| /* |
| * Copyright (c) 2004 Evgeniy Polyakov <zbr@ioremap.net> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef __W1_H |
| #define __W1_H |
| |
| #include <linux/w1.h> |
| |
| #include <linux/completion.h> |
| #include <linux/mutex.h> |
| |
| #define W1_SLAVE_ACTIVE 0 |
| #define W1_SLAVE_DETACH 1 |
| |
| /** |
| * 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 { |
| struct list_head async_entry; |
| void (*cb)(struct w1_master *dev, struct w1_async_cmd *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 */ |