![Dominik Brodowski](/assets/img/avatar_default.png)
dev_link_t * and client_handle_t both mean struct pcmcai_device * by now. Therefore, remove all such indirections. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
776 lines
29 KiB
C
776 lines
29 KiB
C
/*
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* Wavelan Pcmcia driver
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*
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* Jean II - HPLB '96
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*
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* Reorganisation and extension of the driver.
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*
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* This file contain all definition and declarations necessary for the
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* wavelan pcmcia driver. This file is a private header, so it should
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* be included only on wavelan_cs.c !!!
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*/
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#ifndef WAVELAN_CS_P_H
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#define WAVELAN_CS_P_H
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/************************** DOCUMENTATION **************************/
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/*
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* This driver provide a Linux interface to the Wavelan Pcmcia hardware
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* The Wavelan is a product of Lucent (http://www.wavelan.com/).
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* This division was formerly part of NCR and then AT&T.
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* Wavelan are also distributed by DEC (RoamAbout DS)...
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*
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* To know how to use this driver, read the PCMCIA HOWTO.
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* If you want to exploit the many other fonctionalities, look comments
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* in the code...
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*
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* This driver is the result of the effort of many peoples (see below).
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*/
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/* ------------------------ SPECIFIC NOTES ------------------------ */
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/*
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* Web page
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* --------
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* I try to maintain a web page with the Wireless LAN Howto at :
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* http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Wavelan.html
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*
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* SMP
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* ---
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* We now are SMP compliant (I eventually fixed the remaining bugs).
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* The driver has been tested on a dual P6-150 and survived my usual
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* set of torture tests.
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* Anyway, I spent enough time chasing interrupt re-entrancy during
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* errors or reconfigure, and I designed the locked/unlocked sections
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* of the driver with great care, and with the recent addition of
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* the spinlock (thanks to the new API), we should be quite close to
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* the truth.
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* The SMP/IRQ locking is quite coarse and conservative (i.e. not fast),
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* but better safe than sorry (especially at 2 Mb/s ;-).
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*
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* I have also looked into disabling only our interrupt on the card
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* (via HACR) instead of all interrupts in the processor (via cli),
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* so that other driver are not impacted, and it look like it's
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* possible, but it's very tricky to do right (full of races). As
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* the gain would be mostly for SMP systems, it can wait...
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*
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* Debugging and options
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* ---------------------
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* You will find below a set of '#define" allowing a very fine control
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* on the driver behaviour and the debug messages printed.
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* The main options are :
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* o WAVELAN_ROAMING, for the experimental roaming support.
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* o SET_PSA_CRC, to have your card correctly recognised by
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* an access point and the Point-to-Point diagnostic tool.
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* o USE_PSA_CONFIG, to read configuration from the PSA (EEprom)
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* (otherwise we always start afresh with some defaults)
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*
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* wavelan_cs.o is darn too big
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* -------------------------
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* That's true ! There is a very simple way to reduce the driver
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* object by 33% (yes !). Comment out the following line :
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* #include <linux/wireless.h>
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* Other compile options can also reduce the size of it...
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*
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* MAC address and hardware detection :
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* ----------------------------------
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* The detection code of the wavelan chech that the first 3
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* octets of the MAC address fit the company code. This type of
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* detection work well for AT&T cards (because the AT&T code is
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* hardcoded in wavelan_cs.h), but of course will fail for other
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* manufacturer.
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*
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* If you are sure that your card is derived from the wavelan,
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* here is the way to configure it :
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* 1) Get your MAC address
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* a) With your card utilities (wfreqsel, instconf, ...)
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* b) With the driver :
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* o compile the kernel with DEBUG_CONFIG_INFO enabled
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* o Boot and look the card messages
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* 2) Set your MAC code (3 octets) in MAC_ADDRESSES[][3] (wavelan_cs.h)
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* 3) Compile & verify
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* 4) Send me the MAC code - I will include it in the next version...
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*
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*/
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/* --------------------- WIRELESS EXTENSIONS --------------------- */
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/*
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* This driver is the first one to support "wireless extensions".
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* This set of extensions provide you some way to control the wireless
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* caracteristics of the hardware in a standard way and support for
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* applications for taking advantage of it (like Mobile IP).
