FreeCalypso > hg > fc-sim-tools

annotate serial/serport.c @ 38:1d96f3b4f155

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serial: started with fcsim-serial-atr
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 20 Mar 2021 19:19:46 +0000
parents
children 61a8ac93764f
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38
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Mychaela Falconia <falcon@freecalypso.org>
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1 #include <sys/types.h>
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2 #include <sys/file.h>
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3 #include <sys/ioctl.h>
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4 #include <asm/ioctls.h>
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5 #include <asm/termbits.h>
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6 #include <stdio.h>
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7 #include <stdlib.h>
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8 #include <unistd.h>
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9
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10 int target_fd;
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11
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12 open_serial_port(ttyport)
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13 char *ttyport;
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14 {
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15 target_fd = open(ttyport, O_RDWR|O_NONBLOCK);
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16 if (target_fd < 0) {
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17 perror(ttyport);
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18 exit(1);
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19 }
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20 ioctl(target_fd, TIOCEXCL);
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21 return 0;
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22 }
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23
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24 set_serial_params(br)
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25 {
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26 struct termios2 target_termios;
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27
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28 target_termios.c_iflag = IGNBRK;
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29 target_termios.c_oflag = 0;
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30 target_termios.c_cflag = BOTHER|CLOCAL|HUPCL|CREAD|CS8|CSTOPB|PARENB;
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31 target_termios.c_lflag = 0;
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32 target_termios.c_cc[VMIN] = 1;
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33 target_termios.c_cc[VTIME] = 0;
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34 target_termios.c_ispeed = br;
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35 target_termios.c_ospeed = br;
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36 if (ioctl(target_fd, TCSETSF2, &target_termios) < 0) {
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37 perror("TCSETSF2");
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38 exit(1);
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39 }
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40 return 0;
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41 }
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42
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43 set_serial_nonblock(state)
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44 int state;
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45 {
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46 ioctl(target_fd, FIONBIO, &state);
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47 }
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48
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49 serial_card_reset()
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50 {
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51 int mctl_arg = TIOCM_DTR | TIOCM_RTS;
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52
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53 ioctl(target_fd, TIOCMBIS, &mctl_arg);
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54 usleep(20000);
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55 ioctl(target_fd, TCFLSH, TCIFLUSH);
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56 ioctl(target_fd, TIOCMBIC, &mctl_arg);
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57 }