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utils: convenience functions

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Signed-off-by: Steve Markgraf <steve@steve-m.de>
This commit is contained in:
Kyle Keen
2014-01-21 00:49:05 -05:00
committed by Steve Markgraf
parent 003bd51167
commit 27c0929939
10 changed files with 590 additions and 358 deletions
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64
src/rtl_adsb.c
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@ -41,6 +41,7 @@
#include <libusb.h>
#include "rtl-sdr.h"
#include "convenience/convenience.h"
#ifdef _WIN32
#define sleep Sleep
@ -362,10 +363,9 @@ int main(int argc, char **argv)
char *filename = NULL;
int n_read, r, opt;
int i, gain = AUTO_GAIN; /* tenths of a dB */
uint32_t dev_index = 0;
int device_count;
int dev_index = 0;
int dev_given = 0;
int ppm_error = 0;
char vendor[256], product[256], serial[256];
pthread_mutex_init(&data_ready, NULL);
squares_precompute();
@ -373,7 +373,8 @@ int main(int argc, char **argv)
{
switch (opt) {
case 'd':
dev_index = atoi(optarg);
dev_index = verbose_device_search(optarg);
dev_given = 1;
break;
case 'g':
gain = (int)(atof(optarg) * 10);
@ -407,23 +408,15 @@ int main(int argc, char **argv)
buffer = malloc(DEFAULT_BUF_LENGTH * sizeof(uint8_t));
device_count = rtlsdr_get_device_count();
if (!device_count) {
fprintf(stderr, "No supported devices found.\n");
if (!dev_given) {
dev_index = verbose_device_search("0");
}
if (dev_index < 0) {
exit(1);
}
fprintf(stderr, "Found %d device(s):\n", device_count);
for (i = 0; i < device_count; i++) {
rtlsdr_get_device_usb_strings(i, vendor, product, serial);
fprintf(stderr, " %d: %s, %s, SN: %s\n", i, vendor, product, serial);
}
fprintf(stderr, "\n");
fprintf(stderr, "Using device %d: %s\n",
dev_index, rtlsdr_get_device_name(dev_index));
r = rtlsdr_open(&dev, dev_index);
r = rtlsdr_open(&dev, (uint32_t)dev_index);
if (r < 0) {
fprintf(stderr, "Failed to open rtlsdr device #%d.\n", dev_index);
exit(1);
@ -456,50 +449,29 @@ int main(int argc, char **argv)
/* Set the tuner gain */
if (gain == AUTO_GAIN) {
r = rtlsdr_set_tuner_gain_mode(dev, 0);
verbose_auto_gain(dev);
} else {
r = rtlsdr_set_tuner_gain_mode(dev, 1);
r = rtlsdr_set_tuner_gain(dev, gain);
}
if (r != 0) {
fprintf(stderr, "WARNING: Failed to set tuner gain.\n");
} else if (gain == AUTO_GAIN) {
fprintf(stderr, "Tuner gain set to automatic.\n");
} else {
fprintf(stderr, "Tuner gain set to %0.2f dB.\n", gain/10.0);
gain = nearest_gain(dev, gain);
verbose_gain_set(dev, gain);
}
r = rtlsdr_set_freq_correction(dev, ppm_error);
verbose_ppm_set(dev, ppm_error);
r = rtlsdr_set_agc_mode(dev, 1);
/* Set the tuner frequency */
r = rtlsdr_set_center_freq(dev, ADSB_FREQ);
if (r < 0) {
fprintf(stderr, "WARNING: Failed to set center freq.\n");}
else {
fprintf(stderr, "Tuned to %u Hz.\n", ADSB_FREQ);}
verbose_set_frequency(dev, ADSB_FREQ);
/* Set the sample rate */
fprintf(stderr, "Sampling at %u Hz.\n", ADSB_RATE);
r = rtlsdr_set_sample_rate(dev, ADSB_RATE);
if (r < 0) {
fprintf(stderr, "WARNING: Failed to set sample rate.\n");}
verbose_set_sample_rate(dev, ADSB_RATE);
/* Reset endpoint before we start reading from it (mandatory) */
r = rtlsdr_reset_buffer(dev);
if (r < 0) {
fprintf(stderr, "WARNING: Failed to reset buffers.\n");}
/* flush old junk */
sleep(1);
rtlsdr_read_sync(dev, NULL, 4096, NULL);
verbose_reset_buffer(dev);
pthread_create(&demod_thread, NULL, demod_thread_fn, (void *)(NULL));
rtlsdr_read_async(dev, rtlsdr_callback, (void *)(NULL),
DEFAULT_ASYNC_BUF_NUMBER,
DEFAULT_BUF_LENGTH);
if (do_exit) {
fprintf(stderr, "\nUser cancel, exiting...\n");}
else {