10d02842fSSascha Wildner /****************************************************************************** 20d02842fSSascha Wildner * 30d02842fSSascha Wildner * Module Name: exoparg2 - AML execution - opcodes with 2 arguments 40d02842fSSascha Wildner * 50d02842fSSascha Wildner *****************************************************************************/ 60d02842fSSascha Wildner 7b4315fc7SSascha Wildner /****************************************************************************** 8b4315fc7SSascha Wildner * 9b4315fc7SSascha Wildner * 1. Copyright Notice 10b4315fc7SSascha Wildner * 11*ff4021a0SSascha Wildner * Some or all of this work - Copyright (c) 1999 - 2019, Intel Corp. 120d02842fSSascha Wildner * All rights reserved. 130d02842fSSascha Wildner * 14b4315fc7SSascha Wildner * 2. License 15b4315fc7SSascha Wildner * 16b4315fc7SSascha Wildner * 2.1. This is your license from Intel Corp. under its intellectual property 17b4315fc7SSascha Wildner * rights. You may have additional license terms from the party that provided 18b4315fc7SSascha Wildner * you this software, covering your right to use that party's intellectual 19b4315fc7SSascha Wildner * property rights. 20b4315fc7SSascha Wildner * 21b4315fc7SSascha Wildner * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22b4315fc7SSascha Wildner * copy of the source code appearing in this file ("Covered Code") an 23b4315fc7SSascha Wildner * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24b4315fc7SSascha Wildner * base code distributed originally by Intel ("Original Intel Code") to copy, 25b4315fc7SSascha Wildner * make derivatives, distribute, use and display any portion of the Covered 26b4315fc7SSascha Wildner * Code in any form, with the right to sublicense such rights; and 27b4315fc7SSascha Wildner * 28b4315fc7SSascha Wildner * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29b4315fc7SSascha Wildner * license (with the right to sublicense), under only those claims of Intel 30b4315fc7SSascha Wildner * patents that are infringed by the Original Intel Code, to make, use, sell, 31b4315fc7SSascha Wildner * offer to sell, and import the Covered Code and derivative works thereof 32b4315fc7SSascha Wildner * solely to the minimum extent necessary to exercise the above copyright 33b4315fc7SSascha Wildner * license, and in no event shall the patent license extend to any additions 34b4315fc7SSascha Wildner * to or modifications of the Original Intel Code. No other license or right 35b4315fc7SSascha Wildner * is granted directly or by implication, estoppel or otherwise; 36b4315fc7SSascha Wildner * 37b4315fc7SSascha Wildner * The above copyright and patent license is granted only if the following 38b4315fc7SSascha Wildner * conditions are met: 39b4315fc7SSascha Wildner * 40b4315fc7SSascha Wildner * 3. Conditions 41b4315fc7SSascha Wildner * 42b4315fc7SSascha Wildner * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43b4315fc7SSascha Wildner * Redistribution of source code of any substantial portion of the Covered 44b4315fc7SSascha Wildner * Code or modification with rights to further distribute source must include 45b4315fc7SSascha Wildner * the above Copyright Notice, the above License, this list of Conditions, 46b4315fc7SSascha Wildner * and the following Disclaimer and Export Compliance provision. In addition, 47b4315fc7SSascha Wildner * Licensee must cause all Covered Code to which Licensee contributes to 48b4315fc7SSascha Wildner * contain a file documenting the changes Licensee made to create that Covered 49b4315fc7SSascha Wildner * Code and the date of any change. Licensee must include in that file the 50b4315fc7SSascha Wildner * documentation of any changes made by any predecessor Licensee. Licensee 51b4315fc7SSascha Wildner * must include a prominent statement that the modification is derived, 52b4315fc7SSascha Wildner * directly or indirectly, from Original Intel Code. 53b4315fc7SSascha Wildner * 54b4315fc7SSascha Wildner * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55b4315fc7SSascha Wildner * Redistribution of source code of any substantial portion of the Covered 56b4315fc7SSascha Wildner * Code or modification without rights to further distribute source must 57b4315fc7SSascha Wildner * include the following Disclaimer and Export Compliance provision in the 58b4315fc7SSascha Wildner * documentation and/or other materials provided with distribution. In 59b4315fc7SSascha Wildner * addition, Licensee may not authorize further sublicense of source of any 60b4315fc7SSascha Wildner * portion of the Covered Code, and must include terms to the effect that the 61b4315fc7SSascha Wildner * license from Licensee to its licensee is limited to the intellectual 62b4315fc7SSascha Wildner * property embodied in the software Licensee provides to its licensee, and 63b4315fc7SSascha Wildner * not to intellectual property embodied in modifications its licensee may 64b4315fc7SSascha Wildner * make. 65b4315fc7SSascha Wildner * 66b4315fc7SSascha Wildner * 3.3. Redistribution of Executable. Redistribution in executable form of any 67b4315fc7SSascha Wildner * substantial portion of the Covered Code or modification must reproduce the 68b4315fc7SSascha Wildner * above Copyright Notice, and the following Disclaimer and Export Compliance 69b4315fc7SSascha Wildner * provision in the documentation and/or other materials provided with the 70b4315fc7SSascha Wildner * distribution. 