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      1 /*	$NetBSD: termios.c,v 1.1 2009/03/02 09:33:02 nonaka Exp $	*/
      2 /*	$OpenBSD: termios.c,v 1.2 2005/05/24 20:38:20 uwe Exp $	*/
      3 
      4 /*-
      5  * Copyright (c) 1989, 1993
      6  *	The Regents of the University of California.  All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. Neither the name of the University nor the names of its contributors
     17  *    may be used to endorse or promote products derived from this software
     18  *    without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     30  * SUCH DAMAGE.
     31  */
     32 
     33 #include "boot.h"
     34 #include "unixdev.h"
     35 
     36 #include "compat_linux.h"
     37 #include "termios.h"
     38 
     39 int
     40 linux_cfsetspeed(struct linux_termios *t, linux_speed_t speed)
     41 {
     42 	int mask;
     43 	int i;
     44 
     45 	mask = LINUX_B9600;	/* XXX default value should this be 0? */
     46 	for (i = 0; i < __arraycount(linux_speeds); i++) {
     47 		if (speed == linux_speeds[i]) {
     48 			mask = linux_spmasks[i];
     49 			break;
     50 		}
     51 	}
     52 	if (i == __arraycount(linux_speeds))
     53 		return -1;
     54 
     55 	t->c_cflag &= ~LINUX_CBAUD;
     56 	t->c_cflag |= mask;
     57 	return 0;
     58 }
     59 
     60 void
     61 linux_cfmakeraw(struct linux_termios *t)
     62 {
     63 
     64 	t->c_iflag &= ~(LINUX_IMAXBEL
     65 		       |LINUX_IGNBRK
     66 		       |LINUX_BRKINT
     67 		       |LINUX_PARMRK
     68 		       |LINUX_ISTRIP
     69 		       |LINUX_INLCR
     70 		       |LINUX_IGNCR
     71 		       |LINUX_ICRNL
     72 		       |LINUX_IXON);
     73 	t->c_oflag &= ~LINUX_OPOST;
     74 	t->c_lflag &= ~(LINUX_ECHO
     75 		       |LINUX_ECHONL
     76 		       |LINUX_ICANON
     77 		       |LINUX_ISIG
     78 		       |LINUX_IEXTEN);
     79 	t->c_cflag &= ~(LINUX_CSIZE|LINUX_PARENB);
     80 	t->c_cflag |= LINUX_CS8;
     81 }
     82 
     83 int
     84 linux_tcgetattr(int fd, struct linux_termios *t)
     85 {
     86 
     87 	return uioctl(fd, LINUX_TCGETS, t);
     88 }
     89 
     90 /* This function differs slightly from tcsetattr() in libc. */
     91 int
     92 linux_tcsetattr(int fd, int action, struct linux_termios *t)
     93 {
     94 
     95 	switch (action) {
     96 	case LINUX_TCSETS:
     97 	case LINUX_TCSETSW:
     98 	case LINUX_TCSETSF:
     99 		break;
    100 
    101 	default:
    102 		errno = EINVAL;
    103 		return -1;
    104 	}
    105 	return uioctl(fd, action, t);
    106 }
    107 
    108 void dummycall(void);
    109 void
    110 dummycall(void)
    111 {
    112 
    113 	(void)linux_termio_to_bsd_termios;
    114 	(void)bsd_termios_to_linux_termio;
    115 	(void)linux_termios_to_bsd_termios;
    116 	(void)bsd_termios_to_linux_termios;
    117 }
    118