Subversion Repositories Kolibri OS

Rev

Go to most recent revision | Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
1498 serge 1
/******************************************************************************
2
 *
3
 * Module Name: aslpredef - support for ACPI predefined names
4
 *
5
 *****************************************************************************/
6
 
7
/******************************************************************************
8
 *
9
 * 1. Copyright Notice
10
 *
11
 * Some or all of this work - Copyright (c) 1999 - 2010, 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
#define ACPI_CREATE_PREDEFINED_TABLE
117
 
118
#include "aslcompiler.h"
119
#include "aslcompiler.y.h"
120
#include "amlcode.h"
121
#include "acparser.h"
122
#include "acpredef.h"
123
 
124
 
125
#define _COMPONENT          ACPI_COMPILER
126
        ACPI_MODULE_NAME    ("aslpredef")
127
 
128
 
129
/* Local prototypes */
130
 
131
static UINT32
132
ApCheckForSpecialName (
133
    ACPI_PARSE_OBJECT       *Op,
134
    char                    *Name);
135
 
136
static void
137
ApCheckObjectType (
138
    ACPI_PARSE_OBJECT       *Op,
139
    UINT32                  ExpectedBtypes);
140
 
141
static void
142
ApGetExpectedTypes (
143
    char                    *Buffer,
144
    UINT32                  ExpectedBtypes);
145
 
146
 
147
/*
148
 * Names for the types that can be returned by the predefined objects.
149
 * Used for warning messages. Must be in the same order as the ACPI_RTYPEs
150
 */
151
static const char   *AcpiRtypeNames[] =
152
{
153
    "/Integer",
154
    "/String",
155
    "/Buffer",
156
    "/Package",
157
    "/Reference",
158
};
159
 
160
/*
161
 * Predefined names for use in Resource Descriptors. These names do not
162
 * appear in the global Predefined Name table (since these names never
163
 * appear in actual AML byte code, only in the original ASL)
164
 */
165
static const ACPI_PREDEFINED_INFO      ResourceNames[] = {
166
    {{"_ALN",     0,      0}},
167
    {{"_ASI",     0,      0}},
168
    {{"_ASZ",     0,      0}},
169
    {{"_ATT",     0,      0}},
170
    {{"_BAS",     0,      0}},
171
    {{"_BM_",     0,      0}},
172
    {{"_DEC",     0,      0}},
173
    {{"_GRA",     0,      0}},
174
    {{"_HE_",     0,      0}},
175
    {{"_INT",     0,      0}},
176
    {{"_LEN",     0,      0}},
177
    {{"_LL_",     0,      0}},
178
    {{"_MAF",     0,      0}},
179
    {{"_MAX",     0,      0}},
180
    {{"_MEM",     0,      0}},
181
    {{"_MIF",     0,      0}},
182
    {{"_MIN",     0,      0}},
183
    {{"_MTP",     0,      0}},
184
    {{"_RBO",     0,      0}},
185
    {{"_RBW",     0,      0}},
186
    {{"_RNG",     0,      0}},
187
    {{"_RT_",     0,      0}},  /* Acpi 3.0 */
188
    {{"_RW_",     0,      0}},
189
    {{"_SHR",     0,      0}},
190
    {{"_SIZ",     0,      0}},
191
    {{"_TRA",     0,      0}},
192
    {{"_TRS",     0,      0}},
193
    {{"_TSF",     0,      0}},  /* Acpi 3.0 */
194
    {{"_TTP",     0,      0}},
195
    {{"_TYP",     0,      0}},
196
    {{{0,0,0,0},  0,      0}}   /* Table terminator */
197
};
198
 
199
static const ACPI_PREDEFINED_INFO      ScopeNames[] = {
200
    {{"_SB_",     0,      0}},
201
    {{"_SI_",     0,      0}},
202
    {{"_TZ_",     0,      0}},
203
    {{{0,0,0,0},  0,      0}}   /* Table terminator */
204
};
205
 
206
 
207
/*******************************************************************************
208
 *
209
 * FUNCTION:    ApCheckForPredefinedMethod
210
 *
211
 * PARAMETERS:  Op              - A parse node of type "METHOD".
212
 *              MethodInfo      - Saved info about this method
213
 *
214
 * RETURN:      None
215
 *
216
 * DESCRIPTION: If method is a predefined name, check that the number of
217
 *              arguments and the return type (returns a value or not)
218
 *              is correct.
219
 *
220
 ******************************************************************************/
221
 
