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   1 /******************************************************************************
   2  *
   3  * Module Name: acparser.h - AML Parser subcomponent prototypes and defines
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2005, 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
  45 #ifndef __ACPARSER_H__
  46 #define __ACPARSER_H__
  47
  48
  49 #define OP_HAS_RETURN_VALUE             1
  50
  51 /* variable # arguments */
  52
  53 #define ACPI_VAR_ARGS                   ACPI_UINT32_MAX
  54
  55
  56 #define ACPI_PARSE_DELETE_TREE          0x0001
  57 #define ACPI_PARSE_NO_TREE_DELETE       0x0000
  58 #define ACPI_PARSE_TREE_MASK            0x0001
  59
  60 #define ACPI_PARSE_LOAD_PASS1           0x0010
  61 #define ACPI_PARSE_LOAD_PASS2           0x0020
  62 #define ACPI_PARSE_EXECUTE              0x0030
  63 #define ACPI_PARSE_MODE_MASK            0x0030
  64
  65 #define ACPI_PARSE_DEFERRED_OP          0x0100
  66
  67 /* Parser external interfaces */
  68
  69 acpi_status
  70 acpi_psx_load_table (
  71         u8                              *pcode_addr,
  72         u32                             pcode_length);
  73
  74 acpi_status
  75 acpi_psx_execute (
  76         struct acpi_parameter_info      *info);
  77
  78
  79 /******************************************************************************
  80  *
  81  * Parser interfaces
  82  *
  83  *****************************************************************************/
  84
  85
  86 /* psargs - Parse AML opcode arguments */
  87
  88 u8 *
  89 acpi_ps_get_next_package_end (
  90         struct acpi_parse_state         *parser_state);
  91
  92 u32
  93 acpi_ps_get_next_package_length (
  94         struct acpi_parse_state         *parser_state);
  95
  96 char *
  97 acpi_ps_get_next_namestring (
  98         struct acpi_parse_state         *parser_state);
  99
 100 void
 101 acpi_ps_get_next_simple_arg (
 102         struct acpi_parse_state         *parser_state,
 103         u32                             arg_type,
 104         union acpi_parse_object         *arg);
 105
 106 acpi_status
 107 acpi_ps_get_next_namepath (
 108         struct acpi_walk_state          *walk_state,
 109         struct acpi_parse_state         *parser_state,
 110         union acpi_parse_object         *arg,
 111         u8                              method_call);
 112
 113 union acpi_parse_object *
 114 acpi_ps_get_next_field (
 115         struct acpi_parse_state         *parser_state);
 116
 117 acpi_status
 118 acpi_ps_get_next_arg (
 119         struct acpi_walk_state          *walk_state,
 120         struct acpi_parse_state         *parser_state,
 121         u32                             arg_type,
 122         union acpi_parse_object         **return_arg);
 123
 124
 125 /* psfind */
 126
 127 union acpi_parse_object *
 128 acpi_ps_find_name (
 129         union acpi_parse_object         *scope,
 130         u32                             name,
 131         u32                             opcode);
 132
 133 union acpi_parse_object*
 134 acpi_ps_get_parent (
 135         union acpi_parse_object         *op);
 136
 137
 138 /* psopcode - AML Opcode information */
 139
 140 const struct acpi_opcode_info *
 141 acpi_ps_get_opcode_info (
 142         u16                             opcode);
 143
 144 char *
 145 acpi_ps_get_opcode_name (
 146         u16                             opcode);
 147
 148
 149 /* psparse - top level parsing routines */
 150
 151 u32
 152 acpi_ps_get_opcode_size (
 153         u32                             opcode);
 154
 155 void
 156 acpi_ps_complete_this_op (
 157         struct acpi_walk_state          *walk_state,
 158         union acpi_parse_object         *op);
 159
 160 acpi_status
 161 acpi_ps_next_parse_state (
 162         struct acpi_walk_state          *walk_state,
 163         union acpi_parse_object         *op,
 164         acpi_status                     callback_status);
 165
 166 acpi_status
 167 acpi_ps_find_object (
 168         struct acpi_walk_state          *walk_state,
 169         union acpi_parse_object         **out_op);
 170
 171 void
 172 acpi_ps_delete_parse_tree (
 173         union acpi_parse_object         *root);
 174
 175 acpi_status
 176 acpi_ps_parse_loop (
 177         struct acpi_walk_state          *walk_state);
 178
 179 acpi_status
 180 acpi_ps_parse_aml (
 181         struct acpi_walk_state          *walk_state);
 182
 183 acpi_status
 184 acpi_ps_parse_table (
 185         u8                              *aml,
 186         u32                             aml_size,
 187         acpi_parse_downwards            descending_callback,
 188         acpi_parse_upwards              ascending_callback,
 189         union acpi_parse_object         **root_object);
