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/*
* Copyright (c) 2004 Evgeniy Polyakov <zbr@ioremap.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __W1_FAMILY_H
#define __W1_FAMILY_H
#include <linux/types.h>
#include <linux/device.h>
#include <linux/atomic.h>
#define W1_FAMILY_DEFAULT 0
#define W1_FAMILY_BQ27000 0x01
#define W1_FAMILY_SMEM_01 0x01
#define W1_FAMILY_SMEM_81 0x81
#define W1_FAMILY_DS2405 0x05
#define W1_THERM_DS18S20 0x10
#define W1_FAMILY_DS28E04 0x1C
#define W1_COUNTER_DS2423 0x1D
#define W1_THERM_DS1822 0x22
#define W1_EEPROM_DS2433 0x23
#define W1_THERM_DS18B20 0x28
#define W1_FAMILY_DS2408 0x29
#define W1_EEPROM_DS2431 0x2D
#define W1_FAMILY_DS2760 0x30
#define W1_FAMILY_DS2780 0x32
#define W1_FAMILY_DS2413 0x3A
#define W1_FAMILY_DS2406 0x12
#define W1_THERM_DS1825 0x3B
#define W1_FAMILY_DS2781 0x3D
#define W1_THERM_DS28EA00 0x42
#define MAXNAMELEN 32
struct w1_slave;
/**
* struct w1_family_ops - operations for a family type
* @add_slave: add_slave
* @remove_slave: remove_slave
* @groups: sysfs group
*/
struct w1_family_ops
{
int (* add_slave)(struct w1_slave *);
void (* remove_slave)(struct w1_slave *);
const struct attribute_group **groups;
};
/**
* struct w1_family - reference counted family structure.
* @family_entry: family linked list
* @fid: 8 bit family identifier
* @fops: operations for this family
* @refcnt: reference counter
*/
struct w1_family
{
struct list_head family_entry;
u8 fid;
struct w1_family_ops *fops;
atomic_t refcnt;
};
extern spinlock_t w1_flock;
void w1_family_put(struct w1_family *);
void __w1_family_get(struct w1_family *);
struct w1_family * w1_family_registered(u8);
void w1_unregister_family(struct w1_family *);
int w1_register_family(struct w1_family *);
/**
* module_w1_driver() - Helper macro for registering a 1-Wire families
* @__w1_family: w1_family struct
*
* Helper macro for 1-Wire families which do not do anything special in module
* init/exit. This eliminates a lot of boilerplate. Each module may only
* use this macro once, and calling it replaces module_init() and module_exit()
*/
#define module_w1_family(__w1_family) \
module_driver(__w1_family, w1_register_family, \
w1_unregister_family)
#endif /* __W1_FAMILY_H */
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