Commit | Line | Data |
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82664963 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
1da177e4 LT |
2 | /* |
3 | * transport_class.h - a generic container for all transport classes | |
4 | * | |
5 | * Copyright (c) 2005 - James Bottomley <James.Bottomley@steeleye.com> | |
1da177e4 LT |
6 | */ |
7 | ||
8 | #ifndef _TRANSPORT_CLASS_H_ | |
9 | #define _TRANSPORT_CLASS_H_ | |
10 | ||
11 | #include <linux/device.h> | |
187f1882 | 12 | #include <linux/bug.h> |
1da177e4 LT |
13 | #include <linux/attribute_container.h> |
14 | ||
d0a7e574 JB |
15 | struct transport_container; |
16 | ||
1da177e4 LT |
17 | struct transport_class { |
18 | struct class class; | |
d0a7e574 | 19 | int (*setup)(struct transport_container *, struct device *, |
ee959b00 | 20 | struct device *); |
d0a7e574 | 21 | int (*configure)(struct transport_container *, struct device *, |
ee959b00 | 22 | struct device *); |
d0a7e574 | 23 | int (*remove)(struct transport_container *, struct device *, |
ee959b00 | 24 | struct device *); |
1da177e4 LT |
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; | |
a4dbd674 | 58 | const struct attribute_group *statistics; |
1da177e4 LT |
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 *); | |
cd7ea70b | 65 | int transport_add_device(struct device *); |
1da177e4 LT |
66 | void transport_setup_device(struct device *); |
67 | void transport_configure_device(struct device *); | |
68 | void transport_destroy_device(struct device *); | |
69 | ||
cd7ea70b | 70 | static inline int |
1da177e4 LT |
71 | transport_register_device(struct device *dev) |
72 | { | |
a8636780 YY |
73 | int ret; |
74 | ||
1da177e4 | 75 | transport_setup_device(dev); |
a8636780 YY |
76 | ret = transport_add_device(dev); |
77 | if (ret) | |
78 | transport_destroy_device(dev); | |
79 | ||
80 | return ret; | |
1da177e4 LT |
81 | } |
82 | ||
83 | static inline void | |
84 | transport_unregister_device(struct device *dev) | |
85 | { | |
86 | transport_remove_device(dev); | |
87 | transport_destroy_device(dev); | |
88 | } | |
89 | ||
90 | static inline int transport_container_register(struct transport_container *tc) | |
91 | { | |
92 | return attribute_container_register(&tc->ac); | |
93 | } | |
94 | ||
2f3edc69 | 95 | static inline void transport_container_unregister(struct transport_container *tc) |
1da177e4 | 96 | { |
2f3edc69 JB |
97 | if (unlikely(attribute_container_unregister(&tc->ac))) |
98 | BUG(); | |
1da177e4 LT |
99 | } |
100 | ||
101 | int transport_class_register(struct transport_class *); | |
102 | int anon_transport_class_register(struct anon_transport_class *); | |
103 | void transport_class_unregister(struct transport_class *); | |
104 | void anon_transport_class_unregister(struct anon_transport_class *); | |
105 | ||
106 | ||
107 | #endif |