drivers/acpi/acpica/acnamesp.h

   1 /******************************************************************************
   2  *
   3  * Name: acnamesp.h - Namespace subcomponent prototypes and defines
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2012, 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
  70 /* Flags for acpi_ns_walk_namespace */
  71
  72 #define ACPI_NS_WALK_NO_UNLOCK      0
  73 #define ACPI_NS_WALK_UNLOCK         0x01
  74 #define ACPI_NS_WALK_TEMP_NODES     0x02
  75
  76 /* Object is not a package element */
  77
  78 #define ACPI_NOT_PACKAGE_ELEMENT    ACPI_UINT32_MAX
  79
  80 /* Always emit warning message, not dependent on node flags */
  81
  82 #define ACPI_WARN_ALWAYS            0
  83
  84 /*
  85  * nsinit - Namespace initialization
  86  */
  87 acpi_status acpi_ns_initialize_objects(void);
  88
  89 acpi_status acpi_ns_initialize_devices(void);
  90
  91 /*
  92  * nsload -  Namespace loading
  93  */
  94 acpi_status acpi_ns_load_namespace(void);
  95
  96 acpi_status
  97 acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node);
  98
  99 /*
 100  * nswalk - walk the namespace
 101  */
 102 acpi_status
 103 acpi_ns_walk_namespace(acpi_object_type type,
 104                        acpi_handle start_object,
 105                        u32 max_depth,
 106                        u32 flags,
 107                        acpi_walk_callback pre_order_visit,
 108                        acpi_walk_callback post_order_visit,
 109                        void *context, void **return_value);
 110
 111 struct acpi_namespace_node *acpi_ns_get_next_node(struct acpi_namespace_node
 112                                                   *parent,
 113                                                   struct acpi_namespace_node
 114                                                   *child);
 115
 116 struct acpi_namespace_node *acpi_ns_get_next_node_typed(acpi_object_type type,
 117                                                         struct
 118                                                         acpi_namespace_node
 119                                                         *parent,
 120                                                         struct
 121                                                         acpi_namespace_node
 122                                                         *child);
 123
 124 /*
 125  * nsparse - table parsing
 126  */
 127 acpi_status
 128 acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node);
 129
 130 acpi_status
 131 acpi_ns_one_complete_parse(u32 pass_number,
 132                            u32 table_index,
 133                            struct acpi_namespace_node *start_node);
 134
 135 /*
 136  * nsaccess - Top-level namespace access
 137  */
 138 acpi_status acpi_ns_root_initialize(void);
 139
 140 acpi_status
 141 acpi_ns_lookup(union acpi_generic_state *scope_info,
 142                char *name,
 143                acpi_object_type type,
 144                acpi_interpreter_mode interpreter_mode,
 145                u32 flags,
 146                struct acpi_walk_state *walk_state,
 147                struct acpi_namespace_node **ret_node);
 148
 149 /*
 150  * nsalloc - Named object allocation/deallocation
 151  */
 152 struct acpi_namespace_node *acpi_ns_create_node(u32 name);
 153
 154 void acpi_ns_delete_node(struct acpi_namespace_node *node);
 155
 156 void acpi_ns_remove_node(struct acpi_namespace_node *node);
 157
 158 void
 159 acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_handle);
 160
 161 void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id);
 162
 163 void acpi_ns_detach_object(struct acpi_namespace_node *node);
 164
 165 void acpi_ns_delete_children(struct acpi_namespace_node *parent);
 166
 167 int acpi_ns_compare_names(char *name1, char *name2);
 168
 169 /*
 170  * nsdump - Namespace dump/print utilities
 171  */
 172 #ifdef  ACPI_FUTURE_USAGE
 173 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth);
 174 #endif                          /* ACPI_FUTURE_USAGE */
 175
 176 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level);
 177
 178 void
 179 acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component);
 180
 181 void acpi_ns_print_pathname(u32 num_segments, char *pathname);
 182
 183 acpi_status
 184 acpi_ns_dump_one_object(acpi_handle obj_handle,
 185                         u32 level, void *context, void **return_value);
 186
 187 #ifdef  ACPI_FUTURE_USAGE
 188 void
 189 acpi_ns_dump_objects(acpi_object_type type,
 190                      u8 display_type,
 191                      u32 max_depth,
 192                      acpi_owner_id owner_id, acpi_handle start_handle);
 193 #endif                          /* ACPI_FUTURE_USAGE */
 194
 195 /*
 196  * nseval - Namespace evaluation functions
 197  */
 198 acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info);
 199
 200 void acpi_ns_exec_module_code_list(void);
 201
 202 /*
 203  * nspredef - Support for predefined/reserved names
 204  */
 205 acpi_status
 206 acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
 207                                u32 user_param_count,
 208                                acpi_status return_status,
 209                                union acpi_operand_object **return_object);
 210
 211 const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct
 212                                                                     acpi_namespace_node
 213                                                                     *node);
 214
 215 void
 216 acpi_ns_check_parameter_count(char *pathname,
 217                               struct acpi_namespace_node *node,
