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 - 2023, 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__ */ 403