xref: /onnv-gate/usr/src/uts/intel/io/acpica/dispatcher/dsobject.c (revision 11225:eb6056029d84)
17851SDana.Myers@Sun.COM /******************************************************************************
27851SDana.Myers@Sun.COM  *
37851SDana.Myers@Sun.COM  * Module Name: dsobject - Dispatcher object management routines
47851SDana.Myers@Sun.COM  *
57851SDana.Myers@Sun.COM  *****************************************************************************/
67851SDana.Myers@Sun.COM 
77851SDana.Myers@Sun.COM /******************************************************************************
87851SDana.Myers@Sun.COM  *
97851SDana.Myers@Sun.COM  * 1. Copyright Notice
107851SDana.Myers@Sun.COM  *
119980SDana.Myers@Sun.COM  * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
127851SDana.Myers@Sun.COM  * All rights reserved.
137851SDana.Myers@Sun.COM  *
147851SDana.Myers@Sun.COM  * 2. License
157851SDana.Myers@Sun.COM  *
167851SDana.Myers@Sun.COM  * 2.1. This is your license from Intel Corp. under its intellectual property
177851SDana.Myers@Sun.COM  * rights.  You may have additional license terms from the party that provided
187851SDana.Myers@Sun.COM  * you this software, covering your right to use that party's intellectual
197851SDana.Myers@Sun.COM  * property rights.
207851SDana.Myers@Sun.COM  *
217851SDana.Myers@Sun.COM  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
227851SDana.Myers@Sun.COM  * copy of the source code appearing in this file ("Covered Code") an
237851SDana.Myers@Sun.COM  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
247851SDana.Myers@Sun.COM  * base code distributed originally by Intel ("Original Intel Code") to copy,
257851SDana.Myers@Sun.COM  * make derivatives, distribute, use and display any portion of the Covered
267851SDana.Myers@Sun.COM  * Code in any form, with the right to sublicense such rights; and
277851SDana.Myers@Sun.COM  *
287851SDana.Myers@Sun.COM  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
297851SDana.Myers@Sun.COM  * license (with the right to sublicense), under only those claims of Intel
307851SDana.Myers@Sun.COM  * patents that are infringed by the Original Intel Code, to make, use, sell,
317851SDana.Myers@Sun.COM  * offer to sell, and import the Covered Code and derivative works thereof
327851SDana.Myers@Sun.COM  * solely to the minimum extent necessary to exercise the above copyright
337851SDana.Myers@Sun.COM  * license, and in no event shall the patent license extend to any additions
347851SDana.Myers@Sun.COM  * to or modifications of the Original Intel Code.  No other license or right
357851SDana.Myers@Sun.COM  * is granted directly or by implication, estoppel or otherwise;
367851SDana.Myers@Sun.COM  *
377851SDana.Myers@Sun.COM  * The above copyright and patent license is granted only if the following
387851SDana.Myers@Sun.COM  * conditions are met:
397851SDana.Myers@Sun.COM  *
407851SDana.Myers@Sun.COM  * 3. Conditions
417851SDana.Myers@Sun.COM  *
427851SDana.Myers@Sun.COM  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
437851SDana.Myers@Sun.COM  * Redistribution of source code of any substantial portion of the Covered
447851SDana.Myers@Sun.COM  * Code or modification with rights to further distribute source must include
457851SDana.Myers@Sun.COM  * the above Copyright Notice, the above License, this list of Conditions,
467851SDana.Myers@Sun.COM  * and the following Disclaimer and Export Compliance provision.  In addition,
477851SDana.Myers@Sun.COM  * Licensee must cause all Covered Code to which Licensee contributes to
487851SDana.Myers@Sun.COM  * contain a file documenting the changes Licensee made to create that Covered
497851SDana.Myers@Sun.COM  * Code and the date of any change.  Licensee must include in that file the
507851SDana.Myers@Sun.COM  * documentation of any changes made by any predecessor Licensee.  Licensee
517851SDana.Myers@Sun.COM  * must include a prominent statement that the modification is derived,
527851SDana.Myers@Sun.COM  * directly or indirectly, from Original Intel Code.
537851SDana.Myers@Sun.COM  *
547851SDana.Myers@Sun.COM  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
557851SDana.Myers@Sun.COM  * Redistribution of source code of any substantial portion of the Covered
567851SDana.Myers@Sun.COM  * Code or modification without rights to further distribute source must
577851SDana.Myers@Sun.COM  * include the following Disclaimer and Export Compliance provision in the
587851SDana.Myers@Sun.COM  * documentation and/or other materials provided with distribution.  In
597851SDana.Myers@Sun.COM  * addition, Licensee may not authorize further sublicense of source of any
607851SDana.Myers@Sun.COM  * portion of the Covered Code, and must include terms to the effect that the
617851SDana.Myers@Sun.COM  * license from Licensee to its licensee is limited to the intellectual
627851SDana.Myers@Sun.COM  * property embodied in the software Licensee provides to its licensee, and
637851SDana.Myers@Sun.COM  * not to intellectual property embodied in modifications its licensee may
647851SDana.Myers@Sun.COM  * make.
657851SDana.Myers@Sun.COM  *
667851SDana.Myers@Sun.COM  * 3.3. Redistribution of Executable. Redistribution in executable form of any
677851SDana.Myers@Sun.COM  * substantial portion of the Covered Code or modification must reproduce the
687851SDana.Myers@Sun.COM  * above Copyright Notice, and the following Disclaimer and Export Compliance
697851SDana.Myers@Sun.COM  * provision in the documentation and/or other materials provided with the
707851SDana.Myers@Sun.COM  * distribution.
717851SDana.Myers@Sun.COM  *
727851SDana.Myers@Sun.COM  * 3.4. Intel retains all right, title, and interest in and to the Original
737851SDana.Myers@Sun.COM  * Intel Code.
747851SDana.Myers@Sun.COM  *
757851SDana.Myers@Sun.COM  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
767851SDana.Myers@Sun.COM  * Intel shall be used in advertising or otherwise to promote the sale, use or
777851SDana.Myers@Sun.COM  * other dealings in products derived from or relating to the Covered Code
787851SDana.Myers@Sun.COM  * without prior written authorization from Intel.
797851SDana.Myers@Sun.COM  *
807851SDana.Myers@Sun.COM  * 4. Disclaimer and Export Compliance
817851SDana.Myers@Sun.COM  *
827851SDana.Myers@Sun.COM  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
837851SDana.Myers@Sun.COM  * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
847851SDana.Myers@Sun.COM  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
857851SDana.Myers@Sun.COM  * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
867851SDana.Myers@Sun.COM  * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
877851SDana.Myers@Sun.COM  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
887851SDana.Myers@Sun.COM  * PARTICULAR PURPOSE.
897851SDana.Myers@Sun.COM  *
907851SDana.Myers@Sun.COM  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
917851SDana.Myers@Sun.COM  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
927851SDana.Myers@Sun.COM  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
937851SDana.Myers@Sun.COM  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
947851SDana.Myers@Sun.COM  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
957851SDana.Myers@Sun.COM  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
967851SDana.Myers@Sun.COM  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
977851SDana.Myers@Sun.COM  * LIMITED REMEDY.
987851SDana.Myers@Sun.COM  *
997851SDana.Myers@Sun.COM  * 4.3. Licensee shall not export, either directly or indirectly, any of this
1007851SDana.Myers@Sun.COM  * software or system incorporating such software without first obtaining any
1017851SDana.Myers@Sun.COM  * required license or other approval from the U. S. Department of Commerce or
1027851SDana.Myers@Sun.COM  * any other agency or department of the United States Government.  In the
1037851SDana.Myers@Sun.COM  * event Licensee exports any such software from the United States or
1047851SDana.Myers@Sun.COM  * re-exports any such software from a foreign destination, Licensee shall
1057851SDana.Myers@Sun.COM  * ensure that the distribution and export/re-export of the software is in
1067851SDana.Myers@Sun.COM  * compliance with all laws, regulations, orders, or other restrictions of the
1077851SDana.Myers@Sun.COM  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
1087851SDana.Myers@Sun.COM  * any of its subsidiaries will export/re-export any technical data, process,
1097851SDana.Myers@Sun.COM  * software, or service, directly or indirectly, to any country for which the
1107851SDana.Myers@Sun.COM  * United States government or any agency thereof requires an export license,
1117851SDana.Myers@Sun.COM  * other governmental approval, or letter of assurance, without first obtaining
1127851SDana.Myers@Sun.COM  * such license, approval or letter.
