1 /******************************************************************************
3 * Name: acstruct.h - Internal structs
5 *****************************************************************************/
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44 #ifndef __ACSTRUCT_H__
45 #define __ACSTRUCT_H__
47 /* acpisrc:StructDefs -- for acpisrc conversion */
49 /*****************************************************************************
51 * Tree walking typedefs and structs
53 ****************************************************************************/
57 * Walk state - current state of a parse tree walk. Used for both a leisurely
58 * stroll through the tree (for whatever reason), and for control method
61 #define ACPI_NEXT_OP_DOWNWARD 1
62 #define ACPI_NEXT_OP_UPWARD 2
65 * Groups of definitions for WalkType used for different implementations of
66 * walkers (never simultaneously) - flags for interpreter:
68 #define ACPI_WALK_NON_METHOD 0
69 #define ACPI_WALK_METHOD 0x01
70 #define ACPI_WALK_METHOD_RESTART 0x02
72 /* Flags for iASL compiler only */
74 #define ACPI_WALK_CONST_REQUIRED 0x10
75 #define ACPI_WALK_CONST_OPTIONAL 0x20
78 typedef struct acpi_walk_state
80 struct acpi_walk_state *Next; /* Next WalkState in list */
81 UINT8 DescriptorType; /* To differentiate various internal objs */
83 UINT16 Opcode; /* Current AML opcode */
84 UINT8 NextOpInfo; /* Info about NextOp */
85 UINT8 NumOperands; /* Stack pointer for Operands[] array */
86 UINT8 OperandIndex; /* Index into operand stack, to be used by AcpiDsObjStackPush */
87 ACPI_OWNER_ID OwnerId; /* Owner of objects created during the walk */
88 BOOLEAN LastPredicate; /* Result of last predicate */
92 UINT8 PassNumber; /* Parse pass during table load */
93 UINT8 ResultSize; /* Total elements for the result stack */
94 UINT8 ResultCount; /* Current number of occupied elements of result stack */
97 UINT32 MethodBreakpoint; /* For single stepping */
98 UINT32 UserBreakpoint; /* User AML breakpoint */
101 ACPI_PARSE_STATE ParserState; /* Current state of parser */
103 UINT32 ArgCount; /* push for fixed or var args */
105 struct acpi_namespace_node Arguments[ACPI_METHOD_NUM_ARGS]; /* Control method arguments */
106 struct acpi_namespace_node LocalVariables[ACPI_METHOD_NUM_LOCALS]; /* Control method locals */
107 union acpi_operand_object *Operands[ACPI_OBJ_NUM_OPERANDS + 1]; /* Operands passed to the interpreter (+1 for NULL terminator) */
108 union acpi_operand_object **Params;
111 union acpi_operand_object **CallerReturnDesc;
112 ACPI_GENERIC_STATE *ControlState; /* List of control states (nested IFs) */
113 struct acpi_namespace_node *DeferredNode; /* Used when executing deferred opcodes */
114 union acpi_operand_object *ImplicitReturnObj;
115 struct acpi_namespace_node *MethodCallNode; /* Called method Node*/
116 ACPI_PARSE_OBJECT *MethodCallOp; /* MethodCall Op if running a method */
117 union acpi_operand_object *MethodDesc; /* Method descriptor if running a method */
118 struct acpi_namespace_node *MethodNode; /* Method node if running a method. */
119 ACPI_PARSE_OBJECT *Op; /* Current parser op */
120 const ACPI_OPCODE_INFO *OpInfo; /* Info on current opcode */
121 ACPI_PARSE_OBJECT *Origin; /* Start of walk [Obsolete] */
122 union acpi_operand_object *ResultObj;
123 ACPI_GENERIC_STATE *Results; /* Stack of accumulated results */
124 union acpi_operand_object *ReturnDesc; /* Return object, if any */
125 ACPI_GENERIC_STATE *ScopeInfo; /* Stack of nested scopes */
126 ACPI_PARSE_OBJECT *PrevOp; /* Last op that was processed */
127 ACPI_PARSE_OBJECT *NextOp; /* next op to be processed */
128 ACPI_THREAD_STATE *Thread;
129 ACPI_PARSE_DOWNWARDS DescendingCallback;
130 ACPI_PARSE_UPWARDS AscendingCallback;
135 /* Info used by AcpiNsInitializeObjects and AcpiDsInitializeObjects */
137 typedef struct acpi_init_walk_info
143 UINT32 OpRegionCount;
151 ACPI_OWNER_ID OwnerId;
153 } ACPI_INIT_WALK_INFO;
156 typedef struct acpi_get_devices_info
158 ACPI_WALK_CALLBACK UserFunction;
162 } ACPI_GET_DEVICES_INFO;
165 typedef union acpi_aml_operands
167 ACPI_OPERAND_OBJECT *Operands[7];
171 ACPI_OBJECT_INTEGER *Type;
172 ACPI_OBJECT_INTEGER *Code;
173 ACPI_OBJECT_INTEGER *Argument;
179 ACPI_OPERAND_OBJECT *Source;
180 ACPI_OBJECT_INTEGER *Index;
181 ACPI_OPERAND_OBJECT *Target;
187 ACPI_OPERAND_OBJECT *Source;
188 ACPI_OBJECT_INTEGER *Index;
189 ACPI_OBJECT_INTEGER *Length;
190 ACPI_OPERAND_OBJECT *Target;
198 * Structure used to pass object evaluation parameters.
199 * Purpose is to reduce CPU stack use.
201 typedef struct acpi_evaluate_info
203 ACPI_NAMESPACE_NODE *PrefixNode;
205 ACPI_OPERAND_OBJECT *ObjDesc;
206 ACPI_OPERAND_OBJECT **Parameters;
207 ACPI_NAMESPACE_NODE *ResolvedNode;
208 ACPI_OPERAND_OBJECT *ReturnObject;
211 UINT8 ReturnObjectType;
214 } ACPI_EVALUATE_INFO;
216 /* Values for Flags above */
218 #define ACPI_IGNORE_RETURN_VALUE 1
221 /* Info used by AcpiNsInitializeDevices */
223 typedef struct acpi_device_walk_info
225 ACPI_TABLE_DESC *TableDesc;
226 ACPI_EVALUATE_INFO *EvaluateInfo;
231 } ACPI_DEVICE_WALK_INFO;
234 /* TBD: [Restructure] Merge with struct above */
236 typedef struct acpi_walk_info
240 ACPI_OWNER_ID OwnerId;
247 #define ACPI_DISPLAY_SUMMARY (UINT8) 0
248 #define ACPI_DISPLAY_OBJECTS (UINT8) 1
249 #define ACPI_DISPLAY_MASK (UINT8) 1
251 #define ACPI_DISPLAY_SHORT (UINT8) 2