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*
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* It might be a good idea as well to fetch the wireless tools to
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* configure the device and play a bit.
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*/
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/* ---------------------------- FILES ---------------------------- */
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/*
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* wavelan_cs.c : The actual code for the driver - C functions
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*
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* wavelan_cs.p.h : Private header : local types / vars for the driver
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*
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* wavelan_cs.h : Description of the hardware interface & structs
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*
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* i82593.h : Description if the Ethernet controller
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*/
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/* --------------------------- HISTORY --------------------------- */
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/*
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* The history of the Wavelan drivers is as complicated as history of
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* the Wavelan itself (NCR -> AT&T -> Lucent).
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*
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* All started with Anders Klemets <klemets@paul.rutgers.edu>,
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* writting a Wavelan ISA driver for the MACH microkernel. Girish
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* Welling <welling@paul.rutgers.edu> had also worked on it.
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* Keith Moore modify this for the Pcmcia hardware.
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*
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* Robert Morris <rtm@das.harvard.edu> port these two drivers to BSDI
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* and add specific Pcmcia support (there is currently no equivalent
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* of the PCMCIA package under BSD...).
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*
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* Jim Binkley <jrb@cs.pdx.edu> port both BSDI drivers to FreeBSD.
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*
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* Bruce Janson <bruce@cs.usyd.edu.au> port the BSDI ISA driver to Linux.
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*
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* Anthony D. Joseph <adj@lcs.mit.edu> started modify Bruce driver
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* (with help of the BSDI PCMCIA driver) for PCMCIA.
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* Yunzhou Li <yunzhou@strat.iol.unh.edu> finished is work.
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* Joe Finney <joe@comp.lancs.ac.uk> patched the driver to start
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* correctly 2.00 cards (2.4 GHz with frequency selection).
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* David Hinds <dahinds@users.sourceforge.net> integrated the whole in his
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* Pcmcia package (+ bug corrections).
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*
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* I (Jean Tourrilhes - jt@hplb.hpl.hp.com) then started to make some
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* patchs to the Pcmcia driver. After, I added code in the ISA driver
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* for Wireless Extensions and full support of frequency selection
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* cards. Now, I'm doing the same to the Pcmcia driver + some
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* reorganisation.
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* Loeke Brederveld <lbrederv@wavelan.com> from Lucent has given me
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* much needed informations on the Wavelan hardware.
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*/
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/* By the way : for the copyright & legal stuff :
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* Almost everybody wrote code under GNU or BSD license (or alike),
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* and want that their original copyright remain somewhere in the
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* code (for myself, I go with the GPL).
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* Nobody want to take responsibility for anything, except the fame...
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*/
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/* --------------------------- CREDITS --------------------------- */
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/*
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* Credits:
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* Special thanks to Jan Hoogendoorn of AT&T GIS Utrecht and
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* Loeke Brederveld of Lucent for providing extremely useful
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* information about WaveLAN PCMCIA hardware
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*
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* This driver is based upon several other drivers, in particular:
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* David Hinds' Linux driver for the PCMCIA 3c589 ethernet adapter
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* Bruce Janson's Linux driver for the AT-bus WaveLAN adapter
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* Anders Klemets' PCMCIA WaveLAN adapter driver
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* Robert Morris' BSDI driver for the PCMCIA WaveLAN adapter
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*
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* Additional Credits:
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*
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* This software was originally developed under Linux 1.2.3
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* (Slackware 2.0 distribution).
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* And then under Linux 2.0.x (Debian 1.1 -> 2.2 - pcmcia 2.8.18+)
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* with an HP OmniBook 4000 and then a 5500.
