FreeBSD/Linux Kernel Cross Reference
sys/sys/serial.h
1 /*-
2 * Copyright (c) 2004 Poul-Henning Kamp
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * This file contains definitions which pertain to serial ports as such,
27 * (both async and sync), but which do not necessarily have anything to
28 * do with tty processing.
29 *
30 * $FreeBSD$
31 */
32
33 #ifndef _SYS_SERIAL_H_
34 #define _SYS_SERIAL_H_
35
36
37 /*
38 * Indentification of modem control signals. These definitions match
39 * the TIOCMGET definitions in <sys/ttycom.h> shifted a bit down, and
40 * that identity is enforced with CTASSERT at the bottom of kern/tty.c
41 * Both the modem bits and delta bits must fit in 16 bit.
42 */
43 #define SER_DTR 0x0001 /* data terminal ready */
44 #define SER_RTS 0x0002 /* request to send */
45 #define SER_STX 0x0004 /* secondary transmit */
46 #define SER_SRX 0x0008 /* secondary receive */
47 #define SER_CTS 0x0010 /* clear to send */
48 #define SER_DCD 0x0020 /* data carrier detect */
49 #define SER_RI 0x0040 /* ring indicate */
50 #define SER_DSR 0x0080 /* data set ready */
51
52 /* Delta bits, used to indicate which signals should/was affected */
53 #define SER_DELTA(x) ((x) << 8)
54
55 #define SER_DDTR SER_DELTA(SER_DTR)
56 #define SER_DRTS SER_DELTA(SER_RTS)
57 #define SER_DSTX SER_DELTA(SER_STX)
58 #define SER_DSRX SER_DELTA(SER_SRX)
59 #define SER_DCTS SER_DELTA(SER_CTS)
60 #define SER_DDCD SER_DELTA(SER_DCD)
61 #define SER_DRI SER_DELTA(SER_RI)
62 #define SER_DDSR SER_DELTA(SER_DSR)
63
64 #endif /* !_SYS_SERIAL_H_ */
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