/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (c) 2004 Evgeniy Polyakov <[email protected]> */ #ifndef __W1_H #define __W1_H #include <linux/w1.h> #include <linux/completion.h> #include <linux/mutex.h> #define W1_SLAVE_ACTIVE … #define W1_SLAVE_DETACH … /** * struct w1_async_cmd - execute callback from the w1_process kthread * @async_entry: link entry * @cb: callback function, must list_del and destroy this list before * returning * * When inserted into the w1_master async_list, w1_process will execute * the callback. Embed this into the structure with the command details. */ struct w1_async_cmd { … }; int w1_create_master_attributes(struct w1_master *master); void w1_destroy_master_attributes(struct w1_master *master); void w1_search(struct w1_master *dev, u8 search_type, w1_slave_found_callback cb); void w1_search_devices(struct w1_master *dev, u8 search_type, w1_slave_found_callback cb); /* call w1_unref_slave to release the reference counts w1_search_slave added */ struct w1_slave *w1_search_slave(struct w1_reg_num *id); /* * decrements the reference on sl->master and sl, and cleans up if zero * returns the reference count after it has been decremented */ int w1_unref_slave(struct w1_slave *sl); void w1_slave_found(struct w1_master *dev, u64 rn); void w1_search_process_cb(struct w1_master *dev, u8 search_type, w1_slave_found_callback cb); struct w1_slave *w1_slave_search_device(struct w1_master *dev, struct w1_reg_num *rn); struct w1_master *w1_search_master_id(u32 id); /* Disconnect and reconnect devices in the given family. Used for finding * unclaimed devices after a family has been registered or releasing devices * after a family has been unregistered. Set attach to 1 when a new family * has just been registered, to 0 when it has been unregistered. */ void w1_reconnect_slaves(struct w1_family *f, int attach); int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn); /* 0 success, otherwise EBUSY */ int w1_slave_detach(struct w1_slave *sl); void __w1_remove_master_device(struct w1_master *dev); void w1_family_put(struct w1_family *f); void __w1_family_get(struct w1_family *f); struct w1_family *w1_family_registered(u8 fid); extern struct device_driver w1_master_driver; extern struct device w1_master_device; extern int w1_max_slave_count; extern int w1_max_slave_ttl; extern struct list_head w1_masters; extern struct mutex w1_mlock; extern spinlock_t w1_flock; int w1_process_callbacks(struct w1_master *dev); int w1_process(void *data); #endif /* __W1_H */
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