diff options
Diffstat (limited to 'drivers/acpi/namespace')
| -rw-r--r-- | drivers/acpi/namespace/Makefile | 12 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nsaccess.c | 676 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nsalloc.c | 497 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nsdump.c | 709 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nsdumpdv.c | 141 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nseval.c | 278 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nsinit.c | 593 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nsload.c | 315 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nsnames.c | 265 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nsobject.c | 441 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nsparse.c | 204 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nspredef.c | 1065 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nssearch.c | 415 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nsutils.c | 997 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nswalk.c | 296 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nsxfeval.c | 812 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nsxfname.c | 360 | ||||
| -rw-r--r-- | drivers/acpi/namespace/nsxfobj.c | 287 |
18 files changed, 0 insertions, 8363 deletions
diff --git a/drivers/acpi/namespace/Makefile b/drivers/acpi/namespace/Makefile deleted file mode 100644 index 371a2daf837..00000000000 --- a/drivers/acpi/namespace/Makefile +++ /dev/null @@ -1,12 +0,0 @@ -# -# Makefile for all Linux ACPI interpreter subdirectories -# - -obj-y := nsaccess.o nsload.o nssearch.o nsxfeval.o \ - nsalloc.o nseval.o nsnames.o nsutils.o nsxfname.o \ - nsdump.o nsinit.o nsobject.o nswalk.o nsxfobj.o \ - nsparse.o nspredef.o - -obj-$(ACPI_FUTURE_USAGE) += nsdumpdv.o - -EXTRA_CFLAGS += $(ACPI_CFLAGS) diff --git a/drivers/acpi/namespace/nsaccess.c b/drivers/acpi/namespace/nsaccess.c deleted file mode 100644 index 7954640e69c..00000000000 --- a/drivers/acpi/namespace/nsaccess.c +++ /dev/null @@ -1,676 +0,0 @@ -/******************************************************************************* - * - * Module Name: nsaccess - Top-level functions for accessing 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/amlcode.h> -#include <acpi/acnamesp.h> -#include <acpi/acdispat.h> - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsaccess") - -/******************************************************************************* - * - * FUNCTION: acpi_ns_root_initialize - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Allocate and initialize the default root named objects - * - * MUTEX: Locks namespace for entire execution - * - ******************************************************************************/ -acpi_status acpi_ns_root_initialize(void) -{ - acpi_status status; - const struct acpi_predefined_names *init_val = NULL; - struct acpi_namespace_node *new_node; - union acpi_operand_object *obj_desc; - acpi_string val = NULL; - - ACPI_FUNCTION_TRACE(ns_root_initialize); - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * The global root ptr is initially NULL, so a non-NULL value indicates - * that acpi_ns_root_initialize() has already been called; just return. - */ - if (acpi_gbl_root_node) { - status = AE_OK; - goto unlock_and_exit; - } - - /* - * Tell the rest of the subsystem that the root is initialized - * (This is OK because the namespace is locked) - */ - acpi_gbl_root_node = &acpi_gbl_root_node_struct; - - /* Enter the pre-defined names in the name table */ - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Entering predefined entries into namespace\n")); - - for (init_val = acpi_gbl_pre_defined_names; init_val->name; init_val++) { - - /* _OSI is optional for now, will be permanent later */ - - if (!ACPI_STRCMP(init_val->name, "_OSI") - && !acpi_gbl_create_osi_method) { - continue; - } - - status = acpi_ns_lookup(NULL, init_val->name, init_val->type, - ACPI_IMODE_LOAD_PASS2, - ACPI_NS_NO_UPSEARCH, NULL, &new_node); - - if (ACPI_FAILURE(status) || (!new_node)) { /* Must be on same line for code converter */ - ACPI_EXCEPTION((AE_INFO, status, - "Could not create predefined name %s", - init_val->name)); - } - - /* - * Name entered successfully. - * If entry in pre_defined_names[] specifies an - * initial value, create the initial value. - */ - if (init_val->val) { - status = acpi_os_predefined_override(init_val, &val); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Could not override predefined %s", - init_val->name)); - } - - if (!val) { - val = init_val->val; - } - - /* - * Entry requests an initial value, allocate a - * descriptor for it. - */ - obj_desc = - acpi_ut_create_internal_object(init_val->type); - if (!obj_desc) { - status = AE_NO_MEMORY; - goto unlock_and_exit; - } - - /* - * Convert value string from table entry to - * internal representation. Only types actually - * used for initial values are implemented here. - */ - switch (init_val->type) { - case ACPI_TYPE_METHOD: - obj_desc->method.param_count = - (u8) ACPI_TO_INTEGER(val); - obj_desc->common.flags |= AOPOBJ_DATA_VALID; - -#if defined (ACPI_ASL_COMPILER) - - /* Save the parameter count for the i_aSL compiler */ - - new_node->value = obj_desc->method.param_count; -#else - /* Mark this as a very SPECIAL method */ - - obj_desc->method.method_flags = - AML_METHOD_INTERNAL_ONLY; - obj_desc->method.implementation = - acpi_ut_osi_implementation; -#endif - break; - - case ACPI_TYPE_INTEGER: - - obj_desc->integer.value = ACPI_TO_INTEGER(val); - break; - - case ACPI_TYPE_STRING: - - /* - * Build an object around the static string - */ - obj_desc->string.length = - (u32) ACPI_STRLEN(val); - obj_desc->string.pointer = val; - obj_desc->common.flags |= AOPOBJ_STATIC_POINTER; - break; - - case ACPI_TYPE_MUTEX: - - obj_desc->mutex.node = new_node; - obj_desc->mutex.sync_level = - (u8) (ACPI_TO_INTEGER(val) - 1); - - /* Create a mutex */ - - status = - acpi_os_create_mutex(&obj_desc->mutex. - os_mutex); - if (ACPI_FAILURE(status)) { - acpi_ut_remove_reference(obj_desc); - goto unlock_and_exit; - } - - /* Special case for ACPI Global Lock */ - - if (ACPI_STRCMP(init_val->name, "_GL_") == 0) { - acpi_gbl_global_lock_mutex = obj_desc; - - /* Create additional counting semaphore for global lock */ - - status = - acpi_os_create_semaphore(1, 0, - &acpi_gbl_global_lock_semaphore); - if (ACPI_FAILURE(status)) { - acpi_ut_remove_reference - (obj_desc); - goto unlock_and_exit; - } - } - break; - - default: - - ACPI_ERROR((AE_INFO, - "Unsupported initial type value %X", - init_val->type)); - acpi_ut_remove_reference(obj_desc); - obj_desc = NULL; - continue; - } - - /* Store pointer to value descriptor in the Node */ - - status = acpi_ns_attach_object(new_node, obj_desc, - ACPI_GET_OBJECT_TYPE - (obj_desc)); - - /* Remove local reference to the object */ - - acpi_ut_remove_reference(obj_desc); - } - } - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - - /* Save a handle to "_GPE", it is always present */ - - if (ACPI_SUCCESS(status)) { - status = acpi_ns_get_node(NULL, "\\_GPE", ACPI_NS_NO_UPSEARCH, - &acpi_gbl_fadt_gpe_device); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_lookup - * - * PARAMETERS: scope_info - Current scope info block - * Pathname - Search pathname, in internal format - * (as represented in the AML stream) - * Type - Type associated with name - * interpreter_mode - IMODE_LOAD_PASS2 => add name if not found - * Flags - Flags describing the search restrictions - * walk_state - Current state of the walk - * return_node - Where the Node is placed (if found - * or created successfully) - * - * RETURN: Status - * - * DESCRIPTION: Find or enter the passed name in the name space. - * Log an error if name not found in Exec mode. - * - * MUTEX: Assumes namespace is locked. - * - ******************************************************************************/ - -acpi_status -acpi_ns_lookup(union acpi_generic_state *scope_info, - char *pathname, - acpi_object_type type, - acpi_interpreter_mode interpreter_mode, - u32 flags, - struct acpi_walk_state *walk_state, - struct acpi_namespace_node **return_node) -{ - acpi_status status; - char *path = pathname; - struct acpi_namespace_node *prefix_node; - struct acpi_namespace_node *current_node = NULL; - struct acpi_namespace_node *this_node = NULL; - u32 num_segments; - u32 num_carats; - acpi_name simple_name; - acpi_object_type type_to_check_for; - acpi_object_type this_search_type; - u32 search_parent_flag = ACPI_NS_SEARCH_PARENT; - u32 local_flags; - - ACPI_FUNCTION_TRACE(ns_lookup); - - if (!return_node) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - local_flags = flags & ~(ACPI_NS_ERROR_IF_FOUND | ACPI_NS_SEARCH_PARENT); - *return_node = ACPI_ENTRY_NOT_FOUND; - acpi_gbl_ns_lookup_count++; - - if (!acpi_gbl_root_node) { - return_ACPI_STATUS(AE_NO_NAMESPACE); - } - - /* - * Get the prefix scope. - * A null scope means use the root scope - */ - if ((!scope_info) || (!scope_info->scope.node)) { - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Null scope prefix, using root node (%p)\n", - acpi_gbl_root_node)); - - prefix_node = acpi_gbl_root_node; - } else { - prefix_node = scope_info->scope.node; - if (ACPI_GET_DESCRIPTOR_TYPE(prefix_node) != - ACPI_DESC_TYPE_NAMED) { - ACPI_ERROR((AE_INFO, "%p is not a namespace node [%s]", - prefix_node, - acpi_ut_get_descriptor_name(prefix_node))); - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - if (!(flags & ACPI_NS_PREFIX_IS_SCOPE)) { - /* - * This node might not be a actual "scope" node (such as a - * Device/Method, etc.) It could be a Package or other object node. - * Backup up the tree to find the containing scope node. - */ - while (!acpi_ns_opens_scope(prefix_node->type) && - prefix_node->type != ACPI_TYPE_ANY) { - prefix_node = - acpi_ns_get_parent_node(prefix_node); - } - } - } - - /* Save type TBD: may be no longer necessary */ - - type_to_check_for = type; - - /* - * Begin examination of the actual pathname - */ - if (!pathname) { - - /* A Null name_path is allowed and refers to the root */ - - num_segments = 0; - this_node = acpi_gbl_root_node; - path = ""; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Null Pathname (Zero segments), Flags=%X\n", - flags)); - } else { - /* - * Name pointer is valid (and must be in internal name format) - * - * Check for scope prefixes: - * - * As represented in the AML stream, a namepath consists of an - * optional scope prefix followed by a name segment part. - * - * If present, the scope prefix is either a Root Prefix (in - * which case the name is fully qualified), or one or more - * Parent Prefixes (in which case the name's scope is relative - * to the current scope). - */ - if (*path == (u8) AML_ROOT_PREFIX) { - - /* Pathname is fully qualified, start from the root */ - - this_node = acpi_gbl_root_node; - search_parent_flag = ACPI_NS_NO_UPSEARCH; - - /* Point to name segment part */ - - path++; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Path is absolute from root [%p]\n", - this_node)); - } else { - /* Pathname is relative to current scope, start there */ - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Searching relative to prefix scope [%4.4s] (%p)\n", - acpi_ut_get_node_name(prefix_node), - prefix_node)); - - /* - * Handle multiple Parent Prefixes (carat) by just getting - * the parent node for each prefix instance. - */ - this_node = prefix_node; - num_carats = 0; - while (*path == (u8) AML_PARENT_PREFIX) { - - /* Name is fully qualified, no search rules apply */ - - search_parent_flag = ACPI_NS_NO_UPSEARCH; - /* - * Point past this prefix to the name segment - * part or the next Parent Prefix - */ - path++; - - /* Backup to the parent node */ - - num_carats++; - this_node = acpi_ns_get_parent_node(this_node); - if (!this_node) { - - /* Current scope has no parent scope */ - - ACPI_ERROR((AE_INFO, - "ACPI path has too many parent prefixes (^) - reached beyond root node")); - return_ACPI_STATUS(AE_NOT_FOUND); - } - } - - if (search_parent_flag == ACPI_NS_NO_UPSEARCH) { - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Search scope is [%4.4s], path has %d carat(s)\n", - acpi_ut_get_node_name - (this_node), num_carats)); - } - } - - /* - * Determine the number of ACPI name segments in this pathname. - * - * The segment part consists of either: - * - A Null name segment (0) - * - A dual_name_prefix followed by two 4-byte name segments - * - A multi_name_prefix followed by a byte indicating the - * number of segments and the segments themselves. - * - A single 4-byte name segment - * - * Examine the name prefix opcode, if any, to determine the number of - * segments. - */ - switch (*path) { - case 0: - /* - * Null name after a root or parent prefixes. We already - * have the correct target node and there are no name segments. - */ - num_segments = 0; - type = this_node->type; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Prefix-only Pathname (Zero name segments), Flags=%X\n", - flags)); - break; - - case AML_DUAL_NAME_PREFIX: - - /* More than one name_seg, search rules do not apply */ - - search_parent_flag = ACPI_NS_NO_UPSEARCH; - - /* Two segments, point to first name segment */ - - num_segments = 2; - path++; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Dual Pathname (2 segments, Flags=%X)\n", - flags)); - break; - - case AML_MULTI_NAME_PREFIX_OP: - - /* More than one name_seg, search rules do not apply */ - - search_parent_flag = ACPI_NS_NO_UPSEARCH; - - /* Extract segment count, point to first name segment */ - - path++; - num_segments = (u32) (u8) * path; - path++; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Multi Pathname (%d Segments, Flags=%X)\n", - num_segments, flags)); - break; - - default: - /* - * Not a Null name, no Dual or Multi prefix, hence there is - * only one name segment and Pathname is already pointing to it. - */ - num_segments = 1; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Simple Pathname (1 segment, Flags=%X)\n", - flags)); - break; - } - - ACPI_DEBUG_EXEC(acpi_ns_print_pathname(num_segments, path)); - } - - /* - * Search namespace for each segment of the name. Loop through and - * verify (or add to the namespace) each name segment. - * - * The object type is significant only at the last name - * segment. (We don't care about the types along the path, only - * the type of the final target object.) - */ - this_search_type = ACPI_TYPE_ANY; - current_node = this_node; - while (num_segments && current_node) { - num_segments--; - if (!num_segments) { - /* - * This is the last segment, enable typechecking - */ - this_search_type = type; - - /* - * Only allow automatic parent search (search rules) if the caller - * requested it AND we have a single, non-fully-qualified name_seg - */ - if ((search_parent_flag != ACPI_NS_NO_UPSEARCH) && - (flags & ACPI_NS_SEARCH_PARENT)) { - local_flags |= ACPI_NS_SEARCH_PARENT; - } - - /* Set error flag according to caller */ - - if (flags & ACPI_NS_ERROR_IF_FOUND) { - local_flags |= ACPI_NS_ERROR_IF_FOUND; - } - } - - /* Extract one ACPI name from the front of the pathname */ - - ACPI_MOVE_32_TO_32(&simple_name, path); - - /* Try to find the single (4 character) ACPI name */ - - status = - acpi_ns_search_and_enter(simple_name, walk_state, - current_node, interpreter_mode, - this_search_type, local_flags, - &this_node); - if (ACPI_FAILURE(status)) { - if (status == AE_NOT_FOUND) { - - /* Name not found in ACPI namespace */ - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Name [%4.4s] not found in scope [%4.4s] %p\n", - (char *)&simple_name, - (char *)¤t_node->name, - current_node)); - } - - *return_node = this_node; - return_ACPI_STATUS(status); - } - - /* More segments to follow? */ - - if (num_segments > 0) { - /* - * If we have an alias to an object that opens a scope (such as a - * device or processor), we need to dereference the alias here so that - * we can access any children of the original node (via the remaining - * segments). - */ - if (this_node->type == ACPI_TYPE_LOCAL_ALIAS) { - if (!this_node->object) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - if (acpi_ns_opens_scope - (((struct acpi_namespace_node *)this_node-> - object)->type)) { - this_node = - (struct acpi_namespace_node *) - this_node->object; - } - } - } - - /* Special handling for the last segment (num_segments == 0) */ - - else { - /* - * Sanity typecheck of the target object: - * - * If 1) This is the last segment (num_segments == 0) - * 2) And we are looking for a specific type - * (Not checking for TYPE_ANY) - * 3) Which is not an alias - * 4) Which is not a local type (TYPE_SCOPE) - * 5) And the type of target object is known (not TYPE_ANY) - * 6) And target object does not match what we are looking for - * - * Then we have a type mismatch. Just warn and ignore it. - */ - if ((type_to_check_for != ACPI_TYPE_ANY) && - (type_to_check_for != ACPI_TYPE_LOCAL_ALIAS) && - (type_to_check_for != ACPI_TYPE_LOCAL_METHOD_ALIAS) - && (type_to_check_for != ACPI_TYPE_LOCAL_SCOPE) - && (this_node->type != ACPI_TYPE_ANY) - && (this_node->type != type_to_check_for)) { - - /* Complain about a type mismatch */ - - ACPI_WARNING((AE_INFO, - "NsLookup: Type mismatch on %4.4s (%s), searching for (%s)", - ACPI_CAST_PTR(char, &simple_name), - acpi_ut_get_type_name(this_node-> - type), - acpi_ut_get_type_name - (type_to_check_for))); - } - - /* - * If this is the last name segment and we are not looking for a - * specific type, but the type of found object is known, use that type - * to (later) see if it opens a scope. - */ - if (type == ACPI_TYPE_ANY) { - type = this_node->type; - } - } - - /* Point to next name segment and make this node current */ - - path += ACPI_NAME_SIZE; - current_node = this_node; - } - - /* - * Always check if we need to open a new scope - */ - if (!(flags & ACPI_NS_DONT_OPEN_SCOPE) && (walk_state)) { - /* - * If entry is a type which opens a scope, push the new scope on the - * scope stack. - */ - if (acpi_ns_opens_scope(type)) { - status = - acpi_ds_scope_stack_push(this_node, type, - walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - } - - *return_node = this_node; - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/namespace/nsalloc.c b/drivers/acpi/namespace/nsalloc.c deleted file mode 100644 index cb2afbf4e45..00000000000 --- a/drivers/acpi/namespace/nsalloc.c +++ /dev/null @@ -1,497 +0,0 @@ -/******************************************************************************* - * - * Module Name: nsalloc - Namespace allocation and deletion utilities - * - ******************************************************************************/ - -/* - * 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("nsalloc") - -/******************************************************************************* - * - * FUNCTION: acpi_ns_create_node - * - * PARAMETERS: Name - Name of the new node (4 char ACPI name) - * - * RETURN: New namespace node (Null on failure) - * - * DESCRIPTION: Create a namespace node - * - ******************************************************************************/ -struct acpi_namespace_node *acpi_ns_create_node(u32 name) -{ - struct acpi_namespace_node *node; -#ifdef ACPI_DBG_TRACK_ALLOCATIONS - u32 temp; -#endif - - ACPI_FUNCTION_TRACE(ns_create_node); - - node = acpi_os_acquire_object(acpi_gbl_namespace_cache); - if (!node) { - return_PTR(NULL); - } - - ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_allocated++); - -#ifdef ACPI_DBG_TRACK_ALLOCATIONS - temp = - acpi_gbl_ns_node_list->total_allocated - - acpi_gbl_ns_node_list->total_freed; - if (temp > acpi_gbl_ns_node_list->max_occupied) { - acpi_gbl_ns_node_list->max_occupied = temp; - } -#endif - - node->name.integer = name; - ACPI_SET_DESCRIPTOR_TYPE(node, ACPI_DESC_TYPE_NAMED); - return_PTR(node); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_delete_node - * - * PARAMETERS: Node - Node to be deleted - * - * RETURN: None - * - * DESCRIPTION: Delete a namespace node - * - ******************************************************************************/ - -void acpi_ns_delete_node(struct acpi_namespace_node *node) -{ - struct acpi_namespace_node *parent_node; - struct acpi_namespace_node *prev_node; - struct acpi_namespace_node *next_node; - - ACPI_FUNCTION_TRACE_PTR(ns_delete_node, node); - - parent_node = acpi_ns_get_parent_node(node); - - prev_node = NULL; - next_node = parent_node->child; - - /* Find the node that is the previous peer in the parent's child list */ - - while (next_node != node) { - prev_node = next_node; - next_node = prev_node->peer; - } - - if (prev_node) { - - /* Node is not first child, unlink it */ - - prev_node->peer = next_node->peer; - if (next_node->flags & ANOBJ_END_OF_PEER_LIST) { - prev_node->flags |= ANOBJ_END_OF_PEER_LIST; - } - } else { - /* Node is first child (has no previous peer) */ - - if (next_node->flags & ANOBJ_END_OF_PEER_LIST) { - - /* No peers at all */ - - parent_node->child = NULL; - } else { /* Link peer list to parent */ - - parent_node->child = next_node->peer; - } - } - - ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++); - - /* - * Detach an object if there is one, then delete the node - */ - acpi_ns_detach_object(node); - (void)acpi_os_release_object(acpi_gbl_namespace_cache, node); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_install_node - * - * PARAMETERS: walk_state - Current state of the walk - * parent_node - The parent of the new Node - * Node - The new Node to install - * Type - ACPI object type of the new Node - * - * RETURN: None - * - * DESCRIPTION: Initialize a new namespace node and install it amongst - * its peers. - * - * Note: Current namespace lookup is linear search. This appears - * to be sufficient as namespace searches consume only a small - * fraction of the execution time of the ACPI subsystem. - * - ******************************************************************************/ - -void acpi_ns_install_node(struct acpi_walk_state *walk_state, struct acpi_namespace_node *parent_node, /* Parent */ - struct acpi_namespace_node *node, /* New Child */ - acpi_object_type type) -{ - acpi_owner_id owner_id = 0; - struct acpi_namespace_node *child_node; - - ACPI_FUNCTION_TRACE(ns_install_node); - - /* - * Get the owner ID from the Walk state - * The owner ID is used to track table deletion and - * deletion of objects created by methods - */ - if (walk_state) { - owner_id = walk_state->owner_id; - } - - /* Link the new entry into the parent and existing children */ - - child_node = parent_node->child; - if (!child_node) { - parent_node->child = node; - node->flags |= ANOBJ_END_OF_PEER_LIST; - node->peer = parent_node; - } else { - while (!