The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/acpica/compiler/aslbtypes.c

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    1 /******************************************************************************
    2  *
    3  * Module Name: aslbtypes - Support for bitfield types
    4  *
    5  *****************************************************************************/
    6 
    7 /******************************************************************************
    8  *
    9  * 1. Copyright Notice
   10  *
   11  * Some or all of this work - Copyright (c) 1999 - 2022, Intel Corp.
   12  * All rights reserved.
   13  *
   14  * 2. License
   15  *
   16  * 2.1. This is your license from Intel Corp. under its intellectual property
   17  * rights. You may have additional license terms from the party that provided
   18  * you this software, covering your right to use that party's intellectual
   19  * property rights.
   20  *
   21  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
   22  * copy of the source code appearing in this file ("Covered Code") an
   23  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
   24  * base code distributed originally by Intel ("Original Intel Code") to copy,
   25  * make derivatives, distribute, use and display any portion of the Covered
   26  * Code in any form, with the right to sublicense such rights; and
   27  *
   28  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
   29  * license (with the right to sublicense), under only those claims of Intel
   30  * patents that are infringed by the Original Intel Code, to make, use, sell,
   31  * offer to sell, and import the Covered Code and derivative works thereof
   32  * solely to the minimum extent necessary to exercise the above copyright
   33  * license, and in no event shall the patent license extend to any additions
   34  * to or modifications of the Original Intel Code. No other license or right
   35  * is granted directly or by implication, estoppel or otherwise;
   36  *
   37  * The above copyright and patent license is granted only if the following
   38  * conditions are met:
   39  *
   40  * 3. Conditions
   41  *
   42  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
   43  * Redistribution of source code of any substantial portion of the Covered
   44  * Code or modification with rights to further distribute source must include
   45  * the above Copyright Notice, the above License, this list of Conditions,
   46  * and the following Disclaimer and Export Compliance provision. In addition,
   47  * Licensee must cause all Covered Code to which Licensee contributes to
   48  * contain a file documenting the changes Licensee made to create that Covered
   49  * Code and the date of any change. Licensee must include in that file the
   50  * documentation of any changes made by any predecessor Licensee. Licensee
   51  * must include a prominent statement that the modification is derived,
   52  * directly or indirectly, from Original Intel Code.
   53  *
   54  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
   55  * Redistribution of source code of any substantial portion of the Covered
   56  * Code or modification without rights to further distribute source must
   57  * include the following Disclaimer and Export Compliance provision in the
   58  * documentation and/or other materials provided with distribution. In
   59  * addition, Licensee may not authorize further sublicense of source of any
   60  * portion of the Covered Code, and must include terms to the effect that the
   61  * license from Licensee to its licensee is limited to the intellectual
   62  * property embodied in the software Licensee provides to its licensee, and
   63  * not to intellectual property embodied in modifications its licensee may
   64  * make.
   65  *
   66  * 3.3. Redistribution of Executable. Redistribution in executable form of any
   67  * substantial portion of the Covered Code or modification must reproduce the
   68  * above Copyright Notice, and the following Disclaimer and Export Compliance
   69  * provision in the documentation and/or other materials provided with the
   70  * distribution.
   71  *
   72  * 3.4. Intel retains all right, title, and interest in and to the Original
   73  * Intel Code.
   74  *
   75  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
   76  * Intel shall be used in advertising or otherwise to promote the sale, use or
   77  * other dealings in products derived from or relating to the Covered Code
   78  * without prior written authorization from Intel.
   79  *
   80  * 4. Disclaimer and Export Compliance
   81  *
   82  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
   83  * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
   84  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
   85  * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
   86  * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
   87  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
   88  * PARTICULAR PURPOSE.
   89  *
   90  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
   91  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
   92  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
   93  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
   94  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
   95  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
   96  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
   97  * LIMITED REMEDY.