71b4315fc7SSascha Wildner * 72b4315fc7SSascha Wildner * 3.4. Intel retains all right, title, and interest in and to the Original 73b4315fc7SSascha Wildner * Intel Code. 74b4315fc7SSascha Wildner * 75b4315fc7SSascha Wildner * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76b4315fc7SSascha Wildner * Intel shall be used in advertising or otherwise to promote the sale, use or 77b4315fc7SSascha Wildner * other dealings in products derived from or relating to the Covered Code 78b4315fc7SSascha Wildner * without prior written authorization from Intel. 79b4315fc7SSascha Wildner * 80b4315fc7SSascha Wildner * 4. Disclaimer and Export Compliance 81b4315fc7SSascha Wildner * 82b4315fc7SSascha Wildner * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83b4315fc7SSascha Wildner * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84b4315fc7SSascha Wildner * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85b4315fc7SSascha Wildner * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86b4315fc7SSascha Wildner * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87b4315fc7SSascha Wildner * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88b4315fc7SSascha Wildner * PARTICULAR PURPOSE. 89b4315fc7SSascha Wildner * 90b4315fc7SSascha Wildner * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91b4315fc7SSascha Wildner * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92b4315fc7SSascha Wildner * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93b4315fc7SSascha Wildner * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94b4315fc7SSascha Wildner * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95b4315fc7SSascha Wildner * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96b4315fc7SSascha Wildner * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97b4315fc7SSascha Wildner * LIMITED REMEDY. 98b4315fc7SSascha Wildner * 99b4315fc7SSascha Wildner * 4.3. Licensee shall not export, either directly or indirectly, any of this 100b4315fc7SSascha Wildner * software or system incorporating such software without first obtaining any 101b4315fc7SSascha Wildner * required license or other approval from the U. S. Department of Commerce or 102b4315fc7SSascha Wildner * any other agency or department of the United States Government. In the 103b4315fc7SSascha Wildner * event Licensee exports any such software from the United States or 104b4315fc7SSascha Wildner * re-exports any such software from a foreign destination, Licensee shall 105b4315fc7SSascha Wildner * ensure that the distribution and export/re-export of the software is in 106b4315fc7SSascha Wildner * compliance with all laws, regulations, orders, or other restrictions of the 107b4315fc7SSascha Wildner * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108b4315fc7SSascha Wildner * any of its subsidiaries will export/re-export any technical data, process, 109b4315fc7SSascha Wildner * software, or service, directly or indirectly, to any country for which the 110b4315fc7SSascha Wildner * United States government or any agency thereof requires an export license, 111b4315fc7SSascha Wildner * other governmental approval, or letter of assurance, without first obtaining 112b4315fc7SSascha Wildner * such license, approval or letter. 113b4315fc7SSascha Wildner * 114b4315fc7SSascha Wildner ***************************************************************************** 115b4315fc7SSascha Wildner * 116b4315fc7SSascha Wildner * Alternatively, you may choose to be licensed under the terms of the 117b4315fc7SSascha Wildner * following license: 118b4315fc7SSascha Wildner * 1190d02842fSSascha Wildner * Redistribution and use in source and binary forms, with or without 1200d02842fSSascha Wildner * modification, are permitted provided that the following conditions 1210d02842fSSascha Wildner * are met: 1220d02842fSSascha Wildner * 1. Redistributions of source code must retain the above copyright 1230d02842fSSascha Wildner * notice, this list of conditions, and the following disclaimer, 1240d02842fSSascha Wildner * without modification. 1250d02842fSSascha Wildner * 2. Redistributions in binary form must reproduce at minimum a disclaimer 1260d02842fSSascha Wildner * substantially similar to the "NO WARRANTY" disclaimer below 1270d02842fSSascha Wildner * ("Disclaimer") and any redistribution must be conditioned upon 1280d02842fSSascha Wildner * including a substantially similar Disclaimer requirement for further 1290d02842fSSascha Wildner * binary redistribution. 1300d02842fSSascha Wildner * 3. Neither the names of the above-listed copyright holders nor the names 1310d02842fSSascha Wildner * of any contributors may be used to endorse or promote products derived 1320d02842fSSascha Wildner * from this software without specific prior written permission. 