sys/contrib/dev/acpica-unix-20061109/disassembler/dmutils.c

   1 /*******************************************************************************
   2  *
   3  * Module Name: dmutils - AML disassembler utilities
   4  *              $Revision: 1.24 $
   5  *
   6  ******************************************************************************/
   7
   8 /******************************************************************************
   9  *
  10  * 1. Copyright Notice
  11  *
  12  * Some or all of this work - Copyright (c) 1999 - 2006, Intel Corp.
  13  * All rights reserved.
  14  *
  15  * 2. License
  16  *
  17  * 2.1. This is your license from Intel Corp. under its intellectual property
  18  * rights.  You may have additional license terms from the party that provided
  19  * you this software, covering your right to use that party's intellectual
  20  * property rights.
  21  *
  22  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
  23  * copy of the source code appearing in this file ("Covered Code") an
  24  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
  25  * base code distributed originally by Intel ("Original Intel Code") to copy,
  26  * make derivatives, distribute, use and display any portion of the Covered
  27  * Code in any form, with the right to sublicense such rights; and
  28  *
  29  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
  30  * license (with the right to sublicense), under only those claims of Intel
  31  * patents that are infringed by the Original Intel Code, to make, use, sell,
  32  * offer to sell, and import the Covered Code and derivative works thereof
  33  * solely to the minimum extent necessary to exercise the above copyright
  34  * license, and in no event shall the patent license extend to any additions
  35  * to or modifications of the Original Intel Code.  No other license or right
  36  * is granted directly or by implication, estoppel or otherwise;
  37  *
  38  * The above copyright and patent license is granted only if the following
  39  * conditions are met:
  40  *
  41  * 3. Conditions
  42  *
  43  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
  44  * Redistribution of source code of any substantial portion of the Covered
  45  * Code or modification with rights to further distribute source must include
  46  * the above Copyright Notice, the above License, this list of Conditions,
  47  * and the following Disclaimer and Export Compliance provision.  In addition,
  48  * Licensee must cause all Covered Code to which Licensee contributes to
  49  * contain a file documenting the changes Licensee made to create that Covered
  50  * Code and the date of any change.  Licensee must include in that file the
  51  * documentation of any changes made by any predecessor Licensee.  Licensee
  52  * must include a prominent statement that the modification is derived,
  53  * directly or indirectly, from Original Intel Code.
  54  *
  55  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
  56  * Redistribution of source code of any substantial portion of the Covered
  57  * Code or modification without rights to further distribute source must
  58  * include the following Disclaimer and Export Compliance provision in the
  59  * documentation and/or other materials provided with distribution.  In
  60  * addition, Licensee may not authorize further sublicense of source of any
  61  * portion of the Covered Code, and must include terms to the effect that the
  62  * license from Licensee to its licensee is limited to the intellectual
  63  * property embodied in the software Licensee provides to its licensee, and
  64  * not to intellectual property embodied in modifications its licensee may
  65  * make.
  66  *
  67  * 3.3. Redistribution of Executable. Redistribution in executable form of any
  68  * substantial portion of the Covered Code or modification must reproduce the
  69  * above Copyright Notice, and the following Disclaimer and Export Compliance
  70  * provision in the documentation and/or other materials provided with the
  71  * distribution.
  72  *
  73  * 3.4. Intel retains all right, title, and interest in and to the Original
  74  * Intel Code.
  75  *
  76  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
  77  * Intel shall be used in advertising or otherwise to promote the sale, use or
  78  * other dealings in products derived from or relating to the Covered Code
  79  * without prior written authorization from Intel.
  80  *
  81  * 4. Disclaimer and Export Compliance
  82  *
  83  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
  84  * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
  85  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
  86  * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
  87  * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
  88  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
  89  * PARTICULAR PURPOSE.
  90  *
  91  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
  92  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
  93  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
  94  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
  95  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
  96  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
  97  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
  98  * LIMITED REMEDY.
