10d02842fSSascha Wildner /******************************************************************************
20d02842fSSascha Wildner *
30d02842fSSascha Wildner * Module Name: psxface - Parser external interfaces
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 "acdispat.h"
1560d02842fSSascha Wildner #include "acinterp.h"
1570d02842fSSascha Wildner #include "actables.h"
158267c04fdSSascha Wildner #include "acnamesp.h"
1590d02842fSSascha Wildner
1600d02842fSSascha Wildner
1610d02842fSSascha Wildner #define _COMPONENT ACPI_PARSER
1620d02842fSSascha Wildner ACPI_MODULE_NAME ("psxface")
1630d02842fSSascha Wildner
1640d02842fSSascha Wildner /* Local Prototypes */
1650d02842fSSascha Wildner
1660d02842fSSascha Wildner static void
1670d02842fSSascha Wildner AcpiPsUpdateParameterList (
1680d02842fSSascha Wildner ACPI_EVALUATE_INFO *Info,
1690d02842fSSascha Wildner UINT16 Action);
1700d02842fSSascha Wildner
1710d02842fSSascha Wildner
1720d02842fSSascha Wildner /*******************************************************************************
1730d02842fSSascha Wildner *
1740d02842fSSascha Wildner * FUNCTION: AcpiDebugTrace
1750d02842fSSascha Wildner *
1760d02842fSSascha Wildner * PARAMETERS: MethodName - Valid ACPI name string
1770d02842fSSascha Wildner * DebugLevel - Optional level mask. 0 to use default
1780d02842fSSascha Wildner * DebugLayer - Optional layer mask. 0 to use default
1790d02842fSSascha Wildner * Flags - bit 1: one shot(1) or persistent(0)
1800d02842fSSascha Wildner *
1810d02842fSSascha Wildner * RETURN: Status
1820d02842fSSascha Wildner *
1830d02842fSSascha Wildner * DESCRIPTION: External interface to enable debug tracing during control
1840d02842fSSascha Wildner * method execution
1850d02842fSSascha Wildner *
1860d02842fSSascha Wildner ******************************************************************************/
1870d02842fSSascha Wildner
1880d02842fSSascha Wildner ACPI_STATUS
AcpiDebugTrace(const char * Name,UINT32 DebugLevel,UINT32 DebugLayer,UINT32 Flags)1890d02842fSSascha Wildner AcpiDebugTrace (
190267c04fdSSascha Wildner const char *Name,
1910d02842fSSascha Wildner UINT32 DebugLevel,
1920d02842fSSascha Wildner UINT32 DebugLayer,
1930d02842fSSascha Wildner UINT32 Flags)
1940d02842fSSascha Wildner {
1950d02842fSSascha Wildner ACPI_STATUS Status;
1960d02842fSSascha Wildner
1970d02842fSSascha Wildner
1980d02842fSSascha Wildner Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
1990d02842fSSascha Wildner if (ACPI_FAILURE (Status))
2000d02842fSSascha Wildner {
2010d02842fSSascha Wildner return (Status);
2020d02842fSSascha Wildner }
2030d02842fSSascha Wildner
204267c04fdSSascha Wildner AcpiGbl_TraceMethodName = Name;
2050d02842fSSascha Wildner AcpiGbl_TraceFlags = Flags;
2060d02842fSSascha Wildner AcpiGbl_TraceDbgLevel = DebugLevel;
2070d02842fSSascha Wildner AcpiGbl_TraceDbgLayer = DebugLayer;
208267c04fdSSascha Wildner Status = AE_OK;
2090d02842fSSascha Wildner
2100d02842fSSascha Wildner (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
211267c04fdSSascha Wildner return (Status);
2120d02842fSSascha Wildner }
2130d02842fSSascha Wildner
2140d02842fSSascha Wildner
2150d02842fSSascha Wildner /*******************************************************************************
2160d02842fSSascha Wildner *
2170d02842fSSascha Wildner * FUNCTION: AcpiPsExecuteMethod
2180d02842fSSascha Wildner *
2190d02842fSSascha Wildner * PARAMETERS: Info - Method info block, contains:
2200d02842fSSascha Wildner * Node - Method Node to execute
2210d02842fSSascha Wildner * ObjDesc - Method object
2220d02842fSSascha Wildner * Parameters - List of parameters to pass to the method,
2230d02842fSSascha Wildner * terminated by NULL. Params itself may be
2240d02842fSSascha Wildner * NULL if no parameters are being passed.
2250d02842fSSascha Wildner * ReturnObject - Where to put method's return value (if
2260d02842fSSascha Wildner * any). If NULL, no value is returned.
