| /* |
| * Wavelan Pcmcia driver |
| * |
| * Jean II - HPLB '96 |
| * |
| * Reorganisation and extension of the driver. |
| * |
| * This file contain all definition and declarations necessary for the |
| * wavelan pcmcia driver. This file is a private header, so it should |
| * be included only on wavelan_cs.c !!! |
| */ |
| |
| #ifndef WAVELAN_CS_P_H |
| #define WAVELAN_CS_P_H |
| |
| /************************** DOCUMENTATION **************************/ |
| /* |
| * This driver provide a Linux interface to the Wavelan Pcmcia hardware |
| * The Wavelan is a product of Lucent (http://www.wavelan.com/). |
| * This division was formerly part of NCR and then AT&T. |
| * Wavelan are also distributed by DEC (RoamAbout DS)... |
| * |
| * To know how to use this driver, read the PCMCIA HOWTO. |
| * If you want to exploit the many other fonctionalities, look comments |
| * in the code... |
| * |
| * This driver is the result of the effort of many peoples (see below). |
| */ |
| |
| /* ------------------------ SPECIFIC NOTES ------------------------ */ |
| /* |
| * Web page |
| * -------- |
| * I try to maintain a web page with the Wireless LAN Howto at : |
| * http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Wavelan.html |
| * |
| * SMP |
| * --- |
| * We now are SMP compliant (I eventually fixed the remaining bugs). |
| * The driver has been tested on a dual P6-150 and survived my usual |
| * set of torture tests. |
| * Anyway, I spent enough time chasing interrupt re-entrancy during |
| * errors or reconfigure, and I designed the locked/unlocked sections |
| * of the driver with great care, and with the recent addition of |
| * the spinlock (thanks to the new API), we should be quite close to |
| * the truth. |
| * The SMP/IRQ locking is quite coarse and conservative (i.e. not fast), |
| * but better safe than sorry (especially at 2 Mb/s ;-). |
| * |
| * I have also looked into disabling only our interrupt on the card |
| * (via HACR) instead of all interrupts in the processor (via cli), |
| * so that other driver are not impacted, and it look like it's |
| * possible, but it's very tricky to do right (full of races). As |
| * the gain would be mostly for SMP systems, it can wait... |
| * |
| * Debugging and options |
| * --------------------- |
| * You will find below a set of '#define" allowing a very fine control |
| * on the driver behaviour and the debug messages printed. |
| * The main options are : |
| * o WAVELAN_ROAMING, for the experimental roaming support. |
| * o SET_PSA_CRC, to have your card correctly recognised by |
| * an access point and the Point-to-Point diagnostic tool. |
| * o USE_PSA_CONFIG, to read configuration from the PSA (EEprom) |
| * (otherwise we always start afresh with some defaults) |
| * |
| * wavelan_cs.o is darn too big |
| * ------------------------- |
| * That's true ! There is a very simple way to reduce the driver |
| * object by 33% (yes !). Comment out the following line : |
| * #include <linux/wireless.h> |
| * Other compile options can also reduce the size of it... |
| * |
| * MAC address and hardware detection : |
| * ---------------------------------- |
| * The detection code of the wavelan chech that the first 3 |
| * octets of the MAC address fit the company code. This type of |
| * detection work well for AT&T cards (because the AT&T code is |
| * hardcoded in wavelan_cs.h), but of course will fail for other |
| * manufacturer. |
| * |
| * If you are sure that your card is derived from the wavelan, |
| * here is the way to configure it : |
| * 1) Get your MAC address |
| * a) With your card utilities (wfreqsel, instconf, ...) |
| * b) With the driver : |
| * o compile the kernel with DEBUG_CONFIG_INFO enabled |
