1 /******************************************************************************
3 * Module Name: utglobal - Global variables for the ACPI subsystem
5 *****************************************************************************/
8 * Copyright (C) 2000 - 2005, R. Byron Moore
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
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.
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.
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.
44 #define DEFINE_ACPI_GLOBALS
46 #include <linux/module.h>
47 #include <acpi/acpi.h>
48 #include <acpi/acnamesp.h>
50 #define _COMPONENT ACPI_UTILITIES
51 ACPI_MODULE_NAME("utglobal")
53 /*******************************************************************************
55 * FUNCTION: acpi_format_exception
57 * PARAMETERS: Status - The acpi_status code to be formatted
59 * RETURN: A string containing the exception text. A valid pointer is
62 * DESCRIPTION: This function translates an ACPI exception into an ASCII string.
64 ******************************************************************************/
65 const char *acpi_format_exception(acpi_status status)
67 acpi_status sub_status;
68 const char *exception = NULL;
70 ACPI_FUNCTION_NAME("format_exception");
72 sub_status = (status & ~AE_CODE_MASK);
74 switch (status & AE_CODE_MASK) {
75 case AE_CODE_ENVIRONMENTAL:
77 if (sub_status <= AE_CODE_ENV_MAX) {
78 exception = acpi_gbl_exception_names_env[sub_status];
82 case AE_CODE_PROGRAMMER:
84 if (sub_status <= AE_CODE_PGM_MAX) {
86 acpi_gbl_exception_names_pgm[sub_status - 1];
90 case AE_CODE_ACPI_TABLES:
92 if (sub_status <= AE_CODE_TBL_MAX) {
94 acpi_gbl_exception_names_tbl[sub_status - 1];
100 if (sub_status <= AE_CODE_AML_MAX) {
102 acpi_gbl_exception_names_aml[sub_status - 1];
106 case AE_CODE_CONTROL:
108 if (sub_status <= AE_CODE_CTRL_MAX) {
110 acpi_gbl_exception_names_ctrl[sub_status - 1];
119 /* Exception code was not recognized */
121 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
122 "Unknown exception code: 0x%8.8X\n", status));
124 return ((const char *)"UNKNOWN_STATUS_CODE");
127 return ((const char *)exception);
130 /*******************************************************************************
132 * Static global variable initialization.
134 ******************************************************************************/
137 * We want the debug switches statically initialized so they
138 * are already set when the debugger is entered.
141 /* Debug switch - level and trace mask */
142 u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT;
143 EXPORT_SYMBOL(acpi_dbg_level);
145 /* Debug switch - layer (component) mask */
147 u32 acpi_dbg_layer = ACPI_COMPONENT_DEFAULT | ACPI_ALL_DRIVERS;
148 EXPORT_SYMBOL(acpi_dbg_layer);
149 u32 acpi_gbl_nesting_level = 0;
151 /* Debugger globals */
153 u8 acpi_gbl_db_terminate_threads = FALSE;
154 u8 acpi_gbl_abort_method = FALSE;
155 u8 acpi_gbl_method_executing = FALSE;
159 u32 acpi_gbl_startup_flags = 0;
161 /* System starts uninitialized */
163 u8 acpi_gbl_shutdown = TRUE;
165 const u8 acpi_gbl_decode_to8bit[8] = { 1, 2, 4, 8, 16, 32, 64, 128 };
167 const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
176 const char *acpi_gbl_highest_dstate_names[4] = {
184 * Strings supported by the _OSI predefined (internal) method.
185 * When adding strings, be sure to update ACPI_NUM_OSI_STRINGS.
187 const char *acpi_gbl_valid_osi_strings[ACPI_NUM_OSI_STRINGS] = {
188 /* Operating System Vendor Strings */
200 /* Feature Group Strings */
202 "Extended Address Space Descriptor"
205 /*******************************************************************************
209 ******************************************************************************/
212 * Predefined ACPI Names (Built-in to the Interpreter)
215 * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
216 * during the initialization sequence.
