341 lines
15 KiB
C
341 lines
15 KiB
C
/****************************************************************************
|
|
* include/termios.h
|
|
*
|
|
* Copyright (C) 2011-2012 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_TERMIOS_H
|
|
#define __INCLUDE_TERMIOS_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
#include <sys/types.h>
|
|
#include <stdint.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/* Terminal input modes (c_iflag in the termios structure) */
|
|
|
|
#define BRKINT (1 << 0) /* Bit 0: Signal interrupt on break */
|
|
#define ICRNL (1 << 1) /* Bit 1: Map CR to NL on input */
|
|
#define IGNBRK (1 << 2) /* Bit 2: Ignore break condition */
|
|
#define IGNCR (1 << 3) /* Bit 3: Ignore CR */
|
|
#define IGNPAR (1 << 4) /* Bit 4: Ignore characters with parity errors */
|
|
#define INLCR (1 << 5) /* Bit 5: Map NL to CR on input */
|
|
#define INPCK (1 << 6) /* Bit 6: Enable input parity check */
|
|
#define ISTRIP (1 << 7) /* Bit 7: Strip character */
|
|
#define IUCLC (1 << 8) /* Bit 8: Map upper-case to lower-case on input
|
|
* (LEGACY) */
|
|
#define IXANY (1 << 9) /* Bit 9: Enable any character to restart output */
|
|
#define IXOFF (1 << 10) /* Bit 10: Enable start/stop input control */
|
|
#define IXON (1 << 11) /* Bit 11: Enable start/stop output control */
|
|
#define PARMRK (1 << 12) /* Bit 12: Mark parity errors */
|
|
|
|
/* Terminal output modes (c_oflag in the termios structure) */
|
|
|
|
#define OPOST (1 << 0) /* Bit 0: Post-process output */
|
|
#define OLCUC (1 << 1) /* Bit 1: Map lower-case to upper-case on
|
|
* * output (LEGACY) */
|
|
#define ONLCR (1 << 2) /* Bit 2: Map NL to CR-NL on output */
|
|
#define OCRNL (1 << 3) /* Bit 3: Map CR to NL on output */
|
|
#define ONOCR (1 << 4) /* Bit 4: No CR output at column 0 */
|
|
#define ONLRET (1 << 5) /* Bit 5: NL performs CR function */
|
|
#define OFILL (1 << 6) /* Bit 6: Use fill characters for delay */
|
|
#define NLDLY (1 << 7) /* Bit 7: Select newline delays: */
|
|
# define NL0 (0 << 7) /* Newline character type 0 */
|
|
# define NL1 (1 << 7) /* Newline character type 1 */
|
|
#define CRDLY (3 << 8) /* Bits 8-9: Select carriage-return delays: */
|
|
# define CR0 (0 << 8) /* Carriage-return delay type 0 */
|
|
# define CR1 (1 << 8) /* Carriage-return delay type 1 */
|
|
# define CR2 (2 << 8) /* Carriage-return delay type 2 */
|
|
# define CR3 (3 << 8) /* Carriage-return delay type 3 */
|
|
#define TABDLY (3 << 10) /* Bit 10-11: Select horizontal-tab delays: */
|
|
# define TAB0 (0 << 10) /* Horizontal-tab delay type 0 */
|
|
# define TAB1 (1 << 10) /* Horizontal-tab delay type 1 */
|
|
# define TAB2 (2 << 10) /* Horizontal-tab delay type 2 */
|
|
# define TAB3 (3 << 10) /* Expand tabs to spaces */
|
|
#define BSDLY (1 << 12) /* Bit 12: Select backspace delays: */
|
|
# define BS0 (0 << 12) /* Backspace-delay type 0 */
|
|
# define BS1 (1 << 12) /* Backspace-delay type 1 */
|
|
#define VTDLY (1 << 13) /* Bit 13: Select vertical-tab delays: */
|
|
# define VT0 (0 << 13) /* Vertical-tab delay type 0 */
|
|
# define VT1 (1 << 13) /* Vertical-tab delay type 1 */
|
|
#define FFDLY (1 << 14) /* Bit 14: Select form-feed delays: */
|
|
# define FF0 (0 << 14) /* Form-feed delay type 0 */
|
|
# define FF1 (1 << 14) /* Form-feed delay type 1 */
|
|
|
|
/* Control Modes (c_cflag in the termios structure) */
|
|
|
|
#define CSIZE (3 << 0) /* Bits 0-1: Character size: */