| * o Boot and look the card messages |
| * 2) Set your MAC code (3 octets) in MAC_ADDRESSES[][3] (wavelan_cs.h) |
| * 3) Compile & verify |
| * 4) Send me the MAC code - I will include it in the next version... |
| * |
| */ |
| |
| /* --------------------- WIRELESS EXTENSIONS --------------------- */ |
| /* |
| * This driver is the first one to support "wireless extensions". |
| * This set of extensions provide you some way to control the wireless |
| * caracteristics of the hardware in a standard way and support for |
| * applications for taking advantage of it (like Mobile IP). |
| * |
| * It might be a good idea as well to fetch the wireless tools to |
| * configure the device and play a bit. |
| */ |
| |
| /* ---------------------------- FILES ---------------------------- */ |
| /* |
| * wavelan_cs.c : The actual code for the driver - C functions |
| * |
| * wavelan_cs.p.h : Private header : local types / vars for the driver |
| * |
| * wavelan_cs.h : Description of the hardware interface & structs |
| * |
| * i82593.h : Description if the Ethernet controller |
| */ |
| |
| /* --------------------------- HISTORY --------------------------- */ |
| /* |
| * The history of the Wavelan drivers is as complicated as history of |
| * the Wavelan itself (NCR -> AT&T -> Lucent). |
| * |
| * All started with Anders Klemets <klemets@paul.rutgers.edu>, |
| * writing a Wavelan ISA driver for the MACH microkernel. Girish |
| * Welling <welling@paul.rutgers.edu> had also worked on it. |
| * Keith Moore modify this for the Pcmcia hardware. |
| * |
| * Robert Morris <rtm@das.harvard.edu> port these two drivers to BSDI |
| * and add specific Pcmcia support (there is currently no equivalent |
| * of the PCMCIA package under BSD...). |
| * |
| * Jim Binkley <jrb@cs.pdx.edu> port both BSDI drivers to FreeBSD. |
| * |
| * Bruce Janson <bruce@cs.usyd.edu.au> port the BSDI ISA driver to Linux. |
| * |
| * Anthony D. Joseph <adj@lcs.mit.edu> started modify Bruce driver |
| * (with help of the BSDI PCMCIA driver) for PCMCIA. |
| * Yunzhou Li <yunzhou@strat.iol.unh.edu> finished is work. |
| * Joe Finney <joe@comp.lancs.ac.uk> patched the driver to start |
| * correctly 2.00 cards (2.4 GHz with frequency selection). |
| * David Hinds <dahinds@users.sourceforge.net> integrated the whole in his |
| * Pcmcia package (+ bug corrections). |
| * |
| * I (Jean Tourrilhes - jt@hplb.hpl.hp.com) then started to make some |
| * patchs to the Pcmcia driver. After, I added code in the ISA driver |
| * for Wireless Extensions and full support of frequency selection |
| * cards. Now, I'm doing the same to the Pcmcia driver + some |
| * reorganisation. |
| * Loeke Brederveld <lbrederv@wavelan.com> from Lucent has given me |
| * much needed informations on the Wavelan hardware. |
| */ |
| |
| /* By the way : for the copyright & legal stuff : |
| * Almost everybody wrote code under GNU or BSD license (or alike), |
| * and want that their original copyright remain somewhere in the |
| * code (for myself, I go with the GPL). |
| * Nobody want to take responsibility for anything, except the fame... |
| */ |
| |
| /* --------------------------- CREDITS --------------------------- */ |
| /* |
| * Credits: |
| * Special thanks to Jan Hoogendoorn of AT&T GIS Utrecht and |
| * Loeke Brederveld of Lucent for providing extremely useful |
| * information about WaveLAN PCMCIA hardware |
| * |
| * This driver is based upon several other drivers, in particular: |
| * David Hinds' Linux driver for the PCMCIA 3c589 ethernet adapter |
| * Bruce Janson's Linux driver for the AT-bus WaveLAN adapter |
| * Anders Klemets' PCMCIA WaveLAN adapter driver |
| * Robert Morris' BSDI driver for the PCMCIA WaveLAN adapter |
| * |
| * Additional Credits: |
| * |
