diff options
Diffstat (limited to 'drivers/acpi/namespace/nsxfname.c')
| -rw-r--r-- | drivers/acpi/namespace/nsxfname.c | 360 |
1 files changed, 0 insertions, 360 deletions
diff --git a/drivers/acpi/namespace/nsxfname.c b/drivers/acpi/namespace/nsxfname.c deleted file mode 100644 index 7d5bfa9e9fe9..000000000000 --- a/drivers/acpi/namespace/nsxfname.c +++ /dev/null @@ -1,360 +0,0 @@ -/****************************************************************************** - * - * Module Name: nsxfname - Public interfaces to the ACPI subsystem - * ACPI Namespace oriented interfaces - * - *****************************************************************************/ - -/* - * 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/accommon.h> -#include <acpi/acnamesp.h> - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsxfname") - -/****************************************************************************** - * - * FUNCTION: acpi_get_handle - * - * PARAMETERS: Parent - Object to search under (search scope). - * Pathname - Pointer to an asciiz string containing the - * name - * ret_handle - Where the return handle is returned - * - * RETURN: Status - * - * DESCRIPTION: This routine will search for a caller specified name in the - * name space. The caller can restrict the search region by - * specifying a non NULL parent. The parent value is itself a - * namespace handle. - * - ******************************************************************************/ -acpi_status -acpi_get_handle(acpi_handle parent, - acpi_string pathname, acpi_handle * ret_handle) -{ - acpi_status status; - struct acpi_namespace_node *node = NULL; - struct acpi_namespace_node *prefix_node = NULL; - - ACPI_FUNCTION_ENTRY(); - - /* Parameter Validation */ - - if (!ret_handle || !pathname) { - return (AE_BAD_PARAMETER); - } - - /* Convert a parent handle to a prefix node */ - - if (parent) { - prefix_node = acpi_ns_map_handle_to_node(parent); - if (!prefix_node) { - return (AE_BAD_PARAMETER); - } - } - - /* - * Valid cases are: - * 1) Fully qualified pathname - * 2) Parent + Relative pathname - * - * Error for <null Parent + relative path> - */ - if (acpi_ns_valid_root_prefix(pathname[0])) { - - /* Pathname is fully qualified (starts with '\') */ - - /* Special case for root-only, since we can't search for it */ - - if (!ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH)) { - *ret_handle = - acpi_ns_convert_entry_to_handle(acpi_gbl_root_node); - return (AE_OK); - } - } else if (!prefix_node) { - - /* Relative path with null prefix is disallowed */ - - return (AE_BAD_PARAMETER); - } - - /* Find the Node and convert to a handle */ - - status = - acpi_ns_get_node(prefix_node, pathname, ACPI_NS_NO_UPSEARCH, &node); - if (ACPI_SUCCESS(status)) { - *ret_handle = acpi_ns_convert_entry_to_handle(node); - } - - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_handle) - -/****************************************************************************** - * - * FUNCTION: acpi_get_name - * - * PARAMETERS: Handle - Handle to be converted to a pathname - * name_type - Full pathname or single segment - * Buffer - Buffer for returned path - * - * RETURN: Pointer to a string containing the fully qualified Name. - * - * DESCRIPTION: This routine returns the fully qualified name associated with - * the Handle parameter. This and the acpi_pathname_to_handle are - * complementary functions. - * - ******************************************************************************/ -acpi_status -acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer) -{ - acpi_status status; - struct acpi_namespace_node *node; - - /* Parameter validation */ - - if (name_type > ACPI_NAME_TYPE_MAX) { - return (AE_BAD_PARAMETER); - } - - status = acpi_ut_validate_buffer(buffer); - if (ACPI_FAILURE(status)) { - return (status); - } - - if (name_type == ACPI_FULL_PATHNAME) { - - /* Get the full pathname (From the namespace root) */ - - status = acpi_ns_handle_to_pathname(handle, buffer); - return (status); - } - - /* - * Wants the single segment ACPI name. - * Validate handle and convert to a namespace Node - */ - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - node = acpi_ns_map_handle_to_node(handle); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Validate/Allocate/Clear caller buffer */ - - status = acpi_ut_initialize_buffer(buffer, ACPI_PATH_SEGMENT_LENGTH); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - /* Just copy the ACPI name from the Node and zero terminate it */ - - ACPI_STRNCPY(buffer->pointer, acpi_ut_get_node_name(node), - ACPI_NAME_SIZE); - ((char *)buffer->pointer)[ACPI_NAME_SIZE] = 0; - status = AE_OK; - - unlock_and_exit: - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_name) - -/****************************************************************************** - * - * FUNCTION: acpi_get_object_info - * - * PARAMETERS: Handle - Object Handle - * Buffer - Where the info is returned - * - * RETURN: Status - * - * DESCRIPTION: Returns information about an object as gleaned from the - * namespace node and possibly by running several standard - * control methods (Such as in the case of a device.) - * - ******************************************************************************/ -acpi_status -acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer) -{ - acpi_status status; - struct acpi_namespace_node *node; - struct acpi_device_info *info; - struct acpi_device_info *return_info; - struct acpi_compatible_id_list *cid_list = NULL; - acpi_size size; - - /* Parameter validation */ - - if (!handle || !buffer) { - return (AE_BAD_PARAMETER); - } - - status = acpi_ut_validate_buffer(buffer); - if (ACPI_FAILURE(status)) { - return (status); - } - - info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info)); - if (!info) { - return (AE_NO_MEMORY); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - node = acpi_ns_map_handle_to_node(handle); - if (!node) { - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - status = AE_BAD_PARAMETER; - goto cleanup; - } - - /* Init return structure */ - - size = sizeof(struct acpi_device_info); - - info->type = node->type; - info->name = node->name.integer; - info->valid = 0; - - if (node->type == ACPI_TYPE_METHOD) { - info->param_count = node->object->method.param_count; - } - - status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* If not a device, we are all done */ - - if (info->type == ACPI_TYPE_DEVICE) { - /* - * Get extra info for ACPI Devices objects only: - * Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods. - * - * Note: none of these methods are required, so they may or may - * not be present for this device. The Info->Valid bitfield is used - * to indicate which methods were found and ran successfully. - */ - - /* Execute the Device._HID method */ - - status = acpi_ut_execute_HID(node, &info->hardware_id); - if (ACPI_SUCCESS(status)) { - info->valid |= ACPI_VALID_HID; - } - - /* Execute the Device._UID method */ - - status = acpi_ut_execute_UID(node, &info->unique_id); - if (ACPI_SUCCESS(status)) { - info->valid |= ACPI_VALID_UID; - } - - /* Execute the Device._CID method */ - - status = acpi_ut_execute_CID(node, &cid_list); - if (ACPI_SUCCESS(status)) { - size += cid_list->size; - info->valid |= ACPI_VALID_CID; - } - - /* Execute the Device._STA method */ - - status = acpi_ut_execute_STA(node, &info->current_status); - if (ACPI_SUCCESS(status)) { - info->valid |= ACPI_VALID_STA; - } - - /* Execute the Device._ADR method */ - - status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, node, - &info->address); - if (ACPI_SUCCESS(status)) { - info->valid |= ACPI_VALID_ADR; - } - - /* Execute the Device._sx_d methods */ - - status = acpi_ut_execute_sxds(node, info->highest_dstates); - if (ACPI_SUCCESS(status)) { - info->valid |= ACPI_VALID_SXDS; - } - } - - /* Validate/Allocate/Clear caller buffer */ - - status = acpi_ut_initialize_buffer(buffer, size); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* Populate the return buffer */ - - return_info = buffer->pointer; - ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info)); - - if (cid_list) { - ACPI_MEMCPY(&return_info->compatibility_id, cid_list, - cid_list->size); - } - - cleanup: - ACPI_FREE(info); - if (cid_list) { - ACPI_FREE(cid_list); - } - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_object_info) |