drivers/acpi/utilities/utglobal.c

   1 /******************************************************************************
   2  *
   3  * Module Name: utglobal - Global variables for the ACPI subsystem
   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 __UTGLOBAL_C__
 117 #define DEFINE_ACPI_GLOBALS
 118
 119 #include "acpi.h"
 120 #include "accommon.h"
 121 #include "acnamesp.h"
 122
 123 #define _COMPONENT          ACPI_UTILITIES
 124         ACPI_MODULE_NAME    ("utglobal")
 125
 126
 127 /*******************************************************************************
 128  *
 129  * Static global variable initialization.
 130  *
 131  ******************************************************************************/
 132
 133 /*
 134  * We want the debug switches statically initialized so they
 135  * are already set when the debugger is entered.
 136  */
 137
 138 /* Debug switch - level and trace mask */
 139
 140 #ifdef ACPI_DEBUG_OUTPUT
 141 UINT32                      AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
 142 #else
 143 UINT32                      AcpiDbgLevel = ACPI_NORMAL_DEFAULT;
 144 #endif
 145
 146 /* Debug switch - layer (component) mask */
 147
 148 UINT32                      AcpiDbgLayer = ACPI_COMPONENT_DEFAULT;
 149 UINT32                      AcpiGbl_NestingLevel = 0;
 150
 151 /* Debugger globals */
 152
 153 BOOLEAN                     AcpiGbl_DbTerminateThreads = FALSE;
 154 BOOLEAN                     AcpiGbl_AbortMethod = FALSE;
 155 BOOLEAN                     AcpiGbl_MethodExecuting = FALSE;
 156
 157 /* System flags */
 158
 159 UINT32                      AcpiGbl_StartupFlags = 0;
 160
 161 /* System starts uninitialized */
 162
 163 BOOLEAN                     AcpiGbl_Shutdown = TRUE;
 164
 165 const char                  *AcpiGbl_SleepStateNames[ACPI_S_STATE_COUNT] =
 166 {
 167     "\\_S0_",
 168     "\\_S1_",
 169     "\\_S2_",
 170     "\\_S3_",
 171     "\\_S4_",
 172     "\\_S5_"
 173 };
 174
 175 const char                  *AcpiGbl_LowestDstateNames[ACPI_NUM_SxW_METHODS] =
 176 {
 177     "_S0W",
 178     "_S1W",
 179     "_S2W",
 180     "_S3W",
 181     "_S4W"
 182 };
 183
 184 const char                  *AcpiGbl_HighestDstateNames[ACPI_NUM_SxD_METHODS] =
 185 {
 186     "_S1D",
 187     "_S2D",
 188     "_S3D",
 189     "_S4D"
 190 };
 191
 192
 193 /*******************************************************************************
 194  *
 195  * FUNCTION:    AcpiFormatException
 196  *
 197  * PARAMETERS:  Status       - The ACPI_STATUS code to be formatted
 198  *
 199  * RETURN:      A string containing the exception text. A valid pointer is
 200  *              always returned.
 201  *
 202  * DESCRIPTION: This function translates an ACPI exception into an ASCII string
 203  *              It is here instead of utxface.c so it is always present.
 204  *
 205  ******************************************************************************/
 206
 207 const char *
 208 AcpiFormatException (
 209     ACPI_STATUS             Status)
 210 {
 211     const char              *Exception = NULL;
 212
 213
 214     ACPI_FUNCTION_ENTRY ();
 215
 216
 217     Exception = AcpiUtValidateException (Status);
 218     if (!Exception)
 219     {
 220         /* Exception code was not recognized */
 221
 222         ACPI_ERROR ((AE_INFO,
 223             "Unknown exception code: 0x%8.8X", Status));
 224
 225         Exception = "UNKNOWN_STATUS_CODE";
 226     }
 227
 228     return (ACPI_CAST_PTR (const char, Exception));
 229 }
 230
 231 ACPI_EXPORT_SYMBOL (AcpiFormatException)
 232
 233
 234 /*******************************************************************************
 235  *
 236  * Namespace globals
 237  *
 238  ******************************************************************************/
 239
 240 /*
 241  * Predefined ACPI Names (Built-in to the Interpreter)
 242  *
 243  * NOTES:
 244  * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
 245  *    during the initialization sequence.
