drivers/bus/acpi/acpica/utilities/utdebug.c

   1 /******************************************************************************
   2  *
   3  * Module Name: utdebug - Debug print routines
   4  *
   5  *****************************************************************************/
   6
   7 /******************************************************************************
   8  *
   9  * 1. Copyright Notice
  10  *
  11  * Some or all of this work - Copyright (c) 1999 - 2011, 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 __UTDEBUG_C__
 117
 118 #include "acpi.h"
 119 #include "accommon.h"
 120
 121 #define _COMPONENT          ACPI_UTILITIES
 122         ACPI_MODULE_NAME    ("utdebug")
 123
 124
 125 #ifdef ACPI_DEBUG_OUTPUT
 126
 127 static ACPI_THREAD_ID       AcpiGbl_PrevThreadId = (ACPI_THREAD_ID) 0xFFFFFFFF;
 128 static char                 *AcpiGbl_FnEntryStr = "----Entry";
 129 static char                 *AcpiGbl_FnExitStr  = "----Exit-";
 130
 131 /* Local prototypes */
 132
 133 static const char *
 134 AcpiUtTrimFunctionName (
 135     const char              *FunctionName);
 136
 137
 138 /*******************************************************************************
 139  *
 140  * FUNCTION:    AcpiUtInitStackPtrTrace
 141  *
 142  * PARAMETERS:  None
 143  *
 144  * RETURN:      None
 145  *
 146  * DESCRIPTION: Save the current CPU stack pointer at subsystem startup
 147  *
 148  ******************************************************************************/
 149
 150 void
 151 AcpiUtInitStackPtrTrace (
 152     void)
 153 {
 154     ACPI_SIZE               CurrentSp;
 155
 156
 157     AcpiGbl_EntryStackPointer = &CurrentSp;
 158 }
 159
 160
 161 /*******************************************************************************
 162  *
 163  * FUNCTION:    AcpiUtTrackStackPtr
 164  *
 165  * PARAMETERS:  None
 166  *
 167  * RETURN:      None
 168  *
 169  * DESCRIPTION: Save the current CPU stack pointer
 170  *
 171  ******************************************************************************/
 172
 173 void
 174 AcpiUtTrackStackPtr (
 175     void)
 176 {
 177     ACPI_SIZE               CurrentSp;
 178
 179
 180     if (&CurrentSp < AcpiGbl_LowestStackPointer)
 181     {
 182         AcpiGbl_LowestStackPointer = &CurrentSp;
 183     }
 184
 185     if (AcpiGbl_NestingLevel > AcpiGbl_DeepestNesting)
 186     {
 187         AcpiGbl_DeepestNesting = AcpiGbl_NestingLevel;
 188     }
 189 }
 190
 191
 192 /*******************************************************************************
 193  *
 194  * FUNCTION:    AcpiUtTrimFunctionName
 195  *
 196  * PARAMETERS:  FunctionName        - Ascii string containing a procedure name
 197  *
 198  * RETURN:      Updated pointer to the function name
 199  *
 200  * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present.
 201  *              This allows compiler macros such as __FUNCTION__ to be used
 202  *              with no change to the debug output.
 203  *
 204  ******************************************************************************/
 205
 206 static const char *
 207 AcpiUtTrimFunctionName (
 208     const char              *FunctionName)
 209 {
 210
 211     /* All Function names are longer than 4 chars, check is safe */
 212
 213     if (*(ACPI_CAST_PTR (UINT32, FunctionName)) == ACPI_PREFIX_MIXED)
 214     {
 215         /* This is the case where the original source has not been modified */
 216
 217         return (FunctionName + 4);
 218     }
 219
 220     if (*(ACPI_CAST_PTR (UINT32, FunctionName)) == ACPI_PREFIX_LOWER)
 221     {
 222         /* This is the case where the source has been 'linuxized' */
 223
 224         return (FunctionName + 5);
 225     }
 226
 227     return (FunctionName);
 228 }
 229
 230
 231 /*******************************************************************************
 232  *
 233  * FUNCTION:    AcpiDebugPrint
 234  *
 235  * PARAMETERS:  RequestedDebugLevel - Requested debug print level
 236  *              LineNumber          - Caller's line number (for error output)
 237  *              FunctionName        - Caller's procedure name
 238  *              ModuleName          - Caller's module name
 239  *              ComponentId         - Caller's component ID
 240  *              Format              - Printf format field
 241  *              ...                 - Optional printf arguments
 242  *
 243  * RETURN:      None
 244  *
 245  * DESCRIPTION: Print error message with prefix consisting of the module name,
 246  *              line number, and component ID.
