86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
/* $NetBSD: onewirevar.h,v 1.5 2007/09/05 15:39:22 xtraeme Exp $ */
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/* $OpenBSD: onewirevar.h,v 1.1 2006/03/04 16:27:03 grange Exp $ */
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/*
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* Copyright (c) 2006 Alexander Yurchenko <grange@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _DEV_ONEWIRE_ONEWIREVAR_H_
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#define _DEV_ONEWIRE_ONEWIREVAR_H_
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/*
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* 1-Wire bus interface.
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*/
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/* Bus master interface */
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struct onewire_bus {
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void * bus_cookie;
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int (*bus_reset)(void *);
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int (*bus_bit)(void *, int);
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int (*bus_read_byte)(void *);
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void (*bus_write_byte)(void *, int);
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int (*bus_triplet)(void *, int);
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};
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/* Bus methods */
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void onewire_lock(void *);
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void onewire_unlock(void *);
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int onewire_reset(void *);
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int onewire_bit(void *, int);
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int onewire_read_byte(void *);
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void onewire_write_byte(void *, int);
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int onewire_triplet(void *, int);
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void onewire_read_block(void *, void *, int);
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void onewire_write_block(void *, const void *, int);
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void onewire_matchrom(void *, u_int64_t);
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/* Bus attachment */
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struct onewirebus_attach_args {
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struct onewire_bus * oba_bus;
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};
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int onewirebus_print(void *, const char *);
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/* Device attachment */
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struct onewire_attach_args {
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void * oa_onewire;
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u_int64_t oa_rom;
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};
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/* Family matching */
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struct onewire_matchfam {
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int om_type;
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};
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/* Miscellaneous routines */
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int onewire_crc(const void *, int);
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const char * onewire_famname(int);
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int onewire_matchbyfam(struct onewire_attach_args *,
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const struct onewire_matchfam *, int);
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/* Bus bit-banging */
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struct onewire_bbops {
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void (*bb_rx)(void *);
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void (*bb_tx)(void *);
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int (*bb_get)(void *);
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void (*bb_set)(void *, int);
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};
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int onewire_bb_reset(const struct onewire_bbops *, void *);
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int onewire_bb_bit(const struct onewire_bbops *, void *, int);
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#endif /* !_DEV_ONEWIRE_ONEWIREVAR_H_ */
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