2 * Wavelan Pcmcia driver
6 * Reorganisation and extension of the driver.
8 * This file contain all definition and declarations necessary for the
9 * wavelan pcmcia driver. This file is a private header, so it should
10 * be included only on wavelan_cs.c !!!
13 #ifndef WAVELAN_CS_P_H
14 #define WAVELAN_CS_P_H
16 /************************** DOCUMENTATION **************************/
18 * This driver provide a Linux interface to the Wavelan Pcmcia hardware
19 * The Wavelan is a product of Lucent (http://www.wavelan.com/).
20 * This division was formerly part of NCR and then AT&T.
21 * Wavelan are also distributed by DEC (RoamAbout DS)...
23 * To know how to use this driver, read the PCMCIA HOWTO.
24 * If you want to exploit the many other fonctionalities, look comments
27 * This driver is the result of the effort of many peoples (see below).
30 /* ------------------------ SPECIFIC NOTES ------------------------ */
34 * I try to maintain a web page with the Wireless LAN Howto at :
35 * http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Wavelan.html
39 * We now are SMP compliant (I eventually fixed the remaining bugs).
40 * The driver has been tested on a dual P6-150 and survived my usual
41 * set of torture tests.
42 * Anyway, I spent enough time chasing interrupt re-entrancy during
43 * errors or reconfigure, and I designed the locked/unlocked sections
44 * of the driver with great care, and with the recent addition of
45 * the spinlock (thanks to the new API), we should be quite close to
47 * The SMP/IRQ locking is quite coarse and conservative (i.e. not fast),
48 * but better safe than sorry (especially at 2 Mb/s ;-).
50 * I have also looked into disabling only our interrupt on the card
51 * (via HACR) instead of all interrupts in the processor (via cli),
52 * so that other driver are not impacted, and it look like it's
53 * possible, but it's very tricky to do right (full of races). As
54 * the gain would be mostly for SMP systems, it can wait...
56 * Debugging and options
57 * ---------------------
58 * You will find below a set of '#define" allowing a very fine control
59 * on the driver behaviour and the debug messages printed.
60 * The main options are :
61 * o WAVELAN_ROAMING, for the experimental roaming support.
62 * o SET_PSA_CRC, to have your card correctly recognised by
63 * an access point and the Point-to-Point diagnostic tool.
64 * o USE_PSA_CONFIG, to read configuration from the PSA (EEprom)
65 * (otherwise we always start afresh with some defaults)
67 * wavelan_cs.o is darn too big
68 * -------------------------
69 * That's true ! There is a very simple way to reduce the driver
70 * object by 33% (yes !). Comment out the following line :
71 * #include <linux/wireless.h>
72 * Other compile options can also reduce the size of it...
74 * MAC address and hardware detection :
75 * ----------------------------------
76 * The detection code of the wavelan chech that the first 3
77 * octets of the MAC address fit the company code. This type of
78 * detection work well for AT&T cards (because the AT&T code is
79 * hardcoded in wavelan_cs.h), but of course will fail for other
82 * If you are sure that your card is derived from the wavelan,
83 * here is the way to configure it :
84 * 1) Get your MAC address
85 * a) With your card utilities (wfreqsel, instconf, ...)
86 * b) With the driver :
87 * o compile the kernel with DEBUG_CONFIG_INFO enabled
88 * o Boot and look the card messages
89 * 2) Set your MAC code (3 octets) in MAC_ADDRESSES[][3] (wavelan_cs.h)
91 * 4) Send me the MAC code - I will include it in the next version...
95 /* --------------------- WIRELESS EXTENSIONS --------------------- */
97 * This driver is the first one to support "wireless extensions".
98 * This set of extensions provide you some way to control the wireless
99 * caracteristics of the hardware in a standard way and support for
100 * applications for taking advantage of it (like Mobile IP).
102 * It might be a good idea as well to fetch the wireless tools to
103 * configure the device and play a bit.