1330d02842fSSascha Wildner * 134b4315fc7SSascha Wildner * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135b4315fc7SSascha Wildner * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136b4315fc7SSascha Wildner * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137b4315fc7SSascha Wildner * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138b4315fc7SSascha Wildner * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139b4315fc7SSascha Wildner * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140b4315fc7SSascha Wildner * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141b4315fc7SSascha Wildner * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142b4315fc7SSascha Wildner * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143b4315fc7SSascha Wildner * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144b4315fc7SSascha Wildner * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145b4315fc7SSascha Wildner * 146b4315fc7SSascha Wildner * Alternatively, you may choose to be licensed under the terms of the 1470d02842fSSascha Wildner * GNU General Public License ("GPL") version 2 as published by the Free 1480d02842fSSascha Wildner * Software Foundation. 1490d02842fSSascha Wildner * 150b4315fc7SSascha Wildner *****************************************************************************/ 1510d02842fSSascha Wildner 1520d02842fSSascha Wildner #include "acpi.h" 1530d02842fSSascha Wildner #include "accommon.h" 1540d02842fSSascha Wildner #include "acparser.h" 1550d02842fSSascha Wildner #include "acinterp.h" 1560d02842fSSascha Wildner #include "acevents.h" 1570d02842fSSascha Wildner #include "amlcode.h" 1580d02842fSSascha Wildner 1590d02842fSSascha Wildner 1600d02842fSSascha Wildner #define _COMPONENT ACPI_EXECUTER 1610d02842fSSascha Wildner ACPI_MODULE_NAME ("exoparg2") 1620d02842fSSascha Wildner 1630d02842fSSascha Wildner 1640d02842fSSascha Wildner /*! 1650d02842fSSascha Wildner * Naming convention for AML interpreter execution routines. 1660d02842fSSascha Wildner * 1670d02842fSSascha Wildner * The routines that begin execution of AML opcodes are named with a common 1680d02842fSSascha Wildner * convention based upon the number of arguments, the number of target operands, 1690d02842fSSascha Wildner * and whether or not a value is returned: 1700d02842fSSascha Wildner * 1710d02842fSSascha Wildner * AcpiExOpcode_xA_yT_zR 1720d02842fSSascha Wildner * 1730d02842fSSascha Wildner * Where: 1740d02842fSSascha Wildner * 1750d02842fSSascha Wildner * xA - ARGUMENTS: The number of arguments (input operands) that are 1760d02842fSSascha Wildner * required for this opcode type (1 through 6 args). 1770d02842fSSascha Wildner * yT - TARGETS: The number of targets (output operands) that are required 1780d02842fSSascha Wildner * for this opcode type (0, 1, or 2 targets). 1790d02842fSSascha Wildner * zR - RETURN VALUE: Indicates whether this opcode type returns a value 1800d02842fSSascha Wildner * as the function return (0 or 1). 1810d02842fSSascha Wildner * 1820d02842fSSascha Wildner * The AcpiExOpcode* functions are called via the Dispatcher component with 1830d02842fSSascha Wildner * fully resolved operands. 1840d02842fSSascha Wildner !*/ 1850d02842fSSascha Wildner 1860d02842fSSascha Wildner 1870d02842fSSascha Wildner /******************************************************************************* 1880d02842fSSascha Wildner * 1890d02842fSSascha Wildner * FUNCTION: AcpiExOpcode_2A_0T_0R 1900d02842fSSascha Wildner * 1910d02842fSSascha Wildner * PARAMETERS: WalkState - Current walk state 1920d02842fSSascha Wildner * 1930d02842fSSascha Wildner * RETURN: Status 1940d02842fSSascha Wildner * 1950d02842fSSascha Wildner * DESCRIPTION: Execute opcode with two arguments, no target, and no return 1960d02842fSSascha Wildner * value. 1970d02842fSSascha Wildner * 1980d02842fSSascha Wildner * ALLOCATION: Deletes both operands 1990d02842fSSascha Wildner * 2000d02842fSSascha Wildner ******************************************************************************/ 2010d02842fSSascha Wildner 2020d02842fSSascha Wildner ACPI_STATUS 2030d02842fSSascha Wildner AcpiExOpcode_2A_0T_0R ( 2040d02842fSSascha Wildner ACPI_WALK_STATE *WalkState) 2050d02842fSSascha Wildner { 2060d02842fSSascha Wildner ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; 2070d02842fSSascha Wildner ACPI_NAMESPACE_NODE *Node; 2080d02842fSSascha Wildner UINT32 Value; 2090d02842fSSascha Wildner ACPI_STATUS Status = AE_OK; 2100d02842fSSascha Wildner 2110d02842fSSascha Wildner 2120d02842fSSascha Wildner ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_0T_0R, 2130d02842fSSascha Wildner AcpiPsGetOpcodeName (WalkState->Opcode)); 2140d02842fSSascha Wildner 2150d02842fSSascha Wildner 2160d02842fSSascha Wildner /* Examine the opcode */ 2170d02842fSSascha Wildner 2180d02842fSSascha Wildner switch (WalkState->Opcode) 2190d02842fSSascha Wildner { 2200d02842fSSascha Wildner case