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Diffstat (limited to 'sys/contrib/dev/acpica/excreate.c')
| -rw-r--r-- | sys/contrib/dev/acpica/excreate.c | 884 |
1 files changed, 0 insertions, 884 deletions
diff --git a/sys/contrib/dev/acpica/excreate.c b/sys/contrib/dev/acpica/excreate.c deleted file mode 100644 index 5099cfb5199a..000000000000 --- a/sys/contrib/dev/acpica/excreate.c +++ /dev/null @@ -1,884 +0,0 @@ -/****************************************************************************** - * - * Module Name: amcreate - Named object creation - * $Revision: 50 $ - * - *****************************************************************************/ - -/****************************************************************************** - * - * 1. Copyright Notice - * - * Some or all of this work - Copyright (c) 1999, 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 __AMCREATE_C__ - -#include "acpi.h" -#include "acparser.h" -#include "acinterp.h" -#include "amlcode.h" -#include "acnamesp.h" -#include "acevents.h" -#include "acdispat.h" - - -#define _COMPONENT INTERPRETER - MODULE_NAME ("amcreate") - - -/******************************************************************************* - * - * FUNCTION: AcpiAmlExecCreateField - * - * PARAMETERS: Opcode - The opcode to be executed - * Operands - List of operands for the opcode - * - * RETURN: Status - * - * DESCRIPTION: Execute CreateField operators: CreateBitFieldOp, - * CreateByteFieldOp, CreateWordFieldOp, CreateDWordFieldOp, - * CreateFieldOp (which define fields in buffers) - * - * ALLOCATION: Deletes CreateFieldOp's count operand descriptor - * - * - * ACPI SPECIFICATION REFERENCES: - * DefCreateBitField := CreateBitFieldOp SrcBuf BitIdx NameString - * DefCreateByteField := CreateByteFieldOp SrcBuf ByteIdx NameString - * DefCreateDWordField := CreateDWordFieldOp SrcBuf ByteIdx NameString - * DefCreateField := CreateFieldOp SrcBuf BitIdx NumBits NameString - * DefCreateWordField := CreateWordFieldOp SrcBuf ByteIdx NameString - * BitIndex := TermArg=>Integer - * ByteIndex := TermArg=>Integer - * NumBits := TermArg=>Integer - * SourceBuff := TermArg=>Buffer - * - ******************************************************************************/ - - -ACPI_STATUS -AcpiAmlExecCreateField ( - UINT8 *AmlPtr, - UINT32 AmlLength, - ACPI_NAMESPACE_NODE *Node, - ACPI_WALK_STATE *WalkState) -{ - ACPI_STATUS Status; - ACPI_OPERAND_OBJECT *ObjDesc; - ACPI_OPERAND_OBJECT *TmpDesc; - - - FUNCTION_TRACE ("AmlExecCreateField"); - - - /* Create the region descriptor */ - - ObjDesc = AcpiCmCreateInternalObject (ACPI_TYPE_FIELD_UNIT); - if (!ObjDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - /* Construct the field object */ - - ObjDesc->FieldUnit.Access = (UINT8) ACCESS_ANY_ACC; - ObjDesc->FieldUnit.LockRule = (UINT8) GLOCK_NEVER_LOCK; - ObjDesc->FieldUnit.UpdateRule = (UINT8) UPDATE_PRESERVE; - - /* - * Allocate a method object for this field unit - */ - - ObjDesc->FieldUnit.Extra = AcpiCmCreateInternalObject ( - INTERNAL_TYPE_EXTRA); - if (!ObjDesc->FieldUnit.Extra) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - /* - * Remember location in AML stream of the field unit - * opcode and operands -- since the buffer and index - * operands must be evaluated. - */ - - ObjDesc->FieldUnit.Extra->Extra.Pcode = AmlPtr; - ObjDesc->FieldUnit.Extra->Extra.PcodeLength = AmlLength; - ObjDesc->FieldUnit.Node = Node; - - - /* - * This operation is supposed to cause the destination Name to refer - * to the defined FieldUnit -- it must not store the constructed - * FieldUnit object (or its current value) in some