  99  *
 100  * 4.3. Licensee shall not export, either directly or indirectly, any of this
 101  * software or system incorporating such software without first obtaining any
 102  * required license or other approval from the U. S. Department of Commerce or
 103  * any other agency or department of the United States Government.  In the
 104  * event Licensee exports any such software from the United States or
 105  * re-exports any such software from a foreign destination, Licensee shall
 106  * ensure that the distribution and export/re-export of the software is in
 107  * compliance with all laws, regulations, orders, or other restrictions of the
 108  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
 109  * any of its subsidiaries will export/re-export any technical data, process,
 110  * software, or service, directly or indirectly, to any country for which the
 111  * United States government or any agency thereof requires an export license,
 112  * other governmental approval, or letter of assurance, without first obtaining
 113  * such license, approval or letter.
 114  *
 115  *****************************************************************************/
 116
 117
 118 #include "acpi.h"
 119 #include "amlcode.h"
 120 #include "acdisasm.h"
 121
 122 #ifdef ACPI_ASL_COMPILER
 123 #include <acnamesp.h>
 124 #endif
 125
 126 #ifdef ACPI_DISASSEMBLER
 127
 128 #define _COMPONENT          ACPI_CA_DEBUGGER
 129         ACPI_MODULE_NAME    ("dmutils")
 130
 131
 132 ACPI_EXTERNAL_LIST              *AcpiGbl_ExternalList = NULL;
 133
 134
 135 /* Data used in keeping track of fields */
 136 #if 0
 137 const char                      *AcpiGbl_FENames[] =
 138 {
 139     "skip",
 140     "?access?"
 141 };              /* FE = Field Element */
 142 #endif
 143
 144 /* Operators for Match() */
 145
 146 const char                      *AcpiGbl_MatchOps[] =
 147 {
 148     "MTR",
 149     "MEQ",
 150     "MLE",
 151     "MLT",
 152     "MGE",
 153     "MGT"
 154 };
 155
 156 /* Access type decoding */
 157
 158 const char                      *AcpiGbl_AccessTypes[] =
 159 {
 160     "AnyAcc",
 161     "ByteAcc",
 162     "WordAcc",
 163     "DWordAcc",
 164     "QWordAcc",
 165     "BufferAcc",
 166     "InvalidAccType",
 167     "InvalidAccType"
 168 };
 169
 170 /* Lock rule decoding */
 171
 172 const char                      *AcpiGbl_LockRule[] =
 173 {
 174     "NoLock",
 175     "Lock"
 176 };
 177
 178 /* Update rule decoding */
 179
 180 const char                      *AcpiGbl_UpdateRules[] =
 181 {
 182     "Preserve",
 183     "WriteAsOnes",
 184     "WriteAsZeros",
 185     "InvalidUpdateRule"
 186 };
 187
 188 /* Strings used to decode resource descriptors */
 189
 190 const char                      *AcpiGbl_WordDecode[] =
 191 {
 192     "Memory",
 193     "IO",
 194     "BusNumber",
 195     "UnknownResourceType"
 196 };
 197
 198 const char                      *AcpiGbl_IrqDecode[] =
 199 {
 200     "IRQNoFlags",
 201     "IRQ"
 202 };
 203
 204
 205 #ifdef ACPI_ASL_COMPILER
 206 /*******************************************************************************
 207  *
 208  * FUNCTION:    AcpiDmAddToExternalList
 209  *
 210  * PARAMETERS:  Path            - Internal (AML) path to the object
 211  *
 212  * RETURN:      None
 213  *
 214  * DESCRIPTION: Insert a new path into the list of Externals which will in
 215  *              turn be emitted as an External() declaration in the disassembled
 216  *              output.
