psxface.c revision 70243
167754Smsmith/****************************************************************************** 267754Smsmith * 367754Smsmith * Module Name: psxface - Parser external interfaces 470243Smsmith * $Revision: 38 $ 567754Smsmith * 667754Smsmith *****************************************************************************/ 767754Smsmith 867754Smsmith/****************************************************************************** 967754Smsmith * 1067754Smsmith * 1. Copyright Notice 1167754Smsmith * 1270243Smsmith * Some or all of this work - Copyright (c) 1999, 2000, Intel Corp. 1370243Smsmith * All rights reserved. 1467754Smsmith * 1567754Smsmith * 2. License 1667754Smsmith * 1767754Smsmith * 2.1. This is your license from Intel Corp. under its intellectual property 1867754Smsmith * rights. You may have additional license terms from the party that provided 1967754Smsmith * you this software, covering your right to use that party's intellectual 2067754Smsmith * property rights. 2167754Smsmith * 2267754Smsmith * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 2367754Smsmith * copy of the source code appearing in this file ("Covered Code") an 2467754Smsmith * irrevocable, perpetual, worldwide license under Intel's copyrights in the 2567754Smsmith * base code distributed originally by Intel ("Original Intel Code") to copy, 2667754Smsmith * make derivatives, distribute, use and display any portion of the Covered 2767754Smsmith * Code in any form, with the right to sublicense such rights; and 2867754Smsmith * 2967754Smsmith * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 3067754Smsmith * license (with the right to sublicense), under only those claims of Intel 3167754Smsmith * patents that are infringed by the Original Intel Code, to make, use, sell, 3267754Smsmith * offer to sell, and import the Covered Code and derivative works thereof 3367754Smsmith * solely to the minimum extent necessary to exercise the above copyright 3467754Smsmith * license, and in no event shall the patent license extend to any additions 3567754Smsmith * to or modifications of the Original Intel Code. No other license or right 3667754Smsmith * is granted directly or by implication, estoppel or otherwise; 3767754Smsmith * 3867754Smsmith * The above copyright and patent license is granted only if the following 3967754Smsmith * conditions are met: 4067754Smsmith * 4167754Smsmith * 3. Conditions 4267754Smsmith * 4367754Smsmith * 3.1. Redistribution of Source with Rights to Further Distribute Source. 4467754Smsmith * Redistribution of source code of any substantial portion of the Covered 4567754Smsmith * Code or modification with rights to further distribute source must include 4667754Smsmith * the above Copyright Notice, the above License, this list of Conditions, 4767754Smsmith * and the following Disclaimer and Export Compliance provision. In addition, 4867754Smsmith * Licensee must cause all Covered Code to which Licensee contributes to 4967754Smsmith * contain a file documenting the changes Licensee made to create that Covered 5067754Smsmith * Code and the date of any change. Licensee must include in that file the 5167754Smsmith * documentation of any changes made by any predecessor Licensee. Licensee 5267754Smsmith * must include a prominent statement that the modification is derived, 5367754Smsmith * directly or indirectly, from Original Intel Code. 5467754Smsmith * 5567754Smsmith * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 5667754Smsmith * Redistribution of source code of any substantial portion of the Covered 5767754Smsmith * Code or modification without rights to further distribute source must 5867754Smsmith * include the following Disclaimer and Export Compliance provision in the 5967754Smsmith * documentation and/or other materials provided with distribution. In 6067754Smsmith * addition, Licensee may not authorize further sublicense of source of any 6167754Smsmith * portion of the Covered Code, and must include terms to the effect that the 6267754Smsmith * license from Licensee to its licensee is limited to the intellectual 6367754Smsmith * property embodied in the software Licensee provides to its licensee, and 6467754Smsmith * not to intellectual property embodied in modifications its licensee may 6567754Smsmith * make. 6667754Smsmith * 6767754Smsmith * 3.3. Redistribution of Executable. Redistribution in executable form of any 6867754Smsmith * substantial portion of the Covered Code or modification must reproduce the 6967754Smsmith * above Copyright Notice, and the following Disclaimer and Export Compliance 7067754Smsmith * provision in the documentation and/or other materials provided with the 7167754Smsmith * distribution. 