int main(int argc, char** argv)
{
int opt;
char path_file[PATH_FILE_MAX_LEN];
char date_time[DATE_TIME_MAX_LEN];
t_u64toa ascii_u64_data1;
t_u64toa ascii_u64_data2;
const char* path = NULL;
int result;
time_t rawtime;
struct tm * timeinfo;
uint32_t file_pos;
int exit_code = EXIT_SUCCESS;
struct timeval t_end;
float time_diff;
while( (opt = getopt(argc, argv, "wr:f:n:v:m:l:")) != EOF )
{
result = AIRSPY_SUCCESS;
switch( opt )
{
case 'w':
receive_wav = true;
break;
case 'r':
receive = true;
path = optarg;
break;
case 'f':
freq = true;
result = parse_u64(optarg, &freq_hz);
break;
case 'v':
result = parse_u32(optarg, &vga_gain);
break;
case 'l':
result = parse_u32(optarg, &lna_gain);
break;
case 'm':
result = parse_u32(optarg, &mixer_gain);
break;
case 'n':
limit_num_samples = true;
result = parse_u64(optarg, &samples_to_xfer);
bytes_to_xfer = samples_to_xfer * 2;
break;
default:
printf("unknown argument '-%c %s'\n", opt, optarg);
usage();
return EXIT_FAILURE;
}
if( result != AIRSPY_SUCCESS ) {
printf("argument error: '-%c %s' %s (%d)\n", opt, optarg, airspy_error_name(result), result);
usage();
return EXIT_FAILURE;
}
}
if (samples_to_xfer >= SAMPLES_TO_XFER_MAX) {
printf("argument error: num_samples must be less than %s/%sMio\n",
u64toa(SAMPLES_TO_XFER_MAX, &ascii_u64_data1), u64toa(SAMPLES_TO_XFER_MAX/(FREQ_ONE_MHZ), &ascii_u64_data2) );
usage();
return EXIT_FAILURE;
}
if( freq ) {
if( (freq_hz >= FREQ_MAX_HZ) || (freq_hz < FREQ_MIN_HZ) )
{
printf("argument error: set_freq_hz shall be between [%s, %s[.\n", u64toa(FREQ_MIN_HZ, &ascii_u64_data1), u64toa(FREQ_MAX_HZ, &ascii_u64_data2));
usage();
return EXIT_FAILURE;
}
}else
{
/* Use default freq */
freq_hz = DEFAULT_FREQ_HZ;
}
receiver_mode = RECEIVER_MODE_RX;
if( receive_wav )
{
time (&rawtime);
timeinfo = localtime (&rawtime);
receiver_mode = RECEIVER_MODE_RX;
/* File format AirSpy Year(2013), Month(11), Day(28), Hour Min Sec+Z, Freq kHz, IQ.wav */
strftime(date_time, DATE_TIME_MAX_LEN, "%Y%m%d_%H%M%S", timeinfo);
snprintf(path_file, PATH_FILE_MAX_LEN, "AirSpy_%sZ_%ukHz_IQ.wav", date_time, (uint32_t)(freq_hz/(1000ull)) );
path = path_file;
printf("Receive wav file: %s\n", path);
}
if( path == NULL ) {
printf("specify a path to a file to receive\n");
usage();
return EXIT_FAILURE;
}
if(vga_gain > MAX_VGA_GAIN) {
printf("vga_gain out of range\n");
usage();
return EXIT_FAILURE;
}
if(mixer_gain > MAX_MIXER_GAIN) {
printf("mixer_gain out of range\n");
usage();
return EXIT_FAILURE;
}
if(lna_gain > MAX_LNA_GAIN) {
printf("lna_gain out of range\n");
usage();
return EXIT_FAILURE;
}
result = airspy_init();
if( result != AIRSPY_SUCCESS ) {
printf("airspy_init() failed: %s (%d)\n", airspy_error_name(result), result);
usage();
return EXIT_FAILURE;
}
result = airspy_open(&device);
if( result != AIRSPY_SUCCESS ) {
printf("airspy_open() failed: %s (%d)\n", airspy_error_name(result), result);
usage();
return EXIT_FAILURE;
}
result = airspy_set_sample_type(device, sample_type);
if( result != AIRSPY_SUCCESS ) {
printf("airspy_open() failed: %s (%d)\n", airspy_error_name(result), result);
usage();
return EXIT_FAILURE;
}
fd = fopen(path, "wb");
if( fd == NULL ) {
printf("Failed to open file: %s\n", path);
return EXIT_FAILURE;
}
/* Change fd buffer to have bigger one to store or read data on/to HDD */
