osunixxf.c revision 212700
1687Sjoehw/****************************************************************************** 2687Sjoehw * 3687Sjoehw * Module Name: osunixxf - UNIX OSL interfaces 4687Sjoehw * 5687Sjoehw *****************************************************************************/ 6687Sjoehw 7687Sjoehw/****************************************************************************** 8687Sjoehw * 9687Sjoehw * 1. Copyright Notice 10687Sjoehw * 11687Sjoehw * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp. 12687Sjoehw * All rights reserved. 13687Sjoehw * 14687Sjoehw * 2. License 15687Sjoehw * 16687Sjoehw * 2.1. This is your license from Intel Corp. under its intellectual property 17687Sjoehw * rights. You may have additional license terms from the party that provided 18687Sjoehw * you this software, covering your right to use that party's intellectual 19687Sjoehw * property rights. 20687Sjoehw * 21687Sjoehw * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22687Sjoehw * copy of the source code appearing in this file ("Covered Code") an 23687Sjoehw * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24687Sjoehw * base code distributed originally by Intel ("Original Intel Code") to copy, 25687Sjoehw * make derivatives, distribute, use and display any portion of the Covered 26687Sjoehw * Code in any form, with the right to sublicense such rights; and 27687Sjoehw * 28687Sjoehw * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29687Sjoehw * license (with the right to sublicense), under only those claims of Intel 30687Sjoehw * patents that are infringed by the Original Intel Code, to make, use, sell, 31687Sjoehw * offer to sell, and import the Covered Code and derivative works thereof 32687Sjoehw * solely to the minimum extent necessary to exercise the above copyright 33687Sjoehw * license, and in no event shall the patent license extend to any additions 34687Sjoehw * to or modifications of the Original Intel Code. No other license or right 35687Sjoehw * is granted directly or by implication, estoppel or otherwise; 36687Sjoehw * 37687Sjoehw * The above copyright and patent license is granted only if the following 38687Sjoehw * conditions are met: 39687Sjoehw * 40687Sjoehw * 3. Conditions 41687Sjoehw * 42687Sjoehw * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43687Sjoehw * Redistribution of source code of any substantial portion of the Covered 44687Sjoehw * Code or modification with rights to further distribute source must include 45687Sjoehw * the above Copyright Notice, the above License, this list of Conditions, 46687Sjoehw * and the following Disclaimer and Export Compliance provision. In addition, 47687Sjoehw * Licensee must cause all Covered Code to which Licensee contributes to 48687Sjoehw * contain a file documenting the changes Licensee made to create that Covered 49687Sjoehw * Code and the date of any change. Licensee must include in that file the 50687Sjoehw * documentation of any changes made by any predecessor Licensee. Licensee 51687Sjoehw * must include a prominent statement that the modification is derived, 52687Sjoehw * directly or indirectly, from Original Intel Code. 53687Sjoehw * 54687Sjoehw * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55687Sjoehw * Redistribution of source code of any substantial portion of the Covered 56687Sjoehw * Code or modification without rights to further distribute source must 57687Sjoehw * include the following Disclaimer and Export Compliance provision in the 58687Sjoehw * documentation and/or other materials provided with distribution. In 59687Sjoehw * addition, Licensee may not authorize further sublicense of source of any 60687Sjoehw * portion of the