10d02842fSSascha Wildner /******************************************************************************
20d02842fSSascha Wildner *
30d02842fSSascha Wildner * Module Name: dsobject - Dispatcher object management routines
40d02842fSSascha Wildner *
50d02842fSSascha Wildner *****************************************************************************/
60d02842fSSascha Wildner
7b4315fc7SSascha Wildner /******************************************************************************
8b4315fc7SSascha Wildner *
9b4315fc7SSascha Wildner * 1. Copyright Notice
10b4315fc7SSascha Wildner *
11*383048acSSascha Wildner * Some or all of this work - Copyright (c) 1999 - 2021, 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 "amlcode.h"
1560d02842fSSascha Wildner #include "acdispat.h"
1570d02842fSSascha Wildner #include "acnamesp.h"
1580d02842fSSascha Wildner #include "acinterp.h"
1590d02842fSSascha Wildner
1600d02842fSSascha Wildner #define _COMPONENT ACPI_DISPATCHER
1610d02842fSSascha Wildner ACPI_MODULE_NAME ("dsobject")
1620d02842fSSascha Wildner
1630d02842fSSascha Wildner
1640d02842fSSascha Wildner /*******************************************************************************
1650d02842fSSascha Wildner *
1660d02842fSSascha Wildner * FUNCTION: AcpiDsBuildInternalObject
1670d02842fSSascha Wildner *
1680d02842fSSascha Wildner * PARAMETERS: WalkState - Current walk state
1690d02842fSSascha Wildner * Op - Parser object to be translated
1700d02842fSSascha Wildner * ObjDescPtr - Where the ACPI internal object is returned
1710d02842fSSascha Wildner *
1720d02842fSSascha Wildner * RETURN: Status
1730d02842fSSascha Wildner *
1740d02842fSSascha Wildner * DESCRIPTION: Translate a parser Op object to the equivalent namespace object
1750d02842fSSascha Wildner * Simple objects are any objects other than a package object!
1760d02842fSSascha Wildner *
1770d02842fSSascha Wildner ******************************************************************************/
1780d02842fSSascha Wildner
1793c639e0cSSascha Wildner ACPI_STATUS
AcpiDsBuildInternalObject(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op,ACPI_OPERAND_OBJECT ** ObjDescPtr)1800d02842fSSascha Wildner AcpiDsBuildInternalObject (
1810d02842fSSascha Wildner ACPI_WALK_STATE *WalkState,
1820d02842fSSascha Wildner ACPI_PARSE_OBJECT *Op,
1830d02842fSSascha Wildner ACPI_OPERAND_OBJECT **ObjDescPtr)
1840d02842fSSascha Wildner {
1850d02842fSSascha Wildner ACPI_OPERAND_OBJECT *ObjDesc;
1860d02842fSSascha Wildner ACPI_STATUS Status;
1870d02842fSSascha Wildner
1880d02842fSSascha Wildner
1890d02842fSSascha Wildner ACPI_FUNCTION_TRACE (DsBuildInternalObject);
1900d02842fSSascha Wildner
1910d02842fSSascha Wildner
1920d02842fSSascha Wildner *ObjDescPtr = NULL;
1930d02842fSSascha Wildner if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP)
1940d02842fSSascha Wildner {
1950d02842fSSascha Wildner /*
1960d02842fSSascha Wildner * This is a named object reference. If this name was
1973c639e0cSSascha Wildner * previously looked up in the namespace, it was stored in
1983c639e0cSSascha Wildner * this op. Otherwise, go ahead and look it up now
1990d02842fSSascha Wildner */
2000d02842fSSascha Wildner if (!Op->Common.Node)
2010d02842fSSascha Wildner {
2020d02842fSSascha Wildner /* Check if we are resolving a named reference within a package */
2030d02842fSSascha Wildner
2040d02842fSSascha Wildner if ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) ||
205d638c6eeSSascha Wildner (Op->Common.Parent->Common.AmlOpcode == AML_VARIABLE_PACKAGE_OP))
2060d02842fSSascha Wildner {
2070d02842fSSascha Wildner /*
2083c639e0cSSascha Wildner * We won't resolve package elements here, we will do this
2093c639e0cSSascha Wildner * after all ACPI tables are loaded into the namespace. This
2103c639e0cSSascha Wildner * behavior supports both forward references to named objects
2113c639e0cSSascha Wildner * and external references to objects in other tables.