   98  *
   99  * 4.3. Licensee shall not export, either directly or indirectly, any of this
  100  * software or system incorporating such software without first obtaining any
  101  * required license or other approval from the U. S. Department of Commerce or
  102  * any other agency or department of the United States Government. In the
  103  * event Licensee exports any such software from the United States or
  104  * re-exports any such software from a foreign destination, Licensee shall
  105  * ensure that the distribution and export/re-export of the software is in
  106  * compliance with all laws, regulations, orders, or other restrictions of the
  107  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
  108  * any of its subsidiaries will export/re-export any technical data, process,
  109  * software, or service, directly or indirectly, to any country for which the
  110  * United States government or any agency thereof requires an export license,
  111  * other governmental approval, or letter of assurance, without first obtaining
  112  * such license, approval or letter.
  113  *
  114  *****************************************************************************
  115  *
  116  * Alternatively, you may choose to be licensed under the terms of the
  117  * following license:
  118  *
  119  * Redistribution and use in source and binary forms, with or without
  120  * modification, are permitted provided that the following conditions
  121  * are met:
  122  * 1. Redistributions of source code must retain the above copyright
  123  *    notice, this list of conditions, and the following disclaimer,
  124  *    without modification.
  125  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  126  *    substantially similar to the "NO WARRANTY" disclaimer below
  127  *    ("Disclaimer") and any redistribution must be conditioned upon
  128  *    including a substantially similar Disclaimer requirement for further
  129  *    binary redistribution.
  130  * 3. Neither the names of the above-listed copyright holders nor the names
  131  *    of any contributors may be used to endorse or promote products derived
  132  *    from this software without specific prior written permission.
  133  *
  134  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  135  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  136  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  137  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  138  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  139  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  140  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  141  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  142  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  143  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  144  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  145  *
  146  * Alternatively, you may choose to be licensed under the terms of the
  147  * GNU General Public License ("GPL") version 2 as published by the Free
  148  * Software Foundation.
  149  *
  150  *****************************************************************************/
  151 
  152 #include <contrib/dev/acpica/compiler/aslcompiler.h>
  153 #include "aslcompiler.y.h"
  154 #include <contrib/dev/acpica/include/amlcode.h>
  155 
  156 
  157 #define _COMPONENT          ACPI_COMPILER
  158         ACPI_MODULE_NAME    ("aslbtypes")
  159 
  160 /* Local prototypes */
  161 
  162 static UINT32
  163 AnMapEtypeToBtype (
  164     UINT32                  Etype);
  165 
  166 
  167 /*******************************************************************************
  168  *
  169  * FUNCTION:    AnMapArgTypeToBtype
  170  *
  171  * PARAMETERS:  ArgType             - The ARGI required type(s) for this
  172  *                                    argument, from the opcode info table
  173  *
  174  * RETURN:      The corresponding Bit-encoded types
  175  *
  176  * DESCRIPTION: Convert an encoded ARGI required argument type code into a
  177  *              bitfield type code. Implements the implicit source conversion
  178  *              rules.
  179  *
  180  ******************************************************************************/
  181 
  182 UINT32
  183 AnMapArgTypeToBtype (
  184     UINT32                  ArgType)
  185 {
  186 
  187     switch (ArgType)
  188     {
  189     /* Simple types */
  190 
  191     case ARGI_ANYTYPE:
  192 
  193         return (ACPI_BTYPE_OBJECTS_AND_REFS);
  194 
  195     case ARGI_PACKAGE:
  196 
  197         return (ACPI_BTYPE_PACKAGE);
  198 
  199     case ARGI_EVENT:
  200 
  201         return (ACPI_BTYPE_EVENT);
  202 
  203     case ARGI_MUTEX:
  204 
  205         return (ACPI_BTYPE_MUTEX);
  206 
  207     case ARGI_DDBHANDLE:
  208         /*
  209          * DDBHandleObject := SuperName
  210          * ACPI_BTYPE_REFERENCE_OBJECT:
  211          *      Index reference as parameter of Load/Unload
  212          */
  213         return (ACPI_BTYPE_DDB_HANDLE | ACPI_BTYPE_REFERENCE_OBJECT);
  214 
  215     /* Interchangeable types */
  216     /*
  217      * Source conversion rules:
  218      * Integer, String, and Buffer are all interchangeable
  219      */
  220     case ARGI_INTEGER:
  221     case ARGI_STRING:
  222     case ARGI_BUFFER:
  223     case ARGI_BUFFER_OR_STRING:
  224     case ARGI_COMPUTEDATA:
  225 
  226         return (ACPI_BTYPE_COMPUTE_DATA);
  227 
  228     /* References */
  229 
  230     case ARGI_INTEGER_REF:
  231 
  232         return (ACPI_BTYPE_INTEGER);
  233 
  234     case ARGI_OBJECT_REF:
  235 
  236         return (ACPI_BTYPE_ALL_OBJECTS);
  237 
  238     case ARGI_DEVICE_REF:
  239 
  240         return (ACPI_BTYPE_DEVICE_OBJECTS);
  241 
  242     case ARGI_REFERENCE:
  243 
  244         return (ACPI_BTYPE_NAMED_REFERENCE); /* Name or Namestring */
  245 
  246     case ARGI_TARGETREF:
  247 
  248         /*
  249          * Target operand for most math and logic operators.
