757 lines
25 KiB
C
757 lines
25 KiB
C
|
|
/******************************************************************************
|
|
*
|
|
* Module Name: exstore - AML Interpreter object store support
|
|
* $Revision: 1.203 $
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/******************************************************************************
|
|
*
|
|
* 1. Copyright Notice
|
|
*
|
|
* Some or all of this work - Copyright (c) 1999 - 2007, 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 __EXSTORE_C__
|
|
|
|
#include <contrib/dev/acpica/acpi.h>
|
|
#include <contrib/dev/acpica/acdispat.h>
|
|
#include <contrib/dev/acpica/acinterp.h>
|
|
#include <contrib/dev/acpica/amlcode.h>
|
|
#include <contrib/dev/acpica/acnamesp.h>
|
|
#include <contrib/dev/acpica/acparser.h>
|
|
|
|
|
|
#define _COMPONENT ACPI_EXECUTER
|
|
ACPI_MODULE_NAME ("exstore")
|
|
|
|
/* Local prototypes */
|
|
|
|
static void
|
|
AcpiExDoDebugObject (
|
|
ACPI_OPERAND_OBJECT *SourceDesc,
|
|
UINT32 Level,
|
|
UINT32 Index);
|
|
|
|
static ACPI_STATUS
|
|
AcpiExStoreObjectToIndex (
|
|
ACPI_OPERAND_OBJECT *ValDesc,
|
|
ACPI_OPERAND_OBJECT *DestDesc,
|
|
ACPI_WALK_STATE *WalkState);
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* 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
|
|
AcpiExDoDebugObject (
|
|
ACPI_OPERAND_OBJECT *SourceDesc,
|
|
UINT32 Level,
|
|
UINT32 Index)
|
|
{
|
|
UINT32 i;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_PTR (ExDoDebugObject, SourceDesc);
|
|
|
|
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "[ACPI Debug] %*s",
|
|
Level, " "));
|
|
|
|
/* Display index for package output only */
|
|
|
|
if (Index > 0)
|
|
{
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT,
|
|
"(%.2u) ", Index -1));
|
|
}
|
|
|
|
if (!SourceDesc)
|
|
{
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "<Null Object>\n"));
|
|
return_VOID;
|
|
}
|
|
|
|
if (ACPI_GET_DESCRIPTOR_TYPE (SourceDesc) == ACPI_DESC_TYPE_OPERAND)
|
|
{
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "%s: ",
|
|
AcpiUtGetObjectTypeName (SourceDesc)));
|
|
|
|
if (!AcpiUtValidInternalObject (SourceDesc))
|
|
{
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT,
|
|
"%p, Invalid Internal Object!\n", SourceDesc));
|
|
return_VOID;
|
|
}
|
|
}
|
|
else if (ACPI_GET_DESCRIPTOR_TYPE (SourceDesc) == ACPI_DESC_TYPE_NAMED)
|
|
{
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "%s: %p\n",
|
|
AcpiUtGetTypeName (((ACPI_NAMESPACE_NODE *) SourceDesc)->Type),
|
|
SourceDesc));
|
|
return_VOID;
|
|
}
|
|
else
|
|
{
|
|
return_VOID;
|
|
}
|
|
|
|
switch (ACPI_GET_OBJECT_TYPE (SourceDesc))
|
|
{
|
|
case ACPI_TYPE_INTEGER:
|
|
|
|
/* Output correct integer width */
|
|
|
|
if (AcpiGbl_IntegerByteWidth == 4)
|
|
{
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "0x%8.8X\n",
|
|
(UINT32) SourceDesc->Integer.Value));
|
|
}
|
|
else
|
|
