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SDR: Add clock source selection, untested yet

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This commit is contained in:
Andreas Eversberg
2018-06-24 11:36:56 +02:00
parent 0a3e11d8a8
commit b7046a5283
7 changed files with 121 additions and 19 deletions
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40
src/libsdr/soapy.c
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@@ -62,10 +62,10 @@ static int parse_args(SoapySDRKwargs *args, const char *_args_string)
return 0;
}
int soapy_open(size_t channel, const char *_device_args, const char *_stream_args, const char *_tune_args, const char *tx_antenna, const char *rx_antenna, double tx_frequency, double rx_frequency, double lo_offset, double rate, double tx_gain, double rx_gain, double bandwidth)
int soapy_open(size_t channel, const char *_device_args, const char *_stream_args, const char *_tune_args, const char *tx_antenna, const char *rx_antenna, const char *clock_source, double tx_frequency, double rx_frequency, double lo_offset, double rate, double tx_gain, double rx_gain, double bandwidth)
{
double got_frequency, got_rate, got_gain, got_bandwidth;
const char *got_antenna;
const char *got_antenna, *got_clock;
size_t num_channels;
SoapySDRKwargs device_args;
SoapySDRKwargs stream_args;
@@ -103,6 +103,42 @@ int soapy_open(size_t channel, const char *_device_args, const char *_stream_arg
return -EIO;
}
/* clock source */
if (clock_source && clock_source[0]) {
if (!strcasecmp(clock_source, "list")) {
char **clocks;
size_t clocks_length;
int i;
clocks = SoapySDRDevice_listClockSources(sdr, &clocks_length);
if (!clocks) {
PDEBUG(DSOAPY, DEBUG_ERROR, "Failed to request list of clock sources!\n");
soapy_close();
return -EIO;
}
if (clocks_length) {
for (i = 0; i < (int)clocks_length; i++)
PDEBUG(DSOAPY, DEBUG_NOTICE, "Clock source: '%s'\n", clocks[i]);
got_clock = SoapySDRDevice_getClockSource(sdr);
PDEBUG(DSOAPY, DEBUG_NOTICE, "Default clock source: '%s'\n", got_clock);
} else
PDEBUG(DSOAPY, DEBUG_NOTICE, "There are no clock sources configurable for this device.\n");
soapy_close();
return 1;
}
if (SoapySDRDevice_setClockSource(sdr, clock_source) != 0) {
PDEBUG(DSOAPY, DEBUG_ERROR, "Failed to set clock source to '%s'\n", clock_source);
soapy_close();
return -EIO;
}
got_clock = SoapySDRDevice_getClockSource(sdr);
if (!!strcasecmp(clock_source, got_clock)) {
PDEBUG(DSOAPY, DEBUG_NOTICE, "Given clock source '%s' was accepted, but driver claims to use '%s'\n", clock_source, got_clock);
soapy_close();
return -EINVAL;
}
}
if (rx_frequency) {
/* get number of channels and check if requested channel is in range */
num_channels = SoapySDRDevice_getNumChannels(sdr, SOAPY_SDR_RX);