1/* 2 * FILE NAME au1000_gpio.h 3 * 4 * BRIEF MODULE DESCRIPTION 5 * API to Alchemy Au1000 GPIO device. 6 * 7 * Author: MontaVista Software, Inc. <source@mvista.com> 8 * Steve Longerbeam <stevel@mvista.com> 9 * 10 * Copyright 2001 MontaVista Software Inc. 11 * 12 * This program is free software; you can redistribute it and/or modify it 13 * under the terms of the GNU General Public License as published by the 14 * Free Software Foundation; either version 2 of the License, or (at your 15 * option) any later version. 16 * 17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 20 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 23 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 24 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * You should have received a copy of the GNU General Public License along 29 * with this program; if not, write to the Free Software Foundation, Inc., 30 * 675 Mass Ave, Cambridge, MA 02139, USA. 31 */ 32 33#ifndef __AU1000_GPIO_H 34#define __AU1000_GPIO_H 35 36#include <linux/ioctl.h> 37 38#define AU1000GPIO_IOC_MAGIC 'A' 39 40#define AU1000GPIO_IN _IOR (AU1000GPIO_IOC_MAGIC, 0, int) 41#define AU1000GPIO_SET _IOW (AU1000GPIO_IOC_MAGIC, 1, int) 42#define AU1000GPIO_CLEAR _IOW (AU1000GPIO_IOC_MAGIC, 2, int) 43#define AU1000GPIO_OUT _IOW (AU1000GPIO_IOC_MAGIC, 3, int) 44#define AU1000GPIO_TRISTATE _IOW (AU1000GPIO_IOC_MAGIC, 4, int) 45#define AU1000GPIO_AVAIL_MASK _IOR (AU1000GPIO_IOC_MAGIC, 5, int) 46 47#ifdef __KERNEL__ 48extern u32 get_au1000_avail_gpio_mask(void); 49extern int au1000gpio_tristate(u32 data); 50extern int au1000gpio_in(u32 *data); 51extern int au1000gpio_set(u32 data); 52extern int au1000gpio_clear(u32 data); 53extern int au1000gpio_out(u32 data); 54#endif 55 56#endif 57