.\"	$OpenBSD: puc.4,v 1.4 2000/09/17 17:16:13 deraadt Exp $
.\"	$NetBSD: puc.4,v 1.7 1999/07/03 05:55:23 cgd Exp $
.\"
.\" Copyright (c) 1998 Christopher G. Demetriou.  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.
.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgement:
.\"      This product includes software developed by Christopher G. Demetriou
.\"      for the NetBSD Project.
.\" 4. The name of the author may not be used to endorse or promote products
.\"    derived from this software without specific prior written permission
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\"
.Dd July 11, 1998
.Dt PUC 4
.Os
.Sh NAME
.Nm puc
.Nd PCI
.Dq universal
communications card driver
.Sh SYNOPSIS
.Cd "puc* at pci?
.Cd "pccom* at puc? port ?"
.Cd "lpt* at puc? port ?"
.Sh DESCRIPTION
The
.Nm
driver provides support for PCI communications cards containing
simple communications ports, such as NS16550-family
.Pf ( Nm com )
serial ports and standard PC-like
.Pf ( Nm lpt )
parallel ports.
The driver is called
.Dq universal
because the interfaces to these devices aren't nearly as well
defined and standard as they should be.
.Pp
The driver currently supports the following cards:
.Pp
.Bl -tag -width -offset indent -compact
.It Tn "Dolphin Peripherals 4014 (dual parallel)"
.It Tn "Dolphin Peripherals 4035 (dual serial)"
.It Tn "SIIG Cyber 2P1S PCI (dual parallel and single serial)"
.It Tn "SIIG Cyber 2S1P PCI (dual serial and single parallel)"
.It Tn "SIIG Cyber 4S PCI (quad serial)"
.It Tn "SIIG Cyber I/O PCI (single serial and single parallel)"
.It Tn "SIIG Cyber Parallel Dual PCI (dual parallel)"
.It Tn "SIIG Cyber Parallel PCI (single parallel)"
.It Tn "SIIG Cyber Serial Dual PCI (dual serial)"
.It Tn "SIIG Cyber Serial PCI (single serial)"
.It Tn "VScom PCI-800 (8 port serial, probably OEM)"
.It Tn "AT&T/Lucent Venus Modem (found on IBM 33L4618 card, Actiontec 56K, and others)"
.It Tn "US Robotics 3CP5609 PCI (modem)"
.It Tn "Lava Computers 2SP-PCI (parallel port)"
.It Tn "Lava Computers 2SP-PCI and Quattro-PCI (dual serial)"
.It Tn "NEC PK-UG-X008 (serial)"
.It Tn "NEC PK-UG-X001 K56flex PCI (modem)"
.It Tn "Koutech IOFLEX-2S (dual serial)"
.El
.Pp
The driver does not support these cards:
.Pp
.Bl -tag -width -offset indent -compact
.It Tn "Dolphin Peripherals 4006 (single parallel)"
.It Tn "Dolphin Peripherals 4025 (single serial)"
.It Tn "Dolphin Peripherals 4078 (dual serial and single parallel)"
.El
.Pp
but support for them (and for similar cards) should be trivial to add.
.Pp
The
.Ar port
locator is used to identify the port (starting from 0) on the
communications card that a subdevice is supposed to attach to.
Typically, the numbering of ports is explained in a card's
hardware documentation, and the port numbers used by the driver
are the same as (or one off from, e.g., the manual uses ports
numbered starting from 1) those described in the documentation.
.Sh SEE ALSO
.Xr com 4 ,
.Xr lpt 4 ,
.Xr pci 4
.Sh HISTORY
The
.Nm
driver first appeared in
.Nx 1.4 .
.Ox
support was added in
.Ox 2.7 .
.Sh AUTHOR
The
.Nm
driver was written by Chris Demetriou.
.Sh BUGS
The current design of this driver keeps any
.Nm com
ports on these cards from easily being used as console.
Of course, because boards with those are PCI boards, they also suffer
from dynamic address assignment, which also means that they
can't easily be used as console.
.Pp
Some of cards supported by this driver have jumper-selectable
.Nm com
port clock multipliers, which are unsupported by this driver.
Those can be easily accommodated with driver flags, or by
using a properly scaled baud rate when talking to the card.
.Pp
Some of the cards supported by this driver, e.g., the VScom PCI-800,
have software-selectable
.Nm com
port clock multipliers, which are unsupported by this driver.
Those can be accomodated using internal driver flags, or by using
a properly scaled baud rate when talking to the card.
.Pp
Some ports use an
.Nm lpt
driver other than the machine-independent driver.
Those ports will not be able to use
.Nm lpt
ports attached to
.Nm
devices.