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*
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* It is based on other device drivers and information either written
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* or supplied by:
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* James Ashton (jaa101@syseng.anu.edu.au),
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* Ajay Bakre (bakre@paul.rutgers.edu),
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* Donald Becker (becker@super.org),
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* Jim Binkley <jrb@cs.pdx.edu>,
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* Loeke Brederveld <lbrederv@wavelan.com>,
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* Allan Creighton (allanc@cs.su.oz.au),
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* Brent Elphick <belphick@uwaterloo.ca>,
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* Joe Finney <joe@comp.lancs.ac.uk>,
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* Matthew Geier (matthew@cs.su.oz.au),
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* Remo di Giovanni (remo@cs.su.oz.au),
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* Mark Hagan (mhagan@wtcpost.daytonoh.NCR.COM),
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* David Hinds <dahinds@users.sourceforge.net>,
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* Jan Hoogendoorn (c/o marteijn@lucent.com),
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* Bruce Janson <bruce@cs.usyd.edu.au>,
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* Anthony D. Joseph <adj@lcs.mit.edu>,
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* Anders Klemets (klemets@paul.rutgers.edu),
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* Yunzhou Li <yunzhou@strat.iol.unh.edu>,
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* Marc Meertens (mmeertens@lucent.com),
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* Keith Moore,
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* Robert Morris (rtm@das.harvard.edu),
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* Ian Parkin (ian@cs.su.oz.au),
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* John Rosenberg (johnr@cs.su.oz.au),
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* George Rossi (george@phm.gov.au),
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* Arthur Scott (arthur@cs.su.oz.au),
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* Stanislav Sinyagin <stas@isf.ru>
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* Peter Storey,
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* Jean Tourrilhes <jt@hpl.hp.com>,
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* Girish Welling (welling@paul.rutgers.edu)
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* Clark Woodworth <clark@hiway1.exit109.com>
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* Yongguang Zhang <ygz@isl.hrl.hac.com>...
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*/
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/* ------------------------- IMPROVEMENTS ------------------------- */
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/*
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* I proudly present :
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*
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* Changes made in 2.8.22 :
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* ----------------------
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* - improved wv_set_multicast_list
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* - catch spurious interrupt
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* - correct release of the device
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*
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* Changes mades in release :
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* ------------------------
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* - Reorganisation of the code, function name change
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* - Creation of private header (wavelan_cs.h)
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* - Reorganised debug messages
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* - More comments, history, ...
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* - Configure earlier (in "insert" instead of "open")
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* and do things only once
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* - mmc_init : configure the PSA if not done
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* - mmc_init : 2.00 detection better code for 2.00 init
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* - better info at startup
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* - Correct a HUGE bug (volatile & uncalibrated busy loop)
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* in wv_82593_cmd => config speedup
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* - Stop receiving & power down on close (and power up on open)
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* use "ifconfig down" & "ifconfig up ; route add -net ..."
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* - Send packets : add watchdog instead of pooling
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* - Receive : check frame wrap around & try to recover some frames
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* - wavelan_set_multicast_list : avoid reset
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* - add wireless extensions (ioctl & get_wireless_stats)
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* get/set nwid/frequency on fly, info for /proc/net/wireless
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* - Suppress useless stuff from lp (net_local), but add link
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* - More inlines
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* - Lot of others minor details & cleanups
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*
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* Changes made in second release :
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* ------------------------------
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* - Optimise wv_85893_reconfig stuff, fix potential problems
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* - Change error values for ioctl
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* - Non blocking wv_ru_stop() + call wv_reset() in case of problems
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* - Remove development printk from wavelan_watchdog()
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* - Remove of the watchdog to wavelan_close instead of wavelan_release
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* fix potential problems...
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* - Start debugging suspend stuff (but it's still a bit weird)
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* - Debug & optimize dump header/packet in Rx & Tx (debug)
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* - Use "readb" and "writeb" to be kernel 2.1 compliant
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* - Better handling of bogus interrupts
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* - Wireless extension : SETSPY and GETSPY
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* - Remove old stuff (stats - for those needing it, just ask me...)
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* - Make wireless extensions optional
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*
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* Changes made in third release :
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* -----------------------------
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* - cleanups & typos
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* - modif wireless ext (spy -> only one pointer)
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* - new private ioctl to set/get quality & level threshold
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* - Init : correct default value of level threshold for pcmcia
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* - kill watchdog in hw_reset
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* - more 2.1 support (copy_to/from_user instead of memcpy_to/fromfs)
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* - Add message level (debug stuff in /var/adm/debug & errors not
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* displayed at console and still in /var/adm/messages)
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*
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* Changes made in fourth release :
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* ------------------------------
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* - multicast support (yes !) thanks to Yongguang Zhang.
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*
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* Changes made in fifth release (2.9.0) :
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* -------------------------------------
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* - Revisited multicast code (it was mostly wrong).
