diff options
Diffstat (limited to 'drivers/acpi/events/evgpe.c')
-rw-r--r-- | drivers/acpi/events/evgpe.c | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c index 118d72ac7c76..081120b109ba 100644 --- a/drivers/acpi/events/evgpe.c +++ b/drivers/acpi/events/evgpe.c | |||
@@ -48,6 +48,12 @@ | |||
48 | #define _COMPONENT ACPI_EVENTS | 48 | #define _COMPONENT ACPI_EVENTS |
49 | ACPI_MODULE_NAME ("evgpe") | 49 | ACPI_MODULE_NAME ("evgpe") |
50 | 50 | ||
51 | /* Local prototypes */ | ||
52 | |||
53 | static void ACPI_SYSTEM_XFACE | ||
54 | acpi_ev_asynch_execute_gpe_method ( | ||
55 | void *context); | ||
56 | |||
51 | 57 | ||
52 | /******************************************************************************* | 58 | /******************************************************************************* |
53 | * | 59 | * |
@@ -335,8 +341,10 @@ acpi_ev_get_gpe_event_info ( | |||
335 | gpe_block = acpi_gbl_gpe_fadt_blocks[i]; | 341 | gpe_block = acpi_gbl_gpe_fadt_blocks[i]; |
336 | if (gpe_block) { | 342 | if (gpe_block) { |
337 | if ((gpe_number >= gpe_block->block_base_number) && | 343 | if ((gpe_number >= gpe_block->block_base_number) && |
338 | (gpe_number < gpe_block->block_base_number + (gpe_block->register_count * 8))) { | 344 | (gpe_number < gpe_block->block_base_number + |
339 | return (&gpe_block->event_info[gpe_number - gpe_block->block_base_number]); | 345 | (gpe_block->register_count * 8))) { |
346 | return (&gpe_block->event_info[gpe_number - | ||
347 | gpe_block->block_base_number]); | ||
340 | } | 348 | } |
341 | } | 349 | } |
342 | } | 350 | } |
@@ -437,7 +445,7 @@ acpi_ev_gpe_detect ( | |||
437 | "Read GPE Register at GPE%X: Status=%02X, Enable=%02X\n", | 445 | "Read GPE Register at GPE%X: Status=%02X, Enable=%02X\n", |
438 | gpe_register_info->base_gpe_number, status_reg, enable_reg)); | 446 | gpe_register_info->base_gpe_number, status_reg, enable_reg)); |
439 | 447 | ||
440 | /* First check if there is anything active at all in this register */ | 448 | /* Check if there is anything active at all in this register */ |
441 | 449 | ||
442 | enabled_status_byte = (u8) (status_reg & enable_reg); | 450 | enabled_status_byte = (u8) (status_reg & enable_reg); |
443 | if (!enabled_status_byte) { | 451 | if (!enabled_status_byte) { |
@@ -457,8 +465,8 @@ acpi_ev_gpe_detect ( | |||
457 | * or method. | 465 | * or method. |
458 | */ | 466 | */ |
459 | int_status |= acpi_ev_gpe_dispatch ( | 467 | int_status |= acpi_ev_gpe_dispatch ( |
460 | &gpe_block->event_info[(i * ACPI_GPE_REGISTER_WIDTH) + j], | 468 | &gpe_block->event_info[(i * ACPI_GPE_REGISTER_WIDTH) + j], |
461 | (u32) j + gpe_register_info->base_gpe_number); | 469 | (u32) j + gpe_register_info->base_gpe_number); |
462 | } | 470 | } |
463 | } | 471 | } |
464 | } | 472 | } |
@@ -523,7 +531,8 @@ acpi_ev_asynch_execute_gpe_method ( | |||
523 | * Take a snapshot of the GPE info for this level - we copy the | 531 | * Take a snapshot of the GPE info for this level - we copy the |
524 | * info to prevent a race condition with remove_handler/remove_block. | 532 | * info to prevent a race condition with remove_handler/remove_block. |
525 | */ | 533 | */ |
526 | ACPI_MEMCPY (&local_gpe_event_info, gpe_event_info, sizeof (struct acpi_gpe_event_info)); | 534 | ACPI_MEMCPY (&local_gpe_event_info, gpe_event_info, |
535 | sizeof (struct acpi_gpe_event_info)); | ||
527 | 536 | ||
528 | status = acpi_ut_release_mutex (ACPI_MTX_EVENTS); | 537 | status = acpi_ut_release_mutex (ACPI_MTX_EVENTS); |
529 | if (ACPI_FAILURE (status)) { | 538 | if (ACPI_FAILURE (status)) { |
@@ -534,7 +543,8 @@ acpi_ev_asynch_execute_gpe_method ( | |||
534 | * Must check for control method type dispatch one more | 543 | * Must check for control method type dispatch one more |
535 | * time to avoid race with ev_gpe_install_handler | 544 | * time to avoid race with ev_gpe_install_handler |
