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   1 /******************************************************************************
   2  *
   3  * Name: acnamesp.h - Namespace subcomponent prototypes and defines
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2006, R. Byron Moore
   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
  69 #define ACPI_NS_WALK_UNLOCK         TRUE
  70 #define ACPI_NS_WALK_NO_UNLOCK      FALSE
  71
  72 /*
  73  * nsinit - Namespace initialization
  74  */
  75 acpi_status acpi_ns_initialize_objects(void);
  76
  77 acpi_status acpi_ns_initialize_devices(void);
  78
  79 /*
  80  * nsload -  Namespace loading
  81  */
  82 acpi_status acpi_ns_load_namespace(void);
  83
  84 acpi_status
  85 acpi_ns_load_table(struct acpi_table_desc *table_desc,
  86                    struct acpi_namespace_node *node);
  87
  88 /*
  89  * nswalk - walk the namespace
  90  */
  91 acpi_status
  92 acpi_ns_walk_namespace(acpi_object_type type,
  93                        acpi_handle start_object,
  94                        u32 max_depth,
  95                        u8 unlock_before_callback,
  96                        acpi_walk_callback user_function,
  97                        void *context, void **return_value);
  98
  99 struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type,
 100                                                   struct acpi_namespace_node
 101                                                   *parent,
 102                                                   struct acpi_namespace_node
 103                                                   *child);
 104
 105 /*
 106  * nsparse - table parsing
 107  */
 108 acpi_status
 109 acpi_ns_parse_table(struct acpi_table_desc *table_desc,
 110                     struct acpi_namespace_node *scope);
 111
 112 acpi_status
 113 acpi_ns_one_complete_parse(u8 pass_number, struct acpi_table_desc *table_desc);
 114
 115 /*
 116  * nsaccess - Top-level namespace access
 117  */
 118 acpi_status acpi_ns_root_initialize(void);
 119
 120 acpi_status
 121 acpi_ns_lookup(union acpi_generic_state *scope_info,
 122                char *name,
 123                acpi_object_type type,
 124                acpi_interpreter_mode interpreter_mode,
 125                u32 flags,
 126                struct acpi_walk_state *walk_state,
 127                struct acpi_namespace_node **ret_node);
 128
 129 /*
 130  * nsalloc - Named object allocation/deallocation
 131  */
 132 struct acpi_namespace_node *acpi_ns_create_node(u32 name);
 133
 134 void acpi_ns_delete_node(struct acpi_namespace_node *node);
 135
 136 void
 137 acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_handle);
 138
 139 void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id);
 140
 141 void acpi_ns_detach_object(struct acpi_namespace_node *node);
 142
 143 void acpi_ns_delete_children(struct acpi_namespace_node *parent);
 144
 145 int acpi_ns_compare_names(char *name1, char *name2);
 146
 147 /*
 148  * nsdump - Namespace dump/print utilities
 149  */
 150 #ifdef  ACPI_FUTURE_USAGE
 151 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth);
 152 #endif                          /* ACPI_FUTURE_USAGE */
 153
 154 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level);
 155
 156 void
 157 acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component);
 158
 159 void acpi_ns_print_pathname(u32 num_segments, char *pathname);
 160
 161 acpi_status
 162 acpi_ns_dump_one_object(acpi_handle obj_handle,
 163                         u32 level, void *context, void **return_value);
 164
 165 #ifdef  ACPI_FUTURE_USAGE
 166 void
 167 acpi_ns_dump_objects(acpi_object_type type,
 168                      u8 display_type,
 169                      u32 max_depth,
 170                      acpi_owner_id owner_id, acpi_handle start_handle);
 171 #endif                          /* ACPI_FUTURE_USAGE */
 172
 173 /*
 174  * nseval - Namespace evaluation functions
 175  */
 176 acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info);
 177
 178 /*
 179  * nsnames - Name and Scope manipulation
 180  */
 181 u32 acpi_ns_opens_scope(acpi_object_type type);
 182
 183 void
 184 acpi_ns_build_external_path(struct acpi_namespace_node *node,
 185                             acpi_size size, char *name_buffer);
 186
 187 char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node);
 188
 189 char *acpi_ns_name_of_current_scope(struct acpi_walk_state *walk_state);
 190
