drivers/acpi/utilities/utglobal.c

   1 /******************************************************************************
   2  *
   3  * Module Name: utglobal - Global variables for the ACPI subsystem
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2004, R. Byron Moore
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions, and the following disclaimer,
  16  *    without modification.
  17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  18  *    substantially similar to the "NO WARRANTY" disclaimer below
  19  *    ("Disclaimer") and any redistribution must be conditioned upon
  20  *    including a substantially similar Disclaimer requirement for further
  21  *    binary redistribution.
  22  * 3. Neither the names of the above-listed copyright holders nor the names
  23  *    of any contributors may be used to endorse or promote products derived
  24  *    from this software without specific prior written permission.
  25  *
  26  * Alternatively, this software may be distributed under the terms of the
  27  * GNU General Public License ("GPL") version 2 as published by the Free
  28  * Software Foundation.
  29  *
  30  * NO WARRANTY
  31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  41  * POSSIBILITY OF SUCH DAMAGES.
  42  */
  43
  44 #define DEFINE_ACPI_GLOBALS
  45
  46 #include <acpi/acpi.h>
  47 #include <acpi/acnamesp.h>
  48
  49 #define _COMPONENT          ACPI_UTILITIES
  50          ACPI_MODULE_NAME    ("utglobal")
  51
  52
  53 /******************************************************************************
  54  *
  55  * FUNCTION:    acpi_format_exception
  56  *
  57  * PARAMETERS:  Status       - The acpi_status code to be formatted
  58  *
  59  * RETURN:      A string containing the exception  text
  60  *
  61  * DESCRIPTION: This function translates an ACPI exception into an ASCII string.
  62  *
  63  ******************************************************************************/
  64
  65 const char *
  66 acpi_format_exception (
  67         acpi_status                     status)
  68 {
  69         const char                      *exception = "UNKNOWN_STATUS_CODE";
  70         acpi_status                     sub_status;
  71
  72
  73         ACPI_FUNCTION_NAME ("format_exception");
  74
  75
  76         sub_status = (status & ~AE_CODE_MASK);
  77
  78         switch (status & AE_CODE_MASK) {
  79         case AE_CODE_ENVIRONMENTAL:
  80
  81                 if (sub_status <= AE_CODE_ENV_MAX) {
  82                         exception = acpi_gbl_exception_names_env [sub_status];
  83                         break;
  84                 }
  85                 goto unknown;
  86
  87         case AE_CODE_PROGRAMMER:
  88
  89                 if (sub_status <= AE_CODE_PGM_MAX) {
  90                         exception = acpi_gbl_exception_names_pgm [sub_status -1];
  91                         break;
  92                 }
  93                 goto unknown;
  94
  95         case AE_CODE_ACPI_TABLES:
  96
  97                 if (sub_status <= AE_CODE_TBL_MAX) {
  98                         exception = acpi_gbl_exception_names_tbl [sub_status -1];
  99                         break;
 100                 }
 101                 goto unknown;
 102
 103         case AE_CODE_AML:
 104
 105                 if (sub_status <= AE_CODE_AML_MAX) {
 106                         exception = acpi_gbl_exception_names_aml [sub_status -1];
 107                         break;
 108                 }
 109                 goto unknown;
 110
 111         case AE_CODE_CONTROL:
 112
 113                 if (sub_status <= AE_CODE_CTRL_MAX) {
 114                         exception = acpi_gbl_exception_names_ctrl [sub_status -1];
 115                         break;
 116                 }
 117                 goto unknown;
 118
 119         default:
 120                 goto unknown;
 121         }
 122
 123
 124         return ((const char *) exception);
 125
 126 unknown:
 127
 128         ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown exception code: 0x%8.8X\n", status));
 129         return ((const char *) exception);
 130 }
 131
 132
 133 /******************************************************************************
 134  *
 135  * Static global variable initialization.
 136  *
 137  ******************************************************************************/
 138
 139 /*
 140  * We want the debug switches statically initialized so they
 141  * are already set when the debugger is entered.
