diff options
Diffstat (limited to 'src/fl2k_tcp.c')
-rw-r--r-- | src/fl2k_tcp.c | 256 |
1 files changed, 0 insertions, 256 deletions
diff --git a/src/fl2k_tcp.c b/src/fl2k_tcp.c deleted file mode 100644 index 871ac26..0000000 --- a/src/fl2k_tcp.c +++ /dev/null @@ -1,256 +0,0 @@ -/* - * osmo-fl2k, turns FL2000-based USB 3.0 to VGA adapters into - * low cost DACs - * - * Copyright (C) 2016-2018 by Steve Markgraf <steve@steve-m.de> - * - * SPDX-License-Identifier: GPL-2.0+ - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <errno.h> -#include <signal.h> -#include <string.h> -#include <stdio.h> -#include <stdlib.h> - -#ifndef _WIN32 -#include <unistd.h> -#include <arpa/inet.h> -#include <sys/socket.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/time.h> -#include <netinet/in.h> -#include <netinet/tcp.h> /* for TCP_NODELAY */ -#include <fcntl.h> -#define sleep_ms(ms) usleep(ms*1000) -#else -#include <windows.h> -#include <winsock2.h> -#include "getopt/getopt.h" -#define sleep_ms(ms) Sleep(ms) -#endif - -#include "osmo-fl2k.h" - -#ifdef _WIN32 -#pragma comment(lib, "ws2_32.lib") - -typedef int socklen_t; - -#else -#define closesocket close -#define SOCKADDR struct sockaddr -#define SOCKET int -#define SOCKET_ERROR -1 -#endif - -static SOCKET s; -static fl2k_dev_t *dev = NULL; -static volatile int do_exit = 0; -static volatile int connected = 0; -static char *txbuf = NULL; -static fd_set readfds; -static SOCKET sock; - -void usage(void) -{ - fprintf(stderr, - "fl2k_tcp, a spectrum client for FL2K VGA dongles\n\n" - "Usage:\t[-a server address]\n" - "\t[-d device index (default: 0)]\n" - "\t[-p port (default: 1234)]\n" - "\t[-s samplerate in Hz (default: 100 MS/s)]\n" - "\t[-b number of buffers (default: 4)]\n" - ); - exit(1); -} - -#ifdef _WIN32 -BOOL WINAPI -sighandler(int signum) -{ - if (CTRL_C_EVENT == signum) { - fprintf(stderr, "Signal caught, exiting!\n"); - fl2k_stop_tx(dev); - do_exit = 1; - return TRUE; - } - return FALSE; -} -#else -static void sighandler(int signum) -{ - fprintf(stderr, "Signal caught, exiting!\n"); - do_exit = 1; - fl2k_stop_tx(dev); -} -#endif - -void fl2k_callback(fl2k_data_info_t *data_info) -{ - int left = FL2K_BUF_LEN; - int received; - int r; - struct timeval tv = { 1, 0 }; - - if (data_info->device_error) { - fprintf(stderr, "Device error, exiting.\n"); - do_exit = 1; - return; - } - - if (!connected) - return; - - data_info->sampletype_signed = 1; - data_info->r_buf = txbuf; - - while (!do_exit && (left > 0)) { - FD_ZERO(&readfds); - FD_SET(sock, &readfds); - tv.tv_sec = 1; - tv.tv_usec = 0; - r = select(sock + 1, &readfds, NULL, NULL, &tv); - - if (r) { - received = recv(sock, txbuf + (FL2K_BUF_LEN - left), left, 0); - if (!received) { - fprintf(stderr, "Connection was closed!\n"); - fl2k_stop_tx(dev); - do_exit = 1; - } - - left -= received; - } - } -} - -int main(int argc, char **argv) -{ - int r, opt, i; - char *addr = "127.0.0.1"; - int port = 1234; - uint32_t samp_rate = 100000000; - struct sockaddr_in local, remote; - uint32_t buf_num = 0; - int dev_index = 0; - int dev_given = 0; - int flag = 1; - -#ifdef _WIN32 - WSADATA wsd; - i = WSAStartup(MAKEWORD(2,2), &wsd); -#else - struct sigaction sigact, sigign; -#endif - - while ((opt = getopt(argc, argv, "d:s:a:p:b:")) != -1) { - switch (opt) { - case 'd': - dev_index = (uint32_t)atoi(optarg); - dev_given = 1; - break; - case 's': - samp_rate = (uint32_t)atof(optarg); - break; - case 'a': - addr = optarg; - break; - case 'p': - port = atoi(optarg); - break; - case 'b': - buf_num = atoi(optarg); - break; - default: - usage(); - break; - } - } - - if (argc < optind) - usage(); - - if (dev_index < 0) { - exit(1); - } - - txbuf = malloc(FL2K_BUF_LEN); - - if (!txbuf) { - fprintf(stderr, "malloc error!\n"); - exit(1); - } - - fl2k_open(&dev, (uint32_t)dev_index); - if (NULL == dev) { - fprintf(stderr, "Failed to open fl2k device #%d.\n", dev_index); - exit(1); - } - - r = fl2k_start_tx(dev, fl2k_callback, NULL, buf_num); - - /* Set the sample rate */ - r = fl2k_set_sample_rate(dev, samp_rate); - if (r < 0) - fprintf(stderr, "WARNING: Failed to set sample rate.\n"); - -#ifndef _WIN32 - sigact.sa_handler = sighandler; - sigemptyset(&sigact.sa_mask); - sigact.sa_flags = 0; - sigign.sa_handler = SIG_IGN; - sigaction(SIGINT, &sigact, NULL); - sigaction(SIGTERM, &sigact, NULL); - sigaction(SIGQUIT, &sigact, NULL); - sigaction(SIGPIPE, &sigact, NULL); -#else - SetConsoleCtrlHandler( (PHANDLER_ROUTINE) sighandler, TRUE ); -#endif - - sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); - - memset(&remote, 0, sizeof(remote)); - - remote.sin_family = AF_INET; - remote.sin_port = htons(port); - remote.sin_addr.s_addr = inet_addr(addr); - - fprintf(stderr, "Connecting to %s:%d...\n", addr, port); - while (connect(sock, (struct sockaddr *)&remote, sizeof(remote)) != 0) { - sleep_ms(500); - if (do_exit) - goto out; - } - - setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (char *)&flag,sizeof(flag)); - fprintf(stderr, "Connected\n"); - connected = 1; - - while (!do_exit) - sleep_ms(500); - -out: - fl2k_close(dev); - free(txbuf); - closesocket(s); -#ifdef _WIN32 - WSACleanup(); -#endif - - return 0; -} |