1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ 2 /****************************************************************************** 3 * 4 * Name: acstruct.h - Internal structs 5 * 6 * Copyright (C) 2000 - 2021, Intel Corp. 7 * 8 *****************************************************************************/ 9 10 #ifndef __ACSTRUCT_H__ 11 #define __ACSTRUCT_H__ 12 13 /* acpisrc:struct_defs -- for acpisrc conversion */ 14 15 /***************************************************************************** 16 * 17 * Tree walking typedefs and structs 18 * 19 ****************************************************************************/ 20 21 /* 22 * Walk state - current state of a parse tree walk. Used for both a leisurely 23 * stroll through the tree (for whatever reason), and for control method 24 * execution. 25 */ 26 #define ACPI_NEXT_OP_DOWNWARD 1 27 #define ACPI_NEXT_OP_UPWARD 2 28 29 /* 30 * Groups of definitions for walk_type used for different implementations of 31 * walkers (never simultaneously) - flags for interpreter: 32 */ 33 #define ACPI_WALK_NON_METHOD 0 34 #define ACPI_WALK_METHOD 0x01 35 #define ACPI_WALK_METHOD_RESTART 0x02 36 37 struct acpi_walk_state { 38 struct acpi_walk_state *next; /* Next walk_state in list */ 39 u8 descriptor_type; /* To differentiate various internal objs */ 40 u8 walk_type; 41 u16 opcode; /* Current AML opcode */ 42 u8 next_op_info; /* Info about next_op */ 43 u8 num_operands; /* Stack pointer for Operands[] array */ 44 u8 operand_index; /* Index into operand stack, to be used by acpi_ds_obj_stack_push */ 45 acpi_owner_id owner_id; /* Owner of objects created during the walk */ 46 u8 last_predicate; /* Result of last predicate */ 47 u8 current_result; 48 u8 return_used; 49 u8 scope_depth; 50 u8 pass_number; /* Parse pass during table load */ 51 u8 namespace_override; /* Override existing objects */ 52 u8 result_size; /* Total elements for the result stack */ 53 u8 result_count; /* Current number of occupied elements of result stack */ 54 u8 *aml; 55 u32 arg_types; 56 u32 method_breakpoint; /* For single stepping */ 57 u32 user_breakpoint; /* User AML breakpoint */ 58 u32 parse_flags; 59 60 struct acpi_parse_state parser_state; /* Current state of parser */ 61 u32 prev_arg_types; 62 u32 arg_count; /* push for fixed or var args */ 63 u16 method_nesting_depth; 64 u8 method_is_nested; 65 66 struct acpi_namespace_node arguments[ACPI_METHOD_NUM_ARGS]; /* Control method arguments */ 67 struct acpi_namespace_node local_variables[ACPI_METHOD_NUM_LOCALS]; /* Control method locals */ 68 union acpi_operand_object *operands[ACPI_OBJ_NUM_OPERANDS + 1]; /* Operands passed to the interpreter (+1 for NULL terminator) */ 69 union acpi_operand_object **params; 70 71 u8 *aml_last_while; 72 union acpi_operand_object **caller_return_desc; 73 union acpi_generic_state *control_state; /* List of control states (nested IFs) */ 74 struct acpi_namespace_node *deferred_node; /* Used when executing deferred opcodes */ 75 union acpi_operand_object *implicit_return_obj; 76 struct acpi_namespace_node *method_call_node; /* Called method Node */ 77 union acpi_parse_object *method_call_op; /* method_call Op if running a method */ 78 union acpi_operand_object *method_desc; /* Method descriptor if running a method */ 79 struct acpi_namespace_node *method_node; /* Method node if running a method */ 80 char *method_pathname; /* Full pathname of running method */ 81 union acpi_parse_object *op; /* Current parser op */ 82 const struct acpi_opcode_info *op_info; /* Info on current opcode */ 83 union acpi_parse_object *origin; /* Start of walk [Obsolete] */ 84 union acpi_operand_object *result_obj; 85 union acpi_generic_state *results; /* Stack of accumulated results */ 86 union acpi_operand_object *return_desc; /* Return object, if any */ 87 union acpi_generic_state *scope_info; /* Stack of nested scopes */ 88 union