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RIOT/sys/auto_init/saul/auto_init_lsm303dlhc.c 2.25 KB
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  /*
   * Copyright (C) 2015 Freie Universitรคt 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 of LSM303DLHC accelerometer/magnetometer
   *
   * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
   *
   * @}
   */
  
  #ifdef MODULE_LSM303DLHC
  
  #include "log.h"
  #include "saul_reg.h"
  #include "lsm303dlhc.h"
  #include "lsm303dlhc_params.h"
  
  /**
   * @brief   Define the number of configured sensors
   */
  #define LSM303DLHC_NUM    (sizeof(lsm303dlhc_params)/sizeof(lsm303dlhc_params[0]))
  
  /**
   * @brief   Allocate memory for the device descriptors
   */
  static lsm303dlhc_t lsm303dlhc_devs[LSM303DLHC_NUM];
  
  /**
   * @brief   Memory for the SAUL registry entries
   */
  static saul_reg_t saul_entries[LSM303DLHC_NUM * 2];
  
  /**
   * @brief   Reference the driver structs
   * @{
   */
  extern saul_driver_t lsm303dlhc_saul_acc_driver;
  extern saul_driver_t lsm303dlhc_saul_mag_driver;
  /** @} */
  
  void auto_init_lsm303dlhc(void)
  {
      for (unsigned int i = 0; i < LSM303DLHC_NUM; i++) {
          const lsm303dlhc_params_t *p = &lsm303dlhc_params[i];
  
          LOG_DEBUG("[auto_init_saul] initializing lsm303dlhc #%u\n", i);
  
          int res = lsm303dlhc_init(&lsm303dlhc_devs[i], p->i2c,
                                    p->acc_pin, p->mag_pin,
                                    p->acc_addr, p->acc_rate, p->acc_scale,
                                    p->mag_addr, p->mag_rate, p->mag_gain);
          if (res < 0) {
              LOG_ERROR("[auto_init_saul] error initializing lsm303dlhc #%u\n", i);
              continue;
          }
  
          saul_entries[(i * 2)].dev = &(lsm303dlhc_devs[i]);
          saul_entries[(i * 2)].name = lsm303dlhc_saul_info[i].name;
          saul_entries[(i * 2)].driver = &lsm303dlhc_saul_acc_driver;
          saul_entries[(i * 2) + 1].dev = &(lsm303dlhc_devs[i]);
          saul_entries[(i * 2) + 1].name = lsm303dlhc_saul_info[i].name;
          saul_entries[(i * 2) + 1].driver = &lsm303dlhc_saul_mag_driver;
          saul_reg_add(&(saul_entries[(i * 2)]));
          saul_reg_add(&(saul_entries[(i * 2) + 1]));
      }
  }
  
  #else
  typedef int dont_be_pedantic;
  #endif /* MODULE_LSM303DLHC */