freebsd-skq/sys/arm/at91/at91_piovar.h
Warner Losh 5385196376 Provide hooks into the GPIO lines and the ability to set/clear
interrupts from them.  This should be more generalized, but is
sufficient for now.

Submitted by:	Hans Petter Selasky
2008-08-19 22:17:14 +00:00

44 lines
2.2 KiB
C

/*-
* Copyright (c) 2006 M. Warner Losh. All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
*/
/* $FreeBSD$ */
#ifndef ARM_AT91_AT91_PIOVAR_H
#define ARM_AT91_AT91_PIOVAR_H
void at91_pio_use_periph_a(uint32_t pio, uint32_t periph_a_mask, int use_pullup);
void at91_pio_use_periph_b(uint32_t pio, uint32_t periph_b_mask, int use_pullup);
void at91_pio_use_gpio(uint32_t pio, uint32_t gpio_mask);
void at91_pio_gpio_input(uint32_t pio, uint32_t input_enable_mask);
void at91_pio_gpio_output(uint32_t pio, uint32_t output_enable_mask,
int use_pullup);
void at91_pio_gpio_set(uint32_t pio, uint32_t data_mask);
void at91_pio_gpio_clear(uint32_t pio, uint32_t data_mask);
uint8_t at91_pio_gpio_get(uint32_t pio, uint32_t data_mask);
void at91_pio_gpio_set_deglitch(uint32_t pio, uint32_t data_mask, int use_deglitch);
void at91_pio_gpio_set_interrupt(uint32_t pio, uint32_t data_mask, int enable_interrupt);
uint32_t at91_pio_gpio_clear_interrupt(uint32_t pio);
#endif /* ARM_AT91_AT91_PIOVAR_H */