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URL https://opencores.org/ocsvn/eco32/eco32/trunk

Subversion Repositories eco32

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  • This comparison shows the changes necessary to convert path 
    /eco32/tags/eco32-0.26/monitor/loadserv
    from Rev 257 to Rev 270
    ↔ Reverse comparison
  •

Rev 257 → Rev 270

/Makefile
0,0 → 1,19
#
# Makefile for serial line load server
#
 
BUILD = ../../build
 
.PHONY: all install clean
 
all: loadserv
 
install: loadserv
mkdir -p $(BUILD)/bin
cp loadserv $(BUILD)/bin
 
loadserv: loadserv.c
gcc -g -Wall -o loadserv loadserv.c
 
clean:
rm -f *~ loadserv
/loadserv.c
0,0 → 1,200
/*
* loadserv.c -- serial line load server
*/
 
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <fcntl.h>
#include <unistd.h>
#include <termios.h>
 
 
#define SYN ((unsigned char) 's')
#define ACK ((unsigned char) 'a')
 
#define LINE_SIZE 520
 
 
static int debugCmds = 1;
static int debugData = 0;
 
static FILE *loadFile = NULL;
static int sfd = 0;
static struct termios origOptions;
static struct termios currOptions;
 
 
void serialClose(void);
 
 
void error(char *fmt, ...) {
va_list ap;
 
va_start(ap, fmt);
printf("Error: ");
vprintf(fmt, ap);
printf("\n");
va_end(ap);
if (loadFile != NULL) {
fclose(loadFile);
loadFile = NULL;
}
if (sfd != 0) {
serialClose();
sfd = 0;
}
exit(1);
}
 
 
void serialOpen(char *serialPort) {
sfd = open(serialPort, O_RDWR | O_NOCTTY | O_NDELAY);
if (sfd == -1) {
error("cannot open serial port '%s'", serialPort);
}
tcgetattr(sfd, &origOptions);
currOptions = origOptions;
cfsetispeed(&currOptions, B38400);
cfsetospeed(&currOptions, B38400);
currOptions.c_cflag |= (CLOCAL | CREAD);
currOptions.c_cflag &= ~PARENB;
currOptions.c_cflag &= ~CSTOPB;
currOptions.c_cflag &= ~CSIZE;
currOptions.c_cflag |= CS8;
currOptions.c_cflag &= ~CRTSCTS;
currOptions.c_lflag &= ~(ICANON | ECHO | ECHONL | ISIG | IEXTEN);
currOptions.c_iflag &= ~(IGNBRK | BRKINT | IGNPAR | PARMRK);
currOptions.c_iflag &= ~(INPCK | ISTRIP | INLCR | IGNCR | ICRNL);
currOptions.c_iflag &= ~(IXON | IXOFF | IXANY);
currOptions.c_oflag &= ~(OPOST | ONLCR | OCRNL | ONOCR | ONLRET);
tcsetattr(sfd, TCSANOW, &currOptions);
}
 
 
void serialClose(void) {
tcsetattr(sfd, TCSANOW, &origOptions);
close(sfd);
}
 
 
int serialSnd(unsigned char b) {
int n;
 
n = write(sfd, &b, 1);
return n == 1;
}
 
 
int serialRcv(unsigned char *bp) {
int n;
 
n = read(sfd, bp, 1);
return n == 1;
}
 
 
void connect(void) {
unsigned char b;
 
printf("SYN... ");
fflush(stdout);
while (!serialSnd(ACK)) ;
tcdrain(sfd);
printf("ACK... ");
fflush(stdout);
while (!serialRcv(&b)) ;
if (b != ACK) {
error("cannot synchronize with client");
}
printf("connected\n");
}
 
 
int main(int argc, char *argv[]) {
char *serialPort;
char *loadName;
unsigned char b;
unsigned char cmd;
char line[LINE_SIZE];
int n, i;
 
if (argc != 3) {
printf("Usage: %s <serial port> <file to be loaded>\n", argv[0]);
exit(1);
}
serialPort = argv[1];
loadName = argv[2];
loadFile = fopen(loadName, "rt");
if (loadFile == NULL) {
error("cannot open file to be loaded '%s'", loadName);
}
/* open serial interface */
serialOpen(serialPort);
/* wait for client to connect */
printf("Waiting for client...\n");
while (1) {
if (serialRcv(&b) && b == SYN) {
break;
}
}
connect();
fseek(loadFile, 0, SEEK_SET);
/* connected, now handle requests */
while (1) {
while (!serialRcv(&cmd)) ;
if (cmd == 'q') {
/* quit */
if (debugCmds) {
printf("quit\n");
}
break;
}
if (cmd == SYN) {
/* this happens if the client has been reset */
connect();
fseek(loadFile, 0, SEEK_SET);
continue;
}
if (cmd != 'r') {
/* unknown command */
if (debugCmds) {
printf("unknown... UNCMD\n");
}
continue;
}
/* only read requests get here */
if (debugCmds) {
printf("reading record... ");
fflush(stdout);
}
if (fgets(line, LINE_SIZE, loadFile) == NULL) {
if (debugCmds) {
printf("RDERR\n");
}
} else {
n = strlen(line);
for (i = 0; i < n; i++) {
while (!serialSnd(line[i])) ;
}
tcdrain(sfd);
if (debugCmds) {
printf("OK\n");
}
if (debugData) {
printf("%s", line);
}
}
}
if (loadFile != NULL) {
fclose(loadFile);
loadFile = NULL;
}
if (sfd != 0) {
serialClose();
sfd = 0;
}
return 0;
}

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