1137851SDana.Myers@Sun.COM  *
1147851SDana.Myers@Sun.COM  *****************************************************************************/
1157851SDana.Myers@Sun.COM 
1167851SDana.Myers@Sun.COM #define __DSOBJECT_C__
1177851SDana.Myers@Sun.COM 
1187851SDana.Myers@Sun.COM #include "acpi.h"
1199980SDana.Myers@Sun.COM #include "accommon.h"
1207851SDana.Myers@Sun.COM #include "acparser.h"
1217851SDana.Myers@Sun.COM #include "amlcode.h"
1227851SDana.Myers@Sun.COM #include "acdispat.h"
1237851SDana.Myers@Sun.COM #include "acnamesp.h"
1247851SDana.Myers@Sun.COM #include "acinterp.h"
1257851SDana.Myers@Sun.COM 
1267851SDana.Myers@Sun.COM #define _COMPONENT          ACPI_DISPATCHER
1277851SDana.Myers@Sun.COM         ACPI_MODULE_NAME    ("dsobject")
1287851SDana.Myers@Sun.COM 
1297851SDana.Myers@Sun.COM /* Local prototypes */
1307851SDana.Myers@Sun.COM 
1317851SDana.Myers@Sun.COM static ACPI_STATUS
1327851SDana.Myers@Sun.COM AcpiDsBuildInternalObject (
1337851SDana.Myers@Sun.COM     ACPI_WALK_STATE         *WalkState,
1347851SDana.Myers@Sun.COM     ACPI_PARSE_OBJECT       *Op,
1357851SDana.Myers@Sun.COM     ACPI_OPERAND_OBJECT     **ObjDescPtr);
1367851SDana.Myers@Sun.COM 
1377851SDana.Myers@Sun.COM 
1387851SDana.Myers@Sun.COM #ifndef ACPI_NO_METHOD_EXECUTION
1397851SDana.Myers@Sun.COM /*******************************************************************************
1407851SDana.Myers@Sun.COM  *
1417851SDana.Myers@Sun.COM  * FUNCTION:    AcpiDsBuildInternalObject
1427851SDana.Myers@Sun.COM  *
1437851SDana.Myers@Sun.COM  * PARAMETERS:  WalkState       - Current walk state
1447851SDana.Myers@Sun.COM  *              Op              - Parser object to be translated
1457851SDana.Myers@Sun.COM  *              ObjDescPtr      - Where the ACPI internal object is returned
1467851SDana.Myers@Sun.COM  *
1477851SDana.Myers@Sun.COM  * RETURN:      Status
1487851SDana.Myers@Sun.COM  *
1497851SDana.Myers@Sun.COM  * DESCRIPTION: Translate a parser Op object to the equivalent namespace object
1507851SDana.Myers@Sun.COM  *              Simple objects are any objects other than a package object!
1517851SDana.Myers@Sun.COM  *
1527851SDana.Myers@Sun.COM  ******************************************************************************/
1537851SDana.Myers@Sun.COM 
1547851SDana.Myers@Sun.COM static ACPI_STATUS
AcpiDsBuildInternalObject(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op,ACPI_OPERAND_OBJECT ** ObjDescPtr)1557851SDana.Myers@Sun.COM AcpiDsBuildInternalObject (
1567851SDana.Myers@Sun.COM     ACPI_WALK_STATE         *WalkState,
1577851SDana.Myers@Sun.COM     ACPI_PARSE_OBJECT       *Op,
1587851SDana.Myers@Sun.COM     ACPI_OPERAND_OBJECT     **ObjDescPtr)
1597851SDana.Myers@Sun.COM {
1607851SDana.Myers@Sun.COM     ACPI_OPERAND_OBJECT     *ObjDesc;
1617851SDana.Myers@Sun.COM     ACPI_STATUS             Status;
1627851SDana.Myers@Sun.COM 
1637851SDana.Myers@Sun.COM 
1647851SDana.Myers@Sun.COM     ACPI_FUNCTION_TRACE (DsBuildInternalObject);
1657851SDana.Myers@Sun.COM 
1667851SDana.Myers@Sun.COM 
1677851SDana.Myers@Sun.COM     *ObjDescPtr = NULL;
1687851SDana.Myers@Sun.COM     if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP)
1697851SDana.Myers@Sun.COM     {
1707851SDana.Myers@Sun.COM         /*
1717851SDana.Myers@Sun.COM          * This is a named object reference. If this name was
1727851SDana.Myers@Sun.COM          * previously looked up in the namespace, it was stored in this op.
1737851SDana.Myers@Sun.COM          * Otherwise, go ahead and look it up now
1747851SDana.Myers@Sun.COM          */
1757851SDana.Myers@Sun.COM         if (!Op->Common.Node)
1767851SDana.Myers@Sun.COM         {
1777851SDana.Myers@Sun.COM             Status = AcpiNsLookup (WalkState->ScopeInfo,
1787851SDana.Myers@Sun.COM                         Op->Common.Value.String,
1797851SDana.Myers@Sun.COM                         ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
1807851SDana.Myers@Sun.COM                         ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL,
1817851SDana.Myers@Sun.COM                         ACPI_CAST_INDIRECT_PTR (ACPI_NAMESPACE_NODE, &(Op->Common.Node)));
1827851SDana.Myers@Sun.COM             if (ACPI_FAILURE (Status))
1837851SDana.Myers@Sun.COM             {
1847851SDana.Myers@Sun.COM                 /* Check if we are resolving a named reference within a package */
1857851SDana.Myers@Sun.COM 
1867851SDana.Myers@Sun.COM                 if ((Status == AE_NOT_FOUND) && (AcpiGbl_EnableInterpreterSlack) &&
1877851SDana.Myers@Sun.COM 
1887851SDana.Myers@Sun.COM                     ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) ||
1897851SDana.Myers@Sun.COM                      (Op->Common.Parent->Common.AmlOpcode == AML_VAR_PACKAGE_OP)))
1907851SDana.Myers@Sun.COM                 {
1917851SDana.Myers@Sun.COM                     /*
1927851SDana.Myers@Sun.COM                      * We didn't find the target and we are populating elements
1937851SDana.Myers@Sun.COM                      * of a package - ignore if slack enabled. Some ASL code
1947851SDana.Myers@Sun.COM                      * contains dangling invalid references in packages and
1957851SDana.Myers@Sun.COM                      * expects that no exception will be issued. Leave the
1967851SDana.Myers@Sun.COM                      * element as a null element. It cannot be used, but it
1977851SDana.Myers@Sun.COM                      * can be overwritten by subsequent ASL code - this is
1987851SDana.Myers@Sun.COM                      * typically the case.
1997851SDana.Myers@Sun.COM                      */
2007851SDana.Myers@Sun.COM                     ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
2017851SDana.Myers@Sun.COM                         "Ignoring unresolved reference in package [%4.4s]\n",
2027851SDana.Myers@Sun.COM                         WalkState->ScopeInfo->Scope.Node->Name.Ascii));
2037851SDana.Myers@Sun.COM 
2047851SDana.Myers@Sun.COM                     return_ACPI_STATUS (AE_OK);
2057851SDana.Myers@Sun.COM                 }
2067851SDana.Myers@Sun.COM                 else
2077851SDana.Myers@Sun.COM                 {
2087851SDana.Myers@Sun.COM                     ACPI_ERROR_NAMESPACE (Op->Common.Value.String, Status);
2097851SDana.Myers@Sun.COM                 }
2107851SDana.Myers@Sun.COM 
2117851SDana.Myers@Sun.COM                 return_ACPI_STATUS (Status);
2127851SDana.Myers@Sun.COM             }
2137851SDana.Myers@Sun.COM         }
2147851SDana.Myers@Sun.COM 
2157851SDana.Myers@Sun.COM         /* Special object resolution for elements of a package */
2167851SDana.Myers@Sun.COM 
2177851SDana.Myers@Sun.COM         if ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) ||
2187851SDana.Myers@Sun.COM             (Op->Common.Parent->Common.AmlOpcode == AML_VAR_PACKAGE_OP))
2197851SDana.Myers@Sun.COM         {
2207851SDana.Myers@Sun.COM             /*
2217851SDana.Myers@Sun.COM              * Attempt to resolve the node to a value before we insert it into
2227851SDana.Myers@Sun.COM              * the package. If this is a reference to a common data type,
2237851SDana.Myers@Sun.COM              * resolve it immediately. According to the ACPI spec, package
2247851SDana.Myers@Sun.COM              * elements can only be "data objects" or method references.
2257851SDana.Myers@Sun.COM              * Attempt to resolve to an Integer, Buffer, String or Package.
2267851SDana.Myers@Sun.COM              * If cannot, return the named reference (for things like Devices,
2277851SDana.Myers@Sun.COM              * Methods, etc.) Buffer Fields and Fields will resolve to simple
2287851SDana.Myers@Sun.COM              * objects (int/buf/str/pkg).
