283 lines
11 KiB
C
283 lines
11 KiB
C
|
|
/******************************************************************************
|
|
*
|
|
* Module Name: exstorob - AML Interpreter object store support, store to object
|
|
* $Revision: 50 $
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/******************************************************************************
|
|
*
|
|
* 1. Copyright Notice
|
|
*
|
|
* Some or all of this work - Copyright (c) 1999 - 2003, 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 __EXSTOROB_C__
|
|
|
|
#include "acpi.h"
|
|
#include "acinterp.h"
|
|
|
|
|
|
#define _COMPONENT ACPI_EXECUTER
|
|
ACPI_MODULE_NAME ("exstorob")
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExStoreBufferToBuffer
|
|
*
|
|
* PARAMETERS: SourceDesc - Source object to copy
|
|
* TargetDesc - Destination object of the copy
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Copy a buffer object to another buffer object.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExStoreBufferToBuffer (
|
|
ACPI_OPERAND_OBJECT *SourceDesc,
|
|
ACPI_OPERAND_OBJECT *TargetDesc)
|
|
{
|
|
UINT32 Length;
|
|
UINT8 *Buffer;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_PTR ("ExStoreBufferToBuffer", SourceDesc);
|
|
|
|
|
|
/*
|
|
* We know that SourceDesc is a buffer by now
|
|
*/
|
|
Buffer = (UINT8 *) SourceDesc->Buffer.Pointer;
|
|
Length = SourceDesc->Buffer.Length;
|
|
|
|
/*
|
|
* If target is a buffer of length zero or is a static buffer,
|
|
* allocate a new buffer of the proper length
|
|
*/
|
|
if ((TargetDesc->Buffer.Length == 0) ||
|
|
(TargetDesc->Common.Flags & AOPOBJ_STATIC_POINTER))
|
|
{
|
|
TargetDesc->Buffer.Pointer = ACPI_MEM_ALLOCATE (Length);
|
|
if (!TargetDesc->Buffer.Pointer)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
TargetDesc->Common.Flags &= ~AOPOBJ_STATIC_POINTER;
|
|
TargetDesc->Buffer.Length = Length;
|
|
}
|
|
|
|
/*
|
|
* Buffer is a static allocation,
|
|
* only place what will fit in the buffer.
|
|
*/
|
|
if (Length <= TargetDesc->Buffer.Length)
|
|
{
|
|
/* Clear existing buffer and copy in the new one */
|
|
|
|
ACPI_MEMSET (TargetDesc->Buffer.Pointer, 0, TargetDesc->Buffer.Length);
|
|
ACPI_MEMCPY (TargetDesc->Buffer.Pointer, Buffer, Length);
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Truncate the source, copy only what will fit
|
|
*/
|
|
ACPI_MEMCPY (TargetDesc->Buffer.Pointer, Buffer, TargetDesc->Buffer.Length);
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
|
|
"Truncating src buffer from %X to %X\n",
|
|
Length, TargetDesc->Buffer.Length));
|
|
}
|
|
|
|
/* Copy flags */
|
|
|
|
TargetDesc->Buffer.Flags = SourceDesc->Buffer.Flags;
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExStoreStringToString
|
|
*
|
|
* PARAMETERS: SourceDesc - Source object to copy
|
|
* TargetDesc - Destination object of the copy
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Copy a String object to another String object
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExStoreStringToString (
|
|
ACPI_OPERAND_OBJECT *SourceDesc,
|
|
ACPI_OPERAND_OBJECT *TargetDesc)
|
|
{
|
|
UINT32 Length;
|
|
UINT8 *Buffer;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_PTR ("ExStoreStringToString", SourceDesc);
|
|
|
|
|
|
/*
|
|
* We know that SourceDesc is a string by now.
|
|
*/
|
|
Buffer = (UINT8 *) SourceDesc->String.Pointer;
|
|
Length = SourceDesc->String.Length;
|
|
|
|
/*
|
|
* Replace existing string value if it will fit and the string
|
|
* pointer is not a static pointer (part of an ACPI table)
|
|
*/
|
|
if ((Length < TargetDesc->String.Length) &&
|
|
(!(TargetDesc->Common.Flags & AOPOBJ_STATIC_POINTER)))
|
|
{
|
|
/*
|
|
* String will fit in existing non-static buffer.
|
|
* Clear old string and copy in the new one
|
|
*/
|
|
ACPI_MEMSET (TargetDesc->String.Pointer, 0, (ACPI_SIZE) TargetDesc->String.Length + 1);
|
|
ACPI_MEMCPY (TargetDesc->String.Pointer, Buffer, Length);
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Free the current buffer, then allocate a new buffer
|
|
* large enough to hold the value
|
|
*/
|
|
if (TargetDesc->String.Pointer &&
|
|
(!(TargetDesc->Common.Flags & AOPOBJ_STATIC_POINTER)))
|
|
{
|
|
/*
|
|
* Only free if not a pointer into the DSDT
|
|
*/
|
|
ACPI_MEM_FREE (TargetDesc->String.Pointer);
|
|
}
|
|
|
|
TargetDesc->String.Pointer = ACPI_MEM_CALLOCATE ((ACPI_SIZE) Length + 1);
|
|
if (!TargetDesc->String.Pointer)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
TargetDesc->Common.Flags &= ~AOPOBJ_STATIC_POINTER;
|
|
ACPI_MEMCPY (TargetDesc->String.Pointer, Buffer, Length);
|
|
}
|
|
|
|
/* Set the new target length */
|
|
|
|
TargetDesc->String.Length = Length;
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|