/****************************************************************************** * * Module Name: psxface - Parser external interfaces * $Revision: 69 $ * *****************************************************************************/ /****************************************************************************** * * 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 __PSXFACE_C__ #include "acpi.h" #include "acparser.h" #include "acdispat.h" #include "acinterp.h" #include "acnamesp.h" #define _COMPONENT ACPI_PARSER ACPI_MODULE_NAME ("psxface") /******************************************************************************* * * FUNCTION: AcpiPsxExecute * * PARAMETERS: MethodNode - A method object containing both the AML * address and length. * **Params - List of parameters to pass to method, * terminated by NULL. Params itself may be * NULL if no parameters are being passed. * **ReturnObjDesc - Return object from execution of the * method. * * RETURN: Status * * DESCRIPTION: Execute a control method * ******************************************************************************/ ACPI_STATUS AcpiPsxExecute ( ACPI_NAMESPACE_NODE *MethodNode, ACPI_OPERAND_OBJECT **Params, ACPI_OPERAND_OBJECT **ReturnObjDesc) { ACPI_STATUS Status; ACPI_OPERAND_OBJECT *ObjDesc; UINT32 i; ACPI_PARSE_OBJECT *Op; ACPI_WALK_STATE *WalkState; ACPI_FUNCTION_TRACE ("PsxExecute"); /* Validate the Node and get the attached object */ 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, NULL); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } if (Params) { /* * The caller "owns" the parameters, so give each one an extra * reference */ for (i = 0; Params[i]; i++) { AcpiUtAddReference (Params[i]); } } /* * 1) Perform the first pass parse of the method to enter any * named objects that it creates into the namespace */ ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "**** Begin Method Parse **** Entry=%p obj=%p\n", MethodNode, ObjDesc)); /* Create and init a Root Node */ Op = AcpiPsCreateScopeOp (); if (!Op) { Status = AE_NO_MEMORY; goto Cleanup1; } /* * Get a new OwnerId for objects created by this method. Namespace * objects (such as Operation Regions) can be created during the * first pass parse. */ ObjDesc->Method.OwningId = AcpiUtAllocateOwnerId (ACPI_OWNER_TYPE_METHOD); /* Create and initialize a new walk state */ WalkState = AcpiDsCreateWalkState (ObjDesc->Method.OwningId, NULL, NULL, NULL); if (!WalkState) { Status = AE_NO_MEMORY; goto Cleanup2; } Status = AcpiDsInitAmlWalk (WalkState, Op, MethodNode, ObjDesc->Method.AmlStart, ObjDesc->Method.AmlLength, NULL, NULL, 1); if (ACPI_FAILURE (Status)) { goto Cleanup3; } /* Parse the AML */ Status = AcpiPsParseAml (WalkState); AcpiPsDeleteParseTree (Op); if (ACPI_FAILURE (Status)) { goto Cleanup1; /* Walk state is already deleted */ } /* * 2) Execute the method. Performs second pass parse simultaneously */ ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "**** Begin Method Execution **** Entry=%p obj=%p\n", MethodNode, ObjDesc)); /* Create and init a Root Node */ Op = AcpiPsCreateScopeOp (); if (!Op) { Status = AE_NO_MEMORY; goto Cleanup1; } /* Init new op with the method name and pointer back to the NS node */ AcpiPsSetName (Op, MethodNode->Name.Integer); Op->Common.Node = MethodNode; /* Create and initialize a new walk state */ WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL); if (!WalkState) { Status = AE_NO_MEMORY; goto Cleanup2; } Status = AcpiDsInitAmlWalk (WalkState, Op, MethodNode, ObjDesc->Method.AmlStart, ObjDesc->Method.AmlLength, Params, ReturnObjDesc, 3); if (ACPI_FAILURE (Status)) { goto Cleanup3; } /* * The walk of the parse tree is where we actually execute the method */ Status = AcpiPsParseAml (WalkState); goto Cleanup2; /* Walk state already deleted */ Cleanup3: AcpiDsDeleteWalkState (WalkState); Cleanup2: AcpiPsDeleteParseTree (Op); Cleanup1: if (Params) { /* Take away the extra reference that we gave the parameters above */ for (i = 0; Params[i]; i++) { /* Ignore errors, just do them all */ (void) AcpiUtUpdateObjectReference (Params[i], REF_DECREMENT); } } if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* * If the method has returned an object, signal this to the caller with * a control exception code */ if (*ReturnObjDesc) { ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "Method returned ObjDesc=%p\n", *ReturnObjDesc)); ACPI_DUMP_STACK_ENTRY (*ReturnObjDesc); Status = AE_CTRL_RETURN_VALUE; } return_ACPI_STATUS (Status); }