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
33 * @(#)acucommon.c 8.1 (Berkeley) 6/6/93
34 * $FreeBSD: src/usr.bin/tip/libacu/acucommon.c,v 1.3 1999/08/28 01:06:30 peter Exp $
38 * Routines for calling up on a Courier modem.
39 * Derived from Hayes driver.
47 #include <sys/types.h>
48 #include <sys/times.h>
51 void acu_nap (unsigned int how_long)
54 t.tv_usec = (how_long % 1000) * 1000;
55 t.tv_sec = how_long / 1000;
56 (void) select (0, NULL, NULL, NULL, &t);
60 void acu_nap (unsigned int how_long)
62 (void) usleep (how_long * 1000);
68 * Code stolen from /usr/src/lib/libc/gen/sleep.c
70 #define mask(s) (1<<((s)-1))
71 #define setvec(vec, a) \
72 vec.sv_handler = a; vec.sv_mask = vec.sv_onstack = 0
76 static void acunap_napx()
81 void acu_nap (unsigned int how_long)
84 struct itimerval itv, oitv;
85 struct itimerval *itp = &itv;
86 struct sigvec vec, ovec;
88 timerclear(&itp->it_interval);
89 timerclear(&itp->it_value);
90 if (setitimer(ITIMER_REAL, itp, &oitv) < 0)
92 setvec(ovec, SIG_DFL);
93 omask = sigblock(mask(SIGALRM));
94 itp->it_value.tv_sec = how_long / 1000;
95 itp->it_value.tv_usec = ((how_long % 1000) * 1000);
96 setvec(vec, acunap_napx);
98 (void) sigvec(SIGALRM, &vec, &ovec);
99 (void) setitimer(ITIMER_REAL, itp, NULL);
101 sigpause(omask &~ mask(SIGALRM));
102 (void) sigvec(SIGALRM, &ovec, NULL);
103 (void) setitimer(ITIMER_REAL, &oitv, NULL);
104 (void) sigsetmask(omask);
107 #endif /* HAVE_USLEEP */
109 void acu_hw_flow_control (hw_flow_control)
113 if (tcgetattr (FD, &t) == 0) {
115 t.c_cflag |= CRTSCTS;
117 t.c_cflag &= ~CRTSCTS;
118 tcsetattr (FD, TCSANOW, &t);
120 #endif /* HAVE_TERMIOS */
127 return (ioctl (FD, TIOCFLUSH, &flags) == 0); /* flush any clutter */
130 return (ioctl (FD, TIOCGETP, &buf) == 0 && ioctl (FD, TIOCSETP, &buf) == 0);
138 tcgetattr (FD, &term);
139 return (term.c_ospeed);
140 #else /* HAVE_TERMIOS */
142 ioctl (FD, TIOCGETP, &buf);
143 return (buf.sg_ospeed);
147 int acu_setspeed (int speed)
152 if (tcgetattr (FD, &term) == 0) {
153 #ifndef _POSIX_SOURCE
154 cfsetspeed (&term, speed);
156 cfsetispeed (&term, speed);
157 cfsetospeed (&term, speed);
159 if (tcsetattr (FD, TCSANOW, &term) == 0)
162 #else /* HAVE TERMIOS */
164 if (ioctl(FD, TIOCGETP, &sb) < 0) {
168 sb.sg_ispeed = sb.sg_ospeed = speed;
169 if (ioctl(FD, TIOCSETP, &sb) < 0) {
175 #endif /* HAVE TERMIOS */
183 tcgetattr (FD, &term);
184 term.c_cflag |= HUPCL;
185 tcsetattr (FD, TCSANOW, &term);
186 #elif defined(TIOCHPCL)
187 ioctl(FD, TIOCHPCL, 0);
191 /* end of acucommon.c */