mirror of https://github.com/drowe67/librtlsdr.git
Joseph Poirier
commit
9d5384aab9
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@ -143,6 +143,13 @@ RTLSDR_API int rtlsdr_write_eeprom(rtlsdr_dev_t *dev, uint8_t *data,
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RTLSDR_API int rtlsdr_read_eeprom(rtlsdr_dev_t *dev, uint8_t *data,
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uint8_t offset, uint16_t len);
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/*!
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* Set the frequency the device is tuned to.
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*
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* \param dev the device handle given by rtlsdr_open()
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* \param frequency in Hz
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* \return 0 on error, frequency in Hz otherwise
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*/
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RTLSDR_API int rtlsdr_set_center_freq(rtlsdr_dev_t *dev, uint32_t freq);
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/*!
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@ -162,18 +162,21 @@ int verbose_set_sample_rate(rtlsdr_dev_t *dev, uint32_t samp_rate)
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int verbose_set_bandwidth(rtlsdr_dev_t *dev, uint32_t bandwidth)
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{
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int r;
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uint32_t applied_bw = 0;
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/* r = rtlsdr_set_tuner_bandwidth(dev, bandwidth); */
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r = rtlsdr_set_and_get_tuner_bandwidth(dev, bandwidth, &applied_bw, 1 /* =apply_bw */);
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if (r < 0) {
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fprintf(stderr, "WARNING: Failed to set bandwidth.\n");
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} else if (bandwidth > 0) {
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fprintf(stderr, "Bandwidth set to %u Hz resulted in %u Hz.\n", bandwidth, applied_bw);
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} else {
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fprintf(stderr, "Bandwidth set to automatic resulted in %u Hz.\n", applied_bw);
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}
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return r;
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int r;
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uint32_t applied_bw = 0;
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/* r = rtlsdr_set_tuner_bandwidth(dev, bandwidth); */
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r = rtlsdr_set_and_get_tuner_bandwidth(dev, bandwidth, &applied_bw, 1 /* =apply_bw */);
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if (r < 0) {
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fprintf(stderr, "WARNING: Failed to set bandwidth.\n");
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} else if (bandwidth > 0) {
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if (applied_bw)
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fprintf(stderr, "Bandwidth parameter %u Hz resulted in %u Hz.\n", bandwidth, applied_bw);
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else
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fprintf(stderr, "Set bandwidth parameter %u Hz.\n", bandwidth);
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} else {
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fprintf(stderr, "Bandwidth set to automatic resulted in %u Hz.\n", applied_bw);
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}
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return r;
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}
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int verbose_direct_sampling(rtlsdr_dev_t *dev, int on)
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@ -198,7 +201,12 @@ int verbose_offset_tuning(rtlsdr_dev_t *dev)
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int r;
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r = rtlsdr_set_offset_tuning(dev, 1);
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if (r != 0) {
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fprintf(stderr, "WARNING: Failed to set offset tuning.\n");
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if ( r == -2 )
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fprintf(stderr, "WARNING: Failed to set offset tuning: tuner doesn't support offset tuning!\n");
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else if ( r == -3 )
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fprintf(stderr, "WARNING: Failed to set offset tuning: direct sampling not combinable with offset tuning!\n");
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else
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fprintf(stderr, "WARNING: Failed to set offset tuning.\n");
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} else {
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fprintf(stderr, "Offset tuning mode enabled.\n");
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}
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@ -108,7 +108,7 @@ struct dongle_state
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int dev_index;
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uint32_t freq;
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uint32_t rate;
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uint32_t bandwidth;
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uint32_t bandwidth;
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int gain;
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int16_t buf16[MAXIMUM_BUF_LENGTH];
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uint32_t buf_len;
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@ -197,15 +197,15 @@ void usage(void)
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"\t-f frequency_to_tune_to [Hz]\n"
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"\t use multiple -f for scanning (requires squelch)\n"
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"\t ranges supported, -f 118M:137M:25k\n"
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"\t[-v verbosity (default: 0)]\n"
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"\t[-v increase verbosity (default: 0)]\n"
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"\t[-M modulation (default: fm)]\n"
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"\t fm or nbfm or nfm, wbfm or wfm, raw or iq, am, usb, lsb\n"
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"\t wbfm == -M fm -s 170k -o 4 -A fast -r 32k -l 0 -E deemp\n"
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"\t raw mode outputs 2x16 bit IQ pairs\n"
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"\t[-s sample_rate (default: 24k)]\n"
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"\t[-d device_index (default: 0)]\n"
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"\t[-g tuner_gain (default: automatic)]\n"
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"\t[-w tuner_bandwidth (default: automatic)]\n"
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"\t[-g tuner_gain (default: automatic)]\n"
