mm-only debug patch...
[mmotm.git] / drivers / acpi / acpica / utglobal.c
blob3f2c68f4e9598a58df4896c9bb0ea128fb46bbec
1 /******************************************************************************
3 * Module Name: utglobal - Global variables for the ACPI subsystem
5 *****************************************************************************/
7 /*
8 * Copyright (C) 2000 - 2008, Intel Corp.
9 * All rights reserved.
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.
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.
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.
44 #define DEFINE_ACPI_GLOBALS
46 #include <acpi/acpi.h>
47 #include "accommon.h"
48 #include "acnamesp.h"
50 #define _COMPONENT ACPI_UTILITIES
51 ACPI_MODULE_NAME("utglobal")
53 /*******************************************************************************
55 * Static global variable initialization.
57 ******************************************************************************/
59 * We want the debug switches statically initialized so they
60 * are already set when the debugger is entered.
62 /* Debug switch - level and trace mask */
63 u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT;
65 /* Debug switch - layer (component) mask */
67 u32 acpi_dbg_layer = 0;
68 u32 acpi_gbl_nesting_level = 0;
70 /* Debugger globals */
72 u8 acpi_gbl_db_terminate_threads = FALSE;
73 u8 acpi_gbl_abort_method = FALSE;
74 u8 acpi_gbl_method_executing = FALSE;
76 /* System flags */
78 u32 acpi_gbl_startup_flags = 0;
80 /* System starts uninitialized */
82 u8 acpi_gbl_shutdown = TRUE;
84 const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
85 "\\_S0_",
86 "\\_S1_",
87 "\\_S2_",
88 "\\_S3_",
89 "\\_S4_",
90 "\\_S5_"
93 const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS] = {
94 "_S0W",
95 "_S1W",
96 "_S2W",
97 "_S3W",
98 "_S4W"
101 const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS] = {
102 "_S1D",
103 "_S2D",
104 "_S3D",
105 "_S4D"
108 /*******************************************************************************
110 * FUNCTION: acpi_format_exception
112 * PARAMETERS: Status - The acpi_status code to be formatted
114 * RETURN: A string containing the exception text. A valid pointer is
115 * always returned.
117 * DESCRIPTION: This function translates an ACPI exception into an ASCII string
118 * It is here instead of utxface.c so it is always present.
120 ******************************************************************************/
122 const char *acpi_format_exception(acpi_status status)
124 const char *exception = NULL;
126 ACPI_FUNCTION_ENTRY();
128 exception = acpi_ut_validate_exception(status);
129 if (!exception) {
131 /* Exception code was not recognized */
133 ACPI_ERROR((AE_INFO,
134 "Unknown exception code: 0x%8.8X", status));
136 exception = "UNKNOWN_STATUS_CODE";
137 dump_stack();
140 return (ACPI_CAST_PTR(const char, exception));
143 ACPI_EXPORT_SYMBOL(acpi_format_exception)
145 /*******************************************************************************
147 * Namespace globals
149 ******************************************************************************/
151 * Predefined ACPI Names (Built-in to the Interpreter)
153 * NOTES:
154 * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
155 * during the initialization sequence.
156 * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
157 * perform a Notify() operation on it.
159 const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
160 {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
161 {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
162 {"_SB_", ACPI_TYPE_DEVICE, NULL},
163 {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
164 {"_TZ_", ACPI_TYPE_THERMAL, NULL},
165 {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL},
166 {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
167 {"_GL_", ACPI_TYPE_MUTEX, (char *)1},
169 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
170 {"_OSI", ACPI_TYPE_METHOD, (char *)1},
171 #endif
173 /* Table terminator */
175 {NULL, ACPI_TYPE_ANY, NULL}
179 * Properties of the ACPI Object Types, both internal and external.
