1 /* 2 * Copyright (c) 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)acucommon.c 8.1 (Berkeley) 6/6/93 30 * $FreeBSD: src/usr.bin/tip/libacu/acucommon.c,v 1.3 1999/08/28 01:06:30 peter Exp $ 31 */ 32 33 /* 34 * Routines for calling up on a Courier modem. 35 * Derived from Hayes driver. 36 */ 37 #include "acucommon.h" 38 #include "tip.h" 39 40 #include <err.h> 41 #include <unistd.h> 42 43 #include <sys/types.h> 44 #include <sys/times.h> 45 46 void 47 acu_nap(unsigned int how_long) 48 { 49 struct timeval t; 50 t.tv_usec = (how_long % 1000) * 1000; 51 t.tv_sec = how_long / 1000; 52 (void) select (0, NULL, NULL, NULL, &t); 53 } 54 55 void 56 acu_hw_flow_control(int hw_flow_control) 57 { 58 struct termios t; 59 if (tcgetattr (FD, &t) == 0) { 60 if (hw_flow_control) 61 t.c_cflag |= CRTSCTS; 62 else 63 t.c_cflag &= ~CRTSCTS; 64 tcsetattr (FD, TCSANOW, &t); 65 } 66 } 67 68 int 69 acu_flush(void) 70 { 71 int flags = 0; 72 return (ioctl (FD, TIOCFLUSH, &flags) == 0); /* flush any clutter */ 73 } 74 75 int 76 acu_getspeed(void) 77 { 78 struct termios term; 79 tcgetattr (FD, &term); 80 return (term.c_ospeed); 81 } 82 83 int 84 acu_setspeed(int speed) 85 { 86 int rc = 0; 87 struct termios term; 88 if (tcgetattr (FD, &term) == 0) { 89 cfsetspeed (&term, speed); 90 if (tcsetattr (FD, TCSANOW, &term) == 0) 91 ++rc; 92 } 93 return (rc); 94 } 95 96 void 97 acu_hupcl(void) 98 { 99 struct termios term; 100 tcgetattr (FD, &term); 101 term.c_cflag |= HUPCL; 102 tcsetattr (FD, TCSANOW, &term); 103 } 104 105 /* end of acucommon.c */ 106