drivers/acpi/acpica/acnamesp.h

   1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
   2 /******************************************************************************
   3  *
   4  * Name: acnamesp.h - Namespace subcomponent prototypes and defines
   5  *
   6  * Copyright (C) 2000 - 2018, Intel Corp.
   7  *
   8  *****************************************************************************/
   9
  10 #ifndef __ACNAMESP_H__
  11 #define __ACNAMESP_H__
  12
  13 /* To search the entire name space, pass this as search_base */
  14
  15 #define ACPI_NS_ALL                 ((acpi_handle)0)
  16
  17 /*
  18  * Elements of acpi_ns_properties are bit significant
  19  * and should be one-to-one with values of acpi_object_type
  20  */
  21 #define ACPI_NS_NORMAL              0
  22 #define ACPI_NS_NEWSCOPE            1   /* a definition of this type opens a name scope */
  23 #define ACPI_NS_LOCAL               2   /* suppress search of enclosing scopes */
  24
  25 /* Flags for acpi_ns_lookup, acpi_ns_search_and_enter */
  26
  27 #define ACPI_NS_NO_UPSEARCH         0
  28 #define ACPI_NS_SEARCH_PARENT       0x0001
  29 #define ACPI_NS_DONT_OPEN_SCOPE     0x0002
  30 #define ACPI_NS_NO_PEER_SEARCH      0x0004
  31 #define ACPI_NS_ERROR_IF_FOUND      0x0008
  32 #define ACPI_NS_PREFIX_IS_SCOPE     0x0010
  33 #define ACPI_NS_EXTERNAL            0x0020
  34 #define ACPI_NS_TEMPORARY           0x0040
  35 #define ACPI_NS_OVERRIDE_IF_FOUND   0x0080
  36 #define ACPI_NS_EARLY_INIT          0x0100
  37
  38 /* Flags for acpi_ns_walk_namespace */
  39
  40 #define ACPI_NS_WALK_NO_UNLOCK      0
  41 #define ACPI_NS_WALK_UNLOCK         0x01
  42 #define ACPI_NS_WALK_TEMP_NODES     0x02
  43
  44 /* Object is not a package element */
  45
  46 #define ACPI_NOT_PACKAGE_ELEMENT    ACPI_UINT32_MAX
  47 #define ACPI_ALL_PACKAGE_ELEMENTS   (ACPI_UINT32_MAX-1)
  48
  49 /* Always emit warning message, not dependent on node flags */
  50
  51 #define ACPI_WARN_ALWAYS            0
  52
  53 /*
  54  * nsinit - Namespace initialization
  55  */
  56 acpi_status acpi_ns_initialize_objects(void);
  57
  58 acpi_status acpi_ns_initialize_devices(u32 flags);
  59
  60 acpi_status
  61 acpi_ns_init_one_package(acpi_handle obj_handle,
  62                          u32 level, void *context, void **return_value);
  63
  64 /*
  65  * nsload -  Namespace loading
  66  */
  67 acpi_status acpi_ns_load_namespace(void);
  68
  69 acpi_status
  70 acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node);
  71
  72 /*
  73  * nswalk - walk the namespace
  74  */
  75 acpi_status
  76 acpi_ns_walk_namespace(acpi_object_type type,
  77                        acpi_handle start_object,
  78                        u32 max_depth,
  79                        u32 flags,
  80                        acpi_walk_callback descending_callback,
  81                        acpi_walk_callback ascending_callback,
  82                        void *context, void **return_value);
  83
  84 struct acpi_namespace_node *acpi_ns_get_next_node(struct acpi_namespace_node
  85                                                   *parent,
  86                                                   struct acpi_namespace_node
  87                                                   *child);
  88
  89 struct acpi_namespace_node *acpi_ns_get_next_node_typed(acpi_object_type type,
  90                                                         struct
  91                                                         acpi_namespace_node
  92                                                         *parent,
  93                                                         struct
  94                                                         acpi_namespace_node
  95                                                         *child);
  96
  97 /*
  98  * nsparse - table parsing
  99  */
 100 acpi_status
 101 acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node);
 102
 103 acpi_status
 104 acpi_ns_execute_table(u32 table_index, struct acpi_namespace_node *start_node);
 105
 106 acpi_status
 107 acpi_ns_one_complete_parse(u32 pass_number,
 108                            u32 table_index,
 109                            struct acpi_namespace_node *start_node);
 110
 111 /*
 112  * nsaccess - Top-level namespace access
 113  */
 114 acpi_status acpi_ns_root_initialize(void);
 115
 116 acpi_status
 117 acpi_ns_lookup(union acpi_generic_state *scope_info,
 118                char *name,
 119                acpi_object_type type,
 120                acpi_interpreter_mode interpreter_mode,
 121                u32 flags,
 122                struct acpi_walk_state *walk_state,
 123                struct acpi_namespace_node **ret_node);
 124
 125 /*
 126  * nsalloc - Named object allocation/deallocation
 127  */
 128 struct acpi_namespace_node *acpi_ns_create_node(u32 name);
 129
 130 void acpi_ns_delete_node(struct acpi_namespace_node *node);
 131
 132 void acpi_ns_remove_node(struct acpi_namespace_node *node);
 133
 134 void
 135 acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_handle);
 136
 137 void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id);
 138
