1 /******************************************************************************
3 * Module Name: aslbtypes - Support for bitfield types
5 *****************************************************************************/
7 /******************************************************************************
11 * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
12 * All rights reserved.
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
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
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;
37 * The above copyright and patent license is granted only if the following
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.
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
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
72 * 3.4. Intel retains all right, title, and interest in and to the Original
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.
80 * 4. Disclaimer and Export Compliance
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
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
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.
114 *****************************************************************************/
117 #include "aslcompiler.h"
118 #include "aslcompiler.y.h"
122 #define _COMPONENT ACPI_COMPILER
123 ACPI_MODULE_NAME ("aslbtypes")
125 /* Local prototypes */
132 /*******************************************************************************
134 * FUNCTION: AnMapArgTypeToBtype
136 * PARAMETERS: ArgType - The ARGI required type(s) for this
137 * argument, from the opcode info table
139 * RETURN: The corresponding Bit-encoded types
141 * DESCRIPTION: Convert an encoded ARGI required argument type code into a
142 * bitfield type code. Implements the implicit source conversion
145 ******************************************************************************/
148 AnMapArgTypeToBtype (
158 return (ACPI_BTYPE_OBJECTS_AND_REFS);
161 return (ACPI_BTYPE_PACKAGE);
164 return (ACPI_BTYPE_EVENT);
167 return (ACPI_BTYPE_MUTEX);
171 * DDBHandleObject := SuperName
172 * ACPI_BTYPE_REFERENCE: Index reference as parameter of Load/Unload
174 return (ACPI_BTYPE_DDB_HANDLE | ACPI_BTYPE_REFERENCE);
176 /* Interchangeable types */
178 * Source conversion rules:
179 * Integer, String, and Buffer are all interchangeable
184 case ARGI_BUFFER_OR_STRING:
185 case ARGI_COMPUTEDATA:
186 return (ACPI_BTYPE_COMPUTE_DATA);
190 case ARGI_INTEGER_REF:
191 return (ACPI_BTYPE_INTEGER);
193 case ARGI_OBJECT_REF:
194 return (ACPI_BTYPE_ALL_OBJECTS);
196 case ARGI_DEVICE_REF:
197 return (ACPI_BTYPE_DEVICE_OBJECTS);
200 return (ACPI_BTYPE_REFERENCE);
203 case ARGI_FIXED_TARGET:
204 case ARGI_SIMPLE_TARGET:
205 return (ACPI_BTYPE_OBJECTS_AND_REFS);
209 case ARGI_DATAOBJECT:
212 * Buffer, string, package or reference to a Op -
213 * Used only by SizeOf operator
215 return (ACPI_BTYPE_STRING | ACPI_BTYPE_BUFFER |
216 ACPI_BTYPE_PACKAGE | ACPI_BTYPE_REFERENCE);
218 case ARGI_COMPLEXOBJ:
220 /* Buffer, String, or package */
222 return (ACPI_BTYPE_STRING | ACPI_BTYPE_BUFFER | ACPI_BTYPE_PACKAGE);
224 case ARGI_REF_OR_STRING:
225 return (ACPI_BTYPE_STRING | ACPI_BTYPE_REFERENCE);
227 case ARGI_REGION_OR_BUFFER:
229 /* Used by Load() only. Allow buffers in addition to regions/fields */
231 return (ACPI_BTYPE_REGION | ACPI_BTYPE_BUFFER | ACPI_BTYPE_FIELD_UNIT);
233 case ARGI_DATAREFOBJ:
234 return (ACPI_BTYPE_INTEGER |ACPI_BTYPE_STRING | ACPI_BTYPE_BUFFER |
235 ACPI_BTYPE_PACKAGE | ACPI_BTYPE_REFERENCE | ACPI_BTYPE_DDB_HANDLE);
241 return (ACPI_BTYPE_OBJECTS_AND_REFS);
245 /*******************************************************************************
247 * FUNCTION: AnMapEtypeToBtype
249 * PARAMETERS: Etype - Encoded ACPI Type
251 * RETURN: Btype corresponding to the Etype
253 * DESCRIPTION: Convert an encoded ACPI type to a bitfield type applying the
254 * operand conversion rules. In other words, returns the type(s)
255 * this Etype is implicitly converted to during interpretation.