location that the - * Name may already be pointing to. So, if the Name currently contains - * a reference which would cause AcpiAmlExecStore() to perform an indirect - * store rather than setting the value of the Name itself, clobber that - * reference before calling AcpiAmlExecStore(). - */ - - /* Type of Name's existing value */ - - switch (AcpiNsGetType (Node)) - { - - case ACPI_TYPE_FIELD_UNIT: - - case INTERNAL_TYPE_ALIAS: - case INTERNAL_TYPE_BANK_FIELD: - case INTERNAL_TYPE_DEF_FIELD: - case INTERNAL_TYPE_INDEX_FIELD: - - TmpDesc = AcpiNsGetAttachedObject (Node); - if (TmpDesc) - { - /* - * There is an existing object here; delete it and zero out the - * object field within the Node - */ - - DUMP_PATHNAME (Node, - "AmlExecCreateField: Removing Current Reference", - TRACE_BFIELD, _COMPONENT); - - DUMP_ENTRY (Node, TRACE_BFIELD); - DUMP_STACK_ENTRY (TmpDesc); - - AcpiCmRemoveReference (TmpDesc); - AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Node, NULL, - ACPI_TYPE_ANY); - } - - /* Set the type to ANY (or the store below will fail) */ - - ((ACPI_NAMESPACE_NODE *) Node)->Type = ACPI_TYPE_ANY; - - break; - - - default: - - break; - } - - - /* Store constructed field descriptor in result location */ - - Status = AcpiAmlExecStore (ObjDesc, (ACPI_OPERAND_OBJECT *) Node, WalkState); - - /* - * If the field descriptor was not physically stored (or if a failure - * above), we must delete it - */ - if (ObjDesc->Common.ReferenceCount <= 1) - { - AcpiCmRemoveReference (ObjDesc); - } - - - return_ACPI_STATUS (AE_OK); - - -Cleanup: - - /* Delete region object and method subobject */ - - if (ObjDesc) - { - /* Remove deletes both objects! */ - - AcpiCmRemoveReference (ObjDesc); - ObjDesc = NULL; - } - - return_ACPI_STATUS (Status); -} - - -/***************************************************************************** - * - * FUNCTION: AcpiAmlExecCreateAlias - * - * PARAMETERS: Operands - List of operands for the opcode - * - * RETURN: Status - * - * DESCRIPTION: Create a new named alias - * - ****************************************************************************/ - -ACPI_STATUS -AcpiAmlExecCreateAlias ( - ACPI_WALK_STATE *WalkState) -{ - ACPI_NAMESPACE_NODE *SourceNode; - ACPI_NAMESPACE_NODE *AliasNode; - ACPI_STATUS Status; - - - FUNCTION_TRACE ("AmlExecCreateAlias"); - - - /* Get the source/alias operands (both NTEs) */ - - Status = AcpiDsObjStackPopObject ((ACPI_OPERAND_OBJECT **) &SourceNode, - WalkState); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - /* - * Don't pop it, it gets removed in the calling routine - */ - - AliasNode = AcpiDsObjStackGetValue (0, WalkState); - - /* Add an additional reference to the object */ - - AcpiCmAddReference (SourceNode->Object); - - /* - * Attach the original source Node to the new Alias Node. - */ - Status = AcpiNsAttachObject (AliasNode, SourceNode->Object, - SourceNode->Type); - - - /* - * The new alias assumes the type of the source, but it points - * to the same object. The reference count of the object has two - * additional references to prevent deletion out from under either the - * source or the alias Node - */ - - /* Since both operands are NTEs, we don't need to delete them */ - - return_ACPI_STATUS (Status); -} - - -/***************************************************************************** - * - * FUNCTION: AcpiAmlExecCreateEvent - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Create a new event object - * - ****************************************************************************/ - -ACPI_STATUS -AcpiAmlExecCreateEvent ( - ACPI_WALK_STATE *WalkState) -{ - ACPI_STATUS