2 * Copyright (c) 2004 Evgeniy Polyakov <zbr@ioremap.net>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
18 #include <linux/types.h>
19 #include <linux/device.h>
20 #include <linux/atomic.h>
22 #define W1_FAMILY_DEFAULT 0
23 #define W1_FAMILY_BQ27000 0x01
24 #define W1_FAMILY_SMEM_01 0x01
25 #define W1_FAMILY_SMEM_81 0x81
26 #define W1_FAMILY_DS2405 0x05
27 #define W1_THERM_DS18S20 0x10
28 #define W1_FAMILY_DS28E04 0x1C
29 #define W1_COUNTER_DS2423 0x1D
30 #define W1_THERM_DS1822 0x22
31 #define W1_EEPROM_DS2433 0x23
32 #define W1_FAMILY_DS2438 0x26
33 #define W1_THERM_DS18B20 0x28
34 #define W1_FAMILY_DS2408 0x29
35 #define W1_EEPROM_DS2431 0x2D
36 #define W1_FAMILY_DS2760 0x30
37 #define W1_FAMILY_DS2780 0x32
38 #define W1_FAMILY_DS2413 0x3A
39 #define W1_FAMILY_DS2406 0x12
40 #define W1_THERM_DS1825 0x3B
41 #define W1_FAMILY_DS2781 0x3D
42 #define W1_THERM_DS28EA00 0x42
49 * struct w1_family_ops - operations for a family type
50 * @add_slave: add_slave
51 * @remove_slave: remove_slave
52 * @groups: sysfs group
56 int (* add_slave)(struct w1_slave *);
57 void (* remove_slave)(struct w1_slave *);
58 const struct attribute_group **groups;
62 * struct w1_family - reference counted family structure.
63 * @family_entry: family linked list
64 * @fid: 8 bit family identifier
65 * @fops: operations for this family
66 * @refcnt: reference counter
70 struct list_head family_entry;
73 struct w1_family_ops *fops;
78 extern spinlock_t w1_flock;
80 void w1_family_put(struct w1_family *);
81 void __w1_family_get(struct w1_family *);
82 struct w1_family * w1_family_registered(u8);
83 void w1_unregister_family(struct w1_family *);
84 int w1_register_family(struct w1_family *);
87 * module_w1_driver() - Helper macro for registering a 1-Wire families
88 * @__w1_family: w1_family struct
90 * Helper macro for 1-Wire families which do not do anything special in module
91 * init/exit. This eliminates a lot of boilerplate. Each module may only
92 * use this macro once, and calling it replaces module_init() and module_exit()
94 #define module_w1_family(__w1_family) \
95 module_driver(__w1_family, w1_register_family, \
98 #endif /* __W1_FAMILY_H */