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16f859dafd
This makes life easier when calling e.g. `saul_reg_write()` with data stored in flash. As now the signatures for reading and writing differ (in that `const` qualifier only), `saul_notsup()` is split into `saul_write_notsup()` and `saul_read_notsup()`. However, one is implemented as a symbol alias of the other, so that ROM consumption remains unchanged.
60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
/*
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* Copyright (C) 2018 Gunar Schorcht
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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_itg320x
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* @brief ITG320X adaption to the RIOT actuator/sensor interface
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* @author Gunar Schorcht <gunar@schorcht.net>
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* @file
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*/
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#include <string.h>
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#include "saul.h"
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#include "itg320x.h"
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static int read_gyro(const void *dev, phydat_t *res)
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{
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itg320x_data_t data;
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int ret = itg320x_read((const itg320x_t *)dev, &data);
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if (ret < 0) {
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return -ECANCELED;
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}
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/* convert milli-dps to deci-dps */
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res->val[0] = data.x;
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res->val[1] = data.y;
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res->val[2] = data.z;
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res->unit = UNIT_DPS;
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res->scale = -1;
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return 3;
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}
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static int read_temp(const void *dev, phydat_t *res)
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{
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int ret = itg320x_read_temp((const itg320x_t *)dev, &res->val[0]);
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if (ret < 0) {
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return -ECANCELED;
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}
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res->unit = UNIT_TEMP_C;
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res->scale = -1;
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return 1;
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}
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const saul_driver_t itg320x_saul_gyro_driver = {
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.read = read_gyro,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_GYRO,
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};
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const saul_driver_t itg320x_saul_temp_driver = {
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.read = read_temp,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_TEMP,
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};
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