{
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "0x%8.8X%8.8X\n",
|
|
ACPI_FORMAT_UINT64 (SourceDesc->Integer.Value)));
|
|
}
|
|
break;
|
|
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "[0x%.2X]\n",
|
|
(UINT32) SourceDesc->Buffer.Length));
|
|
ACPI_DUMP_BUFFER (SourceDesc->Buffer.Pointer,
|
|
(SourceDesc->Buffer.Length < 256) ? SourceDesc->Buffer.Length : 256);
|
|
break;
|
|
|
|
case ACPI_TYPE_STRING:
|
|
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "[0x%.2X] \"%s\"\n",
|
|
SourceDesc->String.Length, SourceDesc->String.Pointer));
|
|
break;
|
|
|
|
case ACPI_TYPE_PACKAGE:
|
|
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "[0x%.2X Elements]\n",
|
|
SourceDesc->Package.Count));
|
|
|
|
/* Output the entire contents of the package */
|
|
|
|
for (i = 0; i < SourceDesc->Package.Count; i++)
|
|
{
|
|
AcpiExDoDebugObject (SourceDesc->Package.Elements[i],
|
|
Level+4, i+1);
|
|
}
|
|
break;
|
|
|
|
case ACPI_TYPE_LOCAL_REFERENCE:
|
|
|
|
if (SourceDesc->Reference.Opcode == AML_INDEX_OP)
|
|
{
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "[%s, 0x%X]\n",
|
|
AcpiPsGetOpcodeName (SourceDesc->Reference.Opcode),
|
|
SourceDesc->Reference.Offset));
|
|
}
|
|
else
|
|
{
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "[%s]\n",
|
|
AcpiPsGetOpcodeName (SourceDesc->Reference.Opcode)));
|
|
}
|
|
|
|
|
|
if (SourceDesc->Reference.Object)
|
|
{
|
|
if (ACPI_GET_DESCRIPTOR_TYPE (SourceDesc->Reference.Object) ==
|
|
ACPI_DESC_TYPE_NAMED)
|
|
{
|
|
AcpiExDoDebugObject (((ACPI_NAMESPACE_NODE *)
|
|
SourceDesc->Reference.Object)->Object,
|
|
Level+4, 0);
|
|
}
|
|
else
|
|
{
|
|
AcpiExDoDebugObject (SourceDesc->Reference.Object, Level+4, 0);
|
|
}
|
|
}
|
|
else if (SourceDesc->Reference.Node)
|
|
{
|
|
AcpiExDoDebugObject ((SourceDesc->Reference.Node)->Object,
|
|
Level+4, 0);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "%p %s\n",
|
|
SourceDesc, AcpiUtGetObjectTypeName (SourceDesc)));
|
|
break;
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC, "\n"));
|
|
return_VOID;
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* 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.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExStore (
|
|
ACPI_OPERAND_OBJECT *SourceDesc,
|
|
ACPI_OPERAND_OBJECT *DestDesc,
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
ACPI_OPERAND_OBJECT *RefDesc = DestDesc;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_PTR (ExStore, DestDesc);
|
|
|
|
|
|
/* Validate parameters */
|
|
|
|
if (!SourceDesc || !DestDesc)
|
|
{
|
|
ACPI_ERROR ((AE_INFO, "Null parameter"));
|
|
return_ACPI_STATUS (AE_AML_NO_OPERAND);
|
|
}
|
|
|
|
/* DestDesc can be either a namespace node or an ACPI object */
|
|
|
|
if (ACPI_GET_DESCRIPTOR_TYPE (DestDesc) == ACPI_DESC_TYPE_NAMED)
|
|
{
|
|
/*
|
|
* Dest is a namespace node,
|
|
* Storing an object into a Named node.
