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|
/*
* tty.c:
*
* Copyright (c) 2008 James McKenzie <james@fishsoup.dhs.org>,
* All rights reserved.
*
*/
static char rcsid[] = "$Id$";
/*
* $Log$
* Revision 1.11 2008/02/20 18:31:53 james
* *** empty log message ***
*
* Revision 1.10 2008/02/15 23:52:12 james
* *** empty log message ***
*
* Revision 1.9 2008/02/15 03:32:07 james
* *** empty log message ***
*
* Revision 1.8 2008/02/14 10:36:18 james
* *** empty log message ***
*
* Revision 1.7 2008/02/14 10:34:30 james
* *** empty log message ***
*
* Revision 1.6 2008/02/13 16:59:34 james
* *** empty log message ***
*
* Revision 1.5 2008/02/13 16:57:29 james
* *** empty log message ***
*
* Revision 1.4 2008/02/12 22:36:46 james
* *** empty log message ***
*
* Revision 1.3 2008/02/09 15:47:28 james
* *** empty log message ***
*
*/
#include "project.h"
static int
speed_t_to_baud (speed_t s)
{
switch (s)
{
#ifdef B0
case B0:
return 0;
#endif
#ifdef B50
case B50:
return 50;
#endif
#ifdef B75
case B75:
return 75;
#endif
#ifdef B110
case B110:
return 110;
#endif
#ifdef B134
case B134:
return 134;
#endif
#ifdef B150
case B150:
return 150;
#endif
#ifdef B200
case B200:
return 200;
#endif
#ifdef B300
case B300:
return 300;
#endif
#ifdef B600
case B600:
return 600;
#endif
#ifdef B1200
case B1200:
return 1200;
#endif
#ifdef B1800
case B1800:
return 1800;
#endif
#ifdef B2400
case B2400:
return 2400;
#endif
#ifdef B4800
case B4800:
return 4800;
#endif
#ifdef B9600
case B9600:
return 9600;
#endif
#ifdef B19200
case B19200:
return 19200;
#endif
#ifdef B38400
case B38400:
return 38400;
#endif
#ifdef B57600
case B57600:
return 57600;
#endif
#ifdef B115200
case B115200:
return 115200;
#endif
#ifdef B230400
case B230400:
return 230400;
#endif
}
return -1;
}
static speed_t
baud_to_speed_t (int baud)
{
switch (baud)
{
#ifdef B0
case 0:
return B0;
#endif
#ifdef B50
case 50:
return B50;
#endif
#ifdef B75
case 75:
return B75;
#endif
#ifdef B110
case 110:
return B110;
#endif
#ifdef B134
case 134:
return B134;
#endif
#ifdef B150
case 150:
return B150;
#endif
#ifdef B200
case 200:
return B200;
#endif
#ifdef B300
case 300:
return B300;
#endif
#ifdef B600
case 600:
return B600;
#endif
#ifdef B1200
case 1200:
return B1200;
#endif
#ifdef B1800
case 1800:
return B1800;
#endif
#ifdef B2400
case 2400:
return B2400;
#endif
#ifdef B4800
case 4800:
return B4800;
#endif
#ifdef B9600
case 9600:
return B9600;
#endif
#ifdef B19200
case 19200:
return B19200;
#endif
#ifdef B38400
case 38400:
return B38400;
#endif
#ifdef B57600
case 57600:
return B57600;
#endif
#ifdef B115200
case 115200:
return B115200;
#endif
#ifdef B230400
case 230400:
return B230400;
#endif
}
return -1;
}
void
tty_pre_select (TTY * t, fd_set * rfds, fd_set * wfds)
{
int line;
struct timeval now, dif;
if (t->hanging_up)
{
gettimeofday (&now, NULL);
timersub (&now, &t->hangup_clock, &dif);
if (dif.tv_sec)
{
#if 0
fprintf (stderr, "+DTR\n");
#endif
line = TIOCM_DTR;
ioctl (t->rfd, TIOCMBIS, &line);
t->hanging_up = 0;
}
}
FD_SET (t->rfd, rfds);
}
int
tty_get_status (TTY * t, TTY_Status * s)
{
s->lines = 0;
ioctl (t->rfd, TIOCMGET, &s->lines);
#if 0
if (t->hanging_up)
fprintf (stderr, "s->lines & TIOCM_DTR=%x\n", s->lines & TIOCM_DTR);
#endif
if (tcgetattr (t->rfd, &s->termios))
return -1;
s->baud = speed_t_to_baud (cfgetispeed (&s->termios));
s->blocked = t->blocked;
return 0;
}
void
tty_set_baud (TTY * t, int rate)
{
struct termios tios = { 0 };
speed_t s = baud_to_speed_t (rate);
if (s == (speed_t) - 1)
return;
if (tcgetattr (t->rfd, &tios))
return;
cfsetispeed (&tios, s);
cfsetospeed (&tios, s);
tcsetattr (t->rfd, TCSANOW, &tios);
}
void
tty_send_break (TTY * t)
{
tcsendbreak (t->wfd, 0);
}
void
tty_set_flow (TTY * t, int flow)
{
struct termios tios = { 0 };
if (tcgetattr (t->rfd, &tios))
return;
if (flow)
tios.c_cflag |= CRTSCTS;
else
tios.c_cflag &= ~CRTSCTS;
tcsetattr (t->rfd, TCSANOW, &tios);
}
void
tty_hangup (TTY * t)
{
int line;
line = TIOCM_DTR;
ioctl (t->rfd, TIOCMBIC, &line);
t->hanging_up = 1;
gettimeofday (&t->hangup_clock, NULL);
#if 0
fprintf (stderr, "-DTR\n");
#endif
}
#if 0
int
tty_post_select (Context * c, fd_set * rfds, fd_set * wfds)
{
if (FD_ISSET (c->t->rfd, rfds))
{
if (vt102_dispatch (&c))
return -1;
}
return 0;
}
#endif
|
