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1340 lines
41 KiB
1340 lines
41 KiB
/*
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* Remote Laboratory Instrumentation Server
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* (c) 2009 Timothy Pearson
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* Raptor Engineering
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* http://www.raptorengineeringinc.com
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*/
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#include <stdio.h> /* perror() */
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#include <stdlib.h> /* atoi() */
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <unistd.h> /* read() */
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <fcntl.h>
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#include <glib.h>
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#include <gtk/gtk.h>
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#include <termios.h>
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#include <unistd.h>
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#include <sys/signal.h>
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#include <sys/types.h>
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#include <gpib/ib.h>
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#include <time.h>
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#include "parameters.h"
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#include "scope_functions.h"
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#include "signal_functions.h"
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#include "commanalyzer_functions.h"
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// Server variables
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char *serverAddress;
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unsigned short serverPort = 4000;
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char *serialportDescription;
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char *gpibServerString;
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// Scope parameters
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char *scopeBoard;
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char *scopeDevice;
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char *scopeType;
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char scopeFound = 0;
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int scope_board_device;
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// Function generator parameters
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char *funcgenBoard;
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char *funcgenDevice;
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char *funcgenType;
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char funcgenFound = 0;
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int funcgen_board_device;
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// Communications analyzer parameters
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char *commanalyzerBoard;
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char *commanalyzerDevice;
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char *commanalyzerType;
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char commanalyzerFound = 0;
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int commanalyzer_board_device;
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// Serial port parameters
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char *serialDevice;
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long serialBaud = 0;
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// Serial stuff
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int tty;
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struct termios oldtio, newtio; //place for old and new port settings for serial port
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struct termios oldkey, newkey; //place tor old and new port settings for keyboard teletype
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struct sigaction saio; //definition of signal action
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char buf[256]; //buffer for where data is put
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int fd_tty;
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int wait_flag=TRUE; //TRUE while no signal received
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int server_fd_with_serial = -1;
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// Network variables
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int clientSocket;
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int status = 0;
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int last_command_acked = 0;
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struct hostent *hostPtr = NULL;
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struct sockaddr_in serverName = { 0 };
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int authentication_timer_check(void);
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long optval;
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int return_status;
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// Timing variables
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unsigned int authentication_timer;
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unsigned char enable_authentication_timer;
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unsigned char buffer[100000];
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// Generic server stuff
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#define QLEN 100000
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u_short portbase = 0;
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struct timeval server_multiplexer;
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// Query server stuff
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char *queryservice_port = "4003";
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struct sockaddr_in fsin_query;
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int msock_query;
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fd_set rfds_query;
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fd_set afds_query;
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int alen_query;
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int fd_query;
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int nfds_query;
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// Main server stuff
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char *mainservice_port = "4002";
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struct sockaddr_in fsin_mainserver;
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int msock_mainserver;
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fd_set rfds_mainserver;
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fd_set afds_mainserver;
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int alen_mainserver;
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int fd_mainserver;
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int nfds_mainserver;
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int ssock_mainserver;
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//char main_server_in_use;
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//char main_server_fd;
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char main_server_state[65535];
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char auth_char_pos;
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char auth_string[40];
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int k;
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int m;
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// Configuration stuff
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static const char filename[] = "remotefpga_gpib.conf";
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char linedata [256];
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// Shut up GCC
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void quiet_write(int fd, const void *buf, size_t count) {
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int retcode = write(fd, buf, count);
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if (retcode < 0) {
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printf("[WARN] Network error\n\r");
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}
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}
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void getMyIP (void)
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{
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char Buf [256];
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struct hostent* Host;
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gethostname (Buf, 256);
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Host=(struct hostent *) gethostbyname (Buf);
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serverAddress=strdup(inet_ntoa(*((struct in_addr *)Host->h_addr)));
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//serverAddress=strdup(Buf);
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}
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int msleep(unsigned long milisec) {
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struct timespec req={0};
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time_t sec=(int)(milisec/1000);
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milisec=milisec-(sec*1000);
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req.tv_sec=sec;
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req.tv_nsec=milisec*1000000L;
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while(nanosleep(&req,&req)==-1)
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continue;
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return 1;
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}
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int musleep(unsigned long milisec) {
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struct timespec req={0};
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time_t sec=(int)(milisec/1000);
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milisec=milisec-(sec*1000);
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req.tv_sec=sec;
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req.tv_nsec=milisec*1000L;
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while(nanosleep(&req,&req)==-1)
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continue;
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return 1;
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}
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void signal_handler_IO (int status) {
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wait_flag = FALSE;
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}
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int setupSerial(void) {
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struct termios oldtio,newtio;
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fd_tty = open(serialDevice, O_RDWR | O_NOCTTY | O_NONBLOCK | O_APPEND);
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if (fd_tty < 0) {
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printf("[FAIL] Unable to open serial device %s\n\r", serialDevice);
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return 1;
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}
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tcgetattr(fd_tty,&oldtio); // Save current port settings
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bzero(&newtio, sizeof(newtio));
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newtio.c_cflag = serialBaud | CS8 | CLOCAL | CREAD;
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newtio.c_iflag = IGNPAR;
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newtio.c_oflag = 0;
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// Set input mode (non-canonical, no echo,...)
