6 * Reorganisation and extension of the driver.
8 * This file contains all definitions and declarations necessary for the
9 * WaveLAN ISA driver. This file is a private header, so it should
10 * be included only in wavelan.c!
16 /************************** DOCUMENTATION ***************************/
18 * This driver provides a Linux interface to the WaveLAN ISA 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 * WaveLANs are also distributed by DEC (RoamAbout DS) and Digital Ocean.
23 * To learn how to use this driver, read the NET3 HOWTO.
24 * If you want to exploit the many other functionalities, read the comments
27 * This driver is the result of the effort of many people (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 SET_PSA_CRC, to have your card correctly recognised by
62 * an access point and the Point-to-Point diagnostic tool.
63 * o USE_PSA_CONFIG, to read configuration from the PSA (EEprom)
64 * (otherwise we always start afresh with some defaults)
66 * wavelan.o is too darned big
67 * ---------------------------
68 * That's true! There is a very simple way to reduce the driver
69 * object by 33%! Comment out the following line:
70 * #include <linux/wireless.h>
71 * Other compile options can also reduce the size of it...
73 * MAC address and hardware detection:
74 * -----------------------------------
75 * The detection code for the WaveLAN checks that the first three
76 * octets of the MAC address fit the company code. This type of
77 * detection works well for AT&T cards (because the AT&T code is
78 * hardcoded in wavelan.h), but of course will fail for other
81 * If you are sure that your card is derived from the WaveLAN,
82 * here is the way to configure it:
83 * 1) Get your MAC address
84 * a) With your card utilities (wfreqsel, instconf, etc.)
86 * o compile the kernel with DEBUG_CONFIG_INFO enabled
87 * o Boot and look the card messages
88 * 2) Set your MAC code (3 octets) in MAC_ADDRESSES[][3] (wavelan.h)
89 * 3) Compile and verify
90 * 4) Send me the MAC code. I will include it in the next version.
94 /* --------------------- WIRELESS EXTENSIONS --------------------- */
96 * This driver is the first to support "wireless extensions".
97 * This set of extensions provides a standard way to control the wireless
98 * characteristics of the hardware. Applications such as mobile IP may
99 * take advantage of it.
101 * It might be a good idea as well to fetch the wireless tools to
102 * configure the device and play a bit.
105 /* ---------------------------- FILES ---------------------------- */
107 * wavelan.c: actual code for the driver: C functions
109 * wavelan.p.h: private header: local types and variables for driver
111 * wavelan.h: description of the hardware interface and structs
113 * i82586.h: description of the Ethernet controller
116 /* --------------------------- HISTORY --------------------------- */
118 * This is based on information in the drivers' headers. It may not be
119 * accurate, and I guarantee only my best effort.
121 * The history of the WaveLAN drivers is as complicated as the history of
122 * the WaveLAN itself (NCR -> AT&T -> Lucent).
124 * It all started with Anders Klemets <klemets@paul.rutgers.edu>
125 * writing a WaveLAN ISA driver for the Mach microkernel. Girish
126 * Welling <welling@paul.rutgers.edu> had also worked on it.
127 * Keith Moore modified this for the PCMCIA hardware.
129 * Robert Morris <rtm@das.harvard.edu> ported these two drivers to BSDI
130 * and added specific PCMCIA support (there is currently no equivalent
131 * of the PCMCIA package under BSD).
133 * Jim Binkley <jrb@cs.pdx.edu> ported both BSDI drivers to FreeBSD.
135 * Bruce Janson <bruce@cs.usyd.edu.au> ported the BSDI ISA driver to Linux.
137 * Anthony D. Joseph <adj@lcs.mit.edu> started to modify Bruce's driver
138 * (with help of the BSDI PCMCIA driver) for PCMCIA.
139 * Yunzhou Li <yunzhou@strat.iol.unh.edu> finished this work.
140 * Joe Finney <joe@comp.lancs.ac.uk> patched the driver to start
141 * 2.00 cards correctly (2.4 GHz with frequency selection).
142 * David Hinds <dahinds@users.sourceforge.net> integrated the whole in his
143 * PCMCIA package (and bug corrections).