222
void
223
ApCheckForPredefinedMethod (
224
    ACPI_PARSE_OBJECT       *Op,
225
    ASL_METHOD_INFO         *MethodInfo)
226
{
227
    UINT32                  Index;
228
    UINT32                  RequiredArgsCurrent;
229
    UINT32                  RequiredArgsOld;
230
 
231
 
232
    /* Check for a match against the predefined name list */
233
 
234
    Index = ApCheckForPredefinedName (Op, Op->Asl.NameSeg);
235
 
236
    switch (Index)
237
    {
238
    case ACPI_NOT_RESERVED_NAME:        /* No underscore or _Txx or _xxx name not matched */
239
    case ACPI_PREDEFINED_NAME:          /* Resource Name or reserved scope name */
240
    case ACPI_COMPILER_RESERVED_NAME:   /* A _Txx that was not emitted by compiler */
241
 
242
        /* Just return, nothing to do */
243
        break;
244
 
245
 
246
    case ACPI_EVENT_RESERVED_NAME:      /* _Lxx/_Exx/_Wxx/_Qxx methods */
247
 
248
        Gbl_ReservedMethods++;
249
 
250
        /* NumArguments must be zero for all _Lxx/_Exx/_Wxx/_Qxx methods */
251
 
252
        if (MethodInfo->NumArguments != 0)
253
        {
254
            sprintf (MsgBuffer, "%s requires %u", Op->Asl.ExternalName, 0);
255
 
256
            AslError (ASL_WARNING, ASL_MSG_RESERVED_ARG_COUNT_HI, Op,
257
                MsgBuffer);
258
        }
259
        break;
260
 
261
 
262
    default:
263
        /*
264
         * Matched a predefined method name
265
         *
266
         * Validate the ASL-defined argument count. Allow two different legal
267
         * arg counts.
268
         */
269
        Gbl_ReservedMethods++;
270
 
271
        RequiredArgsCurrent = PredefinedNames[Index].Info.ParamCount & 0x0F;
272
        RequiredArgsOld = PredefinedNames[Index].Info.ParamCount >> 4;
273
 
274
        if ((MethodInfo->NumArguments != RequiredArgsCurrent) &&
275
            (MethodInfo->NumArguments != RequiredArgsOld))
276
        {
277
            sprintf (MsgBuffer, "%4.4s requires %u",
278
                PredefinedNames[Index].Info.Name, RequiredArgsCurrent);
279
 
280
            if (MethodInfo->NumArguments > RequiredArgsCurrent)
281
            {
282
                AslError (ASL_WARNING, ASL_MSG_RESERVED_ARG_COUNT_HI, Op,
283
                    MsgBuffer);
284
            }
285
            else
286
            {
287
                AslError (ASL_WARNING, ASL_MSG_RESERVED_ARG_COUNT_LO, Op,
288
                    MsgBuffer);
289
            }
290
        }
291
 
292
        /*
293
         * Check if method returns no value, but the predefined name is
294
         * required to return a value
295
         */
296
        if (MethodInfo->NumReturnNoValue &&
297
            PredefinedNames[Index].Info.ExpectedBtypes)
298
        {
299
            ApGetExpectedTypes (StringBuffer,
300
                PredefinedNames[Index].Info.ExpectedBtypes);
301
 
302
            sprintf (MsgBuffer, "%s required for %4.4s",
303
                StringBuffer, PredefinedNames[Index].Info.Name);
304
 
305
            AslError (ASL_WARNING, ASL_MSG_RESERVED_RETURN_VALUE, Op,
306
                MsgBuffer);
307
        }
308
        break;
309
    }
310
}
311
 
312
 
313
/*******************************************************************************
314
 *
315
 * FUNCTION:    ApCheckPredefinedReturnValue
316
 *
317
 * PARAMETERS:  Op              - A parse node of type "RETURN".
318
 *              MethodInfo      - Saved info about this method
319
 *
320
 * RETURN:      None
321
 *
322
 * DESCRIPTION: If method is a predefined name, attempt to validate the return
323
 *              value. Only "static" types can be validated - a simple return
324
 *              of an integer/string/buffer/package or a named reference to
325
 *              a static object. Values such as a Localx or Argx or a control
326
 *              method invocation are not checked.
327
 *
328
 ******************************************************************************/
329
 
