auto_init_dht.c
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/*
* Copyright (C) 2017 Freie Universität Berlin
*
* 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 auto_init_saul
* @{
*
* @file
* @brief Auto initialization for DHT temperature/humidity sensors
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#ifdef MODULE_DHT
#include "log.h"
#include "saul_reg.h"
#include "dht_params.h"
#include "dht.h"
/**
* @brief Define the number of configured sensors
*/
#define DHT_NUMOF (sizeof(dht_params) / sizeof(dht_params[0]))
/**
* @brief Allocate memory for the device descriptors
*/
static dht_t dht_devs[DHT_NUMOF];
/**
* @brief Import SAUL endpoints
* @{
*/
extern const saul_driver_t dht_temp_saul_driver;
extern const saul_driver_t dht_hum_saul_driver;
/** @} */
/**
* @brief Memory for the SAUL registry entries
*/
static saul_reg_t saul_entries[DHT_NUMOF * 2];
void auto_init_dht(void)
{
for (unsigned int i = 0; i < DHT_NUMOF; i++) {
LOG_DEBUG("[auto_init_saul] initializing dht #%u\n", i);
if (dht_init(&dht_devs[i], &dht_params[i]) != DHT_OK) {
LOG_ERROR("[auto_init_saul] error initializing dht #%u\n", i);
continue;
}
saul_entries[(i * 2)].dev = &(dht_devs[i]);
saul_entries[(i * 2)].name = dht_saul_reg_info[i].name;
saul_entries[(i * 2)].driver = &dht_temp_saul_driver;
saul_entries[(i * 2) + 1].dev = &(dht_devs[i]);
saul_entries[(i * 2) + 1].name = dht_saul_reg_info[i].name;
saul_entries[(i * 2) + 1].driver = &dht_hum_saul_driver;
saul_reg_add(&(saul_entries[(i * 2)]));
saul_reg_add(&(saul_entries[(i * 2) + 1]));
}
}
#else
typedef int dont_be_pedantic;
#endif /* MODULE_DHT */