drivers/acpi/acpica/acnamesp.h

   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  */
  88 acpi_status acpi_ns_initialize_objects(void);
  89
  90 acpi_status acpi_ns_initialize_devices(void);
  91
  92 /*
  93  * nsload -  Namespace loading
  94  */
  95 acpi_status acpi_ns_load_namespace(void);
  96
  97 acpi_status
  98 acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node);
  99
 100 /*
 101  * nswalk - walk the namespace
 102  */
 103 acpi_status
 104 acpi_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
 112 struct acpi_namespace_node *acpi_ns_get_next_node(struct acpi_namespace_node
 113                                                   *parent,
 114                                                   struct acpi_namespace_node
 115                                                   *child);
 116
 117 struct 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  */
 128 acpi_status
 129 acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node);
 130
 131 acpi_status
 132 acpi_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  */
 139 acpi_status acpi_ns_root_initialize(void);
 140
 141 acpi_status
 142 acpi_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  */
 153 struct acpi_namespace_node *acpi_ns_create_node(u32 name);
 154
 155 void acpi_ns_delete_node(struct acpi_namespace_node *node);
 156
 157 void acpi_ns_remove_node(struct acpi_namespace_node *node);
 158
 159 void
 160 acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_handle);
 161
 162 void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id);
 163
 164 void acpi_ns_detach_object(struct acpi_namespace_node *node);
 165
 166 void acpi_ns_delete_children(struct acpi_namespace_node *parent);
 167
 168 int acpi_ns_compare_names(char *name1, char *name2);
 169
 170 /*
 171  * nsconvert - Dynamic object conversion routines
 172  */
 173 acpi_status
 174 acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
 175                            union acpi_operand_object **return_object);
 176
 177 acpi_status
 178 acpi_ns_convert_to_string(union acpi_operand_object *original_object,
 179                           union acpi_operand_object **return_object);
 180
 181 acpi_status
 182 acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
 183                           union acpi_operand_object **return_object);
 184
 185 acpi_status
 186 acpi_ns_convert_to_unicode(union acpi_operand_object *original_object,
 187                            union acpi_operand_object **return_object);
 188
 189 acpi_status
 190 acpi_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  */
 196 #ifdef  ACPI_FUTURE_USAGE
 197 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth);
 198 #endif                          /* ACPI_FUTURE_USAGE */
 199
 200 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level);
 201
 202 void
 203 acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component);
 204
 205 void acpi_ns_print_pathname(u32 num_segments, char *pathname);
 206
 207 acpi_status
 208 acpi_ns_dump_one_object(acpi_handle obj_handle,
 209                         u32 level, void *context, void **return_value);
 210
 211 #ifdef  ACPI_FUTURE_USAGE
 212 void
 213 acpi_ns_dump_objects(acpi_object_type type,
 214                      u8 display_type,
 215                      u32 max_depth,
 216                      acpi_owner_id owner_id, acpi_handle start_handle);
 217
 218 void
 219 acpi_ns_dump_object_paths(acpi_object_type type,
 220                           u8 display_type,
 221                           u32 max_depth,
 222                           acpi_owner_id owner_id, acpi_handle start_handle);
 223 #endif                          /* ACPI_FUTURE_USAGE */
 224
 225 /*
 226  * nseval - Namespace evaluation functions
 227  */
 228 acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info);
 229
 230 void acpi_ns_exec_module_code_list(void);
 231
 232 /*
 233  * nsarguments - Argument count/type checking for predefined/reserved names
 234  */
 235 void
 236 acpi_ns_check_argument_count(char *pathname,
 237                              struct acpi_namespace_node *node,
 238                              u32 user_param_count,
 239                              const union acpi_predefined_info *info);
 240
 241 void
 242 acpi_ns_check_acpi_compliance(char *pathname,
 243                               struct acpi_namespace_node *node,
 244                               const union acpi_predefined_info *predefined);
 245
 246 void acpi_ns_check_argument_types(struct acpi_evaluate_info *info);
 247
 248 /*
 249  * nspredef - Return value checking for predefined/reserved names
 250  */
 251 acpi_status
 252 acpi_ns_check_return_value(struct acpi_namespace_node *node,
 253                            struct acpi_evaluate_info *info,
 254                            u32 user_param_count,
 255                            acpi_status return_status,
 256                            union acpi_operand_object **return_object);
 257
 258 acpi_status
 259 acpi_ns_check_object_type(struct acpi_evaluate_info *info,
 260                           union acpi_operand_object **return_object_ptr,
 261                           u32 expected_btypes, u32 package_index);
 262
 263 /*
 264  * nsprepkg - Validation of predefined name packages
 265  */
 266 acpi_status
 267 acpi_ns_check_package(struct acpi_evaluate_info *info,
 268                       union acpi_operand_object **return_object_ptr);
