1 /******************************************************************************
2 *
3 * Module Name: utglobal - Global variables for the ACPI subsystem
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2008, Intel Corp.
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 "accommon.h"
48 #include "acnamesp.h"
49
50 #define _COMPONENT ACPI_UTILITIES
51 ACPI_MODULE_NAME("utglobal")
52
53 /*******************************************************************************
54 *
55 * Static global variable initialization.
56 *
57 ******************************************************************************/
58 /*
59 * We want the debug switches statically initialized so they
60 * are already set when the debugger is entered.
61 */
62 /* Debug switch - level and trace mask */
63 u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT;
64
65 /* Debug switch - layer (component) mask */
66
67 u32 acpi_dbg_layer = 0;
68 u32 acpi_gbl_nesting_level = 0;
69
70 /* Debugger globals */
71
72 u8 acpi_gbl_db_terminate_threads = FALSE;
73 u8 acpi_gbl_abort_method = FALSE;
74 u8 acpi_gbl_method_executing = FALSE;
75
76 /* System flags */
77
78 u32 acpi_gbl_startup_flags = 0;
79
80 /* System starts uninitialized */
81
82 u8 acpi_gbl_shutdown = TRUE;
83
84 const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
85 "\\_S0_",
86 "\\_S1_",
87 "\\_S2_",
88 "\\_S3_",
89 "\\_S4_",
90 "\\_S5_"
91 };
92
93 const char *acpi_gbl_highest_dstate_names[4] = {
94 "_S1D",
95 "_S2D",
96 "_S3D",
97 "_S4D"
98 };
99
100 /*******************************************************************************
101 *
102 * FUNCTION: acpi_format_exception
103 *
104 * PARAMETERS: Status - The acpi_status code to be formatted
105 *
106 * RETURN: A string containing the exception text. A valid pointer is
107 * always returned.
108 *
109 * DESCRIPTION: This function translates an ACPI exception into an ASCII string
110 * It is here instead of utxface.c so it is always present.
111 *
112 ******************************************************************************/
113
acpi_format_exception(acpi_status status)114 const char *acpi_format_exception(acpi_status status)
115 {
116 const char *exception = NULL;
117
118 ACPI_FUNCTION_ENTRY();
119
120 exception = acpi_ut_validate_exception(status);
121 if (!exception) {
122
123 /* Exception code was not recognized */
124
125 ACPI_ERROR((AE_INFO,
126 "Unknown exception code: 0x%8.8X", status));
127
128 exception = "UNKNOWN_STATUS_CODE";
129 dump_stack();
130 }
131
132 return (ACPI_CAST_PTR(const char, exception));
133 }
134
135 ACPI_EXPORT_SYMBOL(acpi_format_exception)
136
137 /*******************************************************************************
138 *
139 * Namespace globals
140 *
141 ******************************************************************************/
142 /*
143 * Predefined ACPI Names (Built-in to the Interpreter)
144 *
145 * NOTES:
146 * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
147 * during the initialization sequence.
148 * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
149 * perform a Notify() operation on it.
150 */
151 const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
152 {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
153 {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
154 {"_SB_", ACPI_TYPE_DEVICE, NULL},
155 {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
156 {"_TZ_", ACPI_TYPE_THERMAL, NULL},
157 {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL},
158 {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
159 {"_GL_", ACPI_TYPE_MUTEX, (char *)1},
160
161 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
162 {"_OSI", ACPI_TYPE_METHOD, (char *)1},
163 #endif
164
165 /* Table terminator */
166
167 {NULL, ACPI_TYPE_ANY, NULL}
168 };
169
170 /*
171 * Properties of the ACPI Object Types, both internal and external.
