1/****************************************************************************** 2 * 3 * Name: acstruct.h - Internal structs 4 * 5 *****************************************************************************/ 6 7/* 8 * Copyright (C) 2000 - 2008, Intel Corp. 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/* acpisrc:struct_defs -- for acpisrc conversion */ 48 49/***************************************************************************** 50 * 51 * Tree walking typedefs and structs 52 * 53 ****************************************************************************/ 54 55/* 56 * Walk state - current state of a parse tree walk. Used for both a leisurely 57 * stroll through the tree (for whatever reason), and for control method 58 * execution. 59 */ 60#define ACPI_NEXT_OP_DOWNWARD 1 61#define ACPI_NEXT_OP_UPWARD 2 62 63/* 64 * Groups of definitions for walk_type used for different implementations of 65 * walkers (never simultaneously) - flags for interpreter: 66 */ 67#define ACPI_WALK_NON_METHOD 0 68#define ACPI_WALK_METHOD 0x01 69#define ACPI_WALK_METHOD_RESTART 0x02 70 71/* Flags for i_aSL compiler only */ 72 73#define ACPI_WALK_CONST_REQUIRED 0x10 74#define ACPI_WALK_CONST_OPTIONAL 0x20 75 76struct acpi_walk_state { 77 struct acpi_walk_state *next; /* Next walk_state in list */ 78 u8 descriptor_type; /* To differentiate various internal objs */ 79 u8 walk_type; 80 u16 opcode; /* Current AML opcode */ 81 u8 next_op_info; /* Info about next_op */ 82 u8 num_operands; /* Stack pointer for Operands[] array */ 83 u8 operand_index; /* Index into operand stack, to be used by acpi_ds_obj_stack_push */ 84 acpi_owner_id owner_id; /* Owner of objects created during the walk */ 85 u8 last_predicate; /* Result of last predicate */ 86 u8 current_result; 87 u8 return_used; 88 u8 scope_depth; 89 u8 pass_number; /* Parse pass during table load */ 90 u8 result_size; /* Total elements for the result stack */ 91 u8 result_count; /* Current number of occupied elements of result stack */ 92 u32 aml_offset; 93 u32 arg_types; 94 u32 method_breakpoint; /* For single stepping */ 95 u32 user_breakpoint; /* User AML breakpoint */ 96 u32 parse_flags; 97 98 struct acpi_parse_state parser_state; /* Current state of parser */ 99 u32 prev_arg_types; 100 u32 arg_count; /* push for fixed or var args */ 101 102 struct acpi_namespace_node arguments[ACPI_METHOD_NUM_ARGS]; /* Control method arguments */ 103 struct acpi_namespace_node local_variables[ACPI_METHOD_NUM_LOCALS]; /* Control method locals */ 104 union acpi_operand_object *operands[ACPI_OBJ_NUM_OPERANDS + 1]; /* Operands passed to the interpreter (+1 for NULL terminator) */ 105 union acpi_operand_object **params; 106 107 u8 *aml_last_while; 108 union acpi_operand_object **caller_return_desc; 109 union acpi_generic_state *control_state; /* List of control states (nested IFs) */ 110 struct acpi_namespace_node *deferred_node; /* Used when executing deferred opcodes */ 111 union acpi_operand_object *implicit_return_obj; 112 struct acpi_namespace_node *method_call_node; /* Called method Node */ 113 union acpi_parse_object *method_call_op; /* method_call Op if running a method */ 114 union acpi_operand_object *method_desc; /* Method descriptor if running a method */ 115 struct acpi_namespace_node *method_node; /* Method node if running a method. */ 116 union acpi_parse_object *op; /* Current parser op */ 117 const struct acpi_opcode_info *op_info; /* Info on current opcode */ 118 union acpi_parse_object *origin; /* Start of walk [Obsolete] */ 119 union acpi_operand_object *result_obj; 120 union acpi_generic_state *results; /* Stack of accumulated results */ 121 union acpi_operand_object *return_desc; /* Return object, if any */ 122 union acpi_generic_state *scope_info; /* Stack of nested scopes */ 123 union acpi_parse_object *prev_op; /* Last op that was processed */ 124 union acpi_parse_object *next_op; /* next op to be processed */ 125 struct acpi_thread_state *thread; 126 acpi_parse_downwards descending_callback; 127 acpi_parse_upwards ascending_callback; 128}; 129 130/* Info used by acpi_ps_init_objects */ 131 132struct acpi_init_walk_info { 133 u16 method_count; 134 u16 device_count; 135 u16 op_region_count; 136 u16 field_count; 137 u16 buffer_count; 138 u16 package_count; 139 u16 op_region_init; 140 u16 field_init; 141 u16 buffer_init; 142 u16 package_init; 143 u16 object_count; 144 acpi_owner_id owner_id; 145 u32 table_index; 146}; 147 148struct acpi_get_devices_info { 149 acpi_walk_callback user_function; 150 void *context; 151 const char *hid; 152}; 153 154union acpi_aml_operands { 155 union acpi_operand_object *operands[7]; 156 157 struct { 158 struct acpi_object_integer *type; 159 struct acpi_object_integer *code; 160 struct acpi_object_integer *argument; 161 162 } fatal; 163 164 struct { 165 union acpi_operand_object *source; 166 struct acpi_object_integer *index; 167 union acpi_operand_object *target; 168 169 } index; 170 171 struct { 172 union acpi_operand_object *source; 173 struct acpi_object_integer *index; 174 struct acpi_object_integer *length; 175 union acpi_operand_object *target; 176 177 } mid; 178}; 179 180/* 181 * Structure used to pass object evaluation parameters. 182 * Purpose is to reduce CPU stack use. 183 */ 184struct acpi_evaluate_info { 185 struct acpi_namespace_node *prefix_node; 186 char *pathname; 187 union acpi_operand_object *obj_desc; 188 union acpi_operand_object **parameters; 189 struct acpi_namespace_node *resolved_node; 190 union acpi_operand_object *return_object; 191 u8 param_count; 192 u8 pass_number; 193 u8 return_object_type; 194 u8 flags; 195}; 196 197/* Values for Flags above */ 198 199#define ACPI_IGNORE_RETURN_VALUE 1 200 201/* Info used by acpi_ns_initialize_devices */ 202 203struct acpi_device_walk_info { 204 u16 device_count; 205 u16 num_STA; 206 u16 num_INI; 207 struct acpi_table_desc *table_desc; 208 struct acpi_evaluate_info *evaluate_info; 209}; 210 211/* TBD: [Restructure] Merge with struct above */ 212 213struct acpi_walk_info { 214 u32 debug_level; 215 u32 count; 216 acpi_owner_id owner_id; 217 u8 display_type; 218}; 219 220/* Display Types */ 221 222#define ACPI_DISPLAY_SUMMARY (u8) 0 223#define ACPI_DISPLAY_OBJECTS (u8) 1 224#define ACPI_DISPLAY_MASK (u8) 1 225 226#define ACPI_DISPLAY_SHORT (u8) 2 227 228#endif 229