536 | */ | 545 | */ |
537 | if ((local_gpe_event_info.flags & ACPI_GPE_DISPATCH_MASK) == ACPI_GPE_DISPATCH_METHOD) { | 546 | if ((local_gpe_event_info.flags & ACPI_GPE_DISPATCH_MASK) == |
547 | ACPI_GPE_DISPATCH_METHOD) { | ||
538 | /* | 548 | /* |
539 | * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx | 549 | * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx |
540 | * control method that corresponds to this GPE | 550 | * control method that corresponds to this GPE |
@@ -553,7 +563,8 @@ acpi_ev_asynch_execute_gpe_method ( | |||
553 | } | 563 | } |
554 | } | 564 | } |
555 | 565 | ||
556 | if ((local_gpe_event_info.flags & ACPI_GPE_XRUPT_TYPE_MASK) == ACPI_GPE_LEVEL_TRIGGERED) { | 566 | if ((local_gpe_event_info.flags & ACPI_GPE_XRUPT_TYPE_MASK) == |
567 | ACPI_GPE_LEVEL_TRIGGERED) { | ||
557 | /* | 568 | /* |
558 | * GPE is level-triggered, we clear the GPE status bit after | 569 | * GPE is level-triggered, we clear the GPE status bit after |
559 | * handling the event. | 570 | * handling the event. |
@@ -575,7 +586,7 @@ acpi_ev_asynch_execute_gpe_method ( | |||
575 | * | 586 | * |
576 | * FUNCTION: acpi_ev_gpe_dispatch | 587 | * FUNCTION: acpi_ev_gpe_dispatch |
577 | * | 588 | * |
578 | * PARAMETERS: gpe_event_info - info for this GPE | 589 | * PARAMETERS: gpe_event_info - Info for this GPE |
579 | * gpe_number - Number relative to the parent GPE block | 590 | * gpe_number - Number relative to the parent GPE block |
580 | * | 591 | * |
581 | * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED | 592 | * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED |
@@ -602,10 +613,12 @@ acpi_ev_gpe_dispatch ( | |||
602 | * If edge-triggered, clear the GPE status bit now. Note that | 613 | * If edge-triggered, clear the GPE status bit now. Note that |
603 | * level-triggered events are cleared after the GPE is serviced. | 614 | * level-triggered events are cleared after the GPE is serviced. |
604 | */ | 615 | */ |
605 | if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) == ACPI_GPE_EDGE_TRIGGERED) { | 616 | if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) == |
617 | ACPI_GPE_EDGE_TRIGGERED) { | ||
606 | status = acpi_hw_clear_gpe (gpe_event_info); | 618 | status = acpi_hw_clear_gpe (gpe_event_info); |
607 | if (ACPI_FAILURE (status)) { | 619 | if (ACPI_FAILURE (status)) { |
608 | ACPI_REPORT_ERROR (("acpi_ev_gpe_dispatch: %s, Unable to clear GPE[%2X]\n", | 620 | ACPI_REPORT_ERROR (( |
621 | "acpi_ev_gpe_dispatch: %s, Unable to clear GPE[%2X]\n", | ||
609 | acpi_format_exception (status), gpe_number)); | 622 | acpi_format_exception (status), gpe_number)); |
610 | return_VALUE (ACPI_INTERRUPT_NOT_HANDLED); | 623 | return_VALUE (ACPI_INTERRUPT_NOT_HANDLED); |
611 | } | 624 | } |
@@ -639,7 +652,8 @@ acpi_ev_gpe_dispatch ( | |||
639 | 652 | ||
640 | /* It is now safe to clear level-triggered events. */ | 653 | /* It is now safe to clear level-triggered events. */ |
641 | 654 | ||
642 | if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) == ACPI_GPE_LEVEL_TRIGGERED) { | 655 | if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) == |
656 | ACPI_GPE_LEVEL_TRIGGERED) { | ||
643 | status = acpi_hw_clear_gpe (gpe_event_info); | 657 | status = acpi_hw_clear_gpe (gpe_event_info); |
644 | if (ACPI_FAILURE (status)) { | 658 | if (ACPI_FAILURE (status)) { |
645 | ACPI_REPORT_ERROR (( | 659 | ACPI_REPORT_ERROR (( |
@@ -704,7 +718,6 @@ acpi_ev_gpe_dispatch ( | |||
704 | 718 | ||
705 | 719 | ||
706 | #ifdef ACPI_GPE_NOTIFY_CHECK | 720 | #ifdef ACPI_GPE_NOTIFY_CHECK |
707 | |||
708 | /******************************************************************************* | 721 | /******************************************************************************* |
709 | * TBD: NOT USED, PROTOTYPE ONLY AND WILL PROBABLY BE REMOVED | 722 | * TBD: NOT USED, PROTOTYPE ONLY AND WILL PROBABLY BE REMOVED |
710 | * | 723 | * |