Add ipw2100 wireless driver.

Documentation/networking/README.ipw2100

+
+===========================
+Intel(R) PRO/Wireless 2100 Network Connection Driver for Linux
+README.ipw2100
+
+March 14, 2005
+
+===========================
+Index
+---------------------------
+0. Introduction
+1. Release 1.1.0 Current Features
+2. Command Line Parameters
+3. Sysfs Helper Files
+4. Radio Kill Switch
+5. Dynamic Firmware
+6. Power Management
+7. Support
+8. License
+
+
+===========================
+0. Introduction
+------------ -----   -----       ----       ---       --         -     
+
+This document provides a brief overview of the features supported by the 
+IPW2100 driver project.  The main project website, where the latest 
+development version of the driver can be found, is:
+
+	http://ipw2100.sourceforge.net
+
+There you can find the not only the latest releases, but also information about
+potential fixes and patches, as well as links to the development mailing list
+for the driver project.
+
+
+===========================
+1. Release 1.1.0 Current Supported Features
+---------------------------     
+- Managed (BSS) and Ad-Hoc (IBSS)
+- WEP (shared key and open)
+- Wireless Tools support 
+- 802.1x (tested with XSupplicant 1.0.1)
+
+Enabled (but not supported) features:
+- Monitor/RFMon mode
+- WPA/WPA2
+
+The distinction between officially supported and enabled is a reflection
+on the amount of validation and interoperability testing that has been
+performed on a given feature.
+
+
+===========================
+2. Command Line Parameters
+---------------------------     
+
+If the driver is built as a module, the following optional parameters are used
+by entering them on the command line with the modprobe command using this
+syntax:
+
+	modprobe ipw2100 [<option>=<VAL1><,VAL2>...]
+
+For example, to disable the radio on driver loading, enter:
+
+	modprobe ipw2100 disable=1
+
+The ipw2100 driver supports the following module parameters:
+
+Name		Value		Example:
+debug		0x0-0xffffffff	debug=1024
+mode		0,1,2		mode=1   /* AdHoc */
+channel		int		channel=3 /* Only valid in AdHoc or Monitor */
+associate	boolean		associate=0 /* Do NOT auto associate */
+disable		boolean		disable=1 /* Do not power the HW */
+
+
+===========================
+3. Sysfs Helper Files
+---------------------------     
+
+There are several ways to control the behavior of the driver.  Many of the 
+general capabilities are exposed through the Wireless Tools (iwconfig).  There
+are a few capabilities that are exposed through entries in the Linux Sysfs.
+
+
+----- Driver Level ------
+For the driver level files, look in /sys/bus/pci/drivers/ipw2100/
+
+  debug_level  
+	
+	This controls the same global as the 'debug' module parameter.  For 
+        information on the various debugging levels available, run the 'dvals'
+	script found in the driver source directory.
+
+	NOTE:  'debug_level' is only enabled if CONFIG_IPW2100_DEBUG is turn
+	       on.
+
+----- Device Level ------
+For the device level files look in
+	
+	/sys/bus/pci/drivers/ipw2100/{PCI-ID}/
+
+For example:
+	/sys/bus/pci/drivers/ipw2100/0000:02:01.0
+
+For the device level files, see /sys/bus/pci/drivers/ipw2100:
+
+  rf_kill
+	read - 
+	0 = RF kill not enabled (radio on)
+	1 = SW based RF kill active (radio off)
+	2 = HW based RF kill active (radio off)
+	3 = Both HW and SW RF kill active (radio off)
+	write -
+	0 = If SW based RF kill active, turn the radio back on
+	1 = If radio is on, activate SW based RF kill
+
+	NOTE: If you enable the SW based RF kill and then toggle the HW
+  	based RF kill from ON -> OFF -> ON, the radio will NOT come back on
+
+
+===========================
+4. Radio Kill Switch
+---------------------------
+Most laptops provide the ability for the user to physically disable the radio.
+Some vendors have implemented this as a physical switch that requires no
+software to turn the radio off and on.  On other laptops, however, the switch
+is controlled through a button being pressed and a software driver then making
+calls to turn the radio off and on.  This is referred to as a "software based
+RF kill switch"
+
+See the Sysfs helper file 'rf_kill' for determining the state of the RF switch
+on your system.
+
+
+===========================
+5. Dynamic Firmware
+---------------------------     
+As the firmware is licensed under a restricted use license, it can not be 
+included within the kernel sources.  To enable the IPW2100 you will need a 
+firmware image to load into the wireless NIC's processors.
+
+You can obtain these images from <http://ipw2100.sf.net/firmware.php>.
+
+See INSTALL for instructions on installing the firmware.
+
+
+===========================
+6. Power Management
+---------------------------     
+The IPW2100 supports the configuration of the Power Save Protocol 
+through a private wireless extension interface.  The IPW2100 supports 
+the following different modes:
+
+	off	No power management.  Radio is always on.
+	on	Automatic power management
+	1-5	Different levels of power management.  The higher the 
+		number the greater the power savings, but with an impact to 
+		packet latencies. 
+
+Power management works by powering down the radio after a certain 
+interval of time has passed where no packets are passed through the 
+radio.  Once powered down, the radio remains in that state for a given 
+period of time.  For higher power savings, the interval between last 
+packet processed to sleep is shorter and the sleep period is longer.
+
+When the radio is asleep, the access point sending data to the station 
+must buffer packets at the AP until the station wakes up and requests 
+any buffered packets.  If you have an AP that does not correctly support 
+the PSP protocol you may experience packet loss or very poor performance 
+while power management is enabled.  If this is the case, you will need 
+to try and find a firmware update for your AP, or disable power 
+management (via `iwconfig eth1 power off`)
+
+To configure the power level on the IPW2100 you use a combination of 
+iwconfig and iwpriv.  iwconfig is used to turn power management on, off, 
+and set it to auto.
+
+	iwconfig eth1 power off    Disables radio power down
+	iwconfig eth1 power on     Enables radio power management to 
+				   last set level (defaults to AUTO)
+	iwpriv eth1 set_power 0    Sets power level to AUTO and enables 
+				   power management if not previously 
+				   enabled.
+	iwpriv eth1 set_power 1-5  Set the power level as specified, 
+				   enabling power management if not 
+				   previously enabled.
+
+You can view the current power level setting via:
+	
+	iwpriv eth1 get_power
+
+It will return the current period or timeout that is configured as a string
+in the form of xxxx/yyyy (z) where xxxx is the timeout interval (amount of
+time after packet processing), yyyy is the period to sleep (amount of time to 
+wait before powering the radio and querying the access point for buffered
+packets), and z is the 'power level'.  If power management is turned off the
+xxxx/yyyy will be replaced with 'off' -- the level reported will be the active
+level if `iwconfig eth1 power on` is invoked.
+
+
+===========================
+7. Support
+---------------------------     
+
+For general development information and support,
+go to:
+	
+    http://ipw2100.sf.net/
+
+The ipw2100 1.1.0 driver and firmware can be downloaded from:  
+
+    http://support.intel.com
+
+For installation support on the ipw2100 1.1.0 driver on Linux kernels 
+2.6.8 or greater, email support is available from:  
+
+    http://supportmail.intel.com
+
+===========================
+8. License
+---------------------------     
+
+  Copyright(c) 2003 - 2005 Intel Corporation. All rights reserved.
+
+  This program is free software; you can redistribute it and/or modify it 
+  under the terms of the GNU General Public License (version 2) as 
+  published by the Free Software Foundation.
+  
+  This program is distributed in the hope that it will be useful, but WITHOUT 
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for 
+  more details.
+  
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc., 59 
+  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+  
+  The full GNU General Public License is included in this distribution in the
+  file called LICENSE.
+  
+  License Contact Information:
+  James P. Ketrenos <ipw2100-admin@linux.intel.com>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+

