Version:  2.0.40 2.2.26 2.4.37 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4

Linux/drivers/net/wireless/airo.c

  1 /*======================================================================
  2 
  3     Aironet driver for 4500 and 4800 series cards
  4 
  5     This code is released under both the GPL version 2 and BSD licenses.
  6     Either license may be used.  The respective licenses are found at
  7     the end of this file.
  8 
  9     This code was developed by Benjamin Reed <breed@users.sourceforge.net>
 10     including portions of which come from the Aironet PC4500
 11     Developer's Reference Manual and used with permission.  Copyright
 12     (C) 1999 Benjamin Reed.  All Rights Reserved.  Permission to use
 13     code in the Developer's manual was granted for this driver by
 14     Aironet.  Major code contributions were received from Javier Achirica
 15     <achirica@users.sourceforge.net> and Jean Tourrilhes <jt@hpl.hp.com>.
 16     Code was also integrated from the Cisco Aironet driver for Linux.
 17     Support for MPI350 cards was added by Fabrice Bellet
 18     <fabrice@bellet.info>.
 19 
 20 ======================================================================*/
 21 
 22 #include <linux/err.h>
 23 #include <linux/init.h>
 24 
 25 #include <linux/kernel.h>
 26 #include <linux/module.h>
 27 #include <linux/proc_fs.h>
 28 
 29 #include <linux/sched.h>
 30 #include <linux/ptrace.h>
 31 #include <linux/slab.h>
 32 #include <linux/string.h>
 33 #include <linux/timer.h>
 34 #include <linux/interrupt.h>
 35 #include <linux/in.h>
 36 #include <linux/bitops.h>
 37 #include <linux/scatterlist.h>
 38 #include <linux/crypto.h>
 39 #include <linux/io.h>
 40 #include <asm/unaligned.h>
 41 
 42 #include <linux/netdevice.h>
 43 #include <linux/etherdevice.h>
 44 #include <linux/skbuff.h>
 45 #include <linux/if_arp.h>
 46 #include <linux/ioport.h>
 47 #include <linux/pci.h>
 48 #include <linux/uaccess.h>
 49 #include <linux/kthread.h>
 50 #include <linux/freezer.h>
 51 
 52 #include <net/cfg80211.h>
 53 #include <net/iw_handler.h>
 54 
 55 #include "airo.h"
 56 
 57 #define DRV_NAME "airo"
 58 
 59 #ifdef CONFIG_PCI
 60 static const struct pci_device_id card_ids[] = {
 61         { 0x14b9, 1, PCI_ANY_ID, PCI_ANY_ID, },
 62         { 0x14b9, 0x4500, PCI_ANY_ID, PCI_ANY_ID },
 63         { 0x14b9, 0x4800, PCI_ANY_ID, PCI_ANY_ID, },
 64         { 0x14b9, 0x0340, PCI_ANY_ID, PCI_ANY_ID, },
 65         { 0x14b9, 0x0350, PCI_ANY_ID, PCI_ANY_ID, },
 66         { 0x14b9, 0x5000, PCI_ANY_ID, PCI_ANY_ID, },
 67         { 0x14b9, 0xa504, PCI_ANY_ID, PCI_ANY_ID, },
 68         { 0, }
 69 };
 70 MODULE_DEVICE_TABLE(pci, card_ids);
 71 
 72 static int airo_pci_probe(struct pci_dev *, const struct pci_device_id *);
 73 static void airo_pci_remove(struct pci_dev *);
 74 static int airo_pci_suspend(struct pci_dev *pdev, pm_message_t state);
 75 static int airo_pci_resume(struct pci_dev *pdev);
 76 
 77 static struct pci_driver airo_driver = {
 78         .name     = DRV_NAME,
 79         .id_table = card_ids,
 80         .probe    = airo_pci_probe,
 81         .remove   = airo_pci_remove,
 82         .suspend  = airo_pci_suspend,
 83         .resume   = airo_pci_resume,
 84 };
 85 #endif /* CONFIG_PCI */
 86 
 87 /* Include Wireless Extension definition and check version - Jean II */
 88 #include <linux/wireless.h>
 89 #define WIRELESS_SPY            /* enable iwspy support */
 90 
 91 #define CISCO_EXT               /* enable Cisco extensions */
 92 #ifdef CISCO_EXT
 93 #include <linux/delay.h>
 94 #endif
 95 
 96 /* Hack to do some power saving */
 97 #define POWER_ON_DOWN
 98 
 99 /* As you can see this list is HUGH!
100    I really don't know what a lot of these counts are about, but they
101    are all here for completeness.  If the IGNLABEL macro is put in
102    infront of the label, that statistic will not be included in the list
103    of statistics in the /proc filesystem */
104 
105 #define IGNLABEL(comment) NULL
106 static const char *statsLabels[] = {
107         "RxOverrun",
108         IGNLABEL("RxPlcpCrcErr"),
109         IGNLABEL("RxPlcpFormatErr"),
110         IGNLABEL("RxPlcpLengthErr"),
111         "RxMacCrcErr",
112         "RxMacCrcOk",
113         "RxWepErr",
114         "RxWepOk",
115         "RetryLong",
116         "RetryShort",
117         "MaxRetries",
118         "NoAck",
119         "NoCts",
120         "RxAck",
121         "RxCts",
122         "TxAck",
123         "TxRts",
124         "TxCts",
125         "TxMc",
126         "TxBc",
127         "TxUcFrags",
128         "TxUcPackets",
129         "TxBeacon",
130         "RxBeacon",
131         "TxSinColl",
132         "TxMulColl",
133         "DefersNo",
134         "DefersProt",
135         "DefersEngy",
136         "DupFram",
137         "RxFragDisc",
138         "TxAged",
139         "RxAged",
140         "LostSync-MaxRetry",
141         "LostSync-MissedBeacons",
142         "LostSync-ArlExceeded",
143         "LostSync-Deauth",
144         "LostSync-Disassoced",
145         "LostSync-TsfTiming",
146         "HostTxMc",
147         "HostTxBc",
148         "HostTxUc",
149         "HostTxFail",
150         "HostRxMc",
151         "HostRxBc",
152         "HostRxUc",
153         "HostRxDiscard",
154         IGNLABEL("HmacTxMc"),
155         IGNLABEL("HmacTxBc"),
156         IGNLABEL("HmacTxUc"),
157         IGNLABEL("HmacTxFail"),
158         IGNLABEL("HmacRxMc"),
159         IGNLABEL("HmacRxBc"),
160         IGNLABEL("HmacRxUc"),
161         IGNLABEL("HmacRxDiscard"),
162         IGNLABEL("HmacRxAccepted"),
163         "SsidMismatch",
164         "ApMismatch",
165         "RatesMismatch",
166         "AuthReject",
167         "AuthTimeout",
168         "AssocReject",
169         "AssocTimeout",
170         IGNLABEL("ReasonOutsideTable"),
171         IGNLABEL("ReasonStatus1"),
172         IGNLABEL("ReasonStatus2"),
173         IGNLABEL("ReasonStatus3"),
174         IGNLABEL("ReasonStatus4"),
175         IGNLABEL("ReasonStatus5"),
176         IGNLABEL("ReasonStatus6"),
177         IGNLABEL("ReasonStatus7"),
178         IGNLABEL("ReasonStatus8"),
179         IGNLABEL("ReasonStatus9"),
180         IGNLABEL("ReasonStatus10"),
181         IGNLABEL("ReasonStatus11"),
182         IGNLABEL("ReasonStatus12"),
183         IGNLABEL("ReasonStatus13"),
184         IGNLABEL("ReasonStatus14"),
185         IGNLABEL("ReasonStatus15"),
186         IGNLABEL("ReasonStatus16"),
187         IGNLABEL("ReasonStatus17"),
188         IGNLABEL("ReasonStatus18"),
189         IGNLABEL("ReasonStatus19"),
190         "RxMan",
191         "TxMan",
192         "RxRefresh",
193         "TxRefresh",
194         "RxPoll",
195         "TxPoll",
196         "HostRetries",
197         "LostSync-HostReq",
198         "HostTxBytes",
199         "HostRxBytes",
200         "ElapsedUsec",
201         "ElapsedSec",
202         "LostSyncBetterAP",
203         "PrivacyMismatch",
204         "Jammed",
205         "DiscRxNotWepped",
206         "PhyEleMismatch",
207         (char*)-1 };
208 #ifndef RUN_AT
209 #define RUN_AT(x) (jiffies+(x))
210 #endif
211 
212 
213 /* These variables are for insmod, since it seems that the rates
214    can only be set in setup_card.  Rates should be a comma separated
215    (no spaces) list of rates (up to 8). */
216 
217 static int rates[8];
218 static char *ssids[3];
219 
220 static int io[4];
221 static int irq[4];
222 
223 static
224 int maxencrypt /* = 0 */; /* The highest rate that the card can encrypt at.
