diff options
author | phk <phk@FreeBSD.org> | 2004-06-24 10:05:58 +0000 |
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committer | phk <phk@FreeBSD.org> | 2004-06-24 10:05:58 +0000 |
commit | 4972a55ba2d80d24a12bae08ca6baf93d22f4b28 (patch) | |
tree | 80be8285018c8c4fc98be97d1157a7874dab5596 /sys/sys/serial.h | |
parent | 1cc5f2552d2ce551fabede839e45fd49dbbe69f1 (diff) | |
download | FreeBSD-src-4972a55ba2d80d24a12bae08ca6baf93d22f4b28.zip FreeBSD-src-4972a55ba2d80d24a12bae08ca6baf93d22f4b28.tar.gz |
Add a tty-independent include file for definitions pertaining to serial
ports.
Define the most commonly used modem signals, and delta-bit definitions
for them.
Diffstat (limited to 'sys/sys/serial.h')
-rw-r--r-- | sys/sys/serial.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/sys/sys/serial.h b/sys/sys/serial.h new file mode 100644 index 0000000..2e1411b --- /dev/null +++ b/sys/sys/serial.h @@ -0,0 +1,62 @@ +/*- + * 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_ */ |