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newtio.c_lflag = 0;
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newtio.c_cc[VTIME] = 0; // Inter-character timer unused
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newtio.c_cc[VMIN] = 0; // Blocking read unused
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tcflush(fd_tty, TCIFLUSH);
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tcsetattr(fd_tty,TCSANOW,&newtio);
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return 0;
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}
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int getConfig(char *parameter, char *line) {
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int i;
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if (strstr(line, parameter) != NULL) {
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for (i=0; i<(strlen(line)-strlen(parameter));i++) {
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linedata[i] = line[i+strlen(parameter)];
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}
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linedata[i-1]=0;
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return 0;
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}
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else {
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return 1;
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}
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}
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void concatenateStrings(char * str1, char * str2) {
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char *str3;
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str3 = (char *)calloc(strlen(str1) + strlen(str2) + 1, sizeof(char));
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strcpy(str3, str1);
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strcat(str3, str2);
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str1 = (char *)calloc(strlen(str3) + 1, sizeof(char));
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strcpy(str1, str3);
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free(str1);
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free(str3);
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}
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/* returns a device descriptor after prompting user for primary address */
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int open_gpib_device(int minor, int pad)
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{
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int ud;
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const int sad = 0;
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const int send_eoi = 1;
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const int eos_mode = 0;
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const int timeout = T1s;
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printf("[INFO] Trying to open GPIB device %i on board /dev/gpib%i...\n\r", pad, minor);
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ud = ibdev(minor, pad, sad, timeout, send_eoi, eos_mode);
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if(ud < 0)
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{
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printf("[WARN] GPIB interface error\n\r");
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return -1;
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}
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return ud;
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}
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char * scopeLongDescription (char * scopeType) {
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if (strcmp("HP54600OS", scopeType) == 0) {
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return "Hewlett Packard 54600 series";
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}
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else if (strcmp("TDS744AOS", scopeType) == 0) {
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return "Tektronix 744A series";
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}
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else {
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return "UNKNOWN";
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}
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}
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char * commanalyzerLongDescription (char * scopeType) {
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if (strcmp("HP8924C", commanalyzerType) == 0) {
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return "Hewlett Packard 8924 series";
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}
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else {
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return "UNKNOWN";
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}
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}
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char * funcgenLongDescription (char * funcgenType) {
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if (strcmp("AG33250A", funcgenType) == 0) {
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return "Agilent AG33250A";
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}
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else {
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return "UNKNOWN";
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}
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}
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int readConfig(void) {
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int i;
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FILE *file = fopen ( filename, "r" );
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if ( file != NULL ) {
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char line [256]; // or other suitable maximum line size
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// read a line
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while ( fgets ( line, sizeof line, file ) != NULL ) {
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// Parse the line and update global variables (current line in variable "line")
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if (getConfig("SERVER_DESCRIPTION:", line) == 0) {
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gpibServerString = strdup(linedata);
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printf("[INFO] Server Description: %s\n\r", gpibServerString);
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}
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if (getConfig("SERIAL_PORT:", line) == 0) {
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serialDevice = strdup(linedata);
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printf("[INFO] Serial Port: %s\n\r", serialDevice);
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}
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if (getConfig("BAUD_RATE:", line) == 0) {
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if (strcmp(linedata, "9600") == 0) serialBaud = B9600;
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if (strcmp(linedata, "115200") == 0) serialBaud = B115200;
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//serialBaud = B9600;
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printf("[INFO] Baud Rate: %s [%ld]\n\r", linedata, serialBaud);
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serialportDescription = strdup(linedata);
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}
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if (getConfig("SCOPE_BOARD:", line) == 0) {
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scopeBoard = strdup(linedata);
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scopeFound++;
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}
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if (getConfig("SCOPE_DEVICE:", line) == 0) {
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scopeDevice = strdup(linedata);
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scopeFound++;
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}
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if (getConfig("SCOPE_TYPE:", line) == 0) {
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scopeType = strdup(linedata);
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scopeFound++;
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}
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if (getConfig("FUNCTION_GENERATOR_BOARD:", line) == 0) {
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funcgenBoard = strdup(linedata);
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funcgenFound++;
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}
