Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[firefly-linux-kernel-4.4.55.git] / drivers / w1 / w1_family.h
1 /*
2  *      w1_family.h
3  *
4  * Copyright (c) 2004 Evgeniy Polyakov <zbr@ioremap.net>
5  *
6  *
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 <linux/atomic.h>
28
29 #define W1_FAMILY_DEFAULT       0
30 #define W1_FAMILY_SMEM_01       0x01
31 #define W1_FAMILY_SMEM_81       0x81
32 #define W1_THERM_DS18S20        0x10
33 #define W1_FAMILY_DS28E04       0x1C
34 #define W1_COUNTER_DS2423       0x1D
35 #define W1_THERM_DS1822         0x22
36 #define W1_EEPROM_DS2433        0x23
37 #define W1_THERM_DS18B20        0x28
38 #define W1_FAMILY_DS2408        0x29
39 #define W1_EEPROM_DS2431        0x2D
40 #define W1_FAMILY_DS2760        0x30
41 #define W1_FAMILY_DS2780        0x32
42 #define W1_FAMILY_DS2413        0x3A
43 #define W1_FAMILY_DS2406        0x12
44 #define W1_THERM_DS1825         0x3B
45 #define W1_FAMILY_DS2781        0x3D
46 #define W1_THERM_DS28EA00       0x42
47
48 #define MAXNAMELEN              32
49
50 struct w1_slave;
51
52 /**
53  * struct w1_family_ops - operations for a family type
54  * @add_slave: add_slave
55  * @remove_slave: remove_slave
56  * @groups: sysfs group
57  */
58 struct w1_family_ops
59 {
60         int  (* add_slave)(struct w1_slave *);
61         void (* remove_slave)(struct w1_slave *);
62         const struct attribute_group **groups;
63 };
64
65 /**
66  * struct w1_family - reference counted family structure.
67  * @family_entry:       family linked list
68  * @fid:                8 bit family identifier
69  * @fops:               operations for this family
70  * @refcnt:             reference counter
71  */
72 struct w1_family
73 {
74         struct list_head        family_entry;
75         u8                      fid;
76
77         struct w1_family_ops    *fops;
78
79         atomic_t                refcnt;
80 };
81
82 extern spinlock_t w1_flock;
83
84 void w1_family_put(struct w1_family *);
85 void __w1_family_get(struct w1_family *);
86 struct w1_family * w1_family_registered(u8);
87 void w1_unregister_family(struct w1_family *);
88 int w1_register_family(struct w1_family *);
89
90 #endif /* __W1_FAMILY_H */