1/*
2 * transport_class.h - a generic container for all transport classes
3 *
4 * Copyright (c) 2005 - James Bottomley <James.Bottomley@steeleye.com>
5 *
6 * This file is licensed under GPLv2
7 */
8
9#ifndef _TRANSPORT_CLASS_H_
10#define _TRANSPORT_CLASS_H_
11
12#include <linux/device.h>
13#include <linux/bug.h>
14#include <linux/attribute_container.h>
15
16struct transport_container;
17
18struct transport_class {
19	struct class class;
20	int (*setup)(struct transport_container *, struct device *,
21		     struct device *);
22	int (*configure)(struct transport_container *, struct device *,
23			 struct device *);
24	int (*remove)(struct transport_container *, struct device *,
25		      struct device *);
26};
27
28#define DECLARE_TRANSPORT_CLASS(cls, nm, su, rm, cfg)			\
29struct transport_class cls = {						\
30	.class = {							\
31		.name = nm,						\
32	},								\
33	.setup = su,							\
34	.remove = rm,							\
35	.configure = cfg,						\
36}
37
38
39struct anon_transport_class {
40	struct transport_class tclass;
41	struct attribute_container container;
42};
43
44#define DECLARE_ANON_TRANSPORT_CLASS(cls, mtch, cfg)		\
45struct anon_transport_class cls = {				\
46	.tclass = {						\
47		.configure = cfg,				\
48	},							\
49	. container = {						\
50		.match = mtch,					\
51	},							\
52}
53
54#define class_to_transport_class(x) \
55	container_of(x, struct transport_class, class)
56
57struct transport_container {
58	struct attribute_container ac;
59	const struct attribute_group *statistics;
60};
61
62#define attribute_container_to_transport_container(x) \
63	container_of(x, struct transport_container, ac)
64
65void transport_remove_device(struct device *);
66void transport_add_device(struct device *);
67void transport_setup_device(struct device *);
68void transport_configure_device(struct device *);
69void transport_destroy_device(struct device *);
70
71static inline void
72transport_register_device(struct device *dev)
73{
74	transport_setup_device(dev);
75	transport_add_device(dev);
76}
77
78static inline void
79transport_unregister_device(struct device *dev)
80{
81	transport_remove_device(dev);
82	transport_destroy_device(dev);
83}
84
85static inline int transport_container_register(struct transport_container *tc)
86{
87	return attribute_container_register(&tc->ac);
88}
89
90static inline void transport_container_unregister(struct transport_container *tc)
91{
92	if (unlikely(attribute_container_unregister(&tc->ac)))
93		BUG();
94}
95
96int transport_class_register(struct transport_class *);
97int anon_transport_class_register(struct anon_transport_class *);
98void transport_class_unregister(struct transport_class *);
99void anon_transport_class_unregister(struct anon_transport_class *);
100
101
102#endif
103