AML_NOTIFY_OP: /* Notify (NotifyObject, NotifyValue) */ 2210d02842fSSascha Wildner 2220d02842fSSascha Wildner /* The first operand is a namespace node */ 2230d02842fSSascha Wildner 2240d02842fSSascha Wildner Node = (ACPI_NAMESPACE_NODE *) Operand[0]; 2250d02842fSSascha Wildner 2260d02842fSSascha Wildner /* Second value is the notify value */ 2270d02842fSSascha Wildner 2280d02842fSSascha Wildner Value = (UINT32) Operand[1]->Integer.Value; 2290d02842fSSascha Wildner 2300d02842fSSascha Wildner /* Are notifies allowed on this object? */ 2310d02842fSSascha Wildner 2320d02842fSSascha Wildner if (!AcpiEvIsNotifyObject (Node)) 2330d02842fSSascha Wildner { 2340d02842fSSascha Wildner ACPI_ERROR ((AE_INFO, 2350d02842fSSascha Wildner "Unexpected notify object type [%s]", 2360d02842fSSascha Wildner AcpiUtGetTypeName (Node->Type))); 2370d02842fSSascha Wildner 2380d02842fSSascha Wildner Status = AE_AML_OPERAND_TYPE; 2390d02842fSSascha Wildner break; 2400d02842fSSascha Wildner } 2410d02842fSSascha Wildner 2420d02842fSSascha Wildner /* 2430d02842fSSascha Wildner * Dispatch the notify to the appropriate handler 2440d02842fSSascha Wildner * NOTE: the request is queued for execution after this method 2450d02842fSSascha Wildner * completes. The notify handlers are NOT invoked synchronously 2460d02842fSSascha Wildner * from this thread -- because handlers may in turn run other 2470d02842fSSascha Wildner * control methods. 2480d02842fSSascha Wildner */ 2490d02842fSSascha Wildner Status = AcpiEvQueueNotifyRequest (Node, Value); 2500d02842fSSascha Wildner break; 2510d02842fSSascha Wildner 2520d02842fSSascha Wildner default: 2530d02842fSSascha Wildner 2540d02842fSSascha Wildner ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X", 2550d02842fSSascha Wildner WalkState->Opcode)); 2560d02842fSSascha Wildner Status = AE_AML_BAD_OPCODE; 2570d02842fSSascha Wildner } 2580d02842fSSascha Wildner 2590d02842fSSascha Wildner return_ACPI_STATUS (Status); 2600d02842fSSascha Wildner } 2610d02842fSSascha Wildner 2620d02842fSSascha Wildner 2630d02842fSSascha Wildner /******************************************************************************* 2640d02842fSSascha Wildner * 2650d02842fSSascha Wildner * FUNCTION: AcpiExOpcode_2A_2T_1R 2660d02842fSSascha Wildner * 2670d02842fSSascha Wildner * PARAMETERS: WalkState - Current walk state 2680d02842fSSascha Wildner * 2690d02842fSSascha Wildner * RETURN: Status 2700d02842fSSascha Wildner * 2710d02842fSSascha Wildner * DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets 2720d02842fSSascha Wildner * and one implicit return value. 2730d02842fSSascha Wildner * 2740d02842fSSascha Wildner ******************************************************************************/ 2750d02842fSSascha Wildner 2760d02842fSSascha Wildner ACPI_STATUS 2770d02842fSSascha Wildner AcpiExOpcode_2A_2T_1R ( 2780d02842fSSascha Wildner ACPI_WALK_STATE *WalkState) 2790d02842fSSascha Wildner { 2800d02842fSSascha Wildner ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; 2810d02842fSSascha Wildner ACPI_OPERAND_OBJECT *ReturnDesc1 = NULL; 2820d02842fSSascha Wildner ACPI_OPERAND_OBJECT *ReturnDesc2 = NULL; 2830d02842fSSascha Wildner ACPI_STATUS Status; 2840d02842fSSascha Wildner 2850d02842fSSascha Wildner 2860d02842fSSascha Wildner ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_2T_1R, 2870d02842fSSascha Wildner AcpiPsGetOpcodeName (WalkState->Opcode)); 2880d02842fSSascha Wildner 2890d02842fSSascha Wildner 2900d02842fSSascha Wildner /* Execute the opcode */ 2910d02842fSSascha Wildner 2920d02842fSSascha Wildner switch (WalkState->Opcode) 2930d02842fSSascha Wildner { 2940d02842fSSascha Wildner case AML_DIVIDE_OP: 2950d02842fSSascha Wildner 2960d02842fSSascha Wildner /* Divide (Dividend, Divisor, RemainderResult QuotientResult) */ 2970d02842fSSascha Wildner 2980d02842fSSascha Wildner ReturnDesc1 = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); 2990d02842fSSascha Wildner if (!ReturnDesc1) 3000d02842fSSascha Wildner { 3010d02842fSSascha Wildner Status = AE_NO_MEMORY; 3020d02842fSSascha Wildner goto Cleanup; 3030d02842fSSascha Wildner } 3040d02842fSSascha Wildner 3050d02842fSSascha Wildner ReturnDesc2 = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); 3060d02842fSSascha Wildner if (!ReturnDesc2) 3070d02842fSSascha Wildner { 3080d02842fSSascha Wildner Status = AE_NO_MEMORY; 3090d02842fSSascha Wildner goto Cleanup; 3100d02842fSSascha Wildner } 3110d02842fSSascha Wildner 3120d02842fSSascha Wildner /* Quotient to ReturnDesc1, remainder to ReturnDesc2 */ 3130d02842fSSascha Wildner 314820c5b08SSascha Wildner Status = AcpiUtDivide ( 315820c5b08SSascha Wildner Operand[0]->Integer.Value, 3160d02842fSSascha Wildner Operand[1]->Integer.Value, 3170d02842fSSascha Wildner &ReturnDesc1->Integer.Value, 3180d02842fSSascha Wildner &ReturnDesc2->Integer.Value); 3190d02842fSSascha Wildner if (ACPI_FAILURE (Status)) 3200d02842fSSascha Wildner { 3210d02842fSSascha Wildner goto Cleanup; 3220d02842fSSascha Wildner } 3230d02842fSSascha Wildner break; 3240d02842fSSascha