172 * The table is indexed by values of acpi_object_type
173 */
174 const u8 acpi_gbl_ns_properties[] = {
175 ACPI_NS_NORMAL, /* 00 Any */
176 ACPI_NS_NORMAL, /* 01 Number */
177 ACPI_NS_NORMAL, /* 02 String */
178 ACPI_NS_NORMAL, /* 03 Buffer */
179 ACPI_NS_NORMAL, /* 04 Package */
180 ACPI_NS_NORMAL, /* 05 field_unit */
181 ACPI_NS_NEWSCOPE, /* 06 Device */
182 ACPI_NS_NORMAL, /* 07 Event */
183 ACPI_NS_NEWSCOPE, /* 08 Method */
184 ACPI_NS_NORMAL, /* 09 Mutex */
185 ACPI_NS_NORMAL, /* 10 Region */
186 ACPI_NS_NEWSCOPE, /* 11 Power */
187 ACPI_NS_NEWSCOPE, /* 12 Processor */
188 ACPI_NS_NEWSCOPE, /* 13 Thermal */
189 ACPI_NS_NORMAL, /* 14 buffer_field */
190 ACPI_NS_NORMAL, /* 15 ddb_handle */
191 ACPI_NS_NORMAL, /* 16 Debug Object */
192 ACPI_NS_NORMAL, /* 17 def_field */
193 ACPI_NS_NORMAL, /* 18 bank_field */
194 ACPI_NS_NORMAL, /* 19 index_field */
195 ACPI_NS_NORMAL, /* 20 Reference */
196 ACPI_NS_NORMAL, /* 21 Alias */
197 ACPI_NS_NORMAL, /* 22 method_alias */
198 ACPI_NS_NORMAL, /* 23 Notify */
199 ACPI_NS_NORMAL, /* 24 Address Handler */
200 ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 25 Resource Desc */
201 ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 26 Resource Field */
202 ACPI_NS_NEWSCOPE, /* 27 Scope */
203 ACPI_NS_NORMAL, /* 28 Extra */
204 ACPI_NS_NORMAL, /* 29 Data */
205 ACPI_NS_NORMAL /* 30 Invalid */
206 };
207
208 /* Hex to ASCII conversion table */
209
210 static const char acpi_gbl_hex_to_ascii[] = {
211 '0', '1', '2', '3', '4', '5', '6', '7',
212 '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
213 };
214
215 /*******************************************************************************
216 *
217 * FUNCTION: acpi_ut_hex_to_ascii_char
218 *
219 * PARAMETERS: Integer - Contains the hex digit
220 * Position - bit position of the digit within the
221 * integer (multiple of 4)
222 *
223 * RETURN: The converted Ascii character
224 *
225 * DESCRIPTION: Convert a hex digit to an Ascii character
226 *
227 ******************************************************************************/
228
acpi_ut_hex_to_ascii_char(acpi_integer integer,u32 position)229 char acpi_ut_hex_to_ascii_char(acpi_integer integer, u32 position)
230 {
231
232 return (acpi_gbl_hex_to_ascii[(integer >> position) & 0xF]);
233 }
234
235 /******************************************************************************
236 *
237 * Event and Hardware globals
238 *
239 ******************************************************************************/
240
241 struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
242 /* Name Parent Register Register Bit Position Register Bit Mask */
243
244 /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
245 ACPI_BITPOSITION_TIMER_STATUS,
246 ACPI_BITMASK_TIMER_STATUS},
247 /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
248 ACPI_BITPOSITION_BUS_MASTER_STATUS,
249 ACPI_BITMASK_BUS_MASTER_STATUS},
250 /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
251 ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
252 ACPI_BITMASK_GLOBAL_LOCK_STATUS},
253 /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
254 ACPI_BITPOSITION_POWER_BUTTON_STATUS,
255 ACPI_BITMASK_POWER_BUTTON_STATUS},
256 /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
257 ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
258 ACPI_BITMASK_SLEEP_BUTTON_STATUS},
259 /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
260 ACPI_BITPOSITION_RT_CLOCK_STATUS,
261 ACPI_BITMASK_RT_CLOCK_STATUS},
262 /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
263 ACPI_BITPOSITION_WAKE_STATUS,
264 ACPI_BITMASK_WAKE_STATUS},
265 /* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
266 ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
267 ACPI_BITMASK_PCIEXP_WAKE_STATUS},
268
269 /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
270 ACPI_BITPOSITION_TIMER_ENABLE,
271 ACPI_BITMASK_TIMER_ENABLE},
272 /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
273 ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
274 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
275 /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
276 ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
277 ACPI_BITMASK_POWER_BUTTON_ENABLE},
278 /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