2297851SDana.Myers@Sun.COM              *
2307851SDana.Myers@Sun.COM              * NOTE: References to things like Devices, Methods, Mutexes, etc.
2317851SDana.Myers@Sun.COM              * will remain as named references. This behavior is not described
2327851SDana.Myers@Sun.COM              * in the ACPI spec, but it appears to be an oversight.
2337851SDana.Myers@Sun.COM              */
2347851SDana.Myers@Sun.COM             ObjDesc = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, Op->Common.Node);
2357851SDana.Myers@Sun.COM 
2367851SDana.Myers@Sun.COM             Status = AcpiExResolveNodeToValue (
2377851SDana.Myers@Sun.COM                         ACPI_CAST_INDIRECT_PTR (ACPI_NAMESPACE_NODE, &ObjDesc),
2387851SDana.Myers@Sun.COM                         WalkState);
2397851SDana.Myers@Sun.COM             if (ACPI_FAILURE (Status))
2407851SDana.Myers@Sun.COM             {
2417851SDana.Myers@Sun.COM                 return_ACPI_STATUS (Status);
2427851SDana.Myers@Sun.COM             }
2437851SDana.Myers@Sun.COM 
2447851SDana.Myers@Sun.COM             switch (Op->Common.Node->Type)
2457851SDana.Myers@Sun.COM             {
2467851SDana.Myers@Sun.COM             /*
2477851SDana.Myers@Sun.COM              * For these types, we need the actual node, not the subobject.
2487851SDana.Myers@Sun.COM              * However, the subobject did not get an extra reference count above.
2497851SDana.Myers@Sun.COM              *
2507851SDana.Myers@Sun.COM              * TBD: should ExResolveNodeToValue be changed to fix this?
2517851SDana.Myers@Sun.COM              */
2527851SDana.Myers@Sun.COM             case ACPI_TYPE_DEVICE:
2537851SDana.Myers@Sun.COM             case ACPI_TYPE_THERMAL:
2547851SDana.Myers@Sun.COM 
2557851SDana.Myers@Sun.COM                 AcpiUtAddReference (Op->Common.Node->Object);
2567851SDana.Myers@Sun.COM 
2577851SDana.Myers@Sun.COM                 /*lint -fallthrough */
2587851SDana.Myers@Sun.COM             /*
2597851SDana.Myers@Sun.COM              * For these types, we need the actual node, not the subobject.
2607851SDana.Myers@Sun.COM              * The subobject got an extra reference count in ExResolveNodeToValue.
2617851SDana.Myers@Sun.COM              */
2627851SDana.Myers@Sun.COM             case ACPI_TYPE_MUTEX:
2637851SDana.Myers@Sun.COM             case ACPI_TYPE_METHOD:
2647851SDana.Myers@Sun.COM             case ACPI_TYPE_POWER:
2657851SDana.Myers@Sun.COM             case ACPI_TYPE_PROCESSOR:
2667851SDana.Myers@Sun.COM             case ACPI_TYPE_EVENT:
2677851SDana.Myers@Sun.COM             case ACPI_TYPE_REGION:
2687851SDana.Myers@Sun.COM 
2697851SDana.Myers@Sun.COM                 /* We will create a reference object for these types below */
2707851SDana.Myers@Sun.COM                 break;
2717851SDana.Myers@Sun.COM 
2727851SDana.Myers@Sun.COM             default:
2737851SDana.Myers@Sun.COM                 /*
2747851SDana.Myers@Sun.COM                  * All other types - the node was resolved to an actual
2757851SDana.Myers@Sun.COM                  * object, we are done.
2767851SDana.Myers@Sun.COM                  */
2777851SDana.Myers@Sun.COM                 goto Exit;
2787851SDana.Myers@Sun.COM             }
2797851SDana.Myers@Sun.COM         }
2807851SDana.Myers@Sun.COM     }
2817851SDana.Myers@Sun.COM 
2827851SDana.Myers@Sun.COM     /* Create and init a new internal ACPI object */
2837851SDana.Myers@Sun.COM 
2847851SDana.Myers@Sun.COM     ObjDesc = AcpiUtCreateInternalObject (
2857851SDana.Myers@Sun.COM                 (AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode))->ObjectType);
2867851SDana.Myers@Sun.COM     if (!ObjDesc)
2877851SDana.Myers@Sun.COM     {
2887851SDana.Myers@Sun.COM         return_ACPI_STATUS (AE_NO_MEMORY);
2897851SDana.Myers@Sun.COM     }
2907851SDana.Myers@Sun.COM 
2917851SDana.Myers@Sun.COM     Status = AcpiDsInitObjectFromOp (WalkState, Op, Op->Common.AmlOpcode,
2927851SDana.Myers@Sun.COM                 &ObjDesc);
2937851SDana.Myers@Sun.COM     if (ACPI_FAILURE (Status))
2947851SDana.Myers@Sun.COM     {
2957851SDana.Myers@Sun.COM         AcpiUtRemoveReference (ObjDesc);
2967851SDana.Myers@Sun.COM         return_ACPI_STATUS (Status);
2977851SDana.Myers@Sun.COM     }
2987851SDana.Myers@Sun.COM 
2997851SDana.Myers@Sun.COM Exit:
3007851SDana.Myers@Sun.COM     *ObjDescPtr = ObjDesc;
3017851SDana.Myers@Sun.COM     return_ACPI_STATUS (Status);
3027851SDana.Myers@Sun.COM }
3037851SDana.Myers@Sun.COM 
3047851SDana.Myers@Sun.COM 
3057851SDana.Myers@Sun.COM /*******************************************************************************
3067851SDana.Myers@Sun.COM  *
3077851SDana.Myers@Sun.COM  * FUNCTION:    AcpiDsBuildInternalBufferObj
3087851SDana.Myers@Sun.COM  *
3097851SDana.Myers@Sun.COM  * PARAMETERS:  WalkState       - Current walk state
3107851SDana.Myers@Sun.COM  *              Op              - Parser object to be translated
3117851SDana.Myers@Sun.COM  *              BufferLength    - Length of the buffer
3127851SDana.Myers@Sun.COM  *              ObjDescPtr      - Where the ACPI internal object is returned
3137851SDana.Myers@Sun.COM  *
3147851SDana.Myers@Sun.COM  * RETURN:      Status
3157851SDana.Myers@Sun.COM  *
3167851SDana.Myers@Sun.COM  * DESCRIPTION: Translate a parser Op package object to the equivalent
3177851SDana.Myers@Sun.COM  *              namespace object
3187851SDana.Myers@Sun.COM  *
3197851SDana.Myers@Sun.COM  ******************************************************************************/
3207851SDana.Myers@Sun.COM 
3217851SDana.Myers@Sun.COM ACPI_STATUS
AcpiDsBuildInternalBufferObj(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op,UINT32 BufferLength,ACPI_OPERAND_OBJECT ** ObjDescPtr)3227851SDana.Myers@Sun.COM AcpiDsBuildInternalBufferObj (
3237851SDana.Myers@Sun.COM     ACPI_WALK_STATE         *WalkState,
3247851SDana.Myers@Sun.COM     ACPI_PARSE_OBJECT       *Op,
3257851SDana.Myers@Sun.COM     UINT32                  BufferLength,
3267851SDana.Myers@Sun.COM     ACPI_OPERAND_OBJECT     **ObjDescPtr)
3277851SDana.Myers@Sun.COM {
3287851SDana.Myers@Sun.COM     ACPI_PARSE_OBJECT       *Arg;
3297851SDana.Myers@Sun.COM     ACPI_OPERAND_OBJECT     *ObjDesc;
3307851SDana.Myers@Sun.COM     ACPI_PARSE_OBJECT       *ByteList;
3317851SDana.Myers@Sun.COM     UINT32                  ByteListLength = 0;
3327851SDana.Myers@Sun.COM 
3337851SDana.Myers@Sun.COM 
3347851SDana.Myers@Sun.COM     ACPI_FUNCTION_TRACE (DsBuildInternalBufferObj);
3357851SDana.Myers@Sun.COM 
3367851SDana.Myers@Sun.COM 
3377851SDana.Myers@Sun.COM     /*
3387851SDana.Myers@Sun.COM      * If we are evaluating a Named buffer object "Name (xxxx, Buffer)".
3397851SDana.Myers@Sun.COM      * The buffer object already exists (from the NS node), otherwise it must
3407851SDana.Myers@Sun.COM      * be created.
