10d02842fSSascha Wildner /******************************************************************************
20d02842fSSascha Wildner *
30d02842fSSascha Wildner * Module Name: dsfield - Dispatcher field 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 "amlcode.h"
1550d02842fSSascha Wildner #include "acdispat.h"
1560d02842fSSascha Wildner #include "acinterp.h"
1570d02842fSSascha Wildner #include "acnamesp.h"
1580d02842fSSascha Wildner #include "acparser.h"
1590d02842fSSascha Wildner
1602afeb59bSSascha Wildner #ifdef ACPI_EXEC_APP
1612afeb59bSSascha Wildner #include "aecommon.h"
1622afeb59bSSascha Wildner #endif
1632afeb59bSSascha Wildner
1640d02842fSSascha Wildner
1650d02842fSSascha Wildner #define _COMPONENT ACPI_DISPATCHER
1660d02842fSSascha Wildner ACPI_MODULE_NAME ("dsfield")
1670d02842fSSascha Wildner
1680d02842fSSascha Wildner /* Local prototypes */
1690d02842fSSascha Wildner
1700d02842fSSascha Wildner #ifdef ACPI_ASL_COMPILER
1710d02842fSSascha Wildner #include "acdisasm.h"
1720d02842fSSascha Wildner
1730d02842fSSascha Wildner static ACPI_STATUS
1740d02842fSSascha Wildner AcpiDsCreateExternalRegion (
1750d02842fSSascha Wildner ACPI_STATUS LookupStatus,
1760d02842fSSascha Wildner ACPI_PARSE_OBJECT *Op,
1770d02842fSSascha Wildner char *Path,
1780d02842fSSascha Wildner ACPI_WALK_STATE *WalkState,
1790d02842fSSascha Wildner ACPI_NAMESPACE_NODE **Node);
1800d02842fSSascha Wildner #endif
1810d02842fSSascha Wildner
1820d02842fSSascha Wildner static ACPI_STATUS
1830d02842fSSascha Wildner AcpiDsGetFieldNames (
1840d02842fSSascha Wildner ACPI_CREATE_FIELD_INFO *Info,
1850d02842fSSascha Wildner ACPI_WALK_STATE *WalkState,
1860d02842fSSascha Wildner ACPI_PARSE_OBJECT *Arg);
1870d02842fSSascha Wildner
1880d02842fSSascha Wildner
1890d02842fSSascha Wildner #ifdef ACPI_ASL_COMPILER
1900d02842fSSascha Wildner /*******************************************************************************
1910d02842fSSascha Wildner *
1920d02842fSSascha Wildner * FUNCTION: AcpiDsCreateExternalRegion (iASL Disassembler only)
1930d02842fSSascha Wildner *
1940d02842fSSascha Wildner * PARAMETERS: LookupStatus - Status from NsLookup operation
1950d02842fSSascha Wildner * Op - Op containing the Field definition and args
1960d02842fSSascha Wildner * Path - Pathname of the region
1970d02842fSSascha Wildner * ` WalkState - Current method state
1980d02842fSSascha Wildner * Node - Where the new region node is returned
1990d02842fSSascha Wildner *
2000d02842fSSascha Wildner * RETURN: Status
2010d02842fSSascha Wildner *
2020d02842fSSascha Wildner * DESCRIPTION: Add region to the external list if NOT_FOUND. Create a new
2030d02842fSSascha Wildner * region node/object.
2040d02842fSSascha Wildner *
2050d02842fSSascha Wildner ******************************************************************************/
2060d02842fSSascha Wildner
2070d02842fSSascha Wildner static ACPI_STATUS
AcpiDsCreateExternalRegion(ACPI_STATUS LookupStatus,ACPI_PARSE_OBJECT * Op,char * Path,ACPI_WALK_STATE * WalkState,ACPI_NAMESPACE_NODE ** Node)2080d02842fSSascha Wildner AcpiDsCreateExternalRegion (
2090d02842fSSascha Wildner ACPI_STATUS LookupStatus,
2100d02842fSSascha Wildner ACPI_PARSE_OBJECT *Op,
2110d02842fSSascha Wildner char *Path,
2120d02842fSSascha Wildner ACPI_WALK_STATE *WalkState,
2130d02842fSSascha Wildner ACPI_NAMESPACE_NODE **Node)
2140d02842fSSascha Wildner {
2150d02842fSSascha Wildner ACPI_STATUS Status;
2160d02842fSSascha Wildner ACPI_OPERAND_OBJECT *ObjDesc;
2170d02842fSSascha Wildner
2180d02842fSSascha Wildner
2190d02842fSSascha Wildner if (LookupStatus != AE_NOT_FOUND)
2200d02842fSSascha Wildner {
2210d02842fSSascha Wildner return (LookupStatus);
2220d02842fSSascha Wildner }
2230d02842fSSascha Wildner
2240d02842fSSascha Wildner /*
2250d02842fSSascha Wildner * Table disassembly:
2260d02842fSSascha Wildner * OperationRegion not found. Generate an External for it, and
2270d02842fSSascha Wildner * insert the name into the namespace.
