705 lines
26 KiB
C
705 lines
26 KiB
C
/*
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* WaveLAN ISA 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 contains all definitions and declarations necessary for the
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* WaveLAN ISA driver. This file is a private header, so it should
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* be included only in wavelan.c!
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*/
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#ifndef WAVELAN_P_H
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#define WAVELAN_P_H
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/************************** DOCUMENTATION ***************************/
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/*
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* This driver provides a Linux interface to the WaveLAN ISA 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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* WaveLANs are also distributed by DEC (RoamAbout DS) and Digital Ocean.
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*
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* To learn how to use this driver, read the NET3 HOWTO.
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* If you want to exploit the many other functionalities, read the 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 people (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 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.o is too darned 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%! 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 for the WaveLAN checks that the first three
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* octets of the MAC address fit the company code. This type of
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* detection works well for AT&T cards (because the AT&T code is
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* hardcoded in wavelan.h), but of course will fail for other
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* manufacturers.
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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, etc.)
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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.h)
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* 3) Compile and 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 to support "wireless extensions".
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* This set of extensions provides a standard way to control the wireless
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* characteristics of the hardware. Applications such as mobile IP may
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* take advantage of it.
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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.c: actual code for the driver: C functions
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*
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* wavelan.p.h: private header: local types and variables for driver
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*
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* wavelan.h: description of the hardware interface and structs
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*
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* i82586.h: description of the Ethernet controller
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*/
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/* --------------------------- HISTORY --------------------------- */
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/*
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* This is based on information in the drivers' headers. It may not be
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* accurate, and I guarantee only my best effort.
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*
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* The history of the WaveLAN drivers is as complicated as the history of
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* the WaveLAN itself (NCR -> AT&T -> Lucent).
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*
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* It all started with Anders Klemets <klemets@paul.rutgers.edu>
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* writing 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 modified this for the PCMCIA hardware.
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*
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* Robert Morris <rtm@das.harvard.edu> ported these two drivers to BSDI
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* and added 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> ported both BSDI drivers to FreeBSD.
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*
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* Bruce Janson <bruce@cs.usyd.edu.au> ported the BSDI ISA driver to Linux.
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*
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* Anthony D. Joseph <adj@lcs.mit.edu> started to modify Bruce's 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 this work.
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* Joe Finney <joe@comp.lancs.ac.uk> patched the driver to start
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* 2.00 cards correctly (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 (and 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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* patches to the PCMCIA driver. Later, 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. Then, I did the same to the PCMCIA driver, and did some
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* reorganisation. Finally, I came back to the ISA driver to
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* upgrade it at the same level as the PCMCIA one and reorganise
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* the code.
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* Loeke Brederveld <lbrederv@wavelan.com> from Lucent has given me
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* much needed information on the WaveLAN hardware.
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*/
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/* The original copyrights and literature mention others' names and
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* credits. I don't know what their part in this development was.
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*/
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/* By the way, for the copyright and legal stuff:
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* almost everybody wrote code under the GNU or BSD license (or similar),
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* and want their original copyright to remain somewhere in the
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* code (for myself, I go with the GPL).
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* Nobody wants 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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* This software was developed as a component of the
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* Linux operating system.
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* It is based on other device drivers and information
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* either written or supplied by:
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* Ajay Bakre <bakre@paul.rutgers.edu>,
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* Donald Becker <becker@cesdis.gsfc.nasa.gov>,
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* Loeke Brederveld <Loeke.Brederveld@Utrecht.NCR.com>,
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* Brent Elphick <belphick@uwaterloo.ca>,
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* Anders Klemets <klemets@it.kth.se>,
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* Vladimir V. Kolpakov <w@stier.koenig.ru>,
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* Marc Meertens <Marc.Meertens@Utrecht.NCR.com>,
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* Pauline Middelink <middelin@polyware.iaf.nl>,
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* Robert Morris <rtm@das.harvard.edu>,
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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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* Thanks go also to:
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* James Ashton <jaa101@syseng.anu.edu.au>,
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* Alan Cox <alan@redhat.com>,
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* Allan Creighton <allanc@cs.usyd.edu.au>,
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* Matthew Geier <matthew@cs.usyd.edu.au>,
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* Remo di Giovanni <remo@cs.usyd.edu.au>,
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* Eckhard Grah <grah@wrcs1.urz.uni-wuppertal.de>,
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* Vipul Gupta <vgupta@cs.binghamton.edu>,
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* Mark Hagan <mhagan@wtcpost.daytonoh.NCR.COM>,
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* Tim Nicholson <tim@cs.usyd.edu.au>,
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* Ian Parkin <ian@cs.usyd.edu.au>,
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* John Rosenberg <johnr@cs.usyd.edu.au>,
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* George Rossi <george@phm.gov.au>,
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* Arthur Scott <arthur@cs.usyd.edu.au>,
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* Stanislav Sinyagin <stas@isf.ru>
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* and Peter Storey for their assistance and advice.
