1.\" $NetBSD: bwi.4,v 1.6 2011/01/30 23:29:24 njoly Exp $ 2.\" 3.\" Copyright (c) 2007 The DragonFly Project. All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in 13.\" the documentation and/or other materials provided with the 14.\" distribution. 15.\" 3. Neither the name of The DragonFly Project nor the names of its 16.\" contributors may be used to endorse or promote products derived 17.\" from this software without specific, prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 22.\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 23.\" COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 24.\" INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 25.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 27.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 28.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 29.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" $DragonFly: src/share/man/man4/bwi.4,v 1.10 2008/07/26 16:25:40 swildner Exp $ 33.\" 34.Dd March 24, 2009 35.Dt BWI 4 36.Os 37.Sh NAME 38.Nm bwi 39.Nd Broadcom BCM430x/4318 IEEE 802.11b/g wireless network driver 40.Sh DESCRIPTION 41The 42.Nm 43driver provides support for Broadcom BCM430x/4318 wireless network adapters. 44For more information on configuring this device, see 45.Xr ifconfig 8 . 46.Ss MIB Variables 47The following per-interface variables are implemented in the 48.Va hw.bwi Ns Em X 49branch of the 50.Xr sysctl 3 51MIB. 52.Bl -tag -width ".Va txpwr_calib" 53.It Va debug 54Debug flags. 55.It Va dwell_time 56Channel dwell time during scan (msec). 57.It Va fw_version 58Firmware version. 59.It Va led_idle 60Number of ticks before LED enters idle state. 61.It Va led_blink 62Allow LED to blink. 63.It Va txpwr_calib 64Enable software TX power calibration. 65.El 66.Sh HARDWARE 67The following cards are among those supported by the 68.Nm 69driver: 70.Pp 71.Bl -column -offset 6n -compact "Apple AirPort Extreme" "BCM4318" "Mini PCI" "b/g" 72.It Em "Card Chip Bus Standard" 73.It Buffalo WLI-PCI-G54S BCM4306 PCI b/g 74.It Dell Wireless 1370 BCM4318 Mini PCI b/g 75.It Dell Wireless 1470 BCM4318 Mini PCI b/g 76.It Dell Truemobile 1400 BCM4309 Mini PCI b/g 77.It Dell Latitude D505 BCM4306 PCI b/g 78.It Apple AirPort Extreme b/g 79.El 80.Sh FILES 81The firmware for the adapter is not shipped with 82.Nx 83and must be obtained separately. 84An archive with firmware files that are known to work can be found at: 85.Bd -literal -offset indent 86http://leaf.dragonflybsd.org/~sephe/bwi/v3.tbz 87.Ed 88.Pp 89The firmware files conventionally reside in 90.Pa /libdata/firmware/bwi 91and will be loaded when the interface is brought up. 92.Em Note : 93the v3 subdirectory in the above firmware archive should exist 94in the firmware folder. 95The full list of paths checked for firmware can be found in the 96.Va hw.firmware.path 97.Xr sysctl 3 98node. 99.Sh SEE ALSO 100.Xr arp 4 , 101.Xr ifmedia 4 , 102.Xr pci 4 , 103.Xr wiconfig 4 , 104.Xr ifconfig 8 , 105.Xr sysctl 8 , 106.Xr wpa_supplicant 8 107.Sh HISTORY 108The 109.Nm 110driver first appeared in 111.Nx 6.0 . 112.Sh AUTHORS 113.An -nosplit 114The 115.Nm 116driver was written by 117.An Sepherosa Ziehau 118for Dragonfly BSD. 119It was ported to 120.Nx 121by 122.An Taylor R. Campbell Aq campbell@mumble.net . 123.Pp 124The hardware specification was reverse engineered by the people at 125.Pa http://bcm-specs.sipsolutions.net . 126Thanks go also to johill and mb on the #bcm-specs channel. 127.Sh BUGS 128BCM4306 and BCM4309 chips do not work properly on channel 1, 2, and 3. 129.Pp 130The 131.Nx 132driver does not yet support cardbus devices. 133