1 /*- 2 * Copyright 2008 by Nathan Whitehorn. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 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. 12 * 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 23 * SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 28 #ifndef _MACIO_MACGPIOVAR_H_ 29 #define _MACIO_MACGPIOVAR_H_ 30 31 /* relative offsets into gpio space */ 32 #define GPIO_EXTINT_BASE 0x08 33 #define GPIO_BASE 0x1a 34 35 #define GPIO_EXTINT_COUNT 0x12 36 #define GPIO_COUNT 0x11 37 38 #define GPIO_LEVELS_0 0x50 39 #define GPIO_LEVELS_1 0x54 40 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 */ 46 47 uint8_t macgpio_read(device_t dev); 48 void macgpio_write(device_t dev,uint8_t); 49 50 #endif /* _MACIO_MACGPIOVAR_H_ */ 51