osunixxf.c revision 1.1.1.1
1 /****************************************************************************** 2 * 3 * Module Name: osunixxf - UNIX OSL interfaces 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * 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 */ 121 122 #include <stdio.h> 123 #include <stdlib.h> 124 #include <stdarg.h> 125 #include <unistd.h> 126 #include <sys/time.h> 127 #include <semaphore.h> 128 #include <pthread.h> 129 130 #include "acpi.h" 131 #include "accommon.h" 132 #include "amlcode.h" 133 #include "acparser.h" 134 #include "acdebug.h" 135 136 #define _COMPONENT ACPI_OS_SERVICES 137 ACPI_MODULE_NAME ("osunixxf") 138 139 140 extern FILE *AcpiGbl_DebugFile; 141 FILE *AcpiGbl_OutputFile; 142 143 144 /* Upcalls to AcpiExec */ 145 146 ACPI_PHYSICAL_ADDRESS 147 AeLocalGetRootPointer ( 148 void); 149 150 void 151 AeTableOverride ( 152 ACPI_TABLE_HEADER *ExistingTable, 153 ACPI_TABLE_HEADER **NewTable); 154 155 typedef void* (*PTHREAD_CALLBACK) (void *); 156 157 158 /****************************************************************************** 159 * 160 * FUNCTION: AcpiOsInitialize, AcpiOsTerminate 161 * 162 * PARAMETERS: None 163 * 164 * RETURN: Status 165 * 166 * DESCRIPTION: Init and terminate. Nothing to do. 167 * 168 *****************************************************************************/ 169 170 ACPI_STATUS 171 AcpiOsInitialize (void) 172 { 173 174 AcpiGbl_OutputFile = stdout; 175 return (AE_OK); 176 } 177 178 179 ACPI_STATUS 180 AcpiOsTerminate (void) 181 { 182 183 return (AE_OK); 184 } 185 186 187 /****************************************************************************** 188 * 189 * FUNCTION: AcpiOsGetRootPointer 190 * 191 * PARAMETERS: None 192 * 193 * RETURN: RSDP physical address 194 * 195 * DESCRIPTION: Gets the root pointer (RSDP) 196 * 197 *****************************************************************************/ 198 199 ACPI_PHYSICAL_ADDRESS 200 AcpiOsGetRootPointer ( 201 void) 202 { 203 204 return (AeLocalGetRootPointer ()); 205 } 206 207 208 /****************************************************************************** 209 * 210 * FUNCTION: AcpiOsPredefinedOverride 211 * 212 * PARAMETERS: InitVal - Initial value of the predefined object 213 * NewVal - The new value for the object 214 * 215 * RETURN: Status, pointer to value. Null pointer returned if not 216 * overriding. 217 * 218 * DESCRIPTION: Allow the OS to override predefined names 219 * 220 *****************************************************************************/ 221 222 ACPI_STATUS 223 AcpiOsPredefinedOverride ( 224 const ACPI_PREDEFINED_NAMES *InitVal, 225 ACPI_STRING *NewVal) 226 { 227 228 if (!InitVal || !NewVal) 229 { 230 return (AE_BAD_PARAMETER); 231 } 232 233 *NewVal = NULL; 234 return (AE_OK); 235 } 236 237 238 /****************************************************************************** 239 * 240 * FUNCTION: AcpiOsTableOverride 241 * 242 * PARAMETERS: ExistingTable - Header of current table (probably firmware) 243 * NewTable - Where an entire new table is returned. 