17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7257d1b4Sraf  * Common Development and Distribution License (the "License").
6*7257d1b4Sraf  * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate  *
87c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate  * and limitations under the License.
127c478bd9Sstevel@tonic-gate  *
137c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate  *
197c478bd9Sstevel@tonic-gate  * CDDL HEADER END
207c478bd9Sstevel@tonic-gate  */
21*7257d1b4Sraf 
227c478bd9Sstevel@tonic-gate /*
23*7257d1b4Sraf  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
247c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate  */
267c478bd9Sstevel@tonic-gate 
277c478bd9Sstevel@tonic-gate /*	Copyright (c) 1988 AT&T	*/
287c478bd9Sstevel@tonic-gate /*	  All Rights Reserved  	*/
297c478bd9Sstevel@tonic-gate 
30*7257d1b4Sraf #pragma weak _cfsetispeed = cfsetispeed
317c478bd9Sstevel@tonic-gate 
32*7257d1b4Sraf #include "lint.h"
337c478bd9Sstevel@tonic-gate #include <sys/types.h>
347c478bd9Sstevel@tonic-gate #include <sys/termios.h>
357c478bd9Sstevel@tonic-gate 
367c478bd9Sstevel@tonic-gate /*
377c478bd9Sstevel@tonic-gate  * sets the input baud rate stored in c_cflag to speed
387c478bd9Sstevel@tonic-gate  */
397c478bd9Sstevel@tonic-gate 
407c478bd9Sstevel@tonic-gate int
cfsetispeed(struct termios * termios_p,speed_t speed)417c478bd9Sstevel@tonic-gate cfsetispeed(struct termios *termios_p, speed_t speed)
427c478bd9Sstevel@tonic-gate {
437c478bd9Sstevel@tonic-gate 	/*
447c478bd9Sstevel@tonic-gate 	 * If the input speed is zero, set it to output speed
457c478bd9Sstevel@tonic-gate 	 */
467c478bd9Sstevel@tonic-gate 	if (speed == 0) {
477c478bd9Sstevel@tonic-gate 		speed = termios_p->c_cflag & CBAUD;
487c478bd9Sstevel@tonic-gate 		if (termios_p->c_cflag & CBAUDEXT)
497c478bd9Sstevel@tonic-gate 			speed += (CBAUD + 1);
507c478bd9Sstevel@tonic-gate 	}
517c478bd9Sstevel@tonic-gate 
527c478bd9Sstevel@tonic-gate 	if ((speed << 16) > CIBAUD) {
537c478bd9Sstevel@tonic-gate 		termios_p->c_cflag |= CIBAUDEXT;
547c478bd9Sstevel@tonic-gate 		speed -= ((CIBAUD >> 16) + 1);
557c478bd9Sstevel@tonic-gate 	} else
567c478bd9Sstevel@tonic-gate 		termios_p->c_cflag &= ~CIBAUDEXT;
577c478bd9Sstevel@tonic-gate 	termios_p->c_cflag =
587c478bd9Sstevel@tonic-gate 	    (termios_p->c_cflag & ~CIBAUD) | ((speed << 16) & CIBAUD);
597c478bd9Sstevel@tonic-gate 	return (0);
607c478bd9Sstevel@tonic-gate }
61