Covered Code, and must include terms to the effect that the 61687Sjoehw * license from Licensee to its licensee is limited to the intellectual 62687Sjoehw * property embodied in the software Licensee provides to its licensee, and 63687Sjoehw * not to intellectual property embodied in modifications its licensee may 64687Sjoehw * make. 65687Sjoehw * 66687Sjoehw * 3.3. Redistribution of Executable. Redistribution in executable form of any 67687Sjoehw * substantial portion of the Covered Code or modification must reproduce the 68687Sjoehw * above Copyright Notice, and the following Disclaimer and Export Compliance 69687Sjoehw * provision in the documentation and/or other materials provided with the 70687Sjoehw * distribution. 71687Sjoehw * 72687Sjoehw * 3.4. Intel retains all right, title, and interest in and to the Original 73687Sjoehw * Intel Code. 74687Sjoehw * 75687Sjoehw * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76687Sjoehw * Intel shall be used in advertising or otherwise to promote the sale, use or 77687Sjoehw * other dealings in products derived from or relating to the Covered Code 78687Sjoehw * without prior written authorization from Intel. 79687Sjoehw * 80687Sjoehw * 4. Disclaimer and Export Compliance 81687Sjoehw * 82687Sjoehw * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83687Sjoehw * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84687Sjoehw * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85687Sjoehw * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86687Sjoehw * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87687Sjoehw * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88687Sjoehw * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 *****************************************************************************/ 115 116 117/* 118 * These interfaces are required in order to compile the ASL compiler under 119 * Linux or other Unix-like system. 120 * 121 * Note: Use #define __APPLE__ for OS X generation. 122 */ 123 124#include <stdio.h> 125#include <stdlib.h> 126#include <stdarg.h> 127#include <unistd.h> 128#include <sys/time.h> 129#include <semaphore.h> 130#include <pthread.h> 131#include <errno.h> 132 133#include "acpi.h" 134#include "accommon.h" 135#include "amlcode.h" 136#include "acparser.h" 137#include "acdebug.h" 138 139#define _COMPONENT ACPI_OS_SERVICES 140 ACPI_MODULE_NAME ("osunixxf") 141 142 143extern FILE *AcpiGbl_DebugFile; 144FILE *AcpiGbl_OutputFile; 145 146 147/* Upcalls to AcpiExec */ 148 149ACPI_PHYSICAL_ADDRESS 150AeLocalGetRootPointer ( 151 void); 152 153void 154AeTableOverride ( 155 ACPI_TABLE_HEADER *ExistingTable, 156 ACPI_TABLE_HEADER **NewTable); 157 158typedef void* (*PTHREAD_CALLBACK) (void *); 159 160 161/****************************************************************************** 162 * 163 * FUNCTION: AcpiOsInitialize, AcpiOsTerminate 164 * 165 * PARAMETERS: None 166 * 167 * RETURN: Status 168 * 169 * DESCRIPTION: Init and terminate. Nothing to do. 170 * 171 *****************************************************************************/ 172 173ACPI_STATUS 174AcpiOsInitialize (void) 175{ 176 177 AcpiGbl_OutputFile = stdout; 178 return (AE_OK); 179} 180 181 182ACPI_STATUS 183AcpiOsTerminate (void) 184{ 185 186 return (AE_OK); 187} 188 189 190/****************************************************************************** 191 * 192 * FUNCTION: AcpiOsGetRootPointer 193 * 194 * PARAMETERS: None 195 * 196 * RETURN: RSDP physical address 197 * 198 * DESCRIPTION: Gets the root pointer (RSDP) 199 * 200 *****************************************************************************/ 201 202ACPI_PHYSICAL_ADDRESS 203AcpiOsGetRootPointer ( 204 void) 205{ 206 207 return (AeLocalGetRootPointer ()); 208} 209 210 211/****************************************************************************** 212 * 213 * FUNCTION: AcpiOsPredefinedOverride 214 * 215 * PARAMETERS: InitVal - Initial value of the predefined object 216 * NewVal - The new value for the object 217 * 218 * RETURN: Status, pointer to value. Null pointer returned if not 219 * overriding. 