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/*
* Copyright 2014-present Facebook. 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 as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef GPIO_H
#define GPIO_H
typedef struct {
int gs_gpio;
int gs_fd;
} gpio_st;
typedef enum {
GPIO_DIRECTION_IN,
GPIO_DIRECTION_OUT,
} gpio_direction_en;
typedef enum {
GPIO_VALUE_LOW = 0,
GPIO_VALUE_HIGH = 1,
} gpio_value_en;
int gpio_open(gpio_st* g, int gpio);
void gpio_close(gpio_st *g);
gpio_value_en gpio_read(gpio_st *g);
void gpio_write(gpio_st *g, gpio_value_en v);
int gpio_change_direction(gpio_st *g, gpio_direction_en dir);
#endif
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