include/acpi/acutils.h

   1 /******************************************************************************
   2  *
   3  * Name: acutils.h -- prototypes for the common (subsystem-wide) procedures
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2005, R. Byron Moore
   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 #ifndef _ACUTILS_H
  45 #define _ACUTILS_H
  46
  47
  48 typedef
  49 acpi_status (*acpi_pkg_callback) (
  50         u8                              object_type,
  51         union acpi_operand_object       *source_object,
  52         union acpi_generic_state        *state,
  53         void                            *context);
  54
  55 struct acpi_pkg_info
  56 {
  57         u8                              *free_space;
  58         acpi_size                       length;
  59         u32                             object_space;
  60         u32                             num_packages;
  61 };
  62
  63 #define REF_INCREMENT       (u16) 0
  64 #define REF_DECREMENT       (u16) 1
  65 #define REF_FORCE_DELETE    (u16) 2
  66
  67 /* acpi_ut_dump_buffer */
  68
  69 #define DB_BYTE_DISPLAY     1
  70 #define DB_WORD_DISPLAY     2
  71 #define DB_DWORD_DISPLAY    4
  72 #define DB_QWORD_DISPLAY    8
  73
  74
  75 /*
  76  * utglobal - Global data structures and procedures
  77  */
  78 void
  79 acpi_ut_init_globals (
  80         void);
  81
  82 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
  83
  84 char *
  85 acpi_ut_get_mutex_name (
  86         u32                             mutex_id);
  87
  88 #endif
  89
  90 char *
  91 acpi_ut_get_type_name (
  92         acpi_object_type                type);
  93
  94 char *
  95 acpi_ut_get_node_name (
  96         void                            *object);
  97
  98 char *
  99 acpi_ut_get_descriptor_name (
 100         void                            *object);
 101
 102 char *
 103 acpi_ut_get_object_type_name (
 104         union acpi_operand_object       *obj_desc);
 105
 106 char *
 107 acpi_ut_get_region_name (
 108         u8                              space_id);
 109
 110 char *
 111 acpi_ut_get_event_name (
 112         u32                             event_id);
 113
 114 char
 115 acpi_ut_hex_to_ascii_char (
 116         acpi_integer                    integer,
 117         u32                             position);
 118
 119 u8
 120 acpi_ut_valid_object_type (
 121         acpi_object_type                type);
 122
 123 acpi_owner_id
 124 acpi_ut_allocate_owner_id (
 125         u32                             id_type);
 126
 127
 128 /*
 129  * utinit - miscellaneous initialization and shutdown
 130  */
 131 acpi_status
 132 acpi_ut_hardware_initialize (
 133         void);
 134
 135 void
 136 acpi_ut_subsystem_shutdown (
 137         void);
 138
 139 acpi_status
 140 acpi_ut_validate_fadt (
 141         void);
 142
 143
 144 /*
 145  * utclib - Local implementations of C library functions
 146  */
 147 #ifndef ACPI_USE_SYSTEM_CLIBRARY
 148
 149 acpi_size
 150 acpi_ut_strlen (
 151         const char                      *string);
 152
 153 char *
 154 acpi_ut_strcpy (
 155         char                            *dst_string,
 156         const char                      *src_string);
 157
 158 char *
 159 acpi_ut_strncpy (
 160         char                            *dst_string,
 161         const char                      *src_string,
 162         acpi_size                       count);
 163
 164 int
 165 acpi_ut_memcmp (
 166         const char                      *buffer1,
 167         const char                      *buffer2,
 168         acpi_size                       count);
 169
 170 int
 171 acpi_ut_strncmp (
 172         const char                      *string1,
 173         const char                      *string2,
 174         acpi_size                       count);
 175
 176 int
 177 acpi_ut_strcmp (
 178         const char                      *string1,
 179         const char                      *string2);
 180
 181 char *
 182 acpi_ut_strcat (
 183         char                            *dst_string,
 184         const char                      *src_string);
 185
 186 char *
 187 acpi_ut_strncat (
 188         char                            *dst_string,
 189         const char                      *src_string,
 190         acpi_size                       count);
 191
 192 u32
 193 acpi_ut_strtoul (
 194         const char                      *string,
 195         char                            **terminator,
