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Diffstat (limited to 'sys/contrib/dev/acpica/dsobject.c')
| -rw-r--r-- | sys/contrib/dev/acpica/dsobject.c | 907 |
1 files changed, 907 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..a81a830 --- /dev/null +++ b/sys/contrib/dev/acpica/dsobject.c @@ -0,0 +1,907 @@ +/****************************************************************************** + * + * Module Name: dsobject - Dispatcher object management routines + * $Revision: 110 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2002, 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 "acpi.h" +#include "acparser.h" +#include "amlcode.h" +#include "acdispat.h" +#include "acnamesp.h" +#include "acinterp.h" + +#define _COMPONENT ACPI_DISPATCHER + ACPI_MODULE_NAME ("dsobject") + + +#ifndef ACPI_NO_METHOD_EXECUTION +/******************************************************************************* + * + * FUNCTION: AcpiDsInitOneObject + * + * PARAMETERS: ObjHandle - Node + * Level - Current nesting level + * Context - Points to a init info struct + * ReturnValue - Not used + * + * RETURN: Status + * + * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object + * within the namespace. + * + * Currently, the only objects that require initialization are: + * 1) Methods + * 2) Operation Regions + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDsInitOneObject ( + ACPI_HANDLE ObjHandle, + UINT32 Level, + void *Context, + void **ReturnValue) +{ + ACPI_OBJECT_TYPE Type; + ACPI_STATUS Status; + ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context; + + + ACPI_FUNCTION_NAME ("DsInitOneObject"); + + + /* + * We are only interested in objects owned by the table that + * was just loaded + */ + if (((ACPI_NAMESPACE_NODE *) ObjHandle)->OwnerId != + Info->TableDesc->TableId) + { + return (AE_OK); + } + + Info->ObjectCount++; + + /* And even then, we are only interested in a few object types */ + + Type = AcpiNsGetType (ObjHandle); + + switch (Type) + { + case ACPI_TYPE_REGION: + + Status = AcpiDsInitializeRegion (ObjHandle); + if (ACPI_FAILURE (Status)) + { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Region %p [%4.4s] - Init failure, %s\n", + ObjHandle, ((ACPI_NAMESPACE_NODE *) ObjHandle)->Name.Ascii, + AcpiFormatException (Status))); + } + + Info->OpRegionCount++; + break; + + + case ACPI_TYPE_METHOD: + + Info->MethodCount++; + + if (!(AcpiDbgLevel & ACPI_LV_INIT)) + { + ACPI_DEBUG_PRINT_RAW ((ACPI_DB_OK, ".")); + } + + /* + * Set the execution data width (32 or 64) based upon the + * revision number of the parent ACPI table. + * TBD: This is really for possible future support of integer width + * on a per-table basis. Currently, we just use a global for the width. + */ + if (Info->TableDesc->Pointer->Revision == 1) + { + ((ACPI_NAMESPACE_NODE *) ObjHandle)->Flags |= ANOBJ_DATA_WIDTH_32; + } + + /* + * Always parse methods to detect errors, we may delete + * the parse tree below + */ + Status = AcpiDsParseMethod (ObjHandle); + if (ACPI_FAILURE (Status)) + { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Method %p [%4.4s] - parse failure, %s\n", + ObjHandle, ((ACPI_NAMESPACE_NODE *) ObjHandle)->Name.Ascii, + AcpiFormatException (Status))); + + /* This parse failed, but we will continue parsing more methods */ + + break; + } + + /* + * Delete the parse tree. We simple re-parse the method + * for every execution since there isn't much overhead + */ + AcpiNsDeleteNamespaceSubtree (ObjHandle); + AcpiNsDeleteNamespaceByOwner (((ACPI_NAMESPACE_NODE *) ObjHandle)->Object->Method.OwningId); + break; + + + case ACPI_TYPE_DEVICE: + + Info->DeviceCount++; + break; + + + default: + break; + } + + /* + * We ignore errors from above, and always return OK, since + * we don't want to abort the walk on a single error. + */ + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDsInitializeObjects + * + * PARAMETERS: TableDesc - Descriptor for parent ACPI table + * StartNode - Root of subtree to be initialized. + * + * RETURN: Status + * + * DESCRIPTION: Walk the namespace starting at "StartNode" and perform any + * necessary initialization on the objects found therein + * + ******************************************************************************/ + +ACPI_STATUS +AcpiDsInitializeObjects ( + ACPI_TABLE_DESC *TableDesc, + ACPI_NAMESPACE_NODE *StartNode) +{ + ACPI_STATUS Status; + ACPI_INIT_WALK_INFO Info; + + + ACPI_FUNCTION_TRACE ("DsInitializeObjects"); + + + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "**** Starting initialization of namespace objects ****\n")); + ACPI_DEBUG_PRINT_RAW ((ACPI_DB_OK, "Parsing Methods:")); + + Info.MethodCount = 0; + Info.OpRegionCount = 0; + Info.ObjectCount = 0; + Info.DeviceCount = 0; + Info.TableDesc = TableDesc; + + /* Walk entire namespace from the supplied root */ + + Status = AcpiWalkNamespace (ACPI_TYPE_ANY, StartNode, ACPI_UINT32_MAX, + AcpiDsInitOneObject, &Info, NULL); + if (ACPI_FAILURE (Status)) + { + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "WalkNamespace failed, %s\n", + AcpiFormatException (Status))); + } + + ACPI_DEBUG_PRINT_RAW ((ACPI_DB_OK, + "\nTable [%4.4s] - %hd Objects with %hd Devices %hd Methods %hd Regions\n", + TableDesc->Pointer->Signature, Info.ObjectCount, + Info.DeviceCount, Info.MethodCount, Info.OpRegionCount)); + + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "%hd