7267754Smsmith * 7367754Smsmith * 3.4. Intel retains all right, title, and interest in and to the Original 7467754Smsmith * Intel Code. 7567754Smsmith * 7667754Smsmith * 3.5. Neither the name Intel nor any other trademark owned or controlled by 7767754Smsmith * Intel shall be used in advertising or otherwise to promote the sale, use or 7867754Smsmith * other dealings in products derived from or relating to the Covered Code 7967754Smsmith * without prior written authorization from Intel. 8067754Smsmith * 8167754Smsmith * 4. Disclaimer and Export Compliance 8267754Smsmith * 8367754Smsmith * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 8467754Smsmith * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 8567754Smsmith * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 8667754Smsmith * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 8767754Smsmith * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 8867754Smsmith * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 8967754Smsmith * PARTICULAR PURPOSE. 9067754Smsmith * 9167754Smsmith * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 9267754Smsmith * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 9367754Smsmith * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 9467754Smsmith * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 9567754Smsmith * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 9667754Smsmith * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 9767754Smsmith * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 9867754Smsmith * LIMITED REMEDY. 9967754Smsmith * 10067754Smsmith * 4.3. Licensee shall not export, either directly or indirectly, any of this 10167754Smsmith * software or system incorporating such software without first obtaining any 10267754Smsmith * required license or other approval from the U. S. Department of Commerce or 10367754Smsmith * any other agency or department of the United States Government. In the 10467754Smsmith * event Licensee exports any such software from the United States or 10567754Smsmith * re-exports any such software from a foreign destination, Licensee shall 10667754Smsmith * ensure that the distribution and export/re-export of the software is in 10767754Smsmith * compliance with all laws, regulations, orders, or other restrictions of the 10867754Smsmith * U.S. Export Administration Regulations. Licensee agrees that neither it nor 10967754Smsmith * any of its subsidiaries will export/re-export any technical data, process, 11067754Smsmith * software, or service, directly or indirectly, to any country for which the 11167754Smsmith * United States government or any agency thereof requires an export license, 11267754Smsmith * other governmental approval, or letter of assurance, without first obtaining 11367754Smsmith * such license, approval or letter. 11467754Smsmith * 11567754Smsmith *****************************************************************************/ 11667754Smsmith 11767754Smsmith#define __PSXFACE_C__ 11867754Smsmith 11967754Smsmith#include "acpi.h" 12067754Smsmith#include "acparser.h" 12167754Smsmith#include "acdispat.h" 12267754Smsmith#include "acinterp.h" 12367754Smsmith#include "amlcode.h" 12467754Smsmith#include "acnamesp.h" 12567754Smsmith 12667754Smsmith 12767754Smsmith#define _COMPONENT PARSER 12867754Smsmith MODULE_NAME ("psxface") 12967754Smsmith 13067754Smsmith 13167754Smsmith/***************************************************************************** 13267754Smsmith * 13367754Smsmith * FUNCTION: AcpiPsxExecute 13467754Smsmith * 13567754Smsmith * PARAMETERS: MethodNode - A method object containing both the AML 13667754Smsmith * address and length. 13767754Smsmith * **Params - List of parameters to pass to method, 13867754Smsmith * terminated by NULL. Params itself may be 13967754Smsmith * NULL if no parameters are being passed. 14067754Smsmith * **ReturnObjDesc - Return object from execution of the 14167754Smsmith * method. 