257 ******************************************************************************/
265 if (Etype == ACPI_TYPE_ANY)
267 return (ACPI_BTYPE_OBJECTS_AND_REFS);
270 /* Try the standard ACPI data types */
272 if (Etype <= ACPI_TYPE_EXTERNAL_MAX)
275 * This switch statement implements the allowed operand conversion
276 * rules as per the "ASL Data Types" section of the ACPI
281 case ACPI_TYPE_INTEGER:
282 return (ACPI_BTYPE_COMPUTE_DATA | ACPI_BTYPE_DDB_HANDLE);
284 case ACPI_TYPE_STRING:
285 case ACPI_TYPE_BUFFER:
286 return (ACPI_BTYPE_COMPUTE_DATA);
288 case ACPI_TYPE_PACKAGE:
289 return (ACPI_BTYPE_PACKAGE);
291 case ACPI_TYPE_FIELD_UNIT:
292 return (ACPI_BTYPE_COMPUTE_DATA | ACPI_BTYPE_FIELD_UNIT);
294 case ACPI_TYPE_BUFFER_FIELD:
295 return (ACPI_BTYPE_COMPUTE_DATA | ACPI_BTYPE_BUFFER_FIELD);
297 case ACPI_TYPE_DDB_HANDLE:
298 return (ACPI_BTYPE_INTEGER | ACPI_BTYPE_DDB_HANDLE);
300 case ACPI_BTYPE_DEBUG_OBJECT:
302 /* Cannot be used as a source operand */
307 return (1 << (Etype - 1));
311 /* Try the internal data types */
315 case ACPI_TYPE_LOCAL_REGION_FIELD:
316 case ACPI_TYPE_LOCAL_BANK_FIELD:
317 case ACPI_TYPE_LOCAL_INDEX_FIELD:
319 /* Named fields can be either Integer/Buffer/String */
321 return (ACPI_BTYPE_COMPUTE_DATA | ACPI_BTYPE_FIELD_UNIT);
323 case ACPI_TYPE_LOCAL_ALIAS:
325 return (ACPI_BTYPE_INTEGER);
328 case ACPI_TYPE_LOCAL_RESOURCE:
329 case ACPI_TYPE_LOCAL_RESOURCE_FIELD:
331 return (ACPI_BTYPE_REFERENCE);
334 printf ("Unhandled encoded type: %X\n", Etype);
340 /*******************************************************************************
342 * FUNCTION: AnFormatBtype
344 * PARAMETERS: Btype - Bitfield of ACPI types
345 * Buffer - Where to put the ascii string
349 * DESCRIPTION: Convert a Btype to a string of ACPI types
351 ******************************************************************************/
359 BOOLEAN First = TRUE;
366 strcat (Buffer, "NoReturnValue");
370 for (Type = 1; Type <= ACPI_TYPE_EXTERNAL_MAX; Type++)
372 if (Btype & 0x00000001)
376 strcat (Buffer, "|");
379 strcat (Buffer, AcpiUtGetTypeName (Type));
384 if (Btype & 0x00000001)
388 strcat (Buffer, "|");
391 strcat (Buffer, "Reference");
395 if (Btype & 0x00000001)
399 strcat (Buffer, "|");
402 strcat (Buffer, "Resource");
407 /*******************************************************************************
409 * FUNCTION: AnGetBtype
411 * PARAMETERS: Op - Parse node whose type will be returned.
413 * RETURN: The Btype associated with the Op.
415 * DESCRIPTION: Get the (bitfield) ACPI type associated with the parse node.
416 * Handles the case where the node is a name or method call and
417 * the actual type must be obtained from the namespace node.