drivers/net/wireless/Kconfig

@@ -137,6 +137,59 @@ config PCMCIA_RAYCS
 comment "Wireless 802.11b ISA/PCI cards support"
 	depends on NET_RADIO && (ISA || PCI || PPC_PMAC || PCMCIA)
 
+config IPW2100
+	tristate "Intel PRO/Wireless 2100 Network Connection"
+	depends on NET_RADIO && PCI && IEEE80211
+	select FW_LOADER
+	---help---
+          A driver for the Intel PRO/Wireless 2100 Network 
+	  Connection 802.11b wireless network adapter.
+
+          See <file:Documentation/networking/README.ipw2100> for information on
+          the capabilities currently enabled in this driver and for tips
+          for debugging issues and problems.
+
+	  In order to use this driver, you will need a firmware image for it.
+          You can obtain the firmware from
+	  <http://ipw2100.sf.net/>.  Once you have the firmware image, you 
+	  will need to place it in /etc/firmware.
+
+          You will also very likely need the Wireless Tools in order to
+          configure your card:
+
+          <http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html>.
+ 
+          If you want to compile the driver as a module ( = code which can be
+          inserted in and remvoed from the running kernel whenever you want),
+          say M here and read <file:Documentation/modules.txt>.  The module
+          will be called ipw2100.ko.
+	
+config IPW2100_PROMISC
+        bool "Enable promiscuous mode"
+        depends on IPW2100
+        ---help---
+	  Enables promiscuous/monitor mode support for the ipw2100 driver.
+	  With this feature compiled into the driver, you can switch to 
+	  promiscuous mode via the Wireless Tool's Monitor mode.  While in this
+	  mode, no packets can be sent.
+
+config IPW_DEBUG
+	bool "Enable full debugging output in IPW2100 module."
+	depends on IPW2100
+	---help---
+	  This option will enable debug tracing output for the IPW2100.  
+
+	  This will result in the kernel module being ~60k larger.  You can 
+	  control which debug output is sent to the kernel log by setting the 
+	  value in 
+
+	  /sys/bus/pci/drivers/ipw2100/debug_level
+
+	  This entry will only exist if this option is enabled.
+
+	  If you are not trying to debug or develop the IPW2100 driver, you 
+	  most likely want to say N here.
+
 config AIRO
 	tristate "Cisco/Aironet 34X/35X/4500/4800 ISA and PCI cards"
 	depends on NET_RADIO && ISA && (PCI || BROKEN)

drivers/net/wireless/Makefile

@@ -2,6 +2,8 @@
 # Makefile for the Linux Wireless network device drivers.
 #
 
+obj-$(CONFIG_IPW2100) += ipw2100.o
+
 obj-$(CONFIG_STRIP) += strip.o
 obj-$(CONFIG_ARLAN) += arlan.o