dswload.c revision ae115bc77f6fcde83175c75b4206dc2e50747966
/******************************************************************************
*
* Module Name: dswload - Dispatcher namespace load callbacks
* $Revision: 1.112 $
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2006, Intel Corp.
* All rights reserved.
*
* 2. License
*
* 2.1. This is your license from Intel Corp. under its intellectual property
* rights. You may have additional license terms from the party that provided
* you this software, covering your right to use that party's intellectual
* property rights.
*
* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
* copy of the source code appearing in this file ("Covered Code") an
* irrevocable, perpetual, worldwide license under Intel's copyrights in the
* base code distributed originally by Intel ("Original Intel Code") to copy,
* make derivatives, distribute, use and display any portion of the Covered
* Code in any form, with the right to sublicense such rights; and
*
* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
* license (with the right to sublicense), under only those claims of Intel
* patents that are infringed by the Original Intel Code, to make, use, sell,
* offer to sell, and import the Covered Code and derivative works thereof
* solely to the minimum extent necessary to exercise the above copyright
* license, and in no event shall the patent license extend to any additions
* to or modifications of the Original Intel Code. No other license or right
* is granted directly or by implication, estoppel or otherwise;
*
* The above copyright and patent license is granted only if the following
* conditions are met:
*
* 3. Conditions
*
* 3.1. Redistribution of Source with Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification with rights to further distribute source must include
* the above Copyright Notice, the above License, this list of Conditions,
* and the following Disclaimer and Export Compliance provision. In addition,
* Licensee must cause all Covered Code to which Licensee contributes to
* contain a file documenting the changes Licensee made to create that Covered
* Code and the date of any change. Licensee must include in that file the
* documentation of any changes made by any predecessor Licensee. Licensee
* must include a prominent statement that the modification is derived,
* directly or indirectly, from Original Intel Code.
*
* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification without rights to further distribute source must
* include the following Disclaimer and Export Compliance provision in the
* addition, Licensee may not authorize further sublicense of source of any
* portion of the Covered Code, and must include terms to the effect that the
* license from Licensee to its licensee is limited to the intellectual
* property embodied in the software Licensee provides to its licensee, and
* not to intellectual property embodied in modifications its licensee may
* make.
*
* 3.3. Redistribution of Executable. Redistribution in executable form of any
* substantial portion of the Covered Code or modification must reproduce the
* above Copyright Notice, and the following Disclaimer and Export Compliance
* distribution.
*
* 3.4. Intel retains all right, title, and interest in and to the Original
* Intel Code.
*
* 3.5. Neither the name Intel nor any other trademark owned or controlled by
* Intel shall be used in advertising or otherwise to promote the sale, use or
* other dealings in products derived from or relating to the Covered Code
* without prior written authorization from Intel.
*
* 4. Disclaimer and Export Compliance
*
* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
* PARTICULAR PURPOSE.
*
* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
* LIMITED REMEDY.
*
* 4.3. Licensee shall not export, either directly or indirectly, any of this
* software or system incorporating such software without first obtaining any
* required license or other approval from the U. S. Department of Commerce or
* any other agency or department of the United States Government. In the
* event Licensee exports any such software from the United States or
* re-exports any such software from a foreign destination, Licensee shall
* compliance with all laws, regulations, orders, or other restrictions of the
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
* software, or service, directly or indirectly, to any country for which the
* United States government or any agency thereof requires an export license,
* other governmental approval, or letter of assurance, without first obtaining
* such license, approval or letter.
*
*****************************************************************************/
#define __DSWLOAD_C__
#include "acpi.h"
#include "acparser.h"
#include "amlcode.h"
#include "acdispat.h"
#include "acinterp.h"
#include "acnamesp.h"
#include "acevents.h"
#ifdef ACPI_ASL_COMPILER
#include "acdisasm.h"
#endif
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME ("dswload")
/*******************************************************************************
*
* FUNCTION: AcpiDsInitCallbacks
*
* PARAMETERS: WalkState - Current state of the parse tree walk
* PassNumber - 1, 2, or 3
*
* RETURN: Status
*
* DESCRIPTION: Init walk state callbacks
*
******************************************************************************/
{
switch (PassNumber)
{
case 1:
break;
case 2:
break;
case 3:
#ifndef ACPI_NO_METHOD_EXECUTION
#endif
break;
default:
return (AE_BAD_PARAMETER);
}
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiDsLoad1BeginOp
*
* PARAMETERS: WalkState - Current state of the parse tree walk
* OutOp - Where to return op if a new one is created
*
* RETURN: Status
*
* DESCRIPTION: Descending callback used during the loading of ACPI tables.