180 * The table is indexed by values of acpi_object_type
182 const u8 acpi_gbl_ns_properties[] = {
183 ACPI_NS_NORMAL, /* 00 Any */
184 ACPI_NS_NORMAL, /* 01 Number */
185 ACPI_NS_NORMAL, /* 02 String */
186 ACPI_NS_NORMAL, /* 03 Buffer */
187 ACPI_NS_NORMAL, /* 04 Package */
188 ACPI_NS_NORMAL, /* 05 field_unit */
189 ACPI_NS_NEWSCOPE, /* 06 Device */
190 ACPI_NS_NORMAL, /* 07 Event */
191 ACPI_NS_NEWSCOPE, /* 08 Method */
192 ACPI_NS_NORMAL, /* 09 Mutex */
193 ACPI_NS_NORMAL, /* 10 Region */
194 ACPI_NS_NEWSCOPE, /* 11 Power */
195 ACPI_NS_NEWSCOPE, /* 12 Processor */
196 ACPI_NS_NEWSCOPE, /* 13 Thermal */
197 ACPI_NS_NORMAL, /* 14 buffer_field */
198 ACPI_NS_NORMAL, /* 15 ddb_handle */
199 ACPI_NS_NORMAL, /* 16 Debug Object */
200 ACPI_NS_NORMAL, /* 17 def_field */
201 ACPI_NS_NORMAL, /* 18 bank_field */
202 ACPI_NS_NORMAL, /* 19 index_field */
203 ACPI_NS_NORMAL, /* 20 Reference */
204 ACPI_NS_NORMAL, /* 21 Alias */
205 ACPI_NS_NORMAL, /* 22 method_alias */
206 ACPI_NS_NORMAL, /* 23 Notify */
207 ACPI_NS_NORMAL, /* 24 Address Handler */
208 ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 25 Resource Desc */
209 ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 26 Resource Field */
210 ACPI_NS_NEWSCOPE, /* 27 Scope */
211 ACPI_NS_NORMAL, /* 28 Extra */
212 ACPI_NS_NORMAL, /* 29 Data */
213 ACPI_NS_NORMAL /* 30 Invalid */
216 /* Hex to ASCII conversion table */
218 static const char acpi_gbl_hex_to_ascii[] = {
219 '0', '1', '2', '3', '4', '5', '6', '7',
220 '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
223 /*******************************************************************************
225 * FUNCTION: acpi_ut_hex_to_ascii_char
227 * PARAMETERS: Integer - Contains the hex digit
228 * Position - bit position of the digit within the
229 * integer (multiple of 4)
231 * RETURN: The converted Ascii character
233 * DESCRIPTION: Convert a hex digit to an Ascii character
235 ******************************************************************************/
237 char acpi_ut_hex_to_ascii_char(acpi_integer integer, u32 position)
240 return (acpi_gbl_hex_to_ascii[(integer >> position) & 0xF]);
243 /******************************************************************************
245 * Event and Hardware globals
247 ******************************************************************************/
249 struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
250 /* Name Parent Register Register Bit Position Register Bit Mask */
252 /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
253 ACPI_BITPOSITION_TIMER_STATUS,
254 ACPI_BITMASK_TIMER_STATUS},
255 /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
256 ACPI_BITPOSITION_BUS_MASTER_STATUS,
257 ACPI_BITMASK_BUS_MASTER_STATUS},
258 /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
259 ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
260 ACPI_BITMASK_GLOBAL_LOCK_STATUS},
261 /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
262 ACPI_BITPOSITION_POWER_BUTTON_STATUS,
263 ACPI_BITMASK_POWER_BUTTON_STATUS},
264 /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
265 ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
266 ACPI_BITMASK_SLEEP_BUTTON_STATUS},
267 /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
268 ACPI_BITPOSITION_RT_CLOCK_STATUS,
269 ACPI_BITMASK_RT_CLOCK_STATUS},
270 /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
271 ACPI_BITPOSITION_WAKE_STATUS,
272 ACPI_BITMASK_WAKE_STATUS},
273 /* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
274 ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
275 ACPI_BITMASK_PCIEXP_WAKE_STATUS},
277 /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
278 ACPI_BITPOSITION_TIMER_ENABLE,
279 ACPI_BITMASK_TIMER_ENABLE},
280 /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
281 ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
282 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
283 /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
284 ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
