133 lines
4.1 KiB
Groff
133 lines
4.1 KiB
Groff
.\" $NetBSD: bwi.4,v 1.4 2009/03/25 07:50:05 agc Exp $
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.\"
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.\" Copyright (c) 2007 The DragonFly Project. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\"
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in
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.\" the documentation and/or other materials provided with the
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.\" distribution.
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.\" 3. Neither the name of The DragonFly Project nor the names of its
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.\" contributors may be used to endorse or promote products derived
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.\" from this software without specific, prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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.\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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.\" COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
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.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $DragonFly: src/share/man/man4/bwi.4,v 1.10 2008/07/26 16:25:40 swildner Exp $
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.\"
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.Dd March 24, 2009
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.Dt BWI 4
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.Os
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.Sh NAME
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.Nm bwi
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.Nd Broadcom BCM430x/4318 IEEE 802.11b/g wireless network driver
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for Broadcom BCM430x/4318 wireless network adapters.
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For more information on configuring this device, see
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.Xr ifconfig 8 .
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.Ss MIB Variables
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The following per-interface variables are implemented in the
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.Va hw.bwi Ns Em X
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branch of the
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.Xr sysctl 3
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MIB.
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.Bl -tag -width ".Va txpwr_calib"
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.It Va debug
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Debug flags.
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.It Va dwell_time
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Channel dwell time during scan (msec).
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.It Va fw_version
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Firmware version.
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.It Va led_idle
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Number of ticks before LED enters idle state.
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.It Va led_blink
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Allow LED to blink.
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.It Va txpwr_calib
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Enable software TX power calibration.
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.El
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.Sh HARDWARE
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The following cards are among those supported by the
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.Nm
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driver:
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.Pp
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.Bl -column -compact "Apple AirPort Extreme" "BCM4318" "Mini PCI" "b/g" -offset 6n
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.Em "Card Chip Bus Standard"
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Buffalo WLI-PCI-G54S BCM4306 PCI b/g
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Dell Wireless 1370 BCM4318 Mini PCI b/g
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Dell Wireless 1470 BCM4318 Mini PCI b/g
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Dell Truemobile 1400 BCM4309 Mini PCI b/g
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Dell Latitude D505 BCM4306 PCI b/g
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Apple AirPort Extreme b/g
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.El
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.Sh FILES
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The firmware for the adapter is not shipped with
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.Nx
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and must be obtained separately.
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An archive with firmware files that are known to work can be found at:
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.Bd -literal -offset indent
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http://leaf.dragonflybsd.org/~sephe/bwi/v3.tbz
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.Ed
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.Pp
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The firmware files conventionally reside in
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.Pa /libdata/firmware/bwi
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and will be loaded when the interface is brought up.
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.Em Note :
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the v3 subdirectory in the above firmware archive should exist
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in the firmware folder.
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The full list of paths checked for firmware can be found in the
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.Va hw.firmware.path
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.Xr sysctl 3
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node.
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.Sh SEE ALSO
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.Xr arp 4 ,
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.Xr ifmedia 4 ,
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.Xr pci 4 ,
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.Xr wiconfig 4 ,
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.Xr ifconfig 8 ,
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.Xr sysctl 8 ,
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.Xr wpa_supplicant 8
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.Sh HISTORY
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The
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.Nm
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driver first appeared in
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.Nx 6.0 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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driver was written by
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.An Sepherosa Ziehau
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for Dragonfly BSD.
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It was ported to
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.Nx
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by
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.An Taylor R. Campbell Aq campbell@mumble.net .
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.Pp
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The hardware specification was reverse engineered by the people at
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.Pa http://bcm-specs.sipsolutions.net .
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Thanks go also to johill and mb on the #bcm-specs channel.
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.Sh BUGS
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BCM4306 and BCM4309 chips do not work properly on channel 1, 2, and 3.
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.Pp
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The
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.Nx
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driver does not yet support cardbus devices.
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