1 /* 2 * Copyright (C) 2015 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 #ifndef _ANDROID_LEGACY_TERMIOS_INLINES_H_ 30 #define _ANDROID_LEGACY_TERMIOS_INLINES_H_ 31 32 #include <sys/cdefs.h> 33 #include <sys/ioctl.h> 34 #include <sys/types.h> 35 36 #include <linux/termios.h> 37 38 #if __ANDROID_API__ < __ANDROID_API_L__ 39 40 __BEGIN_DECLS 41 42 static __inline int tcgetattr(int fd, struct termios *s) { 43 return ioctl(fd, TCGETS, s); 44 } 45 46 static __inline int tcsetattr(int fd, int __opt, const struct termios *s) { 47 return ioctl(fd, __opt, (void *)s); 48 } 49 50 static __inline int tcflow(int fd, int action) { 51 return ioctl(fd, TCXONC, (void *)(intptr_t)action); 52 } 53 54 static __inline int tcflush(int fd, int __queue) { 55 return ioctl(fd, TCFLSH, (void *)(intptr_t)__queue); 56 } 57 58 static __inline pid_t tcgetsid(int fd) { 59 pid_t _pid; 60 return ioctl(fd, TIOCGSID, &_pid) ? (pid_t)-1 : _pid; 61 } 62 63 static __inline int tcsendbreak(int fd, int __duration) { 64 return ioctl(fd, TCSBRKP, (void *)(uintptr_t)__duration); 65 } 66 67 static __inline speed_t cfgetospeed(const struct termios *s) { 68 return (speed_t)(s->c_cflag & CBAUD); 69 } 70 71 static __inline int cfsetospeed(struct termios *s, speed_t speed) { 72 s->c_cflag = (s->c_cflag & ~CBAUD) | (speed & CBAUD); 73 return 0; 74 } 75 76 static __inline speed_t cfgetispeed(const struct termios *s) { 77 return (speed_t)(s->c_cflag & CBAUD); 78 } 79 80 static __inline int cfsetispeed(struct termios *s, speed_t speed) { 81 s->c_cflag = (s->c_cflag & ~CBAUD) | (speed & CBAUD); 82 return 0; 83 } 84 85 static __inline void cfmakeraw(struct termios *s) { 86 s->c_iflag &= 87 ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON); 88 s->c_oflag &= ~OPOST; 89 s->c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN); 90 s->c_cflag &= ~(CSIZE | PARENB); 91 s->c_cflag |= CS8; 92 } 93 94 static __inline int cfsetspeed(struct termios* s, speed_t speed) { 95 // TODO: check 'speed' is valid. 96 s->c_cflag = (s->c_cflag & ~CBAUD) | (speed & CBAUD); 97 return 0; 98 } 99 100 static __inline int tcdrain(int fd) { 101 // A non-zero argument to TCSBRK means "don't send a break". 102 // The drain is a side-effect of the ioctl! 103 return ioctl(fd, TCSBRK, __BIONIC_CAST(static_cast, unsigned long, 1)); 104 } 105 106 __END_DECLS 107 108 #endif 109 #endif /* _ANDROID_LEGACY_TERMIOS_INLINES_H_ */ 110