225                        0 means no limit.  For old cards this was 4 */
226 
227 static int auto_wep /* = 0 */; /* If set, it tries to figure out the wep mode */
228 static int aux_bap /* = 0 */; /* Checks to see if the aux ports are needed to read
229                     the bap, needed on some older cards and buses. */
230 static int adhoc;
231 
232 static int probe = 1;
233 
234 static kuid_t proc_kuid;
235 static int proc_uid /* = 0 */;
236 
237 static kgid_t proc_kgid;
238 static int proc_gid /* = 0 */;
239 
240 static int airo_perm = 0555;
241 
242 static int proc_perm = 0644;
243 
244 MODULE_AUTHOR("Benjamin Reed");
245 MODULE_DESCRIPTION("Support for Cisco/Aironet 802.11 wireless ethernet cards.  "
246                    "Direct support for ISA/PCI/MPI cards and support for PCMCIA when used with airo_cs.");
247 MODULE_LICENSE("Dual BSD/GPL");
248 MODULE_SUPPORTED_DEVICE("Aironet 4500, 4800 and Cisco 340/350");
249 module_param_array(io, int, NULL, 0);
250 module_param_array(irq, int, NULL, 0);
251 module_param_array(rates, int, NULL, 0);
252 module_param_array(ssids, charp, NULL, 0);
253 module_param(auto_wep, int, 0);
254 MODULE_PARM_DESC(auto_wep,
255                  "If non-zero, the driver will keep looping through the authentication options until an association is made.  "
256                  "The value of auto_wep is number of the wep keys to check.  "
257                  "A value of 2 will try using the key at index 0 and index 1.");
258 module_param(aux_bap, int, 0);
259 MODULE_PARM_DESC(aux_bap,
260                  "If non-zero, the driver will switch into a mode that seems to work better for older cards with some older buses.  "
261                  "Before switching it checks that the switch is needed.");
262 module_param(maxencrypt, int, 0);
263 MODULE_PARM_DESC(maxencrypt,
264                  "The maximum speed that the card can do encryption.  "
265                  "Units are in 512kbs.  "
266                  "Zero (default) means there is no limit.  "
267                  "Older cards used to be limited to 2mbs (4).");
268 module_param(adhoc, int, 0);
269 MODULE_PARM_DESC(adhoc, "If non-zero, the card will start in adhoc mode.");
270 module_param(probe, int, 0);
271 MODULE_PARM_DESC(probe, "If zero, the driver won't start the card.");
272 
273 module_param(proc_uid, int, 0);
274 MODULE_PARM_DESC(proc_uid, "The uid that the /proc files will belong to.");
275 module_param(proc_gid, int, 0);
276 MODULE_PARM_DESC(proc_gid, "The gid that the /proc files will belong to.");
277 module_param(airo_perm, int, 0);
278 MODULE_PARM_DESC(airo_perm, "The permission bits of /proc/[driver/]aironet.");
279 module_param(proc_perm, int, 0);
280 MODULE_PARM_DESC(proc_perm, "The permission bits of the files in /proc");
281 
282 /* This is a kind of sloppy hack to get this information to OUT4500 and
283    IN4500.  I would be extremely interested in the situation where this
284    doesn't work though!!! */
285 static int do8bitIO /* = 0 */;
286 
287 /* Return codes */
288 #define SUCCESS 0
289 #define ERROR -1
290 #define NO_PACKET -2
291 
292 /* Commands */
293 #define NOP2            0x0000
294 #define MAC_ENABLE      0x0001
295 #define MAC_DISABLE     0x0002
296 #define CMD_LOSE_SYNC   0x0003 /* Not sure what this does... */
297 #define CMD_SOFTRESET   0x0004
298 #define HOSTSLEEP       0x0005
299 #define CMD_MAGIC_PKT   0x0006
300 #define CMD_SETWAKEMASK 0x0007
301 #define CMD_READCFG     0x0008
302 #define CMD_SETMODE     0x0009
303 #define CMD_ALLOCATETX  0x000a
304 #define CMD_TRANSMIT    0x000b
305 #define CMD_DEALLOCATETX 0x000c
306 #define NOP             0x0010
307 #define CMD_WORKAROUND  0x0011
308 #define CMD_ALLOCATEAUX 0x0020
309 #define CMD_ACCESS      0x0021
310 #define CMD_PCIBAP      0x0022
311 #define CMD_PCIAUX      0x0023
312 #define CMD_ALLOCBUF    0x0028
313 #define CMD_GETTLV      0x0029
314 #define CMD_PUTTLV      0x002a
315 #define CMD_DELTLV      0x002b
316 #define CMD_FINDNEXTTLV 0x002c
317 #define CMD_PSPNODES    0x0030
318 #define CMD_SETCW       0x0031    
319 #define CMD_SETPCF      0x0032    
320 #define CMD_SETPHYREG   0x003e
321 #define CMD_TXTEST      0x003f
322 #define MAC_ENABLETX    0x0101
323 #define CMD_LISTBSS     0x0103
324 #define CMD_SAVECFG     0x0108
325 #define CMD_ENABLEAUX   0x0111
326 #define CMD_WRITERID    0x0121
327 #define CMD_USEPSPNODES 0x0130
328 #define MAC_ENABLERX    0x0201
329 
330 /* Command errors */
331 #define ERROR_QUALIF 0x00
332 #define ERROR_ILLCMD 0x01
333 #define ERROR_ILLFMT 0x02
334 #define ERROR_INVFID 0x03
335 #define ERROR_INVRID 0x04
336 #define ERROR_LARGE 0x05
337 #define ERROR_NDISABL 0x06
338 #define ERROR_ALLOCBSY 0x07
339 #define ERROR_NORD 0x0B
340 #define ERROR_NOWR 0x0C
341 #define ERROR_INVFIDTX 0x0D
342 #define ERROR_TESTACT 0x0E
343 #define ERROR_TAGNFND 0x12
344 #define ERROR_DECODE 0x20
345 #define ERROR_DESCUNAV 0x21
346 #define ERROR_BADLEN 0x22
347 #define ERROR_MODE 0x80
348 #define ERROR_HOP 0x81
349 #define ERROR_BINTER 0x82
350 #define ERROR_RXMODE 0x83
351 #define ERROR_MACADDR 0x84
352 #define ERROR_RATES 0x85
353 #define ERROR_ORDER 0x86
354 #define ERROR_SCAN 0x87
355 #define ERROR_AUTH 0x88
356 #define ERROR_PSMODE 0x89
357 #define ERROR_RTYPE 0x8A
358 #define ERROR_DIVER 0x8B
359 #define ERROR_SSID 0x8C
360 #define ERROR_APLIST 0x8D
361 #define ERROR_AUTOWAKE 0x8E
362 #define ERROR_LEAP 0x8F
363 
364 /* Registers */
365 #define COMMAND 0x00
366 #define PARAM0 0x02
367 #define PARAM1 0x04
368 #define PARAM2 0x06
369 #define STATUS 0x08
370 #define RESP0 0x0a
371 #define RESP1 0x0c
372 #define RESP2 0x0e
373 #define LINKSTAT 0x10
374 #define SELECT0 0x18
375 #define OFFSET0 0x1c
376 #define RXFID 0x20
377 #define TXALLOCFID 0x22
378 #define TXCOMPLFID 0x24
379 #define DATA0 0x36
380 #define EVSTAT 0x30
381 #define EVINTEN 0x32
382 #define EVACK 0x34
383 #define SWS0 0x28
384 #define SWS1 0x2a
385 #define SWS2 0x2c
386 #define SWS3 0x2e
387 #define AUXPAGE 0x3A
388 #define AUXOFF 0x3C
389 #define AUXDATA 0x3E
390 
391 #define FID_TX 1
392 #define FID_RX 2
393 /* Offset into aux memory for descriptors */
394 #define AUX_OFFSET 0x800
395 /* Size of allocated packets */
396 #define PKTSIZE 1840
397 #define RIDSIZE 2048
398 /* Size of the transmit queue */
399 #define MAXTXQ 64
400 
401 /* BAP selectors */
402 #define BAP0 0 /* Used for receiving packets */
403 #define BAP1 2 /* Used for xmiting packets and working with RIDS */
404 
405 /* Flags */
406 #define COMMAND_BUSY 0x8000
407 
408 #define BAP_BUSY 0x8000
409 #define BAP_ERR 0x4000
410 #define BAP_DONE 0x2000
411 
412 #define PROMISC 0xffff
413 #define NOPROMISC 0x0000
414 
415 #define EV_CMD 0x10
416 #define EV_CLEARCOMMANDBUSY 0x4000
417 #define EV_RX 0x01
418 #define EV_TX 0x02
419 #define EV_TXEXC 0x04
420 #define EV_ALLOC 0x08
421 #define EV_LINK 0x80
422 #define EV_AWAKE 0x100
423 #define EV_TXCPY 0x400
424 #define EV_UNKNOWN 0x800
425 #define EV_MIC 0x1000 /* Message Integrity Check Interrupt */
426 #define EV_AWAKEN 0x2000
427 #define STATUS_INTS (EV_AWAKE|EV_LINK|EV_TXEXC|EV_TX|EV_TXCPY|EV_RX|EV_MIC)
428 
429 #ifdef CHECK_UNKNOWN_INTS
430 #define IGNORE_INTS ( EV_CMD | EV_UNKNOWN)
431 #else
432 #define IGNORE_INTS (~STATUS_INTS)
433 #endif
434 
435 /* RID TYPES */
436 #define RID_RW 0x20
437 
438 /* The RIDs */
439 #define RID_CAPABILITIES 0xFF00
440 #define RID_APINFO     0xFF01
441 #define RID_RADIOINFO  0xFF02
442 #define RID_UNKNOWN3   0xFF03
443 #define RID_RSSI       0xFF04
444 #define RID_CONFIG     0xFF10
445 #define RID_SSID       0xFF11
446 #define RID_APLIST     0xFF12
447 #define RID_DRVNAME    0xFF13
448 #define RID_ETHERENCAP 0xFF14
449 #define RID_WEP_TEMP   0xFF15
450 #define RID_WEP_PERM   0xFF16
451 #define RID_MODULATION 0xFF17
452 #define RID_OPTIONS    0xFF18
453 #define RID_ACTUALCONFIG 0xFF20 /*readonly*/
454 #define RID_FACTORYCONFIG 0xFF21
455 #define RID_UNKNOWN22  0xFF22
456 #define RID_LEAPUSERNAME 0xFF23
457 #define RID_LEAPPASSWORD 0xFF24
458 #define RID_STATUS     0xFF50
459 #define RID_BEACON_HST 0xFF51
460 #define RID_BUSY_HST   0xFF52
461 #define RID_RETRIES_HST 0xFF53
462 #define RID_UNKNOWN54  0xFF54
463 #define RID_UNKNOWN55  0xFF55
464 #define RID_UNKNOWN56  0xFF56
465 #define RID_MIC        0xFF57
466 #define RID_STATS16    0xFF60
467 #define RID_STATS16DELTA 0xFF61
468 #define RID_STATS16DELTACLEAR 0xFF62
469 #define RID_STATS      0xFF68
470 #define RID_STATSDELTA 0xFF69
471 #define RID_STATSDELTACLEAR 0xFF6A
472 #define RID_ECHOTEST_RID 0xFF70
473 #define RID_ECHOTEST_RESULTS 0xFF71
474 #define RID_BSSLISTFIRST 0xFF72
475 #define RID_BSSLISTNEXT  0xFF73
476 #define RID_WPA_BSSLISTFIRST 0xFF74
477 #define RID_WPA_BSSLISTNEXT  0xFF75
478 
479 typedef struct {
480         u16 cmd;
481         u16 parm0;
482         u16 parm1;
483         u16 parm2;
484 } Cmd;
485 
486 typedef struct {
487         u16 status;
488         u16 rsp0;
489         u16 rsp1;
490         u16 rsp2;
491 } Resp;
492 
493 /*
494  * Rids and endian-ness:  The Rids will always be in cpu endian, since
495  * this all the patches from the big-endian guys end up doing that.