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if (getConfig("FUNCTION_GENERATOR_DEVICE:", line) == 0) {
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funcgenDevice = strdup(linedata);
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funcgenFound++;
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}
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if (getConfig("FUNCTION_GENERATOR_TYPE:", line) == 0) {
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funcgenType = strdup(linedata);
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funcgenFound++;
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}
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if (getConfig("COMMANALYZER_BOARD:", line) == 0) {
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commanalyzerBoard = strdup(linedata);
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commanalyzerFound++;
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}
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if (getConfig("COMMANALYZER_DEVICE:", line) == 0) {
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commanalyzerDevice = strdup(linedata);
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commanalyzerFound++;
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}
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if (getConfig("COMMANALYZER_TYPE:", line) == 0) {
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commanalyzerType = strdup(linedata);
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commanalyzerFound++;
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}
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}
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fclose ( file );
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if (scopeFound == 3) {
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printf("[INFO] Oscilloscope conjectured to be on GPIB address %s:%s\n\r", scopeBoard, scopeDevice);
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scope_board_device = open_gpib_device(atoi(scopeBoard), atoi(scopeDevice));
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if (scope_board_device < 0) {
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//return 1;
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}
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else {
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time_t rawtime;
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struct tm * timeinfo;
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char datebuffer [80];
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char timebuffer [80];
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time ( &rawtime );
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timeinfo = localtime ( &rawtime );
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strftime(timebuffer,80,"TIME \"%H:%M:%S\"",timeinfo);
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strftime(datebuffer,80,"DATE \"%Y-%m-%d\"",timeinfo);
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printf("[INFO] Configuring %s oscilloscope\n\r", scopeLongDescription(scopeType));
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printf("[INFO] %s\n\r", datebuffer);
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printf("[INFO] %s\n\r", timebuffer);
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if (gpib_write(scope_board_device, timebuffer) == 0) {
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gpib_write(scope_board_device, datebuffer);
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printf("[INFO] Communication verified\n\r");
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}
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else {
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printf("[WARN] Communication failed!\n\r");
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}
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}
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}
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if (funcgenFound == 3) {
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printf("[INFO] Function generator conjectured to be on GPIB address %s:%s\n\r", funcgenBoard, funcgenDevice);
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funcgen_board_device = open_gpib_device(atoi(funcgenBoard), atoi(funcgenDevice));
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if (funcgen_board_device < 0) {
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//return 1;
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}
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else {
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printf("[INFO] Configuring %s function generator\n\r", funcgenLongDescription(funcgenType));
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if (gpib_write(funcgen_board_device, "RESET") == 0) {
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printf("[INFO] Communication verified\n\r");
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}
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else {
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printf("[WARN] Communication failed!\n\r");
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}
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}
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}
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if (commanalyzerFound == 3) {
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printf("[INFO] Communications analyzer conjectured to be on GPIB address %s:%s\n\r", commanalyzerBoard, commanalyzerDevice);
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commanalyzer_board_device = open_gpib_device(atoi(commanalyzerBoard), atoi(commanalyzerDevice));
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if (commanalyzer_board_device < 0) {
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//return 1;
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}
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else {
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time_t rawtime;
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struct tm * timeinfo;
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time ( &rawtime );
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timeinfo = localtime ( &rawtime );
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printf("[INFO] Configuring %s communications analyzer\n\r", commanalyzerLongDescription(commanalyzerType));
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if (commanalyzer_set_time(timeinfo, commanalyzerType, commanalyzer_board_device) == 0) {
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commanalyzer_set_date(timeinfo, commanalyzerType, commanalyzer_board_device);
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printf("[INFO] Communication verified\n\r");
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}
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else {
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printf("[WARN] Communication failed!\n\r");
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}
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}
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}
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}
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else
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{
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printf("[WARN] Unable to open configuration file %s\n\r", filename);
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return 1;
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}
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|
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return 0;
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}
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|
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int authentication_timer_check(void) {
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authentication_timer++;
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|
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return enable_authentication_timer;
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}
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|
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int passivesock(const char *service, const char *transport, int qlen) {
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struct servent *pse;
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struct protoent *ppe;
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struct sockaddr_in sin;
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int s;
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int type;
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memset(&sin, 0, sizeof(sin));
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sin.sin_family = AF_INET;
