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102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
/*
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* Copyright 2018 Otto-von-Guericke-Universität Magdeburg
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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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/*
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* @ingroup sys_auto_init
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* @{
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*
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* @file
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* @brief Auto initialization for SHT1X temperature/humidity sensors
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*
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* @author Marian Buschsieweke <marian.buschsieweke@ovgu.de>
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*
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* Please note that the sht1x differs from other sensor modules, as
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* initialization is performed regardless of the use of SAUL. However, when
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* the module `auto_init_saul` is *not* used, the SAUL registration is skipped
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* and the initialization does *not* depend on SAUL in this case.
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*
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* @}
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*/
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#include "log.h"
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#include "sht1x_params.h"
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#include "sht1x.h"
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#define ENABLE_DEBUG 0
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#include "debug.h"
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/**
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* @brief Define the number of configured sensors
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*/
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#define SHT1X_NUM ARRAY_SIZE(sht1x_params)
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/**
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* @brief Allocate memory for the device descriptors
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*/
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sht1x_dev_t sht1x_devs[SHT1X_NUM];
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#ifdef MODULE_AUTO_INIT_SAUL
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/**
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* @brief Memory for the SAUL registry entries
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*/
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static saul_reg_t saul_entries[SHT1X_NUM * 2];
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/**
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* @name Import SAUL endpoints
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* @{
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*/
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extern const saul_driver_t sht1x_saul_temp_driver;
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extern const saul_driver_t sht1x_saul_hum_driver;
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/** @} */
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#endif /* MODULE_AUTO_INIT_SAUL */
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static void sht1x_error(unsigned int num, const char *reason)
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{
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LOG_ERROR("[auto_init] error initializing SHT10/SHT11/SHT15 sensor "
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"#%u: %s\n", num, reason);
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}
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void auto_init_sht1x(void)
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{
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for (unsigned int i = 0; i < SHT1X_NUM; i++) {
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DEBUG("[auto_init_sht1x] Initializing SHT1X sensor #%u\n", i);
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switch (sht1x_init(&sht1x_devs[i], &sht1x_params[i])) {
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case 0:
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break;
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case -EIO:
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sht1x_error(i, "Failed to initialize GPIOs");
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continue;
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case -EINVAL:
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sht1x_error(i, "Invalid configuration for VDD");
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continue;
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case -EPROTO:
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sht1x_error(i, "Reset command not acknowledged");
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continue;
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default:
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/* Should not happen, but better safe than sorry */
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sht1x_error(i, "?");
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continue;
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}
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#ifdef MODULE_AUTO_INIT_SAUL
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saul_entries[(i * 2) ].dev = &(sht1x_devs[i]);
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saul_entries[(i * 2) + 1].dev = &(sht1x_devs[i]);
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saul_entries[(i * 2) ].name = sht1x_saul_info[(i * 2) ].name;
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saul_entries[(i * 2) + 1].name = sht1x_saul_info[(i * 2) + 1].name;
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saul_entries[(i * 2) ].driver = &sht1x_saul_temp_driver;
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saul_entries[(i * 2) + 1].driver = &sht1x_saul_hum_driver;
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saul_reg_add(&(saul_entries[(i * 2) ]));
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saul_reg_add(&(saul_entries[(i * 2) + 1]));
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#endif /* MODULE_AUTO_INIT_SAUL */
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}
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}
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