279 ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
280 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
281 /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
282 ACPI_BITPOSITION_RT_CLOCK_ENABLE,
283 ACPI_BITMASK_RT_CLOCK_ENABLE},
284 /* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE,
285 ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
286 ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
287
288 /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
289 ACPI_BITPOSITION_SCI_ENABLE,
290 ACPI_BITMASK_SCI_ENABLE},
291 /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL,
292 ACPI_BITPOSITION_BUS_MASTER_RLD,
293 ACPI_BITMASK_BUS_MASTER_RLD},
294 /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL,
295 ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
296 ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
297 /* ACPI_BITREG_SLEEP_TYPE_A */ {ACPI_REGISTER_PM1_CONTROL,
298 ACPI_BITPOSITION_SLEEP_TYPE_X,
299 ACPI_BITMASK_SLEEP_TYPE_X},
300 /* ACPI_BITREG_SLEEP_TYPE_B */ {ACPI_REGISTER_PM1_CONTROL,
301 ACPI_BITPOSITION_SLEEP_TYPE_X,
302 ACPI_BITMASK_SLEEP_TYPE_X},
303 /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
304 ACPI_BITPOSITION_SLEEP_ENABLE,
305 ACPI_BITMASK_SLEEP_ENABLE},
306
307 /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL,
308 ACPI_BITPOSITION_ARB_DISABLE,
309 ACPI_BITMASK_ARB_DISABLE}
310 };
311
312 struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = {
313 /* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS,
314 ACPI_BITREG_TIMER_ENABLE,
315 ACPI_BITMASK_TIMER_STATUS,
316 ACPI_BITMASK_TIMER_ENABLE},
317 /* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS,
318 ACPI_BITREG_GLOBAL_LOCK_ENABLE,
319 ACPI_BITMASK_GLOBAL_LOCK_STATUS,
320 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
321 /* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS,
322 ACPI_BITREG_POWER_BUTTON_ENABLE,
323 ACPI_BITMASK_POWER_BUTTON_STATUS,
324 ACPI_BITMASK_POWER_BUTTON_ENABLE},
325 /* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS,
326 ACPI_BITREG_SLEEP_BUTTON_ENABLE,
327 ACPI_BITMASK_SLEEP_BUTTON_STATUS,
328 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
329 /* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS,
330 ACPI_BITREG_RT_CLOCK_ENABLE,
331 ACPI_BITMASK_RT_CLOCK_STATUS,
332 ACPI_BITMASK_RT_CLOCK_ENABLE},
333 };
334
335 /*******************************************************************************
336 *
337 * FUNCTION: acpi_ut_get_region_name
338 *
339 * PARAMETERS: None.
340 *
341 * RETURN: Status
342 *
343 * DESCRIPTION: Translate a Space ID into a name string (Debug only)
344 *
345 ******************************************************************************/
346
347 /* Region type decoding */
348
349 const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = {
350 "SystemMemory",
351 "SystemIO",
352 "PCI_Config",
353 "EmbeddedControl",
354 "SMBus",
355 "SystemCMOS",
356 "PCIBARTarget",
357 "DataTable"
358 };
359
acpi_ut_get_region_name(u8 space_id)360 char *acpi_ut_get_region_name(u8 space_id)
361 {
362
363 if (space_id >= ACPI_USER_REGION_BEGIN) {
364 return ("UserDefinedRegion");
365 } else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) {
366 return ("InvalidSpaceId");
367 }
368
369 return (ACPI_CAST_PTR(char, acpi_gbl_region_types[space_id]));
370 }
371
372 /*******************************************************************************
373 *
374 * FUNCTION: acpi_ut_get_event_name
375 *
376 * PARAMETERS: None.
377 *
378 * RETURN: Status
379 *
380 * DESCRIPTION: Translate a Event ID into a name string (Debug only)
381 *
382 ******************************************************************************/
383
384 /* Event type decoding */
385
386 static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = {
387 "PM_Timer",
388 "GlobalLock",
389 "PowerButton",
390 "SleepButton",
391 "RealTimeClock",
392 };
393
acpi_ut_get_event_name(u32 event_id)394 char *acpi_ut_get_event_name(u32 event_id)
395 {
396
397 if (event_id > ACPI_EVENT_MAX) {
398 return ("InvalidEventID");
399 }
400
401 return (ACPI_CAST_PTR(char, acpi_gbl_event_types[event_id]));
402 }
403
404 /*******************************************************************************
405 *
406 * FUNCTION: acpi_ut_get_type_name
407 *
408 * PARAMETERS: None.