| * This software was originally developed under Linux 1.2.3 |
| * (Slackware 2.0 distribution). |
| * And then under Linux 2.0.x (Debian 1.1 -> 2.2 - pcmcia 2.8.18+) |
| * with an HP OmniBook 4000 and then a 5500. |
| * |
| * It is based on other device drivers and information either written |
| * or supplied by: |
| * James Ashton (jaa101@syseng.anu.edu.au), |
| * Ajay Bakre (bakre@paul.rutgers.edu), |
| * Donald Becker (becker@super.org), |
| * Jim Binkley <jrb@cs.pdx.edu>, |
| * Loeke Brederveld <lbrederv@wavelan.com>, |
| * Allan Creighton (allanc@cs.su.oz.au), |
| * Brent Elphick <belphick@uwaterloo.ca>, |
| * Joe Finney <joe@comp.lancs.ac.uk>, |
| * Matthew Geier (matthew@cs.su.oz.au), |
| * Remo di Giovanni (remo@cs.su.oz.au), |
| * Mark Hagan (mhagan@wtcpost.daytonoh.NCR.COM), |
| * David Hinds <dahinds@users.sourceforge.net>, |
| * Jan Hoogendoorn (c/o marteijn@lucent.com), |
| * Bruce Janson <bruce@cs.usyd.edu.au>, |
| * Anthony D. Joseph <adj@lcs.mit.edu>, |
| * Anders Klemets (klemets@paul.rutgers.edu), |
| * Yunzhou Li <yunzhou@strat.iol.unh.edu>, |
| * Marc Meertens (mmeertens@lucent.com), |
| * Keith Moore, |
| * Robert Morris (rtm@das.harvard.edu), |
| * Ian Parkin (ian@cs.su.oz.au), |
| * John Rosenberg (johnr@cs.su.oz.au), |
| * George Rossi (george@phm.gov.au), |
| * Arthur Scott (arthur@cs.su.oz.au), |
| * Stanislav Sinyagin <stas@isf.ru> |
| * Peter Storey, |
| * Jean Tourrilhes <jt@hpl.hp.com>, |
| * Girish Welling (welling@paul.rutgers.edu) |
| * Clark Woodworth <clark@hiway1.exit109.com> |
| * Yongguang Zhang <ygz@isl.hrl.hac.com>... |
| */ |
| |
| /* ------------------------- IMPROVEMENTS ------------------------- */ |
| /* |
| * I proudly present : |
| * |
| * Changes made in 2.8.22 : |
| * ---------------------- |
| * - improved wv_set_multicast_list |
| * - catch spurious interrupt |
| * - correct release of the device |
| * |
| * Changes mades in release : |
| * ------------------------ |
| * - Reorganisation of the code, function name change |
| * - Creation of private header (wavelan_cs.h) |
| * - Reorganised debug messages |
| * - More comments, history, ... |
| * - Configure earlier (in "insert" instead of "open") |
| * and do things only once |
| * - mmc_init : configure the PSA if not done |
| * - mmc_init : 2.00 detection better code for 2.00 init |
| * - better info at startup |
| * - Correct a HUGE bug (volatile & uncalibrated busy loop) |
| * in wv_82593_cmd => config speedup |
| * - Stop receiving & power down on close (and power up on open) |
| * use "ifconfig down" & "ifconfig up ; route add -net ..." |
| * - Send packets : add watchdog instead of pooling |
| * - Receive : check frame wrap around & try to recover some frames |
| * - wavelan_set_multicast_list : avoid reset |
| * - add wireless extensions (ioctl & get_wireless_stats) |
| * get/set nwid/frequency on fly, info for /proc/net/wireless |
| * - Suppress useless stuff from lp (net_local), but add link |
| * - More inlines |
| * - Lot of others minor details & cleanups |
| * |
| * Changes made in second release : |
| * ------------------------------ |
| * - Optimise wv_85893_reconfig stuff, fix potential problems |
| * - Change error values for ioctl |
| * - Non blocking wv_ru_stop() + call wv_reset() in case of problems |
| * - Remove development printk from wavelan_watchdog() |
| * - Remove of the watchdog to wavelan_close instead of wavelan_release |
| * fix potential problems... |
| * - Start debugging suspend stuff (but it's still a bit weird) |
| * - Debug & optimize dump header/packet in Rx & Tx (debug) |
| * - Use "readb" and "writeb" to be kernel 2.1 compliant |
| * - Better handling of bogus interrupts |
| * - Wireless extension : SETSPY and GETSPY |
