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-rw-r--r--utils/rtl_tcp.c119
1 files changed, 88 insertions, 31 deletions
diff --git a/utils/rtl_tcp.c b/utils/rtl_tcp.c
index 317e0f3..84f5591 100644
--- a/utils/rtl_tcp.c
+++ b/utils/rtl_tcp.c
@@ -30,10 +30,12 @@
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
+#include <netdb.h>
#include <netinet/in.h>
#include <fcntl.h>
#else
#include <winsock2.h>
+#include <ws2tcpip.h>
#include "getopt/getopt.h"
#endif
@@ -54,6 +56,10 @@ typedef int socklen_t;
#define SOCKET_ERROR -1
#endif
+#define DEFAULT_PORT_STR "1234"
+#define DEFAULT_SAMPLE_RATE_HZ 2048000
+#define DEFAULT_MAX_NUM_BUFFERS 500
+
static SOCKET s;
static pthread_t tcp_worker_thread;
@@ -78,24 +84,27 @@ typedef struct { /* structure size must be multiple of 2 bytes */
static rtlsdr_dev_t *dev = NULL;
+static int enable_biastee = 0;
static int global_numq = 0;
static struct llist *ll_buffers = 0;
-static int llbuf_num = 500;
+static int llbuf_num = DEFAULT_MAX_NUM_BUFFERS;
static volatile int do_exit = 0;
+
void usage(void)
{
- printf("rtl_tcp, an I/Q spectrum server for RTL2832 based DVB-T receivers\n\n"
- "Usage:\t[-a listen address]\n"
- "\t[-p listen port (default: 1234)]\n"
- "\t[-f frequency to tune to [Hz]]\n"
- "\t[-g gain (default: 0 for auto)]\n"
- "\t[-s samplerate in Hz (default: 2048000 Hz)]\n"
- "\t[-b number of buffers (default: 15, set by library)]\n"
- "\t[-n max number of linked list buffers to keep (default: 500)]\n"
- "\t[-d device index (default: 0)]\n"
- "\t[-P ppm_error (default: 0)]\n");
+ printf("rtl_tcp, an I/Q spectrum server for RTL2832 based DVB-T receivers\n\n");
+ printf("Usage:\t[-a listen address]\n");
+ printf("\t[-p listen port (default: %s)]\n", DEFAULT_PORT_STR);
+ printf("\t[-f frequency to tune to [Hz]]\n");
+ printf("\t[-g gain (default: 0 for auto)]\n");
+ printf("\t[-s samplerate in Hz (default: %d Hz)]\n", DEFAULT_SAMPLE_RATE_HZ);
+ printf("\t[-b number of buffers (default: 15, set by library)]\n");
+ printf("\t[-n max number of linked list buffers to keep (default: %d)]\n", DEFAULT_MAX_NUM_BUFFERS);
+ printf("\t[-d device index (default: 0)]\n");
+ printf("\t[-P ppm_error (default: 0)]\n");
+ printf("\t[-T enable bias-T on GPIO PIN 0 (works for rtl-sdr.com v3 dongles)]\n");
exit(1);
}
@@ -355,6 +364,10 @@ static void *command_worker(void *arg)
printf("set tuner gain by index %d\n", ntohl(cmd.param));
set_gain_by_index(dev, ntohl(cmd.param));
break;
+ case 0x0e:
+ printf("set bias tee %d\n", ntohl(cmd.param));
+ rtlsdr_set_bias_tee(dev, (int)ntohl(cmd.param));
+ break;
default:
break;
}
@@ -365,10 +378,18 @@ static void *command_worker(void *arg)
int main(int argc, char **argv)
{
int r, opt, i;
- char* addr = "127.0.0.1";
- int port = 1234;
- uint32_t frequency = 100000000, samp_rate = 2048000;
- struct sockaddr_in local, remote;
+ char *addr = "127.0.0.1";
+ const char *port = DEFAULT_PORT_STR;
+ uint32_t frequency = 100000000, samp_rate = DEFAULT_SAMPLE_RATE_HZ;
+ struct sockaddr_storage local, remote;
+ struct addrinfo *ai;
+ struct addrinfo *aiHead;
+ struct addrinfo hints;
+ char hostinfo[NI_MAXHOST];
+ char portinfo[NI_MAXSERV];
+ char remhostinfo[NI_MAXHOST];
+ char remportinfo[NI_MAXSERV];
+ int aiErr;
uint32_t buf_num = 0;
int dev_index = 0;
int dev_given = 0;
@@ -379,7 +400,7 @@ int main(int argc, char **argv)
void *status;
struct timeval tv = {1,0};
struct linger ling = {1,0};
- SOCKET listensocket;
+ SOCKET listensocket = 0;
socklen_t rlen;
fd_set readfds;
u_long blockmode = 1;
@@ -391,7 +412,7 @@ int main(int argc, char **argv)
struct sigaction sigact, sigign;
