mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-18 17:54:13 +08:00
de0d6dbdbd
Like other subsystems we should be able to define slave devices outside of the w1 directory. To do this we move public facing interface definitions to include/linux/w1.h and rename the internal definition file to w1_internal.h. As w1_family.h and w1_int.h contained almost entirely public driver interface definitions we simply removed these files and moved the remaining definitions into w1_internal.h. With this we can now start to move slave devices out of w1/slaves and into the subsystem based on the function they implement, again like other drivers. Signed-off-by: Andrew F. Davis <afd@ti.com> Reviewed-by: Sebastian Reichel <sre@kernel.org> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
88 lines
3.1 KiB
C
88 lines
3.1 KiB
C
/*
|
|
* 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 */
|