| * - Remove old stuff (stats - for those needing it, just ask me...) |
| * - Make wireless extensions optional |
| * |
| * Changes made in third release : |
| * ----------------------------- |
| * - cleanups & typos |
| * - modif wireless ext (spy -> only one pointer) |
| * - new private ioctl to set/get quality & level threshold |
| * - Init : correct default value of level threshold for pcmcia |
| * - kill watchdog in hw_reset |
| * - more 2.1 support (copy_to/from_user instead of memcpy_to/fromfs) |
| * - Add message level (debug stuff in /var/adm/debug & errors not |
| * displayed at console and still in /var/adm/messages) |
| * |
| * Changes made in fourth release : |
| * ------------------------------ |
| * - multicast support (yes !) thanks to Yongguang Zhang. |
| * |
| * Changes made in fifth release (2.9.0) : |
| * ------------------------------------- |
| * - Revisited multicast code (it was mostly wrong). |
| * - protect code in wv_82593_reconfig with dev->tbusy (oups !) |
| * |
| * Changes made in sixth release (2.9.1a) : |
| * -------------------------------------- |
| * - Change the detection code for multi manufacturer code support |
| * - Correct bug (hang kernel) in init when we were "rejecting" a card |
| * |
| * Changes made in seventh release (2.9.1b) : |
| * ---------------------------------------- |
| * - Update to wireless extensions changes |
| * - Silly bug in card initial configuration (psa_conf_status) |
| * |
| * Changes made in eigth release : |
| * ----------------------------- |
| * - Small bug in debug code (probably not the last one...) |
| * - 1.2.13 support (thanks to Clark Woodworth) |
| * |
| * Changes made for release in 2.9.2b : |
| * ---------------------------------- |
| * - Level threshold is now a standard wireless extension (version 4 !) |
| * - modules parameters types for kernel > 2.1.17 |
| * - updated man page |
| * - Others cleanup from David Hinds |
| * |
| * Changes made for release in 2.9.5 : |
| * --------------------------------- |
| * - byte count stats (courtesy of David Hinds) |
| * - Remove dev_tint stuff (courtesy of David Hinds) |
| * - Others cleanup from David Hinds |
| * - Encryption setting from Brent Elphick (thanks a lot !) |
| * - 'base' to 'u_long' for the Alpha (thanks to Stanislav Sinyagin) |
| * |
| * Changes made for release in 2.9.6 : |
| * --------------------------------- |
| * - fix bug : no longuer disable watchdog in case of bogus interrupt |
| * - increase timeout in config code for picky hardware |
| * - mask unused bits in status (Wireless Extensions) |
| * |
| * Changes integrated by Justin Seger <jseger@MIT.EDU> & David Hinds : |
| * ----------------------------------------------------------------- |
| * - Roaming "hack" from Joe Finney <joe@comp.lancs.ac.uk> |
| * - PSA CRC code from Bob Gray <rgray@bald.cs.dartmouth.edu> |
| * - Better initialisation of the i82593 controller |
| * from Joseph K. O'Sullivan <josullvn+@cs.cmu.edu> |
| * |
| * Changes made for release in 3.0.10 : |
| * ---------------------------------- |
| * - Fix eject "hang" of the driver under 2.2.X : |
| * o create wv_flush_stale_links() |
| * o Rename wavelan_release to wv_pcmcia_release & move up |
| * o move unregister_netdev to wavelan_detach() |
| * o wavelan_release() no longer call wavelan_detach() |
| * o Suppress "release" timer |
| * o Other cleanups & fixes |
| * - New MAC address in the probe |
| * - Reorg PSA_CRC code (endian neutral & cleaner) |
| * - Correct initialisation of the i82593 from Lucent manual |
| * - Put back the watchdog, with larger timeout |
| * - TRANSMIT_NO_CRC is a "normal" error, so recover from it |
| * from Derrick J Brashear <shadow@dementia.org> |
| * - Better handling of TX and RX normal failure conditions |