 247  *
 248  ******************************************************************************/
 249
 250 void  ACPI_INTERNAL_VAR_XFACE
 251 AcpiDebugPrint (
 252     UINT32                  RequestedDebugLevel,
 253     UINT32                  LineNumber,
 254     const char              *FunctionName,
 255     const char              *ModuleName,
 256     UINT32                  ComponentId,
 257     const char              *Format,
 258     ...)
 259 {
 260     ACPI_THREAD_ID          ThreadId;
 261     va_list                 args;
 262
 263
 264     /*
 265      * Stay silent if the debug level or component ID is disabled
 266      */
 267     if (!(RequestedDebugLevel & AcpiDbgLevel) ||
 268         !(ComponentId & AcpiDbgLayer))
 269     {
 270         return;
 271     }
 272
 273     /*
 274      * Thread tracking and context switch notification
 275      */
 276     ThreadId = AcpiOsGetThreadId ();
 277     if (ThreadId != AcpiGbl_PrevThreadId)
 278     {
 279         if (ACPI_LV_THREADS & AcpiDbgLevel)
 280         {
 281             AcpiOsPrintf (
 282                 "\n**** Context Switch from TID %u to TID %u ****\n\n",
 283                 (UINT32) AcpiGbl_PrevThreadId, (UINT32) ThreadId);
 284         }
 285
 286         AcpiGbl_PrevThreadId = ThreadId;
 287     }
 288
 289     /*
 290      * Display the module name, current line number, thread ID (if requested),
 291      * current procedure nesting level, and the current procedure name
 292      */
 293     AcpiOsPrintf ("%8s-%04ld ", ModuleName, LineNumber);
 294
 295     if (ACPI_LV_THREADS & AcpiDbgLevel)
 296     {
 297         AcpiOsPrintf ("[%u] ", (UINT32) ThreadId);
 298     }
 299
 300     AcpiOsPrintf ("[%02ld] %-22.22s: ",
 301         AcpiGbl_NestingLevel, AcpiUtTrimFunctionName (FunctionName));
 302
 303     va_start (args, Format);
 304     AcpiOsVprintf (Format, args);
 305     va_end (args);
 306 }
 307
 308 ACPI_EXPORT_SYMBOL (AcpiDebugPrint)
 309
 310
 311 /*******************************************************************************
 312  *
 313  * FUNCTION:    AcpiDebugPrintRaw
 314  *
 315  * PARAMETERS:  RequestedDebugLevel - Requested debug print level
 316  *              LineNumber          - Caller's line number
 317  *              FunctionName        - Caller's procedure name
 318  *              ModuleName          - Caller's module name
 319  *              ComponentId         - Caller's component ID
 320  *              Format              - Printf format field
 321  *              ...                 - Optional printf arguments
 322  *
 323  * RETURN:      None
 324  *
 325  * DESCRIPTION: Print message with no headers.  Has same interface as
 326  *              DebugPrint so that the same macros can be used.
 327  *
 328  ******************************************************************************/
 329
 330 void  ACPI_INTERNAL_VAR_XFACE
 331 AcpiDebugPrintRaw (
 332     UINT32                  RequestedDebugLevel,
 333     UINT32                  LineNumber,
 334     const char              *FunctionName,
 335     const char              *ModuleName,
 336     UINT32                  ComponentId,
 337     const char              *Format,
 338     ...)
