blob: 1e2ac40c2c14a3c93894a1a15c1e741a8416b6ac [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Evgeniy Polyakov77859252005-05-20 22:33:25 +04002 * w1_family.h
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 *
4 * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Evgeniy Polyakov77859252005-05-20 22:33:25 +04005 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#ifndef __W1_FAMILY_H
23#define __W1_FAMILY_H
24
25#include <linux/types.h>
26#include <linux/device.h>
27#include <asm/atomic.h>
28
29#define W1_FAMILY_DEFAULT 0
Evgeniy Polyakov85e941c2005-05-02 14:26:42 +040030#define W1_FAMILY_SMEM_01 0x01
31#define W1_FAMILY_SMEM_81 0x81
Evgeniy Polyakov718a5382005-04-17 22:58:14 +040032#define W1_THERM_DS18S20 0x10
33#define W1_THERM_DS1822 0x22
Evgeniy Polyakova3d65f22005-08-11 17:27:50 +040034#define W1_EEPROM_DS2433 0x23
Evgeniy Polyakov718a5382005-04-17 22:58:14 +040035#define W1_THERM_DS18B20 0x28
Linus Torvalds1da177e2005-04-16 15:20:36 -070036
37#define MAXNAMELEN 32
38
Evgeniy Polyakovd2a4ef62005-08-11 17:27:50 +040039struct w1_slave;
40
Linus Torvalds1da177e2005-04-16 15:20:36 -070041struct w1_family_ops
42{
Evgeniy Polyakovd2a4ef62005-08-11 17:27:50 +040043 int (* add_slave)(struct w1_slave *);
44 void (* remove_slave)(struct w1_slave *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070045};
46
47struct w1_family
48{
49 struct list_head family_entry;
50 u8 fid;
Evgeniy Polyakov77859252005-05-20 22:33:25 +040051
Linus Torvalds1da177e2005-04-16 15:20:36 -070052 struct w1_family_ops *fops;
Evgeniy Polyakov77859252005-05-20 22:33:25 +040053
Linus Torvalds1da177e2005-04-16 15:20:36 -070054 atomic_t refcnt;
55 u8 need_exit;
56};
57
58extern spinlock_t w1_flock;
59
Linus Torvalds1da177e2005-04-16 15:20:36 -070060void w1_family_put(struct w1_family *);
61void __w1_family_get(struct w1_family *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070062struct w1_family * w1_family_registered(u8);
63void w1_unregister_family(struct w1_family *);
64int w1_register_family(struct w1_family *);
Evgeniy Polyakov12003372006-03-23 19:11:58 +030065void w1_reconnect_slaves(struct w1_family *f);
Linus Torvalds1da177e2005-04-16 15:20:36 -070066
67#endif /* __W1_FAMILY_H */