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* include/sys/termios.h: Define TIOCMBIS and TIOCMBIC.

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* fhandler.h (class fhandler_serial): Declare switch_modem_lines.
	* fhandler_serial.cc (fhandler_serial::switch_modem_lines): New
	static function to set or clear DTR and/or RTS.
	(fhandler_serial::ioctl): Use switch_modem_lines for TIOCMSET
	and new TIOCMBIS and TIOCMBIC.
	* include/cygwin/version.h: Bump API minor number.
This commit is contained in:
Corinna Vinschen
2005-08-02 09:17:15 +00:00
parent 88c5a50f9f
commit 723d64e667
5 changed files with 76 additions and 39 deletions
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97
winsup/cygwin/fhandler_serial.cc
View File

@@ -376,6 +376,56 @@ fhandler_serial::tcflow (int action)
}
/* switch_modem_lines: set or clear RTS and/or DTR */
int
fhandler_serial::switch_modem_lines (int set, int clr)
{
int res = 0;
if (set & TIOCM_RTS)
{
if (EscapeCommFunction (get_handle (), SETRTS))
rts = TIOCM_RTS;
else
{
__seterrno ();
res = -1;
}
}
else if (clr & TIOCM_RTS)
{
if (EscapeCommFunction (get_handle (), CLRRTS))
rts = 0;
else
{
__seterrno ();
res = -1;
}
}
if (set & TIOCM_DTR)
{
if (EscapeCommFunction (get_handle (), SETDTR))
rts = TIOCM_DTR;
else
{
__seterrno ();
res = -1;
}
}
else if (clr & TIOCM_DTR)
{
if (EscapeCommFunction (get_handle (), CLRDTR))
rts = 0;
else
{
__seterrno ();
res = -1;
}
}
return res;
}
/* ioctl: */
int
fhandler_serial::ioctl (unsigned int cmd, void *buffer)
@@ -432,44 +482,17 @@ fhandler_serial::ioctl (unsigned int cmd, void *buffer)
}
break;
case TIOCMSET:
if (ipbuffer & TIOCM_RTS)
{
if (EscapeCommFunction (get_handle (), SETRTS))
rts = TIOCM_RTS;
else
{
__seterrno ();
res = -1;
}
}
else
{
if (EscapeCommFunction (get_handle (), CLRRTS))
rts = 0;
else
{
__seterrno ();
res = -1;
}
}
if (ipbuffer & TIOCM_DTR)
{
if (EscapeCommFunction (get_handle (), SETDTR))
dtr = TIOCM_DTR;
else
{
__seterrno ();
res = -1;
}
}
else if (EscapeCommFunction (get_handle (), CLRDTR))
dtr = 0;
else
{
__seterrno ();
res = -1;
}
if (switch_modem_lines (ipbuffer, ~ipbuffer))
res = -1;
break;
case TIOCMBIS:
if (switch_modem_lines (ipbuffer, 0))
res = -1;
break;
case TIOCMBIC:
if (switch_modem_lines (0, ipbuffer))
res = -1;
break;
case TIOCCBRK:
if (ClearCommBreak (get_handle ()) == 0)
{