 196         u32                             base);
 197
 198 char *
 199 acpi_ut_strstr (
 200         char                            *string1,
 201         char                            *string2);
 202
 203 void *
 204 acpi_ut_memcpy (
 205         void                            *dest,
 206         const void                      *src,
 207         acpi_size                       count);
 208
 209 void *
 210 acpi_ut_memset (
 211         void                            *dest,
 212         acpi_native_uint                value,
 213         acpi_size                       count);
 214
 215 int
 216 acpi_ut_to_upper (
 217         int                             c);
 218
 219 int
 220 acpi_ut_to_lower (
 221         int                             c);
 222
 223 extern const u8 _acpi_ctype[];
 224
 225 #define _ACPI_XA     0x00    /* extra alphabetic - not supported */
 226 #define _ACPI_XS     0x40    /* extra space */
 227 #define _ACPI_BB     0x00    /* BEL, BS, etc. - not supported */
 228 #define _ACPI_CN     0x20    /* CR, FF, HT, NL, VT */
 229 #define _ACPI_DI     0x04    /* '0'-'9' */
 230 #define _ACPI_LO     0x02    /* 'a'-'z' */
 231 #define _ACPI_PU     0x10    /* punctuation */
 232 #define _ACPI_SP     0x08    /* space */
 233 #define _ACPI_UP     0x01    /* 'A'-'Z' */
 234 #define _ACPI_XD     0x80    /* '0'-'9', 'A'-'F', 'a'-'f' */
 235
 236 #define ACPI_IS_DIGIT(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_DI))
 237 #define ACPI_IS_SPACE(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_SP))
 238 #define ACPI_IS_XDIGIT(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_XD))
 239 #define ACPI_IS_UPPER(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_UP))
 240 #define ACPI_IS_LOWER(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO))
 241 #define ACPI_IS_PRINT(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO | _ACPI_UP | _ACPI_DI | _ACPI_SP | _ACPI_PU))
 242 #define ACPI_IS_ALPHA(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO | _ACPI_UP))
 243 #define ACPI_IS_ASCII(c)  ((c) < 0x80)
 244
 245 #endif /* ACPI_USE_SYSTEM_CLIBRARY */
 246
 247
 248 /*
 249  * utcopy - Object construction and conversion interfaces
 250  */
 251 acpi_status
 252 acpi_ut_build_simple_object(
 253         union acpi_operand_object       *obj,
 254         union acpi_object               *user_obj,
 255         u8                              *data_space,
 256         u32                             *buffer_space_used);
 257
 258 acpi_status
 259 acpi_ut_build_package_object (
 260         union acpi_operand_object       *obj,
 261         u8                              *buffer,
 262         u32                             *space_used);
 263
 264 acpi_status
 265 acpi_ut_copy_iobject_to_eobject (
 266         union acpi_operand_object       *obj,
 267         struct acpi_buffer              *ret_buffer);
 268
 269 acpi_status
 270 acpi_ut_copy_eobject_to_iobject (
 271         union acpi_object               *obj,
 272         union acpi_operand_object       **internal_obj);
 273
 274 acpi_status
 275 acpi_ut_copy_isimple_to_isimple (
 276         union acpi_operand_object       *source_obj,
 277         union acpi_operand_object       *dest_obj);
 278
 279 acpi_status
 280 acpi_ut_copy_iobject_to_iobject (
 281         union acpi_operand_object       *source_desc,
 282         union acpi_operand_object       **dest_desc,
 283         struct acpi_walk_state          *walk_state);
 284
 285
 286 /*
 287  * utcreate - Object creation
 288  */
 289 acpi_status
 290 acpi_ut_update_object_reference (
 291         union acpi_operand_object       *object,
 292         u16                             action);
 293
 294
 295 /*
 296  * utdebug - Debug interfaces
 297  */
 298 void
 299 acpi_ut_init_stack_ptr_trace (
 300         void);
 301
 302 void
 303 acpi_ut_track_stack_ptr (
 304         void);
 305
 306 void
 307 acpi_ut_trace (
 308         u32                             line_number,
 309         struct acpi_debug_print_info    *dbg_info);
 310
 311 void
 312 acpi_ut_trace_ptr (
 313         u32                             line_number,
 314         struct acpi_debug_print_info    *dbg_info,
 315         void                            *pointer);
 316
 317 void
 318 acpi_ut_trace_u32 (
 319         u32                             line_number,
 320         struct acpi_debug_print_info    *dbg_info,
 321         u32                             integer);
 322
