diff options
Diffstat (limited to 'drivers/acpi/events/evxfevnt.c')
| -rw-r--r-- | drivers/acpi/events/evxfevnt.c | 783 |
1 files changed, 0 insertions, 783 deletions
diff --git a/drivers/acpi/events/evxfevnt.c b/drivers/acpi/events/evxfevnt.c deleted file mode 100644 index f337dc2cc56..00000000000 --- a/drivers/acpi/events/evxfevnt.c +++ /dev/null @@ -1,783 +0,0 @@ -/****************************************************************************** - * - * Module Name: evxfevnt - External Interfaces, ACPI event disable/enable - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2005, R. Byron Moore - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include <linux/module.h> - -#include <acpi/acpi.h> -#include <acpi/acevents.h> -#include <acpi/acnamesp.h> - -#define _COMPONENT ACPI_EVENTS - ACPI_MODULE_NAME ("evxfevnt") - - -/******************************************************************************* - * - * FUNCTION: acpi_enable - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Transfers the system into ACPI mode. - * - ******************************************************************************/ - -acpi_status -acpi_enable ( - void) -{ - acpi_status status = AE_OK; - - - ACPI_FUNCTION_TRACE ("acpi_enable"); - - - /* Make sure we have the FADT*/ - - if (!acpi_gbl_FADT) { - ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "No FADT information present!\n")); - return_ACPI_STATUS (AE_NO_ACPI_TABLES); - } - - if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) { - ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "System is already in ACPI mode\n")); - } - else { - /* Transition to ACPI mode */ - - status = acpi_hw_set_mode (ACPI_SYS_MODE_ACPI); - if (ACPI_FAILURE (status)) { - ACPI_REPORT_ERROR (("Could not transition to ACPI mode.\n")); - return_ACPI_STATUS (status); - } - - ACPI_DEBUG_PRINT ((ACPI_DB_INIT, - "Transition to ACPI mode successful\n")); - } - - return_ACPI_STATUS (status); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_disable - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Transfers the system into LEGACY (non-ACPI) mode. - * - ******************************************************************************/ - -acpi_status -acpi_disable ( - void) -{ - acpi_status status = AE_OK; - - - ACPI_FUNCTION_TRACE ("acpi_disable"); - - - if (!acpi_gbl_FADT) { - ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "No FADT information present!\n")); - return_ACPI_STATUS (AE_NO_ACPI_TABLES); - } - - if (acpi_hw_get_mode() == ACPI_SYS_MODE_LEGACY) { - ACPI_DEBUG_PRINT ((ACPI_DB_INIT, - "System is already in legacy (non-ACPI) mode\n")); - } - else { - /* Transition to LEGACY mode */ - - status = acpi_hw_set_mode (ACPI_SYS_MODE_LEGACY); - - if (ACPI_FAILURE (status)) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Could not exit ACPI mode to legacy mode")); - return_ACPI_STATUS (status); - } - - ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "ACPI mode disabled\n")); - } - - return_ACPI_STATUS (status); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_enable_event - * - * PARAMETERS: Event - The fixed eventto be enabled - * Flags - Reserved - * - * RETURN: Status - * - * DESCRIPTION: Enable an ACPI event (fixed) - * - ******************************************************************************/ - -acpi_status -acpi_enable_event ( - u32 event, - u32 flags) -{ - acpi_status status = AE_OK; - u32 value; - - - ACPI_FUNCTION_TRACE ("acpi_enable_event"); - - - /* Decode the Fixed Event */ - - if (event > ACPI_EVENT_MAX) { - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - /* - * Enable the requested fixed event (by writing a one to the - * enable register bit) - */ - status = acpi_set_register (acpi_gbl_fixed_event_info[event].enable_register_id, - 1, ACPI_MTX_LOCK); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); - } - - /* Make sure that the hardware responded */ - - status = acpi_get_register (acpi_gbl_fixed_event_info[event].enable_register_id, - &value, ACPI_MTX_LOCK); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); - } - - if (value != 1) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Could not enable %s event\n", acpi_ut_get_event_name (event))); - return_ACPI_STATUS (AE_NO_HARDWARE_RESPONSE); - } - - return_ACPI_STATUS (status); -} -EXPORT_SYMBOL(acpi_enable_event); - - -/******************************************************************************* - * - * FUNCTION: acpi_set_gpe_type - * - * PARAMETERS: gpe_device - Parent GPE Device - * gpe_number - GPE level within the GPE block - * Type - New GPE type - * - * RETURN: Status - * - * DESCRIPTION: Set the type of an individual GPE - * - ******************************************************************************/ - -acpi_status -acpi_set_gpe_type ( - acpi_handle gpe_device, - u32 gpe_number, - u8 type) -{ - acpi_status status = AE_OK; - struct acpi_gpe_event_info *gpe_event_info; - - - ACPI_FUNCTION_TRACE ("acpi_set_gpe_type"); - - - /* Ensure that we have a valid GPE number */ - - gpe_event_info = acpi_ev_get_gpe_event_info (gpe_device, gpe_number); - if (!gpe_event_info) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - if ((gpe_event_info->flags & ACPI_GPE_TYPE_MASK) == type) { - return_ACPI_STATUS (AE_OK); - } - - /* Set the new type (will disable GPE if currently enabled) */ - - status = acpi_ev_set_gpe_type (gpe_event_info, type); - -unlock_and_exit: - return_ACPI_STATUS (status); -} -EXPORT_SYMBOL(acpi_set_gpe_type); - - -/******************************************************************************* - * - * FUNCTION: acpi_enable_gpe - * - * PARAMETERS: gpe_device - Parent GPE Device - * gpe_number - GPE level within the GPE block - * Flags - Just enable, or also wake enable? - * Called from ISR or not - * - * RETURN: Status - * - * DESCRIPTION: Enable an ACPI event (general purpose) - * - ******************************************************************************/ - -acpi_status -acpi_enable_gpe ( - acpi_handle gpe_device, - u32 gpe_number, - u32 flags) -{ - acpi_status status = AE_OK; - struct acpi_gpe_event_info *gpe_event_info; - - - ACPI_FUNCTION_TRACE ("acpi_enable_gpe"); - - - /* Use semaphore lock if not executing at interrupt level */ - - if (flags & ACPI_NOT_ISR) { - status = acpi_ut_acquire_mutex (ACPI_MTX_EVENTS); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); - } - } - - /* Ensure that we have a valid GPE number */ - - gpe_event_info = acpi_ev_get_gpe_event_info (gpe_device, gpe_number); - if (!gpe_event_info) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Perform the enable */ - - status = acpi_ev_enable_gpe (gpe_event_info, TRUE); - -unlock_and_exit: - if (flags & ACPI_NOT_ISR) { - (void) acpi_ut_release_mutex (ACPI_MTX_EVENTS); - } - return_ACPI_STATUS (status); -} -EXPORT_SYMBOL(acpi_enable_gpe); - - -/******************************************************************************* - * - * FUNCTION: acpi_disable_gpe - * - * PARAMETERS: gpe_device - Parent GPE Device - * gpe_number - GPE level within the GPE block - * Flags - Just disable, or also wake disable? - * Called from ISR or not - * - * RETURN: Status - * - * DESCRIPTION: Disable an ACPI event (general purpose) - * - ******************************************************************************/ - -acpi_status -acpi_disable_gpe ( - acpi_handle gpe_device, - u32 gpe_number, - u32 flags) -{ - acpi_status status = AE_OK; - struct acpi_gpe_event_info *gpe_event_info; - - - ACPI_FUNCTION_TRACE ("acpi_disable_gpe"); - - - /* Use semaphore lock if not executing at interrupt level */ - - if (flags & ACPI_NOT_ISR) { - status = acpi_ut_acquire_mutex (ACPI_MTX_EVENTS); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); - } - } - - /* Ensure that we have a valid GPE number */ - - gpe_event_info = acpi_ev_get_gpe_event_info (gpe_device, gpe_number); - if (!gpe_event_info) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - status = acpi_ev_disable_gpe (gpe_event_info); - -unlock_and_exit: - if (flags & ACPI_NOT_ISR) { - (void) acpi_ut_release_mutex (ACPI_MTX_EVENTS); - } - return_ACPI_STATUS (status); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_disable_event - * - * PARAMETERS: Event - The fixed eventto be enabled - * Flags - Reserved - * - * RETURN: Status - * - * DESCRIPTION: Disable an ACPI event (fixed) - * - ******************************************************************************/ - -acpi_status -acpi_disable_event ( - u32 event, - u32 flags) -{ - acpi_status status = AE_OK; - u32 value; - - - ACPI_FUNCTION_TRACE ("acpi_disable_event"); - - - /* Decode the Fixed Event */ - - if (event > ACPI_EVENT_MAX) { - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - /* - * Disable the requested fixed event (by writing a zero to