285 ACPI_BITMASK_POWER_BUTTON_ENABLE},
286 /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
287 ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
288 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
289 /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
290 ACPI_BITPOSITION_RT_CLOCK_ENABLE,
291 ACPI_BITMASK_RT_CLOCK_ENABLE},
292 /* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE,
293 ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
294 ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
296 /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
297 ACPI_BITPOSITION_SCI_ENABLE,
298 ACPI_BITMASK_SCI_ENABLE},
299 /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL,
300 ACPI_BITPOSITION_BUS_MASTER_RLD,
301 ACPI_BITMASK_BUS_MASTER_RLD},
302 /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL,
303 ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
304 ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
305 /* ACPI_BITREG_SLEEP_TYPE */ {ACPI_REGISTER_PM1_CONTROL,
306 ACPI_BITPOSITION_SLEEP_TYPE,
307 ACPI_BITMASK_SLEEP_TYPE},
308 /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
309 ACPI_BITPOSITION_SLEEP_ENABLE,
310 ACPI_BITMASK_SLEEP_ENABLE},
312 /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL,
313 ACPI_BITPOSITION_ARB_DISABLE,
314 ACPI_BITMASK_ARB_DISABLE}
317 struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = {
318 /* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS,
319 ACPI_BITREG_TIMER_ENABLE,
320 ACPI_BITMASK_TIMER_STATUS,
321 ACPI_BITMASK_TIMER_ENABLE},
322 /* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS,
323 ACPI_BITREG_GLOBAL_LOCK_ENABLE,
324 ACPI_BITMASK_GLOBAL_LOCK_STATUS,
325 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
326 /* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS,
327 ACPI_BITREG_POWER_BUTTON_ENABLE,
328 ACPI_BITMASK_POWER_BUTTON_STATUS,
329 ACPI_BITMASK_POWER_BUTTON_ENABLE},
330 /* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS,
331 ACPI_BITREG_SLEEP_BUTTON_ENABLE,
332 ACPI_BITMASK_SLEEP_BUTTON_STATUS,
333 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
334 /* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS,
335 ACPI_BITREG_RT_CLOCK_ENABLE,
336 ACPI_BITMASK_RT_CLOCK_STATUS,
337 ACPI_BITMASK_RT_CLOCK_ENABLE},
340 /*******************************************************************************
342 * FUNCTION: acpi_ut_get_region_name
344 * PARAMETERS: None.
346 * RETURN: Status
348 * DESCRIPTION: Translate a Space ID into a name string (Debug only)
350 ******************************************************************************/
352 /* Region type decoding */
354 const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = {
355 "SystemMemory",
356 "SystemIO",
357 "PCI_Config",
358 "EmbeddedControl",
359 "SMBus",
360 "SystemCMOS",
361 "PCIBARTarget",
362 "IPMI",
363 "DataTable"
366 char *acpi_ut_get_region_name(u8 space_id)
369 if (space_id >= ACPI_USER_REGION_BEGIN) {
370 return ("UserDefinedRegion");
371 } else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) {
372 return ("InvalidSpaceId");
375 return (ACPI_CAST_PTR(char, acpi_gbl_region_types[space_id]));
378 /*******************************************************************************
380 * FUNCTION: acpi_ut_get_event_name
382 * PARAMETERS: None.
384 * RETURN: Status
386 * DESCRIPTION: Translate a Event ID into a name string (Debug only)
388 ******************************************************************************/
390 /* Event type decoding */
392 static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = {
393 "PM_Timer",
394 "GlobalLock",
395 "PowerButton",
396 "SleepButton",
397 "RealTimeClock",
400 char *acpi_ut_get_event_name(u32 event_id)
403 if (event_id > ACPI_EVENT_MAX) {
404 return ("InvalidEventID");
407 return (ACPI_CAST_PTR(char, acpi_gbl_event_types[event_id]));
410 /*******************************************************************************
412 * FUNCTION: acpi_ut_get_type_name
414 * PARAMETERS: None.
