60063497a9
This allows us to move duplicated code in <asm/atomic.h> (atomic_inc_not_zero() for now) to <linux/atomic.h> Signed-off-by: Arun Sharma <asharma@fb.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
/*
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* w1_family.h
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*
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* Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __W1_FAMILY_H
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#define __W1_FAMILY_H
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#include <linux/types.h>
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#include <linux/device.h>
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#include <linux/atomic.h>
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#define W1_FAMILY_DEFAULT 0
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#define W1_FAMILY_SMEM_01 0x01
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#define W1_FAMILY_SMEM_81 0x81
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#define W1_THERM_DS18S20 0x10
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#define W1_COUNTER_DS2423 0x1D
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#define W1_THERM_DS1822 0x22
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#define W1_EEPROM_DS2433 0x23
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#define W1_THERM_DS18B20 0x28
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#define W1_FAMILY_DS2408 0x29
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#define W1_EEPROM_DS2431 0x2D
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#define W1_FAMILY_DS2760 0x30
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#define W1_FAMILY_DS2780 0x32
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#define W1_THERM_DS28EA00 0x42
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#define MAXNAMELEN 32
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struct w1_slave;
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struct w1_family_ops
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{
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int (* add_slave)(struct w1_slave *);
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void (* remove_slave)(struct w1_slave *);
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};
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struct w1_family
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{
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struct list_head family_entry;
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u8 fid;
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struct w1_family_ops *fops;
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atomic_t refcnt;
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};
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extern spinlock_t w1_flock;
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void w1_family_put(struct w1_family *);
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void __w1_family_get(struct w1_family *);
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struct w1_family * w1_family_registered(u8);
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void w1_unregister_family(struct w1_family *);
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int w1_register_family(struct w1_family *);
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#endif /* __W1_FAMILY_H */
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