217 * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
218 * perform a Notify() operation on it.
220 const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
221 {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
222 {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
223 {"_SB_", ACPI_TYPE_DEVICE, NULL},
224 {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
225 {"_TZ_", ACPI_TYPE_THERMAL, NULL},
226 {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL},
227 {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
228 {"_GL_", ACPI_TYPE_MUTEX, (char *)1},
230 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
231 {"_OSI", ACPI_TYPE_METHOD, (char *)1},
234 /* Table terminator */
236 {NULL, ACPI_TYPE_ANY, NULL}
240 * Properties of the ACPI Object Types, both internal and external.
241 * The table is indexed by values of acpi_object_type
243 const u8 acpi_gbl_ns_properties[] = {
244 ACPI_NS_NORMAL, /* 00 Any */
245 ACPI_NS_NORMAL, /* 01 Number */
246 ACPI_NS_NORMAL, /* 02 String */
247 ACPI_NS_NORMAL, /* 03 Buffer */
248 ACPI_NS_NORMAL, /* 04 Package */
249 ACPI_NS_NORMAL, /* 05 field_unit */
250 ACPI_NS_NEWSCOPE, /* 06 Device */
251 ACPI_NS_NORMAL, /* 07 Event */
252 ACPI_NS_NEWSCOPE, /* 08 Method */
253 ACPI_NS_NORMAL, /* 09 Mutex */
254 ACPI_NS_NORMAL, /* 10 Region */
255 ACPI_NS_NEWSCOPE, /* 11 Power */
256 ACPI_NS_NEWSCOPE, /* 12 Processor */
257 ACPI_NS_NEWSCOPE, /* 13 Thermal */
258 ACPI_NS_NORMAL, /* 14 buffer_field */
259 ACPI_NS_NORMAL, /* 15 ddb_handle */
260 ACPI_NS_NORMAL, /* 16 Debug Object */
261 ACPI_NS_NORMAL, /* 17 def_field */
262 ACPI_NS_NORMAL, /* 18 bank_field */
263 ACPI_NS_NORMAL, /* 19 index_field */
264 ACPI_NS_NORMAL, /* 20 Reference */
265 ACPI_NS_NORMAL, /* 21 Alias */
266 ACPI_NS_NORMAL, /* 22 method_alias */
267 ACPI_NS_NORMAL, /* 23 Notify */
268 ACPI_NS_NORMAL, /* 24 Address Handler */
269 ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 25 Resource Desc */
270 ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 26 Resource Field */
271 ACPI_NS_NEWSCOPE, /* 27 Scope */
272 ACPI_NS_NORMAL, /* 28 Extra */
273 ACPI_NS_NORMAL, /* 29 Data */
274 ACPI_NS_NORMAL /* 30 Invalid */
277 /* Hex to ASCII conversion table */
279 static const char acpi_gbl_hex_to_ascii[] = {
280 '0', '1', '2', '3', '4', '5', '6', '7',
281 '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
284 /*******************************************************************************
286 * FUNCTION: acpi_ut_hex_to_ascii_char
288 * PARAMETERS: Integer - Contains the hex digit
289 * Position - bit position of the digit within the
290 * integer (multiple of 4)
292 * RETURN: The converted Ascii character
294 * DESCRIPTION: Convert a hex digit to an Ascii character
296 ******************************************************************************/
298 char acpi_ut_hex_to_ascii_char(acpi_integer integer, u32 position)
301 return (acpi_gbl_hex_to_ascii[(integer >> position) & 0xF]);
304 /*******************************************************************************
308 * NOTE: This table includes ONLY the ACPI tables that the subsystem consumes.
309 * it is NOT an exhaustive list of all possible ACPI tables. All ACPI tables
310 * that are not used by the subsystem are simply ignored.
312 * Do NOT add any table to this list that is not consumed directly by this
313 * subsystem (No MADT, ECDT, SBST, etc.)