| * - #ifdef out all the roaming code |
| * - Add ESSID & "AP current address" ioctl stubs |
| * - General cleanup of the code |
| * |
| * Changes made for release in 3.0.13 : |
| * ---------------------------------- |
| * - Re-enable compilation of roaming code by default, but with |
| * do_roaming = 0 |
| * - Nuke `nwid=nwid^ntohs(beacon->domain_id)' in wl_roam_gather |
| * at the demand of John Carol Langford <jcl@gs176.sp.cs.cmu.edu> |
| * - Introduced WAVELAN_ROAMING_EXT for incomplete ESSID stuff. |
| * |
| * Changes made for release in 3.0.15 : |
| * ---------------------------------- |
| * - Change e-mail and web page addresses |
| * - Watchdog timer is now correctly expressed in HZ, not in jiffies |
| * - Add channel number to the list of frequencies in range |
| * - Add the (short) list of bit-rates in range |
| * - Developp a new sensitivity... (sens.value & sens.fixed) |
| * |
| * Changes made for release in 3.1.2 : |
| * --------------------------------- |
| * - Fix check for root permission (break instead of exit) |
| * - New nwid & encoding setting (Wireless Extension 9) |
| * |
| * Changes made for release in 3.1.12 : |
| * ---------------------------------- |
| * - reworked wv_82593_cmd to avoid using the IRQ handler and doing |
| * ugly things with interrupts. |
| * - Add IRQ protection in 82593_config/ru_start/ru_stop/watchdog |
| * - Update to new network API (softnet - 2.3.43) : |
| * o replace dev->tbusy (David + me) |
| * o replace dev->tstart (David + me) |
| * o remove dev->interrupt (David) |
| * o add SMP locking via spinlock in splxx (me) |
| * o add spinlock in interrupt handler (me) |
| * o use kernel watchdog instead of ours (me) |
| * o verify that all the changes make sense and work (me) |
| * - Re-sync kernel/pcmcia versions (not much actually) |
| * - A few other cleanups (David & me)... |
| * |
| * Changes made for release in 3.1.22 : |
| * ---------------------------------- |
| * - Check that SMP works, remove annoying log message |
| * |
| * Changes made for release in 3.1.24 : |
| * ---------------------------------- |
| * - Fix unfrequent card lockup when watchdog was reseting the hardware : |
| * o control first busy loop in wv_82593_cmd() |
| * o Extend spinlock protection in wv_hw_config() |
| * |
| * Changes made for release in 3.1.33 : |
| * ---------------------------------- |
| * - Optional use new driver API for Wireless Extensions : |
| * o got rid of wavelan_ioctl() |
| * o use a bunch of iw_handler instead |
| * |
| * Changes made for release in 3.2.1 : |
| * --------------------------------- |
| * - Set dev->trans_start to avoid filling the logs |
| * (and generating useless abort commands) |
| * - Avoid deadlocks in mmc_out()/mmc_in() |
| * |
| * Wishes & dreams: |
| * ---------------- |
| * - Cleanup and integrate the roaming code |
| * (std debug, set DomainID, decay avg and co...) |
| */ |
| |
| /***************************** INCLUDES *****************************/ |
| |
| /* Linux headers that we need */ |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/sched.h> |
| #include <linux/ptrace.h> |
| #include <linux/slab.h> |
| #include <linux/string.h> |
| #include <linux/timer.h> |
| #include <linux/interrupt.h> |
| #include <linux/spinlock.h> |
| #include <linux/in.h> |
| #include <linux/delay.h> |
| #include <linux/bitops.h> |
| #include <asm/uaccess.h> |
| #include <asm/io.h> |
| #include <asm/system.h> |
| |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/skbuff.h> |
| #include <linux/if_arp.h> |
| #include <linux/ioport.h> |
| #include <linux/fcntl.h> |
| #include <linux/ethtool.h> |
| #include <linux/wireless.h> /* Wireless extensions */ |
| #include <net/iw_handler.h> /* New driver API */ |
| |