 339 {
 340     va_list                 args;
 341
 342
 343     if (!(RequestedDebugLevel & AcpiDbgLevel) ||
 344         !(ComponentId & AcpiDbgLayer))
 345     {
 346         return;
 347     }
 348
 349     va_start (args, Format);
 350     AcpiOsVprintf (Format, args);
 351     va_end (args);
 352 }
 353
 354 ACPI_EXPORT_SYMBOL (AcpiDebugPrintRaw)
 355
 356
 357 /*******************************************************************************
 358  *
 359  * FUNCTION:    AcpiUtTrace
 360  *
 361  * PARAMETERS:  LineNumber          - Caller's line number
 362  *              FunctionName        - Caller's procedure name
 363  *              ModuleName          - Caller's module name
 364  *              ComponentId         - Caller's component ID
 365  *
 366  * RETURN:      None
 367  *
 368  * DESCRIPTION: Function entry trace.  Prints only if TRACE_FUNCTIONS bit is
 369  *              set in DebugLevel
 370  *
 371  ******************************************************************************/
 372
 373 void
 374 AcpiUtTrace (
 375     UINT32                  LineNumber,
 376     const char              *FunctionName,
 377     const char              *ModuleName,
 378     UINT32                  ComponentId)
 379 {
 380
 381     AcpiGbl_NestingLevel++;
 382     AcpiUtTrackStackPtr ();
 383
 384     AcpiDebugPrint (ACPI_LV_FUNCTIONS,
 385         LineNumber, FunctionName, ModuleName, ComponentId,
 386         "%s\n", AcpiGbl_FnEntryStr);
 387 }
 388
 389 ACPI_EXPORT_SYMBOL (AcpiUtTrace)
 390
 391
 392 /*******************************************************************************
 393  *
 394  * FUNCTION:    AcpiUtTracePtr
 395  *
 396  * PARAMETERS:  LineNumber          - Caller's line number
 397  *              FunctionName        - Caller's procedure name
 398  *              ModuleName          - Caller's module name
 399  *              ComponentId         - Caller's component ID
 400  *              Pointer             - Pointer to display
 401  *
 402  * RETURN:      None
 403  *
 404  * DESCRIPTION: Function entry trace.  Prints only if TRACE_FUNCTIONS bit is
 405  *              set in DebugLevel
 406  *
 407  ******************************************************************************/
 408
 409 void
 410 AcpiUtTracePtr (
 411     UINT32                  LineNumber,
 412     const char              *FunctionName,
 413     const char              *ModuleName,
 414     UINT32                  ComponentId,
 415     void                    *Pointer)
 416 {
 417     AcpiGbl_NestingLevel++;
 418     AcpiUtTrackStackPtr ();
 419
 420     AcpiDebugPrint (ACPI_LV_FUNCTIONS,
 421         LineNumber, FunctionName, ModuleName, ComponentId,
 422         "%s %p\n", AcpiGbl_FnEntryStr, Pointer);
 423 }
 424
 425
 426 /*******************************************************************************
 427  *
 428  * FUNCTION:    AcpiUtTraceStr
 429  *
 430  * PARAMETERS:  LineNumber          - Caller's line number
 431  *              FunctionName        - Caller's procedure name
 432  *              ModuleName          - Caller's module name
 433  *              ComponentId         - Caller's component ID
 434  *              String              - Additional string to display
 435  *
 436  * RETURN:      None
 437  *
 438  * DESCRIPTION: Function entry trace.  Prints only if TRACE_FUNCTIONS bit is
 439  *              set in DebugLevel
 440  *
 441  ******************************************************************************/
 442
 443 void
 444 AcpiUtTraceStr (
 445     UINT32                  LineNumber,
 446     const char              *FunctionName,
 447     const char              *ModuleName,
 448     UINT32                  ComponentId,
 449     char                    *String)
 450 {
 451
 452     AcpiGbl_NestingLevel++;
 453     AcpiUtTrackStackPtr ();
 454
 455     AcpiDebugPrint (ACPI_LV_FUNCTIONS,
 456         LineNumber, FunctionName, ModuleName, ComponentId,
 457         "%s %s\n", AcpiGbl_FnEntryStr, String);
 458 }
 459
 460
 461 /*******************************************************************************
 462  *
 463  * FUNCTION:    AcpiUtTraceU32
 464  *
 465  * PARAMETERS:  LineNumber          - Caller's line number
 466  *              FunctionName        - Caller's procedure name
 467  *              ModuleName          - Caller's module name