496  * so all rid access should use the read/writeXXXRid routines.
497  */
498 
499 /* This structure came from an email sent to me from an engineer at
500    aironet for inclusion into this driver */
501 typedef struct WepKeyRid WepKeyRid;
502 struct WepKeyRid {
503         __le16 len;
504         __le16 kindex;
505         u8 mac[ETH_ALEN];
506         __le16 klen;
507         u8 key[16];
508 } __packed;
509 
510 /* These structures are from the Aironet's PC4500 Developers Manual */
511 typedef struct Ssid Ssid;
512 struct Ssid {
513         __le16 len;
514         u8 ssid[32];
515 } __packed;
516 
517 typedef struct SsidRid SsidRid;
518 struct SsidRid {
519         __le16 len;
520         Ssid ssids[3];
521 } __packed;
522 
523 typedef struct ModulationRid ModulationRid;
524 struct ModulationRid {
525         __le16 len;
526         __le16 modulation;
527 #define MOD_DEFAULT cpu_to_le16(0)
528 #define MOD_CCK cpu_to_le16(1)
529 #define MOD_MOK cpu_to_le16(2)
530 } __packed;
531 
532 typedef struct ConfigRid ConfigRid;
533 struct ConfigRid {
534         __le16 len; /* sizeof(ConfigRid) */
535         __le16 opmode; /* operating mode */
536 #define MODE_STA_IBSS cpu_to_le16(0)
537 #define MODE_STA_ESS cpu_to_le16(1)
538 #define MODE_AP cpu_to_le16(2)
539 #define MODE_AP_RPTR cpu_to_le16(3)
540 #define MODE_CFG_MASK cpu_to_le16(0xff)
541 #define MODE_ETHERNET_HOST cpu_to_le16(0<<8) /* rx payloads converted */
542 #define MODE_LLC_HOST cpu_to_le16(1<<8) /* rx payloads left as is */
543 #define MODE_AIRONET_EXTEND cpu_to_le16(1<<9) /* enable Aironet extenstions */
544 #define MODE_AP_INTERFACE cpu_to_le16(1<<10) /* enable ap interface extensions */
545 #define MODE_ANTENNA_ALIGN cpu_to_le16(1<<11) /* enable antenna alignment */
546 #define MODE_ETHER_LLC cpu_to_le16(1<<12) /* enable ethernet LLC */
547 #define MODE_LEAF_NODE cpu_to_le16(1<<13) /* enable leaf node bridge */
548 #define MODE_CF_POLLABLE cpu_to_le16(1<<14) /* enable CF pollable */
549 #define MODE_MIC cpu_to_le16(1<<15) /* enable MIC */
550         __le16 rmode; /* receive mode */
551 #define RXMODE_BC_MC_ADDR cpu_to_le16(0)
552 #define RXMODE_BC_ADDR cpu_to_le16(1) /* ignore multicasts */
553 #define RXMODE_ADDR cpu_to_le16(2) /* ignore multicast and broadcast */
554 #define RXMODE_RFMON cpu_to_le16(3) /* wireless monitor mode */
555 #define RXMODE_RFMON_ANYBSS cpu_to_le16(4)
556 #define RXMODE_LANMON cpu_to_le16(5) /* lan style monitor -- data packets only */
557 #define RXMODE_MASK cpu_to_le16(255)
558 #define RXMODE_DISABLE_802_3_HEADER cpu_to_le16(1<<8) /* disables 802.3 header on rx */
559 #define RXMODE_FULL_MASK (RXMODE_MASK | RXMODE_DISABLE_802_3_HEADER)
560 #define RXMODE_NORMALIZED_RSSI cpu_to_le16(1<<9) /* return normalized RSSI */
561         __le16 fragThresh;
562         __le16 rtsThres;
563         u8 macAddr[ETH_ALEN];
564         u8 rates[8];
565         __le16 shortRetryLimit;
566         __le16 longRetryLimit;
567         __le16 txLifetime; /* in kusec */
568         __le16 rxLifetime; /* in kusec */
569         __le16 stationary;
570         __le16 ordering;
571         __le16 u16deviceType; /* for overriding device type */
572         __le16 cfpRate;
573         __le16 cfpDuration;
574         __le16 _reserved1[3];
575         /*---------- Scanning/Associating ----------*/
576         __le16 scanMode;
577 #define SCANMODE_ACTIVE cpu_to_le16(0)
578 #define SCANMODE_PASSIVE cpu_to_le16(1)
579 #define SCANMODE_AIROSCAN cpu_to_le16(2)
580         __le16 probeDelay; /* in kusec */
581         __le16 probeEnergyTimeout; /* in kusec */
582         __le16 probeResponseTimeout;
583         __le16 beaconListenTimeout;
584         __le16 joinNetTimeout;
585         __le16 authTimeout;
586         __le16 authType;
587 #define AUTH_OPEN cpu_to_le16(0x1)
588 #define AUTH_ENCRYPT cpu_to_le16(0x101)
589 #define AUTH_SHAREDKEY cpu_to_le16(0x102)
590 #define AUTH_ALLOW_UNENCRYPTED cpu_to_le16(0x200)
591         __le16 associationTimeout;
592         __le16 specifiedApTimeout;
593         __le16 offlineScanInterval;
594         __le16 offlineScanDuration;
595         __le16 linkLossDelay;
596         __le16 maxBeaconLostTime;
597         __le16 refreshInterval;
598 #define DISABLE_REFRESH cpu_to_le16(0xFFFF)
599         __le16 _reserved1a[1];
600         /*---------- Power save operation ----------*/
601         __le16 powerSaveMode;
602 #define POWERSAVE_CAM cpu_to_le16(0)
603 #define POWERSAVE_PSP cpu_to_le16(1)
604 #define POWERSAVE_PSPCAM cpu_to_le16(2)
605         __le16 sleepForDtims;
606         __le16 listenInterval;
607         __le16 fastListenInterval;
608         __le16 listenDecay;
609         __le16 fastListenDelay;
610         __le16 _reserved2[2];
611         /*---------- Ap/Ibss config items ----------*/
612         __le16 beaconPeriod;
613         __le16 atimDuration;
614         __le16 hopPeriod;
615         __le16 channelSet;
616         __le16 channel;
617         __le16 dtimPeriod;
618         __le16 bridgeDistance;
619         __le16 radioID;
620         /*---------- Radio configuration ----------*/
621         __le16 radioType;
622 #define RADIOTYPE_DEFAULT cpu_to_le16(0)
623 #define RADIOTYPE_802_11 cpu_to_le16(1)
624 #define RADIOTYPE_LEGACY cpu_to_le16(2)
625         u8 rxDiversity;
626         u8 txDiversity;
627         __le16 txPower;
628 #define TXPOWER_DEFAULT 0
629         __le16 rssiThreshold;
630 #define RSSI_DEFAULT 0
631         __le16 modulation;
632 #define PREAMBLE_AUTO cpu_to_le16(0)
633 #define PREAMBLE_LONG cpu_to_le16(1)
634 #define PREAMBLE_SHORT cpu_to_le16(2)
635         __le16 preamble;
636         __le16 homeProduct;
637         __le16 radioSpecific;
638         /*---------- Aironet Extensions ----------*/
639         u8 nodeName[16];
640         __le16 arlThreshold;
641         __le16 arlDecay;
642         __le16 arlDelay;
643         __le16 _reserved4[1];
644         /*---------- Aironet Extensions ----------*/
645         u8 magicAction;
646 #define MAGIC_ACTION_STSCHG 1
647 #define MAGIC_ACTION_RESUME 2
648 #define MAGIC_IGNORE_MCAST (1<<8)
649 #define MAGIC_IGNORE_BCAST (1<<9)
650 #define MAGIC_SWITCH_TO_PSP (0<<10)
651 #define MAGIC_STAY_IN_CAM (1<<10)
652         u8 magicControl;
653         __le16 autoWake;
654 } __packed;
655 
656 typedef struct StatusRid StatusRid;
657 struct StatusRid {
658         __le16 len;
659         u8 mac[ETH_ALEN];
660         __le16 mode;
661         __le16 errorCode;
662         __le16 sigQuality;
663         __le16 SSIDlen;
664         char SSID[32];
665         char apName[16];
666         u8 bssid[4][ETH_ALEN];
667         __le16 beaconPeriod;
668         __le16 dimPeriod;
669         __le16 atimDuration;
670         __le16 hopPeriod;
671         __le16 channelSet;
672         __le16 channel;
673         __le16 hopsToBackbone;
674         __le16 apTotalLoad;
675         __le16 generatedLoad;
676         __le16 accumulatedArl;
677         __le16 signalQuality;
678         __le16 currentXmitRate;
679         __le16 apDevExtensions;
680         __le16 normalizedSignalStrength;
681         __le16 shortPreamble;
682         u8 apIP[4];
683         u8 noisePercent; /* Noise percent in last second */
684         u8 noisedBm; /* Noise dBm in last second */
685         u8 noiseAvePercent; /* Noise percent in last minute */
686         u8 noiseAvedBm; /* Noise dBm in last minute */
687         u8 noiseMaxPercent; /* Highest noise percent in last minute */
688         u8 noiseMaxdBm; /* Highest noise dbm in last minute */
689         __le16 load;
690         u8 carrier[4];
691         __le16 assocStatus;
692 #define STAT_NOPACKETS 0
693 #define STAT_NOCARRIERSET 10
694 #define STAT_GOTCARRIERSET 11
695 #define STAT_WRONGSSID 20
696 #define STAT_BADCHANNEL 25
697 #define STAT_BADBITRATES 30
698 #define STAT_BADPRIVACY 35
699 #define STAT_APFOUND 40
700 #define STAT_APREJECTED 50
701 #define STAT_AUTHENTICATING 60
702 #define STAT_DEAUTHENTICATED 61
703 #define STAT_AUTHTIMEOUT 62
704 #define STAT_ASSOCIATING 70
705 #define STAT_DEASSOCIATED 71
706 #define STAT_ASSOCTIMEOUT 72
707 #define STAT_NOTAIROAP 73