330
void
331
ApCheckPredefinedReturnValue (
332
    ACPI_PARSE_OBJECT       *Op,
333
    ASL_METHOD_INFO         *MethodInfo)
334
{
335
    UINT32                  Index;
336
    ACPI_PARSE_OBJECT       *ReturnValueOp;
337
 
338
 
339
    /* Check parent method for a match against the predefined name list */
340
 
341
    Index = ApCheckForPredefinedName (MethodInfo->Op,
342
                MethodInfo->Op->Asl.NameSeg);
343
 
344
    switch (Index)
345
    {
346
    case ACPI_NOT_RESERVED_NAME:        /* No underscore or _Txx or _xxx name not matched */
347
    case ACPI_PREDEFINED_NAME:          /* Resource Name or reserved scope name */
348
    case ACPI_COMPILER_RESERVED_NAME:   /* A _Txx that was not emitted by compiler */
349
    case ACPI_EVENT_RESERVED_NAME:      /* _Lxx/_Exx/_Wxx/_Qxx methods */
350
 
351
        /* Just return, nothing to do */
352
        return;
353
 
354
    default: /* A standard predefined ACPI name */
355
 
356
        /* Exit if no return value expected */
357
 
358
        if (!PredefinedNames[Index].Info.ExpectedBtypes)
359
        {
360
            return;
361
        }
362
 
363
        /* Get the object returned, it is the next argument */
364
 
365
        ReturnValueOp = Op->Asl.Child;
366
        switch (ReturnValueOp->Asl.ParseOpcode)
367
        {
368
        case PARSEOP_ZERO:
369
        case PARSEOP_ONE:
370
        case PARSEOP_ONES:
371
        case PARSEOP_INTEGER:
372
        case PARSEOP_STRING_LITERAL:
373
        case PARSEOP_BUFFER:
374
        case PARSEOP_PACKAGE:
375
 
376
            /* Static data return object - check against expected type */
377
 
378
            ApCheckObjectType (ReturnValueOp,
379
                PredefinedNames[Index].Info.ExpectedBtypes);
380
            break;
381
 
382
        default:
383
 
384
            /*
385
             * All other ops are very difficult or impossible to typecheck at
386
             * compile time. These include all Localx, Argx, and method
387
             * invocations. Also, NAMESEG and NAMESTRING because the type of
388
             * any named object can be changed at runtime (for example,
389
             * CopyObject will change the type of the target object.)
390
             */
391
            break;
392
        }
393
    }
394
}
395
 
396
 
397
/*******************************************************************************
398
 *
399
 * FUNCTION:    ApCheckForPredefinedObject
400
 *
401
 * PARAMETERS:  Op              - A parse node
402
 *              Name            - The ACPI name to be checked
403
 *
404
 * RETURN:      None
405
 *
406
 * DESCRIPTION: Check for a predefined name for a static object (created via
407
 *              the ASL Name operator). If it is a predefined ACPI name, ensure
408
 *              that the name does not require any arguments (which would
409
 *              require a control method implemenation of the name), and that
410
 *              the type of the object is one of the expected types for the
411
 *              predefined name.
412
 *
413
 ******************************************************************************/
414
 
415
void
416
ApCheckForPredefinedObject (
417
    ACPI_PARSE_OBJECT       *Op,
418
    char                    *Name)
419
{
420
    UINT32                  Index;
421
 
422
 
423
    /*
424
     * Check for a real predefined name -- not a resource descriptor name
425
     * or a predefined scope name
426
     */
427
    Index = ApCheckForPredefinedName (Op, Name);
428
 
429
    switch (Index)
430
    {
431
    case ACPI_NOT_RESERVED_NAME:        /* No underscore or _Txx or _xxx name not matched */
432
    case ACPI_PREDEFINED_NAME:          /* Resource Name or reserved scope name */
433
    case ACPI_COMPILER_RESERVED_NAME:   /* A _Txx that was not emitted by compiler */
434
 
435
        /* Nothing to do */
436
        return;
437
 
438
    case ACPI_EVENT_RESERVED_NAME:      /* _Lxx/_Exx/_Wxx/_Qxx methods */
439
 
