1/******************************************************************************
2 *
3 * Name: acnamesp.h - Namespace subcomponent prototypes and defines
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2015, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions, and the following disclaimer,
16 *    without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 *    substantially similar to the "NO WARRANTY" disclaimer below
19 *    ("Disclaimer") and any redistribution must be conditioned upon
20 *    including a substantially similar Disclaimer requirement for further
21 *    binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 *    of any contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44#ifndef __ACNAMESP_H__
45#define __ACNAMESP_H__
46
47/* To search the entire name space, pass this as search_base */
48
49#define ACPI_NS_ALL                 ((acpi_handle)0)
50
51/*
52 * Elements of acpi_ns_properties are bit significant
53 * and should be one-to-one with values of acpi_object_type
54 */
55#define ACPI_NS_NORMAL              0
56#define ACPI_NS_NEWSCOPE            1	/* a definition of this type opens a name scope */
57#define ACPI_NS_LOCAL               2	/* suppress search of enclosing scopes */
58
59/* Flags for acpi_ns_lookup, acpi_ns_search_and_enter */
60
61#define ACPI_NS_NO_UPSEARCH         0
62#define ACPI_NS_SEARCH_PARENT       0x01
63#define ACPI_NS_DONT_OPEN_SCOPE     0x02
64#define ACPI_NS_NO_PEER_SEARCH      0x04
65#define ACPI_NS_ERROR_IF_FOUND      0x08
66#define ACPI_NS_PREFIX_IS_SCOPE     0x10
67#define ACPI_NS_EXTERNAL            0x20
68#define ACPI_NS_TEMPORARY           0x40
69#define ACPI_NS_OVERRIDE_IF_FOUND   0x80
70
71/* Flags for acpi_ns_walk_namespace */
72
73#define ACPI_NS_WALK_NO_UNLOCK      0
74#define ACPI_NS_WALK_UNLOCK         0x01
75#define ACPI_NS_WALK_TEMP_NODES     0x02
76
77/* Object is not a package element */
78
79#define ACPI_NOT_PACKAGE_ELEMENT    ACPI_UINT32_MAX
80
81/* Always emit warning message, not dependent on node flags */
82
83#define ACPI_WARN_ALWAYS            0
84
85/*
86 * nsinit - Namespace initialization
87 */
88acpi_status acpi_ns_initialize_objects(void);
89
90acpi_status acpi_ns_initialize_devices(void);
91
92/*
93 * nsload -  Namespace loading
94 */
95acpi_status acpi_ns_load_namespace(void);
96
97acpi_status
98acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node);
99
100/*
101 * nswalk - walk the namespace
102 */
103acpi_status
104acpi_ns_walk_namespace(acpi_object_type type,
105		       acpi_handle start_object,
106		       u32 max_depth,
107		       u32 flags,
108		       acpi_walk_callback descending_callback,
109		       acpi_walk_callback ascending_callback,
110		       void *context, void **return_value);
111
112struct acpi_namespace_node *acpi_ns_get_next_node(struct acpi_namespace_node
113						  *parent,
114						  struct acpi_namespace_node
115						  *child);
116
117struct acpi_namespace_node *acpi_ns_get_next_node_typed(acpi_object_type type,
118							struct
119							acpi_namespace_node
120							*parent,
121							struct
122							acpi_namespace_node
123							*child);
124
125/*
126 * nsparse - table parsing
127 */
128acpi_status
129acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node);
130
131acpi_status
132acpi_ns_one_complete_parse(u32 pass_number,
133			   u32 table_index,
134			   struct acpi_namespace_node *start_node);
135
136/*
137 * nsaccess - Top-level namespace access
138 */
139acpi_status acpi_ns_root_initialize(void);
140
141acpi_status
142acpi_ns_lookup(union acpi_generic_state *scope_info,
143	       char *name,
144	       acpi_object_type type,
145	       acpi_interpreter_mode interpreter_mode,
146	       u32 flags,
147	       struct acpi_walk_state *walk_state,
148	       struct acpi_namespace_node **ret_node);
149
150/*
151 * nsalloc - Named object allocation/deallocation
152 */
153struct acpi_namespace_node *acpi_ns_create_node(u32 name);
154
