aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/acpi/events/evgpe.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/acpi/events/evgpe.c')
-rw-r--r--drivers/acpi/events/evgpe.c39
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
53static void ACPI_SYSTEM_XFACE
54acpi_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 *