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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * Module Name: utglobal - Global variables for the ACPI subsystem | |
4 | * | |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
75a44ce0 | 8 | * Copyright (C) 2000 - 2008, Intel Corp. |
1da177e4 LT |
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 | ||
1da177e4 LT |
46 | #include <acpi/acpi.h> |
47 | #include <acpi/acnamesp.h> | |
48 | ||
49 | #define _COMPONENT ACPI_UTILITIES | |
e97d6bf1 | 50 | ACPI_MODULE_NAME("utglobal") |
1da177e4 | 51 | |
44f6c012 | 52 | /******************************************************************************* |
1da177e4 LT |
53 | * |
54 | * Static global variable initialization. | |
55 | * | |
56 | ******************************************************************************/ | |
1da177e4 LT |
57 | /* |
58 | * We want the debug switches statically initialized so they | |
59 | * are already set when the debugger is entered. | |
60 | */ | |
1da177e4 | 61 | /* Debug switch - level and trace mask */ |
4be44fcd | 62 | u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT; |
1da177e4 LT |
63 | |
64 | /* Debug switch - layer (component) mask */ | |
65 | ||
e76f4276 | 66 | u32 acpi_dbg_layer = 0; |
4be44fcd | 67 | u32 acpi_gbl_nesting_level = 0; |
1da177e4 LT |
68 | |
69 | /* Debugger globals */ | |
70 | ||
4be44fcd LB |
71 | u8 acpi_gbl_db_terminate_threads = FALSE; |
72 | u8 acpi_gbl_abort_method = FALSE; | |
73 | u8 acpi_gbl_method_executing = FALSE; | |
1da177e4 LT |
74 | |
75 | /* System flags */ | |
76 | ||
4be44fcd | 77 | u32 acpi_gbl_startup_flags = 0; |
1da177e4 LT |
78 | |
79 | /* System starts uninitialized */ | |
80 | ||
4be44fcd | 81 | u8 acpi_gbl_shutdown = TRUE; |
1da177e4 | 82 | |
4be44fcd | 83 | const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = { |
1da177e4 LT |
84 | "\\_S0_", |
85 | "\\_S1_", | |
86 | "\\_S2_", | |
87 | "\\_S3_", | |
88 | "\\_S4_", | |
89 | "\\_S5_" | |
90 | }; | |
91 | ||
4be44fcd | 92 | const char *acpi_gbl_highest_dstate_names[4] = { |
1da177e4 LT |
93 | "_S1D", |
94 | "_S2D", | |
95 | "_S3D", | |
96 | "_S4D" | |
97 | }; | |
98 | ||
44f6c012 | 99 | /******************************************************************************* |
1da177e4 | 100 | * |
84fb2c97 BM |
101 | * FUNCTION: acpi_format_exception |
102 | * | |
103 | * PARAMETERS: Status - The acpi_status code to be formatted | |
104 | * | |
105 | * RETURN: A string containing the exception text. A valid pointer is | |
106 | * always returned. | |
107 | * | |
108 | * DESCRIPTION: This function translates an ACPI exception into an ASCII string | |
109 | * It is here instead of utxface.c so it is always present. | |
1da177e4 LT |
110 | * |
111 | ******************************************************************************/ | |
112 | ||
84fb2c97 BM |
113 | const char *acpi_format_exception(acpi_status status) |
114 | { | |
115 | const char *exception = NULL; | |
116 | ||
117 | ACPI_FUNCTION_ENTRY(); | |
118 | ||
119 | exception = acpi_ut_validate_exception(status); | |
120 | if (!exception) { | |
121 | ||
122 | /* Exception code was not recognized */ | |
123 | ||
124 | ACPI_ERROR((AE_INFO, | |
125 | "Unknown exception code: 0x%8.8X", status)); | |
126 | ||
127 | exception = "UNKNOWN_STATUS_CODE"; | |
3e0d69ec | 128 | dump_stack(); |
84fb2c97 BM |
129 | } |
130 | ||
131 | return (ACPI_CAST_PTR(const char, exception)); | |
132 | } | |
133 | ||
134 | ACPI_EXPORT_SYMBOL(acpi_format_exception) | |
135 | ||
136 | /******************************************************************************* | |
137 | * | |
138 | * Namespace globals | |
139 | * | |
140 | ******************************************************************************/ | |
1da177e4 LT |
141 | /* |
142 | * Predefined ACPI Names (Built-in to the Interpreter) | |
143 | * | |
144 | * NOTES: | |