106 /* ---------------------------- FILES ---------------------------- */
108 * wavelan_cs.c : The actual code for the driver - C functions
110 * wavelan_cs.p.h : Private header : local types / vars for the driver
112 * wavelan_cs.h : Description of the hardware interface & structs
114 * i82593.h : Description if the Ethernet controller
117 /* --------------------------- HISTORY --------------------------- */
119 * The history of the Wavelan drivers is as complicated as history of
120 * the Wavelan itself (NCR -> AT&T -> Lucent).
122 * All started with Anders Klemets <klemets@paul.rutgers.edu>,
123 * writing a Wavelan ISA driver for the MACH microkernel. Girish
124 * Welling <welling@paul.rutgers.edu> had also worked on it.
125 * Keith Moore modify this for the Pcmcia hardware.
127 * Robert Morris <rtm@das.harvard.edu> port these two drivers to BSDI
128 * and add specific Pcmcia support (there is currently no equivalent
129 * of the PCMCIA package under BSD...).
131 * Jim Binkley <jrb@cs.pdx.edu> port both BSDI drivers to FreeBSD.
133 * Bruce Janson <bruce@cs.usyd.edu.au> port the BSDI ISA driver to Linux.
135 * Anthony D. Joseph <adj@lcs.mit.edu> started modify Bruce driver
136 * (with help of the BSDI PCMCIA driver) for PCMCIA.
137 * Yunzhou Li <yunzhou@strat.iol.unh.edu> finished is work.
138 * Joe Finney <joe@comp.lancs.ac.uk> patched the driver to start
139 * correctly 2.00 cards (2.4 GHz with frequency selection).
140 * David Hinds <dahinds@users.sourceforge.net> integrated the whole in his
141 * Pcmcia package (+ bug corrections).
143 * I (Jean Tourrilhes - jt@hplb.hpl.hp.com) then started to make some
144 * patchs to the Pcmcia driver. After, I added code in the ISA driver
145 * for Wireless Extensions and full support of frequency selection
146 * cards. Now, I'm doing the same to the Pcmcia driver + some
148 * Loeke Brederveld <lbrederv@wavelan.com> from Lucent has given me
149 * much needed informations on the Wavelan hardware.
152 /* By the way : for the copyright & legal stuff :
153 * Almost everybody wrote code under GNU or BSD license (or alike),
154 * and want that their original copyright remain somewhere in the
155 * code (for myself, I go with the GPL).
156 * Nobody want to take responsibility for anything, except the fame...
159 /* --------------------------- CREDITS --------------------------- */
162 * Special thanks to Jan Hoogendoorn of AT&T GIS Utrecht and
163 * Loeke Brederveld of Lucent for providing extremely useful
164 * information about WaveLAN PCMCIA hardware
166 * This driver is based upon several other drivers, in particular:
167 * David Hinds' Linux driver for the PCMCIA 3c589 ethernet adapter
168 * Bruce Janson's Linux driver for the AT-bus WaveLAN adapter
169 * Anders Klemets' PCMCIA WaveLAN adapter driver
170 * Robert Morris' BSDI driver for the PCMCIA WaveLAN adapter
172 * Additional Credits:
174 * This software was originally developed under Linux 1.2.3
175 * (Slackware 2.0 distribution).
176 * And then under Linux 2.0.x (Debian 1.1 -> 2.2 - pcmcia 2.8.18+)
177 * with an HP OmniBook 4000 and then a 5500.