|
|
*/
|
|
Status = AcpiExStoreObjectToNode (SourceDesc,
|
|
(ACPI_NAMESPACE_NODE *) DestDesc, WalkState,
|
|
ACPI_IMPLICIT_CONVERSION);
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Destination object must be a Reference or a Constant object */
|
|
|
|
switch (ACPI_GET_OBJECT_TYPE (DestDesc))
|
|
{
|
|
case ACPI_TYPE_LOCAL_REFERENCE:
|
|
break;
|
|
|
|
case ACPI_TYPE_INTEGER:
|
|
|
|
/* Allow stores to Constants -- a Noop as per ACPI spec */
|
|
|
|
if (DestDesc->Common.Flags & AOPOBJ_AML_CONSTANT)
|
|
{
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/*lint -fallthrough */
|
|
|
|
default:
|
|
|
|
/* Destination is not a Reference object */
|
|
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Target is not a Reference or Constant object - %s [%p]",
|
|
AcpiUtGetObjectTypeName (DestDesc), DestDesc));
|
|
|
|
ACPI_DUMP_STACK_ENTRY (SourceDesc);
|
|
ACPI_DUMP_STACK_ENTRY (DestDesc);
|
|
ACPI_DUMP_OPERANDS (&DestDesc, ACPI_IMODE_EXECUTE, "ExStore",
|
|
2, "Target is not a Reference or Constant object");
|
|
|
|
return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
|
|
}
|
|
|
|
/*
|
|
* 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
|
|
*/
|
|
switch (RefDesc->Reference.Opcode)
|
|
{
|
|
case AML_REF_OF_OP:
|
|
|
|
/* Storing an object into a Name "container" */
|
|
|
|
Status = AcpiExStoreObjectToNode (SourceDesc,
|
|
RefDesc->Reference.Object,
|
|
WalkState, ACPI_IMPLICIT_CONVERSION);
|
|
break;
|
|
|
|
|
|
case AML_INDEX_OP:
|
|
|
|
/* Storing to an Index (pointer into a packager or buffer) */
|
|
|
|
Status = AcpiExStoreObjectToIndex (SourceDesc, RefDesc, WalkState);
|
|
break;
|
|
|
|
|
|
case AML_LOCAL_OP:
|
|
case AML_ARG_OP:
|
|
|
|
/* Store to a method local/arg */
|
|
|
|
Status = AcpiDsStoreObjectToLocal (RefDesc->Reference.Opcode,
|
|
RefDesc->Reference.Offset, SourceDesc, WalkState);
|
|
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
|
|
*/
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
|
|
"**** Write to Debug Object: Object %p %s ****:\n\n",
|
|
SourceDesc, AcpiUtGetObjectTypeName (SourceDesc)));
|
|
|
|
AcpiExDoDebugObject (SourceDesc, 0, 0);
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
ACPI_ERROR ((AE_INFO, "Unknown Reference opcode %X",
|
|
RefDesc->Reference.Opcode));
|
|
ACPI_DUMP_ENTRY (RefDesc, ACPI_LV_ERROR);
|
|
|
|
Status = AE_AML_INTERNAL;
|
|
break;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* 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
|
|
AcpiExStoreObjectToIndex (
|
|
ACPI_OPERAND_OBJECT *SourceDesc,
|
|
ACPI_OPERAND_OBJECT *IndexDesc,
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_OPERAND_OBJECT *NewDesc;
|
|
UINT8 Value = 0;
|
|
UINT32 i;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (ExStoreObjectToIndex);
|
|
|
|
|
|
/*
|
|
* Destination must be a reference pointer, and
|
|
* must point to either a buffer or a package
|
|
*/
|
|
switch (IndexDesc->Reference.TargetType)
|
|
{
|
|
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
|
|
*/
|
|
ObjDesc = *(IndexDesc->Reference.Where);
|
|
|
|
Status = AcpiUtCopyIobjectToIobject (SourceDesc, &NewDesc, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
if (ObjDesc)
|
|
{
|
|
/* Decrement reference count by the ref count of the parent package */
|
|
|
|
for (i = 0;
|
|
i < ((ACPI_OPERAND_OBJECT *)
|
|
IndexDesc->Reference.Object)->Common.ReferenceCount;
|
|
i++)
|
|
{
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
}
|
|
}
|
|
|
|
*(IndexDesc->Reference.Where) = NewDesc;
|
|
|
|
/* Increment ref count by the ref count of the parent package-1 */
|
|
|
|
for (i = 1;
|
|
i < ((ACPI_OPERAND_OBJECT *)
|
|
IndexDesc->Reference.Object)->Common.ReferenceCount;
|
|
i++)
|
|
{
|
|
AcpiUtAddReference (NewDesc);
|
|
}
|
|
|
|
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.
