diff options
Diffstat (limited to 'servers/gpib_server_lin/src/main_server_lin.c')
| -rw-r--r-- | servers/gpib_server_lin/src/main_server_lin.c | 1340 |
1 files changed, 0 insertions, 1340 deletions
diff --git a/servers/gpib_server_lin/src/main_server_lin.c b/servers/gpib_server_lin/src/main_server_lin.c deleted file mode 100644 index 9788566..0000000 --- a/servers/gpib_server_lin/src/main_server_lin.c +++ /dev/null @@ -1,1340 +0,0 @@ -/* - * Remote Laboratory Instrumentation Server - * - * 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 3 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, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - * - * (c) 2009 Timothy Pearson - * Raptor Engineering - * http://www.raptorengineeringinc.com - */ - -#include <stdio.h> /* perror() */ -#include <stdlib.h> /* atoi() */ -#include <string.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <unistd.h> /* read() */ -#include <netinet/in.h> -#include <arpa/inet.h> -#include <netdb.h> -#include <fcntl.h> -#include <glib.h> -#include <gtk/gtk.h> -#include <termios.h> -#include <unistd.h> -#include <sys/signal.h> -#include <sys/types.h> -#include <gpib/ib.h> -#include <time.h> -#include "parameters.h" -#include "scope_functions.h" -#include "signal_functions.h" -#include "commanalyzer_functions.h" - -// Server variables -char *serverAddress; -unsigned short serverPort = 4000; -char *serialportDescription; -char *gpibServerString; - -// Scope parameters -char *scopeBoard; -char *scopeDevice; -char *scopeType; -char scopeFound = 0; -int scope_board_device; - -// Function generator parameters -char *funcgenBoard; -char *funcgenDevice; -char *funcgenType; -char funcgenFound = 0; -int funcgen_board_device; - -// Communications analyzer parameters -char *commanalyzerBoard; -char *commanalyzerDevice; -char *commanalyzerType; -char commanalyzerFound = 0; -int commanalyzer_board_device; - -// Serial port parameters -char *serialDevice; -long serialBaud = 0; - -// Serial stuff -int tty; -struct termios oldtio, newtio; //place for old and new port settings for serial port -struct termios oldkey, newkey; //place tor old and new port settings for keyboard teletype -struct sigaction saio; //definition of signal action -char buf[256]; //buffer for where data is put -int fd_tty; -int wait_flag=TRUE; //TRUE while no signal received -int server_fd_with_serial = -1; - -// Network variables -int clientSocket; -int status = 0; -int last_command_acked = 0; -struct hostent *hostPtr = NULL; -struct sockaddr_in serverName = { 0 }; -int authentication_timer_check(void); -long optval; -int return_status; - -// Timing variables -unsigned int authentication_timer; -unsigned char enable_authentication_timer; - -unsigned char buffer[100000]; - -// Generic server stuff -#define QLEN 100000 -u_short portbase = 0; -struct timeval server_multiplexer; - -// Query server stuff -char *queryservice_port = "4003"; -struct sockaddr_in fsin_query; -int msock_query; -fd_set rfds_query; -fd_set afds_query; -int alen_query; -int fd_query; -int nfds_query; - -// Main server stuff -char *mainservice_port = "4002"; -struct sockaddr_in fsin_mainserver; -int msock_mainserver; -fd_set rfds_mainserver; -fd_set afds_mainserver; -int alen_mainserver; -int fd_mainserver; -int nfds_mainserver; -int ssock_mainserver; -//char main_server_in_use; -//char main_server_fd; -char main_server_state[65535]; -char auth_char_pos; -char auth_string[40]; -int k; -int m; - -// Configuration stuff -static const char filename[] = "remotefpga_gpib.conf"; -char linedata [256]; - -// Shut up GCC -void quiet_write(int fd, const void *buf, size_t count) { - int retcode = write(fd, buf, count); - if (retcode < 0) { - printf("[WARN] Network error\n\r"); - } -} - -void getMyIP (void) -{ - char Buf [256]; - struct hostent* Host; - gethostname (Buf, 256); - Host=(struct hostent *) gethostbyname (Buf); - serverAddress=strdup(inet_ntoa(*((struct in_addr *)Host->h_addr))); - //serverAddress=strdup(Buf); -} - -int msleep(unsigned long milisec) { - struct timespec req={0}; - time_t sec=(int)(milisec/1000); - milisec=milisec-(sec*1000); - req.tv_sec=sec; - req.tv_nsec=milisec*1000000L; - while(nanosleep(&req,&req)==-1) - continue; - return 1; -} - -int musleep(unsigned long milisec) { - struct timespec req={0}; - time_t sec=(int)(milisec/1000); - milisec=milisec-(sec*1000); - req.tv_sec=sec; - req.tv_nsec=milisec*1000L; - while(nanosleep(&req,&req)==-1) - continue; - return 