179 * It is based on other device drivers and information either written
181 * James Ashton (jaa101@syseng.anu.edu.au),
182 * Ajay Bakre (bakre@paul.rutgers.edu),
183 * Donald Becker (becker@super.org),
184 * Jim Binkley <jrb@cs.pdx.edu>,
185 * Loeke Brederveld <lbrederv@wavelan.com>,
186 * Allan Creighton (allanc@cs.su.oz.au),
187 * Brent Elphick <belphick@uwaterloo.ca>,
188 * Joe Finney <joe@comp.lancs.ac.uk>,
189 * Matthew Geier (matthew@cs.su.oz.au),
190 * Remo di Giovanni (remo@cs.su.oz.au),
191 * Mark Hagan (mhagan@wtcpost.daytonoh.NCR.COM),
192 * David Hinds <dahinds@users.sourceforge.net>,
193 * Jan Hoogendoorn (c/o marteijn@lucent.com),
194 * Bruce Janson <bruce@cs.usyd.edu.au>,
195 * Anthony D. Joseph <adj@lcs.mit.edu>,
196 * Anders Klemets (klemets@paul.rutgers.edu),
197 * Yunzhou Li <yunzhou@strat.iol.unh.edu>,
198 * Marc Meertens (mmeertens@lucent.com),
200 * Robert Morris (rtm@das.harvard.edu),
201 * Ian Parkin (ian@cs.su.oz.au),
202 * John Rosenberg (johnr@cs.su.oz.au),
203 * George Rossi (george@phm.gov.au),
204 * Arthur Scott (arthur@cs.su.oz.au),
205 * Stanislav Sinyagin <stas@isf.ru>
207 * Jean Tourrilhes <jt@hpl.hp.com>,
208 * Girish Welling (welling@paul.rutgers.edu)
209 * Clark Woodworth <clark@hiway1.exit109.com>
210 * Yongguang Zhang <ygz@isl.hrl.hac.com>...
213 /* ------------------------- IMPROVEMENTS ------------------------- */
215 * I proudly present :
217 * Changes made in 2.8.22 :
218 * ----------------------
219 * - improved wv_set_multicast_list
220 * - catch spurious interrupt
221 * - correct release of the device
223 * Changes mades in release :
224 * ------------------------
225 * - Reorganisation of the code, function name change
226 * - Creation of private header (wavelan_cs.h)
227 * - Reorganised debug messages
228 * - More comments, history, ...
229 * - Configure earlier (in "insert" instead of "open")
230 * and do things only once
231 * - mmc_init : configure the PSA if not done
232 * - mmc_init : 2.00 detection better code for 2.00 init
233 * - better info at startup
234 * - Correct a HUGE bug (volatile & uncalibrated busy loop)
235 * in wv_82593_cmd => config speedup
236 * - Stop receiving & power down on close (and power up on open)
237 * use "ifconfig down" & "ifconfig up ; route add -net ..."
238 * - Send packets : add watchdog instead of pooling
239 * - Receive : check frame wrap around & try to recover some frames
240 * - wavelan_set_multicast_list : avoid reset
241 * - add wireless extensions (ioctl & get_wireless_stats)
242 * get/set nwid/frequency on fly, info for /proc/net/wireless
243 * - Suppress useless stuff from lp (net_local), but add link
245 * - Lot of others minor details & cleanups
247 * Changes made in second release :
248 * ------------------------------
249 * - Optimise wv_85893_reconfig stuff, fix potential problems
250 * - Change error values for ioctl
251 * - Non blocking wv_ru_stop() + call wv_reset() in case of problems
252 * - Remove development printk from wavelan_watchdog()
253 * - Remove of the watchdog to wavelan_close instead of wavelan_release
254 * fix potential problems...
255 * - Start debugging suspend stuff (but it's still a bit weird)
256 * - Debug & optimize dump header/packet in Rx & Tx (debug)
257 * - Use "readb" and "writeb" to be kernel 2.1 compliant
258 * - Better handling of bogus interrupts
259 * - Wireless extension : SETSPY and GETSPY
260 * - Remove old stuff (stats - for those needing it, just ask me...)
261 * - Make wireless extensions optional
263 * Changes made in third release :
264 * -----------------------------
266 * - modif wireless ext (spy -> only one pointer)
267 * - new private ioctl to set/get quality & level threshold
268 * - Init : correct default value of level threshold for pcmcia
269 * - kill watchdog in hw_reset
270 * - more 2.1 support (copy_to/from_user instead of memcpy_to/fromfs)
271 * - Add message level (debug stuff in /var/adm/debug & errors not
272 * displayed at console and still in /var/adm/messages)
274 * Changes made in fourth release :
275 * ------------------------------
276 * - multicast support (yes !) thanks to Yongguang Zhang.
278 * Changes made in fifth release (2.9.0) :
279 * -------------------------------------
280 * - Revisited multicast code (it was mostly wrong).
281 * - protect code in wv_82593_reconfig with dev->tbusy (oups !)