14267754Smsmith * 14367754Smsmith * RETURN: Status 14467754Smsmith * 14567754Smsmith * DESCRIPTION: Execute a control method 14667754Smsmith * 14767754Smsmith ****************************************************************************/ 14867754Smsmith 14967754SmsmithACPI_STATUS 15067754SmsmithAcpiPsxExecute ( 15167754Smsmith ACPI_NAMESPACE_NODE *MethodNode, 15267754Smsmith ACPI_OPERAND_OBJECT **Params, 15367754Smsmith ACPI_OPERAND_OBJECT **ReturnObjDesc) 15467754Smsmith{ 15567754Smsmith ACPI_STATUS Status; 15667754Smsmith ACPI_OPERAND_OBJECT *ObjDesc; 15767754Smsmith UINT32 i; 15867754Smsmith ACPI_PARSE_OBJECT *Op; 15967754Smsmith 16067754Smsmith 16167754Smsmith FUNCTION_TRACE ("PsxExecute"); 16267754Smsmith 16367754Smsmith 16467754Smsmith /* Validate the Node and get the attached object */ 16567754Smsmith 16667754Smsmith if (!MethodNode) 16767754Smsmith { 16867754Smsmith return_ACPI_STATUS (AE_NULL_ENTRY); 16967754Smsmith } 17067754Smsmith 17167754Smsmith ObjDesc = AcpiNsGetAttachedObject (MethodNode); 17267754Smsmith if (!ObjDesc) 17367754Smsmith { 17467754Smsmith return_ACPI_STATUS (AE_NULL_OBJECT); 17567754Smsmith } 17667754Smsmith 17767754Smsmith /* Init for new method, wait on concurrency semaphore */ 17867754Smsmith 17967754Smsmith Status = AcpiDsBeginMethodExecution (MethodNode, ObjDesc); 18067754Smsmith if (ACPI_FAILURE (Status)) 18167754Smsmith { 18267754Smsmith return_ACPI_STATUS (Status); 18367754Smsmith } 18467754Smsmith 18567754Smsmith if (Params) 18667754Smsmith { 18767754Smsmith /* 18867754Smsmith * The caller "owns" the parameters, so give each one an extra 18967754Smsmith * reference 19067754Smsmith */ 19167754Smsmith 19267754Smsmith for (i = 0; Params[i]; i++) 19367754Smsmith { 19467754Smsmith AcpiCmAddReference (Params[i]); 19567754Smsmith } 19667754Smsmith } 19767754Smsmith 19867754Smsmith /* 19967754Smsmith * Perform the first pass parse of the method to enter any 20067754Smsmith * named objects that it creates into the namespace 20167754Smsmith */ 20267754Smsmith 20367754Smsmith DEBUG_PRINT (ACPI_INFO, 20467754Smsmith ("PsxExecute: **** Begin Method Execution **** Entry=%p obj=%p\n", 20567754Smsmith MethodNode, ObjDesc)); 20667754Smsmith 20767754Smsmith /* Create and init a Root Node */ 20867754Smsmith 20967754Smsmith Op = AcpiPsAllocOp (AML_SCOPE_OP); 21067754Smsmith if (!Op) 21167754Smsmith { 21267754Smsmith return_ACPI_STATUS (AE_NO_MEMORY); 21367754Smsmith } 21467754Smsmith 21567754Smsmith Status = AcpiPsParseAml (Op, ObjDesc->Method.Pcode, 21667754Smsmith ObjDesc->Method.PcodeLength, 21767754Smsmith ACPI_PARSE_LOAD_PASS1 | ACPI_PARSE_DELETE_TREE, 21867754Smsmith MethodNode, Params, ReturnObjDesc, 21967754Smsmith AcpiDsLoad1BeginOp, AcpiDsLoad1EndOp); 22067754Smsmith AcpiPsDeleteParseTree (Op); 22167754Smsmith 22267754Smsmith /* Create and init a Root Node */ 22367754Smsmith 22467754Smsmith Op = AcpiPsAllocOp (AML_SCOPE_OP); 22567754Smsmith if (!Op) 22667754Smsmith { 22767754Smsmith return_ACPI_STATUS (AE_NO_MEMORY); 22867754Smsmith } 22967754Smsmith 23067754Smsmith /* 23167754Smsmith * The walk of the parse tree is where we actually execute the method 23267754Smsmith */ 23367754Smsmith Status = AcpiPsParseAml (Op, ObjDesc->Method.Pcode, 23467754Smsmith ObjDesc->Method.PcodeLength, 23567754Smsmith ACPI_PARSE_EXECUTE | ACPI_PARSE_DELETE_TREE, 23667754Smsmith MethodNode, Params, ReturnObjDesc, 23767754Smsmith AcpiDsExecBeginOp, AcpiDsExecEndOp); 23867754Smsmith AcpiPsDeleteParseTree (Op); 23967754Smsmith 24067754Smsmith if (Params) 24167754Smsmith { 24267754Smsmith /* Take away the extra reference that we gave the parameters above */ 24367754Smsmith 24467754Smsmith for (i = 0; Params[i]; i++) 24567754Smsmith { 24667754Smsmith AcpiCmUpdateObjectReference (Params[i], REF_DECREMENT); 24767754Smsmith } 24867754Smsmith } 24967754Smsmith 25067754Smsmith 25167754Smsmith /* 25267754Smsmith * Normal exit is with Status == AE_RETURN_VALUE when a ReturnOp has been 25367754Smsmith * executed, or with Status == AE_PENDING at end of AML block (end of 25467754Smsmith * Method code) 25567754Smsmith */ 25667754Smsmith 25767754Smsmith if (*ReturnObjDesc) 25867754Smsmith { 25967754Smsmith DEBUG_PRINT (ACPI_INFO, ("Method returned ObjDesc=%X\n", 26067754Smsmith *ReturnObjDesc)); 26167754Smsmith DUMP_STACK_ENTRY (*ReturnObjDesc); 26267754Smsmith 26367754Smsmith Status = AE_CTRL_RETURN_VALUE; 26467754Smsmith } 26567754Smsmith 26667754Smsmith 26767754Smsmith return_ACPI_STATUS (Status); 26867754Smsmith} 26967754Smsmith 27067754Smsmith 271