2280d02842fSSascha Wildner */
2290d02842fSSascha Wildner AcpiDmAddOpToExternalList (Op, Path, ACPI_TYPE_REGION, 0, 0);
230820c5b08SSascha Wildner
2310d02842fSSascha Wildner Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ACPI_TYPE_REGION,
2320d02842fSSascha Wildner ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT, WalkState, Node);
2330d02842fSSascha Wildner if (ACPI_FAILURE (Status))
2340d02842fSSascha Wildner {
2350d02842fSSascha Wildner return (Status);
2360d02842fSSascha Wildner }
2370d02842fSSascha Wildner
2380d02842fSSascha Wildner /* Must create and install a region object for the new node */
2390d02842fSSascha Wildner
2400d02842fSSascha Wildner ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_REGION);
2410d02842fSSascha Wildner if (!ObjDesc)
2420d02842fSSascha Wildner {
2430d02842fSSascha Wildner return (AE_NO_MEMORY);
2440d02842fSSascha Wildner }
2450d02842fSSascha Wildner
2460d02842fSSascha Wildner ObjDesc->Region.Node = *Node;
2470d02842fSSascha Wildner Status = AcpiNsAttachObject (*Node, ObjDesc, ACPI_TYPE_REGION);
2480d02842fSSascha Wildner return (Status);
2490d02842fSSascha Wildner }
2500d02842fSSascha Wildner #endif
2510d02842fSSascha Wildner
2520d02842fSSascha Wildner
2530d02842fSSascha Wildner /*******************************************************************************
2540d02842fSSascha Wildner *
2550d02842fSSascha Wildner * FUNCTION: AcpiDsCreateBufferField
2560d02842fSSascha Wildner *
2570d02842fSSascha Wildner * PARAMETERS: Op - Current parse op (CreateXXField)
2580d02842fSSascha Wildner * WalkState - Current state
2590d02842fSSascha Wildner *
2600d02842fSSascha Wildner * RETURN: Status
2610d02842fSSascha Wildner *
2620d02842fSSascha Wildner * DESCRIPTION: Execute the CreateField operators:
2630d02842fSSascha Wildner * CreateBitFieldOp,
2640d02842fSSascha Wildner * CreateByteFieldOp,
2650d02842fSSascha Wildner * CreateWordFieldOp,
2660d02842fSSascha Wildner * CreateDwordFieldOp,
2670d02842fSSascha Wildner * CreateQwordFieldOp,
2680d02842fSSascha Wildner * CreateFieldOp (all of which define a field in a buffer)
2690d02842fSSascha Wildner *
2700d02842fSSascha Wildner ******************************************************************************/
2710d02842fSSascha Wildner
2720d02842fSSascha Wildner ACPI_STATUS
AcpiDsCreateBufferField(ACPI_PARSE_OBJECT * Op,ACPI_WALK_STATE * WalkState)2730d02842fSSascha Wildner AcpiDsCreateBufferField (
2740d02842fSSascha Wildner ACPI_PARSE_OBJECT *Op,
2750d02842fSSascha Wildner ACPI_WALK_STATE *WalkState)
2760d02842fSSascha Wildner {
2770d02842fSSascha Wildner ACPI_PARSE_OBJECT *Arg;
2780d02842fSSascha Wildner ACPI_NAMESPACE_NODE *Node;
2790d02842fSSascha Wildner ACPI_STATUS Status;
2800d02842fSSascha Wildner ACPI_OPERAND_OBJECT *ObjDesc;
2810d02842fSSascha Wildner ACPI_OPERAND_OBJECT *SecondDesc = NULL;
2820d02842fSSascha Wildner UINT32 Flags;
2830d02842fSSascha Wildner
2840d02842fSSascha Wildner
2850d02842fSSascha Wildner ACPI_FUNCTION_TRACE (DsCreateBufferField);
2860d02842fSSascha Wildner
2870d02842fSSascha Wildner
2880d02842fSSascha Wildner /*
2890d02842fSSascha Wildner * Get the NameString argument (name of the new BufferField)
2900d02842fSSascha Wildner */
2910d02842fSSascha Wildner if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP)
2920d02842fSSascha Wildner {
2930d02842fSSascha Wildner /* For CreateField, name is the 4th argument */
2940d02842fSSascha Wildner
2950d02842fSSascha Wildner Arg = AcpiPsGetArg (Op, 3);
2960d02842fSSascha Wildner }
2970d02842fSSascha Wildner else
2980d02842fSSascha Wildner {
2990d02842fSSascha Wildner /* For all other CreateXXXField operators, name is the 3rd argument */
3000d02842fSSascha Wildner
3010d02842fSSascha Wildner Arg = AcpiPsGetArg (Op, 2);
3020d02842fSSascha Wildner }
3030d02842fSSascha Wildner
3040d02842fSSascha Wildner if (!Arg)
3050d02842fSSascha Wildner {
3060d02842fSSascha Wildner return_ACPI_STATUS (AE_AML_NO_OPERAND);
3070d02842fSSascha Wildner }
3080d02842fSSascha Wildner
3090d02842fSSascha Wildner if (WalkState->DeferredNode)
3100d02842fSSascha Wildner {
3110d02842fSSascha Wildner Node = WalkState->DeferredNode;
3120d02842fSSascha Wildner }
3130d02842fSSascha Wildner else
3140d02842fSSascha Wildner {
3150d02842fSSascha Wildner /* Execute flag should always be set when this function is entered */
3160d02842fSSascha Wildner
3170d02842fSSascha Wildner if (!(WalkState->ParseFlags & ACPI_PARSE_EXECUTE))
3180d02842fSSascha Wildner {
3193c639e0cSSascha Wildner ACPI_ERROR ((AE_INFO,
3203c639e0cSSascha Wildner "Parse execute mode is not set"));
3210d02842fSSascha Wildner return_ACPI_STATUS (AE_AML_INTERNAL);
3220d02842fSSascha Wildner }
3230d02842fSSascha Wildner
3240d02842fSSascha Wildner /* Creating new namespace node, should not already exist */
3250d02842fSSascha Wildner
3260d02842fSSascha Wildner Flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE |
3270d02842fSSascha Wildner ACPI_NS_ERROR_IF_FOUND;
3280d02842fSSascha Wildner
3290d02842fSSascha Wildner /*
3300d02842fSSascha Wildner * Mark node temporary if we are executing a normal control
3310d02842fSSascha Wildner * method. (Don't mark if this is a module-level code method)
3320d02842fSSascha Wildner */
3330d02842fSSascha Wildner if (WalkState->MethodNode &&
3340d02842fSSascha Wildner !(WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL))
3350d02842fSSascha Wildner {
3360d02842fSSascha Wildner Flags |= ACPI_NS_TEMPORARY;
3370d02842fSSascha Wildner }
3380d02842fSSascha Wildner
3390d02842fSSascha Wildner /* Enter the NameString into the namespace */
3400d02842fSSascha Wildner
341820c5b08SSascha Wildner Status = AcpiNsLookup (WalkState->ScopeInfo,
342820c5b08SSascha Wildner Arg->Common.Value.String, ACPI_TYPE_ANY,
343820c5b08SSascha Wildner ACPI_IMODE_LOAD_PASS1, Flags, WalkState, &Node);
3440f79e681SSascha Wildner if ((WalkState->ParseFlags & ACPI_PARSE_DISASSEMBLE) &&
3450f79e681SSascha Wildner Status == AE_ALREADY_EXISTS)
3460f79e681SSascha Wildner {
3470f79e681SSascha Wildner Status = AE_OK;
3480f79e681SSascha Wildner }
3490f79e681SSascha Wildner else if (ACPI_FAILURE (Status))
3500d02842fSSascha Wildner {
3517bcb6cafSSascha Wildner ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo,
3527bcb6cafSSascha Wildner Arg->Common.Value.String, Status);
3530d02842fSSascha Wildner return_ACPI_STATUS (Status);
3540d02842fSSascha Wildner }
3550d02842fSSascha Wildner }
3560d02842fSSascha Wildner
3570d02842fSSascha Wildner /*
3580d02842fSSascha Wildner * We could put the returned object (Node) on the object stack for later,
3590d02842fSSascha Wildner * but for now, we will put it in the "op" object that the parser uses,
3600d02842fSSascha Wildner * so we can get it again at the end of this scope.
3610d02842fSSascha Wildner */
3620d02842fSSascha Wildner Op->Common.Node = Node;
3630d02842fSSascha Wildner
3640d02842fSSascha Wildner /*
3650d02842fSSascha Wildner * If there is no object attached to the node, this node was just created
3660d02842fSSascha Wildner * and we need to create the field object. Otherwise, this was a lookup
3670d02842fSSascha Wildner * of an existing node and we don't want to create the field object again.