Status; - ACPI_OPERAND_OBJECT *ObjDesc; - - - FUNCTION_TRACE ("AmlExecCreateEvent"); - - - BREAKPOINT3; - - ObjDesc = AcpiCmCreateInternalObject (ACPI_TYPE_EVENT); - if (!ObjDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - /* Create the actual OS semaphore */ - - /* TBD: [Investigate] should be created with 0 or 1 units? */ - - Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT, 1, - &ObjDesc->Event.Semaphore); - if (ACPI_FAILURE (Status)) - { - AcpiCmRemoveReference (ObjDesc); - goto Cleanup; - } - - /* Attach object to the Node */ - - Status = AcpiNsAttachObject (AcpiDsObjStackGetValue (0, WalkState), - ObjDesc, (UINT8) ACPI_TYPE_EVENT); - if (ACPI_FAILURE (Status)) - { - AcpiOsDeleteSemaphore (ObjDesc->Event.Semaphore); - AcpiCmRemoveReference (ObjDesc); - goto Cleanup; - } - - -Cleanup: - - return_ACPI_STATUS (Status); -} - - -/***************************************************************************** - * - * FUNCTION: AcpiAmlExecCreateMutex - * - * PARAMETERS: InterpreterMode - Current running mode (load1/Load2/Exec) - * Operands - List of operands for the opcode - * - * RETURN: Status - * - * DESCRIPTION: Create a new mutex object - * - ****************************************************************************/ - -ACPI_STATUS -AcpiAmlExecCreateMutex ( - ACPI_WALK_STATE *WalkState) -{ - ACPI_STATUS Status = AE_OK; - ACPI_OPERAND_OBJECT *SyncDesc; - ACPI_OPERAND_OBJECT *ObjDesc; - - - FUNCTION_TRACE_PTR ("AmlExecCreateMutex", WALK_OPERANDS); - - - /* Get the operand */ - - Status = AcpiDsObjStackPopObject (&SyncDesc, WalkState); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - /* Attempt to allocate a new object */ - - ObjDesc = AcpiCmCreateInternalObject (ACPI_TYPE_MUTEX); - if (!ObjDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - /* Create the actual OS semaphore */ - - Status = AcpiOsCreateSemaphore (1, 1, &ObjDesc->Mutex.Semaphore); - if (ACPI_FAILURE (Status)) - { - AcpiCmRemoveReference (ObjDesc); - goto Cleanup; - } - - ObjDesc->Mutex.SyncLevel = (UINT8) SyncDesc->Number.Value; - - /* ObjDesc was on the stack top, and the name is below it */ - - Status = AcpiNsAttachObject (AcpiDsObjStackGetValue (0, WalkState), - ObjDesc, (UINT8) ACPI_TYPE_MUTEX); - if (ACPI_FAILURE (Status)) - { - AcpiOsDeleteSemaphore (ObjDesc->Mutex.Semaphore); - AcpiCmRemoveReference (ObjDesc); - goto Cleanup; - } - - -Cleanup: - - /* Always delete the operand */ - - AcpiCmRemoveReference (SyncDesc); - - return_ACPI_STATUS (Status); -} - - -/***************************************************************************** - * - * FUNCTION: AcpiAmlExecCreateRegion - * - * PARAMETERS: AmlPtr - Pointer to the region declaration AML - * AmlLength - Max length of the declaration AML - * Operands - List of operands for the opcode - * InterpreterMode - Load1/Load2/Execute - * - * RETURN: Status - * - * DESCRIPTION: Create a new operation region object - * - ****************************************************************************/ - -ACPI_STATUS -AcpiAmlExecCreateRegion ( - UINT8 *AmlPtr, - UINT32 AmlLength, - UINT32 RegionSpace, - ACPI_WALK_STATE *WalkState) -{ - ACPI_STATUS Status; - ACPI_OPERAND_OBJECT *ObjDesc; - ACPI_NAMESPACE_NODE *Node; - - - FUNCTION_TRACE ("AmlExecCreateRegion"); - - - if (RegionSpace >= NUM_REGION_TYPES) - { - /* TBD: [Future] In ACPI 2.0, valid region space - * includes types 0-6 (Adding CMOS and PCIBARTarget). - * Also, types 0x80-0xff are defined as "OEM Region - * Space handler" - * - * Should this return an error, or should we just keep - * going? How do we handle the OEM region handlers? - */ - REPORT_WARNING (("Invalid AddressSpace type %X\n", RegionSpace)); - } - - DEBUG_PRINT (TRACE_LOAD, ("AmlDoNode: Region Type [%s]\n", - AcpiGbl_RegionTypes[RegionSpace])); - - - /* Get the Node from the object stack */ - - Node = (ACPI_NAMESPACE_NODE *) AcpiDsObjStackGetValue (0, WalkState); - - /* Create the region descriptor */ - - ObjDesc = AcpiCmCreateInternalObject (ACPI_TYPE_REGION); - if (!ObjDesc) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - /* - * Allocate a method object for this region. - */ - - ObjDesc->Region.Extra = AcpiCmCreateInternalObject ( - INTERNAL_TYPE_EXTRA); - if (!ObjDesc->Region.Extra) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - /* - * Remember location in AML stream of address & length - * operands since they need to be evaluated at run time. - */ - - ObjDesc->Region.Extra->Extra.Pcode = AmlPtr; - ObjDesc->Region.Extra->Extra.PcodeLength = AmlLength; - - /* Init the region from the operands */ - - ObjDesc->Region.SpaceId = (UINT8) RegionSpace; - ObjDesc->Region.Address = 0; - ObjDesc->Region.Length = 0; - - - /* Install the new region object in the parent Node */ - - ObjDesc->Region.Node = Node; - - Status = AcpiNsAttachObject (Node, ObjDesc, - (UINT8) ACPI_TYPE_REGION); - - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - - /* - * If we have a valid region, initialize it - * Namespace is NOT locked at this point. - */ - - Status = AcpiEvInitializeRegion (ObjDesc, FALSE); - - if (ACPI_FAILURE (Status)) - { - /* - * If AE_NOT_EXIST is returned, it is not fatal - * because many regions get created before a handler - * is installed for said region. - */ - if (AE_NOT_EXIST == Status) - { - Status = AE_OK; - } - } - -Cleanup: - - if (ACPI_FAILURE (Status)) - { - /* Delete region object and method subobject */ - - if (ObjDesc) - { - /* Remove deletes both objects! */ - - AcpiCmRemoveReference (ObjDesc); - ObjDesc = NULL; - } - } - - return_ACPI_STATUS (Status); -} - - -/***************************************************************************** - * - * FUNCTION: AcpiAmlExecCreateProcessor - * - * PARAMETERS: Op - Op containing the Processor definition and - * args - * ProcessorNTE - Node for the containing Node - * - * RETURN: Status - * - * DESCRIPTION: Create a new processor object and populate the fields - * - ****************************************************************************/ - -ACPI_STATUS -AcpiAmlExecCreateProcessor ( - ACPI_PARSE_OBJECT *Op, - ACPI_HANDLE ProcessorNTE) -{ - ACPI_STATUS Status; - ACPI_PARSE_OBJECT *Arg; - ACPI_OPERAND_OBJECT *ObjDesc; - - - FUNCTION_TRACE_PTR ("AmlExecCreateProcessor", Op); - - - ObjDesc = AcpiCmCreateInternalObject (ACPI_TYPE_PROCESSOR); - if (!ObjDesc) - { - Status = AE_NO_MEMORY; - return_ACPI_STATUS (Status); - } - - /* Install the new processor object in the parent Node */ - - Status = AcpiNsAttachObject (ProcessorNTE, ObjDesc, - (UINT8) ACPI_TYPE_PROCESSOR); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS(Status); - } - - Arg = Op->Value.Arg; - - /* check existence */ - - if (!Arg) - { - Status = AE_AML_NO_OPERAND; - return_ACPI_STATUS (Status); - } - - /* First arg is the Processor ID */ - - ObjDesc->Processor.ProcId = (UINT8) Arg->Value.Integer; - - /* Move to next arg and check existence */ - - Arg = Arg->Next; - if (!Arg) - { - Status = AE_AML_NO_OPERAND; - return_ACPI_STATUS (Status); - } - - /* Second arg is the PBlock Address */ - - ObjDesc->Processor.Address = (ACPI_IO_ADDRESS) Arg->Value.Integer; - - /* Move to next arg and check existence */ - - Arg = Arg->Next; - if (!Arg) - { - Status = AE_AML_NO_OPERAND; - return_ACPI_STATUS (Status); - } - - /* Third arg is the PBlock Length */ - - ObjDesc->Processor.Length = (UINT8) Arg->Value.Integer; - - return_ACPI_STATUS (AE_OK); -} - - -/***************************************************************************** - * - * FUNCTION: AcpiAmlExecCreatePowerResource - * - * PARAMETERS: Op - Op containing the PowerResource definition - * and args - * PowerResNTE - Node for the containing Node - * - * RETURN: Status - * - * DESCRIPTION: Create a new PowerResource object and populate the fields - * - ****************************************************************************/ - -ACPI_STATUS -AcpiAmlExecCreatePowerResource ( - ACPI_PARSE_OBJECT *Op, - ACPI_HANDLE PowerResNTE) -{ - ACPI_STATUS Status; - ACPI_PARSE_OBJECT *Arg; - ACPI_OPERAND_OBJECT *ObjDesc; - - - FUNCTION_TRACE_PTR ("AmlExecCreatePowerResource", Op); - - - ObjDesc = AcpiCmCreateInternalObject (ACPI_TYPE_POWER); - if (!ObjDesc) - { - Status = AE_NO_MEMORY; - return_ACPI_STATUS (Status); - } - - /* Install the new power resource object in the parent Node */ - - Status = AcpiNsAttachObject (PowerResNTE, ObjDesc, - (UINT8) ACPI_TYPE_POWER); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS(Status); - } - - Arg = Op->Value.Arg; - - /* check existence */ - - if (!Arg) - { - Status = AE_AML_NO_OPERAND; - return_ACPI_STATUS (Status); - } - - /* First arg is the SystemLevel */ - - ObjDesc->PowerResource.SystemLevel = (UINT8) Arg->Value.Integer; - - /* Move to next arg and check existence */ - - Arg = Arg->Next; - if (!Arg) - { - Status = AE_AML_NO_OPERAND; - return_ACPI_STATUS (Status); - } - - /* Second arg is the PBlock Address */ - - ObjDesc->PowerResource.ResourceOrder = (UINT16) Arg->Value.Integer; - - return_ACPI_STATUS (AE_OK); -} - - -/***************************************************************************** - * - * FUNCTION: AcpiAmlExecCreateMethod - * - * PARAMETERS: AmlPtr - First byte of the method's AML - * AmlLength - AML byte count for this method - * MethodFlags - AML method flag byte - * Method - Method Node - * - * RETURN: Status - * - * DESCRIPTION: Create a new method object - * - ****************************************************************************/ - -ACPI_STATUS -AcpiAmlExecCreateMethod ( - UINT8 *AmlPtr, - UINT32 AmlLength, - UINT32 MethodFlags, - ACPI_HANDLE Method) -{ - ACPI_OPERAND_OBJECT *ObjDesc; - ACPI_STATUS Status; - - - FUNCTION_TRACE_PTR ("AmlExecCreateMethod", Method); - - - /* Create a new method object */ - - ObjDesc = AcpiCmCreateInternalObject (ACPI_TYPE_METHOD); - if (!ObjDesc) - { - return_ACPI_STATUS (AE_NO_MEMORY); - } - - /* Get the method's AML pointer/length from the Op */ - - ObjDesc->Method.Pcode = AmlPtr; - ObjDesc->Method.PcodeLength = AmlLength; - - /* - * First argument is the Method Flags (contains parameter count for the - * method) - */ - - ObjDesc->Method.MethodFlags = (UINT8) MethodFlags; - ObjDesc->Method.ParamCount = (UINT8) (MethodFlags & - METHOD_FLAGS_ARG_COUNT); - - /* - * Get the concurrency count. If required, a semaphore will be - * created for this method when it is parsed. - * - * TBD: [Future] for APCI 2.0, there will be a SyncLevel value, not - * just a flag - * Concurrency = SyncLevel + 1;. - */ - - if (MethodFlags & METHOD_FLAGS_SERIALIZED) - { - ObjDesc->Method.Concurrency = 1; - } - - else - { - ObjDesc->Method.Concurrency = INFINITE_CONCURRENCY; - } - - /* Attach the new object to the method Node */ - - Status = AcpiNsAttachObject (Method, ObjDesc, (UINT8) ACPI_TYPE_METHOD); - if (ACPI_FAILURE (Status)) - { - AcpiCmDeleteObjectDesc (ObjDesc); - } - - return_ACPI_STATUS (Status); -} - - |