 246  * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
 247  *    perform a Notify() operation on it.
 248  */
 249 const ACPI_PREDEFINED_NAMES     AcpiGbl_PreDefinedNames[] =
 250 {
 251     {"_GPE",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
 252     {"_PR_",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
 253     {"_SB_",    ACPI_TYPE_DEVICE,           NULL},
 254     {"_SI_",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
 255     {"_TZ_",    ACPI_TYPE_THERMAL,          NULL},
 256     {"_REV",    ACPI_TYPE_INTEGER,          (char *) ACPI_CA_SUPPORT_LEVEL},
 257     {"_OS_",    ACPI_TYPE_STRING,           ACPI_OS_NAME},
 258     {"_GL_",    ACPI_TYPE_MUTEX,            (char *) 1},
 259
 260 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
 261     {"_OSI",    ACPI_TYPE_METHOD,           (char *) 1},
 262 #endif
 263
 264     /* Table terminator */
 265
 266     {NULL,      ACPI_TYPE_ANY,              NULL}
 267 };
 268
 269 /*
 270  * Properties of the ACPI Object Types, both internal and external.
 271  * The table is indexed by values of ACPI_OBJECT_TYPE
 272  */
 273 const UINT8                     AcpiGbl_NsProperties[ACPI_NUM_NS_TYPES] =
 274 {
 275     ACPI_NS_NORMAL,                     /* 00 Any              */
 276     ACPI_NS_NORMAL,                     /* 01 Number           */
 277     ACPI_NS_NORMAL,                     /* 02 String           */
 278     ACPI_NS_NORMAL,                     /* 03 Buffer           */
 279     ACPI_NS_NORMAL,                     /* 04 Package          */
 280     ACPI_NS_NORMAL,                     /* 05 FieldUnit        */
 281     ACPI_NS_NEWSCOPE,                   /* 06 Device           */
 282     ACPI_NS_NORMAL,                     /* 07 Event            */
 283     ACPI_NS_NEWSCOPE,                   /* 08 Method           */
 284     ACPI_NS_NORMAL,                     /* 09 Mutex            */
 285     ACPI_NS_NORMAL,                     /* 10 Region           */
 286     ACPI_NS_NEWSCOPE,                   /* 11 Power            */
 287     ACPI_NS_NEWSCOPE,                   /* 12 Processor        */
 288     ACPI_NS_NEWSCOPE,                   /* 13 Thermal          */
 289     ACPI_NS_NORMAL,                     /* 14 BufferField      */
 290     ACPI_NS_NORMAL,                     /* 15 DdbHandle        */
 291     ACPI_NS_NORMAL,                     /* 16 Debug Object     */
 292     ACPI_NS_NORMAL,                     /* 17 DefField         */
 293     ACPI_NS_NORMAL,                     /* 18 BankField        */
 294     ACPI_NS_NORMAL,                     /* 19 IndexField       */
 295     ACPI_NS_NORMAL,                     /* 20 Reference        */
 296     ACPI_NS_NORMAL,                     /* 21 Alias            */
 297     ACPI_NS_NORMAL,                     /* 22 MethodAlias      */
 298     ACPI_NS_NORMAL,                     /* 23 Notify           */
 299     ACPI_NS_NORMAL,                     /* 24 Address Handler  */
 300     ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL,   /* 25 Resource Desc    */
 301     ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL,   /* 26 Resource Field   */
 302     ACPI_NS_NEWSCOPE,                   /* 27 Scope            */
 303     ACPI_NS_NORMAL,                     /* 28 Extra            */
 304     ACPI_NS_NORMAL,                     /* 29 Data             */
 305     ACPI_NS_NORMAL                      /* 30 Invalid          */
 306 };
 307
 308
 309 /* Hex to ASCII conversion table */
 310
 311 static const char           AcpiGbl_HexToAscii[] =
 312 {
 313     '0','1','2','3','4','5','6','7',
 314     '8','9','A','B','C','D','E','F'
 315 };
 316
 317
 318 /*******************************************************************************
 319  *
 320  * FUNCTION:    AcpiUtHexToAsciiChar
 321  *
 322  * PARAMETERS:  Integer             - Contains the hex digit
 323  *              Position            - bit position of the digit within the
