X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Facpi%2Fevents%2Fevgpe.c;h=c76c0583ca6a2a02aa860a28d980d5d940af52bf;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=221dca54d799cd0f7ee7e55b81f9ee6502e92cd2;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c index 221dca54d..c76c0583c 100644 --- a/drivers/acpi/events/evgpe.c +++ b/drivers/acpi/events/evgpe.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2004, R. Byron Moore + * Copyright (C) 2000 - 2006, R. Byron Moore * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -46,8 +46,244 @@ #include #define _COMPONENT ACPI_EVENTS - ACPI_MODULE_NAME ("evgpe") +ACPI_MODULE_NAME("evgpe") +/* Local prototypes */ +static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context); + +/******************************************************************************* + * + * FUNCTION: acpi_ev_set_gpe_type + * + * PARAMETERS: gpe_event_info - GPE to set + * Type - New type + * + * RETURN: Status + * + * DESCRIPTION: Sets the new type for the GPE (wake, run, or wake/run) + * + ******************************************************************************/ + +acpi_status +acpi_ev_set_gpe_type(struct acpi_gpe_event_info *gpe_event_info, u8 type) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_set_gpe_type); + + /* Validate type and update register enable masks */ + + switch (type) { + case ACPI_GPE_TYPE_WAKE: + case ACPI_GPE_TYPE_RUNTIME: + case ACPI_GPE_TYPE_WAKE_RUN: + break; + + default: + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Disable the GPE if currently enabled */ + + status = acpi_ev_disable_gpe(gpe_event_info); + + /* Type was validated above */ + + gpe_event_info->flags &= ~ACPI_GPE_TYPE_MASK; /* Clear type bits */ + gpe_event_info->flags |= type; /* Insert type */ + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_update_gpe_enable_masks + * + * PARAMETERS: gpe_event_info - GPE to update + * Type - What to do: ACPI_GPE_DISABLE or + * ACPI_GPE_ENABLE + * + * RETURN: Status + * + * DESCRIPTION: Updates GPE register enable masks based on the GPE type + * + ******************************************************************************/ + +acpi_status +acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info, + u8 type) +{ + struct acpi_gpe_register_info *gpe_register_info; + u8 register_bit; + + ACPI_FUNCTION_TRACE(ev_update_gpe_enable_masks); + + gpe_register_info = gpe_event_info->register_info; + if (!gpe_register_info) { + return_ACPI_STATUS(AE_NOT_EXIST); + } + register_bit = gpe_event_info->register_bit; + + /* 1) Disable case. Simply clear all enable bits */ + + if (type == ACPI_GPE_DISABLE) { + ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake, + register_bit); + ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit); + return_ACPI_STATUS(AE_OK); + } + + /* 2) Enable case. Set/Clear the appropriate enable bits */ + + switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) { + case ACPI_GPE_TYPE_WAKE: + ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit); + ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit); + break; + + case ACPI_GPE_TYPE_RUNTIME: + ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake, + register_bit); + ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit); + break; + + case ACPI_GPE_TYPE_WAKE_RUN: + ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit); + ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit); + break; + + default: + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_enable_gpe + * + * PARAMETERS: gpe_event_info - GPE to enable + * write_to_hardware - Enable now, or just mark data structs + * (WAKE GPEs should be deferred) + * + * RETURN: Status + * + * DESCRIPTION: Enable a GPE based on the GPE type + * + ******************************************************************************/ + +acpi_status +acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info, + u8 