387 lines
14 KiB
C
387 lines
14 KiB
C
|
|
/******************************************************************************
|
|
*
|
|
* Module Name: exstoren - AML Interpreter object store support,
|
|
* Store to Node (namespace object)
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/******************************************************************************
|
|
*
|
|
* 1. Copyright Notice
|
|
*
|
|
* Some or all of this work - Copyright (c) 1999 - 2011, 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
|
|
* documentation and/or other materials provided with distribution. In
|
|
* 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
|
|
* provision in the documentation and/or other materials provided with the
|
|
* 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
|
|
* ensure that the distribution and export/re-export of the software is in
|
|
* compliance with all laws, regulations, orders, or other restrictions of the
|
|
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
|
|
* any of its subsidiaries will export/re-export any technical data, process,
|
|
* 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 __EXSTOREN_C__
|
|
|
|
#include "acpi.h"
|
|
#include "accommon.h"
|
|
#include "acinterp.h"
|
|
#include "amlcode.h"
|
|
|
|
|
|
#define _COMPONENT ACPI_EXECUTER
|
|
ACPI_MODULE_NAME ("exstoren")
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExResolveObject
|
|
*
|
|
* PARAMETERS: SourceDescPtr - Pointer to the source object
|
|
* TargetType - Current type of the target
|
|
* WalkState - Current walk state
|
|
*
|
|
* RETURN: Status, resolved object in SourceDescPtr.
|
|
*
|
|
* DESCRIPTION: Resolve an object. If the object is a reference, dereference
|
|
* it and return the actual object in the SourceDescPtr.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExResolveObject (
|
|
ACPI_OPERAND_OBJECT **SourceDescPtr,
|
|
ACPI_OBJECT_TYPE TargetType,
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_OPERAND_OBJECT *SourceDesc = *SourceDescPtr;
|
|
ACPI_STATUS Status = AE_OK;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (ExResolveObject);
|
|
|
|
|
|
/* Ensure we have a Target that can be stored to */
|
|
|
|
switch (TargetType)
|
|
{
|
|
case ACPI_TYPE_BUFFER_FIELD:
|
|
case ACPI_TYPE_LOCAL_REGION_FIELD:
|
|
case ACPI_TYPE_LOCAL_BANK_FIELD:
|
|
case ACPI_TYPE_LOCAL_INDEX_FIELD:
|
|
/*
|
|
* These cases all require only Integers or values that
|
|
* can be converted to Integers (Strings or Buffers)
|
|
*/
|
|
|
|
case ACPI_TYPE_INTEGER:
|
|
case ACPI_TYPE_STRING:
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
/*
|
|
* Stores into a Field/Region or into a Integer/Buffer/String
|
|
* are all essentially the same. This case handles the
|
|
* "interchangeable" types Integer, String, and Buffer.
|
|
*/
|
|
if (SourceDesc->Common.Type == ACPI_TYPE_LOCAL_REFERENCE)
|
|
{
|
|
/* Resolve a reference object first */
|
|
|
|
Status = AcpiExResolveToValue (SourceDescPtr, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* For CopyObject, no further validation necessary */
|
|
|
|
if (WalkState->Opcode == AML_COPY_OP)
|
|
{
|
|
break;
|
|
}
|
|
|
|
/* Must have a Integer, Buffer, or String */
|
|
|
|
if ((SourceDesc->Common.Type != ACPI_TYPE_INTEGER) &&
|
|
(SourceDesc->Common.Type != ACPI_TYPE_BUFFER) &&
|
|
(SourceDesc->Common.Type != ACPI_TYPE_STRING) &&
|
|
!((SourceDesc->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) &&
|
|
(SourceDesc->Reference.Class== ACPI_REFCLASS_TABLE)))
|
|
{
|
|
/* Conversion successful but still not a valid type */
|
|
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Cannot assign type %s to %s (must be type Int/Str/Buf)",
|
|
AcpiUtGetObjectTypeName (SourceDesc),
|
|
AcpiUtGetTypeName (TargetType)));
|
|
Status = AE_AML_OPERAND_TYPE;
|
|
}
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_LOCAL_ALIAS:
|
|
case ACPI_TYPE_LOCAL_METHOD_ALIAS:
|
|
|
|
/*
|
|
* All aliases should have been resolved earlier, during the
|
|
* operand resolution phase.
|
|
*/
|
|
ACPI_ERROR ((AE_INFO, "Store into an unresolved Alias object"));
|
|
Status = AE_AML_INTERNAL;
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_PACKAGE:
|
|
default:
|
|
|
|
/*
|
|
* All other types than Alias and the various Fields come here,
|
|
* including the untyped case - ACPI_TYPE_ANY.
