macgpiovar.h revision 330897 
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright 2008 by Nathan Whitehorn. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD: stable/11/sys/powerpc/powermac/macgpiovar.h 330897 2018-03-14 03:19:51Z eadler $
28 */
29
30#ifndef _MACIO_MACGPIOVAR_H_
31#define _MACIO_MACGPIOVAR_H_
32
33/* relative offsets into gpio space */
34#define GPIO_EXTINT_BASE	0x08
35#define GPIO_BASE		0x1a
36
37#define GPIO_EXTINT_COUNT	0x12
38#define GPIO_COUNT		0x11
39
40#define GPIO_LEVELS_0	0x50
41#define GPIO_LEVELS_1	0x54
42
43/* gpio bit definitions */
44#define GPIO_DATA		0x01 /* GPIO data */
45#define GPIO_LEVEL_RO		0x02 /* read-only level on pin */
46#define GPIO_DDR_INPUT		0x00 /* use for input */
47#define GPIO_DDR_OUTPUT		0x04 /* use for output */
48
49uint8_t	macgpio_read(device_t dev);
50void	macgpio_write(device_t dev,uint8_t);
51
52#endif /* _MACIO_MACGPIOVAR_H_ */
53