| /* |
| * OpenRISC Linux |
| * |
| * Linux architectural port borrowing liberally from similar works of |
| * others. All original copyrights apply as per the original source |
| * declaration. |
| * |
| * OpenRISC implementation: |
| * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> |
| * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> |
| * et al. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| */ |
| |
| #ifndef __ASM_OPENRISC_GPIO_H |
| #define __ASM_OPENRISC_GPIO_H |
| |
| #include <linux/errno.h> |
| #include <asm-generic/gpio.h> |
| |
| #ifdef CONFIG_GPIOLIB |
| |
| /* |
| * OpenRISC (or1k) does not have on-chip GPIO's so there is not really |
| * any standardized implementation that makes sense here. If passing |
| * through gpiolib becomes a bottleneck then it may make sense, on a |
| * case-by-case basis, to implement these inlined/rapid versions. |
| * |
| * Just call gpiolib. |
| */ |
| static inline int gpio_get_value(unsigned int gpio) |
| { |
| return __gpio_get_value(gpio); |
| } |
| |
| static inline void gpio_set_value(unsigned int gpio, int value) |
| { |
| __gpio_set_value(gpio, value); |
| } |
| |
| static inline int gpio_cansleep(unsigned int gpio) |
| { |
| return __gpio_cansleep(gpio); |
| } |
| |
| /* |
| * Not implemented, yet. |
| */ |
| static inline int gpio_to_irq(unsigned int gpio) |
| { |
| return -ENOSYS; |
| } |
| |
| static inline int irq_to_gpio(unsigned int irq) |
| { |
| return -EINVAL; |
| } |
| |
| #endif /* CONFIG_GPIOLIB */ |
| |
| #endif /* __ASM_OPENRISC_GPIO_H */ |
