73 lines
2.7 KiB
C
73 lines
2.7 KiB
C
/*
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* The OMAP GPIO Controller interface is inspired by pxa2x0_gpio.h
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*
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* Copyright 2003 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Steve C. Woodford for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _ARM_OMAP_OMAP_GPIO_H_
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#define _ARM_OMAP_OMAP_GPIO_H_
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#define GPIO_IN 0x00
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#define GPIO_OUT 0x01
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#define GPIO_IS_IN(n) (((n) & GPIO_OUT) == GPIO_IN)
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#define GPIO_IS_OUT(n) (((n) & GPIO_OUT) == GPIO_OUT)
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/*
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* GPIO pin function query/manipulation functions
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*/
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extern u_int omap_gpio_get_direction(u_int);
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extern void omap_gpio_set_direction(u_int, u_int);
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/*
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* Establish/Disestablish interrupt handlers for GPIO pins
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*/
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extern void *omap_gpio_intr_establish(u_int, int, int,
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const char *, int (*)(void *), void *);
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extern void omap_gpio_intr_disestablish(void *);
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/* Mask/unmask GPIO interrupt, enable/disable sleep wakeups */
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extern void omap_gpio_intr_mask(void *);
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extern void omap_gpio_intr_unmask(void *);
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extern void omap_gpio_intr_wakeup(void *cookie, int enable);
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/*
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* Read/write
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*/
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extern u_int omap_gpio_read(u_int gpio);
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extern void omap_gpio_write(u_int, u_int);
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#endif /* _ARM_OMAP_OMAP_GPIO_H_ */
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