708 #define STAT_ASSOCIATED 80
709 #define STAT_LEAPING 90
710 #define STAT_LEAPFAILED 91
711 #define STAT_LEAPTIMEDOUT 92
712 #define STAT_LEAPCOMPLETE 93
713 } __packed;
714 
715 typedef struct StatsRid StatsRid;
716 struct StatsRid {
717         __le16 len;
718         __le16 spacer;
719         __le32 vals[100];
720 } __packed;
721 
722 typedef struct APListRid APListRid;
723 struct APListRid {
724         __le16 len;
725         u8 ap[4][ETH_ALEN];
726 } __packed;
727 
728 typedef struct CapabilityRid CapabilityRid;
729 struct CapabilityRid {
730         __le16 len;
731         char oui[3];
732         char zero;
733         __le16 prodNum;
734         char manName[32];
735         char prodName[16];
736         char prodVer[8];
737         char factoryAddr[ETH_ALEN];
738         char aironetAddr[ETH_ALEN];
739         __le16 radioType;
740         __le16 country;
741         char callid[ETH_ALEN];
742         char supportedRates[8];
743         char rxDiversity;
744         char txDiversity;
745         __le16 txPowerLevels[8];
746         __le16 hardVer;
747         __le16 hardCap;
748         __le16 tempRange;
749         __le16 softVer;
750         __le16 softSubVer;
751         __le16 interfaceVer;
752         __le16 softCap;
753         __le16 bootBlockVer;
754         __le16 requiredHard;
755         __le16 extSoftCap;
756 } __packed;
757 
758 /* Only present on firmware >= 5.30.17 */
759 typedef struct BSSListRidExtra BSSListRidExtra;
760 struct BSSListRidExtra {
761   __le16 unknown[4];
762   u8 fixed[12]; /* WLAN management frame */
763   u8 iep[624];
764 } __packed;
765 
766 typedef struct BSSListRid BSSListRid;
767 struct BSSListRid {
768   __le16 len;
769   __le16 index; /* First is 0 and 0xffff means end of list */
770 #define RADIO_FH 1 /* Frequency hopping radio type */
771 #define RADIO_DS 2 /* Direct sequence radio type */
772 #define RADIO_TMA 4 /* Proprietary radio used in old cards (2500) */
773   __le16 radioType;
774   u8 bssid[ETH_ALEN]; /* Mac address of the BSS */
775   u8 zero;
776   u8 ssidLen;
777   u8 ssid[32];
778   __le16 dBm;
779 #define CAP_ESS cpu_to_le16(1<<0)
780 #define CAP_IBSS cpu_to_le16(1<<1)
781 #define CAP_PRIVACY cpu_to_le16(1<<4)
782 #define CAP_SHORTHDR cpu_to_le16(1<<5)
783   __le16 cap;
784   __le16 beaconInterval;
785   u8 rates[8]; /* Same as rates for config rid */
786   struct { /* For frequency hopping only */
787     __le16 dwell;
788     u8 hopSet;
789     u8 hopPattern;
790     u8 hopIndex;
791     u8 fill;
792   } fh;
793   __le16 dsChannel;
794   __le16 atimWindow;
795 
796   /* Only present on firmware >= 5.30.17 */
797   BSSListRidExtra extra;
798 } __packed;
799 
800 typedef struct {
801   BSSListRid bss;
802   struct list_head list;
803 } BSSListElement;
804 
805 typedef struct tdsRssiEntry tdsRssiEntry;
806 struct tdsRssiEntry {
807   u8 rssipct;
808   u8 rssidBm;
809 } __packed;
810 
811 typedef struct tdsRssiRid tdsRssiRid;
812 struct tdsRssiRid {
813   u16 len;
814   tdsRssiEntry x[256];
815 } __packed;
816 
817 typedef struct MICRid MICRid;
818 struct MICRid {
819         __le16 len;
820         __le16 state;
821         __le16 multicastValid;
822         u8  multicast[16];
823         __le16 unicastValid;
824         u8  unicast[16];
825 } __packed;
826 
827 typedef struct MICBuffer MICBuffer;
828 struct MICBuffer {
829         __be16 typelen;
830 
831         union {
832             u8 snap[8];
833             struct {
834                 u8 dsap;
835                 u8 ssap;
836                 u8 control;
837                 u8 orgcode[3];
838                 u8 fieldtype[2];
839             } llc;
840         } u;
841         __be32 mic;
842         __be32 seq;
843 } __packed;
844 
845 typedef struct {
846         u8 da[ETH_ALEN];
847         u8 sa[ETH_ALEN];
848 } etherHead;
849 
850 #define TXCTL_TXOK (1<<1) /* report if tx is ok */
851 #define TXCTL_TXEX (1<<2) /* report if tx fails */
852 #define TXCTL_802_3 (0<<3) /* 802.3 packet */
853 #define TXCTL_802_11 (1<<3) /* 802.11 mac packet */
854 #define TXCTL_ETHERNET (0<<4) /* payload has ethertype */
855 #define TXCTL_LLC (1<<4) /* payload is llc */
856 #define TXCTL_RELEASE (0<<5) /* release after completion */
857 #define TXCTL_NORELEASE (1<<5) /* on completion returns to host */
858 
859 #define BUSY_FID 0x10000
860 
861 #ifdef CISCO_EXT
862 #define AIROMAGIC       0xa55a
863 /* Warning : SIOCDEVPRIVATE may disapear during 2.5.X - Jean II */
864 #ifdef SIOCIWFIRSTPRIV
865 #ifdef SIOCDEVPRIVATE
866 #define AIROOLDIOCTL    SIOCDEVPRIVATE
867 #define AIROOLDIDIFC    AIROOLDIOCTL + 1
868 #endif /* SIOCDEVPRIVATE */
869 #else /* SIOCIWFIRSTPRIV */
870 #define SIOCIWFIRSTPRIV SIOCDEVPRIVATE
871 #endif /* SIOCIWFIRSTPRIV */
872 /* This may be wrong. When using the new SIOCIWFIRSTPRIV range, we probably
873  * should use only "GET" ioctls (last bit set to 1). "SET" ioctls are root
874  * only and don't return the modified struct ifreq to the application which
875  * is usually a problem. - Jean II */
876 #define AIROIOCTL       SIOCIWFIRSTPRIV
877 #define AIROIDIFC       AIROIOCTL + 1
878 
879 /* Ioctl constants to be used in airo_ioctl.command */
880 
881 #define AIROGCAP                0       // Capability rid
882 #define AIROGCFG                1       // USED A LOT
883 #define AIROGSLIST              2       // System ID list
884 #define AIROGVLIST              3       // List of specified AP's
885 #define AIROGDRVNAM             4       //  NOTUSED
886 #define AIROGEHTENC             5       // NOTUSED
887 #define AIROGWEPKTMP            6
888 #define AIROGWEPKNV             7
889 #define AIROGSTAT               8
890 #define AIROGSTATSC32           9
891 #define AIROGSTATSD32           10
892 #define AIROGMICRID             11
893 #define AIROGMICSTATS           12
894 #define AIROGFLAGS              13
895 #define AIROGID                 14
896 #define AIRORRID                15
897 #define AIRORSWVERSION          17
898 
899 /* Leave gap of 40 commands after AIROGSTATSD32 for future */
900 
901 #define AIROPCAP                AIROGSTATSD32 + 40
902 #define AIROPVLIST              AIROPCAP      + 1
903 #define AIROPSLIST              AIROPVLIST    + 1
904 #define AIROPCFG                AIROPSLIST    + 1
905 #define AIROPSIDS               AIROPCFG      + 1
906 #define AIROPAPLIST             AIROPSIDS     + 1
907 #define AIROPMACON              AIROPAPLIST   + 1       /* Enable mac  */
908 #define AIROPMACOFF             AIROPMACON    + 1       /* Disable mac */
909 #define AIROPSTCLR              AIROPMACOFF   + 1
910 #define AIROPWEPKEY             AIROPSTCLR    + 1
911 #define AIROPWEPKEYNV           AIROPWEPKEY   + 1
912 #define AIROPLEAPPWD            AIROPWEPKEYNV + 1
913 #define AIROPLEAPUSR            AIROPLEAPPWD  + 1
914 
915 /* Flash codes */
916 
917 #define AIROFLSHRST            AIROPWEPKEYNV  + 40
918 #define AIROFLSHGCHR           AIROFLSHRST    + 1
919 #define AIROFLSHSTFL           AIROFLSHGCHR   + 1
920 #define AIROFLSHPCHR           AIROFLSHSTFL   + 1
921 #define AIROFLPUTBUF           AIROFLSHPCHR   + 1
922 #define AIRORESTART            AIROFLPUTBUF   + 1
923 
924 #define FLASHSIZE       32768
925 #define AUXMEMSIZE      (256 * 1024)
926 
927 typedef struct aironet_ioctl {
928         unsigned short command;         // What to do
929         unsigned short len;             // Len of data
930         unsigned short ridnum;          // rid number
931         unsigned char __user *data;     // d-data
932 } aironet_ioctl;
933 
934 static const char swversion[] = "2.1";
935 #endif /* CISCO_EXT */
936 
937 #define NUM_MODULES       2
938 #define MIC_MSGLEN_MAX    2400
939 #define EMMH32_MSGLEN_MAX MIC_MSGLEN_MAX
940 #define AIRO_DEF_MTU      2312
941 
942 typedef struct {
943         u32   size;            // size
944         u8    enabled;         // MIC enabled or not
945         u32   rxSuccess;       // successful packets received
946         u32   rxIncorrectMIC;  // pkts dropped due to incorrect MIC comparison
947         u32   rxNotMICed;      // pkts dropped due to not being MIC'd