2120d02842fSSascha Wildner */
2133c639e0cSSascha Wildner goto CreateNewObject;
2143c639e0cSSascha Wildner }
2153c639e0cSSascha Wildner else
2163c639e0cSSascha Wildner {
2173c639e0cSSascha Wildner Status = AcpiNsLookup (WalkState->ScopeInfo,
2183c639e0cSSascha Wildner Op->Common.Value.String,
2193c639e0cSSascha Wildner ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
2203c639e0cSSascha Wildner ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL,
2213c639e0cSSascha Wildner ACPI_CAST_INDIRECT_PTR (
2223c639e0cSSascha Wildner ACPI_NAMESPACE_NODE, &(Op->Common.Node)));
2230d02842fSSascha Wildner if (ACPI_FAILURE (Status))
2240d02842fSSascha Wildner {
2257bcb6cafSSascha Wildner ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo,
2267bcb6cafSSascha Wildner Op->Common.Value.String, Status);
2270d02842fSSascha Wildner return_ACPI_STATUS (Status);
2280d02842fSSascha Wildner }
2290d02842fSSascha Wildner }
2300d02842fSSascha Wildner }
2310d02842fSSascha Wildner }
2320d02842fSSascha Wildner
2333c639e0cSSascha Wildner CreateNewObject:
2343c639e0cSSascha Wildner
2350d02842fSSascha Wildner /* Create and init a new internal ACPI object */
2360d02842fSSascha Wildner
2370d02842fSSascha Wildner ObjDesc = AcpiUtCreateInternalObject (
2380d02842fSSascha Wildner (AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode))->ObjectType);
2390d02842fSSascha Wildner if (!ObjDesc)
2400d02842fSSascha Wildner {
2410d02842fSSascha Wildner return_ACPI_STATUS (AE_NO_MEMORY);
2420d02842fSSascha Wildner }
2430d02842fSSascha Wildner
244820c5b08SSascha Wildner Status = AcpiDsInitObjectFromOp (
245820c5b08SSascha Wildner WalkState, Op, Op->Common.AmlOpcode, &ObjDesc);
2460d02842fSSascha Wildner if (ACPI_FAILURE (Status))
2470d02842fSSascha Wildner {
2480d02842fSSascha Wildner AcpiUtRemoveReference (ObjDesc);
2490d02842fSSascha Wildner return_ACPI_STATUS (Status);
2500d02842fSSascha Wildner }
2510d02842fSSascha Wildner
2523c639e0cSSascha Wildner /*
2533c639e0cSSascha Wildner * Handling for unresolved package reference elements.
2543c639e0cSSascha Wildner * These are elements that are namepaths.
2553c639e0cSSascha Wildner */
2563c639e0cSSascha Wildner if ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) ||
2573c639e0cSSascha Wildner (Op->Common.Parent->Common.AmlOpcode == AML_VARIABLE_PACKAGE_OP))
2583c639e0cSSascha Wildner {
2593c639e0cSSascha Wildner ObjDesc->Reference.Resolved = TRUE;
2603c639e0cSSascha Wildner
2613c639e0cSSascha Wildner if ((Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP) &&
2623c639e0cSSascha Wildner !ObjDesc->Reference.Node)
2633c639e0cSSascha Wildner {
2643c639e0cSSascha Wildner /*
2653c639e0cSSascha Wildner * Name was unresolved above.
