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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* transport_class.h - a generic container for all transport classes
*
* Copyright (c) 2005 - James Bottomley <James.Bottomley@steeleye.com>
*/
#ifndef _TRANSPORT_CLASS_H_
#define _TRANSPORT_CLASS_H_
#include <linux/device.h>
#include <linux/bug.h>
#include <linux/attribute_container.h>
struct transport_container;
struct transport_class {
struct class class;
int (*setup)(struct transport_container *, struct device *,
struct device *);
int (*configure)(struct transport_container *, struct device *,
struct device *);
int (*remove)(struct transport_container *, struct device *,
struct device *);
};
#define DECLARE_TRANSPORT_CLASS(cls, nm, su, rm, cfg) \
struct transport_class cls = { \
.class = { \
.name = nm, \
}, \
.setup = su, \
.remove = rm, \
.configure = cfg, \
}
struct anon_transport_class {
struct transport_class tclass;
struct attribute_container container;
};
#define DECLARE_ANON_TRANSPORT_CLASS(cls, mtch, cfg) \
struct anon_transport_class cls = { \
.tclass = { \
.configure = cfg, \
}, \
. container = { \
.match = mtch, \
}, \
}
#define class_to_transport_class(x) \
container_of(x, struct transport_class, class)
struct transport_container {
struct attribute_container ac;
const struct attribute_group *statistics;
};
#define attribute_container_to_transport_container(x) \
container_of(x, struct transport_container, ac)
void transport_remove_device(struct device *);
int transport_add_device(struct device *);
void transport_setup_device(struct device *);
void transport_configure_device(struct device *);
void transport_destroy_device(struct device *);
static inline int
transport_register_device(struct device *dev)
{
int ret;
transport_setup_device(dev);
ret = transport_add_device(dev);
if (ret)
transport_destroy_device(dev);
return ret;
}
static inline void
transport_unregister_device(struct device *dev)
{
transport_remove_device(dev);
transport_destroy_device(dev);
}
static inline int transport_container_register(struct transport_container *tc)
{
return attribute_container_register(&tc->ac);
}
static inline void transport_container_unregister(struct transport_container *tc)
{
if (unlikely(attribute_container_unregister(&tc->ac)))
BUG();
}
int transport_class_register(struct transport_class *);
int anon_transport_class_register(struct anon_transport_class *);
void transport_class_unregister(struct transport_class *);
void anon_transport_class_unregister(struct anon_transport_class *);
#endif
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