145 * I (Jean Tourrilhes - jt@hplb.hpl.hp.com) then started to make some
146 * patches to the PCMCIA driver. Later, I added code in the ISA driver
147 * for Wireless Extensions and full support of frequency selection
148 * cards. Then, I did the same to the PCMCIA driver, and did some
149 * reorganisation. Finally, I came back to the ISA driver to
150 * upgrade it at the same level as the PCMCIA one and reorganise
152 * Loeke Brederveld <lbrederv@wavelan.com> from Lucent has given me
153 * much needed information on the WaveLAN hardware.
156 /* The original copyrights and literature mention others' names and
157 * credits. I don't know what their part in this development was.
160 /* By the way, for the copyright and legal stuff:
161 * almost everybody wrote code under the GNU or BSD license (or similar),
162 * and want their original copyright to remain somewhere in the
163 * code (for myself, I go with the GPL).
164 * Nobody wants to take responsibility for anything, except the fame.
167 /* --------------------------- CREDITS --------------------------- */
169 * This software was developed as a component of the
170 * Linux operating system.
171 * It is based on other device drivers and information
172 * either written or supplied by:
173 * Ajay Bakre <bakre@paul.rutgers.edu>,
174 * Donald Becker <becker@cesdis.gsfc.nasa.gov>,
175 * Loeke Brederveld <Loeke.Brederveld@Utrecht.NCR.com>,
176 * Brent Elphick <belphick@uwaterloo.ca>,
177 * Anders Klemets <klemets@it.kth.se>,
178 * Vladimir V. Kolpakov <w@stier.koenig.ru>,
179 * Marc Meertens <Marc.Meertens@Utrecht.NCR.com>,
180 * Pauline Middelink <middelin@polyware.iaf.nl>,
181 * Robert Morris <rtm@das.harvard.edu>,
182 * Jean Tourrilhes <jt@hpl.hp.com>,
183 * Girish Welling <welling@paul.rutgers.edu>,
184 * Clark Woodworth <clark@hiway1.exit109.com>
185 * Yongguang Zhang <ygz@isl.hrl.hac.com>
188 * James Ashton <jaa101@syseng.anu.edu.au>,
189 * Alan Cox <alan@lxorguk.ukuu.org.uk>,
190 * Allan Creighton <allanc@cs.usyd.edu.au>,
191 * Matthew Geier <matthew@cs.usyd.edu.au>,
192 * Remo di Giovanni <remo@cs.usyd.edu.au>,
193 * Eckhard Grah <grah@wrcs1.urz.uni-wuppertal.de>,
194 * Vipul Gupta <vgupta@cs.binghamton.edu>,
195 * Mark Hagan <mhagan@wtcpost.daytonoh.NCR.COM>,
196 * Tim Nicholson <tim@cs.usyd.edu.au>,
197 * Ian Parkin <ian@cs.usyd.edu.au>,
198 * John Rosenberg <johnr@cs.usyd.edu.au>,
199 * George Rossi <george@phm.gov.au>,
200 * Arthur Scott <arthur@cs.usyd.edu.au>,
201 * Stanislav Sinyagin <stas@isf.ru>
202 * and Peter Storey for their assistance and advice.
204 * Additional Credits:
206 * My development has been done initially under Debian 1.1 (Linux 2.0.x)
207 * and now under Debian 2.2, initially with an HP Vectra XP/60, and now
208 * an HP Vectra XP/90.
212 /* ------------------------- IMPROVEMENTS ------------------------- */
216 * Changes made in first pre-release:
217 * ----------------------------------
218 * - reorganisation of the code, function name change
219 * - creation of private header (wavelan.p.h)
220 * - reorganised debug messages
221 * - more comments, history, etc.
