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1/*
2 * WaveLAN ISA driver
3 *
4 * Jean II - HPLB '96
5 *
6 * Reorganisation and extension of the driver.
7 *
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!
11 */
12
13#ifndef WAVELAN_P_H
14#define WAVELAN_P_H
15
16/************************** DOCUMENTATION ***************************/
17/*
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.
22 *
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
25 * in the code.
26 *
27 * This driver is the result of the effort of many people (see below).
28 */
29
30/* ------------------------ SPECIFIC NOTES ------------------------ */
31/*
32 * Web page
33 * --------
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
36 *
37 * SMP
38 * ---
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
46 * the truth.
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 ;-).
49 *
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...
55 *
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)
65 *
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...
72 *
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
79 * manufacturers.
80 *
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.)
85 * b) With the driver:
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.
91 *
92 */
93
94/* --------------------- WIRELESS EXTENSIONS --------------------- */
95/*
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.
100 *
101 * You will need to enable the CONFIG_NET_RADIO define in the kernel
102 * configuration to enable the wireless extensions (this is the one
103 * giving access to the radio network device choice).
104 *
105 * It might also be a good idea as well to fetch the wireless tools to
106 * configure the device and play a bit.
107 */
108
109/* ---------------------------- FILES ---------------------------- */
110/*
111 * wavelan.c: actual code for the driver: C functions
112 *
113 * wavelan.p.h: private header: local types and variables for driver
114 *
115 * wavelan.h: description of the hardware interface and structs
116 *
117 * i82586.h: description of the Ethernet controller
118 */
119
120/* --------------------------- HISTORY --------------------------- */
121/*
122 * This is based on information in the drivers' headers. It may not be
123 * accurate, and I guarantee only my best effort.
124 *
125 * The history of the WaveLAN drivers is as complicated as the history of
126 * the WaveLAN itself (NCR -> AT&T -> Lucent).
127 *
128 * It all started with Anders Klemets <klemets@paul.rutgers.edu>
129 * writing a WaveLAN ISA driver for the Mach microkernel. Girish
130 * Welling <welling@paul.rutgers.edu> had also worked on it.
131 * Keith Moore modified this for the PCMCIA hardware.
132 *
133 * Robert Morris <rtm@das.harvard.edu> ported these two drivers to BSDI
134 * and added specific PCMCIA support (there is currently no equivalent
135 * of the PCMCIA package under BSD).
136 *
137 * Jim Binkley <jrb@cs.pdx.edu> ported both BSDI drivers to FreeBSD.
138 *
139 * Bruce Janson <bruce@cs.usyd.edu.au> ported the BSDI ISA driver to Linux.
140 *
141 * Anthony D. Joseph <adj@lcs.mit.edu> started to modify Bruce's driver
142 * (with help of the BSDI PCMCIA driver) for PCMCIA.
143 * Yunzhou Li <yunzhou@strat.iol.unh.edu> finished this work.
144 * Joe Finney <joe@comp.lancs.ac.uk> patched the driver to start
145 * 2.00 cards correctly (2.4 GHz with frequency selection).
146 * David Hinds <dahinds@users.sourceforge.net> integrated the whole in his
147 * PCMCIA package (and bug corrections).
148 *
149 * I (Jean Tourrilhes - jt@hplb.hpl.hp.com) then started to make some
150 * patches to the PCMCIA driver. Later, I added code in the ISA driver
151 * for Wireless Extensions and full support of frequency selection
152 * cards. Then, I did the same to the PCMCIA driver, and did some
153 * reorganisation. Finally, I came back to the ISA driver to
154 * upgrade it at the same level as the PCMCIA one and reorganise
155 * the code.
156 * Loeke Brederveld <lbrederv@wavelan.com> from Lucent has given me
157 * much needed information on the WaveLAN hardware.
158 */
159
160/* The original copyrights and literature mention others' names and
161 * credits. I don't know what their part in this development was.