3680d02842fSSascha Wildner */
3690d02842fSSascha Wildner ObjDesc = AcpiNsGetAttachedObject (Node);
3700d02842fSSascha Wildner if (ObjDesc)
3710d02842fSSascha Wildner {
3720d02842fSSascha Wildner return_ACPI_STATUS (AE_OK);
3730d02842fSSascha Wildner }
3740d02842fSSascha Wildner
3750d02842fSSascha Wildner /*
3760d02842fSSascha Wildner * The Field definition is not fully parsed at this time.
3770d02842fSSascha Wildner * (We must save the address of the AML for the buffer and index operands)
3780d02842fSSascha Wildner */
3790d02842fSSascha Wildner
3800d02842fSSascha Wildner /* Create the buffer field object */
3810d02842fSSascha Wildner
3820d02842fSSascha Wildner ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER_FIELD);
3830d02842fSSascha Wildner if (!ObjDesc)
3840d02842fSSascha Wildner {
3850d02842fSSascha Wildner Status = AE_NO_MEMORY;
3860d02842fSSascha Wildner goto Cleanup;
3870d02842fSSascha Wildner }
3880d02842fSSascha Wildner
3890d02842fSSascha Wildner /*
390820c5b08SSascha Wildner * Remember location in AML stream of the field unit opcode and operands
391820c5b08SSascha Wildner * -- since the buffer and index operands must be evaluated.
3920d02842fSSascha Wildner */
3930d02842fSSascha Wildner SecondDesc = ObjDesc->Common.NextObject;
3940d02842fSSascha Wildner SecondDesc->Extra.AmlStart = Op->Named.Data;
3950d02842fSSascha Wildner SecondDesc->Extra.AmlLength = Op->Named.Length;
3960d02842fSSascha Wildner ObjDesc->BufferField.Node = Node;
3970d02842fSSascha Wildner
3980d02842fSSascha Wildner /* Attach constructed field descriptors to parent node */
3990d02842fSSascha Wildner
4000d02842fSSascha Wildner Status = AcpiNsAttachObject (Node, ObjDesc, ACPI_TYPE_BUFFER_FIELD);
4010d02842fSSascha Wildner if (ACPI_FAILURE (Status))
4020d02842fSSascha Wildner {
4030d02842fSSascha Wildner goto Cleanup;
4040d02842fSSascha Wildner }
4050d02842fSSascha Wildner
4060d02842fSSascha Wildner
4070d02842fSSascha Wildner Cleanup:
4080d02842fSSascha Wildner
4090d02842fSSascha Wildner /* Remove local reference to the object */
4100d02842fSSascha Wildner
4110d02842fSSascha Wildner AcpiUtRemoveReference (ObjDesc);
4120d02842fSSascha Wildner return_ACPI_STATUS (Status);
4130d02842fSSascha Wildner }
4140d02842fSSascha Wildner
4150d02842fSSascha Wildner
4160d02842fSSascha Wildner /*******************************************************************************
4170d02842fSSascha Wildner *
4180d02842fSSascha Wildner * FUNCTION: AcpiDsGetFieldNames
4190d02842fSSascha Wildner *
4200d02842fSSascha Wildner * PARAMETERS: Info - CreateField info structure
421e5412f1eSSascha Wildner * WalkState - Current method state
4220d02842fSSascha Wildner * Arg - First parser arg for the field name list
4230d02842fSSascha Wildner *
4240d02842fSSascha Wildner * RETURN: Status
4250d02842fSSascha Wildner *
4260d02842fSSascha Wildner * DESCRIPTION: Process all named fields in a field declaration. Names are
4270d02842fSSascha Wildner * entered into the namespace.
4280d02842fSSascha Wildner *
4290d02842fSSascha Wildner ******************************************************************************/
4300d02842fSSascha Wildner
4310d02842fSSascha Wildner static ACPI_STATUS
AcpiDsGetFieldNames(ACPI_CREATE_FIELD_INFO * Info,ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Arg)4320d02842fSSascha Wildner AcpiDsGetFieldNames (
4330d02842fSSascha Wildner ACPI_CREATE_FIELD_INFO *Info,
4340d02842fSSascha Wildner ACPI_WALK_STATE *WalkState,
4350d02842fSSascha Wildner ACPI_PARSE_OBJECT *Arg)
4360d02842fSSascha Wildner {
4370d02842fSSascha Wildner ACPI_STATUS Status;
4380d02842fSSascha Wildner UINT64 Position;
4390d02842fSSascha Wildner ACPI_PARSE_OBJECT *Child;
4400d02842fSSascha Wildner
4412afeb59bSSascha Wildner #ifdef ACPI_EXEC_APP
4422afeb59bSSascha Wildner ACPI_OPERAND_OBJECT *ResultDesc;
4432afeb59bSSascha Wildner ACPI_OPERAND_OBJECT *ObjDesc;
4442afeb59bSSascha Wildner char *NamePath;
4452afeb59bSSascha Wildner #endif
4462afeb59bSSascha Wildner
4470d02842fSSascha Wildner
4480d02842fSSascha Wildner ACPI_FUNCTION_TRACE_PTR (DsGetFieldNames, Info);
4490d02842fSSascha Wildner
4500d02842fSSascha Wildner
4510d02842fSSascha Wildner /* First field starts at bit zero */
4520d02842fSSascha Wildner
4530d02842fSSascha Wildner Info->FieldBitPosition = 0;
4540d02842fSSascha Wildner
4550d02842fSSascha Wildner /* Process all elements in the field list (of parse nodes) */
4560d02842fSSascha Wildner
4570d02842fSSascha Wildner while (Arg)
4580d02842fSSascha Wildner {
4590d02842fSSascha Wildner /*
4600d02842fSSascha Wildner * Four types of field elements are handled:
4610d02842fSSascha Wildner * 1) Name - Enters a new named field into the namespace
4620d02842fSSascha Wildner * 2) Offset - specifies a bit offset
4630d02842fSSascha Wildner * 3) AccessAs - changes the access mode/attributes
4640d02842fSSascha Wildner * 4) Connection - Associate a resource template with the field
4650d02842fSSascha Wildner */
4660d02842fSSascha Wildner switch (Arg->Common.AmlOpcode)
4670d02842fSSascha Wildner {
4680d02842fSSascha Wildner case AML_INT_RESERVEDFIELD_OP:
4690d02842fSSascha Wildner
470820c5b08SSascha Wildner Position = (UINT64) Info->FieldBitPosition +
471820c5b08SSascha Wildner (UINT64) Arg->Common.Value.Size;
4720d02842fSSascha Wildner
4730d02842fSSascha Wildner if (Position > ACPI_UINT32_MAX)
4740d02842fSSascha Wildner {
4750d02842fSSascha Wildner ACPI_ERROR ((AE_INFO,
4760d02842fSSascha Wildner "Bit offset within field too large (> 0xFFFFFFFF)"));
4770d02842fSSascha Wildner return_ACPI_STATUS (AE_SUPPORT);
4780d02842fSSascha Wildner }
4790d02842fSSascha Wildner
4800d02842fSSascha Wildner Info->FieldBitPosition = (UINT32) Position;
4810d02842fSSascha Wildner break;
4820d02842fSSascha Wildner
4830d02842fSSascha Wildner case AML_INT_ACCESSFIELD_OP:
4840d02842fSSascha Wildner case AML_INT_EXTACCESSFIELD_OP:
4850d02842fSSascha Wildner /*
4860d02842fSSascha Wildner * Get new AccessType, AccessAttribute, and AccessLength fields
4870d02842fSSascha Wildner * -- to be used for all field units that follow, until the
4880d02842fSSascha Wildner * end-of-field or another AccessAs keyword is encountered.