  250          * Package objects not allowed as target.
  251          */
  252         return (ACPI_BTYPE_COMPUTE_DATA | ACPI_BTYPE_DEBUG_OBJECT |
  253             ACPI_BTYPE_REFERENCE_OBJECT);
  254 
  255     case ARGI_STORE_TARGET:
  256 
  257         /* Special target for Store(), includes packages */
  258 
  259         return (ACPI_BTYPE_DATA | ACPI_BTYPE_DEBUG_OBJECT |
  260             ACPI_BTYPE_REFERENCE_OBJECT);
  261 
  262     case ARGI_FIXED_TARGET:
  263     case ARGI_SIMPLE_TARGET:
  264 
  265         return (ACPI_BTYPE_OBJECTS_AND_REFS);
  266 
  267     /* Complex types */
  268 
  269     case ARGI_DATAOBJECT:
  270         /*
  271          * Buffer, string, package or reference to a Op -
  272          * Used only by SizeOf operator
  273          */
  274         return (ACPI_BTYPE_STRING | ACPI_BTYPE_BUFFER |
  275             ACPI_BTYPE_PACKAGE | ACPI_BTYPE_REFERENCE_OBJECT);
  276 
  277     case ARGI_COMPLEXOBJ:
  278 
  279         /* Buffer, String, or package */
  280 
  281         return (ACPI_BTYPE_STRING | ACPI_BTYPE_BUFFER |
  282             ACPI_BTYPE_PACKAGE);
  283 
  284     case ARGI_REF_OR_STRING:
  285 
  286         /* Used by DeRefOf operator only */
  287 
  288         return (ACPI_BTYPE_STRING | ACPI_BTYPE_REFERENCE_OBJECT);
  289 
  290     case ARGI_REGION_OR_BUFFER:
  291 
  292         /* Used by Load() only. Allow buffers in addition to regions/fields */
  293 
  294         return (ACPI_BTYPE_REGION | ACPI_BTYPE_BUFFER |
  295             ACPI_BTYPE_FIELD_UNIT);
  296 
  297     case ARGI_DATAREFOBJ:
  298 
  299         /* Used by Store() only, as the source operand */
  300 
  301         return (ACPI_BTYPE_DATA_REFERENCE | ACPI_BTYPE_REFERENCE_OBJECT);
  302 
  303     default:
  304 
  305         break;
  306     }
  307 
  308     return (ACPI_BTYPE_OBJECTS_AND_REFS);
  309 }
  310 
  311 
  312 /*******************************************************************************
  313  *
  314  * FUNCTION:    AnMapEtypeToBtype
  315  *
  316  * PARAMETERS:  Etype               - Encoded ACPI Type
  317  *
  318  * RETURN:      Btype corresponding to the Etype
  319  *
  320  * DESCRIPTION: Convert an encoded ACPI type to a bitfield type applying the
  321  *              operand conversion rules. In other words, returns the type(s)
  322  *              this Etype is implicitly converted to during interpretation.
  323  *
  324  ******************************************************************************/
  325 
  326 static UINT32
  327 AnMapEtypeToBtype (
  328     UINT32                  Etype)
  329 {
  330 
  331     if (Etype == ACPI_TYPE_ANY)
  332     {
  333         return (ACPI_BTYPE_OBJECTS_AND_REFS);
  334     }
  335 
  336     /* Try the standard ACPI data types */
  337 
  338     if (Etype <= ACPI_TYPE_EXTERNAL_MAX)
  339     {
  340         /*
  341          * This switch statement implements the allowed operand conversion
  342          * rules as per the "ASL Data Types" section of the ACPI
  343          * specification.
