--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: excreate - Named object creation
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2009, 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 __EXCREATE_C__
+
+#include "acpi.h"
+#include "accommon.h"
+#include "acinterp.h"
+#include "amlcode.h"
+#include "acnamesp.h"
+
+
+#define _COMPONENT ACPI_EXECUTER
+ ACPI_MODULE_NAME ("excreate")
+
+
+#ifndef ACPI_NO_METHOD_EXECUTION
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiExCreateAlias
+ *
+ * PARAMETERS: WalkState - Current state, contains operands
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new named alias
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiExCreateAlias (
+ ACPI_WALK_STATE *WalkState)
+{
+ ACPI_NAMESPACE_NODE *TargetNode;
+ ACPI_NAMESPACE_NODE *AliasNode;
+ ACPI_STATUS Status = AE_OK;
+
+
+ ACPI_FUNCTION_TRACE (ExCreateAlias);
+
+
+ /* Get the source/alias operands (both namespace nodes) */
+
+ AliasNode = (ACPI_NAMESPACE_NODE *) WalkState->Operands[0];
+ TargetNode = (ACPI_NAMESPACE_NODE *) WalkState->Operands[1];
+
+ if ((TargetNode->Type == ACPI_TYPE_LOCAL_ALIAS) ||
+ (TargetNode->Type == ACPI_TYPE_LOCAL_METHOD_ALIAS))
+ {
+ /*
+ * Dereference an existing alias so that we don't create a chain
+ * of aliases. With this code, we guarantee that an alias is
+ * always exactly one level of indirection away from the
+ * actual aliased name.
+ */
+ TargetNode = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, TargetNode->Object);
+ }
+
+ /*
+ * For objects that can never change (i.e., the NS node will
+ * permanently point to the same object), we can simply attach
+ * the object to the new NS node. For other objects (such as
+ * Integers, buffers, etc.), we have to point the Alias node
+ * to the original Node.
+ */
+ switch (TargetNode->Type)
+ {
+
+ /* For these types, the sub-object can change dynamically via a Store */
+
+ case ACPI_TYPE_INTEGER:
+ case ACPI_TYPE_STRING:
+ case ACPI_TYPE_BUFFER:
+ case ACPI_TYPE_PACKAGE:
+ case ACPI_TYPE_BUFFER_FIELD:
+
+ /*
+ * These types open a new scope, so we need the NS node in order to access
+ * any children.
+ */
+ case ACPI_TYPE_DEVICE:
+ case ACPI_TYPE_POWER:
+ case ACPI_TYPE_PROCESSOR:
+ case ACPI_TYPE_THERMAL:
+ case ACPI_TYPE_LOCAL_SCOPE:
+
+ /*
+ * The new alias has the type ALIAS and points to the original
+ * NS node, not the object itself.
+ */
+ AliasNode->Type = ACPI_TYPE_LOCAL_ALIAS;
+ AliasNode->Object = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, TargetNode);
+ break;
+
+ case ACPI_TYPE_METHOD:
+
+ /*
+ * Control method aliases need to be differentiated
+ */
+ AliasNode->Type = ACPI_TYPE_LOCAL_METHOD_ALIAS;
+ AliasNode->Object = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, TargetNode);
+ break;
+
+ default:
+
+ /* Attach the original source object to the new Alias Node */
+
+ /*
+ * The new alias assumes the type of the target, and it points
+ * to the same object. The reference count of the object has an
+ * additional reference to prevent deletion out from under either the
+ * target node or the alias Node
+ */
+ Status = AcpiNsAttachObject (AliasNode,
+ AcpiNsGetAttachedObject (TargetNode), TargetNode->Type);
+ break;
+ }
+
+ /* Since both operands are Nodes, we don't need to delete them */
+
+ return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiExCreateEvent
+ *
+ * PARAMETERS: WalkState - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new event object
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiExCreateEvent (
+ ACPI_WALK_STATE *WalkState)
+{
+ ACPI_STATUS Status;
+ ACPI_OPERAND_OBJECT *ObjDesc;
+
+
+ ACPI_FUNCTION_TRACE (ExCreateEvent);
+
+
+ ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_EVENT);
+ if (!ObjDesc)
+ {
+ Status = AE_NO_MEMORY;
+ goto Cleanup;
+ }
+
+ /*
+ * Create the actual OS semaphore, with zero initial units -- meaning
+ * that the event is created in an unsignalled state
+ */
+ Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT, 0,
+ &ObjDesc->Event.OsSemaphore);
+ if (ACPI_FAILURE (Status))
+ {
+ goto Cleanup;
+ }
+
+ /* Attach object to the Node */
+
+ Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) WalkState->Operands[0],
+ ObjDesc, ACPI_TYPE_EVENT);
+
+Cleanup:
+ /*
+ * Remove local reference to the object (on error, will cause deletion
+ * of both object and semaphore if present.)