4890d02842fSSascha Wildner * NOTE. These three bytes are encoded in the integer value
4900d02842fSSascha Wildner * of the parseop for convenience.
4910d02842fSSascha Wildner *
4920d02842fSSascha Wildner * In FieldFlags, preserve the flag bits other than the
4930d02842fSSascha Wildner * ACCESS_TYPE bits.
4940d02842fSSascha Wildner */
4950d02842fSSascha Wildner
4960d02842fSSascha Wildner /* AccessType (ByteAcc, WordAcc, etc.) */
4970d02842fSSascha Wildner
4980d02842fSSascha Wildner Info->FieldFlags = (UINT8)
4990d02842fSSascha Wildner ((Info->FieldFlags & ~(AML_FIELD_ACCESS_TYPE_MASK)) |
5000d02842fSSascha Wildner ((UINT8) ((UINT32) (Arg->Common.Value.Integer & 0x07))));
5010d02842fSSascha Wildner
5020d02842fSSascha Wildner /* AccessAttribute (AttribQuick, AttribByte, etc.) */
5030d02842fSSascha Wildner
504820c5b08SSascha Wildner Info->Attribute = (UINT8)
505820c5b08SSascha Wildner ((Arg->Common.Value.Integer >> 8) & 0xFF);
5060d02842fSSascha Wildner
5070d02842fSSascha Wildner /* AccessLength (for serial/buffer protocols) */
5080d02842fSSascha Wildner
509820c5b08SSascha Wildner Info->AccessLength = (UINT8)
510820c5b08SSascha Wildner ((Arg->Common.Value.Integer >> 16) & 0xFF);
5110d02842fSSascha Wildner break;
5120d02842fSSascha Wildner
5130d02842fSSascha Wildner case AML_INT_CONNECTION_OP:
5140d02842fSSascha Wildner /*
5150d02842fSSascha Wildner * Clear any previous connection. New connection is used for all
5160d02842fSSascha Wildner * fields that follow, similar to AccessAs
5170d02842fSSascha Wildner */
5180d02842fSSascha Wildner Info->ResourceBuffer = NULL;
5190d02842fSSascha Wildner Info->ConnectionNode = NULL;
5202e2672b8SSascha Wildner Info->PinNumberIndex = 0;
5210d02842fSSascha Wildner
5220d02842fSSascha Wildner /*
5230d02842fSSascha Wildner * A Connection() is either an actual resource descriptor (buffer)
5240d02842fSSascha Wildner * or a named reference to a resource template
5250d02842fSSascha Wildner */
5260d02842fSSascha Wildner Child = Arg->Common.Value.Arg;
5270d02842fSSascha Wildner if (Child->Common.AmlOpcode == AML_INT_BYTELIST_OP)
5280d02842fSSascha Wildner {
5290d02842fSSascha Wildner Info->ResourceBuffer = Child->Named.Data;
5300d02842fSSascha Wildner Info->ResourceLength = (UINT16) Child->Named.Value.Integer;
5310d02842fSSascha Wildner }
5320d02842fSSascha Wildner else
5330d02842fSSascha Wildner {
5340d02842fSSascha Wildner /* Lookup the Connection() namepath, it should already exist */
5350d02842fSSascha Wildner
5360d02842fSSascha Wildner Status = AcpiNsLookup (WalkState->ScopeInfo,
5370d02842fSSascha Wildner Child->Common.Value.Name, ACPI_TYPE_ANY,
5380d02842fSSascha Wildner ACPI_IMODE_EXECUTE, ACPI_NS_DONT_OPEN_SCOPE,
5390d02842fSSascha Wildner WalkState, &Info->ConnectionNode);
5400d02842fSSascha Wildner if (ACPI_FAILURE (Status))
5410d02842fSSascha Wildner {
5427bcb6cafSSascha Wildner ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo,
5437bcb6cafSSascha Wildner Child->Common.Value.Name, Status);
5440d02842fSSascha Wildner return_ACPI_STATUS (Status);
5450d02842fSSascha Wildner }
5460d02842fSSascha Wildner }
5470d02842fSSascha Wildner break;
5480d02842fSSascha Wildner
5490d02842fSSascha Wildner case AML_INT_NAMEDFIELD_OP:
5500d02842fSSascha Wildner
5510d02842fSSascha Wildner /* Lookup the name, it should already exist */
5520d02842fSSascha Wildner
5530d02842fSSascha Wildner Status = AcpiNsLookup (WalkState->ScopeInfo,
5540d02842fSSascha Wildner (char *) &Arg->Named.Name, Info->FieldType,
5550d02842fSSascha Wildner ACPI_IMODE_EXECUTE, ACPI_NS_DONT_OPEN_SCOPE,
5560d02842fSSascha Wildner WalkState, &Info->FieldNode);
5570d02842fSSascha Wildner if (ACPI_FAILURE (Status))
5580d02842fSSascha Wildner {
5597bcb6cafSSascha Wildner ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo,
5607bcb6cafSSascha Wildner (char *) &Arg->Named.Name, Status);
5610d02842fSSascha Wildner return_ACPI_STATUS (Status);
5620d02842fSSascha Wildner }
5630d02842fSSascha Wildner else
5640d02842fSSascha Wildner {
5650d02842fSSascha Wildner Arg->Common.Node = Info->FieldNode;
5660d02842fSSascha Wildner Info->FieldBitLength = Arg->Common.Value.Size;
5670d02842fSSascha Wildner
5680d02842fSSascha Wildner /*
5690d02842fSSascha Wildner * If there is no object attached to the node, this node was
5700d02842fSSascha Wildner * just created and we need to create the field object.
5710d02842fSSascha Wildner * Otherwise, this was a lookup of an existing node and we
5720d02842fSSascha Wildner * don't want to create the field object again.