 142  */
 143
 144 /* Debug switch - level and trace mask */
 145
 146 #ifdef ACPI_DEBUG_OUTPUT
 147 u32                                 acpi_dbg_level = ACPI_DEBUG_DEFAULT;
 148 #else
 149 u32                                 acpi_dbg_level = ACPI_NORMAL_DEFAULT;
 150 #endif
 151
 152 /* Debug switch - layer (component) mask */
 153
 154 u32                                 acpi_dbg_layer = ACPI_COMPONENT_DEFAULT;
 155 u32                                 acpi_gbl_nesting_level = 0;
 156
 157
 158 /* Debugger globals */
 159
 160 u8                                  acpi_gbl_db_terminate_threads = FALSE;
 161 u8                                  acpi_gbl_abort_method = FALSE;
 162 u8                                  acpi_gbl_method_executing = FALSE;
 163
 164 /* System flags */
 165
 166 u32                                 acpi_gbl_startup_flags = 0;
 167
 168 /* System starts uninitialized */
 169
 170 u8                                  acpi_gbl_shutdown = TRUE;
 171
 172 const u8                            acpi_gbl_decode_to8bit [8] = {1,2,4,8,16,32,64,128};
 173
 174 const char                          *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
 175                           "\\_S0_",
 176                           "\\_S1_",
 177                           "\\_S2_",
 178                           "\\_S3_",
 179                           "\\_S4_",
 180                           "\\_S5_"};
 181
 182 const char                          *acpi_gbl_highest_dstate_names[4] = {
 183                                            "_S1D",
 184                                            "_S2D",
 185                                            "_S3D",
 186                                            "_S4D"};
 187
 188 /* Strings supported by the _OSI predefined (internal) method */
 189
 190 const char                          *acpi_gbl_valid_osi_strings[ACPI_NUM_OSI_STRINGS] = {
 191                                                          "Linux",
 192                                                          "Windows 2000",
 193                                                          "Windows 2001",
 194                                                          "Windows 2001.1"};
 195
 196
 197 /******************************************************************************
 198  *
 199  * Namespace globals
 200  *
 201  ******************************************************************************/
 202
 203
 204 /*
 205  * Predefined ACPI Names (Built-in to the Interpreter)
 206  *
 207  * NOTES:
 208  * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
 209  *    during the initialization sequence.
 210  */
 211 const struct acpi_predefined_names      acpi_gbl_pre_defined_names[] =
 212 { {"_GPE",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
 213         {"_PR_",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
 214         {"_SB_",    ACPI_TYPE_DEVICE,           NULL},
 215         {"_SI_",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
 216         {"_TZ_",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
 217         {"_REV",    ACPI_TYPE_INTEGER,          "2"},
 218         {"_OS_",    ACPI_TYPE_STRING,           ACPI_OS_NAME},
 219         {"_GL_",    ACPI_TYPE_MUTEX,            "0"},
 220
 221 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
 222         {"_OSI",    ACPI_TYPE_METHOD,           "1"},
 223 #endif
 224         {NULL,      ACPI_TYPE_ANY,              NULL}              /* Table terminator */
 225 };
 226
 227
 228 /*
 229  * Properties of the ACPI Object Types, both internal and external.
 230  * The table is indexed by values of acpi_object_type
 231  */
 232 const u8                                acpi_gbl_ns_properties[] =
 233 {
 234         ACPI_NS_NORMAL,                     /* 00 Any              */
 235         ACPI_NS_NORMAL,                     /* 01 Number           */
 236         ACPI_NS_NORMAL,                     /* 02 String           */
 237         ACPI_NS_NORMAL,                     /* 03 Buffer           */
 238         ACPI_NS_NORMAL,                     /* 04 Package          */
 239         ACPI_NS_NORMAL,                     /* 05 field_unit       */
 240         ACPI_NS_NEWSCOPE,                   /* 06 Device           */
 241         ACPI_NS_NORMAL,                     /* 07 Event            */
 242         ACPI_NS_NEWSCOPE,                   /* 08 Method           */
 243         ACPI_NS_NORMAL,                     /* 09 Mutex            */
 244         ACPI_NS_NORMAL,                     /* 10 Region           */
 245         ACPI_NS_NEWSCOPE,                   /* 11 Power            */