write_to_hardware) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_enable_gpe); + + /* Make sure HW enable masks are updated */ + + status = + acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_ENABLE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Mark wake-enabled or HW enable, or both */ + + switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) { + case ACPI_GPE_TYPE_WAKE: + + ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); + break; + + case ACPI_GPE_TYPE_WAKE_RUN: + + ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); + + /*lint -fallthrough */ + + case ACPI_GPE_TYPE_RUNTIME: + + ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED); + + if (write_to_hardware) { + + /* Clear the GPE (of stale events), then enable it */ + + status = acpi_hw_clear_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Enable the requested runtime GPE */ + + status = acpi_hw_write_gpe_enable_reg(gpe_event_info); + } + break; + + default: + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_disable_gpe + * + * PARAMETERS: gpe_event_info - GPE to disable + * + * RETURN: Status + * + * DESCRIPTION: Disable a GPE based on the GPE type + * + ******************************************************************************/ + +acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_disable_gpe); + + if (!(gpe_event_info->flags & ACPI_GPE_ENABLE_MASK)) { + return_ACPI_STATUS(AE_OK); + } + + /* Make sure HW enable masks are updated */ + + status = + acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_DISABLE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Mark wake-disabled or HW disable, or both */ + + switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) { + case ACPI_GPE_TYPE_WAKE: + ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); + break; + + case ACPI_GPE_TYPE_WAKE_RUN: + ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); + + /*lint -fallthrough */ + + case ACPI_GPE_TYPE_RUNTIME: + + /* Disable the requested runtime GPE */ + + ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED); + status = acpi_hw_write_gpe_enable_reg(gpe_event_info); + break; + + default: + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + return_ACPI_STATUS(AE_OK); +} /******************************************************************************* * @@ -66,30 +302,32 @@ * ******************************************************************************/ -struct acpi_gpe_event_info * -acpi_ev_get_gpe_event_info ( - acpi_handle gpe_device, - u32 gpe_number) +struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device, + u32 gpe_number) { - union acpi_operand_object *obj_desc; - struct acpi_gpe_block_info *gpe_block; - acpi_native_uint i; - - - ACPI_FUNCTION_ENTRY (); + union acpi_operand_object *obj_desc; + struct acpi_gpe_block_info *gpe_block; + acpi_native_uint i; + ACPI_FUNCTION_ENTRY(); /* A NULL gpe_block means use the FADT-defined GPE block(s) */ if (!gpe_device) { + /* Examine GPE Block 0 and 1 (These blocks are permanent) */ for (i = 0; i < ACPI_MAX_GPE_BLOCKS; i++) { gpe_block = acpi_gbl_gpe_fadt_blocks[i]; if (gpe_block) { - if ((gpe_number >= gpe_block->block_base_number) && - (gpe_number < gpe_block->block_base_number + (gpe_block->register_count * 8))) { - return (&gpe_block->event_info[gpe_number - gpe_block->block_base_number]); + if ((gpe_number >= gpe_block->block_base_number) + && (gpe_number < + gpe_block->block_base_number + + (gpe_block->register_count * 8))) { + return (&gpe_block-> + event_info[gpe_number - + gpe_block-> + block_base_number]); } } } @@ -101,23 +339,25 @@ acpi_ev_get_gpe_event_info ( /* A Non-NULL gpe_device means this is a GPE Block Device */ - obj_desc = acpi_ns_get_attached_object ((struct acpi_namespace_node *) gpe_device); - if (!obj_desc || - !obj_desc->device.gpe_block) { + obj_desc = + acpi_ns_get_attached_object((struct acpi_namespace_node *) + gpe_device); + if (!obj_desc || !obj_desc->device.gpe_block) { return (NULL); } gpe_block = obj_desc->device.gpe_block; if ((gpe_number >= gpe_block->block_base_number) && - (gpe_number < gpe_block->block_base_number + (gpe_block->register_count * 8))) { - return (&gpe_block->event_info[gpe_number - gpe_block->block_base_number]); + (gpe_number < + gpe_block->block_base_number + (gpe_block->register_count * 8))) { + return (&gpe_block-> + event_info[gpe_number - gpe_block->block_base_number]); } return (NULL); } - /******************************************************************************* * * FUNCTION: acpi_ev_gpe_detect @@ -132,21 +372,20 @@ acpi_ev_get_gpe_event_info ( * ******************************************************************************/ -u32 -acpi_ev_gpe_detect ( - struct acpi_gpe_xrupt_info *gpe_xrupt_list) +u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) { - u32 int_status = ACPI_INTERRUPT_NOT_HANDLED; - u8 enabled_status_byte; - struct acpi_gpe_register_info *gpe_register_info; - u32 in_value; - acpi_status status; - struct acpi_gpe_block_info *gpe_block; - u32 i; - u32 j; - - - ACPI_FUNCTION_NAME ("ev_gpe_detect"); + acpi_status status; + struct acpi_gpe_block_info *gpe_block; + struct acpi_gpe_register_info *gpe_register_info; + u32 int_status = ACPI_INTERRUPT_NOT_HANDLED; + u8 enabled_status_byte; + u32 status_reg; + u32 enable_reg; + acpi_cpu_flags flags; + acpi_native_uint i; + acpi_native_uint j; + + ACPI_FUNCTION_NAME(ev_gpe_detect); /* Check for the case where there are no GPEs */ @@ -154,9 +393,15 @@ acpi_ev_gpe_detect ( return (int_status); } + /* + * We need to obtain the GPE lock for both the data structs and registers + * Note: Not necessary to obtain the hardware lock, since the GPE registers + * are owned by the gpe_lock. + */ + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + /* Examine all GPE blocks attached to this interrupt level */ - acpi_os_acquire_lock (acpi_gbl_gpe_lock, ACPI_ISR); gpe_block = gpe_xrupt_list->gpe_block_list_head; while (gpe_block) { /* @@ -165,40 +410,43 @@ acpi_ev_gpe_detect ( * Find all currently active GP events. */ for (i = 0; i < gpe_block->register_count; i++) { + /* Get the next status/enable pair */ gpe_register_info = &gpe_block->register_info[i]; /* Read the Status Register */ - status = acpi_hw_low_level_read (ACPI_GPE_REGISTER_WIDTH, &in_value, - &gpe_register_info->status_address); - gpe_register_info->status = (u8) in_value; - if (ACPI_FAILURE (status)) { + status = + acpi_hw_low_level_read(ACPI_GPE_REGISTER_WIDTH, + &status_reg, + &gpe_register_info-> + status_address); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } /* Read the Enable Register */ - status = acpi_hw_low_level_read (ACPI_GPE_REGISTER_WIDTH, &in_value, - &gpe_register_info->enable_address); - gpe_register_info->enable = (u8) in_value; - if (ACPI_FAILURE (status)) { + status = + acpi_hw_low_level_read(ACPI_GPE_REGISTER_WIDTH, + &enable_reg, + &gpe_register_info-> + enable_address); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } - ACPI_DEBUG_PRINT ((ACPI_DB_INTERRUPTS, - "GPE pair: Status %8.8X%8.8X = %02X, Enable %8.8X%8.8X = %02X\n", - ACPI_FORMAT_UINT64 (gpe_register_info->status_address.address), - gpe_register_info->status, - ACPI_FORMAT_UINT64 (gpe_register_info->enable_address.address), - gpe_register_info->enable)); + ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS, + "Read GPE Register at GPE%X: Status=%02X, Enable=%02X\n", + gpe_register_info->base_gpe_number, + status_reg, enable_reg)); - /* First check if there is anything active at all in this register */ + /* Check if there is anything active at all in this register */ - enabled_status_byte = (u8) (gpe_register_info->status & - gpe_register_info->enable); + enabled_status_byte = (u8) (status_reg & enable_reg); if (!enabled_status_byte) { + /* No active GPEs in this register, move on */ continue; @@ -207,16 +455,24 @@ acpi_ev_gpe_detect ( /* Now look at the individual GPEs in this byte register */ for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) { + /* Examine