3417851SDana.Myers@Sun.COM      */
3427851SDana.Myers@Sun.COM     ObjDesc = *ObjDescPtr;
3437851SDana.Myers@Sun.COM     if (!ObjDesc)
3447851SDana.Myers@Sun.COM     {
3457851SDana.Myers@Sun.COM         /* Create a new buffer object */
3467851SDana.Myers@Sun.COM 
3477851SDana.Myers@Sun.COM         ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER);
3487851SDana.Myers@Sun.COM         *ObjDescPtr = ObjDesc;
3497851SDana.Myers@Sun.COM         if (!ObjDesc)
3507851SDana.Myers@Sun.COM         {
3517851SDana.Myers@Sun.COM             return_ACPI_STATUS (AE_NO_MEMORY);
3527851SDana.Myers@Sun.COM         }
3537851SDana.Myers@Sun.COM     }
3547851SDana.Myers@Sun.COM 
3557851SDana.Myers@Sun.COM     /*
3567851SDana.Myers@Sun.COM      * Second arg is the buffer data (optional) ByteList can be either
3577851SDana.Myers@Sun.COM      * individual bytes or a string initializer.  In either case, a
3587851SDana.Myers@Sun.COM      * ByteList appears in the AML.
3597851SDana.Myers@Sun.COM      */
3607851SDana.Myers@Sun.COM     Arg = Op->Common.Value.Arg;         /* skip first arg */
3617851SDana.Myers@Sun.COM 
3627851SDana.Myers@Sun.COM     ByteList = Arg->Named.Next;
3637851SDana.Myers@Sun.COM     if (ByteList)
3647851SDana.Myers@Sun.COM     {
3657851SDana.Myers@Sun.COM         if (ByteList->Common.AmlOpcode != AML_INT_BYTELIST_OP)
3667851SDana.Myers@Sun.COM         {
3677851SDana.Myers@Sun.COM             ACPI_ERROR ((AE_INFO,
3687851SDana.Myers@Sun.COM                 "Expecting bytelist, got AML opcode %X in op %p",
3697851SDana.Myers@Sun.COM                 ByteList->Common.AmlOpcode, ByteList));
3707851SDana.Myers@Sun.COM 
3717851SDana.Myers@Sun.COM             AcpiUtRemoveReference (ObjDesc);
3727851SDana.Myers@Sun.COM             return (AE_TYPE);
3737851SDana.Myers@Sun.COM         }
3747851SDana.Myers@Sun.COM 
3757851SDana.Myers@Sun.COM         ByteListLength = (UINT32) ByteList->Common.Value.Integer;
3767851SDana.Myers@Sun.COM     }
3777851SDana.Myers@Sun.COM 
3787851SDana.Myers@Sun.COM     /*
3797851SDana.Myers@Sun.COM      * The buffer length (number of bytes) will be the larger of:
3807851SDana.Myers@Sun.COM      * 1) The specified buffer length and
3817851SDana.Myers@Sun.COM      * 2) The length of the initializer byte list
3827851SDana.Myers@Sun.COM      */
3837851SDana.Myers@Sun.COM     ObjDesc->Buffer.Length = BufferLength;
3847851SDana.Myers@Sun.COM     if (ByteListLength > BufferLength)
3857851SDana.Myers@Sun.COM     {
3867851SDana.Myers@Sun.COM         ObjDesc->Buffer.Length = ByteListLength;
3877851SDana.Myers@Sun.COM     }
3887851SDana.Myers@Sun.COM 
3897851SDana.Myers@Sun.COM     /* Allocate the buffer */
3907851SDana.Myers@Sun.COM 
3917851SDana.Myers@Sun.COM     if (ObjDesc->Buffer.Length == 0)
3927851SDana.Myers@Sun.COM     {
3937851SDana.Myers@Sun.COM         ObjDesc->Buffer.Pointer = NULL;
3947851SDana.Myers@Sun.COM         ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
3957851SDana.Myers@Sun.COM             "Buffer defined with zero length in AML, creating\n"));
3967851SDana.Myers@Sun.COM     }
3977851SDana.Myers@Sun.COM     else
3987851SDana.Myers@Sun.COM     {
3997851SDana.Myers@Sun.COM         ObjDesc->Buffer.Pointer = ACPI_ALLOCATE_ZEROED (
4007851SDana.Myers@Sun.COM                                         ObjDesc->Buffer.Length);
4017851SDana.Myers@Sun.COM         if (!ObjDesc->Buffer.Pointer)
4027851SDana.Myers@Sun.COM         {
4037851SDana.Myers@Sun.COM             AcpiUtDeleteObjectDesc (ObjDesc);
4047851SDana.Myers@Sun.COM             return_ACPI_STATUS (AE_NO_MEMORY);
4057851SDana.Myers@Sun.COM         }
4067851SDana.Myers@Sun.COM 
4077851SDana.Myers@Sun.COM         /* Initialize buffer from the ByteList (if present) */
4087851SDana.Myers@Sun.COM 
4097851SDana.Myers@Sun.COM         if (ByteList)
4107851SDana.Myers@Sun.COM         {
4117851SDana.Myers@Sun.COM             ACPI_MEMCPY (ObjDesc->Buffer.Pointer, ByteList->Named.Data,
4127851SDana.Myers@Sun.COM                          ByteListLength);
4137851SDana.Myers@Sun.COM         }
4147851SDana.Myers@Sun.COM     }
4157851SDana.Myers@Sun.COM 
4167851SDana.Myers@Sun.COM     ObjDesc->Buffer.Flags |= AOPOBJ_DATA_VALID;
4177851SDana.Myers@Sun.COM     Op->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjDesc);
4187851SDana.Myers@Sun.COM     return_ACPI_STATUS (AE_OK);
4197851SDana.Myers@Sun.COM }
4207851SDana.Myers@Sun.COM 
4217851SDana.Myers@Sun.COM 
4227851SDana.Myers@Sun.COM /*******************************************************************************
4237851SDana.Myers@Sun.COM  *
4247851SDana.Myers@Sun.COM  * FUNCTION:    AcpiDsBuildInternalPackageObj
4257851SDana.Myers@Sun.COM  *
4267851SDana.Myers@Sun.COM  * PARAMETERS:  WalkState       - Current walk state
4277851SDana.Myers@Sun.COM  *              Op              - Parser object to be translated
4287851SDana.Myers@Sun.COM  *              ElementCount    - Number of elements in the package - this is
4297851SDana.Myers@Sun.COM  *                                the NumElements argument to Package()
4307851SDana.Myers@Sun.COM  *              ObjDescPtr      - Where the ACPI internal object is returned
4317851SDana.Myers@Sun.COM  *
4327851SDana.Myers@Sun.COM  * RETURN:      Status
4337851SDana.Myers@Sun.COM  *
4347851SDana.Myers@Sun.COM  * DESCRIPTION: Translate a parser Op package object to the equivalent
4357851SDana.Myers@Sun.COM  *              namespace object
4367851SDana.Myers@Sun.COM  *
4377851SDana.Myers@Sun.COM  * NOTE: The number of elements in the package will be always be the NumElements
4387851SDana.Myers@Sun.COM  * count, regardless of the number of elements in the package list. If
4397851SDana.Myers@Sun.COM  * NumElements is smaller, only that many package list elements are used.
4407851SDana.Myers@Sun.COM  * if NumElements is larger, the Package object is padded out with
4417851SDana.Myers@Sun.COM  * objects of type Uninitialized (as per ACPI spec.)
4427851SDana.Myers@Sun.COM  *
4437851SDana.Myers@Sun.COM  * Even though the ASL compilers do not allow NumElements to be smaller
4447851SDana.Myers@Sun.COM  * than the Package list length (for the fixed length package opcode), some
4457851SDana.Myers@Sun.COM  * BIOS code modifies the AML on the fly to adjust the NumElements, and
4467851SDana.Myers@Sun.COM  * this code compensates for that. This also provides compatibility with
4477851SDana.Myers@Sun.COM  * other AML interpreters.