acpi_parse_object *prev_op; /* Last op that was processed */ 89 union acpi_parse_object *next_op; /* next op to be processed */ 90 struct acpi_thread_state *thread; 91 acpi_parse_downwards descending_callback; 92 acpi_parse_upwards ascending_callback; 93 }; 94 95 /* Info used by acpi_ns_initialize_objects and acpi_ds_initialize_objects */ 96 97 struct acpi_init_walk_info { 98 u32 table_index; 99 u32 object_count; 100 u32 method_count; 101 u32 serial_method_count; 102 u32 non_serial_method_count; 103 u32 serialized_method_count; 104 u32 device_count; 105 u32 op_region_count; 106 u32 field_count; 107 u32 buffer_count; 108 u32 package_count; 109 u32 op_region_init; 110 u32 field_init; 111 u32 buffer_init; 112 u32 package_init; 113 acpi_owner_id owner_id; 114 }; 115 116 struct acpi_get_devices_info { 117 acpi_walk_callback user_function; 118 void *context; 119 const char *hid; 120 }; 121 122 union acpi_aml_operands { 123 union acpi_operand_object *operands[7]; 124 125 struct { 126 struct acpi_object_integer *type; 127 struct acpi_object_integer *code; 128 struct acpi_object_integer *argument; 129 130 } fatal; 131 132 struct { 133 union acpi_operand_object *source; 134 struct acpi_object_integer *index; 135 union acpi_operand_object *target; 136 137 } index; 138 139 struct { 140 union acpi_operand_object *source; 141 struct acpi_object_integer *index; 142 struct acpi_object_integer *length; 143 union acpi_operand_object *target; 144 145 } mid; 146 }; 147 148 /* 149 * Structure used to pass object evaluation information and parameters. 150 * Purpose is to reduce CPU stack use. 151 */ 152 struct acpi_evaluate_info { 153 /* The first 3 elements are passed by the caller to acpi_ns_evaluate */ 154 155 struct acpi_namespace_node *prefix_node; /* Input: starting node */ 156 const char *relative_pathname; /* Input: path relative to prefix_node */ 157 union acpi_operand_object **parameters; /* Input: argument list */ 158 159 struct acpi_namespace_node *node; /* Resolved node (prefix_node:relative_pathname) */ 160 union acpi_operand_object *obj_desc; /* Object attached to the resolved node */ 161 char *full_pathname; /* Full pathname of the resolved node */ 162 163 const union acpi_predefined_info *predefined; /* Used if Node is a predefined name */ 164 union acpi_operand_object *return_object; /* Object returned from the evaluation */ 165 union acpi_operand_object *parent_package; /* Used if return object is a Package */ 166 167 u32 return_flags; /* Used for return value analysis */ 168 u32 return_btype; /* Bitmapped type of the returned object */ 169 u16 param_count; /* Count of the input argument list */ 170 u16 node_flags; /* Same as Node->Flags */ 171 u8 pass_number; /* Parser pass number */ 172 u8 return_object_type; /* Object type of the returned object */ 173 u8 flags; /* General flags */ 174 }; 175 176 /* Values for Flags above */ 177 178 #define ACPI_IGNORE_RETURN_VALUE 1 179 180 /* Defines for return_flags field above */ 181 182 #define ACPI_OBJECT_REPAIRED 1 183 #define ACPI_OBJECT_WRAPPED 2 184 185 /* Info used by acpi_ns_initialize_devices */ 186 187 struct acpi_device_walk_info { 188 struct acpi_table_desc *table_desc; 189 struct acpi_evaluate_info *evaluate_info; 190 u32 device_count; 191 u32 num_STA; 192 u32 num_INI; 193 }; 194 195 /* Info used by Acpi acpi_db_display_fields */ 196 197 struct acpi_region_walk_info { 198 u32 debug_level; 199 u32 count; 200 acpi_owner_id owner_id; 201 u8 display_type; 202 u32 address_space_id; 203 }; 204 205 /* TBD: [Restructure] Merge with struct above */ 206 207 struct acpi_walk_info { 208 u32 debug_level; 209 u32 count; 210 acpi_owner_id owner_id; 211 u8 display_type; 212 }; 213 214 /* Display Types */ 215 216 #define ACPI_DISPLAY_SUMMARY (u8) 0 217 #define ACPI_DISPLAY_OBJECTS (u8) 1 218 #define ACPI_DISPLAY_MASK (u8) 1 219 220 #define ACPI_DISPLAY_SHORT (u8) 2 221 222 #endif 223