kernel/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 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth);
 197
 198 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level);
 199
 200 void
 201 acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component);
 202
 203 void acpi_ns_print_pathname(u32 num_segments, char *pathname);
 204
 205 acpi_status
 206 acpi_ns_dump_one_object(acpi_handle obj_handle,
 207                         u32 level, void *context, void **return_value);
 208
 209 void
 210 acpi_ns_dump_objects(acpi_object_type type,
 211                      u8 display_type,
 212                      u32 max_depth,
 213                      acpi_owner_id owner_id, acpi_handle start_handle);
 214
 215 void
 216 acpi_ns_dump_object_paths(acpi_object_type type,
 217                           u8 display_type,
 218                           u32 max_depth,
 219                           acpi_owner_id owner_id, acpi_handle start_handle);
 220
 221 /*
 222  * nseval - Namespace evaluation functions
 223  */
 224 acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info);
 225
 226 void acpi_ns_exec_module_code_list(void);
 227
 228 /*
 229  * nsarguments - Argument count/type checking for predefined/reserved names
 230  */
 231 void
 232 acpi_ns_check_argument_count(char *pathname,
 233                              struct acpi_namespace_node *node,
 234                              u32 user_param_count,
 235                              const union acpi_predefined_info *info);
 236
 237 void
 238 acpi_ns_check_acpi_compliance(char *pathname,
 239                               struct acpi_namespace_node *node,
 240                               const union acpi_predefined_info *predefined);
 241
 242 void acpi_ns_check_argument_types(struct acpi_evaluate_info *info);
 243
 244 /*
 245  * nspredef - Return value checking for predefined/reserved names
 246  */
 247 acpi_status
 248 acpi_ns_check_return_value(struct acpi_namespace_node *node,
 249                            struct acpi_evaluate_info *info,
 250                            u32 user_param_count,
 251                            acpi_status return_status,
 252                            union acpi_operand_object **return_object);
 253
 254 acpi_status
 255 acpi_ns_check_object_type(struct acpi_evaluate_info *info,
 256                           union acpi_operand_object **return_object_ptr,
 257                           u32 expected_btypes, u32 package_index);
 258
 259 /*
 260  * nsprepkg - Validation of predefined name packages
 261  */
 262 acpi_status
 263 acpi_ns_check_package(struct acpi_evaluate_info *info,
 264                       union acpi_operand_object **return_object_ptr);
 265
 266 /*
 267  * nsnames - Name and Scope manipulation
 268  */
 269 u32 acpi_ns_opens_scope(acpi_object_type type);
 270
 271 char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node);
 272
 273 u32
 274 acpi_ns_build_normalized_path(struct acpi_namespace_node *node,
 275                               char *full_path, u32 path_size, u8 no_trailing);
 276
 277 char *acpi_ns_get_normalized_pathname(struct acpi_namespace_node *node,
 278                                       u8 no_trailing);
 279
 280 char *acpi_ns_name_of_current_scope(struct acpi_walk_state *walk_state);
 281
 282 acpi_status
 283 acpi_ns_handle_to_pathname(acpi_handle target_handle,
 284                            struct acpi_buffer *buffer, u8 no_trailing);
 285
 286 u8
 287 acpi_ns_pattern_match(struct acpi_namespace_node *obj_node, char *search_for);
 288
 289 acpi_status
 290 acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
 291                  const char *external_pathname,
 292                  u32 flags, struct acpi_namespace_node **out_node);
 293
 294 acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node);
 295
 296 /*
 297  * nsobject - Object management for namespace nodes
 298  */
 299 acpi_status
 300 acpi_ns_attach_object(struct acpi_namespace_node *node,
 301                       union acpi_operand_object *object, acpi_object_type type);
 302
 303 union acpi_operand_object *acpi_ns_get_attached_object(struct
 304                                                        acpi_namespace_node
 305                                                        *node);
 306
 307 union acpi_operand_object *acpi_ns_get_secondary_object(union
 308                                                         acpi_operand_object
 309                                                         *obj_desc);
 310
 311 acpi_status
 312 acpi_ns_attach_data(struct acpi_namespace_node *node,
 313                     acpi_object_handler handler, void *data);
 314
 315 acpi_status
 316 acpi_ns_detach_data(struct acpi_namespace_node *node,
 317                     acpi_object_handler handler);
 318
 319 acpi_status
 320 acpi_ns_get_attached_data(struct acpi_namespace_node *node,
 321                           acpi_object_handler handler, void **data);
 322
 323 /*
 324  * nsrepair - General return object repair for all
 325  * predefined methods/objects
 326  */
 327 acpi_status
 328 acpi_ns_simple_repair(struct acpi_evaluate_info *info,
 329                       u32 expected_btypes,
 330                       u32 package_index,
 331                       union acpi_operand_object **return_object_ptr);
 332
 333 acpi_status
 334 acpi_ns_wrap_with_package(struct acpi_evaluate_info *info,
 335                           union acpi_operand_object *original_object,
 336                           union acpi_operand_object **obj_desc_ptr);
 337
 338 acpi_status
 339 acpi_ns_repair_null_element(struct acpi_evaluate_info *info,
 340                             u32 expected_btypes,
 341                             u32 package_index,
 342                             union acpi_operand_object **return_object_ptr);
 343
 344 void
 345 acpi_ns_remove_null_elements(struct acpi_evaluate_info *info,
 346                              u8 package_type,
 347                              union acpi_operand_object *obj_desc);
 348
 349 /*
 350  * nsrepair2 - Return object repair for specific
 351  * predefined methods/objects
 352  */
 353 acpi_status
 354 acpi_ns_complex_repairs(struct acpi_evaluate_info *info,
 355                         struct acpi_namespace_node *node,
 356                         acpi_status validate_status,
 357                         union acpi_operand_object **return_object_ptr);
 358
 359 /*
 360  * nssearch - Namespace searching and entry
 361  */
 362 acpi_status
 363 acpi_ns_search_and_enter(u32 entry_name,
 364                          struct acpi_walk_state *walk_state,
 365                          struct acpi_namespace_node *node,
 366                          acpi_interpreter_mode interpreter_mode,
 367                          acpi_object_type type,
 368                          u32 flags, struct acpi_namespace_node **ret_node);
 369
 370 acpi_status
 371 acpi_ns_search_one_scope(u32 entry_name,
 372                          struct acpi_namespace_node *node,
 373                          acpi_object_type type,
 374                          struct acpi_namespace_node **ret_node);
 375
 376 void
 377 acpi_ns_install_node(struct acpi_walk_state *walk_state,
 378                      struct acpi_namespace_node *parent_node,
 379                      struct acpi_namespace_node *node, acpi_object_type type);
 380
 381 /*
 382  * nsutils - Utility functions
 383  */
 384 acpi_object_type acpi_ns_get_type(struct acpi_namespace_node *node);
 385
 386 u32 acpi_ns_local(acpi_object_type type);
 387
 388 void
 389 acpi_ns_print_node_pathname(struct acpi_namespace_node *node, const char *msg);
 390
 391 acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info);
 392
 393 void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info);
 394
 395 acpi_status
 396 acpi_ns_internalize_name(const char *dotted_name, char **converted_name);
 397
 398 acpi_status
 399 acpi_ns_externalize_name(u32 internal_name_length,
 400                          const char *internal_name,
 401                          u32 * converted_name_length, char **converted_name);
 402
 403 struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle);
 404
 405 void acpi_ns_terminate(void);
 406
 407 #endif                          /* __ACNAMESP_H__ */