1 /****************************************************************************** 2 * 3 * Name: acstruct.h - Internal structs 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2004, 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 60 #define ACPI_NEXT_OP_DOWNWARD 1 61 #define ACPI_NEXT_OP_UPWARD 2 62 63 #define ACPI_WALK_NON_METHOD 0 64 #define ACPI_WALK_METHOD 1 65 #define ACPI_WALK_METHOD_RESTART 2 66 #define ACPI_WALK_CONST_REQUIRED 3 67 #define ACPI_WALK_CONST_OPTIONAL 4 68 69 struct acpi_walk_state 70 { 71 u8 data_type; /* To differentiate various internal objs MUST BE FIRST!*/\ 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 u8 walk_type; 79 u16 opcode; /* Current AML opcode */ 80 u8 scope_depth; 81 u8 reserved1; 82 u32 arg_count; /* push for fixed or var args */ 83 u32 aml_offset; 84 u32 arg_types; 85 u32 method_breakpoint; /* For single stepping */ 86 u32 user_breakpoint; /* User AML breakpoint */ 87 u32 parse_flags; 88 u32 prev_arg_types; 89 90 u8 *aml_last_while; 91 struct acpi_namespace_node arguments[ACPI_METHOD_NUM_ARGS]; /* Control method arguments */ 92 union acpi_operand_object **caller_return_desc; 93 union acpi_generic_state *control_state; /* List of control states (nested IFs) */ 94 struct acpi_namespace_node *deferred_node; /* Used when executing deferred opcodes */ 95 struct acpi_namespace_node local_variables[ACPI_METHOD_NUM_LOCALS]; /* Control method locals */ 96 struct acpi_namespace_node *method_call_node; /* Called method Node*/ 97 union acpi_parse_object *method_call_op; /* method_call Op if running a method */ 98 union acpi_operand_object *method_desc; /* Method descriptor if running a method */ 99 struct acpi_namespace_node *method_node; /* Method node if running a method. */ 100 union acpi_parse_object *op; /* Current parser op */ 101 union acpi_operand_object *operands[ACPI_OBJ_NUM_OPERANDS+1]; /* Operands passed to the interpreter (+1 for NULL terminator) */ 102 const struct acpi_opcode_info *op_info; /* Info on current opcode */ 103 union acpi_parse_object *origin; /* Start of walk [Obsolete] */ 104 union acpi_operand_object **params; 105 struct acpi_parse_state parser_state; /* Current state of parser */ 106 union acpi_operand_object *result_obj; 107 union acpi_generic_state *results; /* Stack of accumulated results */ 108 union acpi_operand_object *return_desc; /* Return object, if any */ 109 union acpi_generic_state *scope_info; /* Stack of nested scopes */ 110 111 union acpi_parse_object *prev_op; /* Last op that was processed */ 112 union acpi_parse_object *next_op; /* next op to be processed */ 113 acpi_parse_downwards descending_callback; 114 acpi_parse_upwards ascending_callback; 115 struct acpi_thread_state *thread; 116 struct acpi_walk_state *next; /* Next walk_state in list */ 117 }; 118 119 120 /* Info used by acpi_ps_init_objects */ 121 122 struct acpi_init_walk_info 123 { 124 u16 method_count; 125 u16 device_count; 126 u16 op_region_count; 127 u16 field_count; 128 u16 buffer_count; 129 u16 package_count; 130 u16 op_region_init; 131 u16 field_init; 132 u16 buffer_init; 133 u16 package_init; 134 u16 object_count; 135 struct acpi_table_desc *table_desc; 136 }; 137 138 139 /* Info used by acpi_ns_initialize_devices */ 140 141 struct acpi_device_walk_info 142 { 143 u16 device_count; 144 u16 num_STA; 145 u16 num_INI; 146 struct acpi_table_desc *table_desc; 147 }; 148 149 150 /* TBD: [Restructure] Merge with struct above */ 151 152 struct acpi_walk_info 153 { 154 u32 debug_level; 155 u32 owner_id; 156 u8 display_type; 157 }; 158 159 /* Display Types */ 160 161 #define ACPI_DISPLAY_SUMMARY 0 162 #define ACPI_DISPLAY_OBJECTS 1 163 164 struct acpi_get_devices_info 165 { 166 acpi_walk_callback user_function; 167 void *context; 168 char *hid; 169 }; 170 171 172 union acpi_aml_operands 173 { 174 union acpi_operand_object *operands[7]; 175 176 struct 177 { 178 struct acpi_object_integer *type; 179 struct acpi_object_integer *code; 180 struct acpi_object_integer *argument; 181 182 } fatal; 183 184 struct 185 { 186 union acpi_operand_object *source; 187 struct acpi_object_integer *index; 188 union acpi_operand_object *target; 189 190 } index; 191 192 struct 193 { 194 union acpi_operand_object *source; 195 struct acpi_object_integer *index; 196 struct acpi_object_integer *length; 197 union acpi_operand_object *target; 198 199 } mid; 200 }; 201 202 203 #endif 204