162 */
163
164/* By the way, for the copyright and legal stuff:
165 * almost everybody wrote code under the GNU or BSD license (or similar),
166 * and want their original copyright to remain somewhere in the
167 * code (for myself, I go with the GPL).
168 * Nobody wants to take responsibility for anything, except the fame.
169 */
170
171/* --------------------------- CREDITS --------------------------- */
172/*
173 * This software was developed as a component of the
174 * Linux operating system.
175 * It is based on other device drivers and information
176 * either written or supplied by:
177 * Ajay Bakre <bakre@paul.rutgers.edu>,
178 * Donald Becker <becker@cesdis.gsfc.nasa.gov>,
179 * Loeke Brederveld <Loeke.Brederveld@Utrecht.NCR.com>,
180 * Brent Elphick <belphick@uwaterloo.ca>,
181 * Anders Klemets <klemets@it.kth.se>,
182 * Vladimir V. Kolpakov <w@stier.koenig.ru>,
183 * Marc Meertens <Marc.Meertens@Utrecht.NCR.com>,
184 * Pauline Middelink <middelin@polyware.iaf.nl>,
185 * Robert Morris <rtm@das.harvard.edu>,
186 * Jean Tourrilhes <jt@hpl.hp.com>,
187 * Girish Welling <welling@paul.rutgers.edu>,
188 * Clark Woodworth <clark@hiway1.exit109.com>
189 * Yongguang Zhang <ygz@isl.hrl.hac.com>
190 *
191 * Thanks go also to:
192 * James Ashton <jaa101@syseng.anu.edu.au>,
193 * Alan Cox <alan@redhat.com>,
194 * Allan Creighton <allanc@cs.usyd.edu.au>,
195 * Matthew Geier <matthew@cs.usyd.edu.au>,
196 * Remo di Giovanni <remo@cs.usyd.edu.au>,
197 * Eckhard Grah <grah@wrcs1.urz.uni-wuppertal.de>,
198 * Vipul Gupta <vgupta@cs.binghamton.edu>,
199 * Mark Hagan <mhagan@wtcpost.daytonoh.NCR.COM>,
200 * Tim Nicholson <tim@cs.usyd.edu.au>,
201 * Ian Parkin <ian@cs.usyd.edu.au>,
202 * John Rosenberg <johnr@cs.usyd.edu.au>,
203 * George Rossi <george@phm.gov.au>,
204 * Arthur Scott <arthur@cs.usyd.edu.au>,
205 * Stanislav Sinyagin <stas@isf.ru>
206 * and Peter Storey for their assistance and advice.
207 *
208 * Additional Credits:
209 *
210 * My development has been done initially under Debian 1.1 (Linux 2.0.x)
211 * and now under Debian 2.2, initially with an HP Vectra XP/60, and now
212 * an HP Vectra XP/90.
213 *
214 */
215
216/* ------------------------- IMPROVEMENTS ------------------------- */
217/*
218 * I proudly present:
219 *
220 * Changes made in first pre-release:
221 * ----------------------------------
222 * - reorganisation of the code, function name change
223 * - creation of private header (wavelan.p.h)
224 * - reorganised debug messages
225 * - more comments, history, etc.