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* - protect code in wv_82593_reconfig with dev->tbusy (oups !)
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*
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* Changes made in sixth release (2.9.1a) :
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* --------------------------------------
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* - Change the detection code for multi manufacturer code support
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* - Correct bug (hang kernel) in init when we were "rejecting" a card
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*
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* Changes made in seventh release (2.9.1b) :
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* ----------------------------------------
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* - Update to wireless extensions changes
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* - Silly bug in card initial configuration (psa_conf_status)
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*
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* Changes made in eigth release :
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* -----------------------------
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* - Small bug in debug code (probably not the last one...)
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* - 1.2.13 support (thanks to Clark Woodworth)
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*
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* Changes made for release in 2.9.2b :
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* ----------------------------------
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* - Level threshold is now a standard wireless extension (version 4 !)
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* - modules parameters types for kernel > 2.1.17
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* - updated man page
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* - Others cleanup from David Hinds
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*
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* Changes made for release in 2.9.5 :
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* ---------------------------------
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* - byte count stats (courtesy of David Hinds)
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* - Remove dev_tint stuff (courtesy of David Hinds)
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* - Others cleanup from David Hinds
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* - Encryption setting from Brent Elphick (thanks a lot !)
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* - 'base' to 'u_long' for the Alpha (thanks to Stanislav Sinyagin)
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*
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* Changes made for release in 2.9.6 :
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* ---------------------------------
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* - fix bug : no longuer disable watchdog in case of bogus interrupt
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* - increase timeout in config code for picky hardware
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* - mask unused bits in status (Wireless Extensions)
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*
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* Changes integrated by Justin Seger <jseger@MIT.EDU> & David Hinds :
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* -----------------------------------------------------------------
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* - Roaming "hack" from Joe Finney <joe@comp.lancs.ac.uk>
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* - PSA CRC code from Bob Gray <rgray@bald.cs.dartmouth.edu>
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* - Better initialisation of the i82593 controller
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* from Joseph K. O'Sullivan <josullvn+@cs.cmu.edu>
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*
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* Changes made for release in 3.0.10 :
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* ----------------------------------
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* - Fix eject "hang" of the driver under 2.2.X :
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* o create wv_flush_stale_links()
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* o Rename wavelan_release to wv_pcmcia_release & move up
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* o move unregister_netdev to wavelan_detach()
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* o wavelan_release() no longer call wavelan_detach()
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* o Suppress "release" timer
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* o Other cleanups & fixes
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* - New MAC address in the probe
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* - Reorg PSA_CRC code (endian neutral & cleaner)
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* - Correct initialisation of the i82593 from Lucent manual
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* - Put back the watchdog, with larger timeout
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* - TRANSMIT_NO_CRC is a "normal" error, so recover from it
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* from Derrick J Brashear <shadow@dementia.org>
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* - Better handling of TX and RX normal failure conditions
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* - #ifdef out all the roaming code
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* - Add ESSID & "AP current address" ioctl stubs
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* - General cleanup of the code
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*
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* Changes made for release in 3.0.13 :
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* ----------------------------------
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* - Re-enable compilation of roaming code by default, but with
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* do_roaming = 0
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* - Nuke `nwid=nwid^ntohs(beacon->domain_id)' in wl_roam_gather
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* at the demand of John Carol Langford <jcl@gs176.sp.cs.cmu.edu>
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* - Introduced WAVELAN_ROAMING_EXT for incomplete ESSID stuff.
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*
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* Changes made for release in 3.0.15 :
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* ----------------------------------
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* - Change e-mail and web page addresses
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* - Watchdog timer is now correctly expressed in HZ, not in jiffies
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* - Add channel number to the list of frequencies in range
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* - Add the (short) list of bit-rates in range
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* - Developp a new sensitivity... (sens.value & sens.fixed)
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*
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* Changes made for release in 3.1.2 :
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* ---------------------------------
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* - Fix check for root permission (break instead of exit)
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* - New nwid & encoding setting (Wireless Extension 9)
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*
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* Changes made for release in 3.1.12 :
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* ----------------------------------
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* - reworked wv_82593_cmd to avoid using the IRQ handler and doing
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* ugly things with interrupts.