 324  *                                    integer (multiple of 4)
 325  *
 326  * RETURN:      The converted Ascii character
 327  *
 328  * DESCRIPTION: Convert a hex digit to an Ascii character
 329  *
 330  ******************************************************************************/
 331
 332 char
 333 AcpiUtHexToAsciiChar (
 334     UINT64                  Integer,
 335     UINT32                  Position)
 336 {
 337
 338     return (AcpiGbl_HexToAscii[(Integer >> Position) & 0xF]);
 339 }
 340
 341
 342 /******************************************************************************
 343  *
 344  * Event and Hardware globals
 345  *
 346  ******************************************************************************/
 347
 348 ACPI_BIT_REGISTER_INFO      AcpiGbl_BitRegisterInfo[ACPI_NUM_BITREG] =
 349 {
 350     /* Name                                     Parent Register             Register Bit Position                   Register Bit Mask       */
 351
 352     /* ACPI_BITREG_TIMER_STATUS         */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_TIMER_STATUS,          ACPI_BITMASK_TIMER_STATUS},
 353     /* ACPI_BITREG_BUS_MASTER_STATUS    */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_BUS_MASTER_STATUS,     ACPI_BITMASK_BUS_MASTER_STATUS},
 354     /* ACPI_BITREG_GLOBAL_LOCK_STATUS   */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,    ACPI_BITMASK_GLOBAL_LOCK_STATUS},
 355     /* ACPI_BITREG_POWER_BUTTON_STATUS  */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_POWER_BUTTON_STATUS,   ACPI_BITMASK_POWER_BUTTON_STATUS},
 356     /* ACPI_BITREG_SLEEP_BUTTON_STATUS  */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,   ACPI_BITMASK_SLEEP_BUTTON_STATUS},
 357     /* ACPI_BITREG_RT_CLOCK_STATUS      */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_RT_CLOCK_STATUS,       ACPI_BITMASK_RT_CLOCK_STATUS},
 358     /* ACPI_BITREG_WAKE_STATUS          */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_WAKE_STATUS,           ACPI_BITMASK_WAKE_STATUS},
 359     /* ACPI_BITREG_PCIEXP_WAKE_STATUS   */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,    ACPI_BITMASK_PCIEXP_WAKE_STATUS},
 360
 361     /* ACPI_BITREG_TIMER_ENABLE         */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_TIMER_ENABLE,          ACPI_BITMASK_TIMER_ENABLE},
 362     /* ACPI_BITREG_GLOBAL_LOCK_ENABLE   */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,    ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 363     /* ACPI_BITREG_POWER_BUTTON_ENABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_POWER_BUTTON_ENABLE,   ACPI_BITMASK_POWER_BUTTON_ENABLE},
 364     /* ACPI_BITREG_SLEEP_BUTTON_ENABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,   ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 365     /* ACPI_BITREG_RT_CLOCK_ENABLE      */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_RT_CLOCK_ENABLE,       ACPI_BITMASK_RT_CLOCK_ENABLE},
 366     /* ACPI_BITREG_PCIEXP_WAKE_DISABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,   ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
 367
 368     /* ACPI_BITREG_SCI_ENABLE           */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SCI_ENABLE,            ACPI_BITMASK_SCI_ENABLE},
 369     /* ACPI_BITREG_BUS_MASTER_RLD       */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_BUS_MASTER_RLD,        ACPI_BITMASK_BUS_MASTER_RLD},
 370     /* ACPI_BITREG_GLOBAL_LOCK_RELEASE  */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,   ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
 371     /* ACPI_BITREG_SLEEP_TYPE           */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SLEEP_TYPE,            ACPI_BITMASK_SLEEP_TYPE},
 372     /* ACPI_BITREG_SLEEP_ENABLE         */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SLEEP_ENABLE,          ACPI_BITMASK_SLEEP_ENABLE},
 373