220 * 221 * DESCRIPTION: Allow the OS to override predefined names 222 * 223 *****************************************************************************/ 224 225ACPI_STATUS 226AcpiOsPredefinedOverride ( 227 const ACPI_PREDEFINED_NAMES *InitVal, 228 ACPI_STRING *NewVal) 229{ 230 231 if (!InitVal || !NewVal) 232 { 233 return (AE_BAD_PARAMETER); 234 } 235 236 *NewVal = NULL; 237 return (AE_OK); 238} 239 240 241/****************************************************************************** 242 * 243 * FUNCTION: AcpiOsTableOverride 244 * 245 * PARAMETERS: ExistingTable - Header of current table (probably firmware) 246 * NewTable - Where an entire new table is returned. 247 * 248 * RETURN: Status, pointer to new table. Null pointer returned if no 249 * table is available to override 250 * 251 * DESCRIPTION: Return a different version of a table if one is available 252 * 253 *****************************************************************************/ 254 255ACPI_STATUS 256AcpiOsTableOverride ( 257 ACPI_TABLE_HEADER *ExistingTable, 258 ACPI_TABLE_HEADER **NewTable) 259{ 260 261 if (!ExistingTable || !NewTable) 262 { 263 return (AE_BAD_PARAMETER); 264 } 265 266 *NewTable = NULL; 267 268#ifdef ACPI_EXEC_APP 269 270 AeTableOverride (ExistingTable, NewTable); 271 return (AE_OK); 272#else 273 274 return (AE_NO_ACPI_TABLES); 275#endif 276} 277 278 279/****************************************************************************** 280 * 281 * FUNCTION: AcpiOsRedirectOutput 282 * 283 * PARAMETERS: Destination - An open file handle/pointer 284 * 285 * RETURN: None 286 * 287 * DESCRIPTION: Causes redirect of AcpiOsPrintf and AcpiOsVprintf 288 * 289 *****************************************************************************/ 290 291void 292AcpiOsRedirectOutput ( 293 void *Destination) 294{ 295 296 AcpiGbl_OutputFile = Destination; 297} 298 299 300/****************************************************************************** 301 * 302 * FUNCTION: AcpiOsPrintf 303 * 304 * PARAMETERS: fmt, ... Standard printf format 305 * 306 * RETURN: None 307 * 308 * DESCRIPTION: Formatted output 309 * 310 *****************************************************************************/ 311 312void ACPI_INTERNAL_VAR_XFACE 313AcpiOsPrintf ( 314 const char *Fmt, 315 ...) 316{ 317 va_list Args; 318 319 320 va_start (Args, Fmt); 321 AcpiOsVprintf (Fmt, Args); 322 va_end (Args); 323} 324 325 326/****************************************************************************** 327 * 328 * FUNCTION: AcpiOsVprintf 329 * 330 * PARAMETERS: fmt Standard printf format 331 * args Argument list 332 * 333 * RETURN: None 334 * 335 * DESCRIPTION: Formatted output with argument list pointer 336 * 337 *****************************************************************************/ 338 339void 340AcpiOsVprintf ( 341 const char *Fmt, 342 va_list Args) 343{ 344 INT32 Count = 0; 345 UINT8 Flags; 346 347 348 Flags = AcpiGbl_DbOutputFlags; 349 if (Flags & ACPI_DB_REDIRECTABLE_OUTPUT) 350 { 351 /* Output is directable to either a file (if open) or the console */ 352 353 if (AcpiGbl_DebugFile) 354 { 355 /* Output file is open, send the output there */ 356 357 Count = vfprintf (AcpiGbl_DebugFile, Fmt, Args); 358 } 359 else 360 { 361 /* No redirection, send output to console (once only!) */ 362 363 Flags |= ACPI_DB_CONSOLE_OUTPUT; 