2270d02842fSSascha Wildner * ParameterType - Type of Parameter list
2280d02842fSSascha Wildner * ReturnObject - Where to put method's return value (if
2290d02842fSSascha Wildner * any). If NULL, no value is returned.
2300d02842fSSascha Wildner * PassNumber - Parse or execute pass
2310d02842fSSascha Wildner *
2320d02842fSSascha Wildner * RETURN: Status
2330d02842fSSascha Wildner *
2340d02842fSSascha Wildner * DESCRIPTION: Execute a control method
2350d02842fSSascha Wildner *
2360d02842fSSascha Wildner ******************************************************************************/
2370d02842fSSascha Wildner
2380d02842fSSascha Wildner ACPI_STATUS
AcpiPsExecuteMethod(ACPI_EVALUATE_INFO * Info)2390d02842fSSascha Wildner AcpiPsExecuteMethod (
2400d02842fSSascha Wildner ACPI_EVALUATE_INFO *Info)
2410d02842fSSascha Wildner {
2420d02842fSSascha Wildner ACPI_STATUS Status;
2430d02842fSSascha Wildner ACPI_PARSE_OBJECT *Op;
2440d02842fSSascha Wildner ACPI_WALK_STATE *WalkState;
2450d02842fSSascha Wildner
2460d02842fSSascha Wildner
2470d02842fSSascha Wildner ACPI_FUNCTION_TRACE (PsExecuteMethod);
2480d02842fSSascha Wildner
2490d02842fSSascha Wildner
2500d02842fSSascha Wildner /* Quick validation of DSDT header */
2510d02842fSSascha Wildner
2520d02842fSSascha Wildner AcpiTbCheckDsdtHeader ();
2530d02842fSSascha Wildner
2540d02842fSSascha Wildner /* Validate the Info and method Node */
2550d02842fSSascha Wildner
2560d02842fSSascha Wildner if (!Info || !Info->Node)
2570d02842fSSascha Wildner {
2580d02842fSSascha Wildner return_ACPI_STATUS (AE_NULL_ENTRY);
2590d02842fSSascha Wildner }
2600d02842fSSascha Wildner
2610d02842fSSascha Wildner /* Init for new method, wait on concurrency semaphore */
2620d02842fSSascha Wildner
2630d02842fSSascha Wildner Status = AcpiDsBeginMethodExecution (Info->Node, Info->ObjDesc, NULL);
2640d02842fSSascha Wildner if (ACPI_FAILURE (Status))
2650d02842fSSascha Wildner {
2660d02842fSSascha Wildner return_ACPI_STATUS (Status);
2670d02842fSSascha Wildner }
2680d02842fSSascha Wildner
2690d02842fSSascha Wildner /*
2700d02842fSSascha Wildner * The caller "owns" the parameters, so give each one an extra reference
2710d02842fSSascha Wildner */
2720d02842fSSascha Wildner AcpiPsUpdateParameterList (Info, REF_INCREMENT);
2730d02842fSSascha Wildner
2740d02842fSSascha Wildner /*
2750d02842fSSascha Wildner * Execute the method. Performs parse simultaneously
2760d02842fSSascha Wildner */
2770d02842fSSascha Wildner ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
2780d02842fSSascha Wildner "**** Begin Method Parse/Execute [%4.4s] **** Node=%p Obj=%p\n",
2790d02842fSSascha Wildner Info->Node->Name.Ascii, Info->Node, Info->ObjDesc));
2800d02842fSSascha Wildner
2810d02842fSSascha Wildner /* Create and init a Root Node */
2820d02842fSSascha Wildner
283267c04fdSSascha Wildner Op = AcpiPsCreateScopeOp (Info->ObjDesc->Method.AmlStart);
2840d02842fSSascha Wildner if (!Op)
2850d02842fSSascha Wildner {
2860d02842fSSascha Wildner Status = AE_NO_MEMORY;
2870d02842fSSascha Wildner goto Cleanup;
2880d02842fSSascha Wildner }
2890d02842fSSascha Wildner
2900d02842fSSascha Wildner /* Create and initialize a new walk state */
2910d02842fSSascha Wildner
2920d02842fSSascha Wildner Info->PassNumber = ACPI_IMODE_EXECUTE;
2930d02842fSSascha Wildner WalkState = AcpiDsCreateWalkState (
2940d02842fSSascha Wildner Info->ObjDesc->Method.OwnerId, NULL, NULL, NULL);
2950d02842fSSascha Wildner if (!WalkState)
2960d02842fSSascha Wildner {
2970d02842fSSascha Wildner Status = AE_NO_MEMORY;
