1 /****************************************************************************** 2 * 3 * Module Name: hwgpe - Low level GPE enable/disable/clear functions 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2020, 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 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152 #include <contrib/dev/acpica/include/acpi.h> 153 #include <contrib/dev/acpica/include/accommon.h> 154 #include <contrib/dev/acpica/include/acevents.h> 155 156 #define _COMPONENT ACPI_HARDWARE 157 ACPI_MODULE_NAME ("hwgpe") 158 159 #if (!ACPI_REDUCED_HARDWARE) /* Entire module */ 160 161 /* Local prototypes */ 162 163 static ACPI_STATUS 164 AcpiHwEnableWakeupGpeBlock ( 165 ACPI_GPE_XRUPT_INFO *GpeXruptInfo, 166 ACPI_GPE_BLOCK_INFO *GpeBlock, 167 void *Context); 168 169 static ACPI_STATUS 170 AcpiHwGpeEnableWrite ( 171 UINT8 EnableMask, 172 ACPI_GPE_REGISTER_INFO *GpeRegisterInfo); 173 174 175 /****************************************************************************** 176 * 177 * FUNCTION: AcpiHwGetGpeRegisterBit 178 * 179 * PARAMETERS: GpeEventInfo - Info block for the GPE 180 * 181 * RETURN: Register mask with a one in the GPE bit position 182 * 183 * DESCRIPTION: Compute the register mask for this GPE. One bit is set in the 184 * correct position for the input GPE. 185 * 186 ******************************************************************************/ 187 188 UINT32 189 AcpiHwGetGpeRegisterBit ( 190 ACPI_GPE_EVENT_INFO *GpeEventInfo) 191 { 192 193 return ((UINT32) 1 << 194 (GpeEventInfo->GpeNumber - GpeEventInfo->RegisterInfo->BaseGpeNumber)); 195 } 196 197 198 /****************************************************************************** 199 * 200 * FUNCTION: AcpiHwLowSetGpe 201 * 202 * PARAMETERS: GpeEventInfo - Info block for the GPE to be disabled 203 * Action - Enable or disable 204 * 205 * RETURN: Status 206 * 207 * DESCRIPTION: Enable or disable a single GPE in the parent enable register. 208 * The EnableMask field of the involved GPE register must be 209 * updated by the caller if necessary. 210 * 211 ******************************************************************************/ 212 213 ACPI_STATUS 214 AcpiHwLowSetGpe ( 215 ACPI_GPE_EVENT_INFO *GpeEventInfo, 216 UINT32 Action) 217 { 218 ACPI_GPE_REGISTER_INFO *GpeRegisterInfo; 219 ACPI_STATUS Status = AE_OK; 220 UINT64 EnableMask; 221 UINT32 RegisterBit; 222 223 224 ACPI_FUNCTION_ENTRY (); 225 226 227 /* Get the info block for the entire GPE register */ 228 229 GpeRegisterInfo = GpeEventInfo->RegisterInfo; 230 if (!GpeRegisterInfo) 231 { 232 return (AE_NOT_EXIST); 233 } 234 235 /* Get current value of the enable register that contains this GPE */ 236 237 Status = AcpiHwRead (&EnableMask, &GpeRegisterInfo->EnableAddress); 238 if (ACPI_FAILURE (Status)) 239 { 240 return (Status); 241 } 242 243 /* Set or clear just the bit that corresponds to this GPE */ 244 245 RegisterBit = AcpiHwGetGpeRegisterBit (GpeEventInfo); 246 switch (Action) 247 { 248 case ACPI_GPE_CONDITIONAL_ENABLE: 249 250 /* Only enable if the corresponding EnableMask bit is set */ 251 252 if (!