text: /**
   * Copyright (c) 2012 - 2017, Nordic Semiconductor ASA
   * 
   * All rights reserved.
   * 
   * Redistribution and use in source and binary forms, with or without modification,
   * are permitted provided that the following conditions are met:
   * 
   * 1. Redistributions of source code must retain the above copyright notice, this
   *    list of conditions and the following disclaimer.
   * 
   * 2. Redistributions in binary form, except as embedded into a Nordic
   *    Semiconductor ASA integrated circuit in a product or a software update for
   *    such product, must reproduce the above copyright notice, this list of
   *    conditions and the following disclaimer in the documentation and/or other
   *    materials provided with the distribution.
   * 
   * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
   *    contributors may be used to endorse or promote products derived from this
   *    software without specific prior written permission.
   * 
   * 4. This software, with or without modification, must only be used with a
   *    Nordic Semiconductor ASA integrated circuit.
   * 
   * 5. Any software provided in binary form under this license must not be reverse
   *    engineered, decompiled, modified and/or disassembled.
   * 
   * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
   * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
   * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   * 
   */
  
  #include "sensorsim.h"
  
  
  void sensorsim_init(sensorsim_state_t     * p_state,
                      const sensorsim_cfg_t * p_cfg)
  {
      if (p_cfg->start_at_max)
      {
          p_state->current_val   = p_cfg->max;
          p_state->is_increasing = false;
      }
      else
      {
          p_state->current_val   = p_cfg->min;
          p_state->is_increasing = true;
      }
  }
  
  
  uint32_t sensorsim_measure(sensorsim_state_t     * p_state,
                             const sensorsim_cfg_t * p_cfg)
  {
      if (p_state->is_increasing)
      {
          sensorsim_increment(p_state, p_cfg);
      }
      else
      {
          sensorsim_decrement(p_state, p_cfg);
      }
      return p_state->current_val;
  }
  
  void sensorsim_increment(sensorsim_state_t *     p_state,
                           const sensorsim_cfg_t * p_cfg)
  {
      if (p_cfg->max - p_state->current_val > p_cfg->incr)
      {
          p_state->current_val += p_cfg->incr;
      }
      else
      {
          p_state->current_val   = p_cfg->max;
          p_state->is_increasing = false;
      }
  }
  
  
  void sensorsim_decrement(sensorsim_state_t *     p_state,
                           const sensorsim_cfg_t * p_cfg)
  {
      if (p_state->current_val - p_cfg->min > p_cfg->incr)
      {
          p_state->current_val -= p_cfg->incr;
      }
      else
      {
          p_state->current_val   = p_cfg->min;
          p_state->is_increasing = true;
      }
  }
  