145 | * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run | |
146 | * during the initialization sequence. | |
147 | * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to | |
148 | * perform a Notify() operation on it. | |
149 | */ | |
0897831b BM |
150 | const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = { |
151 | {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL}, | |
152 | {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL}, | |
153 | {"_SB_", ACPI_TYPE_DEVICE, NULL}, | |
154 | {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL}, | |
155 | {"_TZ_", ACPI_TYPE_THERMAL, NULL}, | |
156 | {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL}, | |
157 | {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME}, | |
158 | {"_GL_", ACPI_TYPE_MUTEX, (char *)1}, | |
1da177e4 LT |
159 | |
160 | #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY) | |
0897831b | 161 | {"_OSI", ACPI_TYPE_METHOD, (char *)1}, |
1da177e4 | 162 | #endif |
1da177e4 | 163 | |
44f6c012 RM |
164 | /* Table terminator */ |
165 | ||
0897831b | 166 | {NULL, ACPI_TYPE_ANY, NULL} |
44f6c012 | 167 | }; |
1da177e4 LT |
168 | |
169 | /* | |
170 | * Properties of the ACPI Object Types, both internal and external. | |
171 | * The table is indexed by values of acpi_object_type | |
172 | */ | |
4be44fcd LB |
173 | const u8 acpi_gbl_ns_properties[] = { |
174 | ACPI_NS_NORMAL, /* 00 Any */ | |
175 | ACPI_NS_NORMAL, /* 01 Number */ | |
176 | ACPI_NS_NORMAL, /* 02 String */ | |
177 | ACPI_NS_NORMAL, /* 03 Buffer */ | |
178 | ACPI_NS_NORMAL, /* 04 Package */ | |
179 | ACPI_NS_NORMAL, /* 05 field_unit */ | |
180 | ACPI_NS_NEWSCOPE, /* 06 Device */ | |
181 | ACPI_NS_NORMAL, /* 07 Event */ | |
182 | ACPI_NS_NEWSCOPE, /* 08 Method */ | |
183 | ACPI_NS_NORMAL, /* 09 Mutex */ | |
184 | ACPI_NS_NORMAL, /* 10 Region */ | |
185 | ACPI_NS_NEWSCOPE, /* 11 Power */ | |
186 | ACPI_NS_NEWSCOPE, /* 12 Processor */ | |
187 | ACPI_NS_NEWSCOPE, /* 13 Thermal */ | |
188 | ACPI_NS_NORMAL, /* 14 buffer_field */ | |
189 | ACPI_NS_NORMAL, /* 15 ddb_handle */ | |
190 | ACPI_NS_NORMAL, /* 16 Debug Object */ | |
191 | ACPI_NS_NORMAL, /* 17 def_field */ | |
192 | ACPI_NS_NORMAL, /* 18 bank_field */ | |
193 | ACPI_NS_NORMAL, /* 19 index_field */ | |
194 | ACPI_NS_NORMAL, /* 20 Reference */ | |
195 | ACPI_NS_NORMAL, /* 21 Alias */ | |
196 | ACPI_NS_NORMAL, /* 22 method_alias */ | |
197 | ACPI_NS_NORMAL, /* 23 Notify */ | |
198 | ACPI_NS_NORMAL, /* 24 Address Handler */ | |
199 | ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 25 Resource Desc */ | |
200 | ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 26 Resource Field */ | |
201 | ACPI_NS_NEWSCOPE, /* 27 Scope */ | |
202 | ACPI_NS_NORMAL, /* 28 Extra */ | |
203 | ACPI_NS_NORMAL, /* 29 Data */ | |
204 | ACPI_NS_NORMAL /* 30 Invalid */ | |
1da177e4 LT |
205 | }; |
206 | ||
1da177e4 LT |
207 | /* Hex to ASCII conversion table */ |
208 | ||
4be44fcd LB |
209 | static const char acpi_gbl_hex_to_ascii[] = { |
210 | '0', '1', '2', '3', '4', '5', '6', '7', | |
211 | '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' | |
44f6c012 RM |
212 | }; |
213 | ||
44f6c012 | 214 | /******************************************************************************* |
1da177e4 LT |
215 | * |
216 | * FUNCTION: acpi_ut_hex_to_ascii_char | |
217 | * | |
218 | * PARAMETERS: Integer - Contains the hex digit | |
219 | * Position - bit position of the digit within the | |
44f6c012 | 220 | * integer (multiple of 4) |
1da177e4 | 221 | * |
44f6c012 | 222 | * RETURN: The converted Ascii character |
1da177e4 | 223 | * |
44f6c012 | 224 | * DESCRIPTION: Convert a hex digit to an Ascii character |
1da177e4 | 225 | * |
44f6c012 | 226 | ******************************************************************************/ |
1da177e4 | 227 | |
4be44fcd | 228 | char acpi_ut_hex_to_ascii_char(acpi_integer integer, u32 position) |
1da177e4 LT |
229 | { |
230 | ||
