106 lines
3.4 KiB
Groff
106 lines
3.4 KiB
Groff
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.\" $NetBSD: awi.4,v 1.1 1999/11/04 19:36:01 sommerfeld Exp $
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.\"
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.\"
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.\" $Id: awi.4,v 1.1 1999/11/04 19:36:01 sommerfeld Exp $
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.\"
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.Dd October 31, 1999
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.Dt AWI 4
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.Os
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.Sh NAME
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.Nm awi
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.Nd
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Bay Networks BayStack 650 IEEE 802.11 PCMCIA driver
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.Sh SYNOPSIS
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.Cd "awi* at pcmcia? function ?"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for BayStack 650 IEEE 802.11 Frequency Hopping
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PCCARD adapters.
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.Pp
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The BayStack 650 is based on an AMD 79c930 controller, which provides
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access to 32kb of memory shared between the controller and the host.
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All host/device interaction is via this shared memory, which can be
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accessed either via PCMCIA memory space or I/O space.
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The
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.Nm
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driver encapsulates all IP and ARP traffic as 802.11 frames. Transmit
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speed is fixed at 1Mbps.
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.Pp
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The driver currently only works in infrastructure mode, communicating
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with an Access Point which serves as a link-layer bridge between an
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ethernet and the wireless network.
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.Pp
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This card seems to take between 5 and 20 seconds after it has been brought up
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to synchronize with an AP. When using
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.Xr dhclient 8
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to automatically configure an address on this card, it may be
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advisable to delay the invocation of dhclient for about 10 seconds
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after the card is brought up using
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.Xr ifconfig 8
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.Pp
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For more information on configuring this device, see
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.Xr ifconfig 8
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.Sh DIAGNOSTICS
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.Bl -diag
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.It "awi0: unable to allocate memory space; using i/o only"
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Indicates that the driver was not able to allocate 32kb of PCMCIA bus
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address space into which to map the device; the driver will use the
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(slightly slower) i/o-space only access methods to read and write to
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the shared memory. Since by default, NetBSD, only allocates 16kb of
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address space per PCMCIA controller, this message is in some sense to
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be expected and should not be a cause for alarm.
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See
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.Xr pcmcia 4
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for information on how to increase the memory available to the PCMCIA
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controller.
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.It "awi0: selftest failed (code %x)"
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The device failed to pass its internal selftest.
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.It "awi0: device failed to complete selftest (code %x)"
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The device failed to complete its self test within 5 seconds.
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.It "awi0: device timeout"
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.It "awi0: timeout waiting for command completion"
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The device failed to generate an interrupt to acknowledge a command.
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.It "awi0: transmit timeout"
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The device failed to generate an interrupt to acknowledge a
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transmitted packet.
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.It "awi0: large frame truncated"
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The system handed the driver a packet which was too large to transmit
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in one piece.
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.It "awi0: device enable failed"
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The system was unable to power on the card.
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.It "awi0: associated with %s, SSID: %s
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The device has successfully synchronized with the identified Access
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Point and is ready to relay traffic.
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.It "awi0: no recent beacon from %s; rescanning"
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The device has not heard a beacon from its currently associated Access
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Point recently, and is looking for a new access point.
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.It "awi0: received deauth"
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The access point the card was most recently associated with has
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forgotten about us.
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.El
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.Sh BUGS
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Doesn't support ad-hoc mode or WEP.
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Round trip times seem higher than what one might expect.
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.Sh SEE ALSO
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.Xr arp 4 ,
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.Xr netintro 4 ,
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.Xr pcmcia 4 ,
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.Xr wi 4 ,
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.Xr ifconfig 8 ,
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.Xr wiconfig 8
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.Rs
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.%T Am79C930 PCnet Mobile Single-Chip Wireless LAN Media Access Controller
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.%O http://www.amd.com
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.Re
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.Sh HISTORY
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The
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.Nm
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device driver first appeared in
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.Nx 1.5 .
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.Sh AUTHOR
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The
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.Nm
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driver was written by
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.An Bill Sommerfeld Aq sommerfeld@netbsd.org .
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