 323 void
 324 acpi_ut_trace_str (
 325         u32                             line_number,
 326         struct acpi_debug_print_info    *dbg_info,
 327         char                            *string);
 328
 329 void
 330 acpi_ut_exit (
 331         u32                             line_number,
 332         struct acpi_debug_print_info    *dbg_info);
 333
 334 void
 335 acpi_ut_status_exit (
 336         u32                             line_number,
 337         struct acpi_debug_print_info    *dbg_info,
 338         acpi_status                     status);
 339
 340 void
 341 acpi_ut_value_exit (
 342         u32                             line_number,
 343         struct acpi_debug_print_info    *dbg_info,
 344         acpi_integer                    value);
 345
 346 void
 347 acpi_ut_ptr_exit (
 348         u32                             line_number,
 349         struct acpi_debug_print_info    *dbg_info,
 350         u8                              *ptr);
 351
 352 void
 353 acpi_ut_report_info (
 354         char                            *module_name,
 355         u32                             line_number,
 356         u32                             component_id);
 357
 358 void
 359 acpi_ut_report_error (
 360         char                            *module_name,
 361         u32                             line_number,
 362         u32                             component_id);
 363
 364 void
 365 acpi_ut_report_warning (
 366         char                            *module_name,
 367         u32                             line_number,
 368         u32                             component_id);
 369
 370 void
 371 acpi_ut_dump_buffer (
 372         u8                              *buffer,
 373         u32                             count,
 374         u32                             display,
 375         u32                             component_id);
 376
 377 void ACPI_INTERNAL_VAR_XFACE
 378 acpi_ut_debug_print (
 379         u32                             requested_debug_level,
 380         u32                             line_number,
 381         struct acpi_debug_print_info    *dbg_info,
 382         char                            *format,
 383         ...) ACPI_PRINTF_LIKE_FUNC;
 384
 385 void ACPI_INTERNAL_VAR_XFACE
 386 acpi_ut_debug_print_raw (
 387         u32                             requested_debug_level,
 388         u32                             line_number,
 389         struct acpi_debug_print_info    *dbg_info,
 390         char                            *format,
 391         ...) ACPI_PRINTF_LIKE_FUNC;
 392
 393
 394 /*
 395  * utdelete - Object deletion and reference counts
 396  */
 397 void
 398 acpi_ut_add_reference (
 399         union acpi_operand_object       *object);
 400
 401 void
 402 acpi_ut_remove_reference (
 403         union acpi_operand_object       *object);
 404
 405 void
 406 acpi_ut_delete_internal_package_object (
 407         union acpi_operand_object       *object);
 408
 409 void
 410 acpi_ut_delete_internal_simple_object (
 411         union acpi_operand_object       *object);
 412
 413 void
 414 acpi_ut_delete_internal_object_list (
 415         union acpi_operand_object       **obj_list);
 416
 417
 418 /*
 419  * uteval - object evaluation
 420  */
 421 acpi_status
 422 acpi_ut_osi_implementation (
 423         struct acpi_walk_state          *walk_state);
 424
 425 acpi_status
 426 acpi_ut_evaluate_object (
 427         struct acpi_namespace_node      *prefix_node,
 428         char                            *path,
 429         u32                             expected_return_btypes,
 430         union acpi_operand_object       **return_desc);
 431
 432 acpi_status
 433 acpi_ut_evaluate_numeric_object (
 434         char                            *object_name,
 435         struct acpi_namespace_node      *device_node,
 436         acpi_integer                    *address);
 437
 438 acpi_status
 439 acpi_ut_execute_HID (
 440         struct acpi_namespace_node      *device_node,
 441         struct acpi_device_id           *hid);
 442
 443 acpi_status
 444 acpi_ut_execute_CID (
 445         struct acpi_namespace_node      *device_node,
 446         struct acpi_compatible_id_list **return_cid_list);
 447
 448 acpi_status
 449 acpi_ut_execute_STA (
 450         struct acpi_namespace_node      *device_node,
 451         u32                             *status_flags);
 452
 453 acpi_status
 454 acpi_ut_execute_UID (