4487851SDana.Myers@Sun.COM  *
4497851SDana.Myers@Sun.COM  ******************************************************************************/
4507851SDana.Myers@Sun.COM 
4517851SDana.Myers@Sun.COM ACPI_STATUS
AcpiDsBuildInternalPackageObj(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op,UINT32 ElementCount,ACPI_OPERAND_OBJECT ** ObjDescPtr)4527851SDana.Myers@Sun.COM AcpiDsBuildInternalPackageObj (
4537851SDana.Myers@Sun.COM     ACPI_WALK_STATE         *WalkState,
4547851SDana.Myers@Sun.COM     ACPI_PARSE_OBJECT       *Op,
4557851SDana.Myers@Sun.COM     UINT32                  ElementCount,
4567851SDana.Myers@Sun.COM     ACPI_OPERAND_OBJECT     **ObjDescPtr)
4577851SDana.Myers@Sun.COM {
4587851SDana.Myers@Sun.COM     ACPI_PARSE_OBJECT       *Arg;
4597851SDana.Myers@Sun.COM     ACPI_PARSE_OBJECT       *Parent;
4607851SDana.Myers@Sun.COM     ACPI_OPERAND_OBJECT     *ObjDesc = NULL;
4617851SDana.Myers@Sun.COM     ACPI_STATUS             Status = AE_OK;
4627851SDana.Myers@Sun.COM     UINT32                  i;
4637851SDana.Myers@Sun.COM     UINT16                  Index;
4647851SDana.Myers@Sun.COM     UINT16                  ReferenceCount;
4657851SDana.Myers@Sun.COM 
4667851SDana.Myers@Sun.COM 
4677851SDana.Myers@Sun.COM     ACPI_FUNCTION_TRACE (DsBuildInternalPackageObj);
4687851SDana.Myers@Sun.COM 
4697851SDana.Myers@Sun.COM 
4707851SDana.Myers@Sun.COM     /* Find the parent of a possibly nested package */
4717851SDana.Myers@Sun.COM 
4727851SDana.Myers@Sun.COM     Parent = Op->Common.Parent;
4737851SDana.Myers@Sun.COM     while ((Parent->Common.AmlOpcode == AML_PACKAGE_OP) ||
4747851SDana.Myers@Sun.COM            (Parent->Common.AmlOpcode == AML_VAR_PACKAGE_OP))
4757851SDana.Myers@Sun.COM     {
4767851SDana.Myers@Sun.COM         Parent = Parent->Common.Parent;
4777851SDana.Myers@Sun.COM     }
4787851SDana.Myers@Sun.COM 
4797851SDana.Myers@Sun.COM     /*
4807851SDana.Myers@Sun.COM      * If we are evaluating a Named package object "Name (xxxx, Package)",
4817851SDana.Myers@Sun.COM      * the package object already exists, otherwise it must be created.
4827851SDana.Myers@Sun.COM      */
4837851SDana.Myers@Sun.COM     ObjDesc = *ObjDescPtr;
4847851SDana.Myers@Sun.COM     if (!ObjDesc)
4857851SDana.Myers@Sun.COM     {
4867851SDana.Myers@Sun.COM         ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PACKAGE);
4877851SDana.Myers@Sun.COM         *ObjDescPtr = ObjDesc;
4887851SDana.Myers@Sun.COM         if (!ObjDesc)
4897851SDana.Myers@Sun.COM         {
4907851SDana.Myers@Sun.COM             return_ACPI_STATUS (AE_NO_MEMORY);
4917851SDana.Myers@Sun.COM         }
4927851SDana.Myers@Sun.COM 
4937851SDana.Myers@Sun.COM         ObjDesc->Package.Node = Parent->Common.Node;
4947851SDana.Myers@Sun.COM     }
4957851SDana.Myers@Sun.COM 
4967851SDana.Myers@Sun.COM     /*
4977851SDana.Myers@Sun.COM      * Allocate the element array (array of pointers to the individual
4987851SDana.Myers@Sun.COM      * objects) based on the NumElements parameter. Add an extra pointer slot
4997851SDana.Myers@Sun.COM      * so that the list is always null terminated.
5007851SDana.Myers@Sun.COM      */
5017851SDana.Myers@Sun.COM     ObjDesc->Package.Elements = ACPI_ALLOCATE_ZEROED (
5027851SDana.Myers@Sun.COM         ((ACPI_SIZE) ElementCount + 1) * sizeof (void *));
5037851SDana.Myers@Sun.COM 
5047851SDana.Myers@Sun.COM     if (!ObjDesc->Package.Elements)
5057851SDana.Myers@Sun.COM     {
5067851SDana.Myers@Sun.COM         AcpiUtDeleteObjectDesc (ObjDesc);
5077851SDana.Myers@Sun.COM         return_ACPI_STATUS (AE_NO_MEMORY);
5087851SDana.Myers@Sun.COM     }
5097851SDana.Myers@Sun.COM 
5107851SDana.Myers@Sun.COM     ObjDesc->Package.Count = ElementCount;
5117851SDana.Myers@Sun.COM 
5127851SDana.Myers@Sun.COM     /*
5137851SDana.Myers@Sun.COM      * Initialize the elements of the package, up to the NumElements count.
5147851SDana.Myers@Sun.COM      * Package is automatically padded with uninitialized (NULL) elements
5157851SDana.Myers@Sun.COM      * if NumElements is greater than the package list length. Likewise,
5167851SDana.Myers@Sun.COM      * Package is truncated if NumElements is less than the list length.
5177851SDana.Myers@Sun.COM      */
5187851SDana.Myers@Sun.COM     Arg = Op->Common.Value.Arg;
5197851SDana.Myers@Sun.COM     Arg = Arg->Common.Next;
5207851SDana.Myers@Sun.COM     for (i = 0; Arg && (i < ElementCount); i++)
5217851SDana.Myers@Sun.COM     {
5227851SDana.Myers@Sun.COM         if (Arg->Common.AmlOpcode == AML_INT_RETURN_VALUE_OP)
5237851SDana.Myers@Sun.COM         {
5247851SDana.Myers@Sun.COM             if (Arg->Common.Node->Type == ACPI_TYPE_METHOD)
5257851SDana.Myers@Sun.COM             {
5267851SDana.Myers@Sun.COM                 /*
5277851SDana.Myers@Sun.COM                  * A method reference "looks" to the parser to be a method
5287851SDana.Myers@Sun.COM                  * invocation, so we special case it here
5297851SDana.Myers@Sun.COM                  */
5307851SDana.Myers@Sun.COM                 Arg->Common.AmlOpcode = AML_INT_NAMEPATH_OP;
5317851SDana.Myers@Sun.COM                 Status = AcpiDsBuildInternalObject (WalkState, Arg,
5327851SDana.Myers@Sun.COM                             &ObjDesc->Package.Elements[i]);
5337851SDana.Myers@Sun.COM             }
5347851SDana.Myers@Sun.COM             else
5357851SDana.Myers@Sun.COM             {
5367851SDana.Myers@Sun.COM                 /* This package element is already built, just get it */
5377851SDana.Myers@Sun.COM 
5387851SDana.Myers@Sun.COM                 ObjDesc->Package.Elements[i] =
5397851SDana.Myers@Sun.COM                     ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, Arg->Common.Node);
5407851SDana.Myers@Sun.COM             }
5417851SDana.Myers@Sun.COM         }
5427851SDana.Myers@Sun.COM         else
5437851SDana.Myers@Sun.COM         {
5447851SDana.Myers@Sun.COM             Status = AcpiDsBuildInternalObject (WalkState, Arg,
5457851SDana.Myers@Sun.COM                         &ObjDesc->Package.Elements[i]);
5467851SDana.Myers@Sun.COM         }
5477851SDana.Myers@Sun.COM 
5487851SDana.Myers@Sun.COM         if (*ObjDescPtr)
5497851SDana.Myers@Sun.COM         {
5507851SDana.Myers@Sun.COM             /* Existing package, get existing reference count */
5517851SDana.Myers@Sun.COM 
5527851SDana.Myers@Sun.COM             ReferenceCount = (*ObjDescPtr)->Common.ReferenceCount;
5537851SDana.Myers@Sun.COM             if (ReferenceCount > 1)
5547851SDana.Myers@Sun.COM             {
5557851SDana.Myers@Sun.COM                 /* Make new element ref count match original ref count */
5567851SDana.Myers@Sun.COM 
5577851SDana.Myers@Sun.COM                 for (Index = 0; Index < (ReferenceCount - 1); Index++)
5587851SDana.Myers@Sun.COM                 {
5597851SDana.Myers@Sun.COM                     AcpiUtAddReference ((ObjDesc->Package.Elements[i]));
5607851SDana.Myers@Sun.COM                 }
5617851SDana.Myers@Sun.COM             }
5627851SDana.Myers@Sun.COM         }
5637851SDana.Myers@Sun.COM 
5647851SDana.Myers@Sun.COM         Arg = Arg->Common.Next;
5657851SDana.Myers@Sun.COM     }
5667851SDana.Myers@Sun.COM 
5677851SDana.Myers@Sun.COM     /* Check for match between NumElements and actual length of PackageList */
5687851SDana.Myers@Sun.COM 
5697851SDana.Myers@Sun.COM     if (Arg)
5707851SDana.Myers@Sun.COM     {
5717851SDana.Myers@Sun.COM         /*
5727851SDana.Myers@Sun.COM          * NumElements was exhausted, but there are remaining elements in the
573*11225SDana.Myers@Sun.COM          * PackageList. Truncate the package to NumElements.
