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https://github.com/RIOT-OS/RIOT.git
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3c287c058d
Previously, `UNIT_G` was used for g-force with the correct symbol `g`, `UNIT_GR` for gram (as in kilogram) with the incorrect symbol `G` (which would be correct for Gauss), and `UNIT_GS` for Gauss with symbol `Gs` (which is an uncommon but correct symbol). To avoid confusion between G-Force, Gauss, and Gram the units have been renamed to `UNIT_G_FORCE`, `UNIT_GRAM`, and `UNIT_GAUSS`. In addition, gram now uses the correct symbol `g` and Gauss uses `G`.
73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
/*
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* Copyright (C) 2018 UC Berkeley
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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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/**
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* @ingroup drivers_fxos8700
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* @{
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*
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* @file
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* @brief FXOS8700 adaption to the RIOT actuator/sensor interface
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*
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* @author Hyung-Sin Kim <hs.kim@cs.berkeley.edu>
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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 "fxos8700.h"
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#include "kernel_defines.h"
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static int read_mag(const void *dev, phydat_t *res)
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{
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if (fxos8700_read_cached(dev, NULL, (fxos8700_measurement_t *)res)
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!= FXOS8700_OK) {
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/* Read failure */
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return -ECANCELED;
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}
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res->unit = UNIT_GAUSS;
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res->scale = -3;
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return 3;
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}
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static int read_acc(const void *dev, phydat_t *res)
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{
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if (fxos8700_read_cached(dev, (fxos8700_measurement_t *)res, NULL)
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!= FXOS8700_OK) {
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/* Read failure */
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return -ECANCELED;
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}
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if (IS_ACTIVE(CONFIG_FXOS8700_USE_ACC_RAW_VALUES)) {
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res->unit = UNIT_NONE;
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res->scale = 0;
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}
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else {
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res->unit = UNIT_G_FORCE;
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if (((fxos8700_t *)dev)->p.acc_range == FXOS8700_REG_XYZ_DATA_CFG_FS__2G) {
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res->scale = -4;
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}
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else {
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res->scale = -3;
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}
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}
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return 3;
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}
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const saul_driver_t fxos8700_saul_mag_driver = {
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.read = read_mag,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_MAG,
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};
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const saul_driver_t fxos8700_saul_acc_driver = {
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.read = read_acc,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_ACCEL,
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};
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