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