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Multi transceiver support

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This can be multiple transceivers on multiple sound cards.

Two transceivers can be bundled on one sound device as well, using both channels.
This commit is contained in:
Andreas Eversberg
2016-04-25 20:20:54 +02:00
parent de0ce7ba98
commit 7434e21dc2
20 changed files with 709 additions and 161 deletions
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40
src/bnetz/main.c
View File

@@ -37,7 +37,8 @@
#include "ansage.h"
int gfs = 2;
const char *pilot = "tone";
int num_pilot = 0;
const char *pilot[MAX_SENDER] = { "tone" };
double lossdetect = 0;
void print_help(const char *arg0)
@@ -49,13 +50,13 @@ void print_help(const char *arg0)
printf(" -P --pilot tone | positive | negative | <file>=<on>:<off>\n");
printf(" Send a tone, give a signal or write to a file when switching to\n");
printf(" channel 19. (paging the phone).\n");
printf(" 'tone', 'positive', 'negative' is sent on right audio channel.\n");
printf(" 'tone', 'positive', 'negative' is sent on second audio channel.\n");
printf(" 'tone' sends a tone whenever channel 19 is switchted.\n");
printf(" 'positive' sends a positive signal for channel 19, else negative.\n");
printf(" 'negative' sends a negative signal for channel 19, else positive.\n");
printf(" Example: /sys/class/gpio/gpio17/value=1:0 writes a '1' to\n");
printf(" /sys/class/gpio/gpio17/value to switching to channel 19 and a '0' to\n");
printf(" switch back. (default = %s)\n", pilot);
printf(" switch back. (default = %s)\n", pilot[0]);
printf(" -0 --loss <volume>\n");
printf(" Detect loss of carrier by detecting steady noise above given volume in\n");
printf(" percent. (disabled by default)\n");
@@ -90,7 +91,7 @@ static int handle_options(int argc, char **argv)
skip_args += 2;
break;
case 'P':
pilot = strdup(optarg);
OPT_ARRAY(num_pilot, pilot, strdup(optarg))
skip_args += 2;
break;
case '0':
@@ -110,6 +111,7 @@ int main(int argc, char *argv[])
int rc;
int skip_args;
const char *station_id = "";
int i;
/* init common tones */
init_freiton();
@@ -128,11 +130,23 @@ int main(int argc, char *argv[])
}
}
if (!kanal) {
if (!num_kanal) {
printf("No channel (\"Kanal\") is specified, I suggest channel 1.\n\n");
print_help(argv[-skip_args]);
return 0;
}
if (num_kanal == 1 && num_sounddev == 0)
num_sounddev = 1; /* use defualt */
if (num_kanal != num_sounddev) {
fprintf(stdout, "You need to specify as many sound devices as you have channels.\n");
exit(0);
}
if (num_kanal == 1 && num_pilot == 0)
num_pilot = 1; /* use defualt */
if (num_kanal != num_pilot) {
fprintf(stdout, "You need to specify as many pilot tone settings as you have channels.\n");
exit(0);
}
if (!loopback)
print_image();
@@ -154,15 +168,15 @@ int main(int argc, char *argv[])
}
/* create transceiver instance */
rc = bnetz_create(sounddev, samplerate, do_pre_emphasis, do_de_emphasis, write_wave, read_wave, kanal, gfs, loopback, (double)lossdetect / 100.0, pilot);
if (rc < 0) {
fprintf(stderr, "Failed to create \"Sender\" instance. Quitting!\n");
goto fail;
for (i = 0; i < num_kanal; i++) {
rc = bnetz_create(kanal[i], sounddev[i], samplerate, cross_channels, gfs, do_pre_emphasis, do_de_emphasis, write_wave, read_wave, loopback, (double)lossdetect / 100.0, pilot[i]);
if (rc < 0) {
fprintf(stderr, "Failed to create \"Sender\" instance. Quitting!\n");
goto fail;
}
printf("Base station for channel %d ready, please tune transmitter to %.3f MHz and receiver " "to %.3f MHz.\n", kanal[i], bnetz_kanal2freq(kanal[i], 0), bnetz_kanal2freq(kanal[i], 1));
printf("To call phone, switch transmitter (using pilot signal) to %.3f MHz.\n", bnetz_kanal2freq(19, 0));
}
printf("Base station ready, please tune transmitter to %.3f MHz and receiver "
"to %.3f MHz.\n", bnetz_kanal2freq(kanal, 0),
bnetz_kanal2freq(kanal, 1));
printf("To call phone, switch transmitter (using pilot signal) to %.3f MHz.\n", bnetz_kanal2freq(19, 0));
signal(SIGINT,sighandler);
signal(SIGHUP,sighandler);