244 * 245 * RETURN: Status, pointer to new table. Null pointer returned if no 246 * table is available to override 247 * 248 * DESCRIPTION: Return a different version of a table if one is available 249 * 250 *****************************************************************************/ 251 252 ACPI_STATUS 253 AcpiOsTableOverride ( 254 ACPI_TABLE_HEADER *ExistingTable, 255 ACPI_TABLE_HEADER **NewTable) 256 { 257 258 if (!ExistingTable || !NewTable) 259 { 260 return (AE_BAD_PARAMETER); 261 } 262 263 *NewTable = NULL; 264 265 #ifdef ACPI_EXEC_APP 266 267 AeTableOverride (ExistingTable, NewTable); 268 return (AE_OK); 269 #else 270 271 return (AE_NO_ACPI_TABLES); 272 #endif 273 } 274 275 276 /****************************************************************************** 277 * 278 * FUNCTION: AcpiOsRedirectOutput 279 * 280 * PARAMETERS: Destination - An open file handle/pointer 281 * 282 * RETURN: None 283 * 284 * DESCRIPTION: Causes redirect of AcpiOsPrintf and AcpiOsVprintf 285 * 286 *****************************************************************************/ 287 288 void 289 AcpiOsRedirectOutput ( 290 void *Destination) 291 { 292 293 AcpiGbl_OutputFile = Destination; 294 } 295 296 297 /****************************************************************************** 298 * 299 * FUNCTION: AcpiOsPrintf 300 * 301 * PARAMETERS: fmt, ... Standard printf format 302 * 303 * RETURN: None 304 * 305 * DESCRIPTION: Formatted output 306 * 307 *****************************************************************************/ 308 309 void ACPI_INTERNAL_VAR_XFACE 310 AcpiOsPrintf ( 311 const char *Fmt, 312 ...) 313 { 314 va_list Args; 315 316 317 va_start (Args, Fmt); 318 AcpiOsVprintf (Fmt, Args); 319 va_end (Args); 320 } 321 322 323 /****************************************************************************** 324 * 325 * FUNCTION: AcpiOsVprintf 326 * 327 * PARAMETERS: fmt Standard printf format 328 * args Argument list 329 * 330 * RETURN: None 331 * 332 * DESCRIPTION: Formatted output with argument list pointer 333 * 334 *****************************************************************************/ 335 336 void 337 AcpiOsVprintf ( 338 const char *Fmt, 339 va_list Args) 340 { 341 INT32 Count = 0; 342 UINT8 Flags; 343 344 345 Flags = AcpiGbl_DbOutputFlags; 346 if (Flags & ACPI_DB_REDIRECTABLE_OUTPUT) 347 { 348 /* Output is directable to either a file (if open) or the console */ 349 350 if (AcpiGbl_DebugFile) 351 { 352 /* Output file is open, send the output there */ 353 354 Count = vfprintf (AcpiGbl_DebugFile, Fmt, Args); 355 } 356 else 357 { 358 /* No redirection, send output to console (once only!) */ 359 360 Flags |= ACPI_DB_CONSOLE_OUTPUT; 361 } 362 } 363 364 if (Flags & ACPI_DB_CONSOLE_OUTPUT) 365 { 366 Count = vfprintf (AcpiGbl_OutputFile, Fmt, Args); 367 } 368 } 369 370 371 /****************************************************************************** 372 * 373 * FUNCTION: AcpiOsGetLine 374 * 375 * PARAMETERS: fmt Standard printf format 376 * args Argument list 377 * 378 * RETURN: Actual bytes read 379 * 380 * DESCRIPTION: Formatted input with argument list pointer 381 * 382 *****************************************************************************/ 383 384 UINT32 385 AcpiOsGetLine ( 386 char *Buffer) 387 { 388 UINT8 Temp; 389 UINT32 i; 390 391 392 for (i = 0; ; i++) 393 { 394 scanf ("%1c", &Temp); 395 if (!Temp || Temp == '\n') 396 { 397 break; 398 } 399 400 Buffer [i] = Temp; 401 } 402 403 /* Null terminate the buffer */ 404 405 Buffer [i] = 0; 406 407 /* Return the number of bytes in the string */ 408 409 return (i); 410 } 411 412 /****************************************************************************** 413 * 414 * FUNCTION: AcpiOsMapMemory 415 * 416 * PARAMETERS: where Physical address of memory to be mapped 417 * length How much memory to map 418 * 419 * RETURN: Pointer to mapped memory. Null on error. 