440
        /*
441
         * These names must be control methods, by definition in ACPI spec.
442
         * Also because they are defined to return no value. None of them
443
         * require any arguments.
444
         */
445
        AslError (ASL_ERROR, ASL_MSG_RESERVED_METHOD, Op,
446
            "with zero arguments");
447
        return;
448
 
449
    default: /* A standard predefined ACPI name */
450
 
451
        /*
452
         * If this predefined name requires input arguments, then
453
         * it must be implemented as a control method
454
         */
455
        if (PredefinedNames[Index].Info.ParamCount > 0)
456
        {
457
            AslError (ASL_ERROR, ASL_MSG_RESERVED_METHOD, Op,
458
                "with arguments");
459
            return;
460
        }
461
 
462
        /*
463
         * If no return value is expected from this predefined name, then
464
         * it follows that it must be implemented as a control method
465
         * (with zero args, because the args > 0 case was handled above)
466
         * Examples are: _DIS, _INI, _IRC, _OFF, _ON, _PSx
467
         */
468
        if (!PredefinedNames[Index].Info.ExpectedBtypes)
469
        {
470
            AslError (ASL_ERROR, ASL_MSG_RESERVED_METHOD, Op,
471
                "with zero arguments");
472
            return;
473
        }
474
 
475
        /* Typecheck the actual object, it is the next argument */
476
 
477
        ApCheckObjectType (Op->Asl.Child->Asl.Next,
478
            PredefinedNames[Index].Info.ExpectedBtypes);
479
        return;
480
    }
481
}
482
 
483
 
484
/*******************************************************************************
485
 *
486
 * FUNCTION:    ApCheckForPredefinedName
487
 *
488
 * PARAMETERS:  Op              - A parse node
489
 *              Name            - NameSeg to check
490
 *
491
 * RETURN:      None
492
 *
493
 * DESCRIPTION: Check a NameSeg against the reserved list.
494
 *
495
 ******************************************************************************/
496
 
497
UINT32
498
ApCheckForPredefinedName (
499
    ACPI_PARSE_OBJECT       *Op,
500
    char                    *Name)
501
{
502
    UINT32                  i;
503
 
504
 
505
    if (Name[0] == 0)
506
    {
507
        AcpiOsPrintf ("Found a null name, external = %s\n",
508
            Op->Asl.ExternalName);
509
    }
510
 
511
    /* All reserved names are prefixed with a single underscore */
512
 
513
    if (Name[0] != '_')
514
    {
515
        return (ACPI_NOT_RESERVED_NAME);
516
    }
517
 
518
    /* Check for a standard predefined method name */
519
 
520
    for (i = 0; PredefinedNames[i].Info.Name[0]; i++)
521
    {
522
        if (ACPI_COMPARE_NAME (Name, PredefinedNames[i].Info.Name))
523
        {
524
            /* Return index into predefined array */
525
            return (i);
526
        }
527
    }
528
 
529
    /* Check for resource names and predefined scope names */
530
 
531
    for (i = 0; ResourceNames[i].Info.Name[0]; i++)
532
    {
533
        if (ACPI_COMPARE_NAME (Name, ResourceNames[i].Info.Name))
534
        {
535
            return (ACPI_PREDEFINED_NAME);
536
        }
537
    }
538
 
539
    for (i = 0; ScopeNames[i].Info.Name[0]; i++)
540
    {
541
        if (ACPI_COMPARE_NAME (Name, ScopeNames[i].Info.Name))
542
        {
543
            return (ACPI_PREDEFINED_NAME);
544
        }
545
    }
546
 
547
    /* Check for _Lxx/_Exx/_Wxx/_Qxx/_T_x. Warning if unknown predefined name */
548
 
549
    return (ApCheckForSpecialName (Op, Name));
550
}
551
 
552
 
553
/*******************************************************************************
554
 *
555
 * FUNCTION:    ApCheckForSpecialName
556
 *
557
 * PARAMETERS:  Op              - A parse node
558
 *              Name            - NameSeg to check
559
 *
560
 * RETURN:      None
561
 *
562
 * DESCRIPTION: Check for the "special" predefined names -
563
 *              _Lxx, _Exx, _Qxx, _Wxx, and _T_x
564
 *
565
 ******************************************************************************/
566
 
567
static UINT32
568
ApCheckForSpecialName (
569
    ACPI_PARSE_OBJECT       *Op,
570
    char                    *Name)
571
{
572
 
