diff options
Diffstat (limited to 'drivers/acpi/events/evxfregn.c')
| -rw-r--r-- | drivers/acpi/events/evxfregn.c | 253 |
1 files changed, 0 insertions, 253 deletions
diff --git a/drivers/acpi/events/evxfregn.c b/drivers/acpi/events/evxfregn.c deleted file mode 100644 index e8750807e57d..000000000000 --- a/drivers/acpi/events/evxfregn.c +++ /dev/null @@ -1,253 +0,0 @@ -/****************************************************************************** - * - * Module Name: evxfregn - External Interfaces, ACPI Operation Regions and - * Address Spaces. - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * 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 <acpi/acpi.h> -#include <acpi/acnamesp.h> -#include <acpi/acevents.h> - -#define _COMPONENT ACPI_EVENTS -ACPI_MODULE_NAME("evxfregn") - -/******************************************************************************* - * - * FUNCTION: acpi_install_address_space_handler - * - * PARAMETERS: Device - Handle for the device - * space_id - The address space ID - * Handler - Address of the handler - * Setup - Address of the setup function - * Context - Value passed to the handler on each access - * - * RETURN: Status - * - * DESCRIPTION: Install a handler for all op_regions of a given space_id. - * - ******************************************************************************/ -acpi_status -acpi_install_address_space_handler(acpi_handle device, - acpi_adr_space_type space_id, - acpi_adr_space_handler handler, - acpi_adr_space_setup setup, void *context) -{ - struct acpi_namespace_node *node; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_install_address_space_handler); - - /* Parameter validation */ - - if (!device) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Convert and validate the device handle */ - - node = acpi_ns_map_handle_to_node(device); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Install the handler for all Regions for this Space ID */ - - status = - acpi_ev_install_space_handler(node, space_id, handler, setup, - context); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - /* Run all _REG methods for this address space */ - - status = acpi_ev_execute_reg_methods(node, space_id); - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_install_address_space_handler) - -/******************************************************************************* - * - * FUNCTION: acpi_remove_address_space_handler - * - * PARAMETERS: Device - Handle for the device - * space_id - The address space ID - * Handler - Address of the handler - * - * RETURN: Status - * - * DESCRIPTION: Remove a previously installed handler. - * - ******************************************************************************/ -acpi_status -acpi_remove_address_space_handler(acpi_handle device, - acpi_adr_space_type space_id, - acpi_adr_space_handler handler) -{ - union acpi_operand_object *obj_desc; - union acpi_operand_object *handler_obj; - union acpi_operand_object *region_obj; - union acpi_operand_object **last_obj_ptr; - struct acpi_namespace_node *node; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_remove_address_space_handler); - - /* Parameter validation */ - - if (!device) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Convert and validate the device handle */ - - node = acpi_ns_map_handle_to_node(device); - if (!node || - ((node->type != ACPI_TYPE_DEVICE) && - (node->type != ACPI_TYPE_PROCESSOR) && - (node->type != ACPI_TYPE_THERMAL) && - (node != acpi_gbl_root_node))) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Make sure the internal object exists */ - - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - status = AE_NOT_EXIST; - goto unlock_and_exit; - } - - /* Find the address handler the user requested */ - - handler_obj = obj_desc->device.handler; - last_obj_ptr = &obj_desc->device.handler; - while (handler_obj) { - - /* We have a handler, see if user requested this one */ - - if (handler_obj->address_space.space_id == space_id) { - - /* Handler must be the same as the installed handler */ - - if (handler_obj->address_space.handler != handler) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Matched space_id, first dereference this in the Regions */ - - ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "Removing address handler %p(%p) for region %s on Device %p(%p)\n", - handler_obj, handler, - acpi_ut_get_region_name(space_id), - node, obj_desc)); - - region_obj = handler_obj->address_space.region_list; - - /* Walk the handler's region list */ - - while (region_obj) { - /* - * First disassociate the handler from the region. - * - * NOTE: this doesn't mean that the region goes away - * The region is just inaccessible as indicated to - * the _REG method - */ - acpi_ev_detach_region(region_obj, TRUE); - - /* - * Walk the list: Just grab the head because the - * detach_region removed the previous head. - */ - region_obj = - handler_obj->address_space.region_list; - - } - - /* Remove this Handler object from the list */ - - *last_obj_ptr = handler_obj->address_space.next; - - /* Now we can delete the handler object */ - - acpi_ut_remove_reference(handler_obj); - goto unlock_and_exit; - } - - /* Walk the linked list of handlers */ - - last_obj_ptr = &handler_obj->address_space.next; - handler_obj = handler_obj->address_space.next; - } - - /* The handler does not exist */ - - ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "Unable to remove address handler %p for %s(%X), DevNode %p, obj %p\n", - handler, acpi_ut_get_region_name(space_id), space_id, - node, obj_desc)); - - status = AE_NOT_EXIST; - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_remove_address_space_handler) |