222 * - mmc_init: configure the PSA if not done
223 * - mmc_init: correct default value of level threshold for PCMCIA
224 * - mmc_init: 2.00 detection better code for 2.00 initialization
225 * - better info at startup
226 * - IRQ setting (note: this setting is permanent)
227 * - watchdog: change strategy (and solve module removal problems)
228 * - add wireless extensions (ioctl and get_wireless_stats)
229 * get/set nwid/frequency on fly, info for /proc/net/wireless
230 * - more wireless extensions: SETSPY and GETSPY
231 * - make wireless extensions optional
232 * - private ioctl to set/get quality and level threshold, histogram
233 * - remove /proc/net/wavelan
234 * - suppress useless stuff from lp (net_local)
235 * - kernel 2.1 support (copy_to/from_user instead of memcpy_to/fromfs)
236 * - add message level (debug stuff in /var/adm/debug and errors not
237 * displayed at console and still in /var/adm/messages)
238 * - multi device support
239 * - start fixing the probe (init code)
242 * - many other minor details and cleanups
244 * Changes made in second pre-release:
245 * -----------------------------------
246 * - clean up init code (probe and module init)
247 * - better multiple device support (module)
248 * - name assignment (module)
250 * Changes made in third pre-release:
251 * ----------------------------------
252 * - be more conservative on timers
253 * - preliminary support for multicast (I still lack some details)
255 * Changes made in fourth pre-release:
256 * -----------------------------------
257 * - multicast (revisited and finished)
258 * - avoid reset in set_multicast_list (a really big hack)
259 * if somebody could apply this code for other i82586 based drivers
260 * - share onboard memory 75% RU and 25% CU (instead of 50/50)
262 * Changes made for release in 2.1.15:
263 * -----------------------------------
264 * - change the detection code for multi manufacturer code support
266 * Changes made for release in 2.1.17:
267 * -----------------------------------
268 * - update to wireless extensions changes
269 * - silly bug in card initial configuration (psa_conf_status)
271 * Changes made for release in 2.1.27 & 2.0.30:
272 * --------------------------------------------
273 * - small bug in debug code (probably not the last one...)
274 * - remove extern keyword for wavelan_probe()
275 * - level threshold is now a standard wireless extension (version 4 !)
276 * - modules parameters types (new module interface)
278 * Changes made for release in 2.1.36:
279 * -----------------------------------
280 * - byte count stats (courtesy of David Hinds)
281 * - remove dev_tint stuff (courtesy of David Hinds)
282 * - encryption setting from Brent Elphick (thanks a lot!)
283 * - 'ioaddr' to 'u_long' for the Alpha (thanks to Stanislav Sinyagin)
285 * Other changes (not by me) :
286 * -------------------------
287 * - Spelling and gramar "rectification".
289 * Changes made for release in 2.0.37 & 2.2.2 :
290 * ------------------------------------------
291 * - Correct status in /proc/net/wireless
292 * - Set PSA CRC to make PtP diagnostic tool happy (Bob Gray)
293 * - Module init code don't fail if we found at least one card in
294 * the address list (Karlis Peisenieks)
295 * - Missing parenthesis (Christopher Peterson)
296 * - Correct i82586 configuration parameters
297 * - Encryption initialisation bug (Robert McCormack)
298 * - New mac addresses detected in the probe
299 * - Increase watchdog for busy environments
301 * Changes made for release in 2.0.38 & 2.2.7 :
302 * ------------------------------------------
303 * - Correct the reception logic to better report errors and avoid
304 * sending bogus packet up the stack
305 * - Delay RU config to avoid corrupting first received packet
306 * - Change config completion code (to actually check something)
307 * - Avoid reading out of bound in skbuf to transmit
308 * - Rectify a lot of (useless) debugging code
309 * - Change the way to `#ifdef SET_PSA_CRC'
311 * Changes made for release in 2.2.11 & 2.3.13 :
312 * -------------------------------------------
313 * - Change e-mail and web page addresses
314 * - Watchdog timer is now correctly expressed in HZ, not in jiffies
315 * - Add channel number to the list of frequencies in range
316 * - Add the (short) list of bit-rates in range
317 * - Developp a new sensitivity... (sens.value & sens.fixed)
319 * Changes made for release in 2.2.14 & 2.3.23 :
320 * -------------------------------------------
321 * - Fix check for root permission (break instead of exit)
322 * - New nwid & encoding setting (Wireless Extension 9)
324 * Changes made for release in 2.3.49 :
325 * ----------------------------------
326 * - Indentation reformating (Alan)
327 * - Update to new network API (softnet - 2.3.43) :
328 * o replace dev->tbusy (Alan)
329 * o replace dev->tstart (Alan)
330 * o remove dev->interrupt (Alan)
331 * o add SMP locking via spinlock in splxx (me)
332 * o add spinlock in interrupt handler (me)
333 * o use kernel watchdog instead of ours (me)
334 * o increase watchdog timeout (kernel is more sensitive) (me)
335 * o verify that all the changes make sense and work (me)
336 * - Fixup a potential gotcha when reconfiguring and thighten a bit
337 * the interactions with Tx queue.