315 ******************************************************************************/
317 struct acpi_table_list acpi_gbl_table_lists[NUM_ACPI_TABLE_TYPES];
319 struct acpi_table_support acpi_gbl_table_data[NUM_ACPI_TABLE_TYPES] = {
320 /*********** Name, Signature, Global typed pointer Signature size, Type How many allowed?, Contains valid AML? */
322 /* RSDP 0 */ {RSDP_NAME, RSDP_SIG, NULL, sizeof(RSDP_SIG) - 1,
323 ACPI_TABLE_ROOT | ACPI_TABLE_SINGLE}
325 /* DSDT 1 */ {DSDT_SIG, DSDT_SIG, (void *)&acpi_gbl_DSDT,
326 sizeof(DSDT_SIG) - 1,
327 ACPI_TABLE_SECONDARY | ACPI_TABLE_SINGLE |
328 ACPI_TABLE_EXECUTABLE}
330 /* FADT 2 */ {FADT_SIG, FADT_SIG, (void *)&acpi_gbl_FADT,
331 sizeof(FADT_SIG) - 1,
332 ACPI_TABLE_PRIMARY | ACPI_TABLE_SINGLE}
334 /* FACS 3 */ {FACS_SIG, FACS_SIG, (void *)&acpi_gbl_FACS,
335 sizeof(FACS_SIG) - 1,
336 ACPI_TABLE_SECONDARY | ACPI_TABLE_SINGLE}
338 /* PSDT 4 */ {PSDT_SIG, PSDT_SIG, NULL, sizeof(PSDT_SIG) - 1,
339 ACPI_TABLE_PRIMARY | ACPI_TABLE_MULTIPLE |
340 ACPI_TABLE_EXECUTABLE}
342 /* SSDT 5 */ {SSDT_SIG, SSDT_SIG, NULL, sizeof(SSDT_SIG) - 1,
343 ACPI_TABLE_PRIMARY | ACPI_TABLE_MULTIPLE |
344 ACPI_TABLE_EXECUTABLE}
346 /* XSDT 6 */ {XSDT_SIG, XSDT_SIG, NULL, sizeof(RSDT_SIG) - 1,
347 ACPI_TABLE_ROOT | ACPI_TABLE_SINGLE}
351 /******************************************************************************
353 * Event and Hardware globals
355 ******************************************************************************/
357 struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
358 /* Name Parent Register Register Bit Position Register Bit Mask */
360 /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
361 ACPI_BITPOSITION_TIMER_STATUS,
362 ACPI_BITMASK_TIMER_STATUS},
363 /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
364 ACPI_BITPOSITION_BUS_MASTER_STATUS,
365 ACPI_BITMASK_BUS_MASTER_STATUS},
366 /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
367 ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
368 ACPI_BITMASK_GLOBAL_LOCK_STATUS},
369 /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
370 ACPI_BITPOSITION_POWER_BUTTON_STATUS,
371 ACPI_BITMASK_POWER_BUTTON_STATUS},
372 /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
373 ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
374 ACPI_BITMASK_SLEEP_BUTTON_STATUS},
375 /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
376 ACPI_BITPOSITION_RT_CLOCK_STATUS,
377 ACPI_BITMASK_RT_CLOCK_STATUS},
378 /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
379 ACPI_BITPOSITION_WAKE_STATUS,
380 ACPI_BITMASK_WAKE_STATUS},
381 /* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
382 ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
383 ACPI_BITMASK_PCIEXP_WAKE_STATUS},
385 /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
386 ACPI_BITPOSITION_TIMER_ENABLE,
387 ACPI_BITMASK_TIMER_ENABLE},
388 /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
389 ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
390 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
391 /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
392 ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
393 ACPI_BITMASK_POWER_BUTTON_ENABLE},
394 /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
395 ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
396 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
397 /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
398 ACPI_BITPOSITION_RT_CLOCK_ENABLE,
399 ACPI_BITMASK_RT_CLOCK_ENABLE},
400 /* ACPI_BITREG_WAKE_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, 0, 0},
401 /* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE,
402 ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
403 ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
405 /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
406 ACPI_BITPOSITION_SCI_ENABLE,
