1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
#-
# Copyright (c) 1998 Nicolas Souchu
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#
#include <sys/bus.h>
INTERFACE iicbus;
#
# Interpret interrupt
#
METHOD int intr {
device_t dev;
int event;
char *buf;
};
#
# iicbus callback
#
METHOD int callback {
device_t dev;
int index;
caddr_t data;
};
#
# Send REPEATED_START condition
#
METHOD int repeated_start {
device_t dev;
u_char slave;
int timeout;
};
#
# Send START condition
#
METHOD int start {
device_t dev;
u_char slave;
int timeout;
};
#
# Send STOP condition
#
METHOD int stop {
device_t dev;
};
#
# Read from I2C bus
#
METHOD int read {
device_t dev;
char *buf;
int len;
int *bytes;
int last;
int delay;
};
#
# Write to the I2C bus
#
METHOD int write {
device_t dev;
char *buf;
int len;
int *bytes;
int timeout;
};
#
# Reset I2C bus
#
METHOD int reset {
device_t dev;
u_char speed;
u_char addr;
u_char *oldaddr;
};
|
