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Diffstat (limited to 'sys/contrib/dev/acpica/dsobject.c')
| -rw-r--r-- | sys/contrib/dev/acpica/dsobject.c | 789 |
1 files changed, 789 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/dsobject.c b/sys/contrib/dev/acpica/dsobject.c new file mode 100644 index 0000000..a058299 --- /dev/null +++ b/sys/contrib/dev/acpica/dsobject.c @@ -0,0 +1,789 @@ +/****************************************************************************** + * + * Module Name: dsobject - Dispatcher object management routines + * $Revision: 1.135 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 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 __DSOBJECT_C__ + +#include <contrib/dev/acpica/acpi.h> +#include <contrib/dev/acpica/acparser.h> +#include <contrib/dev/acpica/amlcode.h> +#include <contrib/dev/acpica/acdispat.h> +#include <contrib/dev/acpica/acnamesp.h> +#include <contrib/dev/acpica/acinterp.h> + +#define _COMPONENT ACPI_DISPATCHER + ACPI_MODULE_NAME ("dsobject") + +/* Local prototypes */ + +static ACPI_STATUS +AcpiDsBuildInternalObject ( + ACPI_WALK_STATE *WalkState, + ACPI_PARSE_OBJECT *Op, + ACPI_OPERAND_OBJECT **ObjDescPtr); + + +#ifndef ACPI_NO_METHOD_EXECUTION +/******************************************************************************* + * + * FUNCTION: AcpiDsBuildInternalObject + * + * PARAMETERS: WalkState - Current walk state + * Op - Parser object to be translated + * ObjDescPtr - Where the ACPI internal object is returned + * + * RETURN: Status + * + * DESCRIPTION: Translate a parser Op object to the equivalent namespace object + * Simple objects are any objects other than a package object! + * + ******************************************************************************/ + +static ACPI_STATUS +AcpiDsBuildInternalObject ( + ACPI_WALK_STATE *WalkState, + ACPI_PARSE_OBJECT *Op, + ACPI_OPERAND_OBJECT **ObjDescPtr) +{ + ACPI_OPERAND_OBJECT *ObjDesc; + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE (DsBuildInternalObject); + + + *ObjDescPtr = NULL; + if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP) + { + /* + * This is a named object reference. If this name was + * previously looked up in the namespace, it was stored in this op. + * Otherwise, go ahead and look it up now + */ + if (!Op->Common.Node) + { + Status = AcpiNsLookup (WalkState->ScopeInfo, + Op->Common.Value.String, + ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, + ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL, + ACPI_CAST_INDIRECT_PTR (ACPI_NAMESPACE_NODE, &(Op->Common.Node))); + if (ACPI_FAILURE (Status)) + { + /* Check if we are resolving a named reference within a package */ + + if ((Status == AE_NOT_FOUND) && (AcpiGbl_EnableInterpreterSlack) && + + ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) || + (Op->Common.Parent->Common.AmlOpcode == AML_VAR_PACKAGE_OP))) + { + /* + * We didn't find the target and we are populating elements + * of a package - ignore if slack enabled. Some ASL code + * contains dangling invalid references in packages and + * expects that no exception will be issued. Leave the + * element as a null element. It cannot be used, but it + * can be overwritten by subsequent ASL code - this is + * typically the case. + */ + ACPI_DEBUG_PRINT ((ACPI_DB_INFO, + "Ignoring unresolved reference in package [%4.4s]\n", + WalkState->ScopeInfo->Scope.Node->Name.Ascii)); + + return_ACPI_STATUS (AE_OK); + } + else + { + ACPI_ERROR_NAMESPACE (Op->Common.Value.String, Status); + } + + return_ACPI_STATUS (Status); + } + } + } + + /* Create and init a new internal ACPI object */ + + ObjDesc = AcpiUtCreateInternalObject ( + (AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode))->ObjectType); + if (!ObjDesc) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + + Status = AcpiDsInitObjectFromOp (WalkState, Op, Op->Common.AmlOpcode, + &ObjDesc); + if (ACPI_FAILURE (Status)) + { + AcpiUtRemoveReference (ObjDesc); + return_ACPI_STATUS (Status); + } + + *ObjDescPtr = ObjDesc; + return_ACPI_STATUS (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDsBuildInternalBufferObj + * + * PARAMETERS: WalkState - Current walk state + * Op - Parser object to be translated + * BufferLength - Length of the buffer + * ObjDescPtr - Where the ACPI internal object is returned + * + * RETURN: Status + * + * DESCRIPTION: Translate a parser Op package object to the equivalent + * namespace object + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDsBuildInternalBufferObj ( + ACPI_WALK_STATE *WalkState, + ACPI_PARSE_OBJECT *Op, + UINT32 BufferLength, + ACPI_OPERAND_OBJECT **ObjDescPtr) +{ + ACPI_PARSE_OBJECT *Arg; + ACPI_OPERAND_OBJECT *ObjDesc; + ACPI_PARSE_OBJECT *ByteList; + UINT32 ByteListLength = 0; + + + ACPI_FUNCTION_TRACE (DsBuildInternalBufferObj); + + + /* + * If we are evaluating a Named buffer object "Name (xxxx, Buffer)". + * The buffer object already exists (from the NS node), otherwise it must + * be created. + */ + ObjDesc = *ObjDescPtr; + if (!ObjDesc) + { + /* Create a new buffer object */ + + ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER); + *ObjDescPtr = ObjDesc; + if (!ObjDesc) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + } + + /* + * Second arg is the buffer data (optional) ByteList can be either + * individual bytes or a string initializer. In either case, a + * ByteList appears in the AML. + */ + Arg = Op->Common.Value.Arg; /* skip first arg */ + + ByteList = Arg->Named.Next; + if (ByteList) + { + if (ByteList->Common.AmlOpcode != AML_INT_BYTELIST_OP) + { + ACPI_ERROR ((AE_INFO, + "Expecting bytelist, got AML opcode %X in op %p", + ByteList->Common.AmlOpcode, ByteList)); + + AcpiUtRemoveReference (ObjDesc); + return (AE_TYPE); + } + + ByteListLength = (UINT32) ByteList->Common.Value.Integer; + } + + /* + * The buffer length (number of bytes) will be the larger of: + * 1) The specified buffer length and + * 2) The length of the initializer byte list + */ + ObjDesc->Buffer.Length = BufferLength; + if (ByteListLength > BufferLength) + { + ObjDesc->Buffer.Length = ByteListLength; + } + + /* Allocate the buffer */ + + if (ObjDesc->Buffer.Length == 0) + { + ObjDesc->Buffer.Pointer = NULL; + ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, + "Buffer defined with zero length in AML, creating\n")); + } + else + { + ObjDesc->Buffer.Pointer = ACPI_ALLOCATE_ZEROED ( + ObjDesc->Buffer.Length); + if (!ObjDesc->Buffer.Pointer) + { + AcpiUtDeleteObjectDesc (ObjDesc); + return_ACPI_STATUS (AE_NO_MEMORY); + } + + /* Initialize buffer from the ByteList (if present) */ + + if (ByteList) + { + ACPI_MEMCPY (ObjDesc->Buffer.Pointer, ByteList->Named.Data, + ByteListLength); + } + } + + ObjDesc->Buffer.Flags |= AOPOBJ_DATA_VALID; + Op->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjDesc); + return_ACPI_STATUS (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDsBuildInternalPackageObj + * + * PARAMETERS: WalkState - Current walk state + * Op - Parser object to be translated + * ElementCount - Number of elements in the package - this is + * the NumElements argument to Package() + * ObjDescPtr - Where the ACPI internal object is returned + * + * RETURN: Status + * + * DESCRIPTION: Translate a parser Op package object to the equivalent + * namespace object + * + * NOTE: The number of elements in the package will be always be the NumElements + * count, regardless of the number of elements in the package list. If + * NumElements is smaller, only that many package list elements are used. + * if NumElements is larger, the Package object is padded out with + * objects of type Uninitialized (as per ACPI spec.) + * + * Even though the ASL compilers do not allow NumElements to be smaller + * than the Package list length (for the fixed length package opcode), some + * BIOS code modifies the AML on the fly to adjust the NumElements, and + * this code compensates for that. This also provides compatibility with + * other AML interpreters. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDsBuildInternalPackageObj ( + ACPI_WALK_STATE *WalkState, + ACPI_PARSE_OBJECT *Op, + UINT32 ElementCount, + ACPI_OPERAND_OBJECT **ObjDescPtr) +{ + ACPI_PARSE_OBJECT *Arg; + ACPI_PARSE_OBJECT *Parent; + ACPI_OPERAND_OBJECT *ObjDesc = NULL; + ACPI_STATUS Status = AE_OK; + ACPI_NATIVE_UINT i; + UINT16 Index; + UINT16 ReferenceCount; + + + ACPI_FUNCTION_TRACE (DsBuildInternalPackageObj); + + + /* Find the parent of a possibly nested package */ + + Parent = Op->Common.Parent; + while ((Parent->Common.AmlOpcode == AML_PACKAGE_OP) || + (Parent->Common.AmlOpcode == AML_VAR_PACKAGE_OP)) + { + Parent = Parent->Common.Parent; + } + + /* + * If we are evaluating a Named package object "Name (xxxx, Package)", + * the package object already exists, otherwise it must be created. + */ + ObjDesc = *ObjDescPtr; + if (!ObjDesc) + { + ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PACKAGE); + *ObjDescPtr = ObjDesc; + if (!ObjDesc) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + + ObjDesc->Package.Node = Parent->Common.Node; + } + + /* + * Allocate the element array (array of pointers to the individual + * objects) based on the NumElements parameter. Add an extra pointer slot + * so that the list is always null terminated. + */ + ObjDesc->Package.Elements = ACPI_ALLOCATE_ZEROED ( + ((ACPI_SIZE) ElementCount + 1) * sizeof (void *)); + + if (!ObjDesc->Package.Elements) + { + AcpiUtDeleteObjectDesc (ObjDesc); + return_ACPI_STATUS (AE_NO_MEMORY); + } + + ObjDesc->Package.Count = ElementCount; + + /* + * Initialize the elements of the package, up to the NumElements count. + * Package is automatically padded with uninitialized (NULL) elements + * if NumElements is greater than the package list length. Likewise, + * Package is truncated if NumElements is less than the list length. + */ + Arg = Op->Common.Value.Arg; + Arg = Arg->Common.Next; + for (i = 0; Arg && (i < ElementCount); i++) + { + if (Arg->Common.AmlOpcode == AML_INT_RETURN_VALUE_OP) + { + /* This package element is already built, just get it */ + + ObjDesc->Package.Elements[i] = + ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, Arg->Common.Node); + } + else + { + Status = AcpiDsBuildInternalObject (WalkState, Arg, + &ObjDesc->Package.Elements[i]); + } + + if (*ObjDescPtr) + { + /* Existing package, get existing reference count */ + + ReferenceCount = (*ObjDescPtr)->Common.ReferenceCount; + if (ReferenceCount > 1) + { + /* Make new element ref count match original ref count */ + + for (Index = 0; Index < (ReferenceCount - 1); Index++) + { + AcpiUtAddReference ((ObjDesc->Package.Elements[i])); + } + } + } + + Arg = Arg->Common.Next; + } + + if (!Arg) + { + ACPI_DEBUG_PRINT ((ACPI_DB_INFO, + "Package List length larger than NumElements count (%X), truncated\n", + ElementCount)); + } + + ObjDesc->Package.Flags |= AOPOBJ_DATA_VALID; + Op->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjDesc); + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDsCreateNode + * + * PARAMETERS: WalkState - Current walk state + * Node - NS Node to be initialized + * Op - Parser object to be translated + * + * RETURN: Status + * + * DESCRIPTION: Create the object to be associated with a namespace node + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDsCreateNode ( + ACPI_WALK_STATE *WalkState, + ACPI_NAMESPACE_NODE *Node, + ACPI_PARSE_OBJECT *Op) +{ + ACPI_STATUS Status; + ACPI_OPERAND_OBJECT *ObjDesc; + + + ACPI_FUNCTION_TRACE_PTR (DsCreateNode, Op); + + + /* + * Because of the execution pass through the non-control-method + * parts of the table, we can arrive here twice. Only init + * the named object node the first time through + */ + if (AcpiNsGetAttachedObject (Node)) + { + return_ACPI_STATUS (AE_OK); + } + + if (!Op->Common.Value.Arg) + { + /* No arguments, there is nothing to do */ + + return_ACPI_STATUS (AE_OK); + } + + /* Build an internal object for the argument(s) */ + + Status = AcpiDsBuildInternalObject (WalkState, Op->Common.Value.Arg, + &ObjDesc); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Re-type the object according to its argument */ + + Node->Type = ACPI_GET_OBJECT_TYPE (ObjDesc); + + /* Attach obj to node */ + + Status = AcpiNsAttachObject (Node, ObjDesc, Node->Type); + + /* Remove local reference to the object */ + + AcpiUtRemoveReference (ObjDesc); + return_ACPI_STATUS (Status); +} + +#endif /* ACPI_NO_METHOD_EXECUTION */ + + +/******************************************************************************* + * + * FUNCTION: AcpiDsInitObjectFromOp + * + * PARAMETERS: WalkState - Current walk state + * Op - Parser op used to init the internal object + * Opcode - AML opcode associated with the object + * RetObjDesc - Namespace object to be initialized + * + * RETURN: Status + * + * DESCRIPTION: Initialize a namespace object from a parser Op and its + * associated arguments. The namespace object is a more compact + * representation of the Op and its arguments. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDsInitObjectFromOp ( + ACPI_WALK_STATE *WalkState, + ACPI_PARSE_OBJECT *Op, + UINT16 Opcode, + ACPI_OPERAND_OBJECT **RetObjDesc) +{ + const ACPI_OPCODE_INFO *OpInfo; + ACPI_OPERAND_OBJECT *ObjDesc; + ACPI_STATUS Status = AE_OK; + + + ACPI_FUNCTION_TRACE (DsInitObjectFromOp); + + + ObjDesc = *RetObjDesc; + OpInfo = AcpiPsGetOpcodeInfo (Opcode); + if (OpInfo->Class == AML_CLASS_UNKNOWN) + { + /* Unknown opcode */ + + return_ACPI_STATUS (AE_TYPE); + } + + /* Perform per-object initialization */ + + switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) + { + case ACPI_TYPE_BUFFER: + + /* + * Defer evaluation of Buffer TermArg operand + */ + ObjDesc->Buffer.