+ */
+ AcpiUtRemoveReference (ObjDesc);
+ return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiExCreateMutex
+ *
+ * PARAMETERS: WalkState - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new mutex object
+ *
+ * Mutex (Name[0], SyncLevel[1])
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiExCreateMutex (
+ ACPI_WALK_STATE *WalkState)
+{
+ ACPI_STATUS Status = AE_OK;
+ ACPI_OPERAND_OBJECT *ObjDesc;
+
+
+ ACPI_FUNCTION_TRACE_PTR (ExCreateMutex, ACPI_WALK_OPERANDS);
+
+
+ /* Create the new mutex object */
+
+ ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_MUTEX);
+ if (!ObjDesc)
+ {
+ Status = AE_NO_MEMORY;
+ goto Cleanup;
+ }
+
+ /* Create the actual OS Mutex */
+
+ Status = AcpiOsCreateMutex (&ObjDesc->Mutex.OsMutex);
+ if (ACPI_FAILURE (Status))
+ {
+ goto Cleanup;
+ }
+
+ /* Init object and attach to NS node */
+
+ ObjDesc->Mutex.SyncLevel = (UINT8) WalkState->Operands[1]->Integer.Value;
+ ObjDesc->Mutex.Node = (ACPI_NAMESPACE_NODE *) WalkState->Operands[0];
+
+ Status = AcpiNsAttachObject (ObjDesc->Mutex.Node, ObjDesc, ACPI_TYPE_MUTEX);
+
+
+Cleanup:
+ /*
+ * Remove local reference to the object (on error, will cause deletion
+ * of both object and semaphore if present.)
+ */
+ AcpiUtRemoveReference (ObjDesc);
+ return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiExCreateRegion
+ *
+ * PARAMETERS: AmlStart - Pointer to the region declaration AML
+ * AmlLength - Max length of the declaration AML
+ * RegionSpace - SpaceID for the region
+ * WalkState - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new operation region object
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiExCreateRegion (
+ UINT8 *AmlStart,
+ UINT32 AmlLength,
+ UINT8 RegionSpace,
+ ACPI_WALK_STATE *WalkState)
+{
+ ACPI_STATUS Status;
+ ACPI_OPERAND_OBJECT *ObjDesc;
+ ACPI_NAMESPACE_NODE *Node;
+ ACPI_OPERAND_OBJECT *RegionObj2;
+
+
+ ACPI_FUNCTION_TRACE (ExCreateRegion);
+
+
+ /* Get the Namespace Node */
+
+ Node = WalkState->Op->Common.Node;
+
+ /*
+ * If the region object is already attached to this node,
+ * just return
+ */
+ if (AcpiNsGetAttachedObject (Node))
+ {
+ return_ACPI_STATUS (AE_OK);
+ }
+
+ /*
+ * Space ID must be one of the predefined IDs, or in the user-defined
+ * range
+ */
+ if ((RegionSpace >= ACPI_NUM_PREDEFINED_REGIONS) &&
+ (RegionSpace < ACPI_USER_REGION_BEGIN))
+ {
+ ACPI_ERROR ((AE_INFO, "Invalid AddressSpace type %X", RegionSpace));
+ return_ACPI_STATUS (AE_AML_INVALID_SPACE_ID);
+ }
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "Region Type - %s (%X)\n",
+ AcpiUtGetRegionName (RegionSpace), RegionSpace));
+
+ /* Create the region descriptor */
+
+ ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_REGION);
+ if (!ObjDesc)
+ {
+ Status = AE_NO_MEMORY;
+ goto Cleanup;
+ }
+
+ /*
+ * Remember location in AML stream of address & length
+ * operands since they need to be evaluated at run time.