 374     /* ACPI_BITREG_ARB_DIS              */   {ACPI_REGISTER_PM2_CONTROL,  ACPI_BITPOSITION_ARB_DISABLE,           ACPI_BITMASK_ARB_DISABLE}
 375 };
 376
 377
 378 ACPI_FIXED_EVENT_INFO       AcpiGbl_FixedEventInfo[ACPI_NUM_FIXED_EVENTS] =
 379 {
 380     /* ACPI_EVENT_PMTIMER       */  {ACPI_BITREG_TIMER_STATUS,          ACPI_BITREG_TIMER_ENABLE,        ACPI_BITMASK_TIMER_STATUS,          ACPI_BITMASK_TIMER_ENABLE},
 381     /* ACPI_EVENT_GLOBAL        */  {ACPI_BITREG_GLOBAL_LOCK_STATUS,    ACPI_BITREG_GLOBAL_LOCK_ENABLE,  ACPI_BITMASK_GLOBAL_LOCK_STATUS,    ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 382     /* ACPI_EVENT_POWER_BUTTON  */  {ACPI_BITREG_POWER_BUTTON_STATUS,   ACPI_BITREG_POWER_BUTTON_ENABLE, ACPI_BITMASK_POWER_BUTTON_STATUS,   ACPI_BITMASK_POWER_BUTTON_ENABLE},
 383     /* ACPI_EVENT_SLEEP_BUTTON  */  {ACPI_BITREG_SLEEP_BUTTON_STATUS,   ACPI_BITREG_SLEEP_BUTTON_ENABLE, ACPI_BITMASK_SLEEP_BUTTON_STATUS,   ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 384     /* ACPI_EVENT_RTC           */  {ACPI_BITREG_RT_CLOCK_STATUS,       ACPI_BITREG_RT_CLOCK_ENABLE,     ACPI_BITMASK_RT_CLOCK_STATUS,       ACPI_BITMASK_RT_CLOCK_ENABLE},
 385 };
 386
 387 /*******************************************************************************
 388  *
 389  * FUNCTION:    AcpiUtGetRegionName
 390  *
 391  * PARAMETERS:  None.
 392  *
 393  * RETURN:      Status
 394  *
 395  * DESCRIPTION: Translate a Space ID into a name string (Debug only)
 396  *
 397  ******************************************************************************/
 398
 399 /* Region type decoding */
 400
 401 const char        *AcpiGbl_RegionTypes[ACPI_NUM_PREDEFINED_REGIONS] =
 402 {
 403     "SystemMemory",
 404     "SystemIO",
 405     "PCI_Config",
 406     "EmbeddedControl",
 407     "SMBus",
 408     "SystemCMOS",
 409     "PCIBARTarget",
 410     "IPMI",
 411     "DataTable"
 412 };
 413
 414
 415 char *
 416 AcpiUtGetRegionName (
 417     UINT8                   SpaceId)
 418 {
 419
 420     if (SpaceId >= ACPI_USER_REGION_BEGIN)
 421     {
 422         return ("UserDefinedRegion");
 423     }
 424     else if (SpaceId >= ACPI_NUM_PREDEFINED_REGIONS)
 425     {
 426         return ("InvalidSpaceId");
 427     }
 428
 429     return (ACPI_CAST_PTR (char, AcpiGbl_RegionTypes[SpaceId]));
 430 }
 431
 432
 433 /*******************************************************************************
 434  *
 435  * FUNCTION:    AcpiUtGetEventName
 436  *
 437  * PARAMETERS:  None.
 438  *
 439  * RETURN:      Status
 440  *
 441  * DESCRIPTION: Translate a Event ID into a name string (Debug only)
 442  *
 443  ******************************************************************************/
 444
 445 /* Event type decoding */
 446
 447 static const char        *AcpiGbl_EventTypes[ACPI_NUM_FIXED_EVENTS] =
 448 {
 449     "PM_Timer",
 450     "GlobalLock",
 451     "PowerButton",
 452     "SleepButton",
 453     "RealTimeClock",
 454 };
 455
 456
 457 char *
 458 AcpiUtGetEventName (
 459     UINT32                  EventId)
 460 {
 461
 462     if (EventId > ACPI_EVENT_MAX)
 463     {
 464         return ("InvalidEventID");
 465     }
 466
 467     return (ACPI_CAST_PTR (char, AcpiGbl_EventTypes[EventId]));
 468 }
 469
 470
 471 /*******************************************************************************
 472  *
 473  * FUNCTION:    AcpiUtGetTypeName
 474  *
 475  * PARAMETERS:  None.
 476  *
 477  * RETURN:      Status
 478  *
 479  * DESCRIPTION: Translate a Type ID into a name string (Debug only)
 480  *
 481  ******************************************************************************/
 482
 483 /*
 484  * Elements of AcpiGbl_NsTypeNames below must match
 485  * one-to-one with values of ACPI_OBJECT_TYPE
 486  *
 487  * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching;
 488  * when stored in a table it really means that we have thus far seen no
 489  * evidence to indicate what type is actually going to be stored for this entry.