364 } 365 } 366 367 if (Flags & ACPI_DB_CONSOLE_OUTPUT) 368 { 369 Count = vfprintf (AcpiGbl_OutputFile, Fmt, Args); 370 } 371} 372 373 374/****************************************************************************** 375 * 376 * FUNCTION: AcpiOsGetLine 377 * 378 * PARAMETERS: fmt Standard printf format 379 * args Argument list 380 * 381 * RETURN: Actual bytes read 382 * 383 * DESCRIPTION: Formatted input with argument list pointer 384 * 385 *****************************************************************************/ 386 387UINT32 388AcpiOsGetLine ( 389 char *Buffer) 390{ 391 UINT8 Temp; 392 UINT32 i; 393 394 395 for (i = 0; ; i++) 396 { 397 scanf ("%1c", &Temp); 398 if (!Temp || Temp == '\n') 399 { 400 break; 401 } 402 403 Buffer [i] = Temp; 404 } 405 406 /* Null terminate the buffer */ 407 408 Buffer [i] = 0; 409 410 /* Return the number of bytes in the string */ 411 412 return (i); 413} 414 415/****************************************************************************** 416 * 417 * FUNCTION: AcpiOsMapMemory 418 * 419 * PARAMETERS: where Physical address of memory to be mapped 420 * length How much memory to map 421 * 422 * RETURN: Pointer to mapped memory. Null on error. 423 * 424 * DESCRIPTION: Map physical memory into caller's address space 425 * 426 *****************************************************************************/ 427 428void * 429AcpiOsMapMemory ( 430 ACPI_PHYSICAL_ADDRESS where, 431 ACPI_SIZE length) 432{ 433 434 return (ACPI_TO_POINTER ((ACPI_SIZE) where)); 435} 436 437 438/****************************************************************************** 439 * 440 * FUNCTION: AcpiOsUnmapMemory 441 * 442 * PARAMETERS: where Logical address of memory to be unmapped 443 * length How much memory to unmap 444 * 445 * RETURN: None. 446 * 447 * DESCRIPTION: Delete a previously created mapping. Where and Length must 448 * correspond to a previous mapping exactly. 449 * 450 *****************************************************************************/ 451 452void 453AcpiOsUnmapMemory ( 454 void *where, 455 ACPI_SIZE length) 456{ 457 458 return; 459} 460 461 462/****************************************************************************** 463 * 464 * FUNCTION: AcpiOsAllocate 465 * 466 * PARAMETERS: Size Amount to allocate, in bytes 467 * 468 * RETURN: Pointer to the new allocation. Null on error. 469 * 470 * DESCRIPTION: Allocate memory. Algorithm is dependent on the OS. 471 * 472 *****************************************************************************/ 473 474void * 475AcpiOsAllocate ( 476 ACPI_SIZE size) 477{ 478 void *Mem; 479 480 481 Mem = (void *) malloc ((size_t) size); 482 return (Mem); 483} 484 485 486/****************************************************************************** 487 * 488 * FUNCTION: AcpiOsFree 489 * 490 * PARAMETERS: mem Pointer to previously allocated memory 491 * 492 * RETURN: None. 493 * 494 * DESCRIPTION: Free memory allocated via AcpiOsAllocate 495 * 496 *****************************************************************************/ 497 498void 499AcpiOsFree ( 500 void *mem) 501{ 502 503 free (mem); 504} 505 506 507/****************************************************************************** 508 * 509 * FUNCTION: AcpiOsCreateSemaphore 510 * 511 * PARAMETERS: InitialUnits - Units to be assigned to the new semaphore 512 * OutHandle - Where a handle will be returned 513 * 514 * RETURN: Status 515 * 516 * DESCRIPTION: Create an OS semaphore 517 * 518 *****************************************************************************/ 519 520ACPI_STATUS 521AcpiOsCreateSemaphore ( 522 UINT32 MaxUnits, 523 UINT32 InitialUnits, 524 ACPI_HANDLE *OutHandle) 525{ 526 sem_t *Sem; 527 