226 * - mmc_init: configure the PSA if not done
227 * - mmc_init: correct default value of level threshold for PCMCIA
228 * - mmc_init: 2.00 detection better code for 2.00 initialization
229 * - better info at startup
230 * - IRQ setting (note: this setting is permanent)
231 * - watchdog: change strategy (and solve module removal problems)
232 * - add wireless extensions (ioctl and get_wireless_stats)
233 * get/set nwid/frequency on fly, info for /proc/net/wireless
234 * - more wireless extensions: SETSPY and GETSPY
235 * - make wireless extensions optional
236 * - private ioctl to set/get quality and level threshold, histogram
237 * - remove /proc/net/wavelan
238 * - suppress useless stuff from lp (net_local)
239 * - kernel 2.1 support (copy_to/from_user instead of memcpy_to/fromfs)
240 * - add message level (debug stuff in /var/adm/debug and errors not
241 * displayed at console and still in /var/adm/messages)
242 * - multi device support
243 * - start fixing the probe (init code)
244 * - more inlines
245 * - man page
246 * - many other minor details and cleanups
247 *
248 * Changes made in second pre-release:
249 * -----------------------------------
250 * - clean up init code (probe and module init)
251 * - better multiple device support (module)
252 * - name assignment (module)
253 *
254 * Changes made in third pre-release:
255 * ----------------------------------
256 * - be more conservative on timers
257 * - preliminary support for multicast (I still lack some details)
258 *
259 * Changes made in fourth pre-release:
260 * -----------------------------------
261 * - multicast (revisited and finished)
262 * - avoid reset in set_multicast_list (a really big hack)
263 * if somebody could apply this code for other i82586 based drivers
264 * - share onboard memory 75% RU and 25% CU (instead of 50/50)
265 *
266 * Changes made for release in 2.1.15:
267 * -----------------------------------
268 * - change the detection code for multi manufacturer code support
269 *
270 * Changes made for release in 2.1.17:
271 * -----------------------------------
272 * - update to wireless extensions changes
273 * - silly bug in card initial configuration (psa_conf_status)
274 *
275 * Changes made for release in 2.1.27 & 2.0.30:
276 * --------------------------------------------
277 * - small bug in debug code (probably not the last one...)
278 * - remove extern keyword for wavelan_probe()
279 * - level threshold is now a standard wireless extension (version 4 !)
280 * - modules parameters types (new module interface)
281 *
282 * Changes made for release in 2.1.36:
283 * -----------------------------------
284 * - byte count stats (courtesy of David Hinds)
285 * - remove dev_tint stuff (courtesy of David Hinds)
286 * - encryption setting from Brent Elphick (thanks a lot!)
287 * - 'ioaddr' to 'u_long' for the Alpha (thanks to Stanislav Sinyagin)
288 *
289 * Other changes (not by me) :
290 * -------------------------
291 * - Spelling and gramar "rectification".
292 *
293 * Changes made for release in 2.0.37 & 2.2.2 :
294 * ------------------------------------------
295 * - Correct status in /proc/net/wireless
296 * - Set PSA CRC to make PtP diagnostic tool happy (Bob Gray)
297 * - Module init code don't fail if we found at least one card in
298 * the address list (Karlis Peisenieks)
299 * - Missing parenthesis (Christopher Peterson)
300 * - Correct i82586 configuration parameters
301 * - Encryption initialisation bug (Robert McCormack)
302 * - New mac addresses detected in the probe
303 * - Increase watchdog for busy environments
304 *
305 * Changes made for release in 2.0.38 & 2.2.7 :
306 * ------------------------------------------
307 * - Correct the reception logic to better report errors and avoid
308 * sending bogus packet up the stack
309 * - Delay RU config to avoid corrupting first received packet
310 * - Change config completion code (to actually check something)
311 * - Avoid reading out of bound in skbuf to transmit
312 * - Rectify a lot of (useless) debugging code
313 * - Change the way to `#ifdef SET_PSA_CRC'
314 *
315 * Changes made for release in 2.2.11 & 2.3.13 :
316 * -------------------------------------------
317 * - Change e-mail and web page addresses
318 * - Watchdog timer is now correctly expressed in HZ, not in jiffies
319 * - Add channel number to the list of frequencies in range
320 * - Add the (short) list of bit-rates in range
321 * - Developp a new sensitivity... (sens.value & sens.fixed)
322 *
323 * Changes made for release in 2.2.14 & 2.3.23 :
324 * -------------------------------------------
325 * - Fix check for root permission (break instead of exit)
326 * - New nwid & encoding setting (Wireless Extension 9)
327 *
328 * Changes made for release in 2.3.49 :
329 * ----------------------------------
330 * - Indentation reformating (Alan)
331 * - Update to new network API (softnet - 2.3.43) :
332 * o replace dev->tbusy (Alan)
333 * o replace dev->tstart (Alan)
334 * o remove dev->interrupt (Alan)
335 * o add SMP locking via spinlock in splxx (me)
336 * o add spinlock in interrupt handler (me)
337 * o use kernel watchdog instead of ours (me)
338 * o increase watchdog timeout (kernel is more sensitive) (me)
339 * o verify that all the changes make sense and work (me)
340 * - Fixup a potential gotcha when reconfiguring and thighten a bit
341 * the interactions with Tx queue.