(RegisterBit & GpeRegisterInfo->EnableMask)) 253 { 254 return (AE_BAD_PARAMETER); 255 } 256 257 /*lint -fallthrough */ 258 259 case ACPI_GPE_ENABLE: 260 261 ACPI_SET_BIT (EnableMask, RegisterBit); 262 break; 263 264 case ACPI_GPE_DISABLE: 265 266 ACPI_CLEAR_BIT (EnableMask, RegisterBit); 267 break; 268 269 default: 270 271 ACPI_ERROR ((AE_INFO, "Invalid GPE Action, %u", Action)); 272 return (AE_BAD_PARAMETER); 273 } 274 275 if (!(RegisterBit & GpeRegisterInfo->MaskForRun)) 276 { 277 /* Write the updated enable mask */ 278 279 Status = AcpiHwWrite (EnableMask, &GpeRegisterInfo->EnableAddress); 280 } 281 return (Status); 282 } 283 284 285 /****************************************************************************** 286 * 287 * FUNCTION: AcpiHwClearGpe 288 * 289 * PARAMETERS: GpeEventInfo - Info block for the GPE to be cleared 290 * 291 * RETURN: Status 292 * 293 * DESCRIPTION: Clear the status bit for a single GPE. 294 * 295 ******************************************************************************/ 296 297 ACPI_STATUS 298 AcpiHwClearGpe ( 299 ACPI_GPE_EVENT_INFO *GpeEventInfo) 300 { 301 ACPI_GPE_REGISTER_INFO *GpeRegisterInfo; 302 ACPI_STATUS Status; 303 UINT32 RegisterBit; 304 305 306 ACPI_FUNCTION_ENTRY (); 307 308 /* Get the info block for the entire GPE register */ 309 310 GpeRegisterInfo = GpeEventInfo->RegisterInfo; 311 if (!GpeRegisterInfo) 312 { 313 return (AE_NOT_EXIST); 314 } 315 316 /* 317 * Write a one to the appropriate bit in the status register to 318 * clear this GPE. 319 */ 320 RegisterBit = AcpiHwGetGpeRegisterBit (GpeEventInfo); 321 322 Status = AcpiHwWrite (RegisterBit, &GpeRegisterInfo->StatusAddress); 323 return (Status); 324 } 325 326 327 /****************************************************************************** 328 * 329 * FUNCTION: AcpiHwGetGpeStatus 330 * 331 * PARAMETERS: GpeEventInfo - Info block for the GPE to queried 332 * EventStatus - Where the GPE status is returned 333 * 334 * RETURN: Status 335 * 336 * DESCRIPTION: Return the status of a single GPE. 337 * 338 ******************************************************************************/ 339 340 ACPI_STATUS 341 AcpiHwGetGpeStatus ( 342 ACPI_GPE_EVENT_INFO *GpeEventInfo, 343 ACPI_EVENT_STATUS *EventStatus) 344 { 345 UINT64 InByte; 346 UINT32 RegisterBit; 347 ACPI_GPE_REGISTER_INFO *GpeRegisterInfo; 348 ACPI_EVENT_STATUS LocalEventStatus = 0; 349 ACPI_STATUS Status; 350 351 352 ACPI_FUNCTION_ENTRY (); 353 354 355 if (!EventStatus) 356 { 357 return (AE_BAD_PARAMETER); 358 } 359 360 /* GPE currently handled? */ 361 362 if (ACPI_GPE_DISPATCH_TYPE (GpeEventInfo->Flags) != 363 ACPI_GPE_DISPATCH_NONE) 364 { 365 LocalEventStatus |= ACPI_EVENT_FLAG_HAS_HANDLER; 366 } 367 368 /* Get the info block for the entire GPE register */ 369 370 GpeRegisterInfo = GpeEventInfo->RegisterInfo; 371 372 /* Get the register bitmask for this GPE */ 373 374 RegisterBit = AcpiHwGetGpeRegisterBit (GpeEventInfo); 375 376 /* GPE currently enabled? (enabled for runtime?) */ 377 378 if (RegisterBit & GpeRegisterInfo->EnableForRun) 379 { 380 LocalEventStatus |= ACPI_EVENT_FLAG_ENABLED; 381 } 382 383 /* GPE currently masked? (masked for runtime?) */ 384 385 if (RegisterBit & GpeRegisterInfo->MaskForRun) 386 { 387 LocalEventStatus |= ACPI_EVENT_FLAG_MASKED; 388 } 389 390 /* GPE enabled for wake? */ 391 392 if (RegisterBit & GpeRegisterInfo->EnableForWake) 