(child_node->flags & ANOBJ_END_OF_PEER_LIST)) { - child_node = child_node->peer; - } - - child_node->peer = node; - - /* Clear end-of-list flag */ - - child_node->flags &= ~ANOBJ_END_OF_PEER_LIST; - node->flags |= ANOBJ_END_OF_PEER_LIST; - node->peer = parent_node; - } - - /* Init the new entry */ - - node->owner_id = owner_id; - node->type = (u8) type; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "%4.4s (%s) [Node %p Owner %X] added to %4.4s (%s) [Node %p]\n", - acpi_ut_get_node_name(node), - acpi_ut_get_type_name(node->type), node, owner_id, - acpi_ut_get_node_name(parent_node), - acpi_ut_get_type_name(parent_node->type), - parent_node)); - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_delete_children - * - * PARAMETERS: parent_node - Delete this objects children - * - * RETURN: None. - * - * DESCRIPTION: Delete all children of the parent object. In other words, - * deletes a "scope". - * - ******************************************************************************/ - -void acpi_ns_delete_children(struct acpi_namespace_node *parent_node) -{ - struct acpi_namespace_node *child_node; - struct acpi_namespace_node *next_node; - u8 flags; - - ACPI_FUNCTION_TRACE_PTR(ns_delete_children, parent_node); - - if (!parent_node) { - return_VOID; - } - - /* If no children, all done! */ - - child_node = parent_node->child; - if (!child_node) { - return_VOID; - } - - /* - * Deallocate all children at this level - */ - do { - - /* Get the things we need */ - - next_node = child_node->peer; - flags = child_node->flags; - - /* Grandchildren should have all been deleted already */ - - if (child_node->child) { - ACPI_ERROR((AE_INFO, "Found a grandchild! P=%p C=%p", - parent_node, child_node)); - } - - /* Now we can free this child object */ - - ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++); - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "Object %p, Remaining %X\n", child_node, - acpi_gbl_current_node_count)); - - /* - * Detach an object if there is one, then free the child node - */ - acpi_ns_detach_object(child_node); - - /* Now we can delete the node */ - - (void)acpi_os_release_object(acpi_gbl_namespace_cache, - child_node); - - /* And move on to the next child in the list */ - - child_node = next_node; - - } while (!(flags & ANOBJ_END_OF_PEER_LIST)); - - /* Clear the parent's child pointer */ - - parent_node->child = NULL; - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_delete_namespace_subtree - * - * PARAMETERS: parent_node - Root of the subtree to be deleted - * - * RETURN: None. - * - * DESCRIPTION: Delete a subtree of the namespace. This includes all objects - * stored within the subtree. - * - ******************************************************************************/ - -void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node) -{ - struct acpi_namespace_node *child_node = NULL; - u32 level = 1; - - ACPI_FUNCTION_TRACE(ns_delete_namespace_subtree); - - if (!parent_node) { - return_VOID; - } - - /* - * Traverse the tree of objects until we bubble back up - * to where we started. - */ - while (level > 0) { - - /* Get the next node in this scope (NULL if none) */ - - child_node = - acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node, - child_node); - if (child_node) { - - /* Found a child node - detach any attached object */ - - acpi_ns_detach_object(child_node); - - /* Check if this node has any children */ - - if (acpi_ns_get_next_node - (ACPI_TYPE_ANY, child_node, NULL)) { - /* - * There is at least one child of this node, - * visit the node - */ - level++; - parent_node = child_node; - child_node = NULL; - } - } else { - /* - * No more children of this parent node. - * Move up to the grandparent. - */ - level--; - - /* - * Now delete all of the children of this parent - * all at the same time. - */ - acpi_ns_delete_children(parent_node); - - /* New "last child" is this parent node */ - - child_node = parent_node; - - /* Move up the tree to the grandparent */ - - parent_node = acpi_ns_get_parent_node(parent_node); - } - } - - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_delete_namespace_by_owner - * - * PARAMETERS: owner_id - All nodes with this owner will be deleted - * - * RETURN: Status - * - * DESCRIPTION: Delete entries within the namespace that are owned by a - * specific ID. Used to delete entire ACPI tables. All - * reference counts are updated. - * - * MUTEX: Locks namespace during deletion walk. - * - ******************************************************************************/ - -void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id) -{ - struct acpi_namespace_node *child_node; - struct acpi_namespace_node *deletion_node; - struct acpi_namespace_node *parent_node; - u32 level; - acpi_status status; - - ACPI_FUNCTION_TRACE_U32(ns_delete_namespace_by_owner, owner_id); - - if (owner_id == 0) { - return_VOID; - } - - /* Lock namespace for possible update */ - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_VOID; - } - - deletion_node = NULL; - parent_node = acpi_gbl_root_node; - child_node = NULL; - level = 1; - - /* - * Traverse the tree of nodes until we bubble back up - * to where we started. - */ - while (level > 0) { - /* - * Get the next child of this parent node. When child_node is NULL, - * the first child of the parent is returned - */ - child_node = - acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node, - child_node); - - if (deletion_node) { - acpi_ns_delete_children(deletion_node); - acpi_ns_delete_node(deletion_node); - deletion_node = NULL; - } - - if (child_node) { - if (child_node->owner_id == owner_id) { - - /* Found a matching child node - detach any attached object */ - - acpi_ns_detach_object(child_node); - } - - /* Check if this node has any children */ - - if (acpi_ns_get_next_node - (ACPI_TYPE_ANY, child_node, NULL)) { - /* - * There is at least one child of this node, - * visit the node - */ - level++; - parent_node = child_node; - child_node = NULL; - } else if (child_node->owner_id == owner_id) { - deletion_node = child_node; - } - } else { - /* - * No more children of this parent node. - * Move up to the grandparent. - */ - level--; - if (level != 0) { - if (parent_node->owner_id == owner_id) { - deletion_node = parent_node; - } - } - - /* New "last child" is this parent node */ - - child_node = parent_node; - - /* Move up the tree to the grandparent */ - - parent_node = acpi_ns_get_parent_node(parent_node); - } - } - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_VOID; -} diff --git a/drivers/acpi/namespace/nsdump.c b/drivers/acpi/namespace/nsdump.c deleted file mode 100644 index 48f02e659f2..00000000000 --- a/drivers/acpi/namespace/nsdump.c +++ /dev/null @@ -1,709 +0,0 @@ -/****************************************************************************** - * - * Module Name: nsdump - table dumping routines for debug - * - *****************************************************************************/ - -/* - * 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("nsdump") - -/* Local prototypes */ -#ifdef ACPI_OBSOLETE_FUNCTIONS -void acpi_ns_dump_root_devices(void); - -static acpi_status -acpi_ns_dump_one_device(acpi_handle obj_handle, - u32 level, void *context, void **return_value); -#endif - -#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) -/******************************************************************************* - * - * FUNCTION: acpi_ns_print_pathname - * - * PARAMETERS: num_segments - Number of ACPI name segments - * Pathname - The compressed (internal) path - * - * RETURN: None - * - * DESCRIPTION: Print an object's full namespace pathname - * - ******************************************************************************/ - -void acpi_ns_print_pathname(u32 num_segments, char *pathname) -{ - u32 i; - - ACPI_FUNCTION_NAME(ns_print_pathname); - - if (!(acpi_dbg_level & ACPI_LV_NAMES) - || !(acpi_dbg_layer & ACPI_NAMESPACE)) { - return; - } - - /* Print the entire name */ - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "[")); - - while (num_segments) { - for (i = 0; i < 4; i++) { - ACPI_IS_PRINT(pathname[i]) ? - acpi_os_printf("%c", pathname[i]) : - acpi_os_printf("?"); - } - - pathname += ACPI_NAME_SIZE; - num_segments--; - if (num_segments) { - acpi_os_printf("."); - } - } - - acpi_os_printf("]\n"); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_dump_pathname - * - * PARAMETERS: Handle - Object - * Msg - Prefix message - * Level - Desired debug level - * Component - Caller's component ID - * - * RETURN: None - * - * DESCRIPTION: Print an object's full namespace pathname - * Manages allocation/freeing of a pathname buffer - * - ******************************************************************************/ - -void -acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component) -{ - - ACPI_FUNCTION_TRACE(ns_dump_pathname); - - /* Do this only if the requested debug level and component are enabled */ - - if (!(acpi_dbg_level & level) || !(acpi_dbg_layer & component)) { - return_VOID; - } - - /* Convert handle to a full pathname and print it (with supplied message) */ - - acpi_ns_print_node_pathname(handle, msg); - acpi_os_printf("\n"); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_dump_one_object - * - * PARAMETERS: obj_handle - Node to be dumped - * Level - Nesting level of the handle - * Context - Passed into walk_namespace - * return_value - Not used - * - * RETURN: Status - * - * DESCRIPTION: Dump a single Node - * This procedure is a user_function called by acpi_ns_walk_namespace. - * - ******************************************************************************/ - -acpi_status -acpi_ns_dump_one_object(acpi_handle obj_handle, - u32 level, void *context, void **return_value) -{ - struct acpi_walk_info *info = (struct acpi_walk_info *)context; - struct acpi_namespace_node *this_node; - union acpi_operand_object *obj_desc = NULL; - acpi_object_type obj_type; - acpi_object_type type; - u32 bytes_to_dump; - u32 dbg_level; - u32 i; - - ACPI_FUNCTION_NAME(ns_dump_one_object); - - /* Is output enabled? */ - - if (!(acpi_dbg_level & info->debug_level)) { - return (AE_OK); - } - - if (!obj_handle) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Null object handle\n")); - return (AE_OK); - } - - this_node = acpi_ns_map_handle_to_node(obj_handle); - type = this_node->type; - - /* Check if the owner matches */ - - if ((info->owner_id != ACPI_OWNER_ID_MAX) && - (info->owner_id != this_node->owner_id)) { - return (AE_OK); - } - - if (!(info->display_type & ACPI_DISPLAY_SHORT)) { - - /* Indent the object according to the level */ - - acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " "); - - /* Check the node type and name */ - - if (type > ACPI_TYPE_LOCAL_MAX) { - ACPI_WARNING((AE_INFO, "Invalid ACPI Object Type %08X", - type)); - } - - if (!acpi_ut_valid_acpi_name(this_node->name.integer)) { - this_node->name.integer = - acpi_ut_repair_name(this_node->name.ascii); - - ACPI_WARNING((AE_INFO, "Invalid ACPI Name %08X", - this_node->name.integer)); - } - - acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node)); - } - - /* - * Now we can print out the pertinent information - */ - acpi_os_printf(" %-12s %p %2.2X ", - acpi_ut_get_type_name(type), this_node, - this_node->owner_id); - - dbg_level = acpi_dbg_level; - acpi_dbg_level = 0; - obj_desc = acpi_ns_get_attached_object(this_node); - acpi_dbg_level = dbg_level; - - /* Temp nodes are those nodes created by a control method */ - - if (this_node->flags & ANOBJ_TEMPORARY) { - acpi_os_printf("(T) "); - } - - switch (info->display_type & ACPI_DISPLAY_MASK) { - case ACPI_DISPLAY_SUMMARY: - - if (!obj_desc) { - - /* No attached object, we are done */ - - acpi_os_printf("\n"); - return (AE_OK); - } - - switch (type) { - case ACPI_TYPE_PROCESSOR: - - acpi_os_printf("ID %X Len %.4X Addr %p\n", - obj_desc->processor.proc_id, - obj_desc->processor.length, - ACPI_CAST_PTR(void, - obj_desc->processor. - address)); - break; - - case ACPI_TYPE_DEVICE: - - acpi_os_printf("Notify Object: %p\n", obj_desc); - break; - - case ACPI_TYPE_METHOD: - - acpi_os_printf("Args %X Len %.4X Aml %p\n", - (u32) obj_desc->method.param_count, - obj_desc->method.aml_length, - obj_desc->method.aml_start); - break; - - case ACPI_TYPE_INTEGER: - - acpi_os_printf("= %8.8X%8.8X\n", - ACPI_FORMAT_UINT64(obj_desc->integer. - value)); - break; - - case ACPI_TYPE_PACKAGE: - - if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { - acpi_os_printf("Elements %.2X\n", - obj_desc->package.count); - } else { - acpi_os_printf("[Length not yet evaluated]\n"); - } - break; - - case ACPI_TYPE_BUFFER: - - if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { - acpi_os_printf("Len %.2X", - obj_desc->buffer.length); - - /* Dump some of the buffer */ - - if (obj_desc->buffer.length > 0) { - acpi_os_printf(" ="); - for (i = 0; - (i < obj_desc->buffer.length - && i < 12); i++) { - acpi_os_printf(" %.2hX", - obj_desc->buffer. - pointer[i]); - } - } - acpi_os_printf("\n"); - } else { - acpi_os_printf("[Length not yet evaluated]\n"); - } - break; - - case ACPI_TYPE_STRING: - - acpi_os_printf("Len %.2X ", obj_desc->string.length); - acpi_ut_print_string(obj_desc->string.pointer, 32); - acpi_os_printf("\n"); - break; - - case ACPI_TYPE_REGION: - - acpi_os_printf("[%s]", - acpi_ut_get_region_name(obj_desc->region. - space_id)); - if (obj_desc->region.flags & AOPOBJ_DATA_VALID) { - acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n", - ACPI_FORMAT_NATIVE_UINT - (obj_desc->region.address), - obj_desc->region.length); - } else { - acpi_os_printf - (" [Address/Length not yet evaluated]\n"); - } - break; - - case ACPI_TYPE_LOCAL_REFERENCE: - - acpi_os_printf("[%s]\n", - acpi_ut_get_reference_name(obj_desc)); - break; - - case ACPI_TYPE_BUFFER_FIELD: - - if (obj_desc->buffer_field.buffer_obj && - obj_desc->buffer_field.buffer_obj->buffer.node) { - acpi_os_printf("Buf [%4.4s]", - acpi_ut_get_node_name(obj_desc-> - buffer_field. - buffer_obj-> - buffer. - node)); - } - break; - - case ACPI_TYPE_LOCAL_REGION_FIELD: - - acpi_os_printf("Rgn [%4.4s]", - acpi_ut_get_node_name(obj_desc-> - common_field. - region_obj->region. - node)); - break; - - case ACPI_TYPE_LOCAL_BANK_FIELD: - - acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]", - acpi_ut_get_node_name(obj_desc-> - common_field. - region_obj->region. - node), - acpi_ut_get_node_name(obj_desc-> - bank_field. - bank_obj-> - common_field. - node)); - break; - - case ACPI_TYPE_LOCAL_INDEX_FIELD: - - acpi_os_printf("Idx [%4.4s] Dat [%4.4s]", - acpi_ut_get_node_name(obj_desc-> - index_field. - index_obj-> - common_field.node), - acpi_ut_get_node_name(obj_desc-> - index_field. - data_obj-> - common_field. - node)); - break; - - case ACPI_TYPE_LOCAL_ALIAS: - case ACPI_TYPE_LOCAL_METHOD_ALIAS: - - acpi_os_printf("Target %4.4s (%p)\n", - acpi_ut_get_node_name(obj_desc), - obj_desc); - break; - - default: - - acpi_os_printf("Object %p\n", obj_desc); - break; - } - - /* Common field handling */ - - switch (type) { - case ACPI_TYPE_BUFFER_FIELD: - case ACPI_TYPE_LOCAL_REGION_FIELD: - case ACPI_TYPE_LOCAL_BANK_FIELD: - case ACPI_TYPE_LOCAL_INDEX_FIELD: - - acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n", - (obj_desc->common_field. - base_byte_offset * 8) - + - obj_desc->common_field. - start_field_bit_offset, - obj_desc->common_field.bit_length, - obj_desc->common_field. - access_byte_width); - break; - - default: - break; - } - break; - - case ACPI_DISPLAY_OBJECTS: - - acpi_os_printf("O:%p", obj_desc); - if (!obj_desc) { - - /* No attached object, we are done */ - - acpi_os_printf("\n"); - return (AE_OK); - } - - acpi_os_printf("(R%d)", obj_desc->common.reference_count); - - switch (type) { - case ACPI_TYPE_METHOD: - - /* Name is a Method and its AML offset/length are set */ - - acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start, - obj_desc->method.aml_length); - break; - - case ACPI_TYPE_INTEGER: - - acpi_os_printf(" I:%8.8X8.8%X\n", - ACPI_FORMAT_UINT64(obj_desc->integer. - value)); - break; - - case ACPI_TYPE_STRING: - - acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer, - obj_desc->string.length); - break; - - case ACPI_TYPE_BUFFER: - - acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer, - obj_desc->buffer.length); - break; - - default: - - acpi_os_printf("\n"); - break; - } - break; - - default: - acpi_os_printf("\n"); - break; - } - - /* If debug turned off, done */ - - if (!(acpi_dbg_level & ACPI_LV_VALUES)) { - return (AE_OK); - } - - /* If there is an attached object, display it */ - - dbg_level = acpi_dbg_level; - acpi_dbg_level = 0; - obj_desc = acpi_ns_get_attached_object(this_node); - acpi_dbg_level = dbg_level; - - /* Dump attached objects */ - - while (obj_desc) { - obj_type = ACPI_TYPE_INVALID; - acpi_os_printf("Attached Object %p: ", obj_desc); - - /* Decode the type of attached object and dump the contents */ - - switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) { - case ACPI_DESC_TYPE_NAMED: - - acpi_os_printf("(Ptr to Node)\n"); - bytes_to_dump = sizeof(struct acpi_namespace_node); - ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump); - break; - - case ACPI_DESC_TYPE_OPERAND: - - obj_type = ACPI_GET_OBJECT_TYPE(obj_desc); - - if (obj_type > ACPI_TYPE_LOCAL_MAX) { - acpi_os_printf - ("(Pointer to ACPI Object type %.2X [UNKNOWN])\n", - obj_type); - bytes_to_dump = 32; - } else { - acpi_os_printf - ("(Pointer to ACPI Object type %.2X [%s])\n", - obj_type, acpi_ut_get_type_name(obj_type)); - bytes_to_dump = - sizeof(union acpi_operand_object); - } - - ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump); - break; - - default: - - break; - } - - /* If value is NOT an internal object, we are done */ - - if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != - ACPI_DESC_TYPE_OPERAND) { - goto cleanup; - } - - /* - * Valid object, get the pointer to next level, if any - */ - switch (obj_type) { - case ACPI_TYPE_BUFFER: - case ACPI_TYPE_STRING: - /* - * NOTE: takes advantage of common fields between string/buffer - */ - bytes_to_dump = obj_desc->string.length; - obj_desc = (void *)obj_desc->string.pointer; - acpi_os_printf("(Buffer/String pointer %p length %X)\n", - obj_desc, bytes_to_dump); - ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump); - goto cleanup; - - case ACPI_TYPE_BUFFER_FIELD: - obj_desc = - (union acpi_operand_object *)obj_desc->buffer_field. - buffer_obj; - break; - - case ACPI_TYPE_PACKAGE: - obj_desc = (void *)obj_desc->package.elements; - break; - - case ACPI_TYPE_METHOD: - obj_desc = (void *)obj_desc->method.aml_start; - break; - - case ACPI_TYPE_LOCAL_REGION_FIELD: - obj_desc = (void *)obj_desc->field.region_obj; - break; - - case ACPI_TYPE_LOCAL_BANK_FIELD: - obj_desc = (void *)obj_desc->bank_field.region_obj; - break; - - case ACPI_TYPE_LOCAL_INDEX_FIELD: - obj_desc = (void *)obj_desc->index_field.index_obj; - break; - - default: - goto cleanup; - } - - obj_type = ACPI_TYPE_INVALID; /* Terminate loop after next pass */ - } - - cleanup: - acpi_os_printf("\n"); - return (AE_OK); -} - -#ifdef ACPI_FUTURE_USAGE -/******************************************************************************* - * - * FUNCTION: acpi_ns_dump_objects - * - * PARAMETERS: Type - Object type to be dumped - * display_type - 0 or ACPI_DISPLAY_SUMMARY - * max_depth - Maximum depth of dump. Use ACPI_UINT32_MAX - * for an effectively unlimited depth. - * owner_id - Dump only objects owned by this ID. Use - * ACPI_UINT32_MAX to match all owners. - * start_handle - Where in namespace to start/end search - * - * RETURN: None - * - * DESCRIPTION: Dump typed objects within the loaded namespace. - * Uses acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object. - * - ******************************************************************************/ - -void -acpi_ns_dump_objects(acpi_object_type type, - u8 display_type, - u32 max_depth, - acpi_owner_id owner_id, acpi_handle start_handle) -{ - struct acpi_walk_info info; - - ACPI_FUNCTION_ENTRY(); - - info.debug_level = ACPI_LV_TABLES; - info.owner_id = owner_id; - info.display_type = display_type; - - (void)acpi_ns_walk_namespace(type, start_handle, max_depth, - ACPI_NS_WALK_NO_UNLOCK | - ACPI_NS_WALK_TEMP_NODES, - acpi_ns_dump_one_object, (void *)&info, - NULL); -} -#endif /* ACPI_FUTURE_USAGE */ - -/******************************************************************************* - * - * FUNCTION: acpi_ns_dump_entry - * - * PARAMETERS: Handle - Node to be dumped - * debug_level - Output level - * - * RETURN: None - * - * DESCRIPTION: Dump a single Node - * - ******************************************************************************/ - -void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level) -{ - struct acpi_walk_info info; - - ACPI_FUNCTION_ENTRY(); - - info.debug_level = debug_level; - info.owner_id = ACPI_OWNER_ID_MAX; - info.display_type = ACPI_DISPLAY_SUMMARY; - - (void)acpi_ns_dump_one_object(handle, 1, &info, NULL); -} - -#ifdef ACPI_ASL_COMPILER -/******************************************************************************* - * - * FUNCTION: acpi_ns_dump_tables - * - * PARAMETERS: search_base - Root of subtree to be dumped, or - * NS_ALL to dump the entire namespace - * max_depth - Maximum depth of dump. Use INT_MAX - * for an effectively unlimited depth. - * - * RETURN: None - * - * DESCRIPTION: Dump the name space, or a portion of it. - * - ******************************************************************************/ - -void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth) -{ - acpi_handle search_handle = search_base; - - ACPI_FUNCTION_TRACE(ns_dump_tables); - - if (!acpi_gbl_root_node) { - /* - * If the name space has not been initialized, - * there is nothing to dump. - */ - ACPI_DEBUG_PRINT((ACPI_DB_TABLES, - "namespace not initialized!\n")); - return_VOID; - } - - if (ACPI_NS_ALL == search_base) { - - /* Entire namespace */ - - search_handle = acpi_gbl_root_node; - ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n")); - } - - acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth, - ACPI_OWNER_ID_MAX, search_handle); - return_VOID; -} -#endif /* _ACPI_ASL_COMPILER */ -#endif /* defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) */ diff --git a/drivers/acpi/namespace/nsdumpdv.c b/drivers/acpi/namespace/nsdumpdv.c deleted file mode 100644 index cc3df78258e..00000000000 --- a/drivers/acpi/namespace/nsdumpdv.c +++ /dev/null @@ -1,141 +0,0 @@ -/****************************************************************************** - * - * Module Name: nsdump - table dumping routines for debug - * - *****************************************************************************/ - -/* - * 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> - -/* TBD: This entire module is apparently obsolete and should be removed */ - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsdumpdv") -#ifdef ACPI_OBSOLETE_FUNCTIONS -#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) -#include <acpi/acnamesp.h> -/******************************************************************************* - * - * FUNCTION: acpi_ns_dump_one_device - * - * PARAMETERS: Handle - Node to be dumped - * Level - Nesting level of the handle - * Context - Passed into walk_namespace - * return_value - Not used - * - * RETURN: Status - * - * DESCRIPTION: Dump a single Node that represents a device - * This procedure is a user_function called by acpi_ns_walk_namespace. - * - ******************************************************************************/ -static acpi_status -acpi_ns_dump_one_device(acpi_handle obj_handle, - u32 level, void *context, void **return_value) -{ - struct acpi_buffer buffer; - struct acpi_device_info *info; - acpi_status status; - u32 i; - - ACPI_FUNCTION_NAME(ns_dump_one_device); - - status = - acpi_ns_dump_one_object(obj_handle, level, context, return_value); - - buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - status = acpi_get_object_info(obj_handle, &buffer); - if (ACPI_SUCCESS(status)) { - info = buffer.pointer; - for (i = 0; i < level; i++) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, " ")); - } - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, - " HID: %s, ADR: %8.8X%8.8X, Status: %X\n", - info->hardware_id.value, - ACPI_FORMAT_UINT64(info->address), - info->current_status)); - ACPI_FREE(info); - } - - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_dump_root_devices - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Dump all objects of type "device" - * - ******************************************************************************/ - -void acpi_ns_dump_root_devices(void) -{ - acpi_handle sys_bus_handle; - acpi_status status; - - ACPI_FUNCTION_NAME(ns_dump_root_devices); - - /* Only dump the table if tracing is enabled */ - - if (!