 217  *
 218  ******************************************************************************/
 219
 220 void
 221 AcpiDmAddToExternalList (
 222     char                    *Path,
 223     UINT8                   Type,
 224     UINT32                  Value)
 225 {
 226     char                    *ExternalPath;
 227     ACPI_EXTERNAL_LIST      *NewExternal;
 228     ACPI_EXTERNAL_LIST      *NextExternal;
 229     ACPI_EXTERNAL_LIST      *PrevExternal = NULL;
 230     ACPI_STATUS             Status;
 231
 232
 233     if (!Path)
 234     {
 235         return;
 236     }
 237
 238     /* Externalize the ACPI path */
 239
 240     Status = AcpiNsExternalizeName (ACPI_UINT32_MAX, Path,
 241                     NULL, &ExternalPath);
 242     if (ACPI_FAILURE (Status))
 243     {
 244         return;
 245     }
 246
 247     /* Ensure that we don't have duplicate externals */
 248
 249     NextExternal = AcpiGbl_ExternalList;
 250     while (NextExternal)
 251     {
 252         /* Allow upgrade of type from ANY */
 253
 254         if (!ACPI_STRCMP (ExternalPath, NextExternal->Path))
 255         {
 256             /* Duplicate method, check that the Value (ArgCount) is the same */
 257
 258             if ((NextExternal->Type == ACPI_TYPE_METHOD) &&
 259                 (NextExternal->Value != Value))
 260             {
 261                 ACPI_ERROR ((AE_INFO, "Argument count mismatch for method %s %d %d",
 262                     NextExternal->Path, NextExternal->Value, Value));
 263             }
 264             if (NextExternal->Type == ACPI_TYPE_ANY)
 265             {
 266                 NextExternal->Type = Type;
 267                 NextExternal->Value = Value;
 268             }
 269             ACPI_FREE (ExternalPath);
 270             return;
 271         }
 272         NextExternal = NextExternal->Next;
 273     }
 274
 275     /* Allocate and init a new External() descriptor */
 276
 277     NewExternal = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EXTERNAL_LIST));
 278     NewExternal->InternalPath = Path;
 279     NewExternal->Path = ExternalPath;
 280     NewExternal->Type = Type;
 281     NewExternal->Value = Value;
 282     NewExternal->Length = (UINT16) ACPI_STRLEN (ExternalPath);
 283
 284     /* Link the new descriptor into the global list, ordered by string length */
 285
 286     NextExternal = AcpiGbl_ExternalList;
 287     while (NextExternal)
 288     {
 289         if (NewExternal->Length <= NextExternal->Length)
 290         {
 291             if (PrevExternal)
 292             {
 293                 PrevExternal->Next = NewExternal;
 294             }
 295             else
 296             {
 297                 AcpiGbl_ExternalList = NewExternal;
 298             }
 299
 300             NewExternal->Next = NextExternal;
 301             return;
 302         }
 303
 304         PrevExternal = NextExternal;
 305         NextExternal = NextExternal->Next;
 306     }
 307
 308     if (PrevExternal)
 309     {
 310         PrevExternal->Next = NewExternal;
 311     }
 312     else
 313     {
 314         AcpiGbl_ExternalList = NewExternal;
 315     }
 316 }
 317 #endif
 318
 319
 320 /*******************************************************************************
 321  *
 322  * FUNCTION:    AcpiDmDecodeAttribute
 323  *
 324  * PARAMETERS:  Attribute       - Attribute field of AccessAs keyword
 325  *
 326  * RETURN:      None
 327  *
 328  * DESCRIPTION: Decode the AccessAs attribute byte.  (Mostly SMBus stuff)
 329  *
 330  ******************************************************************************/
 331
 332 void
 333 AcpiDmDecodeAttribute (
 334     UINT8                   Attribute)
 335 {
 336
 337     switch (Attribute)
 338     {
 339     case AML_FIELD_ATTRIB_SMB_QUICK:
 340
 341         AcpiOsPrintf ("SMBQuick");
 342         break;
 343
 344     case AML_FIELD_ATTRIB_SMB_SEND_RCV:
 345
 346         AcpiOsPrintf ("SMBSendReceive");
 347         break;
 348
 349     case AML_FIELD_ATTRIB_SMB_BYTE:
 350
 351         AcpiOsPrintf ("SMBByte");
 352         break;
 353
 354     case AML_FIELD_ATTRIB_SMB_WORD:
 355
 356         AcpiOsPrintf ("SMBWord");
 357         break;
 358
 359     case AML_FIELD_ATTRIB_SMB_WORD_CALL:
 360
 361         AcpiOsPrintf ("SMBProcessCall");
 362         break;
 363
 364     case AML_FIELD_ATTRIB_SMB_BLOCK:
 365
 366         AcpiOsPrintf ("SMBBlock");
 367         break;
 368
 369     case AML_FIELD_ATTRIB_SMB_BLOCK_CALL:
 370
 371         AcpiOsPrintf ("SMBBlockProcessCall");
 372         break;
 373
 374     default:
 375
 376         AcpiOsPrintf ("0x%.2X", Attribute);
 377         break;
 378     }
 379 }
 380
 381
 382 /*******************************************************************************
 383  *
 384  * FUNCTION:    AcpiDmIndent
 385  *
 386  * PARAMETERS:  Level               - Current source code indentation level
 387  *
 388  * RETURN:      None
 389  *
 390  * DESCRIPTION: Indent 4 spaces per indentation level.