|
|
# define CS5 (0 << 0) /* 5 bits */
|
|
# define CS6 (1 << 0) /* 6 bits */
|
|
# define CS7 (2 << 0) /* 7 bits */
|
|
# define CS8 (3 << 0) /* 8 bits */
|
|
#define CSTOPB (1 << 2) /* Bit 2: Send two stop bits, else one */
|
|
#define CREAD (1 << 3) /* Bit 3: Enable receiver */
|
|
#define PARENB (1 << 4) /* Bit 4: Parity enable */
|
|
#define PARODD (1 << 5) /* Bit 5: Odd parity, else even */
|
|
#define HUPCL (1 << 6) /* Bit 6: Hang up on last close */
|
|
#define CLOCAL (1 << 7) /* Bit 7: Ignore modem status lines */
|
|
#define CCTS_OFLOW (1 << 8) /* Bit 8: CTS flow control of output */
|
|
#define CRTS_IFLOW (1 << 9) /* Bit 9: RTS flow control of input */
|
|
#define CRTSCTS (CRTS_IFLOW | CCTS_OFLOW)
|
|
|
|
/* Local Modes (c_lflag in the termios structure) */
|
|
|
|
#define ECHO (1 << 0) /* Bit 0: Enable echo */
|
|
#define ECHOE (1 << 1) /* Bit 1: Echo erase character as error-
|
|
* correcting backspace */
|
|
#define ECHOK (1 << 2) /* Bit 2: Echo KILL */
|
|
#define ECHONL (1 << 3) /* Bit 3: Echo NL */
|
|
#define ICANON (1 << 4) /* Bit 4: Canonical input (erase and kill
|
|
* processing) */
|
|
#define IEXTEN (1 << 5) /* Bit 5: Enable extended input character
|
|
* processing */
|
|
#define ISIG (1 << 6) /* Bit 6: Enable signals */
|
|
#define NOFLSH (1 << 7) /* Bit 7: Disable flush after interrupt or quit */
|
|
#define TOSTOP (1 << 8) /* Bit 8: Send SIGTTOU for background output */
|
|
#define XCASE (1 << 9) /* Bit 9: Canonical upper/lower presentation
|
|
* (LEGACY) */
|
|
|
|
/* The following are subscript names for the termios c_cc array.
|
|
*
|
|
* Common characters: VINTR, VQUIT, VSTART, VSTOP, VSUSP
|
|
*
|
|
* VINTR: Interrupt character (Default ETX, Control-C)
|
|
* VQUIT: Quit character (Default FS, Control-\)
|
|
* VSTART: Start character (Default DC1, Control-Q)
|
|
* VSTOP: Stop character (Default DC3, Control-S)
|
|
* VSUSP: Suspend character (Default SUB, Control-Z)
|
|
*
|
|
* Canonical mode: Adds VEOF, VEOL, VERASE, VKILL
|
|
*
|
|
* VEOL: End-of-file character (Default SUB, Control-Z)
|
|
* VEOF: End-of-line character (Default NUL)
|
|
* VERASE: Erase character (Default DEL or BS, Control-H)
|
|
* VKILL: Kill character (Default NAK or BS, Control-U)
|
|
*
|
|
* Non-canonical mode: Adds VMIN, VTIME
|
|
*
|
|
* VMIN: Minimum number of characters for non-canonical read
|
|
* VTIME: Timeout in deciseconds for non-canonical read
|
|
*/
|
|
|
|
#define VEOF 0 /* Bit 0: EOF character (canonical mode) */
|
|
#define VMIN VEOF /* Bit 0: MIN value (non-canonical mode) */
|
|
#define VEOL 1 /* Bit 1: EOL character (canonical mode) */
|
|
#define VTIME VEOL /* Bit 1: TIME value (non-canonical mode) */
|
|
#define VERASE 2 /* Bit 2: ERASE character (canonical mode) */
|
|
#define VINTR 3 /* Bit 3: INTR character */
|
|
#define VKILL 4 /* Bit 4: KILL character (canonical mode) */
|
|
#define VQUIT 5 /* Bit 5: QUIT character */
|
|
#define VSTART 6 /* Bit 6: START character */
|
|
#define VSTOP 7 /* Bit 7: STOP character */
|
|
#define VSUSP 8 /* Bit 8: SUSP character */
|
|
#define NCCS 9 /* Bit 9: Size of the array c_cc for control
|
|
* characters */
|
|
|
|
/* Baud Rate Selection. These are instances of type speed_t. Values of
|
|
* 38400 and below are specified by POSIX; values above 38400 are sometimes
|
|
* referred to as extended values and most values appear in most termios.h
|
|
* implementations.