5730d02842fSSascha Wildner */
5740d02842fSSascha Wildner if (!AcpiNsGetAttachedObject (Info->FieldNode))
5750d02842fSSascha Wildner {
5760d02842fSSascha Wildner Status = AcpiExPrepFieldValue (Info);
5770d02842fSSascha Wildner if (ACPI_FAILURE (Status))
5780d02842fSSascha Wildner {
5790d02842fSSascha Wildner return_ACPI_STATUS (Status);
5800d02842fSSascha Wildner }
5812afeb59bSSascha Wildner #ifdef ACPI_EXEC_APP
5822afeb59bSSascha Wildner NamePath = AcpiNsGetExternalPathname (Info->FieldNode);
583e5412f1eSSascha Wildner if (ACPI_SUCCESS (AeLookupInitFileEntry (NamePath, &ObjDesc)))
5842afeb59bSSascha Wildner {
5852afeb59bSSascha Wildner AcpiExWriteDataToField (ObjDesc,
5862afeb59bSSascha Wildner AcpiNsGetAttachedObject (Info->FieldNode),
5872afeb59bSSascha Wildner &ResultDesc);
5882afeb59bSSascha Wildner AcpiUtRemoveReference (ObjDesc);
589e5412f1eSSascha Wildner }
5902afeb59bSSascha Wildner ACPI_FREE (NamePath);
5912afeb59bSSascha Wildner #endif
5920d02842fSSascha Wildner }
5930d02842fSSascha Wildner }
5940d02842fSSascha Wildner
5950d02842fSSascha Wildner /* Keep track of bit position for the next field */
5960d02842fSSascha Wildner
597820c5b08SSascha Wildner Position = (UINT64) Info->FieldBitPosition +
598820c5b08SSascha Wildner (UINT64) Arg->Common.Value.Size;
5990d02842fSSascha Wildner
6000d02842fSSascha Wildner if (Position > ACPI_UINT32_MAX)
6010d02842fSSascha Wildner {
6020d02842fSSascha Wildner ACPI_ERROR ((AE_INFO,
6030d02842fSSascha Wildner "Field [%4.4s] bit offset too large (> 0xFFFFFFFF)",
6040d02842fSSascha Wildner ACPI_CAST_PTR (char, &Info->FieldNode->Name)));
6050d02842fSSascha Wildner return_ACPI_STATUS (AE_SUPPORT);
6060d02842fSSascha Wildner }
6070d02842fSSascha Wildner
6080d02842fSSascha Wildner Info->FieldBitPosition += Info->FieldBitLength;
6092e2672b8SSascha Wildner Info->PinNumberIndex++; /* Index relative to previous Connection() */
6100d02842fSSascha Wildner break;
6110d02842fSSascha Wildner
6120d02842fSSascha Wildner default:
6130d02842fSSascha Wildner
6140d02842fSSascha Wildner ACPI_ERROR ((AE_INFO,
615820c5b08SSascha Wildner "Invalid opcode in field list: 0x%X",
616820c5b08SSascha Wildner Arg->Common.AmlOpcode));
6170d02842fSSascha Wildner return_ACPI_STATUS (AE_AML_BAD_OPCODE);
6180d02842fSSascha Wildner }
6190d02842fSSascha Wildner
6200d02842fSSascha Wildner Arg = Arg->Common.Next;
6210d02842fSSascha Wildner }
6220d02842fSSascha Wildner
6230d02842fSSascha Wildner return_ACPI_STATUS (AE_OK);
6240d02842fSSascha Wildner }
6250d02842fSSascha Wildner
6260d02842fSSascha Wildner
6270d02842fSSascha Wildner /*******************************************************************************
6280d02842fSSascha Wildner *
6290d02842fSSascha Wildner * FUNCTION: AcpiDsCreateField
6300d02842fSSascha Wildner *
6310d02842fSSascha Wildner * PARAMETERS: Op - Op containing the Field definition and args
6320d02842fSSascha Wildner * RegionNode - Object for the containing Operation Region
6330d02842fSSascha Wildner * ` WalkState - Current method state
6340d02842fSSascha Wildner *
6350d02842fSSascha Wildner * RETURN: Status
6360d02842fSSascha Wildner *
6370d02842fSSascha Wildner * DESCRIPTION: Create a new field in the specified operation region
6380d02842fSSascha Wildner *
6390d02842fSSascha Wildner ******************************************************************************/
6400d02842fSSascha Wildner
6410d02842fSSascha Wildner ACPI_STATUS
AcpiDsCreateField(ACPI_PARSE_OBJECT * Op,ACPI_NAMESPACE_NODE * RegionNode,ACPI_WALK_STATE * WalkState)6420d02842fSSascha Wildner AcpiDsCreateField (
6430d02842fSSascha Wildner ACPI_PARSE_OBJECT *Op,
6440d02842fSSascha Wildner ACPI_NAMESPACE_NODE *RegionNode,
6450d02842fSSascha Wildner ACPI_WALK_STATE *WalkState)
6460d02842fSSascha Wildner {
6470d02842fSSascha Wildner ACPI_STATUS Status;
6480d02842fSSascha Wildner ACPI_PARSE_OBJECT *Arg;
6490d02842fSSascha Wildner ACPI_CREATE_FIELD_INFO Info;
6500d02842fSSascha Wildner
6510d02842fSSascha Wildner
6520d02842fSSascha Wildner ACPI_FUNCTION_TRACE_PTR (DsCreateField, Op);
6530d02842fSSascha Wildner
6540d02842fSSascha Wildner
6550d02842fSSascha Wildner /* First arg is the name of the parent OpRegion (must already exist) */
6560d02842fSSascha Wildner
6570d02842fSSascha Wildner Arg = Op->Common.Value.Arg;
6580d02842fSSascha Wildner
6590d02842fSSascha Wildner if (!RegionNode)
6600d02842fSSascha Wildner {
6610d02842fSSascha Wildner Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.Name,
6620d02842fSSascha Wildner ACPI_TYPE_REGION, ACPI_IMODE_EXECUTE,
6630d02842fSSascha Wildner ACPI_NS_SEARCH_PARENT, WalkState, &RegionNode);
6640d02842fSSascha Wildner #ifdef ACPI_ASL_COMPILER
6650d02842fSSascha Wildner Status = AcpiDsCreateExternalRegion (Status, Arg,
6660d02842fSSascha Wildner Arg->Common.Value.Name, WalkState, &RegionNode);
6670d02842fSSascha Wildner #endif
6680d02842fSSascha Wildner if (ACPI_FAILURE (Status))
6690d02842fSSascha Wildner {
6707bcb6cafSSascha Wildner ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo,
6717bcb6cafSSascha Wildner Arg->Common.Value.Name, Status);
6720d02842fSSascha Wildner return_ACPI_STATUS (Status);
6730d02842fSSascha Wildner }
6740d02842fSSascha Wildner }
6750d02842fSSascha Wildner
67625ca8c79SSascha Wildner memset (&Info, 0, sizeof (ACPI_CREATE_FIELD_INFO));
6770d02842fSSascha Wildner
6780d02842fSSascha Wildner /* Second arg is the field flags */
6790d02842fSSascha Wildner
6800d02842fSSascha Wildner Arg = Arg->Common.Next;
6810d02842fSSascha Wildner Info.FieldFlags = (UINT8) Arg->Common.Value.Integer;
6820d02842fSSascha Wildner Info.Attribute = 0;
6830d02842fSSascha Wildner
6840d02842fSSascha Wildner /* Each remaining arg is a Named Field */
6850d02842fSSascha Wildner
6860d02842fSSascha Wildner Info.FieldType = ACPI_TYPE_LOCAL_REGION_FIELD;
6870d02842fSSascha Wildner Info.RegionNode = RegionNode;