407 ACPI_BITMASK_SCI_ENABLE},
408 /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL,
409 ACPI_BITPOSITION_BUS_MASTER_RLD,
410 ACPI_BITMASK_BUS_MASTER_RLD},
411 /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL,
412 ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
413 ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
414 /* ACPI_BITREG_SLEEP_TYPE_A */ {ACPI_REGISTER_PM1_CONTROL,
415 ACPI_BITPOSITION_SLEEP_TYPE_X,
416 ACPI_BITMASK_SLEEP_TYPE_X},
417 /* ACPI_BITREG_SLEEP_TYPE_B */ {ACPI_REGISTER_PM1_CONTROL,
418 ACPI_BITPOSITION_SLEEP_TYPE_X,
419 ACPI_BITMASK_SLEEP_TYPE_X},
420 /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
421 ACPI_BITPOSITION_SLEEP_ENABLE,
422 ACPI_BITMASK_SLEEP_ENABLE},
424 /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL,
425 ACPI_BITPOSITION_ARB_DISABLE,
426 ACPI_BITMASK_ARB_DISABLE}
429 struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = {
430 /* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS,
431 ACPI_BITREG_TIMER_ENABLE,
432 ACPI_BITMASK_TIMER_STATUS,
433 ACPI_BITMASK_TIMER_ENABLE},
434 /* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS,
435 ACPI_BITREG_GLOBAL_LOCK_ENABLE,
436 ACPI_BITMASK_GLOBAL_LOCK_STATUS,
437 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
438 /* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS,
439 ACPI_BITREG_POWER_BUTTON_ENABLE,
440 ACPI_BITMASK_POWER_BUTTON_STATUS,
441 ACPI_BITMASK_POWER_BUTTON_ENABLE},
442 /* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS,
443 ACPI_BITREG_SLEEP_BUTTON_ENABLE,
444 ACPI_BITMASK_SLEEP_BUTTON_STATUS,
445 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
446 /* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS,
447 ACPI_BITREG_RT_CLOCK_ENABLE,
448 ACPI_BITMASK_RT_CLOCK_STATUS,
449 ACPI_BITMASK_RT_CLOCK_ENABLE},
452 /*******************************************************************************
454 * FUNCTION: acpi_ut_get_region_name
460 * DESCRIPTION: Translate a Space ID into a name string (Debug only)
462 ******************************************************************************/
464 /* Region type decoding */
466 const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = {
467 /*! [Begin] no source code translation (keep these ASL Keywords as-is) */
476 /*! [End] no source code translation !*/
479 char *acpi_ut_get_region_name(u8 space_id)
482 if (space_id >= ACPI_USER_REGION_BEGIN) {
483 return ("user_defined_region");
484 } else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) {
485 return ("invalid_space_id");
488 return ((char *)acpi_gbl_region_types[space_id]);
491 /*******************************************************************************
493 * FUNCTION: acpi_ut_get_event_name
499 * DESCRIPTION: Translate a Event ID into a name string (Debug only)
501 ******************************************************************************/
503 /* Event type decoding */
505 static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = {
506 /*! [Begin] no source code translation (keep these strings as-is) */
512 /*! [End] no source code translation !*/
515 char *acpi_ut_get_event_name(u32 event_id)
518 if (event_id > ACPI_EVENT_MAX) {
519 return ("invalid_event_iD");
522 return ((char *)acpi_gbl_event_types[event_id]);
525 /*******************************************************************************
527 * FUNCTION: acpi_ut_get_type_name
533 * DESCRIPTION: Translate a Type ID into a name string (Debug only)
535 ******************************************************************************/
538 * Elements of acpi_gbl_ns_type_names below must match
539 * one-to-one with values of acpi_object_type
541 * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching;
542 * when stored in a table it really means that we have thus far seen no
543 * evidence to indicate what type is actually going to be stored for this entry.
