93 lines
3.4 KiB
C
93 lines
3.4 KiB
C
/*-
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* Copyright (c) 2004 Poul-Henning Kamp
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file contains definitions which pertain to serial ports as such,
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* (both async and sync), but which do not necessarily have anything to
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* do with tty processing.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_SERIAL_H_
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#define _SYS_SERIAL_H_
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/*
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* Indentification of modem control signals. These definitions match
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* the TIOCMGET definitions in <sys/ttycom.h> shifted a bit down, and
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* that identity is enforced with CTASSERT at the bottom of kern/tty.c
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* Both the modem bits and delta bits must fit in 16 bit.
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*/
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#define SER_DTR 0x0001 /* data terminal ready */
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#define SER_RTS 0x0002 /* request to send */
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#define SER_STX 0x0004 /* secondary transmit */
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#define SER_SRX 0x0008 /* secondary receive */
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#define SER_CTS 0x0010 /* clear to send */
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#define SER_DCD 0x0020 /* data carrier detect */
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#define SER_RI 0x0040 /* ring indicate */
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#define SER_DSR 0x0080 /* data set ready */
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#define SER_MASK_STATE 0x00ff
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/* Delta bits, used to indicate which signals should/was affected */
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#define SER_DELTA(x) ((x) << 8)
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#define SER_DDTR SER_DELTA(SER_DTR)
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#define SER_DRTS SER_DELTA(SER_RTS)
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#define SER_DSTX SER_DELTA(SER_STX)
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#define SER_DSRX SER_DELTA(SER_SRX)
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#define SER_DCTS SER_DELTA(SER_CTS)
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#define SER_DDCD SER_DELTA(SER_DCD)
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#define SER_DRI SER_DELTA(SER_RI)
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#define SER_DDSR SER_DELTA(SER_DSR)
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#define SER_MASK_DELTA SER_DELTA(SER_MASK_STATE)
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#ifdef _KERNEL
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/*
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* Specification of interrupt sources typical for serial ports. These are
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* useful when some umbrella driver like scc(4) has enough knowledge of
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* the hardware to obtain the set of pending interrupts but does not itself
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* handle the interrupt. Each interrupt source can be given an interrupt
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* resource for which inferior drivers can install handlers. The lower 16
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* bits are kept free for the signals above.
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*/
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#define SER_INT_OVERRUN 0x010000
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#define SER_INT_BREAK 0x020000
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#define SER_INT_RXREADY 0x040000
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#define SER_INT_SIGCHG 0x080000
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#define SER_INT_TXIDLE 0x100000
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#define SER_INT_MASK 0xff0000
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#define SER_INT_SIGMASK (SER_MASK_DELTA | SER_MASK_STATE)
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#ifndef LOCORE
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typedef int serdev_intr_t(void*);
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#endif
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#endif /* _KERNEL */
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#endif /* !_SYS_SERIAL_H_ */
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