 246         ACPI_NS_NEWSCOPE,                   /* 12 Processor        */
 247         ACPI_NS_NEWSCOPE,                   /* 13 Thermal          */
 248         ACPI_NS_NORMAL,                     /* 14 buffer_field     */
 249         ACPI_NS_NORMAL,                     /* 15 ddb_handle       */
 250         ACPI_NS_NORMAL,                     /* 16 Debug Object     */
 251         ACPI_NS_NORMAL,                     /* 17 def_field        */
 252         ACPI_NS_NORMAL,                     /* 18 bank_field       */
 253         ACPI_NS_NORMAL,                     /* 19 index_field      */
 254         ACPI_NS_NORMAL,                     /* 20 Reference        */
 255         ACPI_NS_NORMAL,                     /* 21 Alias            */
 256         ACPI_NS_NORMAL,                     /* 22 method_alias     */
 257         ACPI_NS_NORMAL,                     /* 23 Notify           */
 258         ACPI_NS_NORMAL,                     /* 24 Address Handler  */
 259         ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL,   /* 25 Resource Desc    */
 260         ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL,   /* 26 Resource Field   */
 261         ACPI_NS_NEWSCOPE,                   /* 27 Scope            */
 262         ACPI_NS_NORMAL,                     /* 28 Extra            */
 263         ACPI_NS_NORMAL,                     /* 29 Data             */
 264         ACPI_NS_NORMAL                      /* 30 Invalid          */
 265 };
 266
 267
 268 /* Hex to ASCII conversion table */
 269
 270 static const char                   acpi_gbl_hex_to_ascii[] =
 271                           {'0','1','2','3','4','5','6','7',
 272                                          '8','9','A','B','C','D','E','F'};
 273
 274 /*****************************************************************************
 275  *
 276  * FUNCTION:    acpi_ut_hex_to_ascii_char
 277  *
 278  * PARAMETERS:  Integer             - Contains the hex digit
 279  *              Position            - bit position of the digit within the
 280  *                                    integer
 281  *
 282  * RETURN:      Ascii character
 283  *
 284  * DESCRIPTION: Convert a hex digit to an ascii character
 285  *
 286  ****************************************************************************/
 287
 288 char
 289 acpi_ut_hex_to_ascii_char (
 290         acpi_integer                    integer,
 291         u32                             position)
 292 {
 293
 294         return (acpi_gbl_hex_to_ascii[(integer >> position) & 0xF]);
 295 }
 296
 297
 298 /******************************************************************************
 299  *
 300  * Table name globals
 301  *
 302  * NOTE: This table includes ONLY the ACPI tables that the subsystem consumes.
 303  * it is NOT an exhaustive list of all possible ACPI tables.  All ACPI tables
 304  * that are not used by the subsystem are simply ignored.
 305  *
 306  * Do NOT add any table to this list that is not consumed directly by this
 307  * subsystem.
 308  *
 309  ******************************************************************************/
 310
 311 struct acpi_table_list              acpi_gbl_table_lists[NUM_ACPI_TABLE_TYPES];
 312
 313 struct acpi_table_support           acpi_gbl_table_data[NUM_ACPI_TABLE_TYPES] =
 314 {
 315         /***********    Name,   Signature, Global typed pointer     Signature size,      Type                  How many allowed?,    Contains valid AML? */
 316
 317         /* RSDP 0 */ {RSDP_NAME, RSDP_SIG, NULL,                    sizeof (RSDP_SIG)-1, ACPI_TABLE_ROOT     | ACPI_TABLE_SINGLE},
 318         /* DSDT 1 */ {DSDT_SIG,  DSDT_SIG, (void *) &acpi_gbl_DSDT, sizeof (DSDT_SIG)-1, ACPI_TABLE_SECONDARY| ACPI_TABLE_SINGLE   | ACPI_TABLE_EXECUTABLE},
 319         /* FADT 2 */ {FADT_SIG,  FADT_SIG, (void *) &acpi_gbl_FADT, sizeof (FADT_SIG)-1, ACPI_TABLE_PRIMARY  | ACPI_TABLE_SINGLE},
 320         /* FACS 3 */ {FACS_SIG,  FACS_SIG, (void *) &acpi_gbl_FACS, sizeof (FACS_SIG)-1, ACPI_TABLE_SECONDARY| ACPI_TABLE_SINGLE},
 321         /* PSDT 4 */ {PSDT_SIG,  PSDT_SIG, NULL,                    sizeof (PSDT_SIG)-1, ACPI_TABLE_PRIMARY  | ACPI_TABLE_MULTIPLE | ACPI_TABLE_EXECUTABLE},
 322         /* SSDT 5 */ {SSDT_SIG,  SSDT_SIG, NULL,                    sizeof (SSDT_SIG)-1, ACPI_TABLE_PRIMARY  | ACPI_TABLE_MULTIPLE | ACPI_TABLE_EXECUTABLE},
 323         /* XSDT 6 */ {XSDT_SIG,  XSDT_SIG, NULL,                    sizeof (RSDT_SIG)-1, ACPI_TABLE_ROOT     | ACPI_TABLE_SINGLE},
 324 };
 325
 326
 327 /******************************************************************************
 328  *
 329  * Event and Hardware globals
 330  *
