sys/external/intel-public/acpica/dist/disassembler/dmopcode.c

   1 /*******************************************************************************
   2  *
   3  * Module Name: dmopcode - AML disassembler, specific AML opcodes
   4  *
   5  ******************************************************************************/
   6
   7 /******************************************************************************
   8  *
   9  * 1. Copyright Notice
  10  *
  11  * Some or all of this work - Copyright (c) 1999 - 2009, 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 #include "acpi.h"
 117 #include "accommon.h"
 118 #include "acparser.h"
 119 #include "amlcode.h"
 120 #include "acdisasm.h"
 121
 122 #ifdef ACPI_DISASSEMBLER
 123
 124 #define _COMPONENT          ACPI_CA_DEBUGGER
 125         ACPI_MODULE_NAME    ("dmopcode")
 126
 127 /* Local prototypes */
 128
 129 static void
 130 AcpiDmMatchKeyword (
 131     ACPI_PARSE_OBJECT       *Op);
 132
 133
 134 /*******************************************************************************
 135  *
 136  * FUNCTION:    AcpiDmMethodFlags
 137  *
 138  * PARAMETERS:  Op              - Method Object to be examined
 139  *
 140  * RETURN:      None
 141  *
 142  * DESCRIPTION: Decode control method flags
 143  *
 144  ******************************************************************************/
 145
 146 void
 147 AcpiDmMethodFlags (
 148     ACPI_PARSE_OBJECT       *Op)
 149 {
 150     UINT32                  Flags;
 151     UINT32                  Args;
 152
 153
 154     /* The next Op contains the flags */
 155
 156     Op = AcpiPsGetDepthNext (NULL, Op);
 157     Flags = (UINT8) Op->Common.Value.Integer;
 158     Args = Flags & 0x07;
 159
 160     /* Mark the Op as completed */
 161
 162     Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
 163
 164     /* 1) Method argument count */
 165
 166     AcpiOsPrintf (", %d, ", Args);
 167
 168     /* 2) Serialize rule */
 169
 170     if (!(Flags & 0x08))
 171     {
 172         AcpiOsPrintf ("Not");
 173     }
 174
 175     AcpiOsPrintf ("Serialized");
 176
 177     /* 3) SyncLevel */
 178
 179     if (Flags & 0xF0)
 180     {
 181         AcpiOsPrintf (", %d", Flags >> 4);
 182     }
 183 }
 184
 185
 186 /*******************************************************************************
 187  *
 188  * FUNCTION:    AcpiDmFieldFlags
 189  *
 190  * PARAMETERS:  Op              - Field Object to be examined
 191  *
 192  * RETURN:      None
 193  *
 194  * DESCRIPTION: Decode Field definition flags
 195  *
 196  ******************************************************************************/
 197
 198 void
 199 AcpiDmFieldFlags (
 200     ACPI_PARSE_OBJECT       *Op)
 201 {
 202     UINT32                  Flags;
 203
 204
 205     Op = Op->Common.Next;
 206     Flags = (UINT8) Op->Common.Value.Integer;
 207
 208     /* Mark the Op as completed */
 209
 210     Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
 211
 212     AcpiOsPrintf ("%s, ", AcpiGbl_AccessTypes [Flags & 0x07]);
 213     AcpiOsPrintf ("%s, ", AcpiGbl_LockRule [(Flags & 0x10) >> 4]);
 214     AcpiOsPrintf ("%s)",  AcpiGbl_UpdateRules [(Flags & 0x60) >> 5]);
 215 }
 216
 217
 218 /*******************************************************************************
 219  *
 220  * FUNCTION:    AcpiDmAddressSpace
 221  *
 222  * PARAMETERS:  SpaceId         - ID to be translated
 223  *
 224  * RETURN:      None
 225  *
 226  * DESCRIPTION: Decode a SpaceId to an AddressSpaceKeyword
 227  *
 228  ******************************************************************************/
 229
 230 void
 231 AcpiDmAddressSpace (
 232     UINT8                   SpaceId)
 233 {
 234