155void acpi_ns_delete_node(struct acpi_namespace_node *node);
156
157void acpi_ns_remove_node(struct acpi_namespace_node *node);
158
159void
160acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_handle);
161
162void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id);
163
164void acpi_ns_detach_object(struct acpi_namespace_node *node);
165
166void acpi_ns_delete_children(struct acpi_namespace_node *parent);
167
168int acpi_ns_compare_names(char *name1, char *name2);
169
170/*
171 * nsconvert - Dynamic object conversion routines
172 */
173acpi_status
174acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
175			   union acpi_operand_object **return_object);
176
177acpi_status
178acpi_ns_convert_to_string(union acpi_operand_object *original_object,
179			  union acpi_operand_object **return_object);
180
181acpi_status
182acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
183			  union acpi_operand_object **return_object);
184
185acpi_status
186acpi_ns_convert_to_unicode(union acpi_operand_object *original_object,
187			   union acpi_operand_object **return_object);
188
189acpi_status
190acpi_ns_convert_to_resource(union acpi_operand_object *original_object,
191			    union acpi_operand_object **return_object);
192
193/*
194 * nsdump - Namespace dump/print utilities
195 */
196void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth);
197
198void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level);
199
200void
201acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component);
202
203void acpi_ns_print_pathname(u32 num_segments, char *pathname);
204
205acpi_status
206acpi_ns_dump_one_object(acpi_handle obj_handle,
207			u32 level, void *context, void **return_value);
208
209void
210acpi_ns_dump_objects(acpi_object_type type,
211		     u8 display_type,
212		     u32 max_depth,
213		     acpi_owner_id owner_id, acpi_handle start_handle);
214
215void
216acpi_ns_dump_object_paths(acpi_object_type type,
217			  u8 display_type,
218			  u32 max_depth,
219			  acpi_owner_id owner_id, acpi_handle start_handle);
220
221/*
222 * nseval - Namespace evaluation functions
223 */
224acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info);
225
226void acpi_ns_exec_module_code_list(void);
227
228/*
229 * nsarguments - Argument count/type checking for predefined/reserved names
230 */
231void
232acpi_ns_check_argument_count(char *pathname,
233			     struct acpi_namespace_node *node,
234			     u32 user_param_count,
235			     const union acpi_predefined_info *info);
236
237void
238acpi_ns_check_acpi_compliance(char *pathname,
239			      struct acpi_namespace_node *node,
240			      const union acpi_predefined_info *predefined);
241
242void acpi_ns_check_argument_types(struct acpi_evaluate_info *info);
243
244/*
245 * nspredef - Return value checking for predefined/reserved names
246 */
247acpi_status
248acpi_ns_check_return_value(struct acpi_namespace_node *node,
249			   struct acpi_evaluate_info *info,
250			   u32 user_param_count,
251			   acpi_status return_status,
252			   union acpi_operand_object **return_object);
253
254acpi_status
255acpi_ns_check_object_type(struct acpi_evaluate_info *info,
256			  union acpi_operand_object **return_object_ptr,
257			  u32 expected_btypes, u32 package_index);
258
259/*
260 * nsprepkg - Validation of predefined name packages
261 */
262acpi_status
263acpi_ns_check_package(struct acpi_evaluate_info *info,
264		      union acpi_operand_object **return_object_ptr);
265
266/*
267 * nsnames - Name and Scope manipulation
268 */
269u32 acpi_ns_opens_scope(acpi_object_type type);
270
271char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node);
272
273u32
274acpi_ns_build_normalized_path(struct acpi_namespace_node *node,
275			      char *full_path, u32 path_size, u8 no_trailing);
276
277char *acpi_ns_get_normalized_pathname(struct acpi_namespace_node *node,
278				      u8 no_trailing);
279
280char *acpi_ns_name_of_current_scope(struct acpi_walk_state *walk_state);
281
