drivers/acpi/acpica/acstruct.h

Source file repositories/reference/linux-study-clean/drivers/acpi/acpica/acstruct.h

File Facts

System
Linux kernel
Corpus path
drivers/acpi/acpica/acstruct.h
Extension
.h
Size
7274 bytes
Lines
223
Domain
Driver Families
Bucket
drivers/acpi
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct acpi_walk_state {
	struct acpi_walk_state *next;	/* Next walk_state in list */
	u8 descriptor_type;	/* To differentiate various internal objs */
	u8 walk_type;
	u16 opcode;		/* Current AML opcode */
	u8 next_op_info;	/* Info about next_op */
	u8 num_operands;	/* Stack pointer for Operands[] array */
	u8 operand_index;	/* Index into operand stack, to be used by acpi_ds_obj_stack_push */
	acpi_owner_id owner_id;	/* Owner of objects created during the walk */
	u8 last_predicate;	/* Result of last predicate */
	u8 current_result;
	u8 return_used;
	u8 scope_depth;
	u8 pass_number;		/* Parse pass during table load */
	u8 namespace_override;	/* Override existing objects */
	u8 result_size;		/* Total elements for the result stack */
	u8 result_count;	/* Current number of occupied elements of result stack */
	u8 *aml;
	u32 arg_types;
	u32 method_breakpoint;	/* For single stepping */
	u32 user_breakpoint;	/* User AML breakpoint */
	u32 parse_flags;

	struct acpi_parse_state parser_state;	/* Current state of parser */
	u32 prev_arg_types;
	u32 arg_count;		/* push for fixed or var args */
	u16 method_nesting_depth;
	u8 method_is_nested;

	struct acpi_namespace_node arguments[ACPI_METHOD_NUM_ARGS];	/* Control method arguments */
	struct acpi_namespace_node local_variables[ACPI_METHOD_NUM_LOCALS];	/* Control method locals */
	union acpi_operand_object *operands[ACPI_OBJ_NUM_OPERANDS + 1];	/* Operands passed to the interpreter (+1 for NULL terminator) */
	union acpi_operand_object **params;

	u8 *aml_last_while;
	union acpi_operand_object **caller_return_desc;
	union acpi_generic_state *control_state;	/* List of control states (nested IFs) */
	struct acpi_namespace_node *deferred_node;	/* Used when executing deferred opcodes */
	union acpi_operand_object *implicit_return_obj;
	struct acpi_namespace_node *method_call_node;	/* Called method Node */
	union acpi_parse_object *method_call_op;	/* method_call Op if running a method */
	union acpi_operand_object *method_desc;	/* Method descriptor if running a method */
	struct acpi_namespace_node *method_node;	/* Method node if running a method */
	char *method_pathname;	/* Full pathname of running method */
	union acpi_parse_object *op;	/* Current parser op */
	const struct acpi_opcode_info *op_info;	/* Info on current opcode */
	union acpi_parse_object *origin;	/* Start of walk [Obsolete] */
	union acpi_operand_object *result_obj;
	union acpi_generic_state *results;	/* Stack of accumulated results */
	union acpi_operand_object *return_desc;	/* Return object, if any */
	union acpi_generic_state *scope_info;	/* Stack of nested scopes */
	union acpi_parse_object *prev_op;	/* Last op that was processed */
	union acpi_parse_object *next_op;	/* next op to be processed */
	struct acpi_thread_state *thread;
	acpi_parse_downwards descending_callback;
	acpi_parse_upwards ascending_callback;
};

/* Info used by acpi_ns_initialize_objects and acpi_ds_initialize_objects */

struct acpi_init_walk_info {
	u32 table_index;
	u32 object_count;
	u32 method_count;
	u32 serial_method_count;
	u32 non_serial_method_count;
	u32 serialized_method_count;
	u32 device_count;
	u32 op_region_count;
	u32 field_count;
	u32 buffer_count;
	u32 package_count;
	u32 op_region_init;
	u32 field_init;
	u32 buffer_init;
	u32 package_init;
	acpi_owner_id owner_id;
};

struct acpi_get_devices_info {
	acpi_walk_callback user_function;
	void *context;
	const char *hid;
};

union acpi_aml_operands {
	union acpi_operand_object *operands[7];

	struct {
		struct acpi_object_integer *type;

Annotation

Implementation Notes