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Diffstat (limited to 'sys/contrib/dev/acpica/excreate.c')
| -rw-r--r-- | sys/contrib/dev/acpica/excreate.c | 737 |
1 files changed, 737 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/excreate.c b/sys/contrib/dev/acpica/excreate.c new file mode 100644 index 0000000..d237dab --- /dev/null +++ b/sys/contrib/dev/acpica/excreate.c @@ -0,0 +1,737 @@ +/****************************************************************************** + * + * Module Name: excreate - Named object creation + * $Revision: 1.114 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 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 __EXCREATE_C__ + +#include <contrib/dev/acpica/acpi.h> +#include <contrib/dev/acpica/acinterp.h> +#include <contrib/dev/acpica/amlcode.h> +#include <contrib/dev/acpica/acnamesp.h> +#include <contrib/dev/acpica/acevents.h> +#include <contrib/dev/acpica/actables.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) + { + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + case ACPI_TYPE_PACKAGE: + case ACPI_TYPE_BUFFER_FIELD: + + /* + * The new alias has the type ALIAS and points to the original + * NS node, not the object itself. This is because for these + * types, the object can change dynamically via a Store. + */ + AliasNode->Type = ACPI_TYPE_LOCAL_ALIAS; + AliasNode->Object = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, TargetNode); + break; + + case ACPI_TYPE_METHOD: + + /* + * The new alias has the type ALIAS and points to the original + * NS node, not the object itself. This is because for these + * types, the object can change dynamically via a Store. + */ + 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: AcpiExCreateTableRegion + * + * PARAMETERS: WalkState - Current state + * + * RETURN: Status + * + * DESCRIPTION: Create a new DataTableRegion object + * + ******************************************************************************/ + +ACPI_STATUS +AcpiExCreateTableRegion ( + ACPI_WALK_STATE *WalkState) +{ + ACPI_STATUS Status; + ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; + ACPI_OPERAND_OBJECT *ObjDesc; + ACPI_NAMESPACE_NODE *Node; + ACPI_OPERAND_OBJECT *RegionObj2; + ACPI_NATIVE_UINT TableIndex; + ACPI_TABLE_HEADER *Table; + + + ACPI_FUNCTION_TRACE (ExCreateTableRegion); + + + /* Get the Node from the object stack */ + + 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); + } + + /* Find the ACPI table */ + + Status = AcpiTbFindTable (Operand[1]->String.Pointer, + Operand[2]->String.Pointer, Operand[3]->String.Pointer, + &TableIndex); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Create the region descriptor */ + + ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_REGION); + if (!ObjDesc) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + + RegionObj2 = ObjDesc->Common.NextObject; + RegionObj2->Extra.RegionContext = NULL; + + Status = AcpiGetTableByIndex (TableIndex, &Table); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Init the region from the operands */ + + ObjDesc->Region.SpaceId = REGION_DATA_TABLE; + ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS) ACPI_TO_INTEGER (Table); + ObjDesc->Region.Length = Table->Length; + ObjDesc->Region.Node = Node; + ObjDesc->Region.Flags = AOPOBJ_DATA_VALID; + + /* Install the new region object in the parent Node */ + + Status = AcpiNsAttachObject (Node, ObjDesc, ACPI_TYPE_REGION); + if (ACPI_FAILURE (Status)) + { + goto Cleanup; + } + + Status = AcpiEvInitializeRegion (ObjDesc, FALSE); + if (ACPI_FAILURE (Status)) + { + if (Status == AE_NOT_EXIST) + { + Status = AE_OK; + } + else + { + goto Cleanup; + } + } + + ObjDesc->Region.Flags |= AOPOBJ_SETUP_COMPLETE; + + +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_SYNCH_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); +} + + |
