mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
/*
|
|
* Copyright 2019 Otto-von-Guericke-Universität Magdeburg
|
|
*
|
|
* 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_ltc4150
|
|
* @{
|
|
*
|
|
* @file
|
|
* @brief SAUL adaption for LTC4150 devices
|
|
*
|
|
* @author Marian Buschsieweke <marian.buschsieweke@ovgu.de>
|
|
*
|
|
* @}
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "phydat.h"
|
|
#include "saul.h"
|
|
#include "ltc4150.h"
|
|
|
|
static int read_charge(const void *_dev, phydat_t *res)
|
|
{
|
|
ltc4150_dev_t *dev = (ltc4150_dev_t *)_dev;
|
|
int32_t temp[3];
|
|
|
|
if (ltc4150_charge(dev, (uint32_t *)&temp[1], (uint32_t *)&temp[2]) == 0) {
|
|
res->scale = -3;
|
|
res->unit = UNIT_COULOMB;
|
|
temp[0] = temp[2] - temp[1];
|
|
int dim = (dev->params.polarity != GPIO_UNDEF) ? 3 : 1;
|
|
phydat_fit(res, temp, (unsigned)dim);
|
|
return dim;
|
|
}
|
|
|
|
return -ECANCELED;
|
|
}
|
|
|
|
static int read_current(const void *dev, phydat_t *res)
|
|
{
|
|
if (ltc4150_avg_current((ltc4150_dev_t *)dev, res->val) == 0) {
|
|
res->unit = UNIT_A;
|
|
res->scale = -4;
|
|
return 1;
|
|
}
|
|
|
|
return -ECANCELED;
|
|
}
|
|
|
|
const saul_driver_t ltc4150_saul_charge_driver = {
|
|
.read = read_charge,
|
|
.write = saul_notsup,
|
|
.type = SAUL_SENSE_CHARGE
|
|
};
|
|
|
|
const saul_driver_t ltc4150_saul_current_driver = {
|
|
.read = read_current,
|
|
.write = saul_notsup,
|
|
.type = SAUL_SENSE_CURRENT
|
|
};
|