948         u32   rxMICPlummed;    // pkts dropped due to not having a MIC plummed
949         u32   rxWrongSequence; // pkts dropped due to sequence number violation
950         u32   reserve[32];
951 } mic_statistics;
952 
953 typedef struct {
954         u32 coeff[((EMMH32_MSGLEN_MAX)+3)>>2];
955         u64 accum;      // accumulated mic, reduced to u32 in final()
956         int position;   // current position (byte offset) in message
957         union {
958                 u8  d8[4];
959                 __be32 d32;
960         } part; // saves partial message word across update() calls
961 } emmh32_context;
962 
963 typedef struct {
964         emmh32_context seed;        // Context - the seed
965         u32              rx;        // Received sequence number
966         u32              tx;        // Tx sequence number
967         u32              window;    // Start of window
968         u8               valid;     // Flag to say if context is valid or not
969         u8               key[16];
970 } miccntx;
971 
972 typedef struct {
973         miccntx mCtx;           // Multicast context
974         miccntx uCtx;           // Unicast context
975 } mic_module;
976 
977 typedef struct {
978         unsigned int  rid: 16;
979         unsigned int  len: 15;
980         unsigned int  valid: 1;
981         dma_addr_t host_addr;
982 } Rid;
983 
984 typedef struct {
985         unsigned int  offset: 15;
986         unsigned int  eoc: 1;
987         unsigned int  len: 15;
988         unsigned int  valid: 1;
989         dma_addr_t host_addr;
990 } TxFid;
991 
992 struct rx_hdr {
993         __le16 status, len;
994         u8 rssi[2];
995         u8 rate;
996         u8 freq;
997         __le16 tmp[4];
998 } __packed;
999 
1000 typedef struct {
1001         unsigned int  ctl: 15;
1002         unsigned int  rdy: 1;
1003         unsigned int  len: 15;
1004         unsigned int  valid: 1;
1005         dma_addr_t host_addr;
1006 } RxFid;
1007 
1008 /*
1009  * Host receive descriptor
1010  */
1011 typedef struct {
1012         unsigned char __iomem *card_ram_off; /* offset into card memory of the
1013                                                 desc */
1014         RxFid         rx_desc;               /* card receive descriptor */
1015         char          *virtual_host_addr;    /* virtual address of host receive
1016                                                 buffer */
1017         int           pending;
1018 } HostRxDesc;
1019 
1020 /*
1021  * Host transmit descriptor
1022  */
1023 typedef struct {
1024         unsigned char __iomem *card_ram_off;         /* offset into card memory of the
1025                                                 desc */
1026         TxFid         tx_desc;               /* card transmit descriptor */
1027         char          *virtual_host_addr;    /* virtual address of host receive
1028                                                 buffer */
1029         int           pending;
1030 } HostTxDesc;
1031 
1032 /*
1033  * Host RID descriptor
1034  */
1035 typedef struct {
1036         unsigned char __iomem *card_ram_off;      /* offset into card memory of the
1037                                              descriptor */
1038         Rid           rid_desc;           /* card RID descriptor */
1039         char          *virtual_host_addr; /* virtual address of host receive
1040                                              buffer */
1041 } HostRidDesc;
1042 
1043 typedef struct {
1044         u16 sw0;
1045         u16 sw1;
1046         u16 status;
1047         u16 len;
1048 #define HOST_SET (1 << 0)
1049 #define HOST_INT_TX (1 << 1) /* Interrupt on successful TX */
1050 #define HOST_INT_TXERR (1 << 2) /* Interrupt on unseccessful TX */
1051 #define HOST_LCC_PAYLOAD (1 << 4) /* LLC payload, 0 = Ethertype */
1052 #define HOST_DONT_RLSE (1 << 5) /* Don't release buffer when done */
1053 #define HOST_DONT_RETRY (1 << 6) /* Don't retry trasmit */
1054 #define HOST_CLR_AID (1 << 7) /* clear AID failure */
1055 #define HOST_RTS (1 << 9) /* Force RTS use */
1056 #define HOST_SHORT (1 << 10) /* Do short preamble */
1057         u16 ctl;
1058         u16 aid;
1059         u16 retries;
1060         u16 fill;
1061 } TxCtlHdr;
1062 
1063 typedef struct {
1064         u16 ctl;
1065         u16 duration;
1066         char addr1[6];
1067         char addr2[6];
1068         char addr3[6];
1069         u16 seq;
1070         char addr4[6];
1071 } WifiHdr;
1072 
1073 
1074 typedef struct {
1075         TxCtlHdr ctlhdr;
1076         u16 fill1;
1077         u16 fill2;
1078         WifiHdr wifihdr;
1079         u16 gaplen;
1080         u16 status;
1081 } WifiCtlHdr;
1082 
1083 static WifiCtlHdr wifictlhdr8023 = {
1084         .ctlhdr = {
1085                 .ctl    = HOST_DONT_RLSE,
1086         }
1087 };
1088 
1089 // A few details needed for WEP (Wireless Equivalent Privacy)
1090 #define MAX_KEY_SIZE 13                 // 128 (?) bits
1091 #define MIN_KEY_SIZE  5                 // 40 bits RC4 - WEP
1092 typedef struct wep_key_t {
1093         u16     len;
1094         u8      key[16];        /* 40-bit and 104-bit keys */
1095 } wep_key_t;
1096 
1097 /* List of Wireless Handlers (new API) */
1098 static const struct iw_handler_def      airo_handler_def;
1099 
1100 static const char version[] = "airo.c 0.6 (Ben Reed & Javier Achirica)";
1101 
1102 struct airo_info;
1103 
1104 static int get_dec_u16( char *buffer, int *start, int limit );
1105 static void OUT4500( struct airo_info *, u16 register, u16 value );
1106 static unsigned short IN4500( struct airo_info *, u16 register );
1107 static u16 setup_card(struct airo_info*, u8 *mac, int lock);
1108 static int enable_MAC(struct airo_info *ai, int lock);
1109 static void disable_MAC(struct airo_info *ai, int lock);
1110 static void enable_interrupts(struct airo_info*);
1111 static void disable_interrupts(struct airo_info*);
1112 static u16 issuecommand(struct airo_info*, Cmd *pCmd, Resp *pRsp);
1113 static int bap_setup(struct airo_info*, u16 rid, u16 offset, int whichbap);
1114 static int aux_bap_read(struct airo_info*, __le16 *pu16Dst, int bytelen,
1115                         int whichbap);
1116 static int fast_bap_read(struct airo_info*, __le16 *pu16Dst, int bytelen,
1117                          int whichbap);
1118 static int bap_write(struct airo_info*, const __le16 *pu16Src, int bytelen,
1119                      int whichbap);
1120 static int PC4500_accessrid(struct airo_info*, u16 rid, u16 accmd);
1121 static int PC4500_readrid(struct airo_info*, u16 rid, void *pBuf, int len, int lock);
1122 static int PC4500_writerid(struct airo_info*, u16 rid, const void
1123                            *pBuf, int len, int lock);
1124 static int do_writerid( struct airo_info*, u16 rid, const void *rid_data,
1125                         int len, int dummy );
1126 static u16 transmit_allocate(struct airo_info*, int lenPayload, int raw);
1127 static int transmit_802_3_packet(struct airo_info*, int len, char *pPacket);
1128 static int transmit_802_11_packet(struct airo_info*, int len, char *pPacket);
1129 
1130 static int mpi_send_packet (struct net_device *dev);
1131 static void mpi_unmap_card(struct pci_dev *pci);
1132 static void mpi_receive_802_3(struct airo_info *ai);
1133 static void mpi_receive_802_11(struct airo_info *ai);
1134 static int waitbusy (struct airo_info *ai);
1135 
1136 static irqreturn_t airo_interrupt( int irq, void* dev_id);
1137 static int airo_thread(void *data);
1138 static void timer_func( struct net_device *dev );
1139 static int airo_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
1140 static struct iw_statistics *airo_get_wireless_stats (struct net_device *dev);
1141 static void airo_read_wireless_stats (struct airo_info *local);
1142 #ifdef CISCO_EXT
1143 static int readrids(struct net_device *dev, aironet_ioctl *comp);
1144 static int writerids(struct net_device *dev, aironet_ioctl *comp);
1145 static int flashcard(struct net_device *dev, aironet_ioctl *comp);
1146 #endif /* CISCO_EXT */
1147 static void micinit(struct airo_info *ai);
1148 static int micsetup(struct airo_info *ai);