1; -} - -void signal_handler_IO (int status) { - wait_flag = FALSE; -} - -int setupSerial(void) { - struct termios oldtio,newtio; - - fd_tty = open(serialDevice, O_RDWR | O_NOCTTY | O_NONBLOCK | O_APPEND); - if (fd_tty < 0) { - printf("[FAIL] Unable to open serial device %s\n\r", serialDevice); - return 1; - } - - tcgetattr(fd_tty,&oldtio); // Save current port settings - - bzero(&newtio, sizeof(newtio)); - newtio.c_cflag = serialBaud | CS8 | CLOCAL | CREAD; - newtio.c_iflag = IGNPAR; - newtio.c_oflag = 0; - - // Set input mode (non-canonical, no echo,...) - newtio.c_lflag = 0; - - newtio.c_cc[VTIME] = 0; // Inter-character timer unused - newtio.c_cc[VMIN] = 0; // Blocking read unused - - tcflush(fd_tty, TCIFLUSH); - tcsetattr(fd_tty,TCSANOW,&newtio); - - return 0; -} - -int getConfig(char *parameter, char *line) { - int i; - - if (strstr(line, parameter) != NULL) { - for (i=0; i<(strlen(line)-strlen(parameter));i++) { - linedata[i] = line[i+strlen(parameter)]; - } - linedata[i-1]=0; - - return 0; - } - else { - return 1; - } -} - -void concatenateStrings(char * str1, char * str2) { - char *str3; - - str3 = (char *)calloc(strlen(str1) + strlen(str2) + 1, sizeof(char)); - strcpy(str3, str1); - strcat(str3, str2); - - str1 = (char *)calloc(strlen(str3) + 1, sizeof(char)); - - strcpy(str1, str3); - - free(str1); - free(str3); -} - -/* returns a device descriptor after prompting user for primary address */ -int open_gpib_device(int minor, int pad) -{ - int ud; - const int sad = 0; - const int send_eoi = 1; - const int eos_mode = 0; - const int timeout = T1s; - - printf("[INFO] Trying to open GPIB device %i on board /dev/gpib%i...\n\r", pad, minor); - ud = ibdev(minor, pad, sad, timeout, send_eoi, eos_mode); - if(ud < 0) - { - printf("[WARN] GPIB interface error\n\r"); - return -1; - } - - return ud; -} - -char * scopeLongDescription (char * scopeType) { - if (strcmp("HP54600OS", scopeType) == 0) { - return "Hewlett Packard 54600 series"; - } - else if (strcmp("TDS744AOS", scopeType) == 0) { - return "Tektronix 744A series"; - } - else { - return "UNKNOWN"; - } -} - -char * commanalyzerLongDescription (char * scopeType) { - if (strcmp("HP8924C", commanalyzerType) == 0) { - return "Hewlett Packard 8924 series"; - } - else { - return "UNKNOWN"; - } -} - -char * funcgenLongDescription (char * funcgenType) { - if (strcmp("AG33250A", funcgenType) == 0) { - return "Agilent AG33250A"; - } - else { - return "UNKNOWN"; - } -} - -int readConfig(void) { - int i; - - FILE *file = fopen ( filename, "r" ); - if ( file != NULL ) { - char line [256]; // or other suitable maximum line size - // read a line - while ( fgets ( line, sizeof line, file ) != NULL ) { - // Parse the line and update global variables (current line in variable "line") - if (getConfig("SERVER_DESCRIPTION:", line) == 0) { - gpibServerString = strdup(linedata); - printf("[INFO] Server Description: %s\n\r", gpibServerString); - } - if (getConfig("SERIAL_PORT:", line) == 0) { - serialDevice = strdup(linedata); - printf("[INFO] Serial Port: %s\n\r", serialDevice); - } - if (getConfig("BAUD_RATE:", line) == 0) { - if (strcmp(linedata, "9600") == 0) serialBaud = B9600; - if (strcmp(linedata, "115200") == 0) serialBaud = B115200; - //serialBaud = B9600; - printf("[INFO] Baud Rate: %s [%ld]\n\r", linedata, serialBaud); - serialportDescription = strdup(linedata); - } - if (getConfig("SCOPE_BOARD:", line) == 0) { - scopeBoard = strdup(linedata); - scopeFound++; - } - if (getConfig("SCOPE_DEVICE:", line) == 0) { - scopeDevice = strdup(linedata); - scopeFound++; - } - if (getConfig("SCOPE_TYPE:", line) == 0) { - scopeType = strdup(linedata); - scopeFound++; - } - if (getConfig("FUNCTION_GENERATOR_BOARD:", line) == 0) { - funcgenBoard = strdup(linedata); - funcgenFound++; - } - if (getConfig("FUNCTION_GENERATOR_DEVICE:", line) == 0) { - funcgenDevice = strdup(linedata); - funcgenFound++; - } - if (getConfig("FUNCTION_GENERATOR_TYPE:", line) == 0) { - funcgenType = strdup(linedata); - funcgenFound++; - } - if (getConfig("COMMANALYZER_BOARD:", line) == 0) { - commanalyzerBoard = strdup(linedata); - commanalyzerFound++; - } - if (getConfig("COMMANALYZER_DEVICE:", line) == 0) { - commanalyzerDevice = strdup(linedata); - commanalyzerFound++; - } - if (getConfig("COMMANALYZER_TYPE:", line) == 0) { - commanalyzerType = strdup(linedata); - commanalyzerFound++; - } - } - fclose ( file ); - if (scopeFound == 3) { - printf("[INFO] Oscilloscope conjectured to be on GPIB address %s:%s\n\r", scopeBoard, scopeDevice); - scope_board_device = open_gpib_device(atoi(scopeBoard), atoi(scopeDevice)); - if (scope_board_device < 0) { - //return 1; - } - else { - time_t rawtime; - struct tm * timeinfo; - char datebuffer [80]; - char timebuffer [80]; - time ( &rawtime ); - timeinfo = localtime ( &rawtime ); - strftime(timebuffer,80,"TIME \"%H:%M:%S\"",timeinfo); - strftime(datebuffer,80,"DATE \"%Y-%m-%d\"",timeinfo); - printf("[INFO] Configuring %s oscilloscope\n\r", scopeLongDescription(scopeType)); - printf("[INFO] %s\n\r", datebuffer); - printf("[INFO] %s\n\r", timebuffer); - if (gpib_write(scope_board_device, timebuffer) == 0) { - gpib_write(scope_board_device, datebuffer); - printf("[INFO] Communication verified\n\r"); - } - else { - printf("[WARN] Communication failed!\n\r"); - } - } - } - if (funcgenFound == 3) { - printf("[INFO] Function generator conjectured to be on GPIB address %s:%s\n\r", funcgenBoard, funcgenDevice); - funcgen_board_device = open_gpib_device(atoi(funcgenBoard), atoi(funcgenDevice)); - if (funcgen_board_device < 0) { - //return 1; - } - else { - printf("[INFO] Configuring %s function generator\n\r", funcgenLongDescription(funcgenType)); - if (gpib_write(funcgen_board_device, "RESET") == 0) { - printf("[INFO] Communication verified\n\r"); - } - else { - printf("[WARN] Communication failed!\n\r"); - } - } - } - if (commanalyzerFound == 3) { - printf("[INFO] Communications analyzer conjectured to be on GPIB address %s:%s\n\r", commanalyzerBoard, commanalyzerDevice); - commanalyzer_board_device = open_gpib_device(atoi(commanalyzerBoard), atoi(commanalyzerDevice)); - if (commanalyzer_board_device < 0) { - //return 1; - } - else { - time_t rawtime; - struct tm * timeinfo; - time ( &rawtime ); - timeinfo = localtime ( &rawtime ); - printf("[INFO] Configuring %s communications analyzer\n\r", commanalyzerLongDescription(commanalyzerType)); - if (commanalyzer_set_time(timeinfo, commanalyzerType, commanalyzer_board_device) == 0) { - commanalyzer_set_date(timeinfo, commanalyzerType, commanalyzer_board_device); - printf("[INFO] Communication verified\n\r"); - } - else { - printf("[WARN] Communication failed!\n\r"); - } - } - } - } - else - { - printf("[WARN] Unable to open configuration file %s\n\r", filename); - return 1; - } - - return 0; -} - -int authentication_timer_check(void) { - authentication_timer++; - - return enable_authentication_timer; -} - -int passivesock(const char *service, const char *transport, int qlen) { - struct servent *pse; - struct protoent *ppe; - struct sockaddr_in sin; - int s; - int type; - - memset(&sin, 0, sizeof(sin)); - sin.sin_family = AF_INET; - sin.sin_addr.s_addr = INADDR_ANY; - - // Map service name to port number - if(pse = getservbyname(service, transport)) { - sin.sin_port = htons(ntohs((u_short)pse->s_port) + portbase); - } - else if((sin.sin_port = htons((u_short)atoi(service))) == 0) { - printf("[FAIL] Query Server Service Entry %s\n\r", service); - return -1; - } - - // Map protocol name to protocol number - if((ppe = getprotobyname(transport)) == 0) { - printf("[FAIL] Query Server Protocol Entry %s\n\r", transport); - return -1; - } - - // Use protocol to choose a socket type - if(strcmp(transport, "udp") == 0) { - type = SOCK_DGRAM; - } - else { - type = SOCK_STREAM; - } - - // Allocate a socket - s = socket(PF_INET, type, ppe->p_proto); - - if(s < 0) { - printf("[FAIL] Socket Error\n\r"); - return -1; - } - - // Bind the socket - if(bind(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) { - printf("[FAIL] Cannot bind to port %s\n\r", service); - return -1; - } - - if(type == SOCK_STREAM && listen(s, qlen) < 0) { - printf("[FAIL] Cannot bind to port %s\n\r", service); - return -1; - } - return s; -} - -int passiveTCP(const char *service, int qlen) { - return passivesock(service, "tcp", qlen); -} - -int queryserver(int fd) { - 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; - k=0; - for (i=0;i<termination_count;i++) { - if (array[i+1] == 176) { - if (degree_found == 0) { - degree_found = 1; - } - else { - degree_found = 3; - } - } - if (degree_found == 2) { - array2[k] = array[i+1]; - k++; - } - if (degree_found == 1) { - array[i] = 0; - degree_found = 2; - k=0; - } - else { - 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; -}
\ No newline at end of file |