420 * 421 * DESCRIPTION: Map physical memory into caller's address space 422 * 423 *****************************************************************************/ 424 425 void * 426 AcpiOsMapMemory ( 427 ACPI_PHYSICAL_ADDRESS where, 428 ACPI_SIZE length) 429 { 430 431 return (ACPI_TO_POINTER ((ACPI_SIZE) where)); 432 } 433 434 435 /****************************************************************************** 436 * 437 * FUNCTION: AcpiOsUnmapMemory 438 * 439 * PARAMETERS: where Logical address of memory to be unmapped 440 * length How much memory to unmap 441 * 442 * RETURN: None. 443 * 444 * DESCRIPTION: Delete a previously created mapping. Where and Length must 445 * correspond to a previous mapping exactly. 446 * 447 *****************************************************************************/ 448 449 void 450 AcpiOsUnmapMemory ( 451 void *where, 452 ACPI_SIZE length) 453 { 454 455 return; 456 } 457 458 459 /****************************************************************************** 460 * 461 * FUNCTION: AcpiOsAllocate 462 * 463 * PARAMETERS: Size Amount to allocate, in bytes 464 * 465 * RETURN: Pointer to the new allocation. Null on error. 466 * 467 * DESCRIPTION: Allocate memory. Algorithm is dependent on the OS. 468 * 469 *****************************************************************************/ 470 471 void * 472 AcpiOsAllocate ( 473 ACPI_SIZE size) 474 { 475 void *Mem; 476 477 478 Mem = (void *) malloc ((size_t) size); 479 return (Mem); 480 } 481 482 483 /****************************************************************************** 484 * 485 * FUNCTION: AcpiOsFree 486 * 487 * PARAMETERS: mem Pointer to previously allocated memory 488 * 489 * RETURN: None. 490 * 491 * DESCRIPTION: Free memory allocated via AcpiOsAllocate 492 * 493 *****************************************************************************/ 494 495 void 496 AcpiOsFree ( 497 void *mem) 498 { 499 500 free (mem); 501 } 502 503 504 /****************************************************************************** 505 * 506 * FUNCTION: AcpiOsCreateSemaphore 507 * 508 * PARAMETERS: InitialUnits - Units to be assigned to the new semaphore 509 * OutHandle - Where a handle will be returned 510 * 511 * RETURN: Status 512 * 513 * DESCRIPTION: Create an OS semaphore 514 * 515 *****************************************************************************/ 516 517 ACPI_STATUS 518 AcpiOsCreateSemaphore ( 519 UINT32 MaxUnits, 520 UINT32 InitialUnits, 521 ACPI_HANDLE *OutHandle) 522 { 523 sem_t *Sem; 524 525 526 if (!OutHandle) 527 { 528 return (AE_BAD_PARAMETER); 529 } 530 531 Sem = AcpiOsAllocate (sizeof (sem_t)); 532 533 if (!Sem) 534 { 535 return (AE_NO_MEMORY); 536 } 537 538 if (sem_init (Sem, 0, InitialUnits) == -1) 539 { 540 AcpiOsFree (Sem); 541 return (AE_BAD_PARAMETER); 542 } 543 544 *OutHandle = (ACPI_HANDLE) Sem; 545 return (AE_OK); 546 } 547 548 549 /****************************************************************************** 550 * 551 * FUNCTION: AcpiOsDeleteSemaphore 552 * 553 * PARAMETERS: Handle - Handle returned by AcpiOsCreateSemaphore 554 * 555 * RETURN: Status 556 * 557 * DESCRIPTION: Delete an OS semaphore 558 * 559 *****************************************************************************/ 560 561 ACPI_STATUS 562 AcpiOsDeleteSemaphore ( 563 ACPI_HANDLE Handle) 564 { 565 sem_t *Sem = (sem_t *) Handle; 566 567 568 if (!Sem) 569 { 570 return (AE_BAD_PARAMETER); 571 } 572 573 if (sem_destroy (Sem) == -1) 574 { 575 return (AE_BAD_PARAMETER); 576 } 577 578 return (AE_OK); 579 } 580 581 582 /****************************************************************************** 583 * 584 * FUNCTION: AcpiOsWaitSemaphore 585 * 586 * PARAMETERS: Handle - Handle returned by AcpiOsCreateSemaphore 587 * Units - How many units to wait for 588 * Timeout - How long to wait 589 * 590 * RETURN: Status 591 * 592 * DESCRIPTION: Wait for units 593 * 594 *****************************************************************************/ 595 596 ACPI_STATUS 597 AcpiOsWaitSemaphore ( 598 ACPI_HANDLE Handle, 599 UINT32 Units, 600 UINT16 Timeout) 601 { 602 ACPI_STATUS Status = AE_OK; 603 sem_t *Sem = (sem_t *) Handle; 604 struct timespec T; 605 606 607 if (!Sem) 608 { 609 return (AE_BAD_PARAMETER); 610 } 611 612 switch (Timeout) 613 { 614 /* 615 * No Wait: 616 * -------- 617 * A zero timeout value indicates that we shouldn't wait - just 618 * acquire the semaphore if available otherwise return AE_TIME 619 * (a.k.a. 'would block'). 620 */ 621 case 0: 622 623 if (sem_trywait(Sem) == -1) 624 { 625 Status = (AE_TIME); 626 } 627 break; 628 629 /* Wait Indefinitely */ 630 631 case ACPI_WAIT_FOREVER: 632 633 if (sem_wait (Sem)) 634 { 635 Status = (AE_TIME); 636 } 637 break; 638 639 /* Wait with Timeout */ 640 641 default: 642 643 T.tv_sec = Timeout / 1000; 644 T.tv_nsec = (Timeout - (T.tv_sec * 1000)) * 1000000; 645 646 #ifdef ACPI_USE_ALTERNATE_TIMEOUT 647 /* 648 * Alternate timeout mechanism for environments where 649 * sem_timedwait is not available or does not work properly. 650 */ 651 while (Timeout) 652 { 653 if (sem_trywait (Sem) == 0) 654 { 655 /* Got the semaphore */ 656 return (AE_OK); 657 } 658 usleep (1000); /* one millisecond */ 659 Timeout--; 660 } 661 Status = (AE_TIME); 662 #else 663 664 if (sem_timedwait (Sem, &T)) 665 { 666 Status = (AE_TIME); 667 } 668 #endif 669 670 break; 671 } 672 673 return (Status); 674 } 675 676 677 /****************************************************************************** 678 * 679 * FUNCTION: AcpiOsSignalSemaphore 680 * 681 * PARAMETERS: Handle - Handle returned by AcpiOsCreateSemaphore 682 * Units - Number of units to send 683 * 684 * RETURN: Status 685 * 686 * DESCRIPTION: Send units 687 * 688 *****************************************************************************/ 689 690 ACPI_STATUS 691 AcpiOsSignalSemaphore ( 692 ACPI_HANDLE Handle, 693 UINT32 Units) 694 { 695 sem_t *Sem = (sem_t *)Handle; 696 697 698 if (!Sem) 699 { 700 return (AE_BAD_PARAMETER); 701 } 702 703 if (sem_post (Sem) == -1) 704 { 705 return (AE_LIMIT); 706 } 707 708 return (AE_OK); 709 } 710 711 712 /****************************************************************************** 713 * 714 * FUNCTION: Spinlock interfaces 715 * 716 * DESCRIPTION: Map these interfaces to semaphore interfaces 717 * 718 *****************************************************************************/ 719 720 ACPI_STATUS 721 AcpiOsCreateLock ( 722 ACPI_SPINLOCK *OutHandle) 723 { 724 725 return (AcpiOsCreateSemaphore (1, 1, OutHandle)); 726 } 727 728 729 void 730 AcpiOsDeleteLock ( 731 ACPI_SPINLOCK Handle) 732 { 733 AcpiOsDeleteSemaphore (Handle); 734 } 735 736 737 ACPI_CPU_FLAGS 738 AcpiOsAcquireLock ( 739 ACPI_HANDLE Handle) 740 { 741 AcpiOsWaitSemaphore (Handle, 1, 0xFFFF); 742 return (0); 743 } 744 745 746 void 747 AcpiOsReleaseLock ( 748 ACPI_SPINLOCK Handle, 749 ACPI_CPU_FLAGS Flags) 750 { 751 AcpiOsSignalSemaphore (Handle, 1); 752 } 753 754 755 /****************************************************************************** 756 * 757 * FUNCTION: AcpiOsInstallInterruptHandler 758 * 759 * PARAMETERS: InterruptNumber Level handler should respond to. 760 * Isr Address of the ACPI interrupt handler 761 * ExceptPtr Where status is returned 762 * 763 * RETURN: Handle to the newly installed handler. 764 * 765 * DESCRIPTION: Install an interrupt handler. Used to install the ACPI 766 * OS-independent handler. 