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Diffstat (limited to 'sys/contrib/dev/acpica/dsmethod.c')
| -rw-r--r-- | sys/contrib/dev/acpica/dsmethod.c | 651 |
1 files changed, 0 insertions, 651 deletions
diff --git a/sys/contrib/dev/acpica/dsmethod.c b/sys/contrib/dev/acpica/dsmethod.c deleted file mode 100644 index d0431217b491..000000000000 --- a/sys/contrib/dev/acpica/dsmethod.c +++ /dev/null @@ -1,651 +0,0 @@ -/****************************************************************************** - * - * Module Name: dsmethod - Parser/Interpreter interface - control method parsing - * $Revision: 90 $ - * - *****************************************************************************/ - -/****************************************************************************** - * - * 1. Copyright Notice - * - * Some or all of this work - Copyright (c) 1999 - 2003, 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" - - -#define _COMPONENT ACPI_DISPATCHER - ACPI_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; - ACPI_WALK_STATE *WalkState; - - - ACPI_FUNCTION_TRACE_PTR ("DsParseMethod", ObjHandle); - - - /* Parameter Validation */ - - if (!ObjHandle) - { - return_ACPI_STATUS (AE_NULL_ENTRY); - } - - ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "**** Parsing [%4.4s] **** NamedObj=%p\n", - ((ACPI_NAMESPACE_NODE *) ObjHandle)->Name.Ascii, ObjHandle)); - - /* Extract the method object from the method Node */ - - Node = (ACPI_NAMESPACE_NODE *) ObjHandle; - ObjDesc = AcpiNsGetAttachedObject (Node); - 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 (ObjDesc->Method.Concurrency, - 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.Integer); - Op->Common.Node = Node; - - /* - * Get a new OwnerId for objects created by this method. Namespace - * objects (such as Operation Regions) can be created during the - * first pass parse. - */ - OwnerId = AcpiUtAllocateOwnerId (ACPI_OWNER_TYPE_METHOD); - ObjDesc->Method.OwningId = OwnerId; - - /* Create and initialize a new walk state */ - - WalkState = AcpiDsCreateWalkState (OwnerId, NULL, NULL, NULL); - if (!WalkState) - { - return_ACPI_STATUS (AE_NO_MEMORY); - } - - Status = AcpiDsInitAmlWalk (WalkState, Op, Node, ObjDesc->Method.AmlStart, - ObjDesc->Method.AmlLength, NULL, NULL, 1); - if (ACPI_FAILURE (Status)) - { - AcpiDsDeleteWalkState (WalkState); - return_ACPI_STATUS (Status); - } - - /* - * 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 (WalkState); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, - "**** [%4.4s] Parsed **** NamedObj=%p Op=%p\n", - ((ACPI_NAMESPACE_NODE *) ObjHandle)->Name.Ascii, ObjHandle, Op)); - - AcpiPsDeleteParseTree (Op); - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiDsBeginMethodExecution - * - * PARAMETERS: MethodNode - Node of the method - * ObjDesc - The method object - * CallingMethodNode - Caller of this method (if non-null) - * - * 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_NAMESPACE_NODE *CallingMethodNode) -{ - ACPI_STATUS Status = AE_OK; - - - ACPI_FUNCTION_TRACE_PTR ("DsBeginMethodExecution", MethodNode); - - - if (!MethodNode) - { - return_ACPI_STATUS (AE_NULL_ENTRY); - } - - /* - * If there is a concurrency limit on this method, we need to - * obtain a unit from the method semaphore. - */ - if (ObjDesc->Method.Semaphore) - { - /* - * Allow recursive method calls, up to the reentrancy/concurrency - * limit imposed by the SERIALIZED rule and the SyncLevel method - * parameter. - * - * The point of this code is to avoid permanently blocking a - * thread that is making recursive method calls. - */ - if (MethodNode == CallingMethodNode) - { - if (ObjDesc->Method.ThreadCount >= ObjDesc->Method.Concurrency) - { - return_ACPI_STATUS (AE_AML_METHOD_LIMIT); - } - } - - /* - * Get a unit from the method semaphore. This releases the - * interpreter if we block - */ - Status = AcpiExSystemWaitSemaphore (ObjDesc->Method.Semaphore, - ACPI_WAIT_FOREVER); - } - - /* - * Increment the method parse tree thread count since it has been - * reentered one more time (even if it is the same thread) - */ - 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_THREAD_STATE *Thread, - ACPI_WALK_STATE *ThisWalkState, - ACPI_PARSE_OBJECT *Op) -{ - ACPI_STATUS Status; - ACPI_NAMESPACE_NODE *MethodNode; - ACPI_OPERAND_OBJECT *ObjDesc; - ACPI_WALK_STATE *NextWalkState; - UINT32 