2980d02842fSSascha Wildner goto Cleanup;
2990d02842fSSascha Wildner }
3000d02842fSSascha Wildner
3010d02842fSSascha Wildner Status = AcpiDsInitAmlWalk (WalkState, Op, Info->Node,
3020d02842fSSascha Wildner Info->ObjDesc->Method.AmlStart,
3030d02842fSSascha Wildner Info->ObjDesc->Method.AmlLength, Info, Info->PassNumber);
3040d02842fSSascha Wildner if (ACPI_FAILURE (Status))
3050d02842fSSascha Wildner {
3060d02842fSSascha Wildner AcpiDsDeleteWalkState (WalkState);
3070d02842fSSascha Wildner goto Cleanup;
3080d02842fSSascha Wildner }
3090d02842fSSascha Wildner
310ef944814SSascha Wildner WalkState->MethodPathname = Info->FullPathname;
311ef944814SSascha Wildner WalkState->MethodIsNested = FALSE;
312ef944814SSascha Wildner
3130d02842fSSascha Wildner if (Info->ObjDesc->Method.InfoFlags & ACPI_METHOD_MODULE_LEVEL)
3140d02842fSSascha Wildner {
3150d02842fSSascha Wildner WalkState->ParseFlags |= ACPI_PARSE_MODULE_LEVEL;
3160d02842fSSascha Wildner }
3170d02842fSSascha Wildner
3180d02842fSSascha Wildner /* Invoke an internal method if necessary */
3190d02842fSSascha Wildner
3200d02842fSSascha Wildner if (Info->ObjDesc->Method.InfoFlags & ACPI_METHOD_INTERNAL_ONLY)
3210d02842fSSascha Wildner {
3220d02842fSSascha Wildner Status = Info->ObjDesc->Method.Dispatch.Implementation (WalkState);
3230d02842fSSascha Wildner Info->ReturnObject = WalkState->ReturnDesc;
3240d02842fSSascha Wildner
3250d02842fSSascha Wildner /* Cleanup states */
3260d02842fSSascha Wildner
3270d02842fSSascha Wildner AcpiDsScopeStackClear (WalkState);
3280d02842fSSascha Wildner AcpiPsCleanupScope (&WalkState->ParserState);
3290d02842fSSascha Wildner AcpiDsTerminateControlMethod (WalkState->MethodDesc, WalkState);
3300d02842fSSascha Wildner AcpiDsDeleteWalkState (WalkState);
3310d02842fSSascha Wildner goto Cleanup;
3320d02842fSSascha Wildner }
3330d02842fSSascha Wildner
3340d02842fSSascha Wildner /*
3350d02842fSSascha Wildner * Start method evaluation with an implicit return of zero.
3360d02842fSSascha Wildner * This is done for Windows compatibility.
3370d02842fSSascha Wildner */
3380d02842fSSascha Wildner if (AcpiGbl_EnableInterpreterSlack)
3390d02842fSSascha Wildner {
3400d02842fSSascha Wildner WalkState->ImplicitReturnObj =
3410d02842fSSascha Wildner AcpiUtCreateIntegerObject ((UINT64) 0);
3420d02842fSSascha Wildner if (!WalkState->ImplicitReturnObj)
3430d02842fSSascha Wildner {
3440d02842fSSascha Wildner Status = AE_NO_MEMORY;
3450d02842fSSascha Wildner AcpiDsDeleteWalkState (WalkState);
3460d02842fSSascha Wildner goto Cleanup;
3470d02842fSSascha Wildner }
3480d02842fSSascha Wildner }
3490d02842fSSascha Wildner
3500d02842fSSascha Wildner /* Parse the AML */
3510d02842fSSascha Wildner
3520d02842fSSascha Wildner Status = AcpiPsParseAml (WalkState);
3530d02842fSSascha Wildner
3540d02842fSSascha Wildner /* WalkState was deleted by ParseAml */
3550d02842fSSascha Wildner
3560d02842fSSascha Wildner Cleanup:
3570d02842fSSascha Wildner AcpiPsDeleteParseTree (Op);
3580d02842fSSascha Wildner
3590d02842fSSascha Wildner /* Take away the extra reference that we gave the parameters above */
3600d02842fSSascha Wildner
3610d02842fSSascha Wildner AcpiPsUpdateParameterList (Info, REF_DECREMENT);
3620d02842fSSascha Wildner
3630d02842fSSascha Wildner /* Exit now if error above */
3640d02842fSSascha Wildner
3650d02842fSSascha Wildner if (ACPI_FAILURE (Status))
3660d02842fSSascha Wildner {
3670d02842fSSascha Wildner return_ACPI_STATUS (Status);
3680d02842fSSascha Wildner }
3690d02842fSSascha Wildner
3700d02842fSSascha Wildner /*