|
|
*/
|
|
break;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExStoreObjectToObject
|
|
*
|
|
* PARAMETERS: SourceDesc - Object to store
|
|
* DestDesc - Object to receive a copy of the source
|
|
* NewDesc - New object if DestDesc is obsoleted
|
|
* WalkState - Current walk state
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: "Store" an object to another object. This may include
|
|
* converting the source type to the target type (implicit
|
|
* conversion), and a copy of the value of the source to
|
|
* the target.
|
|
*
|
|
* The Assignment of an object to another (not named) object
|
|
* is handled here.
|
|
* The Source passed in will replace the current value (if any)
|
|
* with the input value.
|
|
*
|
|
* When storing into an object the data is converted to the
|
|
* target object type then stored in the object. This means
|
|
* that the target object type (for an initialized target) will
|
|
* not be changed by a store operation.
|
|
*
|
|
* This module allows destination types of Number, String,
|
|
* Buffer, and Package.
|
|
*
|
|
* Assumes parameters are already validated. NOTE: SourceDesc
|
|
* resolution (from a reference object) must be performed by
|
|
* the caller if necessary.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExStoreObjectToObject (
|
|
ACPI_OPERAND_OBJECT *SourceDesc,
|
|
ACPI_OPERAND_OBJECT *DestDesc,
|
|
ACPI_OPERAND_OBJECT **NewDesc,
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ActualSrcDesc;
|
|
ACPI_STATUS Status = AE_OK;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_PTR (ExStoreObjectToObject, SourceDesc);
|
|
|
|
|
|
ActualSrcDesc = SourceDesc;
|
|
if (!DestDesc)
|
|
{
|
|
/*
|
|
* There is no destination object (An uninitialized node or
|
|
* package element), so we can simply copy the source object
|
|
* creating a new destination object
|
|
*/
|
|
Status = AcpiUtCopyIobjectToIobject (ActualSrcDesc, NewDesc, WalkState);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
if (SourceDesc->Common.Type != DestDesc->Common.Type)
|
|
{
|
|
/*
|
|
* The source type does not match the type of the destination.
|
|
* Perform the "implicit conversion" of the source to the current type
|
|
* of the target as per the ACPI specification.
|
|
*
|
|
* If no conversion performed, ActualSrcDesc = SourceDesc.
|
|
* Otherwise, ActualSrcDesc is a temporary object to hold the
|
|
* converted object.
|
|
*/
|
|
Status = AcpiExConvertToTargetType (DestDesc->Common.Type,
|
|
SourceDesc, &ActualSrcDesc, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
if (SourceDesc == ActualSrcDesc)
|
|
{
|
|
/*
|
|
* No conversion was performed. Return the SourceDesc as the
|
|
* new object.
|
|
*/
|
|
*NewDesc = SourceDesc;
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We now have two objects of identical types, and we can perform a
|
|
* copy of the *value* of the source object.
|
|
*/
|
|
switch (DestDesc->Common.Type)
|
|
{
|
|
case ACPI_TYPE_INTEGER:
|
|
|
|
DestDesc->Integer.Value = ActualSrcDesc->Integer.Value;
|
|
|
|
/* Truncate value if we are executing from a 32-bit ACPI table */
|
|
|
|
AcpiExTruncateFor32bitTable (DestDesc);
|
|
break;
|
|
|
|
case ACPI_TYPE_STRING:
|
|
|
|
Status = AcpiExStoreStringToString (ActualSrcDesc, DestDesc);
|
|
break;
|
|
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
Status = AcpiExStoreBufferToBuffer (ActualSrcDesc, DestDesc);
|
|
break;
|
|
|
|
case ACPI_TYPE_PACKAGE:
|
|
|
|
Status = AcpiUtCopyIobjectToIobject (ActualSrcDesc, &DestDesc,
|
|
WalkState);
|
|
break;
|
|
|
|
default:
|
|
/*
|
|
* All other types come here.
|
|
*/
|
|
ACPI_WARNING ((AE_INFO, "Store into type %s not implemented",
|
|
AcpiUtGetObjectTypeName (DestDesc)));
|
|
|
|
Status = AE_NOT_IMPLEMENTED;
|
|
break;
|
|
}
|
|
|
|
if (ActualSrcDesc != SourceDesc)
|
|
{
|
|
/* Delete the intermediate (temporary) source object */
|
|
|
|
AcpiUtRemoveReference (ActualSrcDesc);
|
|
}
|
|
|
|
*NewDesc = DestDesc;
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|