5747851SDana.Myers@Sun.COM          *
5757851SDana.Myers@Sun.COM          * Note: technically, this is an error, from ACPI spec: "It is an error
5767851SDana.Myers@Sun.COM          * for NumElements to be less than the number of elements in the
577*11225SDana.Myers@Sun.COM          * PackageList". However, we just print a message and
578*11225SDana.Myers@Sun.COM          * no exception is returned. This provides Windows compatibility. Some
579*11225SDana.Myers@Sun.COM          * BIOSs will alter the NumElements on the fly, creating this type
580*11225SDana.Myers@Sun.COM          * of ill-formed package object.
5817851SDana.Myers@Sun.COM          */
5827851SDana.Myers@Sun.COM         while (Arg)
5837851SDana.Myers@Sun.COM         {
584*11225SDana.Myers@Sun.COM             /*
585*11225SDana.Myers@Sun.COM              * We must delete any package elements that were created earlier
586*11225SDana.Myers@Sun.COM              * and are not going to be used because of the package truncation.
587*11225SDana.Myers@Sun.COM              */
588*11225SDana.Myers@Sun.COM             if (Arg->Common.Node)
589*11225SDana.Myers@Sun.COM             {
590*11225SDana.Myers@Sun.COM                 AcpiUtRemoveReference (
591*11225SDana.Myers@Sun.COM                     ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, Arg->Common.Node));
592*11225SDana.Myers@Sun.COM                 Arg->Common.Node = NULL;
593*11225SDana.Myers@Sun.COM             }
594*11225SDana.Myers@Sun.COM 
5957851SDana.Myers@Sun.COM             /* Find out how many elements there really are */
5967851SDana.Myers@Sun.COM 
5977851SDana.Myers@Sun.COM             i++;
5987851SDana.Myers@Sun.COM             Arg = Arg->Common.Next;
5997851SDana.Myers@Sun.COM         }
6007851SDana.Myers@Sun.COM 
601*11225SDana.Myers@Sun.COM         ACPI_INFO ((AE_INFO,
602*11225SDana.Myers@Sun.COM             "Actual Package length (0x%X) is larger than NumElements field (0x%X), truncated\n",
6037851SDana.Myers@Sun.COM             i, ElementCount));
6047851SDana.Myers@Sun.COM     }
6057851SDana.Myers@Sun.COM     else if (i < ElementCount)
6067851SDana.Myers@Sun.COM     {
6077851SDana.Myers@Sun.COM         /*
6087851SDana.Myers@Sun.COM          * Arg list (elements) was exhausted, but we did not reach NumElements count.
6097851SDana.Myers@Sun.COM          * Note: this is not an error, the package is padded out with NULLs.
6107851SDana.Myers@Sun.COM          */
6117851SDana.Myers@Sun.COM         ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
612*11225SDana.Myers@Sun.COM             "Package List length (0x%X) smaller than NumElements count (0x%X), padded with null elements\n",
6137851SDana.Myers@Sun.COM             i, ElementCount));
6147851SDana.Myers@Sun.COM     }
6157851SDana.Myers@Sun.COM 
6167851SDana.Myers@Sun.COM     ObjDesc->Package.Flags |= AOPOBJ_DATA_VALID;
6177851SDana.Myers@Sun.COM     Op->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjDesc);
6187851SDana.Myers@Sun.COM     return_ACPI_STATUS (Status);
6197851SDana.Myers@Sun.COM }
6207851SDana.Myers@Sun.COM 
6217851SDana.Myers@Sun.COM 
6227851SDana.Myers@Sun.COM /*******************************************************************************
6237851SDana.Myers@Sun.COM  *
6247851SDana.Myers@Sun.COM  * FUNCTION:    AcpiDsCreateNode
6257851SDana.Myers@Sun.COM  *
6267851SDana.Myers@Sun.COM  * PARAMETERS:  WalkState       - Current walk state
6277851SDana.Myers@Sun.COM  *              Node            - NS Node to be initialized
6287851SDana.Myers@Sun.COM  *              Op              - Parser object to be translated
6297851SDana.Myers@Sun.COM  *
6307851SDana.Myers@Sun.COM  * RETURN:      Status
6317851SDana.Myers@Sun.COM  *
6327851SDana.Myers@Sun.COM  * DESCRIPTION: Create the object to be associated with a namespace node
6337851SDana.Myers@Sun.COM  *
6347851SDana.Myers@Sun.COM  ******************************************************************************/
6357851SDana.Myers@Sun.COM 
6367851SDana.Myers@Sun.COM ACPI_STATUS
AcpiDsCreateNode(ACPI_WALK_STATE * WalkState,ACPI_NAMESPACE_NODE * Node,ACPI_PARSE_OBJECT * Op)6377851SDana.Myers@Sun.COM AcpiDsCreateNode (
6387851SDana.Myers@Sun.COM     ACPI_WALK_STATE         *WalkState,
6397851SDana.Myers@Sun.COM     ACPI_NAMESPACE_NODE     *Node,
6407851SDana.Myers@Sun.COM     ACPI_PARSE_OBJECT       *Op)
6417851SDana.Myers@Sun.COM {
6427851SDana.Myers@Sun.COM     ACPI_STATUS             Status;
6437851SDana.Myers@Sun.COM     ACPI_OPERAND_OBJECT     *ObjDesc;
6447851SDana.Myers@Sun.COM 
6457851SDana.Myers@Sun.COM 
6467851SDana.Myers@Sun.COM     ACPI_FUNCTION_TRACE_PTR (DsCreateNode, Op);
6477851SDana.Myers@Sun.COM 
6487851SDana.Myers@Sun.COM 
6497851SDana.Myers@Sun.COM     /*
6507851SDana.Myers@Sun.COM      * Because of the execution pass through the non-control-method
6517851SDana.Myers@Sun.COM      * parts of the table, we can arrive here twice.  Only init
6527851SDana.Myers@Sun.COM      * the named object node the first time through
6537851SDana.Myers@Sun.COM      */
6547851SDana.Myers@Sun.COM     if (AcpiNsGetAttachedObject (Node))
6557851SDana.Myers@Sun.COM     {
6567851SDana.Myers@Sun.COM         return_ACPI_STATUS (AE_OK);
6577851SDana.Myers@Sun.COM     }
6587851SDana.Myers@Sun.COM 
6597851SDana.Myers@Sun.COM     if (!Op->Common.Value.Arg)
6607851SDana.Myers@Sun.COM     {
6617851SDana.Myers@Sun.COM         /* No arguments, there is nothing to do */
6627851SDana.Myers@Sun.COM 
6637851SDana.Myers@Sun.COM         return_ACPI_STATUS (AE_OK);
6647851SDana.Myers@Sun.COM     }
6657851SDana.Myers@Sun.COM 
6667851SDana.Myers@Sun.COM     /* Build an internal object for the argument(s) */
6677851SDana.Myers@Sun.COM 
6687851SDana.Myers@Sun.COM     Status = AcpiDsBuildInternalObject (WalkState, Op->Common.Value.Arg,
6697851SDana.Myers@Sun.COM                 &ObjDesc);
6707851SDana.Myers@Sun.COM     if (ACPI_FAILURE (Status))
6717851SDana.Myers@Sun.COM     {
6727851SDana.Myers@Sun.COM         return_ACPI_STATUS (Status);
6737851SDana.Myers@Sun.COM     }
6747851SDana.Myers@Sun.COM 
6757851SDana.Myers@Sun.COM     /* Re-type the object according to its argument */
6767851SDana.Myers@Sun.COM 
6779980SDana.Myers@Sun.COM     Node->Type = ObjDesc->Common.Type;
6787851SDana.Myers@Sun.COM 
6797851SDana.Myers@Sun.COM     /* Attach obj to node */
6807851SDana.Myers@Sun.COM 
6817851SDana.Myers@Sun.COM     Status = AcpiNsAttachObject (Node, ObjDesc, Node->Type);
6827851SDana.Myers@Sun.COM 
6837851SDana.Myers@Sun.COM     /* Remove local reference to the object */
6847851SDana.Myers@Sun.COM 
6857851SDana.Myers@Sun.COM     AcpiUtRemoveReference (ObjDesc);
6867851SDana.Myers@Sun.COM     return_ACPI_STATUS (Status);
6877851SDana.Myers@Sun.COM }
6887851SDana.Myers@Sun.COM 
6897851SDana.Myers@Sun.COM #endif /* ACPI_NO_METHOD_EXECUTION */
6907851SDana.Myers@Sun.COM 
6917851SDana.Myers@Sun.COM 
6927851SDana.Myers@Sun.COM /*******************************************************************************
6937851SDana.Myers@Sun.COM  *
6947851SDana.Myers@Sun.COM  * FUNCTION:    AcpiDsInitObjectFromOp
6957851SDana.Myers@Sun.COM  *
6967851SDana.Myers@Sun.COM  * PARAMETERS:  WalkState       - Current walk state
6977851SDana.Myers@Sun.COM  *              Op              - Parser op used to init the internal object
6987851SDana.Myers@Sun.COM  *              Opcode          - AML opcode associated with the object
6997851SDana.Myers@Sun.COM  *              RetObjDesc      - Namespace object to be initialized
7007851SDana.Myers@Sun.COM  *
7017851SDana.Myers@Sun.COM  * RETURN:      Status
7027851SDana.Myers@Sun.COM  *
7037851SDana.Myers@Sun.COM  * DESCRIPTION: Initialize a namespace object from a parser Op and its
7047851SDana.Myers@Sun.COM  *              associated arguments.  The namespace object is a more compact
7057851SDana.Myers@Sun.COM  *              representation of the Op and its arguments.
