125 lines
3.1 KiB
Groff
125 lines
3.1 KiB
Groff
.\"
|
|
.\" Copyright (c) 2004 Tom Rhodes
|
|
.\" 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.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd June 21, 2004
|
|
.Dt RC 4
|
|
.Os
|
|
.Sh NAME
|
|
.Nm rc
|
|
.Nd RISCom/8 multiport card
|
|
.Sh SYNOPSIS
|
|
.Cd device isa
|
|
.Cd device rc
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
driver provides support for the
|
|
.Tn SDL
|
|
Communications
|
|
.Tn Riscom/8
|
|
boards.
|
|
The
|
|
.Tn RISCom/8
|
|
is an eight port
|
|
.Tn ISA
|
|
.Tn RS-232C
|
|
communications multiplexor with a built in
|
|
.Tn RISC
|
|
processor.
|
|
It uses a block of sixteen
|
|
.Tn I/O
|
|
ports in the range 0x200 to 0x3f0 selectable by on-board
|
|
switches or jumpers.
|
|
The block must be aligned on a sixteen port boundary.
|
|
The jumper-selectable hardware interrupt level may be set to
|
|
be detected during system
|
|
initialization using settings found in the
|
|
.Pa /boot/device.hints
|
|
file.
|
|
.Pp
|
|
This driver is mostly based on Cirrus Logic CL-CD180 driver.
|
|
.Sh ERRORS
|
|
The following driver specific error messages
|
|
may be reported:
|
|
.Bl -tag -width Er
|
|
.It Bq Er EBUSY
|
|
May be returned if the device was busy when a
|
|
request to access its resources was made by
|
|
.Nm
|
|
and was denied.
|
|
.It Bq Er ENOMEM
|
|
May be returned if the
|
|
.Nm
|
|
driver was unable to obtain the
|
|
.Tn IOBASE
|
|
addresses.
|
|
.It Bq Er ENXIO
|
|
May be returned if the device cannot obtain a valid
|
|
.Tn I/O
|
|
port through
|
|
.Fn isa_get_port .
|
|
This error may also be returned if the
|
|
.Fn isa_get_irq
|
|
function cannot obtain a valid
|
|
.Tn IRQ .
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr tty 1 ,
|
|
.Xr ttyname 3 ,
|
|
.Xr sio 4 ,
|
|
.Xr tty 4 ,
|
|
.Xr device.hints 5 ,
|
|
.Xr comcontrol 8 ,
|
|
.Xr getty 8 ,
|
|
.Xr mutex 9 ,
|
|
.Xr splx 9
|
|
.Pp
|
|
.Pa http://www.sdlcomm.com
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
driver first appeared in
|
|
.Fx 2.0.5 .
|
|
This manual page first appeared in
|
|
.Fx 5.3 .
|
|
.Sh AUTHORS
|
|
This manual page was written by
|
|
.An Tom Rhodes Aq trhodes@FreeBSD.org .
|
|
.Sh BUGS
|
|
The
|
|
.Nm
|
|
driver code still uses the
|
|
.Xr spl 9
|
|
functions.
|
|
These should be replaced by
|
|
.Xr mutex 9
|
|
functions.
|
|
.Pp
|
|
The various
|
|
.Fn ttyld_*
|
|
functions should be documented.
|