xref: /dflybsd-src/etc/rc.d/serial (revision ce0833857e05eba4d13f3fd8a4d049ea68c5ffa4)

#!/bin/sh
#
# Copyright (c) 1996  Andrey A. Chernov
# 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.
#
# $FreeBSD: src/etc/rc.d/serial,v 1.20 2003/05/05 03:26:50 bde Exp $
#

# PROVIDE: serial
# REQUIRE: FILESYSTEMS
# BEFORE:  NETWORKING

. /etc/rc.subr
dummy_rc_command "$1"

# Change some defaults for serial devices.
# Standard defaults are:
#	dtrwait 300 drainwait `sysctl -n kern.drainwait`
#	initial cflag from <sys/ttydefaults.h> = cread cs8 hupcl
#	initial iflag, lflag and oflag all 0
#	speed 115200
#	special chars from <sys/ttydefaults.h>
#	nothing locked
# except for serial consoles the initial iflag, lflag and oflag are from
# <sys/ttydefaults.h> and clocal is locked on.

default() {
	# Reset everything changed by the other functions to initial defaults.

	ci=$1; shift	# call in device identifier
	co=$1; shift	# call out device identifier
	drainwait=`${SYSCTL_N} kern.drainwait`

	for i in $*
	do
		comcontrol /dev/tty${ci}${i} dtrwait 300 drainwait $drainwait
		stty < /dev/ttyi${ci}${i} -clocal crtscts hupcl 115200 reprint ^R
		stty < /dev/ttyl${ci}${i} -clocal -crtscts -hupcl 0
		stty < /dev/cuai${co}${i} -clocal crtscts hupcl 115200 reprint ^R
		stty < /dev/cual${co}${i} -clocal -crtscts -hupcl 0
	done
}

maybe() {
	# Special settings.

	ci=$1; shift
	co=$1; shift

	for i in $*
	do
		# Don't use ^R; it breaks bash's ^R when typed ahead.
		stty < /dev/ttyi${ci}${i} reprint undef
		stty < /dev/cuai${co}${i} reprint undef
		# Lock clocal off on dialin device for security.
		stty < /dev/ttyl${ci}${i} clocal
		# Lock the speeds to use old binaries that don't support them.
		# Any legal speed works to lock the initial speed.
		stty < /dev/ttyl${ci}${i} 300
		stty < /dev/cual${co}${i} 300
	done
}

modem() {
	# Modem that supports CTS and perhaps RTS handshaking.

	ci=$1; shift
	co=$1; shift

	for i in $*
	do
		# may depend on modem
		comcontrol /dev/tty${ci}${i} dtrwait 100 drainwait 180
		# Lock crtscts on.
		# Speed reasonable for V42bis.
		stty < /dev/ttyi${ci}${i} crtscts 115200
		stty < /dev/ttyl${ci}${i} crtscts
		stty < /dev/cuai${co}${i} crtscts 115200
		stty < /dev/cual${co}${i} crtscts
	done
}

mouse() {
	# Mouse on either callin or callout port.

	ci=$1; shift
	co=$1; shift

	for i in $*
	do
		# Lock clocal on, hupcl off.
		# Standard speed for Microsoft mouse.
		stty < /dev/ttyi${ci}${i} clocal -hupcl 1200
		stty < /dev/ttyl${ci}${i} clocal  hupcl
		stty < /dev/cuai${co}${i} clocal -hupcl 1200
		stty < /dev/cual${co}${i} clocal  hupcl
	done
}

terminal() {
	# Terminal that supports CTS and perhaps RTS handshaking
	# with the cable or terminal arranged so that DCD is on
	# at least while the terminal is on.
	# Also works for bidirectional communications to another pc
	# provided at most one side runs getty.
	# Same as modem() except we want a faster speed and no dtrwait.

	ci=$1; shift
	co=$1; shift

	modem ${ci} ${co} $*
	for i in $*
	do
		comcontrol /dev/tty${ci}${i} dtrwait 0
		stty < /dev/ttyi${ci}${i} 115200
		stty < /dev/cuai${co}${i} 115200
	done
}

# Don't use anything from this file unless you have some buggy programs
# that require it.

# Edit the functions and the examples to suit your system.
# $1 is the call in device identifier, $2 is the call out device identifier
# and the remainder of the line lists the device numbers.

# Initialize assorted 8250-16550 (sio) ports.
# maybe    d a  0 1 2 3 4 5 6 7 8 9 a b c d e f g h i j k l m n o p q r s t u v
# mouse    d a      2
# modem    d a    1
# terminal d a  0

# Initialize all ports on a Cyclades-8yo.
# modem    c c  00 01 02 03 04 05 06 07

# Initialize all ports on a Cyclades-16ye.
# modem    c c  00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f

# Initialize all ports on a Digiboard 8.
# modem    D D  00 01 02 03 04 05 06 07