*
******************************************************************************/
{
char *Path;
/* We are only interested in opcodes that have an associated name */
if (Op)
{
{
}
/* Check if this object has already been installed in the namespace */
{
}
}
/* Map the raw opcode into an internal object type */
{
case AML_SCOPE_OP:
/*
* The target name of the Scope() operator must exist at this point so
* that we can actually open the scope to enter new names underneath it.
* Allow search-to-root for single namesegs.
*/
#ifdef ACPI_ASL_COMPILER
if (Status == AE_NOT_FOUND)
{
/*
* Table disassembly:
* Target of Scope() not found. Generate an External for it, and
* insert the name into the namespace.
*/
}
#endif
if (ACPI_FAILURE (Status))
{
}
/*
* Check to make sure that the target is
* one of the opcodes that actually opens a scope
*/
{
case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
case ACPI_TYPE_DEVICE:
case ACPI_TYPE_POWER:
case ACPI_TYPE_PROCESSOR:
case ACPI_TYPE_THERMAL:
/* These are acceptable types */
break;
case ACPI_TYPE_INTEGER:
case ACPI_TYPE_STRING:
case ACPI_TYPE_BUFFER:
/*
* These types we will allow, but we will change the type. This
* enables some existing code of the form:
*
* Name (DEB, 0)
* Scope (DEB) { ... }
*
* Note: silently change the type here. On the second pass, we will report
* a warning
*/
"Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n",
break;
default:
/* All other types are an error */
"Invalid type (%s) for target of Scope operator [%4.4s] (Cannot override)",
}
break;
default:
/*
* For all other named opcodes, we will enter the name into
* the namespace.
*
* Setup the search flags.
* Since we are entering a name into the namespace, we do not want to
* enable the search-to-root upsearch.
*
* There are only two conditions where it is acceptable that the name
* already exists:
* 1) the Scope() operator can reopen a scoping object that was
* previously defined (Scope, Method, Device, etc.)
* 2) Whenever we are parsing a deferred opcode (OpRegion, Buffer,
* BufferField, or Package), the name of the object is already
* in the namespace.
*/
if (WalkState->DeferredNode)
{
/* This name is already in the namespace, get the node */
break;
}
/*
* If we are executing a method, do not create any namespace objects
* during the load phase, only during execution.
*/
if (WalkState->MethodNode)
{
break;
}
{
}
else
{
"[%s] Both Find or Create allowed\n",
}
/*
* Enter the named type into the internal namespace. We enter the name
* as we go downward in the parse tree. Any necessary subobjects that
* involve arguments to the opcode must be created as we go back up the
* parse tree later.
*/
if (ACPI_FAILURE (Status))
{
if (Status == AE_ALREADY_EXISTS)
{
/* The name already exists in this scope */
{
/*
* Allow one create on an object or segment that was
* previously declared External
*/
/* Just retyped a node, probably will need to open a scope */
if (AcpiNsOpensScope (ObjectType))
{
if (ACPI_FAILURE (Status))
{
}
}
}
}
if (ACPI_FAILURE (Status))
{
}
}
break;
}
/* Common exit */
if (!Op)
{
/* Create a new op */
if (!Op)
{
}
}
/* Initialize the op */
#if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY))
#endif
if (Node)
{
/*
* Put the Node in the "op" object that the parser uses, so we
* can get it again quickly when this scope is closed
*/
}
}
/*******************************************************************************
*
* FUNCTION: AcpiDsLoad1EndOp
*
* PARAMETERS: WalkState - Current state of the parse tree walk
*
* RETURN: Status
*
* DESCRIPTION: Ascending callback used during the loading of the namespace,
* both control methods and everything else.
*
******************************************************************************/
{
/* We are only interested in opcodes that have an associated name */
{
}
/* Get the object type to determine if we should pop the scope */
#ifndef ACPI_NO_METHOD_EXECUTION
{
/*
* If we are executing a method, do not create any namespace objects
* during the load phase, only during execution.
*/
if (!WalkState->MethodNode)
{
{
}
}
}
/*
* If we are executing a method, do not create any namespace objects
* during the load phase, only during execution.
*/
if (!WalkState->MethodNode)
{
{
if (ACPI_FAILURE (Status))
{
}
}
}
#endif
{
/* For Name opcode, get the object type from the argument */
{
/* Set node type if we have a namespace node */
{
}
}
}
/*
* If we are executing a method, do not create any namespace objects
* during the load phase, only during execution.
