The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/serial.h

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    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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