  344          */
  345         switch (Etype)
  346         {
  347         case ACPI_TYPE_INTEGER:
  348 
  349             return (ACPI_BTYPE_COMPUTE_DATA | ACPI_BTYPE_DDB_HANDLE);
  350 
  351         case ACPI_TYPE_STRING:
  352         case ACPI_TYPE_BUFFER:
  353 
  354             return (ACPI_BTYPE_COMPUTE_DATA);
  355 
  356         case ACPI_TYPE_PACKAGE:
  357 
  358             return (ACPI_BTYPE_PACKAGE);
  359 
  360         case ACPI_TYPE_FIELD_UNIT:
  361 
  362             return (ACPI_BTYPE_COMPUTE_DATA | ACPI_BTYPE_FIELD_UNIT);
  363 
  364         case ACPI_TYPE_BUFFER_FIELD:
  365 
  366             return (ACPI_BTYPE_COMPUTE_DATA | ACPI_BTYPE_BUFFER_FIELD);
  367 
  368         case ACPI_TYPE_DDB_HANDLE:
  369 
  370             return (ACPI_BTYPE_INTEGER | ACPI_BTYPE_DDB_HANDLE);
  371 
  372         case ACPI_TYPE_DEBUG_OBJECT:
  373 
  374             /* Cannot be used as a source operand */
  375 
  376             return (0);
  377 
  378         default:
  379 
  380             return (1 << (Etype - 1));
  381         }
  382     }
  383 
  384     /* Try the internal data types */
  385 
  386     switch (Etype)
  387     {
  388     case ACPI_TYPE_LOCAL_REGION_FIELD:
  389     case ACPI_TYPE_LOCAL_BANK_FIELD:
  390     case ACPI_TYPE_LOCAL_INDEX_FIELD:
  391 
  392         /* Named fields can be either Integer/Buffer/String */
  393 
  394         return (ACPI_BTYPE_COMPUTE_DATA | ACPI_BTYPE_FIELD_UNIT);
  395 
  396     case ACPI_TYPE_LOCAL_ALIAS:
  397 
  398         return (ACPI_BTYPE_INTEGER);
  399 
  400 
  401     case ACPI_TYPE_LOCAL_RESOURCE:
  402     case ACPI_TYPE_LOCAL_RESOURCE_FIELD:
  403 
  404         return (ACPI_BTYPE_REFERENCE_OBJECT);
  405 
  406     default:
  407 
  408         printf ("Unhandled encoded type: %X\n", Etype);
  409         return (0);
  410     }
  411 }
  412 
  413 
  414 /*******************************************************************************
  415  *
  416  * FUNCTION:    AnFormatBtype
  417  *
  418  * PARAMETERS:  Btype               - Bitfield of ACPI types
  419  *              Buffer              - Where to put the ascii string
  420  *
  421  * RETURN:      None.
  422  *
  423  * DESCRIPTION: Convert a Btype to a string of ACPI types
  424  *
  425  ******************************************************************************/
  426 
  427 void
  428 AnFormatBtype (
  429     char                    *Buffer,
  430     UINT32                  Btype)
  431 {
  432     UINT32                  Type;
  433     BOOLEAN                 First = TRUE;
  434 
  435 
  436     *Buffer = 0;
  437     if (Btype == 0)
  438     {
  439         strcat (Buffer, "NoReturnValue");
  440         return;
  441     }
  442 
  443     for (Type = 1; Type <= ACPI_TYPE_EXTERNAL_MAX; Type++)
  444     {
  445         if (Btype & 0x00000001)
  446         {
  447             if (!First)
  448             {
  449                 strcat (Buffer, "|");
  450             }
  451 
  452             First = FALSE;
  453             strcat (Buffer, AcpiUtGetTypeName (Type));
  454         }
  455         Btype >>= 1;
  456     }
  457 
  458     if (Btype & 0x00000001)
  459     {
  460         if (!First)
  461         {
  462             strcat (Buffer, "|");
  463         }
  464 
  465         First = FALSE;
  466         strcat (Buffer, "Reference");
  467     }
  468 
  469     Btype >>= 1;
  470     if (Btype & 0x00000001)
  471     {
  472         if (!First)
  473         {
  474             strcat (Buffer, "|");
  475         }
  476 
  477         strcat (Buffer, "Resource");
  478     }
  479 }
  480 
  481 
  482 /*******************************************************************************
  483  *
  484  * FUNCTION:    AnGetBtype
  485  *
  486  * PARAMETERS:  Op                  - Parse node whose type will be returned.
