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hwsleep.c (128245) hwsleep.c (129684)
1
2/******************************************************************************
3 *
4 * Name: hwsleep.c - ACPI Hardware Sleep/Wake Interface
1
2/******************************************************************************
3 *
4 * Name: hwsleep.c - ACPI Hardware Sleep/Wake Interface
5 * $Revision: 66 $
5 * $Revision: 69 $
6 *
7 *****************************************************************************/
8
9/******************************************************************************
10 *
11 * 1. Copyright Notice
12 *
13 * Some or all of this work - Copyright (c) 1999 - 2004, Intel Corp.

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352 /* Clear wake status */
353
354 Status = AcpiSetRegister (ACPI_BITREG_WAKE_STATUS, 1, ACPI_MTX_DO_NOT_LOCK);
355 if (ACPI_FAILURE (Status))
356 {
357 return_ACPI_STATUS (Status);
358 }
359
6 *
7 *****************************************************************************/
8
9/******************************************************************************
10 *
11 * 1. Copyright Notice
12 *
13 * Some or all of this work - Copyright (c) 1999 - 2004, Intel Corp.

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352 /* Clear wake status */
353
354 Status = AcpiSetRegister (ACPI_BITREG_WAKE_STATUS, 1, ACPI_MTX_DO_NOT_LOCK);
355 if (ACPI_FAILURE (Status))
356 {
357 return_ACPI_STATUS (Status);
358 }
359
360 /* Clear all fixed and general purpose status bits */
361
360 Status = AcpiHwClearAcpiStatus (ACPI_MTX_DO_NOT_LOCK);
361 if (ACPI_FAILURE (Status))
362 {
363 return_ACPI_STATUS (Status);
364 }
365
366 if (SleepState != ACPI_STATE_S5)
367 {
368 /* Disable BM arbitration */
369
370 Status = AcpiSetRegister (ACPI_BITREG_ARB_DISABLE, 1, ACPI_MTX_DO_NOT_LOCK);
371 if (ACPI_FAILURE (Status))
372 {
373 return_ACPI_STATUS (Status);
374 }
375 }
376
377 /*
362 Status = AcpiHwClearAcpiStatus (ACPI_MTX_DO_NOT_LOCK);
363 if (ACPI_FAILURE (Status))
364 {
365 return_ACPI_STATUS (Status);
366 }
367
368 if (SleepState != ACPI_STATE_S5)
369 {
370 /* Disable BM arbitration */
371
372 Status = AcpiSetRegister (ACPI_BITREG_ARB_DISABLE, 1, ACPI_MTX_DO_NOT_LOCK);
373 if (ACPI_FAILURE (Status))
374 {
375 return_ACPI_STATUS (Status);
376 }
377 }
378
379 /*
378 * 1) Disable all runtime GPEs
380 * 1) Disable/Clear all GPEs
379 * 2) Enable all wakeup GPEs
380 */
381 * 2) Enable all wakeup GPEs
382 */
381 Status = AcpiHwPrepareGpesForSleep ();
383 Status = AcpiHwDisableAllGpes ();
382 if (ACPI_FAILURE (Status))
383 {
384 return_ACPI_STATUS (Status);
385 }
384 if (ACPI_FAILURE (Status))
385 {
386 return_ACPI_STATUS (Status);
387 }
388 AcpiGbl_SystemAwakeAndRunning = FALSE;
386
389
390 Status = AcpiHwEnableAllWakeupGpes ();
391 if (ACPI_FAILURE (Status))
392 {
393 return_ACPI_STATUS (Status);
394 }
395
387 /* Get current value of PM1A control */
388
389 Status = AcpiHwRegisterRead (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_CONTROL, &PM1AControl);
390 if (ACPI_FAILURE (Status))
391 {
392 return_ACPI_STATUS (Status);
393 }
394 ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "Entering sleep state [S%d]\n", SleepState));

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515
516 Status = AcpiHwClearAcpiStatus (ACPI_MTX_DO_NOT_LOCK);
517 if (ACPI_FAILURE (Status))
518 {
519 return_ACPI_STATUS (Status);
520 }
521
522 /*
396 /* Get current value of PM1A control */
397
398 Status = AcpiHwRegisterRead (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_CONTROL, &PM1AControl);
399 if (ACPI_FAILURE (Status))
400 {
401 return_ACPI_STATUS (Status);
402 }
403 ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "Entering sleep state [S%d]\n", SleepState));