(ACPI_LV_TABLES & acpi_dbg_level)) { - return; - } - - status = acpi_get_handle(NULL, ACPI_NS_SYSTEM_BUS, &sys_bus_handle); - if (ACPI_FAILURE(status)) { - return; - } - - ACPI_DEBUG_PRINT((ACPI_DB_TABLES, - "Display of all devices in the namespace:\n")); - - status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, sys_bus_handle, - ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK, - acpi_ns_dump_one_device, NULL, NULL); -} - -#endif -#endif diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c deleted file mode 100644 index a8d7764c73b..00000000000 --- a/drivers/acpi/namespace/nseval.c +++ /dev/null @@ -1,278 +0,0 @@ -/******************************************************************************* - * - * Module Name: nseval - Object evaluation, includes control method execution - * - ******************************************************************************/ - -/* - * 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/acparser.h> -#include <acpi/acinterp.h> -#include <acpi/acnamesp.h> - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nseval") - -/******************************************************************************* - * - * FUNCTION: acpi_ns_evaluate - * - * PARAMETERS: Info - Evaluation info block, contains: - * prefix_node - Prefix or Method/Object Node to execute - * Pathname - Name of method to execute, If NULL, the - * Node is the object to execute - * Parameters - List of parameters to pass to the method, - * terminated by NULL. Params itself may be - * NULL if no parameters are being passed. - * return_object - Where to put method's return value (if - * any). If NULL, no value is returned. - * parameter_type - Type of Parameter list - * return_object - Where to put method's return value (if - * any). If NULL, no value is returned. - * Flags - ACPI_IGNORE_RETURN_VALUE to delete return - * - * RETURN: Status - * - * DESCRIPTION: Execute a control method or return the current value of an - * ACPI namespace object. - * - * MUTEX: Locks interpreter - * - ******************************************************************************/ -acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info) -{ - acpi_status status; - struct acpi_namespace_node *node; - - ACPI_FUNCTION_TRACE(ns_evaluate); - - if (!info) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Initialize the return value to an invalid object */ - - info->return_object = NULL; - info->param_count = 0; - - /* - * Get the actual namespace node for the target object. Handles these cases: - * - * 1) Null node, Pathname (absolute path) - * 2) Node, Pathname (path relative to Node) - * 3) Node, Null Pathname - */ - status = acpi_ns_get_node(info->prefix_node, info->pathname, - ACPI_NS_NO_UPSEARCH, &info->resolved_node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * For a method alias, we must grab the actual method node so that proper - * scoping context will be established before execution. - */ - if (acpi_ns_get_type(info->resolved_node) == - ACPI_TYPE_LOCAL_METHOD_ALIAS) { - info->resolved_node = - ACPI_CAST_PTR(struct acpi_namespace_node, - info->resolved_node->object); - } - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n", info->pathname, - info->resolved_node, - acpi_ns_get_attached_object(info->resolved_node))); - - node = info->resolved_node; - - /* - * Two major cases here: - * - * 1) The object is a control method -- execute it - * 2) The object is not a method -- just return it's current value - */ - if (acpi_ns_get_type(info->resolved_node) == ACPI_TYPE_METHOD) { - /* - * 1) Object is a control method - execute it - */ - - /* Verify that there is a method object associated with this node */ - - info->obj_desc = - acpi_ns_get_attached_object(info->resolved_node); - if (!info->obj_desc) { - ACPI_ERROR((AE_INFO, - "Control method has no attached sub-object")); - return_ACPI_STATUS(AE_NULL_OBJECT); - } - - /* Count the number of arguments being passed to the method */ - - if (info->parameters) { - while (info->parameters[info->param_count]) { - if (info->param_count > ACPI_METHOD_MAX_ARG) { - return_ACPI_STATUS(AE_LIMIT); - } - info->param_count++; - } - } - - - ACPI_DUMP_PATHNAME(info->resolved_node, "Execute Method:", - ACPI_LV_INFO, _COMPONENT); - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Method at AML address %p Length %X\n", - info->obj_desc->method.aml_start + 1, - info->obj_desc->method.aml_length - 1)); - - /* - * Any namespace deletion must acquire both the namespace and - * interpreter locks to ensure that no thread is using the portion of - * the namespace that is being deleted. - * - * Execute the method via the interpreter. The interpreter is locked - * here before calling into the AML parser - */ - acpi_ex_enter_interpreter(); - status = acpi_ps_execute_method(info); - acpi_ex_exit_interpreter(); - } else { - /* - * 2) Object is not a method, return its current value - * - * Disallow certain object types. For these, "evaluation" is undefined. - */ - switch (info->resolved_node->type) { - case ACPI_TYPE_DEVICE: - case ACPI_TYPE_EVENT: - case ACPI_TYPE_MUTEX: - case ACPI_TYPE_REGION: - case ACPI_TYPE_THERMAL: - case ACPI_TYPE_LOCAL_SCOPE: - - ACPI_ERROR((AE_INFO, - "[%4.4s] Evaluation of object type [%s] is not supported", - info->resolved_node->name.ascii, - acpi_ut_get_type_name(info->resolved_node-> - type))); - - return_ACPI_STATUS(AE_TYPE); - - default: - break; - } - - /* - * Objects require additional resolution steps (e.g., the Node may be - * a field that must be read, etc.) -- we can't just grab the object - * out of the node. - * - * Use resolve_node_to_value() to get the associated value. - * - * NOTE: we can get away with passing in NULL for a walk state because - * resolved_node is guaranteed to not be a reference to either a method - * local or a method argument (because this interface is never called - * from a running method.) - * - * Even though we do not directly invoke the interpreter for object - * resolution, we must lock it because we could access an opregion. - * The opregion access code assumes that the interpreter is locked. - */ - acpi_ex_enter_interpreter(); - - /* Function has a strange interface */ - - status = - acpi_ex_resolve_node_to_value(&info->resolved_node, NULL); - acpi_ex_exit_interpreter(); - - /* - * If acpi_ex_resolve_node_to_value() succeeded, the return value was placed - * in resolved_node. - */ - if (ACPI_SUCCESS(status)) { - status = AE_CTRL_RETURN_VALUE; - info->return_object = - ACPI_CAST_PTR(union acpi_operand_object, - info->resolved_node); - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Returning object %p [%s]\n", - info->return_object, - acpi_ut_get_object_type_name(info-> - return_object))); - } - } - - /* - * Check input argument count against the ASL-defined count for a method. - * Also check predefined names: argument count and return value against - * the ACPI specification. Some incorrect return value types are repaired. - */ - (void)acpi_ns_check_predefined_names(node, info->param_count, - status, &info->return_object); - - /* Check if there is a return value that must be dealt with */ - - if (status == AE_CTRL_RETURN_VALUE) { - - /* If caller does not want the return value, delete it */ - - if (info->flags & ACPI_IGNORE_RETURN_VALUE) { - acpi_ut_remove_reference(info->return_object); - info->return_object = NULL; - } - - /* Map AE_CTRL_RETURN_VALUE to AE_OK, we are done with it */ - - status = AE_OK; - } - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "*** Completed evaluation of object %s ***\n", - info->pathname)); - - /* - * Namespace was unlocked by the handling acpi_ns* function, so we - * just return - */ - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/namespace/nsinit.c b/drivers/acpi/namespace/nsinit.c deleted file mode 100644 index fe470c4b38f..00000000000 --- a/drivers/acpi/namespace/nsinit.c +++ /dev/null @@ -1,593 +0,0 @@ -/****************************************************************************** - * - * Module Name: nsinit - namespace initialization - * - *****************************************************************************/ - -/* - * 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> -#include <acpi/acdispat.h> -#include <acpi/acinterp.h> -#include <linux/nmi.h> - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsinit") - -/* Local prototypes */ -static acpi_status -acpi_ns_init_one_object(acpi_handle obj_handle, - u32 level, void *context, void **return_value); - -static acpi_status -acpi_ns_init_one_device(acpi_handle obj_handle, - u32 nesting_level, void *context, void **return_value); - -static acpi_status -acpi_ns_find_ini_methods(acpi_handle obj_handle, - u32 nesting_level, void *context, void **return_value); - -/******************************************************************************* - * - * FUNCTION: acpi_ns_initialize_objects - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Walk the entire namespace and perform any necessary - * initialization on the objects found therein - * - ******************************************************************************/ - -acpi_status acpi_ns_initialize_objects(void) -{ - acpi_status status; - struct acpi_init_walk_info info; - - ACPI_FUNCTION_TRACE(ns_initialize_objects); - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "**** Starting initialization of namespace objects ****\n")); - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - "Completing Region/Field/Buffer/Package initialization:")); - - /* Set all init info to zero */ - - ACPI_MEMSET(&info, 0, sizeof(struct acpi_init_walk_info)); - - /* Walk entire namespace from the supplied root */ - - status = acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, acpi_ns_init_one_object, - &info, NULL); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace")); - } - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - "\nInitialized %hd/%hd Regions %hd/%hd Fields %hd/%hd Buffers %hd/%hd Packages (%hd nodes)\n", - info.op_region_init, info.op_region_count, - info.field_init, info.field_count, - info.buffer_init, info.buffer_count, - info.package_init, info.package_count, - info.object_count)); - - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "%hd Control Methods found\n", info.method_count)); - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "%hd Op Regions found\n", info.op_region_count)); - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_initialize_devices - * - * PARAMETERS: None - * - * RETURN: acpi_status - * - * DESCRIPTION: Walk the entire namespace and initialize all ACPI devices. - * This means running _INI on all present devices. - * - * Note: We install PCI config space handler on region access, - * not here. - * - ******************************************************************************/ - -acpi_status acpi_ns_initialize_devices(void) -{ - acpi_status status; - struct acpi_device_walk_info info; - - ACPI_FUNCTION_TRACE(ns_initialize_devices); - - /* Init counters */ - - info.device_count = 0; - info.num_STA = 0; - info.num_INI = 0; - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - "Initializing Device/Processor/Thermal objects by executing _INI methods:")); - - /* Tree analysis: find all subtrees that contain _INI methods */ - - status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, FALSE, - acpi_ns_find_ini_methods, &info, NULL); - if (ACPI_FAILURE(status)) { - goto error_exit; - } - - /* Allocate the evaluation information block */ - - info.evaluate_info = - ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); - if (!info.evaluate_info) { - status = AE_NO_MEMORY; - goto error_exit; - } - - /* Walk namespace to execute all _INIs on present devices */ - - status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, FALSE, - acpi_ns_init_one_device, &info, NULL); - - ACPI_FREE(info.evaluate_info); - if (ACPI_FAILURE(status)) { - goto error_exit; - } - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - "\nExecuted %hd _INI methods requiring %hd _STA executions (examined %hd objects)\n", - info.num_INI, info.num_STA, info.device_count)); - - return_ACPI_STATUS(status); - - error_exit: - ACPI_EXCEPTION((AE_INFO, status, "During device initialization")); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_init_one_object - * - * PARAMETERS: obj_handle - Node - * Level - Current nesting level - * Context - Points to a init info struct - * return_value - Not used - * - * RETURN: Status - * - * DESCRIPTION: Callback from acpi_walk_namespace. Invoked for every object - * within the namespace. - * - * Currently, the only objects that require initialization are: - * 1) Methods - * 2) Op Regions - * - ******************************************************************************/ - -static acpi_status -acpi_ns_init_one_object(acpi_handle obj_handle, - u32 level, void *context, void **return_value) -{ - acpi_object_type type; - acpi_status status = AE_OK; - struct acpi_init_walk_info *info = - (struct acpi_init_walk_info *)context; - struct acpi_namespace_node *node = - (struct acpi_namespace_node *)obj_handle; - union acpi_operand_object *obj_desc; - - ACPI_FUNCTION_NAME(ns_init_one_object); - - info->object_count++; - - /* And even then, we are only interested in a few object types */ - - type = acpi_ns_get_type(obj_handle); - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - return (AE_OK); - } - - /* Increment counters for object types we are looking for */ - - switch (type) { - case ACPI_TYPE_REGION: - info->op_region_count++; - break; - - case ACPI_TYPE_BUFFER_FIELD: - info->field_count++; - break; - - case ACPI_TYPE_LOCAL_BANK_FIELD: - info->field_count++; - break; - - case ACPI_TYPE_BUFFER: - info->buffer_count++; - break; - - case ACPI_TYPE_PACKAGE: - info->package_count++; - break; - - default: - - /* No init required, just exit now */ - return (AE_OK); - } - - /* - * If the object is already initialized, nothing else to do - */ - if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { - return (AE_OK); - } - - /* - * Must lock the interpreter before executing AML code - */ - acpi_ex_enter_interpreter(); - - /* - * Each of these types can contain executable AML code within the - * declaration. - */ - switch (type) { - case ACPI_TYPE_REGION: - - info->op_region_init++; - status = acpi_ds_get_region_arguments(obj_desc); - break; - - case ACPI_TYPE_BUFFER_FIELD: - - info->field_init++; - status = acpi_ds_get_buffer_field_arguments(obj_desc); - break; - - case ACPI_TYPE_LOCAL_BANK_FIELD: - - info->field_init++; - status = acpi_ds_get_bank_field_arguments(obj_desc); - break; - - case ACPI_TYPE_BUFFER: - - info->buffer_init++; - status = acpi_ds_get_buffer_arguments(obj_desc); - break; - - case ACPI_TYPE_PACKAGE: - - info->package_init++; - status = acpi_ds_get_package_arguments(obj_desc); - break; - - default: - /* No other types can get here */ - break; - } - - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Could not execute arguments for [%4.4s] (%s)", - acpi_ut_get_node_name(node), - acpi_ut_get_type_name(type))); - } - - /* - * Print a dot for each object unless we are going to print the entire - * pathname - */ - if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, ".")); - } - - /* - * We ignore errors from above, and always return OK, since we don't want - * to abort the walk on any single error. - */ - acpi_ex_exit_interpreter(); - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_find_ini_methods - * - * PARAMETERS: acpi_walk_callback - * - * RETURN: acpi_status - * - * DESCRIPTION: Called during namespace walk. Finds objects named _INI under - * device/processor/thermal objects, and marks the entire subtree - * with a SUBTREE_HAS_INI flag. This flag is used during the - * subsequent device initialization walk to avoid entire subtrees - * that do not contain an _INI. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_find_ini_methods(acpi_handle obj_handle, - u32 nesting_level, void *context, void **return_value) -{ - struct acpi_device_walk_info *info = - ACPI_CAST_PTR(struct acpi_device_walk_info, context); - struct acpi_namespace_node *node; - struct acpi_namespace_node *parent_node; - - /* Keep count of device/processor/thermal objects */ - - node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle); - if ((node->type == ACPI_TYPE_DEVICE) || - (node->type == ACPI_TYPE_PROCESSOR) || - (node->type == ACPI_TYPE_THERMAL)) { - info->device_count++; - return (AE_OK); - } - - /* We are only looking for methods named _INI */ - - if (!ACPI_COMPARE_NAME(node->name.ascii, METHOD_NAME__INI)) { - return (AE_OK); - } - - /* - * The only _INI methods that we care about are those that are - * present under Device, Processor, and Thermal objects. - */ - parent_node = acpi_ns_get_parent_node(node); - switch (parent_node->type) { - case ACPI_TYPE_DEVICE: - case ACPI_TYPE_PROCESSOR: - case ACPI_TYPE_THERMAL: - - /* Mark parent and bubble up the INI present flag to the root */ - - while (parent_node) { - parent_node->flags |= ANOBJ_SUBTREE_HAS_INI; - parent_node = acpi_ns_get_parent_node(parent_node); - } - break; - - default: - break; - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_init_one_device - * - * PARAMETERS: acpi_walk_callback - * - * RETURN: acpi_status - * - * DESCRIPTION: This is called once per device soon after ACPI is enabled - * to initialize each device. It determines if the device is - * present, and if so, calls _INI. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_init_one_device(acpi_handle obj_handle, - u32 nesting_level, void *context, void **return_value) -{ - struct acpi_device_walk_info *walk_info = - ACPI_CAST_PTR(struct acpi_device_walk_info, context); - struct acpi_evaluate_info *info = walk_info->evaluate_info; - u32 flags; - acpi_status status; - struct acpi_namespace_node *device_node; - - ACPI_FUNCTION_TRACE(ns_init_one_device); - - /* We are interested in Devices, Processors and thermal_zones only */ - - device_node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle); - if ((device_node->type != ACPI_TYPE_DEVICE) && - (device_node->type != ACPI_TYPE_PROCESSOR) && - (device_node->type != ACPI_TYPE_THERMAL)) { - return_ACPI_STATUS(AE_OK); - } - - /* - * Because of an earlier namespace analysis, all subtrees that contain an - * _INI method are tagged. - * - * If this device subtree does not contain any _INI methods, we - * can exit now and stop traversing this entire subtree. - */ - if (!(device_node->flags & ANOBJ_SUBTREE_HAS_INI)) { - return_ACPI_STATUS(AE_CTRL_DEPTH); - } - - /* - * Run _STA to determine if this device is present and functioning. We - * must know this information for two important reasons (from ACPI spec): - * - * 1) We can only run _INI if the device is present. - * 2) We must abort the device tree walk on this subtree if the device is - * not present and is not functional (we will not examine the children) - * - * The _STA method is not required to be present under the device, we - * assume the device is present if _STA does not exist. - */ - ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname - (ACPI_TYPE_METHOD, device_node, METHOD_NAME__STA)); - - status = acpi_ut_execute_STA(device_node, &flags); - if (ACPI_FAILURE(status)) { - - /* Ignore error and move on to next device */ - - return_ACPI_STATUS(AE_OK); - } - - /* - * Flags == -1 means that _STA was not found. In this case, we assume that - * the device is both present and functional. - * - * From the ACPI spec, description of _STA: - * - * "If a device object (including the processor object) does not have an - * _STA object, then OSPM assumes that all of the above bits are set (in - * other words, the device is present, ..., and functioning)" - */ - if (flags != ACPI_UINT32_MAX) { - walk_info->num_STA++; - } - - /* - * Examine the PRESENT and FUNCTIONING status bits - * - * Note: ACPI spec does not seem to specify behavior for the present but - * not functioning case, so we assume functioning if present. - */ - if (!(flags & ACPI_STA_DEVICE_PRESENT)) { - - /* Device is not present, we must examine the Functioning bit */ - - if (flags & ACPI_STA_DEVICE_FUNCTIONING) { - /* - * Device is not present but is "functioning". In this case, - * we will not run _INI, but we continue to examine the children - * of this device. - * - * From the ACPI spec, description of _STA: (Note - no mention - * of whether to run _INI or not on the device in question) - * - * "_STA may return bit 0 clear (not present) with bit 3 set - * (device is functional). This case is used to indicate a valid - * device for which no device driver should be loaded (for example, - * a bridge device.) Children of this device may be present and - * valid. OSPM should continue enumeration below a device whose - * _STA returns this bit combination" - */ - return_ACPI_STATUS(AE_OK); - } else { - /* - * Device is not present and is not functioning. We must abort the - * walk of this subtree immediately -- don't look at the children - * of such a device. - * - * From the ACPI spec, description of _INI: - * - * "If the _STA method indicates that the device is not present, - * OSPM will not run the _INI and will not examine the children - * of the device for _INI methods" - */ - return_ACPI_STATUS(AE_CTRL_DEPTH); - } - } - - /* - * The device is present or is assumed present if no _STA exists. - * Run the _INI if it exists (not required to exist) - * - * Note: We know there is an _INI within this subtree, but it may not be - * under this particular device, it may be lower in the branch. - */ - ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname - (ACPI_TYPE_METHOD, device_node, METHOD_NAME__INI)); - - info->prefix_node = device_node; - info->pathname = METHOD_NAME__INI; - info->parameters = NULL; - info->flags = ACPI_IGNORE_RETURN_VALUE; - - /* - * Some hardware relies on this being executed as atomically - * as possible (without an NMI being received in the middle of - * this) - so disable NMIs and initialize the device: - */ - acpi_nmi_disable(); - status = acpi_ns_evaluate(info); - acpi_nmi_enable(); - - if (ACPI_SUCCESS(status)) { - walk_info->num_INI++; - - if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) && - (!