231 | return (acpi_gbl_hex_to_ascii[(integer >> position) & 0xF]); | |
232 | } | |
233 | ||
1da177e4 LT |
234 | /****************************************************************************** |
235 | * | |
236 | * Event and Hardware globals | |
237 | * | |
238 | ******************************************************************************/ | |
239 | ||
4be44fcd | 240 | struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = { |
1da177e4 LT |
241 | /* Name Parent Register Register Bit Position Register Bit Mask */ |
242 | ||
4be44fcd LB |
243 | /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS, |
244 | ACPI_BITPOSITION_TIMER_STATUS, | |
245 | ACPI_BITMASK_TIMER_STATUS}, | |
246 | /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS, | |
247 | ACPI_BITPOSITION_BUS_MASTER_STATUS, | |
248 | ACPI_BITMASK_BUS_MASTER_STATUS}, | |
249 | /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, | |
250 | ACPI_BITPOSITION_GLOBAL_LOCK_STATUS, | |
251 | ACPI_BITMASK_GLOBAL_LOCK_STATUS}, | |
252 | /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, | |
253 | ACPI_BITPOSITION_POWER_BUTTON_STATUS, | |
254 | ACPI_BITMASK_POWER_BUTTON_STATUS}, | |
255 | /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, | |
256 | ACPI_BITPOSITION_SLEEP_BUTTON_STATUS, | |
257 | ACPI_BITMASK_SLEEP_BUTTON_STATUS}, | |
258 | /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, | |
259 | ACPI_BITPOSITION_RT_CLOCK_STATUS, | |
260 | ACPI_BITMASK_RT_CLOCK_STATUS}, | |
261 | /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS, | |
262 | ACPI_BITPOSITION_WAKE_STATUS, | |
263 | ACPI_BITMASK_WAKE_STATUS}, | |
264 | /* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS, | |
265 | ACPI_BITPOSITION_PCIEXP_WAKE_STATUS, | |
266 | ACPI_BITMASK_PCIEXP_WAKE_STATUS}, | |
267 | ||
268 | /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, | |
269 | ACPI_BITPOSITION_TIMER_ENABLE, | |
270 | ACPI_BITMASK_TIMER_ENABLE}, | |
271 | /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, | |
272 | ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE, | |
273 | ACPI_BITMASK_GLOBAL_LOCK_ENABLE}, | |
274 | /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, | |
275 | ACPI_BITPOSITION_POWER_BUTTON_ENABLE, | |
276 | ACPI_BITMASK_POWER_BUTTON_ENABLE}, | |
277 | /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, | |
278 | ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE, | |
279 | ACPI_BITMASK_SLEEP_BUTTON_ENABLE}, | |
280 | /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, | |
281 | ACPI_BITPOSITION_RT_CLOCK_ENABLE, | |
282 | ACPI_BITMASK_RT_CLOCK_ENABLE}, | |
4be44fcd LB |
283 | /* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE, |
284 | ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE, | |
285 | ACPI_BITMASK_PCIEXP_WAKE_DISABLE}, | |
286 | ||
287 | /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, | |
288 | ACPI_BITPOSITION_SCI_ENABLE, | |
289 | ACPI_BITMASK_SCI_ENABLE}, | |
290 | /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL, | |
291 | ACPI_BITPOSITION_BUS_MASTER_RLD, | |
292 | ACPI_BITMASK_BUS_MASTER_RLD}, | |
293 | /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL, | |
294 | ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE, | |
295 | ACPI_BITMASK_GLOBAL_LOCK_RELEASE}, | |
296 | /* ACPI_BITREG_SLEEP_TYPE_A */ {ACPI_REGISTER_PM1_CONTROL, | |
297 | ACPI_BITPOSITION_SLEEP_TYPE_X, | |
298 | ACPI_BITMASK_SLEEP_TYPE_X}, | |
299 | /* ACPI_BITREG_SLEEP_TYPE_B */ {ACPI_REGISTER_PM1_CONTROL, | |
300 | ACPI_BITPOSITION_SLEEP_TYPE_X, | |
301 | ACPI_BITMASK_SLEEP_TYPE_X}, | |
302 | /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, | |
303 | ACPI_BITPOSITION_SLEEP_ENABLE, | |
304 | ACPI_BITMASK_SLEEP_ENABLE}, | |
305 | ||
306 | /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL, | |
307 | ACPI_BITPOSITION_ARB_DISABLE, | |
308 | ACPI_BITMASK_ARB_DISABLE} | |
1da177e4 LT |
309 | }; |
310 | ||
4be44fcd LB |
