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] = {
513 char *acpi_ut_get_event_name(u32 event_id)
516 if (event_id > ACPI_EVENT_MAX) {
517 return ("invalid_event_iD");
520 return ((char *)acpi_gbl_event_types[event_id]);
523 /*******************************************************************************
525 * FUNCTION: acpi_ut_get_type_name
531 * DESCRIPTION: Translate a Type ID into a name string (Debug only)
533 ******************************************************************************/
536 * Elements of acpi_gbl_ns_type_names below must match
537 * one-to-one with values of acpi_object_type
539 * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching;
540 * when stored in a table it really means that we have thus far seen no
541 * evidence to indicate what type is actually going to be stored for this entry.
543 static const char acpi_gbl_bad_type[] = "UNDEFINED";
545 /* Printable names of the ACPI object types */
547 static const char *acpi_gbl_ns_type_names[] = {
553 /* 05 */ "field_unit",
560 /* 12 */ "Processor",
562 /* 14 */ "buffer_field",
563 /* 15 */ "ddb_handle",
564 /* 16 */ "debug_object",
565 /* 17 */ "region_field",
566 /* 18 */ "bank_field",
567 /* 19 */ "index_field",
568 /* 20 */ "Reference",
570 /* 22 */ "method_alias",
572 /* 24 */ "addr_handler",
573 /* 25 */ "resource_desc",
574 /* 26 */ "resource_fld",
581 char *acpi_ut_get_type_name(acpi_object_type type)
584 if (type > ACPI_TYPE_INVALID) {
585 return ((char *)acpi_gbl_bad_type);
588 return ((char *)acpi_gbl_ns_type_names[type]);
591 char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc)
595 return ("[NULL Object Descriptor]");
598 return (acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc)));
601 /*******************************************************************************
603 * FUNCTION: acpi_ut_get_node_name
605 * PARAMETERS: Object - A namespace node
607 * RETURN: Pointer to a string
609 * DESCRIPTION: Validate the node and return the node's ACPI name.
611 ******************************************************************************/
613 char *acpi_ut_get_node_name(void *object)
615 struct acpi_namespace_node *node = (struct acpi_namespace_node *)object;
617 /* Must return a string of exactly 4 characters == ACPI_NAME_SIZE */
623 /* Check for Root node */
625 if ((object == ACPI_ROOT_OBJECT) || (object == acpi_gbl_root_node)) {
629 /* Descriptor must be a namespace node */
631 if (node->descriptor != ACPI_DESC_TYPE_NAMED) {
635 /* Name must be a valid ACPI name */
637 if (!acpi_ut_valid_acpi_name(*(u32 *) node->name.ascii)) {
641 /* Return the name */
643 return (node->name.ascii);
646 /*******************************************************************************
648 * FUNCTION: acpi_ut_get_descriptor_name
650 * PARAMETERS: Object - An ACPI object
652 * RETURN: Pointer to a string
654 * DESCRIPTION: Validate object and return the descriptor type
656 ******************************************************************************/
658 /* Printable names of object descriptor types */
660 static const char *acpi_gbl_desc_type_names[] = {
663 /* 02 */ "State-Generic",
664 /* 03 */ "State-Update",
665 /* 04 */ "State-Package",
666 /* 05 */ "State-Control",
667 /* 06 */ "State-root_parse_scope",
668 /* 07 */ "State-parse_scope",
669 /* 08 */ "State-walk_scope",
670 /* 09 */ "State-Result",
671 /* 10 */ "State-Notify",
672 /* 11 */ "State-Thread",
679 char *acpi_ut_get_descriptor_name(void *object)
683 return ("NULL OBJECT");
686 if (ACPI_GET_DESCRIPTOR_TYPE(object) > ACPI_DESC_TYPE_MAX) {
687 return ((char *)acpi_gbl_bad_type);
691 acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE(object)]);
695 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
697 * Strings and procedures used for debug only
700 /*******************************************************************************
702 * FUNCTION: acpi_ut_get_mutex_name
704 * PARAMETERS: mutex_id - The predefined ID for this mutex.