(acpi_dbg_level & ACPI_LV_INFO))) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, ".")); - } - } -#ifdef ACPI_DEBUG_OUTPUT - else if (status != AE_NOT_FOUND) { - - /* Ignore error and move on to next device */ - - char *scope_name = - acpi_ns_get_external_pathname(info->resolved_node); - - ACPI_EXCEPTION((AE_INFO, status, "during %s._INI execution", - scope_name)); - ACPI_FREE(scope_name); - } -#endif - - /* Ignore errors from above */ - - status = AE_OK; - - /* - * The _INI method has been run if present; call the Global Initialization - * Handler for this device. - */ - if (acpi_gbl_init_handler) { - status = - acpi_gbl_init_handler(device_node, ACPI_INIT_DEVICE_INI); - } - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/namespace/nsload.c b/drivers/acpi/namespace/nsload.c deleted file mode 100644 index a6e92b31a06..00000000000 --- a/drivers/acpi/namespace/nsload.c +++ /dev/null @@ -1,315 +0,0 @@ -/****************************************************************************** - * - * Module Name: nsload - namespace loading/expanding/contracting procedures - * - *****************************************************************************/ - -/* - * 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> -#include <acpi/acdispat.h> -#include <acpi/actables.h> - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsload") - -/* Local prototypes */ -#ifdef ACPI_FUTURE_IMPLEMENTATION -acpi_status acpi_ns_unload_namespace(acpi_handle handle); - -static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle); -#endif - -#ifndef ACPI_NO_METHOD_EXECUTION -/******************************************************************************* - * - * FUNCTION: acpi_ns_load_table - * - * PARAMETERS: table_index - Index for table to be loaded - * Node - Owning NS node - * - * RETURN: Status - * - * DESCRIPTION: Load one ACPI table into the namespace - * - ******************************************************************************/ - -acpi_status -acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ns_load_table); - - /* - * Parse the table and load the namespace with all named - * objects found within. Control methods are NOT parsed - * at this time. In fact, the control methods cannot be - * parsed until the entire namespace is loaded, because - * if a control method makes a forward reference (call) - * to another control method, we can't continue parsing - * because we don't know how many arguments to parse next! - */ - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* If table already loaded into namespace, just return */ - - if (acpi_tb_is_table_loaded(table_index)) { - status = AE_ALREADY_EXISTS; - goto unlock; - } - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "**** Loading table into namespace ****\n")); - - status = acpi_tb_allocate_owner_id(table_index); - if (ACPI_FAILURE(status)) { - goto unlock; - } - - status = acpi_ns_parse_table(table_index, node); - if (ACPI_SUCCESS(status)) { - acpi_tb_set_table_loaded_flag(table_index, TRUE); - } else { - (void)acpi_tb_release_owner_id(table_index); - } - - unlock: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Now we can parse the control methods. We always parse - * them here for a sanity check, and if configured for - * just-in-time parsing, we delete the control method - * parse trees. - */ - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "**** Begin Table Method Parsing and Object Initialization ****\n")); - - status = acpi_ds_initialize_objects(table_index, node); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "**** Completed Table Method Parsing and Object Initialization ****\n")); - - return_ACPI_STATUS(status); -} - -#ifdef ACPI_OBSOLETE_FUNCTIONS -/******************************************************************************* - * - * FUNCTION: acpi_load_namespace - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Load the name space from what ever is pointed to by DSDT. - * (DSDT points to either the BIOS or a buffer.) - * - ******************************************************************************/ - -acpi_status acpi_ns_load_namespace(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_load_name_space); - - /* There must be at least a DSDT installed */ - - if (acpi_gbl_DSDT == NULL) { - ACPI_ERROR((AE_INFO, "DSDT is not in memory")); - return_ACPI_STATUS(AE_NO_ACPI_TABLES); - } - - /* - * Load the namespace. The DSDT is required, - * but the SSDT and PSDT tables are optional. - */ - status = acpi_ns_load_table_by_type(ACPI_TABLE_ID_DSDT); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Ignore exceptions from these */ - - (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_SSDT); - (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_PSDT); - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - "ACPI Namespace successfully loaded at root %p\n", - acpi_gbl_root_node)); - - return_ACPI_STATUS(status); -} -#endif - -#ifdef ACPI_FUTURE_IMPLEMENTATION -/******************************************************************************* - * - * FUNCTION: acpi_ns_delete_subtree - * - * PARAMETERS: start_handle - Handle in namespace where search begins - * - * RETURNS Status - * - * DESCRIPTION: Walks the namespace starting at the given handle and deletes - * all objects, entries, and scopes in the entire subtree. - * - * Namespace/Interpreter should be locked or the subsystem should - * be in shutdown before this routine is called. - * - ******************************************************************************/ - -static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle) -{ - acpi_status status; - acpi_handle child_handle; - acpi_handle parent_handle; - acpi_handle next_child_handle; - acpi_handle dummy; - u32 level; - - ACPI_FUNCTION_TRACE(ns_delete_subtree); - - parent_handle = start_handle; - child_handle = NULL; - level = 1; - - /* - * Traverse the tree of objects until we bubble back up - * to where we started. - */ - while (level > 0) { - - /* Attempt to get the next object in this scope */ - - status = acpi_get_next_object(ACPI_TYPE_ANY, parent_handle, - child_handle, &next_child_handle); - - child_handle = next_child_handle; - - /* Did we get a new object? */ - - if (ACPI_SUCCESS(status)) { - - /* Check if this object has any children */ - - if (ACPI_SUCCESS - (acpi_get_next_object - (ACPI_TYPE_ANY, child_handle, NULL, &dummy))) { - /* - * There is at least one child of this object, - * visit the object - */ - level++; - parent_handle = child_handle; - child_handle = NULL; - } - } else { - /* - * No more children in this object, go back up to - * the object's parent - */ - level--; - - /* Delete all children now */ - - acpi_ns_delete_children(child_handle); - - child_handle = parent_handle; - status = acpi_get_parent(parent_handle, &parent_handle); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - } - - /* Now delete the starting object, and we are done */ - - acpi_ns_delete_node(child_handle); - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_unload_name_space - * - * PARAMETERS: Handle - Root of namespace subtree to be deleted - * - * RETURN: Status - * - * DESCRIPTION: Shrinks the namespace, typically in response to an undocking - * event. Deletes an entire subtree starting from (and - * including) the given handle. - * - ******************************************************************************/ - -acpi_status acpi_ns_unload_namespace(acpi_handle handle) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ns_unload_name_space); - - /* Parameter validation */ - - if (!acpi_gbl_root_node) { - return_ACPI_STATUS(AE_NO_NAMESPACE); - } - - if (!handle) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* This function does the real work */ - - status = acpi_ns_delete_subtree(handle); - - return_ACPI_STATUS(status); -} -#endif -#endif diff --git a/drivers/acpi/namespace/nsnames.c b/drivers/acpi/namespace/nsnames.c deleted file mode 100644 index b7e301848ba..00000000000 --- a/drivers/acpi/namespace/nsnames.c +++ /dev/null @@ -1,265 +0,0 @@ -/******************************************************************************* - * - * Module Name: nsnames - Name manipulation and search - * - ******************************************************************************/ - -/* - * 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/amlcode.h> -#include <acpi/acnamesp.h> - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsnames") - -/******************************************************************************* - * - * FUNCTION: acpi_ns_build_external_path - * - * PARAMETERS: Node - NS node whose pathname is needed - * Size - Size of the pathname - * *name_buffer - Where to return the pathname - * - * RETURN: Status - * Places the pathname into the name_buffer, in external format - * (name segments separated by path separators) - * - * DESCRIPTION: Generate a full pathaname - * - ******************************************************************************/ -acpi_status -acpi_ns_build_external_path(struct acpi_namespace_node *node, - acpi_size size, char *name_buffer) -{ - acpi_size index; - struct acpi_namespace_node *parent_node; - - ACPI_FUNCTION_ENTRY(); - - /* Special case for root */ - - index = size - 1; - if (index < ACPI_NAME_SIZE) { - name_buffer[0] = AML_ROOT_PREFIX; - name_buffer[1] = 0; - return (AE_OK); - } - - /* Store terminator byte, then build name backwards */ - - parent_node = node; - name_buffer[index] = 0; - - while ((index > ACPI_NAME_SIZE) && (parent_node != acpi_gbl_root_node)) { - index -= ACPI_NAME_SIZE; - - /* Put the name into the buffer */ - - ACPI_MOVE_32_TO_32((name_buffer + index), &parent_node->name); - parent_node = acpi_ns_get_parent_node(parent_node); - - /* Prefix name with the path separator */ - - index--; - name_buffer[index] = ACPI_PATH_SEPARATOR; - } - - /* Overwrite final separator with the root prefix character */ - - name_buffer[index] = AML_ROOT_PREFIX; - - if (index != 0) { - ACPI_ERROR((AE_INFO, - "Could not construct external pathname; index=%X, size=%X, Path=%s", - (u32) index, (u32) size, &name_buffer[size])); - - return (AE_BAD_PARAMETER); - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_external_pathname - * - * PARAMETERS: Node - Namespace node whose pathname is needed - * - * RETURN: Pointer to storage containing the fully qualified name of - * the node, In external format (name segments separated by path - * separators.) - * - * DESCRIPTION: Used for debug printing in acpi_ns_search_table(). - * - ******************************************************************************/ - -char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node) -{ - acpi_status status; - char *name_buffer; - acpi_size size; - - ACPI_FUNCTION_TRACE_PTR(ns_get_external_pathname, node); - - /* Calculate required buffer size based on depth below root */ - - size = acpi_ns_get_pathname_length(node); - if (!size) { - return_PTR(NULL); - } - - /* Allocate a buffer to be returned to caller */ - - name_buffer = ACPI_ALLOCATE_ZEROED(size); - if (!name_buffer) { - ACPI_ERROR((AE_INFO, "Allocation failure")); - return_PTR(NULL); - } - - /* Build the path in the allocated buffer */ - - status = acpi_ns_build_external_path(node, size, name_buffer); - if (ACPI_FAILURE(status)) { - ACPI_FREE(name_buffer); - return_PTR(NULL); - } - - return_PTR(name_buffer); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_pathname_length - * - * PARAMETERS: Node - Namespace node - * - * RETURN: Length of path, including prefix - * - * DESCRIPTION: Get the length of the pathname string for this node - * - ******************************************************************************/ - -acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node) -{ - acpi_size size; - struct acpi_namespace_node *next_node; - - ACPI_FUNCTION_ENTRY(); - - /* - * Compute length of pathname as 5 * number of name segments. - * Go back up the parent tree to the root - */ - size = 0; - next_node = node; - - while (next_node && (next_node != acpi_gbl_root_node)) { - if (ACPI_GET_DESCRIPTOR_TYPE(next_node) != ACPI_DESC_TYPE_NAMED) { - ACPI_ERROR((AE_INFO, - "Invalid Namespace Node (%p) while traversing namespace", - next_node)); - return 0; - } - size += ACPI_PATH_SEGMENT_LENGTH; - next_node = acpi_ns_get_parent_node(next_node); - } - - if (!size) { - size = 1; /* Root node case */ - } - - return (size + 1); /* +1 for null string terminator */ -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_handle_to_pathname - * - * PARAMETERS: target_handle - Handle of named object whose name is - * to be found - * Buffer - Where the pathname is returned - * - * RETURN: Status, Buffer is filled with pathname if status is AE_OK - * - * DESCRIPTION: Build and return a full namespace pathname - * - ******************************************************************************/ - -acpi_status -acpi_ns_handle_to_pathname(acpi_handle target_handle, - struct acpi_buffer * buffer) -{ - acpi_status status; - struct acpi_namespace_node *node; - acpi_size required_size; - - ACPI_FUNCTION_TRACE_PTR(ns_handle_to_pathname, target_handle); - - node = acpi_ns_map_handle_to_node(target_handle); - if (!node) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Determine size required for the caller buffer */ - - required_size = acpi_ns_get_pathname_length(node); - if (!required_size) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Validate/Allocate/Clear caller buffer */ - - status = acpi_ut_initialize_buffer(buffer, required_size); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Build the path in the caller buffer */ - - status = - acpi_ns_build_external_path(node, required_size, buffer->pointer); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%s [%X]\n", - (char *)buffer->pointer, (u32) required_size)); - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/namespace/nsobject.c b/drivers/acpi/namespace/nsobject.c deleted file mode 100644 index ca9edeea27d..00000000000 --- a/drivers/acpi/namespace/nsobject.c +++ /dev/null @@ -1,441 +0,0 @@ -/******************************************************************************* - * - * Module Name: nsobject - Utilities for objects attached to namespace - * table entries - * - ******************************************************************************/ - -/* - * 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("nsobject") - -/******************************************************************************* - * - * FUNCTION: acpi_ns_attach_object - * - * PARAMETERS: Node - Parent Node - * Object - Object to be attached - * Type - Type of object, or ACPI_TYPE_ANY if not - * known - * - * RETURN: Status - * - * DESCRIPTION: Record the given object as the value associated with the - * name whose acpi_handle is passed. If Object is NULL - * and Type is ACPI_TYPE_ANY, set the name as having no value. - * Note: Future may require that the Node->Flags field be passed - * as a parameter. - * - * MUTEX: Assumes namespace is locked - * - ******************************************************************************/ -acpi_status -acpi_ns_attach_object(struct acpi_namespace_node *node, - union acpi_operand_object *object, acpi_object_type type) -{ - union acpi_operand_object *obj_desc; - union acpi_operand_object *last_obj_desc; - acpi_object_type object_type = ACPI_TYPE_ANY; - - ACPI_FUNCTION_TRACE(ns_attach_object); - - /* - * Parameter validation - */ - if (!node) { - - /* Invalid handle */ - - ACPI_ERROR((AE_INFO, "Null NamedObj handle")); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (!object && (ACPI_TYPE_ANY != type)) { - - /* Null object */ - - ACPI_ERROR((AE_INFO, - "Null object, but type not ACPI_TYPE_ANY")); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) { - - /* Not a name handle */ - - ACPI_ERROR((AE_INFO, "Invalid handle %p [%s]", - node, acpi_ut_get_descriptor_name(node))); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Check if this object is already attached */ - - if (node->object == object) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Obj %p already installed in NameObj %p\n", - object, node)); - - return_ACPI_STATUS(AE_OK); - } - - /* If null object, we will just install it */ - - if (!object) { - obj_desc = NULL; - object_type = ACPI_TYPE_ANY; - } - - /* - * If the source object is a namespace Node with an attached object, - * we will use that (attached) object - */ - else if ((ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) && - ((struct acpi_namespace_node *)object)->object) { - /* - * Value passed is a name handle and that name has a - * non-null value. Use that name's value and type. - */ - obj_desc = ((struct acpi_namespace_node *)object)->object; - object_type = ((struct acpi_namespace_node *)object)->type; - } - - /* - * Otherwise, we will use the parameter object, but we must type - * it first - */ - else { - obj_desc = (union acpi_operand_object *)object; - - /* Use the given type */ - - object_type = type; - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Installing %p into Node %p [%4.4s]\n", - obj_desc, node, acpi_ut_get_node_name(node))); - - /* Detach an existing attached object if present */ - - if (node->object) { - acpi_ns_detach_object(node); - } - - if (obj_desc) { - /* - * Must increment the new value's reference count - * (if it is an internal object) - */ - acpi_ut_add_reference(obj_desc); - - /* - * Handle objects with multiple descriptors - walk - * to the end of the descriptor list - */ - last_obj_desc = obj_desc; - while (last_obj_desc->common.next_object) { - last_obj_desc = last_obj_desc->common.next_object; - } - - /* Install the object at the front of the object list */ - - last_obj_desc->common.next_object = node->object; - } - - node->type = (u8) object_type; - node->object = obj_desc; - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_detach_object - * - * PARAMETERS: Node - A Namespace node whose object will be detached - * - * RETURN: None. - * - * DESCRIPTION: Detach/delete an object associated with a namespace node. - * if the object is an allocated object, it is freed. - * Otherwise, the field is simply cleared. - * - ******************************************************************************/ - -void acpi_ns_detach_object(struct acpi_namespace_node *node) -{ - union acpi_operand_object *obj_desc; - - ACPI_FUNCTION_TRACE(ns_detach_object); - - obj_desc = node->object; - - if (!obj_desc || - (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA)) { - return_VOID; - } - - /* Clear the entry in all cases */ - - node->object = NULL; - if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_OPERAND) { - node->object = obj_desc->common.next_object; - if (node->object && - (ACPI_GET_OBJECT_TYPE(node->object) != - ACPI_TYPE_LOCAL_DATA)) { - node->object = node->object->common.next_object; - } - } - - /* Reset the node type to untyped */ - - node->type = ACPI_TYPE_ANY; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Node %p [%4.4s] Object %p\n", - node, acpi_ut_get_node_name(node), obj_desc)); - - /* Remove one reference on the object (and all subobjects) */ - - acpi_ut_remove_reference(obj_desc); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_attached_object - * - * PARAMETERS: Node - Namespace node - * - * RETURN: Current value of the object field from the Node whose - * handle is passed - * - * DESCRIPTION: Obtain the object attached to a namespace node. - * - ******************************************************************************/ - -union acpi_operand_object *acpi_ns_get_attached_object(struct - acpi_namespace_node - *node) -{ - ACPI_FUNCTION_TRACE_PTR(ns_get_attached_object, node); - - if (!node) { - ACPI_WARNING((AE_INFO, "Null Node ptr")); - return_PTR(NULL); - } - - if (!node->object || - ((ACPI_GET_DESCRIPTOR_TYPE(node->object) != ACPI_DESC_TYPE_OPERAND) - && (ACPI_GET_DESCRIPTOR_TYPE(node->object) != - ACPI_DESC_TYPE_NAMED)) - || (ACPI_GET_OBJECT_TYPE(node->object) == ACPI_TYPE_LOCAL_DATA)) { - return_PTR(NULL); - } - - return_PTR(node->object); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_secondary_object - * - * PARAMETERS: Node - Namespace node - * - * RETURN: Current value of the object field from the Node whose - * handle is passed. - * - * DESCRIPTION: Obtain a secondary object associated with a namespace node. - * - ******************************************************************************/ - -union acpi_operand_object *acpi_ns_get_secondary_object(union - acpi_operand_object - *obj_desc) -{ - ACPI_FUNCTION_TRACE_PTR(ns_get_secondary_object, obj_desc); - - if ((!obj_desc) || - (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) || - (!obj_desc->common.next_object) || - (ACPI_GET_OBJECT_TYPE(obj_desc->common.next_object) == - ACPI_TYPE_LOCAL_DATA)) { - return_PTR(NULL); - } - - return_PTR(obj_desc->common.next_object); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_attach_data - * - * PARAMETERS: Node - Namespace node - * Handler - Handler to be associated with the data - * Data - Data to be attached - * - * RETURN: Status - * - * DESCRIPTION: Low-level attach data. Create and attach a Data object. - * - ******************************************************************************/ - -acpi_status -acpi_ns_attach_data(struct acpi_namespace_node *node, - acpi_object_handler handler, void *data) -{ - union acpi_operand_object *prev_obj_desc; - union acpi_operand_object *obj_desc; - union acpi_operand_object *data_desc; - - /* We only allow one attachment per handler */ - - prev_obj_desc = NULL; - obj_desc = node->object; - while (obj_desc) { - if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) && - (obj_desc->data.handler == handler)) { - return (AE_ALREADY_EXISTS); - } - - prev_obj_desc = obj_desc; - obj_desc = obj_desc->common.next_object; - } - - /* Create an internal object for the data */ - - data_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_DATA); - if (!data_desc) { - return (AE_NO_MEMORY); - } - - data_desc->data.handler = handler; - data_desc->data.pointer = data; - - /* Install the data object */ - - if (prev_obj_desc) { - prev_obj_desc->common.next_object = data_desc; - } else { - node->object = data_desc; - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_detach_data - * - * PARAMETERS: Node - Namespace node - * Handler - Handler associated with the data - * - * RETURN: Status - * - * DESCRIPTION: Low-level detach data. Delete the data node, but the caller - * is responsible for the actual data. - * - ******************************************************************************/ - -acpi_status -acpi_ns_detach_data(struct acpi_namespace_node * node, - acpi_object_handler handler) -{ - union acpi_operand_object *obj_desc; - union acpi_operand_object *prev_obj_desc; - - prev_obj_desc = NULL; - obj_desc = node->object; - while (obj_desc) { - if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) && - (obj_desc->data.handler == handler)) { - if (prev_obj_desc) { - prev_obj_desc->common.next_object = - obj_desc->common.next_object; - } else { - node->object = obj_desc->common.next_object; - } - - acpi_ut_remove_reference(obj_desc); - return (AE_OK); - } - - prev_obj_desc = obj_desc; - obj_desc = obj_desc->common.next_object; - } - - return (AE_NOT_FOUND); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_attached_data - * - * PARAMETERS: Node - Namespace node - * Handler - Handler associated with the data - * Data - Where the data is returned - * - * RETURN: Status - * - * DESCRIPTION: Low level interface to obtain data previously associated with - * a namespace node. - * - ******************************************************************************/ - -acpi_status -acpi_ns_get_attached_data(struct acpi_namespace_node * node, - acpi_object_handler handler, void **data) -{ - union acpi_operand_object *obj_desc; - - obj_desc = node->object; - while (obj_desc) { - if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) && - (obj_desc->data.handler == handler)) { - *data = obj_desc->data.pointer; - return (AE_OK); - } - - obj_desc = obj_desc->common.next_object; - } - - return (AE_NOT_FOUND); -} diff --git a/drivers/acpi/namespace/nsparse.c b/drivers/acpi/namespace/nsparse.c deleted file mode 100644 index bcfcf427c90..00000000000 --- a/drivers/acpi/namespace/nsparse.c +++ /dev/null @@ -1,204 +0,0 @@ -/****************************************************************************** - * - * Module Name: nsparse - namespace interface to AML parser - * - *****************************************************************************/ - -/* - * 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> -#include <acpi/acparser.h> -#include <acpi/acdispat.h> -#include <acpi/actables.h> - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsparse") - -/******************************************************************************* - * - * FUNCTION: ns_one_complete_parse - * - * PARAMETERS: pass_number - 1 or 2 - * table_desc - The table to be parsed. - * - * RETURN: Status - * - * DESCRIPTION: Perform one complete parse of an ACPI/AML table. - * - ******************************************************************************/ -acpi_status -acpi_ns_one_complete_parse(u32 pass_number, - u32 table_index, - struct acpi_namespace_node *start_node) -{ - union acpi_parse_object *parse_root; - acpi_status status; - u32 aml_length; - u8 *aml_start; - struct acpi_walk_state *walk_state; - struct acpi_table_header *table; - acpi_owner_id owner_id; - - ACPI_FUNCTION_TRACE(ns_one_complete_parse); - - status = acpi_tb_get_owner_id(table_index, &owner_id); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Create and init a Root Node */ - - parse_root = acpi_ps_create_scope_op(); - if (!parse_root) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Create and initialize a new walk state */ - - walk_state = acpi_ds_create_walk_state(owner_id, NULL, NULL, NULL); - if (!walk_state) { - acpi_ps_free_op(parse_root); - return_ACPI_STATUS(AE_NO_MEMORY); - } - - status = acpi_get_table_by_index(table_index, &table); - if (ACPI_FAILURE(status)) { - acpi_ds_delete_walk_state(walk_state); - acpi_ps_free_op(parse_root); - return_ACPI_STATUS(status); - } - - /* Table must consist of at least a complete header */ - - if (table->length < sizeof(struct acpi_table_header)) { - status = AE_BAD_HEADER; - } else { - aml_start = (u8 *) table + sizeof(struct acpi_table_header); - aml_length = table->length - sizeof(struct acpi_table_header); - status = acpi_ds_init_aml_walk(walk_state, parse_root, NULL, - aml_start, aml_length, NULL, - (u8) pass_number); - } - - if (ACPI_FAILURE(status)) { - acpi_ds_delete_walk_state(walk_state); - goto cleanup; - } - - /* start_node is the default location to load the table */ - - if (start_node && start_node != acpi_gbl_root_node) { - status = - acpi_ds_scope_stack_push(start_node, ACPI_TYPE_METHOD, - walk_state); - if (ACPI_FAILURE(status)) { - acpi_ds_delete_walk_state(walk_state); - goto cleanup; - } - } - - /* Parse the AML */ - - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "*PARSE* pass %d parse\n", - (unsigned)pass_number)); - status = acpi_ps_parse_aml(walk_state); - - cleanup: - acpi_ps_delete_parse_tree(parse_root); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_parse_table - * - * PARAMETERS: table_desc - An ACPI table descriptor for table to parse - * start_node - Where to enter the table into the namespace - * - * RETURN: Status - * - * DESCRIPTION: Parse AML within an ACPI table and return a tree of ops - * - ******************************************************************************/ - -acpi_status -acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ns_parse_table); - - /* - * AML Parse, pass 1 - * - * In this pass, we load most of the namespace. Control methods - * are not parsed until later. A parse tree is not created. Instead, - * each Parser Op subtree is deleted when it is finished. This saves - * a great deal of memory, and allows a small cache of parse objects - * to service the entire parse. The second pass of the parse then - * performs another complete parse of the AML. - */ - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "**** Start pass 1\n")); - status = - acpi_ns_one_complete_parse(ACPI_IMODE_LOAD_PASS1, table_index, - start_node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * AML Parse, pass 2 - * - * In this pass, we resolve forward references and other things - * that could not be completed during the first pass. - * Another complete parse of the AML is performed, but the - * overhead of this is compensated for by the fact that the - * parse objects are all cached. - */ - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "**** Start pass 2\n")); - status = - acpi_ns_one_complete_parse(ACPI_IMODE_LOAD_PASS2, table_index, - start_node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/namespace/nspredef.c b/drivers/acpi/namespace/nspredef.c deleted file mode 100644 index 1e682d03f62..00000000000 --- a/drivers/acpi/namespace/nspredef.c +++ /dev/null @@ -1,1065 +0,0 @@ -/****************************************************************************** - * - * Module Name: nspredef - Validation of ACPI predefined methods and objects - * $Revision: 1.1 $ - * - *****************************************************************************/ - -/* - * 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> -#include <acpi/acpredef.h> - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nspredef") - -/******************************************************************************* - * - * This module validates predefined ACPI objects that appear in the namespace, - * at the time they are evaluated (via acpi_evaluate_object). The purpose of this - * validation is to detect problems with BIOS-exposed predefined ACPI objects - * before the results are returned to the ACPI-related drivers. - * - * There are several areas that are validated: - * - * 1) The number of input arguments as defined by the method/object in the - * ASL is validated against the ACPI specification. - * 2) The type of the return object (if any) is validated against the ACPI - * specification. - * 3) For returned package objects, the count of package elements is - * validated, as well as the type of each package element. Nested - * packages are supported. - * - * For any problems found, a warning message is issued. - * - ******************************************************************************/ -/* Local prototypes */ -static acpi_status -acpi_ns_check_package(char *pathname, - union acpi_operand_object **return_object_ptr, - const union acpi_predefined_info *predefined); - -static acpi_status -acpi_ns_check_package_elements(char *pathname, - union acpi_operand_object **elements, - u8 type1, u32 count1, u8 type2, u32 count2); - -static acpi_status -acpi_ns_check_object_type(char *pathname, - union acpi_operand_object **return_object_ptr, - u32 expected_btypes, u32 package_index); - -static acpi_status -acpi_ns_check_reference(char *pathname, - union acpi_operand_object *return_object); - -static acpi_status -acpi_ns_repair_object(u32 expected_btypes, - u32 package_index, - union acpi_operand_object **return_object_ptr); - -/* - * Names for the types that can be returned by the predefined objects. - * Used for warning messages. Must be in the same order as the ACPI_RTYPEs - */ -static const char *acpi_rtype_names[] = { - "/Integer", - "/String", - "/Buffer", - "/Package", - "/Reference", -}; - -#define ACPI_NOT_PACKAGE ACPI_UINT32_MAX - -/******************************************************************************* - * - * FUNCTION: acpi_ns_check_predefined_names - * - * PARAMETERS: Node - Namespace node for the method/object - * return_object_ptr - Pointer to the object returned from the - * evaluation of a method or object - * - * RETURN: Status - * - * DESCRIPTION: Check an ACPI name for a match in the predefined name list. - * - ******************************************************************************/ - -acpi_status -acpi_ns_check_predefined_names(struct acpi_namespace_node *node, - u32 user_param_count, - acpi_status return_status, - union acpi_operand_object **return_object_ptr) -{ - union acpi_operand_object *return_object = *return_object_ptr; - acpi_status status = AE_OK; - const union acpi_predefined_info *predefined; - char *pathname; - - /* Match the name for this method/object against the predefined list */ - - predefined = acpi_ns_check_for_predefined_name(node); - - /* Get the full pathname to the object, for use in error messages */ - - pathname = acpi_ns_get_external_pathname(node); - if (!pathname) { - pathname = ACPI_CAST_PTR(char, predefined->info.name); - } - - /* - * Check that the parameter count for this method matches the ASL - * definition. For predefined names, ensure that both the caller and - * the method itself are in accordance with the ACPI specification. - */ - acpi_ns_check_parameter_count(pathname, node, user_param_count, - predefined); - - /* If not a predefined name, we cannot validate the return object */ - - if (!predefined) { - goto exit; - } - - /* If the method failed, we cannot validate the return object */ - - if ((return_status != AE_OK) && (return_status != AE_CTRL_RETURN_VALUE)) { - goto exit; - } - - /* - * Only validate the return value on the first successful evaluation of - * the method. This ensures that any warnings will only be emitted during - * the very first evaluation of the method/object. - */ - if (node->flags & ANOBJ_EVALUATED) { - goto exit; - } - - /* Mark the node as having been successfully evaluated */ - - node->flags |= ANOBJ_EVALUATED; - - /* - * If there is no return value, check if we require a return value for - * this predefined name. Either one return value is expected, or none, - * for both methods and other objects. - * - * Exit now if there is no return object. Warning if one was expected. - */ - if (!return_object) { - if ((predefined->info.expected_btypes) && - (!(predefined->info.expected_btypes & ACPI_RTYPE_NONE))) { - ACPI_ERROR((AE_INFO, - "%s: Missing expected return value", - pathname)); - - status = AE_AML_NO_RETURN_VALUE; - } - goto exit; - } - - /* - * We have a return value, but if one wasn't expected, just exit, this is - * not a problem - * - * For example, if the "Implicit Return" feature is enabled, methods will - * always return a value - */ - if (!predefined->info.expected_btypes) { - goto exit; - } - - /* - * Check that the type of the return object is what is expected for - * this predefined name - */ - status = acpi_ns_check_object_type(pathname, return_object_ptr, - predefined->info.expected_btypes, - ACPI_NOT_PACKAGE); - if (ACPI_FAILURE(status)) { - goto exit; - } - - /* For returned Package objects, check the type of all sub-objects */ - - if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_PACKAGE) { - status = - acpi_ns_check_package(pathname, return_object_ptr, - predefined); - } - - exit: - if (pathname != predefined->info.name) { - ACPI_FREE(pathname); - } - - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_check_parameter_count - * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) - * Node - Namespace node for the method/object - * user_param_count - Number of args passed in by the caller - * Predefined - Pointer to entry in predefined name table - * - * RETURN: None - * - * DESCRIPTION: Check that the declared (in ASL/AML) parameter count for a - * predefined name is what is expected (i.e., what is defined in - * the ACPI specification for this predefined name.) - * - ******************************************************************************/ - -void -acpi_ns_check_parameter_count(char *pathname, - struct acpi_namespace_node *node, - u32 user_param_count, - const union acpi_predefined_info *predefined) -{ - u32 param_count; - u32 required_params_current; - u32 required_params_old; - - /* Methods have 0-7 parameters. All other types have zero. */ - - param_count = 0; - if (node->type == ACPI_TYPE_METHOD) { - param_count = node->object->method.param_count; - } - - /* Argument count check for non-predefined methods/objects */ - - if (!predefined) { - /* - * Warning if too few or too many arguments have been passed by the - * caller. An incorrect number of arguments may not cause the method - * to fail. However, the method will fail if there are too few - * arguments and the method attempts to use one of the missing ones. - */ - if (user_param_count < param_count) { - ACPI_WARNING((AE_INFO, - "%s: Insufficient arguments - needs %d, found %d", - pathname, param_count, user_param_count)); - } else if (user_param_count > param_count) { - ACPI_WARNING((AE_INFO, - "%s: Excess arguments - needs %d, found %d", - pathname, param_count, user_param_count)); - } - return; - } - - /* Allow two different legal argument counts (_SCP, etc.) */ - - required_params_current = predefined->info.param_count & 0x0F; - required_params_old = predefined->info.param_count >> 4; - - if (user_param_count != ACPI_UINT32_MAX) { - - /* Validate the user-supplied parameter count */ - - if ((user_param_count != required_params_current) && - (user_param_count != required_params_old)) { - ACPI_WARNING((AE_INFO, - "%s: Parameter count mismatch - caller passed %d, ACPI requires %d", - pathname, user_param_count, - required_params_current)); - } - } - - /* - * Only validate the argument count on the first successful evaluation of - * the method. This ensures that any warnings will only be emitted during - * the very first evaluation of the method/object. - */ - if (node->flags & ANOBJ_EVALUATED) { - return; - } - - /* - * Check that the ASL-defined parameter count is what is expected for - * this predefined name. - */ - if ((param_count != required_params_current) && - (param_count != required_params_old)) { - ACPI_WARNING((AE_INFO, - "%s: Parameter count mismatch - ASL declared %d, ACPI requires %d", - pathname, param_count, required_params_current)); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_check_for_predefined_name - * - * PARAMETERS: Node - Namespace node for the method/object - * - * RETURN: Pointer to entry in predefined table. NULL indicates not found. - * - * DESCRIPTION: Check an object name against the predefined object list. - * - ******************************************************************************/ - -const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct - acpi_namespace_node - *node) -{ - const union acpi_predefined_info *this_name; - - /* Quick check for a predefined name, first character must be underscore */ - - if (node->name.ascii[0] != '_') { - return (NULL); - } - - /* Search info table for a predefined method/object name */ - - this_name = predefined_names; - while (this_name->info.name[0]) { - if (ACPI_COMPARE_NAME(node->name.ascii, this_name->info.name)) { - - /* Return pointer to this table entry */ - - return (this_name); - } - - /* - * Skip next entry in the table if this name returns a Package - * (next entry contains the package info) - */ - if (this_name->info.expected_btypes & ACPI_RTYPE_PACKAGE) { - this_name++; - } - - this_name++; - } - - return (NULL); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_check_package - * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) - * return_object_ptr - Pointer to the object returned from the - * evaluation of a method or object - * Predefined - Pointer to entry in predefined name table - * - * RETURN: Status - * - * DESCRIPTION: Check a returned package object for the correct count and - * correct type of all sub-objects. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_check_package(char *pathname, - union acpi_operand_object **return_object_ptr, - const union acpi_predefined_info *predefined) -{ - union acpi_operand_object *return_object = *return_object_ptr; - const union acpi_predefined_info *package; - union acpi_operand_object *sub_package; - union acpi_operand_object **elements; - union acpi_operand_object **sub_elements; - acpi_status status; - u32 expected_count; - u32 count; - u32 i; - u32 j; - - ACPI_FUNCTION_NAME(ns_check_package); - - /* The package info for this name is in the next table entry */ - - package = predefined + 1; - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "%s Validating return Package of Type %X, Count %X\n", - pathname, package->ret_info.type, - return_object->package.count)); - - /* Extract package count and elements array */ - - elements = return_object->package.elements; - count = return_object->package.count; - - /* The package must have at least one element, else invalid */ - - if (!count) { - ACPI_WARNING((AE_INFO, - "%s: Return Package has no elements (empty)", - pathname)); - - return (AE_AML_OPERAND_VALUE); - } - - /* - * Decode the type of the expected package contents - * - * PTYPE1 packages contain no subpackages - * PTYPE2 packages contain sub-packages - */ - switch (package->ret_info.type) { - case ACPI_PTYPE1_FIXED: - - /* - * The package count is fixed and there are no sub-packages - * - * If package is too small, exit. - * If package is larger than expected, issue warning but continue - */ - expected_count = - package->ret_info.count1 + package->ret_info.count2; - if (count < expected_count) { - goto package_too_small; - } else if (count > expected_count) { - ACPI_WARNING((AE_INFO, - "%s: Return Package is larger than needed - " - "found %u, expected %u", pathname, count, - expected_count)); - } - - /* Validate all elements of the returned package */ - - status = acpi_ns_check_package_elements(pathname, elements, - package->ret_info. - object_type1, - package->ret_info. - count1, - package->ret_info. - object_type2, - package->ret_info. - count2); - if (ACPI_FAILURE(status)) { - return (status); - } - break; - - case ACPI_PTYPE1_VAR: - - /* - * The package count is variable, there are no sub-packages, and all - * elements must be of the same type - */ - for (i = 0; i < count; i++) { - status = acpi_ns_check_object_type(pathname, elements, - package->ret_info. - object_type1, i); - if (ACPI_FAILURE(status)) { - return (status); - } - elements++; - } - break; - - case ACPI_PTYPE1_OPTION: - - /* - * The package count is variable, there are no sub-packages. There are - * a fixed number of required elements, and a variable number of - * optional elements. - * - * Check if package is at least as large as the minimum required - */ - expected_count = package->ret_info3.count; - if (count < expected_count) { - goto package_too_small; - } - - /* Variable number of sub-objects */ - - for (i = 0; i < count; i++) { - if (i < package->ret_info3.count) { - - /* These are the required package elements (0, 1, or 2) */ - - status = - acpi_ns_check_object_type(pathname, - elements, - package-> - ret_info3. - object_type[i], - i); - if (ACPI_FAILURE(status)) { - return (status); - } - } else { - /* These are the optional package elements */ - - status = - acpi_ns_check_object_type(pathname, - elements, - package-> - ret_info3. - tail_object_type, - i); - if (ACPI_FAILURE(status)) { - return (status); - } - } - elements++; - } - break; - - case ACPI_PTYPE2_PKG_COUNT: - - /* First element is the (Integer) count of sub-packages to follow */ - - status = acpi_ns_check_object_type(pathname, elements, - ACPI_RTYPE_INTEGER, 0); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* - * Count cannot be larger than the parent package length, but allow it - * to be smaller. The >= accounts for the Integer above. - */ - expected_count = (u32) (*elements)->integer.value; - if (expected_count >= count) { - goto package_too_small; - } - - count = expected_count; - elements++; - - /* Now we can walk the sub-packages */ - - /*lint -fallthrough */ - - case ACPI_PTYPE2: - case ACPI_PTYPE2_FIXED: - case ACPI_PTYPE2_MIN: - case ACPI_PTYPE2_COUNT: - - /* - * These types all return a single package that consists of a variable - * number of sub-packages - */ - for (i = 0; i < count; i++) { - sub_package = *elements; - sub_elements = sub_package->package.elements; - - /* Each sub-object must be of type Package */ - - status = - acpi_ns_check_object_type(pathname, &sub_package, - ACPI_RTYPE_PACKAGE, i); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Examine the different types of sub-packages */ - - switch (package->ret_info.type) { - case ACPI_PTYPE2: - case ACPI_PTYPE2_PKG_COUNT: - - /* Each subpackage has a fixed number of elements */ - - expected_count = - package->ret_info.count1 + - package->ret_info.count2; - if (sub_package->package.count != - expected_count) { - count = sub_package->package.count; - goto package_too_small; - } - - status = - acpi_ns_check_package_elements(pathname, - sub_elements, - package-> - ret_info. - object_type1, - package-> - ret_info. - count1, - package-> - ret_info. - object_type2, - package-> - ret_info. - count2); - if (ACPI_FAILURE(status)) { - return (status); - } - break; - - case ACPI_PTYPE2_FIXED: - - /* Each sub-package has a fixed length */ - - expected_count = package->ret_info2.count; - if (sub_package->package.count < expected_count) { - count = sub_package->package.count; - goto package_too_small; - } - - /* Check the type of each sub-package element */ - - for (j = 0; j < expected_count; j++) { - status = - acpi_ns_check_object_type(pathname, - &sub_elements[j], - package->ret_info2.object_type[j], j); - if (ACPI_FAILURE(status)) { - return (status); - } - } - break; - - case ACPI_PTYPE2_MIN: - - /* Each sub-package has a variable but minimum length */ - - expected_count = package->ret_info.count1; - if (sub_package->package.count < expected_count) { - count = sub_package->package.count; - goto package_too_small; - } - - /* Check the type of each sub-package element */ - - status = - acpi_ns_check_package_elements(pathname, - sub_elements, - package-> - ret_info. - object_type1, - sub_package-> - package. - count, 0, 0); - if (ACPI_FAILURE(status)) { - return (status); - } - break; - - case ACPI_PTYPE2_COUNT: - - /* First element is the (Integer) count of elements to follow */ - - status = - acpi_ns_check_object_type(pathname, - sub_elements, - ACPI_RTYPE_INTEGER, - 0); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Make sure package is large enough for the Count */ - - expected_count = - (u32) (*sub_elements)->integer.value; - if (sub_package->package.count < expected_count) { - count = sub_package->package.count; - goto package_too_small; - } - - /* Check the type of each sub-package element */ - - status = - acpi_ns_check_package_elements(pathname, - (sub_elements - + 1), - package-> - ret_info. - object_type1, - (expected_count - - 1), 0, 0); - if (ACPI_FAILURE(status)) { - return (status); - } - break; - - default: - break; - } - - elements++; - } - break; - - default: - - /* Should not get here if predefined info table is correct */ - - ACPI_WARNING((AE_INFO, - "%s: Invalid internal return type in table entry: %X", - pathname, package->ret_info.type)); - - return (AE_AML_INTERNAL); - } - - return (AE_OK); - - package_too_small: - - /* Error exit for the case with an incorrect package count */ - - ACPI_WARNING((AE_INFO, "%s: Return Package is too small - " - "found %u, expected %u", pathname, count, - expected_count)); - - return (AE_AML_OPERAND_VALUE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_check_package_elements - * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) - * Elements - Pointer to the package elements array - * Type1 - Object type for first group - * Count1 - Count for first group - * Type2 - Object type for second group - * Count2 - Count for second group - * - * RETURN: Status - * - * DESCRIPTION: Check that all elements of a package are of the correct object - * type. Supports up to two groups of different object types. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_check_package_elements(char *pathname, - union acpi_operand_object **elements, - u8 type1, u32 count1, u8 type2, u32 count2) -{ - union acpi_operand_object **this_element = elements; - acpi_status status; - u32 i; - - /* - * Up to two groups of package elements are supported by the data - * structure. All elements in each group must be of the same type. - * The second group can have a count of zero. - */ - for (i = 0; i < count1; i++) { - status = acpi_ns_check_object_type(pathname, this_element, - type1, i); - if (ACPI_FAILURE(status)) { - return (status); - } - this_element++; - } - - for (i = 0; i < count2; i++) { - status = acpi_ns_check_object_type(pathname, this_element, - type2, (i + count1)); - if (ACPI_FAILURE(status)) { - return (status); - } - this_element++; - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_check_object_type - * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) - * return_object_ptr - Pointer to the object returned from the - * evaluation of a method or object - * expected_btypes - Bitmap of expected return type(s) - * package_index - Index of object within parent package (if - * applicable - ACPI_NOT_PACKAGE otherwise) - * - * RETURN: Status - * - * DESCRIPTION: Check the type of the return object against the expected object - * type(s). Use of Btype allows multiple expected object types. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_check_object_type(char *pathname, - union acpi_operand_object **return_object_ptr, - u32 expected_btypes, u32 package_index) -{ - union acpi_operand_object *return_object = *return_object_ptr; - acpi_status status = AE_OK; - u32 return_btype; - char type_buffer[48]; /* Room for 5 types */ - u32 this_rtype; - u32 i; - u32 j; - - /* - * If we get a NULL return_object here, it is a NULL package element, - * and this is always an error. - */ - if (!return_object) { - goto type_error_exit; - } - - /* A Namespace node should not get here, but make sure */ - - if (ACPI_GET_DESCRIPTOR_TYPE(return_object) == ACPI_DESC_TYPE_NAMED) { - ACPI_WARNING((AE_INFO, - "%s: Invalid return type - Found a Namespace node [%4.4s] type %s", - pathname, return_object->node.name.ascii, - acpi_ut_get_type_name(return_object->node.type))); - return (AE_AML_OPERAND_TYPE); - } - - /* - * Convert the object type (ACPI_TYPE_xxx) to a bitmapped object type. - * The bitmapped type allows multiple possible return types. - * - * Note, the cases below must handle all of the possible types returned - * from all of the predefined names (including elements of returned - * packages) - */ - switch (ACPI_GET_OBJECT_TYPE(return_object)) { - case ACPI_TYPE_INTEGER: - return_btype = ACPI_RTYPE_INTEGER; - break; - - case ACPI_TYPE_BUFFER: - return_btype = ACPI_RTYPE_BUFFER; - break; - - case ACPI_TYPE_STRING: - return_btype = ACPI_RTYPE_STRING; - break; - - case ACPI_TYPE_PACKAGE: - return_btype = ACPI_RTYPE_PACKAGE; - break; - - case ACPI_TYPE_LOCAL_REFERENCE: - return_btype = ACPI_RTYPE_REFERENCE; - break; - - default: - /* Not one of the supported objects, must be incorrect */ - - goto type_error_exit; - } - - /* Is the object one of the expected types? */ - - if (!(return_btype & expected_btypes)) { - - /* Type mismatch -- attempt repair of the returned object */ - - status = acpi_ns_repair_object(expected_btypes, package_index, - return_object_ptr); - if (ACPI_SUCCESS(status)) { - return (status); - } - goto type_error_exit; - } - - /* For reference objects, check that the reference type is correct */ - - if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_LOCAL_REFERENCE) { - status = acpi_ns_check_reference(pathname, return_object); - } - - return (status); - - type_error_exit: - - /* Create a string with all expected types for this predefined object */ - - j = 1; - type_buffer[0] = 0; - this_rtype = ACPI_RTYPE_INTEGER; - - for (i = 0; i < ACPI_NUM_RTYPES; i++) { - - /* If one of the expected types, concatenate the name of this type */ - - if (expected_btypes & this_rtype) { - ACPI_STRCAT(type_buffer, &acpi_rtype_names[i][j]); - j = 0; /* Use name separator from now on */ - } - this_rtype <<= 1; /* Next Rtype */ - } - - if (package_index == ACPI_NOT_PACKAGE) { - ACPI_WARNING((AE_INFO, - "%s: Return type mismatch - found %s, expected %s", - pathname, - acpi_ut_get_object_type_name(return_object), - type_buffer)); - } else { - ACPI_WARNING((AE_INFO, - "%s: Return Package type mismatch at index %u - " - "found %s, expected %s", pathname, package_index, - acpi_ut_get_object_type_name(return_object), - type_buffer)); - } - - return (AE_AML_OPERAND_TYPE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_check_reference - * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) - * return_object - Object returned from the evaluation of a - * method or object - * - * RETURN: Status - * - * DESCRIPTION: Check a returned reference object for the correct reference - * type. The only reference type that can be returned from a - * predefined method is a named reference. All others are invalid. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_check_reference(char *pathname, - union acpi_operand_object *return_object) -{ - - /* - * Check the reference object for the correct reference type (opcode). - * The only type of reference that can be converted to an union acpi_object is - * a reference to a named object (reference class: NAME) - */ - if (return_object->reference.class == ACPI_REFCLASS_NAME) { - return (AE_OK); - } - - ACPI_WARNING((AE_INFO, - "%s: Return type mismatch - unexpected reference object type [%s] %2.2X", - pathname, acpi_ut_get_reference_name(return_object), - return_object->reference.class)); - - return (AE_AML_OPERAND_TYPE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_repair_object - * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) - * package_index - Used to determine if target is in a package - * return_object_ptr - Pointer to the object returned from the - * evaluation of a method or object - * - * RETURN: Status. AE_OK if repair was successful. - * - * DESCRIPTION: Attempt to repair/convert a return object of a type that was - * not expected. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_repair_object(u32 expected_btypes, - u32 package_index, - union acpi_operand_object **return_object_ptr) -{ - union acpi_operand_object *return_object = *return_object_ptr; - union acpi_operand_object *new_object; - acpi_size length; - - switch (ACPI_GET_OBJECT_TYPE(return_object)) { - case ACPI_TYPE_BUFFER: - - if (!(expected_btypes & ACPI_RTYPE_STRING)) { - return (AE_AML_OPERAND_TYPE); - } - - /* - * Have a Buffer, expected a String, convert. Use a to_string - * conversion, no transform performed on the buffer data. The best - * example of this is the _BIF method, where the string data from - * the battery is often (incorrectly) returned as buffer object(s). - */ - length = 0; - while ((length < return_object->buffer.length) && - (return_object->buffer.pointer[length])) { - length++; - } - - /* Allocate a new string object */ - - new_object = acpi_ut_create_string_object(length); - if (!new_object) { - return (AE_NO_MEMORY); - } - - /* - * Copy the raw buffer data with no transform. String is already NULL - * terminated at Length+1. - */ - ACPI_MEMCPY(new_object->string.pointer, - return_object->buffer.pointer, length); - - /* Install the new return object */ - - acpi_ut_remove_reference(return_object); - *return_object_ptr = new_object; - - /* - * If the object is a package element, we need to: - * 1. Decrement the reference count of the orignal object, it was - * incremented when building the package - * 2. Increment the reference count of the new object, it will be - * decremented when releasing the package - */ - if (package_index != ACPI_NOT_PACKAGE) { - acpi_ut_remove_reference(return_object); - acpi_ut_add_reference(new_object); - } - return (AE_OK); - - default: - break; - } - - return (AE_AML_OPERAND_TYPE); -} diff --git a/drivers/acpi/namespace/nssearch.c b/drivers/acpi/namespace/nssearch.c deleted file mode 100644 index a76c731e3ba..00000000000 --- a/drivers/acpi/namespace/nssearch.c +++ /dev/null @@ -1,415 +0,0 @@ -/******************************************************************************* - * - * Module Name: nssearch - Namespace search - * - ******************************************************************************/ - -/* - * 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("nssearch") - -/* Local prototypes */ -static acpi_status -acpi_ns_search_parent_tree(u32 target_name, - struct acpi_namespace_node *node, - acpi_object_type type, - struct acpi_namespace_node **return_node); - -/******************************************************************************* - * - * FUNCTION: acpi_ns_search_one_scope - * - * PARAMETERS: target_name - Ascii ACPI name to search for - * parent_node - Starting node where search will begin - * Type - Object type to match - * return_node - Where the matched Named obj is returned - * - * RETURN: Status - * - * DESCRIPTION: Search a single level of the namespace. Performs a - * simple search of the specified level, and does not add - * entries or search parents. - * - * - * Named object lists are built (and subsequently dumped) in the - * order in which the names are encountered during the namespace load; - * - * All namespace searching is linear in this implementation, but - * could be easily modified to support any improved search - * algorithm. However, the linear search was chosen for simplicity - * and because the trees are small and the other interpreter - * execution overhead is relatively high. - * - * Note: CPU execution analysis has shown that the AML interpreter spends - * a very small percentage of its time searching the namespace. Therefore, - * the linear search seems to be sufficient, as there would seem to be - * little value in improving the search. - * - ******************************************************************************/ - -acpi_status -acpi_ns_search_one_scope(u32 target_name, - struct acpi_namespace_node *parent_node, - acpi_object_type type, - struct acpi_namespace_node **return_node) -{ - struct acpi_namespace_node *node; - - ACPI_FUNCTION_TRACE(ns_search_one_scope); - -#ifdef ACPI_DEBUG_OUTPUT - if (ACPI_LV_NAMES & acpi_dbg_level) { - char *scope_name; - - scope_name = acpi_ns_get_external_pathname(parent_node); - if (scope_name) { - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Searching %s (%p) For [%4.4s] (%s)\n", - scope_name, parent_node, - ACPI_CAST_PTR(char, &target_name), - acpi_ut_get_type_name(type))); - - ACPI_FREE(scope_name); - } - } -#endif - - /* - * Search for name at this namespace level, which is to say that we - * must search for the name among the children of this object - */ - node = parent_node->child; - while (node) { - - /* Check for match against the name */ - - if (node->name.integer == target_name) { - - /* Resolve a control method alias if any */ - - if (acpi_ns_get_type(node) == - ACPI_TYPE_LOCAL_METHOD_ALIAS) { - node = - ACPI_CAST_PTR(struct acpi_namespace_node, - node->object); - } - - /* Found matching entry */ - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Name [%4.4s] (%s) %p found in scope [%4.4s] %p\n", - ACPI_CAST_PTR(char, &target_name), - acpi_ut_get_type_name(node->type), - node, - acpi_ut_get_node_name(parent_node), - parent_node)); - - *return_node = node; - return_ACPI_STATUS(AE_OK); - } - - /* - * The last entry in the list points back to the parent, - * so a flag is used to indicate the end-of-list - */ - if (node->flags & ANOBJ_END_OF_PEER_LIST) { - - /* Searched entire list, we are done */ - - break; - } - - /* Didn't match name, move on to the next peer object */ - - node = node->peer; - } - - /* Searched entire namespace level, not found */ - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Name [%4.4s] (%s) not found in search in scope [%4.4s] %p first child %p\n", - ACPI_CAST_PTR(char, &target_name), - acpi_ut_get_type_name(type), - acpi_ut_get_node_name(parent_node), parent_node, - parent_node->child)); - - return_ACPI_STATUS(AE_NOT_FOUND); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_search_parent_tree - * - * PARAMETERS: target_name - Ascii ACPI name to search for - * Node - Starting node where search will begin - * Type - Object type to match - * return_node - Where the matched Node is returned - * - * RETURN: Status - * - * DESCRIPTION: Called when a name has not been found in the current namespace - * level. Before adding it or giving up, ACPI scope rules require - * searching enclosing scopes in cases identified by acpi_ns_local(). - * - * "A name is located by finding the matching name in the current - * name space, and then in the parent name space. If the parent - * name space does not contain the name, the search continues - * recursively until either the name is found or the name space - * does not have a parent (the root of the name space). This - * indicates that the name is not found" (From ACPI Specification, - * section 5.3) - * - ******************************************************************************/ - -static acpi_status -acpi_ns_search_parent_tree(u32 target_name, - struct acpi_namespace_node *node, - acpi_object_type type, - struct acpi_namespace_node **return_node) -{ - acpi_status status; - struct acpi_namespace_node *parent_node; - - ACPI_FUNCTION_TRACE(ns_search_parent_tree); - - parent_node = acpi_ns_get_parent_node(node); - - /* - * If there is no parent (i.e., we are at the root) or type is "local", - * we won't be searching the parent tree. - */ - if (!parent_node) { - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "[%4.4s] has no parent\n", - ACPI_CAST_PTR(char, &target_name))); - return_ACPI_STATUS(AE_NOT_FOUND); - } - - if (acpi_ns_local(type)) { - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "[%4.4s] type [%s] must be local to this scope (no parent search)\n", - ACPI_CAST_PTR(char, &target_name), - acpi_ut_get_type_name(type))); - return_ACPI_STATUS(AE_NOT_FOUND); - } - - /* Search the parent tree */ - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Searching parent [%4.4s] for [%4.4s]\n", - acpi_ut_get_node_name(parent_node), - ACPI_CAST_PTR(char, &target_name))); - - /* - * Search parents until target is found or we have backed up to the root - */ - while (parent_node) { - /* - * Search parent scope. Use TYPE_ANY because we don't care about the - * object type at this point, we only care about the existence of - * the actual name we are searching for. Typechecking comes later. - */ - status = - acpi_ns_search_one_scope(target_name, parent_node, - ACPI_TYPE_ANY, return_node); - if (ACPI_SUCCESS(status)) { - return_ACPI_STATUS(status); - } - - /* Not found here, go up another level (until we reach the root) */ - - parent_node = acpi_ns_get_parent_node(parent_node); - } - - /* Not found in parent tree */ - - return_ACPI_STATUS(AE_NOT_FOUND); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_search_and_enter - * - * PARAMETERS: target_name - Ascii ACPI name to search for (4 chars) - * walk_state - Current state of the walk - * Node - Starting node where search will begin - * interpreter_mode - Add names only in ACPI_MODE_LOAD_PASS_x. - * Otherwise,search only. - * Type - Object type to match - * Flags - Flags describing the search restrictions - * return_node - Where the Node is returned - * - * RETURN: Status - * - * DESCRIPTION: Search for a name segment in a single namespace level, - * optionally adding it if it is not found. If the passed - * Type is not Any and the type previously stored in the - * entry was Any (i.e. unknown), update the stored type. - * - * In ACPI_IMODE_EXECUTE, search only. - * In other modes, search and add if not found. - * - ******************************************************************************/ - -acpi_status -acpi_ns_search_and_enter(u32 target_name, - struct acpi_walk_state *walk_state, - struct acpi_namespace_node *node, - acpi_interpreter_mode interpreter_mode, - acpi_object_type type, - u32 flags, struct acpi_namespace_node **return_node) -{ - acpi_status status; - struct acpi_namespace_node *new_node; - - ACPI_FUNCTION_TRACE(ns_search_and_enter); - - /* Parameter validation */ - - if (!node || !target_name || !return_node) { - ACPI_ERROR((AE_INFO, - "Null parameter: Node %p Name %X ReturnNode %p", - node, target_name, return_node)); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * Name must consist of valid ACPI characters. We will repair the name if - * necessary because we don't want to abort because of this, but we want - * all namespace names to be printable. A warning message is appropriate. - * - * This issue came up because there are in fact machines that exhibit - * this problem, and we want to be able to enable ACPI support for them, - * even though there are a few bad names. - */ - if (!acpi_ut_valid_acpi_name(target_name)) { - target_name = - acpi_ut_repair_name(ACPI_CAST_PTR(char, &target_name)); - - /* Report warning only if in strict mode or debug mode */ - - if (!acpi_gbl_enable_interpreter_slack) { - ACPI_WARNING((AE_INFO, - "Found bad character(s) in name, repaired: [%4.4s]\n", - ACPI_CAST_PTR(char, &target_name))); - } else { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Found bad character(s) in name, repaired: [%4.4s]\n", - ACPI_CAST_PTR(char, &target_name))); - } - } - - /* Try to find the name in the namespace level specified by the caller */ - - *return_node = ACPI_ENTRY_NOT_FOUND; - status = acpi_ns_search_one_scope(target_name, node, type, return_node); - if (status != AE_NOT_FOUND) { - /* - * If we found it AND the request specifies that a find is an error, - * return the error - */ - if ((status == AE_OK) && (flags & ACPI_NS_ERROR_IF_FOUND)) { - status = AE_ALREADY_EXISTS; - } - - /* Either found it or there was an error: finished either way */ - - return_ACPI_STATUS(status); - } - - /* - * The name was not found. If we are NOT performing the first pass - * (name entry) of loading the namespace, search the parent tree (all the - * way to the root if necessary.) We don't want to perform the parent - * search when the namespace is actually being loaded. We want to perform - * the search when namespace references are being resolved (load pass 2) - * and during the execution phase. - */ - if ((interpreter_mode != ACPI_IMODE_LOAD_PASS1) && - (flags & ACPI_NS_SEARCH_PARENT)) { - /* - * Not found at this level - search parent tree according to the - * ACPI specification - */ - status = - acpi_ns_search_parent_tree(target_name, node, type, - return_node); - if (ACPI_SUCCESS(status)) { - return_ACPI_STATUS(status); - } - } - - /* In execute mode, just search, never add names. Exit now */ - - if (interpreter_mode == ACPI_IMODE_EXECUTE) { - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "%4.4s Not found in %p [Not adding]\n", - ACPI_CAST_PTR(char, &target_name), node)); - - return_ACPI_STATUS(AE_NOT_FOUND); - } - - /* Create the new named object */ - - new_node = acpi_ns_create_node(target_name); - if (!new_node) { - return_ACPI_STATUS(AE_NO_MEMORY); - } -#ifdef ACPI_ASL_COMPILER - /* - * Node is an object defined by an External() statement - */ - if (flags & ACPI_NS_EXTERNAL) { - new_node->flags |= ANOBJ_IS_EXTERNAL; - } -#endif - - if (flags & ACPI_NS_TEMPORARY) { - new_node->flags |= ANOBJ_TEMPORARY; - } - - /* Install the new object into the parent's list of children */ - - acpi_ns_install_node(walk_state, node, new_node, type); - *return_node = new_node; - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/namespace/nsutils.c b/drivers/acpi/namespace/nsutils.c deleted file mode 100644 index a443d2805d2..00000000000 --- a/drivers/acpi/namespace/nsutils.c +++ /dev/null @@ -1,997 +0,0 @@ -/****************************************************************************** - * - * Module Name: nsutils - Utilities for accessing ACPI namespace, accessing - * parents and siblings and Scope manipulation - * - *****************************************************************************/ - -/* - * 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> -#include <acpi/amlcode.h> -#include <acpi/actables.h> - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsutils") - -/* Local prototypes */ -static u8 acpi_ns_valid_path_separator(char sep); - -#ifdef ACPI_OBSOLETE_FUNCTIONS -acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node *node_to_search); -#endif - -/******************************************************************************* - * - * FUNCTION: acpi_ns_report_error - * - * PARAMETERS: module_name - Caller's module name (for error output) - * line_number - Caller's line number (for error output) - * internal_name - Name or path of the namespace node - * lookup_status - Exception code from NS lookup - * - * RETURN: None - * - * DESCRIPTION: Print warning message with full pathname - * - ******************************************************************************/ - -void -acpi_ns_report_error(const char *module_name, - u32 line_number, - const char *internal_name, acpi_status lookup_status) -{ - acpi_status status; - u32 bad_name; - char *name = NULL; - - acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number); - - if (lookup_status == AE_BAD_CHARACTER) { - - /* There is a non-ascii character in the name */ - - ACPI_MOVE_32_TO_32(&bad_name, internal_name); - acpi_os_printf("[0x%4.4X] (NON-ASCII)", bad_name); - } else { - /* Convert path to external format */ - - status = acpi_ns_externalize_name(ACPI_UINT32_MAX, - internal_name, NULL, &name); - - /* Print target name */ - - if (ACPI_SUCCESS(status)) { - acpi_os_printf("[%s]", name); - } else { - acpi_os_printf("[COULD NOT EXTERNALIZE NAME]"); - } - - if (name) { - ACPI_FREE(name); - } - } - - acpi_os_printf(" Namespace lookup failure, %s\n", - acpi_format_exception(lookup_status)); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_report_method_error - * - * PARAMETERS: module_name - Caller's module name (for error output) - * line_number - Caller's line number (for error output) - * Message - Error message to use on failure - * prefix_node - Prefix relative to the path - * Path - Path to the node (optional) - * method_status - Execution status - * - * RETURN: None - * - * DESCRIPTION: Print warning message with full pathname - * - ******************************************************************************/ - -void -acpi_ns_report_method_error(const char *module_name, - u32 line_number, - const char *message, - struct