2015-11-18 16:07:02 +01:00
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/*
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* Copyright (C) 2015 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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2016-02-13 10:33:34 +01:00
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/**
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2015-11-18 16:07:02 +01:00
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* @ingroup drivers_saul
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* @{
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*
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* @file
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* @brief SAUL wrapper for direct access to GPIO pins
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*
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
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*
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* @}
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*/
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#include <string.h>
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#include "saul.h"
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#include "phydat.h"
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#include "periph/gpio.h"
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static int read(void *dev, phydat_t *res)
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{
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gpio_t pin = *((gpio_t *)dev);
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res->val[0] = (gpio_read(pin)) ? 1 : 0;
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memset(&(res->val[1]), 0, 2 * sizeof(int16_t));
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res->unit = UNIT_BOOL;
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res->scale = 0;
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return 1;
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}
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static int write(void *dev, phydat_t *state)
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{
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gpio_t pin = *((gpio_t *)dev);
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gpio_write(pin, state->val[0]);
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return 1;
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}
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const saul_driver_t gpio_saul_driver = {
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.read = read,
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.write = write,
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.type = SAUL_ACT_SWITCH,
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};
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