Wildner 3250d02842fSSascha Wildner default: 3260d02842fSSascha Wildner 3270d02842fSSascha Wildner ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X", 3280d02842fSSascha Wildner WalkState->Opcode)); 329820c5b08SSascha Wildner 3300d02842fSSascha Wildner Status = AE_AML_BAD_OPCODE; 3310d02842fSSascha Wildner goto Cleanup; 3320d02842fSSascha Wildner } 3330d02842fSSascha Wildner 3340d02842fSSascha Wildner /* Store the results to the target reference operands */ 3350d02842fSSascha Wildner 3360d02842fSSascha Wildner Status = AcpiExStore (ReturnDesc2, Operand[2], WalkState); 3370d02842fSSascha Wildner if (ACPI_FAILURE (Status)) 3380d02842fSSascha Wildner { 3390d02842fSSascha Wildner goto Cleanup; 3400d02842fSSascha Wildner } 3410d02842fSSascha Wildner 3420d02842fSSascha Wildner Status = AcpiExStore (ReturnDesc1, Operand[3], WalkState); 3430d02842fSSascha Wildner if (ACPI_FAILURE (Status)) 3440d02842fSSascha Wildner { 3450d02842fSSascha Wildner goto Cleanup; 3460d02842fSSascha Wildner } 3470d02842fSSascha Wildner 3480d02842fSSascha Wildner Cleanup: 3490d02842fSSascha Wildner /* 3500d02842fSSascha Wildner * Since the remainder is not returned indirectly, remove a reference to 3510d02842fSSascha Wildner * it. Only the quotient is returned indirectly. 3520d02842fSSascha Wildner */ 3530d02842fSSascha Wildner AcpiUtRemoveReference (ReturnDesc2); 3540d02842fSSascha Wildner 3550d02842fSSascha Wildner if (ACPI_FAILURE (Status)) 3560d02842fSSascha Wildner { 3570d02842fSSascha Wildner /* Delete the return object */ 3580d02842fSSascha Wildner 3590d02842fSSascha Wildner AcpiUtRemoveReference (ReturnDesc1); 3600d02842fSSascha Wildner } 3610d02842fSSascha Wildner 3620d02842fSSascha Wildner /* Save return object (the remainder) on success */ 3630d02842fSSascha Wildner 3640d02842fSSascha Wildner else 3650d02842fSSascha Wildner { 3660d02842fSSascha Wildner WalkState->ResultObj = ReturnDesc1; 3670d02842fSSascha Wildner } 3680d02842fSSascha Wildner 3690d02842fSSascha Wildner return_ACPI_STATUS (Status); 3700d02842fSSascha Wildner } 3710d02842fSSascha Wildner 3720d02842fSSascha Wildner 3730d02842fSSascha Wildner /******************************************************************************* 3740d02842fSSascha Wildner * 3750d02842fSSascha Wildner * FUNCTION: AcpiExOpcode_2A_1T_1R 3760d02842fSSascha Wildner * 3770d02842fSSascha Wildner * PARAMETERS: WalkState - Current walk state 3780d02842fSSascha Wildner * 3790d02842fSSascha Wildner * RETURN: Status 3800d02842fSSascha Wildner * 3810d02842fSSascha Wildner * DESCRIPTION: Execute opcode with two arguments, one target, and a return 3820d02842fSSascha Wildner * value. 3830d02842fSSascha Wildner * 3840d02842fSSascha Wildner ******************************************************************************/ 3850d02842fSSascha Wildner 3860d02842fSSascha Wildner ACPI_STATUS 3870d02842fSSascha Wildner AcpiExOpcode_2A_1T_1R ( 3880d02842fSSascha Wildner ACPI_WALK_STATE *WalkState) 3890d02842fSSascha Wildner { 3900d02842fSSascha Wildner ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; 3910d02842fSSascha Wildner ACPI_OPERAND_OBJECT *ReturnDesc = NULL; 3920d02842fSSascha Wildner UINT64 Index; 3930d02842fSSascha Wildner ACPI_STATUS Status = AE_OK; 3940d02842fSSascha Wildner ACPI_SIZE Length = 0; 3950d02842fSSascha Wildner 3960d02842fSSascha Wildner 3970d02842fSSascha Wildner ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_1T_1R, 3980d02842fSSascha Wildner AcpiPsGetOpcodeName (WalkState->Opcode)); 3990d02842fSSascha Wildner 4000d02842fSSascha Wildner 4010d02842fSSascha Wildner /* Execute the opcode */ 4020d02842fSSascha Wildner 4030d02842fSSascha Wildner if (WalkState->OpInfo->Flags & AML_MATH) 4040d02842fSSascha Wildner { 4050d02842fSSascha Wildner /* All simple math opcodes (add, etc.) */ 4060d02842fSSascha Wildner 4070d02842fSSascha Wildner ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); 4080d02842fSSascha Wildner if (!ReturnDesc) 4090d02842fSSascha Wildner { 4100d02842fSSascha Wildner Status = AE_NO_MEMORY; 4110d02842fSSascha Wildner goto Cleanup; 4120d02842fSSascha Wildner } 4130d02842fSSascha Wildner 414820c5b08SSascha Wildner ReturnDesc->Integer.Value = AcpiExDoMathOp ( 415820c5b08SSascha Wildner WalkState->Opcode, 4160d02842fSSascha Wildner Operand[0]->Integer.Value, 4170d02842fSSascha Wildner Operand[1]->Integer.Value); 4180d02842fSSascha Wildner goto StoreResultToTarget; 4190d02842fSSascha Wildner } 4200d02842fSSascha Wildner 4210d02842fSSascha Wildner switch (WalkState->Opcode) 4220d02842fSSascha Wildner { 4230d02842fSSascha Wildner case AML_MOD_OP: /* Mod (Dividend, Divisor, RemainderResult (ACPI 2.0) */ 4240d02842fSSascha Wildner 4250d02842fSSascha Wildner ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); 4260d02842fSSascha Wildner if (!ReturnDesc) 4270d02842fSSascha Wildner { 4280d02842fSSascha Wildner Status = AE_NO_MEMORY; 4290d02842fSSascha Wildner goto Cleanup; 4300d02842fSSascha Wildner } 4310d02842fSSascha Wildner 4320d02842fSSascha Wildner /* ReturnDesc will contain the remainder */ 