one GPE bit */ - if (enabled_status_byte & acpi_gbl_decode_to8bit[j]) { + if (enabled_status_byte & + acpi_gbl_decode_to8bit[j]) { /* * Found an active GPE. Dispatch the event to a handler * or method. */ - int_status |= acpi_ev_gpe_dispatch ( - &gpe_block->event_info[(i * ACPI_GPE_REGISTER_WIDTH) + j], - j + gpe_register_info->base_gpe_number); + int_status |= + acpi_ev_gpe_dispatch(&gpe_block-> + event_info[(i * + ACPI_GPE_REGISTER_WIDTH) + + + j], + (u32) j + + gpe_register_info-> + base_gpe_number); } } } @@ -224,13 +480,12 @@ acpi_ev_gpe_detect ( gpe_block = gpe_block->next; } -unlock_and_exit: + unlock_and_exit: - acpi_os_release_lock (acpi_gbl_gpe_lock, ACPI_ISR); + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); return (int_status); } - /******************************************************************************* * * FUNCTION: acpi_ev_asynch_execute_gpe_method @@ -239,86 +494,112 @@ unlock_and_exit: * * RETURN: None * - * DESCRIPTION: Perform the actual execution of a GPE control method. This - * function is called from an invocation of acpi_os_queue_for_execution - * (and therefore does NOT execute at interrupt level) so that + * DESCRIPTION: Perform the actual execution of a GPE control method. This + * function is called from an invocation of acpi_os_execute and + * therefore does NOT execute at interrupt level - so that * the control method itself is not executed in the context of * an interrupt handler. * ******************************************************************************/ -static void ACPI_SYSTEM_XFACE -acpi_ev_asynch_execute_gpe_method ( - void *context) +static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) { - struct acpi_gpe_event_info *gpe_event_info = (void *) context; - u32 gpe_number = 0; - acpi_status status; - struct acpi_gpe_event_info local_gpe_event_info; + struct acpi_gpe_event_info *gpe_event_info = (void *)context; + acpi_status status; + struct acpi_gpe_event_info local_gpe_event_info; + struct acpi_evaluate_info *info; + ACPI_FUNCTION_TRACE(ev_asynch_execute_gpe_method); - ACPI_FUNCTION_TRACE ("ev_asynch_execute_gpe_method"); - - - status = acpi_ut_acquire_mutex (ACPI_MTX_EVENTS); - if (ACPI_FAILURE (status)) { + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { return_VOID; } /* Must revalidate the gpe_number/gpe_block */ - if (!acpi_ev_valid_gpe_event (gpe_event_info)) { - status = acpi_ut_release_mutex (ACPI_MTX_EVENTS); + if (!acpi_ev_valid_gpe_event(gpe_event_info)) { + status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); return_VOID; } + /* Set the GPE flags for return to enabled state */ + + (void)acpi_ev_enable_gpe(gpe_event_info, FALSE); + /* * Take a snapshot of the GPE info for this level - we copy the * info to prevent a race condition with remove_handler/remove_block. */ - ACPI_MEMCPY (&local_gpe_event_info, gpe_event_info, sizeof (struct acpi_gpe_event_info)); + ACPI_MEMCPY(&local_gpe_event_info, gpe_event_info, + sizeof(struct acpi_gpe_event_info)); - status = acpi_ut_release_mutex (ACPI_MTX_EVENTS); - if (ACPI_FAILURE (status)) { + status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { return_VOID; } - if (local_gpe_event_info.method_node) { - /* - * Invoke the GPE Method (_Lxx, _Exx): - * (Evaluate the _Lxx/_Exx control method that corresponds to this GPE.) - */ - status = acpi_ns_evaluate_by_handle (local_gpe_event_info.method_node, NULL, NULL); - if (ACPI_FAILURE (status)) { - ACPI_REPORT_ERROR (("%s while evaluating method [%4.4s] for GPE[%2X]\n", - acpi_format_exception (status), - acpi_ut_get_node_name (local_gpe_event_info.method_node), gpe_number)); + /* + * Must check for control method type dispatch one more + * time to avoid race with ev_gpe_install_handler + */ + if ((local_gpe_event_info.flags & ACPI_GPE_DISPATCH_MASK) == + ACPI_GPE_DISPATCH_METHOD) { + + /* Allocate the evaluation information block */ + + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + status = AE_NO_MEMORY; + } else { + /* + * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx + * control method that corresponds to this GPE + */ + info->prefix_node = + local_gpe_event_info.dispatch.method_node; + info->parameters = + ACPI_CAST_PTR(union acpi_operand_object *, + gpe_event_info); + info->parameter_type = ACPI_PARAM_GPE; + info->flags = ACPI_IGNORE_RETURN_VALUE; + + status = acpi_ns_evaluate(info); + ACPI_FREE(info); + } + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "While evaluating GPE method [%4.4s]", + acpi_ut_get_node_name + (local_gpe_event_info.dispatch. + method_node))); } } - if ((local_gpe_event_info.flags & ACPI_GPE_XRUPT_TYPE_MASK) == ACPI_GPE_LEVEL_TRIGGERED) { + if ((local_gpe_event_info.flags & ACPI_GPE_XRUPT_TYPE_MASK) == + ACPI_GPE_LEVEL_TRIGGERED) { /* - * GPE is level-triggered, we clear the GPE status bit after handling - * the event. + * GPE is level-triggered, we clear the GPE status bit after + * handling the event. */ - status = acpi_hw_clear_gpe (&local_gpe_event_info); - if (ACPI_FAILURE (status)) { + status = acpi_hw_clear_gpe(&local_gpe_event_info); + if (ACPI_FAILURE(status)) { return_VOID; } } /* Enable this GPE */ - (void) acpi_hw_enable_gpe (&local_gpe_event_info); + (void)acpi_hw_write_gpe_enable_reg(&local_gpe_event_info); return_VOID; } - /******************************************************************************* * * FUNCTION: acpi_ev_gpe_dispatch * - * PARAMETERS: gpe_event_info - info for this GPE + * PARAMETERS: gpe_event_info - Info for this GPE * gpe_number - Number relative to the parent GPE block * * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED @@ -331,29 +612,35 @@ acpi_ev_asynch_execute_gpe_method ( ******************************************************************************/ u32 -acpi_ev_gpe_dispatch ( - struct acpi_gpe_event_info *gpe_event_info, - u32 gpe_number) +acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number) { - acpi_status status; - - - ACPI_FUNCTION_TRACE ("ev_gpe_dispatch"); + acpi_status status; + ACPI_FUNCTION_TRACE(ev_gpe_dispatch); /* * If edge-triggered, clear the GPE status bit now. Note that * level-triggered events are cleared after the GPE is serviced. */ - if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) == ACPI_GPE_EDGE_TRIGGERED) { - status = acpi_hw_clear_gpe (gpe_event_info); - if (ACPI_FAILURE (status)) { - ACPI_REPORT_ERROR (("acpi_ev_gpe_dispatch: Unable to clear GPE[%2X]\n", - gpe_number)); - return_VALUE (ACPI_INTERRUPT_NOT_HANDLED); + if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) == + ACPI_GPE_EDGE_TRIGGERED) { + status = acpi_hw_clear_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Unable to clear GPE[%2X]", + gpe_number)); + return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); } } + /* Save current system state */ + + if (acpi_gbl_system_awake_and_running) { + ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_SYSTEM_RUNNING); + } else { + ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_SYSTEM_RUNNING); + } + /* * Dispatch the GPE to either an installed handler, or the control * method associated with this GPE (_Lxx or _Exx). @@ -361,68 +648,128 @@ acpi_ev_gpe_dispatch ( * If there is neither a handler nor a method, we disable the level to * prevent further events from coming in here. */ - if (gpe_event_info->handler) { - /* Invoke the installed handler (at interrupt level) */ + switch (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) { + case ACPI_GPE_DISPATCH_HANDLER: - gpe_event_info->handler (gpe_event_info->context); + /* + * Invoke the installed handler (at interrupt level) + * Ignore return status for now. TBD: leave GPE disabled on error? + */ + (void)gpe_event_info->dispatch.handler->address(gpe_event_info-> + dispatch. + handler-> + context); /* It is now safe to clear level-triggered events. */ - if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) == ACPI_GPE_LEVEL_TRIGGERED) { - status = acpi_hw_clear_gpe (gpe_event_info); - if (ACPI_FAILURE (status)) { - ACPI_REPORT_ERROR (( - "acpi_ev_gpe_dispatch: Unable to clear GPE[%2X]\n", - gpe_number)); - return_VALUE (ACPI_INTERRUPT_NOT_HANDLED); + if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) == + ACPI_GPE_LEVEL_TRIGGERED) { + status = acpi_hw_clear_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Unable to clear GPE[%2X]", + gpe_number)); + return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); } } - } - else if (gpe_event_info->method_node) { + break; + + case ACPI_GPE_DISPATCH_METHOD: + /* * Disable GPE, so it doesn't keep firing before the method has a * chance to run. */ - status = acpi_hw_disable_gpe (gpe_event_info); - if (ACPI_FAILURE (status)) { - ACPI_REPORT_ERROR (( - "acpi_ev_gpe_dispatch: Unable to disable GPE[%2X]\n", - gpe_number)); - return_VALUE (ACPI_INTERRUPT_NOT_HANDLED); + status = acpi_ev_disable_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Unable to disable GPE[%2X]", + gpe_number)); + return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); } /* * Execute the method associated with the GPE * NOTE: Level-triggered GPEs are cleared after the method completes. */ - if (ACPI_FAILURE (acpi_os_queue_for_execution (OSD_PRIORITY_GPE, - acpi_ev_asynch_execute_gpe_method, - gpe_event_info))) { - ACPI_REPORT_ERROR (( - "acpi_ev_gpe_dispatch: Unable to queue handler for GPE[%2X], event is disabled\n", - gpe_number)); + status = acpi_os_execute(OSL_GPE_HANDLER, + acpi_ev_asynch_execute_gpe_method, + gpe_event_info); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Unable to queue handler for GPE[%2X] - event disabled", + gpe_number)); } - } - else { + break; + + default: + /* No handler or method to run! */ - ACPI_REPORT_ERROR (( - "acpi_ev_gpe_dispatch: No handler or method for GPE[%2X], disabling event\n", - gpe_number)); + ACPI_ERROR((AE_INFO, + "No handler or method for GPE[%2X], disabling event", + gpe_number)); /* * Disable the GPE. The GPE will remain disabled until the ACPI * Core Subsystem is restarted, or a handler is installed. */ - status = acpi_hw_disable_gpe (gpe_event_info); - if (ACPI_FAILURE (status)) { - ACPI_REPORT_ERROR (( - "acpi_ev_gpe_dispatch: Unable to disable GPE[%2X]\n", - gpe_number)); - return_VALUE (ACPI_INTERRUPT_NOT_HANDLED); + status = acpi_ev_disable_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Unable to disable GPE[%2X]", + gpe_number)); + return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); } + break; } - return_VALUE (ACPI_INTERRUPT_HANDLED); + return_UINT32(ACPI_INTERRUPT_HANDLED); } +#ifdef ACPI_GPE_NOTIFY_CHECK +/******************************************************************************* + * TBD: NOT USED, PROTOTYPE ONLY AND WILL PROBABLY BE REMOVED + * + * FUNCTION: acpi_ev_check_for_wake_only_gpe + * + * PARAMETERS: gpe_event_info - info for this GPE + * + * RETURN: Status + * + * DESCRIPTION: Determine if a a GPE is "wake-only". + * + * Called from Notify() code in interpreter when a "DeviceWake" + * Notify comes in. + * + ******************************************************************************/ + +acpi_status +acpi_ev_check_for_wake_only_gpe(struct acpi_gpe_event_info *gpe_event_info) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_check_for_wake_only_gpe); + + if ((gpe_event_info) && /* Only >0 for _Lxx/_Exx */ + ((gpe_event_info->flags & ACPI_GPE_SYSTEM_MASK) == ACPI_GPE_SYSTEM_RUNNING)) { /* System state at GPE time */ + /* This must be a wake-only GPE, disable it */ + + status = acpi_ev_disable_gpe(gpe_event_info); + + /* Set GPE to wake-only. Do not change wake disabled/enabled status */ + + acpi_ev_set_gpe_type(gpe_event_info, ACPI_GPE_TYPE_WAKE); + + ACPI_INFO((AE_INFO, + "GPE %p was updated from wake/run to wake-only", + gpe_event_info)); + + /* This was a wake-only GPE */ + + return_ACPI_STATUS(AE_WAKE_ONLY_GPE); + } + + return_ACPI_STATUS(AE_OK); +} +#endif