| /* Pcmcia headers that we need */ |
| #include <pcmcia/cs_types.h> |
| #include <pcmcia/cs.h> |
| #include <pcmcia/cistpl.h> |
| #include <pcmcia/cisreg.h> |
| #include <pcmcia/ds.h> |
| |
| /* Wavelan declarations */ |
| #include "i82593.h" /* Definitions for the Intel chip */ |
| |
| #include "wavelan_cs.h" /* Others bits of the hardware */ |
| |
| /************************** DRIVER OPTIONS **************************/ |
| /* |
| * `#define' or `#undef' the following constant to change the behaviour |
| * of the driver... |
| */ |
| #define WAVELAN_ROAMING /* Include experimental roaming code */ |
| #undef WAVELAN_ROAMING_EXT /* Enable roaming wireless extensions */ |
| #undef SET_PSA_CRC /* Set the CRC in PSA (slower) */ |
| #define USE_PSA_CONFIG /* Use info from the PSA */ |
| #undef EEPROM_IS_PROTECTED /* Doesn't seem to be necessary */ |
| #define MULTICAST_AVOID /* Avoid extra multicast (I'm sceptical) */ |
| #undef SET_MAC_ADDRESS /* Experimental */ |
| |
| /* Warning : these stuff will slow down the driver... */ |
| #define WIRELESS_SPY /* Enable spying addresses */ |
| #undef HISTOGRAM /* Enable histogram of sig level... */ |
| |
| /****************************** DEBUG ******************************/ |
| |
| #undef DEBUG_MODULE_TRACE /* Module insertion/removal */ |
| #undef DEBUG_CALLBACK_TRACE /* Calls made by Linux */ |
| #undef DEBUG_INTERRUPT_TRACE /* Calls to handler */ |
| #undef DEBUG_INTERRUPT_INFO /* type of interrupt & so on */ |
| #define DEBUG_INTERRUPT_ERROR /* problems */ |
| #undef DEBUG_CONFIG_TRACE /* Trace the config functions */ |
| #undef DEBUG_CONFIG_INFO /* What's going on... */ |
| #define DEBUG_CONFIG_ERRORS /* Errors on configuration */ |
| #undef DEBUG_TX_TRACE /* Transmission calls */ |
| #undef DEBUG_TX_INFO /* Header of the transmitted packet */ |
| #undef DEBUG_TX_FAIL /* Normal failure conditions */ |
| #define DEBUG_TX_ERROR /* Unexpected conditions */ |
| #undef DEBUG_RX_TRACE /* Transmission calls */ |
| #undef DEBUG_RX_INFO /* Header of the transmitted packet */ |
| #undef DEBUG_RX_FAIL /* Normal failure conditions */ |
| #define DEBUG_RX_ERROR /* Unexpected conditions */ |
| #undef DEBUG_PACKET_DUMP /* Dump packet on the screen */ |
| #undef DEBUG_IOCTL_TRACE /* Misc call by Linux */ |
| #undef DEBUG_IOCTL_INFO /* Various debug info */ |
| #define DEBUG_IOCTL_ERROR /* What's going wrong */ |
| #define DEBUG_BASIC_SHOW /* Show basic startup info */ |
| #undef DEBUG_VERSION_SHOW /* Print version info */ |
| #undef DEBUG_PSA_SHOW /* Dump psa to screen */ |
| #undef DEBUG_MMC_SHOW /* Dump mmc to screen */ |
| #undef DEBUG_SHOW_UNUSED /* Show also unused fields */ |
| #undef DEBUG_I82593_SHOW /* Show i82593 status */ |
| #undef DEBUG_DEVICE_SHOW /* Show device parameters */ |
| |
| /************************ CONSTANTS & MACROS ************************/ |
| |
| #ifdef DEBUG_VERSION_SHOW |
| static const char *version = "wavelan_cs.c : v24 (SMP + wireless extensions) 11/1/02\n"; |
| #endif |
| |
| /* Watchdog temporisation */ |
| #define WATCHDOG_JIFFIES (256*HZ/100) |
| |
| /* Fix a bug in some old wireless extension definitions */ |
| #ifndef IW_ESSID_MAX_SIZE |
| #define IW_ESSID_MAX_SIZE 32 |
| #endif |
| |
| /* ------------------------ PRIVATE IOCTL ------------------------ */ |
| |
| #define SIOCSIPQTHR SIOCIWFIRSTPRIV /* Set quality threshold */ |
| #define SIOCGIPQTHR SIOCIWFIRSTPRIV + 1 /* Get quality threshold */ |
| #define SIOCSIPROAM SIOCIWFIRSTPRIV + 2 /* Set roaming state */ |
| #define SIOCGIPROAM SIOCIWFIRSTPRIV + 3 /* Get roaming state */ |
| |
| #define SIOCSIPHISTO SIOCIWFIRSTPRIV + 4 /* Set histogram ranges */ |
| #define SIOCGIPHISTO SIOCIWFIRSTPRIV + 5 /* Get histogram values */ |
| |
| /*************************** WaveLAN Roaming **************************/ |