 235     if (SpaceId >= ACPI_NUM_PREDEFINED_REGIONS)
 236     {
 237         if (SpaceId == 0x7F)
 238         {
 239             AcpiOsPrintf ("FFixedHW, ");
 240         }
 241         else
 242         {
 243             AcpiOsPrintf ("0x%.2X, ", SpaceId);
 244         }
 245     }
 246     else
 247     {
 248         AcpiOsPrintf ("%s, ", AcpiGbl_RegionTypes [SpaceId]);
 249     }
 250 }
 251
 252
 253 /*******************************************************************************
 254  *
 255  * FUNCTION:    AcpiDmRegionFlags
 256  *
 257  * PARAMETERS:  Op              - Object to be examined
 258  *
 259  * RETURN:      None
 260  *
 261  * DESCRIPTION: Decode OperationRegion flags
 262  *
 263  ******************************************************************************/
 264
 265 void
 266 AcpiDmRegionFlags (
 267     ACPI_PARSE_OBJECT       *Op)
 268 {
 269
 270
 271     /* The next Op contains the SpaceId */
 272
 273     Op = AcpiPsGetDepthNext (NULL, Op);
 274
 275     /* Mark the Op as completed */
 276
 277     Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
 278
 279     AcpiOsPrintf (", ");
 280     AcpiDmAddressSpace ((UINT8) Op->Common.Value.Integer);
 281 }
 282
 283
 284 /*******************************************************************************
 285  *
 286  * FUNCTION:    AcpiDmMatchOp
 287  *
 288  * PARAMETERS:  Op              - Match Object to be examined
 289  *
 290  * RETURN:      None
 291  *
 292  * DESCRIPTION: Decode Match opcode operands
 293  *
 294  ******************************************************************************/
 295
 296 void
 297 AcpiDmMatchOp (
 298     ACPI_PARSE_OBJECT       *Op)
 299 {
 300     ACPI_PARSE_OBJECT       *NextOp;
 301
 302
 303     NextOp = AcpiPsGetDepthNext (NULL, Op);
 304     NextOp = NextOp->Common.Next;
 305
 306     if (!NextOp)
 307     {
 308         /* Handle partial tree during single-step */
 309
 310         return;
 311     }
 312
 313     /* Mark the two nodes that contain the encoding for the match keywords */
 314
 315     NextOp->Common.DisasmOpcode = ACPI_DASM_MATCHOP;
 316
 317     NextOp = NextOp->Common.Next;
 318     NextOp = NextOp->Common.Next;
 319     NextOp->Common.DisasmOpcode = ACPI_DASM_MATCHOP;
 320 }
 321
 322
 323 /*******************************************************************************
 324  *
 325  * FUNCTION:    AcpiDmMatchKeyword
 326  *
 327  * PARAMETERS:  Op              - Match Object to be examined
 328  *
 329  * RETURN:      None
 330  *
 331  * DESCRIPTION: Decode Match opcode operands
 332  *
 333  ******************************************************************************/
 334
 335 static void
 336 AcpiDmMatchKeyword (
 337     ACPI_PARSE_OBJECT       *Op)
 338 {
 339
 340
 341     if (((UINT32) Op->Common.Value.Integer) > ACPI_MAX_MATCH_OPCODE)
 342     {
 343         AcpiOsPrintf ("/* Unknown Match Keyword encoding */");
 344     }
 345     else
 346     {
 347         AcpiOsPrintf ("%s", ACPI_CAST_PTR (char,
 348             AcpiGbl_MatchOps[(ACPI_SIZE) Op->Common.Value.Integer]));
 349     }
 350 }
 351
 352
 353 /*******************************************************************************
 354  *
 355  * FUNCTION:    AcpiDmDisassembleOneOp
 356  *
 357  * PARAMETERS:  WalkState           - Current walk info
 358  *              Info                - Parse tree walk info
 359  *              Op                  - Op that is to be printed
 360  *
 361  * RETURN:      None
 362  *
 363  * DESCRIPTION: Disassemble a single AML opcode
 364  *
 365  ******************************************************************************/
 366
 367 void
 368 AcpiDmDisassembleOneOp (
 369     ACPI_WALK_STATE         *WalkState,