3710d02842fSSascha Wildner * If the method has returned an object, signal this to the caller with
3720d02842fSSascha Wildner * a control exception code
3730d02842fSSascha Wildner */
3740d02842fSSascha Wildner if (Info->ReturnObject)
3750d02842fSSascha Wildner {
3760d02842fSSascha Wildner ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "Method returned ObjDesc=%p\n",
3770d02842fSSascha Wildner Info->ReturnObject));
3780d02842fSSascha Wildner ACPI_DUMP_STACK_ENTRY (Info->ReturnObject);
3790d02842fSSascha Wildner
3800d02842fSSascha Wildner Status = AE_CTRL_RETURN_VALUE;
3810d02842fSSascha Wildner }
3820d02842fSSascha Wildner
3830d02842fSSascha Wildner return_ACPI_STATUS (Status);
3840d02842fSSascha Wildner }
3850d02842fSSascha Wildner
3860d02842fSSascha Wildner
3870d02842fSSascha Wildner /*******************************************************************************
3880d02842fSSascha Wildner *
389e5e174adSSascha Wildner * FUNCTION: AcpiPsExecuteTable
390e5e174adSSascha Wildner *
391e5e174adSSascha Wildner * PARAMETERS: Info - Method info block, contains:
392e5e174adSSascha Wildner * Node - Node to where the is entered into the
393e5e174adSSascha Wildner * namespace
394e5e174adSSascha Wildner * ObjDesc - Pseudo method object describing the AML
395e5e174adSSascha Wildner * code of the entire table
396e5e174adSSascha Wildner * PassNumber - Parse or execute pass
397e5e174adSSascha Wildner *
398e5e174adSSascha Wildner * RETURN: Status
399e5e174adSSascha Wildner *
400e5e174adSSascha Wildner * DESCRIPTION: Execute a table
401e5e174adSSascha Wildner *
402e5e174adSSascha Wildner ******************************************************************************/
403e5e174adSSascha Wildner
404e5e174adSSascha Wildner ACPI_STATUS
AcpiPsExecuteTable(ACPI_EVALUATE_INFO * Info)405e5e174adSSascha Wildner AcpiPsExecuteTable (
406e5e174adSSascha Wildner ACPI_EVALUATE_INFO *Info)
407e5e174adSSascha Wildner {
408e5e174adSSascha Wildner ACPI_STATUS Status;
409e5e174adSSascha Wildner ACPI_PARSE_OBJECT *Op = NULL;
410e5e174adSSascha Wildner ACPI_WALK_STATE *WalkState = NULL;
411e5e174adSSascha Wildner
412e5e174adSSascha Wildner
413e5e174adSSascha Wildner ACPI_FUNCTION_TRACE (PsExecuteTable);
414e5e174adSSascha Wildner
415e5e174adSSascha Wildner
416e5e174adSSascha Wildner /* Create and init a Root Node */
417e5e174adSSascha Wildner
418e5e174adSSascha Wildner Op = AcpiPsCreateScopeOp (Info->ObjDesc->Method.AmlStart);
419e5e174adSSascha Wildner if (!Op)
420e5e174adSSascha Wildner {
421e5e174adSSascha Wildner Status = AE_NO_MEMORY;
422e5e174adSSascha Wildner goto Cleanup;
423e5e174adSSascha Wildner }
424e5e174adSSascha Wildner
425e5e174adSSascha Wildner /* Create and initialize a new walk state */
426e5e174adSSascha Wildner
427e5e174adSSascha Wildner WalkState = AcpiDsCreateWalkState (
428e5e174adSSascha Wildner Info->ObjDesc->Method.OwnerId, NULL, NULL, NULL);
429e5e174adSSascha Wildner if (!WalkState)
430e5e174adSSascha Wildner {
431e5e174adSSascha Wildner Status = AE_NO_MEMORY;
432e5e174adSSascha Wildner goto Cleanup;
433e5e174adSSascha Wildner }
434e5e174adSSascha Wildner
435e5e174adSSascha Wildner Status = AcpiDsInitAmlWalk (WalkState, Op, Info->Node,
436e5e174adSSascha Wildner Info->ObjDesc->Method.AmlStart,
437e5e174adSSascha Wildner Info->ObjDesc->Method.AmlLength, Info, Info->PassNumber);
438e5e174adSSascha Wildner if (ACPI_FAILURE (Status))
439e5e174adSSascha Wildner {
440e5e174adSSascha Wildner goto Cleanup;
441e5e174adSSascha Wildner }
442e5e174adSSascha Wildner
443ef944814SSascha Wildner WalkState->MethodPathname = Info->FullPathname;