 490  */
 491 static const char           AcpiGbl_BadType[] = "UNDEFINED";
 492
 493 /* Printable names of the ACPI object types */
 494
 495 static const char           *AcpiGbl_NsTypeNames[] =
 496 {
 497     /* 00 */ "Untyped",
 498     /* 01 */ "Integer",
 499     /* 02 */ "String",
 500     /* 03 */ "Buffer",
 501     /* 04 */ "Package",
 502     /* 05 */ "FieldUnit",
 503     /* 06 */ "Device",
 504     /* 07 */ "Event",
 505     /* 08 */ "Method",
 506     /* 09 */ "Mutex",
 507     /* 10 */ "Region",
 508     /* 11 */ "Power",
 509     /* 12 */ "Processor",
 510     /* 13 */ "Thermal",
 511     /* 14 */ "BufferField",
 512     /* 15 */ "DdbHandle",
 513     /* 16 */ "DebugObject",
 514     /* 17 */ "RegionField",
 515     /* 18 */ "BankField",
 516     /* 19 */ "IndexField",
 517     /* 20 */ "Reference",
 518     /* 21 */ "Alias",
 519     /* 22 */ "MethodAlias",
 520     /* 23 */ "Notify",
 521     /* 24 */ "AddrHandler",
 522     /* 25 */ "ResourceDesc",
 523     /* 26 */ "ResourceFld",
 524     /* 27 */ "Scope",
 525     /* 28 */ "Extra",
 526     /* 29 */ "Data",
 527     /* 30 */ "Invalid"
 528 };
 529
 530
 531 char *
 532 AcpiUtGetTypeName (
 533     ACPI_OBJECT_TYPE        Type)
 534 {
 535
 536     if (Type > ACPI_TYPE_INVALID)
 537     {
 538         return (ACPI_CAST_PTR (char, AcpiGbl_BadType));
 539     }
 540
 541     return (ACPI_CAST_PTR (char, AcpiGbl_NsTypeNames[Type]));
 542 }
 543
 544
 545 char *
 546 AcpiUtGetObjectTypeName (
 547     ACPI_OPERAND_OBJECT     *ObjDesc)
 548 {
 549
 550     if (!ObjDesc)
 551     {
 552         return ("[NULL Object Descriptor]");
 553     }
 554
 555     return (AcpiUtGetTypeName (ObjDesc->Common.Type));
 556 }
 557
 558
 559 /*******************************************************************************
 560  *
 561  * FUNCTION:    AcpiUtGetNodeName
 562  *
 563  * PARAMETERS:  Object               - A namespace node
 564  *
 565  * RETURN:      Pointer to a string
 566  *
 567  * DESCRIPTION: Validate the node and return the node's ACPI name.
 568  *
 569  ******************************************************************************/
 570
 571 char *
 572 AcpiUtGetNodeName (
 573     void                    *Object)
 574 {
 575     ACPI_NAMESPACE_NODE     *Node = (ACPI_NAMESPACE_NODE *) Object;
 576
 577
 578     /* Must return a string of exactly 4 characters == ACPI_NAME_SIZE */
 579
 580     if (!Object)
 581     {
 582         return ("NULL");
 583     }
 584
 585     /* Check for Root node */
 586
 587     if ((Object == ACPI_ROOT_OBJECT) ||
 588         (Object == AcpiGbl_RootNode))
 589     {
 590         return ("\"\\\" ");
 591     }
 592
 593     /* Descriptor must be a namespace node */
 594
 595     if (ACPI_GET_DESCRIPTOR_TYPE (Node) != ACPI_DESC_TYPE_NAMED)
 596     {
 597         return ("####");
 598     }
 599
 600     /*
 601      * Ensure name is valid. The name was validated/repaired when the node
 602      * was created, but make sure it has not been corrupted.
