/* $OpenBSD: sa11x0_gpio.h,v 1.5 2005/04/08 21:50:37 uwe Exp $ */ /* $wasabi$ */ /* * Copyright 2003 Wasabi Systems, Inc. * All rights reserved. * * Written by Steve C. Woodford for Wasabi Systems, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _SA11X0_GPIO_H #define _SA11X0_GPIO_H /* * If you want to fiddle with GPIO registers before the * driver has been autoconfigured (e.g. from initarm()), * call this function with the virtual address of the * GPIO controller's registers */ void sa11x0_gpio_bootstrap(vaddr_t); /* GPIO pin function query/manipulation functions */ #define SAGPIO_FUNC_GPIO 0x00 #define SAGPIO_FUNC_ALT 0x01 u_int sa11x0_gpio_get_function(u_int); u_int sa11x0_gpio_set_function(u_int, u_int); /* level */ #define SAGPIO_LEVEL_LOW 0x00 #define SAGPIO_LEVEL_HIGH 0x01 int sa11x0_gpio_get_bit(u_int gpio); void sa11x0_gpio_set_bit(u_int gpio); void sa11x0_gpio_clear_bit(u_int gpio); /* direction */ #define SAGPIO_DIR_INPUT 0x00 #define SAGPIO_DIR_OUTPUT 0x01 void sa11x0_gpio_set_dir(u_int gpio, int dir); u_int sa11x0_get_dir(u_int gpio); /* clear edge detect */ void sa11x0_gpio_clear_intr(u_int gpio); /* * Establish/Disestablish interrupt handlers for GPIO pins */ void *sa11x0_gpio_intr_establish(u_int, int, int, int (*)(void *), void *, char *); void sa11x0_gpio_intr_disestablish(void *); const char *sa11x0_gpio_intr_string(void *); void sa11x0_gpio_intr_mask(void *); void sa11x0_gpio_intr_unmask(void *); #endif /* _SA11X0_GPIO_H */