419 ******************************************************************************/
423 ACPI_PARSE_OBJECT *Op)
425 ACPI_NAMESPACE_NODE *Node;
426 ACPI_PARSE_OBJECT *ReferencedNode;
427 UINT32 ThisNodeBtype = 0;
430 if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG) ||
431 (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING) ||
432 (Op->Asl.ParseOpcode == PARSEOP_METHODCALL))
437 DbgPrint (ASL_DEBUG_OUTPUT,
438 "No attached Nsnode: [%s] at line %u name [%s], ignoring typecheck\n",
439 Op->Asl.ParseOpName, Op->Asl.LineNumber,
440 Op->Asl.ExternalName);
441 return (ACPI_UINT32_MAX);
444 ThisNodeBtype = AnMapEtypeToBtype (Node->Type);
447 AslError (ASL_ERROR, ASL_MSG_COMPILER_INTERNAL, Op,
448 "could not map type");
452 * Since it was a named reference, enable the
455 ThisNodeBtype |= ACPI_BTYPE_REFERENCE;
457 if (Op->Asl.ParseOpcode == PARSEOP_METHODCALL)
459 ReferencedNode = Node->Op;
462 /* Check for an internal method */
464 if (AnIsInternalMethod (Op))
466 return (AnGetInternalMethodReturnType (Op));
469 AslError (ASL_ERROR, ASL_MSG_COMPILER_INTERNAL, Op,
471 return (ACPI_UINT32_MAX);
474 if (ReferencedNode->Asl.CompileFlags & NODE_METHOD_TYPED)
476 ThisNodeBtype = ReferencedNode->Asl.AcpiBtype;
480 return (ACPI_UINT32_MAX -1);
486 ThisNodeBtype = Op->Asl.AcpiBtype;
489 return (ThisNodeBtype);
493 /*******************************************************************************
495 * FUNCTION: AnMapObjTypeToBtype
497 * PARAMETERS: Op - A parse node
501 * DESCRIPTION: Map object to the associated "Btype"
503 ******************************************************************************/
506 AnMapObjTypeToBtype (
507 ACPI_PARSE_OBJECT *Op)
510 switch (Op->Asl.ParseOpcode)
512 case PARSEOP_OBJECTTYPE_BFF: /* "BuffFieldObj" */
513 return (ACPI_BTYPE_BUFFER_FIELD);
515 case PARSEOP_OBJECTTYPE_BUF: /* "BuffObj" */
516 return (ACPI_BTYPE_BUFFER);
518 case PARSEOP_OBJECTTYPE_DDB: /* "DDBHandleObj" */
519 return (ACPI_BTYPE_DDB_HANDLE);
521 case PARSEOP_OBJECTTYPE_DEV: /* "DeviceObj" */
522 return (ACPI_BTYPE_DEVICE);
524 case PARSEOP_OBJECTTYPE_EVT: /* "EventObj" */
525 return (ACPI_BTYPE_EVENT);
527 case PARSEOP_OBJECTTYPE_FLD: /* "FieldUnitObj" */
528 return (ACPI_BTYPE_FIELD_UNIT);
530 case PARSEOP_OBJECTTYPE_INT: /* "IntObj" */
531 return (ACPI_BTYPE_INTEGER);
533 case PARSEOP_OBJECTTYPE_MTH: /* "MethodObj" */
534 return (ACPI_BTYPE_METHOD);
536 case PARSEOP_OBJECTTYPE_MTX: /* "MutexObj" */
537 return (ACPI_BTYPE_MUTEX);
539 case PARSEOP_OBJECTTYPE_OPR: /* "OpRegionObj" */
540 return (ACPI_BTYPE_REGION);
542 case PARSEOP_OBJECTTYPE_PKG: /* "PkgObj" */
543 return (ACPI_BTYPE_PACKAGE);
545 case PARSEOP_OBJECTTYPE_POW: /* "PowerResObj" */
546 return (ACPI_BTYPE_POWER);
548 case PARSEOP_OBJECTTYPE_STR: /* "StrObj" */
549 return (ACPI_BTYPE_STRING);
551 case PARSEOP_OBJECTTYPE_THZ: /* "ThermalZoneObj" */
552 return (ACPI_BTYPE_THERMAL);
554 case PARSEOP_OBJECTTYPE_UNK: /* "UnknownObj" */
555 return (ACPI_BTYPE_OBJECTS_AND_REFS);
563 #ifdef ACPI_OBSOLETE_FUNCTIONS
564 /*******************************************************************************
566 * FUNCTION: AnMapBtypeToEtype
568 * PARAMETERS: Btype - Bitfield of ACPI types
570 * RETURN: The Etype corresponding the the Btype
572 * DESCRIPTION: Convert a bitfield type to an encoded type
574 ******************************************************************************/
590 for (i = 1; i < Btype; i *= 2)