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, + WalkState->Operands[0]); + ObjDesc->Buffer.AmlStart = Op->Named.Data; + ObjDesc->Buffer.AmlLength = Op->Named.Length; + break; + + + case ACPI_TYPE_PACKAGE: + + /* + * Defer evaluation of Package TermArg operand + */ + ObjDesc->Package.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, + WalkState->Operands[0]); + ObjDesc->Package.AmlStart = Op->Named.Data; + ObjDesc->Package.AmlLength = Op->Named.Length; + break; + + + case ACPI_TYPE_INTEGER: + + switch (OpInfo->Type) + { + case AML_TYPE_CONSTANT: + /* + * Resolve AML Constants here - AND ONLY HERE! + * All constants are integers. + * We mark the integer with a flag that indicates that it started + * life as a constant -- so that stores to constants will perform + * as expected (noop). ZeroOp is used as a placeholder for optional + * target operands. + */ + ObjDesc->Common.Flags = AOPOBJ_AML_CONSTANT; + + switch (Opcode) + { + case AML_ZERO_OP: + + ObjDesc->Integer.Value = 0; + break; + + case AML_ONE_OP: + + ObjDesc->Integer.Value = 1; + break; + + case AML_ONES_OP: + + ObjDesc->Integer.Value = ACPI_INTEGER_MAX; + + /* Truncate value if we are executing from a 32-bit ACPI table */ + +#ifndef ACPI_NO_METHOD_EXECUTION + AcpiExTruncateFor32bitTable (ObjDesc); +#endif + break; + + case AML_REVISION_OP: + + ObjDesc->Integer.Value = ACPI_CA_VERSION; + break; + + default: + + ACPI_ERROR ((AE_INFO, + "Unknown constant opcode %X", Opcode)); + Status = AE_AML_OPERAND_TYPE; + break; + } + break; + + + case AML_TYPE_LITERAL: + + ObjDesc->Integer.Value = Op->Common.Value.Integer; +#ifndef ACPI_NO_METHOD_EXECUTION + AcpiExTruncateFor32bitTable (ObjDesc); +#endif + break; + + + default: + ACPI_ERROR ((AE_INFO, "Unknown Integer type %X", + OpInfo->Type)); + Status = AE_AML_OPERAND_TYPE; + break; + } + break; + + + case ACPI_TYPE_STRING: + + ObjDesc->String.Pointer = Op->Common.Value.String; + ObjDesc->String.Length = (UINT32) ACPI_STRLEN (Op->Common.Value.String); + + /* + * The string is contained in the ACPI table, don't ever try + * to delete it + */ + ObjDesc->Common.Flags |= AOPOBJ_STATIC_POINTER; + break; + + + case ACPI_TYPE_METHOD: + break; + + + case ACPI_TYPE_LOCAL_REFERENCE: + + switch (OpInfo->Type) + { + case AML_TYPE_LOCAL_VARIABLE: + + /* Split the opcode into a base opcode + offset */ + + ObjDesc->Reference.Opcode = AML_LOCAL_OP; + ObjDesc->Reference.Offset = Opcode - AML_LOCAL_OP; + +#ifndef ACPI_NO_METHOD_EXECUTION + Status = AcpiDsMethodDataGetNode (AML_LOCAL_OP, + ObjDesc->Reference.Offset, + WalkState, + (ACPI_NAMESPACE_NODE **) &ObjDesc->Reference.Object); +#endif + break; + + + case AML_TYPE_METHOD_ARGUMENT: + + /* Split the opcode into a base opcode + offset */ + + ObjDesc->Reference.Opcode = AML_ARG_OP; + ObjDesc->Reference.Offset = Opcode - AML_ARG_OP; + +#ifndef ACPI_NO_METHOD_EXECUTION + Status = AcpiDsMethodDataGetNode (AML_ARG_OP, + ObjDesc->Reference.Offset, + WalkState, + (ACPI_NAMESPACE_NODE **) &ObjDesc->Reference.Object); +#endif + break; + + default: /* Other literals, etc.. */ + + if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP) + { + /* Node was saved in Op */ + + ObjDesc->Reference.Node = Op->Common.Node; + } + + ObjDesc->Reference.Opcode = Opcode; + break; + } + break; + + + default: + + ACPI_ERROR ((AE_INFO, "Unimplemented data type: %X", + ACPI_GET_OBJECT_TYPE (ObjDesc))); + + Status = AE_AML_OPERAND_TYPE; + break; + } + + return_ACPI_STATUS (Status); +} + + |