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sin.sin_addr.s_addr = INADDR_ANY;
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|
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// Map service name to port number
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if(pse = getservbyname(service, transport)) {
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sin.sin_port = htons(ntohs((u_short)pse->s_port) + portbase);
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}
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else if((sin.sin_port = htons((u_short)atoi(service))) == 0) {
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printf("[FAIL] Query Server Service Entry %s\n\r", service);
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return -1;
|
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}
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|
|
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// Map protocol name to protocol number
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if((ppe = getprotobyname(transport)) == 0) {
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printf("[FAIL] Query Server Protocol Entry %s\n\r", transport);
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return -1;
|
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}
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|
|
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// Use protocol to choose a socket type
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if(strcmp(transport, "udp") == 0) {
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type = SOCK_DGRAM;
|
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}
|
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else {
|
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type = SOCK_STREAM;
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}
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|
|
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// Allocate a socket
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s = socket(PF_INET, type, ppe->p_proto);
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|
|
|
if(s < 0) {
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printf("[FAIL] Socket Error\n\r");
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return -1;
|
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}
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|
|
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// Bind the socket
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if(bind(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
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printf("[FAIL] Cannot bind to port %s\n\r", service);
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return -1;
|
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}
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|
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if(type == SOCK_STREAM && listen(s, qlen) < 0) {
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printf("[FAIL] Cannot bind to port %s\n\r", service);
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return -1;
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}
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return s;
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}
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|
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int passiveTCP(const char *service, int qlen) {
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return passivesock(service, "tcp", qlen);
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}
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|
|
|
int queryserver(int fd) {
|
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return 0;
|
|
}
|
|
|
|
void buffer_lookfor_two_termdegree (unsigned char * array, unsigned char * array2, int termination_count) {
|
|
int i;
|
|
int k;
|
|
char degree_found;
|
|
|
|
degree_found = 0;
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|
k=0;
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for (i=0;i<termination_count;i++) {
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if (array[i+1] == 176) {
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|
if (degree_found == 0) {
|
|
degree_found = 1;
|
|
}
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else {
|
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degree_found = 3;
|
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}
|
|
}
|
|
if (degree_found == 2) {
|
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array2[k] = array[i+1];
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k++;
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}
|
|
if (degree_found == 1) {
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array[i] = 0;
|
|
degree_found = 2;
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k=0;
|
|
}
|
|
else {
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array[i] = array[i+1];
|
|
}
|
|
}
|
|
array[i] = 0;
|
|
array2[k] = 0;
|
|
}
|
|
|
|
void buffer_lookfor_termdegree (unsigned char * array, int termination_count) {
|
|
int i;
|
|
char degree_found;
|
|
|
|
degree_found = 0;
|
|
for (i=0;i<termination_count;i++) {
|
|
if (array[i+1] == 176) {
|
|
degree_found = 1;
|
|
}
|
|
if (degree_found == 1) {
|
|
array[i] = 0;
|
|
}
|
|
else {
|
|
array[i] = array[i+1];
|
|
}
|
|
}
|
|
array[i] = 0;
|
|
}
|
|
|
|
int mainserver(int fd) {
|
|
char readbuf[100000];
|
|
char readbuf2[100000];
|
|
char writebuf[100000];
|
|
int cc;
|
|
int z;
|
|
long bytestosend;
|
|
char errorbuf[1000];
|
|
|
|
cc = 1;
|
|
switch (main_server_state[fd]) {
|
|
case 1: // Check the command code
|
|
cc = read(fd, readbuf, 1);
|
|
if (cc > 0) {
|
|
// Got one!
|
|
#ifdef ENABLE_EXTRA_DEBUGGING
|
|
printf("[DEBG] Got command %d on server fd %d\n\r", readbuf[0], fd);
|
|
#endif
|
|
|
|
// What is it?
|
|
if (readbuf[0] == 31) {
|
|
// Serial channel open request
|
|
// Open the serial port
|
|
printf("[INFO] Opening serial port for fd %d...\n\r", fd);
|
|
if (serialBaud != 0) {
|
|
if (setupSerial() != 0) {
|
|
printf("[FAIL] Cannot open serial port\n\r");
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
main_server_state[fd] = 4;
|
|
server_fd_with_serial = fd;
|
|
printf("[INFO] Entering state 4 on server fd %d\n\r", fd);
|
|
}
|
|
}
|
|
else {
|
|
printf("[FAIL] Serial port not set up!\n\r");
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 21) {
|
|
// Scope request
|
|
if (scope_board_device < 0) {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
else {
|
|
if (strcmp("HP54600OS", scopeType) == 0) {
|
|
quiet_write(fd, "546\r", strlen("546\r"));
|
|
main_server_state[fd] = 5;
|
|
}
|
|
else if (strcmp("TDS744AOS", scopeType) == 0) {
|
|
quiet_write(fd, "744\r", strlen("744\r"));
|
|
main_server_state[fd] = 5;
|
|
}
|
|
else {
|
|
// Scope not recognized, apparently
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
printf("[INFO] Entering state %d on server fd %d\n\r", main_server_state[fd], fd);
|
|
}
|
|
}
|
|
else if (readbuf[0] == 40) {
|
|
// Function generator request
|
|
if (funcgen_board_device < 0) {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
else {
|
|
if (strcmp("AG33250A", funcgenType) == 0) {
|
|
//if (signal_reset(funcgenType, funcgen_board_device, errorbuf) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
main_server_state[fd] = 6;
|
|
//}
|
|
// Function generator seems to have failed
|
|
//write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
else {
|
|
// Function generator not recognized, apparently
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
printf("[INFO] Entering state %d on server fd %d\n\r", main_server_state[fd], fd);
|
|
}
|
|
}
|
|
else if (readbuf[0] == 41) {
|
|
// Communications analyzer request
|
|
if (commanalyzer_board_device < 0) {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
else {
|
|
if (strcmp("HP8924C", commanalyzerType) == 0) {
|
|
quiet_write(fd, "892\r", strlen("892\r"));
|
|
main_server_state[fd] = 7;
|
|
}
|
|
else {
|
|
// Communications analyzer not recognized, apparently
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
printf("[INFO] Entering state %d on server fd %d\n\r", main_server_state[fd], fd);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 4: // Process serial port transfers
|
|
cc = read(fd_tty, readbuf, 100000);
|
|
if (cc > 0) {
|
|
quiet_write(fd, readbuf, cc);
|
|
fsync(fd_tty);
|
|
#ifdef ENABLE_EXTRA_DEBUGGING
|
|
printf("[DEBG] Got %d bytes from the serial port\n\r", cc);
|
|
#endif
|
|
}
|
|
cc = read(fd, writebuf, 100000);
|
|
if (cc > 0) {
|
|
quiet_write(fd_tty, writebuf, cc);
|
|
fsync(fd);
|
|
#ifdef ENABLE_EXTRA_DEBUGGING
|
|
printf("[DEBG] Got %d bytes from the network interface\n\r", cc);
|
|
#endif
|
|
}
|
|
break;
|
|
|
|
case 5: // Process scope interface commands
|
|
cc = read(fd, readbuf, 25);
|
|
if (cc > 0) {
|
|
// Got one!