342 *
343 * Changes made for release in 2.4.0 :
344 * ---------------------------------
345 * - Fix spinlock stupid bugs that I left in. The driver is now SMP
346 * compliant and doesn't lockup at startup.
347 *
348 * Changes made for release in 2.5.2 :
349 * ---------------------------------
350 * - Use new driver API for Wireless Extensions :
351 * o got rid of wavelan_ioctl()
352 * o use a bunch of iw_handler instead
353 *
354 * Changes made for release in 2.5.35 :
355 * ----------------------------------
356 * - Set dev->trans_start to avoid filling the logs
357 * - Handle better spurious/bogus interrupt
358 * - Avoid deadlocks in mmc_out()/mmc_in()
359 *
360 * Wishes & dreams:
361 * ----------------
362 * - roaming (see Pcmcia driver)
363 */
364
365/***************************** INCLUDES *****************************/
366
367#include <linux/module.h>
368
369#include <linux/kernel.h>
370#include <linux/sched.h>
371#include <linux/types.h>
372#include <linux/fcntl.h>
373#include <linux/interrupt.h>
374#include <linux/stat.h>
375#include <linux/ptrace.h>
376#include <linux/ioport.h>
377#include <linux/in.h>
378#include <linux/string.h>
379#include <linux/delay.h>
380#include <linux/bitops.h>
381#include <asm/system.h>
382#include <asm/io.h>
383#include <asm/dma.h>
384#include <asm/uaccess.h>
385#include <linux/errno.h>
386#include <linux/netdevice.h>
387#include <linux/etherdevice.h>
388#include <linux/skbuff.h>
389#include <linux/slab.h>
390#include <linux/timer.h>
391#include <linux/init.h>
392
393#include <linux/wireless.h> /* Wireless extensions */
394#include <net/iw_handler.h> /* Wireless handlers */
395
396/* WaveLAN declarations */
397#include "i82586.h"
398#include "wavelan.h"
399
400/************************** DRIVER OPTIONS **************************/
401/*
402 * `#define' or `#undef' the following constant to change the behaviour
403 * of the driver...
404 */
405#undef SET_PSA_CRC /* Calculate and set the CRC on PSA (slower) */
406#define USE_PSA_CONFIG /* Use info from the PSA. */
407#undef STRUCT_CHECK /* Verify padding of structures. */
408#undef EEPROM_IS_PROTECTED /* doesn't seem to be necessary */
409#define MULTICAST_AVOID /* Avoid extra multicast (I'm sceptical). */
410#undef SET_MAC_ADDRESS /* Experimental */
411
412#ifdef WIRELESS_EXT /* If wireless extensions exist in the kernel */
413/* Warning: this stuff will slow down the driver. */
414#define WIRELESS_SPY /* Enable spying addresses. */
415#undef HISTOGRAM /* Enable histogram of signal level. */
416#endif
417
418/****************************** DEBUG ******************************/
419
420#undef DEBUG_MODULE_TRACE /* module insertion/removal */
421#undef DEBUG_CALLBACK_TRACE /* calls made by Linux */
422#undef DEBUG_INTERRUPT_TRACE /* calls to handler */
423#undef DEBUG_INTERRUPT_INFO /* type of interrupt and so on */
