drivers/acpi/acpica/acnamesp.h

   1 /******************************************************************************
   2  *
   3  * Name: acnamesp.h - Namespace subcomponent prototypes and defines
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2016, 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 #define ACPI_ALL_PACKAGE_ELEMENTS   (ACPI_UINT32_MAX-1)
  81
  82 /* Always emit warning message, not dependent on node flags */
  83
  84 #define ACPI_WARN_ALWAYS            0
  85
  86 /*
  87  * nsinit - Namespace initialization
  88  */
  89 acpi_status acpi_ns_initialize_objects(void);
  90
  91 acpi_status acpi_ns_initialize_devices(u32 flags);
  92
  93 /*
  94  * nsload -  Namespace loading
  95  */
  96 acpi_status acpi_ns_load_namespace(void);
  97
  98 acpi_status
  99 acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node);
 100
 101 /*
 102  * nswalk - walk the namespace
 103  */
 104 acpi_status
 105 acpi_ns_walk_namespace(acpi_object_type type,
 106                        acpi_handle start_object,
 107                        u32 max_depth,
 108                        u32 flags,
 109                        acpi_walk_callback descending_callback,
 110                        acpi_walk_callback ascending_callback,
 111                        void *context, void **return_value);
 112
 113 struct acpi_namespace_node *acpi_ns_get_next_node(struct acpi_namespace_node
 114                                                   *parent,
 115                                                   struct acpi_namespace_node
 116                                                   *child);
 117
 118 struct acpi_namespace_node *acpi_ns_get_next_node_typed(acpi_object_type type,
 119                                                         struct
 120                                                         acpi_namespace_node
 121                                                         *parent,
 122                                                         struct
 123                                                         acpi_namespace_node
 124                                                         *child);
 125
 126 /*
 127  * nsparse - table parsing
 128  */
 129 acpi_status
 130 acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node);
 131
 132 acpi_status
 133 acpi_ns_one_complete_parse(u32 pass_number,
 134                            u32 table_index,
 135                            struct acpi_namespace_node *start_node);
 136
 137 /*
 138  * nsaccess - Top-level namespace access
 139  */
 140 acpi_status acpi_ns_root_initialize(void);
 141
 142 acpi_status
 143 acpi_ns_lookup(union acpi_generic_state *scope_info,
 144                char *name,
 145                acpi_object_type type,
 146                acpi_interpreter_mode interpreter_mode,
 147                u32 flags,
 148                struct acpi_walk_state *walk_state,
 149                struct acpi_namespace_node **ret_node);
 150
 151 /*
 152  * nsalloc - Named object allocation/deallocation
 153  */
 154 struct acpi_namespace_node *acpi_ns_create_node(u32 name);
 155
 156 void acpi_ns_delete_node(struct acpi_namespace_node *node);
 157
 158 void acpi_ns_remove_node(struct acpi_namespace_node *node);
 159
 160 void
 161 acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_handle);
 162
 163 void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id);
 164
 165 void acpi_ns_detach_object(struct acpi_namespace_node *node);
 166
 167 void acpi_ns_delete_children(struct acpi_namespace_node *parent);
 168
 169 int acpi_ns_compare_names(char *name1, char *name2);
 170
 171 /*
 172  * nsconvert - Dynamic object conversion routines
 173  */
 174 acpi_status
 175 acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
 176                            union acpi_operand_object **return_object);
 177
 178 acpi_status
 179 acpi_ns_convert_to_string(union acpi_operand_object *original_object,
 180                           union acpi_operand_object **return_object);
 181
 182 acpi_status
 183 acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
 184                           union acpi_operand_object **return_object);
 185
 186 acpi_status
 187 acpi_ns_convert_to_unicode(struct acpi_namespace_node *scope,
 188                            union acpi_operand_object *original_object,
 189                            union acpi_operand_object **return_object);