|
|
*
|
|
* NOTE that is NuttX that the encoding of the speed_t values is simply the
|
|
* value of the baud itself. So this opens a window for non-portable abuse
|
|
* of the speed-related interfaces: The defined values should be used where-
|
|
* ever possible for reasons of portability.
|
|
*/
|
|
|
|
#define B0 0 /* Hang up */
|
|
#define B50 50 /* 50 baud */
|
|
#define B75 75 /* 75 baud */
|
|
#define B110 110 /* 110 baud */
|
|
#define B134 134 /* 134.5 baud */
|
|
#define B150 150 /* 150 baud */
|
|
#define B200 200 /* 200 baud */
|
|
#define B300 300 /* 300 baud */
|
|
#define B600 600 /* 600 baud */
|
|
#define B1200 1200 /* 1,200 baud */
|
|
#define B1800 1800 /* 1,800 baud */
|
|
#define B2400 2400 /* 2,400 baud */
|
|
#define B4800 4800 /* 4,800 baud */
|
|
#define B9600 9600 /* 9,600 baud */
|
|
#define B19200 19200 /* 19,200 baud */
|
|
#define B38400 38400 /* 38,400 baud */
|
|
|
|
#define B57600 57600 /* 57,600 baud */
|
|
#define B115200 115200 /* 115,200 baud */
|
|
#define B128000 128000 /* 128,000 baud */
|
|
#define B230400 230400 /* 230,400 baud */
|
|
#define B256000 256000 /* 256,000 baud */
|
|
#define B460800 460800 /* 460,800 baud */
|
|
#define B500000 500000 /* 500,000 baud */
|
|
#define B576000 576000 /* 576,000 baud */
|
|
#define B921600 921600 /* 921,600 baud */
|
|
#define B1000000 1000000 /* 1,000,000 baud */
|
|
#define B1152000 1152000 /* 1,152,000 baud */
|
|
#define B1500000 1500000 /* 1,500,000 baud */
|
|
#define B2000000 2000000 /* 2,000,000 baud */
|
|
#define B2500000 2500000 /* 2,500,000 baud */
|
|
#define B3000000 3000000 /* 3,000,000 baud */
|
|
|
|
/* Attribute Selection (used with tcsetattr()) */
|
|
|
|
#define TCSANOW 0 /* Change attributes immediately */
|
|
#define TCSADRAIN 1 /* Change attributes when output has drained */
|
|
#define TCSAFLUSH 2 /* Change attributes when output has drained;
|
|
* also flush pending input */
|
|
|
|
/* Line Control (used with tcflush()) */
|
|
|
|
#define TCIFLUSH 0 /* Flush pending input */
|
|
#define TCIOFLUSH 1 /* Flush both pending input and untransmitted
|
|
* output */
|
|
#define TCOFLUSH 2 /* Flush untransmitted output */
|
|
|
|
/* Constants for use with tcflow() */
|
|
|
|
#define TCIOFF 0 /* Transmit a STOP character, intended to
|
|
* suspend input data */
|
|
#define TCION 1 /* Transmit a START character, intended to
|
|
* restart input data */
|
|
#define TCOOFF 2 /* Suspend output */
|
|
#define TCOON 3 /* Restart output */
|
|
|
|
/****************************************************************************
|
|
* Public Type Definitions
|
|
****************************************************************************/
|
|
|
|
/* Baud rate selection */
|
|
|
|
typedef uint32_t speed_t; /* Used for terminal baud rates */
|
|
|
|
/* Types used within the termios structure */
|
|
|
|
