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Add a tty-independent include file for definitions pertaining to serial

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ports.

Define the most commonly used modem signals, and delta-bit definitions
for them.
This commit is contained in:
Poul-Henning Kamp 2004-06-24 10:05:58 +00:00
parent 09fb7dbad4
commit c56bdd05fa
1 changed files with 62 additions and 0 deletions
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sys/sys/serial.h Normal file
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/*-
* Copyright (c) 2004 Poul-Henning Kamp
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* This file contains definitions which pertain to serial ports as such,
* (both async and sync), but which do not necessarily have anything to
* do with tty processing.
*
* $FreeBSD$
*/
#ifndef _SYS_SERIAL_H_
#define _SYS_SERIAL_H_
/*
* Indentification of modem control signals. These definitions match
* the TIOCMGET definitions in <sys/ttycom.h> shifted a bit down, and
* that identity is enforced with CTASSERT at the bottom of kern/tty.c
* Both the modem bits and delta bits must fit in 16 bit!
*/
#define SER_DTR 0x0001 /* data terminal ready */
#define SER_RTS 0x0002 /* request to send */
#define SER_STX 0x0004 /* secondary transmit */
#define SER_SRX 0x0008 /* secondary receive */
#define SER_CTS 0x0010 /* clear to send */
#define SER_DCD 0x0020 /* data carrier detect */
#define SER_RI 0x0040 /* ring indicate */
#define SER_DSR 0x0080 /* data set ready */
/* Delta bits, used to indicate which signals should/was affected */
#define SER_DDTR (SER_DTR << 8)
#define SER_DRTS (SER_RTS << 8)
#define SER_DSTX (SER_STX << 8)
#define SER_DSRX (SER_SRX << 8)
#define SER_DCTS (SER_CTS << 8)
#define SER_DDCD (SER_DCD << 8)
#define SER_DRI (SER_RI << 8)
#define SER_DDSR (SER_DSR << 8)
#endif /* !_SYS_SERIAL_H_ */