diff options
author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-07-22 17:01:25 +0000 |
---|---|---|
committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-07-22 17:01:25 +0000 |
commit | 107fe46fc6359ec1b5169c960fa8bd4fc619b23b (patch) | |
tree | c354a0def4a0d161c44db903e32314b76d88f901 /nuttx/include/sys | |
parent | 4b91bbe4ddedd7090ccbe8a93b9f5075de7bdd6a (diff) | |
download | px4-nuttx-107fe46fc6359ec1b5169c960fa8bd4fc619b23b.tar.gz px4-nuttx-107fe46fc6359ec1b5169c960fa8bd4fc619b23b.tar.bz2 px4-nuttx-107fe46fc6359ec1b5169c960fa8bd4fc619b23b.zip |
Add support for extended BAUD settings
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4967 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/include/sys')
-rw-r--r-- | nuttx/include/sys/str_tty.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/nuttx/include/sys/str_tty.h b/nuttx/include/sys/str_tty.h new file mode 100644 index 000000000..2ae17ef95 --- /dev/null +++ b/nuttx/include/sys/str_tty.h @@ -0,0 +1,100 @@ +/**************************************************************************** + * include/sys/str_tty.h + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * 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. + * + ****************************************************************************/ + +#ifndef __INCLUDE_SYS_STR_TTY_H +#define __INCLUDE_SYS_STR_TTY_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <stdint.h> + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Type Definitions + ****************************************************************************/ + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#undef EXTERN +#if defined(__cplusplus) +#define EXTERN extern "C" +extern "C" { +#else +#define EXTERN extern +#endif + +/* These are non-standard AIX-like interfaces to simplify TTY baud rate + * operations. + * + * The baud rate functions set_speed() and get_speed() are provided to + * allow the applications to program any value of the baud rate that is + * supported by the serial driver, but that cannot be expressed using + * the termios subroutines cfsetospeed, cfsetispeed, cfgetospeed, + * and cfsgetispeed. Those subroutines are limited to the set of values + * defined termios.h. + * + * Normal mode: This is the default mode, in which a termios supported + * speed is in use. + * + * Speed-extended mode: This mode is entered by calling set_speed() with + * a non-termios supported speed at the configuration of the line. In this + * mode, all the calls to tcgetattr subroutine or TCGETS ioctl subroutine + * will have B50 in the returned termios structure. + * + * If tcsetattr() or TCSETS, TCSETAF, or TCSETAW ioctl calls the driver + * and attempts to set B50, the actual baud rate is not changed. If it + * attempts to set any other termios-supported speed, will switch back + * to the normal mode and the requested baud rate is set. Calling + * reset_speed subroutine is another way to switch back to the + * normal mode. + */ + +EXTERN int32_t get_speed(int fd); +EXTERN int set_speed(int fd, int32_t speed); +EXTERN int reset_speed(int fd); + +#undef EXTERN +#if defined(__cplusplus) +} +#endif + +#endif /* __INCLUDE_SYS_STR_TTY_H */ |