416 * RETURN: Status
418 * DESCRIPTION: Translate a Type ID into a name string (Debug only)
420 ******************************************************************************/
423 * Elements of acpi_gbl_ns_type_names below must match
424 * one-to-one with values of acpi_object_type
426 * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching;
427 * when stored in a table it really means that we have thus far seen no
428 * evidence to indicate what type is actually going to be stored for this entry.
430 static const char acpi_gbl_bad_type[] = "UNDEFINED";
432 /* Printable names of the ACPI object types */
434 static const char *acpi_gbl_ns_type_names[] = {
435 /* 00 */ "Untyped",
436 /* 01 */ "Integer",
437 /* 02 */ "String",
438 /* 03 */ "Buffer",
439 /* 04 */ "Package",
440 /* 05 */ "FieldUnit",
441 /* 06 */ "Device",
442 /* 07 */ "Event",
443 /* 08 */ "Method",
444 /* 09 */ "Mutex",
445 /* 10 */ "Region",
446 /* 11 */ "Power",
447 /* 12 */ "Processor",
448 /* 13 */ "Thermal",
449 /* 14 */ "BufferField",
450 /* 15 */ "DdbHandle",
451 /* 16 */ "DebugObject",
452 /* 17 */ "RegionField",
453 /* 18 */ "BankField",
454 /* 19 */ "IndexField",
455 /* 20 */ "Reference",
456 /* 21 */ "Alias",
457 /* 22 */ "MethodAlias",
458 /* 23 */ "Notify",
459 /* 24 */ "AddrHandler",
460 /* 25 */ "ResourceDesc",
461 /* 26 */ "ResourceFld",
462 /* 27 */ "Scope",
463 /* 28 */ "Extra",
464 /* 29 */ "Data",
465 /* 30 */ "Invalid"
468 char *acpi_ut_get_type_name(acpi_object_type type)
471 if (type > ACPI_TYPE_INVALID) {
472 return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
475 return (ACPI_CAST_PTR(char, acpi_gbl_ns_type_names[type]));
478 char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc)
481 if (!obj_desc) {
482 return ("[NULL Object Descriptor]");
485 return (acpi_ut_get_type_name(obj_desc->common.type));
488 /*******************************************************************************
490 * FUNCTION: acpi_ut_get_node_name
492 * PARAMETERS: Object - A namespace node
494 * RETURN: Pointer to a string
496 * DESCRIPTION: Validate the node and return the node's ACPI name.
498 ******************************************************************************/
500 char *acpi_ut_get_node_name(void *object)
502 struct acpi_namespace_node *node = (struct acpi_namespace_node *)object;
504 /* Must return a string of exactly 4 characters == ACPI_NAME_SIZE */
506 if (!object) {
507 return ("NULL");
510 /* Check for Root node */
512 if ((object == ACPI_ROOT_OBJECT) || (object == acpi_gbl_root_node)) {
513 return ("\"\\\" ");
516 /* Descriptor must be a namespace node */
518 if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
519 return ("####");
522 /* Name must be a valid ACPI name */
524 if (!acpi_ut_valid_acpi_name(node->name.integer)) {
525 node->name.integer = acpi_ut_repair_name(node->name.ascii);
528 /* Return the name */
530 return (node->name.ascii);
533 /*******************************************************************************
535 * FUNCTION: acpi_ut_get_descriptor_name
537 * PARAMETERS: Object - An ACPI object
539 * RETURN: Pointer to a string
541 * DESCRIPTION: Validate object and return the descriptor type
543 ******************************************************************************/
545 /* Printable names of object descriptor types */
547 static const char *acpi_gbl_desc_type_names[] = {
548 /* 00 */ "Invalid",
549 /* 01 */ "Cached",
550 /* 02 */ "State-Generic",
551 /* 03 */ "State-Update",
552 /* 04 */ "State-Package",
553 /* 05 */ "State-Control",
554 /* 06 */ "State-RootParseScope",
555 /* 07 */ "State-ParseScope",
556 /* 08 */ "State-WalkScope",
557 /* 09 */ "State-Result",
558 /* 10 */ "State-Notify",
559 /* 11 */ "State-Thread",
560 /* 12 */ "Walk",
561 /* 13 */ "Parser",
562 /* 14 */ "Operand",
563 /* 15 */ "Node"
566 char *acpi_ut_get_descriptor_name(void *object)
569 if (!object) {
570 return ("NULL OBJECT");
573 if (ACPI_GET_DESCRIPTOR_TYPE(object) > ACPI_DESC_TYPE_MAX) {
574 return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
577 return (ACPI_CAST_PTR(char,
578 acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE
579 (object)]));
583 /*******************************************************************************
585 * FUNCTION: acpi_ut_get_reference_name
587 * PARAMETERS: Object - An ACPI reference object
589 * RETURN: Pointer to a string
591 * DESCRIPTION: Decode a reference object sub-type to a string.