767 * 768 *****************************************************************************/ 769 770 UINT32 771 AcpiOsInstallInterruptHandler ( 772 UINT32 InterruptNumber, 773 ACPI_OSD_HANDLER ServiceRoutine, 774 void *Context) 775 { 776 777 return (AE_OK); 778 } 779 780 781 /****************************************************************************** 782 * 783 * FUNCTION: AcpiOsRemoveInterruptHandler 784 * 785 * PARAMETERS: Handle Returned when handler was installed 786 * 787 * RETURN: Status 788 * 789 * DESCRIPTION: Uninstalls an interrupt handler. 790 * 791 *****************************************************************************/ 792 793 ACPI_STATUS 794 AcpiOsRemoveInterruptHandler ( 795 UINT32 InterruptNumber, 796 ACPI_OSD_HANDLER ServiceRoutine) 797 { 798 799 return (AE_OK); 800 } 801 802 803 /****************************************************************************** 804 * 805 * FUNCTION: AcpiOsExecute 806 * 807 * PARAMETERS: Type - Type of execution 808 * Function - Address of the function to execute 809 * Context - Passed as a parameter to the function 810 * 811 * RETURN: Status. 812 * 813 * DESCRIPTION: Execute a new thread 814 * 815 *****************************************************************************/ 816 817 ACPI_STATUS 818 AcpiOsExecute ( 819 ACPI_EXECUTE_TYPE Type, 820 ACPI_OSD_EXEC_CALLBACK Function, 821 void *Context) 822 { 823 pthread_t thread; 824 int ret; 825 826 827 ret = pthread_create (&thread, NULL, (PTHREAD_CALLBACK) Function, Context); 828 if (ret) 829 { 830 AcpiOsPrintf("Create thread failed"); 831 } 832 return (0); 833 } 834 835 836 /****************************************************************************** 837 * 838 * FUNCTION: AcpiOsStall 839 * 840 * PARAMETERS: microseconds To sleep 841 * 842 * RETURN: Blocks until sleep is completed. 843 * 844 * DESCRIPTION: Sleep at microsecond granularity 845 * 846 *****************************************************************************/ 847 848 void 849 AcpiOsStall ( 850 UINT32 microseconds) 851 { 852 853 if (microseconds) 854 { 855 usleep (microseconds); 856 } 857 } 858 859 860 /****************************************************************************** 861 * 862 * FUNCTION: AcpiOsSleep 863 * 864 * PARAMETERS: milliseconds To sleep 865 * 866 * RETURN: Blocks until sleep is completed. 867 * 868 * DESCRIPTION: Sleep at millisecond granularity 869 * 870 *****************************************************************************/ 871 872 void 873 AcpiOsSleep ( 874 UINT64 milliseconds) 875 { 876 877 sleep (milliseconds / 1000); /* Sleep for whole seconds */ 878 879 /* 880 * Arg to usleep() must be less than 1,000,000 (1 second) 881 */ 882 usleep ((milliseconds % 1000) * 1000); /* Sleep for remaining usecs */ 883 } 884 885 /****************************************************************************** 886 * 887 * FUNCTION: AcpiOsGetTimer 888 * 889 * PARAMETERS: None 890 * 891 * RETURN: Current time in 100 nanosecond units 892 * 893 * DESCRIPTION: Get the current system time 894 * 895 *****************************************************************************/ 896 897 UINT64 898 AcpiOsGetTimer (void) 899 { 900 struct timeval time; 901 902 903 gettimeofday (&time, NULL); 904 905 /* Seconds * 10^7 = 100ns(10^-7), Microseconds(10^-6) * 10^1 = 100ns */ 906 907 return (((UINT64) time.tv_sec * 10000000) + ((UINT64) time.tv_usec * 10)); 908 } 909 910 911 /****************************************************************************** 912 * 913 * FUNCTION: AcpiOsValidateInterface 914 * 915 * PARAMETERS: Interface - Requested interface to be validated 916 * 917 * RETURN: AE_OK if interface is supported, AE_SUPPORT otherwise 918 * 919 * DESCRIPTION: Match an interface string to the interfaces supported by the 920 * host. Strings originate from an AML call to the _OSI method. 