SDR: Add option to swap RX and TX frequencies (for testing)
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@ -1,6 +1,7 @@
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extern int num_kanal;
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extern int kanal[];
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extern int swap_links;
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extern int num_audiodev;
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extern const char *audiodev[];
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extern int use_sdr;
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@ -78,6 +78,8 @@ const char *write_iq_tx_wave = NULL;
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const char *write_iq_rx_wave = NULL;
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const char *read_iq_tx_wave = NULL;
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const char *read_iq_rx_wave = NULL;
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int sdr_swap_links = 0;
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void print_help_common(const char *arg0, const char *ext_usage)
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{
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printf("Usage: %s -k <kanal/channel> %s[options] [station-id]\n", arg0, ext_usage);
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@ -179,6 +181,8 @@ void print_help_common(const char *arg0, const char *ext_usage)
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printf(" Replace received IQ data by given wave file.\n");
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printf(" --read-iq-tx-wave <file>\n");
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printf(" Replace transmitted IQ data by given wave file.\n");
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printf(" --sdr-swap-links\n");
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printf(" Swap RX and TX frequencies for loopback tests over the air.r\n");
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#endif
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printf("\nNetwork specific options:\n");
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}
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@ -220,6 +224,7 @@ void print_hotkeys_common(void)
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#define OPT_WRITE_IQ_TX_WAVE 1113
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#define OPT_READ_IQ_RX_WAVE 1114
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#define OPT_READ_IQ_TX_WAVE 1115
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#define OPT_SDR_SWAP_LINKS 1116
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static struct option long_options_common[] = {
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{"help", 0, 0, 'h'},
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@ -260,6 +265,7 @@ static struct option long_options_common[] = {
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{"write-iq-tx-wave", 1, 0, OPT_WRITE_IQ_TX_WAVE},
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{"read-iq-rx-wave", 1, 0, OPT_READ_IQ_RX_WAVE},
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{"read-iq-tx-wave", 1, 0, OPT_READ_IQ_TX_WAVE},
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{"sdr-swap-links", 0, 0, OPT_SDR_SWAP_LINKS},
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{0, 0, 0, 0}
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};
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@ -487,6 +493,10 @@ void opt_switch_common(int c, char *arg0, int *skip_args)
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read_iq_tx_wave = strdup(optarg);
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*skip_args += 2;
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break;
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case OPT_SDR_SWAP_LINKS:
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sdr_swap_links = 1;
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*skip_args += 1;
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break;
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default:
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exit (0);
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}
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@ -570,7 +580,7 @@ void main_common(int *quit, int latency, int interval, void (*myhandler)(void),
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sdr_samplerate = samplerate;
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if (sdr_bandwidth == 0.0)
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sdr_bandwidth = sdr_samplerate;
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rc = sdr_init(sdr_uhd, sdr_soapy, sdr_channel, sdr_device_args, sdr_stream_args, sdr_tune_args, sdr_tx_antenna, sdr_rx_antenna, sdr_tx_gain, sdr_rx_gain, sdr_samplerate, sdr_bandwidth, write_iq_tx_wave, write_iq_rx_wave, read_iq_tx_wave, read_iq_rx_wave, latspl);
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rc = sdr_init(sdr_uhd, sdr_soapy, sdr_channel, sdr_device_args, sdr_stream_args, sdr_tune_args, sdr_tx_antenna, sdr_rx_antenna, sdr_tx_gain, sdr_rx_gain, sdr_samplerate, sdr_bandwidth, write_iq_tx_wave, write_iq_rx_wave, read_iq_tx_wave, read_iq_rx_wave, latspl, sdr_swap_links);
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if (rc < 0)
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return;
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#endif
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@ -70,6 +70,7 @@ typedef struct sdr_thread {
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double max_fill_timer; /* timer to display/reset maximum fill */
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} sdr_thread_t;
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/* preferences */
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static int sdr_use_uhd, sdr_use_soapy;
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static int sdr_channel;
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static const char *sdr_device_args, *sdr_stream_args, *sdr_tune_args;
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@ -82,8 +83,9 @@ static int sdr_oversample;
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static int sdr_latspl;
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static int sdr_threads;
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static sdr_thread_t sdr_thread_read, sdr_thread_write;
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static int sdr_swap_links;
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int sdr_init(int sdr_uhd, int sdr_soapy, int channel, const char *device_args, const char *stream_args, const char *tune_args, const char *tx_antenna, const char *rx_antenna, double tx_gain, double rx_gain, int samplerate, double bandwidth, const char *write_iq_tx_wave, const char *write_iq_rx_wave, const char *read_iq_tx_wave, const char *read_iq_rx_wave, int latspl)
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int sdr_init(int sdr_uhd, int sdr_soapy, int channel, const char *device_args, const char *stream_args, const char *tune_args, const char *tx_antenna, const char *rx_antenna, double tx_gain, double rx_gain, int samplerate, double bandwidth, const char *write_iq_tx_wave, const char *write_iq_rx_wave, const char *read_iq_tx_wave, const char *read_iq_rx_wave, int latspl, int swap_links)
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{
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PDEBUG(DSDR, DEBUG_DEBUG, "Init SDR\n");
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@ -106,6 +108,7 @@ int sdr_init(int sdr_uhd, int sdr_soapy, int channel, const char *device_args, c
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sdr_samplerate = samplerate;
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sdr_oversample = 1;
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sdr_latspl = latspl;
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sdr_swap_links = swap_links;
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return 0;
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}
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@ -312,6 +315,14 @@ void *sdr_open(const char __attribute__((__unused__)) *audiodev, double *tx_freq
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}
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}
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if (sdr_swap_links) {
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double temp;
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PDEBUG(DSDR, DEBUG_NOTICE, "Sapping RX and TX frequencies!\n");
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temp = rx_center_frequency;
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rx_center_frequency = tx_center_frequency;
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tx_center_frequency = temp;
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}
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#ifdef HAVE_UHD
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if (sdr_use_uhd) {
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rc = uhd_open(sdr_channel, sdr_device_args, sdr_stream_args, sdr_tune_args, sdr_tx_antenna, sdr_rx_antenna, tx_center_frequency, rx_center_frequency, sdr_samplerate, sdr_tx_gain, sdr_rx_gain, sdr_bandwidth);
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@ -1,5 +1,5 @@
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int sdr_init(int sdr_uhd, int sdr_soapy, int channel, const char *device_args, const char *stream_args, const char *tune_args, const char *tx_antenna, const char *rx_antenna, double tx_gain, double rx_gain, int samplerate, double bandwidth, const char *write_iq_tx_wave, const char *write_iq_rx_wave, const char *read_iq_tx_wave, const char *read_iq_rx_wave, int latspl);
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int sdr_init(int sdr_uhd, int sdr_soapy, int channel, const char *device_args, const char *stream_args, const char *tune_args, const char *tx_antenna, const char *rx_antenna, double tx_gain, double rx_gain, int samplerate, double bandwidth, const char *write_iq_tx_wave, const char *write_iq_rx_wave, const char *read_iq_tx_wave, const char *read_iq_rx_wave, int latspl, int swap_links);
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int sdr_start(void *inst);
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void *sdr_open(const char *audiodev, double *tx_frequency, double *rx_frequency, int channels, double paging_frequency, int samplerate, double bandwidth, double sample_deviation);
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void sdr_close(void *inst);
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