, &(Node));
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return (AE_OK);
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}
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2009-10-13 21:27:35 +00:00
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AslCoreSubsystemError (Op, Status,
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"Failure from namespace lookup", FALSE);
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2009-06-01 21:02:40 +00:00
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return (AE_OK);
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}
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/* Save the target node within the alias node */
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Node->Object = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, TargetNode);
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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: LdCommonNamespaceEnd
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2003-08-07 16:38:31 +00:00
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*
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* PARAMETERS: ASL_WALK_CALLBACK
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*
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* RETURN: Status
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*
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* DESCRIPTION: Ascending callback used during the loading of the namespace,
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* We only need to worry about managing the scope stack here.
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*
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******************************************************************************/
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2005-11-01 22:11:18 +00:00
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static ACPI_STATUS
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2009-06-01 21:02:40 +00:00
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LdCommonNamespaceEnd (
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2003-08-07 16:38:31 +00:00
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ACPI_PARSE_OBJECT *Op,
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UINT32 Level,
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void *Context)
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{
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ACPI_WALK_STATE *WalkState = (ACPI_WALK_STATE *) Context;
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ACPI_OBJECT_TYPE ObjectType;
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2007-03-22 17:24:05 +00:00
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BOOLEAN ForceNewScope = FALSE;
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2003-08-07 16:38:31 +00:00
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2009-06-01 21:02:40 +00:00
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ACPI_FUNCTION_NAME (LdCommonNamespaceEnd);
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2003-08-07 16:38:31 +00:00
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/* We are only interested in opcodes that have an associated name */
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if (!Op->Asl.Namepath)
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{
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return (AE_OK);
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}
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/* Get the type to determine if we should pop the scope */
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if ((Op->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG) &&
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(Op->Asl.CompileFlags == NODE_IS_RESOURCE_DESC))
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{
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/* TBD: Merge into AcpiDsMapNamedOpcodeToDataType */
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ObjectType = ACPI_TYPE_LOCAL_RESOURCE;
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}
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else
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{
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ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode);
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}
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2007-03-22 17:24:05 +00:00
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/* Pop scope that was pushed for Resource Templates */
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if (Op->Asl.ParseOpcode == PARSEOP_NAME)
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{
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if (Op->Asl.CompileFlags & NODE_IS_RESOURCE_DESC)
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{
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ForceNewScope = TRUE;
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}
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}
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2003-08-07 16:38:31 +00:00
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/* Pop the scope stack */
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2007-03-22 17:24:05 +00:00
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if (ForceNewScope || AcpiNsOpensScope (ObjectType))
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2003-08-07 16:38:31 +00:00
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{
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ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
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"(%s): Popping scope for Op [%s] %p\n",
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AcpiUtGetTypeName (ObjectType), Op->Asl.ParseOpName, Op));
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2005-11-01 22:11:18 +00:00
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(void) AcpiDsScopeStackPop (WalkState);
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2003-08-07 16:38:31 +00:00
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}
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return (AE_OK);
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}
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