424#define DEBUG_INTERRUPT_ERROR /* problems */
425#undef DEBUG_CONFIG_TRACE /* Trace the config functions. */
426#undef DEBUG_CONFIG_INFO /* what's going on */
427#define DEBUG_CONFIG_ERROR /* errors on configuration */
428#undef DEBUG_TX_TRACE /* transmission calls */
429#undef DEBUG_TX_INFO /* header of the transmitted packet */
430#undef DEBUG_TX_FAIL /* Normal failure conditions */
431#define DEBUG_TX_ERROR /* Unexpected conditions */
432#undef DEBUG_RX_TRACE /* transmission calls */
433#undef DEBUG_RX_INFO /* header of the received packet */
434#undef DEBUG_RX_FAIL /* Normal failure conditions */
435#define DEBUG_RX_ERROR /* Unexpected conditions */
436
437#undef DEBUG_PACKET_DUMP /* Dump packet on the screen if defined to 32. */
438#undef DEBUG_IOCTL_TRACE /* misc. call by Linux */
439#undef DEBUG_IOCTL_INFO /* various debugging info */
440#define DEBUG_IOCTL_ERROR /* what's going wrong */
441#define DEBUG_BASIC_SHOW /* Show basic startup info. */
442#undef DEBUG_VERSION_SHOW /* Print version info. */
443#undef DEBUG_PSA_SHOW /* Dump PSA to screen. */
444#undef DEBUG_MMC_SHOW /* Dump mmc to screen. */
445#undef DEBUG_SHOW_UNUSED /* Show unused fields too. */
446#undef DEBUG_I82586_SHOW /* Show i82586 status. */
447#undef DEBUG_DEVICE_SHOW /* Show device parameters. */
448
449/************************ CONSTANTS & MACROS ************************/
450
451#ifdef DEBUG_VERSION_SHOW
452static const char *version = "wavelan.c : v24 (SMP + wireless extensions) 11/12/01\n";
453#endif
454
455/* Watchdog temporisation */
456#define WATCHDOG_JIFFIES (512*HZ/100)
457
458/* Macro to get the number of elements in an array */
459#define NELS(a) (sizeof(a) / sizeof(a[0]))
460
461/* ------------------------ PRIVATE IOCTL ------------------------ */
462
463#define SIOCSIPQTHR SIOCIWFIRSTPRIV /* Set quality threshold */
464#define SIOCGIPQTHR SIOCIWFIRSTPRIV + 1 /* Get quality threshold */
465
466#define SIOCSIPHISTO SIOCIWFIRSTPRIV + 2 /* Set histogram ranges */
467#define SIOCGIPHISTO SIOCIWFIRSTPRIV + 3 /* Get histogram values */
468
469/****************************** TYPES ******************************/
470
471/* Shortcuts */
472typedef struct net_device_stats en_stats;
473typedef struct iw_statistics iw_stats;
474typedef struct iw_quality iw_qual;
475typedef struct iw_freq iw_freq;
476typedef struct net_local net_local;
477typedef struct timer_list timer_list;
478
479/* Basic types */
480typedef u_char mac_addr[WAVELAN_ADDR_SIZE]; /* Hardware address */
481
482/*
483 * Static specific data for the interface.
484 *
485 * For each network interface, Linux keeps data in two structures: "device"
486 * keeps the generic data (same format for everybody) and "net_local" keeps
487 * additional specific data.
488 * Note that some of this specific data is in fact generic (en_stats, for
489 * example).
