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comparison calypso/caltest.c @ 6:0a21a7ffe144

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calypso: caltest front end put together
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 14 Mar 2021 05:26:58 +0000
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5:f6b03af63bf7 6:0a21a7ffe144
1 #include <sys/types.h>
2 #include <sys/file.h>
3 #include <sys/ioctl.h>
4 #include <termios.h>
5 #include <stdio.h>
6 #include <stdlib.h>
7 #include <unistd.h>
8
9 int target_fd;
10
11 open_serial_port(ttyport)
12 char *ttyport;
13 {
14 target_fd = open(ttyport, O_RDWR|O_NONBLOCK);
15 if (target_fd < 0) {
16 perror(ttyport);
17 exit(1);
18 }
19 ioctl(target_fd, TIOCEXCL);
20 return 0;
21 }
22
23 set_termios()
24 {
25 struct termios target_termios;
26
27 target_termios.c_iflag = IGNBRK;
28 target_termios.c_oflag = 0;
29 target_termios.c_cflag = CLOCAL|HUPCL|CREAD|CS8;
30 target_termios.c_lflag = 0;
31 target_termios.c_cc[VMIN] = 1;
32 target_termios.c_cc[VTIME] = 0;
33 cfsetispeed(&target_termios, B115200);
34 cfsetospeed(&target_termios, B115200);
35 if (tcsetattr(target_fd, TCSAFLUSH, &target_termios) < 0) {
36 perror("tcsetattr");
37 exit(1);
38 }
39 return 0;
40 }
41
42 main(argc, argv)
43 char **argv;
44 {
45 char c_arg[16];
46
47 if (argc != 3) {
48 fprintf(stderr, "usage: %s ttyport second-prog\n", argv[0]);
49 exit(1);
50 }
51 open_serial_port(argv[1]);
52 set_termios();
53 sprintf(c_arg, "-C%d", target_fd);
54 execl(argv[2], argv[2], c_arg, (char *) 0);
55 perror(argv[2]);
56 exit(1);
57 }