2663c639e0cSSascha Wildner * Get the prefix node for later lookup
2673c639e0cSSascha Wildner */
2683c639e0cSSascha Wildner ObjDesc->Reference.Node = WalkState->ScopeInfo->Scope.Node;
2693c639e0cSSascha Wildner ObjDesc->Reference.Aml = Op->Common.Aml;
2703c639e0cSSascha Wildner ObjDesc->Reference.Resolved = FALSE;
2713c639e0cSSascha Wildner }
2723c639e0cSSascha Wildner }
2733c639e0cSSascha Wildner
2740d02842fSSascha Wildner *ObjDescPtr = ObjDesc;
2750d02842fSSascha Wildner return_ACPI_STATUS (Status);
2760d02842fSSascha Wildner }
2770d02842fSSascha Wildner
2780d02842fSSascha Wildner
2790d02842fSSascha Wildner /*******************************************************************************
2800d02842fSSascha Wildner *
2810d02842fSSascha Wildner * FUNCTION: AcpiDsBuildInternalBufferObj
2820d02842fSSascha Wildner *
2830d02842fSSascha Wildner * PARAMETERS: WalkState - Current walk state
2840d02842fSSascha Wildner * Op - Parser object to be translated
2850d02842fSSascha Wildner * BufferLength - Length of the buffer
2860d02842fSSascha Wildner * ObjDescPtr - Where the ACPI internal object is returned
2870d02842fSSascha Wildner *
2880d02842fSSascha Wildner * RETURN: Status
2890d02842fSSascha Wildner *
2900d02842fSSascha Wildner * DESCRIPTION: Translate a parser Op package object to the equivalent
2910d02842fSSascha Wildner * namespace object
2920d02842fSSascha Wildner *
2930d02842fSSascha Wildner ******************************************************************************/
2940d02842fSSascha Wildner
2950d02842fSSascha Wildner ACPI_STATUS
AcpiDsBuildInternalBufferObj(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op,UINT32 BufferLength,ACPI_OPERAND_OBJECT ** ObjDescPtr)2960d02842fSSascha Wildner AcpiDsBuildInternalBufferObj (
2970d02842fSSascha Wildner ACPI_WALK_STATE *WalkState,
2980d02842fSSascha Wildner ACPI_PARSE_OBJECT *Op,
2990d02842fSSascha Wildner UINT32 BufferLength,
3000d02842fSSascha Wildner ACPI_OPERAND_OBJECT **ObjDescPtr)
3010d02842fSSascha Wildner {
3020d02842fSSascha Wildner ACPI_PARSE_OBJECT *Arg;
3030d02842fSSascha Wildner ACPI_OPERAND_OBJECT *ObjDesc;
3040d02842fSSascha Wildner ACPI_PARSE_OBJECT *ByteList;
3050d02842fSSascha Wildner UINT32 ByteListLength = 0;
3060d02842fSSascha Wildner
3070d02842fSSascha Wildner
3080d02842fSSascha Wildner ACPI_FUNCTION_TRACE (DsBuildInternalBufferObj);
3090d02842fSSascha Wildner
3100d02842fSSascha Wildner
3110d02842fSSascha Wildner /*
3120d02842fSSascha Wildner * If we are evaluating a Named buffer object "Name (xxxx, Buffer)".
3130d02842fSSascha Wildner * The buffer object already exists (from the NS node), otherwise it must
3140d02842fSSascha Wildner * be created.
3150d02842fSSascha Wildner */
3160d02842fSSascha Wildner ObjDesc = *ObjDescPtr;
3170d02842fSSascha Wildner if (!ObjDesc)
3180d02842fSSascha Wildner {
3190d02842fSSascha Wildner /* Create a new buffer object */
3200d02842fSSascha Wildner
3210d02842fSSascha Wildner ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER);
3220d02842fSSascha Wildner *ObjDescPtr = ObjDesc;
3230d02842fSSascha Wildner if (!ObjDesc)
3240d02842fSSascha Wildner {
3250d02842fSSascha Wildner return_ACPI_STATUS (AE_NO_MEMORY);
3260d02842fSSascha Wildner }
3270d02842fSSascha Wildner }
3280d02842fSSascha Wildner
3290d02842fSSascha Wildner /*
3300d02842fSSascha Wildner * Second arg is the buffer data (optional) ByteList can be either
3310d02842fSSascha Wildner * individual bytes or a string initializer. In either case, a
3320d02842fSSascha Wildner * ByteList appears in the AML.