283 * Changes made in sixth release (2.9.1a) :
284 * --------------------------------------
285 * - Change the detection code for multi manufacturer code support
286 * - Correct bug (hang kernel) in init when we were "rejecting" a card
288 * Changes made in seventh release (2.9.1b) :
289 * ----------------------------------------
290 * - Update to wireless extensions changes
291 * - Silly bug in card initial configuration (psa_conf_status)
293 * Changes made in eigth release :
294 * -----------------------------
295 * - Small bug in debug code (probably not the last one...)
296 * - 1.2.13 support (thanks to Clark Woodworth)
298 * Changes made for release in 2.9.2b :
299 * ----------------------------------
300 * - Level threshold is now a standard wireless extension (version 4 !)
301 * - modules parameters types for kernel > 2.1.17
303 * - Others cleanup from David Hinds
305 * Changes made for release in 2.9.5 :
306 * ---------------------------------
307 * - byte count stats (courtesy of David Hinds)
308 * - Remove dev_tint stuff (courtesy of David Hinds)
309 * - Others cleanup from David Hinds
310 * - Encryption setting from Brent Elphick (thanks a lot !)
311 * - 'base' to 'u_long' for the Alpha (thanks to Stanislav Sinyagin)
313 * Changes made for release in 2.9.6 :
314 * ---------------------------------
315 * - fix bug : no longuer disable watchdog in case of bogus interrupt
316 * - increase timeout in config code for picky hardware
317 * - mask unused bits in status (Wireless Extensions)
319 * Changes integrated by Justin Seger <jseger@MIT.EDU> & David Hinds :
320 * -----------------------------------------------------------------
321 * - Roaming "hack" from Joe Finney <joe@comp.lancs.ac.uk>
322 * - PSA CRC code from Bob Gray <rgray@bald.cs.dartmouth.edu>
323 * - Better initialisation of the i82593 controller
324 * from Joseph K. O'Sullivan <josullvn+@cs.cmu.edu>
326 * Changes made for release in 3.0.10 :
327 * ----------------------------------
328 * - Fix eject "hang" of the driver under 2.2.X :
329 * o create wv_flush_stale_links()
330 * o Rename wavelan_release to wv_pcmcia_release & move up
331 * o move unregister_netdev to wavelan_detach()
332 * o wavelan_release() no longer call wavelan_detach()
333 * o Suppress "release" timer
334 * o Other cleanups & fixes
335 * - New MAC address in the probe
336 * - Reorg PSA_CRC code (endian neutral & cleaner)
337 * - Correct initialisation of the i82593 from Lucent manual
338 * - Put back the watchdog, with larger timeout
339 * - TRANSMIT_NO_CRC is a "normal" error, so recover from it
340 * from Derrick J Brashear <shadow@dementia.org>
341 * - Better handling of TX and RX normal failure conditions
342 * - #ifdef out all the roaming code
343 * - Add ESSID & "AP current address" ioctl stubs
344 * - General cleanup of the code
346 * Changes made for release in 3.0.13 :
347 * ----------------------------------
348 * - Re-enable compilation of roaming code by default, but with
350 * - Nuke `nwid=nwid^ntohs(beacon->domain_id)' in wl_roam_gather
351 * at the demand of John Carol Langford <jcl@gs176.sp.cs.cmu.edu>
352 * - Introduced WAVELAN_ROAMING_EXT for incomplete ESSID stuff.
354 * Changes made for release in 3.0.15 :
355 * ----------------------------------
356 * - Change e-mail and web page addresses
357 * - Watchdog timer is now correctly expressed in HZ, not in jiffies
358 * - Add channel number to the list of frequencies in range
359 * - Add the (short) list of bit-rates in range
360 * - Developp a new sensitivity... (sens.value & sens.fixed)
362 * Changes made for release in 3.1.2 :
363 * ---------------------------------
364 * - Fix check for root permission (break instead of exit)
365 * - New nwid & encoding setting (Wireless Extension 9)
367 * Changes made for release in 3.1.12 :
368 * ----------------------------------
369 * - reworked wv_82593_cmd to avoid using the IRQ handler and doing
370 * ugly things with interrupts.
