2 * Copyright (c) 1986, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 static char sccsid[] = "@(#)acucommon.c 8.1 (Berkeley) 6/6/93";
38 static const char rcsid[] =
39 "$FreeBSD: src/usr.bin/tip/libacu/acucommon.c,v 1.3 1999/08/28 01:06:30 peter Exp $";
43 * Routines for calling up on a Courier modem.
44 * Derived from Hayes driver.
52 #include <sys/types.h>
53 #include <sys/times.h>
56 void acu_nap (unsigned int how_long)
59 t.tv_usec = (how_long % 1000) * 1000;
60 t.tv_sec = how_long / 1000;
61 (void) select (0, NULL, NULL, NULL, &t);
65 void acu_nap (unsigned int how_long)
67 (void) usleep (how_long * 1000);
73 * Code stolen from /usr/src/lib/libc/gen/sleep.c
75 #define mask(s) (1<<((s)-1))
76 #define setvec(vec, a) \
77 vec.sv_handler = a; vec.sv_mask = vec.sv_onstack = 0
81 static void acunap_napx()
86 void acu_nap (unsigned int how_long)
89 struct itimerval itv, oitv;
90 register struct itimerval *itp = &itv;
91 struct sigvec vec, ovec;
93 timerclear(&itp->it_interval);
94 timerclear(&itp->it_value);
95 if (setitimer(ITIMER_REAL, itp, &oitv) < 0)
97 setvec(ovec, SIG_DFL);
98 omask = sigblock(mask(SIGALRM));
99 itp->it_value.tv_sec = how_long / 1000;
100 itp->it_value.tv_usec = ((how_long % 1000) * 1000);
101 setvec(vec, acunap_napx);
103 (void) sigvec(SIGALRM, &vec, &ovec);
104 (void) setitimer(ITIMER_REAL, itp, (struct itimerval *)0);
106 sigpause(omask &~ mask(SIGALRM));
107 (void) sigvec(SIGALRM, &ovec, (struct sigvec *)0);
108 (void) setitimer(ITIMER_REAL, &oitv, (struct itimerval *)0);
109 (void) sigsetmask(omask);
112 #endif /* HAVE_USLEEP */
114 void acu_hw_flow_control (hw_flow_control)
118 if (tcgetattr (FD, &t) == 0) {
120 t.c_cflag |= CRTSCTS;
122 t.c_cflag &= ~CRTSCTS;
123 tcsetattr (FD, TCSANOW, &t);
125 #endif /* HAVE_TERMIOS */
132 return (ioctl (FD, TIOCFLUSH, &flags) == 0); /* flush any clutter */
135 return (ioctl (FD, TIOCGETP, &buf) == 0 && ioctl (FD, TIOCSETP, &buf) == 0);
143 tcgetattr (FD, &term);
144 return (term.c_ospeed);
145 #else /* HAVE_TERMIOS */
147 ioctl (FD, TIOCGETP, &buf);
148 return (buf.sg_ospeed);
152 int acu_setspeed (int speed)
157 if (tcgetattr (FD, &term) == 0) {
158 #ifndef _POSIX_SOURCE
159 cfsetspeed (&term, speed);
161 cfsetispeed (&term, speed);
162 cfsetospeed (&term, speed);
164 if (tcsetattr (FD, TCSANOW, &term) == 0)
167 #else /* HAVE TERMIOS */
169 if (ioctl(FD, TIOCGETP, &sb) < 0) {
173 sb.sg_ispeed = sb.sg_ospeed = speed;
174 if (ioctl(FD, TIOCSETP, &sb) < 0) {
180 #endif /* HAVE TERMIOS */
188 tcgetattr (FD, &term);
189 term.c_cflag |= HUPCL;
190 tcsetattr (FD, TCSANOW, &term);
191 #elif defined(TIOCHPCL)
192 ioctl(FD, TIOCHPCL, 0);
196 /* end of acucommon.c */