528 529 if (!OutHandle) 530 { 531 return (AE_BAD_PARAMETER); 532 } 533 534#ifdef __APPLE__ 535 Sem = sem_open (tmpnam (NULL), O_EXCL|O_CREAT, 0755, InitialUnits); 536 if (!Sem) 537 { 538 return (AE_NO_MEMORY); 539 } 540 541#else 542 Sem = AcpiOsAllocate (sizeof (sem_t)); 543 if (!Sem) 544 { 545 return (AE_NO_MEMORY); 546 } 547 548 if (sem_init (Sem, 0, InitialUnits) == -1) 549 { 550 AcpiOsFree (Sem); 551 return (AE_BAD_PARAMETER); 552 } 553#endif 554 555 *OutHandle = (ACPI_HANDLE) Sem; 556 return (AE_OK); 557} 558 559 560/****************************************************************************** 561 * 562 * FUNCTION: AcpiOsDeleteSemaphore 563 * 564 * PARAMETERS: Handle - Handle returned by AcpiOsCreateSemaphore 565 * 566 * RETURN: Status 567 * 568 * DESCRIPTION: Delete an OS semaphore 569 * 570 *****************************************************************************/ 571 572ACPI_STATUS 573AcpiOsDeleteSemaphore ( 574 ACPI_HANDLE Handle) 575{ 576 sem_t *Sem = (sem_t *) Handle; 577 578 579 if (!Sem) 580 { 581 return (AE_BAD_PARAMETER); 582 } 583 584 if (sem_destroy (Sem) == -1) 585 { 586 return (AE_BAD_PARAMETER); 587 } 588 589 return (AE_OK); 590} 591 592 593/****************************************************************************** 594 * 595 * FUNCTION: AcpiOsWaitSemaphore 596 * 597 * PARAMETERS: Handle - Handle returned by AcpiOsCreateSemaphore 598 * Units - How many units to wait for 599 * Timeout - How long to wait 600 * 601 * RETURN: Status 602 * 603 * DESCRIPTION: Wait for units 604 * 605 *****************************************************************************/ 606 607ACPI_STATUS 608AcpiOsWaitSemaphore ( 609 ACPI_HANDLE Handle, 610 UINT32 Units, 611 UINT16 Timeout) 612{ 613 ACPI_STATUS Status = AE_OK; 614 sem_t *Sem = (sem_t *) Handle; 615 struct timespec T; 616 617 618 if (!Sem) 619 { 620 return (AE_BAD_PARAMETER); 621 } 622 623 switch (Timeout) 624 { 625 /* 626 * No Wait: 627 * -------- 628 * A zero timeout value indicates that we shouldn't wait - just 629 * acquire the semaphore if available otherwise return AE_TIME 630 * (a.k.a. 'would block'). 631 */ 632 case 0: 633 634 if (sem_trywait(Sem) == -1) 635 { 636 Status = (AE_TIME); 637 } 638 break; 639 640 /* Wait Indefinitely */ 641 642 case ACPI_WAIT_FOREVER: 643 644 if (sem_wait (Sem)) 645 { 646 Status = (AE_TIME); 647 } 648 break; 649 650 /* Wait with Timeout */ 651 652 default: 653 654 T.tv_sec = Timeout / 1000; 655 T.tv_nsec = (Timeout - (T.tv_sec * 1000)) * 1000000; 656 657#ifdef ACPI_USE_ALTERNATE_TIMEOUT 658 /* 659 * Alternate timeout mechanism for environments where 660 * sem_timedwait is not available or does not work properly. 661 */ 662 while (Timeout) 663 { 664 if (sem_trywait (Sem) == 0) 665 { 666 /* Got the semaphore */ 667 return (AE_OK); 668 } 669 usleep (1000); /* one millisecond */ 670 Timeout--; 671 } 672 Status = (AE_TIME); 673#else 674 675 if (sem_timedwait (Sem, &T)) 676 { 677 Status = (AE_TIME); 678 } 679#endif 680 681 break; 682 } 683 684 return (Status); 685} 686 687 688/****************************************************************************** 689 * 690 * FUNCTION: AcpiOsSignalSemaphore 691 * 692 * PARAMETERS: Handle - Handle returned by AcpiOsCreateSemaphore 693 * Units - Number of units to send 694 * 695 * RETURN: Status 696 * 697 * DESCRIPTION: Send units 698 * 699 *****************************************************************************/ 700 701ACPI_STATUS 702AcpiOsSignalSemaphore ( 703 ACPI_HANDLE Handle, 704 UINT32 Units) 705{ 706 sem_t *Sem = (sem_t *)Handle; 707 708 709 if (!Sem) 710 { 711 return (AE_BAD_PARAMETER); 712 } 713 714 if (sem_post (Sem) == -1) 715 { 716 return (AE_LIMIT); 717 } 718 719 return (AE_OK); 