7067851SDana.Myers@Sun.COM  *
7077851SDana.Myers@Sun.COM  ******************************************************************************/
7087851SDana.Myers@Sun.COM 
7097851SDana.Myers@Sun.COM ACPI_STATUS
AcpiDsInitObjectFromOp(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op,UINT16 Opcode,ACPI_OPERAND_OBJECT ** RetObjDesc)7107851SDana.Myers@Sun.COM AcpiDsInitObjectFromOp (
7117851SDana.Myers@Sun.COM     ACPI_WALK_STATE         *WalkState,
7127851SDana.Myers@Sun.COM     ACPI_PARSE_OBJECT       *Op,
7137851SDana.Myers@Sun.COM     UINT16                  Opcode,
7147851SDana.Myers@Sun.COM     ACPI_OPERAND_OBJECT     **RetObjDesc)
7157851SDana.Myers@Sun.COM {
7167851SDana.Myers@Sun.COM     const ACPI_OPCODE_INFO  *OpInfo;
7177851SDana.Myers@Sun.COM     ACPI_OPERAND_OBJECT     *ObjDesc;
7187851SDana.Myers@Sun.COM     ACPI_STATUS             Status = AE_OK;
7197851SDana.Myers@Sun.COM 
7207851SDana.Myers@Sun.COM 
7217851SDana.Myers@Sun.COM     ACPI_FUNCTION_TRACE (DsInitObjectFromOp);
7227851SDana.Myers@Sun.COM 
7237851SDana.Myers@Sun.COM 
7247851SDana.Myers@Sun.COM     ObjDesc = *RetObjDesc;
7257851SDana.Myers@Sun.COM     OpInfo = AcpiPsGetOpcodeInfo (Opcode);
7267851SDana.Myers@Sun.COM     if (OpInfo->Class == AML_CLASS_UNKNOWN)
7277851SDana.Myers@Sun.COM     {
7287851SDana.Myers@Sun.COM         /* Unknown opcode */
7297851SDana.Myers@Sun.COM 
7307851SDana.Myers@Sun.COM         return_ACPI_STATUS (AE_TYPE);
7317851SDana.Myers@Sun.COM     }
7327851SDana.Myers@Sun.COM 
7337851SDana.Myers@Sun.COM     /* Perform per-object initialization */
7347851SDana.Myers@Sun.COM 
7359980SDana.Myers@Sun.COM     switch (ObjDesc->Common.Type)
7367851SDana.Myers@Sun.COM     {
7377851SDana.Myers@Sun.COM     case ACPI_TYPE_BUFFER:
7387851SDana.Myers@Sun.COM 
7397851SDana.Myers@Sun.COM         /*
7407851SDana.Myers@Sun.COM          * Defer evaluation of Buffer TermArg operand
7417851SDana.Myers@Sun.COM          */
7427851SDana.Myers@Sun.COM         ObjDesc->Buffer.Node      = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE,
7437851SDana.Myers@Sun.COM                                         WalkState->Operands[0]);
7447851SDana.Myers@Sun.COM         ObjDesc->Buffer.AmlStart  = Op->Named.Data;
7457851SDana.Myers@Sun.COM         ObjDesc->Buffer.AmlLength = Op->Named.Length;
7467851SDana.Myers@Sun.COM         break;
7477851SDana.Myers@Sun.COM 
7487851SDana.Myers@Sun.COM 
7497851SDana.Myers@Sun.COM     case ACPI_TYPE_PACKAGE:
7507851SDana.Myers@Sun.COM 
7517851SDana.Myers@Sun.COM         /*
7527851SDana.Myers@Sun.COM          * Defer evaluation of Package TermArg operand
7537851SDana.Myers@Sun.COM          */
7547851SDana.Myers@Sun.COM         ObjDesc->Package.Node      = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE,
7557851SDana.Myers@Sun.COM                                         WalkState->Operands[0]);
7567851SDana.Myers@Sun.COM         ObjDesc->Package.AmlStart  = Op->Named.Data;
7577851SDana.Myers@Sun.COM         ObjDesc->Package.AmlLength = Op->Named.Length;
7587851SDana.Myers@Sun.COM         break;
7597851SDana.Myers@Sun.COM 
7607851SDana.Myers@Sun.COM 
7617851SDana.Myers@Sun.COM     case ACPI_TYPE_INTEGER:
7627851SDana.Myers@Sun.COM 
7637851SDana.Myers@Sun.COM         switch (OpInfo->Type)
7647851SDana.Myers@Sun.COM         {
7657851SDana.Myers@Sun.COM         case AML_TYPE_CONSTANT:
7667851SDana.Myers@Sun.COM             /*
7677851SDana.Myers@Sun.COM              * Resolve AML Constants here - AND ONLY HERE!
7687851SDana.Myers@Sun.COM              * All constants are integers.
7697851SDana.Myers@Sun.COM              * We mark the integer with a flag that indicates that it started
7707851SDana.Myers@Sun.COM              * life as a constant -- so that stores to constants will perform
7717851SDana.Myers@Sun.COM              * as expected (noop). ZeroOp is used as a placeholder for optional
7727851SDana.Myers@Sun.COM              * target operands.
