blob: 06934fef252849312c2efe05e3ca51cc13e16fe7 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/* `struct termios' speed frobnication functions. AIX version.
Copyright (C) 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <stddef.h>
#include <errno.h>
#include <termios.h>
/* Return the output baud rate stored in *TERMIOS_P. */
speed_t
cfgetospeed (termios_p)
const struct termios *termios_p;
{
return termios_p->c_cflag & 0x0000000f;
}
/* Return the input baud rate stored in *TERMIOS_P. */
speed_t
cfgetispeed (termios_p)
const struct termios *termios_p;
{
return (termios_p->c_cflag & 0x000f0000) >> 16;
}
/* Set the output baud rate stored in *TERMIOS_P to SPEED. */
int
cfsetospeed (termios_p, speed)
struct termios *termios_p;
speed_t speed;
{
if (termios_p == NULL)
{
__set_errno (EINVAL);
return -1;
}
termios_p->c_cflag &= ~0x0000000f;
termios_p->c_cflag |= speed & 0x0000000f;
return 0;
}
/* Set the input baud rate stored in *TERMIOS_P to SPEED. */
int
cfsetispeed (termios_p, speed)
struct termios *termios_p;
speed_t speed;
{
if (termios_p == NULL)
{
__set_errno (EINVAL);
return -1;
}
termios_p->c_cflag &= ~0x000f0000;
termios_p->c_cflag |= (speed << 16) & ~0x000f0000;
return 0;
}
|