490 */
491struct net_local
492{
493 net_local * next; /* linked list of the devices */
494 struct net_device * dev; /* reverse link */
495 spinlock_t spinlock; /* Serialize access to the hardware (SMP) */
496 en_stats stats; /* Ethernet interface statistics */
497 int nresets; /* number of hardware resets */
498 u_char reconfig_82586; /* We need to reconfigure the controller. */
499 u_char promiscuous; /* promiscuous mode */
500 int mc_count; /* number of multicast addresses */
501 u_short hacr; /* current host interface state */
502
503 int tx_n_in_use;
504 u_short rx_head;
505 u_short rx_last;
506 u_short tx_first_free;
507 u_short tx_first_in_use;
508
509#ifdef WIRELESS_EXT
510 iw_stats wstats; /* Wireless-specific statistics */
511
512 struct iw_spy_data spy_data;
513 struct iw_public_data wireless_data;
514#endif
515
516#ifdef HISTOGRAM
517 int his_number; /* number of intervals */
518 u_char his_range[16]; /* boundaries of interval ]n-1; n] */
519 u_long his_sum[16]; /* sum in interval */
520#endif /* HISTOGRAM */
521};
522
523/**************************** PROTOTYPES ****************************/
524
525/* ----------------------- MISC. SUBROUTINES ------------------------ */
526static u_char
527 wv_irq_to_psa(int);
528static int
529 wv_psa_to_irq(u_char);
530/* ------------------- HOST ADAPTER SUBROUTINES ------------------- */
531static inline u_short /* data */
532 hasr_read(u_long); /* Read the host interface: base address */
533static inline void
534 hacr_write(u_long, /* Write to host interface: base address */
535 u_short), /* data */
536 hacr_write_slow(u_long,
537 u_short),
538 set_chan_attn(u_long, /* ioaddr */
539 u_short), /* hacr */
540 wv_hacr_reset(u_long), /* ioaddr */
541 wv_16_off(u_long, /* ioaddr */
542 u_short), /* hacr */
543 wv_16_on(u_long, /* ioaddr */
544 u_short), /* hacr */
545 wv_ints_off(struct net_device *),
546 wv_ints_on(struct net_device *);
547/* ----------------- MODEM MANAGEMENT SUBROUTINES ----------------- */
548static void
549 psa_read(u_long, /* Read the Parameter Storage Area. */
550 u_short, /* hacr */
551 int, /* offset in PSA */
552 u_char *, /* buffer to fill */
553 int), /* size to read */
554 psa_write(u_long, /* Write to the PSA. */
555 u_short, /* hacr */
556 int, /* offset in PSA */
557 u_char *, /* buffer in memory */
558 int); /* length of buffer */
559static inline void
560 mmc_out(u_long, /* Write 1 byte to the Modem Manag Control. */
561 u_short,
562 u_char),
563 mmc_write(u_long, /* Write n bytes to the MMC. */
564 u_char,
565 u_char *,
566 int);
567static inline u_char /* Read 1 byte from the MMC. */
568 mmc_in(u_long,
569 u_short);
570static inline void
571 mmc_read(u_long, /* Read n bytes from the MMC. */
572 u_char,
573 u_char *,
574 int),
575 fee_wait(u_long, /* Wait for frequency EEPROM: base address */
576 int, /* base delay to wait for */
577 int); /* time to wait */
578static void
579 fee_read(u_long, /* Read the frequency EEPROM: base address */
580 u_short, /* destination offset */
581 u_short *, /* data buffer */
582 int); /* number of registers */
583/* ---------------------- I82586 SUBROUTINES ----------------------- */
584static /*inline*/ void
585 obram_read(u_long, /* ioaddr */
586 u_short, /* o */
587 u_char *, /* b */
588 int); /* n */
589static inline void
590 obram_write(u_long, /* ioaddr */
591 u_short, /* o */
592 u_char *, /* b */
593 int); /* n */
594static void
595 wv_ack(struct net_device *);
596static inline int
597 wv_synchronous_cmd(struct net_device *,
598 const char *),
599 wv_config_complete(struct net_device *,
600 u_long,
601 net_local *);
602static int
603 wv_complete(struct net_device *,
604 u_long,
605 net_local *);
606static inline void
607 wv_82586_reconfig(struct net_device *);
608/* ------------------- DEBUG & INFO SUBROUTINES ------------------- */
609#ifdef DEBUG_I82586_SHOW
610static void
611 wv_scb_show(unsigned short);
