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Commit e85d0918 authored by Daniel Drake's avatar Daniel Drake Committed by Jeff Garzik
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[PATCH] ZyDAS ZD1211 USB-WLAN driver 

There are 60+ USB wifi adapters available on the market based on the ZyDAS
ZD1211 chip.

Unlike the predecessor (ZD1201), ZD1211 does not have a hardware MAC, so most
data operations are coordinated by the device driver. The ZD1211 chip sits
alongside an RF transceiver which is also controlled by the driver. Our driver
currently supports 2 RF types, we know of one other available in a few marketed
products which we will be supporting soon.

Our driver also supports the newer revision of ZD1211, called ZD1211B. The
initialization and RF operations are slightly different for the new revision,
but the main difference is 802.11e support. Our driver does not support the
QoS features yet, but we think we know how to use them.

This driver is based on ZyDAS's own GPL driver available from www.zydas.com.tw.
ZyDAS engineers have been responsive and supportive of our efforts, so thumbs
up to them. Additionally, the firmware is redistributable and they have
provided device specs.

This driver has been written primarily by Ulrich Kunitz and myself. Graham
Gower, Greg KH, Remco and Bryan Rittmeyer have also contributed. The
developers of ieee80211 and softmac have made our lives so much easier- thanks!

We maintain a small info-page: http://zd1211.ath.cx/wiki/DriverRewrite



If there is enough time for review, we would like to aim for inclusion in
2.6.18. The driver works nicely as a STA, and can connect to both open and
encrypted networks (we are using software-based encryption for now). We will
work towards supporting more advanced features in the future (ad-hoc, master
mode, 802.11a, ...).

Signed-off-by: default avatarDaniel Drake <dsd@gentoo.org>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 4a232e72

drivers/net/wireless/Kconfig

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@@ -550,6 +550,7 @@ config USB_ZD1201 


source "drivers/net/wireless/hostap/Kconfig"

source "drivers/net/wireless/bcm43xx/Kconfig"

source "drivers/net/wireless/zd1211rw/Kconfig"



# yes, this works even when no drivers are selected

config NET_WIRELESS

drivers/net/wireless/Makefile

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@@ -36,6 +36,7 @@ obj-$(CONFIG_PRISM54) += prism54/ 


obj-$(CONFIG_HOSTAP)		+= hostap/

obj-$(CONFIG_BCM43XX)		+= bcm43xx/

obj-$(CONFIG_ZD1211RW)		+= zd1211rw/



# 16-bit wireless PCMCIA client drivers

obj-$(CONFIG_PCMCIA_RAYCS)	+= ray_cs.o

drivers/net/wireless/zd1211rw/Kconfig

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config ZD1211RW

	tristate "ZyDAS ZD1211/ZD1211B USB-wireless support"

	depends on USB && IEEE80211 && IEEE80211_SOFTMAC && NET_RADIO && EXPERIMENTAL

	select FW_LOADER

	---help---

	  This is an experimental driver for the ZyDAS ZD1211/ZD1211B wireless

	  chip, present in many USB-wireless adapters.



	  Device firmware is required alongside this driver. You can download the

	  firmware distribution from http://zd1211.ath.cx/get-firmware



config ZD1211RW_DEBUG

	bool "ZyDAS ZD1211 debugging"

	depends on ZD1211RW

	---help---

	  ZD1211 debugging messages. Choosing Y will result in additional debug

	  messages being saved to your kernel logs, which may help debug any

	  problems.

drivers/net/wireless/zd1211rw/Makefile

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obj-$(CONFIG_ZD1211RW) += zd1211rw.o



zd1211rw-objs := zd_chip.o zd_ieee80211.o \

		zd_mac.o zd_netdev.o \

		zd_rf_al2230.o zd_rf_rf2959.o \

		zd_rf.o zd_usb.o zd_util.o



ifeq ($(CONFIG_ZD1211RW_DEBUG),y)

EXTRA_CFLAGS += -DDEBUG

endif

drivers/net/wireless/zd1211rw/zd_chip.c

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File added.

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