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*
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* Additional Credits:
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*
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* My development has been done initially under Debian 1.1 (Linux 2.0.x)
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* and now under Debian 2.2, initially with an HP Vectra XP/60, and now
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* an HP Vectra XP/90.
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*
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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 first pre-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.p.h)
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* - reorganised debug messages
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* - more comments, history, etc.
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* - mmc_init: configure the PSA if not done
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* - mmc_init: correct default value of level threshold for PCMCIA
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* - mmc_init: 2.00 detection better code for 2.00 initialization
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* - better info at startup
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* - IRQ setting (note: this setting is permanent)
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* - watchdog: change strategy (and solve module removal problems)
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* - add wireless extensions (ioctl and get_wireless_stats)
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* get/set nwid/frequency on fly, info for /proc/net/wireless
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* - more wireless extensions: SETSPY and GETSPY
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* - make wireless extensions optional
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* - private ioctl to set/get quality and level threshold, histogram
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* - remove /proc/net/wavelan
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* - suppress useless stuff from lp (net_local)
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* - kernel 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 and errors not
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* displayed at console and still in /var/adm/messages)
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* - multi device support
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* - start fixing the probe (init code)
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* - more inlines
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* - man page
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* - many other minor details and cleanups
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*
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* Changes made in second pre-release:
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* -----------------------------------
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* - clean up init code (probe and module init)
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* - better multiple device support (module)
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* - name assignment (module)
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*
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* Changes made in third pre-release:
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* ----------------------------------
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* - be more conservative on timers
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* - preliminary support for multicast (I still lack some details)
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*
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* Changes made in fourth pre-release:
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* -----------------------------------
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* - multicast (revisited and finished)
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* - avoid reset in set_multicast_list (a really big hack)
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* if somebody could apply this code for other i82586 based drivers
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* - share onboard memory 75% RU and 25% CU (instead of 50/50)
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*
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* Changes made for release in 2.1.15:
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* -----------------------------------
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* - change the detection code for multi manufacturer code support
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*
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* Changes made for release in 2.1.17:
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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 for release in 2.1.27 & 2.0.30:
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* --------------------------------------------
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* - small bug in debug code (probably not the last one...)
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* - remove extern keyword for wavelan_probe()
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* - level threshold is now a standard wireless extension (version 4 !)
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* - modules parameters types (new module interface)
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*
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* Changes made for release in 2.1.36:
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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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* - encryption setting from Brent Elphick (thanks a lot!)
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* - 'ioaddr' to 'u_long' for the Alpha (thanks to Stanislav Sinyagin)
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*
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* Other changes (not by me) :
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* -------------------------
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* - Spelling and gramar "rectification".
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*
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* Changes made for release in 2.0.37 & 2.2.2 :
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* ------------------------------------------
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* - Correct status in /proc/net/wireless
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* - Set PSA CRC to make PtP diagnostic tool happy (Bob Gray)
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* - Module init code don't fail if we found at least one card in
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* the address list (Karlis Peisenieks)
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* - Missing parenthesis (Christopher Peterson)
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* - Correct i82586 configuration parameters
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* - Encryption initialisation bug (Robert McCormack)
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* - New mac addresses detected in the probe
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* - Increase watchdog for busy environments
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*
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* Changes made for release in 2.0.38 & 2.2.7 :
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* ------------------------------------------
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* - Correct the reception logic to better report errors and avoid
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* sending bogus packet up the stack
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* - Delay RU config to avoid corrupting first received packet
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* - Change config completion code (to actually check something)
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* - Avoid reading out of bound in skbuf to transmit
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* - Rectify a lot of (useless) debugging code
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* - Change the way to `#ifdef SET_PSA_CRC'
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*
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* Changes made for release in 2.2.11 & 2.3.13 :
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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 2.2.14 & 2.3.23 :
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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 2.3.49 :
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* ----------------------------------
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* - Indentation reformating (Alan)
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* - Update to new network API (softnet - 2.3.43) :
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* o replace dev->tbusy (Alan)
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* o replace dev->tstart (Alan)
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* o remove dev->interrupt (Alan)
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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 increase watchdog timeout (kernel is more sensitive) (me)
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* o verify that all the changes make sense and work (me)
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* - Fixup a potential gotcha when reconfiguring and thighten a bit
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* the interactions with Tx queue.