 331  ******************************************************************************/
 332
 333 struct acpi_bit_register_info       acpi_gbl_bit_register_info[ACPI_NUM_BITREG] =
 334 {
 335         /* Name                                     Parent Register             Register Bit Position                   Register Bit Mask       */
 336
 337         /* ACPI_BITREG_TIMER_STATUS         */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_TIMER_STATUS,          ACPI_BITMASK_TIMER_STATUS},
 338         /* ACPI_BITREG_BUS_MASTER_STATUS    */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_BUS_MASTER_STATUS,     ACPI_BITMASK_BUS_MASTER_STATUS},
 339         /* ACPI_BITREG_GLOBAL_LOCK_STATUS   */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,    ACPI_BITMASK_GLOBAL_LOCK_STATUS},
 340         /* ACPI_BITREG_POWER_BUTTON_STATUS  */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_POWER_BUTTON_STATUS,   ACPI_BITMASK_POWER_BUTTON_STATUS},
 341         /* ACPI_BITREG_SLEEP_BUTTON_STATUS  */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,   ACPI_BITMASK_SLEEP_BUTTON_STATUS},
 342         /* ACPI_BITREG_RT_CLOCK_STATUS      */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_RT_CLOCK_STATUS,       ACPI_BITMASK_RT_CLOCK_STATUS},
 343         /* ACPI_BITREG_WAKE_STATUS          */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_WAKE_STATUS,           ACPI_BITMASK_WAKE_STATUS},
 344
 345         /* ACPI_BITREG_TIMER_ENABLE         */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_TIMER_ENABLE,          ACPI_BITMASK_TIMER_ENABLE},
 346         /* ACPI_BITREG_GLOBAL_LOCK_ENABLE   */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,    ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 347         /* ACPI_BITREG_POWER_BUTTON_ENABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_POWER_BUTTON_ENABLE,   ACPI_BITMASK_POWER_BUTTON_ENABLE},
 348         /* ACPI_BITREG_SLEEP_BUTTON_ENABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,   ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 349         /* ACPI_BITREG_RT_CLOCK_ENABLE      */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_RT_CLOCK_ENABLE,       ACPI_BITMASK_RT_CLOCK_ENABLE},
 350         /* ACPI_BITREG_WAKE_ENABLE          */   {ACPI_REGISTER_PM1_ENABLE,   0,                                      0},
 351
 352         /* ACPI_BITREG_SCI_ENABLE           */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SCI_ENABLE,            ACPI_BITMASK_SCI_ENABLE},
 353         /* ACPI_BITREG_BUS_MASTER_RLD       */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_BUS_MASTER_RLD,        ACPI_BITMASK_BUS_MASTER_RLD},
 354         /* ACPI_BITREG_GLOBAL_LOCK_RELEASE  */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,   ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
 355         /* ACPI_BITREG_SLEEP_TYPE_A         */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SLEEP_TYPE_X,          ACPI_BITMASK_SLEEP_TYPE_X},
 356         /* ACPI_BITREG_SLEEP_TYPE_B         */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SLEEP_TYPE_X,          ACPI_BITMASK_SLEEP_TYPE_X},
 357         /* ACPI_BITREG_SLEEP_ENABLE         */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SLEEP_ENABLE,          ACPI_BITMASK_SLEEP_ENABLE},
 358
 359         /* ACPI_BITREG_ARB_DIS              */   {ACPI_REGISTER_PM2_CONTROL,  ACPI_BITPOSITION_ARB_DISABLE,           ACPI_BITMASK_ARB_DISABLE}
 360 };
 361
 362
 363 struct acpi_fixed_event_info        acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] =
 364 {
 365         /* ACPI_EVENT_PMTIMER       */  {ACPI_BITREG_TIMER_STATUS,          ACPI_BITREG_TIMER_ENABLE,        ACPI_BITMASK_TIMER_STATUS,          ACPI_BITMASK_TIMER_ENABLE},
 366         /* ACPI_EVENT_GLOBAL        */  {ACPI_BITREG_GLOBAL_LOCK_STATUS,    ACPI_BITREG_GLOBAL_LOCK_ENABLE,  ACPI_BITMASK_GLOBAL_LOCK_STATUS,    ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 367         /* ACPI_EVENT_POWER_BUTTON  */  {ACPI_BITREG_POWER_BUTTON_STATUS,   ACPI_BITREG_POWER_BUTTON_ENABLE, ACPI_BITMASK_POWER_BUTTON_STATUS,   ACPI_BITMASK_POWER_BUTTON_ENABLE},
 368         /* ACPI_EVENT_SLEEP_BUTTON  */  {ACPI_BITREG_SLEEP_BUTTON_STATUS,   ACPI_BITREG_SLEEP_BUTTON_ENABLE, ACPI_BITMASK_SLEEP_BUTTON_STATUS,   ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 369         /* ACPI_EVENT_RTC           */  {ACPI_BITREG_RT_CLOCK_STATUS,       ACPI_BITREG_RT_CLOCK_ENABLE,     ACPI_BITMASK_RT_CLOCK_STATUS,       ACPI_BITMASK_RT_CLOCK_ENABLE},
 370 };
 371
 372 /*****************************************************************************
 373  *
 374  * FUNCTION:    acpi_ut_get_region_name
 375  *
 376  * PARAMETERS:  None.
