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RIOT/sys/auto_init/saul/auto_init_mpl3115a2.c 2.11 KB
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  /*
   * Copyright (C) 2017 HAW Hamburg
   *
   * 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 MPL3115A2 pressure sensor
   *
   * @author      Sebastian Meiling <s@mlng.net>
   *
   * @}
   */
  
  #ifdef MODULE_MPL3115A2
  
  #include "log.h"
  #include "saul_reg.h"
  
  #include "mpl3115a2.h"
  #include "mpl3115a2_params.h"
  
  /**
   * @brief   Define the number of configured sensors
   */
  #define MPL3115A2_NUM     (sizeof(mpl3115a2_params) / sizeof(mpl3115a2_params[0]))
  
  /**
   * @brief   Allocate memory for the device descriptors
   */
  static mpl3115a2_t mpl3115a2_devs[MPL3115A2_NUM];
  
  /**
   * @brief   Memory for the SAUL registry entries
   */
  static saul_reg_t saul_entries[MPL3115A2_NUM * 2];
  
  /**
   * @name    Reference the driver struct
   * @{
   */
  extern const saul_driver_t mpl3115a2_pressure_saul_driver;
  extern const saul_driver_t mpl3115a2_temperature_saul_driver;
  /** @} */
  
  void auto_init_mpl3115a2(void)
  {
      for (unsigned i = 0; i < MPL3115A2_NUM; i++) {
          LOG_DEBUG("[auto_init_saul] initializing mpl3115a2 #%u\n", i);
  
          if ((mpl3115a2_init(&mpl3115a2_devs[i], &mpl3115a2_params[i]) |
               mpl3115a2_set_active(&mpl3115a2_devs[i])) != MPL3115A2_OK) {
              LOG_ERROR("[auto_init_saul] error initializing mpl3115a2 #%u\n", i);
              continue;
          }
  
          /* temperature */
          saul_entries[(i * 2)].dev = &(mpl3115a2_devs[i]);
          saul_entries[(i * 2)].name = mpl3115a2_saul_info[i].name;
          saul_entries[(i * 2)].driver = &mpl3115a2_temperature_saul_driver;
  
          /* atmospheric pressure */
          saul_entries[(i * 2) + 1].dev = &(mpl3115a2_devs[i]);
          saul_entries[(i * 2) + 1].name = mpl3115a2_saul_info[i].name;
          saul_entries[(i * 2) + 1].driver = &mpl3115a2_pressure_saul_driver;
  
          /* register to saul */
          saul_reg_add(&(saul_entries[(i * 2)]));
          saul_reg_add(&(saul_entries[(i * 2) + 1]));
      }
  }
  
  #else
  typedef int dont_be_pedantic;
  #endif /* MODULE_MPL3115A2 */