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524
525 Status = AcpiHwClearAcpiStatus (ACPI_MTX_DO_NOT_LOCK);
526 if (ACPI_FAILURE (Status))
527 {
528 return_ACPI_STATUS (Status);
529 }
530
531 /*
523 * 1) Disable all runtime GPEs
532 * 1) Disable/Clear all GPEs
524 * 2) Enable all wakeup GPEs
525 */
533 * 2) Enable all wakeup GPEs
534 */
526 Status = AcpiHwPrepareGpesForSleep ();
535 Status = AcpiHwDisableAllGpes ();
527 if (ACPI_FAILURE (Status))
528 {
529 return_ACPI_STATUS (Status);
530 }
536 if (ACPI_FAILURE (Status))
537 {
538 return_ACPI_STATUS (Status);
539 }
540 AcpiGbl_SystemAwakeAndRunning = FALSE;
531
541
542 Status = AcpiHwEnableAllWakeupGpes ();
543 if (ACPI_FAILURE (Status))
544 {
545 return_ACPI_STATUS (Status);
546 }
547
532 ACPI_FLUSH_CPU_CACHE ();
533
534 Status = AcpiOsWritePort (AcpiGbl_FADT->SmiCmd, (UINT32) AcpiGbl_FADT->S4BiosReq, 8);
535
536 do {
537 AcpiOsStall(1000);
538 Status = AcpiGetRegister (ACPI_BITREG_WAKE_STATUS, &InValue, ACPI_MTX_DO_NOT_LOCK);
539 if (ACPI_FAILURE (Status))

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642 if (ACPI_FAILURE (Status) && Status != AE_NOT_FOUND)
643 {
644 ACPI_REPORT_ERROR (("Method _WAK failed, %s\n", AcpiFormatException (Status)));
645 }
646 /* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */
647
648 /*
649 * Restore the GPEs:
548 ACPI_FLUSH_CPU_CACHE ();
549
550 Status = AcpiOsWritePort (AcpiGbl_FADT->SmiCmd, (UINT32) AcpiGbl_FADT->S4BiosReq, 8);
551
552 do {
553 AcpiOsStall(1000);
554 Status = AcpiGetRegister (ACPI_BITREG_WAKE_STATUS, &InValue, ACPI_MTX_DO_NOT_LOCK);
555 if (ACPI_FAILURE (Status))

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658 if (ACPI_FAILURE (Status) && Status != AE_NOT_FOUND)
659 {
660 ACPI_REPORT_ERROR (("Method _WAK failed, %s\n", AcpiFormatException (Status)));
661 }
662 /* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */
663
664 /*
665 * Restore the GPEs:
650 * 1) Disable all wakeup GPEs
666 * 1) Disable/Clear all GPEs
651 * 2) Enable all runtime GPEs
652 */
667 * 2) Enable all runtime GPEs
668 */
653 Status = AcpiHwRestoreGpesOnWake ();
669 Status = AcpiHwDisableAllGpes ();
654 if (ACPI_FAILURE (Status))
655 {
656 return_ACPI_STATUS (Status);
657 }
670 if (ACPI_FAILURE (Status))
671 {
672 return_ACPI_STATUS (Status);
673 }
674 AcpiGbl_SystemAwakeAndRunning = TRUE;
658
675
676 Status = AcpiHwEnableAllRuntimeGpes ();
677 if (ACPI_FAILURE (Status))
678 {
679 return_ACPI_STATUS (Status);
680 }
681
659 /* Enable power button */
660
682 /* Enable power button */
683
661 AcpiSetRegister(AcpiGbl_FixedEventInfo[ACPI_EVENT_POWER_BUTTON].EnableRegisterId,
684 (void) AcpiSetRegister(AcpiGbl_FixedEventInfo[ACPI_EVENT_POWER_BUTTON].EnableRegisterId,
662 1, ACPI_MTX_DO_NOT_LOCK);
685 1, ACPI_MTX_DO_NOT_LOCK);
663 AcpiSetRegister(AcpiGbl_FixedEventInfo[ACPI_EVENT_POWER_BUTTON].StatusRegisterId,
686 (void) AcpiSetRegister(AcpiGbl_FixedEventInfo[ACPI_EVENT_POWER_BUTTON].StatusRegisterId,
664 1, ACPI_MTX_DO_NOT_LOCK);
665
666 /* Enable BM arbitration */
667
668 Status = AcpiSetRegister (ACPI_BITREG_ARB_DISABLE, 0, ACPI_MTX_LOCK);
669 if (ACPI_FAILURE (Status))
670 {
671 return_ACPI_STATUS (Status);
672 }
673
674 Arg.Integer.Value = ACPI_SST_WORKING;
675 Status = AcpiEvaluateObject (NULL, METHOD_NAME__SST, &ArgList, NULL);
676 if (ACPI_FAILURE (Status) && Status != AE_NOT_FOUND)
677 {
678 ACPI_REPORT_ERROR (("Method _SST failed, %s\n", AcpiFormatException (Status)));
679 }
680
681 return_ACPI_STATUS (Status);
682}
687 1, ACPI_MTX_DO_NOT_LOCK);
688
689 /* Enable BM arbitration */
690
691 Status = AcpiSetRegister (ACPI_BITREG_ARB_DISABLE, 0, ACPI_MTX_LOCK);
692 if (ACPI_FAILURE (Status))
693 {
694 return_ACPI_STATUS (Status);
695 }
696
697 Arg.Integer.Value = ACPI_SST_WORKING;
698 Status = AcpiEvaluateObject (NULL, METHOD_NAME__SST, &ArgList, NULL);
699 if (ACPI_FAILURE (Status) && Status != AE_NOT_FOUND)
700 {
701 ACPI_REPORT_ERROR (("Method _SST failed, %s\n", AcpiFormatException (Status)));
702 }
703
704 return_ACPI_STATUS (Status);
705}