 455         struct acpi_namespace_node      *device_node,
 456         struct acpi_device_id           *uid);
 457
 458 acpi_status
 459 acpi_ut_execute_sxds (
 460         struct acpi_namespace_node      *device_node,
 461         u8                              *highest);
 462
 463
 464 /*
 465  * utobject - internal object create/delete/cache routines
 466  */
 467 union acpi_operand_object    *
 468 acpi_ut_create_internal_object_dbg (
 469         char                            *module_name,
 470         u32                             line_number,
 471         u32                             component_id,
 472         acpi_object_type                type);
 473
 474 void *
 475 acpi_ut_allocate_object_desc_dbg (
 476         char                            *module_name,
 477         u32                             line_number,
 478         u32                             component_id);
 479
 480 #define acpi_ut_create_internal_object(t) acpi_ut_create_internal_object_dbg (_THIS_MODULE,__LINE__,_COMPONENT,t)
 481 #define acpi_ut_allocate_object_desc()  acpi_ut_allocate_object_desc_dbg (_THIS_MODULE,__LINE__,_COMPONENT)
 482
 483 void
 484 acpi_ut_delete_object_desc (
 485         union acpi_operand_object       *object);
 486
 487 u8
 488 acpi_ut_valid_internal_object (
 489         void                            *object);
 490
 491 union acpi_operand_object *
 492 acpi_ut_create_buffer_object (
 493         acpi_size                       buffer_size);
 494
 495 union acpi_operand_object *
 496 acpi_ut_create_string_object (
 497         acpi_size                       string_size);
 498
 499 acpi_status
 500 acpi_ut_get_object_size(
 501         union acpi_operand_object       *obj,
 502         acpi_size                       *obj_length);
 503
 504
 505 /*
 506  * utstate - Generic state creation/cache routines
 507  */
 508 void
 509 acpi_ut_push_generic_state (
 510         union acpi_generic_state        **list_head,
 511         union acpi_generic_state        *state);
 512
 513 union acpi_generic_state *
 514 acpi_ut_pop_generic_state (
 515         union acpi_generic_state        **list_head);
 516
 517
 518 union acpi_generic_state *
 519 acpi_ut_create_generic_state (
 520         void);
 521
 522 struct acpi_thread_state *
 523 acpi_ut_create_thread_state (
 524         void);
 525
 526 union acpi_generic_state *
 527 acpi_ut_create_update_state (
 528         union acpi_operand_object       *object,
 529         u16                             action);
 530
 531 union acpi_generic_state *
 532 acpi_ut_create_pkg_state (
 533         void                            *internal_object,
 534         void                            *external_object,
 535         u16                             index);
 536
 537 acpi_status
 538 acpi_ut_create_update_state_and_push (
 539         union acpi_operand_object       *object,
 540         u16                             action,
 541         union acpi_generic_state        **state_list);
 542
 543 #ifdef  ACPI_FUTURE_USAGE
 544 acpi_status
 545 acpi_ut_create_pkg_state_and_push (
 546         void                            *internal_object,
 547         void                            *external_object,
 548         u16                             index,
 549         union acpi_generic_state        **state_list);
 550 #endif  /* ACPI_FUTURE_USAGE */
 551
 552 union acpi_generic_state *
 553 acpi_ut_create_control_state (
 554         void);
 555
 556 void
 557 acpi_ut_delete_generic_state (
 558         union acpi_generic_state        *state);
 559
 560 #ifdef ACPI_ENABLE_OBJECT_CACHE
 561 void
 562 acpi_ut_delete_generic_state_cache (
 563         void);
 564
 565 void
 566 acpi_ut_delete_object_cache (
 567         void);
 568 #endif
 569
 570
 571 /*
 572  * utmath
 573  */
 574 acpi_status
 575 acpi_ut_divide (
 576         acpi_integer                    in_dividend,
 577         acpi_integer                    in_divisor,
 578         acpi_integer                    *out_quotient,
 579         acpi_integer                    *out_remainder);
 580
 581 acpi_status
 582 acpi_ut_short_divide (
 583         acpi_integer                    in_dividend,
 584         u32                             divisor,
 585         acpi_integer                    *out_quotient,
 586         u32                             *out_remainder);
 587
 588 /*
 589  * utmisc
 590  */
 591 acpi_status
 592 acpi_ut_walk_package_tree (
 593         union acpi_operand_object       *source_object,