706 * RETURN: String containing the name of the mutex. Always returns a valid
709 * DESCRIPTION: Translate a mutex ID into a name string (Debug only)
711 ******************************************************************************/
713 char *acpi_ut_get_mutex_name(u32 mutex_id)
716 if (mutex_id > MAX_MUTEX) {
717 return ("Invalid Mutex ID");
720 return (acpi_gbl_mutex_names[mutex_id]);
724 /*******************************************************************************
726 * FUNCTION: acpi_ut_valid_object_type
728 * PARAMETERS: Type - Object type to be validated
730 * RETURN: TRUE if valid object type, FALSE otherwise
732 * DESCRIPTION: Validate an object type
734 ******************************************************************************/
736 u8 acpi_ut_valid_object_type(acpi_object_type type)
739 if (type > ACPI_TYPE_LOCAL_MAX) {
740 /* Note: Assumes all TYPEs are contiguous (external/local) */
748 /*******************************************************************************
750 * FUNCTION: acpi_ut_init_globals
756 * DESCRIPTION: Init library globals. All globals that require specific
757 * initialization should be initialized here!
759 ******************************************************************************/
761 void acpi_ut_init_globals(void)
766 ACPI_FUNCTION_TRACE("ut_init_globals");
768 /* Create all memory caches */
770 status = acpi_ut_create_caches();
771 if (ACPI_FAILURE(status)) {
775 /* ACPI table structure */
777 for (i = 0; i < NUM_ACPI_TABLE_TYPES; i++) {
778 acpi_gbl_table_lists[i].next = NULL;
779 acpi_gbl_table_lists[i].count = 0;
782 /* Mutex locked flags */
784 for (i = 0; i < NUM_MUTEX; i++) {
785 acpi_gbl_mutex_info[i].mutex = NULL;
786 acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
787 acpi_gbl_mutex_info[i].use_count = 0;
792 acpi_gbl_gpe_xrupt_list_head = NULL;
793 acpi_gbl_gpe_fadt_blocks[0] = NULL;
794 acpi_gbl_gpe_fadt_blocks[1] = NULL;
796 /* Global notify handlers */
798 acpi_gbl_system_notify.handler = NULL;
799 acpi_gbl_device_notify.handler = NULL;
800 acpi_gbl_exception_handler = NULL;
801 acpi_gbl_init_handler = NULL;
803 /* Global "typed" ACPI table pointers */
805 acpi_gbl_RSDP = NULL;
806 acpi_gbl_XSDT = NULL;
807 acpi_gbl_FACS = NULL;
808 acpi_gbl_FADT = NULL;
809 acpi_gbl_DSDT = NULL;
811 /* Global Lock support */
813 acpi_gbl_global_lock_acquired = FALSE;
814 acpi_gbl_global_lock_thread_count = 0;
815 acpi_gbl_global_lock_handle = 0;
817 /* Miscellaneous variables */
819 acpi_gbl_table_flags = ACPI_PHYSICAL_POINTER;
820 acpi_gbl_rsdp_original_location = 0;
821 acpi_gbl_cm_single_step = FALSE;
822 acpi_gbl_db_terminate_threads = FALSE;
823 acpi_gbl_shutdown = FALSE;
824 acpi_gbl_ns_lookup_count = 0;
825 acpi_gbl_ps_find_count = 0;
826 acpi_gbl_acpi_hardware_present = TRUE;
827 acpi_gbl_owner_id_mask = 0;
828 acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
829 acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
831 /* Hardware oriented */
833 acpi_gbl_events_initialized = FALSE;
834 acpi_gbl_system_awake_and_running = TRUE;
838 acpi_gbl_root_node = NULL;
840 acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
841 acpi_gbl_root_node_struct.descriptor = ACPI_DESC_TYPE_NAMED;
842 acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
843 acpi_gbl_root_node_struct.child = NULL;
844 acpi_gbl_root_node_struct.peer = NULL;
845 acpi_gbl_root_node_struct.object = NULL;
846 acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST;
848 #ifdef ACPI_DEBUG_OUTPUT
849 acpi_gbl_lowest_stack_pointer = ACPI_SIZE_MAX;