 370     ACPI_OP_WALK_INFO       *Info,
 371     ACPI_PARSE_OBJECT       *Op)
 372 {
 373     const ACPI_OPCODE_INFO  *OpInfo = NULL;
 374     UINT32                  Offset;
 375     UINT32                  Length;
 376     ACPI_PARSE_OBJECT       *Child;
 377     ACPI_STATUS             Status;
 378
 379
 380     if (!Op)
 381     {
 382         AcpiOsPrintf ("<NULL OP PTR>");
 383         return;
 384     }
 385
 386     switch (Op->Common.DisasmOpcode)
 387     {
 388     case ACPI_DASM_MATCHOP:
 389
 390         AcpiDmMatchKeyword (Op);
 391         return;
 392
 393     case ACPI_DASM_LNOT_SUFFIX:
 394         switch (Op->Common.AmlOpcode)
 395         {
 396         case AML_LEQUAL_OP:
 397             AcpiOsPrintf ("LNotEqual");
 398             break;
 399
 400         case AML_LGREATER_OP:
 401             AcpiOsPrintf ("LLessEqual");
 402             break;
 403
 404         case AML_LLESS_OP:
 405             AcpiOsPrintf ("LGreaterEqual");
 406             break;
 407
 408         default:
 409             break;
 410         }
 411         Op->Common.DisasmOpcode = 0;
 412         Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
 413         return;
 414
 415     default:
 416         break;
 417     }
 418
 419
 420     OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
 421
 422     /* The op and arguments */
 423
 424     switch (Op->Common.AmlOpcode)
 425     {
 426     case AML_LNOT_OP:
 427
 428         Child = Op->Common.Value.Arg;
 429         if ((Child->Common.AmlOpcode == AML_LEQUAL_OP) ||
 430             (Child->Common.AmlOpcode == AML_LGREATER_OP) ||
 431             (Child->Common.AmlOpcode == AML_LLESS_OP))
 432         {
 433             Child->Common.DisasmOpcode = ACPI_DASM_LNOT_SUFFIX;
 434             Op->Common.DisasmOpcode = ACPI_DASM_LNOT_PREFIX;
 435         }
 436         else
 437         {
 438             AcpiOsPrintf ("%s", OpInfo->Name);
 439         }
 440         break;
 441
 442     case AML_BYTE_OP:
 443
 444         AcpiOsPrintf ("0x%2.2X", (UINT32) Op->Common.Value.Integer);
 445         break;
 446
 447
 448     case AML_WORD_OP:
 449
 450         if (Op->Common.DisasmOpcode == ACPI_DASM_EISAID)
 451         {
 452             AcpiDmEisaId ((UINT32) Op->Common.Value.Integer);
 453         }
 454         else
 455         {
 456             AcpiOsPrintf ("0x%4.4X", (UINT32) Op->Common.Value.Integer);
 457         }
 458         break;
 459
 460
 461     case AML_DWORD_OP:
 462
 463         if (Op->Common.DisasmOpcode == ACPI_DASM_EISAID)
 464         {
 465             AcpiDmEisaId ((UINT32) Op->Common.Value.Integer);
 466         }
 467         else
 468         {
 469             AcpiOsPrintf ("0x%8.8X", (UINT32) Op->Common.Value.Integer);
 470         }
 471         break;
 472
 473
 474     case AML_QWORD_OP:
 475
 476         AcpiOsPrintf ("0x%8.8X%8.8X", Op->Common.Value.Integer64.Hi,
 477                                       Op->Common.Value.Integer64.Lo);
 478         break;
 479
 480
 481     case AML_STRING_OP:
 482
 483         AcpiUtPrintString (Op->Common.Value.String, ACPI_UINT8_MAX);
 484         break;
 485
 486
 487     case AML_BUFFER_OP:
 488
 489         /*
 490          * Determine the type of buffer.  We can have one of the following:
 491          *
 492          * 1) ResourceTemplate containing Resource Descriptors.
 493          * 2) Unicode String buffer
 494          * 3) ASCII String buffer
 495          * 4) Raw data buffer (if none of the above)
 496          *
 497          * Since there are no special AML opcodes to differentiate these
 498          * types of buffers, we have to closely look at the data in the
 499          * buffer to determine the type.
