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Validates predefined ACPI objects that appear in the namespace, at the time they are evaluated. The argument count and the type of the returned object are validated. The purpose of this validation is to detect problems with the BIOS-exposed predefined ACPI objects before the results are returned to the ACPI-related drivers. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
322 lines
9.7 KiB
C
322 lines
9.7 KiB
C
/******************************************************************************
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*
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* Name: acnamesp.h - Namespace subcomponent prototypes and defines
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2008, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#ifndef __ACNAMESP_H__
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#define __ACNAMESP_H__
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/* To search the entire name space, pass this as search_base */
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#define ACPI_NS_ALL ((acpi_handle)0)
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/*
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* Elements of acpi_ns_properties are bit significant
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* and should be one-to-one with values of acpi_object_type
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*/
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#define ACPI_NS_NORMAL 0
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#define ACPI_NS_NEWSCOPE 1 /* a definition of this type opens a name scope */
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#define ACPI_NS_LOCAL 2 /* suppress search of enclosing scopes */
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/* Flags for acpi_ns_lookup, acpi_ns_search_and_enter */
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#define ACPI_NS_NO_UPSEARCH 0
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#define ACPI_NS_SEARCH_PARENT 0x01
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#define ACPI_NS_DONT_OPEN_SCOPE 0x02
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#define ACPI_NS_NO_PEER_SEARCH 0x04
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#define ACPI_NS_ERROR_IF_FOUND 0x08
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#define ACPI_NS_PREFIX_IS_SCOPE 0x10
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#define ACPI_NS_EXTERNAL 0x20
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#define ACPI_NS_TEMPORARY 0x40
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/* Flags for acpi_ns_walk_namespace */
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#define ACPI_NS_WALK_NO_UNLOCK 0
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#define ACPI_NS_WALK_UNLOCK 0x01
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#define ACPI_NS_WALK_TEMP_NODES 0x02
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/*
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* nsinit - Namespace initialization
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*/
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acpi_status acpi_ns_initialize_objects(void);
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acpi_status acpi_ns_initialize_devices(void);
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/*
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* nsload - Namespace loading
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*/
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acpi_status acpi_ns_load_namespace(void);
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acpi_status
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acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node);
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/*
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* nswalk - walk the namespace
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*/
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acpi_status
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acpi_ns_walk_namespace(acpi_object_type type,
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acpi_handle start_object,
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u32 max_depth,
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u32 flags,
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acpi_walk_callback user_function,
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void *context, void **return_value);
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struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type, struct acpi_namespace_node
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*parent, struct acpi_namespace_node
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*child);
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/*
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* nsparse - table parsing
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*/
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acpi_status
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acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node);
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acpi_status
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acpi_ns_one_complete_parse(u32 pass_number,
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u32 table_index,
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struct acpi_namespace_node *start_node);
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/*
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* nsaccess - Top-level namespace access
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*/
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acpi_status acpi_ns_root_initialize(void);
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acpi_status
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acpi_ns_lookup(union acpi_generic_state *scope_info,
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char *name,
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acpi_object_type type,
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acpi_interpreter_mode interpreter_mode,
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u32 flags,
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struct acpi_walk_state *walk_state,
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struct acpi_namespace_node **ret_node);
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/*
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* nsalloc - Named object allocation/deallocation
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*/
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struct acpi_namespace_node *acpi_ns_create_node(u32 name);
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void acpi_ns_delete_node(struct acpi_namespace_node *node);
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void
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acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_handle);
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void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id);
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void acpi_ns_detach_object(struct acpi_namespace_node *node);
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void acpi_ns_delete_children(struct acpi_namespace_node *parent);
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int acpi_ns_compare_names(char *name1, char *name2);
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/*
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* nsdump - Namespace dump/print utilities
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*/
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#ifdef ACPI_FUTURE_USAGE
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void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth);
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#endif /* ACPI_FUTURE_USAGE */
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void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level);
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void
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acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component);
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void acpi_ns_print_pathname(u32 num_segments, char *pathname);
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acpi_status
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acpi_ns_dump_one_object(acpi_handle obj_handle,
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u32 level, void *context, void **return_value);
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#ifdef ACPI_FUTURE_USAGE
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void
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acpi_ns_dump_objects(acpi_object_type type,
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u8 display_type,
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u32 max_depth,
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acpi_owner_id owner_id, acpi_handle start_handle);
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#endif /* ACPI_FUTURE_USAGE */
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/*
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* nseval - Namespace evaluation functions
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*/