 468  *              ComponentId         - Caller's component ID
 469  *              Integer             - Integer to display
 470  *
 471  * RETURN:      None
 472  *
 473  * DESCRIPTION: Function entry trace.  Prints only if TRACE_FUNCTIONS bit is
 474  *              set in DebugLevel
 475  *
 476  ******************************************************************************/
 477
 478 void
 479 AcpiUtTraceU32 (
 480     UINT32                  LineNumber,
 481     const char              *FunctionName,
 482     const char              *ModuleName,
 483     UINT32                  ComponentId,
 484     UINT32                  Integer)
 485 {
 486
 487     AcpiGbl_NestingLevel++;
 488     AcpiUtTrackStackPtr ();
 489
 490     AcpiDebugPrint (ACPI_LV_FUNCTIONS,
 491         LineNumber, FunctionName, ModuleName, ComponentId,
 492         "%s %08X\n", AcpiGbl_FnEntryStr, Integer);
 493 }
 494
 495
 496 /*******************************************************************************
 497  *
 498  * FUNCTION:    AcpiUtExit
 499  *
 500  * PARAMETERS:  LineNumber          - Caller's line number
 501  *              FunctionName        - Caller's procedure name
 502  *              ModuleName          - Caller's module name
 503  *              ComponentId         - Caller's component ID
 504  *
 505  * RETURN:      None
 506  *
 507  * DESCRIPTION: Function exit trace.  Prints only if TRACE_FUNCTIONS bit is
 508  *              set in DebugLevel
 509  *
 510  ******************************************************************************/
 511
 512 void
 513 AcpiUtExit (
 514     UINT32                  LineNumber,
 515     const char              *FunctionName,
 516     const char              *ModuleName,
 517     UINT32                  ComponentId)
 518 {
 519
 520     AcpiDebugPrint (ACPI_LV_FUNCTIONS,
 521         LineNumber, FunctionName, ModuleName, ComponentId,
 522         "%s\n", AcpiGbl_FnExitStr);
 523
 524     AcpiGbl_NestingLevel--;
 525 }
 526
 527 ACPI_EXPORT_SYMBOL (AcpiUtExit)
 528
 529
 530 /*******************************************************************************
 531  *
 532  * FUNCTION:    AcpiUtStatusExit
 533  *
 534  * PARAMETERS:  LineNumber          - Caller's line number
 535  *              FunctionName        - Caller's procedure name
 536  *              ModuleName          - Caller's module name
 537  *              ComponentId         - Caller's component ID
 538  *              Status              - Exit status code
 539  *
 540  * RETURN:      None
 541  *
 542  * DESCRIPTION: Function exit trace.  Prints only if TRACE_FUNCTIONS bit is
 543  *              set in DebugLevel.  Prints exit status also.
 544  *
 545  ******************************************************************************/
 546
 547 void
 548 AcpiUtStatusExit (
 549     UINT32                  LineNumber,
 550     const char              *FunctionName,
 551     const char              *ModuleName,
 552     UINT32                  ComponentId,
 553     ACPI_STATUS             Status)
 554 {
 555
 556     if (ACPI_SUCCESS (Status))
 557     {
 558         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
 559             LineNumber, FunctionName, ModuleName, ComponentId,
 560             "%s %s\n", AcpiGbl_FnExitStr,
 561             AcpiFormatException (Status));
 562     }
 563     else
 564     {
 565         AcpiDebugPrint (ACPI_LV_FUNCTIONS,
 566             LineNumber, FunctionName, ModuleName, ComponentId,
 567             "%s ****Exception****: %s\n", AcpiGbl_FnExitStr,
 568             AcpiFormatException (Status));
 569     }
 570
 571     AcpiGbl_NestingLevel--;
 572 }
 573
 574 ACPI_EXPORT_SYMBOL (AcpiUtStatusExit)
 575
 576
 577 /*******************************************************************************
 578  *
 579  * FUNCTION:    AcpiUtValueExit
 580  *
 581  * PARAMETERS:  LineNumber          - Caller's line number
 582  *              FunctionName        - Caller's procedure name
 583  *              ModuleName          - Caller's module name
 584  *              ComponentId         - Caller's component ID
 585  *              Value               - Value to be printed with exit msg
 586  *
 587  * RETURN:      None
 588  *
 589  * DESCRIPTION: Function exit trace.  Prints only if TRACE_FUNCTIONS bit is
 590  *              set in DebugLevel.  Prints exit value also.
