root/drivers/acpi/acpica/acnamesp.h

INCLUDED FROM

   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 - 2019, 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 #define ACPI_NS_PREFIX_MUST_EXIST   0x0200
  38 
  39 /* Flags for acpi_ns_walk_namespace */
  40 
  41 #define ACPI_NS_WALK_NO_UNLOCK      0
  42 #define ACPI_NS_WALK_UNLOCK         0x01
  43 #define ACPI_NS_WALK_TEMP_NODES     0x02
  44 
  45 /* Object is not a package element */
  46 
  47 #define ACPI_NOT_PACKAGE_ELEMENT    ACPI_UINT32_MAX
  48 #define ACPI_ALL_PACKAGE_ELEMENTS   (ACPI_UINT32_MAX-1)
  49 
  50 /* Always emit warning message, not dependent on node flags */
  51 
  52 #define ACPI_WARN_ALWAYS            0
  53 
  54 /*
  55  * nsinit - Namespace initialization
  56  */
  57 acpi_status acpi_ns_initialize_objects(void);
  58 
  59 acpi_status acpi_ns_initialize_devices(u32 flags);
  60 
  61 acpi_status
  62 acpi_ns_init_one_package(acpi_handle obj_handle,
  63                          u32 level, void *context, void **return_value);
  64 
  65 /*
  66  * nsload -  Namespace loading
  67  */
  68 acpi_status acpi_ns_load_namespace(void);
  69 
  70 acpi_status
  71 acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node);
  72 
  73 /*
  74  * nswalk - walk the namespace
  75  */
  76 acpi_status
  77 acpi_ns_walk_namespace(acpi_object_type type,
  78                        acpi_handle start_object,
  79                        u32 max_depth,
  80                        u32 flags,
  81                        acpi_walk_callback descending_callback,
  82                        acpi_walk_callback ascending_callback,
  83                        void *context, void **return_value);
  84 
  85 struct acpi_namespace_node *acpi_ns_get_next_node(struct acpi_namespace_node
  86                                                   *parent,
  87                                                   struct acpi_namespace_node
  88                                                   *child);
  89 
  90 struct acpi_namespace_node *acpi_ns_get_next_node_typed(acpi_object_type type,
  91                                                         struct
  92                                                         acpi_namespace_node
  93                                                         *parent,
  94                                                         struct
  95                                                         acpi_namespace_node
  96                                                         *child);
  97 
  98 /*
  99  * nsparse - table parsing
 100  */
 101 acpi_status
 102 acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node);
 103 
 104 acpi_status
 105 acpi_ns_execute_table(u32 table_index, struct acpi_namespace_node *start_node);
 106 
 107 acpi_status
 108 acpi_ns_one_complete_parse(u32 pass_number,
 109                            u32 table_index,
 110                            struct acpi_namespace_node *start_node);
 111 
 112 /*
 113  * nsaccess - Top-level namespace access
 114  */
 115 acpi_status acpi_ns_root_initialize(void);
 116 
 117 acpi_status
 118 acpi_ns_lookup(union acpi_generic_state *scope_info,
 119                char *name,
 120                acpi_object_type type,
 121                acpi_interpreter_mode interpreter_mode,
 122                u32 flags,
 123                struct acpi_walk_state *walk_state,
 124                struct acpi_namespace_node **ret_node);
 125 
 126 /*
 127  * nsalloc - Named object allocation/deallocation
 128  */
 129 struct acpi_namespace_node *acpi_ns_create_node(u32 name);
 130 
 131 void acpi_ns_delete_node(struct acpi_namespace_node *node);
 132 
 133 void acpi_ns_remove_node(struct acpi_namespace_node *node);
 134 
 135 void
 136 acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_handle);
 137 
 138 void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id);
 139 
 140 void acpi_ns_detach_object(struct acpi_namespace_node *node);
 141 
 142 void acpi_ns_delete_children(struct acpi_namespace_node *parent);
 143 
 144 int acpi_ns_compare_names(char *name1, char *name2);
 145 
 146 /*
 147  * nsconvert - Dynamic object conversion routines
 148  */
 149 acpi_status
 150 acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
 151                            union acpi_operand_object **return_object);
 152 
 153 acpi_status
 154 acpi_ns_convert_to_string(union acpi_operand_object *original_object,
 155                           union acpi_operand_object **return_object);
 156 
 157 acpi_status
 158 acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
 159                           union acpi_operand_object **return_object);
 160 
 161 acpi_status
 162 acpi_ns_convert_to_unicode(struct acpi_namespace_node *scope,