the - * enable register bit) - */ - status = acpi_set_register (acpi_gbl_fixed_event_info[event].enable_register_id, - 0, ACPI_MTX_LOCK); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); - } - - status = acpi_get_register (acpi_gbl_fixed_event_info[event].enable_register_id, - &value, ACPI_MTX_LOCK); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); - } - - if (value != 0) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Could not disable %s events\n", acpi_ut_get_event_name (event))); - return_ACPI_STATUS (AE_NO_HARDWARE_RESPONSE); - } - - return_ACPI_STATUS (status); -} -EXPORT_SYMBOL(acpi_disable_event); - - -/******************************************************************************* - * - * FUNCTION: acpi_clear_event - * - * PARAMETERS: Event - The fixed event to be cleared - * - * RETURN: Status - * - * DESCRIPTION: Clear an ACPI event (fixed) - * - ******************************************************************************/ - -acpi_status -acpi_clear_event ( - u32 event) -{ - acpi_status status = AE_OK; - - - ACPI_FUNCTION_TRACE ("acpi_clear_event"); - - - /* Decode the Fixed Event */ - - if (event > ACPI_EVENT_MAX) { - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - /* - * Clear the requested fixed event (By writing a one to the - * status register bit) - */ - status = acpi_set_register (acpi_gbl_fixed_event_info[event].status_register_id, - 1, ACPI_MTX_LOCK); - - return_ACPI_STATUS (status); -} -EXPORT_SYMBOL(acpi_clear_event); - - -/******************************************************************************* - * - * FUNCTION: acpi_clear_gpe - * - * PARAMETERS: gpe_device - Parent GPE Device - * gpe_number - GPE level within the GPE block - * Flags - Called from an ISR or not - * - * RETURN: Status - * - * DESCRIPTION: Clear an ACPI event (general purpose) - * - ******************************************************************************/ - -acpi_status -acpi_clear_gpe ( - acpi_handle gpe_device, - u32 gpe_number, - u32 flags) -{ - acpi_status status = AE_OK; - struct acpi_gpe_event_info *gpe_event_info; - - - ACPI_FUNCTION_TRACE ("acpi_clear_gpe"); - - - /* Use semaphore lock if not executing at interrupt level */ - - if (flags & ACPI_NOT_ISR) { - status = acpi_ut_acquire_mutex (ACPI_MTX_EVENTS); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); - } - } - - /* Ensure that we have a valid GPE number */ - - gpe_event_info = acpi_ev_get_gpe_event_info (gpe_device, gpe_number); - if (!gpe_event_info) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - status = acpi_hw_clear_gpe (gpe_event_info); - -unlock_and_exit: - if (flags & ACPI_NOT_ISR) { - (void) acpi_ut_release_mutex (ACPI_MTX_EVENTS); - } - return_ACPI_STATUS (status); -} - - -#ifdef ACPI_FUTURE_USAGE -/******************************************************************************* - * - * FUNCTION: acpi_get_event_status - * - * PARAMETERS: Event - The fixed event - * event_status - Where the current status of the event will - * be returned - * - * RETURN: Status - * - * DESCRIPTION: Obtains and returns the current status of the event - * - ******************************************************************************/ - -acpi_status -acpi_get_event_status ( - u32 event, - acpi_event_status *event_status) -{ - acpi_status status = AE_OK; - - - ACPI_FUNCTION_TRACE ("acpi_get_event_status"); - - - if (!event_status) { - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - /* Decode the Fixed Event */ - - if (event > ACPI_EVENT_MAX) { - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - /* Get the status of the requested fixed event */ - - status = acpi_get_register (acpi_gbl_fixed_event_info[event].status_register_id, - event_status, ACPI_MTX_LOCK); - - return_ACPI_STATUS (status); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_get_gpe_status - * - * PARAMETERS: gpe_device - Parent GPE Device - * gpe_number - GPE level within the GPE block - * Flags - Called from an ISR or not - * event_status - Where the current status of the event will - * be returned - * - * RETURN: Status - * - * DESCRIPTION: Get status of an event (general purpose) - * - ******************************************************************************/ - -acpi_status -acpi_get_gpe_status ( - acpi_handle gpe_device, - u32 gpe_number, - u32 flags, - acpi_event_status *event_status) -{ - acpi_status status = AE_OK; - struct acpi_gpe_event_info *gpe_event_info; - - - ACPI_FUNCTION_TRACE ("acpi_get_gpe_status"); - - - /* Use semaphore lock if not executing at interrupt level */ - - if (flags & ACPI_NOT_ISR) { - status = acpi_ut_acquire_mutex (ACPI_MTX_EVENTS); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); - } - } - - /* Ensure that we have a valid GPE number */ - - gpe_event_info = acpi_ev_get_gpe_event_info (gpe_device, gpe_number); - if (!gpe_event_info) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Obtain status on the requested GPE number */ - - status = acpi_hw_get_gpe_status (gpe_event_info, event_status); - -unlock_and_exit: - if (flags & ACPI_NOT_ISR) { - (void) acpi_ut_release_mutex (ACPI_MTX_EVENTS); - } - return_ACPI_STATUS (status); -} -#endif /* ACPI_FUTURE_USAGE */ - - -/******************************************************************************* - * - * FUNCTION: acpi_install_gpe_block - * - * PARAMETERS: gpe_device - Handle to the parent GPE Block Device - * gpe_block_address - Address and space_iD - * register_count - Number of GPE register pairs in the block - * interrupt_level - H/W interrupt for the block - * - * RETURN: Status - * - * DESCRIPTION: Create and Install a block of GPE registers - * - ******************************************************************************/ - -acpi_status -acpi_install_gpe_block ( - acpi_handle gpe_device, - struct acpi_generic_address *gpe_block_address, - u32 register_count, - u32 interrupt_level) -{ - acpi_status status; - union acpi_operand_object *obj_desc; - struct acpi_namespace_node *node; - struct acpi_gpe_block_info *gpe_block; - - - ACPI_FUNCTION_TRACE ("acpi_install_gpe_block"); - - - if ((!gpe_device) || - (!gpe_block_address) || - (!register_count)) { - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE (status)) { - return (status); - } - - node = acpi_ns_map_handle_to_node (gpe_device); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* - * For user-installed GPE Block Devices, the gpe_block_base_number - * is always zero - */ - status = acpi_ev_create_gpe_block (node, gpe_block_address, register_count, - 0, interrupt_level, &gpe_block); - if (ACPI_FAILURE (status)) { - goto unlock_and_exit; - } - - /* Get the device_object attached to the node */ - - obj_desc = acpi_ns_get_attached_object (node); - if (!obj_desc) { - /* No object, create a new one */ - - obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_DEVICE); - if (!obj_desc) { - status = AE_NO_MEMORY; - goto unlock_and_exit; - } - - status = acpi_ns_attach_object (node, obj_desc, ACPI_TYPE_DEVICE); - - /* Remove local reference to the object */ - - acpi_ut_remove_reference (obj_desc); - - if (ACPI_FAILURE (status)) { - goto unlock_and_exit; - } - } - - /* Install the GPE block in the device_object */ - - obj_desc->device.gpe_block = gpe_block; - - -unlock_and_exit: - (void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE); - return_ACPI_STATUS (status); -} -EXPORT_SYMBOL(acpi_install_gpe_block); - - -/******************************************************************************* - * - * FUNCTION: acpi_remove_gpe_block - * - * PARAMETERS: gpe_device - Handle to the parent GPE Block Device - * - * RETURN: Status - * - * DESCRIPTION: Remove a previously installed block of GPE registers - * - ******************************************************************************/ - -acpi_status -acpi_remove_gpe_block ( - acpi_handle gpe_device) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - struct acpi_namespace_node *node; - - - ACPI_FUNCTION_TRACE ("acpi_remove_gpe_block"); - - - if (!gpe_device) { - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE (status)) { - return (status); - } - - node = acpi_ns_map_handle_to_node (gpe_device); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Get the device_object attached to the node */ - - obj_desc = acpi_ns_get_attached_object (node); - if (!obj_desc || - !obj_desc->device.gpe_block) { - return_ACPI_STATUS (AE_NULL_OBJECT); - } - - /* Delete the GPE block (but not the device_object) */ - - status = acpi_ev_delete_gpe_block (obj_desc->device.gpe_block); - if (ACPI_SUCCESS (status)) { - obj_desc->device.gpe_block = NULL; - } - -unlock_and_exit: - (void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE); - return_ACPI_STATUS (status); -} - -EXPORT_SYMBOL(acpi_remove_gpe_block); |