689f2a01e6
This implementation conforms to the general GPIO API introduced in 2.6.21. This patch was signed-of by David Brownell before I exported the functions using EXPORT_SYMBOL. Signed-off-by: Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/*
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* include/asm-arm/arch-ns9xxx/gpio.h
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*
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* Copyright (C) 2007 by Digi International Inc.
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*/
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#ifndef __ASM_ARCH_GPIO_H
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#define __ASM_ARCH_GPIO_H
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#include <asm/errno.h>
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int gpio_request(unsigned gpio, const char *label);
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void gpio_free(unsigned gpio);
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int ns9xxx_gpio_configure(unsigned gpio, int inv, int func);
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int gpio_direction_input(unsigned gpio);
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int gpio_direction_output(unsigned gpio, int value);
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int gpio_get_value(unsigned gpio);
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void gpio_set_value(unsigned gpio, int value);
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/*
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* ns9xxx can use gpio pins to trigger an irq, but it's not generic
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* enough to be supported by the gpio_to_irq/irq_to_gpio interface
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*/
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static inline int gpio_to_irq(unsigned gpio)
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{
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return -EINVAL;
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}
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static inline int irq_to_gpio(unsigned irq)
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{
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return -EINVAL;
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}
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/* get the cansleep() stubs */
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#include <asm-generic/gpio.h>
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#endif /* ifndef __ASM_ARCH_GPIO_H */
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