include/acpi/acparser.h

   1 /******************************************************************************
   2  *
   3  * Module Name: acparser.h - AML Parser subcomponent prototypes and defines
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2007, 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 __ACPARSER_H__
  45 #define __ACPARSER_H__
  46
  47 #define OP_HAS_RETURN_VALUE             1
  48
  49 /* Variable number of arguments. This field must be 32 bits */
  50
  51 #define ACPI_VAR_ARGS                   ACPI_UINT32_MAX
  52
  53 #define ACPI_PARSE_DELETE_TREE          0x0001
  54 #define ACPI_PARSE_NO_TREE_DELETE       0x0000
  55 #define ACPI_PARSE_TREE_MASK            0x0001
  56
  57 #define ACPI_PARSE_LOAD_PASS1           0x0010
  58 #define ACPI_PARSE_LOAD_PASS2           0x0020
  59 #define ACPI_PARSE_EXECUTE              0x0030
  60 #define ACPI_PARSE_MODE_MASK            0x0030
  61
  62 #define ACPI_PARSE_DEFERRED_OP          0x0100
  63 #define ACPI_PARSE_DISASSEMBLE          0x0200
  64
  65 /******************************************************************************
  66  *
  67  * Parser interfaces
  68  *
  69  *****************************************************************************/
  70
  71 /*
  72  * psxface - Parser external interfaces
  73  */
  74 acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info);
  75
  76 /*
  77  * psargs - Parse AML opcode arguments
  78  */
  79 u8 *acpi_ps_get_next_package_end(struct acpi_parse_state *parser_state);
  80
  81 char *acpi_ps_get_next_namestring(struct acpi_parse_state *parser_state);
  82
  83 void
  84 acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state,
  85                             u32 arg_type, union acpi_parse_object *arg);
  86
  87 acpi_status
  88 acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state,
  89                           struct acpi_parse_state *parser_state,
  90                           union acpi_parse_object *arg, u8 method_call);
  91
  92 acpi_status
  93 acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
  94                      struct acpi_parse_state *parser_state,
  95                      u32 arg_type, union acpi_parse_object **return_arg);
  96
  97 /*
  98  * psfind
  99  */
 100 union acpi_parse_object *acpi_ps_find_name(union acpi_parse_object *scope,
 101                                            u32 name, u32 opcode);
 102
 103 union acpi_parse_object *acpi_ps_get_parent(union acpi_parse_object *op);
 104
 105 /*
 106  * psopcode - AML Opcode information
 107  */
 108 const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode);
 109
 110 char *acpi_ps_get_opcode_name(u16 opcode);
 111
 112 /*
 113  * psparse - top level parsing routines
 114  */
 115 acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state);
 116
 117 u32 acpi_ps_get_opcode_size(u32 opcode);
 118
 119 u16 acpi_ps_peek_opcode(struct acpi_parse_state *state);
 120
 121 acpi_status
 122 acpi_ps_complete_this_op(struct acpi_walk_state *walk_state,
 123                          union acpi_parse_object *op);
 124
 125 acpi_status
 126 acpi_ps_next_parse_state(struct acpi_walk_state *walk_state,
 127                          union acpi_parse_object *op,
 128                          acpi_status callback_status);
 129
 130 /*
 131  * psloop - main parse loop
 132  */
 133 acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state);
 134
 135 /*
 136  * psscope - Scope stack management routines
 137  */
 138 acpi_status
 139 acpi_ps_init_scope(struct acpi_parse_state *parser_state,
 140                    union acpi_parse_object *root);
 141
 142 union acpi_parse_object *acpi_ps_get_parent_scope(struct acpi_parse_state
 143                                                   *state);
 144
 145 u8 acpi_ps_has_completed_scope(struct acpi_parse_state *parser_state);
 146
 147 void
 148 acpi_ps_pop_scope(struct acpi_parse_state *parser_state,
 149                   union acpi_parse_object **op,
 150                   u32 * arg_list, u32 * arg_count);
 151
 152 acpi_status
 153 acpi_ps_push_scope(struct acpi_parse_state *parser_state,
 154                    union acpi_parse_object *op,
 155                    u32 remaining_args, u32 arg_count);
 156
 157 void acpi_ps_cleanup_scope(struct acpi_parse_state *state);
 158
 159 /*
 160  * pstree - parse tree manipulation routines
 161  */
 162 void
 163 acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg);
 164
 165 union acpi_parse_object *acpi_ps_find(union acpi_parse_object *scope,
 166                                       char *path, u16 opcode, u32 create);
 167
 168 union acpi_parse_object *acpi_ps_get_arg(union acpi_parse_object *op, u32 argn);
 169
 170 #ifdef  ACPI_FUTURE_USAGE
 171 union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin,
 172                                                 union acpi_parse_object *op);
 173 #endif                          /* ACPI_FUTURE_USAGE */
 174
 175 /*
 176  * pswalk - parse tree walk routines
 177  */
 178 acpi_status
 179 acpi_ps_walk_parsed_aml(union acpi_parse_object *start_op,
 180                         union acpi_parse_object *end_op,
 181                         union acpi_operand_object *mth_desc,
 182                         struct acpi_namespace_node *start_node,
 183                         union acpi_operand_object **params,
 184                         union acpi_operand_object **caller_return_desc,
 185                         acpi_owner_id owner_id,
 186                         acpi_parse_downwards descending_callback,
 187                         acpi_parse_upwards ascending_callback);
 188
 189 acpi_status
 190 acpi_ps_get_next_walk_op(struct acpi_walk_state *walk_state,
 191                          union acpi_parse_object *op,
 192                          acpi_parse_upwards ascending_callback);
 193
 194 acpi_status acpi_ps_delete_completed_op(struct acpi_walk_state *walk_state);
 195
 196 void acpi_ps_delete_parse_tree(union acpi_parse_object *root);
 197
 198 /*
 199  * psutils - parser utilities
 200  */
 201 union acpi_parse_object *acpi_ps_create_scope_op(void);
 202
 203 void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode);
 204
 205 union acpi_parse_object *acpi_ps_alloc_op(u16 opcode);
 206
 207 void acpi_ps_free_op(union acpi_parse_object *op);
 208
 209 u8 acpi_ps_is_leading_char(u32 c);
 210
 211 u8 acpi_ps_is_prefix_char(u32 c);
 212
 213 #ifdef  ACPI_FUTURE_USAGE
 214 u32 acpi_ps_get_name(union acpi_parse_object *op);
 215 #endif                          /* ACPI_FUTURE_USAGE */
 216
 217 void acpi_ps_set_name(union acpi_parse_object *op, u32 name);
 218
 219 /*
 220  * psdump - display parser tree
 221  */
 222 u32
 223 acpi_ps_sprint_path(char *buffer_start,
 224                     u32 buffer_size, union acpi_parse_object *op);
 225
 226 u32
 227 acpi_ps_sprint_op(char *buffer_start,
 228                   u32 buffer_size, union acpi_parse_object *op);
 229
 230 void acpi_ps_show(union acpi_parse_object *op);
 231
 232 #endif                          /* __ACPARSER_H__ */