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rtl_tcp: add support for tuner caps discovery 

Signed-off-by: Hoernchen <la@tfc-server.de>
This commit is contained in:
Dimitri Stolnikov 2012-12-29 14:21:07 +01:00 committed by Hoernchen
parent d0534878f3
commit e82a07e67a
1 changed files with 48 additions and 4 deletions
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52
src/rtl_tcp.c
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@ -70,6 +70,12 @@ struct llist {
struct llist *next;
};
typedef struct { /* structure size must be multiple of 2 bytes */
char magic[4];
uint32_t tuner_type;
uint32_t tuner_gain_count;
} dongle_info_t;
static rtlsdr_dev_t *dev = NULL;
int global_numq = 0;
@ -236,6 +242,24 @@ static void *tcp_worker(void *arg)
}
}
static int set_gain_by_index(rtlsdr_dev_t *_dev, unsigned int index)
{
int res = 0;
int* gains;
int count = rtlsdr_get_tuner_gains(_dev, NULL);
if (count > 0 && (unsigned int)count > index) {
gains = malloc(sizeof(int) * count);
count = rtlsdr_get_tuner_gains(_dev, gains);
res = rtlsdr_set_tuner_gain(_dev, gains[index]);
free(gains);
}
return res;
}
#ifdef _WIN32
#define __attribute__(x)
#pragma pack(push, 1)
@ -335,6 +359,10 @@ static void *command_worker(void *arg)
printf("set tuner xtal %d\n", ntohl(cmd.param));
rtlsdr_set_xtal_freq(dev, 0, ntohl(cmd.param));
break;
case 0x0d:
printf("set tuner gain by index %d\n", ntohl(cmd.param));
set_gain_by_index(dev, ntohl(cmd.param));
break;
default:
break;
}
@ -361,6 +389,7 @@ int main(int argc, char **argv)
socklen_t rlen;
fd_set readfds;
u_long blockmode = 1;
dongle_info_t dongle_info;
#ifdef _WIN32
WSADATA wsd;
i = WSAStartup(MAKEWORD(2,2), &wsd);
@ -515,22 +544,37 @@ int main(int argc, char **argv)
printf("client accepted!\n");
memset(&dongle_info, 0, sizeof(dongle_info));
memcpy(&dongle_info.magic, "RTL0", 4);
r = rtlsdr_get_tuner_type(dev);
if (r >= 0)
dongle_info.tuner_type = htonl(r);
r = rtlsdr_get_tuner_gains(dev, NULL);
if (r >= 0)
dongle_info.tuner_gain_count = htonl(r);
r = send(s, (const char *)&dongle_info, sizeof(dongle_info), 0);
if (sizeof(dongle_info) != r)
printf("failed to send dongle information\n");
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
r = pthread_create(&tcp_worker_thread, &attr, tcp_worker, NULL);
r = pthread_create(&command_thread, &attr, command_worker, NULL);
pthread_attr_destroy(&attr);
r = rtlsdr_read_async(dev, rtlsdr_callback, (void *)0,
buf_num, 0);
r = rtlsdr_read_async(dev, rtlsdr_callback, NULL, buf_num, 0);
if(!dead[0])
pthread_join(tcp_worker_thread, &status);
dead[0]=0;
dead[0]=0;
if(!dead[1])
pthread_join(command_thread, &status);
dead[1]=0;
dead[1]=0;
closesocket(s);
printf("all threads dead..\n");