311 | struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = { |
312 | /* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS, | |
313 | ACPI_BITREG_TIMER_ENABLE, | |
314 | ACPI_BITMASK_TIMER_STATUS, | |
315 | ACPI_BITMASK_TIMER_ENABLE}, | |
316 | /* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS, | |
317 | ACPI_BITREG_GLOBAL_LOCK_ENABLE, | |
318 | ACPI_BITMASK_GLOBAL_LOCK_STATUS, | |
319 | ACPI_BITMASK_GLOBAL_LOCK_ENABLE}, | |
320 | /* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS, | |
321 | ACPI_BITREG_POWER_BUTTON_ENABLE, | |
322 | ACPI_BITMASK_POWER_BUTTON_STATUS, | |
323 | ACPI_BITMASK_POWER_BUTTON_ENABLE}, | |
324 | /* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS, | |
325 | ACPI_BITREG_SLEEP_BUTTON_ENABLE, | |
326 | ACPI_BITMASK_SLEEP_BUTTON_STATUS, | |
327 | ACPI_BITMASK_SLEEP_BUTTON_ENABLE}, | |
328 | /* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS, | |
329 | ACPI_BITREG_RT_CLOCK_ENABLE, | |
330 | ACPI_BITMASK_RT_CLOCK_STATUS, | |
331 | ACPI_BITMASK_RT_CLOCK_ENABLE}, | |
1da177e4 LT |
332 | }; |
333 | ||
44f6c012 | 334 | /******************************************************************************* |
1da177e4 LT |
335 | * |
336 | * FUNCTION: acpi_ut_get_region_name | |
337 | * | |
338 | * PARAMETERS: None. | |
339 | * | |
340 | * RETURN: Status | |
341 | * | |
342 | * DESCRIPTION: Translate a Space ID into a name string (Debug only) | |
343 | * | |
44f6c012 | 344 | ******************************************************************************/ |
1da177e4 LT |
345 | |
346 | /* Region type decoding */ | |
347 | ||
4be44fcd | 348 | const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = { |
1da177e4 LT |
349 | "SystemMemory", |
350 | "SystemIO", | |
351 | "PCI_Config", | |
352 | "EmbeddedControl", | |
353 | "SMBus", | |
34830726 | 354 | "SystemCMOS", |
1da177e4 LT |
355 | "PCIBARTarget", |
356 | "DataTable" | |
1da177e4 LT |
357 | }; |
358 | ||
4be44fcd | 359 | char *acpi_ut_get_region_name(u8 space_id) |
1da177e4 LT |
360 | { |
361 | ||
4be44fcd | 362 | if (space_id >= ACPI_USER_REGION_BEGIN) { |
b229cf92 | 363 | return ("UserDefinedRegion"); |
4be44fcd | 364 | } else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) { |
b229cf92 | 365 | return ("InvalidSpaceId"); |
1da177e4 LT |
366 | } |
367 | ||
defba1d8 | 368 | return (ACPI_CAST_PTR(char, acpi_gbl_region_types[space_id])); |
1da177e4 LT |
369 | } |
370 | ||
44f6c012 | 371 | /******************************************************************************* |
1da177e4 LT |
372 | * |
373 | * FUNCTION: acpi_ut_get_event_name | |
374 | * | |
375 | * PARAMETERS: None. | |
376 | * | |
377 | * RETURN: Status | |
378 | * | |
379 | * DESCRIPTION: Translate a Event ID into a name string (Debug only) | |
380 | * | |
44f6c012 | 381 | ******************************************************************************/ |
1da177e4 LT |
382 | |
383 | /* Event type decoding */ | |
384 | ||
4be44fcd | 385 | static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = { |
1da177e4 | 386 | "PM_Timer", |
0897831b BM |
387 | "GlobalLock", |
388 | "PowerButton", | |
389 | "SleepButton", | |
390 | "RealTimeClock", | |
1da177e4 LT |
391 | }; |
392 | ||
4be44fcd | 393 | char *acpi_ut_get_event_name(u32 event_id) |
1da177e4 LT |
394 | { |
395 | ||
4be44fcd | 396 | if (event_id > ACPI_EVENT_MAX) { |
b229cf92 | 397 | return ("InvalidEventID"); |
1da177e4 LT |
398 | } |
399 | ||
4a90c7e8 | 400 | return (ACPI_CAST_PTR(char, acpi_gbl_event_types[event_id])); |
1da177e4 LT |
401 | } |
402 | ||
44f6c012 | 403 | /******************************************************************************* |
1da177e4 LT |
404 | * |
405 | * FUNCTION: acpi_ut_get_type_name | |
406 | * | |
407 | * PARAMETERS: None. | |
408 | * | |
409 | * RETURN: Status | |
410 | * | |
411 | * DESCRIPTION: Translate a Type ID into a name string (Debug only) | |
412 | * | |
