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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 
29 #pragma once
30 
31 /**
32  * @file termios.h
33  * @brief General terminal interfaces.
34  */
35 
36 #include <sys/cdefs.h>
37 #include <sys/ioctl.h>
38 #include <sys/types.h>
39 #include <linux/termios.h>
40 
41 __BEGIN_DECLS
42 
43 #if __ANDROID_API__ >= __ANDROID_API_L__
44 // This file is implemented as static inlines before API level 21.
45 
46 /**
47  * [cfgetispeed(3)](http://man7.org/linux/man-pages/man3/cfgetispeed.3.html)
48  * returns the terminal input baud rate.
49  */
50 speed_t cfgetispeed(const struct termios* __t) __INTRODUCED_IN(21);
51 
52 /**
53  * [cfgetospeed(3)](http://man7.org/linux/man-pages/man3/cfgetospeed.3.html)
54  * returns the terminal output baud rate.
55  */
56 speed_t cfgetospeed(const struct termios* __t) __INTRODUCED_IN(21);
57 
58 /**
59  * [cfmakeraw(3)](http://man7.org/linux/man-pages/man3/cfmakeraw.3.html)
60  * configures the terminal for "raw" mode.
61  */
62 void cfmakeraw(struct termios* __t) __INTRODUCED_IN(21);
63 
64 /**
65  * [cfsetspeed(3)](http://man7.org/linux/man-pages/man3/cfsetspeed.3.html)
66  * sets the terminal input and output baud rate.
67  *
68  * Returns 0 on success and returns -1 and sets `errno` on failure.
69  */
70 int cfsetspeed(struct termios* __t, speed_t __speed) __INTRODUCED_IN(21);
71 
72 /**
73  * [cfsetispeed(3)](http://man7.org/linux/man-pages/man3/cfsetispeed.3.html)
74  * sets the terminal input baud rate.
75  *
76  * Returns 0 on success and returns -1 and sets `errno` on failure.
77  */
78 int cfsetispeed(struct termios* __t, speed_t __speed) __INTRODUCED_IN(21);
79 
80 /**
81  * [cfsetospeed(3)](http://man7.org/linux/man-pages/man3/cfsetospeed.3.html)
82  * sets the terminal output baud rate.
83  *
84  * Returns 0 on success and returns -1 and sets `errno` on failure.
85  */
86 int cfsetospeed(struct termios* __t, speed_t __speed) __INTRODUCED_IN(21);
87 
88 /**
89  * [tcdrain(3)](http://man7.org/linux/man-pages/man3/tcdrain.3.html)
90  * waits until all output has been written.
91  *
92  * Returns 0 on success and returns -1 and sets `errno` on failure.
93  */
94 int tcdrain(int __fd) __INTRODUCED_IN(21);
95 
96 /**
97  * [tcflow(3)](http://man7.org/linux/man-pages/man3/tcflow.3.html)
98  * suspends (`TCOOFF`) or resumes (`TCOON`) output, or transmits a
99  * stop (`TCIOFF`) or start (`TCION`) to suspend or resume input.
100  *
101  * Returns 0 on success and returns -1 and sets `errno` on failure.
102  */
103 int tcflow(int __fd, int __action) __INTRODUCED_IN(21);
104 
105 /**
106  * [tcflush(3)](http://man7.org/linux/man-pages/man3/tcflush.3.html)
107  * discards pending input (`TCIFLUSH`), output (`TCOFLUSH`), or
108  * both (`TCIOFLUSH`). (In `<stdio.h>` terminology, this is a purge rather
109  * than a flush.)
110  *
111  * Returns 0 on success and returns -1 and sets `errno` on failure.
112  */
113 int tcflush(int __fd, int __queue) __INTRODUCED_IN(21);
114 
115 /**
116  * [tcgetattr(3)](http://man7.org/linux/man-pages/man3/tcgetattr.3.html)
117  * reads the configuration of the given terminal.
118  *
119  * Returns 0 on success and returns -1 and sets `errno` on failure.
120  */
121 int tcgetattr(int __fd, struct termios* __t) __INTRODUCED_IN(21);
122 
123 /**
124  * [tcgetsid(3)](http://man7.org/linux/man-pages/man3/tcgetsid.3.html)
125  * returns the session id corresponding to the given fd.
126  *
127  * Returns a non-negative session id on success and
128  * returns -1 and sets `errno` on failure.
129  */
130 pid_t tcgetsid(int __fd) __INTRODUCED_IN(21);
131 
132 /**
133  * [tcsendbreak(3)](http://man7.org/linux/man-pages/man3/tcsendbreak.3.html)
134  * sends a break.
135  *
136  * Returns 0 on success and returns -1 and sets `errno` on failure.
137  */
138 int tcsendbreak(int __fd, int __duration) __INTRODUCED_IN(21);
139 
140 /**
141  * [tcsetattr(3)](http://man7.org/linux/man-pages/man3/tcsetattr.3.html)
142  * writes the configuration of the given terminal.
143  *
144  * Returns 0 on success and returns -1 and sets `errno` on failure.
145  */
146 int tcsetattr(int __fd, int __optional_actions, const struct termios* __t) __INTRODUCED_IN(21);
147 
148 #endif
149 
150 __END_DECLS
151 
152 #include <android/legacy_termios_inlines.h>
153