|
|
#ifdef ENABLE_EXTRA_DEBUGGING
|
|
printf("[DEBG] Got command %d on server fd %d\n\r", readbuf[0], fd);
|
|
#endif
|
|
if ((readbuf[0] == 20) || (readbuf[0] == 29)) { // Want scope screenshot!
|
|
quiet_write(fd, "ACK", strlen("ACK"));
|
|
fsync(fd);
|
|
if (scope_get_screenshot(scopeType, scope_board_device) == 0) {
|
|
sleep (5);
|
|
scope_board_device = open_gpib_device(atoi(scopeBoard), atoi(scopeDevice));
|
|
if (scope_get_screenshot_stage2(scopeType, scope_board_device) == 0) {
|
|
// Send the data, all of it!
|
|
quiet_write(fd, "ACK", strlen("ACK"));
|
|
|
|
bytestosend = scopeScreenSize(scopeType);
|
|
k=0;
|
|
while (bytestosend > 0) {
|
|
return_status = write(fd, scope_raw_screenshot_data+k, 1);
|
|
if (return_status > 0) {
|
|
bytestosend = bytestosend - return_status;
|
|
k++;
|
|
}
|
|
else {
|
|
bytestosend = 0;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK", strlen("NCK"));
|
|
}
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK", strlen("NCK"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 22) { // Want to change horizontal timebase
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (scope_set_timebase(atof(readbuf), scopeType, scope_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 23) { // Want to change volts per division
|
|
buffer_lookfor_two_termdegree(readbuf, readbuf2, 25);
|
|
if (scope_set_volts_div(atoi(readbuf), atof(readbuf2), scopeType, scope_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 24) { // Want to change run status
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (scope_set_acquisition(atoi(readbuf), scopeType, scope_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 25) { // Want to change channel enable
|
|
buffer_lookfor_two_termdegree(readbuf, readbuf2, 25);
|
|
if (scope_set_channel_state(atoi(readbuf), atoi(readbuf2), scopeType, scope_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 26) { // Want to change trigger channel
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (scope_set_trigger_channel(atoi(readbuf), scopeType, scope_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 27) { // Want to change trigger level
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (scope_set_trigger_level(atof(readbuf), scopeType, scope_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 28) { // Want to change channel vertical position
|
|
buffer_lookfor_two_termdegree(readbuf, readbuf2, 25);
|
|
if (scope_set_channel_position(atoi(readbuf), atof(readbuf2), scopeType, scope_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 6: // Process function generator interface commands
|
|
cc = read(fd, readbuf, 25);
|
|
if (cc > 0) {
|
|
// Got one!
|
|
#ifdef ENABLE_EXTRA_DEBUGGING
|
|
printf("[DEBG] Got command %d on server fd %d\n\r", readbuf[0], fd);
|
|
#endif
|
|
if (readbuf[0] == 40) { // Want to reset function generator
|
|
if (signal_reset(funcgenType, funcgen_board_device, errorbuf) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, errorbuf, strlen(errorbuf));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 41) { // Is function generator configured?
|
|
// If I'm in state 6 it had *better* be available!!!
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else if (readbuf[0] == 42) { // Want to change frequency
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (signal_set_frequency(atof(readbuf), funcgenType, funcgen_board_device, errorbuf) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, errorbuf, strlen(errorbuf));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 43) { // Want to change duty cycle
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (signal_set_duty_cycle(atof(readbuf), funcgenType, funcgen_board_device, errorbuf) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, errorbuf, strlen(errorbuf));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 44) { // Want to set square wave
|
|
if (signal_set_waveform("SQUARE", funcgenType, funcgen_board_device, errorbuf) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, errorbuf, strlen(errorbuf));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 45) { // Want to set sine wave
|
|
if (signal_set_waveform("SINUSOID", funcgenType, funcgen_board_device, errorbuf) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, errorbuf, strlen(errorbuf));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 46) { // Want to set triangle wave
|
|
if (signal_set_waveform("RAMP", funcgenType, funcgen_board_device, errorbuf) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, errorbuf, strlen(errorbuf));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 47) { // Want to set noise wave
|
|
if (signal_set_waveform("NOISE", funcgenType, funcgen_board_device, errorbuf) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, errorbuf, strlen(errorbuf));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 48) { // Want to change P-P voltage
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (signal_set_peak_peak_voltage(atof(readbuf), funcgenType, funcgen_board_device, errorbuf) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, errorbuf, strlen(errorbuf));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 49) { // Want to change offset voltage
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (signal_set_offset_voltage(atof(readbuf), funcgenType, funcgen_board_device, errorbuf) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, errorbuf, strlen(errorbuf));
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 7: // Process communications analyzer interface commands
|
|
cc = read(fd, readbuf, 25);
|
|
if (cc > 0) {
|
|
// Got one!
|
|
#ifdef ENABLE_EXTRA_DEBUGGING
|
|
printf("[DEBG] Got command %d on server fd %d\n\r", readbuf[0], fd);
|
|
#endif
|
|
if (readbuf[0] == 40) { // Want to set SA mode
|
|
if (commanalyzer_switch_to_spectrum_analyzer_mode(commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 41) { // Is communications analyzer configured?
|
|
// If I'm in state 7 it had *better* be available!!!
