/*
   * Copyright (C) 2014 by Kyle Keen <keenerd@gmail.com>
   *
   * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation, either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
   */
  
  /* a collection of user friendly tools */
  
  /*!
   * Convert standard suffixes (k, M, G) to double
   *
   * \param s a string to be parsed
   * \return double
   */
  
  double atofs(char *s);
  
  /*!
   * Convert time suffixes (s, m, h) to double
   *
   * \param s a string to be parsed
   * \return seconds as double
   */
  
  double atoft(char *s);
  
  /*!
   * Convert percent suffixe (%) to double
   *
   * \param s a string to be parsed
   * \return double
   */
  
  double atofp(char *s);
  
  /*!
   * Find nearest supported gain
   *
   * \param dev the device handle given by rtlsdr_open()
   * \param target_gain in tenths of a dB
   * \return 0 on success
   */
  
  int nearest_gain(rtlsdr_dev_t *dev, int target_gain);
  
  /*!
   * Set device frequency and report status on stderr
   *
   * \param dev the device handle given by rtlsdr_open()
   * \param frequency in Hz
   * \return 0 on success
   */
  
  int verbose_set_frequency(rtlsdr_dev_t *dev, uint32_t frequency);
  
  /*!
   * Set device sample rate and report status on stderr
   *
   * \param dev the device handle given by rtlsdr_open()
   * \param samp_rate in samples/second
   * \return 0 on success
   */
  
  int verbose_set_sample_rate(rtlsdr_dev_t *dev, uint32_t samp_rate);
  
  /*!
   * Enable or disable the direct sampling mode and report status on stderr
   *
   * \param dev the device handle given by rtlsdr_open()
   * \param on 0 means disabled, 1 I-ADC input enabled, 2 Q-ADC input enabled
   * \return 0 on success
   */
  
  int verbose_direct_sampling(rtlsdr_dev_t *dev, int on);
  
  /*!
   * Enable offset tuning and report status on stderr
   *
   * \param dev the device handle given by rtlsdr_open()
   * \return 0 on success
   */
  
  int verbose_offset_tuning(rtlsdr_dev_t *dev);
  
  /*!
   * Enable auto gain and report status on stderr
   *
   * \param dev the device handle given by rtlsdr_open()
   * \return 0 on success
   */
  
  int verbose_auto_gain(rtlsdr_dev_t *dev);
  
  /*!
   * Set tuner gain and report status on stderr
   *
   * \param dev the device handle given by rtlsdr_open()
   * \param gain in tenths of a dB
   * \return 0 on success
   */
  
  int verbose_gain_set(rtlsdr_dev_t *dev, int gain);
  
  /*!
   * Set the frequency correction value for the device and report status on stderr.
   *
   * \param dev the device handle given by rtlsdr_open()
   * \param ppm_error correction value in parts per million (ppm)
   * \return 0 on success
   */
  
  int verbose_ppm_set(rtlsdr_dev_t *dev, int ppm_error);
  
  /*!
   * Reset buffer
   *
   * \param dev the device handle given by rtlsdr_open()
   * \return 0 on success
   */
  
  int verbose_reset_buffer(rtlsdr_dev_t *dev);
  
  /*!
   * Find the closest matching device.
   *
   * \param s a string to be parsed
   * \return dev_index int, -1 on error
   */
  
  int verbose_device_search(char *s);