 190
 191 acpi_status
 192 acpi_ns_convert_to_resource(struct acpi_namespace_node *scope,
 193                             union acpi_operand_object *original_object,
 194                             union acpi_operand_object **return_object);
 195
 196 acpi_status
 197 acpi_ns_convert_to_reference(struct acpi_namespace_node *scope,
 198                              union acpi_operand_object *original_object,
 199                              union acpi_operand_object **return_object);
 200
 201 /*
 202  * nsdump - Namespace dump/print utilities
 203  */
 204 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth);
 205
 206 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level);
 207
 208 void
 209 acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component);
 210
 211 void acpi_ns_print_pathname(u32 num_segments, char *pathname);
 212
 213 acpi_status
 214 acpi_ns_dump_one_object(acpi_handle obj_handle,
 215                         u32 level, void *context, void **return_value);
 216
 217 void
 218 acpi_ns_dump_objects(acpi_object_type type,
 219                      u8 display_type,
 220                      u32 max_depth,
 221                      acpi_owner_id owner_id, acpi_handle start_handle);
 222
 223 void
 224 acpi_ns_dump_object_paths(acpi_object_type type,
 225                           u8 display_type,
 226                           u32 max_depth,
 227                           acpi_owner_id owner_id, acpi_handle start_handle);
 228
 229 /*
 230  * nseval - Namespace evaluation functions
 231  */
 232 acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info);
 233
 234 void acpi_ns_exec_module_code_list(void);
 235
 236 /*
 237  * nsarguments - Argument count/type checking for predefined/reserved names
 238  */
 239 void
 240 acpi_ns_check_argument_count(char *pathname,
 241                              struct acpi_namespace_node *node,
 242                              u32 user_param_count,
 243                              const union acpi_predefined_info *info);
 244
 245 void
 246 acpi_ns_check_acpi_compliance(char *pathname,
 247                               struct acpi_namespace_node *node,
 248                               const union acpi_predefined_info *predefined);
 249
 250 void acpi_ns_check_argument_types(struct acpi_evaluate_info *info);
 251
 252 /*
 253  * nspredef - Return value checking for predefined/reserved names
 254  */
 255 acpi_status
 256 acpi_ns_check_return_value(struct acpi_namespace_node *node,
 257                            struct acpi_evaluate_info *info,
 258                            u32 user_param_count,
 259                            acpi_status return_status,
 260                            union acpi_operand_object **return_object);
 261
 262 acpi_status
 263 acpi_ns_check_object_type(struct acpi_evaluate_info *info,
 264                           union acpi_operand_object **return_object_ptr,
 265                           u32 expected_btypes, u32 package_index);
 266
 267 /*
 268  * nsprepkg - Validation of predefined name packages
 269  */
 270 acpi_status
 271 acpi_ns_check_package(struct acpi_evaluate_info *info,
 272                       union acpi_operand_object **return_object_ptr);
 273
 274 /*
 275  * nsnames - Name and Scope manipulation
 276  */
 277 u32 acpi_ns_opens_scope(acpi_object_type type);
 278
 279 char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node);
 280
 281 u32
 282 acpi_ns_build_normalized_path(struct acpi_namespace_node *node,
 283                               char *full_path, u32 path_size, u8 no_trailing);
 284
 285 char *acpi_ns_get_normalized_pathname(struct acpi_namespace_node *node,
 286                                       u8 no_trailing);
 287
 288 char *acpi_ns_name_of_current_scope(struct acpi_walk_state *walk_state);
 289
 290 acpi_status
 291 acpi_ns_handle_to_pathname(acpi_handle target_handle,
 292                            struct acpi_buffer *buffer, u8 no_trailing);
 293
 294 u8
 295 acpi_ns_pattern_match(struct acpi_namespace_node *obj_node, char *search_for);
 296
 297 acpi_status
 298 acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
 299                  const char *external_pathname,
 300                  u32 flags, struct acpi_namespace_node **out_node);
 301
 302 acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node);
 303
 304 /*
 305  * nsobject - Object management for namespace nodes