4330d02842fSSascha Wildner 434820c5b08SSascha Wildner Status = AcpiUtDivide ( 435820c5b08SSascha Wildner Operand[0]->Integer.Value, 4360d02842fSSascha Wildner Operand[1]->Integer.Value, 4370d02842fSSascha Wildner NULL, 4380d02842fSSascha Wildner &ReturnDesc->Integer.Value); 4390d02842fSSascha Wildner break; 4400d02842fSSascha Wildner 441d638c6eeSSascha Wildner case AML_CONCATENATE_OP: /* Concatenate (Data1, Data2, Result) */ 4420d02842fSSascha Wildner 443820c5b08SSascha Wildner Status = AcpiExDoConcatenate ( 444820c5b08SSascha Wildner Operand[0], Operand[1], &ReturnDesc, WalkState); 4450d02842fSSascha Wildner break; 4460d02842fSSascha Wildner 4470d02842fSSascha Wildner case AML_TO_STRING_OP: /* ToString (Buffer, Length, Result) (ACPI 2.0) */ 4480d02842fSSascha Wildner /* 4490d02842fSSascha Wildner * Input object is guaranteed to be a buffer at this point (it may have 4500d02842fSSascha Wildner * been converted.) Copy the raw buffer data to a new object of 4510d02842fSSascha Wildner * type String. 4520d02842fSSascha Wildner */ 4530d02842fSSascha Wildner 4540d02842fSSascha Wildner /* 4550d02842fSSascha Wildner * Get the length of the new string. It is the smallest of: 4560d02842fSSascha Wildner * 1) Length of the input buffer 4570d02842fSSascha Wildner * 2) Max length as specified in the ToString operator 4580d02842fSSascha Wildner * 3) Length of input buffer up to a zero byte (null terminator) 4590d02842fSSascha Wildner * 4600d02842fSSascha Wildner * NOTE: A length of zero is ok, and will create a zero-length, null 4610d02842fSSascha Wildner * terminated string. 4620d02842fSSascha Wildner */ 463ef944814SSascha Wildner while ((Length < Operand[0]->Buffer.Length) && /* Length of input buffer */ 464ef944814SSascha Wildner (Length < Operand[1]->Integer.Value) && /* Length operand */ 465ef944814SSascha Wildner (Operand[0]->Buffer.Pointer[Length])) /* Null terminator */ 4660d02842fSSascha Wildner { 4670d02842fSSascha Wildner Length++; 4680d02842fSSascha Wildner } 4690d02842fSSascha Wildner 4700d02842fSSascha Wildner /* Allocate a new string object */ 4710d02842fSSascha Wildner 4720d02842fSSascha Wildner ReturnDesc = AcpiUtCreateStringObject (Length); 4730d02842fSSascha Wildner if (!ReturnDesc) 4740d02842fSSascha Wildner { 4750d02842fSSascha Wildner Status = AE_NO_MEMORY; 4760d02842fSSascha Wildner goto Cleanup; 4770d02842fSSascha Wildner } 4780d02842fSSascha Wildner 4790d02842fSSascha Wildner /* 4800d02842fSSascha Wildner * Copy the raw buffer data with no transform. 4810d02842fSSascha Wildner * (NULL terminated already) 4820d02842fSSascha Wildner */ 48325ca8c79SSascha Wildner memcpy (ReturnDesc->String.Pointer, 4840d02842fSSascha Wildner Operand[0]->Buffer.Pointer, Length); 4850d02842fSSascha Wildner break; 4860d02842fSSascha Wildner 487d638c6eeSSascha Wildner case AML_CONCATENATE_TEMPLATE_OP: 4880d02842fSSascha Wildner 4890d02842fSSascha Wildner /* ConcatenateResTemplate (Buffer, Buffer, Result) (ACPI 2.0) */ 4900d02842fSSascha Wildner 491820c5b08SSascha Wildner Status = AcpiExConcatTemplate ( 492820c5b08SSascha Wildner Operand[0], Operand[1], &ReturnDesc, WalkState); 4930d02842fSSascha Wildner break; 4940d02842fSSascha Wildner 4950d02842fSSascha Wildner case AML_INDEX_OP: /* Index (Source Index Result) */ 4960d02842fSSascha Wildner 4970d02842fSSascha Wildner /* Create the internal return object */ 4980d02842fSSascha Wildner 4990d02842fSSascha Wildner ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_REFERENCE); 5000d02842fSSascha Wildner if (!ReturnDesc) 5010d02842fSSascha Wildner { 5020d02842fSSascha Wildner Status = AE_NO_MEMORY; 5030d02842fSSascha Wildner goto Cleanup; 5040d02842fSSascha Wildner } 5050d02842fSSascha Wildner 5060d02842fSSascha Wildner /* Initialize the Index reference object */ 5070d02842fSSascha Wildner 5080d02842fSSascha Wildner Index = Operand[1]->Integer.Value; 5090d02842fSSascha Wildner ReturnDesc->Reference.Value = (UINT32) Index; 5100d02842fSSascha Wildner ReturnDesc->Reference.Class = ACPI_REFCLASS_INDEX; 5110d02842fSSascha Wildner 5120d02842fSSascha Wildner /* 5130d02842fSSascha Wildner * At this point, the Source operand is a String, Buffer, or Package. 5140d02842fSSascha Wildner * Verify that the index is within range. 5150d02842fSSascha Wildner */ 5160d02842fSSascha Wildner switch ((Operand[0])->Common.Type) 5170d02842fSSascha Wildner { 5180d02842fSSascha Wildner case ACPI_TYPE_STRING: 5190d02842fSSascha Wildner 5200d02842fSSascha Wildner if (Index >= Operand[0]->String.Length) 5210d02842fSSascha Wildner { 5220d02842fSSascha Wildner Length = Operand[0]->String.Length; 5230d02842fSSascha Wildner Status = AE_AML_STRING_LIMIT; 5240d02842fSSascha Wildner } 5250d02842fSSascha Wildner 5260d02842fSSascha Wildner ReturnDesc->Reference.TargetType = ACPI_TYPE_BUFFER_FIELD; 52725ca8c79SSascha Wildner ReturnDesc->Reference.IndexPointer = 52825ca8c79SSascha Wildner &(Operand[0]->Buffer.Pointer [Index]); 5290d02842fSSascha Wildner break; 5300d02842fSSascha Wildner 5310d02842fSSascha Wildner case ACPI_TYPE_BUFFER: 5320d02842fSSascha