xref: /freebsd/sys/dev/gpio/dwgpio/dwgpio_if.m (revision 5f4c09dd85bff675e0ca63c55ea3c517e0fddfcc)
1#-
2# Copyright (c) 2019 Ruslan Bukin <br@bsdpad.com>
3#
4# This software was developed by SRI International and the University of
5# Cambridge Computer Laboratory (Department of Computer Science and
6# Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the
7# DARPA SSITH research programme.
8#
9# Redistribution and use in source and binary forms, with or without
10# modification, are permitted provided that the following conditions
11# are met:
12# 1. Redistributions of source code must retain the above copyright
13#    notice, this list of conditions and the following disclaimer.
14# 2. Redistributions in binary form must reproduce the above copyright
15#    notice, this list of conditions and the following disclaimer in the
16#    documentation and/or other materials provided with the distribution.
17#
18# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28# SUCH DAMAGE.
29#
30#
31
32#include <machine/bus.h>
33
34INTERFACE dwgpio;
35
36#
37# GPIO write
38#
39METHOD int write {
40	device_t		dev;
41	bus_size_t		offset;
42	int			val;
43};
44
45#
46# GPIO read
47#
48METHOD int read {
49	device_t		dev;
50	bus_size_t		offset;
51};
52