 218                               u32 user_param_count,
 219                               const union acpi_predefined_info *info);
 220
 221 /*
 222  * nsnames - Name and Scope manipulation
 223  */
 224 u32 acpi_ns_opens_scope(acpi_object_type type);
 225
 226 acpi_status
 227 acpi_ns_build_external_path(struct acpi_namespace_node *node,
 228                             acpi_size size, char *name_buffer);
 229
 230 char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node);
 231
 232 char *acpi_ns_name_of_current_scope(struct acpi_walk_state *walk_state);
 233
 234 acpi_status
 235 acpi_ns_handle_to_pathname(acpi_handle target_handle,
 236                            struct acpi_buffer *buffer);
 237
 238 u8
 239 acpi_ns_pattern_match(struct acpi_namespace_node *obj_node, char *search_for);
 240
 241 acpi_status
 242 acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
 243                  const char *external_pathname,
 244                  u32 flags, struct acpi_namespace_node **out_node);
 245
 246 acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node);
 247
 248 /*
 249  * nsobject - Object management for namespace nodes
 250  */
 251 acpi_status
 252 acpi_ns_attach_object(struct acpi_namespace_node *node,
 253                       union acpi_operand_object *object, acpi_object_type type);
 254
 255 union acpi_operand_object *acpi_ns_get_attached_object(struct
 256                                                        acpi_namespace_node
 257                                                        *node);
 258
 259 union acpi_operand_object *acpi_ns_get_secondary_object(union
 260                                                         acpi_operand_object
 261                                                         *obj_desc);
 262
 263 acpi_status
 264 acpi_ns_attach_data(struct acpi_namespace_node *node,
 265                     acpi_object_handler handler, void *data);
 266
 267 acpi_status
 268 acpi_ns_detach_data(struct acpi_namespace_node *node,
 269                     acpi_object_handler handler);
 270
 271 acpi_status
 272 acpi_ns_get_attached_data(struct acpi_namespace_node *node,
 273                           acpi_object_handler handler, void **data);
 274
 275 /*
 276  * nsrepair - General return object repair for all
 277  * predefined methods/objects
 278  */
 279 acpi_status
 280 acpi_ns_repair_object(struct acpi_predefined_data *data,
 281                       u32 expected_btypes,
 282                       u32 package_index,
 283                       union acpi_operand_object **return_object_ptr);
 284
 285 acpi_status
 286 acpi_ns_wrap_with_package(struct acpi_predefined_data *data,
 287                           union acpi_operand_object *original_object,
 288                           union acpi_operand_object **obj_desc_ptr);
 289
 290 acpi_status
 291 acpi_ns_repair_null_element(struct acpi_predefined_data *data,
 292                             u32 expected_btypes,
 293                             u32 package_index,
 294                             union acpi_operand_object **return_object_ptr);
 295
 296 void
 297 acpi_ns_remove_null_elements(struct acpi_predefined_data *data,
 298                              u8 package_type,
 299                              union acpi_operand_object *obj_desc);
 300
 301 /*
 302  * nsrepair2 - Return object repair for specific
 303  * predefined methods/objects
 304  */
 305 acpi_status
 306 acpi_ns_complex_repairs(struct acpi_predefined_data *data,
 307                         struct acpi_namespace_node *node,
 308                         acpi_status validate_status,
 309                         union acpi_operand_object **return_object_ptr);
 310
 311 /*
 312  * nssearch - Namespace searching and entry
 313  */
 314 acpi_status
 315 acpi_ns_search_and_enter(u32 entry_name,
 316                          struct acpi_walk_state *walk_state,
 317                          struct acpi_namespace_node *node,
 318                          acpi_interpreter_mode interpreter_mode,
 319                          acpi_object_type type,
 320                          u32 flags, struct acpi_namespace_node **ret_node);
 321
 322 acpi_status
 323 acpi_ns_search_one_scope(u32 entry_name,
 324                          struct acpi_namespace_node *node,
 325                          acpi_object_type type,
 326                          struct acpi_namespace_node **ret_node);
 327
 328 void
 329 acpi_ns_install_node(struct acpi_walk_state *walk_state,
 330                      struct acpi_namespace_node *parent_node,
 331                      struct acpi_namespace_node *node, acpi_object_type type);
 332
 333 /*
 334  * nsutils - Utility functions
 335  */
 336 u8 acpi_ns_valid_root_prefix(char prefix);
 337
 338 acpi_object_type acpi_ns_get_type(struct acpi_namespace_node *node);
 339
 340 u32 acpi_ns_local(acpi_object_type type);
 341
 342 void
 343 acpi_ns_print_node_pathname(struct acpi_namespace_node *node, const char *msg);
 344
 345 acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info);
 346
 347 void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info);
 348
 349 acpi_status
 350 acpi_ns_internalize_name(const char *dotted_name, char **converted_name);
 351
 352 acpi_status
 353 acpi_ns_externalize_name(u32 internal_name_length,
 354                          const char *internal_name,
 355                          u32 * converted_name_length, char **converted_name);
 356
 357 struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle);
 358
 359 void acpi_ns_terminate(void);
 360
 361 #endif                          /* __ACNAMESP_H__ */