+ */
+ RegionObj2 = ObjDesc->Common.NextObject;
+ RegionObj2->Extra.AmlStart = AmlStart;
+ RegionObj2->Extra.AmlLength = AmlLength;
+
+ /* Init the region from the operands */
+
+ ObjDesc->Region.SpaceId = RegionSpace;
+ ObjDesc->Region.Address = 0;
+ ObjDesc->Region.Length = 0;
+ ObjDesc->Region.Node = Node;
+
+ /* Install the new region object in the parent Node */
+
+ Status = AcpiNsAttachObject (Node, ObjDesc, ACPI_TYPE_REGION);
+
+
+Cleanup:
+
+ /* Remove local reference to the object */
+
+ AcpiUtRemoveReference (ObjDesc);
+ return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiExCreateProcessor
+ *
+ * PARAMETERS: WalkState - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new processor object and populate the fields
+ *
+ * Processor (Name[0], CpuID[1], PblockAddr[2], PblockLength[3])
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiExCreateProcessor (
+ ACPI_WALK_STATE *WalkState)
+{
+ ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
+ ACPI_OPERAND_OBJECT *ObjDesc;
+ ACPI_STATUS Status;
+
+
+ ACPI_FUNCTION_TRACE_PTR (ExCreateProcessor, WalkState);
+
+
+ /* Create the processor object */
+
+ ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PROCESSOR);
+ if (!ObjDesc)
+ {
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ /* Initialize the processor object from the operands */
+
+ ObjDesc->Processor.ProcId = (UINT8) Operand[1]->Integer.Value;
+ ObjDesc->Processor.Length = (UINT8) Operand[3]->Integer.Value;
+ ObjDesc->Processor.Address = (ACPI_IO_ADDRESS) Operand[2]->Integer.Value;
+
+ /* Install the processor object in the parent Node */
+
+ Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0],
+ ObjDesc, ACPI_TYPE_PROCESSOR);
+
+ /* Remove local reference to the object */
+
+ AcpiUtRemoveReference (ObjDesc);
+ return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiExCreatePowerResource
+ *
+ * PARAMETERS: WalkState - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new PowerResource object and populate the fields
+ *
+ * PowerResource (Name[0], SystemLevel[1], ResourceOrder[2])
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiExCreatePowerResource (
+ ACPI_WALK_STATE *WalkState)
+{
+ ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
+ ACPI_STATUS Status;
+ ACPI_OPERAND_OBJECT *ObjDesc;
+
+
+ ACPI_FUNCTION_TRACE_PTR (ExCreatePowerResource, WalkState);
+
+
+ /* Create the power resource object */
+
+ ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_POWER);
+ if (!ObjDesc)
+ {
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ /* Initialize the power object from the operands */
+
+ ObjDesc->PowerResource.SystemLevel = (UINT8) Operand[1]->Integer.Value;
+ ObjDesc->PowerResource.ResourceOrder = (UINT16) Operand[2]->Integer.Value;
+
+ /* Install the power resource object in the parent Node */
+
+ Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0],
+ ObjDesc, ACPI_TYPE_POWER);
+
+ /* Remove local reference to the object */
+
+ AcpiUtRemoveReference (ObjDesc);
+ return_ACPI_STATUS (Status);
+}
+#endif
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiExCreateMethod
+ *
+ * PARAMETERS: AmlStart - First byte of the method's AML
+ * AmlLength - AML byte count for this method
+ * WalkState - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new method object
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiExCreateMethod (
+ UINT8 *AmlStart,
+ UINT32 AmlLength,
+ ACPI_WALK_STATE *WalkState)
+{
+ ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
+ ACPI_OPERAND_OBJECT *ObjDesc;
+ ACPI_STATUS Status;
+ UINT8 MethodFlags;
+
+
+ ACPI_FUNCTION_TRACE_PTR (ExCreateMethod, WalkState);
+
+
+ /* Create a new method object */
+
+ ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_METHOD);
+ if (!ObjDesc)
+ {
+ Status = AE_NO_MEMORY;
+ goto Exit;
+ }
+
+ /* Save the method's AML pointer and length */
+
+ ObjDesc->Method.AmlStart = AmlStart;
+ ObjDesc->Method.AmlLength = AmlLength;
+
+ /*
+ * Disassemble the method flags. Split off the Arg Count
+ * for efficiency
+ */
+ MethodFlags = (UINT8) Operand[1]->Integer.Value;
+
+ ObjDesc->Method.MethodFlags = (UINT8) (MethodFlags & ~AML_METHOD_ARG_COUNT);
+ ObjDesc->Method.ParamCount = (UINT8) (MethodFlags & AML_METHOD_ARG_COUNT);
+
+ /*
+ * Get the SyncLevel. If method is serialized, a mutex will be
+ * created for this method when it is parsed.
+ */
+ if (MethodFlags & AML_METHOD_SERIALIZED)
+ {
+ /*
+ * ACPI 1.0: SyncLevel = 0
+ * ACPI 2.0: SyncLevel = SyncLevel in method declaration
+ */
+ ObjDesc->Method.SyncLevel = (UINT8)
+ ((MethodFlags & AML_METHOD_SYNC_LEVEL) >> 4);
+ }
+
+ /* Attach the new object to the method Node */
+
+ Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0],
+ ObjDesc, ACPI_TYPE_METHOD);
+
+ /* Remove local reference to the object */
+
+ AcpiUtRemoveReference (ObjDesc);
+
+Exit:
+ /* Remove a reference to the operand */
+
+ AcpiUtRemoveReference (Operand[1]);
+ return_ACPI_STATUS (Status);
+}
+
+
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