 603      */
 604     AcpiUtRepairName (Node->Name.Ascii);
 605
 606     /* Return the name */
 607
 608     return (Node->Name.Ascii);
 609 }
 610
 611
 612 /*******************************************************************************
 613  *
 614  * FUNCTION:    AcpiUtGetDescriptorName
 615  *
 616  * PARAMETERS:  Object               - An ACPI object
 617  *
 618  * RETURN:      Pointer to a string
 619  *
 620  * DESCRIPTION: Validate object and return the descriptor type
 621  *
 622  ******************************************************************************/
 623
 624 /* Printable names of object descriptor types */
 625
 626 static const char           *AcpiGbl_DescTypeNames[] =
 627 {
 628     /* 00 */ "Not a Descriptor",
 629     /* 01 */ "Cached",
 630     /* 02 */ "State-Generic",
 631     /* 03 */ "State-Update",
 632     /* 04 */ "State-Package",
 633     /* 05 */ "State-Control",
 634     /* 06 */ "State-RootParseScope",
 635     /* 07 */ "State-ParseScope",
 636     /* 08 */ "State-WalkScope",
 637     /* 09 */ "State-Result",
 638     /* 10 */ "State-Notify",
 639     /* 11 */ "State-Thread",
 640     /* 12 */ "Walk",
 641     /* 13 */ "Parser",
 642     /* 14 */ "Operand",
 643     /* 15 */ "Node"
 644 };
 645
 646
 647 char *
 648 AcpiUtGetDescriptorName (
 649     void                    *Object)
 650 {
 651
 652     if (!Object)
 653     {
 654         return ("NULL OBJECT");
 655     }
 656
 657     if (ACPI_GET_DESCRIPTOR_TYPE (Object) > ACPI_DESC_TYPE_MAX)
 658     {
 659         return ("Not a Descriptor");
 660     }
 661
 662     return (ACPI_CAST_PTR (char,
 663         AcpiGbl_DescTypeNames[ACPI_GET_DESCRIPTOR_TYPE (Object)]));
 664
 665 }
 666
 667
 668 /*******************************************************************************
 669  *
 670  * FUNCTION:    AcpiUtGetReferenceName
 671  *
 672  * PARAMETERS:  Object               - An ACPI reference object
 673  *
 674  * RETURN:      Pointer to a string
 675  *
 676  * DESCRIPTION: Decode a reference object sub-type to a string.
 677  *
 678  ******************************************************************************/
 679
 680 /* Printable names of reference object sub-types */
 681
 682 static const char           *AcpiGbl_RefClassNames[] =
 683 {
 684     /* 00 */ "Local",
 685     /* 01 */ "Argument",
 686     /* 02 */ "RefOf",
 687     /* 03 */ "Index",
 688     /* 04 */ "DdbHandle",
 689     /* 05 */ "Named Object",
 690     /* 06 */ "Debug"
 691 };
 692
 693 const char *
 694 AcpiUtGetReferenceName (
 695     ACPI_OPERAND_OBJECT     *Object)
 696 {
 697
 698     if (!Object)
 699     {
 700         return ("NULL Object");
 701     }
 702
 703     if (ACPI_GET_DESCRIPTOR_TYPE (Object) != ACPI_DESC_TYPE_OPERAND)
 704     {
 705         return ("Not an Operand object");
 706     }
 707
 708     if (Object->Common.Type != ACPI_TYPE_LOCAL_REFERENCE)
 709     {
 710         return ("Not a Reference object");
 711     }
 712
 713     if (Object->Reference.Class > ACPI_REFCLASS_MAX)
 714     {
 715         return ("Unknown Reference class");
 716     }
 717
 718     return (AcpiGbl_RefClassNames[Object->Reference.Class]);
 719 }
 720
 721
 722 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
 723 /*
 724  * Strings and procedures used for debug only
 725  */
 726
 727 /*******************************************************************************
 728  *
 729  * FUNCTION:    AcpiUtGetMutexName
 730  *
 731  * PARAMETERS:  MutexId         - The predefined ID for this mutex.
 732  *
 733  * RETURN:      String containing the name of the mutex. Always returns a valid
 734  *              pointer.
 735  *
 736  * DESCRIPTION: Translate a mutex ID into a name string (Debug only)
 737  *
 738  ******************************************************************************/
 739
 740 char *
 741 AcpiUtGetMutexName (
 742     UINT32                  MutexId)
 743 {
 744
 745     if (MutexId > ACPI_MAX_MUTEX)
 746     {
 747         return ("Invalid Mutex ID");
 748     }
 749
 750     return (AcpiGbl_MutexNames[MutexId]);
 751 }
 752
 753
 754 /*******************************************************************************
 755  *
 756  * FUNCTION:    AcpiUtGetNotifyName
 757  *
 758  * PARAMETERS:  NotifyValue     - Value from the Notify() request
 759  *
 760  * RETURN:      String corresponding to the Notify Value.
