File README.ubuntu added (mode: 100644) (index 0000000..bfad7dc) |
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======================================================================= |
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WLAN driver for cards using the HERMES II and HERMES II.5 chipset |
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HERMES II Card |
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PCMCIA Info: "Agere Systems" "Wireless PC Card Model 0110" |
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Manufacture ID: 0156,0003 |
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HERMES II.5 Card |
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PCMCIA Info: "Linksys" "WCF54G_Wireless-G_CompactFlash_Card" |
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Manufacture ID: 0156,0004 |
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Based on Agere Systems Linux LKM Wireless Driver Source Code, |
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Version 7.22; complies with Open Source BSD License. |
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======================================================================= |
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DESCRIPTION |
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The software is a modified version of wl_lkm_722_abg.tar.gz from the |
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Agere Systems website, addapted for Ubuntu 9.04. |
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Modified for kernel 2.6 by Henk de Groot <pe1dnn@amsat.org> |
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Based on 7.18 version by Andrey Borzenkov <arvidjaar@mail.ru> $Revision: 39 $ |
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INSTALLATION |
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Unpack in a new directory. |
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Open a terminal screen. |
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Change directory to the source directory |
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Type command |
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make |
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and wait until it is finshed. Now you have build the module |
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wlags49_h2_cs; this module is meant for a HERMES II card. |
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The driver is tested with a Thomson SpeedTouch 110 Wireless PC Card. |
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For the test Station mode was used with WEP. The driver is supposed |
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to support WAP and as accesspoint that is NOT tested. |
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If you have a card using the HERMES II.5 chip you have to make |
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changes to the Makefile and uncomment -DHERMES25. This will build |
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driver wlags49_h25_cs. |
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Note: You can determine the type with command "pccardctrl info" |
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MANIFID: 0156,0002 = HERMES - not supported by this driver |
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MANIFID: 0156,0003 = HERMES II (Wireless B) |
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MANIFID: 0156,0004 = HERMES II.5 (Wireless B/G) |
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After successful compile type command |
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sudo make install |
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to install the module. |
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Now the card should be recognized. It should be able to configure |
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and use the card with NetworkManager. Wpa_supplicant also works, as does |
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manual configuration using the iwconfig/iwlist programs. |
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Note: I only tested Station mode with WEP but if I didn't break anything |
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WPA and AP mode should also work; note however that WPA was experimental |
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in the original Agere driver! |
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Note: to compile as AP change the makefile and remove the line |
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-DSTA_ONLY \ |
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(or comment it, but in that case make sure to move it after all the |
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flags you want to use) |
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CHANGES |
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The HCF functions to control the card are virtually unchanged, the only |
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changes are meant to fix compiler warnings. The only real change is in |
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HCF_WAIT_WHILE which now has a udelay(2) added to give a small delay. |
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The linux driver files (wl_xxxx.c) are changed in the following ways: |
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- Addaptations of Andrey Borzenkov applied to 7.22 source |
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- Alterations to avoid most HCF_ASSERTs |
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-- Switching interrupts off and on in the HCF |
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-- Bugfixes, things that were apparently wrong like reporting link status |
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change which checked a variable that was not changed in HCF anymore. |
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-- Used on WEP but setting keys via SIOCSIWENCODEEXT was not supported |
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-- Recovery actions added |
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The major problem was the order in which calls can be made. The original |
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looks like a traditional UNIX driver. To call an "ioctl" function you |
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have to "open" the device first to get a handle and after "close" no |
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"ioctl" function can be called anymore. With the 2.6 driver this all |
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changed; the former ioctl functions are now called before "open" and |
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after "close", which was not expected. One of the problems was enable/ |
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disable of interrupts in the HCF. Interrupt handling starts at "open" |
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so if a former "ioctl" routine is called before "open" or after "close" |
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then nothing should be done with interrupt switching in the HCF. Once |
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this was solved most HCF_ASSERTS went away. |
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The last point, recovery actions added, needs some clarification. |
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Starting the card works most of the time, but unfortunately not always. |
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At a few times recovery code was added; when the card starts to |
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misbehave or the communication between the HCF and the card is |
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out of sync and the HCF enters DEFUNCT mode everything is reset and |
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reinitialized. Note, hcf.c contains a lot of documentation. It takes |
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some time but slowly some things become clear. Also some unresolved |
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issues are mentioned in hcf.c, so there are still unknown bugs. |
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The card problems are almost in all cases when starting up and before |
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the first association with an AP, once the card is in operation it |
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seems to stay that way; when debugging no HCF_ASSERTS appear anymore. |
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Note: some HCF_ASSERTS still appear, in a number of cases it is a real |
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error, for example at card removal the missing card is detected. |
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LICENSE |
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The Agere Systems license applies. This is why I include the original |
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README.wlags49. The instructions in that file are bogus now. I also |
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include the man page. Even though setting parameters on the module |
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does not work anymore but it provides some information about all the |
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settings. |
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I have no personal contact with Agere, but others have. Agere |
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agreed to make their software available under the BSD license. |
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This driver is based on the 7.22 version. |
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The following was mailed by Agere to Andrey Borzenkov about this: |
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--- Begin Message --- |
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* From: TJ <tj@xxxxxxxxxxx> |
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* Date: Mon, 05 Feb 2007 19:28:59 +0000 |
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Hi Andrey, |
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I've got some good news for you/us/the world of Hermes :) |
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I got a reply from the legal representative at Agere confirming that |
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their source-code is BSD licensed, and I've included the contents of the |
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email here. |
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I hope this re-assures you so that your excellent work on the drivers |
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can be made widely available for other hackers to work with. |
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Regards, |
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TJ. |
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--------- |
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On Mon, 2007-02-05 at 13:54 -0500, Pathare, Viren M (Viren) wrote: |
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"I would like to confirm that the two drivers; Linux LKM Wireless Driver |
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Source Code, Version 7.18 and Linux LKM Wireless Driver Source Code, |
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Version 7.22 comply with Open Source BSD License. Therefore the source |
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code can be distributed in unmodified or modified form consistent with |
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the terms of the license. |
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The Linux driver architecture was based on two modules, the MSF (Module |
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specific functions) and the HCF (Hardware Control Functions). Included |
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in the HCF is run-time firmware (binary format) which is downloaded into |
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the RAM of the Hermes 1/2/2.5 WMAC. |
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This hex coded firmware is not based on any open source software and |
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hence it is not subject to any Open Source License. The firmware was |
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developed by Agere and runs on the DISC processor embedded within the |
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Hermes 1/2/2.5 Wireless MAC devices. |
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Hope this helps. |
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Sincerely, |
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Viren Pathare |
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Intellectual Property Licensing Manager |
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Agere" |
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--- End Message --- |
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