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*
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* Changes made for release in 2.4.0 :
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* ---------------------------------
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* - Fix spinlock stupid bugs that I left in. The driver is now SMP
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* compliant and doesn't lockup at startup.
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*
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* Changes made for release in 2.5.2 :
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* ---------------------------------
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* - 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 2.5.35 :
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* ----------------------------------
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* - Set dev->trans_start to avoid filling the logs
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* - Handle better spurious/bogus interrupt
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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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* - roaming (see Pcmcia driver)
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*/
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/***************************** INCLUDES *****************************/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/types.h>
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#include <linux/fcntl.h>
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#include <linux/interrupt.h>
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#include <linux/stat.h>
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#include <linux/ptrace.h>
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#include <linux/ioport.h>
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#include <linux/in.h>
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#include <linux/string.h>
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#include <linux/delay.h>
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#include <linux/bitops.h>
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#include <asm/system.h>
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#include <asm/io.h>
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#include <asm/dma.h>
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#include <asm/uaccess.h>
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#include <linux/errno.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/slab.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/wireless.h> /* Wireless extensions */
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#include <net/iw_handler.h> /* Wireless handlers */
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/* WaveLAN declarations */
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#include "i82586.h"
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#include "wavelan.h"
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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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#undef SET_PSA_CRC /* Calculate and set the CRC on 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: this 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 signal 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 and 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_ERROR /* 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 received 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 if defined to 32. */
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#undef DEBUG_IOCTL_TRACE /* misc. call by Linux */
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#undef DEBUG_IOCTL_INFO /* various debugging 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 unused fields too. */
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#undef DEBUG_I82586_SHOW /* Show i82586 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.c : v24 (SMP + wireless extensions) 11/12/01\n";
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#endif
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/* Watchdog temporisation */
|
|
#define WATCHDOG_JIFFIES (512*HZ/100)
|
|
|
|
/* ------------------------ PRIVATE IOCTL ------------------------ */
|
|
|
|
#define SIOCSIPQTHR SIOCIWFIRSTPRIV /* Set quality threshold */
|
|
#define SIOCGIPQTHR SIOCIWFIRSTPRIV + 1 /* Get quality threshold */
|
|
|
|
#define SIOCSIPHISTO SIOCIWFIRSTPRIV + 2 /* Set histogram ranges */
|
|
#define SIOCGIPHISTO SIOCIWFIRSTPRIV + 3 /* Get histogram values */
|
|
|
|
/****************************** TYPES ******************************/
|
|
|
|
/* Shortcuts */
|
|
typedef struct net_device_stats en_stats;
|
|
typedef struct iw_statistics iw_stats;
|
|
typedef struct iw_quality iw_qual;
|
|
typedef struct iw_freq iw_freq;
|
|
typedef struct net_local net_local;
|
|
typedef struct timer_list timer_list;
|
|
|
|
/* Basic types */
|
|
typedef u_char mac_addr[WAVELAN_ADDR_SIZE]; /* Hardware address */
|
|
|
|
/*
|
|
* Static specific data for the interface.
|
|
*
|
|
* For each network interface, Linux keeps data in two structures: "device"
|
|
* keeps the generic data (same format for everybody) and "net_local" keeps
|
|
* additional specific data.
|
|
* Note that some of this specific data is in fact generic (en_stats, for
|
|
* example).
