2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright 2008 by Nathan Whitehorn. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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
30 #ifndef _MACIO_MACGPIOVAR_H_
31 #define _MACIO_MACGPIOVAR_H_
33 /* relative offsets into gpio space */
34 #define GPIO_EXTINT_BASE 0x08
35 #define GPIO_BASE 0x1a
37 #define GPIO_EXTINT_COUNT 0x12
38 #define GPIO_COUNT 0x11
40 #define GPIO_LEVELS_0 0x50
41 #define GPIO_LEVELS_1 0x54
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 */
49 uint8_t macgpio_read(device_t dev);
50 void macgpio_write(device_t dev,uint8_t);
52 #endif /* _MACIO_MACGPIOVAR_H_ */