result = setvbuf(fd , NULL , _IOFBF , FD_BUFFER_SIZE);
if( result != 0 ) {
printf("setvbuf() failed: %d\n", result);
usage();
return EXIT_FAILURE;
}
/* Write Wav header */
if( receive_wav )
{
fwrite(&wave_file_hdr, 1, sizeof(t_wav_file_hdr), fd);
}
#ifdef _MSC_VER
SetConsoleCtrlHandler( (PHANDLER_ROUTINE) sighandler, TRUE );
#else
signal(SIGINT, &sigint_callback_handler);
signal(SIGILL, &sigint_callback_handler);
signal(SIGFPE, &sigint_callback_handler);
signal(SIGSEGV, &sigint_callback_handler);
signal(SIGTERM, &sigint_callback_handler);
signal(SIGABRT, &sigint_callback_handler);
#endif
printf("call airspy_set_vga_gain(%u)\n", vga_gain);
result = airspy_set_vga_gain(device, vga_gain);
if( result != AIRSPY_SUCCESS ) {
printf("airspy_set_vga_gain() failed: %s (%d)\n", airspy_error_name(result), result);
//usage();
//return EXIT_FAILURE;
}
printf("call airspy_set_mixer_gain(%u)\n", mixer_gain);
result = airspy_set_mixer_gain(device, mixer_gain);
if( result != AIRSPY_SUCCESS ) {
printf("airspy_set_mixer_gain() failed: %s (%d)\n", airspy_error_name(result), result);
//usage();
//return EXIT_FAILURE;
}
printf("call airspy_set_lna_gain(%u)\n", lna_gain);
result = airspy_set_lna_gain(device, lna_gain);
if( result != AIRSPY_SUCCESS ) {
printf("airspy_set_lna_gain() failed: %s (%d)\n", airspy_error_name(result), result);
//usage();
//return EXIT_FAILURE;
}
result = airspy_start_rx(device, rx_callback, NULL);
if( result != AIRSPY_SUCCESS ) {
printf("airspy_start_rx() failed: %s (%d)\n", airspy_error_name(result), result);
usage();
return EXIT_FAILURE;
}
printf("call airspy_set_freq(%s Hz / %.03f MHz)\n", u64toa(freq_hz, &ascii_u64_data1),((double)freq_hz/(double)FREQ_ONE_MHZ) );
result = airspy_set_freq(device, freq_hz);
if( result != AIRSPY_SUCCESS ) {
printf("airspy_set_freq() failed: %s (%d)\n", airspy_error_name(result), result);
usage();
return EXIT_FAILURE;
}
if( limit_num_samples ) {
printf("samples_to_xfer %s/%sMio\n", u64toa(samples_to_xfer, &ascii_u64_data1), u64toa((samples_to_xfer/FREQ_ONE_MHZ), &ascii_u64_data2) );
}
gettimeofday(&t_start, NULL);
gettimeofday(&time_start, NULL);
printf("Stop with Ctrl-C\n");
while( (airspy_is_streaming(device) == AIRSPY_TRUE) &&
(do_exit == false) )
{
uint32_t byte_count_now;
struct timeval time_now;
float time_difference, rate;
sleep(1);
gettimeofday(&time_now, NULL);
byte_count_now = byte_count;
byte_count = 0;
time_difference = TimevalDiff(&time_now, &time_start);
rate = (float)byte_count_now / time_difference;
printf("%4.1f MiB / %5.3f sec = %4.1f MiB/second\n",
(byte_count_now / 1e6f), time_difference, (rate / 1e6f) );
time_start = time_now;
if (byte_count_now == 0) {
exit_code = EXIT_FAILURE;
printf("\nCouldn't transfer any bytes for one second.\n");
break;
}
}
result = airspy_is_streaming(device);
if (do_exit)
{
printf("\nUser cancel, exiting...\n");
} else {
printf("\nExiting... airspy_is_streaming() result: %s (%d)\n", airspy_error_name(result), result);
}
gettimeofday(&t_end, NULL);
time_diff = TimevalDiff(&t_end, &t_start);
printf("Total time: %5.5f s\n", time_diff);
if(device != NULL)
{
result = airspy_stop_rx(device);
if( result != AIRSPY_SUCCESS ) {
printf("airspy_stop_rx() failed: %s (%d)\n", airspy_error_name(result), result);
}else {
printf("airspy_stop_rx() done\n");
}
result = airspy_close(device);
