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RIOT/drivers/lsm6dsl/lsm6dsl_saul.c
Kees Bakker d8edf6dd4e drivers/lsm6dsl: eliminate and correct casts
Converting phydat_t* to lsm6dsl_3d_data_t* is not correct, but it happened
to just work because the first struct member of phydat_t will be used.

Furthermore, casting &res[0] to int16_t* is wrong. Again, it just happened
to work.
2019-01-06 16:56:17 +01:00

80 lines
1.6 KiB
C

/*
* Copyright (C) 2017 OTA keys S.A.
*
* 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_lsm6dsl
* @{
*
* @file
* @brief SAUL implementation for the LSM6DSL 3D accelerometer/gyroscope.
*
* @author Vincent Dupont <vincent@otakeys.com>
* @author Sebastian Meiling <s@mlng.net>
*
* @}
*/
#include "lsm6dsl.h"
#include "saul.h"
static int read_acc(const void *dev, phydat_t *res)
{
int ret = lsm6dsl_read_acc((const lsm6dsl_t *)dev, (lsm6dsl_3d_data_t *)res->val);
if (ret < 0) {
return -ECANCELED;
}
res->scale = -3;
res->unit = UNIT_G;
return 3;
}
static int read_gyro(const void *dev, phydat_t *res)
{
int ret = lsm6dsl_read_gyro((const lsm6dsl_t *)dev, (lsm6dsl_3d_data_t *)res->val);
if (ret < 0) {
return -ECANCELED;
}
res->scale = -1;
res->unit = UNIT_DPS;
return 3;
}
static int read_temp(const void *dev, phydat_t *res)
{
if (lsm6dsl_read_temp((const lsm6dsl_t *)dev, &res->val[0]) < 0) {
return -ECANCELED;
}
res->scale = -2;
res->unit = UNIT_TEMP_C;
return 1;
}
const saul_driver_t lsm6dsl_saul_acc_driver = {
.read = read_acc,
.write = saul_notsup,
.type = SAUL_SENSE_ACCEL,
};
const saul_driver_t lsm6dsl_saul_gyro_driver = {
.read = read_gyro,
.write = saul_notsup,
.type = SAUL_SENSE_GYRO,
};
const saul_driver_t lsm6dsl_saul_temp_driver = {
.read = read_temp,
.write = saul_notsup,
.type = SAUL_SENSE_TEMP,
};