6880d02842fSSascha Wildner
6890d02842fSSascha Wildner Status = AcpiDsGetFieldNames (&Info, WalkState, Arg->Common.Next);
6900f79e681SSascha Wildner if (ACPI_FAILURE (Status))
6910f79e681SSascha Wildner {
6920f79e681SSascha Wildner return_ACPI_STATUS (Status);
6930f79e681SSascha Wildner }
6940f79e681SSascha Wildner
6950f79e681SSascha Wildner if (Info.RegionNode->Object->Region.SpaceId == ACPI_ADR_SPACE_PLATFORM_COMM)
6960f79e681SSascha Wildner {
6970f79e681SSascha Wildner RegionNode->Object->Field.InternalPccBuffer =
6980f79e681SSascha Wildner ACPI_ALLOCATE_ZEROED(Info.RegionNode->Object->Region.Length);
6990f79e681SSascha Wildner if (!RegionNode->Object->Field.InternalPccBuffer)
70000ffa116SSascha Wildner {
70100ffa116SSascha Wildner return_ACPI_STATUS (AE_NO_MEMORY);
70200ffa116SSascha Wildner }
7030f79e681SSascha Wildner }
7040f79e681SSascha Wildner
7050d02842fSSascha Wildner return_ACPI_STATUS (Status);
7060d02842fSSascha Wildner }
7070d02842fSSascha Wildner
7080d02842fSSascha Wildner
7090d02842fSSascha Wildner /*******************************************************************************
7100d02842fSSascha Wildner *
7110d02842fSSascha Wildner * FUNCTION: AcpiDsInitFieldObjects
7120d02842fSSascha Wildner *
7130d02842fSSascha Wildner * PARAMETERS: Op - Op containing the Field definition and args
7140d02842fSSascha Wildner * ` WalkState - Current method state
7150d02842fSSascha Wildner *
7160d02842fSSascha Wildner * RETURN: Status
7170d02842fSSascha Wildner *
7180d02842fSSascha Wildner * DESCRIPTION: For each "Field Unit" name in the argument list that is
7190d02842fSSascha Wildner * part of the field declaration, enter the name into the
7200d02842fSSascha Wildner * namespace.
7210d02842fSSascha Wildner *
7220d02842fSSascha Wildner ******************************************************************************/
7230d02842fSSascha Wildner
7240d02842fSSascha Wildner ACPI_STATUS
AcpiDsInitFieldObjects(ACPI_PARSE_OBJECT * Op,ACPI_WALK_STATE * WalkState)7250d02842fSSascha Wildner AcpiDsInitFieldObjects (
7260d02842fSSascha Wildner ACPI_PARSE_OBJECT *Op,
7270d02842fSSascha Wildner ACPI_WALK_STATE *WalkState)
7280d02842fSSascha Wildner {
7290d02842fSSascha Wildner ACPI_STATUS Status;
7300d02842fSSascha Wildner ACPI_PARSE_OBJECT *Arg = NULL;
7310d02842fSSascha Wildner ACPI_NAMESPACE_NODE *Node;
7320d02842fSSascha Wildner UINT8 Type = 0;
7330d02842fSSascha Wildner UINT32 Flags;
7340d02842fSSascha Wildner
7350d02842fSSascha Wildner
7360d02842fSSascha Wildner ACPI_FUNCTION_TRACE_PTR (DsInitFieldObjects, Op);
7370d02842fSSascha Wildner
7380d02842fSSascha Wildner
7390d02842fSSascha Wildner /* Execute flag should always be set when this function is entered */
7400d02842fSSascha Wildner
7410d02842fSSascha Wildner if (!(WalkState->ParseFlags & ACPI_PARSE_EXECUTE))
7420d02842fSSascha Wildner {
7430d02842fSSascha Wildner if (WalkState->ParseFlags & ACPI_PARSE_DEFERRED_OP)
7440d02842fSSascha Wildner {
7450d02842fSSascha Wildner /* BankField Op is deferred, just return OK */
7460d02842fSSascha Wildner
7470d02842fSSascha Wildner return_ACPI_STATUS (AE_OK);
7480d02842fSSascha Wildner }
7490d02842fSSascha Wildner
7503c639e0cSSascha Wildner ACPI_ERROR ((AE_INFO,
7513c639e0cSSascha Wildner "Parse deferred mode is not set"));
7520d02842fSSascha Wildner return_ACPI_STATUS (AE_AML_INTERNAL);
7530d02842fSSascha Wildner }
7540d02842fSSascha Wildner
7550d02842fSSascha Wildner /*
7560d02842fSSascha Wildner * Get the FieldList argument for this opcode. This is the start of the
7570d02842fSSascha Wildner * list of field elements.
7580d02842fSSascha Wildner */
7590d02842fSSascha Wildner switch (WalkState->Opcode)
7600d02842fSSascha Wildner {
7610d02842fSSascha Wildner case AML_FIELD_OP:
7620d02842fSSascha Wildner
7630d02842fSSascha Wildner Arg = AcpiPsGetArg (Op, 2);
7640d02842fSSascha Wildner Type = ACPI_TYPE_LOCAL_REGION_FIELD;
7650d02842fSSascha Wildner break;
7660d02842fSSascha Wildner
7670d02842fSSascha Wildner case AML_BANK_FIELD_OP:
7680d02842fSSascha Wildner
7690d02842fSSascha Wildner Arg = AcpiPsGetArg (Op, 4);
7700d02842fSSascha Wildner Type = ACPI_TYPE_LOCAL_BANK_FIELD;
7710d02842fSSascha Wildner break;
7720d02842fSSascha Wildner
7730d02842fSSascha Wildner case AML_INDEX_FIELD_OP:
7740d02842fSSascha Wildner
7750d02842fSSascha Wildner Arg = AcpiPsGetArg (Op, 3);
7760d02842fSSascha Wildner Type = ACPI_TYPE_LOCAL_INDEX_FIELD;
7770d02842fSSascha Wildner break;
7780d02842fSSascha Wildner
7790d02842fSSascha Wildner default:
7800d02842fSSascha Wildner
7810d02842fSSascha Wildner return_ACPI_STATUS (AE_BAD_PARAMETER);
7820d02842fSSascha Wildner }
7830d02842fSSascha Wildner
7840d02842fSSascha Wildner /* Creating new namespace node(s), should not already exist */
7850d02842fSSascha Wildner
7860d02842fSSascha Wildner Flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE |
7870d02842fSSascha Wildner ACPI_NS_ERROR_IF_FOUND;
7880d02842fSSascha Wildner
7890d02842fSSascha Wildner /*
7900d02842fSSascha Wildner * Mark node(s) temporary if we are executing a normal control
7910d02842fSSascha Wildner * method. (Don't mark if this is a module-level code method)
7920d02842fSSascha Wildner */
7930d02842fSSascha Wildner if (WalkState->MethodNode &&
7940d02842fSSascha Wildner !(WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL))
7950d02842fSSascha Wildner {
7960d02842fSSascha Wildner Flags |= ACPI_NS_TEMPORARY;
7970d02842fSSascha Wildner }
7980d02842fSSascha Wildner
7992afeb59bSSascha Wildner #ifdef ACPI_EXEC_APP
8002afeb59bSSascha Wildner Flags |= ACPI_NS_OVERRIDE_IF_FOUND;
8012afeb59bSSascha Wildner #endif
8020d02842fSSascha Wildner /*
8030d02842fSSascha Wildner * Walk the list of entries in the FieldList
8040d02842fSSascha Wildner * Note: FieldList can be of zero length. In this case, Arg will be NULL.
