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_BQ27000 0x01 31#define W1_FAMILY_SMEM_01 0x01 32#define W1_FAMILY_SMEM_81 0x81 33#define W1_THERM_DS18S20 0x10 34#define W1_FAMILY_DS28E04 0x1C 35#define W1_COUNTER_DS2423 0x1D 36#define W1_THERM_DS1822 0x22 37#define W1_EEPROM_DS2433 0x23 38#define W1_THERM_DS18B20 0x28 39#define W1_FAMILY_DS2408 0x29 40#define W1_EEPROM_DS2431 0x2D 41#define W1_FAMILY_DS2760 0x30 42#define W1_FAMILY_DS2780 0x32 43#define W1_FAMILY_DS2413 0x3A 44#define W1_FAMILY_DS2406 0x12 45#define W1_THERM_DS1825 0x3B 46#define W1_FAMILY_DS2781 0x3D 47#define W1_THERM_DS28EA00 0x42 48 49#define MAXNAMELEN 32 50 51struct w1_slave; 52 53/** 54 * struct w1_family_ops - operations for a family type 55 * @add_slave: add_slave 56 * @remove_slave: remove_slave 57 * @groups: sysfs group 58 */ 59struct w1_family_ops 60{ 61 int (* add_slave)(struct w1_slave *); 62 void (* remove_slave)(struct w1_slave *); 63 const struct attribute_group **groups; 64}; 65 66/** 67 * struct w1_family - reference counted family structure. 68 * @family_entry: family linked list 69 * @fid: 8 bit family identifier 70 * @fops: operations for this family 71 * @refcnt: reference counter 72 */ 73struct w1_family 74{ 75 struct list_head family_entry; 76 u8 fid; 77 78 struct w1_family_ops *fops; 79 80 atomic_t refcnt; 81}; 82 83extern spinlock_t w1_flock; 84 85void w1_family_put(struct w1_family *); 86void __w1_family_get(struct w1_family *); 87struct w1_family * w1_family_registered(u8); 88void w1_unregister_family(struct w1_family *); 89int w1_register_family(struct w1_family *); 90 91#endif /* __W1_FAMILY_H */ 92