| 0,0 → 1,636 |
|---|
| /****************************************************************************** |
| * |
| * Module Name: excreate - Named object creation |
| * |
| *****************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * 1. Copyright Notice |
| * |
| * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp. |
| * All rights reserved. |
| * |
| * 2. License |
| * |
| * 2.1. This is your license from Intel Corp. under its intellectual property |
| * rights. You may have additional license terms from the party that provided |
| * you this software, covering your right to use that party's intellectual |
| * property rights. |
| * |
| * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a |
| * copy of the source code appearing in this file ("Covered Code") an |
| * irrevocable, perpetual, worldwide license under Intel's copyrights in the |
| * base code distributed originally by Intel ("Original Intel Code") to copy, |
| * make derivatives, distribute, use and display any portion of the Covered |
| * Code in any form, with the right to sublicense such rights; and |
| * |
| * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent |
| * license (with the right to sublicense), under only those claims of Intel |
| * patents that are infringed by the Original Intel Code, to make, use, sell, |
| * offer to sell, and import the Covered Code and derivative works thereof |
| * solely to the minimum extent necessary to exercise the above copyright |
| * license, and in no event shall the patent license extend to any additions |
| * to or modifications of the Original Intel Code. No other license or right |
| * is granted directly or by implication, estoppel or otherwise; |
| * |
| * The above copyright and patent license is granted only if the following |
| * conditions are met: |
| * |
| * 3. Conditions |
| * |
| * 3.1. Redistribution of Source with Rights to Further Distribute Source. |
| * Redistribution of source code of any substantial portion of the Covered |
| * Code or modification with rights to further distribute source must include |
| * the above Copyright Notice, the above License, this list of Conditions, |
| * and the following Disclaimer and Export Compliance provision. In addition, |
| * Licensee must cause all Covered Code to which Licensee contributes to |
| * contain a file documenting the changes Licensee made to create that Covered |
| * Code and the date of any change. Licensee must include in that file the |
| * documentation of any changes made by any predecessor Licensee. Licensee |
| * must include a prominent statement that the modification is derived, |
| * directly or indirectly, from Original Intel Code. |
| * |
| * 3.2. Redistribution of Source with no Rights to Further Distribute Source. |
| * Redistribution of source code of any substantial portion of the Covered |
| * Code or modification without rights to further distribute source must |
| * include the following Disclaimer and Export Compliance provision in the |
| * documentation and/or other materials provided with distribution. In |
| * addition, Licensee may not authorize further sublicense of source of any |
| * portion of the Covered Code, and must include terms to the effect that the |
| * license from Licensee to its licensee is limited to the intellectual |
| * property embodied in the software Licensee provides to its licensee, and |
| * not to intellectual property embodied in modifications its licensee may |
| * make. |
| * |
| * 3.3. Redistribution of Executable. Redistribution in executable form of any |
| * substantial portion of the Covered Code or modification must reproduce the |
| * above Copyright Notice, and the following Disclaimer and Export Compliance |
| * provision in the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3.4. Intel retains all right, title, and interest in and to the Original |
| * Intel Code. |
| * |
| * 3.5. Neither the name Intel nor any other trademark owned or controlled by |
| * Intel shall be used in advertising or otherwise to promote the sale, use or |
| * other dealings in products derived from or relating to the Covered Code |
| * without prior written authorization from Intel. |
| * |
| * 4. Disclaimer and Export Compliance |
| * |
| * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED |
| * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE |
| * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, |
| * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY |
| |
| * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY |
| * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A |
| * PARTICULAR PURPOSE. |
| * |
| * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES |
| * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR |
| * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, |
| * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY |
| * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL |
| * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS |
| * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY |
| * LIMITED REMEDY. |
| * |
| * 4.3. Licensee shall not export, either directly or indirectly, any of this |
| * software or system incorporating such software without first obtaining any |
| * required license or other approval from the U. S. Department of Commerce or |
| * any other agency or department of the United States Government. In the |
| * event Licensee exports any such software from the United States or |
| * re-exports any such software from a foreign destination, Licensee shall |
| * ensure that the distribution and export/re-export of the software is in |
| * compliance with all laws, regulations, orders, or other restrictions of the |
| * U.S. Export Administration Regulations. Licensee agrees that neither it nor |
| * any of its subsidiaries will export/re-export any technical data, process, |
| * software, or service, directly or indirectly, to any country for which the |
| * United States government or any agency thereof requires an export license, |
| * other governmental approval, or letter of assurance, without first obtaining |
| * such license, approval or letter. |
| * |
| *****************************************************************************/ |
| |
| #define __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 0x%X", RegionSpace)); |
| return_ACPI_STATUS (AE_AML_INVALID_SPACE_ID); |
| } |
| |
| ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "Region Type - %s (0x%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); |
| } |
| |
| |