44f6c012 | 413 | ******************************************************************************/ |
1da177e4 LT |
414 | |
415 | /* | |
416 | * Elements of acpi_gbl_ns_type_names below must match | |
417 | * one-to-one with values of acpi_object_type | |
418 | * | |
44f6c012 RM |
419 | * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching; |
420 | * when stored in a table it really means that we have thus far seen no | |
421 | * evidence to indicate what type is actually going to be stored for this entry. | |
1da177e4 | 422 | */ |
4be44fcd | 423 | static const char acpi_gbl_bad_type[] = "UNDEFINED"; |
1da177e4 | 424 | |
44f6c012 RM |
425 | /* Printable names of the ACPI object types */ |
426 | ||
4be44fcd | 427 | static const char *acpi_gbl_ns_type_names[] = { |
1da177e4 LT |
428 | /* 00 */ "Untyped", |
429 | /* 01 */ "Integer", | |
430 | /* 02 */ "String", | |
431 | /* 03 */ "Buffer", | |
432 | /* 04 */ "Package", | |
0897831b | 433 | /* 05 */ "FieldUnit", |
1da177e4 LT |
434 | /* 06 */ "Device", |
435 | /* 07 */ "Event", | |
436 | /* 08 */ "Method", | |
437 | /* 09 */ "Mutex", | |
438 | /* 10 */ "Region", | |
439 | /* 11 */ "Power", | |
440 | /* 12 */ "Processor", | |
441 | /* 13 */ "Thermal", | |
0897831b BM |
442 | /* 14 */ "BufferField", |
443 | /* 15 */ "DdbHandle", | |
444 | /* 16 */ "DebugObject", | |
445 | /* 17 */ "RegionField", | |
446 | /* 18 */ "BankField", | |
447 | /* 19 */ "IndexField", | |
1da177e4 LT |
448 | /* 20 */ "Reference", |
449 | /* 21 */ "Alias", | |
0897831b | 450 | /* 22 */ "MethodAlias", |
1da177e4 | 451 | /* 23 */ "Notify", |
0897831b BM |
452 | /* 24 */ "AddrHandler", |
453 | /* 25 */ "ResourceDesc", | |
454 | /* 26 */ "ResourceFld", | |
1da177e4 LT |
455 | /* 27 */ "Scope", |
456 | /* 28 */ "Extra", | |
457 | /* 29 */ "Data", | |
458 | /* 30 */ "Invalid" | |
459 | }; | |
460 | ||
4be44fcd | 461 | char *acpi_ut_get_type_name(acpi_object_type type) |
1da177e4 LT |
462 | { |
463 | ||
4be44fcd | 464 | if (type > ACPI_TYPE_INVALID) { |
4a90c7e8 | 465 | return (ACPI_CAST_PTR(char, acpi_gbl_bad_type)); |
1da177e4 LT |
466 | } |
467 | ||
4a90c7e8 | 468 | return (ACPI_CAST_PTR(char, acpi_gbl_ns_type_names[type])); |
1da177e4 LT |
469 | } |
470 | ||
4be44fcd | 471 | char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc) |
1da177e4 LT |
472 | { |
473 | ||
4be44fcd | 474 | if (!obj_desc) { |
1da177e4 LT |
475 | return ("[NULL Object Descriptor]"); |
476 | } | |
477 | ||
4be44fcd | 478 | return (acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc))); |
1da177e4 LT |
479 | } |
480 | ||
44f6c012 | 481 | /******************************************************************************* |
1da177e4 LT |
482 | * |
483 | * FUNCTION: acpi_ut_get_node_name | |
484 | * | |
485 | * PARAMETERS: Object - A namespace node | |
486 | * | |
487 | * RETURN: Pointer to a string | |
488 | * | |
489 | * DESCRIPTION: Validate the node and return the node's ACPI name. | |
490 | * | |
44f6c012 | 491 | ******************************************************************************/ |
1da177e4 | 492 | |
4be44fcd | 493 | char *acpi_ut_get_node_name(void *object) |
1da177e4 | 494 | { |
4be44fcd | 495 | struct acpi_namespace_node *node = (struct acpi_namespace_node *)object; |
1da177e4 LT |
496 | |
497 | /* Must return a string of exactly 4 characters == ACPI_NAME_SIZE */ | |
498 | ||
4be44fcd | 499 | if (!object) { |
1da177e4 LT |
500 | return ("NULL"); |
501 | } | |
502 | ||
503 | /* Check for Root node */ | |
504 | ||
4be44fcd | 505 | if ((object == ACPI_ROOT_OBJECT) || (object == acpi_gbl_root_node)) { |
1da177e4 LT |
506 | return ("\"\\\" "); |
507 | } | |
508 | ||
509 | /* Descriptor must be a namespace node */ | |
510 | ||
61686124 | 511 | if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) { |
1da177e4 LT |
512 | return ("####"); |
513 | } | |
514 | ||
515 | /* Name must be a valid ACPI name */ | |
516 | ||
