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authorLen Brown <len.brown@intel.com>2009-01-09 00:13:17 -0500
committerLen Brown <len.brown@intel.com>2009-01-09 03:30:47 -0500
commit95b482a8d31116f3f5c2a5089569393234d06385 (patch)
treef32aec8673a285a9d188948be97af3034ee06e93 /drivers/acpi/namespace/nswalk.c
parent6620e0c49f577454b772fb381543d60ae53eb885 (diff)
downloadop-kernel-dev-95b482a8d31116f3f5c2a5089569393234d06385.zip
op-kernel-dev-95b482a8d31116f3f5c2a5089569393234d06385.tar.gz
ACPICA: create acpica/ directory
also, delete sleep/ and delete ACPI_CFLAGS from Makefile Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/namespace/nswalk.c')
-rw-r--r--drivers/acpi/namespace/nswalk.c296
1 files changed, 0 insertions, 296 deletions
diff --git a/drivers/acpi/namespace/nswalk.c b/drivers/acpi/namespace/nswalk.c
deleted file mode 100644
index 71b83e9..0000000
--- a/drivers/acpi/namespace/nswalk.c
+++ /dev/null
@@ -1,296 +0,0 @@
-/******************************************************************************
- *
- * Module Name: nswalk - Functions for walking the ACPI namespace
- *
- *****************************************************************************/
-
-/*
- * 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("nswalk")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_get_next_node
- *
- * PARAMETERS: Type - Type of node to be searched for
- * parent_node - Parent node whose children we are
- * getting
- * child_node - Previous child that was found.
- * The NEXT child will be returned
- *
- * RETURN: struct acpi_namespace_node - Pointer to the NEXT child or NULL if
- * none is found.
- *
- * DESCRIPTION: Return the next peer node within the namespace. If Handle
- * is valid, Scope is ignored. Otherwise, the first node
- * within Scope is returned.
- *
- ******************************************************************************/
-struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type, struct acpi_namespace_node
- *parent_node, struct acpi_namespace_node
- *child_node)
-{
- struct acpi_namespace_node *next_node = NULL;
-
- ACPI_FUNCTION_ENTRY();
-
- if (!child_node) {
-
- /* It's really the parent's _scope_ that we want */
-
- next_node = parent_node->child;
- }
-
- else {
- /* Start search at the NEXT node */
-
- next_node = acpi_ns_get_next_valid_node(child_node);
- }
-
- /* If any type is OK, we are done */
-
- if (type == ACPI_TYPE_ANY) {
-
- /* next_node is NULL if we are at the end-of-list */
-
- return (next_node);
- }
-
- /* Must search for the node -- but within this scope only */
-
- while (next_node) {
-
- /* If type matches, we are done */
-
- if (next_node->type == type) {
- return (next_node);
- }
-
- /* Otherwise, move on to the next node */
-
- next_node = acpi_ns_get_next_valid_node(next_node);
- }
-
- /* Not found */
-
- return (NULL);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_walk_namespace
- *
- * PARAMETERS: Type - acpi_object_type to search for
- * start_node - Handle in namespace where search begins
- * max_depth - Depth to which search is to reach
- * Flags - Whether to unlock the NS before invoking
- * the callback routine
- * user_function - Called when an object of "Type" is found
- * Context - Passed to user function
- * return_value - from the user_function if terminated early.
- * Otherwise, returns NULL.
- * RETURNS: Status
- *
- * DESCRIPTION: Performs a modified depth-first walk of the namespace tree,
- * starting (and ending) at the node specified by start_handle.
- * The user_function is called whenever a node that matches
- * the type parameter is found. If the user function returns
- * a non-zero value, the search is terminated immediately and this
- * value is returned to the caller.