Wildner 5330d02842fSSascha Wildner if (Index >= Operand[0]->Buffer.Length) 5340d02842fSSascha Wildner { 5350d02842fSSascha Wildner Length = Operand[0]->Buffer.Length; 5360d02842fSSascha Wildner Status = AE_AML_BUFFER_LIMIT; 5370d02842fSSascha Wildner } 5380d02842fSSascha Wildner 5390d02842fSSascha Wildner ReturnDesc->Reference.TargetType = ACPI_TYPE_BUFFER_FIELD; 54025ca8c79SSascha Wildner ReturnDesc->Reference.IndexPointer = 54125ca8c79SSascha Wildner &(Operand[0]->Buffer.Pointer [Index]); 5420d02842fSSascha Wildner break; 5430d02842fSSascha Wildner 5440d02842fSSascha Wildner case ACPI_TYPE_PACKAGE: 5450d02842fSSascha Wildner 5460d02842fSSascha Wildner if (Index >= Operand[0]->Package.Count) 5470d02842fSSascha Wildner { 5480d02842fSSascha Wildner Length = Operand[0]->Package.Count; 5490d02842fSSascha Wildner Status = AE_AML_PACKAGE_LIMIT; 5500d02842fSSascha Wildner } 5510d02842fSSascha Wildner 5520d02842fSSascha Wildner ReturnDesc->Reference.TargetType = ACPI_TYPE_PACKAGE; 55325ca8c79SSascha Wildner ReturnDesc->Reference.Where = 55425ca8c79SSascha Wildner &Operand[0]->Package.Elements [Index]; 5550d02842fSSascha Wildner break; 5560d02842fSSascha Wildner 5570d02842fSSascha Wildner default: 5580d02842fSSascha Wildner 5593c639e0cSSascha Wildner ACPI_ERROR ((AE_INFO, 5603c639e0cSSascha Wildner "Invalid object type: %X", (Operand[0])->Common.Type)); 5610d02842fSSascha Wildner Status = AE_AML_INTERNAL; 5620d02842fSSascha Wildner goto Cleanup; 5630d02842fSSascha Wildner } 5640d02842fSSascha Wildner 5650d02842fSSascha Wildner /* Failure means that the Index was beyond the end of the object */ 5660d02842fSSascha Wildner 5670d02842fSSascha Wildner if (ACPI_FAILURE (Status)) 5680d02842fSSascha Wildner { 569*ff4021a0SSascha Wildner ACPI_BIOS_EXCEPTION ((AE_INFO, Status, 5700d02842fSSascha Wildner "Index (0x%X%8.8X) is beyond end of object (length 0x%X)", 5710d02842fSSascha Wildner ACPI_FORMAT_UINT64 (Index), (UINT32) Length)); 5720d02842fSSascha Wildner goto Cleanup; 5730d02842fSSascha Wildner } 5740d02842fSSascha Wildner 5750d02842fSSascha Wildner /* 5760d02842fSSascha Wildner * Save the target object and add a reference to it for the life 5770d02842fSSascha Wildner * of the index 5780d02842fSSascha Wildner */ 5790d02842fSSascha Wildner ReturnDesc->Reference.Object = Operand[0]; 5800d02842fSSascha Wildner AcpiUtAddReference (Operand[0]); 5810d02842fSSascha Wildner 5820d02842fSSascha Wildner /* Store the reference to the Target */ 5830d02842fSSascha Wildner 5840d02842fSSascha Wildner Status = AcpiExStore (ReturnDesc, Operand[2], WalkState); 5850d02842fSSascha Wildner 5860d02842fSSascha Wildner /* Return the reference */ 5870d02842fSSascha Wildner 5880d02842fSSascha Wildner WalkState->ResultObj = ReturnDesc; 5890d02842fSSascha Wildner goto Cleanup; 5900d02842fSSascha Wildner 5910d02842fSSascha Wildner default: 5920d02842fSSascha Wildner 5930d02842fSSascha Wildner ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X", 5940d02842fSSascha Wildner WalkState->Opcode)); 5950d02842fSSascha Wildner Status = AE_AML_BAD_OPCODE; 5960d02842fSSascha Wildner break; 5970d02842fSSascha Wildner } 5980d02842fSSascha Wildner 5990d02842fSSascha Wildner 6000d02842fSSascha Wildner StoreResultToTarget: 6010d02842fSSascha Wildner 6020d02842fSSascha Wildner if (ACPI_SUCCESS (Status)) 6030d02842fSSascha Wildner { 6040d02842fSSascha Wildner /* 6050d02842fSSascha Wildner * Store the result of the operation (which is now in ReturnDesc) into 6060d02842fSSascha Wildner * the Target descriptor. 6070d02842fSSascha Wildner */ 6080d02842fSSascha Wildner Status = AcpiExStore (ReturnDesc, Operand[2], WalkState); 6090d02842fSSascha Wildner if (ACPI_FAILURE (Status)) 6100d02842fSSascha Wildner { 6110d02842fSSascha Wildner goto Cleanup; 6120d02842fSSascha Wildner } 6130d02842fSSascha Wildner 6140d02842fSSascha Wildner if (!WalkState->ResultObj) 6150d02842fSSascha Wildner { 6160d02842fSSascha Wildner WalkState->ResultObj = ReturnDesc; 6170d02842fSSascha Wildner } 6180d02842fSSascha Wildner } 6190d02842fSSascha Wildner 6200d02842fSSascha Wildner 6210d02842fSSascha Wildner Cleanup: 6220d02842fSSascha Wildner 6230d02842fSSascha Wildner /* Delete return object on error */ 6240d02842fSSascha Wildner 6250d02842fSSascha Wildner if (ACPI_FAILURE (Status)) 6260d02842fSSascha Wildner { 6270d02842fSSascha Wildner AcpiUtRemoveReference (ReturnDesc); 6280d02842fSSascha Wildner WalkState->ResultObj = NULL; 6290d02842fSSascha Wildner } 6300d02842fSSascha Wildner 6310d02842fSSascha Wildner return_ACPI_STATUS (Status); 6320d02842fSSascha Wildner } 6330d02842fSSascha Wildner 6340d02842fSSascha Wildner 6350d02842fSSascha Wildner /******************************************************************************* 6360d02842fSSascha Wildner * 6370d02842fSSascha Wildner * FUNCTION: AcpiExOpcode_2A_0T_1R 6380d02842fSSascha Wildner * 6390d02842fSSascha Wildner * PARAMETERS: WalkState - Current walk state 6400d02842fSSascha Wildner * 6410d02842fSSascha Wildner * RETURN: Status 6420d02842fSSascha Wildner * 