3330d02842fSSascha Wildner */
3340d02842fSSascha Wildner Arg = Op->Common.Value.Arg; /* skip first arg */
3350d02842fSSascha Wildner
3360d02842fSSascha Wildner ByteList = Arg->Named.Next;
3370d02842fSSascha Wildner if (ByteList)
3380d02842fSSascha Wildner {
3390d02842fSSascha Wildner if (ByteList->Common.AmlOpcode != AML_INT_BYTELIST_OP)
3400d02842fSSascha Wildner {
3410d02842fSSascha Wildner ACPI_ERROR ((AE_INFO,
3420d02842fSSascha Wildner "Expecting bytelist, found AML opcode 0x%X in op %p",
3430d02842fSSascha Wildner ByteList->Common.AmlOpcode, ByteList));
3440d02842fSSascha Wildner
3450d02842fSSascha Wildner AcpiUtRemoveReference (ObjDesc);
3460d02842fSSascha Wildner return (AE_TYPE);
3470d02842fSSascha Wildner }
3480d02842fSSascha Wildner
3490d02842fSSascha Wildner ByteListLength = (UINT32) ByteList->Common.Value.Integer;
3500d02842fSSascha Wildner }
3510d02842fSSascha Wildner
3520d02842fSSascha Wildner /*
3530d02842fSSascha Wildner * The buffer length (number of bytes) will be the larger of:
3540d02842fSSascha Wildner * 1) The specified buffer length and
3550d02842fSSascha Wildner * 2) The length of the initializer byte list
3560d02842fSSascha Wildner */
3570d02842fSSascha Wildner ObjDesc->Buffer.Length = BufferLength;
3580d02842fSSascha Wildner if (ByteListLength > BufferLength)
3590d02842fSSascha Wildner {
3600d02842fSSascha Wildner ObjDesc->Buffer.Length = ByteListLength;
3610d02842fSSascha Wildner }
3620d02842fSSascha Wildner
3630d02842fSSascha Wildner /* Allocate the buffer */
3640d02842fSSascha Wildner
3650d02842fSSascha Wildner if (ObjDesc->Buffer.Length == 0)
3660d02842fSSascha Wildner {
3670d02842fSSascha Wildner ObjDesc->Buffer.Pointer = NULL;
3680d02842fSSascha Wildner ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
3690d02842fSSascha Wildner "Buffer defined with zero length in AML, creating\n"));
3700d02842fSSascha Wildner }
3710d02842fSSascha Wildner else
3720d02842fSSascha Wildner {
373820c5b08SSascha Wildner ObjDesc->Buffer.Pointer =
374820c5b08SSascha Wildner ACPI_ALLOCATE_ZEROED (ObjDesc->Buffer.Length);
3750d02842fSSascha Wildner if (!ObjDesc->Buffer.Pointer)
3760d02842fSSascha Wildner {
3770d02842fSSascha Wildner AcpiUtDeleteObjectDesc (ObjDesc);
3780d02842fSSascha Wildner return_ACPI_STATUS (AE_NO_MEMORY);
3790d02842fSSascha Wildner }
3800d02842fSSascha Wildner
3810d02842fSSascha Wildner /* Initialize buffer from the ByteList (if present) */
3820d02842fSSascha Wildner
3830d02842fSSascha Wildner if (ByteList)
3840d02842fSSascha Wildner {
38525ca8c79SSascha Wildner memcpy (ObjDesc->Buffer.Pointer, ByteList->Named.Data,
3860d02842fSSascha Wildner ByteListLength);
3870d02842fSSascha Wildner }
3880d02842fSSascha Wildner }
3890d02842fSSascha Wildner
3900d02842fSSascha Wildner ObjDesc->Buffer.Flags |= AOPOBJ_DATA_VALID;
3910d02842fSSascha Wildner Op->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjDesc);
3920d02842fSSascha Wildner return_ACPI_STATUS (AE_OK);
3930d02842fSSascha Wildner }
3940d02842fSSascha Wildner
3950d02842fSSascha Wildner /*******************************************************************************
3960d02842fSSascha Wildner *
3970d02842fSSascha Wildner * FUNCTION: AcpiDsCreateNode
3980d02842fSSascha Wildner *
3990d02842fSSascha Wildner * PARAMETERS: WalkState - Current walk state
4000d02842fSSascha Wildner * Node - NS Node to be initialized
4010d02842fSSascha Wildner * Op - Parser object to be translated
4020d02842fSSascha Wildner *
4030d02842fSSascha Wildner * RETURN: Status
4040d02842fSSascha Wildner *
4050d02842fSSascha Wildner * DESCRIPTION: Create the object to be associated with a namespace node
