acobject.h

xen 3.2.2 源码

struct acpi_object_power_resource
{
	ACPI_OBJECT_COMMON_HEADER
	ACPI_COMMON_NOTIFY_INFO
	u32                                     system_level;
	u32                                     resource_order;
};


struct acpi_object_processor
{
	ACPI_OBJECT_COMMON_HEADER
	ACPI_COMMON_NOTIFY_INFO
	u32                                     proc_id;
	u32                                     length;
	acpi_io_address                         address;
};


struct acpi_object_thermal_zone
{
	ACPI_OBJECT_COMMON_HEADER
	ACPI_COMMON_NOTIFY_INFO
};


/******************************************************************************
 *
 * Fields.  All share a common header/info field.
 *
 *****************************************************************************/

struct acpi_object_field_common                         /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */
{
	ACPI_OBJECT_COMMON_HEADER
	ACPI_COMMON_FIELD_INFO
	union acpi_operand_object               *region_obj;        /* Containing Operation Region object */
			  /* (REGION/BANK fields only) */
};


struct acpi_object_region_field
{
	ACPI_OBJECT_COMMON_HEADER
	ACPI_COMMON_FIELD_INFO
	union acpi_operand_object               *region_obj;        /* Containing op_region object */
};


struct acpi_object_bank_field
{
	ACPI_OBJECT_COMMON_HEADER
	ACPI_COMMON_FIELD_INFO
	union acpi_operand_object               *region_obj;        /* Containing op_region object */
	union acpi_operand_object               *bank_obj;          /* bank_select Register object */
};


struct acpi_object_index_field
{
	ACPI_OBJECT_COMMON_HEADER
	ACPI_COMMON_FIELD_INFO

	/*
	 * No "region_obj" pointer needed since the Index and Data registers
	 * are each field definitions unto themselves.
	 */
	union acpi_operand_object               *index_obj;         /* Index register */
	union acpi_operand_object               *data_obj;          /* Data register */
};


/* The buffer_field is different in that it is part of a Buffer, not an op_region */

struct acpi_object_buffer_field
{
	ACPI_OBJECT_COMMON_HEADER
	ACPI_COMMON_FIELD_INFO
	union acpi_operand_object               *buffer_obj;        /* Containing Buffer object */
};


/******************************************************************************
 *
 * Objects for handlers
 *
 *****************************************************************************/

struct acpi_object_notify_handler
{
	ACPI_OBJECT_COMMON_HEADER
	struct acpi_namespace_node              *node;              /* Parent device */
	acpi_notify_handler                     handler;
	void                                    *context;
};


/* Flags for address handler */

#define ACPI_ADDR_HANDLER_DEFAULT_INSTALLED  0x1


struct acpi_object_addr_handler
{
	ACPI_OBJECT_COMMON_HEADER
	u8                                      space_id;
	u16                                     hflags;
	acpi_adr_space_handler                  handler;
	struct acpi_namespace_node              *node;              /* Parent device */
	void                                    *context;
	acpi_adr_space_setup                    setup;
	union acpi_operand_object               *region_list;       /* regions using this handler */
	union acpi_operand_object               *next;
};


/******************************************************************************
 *
 * Special internal objects
 *
 *****************************************************************************/

/*
 * The Reference object type is used for these opcodes:
 * Arg[0-6], Local[0-7], index_op, name_op, zero_op, one_op, ones_op, debug_op
 */
struct acpi_object_reference
{
	ACPI_OBJECT_COMMON_HEADER
	u8                                      target_type;        /* Used for index_op */
	u16                                     opcode;
	u32                                     offset;             /* Used for arg_op, local_op, and index_op */
	void                                    *object;            /* name_op=>HANDLE to obj, index_op=>union acpi_operand_object  */
	struct acpi_namespace_node              *node;
	union acpi_operand_object               **where;
};


/*
 * Extra object is used as additional storage for types that
 * have AML code in their declarations (term_args) that must be
 * evaluated at run time.
 *
 * Currently: Region and field_unit types
 */
struct acpi_object_extra
{
	ACPI_OBJECT_COMMON_HEADER
	u8                                      byte_fill1;
	u16                                     word_fill1;
	u32                                     aml_length;
	u8                                      *aml_start;
	struct acpi_namespace_node              *method_REG;        /* _REG method for this region (if any) */
	void                                    *region_context;    /* Region-specific data */
};


/* Additional data that can be attached to namespace nodes */

struct acpi_object_data
{
	ACPI_OBJECT_COMMON_HEADER
	acpi_object_handler                     handler;
	void                                    *pointer;
};


/* Structure used when objects are cached for reuse */

struct acpi_object_cache_list
{
	ACPI_OBJECT_COMMON_HEADER
	union acpi_operand_object               *next;              /* Link for object cache and internal lists*/
};


/******************************************************************************
 *
 * union acpi_operand_object Descriptor - a giant union of all of the above
 *
 *****************************************************************************/

union acpi_operand_object
{
	struct acpi_object_common               common;
	struct acpi_object_integer              integer;
	struct acpi_object_string               string;
	struct acpi_object_buffer               buffer;
	struct acpi_object_package              package;
	struct acpi_object_event                event;
	struct acpi_object_method               method;
	struct acpi_object_mutex                mutex;
	struct acpi_object_region               region;
	struct acpi_object_notify_common        common_notify;
	struct acpi_object_device               device;
	struct acpi_object_power_resource       power_resource;
	struct acpi_object_processor            processor;
	struct acpi_object_thermal_zone         thermal_zone;
	struct acpi_object_field_common         common_field;
	struct acpi_object_region_field         field;
	struct acpi_object_buffer_field         buffer_field;
	struct acpi_object_bank_field           bank_field;
	struct acpi_object_index_field          index_field;
	struct acpi_object_notify_handler       notify;
	struct acpi_object_addr_handler         address_space;
	struct acpi_object_reference            reference;
	struct acpi_object_extra                extra;
	struct acpi_object_data                 data;
	struct acpi_object_cache_list           cache;
};


/******************************************************************************
 *
 * union acpi_descriptor - objects that share a common descriptor identifier
 *
 *****************************************************************************/


/* Object descriptor types */

#define ACPI_DESC_TYPE_CACHED           0x01        /* Used only when object is cached */
#define ACPI_DESC_TYPE_STATE            0x02
#define ACPI_DESC_TYPE_STATE_UPDATE     0x03
#define ACPI_DESC_TYPE_STATE_PACKAGE    0x04
#define ACPI_DESC_TYPE_STATE_CONTROL    0x05
#define ACPI_DESC_TYPE_STATE_RPSCOPE    0x06
#define ACPI_DESC_TYPE_STATE_PSCOPE     0x07
#define ACPI_DESC_TYPE_STATE_WSCOPE     0x08
#define ACPI_DESC_TYPE_STATE_RESULT     0x09
#define ACPI_DESC_TYPE_STATE_NOTIFY     0x0A
#define ACPI_DESC_TYPE_STATE_THREAD     0x0B
#define ACPI_DESC_TYPE_WALK             0x0C
#define ACPI_DESC_TYPE_PARSER           0x0D
#define ACPI_DESC_TYPE_OPERAND          0x0E
#define ACPI_DESC_TYPE_NAMED            0x0F
#define ACPI_DESC_TYPE_MAX              0x0F


union acpi_descriptor
{
	u8                                      descriptor_id;  /* To differentiate various internal objs */\
	union acpi_operand_object               object;
	struct acpi_namespace_node              node;
	union acpi_parse_object                 op;
};


#endif /* _ACOBJECT_H */