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      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 <linux/termios.h>
     33 #include <sys/cdefs.h>
     34 #include <sys/ioctl.h>
     35 #include <sys/types.h>
     36 
     37 __BEGIN_DECLS
     38 
     39 static __inline int tcgetattr(int fd, struct termios *s) {
     40   return ioctl(fd, TCGETS, s);
     41 }
     42 
     43 static __inline int tcsetattr(int fd, int __opt, const struct termios *s) {
     44   return ioctl(fd, __opt, (void *)s);
     45 }
     46 
     47 static __inline int tcflow(int fd, int action) {
     48   return ioctl(fd, TCXONC, (void *)(intptr_t)action);
     49 }
     50 
     51 static __inline int tcflush(int fd, int __queue) {
     52   return ioctl(fd, TCFLSH, (void *)(intptr_t)__queue);
     53 }
     54 
     55 static __inline pid_t tcgetsid(int fd) {
     56   pid_t _pid;
     57   return ioctl(fd, TIOCGSID, &_pid) ? (pid_t)-1 : _pid;
     58 }
     59 
     60 static __inline int tcsendbreak(int fd, int __duration) {
     61   return ioctl(fd, TCSBRKP, (void *)(uintptr_t)__duration);
     62 }
     63 
     64 static __inline speed_t cfgetospeed(const struct termios *s) {
     65   return (speed_t)(s->c_cflag & CBAUD);
     66 }
     67 
     68 static __inline int cfsetospeed(struct termios *s, speed_t speed) {
     69   s->c_cflag = (s->c_cflag & ~CBAUD) | (speed & CBAUD);
     70   return 0;
     71 }
     72 
     73 static __inline speed_t cfgetispeed(const struct termios *s) {
     74   return (speed_t)(s->c_cflag & CBAUD);
     75 }
     76 
     77 static __inline int cfsetispeed(struct termios *s, speed_t speed) {
     78   s->c_cflag = (s->c_cflag & ~CBAUD) | (speed & CBAUD);
     79   return 0;
     80 }
     81 
     82 static __inline void cfmakeraw(struct termios *s) {
     83   s->c_iflag &=
     84       ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
     85   s->c_oflag &= ~OPOST;
     86   s->c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
     87   s->c_cflag &= ~(CSIZE | PARENB);
     88   s->c_cflag |= CS8;
     89 }
     90 
     91 __END_DECLS
     92 
     93 #endif /* _ANDROID_LEGACY_TERMIOS_INLINES_H_ */
     94