exstore.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/******************************************************************************
*
* Module Name: exstore - AML Interpreter object store support
* $Revision: 194 $
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2005, 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 __EXSTORE_C__
#include "acpi.h"
#include "acdispat.h"
#include "acinterp.h"
#include "amlcode.h"
#include "acnamesp.h"
#include "acparser.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME ("exstore")
/* Local prototypes */
static void
static ACPI_STATUS
/*******************************************************************************
*
* FUNCTION: AcpiExDoDebugObject
*
* PARAMETERS: SourceDesc - Value to be stored
* Level - Indentation level (used for packages)
* Index - Current package element, zero if not pkg
*
* RETURN: None
*
* DESCRIPTION: Handles stores to the Debug Object.
*
******************************************************************************/
static void
{
UINT32 i;
Level, " "));
/* Display index for package output only */
if (Index > 0)
{
}
if (!SourceDesc)
{
}
{
if (!AcpiUtValidInternalObject (SourceDesc))
{
"%p, Invalid Internal Object!\n", SourceDesc));
}
}
{
SourceDesc));
}
else
{
}
switch (ACPI_GET_OBJECT_TYPE (SourceDesc))
{
case ACPI_TYPE_INTEGER:
/* Output correct integer width */
if (AcpiGbl_IntegerByteWidth == 4)
{
}
else
{
}
break;
case ACPI_TYPE_BUFFER:
break;
case ACPI_TYPE_STRING:
break;
case ACPI_TYPE_PACKAGE:
/* Output the entire contents of the package */
{
}
break;
{
}
else
{
}
{
{
Level+4, 0);
}
else
{
}
}
{
Level+4, 0);
}
break;
default:
break;
}
}
/*******************************************************************************
*
* FUNCTION: AcpiExStore
*
* PARAMETERS: *SourceDesc - Value to be stored
* *DestDesc - Where to store it. Must be an NS node
* or an ACPI_OPERAND_OBJECT of type
* Reference;
* WalkState - Current walk state
*
* RETURN: Status
*
* DESCRIPTION: Store the value described by SourceDesc into the location
* described by DestDesc. Called by various interpreter
* functions to store the result of an operation into
* the destination operand -- not just simply the actual "Store"
* ASL operator.
*
******************************************************************************/
{
/* Validate parameters */
if (!SourceDesc || !DestDesc)
{
}
/* DestDesc can be either a namespace node or an ACPI object */
{
/*
* Dest is a namespace node,
* Storing an object into a Named node.
*/
}
/* Destination object must be a Reference or a Constant object */
switch (ACPI_GET_OBJECT_TYPE (DestDesc))
{
break;
case ACPI_TYPE_INTEGER:
/* Allow stores to Constants -- a Noop as per ACPI spec */
{
}
/*lint -fallthrough */
default:
/* Destination is not a Reference object */
"Target is not a Reference or Constant object - %s [%p]\n",
2, "Target is not a Reference or Constant object");
}
/*
* Examine the Reference opcode. These cases are handled:
*
* 1) Store to Name (Change the object associated with a name)
* 2) Store to an indexed area of a Buffer or Package
* 3) Store to a Method Local or Arg
* 4) Store to the debug object
*/
{
case AML_NAME_OP:
case AML_REF_OF_OP:
/* Storing an object into a Name "container" */
break;
case AML_INDEX_OP:
/* Storing to an Index (pointer into a packager or buffer) */
break;
case AML_LOCAL_OP:
case AML_ARG_OP:
break;
case AML_DEBUG_OP:
/*
* Storing to the Debug object causes the value stored to be
* displayed and otherwise has no effect -- see ACPI Specification
*/
"**** Write to Debug Object: Object %p %s ****:\n\n",
AcpiExDoDebugObject (SourceDesc, 0, 0);
break;
default:
ACPI_REPORT_ERROR (("ExStore: Unknown Reference opcode %X\n",
break;
}
}
/*******************************************************************************
*
* FUNCTION: AcpiExStoreObjectToIndex
*
* PARAMETERS: *SourceDesc - Value to be stored
* *DestDesc - Named object to receive the value
* WalkState - Current walk state
*
* RETURN: Status
*
* DESCRIPTION: Store the object to indexed Buffer or Package element
*
******************************************************************************/
static ACPI_STATUS
{
UINT32 i;
ACPI_FUNCTION_TRACE ("ExStoreObjectToIndex");
/*
* Destination must be a reference pointer, and
* must point to either a buffer or a package
*/
{
case ACPI_TYPE_PACKAGE:
/*
* Storing to a package element. Copy the object and replace
* any existing object with the new object. No implicit
* conversion is performed.