4060d02842fSSascha Wildner *
4070d02842fSSascha Wildner ******************************************************************************/
4080d02842fSSascha Wildner
4090d02842fSSascha Wildner ACPI_STATUS
AcpiDsCreateNode(ACPI_WALK_STATE * WalkState,ACPI_NAMESPACE_NODE * Node,ACPI_PARSE_OBJECT * Op)4100d02842fSSascha Wildner AcpiDsCreateNode (
4110d02842fSSascha Wildner ACPI_WALK_STATE *WalkState,
4120d02842fSSascha Wildner ACPI_NAMESPACE_NODE *Node,
4130d02842fSSascha Wildner ACPI_PARSE_OBJECT *Op)
4140d02842fSSascha Wildner {
4150d02842fSSascha Wildner ACPI_STATUS Status;
4160d02842fSSascha Wildner ACPI_OPERAND_OBJECT *ObjDesc;
4170d02842fSSascha Wildner
4180d02842fSSascha Wildner
4190d02842fSSascha Wildner ACPI_FUNCTION_TRACE_PTR (DsCreateNode, Op);
4200d02842fSSascha Wildner
4210d02842fSSascha Wildner
4220d02842fSSascha Wildner /*
4230d02842fSSascha Wildner * Because of the execution pass through the non-control-method
4240d02842fSSascha Wildner * parts of the table, we can arrive here twice. Only init
4250d02842fSSascha Wildner * the named object node the first time through
4260d02842fSSascha Wildner */
4270d02842fSSascha Wildner if (AcpiNsGetAttachedObject (Node))
4280d02842fSSascha Wildner {
4290d02842fSSascha Wildner return_ACPI_STATUS (AE_OK);
4300d02842fSSascha Wildner }
4310d02842fSSascha Wildner
4320d02842fSSascha Wildner if (!Op->Common.Value.Arg)
4330d02842fSSascha Wildner {
4340d02842fSSascha Wildner /* No arguments, there is nothing to do */
4350d02842fSSascha Wildner
4360d02842fSSascha Wildner return_ACPI_STATUS (AE_OK);
4370d02842fSSascha Wildner }
4380d02842fSSascha Wildner
4390d02842fSSascha Wildner /* Build an internal object for the argument(s) */
4400d02842fSSascha Wildner
441820c5b08SSascha Wildner Status = AcpiDsBuildInternalObject (
442820c5b08SSascha Wildner WalkState, Op->Common.Value.Arg, &ObjDesc);
4430d02842fSSascha Wildner if (ACPI_FAILURE (Status))
4440d02842fSSascha Wildner {
4450d02842fSSascha Wildner return_ACPI_STATUS (Status);
4460d02842fSSascha Wildner }
4470d02842fSSascha Wildner
4480d02842fSSascha Wildner /* Re-type the object according to its argument */
4490d02842fSSascha Wildner
4500d02842fSSascha Wildner Node->Type = ObjDesc->Common.Type;
4510d02842fSSascha Wildner
4520d02842fSSascha Wildner /* Attach obj to node */
4530d02842fSSascha Wildner
4540d02842fSSascha Wildner Status = AcpiNsAttachObject (Node, ObjDesc, Node->Type);
4550d02842fSSascha Wildner
4560d02842fSSascha Wildner /* Remove local reference to the object */
4570d02842fSSascha Wildner
4580d02842fSSascha Wildner AcpiUtRemoveReference (ObjDesc);
4590d02842fSSascha Wildner return_ACPI_STATUS (Status);
4600d02842fSSascha Wildner }
4610d02842fSSascha Wildner
4620d02842fSSascha Wildner
4630d02842fSSascha Wildner /*******************************************************************************
4640d02842fSSascha Wildner *
4650d02842fSSascha Wildner * FUNCTION: AcpiDsInitObjectFromOp
4660d02842fSSascha Wildner *
4670d02842fSSascha Wildner * PARAMETERS: WalkState - Current walk state
4680d02842fSSascha Wildner * Op - Parser op used to init the internal object
4690d02842fSSascha Wildner * Opcode - AML opcode associated with the object
4700d02842fSSascha Wildner * RetObjDesc - Namespace object to be initialized
4710d02842fSSascha Wildner *
4720d02842fSSascha Wildner * RETURN: Status
4730d02842fSSascha Wildner *
4740d02842fSSascha Wildner * DESCRIPTION: Initialize a namespace object from a parser Op and its
4750d02842fSSascha Wildner * associated arguments. The namespace object is a more compact
4760d02842fSSascha Wildner * representation of the Op and its arguments.