573
    /*
574
     * Check for the "special" predefined names. We already know that the
575
     * first character is an underscore.
576
     *   GPE:  _Lxx
577
     *   GPE:  _Exx
578
     *   GPE:  _Wxx
579
     *   EC:   _Qxx
580
     */
581
    if ((Name[1] == 'L') ||
582
        (Name[1] == 'E') ||
583
        (Name[1] == 'W') ||
584
        (Name[1] == 'Q'))
585
    {
586
        /* The next two characters must be hex digits */
587
 
588
        if ((isxdigit ((int) Name[2])) &&
589
            (isxdigit ((int) Name[3])))
590
        {
591
            return (ACPI_EVENT_RESERVED_NAME);
592
        }
593
    }
594
 
595
    /* Check for the names reserved for the compiler itself: _T_x */
596
 
597
    else if ((Op->Asl.ExternalName[1] == 'T') &&
598
             (Op->Asl.ExternalName[2] == '_'))
599
    {
600
        /* Ignore if actually emitted by the compiler */
601
 
602
        if (Op->Asl.CompileFlags & NODE_COMPILER_EMITTED)
603
        {
604
            return (ACPI_NOT_RESERVED_NAME);
605
        }
606
 
607
        /*
608
         * Was not actually emitted by the compiler. This is a special case,
609
         * however. If the ASL code being compiled was the result of a
610
         * dissasembly, it may possibly contain valid compiler-emitted names
611
         * of the form "_T_x". We don't want to issue an error or even a
612
         * warning and force the user to manually change the names. So, we
613
         * will issue a remark instead.
614
         */
615
        AslError (ASL_REMARK, ASL_MSG_COMPILER_RESERVED, Op, Op->Asl.ExternalName);
616
        return (ACPI_COMPILER_RESERVED_NAME);
617
    }
618
 
619
    /*
620
     * The name didn't match any of the known predefined names. Flag it as a
621
     * warning, since the entire namespace starting with an underscore is
622
     * reserved by the ACPI spec.
623
     */
624
    AslError (ASL_WARNING, ASL_MSG_UNKNOWN_RESERVED_NAME, Op,
625
        Op->Asl.ExternalName);
626
 
627
    return (ACPI_NOT_RESERVED_NAME);
628
}
629
 
630
 
631
/*******************************************************************************
632
 *
633
 * FUNCTION:    ApCheckObjectType
634
 *
635
 * PARAMETERS:  Op              - Current parse node
636
 *              ExpectedBtypes  - Bitmap of expected return type(s)
637
 *
638
 * RETURN:      None
639
 *
640
 * DESCRIPTION: Check if the object type is one of the types that is expected
641
 *              by the predefined name. Only a limited number of object types
642
 *              can be returned by the predefined names.
643
 *
644
 ******************************************************************************/
645
 
646
static void
647
ApCheckObjectType (
648
    ACPI_PARSE_OBJECT       *Op,
649
    UINT32                  ExpectedBtypes)
650
{
651
    UINT32                  ReturnBtype;
652
 
653
 
654
    switch (Op->Asl.ParseOpcode)
655
    {
656
    case PARSEOP_ZERO:
657
    case PARSEOP_ONE:
658
    case PARSEOP_ONES:
659
    case PARSEOP_INTEGER:
660
        ReturnBtype = ACPI_RTYPE_INTEGER;
661
        break;
662
 
663
    case PARSEOP_BUFFER:
664
        ReturnBtype = ACPI_RTYPE_BUFFER;
665
        break;
666
 
667
    case PARSEOP_STRING_LITERAL:
668
        ReturnBtype = ACPI_RTYPE_STRING;
669
        break;
670
 
671
    case PARSEOP_PACKAGE:
672
        ReturnBtype = ACPI_RTYPE_PACKAGE;
673
        break;
674
 
675
    default:
676
        /* Not one of the supported object types */
677
 
678
        goto TypeErrorExit;
679
    }
680
 
681
    /* Exit if the object is one of the expected types */
682
 
683
    if (ReturnBtype & ExpectedBtypes)
684
    {
685
        return;
686
    }
687
 
688
 
689
TypeErrorExit:
690
 
691
    /* Format the expected types and emit an error message */
692
 
693
    ApGetExpectedTypes (StringBuffer, ExpectedBtypes);
694
 
695
    sprintf (MsgBuffer, "found %s, requires %s",
696
        UtGetOpName (Op->Asl.ParseOpcode), StringBuffer);
697
 