 761  *
 762  * DESCRIPTION: Translate a Notify Value to a notify namestring.
 763  *
 764  ******************************************************************************/
 765
 766 /* Names for Notify() values, used for debug output */
 767
 768 static const char        *AcpiGbl_NotifyValueNames[] =
 769 {
 770     "Bus Check",
 771     "Device Check",
 772     "Device Wake",
 773     "Eject Request",
 774     "Device Check Light",
 775     "Frequency Mismatch",
 776     "Bus Mode Mismatch",
 777     "Power Fault",
 778     "Capabilities Check",
 779     "Device PLD Check",
 780     "Reserved",
 781     "System Locality Update"
 782 };
 783
 784 const char *
 785 AcpiUtGetNotifyName (
 786     UINT32                  NotifyValue)
 787 {
 788
 789     if (NotifyValue <= ACPI_NOTIFY_MAX)
 790     {
 791         return (AcpiGbl_NotifyValueNames[NotifyValue]);
 792     }
 793     else if (NotifyValue <= ACPI_MAX_SYS_NOTIFY)
 794     {
 795         return ("Reserved");
 796     }
 797     else /* Greater or equal to 0x80 */
 798     {
 799         return ("**Device Specific**");
 800     }
 801 }
 802 #endif
 803
 804
 805 /*******************************************************************************
 806  *
 807  * FUNCTION:    AcpiUtValidObjectType
 808  *
 809  * PARAMETERS:  Type            - Object type to be validated
 810  *
 811  * RETURN:      TRUE if valid object type, FALSE otherwise
 812  *
 813  * DESCRIPTION: Validate an object type
 814  *
 815  ******************************************************************************/
 816
 817 BOOLEAN
 818 AcpiUtValidObjectType (
 819     ACPI_OBJECT_TYPE        Type)
 820 {
 821
 822     if (Type > ACPI_TYPE_LOCAL_MAX)
 823     {
 824         /* Note: Assumes all TYPEs are contiguous (external/local) */
 825
 826         return (FALSE);
 827     }
 828
 829     return (TRUE);
 830 }
 831
 832
 833 /*******************************************************************************
 834  *
 835  * FUNCTION:    AcpiUtInitGlobals
 836  *
 837  * PARAMETERS:  None
 838  *
 839  * RETURN:      Status
 840  *
 841  * DESCRIPTION: Init library globals.  All globals that require specific
 842  *              initialization should be initialized here!
 843  *
 844  ******************************************************************************/
 845
 846 ACPI_STATUS
 847 AcpiUtInitGlobals (
 848     void)
 849 {
 850     ACPI_STATUS             Status;
 851     UINT32                  i;
 852
 853
 854     ACPI_FUNCTION_TRACE (UtInitGlobals);
 855
 856
 857     /* Create all memory caches */
 858
 859     Status = AcpiUtCreateCaches ();
 860     if (ACPI_FAILURE (Status))
 861     {
 862         return_ACPI_STATUS (Status);
 863     }
 864
 865     /* Mutex locked flags */
 866
 867     for (i = 0; i < ACPI_NUM_MUTEX; i++)
 868     {
 869         AcpiGbl_MutexInfo[i].Mutex          = NULL;
 870         AcpiGbl_MutexInfo[i].ThreadId       = ACPI_MUTEX_NOT_ACQUIRED;
 871         AcpiGbl_MutexInfo[i].UseCount       = 0;
 872     }
 873
 874     for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++)
 875     {
 876         AcpiGbl_OwnerIdMask[i]              = 0;
 877     }
 878
 879     /* Last OwnerID is never valid */
 880
 881     AcpiGbl_OwnerIdMask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000;
 882
 883     /* Event counters */
 884
 885     AcpiMethodCount                     = 0;