c51a4de8 | 517 | if (!acpi_ut_valid_acpi_name(node->name.integer)) { |
3d81b236 | 518 | node->name.integer = acpi_ut_repair_name(node->name.ascii); |
1da177e4 LT |
519 | } |
520 | ||
521 | /* Return the name */ | |
522 | ||
523 | return (node->name.ascii); | |
524 | } | |
525 | ||
44f6c012 | 526 | /******************************************************************************* |
1da177e4 LT |
527 | * |
528 | * FUNCTION: acpi_ut_get_descriptor_name | |
529 | * | |
530 | * PARAMETERS: Object - An ACPI object | |
531 | * | |
532 | * RETURN: Pointer to a string | |
533 | * | |
534 | * DESCRIPTION: Validate object and return the descriptor type | |
535 | * | |
44f6c012 RM |
536 | ******************************************************************************/ |
537 | ||
538 | /* Printable names of object descriptor types */ | |
1da177e4 | 539 | |
4be44fcd | 540 | static const char *acpi_gbl_desc_type_names[] = { |
1da177e4 LT |
541 | /* 00 */ "Invalid", |
542 | /* 01 */ "Cached", | |
543 | /* 02 */ "State-Generic", | |
544 | /* 03 */ "State-Update", | |
545 | /* 04 */ "State-Package", | |
546 | /* 05 */ "State-Control", | |
0897831b BM |
547 | /* 06 */ "State-RootParseScope", |
548 | /* 07 */ "State-ParseScope", | |
549 | /* 08 */ "State-WalkScope", | |
1da177e4 LT |
550 | /* 09 */ "State-Result", |
551 | /* 10 */ "State-Notify", | |
552 | /* 11 */ "State-Thread", | |
553 | /* 12 */ "Walk", | |
554 | /* 13 */ "Parser", | |
555 | /* 14 */ "Operand", | |
556 | /* 15 */ "Node" | |
557 | }; | |
558 | ||
4be44fcd | 559 | char *acpi_ut_get_descriptor_name(void *object) |
1da177e4 LT |
560 | { |
561 | ||
4be44fcd | 562 | if (!object) { |
1da177e4 LT |
563 | return ("NULL OBJECT"); |
564 | } | |
565 | ||
4be44fcd | 566 | if (ACPI_GET_DESCRIPTOR_TYPE(object) > ACPI_DESC_TYPE_MAX) { |
defba1d8 | 567 | return (ACPI_CAST_PTR(char, acpi_gbl_bad_type)); |
1da177e4 LT |
568 | } |
569 | ||
defba1d8 BM |
570 | return (ACPI_CAST_PTR(char, |
571 | acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE | |
572 | (object)])); | |
1da177e4 LT |
573 | |
574 | } | |
575 | ||
f02a99ac BM |
576 | /******************************************************************************* |
577 | * | |
578 | * FUNCTION: acpi_ut_get_reference_name | |
579 | * | |
580 | * PARAMETERS: Object - An ACPI reference object | |
581 | * | |
582 | * RETURN: Pointer to a string | |
583 | * | |
584 | * DESCRIPTION: Decode a reference object sub-type to a string. | |
585 | * | |
586 | ******************************************************************************/ | |
587 | ||
588 | /* Printable names of reference object sub-types */ | |
589 | ||
1044f1f6 BM |
590 | static const char *acpi_gbl_ref_class_names[] = { |
591 | /* 00 */ "Local", | |
592 | /* 01 */ "Argument", | |
593 | /* 02 */ "RefOf", | |
594 | /* 03 */ "Index", | |
595 | /* 04 */ "DdbHandle", | |
596 | /* 05 */ "Named Object", | |
597 | /* 06 */ "Debug" | |
598 | }; | |
599 | ||
f02a99ac BM |
600 | const char *acpi_ut_get_reference_name(union acpi_operand_object *object) |
601 | { | |
1044f1f6 BM |
602 | if (!object) |
603 | return "NULL Object"; | |
f02a99ac | 604 | |
1044f1f6 BM |
605 | if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND) |
606 | return "Not an Operand object"; | |
f02a99ac | 607 | |
1044f1f6 BM |
608 | if (object->common.type != ACPI_TYPE_LOCAL_REFERENCE) |
609 | return "Not a Reference object"; | |
f02a99ac | 610 | |
1044f1f6 BM |
611 | if (object->reference.class > ACPI_REFCLASS_MAX) |
612 | return "Unknown Reference class"; | |
f02a99ac | 613 | |
1044f1f6 | 614 | return acpi_gbl_ref_class_names[object->reference.class]; |
f02a99ac BM |
615 | } |
616 | ||
1da177e4 LT |
617 | #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) |
618 | /* | |
619 | * Strings and procedures used for debug only | |
620 | */ | |
621 | ||
44f6c012 | 622 | /******************************************************************************* |