acpi_namespace_node *prefix_node, - const char *path, acpi_status method_status) -{ - acpi_status status; - struct acpi_namespace_node *node = prefix_node; - - acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number); - - if (path) { - status = - acpi_ns_get_node(prefix_node, path, ACPI_NS_NO_UPSEARCH, - &node); - if (ACPI_FAILURE(status)) { - acpi_os_printf("[Could not get node by pathname]"); - } - } - - acpi_ns_print_node_pathname(node, message); - acpi_os_printf(", %s\n", acpi_format_exception(method_status)); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_print_node_pathname - * - * PARAMETERS: Node - Object - * Message - Prefix message - * - * DESCRIPTION: Print an object's full namespace pathname - * Manages allocation/freeing of a pathname buffer - * - ******************************************************************************/ - -void -acpi_ns_print_node_pathname(struct acpi_namespace_node *node, - const char *message) -{ - struct acpi_buffer buffer; - acpi_status status; - - if (!node) { - acpi_os_printf("[NULL NAME]"); - return; - } - - /* Convert handle to full pathname and print it (with supplied message) */ - - buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - - status = acpi_ns_handle_to_pathname(node, &buffer); - if (ACPI_SUCCESS(status)) { - if (message) { - acpi_os_printf("%s ", message); - } - - acpi_os_printf("[%s] (Node %p)", (char *)buffer.pointer, node); - ACPI_FREE(buffer.pointer); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_valid_root_prefix - * - * PARAMETERS: Prefix - Character to be checked - * - * RETURN: TRUE if a valid prefix - * - * DESCRIPTION: Check if a character is a valid ACPI Root prefix - * - ******************************************************************************/ - -u8 acpi_ns_valid_root_prefix(char prefix) -{ - - return ((u8) (prefix == '\\')); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_valid_path_separator - * - * PARAMETERS: Sep - Character to be checked - * - * RETURN: TRUE if a valid path separator - * - * DESCRIPTION: Check if a character is a valid ACPI path separator - * - ******************************************************************************/ - -static u8 acpi_ns_valid_path_separator(char sep) -{ - - return ((u8) (sep == '.')); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_type - * - * PARAMETERS: Node - Parent Node to be examined - * - * RETURN: Type field from Node whose handle is passed - * - * DESCRIPTION: Return the type of a Namespace node - * - ******************************************************************************/ - -acpi_object_type acpi_ns_get_type(struct acpi_namespace_node * node) -{ - ACPI_FUNCTION_TRACE(ns_get_type); - - if (!node) { - ACPI_WARNING((AE_INFO, "Null Node parameter")); - return_UINT32(ACPI_TYPE_ANY); - } - - return_UINT32((acpi_object_type) node->type); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_local - * - * PARAMETERS: Type - A namespace object type - * - * RETURN: LOCAL if names must be found locally in objects of the - * passed type, 0 if enclosing scopes should be searched - * - * DESCRIPTION: Returns scope rule for the given object type. - * - ******************************************************************************/ - -u32 acpi_ns_local(acpi_object_type type) -{ - ACPI_FUNCTION_TRACE(ns_local); - - if (!acpi_ut_valid_object_type(type)) { - - /* Type code out of range */ - - ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type)); - return_UINT32(ACPI_NS_NORMAL); - } - - return_UINT32((u32) acpi_gbl_ns_properties[type] & ACPI_NS_LOCAL); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_internal_name_length - * - * PARAMETERS: Info - Info struct initialized with the - * external name pointer. - * - * RETURN: None - * - * DESCRIPTION: Calculate the length of the internal (AML) namestring - * corresponding to the external (ASL) namestring. - * - ******************************************************************************/ - -void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info) -{ - const char *next_external_char; - u32 i; - - ACPI_FUNCTION_ENTRY(); - - next_external_char = info->external_name; - info->num_carats = 0; - info->num_segments = 0; - info->fully_qualified = FALSE; - - /* - * For the internal name, the required length is 4 bytes per segment, plus - * 1 each for root_prefix, multi_name_prefix_op, segment count, trailing null - * (which is not really needed, but no there's harm in putting it there) - * - * strlen() + 1 covers the first name_seg, which has no path separator - */ - if (acpi_ns_valid_root_prefix(*next_external_char)) { - info->fully_qualified = TRUE; - next_external_char++; - - /* Skip redundant root_prefix, like \\_SB.PCI0.SBRG.EC0 */ - - while (acpi_ns_valid_root_prefix(*next_external_char)) { - next_external_char++; - } - } else { - /* - * Handle Carat prefixes - */ - while (*next_external_char == '^') { - info->num_carats++; - next_external_char++; - } - } - - /* - * Determine the number of ACPI name "segments" by counting the number of - * path separators within the string. Start with one segment since the - * segment count is [(# separators) + 1], and zero separators is ok. - */ - if (*next_external_char) { - info->num_segments = 1; - for (i = 0; next_external_char[i]; i++) { - if (acpi_ns_valid_path_separator(next_external_char[i])) { - info->num_segments++; - } - } - } - - info->length = (ACPI_NAME_SIZE * info->num_segments) + - 4 + info->num_carats; - - info->next_external_char = next_external_char; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_build_internal_name - * - * PARAMETERS: Info - Info struct fully initialized - * - * RETURN: Status - * - * DESCRIPTION: Construct the internal (AML) namestring - * corresponding to the external (ASL) namestring. - * - ******************************************************************************/ - -acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info) -{ - u32 num_segments = info->num_segments; - char *internal_name = info->internal_name; - const char *external_name = info->next_external_char; - char *result = NULL; - u32 i; - - ACPI_FUNCTION_TRACE(ns_build_internal_name); - - /* Setup the correct prefixes, counts, and pointers */ - - if (info->fully_qualified) { - internal_name[0] = '\\'; - - if (num_segments <= 1) { - result = &internal_name[1]; - } else if (num_segments == 2) { - internal_name[1] = AML_DUAL_NAME_PREFIX; - result = &internal_name[2]; - } else { - internal_name[1] = AML_MULTI_NAME_PREFIX_OP; - internal_name[2] = (char)num_segments; - result = &internal_name[3]; - } - } else { - /* - * Not fully qualified. - * Handle Carats first, then append the name segments - */ - i = 0; - if (info->num_carats) { - for (i = 0; i < info->num_carats; i++) { - internal_name[i] = '^'; - } - } - - if (num_segments <= 1) { - result = &internal_name[i]; - } else if (num_segments == 2) { - internal_name[i] = AML_DUAL_NAME_PREFIX; - result = &internal_name[(acpi_size) i + 1]; - } else { - internal_name[i] = AML_MULTI_NAME_PREFIX_OP; - internal_name[(acpi_size) i + 1] = (char)num_segments; - result = &internal_name[(acpi_size) i + 2]; - } - } - - /* Build the name (minus path separators) */ - - for (; num_segments; num_segments--) { - for (i = 0; i < ACPI_NAME_SIZE; i++) { - if (acpi_ns_valid_path_separator(*external_name) || - (*external_name == 0)) { - - /* Pad the segment with underscore(s) if segment is short */ - - result[i] = '_'; - } else { - /* Convert the character to uppercase and save it */ - - result[i] = - (char)ACPI_TOUPPER((int)*external_name); - external_name++; - } - } - - /* Now we must have a path separator, or the pathname is bad */ - - if (!acpi_ns_valid_path_separator(*external_name) && - (*external_name != 0)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Move on the next segment */ - - external_name++; - result += ACPI_NAME_SIZE; - } - - /* Terminate the string */ - - *result = 0; - - if (info->fully_qualified) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Returning [%p] (abs) \"\\%s\"\n", - internal_name, internal_name)); - } else { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Returning [%p] (rel) \"%s\"\n", - internal_name, internal_name)); - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_internalize_name - * - * PARAMETERS: *external_name - External representation of name - * **Converted Name - Where to return the resulting - * internal represention of the name - * - * RETURN: Status - * - * DESCRIPTION: Convert an external representation (e.g. "\_PR_.CPU0") - * to internal form (e.g. 5c 2f 02 5f 50 52 5f 43 50 55 30) - * - *******************************************************************************/ - -acpi_status -acpi_ns_internalize_name(const char *external_name, char **converted_name) -{ - char *internal_name; - struct acpi_namestring_info info; - acpi_status status; - - ACPI_FUNCTION_TRACE(ns_internalize_name); - - if ((!external_name) || (*external_name == 0) || (!converted_name)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Get the length of the new internal name */ - - info.external_name = external_name; - acpi_ns_get_internal_name_length(&info); - - /* We need a segment to store the internal name */ - - internal_name = ACPI_ALLOCATE_ZEROED(info.length); - if (!internal_name) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Build the name */ - - info.internal_name = internal_name; - status = acpi_ns_build_internal_name(&info); - if (ACPI_FAILURE(status)) { - ACPI_FREE(internal_name); - return_ACPI_STATUS(status); - } - - *converted_name = internal_name; - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_externalize_name - * - * PARAMETERS: internal_name_length - Lenth of the internal name below - * internal_name - Internal representation of name - * converted_name_length - Where the length is returned - * converted_name - Where the resulting external name - * is returned - * - * RETURN: Status - * - * DESCRIPTION: Convert internal name (e.g. 5c 2f 02 5f 50 52 5f 43 50 55 30) - * to its external (printable) form (e.g. "\_PR_.CPU0") - * - ******************************************************************************/ - -acpi_status -acpi_ns_externalize_name(u32 internal_name_length, - const char *internal_name, - u32 * converted_name_length, char **converted_name) -{ - u32 names_index = 0; - u32 num_segments = 0; - u32 required_length; - u32 prefix_length = 0; - u32 i = 0; - u32 j = 0; - - ACPI_FUNCTION_TRACE(ns_externalize_name); - - if (!internal_name_length || !internal_name || !converted_name) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * Check for a prefix (one '\' | one or more '^'). - */ - switch (internal_name[0]) { - case '\\': - prefix_length = 1; - break; - - case '^': - for (i = 0; i < internal_name_length; i++) { - if (internal_name[i] == '^') { - prefix_length = i + 1; - } else { - break; - } - } - - if (i == internal_name_length) { - prefix_length = i; - } - - break; - - default: - break; - } - - /* - * Check for object names. Note that there could be 0-255 of these - * 4-byte elements. - */ - if (prefix_length < internal_name_length) { - switch (internal_name[prefix_length]) { - case AML_MULTI_NAME_PREFIX_OP: - - /* <count> 4-byte names */ - - names_index = prefix_length + 2; - num_segments = (u8) - internal_name[(acpi_size) prefix_length + 1]; - break; - - case AML_DUAL_NAME_PREFIX: - - /* Two 4-byte names */ - - names_index = prefix_length + 1; - num_segments = 2; - break; - - case 0: - - /* null_name */ - - names_index = 0; - num_segments = 0; - break; - - default: - - /* one 4-byte name */ - - names_index = prefix_length; - num_segments = 1; - break; - } - } - - /* - * Calculate the length of converted_name, which equals the length - * of the prefix, length of all object names, length of any required - * punctuation ('.') between object names, plus the NULL terminator. - */ - required_length = prefix_length + (4 * num_segments) + - ((num_segments > 0) ? (num_segments - 1) : 0) + 1; - - /* - * Check to see if we're still in bounds. If not, there's a problem - * with internal_name (invalid format). - */ - if (required_length > internal_name_length) { - ACPI_ERROR((AE_INFO, "Invalid internal name")); - return_ACPI_STATUS(AE_BAD_PATHNAME); - } - - /* - * Build converted_name - */ - *converted_name = ACPI_ALLOCATE_ZEROED(required_length); - if (!(*converted_name)) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - j = 0; - - for (i = 0; i < prefix_length; i++) { - (*converted_name)[j++] = internal_name[i]; - } - - if (num_segments > 0) { - for (i = 0; i < num_segments; i++) { - if (i > 0) { - (*converted_name)[j++] = '.'; - } - - (*converted_name)[j++] = internal_name[names_index++]; - (*converted_name)[j++] = internal_name[names_index++]; - (*converted_name)[j++] = internal_name[names_index++]; - (*converted_name)[j++] = internal_name[names_index++]; - } - } - - if (converted_name_length) { - *converted_name_length = (u32) required_length; - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_map_handle_to_node - * - * PARAMETERS: Handle - Handle to be converted to an Node - * - * RETURN: A Name table entry pointer - * - * DESCRIPTION: Convert a namespace handle to a real Node - * - * Note: Real integer handles would allow for more verification - * and keep all pointers within this subsystem - however this introduces - * more (and perhaps unnecessary) overhead. - * - ******************************************************************************/ - -struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle) -{ - - ACPI_FUNCTION_ENTRY(); - - /* - * Simple implementation - */ - if ((!handle) || (handle == ACPI_ROOT_OBJECT)) { - return (acpi_gbl_root_node); - } - - /* We can at least attempt to verify the handle */ - - if (ACPI_GET_DESCRIPTOR_TYPE(handle) != ACPI_DESC_TYPE_NAMED) { - return (NULL); - } - - return (ACPI_CAST_PTR(struct acpi_namespace_node, handle)); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_convert_entry_to_handle - * - * PARAMETERS: Node - Node to be converted to a Handle - * - * RETURN: A user handle - * - * DESCRIPTION: Convert a real Node to a namespace handle - * - ******************************************************************************/ - -acpi_handle acpi_ns_convert_entry_to_handle(struct acpi_namespace_node *node) -{ - - /* - * Simple implementation for now; - */ - return ((acpi_handle) node); - -/* Example future implementation --------------------- - - if (!Node) - { - return (NULL); - } - - if (Node == acpi_gbl_root_node) - { - return (ACPI_ROOT_OBJECT); - } - - return ((acpi_handle) Node); -------------------------------------------------------*/ -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_terminate - * - * PARAMETERS: none - * - * RETURN: none - * - * DESCRIPTION: free memory allocated for namespace and ACPI table storage. - * - ******************************************************************************/ - -void acpi_ns_terminate(void) -{ - union acpi_operand_object *obj_desc; - - ACPI_FUNCTION_TRACE(ns_terminate); - - /* - * 1) Free the entire namespace -- all nodes and objects - * - * Delete all object descriptors attached to namepsace nodes - */ - acpi_ns_delete_namespace_subtree(acpi_gbl_root_node); - - /* Detach any objects attached to the root */ - - obj_desc = acpi_ns_get_attached_object(acpi_gbl_root_node); - if (obj_desc) { - acpi_ns_detach_object(acpi_gbl_root_node); - } - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace freed\n")); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_opens_scope - * - * PARAMETERS: Type - A valid namespace type - * - * RETURN: NEWSCOPE if the passed type "opens a name scope" according - * to the ACPI specification, else 0 - * - ******************************************************************************/ - -u32 acpi_ns_opens_scope(acpi_object_type type) -{ - ACPI_FUNCTION_TRACE_STR(ns_opens_scope, acpi_ut_get_type_name(type)); - - if (!acpi_ut_valid_object_type(type)) { - - /* type code out of range */ - - ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type)); - return_UINT32(ACPI_NS_NORMAL); - } - - return_UINT32(((u32) acpi_gbl_ns_properties[type]) & ACPI_NS_NEWSCOPE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_node - * - * PARAMETERS: *Pathname - Name to be found, in external (ASL) format. The - * \ (backslash) and ^ (carat) prefixes, and the - * . (period) to separate segments are supported. - * prefix_node - Root of subtree to be searched, or NS_ALL for the - * root of the name space. If Name is fully - * qualified (first s8 is '\'), the passed value - * of Scope will not be accessed. - * Flags - Used to indicate whether to perform upsearch or - * not. - * return_node - Where the Node is returned - * - * DESCRIPTION: Look up a name relative to a given scope and return the - * corresponding Node. NOTE: Scope can be null. - * - * MUTEX: Locks namespace - * - ******************************************************************************/ - -acpi_status -acpi_ns_get_node(struct acpi_namespace_node *prefix_node, - const char *pathname, - u32 flags, struct acpi_namespace_node **return_node) -{ - union acpi_generic_state scope_info; - acpi_status status; - char *internal_path; - - ACPI_FUNCTION_TRACE_PTR(ns_get_node, pathname); - - if (!pathname) { - *return_node = prefix_node; - if (!prefix_node) { - *return_node = acpi_gbl_root_node; - } - return_ACPI_STATUS(AE_OK); - } - - /* Convert path to internal representation */ - - status = acpi_ns_internalize_name(pathname, &internal_path); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Must lock namespace during lookup */ - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* Setup lookup scope (search starting point) */ - - scope_info.scope.node = prefix_node; - - /* Lookup the name in the namespace */ - - status = acpi_ns_lookup(&scope_info, internal_path, ACPI_TYPE_ANY, - ACPI_IMODE_EXECUTE, - (flags | ACPI_NS_DONT_OPEN_SCOPE), NULL, - return_node); - if (ACPI_FAILURE(status)) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s, %s\n", - pathname, acpi_format_exception(status))); - } - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - - cleanup: - ACPI_FREE(internal_path); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_parent_node - * - * PARAMETERS: Node - Current table entry - * - * RETURN: Parent entry of the given entry - * - * DESCRIPTION: Obtain the parent entry for a given entry in the namespace. - * - ******************************************************************************/ - -struct acpi_namespace_node *acpi_ns_get_parent_node(struct acpi_namespace_node - *node) -{ - ACPI_FUNCTION_ENTRY(); - - if (!node) { - return (NULL); - } - - /* - * Walk to the end of this peer list. The last entry is marked with a flag - * and the peer pointer is really a pointer back to the parent. This saves - * putting a parent back pointer in each and every named object! - */ - while (!(node->flags & ANOBJ_END_OF_PEER_LIST)) { - node = node->peer; - } - - return (node->peer); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_next_valid_node - * - * PARAMETERS: Node - Current table entry - * - * RETURN: Next valid Node in the linked node list. NULL if no more valid - * nodes. - * - * DESCRIPTION: Find the next valid node within a name table. - * Useful for implementing NULL-end-of-list loops. - * - ******************************************************************************/ - -struct acpi_namespace_node *acpi_ns_get_next_valid_node(struct - acpi_namespace_node - *node) -{ - - /* If we are at the end of this peer list, return NULL */ - - if (node->flags & ANOBJ_END_OF_PEER_LIST) { - return NULL; - } - - /* Otherwise just return the next peer */ - - return (node->peer); -} - -#ifdef ACPI_OBSOLETE_FUNCTIONS -/******************************************************************************* - * - * FUNCTION: acpi_ns_find_parent_name - * - * PARAMETERS: *child_node - Named Obj whose name is to be found - * - * RETURN: The ACPI name - * - * DESCRIPTION: Search for the given obj in its parent scope and return the - * name segment, or "????" if the parent name can't be found - * (which "should not happen"). - * - ******************************************************************************/ - -acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node * child_node) -{ - struct acpi_namespace_node *parent_node; - - ACPI_FUNCTION_TRACE(ns_find_parent_name); - - if (child_node) { - - /* Valid entry. Get the parent Node */ - - parent_node = acpi_ns_get_parent_node(child_node); - if (parent_node) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Parent of %p [%4.4s] is %p [%4.4s]\n", - child_node, - acpi_ut_get_node_name(child_node), - parent_node, - acpi_ut_get_node_name(parent_node))); - - if (parent_node->name.integer) { - return_VALUE((acpi_name) parent_node->name. - integer); - } - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Unable to find parent of %p (%4.4s)\n", - child_node, - acpi_ut_get_node_name(child_node))); - } - - return_VALUE(ACPI_UNKNOWN_NAME); -} -#endif diff --git a/drivers/acpi/namespace/nswalk.c b/drivers/acpi/namespace/nswalk.c deleted file mode 100644 index 71b83e9807d..00000000000 --- 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); -} diff --git a/drivers/acpi/namespace/nsxfeval.c b/drivers/acpi/namespace/nsxfeval.c deleted file mode 100644 index 598393a04e5..00000000000 --- a/drivers/acpi/namespace/nsxfeval.c +++ /dev/null @@ -1,812 +0,0 @@ -/******************************************************************************* - * - * Module Name: nsxfeval - Public interfaces to the ACPI subsystem - * ACPI Object evaluation 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> -#include <acpi/acinterp.h> - -#define _COMPONENT ACPI_NAMESPACE -ACPI_MODULE_NAME("nsxfeval") - -/* Local prototypes */ -static void acpi_ns_resolve_references(struct acpi_evaluate_info *info); - -#ifdef ACPI_FUTURE_USAGE -/******************************************************************************* - * - * FUNCTION: acpi_evaluate_object_typed - * - * PARAMETERS: Handle - Object handle (optional) - * Pathname - Object pathname (optional) - * external_params - List of parameters to pass to method, - * terminated by NULL. May be NULL - * if no parameters are being passed. - * return_buffer - Where to put method's return value (if - * any). If NULL, no value is returned. - * return_type - Expected type of return object - * - * RETURN: Status - * - * DESCRIPTION: Find and evaluate the given object, passing the given - * parameters if necessary. One of "Handle" or "Pathname" must - * be valid (non-null) - * - ******************************************************************************/ - -acpi_status -acpi_evaluate_object_typed(acpi_handle handle, - acpi_string pathname, - struct acpi_object_list *external_params, - struct acpi_buffer *return_buffer, - acpi_object_type return_type) -{ - acpi_status status; - u8 must_free = FALSE; - - ACPI_FUNCTION_TRACE(acpi_evaluate_object_typed); - - /* Return buffer must be valid */ - - if (!return_buffer) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (return_buffer->length == ACPI_ALLOCATE_BUFFER) { - must_free = TRUE; - } - - /* Evaluate the object */ - - status = - acpi_evaluate_object(handle, pathname, external_params, - return_buffer); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Type