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/attribute_container.h>
14
15 struct transport_container;
16
17 struct transport_class {
18 struct class class;
19 int (*setup)(struct transport_container *, struct device *,
20 struct device *);
21 int (*configure)(struct transport_container *, struct device *,
22 struct device *);
23 int (*remove)(struct transport_container *, struct device *,
24 struct device *);
25 };
26
27 #define DECLARE_TRANSPORT_CLASS(cls, nm, su, rm, cfg) \
28 struct transport_class cls = { \
29 .class = { \
30 .name = nm, \
31 }, \
32 .setup = su, \
33 .remove = rm, \
34 .configure = cfg, \
35 }
36
37
38 struct anon_transport_class {
39 struct transport_class tclass;
40 struct attribute_container container;
41 };
42
43 #define DECLARE_ANON_TRANSPORT_CLASS(cls, mtch, cfg) \
44 struct anon_transport_class cls = { \
45 .tclass = { \
46 .configure = cfg, \
47 }, \
48 . container = { \
49 .match = mtch, \
50 }, \
51 }
52
53 #define class_to_transport_class(x) \
54 container_of(x, struct transport_class, class)
55
56 struct transport_container {
57 struct attribute_container ac;
58 struct attribute_group *statistics;
59 };
60
61 #define attribute_container_to_transport_container(x) \
62 container_of(x, struct transport_container, ac)
63
64 void transport_remove_device(struct device *);
65 void transport_add_device(struct device *);
66 void transport_setup_device(struct device *);
67 void transport_configure_device(struct device *);
68 void transport_destroy_device(struct device *);
69
70 static inline void
71 transport_register_device(struct device *dev)
72 {
73 transport_setup_device(dev);
74 transport_add_device(dev);
75 }
76
77 static inline void
78 transport_unregister_device(struct device *dev)
79 {
80 transport_remove_device(dev);
81 transport_destroy_device(dev);
82 }
83
84 static inline int transport_container_register(struct transport_container *tc)
85 {
86 return attribute_container_register(&tc->ac);
87 }
88
89 static inline void transport_container_unregister(struct transport_container *tc)
90 {
91 if (unlikely(attribute_container_unregister(&tc->ac)))
92 BUG();
93 }
94
95 int transport_class_register(struct transport_class *);
96 int anon_transport_class_register(struct anon_transport_class *);
97 void transport_class_unregister(struct transport_class *);
98 void anon_transport_class_unregister(struct anon_transport_class *);
99
100
101 #endif
102
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