  487  *
  488  * RETURN:      The Btype associated with the Op.
  489  *
  490  * DESCRIPTION: Get the (bitfield) ACPI type associated with the parse node.
  491  *              Handles the case where the node is a name or method call and
  492  *              the actual type must be obtained from the namespace node.
  493  *
  494  ******************************************************************************/
  495 
  496 UINT32
  497 AnGetBtype (
  498     ACPI_PARSE_OBJECT       *Op)
  499 {
  500     ACPI_NAMESPACE_NODE     *Node;
  501     ACPI_PARSE_OBJECT       *ReferencedNode;
  502     UINT32                  ThisNodeBtype = 0;
  503 
  504 
  505     if (!Op)
  506     {
  507         AcpiOsPrintf ("Null Op in AnGetBtype\n");
  508         return (ACPI_UINT32_MAX);
  509     }
  510 
  511     if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG)     ||
  512         (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING)  ||
  513         (Op->Asl.ParseOpcode == PARSEOP_METHODCALL))
  514     {
  515         Node = Op->Asl.Node;
  516         if (!Node)
  517         {
  518             /* These are not expected to have a node at this time */
  519 
  520             if ((Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_CREATEWORDFIELD) ||
  521                 (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_CREATEDWORDFIELD) ||
  522                 (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_CREATEQWORDFIELD) ||
  523                 (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_CREATEBYTEFIELD) ||
  524                 (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_CREATEBITFIELD) ||
  525                 (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_CREATEFIELD)    ||
  526                 (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_CONDREFOF))
  527             {
  528                 return (ACPI_UINT32_MAX - 1);
  529             }
  530 
  531             DbgPrint (ASL_DEBUG_OUTPUT,
  532                 "No attached Nsnode: [%s] at line %u name [%s], "
  533                 "ignoring typecheck. Parent [%s]\n",
  534                 Op->Asl.ParseOpName, Op->Asl.LineNumber,
  535                 Op->Asl.ExternalName, Op->Asl.Parent->Asl.ParseOpName);
  536             return (ACPI_UINT32_MAX - 1);
  537         }
  538 
  539         ThisNodeBtype = AnMapEtypeToBtype (Node->Type);
  540         if (!ThisNodeBtype)
  541         {
  542             AslError (ASL_ERROR, ASL_MSG_COMPILER_INTERNAL, Op,
  543                 "could not map type");
  544         }
  545 
  546         if (Op->Asl.ParseOpcode == PARSEOP_METHODCALL)
  547         {
  548             ReferencedNode = Node->Op;
  549             if (!ReferencedNode)
  550             {
  551                 /* Check for an internal method */
  552 
  553                 if (AnIsInternalMethod (Op))
  554                 {
  555                     return (AnGetInternalMethodReturnType (Op));
  556                 }
  557 
  558                 AslError (ASL_ERROR, ASL_MSG_COMPILER_INTERNAL, Op,
  559                     "null Op pointer");
  560                 return (ACPI_UINT32_MAX);
  561             }
  562 
  563             if (ReferencedNode->Asl.CompileFlags & OP_METHOD_TYPED)
  564             {
  565                 ThisNodeBtype = ReferencedNode->Asl.AcpiBtype;
  566             }
  567             else
  568             {
  569                 return (ACPI_UINT32_MAX -1);
  570             }
  571         }
  572     }
  573     else
  574     {
