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-.\"	$OpenBSD: zs.4,v 1.26 2015/11/21 08:04:20 jmc Exp $
-.\"
-.\" Copyright (c) 1998, 2002 The OpenBSD Project
-.\" All rights reserved.
-.\"
-.\"
-.Dd $Mdocdate: November 21 2015 $
-.Dt ZS 4 sparc
-.Os
-.Sh NAME
-.Nm zs ,
-.Nm zstty ,
-.Nm zskbd ,
-.Nm zsms
-.Nd Zilog 8530 (ZSCC) serial communications driver
-.Sh SYNOPSIS
-.Cd "zs0 at mainbus0                      " Pq "sun4c and sun4e"
-.Cd "zs0 at obio0                         " Pq sun4m
-.Cd "zs0 at obio0 addr 0xf1000000 level 12" Pq sun4
-.Cd "zs1 at mainbus0                      " Pq "sun4c and sun4e"
-.Cd "zs1 at obio0                         " Pq sun4m
-.Cd "zs1 at obio0 addr 0xf0000000 level 12" Pq sun4
-.Cd "zs2 at obio0 addr 0xe0000000 level 12" Pq sun4/300
-.Cd "zstty* at zs?"
-.Cd "zskbd* at zs?"
-.Cd "wskbd* at zskbd?"
-.Cd "zsms* at zs?"
-.Cd "wsmouse* at zsms?"
-.Cd "option SUNKBD_LAYOUT=XXX"
-.Cd "option SUNKBD5_LAYOUT=XXX"
-.Sh DESCRIPTION
-The
-.Nm
-is a Zilog 8530 serial interface chip used in
-.Tn Sun
-workstations.
-The Zilog 8530 provides two input/output channels per instance.
-Most
-.Tn Sun
-workstations include two of these interfaces.
-One of the interfaces is hardwired for use by the keyboard and mouse
-attached to the workstation console.
-The
-.Nm zskbd
-devices connect keyboard devices to the generic keyboard driver
-.Nm wskbd .
-The
-.Nm zsms
-devices connect mice to the generic mouse driver
-.Xr wsmouse 4 .
-The remaining additional
-.Nm zs
-interfaces provide RS-423
-and RS-232 serial ports for general purpose use.
-.Pp
-The
-.Nm
-driver supports all of the standard
-.Xr tty 4
-ioctl calls.
-The status of the DTR, RTS, CTS, and DCD signals can be queried with
-TIOCMGET command, but, due to limitations in the hardware,
-only the DTR and RTS signals can be modified with TIOCMSET, TIOCMBIC,
-and TIOCMBIS
-.Xr ioctl 2
-commands.
-.Pp
-The
-.Nm zskbd
-driver supports a number of different key mappings.
-By default, the layout corresponding to the keyboard model
-as probed by the
-.Nm zskbd
-driver will be used.
-A different layout can be chosen either with the kernel options
-.Dq SUNKBD_LAYOUT
-(for type 4 keyboards)
-and
-.Dq SUNKBD5_LAYOUT
-(for type 5 keyboards)
-at compile time or with the utility
-.Xr wsconsctl 8
-(variable:
-.Dq keyboard.encoding )
-at runtime.
-.Pp
-Other mappings can be used if the whole keymap is replaced by means of
-.Xr wsconsctl 8 .
-The built-in mappings are at this time:
-.Pp
-.Bl -tag -width Ds -offset indent -compact
-.It KB_BE
-.Pq be
-Belgium French (type 4 only).
-.It KB_DE
-.Pq de
-German.
-.It KB_DK
-.Pq dk
-Danish.
-.It KB_ES
-.Pq es
-Spanish.
-.It KB_FR
-.Pq fr
-French (type 5 only).
-.It KB_IT
-.Pq it
-Italian.
-.It KB_JP
-.Pq jp
-Japanese (type 5 only).
-.It KB_NL
-.Pq \&nl
-Dutch.
-.It KB_NO
-.Pq no
-Norwegian.
-.It KB_PT
-.Pq pt
-Portuguese.
-.It KB_SF
-.Pq sf
-Swiss French.
-.It KB_SG
-.Pq sg
-Swiss German.
-.It KB_SV
-.Pq sv
-Swedish with
-.Dq dead accents .
-.It KB_UK
-.Pq uk
-British.
-.It KB_US
-.Pq us
-English/US keyboard mapping.
-.El
-.Pp
-The KB_SV mapping can be used in
-the KB_NODEAD
-.Pq .nodead
-variant.
-This switches off the
-.Dq dead accents .
-.Sh FILES
-.Bl -tag -width Pa -compact
-.It Pa /dev/ttya
-.It Pa /dev/ttyb
-.It Pa /dev/cuaa
-.It Pa /dev/cuab
-.El
-.Sh EXAMPLES
-To set a German keyboard layout, use
-.Ic wsconsctl keyboard.encoding=de .
-To set it at kernel build time, add
-the following to the kernel configuration file for a type 4 keyboard:
-.Bd -literal -offset indent
-option SUNKBD_LAYOUT="KB_DE"
-.Ed
-.Pp
-For a type 5 keyboard:
-.Bd -literal -offset indent
-option SUNKBD5_LAYOUT="KB_DE"
-.Ed
-.Sh SEE ALSO
-.Xr ioctl 2 ,
-.Xr intro 4 ,
-.Xr tty 4 ,
-.Xr wskbd 4 ,
-.Xr wsmouse 4 ,
-.Xr wsconsctl 8
-.Sh HISTORY
-The
-.Nm
-driver first appeared in
-.Bx 4.4 .
-Support for the TIOCM*
-.Xr ioctl 2 Ns s
-appeared in
-.Ox 2.3 .
-.Sh BUGS
-The
-.Nm
-driver now supports cua minor devices, but with this known deficiency
-in the simultaneous outgoing/incoming aspect of the driver:
-The first outgoing connection succeeds, but second and subsequent
-connections fail, apparently due to a getty hang.
-The hung getty apparently prevents the cua device from being re-opened.
-.Pp
-The kernel does not provide a keyboard layout for all manufactured
-.Tn Sun
-keyboard models.