593 ******************************************************************************/
595 /* Printable names of reference object sub-types */
597 static const char *acpi_gbl_ref_class_names[] = {
598 /* 00 */ "Local",
599 /* 01 */ "Argument",
600 /* 02 */ "RefOf",
601 /* 03 */ "Index",
602 /* 04 */ "DdbHandle",
603 /* 05 */ "Named Object",
604 /* 06 */ "Debug"
607 const char *acpi_ut_get_reference_name(union acpi_operand_object *object)
609 if (!object)
610 return "NULL Object";
612 if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND)
613 return "Not an Operand object";
615 if (object->common.type != ACPI_TYPE_LOCAL_REFERENCE)
616 return "Not a Reference object";
618 if (object->reference.class > ACPI_REFCLASS_MAX)
619 return "Unknown Reference class";
621 return acpi_gbl_ref_class_names[object->reference.class];
624 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
626 * Strings and procedures used for debug only
629 /*******************************************************************************
631 * FUNCTION: acpi_ut_get_mutex_name
633 * PARAMETERS: mutex_id - The predefined ID for this mutex.
635 * RETURN: String containing the name of the mutex. Always returns a valid
636 * pointer.
638 * DESCRIPTION: Translate a mutex ID into a name string (Debug only)
640 ******************************************************************************/
642 char *acpi_ut_get_mutex_name(u32 mutex_id)
645 if (mutex_id > ACPI_MAX_MUTEX) {
646 return ("Invalid Mutex ID");
649 return (acpi_gbl_mutex_names[mutex_id]);
652 /*******************************************************************************
654 * FUNCTION: acpi_ut_get_notify_name
656 * PARAMETERS: notify_value - Value from the Notify() request
658 * RETURN: String corresponding to the Notify Value.
660 * DESCRIPTION: Translate a Notify Value to a notify namestring.
662 ******************************************************************************/
664 /* Names for Notify() values, used for debug output */
666 static const char *acpi_gbl_notify_value_names[] = {
667 "Bus Check",
668 "Device Check",
669 "Device Wake",
670 "Eject Request",
671 "Device Check Light",
672 "Frequency Mismatch",
673 "Bus Mode Mismatch",
674 "Power Fault",
675 "Capabilities Check",
676 "Device PLD Check",
677 "Reserved",
678 "System Locality Update"
681 const char *acpi_ut_get_notify_name(u32 notify_value)
684 if (notify_value <= ACPI_NOTIFY_MAX) {
685 return (acpi_gbl_notify_value_names[notify_value]);
686 } else if (notify_value <= ACPI_MAX_SYS_NOTIFY) {
687 return ("Reserved");
688 } else { /* Greater or equal to 0x80 */
690 return ("**Device Specific**");
693 #endif
695 /*******************************************************************************
697 * FUNCTION: acpi_ut_valid_object_type
699 * PARAMETERS: Type - Object type to be validated
701 * RETURN: TRUE if valid object type, FALSE otherwise
703 * DESCRIPTION: Validate an object type
705 ******************************************************************************/
707 u8 acpi_ut_valid_object_type(acpi_object_type type)
710 if (type > ACPI_TYPE_LOCAL_MAX) {
712 /* Note: Assumes all TYPEs are contiguous (external/local) */
714 return (FALSE);
717 return (TRUE);
720 /*******************************************************************************
722 * FUNCTION: acpi_ut_init_globals
724 * PARAMETERS: None
726 * RETURN: Status
728 * DESCRIPTION: Init library globals. All globals that require specific
729 * initialization should be initialized here!