  575         ThisNodeBtype = Op->Asl.AcpiBtype;
  576     }
  577 
  578     return (ThisNodeBtype);
  579 }
  580 
  581 
  582 /*******************************************************************************
  583  *
  584  * FUNCTION:    AnMapObjTypeToBtype
  585  *
  586  * PARAMETERS:  Op                  - A parse node
  587  *
  588  * RETURN:      A Btype
  589  *
  590  * DESCRIPTION: Map object to the associated "Btype"
  591  *
  592  ******************************************************************************/
  593 
  594 UINT32
  595 AnMapObjTypeToBtype (
  596     ACPI_PARSE_OBJECT       *Op)
  597 {
  598 
  599     switch (Op->Asl.ParseOpcode)
  600     {
  601     case PARSEOP_OBJECTTYPE_BFF:        /* "BuffFieldObj" */
  602 
  603         return (ACPI_BTYPE_BUFFER_FIELD);
  604 
  605     case PARSEOP_OBJECTTYPE_BUF:        /* "BuffObj" */
  606 
  607         return (ACPI_BTYPE_BUFFER);
  608 
  609     case PARSEOP_OBJECTTYPE_DDB:        /* "DDBHandleObj" */
  610 
  611         return (ACPI_BTYPE_DDB_HANDLE);
  612 
  613     case PARSEOP_OBJECTTYPE_DEV:        /* "DeviceObj" */
  614 
  615         return (ACPI_BTYPE_DEVICE);
  616 
  617     case PARSEOP_OBJECTTYPE_EVT:        /* "EventObj" */
  618 
  619         return (ACPI_BTYPE_EVENT);
  620 
  621     case PARSEOP_OBJECTTYPE_FLD:        /* "FieldUnitObj" */
  622 
  623         return (ACPI_BTYPE_FIELD_UNIT);
  624 
  625     case PARSEOP_OBJECTTYPE_INT:        /* "IntObj" */
  626 
  627         return (ACPI_BTYPE_INTEGER);
  628 
  629     case PARSEOP_OBJECTTYPE_MTH:        /* "MethodObj" */
  630 
  631         return (ACPI_BTYPE_METHOD);
  632 
  633     case PARSEOP_OBJECTTYPE_MTX:        /* "MutexObj" */
  634 
  635         return (ACPI_BTYPE_MUTEX);
  636 
  637     case PARSEOP_OBJECTTYPE_OPR:        /* "OpRegionObj" */
  638 
  639         return (ACPI_BTYPE_REGION);
  640 
  641     case PARSEOP_OBJECTTYPE_PKG:        /* "PkgObj" */
  642 
  643         return (ACPI_BTYPE_PACKAGE);
  644 
  645     case PARSEOP_OBJECTTYPE_POW:        /* "PowerResObj" */
  646 
  647         return (ACPI_BTYPE_POWER);
  648 
  649     case PARSEOP_OBJECTTYPE_STR:        /* "StrObj" */
  650 
  651         return (ACPI_BTYPE_STRING);
  652 
  653     case PARSEOP_OBJECTTYPE_THZ:        /* "ThermalZoneObj" */
  654 
  655         return (ACPI_BTYPE_THERMAL);
  656 
  657     case PARSEOP_OBJECTTYPE_UNK:        /* "UnknownObj" */
  658 
  659         return (ACPI_BTYPE_OBJECTS_AND_REFS);
  660 
  661     default:
  662 
  663         return (0);
  664     }
  665 }
  666 
  667 
  668 #ifdef ACPI_OBSOLETE_FUNCTIONS
  669 /*******************************************************************************
  670  *
  671  * FUNCTION:    AnMapBtypeToEtype
  672  *
  673  * PARAMETERS:  Btype               - Bitfield of ACPI types
  674  *
  675  * RETURN:      The Etype corresponding the Btype
  676  *
  677  * DESCRIPTION: Convert a bitfield type to an encoded type
  678  *
  679  ******************************************************************************/
  680 
  681 UINT32
  682 AnMapBtypeToEtype (
  683     UINT32              Btype)
  684 {
  685     UINT32              i;
  686     UINT32              Etype;
  687 
  688 
  689     if (Btype == 0)
  690     {
  691         return (0);
  692     }
  693 
  694     Etype = 1;
  695     for (i = 1; i < Btype; i *= 2)
  696     {
  697         Etype++;
  698     }
  699 
  700     return (Etype);
  701 }
  702 #endif

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