a752c7ab
 elopes
add first test an...
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/*
* Copyright (C) 2015 Freie Universitรคt Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup drivers_saul
* @{
*
* @file
* @brief SAUL wrapper for direct access to GPIO pins
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <string.h>
#include "saul.h"
#include "phydat.h"
#include "periph/gpio.h"
#include "saul/periph.h"
static int read(const void *dev, phydat_t *res)
{
const saul_gpio_params_t *p = (const saul_gpio_params_t *)dev;
int inverted = (p->flags & SAUL_GPIO_INVERTED);
res->val[0] = (gpio_read(p->pin)) ? !inverted : inverted;
memset(&(res->val[1]), 0, 2 * sizeof(int16_t));
res->unit = UNIT_BOOL;
res->scale = 0;
return 1;
}
static int write(const void *dev, phydat_t *state)
{
const saul_gpio_params_t *p = (const saul_gpio_params_t *)dev;
int inverted = (p->flags & SAUL_GPIO_INVERTED);
int value = (state->val[0] ? !inverted : inverted);
gpio_write(p->pin, value);
return 1;
}
const saul_driver_t gpio_out_saul_driver = {
.read = read,
.write = write,
.type = SAUL_ACT_SWITCH
};
const saul_driver_t gpio_in_saul_driver = {
.read = read,
.write = saul_notsup,
.type = SAUL_SENSE_BTN
};
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