339 * Changes made for release in 2.4.0 :
340 * ---------------------------------
341 * - Fix spinlock stupid bugs that I left in. The driver is now SMP
342 * compliant and doesn't lockup at startup.
344 * Changes made for release in 2.5.2 :
345 * ---------------------------------
346 * - Use new driver API for Wireless Extensions :
347 * o got rid of wavelan_ioctl()
348 * o use a bunch of iw_handler instead
350 * Changes made for release in 2.5.35 :
351 * ----------------------------------
352 * - Set dev->trans_start to avoid filling the logs
353 * - Handle better spurious/bogus interrupt
354 * - Avoid deadlocks in mmc_out()/mmc_in()
358 * - roaming (see Pcmcia driver)
361 /***************************** INCLUDES *****************************/
363 #include <linux/module.h>
365 #include <linux/kernel.h>
366 #include <linux/sched.h>
367 #include <linux/types.h>
368 #include <linux/fcntl.h>
369 #include <linux/interrupt.h>
370 #include <linux/stat.h>
371 #include <linux/ptrace.h>
372 #include <linux/ioport.h>
373 #include <linux/in.h>
374 #include <linux/string.h>
375 #include <linux/delay.h>
376 #include <linux/bitops.h>
377 #include <asm/system.h>
380 #include <asm/uaccess.h>
381 #include <linux/errno.h>
382 #include <linux/netdevice.h>
383 #include <linux/etherdevice.h>
384 #include <linux/skbuff.h>
385 #include <linux/slab.h>
386 #include <linux/timer.h>
387 #include <linux/init.h>
389 #include <linux/wireless.h> /* Wireless extensions */
390 #include <net/iw_handler.h> /* Wireless handlers */
392 /* WaveLAN declarations */
396 /************************** DRIVER OPTIONS **************************/
398 * `#define' or `#undef' the following constant to change the behaviour
401 #undef SET_PSA_CRC /* Calculate and set the CRC on PSA (slower) */
402 #define USE_PSA_CONFIG /* Use info from the PSA. */
403 #undef EEPROM_IS_PROTECTED /* doesn't seem to be necessary */
404 #define MULTICAST_AVOID /* Avoid extra multicast (I'm sceptical). */
405 #undef SET_MAC_ADDRESS /* Experimental */
407 /* Warning: this stuff will slow down the driver. */
408 #define WIRELESS_SPY /* Enable spying addresses. */
409 #undef HISTOGRAM /* Enable histogram of signal level. */
411 /****************************** DEBUG ******************************/
413 #undef DEBUG_MODULE_TRACE /* module insertion/removal */
414 #undef DEBUG_CALLBACK_TRACE /* calls made by Linux */
415 #undef DEBUG_INTERRUPT_TRACE /* calls to handler */
416 #undef DEBUG_INTERRUPT_INFO /* type of interrupt and so on */
417 #define DEBUG_INTERRUPT_ERROR /* problems */
418 #undef DEBUG_CONFIG_TRACE /* Trace the config functions. */
419 #undef DEBUG_CONFIG_INFO /* what's going on */
420 #define DEBUG_CONFIG_ERROR /* errors on configuration */
421 #undef DEBUG_TX_TRACE /* transmission calls */
422 #undef DEBUG_TX_INFO /* header of the transmitted packet */
423 #undef DEBUG_TX_FAIL /* Normal failure conditions */
424 #define DEBUG_TX_ERROR /* Unexpected conditions */
425 #undef DEBUG_RX_TRACE /* transmission calls */
426 #undef DEBUG_RX_INFO /* header of the received packet */
427 #undef DEBUG_RX_FAIL /* Normal failure conditions */
428 #define DEBUG_RX_ERROR /* Unexpected conditions */
430 #undef DEBUG_PACKET_DUMP /* Dump packet on the screen if defined to 32. */
431 #undef DEBUG_IOCTL_TRACE /* misc. call by Linux */
432 #undef DEBUG_IOCTL_INFO /* various debugging info */
433 #define DEBUG_IOCTL_ERROR /* what's going wrong */
434 #define DEBUG_BASIC_SHOW /* Show basic startup info. */
435 #undef DEBUG_VERSION_SHOW /* Print version info. */
436 #undef DEBUG_PSA_SHOW /* Dump PSA to screen. */
437 #undef DEBUG_MMC_SHOW /* Dump mmc to screen. */