Methods, %hd Regions\n", Info.MethodCount, Info.OpRegionCount)); + + return_ACPI_STATUS (AE_OK); +} + + +/***************************************************************************** + * + * 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! + * + ****************************************************************************/ + +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 an 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_NAMESPACE_NODE **) &(Op->Common.Node)); + + if (ACPI_FAILURE (Status)) + { + ACPI_REPORT_NSERROR (Op->Common.Value.String, Status); + return_ACPI_STATUS (Status); + } + } + } + + /* Create and init the 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"); + + + ObjDesc = *ObjDescPtr; + if (ObjDesc) + { + /* + * We are evaluating a Named buffer object "Name (xxxx, Buffer)". + * The buffer object already exists (from the NS node) + */ + } + else + { + /* 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_DEBUG_PRINT ((ACPI_DB_ERROR, + "Expecting bytelist, got AML opcode %X in op %p\n", + ByteList->Common.AmlOpcode, ByteList)); + + AcpiUtRemoveReference (ObjDesc); + return (AE_TYPE); + } + + ByteListLength = ByteList->Common.Value.Integer32; + } + + /* + * 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_REPORT_WARNING (("Buffer created with zero length in AML\n")); + return_ACPI_STATUS (AE_OK); + } + + ObjDesc->Buffer.Pointer = ACPI_MEM_CALLOCATE ( + 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_NAMESPACE_NODE *) ObjDesc; + return_ACPI_STATUS (AE_OK); +} + + +/***************************************************************************** + * + * FUNCTION: AcpiDsBuildInternalPackageObj + * + * PARAMETERS: WalkState - Current walk state + * Op - Parser object to be translated + * PackageLength - Number of elements in the package + * ObjDescPtr - Where the ACPI internal object is returned + * + * RETURN: Status + * + * DESCRIPTION: Translate a parser Op package object to the equivalent + * namespace object + * + ****************************************************************************/ + +ACPI_STATUS +AcpiDsBuildInternalPackageObj ( + ACPI_WALK_STATE *WalkState, + ACPI_PARSE_OBJECT *Op, + UINT32 PackageLength, + ACPI_OPERAND_OBJECT **ObjDescPtr) +{ + ACPI_PARSE_OBJECT *Arg; + ACPI_PARSE_OBJECT *Parent; + ACPI_OPERAND_OBJECT *ObjDesc = NULL; + UINT32 PackageListLength; + ACPI_STATUS Status = AE_OK; + UINT32 i; + + + 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; + } + + ObjDesc = *ObjDescPtr; + if (ObjDesc) + { + /* + * We are evaluating a Named package object "Name (xxxx, Package)". + * Get the existing package object from the NS node + */ + } + else + { + ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PACKAGE); + *ObjDescPtr = ObjDesc; + if (!ObjDesc) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + + ObjDesc->Package.Node = Parent->Common.Node; + } + + ObjDesc->Package.Count = PackageLength; + + /* Count the number of items in the package list */ + + PackageListLength = 0; + Arg = Op->Common.Value.Arg; + Arg = Arg->Common.Next; + while (Arg) + { + PackageListLength++; + Arg = Arg->Common.Next; + } + + /* + * The package length (number of elements) will be the greater + * of the specified length and the length of the initializer list + */ + if (PackageListLength > PackageLength) + { + ObjDesc->Package.Count = PackageListLength; + } + + /* + * Allocate the pointer array (array of pointers to the + * individual objects). Add an extra pointer slot so + * that the list is always null terminated. + */ + ObjDesc->Package.Elements = ACPI_MEM_CALLOCATE ( + ((ACPI_SIZE) ObjDesc->Package.Count + 1) * sizeof (void *)); + + if (!ObjDesc->Package.Elements) + { + AcpiUtDeleteObjectDesc (ObjDesc); + return_ACPI_STATUS (AE_NO_MEMORY); + } + + /* + * Now init the elements of the package + */ + i = 0; + Arg = Op->Common.Value.Arg; + Arg = Arg->Common.Next; + while (Arg) + { + if (Arg->Common.AmlOpcode == AML_INT_RETURN_VALUE_OP) + { + /* Object (package or buffer) is already built */ + + ObjDesc->Package.Elements[i] = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, Arg->Common.Node); + } + else + { + Status = AcpiDsBuildInternalObject (WalkState, Arg, + &ObjDesc->Package.Elements[i]); + } + + i++; + Arg = Arg->Common.Next; + } + + ObjDesc->Package.Flags |= AOPOBJ_DATA_VALID; + Op->Common.Node = (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 it's 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_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_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_SUPPORT_LEVEL; + break; + + default: + + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown constant opcode %X\n", Opcode)); + Status = AE_AML_OPERAND_TYPE; + break; + } + break; + + + case AML_TYPE_LITERAL: + + ObjDesc->Integer.Value = Op->Common.Value.Integer; + break; + + + default: + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown Integer type %X\n", 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; + 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_DEBUG_PRINT ((ACPI_DB_ERROR, "Unimplemented data type: %X\n", + ACPI_GET_OBJECT_TYPE (ObjDesc))); + + Status = AE_AML_OPERAND_TYPE; + break; + } + + return_ACPI_STATUS (Status); +} + + |