 591  *
 592  ******************************************************************************/
 593
 594 void
 595 AcpiUtValueExit (
 596     UINT32                  LineNumber,
 597     const char              *FunctionName,
 598     const char              *ModuleName,
 599     UINT32                  ComponentId,
 600     UINT64                  Value)
 601 {
 602
 603     AcpiDebugPrint (ACPI_LV_FUNCTIONS,
 604         LineNumber, FunctionName, ModuleName, ComponentId,
 605         "%s %8.8X%8.8X\n", AcpiGbl_FnExitStr,
 606         ACPI_FORMAT_UINT64 (Value));
 607
 608     AcpiGbl_NestingLevel--;
 609 }
 610
 611 ACPI_EXPORT_SYMBOL (AcpiUtValueExit)
 612
 613
 614 /*******************************************************************************
 615  *
 616  * FUNCTION:    AcpiUtPtrExit
 617  *
 618  * PARAMETERS:  LineNumber          - Caller's line number
 619  *              FunctionName        - Caller's procedure name
 620  *              ModuleName          - Caller's module name
 621  *              ComponentId         - Caller's component ID
 622  *              Ptr                 - Pointer to display
 623  *
 624  * RETURN:      None
 625  *
 626  * DESCRIPTION: Function exit trace.  Prints only if TRACE_FUNCTIONS bit is
 627  *              set in DebugLevel.  Prints exit value also.
 628  *
 629  ******************************************************************************/
 630
 631 void
 632 AcpiUtPtrExit (
 633     UINT32                  LineNumber,
 634     const char              *FunctionName,
 635     const char              *ModuleName,
 636     UINT32                  ComponentId,
 637     UINT8                   *Ptr)
 638 {
 639
 640     AcpiDebugPrint (ACPI_LV_FUNCTIONS,
 641         LineNumber, FunctionName, ModuleName, ComponentId,
 642         "%s %p\n", AcpiGbl_FnExitStr, Ptr);
 643
 644     AcpiGbl_NestingLevel--;
 645 }
 646
 647 #endif
 648
 649
 650 /*******************************************************************************
 651  *
 652  * FUNCTION:    AcpiUtDumpBuffer
 653  *
 654  * PARAMETERS:  Buffer              - Buffer to dump
 655  *              Count               - Amount to dump, in bytes
 656  *              Display             - BYTE, WORD, DWORD, or QWORD display
 657  *              ComponentID         - Caller's component ID
 658  *
 659  * RETURN:      None
 660  *
 661  * DESCRIPTION: Generic dump buffer in both hex and ascii.