409 *
410 * RETURN: Status
411 *
412 * DESCRIPTION: Translate a Type ID into a name string (Debug only)
413 *
414 ******************************************************************************/
415
416 /*
417 * Elements of acpi_gbl_ns_type_names below must match
418 * one-to-one with values of acpi_object_type
419 *
420 * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching;
421 * when stored in a table it really means that we have thus far seen no
422 * evidence to indicate what type is actually going to be stored for this entry.
423 */
424 static const char acpi_gbl_bad_type[] = "UNDEFINED";
425
426 /* Printable names of the ACPI object types */
427
428 static const char *acpi_gbl_ns_type_names[] = {
429 /* 00 */ "Untyped",
430 /* 01 */ "Integer",
431 /* 02 */ "String",
432 /* 03 */ "Buffer",
433 /* 04 */ "Package",
434 /* 05 */ "FieldUnit",
435 /* 06 */ "Device",
436 /* 07 */ "Event",
437 /* 08 */ "Method",
438 /* 09 */ "Mutex",
439 /* 10 */ "Region",
440 /* 11 */ "Power",
441 /* 12 */ "Processor",
442 /* 13 */ "Thermal",
443 /* 14 */ "BufferField",
444 /* 15 */ "DdbHandle",
445 /* 16 */ "DebugObject",
446 /* 17 */ "RegionField",
447 /* 18 */ "BankField",
448 /* 19 */ "IndexField",
449 /* 20 */ "Reference",
450 /* 21 */ "Alias",
451 /* 22 */ "MethodAlias",
452 /* 23 */ "Notify",
453 /* 24 */ "AddrHandler",
454 /* 25 */ "ResourceDesc",
455 /* 26 */ "ResourceFld",
456 /* 27 */ "Scope",
457 /* 28 */ "Extra",
458 /* 29 */ "Data",
459 /* 30 */ "Invalid"
460 };
461
acpi_ut_get_type_name(acpi_object_type type)462 char *acpi_ut_get_type_name(acpi_object_type type)
463 {
464
465 if (type > ACPI_TYPE_INVALID) {
466 return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
467 }
468
469 return (ACPI_CAST_PTR(char, acpi_gbl_ns_type_names[type]));
470 }
471
acpi_ut_get_object_type_name(union acpi_operand_object * obj_desc)472 char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc)
473 {
474
475 if (!obj_desc) {
476 return ("[NULL Object Descriptor]");
477 }
478
479 return (acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc)));
480 }
481
482 /*******************************************************************************
483 *
484 * FUNCTION: acpi_ut_get_node_name
485 *
486 * PARAMETERS: Object - A namespace node
487 *
488 * RETURN: Pointer to a string
489 *
490 * DESCRIPTION: Validate the node and return the node's ACPI name.
491 *
492 ******************************************************************************/
493
acpi_ut_get_node_name(void * object)494 char *acpi_ut_get_node_name(void *object)
495 {
496 struct acpi_namespace_node *node = (struct acpi_namespace_node *)object;
497
498 /* Must return a string of exactly 4 characters == ACPI_NAME_SIZE */
499
500 if (!object) {
501 return ("NULL");
502 }
503
504 /* Check for Root node */
505
506 if ((object == ACPI_ROOT_OBJECT) || (object == acpi_gbl_root_node)) {
507 return ("\"\\\" ");
508 }
509
510 /* Descriptor must be a namespace node */
511
512 if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
513 return ("####");
514 }
515
516 /* Name must be a valid ACPI name */
517
518 if (!acpi_ut_valid_acpi_name(node->name.integer)) {
519 node->name.integer = acpi_ut_repair_name(node->name.ascii);
520 }
521
522 /* Return the name */
523
524 return (node->name.ascii);
525 }
526
527 /*******************************************************************************
528 *
529 * FUNCTION: acpi_ut_get_descriptor_name
530 *
531 * PARAMETERS: Object - An ACPI object
532 *
533 * RETURN: Pointer to a string
534 *
535 * DESCRIPTION: Validate object and return the descriptor type
536 *
537 ******************************************************************************/
538
539 /* Printable names of object descriptor types */
540
541 static const char *acpi_gbl_desc_type_names[] = {
542 /* 00 */ "Invalid",
543 /* 01 */ "Cached",
544 /* 02 */ "State-Generic",
545 /* 03 */ "State-Update",
546 /* 04 */ "State-Package",
547 /* 05 */ "State-Control",
548 /* 06 */ "State-RootParseScope",
549 /* 07 */ "State-ParseScope",
550 /* 08 */ "State-WalkScope",
551 /* 09 */ "State-Result",
552 /* 10 */ "State-Notify",
553 /* 11 */ "State-Thread",
554 /* 12 */ "Walk",
555 /* 13 */ "Parser",
556 /* 14 */ "Operand",
557 /* 15 */ "Node"
558 };
559
acpi_ut_get_descriptor_name(void * object)560 char *acpi_ut_get_descriptor_name(void *object)
561 {
562
563 if (!object) {
564 return ("NULL OBJECT");
565 }
566
567 if (ACPI_GET_DESCRIPTOR_TYPE(object) > ACPI_DESC_TYPE_MAX) {
568 return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
569 }
570
571 return (ACPI_CAST_PTR(char,
572 acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE
573 (object)]));
574
575 }
576
577 /*******************************************************************************
578 *
579 * FUNCTION: acpi_ut_get_reference_name
580 *
581 * PARAMETERS: Object - An ACPI reference object
582 *
583 * RETURN: Pointer to a string
584 *
585 * DESCRIPTION: Decode a reference object sub-type to a string.
