pc-tools/src-filters/load.c

   1 #include <stdio.h>
   2 #include <termios.h>
   3 #include <sys/types.h>
   4 #include <sys/stat.h>
   5 #include <fcntl.h>
   6 #include <signal.h>
   7 #include <stdlib.h>
   8
   9 struct termios orgstate;
  10 struct termios workstate;
  11
  12 #define PORT_FILE "/dev/ttyS0"
  13 #define BUFFER_SIZE 1000000
  14
  15 char * buffer;
  16 int sp, ep, count, portfd;
  17
  18 void sighandler(int sig){
  19     sp=0;
  20     ep=count-1;
  21     close (portfd);
  22 //    fprintf(stderr,"%i %i\n", sp, ep);
  23     if (count>0) {
  24         while(buffer[sp]==0) sp++;
  25         while(buffer[ep]==0) ep--;
  26     }
  27
  28     write(1,buffer+sp,ep-sp+1);
  29     tcdrain(2);
  30     fprintf(stderr,"Eingelesen: %i\n",ep-sp+1);
  31     tcsetattr(portfd, TCSANOW, &orgstate);
  32     close(portfd);
  33     exit(0);
  34 }
  35
  36 int main (int argc, char ** argv){
  37
  38     portfd=open(PORT_FILE, O_RDWR);
  39     tcgetattr(portfd, &orgstate);
  40     tcgetattr(portfd, &workstate);
  41     cfmakeraw(&workstate);
  42 //    workstate.c_oflag=0;
  43     workstate.c_cflag|=CS8+CREAD+CLOCAL+CRTSCTS+CSTOPB    ;
  44 //    workstate.c_lflag=0;
  45     cfsetspeed(&workstate, B4800);
  46     tcsetattr(portfd, TCSANOW, &workstate);
  47     count=0;
  48
  49     signal(SIGINT, sighandler);
  50     buffer=(char *) malloc(BUFFER_SIZE);
  51     fprintf(stderr, "Warte auf Daten. Einspielen und dann CTRL-C drücken.\n");
  52
  53     while(1) {
  54         int erg=read(portfd, buffer+count, 1);
  55         if (erg>0) count+=erg;
  56     }
  57
  58
  59 } //main();
  60 // Ende.