1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 * 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 *  * Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 *  * Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in
12 *    the documentation and/or other materials provided with the
13 *    distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28#ifndef _TERMIOS_H_
29#define _TERMIOS_H_
30
31#include <sys/cdefs.h>
32#include <sys/ioctl.h>
33#include <sys/types.h>
34#include <stdint.h>
35#include <linux/termios.h>
36
37__BEGIN_DECLS
38
39/* Redefine these to match their ioctl number */
40#undef  TCSANOW
41#define TCSANOW    TCSETS
42
43#undef  TCSADRAIN
44#define TCSADRAIN  TCSETSW
45
46#undef  TCSAFLUSH
47#define TCSAFLUSH  TCSETSF
48
49static __inline__ int tcgetattr(int fd, struct termios *s)
50{
51    return ioctl(fd, TCGETS, s);
52}
53
54static __inline__ int tcsetattr(int fd, int __opt, const struct termios *s)
55{
56    return ioctl(fd, __opt, (void *)s);
57}
58
59static __inline__ int tcflow(int fd, int action)
60{
61    return ioctl(fd, TCXONC, (void *)(intptr_t)action);
62}
63
64static __inline__ int tcflush(int fd, int __queue)
65{
66    return ioctl(fd, TCFLSH, (void *)(intptr_t)__queue);
67}
68
69static __inline__ int tcdrain(int fd)
70{
71    return ioctl(fd, TCSBRK, (void *)(intptr_t)1);
72}
73
74static __inline__ pid_t tcgetsid(int fd)
75{
76    pid_t _pid;
77    return ioctl(fd, TIOCGSID, &_pid) ? (pid_t)-1 : _pid;
78}
79
80static __inline__ int tcsendbreak(int fd, int __duration)
81{
82    return ioctl(fd, TCSBRKP, (void *)(uintptr_t)__duration);
83}
84
85static __inline__ speed_t cfgetospeed(const struct termios *s)
86{
87    return (speed_t)(s->c_cflag & CBAUD);
88}
89
90static __inline__ int cfsetospeed(struct termios *s, speed_t  speed)
91{
92    s->c_cflag = (s->c_cflag & ~CBAUD) | (speed & CBAUD);
93    return 0;
94}
95
96static __inline__ speed_t cfgetispeed(const struct termios *s)
97{
98    return (speed_t)(s->c_cflag & CBAUD);
99}
100
101static __inline__ int cfsetispeed(struct termios *s, speed_t  speed)
102{
103    s->c_cflag = (s->c_cflag & ~CBAUD) | (speed & CBAUD);
104  return 0;
105}
106
107static __inline__ void cfmakeraw(struct termios *s)
108{
109    s->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
110    s->c_oflag &= ~OPOST;
111    s->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
112    s->c_cflag &= ~(CSIZE|PARENB);
113    s->c_cflag |= CS8;
114}
115
116__END_DECLS
117
118#endif /* _TERMIOS_H_ */
119