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else if ((readbuf[0] == 42)) { // Want SA trace
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
fsync(fd);
|
|
if (commanalyzer_get_spectrum_analyzer_trace(commanalyzerType, commanalyzer_board_device) == 0) {
|
|
bytestosend = commanalyzerTraceLength(commanalyzerType)*sizeof(double);
|
|
int16_t numbytes = bytestosend;
|
|
quiet_write(fd, &numbytes, 2);
|
|
quiet_write(fd, "\r", 1);
|
|
fsync(fd);
|
|
k=0;
|
|
while (bytestosend > 0) {
|
|
return_status = write(fd, ((uint8_t*)commanalyzer_raw_trace_data)+k, 1);
|
|
if (return_status > 0) {
|
|
bytestosend = bytestosend - return_status;
|
|
k++;
|
|
}
|
|
else {
|
|
bytestosend = 0;
|
|
}
|
|
}
|
|
fsync(fd);
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK", strlen("NCK"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 43) { // Want to lock screen
|
|
if (commanalyzer_lock_screen(commanalyzerType, commanalyzer_board_device) == 0) {
|
|
commanalyzer_set_display_brightness(0, commanalyzerType, commanalyzer_board_device); // Don't burn in the screen
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 44) { // Want to set generator to tracking mode
|
|
if (commanalyzer_spectrum_analyzer_set_generator_mode_tracking(commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 45) { // Want to set generator to fixed mode
|
|
if (commanalyzer_spectrum_analyzer_set_generator_mode_fixed(commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 46) { // Want to change center frequency
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (commanalyzer_set_spectrum_analyzer_center_frequency(atof(readbuf), commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 47) { // Want to change frequency span
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (commanalyzer_set_spectrum_analyzer_frequency_span(atof(readbuf), commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 48) { // Want to set RF input to dedicated connector
|
|
if (commanalyzer_spectrum_analyzer_set_rf_input_dedicated(commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 49) { // Want to set RF input to multiplexed connector
|
|
if (commanalyzer_spectrum_analyzer_set_rf_input_muxed(commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 50) { // Want to set generator output to dedicated connector
|
|
if (commanalyzer_spectrum_analyzer_set_generator_output_dedicated(commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 51) { // Want to set generator output to multiplexed connector
|
|
if (commanalyzer_spectrum_analyzer_set_generator_output_muxed(commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 52) { // Want to change input attenuation
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (commanalyzer_set_spectrum_analyzer_input_attenuation(atof(readbuf), commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 53) { // Want to change scale
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (commanalyzer_set_spectrum_analyzer_scale(atof(readbuf), commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 54) { // Want to set RF input attenuator mode to automatic
|
|
if (commanalyzer_set_spectrum_analyzer_input_attenuator_mode_auto(commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 55) { // Want to set RF input attenuator mode to fixed
|
|
if (commanalyzer_set_spectrum_analyzer_input_attenuator_mode_fixed(commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 56) { // Want to change generator output power
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (commanalyzer_set_spectrum_analyzer_generator_power(atof(readbuf), commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 57) { // Want to change generator output frequency
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (commanalyzer_set_spectrum_analyzer_generator_frequency(atof(readbuf), commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 58) { // Want to set generator sweep to ascending
|
|
if (commanalyzer_spectrum_analyzer_set_generator_sweep_ascending(commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 59) { // Want to set generator sweep to descending
|
|
if (commanalyzer_spectrum_analyzer_set_generator_sweep_descending(commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 60) { // Want to set trace averaging
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (commanalyzer_set_spectrum_analyzer_trace_averaging(atof(readbuf), commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 61) { // Want to set reference power level
