.\"	$NetBSD: fwctl.8,v 1.3 2005/07/12 09:03:10 wiz Exp $
.\"
.\" Copyright (c) 2005 KIYOHARA Takashi
.\" All rights reserved.
.\"
.\" Copyright (c) 2002 Hidetoshi Shimokawa
.\" 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 ``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 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)
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.\" $FreeBSD: /repoman/r/ncvs/src/usr.sbin/fwcontrol/fwcontrol.8,v 1.16 2005/01/18 20:02:34 ru Exp $
.\"
.Dd June 18, 2005
.Dt FWCTL 8
.Os
.Sh NAME
.Nm fwctl
.Nd IEEE1394 control utility
.Sh SYNOPSIS
.Nm
.Op Fl prt
.Op Fl b Ar pri_req
.Op Fl c Ar node
.Op Fl d Ar node
.Op Fl g Ar gap_count
.Op Fl l Ar file
.Op Fl m Ar EUI64 | hostname
.Op Fl o Ar node
.Op Fl R Ar filename
.Op Fl S Ar filename
.Op Fl s Ar node
.Op Fl u Ar bus_num
.Sh DESCRIPTION
The
.Nm
utility is designed to provide a way for users to access and control
the
.Fx
IEEE1394 subsystem.
Without options,
.Nm
will output a list of devices that are/were connected to the bus.
.Pp
The following options are available:
.Bl -tag -width XmXEUI64XhostnameXX -offset indent
.It Fl c Ar node
Show the configuration ROM on the node.
.It Fl d Ar node
Hex dump of the configuration ROM.
.It Fl g Ar gap_count
Broadcast
.Ar gap_count
by phy_config packet.
.It Fl i Ar pri_req
Set the
.Dv PRIORITY_BUDGET
register on all supported nodes.
.It Fl l Ar file
Load hex dump file of the configuration ROM and parse it.
.It Fl m Ar EUI64 | hostname
Set default fwmem target.
Hostname will be converted to EUI64.
.It Fl o Ar node
Send a link-on PHY packet to the node.
.It Fl p
Dump PHY registers.
.It Fl R Ar filename
Receive DV stream and dump it to a file.
Use Ctrl-C to stop the receiving.
Some DV cameras seem not to send the stream if a bus manager exits.
If you cannot get the stream, try the following commands:
.Bd -literal -offset indent
sysctl hw.ieee1394if.try_bmr=0
fwctl -r
.Ed
.Pp
The resulting file contains raw DV data excluding isochronous header
and CIP header.
It can be handled by the
.Pa pkgsrc/multimedia/libdv
package.
.It Fl r
Initiate bus reset.
.It Fl S Ar filename
Send a DV file as isochronous stream.
.It Fl s Ar node
Write to the
.Dv RESET_START
register on the node.
.It Fl t
Show the topology map.
.It Fl u Ar bus_num
Specify the IEEE1394 bus number to be operated on.
.El
.Sh FILES
.Bl -tag
.It Pa /dev/fw0.0
.El
.Sh EXAMPLES
Each DV frame has a fixed size and it is easy to edit the frame order.
.Pp
.Dl "fwctl -R original.dv"
.Pp
Receive stream.
.Pp
.Dl "dd if=original.dv of=first.dv bs=120000 count=30"
.Pp
Get first 30 frames (NTSC).
.Pp
.Dl "dd if=original.dv of=second.dv bs=120000 skip=30 count=30"
.Pp
Get second 30 frames (NTSC).
.Pp
.Dl "cat second.dv first.dv | fwctl -S /dev/stdin"
.Pp
Swap first and second 30 frames and send them to DV recorder.
.Pp
For PAL, replace
.Dq Li bs=120000
with
.Dq Li bs=144000 .
.Sh SEE ALSO
.Xr fwip 4 ,
.Xr fwohci 4 ,
.Xr ieee1394if 4 ,
.Xr sbp 4
.Sh HISTORY
The
.Nm
command first appeared in
.Fx 5.0 ,
as
.Ic fwcontrol .
It was added to
.Nx 4.0
under its present name.
.Sh AUTHORS
.An Hidetoshi Shimokawa Aq simokawa@FreeBSD.org
.An KIYOHARA Takashi Aq kiyohara@NetBSD.org
.Sh BUGS
This utility is still under development and provided for debugging
purposes.