1.\" $NetBSD: bwi.4,v 1.8 2011/10/13 11:12:05 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 SYNOPSIS 41.Cd "bwi* at pci? dev ? function ?" 42.Sh DESCRIPTION 43The 44.Nm 45driver provides support for Broadcom BCM430x/4318 wireless network adapters. 46For more information on configuring this device, see 47.Xr ifconfig 8 . 48.Ss MIB Variables 49The following per-interface variables are implemented in the 50.Va hw.bwi Ns Em X 51branch of the 52.Xr sysctl 3 53MIB. 54.Bl -tag -width ".Va txpwr_calib" 55.It Va debug 56Debug flags. 57.It Va dwell_time 58Channel dwell time during scan (msec). 59.It Va fw_version 60Firmware version. 61.It Va led_idle 62Number of ticks before LED enters idle state. 63.It Va led_blink 64Allow LED to blink. 65.It Va txpwr_calib 66Enable software TX power calibration. 67.El 68.Sh HARDWARE 69The following cards are among those supported by the 70.Nm 71driver: 72.Pp 73.Bl -column -offset 6n -compact "Apple AirPort Extreme" "BCM4318" "Mini PCI" "b/g" 74.It Em "Card Chip Bus Standard" 75.It Buffalo WLI-PCI-G54S BCM4306 PCI b/g 76.It Dell Wireless 1370 BCM4318 Mini PCI b/g 77.It Dell Wireless 1470 BCM4318 Mini PCI b/g 78.It Dell Truemobile 1400 BCM4309 Mini PCI b/g 79.It Dell Latitude D505 BCM4306 PCI b/g 80.It Apple AirPort Extreme b/g 81.El 82.Sh FILES 83The firmware for the adapter is not shipped with 84.Nx 85and must be obtained separately. 86An archive with firmware files that are known to work can be found at: 87.Bd -literal -offset indent 88http://leaf.dragonflybsd.org/~sephe/bwi/v3.tbz 89.Ed 90.Pp 91The firmware files conventionally reside in 92.Pa /libdata/firmware/bwi 93and will be loaded when the interface is brought up. 94.Em Note : 95the v3 subdirectory in the above firmware archive should exist 96in the firmware folder. 97The full list of paths checked for firmware can be found in the 98.Va hw.firmware.path 99.Xr sysctl 3 100node. 101.Sh SEE ALSO 102.Xr arp 4 , 103.Xr ifmedia 4 , 104.Xr pci 4 , 105.Xr ifconfig 8 , 106.Xr sysctl 8 , 107.Xr wiconfig 8 , 108.Xr wpa_supplicant 8 109.Sh HISTORY 110The 111.Nm 112driver first appeared in 113.Nx 6.0 . 114.Sh AUTHORS 115.An -nosplit 116The 117.Nm 118driver was written by 119.An Sepherosa Ziehau 120for Dragonfly BSD. 121It was ported to 122.Nx 123by 124.An Taylor R. Campbell Aq campbell@mumble.net . 125.Pp 126The hardware specification was reverse engineered by the people at 127.Pa http://bcm-specs.sipsolutions.net . 128Thanks go also to johill and mb on the #bcm-specs channel. 129.Sh BUGS 130BCM4306 and BCM4309 chips do not work properly on channel 1, 2, and 3. 131.Pp 132The 133.Nx 134driver does not yet support cardbus devices. 135