444ef944814SSascha Wildner WalkState->MethodIsNested = FALSE;
445ef944814SSascha Wildner
446e5e174adSSascha Wildner if (Info->ObjDesc->Method.InfoFlags & ACPI_METHOD_MODULE_LEVEL)
447e5e174adSSascha Wildner {
448e5e174adSSascha Wildner WalkState->ParseFlags |= ACPI_PARSE_MODULE_LEVEL;
449e5e174adSSascha Wildner }
450e5e174adSSascha Wildner
45196f24602SSascha Wildner /* Info->Node is the default location to load the table */
45296f24602SSascha Wildner
45396f24602SSascha Wildner if (Info->Node && Info->Node != AcpiGbl_RootNode)
45496f24602SSascha Wildner {
45596f24602SSascha Wildner Status = AcpiDsScopeStackPush (
45696f24602SSascha Wildner Info->Node, ACPI_TYPE_METHOD, WalkState);
45796f24602SSascha Wildner if (ACPI_FAILURE (Status))
45896f24602SSascha Wildner {
45996f24602SSascha Wildner goto Cleanup;
46096f24602SSascha Wildner }
46196f24602SSascha Wildner }
46296f24602SSascha Wildner
463e5e174adSSascha Wildner /*
464e5e174adSSascha Wildner * Parse the AML, WalkState will be deleted by ParseAml
465e5e174adSSascha Wildner */
466e5e174adSSascha Wildner AcpiExEnterInterpreter ();
467e5e174adSSascha Wildner Status = AcpiPsParseAml (WalkState);
468e5e174adSSascha Wildner AcpiExExitInterpreter ();
469e5e174adSSascha Wildner WalkState = NULL;
470e5e174adSSascha Wildner
471e5e174adSSascha Wildner Cleanup:
472e5e174adSSascha Wildner if (WalkState)
473e5e174adSSascha Wildner {
474e5e174adSSascha Wildner AcpiDsDeleteWalkState (WalkState);
475e5e174adSSascha Wildner }
476e5e174adSSascha Wildner if (Op)
477e5e174adSSascha Wildner {
478e5e174adSSascha Wildner AcpiPsDeleteParseTree (Op);
479e5e174adSSascha Wildner }
480e5e174adSSascha Wildner return_ACPI_STATUS (Status);
481e5e174adSSascha Wildner }
482e5e174adSSascha Wildner
483e5e174adSSascha Wildner
484e5e174adSSascha Wildner /*******************************************************************************
485e5e174adSSascha Wildner *
4860d02842fSSascha Wildner * FUNCTION: AcpiPsUpdateParameterList
4870d02842fSSascha Wildner *
4880d02842fSSascha Wildner * PARAMETERS: Info - See ACPI_EVALUATE_INFO
4890d02842fSSascha Wildner * (Used: ParameterType and Parameters)
4900d02842fSSascha Wildner * Action - Add or Remove reference
4910d02842fSSascha Wildner *
4920d02842fSSascha Wildner * RETURN: Status
4930d02842fSSascha Wildner *
4940d02842fSSascha Wildner * DESCRIPTION: Update reference count on all method parameter objects
4950d02842fSSascha Wildner *
4960d02842fSSascha Wildner ******************************************************************************/
4970d02842fSSascha Wildner
4980d02842fSSascha Wildner static void
AcpiPsUpdateParameterList(ACPI_EVALUATE_INFO * Info,UINT16 Action)4990d02842fSSascha Wildner AcpiPsUpdateParameterList (
5000d02842fSSascha Wildner ACPI_EVALUATE_INFO *Info,
5010d02842fSSascha Wildner UINT16 Action)
5020d02842fSSascha Wildner {
5030d02842fSSascha Wildner UINT32 i;
5040d02842fSSascha Wildner
5050d02842fSSascha Wildner
5060d02842fSSascha Wildner if (Info->Parameters)
5070d02842fSSascha Wildner {
5080d02842fSSascha Wildner /* Update reference count for each parameter */
5090d02842fSSascha Wildner
5100d02842fSSascha Wildner for (i = 0; Info->Parameters[i]; i++)
5110d02842fSSascha Wildner {
5120d02842fSSascha Wildner /* Ignore errors, just do them all */
5130d02842fSSascha Wildner
514820c5b08SSascha Wildner (void) AcpiUtUpdateObjectReference (
515820c5b08SSascha Wildner Info->Parameters[i], Action);
5160d02842fSSascha Wildner }
5170d02842fSSascha Wildner }
5180d02842fSSascha Wildner }
519