*/
if (!WalkState->MethodNode)
{
{
/*
* MethodOp PkgLength NameString MethodFlags TermList
*
* see the method declaration. This allows later pass1 parsing
* of invocations of the method (need to know the number of
* arguments.)
*/
"LOADING-Method: State=%p Op=%p NamedObj=%p\n",
{
if (ACPI_SUCCESS (Status))
{
}
WalkState->NumOperands = 0;
if (ACPI_FAILURE (Status))
{
}
}
}
}
/* Pop the scope stack (only if loading a table) */
if (!WalkState->MethodNode &&
{
}
}
/*******************************************************************************
*
* FUNCTION: AcpiDsLoad2BeginOp
*
* PARAMETERS: WalkState - Current state of the parse tree walk
* OutOp - Wher to return op if a new one is created
*
* RETURN: Status
*
* DESCRIPTION: Descending callback used during the loading of ACPI tables.
*
******************************************************************************/
{
char *BufferPtr;
if (Op)
{
if ((WalkState->ControlState) &&
{
/* We are executing a while loop outside of a method */
}
/* We only care about Namespace opcodes here */
{
{
/* Executing a type1 or type2 opcode outside of a method */
}
#endif
}
/* Get the name we are going to enter or lookup in the namespace */
{
/* For Namepath op, get the path string */
if (!BufferPtr)
{
/* No name, just exit */
}
}
else
{
/* Get name from the op */
}
}
else
{
/* Get the namestring from the raw AML */
}
/* Map the opcode into an internal object type */
{
case AML_FIELD_OP:
case AML_BANK_FIELD_OP:
case AML_INDEX_FIELD_OP:
break;
case AML_INT_NAMEPATH_OP:
/*
* The NamePath is an object reference to an existing object.
* Don't enter the name into the namespace, but look it up
* for use later.
*/
break;
case AML_SCOPE_OP:
/*
* The Path is an object reference to an existing object.
* Don't enter the name into the namespace, but look it up
* for use later.
*/
if (ACPI_FAILURE (Status))
{
#ifdef ACPI_ASL_COMPILER
if (Status == AE_NOT_FOUND)
{
}
else
{
}
#else
#endif
}
/*
* We must check to make sure that the target is
* one of the opcodes that actually opens a scope
*/
{
case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
case ACPI_TYPE_DEVICE:
case ACPI_TYPE_POWER:
case ACPI_TYPE_PROCESSOR:
case ACPI_TYPE_THERMAL:
/* These are acceptable types */
break;
case ACPI_TYPE_INTEGER:
case ACPI_TYPE_STRING:
case ACPI_TYPE_BUFFER:
/*
* These types we will allow, but we will change the type. This
* enables some existing code of the form:
*
* Name (DEB, 0)
* Scope (DEB) { ... }
*/
"Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)",
break;
default:
/* All other types are an error */
"Invalid type (%s) for target of Scope operator [%4.4s]",
return (AE_AML_OPERAND_TYPE);
}
break;
default:
/* All other opcodes */
{
if (AcpiNsOpensScope (ObjectType))
{
if (ACPI_FAILURE (Status))
{
}
}
}
/*
* Enter the named type into the internal namespace. We enter the name
* as we go downward in the parse tree. Any necessary subobjects that
* involve arguments to the opcode must be created as we go back up the
* parse tree later.
*
* Note: Name may already exist if we are executing a deferred opcode.
*/
if (WalkState->DeferredNode)
{
/* This name is already in the namespace, get the node */
break;
}
/* Add new entry into namespace */
break;
}
if (ACPI_FAILURE (Status))
{
}
if (!Op)
{
/* Create a new op */
if (!Op)
{
}
/* Initialize the new op */
if (Node)
{
}
}
/*
* Put the Node in the "op" object that the parser uses, so we
* can get it again quickly when this scope is closed
*/
}
/*******************************************************************************
*
* FUNCTION: AcpiDsLoad2EndOp
*
* PARAMETERS: WalkState - Current state of the parse tree walk
*
* RETURN: Status
*
* DESCRIPTION: Ascending callback used during the loading of the namespace,
* both control methods and everything else.