1149 static int encapsulate(struct airo_info *ai, etherHead *pPacket, MICBuffer *buffer, int len);
1150 static int decapsulate(struct airo_info *ai, MICBuffer *mic, etherHead *pPacket, u16 payLen);
1151 
1152 static u8 airo_rssi_to_dbm (tdsRssiEntry *rssi_rid, u8 rssi);
1153 static u8 airo_dbm_to_pct (tdsRssiEntry *rssi_rid, u8 dbm);
1154 
1155 static void airo_networks_free(struct airo_info *ai);
1156 
1157 struct airo_info {
1158         struct net_device             *dev;
1159         struct list_head              dev_list;
1160         /* Note, we can have MAX_FIDS outstanding.  FIDs are 16-bits, so we
1161            use the high bit to mark whether it is in use. */
1162 #define MAX_FIDS 6
1163 #define MPI_MAX_FIDS 1
1164         u32                           fids[MAX_FIDS];
1165         ConfigRid config;
1166         char keyindex; // Used with auto wep
1167         char defindex; // Used with auto wep
1168         struct proc_dir_entry *proc_entry;
1169         spinlock_t aux_lock;
1170 #define FLAG_RADIO_OFF  0       /* User disabling of MAC */
1171 #define FLAG_RADIO_DOWN 1       /* ifup/ifdown disabling of MAC */
1172 #define FLAG_RADIO_MASK 0x03
1173 #define FLAG_ENABLED    2
1174 #define FLAG_ADHOC      3       /* Needed by MIC */
1175 #define FLAG_MIC_CAPABLE 4
1176 #define FLAG_UPDATE_MULTI 5
1177 #define FLAG_UPDATE_UNI 6
1178 #define FLAG_802_11     7
1179 #define FLAG_PROMISC    8       /* IFF_PROMISC 0x100 - include/linux/if.h */
1180 #define FLAG_PENDING_XMIT 9
1181 #define FLAG_PENDING_XMIT11 10
1182 #define FLAG_MPI        11
1183 #define FLAG_REGISTERED 12
1184 #define FLAG_COMMIT     13
1185 #define FLAG_RESET      14
1186 #define FLAG_FLASHING   15
1187 #define FLAG_WPA_CAPABLE        16
1188         unsigned long flags;
1189 #define JOB_DIE 0
1190 #define JOB_XMIT        1
1191 #define JOB_XMIT11      2
1192 #define JOB_STATS       3
1193 #define JOB_PROMISC     4
1194 #define JOB_MIC 5
1195 #define JOB_EVENT       6
1196 #define JOB_AUTOWEP     7
1197 #define JOB_WSTATS      8
1198 #define JOB_SCAN_RESULTS  9
1199         unsigned long jobs;
1200         int (*bap_read)(struct airo_info*, __le16 *pu16Dst, int bytelen,
1201                         int whichbap);
1202         unsigned short *flash;
1203         tdsRssiEntry *rssi;
1204         struct task_struct *list_bss_task;
1205         struct task_struct *airo_thread_task;
1206         struct semaphore sem;
1207         wait_queue_head_t thr_wait;
1208         unsigned long expires;
1209         struct {
1210                 struct sk_buff *skb;
1211                 int fid;
1212         } xmit, xmit11;
1213         struct net_device *wifidev;
1214         struct iw_statistics    wstats;         // wireless stats
1215         unsigned long           scan_timeout;   /* Time scan should be read */
1216         struct iw_spy_data      spy_data;
1217         struct iw_public_data   wireless_data;
1218         /* MIC stuff */
1219         struct crypto_cipher    *tfm;
1220         mic_module              mod[2];
1221         mic_statistics          micstats;
1222         HostRxDesc rxfids[MPI_MAX_FIDS]; // rx/tx/config MPI350 descriptors
1223         HostTxDesc txfids[MPI_MAX_FIDS];
1224         HostRidDesc config_desc;
1225         unsigned long ridbus; // phys addr of config_desc
1226         struct sk_buff_head txq;// tx queue used by mpi350 code
1227         struct pci_dev          *pci;
1228         unsigned char           __iomem *pcimem;
1229         unsigned char           __iomem *pciaux;
1230         unsigned char           *shared;
1231         dma_addr_t              shared_dma;
1232         pm_message_t            power;
1233         SsidRid                 *SSID;
1234         APListRid               APList;
1235 #define PCI_SHARED_LEN          2*MPI_MAX_FIDS*PKTSIZE+RIDSIZE
1236         char                    proc_name[IFNAMSIZ];
1237 
1238         int                     wep_capable;
1239         int                     max_wep_idx;
1240         int                     last_auth;
1241 
1242         /* WPA-related stuff */
1243         unsigned int bssListFirst;
1244         unsigned int bssListNext;
1245         unsigned int bssListRidLen;
1246 
1247         struct list_head network_list;
1248         struct list_head network_free_list;
1249         BSSListElement *networks;
1250 };
1251 
1252 static inline int bap_read(struct airo_info *ai, __le16 *pu16Dst, int bytelen,
1253                            int whichbap)
1254 {
1255         return ai->bap_read(ai, pu16Dst, bytelen, whichbap);
1256 }
1257 
1258 static int setup_proc_entry( struct net_device *dev,
1259                              struct airo_info *apriv );
1260 static int takedown_proc_entry( struct net_device *dev,
1261                                 struct airo_info *apriv );
1262 
1263 static int cmdreset(struct airo_info *ai);
1264 static int setflashmode (struct airo_info *ai);
1265 static int flashgchar(struct airo_info *ai,int matchbyte,int dwelltime);
1266 static int flashputbuf(struct airo_info *ai);
1267 static int flashrestart(struct airo_info *ai,struct net_device *dev);
1268 
1269 #define airo_print(type, name, fmt, args...) \
1270         printk(type DRV_NAME "(%s): " fmt "\n", name, ##args)
1271 
1272 #define airo_print_info(name, fmt, args...) \
1273         airo_print(KERN_INFO, name, fmt, ##args)
1274 
1275 #define airo_print_dbg(name, fmt, args...) \
1276         airo_print(KERN_DEBUG, name, fmt, ##args)
1277 
1278 #define airo_print_warn(name, fmt, args...) \
1279         airo_print(KERN_WARNING, name, fmt, ##args)
1280 
1281 #define airo_print_err(name, fmt, args...) \
1282         airo_print(KERN_ERR, name, fmt, ##args)
1283 
1284 #define AIRO_FLASH(dev) (((struct airo_info *)dev->ml_priv)->flash)
1285 
1286 /***********************************************************************
1287  *                              MIC ROUTINES                           *
1288  ***********************************************************************
1289  */
1290 
1291 static int RxSeqValid (struct airo_info *ai,miccntx *context,int mcast,u32 micSeq);
1292 static void MoveWindow(miccntx *context, u32 micSeq);
1293 static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen,
1294                            struct crypto_cipher *tfm);
1295 static void emmh32_init(emmh32_context *context);
1296 static void emmh32_update(emmh32_context *context, u8 *pOctets, int len);
1297 static void emmh32_final(emmh32_context *context, u8 digest[4]);
1298 static int flashpchar(struct airo_info *ai,int byte,int dwelltime);
1299 
1300 static void age_mic_context(miccntx *cur, miccntx *old, u8 *key, int key_len,
1301                             struct crypto_cipher *tfm)
1302 {
1303         /* If the current MIC context is valid and its key is the same as
1304          * the MIC register, there's nothing to do.
1305          */
1306         if (cur->valid && (memcmp(cur->key, key, key_len) == 0))
1307                 return;
1308 
1309         /* Age current mic Context */
1310         memcpy(old, cur, sizeof(*cur));
1311 
1312         /* Initialize new context */
1313         memcpy(cur->key, key, key_len);
1314         cur->window  = 33; /* Window always points to the middle */
1315         cur->rx      = 0;  /* Rx Sequence numbers */
1316         cur->tx      = 0;  /* Tx sequence numbers */
1317         cur->valid   = 1;  /* Key is now valid */
1318 
1319         /* Give key to mic seed */
1320         emmh32_setseed(&cur->seed, key, key_len, tfm);
1321 }
1322 
1323 /* micinit - Initialize mic seed */
1324 
1325 static void micinit(struct airo_info *ai)
1326 {
1327         MICRid mic_rid;
1328 
1329         clear_bit(JOB_MIC, &ai->jobs);
1330         PC4500_readrid(ai, RID_MIC, &mic_rid, sizeof(mic_rid), 0);
1331         up(&ai->sem);
1332 
1333         ai->micstats.enabled = (le16_to_cpu(mic_rid.state) & 0x00FF) ? 1 : 0;
1334         if (!ai->micstats.enabled) {
1335                 /* So next time we have a valid key and mic is enabled, we will
1336                  * update the sequence number if the key is the same as before.
