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Diffstat (limited to 'sys/contrib/dev/acpica/dsmethod.c')
| -rw-r--r-- | sys/contrib/dev/acpica/dsmethod.c | 644 |
1 files changed, 0 insertions, 644 deletions
diff --git a/sys/contrib/dev/acpica/dsmethod.c b/sys/contrib/dev/acpica/dsmethod.c deleted file mode 100644 index 98a4ed53adab..000000000000 --- a/sys/contrib/dev/acpica/dsmethod.c +++ /dev/null @@ -1,644 +0,0 @@ -/****************************************************************************** - * - * Module Name: dsmethod - Parser/Interpreter interface - control method parsing - * $Revision: 52 $ - * - *****************************************************************************/ - -/****************************************************************************** - * - * 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 __DSMETHOD_C__ - -#include "acpi.h" -#include "acparser.h" -#include "amlcode.h" -#include "acdispat.h" -#include "acinterp.h" -#include "acnamesp.h" -#include "actables.h" -#include "acdebug.h" - - -#define _COMPONENT DISPATCHER - MODULE_NAME ("dsmethod") - - -/******************************************************************************* - * - * FUNCTION: AcpiDsParseMethod - * - * PARAMETERS: ObjHandle - Node of the method - * Level - Current nesting level - * Context - Points to a method counter - * ReturnValue - Not used - * - * RETURN: Status - * - * DESCRIPTION: Call the parser and parse the AML that is - * associated with the method. - * - * MUTEX: Assumes parser is locked - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsParseMethod ( - ACPI_HANDLE ObjHandle) -{ - ACPI_STATUS Status; - ACPI_OPERAND_OBJECT *ObjDesc; - ACPI_PARSE_OBJECT *Op; - ACPI_NAMESPACE_NODE *Node; - ACPI_OWNER_ID OwnerId; - - - FUNCTION_TRACE_PTR ("DsParseMethod", ObjHandle); - - - /* Parameter Validation */ - - if (!ObjHandle) - { - return_ACPI_STATUS (AE_NULL_ENTRY); - } - - DEBUG_PRINT (ACPI_INFO, - ("DsParseMethod: **** Parsing [%4.4s] **** NamedObj=%p\n", - &((ACPI_NAMESPACE_NODE *)ObjHandle)->Name, ObjHandle)); - - - /* Extract the method object from the method Node */ - - Node = (ACPI_NAMESPACE_NODE *) ObjHandle; - ObjDesc = Node->Object; - if (!ObjDesc) - { - return_ACPI_STATUS (AE_NULL_OBJECT); - } - - /* Create a mutex for the method if there is a concurrency limit */ - - if ((ObjDesc->Method.Concurrency != INFINITE_CONCURRENCY) && - (!ObjDesc->Method.Semaphore)) - { - Status = AcpiOsCreateSemaphore (1,ObjDesc->Method.Concurrency, - &ObjDesc->Method.Semaphore); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - } - - /* - * Allocate a new parser op to be the root of the parsed - * method tree - */ - - Op = AcpiPsAllocOp (AML_METHOD_OP); - if (!Op) - { - return_ACPI_STATUS (AE_NO_MEMORY); - } - - /* Init new op with the method name and pointer back to the Node */ - - AcpiPsSetName (Op, Node->Name); - Op->Node = Node; - - - /* - * Parse the method, first pass - * - * The first pass load is - * where newly declared named objects are - * added into the namespace. Actual evaluation of - * the named objects (what would be called a "second - * pass") happens during the actual execution of the - * method so that operands to the named objects can - * take on dynamic run-time values. - */ - - Status = AcpiPsParseAml (Op, ObjDesc->Method.Pcode, - ObjDesc->Method.PcodeLength, - ACPI_PARSE_LOAD_PASS1 | ACPI_PARSE_DELETE_TREE, - Node, NULL, NULL, - AcpiDsLoad1BeginOp, AcpiDsLoad1EndOp); - - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - /* Get a new OwnerId for objects created by this method */ - - OwnerId = AcpiCmAllocateOwnerId (OWNER_TYPE_METHOD); - ObjDesc->Method.OwningId = OwnerId; - - DEBUG_PRINT (ACPI_INFO, - ("DsParseMethod: **** [%4.4s] Parsed **** NamedObj=%p Op=%p\n", - &((ACPI_NAMESPACE_NODE *)ObjHandle)->Name, ObjHandle, Op)); - - /* Install the parsed tree in the method object */ - /* TBD: [Restructure] Obsolete field? */ - - AcpiPsDeleteParseTree (Op); - - - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsBeginMethodExecution - * - * PARAMETERS: MethodNode - Node of the method - * ObjDesc - The method object - * - * RETURN: Status - * - * DESCRIPTION: Prepare a method for execution. Parses the method if necessary, - * increments the thread count, and waits at the method semaphore - * for clearance to execute. - * - * MUTEX: Locks/unlocks parser. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsBeginMethodExecution ( - ACPI_NAMESPACE_NODE *MethodNode, - ACPI_OPERAND_OBJECT *ObjDesc) -{ - ACPI_STATUS Status = AE_OK; - - - FUNCTION_TRACE_PTR ("DsBeginMethodExecution", MethodNode); - - - if (!MethodNode) - { - return_ACPI_STATUS (AE_NULL_ENTRY); - } - - ObjDesc = AcpiNsGetAttachedObject (MethodNode); - if (!ObjDesc) - { - return_ACPI_STATUS (AE_NULL_OBJECT); - } - - - /* - * If there is a concurrency limit on this method, we need to - * obtain a unit from the method semaphore. This releases the - * interpreter if we block - */ - - if (ObjDesc->Method.Semaphore) - { - Status = AcpiAmlSystemWaitSemaphore (ObjDesc->Method.Semaphore, - WAIT_FOREVER); - } - - - /* - * Increment the method parse tree thread count since there - * is one additional thread executing in it. If configured - * for deletion-on-exit, the parse tree will be deleted when - * the last thread completes execution of the method - */ - - ObjDesc->Method.ThreadCount++; - - - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsCallControlMethod - * - * PARAMETERS: WalkState - Current state of the walk - * Op - Current Op to be walked - * - * RETURN: Status - * - * DESCRIPTION: Transfer execution to a called control method - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsCallControlMethod ( - ACPI_WALK_LIST *WalkList, - ACPI_WALK_STATE *ThisWalkState, - ACPI_PARSE_OBJECT *Op) -{ - ACPI_STATUS Status; - ACPI_NAMESPACE_NODE *MethodNode; - ACPI_OPERAND_OBJECT *ObjDesc; - ACPI_WALK_STATE *NextWalkState; - ACPI_PARSE_STATE *ParserState; - UINT32 i; - - - FUNCTION_TRACE_PTR ("DsCallControlMethod", ThisWalkState); - - DEBUG_PRINT (TRACE_DISPATCH, - ("DsCall, execute method %p, currentstate=%p\n", - ThisWalkState->PrevOp, ThisWalkState)); - - /* - * Get the namespace entry for the control method we are about to call - */ - - MethodNode = ThisWalkState->MethodCallNode; - if (!MethodNode) - { - return_ACPI_STATUS (AE_NULL_ENTRY); - } - - ObjDesc = AcpiNsGetAttachedObject (MethodNode); - if (!ObjDesc) - { - return_ACPI_STATUS (AE_NULL_OBJECT); - } - - - /* Init for new method, wait on concurrency semaphore */ - - Status = AcpiDsBeginMethodExecution (MethodNode, ObjDesc); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - - /* Create and initialize a new parser state */ - - ParserState = AcpiPsCreateState (ObjDesc->Method.Pcode, - ObjDesc->Method.PcodeLength); - if (!ParserState) - { - return_ACPI_STATUS (AE_NO_MEMORY); - } - - AcpiPsInitScope (ParserState, NULL); - ParserState->StartNode = MethodNode; - - - /* Create a new state for the preempting walk */ - - NextWalkState = AcpiDsCreateWalkState (ObjDesc->Method.OwningId, - NULL, ObjDesc, WalkList); - if (!NextWalkState) - { - /* TBD: delete parser state */ - - return_ACPI_STATUS (AE_NO_MEMORY); - } - - NextWalkState->WalkType = WALK_METHOD; - NextWalkState->MethodNode = MethodNode; - NextWalkState->ParserState = ParserState; - NextWalkState->ParseFlags = ThisWalkState->ParseFlags; - NextWalkState->DescendingCallback = ThisWalkState->DescendingCallback; - NextWalkState->AscendingCallback = ThisWalkState->AscendingCallback; - - /* The NextOp of the NextWalk will be the beginning of the method */ - /* TBD: [Restructure] -- obsolete? */ - - NextWalkState->NextOp = NULL; - - /* Open a new scope */ - - Status = AcpiDsScopeStackPush (MethodNode, - ACPI_TYPE_METHOD, NextWalkState); - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - - - /* - * Initialize the arguments for the method. The resolved - * arguments were put on the previous walk state's operand - * stack. Operands on the previous walk state stack always - * start at index 0. - */ - - Status = AcpiDsMethodDataInitArgs (&ThisWalkState->Operands[0], - ThisWalkState->NumOperands, - NextWalkState); - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - - - /* Create and init a Root Node */ - - Op = AcpiPsAllocOp (AML_SCOPE_OP); - if (!Op) - { - return_ACPI_STATUS (AE_NO_MEMORY); - } - - Status = AcpiPsParseAml (Op, ObjDesc->Method.Pcode, - ObjDesc->Method.PcodeLength, - ACPI_PARSE_LOAD_PASS1 | ACPI_PARSE_DELETE_TREE, - MethodNode, NULL, NULL, - AcpiDsLoad1BeginOp, AcpiDsLoad1EndOp); - AcpiPsDeleteParseTree (Op); - - - /* - * Delete the operands on the previous walkstate operand stack - * (they were copied to new objects) - */ - - for (i = 0; i < ObjDesc->Method.ParamCount; i++) - { - AcpiCmRemoveReference (ThisWalkState->Operands [i]); - ThisWalkState->Operands [i] = NULL; - } - - /* Clear the operand stack */ - - ThisWalkState->NumOperands = 0; - - - DEBUG_PRINT (TRACE_DISPATCH, - ("DsCall, starting nested execution, newstate=%p\n", NextWalkState)); - - return_ACPI_STATUS (AE_OK); - - - /* On error, we must delete the new walk state */ - -Cleanup: - AcpiDsTerminateControlMethod (NextWalkState); - AcpiDsDeleteWalkState (NextWalkState); - return_ACPI_STATUS (Status); - -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsRestartControlMethod - * - * PARAMETERS: WalkState - State of the method when it was preempted - * Op - Pointer to new current op - * - * RETURN: Status - * - * DESCRIPTION: Restart a method that was preempted - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsRestartControlMethod ( - ACPI_WALK_STATE *WalkState, - ACPI_OPERAND_OBJECT *ReturnDesc) -{ - ACPI_STATUS Status; - - - FUNCTION_TRACE_PTR ("DsRestartControlMethod", WalkState); - - - if (ReturnDesc) - { - if (WalkState->ReturnUsed) - { - /* - * Get the return value (if any) from the previous method. - * NULL if no return value - */ - - Status = AcpiDsResultStackPush (ReturnDesc, WalkState); - if (ACPI_FAILURE (Status)) - { - AcpiCmRemoveReference (ReturnDesc); - return_ACPI_STATUS (Status); - } - } - - else - { - /* - * Delete the return value if it will not be used by the - * calling method - */ - AcpiCmRemoveReference (ReturnDesc); - } - - } - - DEBUG_PRINT (TRACE_DISPATCH, - ("DsRestart: Method=%p Return=%p State=%p\n", - WalkState->MethodCallOp, ReturnDesc, WalkState)); - - - return_ACPI_STATUS (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsTerminateControlMethod - * - * PARAMETERS: WalkState - State of the method - * - * RETURN: Status - * - * DESCRIPTION: Terminate a control method. Delete everything that the method - * created, delete all locals and arguments, and delete the parse - * tree if requested. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiDsTerminateControlMethod ( - ACPI_WALK_STATE *WalkState) -{ - ACPI_STATUS Status; - ACPI_OPERAND_OBJECT *ObjDesc; - ACPI_NAMESPACE_NODE *MethodNode; - - - FUNCTION_TRACE_PTR ("DsTerminateControlMethod", WalkState); - - - /* The method object should be stored in the walk state */ - - ObjDesc = WalkState->MethodDesc; - if (!ObjDesc) - { - return_ACPI_STATUS (AE_OK); - } - - /* Delete all arguments and locals */ - - AcpiDsMethodDataDeleteAll (WalkState); - - /* - * Lock the parser while we terminate this method. - * If this is the last thread executing the method, - * we have additional cleanup to perform - */ - - AcpiCmAcquireMutex (ACPI_MTX_PARSER); - - - /* Signal completion of the execution of this method if necessary */ - - if (WalkState->MethodDesc->Method.Semaphore) - { - Status = AcpiOsSignalSemaphore ( - WalkState->MethodDesc->Method.Semaphore, 1); - } - - /* Decrement the thread count on the method parse tree */ - - WalkState->MethodDesc->Method.ThreadCount--; - if (!WalkState->MethodDesc->Method.ThreadCount) - { - /* - * There are no more threads executing this method. Perform - * additional cleanup. - * - * The method Node is stored in the walk state - */ - MethodNode = WalkState->MethodNode; - /* - * Delete any namespace entries created immediately underneath - * the method - */ - AcpiCmAcquireMutex (ACPI_MTX_NAMESPACE); - if (MethodNode->Child) - { - AcpiNsDeleteNamespaceSubtree (MethodNode); - } - - /* - * Delete any namespace entries created anywhere else within - * the namespace - */ - AcpiNsDeleteNamespaceByOwner (WalkState->MethodDesc->Method.OwningId); - AcpiCmReleaseMutex (ACPI_MTX_NAMESPACE); - } - - AcpiCmReleaseMutex (ACPI_MTX_PARSER); - return_ACPI_STATUS (AE_OK); -} - - |