731 ******************************************************************************/
733 acpi_status acpi_ut_init_globals(void)
735 acpi_status status;
736 u32 i;
738 ACPI_FUNCTION_TRACE(ut_init_globals);
740 /* Create all memory caches */
742 status = acpi_ut_create_caches();
743 if (ACPI_FAILURE(status)) {
744 return_ACPI_STATUS(status);
747 /* Mutex locked flags */
749 for (i = 0; i < ACPI_NUM_MUTEX; i++) {
750 acpi_gbl_mutex_info[i].mutex = NULL;
751 acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
752 acpi_gbl_mutex_info[i].use_count = 0;
755 for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) {
756 acpi_gbl_owner_id_mask[i] = 0;
759 /* Last owner_iD is never valid */
761 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000;
763 /* GPE support */
765 acpi_gbl_gpe_xrupt_list_head = NULL;
766 acpi_gbl_gpe_fadt_blocks[0] = NULL;
767 acpi_gbl_gpe_fadt_blocks[1] = NULL;
768 acpi_current_gpe_count = 0;
770 /* Global handlers */
772 acpi_gbl_system_notify.handler = NULL;
773 acpi_gbl_device_notify.handler = NULL;
774 acpi_gbl_exception_handler = NULL;
775 acpi_gbl_init_handler = NULL;
776 acpi_gbl_table_handler = NULL;
778 /* Global Lock support */
780 acpi_gbl_global_lock_semaphore = NULL;
781 acpi_gbl_global_lock_mutex = NULL;
782 acpi_gbl_global_lock_acquired = FALSE;
783 acpi_gbl_global_lock_handle = 0;
784 acpi_gbl_global_lock_present = FALSE;
786 /* Miscellaneous variables */
788 acpi_gbl_cm_single_step = FALSE;
789 acpi_gbl_db_terminate_threads = FALSE;
790 acpi_gbl_shutdown = FALSE;
791 acpi_gbl_ns_lookup_count = 0;
792 acpi_gbl_ps_find_count = 0;
793 acpi_gbl_acpi_hardware_present = TRUE;
794 acpi_gbl_last_owner_id_index = 0;
795 acpi_gbl_next_owner_id_offset = 0;
796 acpi_gbl_trace_method_name = 0;
797 acpi_gbl_trace_dbg_level = 0;
798 acpi_gbl_trace_dbg_layer = 0;
799 acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
800 acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
801 acpi_gbl_osi_data = 0;
803 /* Hardware oriented */
805 acpi_gbl_events_initialized = FALSE;
806 acpi_gbl_system_awake_and_running = TRUE;
808 /* Namespace */
810 acpi_gbl_module_code_list = NULL;
811 acpi_gbl_root_node = NULL;
812 acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
813 acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED;
814 acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
815 acpi_gbl_root_node_struct.child = NULL;
816 acpi_gbl_root_node_struct.peer = NULL;
817 acpi_gbl_root_node_struct.object = NULL;
818 acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST;
820 #ifdef ACPI_DEBUG_OUTPUT
821 acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX);
822 #endif
824 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
825 acpi_gbl_display_final_mem_stats = FALSE;
826 #endif
828 return_ACPI_STATUS(AE_OK);
831 ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
832 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
833 ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
834 ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)