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_
31 #include <sys/cdefs.h>
32 #include <sys/ioctl.h>
33 #include <sys/types.h>
34 #include <stdint.h>
35 #include <linux/termios.h>
37 __BEGIN_DECLS
39 /* Redefine these to match their ioctl number */
40 #undef TCSANOW
41 #define TCSANOW TCSETS
43 #undef TCSADRAIN
44 #define TCSADRAIN TCSETSW
46 #undef TCSAFLUSH
47 #define TCSAFLUSH TCSETSF
49 static __inline__ int tcgetattr(int fd, struct termios *s)
50 {
51 return ioctl(fd, TCGETS, s);
52 }
54 static __inline__ int tcsetattr(int fd, int __opt, const struct termios *s)
55 {
56 return ioctl(fd, __opt, (void *)s);
57 }
59 static __inline__ int tcflow(int fd, int action)
60 {
61 return ioctl(fd, TCXONC, (void *)(intptr_t)action);
62 }
64 static __inline__ int tcflush(int fd, int __queue)
65 {
66 return ioctl(fd, TCFLSH, (void *)(intptr_t)__queue);
67 }
69 static __inline__ pid_t tcgetpgrp(int fd)
70 {
71 pid_t _pid;
72 return ioctl(fd, TIOCGPGRP, &_pid) ? (pid_t)-1 : _pid;
73 }
75 static __inline__ int tcsetpgrp(int fd, pid_t _pid)
76 {
77 return ioctl(fd, TIOCSPGRP, &_pid);
78 }
80 static __inline__ pid_t tcgetsid(int fd)
81 {
82 pid_t _pid;
83 return ioctl(fd, TIOCGSID, &_pid) ? (pid_t)-1 : _pid;
84 }
86 static __inline__ int tcsendbreak(int fd, int __duration)
87 {
88 return ioctl(fd, TCSBRKP, (void *)(uintptr_t)__duration);
89 }
91 static __inline__ speed_t cfgetospeed(const struct termios *s)
92 {
93 return (speed_t)(s->c_cflag & CBAUD);
94 }
96 static __inline__ int cfsetospeed(struct termios *s, speed_t speed)
97 {
98 s->c_cflag = (s->c_cflag & ~CBAUD) | (speed & CBAUD);
99 return 0;
100 }
102 static __inline__ speed_t cfgetispeed(const struct termios *s)
103 {
104 return (speed_t)(s->c_cflag & CBAUD);
105 }
107 static __inline__ int cfsetispeed(struct termios *s, speed_t speed)
108 {
109 s->c_cflag = (s->c_cflag & ~CBAUD) | (speed & CBAUD);
110 return 0;
111 }
113 static __inline__ void cfmakeraw(struct termios *s)
114 {
115 s->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
116 s->c_oflag &= ~OPOST;
117 s->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
118 s->c_cflag &= ~(CSIZE|PARENB);
119 s->c_cflag |= CS8;
120 }
122 __END_DECLS
124 #endif /* _TERMIOS_H_ */