 377  *
 378  * RETURN:      Status
 379  *
 380  * DESCRIPTION: Translate a Space ID into a name string (Debug only)
 381  *
 382  ****************************************************************************/
 383
 384 /* Region type decoding */
 385
 386 const char                *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] =
 387 {
 388 /*! [Begin] no source code translation (keep these ASL Keywords as-is) */
 389         "SystemMemory",
 390         "SystemIO",
 391         "PCI_Config",
 392         "EmbeddedControl",
 393         "SMBus",
 394         "CMOS",
 395         "PCIBARTarget",
 396         "DataTable"
 397 /*! [End] no source code translation !*/
 398 };
 399
 400
 401 char *
 402 acpi_ut_get_region_name (
 403         u8                              space_id)
 404 {
 405
 406         if (space_id >= ACPI_USER_REGION_BEGIN)
 407         {
 408                 return ("user_defined_region");
 409         }
 410
 411         else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS)
 412         {
 413                 return ("invalid_space_id");
 414         }
 415
 416         return ((char *) acpi_gbl_region_types[space_id]);
 417 }
 418
 419
 420 /*****************************************************************************
 421  *
 422  * FUNCTION:    acpi_ut_get_event_name
 423  *
 424  * PARAMETERS:  None.
 425  *
 426  * RETURN:      Status
 427  *
 428  * DESCRIPTION: Translate a Event ID into a name string (Debug only)
 429  *
 430  ****************************************************************************/
 431
 432 /* Event type decoding */
 433
 434 static const char                *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] =
 435 {
 436         "PM_Timer",
 437         "global_lock",
 438         "power_button",
 439         "sleep_button",
 440         "real_time_clock",
 441 };
 442
 443
 444 char *
 445 acpi_ut_get_event_name (
 446         u32                             event_id)
 447 {
 448
 449         if (event_id > ACPI_EVENT_MAX)
 450         {
 451                 return ("invalid_event_iD");
 452         }
 453
 454         return ((char *) acpi_gbl_event_types[event_id]);
 455 }
 456
 457
 458 /*****************************************************************************
 459  *
 460  * FUNCTION:    acpi_ut_get_type_name
 461  *
 462  * PARAMETERS:  None.
 463  *
 464  * RETURN:      Status
 465  *
 466  * DESCRIPTION: Translate a Type ID into a name string (Debug only)
 467  *
 468  ****************************************************************************/
 469
 470 /*
 471  * Elements of acpi_gbl_ns_type_names below must match
 472  * one-to-one with values of acpi_object_type
 473  *
 474  * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching; when
 475  * stored in a table it really means that we have thus far seen no evidence to
 476  * indicate what type is actually going to be stored for this entry.
 477  */
 478 static const char                   acpi_gbl_bad_type[] = "UNDEFINED";
 479 #define TYPE_NAME_LENGTH    12                           /* Maximum length of each string */
 480
 481 static const char                   *acpi_gbl_ns_type_names[] = /* printable names of ACPI types */
 482 {
 483         /* 00 */ "Untyped",
 484         /* 01 */ "Integer",
 485         /* 02 */ "String",
 486         /* 03 */ "Buffer",
 487         /* 04 */ "Package",
 488         /* 05 */ "field_unit",
 489         /* 06 */ "Device",
 490         /* 07 */ "Event",
 491         /* 08 */ "Method",
 492         /* 09 */ "Mutex",
 493         /* 10 */ "Region",
 494         /* 11 */ "Power",
 495         /* 12 */ "Processor",
 496         /* 13 */ "Thermal",
 497         /* 14 */ "buffer_field",
 498         /* 15 */ "ddb_handle",
 499         /* 16 */ "debug_object",
 500         /* 17 */ "region_field",
 501         /* 18 */ "bank_field",
 502         /* 19 */ "index_field",
 503         /* 20 */ "Reference",
 504         /* 21 */ "Alias",
 505         /* 22 */ "method_alias",
 506         /* 23 */ "Notify",
 507         /* 24 */ "addr_handler",
 508         /* 25 */ "resource_desc",
 509         /* 26 */ "resource_fld",
 510         /* 27 */ "Scope",
 511         /* 28 */ "Extra",
 512         /* 29 */ "Data",
 513         /* 30 */ "Invalid"
 514 };
 515
 516
 517 char *
 518 acpi_ut_get_type_name (
 519         acpi_object_type                type)
 520 {
 521
 522         if (type > ACPI_TYPE_INVALID)
 523         {
 524                 return ((char *) acpi_gbl_bad_type);
 525         }
 526
 527         return ((char *) acpi_gbl_ns_type_names[type]);
 528 }
 529
 530
 531 char *
 532 acpi_ut_get_object_type_name (
 533         union acpi_operand_object       *obj_desc)
 534 {
 535
 536         if (!obj_desc)
 537         {
 538                 return ("[NULL Object Descriptor]");
 539         }
 540
 541         return (acpi_ut_get_type_name (ACPI_GET_OBJECT_TYPE (obj_desc)));
 542 }
 543
 544
 545 /*****************************************************************************
 546  *
 547  * FUNCTION:    acpi_ut_get_node_name
 548  *
 549  * PARAMETERS:  Object               - A namespace node
 550  *
 551  * RETURN:      Pointer to a string
 552  *
 553  * DESCRIPTION: Validate the node and return the node's ACPI name.