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* - Add IRQ protection in 82593_config/ru_start/ru_stop/watchdog
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* - Update to new network API (softnet - 2.3.43) :
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* o replace dev->tbusy (David + me)
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* o replace dev->tstart (David + me)
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* o remove dev->interrupt (David)
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* o add SMP locking via spinlock in splxx (me)
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* o add spinlock in interrupt handler (me)
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* o use kernel watchdog instead of ours (me)
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* o verify that all the changes make sense and work (me)
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* - Re-sync kernel/pcmcia versions (not much actually)
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* - A few other cleanups (David & me)...
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*
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* Changes made for release in 3.1.22 :
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* ----------------------------------
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* - Check that SMP works, remove annoying log message
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*
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* Changes made for release in 3.1.24 :
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* ----------------------------------
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* - Fix unfrequent card lockup when watchdog was reseting the hardware :
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* o control first busy loop in wv_82593_cmd()
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* o Extend spinlock protection in wv_hw_config()
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*
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* Changes made for release in 3.1.33 :
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* ----------------------------------
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* - Optional use new driver API for Wireless Extensions :
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* o got rid of wavelan_ioctl()
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* o use a bunch of iw_handler instead
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*
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* Changes made for release in 3.2.1 :
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* ---------------------------------
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* - Set dev->trans_start to avoid filling the logs
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* (and generating useless abort commands)
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* - Avoid deadlocks in mmc_out()/mmc_in()
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*
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* Wishes & dreams:
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* ----------------
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* - Cleanup and integrate the roaming code
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* (std debug, set DomainID, decay avg and co...)
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*/
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/***************************** INCLUDES *****************************/
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/* Linux headers that we need */
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/sched.h>
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#include <linux/ptrace.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/timer.h>
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#include <linux/interrupt.h>
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#include <linux/spinlock.h>
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#include <linux/in.h>
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#include <linux/delay.h>
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#include <linux/bitops.h>
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#include <asm/uaccess.h>
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#include <asm/io.h>
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#include <asm/system.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/if_arp.h>
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#include <linux/ioport.h>
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#include <linux/fcntl.h>
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#include <linux/ethtool.h>
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#include <linux/wireless.h> /* Wireless extensions */
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#include <net/iw_handler.h> /* New driver API */
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/* Pcmcia headers that we need */
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#include <pcmcia/cs_types.h>
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#include <pcmcia/cs.h>
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#include <pcmcia/cistpl.h>
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#include <pcmcia/cisreg.h>
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#include <pcmcia/ds.h>
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/* Wavelan declarations */
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#include "i82593.h" /* Definitions for the Intel chip */
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#include "wavelan_cs.h" /* Others bits of the hardware */
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/************************** DRIVER OPTIONS **************************/
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/*
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* `#define' or `#undef' the following constant to change the behaviour
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* of the driver...
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*/
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#define WAVELAN_ROAMING /* Include experimental roaming code */
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#undef WAVELAN_ROAMING_EXT /* Enable roaming wireless extensions */
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#undef SET_PSA_CRC /* Set the CRC in PSA (slower) */
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#define USE_PSA_CONFIG /* Use info from the PSA */
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#undef STRUCT_CHECK /* Verify padding of structures */
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#undef EEPROM_IS_PROTECTED /* Doesn't seem to be necessary */
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#define MULTICAST_AVOID /* Avoid extra multicast (I'm sceptical) */
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#undef SET_MAC_ADDRESS /* Experimental */
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/* Warning : these stuff will slow down the driver... */
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#define WIRELESS_SPY /* Enable spying addresses */
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#undef HISTOGRAM /* Enable histogram of sig level... */
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/****************************** DEBUG ******************************/
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#undef DEBUG_MODULE_TRACE /* Module insertion/removal */
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#undef DEBUG_CALLBACK_TRACE /* Calls made by Linux */
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#undef DEBUG_INTERRUPT_TRACE /* Calls to handler */
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#undef DEBUG_INTERRUPT_INFO /* type of interrupt & so on */
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#define DEBUG_INTERRUPT_ERROR /* problems */
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#undef DEBUG_CONFIG_TRACE /* Trace the config functions */
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#undef DEBUG_CONFIG_INFO /* What's going on... */
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#define DEBUG_CONFIG_ERRORS /* Errors on configuration */
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#undef DEBUG_TX_TRACE /* Transmission calls */
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#undef DEBUG_TX_INFO /* Header of the transmitted packet */
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#undef DEBUG_TX_FAIL /* Normal failure conditions */