8050d02842fSSascha Wildner */
8060d02842fSSascha Wildner while (Arg)
8070d02842fSSascha Wildner {
8080d02842fSSascha Wildner /*
8090d02842fSSascha Wildner * Ignore OFFSET/ACCESSAS/CONNECTION terms here; we are only interested
8100d02842fSSascha Wildner * in the field names in order to enter them into the namespace.
8110d02842fSSascha Wildner */
8120d02842fSSascha Wildner if (Arg->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP)
8130d02842fSSascha Wildner {
8140d02842fSSascha Wildner Status = AcpiNsLookup (WalkState->ScopeInfo,
8150d02842fSSascha Wildner (char *) &Arg->Named.Name, Type, ACPI_IMODE_LOAD_PASS1,
8160d02842fSSascha Wildner Flags, WalkState, &Node);
8170d02842fSSascha Wildner if (ACPI_FAILURE (Status))
8180d02842fSSascha Wildner {
8197bcb6cafSSascha Wildner ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo,
8207bcb6cafSSascha Wildner (char *) &Arg->Named.Name, Status);
8210d02842fSSascha Wildner if (Status != AE_ALREADY_EXISTS)
8220d02842fSSascha Wildner {
8230d02842fSSascha Wildner return_ACPI_STATUS (Status);
8240d02842fSSascha Wildner }
8250d02842fSSascha Wildner
8260d02842fSSascha Wildner /* Name already exists, just ignore this error */
8270d02842fSSascha Wildner }
8280d02842fSSascha Wildner
8290d02842fSSascha Wildner Arg->Common.Node = Node;
8300d02842fSSascha Wildner }
8310d02842fSSascha Wildner
8320d02842fSSascha Wildner /* Get the next field element in the list */
8330d02842fSSascha Wildner
8340d02842fSSascha Wildner Arg = Arg->Common.Next;
8350d02842fSSascha Wildner }
8360d02842fSSascha Wildner
8370d02842fSSascha Wildner return_ACPI_STATUS (AE_OK);
8380d02842fSSascha Wildner }
8390d02842fSSascha Wildner
8400d02842fSSascha Wildner
8410d02842fSSascha Wildner /*******************************************************************************
8420d02842fSSascha Wildner *
8430d02842fSSascha Wildner * FUNCTION: AcpiDsCreateBankField
8440d02842fSSascha Wildner *
8450d02842fSSascha Wildner * PARAMETERS: Op - Op containing the Field definition and args
8460d02842fSSascha Wildner * RegionNode - Object for the containing Operation Region
8470d02842fSSascha Wildner * WalkState - Current method state
8480d02842fSSascha Wildner *
8490d02842fSSascha Wildner * RETURN: Status
8500d02842fSSascha Wildner *
8510d02842fSSascha Wildner * DESCRIPTION: Create a new bank field in the specified operation region
8520d02842fSSascha Wildner *
8530d02842fSSascha Wildner ******************************************************************************/
8540d02842fSSascha Wildner
8550d02842fSSascha Wildner ACPI_STATUS
AcpiDsCreateBankField(ACPI_PARSE_OBJECT * Op,ACPI_NAMESPACE_NODE * RegionNode,ACPI_WALK_STATE * WalkState)8560d02842fSSascha Wildner AcpiDsCreateBankField (
8570d02842fSSascha Wildner ACPI_PARSE_OBJECT *Op,
8580d02842fSSascha Wildner ACPI_NAMESPACE_NODE *RegionNode,
8590d02842fSSascha Wildner ACPI_WALK_STATE *WalkState)
8600d02842fSSascha Wildner {
8610d02842fSSascha Wildner ACPI_STATUS Status;
8620d02842fSSascha Wildner ACPI_PARSE_OBJECT *Arg;
8630d02842fSSascha Wildner ACPI_CREATE_FIELD_INFO Info;
8640d02842fSSascha Wildner
8650d02842fSSascha Wildner
8660d02842fSSascha Wildner ACPI_FUNCTION_TRACE_PTR (DsCreateBankField, Op);
8670d02842fSSascha Wildner
8680d02842fSSascha Wildner
8690d02842fSSascha Wildner /* First arg is the name of the parent OpRegion (must already exist) */
8700d02842fSSascha Wildner
8710d02842fSSascha Wildner Arg = Op->Common.Value.Arg;
8720d02842fSSascha Wildner if (!RegionNode)
8730d02842fSSascha Wildner {
8740d02842fSSascha Wildner Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.Name,
8750d02842fSSascha Wildner ACPI_TYPE_REGION, ACPI_IMODE_EXECUTE,
8760d02842fSSascha Wildner ACPI_NS_SEARCH_PARENT, WalkState, &RegionNode);
8770d02842fSSascha Wildner #ifdef ACPI_ASL_COMPILER
8780d02842fSSascha Wildner Status = AcpiDsCreateExternalRegion (Status, Arg,
8790d02842fSSascha Wildner Arg->Common.Value.Name, WalkState, &RegionNode);
8800d02842fSSascha Wildner #endif
8810d02842fSSascha Wildner if (ACPI_FAILURE (Status))
8820d02842fSSascha Wildner {
8837bcb6cafSSascha Wildner ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo,
8847bcb6cafSSascha Wildner Arg->Common.Value.Name, Status);
8850d02842fSSascha Wildner return_ACPI_STATUS (Status);
8860d02842fSSascha Wildner }
8870d02842fSSascha Wildner }
8880d02842fSSascha Wildner
8890d02842fSSascha Wildner /* Second arg is the Bank Register (Field) (must already exist) */
8900d02842fSSascha Wildner
8910d02842fSSascha Wildner Arg = Arg->Common.Next;
8920d02842fSSascha Wildner Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.String,
8930d02842fSSascha Wildner ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
8940d02842fSSascha Wildner ACPI_NS_SEARCH_PARENT, WalkState, &Info.RegisterNode);
8950d02842fSSascha Wildner if (ACPI_FAILURE (Status))
8960d02842fSSascha Wildner {
8977bcb6cafSSascha Wildner ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo,
8987bcb6cafSSascha Wildner Arg->Common.Value.String, Status);
8990d02842fSSascha Wildner return_ACPI_STATUS (Status);
9000d02842fSSascha Wildner }
9010d02842fSSascha Wildner
9020d02842fSSascha Wildner /*
9030d02842fSSascha Wildner * Third arg is the BankValue
9040d02842fSSascha Wildner * This arg is a TermArg, not a constant
9050d02842fSSascha Wildner * It will be evaluated later, by AcpiDsEvalBankFieldOperands
9060d02842fSSascha Wildner */
9070d02842fSSascha Wildner Arg = Arg->Common.Next;
9080d02842fSSascha Wildner
9090d02842fSSascha Wildner /* Fourth arg is the field flags */
9100d02842fSSascha Wildner
9110d02842fSSascha Wildner Arg = Arg->Common.Next;
9120d02842fSSascha Wildner Info.FieldFlags = (UINT8) Arg->Common.Value.Integer;
9130d02842fSSascha Wildner
9140d02842fSSascha Wildner /* Each remaining arg is a Named Field */
9150d02842fSSascha Wildner
9160d02842fSSascha Wildner Info.FieldType = ACPI_TYPE_LOCAL_BANK_FIELD;
9170d02842fSSascha Wildner Info.RegionNode = RegionNode;
9180d02842fSSascha Wildner
9190d02842fSSascha Wildner /*
9200d02842fSSascha Wildner * Use Info.DataRegisterNode to store BankField Op
921820c5b08SSascha Wildner * It's safe because DataRegisterNode will never be used when create
922820c5b08SSascha Wildner * bank field \we store AmlStart and AmlLength in the BankField Op for
923820c5b08SSascha Wildner * late evaluation. Used in AcpiExPrepFieldValue(Info)
9240d02842fSSascha Wildner *
925820c5b08SSascha Wildner * TBD: Or, should we add a field in ACPI_CREATE_FIELD_INFO, like
926820c5b08SSascha Wildner * "void *ParentOp"?