6430d02842fSSascha Wildner * DESCRIPTION: Execute opcode with 2 arguments, no target, and a return value 6440d02842fSSascha Wildner * 6450d02842fSSascha Wildner ******************************************************************************/ 6460d02842fSSascha Wildner 6470d02842fSSascha Wildner ACPI_STATUS 6480d02842fSSascha Wildner AcpiExOpcode_2A_0T_1R ( 6490d02842fSSascha Wildner ACPI_WALK_STATE *WalkState) 6500d02842fSSascha Wildner { 6510d02842fSSascha Wildner ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; 6520d02842fSSascha Wildner ACPI_OPERAND_OBJECT *ReturnDesc = NULL; 6530d02842fSSascha Wildner ACPI_STATUS Status = AE_OK; 6540d02842fSSascha Wildner BOOLEAN LogicalResult = FALSE; 6550d02842fSSascha Wildner 6560d02842fSSascha Wildner 6570d02842fSSascha Wildner ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_0T_1R, 6580d02842fSSascha Wildner AcpiPsGetOpcodeName (WalkState->Opcode)); 6590d02842fSSascha Wildner 6600d02842fSSascha Wildner 6610d02842fSSascha Wildner /* Create the internal return object */ 6620d02842fSSascha Wildner 6630d02842fSSascha Wildner ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); 6640d02842fSSascha Wildner if (!ReturnDesc) 6650d02842fSSascha Wildner { 6660d02842fSSascha Wildner Status = AE_NO_MEMORY; 6670d02842fSSascha Wildner goto Cleanup; 6680d02842fSSascha Wildner } 6690d02842fSSascha Wildner 6700d02842fSSascha Wildner /* Execute the Opcode */ 6710d02842fSSascha Wildner 6720d02842fSSascha Wildner if (WalkState->OpInfo->Flags & AML_LOGICAL_NUMERIC) 6730d02842fSSascha Wildner { 6740d02842fSSascha Wildner /* LogicalOp (Operand0, Operand1) */ 6750d02842fSSascha Wildner 6760d02842fSSascha Wildner Status = AcpiExDoLogicalNumericOp (WalkState->Opcode, 6770d02842fSSascha Wildner Operand[0]->Integer.Value, Operand[1]->Integer.Value, 6780d02842fSSascha Wildner &LogicalResult); 6790d02842fSSascha Wildner goto StoreLogicalResult; 6800d02842fSSascha Wildner } 6810d02842fSSascha Wildner else if (WalkState->OpInfo->Flags & AML_LOGICAL) 6820d02842fSSascha Wildner { 6830d02842fSSascha Wildner /* LogicalOp (Operand0, Operand1) */ 6840d02842fSSascha Wildner 6850d02842fSSascha Wildner Status = AcpiExDoLogicalOp (WalkState->Opcode, Operand[0], 6860d02842fSSascha Wildner Operand[1], &LogicalResult); 6870d02842fSSascha Wildner goto StoreLogicalResult; 6880d02842fSSascha Wildner } 6890d02842fSSascha Wildner 6900d02842fSSascha Wildner switch (WalkState->Opcode) 6910d02842fSSascha Wildner { 6920d02842fSSascha Wildner case AML_ACQUIRE_OP: /* Acquire (MutexObject, Timeout) */ 6930d02842fSSascha Wildner 6940d02842fSSascha Wildner Status = AcpiExAcquireMutex (Operand[1], Operand[0], WalkState); 6950d02842fSSascha Wildner if (Status == AE_TIME) 6960d02842fSSascha Wildner { 6970d02842fSSascha Wildner LogicalResult = TRUE; /* TRUE = Acquire timed out */ 6980d02842fSSascha Wildner Status = AE_OK; 6990d02842fSSascha Wildner } 7000d02842fSSascha Wildner break; 7010d02842fSSascha Wildner 7020d02842fSSascha Wildner 7030d02842fSSascha Wildner case AML_WAIT_OP: /* Wait (EventObject, Timeout) */ 7040d02842fSSascha Wildner 7050d02842fSSascha Wildner Status = AcpiExSystemWaitEvent (Operand[1], Operand[0]); 7060d02842fSSascha Wildner if (Status == AE_TIME) 7070d02842fSSascha Wildner { 7080d02842fSSascha Wildner LogicalResult = TRUE; /* TRUE, Wait timed out */ 7090d02842fSSascha Wildner Status = AE_OK; 7100d02842fSSascha Wildner } 7110d02842fSSascha Wildner break; 7120d02842fSSascha Wildner 7130d02842fSSascha Wildner default: 7140d02842fSSascha Wildner 7150d02842fSSascha Wildner ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X", 7160d02842fSSascha Wildner WalkState->Opcode)); 717820c5b08SSascha Wildner 7180d02842fSSascha Wildner Status = AE_AML_BAD_OPCODE; 7190d02842fSSascha Wildner goto Cleanup; 7200d02842fSSascha Wildner } 7210d02842fSSascha Wildner 7220d02842fSSascha Wildner 7230d02842fSSascha Wildner StoreLogicalResult: 7240d02842fSSascha Wildner /* 7250d02842fSSascha Wildner * Set return value to according to LogicalResult. logical TRUE (all ones) 7260d02842fSSascha Wildner * Default is FALSE (zero) 7270d02842fSSascha Wildner */ 7280d02842fSSascha Wildner if (LogicalResult) 7290d02842fSSascha Wildner { 7300d02842fSSascha Wildner ReturnDesc->Integer.Value = ACPI_UINT64_MAX; 7310d02842fSSascha Wildner } 7320d02842fSSascha Wildner 7330d02842fSSascha Wildner Cleanup: 7340d02842fSSascha Wildner 7350d02842fSSascha Wildner /* Delete return object on error */ 7360d02842fSSascha Wildner 7370d02842fSSascha Wildner if (ACPI_FAILURE (Status)) 7380d02842fSSascha Wildner { 7390d02842fSSascha Wildner AcpiUtRemoveReference (ReturnDesc); 7400d02842fSSascha Wildner } 7410d02842fSSascha Wildner 7420d02842fSSascha Wildner /* Save return object on success */ 7430d02842fSSascha Wildner 7440d02842fSSascha Wildner else 7450d02842fSSascha Wildner { 7460d02842fSSascha Wildner WalkState->ResultObj = ReturnDesc; 7470d02842fSSascha Wildner } 7480d02842fSSascha Wildner 7490d02842fSSascha Wildner return_ACPI_STATUS (Status); 7500d02842fSSascha Wildner } 751