*
******************************************************************************/
{
#ifndef ACPI_NO_METHOD_EXECUTION
UINT32 i;
#endif
/* Check if opcode had an associated namespace object */
{
#ifndef ACPI_NO_METHOD_EXECUTION
/* No namespace object. Executable opcode? */
{
/* Executing a type1 or type2 opcode outside of a method */
}
#endif
#endif
}
{
}
/*
* (It was saved in the *op structure)
*/
/*
* Put the Node on the object stack (Contains the ACPI Name of
* this object)
*/
/* Pop the scope stack */
if (AcpiNsOpensScope (ObjectType) &&
{
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
}
/*
* Named operations are as follows:
*
* AML_ALIAS
* AML_BANKFIELD
* AML_CREATEBITFIELD
* AML_CREATEBYTEFIELD
* AML_CREATEDWORDFIELD
* AML_CREATEFIELD
* AML_CREATEQWORDFIELD
* AML_CREATEWORDFIELD
* AML_DATA_REGION
* AML_DEVICE
* AML_EVENT
* AML_FIELD
* AML_INDEXFIELD
* AML_METHOD
* AML_METHODCALL
* AML_MUTEX
* AML_NAME
* AML_NAMEDFIELD
* AML_OPREGION
* AML_POWERRES
* AML_PROCESSOR
* AML_SCOPE
* AML_THERMALZONE
*/
"Create-Load [%s] State=%p Op=%p NamedObj=%p\n",
/* Decode the opcode */
{
#ifndef ACPI_NO_METHOD_EXECUTION
case AML_TYPE_CREATE_FIELD:
/*
* Create the field object, but the field buffer and index must
* be evaluated later during the execution phase
*/
break;
case AML_TYPE_NAMED_FIELD:
/*
* If we are executing a method, initialize the field
*/
if (WalkState->MethodNode)
{
}
{
case AML_INDEX_FIELD_OP:
break;
case AML_BANK_FIELD_OP:
break;
case AML_FIELD_OP:
break;
default:
/* All NAMED_FIELD opcodes must be handled above */
break;
}
break;
case AML_TYPE_NAMED_SIMPLE:
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
{
case AML_PROCESSOR_OP:
break;
case AML_POWER_RES_OP:
break;
case AML_MUTEX_OP:
break;
case AML_EVENT_OP:
break;
case AML_DATA_REGION_OP:
break;
case AML_ALIAS_OP:
break;
default:
/* Unknown opcode */
goto Cleanup;
}
/* Delete operands */
{
}
break;
#endif /* ACPI_NO_METHOD_EXECUTION */
case AML_TYPE_NAMED_COMPLEX:
{
#ifndef ACPI_NO_METHOD_EXECUTION
case AML_REGION_OP:
/*
* If we are executing a method, initialize the region
*/
if (WalkState->MethodNode)
{
if (ACPI_FAILURE (Status))
{
return (Status);
}
}
/*
* The OpRegion is not fully parsed at this time. Only valid
* argument is the SpaceId. (We must save the address of the
* AML of the address and length operands)
*/
/*
* If we have a valid region, initialize it
* Namespace is NOT locked at this point.
*
* TBD: need to unlock interpreter if it is locked, in order
* to allow _REG methods to be run.
*/
FALSE);
if (ACPI_FAILURE (Status))
{
/*
* If AE_NOT_EXIST is returned, it is not fatal
* because many regions get created before a handler
* is installed for said region.
*/
if (AE_NOT_EXIST == Status)
{
}
}
break;
case AML_NAME_OP:
break;
case AML_METHOD_OP:
/*
* MethodOp PkgLength NameString MethodFlags TermList
*
* see the method declaration. This allows later pass1 parsing
* of invocations of the method (need to know the number of
* arguments.)
*/
"LOADING-Method: State=%p Op=%p NamedObj=%p\n",
{
if (ACPI_SUCCESS (Status))
{
}
WalkState->NumOperands = 0;
if (ACPI_FAILURE (Status))
{
}
}
break;
#endif /* ACPI_NO_METHOD_EXECUTION */
default:
/* All NAMED_COMPLEX opcodes must be handled above */
break;
}
break;
case AML_CLASS_INTERNAL:
/* case AML_INT_NAMEPATH_OP: */
break;
case AML_CLASS_METHOD_CALL:
"RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n",
/*
* Lookup the method name and save the Node
*/
if (ACPI_SUCCESS (Status))
{
/*
* Make sure that what we found is indeed a method
* We didn't search for a method on purpose, to see if the name
* would resolve
*/
{
}
/* We could put the returned object (Node) on the object stack for
* later, but for now, we will put it in the "op" object that the
* parser uses, so we can get it again at the end of this scope
*/
}
else
{
}
break;
default:
break;
}
/* Remove the Node pushed at the very beginning */
WalkState->NumOperands = 0;
}