#endif
- while ((opt = getopt(argc, argv, "a:p:f:g:s:b:n:d:P:")) != -1) {
+ while ((opt = getopt(argc, argv, "a:p:f:g:s:b:n:d:P:T")) != -1) {
switch (opt) {
case 'd':
dev_index = verbose_device_search(optarg);
@@ -407,10 +428,10 @@ int main(int argc, char **argv)
samp_rate = (uint32_t)atofs(optarg);
break;
case 'a':
- addr = optarg;
+ addr = strdup(optarg);
break;
case 'p':
- port = atoi(optarg);
+ port = strdup(optarg);
break;
case 'b':
buf_num = atoi(optarg);
@@ -421,6 +442,9 @@ int main(int argc, char **argv)
case 'P':
ppm_error = atoi(optarg);
break;
+ case 'T':
+ enable_biastee = 1;
+ break;
default:
usage();
break;
@@ -491,6 +515,10 @@ int main(int argc, char **argv)
fprintf(stderr, "Tuner gain set to %f dB.\n", gain/10.0);
}
+ rtlsdr_set_bias_tee(dev, enable_biastee);
+ if (enable_biastee)
+ fprintf(stderr, "activated bias-T on GPIO PIN 0\n");
+
/* Reset endpoint before we start reading from it (mandatory) */
r = rtlsdr_reset_buffer(dev);
if (r < 0)
@@ -502,16 +530,42 @@ int main(int argc, char **argv)
pthread_cond_init(&cond, NULL);
pthread_cond_init(&exit_cond, NULL);
- memset(&local,0,sizeof(local));
- local.sin_family = AF_INET;
- local.sin_port = htons(port);
- local.sin_addr.s_addr = inet_addr(addr);
+ hints.ai_flags = AI_PASSIVE; /* Server mode. */
+ hints.ai_family = PF_UNSPEC; /* IPv4 or IPv6. */
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_protocol = IPPROTO_TCP;
+
+ if ((aiErr = getaddrinfo(addr,
+ port,
+ &hints,
+ &aiHead )) != 0)
+ {
+ fprintf(stderr, "local address %s ERROR - %s.\n",
+ addr, gai_strerror(aiErr));
+ return(-1);
+ }
+ memcpy(&local, aiHead->ai_addr, aiHead->ai_addrlen);
+
+ for (ai = aiHead; ai != NULL; ai = ai->ai_next) {
+ aiErr = getnameinfo((struct sockaddr *)ai->ai_addr, ai->ai_addrlen,
+ hostinfo, NI_MAXHOST,
+ portinfo, NI_MAXSERV, NI_NUMERICSERV | NI_NUMERICHOST);
+ if (aiErr)
+ fprintf( stderr, "getnameinfo ERROR - %s.\n",hostinfo);
+
+ listensocket = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
+ if (listensocket < 0)
+ continue;
+
+ r = 1;
+ setsockopt(listensocket, SOL_SOCKET, SO_REUSEADDR, (char *)&r, sizeof(int));
+ setsockopt(listensocket, SOL_SOCKET, SO_LINGER, (char *)&ling, sizeof(ling));
- listensocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
- r = 1;
- setsockopt(listensocket, SOL_SOCKET, SO_REUSEADDR, (char *)&r, sizeof(int));
- setsockopt(listensocket, SOL_SOCKET, SO_LINGER, (char *)&ling, sizeof(ling));
- bind(listensocket,(struct sockaddr *)&local,sizeof(local));
+ if (bind(listensocket, (struct sockaddr *)&local, sizeof(local)))
+ fprintf(stderr, "rtl_tcp bind error: %s", strerror(errno));
+ else
+ break;
+ }
#ifdef _WIN32
ioctlsocket(listensocket, FIONBIO, &blockmode);
@@ -522,11 +576,11 @@ int main(int argc, char **argv)
while(1) {
printf("listening...\n");
- printf("Use the device argument 'rtl_tcp=%s:%d' in OsmoSDR "
+ printf("Use the device argument 'rtl_tcp=%s:%s' in OsmoSDR "
"(gr-osmosdr) source\n"
"to receive samples in GRC and control "
"rtl_tcp parameters (frequency, gain, ...).\n",
- addr, port);
+ hostinfo, portinfo);
listen(listensocket,1);
while(1) {
@@ -546,7 +600,10 @@ int main(int argc, char **argv)
setsockopt(s, SOL_SOCKET, SO_LINGER, (char *)&ling, sizeof(ling));
- printf("client accepted!\n");
+ getnameinfo((struct sockaddr *)&remote, rlen,
+ remhostinfo, NI_MAXHOST,
+ remportinfo, NI_MAXSERV, NI_NUMERICSERV);
+ printf("client accepted! %s %s\n", remhostinfo, remportinfo);
memset(&dongle_info, 0, sizeof(dongle_info));
memcpy(&dongle_info.magic, "RTL0", 4);
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-17 04:00:14 +0000