 500          */
 501         Status = AcpiDmIsResourceTemplate (Op);
 502         if (ACPI_SUCCESS (Status))
 503         {
 504             Op->Common.DisasmOpcode = ACPI_DASM_RESOURCE;
 505             AcpiOsPrintf ("ResourceTemplate");
 506             break;
 507         }
 508         else if (Status == AE_AML_NO_RESOURCE_END_TAG)
 509         {
 510             AcpiOsPrintf ("/**** Is ResourceTemplate, but EndTag not at buffer end ****/ ");
 511         }
 512
 513         if (AcpiDmIsUnicodeBuffer (Op))
 514         {
 515             Op->Common.DisasmOpcode = ACPI_DASM_UNICODE;
 516             AcpiOsPrintf ("Unicode (");
 517         }
 518         else if (AcpiDmIsStringBuffer (Op))
 519         {
 520             Op->Common.DisasmOpcode = ACPI_DASM_STRING;
 521             AcpiOsPrintf ("Buffer");
 522         }
 523         else
 524         {
 525             Op->Common.DisasmOpcode = ACPI_DASM_BUFFER;
 526             AcpiOsPrintf ("Buffer");
 527         }
 528         break;
 529
 530
 531     case AML_INT_STATICSTRING_OP:
 532
 533         if (Op->Common.Value.String)
 534         {
 535             AcpiOsPrintf ("%s", Op->Common.Value.String);
 536         }
 537         else
 538         {
 539             AcpiOsPrintf ("\"<NULL STATIC STRING PTR>\"");
 540         }
 541         break;
 542
 543
 544     case AML_INT_NAMEPATH_OP:
 545
 546         AcpiDmNamestring (Op->Common.Value.Name);
 547         break;
 548
 549
 550     case AML_INT_NAMEDFIELD_OP:
 551
 552         Length = AcpiDmDumpName (Op->Named.Name);
 553         AcpiOsPrintf (",%*.s  %d", (int) (5 - Length), " ",
 554             (UINT32) Op->Common.Value.Integer);
 555         AcpiDmCommaIfFieldMember (Op);
 556
 557         Info->BitOffset += (UINT32) Op->Common.Value.Integer;
 558         break;
 559
 560
 561     case AML_INT_RESERVEDFIELD_OP:
 562
 563         /* Offset() -- Must account for previous offsets */
 564
 565         Offset = (UINT32) Op->Common.Value.Integer;
 566         Info->BitOffset += Offset;
 567
 568         if (Info->BitOffset % 8 == 0)
 569         {
 570             AcpiOsPrintf ("        Offset (0x%.2X)", ACPI_DIV_8 (Info->BitOffset));
 571         }
 572         else
 573         {
 574             AcpiOsPrintf ("    ,   %d", Offset);
 575         }
 576
 577         AcpiDmCommaIfFieldMember (Op);
 578         break;
 579
 580
 581     case AML_INT_ACCESSFIELD_OP:
 582
 583         AcpiOsPrintf ("        AccessAs (%s, ",
 584             AcpiGbl_AccessTypes [(UINT32) (Op->Common.Value.Integer >> 8) & 0x7]);
 585
 586         AcpiDmDecodeAttribute ((UINT8) Op->Common.Value.Integer);
 587         AcpiOsPrintf (")");
 588         AcpiDmCommaIfFieldMember (Op);
 589         break;
 590
 591
 592     case AML_INT_BYTELIST_OP:
 593
 594         AcpiDmByteList (Info, Op);
 595         break;
 596
 597
 598     case AML_INT_METHODCALL_OP:
 599
 600         Op = AcpiPsGetDepthNext (NULL, Op);
 601         Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
 602
 603         AcpiDmNamestring (Op->Common.Value.Name);
 604         break;
 605
 606
 607     default:
 608
 609         /* Just get the opcode name and print it */
 610
 611         AcpiOsPrintf ("%s", OpInfo->Name);
 612
 613
 614 #ifdef ACPI_DEBUGGER
 615
 616         if ((Op->Common.AmlOpcode == AML_INT_RETURN_VALUE_OP) &&
 617             (WalkState) &&
 618             (WalkState->Results) &&
 619             (WalkState->ResultCount))
 620         {
 621             AcpiDmDecodeInternalObject (
 622                 WalkState->Results->Results.ObjDesc [
 623                     (WalkState->ResultCount - 1) %
 624                         ACPI_RESULTS_FRAME_OBJ_NUM]);
 625         }
 626 #endif
 627
 628         break;
 629     }
 630 }
 631
 632 #endif  /* ACPI_DISASSEMBLER */