| 1 |
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| 2 | |
| 3 | * transport_class.h - a generic container for all transport classes
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| 4 | *
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| 5 | * Copyright (c) 2005 - James Bottomley <[email protected]>
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| 6 |
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| 7 |
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| 8 | #ifndef _TRANSPORT_CLASS_H_
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| 9 | #define _TRANSPORT_CLASS_H_
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| 10 |
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| 11 | #include <linux/device.h>
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| 12 | #include <linux/bug.h>
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| 13 | #include <linux/attribute_container.h>
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| 14 |
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| 15 | struct transport_container;
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| 16 |
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| 17 | struct transport_class {
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| 18 | struct class class;
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| 19 | int (*setup)(struct transport_container *, struct device *,
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| 20 | struct device *);
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| 21 | int (*configure)(struct transport_container *, struct device *,
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| 22 | struct device *);
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| 23 | int (*remove)(struct transport_container *, struct device *,
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| 24 | struct device *);
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| 25 | };
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| 26 |
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| 27 | #define DECLARE_TRANSPORT_CLASS(cls, nm, su, rm, cfg) \
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| 28 | struct transport_class cls = { \
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| 29 | .class = { \
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| 30 | .name = nm, \
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| 31 | }, \
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| 32 | .setup = su, \
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| 33 | .remove = rm, \
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| 34 | .configure = cfg, \
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| 35 | }
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| 36 |
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| 37 |
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| 38 | struct anon_transport_class {
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| 39 | struct transport_class tclass;
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| 40 | struct attribute_container container;
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| 41 | };
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| 42 |
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| 43 | #define DECLARE_ANON_TRANSPORT_CLASS(cls, mtch, cfg) \
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| 44 | struct anon_transport_class cls = { \
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| 45 | .tclass = { \
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| 46 | .configure = cfg, \
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| 47 | }, \
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| 48 | . container = { \
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| 49 | .match = mtch, \
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| 50 | }, \
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| 51 | }
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| 52 |
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| 53 | #define class_to_transport_class(x) \
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| 54 | container_of(x, struct transport_class, class)
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| 55 |
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| 56 | struct transport_container {
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| 57 | struct attribute_container ac;
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| 58 | const struct attribute_group *statistics;
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| 59 | const struct attribute_group *encryption;
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| 60 | };
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| 61 |
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| 62 | #define attribute_container_to_transport_container(x) \
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| 63 | container_of(x, struct transport_container, ac)
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| 64 |
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| 65 | void transport_remove_device(struct device *);
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| 66 | int transport_add_device(struct device *);
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| 67 | void transport_setup_device(struct device *);
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| 68 | void transport_configure_device(struct device *);
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| 69 | void transport_destroy_device(struct device *);
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| 70 |
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| 71 | static inline int
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| 72 | transport_register_device(struct device *dev)
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| 73 | {
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| 74 | int ret;
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| 75 |
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| 76 | transport_setup_device(dev);
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| 77 | ret = transport_add_device(dev);
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| 78 | if (ret)
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| 79 | transport_destroy_device(dev);
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| 80 |
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| 81 | return ret;
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| 82 | }
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| 83 |
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| 84 | static inline void
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| 85 | transport_unregister_device(struct device *dev)
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| 86 | {
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| 87 | transport_remove_device(dev);
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| 88 | transport_destroy_device(dev);
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| 89 | }
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| 90 |
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| 91 | static inline void transport_container_register(struct transport_container *tc)
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| 92 | {
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| 93 | attribute_container_register(&tc->ac);
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| 94 | }
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| 95 |
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| 96 | static inline void transport_container_unregister(struct transport_container *tc)
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| 97 | {
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| 98 | if (unlikely(attribute_container_unregister(&tc->ac)))
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| 99 | BUG();
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| 100 | }
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| 101 |
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| 102 | int transport_class_register(struct transport_class *);
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| 103 | void anon_transport_class_register(struct anon_transport_class *);
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| 104 | void transport_class_unregister(struct transport_class *);
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| 105 | void anon_transport_class_unregister(struct anon_transport_class *);
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| 106 |
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| 107 |
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| 108 | #endif
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