From 689f2a01e68c0033f59055dd816ff27dc51f9dcc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 30 Sep 2007 20:35:09 +0100 Subject: [ARM] 4590/1: ns9xxx: add gpio handling functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Russell King --- include/asm-arm/arch-ns9xxx/gpio.h | 47 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 include/asm-arm/arch-ns9xxx/gpio.h (limited to 'include/asm-arm') diff --git a/include/asm-arm/arch-ns9xxx/gpio.h b/include/asm-arm/arch-ns9xxx/gpio.h new file mode 100644 index 00000000000..adbca08583c --- /dev/null +++ b/include/asm-arm/arch-ns9xxx/gpio.h @@ -0,0 +1,47 @@ +/* + * include/asm-arm/arch-ns9xxx/gpio.h + * + * Copyright (C) 2007 by Digi International Inc. + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. +*/ +#ifndef __ASM_ARCH_GPIO_H +#define __ASM_ARCH_GPIO_H + +#include + +int gpio_request(unsigned gpio, const char *label); + +void gpio_free(unsigned gpio); + +int ns9xxx_gpio_configure(unsigned gpio, int inv, int func); + +int gpio_direction_input(unsigned gpio); + +int gpio_direction_output(unsigned gpio, int value); + +int gpio_get_value(unsigned gpio); + +void gpio_set_value(unsigned gpio, int value); + +/* + * ns9xxx can use gpio pins to trigger an irq, but it's not generic + * enough to be supported by the gpio_to_irq/irq_to_gpio interface + */ +static inline int gpio_to_irq(unsigned gpio) +{ + return -EINVAL; +} + +static inline int irq_to_gpio(unsigned irq) +{ + return -EINVAL; +} + +/* get the cansleep() stubs */ +#include + +#endif /* ifndef __ASM_ARCH_GPIO_H */ -- cgit v1.2.3