 163                            union acpi_operand_object *original_object,
 164                            union acpi_operand_object **return_object);
 165 
 166 acpi_status
 167 acpi_ns_convert_to_resource(struct acpi_namespace_node *scope,
 168                             union acpi_operand_object *original_object,
 169                             union acpi_operand_object **return_object);
 170 
 171 acpi_status
 172 acpi_ns_convert_to_reference(struct acpi_namespace_node *scope,
 173                              union acpi_operand_object *original_object,
 174                              union acpi_operand_object **return_object);
 175 
 176 /*
 177  * nsdump - Namespace dump/print utilities
 178  */
 179 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth);
 180 
 181 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level);
 182 
 183 void
 184 acpi_ns_dump_pathname(acpi_handle handle,
 185                       const char *msg, u32 level, u32 component);
 186 
 187 void acpi_ns_print_pathname(u32 num_segments, const char *pathname);
 188 
 189 acpi_status
 190 acpi_ns_dump_one_object(acpi_handle obj_handle,
 191                         u32 level, void *context, void **return_value);
 192 
 193 void
 194 acpi_ns_dump_objects(acpi_object_type type,
 195                      u8 display_type,
 196                      u32 max_depth,
 197                      acpi_owner_id owner_id, acpi_handle start_handle);
 198 
 199 void
 200 acpi_ns_dump_object_paths(acpi_object_type type,
 201                           u8 display_type,
 202                           u32 max_depth,
 203                           acpi_owner_id owner_id, acpi_handle start_handle);
 204 
 205 /*
 206  * nseval - Namespace evaluation functions
 207  */
 208 acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info);
 209 
 210 /*
 211  * nsarguments - Argument count/type checking for predefined/reserved names
 212  */
 213 void
 214 acpi_ns_check_argument_count(char *pathname,
 215                              struct acpi_namespace_node *node,
 216                              u32 user_param_count,
 217                              const union acpi_predefined_info *info);
 218 
 219 void
 220 acpi_ns_check_acpi_compliance(char *pathname,
 221                               struct acpi_namespace_node *node,
 222                               const union acpi_predefined_info *predefined);
 223 
 224 void acpi_ns_check_argument_types(struct acpi_evaluate_info *info);
 225 
 226 /*
 227  * nspredef - Return value checking for predefined/reserved names
 228  */
 229 acpi_status
 230 acpi_ns_check_return_value(struct acpi_namespace_node *node,
 231                            struct acpi_evaluate_info *info,
 232                            u32 user_param_count,
 233                            acpi_status return_status,
 234                            union acpi_operand_object **return_object);
 235 
 236 acpi_status
 237 acpi_ns_check_object_type(struct acpi_evaluate_info *info,
 238                           union acpi_operand_object **return_object_ptr,
 239                           u32 expected_btypes, u32 package_index);
 240 
 241 /*
 242  * nsprepkg - Validation of predefined name packages
 243  */
 244 acpi_status
 245 acpi_ns_check_package(struct acpi_evaluate_info *info,
 246                       union acpi_operand_object **return_object_ptr);
 247 
 248 /*
 249  * nsnames - Name and Scope manipulation
 250  */
 251 u32 acpi_ns_opens_scope(acpi_object_type type);
 252 
 253 char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node);
 254 
 255 u32
 256 acpi_ns_build_normalized_path(struct acpi_namespace_node *node,
 257                               char *full_path, u32 path_size, u8 no_trailing);
 258 
 259 void acpi_ns_normalize_pathname(char *original_path);
 260 
 261 char *acpi_ns_get_normalized_pathname(struct acpi_namespace_node *node,
 262                                       u8 no_trailing);
 263 
 264 char *acpi_ns_build_prefixed_pathname(union acpi_generic_state *prefix_scope,
 265                                       const char *internal_path);
 266 
 267 char *acpi_ns_name_of_current_scope(struct acpi_walk_state *walk_state);
 268 
 269 acpi_status
 270 acpi_ns_handle_to_name(acpi_handle target_handle, struct acpi_buffer *buffer);
 271 
 272 acpi_status
 273 acpi_ns_handle_to_pathname(acpi_handle target_handle,
 274                            struct acpi_buffer *buffer, u8 no_trailing);
 275 
 276 u8
 277 acpi_ns_pattern_match(struct acpi_namespace_node *obj_node, char *search_for);
 278 
 279 acpi_status
 280 acpi_ns_get_node_unlocked(struct acpi_namespace_node *prefix_node,
 281                           const char *external_pathname,
 282                           u32 flags, struct acpi_namespace_node **out_node);