371 * - Add IRQ protection in 82593_config/ru_start/ru_stop/watchdog
372 * - Update to new network API (softnet - 2.3.43) :
373 * o replace dev->tbusy (David + me)
374 * o replace dev->tstart (David + me)
375 * o remove dev->interrupt (David)
376 * o add SMP locking via spinlock in splxx (me)
377 * o add spinlock in interrupt handler (me)
378 * o use kernel watchdog instead of ours (me)
379 * o verify that all the changes make sense and work (me)
380 * - Re-sync kernel/pcmcia versions (not much actually)
381 * - A few other cleanups (David & me)...
383 * Changes made for release in 3.1.22 :
384 * ----------------------------------
385 * - Check that SMP works, remove annoying log message
387 * Changes made for release in 3.1.24 :
388 * ----------------------------------
389 * - Fix unfrequent card lockup when watchdog was reseting the hardware :
390 * o control first busy loop in wv_82593_cmd()
391 * o Extend spinlock protection in wv_hw_config()
393 * Changes made for release in 3.1.33 :
394 * ----------------------------------
395 * - Optional use new driver API for Wireless Extensions :
396 * o got rid of wavelan_ioctl()
397 * o use a bunch of iw_handler instead
399 * Changes made for release in 3.2.1 :
400 * ---------------------------------
401 * - Set dev->trans_start to avoid filling the logs
402 * (and generating useless abort commands)
403 * - Avoid deadlocks in mmc_out()/mmc_in()
407 * - Cleanup and integrate the roaming code
408 * (std debug, set DomainID, decay avg and co...)
411 /***************************** INCLUDES *****************************/
413 /* Linux headers that we need */
414 #include <linux/module.h>
415 #include <linux/kernel.h>
416 #include <linux/init.h>
417 #include <linux/sched.h>
418 #include <linux/ptrace.h>
419 #include <linux/slab.h>
420 #include <linux/string.h>
421 #include <linux/timer.h>
422 #include <linux/interrupt.h>
423 #include <linux/spinlock.h>
424 #include <linux/in.h>
425 #include <linux/delay.h>
426 #include <linux/bitops.h>
427 #include <asm/uaccess.h>
429 #include <asm/system.h>
431 #include <linux/netdevice.h>
432 #include <linux/etherdevice.h>
433 #include <linux/skbuff.h>
434 #include <linux/if_arp.h>
435 #include <linux/ioport.h>
436 #include <linux/fcntl.h>
437 #include <linux/ethtool.h>
438 #include <linux/wireless.h> /* Wireless extensions */
439 #include <net/iw_handler.h> /* New driver API */
441 /* Pcmcia headers that we need */
442 #include <pcmcia/cs_types.h>
443 #include <pcmcia/cs.h>
444 #include <pcmcia/cistpl.h>
445 #include <pcmcia/cisreg.h>
446 #include <pcmcia/ds.h>
448 /* Wavelan declarations */
449 #include <linux/i82593.h> /* Definitions for the Intel chip */
451 #include "wavelan_cs.h" /* Others bits of the hardware */
453 /************************** DRIVER OPTIONS **************************/
455 * `#define' or `#undef' the following constant to change the behaviour
458 #define WAVELAN_ROAMING /* Include experimental roaming code */
459 #undef WAVELAN_ROAMING_EXT /* Enable roaming wireless extensions */
460 #undef SET_PSA_CRC /* Set the CRC in PSA (slower) */
461 #define USE_PSA_CONFIG /* Use info from the PSA */
462 #undef EEPROM_IS_PROTECTED /* Doesn't seem to be necessary */
463 #define MULTICAST_AVOID /* Avoid extra multicast (I'm sceptical) */
464 #undef SET_MAC_ADDRESS /* Experimental */
466 /* Warning : these stuff will slow down the driver... */
467 #define WIRELESS_SPY /* Enable spying addresses */
468 #undef HISTOGRAM /* Enable histogram of sig level... */