 662  *
 663  ******************************************************************************/
 664
 665 void
 666 AcpiUtDumpBuffer2 (
 667     UINT8                   *Buffer,
 668     UINT32                  Count,
 669     UINT32                  Display)
 670 {
 671     UINT32                  i = 0;
 672     UINT32                  j;
 673     UINT32                  Temp32;
 674     UINT8                   BufChar;
 675
 676
 677     if (!Buffer)
 678     {
 679         AcpiOsPrintf ("Null Buffer Pointer in DumpBuffer!\n");
 680         return;
 681     }
 682
 683     if ((Count < 4) || (Count & 0x01))
 684     {
 685         Display = DB_BYTE_DISPLAY;
 686     }
 687
 688     /* Nasty little dump buffer routine! */
 689
 690     while (i < Count)
 691     {
 692         /* Print current offset */
 693
 694         AcpiOsPrintf ("%6.4X: ", i);
 695
 696         /* Print 16 hex chars */
 697
 698         for (j = 0; j < 16;)
 699         {
 700             if (i + j >= Count)
 701             {
 702                 /* Dump fill spaces */
 703
 704                 AcpiOsPrintf ("%*s", ((Display * 2) + 1), " ");
 705                 j += Display;
 706                 continue;
 707             }
 708
 709             switch (Display)
 710             {
 711             case DB_BYTE_DISPLAY:
 712             default:    /* Default is BYTE display */
 713
 714                 AcpiOsPrintf ("%02X ", Buffer[(ACPI_SIZE) i + j]);
 715                 break;
 716
 717
 718             case DB_WORD_DISPLAY:
 719
 720                 ACPI_MOVE_16_TO_32 (&Temp32, &Buffer[(ACPI_SIZE) i + j]);
 721                 AcpiOsPrintf ("%04X ", Temp32);
 722                 break;
 723
 724
 725             case DB_DWORD_DISPLAY:
 726
 727                 ACPI_MOVE_32_TO_32 (&Temp32, &Buffer[(ACPI_SIZE) i + j]);
 728                 AcpiOsPrintf ("%08X ", Temp32);
 729                 break;
 730
 731
 732             case DB_QWORD_DISPLAY:
 733
 734                 ACPI_MOVE_32_TO_32 (&Temp32, &Buffer[(ACPI_SIZE) i + j]);
 735                 AcpiOsPrintf ("%08X", Temp32);
 736
 737                 ACPI_MOVE_32_TO_32 (&Temp32, &Buffer[(ACPI_SIZE) i + j + 4]);
 738                 AcpiOsPrintf ("%08X ", Temp32);
 739                 break;
 740             }
 741
 742             j += Display;
 743         }
 744
 745         /*
 746          * Print the ASCII equivalent characters but watch out for the bad
 747          * unprintable ones (printable chars are 0x20 through 0x7E)
 748          */
 749         AcpiOsPrintf (" ");
 750         for (j = 0; j < 16; j++)
 751         {
 752             if (i + j >= Count)
 753             {
 754                 AcpiOsPrintf ("\n");
 755                 return;
 756             }
 757
 758             BufChar = Buffer[(ACPI_SIZE) i + j];
 759             if (ACPI_IS_PRINT (BufChar))
 760             {
 761                 AcpiOsPrintf ("%c", BufChar);
 762             }
 763             else
 764             {
 765                 AcpiOsPrintf (".");
 766             }
 767         }
 768
 769         /* Done with that line. */
 770
 771         AcpiOsPrintf ("\n");
 772         i += 16;
 773     }
 774
 775     return;
 776 }
 777
 778
 779 /*******************************************************************************
 780  *
 781  * FUNCTION:    AcpiUtDumpBuffer
 782  *
 783  * PARAMETERS:  Buffer              - Buffer to dump
 784  *              Count               - Amount to dump, in bytes
 785  *              Display             - BYTE, WORD, DWORD, or QWORD display
 786  *              ComponentID         - Caller's component ID
 787  *
 788  * RETURN:      None
 789  *
 790  * DESCRIPTION: Generic dump buffer in both hex and ascii.
 791  *
 792  ******************************************************************************/
 793
 794 void
 795 AcpiUtDumpBuffer (
 796     UINT8                   *Buffer,
 797     UINT32                  Count,
 798     UINT32                  Display,
 799     UINT32                  ComponentId)
 800 {
 801
 802     /* Only dump the buffer if tracing is enabled */
 803
 804     if (!((ACPI_LV_TABLES & AcpiDbgLevel) &&
 805         (ComponentId & AcpiDbgLayer)))
 806     {
 807         return;
 808     }
 809
 810     AcpiUtDumpBuffer2 (Buffer, Count, Display);
 811 }
 812
 813