 886     AcpiSciCount                        = 0;
 887     AcpiGpeCount                        = 0;
 888
 889     for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++)
 890     {
 891         AcpiFixedEventCount[i]              = 0;
 892     }
 893
 894     /* GPE support */
 895
 896     AcpiGbl_GpeXruptListHead            = NULL;
 897     AcpiGbl_GpeFadtBlocks[0]            = NULL;
 898     AcpiGbl_GpeFadtBlocks[1]            = NULL;
 899     AcpiCurrentGpeCount                 = 0;
 900
 901     /* Global handlers */
 902
 903     AcpiGbl_SystemNotify.Handler        = NULL;
 904     AcpiGbl_DeviceNotify.Handler        = NULL;
 905     AcpiGbl_ExceptionHandler            = NULL;
 906     AcpiGbl_InitHandler                 = NULL;
 907     AcpiGbl_TableHandler                = NULL;
 908
 909     /* Global Lock support */
 910
 911     AcpiGbl_GlobalLockSemaphore         = NULL;
 912     AcpiGbl_GlobalLockMutex             = NULL;
 913     AcpiGbl_GlobalLockAcquired          = FALSE;
 914     AcpiGbl_GlobalLockHandle            = 0;
 915     AcpiGbl_GlobalLockPresent           = FALSE;
 916
 917     /* Miscellaneous variables */
 918
 919     AcpiGbl_DSDT                        = NULL;
 920     AcpiGbl_CmSingleStep                = FALSE;
 921     AcpiGbl_DbTerminateThreads          = FALSE;
 922     AcpiGbl_Shutdown                    = FALSE;
 923     AcpiGbl_NsLookupCount               = 0;
 924     AcpiGbl_PsFindCount                 = 0;
 925     AcpiGbl_AcpiHardwarePresent         = TRUE;
 926     AcpiGbl_LastOwnerIdIndex            = 0;
 927     AcpiGbl_NextOwnerIdOffset           = 0;
 928     AcpiGbl_TraceMethodName             = 0;
 929     AcpiGbl_TraceDbgLevel               = 0;
 930     AcpiGbl_TraceDbgLayer               = 0;
 931     AcpiGbl_DebuggerConfiguration       = DEBUGGER_THREADING;
 932     AcpiGbl_DbOutputFlags               = ACPI_DB_CONSOLE_OUTPUT;
 933     AcpiGbl_OsiData                     = 0;
 934
 935     /* Hardware oriented */
 936
 937     AcpiGbl_EventsInitialized           = FALSE;
 938     AcpiGbl_SystemAwakeAndRunning       = TRUE;
 939
 940     /* Namespace */
 941
 942     AcpiGbl_ModuleCodeList              = NULL;
 943     AcpiGbl_RootNode                    = NULL;
 944     AcpiGbl_RootNodeStruct.Name.Integer = ACPI_ROOT_NAME;
 945     AcpiGbl_RootNodeStruct.DescriptorType = ACPI_DESC_TYPE_NAMED;
 946     AcpiGbl_RootNodeStruct.Type         = ACPI_TYPE_DEVICE;
 947     AcpiGbl_RootNodeStruct.Parent       = NULL;
 948     AcpiGbl_RootNodeStruct.Child        = NULL;
 949     AcpiGbl_RootNodeStruct.Peer         = NULL;
 950     AcpiGbl_RootNodeStruct.Object       = NULL;
 951
 952
 953 #ifdef ACPI_DISASSEMBLER
 954     AcpiGbl_ExternalList                = NULL;
 955 #endif
 956
 957 #ifdef ACPI_DEBUG_OUTPUT
 958     AcpiGbl_LowestStackPointer          = ACPI_CAST_PTR (ACPI_SIZE, ACPI_SIZE_MAX);
 959 #endif
 960
 961 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
 962     AcpiGbl_DisplayFinalMemStats        = FALSE;
 963     AcpiGbl_DisableMemTracking          = FALSE;
 964 #endif
 965
 966     return_ACPI_STATUS (AE_OK);
 967 }
 968
 969 /* Public globals */
 970
 971 ACPI_EXPORT_SYMBOL (AcpiGbl_FADT)
 972 ACPI_EXPORT_SYMBOL (AcpiDbgLevel)
 973 ACPI_EXPORT_SYMBOL (AcpiDbgLayer)
 974 ACPI_EXPORT_SYMBOL (AcpiGpeCount)
 975 ACPI_EXPORT_SYMBOL (AcpiCurrentGpeCount)
 976
 977