115 lines
3.7 KiB
Groff
115 lines
3.7 KiB
Groff
.\" $NetBSD: atppc.4,v 1.15 2004/01/31 21:28:45 wiz Exp $
|
|
.\"
|
|
.\" Copyright (c) 1998, 1999, Nicolas Souchu
|
|
.\" Copyright (c) 2003, 2004 Gary Thorpe <gathorpe@users.sourceforge.net>
|
|
.\" 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.
|
|
.\"
|
|
.Dd January 30, 2004
|
|
.Dt ATPPC 4
|
|
.Os
|
|
.Sh NAME
|
|
.Nm atppc
|
|
.Nd driver for AT-style parallel port chip sets
|
|
.Sh SYNOPSIS
|
|
.Cd "atppc* at acpi?"
|
|
.Cd "atppc* at isa? port 0x378 irq 7 drq 3 flags 0x00"
|
|
.Cd "atppc* at isapnp?"
|
|
.Cd "atppc* at ofisa?"
|
|
.Cd "atppc* at pnpbios? index ?"
|
|
.Cd "atppc* at puc? port ?"
|
|
.Cd options ATPPC_VERBOSE
|
|
.Cd options ATPPC_DEBUG
|
|
.Sh DESCRIPTION
|
|
.Nm
|
|
supports parallel ports and provides the low level support needed
|
|
by higher level drivers such as
|
|
.Xr ppbus 4 .
|
|
This driver attaches where the traditional
|
|
.Nx
|
|
.Xr lpt 4
|
|
driver would ordinarily.
|
|
It provides the data transport and chip set manipulation needed by
|
|
higher driver layers, such as
|
|
.Xr ppbus 4
|
|
and
|
|
.Xr lpt 4 .
|
|
This driver is designed to be one of many possible implementations
|
|
supporting machine independent parallel device support via
|
|
.Xr ppbus 4 .
|
|
.Ss IEEE 1284 support
|
|
.Nm
|
|
is intended to provide to data-link like services to higher level
|
|
IEEE 1284 device drivers (such as
|
|
.Xr ppbus 4 ) .
|
|
.Nm
|
|
does not directly support IEEE 1284 features such as mode negotiation
|
|
but rather provides the necessary infrastructure to allow a higher
|
|
level driver to provide these services.
|
|
.Pp
|
|
.Nm
|
|
does provide chip set manipulation, device handshakes (where
|
|
appropriate), low-level error detection, and data transfer.
|
|
.Ss Supported data transfer modes
|
|
.Nm
|
|
supports the following data transfer modes: Centronics Compatible
|
|
(Standard), Nibble, Byte (PS2), Fast Centronics, ECP, and EPP.
|
|
Standard and Fast Centronics modes are write only, Nibble and Byte
|
|
modes are read only, and ECP and EPP modes are bidirectional.
|
|
.\" .Sh FILES
|
|
.\" .Sh EXAMPLES
|
|
.Sh SEE ALSO
|
|
.Xr acpi 4 ,
|
|
.Xr i386/pnpbios 4 ,
|
|
.Xr isa 4 ,
|
|
.Xr isapnp 4 ,
|
|
.Xr lpt 4 ,
|
|
.Xr ofisa 4 ,
|
|
.Xr ppbus 4 ,
|
|
.Xr puc 4
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
driver is based on the
|
|
.Nm ppc
|
|
driver, which originally appeared in
|
|
.Fx .
|
|
The driver was ported over in
|
|
.Nx 2.0 .
|
|
.Sh AUTHORS
|
|
This manual page is based on the
|
|
.Fx
|
|
.Nm ppc
|
|
manual page.
|
|
The information has been updated for the
|
|
.Nx
|
|
port by Gary Thorpe.
|
|
.Sh BUGS
|
|
The
|
|
.Fx
|
|
driver includes support for some specific chip sets, specifically
|
|
detection of some non-standard device I/O locations on the ISA bus.
|
|
This support was not ported over to the
|
|
.Nx
|
|
version of the driver yet.
|