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   1 /******************************************************************************
   2  *
   3  * Name: acstruct.h - Internal structs
   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 #ifndef __ACSTRUCT_H__
  45 #define __ACSTRUCT_H__
  46
  47
  48 /*****************************************************************************
  49  *
  50  * Tree walking typedefs and structs
  51  *
  52  ****************************************************************************/
  53
  54
  55 /*
  56  * Walk state - current state of a parse tree walk.  Used for both a leisurely stroll through
  57  * the tree (for whatever reason), and for control method execution.
  58  */
  59 #define ACPI_NEXT_OP_DOWNWARD       1
  60 #define ACPI_NEXT_OP_UPWARD         2
  61
  62 #define ACPI_WALK_NON_METHOD        0
  63 #define ACPI_WALK_METHOD            1
  64 #define ACPI_WALK_METHOD_RESTART    2
  65 #define ACPI_WALK_CONST_REQUIRED    3
  66 #define ACPI_WALK_CONST_OPTIONAL    4
  67
  68 struct acpi_walk_state
  69 {
  70         u8                                  data_type;                          /* To differentiate various internal objs MUST BE FIRST!*/\
  71         u8                                  walk_type;
  72         acpi_owner_id                       owner_id;                           /* Owner of objects created during the walk */
  73         u8                                  last_predicate;                     /* Result of last predicate */
  74         u8                                  current_result;                     /* */
  75         u8                                  next_op_info;                       /* Info about next_op */
  76         u8                                  num_operands;                       /* Stack pointer for Operands[] array */
  77         u8                                  return_used;
  78         u16                                 opcode;                             /* Current AML opcode */
  79         u8                                  scope_depth;
  80         u8                                  pass_number;                        /* Parse pass during table load */
  81         u32                                 arg_count;                          /* push for fixed or var args */
  82         u32                                 aml_offset;
  83         u32                                 arg_types;
  84         u32                                 method_breakpoint;                  /* For single stepping */
  85         u32                                 user_breakpoint;                    /* User AML breakpoint */
  86         u32                                 parse_flags;
  87         u32                                 prev_arg_types;
  88
  89         u8                                  *aml_last_while;
  90         struct acpi_namespace_node          arguments[ACPI_METHOD_NUM_ARGS];    /* Control method arguments */
  91         union acpi_operand_object           **caller_return_desc;
  92         union acpi_generic_state            *control_state;                     /* List of control states (nested IFs) */
  93         struct acpi_namespace_node          *deferred_node;                     /* Used when executing deferred opcodes */
  94         struct acpi_gpe_event_info          *gpe_event_info;                    /* Info for GPE (_Lxx/_Exx methods only */
  95         union acpi_operand_object           *implicit_return_obj;
  96         struct acpi_namespace_node          local_variables[ACPI_METHOD_NUM_LOCALS];    /* Control method locals */
  97         struct acpi_namespace_node          *method_call_node;                  /* Called method Node*/
  98         union acpi_parse_object             *method_call_op;                    /* method_call Op if running a method */
  99         union acpi_operand_object           *method_desc;                       /* Method descriptor if running a method */
 100         struct acpi_namespace_node          *method_node;                       /* Method node if running a method. */
 101         union acpi_parse_object             *op;                                /* Current parser op */
 102         union acpi_operand_object           *operands[ACPI_OBJ_NUM_OPERANDS+1]; /* Operands passed to the interpreter (+1 for NULL terminator) */
 103         const struct acpi_opcode_info       *op_info;                           /* Info on current opcode */
 104         union acpi_parse_object             *origin;                            /* Start of walk [Obsolete] */
 105         union acpi_operand_object           **params;
 106         struct acpi_parse_state             parser_state;                       /* Current state of parser */
 107         union acpi_operand_object           *result_obj;
 108         union acpi_generic_state            *results;                           /* Stack of accumulated results */
 109         union acpi_operand_object           *return_desc;                       /* Return object, if any */
 110         union acpi_generic_state            *scope_info;                        /* Stack of nested scopes */
 111
 112         union acpi_parse_object             *prev_op;                           /* Last op that was processed */
 113         union acpi_parse_object             *next_op;                           /* next op to be processed */
 114         acpi_parse_downwards                descending_callback;
 115         acpi_parse_upwards                  ascending_callback;
 116         struct acpi_thread_state            *thread;
 117         struct acpi_walk_state              *next;                              /* Next walk_state in list */
 118 };
 119
 120
 121 /* Info used by acpi_ps_init_objects */
 122
 123 struct acpi_init_walk_info
 124 {
 125         u16                             method_count;
 126         u16                             device_count;
 127         u16                             op_region_count;
 128         u16                             field_count;
 129         u16                             buffer_count;
 130         u16                             package_count;
 131         u16                             op_region_init;
 132         u16                             field_init;
 133         u16                             buffer_init;
 134         u16                             package_init;
 135         u16                             object_count;
 136         struct acpi_table_desc          *table_desc;
 137 };
 138
 139
 140 /* Info used by acpi_ns_initialize_devices */
 141
 142 struct acpi_device_walk_info
 143 {
 144         u16                             device_count;
 145         u16                             num_STA;
 146         u16                             num_INI;
 147         struct acpi_table_desc          *table_desc;
 148 };
 149
 150
 151 /* TBD: [Restructure] Merge with struct above */
 152
 153 struct acpi_walk_info
 154 {
 155         u32                             debug_level;
 156         acpi_owner_id                   owner_id;
 157         u8                              display_type;
 158 };
 159
 160 /* Display Types */
 161
 162 #define ACPI_DISPLAY_SUMMARY    (u8) 0
 163 #define ACPI_DISPLAY_OBJECTS    (u8) 1
 164 #define ACPI_DISPLAY_MASK       (u8) 1
 165
 166 #define ACPI_DISPLAY_SHORT      (u8) 2
 167
 168 struct acpi_get_devices_info
 169 {
 170         acpi_walk_callback              user_function;
 171         void                            *context;
 172         char                            *hid;
 173 };
 174
 175
 176 union acpi_aml_operands
 177 {
 178         union acpi_operand_object           *operands[7];
 179
 180         struct
 181         {
 182                 struct acpi_object_integer      *type;
 183                 struct acpi_object_integer      *code;
 184                 struct acpi_object_integer      *argument;
 185
 186         } fatal;
 187
 188         struct
 189         {
 190                 union acpi_operand_object       *source;
 191                 struct acpi_object_integer      *index;
 192                 union acpi_operand_object       *target;
 193
 194         } index;
 195
 196         struct
 197         {
 198                 union acpi_operand_object       *source;
 199                 struct acpi_object_integer      *index;
 200                 struct acpi_object_integer      *length;
 201                 union acpi_operand_object       *target;
 202
 203         } mid;
 204 };
 205
 206
 207 /* Internal method parameter list */
 208
 209 struct acpi_parameter_info
 210 {
 211         struct acpi_namespace_node      *node;
 212         union acpi_operand_object       **parameters;
 213         union acpi_operand_object       *return_object;
 214         u8                              parameter_type;
 215         u8                              return_object_type;
 216 };
 217
 218 /* Types for parameter_type above */
 219
 220 #define ACPI_PARAM_ARGS                 0
 221 #define ACPI_PARAM_GPE                  1
 222
 223
 224 #endif