720} 721 722 723/****************************************************************************** 724 * 725 * FUNCTION: Spinlock interfaces 726 * 727 * DESCRIPTION: Map these interfaces to semaphore interfaces 728 * 729 *****************************************************************************/ 730 731ACPI_STATUS 732AcpiOsCreateLock ( 733 ACPI_SPINLOCK *OutHandle) 734{ 735 736 return (AcpiOsCreateSemaphore (1, 1, OutHandle)); 737} 738 739 740void 741AcpiOsDeleteLock ( 742 ACPI_SPINLOCK Handle) 743{ 744 AcpiOsDeleteSemaphore (Handle); 745} 746 747 748ACPI_CPU_FLAGS 749AcpiOsAcquireLock ( 750 ACPI_HANDLE Handle) 751{ 752 AcpiOsWaitSemaphore (Handle, 1, 0xFFFF); 753 return (0); 754} 755 756 757void 758AcpiOsReleaseLock ( 759 ACPI_SPINLOCK Handle, 760 ACPI_CPU_FLAGS Flags) 761{ 762 AcpiOsSignalSemaphore (Handle, 1); 763} 764 765 766/****************************************************************************** 767 * 768 * FUNCTION: AcpiOsInstallInterruptHandler 769 * 770 * PARAMETERS: InterruptNumber Level handler should respond to. 771 * Isr Address of the ACPI interrupt handler 772 * ExceptPtr Where status is returned 773 * 774 * RETURN: Handle to the newly installed handler. 775 * 776 * DESCRIPTION: Install an interrupt handler. Used to install the ACPI 777 * OS-independent handler. 778 * 779 *****************************************************************************/ 780 781UINT32 782AcpiOsInstallInterruptHandler ( 783 UINT32 InterruptNumber, 784 ACPI_OSD_HANDLER ServiceRoutine, 785 void *Context) 786{ 787 788 return (AE_OK); 789} 790 791 792/****************************************************************************** 793 * 794 * FUNCTION: AcpiOsRemoveInterruptHandler 795 * 796 * PARAMETERS: Handle Returned when handler was installed 797 * 798 * RETURN: Status 799 * 800 * DESCRIPTION: Uninstalls an interrupt handler. 801 * 802 *****************************************************************************/ 803 804ACPI_STATUS 805AcpiOsRemoveInterruptHandler ( 806 UINT32 InterruptNumber, 807 ACPI_OSD_HANDLER ServiceRoutine) 808{ 809 810 return (AE_OK); 811} 812 813 814/****************************************************************************** 815 * 816 * FUNCTION: AcpiOsExecute 817 * 818 * PARAMETERS: Type - Type of execution 819 * Function - Address of the function to execute 820 * Context - Passed as a parameter to the function 821 * 822 * RETURN: Status. 823 * 824 * DESCRIPTION: Execute a new thread 825 * 826 *****************************************************************************/ 827 828ACPI_STATUS 829AcpiOsExecute ( 830 ACPI_EXECUTE_TYPE Type, 831 ACPI_OSD_EXEC_CALLBACK Function, 832 void *Context) 833{ 834 pthread_t thread; 835 int ret; 836 837 838 ret = pthread_create (&thread, NULL, (PTHREAD_CALLBACK) Function, Context); 839 if (ret) 840 { 841 AcpiOsPrintf("Create thread failed"); 842 } 843 return (0); 844} 845 846 847/****************************************************************************** 848 * 849 * FUNCTION: AcpiOsStall 850 * 851 * PARAMETERS: microseconds To sleep 852 * 853 * RETURN: Blocks until sleep is completed. 854 * 855 * DESCRIPTION: Sleep at microsecond granularity 856 * 857 *****************************************************************************/ 858 859void 860AcpiOsStall ( 861 UINT32 microseconds) 862{ 863 864 if (microseconds) 865 { 866 usleep (microseconds); 867 } 868} 869 870 871/****************************************************************************** 872 * 873 * FUNCTION: AcpiOsSleep 874 * 875 * PARAMETERS: milliseconds To sleep 876 * 877 * RETURN: Blocks until sleep is completed. 