545 static const char acpi_gbl_bad_type[] = "UNDEFINED";
547 /* Printable names of the ACPI object types */
549 static const char *acpi_gbl_ns_type_names[] = {
550 /*! [Begin] no source code translation (keep these strings as-is) */
556 /* 05 */ "FieldUnit",
563 /* 12 */ "Processor",
565 /* 14 */ "BufferField",
566 /* 15 */ "DdbHandle",
567 /* 16 */ "DebugObject",
568 /* 17 */ "RegionField",
569 /* 18 */ "BankField",
570 /* 19 */ "IndexField",
571 /* 20 */ "Reference",
573 /* 22 */ "MethodAlias",
575 /* 24 */ "AddrHandler",
576 /* 25 */ "ResourceDesc",
577 /* 26 */ "ResourceFld",
582 /*! [End] no source code translation !*/
585 char *acpi_ut_get_type_name(acpi_object_type type)
588 if (type > ACPI_TYPE_INVALID) {
589 return ((char *)acpi_gbl_bad_type);
592 return ((char *)acpi_gbl_ns_type_names[type]);
595 char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc)
599 return ("[NULL Object Descriptor]");
602 return (acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc)));
605 /*******************************************************************************
607 * FUNCTION: acpi_ut_get_node_name
609 * PARAMETERS: Object - A namespace node
611 * RETURN: Pointer to a string
613 * DESCRIPTION: Validate the node and return the node's ACPI name.
615 ******************************************************************************/
617 char *acpi_ut_get_node_name(void *object)
619 struct acpi_namespace_node *node = (struct acpi_namespace_node *)object;
621 /* Must return a string of exactly 4 characters == ACPI_NAME_SIZE */
627 /* Check for Root node */
629 if ((object == ACPI_ROOT_OBJECT) || (object == acpi_gbl_root_node)) {
633 /* Descriptor must be a namespace node */
635 if (node->descriptor != ACPI_DESC_TYPE_NAMED) {
639 /* Name must be a valid ACPI name */
641 if (!acpi_ut_valid_acpi_name(node->name.integer)) {
645 /* Return the name */
647 return (node->name.ascii);
650 /*******************************************************************************
652 * FUNCTION: acpi_ut_get_descriptor_name
654 * PARAMETERS: Object - An ACPI object
656 * RETURN: Pointer to a string
658 * DESCRIPTION: Validate object and return the descriptor type
660 ******************************************************************************/
662 /* Printable names of object descriptor types */
664 static const char *acpi_gbl_desc_type_names[] = {
665 /*! [Begin] no source code translation (keep these ASL Keywords as-is) */
668 /* 02 */ "State-Generic",
669 /* 03 */ "State-Update",
670 /* 04 */ "State-Package",
671 /* 05 */ "State-Control",
672 /* 06 */ "State-RootParseScope",
673 /* 07 */ "State-ParseScope",
674 /* 08 */ "State-WalkScope",
675 /* 09 */ "State-Result",
676 /* 10 */ "State-Notify",
677 /* 11 */ "State-Thread",
682 /*! [End] no source code translation !*/
685 char *acpi_ut_get_descriptor_name(void *object)
689 return ("NULL OBJECT");
692 if (ACPI_GET_DESCRIPTOR_TYPE(object) > ACPI_DESC_TYPE_MAX) {
693 return ((char *)acpi_gbl_bad_type);
697 acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE(object)]);
701 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
703 * Strings and procedures used for debug only
706 /*******************************************************************************
708 * FUNCTION: acpi_ut_get_mutex_name
710 * PARAMETERS: mutex_id - The predefined ID for this mutex.
