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/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#pragma once
/**
* @file termios.h
* @brief General terminal interfaces.
*/
#include <sys/cdefs.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <linux/termios.h>
__BEGIN_DECLS
#if __ANDROID_API__ >= 28
// This file is implemented as static inlines before API level 28.
// Strictly these functions were introduced in API level 21, but there were bugs
// in cfmakeraw() and cfsetspeed() until 28.
/**
* [cfgetispeed(3)](http://man7.org/linux/man-pages/man3/cfgetispeed.3.html)
* returns the terminal input baud rate.
*/
speed_t cfgetispeed(const struct termios* __t) __INTRODUCED_IN(21);
/**
* [cfgetospeed(3)](http://man7.org/linux/man-pages/man3/cfgetospeed.3.html)
* returns the terminal output baud rate.
*/
speed_t cfgetospeed(const struct termios* __t) __INTRODUCED_IN(21);
/**
* [cfmakeraw(3)](http://man7.org/linux/man-pages/man3/cfmakeraw.3.html)
* configures the terminal for "raw" mode.
*/
void cfmakeraw(struct termios* __t) __INTRODUCED_IN(21);
/**
* [cfsetspeed(3)](http://man7.org/linux/man-pages/man3/cfsetspeed.3.html)
* sets the terminal input and output baud rate.
*
* Returns 0 on success and returns -1 and sets `errno` on failure.
*/
int cfsetspeed(struct termios* __t, speed_t __speed) __INTRODUCED_IN(21);
/**
* [cfsetispeed(3)](http://man7.org/linux/man-pages/man3/cfsetispeed.3.html)
* sets the terminal input baud rate.
*
* Returns 0 on success and returns -1 and sets `errno` on failure.
*/
int cfsetispeed(struct termios* __t, speed_t __speed) __INTRODUCED_IN(21);
/**
* [cfsetospeed(3)](http://man7.org/linux/man-pages/man3/cfsetospeed.3.html)
* sets the terminal output baud rate.
*
* Returns 0 on success and returns -1 and sets `errno` on failure.
*/
int cfsetospeed(struct termios* __t, speed_t __speed) __INTRODUCED_IN(21);
/**
* [tcdrain(3)](http://man7.org/linux/man-pages/man3/tcdrain.3.html)
* waits until all output has been written.
*
* Returns 0 on success and returns -1 and sets `errno` on failure.
*/
int tcdrain(int __fd) __INTRODUCED_IN(21);
/**
* [tcflow(3)](http://man7.org/linux/man-pages/man3/tcflow.3.html)
* suspends (`TCOOFF`) or resumes (`TCOON`) output, or transmits a
* stop (`TCIOFF`) or start (`TCION`) to suspend or resume input.
*
* Returns 0 on success and returns -1 and sets `errno` on failure.
*/
int tcflow(int __fd, int __action) __INTRODUCED_IN(21);
/**
* [tcflush(3)](http://man7.org/linux/man-pages/man3/tcflush.3.html)
* discards pending input (`TCIFLUSH`), output (`TCOFLUSH`), or
* both (`TCIOFLUSH`). (In `<stdio.h>` terminology, this is a purge rather
* than a flush.)
*
* Returns 0 on success and returns -1 and sets `errno` on failure.
*/
int tcflush(int __fd, int __queue) __INTRODUCED_IN(21);
/**
* [tcgetattr(3)](http://man7.org/linux/man-pages/man3/tcgetattr.3.html)
* reads the configuration of the given terminal.
*
* Returns 0 on success and returns -1 and sets `errno` on failure.
*/
int tcgetattr(int __fd, struct termios* __t) __INTRODUCED_IN(21);
/**
* [tcgetsid(3)](http://man7.org/linux/man-pages/man3/tcgetsid.3.html)
* returns the session id corresponding to the given fd.
*
* Returns a non-negative session id on success and
* returns -1 and sets `errno` on failure.
*/
pid_t tcgetsid(int __fd) __INTRODUCED_IN(21);
/**
* [tcsendbreak(3)](http://man7.org/linux/man-pages/man3/tcsendbreak.3.html)
* sends a break.
*
* Returns 0 on success and returns -1 and sets `errno` on failure.
*/
int tcsendbreak(int __fd, int __duration) __INTRODUCED_IN(21);
/**
* [tcsetattr(3)](http://man7.org/linux/man-pages/man3/tcsetattr.3.html)
* writes the configuration of the given terminal.
*
* Returns 0 on success and returns -1 and sets `errno` on failure.
*/
int tcsetattr(int __fd, int __optional_actions, const struct termios* __t) __INTRODUCED_IN(21);
#endif
__END_DECLS
#include <android/legacy_termios_inlines.h>