| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 1 | /* |
| 2 | * arch/arm/mach-ns9xxx/include/mach/gpio.h |
| 3 | * |
| 4 | * Copyright (C) 2007 by Digi International Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of the GNU General Public License version 2 as published by |
| 9 | * the Free Software Foundation. |
| 10 | */ |
| 11 | #ifndef __ASM_ARCH_GPIO_H |
| 12 | #define __ASM_ARCH_GPIO_H |
| 13 | |
| 14 | #include <asm/errno.h> |
| 15 | |
| 16 | int gpio_request(unsigned gpio, const char *label); |
| 17 | |
| 18 | void gpio_free(unsigned gpio); |
| 19 | |
| 20 | int ns9xxx_gpio_configure(unsigned gpio, int inv, int func); |
| 21 | |
| 22 | int gpio_direction_input(unsigned gpio); |
| 23 | |
| 24 | int gpio_direction_output(unsigned gpio, int value); |
| 25 | |
| 26 | int gpio_get_value(unsigned gpio); |
| 27 | |
| 28 | void gpio_set_value(unsigned gpio, int value); |
| 29 | |
| 30 | /* |
| 31 | * ns9xxx can use gpio pins to trigger an irq, but it's not generic |
| 32 | * enough to be supported by the gpio_to_irq/irq_to_gpio interface |
| 33 | */ |
| 34 | static inline int gpio_to_irq(unsigned gpio) |
| 35 | { |
| 36 | return -EINVAL; |
| 37 | } |
| 38 | |
| 39 | static inline int irq_to_gpio(unsigned irq) |
| 40 | { |
| 41 | return -EINVAL; |
| 42 | } |
| 43 | |
| 44 | /* get the cansleep() stubs */ |
| 45 | #include <asm-generic/gpio.h> |
| 46 | |
| 47 | #endif /* ifndef __ASM_ARCH_GPIO_H */ |