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