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 * $FreeBSD$ 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 49 uint8_t macgpio_read(device_t dev); 50 void macgpio_write(device_t dev,uint8_t); 51 52 #endif /* _MACIO_MACGPIOVAR_H_ */ 53