878 * 879 * DESCRIPTION: Sleep at millisecond granularity 880 * 881 *****************************************************************************/ 882 883void 884AcpiOsSleep ( 885 UINT64 milliseconds) 886{ 887 888 sleep (milliseconds / 1000); /* Sleep for whole seconds */ 889 890 /* 891 * Arg to usleep() must be less than 1,000,000 (1 second) 892 */ 893 usleep ((milliseconds % 1000) * 1000); /* Sleep for remaining usecs */ 894} 895 896/****************************************************************************** 897 * 898 * FUNCTION: AcpiOsGetTimer 899 * 900 * PARAMETERS: None 901 * 902 * RETURN: Current time in 100 nanosecond units 903 * 904 * DESCRIPTION: Get the current system time 905 * 906 *****************************************************************************/ 907 908UINT64 909AcpiOsGetTimer (void) 910{ 911 struct timeval time; 912 913 914 gettimeofday (&time, NULL); 915 916 /* Seconds * 10^7 = 100ns(10^-7), Microseconds(10^-6) * 10^1 = 100ns */ 917 918 return (((UINT64) time.tv_sec * 10000000) + ((UINT64) time.tv_usec * 10)); 919} 920 921 922/****************************************************************************** 923 * 924 * FUNCTION: AcpiOsReadPciConfiguration 925 * 926 * PARAMETERS: PciId Seg/Bus/Dev 927 * Register Device Register 928 * Value Buffer where value is placed 929 * Width Number of bits 930 * 931 * RETURN: Status 932 * 933 * DESCRIPTION: Read data from PCI configuration space 934 * 935 *****************************************************************************/ 936 937ACPI_STATUS 938AcpiOsReadPciConfiguration ( 939 ACPI_PCI_ID *PciId, 940 UINT32 Register, 941 UINT64 *Value, 942 UINT32 Width) 943{ 944 945 return (AE_OK); 946} 947 948 949/****************************************************************************** 950 * 951 * FUNCTION: AcpiOsWritePciConfiguration 952 * 953 * PARAMETERS: PciId Seg/Bus/Dev 954 * Register Device Register 955 * Value Value to be written 956 * Width Number of bits 957 * 958 * RETURN: Status. 959 * 960 * DESCRIPTION: Write data to PCI configuration space 961 * 962 *****************************************************************************/ 963 964ACPI_STATUS 965AcpiOsWritePciConfiguration ( 966 ACPI_PCI_ID *PciId, 967 UINT32 Register, 968 UINT64 Value, 969 UINT32 Width) 970{ 971 972 return (AE_OK); 973} 974 975 976/****************************************************************************** 977 * 978 * FUNCTION: AcpiOsReadPort 979 * 980 * PARAMETERS: Address Address of I/O port/register to read 981 * Value Where value is placed 982 * Width Number of bits 983 * 984 * RETURN: Value read from port 985 * 986 * DESCRIPTION: Read data from an I/O port or register 987 * 988 *****************************************************************************/ 989 990ACPI_STATUS 991AcpiOsReadPort ( 992 ACPI_IO_ADDRESS Address, 993 UINT32 *Value, 994 UINT32 Width) 995{ 996 997 switch (Width) 998 { 999 case 8: 1000 *Value = 0xFF; 1001 break; 1002 1003 case 16: 1004 *Value = 0xFFFF; 1005 break; 1006 1007 case 32: 1008 *Value = 0xFFFFFFFF; 1009 break; 1010 1011 default: 1012 return (AE_BAD_PARAMETER); 1013 } 1014 1015 return (AE_OK); 1016} 1017 1018 1019/****************************************************************************** 1020 * 1021 * FUNCTION: AcpiOsWritePort 1022 * 1023 * PARAMETERS: Address Address of I/O port/register to write 1024 * Value Value to write 1025 * Width Number of bits 1026 * 1027 * RETURN: None 1028 * 1029 * DESCRIPTION: Write data to an I/O port or register 1030 * 1031 *****************************************************************************/ 1032 1033ACPI_STATUS 1034AcpiOsWritePort ( 1035 ACPI_IO_ADDRESS Address, 1036 UINT32 Value, 1037 UINT32 Width) 1038{ 1039 1040 return (AE_OK); 1041} 1042 1043 1044/****************************************************************************** 