393 { 394 LocalEventStatus |= ACPI_EVENT_FLAG_WAKE_ENABLED; 395 } 396 397 /* GPE currently enabled (enable bit == 1)? */ 398 399 Status = AcpiHwRead (&InByte, &GpeRegisterInfo->EnableAddress); 400 if (ACPI_FAILURE (Status)) 401 { 402 return (Status); 403 } 404 405 if (RegisterBit & InByte) 406 { 407 LocalEventStatus |= ACPI_EVENT_FLAG_ENABLE_SET; 408 } 409 410 /* GPE currently active (status bit == 1)? */ 411 412 Status = AcpiHwRead (&InByte, &GpeRegisterInfo->StatusAddress); 413 if (ACPI_FAILURE (Status)) 414 { 415 return (Status); 416 } 417 418 if (RegisterBit & InByte) 419 { 420 LocalEventStatus |= ACPI_EVENT_FLAG_STATUS_SET; 421 } 422 423 /* Set return value */ 424 425 (*EventStatus) = LocalEventStatus; 426 return (AE_OK); 427 } 428 429 430 /****************************************************************************** 431 * 432 * FUNCTION: AcpiHwGpeEnableWrite 433 * 434 * PARAMETERS: EnableMask - Bit mask to write to the GPE register 435 * GpeRegisterInfo - Gpe Register info 436 * 437 * RETURN: Status 438 * 439 * DESCRIPTION: Write the enable mask byte to the given GPE register. 440 * 441 ******************************************************************************/ 442 443 static ACPI_STATUS 444 AcpiHwGpeEnableWrite ( 445 UINT8 EnableMask, 446 ACPI_GPE_REGISTER_INFO *GpeRegisterInfo) 447 { 448 ACPI_STATUS Status; 449 450 451 GpeRegisterInfo->EnableMask = EnableMask; 452 453 Status = AcpiHwWrite (EnableMask, &GpeRegisterInfo->EnableAddress); 454 return (Status); 455 } 456 457 458 /****************************************************************************** 459 * 460 * FUNCTION: AcpiHwDisableGpeBlock 461 * 462 * PARAMETERS: GpeXruptInfo - GPE Interrupt info 463 * GpeBlock - Gpe Block info 464 * 465 * RETURN: Status 466 * 467 * DESCRIPTION: Disable all GPEs within a single GPE block 468 * 469 ******************************************************************************/ 470 471 ACPI_STATUS 472 AcpiHwDisableGpeBlock ( 473 ACPI_GPE_XRUPT_INFO *GpeXruptInfo, 474 ACPI_GPE_BLOCK_INFO *GpeBlock, 475 void *Context) 476 { 477 UINT32 i; 478 ACPI_STATUS Status; 479 480 481 /* Examine each GPE Register within the block */ 482 483 for (i = 0; i < GpeBlock->RegisterCount; i++) 484 { 485 /* Disable all GPEs in this register */ 486 487 Status = AcpiHwGpeEnableWrite (0x00, &GpeBlock->RegisterInfo[i]); 488 if (ACPI_FAILURE (Status)) 489 { 490 return (Status); 491 } 492 } 493 494 return (AE_OK); 495 } 496 497 498 /****************************************************************************** 499 * 500 * FUNCTION: AcpiHwClearGpeBlock 501 * 502 * PARAMETERS: GpeXruptInfo - GPE Interrupt info 503 * GpeBlock - Gpe Block info 504 * 505 * RETURN: Status 506 * 507 * DESCRIPTION: Clear status bits for all GPEs within a single GPE block 508 * 509 ******************************************************************************/ 510 511 ACPI_STATUS 512 AcpiHwClearGpeBlock ( 513 ACPI_GPE_XRUPT_INFO *GpeXruptInfo, 514 ACPI_GPE_BLOCK_INFO *GpeBlock, 515 void *Context) 516 { 517 UINT32 i; 518 ACPI_STATUS Status; 519 520 521 /* Examine each GPE Register within the block */ 522 523 for (i = 0; i < GpeBlock->RegisterCount; i++) 524 { 525 /* Clear status on all GPEs in this register */ 526 527 Status = AcpiHwWrite (0xFF, &GpeBlock->RegisterInfo[i].StatusAddress); 528 if (ACPI_FAILURE (Status)) 529 { 530 return (Status); 531 } 532 } 533 534 return (AE_OK); 535 } 536 537 538 /****************************************************************************** 539 * 540 * FUNCTION: AcpiHwEnableRuntimeGpeBlock 541 * 542 * PARAMETERS: GpeXruptInfo - GPE Interrupt info 543 * GpeBlock - Gpe Block info 544 * 545 * RETURN: Status 546 * 547 * DESCRIPTION: Enable all "runtime" GPEs within a single GPE block. Includes 548 * combination wake/run GPEs. 549 * 550 ******************************************************************************/ 551 552 ACPI_STATUS 553 AcpiHwEnableRuntimeGpeBlock ( 554 ACPI_GPE_XRUPT_INFO *GpeXruptInfo, 555 ACPI_GPE_BLOCK_INFO *GpeBlock, 556 void *Context) 557 { 558 UINT32 i; 559 ACPI_STATUS Status; 560 ACPI_GPE_REGISTER_INFO *GpeRegisterInfo; 561 UINT8 EnableMask; 562 563 564 /* NOTE: assumes that all GPEs are currently disabled */ 565 566 /* Examine each GPE Register within the block */ 567 568 for (i = 0; i < GpeBlock->RegisterCount; i++) 569 { 570 GpeRegisterInfo = &GpeBlock->RegisterInfo[i]; 571 if (!GpeRegisterInfo->EnableForRun) 572 { 573 continue; 574 } 575 576 /* Enable all "runtime" GPEs in this register */ 577 578 EnableMask = GpeRegisterInfo->EnableForRun & 579 ~GpeRegisterInfo->MaskForRun; 580 Status = AcpiHwGpeEnableWrite (EnableMask, GpeRegisterInfo); 581 if (ACPI_FAILURE (Status)) 582 { 583 return (Status); 584 } 585 } 586 587 return (AE_OK); 588 } 589 590 591 /****************************************************************************** 592 * 593 * FUNCTION: AcpiHwEnableWakeupGpeBlock 594 * 595 * PARAMETERS: GpeXruptInfo - GPE Interrupt info 596 * GpeBlock - Gpe Block info 597 * 598 * RETURN: Status 599 * 600 * DESCRIPTION: Enable all "wake" GPEs within a single GPE block. Includes 601 * combination wake/run GPEs. 602 * 603 ******************************************************************************/ 604 605 static ACPI_STATUS 606 AcpiHwEnableWakeupGpeBlock ( 607 ACPI_GPE_XRUPT_INFO *GpeXruptInfo, 608 ACPI_GPE_BLOCK_INFO *GpeBlock, 609 void *Context) 610 { 611 UINT32 i; 612 ACPI_STATUS Status; 613 ACPI_GPE_REGISTER_INFO *GpeRegisterInfo; 614 615 616 /* Examine each GPE Register within the block */ 617 618 for (i = 0; i < GpeBlock->RegisterCount; i++) 619 { 620 GpeRegisterInfo = &GpeBlock->RegisterInfo[i]; 621 622 /* 623 * Enable all "wake" GPEs in this register and disable the 624 * remaining ones. 625 */ 626 Status = AcpiHwGpeEnableWrite (GpeRegisterInfo->EnableForWake, 627 GpeRegisterInfo); 628 if (ACPI_FAILURE (Status)) 629 { 630 return (Status); 631 } 632 } 633 634 return (AE_OK); 635 } 636 637 638 /****************************************************************************** 639 * 640 * FUNCTION: AcpiHwGetGpeBlockStatus 641 * 642 * PARAMETERS: GpeXruptInfo - GPE Interrupt info 643 * GpeBlock - Gpe Block info 644 * 645 * RETURN: Success 646 * 647 * DESCRIPTION: Produce a combined GPE status bits mask for the given block. 