470 /****************************** DEBUG ******************************/
472 #undef DEBUG_MODULE_TRACE /* Module insertion/removal */
473 #undef DEBUG_CALLBACK_TRACE /* Calls made by Linux */
474 #undef DEBUG_INTERRUPT_TRACE /* Calls to handler */
475 #undef DEBUG_INTERRUPT_INFO /* type of interrupt & so on */
476 #define DEBUG_INTERRUPT_ERROR /* problems */
477 #undef DEBUG_CONFIG_TRACE /* Trace the config functions */
478 #undef DEBUG_CONFIG_INFO /* What's going on... */
479 #define DEBUG_CONFIG_ERRORS /* Errors on configuration */
480 #undef DEBUG_TX_TRACE /* Transmission calls */
481 #undef DEBUG_TX_INFO /* Header of the transmitted packet */
482 #undef DEBUG_TX_FAIL /* Normal failure conditions */
483 #define DEBUG_TX_ERROR /* Unexpected conditions */
484 #undef DEBUG_RX_TRACE /* Transmission calls */
485 #undef DEBUG_RX_INFO /* Header of the transmitted packet */
486 #undef DEBUG_RX_FAIL /* Normal failure conditions */
487 #define DEBUG_RX_ERROR /* Unexpected conditions */
488 #undef DEBUG_PACKET_DUMP /* Dump packet on the screen */
489 #undef DEBUG_IOCTL_TRACE /* Misc call by Linux */
490 #undef DEBUG_IOCTL_INFO /* Various debug info */
491 #define DEBUG_IOCTL_ERROR /* What's going wrong */
492 #define DEBUG_BASIC_SHOW /* Show basic startup info */
493 #undef DEBUG_VERSION_SHOW /* Print version info */
494 #undef DEBUG_PSA_SHOW /* Dump psa to screen */
495 #undef DEBUG_MMC_SHOW /* Dump mmc to screen */
496 #undef DEBUG_SHOW_UNUSED /* Show also unused fields */
497 #undef DEBUG_I82593_SHOW /* Show i82593 status */
498 #undef DEBUG_DEVICE_SHOW /* Show device parameters */
500 /************************ CONSTANTS & MACROS ************************/
502 #ifdef DEBUG_VERSION_SHOW
503 static const char *version = "wavelan_cs.c : v24 (SMP + wireless extensions) 11/1/02\n";
506 /* Watchdog temporisation */
507 #define WATCHDOG_JIFFIES (256*HZ/100)
509 /* Fix a bug in some old wireless extension definitions */
510 #ifndef IW_ESSID_MAX_SIZE
511 #define IW_ESSID_MAX_SIZE 32
514 /* ------------------------ PRIVATE IOCTL ------------------------ */
516 #define SIOCSIPQTHR SIOCIWFIRSTPRIV /* Set quality threshold */
517 #define SIOCGIPQTHR (SIOCIWFIRSTPRIV + 1) /* Get quality threshold */
518 #define SIOCSIPROAM (SIOCIWFIRSTPRIV + 2) /* Set roaming state */
519 #define SIOCGIPROAM (SIOCIWFIRSTPRIV + 3) /* Get roaming state */
521 #define SIOCSIPHISTO (SIOCIWFIRSTPRIV + 4) /* Set histogram ranges */
522 #define SIOCGIPHISTO (SIOCIWFIRSTPRIV + 5) /* Get histogram values */
524 /*************************** WaveLAN Roaming **************************/
525 #ifdef WAVELAN_ROAMING /* Conditional compile, see above in options */
527 #define WAVELAN_ROAMING_DEBUG 0 /* 1 = Trace of handover decisions */
528 /* 2 = Info on each beacon rcvd... */
529 #define MAX_WAVEPOINTS 7 /* Max visible at one time */
530 #define WAVEPOINT_HISTORY 5 /* SNR sample history slow search */
531 #define WAVEPOINT_FAST_HISTORY 2 /* SNR sample history fast search */
532 #define SEARCH_THRESH_LOW 10 /* SNR to enter cell search */
533 #define SEARCH_THRESH_HIGH 13 /* SNR to leave cell search */
534 #define WAVELAN_ROAMING_DELTA 1 /* Hysteresis value (+/- SNR) */
535 #define CELL_TIMEOUT (2*HZ) /* in jiffies */
537 #define FAST_CELL_SEARCH 1 /* Boolean values... */
538 #define NWID_PROMISC 1 /* for code clarity. */
540 typedef struct wavepoint_beacon {
541 unsigned char dsap, /* Unused */
544 O, U, I, /* Unused */
545 spec_id1, /* Unused */
546 spec_id2, /* Unused */
547 pdu_type, /* Unused */
548 seq; /* WavePoint beacon sequence number */
