| Anton Vorontsov | b7ce341 | 2008-04-11 23:06:36 +1000 | [diff] [blame] | 1 | /* |
| 2 | * Generic GPIO API implementation for PowerPC. |
| 3 | * |
| 4 | * Copyright (c) 2007-2008 MontaVista Software, Inc. |
| 5 | * |
| 6 | * Author: Anton Vorontsov <avorontsov@ru.mvista.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | */ |
| 13 | |
| 14 | #ifndef __ASM_POWERPC_GPIO_H |
| 15 | #define __ASM_POWERPC_GPIO_H |
| 16 | |
| 17 | #include <linux/errno.h> |
| 18 | #include <asm-generic/gpio.h> |
| 19 | |
| 20 | #ifdef CONFIG_HAVE_GPIO_LIB |
| 21 | |
| 22 | /* |
| 23 | * We don't (yet) implement inlined/rapid versions for on-chip gpios. |
| 24 | * Just call gpiolib. |
| 25 | */ |
| 26 | static inline int gpio_get_value(unsigned int gpio) |
| 27 | { |
| 28 | return __gpio_get_value(gpio); |
| 29 | } |
| 30 | |
| 31 | static inline void gpio_set_value(unsigned int gpio, int value) |
| 32 | { |
| 33 | __gpio_set_value(gpio, value); |
| 34 | } |
| 35 | |
| 36 | static inline int gpio_cansleep(unsigned int gpio) |
| 37 | { |
| 38 | return __gpio_cansleep(gpio); |
| 39 | } |
| 40 | |
| 41 | /* |
| 42 | * Not implemented, yet. |
| 43 | */ |
| 44 | static inline int gpio_to_irq(unsigned int gpio) |
| 45 | { |
| 46 | return -ENOSYS; |
| 47 | } |
| 48 | |
| 49 | static inline int irq_to_gpio(unsigned int irq) |
| 50 | { |
| 51 | return -EINVAL; |
| 52 | } |
| 53 | |
| 54 | #endif /* CONFIG_HAVE_GPIO_LIB */ |
| 55 | |
| 56 | #endif /* __ASM_POWERPC_GPIO_H */ |