|
|
*/
|
|
struct net_local
|
|
{
|
|
net_local * next; /* linked list of the devices */
|
|
struct net_device * dev; /* reverse link */
|
|
spinlock_t spinlock; /* Serialize access to the hardware (SMP) */
|
|
en_stats stats; /* Ethernet interface statistics */
|
|
int nresets; /* number of hardware resets */
|
|
u_char reconfig_82586; /* We need to reconfigure the controller. */
|
|
u_char promiscuous; /* promiscuous mode */
|
|
int mc_count; /* number of multicast addresses */
|
|
u_short hacr; /* current host interface state */
|
|
|
|
int tx_n_in_use;
|
|
u_short rx_head;
|
|
u_short rx_last;
|
|
u_short tx_first_free;
|
|
u_short tx_first_in_use;
|
|
|
|
iw_stats wstats; /* Wireless-specific statistics */
|
|
|
|
struct iw_spy_data spy_data;
|
|
struct iw_public_data wireless_data;
|
|
|
|
#ifdef HISTOGRAM
|
|
int his_number; /* number of intervals */
|
|
u_char his_range[16]; /* boundaries of interval ]n-1; n] */
|
|
u_long his_sum[16]; /* sum in interval */
|
|
#endif /* HISTOGRAM */
|
|
};
|
|
|
|
/**************************** PROTOTYPES ****************************/
|
|
|
|
/* ----------------------- MISC. SUBROUTINES ------------------------ */
|
|
static u_char
|
|
wv_irq_to_psa(int);
|
|
static int
|
|
wv_psa_to_irq(u_char);
|
|
/* ------------------- HOST ADAPTER SUBROUTINES ------------------- */
|
|
static inline u_short /* data */
|
|
hasr_read(u_long); /* Read the host interface: base address */
|
|
static inline void
|
|
hacr_write(u_long, /* Write to host interface: base address */
|
|
u_short), /* data */
|
|
hacr_write_slow(u_long,
|
|
u_short),
|
|
set_chan_attn(u_long, /* ioaddr */
|
|
u_short), /* hacr */
|
|
wv_hacr_reset(u_long), /* ioaddr */
|
|
wv_16_off(u_long, /* ioaddr */
|
|
u_short), /* hacr */
|
|
wv_16_on(u_long, /* ioaddr */
|
|
u_short), /* hacr */
|
|
wv_ints_off(struct net_device *),
|
|
wv_ints_on(struct net_device *);
|
|
/* ----------------- MODEM MANAGEMENT SUBROUTINES ----------------- */
|
|
static void
|
|
psa_read(u_long, /* Read the Parameter Storage Area. */
|
|
u_short, /* hacr */
|
|
int, /* offset in PSA */
|
|
u_char *, /* buffer to fill */
|
|
int), /* size to read */
|
|
psa_write(u_long, /* Write to the PSA. */
|
|
u_short, /* hacr */
|
|
int, /* offset in PSA */
|
|
u_char *, /* buffer in memory */
|
|
int); /* length of buffer */
|
|
static inline void
|
|
mmc_out(u_long, /* Write 1 byte to the Modem Manag Control. */
|
|
u_short,
|
|
u_char),
|
|
mmc_write(u_long, /* Write n bytes to the MMC. */
|
|
u_char,
|
|
u_char *,
|
|
int);
|
|
static inline u_char /* Read 1 byte from the MMC. */
|
|
mmc_in(u_long,
|
|
u_short);
|
|
static inline void
|
|
mmc_read(u_long, /* Read n bytes from the MMC. */
|
|
u_char,
|
|
u_char *,
|
|
int),
|
|
fee_wait(u_long, /* Wait for frequency EEPROM: base address */
|
|
int, /* base delay to wait for */
|
|
int); /* time to wait */
|
|
static void
|
|
fee_read(u_long, /* Read the frequency EEPROM: base address */
|
|
u_short, /* destination offset */
|
|
u_short *, /* data buffer */
|
|
int); /* number of registers */
|
|
/* ---------------------- I82586 SUBROUTINES ----------------------- */
|
|
static /*inline*/ void
|
|
obram_read(u_long, /* ioaddr */
|
|
u_short, /* o */
|
|
u_char *, /* b */
|
|
int); /* n */
|
|
static inline void
|
|
obram_write(u_long, /* ioaddr */
|
|
u_short, /* o */
|
|
u_char *, /* b */
|
|
int); /* n */
|
|
static void
|
|
wv_ack(struct net_device *);
|
|
static inline int
|
|
wv_synchronous_cmd(struct net_device *,
|
|
const char *),
|
|
wv_config_complete(struct net_device *,
|
|
u_long,
|
|
net_local *);
|
|
static int
|
|
wv_complete(struct net_device *,
|
|
u_long,
|
|
net_local *);
|
|
static inline void
|
|
wv_82586_reconfig(struct net_device *);
|
|
/* ------------------- DEBUG & INFO SUBROUTINES ------------------- */
|
|
#ifdef DEBUG_I82586_SHOW
|
|
static void
|
|