 594         void                            *target_object,
 595         acpi_pkg_callback               walk_callback,
 596         void                            *context);
 597
 598 char *
 599 acpi_ut_strupr (
 600         char                            *src_string);
 601
 602 void
 603 acpi_ut_print_string (
 604         char                            *string,
 605         u8                              max_length);
 606
 607 u8
 608 acpi_ut_valid_acpi_name (
 609         u32                             name);
 610
 611 u8
 612 acpi_ut_valid_acpi_character (
 613         char                            character);
 614
 615 acpi_status
 616 acpi_ut_strtoul64 (
 617         char                            *string,
 618         u32                             base,
 619         acpi_integer                    *ret_integer);
 620
 621 /* Values for Base above (16=Hex, 10=Decimal) */
 622
 623 #define ACPI_ANY_BASE        0
 624
 625 acpi_status
 626 acpi_ut_mutex_initialize (
 627         void);
 628
 629 void
 630 acpi_ut_mutex_terminate (
 631         void);
 632
 633 acpi_status
 634 acpi_ut_acquire_mutex (
 635         acpi_mutex_handle               mutex_id);
 636
 637 acpi_status
 638 acpi_ut_release_mutex (
 639         acpi_mutex_handle               mutex_id);
 640
 641 u8 *
 642 acpi_ut_get_resource_end_tag (
 643         union acpi_operand_object       *obj_desc);
 644
 645 u8
 646 acpi_ut_generate_checksum (
 647         u8                              *buffer,
 648         u32                             length);
 649
 650 u32
 651 acpi_ut_dword_byte_swap (
 652         u32                             value);
 653
 654 void
 655 acpi_ut_set_integer_width (
 656         u8                              revision);
 657
 658 #ifdef ACPI_DEBUG_OUTPUT
 659 void
 660 acpi_ut_display_init_pathname (
 661         u8                              type,
 662         struct acpi_namespace_node      *obj_handle,
 663         char                            *path);
 664
 665 #endif
 666
 667
 668 /*
 669  * utalloc - memory allocation and object caching
 670  */
 671 void *
 672 acpi_ut_acquire_from_cache (
 673         u32                             list_id);
 674
 675 void
 676 acpi_ut_release_to_cache (
 677         u32                             list_id,
 678         void                            *object);
 679
 680 #ifdef ACPI_ENABLE_OBJECT_CACHE
 681 void
 682 acpi_ut_delete_generic_cache (
 683         u32                             list_id);
 684 #endif
 685
 686 acpi_status
 687 acpi_ut_validate_buffer (
 688         struct acpi_buffer              *buffer);
 689
 690 acpi_status
 691 acpi_ut_initialize_buffer (
 692         struct acpi_buffer              *buffer,
 693         acpi_size                       required_length);
 694
 695 void *
 696 acpi_ut_allocate (
 697         acpi_size                       size,
 698         u32                             component,
 699         char                            *module,
 700         u32                             line);
 701
 702 void *
 703 acpi_ut_callocate (
 704         acpi_size                       size,
 705         u32                             component,
 706         char                            *module,
 707         u32                             line);
 708
 709 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
 710 void *
 711 acpi_ut_allocate_and_track (
 712         acpi_size                       size,
 713         u32                             component,
 714         char                            *module,
 715         u32                             line);
 716
 717 void *
 718 acpi_ut_callocate_and_track (
 719         acpi_size                       size,
 720         u32                             component,
 721         char                            *module,
 722         u32                             line);
 723
 724 void
 725 acpi_ut_free_and_track (
 726         void                            *address,
 727         u32                             component,
 728         char                            *module,
 729         u32                             line);
 730
 731 #ifdef  ACPI_FUTURE_USAGE
 732 void
 733 acpi_ut_dump_allocation_info (
 734         void);
 735 #endif  /* ACPI_FUTURE_USAGE */
 736
 737 void
 738 acpi_ut_dump_allocations (
 739         u32                             component,
 740         char                            *module);
 741 #endif
 742
 743 #endif /* _ACUTILS_H */