\"      $NetBSD: fwctl.8,v 1.17 2014/03/18 18:20:46 riastradh Exp $
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\" Copyright (c) 2005 KIYOHARA Takashi
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\" Copyright (c) 2002 Hidetoshi Shimokawa
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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 [email protected]
An Petr Holub Aq Mt [email protected]
- MPEG TS mode.
An KIYOHARA Takashi Aq Mt [email protected]
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).

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