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"\t[-w tuner_bandwidth (default: automatic. enables offset tuning)]\n"
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"\t[-l squelch_level (default: 0/off)]\n"
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"\t[-L N prints levels every N calculations]\n"
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"\t output are comma separated values (csv):\n"
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@ -217,12 +217,14 @@ void usage(void)
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"\t[-E enable_option (default: none)]\n"
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"\t use multiple -E to enable multiple options\n"
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"\t edge: enable lower edge tuning\n"
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"\t rdc: enable dc blocking filter on raw I/Q data at capture rate\n"
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"\t adc: enable dc blocking filter on demodulated audio\n"
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"\t dc: same as adc\n"
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"\t rdc: enable dc blocking filter on raw I/Q data at capture rate\n"
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"\t adc: enable dc blocking filter on demodulated audio\n"
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"\t dc: same as adc\n"
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"\t rtlagc: enable rtl2832's digital agc (default: off)\n"
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"\t agc: same as rtlagc\n"
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"\t deemp: enable de-emphasis filter\n"
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"\t direct: enable direct sampling\n"
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"\t offset: enable offset tuning\n"
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"\t direct: enable direct sampling (bypasses tuner, uses rtl2832 xtal)\n"
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"\t offset: enable offset tuning (only e4000 tuner)\n"
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"\t[-q dc_avg_factor for option rdc (default: 9)]\n"
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"\tfilename ('-' means stdout)\n"
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"\t omitting the filename also uses stdout\n\n"
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@ -986,7 +988,7 @@ static void *controller_thread_fn(void *arg)
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if (s->wb_mode) {
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if (verbosity)
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fprintf(stderr, "wbfm: adding 16000 Hz to every intput frequency\n");
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fprintf(stderr, "wbfm: adding 16000 Hz to every input frequency\n");
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for (i=0; i < s->freq_len; i++) {
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s->freqs[i] += 16000;}
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}
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@ -1001,7 +1003,8 @@ static void *controller_thread_fn(void *arg)
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/* Set the frequency */
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if (verbosity) {
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fprintf(stderr, "verbose_set_frequency(%.0f Hz)\n", (double)dongle.freq);
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fprintf(stderr, " frequency is away from parametrized one, to avoid negative impact from dc\n");
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if (!dongle.offset_tuning)
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fprintf(stderr, " frequency is away from parametrized one, to avoid negative impact from dc\n");
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}
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verbose_set_frequency(dongle.dev, dongle.freq);
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fprintf(stderr, "Oversampling input by: %ix.\n", demod.downsample);
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@ -1158,12 +1161,13 @@ int main(int argc, char **argv)
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int dev_given = 0;
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int custom_ppm = 0;
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int timeConstant = 75; /* default: U.S. 75 uS */
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int rtlagc = 0;
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dongle_init(&dongle);
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demod_init(&demod);
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output_init(&output);
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controller_init(&controller);
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while ((opt = getopt(argc, argv, "d:f:g:s:b:l:L:o:t:r:p:E:q:F:A:M:c:v:h:w:")) != -1) {
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while ((opt = getopt(argc, argv, "d:f:g:s:b:l:L:o:t:r:p:E:q:F:A:M:c:h:w:v")) != -1) {
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switch (opt) {
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case 'd':
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dongle.dev_index = verbose_device_search(optarg);
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@ -1227,6 +1231,8 @@ int main(int argc, char **argv)
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dongle.direct_sampling = 1;}
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if (strcmp("offset", optarg) == 0) {
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dongle.offset_tuning = 1;}
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if (strcmp("rtlagc", optarg) == 0 || strcmp("agc", optarg) == 0) {
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rtlagc = 1;}
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break;
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case 'q':
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demod.rdc_block_const = atoi(optarg);
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@ -1275,18 +1281,24 @@ int main(int argc, char **argv)
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timeConstant = (int)atof(optarg);
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break;
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case 'v':
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verbosity = (int)atof(optarg);
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++verbosity;
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break;
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case 'w':
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dongle.bandwidth = (uint32_t)atofs(optarg);
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if (dongle.bandwidth)
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dongle.offset_tuning = 1; /* automatically switch offset tuning, when using bandwidth filter */
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break;
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case 'w':
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dongle.bandwidth = (uint32_t)atofs(optarg);
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break;
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case 'h':
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case '?':
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default:
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usage();
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break;
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}
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}
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if (verbosity)
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fprintf(stderr, "verbosity set to %d\n", verbosity);
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/* quadruple sample_rate to limit to Δθ to ±π/2 */
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demod.rate_in *= demod.post_downsample;
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@ -1346,24 +1358,25 @@ int main(int argc, char **argv)
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verbose_gain_set(dongle.dev, dongle.gain);
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}
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rtlsdr_set_agc_mode(dongle.dev, rtlagc);
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verbose_ppm_set(dongle.dev, dongle.ppm_error);
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verbose_set_bandwidth(dongle.dev, dongle.bandwidth);
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verbose_set_bandwidth(dongle.dev, dongle.bandwidth);
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if (verbosity && dongle.bandwidth)
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{
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int r;
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uint32_t in_bw, out_bw, last_bw = 0;
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for ( in_bw = 1; in_bw < 3200; ++in_bw )
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{
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r = rtlsdr_set_and_get_tuner_bandwidth(dongle.dev, in_bw*1000, &out_bw, 0 /* =apply_bw */);
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if ( r == 0 && ( out_bw != last_bw || in_bw == 1 ) )
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fprintf(stderr, "device sets bandwidth %u Hz for bw para >= %u kHz\n", out_bw, in_bw );
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last_bw = out_bw;
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}
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fprintf(stderr,"\n");
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int r;
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uint32_t in_bw, out_bw, last_bw = 0;
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fprintf(stderr, "Supported bandwidth values in kHz:\n");
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for ( in_bw = 1; in_bw < 3200; ++in_bw )
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{
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r = rtlsdr_set_and_get_tuner_bandwidth(dongle.dev, in_bw*1000, &out_bw, 0 /* =apply_bw */);
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if ( r == 0 && out_bw != 0 && ( out_bw != last_bw || in_bw == 1 ) )
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fprintf(stderr, "%s%.1f", (in_bw==1 ? "" : ", "), out_bw/1000.0 );
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last_bw = out_bw;
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}
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fprintf(stderr,"\n");
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}
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if (strcmp(output.filename, "-") == 0) { /* Write samples to stdout */
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@ -78,6 +78,8 @@ typedef struct { /* structure size must be multiple of 2 bytes */
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static rtlsdr_dev_t *dev = NULL;
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static int verbosity = 0;
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static uint32_t bandwidth = 0;
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static int global_numq = 0;
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static struct llist *ll_buffers = 0;
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static int llbuf_num = 500;
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@ -94,9 +96,10 @@ void usage(void)
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"\t[-s samplerate in Hz (default: 2048000 Hz)]\n"
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"\t[-b number of buffers (default: 15, set by library)]\n"
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"\t[-n max number of linked list buffers to keep (default: 500)]\n"
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"\t[-w rtlsdr device bandwidth (for R820T device)\n"
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"\t[-w rtlsdr device bandwidth [Hz] (for R820T device)]\n"
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"\t[-d device index (default: 0)]\n"
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"\t[-P ppm_error (default: 0)]\n");
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"\t[-P ppm_error (default: 0)]\n"
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"\t[-v increase verbosity (default: 0)]\n");
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exit(1);
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}
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@ -203,7 +206,7 @@ static void *tcp_worker(void *arg)
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pthread_mutex_lock(&ll_mutex);
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gettimeofday(&tp, NULL);
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ts.tv_sec = tp.tv_sec+5;
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ts.tv_sec = tp.tv_sec+1;
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ts.tv_nsec = tp.tv_usec * 1000;
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r = pthread_cond_timedwait(&cond, &ll_mutex, &ts);
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if(r == ETIMEDOUT) {
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@ -257,6 +260,8 @@ static int set_gain_by_index(rtlsdr_dev_t *_dev, unsigned int index)
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count = rtlsdr_get_tuner_gains(_dev, gains);
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res = rtlsdr_set_tuner_gain(_dev, gains[index]);
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if (verbosity)
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fprintf(stderr, "set tuner gain to %.1f dB\n", gains[index] / 10.0);
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free(gains);
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}
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@ -310,6 +315,7 @@ static void *command_worker(void *arg)
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case SET_SAMPLE_RATE:
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printf("set sample rate %d\n", ntohl(cmd.param));
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rtlsdr_set_sample_rate(dev, ntohl(cmd.param));
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/*verbose_set_bandwidth(dev, bandwidth);*/
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break;
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case SET_GAIN_MODE:
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printf("set gain mode %d\n", ntohl(cmd.param));
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@ -356,10 +362,11 @@ static void *command_worker(void *arg)
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printf("set tuner gain by index %d\n", ntohl(cmd.param));