i; - - - ACPI_FUNCTION_TRACE_PTR ("DsCallControlMethod", ThisWalkState); - - ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "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); - } - - ObjDesc->Method.OwningId = AcpiUtAllocateOwnerId (ACPI_OWNER_TYPE_METHOD); - - /* Init for new method, wait on concurrency semaphore */ - - Status = AcpiDsBeginMethodExecution (MethodNode, ObjDesc, - ThisWalkState->MethodNode); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - /* 1) Parse: Create a new walk state for the preempting walk */ - - NextWalkState = AcpiDsCreateWalkState (ObjDesc->Method.OwningId, - Op, ObjDesc, NULL); - if (!NextWalkState) - { - return_ACPI_STATUS (AE_NO_MEMORY); - } - - /* Create and init a Root Node */ - - Op = AcpiPsCreateScopeOp (); - if (!Op) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - Status = AcpiDsInitAmlWalk (NextWalkState, Op, MethodNode, - ObjDesc->Method.AmlStart, ObjDesc->Method.AmlLength, - NULL, NULL, 1); - if (ACPI_FAILURE (Status)) - { - AcpiDsDeleteWalkState (NextWalkState); - goto Cleanup; - } - - /* Begin AML parse */ - - Status = AcpiPsParseAml (NextWalkState); - AcpiPsDeleteParseTree (Op); - - /* 2) Execute: Create a new state for the preempting walk */ - - NextWalkState = AcpiDsCreateWalkState (ObjDesc->Method.OwningId, - NULL, ObjDesc, Thread); - if (!NextWalkState) - { - Status = AE_NO_MEMORY; - goto Cleanup; - } - - /* - * 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. - * Null terminate the list of arguments - */ - ThisWalkState->Operands [ThisWalkState->NumOperands] = NULL; - - Status = AcpiDsInitAmlWalk (NextWalkState, NULL, MethodNode, - ObjDesc->Method.AmlStart, ObjDesc->Method.AmlLength, - &ThisWalkState->Operands[0], NULL, 3); - if (ACPI_FAILURE (Status)) - { - goto Cleanup; - } - - /* - * Delete the operands on the previous walkstate operand stack - * (they were copied to new objects) - */ - for (i = 0; i < ObjDesc->Method.ParamCount; i++) - { - AcpiUtRemoveReference (ThisWalkState->Operands [i]); - ThisWalkState->Operands [i] = NULL; - } - - /* Clear the operand stack */ - - ThisWalkState->NumOperands = 0; - - ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, - "Starting nested execution, newstate=%p\n", NextWalkState)); - - return_ACPI_STATUS (AE_OK); - - - /* On error, we must delete the new walk state */ - -Cleanup: - (void) 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; - - - ACPI_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 = AcpiDsResultPush (ReturnDesc, WalkState); - if (ACPI_FAILURE (Status)) - { - AcpiUtRemoveReference (ReturnDesc); - return_ACPI_STATUS (Status); - } - } - else - { - /* - * Delete the return value if it will not be used by the - * calling method - */ - AcpiUtRemoveReference (ReturnDesc); - } - } - - ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, - "Method=%p Return=%p ReturnUsed?=%X ResStack=%p State=%p\n", - WalkState->MethodCallOp, ReturnDesc, WalkState->ReturnUsed, - WalkState->Results, 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_OPERAND_OBJECT *ObjDesc; - ACPI_NAMESPACE_NODE *MethodNode; - ACPI_STATUS Status; - - - ACPI_FUNCTION_TRACE_PTR ("DsTerminateControlMethod", WalkState); - - - if (!WalkState) - { - return (AE_BAD_PARAMETER); - } - - /* The current method object was saved 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 - */ - Status = AcpiUtAcquireMutex (ACPI_MTX_PARSER); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - /* Signal completion of the execution of this method if necessary */ - - if (WalkState->MethodDesc->Method.Semaphore) - { - Status = AcpiOsSignalSemaphore ( - WalkState->MethodDesc->Method.Semaphore, 1); - if (ACPI_FAILURE (Status)) - { - ACPI_REPORT_ERROR (("Could not signal method semaphore\n")); - Status = AE_OK; - - /* Ignore error and continue cleanup */ - } - } - - /* 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 - */ - Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - - if (MethodNode->Child) - { - AcpiNsDeleteNamespaceSubtree (MethodNode); - } - - /* - * Delete any namespace entries created anywhere else within - * the namespace - */ - AcpiNsDeleteNamespaceByOwner (WalkState->MethodDesc->Method.OwningId); - Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE (Status)) - { - return_ACPI_STATUS (Status); - } - } - - Status = AcpiUtReleaseMutex (ACPI_MTX_PARSER); - return_ACPI_STATUS (Status); -} - - |