921 * 922 *****************************************************************************/ 923 924 ACPI_STATUS 925 AcpiOsValidateInterface ( 926 char *Interface) 927 { 928 929 return (AE_SUPPORT); 930 } 931 932 933 /****************************************************************************** 934 * 935 * FUNCTION: AcpiOsReadPciConfiguration 936 * 937 * PARAMETERS: PciId Seg/Bus/Dev 938 * Register Device Register 939 * Value Buffer where value is placed 940 * Width Number of bits 941 * 942 * RETURN: Status 943 * 944 * DESCRIPTION: Read data from PCI configuration space 945 * 946 *****************************************************************************/ 947 948 ACPI_STATUS 949 AcpiOsReadPciConfiguration ( 950 ACPI_PCI_ID *PciId, 951 UINT32 Register, 952 void *Value, 953 UINT32 Width) 954 { 955 956 return (AE_OK); 957 } 958 959 960 /****************************************************************************** 961 * 962 * FUNCTION: AcpiOsWritePciConfiguration 963 * 964 * PARAMETERS: PciId Seg/Bus/Dev 965 * Register Device Register 966 * Value Value to be written 967 * Width Number of bits 968 * 969 * RETURN: Status. 970 * 971 * DESCRIPTION: Write data to PCI configuration space 972 * 973 *****************************************************************************/ 974 975 ACPI_STATUS 976 AcpiOsWritePciConfiguration ( 977 ACPI_PCI_ID *PciId, 978 UINT32 Register, 979 UINT64 Value, 980 UINT32 Width) 981 { 982 983 return (AE_OK); 984 } 985 986 /* TEMPORARY STUB FUNCTION */ 987 void 988 AcpiOsDerivePciId( 989 ACPI_HANDLE Device, 990 ACPI_HANDLE Region, 991 ACPI_PCI_ID **PciId) 992 { 993 994 } 995 996 997 /****************************************************************************** 998 * 999 * FUNCTION: AcpiOsReadPort 1000 * 1001 * PARAMETERS: Address Address of I/O port/register to read 1002 * Value Where value is placed 1003 * Width Number of bits 1004 * 1005 * RETURN: Value read from port 1006 * 1007 * DESCRIPTION: Read data from an I/O port or register 1008 * 1009 *****************************************************************************/ 1010 1011 ACPI_STATUS 1012 AcpiOsReadPort ( 1013 ACPI_IO_ADDRESS Address, 1014 UINT32 *Value, 1015 UINT32 Width) 1016 { 1017 1018 switch (Width) 1019 { 1020 case 8: 1021 *Value = 0xFF; 1022 break; 1023 1024 case 16: 1025 *Value = 0xFFFF; 1026 break; 1027 1028 case 32: 1029 *Value = 0xFFFFFFFF; 1030 break; 1031 1032 default: 1033 return (AE_BAD_PARAMETER); 1034 } 1035 1036 return (AE_OK); 1037 } 1038 1039 1040 /****************************************************************************** 1041 * 1042 * FUNCTION: AcpiOsWritePort 1043 * 1044 * PARAMETERS: Address Address of I/O port/register to write 1045 * Value Value to write 1046 * Width Number of bits 1047 * 1048 * RETURN: None 1049 * 1050 * DESCRIPTION: Write data to an I/O port or register 1051 * 1052 *****************************************************************************/ 1053 1054 ACPI_STATUS 1055 AcpiOsWritePort ( 1056 ACPI_IO_ADDRESS Address, 1057 UINT32 Value, 1058 UINT32 Width) 1059 { 1060 1061 return (AE_OK); 1062 } 1063 1064 1065 /****************************************************************************** 1066 * 1067 * FUNCTION: AcpiOsReadMemory 1068 * 1069 * PARAMETERS: Address Physical Memory Address to read 1070 * Value Where value is placed 1071 * Width Number of bits 1072 * 1073 * RETURN: Value read from physical memory