- *
- * The point of this procedure is to provide a generic namespace
- * walk routine that can be called from multiple places to
- * provide multiple services; the User Function can be tailored
- * to each task, whether it is a print function, a compare
- * function, etc.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_walk_namespace(acpi_object_type type,
- acpi_handle start_node,
- u32 max_depth,
- u32 flags,
- acpi_walk_callback user_function,
- void *context, void **return_value)
-{
- acpi_status status;
- acpi_status mutex_status;
- struct acpi_namespace_node *child_node;
- struct acpi_namespace_node *parent_node;
- acpi_object_type child_type;
- u32 level;
-
- ACPI_FUNCTION_TRACE(ns_walk_namespace);
-
- /* Special case for the namespace Root Node */
-
- if (start_node == ACPI_ROOT_OBJECT) {
- start_node = acpi_gbl_root_node;
- }
-
- /* Null child means "get first node" */
-
- parent_node = start_node;
- child_node = NULL;
- child_type = ACPI_TYPE_ANY;
- level = 1;
-
- /*
- * Traverse the tree of nodes until we bubble back up to where we
- * started. When Level is zero, the loop is done because we have
- * bubbled up to (and passed) the original parent handle (start_entry)
- */
- while (level > 0) {
-
- /* Get the next node in this scope. Null if not found */
-
- status = AE_OK;
- child_node =
- acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node,
- child_node);
- if (child_node) {
-
- /* Found next child, get the type if we are not searching for ANY */
-
- if (type != ACPI_TYPE_ANY) {
- child_type = child_node->type;
- }
-
- /*
- * Ignore all temporary namespace nodes (created during control
- * method execution) unless told otherwise. These temporary nodes
- * can cause a race condition because they can be deleted during the
- * execution of the user function (if the namespace is unlocked before
- * invocation of the user function.) Only the debugger namespace dump
- * will examine the temporary nodes.
- */
- if ((child_node->flags & ANOBJ_TEMPORARY) &&
- !(flags & ACPI_NS_WALK_TEMP_NODES)) {
- status = AE_CTRL_DEPTH;
- }
-
- /* Type must match requested type */
-
- else if (child_type == type) {
- /*
- * Found a matching node, invoke the user callback function.
- * Unlock the namespace if flag is set.
- */
- if (flags & ACPI_NS_WALK_UNLOCK) {
- mutex_status =
- acpi_ut_release_mutex
- (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(mutex_status)) {
- return_ACPI_STATUS
- (mutex_status);
- }
- }
-
- status =
- user_function(child_node, level, context,
- return_value);
-
- if (flags & ACPI_NS_WALK_UNLOCK) {
- mutex_status =
- acpi_ut_acquire_mutex
- (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(mutex_status)) {
- return_ACPI_STATUS
- (mutex_status);
- }
- }
-
- switch (status) {
- case AE_OK:
- case AE_CTRL_DEPTH:
-
- /* Just keep going */
- break;
-
- case AE_CTRL_TERMINATE:
-
- /* Exit now, with OK status */
-
- return_ACPI_STATUS(AE_OK);
-
- default:
-
- /* All others are valid exceptions */
-
- return_ACPI_STATUS(status);
- }
- }
-
- /*
- * Depth first search: Attempt to go down another level in the
- * namespace if we are allowed to. Don't go any further if we have
- * reached the caller specified maximum depth or if the user
- * function has specified that the maximum depth has been reached.
- */
- if ((level < max_depth) && (status != AE_CTRL_DEPTH)) {
- if (acpi_ns_get_next_node
- (ACPI_TYPE_ANY, child_node, NULL)) {
-
- /* There is at least one child of this node, visit it */
-
- level++;
- parent_node = child_node;
- child_node = NULL;
- }
- }
- } else {
- /*
- * No more children of this node (acpi_ns_get_next_node failed), go
- * back upwards in the namespace tree to the node's parent.
- */
- level--;
- child_node = parent_node;
- parent_node = acpi_ns_get_parent_node(parent_node);
- }
- }
-
- /* Complete walk, not terminated by user function */
-
- return_ACPI_STATUS(AE_OK);
-}
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