if( result != AIRSPY_SUCCESS )
{
printf("airspy_close() failed: %s (%d)\n", airspy_error_name(result), result);
}else {
printf("airspy_close() done\n");
}
airspy_exit();
printf("airspy_exit() done\n");
}
if(fd != NULL)
{
if( receive_wav )
{
/* Get size of file */
file_pos = ftell(fd);
/* Update Wav Header */
wave_file_hdr.hdr.size = file_pos+8;
wave_file_hdr.fmt_chunk.dwSamplesPerSec = (uint32_t)DEFAULT_SAMPLE_RATE_HZ;
wave_file_hdr.fmt_chunk.dwAvgBytesPerSec = wave_file_hdr.fmt_chunk.dwSamplesPerSec*2;
wave_file_hdr.data_chunk.chunkSize = file_pos - sizeof(t_wav_file_hdr);
/* Overwrite header with updated data */
rewind(fd);
fwrite(&wave_file_hdr, 1, sizeof(t_wav_file_hdr), fd);
}
fclose(fd);
fd = NULL;
printf("fclose(fd) done\n");
}
printf("exit\n");
return exit_code;
}
bool AirspySource::configure(std::uint32_t changeFlags,
int sampleRateIndex,
uint32_t frequency,
bool bias_ant,
int lna_gain,
int mix_gain,
int vga_gain,
bool lna_agc,
bool mix_agc
)
{
airspy_error rc;
if (!m_dev) {
return false;
}
if (changeFlags & 0x1)
{
m_frequency = frequency;
rc = (airspy_error) airspy_set_freq(m_dev, m_frequency);
if (rc != AIRSPY_SUCCESS)
{
std::ostringstream err_ostr;
err_ostr << "Could not set center frequency to " << m_frequency << " Hz";
m_error = err_ostr.str();
return false;
}
}
if (changeFlags & 0x2)
{
rc = (airspy_error) airspy_set_samplerate(m_dev, static_cast<airspy_samplerate_t>(sampleRateIndex));
if (rc != AIRSPY_SUCCESS)
{
std::ostringstream err_ostr;
err_ostr << "Could not set center sample rate to " << m_srates[sampleRateIndex] << " Hz";
m_error = err_ostr.str();
return false;
}
else
{
m_sampleRate = m_srates[sampleRateIndex];
}
}
if (changeFlags & 0x4)
{
m_lnaGain = lna_gain;
rc = (airspy_error) airspy_set_lna_gain(m_dev, m_lnaGain);
if (rc != AIRSPY_SUCCESS)
{
std::ostringstream err_ostr;
err_ostr << "Could not set LNA gain to " << m_lnaGain << " dB";
m_error = err_ostr.str();
return false;
}
}
if (changeFlags & 0x8)
{
m_mixGain = mix_gain;
rc = (airspy_error) airspy_set_mixer_gain(m_dev, m_mixGain);
if (rc != AIRSPY_SUCCESS)
{
std::ostringstream err_ostr;
err_ostr << "Could not set mixer gain to " << m_mixGain << " dB";
m_error = err_ostr.str();
return false;
}
}
if (changeFlags & 0x10)
{
m_vgaGain = vga_gain;
rc = (airspy_error) airspy_set_vga_gain(m_dev, m_vgaGain);
if (rc != AIRSPY_SUCCESS)
{
std::ostringstream err_ostr;
err_ostr << "Could not set VGA gain to " << m_vgaGain << " dB";
m_error = err_ostr.str();
return false;
}
}
if (changeFlags & 0x20)
{
m_biasAnt = bias_ant;
rc = (airspy_error) airspy_set_rf_bias(m_dev, (m_biasAnt ? 1 : 0));
if (rc != AIRSPY_SUCCESS)
{
std::ostringstream err_ostr;
err_ostr << "Could not set bias antenna to " << m_biasAnt;
m_error = err_ostr.str();
return false;
}
}
if (changeFlags & 0x40)
{
m_lnaAGC = lna_agc;
rc = (airspy_error) airspy_set_lna_agc(m_dev, (m_lnaAGC ? 1 : 0));
if (rc != AIRSPY_SUCCESS)
{
std::ostringstream err_ostr;
err_ostr << "Could not set LNA AGC to " << m_lnaAGC;
m_error = err_ostr.str();
return false;
}
}
if (changeFlags & 0x80)
{
m_mixAGC = mix_agc;
rc = (airspy_error) airspy_set_mixer_agc(m_dev, (m_mixAGC ? 1 : 0));
if (rc != AIRSPY_SUCCESS)
{
std::ostringstream err_ostr;
err_ostr << "Could not set mixer AGC to " << m_mixAGC;
m_error = err_ostr.str();
return false;
}
}
return true;
}