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#define DEBUG_TX_ERROR /* Unexpected conditions */
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#undef DEBUG_RX_TRACE /* Transmission calls */
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#undef DEBUG_RX_INFO /* Header of the transmitted packet */
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#undef DEBUG_RX_FAIL /* Normal failure conditions */
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#define DEBUG_RX_ERROR /* Unexpected conditions */
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#undef DEBUG_PACKET_DUMP /* Dump packet on the screen */
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#undef DEBUG_IOCTL_TRACE /* Misc call by Linux */
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#undef DEBUG_IOCTL_INFO /* Various debug info */
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#define DEBUG_IOCTL_ERROR /* What's going wrong */
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#define DEBUG_BASIC_SHOW /* Show basic startup info */
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#undef DEBUG_VERSION_SHOW /* Print version info */
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#undef DEBUG_PSA_SHOW /* Dump psa to screen */
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#undef DEBUG_MMC_SHOW /* Dump mmc to screen */
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#undef DEBUG_SHOW_UNUSED /* Show also unused fields */
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#undef DEBUG_I82593_SHOW /* Show i82593 status */
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#undef DEBUG_DEVICE_SHOW /* Show device parameters */
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/************************ CONSTANTS & MACROS ************************/
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#ifdef DEBUG_VERSION_SHOW
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static const char *version = "wavelan_cs.c : v24 (SMP + wireless extensions) 11/1/02\n";
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#endif
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/* Watchdog temporisation */
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#define WATCHDOG_JIFFIES (256*HZ/100)
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/* Fix a bug in some old wireless extension definitions */
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#ifndef IW_ESSID_MAX_SIZE
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#define IW_ESSID_MAX_SIZE 32
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#endif
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/* ------------------------ PRIVATE IOCTL ------------------------ */
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#define SIOCSIPQTHR SIOCIWFIRSTPRIV /* Set quality threshold */
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#define SIOCGIPQTHR SIOCIWFIRSTPRIV + 1 /* Get quality threshold */
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#define SIOCSIPROAM SIOCIWFIRSTPRIV + 2 /* Set roaming state */
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#define SIOCGIPROAM SIOCIWFIRSTPRIV + 3 /* Get roaming state */
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#define SIOCSIPHISTO SIOCIWFIRSTPRIV + 4 /* Set histogram ranges */
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#define SIOCGIPHISTO SIOCIWFIRSTPRIV + 5 /* Get histogram values */
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/*************************** WaveLAN Roaming **************************/
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#ifdef WAVELAN_ROAMING /* Conditional compile, see above in options */
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#define WAVELAN_ROAMING_DEBUG 0 /* 1 = Trace of handover decisions */
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/* 2 = Info on each beacon rcvd... */
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#define MAX_WAVEPOINTS 7 /* Max visible at one time */
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#define WAVEPOINT_HISTORY 5 /* SNR sample history slow search */
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#define WAVEPOINT_FAST_HISTORY 2 /* SNR sample history fast search */
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#define SEARCH_THRESH_LOW 10 /* SNR to enter cell search */
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#define SEARCH_THRESH_HIGH 13 /* SNR to leave cell search */
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#define WAVELAN_ROAMING_DELTA 1 /* Hysteresis value (+/- SNR) */
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#define CELL_TIMEOUT 2*HZ /* in jiffies */
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#define FAST_CELL_SEARCH 1 /* Boolean values... */
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#define NWID_PROMISC 1 /* for code clarity. */
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typedef struct wavepoint_beacon
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{
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unsigned char dsap, /* Unused */
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ssap, /* Unused */
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ctrl, /* Unused */
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O,U,I, /* Unused */
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spec_id1, /* Unused */
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spec_id2, /* Unused */
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pdu_type, /* Unused */
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seq; /* WavePoint beacon sequence number */
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unsigned short domain_id, /* WavePoint Domain ID */
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nwid; /* WavePoint NWID */
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} wavepoint_beacon;
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typedef struct wavepoint_history
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{
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unsigned short nwid; /* WavePoint's NWID */
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int average_slow; /* SNR running average */
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int average_fast; /* SNR running average */
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unsigned char sigqual[WAVEPOINT_HISTORY]; /* Ringbuffer of recent SNR's */
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unsigned char qualptr; /* Index into ringbuffer */
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unsigned char last_seq; /* Last seq. no seen for WavePoint */
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struct wavepoint_history *next; /* Next WavePoint in table */
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struct wavepoint_history *prev; /* Previous WavePoint in table */
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unsigned long last_seen; /* Time of last beacon recvd, jiffies */
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} wavepoint_history;
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struct wavepoint_table
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{
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wavepoint_history *head; /* Start of ringbuffer */
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int num_wavepoints; /* No. of WavePoints visible */
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unsigned char locked; /* Table lock */
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};
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#endif /* WAVELAN_ROAMING */
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/****************************** TYPES ******************************/
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/* Shortcuts */
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typedef struct net_device_stats en_stats;
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typedef struct iw_statistics iw_stats;
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typedef struct iw_quality iw_qual;
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typedef struct iw_freq iw_freq;
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typedef struct net_local net_local;
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typedef struct timer_list timer_list;
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/* Basic types */
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typedef u_char mac_addr[WAVELAN_ADDR_SIZE]; /* Hardware address */
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/*
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* Static specific data for the interface.