ANY means "don't care" */ - - if (return_type == ACPI_TYPE_ANY) { - return_ACPI_STATUS(AE_OK); - } - - if (return_buffer->length == 0) { - - /* Error because caller specifically asked for a return value */ - - ACPI_ERROR((AE_INFO, "No return value")); - return_ACPI_STATUS(AE_NULL_OBJECT); - } - - /* Examine the object type returned from evaluate_object */ - - if (((union acpi_object *)return_buffer->pointer)->type == return_type) { - return_ACPI_STATUS(AE_OK); - } - - /* Return object type does not match requested type */ - - ACPI_ERROR((AE_INFO, - "Incorrect return type [%s] requested [%s]", - acpi_ut_get_type_name(((union acpi_object *)return_buffer-> - pointer)->type), - acpi_ut_get_type_name(return_type))); - - if (must_free) { - - /* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */ - - ACPI_FREE(return_buffer->pointer); - return_buffer->pointer = NULL; - } - - return_buffer->length = 0; - return_ACPI_STATUS(AE_TYPE); -} - -ACPI_EXPORT_SYMBOL(acpi_evaluate_object_typed) -#endif /* ACPI_FUTURE_USAGE */ -/******************************************************************************* - * - * FUNCTION: acpi_evaluate_object - * - * PARAMETERS: Handle - Object handle (optional) - * Pathname - Object pathname (optional) - * external_params - List of parameters to pass to method, - * terminated by NULL. May be NULL - * if no parameters are being passed. - * return_buffer - Where to put method's return value (if - * any). If NULL, no value is returned. - * - * RETURN: Status - * - * DESCRIPTION: Find and evaluate the given object, passing the given - * parameters if necessary. One of "Handle" or "Pathname" must - * be valid (non-null) - * - ******************************************************************************/ -acpi_status -acpi_evaluate_object(acpi_handle handle, - acpi_string pathname, - struct acpi_object_list *external_params, - struct acpi_buffer *return_buffer) -{ - acpi_status status; - struct acpi_evaluate_info *info; - acpi_size buffer_space_needed; - u32 i; - - ACPI_FUNCTION_TRACE(acpi_evaluate_object); - - /* Allocate and initialize the evaluation information block */ - - info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); - if (!info) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - info->pathname = pathname; - - /* Convert and validate the device handle */ - - info->prefix_node = acpi_ns_map_handle_to_node(handle); - if (!info->prefix_node) { - status = AE_BAD_PARAMETER; - goto cleanup; - } - - /* - * If there are parameters to be passed to a control method, the external - * objects must all be converted to internal objects - */ - if (external_params && external_params->count) { - /* - * Allocate a new parameter block for the internal objects - * Add 1 to count to allow for null terminated internal list - */ - info->parameters = ACPI_ALLOCATE_ZEROED(((acpi_size) - external_params-> - count + - 1) * sizeof(void *)); - if (!info->parameters) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* Convert each external object in the list to an internal object */ - - for (i = 0; i < external_params->count; i++) { - status = - acpi_ut_copy_eobject_to_iobject(&external_params-> - pointer[i], - &info-> - parameters[i]); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - } - info->parameters[external_params->count] = NULL; - } - - /* - * Three major cases: - * 1) Fully qualified pathname - * 2) No handle, not fully qualified pathname (error) - * 3) Valid handle - */ - if ((pathname) && (acpi_ns_valid_root_prefix(pathname[0]))) { - - /* The path is fully qualified, just evaluate by name */ - - info->prefix_node = NULL; - status = acpi_ns_evaluate(info); - } else if (!handle) { - /* - * A handle is optional iff a fully qualified pathname is specified. - * Since we've already handled fully qualified names above, this is - * an error - */ - if (!pathname) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Both Handle and Pathname are NULL")); - } else { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Null Handle with relative pathname [%s]", - pathname)); - } - - status = AE_BAD_PARAMETER; - } else { - /* We have a namespace a node and a possible relative path */ - - status = acpi_ns_evaluate(info); - } - - /* - * If we are expecting a return value, and all went well above, - * copy the return value to an external object. - */ - if (return_buffer) { - if (!info->return_object) { - return_buffer->length = 0; - } else { - if (ACPI_GET_DESCRIPTOR_TYPE(info->return_object) == - ACPI_DESC_TYPE_NAMED) { - /* - * If we received a NS Node as a return object, this means that - * the object we are evaluating has nothing interesting to - * return (such as a mutex, etc.) We return an error because - * these types are essentially unsupported by this interface. - * We don't check up front because this makes it easier to add - * support for various types at a later date if necessary. - */ - status = AE_TYPE; - info->return_object = NULL; /* No need to delete a NS Node */ - return_buffer->length = 0; - } - - if (ACPI_SUCCESS(status)) { - - /* Dereference Index and ref_of references */ - - acpi_ns_resolve_references(info); - - /* Get the size of the returned object */ - - status = - acpi_ut_get_object_size(info->return_object, - &buffer_space_needed); - if (ACPI_SUCCESS(status)) { - - /* Validate/Allocate/Clear caller buffer */ - - status = - acpi_ut_initialize_buffer - (return_buffer, - buffer_space_needed); - if (ACPI_FAILURE(status)) { - /* - * Caller's buffer is too small or a new one can't - * be allocated - */ - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Needed buffer size %X, %s\n", - (u32) - buffer_space_needed, - acpi_format_exception - (status))); - } else { - /* We have enough space for the object, build it */ - - status = - acpi_ut_copy_iobject_to_eobject - (info->return_object, - return_buffer); - } - } - } - } - } - - if (info->return_object) { - /* - * Delete the internal return object. NOTE: Interpreter must be - * locked to avoid race condition. - */ - acpi_ex_enter_interpreter(); - - /* Remove one reference on the return object (should delete it) */ - - acpi_ut_remove_reference(info->return_object); - acpi_ex_exit_interpreter(); - } - - cleanup: - - /* Free the input parameter list (if we created one) */ - - if (info->parameters) { - - /* Free the allocated parameter block */ - - acpi_ut_delete_internal_object_list(info->parameters); - } - - ACPI_FREE(info); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_evaluate_object) - -/******************************************************************************* - * - * FUNCTION: acpi_ns_resolve_references - * - * PARAMETERS: Info - Evaluation info block - * - * RETURN: Info->return_object is replaced with the dereferenced object - * - * DESCRIPTION: Dereference certain reference objects. Called before an - * internal return object is converted to an external union acpi_object. - * - * Performs an automatic dereference of Index and ref_of reference objects. - * These reference objects are not supported by the union acpi_object, so this is a - * last resort effort to return something useful. Also, provides compatibility - * with other ACPI implementations. - * - * NOTE: does not handle references within returned package objects or nested - * references, but this support could be added later if found to be necessary. - * - ******************************************************************************/ -static void acpi_ns_resolve_references(struct acpi_evaluate_info *info) -{ - union acpi_operand_object *obj_desc = NULL; - struct acpi_namespace_node *node; - - /* We are interested in reference objects only */ - - if (ACPI_GET_OBJECT_TYPE(info->return_object) != - ACPI_TYPE_LOCAL_REFERENCE) { - return; - } - - /* - * Two types of references are supported - those created by Index and - * ref_of operators. A name reference (AML_NAMEPATH_OP) can be converted - * to an union acpi_object, so it is not dereferenced here. A ddb_handle - * (AML_LOAD_OP) cannot be dereferenced, nor can it be converted to - * an union acpi_object. - */ - switch (info->return_object->reference.class) { - case ACPI_REFCLASS_INDEX: - - obj_desc = *(info->return_object->reference.where); - break; - - case ACPI_REFCLASS_REFOF: - - node = info->return_object->reference.object; - if (node) { - obj_desc = node->object; - } - break; - - default: - return; - } - - /* Replace the existing reference object */ - - if (obj_desc) { - acpi_ut_add_reference(obj_desc); - acpi_ut_remove_reference(info->return_object); - info->return_object = obj_desc; - } - - return; -} - -/******************************************************************************* - * - * FUNCTION: acpi_walk_namespace - * - * PARAMETERS: Type - acpi_object_type to search for - * start_object - Handle in namespace where search begins - * max_depth - Depth to which search is to reach - * user_function - Called when an object of "Type" is found - * Context - Passed to user function - * return_value - Location where return value of - * user_function is put if terminated early - * - * RETURNS Return value from the user_function if terminated early. - * Otherwise, returns NULL. - * - * DESCRIPTION: Performs a modified depth-first walk of the namespace tree, - * starting (and ending) at the object specified by start_handle. - * The user_function is called whenever an object 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_walk_namespace(acpi_object_type type, - acpi_handle start_object, - u32 max_depth, - acpi_walk_callback user_function, - void *context, void **return_value) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_walk_namespace); - - /* Parameter validation */ - - if ((type > ACPI_TYPE_LOCAL_MAX) || (!max_depth) || (!user_function)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * Lock the namespace around the walk. - * The namespace will be unlocked/locked around each call - * to the user function - since this function - * must be allowed to make Acpi calls itself. - */ - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_ns_walk_namespace(type, start_object, max_depth, - ACPI_NS_WALK_UNLOCK, - user_function, context, return_value); - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_walk_namespace) - -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_device_callback - * - * PARAMETERS: Callback from acpi_get_device - * - * RETURN: Status - * - * DESCRIPTION: Takes callbacks from walk_namespace and filters out all non- - * present devices, or if they specified a HID, it filters based - * on that. - * - ******************************************************************************/ -static acpi_status -acpi_ns_get_device_callback(acpi_handle obj_handle, - u32 nesting_level, - void *context, void **return_value) -{ - struct acpi_get_devices_info *info = context; - acpi_status status; - struct acpi_namespace_node *node; - u32 flags; - struct acpica_device_id hid; - struct acpi_compatible_id_list *cid; - u32 i; - int found; - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - node = acpi_ns_map_handle_to_node(obj_handle); - status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - if (!node) { - return (AE_BAD_PARAMETER); - } - - /* Run _STA to determine if device is present */ - - status = acpi_ut_execute_STA(node, &flags); - if (ACPI_FAILURE(status)) { - return (AE_CTRL_DEPTH); - } - - if (!(flags & ACPI_STA_DEVICE_PRESENT) && - !(flags & ACPI_STA_DEVICE_FUNCTIONING)) { - /* - * Don't examine the children of the device only when the - * device is neither present nor functional. See ACPI spec, - * description of _STA for more information. - */ - return (AE_CTRL_DEPTH); - } - - /* Filter based on device HID & CID */ - - if (info->hid != NULL) { - status = acpi_ut_execute_HID(node, &hid); - if (status == AE_NOT_FOUND) { - return (AE_OK); - } else if (ACPI_FAILURE(status)) { - return (AE_CTRL_DEPTH); - } - - if (ACPI_STRNCMP(hid.value, info->hid, sizeof(hid.value)) != 0) { - - /* Get the list of Compatible IDs */ - - status = acpi_ut_execute_CID(node, &cid); - if (status == AE_NOT_FOUND) { - return (AE_OK); - } else if (ACPI_FAILURE(status)) { - return (AE_CTRL_DEPTH); - } - - /* Walk the CID list */ - - found = 0; - for (i = 0; i < cid->count; i++) { - if (ACPI_STRNCMP(cid->id[i].value, info->hid, - sizeof(struct - acpi_compatible_id)) == - 0) { - found = 1; - break; - } - } - ACPI_FREE(cid); - if (!found) - return (AE_OK); - } - } - - status = info->user_function(obj_handle, nesting_level, info->context, - return_value); - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_get_devices - * - * PARAMETERS: HID - HID to search for. Can be NULL. - * user_function - Called when a matching object is found - * Context - Passed to user function - * return_value - Location where return value of - * user_function is put if terminated early - * - * RETURNS Return value from the user_function if terminated early. - * Otherwise, returns NULL. - * - * DESCRIPTION: Performs a modified depth-first walk of the namespace tree, - * starting (and ending) at the object specified by start_handle. - * The user_function is called whenever an object of type - * Device is found. If the user function returns - * a non-zero value, the search is terminated immediately and this - * value is returned to the caller. - * - * This is a wrapper for walk_namespace, but the callback performs - * additional filtering. Please see acpi_ns_get_device_callback. - * - ******************************************************************************/ - -acpi_status -acpi_get_devices(const char *HID, - acpi_walk_callback user_function, - void *context, void **return_value) -{ - acpi_status status; - struct acpi_get_devices_info info; - - ACPI_FUNCTION_TRACE(acpi_get_devices); - - /* Parameter validation */ - - if (!user_function) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * We're going to call their callback from OUR callback, so we need - * to know what it is, and their context parameter. - */ - info.hid = HID; - info.context = context; - info.user_function = user_function; - - /* - * Lock the namespace around the walk. - * The namespace will be unlocked/locked around each call - * to the user function - since this function - * must be allowed to make Acpi calls itself. - */ - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, - acpi_ns_get_device_callback, &info, - return_value); - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_devices) - -/******************************************************************************* - * - * FUNCTION: acpi_attach_data - * - * PARAMETERS: obj_handle - Namespace node - * Handler - Handler for this attachment - * Data - Pointer to data to be attached - * - * RETURN: Status - * - * DESCRIPTION: Attach arbitrary data and handler to a namespace node. - * - ******************************************************************************/ -acpi_status -acpi_attach_data(acpi_handle obj_handle, - acpi_object_handler handler, void *data) -{ - struct acpi_namespace_node *node; - acpi_status status; - - /* Parameter validation */ - - if (!obj_handle || !handler || !data) { - return (AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Convert and validate the handle */ - - node = acpi_ns_map_handle_to_node(obj_handle); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - status = acpi_ns_attach_data(node, handler, data); - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_attach_data) - -/******************************************************************************* - * - * FUNCTION: acpi_detach_data - * - * PARAMETERS: obj_handle - Namespace node handle - * Handler - Handler used in call to acpi_attach_data - * - * RETURN: Status - * - * DESCRIPTION: Remove data that was previously attached to a node. - * - ******************************************************************************/ -acpi_status -acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler) -{ - struct acpi_namespace_node *node; - acpi_status status; - - /* Parameter validation */ - - if (!obj_handle || !handler) { - return (AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Convert and validate the handle */ - - node = acpi_ns_map_handle_to_node(obj_handle); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - status = acpi_ns_detach_data(node, handler); - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_detach_data) - -/******************************************************************************* - * - * FUNCTION: acpi_get_data - * - * PARAMETERS: obj_handle - Namespace node - * Handler - Handler used in call to attach_data - * Data - Where the data is returned - * - * RETURN: Status - * - * DESCRIPTION: Retrieve data that was previously attached to a namespace node. - * - ******************************************************************************/ -acpi_status -acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data) -{ - struct acpi_namespace_node *node; - acpi_status status; - - /* Parameter validation */ - - if (!obj_handle || !handler || !data) { - return (AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Convert and validate the handle */ - - node = acpi_ns_map_handle_to_node(obj_handle); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - status = acpi_ns_get_attached_data(node, handler, data); - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_data) diff --git a/drivers/acpi/namespace/nsxfname.c b/drivers/acpi/namespace/nsxfname.c deleted file mode 100644 index 7d5bfa9e9fe..00000000000 --- 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) diff --git a/drivers/acpi/namespace/nsxfobj.c b/drivers/acpi/namespace/nsxfobj.c deleted file mode 100644 index 80e6322d59c..00000000000 --- a/drivers/acpi/namespace/nsxfobj.c +++ /dev/null @@ -1,287 +0,0 @@ -/******************************************************************************* - * - * Module Name: nsxfobj - Public interfaces to the ACPI subsystem - * ACPI Object 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("nsxfobj") - -/******************************************************************************* - * - * FUNCTION: acpi_get_id - * - * PARAMETERS: Handle - Handle of object whose id is desired - * ret_id - Where the id will be placed - * - * RETURN: Status - * - * DESCRIPTION: This routine returns the owner id associated with a handle - * - ******************************************************************************/ -acpi_status acpi_get_id(acpi_handle handle, acpi_owner_id * ret_id) -{ - struct acpi_namespace_node *node; - acpi_status status; - - /* Parameter Validation */ - - if (!ret_id) { - return (AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Convert and validate the handle */ - - node = acpi_ns_map_handle_to_node(handle); - if (!node) { - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (AE_BAD_PARAMETER); - } - - *ret_id = node->owner_id; - - status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_id) - -/******************************************************************************* - * - * FUNCTION: acpi_get_type - * - * PARAMETERS: Handle - Handle of object whose type is desired - * ret_type - Where the type will be placed - * - * RETURN: Status - * - * DESCRIPTION: This routine returns the type associatd with a particular handle - * - ******************************************************************************/ -acpi_status acpi_get_type(acpi_handle handle, acpi_object_type * ret_type) -{ - struct acpi_namespace_node *node; - acpi_status status; - - /* Parameter Validation */ - - if (!ret_type) { - return (AE_BAD_PARAMETER); - } - - /* - * Special case for the predefined Root Node - * (return type ANY) - */ - if (handle == ACPI_ROOT_OBJECT) { - *ret_type = ACPI_TYPE_ANY; - return (AE_OK); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Convert and validate the handle */ - - node = acpi_ns_map_handle_to_node(handle); - if (!node) { - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (AE_BAD_PARAMETER); - } - - *ret_type = node->type; - - status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_type) - -/******************************************************************************* - * - * FUNCTION: acpi_get_parent - * - * PARAMETERS: Handle - Handle of object whose parent is desired - * ret_handle - Where the parent handle will be placed - * - * RETURN: Status - * - * DESCRIPTION: Returns a handle to the parent of the object represented by - * Handle. - * - ******************************************************************************/ -acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle) -{ - struct acpi_namespace_node *node; - acpi_status status; - - if (!ret_handle) { - return (AE_BAD_PARAMETER); - } - - /* Special case for the predefined Root Node (no parent) */ - - if (handle == ACPI_ROOT_OBJECT) { - return (AE_NULL_ENTRY); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* Convert and validate the handle */ - - node = acpi_ns_map_handle_to_node(handle); - if (!node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - - /* Get the parent entry */ - - *ret_handle = - acpi_ns_convert_entry_to_handle(acpi_ns_get_parent_node(node)); - - /* Return exception if parent is null */ - - if (!acpi_ns_get_parent_node(node)) { - status = AE_NULL_ENTRY; - } - - unlock_and_exit: - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_parent) - -/******************************************************************************* - * - * FUNCTION: acpi_get_next_object - * - * PARAMETERS: Type - Type of object to be searched for - * Parent - Parent object whose children we are getting - * last_child - Previous child that was found. - * The NEXT child will be returned - * ret_handle - Where handle to the next object is placed - * - * RETURN: Status - * - * DESCRIPTION: Return the next peer object within the namespace. If Handle is - * valid, Scope is ignored. Otherwise, the first object within - * Scope is returned. - * - ******************************************************************************/ -acpi_status -acpi_get_next_object(acpi_object_type type, - acpi_handle parent, - acpi_handle child, acpi_handle * ret_handle) -{ - acpi_status status; - struct acpi_namespace_node *node; - struct acpi_namespace_node *parent_node = NULL; - struct acpi_namespace_node *child_node = NULL; - - /* Parameter validation */ - - if (type > ACPI_TYPE_EXTERNAL_MAX) { - return (AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return (status); - } - - /* If null handle, use the parent */ - - if (!child) { - - /* Start search at the beginning of the specified scope */ - - parent_node = acpi_ns_map_handle_to_node(parent); - if (!parent_node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - } else { - /* Non-null handle, ignore the parent */ - /* Convert and validate the handle */ - - child_node = acpi_ns_map_handle_to_node(child); - if (!child_node) { - status = AE_BAD_PARAMETER; - goto unlock_and_exit; - } - } - - /* Internal function does the real work */ - - node = acpi_ns_get_next_node(type, parent_node, child_node); - if (!node) { - status = AE_NOT_FOUND; - goto unlock_and_exit; - } - - if (ret_handle) { - *ret_handle = acpi_ns_convert_entry_to_handle(node); - } - - unlock_and_exit: - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return (status); -} - -ACPI_EXPORT_SYMBOL(acpi_get_next_object) |