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_THERM_DS1825		0x3B
44#define W1_FAMILY_DS2781	0x3D
45#define W1_THERM_DS28EA00	0x42
46
47#define MAXNAMELEN		32
48
49struct w1_slave;
50
51/**
52 * struct w1_family_ops - operations for a family type
53 * @add_slave: add_slave
54 * @remove_slave: remove_slave
55 * @groups: sysfs group
56 */
57struct w1_family_ops
58{
59	int  (* add_slave)(struct w1_slave *);
60	void (* remove_slave)(struct w1_slave *);
61	const struct attribute_group **groups;
62};
63
64/**
65 * struct w1_family - reference counted family structure.
66 * @family_entry:	family linked list
67 * @fid:		8 bit family identifier
68 * @fops:		operations for this family
69 * @refcnt:		reference counter
70 */
71struct w1_family
72{
73	struct list_head	family_entry;
74	u8			fid;
75
76	struct w1_family_ops	*fops;
77
78	atomic_t		refcnt;
79};
80
81extern spinlock_t w1_flock;
82
83void w1_family_put(struct w1_family *);
84void __w1_family_get(struct w1_family *);
85struct w1_family * w1_family_registered(u8);
86void w1_unregister_family(struct w1_family *);
87int w1_register_family(struct w1_family *);
88
89#endif /* __W1_FAMILY_H */