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RIOT/sys/auto_init/saul/auto_init_bmx280.c 2.46 KB
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  /*
   * Copyright (C) 2016 Kees Bakker, SODAQ
   *               2017 Inria
   *
   * 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 of BMX280 driver.
   *
   * @author      Kees Bakker <kees@sodaq.com>
   * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
   *
   * @}
   */
  
  #if defined(MODULE_BME280) || defined(MODULE_BMP280)
  
  #include "log.h"
  #include "saul_reg.h"
  
  #include "bmx280_params.h"
  #include "bmx280.h"
  
  /**
   * @brief   Allocation of memory for device descriptors
   */
  static bmx280_t bmx280_devs[BMX280_NUMOF];
  
  /**
   * @brief   Reference the driver structs.
   * @{
   */
  extern const saul_driver_t bmx280_temperature_saul_driver;
  extern const saul_driver_t bmx280_pressure_saul_driver;
  #if defined(MODULE_BME280)
  extern const saul_driver_t bme280_relative_humidity_saul_driver;
  #endif
  /** @} */
  
  /**
   * @brief   Memory for the SAUL registry entries
   */
  #if defined(MODULE_BME280)
  #define SENSORS_NUMOF 3
  #else
  #define SENSORS_NUMOF 2
  #endif
  static saul_reg_t saul_entries[BMX280_NUMOF * SENSORS_NUMOF];
  
  void auto_init_bmx280(void)
  {
      size_t se_ix = 0;
      for (size_t i = 0; i < BMX280_NUMOF; i++) {
          LOG_DEBUG("[auto_init_saul] initializing BMX280 #%u\n", i);
          int res = bmx280_init(&bmx280_devs[i], &bmx280_params[i]);
          if (res < 0) {
              LOG_ERROR("[auto_init_saul] error initializing BMX280 #%i\n", i);
              continue;
          }
  
          /* temperature */
          saul_entries[se_ix].dev = &bmx280_devs[i];
          saul_entries[se_ix].name = bmx280_saul_reg_info[i].name;
          saul_entries[se_ix].driver = &bmx280_temperature_saul_driver;
          saul_reg_add(&saul_entries[se_ix]);
          se_ix++;
  
          /* pressure */
          saul_entries[se_ix].dev = &bmx280_devs[i];
          saul_entries[se_ix].name = bmx280_saul_reg_info[i].name;
          saul_entries[se_ix].driver = &bmx280_pressure_saul_driver;
          saul_reg_add(&saul_entries[se_ix]);
          se_ix++;
  
  #if defined(MODULE_BME280)
          /* relative humidity */
          saul_entries[se_ix].dev = &bmx280_devs[i];
          saul_entries[se_ix].name = bmx280_saul_reg_info[i].name;
          saul_entries[se_ix].driver = &bme280_relative_humidity_saul_driver;
          saul_reg_add(&saul_entries[se_ix]);
          se_ix++;
  #endif
      }
  }
  
  #else
  typedef int dont_be_pedantic;
  #endif /* MODULE_BMX280 */