1337                  */
1338                 ai->mod[0].uCtx.valid = 0;
1339                 ai->mod[0].mCtx.valid = 0;
1340                 return;
1341         }
1342 
1343         if (mic_rid.multicastValid) {
1344                 age_mic_context(&ai->mod[0].mCtx, &ai->mod[1].mCtx,
1345                                 mic_rid.multicast, sizeof(mic_rid.multicast),
1346                                 ai->tfm);
1347         }
1348 
1349         if (mic_rid.unicastValid) {
1350                 age_mic_context(&ai->mod[0].uCtx, &ai->mod[1].uCtx,
1351                                 mic_rid.unicast, sizeof(mic_rid.unicast),
1352                                 ai->tfm);
1353         }
1354 }
1355 
1356 /* micsetup - Get ready for business */
1357 
1358 static int micsetup(struct airo_info *ai) {
1359         int i;
1360 
1361         if (ai->tfm == NULL)
1362                 ai->tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
1363 
1364         if (IS_ERR(ai->tfm)) {
1365                 airo_print_err(ai->dev->name, "failed to load transform for AES");
1366                 ai->tfm = NULL;
1367                 return ERROR;
1368         }
1369 
1370         for (i=0; i < NUM_MODULES; i++) {
1371                 memset(&ai->mod[i].mCtx,0,sizeof(miccntx));
1372                 memset(&ai->mod[i].uCtx,0,sizeof(miccntx));
1373         }
1374         return SUCCESS;
1375 }
1376 
1377 static const u8 micsnap[] = {0xAA,0xAA,0x03,0x00,0x40,0x96,0x00,0x02};
1378 
1379 /*===========================================================================
1380  * Description: Mic a packet
1381  *    
1382  *      Inputs: etherHead * pointer to an 802.3 frame
1383  *    
1384  *     Returns: BOOLEAN if successful, otherwise false.
1385  *             PacketTxLen will be updated with the mic'd packets size.
1386  *
1387  *    Caveats: It is assumed that the frame buffer will already
1388  *             be big enough to hold the largets mic message possible.
1389  *            (No memory allocation is done here).
1390  *  
1391  *    Author: sbraneky (10/15/01)
1392  *    Merciless hacks by rwilcher (1/14/02)
1393  */
1394 
1395 static int encapsulate(struct airo_info *ai ,etherHead *frame, MICBuffer *mic, int payLen)
1396 {
1397         miccntx   *context;
1398 
1399         // Determine correct context
1400         // If not adhoc, always use unicast key
1401 
1402         if (test_bit(FLAG_ADHOC, &ai->flags) && (frame->da[0] & 0x1))
1403                 context = &ai->mod[0].mCtx;
1404         else
1405                 context = &ai->mod[0].uCtx;
1406   
1407         if (!context->valid)
1408                 return ERROR;
1409 
1410         mic->typelen = htons(payLen + 16); //Length of Mic'd packet
1411 
1412         memcpy(&mic->u.snap, micsnap, sizeof(micsnap)); // Add Snap
1413 
1414         // Add Tx sequence
1415         mic->seq = htonl(context->tx);
1416         context->tx += 2;
1417 
1418         emmh32_init(&context->seed); // Mic the packet
1419         emmh32_update(&context->seed,frame->da,ETH_ALEN * 2); // DA,SA
1420         emmh32_update(&context->seed,(u8*)&mic->typelen,10); // Type/Length and Snap
1421         emmh32_update(&context->seed,(u8*)&mic->seq,sizeof(mic->seq)); //SEQ
1422         emmh32_update(&context->seed,(u8*)(frame + 1),payLen); //payload
1423         emmh32_final(&context->seed, (u8*)&mic->mic);
1424 
1425         /*    New Type/length ?????????? */
1426         mic->typelen = 0; //Let NIC know it could be an oversized packet
1427         return SUCCESS;
1428 }
1429 
1430 typedef enum {
1431     NONE,
1432     NOMIC,
1433     NOMICPLUMMED,
1434     SEQUENCE,
1435     INCORRECTMIC,
1436 } mic_error;
1437 
1438 /*===========================================================================
1439  *  Description: Decapsulates a MIC'd packet and returns the 802.3 packet
1440  *               (removes the MIC stuff) if packet is a valid packet.
1441  *      
1442  *       Inputs: etherHead  pointer to the 802.3 packet             
1443  *     
1444  *      Returns: BOOLEAN - TRUE if packet should be dropped otherwise FALSE
1445  *     
1446  *      Author: sbraneky (10/15/01)
1447  *    Merciless hacks by rwilcher (1/14/02)
1448  *---------------------------------------------------------------------------
1449  */
1450 
1451 static int decapsulate(struct airo_info *ai, MICBuffer *mic, etherHead *eth, u16 payLen)
1452 {
1453         int      i;
1454         u32      micSEQ;
1455         miccntx  *context;
1456         u8       digest[4];
1457         mic_error micError = NONE;
1458 
1459         // Check if the packet is a Mic'd packet
1460 
1461         if (!ai->micstats.enabled) {
1462                 //No Mic set or Mic OFF but we received a MIC'd packet.
1463                 if (memcmp ((u8*)eth + 14, micsnap, sizeof(micsnap)) == 0) {
1464                         ai->micstats.rxMICPlummed++;
1465                         return ERROR;
1466                 }
1467                 return SUCCESS;
1468         }
1469 
1470         if (ntohs(mic->typelen) == 0x888E)
1471                 return SUCCESS;
1472 
1473         if (memcmp (mic->u.snap, micsnap, sizeof(micsnap)) != 0) {
1474             // Mic enabled but packet isn't Mic'd
1475                 ai->micstats.rxMICPlummed++;
1476                 return ERROR;
1477         }
1478 
1479         micSEQ = ntohl(mic->seq);            //store SEQ as CPU order
1480 
1481         //At this point we a have a mic'd packet and mic is enabled
1482         //Now do the mic error checking.
1483 
1484         //Receive seq must be odd
1485         if ( (micSEQ & 1) == 0 ) {
1486                 ai->micstats.rxWrongSequence++;
1487                 return ERROR;
1488         }
1489 
1490         for (i = 0; i < NUM_MODULES; i++) {
1491                 int mcast = eth->da[0] & 1;
1492                 //Determine proper context 
1493                 context = mcast ? &ai->mod[i].mCtx : &ai->mod[i].uCtx;
1494         
1495                 //Make sure context is valid
1496                 if (!context->valid) {
1497                         if (i == 0)
1498                                 micError = NOMICPLUMMED;
1499                         continue;                
1500                 }
1501                 //DeMic it 
1502 
1503                 if (!mic->typelen)
1504                         mic->typelen = htons(payLen + sizeof(MICBuffer) - 2);
1505         
1506                 emmh32_init(&context->seed);
1507                 emmh32_update(&context->seed, eth->da, ETH_ALEN*2); 
1508                 emmh32_update(&context->seed, (u8 *)&mic->typelen, sizeof(mic->typelen)+sizeof(mic->u.snap)); 
1509                 emmh32_update(&context->seed, (u8 *)&mic->seq,sizeof(mic->seq));        
1510                 emmh32_update(&context->seed, (u8 *)(eth + 1),payLen);  
1511                 //Calculate MIC
1512                 emmh32_final(&context->seed, digest);
1513         
1514                 if (memcmp(digest, &mic->mic, 4)) { //Make sure the mics match
1515                   //Invalid Mic
1516                         if (i == 0)
1517                                 micError = INCORRECTMIC;
1518                         continue;
1519                 }
1520 
1521                 //Check Sequence number if mics pass
1522                 if (RxSeqValid(ai, context, mcast, micSEQ) == SUCCESS) {
1523                         ai->micstats.rxSuccess++;
1524                         return SUCCESS;
1525                 }
1526                 if (i == 0)
1527                         micError = SEQUENCE;
1528         }
1529 
1530         // Update statistics
1531         switch (micError) {
1532                 case NOMICPLUMMED: ai->micstats.rxMICPlummed++;   break;
1533                 case SEQUENCE:    ai->micstats.rxWrongSequence++; break;
1534                 case INCORRECTMIC: ai->micstats.rxIncorrectMIC++; break;
1535                 case NONE:  break;
1536                 case NOMIC: break;
1537         }
1538         return ERROR;
1539 }
1540 
1541 /*===========================================================================
1542  * Description:  Checks the Rx Seq number to make sure it is valid
1543  *               and hasn't already been received
1544  *   
1545  *     Inputs: miccntx - mic context to check seq against
1546  *             micSeq  - the Mic seq number
1547  *   
1548  *    Returns: TRUE if valid otherwise FALSE. 
1549  *
1550  *    Author: sbraneky (10/15/01)
1551  *    Merciless hacks by rwilcher (1/14/02)
1552  *---------------------------------------------------------------------------
1553  */
1554 
1555 static int RxSeqValid (struct airo_info *ai,miccntx *context,int mcast,u32 micSeq)
1556 {
1557         u32 seq,index;
1558 
1559         //Allow for the ap being rebooted - if it is then use the next 
1560         //sequence number of the current sequence number - might go backwards
1561 
1562         if (mcast) {
1563                 if (test_bit(FLAG_UPDATE_MULTI, &ai->flags)) {
1564                         clear_bit (FLAG_UPDATE_MULTI, &ai->flags);
1565                         context->window = (micSeq > 33) ? micSeq : 33;
1566                         context->rx     = 0;        // Reset rx
1567                 }
1568         } else if (test_bit(FLAG_UPDATE_UNI, &ai->flags)) {
1569                 clear_bit (FLAG_UPDATE_UNI, &ai->flags);
1570                 context->window = (micSeq > 33) ? micSeq : 33; // Move window
1571                 context->rx     = 0;        // Reset rx
1572         }
1573 
1574         //Make sequence number relative to START of window
1575         seq = micSeq - (context->window - 33);
1576 
1577         //Too old of a SEQ number to check.