9270d02842fSSascha Wildner */
9280d02842fSSascha Wildner Info.DataRegisterNode = (ACPI_NAMESPACE_NODE*) Op;
9290d02842fSSascha Wildner
9300d02842fSSascha Wildner Status = AcpiDsGetFieldNames (&Info, WalkState, Arg->Common.Next);
9310d02842fSSascha Wildner return_ACPI_STATUS (Status);
9320d02842fSSascha Wildner }
9330d02842fSSascha Wildner
9340d02842fSSascha Wildner
9350d02842fSSascha Wildner /*******************************************************************************
9360d02842fSSascha Wildner *
9370d02842fSSascha Wildner * FUNCTION: AcpiDsCreateIndexField
9380d02842fSSascha Wildner *
9390d02842fSSascha Wildner * PARAMETERS: Op - Op containing the Field definition and args
9400d02842fSSascha Wildner * RegionNode - Object for the containing Operation Region
9410d02842fSSascha Wildner * ` WalkState - Current method state
9420d02842fSSascha Wildner *
9430d02842fSSascha Wildner * RETURN: Status
9440d02842fSSascha Wildner *
9450d02842fSSascha Wildner * DESCRIPTION: Create a new index field in the specified operation region
9460d02842fSSascha Wildner *
9470d02842fSSascha Wildner ******************************************************************************/
9480d02842fSSascha Wildner
9490d02842fSSascha Wildner ACPI_STATUS
AcpiDsCreateIndexField(ACPI_PARSE_OBJECT * Op,ACPI_NAMESPACE_NODE * RegionNode,ACPI_WALK_STATE * WalkState)9500d02842fSSascha Wildner AcpiDsCreateIndexField (
9510d02842fSSascha Wildner ACPI_PARSE_OBJECT *Op,
9520d02842fSSascha Wildner ACPI_NAMESPACE_NODE *RegionNode,
9530d02842fSSascha Wildner ACPI_WALK_STATE *WalkState)
9540d02842fSSascha Wildner {
9550d02842fSSascha Wildner ACPI_STATUS Status;
9560d02842fSSascha Wildner ACPI_PARSE_OBJECT *Arg;
9570d02842fSSascha Wildner ACPI_CREATE_FIELD_INFO Info;
9580d02842fSSascha Wildner
9590d02842fSSascha Wildner
9600d02842fSSascha Wildner ACPI_FUNCTION_TRACE_PTR (DsCreateIndexField, Op);
9610d02842fSSascha Wildner
9620d02842fSSascha Wildner
9630d02842fSSascha Wildner /* First arg is the name of the Index register (must already exist) */
9640d02842fSSascha Wildner
9650d02842fSSascha Wildner Arg = Op->Common.Value.Arg;
9660d02842fSSascha Wildner Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.String,
9670d02842fSSascha Wildner ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
9680d02842fSSascha Wildner ACPI_NS_SEARCH_PARENT, WalkState, &Info.RegisterNode);
9690d02842fSSascha Wildner if (ACPI_FAILURE (Status))
9700d02842fSSascha Wildner {
9717bcb6cafSSascha Wildner ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo,
9727bcb6cafSSascha Wildner Arg->Common.Value.String, Status);
9730d02842fSSascha Wildner return_ACPI_STATUS (Status);
9740d02842fSSascha Wildner }
9750d02842fSSascha Wildner
9760d02842fSSascha Wildner /* Second arg is the data register (must already exist) */
9770d02842fSSascha Wildner
9780d02842fSSascha Wildner Arg = Arg->Common.Next;
9790d02842fSSascha Wildner Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.String,
9800d02842fSSascha Wildner ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
9810d02842fSSascha Wildner ACPI_NS_SEARCH_PARENT, WalkState, &Info.DataRegisterNode);
9820d02842fSSascha Wildner if (ACPI_FAILURE (Status))
9830d02842fSSascha Wildner {
9847bcb6cafSSascha Wildner ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo,
9857bcb6cafSSascha Wildner Arg->Common.Value.String, Status);
9860d02842fSSascha Wildner return_ACPI_STATUS (Status);
9870d02842fSSascha Wildner }
9880d02842fSSascha Wildner
9890d02842fSSascha Wildner /* Next arg is the field flags */
9900d02842fSSascha Wildner
9910d02842fSSascha Wildner Arg = Arg->Common.Next;
9920d02842fSSascha Wildner Info.FieldFlags = (UINT8) Arg->Common.Value.Integer;
9930d02842fSSascha Wildner
9940d02842fSSascha Wildner /* Each remaining arg is a Named Field */
9950d02842fSSascha Wildner
9960d02842fSSascha Wildner Info.FieldType = ACPI_TYPE_LOCAL_INDEX_FIELD;
9970d02842fSSascha Wildner Info.RegionNode = RegionNode;
9980d02842fSSascha Wildner
9990d02842fSSascha Wildner Status = AcpiDsGetFieldNames (&Info, WalkState, Arg->Common.Next);
10000d02842fSSascha Wildner return_ACPI_STATUS (Status);
10010d02842fSSascha Wildner }
1002