xref: /freebsd/sys/dev/gpio/dwgpio/dwgpio_if.m (revision e17f5b1d)
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# $FreeBSD$
31#
32
33#include <machine/bus.h>
34
35INTERFACE dwgpio;
36
37#
38# GPIO write
39#
40METHOD int write {
41	device_t		dev;
42	bus_size_t		offset;
43	int			val;
44};
45
46#
47# GPIO read
48#
49METHOD int read {
50	device_t		dev;
51	bus_size_t		offset;
52};
53