 306  */
 307 acpi_status
 308 acpi_ns_attach_object(struct acpi_namespace_node *node,
 309                       union acpi_operand_object *object, acpi_object_type type);
 310
 311 union acpi_operand_object *acpi_ns_get_attached_object(struct
 312                                                        acpi_namespace_node
 313                                                        *node);
 314
 315 union acpi_operand_object *acpi_ns_get_secondary_object(union
 316                                                         acpi_operand_object
 317                                                         *obj_desc);
 318
 319 acpi_status
 320 acpi_ns_attach_data(struct acpi_namespace_node *node,
 321                     acpi_object_handler handler, void *data);
 322
 323 acpi_status
 324 acpi_ns_detach_data(struct acpi_namespace_node *node,
 325                     acpi_object_handler handler);
 326
 327 acpi_status
 328 acpi_ns_get_attached_data(struct acpi_namespace_node *node,
 329                           acpi_object_handler handler, void **data);
 330
 331 /*
 332  * nsrepair - General return object repair for all
 333  * predefined methods/objects
 334  */
 335 acpi_status
 336 acpi_ns_simple_repair(struct acpi_evaluate_info *info,
 337                       u32 expected_btypes,
 338                       u32 package_index,
 339                       union acpi_operand_object **return_object_ptr);
 340
 341 acpi_status
 342 acpi_ns_wrap_with_package(struct acpi_evaluate_info *info,
 343                           union acpi_operand_object *original_object,
 344                           union acpi_operand_object **obj_desc_ptr);
 345
 346 acpi_status
 347 acpi_ns_repair_null_element(struct acpi_evaluate_info *info,
 348                             u32 expected_btypes,
 349                             u32 package_index,
 350                             union acpi_operand_object **return_object_ptr);
 351
 352 void
 353 acpi_ns_remove_null_elements(struct acpi_evaluate_info *info,
 354                              u8 package_type,
 355                              union acpi_operand_object *obj_desc);
 356
 357 /*
 358  * nsrepair2 - Return object repair for specific
 359  * predefined methods/objects
 360  */
 361 acpi_status
 362 acpi_ns_complex_repairs(struct acpi_evaluate_info *info,
 363                         struct acpi_namespace_node *node,
 364                         acpi_status validate_status,
 365                         union acpi_operand_object **return_object_ptr);
 366
 367 /*
 368  * nssearch - Namespace searching and entry
 369  */
 370 acpi_status
 371 acpi_ns_search_and_enter(u32 entry_name,
 372                          struct acpi_walk_state *walk_state,
 373                          struct acpi_namespace_node *node,
 374                          acpi_interpreter_mode interpreter_mode,
 375                          acpi_object_type type,
 376                          u32 flags, struct acpi_namespace_node **ret_node);
 377
 378 acpi_status
 379 acpi_ns_search_one_scope(u32 entry_name,
 380                          struct acpi_namespace_node *node,
 381                          acpi_object_type type,
 382                          struct acpi_namespace_node **ret_node);
 383
 384 void
 385 acpi_ns_install_node(struct acpi_walk_state *walk_state,
 386                      struct acpi_namespace_node *parent_node,
 387                      struct acpi_namespace_node *node, acpi_object_type type);
 388
 389 /*
 390  * nsutils - Utility functions
 391  */
 392 acpi_object_type acpi_ns_get_type(struct acpi_namespace_node *node);
 393
 394 u32 acpi_ns_local(acpi_object_type type);
 395
 396 void
 397 acpi_ns_print_node_pathname(struct acpi_namespace_node *node, const char *msg);
 398
 399 acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info);
 400
 401 void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info);
 402
 403 acpi_status
 404 acpi_ns_internalize_name(const char *dotted_name, char **converted_name);
 405
 406 acpi_status
 407 acpi_ns_externalize_name(u32 internal_name_length,
 408                          const char *internal_name,
 409                          u32 * converted_name_length, char **converted_name);
 410
 411 struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle);
 412
 413 void acpi_ns_terminate(void);
 414
 415 #endif                          /* __ACNAMESP_H__ */