4770d02842fSSascha Wildner *
4780d02842fSSascha Wildner ******************************************************************************/
4790d02842fSSascha Wildner
4800d02842fSSascha Wildner ACPI_STATUS
AcpiDsInitObjectFromOp(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op,UINT16 Opcode,ACPI_OPERAND_OBJECT ** RetObjDesc)4810d02842fSSascha Wildner AcpiDsInitObjectFromOp (
4820d02842fSSascha Wildner ACPI_WALK_STATE *WalkState,
4830d02842fSSascha Wildner ACPI_PARSE_OBJECT *Op,
4840d02842fSSascha Wildner UINT16 Opcode,
4850d02842fSSascha Wildner ACPI_OPERAND_OBJECT **RetObjDesc)
4860d02842fSSascha Wildner {
4870d02842fSSascha Wildner const ACPI_OPCODE_INFO *OpInfo;
4880d02842fSSascha Wildner ACPI_OPERAND_OBJECT *ObjDesc;
4890d02842fSSascha Wildner ACPI_STATUS Status = AE_OK;
4900d02842fSSascha Wildner
4910d02842fSSascha Wildner
4920d02842fSSascha Wildner ACPI_FUNCTION_TRACE (DsInitObjectFromOp);
4930d02842fSSascha Wildner
4940d02842fSSascha Wildner
4950d02842fSSascha Wildner ObjDesc = *RetObjDesc;
4960d02842fSSascha Wildner OpInfo = AcpiPsGetOpcodeInfo (Opcode);
4970d02842fSSascha Wildner if (OpInfo->Class == AML_CLASS_UNKNOWN)
4980d02842fSSascha Wildner {
4990d02842fSSascha Wildner /* Unknown opcode */
5000d02842fSSascha Wildner
5010d02842fSSascha Wildner return_ACPI_STATUS (AE_TYPE);
5020d02842fSSascha Wildner }
5030d02842fSSascha Wildner
5040d02842fSSascha Wildner /* Perform per-object initialization */
5050d02842fSSascha Wildner
5060d02842fSSascha Wildner switch (ObjDesc->Common.Type)
5070d02842fSSascha Wildner {
5080d02842fSSascha Wildner case ACPI_TYPE_BUFFER:
5090d02842fSSascha Wildner /*
5100d02842fSSascha Wildner * Defer evaluation of Buffer TermArg operand
5110d02842fSSascha Wildner */
512820c5b08SSascha Wildner ObjDesc->Buffer.Node = ACPI_CAST_PTR (
513820c5b08SSascha Wildner ACPI_NAMESPACE_NODE, WalkState->Operands[0]);
5140d02842fSSascha Wildner ObjDesc->Buffer.AmlStart = Op->Named.Data;
5150d02842fSSascha Wildner ObjDesc->Buffer.AmlLength = Op->Named.Length;
5160d02842fSSascha Wildner break;
5170d02842fSSascha Wildner
5180d02842fSSascha Wildner case ACPI_TYPE_PACKAGE:
5190d02842fSSascha Wildner /*
5203c639e0cSSascha Wildner * Defer evaluation of Package TermArg operand and all
5213c639e0cSSascha Wildner * package elements. (01/2017): We defer the element
5223c639e0cSSascha Wildner * resolution to allow forward references from the package
5233c639e0cSSascha Wildner * in order to provide compatibility with other ACPI
5243c639e0cSSascha Wildner * implementations.
5250d02842fSSascha Wildner */
526820c5b08SSascha Wildner ObjDesc->Package.Node = ACPI_CAST_PTR (
527820c5b08SSascha Wildner ACPI_NAMESPACE_NODE, WalkState->Operands[0]);
5283c639e0cSSascha Wildner
5293c639e0cSSascha Wildner if (!Op->Named.Data)
5303c639e0cSSascha Wildner {
5313c639e0cSSascha Wildner return_ACPI_STATUS (AE_OK);
5323c639e0cSSascha Wildner }
5333c639e0cSSascha Wildner
5340d02842fSSascha Wildner ObjDesc->Package.AmlStart = Op->Named.Data;
5350d02842fSSascha Wildner ObjDesc->Package.AmlLength = Op->Named.Length;
5360d02842fSSascha Wildner break;
5370d02842fSSascha Wildner
5380d02842fSSascha Wildner case ACPI_TYPE_INTEGER:
5390d02842fSSascha Wildner
5400d02842fSSascha Wildner switch (OpInfo->Type)
5410d02842fSSascha Wildner {
5420d02842fSSascha Wildner case AML_TYPE_CONSTANT:
5430d02842fSSascha Wildner /*
5440d02842fSSascha Wildner * Resolve AML Constants here - AND ONLY HERE!
5450d02842fSSascha Wildner * All constants are integers.
5460d02842fSSascha Wildner * We mark the integer with a flag that indicates that it started
5470d02842fSSascha Wildner * life as a constant -- so that stores to constants will perform
5480d02842fSSascha Wildner * as expected (noop). ZeroOp is used as a placeholder for optional
5490d02842fSSascha Wildner * target operands.