|
|
*/
|
|
ObjDesc = IndexDesc->Reference.Object;
|
|
if ((ACPI_GET_OBJECT_TYPE (ObjDesc) != ACPI_TYPE_BUFFER) &&
|
|
(ACPI_GET_OBJECT_TYPE (ObjDesc) != ACPI_TYPE_STRING))
|
|
{
|
|
return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
|
|
}
|
|
|
|
/*
|
|
* 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 */
|
|
|
|
Value = (UINT8) (SourceDesc->Integer.Value);
|
|
break;
|
|
|
|
case ACPI_TYPE_BUFFER:
|
|
case ACPI_TYPE_STRING:
|
|
|
|
/* Note: Takes advantage of common string/buffer fields */
|
|
|
|
Value = SourceDesc->Buffer.Pointer[0];
|
|
break;
|
|
|
|
default:
|
|
|
|
/* All other types are invalid */
|
|
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Source must be Integer/Buffer/String type, not %s",
|
|
AcpiUtGetObjectTypeName (SourceDesc)));
|
|
return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
|
|
}
|
|
|
|
/* Store the source value into the target buffer byte */
|
|
|
|
ObjDesc->Buffer.Pointer[IndexDesc->Reference.Offset] = Value;
|
|
break;
|
|
|
|
|
|
default:
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Target is not a Package or BufferField"));
|
|
Status = AE_AML_OPERAND_TYPE;
|
|
break;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExStoreObjectToNode
|
|
*
|
|
* PARAMETERS: SourceDesc - Value to be stored
|
|
* Node - Named object to receive the value
|
|
* WalkState - Current walk state
|
|
* ImplicitConversion - Perform implicit conversion (yes/no)
|
|
*
|
|
* 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.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExStoreObjectToNode (
|
|
ACPI_OPERAND_OBJECT *SourceDesc,
|
|
ACPI_NAMESPACE_NODE *Node,
|
|
ACPI_WALK_STATE *WalkState,
|
|
UINT8 ImplicitConversion)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
ACPI_OPERAND_OBJECT *TargetDesc;
|
|
ACPI_OPERAND_OBJECT *NewDesc;
|
|
ACPI_OBJECT_TYPE TargetType;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_PTR (ExStoreObjectToNode, SourceDesc);
|
|
|
|
|
|
/* Get current type of the node, and object attached to Node */
|
|
|
|
TargetType = AcpiNsGetType (Node);
|
|
TargetDesc = AcpiNsGetAttachedObject (Node);
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Storing %p(%s) into node %p(%s)\n",
|
|
SourceDesc, AcpiUtGetObjectTypeName (SourceDesc),
|
|
Node, AcpiUtGetTypeName (TargetType)));
|
|
|
|
/*
|
|
* Resolve the source object to an actual value
|
|
* (If it is a reference object)
|
|
*/
|
|
Status = AcpiExResolveObject (&SourceDesc, TargetType, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* If no implicit conversion, drop into the default case below */
|
|
|
|
if ((!ImplicitConversion) || (WalkState->Opcode == AML_COPY_OP))
|
|
{
|
|
/* Force execution of default (no implicit conversion) */
|
|
|
|
TargetType = ACPI_TYPE_ANY;
|
|
}
|
|
|
|
/* Do the actual store operation */
|
|
|
|
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:
|
|
|
|
/* For fields, copy the source data to the target field. */
|
|
|
|
Status = AcpiExWriteDataToField (SourceDesc, TargetDesc,
|
|
&WalkState->ResultObj);
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_INTEGER:
|
|
case ACPI_TYPE_STRING:
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
/*
|
|
* These target types are all of type Integer/String/Buffer, and
|
|
* therefore support implicit conversion before the store.
|
|
*
|
|
* Copy and/or convert the source object to a new target object
|
|
*/
|
|
Status = AcpiExStoreObjectToObject (SourceDesc, TargetDesc,
|
|
&NewDesc, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (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
|
|
* has been performed such that the node/object type has been
|
|
* changed.
|
|
*/
|
|
Status = AcpiNsAttachObject (Node, NewDesc, NewDesc->Common.Type);
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
|
|
"Store %s into %s via Convert/Attach\n",
|
|
AcpiUtGetObjectTypeName (SourceDesc),
|
|
AcpiUtGetObjectTypeName (NewDesc)));
|
|
}
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
|
|
"Storing %s (%p) directly into node (%p) with no implicit conversion\n",
|
|
AcpiUtGetObjectTypeName (SourceDesc), SourceDesc, Node));
|
|
|
|
/* No conversions for all other types. Just attach the source object */
|
|
|
|
Status = AcpiNsAttachObject (Node, SourceDesc,
|
|
ACPI_GET_OBJECT_TYPE (SourceDesc));
|
|
break;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|