 554  *
 555  ****************************************************************************/
 556
 557 char *
 558 acpi_ut_get_node_name (
 559         void                            *object)
 560 {
 561         struct acpi_namespace_node      *node = (struct acpi_namespace_node *) object;
 562
 563
 564         if (!object)
 565         {
 566                 return ("NULL NODE");
 567         }
 568
 569         if (object == ACPI_ROOT_OBJECT)
 570         {
 571                 node = acpi_gbl_root_node;
 572         }
 573
 574         if (node->descriptor != ACPI_DESC_TYPE_NAMED)
 575         {
 576                 return ("****");
 577         }
 578
 579         if (!acpi_ut_valid_acpi_name (* (u32 *) node->name.ascii))
 580         {
 581                 return ("----");
 582         }
 583
 584         return (node->name.ascii);
 585 }
 586
 587
 588 /*****************************************************************************
 589  *
 590  * FUNCTION:    acpi_ut_get_descriptor_name
 591  *
 592  * PARAMETERS:  Object               - An ACPI object
 593  *
 594  * RETURN:      Pointer to a string
 595  *
 596  * DESCRIPTION: Validate object and return the descriptor type
 597  *
 598  ****************************************************************************/
 599
 600 static const char                   *acpi_gbl_desc_type_names[] = /* printable names of descriptor types */
 601 {
 602         /* 00 */ "Invalid",
 603         /* 01 */ "Cached",
 604         /* 02 */ "State-Generic",
 605         /* 03 */ "State-Update",
 606         /* 04 */ "State-Package",
 607         /* 05 */ "State-Control",
 608         /* 06 */ "State-root_parse_scope",
 609         /* 07 */ "State-parse_scope",
 610         /* 08 */ "State-walk_scope",
 611         /* 09 */ "State-Result",
 612         /* 10 */ "State-Notify",
 613         /* 11 */ "State-Thread",
 614         /* 12 */ "Walk",
 615         /* 13 */ "Parser",
 616         /* 14 */ "Operand",
 617         /* 15 */ "Node"
 618 };
 619
 620
 621 char *
 622 acpi_ut_get_descriptor_name (
 623         void                            *object)
 624 {
 625
 626         if (!object)
 627         {
 628                 return ("NULL OBJECT");
 629         }
 630
 631         if (ACPI_GET_DESCRIPTOR_TYPE (object) > ACPI_DESC_TYPE_MAX)
 632         {
 633                 return ((char *) acpi_gbl_bad_type);
 634         }
 635
 636         return ((char *) acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE (object)]);
 637
 638 }
 639
 640
 641 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
 642 /*
 643  * Strings and procedures used for debug only
 644  */
 645
 646 /*****************************************************************************
 647  *
 648  * FUNCTION:    acpi_ut_get_mutex_name
 649  *
 650  * PARAMETERS:  None.
