dump1090/sdr.c

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#include "dump1090.h"
#include "sdr.h"
#define ENABLE_RTLSDR
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#define ENABLE_BLADERF
#include "sdr_ifile.h"
#ifdef ENABLE_RTLSDR
# include "sdr_rtlsdr.h"
#endif
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#ifdef ENABLE_BLADERF
# include "sdr_bladerf.h"
#endif
typedef struct {
const char *name;
sdr_type_t sdr_type;
void (*initConfig)();
void (*showHelp)();
bool (*handleOption)(int, char**, int*);
bool (*open)();
void (*run)();
void (*close)();
} sdr_handler;
static void noInitConfig()
{
}
static void noShowHelp()
{
}
static bool noHandleOption(int argc, char **argv, int *jptr)
{
MODES_NOTUSED(argc);
MODES_NOTUSED(argv);
MODES_NOTUSED(jptr);
return false;
}
static bool noOpen()
{
fprintf(stderr, "Net-only mode, no SDR device or file open.\n");
return true;
}
static void noRun()
{
}
static void noClose()
{
}
static bool unsupportedOpen()
{
fprintf(stderr, "Support for this SDR type was not enabled in this build.\n");
return false;
}
static sdr_handler sdr_handlers[] = {
#ifdef ENABLE_RTLSDR
{ "rtlsdr", SDR_RTLSDR, rtlsdrInitConfig, rtlsdrShowHelp, rtlsdrHandleOption, rtlsdrOpen, rtlsdrRun, rtlsdrClose },
#endif
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#ifdef ENABLE_BLADERF
{ "bladerf", SDR_BLADERF, bladeRFInitConfig, bladeRFShowHelp, bladeRFHandleOption, bladeRFOpen, bladeRFRun, bladeRFClose },
#endif
{ "ifile", SDR_IFILE, ifileInitConfig, ifileShowHelp, ifileHandleOption, ifileOpen, ifileRun, ifileClose },
{ "none", SDR_NONE, noInitConfig, noShowHelp, noHandleOption, noOpen, noRun, noClose },
{ NULL, SDR_NONE, NULL, NULL, NULL, NULL, NULL, NULL } /* must come last */
};
void sdrInitConfig()
{
// Default SDR is the first type available in the handlers array.
Modes.sdr_type = sdr_handlers[0].sdr_type;
for (int i = 0; sdr_handlers[i].name; ++i) {
sdr_handlers[i].initConfig();
}
}
void sdrShowHelp()
{
printf("--device-type <type> Select SDR type (default: %s)\n", sdr_handlers[0].name);
printf("\n");
for (int i = 0; sdr_handlers[i].name; ++i) {
sdr_handlers[i].showHelp();
}
}
bool sdrHandleOption(int argc, char **argv, int *jptr)
{
int j = *jptr;
if (!strcmp(argv[j], "--device-type") && (j+1) < argc) {
++j;
for (int i = 0; sdr_handlers[i].name; ++i) {
if (!strcasecmp(sdr_handlers[i].name, argv[j])) {
Modes.sdr_type = sdr_handlers[i].sdr_type;
*jptr = j;
return true;
}
}
fprintf(stderr, "SDR type '%s' not recognized; supported SDR types are:\n", argv[j]);
for (int i = 0; sdr_handlers[i].name; ++i) {
fprintf(stderr, " %s\n", sdr_handlers[i].name);
}
return false;
}
for (int i = 0; sdr_handlers[i].name; ++i) {
if (sdr_handlers[i].handleOption(argc, argv, jptr))
return true;
}
return false;
}
static sdr_handler *current_handler()
{
static sdr_handler unsupported_handler = { "unsupported", SDR_NONE, noInitConfig, noShowHelp, noHandleOption, unsupportedOpen, noRun, noClose };
for (int i = 0; sdr_handlers[i].name; ++i) {
if (Modes.sdr_type == sdr_handlers[i].sdr_type) {
return &sdr_handlers[i];
}
}
return &unsupported_handler;
}
bool sdrOpen()
{
return current_handler()->open();
}
void sdrRun()
{
return current_handler()->run();
}
void sdrClose()
{
current_handler()->close();
}