.\"
.\" Copyright (c) 1996 Jonathan Stone.
.\" All rights reserved.
.\"
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.\" modification, are permitted provided that the following conditions
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.\"    documentation and/or other materials provided with the distribution.
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.\"    must display the following acknowledgement:
.\"      This product includes software developed by Jonathan Stone.
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.\"    derived from this software without specific prior written permission
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.\"	$NetBSD: intro.4,v 1.12 2017/02/18 22:39:01 wiz Exp $
.\"
.Dd February 17, 2017
.Dt INTRO 4 sun3
.Os
.Sh NAME
.Nm intro
.Nd introduction to sun3 special files and hardware support
.Sh DESCRIPTION
This section describes the special files, related driver functions,
and networking support
available in the system.
In this part of the manual, the
.Tn SYNOPSIS
section of
each configurable device gives a sample specification
for use in constructing a system description for the
.Xr config 1
program.
The
.Tn DIAGNOSTICS
section lists messages which may appear on the console
and/or in the system error log
.Pa /var/log/messages
due to errors in device operation;
see
.Xr syslogd 8
for more information.
.Pp
This section contains both devices
which may be configured into the system
and network related information.
The networking support is introduced in
.Xr netintro 4 .
.Sh DEVICE SUPPORT
This section describes the hardware supported on the Sun3
platform.
Software support for these devices comes in two forms.  A hardware
device may be supported with a character or block
.Em device driver ,
or it may be used within the networking subsystem and have a
.Em network interface driver .
Block and character devices are accessed through files in the file
system of a special type; see
.Xr mknod 8 .
Network interfaces are indirectly accessed through the interprocess
communication facilities provided by the system; see
.Xr socket 2 .
.Pp
A hardware device is identified to the system at configuration time
and the appropriate device or network interface driver is then compiled
into the system.  When the resultant system is booted, the
autoconfiguration facilities in the system probe for the device
and, if found, enable the software support for it.
If a device does not respond at autoconfiguration
time it is not accessible at any time afterwards.
To enable a device which did not autoconfigure,
the system must be rebooted.
.Pp
The autoconfiguration system is described in
.Xr sun3/autoconf 4 .
A list of the supported devices is given below.
.Sh SEE ALSO
.Xr config 1 ,
.Xr cd 4 ,
.Xr sd 4 ,
.Xr ss 4 ,
.Xr st 4 ,
.Xr sun3/autoconf 4
.Sh SUPPORTED SYSTEMS
The following Sun3 system architectures and models are supported:
.Bl -tag -width eeprom
.It sun3
Sun3 systems: (MC68020)
.br
Sun 3/50 (16 MHz)
.br
Sun 3/60 (20 MHz)
.br
Sun 3/100 series (16.67 MHz)
.br
Sun 3/200 series (25 MHz)
.br
.It sun3x
Sun3X systems: (MC68030)
.br
Sun 3/80  (20 MHz)
.br
Sun 3/470 (33 MHz)
.br
.El
.Sh LIST OF DEVICES
The devices listed below are supported in this incarnation of
the system.  Devices are indicated by their functional interface.
Not all supported devices are listed.
.Pp
.Bl -tag -width eeprom
.It bwtwo
black and white obio frame buffer
.It cgtwo
8 bit VMEbus color frame buffer
.It cgfour
8 bit obio color graphics frame buffer
.It eeprom
Sun non-volatile configuration RAM driver
.It esp
NCR53C90 ESP100 (Sun 3/80) SCSI controller
.It fd
Intel 82072 obio (Sun 3/80) floppy disk drive controller
.It ie
Intel 82586 Ethernet controller (Sun 3/100, 3/200, 3/470)
.It kbd
Sun type 2, type 3, type 4, and type 5 keyboards (on zs)
.It le/lebuffer
AMD 7990 LANCE Ethernet controller (Sun 3/50, 3/60, 3/80)
.It ms
Sun mouse (on zs)
.It si
NCR5380 "SCSI-3" VMEbus SCSI controller
.It vme
VMEbus support (Sun 3/100, 3/200, 3/470)
.It xd
Xylogics 753/7053 VMEbus SMD disk controller
.It xy
Xylogics 450/451 VMEbus SMD disk controller
.It zs
Zilog 8530 serial controller
.El
.Sh UNSUPPORTED DEVICES
The following devices are not supported, due to unavailability of
either documentation or sample hardware:
.Bl -tag -width eeprom
.It sc
Sun "SCSI-2" VMEbus SCSI controller
.El
.Sh HISTORY
This
.Tn sun3
.Nm intro
appeared in
.Nx 1.3 .
Large chunks of text carefully recycled (shamelessly appropriated)
from
.Nx Ns /pmax
.Xr sun3/intro 4 .