237 lines
10 KiB
C
237 lines
10 KiB
C
/****************************************************************************
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* include/termios.h
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_TERMIOS_H
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#define __INCLUDE_TERMIOS_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/* Terminal input modes (c_iflag in the termios structure) */
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#define BRKINT (1 << 0) /* Signal interrupt on break */
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#define ICRNL (1 << 1) /* Map CR to NL on input */
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#define IGNBRK (1 << 2) /* Ignore break condition */
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#define IGNCR (1 << 3) /* Ignore CR */
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#define IGNPAR (1 << 4) /* Ignore characters with parity errors */
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#define INLCR (1 << 5) /* Map NL to CR on input */
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#define INPCK (1 << 6) /* Enable input parity check */
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#define ISTRIP (1 << 7) /* Strip character */
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#define IUCLC (1 << 8) /* Map upper-case to lower-case on input (LEGACY) */
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#define IXANY (1 << 9) /* Enable any character to restart output */
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#define IXOFF (1 << 10) /* Enable start/stop input control */
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#define IXON (1 << 11) /* Enable start/stop output control */
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#define PARMRK (1 << 12) /* Mark parity errors */
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/* Terminal output modes (c_oflag in the termios structure) */
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#define OPOST (1 << 0) /* Post-process output */
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#define OLCUC (1 << 1) /* Map lower-case to upper-case on output (LEGACY) */
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#define ONLCR (1 << 2) /* Map NL to CR-NL on output */
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#define OCRNL (1 << 3) /* Map CR to NL on output */
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#define ONOCR (1 << 4) /* No CR output at column 0 */
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#define ONLRET (1 << 5) /* NL performs CR function */
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#define OFILL (1 << 6) /* Use fill characters for delay */
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#define NLDLY (1 << 7) /* Select newline delays: */
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# define NL0 (0 << 7) /* Newline character type 0 */
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# define NL1 (1 << 7) /* Newline character type 1 */
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#define CRDLY (3 << 8) /* Select carriage-return delays: */
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# define CR0 (0 << 8) /* Carriage-return delay type 0 */
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# define CR1 (1 << 8) /* Carriage-return delay type 1 */
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# define CR2 (2 << 8) /* Carriage-return delay type 2 */
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# define CR3 (3 << 8) /* Carriage-return delay type 3 */
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#define TABDLY (3 << 10) /* Select horizontal-tab delays: */
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# define TAB0 (0 << 10) /* Horizontal-tab delay type 0 */
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# define TAB1 (1 << 10) /* Horizontal-tab delay type 1 */
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# define TAB2 (2 << 10) /* Horizontal-tab delay type 2 */
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# define TAB3 (3 << 10) /* Expand tabs to spaces */
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#define BSDLY (1 << 12) /* Select backspace delays: */
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# define BS0 (0 << 12) /* Backspace-delay type 0 */
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# define BS1 (1 << 12) /* Backspace-delay type 1 */
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#define VTDLY (1 << 13) /* Select vertical-tab delays: */
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# define VT0 (0 << 13) /* Vertical-tab delay type 0 */
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# define VT1 (1 << 13) /* Vertical-tab delay type 1 */
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#define FFDLY (1 << 14) /* Select form-feed delays: */
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# define FF0 (0 << 14) /* Form-feed delay type 0 */
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# define FF1 (1 << 14) /* Form-feed delay type 1 */
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/* Control Modes (c_cflag in the termios structure) */
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#define CSIZE (3 << 0) /* Character size: */
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# define CS5 (0 << 0) /* 5 bits */
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# define CS6 (1 << 0) /* 6 bits */
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# define CS7 (2 << 0) /* 7 bits */
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# define CS8 (3 << 0) /* 8 bits */
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#define CSTOPB (1 << 2) /* Send two stop bits, else one */
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#define CREAD (1 << 3) /* Enable receiver */
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#define PARENB (1 << 4) /* Parity enable */
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#define PARODD (1 << 5) /* Odd parity, else even */
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#define HUPCL (1 << 6) /* Hang up on last close */
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#define CLOCAL (1 << 7) /* Ignore modem status lines */
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/* Local Modes (c_lflag in the termios structure) */
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#define ECHO (1 << 0) /* Enable echo */
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#define ECHOE (1 << 1) /* Echo erase character as error-correcting backspace */
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#define ECHOK (1 << 2) /* Echo KILL */
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#define ECHONL (1 << 3) /* Echo NL */
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#define ICANON (1 << 4) /* Canonical input (erase and kill processing) */
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#define IEXTEN (1 << 5) /* Enable extended input character processing */
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#define ISIG (1 << 6) /* Enable signals */
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#define NOFLSH (1 << 7) /* Disable flush after interrupt or quit */
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#define TOSTOP (1 << 8) /* Send SIGTTOU for background output */
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#define XCASE (1 << 9) /* Canonical upper/lower presentation (LEGACY) */