1da177e4 LT |
623 | * |
624 | * FUNCTION: acpi_ut_get_mutex_name | |
625 | * | |
44f6c012 | 626 | * PARAMETERS: mutex_id - The predefined ID for this mutex. |
1da177e4 | 627 | * |
44f6c012 RM |
628 | * RETURN: String containing the name of the mutex. Always returns a valid |
629 | * pointer. | |
1da177e4 LT |
630 | * |
631 | * DESCRIPTION: Translate a mutex ID into a name string (Debug only) | |
632 | * | |
44f6c012 | 633 | ******************************************************************************/ |
1da177e4 | 634 | |
4be44fcd | 635 | char *acpi_ut_get_mutex_name(u32 mutex_id) |
1da177e4 LT |
636 | { |
637 | ||
4c90ece2 | 638 | if (mutex_id > ACPI_MAX_MUTEX) { |
1da177e4 LT |
639 | return ("Invalid Mutex ID"); |
640 | } | |
641 | ||
642 | return (acpi_gbl_mutex_names[mutex_id]); | |
643 | } | |
514d18d7 ZR |
644 | |
645 | /******************************************************************************* | |
646 | * | |
647 | * FUNCTION: acpi_ut_get_notify_name | |
648 | * | |
649 | * PARAMETERS: notify_value - Value from the Notify() request | |
650 | * | |
651 | * RETURN: String corresponding to the Notify Value. | |
652 | * | |
653 | * DESCRIPTION: Translate a Notify Value to a notify namestring. | |
654 | * | |
655 | ******************************************************************************/ | |
656 | ||
657 | /* Names for Notify() values, used for debug output */ | |
658 | ||
659 | static const char *acpi_gbl_notify_value_names[] = { | |
660 | "Bus Check", | |
661 | "Device Check", | |
662 | "Device Wake", | |
663 | "Eject Request", | |
664 | "Device Check Light", | |
665 | "Frequency Mismatch", | |
666 | "Bus Mode Mismatch", | |
667 | "Power Fault", | |
668 | "Capabilities Check", | |
669 | "Device PLD Check", | |
670 | "Reserved", | |
671 | "System Locality Update" | |
672 | }; | |
673 | ||
674 | const char *acpi_ut_get_notify_name(u32 notify_value) | |
675 | { | |
676 | ||
677 | if (notify_value <= ACPI_NOTIFY_MAX) { | |
678 | return (acpi_gbl_notify_value_names[notify_value]); | |
679 | } else if (notify_value <= ACPI_MAX_SYS_NOTIFY) { | |
680 | return ("Reserved"); | |
681 | } else { /* Greater or equal to 0x80 */ | |
682 | ||
683 | return ("**Device Specific**"); | |
684 | } | |
685 | } | |
1da177e4 LT |
686 | #endif |
687 | ||
44f6c012 | 688 | /******************************************************************************* |
1da177e4 LT |
689 | * |
690 | * FUNCTION: acpi_ut_valid_object_type | |
691 | * | |
692 | * PARAMETERS: Type - Object type to be validated | |
693 | * | |
44f6c012 | 694 | * RETURN: TRUE if valid object type, FALSE otherwise |
1da177e4 LT |
695 | * |
696 | * DESCRIPTION: Validate an object type | |
697 | * | |
44f6c012 | 698 | ******************************************************************************/ |
1da177e4 | 699 | |
4be44fcd | 700 | u8 acpi_ut_valid_object_type(acpi_object_type type) |
1da177e4 LT |
701 | { |
702 | ||
4be44fcd | 703 | if (type > ACPI_TYPE_LOCAL_MAX) { |
52fc0b02 | 704 | |
1da177e4 LT |
705 | /* Note: Assumes all TYPEs are contiguous (external/local) */ |
706 | ||
707 | return (FALSE); | |
708 | } | |
709 | ||
710 | return (TRUE); | |
711 | } | |
712 | ||
44f6c012 | 713 | /******************************************************************************* |
1da177e4 LT |
714 | * |
715 | * FUNCTION: acpi_ut_init_globals | |
716 | * | |
44f6c012 RM |
717 | * PARAMETERS: None |
718 | * | |
b417d40b | 719 | * RETURN: Status |
1da177e4 LT |
720 | * |
721 | * DESCRIPTION: Init library globals. All globals that require specific | |
722 | * initialization should be initialized here! | |
723 | * | |
44f6c012 | 724 | ******************************************************************************/ |
1da177e4 | 725 | |
b417d40b | 726 | acpi_status acpi_ut_init_globals(void) |
1da177e4 | 727 | { |
4be44fcd LB |
728 | acpi_status status; |
729 | u32 i; | |
1da177e4 | 730 | |
