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