 139 void acpi_ns_detach_object(struct acpi_namespace_node *node);
 140
 141 void acpi_ns_delete_children(struct acpi_namespace_node *parent);
 142
 143 int acpi_ns_compare_names(char *name1, char *name2);
 144
 145 /*
 146  * nsconvert - Dynamic object conversion routines
 147  */
 148 acpi_status
 149 acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
 150                            union acpi_operand_object **return_object);
 151
 152 acpi_status
 153 acpi_ns_convert_to_string(union acpi_operand_object *original_object,
 154                           union acpi_operand_object **return_object);
 155
 156 acpi_status
 157 acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
 158                           union acpi_operand_object **return_object);
 159
 160 acpi_status
 161 acpi_ns_convert_to_unicode(struct acpi_namespace_node *scope,
 162                            union acpi_operand_object *original_object,
 163                            union acpi_operand_object **return_object);
 164
 165 acpi_status
 166 acpi_ns_convert_to_resource(struct acpi_namespace_node *scope,
 167                             union acpi_operand_object *original_object,
 168                             union acpi_operand_object **return_object);
 169
 170 acpi_status
 171 acpi_ns_convert_to_reference(struct acpi_namespace_node *scope,
 172                              union acpi_operand_object *original_object,
 173                              union acpi_operand_object **return_object);
 174
 175 /*
 176  * nsdump - Namespace dump/print utilities
 177  */
 178 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth);
 179
 180 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level);
 181
 182 void
 183 acpi_ns_dump_pathname(acpi_handle handle,
 184                       const char *msg, u32 level, u32 component);
 185
 186 void acpi_ns_print_pathname(u32 num_segments, const char *pathname);
 187
 188 acpi_status
 189 acpi_ns_dump_one_object(acpi_handle obj_handle,
 190                         u32 level, void *context, void **return_value);
 191
 192 void
 193 acpi_ns_dump_objects(acpi_object_type type,
 194                      u8 display_type,
 195                      u32 max_depth,
 196                      acpi_owner_id owner_id, acpi_handle start_handle);
 197
 198 void
 199 acpi_ns_dump_object_paths(acpi_object_type type,
 200                           u8 display_type,
 201                           u32 max_depth,
 202                           acpi_owner_id owner_id, acpi_handle start_handle);
 203
 204 /*
 205  * nseval - Namespace evaluation functions
 206  */
 207 acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info);
 208
 209 void acpi_ns_exec_module_code_list(void);
 210
 211 /*
 212  * nsarguments - Argument count/type checking for predefined/reserved names
 213  */
 214 void
 215 acpi_ns_check_argument_count(char *pathname,
 216                              struct acpi_namespace_node *node,
 217                              u32 user_param_count,
 218                              const union acpi_predefined_info *info);
 219
 220 void
 221 acpi_ns_check_acpi_compliance(char *pathname,
 222                               struct acpi_namespace_node *node,
 223                               const union acpi_predefined_info *predefined);
 224
 225 void acpi_ns_check_argument_types(struct acpi_evaluate_info *info);
 226
 227 /*
 228  * nspredef - Return value checking for predefined/reserved names
 229  */
 230 acpi_status
 231 acpi_ns_check_return_value(struct acpi_namespace_node *node,
 232                            struct acpi_evaluate_info *info,
 233                            u32 user_param_count,
 234                            acpi_status return_status,
 235                            union acpi_operand_object **return_object);
 236
 237 acpi_status
 238 acpi_ns_check_object_type(struct acpi_evaluate_info *info,
 239                           union acpi_operand_object **return_object_ptr,
 240                           u32 expected_btypes, u32 package_index);
 241
 242 /*
 243  * nsprepkg - Validation of predefined name packages
 244  */
 245 acpi_status
 246 acpi_ns_check_package(struct acpi_evaluate_info *info,
 247                       union acpi_operand_object **return_object_ptr);
 248
 249 /*
 250  * nsnames - Name and Scope manipulation
 251  */
 252 u32 acpi_ns_opens_scope(acpi_object_type type);
 253
 254 char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node);
 255
 256 u32
 257 acpi_ns_build_normalized_path(struct acpi_namespace_node *node,
 258                               char *full_path, u32 path_size, u8 no_trailing);
 259
 260 char *acpi_ns_get_normalized_pathname(struct acpi_namespace_node *node,
 261                                       u8 no_trailing);
 262
 263 char *acpi_ns_build_prefixed_pathname(union acpi_generic_state *prefix_scope,
 264                                       const char *internal_path);
 265
 266 char *acpi_ns_name_of_current_scope(struct acpi_walk_state *walk_state);
 267
 268 acpi_status
 269 acpi_ns_handle_to_name(acpi_handle target_handle, struct acpi_buffer *buffer);
 270
 271 acpi_status
 272 acpi_ns_handle_to_pathname(acpi_handle target_handle,