b229cf92 | 731 | ACPI_FUNCTION_TRACE(ut_init_globals); |
1da177e4 | 732 | |
73459f73 RM |
733 | /* Create all memory caches */ |
734 | ||
4be44fcd LB |
735 | status = acpi_ut_create_caches(); |
736 | if (ACPI_FAILURE(status)) { | |
b417d40b | 737 | return_ACPI_STATUS(status); |
73459f73 | 738 | } |
1da177e4 | 739 | |
1da177e4 LT |
740 | /* Mutex locked flags */ |
741 | ||
4c90ece2 | 742 | for (i = 0; i < ACPI_NUM_MUTEX; i++) { |
4be44fcd LB |
743 | acpi_gbl_mutex_info[i].mutex = NULL; |
744 | acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED; | |
745 | acpi_gbl_mutex_info[i].use_count = 0; | |
1da177e4 LT |
746 | } |
747 | ||
28f55ebc BM |
748 | for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) { |
749 | acpi_gbl_owner_id_mask[i] = 0; | |
750 | } | |
751 | acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; /* Last ID is never valid */ | |
752 | ||
1da177e4 LT |
753 | /* GPE support */ |
754 | ||
4be44fcd LB |
755 | acpi_gbl_gpe_xrupt_list_head = NULL; |
756 | acpi_gbl_gpe_fadt_blocks[0] = NULL; | |
757 | acpi_gbl_gpe_fadt_blocks[1] = NULL; | |
e97d6bf1 | 758 | acpi_current_gpe_count = 0; |
1da177e4 | 759 | |
3e08e2d2 | 760 | /* Global handlers */ |
1da177e4 | 761 | |
4be44fcd LB |
762 | acpi_gbl_system_notify.handler = NULL; |
763 | acpi_gbl_device_notify.handler = NULL; | |
764 | acpi_gbl_exception_handler = NULL; | |
765 | acpi_gbl_init_handler = NULL; | |
3e08e2d2 | 766 | acpi_gbl_table_handler = NULL; |
1da177e4 | 767 | |
1da177e4 LT |
768 | /* Global Lock support */ |
769 | ||
967440e3 | 770 | acpi_gbl_global_lock_semaphore = NULL; |
c81da666 | 771 | acpi_gbl_global_lock_mutex = NULL; |
4be44fcd | 772 | acpi_gbl_global_lock_acquired = FALSE; |
4be44fcd | 773 | acpi_gbl_global_lock_handle = 0; |
009c4cbe | 774 | acpi_gbl_global_lock_present = FALSE; |
1da177e4 LT |
775 | |
776 | /* Miscellaneous variables */ | |
777 | ||
4be44fcd LB |
778 | acpi_gbl_cm_single_step = FALSE; |
779 | acpi_gbl_db_terminate_threads = FALSE; | |
780 | acpi_gbl_shutdown = FALSE; | |
781 | acpi_gbl_ns_lookup_count = 0; | |
782 | acpi_gbl_ps_find_count = 0; | |
783 | acpi_gbl_acpi_hardware_present = TRUE; | |
28f55ebc BM |
784 | acpi_gbl_last_owner_id_index = 0; |
785 | acpi_gbl_next_owner_id_offset = 0; | |
50eca3eb BM |
786 | acpi_gbl_trace_method_name = 0; |
787 | acpi_gbl_trace_dbg_level = 0; | |
788 | acpi_gbl_trace_dbg_layer = 0; | |
4be44fcd LB |
789 | acpi_gbl_debugger_configuration = DEBUGGER_THREADING; |
790 | acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT; | |
1da177e4 LT |
791 | |
792 | /* Hardware oriented */ | |
793 | ||
4be44fcd LB |
794 | acpi_gbl_events_initialized = FALSE; |
795 | acpi_gbl_system_awake_and_running = TRUE; | |
1da177e4 LT |
796 | |
797 | /* Namespace */ | |
798 | ||
4be44fcd | 799 | acpi_gbl_root_node = NULL; |
1da177e4 | 800 | acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME; |
61686124 | 801 | acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED; |
4be44fcd LB |
802 | acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE; |
803 | acpi_gbl_root_node_struct.child = NULL; | |
804 | acpi_gbl_root_node_struct.peer = NULL; | |
805 | acpi_gbl_root_node_struct.object = NULL; | |
806 | acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST; | |
1da177e4 LT |
807 | |
808 | #ifdef ACPI_DEBUG_OUTPUT | |
1d18c058 | 809 | acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX); |
1da177e4 LT |
810 | #endif |
811 | ||
d41eb99b BM |
812 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS |
813 | acpi_gbl_display_final_mem_stats = FALSE; | |
814 | #endif | |
815 | ||
b417d40b | 816 | return_ACPI_STATUS(AE_OK); |
1da177e4 | 817 | } |
8313524a | 818 | |
e97d6bf1 | 819 | ACPI_EXPORT_SYMBOL(acpi_gbl_FADT) |
8313524a | 820 | ACPI_EXPORT_SYMBOL(acpi_dbg_level) |
1044f1f6 | 821 | ACPI_EXPORT_SYMBOL(acpi_dbg_layer) |
e97d6bf1 | 822 | ACPI_EXPORT_SYMBOL(acpi_current_gpe_count) |