drivers/bus/acpi/include/acstruct.h

   1 /******************************************************************************
   2  *
   3  * Name: acstruct.h - Internal structs
   4  *       $Revision$
   5  *
   6  *****************************************************************************/
   7
   8 /*
   9  *  Copyright (C) 2000, 2001 R. Byron Moore
  10  *
  11  *  This program is free software; you can redistribute it and/or modify
  12  *  it under the terms of the GNU General Public License as published by
  13  *  the Free Software Foundation; either version 2 of the License, or
  14  *  (at your option) any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful,
  17  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *  GNU General Public License for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License
  22  *  along with this program; if not, write to the Free Software
  23  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  24  */
  25
  26 #ifndef __ACSTRUCT_H__
  27 #define __ACSTRUCT_H__
  28
  29
  30 /*****************************************************************************
  31  *
  32  * Tree walking typedefs and structs
  33  *
  34  ****************************************************************************/
  35
  36
  37 /*
  38  * Walk state - current state of a parse tree walk.  Used for both a leisurely stroll through
  39  * the tree (for whatever reason), and for control method execution.
  40  */
  41
  42 #define NEXT_OP_DOWNWARD    1
  43 #define NEXT_OP_UPWARD      2
  44
  45 #define WALK_NON_METHOD     0
  46 #define WALK_METHOD         1
  47 #define WALK_METHOD_RESTART 2
  48
  49 typedef struct acpi_walk_state
  50 {
  51         u8                      data_type;                          /* To differentiate various internal objs */\
  52         ACPI_OWNER_ID           owner_id;                           /* Owner of objects created during the walk */
  53         u8                      last_predicate;                     /* Result of last predicate */
  54         u8                      next_op_info;                       /* Info about Next_op */
  55         u8                      num_operands;                       /* Stack pointer for Operands[] array */
  56         u8                      current_result;                     /* */
  57
  58         struct acpi_walk_state  *next;                              /* Next Walk_state in list */
  59         ACPI_PARSE_OBJECT       *origin;                            /* Start of walk [Obsolete] */
  60
  61 /* TBD: Obsolete with removal of WALK procedure ? */
  62         ACPI_PARSE_OBJECT       *prev_op;                           /* Last op that was processed */
  63         ACPI_PARSE_OBJECT       *next_op;                           /* next op to be processed */
  64
  65
  66         ACPI_GENERIC_STATE      *results;                           /* Stack of accumulated results */
  67         ACPI_GENERIC_STATE      *control_state;                     /* List of control states (nested IFs) */
  68         ACPI_GENERIC_STATE      *scope_info;                        /* Stack of nested scopes */
  69         ACPI_PARSE_STATE        *parser_state;                      /* Current state of parser */
  70         u8                      *aml_last_while;
  71         ACPI_OPCODE_INFO        *op_info;                           /* Info on current opcode */
  72         ACPI_PARSE_DOWNWARDS    descending_callback;
  73         ACPI_PARSE_UPWARDS      ascending_callback;
  74
  75         union acpi_operand_obj  *return_desc;                       /* Return object, if any */
  76         union acpi_operand_obj  *method_desc;                       /* Method descriptor if running a method */
  77         struct acpi_node        *method_node;                       /* Method Node if running a method */
  78         ACPI_PARSE_OBJECT       *method_call_op;                    /* Method_call Op if running a method */
  79         struct acpi_node        *method_call_node;                  /* Called method Node*/
  80         union acpi_operand_obj  *operands[OBJ_NUM_OPERANDS];        /* Operands passed to the interpreter */
  81         struct acpi_node        arguments[MTH_NUM_ARGS];            /* Control method arguments */
  82         struct acpi_node        local_variables[MTH_NUM_LOCALS];    /* Control method locals */
  83         struct acpi_walk_list   *walk_list;
  84         u32                     parse_flags;
  85         u8                      walk_type;
  86         u8                      return_used;
  87         u16                     opcode;                             /* Current AML opcode */
  88         u32                     prev_arg_types;
  89         u16                     current_sync_level;                 /* Mutex Sync (nested acquire) level */
  90
  91         /* Debug support */
  92
  93         u32                     method_breakpoint;
  94
  95
  96 } ACPI_WALK_STATE;
  97
  98
  99 /*
 100  * Walk list - head of a tree of walk states.  Multiple walk states are created when there
 101  * are nested control methods executing.
 102  */
 103 typedef struct acpi_walk_list
 104 {
 105
 106         ACPI_WALK_STATE         *walk_state;
 107         ACPI_OBJECT_MUTEX       acquired_mutex_list;               /* List of all currently acquired mutexes */
 108
 109 } ACPI_WALK_LIST;
 110
 111
 112 /* Info used by Acpi_ps_init_objects */
 113
 114 typedef struct acpi_init_walk_info
 115 {
 116         u16                     method_count;
 117         u16                     op_region_count;
 118         u16                     field_count;
 119         u16                     op_region_init;
 120         u16                     field_init;
 121         u16                     object_count;
 122         ACPI_TABLE_DESC         *table_desc;
 123
 124 } ACPI_INIT_WALK_INFO;
 125
 126
 127 /* Info used by TBD */
 128
 129 typedef struct acpi_device_walk_info
 130 {
 131         u16                     device_count;
 132         u16                     num_STA;
 133         u16                     num_INI;
 134         ACPI_TABLE_DESC         *table_desc;
 135
 136 } ACPI_DEVICE_WALK_INFO;
 137
 138
 139 /* TBD: [Restructure] Merge with struct above */
 140
 141 typedef struct acpi_walk_info
 142 {
 143         u32                     debug_level;
 144         u32                     owner_id;
 145
 146 } ACPI_WALK_INFO;
 147
 148 typedef struct acpi_get_devices_info
 149 {
 150         WALK_CALLBACK           user_function;
 151         void                    *context;
 152         NATIVE_CHAR             *hid;
 153
 154 } ACPI_GET_DEVICES_INFO;
 155
 156
 157 #endif