549 __be16 domain_id, /* WavePoint Domain ID */
550 nwid; /* WavePoint NWID */
553 typedef struct wavepoint_history {
554 unsigned short nwid; /* WavePoint's NWID */
555 int average_slow; /* SNR running average */
556 int average_fast; /* SNR running average */
557 unsigned char sigqual[WAVEPOINT_HISTORY]; /* Ringbuffer of recent SNR's */
558 unsigned char qualptr; /* Index into ringbuffer */
559 unsigned char last_seq; /* Last seq. no seen for WavePoint */
560 struct wavepoint_history *next; /* Next WavePoint in table */
561 struct wavepoint_history *prev; /* Previous WavePoint in table */
562 unsigned long last_seen; /* Time of last beacon recvd, jiffies */
565 struct wavepoint_table {
566 wavepoint_history *head; /* Start of ringbuffer */
567 int num_wavepoints; /* No. of WavePoints visible */
568 unsigned char locked; /* Table lock */
571 #endif /* WAVELAN_ROAMING */
573 /****************************** TYPES ******************************/
576 typedef struct iw_statistics iw_stats;
577 typedef struct iw_quality iw_qual;
578 typedef struct iw_freq iw_freq;
579 typedef struct net_local net_local;
580 typedef struct timer_list timer_list;
583 typedef u_char mac_addr[WAVELAN_ADDR_SIZE]; /* Hardware address */
586 * Static specific data for the interface.
588 * For each network interface, Linux keep data in two structure. "device"
589 * keep the generic data (same format for everybody) and "net_local" keep
590 * the additional specific data.
593 dev_node_t node; /* ???? What is this stuff ???? */
594 struct net_device *dev; /* Reverse link... */
595 spinlock_t spinlock; /* Serialize access to the hardware (SMP) */
596 struct pcmcia_device *link; /* pcmcia structure */
597 int nresets; /* Number of hw resets */
598 u_char configured; /* If it is configured */
599 u_char reconfig_82593; /* Need to reconfigure the controller */
600 u_char promiscuous; /* Promiscuous mode */
601 u_char allmulticast; /* All Multicast mode */
602 int mc_count; /* Number of multicast addresses */
604 int stop; /* Current i82593 Stop Hit Register */
605 int rfp; /* Last DMA machine receive pointer */
606 int overrunning; /* Receiver overrun flag */
608 iw_stats wstats; /* Wireless specific stats */
610 struct iw_spy_data spy_data;
611 struct iw_public_data wireless_data;
614 int his_number; /* Number of intervals */
615 u_char his_range[16]; /* Boundaries of interval ]n-1; n] */
616 u_long his_sum[16]; /* Sum in interval */
617 #endif /* HISTOGRAM */
618 #ifdef WAVELAN_ROAMING
619 u_long domain_id; /* Domain ID we lock on for roaming */
620 int filter_domains; /* Check Domain ID of beacon found */
621 struct wavepoint_table wavepoint_table; /* Table of visible WavePoints*/
622 wavepoint_history *curr_point; /* Current wavepoint */
623 int cell_search; /* Searching for new cell? */
624 struct timer_list cell_timer; /* Garbage collection */
625 #endif /* WAVELAN_ROAMING */
629 /* ----------------- MODEM MANAGEMENT SUBROUTINES ----------------- */
630 static inline u_char /* data */
631 hasr_read(u_long); /* Read the host interface : base address */
633 hacr_write(u_long, /* Write to host interface : base address */
635 hacr_write_slow(u_long,
638 psa_read(struct net_device *, /* Read the Parameter Storage Area */
639 int, /* offset in PSA */
640 u_char *, /* buffer to fill */
641 int), /* size to read */
642 psa_write(struct net_device *, /* Write to the PSA */
643 int, /* Offset in psa */
644 u_char *, /* Buffer in memory */
645 int); /* Length of buffer */
647 mmc_out(u_long, /* Write 1 byte to the Modem Manag Control */