5500d02842fSSascha Wildner */
5510d02842fSSascha Wildner ObjDesc->Common.Flags = AOPOBJ_AML_CONSTANT;
5520d02842fSSascha Wildner
5530d02842fSSascha Wildner switch (Opcode)
5540d02842fSSascha Wildner {
5550d02842fSSascha Wildner case AML_ZERO_OP:
5560d02842fSSascha Wildner
5570d02842fSSascha Wildner ObjDesc->Integer.Value = 0;
5580d02842fSSascha Wildner break;
5590d02842fSSascha Wildner
5600d02842fSSascha Wildner case AML_ONE_OP:
5610d02842fSSascha Wildner
5620d02842fSSascha Wildner ObjDesc->Integer.Value = 1;
5630d02842fSSascha Wildner break;
5640d02842fSSascha Wildner
5650d02842fSSascha Wildner case AML_ONES_OP:
5660d02842fSSascha Wildner
5670d02842fSSascha Wildner ObjDesc->Integer.Value = ACPI_UINT64_MAX;
5680d02842fSSascha Wildner
5690d02842fSSascha Wildner /* Truncate value if we are executing from a 32-bit ACPI table */
5700d02842fSSascha Wildner
5710d02842fSSascha Wildner (void) AcpiExTruncateFor32bitTable (ObjDesc);
5720d02842fSSascha Wildner break;
5730d02842fSSascha Wildner
5740d02842fSSascha Wildner case AML_REVISION_OP:
5750d02842fSSascha Wildner
5760d02842fSSascha Wildner ObjDesc->Integer.Value = ACPI_CA_VERSION;
5770d02842fSSascha Wildner break;
5780d02842fSSascha Wildner
5790d02842fSSascha Wildner default:
5800d02842fSSascha Wildner
5810d02842fSSascha Wildner ACPI_ERROR ((AE_INFO,
5820d02842fSSascha Wildner "Unknown constant opcode 0x%X", Opcode));
5830d02842fSSascha Wildner Status = AE_AML_OPERAND_TYPE;
5840d02842fSSascha Wildner break;
5850d02842fSSascha Wildner }
5860d02842fSSascha Wildner break;
5870d02842fSSascha Wildner
5880d02842fSSascha Wildner case AML_TYPE_LITERAL:
5890d02842fSSascha Wildner
5900d02842fSSascha Wildner ObjDesc->Integer.Value = Op->Common.Value.Integer;
5910d02842fSSascha Wildner
5920d02842fSSascha Wildner if (AcpiExTruncateFor32bitTable (ObjDesc))
5930d02842fSSascha Wildner {
5940d02842fSSascha Wildner /* Warn if we found a 64-bit constant in a 32-bit table */
5950d02842fSSascha Wildner
5960d02842fSSascha Wildner ACPI_WARNING ((AE_INFO,
5970d02842fSSascha Wildner "Truncated 64-bit constant found in 32-bit table: %8.8X%8.8X => %8.8X",
5980d02842fSSascha Wildner ACPI_FORMAT_UINT64 (Op->Common.Value.Integer),
5990d02842fSSascha Wildner (UINT32) ObjDesc->Integer.Value));
6000d02842fSSascha Wildner }
6010d02842fSSascha Wildner break;
6020d02842fSSascha Wildner
6030d02842fSSascha Wildner default:
6040d02842fSSascha Wildner
6050d02842fSSascha Wildner ACPI_ERROR ((AE_INFO, "Unknown Integer type 0x%X",
6060d02842fSSascha Wildner OpInfo->Type));
6070d02842fSSascha Wildner Status = AE_AML_OPERAND_TYPE;
6080d02842fSSascha Wildner break;
6090d02842fSSascha Wildner }
6100d02842fSSascha Wildner break;
6110d02842fSSascha Wildner
6120d02842fSSascha Wildner case ACPI_TYPE_STRING:
6130d02842fSSascha Wildner
6140d02842fSSascha Wildner ObjDesc->String.Pointer = Op->Common.Value.String;
61525ca8c79SSascha Wildner ObjDesc->String.Length = (UINT32) strlen (Op->Common.Value.String);
6160d02842fSSascha Wildner
6170d02842fSSascha Wildner /*
6180d02842fSSascha Wildner * The string is contained in the ACPI table, don't ever try
6190d02842fSSascha Wildner * to delete it
6200d02842fSSascha Wildner */
6210d02842fSSascha Wildner ObjDesc->Common.Flags |= AOPOBJ_STATIC_POINTER;
6220d02842fSSascha Wildner break;
6230d02842fSSascha Wildner
6240d02842fSSascha Wildner case ACPI_TYPE_METHOD:
6250d02842fSSascha Wildner break;
6260d02842fSSascha Wildner
