You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

44 lines
980 B

/*
* Copyright (C) 2016 Eistec AB
*
* 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 analog pins
*
* @author Joakim Nohlgård <joakim.nohlgard@eistec.se>
*
* @}
*/
#include <string.h>
#include "saul.h"
#include "saul/periph.h"
#include "phydat.h"
#include "periph/adc.h"
static int read_adc(const void *dev, phydat_t *res)
{
const saul_adc_params_t *params = *((const saul_adc_params_t **)dev);
res->val[0] = adc_sample(params->line, params->res);
memset(&(res->val[1]), 0, 2 * sizeof(res->val[1]));
/* Raw ADC reading has no unit */
res->unit = UNIT_NONE;
res->scale = 0;
return 1;
}
const saul_driver_t adc_saul_driver = {
.read = read_adc,
.write = saul_notsup,
.type = SAUL_SENSE_ANALOG,
};