1045 * 1046 * FUNCTION: AcpiOsReadMemory 1047 * 1048 * PARAMETERS: Address Physical Memory Address to read 1049 * Value Where value is placed 1050 * Width Number of bits 1051 * 1052 * RETURN: Value read from physical memory address 1053 * 1054 * DESCRIPTION: Read data from a physical memory address 1055 * 1056 *****************************************************************************/ 1057 1058ACPI_STATUS 1059AcpiOsReadMemory ( 1060 ACPI_PHYSICAL_ADDRESS Address, 1061 UINT32 *Value, 1062 UINT32 Width) 1063{ 1064 1065 switch (Width) 1066 { 1067 case 8: 1068 case 16: 1069 case 32: 1070 *Value = 0; 1071 break; 1072 1073 default: 1074 return (AE_BAD_PARAMETER); 1075 } 1076 return (AE_OK); 1077} 1078 1079 1080/****************************************************************************** 1081 * 1082 * FUNCTION: AcpiOsWriteMemory 1083 * 1084 * PARAMETERS: Address Physical Memory Address to write 1085 * Value Value to write 1086 * Width Number of bits 1087 * 1088 * RETURN: None 1089 * 1090 * DESCRIPTION: Write data to a physical memory address 1091 * 1092 *****************************************************************************/ 1093 1094ACPI_STATUS 1095AcpiOsWriteMemory ( 1096 ACPI_PHYSICAL_ADDRESS Address, 1097 UINT32 Value, 1098 UINT32 Width) 1099{ 1100 1101 return (AE_OK); 1102} 1103 1104 1105/****************************************************************************** 1106 * 1107 * FUNCTION: AcpiOsReadable 1108 * 1109 * PARAMETERS: Pointer - Area to be verified 1110 * Length - Size of area 1111 * 1112 * RETURN: TRUE if readable for entire length 1113 * 1114 * DESCRIPTION: Verify that a pointer is valid for reading 1115 * 1116 *****************************************************************************/ 1117 1118BOOLEAN 1119AcpiOsReadable ( 1120 void *Pointer, 1121 ACPI_SIZE Length) 1122{ 1123 1124 return (TRUE); 1125} 1126 1127 1128/****************************************************************************** 1129 * 1130 * FUNCTION: AcpiOsWritable 1131 * 1132 * PARAMETERS: Pointer - Area to be verified 1133 * Length - Size of area 1134 * 1135 * RETURN: TRUE if writable for entire length 1136 * 1137 * DESCRIPTION: Verify that a pointer is valid for writing 1138 * 1139 *****************************************************************************/ 1140 1141BOOLEAN 1142AcpiOsWritable ( 1143 void *Pointer, 1144 ACPI_SIZE Length) 1145{ 1146 1147 return (TRUE); 1148} 1149 1150 1151/****************************************************************************** 1152 * 1153 * FUNCTION: AcpiOsGetThreadId 1154 * 1155 * PARAMETERS: None 1156 * 1157 * RETURN: Id of the running thread 1158 * 1159 * DESCRIPTION: Get the Id of the current (running) thread 1160 * 1161 *****************************************************************************/ 1162 1163ACPI_THREAD_ID 1164AcpiOsGetThreadId ( 1165 void) 1166{ 1167 1168 return (ACPI_CAST_PTHREAD_T (pthread_self())); 1169} 1170 1171 1172/****************************************************************************** 1173 * 1174 * FUNCTION: AcpiOsSignal 1175 * 1176 * PARAMETERS: Function ACPI CA signal function code 1177 * Info Pointer to function-dependent structure 1178 * 1179 * RETURN: Status 1180 * 1181 * DESCRIPTION: Miscellaneous functions. Example implementation only. 1182 * 1183 *****************************************************************************/ 1184 1185ACPI_STATUS 1186AcpiOsSignal ( 1187 UINT32 Function, 1188 void *Info) 1189{ 1190 1191 switch (Function) 1192 { 1193 case ACPI_SIGNAL_FATAL: 1194 break; 1195 1196 case ACPI_SIGNAL_BREAKPOINT: 1197 break; 1198 1199 default: 1200 break; 1201 } 1202 1203 return (AE_OK); 1204} 1205 1206 1207