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*
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* For each network interface, Linux keep data in two structure. "device"
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* keep the generic data (same format for everybody) and "net_local" keep
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* the additional specific data.
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* Note that some of this specific data is in fact generic (en_stats, for
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* example).
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*/
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struct net_local
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{
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dev_node_t node; /* ???? What is this stuff ???? */
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struct net_device * dev; /* Reverse link... */
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spinlock_t spinlock; /* Serialize access to the hardware (SMP) */
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struct pcmcia_device * link; /* pcmcia structure */
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en_stats stats; /* Ethernet interface statistics */
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int nresets; /* Number of hw resets */
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u_char configured; /* If it is configured */
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u_char reconfig_82593; /* Need to reconfigure the controller */
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u_char promiscuous; /* Promiscuous mode */
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u_char allmulticast; /* All Multicast mode */
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int mc_count; /* Number of multicast addresses */
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int stop; /* Current i82593 Stop Hit Register */
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int rfp; /* Last DMA machine receive pointer */
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int overrunning; /* Receiver overrun flag */
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iw_stats wstats; /* Wireless specific stats */
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struct iw_spy_data spy_data;
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struct iw_public_data wireless_data;
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#ifdef HISTOGRAM
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int his_number; /* Number of intervals */
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u_char his_range[16]; /* Boundaries of interval ]n-1; n] */
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u_long his_sum[16]; /* Sum in interval */
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#endif /* HISTOGRAM */
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#ifdef WAVELAN_ROAMING
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u_long domain_id; /* Domain ID we lock on for roaming */
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int filter_domains; /* Check Domain ID of beacon found */
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struct wavepoint_table wavepoint_table; /* Table of visible WavePoints*/
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wavepoint_history * curr_point; /* Current wavepoint */
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int cell_search; /* Searching for new cell? */
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struct timer_list cell_timer; /* Garbage collection */
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#endif /* WAVELAN_ROAMING */
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void __iomem *mem;
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};
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/* ----------------- MODEM MANAGEMENT SUBROUTINES ----------------- */
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static inline u_char /* data */
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hasr_read(u_long); /* Read the host interface : base address */
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static inline void
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hacr_write(u_long, /* Write to host interface : base address */
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u_char), /* data */
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hacr_write_slow(u_long,
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u_char);
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static void
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psa_read(struct net_device *, /* Read the Parameter Storage Area */
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int, /* offset in PSA */
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u_char *, /* buffer to fill */
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int), /* size to read */
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psa_write(struct net_device *, /* Write to the PSA */
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int, /* Offset in psa */
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u_char *, /* Buffer in memory */
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int); /* Length of buffer */
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static inline void
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mmc_out(u_long, /* Write 1 byte to the Modem Manag Control */
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u_short,
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u_char),
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mmc_write(u_long, /* Write n bytes to the MMC */
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u_char,
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u_char *,
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int);
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static inline u_char /* Read 1 byte from the MMC */
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mmc_in(u_long,
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u_short);
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static inline void
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mmc_read(u_long, /* Read n bytes from the MMC */
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u_char,
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u_char *,
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int),
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fee_wait(u_long, /* Wait for frequency EEprom : base address */
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int, /* Base delay to wait for */
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int); /* Number of time to wait */
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static void
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fee_read(u_long, /* Read the frequency EEprom : base address */
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u_short, /* destination offset */
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u_short *, /* data buffer */
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int); /* number of registers */
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/* ---------------------- I82593 SUBROUTINES ----------------------- */
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static int
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wv_82593_cmd(struct net_device *, /* synchronously send a command to i82593 */
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char *,