|
|
buffer_lookfor_termdegree(readbuf, 25);
|
|
if (commanalyzer_set_spectrum_analyzer_reference_power_level(atof(readbuf), commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 62) { // Want the number of vertical divisions available
|
|
int16_t divisions = commanalyzer_get_spectrum_analyzer_number_of_vertical_divisions(commanalyzerType, commanalyzer_board_device);
|
|
if (divisions >= 0) {
|
|
quiet_write(fd, &divisions, 2);
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 63) { // Want the number of samples in a trace
|
|
int16_t divisions = commanalyzerTraceLength(commanalyzerType);
|
|
if (divisions >= 0) {
|
|
quiet_write(fd, &divisions, 2);
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, &divisions, 2);
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 64) { // Want the number of horizontal divisions available
|
|
int16_t divisions = commanalyzer_get_spectrum_analyzer_number_of_horizontal_divisions(commanalyzerType, commanalyzer_board_device);
|
|
if (divisions >= 0) {
|
|
quiet_write(fd, &divisions, 2);
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, &divisions, 2);
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 65) { // Want the reference power level
|
|
double rpower;
|
|
if (commanalyzer_get_spectrum_analyzer_reference_power_level(&rpower, commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, &rpower, sizeof(double));
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, &rpower, sizeof(double));
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 66) { // Want the vertical division scale
|
|
double scale;
|
|
if (commanalyzer_get_spectrum_analyzer_scale(&scale, commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, &scale, sizeof(double));
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, &scale, sizeof(double));
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 67) { // Want to get the center frequency
|
|
double freq;
|
|
if (commanalyzer_get_spectrum_analyzer_center_frequency(&freq, commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, &freq, sizeof(double));
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, &freq, sizeof(double));
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
else if (readbuf[0] == 68) { // Want to get the frequency span
|
|
double freq;
|
|
if (commanalyzer_get_spectrum_analyzer_span(&freq, commanalyzerType, commanalyzer_board_device) == 0) {
|
|
quiet_write(fd, &freq, sizeof(double));
|
|
quiet_write(fd, "ACK\r", strlen("ACK\r"));
|
|
}
|
|
else {
|
|
quiet_write(fd, &freq, sizeof(double));
|
|
quiet_write(fd, "NCK\r", strlen("NCK\r"));
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 2: // Open the serial port
|
|
printf("[INFO] Opening serial port...\n\r");
|
|
if (setupSerial() != 0) {
|
|
printf("[FAIL] Cannot open serial port\n\r");
|
|
cc = 0;
|
|
}
|
|
main_server_state[fd] = 1;
|
|
break;
|
|
case 127: sleep(1);
|
|
cc = 0;
|
|
break;
|
|
}
|
|
|
|
return cc;
|
|
}
|
|
|
|
int RunQueryServer() {
|
|
msock_query = passiveTCP(queryservice_port, QLEN);
|
|
if (msock_query == -1) {
|
|
return -1;
|
|
}
|
|
nfds_query = getdtablesize();
|
|
FD_ZERO(&afds_query);
|
|
FD_SET(msock_query, &afds_query);
|
|
}
|
|
|
|
int RunMainServer() {
|
|
//main_server_in_use = 0;
|
|
//main_server_fd = -1;
|
|
msock_mainserver = passiveTCP(mainservice_port, QLEN);
|
|
if (msock_mainserver == -1) {
|
|
return -1;
|
|
}
|
|
nfds_mainserver = getdtablesize();;
|
|
FD_ZERO(&afds_mainserver);
|
|
FD_SET(msock_mainserver, &afds_mainserver);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
char successful = 1;
|
|
|
|
server_multiplexer.tv_sec = 0;
|
|
server_multiplexer.tv_usec = 10;
|
|
|
|
// Register signal handler
|
|
signal(SIGPIPE, signal_handler_IO);
|
|
|
|
printf("RemoteFPGA GPIB Server v%s.%s%s\n\r", SERVER_MAJOR, SERVER_MINOR, SERVER_REVISION);
|
|
printf("(c) %s Timothy Pearson\n\r", COPYRIGHT_DATE);
|
|
printf("(c) %s Remote Laboratory FOSS Contributors\n\r", FOSS_COPYRIGHT_DATE);
|
|
|
|
getMyIP();
|
|
|
|
printf("[INFO] Reading configuration from %s...\n\r", filename);
|
|
readConfig();
|
|
|
|
if (serialBaud != 0) {
|
|
printf("[INFO] Opening serial port...\n\r");
|
|
if (setupSerial() != 0) {
|
|
successful = 0;
|
|
}
|
|
printf("[INFO] Closing serial port...\n\r");
|
|
close(fd_tty);
|
|
}
|
|
|
|
if (successful == 1) {
|
|
// Open query port 4001
|
|
if (RunQueryServer() == -1) {
|
|
successful = 0;
|
|
}
|
|
else {
|
|
printf("[INFO] Query process started on %s:%s\n\r", serverAddress, queryservice_port);
