.\"	$NetBSD: fwctl.8,v 1.17 2014/03/18 18:20:46 riastradh Exp $
.\"
.\" Copyright (c) 2005 KIYOHARA Takashi
.\" All rights reserved.
.\"
.\" Copyright (c) 2002 Hidetoshi Shimokawa
.\" All rights reserved.
.\"
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.\" modification, are permitted provided that the following conditions
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.\" DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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.\" $FreeBSD: src/usr.sbin/fwcontrol/fwcontrol.8,v 1.21 2007/10/31 05:59:17 brueffer Exp $
.\"
.Dd August 24, 2010
.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 mode
.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
.Nx
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 b Ar pri_req
Set the
.Dv PRIORITY_BUDGET
register on all supported nodes.
.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 f Ar node
Force specified
.Ar node
to be the root node on the next bus reset by sending a PHY config packet.
Valid values are 0 - 63.
.It Fl g Ar gap_count
Broadcast new
.Ar gap_count
by phy_config packet.
By default this value is 63 on all nodes.
Valid values are 0 - 63.
.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 mode
Explicitly specify either
.Ar dv
or
.Ar mpeg
mode for the incoming stream.
Only meaningful in case of and must precede the
.Fl R
option.
If not specified, the program will try to guess.
In case of
.Dq format 0x20
error, try to force the
.Ar mpeg
mode.
.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 or MPEG TS stream and dump it to a file.
Use Ctrl-C to stop 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.
The resulting MPEG TS stream can be played and sent over a network using
the VideoLAN tool
.Pa ( pkgsrc/multimedia/vlc ) .
The stream can be piped directly to
.Nm vlc ,
see
.Sx EXAMPLES .
.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.
The default is bus 0.
.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 a DV stream with DV camera attached.
.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 .
.Pp
.Dl "fwctl -R file.m2t"
.Pp
Receive an MPEG TS stream from a camera producing MPEG transport stream.
This has been tested with SONY HDR-FX1E camera that produces HD
MPEG-2 stream at 25 Mbps bandwidth.
.Pp
To send the stream from the camera over the network using TCP (which
surprisingly works better with vlc), you can use
.Dl "fwctl -R - | nc 192.168.10.11 9000"
with
.Pa pkgsrc/net/netcat
and to receive the stream, use
.Dl nc -l -p 9000 | vlc -
.Pp
To netcast via UDP, you need to use
.Pa pkgsrc/misc/buffer ,
since vlc is not fast enough to read UDP packets from
buffers and thus it experiences dropouts when run directly.
The sending side can use
.Dl "fwctl -R - | nc 192.168.10.11 9000"
and to receive the stream, use
.Dl nc -l -u -p 9000 | buffer -s 10k -b 1000 -m 20m -p 5 | vlc -
.Pp
For more information on how to work with
.Nm vlc
see its documentation.
.Sh SEE ALSO
.Xr mplayer 1 ,
.Xr vlc 1 ,
.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 Mt simokawa@FreeBSD.org
.An Petr Holub Aq Mt hopet@ics.muni.cz
- MPEG TS mode.
.An KIYOHARA Takashi Aq Mt kiyohara@NetBSD.org
.Sh BUGS
This utility is still under development and provided for debugging
purposes.
Especially MPEG TS reception support is very rudimental and supports only
high-bandwidth MPEG-2 streams (fn field in CIP header equals 3).