 191 acpi_status
 192 acpi_ns_handle_to_pathname(acpi_handle target_handle,
 193                            struct acpi_buffer *buffer);
 194
 195 u8
 196 acpi_ns_pattern_match(struct acpi_namespace_node *obj_node, char *search_for);
 197
 198 acpi_status
 199 acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
 200                  char *external_pathname,
 201                  u32 flags, struct acpi_namespace_node **out_node);
 202
 203 acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node);
 204
 205 /*
 206  * nsobject - Object management for namespace nodes
 207  */
 208 acpi_status
 209 acpi_ns_attach_object(struct acpi_namespace_node *node,
 210                       union acpi_operand_object *object, acpi_object_type type);
 211
 212 union acpi_operand_object *acpi_ns_get_attached_object(struct
 213                                                        acpi_namespace_node
 214                                                        *node);
 215
 216 union acpi_operand_object *acpi_ns_get_secondary_object(union
 217                                                         acpi_operand_object
 218                                                         *obj_desc);
 219
 220 acpi_status
 221 acpi_ns_attach_data(struct acpi_namespace_node *node,
 222                     acpi_object_handler handler, void *data);
 223
 224 acpi_status
 225 acpi_ns_detach_data(struct acpi_namespace_node *node,
 226                     acpi_object_handler handler);
 227
 228 acpi_status
 229 acpi_ns_get_attached_data(struct acpi_namespace_node *node,
 230                           acpi_object_handler handler, void **data);
 231
 232 /*
 233  * nssearch - Namespace searching and entry
 234  */
 235 acpi_status
 236 acpi_ns_search_and_enter(u32 entry_name,
 237                          struct acpi_walk_state *walk_state,
 238                          struct acpi_namespace_node *node,
 239                          acpi_interpreter_mode interpreter_mode,
 240                          acpi_object_type type,
 241                          u32 flags, struct acpi_namespace_node **ret_node);
 242
 243 acpi_status
 244 acpi_ns_search_one_scope(u32 entry_name,
 245                          struct acpi_namespace_node *node,
 246                          acpi_object_type type,
 247                          struct acpi_namespace_node **ret_node);
 248
 249 void
 250 acpi_ns_install_node(struct acpi_walk_state *walk_state,
 251                      struct acpi_namespace_node *parent_node,
 252                      struct acpi_namespace_node *node, acpi_object_type type);
 253
 254 /*
 255  * nsutils - Utility functions
 256  */
 257 u8 acpi_ns_valid_root_prefix(char prefix);
 258
 259 acpi_object_type acpi_ns_get_type(struct acpi_namespace_node *node);
 260
 261 u32 acpi_ns_local(acpi_object_type type);
 262
 263 void
 264 acpi_ns_report_error(char *module_name,
 265                      u32 line_number,
 266                      char *internal_name, acpi_status lookup_status);
 267
 268 void
 269 acpi_ns_report_method_error(char *module_name,
 270                             u32 line_number,
 271                             char *message,
 272                             struct acpi_namespace_node *node,
 273                             char *path, acpi_status lookup_status);
 274
 275 void acpi_ns_print_node_pathname(struct acpi_namespace_node *node, char *msg);
 276
 277 acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info);
 278
 279 void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info);
 280
 281 acpi_status acpi_ns_internalize_name(char *dotted_name, char **converted_name);
 282
 283 acpi_status
 284 acpi_ns_externalize_name(u32 internal_name_length,
 285                          char *internal_name,
 286                          u32 * converted_name_length, char **converted_name);
 287
 288 struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle);
 289
 290 acpi_handle acpi_ns_convert_entry_to_handle(struct acpi_namespace_node *node);
 291
 292 void acpi_ns_terminate(void);
 293
 294 struct acpi_namespace_node *acpi_ns_get_parent_node(struct acpi_namespace_node
 295                                                     *node);
 296
 297 struct acpi_namespace_node *acpi_ns_get_next_valid_node(struct
 298                                                         acpi_namespace_node
 299                                                         *node);
 300
 301 #endif                          /* __ACNAMESP_H__ */