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set_gain_by_index(dev, ntohl(cmd.param));
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break;
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case SET_TUNER_BANDWIDTH:
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printf("set tuner bandwidth to %i Hz\n", ntohl(cmd.param));
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rtlsdr_set_tuner_bandwidth(dev, ntohl(cmd.param));
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break;
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case SET_TUNER_BANDWIDTH:
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bandwidth = ntohl(cmd.param);
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printf("set tuner bandwidth to %i Hz\n", bandwidth);
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verbose_set_bandwidth(dev, bandwidth);
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break;
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default:
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break;
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}
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@ -372,7 +379,7 @@ int main(int argc, char **argv)
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int r, opt, i;
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char* addr = "127.0.0.1";
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int port = 1234;
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uint32_t frequency = 100000000, samp_rate = 2048000, bandwidth = 0;
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uint32_t frequency = 100000000, samp_rate = 2048000;
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struct sockaddr_in local, remote;
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uint32_t buf_num = 0;
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int dev_index = 0;
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@ -389,6 +396,7 @@ int main(int argc, char **argv)
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fd_set readfds;
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u_long blockmode = 1;
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dongle_info_t dongle_info;
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int gains[100];
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#ifdef _WIN32
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WSADATA wsd;
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i = WSAStartup(MAKEWORD(2,2), &wsd);
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@ -396,7 +404,7 @@ int main(int argc, char **argv)
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struct sigaction sigact, sigign;
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#endif
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while ((opt = getopt(argc, argv, "a:p:f:g:s:b:n:d:P:w:")) != -1) {
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while ((opt = getopt(argc, argv, "a:p:f:g:s:b:n:d:P:w:v")) != -1) {
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switch (opt) {
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case 'd':
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dev_index = verbose_device_search(optarg);
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@ -425,9 +433,12 @@ int main(int argc, char **argv)
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break;
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case 'P':
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ppm_error = atoi(optarg);
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break;
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case 'w':
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bandwidth = (uint32_t)atofs(optarg);
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break;
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case 'w':
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bandwidth = (uint32_t)atofs(optarg);
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break;
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case 'v':
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++verbosity;
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break;
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default:
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usage();
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@ -438,6 +449,9 @@ int main(int argc, char **argv)
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if (argc < optind)
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usage();
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if (verbosity)
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fprintf(stderr, "verbosity set to %d\n", verbosity);
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if (!dev_given) {
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dev_index = verbose_device_search("0");
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}
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@ -499,13 +513,7 @@ int main(int argc, char **argv)
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fprintf(stderr, "Tuner gain set to %f dB.\n", gain/10.0);
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}
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r = rtlsdr_set_tuner_bandwidth(dev, bandwidth);
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if (r < 0)
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fprintf(stderr, "WARNING: Failed to set tuner bandwidth.\n");
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else if (bandwidth != 0)
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fprintf(stderr, "Tuner bandwidth set to %i.\n", bandwidth);
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else
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fprintf(stderr, "Tuner bandwidth set to automatic.\n");
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verbose_set_bandwidth(dev, bandwidth);
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/* Reset endpoint before we start reading from it (mandatory) */
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r = rtlsdr_reset_buffer(dev);
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@ -571,9 +579,16 @@ int main(int argc, char **argv)
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if (r >= 0)
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dongle_info.tuner_type = htonl(r);
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r = rtlsdr_get_tuner_gains(dev, NULL);
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r = rtlsdr_get_tuner_gains(dev, gains);
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if (r >= 0)
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dongle_info.tuner_gain_count = htonl(r);
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if (verbosity)
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{
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fprintf(stderr, "Supported gain values (%d): ", r);
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for (i = 0; i < r; i++)
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fprintf(stderr, "%.1f ", gains[i] / 10.0);
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fprintf(stderr, "\n");
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}
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r = send(s, (const char *)&dongle_info, sizeof(dongle_info), 0);
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if (sizeof(dongle_info) != r)
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