438 #undef DEBUG_SHOW_UNUSED /* Show unused fields too. */
439 #undef DEBUG_I82586_SHOW /* Show i82586 status. */
440 #undef DEBUG_DEVICE_SHOW /* Show device parameters. */
442 /************************ CONSTANTS & MACROS ************************/
444 #ifdef DEBUG_VERSION_SHOW
445 static const char *version = "wavelan.c : v24 (SMP + wireless extensions) 11/12/01\n";
448 /* Watchdog temporisation */
449 #define WATCHDOG_JIFFIES (512*HZ/100)
451 /* ------------------------ PRIVATE IOCTL ------------------------ */
453 #define SIOCSIPQTHR SIOCIWFIRSTPRIV /* Set quality threshold */
454 #define SIOCGIPQTHR SIOCIWFIRSTPRIV + 1 /* Get quality threshold */
456 #define SIOCSIPHISTO SIOCIWFIRSTPRIV + 2 /* Set histogram ranges */
457 #define SIOCGIPHISTO SIOCIWFIRSTPRIV + 3 /* Get histogram values */
459 /****************************** TYPES ******************************/
462 typedef struct iw_statistics iw_stats;
463 typedef struct iw_quality iw_qual;
464 typedef struct iw_freq iw_freq;typedef struct net_local net_local;
465 typedef struct timer_list timer_list;
468 typedef u_char mac_addr[WAVELAN_ADDR_SIZE]; /* Hardware address */
471 * Static specific data for the interface.
473 * For each network interface, Linux keeps data in two structures: "device"
474 * keeps the generic data (same format for everybody) and "net_local" keeps
475 * additional specific data.
479 net_local * next; /* linked list of the devices */
480 struct net_device * dev; /* reverse link */
481 spinlock_t spinlock; /* Serialize access to the hardware (SMP) */
482 int nresets; /* number of hardware resets */
483 u_char reconfig_82586; /* We need to reconfigure the controller. */
484 u_char promiscuous; /* promiscuous mode */
485 int mc_count; /* number of multicast addresses */
486 u_short hacr; /* current host interface state */
491 u_short tx_first_free;
492 u_short tx_first_in_use;
494 iw_stats wstats; /* Wireless-specific statistics */
496 struct iw_spy_data spy_data;
497 struct iw_public_data wireless_data;
500 int his_number; /* number of intervals */
501 u_char his_range[16]; /* boundaries of interval ]n-1; n] */
502 u_long his_sum[16]; /* sum in interval */
503 #endif /* HISTOGRAM */
506 /**************************** PROTOTYPES ****************************/
508 /* ----------------------- MISC. SUBROUTINES ------------------------ */
512 wv_psa_to_irq(u_char);
513 /* ------------------- HOST ADAPTER SUBROUTINES ------------------- */
514 static inline u_short /* data */
515 hasr_read(u_long); /* Read the host interface: base address */
517 hacr_write(u_long, /* Write to host interface: base address */
519 hacr_write_slow(u_long,
521 set_chan_attn(u_long, /* ioaddr */
523 wv_hacr_reset(u_long), /* ioaddr */
524 wv_16_off(u_long, /* ioaddr */
526 wv_16_on(u_long, /* ioaddr */
528 wv_ints_off(struct net_device *),
529 wv_ints_on(struct net_device *);
530 /* ----------------- MODEM MANAGEMENT SUBROUTINES ----------------- */
532 psa_read(u_long, /* Read the Parameter Storage Area. */
534 int, /* offset in PSA */
535 u_char *, /* buffer to fill */
536 int), /* size to read */
537 psa_write(u_long, /* Write to the PSA. */
539 int, /* offset in PSA */
540 u_char *, /* buffer in memory */
541 int); /* length of buffer */
543 mmc_out(u_long, /* Write 1 byte to the Modem Manag Control. */
546 mmc_write(u_long, /* Write n bytes to the MMC. */
550 static inline u_char /* Read 1 byte from the MMC. */
554 mmc_read(u_long, /* Read n bytes from the MMC. */
558 fee_wait(u_long, /* Wait for frequency EEPROM: base address */
559 int, /* base delay to wait for */
560 int); /* time to wait */
562 fee_read(u_long, /* Read the frequency EEPROM: base address */
