Software to turn the RTL2832U into a SDR receiver
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rtl-sdr/src/convenience/convenience.h

142 lines
3.3 KiB

/*
* 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);