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/* The following are subscript names for the termios c_cc array */
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#define VEOF 0 /* EOF character (canonical mode) */
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#define VMIN VEOF /* MIN value (Non-canonical mode) */
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#define VEOL 1 /* EOL character (canonical mode) */
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#define VTIME VEOL /* TIME value (Non-canonical mode) */
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#define VERASE 2 /* ERASE character (canonical mode) */
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#define VINTR 3 /* INTR character */
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#define VKILL 4 /* KILL character (canonical mode) */
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#define VQUIT 5 /* QUIT character */
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#define VSTART 6 /* START character */
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#define VSTOP 7 /* STOP character */
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#define VSUSP 8 /* SUSP character */
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#define NCCS 9 /* Size of the array c_cc for control characters */
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/* Baud Rate Selection (objects of type speed_t) */
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#define B0 0 /* Hang up */
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#define B50 1 /* 50 baud */
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#define B75 2 /* 75 baud */
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#define B110 3 /* 110 baud */
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#define B134 4 /* 134.5 baud */
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#define B150 5 /* 150 baud */
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#define B200 6 /* 200 baud */
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#define B300 7 /* 300 baud */
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#define B600 8 /* 600 baud */
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#define B1200 9 /* 1,200 baud */
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#define B1800 10 /* 1,800 baud */
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#define B2400 11 /* 2,400 baud */
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#define B4800 12 /* 4,800 baud */
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#define B9600 13 /* 9,600 baud */
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#define B19200 14 /* 19,200 baud */
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#define B38400 15 /* 38,400 baud */
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#define B57600 16 /* 57,600 baud */
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#define B115200 17 /* 115,200 baud */
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#define B230400 18 /* 230,400 baud */
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#define B460800 19 /* 460,800 baud */
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#define B921600 20 /* 921,600 baud */
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/* Attribute Selection (used with tcsetattr()) */
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#define TCSANOW 0 /* Change attributes immediately */
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#define TCSADRAIN 1 /* Change attributes when output has drained */
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#define TCSAFLUSH 2 /* Change attributes when output has drained; also flush pending input */
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/* Line Control (used with tcflush()) */
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#define TCIFLUSH 0 /* Flush pending input. Flush untransmitted output */
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#define TCIOFLUSH 1 /* Flush both pending input and untransmitted output */
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#define TCOFLUSH 2 /* Flush untransmitted output */
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/* Constants for use with tcflow() */
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#define TCIOFF 0 /* Transmit a STOP character, intended to suspend input data */
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#define TCION 1 /* Transmit a START character, intended to restart input data */
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#define TCOOFF 2 /* Suspend output */
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#define TCOON 3 /* Restart output */
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/****************************************************************************
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* Public Type Definitions
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****************************************************************************/
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/* Baud rate selection */
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typedef uint8_t speed_t; /* Used for terminal baud rates */
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/* Types used within the termios structure */
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typedef uint16_t tcflag_t; /* Used for terminal modes */
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typedef int cc_t; /* Used for terminal special characters */
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/* The termios structure */
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struct termios
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{
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tcflag_t c_iflag /* Input modes */
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tcflag_t c_oflag /* Output modes */
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tcflag_t c_cflag /* Control modes */
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tcflag_t c_lflag /* Local modes */
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cc_t c_cc[NCCS] /* Control chars */
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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EXTERN speed_t cfgetispeed(const struct termios *);
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EXTERN speed_t cfgetospeed(const struct termios *);
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EXTERN int cfsetispeed(struct termios *, speed_t);
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EXTERN int cfsetospeed(struct termios *, speed_t);
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EXTERN int tcdrain(int);
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EXTERN int tcflow(int, int);
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EXTERN int tcflush(int, int);
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EXTERN int tcgetattr(int, struct termios *);
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EXTERN pid_t tcgetsid(int);
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EXTERN int tcsendbreak(int, int);
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EXTERN int tcsetattr(int, int, struct termios *);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCLUDE_TERMIOS_H */
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