 269
 270 /*
 271  * nsnames - Name and Scope manipulation
 272  */
 273 u32 acpi_ns_opens_scope(acpi_object_type type);
 274
 275 acpi_status
 276 acpi_ns_build_external_path(struct acpi_namespace_node *node,
 277                             acpi_size size, char *name_buffer);
 278
 279 char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node);
 280
 281 char *acpi_ns_name_of_current_scope(struct acpi_walk_state *walk_state);
 282
 283 acpi_status
 284 acpi_ns_handle_to_pathname(acpi_handle target_handle,
 285                            struct acpi_buffer *buffer);
 286
 287 u8
 288 acpi_ns_pattern_match(struct acpi_namespace_node *obj_node, char *search_for);
 289
 290 acpi_status
 291 acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
 292                  const char *external_pathname,
 293                  u32 flags, struct acpi_namespace_node **out_node);
 294
 295 acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node);
 296
 297 /*
 298  * nsobject - Object management for namespace nodes
 299  */
 300 acpi_status
 301 acpi_ns_attach_object(struct acpi_namespace_node *node,
 302                       union acpi_operand_object *object, acpi_object_type type);
 303
 304 union acpi_operand_object *acpi_ns_get_attached_object(struct
 305                                                        acpi_namespace_node
 306                                                        *node);
 307
 308 union acpi_operand_object *acpi_ns_get_secondary_object(union
 309                                                         acpi_operand_object
 310                                                         *obj_desc);
 311
 312 acpi_status
 313 acpi_ns_attach_data(struct acpi_namespace_node *node,
 314                     acpi_object_handler handler, void *data);
 315
 316 acpi_status
 317 acpi_ns_detach_data(struct acpi_namespace_node *node,
 318                     acpi_object_handler handler);
 319
 320 acpi_status
 321 acpi_ns_get_attached_data(struct acpi_namespace_node *node,
 322                           acpi_object_handler handler, void **data);
 323
 324 /*
 325  * nsrepair - General return object repair for all
 326  * predefined methods/objects
 327  */
 328 acpi_status
 329 acpi_ns_simple_repair(struct acpi_evaluate_info *info,
 330                       u32 expected_btypes,
 331                       u32 package_index,
 332                       union acpi_operand_object **return_object_ptr);
 333
 334 acpi_status
 335 acpi_ns_wrap_with_package(struct acpi_evaluate_info *info,
 336                           union acpi_operand_object *original_object,
 337                           union acpi_operand_object **obj_desc_ptr);
 338
 339 acpi_status
 340 acpi_ns_repair_null_element(struct acpi_evaluate_info *info,
 341                             u32 expected_btypes,
 342                             u32 package_index,
 343                             union acpi_operand_object **return_object_ptr);
 344
 345 void
 346 acpi_ns_remove_null_elements(struct acpi_evaluate_info *info,
 347                              u8 package_type,
 348                              union acpi_operand_object *obj_desc);
 349
 350 /*
 351  * nsrepair2 - Return object repair for specific
 352  * predefined methods/objects
 353  */
 354 acpi_status
 355 acpi_ns_complex_repairs(struct acpi_evaluate_info *info,
 356                         struct acpi_namespace_node *node,
 357                         acpi_status validate_status,
 358                         union acpi_operand_object **return_object_ptr);
 359
 360 /*
 361  * nssearch - Namespace searching and entry
 362  */
 363 acpi_status
 364 acpi_ns_search_and_enter(u32 entry_name,
 365                          struct acpi_walk_state *walk_state,
 366                          struct acpi_namespace_node *node,
 367                          acpi_interpreter_mode interpreter_mode,
 368                          acpi_object_type type,
 369                          u32 flags, struct acpi_namespace_node **ret_node);
 370
 371 acpi_status
 372 acpi_ns_search_one_scope(u32 entry_name,
 373                          struct acpi_namespace_node *node,
 374                          acpi_object_type type,
 375                          struct acpi_namespace_node **ret_node);
 376
 377 void
 378 acpi_ns_install_node(struct acpi_walk_state *walk_state,
 379                      struct acpi_namespace_node *parent_node,
 380                      struct acpi_namespace_node *node, acpi_object_type type);
 381
 382 /*
 383  * nsutils - Utility functions
 384  */
 385 acpi_object_type acpi_ns_get_type(struct acpi_namespace_node *node);
 386
 387 u32 acpi_ns_local(acpi_object_type type);
 388
 389 void
 390 acpi_ns_print_node_pathname(struct acpi_namespace_node *node, const char *msg);
 391
 392 acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info);
 393
 394 void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info);
 395
 396 acpi_status
 397 acpi_ns_internalize_name(const char *dotted_name, char **converted_name);
 398
 399 acpi_status
 400 acpi_ns_externalize_name(u32 internal_name_length,
 401                          const char *internal_name,
 402                          u32 * converted_name_length, char **converted_name);
 403
 404 struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle);
 405
 406 void acpi_ns_terminate(void);
 407
 408 #endif                          /* __ACNAMESP_H__ */