 651  *
 652  * RETURN:      Status
 653  *
 654  * DESCRIPTION: Translate a mutex ID into a name string (Debug only)
 655  *
 656  ****************************************************************************/
 657
 658 char *
 659 acpi_ut_get_mutex_name (
 660         u32                             mutex_id)
 661 {
 662
 663         if (mutex_id > MAX_MUTEX)
 664         {
 665                 return ("Invalid Mutex ID");
 666         }
 667
 668         return (acpi_gbl_mutex_names[mutex_id]);
 669 }
 670
 671 #endif
 672
 673
 674 /*****************************************************************************
 675  *
 676  * FUNCTION:    acpi_ut_valid_object_type
 677  *
 678  * PARAMETERS:  Type            - Object type to be validated
 679  *
 680  * RETURN:      TRUE if valid object type
 681  *
 682  * DESCRIPTION: Validate an object type
 683  *
 684  ****************************************************************************/
 685
 686 u8
 687 acpi_ut_valid_object_type (
 688         acpi_object_type                type)
 689 {
 690
 691         if (type > ACPI_TYPE_LOCAL_MAX)
 692         {
 693                 /* Note: Assumes all TYPEs are contiguous (external/local) */
 694
 695                 return (FALSE);
 696         }
 697
 698         return (TRUE);
 699 }
 700
 701
 702 /****************************************************************************
 703  *
 704  * FUNCTION:    acpi_ut_allocate_owner_id
 705  *
 706  * PARAMETERS:  id_type         - Type of ID (method or table)
 707  *
 708  * DESCRIPTION: Allocate a table or method owner id
 709  *
 710  ***************************************************************************/
 711
 712 acpi_owner_id
 713 acpi_ut_allocate_owner_id (
 714         u32                             id_type)
 715 {
 716         acpi_owner_id                   owner_id = 0xFFFF;
 717
 718
 719         ACPI_FUNCTION_TRACE ("ut_allocate_owner_id");
 720
 721
 722         if (ACPI_FAILURE (acpi_ut_acquire_mutex (ACPI_MTX_CACHES)))
 723         {
 724                 return (0);
 725         }
 726
 727         switch (id_type)
 728         {
 729         case ACPI_OWNER_TYPE_TABLE:
 730
 731                 owner_id = acpi_gbl_next_table_owner_id;
 732                 acpi_gbl_next_table_owner_id++;
 733
 734                 /* Check for wraparound */
 735
 736                 if (acpi_gbl_next_table_owner_id == ACPI_FIRST_METHOD_ID)
 737                 {
 738                         acpi_gbl_next_table_owner_id = ACPI_FIRST_TABLE_ID;
 739                         ACPI_REPORT_WARNING (("Table owner ID wraparound\n"));
 740                 }
 741                 break;
 742
 743
 744         case ACPI_OWNER_TYPE_METHOD:
 745
 746                 owner_id = acpi_gbl_next_method_owner_id;
 747                 acpi_gbl_next_method_owner_id++;
 748
 749                 if (acpi_gbl_next_method_owner_id == ACPI_FIRST_TABLE_ID)
 750                 {
 751                         /* Check for wraparound */
 752
 753                         acpi_gbl_next_method_owner_id = ACPI_FIRST_METHOD_ID;
 754                 }
 755                 break;
 756
 757         default:
 758                 break;
 759         }
 760
 761         (void) acpi_ut_release_mutex (ACPI_MTX_CACHES);
 762         return_VALUE (owner_id);
 763 }
 764
 765
 766 /****************************************************************************
 767  *
 768  * FUNCTION:    acpi_ut_init_globals
 769  *
 770  * PARAMETERS:  none
 771  *
 772  * DESCRIPTION: Init library globals.  All globals that require specific
 773  *              initialization should be initialized here!
 774  *
 775  ***************************************************************************/
 776
 777 void
 778 acpi_ut_init_globals (
 779         void)
 780 {
 781         u32                             i;
 782
 783
 784         ACPI_FUNCTION_TRACE ("ut_init_globals");
 785
 786         /* Runtime configuration */
 787
 788         acpi_gbl_create_osi_method = TRUE;
 789         acpi_gbl_all_methods_serialized = FALSE;
 790
 791         /* Memory allocation and cache lists */
 792
 793         ACPI_MEMSET (acpi_gbl_memory_lists, 0, sizeof (struct acpi_memory_list) * ACPI_NUM_MEM_LISTS);
 794
 795         acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].link_offset      = (u16) ACPI_PTR_DIFF (&(((union acpi_generic_state *) NULL)->common.next), NULL);
 796         acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].link_offset     = (u16) ACPI_PTR_DIFF (&(((union acpi_parse_object *) NULL)->common.next), NULL);
 797         acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_parse_object *) NULL)->common.next), NULL);
 798         acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].link_offset    = (u16) ACPI_PTR_DIFF (&(((union acpi_operand_object *) NULL)->cache.next), NULL);
 799         acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].link_offset       = (u16) ACPI_PTR_DIFF (&(((struct acpi_walk_state *) NULL)->next), NULL);
 800
 801         acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].object_size     = sizeof (struct acpi_namespace_node);