typedef uint16_t tcflag_t; /* Used for terminal modes */
|
|
typedef int cc_t; /* Used for terminal special characters */
|
|
|
|
/* The termios structure */
|
|
|
|
struct termios
|
|
{
|
|
/* Exposed fields defined by POSIX */
|
|
|
|
tcflag_t c_iflag; /* Input modes */
|
|
tcflag_t c_oflag; /* Output modes */
|
|
tcflag_t c_cflag; /* Control modes */
|
|
tcflag_t c_lflag; /* Local modes */
|
|
cc_t c_cc[NCCS]; /* Control chars */
|
|
|
|
/* Implementation specific fields. For portability reasons, these fields
|
|
* should not be accessed directly, but rather through only through the
|
|
* cf[set|get][o|i]speed() POSIX interfaces.
|
|
*/
|
|
|
|
speed_t c_speed; /* Input/output speed (non-POSIX)*/
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
#ifdef __cplusplus
|
|
#define EXTERN extern "C"
|
|
extern "C"
|
|
{
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
/* The cfgetspeed() function is a non-POSIX function will extract the baud
|
|
* from the termios structure to which the termiosp argument points. NuttX
|
|
* does not control input/output baud independently. Both must be the same.
|
|
* The POSIX standard interfaces, cfigetispeed() and cfigetospeed() are
|
|
* supported by simply defining them to be cfgetspeed().
|
|
*/
|
|
|
|
speed_t cfgetspeed(FAR const struct termios *termiosp);
|
|
#define cfgetispeed(termiosp) cfgetspeed(termiosp)
|
|
#define cfgetospeed(termiosp) cfgetspeed(termiosp)
|
|
|
|
/* The cfsetspeed() function is a non-POSIX function that sets the baud
|
|
* stored in the structure pointed to by termiosp to speed. NuttX does
|
|
* not control input/output baud independently. Both must be the same.
|
|
* The POSIX standard interfaces, cfigetispeed() and cfigetospeed() are
|
|
* supported by simply defining them to be cfsetspeed().
|
|
*/
|
|
|
|
int cfsetspeed(FAR struct termios *termiosp, speed_t speed);
|
|
#define cfsetispeed(termiosp,speed) cfsetspeed(termiosp,speed)
|
|
#define cfsetospeed(termiosp,speed) cfsetspeed(termiosp,speed)
|
|
|
|
/* Wait for transmission of output */
|
|
|
|
int tcdrain(int fd);
|
|
|
|
/* Suspend or restart the transmission or reception of data */
|
|
|
|
int tcflow(int fd, int action);
|
|
|
|
/* Flush non-transmitted output data, non-read input data or both */
|
|
|
|
int tcflush(int fd, int cmd);
|
|
|
|
/* Get the parameters associated with the terminal */
|
|
|
|
int tcgetattr(int fd, FAR struct termios *termiosp);
|
|
|
|
/* Get process group ID for session leader for controlling terminal */
|
|
|
|
pid_t tcgetsid(int fd);
|
|
|
|
/* Send a "break" for a specific duration */
|
|
|
|
int tcsendbreak(int fd, int duration);
|
|
|
|
/* Set the parameters associated with the terminal */
|
|
|
|
int tcsetattr(int fd, int options, FAR const struct termios *termiosp);
|
|
|
|
|
|
#undef EXTERN
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __INCLUDE_TERMIOS_H */
|