sdrangel/devices/bladerf/devicebladerf.cpp

191 wiersze
5.0 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2016-2017 Edouard Griffiths, F4EXB //
// //
// 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 as version 3 of the License, or //
// //
// 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 V3 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/>. //
///////////////////////////////////////////////////////////////////////////////////
#include <cstdio>
#include <cstring>
#include "devicebladerf.h"
bool DeviceBladeRF::open_bladerf(struct bladerf **dev, const char *serial)
{
int fpga_loaded;
if ((*dev = open_bladerf_from_serial(serial)) == 0)
{
fprintf(stderr, "DeviceBladeRF::open_bladerf: could not open BladeRF\n");
return false;
}
fpga_loaded = bladerf_is_fpga_configured(*dev);
if (fpga_loaded < 0)
{
fprintf(stderr, "DeviceBladeRF::open_bladerf: failed to check FPGA state: %s\n",
bladerf_strerror(fpga_loaded));
return false;
}
else if (fpga_loaded == 0)
{
fprintf(stderr, "BladerfOutput::start: the device's FPGA is not loaded.\n");
return false;
}
return true;
}
struct bladerf *DeviceBladeRF::open_bladerf_from_serial(const char *serial)
{
int status;
struct bladerf *dev;
struct bladerf_devinfo info;
/* Initialize all fields to "don't care" wildcard values.
*
* Immediately passing this to bladerf_open_with_devinfo() would cause
* libbladeRF to open any device on any available backend. */
bladerf_init_devinfo(&info);
/* Specify the desired device's serial number, while leaving all other
* fields in the info structure wildcard values */
if (serial != 0)
{
strncpy(info.serial, serial, BLADERF_SERIAL_LENGTH - 1);
info.serial[BLADERF_SERIAL_LENGTH - 1] = '\0';
}
status = bladerf_open_with_devinfo(&dev, &info);
if (status == BLADERF_ERR_NODEV)
{
fprintf(stderr, "DeviceBladeRF::open_bladerf_from_serial: No devices available with serial=%s\n", serial);
return 0;
}
else if (status != 0)
{
fprintf(stderr, "DeviceBladeRF::open_bladerf_from_serial: Failed to open device with serial=%s (%s)\n",
serial, bladerf_strerror(status));
return 0;
}
else
{
return dev;
}
}
const unsigned int BladerfSampleRates::m_nb_rates = 22;
const unsigned int BladerfSampleRates::m_rates[BladerfSampleRates::m_nb_rates] = {
1536000,
1600000,
2000000,
2304000,
2400000,
3072000,
3200000,
4333333, // for GSM
4608000,
4800000,
6144000,
7680000,
9216000,
9600000,
10752000,
12288000,
18432000,
19200000,
24576000,
30720000,
36864000,
39936000};
unsigned int BladerfSampleRates::getRate(unsigned int rate_index)
{
if (rate_index < m_nb_rates)
{
return m_rates[rate_index];
}
else
{
return m_rates[0];
}
}
unsigned int BladerfSampleRates::getRateIndex(unsigned int rate)
{
for (unsigned int i=0; i < m_nb_rates; i++)
{
if (rate == m_rates[i])
{
return i;
}
}
return 0;
}
unsigned int BladerfSampleRates::getNbRates()
{
return BladerfSampleRates::m_nb_rates;
}
const unsigned int BladerfBandwidths::m_nb_halfbw = 16;
const unsigned int BladerfBandwidths::m_halfbw[BladerfBandwidths::m_nb_halfbw] = {
750,
875,
1250,
1375,
1500,
1920,
2500,
2750,
3000,
3500,
4375,
5000,
6000,
7000,
10000,
14000};
unsigned int BladerfBandwidths::getBandwidth(unsigned int bandwidth_index)
{
if (bandwidth_index < m_nb_halfbw)
{
return m_halfbw[bandwidth_index] * 2;
}
else
{
return m_halfbw[0] * 2;
}
}
unsigned int BladerfBandwidths::getBandwidthIndex(unsigned int bandwidth)
{
for (unsigned int i=0; i < m_nb_halfbw; i++)
{
if (bandwidth/2000 == m_halfbw[i])
{
return i;
}
}
return 0;
}
unsigned int BladerfBandwidths::getNbBandwidths()
{
return BladerfBandwidths::m_nb_halfbw;
}