25 struct backend {  struct
28 	/* Backend private data */
43 	 * @context:	The backend context pointer  argument
44 	 * @data:	Additional backend-implementation-specifc data
47 	int 	(*init)(struct backend *backend, void *data);
51 	 * @context:	The backend context pointer
53 	void 	(*free)(struct backend *backend);
65 	int64_t (*copy)(struct backend *backend, uint32_t offset, void *mem,
80 	 int 	(*set_bytemap)(struct backend *backend, uint32_t offset,
85 	 * @context:	The backend context pointer
91 	int 	(*erase)(struct backend *backend, uint32_t offset,
95 	 * @context:	The backend context pointer
102 	int 	(*write)(struct backend *backend, uint32_t offset, void *buf,
107 	 * @context:	The backend context pointer
115 	int 	(*validate)(struct backend *backend,
120 	 * @context:    The backend context pointer
126 	int	(*reset)(struct backend *backend, void *buf, uint32_t count);
130 	 * @context:	The backend context pointer
136 	int	(*align_offset)(struct backend *backend, uint32_t *offset,
141 static inline int backend_init(struct backend *master, struct backend *with,  in backend_init()
171 static inline void backend_free(struct backend *backend)  in backend_free()  argument
173 	assert(backend);  in backend_free()
175 	if (backend->ops->free)  in backend_free()
176 		backend->ops->free(backend);  in backend_free()
179 static inline int64_t backend_copy(struct backend *backend,  in backend_copy()  argument
182 	assert(backend);  in backend_copy()
183 	assert(backend->ops->copy);  in backend_copy()
184 	return backend->ops->copy(backend, offset, mem, size);  in backend_copy()
188 static inline int backend_set_bytemap(struct backend *backend,  in backend_set_bytemap()  argument
192 	assert(backend);  in backend_set_bytemap()
194 	if (backend->ops->set_bytemap)  in backend_set_bytemap()
195 		return backend->ops->set_bytemap(backend, offset, count, val);  in backend_set_bytemap()
200 static inline int backend_erase(struct backend *backend, uint32_t offset,  in backend_erase()  argument
203 	assert(backend);  in backend_erase()
204 	if (backend->ops->erase)  in backend_erase()
205 		return backend->ops->erase(backend, offset, count);  in backend_erase()
210 static inline int backend_write(struct backend *backend, uint32_t offset,  in backend_write()  argument
213 	assert(backend);  in backend_write()
214 	assert(backend->ops->write);  in backend_write()
215 	return backend->ops->write(backend, offset, buf, count);  in backend_write()
218 static inline int backend_validate(struct backend *backend,  in backend_validate()  argument
221 	assert(backend);  in backend_validate()
223 	if (backend->ops->validate)  in backend_validate()
224 		return backend->ops->validate(backend, offset, size, ro);  in backend_validate()
229 static inline int backend_reset(struct backend *backend, void *buf,  in backend_reset()  argument
232 	assert(backend);  in backend_reset()
233 	assert(backend->ops->reset);  in backend_reset()
234 	return backend->ops->reset(backend, buf, count);  in backend_reset()
238 static inline int backend_align_offset(struct backend *backend, uint32_t *offset, uint32_t window_s…  in backend_align_offset()  argument
240 	assert(backend);  in backend_align_offset()
241 	if (backend->ops->align_offset){  in backend_align_offset()
242 		return  backend->ops->align_offset(backend, offset, window_size);  in backend_align_offset()
257 struct backend backend_get_mtd(void);
258 int backend_probe_mtd(struct backend *master, const char *path);
260 struct backend backend_get_file(void);
261 int backend_probe_file(struct backend *master, const char *path);
266 struct backend backend_get_vpnor(void);
268 int backend_probe_vpnor(struct backend *master,
271 static inline struct backend backend_get_vpnor(void)  in backend_get_vpnor()
273 	struct backend be = { NULL, NULL, 0, 0, 0 };  in backend_get_vpnor()
278 static inline int backend_probe_vpnor(struct backend *master __attribute__((unused)),  in backend_probe_vpnor()