Add bwfm(4) manpage.

ok stsp@

2 files changed, 113 insertions, 2 deletions

diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile
index b4c575cc34e..c41e2112b73 100644
--- a/share/man/man4/Makefile
+++ b/share/man/man4/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.657 2017/08/28 19:31:57 jasper Exp $
+#	$OpenBSD: Makefile,v 1.658 2017/10/30 14:14:18 patrick Exp $
 
 MAN=	aac.4 ac97.4 acphy.4 \
 	acpi.4 acpiac.4 acpials.4 acpiasus.4 acpibat.4 \
@@ -15,7 +15,7 @@ MAN=	aac.4 ac97.4 acphy.4 \
 	auacer.4 audio.4 \
 	aue.4 auglx.4 auich.4 auixp.4 autri.4 auvia.4 axe.4 axen.4 azalia.4 \
 	bce.4 berkwdt.4 bge.4 bio.4 bktr.4 bmtphy.4 bnx.4 \
-	boca.4 bpf.4 brgphy.4 bridge.4 brswphy.4 bwi.4 bytgpio.4 \
+	boca.4 bpf.4 brgphy.4 bridge.4 brswphy.4 bwfm.4 bwi.4 bytgpio.4 \
 	cac.4 cas.4 cardbus.4 carp.4 cd.4 cdce.4 cfxga.4 \
 	ch.4 chvgpio.4 ciphy.4 ciss.4 clcs.4 clct.4 cmpci.4 \
 	com.4 cue.4 cy.4 cz.4 dc.4 dcphy.4 ddb.4 de.4 \
diff --git a/share/man/man4/bwfm.4 b/share/man/man4/bwfm.4
new file mode 100644
index 00000000000..23670af5017
--- /dev/null
+++ b/share/man/man4/bwfm.4
@@ -0,0 +1,111 @@
+.\" $OpenBSD: bwfm.4,v 1.1 2017/10/30 14:14:18 patrick Exp $
+.\"
+.\" Copyright (c) 2017 Patrick Wildt <patrick@blueri.se>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: October 30 2017 $
+.Dt BWFM 4
+.Os
+.Sh NAME
+.Nm bwfm
+.Nd Broadcom and Cypress wireless network driver
+.Sh SYNOPSIS
+.Cd "bwfm* at usb?"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for Broadcom and Cypress FullMAC network
+adapters.
+.Pp
+These are the modes the
+.Nm
+driver can operate in:
+.Bl -tag -width "IBSS-masterXX"
+.It BSS mode
+Also known as
+.Em infrastructure
+mode, this is used when associating with an access point, through
+which all traffic passes.
+This mode is the default.
+.El
+.Pp
+The
+.Nm
+driver can be configured to use
+Wired Equivalent Privacy (WEP) or
+Wi-Fi Protected Access (WPA-PSK and WPA2-PSK).
+WPA is the current encryption standard for wireless networks.
+It is strongly recommended that WEP
+not be used as the sole mechanism
+to secure wireless communication,
+due to serious weaknesses in it.
+The
+.Nm
+driver relies on the software 802.11 stack for the WPA handshake.
+Both encryption and decryption of data frames are handled by the
+firmware.
+.Pp
+The firmware automatically select the transmit speed and the channel
+depending on the received signal strength.
+.Pp
+The
+.Nm
+driver can be configured at runtime with
+.Xr ifconfig 8
+or on boot with
+.Xr hostname.if 5 .
+.Sh FILES
+The driver needs a firmware file which is loaded when the driver
+attaches.
+A prepackaged version of the firmware can be installed using
+.Xr fw_update 1 .
+.Sh EXAMPLES
+The following example scans for available networks:
+.Pp
+.Dl # ifconfig bwfm0 scan
+.Pp
+The following
+.Xr hostname.if 5
+example configures bwfm0 to join network
+.Dq mynwid ,
+using WPA key
+.Dq mywpakey ,
+obtaining an IP address using DHCP:
+.Bd -literal -offset indent
+nwid mynwid
+wpakey mywpakey
+dhcp
+.Ed
+.Sh SEE ALSO
+.Xr arp 4 ,
+.Xr ifmedia 4 ,
+.Xr intro 4 ,
+.Xr netintro 4 ,
+.Xr usb 4 ,
+.Xr hostname.if 5 ,
+.Xr ifconfig 8
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Ox 6.3 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+driver was written by
+.An Patrick Wildt Aq Mt patrick@blueri.se .
+.Sh CAVEATS
+The firmware is outdated and contains known vulnerabilities.
+SDIO and PCI attachments are not yet supported.