586 *
587 ******************************************************************************/
588
589 /* Printable names of reference object sub-types */
590
591 static const char *acpi_gbl_ref_class_names[] = {
592 /* 00 */ "Local",
593 /* 01 */ "Argument",
594 /* 02 */ "RefOf",
595 /* 03 */ "Index",
596 /* 04 */ "DdbHandle",
597 /* 05 */ "Named Object",
598 /* 06 */ "Debug"
599 };
600
acpi_ut_get_reference_name(union acpi_operand_object * object)601 const char *acpi_ut_get_reference_name(union acpi_operand_object *object)
602 {
603 if (!object)
604 return "NULL Object";
605
606 if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND)
607 return "Not an Operand object";
608
609 if (object->common.type != ACPI_TYPE_LOCAL_REFERENCE)
610 return "Not a Reference object";
611
612 if (object->reference.class > ACPI_REFCLASS_MAX)
613 return "Unknown Reference class";
614
615 return acpi_gbl_ref_class_names[object->reference.class];
616 }
617
618 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
619 /*
620 * Strings and procedures used for debug only
621 */
622
623 /*******************************************************************************
624 *
625 * FUNCTION: acpi_ut_get_mutex_name
626 *
627 * PARAMETERS: mutex_id - The predefined ID for this mutex.
628 *
629 * RETURN: String containing the name of the mutex. Always returns a valid
630 * pointer.
631 *
632 * DESCRIPTION: Translate a mutex ID into a name string (Debug only)
633 *
634 ******************************************************************************/
635
acpi_ut_get_mutex_name(u32 mutex_id)636 char *acpi_ut_get_mutex_name(u32 mutex_id)
637 {
638
639 if (mutex_id > ACPI_MAX_MUTEX) {
640 return ("Invalid Mutex ID");
641 }
642
643 return (acpi_gbl_mutex_names[mutex_id]);
644 }
645
646 /*******************************************************************************
647 *
648 * FUNCTION: acpi_ut_get_notify_name
649 *
650 * PARAMETERS: notify_value - Value from the Notify() request
651 *
652 * RETURN: String corresponding to the Notify Value.
653 *
654 * DESCRIPTION: Translate a Notify Value to a notify namestring.
655 *
656 ******************************************************************************/
657
658 /* Names for Notify() values, used for debug output */
659
660 static const char *acpi_gbl_notify_value_names[] = {
661 "Bus Check",
662 "Device Check",
663 "Device Wake",
664 "Eject Request",
665 "Device Check Light",
666 "Frequency Mismatch",
667 "Bus Mode Mismatch",
668 "Power Fault",
669 "Capabilities Check",
670 "Device PLD Check",
671 "Reserved",
672 "System Locality Update"
673 };
674
acpi_ut_get_notify_name(u32 notify_value)675 const char *acpi_ut_get_notify_name(u32 notify_value)
676 {
677
678 if (notify_value <= ACPI_NOTIFY_MAX) {
679 return (acpi_gbl_notify_value_names[notify_value]);
680 } else if (notify_value <= ACPI_MAX_SYS_NOTIFY) {
681 return ("Reserved");
682 } else { /* Greater or equal to 0x80 */
683
684 return ("**Device Specific**");
685 }
686 }
687 #endif
688
689 /*******************************************************************************
690 *
691 * FUNCTION: acpi_ut_valid_object_type
692 *
693 * PARAMETERS: Type - Object type to be validated
694 *
695 * RETURN: TRUE if valid object type, FALSE otherwise
696 *
697 * DESCRIPTION: Validate an object type
698 *
699 ******************************************************************************/
700
acpi_ut_valid_object_type(acpi_object_type type)701 u8 acpi_ut_valid_object_type(acpi_object_type type)
702 {
703
704 if (type > ACPI_TYPE_LOCAL_MAX) {
705
706 /* Note: Assumes all TYPEs are contiguous (external/local) */
707
708 return (FALSE);
709 }
710
711 return (TRUE);
712 }
713
714 /*******************************************************************************
715 *
716 * FUNCTION: acpi_ut_init_globals
717 *
718 * PARAMETERS: None
719 *
720 * RETURN: Status
721 *
722 * DESCRIPTION: Init library globals. All globals that require specific
723 * initialization should be initialized here!