 391  *
 392  ******************************************************************************/
 393
 394 void
 395 AcpiDmIndent (
 396     UINT32                  Level)
 397 {
 398
 399     if (!Level)
 400     {
 401         return;
 402     }
 403
 404     AcpiOsPrintf ("%*.s", ACPI_MUL_4 (Level), " ");
 405 }
 406
 407
 408 /*******************************************************************************
 409  *
 410  * FUNCTION:    AcpiDmCommaIfListMember
 411  *
 412  * PARAMETERS:  Op              - Current operator/operand
 413  *
 414  * RETURN:      TRUE if a comma was inserted
 415  *
 416  * DESCRIPTION: Insert a comma if this Op is a member of an argument list.
 417  *
 418  ******************************************************************************/
 419
 420 BOOLEAN
 421 AcpiDmCommaIfListMember (
 422     ACPI_PARSE_OBJECT       *Op)
 423 {
 424
 425     if (!Op->Common.Next)
 426     {
 427         return FALSE;
 428     }
 429
 430     if (AcpiDmListType (Op->Common.Parent) & BLOCK_COMMA_LIST)
 431     {
 432         /* Check for a NULL target operand */
 433
 434         if ((Op->Common.Next->Common.AmlOpcode == AML_INT_NAMEPATH_OP) &&
 435             (!Op->Common.Next->Common.Value.String))
 436         {
 437             /*
 438              * To handle the Divide() case where there are two optional
 439              * targets, look ahead one more op.  If null, this null target
 440              * is the one and only target -- no comma needed.  Otherwise,
 441              * we need a comma to prepare for the next target.
 442              */
 443             if (!Op->Common.Next->Common.Next)
 444             {
 445                 return FALSE;
 446             }
 447         }
 448
 449         if ((Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST) &&
 450             (!(Op->Common.Next->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)))
 451         {
 452             return FALSE;
 453         }
 454
 455         AcpiOsPrintf (", ");
 456         return (TRUE);
 457     }
 458
 459     else if ((Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST) &&
 460              (Op->Common.Next->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST))
 461     {
 462         AcpiOsPrintf (", ");
 463         return (TRUE);
 464     }
 465
 466     return (FALSE);
 467 }
 468
 469
 470 /*******************************************************************************
 471  *
 472  * FUNCTION:    AcpiDmCommaIfFieldMember
 473  *
 474  * PARAMETERS:  Op              - Current operator/operand
 475  *
 476  * RETURN:      None
 477  *
 478  * DESCRIPTION: Insert a comma if this Op is a member of a Field argument list.
 479  *
 480  ******************************************************************************/
 481
 482 void
 483 AcpiDmCommaIfFieldMember (
 484     ACPI_PARSE_OBJECT       *Op)
 485 {
 486
 487     if (Op->Common.Next)
 488     {
 489         AcpiOsPrintf (", ");
 490     }
 491 }
 492
 493 #endif