address 1074 * 1075 * DESCRIPTION: Read data from a physical memory address 1076 * 1077 *****************************************************************************/ 1078 1079 ACPI_STATUS 1080 AcpiOsReadMemory ( 1081 ACPI_PHYSICAL_ADDRESS Address, 1082 UINT32 *Value, 1083 UINT32 Width) 1084 { 1085 1086 switch (Width) 1087 { 1088 case 8: 1089 case 16: 1090 case 32: 1091 *Value = 0; 1092 break; 1093 1094 default: 1095 return (AE_BAD_PARAMETER); 1096 } 1097 return (AE_OK); 1098 } 1099 1100 1101 /****************************************************************************** 1102 * 1103 * FUNCTION: AcpiOsWriteMemory 1104 * 1105 * PARAMETERS: Address Physical Memory Address to write 1106 * Value Value to write 1107 * Width Number of bits 1108 * 1109 * RETURN: None 1110 * 1111 * DESCRIPTION: Write data to a physical memory address 1112 * 1113 *****************************************************************************/ 1114 1115 ACPI_STATUS 1116 AcpiOsWriteMemory ( 1117 ACPI_PHYSICAL_ADDRESS Address, 1118 UINT32 Value, 1119 UINT32 Width) 1120 { 1121 1122 return (AE_OK); 1123 } 1124 1125 1126 /****************************************************************************** 1127 * 1128 * FUNCTION: AcpiOsReadable 1129 * 1130 * PARAMETERS: Pointer - Area to be verified 1131 * Length - Size of area 1132 * 1133 * RETURN: TRUE if readable for entire length 1134 * 1135 * DESCRIPTION: Verify that a pointer is valid for reading 1136 * 1137 *****************************************************************************/ 1138 1139 BOOLEAN 1140 AcpiOsReadable ( 1141 void *Pointer, 1142 ACPI_SIZE Length) 1143 { 1144 1145 return (TRUE); 1146 } 1147 1148 1149 /****************************************************************************** 1150 * 1151 * FUNCTION: AcpiOsWritable 1152 * 1153 * PARAMETERS: Pointer - Area to be verified 1154 * Length - Size of area 1155 * 1156 * RETURN: TRUE if writable for entire length 1157 * 1158 * DESCRIPTION: Verify that a pointer is valid for writing 1159 * 1160 *****************************************************************************/ 1161 1162 BOOLEAN 1163 AcpiOsWritable ( 1164 void *Pointer, 1165 ACPI_SIZE Length) 1166 { 1167 1168 return (TRUE); 1169 } 1170 1171 1172 /****************************************************************************** 1173 * 1174 * FUNCTION: AcpiOsGetThreadId 1175 * 1176 * PARAMETERS: None 1177 * 1178 * RETURN: Id of the running thread 1179 * 1180 * DESCRIPTION: Get the Id of the current (running) thread 1181 * 1182 * NOTE: The environment header should contain this line: 1183 * #define ACPI_THREAD_ID pthread_t 1184 * 1185 *****************************************************************************/ 1186 1187 ACPI_THREAD_ID 1188 AcpiOsGetThreadId (void) 1189 { 1190 1191 return (pthread_self ()); 1192 } 1193 1194 1195 /****************************************************************************** 1196 * 1197 * FUNCTION: AcpiOsSignal 1198 * 1199 * PARAMETERS: Function ACPI CA signal function code 1200 * Info Pointer to function-dependent structure 1201 * 1202 * RETURN: Status 1203 * 1204 * DESCRIPTION: Miscellaneous functions. Example implementation only. 1205 * 1206 *****************************************************************************/ 1207 1208 ACPI_STATUS 1209 AcpiOsSignal ( 1210 UINT32 Function, 1211 void *Info) 1212 { 1213 1214 switch (Function) 1215 { 1216 case ACPI_SIGNAL_FATAL: 1217 break; 1218 1219 case ACPI_SIGNAL_BREAKPOINT: 1220 break; 1221 1222 default: 1223 break; 1224 } 1225 1226 return (AE_OK); 1227 } 1228 1229 1230
Indexes created Mon Oct 20 11:09:49 GMT 2025