712 * RETURN: String containing the name of the mutex. Always returns a valid
715 * DESCRIPTION: Translate a mutex ID into a name string (Debug only)
717 ******************************************************************************/
719 char *acpi_ut_get_mutex_name(u32 mutex_id)
722 if (mutex_id > MAX_MUTEX) {
723 return ("Invalid Mutex ID");
726 return (acpi_gbl_mutex_names[mutex_id]);
730 /*******************************************************************************
732 * FUNCTION: acpi_ut_valid_object_type
734 * PARAMETERS: Type - Object type to be validated
736 * RETURN: TRUE if valid object type, FALSE otherwise
738 * DESCRIPTION: Validate an object type
740 ******************************************************************************/
742 u8 acpi_ut_valid_object_type(acpi_object_type type)
745 if (type > ACPI_TYPE_LOCAL_MAX) {
746 /* Note: Assumes all TYPEs are contiguous (external/local) */
754 /*******************************************************************************
756 * FUNCTION: acpi_ut_init_globals
762 * DESCRIPTION: Init library globals. All globals that require specific
763 * initialization should be initialized here!
765 ******************************************************************************/
767 void acpi_ut_init_globals(void)
772 ACPI_FUNCTION_TRACE("ut_init_globals");
774 /* Create all memory caches */
776 status = acpi_ut_create_caches();
777 if (ACPI_FAILURE(status)) {
781 /* ACPI table structure */
783 for (i = 0; i < NUM_ACPI_TABLE_TYPES; i++) {
784 acpi_gbl_table_lists[i].next = NULL;
785 acpi_gbl_table_lists[i].count = 0;
788 /* Mutex locked flags */
790 for (i = 0; i < NUM_MUTEX; i++) {
791 acpi_gbl_mutex_info[i].mutex = NULL;
792 acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
793 acpi_gbl_mutex_info[i].use_count = 0;
796 for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) {
797 acpi_gbl_owner_id_mask[i] = 0;
799 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; /* Last ID is never valid */
803 acpi_gbl_gpe_xrupt_list_head = NULL;
804 acpi_gbl_gpe_fadt_blocks[0] = NULL;
805 acpi_gbl_gpe_fadt_blocks[1] = NULL;
807 /* Global notify handlers */
809 acpi_gbl_system_notify.handler = NULL;
810 acpi_gbl_device_notify.handler = NULL;
811 acpi_gbl_exception_handler = NULL;
812 acpi_gbl_init_handler = NULL;
814 /* Global "typed" ACPI table pointers */
816 acpi_gbl_RSDP = NULL;
817 acpi_gbl_XSDT = NULL;
818 acpi_gbl_FACS = NULL;
819 acpi_gbl_FADT = NULL;
820 acpi_gbl_DSDT = NULL;
822 /* Global Lock support */
824 acpi_gbl_global_lock_acquired = FALSE;
825 acpi_gbl_global_lock_thread_count = 0;
826 acpi_gbl_global_lock_handle = 0;
828 /* Miscellaneous variables */
830 acpi_gbl_table_flags = ACPI_PHYSICAL_POINTER;
831 acpi_gbl_rsdp_original_location = 0;
832 acpi_gbl_cm_single_step = FALSE;
833 acpi_gbl_db_terminate_threads = FALSE;
834 acpi_gbl_shutdown = FALSE;
835 acpi_gbl_ns_lookup_count = 0;
836 acpi_gbl_ps_find_count = 0;
837 acpi_gbl_acpi_hardware_present = TRUE;
838 acpi_gbl_last_owner_id_index = 0;
839 acpi_gbl_next_owner_id_offset = 0;
840 acpi_gbl_trace_method_name = 0;
841 acpi_gbl_trace_dbg_level = 0;
842 acpi_gbl_trace_dbg_layer = 0;
843 acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
844 acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
846 /* Hardware oriented */
848 acpi_gbl_events_initialized = FALSE;
849 acpi_gbl_system_awake_and_running = TRUE;
853 acpi_gbl_root_node = NULL;
854 acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
855 acpi_gbl_root_node_struct.descriptor = ACPI_DESC_TYPE_NAMED;
856 acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
857 acpi_gbl_root_node_struct.child = NULL;
858 acpi_gbl_root_node_struct.peer = NULL;
859 acpi_gbl_root_node_struct.object = NULL;
860 acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST;
862 #ifdef ACPI_DEBUG_OUTPUT
863 acpi_gbl_lowest_stack_pointer = ACPI_SIZE_MAX;