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 */ 91