mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-31 16:38:12 +00:00
939fc83229
The helper macro module_w1_family can be used in module drivers that only register a w1 driver in their module init functions. Add this macro and use it in all applicable drivers. Link: http://lkml.kernel.org/r/20160531204313.20979-2-afd@ti.com Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
103 lines
2.8 KiB
C
103 lines
2.8 KiB
C
/*
|
|
* w1_family.h
|
|
*
|
|
* 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#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_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 */
|