wv_scb_show(unsigned short);
|
|
#endif
|
|
static inline void
|
|
wv_init_info(struct net_device *); /* display startup info */
|
|
/* ------------------- IOCTL, STATS & RECONFIG ------------------- */
|
|
static en_stats *
|
|
wavelan_get_stats(struct net_device *); /* Give stats /proc/net/dev */
|
|
static iw_stats *
|
|
wavelan_get_wireless_stats(struct net_device *);
|
|
static void
|
|
wavelan_set_multicast_list(struct net_device *);
|
|
/* ----------------------- PACKET RECEPTION ----------------------- */
|
|
static inline void
|
|
wv_packet_read(struct net_device *, /* Read a packet from a frame. */
|
|
u_short,
|
|
int),
|
|
wv_receive(struct net_device *); /* Read all packets waiting. */
|
|
/* --------------------- PACKET TRANSMISSION --------------------- */
|
|
static inline int
|
|
wv_packet_write(struct net_device *, /* Write a packet to the Tx buffer. */
|
|
void *,
|
|
short);
|
|
static int
|
|
wavelan_packet_xmit(struct sk_buff *, /* Send a packet. */
|
|
struct net_device *);
|
|
/* -------------------- HARDWARE CONFIGURATION -------------------- */
|
|
static inline int
|
|
wv_mmc_init(struct net_device *), /* Initialize the modem. */
|
|
wv_ru_start(struct net_device *), /* Start the i82586 receiver unit. */
|
|
wv_cu_start(struct net_device *), /* Start the i82586 command unit. */
|
|
wv_82586_start(struct net_device *); /* Start the i82586. */
|
|
static void
|
|
wv_82586_config(struct net_device *); /* Configure the i82586. */
|
|
static inline void
|
|
wv_82586_stop(struct net_device *);
|
|
static int
|
|
wv_hw_reset(struct net_device *), /* Reset the WaveLAN hardware. */
|
|
wv_check_ioaddr(u_long, /* ioaddr */
|
|
u_char *); /* mac address (read) */
|
|
/* ---------------------- INTERRUPT HANDLING ---------------------- */
|
|
static irqreturn_t
|
|
wavelan_interrupt(int, /* interrupt handler */
|
|
void *);
|
|
static void
|
|
wavelan_watchdog(struct net_device *); /* transmission watchdog */
|
|
/* ------------------- CONFIGURATION CALLBACKS ------------------- */
|
|
static int
|
|
wavelan_open(struct net_device *), /* Open the device. */
|
|
wavelan_close(struct net_device *), /* Close the device. */
|
|
wavelan_config(struct net_device *, unsigned short);/* Configure one device. */
|
|
extern struct net_device *wavelan_probe(int unit); /* See Space.c. */
|
|
|
|
/**************************** VARIABLES ****************************/
|
|
|
|
/*
|
|
* This is the root of the linked list of WaveLAN drivers
|
|
* It is use to verify that we don't reuse the same base address
|
|
* for two different drivers and to clean up when removing the module.
|
|
*/
|
|
static net_local * wavelan_list = (net_local *) NULL;
|
|
|
|
/*
|
|
* This table is used to translate the PSA value to IRQ number
|
|
* and vice versa.
|
|
*/
|
|
static u_char irqvals[] =
|
|
{
|
|
0, 0, 0, 0x01,
|
|
0x02, 0x04, 0, 0x08,
|
|
0, 0, 0x10, 0x20,
|
|
0x40, 0, 0, 0x80,
|
|
};
|
|
|
|
/*
|
|
* Table of the available I/O addresses (base addresses) for WaveLAN
|
|
*/
|
|
static unsigned short iobase[] =
|
|
{
|
|
#if 0
|
|
/* Leave out 0x3C0 for now -- seems to clash with some video
|
|
* controllers.
|
|
* Leave out the others too -- we will always use 0x390 and leave
|
|
* 0x300 for the Ethernet device.
|
|
* Jean II: 0x3E0 is fine as well.
|
|
*/
|
|
0x300, 0x390, 0x3E0, 0x3C0
|
|
#endif /* 0 */
|
|
0x390, 0x3E0
|
|
};
|
|
|
|
#ifdef MODULE
|
|
/* Parameters set by insmod */
|
|
static int io[4];
|
|
static int irq[4];
|
|
static char *name[4];
|
|
module_param_array(io, int, NULL, 0);
|
|
module_param_array(irq, int, NULL, 0);
|
|
module_param_array(name, charp, NULL, 0);
|
|
|
|
MODULE_PARM_DESC(io, "WaveLAN I/O base address(es),required");
|
|
MODULE_PARM_DESC(irq, "WaveLAN IRQ number(s)");
|
|
MODULE_PARM_DESC(name, "WaveLAN interface neme(s)");
|
|
#endif /* MODULE */
|
|
|
|
#endif /* WAVELAN_P_H */
|