648 * 649 ******************************************************************************/ 650 651 static ACPI_STATUS 652 AcpiHwGetGpeBlockStatus( 653 ACPI_GPE_XRUPT_INFO *GpeXruptInfo, 654 ACPI_GPE_BLOCK_INFO *GpeBlock, 655 void *RetPtr) 656 { 657 ACPI_GPE_REGISTER_INFO *GpeRegisterInfo; 658 UINT64 InEnable; 659 UINT64 InStatus; 660 ACPI_STATUS Status; 661 UINT8 *Ret = RetPtr; 662 UINT32 i; 663 664 665 /* Examine each GPE Register within the block */ 666 667 for (i = 0; i < GpeBlock->RegisterCount; i++) 668 { 669 GpeRegisterInfo = &GpeBlock->RegisterInfo[i]; 670 671 Status = AcpiHwRead (&InEnable, &GpeRegisterInfo->EnableAddress); 672 if (ACPI_FAILURE (Status)) 673 { 674 continue; 675 } 676 677 Status = AcpiHwRead (&InStatus, &GpeRegisterInfo->StatusAddress); 678 if (ACPI_FAILURE (Status)) 679 { 680 continue; 681 } 682 683 *Ret |= InEnable & InStatus; 684 } 685 686 return (AE_OK); 687 } 688 689 690 /****************************************************************************** 691 * 692 * FUNCTION: AcpiHwDisableAllGpes 693 * 694 * PARAMETERS: None 695 * 696 * RETURN: Status 697 * 698 * DESCRIPTION: Disable and clear all GPEs in all GPE blocks 699 * 700 ******************************************************************************/ 701 702 ACPI_STATUS 703 AcpiHwDisableAllGpes ( 704 void) 705 { 706 ACPI_STATUS Status; 707 708 709 ACPI_FUNCTION_TRACE (HwDisableAllGpes); 710 711 712 Status = AcpiEvWalkGpeList (AcpiHwDisableGpeBlock, NULL); 713 return_ACPI_STATUS (Status); 714 } 715 716 717 /****************************************************************************** 718 * 719 * FUNCTION: AcpiHwEnableAllRuntimeGpes 720 * 721 * PARAMETERS: None 722 * 723 * RETURN: Status 724 * 725 * DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks 726 * 727 ******************************************************************************/ 728 729 ACPI_STATUS 730 AcpiHwEnableAllRuntimeGpes ( 731 void) 732 { 733 ACPI_STATUS Status; 734 735 736 ACPI_FUNCTION_TRACE (HwEnableAllRuntimeGpes); 737 738 739 Status = AcpiEvWalkGpeList (AcpiHwEnableRuntimeGpeBlock, NULL); 740 return_ACPI_STATUS (Status); 741 } 742 743 744 /****************************************************************************** 745 * 746 * FUNCTION: AcpiHwEnableAllWakeupGpes 747 * 748 * PARAMETERS: None 749 * 750 * RETURN: Status 751 * 752 * DESCRIPTION: Enable all "wakeup" GPEs, in all GPE blocks 753 * 754 ******************************************************************************/ 755 756 ACPI_STATUS 757 AcpiHwEnableAllWakeupGpes ( 758 void) 759 { 760 ACPI_STATUS Status; 761 762 763 ACPI_FUNCTION_TRACE (HwEnableAllWakeupGpes); 764 765 766 Status = AcpiEvWalkGpeList (AcpiHwEnableWakeupGpeBlock, NULL); 767 return_ACPI_STATUS (Status); 768 } 769 770 771 /****************************************************************************** 772 * 773 * FUNCTION: AcpiHwCheckAllGpes 774 * 775 * PARAMETERS: None 776 * 777 * RETURN: Combined status of all GPEs 778 * 779 * DESCRIPTION: Check all enabled GPEs in all GPE blocks and return TRUE if the 780 * status bit is set for at least one of them of FALSE otherwise. 781 * 782 ******************************************************************************/ 783 784 UINT8 785 AcpiHwCheckAllGpes ( 786 void) 787 { 788 UINT8 Ret = 0; 789 790 791 ACPI_FUNCTION_TRACE (AcpiHwCheckAllGpes); 792 793 (void) AcpiEvWalkGpeList (AcpiHwGetGpeBlockStatus, &Ret); 794 return (Ret != 0); 795 } 796 797 #endif /* !ACPI_REDUCED_HARDWARE */ 798