| 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 <acpi/accommon.h> |
| 48 | #include <acpi/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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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) |