6270d02842fSSascha Wildner case ACPI_TYPE_LOCAL_REFERENCE:
6280d02842fSSascha Wildner
6290d02842fSSascha Wildner switch (OpInfo->Type)
6300d02842fSSascha Wildner {
6310d02842fSSascha Wildner case AML_TYPE_LOCAL_VARIABLE:
6320d02842fSSascha Wildner
633d638c6eeSSascha Wildner /* Local ID (0-7) is (AML opcode - base AML_FIRST_LOCAL_OP) */
6340d02842fSSascha Wildner
635d638c6eeSSascha Wildner ObjDesc->Reference.Value = ((UINT32) Opcode) - AML_FIRST_LOCAL_OP;
6360d02842fSSascha Wildner ObjDesc->Reference.Class = ACPI_REFCLASS_LOCAL;
6370d02842fSSascha Wildner
6380d02842fSSascha Wildner Status = AcpiDsMethodDataGetNode (ACPI_REFCLASS_LOCAL,
6390d02842fSSascha Wildner ObjDesc->Reference.Value, WalkState,
6400d02842fSSascha Wildner ACPI_CAST_INDIRECT_PTR (ACPI_NAMESPACE_NODE,
6410d02842fSSascha Wildner &ObjDesc->Reference.Object));
6420d02842fSSascha Wildner break;
6430d02842fSSascha Wildner
6440d02842fSSascha Wildner case AML_TYPE_METHOD_ARGUMENT:
6450d02842fSSascha Wildner
646d638c6eeSSascha Wildner /* Arg ID (0-6) is (AML opcode - base AML_FIRST_ARG_OP) */
6470d02842fSSascha Wildner
648d638c6eeSSascha Wildner ObjDesc->Reference.Value = ((UINT32) Opcode) - AML_FIRST_ARG_OP;
6490d02842fSSascha Wildner ObjDesc->Reference.Class = ACPI_REFCLASS_ARG;
6500d02842fSSascha Wildner
6510d02842fSSascha Wildner Status = AcpiDsMethodDataGetNode (ACPI_REFCLASS_ARG,
6520d02842fSSascha Wildner ObjDesc->Reference.Value, WalkState,
6530d02842fSSascha Wildner ACPI_CAST_INDIRECT_PTR (ACPI_NAMESPACE_NODE,
6540d02842fSSascha Wildner &ObjDesc->Reference.Object));
6550d02842fSSascha Wildner break;
6560d02842fSSascha Wildner
6570d02842fSSascha Wildner default: /* Object name or Debug object */
6580d02842fSSascha Wildner
6590d02842fSSascha Wildner switch (Op->Common.AmlOpcode)
6600d02842fSSascha Wildner {
6610d02842fSSascha Wildner case AML_INT_NAMEPATH_OP:
6620d02842fSSascha Wildner
6630d02842fSSascha Wildner /* Node was saved in Op */
6640d02842fSSascha Wildner
6650d02842fSSascha Wildner ObjDesc->Reference.Node = Op->Common.Node;
6660d02842fSSascha Wildner ObjDesc->Reference.Class = ACPI_REFCLASS_NAME;
6673c639e0cSSascha Wildner if (Op->Common.Node)
6683c639e0cSSascha Wildner {
6693c639e0cSSascha Wildner ObjDesc->Reference.Object = Op->Common.Node->Object;
6703c639e0cSSascha Wildner }
6710d02842fSSascha Wildner break;
6720d02842fSSascha Wildner
6730d02842fSSascha Wildner case AML_DEBUG_OP:
6740d02842fSSascha Wildner
6750d02842fSSascha Wildner ObjDesc->Reference.Class = ACPI_REFCLASS_DEBUG;
6760d02842fSSascha Wildner break;
6770d02842fSSascha Wildner
6780d02842fSSascha Wildner default:
6790d02842fSSascha Wildner
6800d02842fSSascha Wildner ACPI_ERROR ((AE_INFO,
6810d02842fSSascha Wildner "Unimplemented reference type for AML opcode: 0x%4.4X", Opcode));
6820d02842fSSascha Wildner return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
6830d02842fSSascha Wildner }
6840d02842fSSascha Wildner break;
6850d02842fSSascha Wildner }
6860d02842fSSascha Wildner break;
6870d02842fSSascha Wildner
6880d02842fSSascha Wildner default:
6890d02842fSSascha Wildner
6900d02842fSSascha Wildner ACPI_ERROR ((AE_INFO, "Unimplemented data type: 0x%X",
6910d02842fSSascha Wildner ObjDesc->Common.Type));
6920d02842fSSascha Wildner
6930d02842fSSascha Wildner Status = AE_AML_OPERAND_TYPE;
6940d02842fSSascha Wildner break;
6950d02842fSSascha Wildner }
6960d02842fSSascha Wildner
6970d02842fSSascha Wildner return_ACPI_STATUS (Status);
6980d02842fSSascha Wildner }
699