| #ifdef WAVELAN_ROAMING /* Conditional compile, see above in options */ |
| |
| #define WAVELAN_ROAMING_DEBUG 0 /* 1 = Trace of handover decisions */ |
| /* 2 = Info on each beacon rcvd... */ |
| #define MAX_WAVEPOINTS 7 /* Max visible at one time */ |
| #define WAVEPOINT_HISTORY 5 /* SNR sample history slow search */ |
| #define WAVEPOINT_FAST_HISTORY 2 /* SNR sample history fast search */ |
| #define SEARCH_THRESH_LOW 10 /* SNR to enter cell search */ |
| #define SEARCH_THRESH_HIGH 13 /* SNR to leave cell search */ |
| #define WAVELAN_ROAMING_DELTA 1 /* Hysteresis value (+/- SNR) */ |
| #define CELL_TIMEOUT 2*HZ /* in jiffies */ |
| |
| #define FAST_CELL_SEARCH 1 /* Boolean values... */ |
| #define NWID_PROMISC 1 /* for code clarity. */ |
| |
| typedef struct wavepoint_beacon |
| { |
| unsigned char dsap, /* Unused */ |
| ssap, /* Unused */ |
| ctrl, /* Unused */ |
| O,U,I, /* Unused */ |
| spec_id1, /* Unused */ |
| spec_id2, /* Unused */ |
| pdu_type, /* Unused */ |
| seq; /* WavePoint beacon sequence number */ |
| __be16 domain_id, /* WavePoint Domain ID */ |
| nwid; /* WavePoint NWID */ |
| } wavepoint_beacon; |
| |
| typedef struct wavepoint_history |
| { |
| unsigned short nwid; /* WavePoint's NWID */ |
| int average_slow; /* SNR running average */ |
| int average_fast; /* SNR running average */ |
| unsigned char sigqual[WAVEPOINT_HISTORY]; /* Ringbuffer of recent SNR's */ |
| unsigned char qualptr; /* Index into ringbuffer */ |
| unsigned char last_seq; /* Last seq. no seen for WavePoint */ |
| struct wavepoint_history *next; /* Next WavePoint in table */ |
| struct wavepoint_history *prev; /* Previous WavePoint in table */ |
| unsigned long last_seen; /* Time of last beacon recvd, jiffies */ |
| } wavepoint_history; |
| |
| struct wavepoint_table |
| { |
| wavepoint_history *head; /* Start of ringbuffer */ |
| int num_wavepoints; /* No. of WavePoints visible */ |
| unsigned char locked; /* Table lock */ |
| }; |
| |
| #endif /* WAVELAN_ROAMING */ |
| |
| /****************************** 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 keep data in two structure. "device" |
| * keep the generic data (same format for everybody) and "net_local" keep |
| * the additional specific data. |
| * Note that some of this specific data is in fact generic (en_stats, for |
| * example). |
| */ |
| struct net_local |
| { |
| dev_node_t node; /* ???? What is this stuff ???? */ |
| struct net_device * dev; /* Reverse link... */ |
| spinlock_t spinlock; /* Serialize access to the hardware (SMP) */ |
| struct pcmcia_device * link; /* pcmcia structure */ |
| en_stats stats; /* Ethernet interface statistics */ |
| int nresets; /* Number of hw resets */ |
| u_char configured; /* If it is configured */ |
| u_char reconfig_82593; /* Need to reconfigure the controller */ |
| u_char promiscuous; /* Promiscuous mode */ |
| u_char allmulticast; /* All Multicast mode */ |
| int mc_count; /* Number of multicast addresses */ |
| |
| int stop; /* Current i82593 Stop Hit Register */ |
| int rfp; /* Last DMA machine receive pointer */ |
| int overrunning; /* Receiver overrun flag */ |
| |
| iw_stats wstats; /* Wireless specific stats */ |
| |
| 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 */ |
| #ifdef WAVELAN_ROAMING |
| u_long domain_id; /* Domain ID we lock on for roaming */ |
| int filter_domains; /* Check Domain ID of beacon found */ |
| struct wavepoint_table wavepoint_table; /* Table of visible WavePoints*/ |
| wavepoint_history * curr_point; /* Current wavepoint */ |
| int cell_search; /* Searching for new cell? */ |
| struct timer_list cell_timer; /* Garbage collection */ |
| #endif /* WAVELAN_ROAMING */ |
| void __iomem *mem; |
| }; |
| |