 273                            struct acpi_buffer *buffer, u8 no_trailing);
 274
 275 u8
 276 acpi_ns_pattern_match(struct acpi_namespace_node *obj_node, char *search_for);
 277
 278 acpi_status
 279 acpi_ns_get_node_unlocked(struct acpi_namespace_node *prefix_node,
 280                           const char *external_pathname,
 281                           u32 flags, struct acpi_namespace_node **out_node);
 282
 283 acpi_status
 284 acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
 285                  const char *external_pathname,
 286                  u32 flags, struct acpi_namespace_node **out_node);
 287
 288 acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node);
 289
 290 /*
 291  * nsobject - Object management for namespace nodes
 292  */
 293 acpi_status
 294 acpi_ns_attach_object(struct acpi_namespace_node *node,
 295                       union acpi_operand_object *object, acpi_object_type type);
 296
 297 union acpi_operand_object *acpi_ns_get_attached_object(struct
 298                                                        acpi_namespace_node
 299                                                        *node);
 300
 301 union acpi_operand_object *acpi_ns_get_secondary_object(union
 302                                                         acpi_operand_object
 303                                                         *obj_desc);
 304
 305 acpi_status
 306 acpi_ns_attach_data(struct acpi_namespace_node *node,
 307                     acpi_object_handler handler, void *data);
 308
 309 acpi_status
 310 acpi_ns_detach_data(struct acpi_namespace_node *node,
 311                     acpi_object_handler handler);
 312
 313 acpi_status
 314 acpi_ns_get_attached_data(struct acpi_namespace_node *node,
 315                           acpi_object_handler handler, void **data);
 316
 317 /*
 318  * nsrepair - General return object repair for all
 319  * predefined methods/objects
 320  */
 321 acpi_status
 322 acpi_ns_simple_repair(struct acpi_evaluate_info *info,
 323                       u32 expected_btypes,
 324                       u32 package_index,
 325                       union acpi_operand_object **return_object_ptr);
 326
 327 acpi_status
 328 acpi_ns_wrap_with_package(struct acpi_evaluate_info *info,
 329                           union acpi_operand_object *original_object,
 330                           union acpi_operand_object **obj_desc_ptr);
 331
 332 acpi_status
 333 acpi_ns_repair_null_element(struct acpi_evaluate_info *info,
 334                             u32 expected_btypes,
 335                             u32 package_index,
 336                             union acpi_operand_object **return_object_ptr);
 337
 338 void
 339 acpi_ns_remove_null_elements(struct acpi_evaluate_info *info,
 340                              u8 package_type,
 341                              union acpi_operand_object *obj_desc);
 342
 343 /*
 344  * nsrepair2 - Return object repair for specific
 345  * predefined methods/objects
 346  */
 347 acpi_status
 348 acpi_ns_complex_repairs(struct acpi_evaluate_info *info,
 349                         struct acpi_namespace_node *node,
 350                         acpi_status validate_status,
 351                         union acpi_operand_object **return_object_ptr);
 352
 353 /*
 354  * nssearch - Namespace searching and entry
 355  */
 356 acpi_status
 357 acpi_ns_search_and_enter(u32 entry_name,
 358                          struct acpi_walk_state *walk_state,
 359                          struct acpi_namespace_node *node,
 360                          acpi_interpreter_mode interpreter_mode,
 361                          acpi_object_type type,
 362                          u32 flags, struct acpi_namespace_node **ret_node);
 363
 364 acpi_status
 365 acpi_ns_search_one_scope(u32 entry_name,
 366                          struct acpi_namespace_node *node,
 367                          acpi_object_type type,
 368                          struct acpi_namespace_node **ret_node);
 369
 370 void
 371 acpi_ns_install_node(struct acpi_walk_state *walk_state,
 372                      struct acpi_namespace_node *parent_node,
 373                      struct acpi_namespace_node *node, acpi_object_type type);
 374
 375 /*
 376  * nsutils - Utility functions
 377  */
 378 acpi_object_type acpi_ns_get_type(struct acpi_namespace_node *node);
 379
 380 u32 acpi_ns_local(acpi_object_type type);
 381
 382 void
 383 acpi_ns_print_node_pathname(struct acpi_namespace_node *node, const char *msg);
 384
 385 acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info);
 386
 387 void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info);
 388
 389 acpi_status
 390 acpi_ns_internalize_name(const char *dotted_name, char **converted_name);
 391
 392 acpi_status
 393 acpi_ns_externalize_name(u32 internal_name_length,
 394                          const char *internal_name,
 395                          u32 * converted_name_length, char **converted_name);
 396
 397 struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle);
 398
 399 void acpi_ns_terminate(void);
 400
 401 #endif                          /* __ACNAMESP_H__ */