7737851SDana.Myers@Sun.COM              */
7747851SDana.Myers@Sun.COM             ObjDesc->Common.Flags = AOPOBJ_AML_CONSTANT;
7757851SDana.Myers@Sun.COM 
7767851SDana.Myers@Sun.COM             switch (Opcode)
7777851SDana.Myers@Sun.COM             {
7787851SDana.Myers@Sun.COM             case AML_ZERO_OP:
7797851SDana.Myers@Sun.COM 
7807851SDana.Myers@Sun.COM                 ObjDesc->Integer.Value = 0;
7817851SDana.Myers@Sun.COM                 break;
7827851SDana.Myers@Sun.COM 
7837851SDana.Myers@Sun.COM             case AML_ONE_OP:
7847851SDana.Myers@Sun.COM 
7857851SDana.Myers@Sun.COM                 ObjDesc->Integer.Value = 1;
7867851SDana.Myers@Sun.COM                 break;
7877851SDana.Myers@Sun.COM 
7887851SDana.Myers@Sun.COM             case AML_ONES_OP:
7897851SDana.Myers@Sun.COM 
7907851SDana.Myers@Sun.COM                 ObjDesc->Integer.Value = ACPI_INTEGER_MAX;
7917851SDana.Myers@Sun.COM 
7927851SDana.Myers@Sun.COM                 /* Truncate value if we are executing from a 32-bit ACPI table */
7937851SDana.Myers@Sun.COM 
7947851SDana.Myers@Sun.COM #ifndef ACPI_NO_METHOD_EXECUTION
7957851SDana.Myers@Sun.COM                 AcpiExTruncateFor32bitTable (ObjDesc);
7967851SDana.Myers@Sun.COM #endif
7977851SDana.Myers@Sun.COM                 break;
7987851SDana.Myers@Sun.COM 
7997851SDana.Myers@Sun.COM             case AML_REVISION_OP:
8007851SDana.Myers@Sun.COM 
8017851SDana.Myers@Sun.COM                 ObjDesc->Integer.Value = ACPI_CA_VERSION;
8027851SDana.Myers@Sun.COM                 break;
8037851SDana.Myers@Sun.COM 
8047851SDana.Myers@Sun.COM             default:
8057851SDana.Myers@Sun.COM 
8067851SDana.Myers@Sun.COM                 ACPI_ERROR ((AE_INFO,
8077851SDana.Myers@Sun.COM                     "Unknown constant opcode %X", Opcode));
8087851SDana.Myers@Sun.COM                 Status = AE_AML_OPERAND_TYPE;
8097851SDana.Myers@Sun.COM                 break;
8107851SDana.Myers@Sun.COM             }
8117851SDana.Myers@Sun.COM             break;
8127851SDana.Myers@Sun.COM 
8137851SDana.Myers@Sun.COM 
8147851SDana.Myers@Sun.COM         case AML_TYPE_LITERAL:
8157851SDana.Myers@Sun.COM 
8167851SDana.Myers@Sun.COM             ObjDesc->Integer.Value = Op->Common.Value.Integer;
8177851SDana.Myers@Sun.COM #ifndef ACPI_NO_METHOD_EXECUTION
8187851SDana.Myers@Sun.COM             AcpiExTruncateFor32bitTable (ObjDesc);
8197851SDana.Myers@Sun.COM #endif
8207851SDana.Myers@Sun.COM             break;
8217851SDana.Myers@Sun.COM 
8227851SDana.Myers@Sun.COM 
8237851SDana.Myers@Sun.COM         default:
8247851SDana.Myers@Sun.COM             ACPI_ERROR ((AE_INFO, "Unknown Integer type %X",
8257851SDana.Myers@Sun.COM                 OpInfo->Type));
8267851SDana.Myers@Sun.COM             Status = AE_AML_OPERAND_TYPE;
8277851SDana.Myers@Sun.COM             break;
8287851SDana.Myers@Sun.COM         }
8297851SDana.Myers@Sun.COM         break;
8307851SDana.Myers@Sun.COM 
8317851SDana.Myers@Sun.COM 
8327851SDana.Myers@Sun.COM     case ACPI_TYPE_STRING:
8337851SDana.Myers@Sun.COM 
8347851SDana.Myers@Sun.COM         ObjDesc->String.Pointer = Op->Common.Value.String;
8357851SDana.Myers@Sun.COM         ObjDesc->String.Length = (UINT32) ACPI_STRLEN (Op->Common.Value.String);
8367851SDana.Myers@Sun.COM 
8377851SDana.Myers@Sun.COM         /*
8387851SDana.Myers@Sun.COM          * The string is contained in the ACPI table, don't ever try
8397851SDana.Myers@Sun.COM          * to delete it
8407851SDana.Myers@Sun.COM          */
8417851SDana.Myers@Sun.COM         ObjDesc->Common.Flags |= AOPOBJ_STATIC_POINTER;
8427851SDana.Myers@Sun.COM         break;
8437851SDana.Myers@Sun.COM 
8447851SDana.Myers@Sun.COM 
8457851SDana.Myers@Sun.COM     case ACPI_TYPE_METHOD:
8467851SDana.Myers@Sun.COM         break;
8477851SDana.Myers@Sun.COM 
8487851SDana.Myers@Sun.COM 
8497851SDana.Myers@Sun.COM     case ACPI_TYPE_LOCAL_REFERENCE:
8507851SDana.Myers@Sun.COM 
8517851SDana.Myers@Sun.COM         switch (OpInfo->Type)
8527851SDana.Myers@Sun.COM         {
8537851SDana.Myers@Sun.COM         case AML_TYPE_LOCAL_VARIABLE:
8547851SDana.Myers@Sun.COM 
8557851SDana.Myers@Sun.COM             /* Local ID (0-7) is (AML opcode - base AML_LOCAL_OP) */
8567851SDana.Myers@Sun.COM 
8579980SDana.Myers@Sun.COM             ObjDesc->Reference.Value = ((UINT32) Opcode) - AML_LOCAL_OP;
8587851SDana.Myers@Sun.COM             ObjDesc->Reference.Class = ACPI_REFCLASS_LOCAL;
8597851SDana.Myers@Sun.COM 
8607851SDana.Myers@Sun.COM #ifndef ACPI_NO_METHOD_EXECUTION
8617851SDana.Myers@Sun.COM             Status = AcpiDsMethodDataGetNode (ACPI_REFCLASS_LOCAL,
8627851SDana.Myers@Sun.COM                         ObjDesc->Reference.Value, WalkState,
8637851SDana.Myers@Sun.COM                         ACPI_CAST_INDIRECT_PTR (ACPI_NAMESPACE_NODE,
8647851SDana.Myers@Sun.COM                             &ObjDesc->Reference.Object));
8657851SDana.Myers@Sun.COM #endif
8667851SDana.Myers@Sun.COM             break;
8677851SDana.Myers@Sun.COM 
8687851SDana.Myers@Sun.COM 
8697851SDana.Myers@Sun.COM         case AML_TYPE_METHOD_ARGUMENT:
8707851SDana.Myers@Sun.COM 
8717851SDana.Myers@Sun.COM             /* Arg ID (0-6) is (AML opcode - base AML_ARG_OP) */
8727851SDana.Myers@Sun.COM 
8739980SDana.Myers@Sun.COM             ObjDesc->Reference.Value = ((UINT32) Opcode) - AML_ARG_OP;
8747851SDana.Myers@Sun.COM             ObjDesc->Reference.Class = ACPI_REFCLASS_ARG;
8757851SDana.Myers@Sun.COM 
8767851SDana.Myers@Sun.COM #ifndef ACPI_NO_METHOD_EXECUTION
8777851SDana.Myers@Sun.COM             Status = AcpiDsMethodDataGetNode (ACPI_REFCLASS_ARG,
8787851SDana.Myers@Sun.COM                         ObjDesc->Reference.Value, WalkState,
8797851SDana.Myers@Sun.COM                         ACPI_CAST_INDIRECT_PTR (ACPI_NAMESPACE_NODE,
8807851SDana.Myers@Sun.COM                             &ObjDesc->Reference.Object));
8817851SDana.Myers@Sun.COM #endif
8827851SDana.Myers@Sun.COM             break;
8837851SDana.Myers@Sun.COM 
8847851SDana.Myers@Sun.COM         default: /* Object name or Debug object */
8857851SDana.Myers@Sun.COM 
8867851SDana.Myers@Sun.COM             switch (Op->Common.AmlOpcode)
8877851SDana.Myers@Sun.COM             {
8887851SDana.Myers@Sun.COM             case AML_INT_NAMEPATH_OP:
8897851SDana.Myers@Sun.COM 
8907851SDana.Myers@Sun.COM                 /* Node was saved in Op */
8917851SDana.Myers@Sun.COM 
8927851SDana.Myers@Sun.COM                 ObjDesc->Reference.Node = Op->Common.Node;
8937851SDana.Myers@Sun.COM                 ObjDesc->Reference.Object = Op->Common.Node->Object;
8947851SDana.Myers@Sun.COM                 ObjDesc->Reference.Class = ACPI_REFCLASS_NAME;
8957851SDana.Myers@Sun.COM                 break;
8967851SDana.Myers@Sun.COM 
8977851SDana.Myers@Sun.COM             case AML_DEBUG_OP:
8987851SDana.Myers@Sun.COM 
8997851SDana.Myers@Sun.COM                 ObjDesc->Reference.Class = ACPI_REFCLASS_DEBUG;
9007851SDana.Myers@Sun.COM                 break;
9017851SDana.Myers@Sun.COM 
9027851SDana.Myers@Sun.COM             default:
9037851SDana.Myers@Sun.COM 
9047851SDana.Myers@Sun.COM                 ACPI_ERROR ((AE_INFO,
9057851SDana.Myers@Sun.COM                     "Unimplemented reference type for AML opcode: %4.4X", Opcode));
9067851SDana.Myers@Sun.COM                 return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
9077851SDana.Myers@Sun.COM             }
9087851SDana.Myers@Sun.COM             break;
9097851SDana.Myers@Sun.COM         }
9107851SDana.Myers@Sun.COM         break;
9117851SDana.Myers@Sun.COM 
9127851SDana.Myers@Sun.COM 
9137851SDana.Myers@Sun.COM     default:
9147851SDana.Myers@Sun.COM 
9157851SDana.Myers@Sun.COM         ACPI_ERROR ((AE_INFO, "Unimplemented data type: %X",
9169980SDana.Myers@Sun.COM             ObjDesc->Common.Type));
9177851SDana.Myers@Sun.COM 
9187851SDana.Myers@Sun.COM         Status = AE_AML_OPERAND_TYPE;
9197851SDana.Myers@Sun.COM         break;
9207851SDana.Myers@Sun.COM     }
9217851SDana.Myers@Sun.COM 
9227851SDana.Myers@Sun.COM     return_ACPI_STATUS (Status);
9237851SDana.Myers@Sun.COM }
9247851SDana.Myers@Sun.COM 
9257851SDana.Myers@Sun.COM 
926