 283 
 284 acpi_status
 285 acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
 286                  const char *external_pathname,
 287                  u32 flags, struct acpi_namespace_node **out_node);
 288 
 289 acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node);
 290 
 291 /*
 292  * nsobject - Object management for namespace nodes
 293  */
 294 acpi_status
 295 acpi_ns_attach_object(struct acpi_namespace_node *node,
 296                       union acpi_operand_object *object, acpi_object_type type);
 297 
 298 union acpi_operand_object *acpi_ns_get_attached_object(struct
 299                                                        acpi_namespace_node
 300                                                        *node);
 301 
 302 union acpi_operand_object *acpi_ns_get_secondary_object(union
 303                                                         acpi_operand_object
 304                                                         *obj_desc);
 305 
 306 acpi_status
 307 acpi_ns_attach_data(struct acpi_namespace_node *node,
 308                     acpi_object_handler handler, void *data);
 309 
 310 acpi_status
 311 acpi_ns_detach_data(struct acpi_namespace_node *node,
 312                     acpi_object_handler handler);
 313 
 314 acpi_status
 315 acpi_ns_get_attached_data(struct acpi_namespace_node *node,
 316                           acpi_object_handler handler, void **data);
 317 
 318 /*
 319  * nsrepair - General return object repair for all
 320  * predefined methods/objects
 321  */
 322 acpi_status
 323 acpi_ns_simple_repair(struct acpi_evaluate_info *info,
 324                       u32 expected_btypes,
 325                       u32 package_index,
 326                       union acpi_operand_object **return_object_ptr);
 327 
 328 acpi_status
 329 acpi_ns_wrap_with_package(struct acpi_evaluate_info *info,
 330                           union acpi_operand_object *original_object,
 331                           union acpi_operand_object **obj_desc_ptr);
 332 
 333 acpi_status
 334 acpi_ns_repair_null_element(struct acpi_evaluate_info *info,
 335                             u32 expected_btypes,
 336                             u32 package_index,
 337                             union acpi_operand_object **return_object_ptr);
 338 
 339 void
 340 acpi_ns_remove_null_elements(struct acpi_evaluate_info *info,
 341                              u8 package_type,
 342                              union acpi_operand_object *obj_desc);
 343 
 344 /*
 345  * nsrepair2 - Return object repair for specific
 346  * predefined methods/objects
 347  */
 348 acpi_status
 349 acpi_ns_complex_repairs(struct acpi_evaluate_info *info,
 350                         struct acpi_namespace_node *node,
 351                         acpi_status validate_status,
 352                         union acpi_operand_object **return_object_ptr);
 353 
 354 /*
 355  * nssearch - Namespace searching and entry
 356  */
 357 acpi_status
 358 acpi_ns_search_and_enter(u32 entry_name,
 359                          struct acpi_walk_state *walk_state,
 360                          struct acpi_namespace_node *node,
 361                          acpi_interpreter_mode interpreter_mode,
 362                          acpi_object_type type,
 363                          u32 flags, struct acpi_namespace_node **ret_node);
 364 
 365 acpi_status
 366 acpi_ns_search_one_scope(u32 entry_name,
 367                          struct acpi_namespace_node *node,
 368                          acpi_object_type type,
 369                          struct acpi_namespace_node **ret_node);
 370 
 371 void
 372 acpi_ns_install_node(struct acpi_walk_state *walk_state,
 373                      struct acpi_namespace_node *parent_node,
 374                      struct acpi_namespace_node *node, acpi_object_type type);
 375 
 376 /*
 377  * nsutils - Utility functions
 378  */
 379 acpi_object_type acpi_ns_get_type(struct acpi_namespace_node *node);
 380 
 381 u32 acpi_ns_local(acpi_object_type type);
 382 
 383 void
 384 acpi_ns_print_node_pathname(struct acpi_namespace_node *node, const char *msg);
 385 
 386 acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info);
 387 
 388 void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info);
 389 
 390 acpi_status
 391 acpi_ns_internalize_name(const char *dotted_name, char **converted_name);
 392 
 393 acpi_status
 394 acpi_ns_externalize_name(u32 internal_name_length,
 395                          const char *internal_name,
 396                          u32 * converted_name_length, char **converted_name);
 397 
 398 struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle);
 399 
 400 void acpi_ns_terminate(void);
 401 
 402 #endif                          /* __ACNAMESP_H__ */