0,0 → 1,386 |
|
/****************************************************************************** |
* |
* 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 - 2010, 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); |
} |
|
|