724 *
725 ******************************************************************************/
726
acpi_ut_init_globals(void)727 acpi_status acpi_ut_init_globals(void)
728 {
729 acpi_status status;
730 u32 i;
731
732 ACPI_FUNCTION_TRACE(ut_init_globals);
733
734 /* Create all memory caches */
735
736 status = acpi_ut_create_caches();
737 if (ACPI_FAILURE(status)) {
738 return_ACPI_STATUS(status);
739 }
740
741 /* Mutex locked flags */
742
743 for (i = 0; i < ACPI_NUM_MUTEX; i++) {
744 acpi_gbl_mutex_info[i].mutex = NULL;
745 acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
746 acpi_gbl_mutex_info[i].use_count = 0;
747 }
748
749 for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) {
750 acpi_gbl_owner_id_mask[i] = 0;
751 }
752 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; /* Last ID is never valid */
753
754 /* GPE support */
755
756 acpi_gbl_gpe_xrupt_list_head = NULL;
757 acpi_gbl_gpe_fadt_blocks[0] = NULL;
758 acpi_gbl_gpe_fadt_blocks[1] = NULL;
759 acpi_current_gpe_count = 0;
760
761 /* Global handlers */
762
763 acpi_gbl_system_notify.handler = NULL;
764 acpi_gbl_device_notify.handler = NULL;
765 acpi_gbl_exception_handler = NULL;
766 acpi_gbl_init_handler = NULL;
767 acpi_gbl_table_handler = NULL;
768
769 /* Global Lock support */
770
771 acpi_gbl_global_lock_semaphore = NULL;
772 acpi_gbl_global_lock_mutex = NULL;
773 acpi_gbl_global_lock_acquired = FALSE;
774 acpi_gbl_global_lock_handle = 0;
775 acpi_gbl_global_lock_present = FALSE;
776
777 /* Miscellaneous variables */
778
779 acpi_gbl_cm_single_step = FALSE;
780 acpi_gbl_db_terminate_threads = FALSE;
781 acpi_gbl_shutdown = FALSE;
782 acpi_gbl_ns_lookup_count = 0;
783 acpi_gbl_ps_find_count = 0;
784 acpi_gbl_acpi_hardware_present = TRUE;
785 acpi_gbl_last_owner_id_index = 0;
786 acpi_gbl_next_owner_id_offset = 0;
787 acpi_gbl_trace_method_name = 0;
788 acpi_gbl_trace_dbg_level = 0;
789 acpi_gbl_trace_dbg_layer = 0;
790 acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
791 acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
792
793 /* Hardware oriented */
794
795 acpi_gbl_events_initialized = FALSE;
796 acpi_gbl_system_awake_and_running = TRUE;
797
798 /* Namespace */
799
800 acpi_gbl_root_node = NULL;
801 acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
802 acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED;
803 acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
804 acpi_gbl_root_node_struct.child = NULL;
805 acpi_gbl_root_node_struct.peer = NULL;
806 acpi_gbl_root_node_struct.object = NULL;
807 acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST;
808
809 #ifdef ACPI_DEBUG_OUTPUT
810 acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX);
811 #endif
812
813 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
814 acpi_gbl_display_final_mem_stats = FALSE;
815 #endif
816
817 return_ACPI_STATUS(AE_OK);
818 }
819
820 ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
821 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
822 ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
823 ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)
824