|
|
}
|
|
}
|
|
|
|
if (successful == 1) {
|
|
// Open main port 4000
|
|
if (RunMainServer() == -1) {
|
|
successful = 0;
|
|
}
|
|
else {
|
|
printf("[INFO] Main port opened on %s:%s\n\r", serverAddress, mainservice_port);
|
|
}
|
|
}
|
|
|
|
if (successful == 1) {
|
|
while (1) {
|
|
//musleep(1);
|
|
musleep(10);
|
|
//musleep(50);
|
|
//musleep(100);
|
|
//musleep(250);
|
|
//musleep(1000);
|
|
|
|
// Execute Query Server
|
|
memcpy(&rfds_query, &afds_query, sizeof(rfds_query));
|
|
if (select(nfds_query, &rfds_query, (fd_set *)0, (fd_set *)0, &server_multiplexer) < 0) {
|
|
//errexit("select: %s\n\r", strerror(errno));
|
|
}
|
|
if (FD_ISSET(msock_query, &rfds_query)) {
|
|
int ssock_query;
|
|
alen_query = sizeof(fsin_query);
|
|
ssock_query = accept(msock_query, (struct sockaddr *)&fsin_query, &alen_query);
|
|
if (ssock_query >= 0) {
|
|
printf("[INFO] Query received from %s\n\r", inet_ntoa(fsin_query.sin_addr));
|
|
|
|
FD_SET(ssock_query, &afds_query);
|
|
if (strlen(gpibServerString) > 0) {
|
|
quiet_write(ssock_query, gpibServerString, strlen(gpibServerString));
|
|
quiet_write(ssock_query, "\r", strlen("\r"));
|
|
}
|
|
if (serialBaud != 0) {
|
|
quiet_write(ssock_query, "Auxiliary serial port: ", strlen("Auxiliary serial port: "));
|
|
quiet_write(ssock_query, serialportDescription, strlen(serialportDescription));
|
|
quiet_write(ssock_query, " baud\r", strlen(" baud\r"));
|
|
}
|
|
if (scopeFound == 3) {
|
|
quiet_write(ssock_query, scopeLongDescription(scopeType), strlen(scopeLongDescription(scopeType)));
|
|
quiet_write(ssock_query, " oscilloscope\r", strlen(" oscilloscope\r"));
|
|
}
|
|
if (funcgenFound == 3) {
|
|
quiet_write(ssock_query, funcgenLongDescription(funcgenType), strlen(funcgenLongDescription(funcgenType)));
|
|
quiet_write(ssock_query, " signal generator\r", strlen(" signal generator\r"));
|
|
}
|
|
if (commanalyzerFound == 3) {
|
|
quiet_write(ssock_query, commanalyzerLongDescription(commanalyzerType), strlen(commanalyzerLongDescription(commanalyzerType)));
|
|
quiet_write(ssock_query, " communications analyzer\r", strlen(" communications analyzer\r"));
|
|
}
|
|
}
|
|
else {
|
|
printf("[WARN] Unable to accept query connection\n\r");
|
|
}
|
|
}
|
|
for (fd_query=0; fd_query < nfds_query; fd_query++) {
|
|
if(fd_query != msock_query && FD_ISSET(fd_query, &rfds_query)) {
|
|
if(queryserver(fd_query) == 0) {
|
|
(void) close(fd_query);
|
|
FD_CLR(fd_query, &afds_query);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Execute Main Server
|
|
memcpy(&rfds_mainserver, &afds_mainserver, sizeof(rfds_mainserver));
|
|
if (select(nfds_mainserver, &rfds_mainserver, (fd_set *)0, (fd_set *)0, &server_multiplexer) < 0) {
|
|
//errexit("select: %s\n\r", strerror(errno));
|
|
}
|
|
if (FD_ISSET(msock_mainserver, &rfds_mainserver)) {
|
|
int ssock_mainserver;
|
|
alen_mainserver = sizeof(fsin_mainserver);
|
|
ssock_mainserver = accept(msock_mainserver, (struct sockaddr *)&fsin_mainserver, &alen_mainserver);
|
|
|
|
optval = 4194304;
|
|
status = setsockopt(ssock_mainserver, SOL_SOCKET, SO_SNDBUF, &optval, sizeof(optval));
|
|
printf("[INFO] Socket send buffer size set to %ld bytes\n", optval, status);
|
|
|
|
if (ssock_mainserver >= 0) {
|
|
//printf("[INFO] Connection established with %s\n\r", &fsin_mainserver.sin_addr);
|
|
}
|
|
FD_SET(ssock_mainserver, &afds_mainserver);
|
|
|
|
fcntl(ssock_mainserver, F_SETFL, (fcntl(ssock_mainserver, F_GETFL) | O_NONBLOCK));
|
|
//int sockbufsize = 0;
|
|
//int size = sizeof(int);
|
|
//getsockopt(ssock_mainserver, SOL_SOCKET, SO_RCVBUF, (char *)&sockbufsize, &size);
|
|
//printf("[DEBG] SO_RCVBUF: %d\n\r", sockbufsize);
|
|
main_server_state[ssock_mainserver] = 1;
|
|
//write(ssock_mainserver, "OPENA", strlen("OPENA"));
|
|
|
|
printf("[INFO] Connection established with client %s\n\r", inet_ntoa(fsin_mainserver.sin_addr));
|
|
}
|
|
for (fd_mainserver=0; fd_mainserver < nfds_mainserver; ++fd_mainserver) {
|
|
if (fd_mainserver != msock_mainserver && FD_ISSET(fd_mainserver, &rfds_mainserver)) {
|
|
if (mainserver(fd_mainserver) == 0) {
|
|
(void) close(fd_mainserver);
|
|
FD_CLR(fd_mainserver, &afds_mainserver);
|
|
if (server_fd_with_serial != -1) {
|
|
printf("[INFO] Closing serial port...\n\r");
|
|
close(fd_tty);
|
|
}
|
|
printf("[INFO] Connection with client terminated\n\r");
|
|
}
|
|
}
|
|
}
|
|
if (server_fd_with_serial != -1) {
|
|
mainserver(server_fd_with_serial);
|
|
}
|
|
}
|
|
}
|
|
|
|
return EXIT_SUCCESS;
|
|
} |