| /* ----------------- MODEM MANAGEMENT SUBROUTINES ----------------- */ |
| static inline u_char /* data */ |
| hasr_read(u_long); /* Read the host interface : base address */ |
| static void |
| hacr_write(u_long, /* Write to host interface : base address */ |
| u_char), /* data */ |
| hacr_write_slow(u_long, |
| u_char); |
| static void |
| psa_read(struct net_device *, /* Read the Parameter Storage Area */ |
| int, /* offset in PSA */ |
| u_char *, /* buffer to fill */ |
| int), /* size to read */ |
| psa_write(struct net_device *, /* Write to the PSA */ |
| int, /* Offset in psa */ |
| u_char *, /* Buffer in memory */ |
| int); /* Length of buffer */ |
| static 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 u_char /* Read 1 byte from the MMC */ |
| mmc_in(u_long, |
| u_short); |
| static 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); /* Number of 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 */ |
| /* ---------------------- I82593 SUBROUTINES ----------------------- */ |
| static int |
| wv_82593_cmd(struct net_device *, /* synchronously send a command to i82593 */ |
| char *, |
| int, |
| int); |
| static inline int |
| wv_diag(struct net_device *); /* Diagnostique the i82593 */ |
| static int |
| read_ringbuf(struct net_device *, /* Read a receive buffer */ |
| int, |
| char *, |
| int); |
| static void |
| wv_82593_reconfig(struct net_device *); /* Reconfigure the controller */ |
| /* ------------------- DEBUG & INFO SUBROUTINES ------------------- */ |
| static 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 *); |
| /* ----------------------- PACKET RECEPTION ----------------------- */ |
| static int |
| wv_start_of_frame(struct net_device *, /* Seek beggining of current frame */ |
| int, /* end of frame */ |
| int); /* start of buffer */ |
| static void |
| wv_packet_read(struct net_device *, /* Read a packet from a frame */ |
| int, |
| int), |
| wv_packet_rcv(struct net_device *); /* Read all packets waiting */ |
| /* --------------------- PACKET TRANSMISSION --------------------- */ |
| static void |
| 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 int |
| wv_mmc_init(struct net_device *); /* Initialize the modem */ |
| static int |
| wv_ru_stop(struct net_device *), /* Stop the i82593 receiver unit */ |
| wv_ru_start(struct net_device *); /* Start the i82593 receiver unit */ |
| static int |
| wv_82593_config(struct net_device *); /* Configure the i82593 */ |
| static int |
| wv_pcmcia_reset(struct net_device *); /* Reset the pcmcia interface */ |
| static int |
| wv_hw_config(struct net_device *); /* Reset & configure the whole hardware */ |
| static void |
| wv_hw_reset(struct net_device *); /* Same, + start receiver unit */ |
| static int |
| wv_pcmcia_config(struct pcmcia_device *); /* Configure the pcmcia interface */ |
| static void |
| wv_pcmcia_release(struct pcmcia_device *);/* Remove a device */ |
| /* ---------------------- 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 */ |
| static void |
| wavelan_detach(struct pcmcia_device *p_dev); /* Destroy a removed device */ |
| |
| /**************************** VARIABLES ****************************/ |
| |
| /* |
| * Parameters that can be set with 'insmod' |
| * The exact syntax is 'insmod wavelan_cs.o <var>=<value>' |
| */ |
| |
| /* Shared memory speed, in ns */ |
| static int mem_speed = 0; |
| |
| /* New module interface */ |
| module_param(mem_speed, int, 0); |
| |
| #ifdef WAVELAN_ROAMING /* Conditional compile, see above in options */ |
| /* Enable roaming mode ? No ! Please keep this to 0 */ |
| static int do_roaming = 0; |
| module_param(do_roaming, bool, 0); |
| #endif /* WAVELAN_ROAMING */ |
| |
| MODULE_LICENSE("GPL"); |
| |
| #endif /* WAVELAN_CS_P_H */ |
| |