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int,
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int);
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static inline int
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wv_diag(struct net_device *); /* Diagnostique the i82593 */
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static int
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read_ringbuf(struct net_device *, /* Read a receive buffer */
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int,
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char *,
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int);
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static inline void
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wv_82593_reconfig(struct net_device *); /* Reconfigure the controller */
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/* ------------------- DEBUG & INFO SUBROUTINES ------------------- */
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static inline void
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wv_init_info(struct net_device *); /* display startup info */
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/* ------------------- IOCTL, STATS & RECONFIG ------------------- */
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static en_stats *
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wavelan_get_stats(struct net_device *); /* Give stats /proc/net/dev */
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static iw_stats *
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wavelan_get_wireless_stats(struct net_device *);
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/* ----------------------- PACKET RECEPTION ----------------------- */
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static inline int
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wv_start_of_frame(struct net_device *, /* Seek beggining of current frame */
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int, /* end of frame */
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int); /* start of buffer */
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static inline void
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wv_packet_read(struct net_device *, /* Read a packet from a frame */
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int,
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int),
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wv_packet_rcv(struct net_device *); /* Read all packets waiting */
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/* --------------------- PACKET TRANSMISSION --------------------- */
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static inline void
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wv_packet_write(struct net_device *, /* Write a packet to the Tx buffer */
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void *,
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short);
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static int
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wavelan_packet_xmit(struct sk_buff *, /* Send a packet */
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struct net_device *);
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/* -------------------- HARDWARE CONFIGURATION -------------------- */
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static inline int
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wv_mmc_init(struct net_device *); /* Initialize the modem */
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static int
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wv_ru_stop(struct net_device *), /* Stop the i82593 receiver unit */
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wv_ru_start(struct net_device *); /* Start the i82593 receiver unit */
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static int
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wv_82593_config(struct net_device *); /* Configure the i82593 */
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static inline int
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wv_pcmcia_reset(struct net_device *); /* Reset the pcmcia interface */
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static int
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wv_hw_config(struct net_device *); /* Reset & configure the whole hardware */
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static inline void
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wv_hw_reset(struct net_device *); /* Same, + start receiver unit */
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static inline int
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wv_pcmcia_config(struct pcmcia_device *); /* Configure the pcmcia interface */
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static void
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wv_pcmcia_release(struct pcmcia_device *);/* Remove a device */
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/* ---------------------- INTERRUPT HANDLING ---------------------- */
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static irqreturn_t
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wavelan_interrupt(int, /* Interrupt handler */
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void *,
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struct pt_regs *);
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static void
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wavelan_watchdog(struct net_device *); /* Transmission watchdog */
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/* ------------------- CONFIGURATION CALLBACKS ------------------- */
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static int
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wavelan_open(struct net_device *), /* Open the device */
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wavelan_close(struct net_device *); /* Close the device */
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static void
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wavelan_detach(struct pcmcia_device *p_dev); /* Destroy a removed device */
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/**************************** VARIABLES ****************************/
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/*
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* Parameters that can be set with 'insmod'
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* The exact syntax is 'insmod wavelan_cs.o <var>=<value>'
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*/
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/* Shared memory speed, in ns */
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static int mem_speed = 0;
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/* New module interface */
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module_param(mem_speed, int, 0);
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#ifdef WAVELAN_ROAMING /* Conditional compile, see above in options */
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/* Enable roaming mode ? No ! Please keep this to 0 */
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static int do_roaming = 0;
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module_param(do_roaming, bool, 0);
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#endif /* WAVELAN_ROAMING */
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MODULE_LICENSE("GPL");
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#endif /* WAVELAN_CS_P_H */
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