*
* The object at *(IndexDesc->Reference.Where) is the
* element within the package that is to be modified.
* The parent package object is at IndexDesc->Reference.Object
*/
if (ACPI_FAILURE (Status))
{
}
if (ObjDesc)
{
/* Decrement reference count by the ref count of the parent package */
for (i = 0;
i < ((ACPI_OPERAND_OBJECT *)
i++)
{
}
}
/* Increment ref count by the ref count of the parent package-1 */
for (i = 1;
i < ((ACPI_OPERAND_OBJECT *)
i++)
{
}
break;
case ACPI_TYPE_BUFFER_FIELD:
/*
* Store into a Buffer or String (not actually a real BufferField)
* at a location defined by an Index.
*
* The first 8-bit element of the source object is written to the
* 8-bit Buffer location defined by the Index destination object,
* according to the ACPI 2.0 specification.
*/
/*
* Make sure the target is a Buffer or String. An error should
* not happen here, since the ReferenceObject was constructed
* by the INDEX_OP code.
*/
{
}
/*
* The assignment of the individual elements will be slightly
* different for each source type.
*/
switch (ACPI_GET_OBJECT_TYPE (SourceDesc))
{
case ACPI_TYPE_INTEGER:
/* Use the least-significant byte of the integer */
break;
case ACPI_TYPE_BUFFER:
case ACPI_TYPE_STRING:
break;
default:
/* All other types are invalid */
}
/* Store the source value into the target buffer byte */
break;
default:
"Target is not a Package or BufferField\n"));
break;
}
}
/*******************************************************************************
*
* FUNCTION: AcpiExStoreObjectToNode
*
* PARAMETERS: SourceDesc - Value to be stored
* Node - Named object to receive the value
* WalkState - Current walk state
*
* RETURN: Status
*
* DESCRIPTION: Store the object to the named object.
*
* The Assignment of an object to a named object is handled here
* The value 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.
*
* Assumes parameters are already validated.
*
******************************************************************************/
{
/* Get current type of the node, and object attached to Node */
/*
* Resolve the source object to an actual value
* (If it is a reference object)
*/
if (ACPI_FAILURE (Status))
{
}
/* If no implicit conversion, drop into the default case below */
if (!ImplicitConversion)
{
/* Force execution of default (no implicit conversion) */
}
/* Do the actual store operation */
switch (TargetType)
{
case ACPI_TYPE_BUFFER_FIELD:
/* For fields, copy the source data to the target field. */
break;
case ACPI_TYPE_INTEGER:
case ACPI_TYPE_STRING:
case ACPI_TYPE_BUFFER:
/*
* therefore support implicit conversion before the store.
*
*/
if (ACPI_FAILURE (Status))
{
}
if (NewDesc != TargetDesc)
{
/*
* Store the new NewDesc as the new value of the Name, and set
* the Name's type to that of the value being stored in it.
* SourceDesc reference count is incremented by AttachObject.
*
* Note: This may change the type of the node if an explicit store
* changed.
*/
}
break;
default:
"Storing %s (%p) directly into node (%p), no implicit conversion\n",
/* No conversions for all other types. Just attach the source object */
break;
}
}