282acpi_status
283acpi_ns_handle_to_pathname(acpi_handle target_handle,
284			   struct acpi_buffer *buffer, u8 no_trailing);
285
286u8
287acpi_ns_pattern_match(struct acpi_namespace_node *obj_node, char *search_for);
288
289acpi_status
290acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
291		 const char *external_pathname,
292		 u32 flags, struct acpi_namespace_node **out_node);
293
294acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node);
295
296/*
297 * nsobject - Object management for namespace nodes
298 */
299acpi_status
300acpi_ns_attach_object(struct acpi_namespace_node *node,
301		      union acpi_operand_object *object, acpi_object_type type);
302
303union acpi_operand_object *acpi_ns_get_attached_object(struct
304						       acpi_namespace_node
305						       *node);
306
307union acpi_operand_object *acpi_ns_get_secondary_object(union
308							acpi_operand_object
309							*obj_desc);
310
311acpi_status
312acpi_ns_attach_data(struct acpi_namespace_node *node,
313		    acpi_object_handler handler, void *data);
314
315acpi_status
316acpi_ns_detach_data(struct acpi_namespace_node *node,
317		    acpi_object_handler handler);
318
319acpi_status
320acpi_ns_get_attached_data(struct acpi_namespace_node *node,
321			  acpi_object_handler handler, void **data);
322
323/*
324 * nsrepair - General return object repair for all
325 * predefined methods/objects
326 */
327acpi_status
328acpi_ns_simple_repair(struct acpi_evaluate_info *info,
329		      u32 expected_btypes,
330		      u32 package_index,
331		      union acpi_operand_object **return_object_ptr);
332
333acpi_status
334acpi_ns_wrap_with_package(struct acpi_evaluate_info *info,
335			  union acpi_operand_object *original_object,
336			  union acpi_operand_object **obj_desc_ptr);
337
338acpi_status
339acpi_ns_repair_null_element(struct acpi_evaluate_info *info,
340			    u32 expected_btypes,
341			    u32 package_index,
342			    union acpi_operand_object **return_object_ptr);
343
344void
345acpi_ns_remove_null_elements(struct acpi_evaluate_info *info,
346			     u8 package_type,
347			     union acpi_operand_object *obj_desc);
348
349/*
350 * nsrepair2 - Return object repair for specific
351 * predefined methods/objects
352 */
353acpi_status
354acpi_ns_complex_repairs(struct acpi_evaluate_info *info,
355			struct acpi_namespace_node *node,
356			acpi_status validate_status,
357			union acpi_operand_object **return_object_ptr);
358
359/*
360 * nssearch - Namespace searching and entry
361 */
362acpi_status
363acpi_ns_search_and_enter(u32 entry_name,
364			 struct acpi_walk_state *walk_state,
365			 struct acpi_namespace_node *node,
366			 acpi_interpreter_mode interpreter_mode,
367			 acpi_object_type type,
368			 u32 flags, struct acpi_namespace_node **ret_node);
369
370acpi_status
371acpi_ns_search_one_scope(u32 entry_name,
372			 struct acpi_namespace_node *node,
373			 acpi_object_type type,
374			 struct acpi_namespace_node **ret_node);
375
376void
377acpi_ns_install_node(struct acpi_walk_state *walk_state,
378		     struct acpi_namespace_node *parent_node,
379		     struct acpi_namespace_node *node, acpi_object_type type);
380
381/*
382 * nsutils - Utility functions
383 */
384acpi_object_type acpi_ns_get_type(struct acpi_namespace_node *node);
385
386u32 acpi_ns_local(acpi_object_type type);
387
388void
389acpi_ns_print_node_pathname(struct acpi_namespace_node *node, const char *msg);
390
391acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info);
392
393void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info);
394
395acpi_status
396acpi_ns_internalize_name(const char *dotted_name, char **converted_name);
397
398acpi_status
399acpi_ns_externalize_name(u32 internal_name_length,
400			 const char *internal_name,
401			 u32 * converted_name_length, char **converted_name);
402
403struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle);
404
405void acpi_ns_terminate(void);
406
407#endif				/* __ACNAMESP_H__ */
408