698
    AslError (ASL_ERROR, ASL_MSG_RESERVED_OPERAND_TYPE, Op,
699
        MsgBuffer);
700
}
701
 
702
 
703
/*******************************************************************************
704
 *
705
 * FUNCTION:    ApDisplayReservedNames
706
 *
707
 * PARAMETERS:  None
708
 *
709
 * RETURN:      None
710
 *
711
 * DESCRIPTION: Dump information about the ACPI predefined names and predefined
712
 *              resource descriptor names.
713
 *
714
 ******************************************************************************/
715
 
716
void
717
ApDisplayReservedNames (
718
    void)
719
{
720
    const ACPI_PREDEFINED_INFO  *ThisName;
721
    char                        TypeBuffer[48]; /* Room for 5 types */
722
    UINT32                      Count;
723
 
724
 
725
    /*
726
     * Predefined names/methods
727
     */
728
    printf ("\nPredefined Name Information\n\n");
729
 
730
    Count = 0;
731
    ThisName = PredefinedNames;
732
    while (ThisName->Info.Name[0])
733
    {
734
        printf ("%4.4s    Requires %u arguments, ",
735
            ThisName->Info.Name, ThisName->Info.ParamCount & 0x0F);
736
 
737
        if (ThisName->Info.ExpectedBtypes)
738
        {
739
            ApGetExpectedTypes (TypeBuffer, ThisName->Info.ExpectedBtypes);
740
            printf ("Must return: %s\n", TypeBuffer);
741
        }
742
        else
743
        {
744
            printf ("No return value\n");
745
        }
746
 
747
        /*
748
         * Skip next entry in the table if this name returns a Package
749
         * (next entry contains the package info)
750
         */
751
        if (ThisName->Info.ExpectedBtypes & ACPI_RTYPE_PACKAGE)
752
        {
753
            ThisName++;
754
        }
755
 
756
        Count++;
757
        ThisName++;
758
    }
759
 
760
    printf ("%u Predefined Names are recognized\n", Count);
761
 
762
    /*
763
     * Resource Descriptor names
764
     */
765
    printf ("\nResource Descriptor Predefined Names\n\n");
766
 
767
    Count = 0;
768
    ThisName = ResourceNames;
769
    while (ThisName->Info.Name[0])
770
    {
771
        printf ("%4.4s    Resource Descriptor\n", ThisName->Info.Name);
772
        Count++;
773
        ThisName++;
774
    }
775
 
776
    printf ("%u Resource Descriptor Names are recognized\n", Count);
777
 
778
    /*
779
     * Predefined scope names
780
     */
781
    printf ("\nPredefined Scope Names\n\n");
782
 
783
    ThisName = ScopeNames;
784
    while (ThisName->Info.Name[0])
785
    {
786
        printf ("%4.4s    Scope\n", ThisName->Info.Name);
787
        ThisName++;
788
    }
789
}
790
 
791
 
792
/*******************************************************************************
793
 *
794
 * FUNCTION:    ApGetExpectedTypes
795
 *
796
 * PARAMETERS:  Buffer              - Where the formatted string is returned
797
 *              ExpectedBTypes      - Bitfield of expected data types
798
 *
799
 * RETURN:      None, formatted string
800
 *
801
 * DESCRIPTION: Format the expected object types into a printable string.
802
 *
803
 ******************************************************************************/
804
 
805
static void
806
ApGetExpectedTypes (
807
    char                        *Buffer,
808
    UINT32                      ExpectedBtypes)
809
{
810
    UINT32                      ThisRtype;
811
    UINT32                      i;
812
    UINT32                      j;
813
 
814
 
815
    j = 1;
816
    Buffer[0] = 0;
817
    ThisRtype = ACPI_RTYPE_INTEGER;
818
 
819
    for (i = 0; i < ACPI_NUM_RTYPES; i++)
820
    {
821
        /* If one of the expected types, concatenate the name of this type */
822
 
823
        if (ExpectedBtypes & ThisRtype)
824
        {
825
            ACPI_STRCAT (Buffer, &AcpiRtypeNames[i][j]);
826
            j = 0;              /* Use name separator from now on */
827
        }
828
        ThisRtype <<= 1;    /* Next Rtype */
829
    }
830
}
831