563 u_short, /* destination offset */
564 u_short *, /* data buffer */
565 int); /* number of registers */
566 /* ---------------------- I82586 SUBROUTINES ----------------------- */
567 static /*inline*/ void
568 obram_read(u_long, /* ioaddr */
573 obram_write(u_long, /* ioaddr */
578 wv_ack(struct net_device *);
580 wv_synchronous_cmd(struct net_device *,
582 wv_config_complete(struct net_device *,
586 wv_complete(struct net_device *,
590 wv_82586_reconfig(struct net_device *);
591 /* ------------------- DEBUG & INFO SUBROUTINES ------------------- */
592 #ifdef DEBUG_I82586_SHOW
594 wv_scb_show(unsigned short);
597 wv_init_info(struct net_device *); /* display startup info */
598 /* ------------------- IOCTL, STATS & RECONFIG ------------------- */
600 wavelan_get_wireless_stats(struct net_device *);
602 wavelan_set_multicast_list(struct net_device *);
603 /* ----------------------- PACKET RECEPTION ----------------------- */
605 wv_packet_read(struct net_device *, /* Read a packet from a frame. */
608 wv_receive(struct net_device *); /* Read all packets waiting. */
609 /* --------------------- PACKET TRANSMISSION --------------------- */
611 wv_packet_write(struct net_device *, /* Write a packet to the Tx buffer. */
615 wavelan_packet_xmit(struct sk_buff *, /* Send a packet. */
616 struct net_device *);
617 /* -------------------- HARDWARE CONFIGURATION -------------------- */
619 wv_mmc_init(struct net_device *), /* Initialize the modem. */
620 wv_ru_start(struct net_device *), /* Start the i82586 receiver unit. */
621 wv_cu_start(struct net_device *), /* Start the i82586 command unit. */
622 wv_82586_start(struct net_device *); /* Start the i82586. */
624 wv_82586_config(struct net_device *); /* Configure the i82586. */
626 wv_82586_stop(struct net_device *);
628 wv_hw_reset(struct net_device *), /* Reset the WaveLAN hardware. */
629 wv_check_ioaddr(u_long, /* ioaddr */
630 u_char *); /* mac address (read) */
631 /* ---------------------- INTERRUPT HANDLING ---------------------- */
633 wavelan_interrupt(int, /* interrupt handler */
636 wavelan_watchdog(struct net_device *); /* transmission watchdog */
637 /* ------------------- CONFIGURATION CALLBACKS ------------------- */
639 wavelan_open(struct net_device *), /* Open the device. */
640 wavelan_close(struct net_device *), /* Close the device. */
641 wavelan_config(struct net_device *, unsigned short);/* Configure one device. */
642 extern struct net_device *wavelan_probe(int unit); /* See Space.c. */
644 /**************************** VARIABLES ****************************/
647 * This is the root of the linked list of WaveLAN drivers
648 * It is use to verify that we don't reuse the same base address
649 * for two different drivers and to clean up when removing the module.
651 static net_local * wavelan_list = (net_local *) NULL;
654 * This table is used to translate the PSA value to IRQ number
657 static u_char irqvals[] =
666 * Table of the available I/O addresses (base addresses) for WaveLAN
668 static unsigned short iobase[] =
671 /* Leave out 0x3C0 for now -- seems to clash with some video
673 * Leave out the others too -- we will always use 0x390 and leave
674 * 0x300 for the Ethernet device.
675 * Jean II: 0x3E0 is fine as well.
677 0x300, 0x390, 0x3E0, 0x3C0
683 /* Parameters set by insmod */
686 static char *name[4];
687 module_param_array(io, int, NULL, 0);
688 module_param_array(irq, int, NULL, 0);
689 module_param_array(name, charp, NULL, 0);
691 MODULE_PARM_DESC(io, "WaveLAN I/O base address(es),required");
692 MODULE_PARM_DESC(irq, "WaveLAN IRQ number(s)");
693 MODULE_PARM_DESC(name, "WaveLAN interface neme(s)");
696 #endif /* WAVELAN_P_H */