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acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info);
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/*
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* nspredef - Support for predefined/reserved names
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*/
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acpi_status
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acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
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union acpi_operand_object *return_object);
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const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct
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acpi_namespace_node
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*node);
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void
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acpi_ns_check_parameter_count(char *pathname,
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struct acpi_namespace_node *node,
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const union acpi_predefined_info *info);
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/*
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* nsnames - Name and Scope manipulation
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*/
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u32 acpi_ns_opens_scope(acpi_object_type type);
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acpi_status
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acpi_ns_build_external_path(struct acpi_namespace_node *node,
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acpi_size size, char *name_buffer);
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char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node);
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char *acpi_ns_name_of_current_scope(struct acpi_walk_state *walk_state);
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acpi_status
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acpi_ns_handle_to_pathname(acpi_handle target_handle,
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struct acpi_buffer *buffer);
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u8
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acpi_ns_pattern_match(struct acpi_namespace_node *obj_node, char *search_for);
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acpi_status
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acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
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const char *external_pathname,
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u32 flags, struct acpi_namespace_node **out_node);
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acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node);
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/*
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* nsobject - Object management for namespace nodes
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*/
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acpi_status
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acpi_ns_attach_object(struct acpi_namespace_node *node,
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union acpi_operand_object *object, acpi_object_type type);
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union acpi_operand_object *acpi_ns_get_attached_object(struct
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acpi_namespace_node
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*node);
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union acpi_operand_object *acpi_ns_get_secondary_object(union
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acpi_operand_object
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*obj_desc);
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acpi_status
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acpi_ns_attach_data(struct acpi_namespace_node *node,
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acpi_object_handler handler, void *data);
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acpi_status
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acpi_ns_detach_data(struct acpi_namespace_node *node,
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acpi_object_handler handler);
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acpi_status
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acpi_ns_get_attached_data(struct acpi_namespace_node *node,
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acpi_object_handler handler, void **data);
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/*
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* nssearch - Namespace searching and entry
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*/
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acpi_status
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acpi_ns_search_and_enter(u32 entry_name,
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struct acpi_walk_state *walk_state,
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struct acpi_namespace_node *node,
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acpi_interpreter_mode interpreter_mode,
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acpi_object_type type,
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u32 flags, struct acpi_namespace_node **ret_node);
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acpi_status
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acpi_ns_search_one_scope(u32 entry_name,
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struct acpi_namespace_node *node,
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acpi_object_type type,
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struct acpi_namespace_node **ret_node);
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void
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acpi_ns_install_node(struct acpi_walk_state *walk_state,
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struct acpi_namespace_node *parent_node,
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struct acpi_namespace_node *node, acpi_object_type type);
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/*
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* nsutils - Utility functions
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*/
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u8 acpi_ns_valid_root_prefix(char prefix);
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acpi_object_type acpi_ns_get_type(struct acpi_namespace_node *node);
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u32 acpi_ns_local(acpi_object_type type);
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void
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acpi_ns_report_error(const char *module_name,
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u32 line_number,
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const char *internal_name, acpi_status lookup_status);
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void
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acpi_ns_report_method_error(const char *module_name,
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u32 line_number,
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const char *message,
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struct acpi_namespace_node *node,
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const char *path, acpi_status lookup_status);
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void
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acpi_ns_print_node_pathname(struct acpi_namespace_node *node, const char *msg);
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acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info);
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void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info);
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acpi_status
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acpi_ns_internalize_name(const char *dotted_name, char **converted_name);
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acpi_status
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acpi_ns_externalize_name(u32 internal_name_length,
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const char *internal_name,
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u32 * converted_name_length, char **converted_name);
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struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle);
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acpi_handle acpi_ns_convert_entry_to_handle(struct acpi_namespace_node *node);
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void acpi_ns_terminate(void);
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struct acpi_namespace_node *acpi_ns_get_parent_node(struct acpi_namespace_node
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*node);
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struct acpi_namespace_node *acpi_ns_get_next_valid_node(struct
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acpi_namespace_node
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*node);
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#endif /* __ACNAMESP_H__ */
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