650 mmc_write(u_long, /* Write n bytes to the MMC */
654 static u_char /* Read 1 byte from the MMC */
658 mmc_read(u_long, /* Read n bytes from the MMC */
662 fee_wait(u_long, /* Wait for frequency EEprom : base address */
663 int, /* Base delay to wait for */
664 int); /* Number of time to wait */
666 fee_read(u_long, /* Read the frequency EEprom : base address */
667 u_short, /* destination offset */
668 u_short *, /* data buffer */
669 int); /* number of registers */
670 /* ---------------------- I82593 SUBROUTINES ----------------------- */
672 wv_82593_cmd(struct net_device *, /* synchronously send a command to i82593 */
677 wv_diag(struct net_device *); /* Diagnostique the i82593 */
679 read_ringbuf(struct net_device *, /* Read a receive buffer */
684 wv_82593_reconfig(struct net_device *); /* Reconfigure the controller */
685 /* ------------------- DEBUG & INFO SUBROUTINES ------------------- */
687 wv_init_info(struct net_device *); /* display startup info */
688 /* ------------------- IOCTL, STATS & RECONFIG ------------------- */
690 wavelan_get_wireless_stats(struct net_device *);
691 /* ----------------------- PACKET RECEPTION ----------------------- */
693 wv_start_of_frame(struct net_device *, /* Seek beggining of current frame */
694 int, /* end of frame */
695 int); /* start of buffer */
697 wv_packet_read(struct net_device *, /* Read a packet from a frame */
700 wv_packet_rcv(struct net_device *); /* Read all packets waiting */
701 /* --------------------- PACKET TRANSMISSION --------------------- */
703 wv_packet_write(struct net_device *, /* Write a packet to the Tx buffer */
707 wavelan_packet_xmit(struct sk_buff *, /* Send a packet */
708 struct net_device *);
709 /* -------------------- HARDWARE CONFIGURATION -------------------- */
711 wv_mmc_init(struct net_device *); /* Initialize the modem */
713 wv_ru_stop(struct net_device *), /* Stop the i82593 receiver unit */
714 wv_ru_start(struct net_device *); /* Start the i82593 receiver unit */
716 wv_82593_config(struct net_device *); /* Configure the i82593 */
718 wv_pcmcia_reset(struct net_device *); /* Reset the pcmcia interface */
720 wv_hw_config(struct net_device *); /* Reset & configure the whole hardware */
722 wv_hw_reset(struct net_device *); /* Same, + start receiver unit */
724 wv_pcmcia_config(struct pcmcia_device *); /* Configure the pcmcia interface */
726 wv_pcmcia_release(struct pcmcia_device *);/* Remove a device */
727 /* ---------------------- INTERRUPT HANDLING ---------------------- */
729 wavelan_interrupt(int, /* Interrupt handler */
732 wavelan_watchdog(struct net_device *); /* Transmission watchdog */
733 /* ------------------- CONFIGURATION CALLBACKS ------------------- */
735 wavelan_open(struct net_device *), /* Open the device */
736 wavelan_close(struct net_device *); /* Close the device */
738 wavelan_detach(struct pcmcia_device *p_dev); /* Destroy a removed device */
740 /**************************** VARIABLES ****************************/
743 * Parameters that can be set with 'insmod'
744 * The exact syntax is 'insmod wavelan_cs.o <var>=<value>'
747 /* Shared memory speed, in ns */
748 static int mem_speed;
750 /* New module interface */
751 module_param(mem_speed, int, 0);
753 #ifdef WAVELAN_ROAMING /* Conditional compile, see above in options */
754 /* Enable roaming mode ? No ! Please keep this to 0 */
755 static int do_roaming;
756 module_param(do_roaming, bool, 0);
757 #endif /* WAVELAN_ROAMING */
759 MODULE_LICENSE("GPL");
761 #endif /* WAVELAN_CS_P_H */