wi(4)
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WI(4) NetBSD Programmer's Manual WI(4)
NAME
wi - WaveLAN/IEEE and PRISM-II 802.11 wireless network driver
SYNOPSIS
wi* at pcmcia? function ?
wi* at pci? dev ? function ?
DESCRIPTION
The wi driver provides support for Lucent Technologies WaveLAN/IEEE PC-
CARD adapters (also known as WaveLAN II cards) and various PCCARD
adapters which use Intersil PRISM-II and PRISM-2.5 chipsets. Note that
while Lucent sells both ISA and PCMCIA WaveLAN/IEEE devices, the ISA
product is actually a PCMCIA card in an ISA to PCMCIA bridge adapter.
Consequently, the wi driver is required for both the ISA and PCMCIA NICs.
Also note that some of the PRISM-II adapters works only at 3.3V, hence
cardbus(4) support is required for those cards to set VCC correctly, even
they are 16bit cards.
The core of the WaveLAN/IEEE is the Lucent Hermes controller. All
host/device interaction is via programmed I/O with the Hermes. The Her-
mes supports 802.11 and 802.3 frames, power management, BSS, WDS and ad-
hoc operation modes. The Silver and the Gold cards of the WaveLAN/IEEE
also support WEP. Unlike the other IEEE 802.11 network cards, the Wave-
LAN Gold cards accept 104 bits key (13 characters) for WEP encryption.
The Intersil PRISM-II controller supports WEP as well.
The wi driver encapsulates all IP and ARP traffic as 802.11 frames, how-
ever it can receive either 802.11 or 802.3 frames. Transmit speed is se-
lectable between 1Mbps fixed, 2Mbps fixed or 2Mbps with auto fallback.
For WaveLAN/IEEE Turbo adapters, speeds up to 6Mbps are available. For
WaveLAN/IEEE Turbo 11Mbps adapters and PRISM-II adapters, speeds up to
11Mbps are available.
The wi driver supports configuration of WaveLAN card for special ad-hoc
operation. In this mode, the nwid is ignored and stations can communi-
cate among each other without the aid of an access point. Note that this
mode is not in the IEEE 802.11 specification and the driver may interop-
erate with other cards. This mode is no longer the default and must be
selected using the ifconfig(8) or wiconfig(8) utilities.
For more information on configuring this device, see ifconfig(8) and
ifmedia(4).
HARDWARE
Cards supported by the wi driver include:
Lucent Wavelan/IEEE 2.0Mb Bronze
Lucent Wavelan/IEEE 2.0Mb Silver
Lucent WaveLAN/IEEE Turbo
Lucent WaveLAN/IEEE Turbo 11Mbps
Melco AIR CONNECT WLI-PCM-L11, WLI-PCM-L11G
Melco AIR CONNECT WLI-CF-S11G
Compaq WL100 11Mbps Wireless
Corega Wireless LAN PCC-11, PCCA_11, PCCB_11
DEC/Cabletron RoamAbout 802.11 DS High Rate
D-Link DWL-650 11Mbps WLAN Card, DCF-650W CF Card
ELECOM Air@Hawk LD-WL11
ELSA AirLancer MC-11
Ericsson Wireless LAN
Farallon Skyline 11Mbps Wireless
Intel PRO/Wireless 2011 LAN PC Card
ICOM SL-1100
IO-DATA WN-B11/PCM
Intersil PRISM Mini-PCI
Linksys Group, Inc. Instant Wireless Network PC Card, CF Card
NCR WaveLAN/IEEE
NEC Wireless Card CMZ-RT-WP, PK-WL001, PC-WL/11C
PLANEX GeoWave/GW-NS110
Symbol Spectrum24 Wireless Networker PC Card, CF Card
TDK LAK-CD011WL
The original PRISM-I chipset is supported by the awi(4) driver.
DIAGNOSTICS
wi%d: init failed The WaveLAN failed to come ready after an initializa-
tion command was issued.
wi%d: failed to allocate %d bytes on NIC The driver was unable to allo-
cate memory for transmit frames in the NIC's on-board RAM.
wi%d: device timeout The WaveLAN failed to generate an interrupt to ac-
knowledge a transmit command. One reason can be that the board is mis-
configured, see wiconfig(8).
SEE ALSO
arp(4), ifmedia(4), netintro(4), pci(4), pcmcia(4), ifconfig(8),
wiconfig(8)
HCF Light programming specification, http://www.wavelan.com.
HISTORY
The wi device driver first appeared in NetBSD 1.5.
AUTHORS
The wi driver was written by Bill Paul <wpaul@ctr.columbia.edu>.
BUGS
The IBSS mode is not supported. PRISM chipset does not have IBSS mode.
The execution of wiconfig(8) while the interface is down can produce some
error messages.
NetBSD 1.6 January 11, 2001 2
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