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SDR: Add option to set IF bandwidth. If not defined, sampling rate is used.

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This commit is contained in:
Andreas Eversberg
2017-03-18 09:30:26 +01:00
parent 1445ca2fac
commit 9dda9e1efc
7 changed files with 91 additions and 16 deletions
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21
src/common/main_common.c
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@@ -62,6 +62,7 @@ const char *write_rx_wave = NULL;
const char *write_tx_wave = NULL;
const char *read_rx_wave = NULL;
static const char *sdr_args = "";
static double sdr_bandwidth = 0.0;
static int sdr_uhd = 0;
static int sdr_soapy = 0;
double sdr_rx_gain = 0, sdr_tx_gain = 0;
@@ -139,6 +140,8 @@ void print_help_common(const char *arg0, const char *ext_usage)
printf(" --sdr-args <args>\n");
printf(" Optional SDR device arguments, seperated by comma\n");
printf(" e.g. --sdr-args <key>=<value>[,<key>=<value>[,...]]\n");
printf(" --sdr-bandwidth <bandwidth>\n");
printf(" Give IF filter bandwidth to use. If not, sample rate is used.\n");
printf(" --sdr-rx-gain <gain>\n");
printf(" SDR device's RX gain in dB (default = %.1f)\n", sdr_rx_gain);
printf(" --sdr-tx-gain <gain>\n");
@@ -174,10 +177,11 @@ void print_hotkeys_common(void)
#define OPT_SDR_ARGS 1102
#define OPT_SDR_RX_GAIN 1103
#define OPT_SDR_TX_GAIN 1104
#define OPT_WRITE_IQ_RX_WAVE 1105
#define OPT_WRITE_IQ_TX_WAVE 1106
#define OPT_READ_IQ_RX_WAVE 1107
#define OPT_READ_IQ_TX_WAVE 1108
#define OPT_SDR_BANDWIDTH 1105
#define OPT_WRITE_IQ_RX_WAVE 1106
#define OPT_WRITE_IQ_TX_WAVE 1107
#define OPT_READ_IQ_RX_WAVE 1108
#define OPT_READ_IQ_TX_WAVE 1109
static struct option long_options_common[] = {
{"help", 0, 0, 'h'},
@@ -203,6 +207,7 @@ static struct option long_options_common[] = {
{"sdr-uhd", 0, 0, OPT_SDR_UHD},
{"sdr-soapy", 0, 0, OPT_SDR_SOAPY},
{"sdr-args", 1, 0, OPT_SDR_ARGS},
{"sdr-bandwidth", 1, 0, OPT_SDR_BANDWIDTH},
{"sdr-rx-gain", 1, 0, OPT_SDR_RX_GAIN},
{"sdr-tx-gain", 1, 0, OPT_SDR_TX_GAIN},
{"write-iq-rx-wave", 1, 0, OPT_WRITE_IQ_RX_WAVE},
@@ -364,6 +369,10 @@ void opt_switch_common(int c, char *arg0, int *skip_args)
sdr_args = strdup(optarg);
*skip_args += 2;
break;
case OPT_SDR_BANDWIDTH:
sdr_bandwidth = atof(optarg);
*skip_args += 2;
break;
case OPT_SDR_RX_GAIN:
sdr_rx_gain = atof(optarg);
*skip_args += 2;
@@ -470,7 +479,9 @@ void main_common(int *quit, int latency, int interval, void (*myhandler)(void),
#endif
#ifdef HAVE_SDR
rc = sdr_init(sdr_uhd, sdr_soapy, sdr_args, sdr_rx_gain, sdr_tx_gain, write_iq_rx_wave, write_iq_tx_wave, read_iq_rx_wave, read_iq_tx_wave);
if (sdr_bandwidth == 0.0)
sdr_bandwidth = samplerate;
rc = sdr_init(sdr_uhd, sdr_soapy, sdr_args, sdr_rx_gain, sdr_tx_gain, sdr_bandwidth, write_iq_rx_wave, write_iq_tx_wave, read_iq_rx_wave, read_iq_tx_wave);
if (rc < 0)
return;
#endif