 802         acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].object_size      = sizeof (union acpi_generic_state);
 803         acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].object_size     = sizeof (struct acpi_parse_obj_common);
 804         acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].object_size = sizeof (struct acpi_parse_obj_named);
 805         acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].object_size    = sizeof (union acpi_operand_object);
 806         acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].object_size       = sizeof (struct acpi_walk_state);
 807
 808         acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].max_cache_depth  = ACPI_MAX_STATE_CACHE_DEPTH;
 809         acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].max_cache_depth = ACPI_MAX_PARSE_CACHE_DEPTH;
 810         acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].max_cache_depth = ACPI_MAX_EXTPARSE_CACHE_DEPTH;
 811         acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].max_cache_depth = ACPI_MAX_OBJECT_CACHE_DEPTH;
 812         acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].max_cache_depth   = ACPI_MAX_WALK_CACHE_DEPTH;
 813
 814         ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].list_name    = "Global Memory Allocation");
 815         ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].list_name    = "Namespace Nodes");
 816         ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].list_name     = "State Object Cache");
 817         ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].list_name    = "Parse Node Cache");
 818         ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].list_name = "Extended Parse Node Cache");
 819         ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].list_name   = "Operand Object Cache");
 820         ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].list_name      = "Tree Walk Node Cache");
 821
 822         /* ACPI table structure */
 823
 824         for (i = 0; i < NUM_ACPI_TABLE_TYPES; i++)
 825         {
 826                 acpi_gbl_table_lists[i].next        = NULL;
 827                 acpi_gbl_table_lists[i].count       = 0;
 828         }
 829
 830         /* Mutex locked flags */
 831
 832         for (i = 0; i < NUM_MUTEX; i++)
 833         {
 834                 acpi_gbl_mutex_info[i].mutex        = NULL;
 835                 acpi_gbl_mutex_info[i].owner_id     = ACPI_MUTEX_NOT_ACQUIRED;
 836                 acpi_gbl_mutex_info[i].use_count    = 0;
 837         }
 838
 839         /* GPE support */
 840
 841         acpi_gbl_gpe_xrupt_list_head        = NULL;
 842         acpi_gbl_gpe_fadt_blocks[0]         = NULL;
 843         acpi_gbl_gpe_fadt_blocks[1]         = NULL;
 844
 845         /* Global notify handlers */
 846
 847         acpi_gbl_system_notify.handler      = NULL;
 848         acpi_gbl_device_notify.handler      = NULL;
 849         acpi_gbl_init_handler               = NULL;
 850
 851         /* Global "typed" ACPI table pointers */
 852
 853         acpi_gbl_RSDP                       = NULL;
 854         acpi_gbl_XSDT                       = NULL;
 855         acpi_gbl_FACS                       = NULL;
 856         acpi_gbl_FADT                       = NULL;
 857         acpi_gbl_DSDT                       = NULL;
 858
 859         /* Global Lock support */
 860
 861         acpi_gbl_global_lock_acquired       = FALSE;
 862         acpi_gbl_global_lock_thread_count   = 0;
 863         acpi_gbl_global_lock_handle         = 0;
 864
 865         /* Miscellaneous variables */
 866
 867         acpi_gbl_table_flags                = ACPI_PHYSICAL_POINTER;
 868         acpi_gbl_rsdp_original_location     = 0;
 869         acpi_gbl_cm_single_step             = FALSE;
 870         acpi_gbl_db_terminate_threads       = FALSE;
 871         acpi_gbl_shutdown                   = FALSE;
 872         acpi_gbl_ns_lookup_count            = 0;
 873         acpi_gbl_ps_find_count              = 0;
 874         acpi_gbl_acpi_hardware_present      = TRUE;
 875         acpi_gbl_next_table_owner_id        = ACPI_FIRST_TABLE_ID;
 876         acpi_gbl_next_method_owner_id       = ACPI_FIRST_METHOD_ID;
 877         acpi_gbl_debugger_configuration     = DEBUGGER_THREADING;
 878         acpi_gbl_db_output_flags            = ACPI_DB_CONSOLE_OUTPUT;
 879
 880         /* Hardware oriented */
 881
 882         acpi_gbl_events_initialized         = FALSE;
 883
 884         /* Namespace */
 885
 886         acpi_gbl_root_node                  = NULL;
 887
 888         acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
 889         acpi_gbl_root_node_struct.descriptor = ACPI_DESC_TYPE_NAMED;
 890         acpi_gbl_root_node_struct.type      = ACPI_TYPE_DEVICE;
 891         acpi_gbl_root_node_struct.child     = NULL;
 892         acpi_gbl_root_node_struct.peer      = NULL;
 893         acpi_gbl_root_node_struct.object    = NULL;
 894         acpi_gbl_root_node_struct.flags     = ANOBJ_END_OF_PEER_LIST;
 895
 896
 897 #ifdef ACPI_DEBUG_OUTPUT
 898         acpi_gbl_lowest_stack_pointer       = ACPI_SIZE_MAX;
 899 #endif
 900
 901         return_VOID;
 902 }
 903
 904