| 1 | /* This program will act as a dumb terminal, sending characters typed to |
| 2 | the PDP-8 and printing characters received. Can be used to test the |
| 3 | serial communications. |
| 4 | |
| 5 | The 8th bit is stripped for printing and set for sending to the PDP-8. |
| 6 | |
| 7 | On the PC ctrl-break will terminate the program |
| 8 | */ |
| 9 | #ifdef PC |
| 10 | #include "encom.h" |
| 11 | #include <io.h> |
| 12 | #else |
| 13 | #include <termios.h> |
| 14 | #include <unistd.h> |
| 15 | #include <memory.h> |
| 16 | #endif |
| 17 | |
| 18 | #include <stdio.h> |
| 19 | #include <fcntl.h> |
| 20 | #include <time.h> |
| 21 | #include <signal.h> |
| 22 | #include <stdlib.h> |
| 23 | #include <string.h> |
| 24 | |
| 25 | #define ARRAYSIZE(a) (sizeof(a) / sizeof(a[0])) |
| 26 | |
| 27 | int terminate = 0; |
| 28 | |
| 29 | #include "config.c" |
| 30 | #include "comm.c" |
| 31 | |
| 32 | #ifndef STDOUT_FILENO |
| 33 | #define STDOUT_FILENO 0 |
| 34 | #endif |
| 35 | |
| 36 | main(argc,argv) |
| 37 | int argc; |
| 38 | char *argv[]; |
| 39 | { |
| 40 | int fd; |
| 41 | char serial_dev[256]; |
| 42 | long baud; |
| 43 | int two_stop; |
| 44 | unsigned char buf[256]; |
| 45 | int rc; |
| 46 | int cntr; |
| 47 | |
| 48 | printf("Enter ^I (control-I) or ^break to terminate program\n"); |
| 49 | setup_config(&baud,&two_stop,serial_dev); |
| 50 | |
| 51 | fd = init_comm(serial_dev,baud,two_stop); |
| 52 | |
| 53 | while(!terminate) { |
| 54 | if ((rc = getchar_nonblock()) > 0) { |
| 55 | buf[0] = rc | 0x80; |
| 56 | ser_write(fd,(char *)buf,1); |
| 57 | if (rc == '\n') { |
| 58 | buf[0] = '\r' | 0x80; |
| 59 | ser_write(fd,(char *)buf,1); |
| 60 | } |
| 61 | } |
| 62 | if ((rc = ser_read(fd,(char *) buf,sizeof(buf))) < 0) { |
| 63 | perror("\nstdin read failed\n"); |
| 64 | exit(1); |
| 65 | } |
| 66 | if (rc > 0) { |
| 67 | for (cntr = 0; cntr < rc; cntr++) |
| 68 | buf[cntr] &= 0x7f; |
| 69 | write(STDOUT_FILENO, buf, rc); |
| 70 | } |
| 71 | } |
| 72 | printf("Done\n"); |
| 73 | exit(0); |
| 74 | return(0); |
| 75 | } |