 190
 191 u16
 192 acpi_ps_peek_opcode (
 193         struct acpi_parse_state         *state);
 194
 195
 196 /* psscope - Scope stack management routines */
 197
 198
 199 acpi_status
 200 acpi_ps_init_scope (
 201         struct acpi_parse_state         *parser_state,
 202         union acpi_parse_object         *root);
 203
 204 union acpi_parse_object *
 205 acpi_ps_get_parent_scope (
 206         struct acpi_parse_state         *state);
 207
 208 u8
 209 acpi_ps_has_completed_scope (
 210         struct acpi_parse_state         *parser_state);
 211
 212 void
 213 acpi_ps_pop_scope (
 214         struct acpi_parse_state         *parser_state,
 215         union acpi_parse_object         **op,
 216         u32                             *arg_list,
 217         u32                             *arg_count);
 218
 219 acpi_status
 220 acpi_ps_push_scope (
 221         struct acpi_parse_state         *parser_state,
 222         union acpi_parse_object         *op,
 223         u32                             remaining_args,
 224         u32                             arg_count);
 225
 226 void
 227 acpi_ps_cleanup_scope (
 228         struct acpi_parse_state         *state);
 229
 230
 231 /* pstree - parse tree manipulation routines */
 232
 233 void
 234 acpi_ps_append_arg(
 235         union acpi_parse_object         *op,
 236         union acpi_parse_object         *arg);
 237
 238 union acpi_parse_object*
 239 acpi_ps_find (
 240         union acpi_parse_object         *scope,
 241         char                            *path,
 242         u16                             opcode,
 243         u32                             create);
 244
 245 union acpi_parse_object *
 246 acpi_ps_get_arg(
 247         union acpi_parse_object         *op,
 248         u32                              argn);
 249
 250 #ifdef ACPI_FUTURE_USAGE
 251 union acpi_parse_object *
 252 acpi_ps_get_child (
 253         union acpi_parse_object         *op);
 254
 255 union acpi_parse_object *
 256 acpi_ps_get_depth_next (
 257         union acpi_parse_object         *origin,
 258         union acpi_parse_object         *op);
 259 #endif  /*  ACPI_FUTURE_USAGE  */
 260
 261
 262 /* pswalk - parse tree walk routines */
 263
 264 acpi_status
 265 acpi_ps_walk_parsed_aml (
 266         union acpi_parse_object         *start_op,
 267         union acpi_parse_object         *end_op,
 268         union acpi_operand_object       *mth_desc,
 269         struct acpi_namespace_node      *start_node,
 270         union acpi_operand_object       **params,
 271         union acpi_operand_object       **caller_return_desc,
 272         acpi_owner_id                   owner_id,
 273         acpi_parse_downwards            descending_callback,
 274         acpi_parse_upwards              ascending_callback);
 275
 276 acpi_status
 277 acpi_ps_get_next_walk_op (
 278         struct acpi_walk_state          *walk_state,
 279         union acpi_parse_object         *op,
 280         acpi_parse_upwards              ascending_callback);
 281
 282 acpi_status
 283 acpi_ps_delete_completed_op (
 284         struct acpi_walk_state          *walk_state);
 285
 286
 287 /* psutils - parser utilities */
 288
 289 union acpi_parse_object *
 290 acpi_ps_create_scope_op (
 291         void);
 292
 293 void
 294 acpi_ps_init_op (
 295         union acpi_parse_object         *op,
 296         u16                             opcode);
 297
 298 union acpi_parse_object *
 299 acpi_ps_alloc_op (
 300         u16                             opcode);
 301
 302 void
 303 acpi_ps_free_op (
 304         union acpi_parse_object         *op);
 305
 306 #ifdef ACPI_ENABLE_OBJECT_CACHE
 307 void
 308 acpi_ps_delete_parse_cache (
 309         void);
 310 #endif
 311
 312 u8
 313 acpi_ps_is_leading_char (
 314         u32                             c);
 315
 316 u8
 317 acpi_ps_is_prefix_char (
 318         u32                             c);
 319
 320 #ifdef ACPI_FUTURE_USAGE
 321 u32
 322 acpi_ps_get_name(
 323         union acpi_parse_object         *op);
 324 #endif
 325
 326 void
 327 acpi_ps_set_name(
 328         union acpi_parse_object         *op,
 329         u32                             name);
 330
 331
 332 /* psdump - display parser tree */
 333
 334 u32
 335 acpi_ps_sprint_path (
 336         char                            *buffer_start,
 337         u32                             buffer_size,
 338         union acpi_parse_object         *op);
 339
 340 u32
 341 acpi_ps_sprint_op (
 342         char                            *buffer_start,
 343         u32                             buffer_size,
 344         union acpi_parse_object         *op);
 345
 346 void
 347 acpi_ps_show (
 348         union acpi_parse_object         *op);
 349
 350
 351 #endif /* __ACPARSER_H__ */