1 | /* $NetBSD: onewirevar.h,v 1.5 2007/09/05 15:39:22 xtraeme Exp $ */ |
2 | /* $OpenBSD: onewirevar.h,v 1.1 2006/03/04 16:27:03 grange Exp $ */ |
3 | |
4 | /* |
5 | * Copyright (c) 2006 Alexander Yurchenko <grange@openbsd.org> |
6 | * |
7 | * Permission to use, copy, modify, and distribute this software for any |
8 | * purpose with or without fee is hereby granted, provided that the above |
9 | * copyright notice and this permission notice appear in all copies. |
10 | * |
11 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
12 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
13 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
14 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
15 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
16 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
17 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
18 | */ |
19 | |
20 | #ifndef _DEV_ONEWIRE_ONEWIREVAR_H_ |
21 | #define _DEV_ONEWIRE_ONEWIREVAR_H_ |
22 | |
23 | /* |
24 | * 1-Wire bus interface. |
25 | */ |
26 | |
27 | /* Bus master interface */ |
28 | struct onewire_bus { |
29 | void * bus_cookie; |
30 | |
31 | int (*bus_reset)(void *); |
32 | int (*bus_bit)(void *, int); |
33 | int (*bus_read_byte)(void *); |
34 | void (*bus_write_byte)(void *, int); |
35 | int (*bus_triplet)(void *, int); |
36 | }; |
37 | |
38 | /* Bus methods */ |
39 | void onewire_lock(void *); |
40 | void onewire_unlock(void *); |
41 | int onewire_reset(void *); |
42 | int onewire_bit(void *, int); |
43 | int onewire_read_byte(void *); |
44 | void onewire_write_byte(void *, int); |
45 | int onewire_triplet(void *, int); |
46 | void onewire_read_block(void *, void *, int); |
47 | void onewire_write_block(void *, const void *, int); |
48 | void onewire_matchrom(void *, u_int64_t); |
49 | |
50 | /* Bus attachment */ |
51 | struct onewirebus_attach_args { |
52 | struct onewire_bus * oba_bus; |
53 | }; |
54 | |
55 | int onewirebus_print(void *, const char *); |
56 | |
57 | /* Device attachment */ |
58 | struct onewire_attach_args { |
59 | void * oa_onewire; |
60 | u_int64_t oa_rom; |
61 | }; |
62 | |
63 | /* Family matching */ |
64 | struct onewire_matchfam { |
65 | int om_type; |
66 | }; |
67 | |
68 | /* Miscellaneous routines */ |
69 | int onewire_crc(const void *, int); |
70 | const char * onewire_famname(int); |
71 | int onewire_matchbyfam(struct onewire_attach_args *, |
72 | const struct onewire_matchfam *, int); |
73 | |
74 | /* Bus bit-banging */ |
75 | struct onewire_bbops { |
76 | void (*bb_rx)(void *); |
77 | void (*bb_tx)(void *); |
78 | int (*bb_get)(void *); |
79 | void (*bb_set)(void *, int); |
80 | }; |
81 | |
82 | int onewire_bb_reset(const struct onewire_bbops *, void *); |
83 | int onewire_bb_bit(const struct onewire_bbops *, void *, int); |
84 | |
85 | #endif /* !_DEV_ONEWIRE_ONEWIREVAR_H_ */ |
86 | |