xref: /dragonfly/sys/bus/iicbus/iicbb_if.m (revision 92fc8b5c) 
1#-
2# Copyright (c) 1998 Nicolas Souchu
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
8# 1. Redistributions of source code must retain the above copyright
9#    notice, this list of conditions and the following disclaimer.
10# 2. Redistributions in binary form must reproduce the above copyright
11#    notice, this list of conditions and the following disclaimer in the
12#    documentation and/or other materials provided with the distribution.
13#
14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24# SUCH DAMAGE.
25#
26# $FreeBSD: src/sys/dev/iicbus/iicbb_if.m,v 1.6 2005/01/06 01:42:47 imp Exp $
27# $DragonFly: src/sys/bus/iicbus/iicbb_if.m,v 1.3 2003/11/17 00:54:39 asmodai Exp $
28#
29
30#include <sys/bus.h>
31
32INTERFACE iicbb;
33
34#
35# iicbus callback
36#
37METHOD int callback {
38	device_t dev;
39	int index;
40	caddr_t data;
41};
42
43#
44# Set I2C bus data line
45#
46METHOD void setsda {
47	device_t dev;
48	int val;
49};
50
51#
52# Set I2C bus clock line
53#
54METHOD void setscl {
55	device_t dev;
56	int val;
57};
58
59#
60# Get I2C bus data line
61#
62#
63METHOD int getsda {
64	device_t dev;
65};
66
67#
68# Get I2C bus clock line
69#
70#
71METHOD int getscl {
72	device_t dev;
73};
74
75#
76# Reset interface
77#
78METHOD int reset {
79	device_t dev;
80	u_char speed;
81	u_char addr;
82	u_char *oldaddr;
83};
84