include/linux/transport_class.h

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