612#endif
613static inline void
614 wv_init_info(struct net_device *); /* display startup info */
615/* ------------------- IOCTL, STATS & RECONFIG ------------------- */
616static en_stats *
617 wavelan_get_stats(struct net_device *); /* Give stats /proc/net/dev */
618static iw_stats *
619 wavelan_get_wireless_stats(struct net_device *);
620static void
621 wavelan_set_multicast_list(struct net_device *);
622/* ----------------------- PACKET RECEPTION ----------------------- */
623static inline void
624 wv_packet_read(struct net_device *, /* Read a packet from a frame. */
625 u_short,
626 int),
627 wv_receive(struct net_device *); /* Read all packets waiting. */
628/* --------------------- PACKET TRANSMISSION --------------------- */
629static inline int
630 wv_packet_write(struct net_device *, /* Write a packet to the Tx buffer. */
631 void *,
632 short);
633static int
634 wavelan_packet_xmit(struct sk_buff *, /* Send a packet. */
635 struct net_device *);
636/* -------------------- HARDWARE CONFIGURATION -------------------- */
637static inline int
638 wv_mmc_init(struct net_device *), /* Initialize the modem. */
639 wv_ru_start(struct net_device *), /* Start the i82586 receiver unit. */
640 wv_cu_start(struct net_device *), /* Start the i82586 command unit. */
641 wv_82586_start(struct net_device *); /* Start the i82586. */
642static void
643 wv_82586_config(struct net_device *); /* Configure the i82586. */
644static inline void
645 wv_82586_stop(struct net_device *);
646static int
647 wv_hw_reset(struct net_device *), /* Reset the WaveLAN hardware. */
648 wv_check_ioaddr(u_long, /* ioaddr */
649 u_char *); /* mac address (read) */
650/* ---------------------- INTERRUPT HANDLING ---------------------- */
651static irqreturn_t
652 wavelan_interrupt(int, /* interrupt handler */
653 void *,
654 struct pt_regs *);
655static void
656 wavelan_watchdog(struct net_device *); /* transmission watchdog */
657/* ------------------- CONFIGURATION CALLBACKS ------------------- */
658static int
659 wavelan_open(struct net_device *), /* Open the device. */
660 wavelan_close(struct net_device *), /* Close the device. */
661 wavelan_config(struct net_device *, unsigned short);/* Configure one device. */
662extern struct net_device *wavelan_probe(int unit); /* See Space.c. */
663
664/**************************** VARIABLES ****************************/
665
666/*
667 * This is the root of the linked list of WaveLAN drivers
668 * It is use to verify that we don't reuse the same base address
669 * for two different drivers and to clean up when removing the module.
670 */
671static net_local * wavelan_list = (net_local *) NULL;
672
673/*
674 * This table is used to translate the PSA value to IRQ number
675 * and vice versa.
676 */
677static u_char irqvals[] =
678{
679 0, 0, 0, 0x01,
680 0x02, 0x04, 0, 0x08,
681 0, 0, 0x10, 0x20,
682 0x40, 0, 0, 0x80,
683};
684
685/*
686 * Table of the available I/O addresses (base addresses) for WaveLAN
687 */
688static unsigned short iobase[] =
689{
690#if 0
691 /* Leave out 0x3C0 for now -- seems to clash with some video
692 * controllers.
693 * Leave out the others too -- we will always use 0x390 and leave
694 * 0x300 for the Ethernet device.
695 * Jean II: 0x3E0 is fine as well.
696 */
697 0x300, 0x390, 0x3E0, 0x3C0
698#endif /* 0 */
699 0x390, 0x3E0
700};
701
702#ifdef MODULE
703/* Parameters set by insmod */
704static int io[4];
705static int irq[4];
706static char *name[4];
707module_param_array(io, int, NULL, 0);
708module_param_array(irq, int, NULL, 0);
709module_param_array(name, charp, NULL, 0);
710
711MODULE_PARM_DESC(io, "WaveLAN I/O base address(es),required");
712MODULE_PARM_DESC(irq, "WaveLAN IRQ number(s)");
713MODULE_PARM_DESC(name, "WaveLAN interface neme(s)");
714#endif /* MODULE */
715
716#endif /* WAVELAN_P_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-03 20:03:50 -0500