1578         if ((s32)seq < 0)
1579                 return ERROR;
1580     
1581         if ( seq > 64 ) {
1582                 //Window is infinite forward
1583                 MoveWindow(context,micSeq);
1584                 return SUCCESS;
1585         }
1586 
1587         // We are in the window. Now check the context rx bit to see if it was already sent
1588         seq >>= 1;         //divide by 2 because we only have odd numbers
1589         index = 1 << seq;  //Get an index number
1590 
1591         if (!(context->rx & index)) {
1592                 //micSEQ falls inside the window.
1593                 //Add seqence number to the list of received numbers.
1594                 context->rx |= index;
1595 
1596                 MoveWindow(context,micSeq);
1597 
1598                 return SUCCESS;
1599         }
1600         return ERROR;
1601 }
1602 
1603 static void MoveWindow(miccntx *context, u32 micSeq)
1604 {
1605         u32 shift;
1606 
1607         //Move window if seq greater than the middle of the window
1608         if (micSeq > context->window) {
1609                 shift = (micSeq - context->window) >> 1;
1610     
1611                     //Shift out old
1612                 if (shift < 32)
1613                         context->rx >>= shift;
1614                 else
1615                         context->rx = 0;
1616 
1617                 context->window = micSeq;      //Move window
1618         }
1619 }
1620 
1621 /*==============================================*/
1622 /*========== EMMH ROUTINES  ====================*/
1623 /*==============================================*/
1624 
1625 /* mic accumulate */
1626 #define MIC_ACCUM(val)  \
1627         context->accum += (u64)(val) * context->coeff[coeff_position++];
1628 
1629 static unsigned char aes_counter[16];
1630 
1631 /* expand the key to fill the MMH coefficient array */
1632 static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen,
1633                            struct crypto_cipher *tfm)
1634 {
1635   /* take the keying material, expand if necessary, truncate at 16-bytes */
1636   /* run through AES counter mode to generate context->coeff[] */
1637   
1638         int i,j;
1639         u32 counter;
1640         u8 *cipher, plain[16];
1641 
1642         crypto_cipher_setkey(tfm, pkey, 16);
1643         counter = 0;
1644         for (i = 0; i < ARRAY_SIZE(context->coeff); ) {
1645                 aes_counter[15] = (u8)(counter >> 0);
1646                 aes_counter[14] = (u8)(counter >> 8);
1647                 aes_counter[13] = (u8)(counter >> 16);
1648                 aes_counter[12] = (u8)(counter >> 24);
1649                 counter++;
1650                 memcpy (plain, aes_counter, 16);
1651                 crypto_cipher_encrypt_one(tfm, plain, plain);
1652                 cipher = plain;
1653                 for (j = 0; (j < 16) && (i < ARRAY_SIZE(context->coeff)); ) {
1654                         context->coeff[i++] = ntohl(*(__be32 *)&cipher[j]);
1655                         j += 4;
1656                 }
1657         }
1658 }
1659 
1660 /* prepare for calculation of a new mic */
1661 static void emmh32_init(emmh32_context *context)
1662 {
1663         /* prepare for new mic calculation */
1664         context->accum = 0;
1665         context->position = 0;
1666 }
1667 
1668 /* add some bytes to the mic calculation */
1669 static void emmh32_update(emmh32_context *context, u8 *pOctets, int len)
1670 {
1671         int     coeff_position, byte_position;
1672   
1673         if (len == 0) return;
1674   
1675         coeff_position = context->position >> 2;
1676   
1677         /* deal with partial 32-bit word left over from last update */
1678         byte_position = context->position & 3;
1679         if (byte_position) {
1680                 /* have a partial word in part to deal with */
1681                 do {
1682                         if (len == 0) return;
1683                         context->part.d8[byte_position++] = *pOctets++;
1684                         context->position++;
1685                         len--;
1686                 } while (byte_position < 4);
1687                 MIC_ACCUM(ntohl(context->part.d32));
1688         }
1689 
1690         /* deal with full 32-bit words */
1691         while (len >= 4) {
1692                 MIC_ACCUM(ntohl(*(__be32 *)pOctets));
1693                 context->position += 4;
1694                 pOctets += 4;
1695                 len -= 4;
1696         }
1697 
1698         /* deal with partial 32-bit word that will be left over from this update */
1699         byte_position = 0;
1700         while (len > 0) {
1701                 context->part.d8[byte_position++] = *pOctets++;
1702                 context->position++;
1703                 len--;
1704         }
1705 }
1706 
1707 /* mask used to zero empty bytes for final partial word */
1708 static u32 mask32[4] = { 0x00000000L, 0xFF000000L, 0xFFFF0000L, 0xFFFFFF00L };
1709 
1710 /* calculate the mic */
1711 static void emmh32_final(emmh32_context *context, u8 digest[4])
1712 {
1713         int     coeff_position, byte_position;
1714         u32     val;
1715   
1716         u64 sum, utmp;
1717         s64 stmp;
1718 
1719         coeff_position = context->position >> 2;
1720   
1721         /* deal with partial 32-bit word left over from last update */
1722         byte_position = context->position & 3;
1723         if (byte_position) {
1724                 /* have a partial word in part to deal with */
1725                 val = ntohl(context->part.d32);
1726                 MIC_ACCUM(val & mask32[byte_position]); /* zero empty bytes */
1727         }
1728 
1729         /* reduce the accumulated u64 to a 32-bit MIC */
1730         sum = context->accum;
1731         stmp = (sum  & 0xffffffffLL) - ((sum >> 32)  * 15);
1732         utmp = (stmp & 0xffffffffLL) - ((stmp >> 32) * 15);
1733         sum = utmp & 0xffffffffLL;
1734         if (utmp > 0x10000000fLL)
1735                 sum -= 15;
1736 
1737         val = (u32)sum;
1738         digest[0] = (val>>24) & 0xFF;
1739         digest[1] = (val>>16) & 0xFF;
1740         digest[2] = (val>>8) & 0xFF;
1741         digest[3] = val & 0xFF;
1742 }
1743 
1744 static int readBSSListRid(struct airo_info *ai, int first,
1745                       BSSListRid *list)
1746 {
1747         Cmd cmd;
1748         Resp rsp;
1749 
1750         if (first == 1) {
1751                 if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN;
1752                 memset(&cmd, 0, sizeof(cmd));
1753                 cmd.cmd=CMD_LISTBSS;
1754                 if (down_interruptible(&ai->sem))
1755                         return -ERESTARTSYS;
1756                 ai->list_bss_task = current;
1757                 issuecommand(ai, &cmd, &rsp);
1758                 up(&ai->sem);
1759                 /* Let the command take effect */
1760                 schedule_timeout_uninterruptible(3 * HZ);
1761                 ai->list_bss_task = NULL;
1762         }
1763         return PC4500_readrid(ai, first ? ai->bssListFirst : ai->bssListNext,
1764                             list, ai->bssListRidLen, 1);
1765 }
1766 
1767 static int readWepKeyRid(struct airo_info *ai, WepKeyRid *wkr, int temp, int lock)
1768 {
1769         return PC4500_readrid(ai, temp ? RID_WEP_TEMP : RID_WEP_PERM,
1770                                 wkr, sizeof(*wkr), lock);
1771 }
1772 
1773 static int writeWepKeyRid(struct airo_info *ai, WepKeyRid *wkr, int perm, int lock)
1774 {
1775         int rc;
1776         rc = PC4500_writerid(ai, RID_WEP_TEMP, wkr, sizeof(*wkr), lock);
1777         if (rc!=SUCCESS)
1778                 airo_print_err(ai->dev->name, "WEP_TEMP set %x", rc);
1779         if (perm) {
1780                 rc = PC4500_writerid(ai, RID_WEP_PERM, wkr, sizeof(*wkr), lock);
1781                 if (rc!=SUCCESS)
1782                         airo_print_err(ai->dev->name, "WEP_PERM set %x", rc);
1783         }
1784         return rc;
1785 }
1786 
1787 static int readSsidRid(struct airo_info*ai, SsidRid *ssidr)
1788 {
1789         return PC4500_readrid(ai, RID_SSID, ssidr, sizeof(*ssidr), 1);
1790 }
1791 
1792 static int writeSsidRid(struct airo_info*ai, SsidRid *pssidr, int lock)
1793 {
1794         return PC4500_writerid(ai, RID_SSID, pssidr, sizeof(*pssidr), lock);
1795 }
1796 
1797 static int readConfigRid(struct airo_info *ai, int lock)
1798 {
1799         int rc;
1800         ConfigRid cfg;
1801 
1802         if (ai->config.len)
1803                 return SUCCESS;
1804 
1805         rc = PC4500_readrid(ai, RID_ACTUALCONFIG, &cfg, sizeof(cfg), lock);
1806         if (rc != SUCCESS)
1807                 return rc;
1808 
1809         ai->config = cfg;
1810         return SUCCESS;
1811 }
1812 
1813 static inline void checkThrottle(struct airo_info *ai)
1814 {
1815         int i;
1816 /* Old hardware had a limit on encryption speed */
1817         if (ai->config.authType != AUTH_OPEN && maxencrypt) {
1818                 for(i=0; i<8; i++) {
1819                         if (ai->config.rates[i] > maxencrypt) {
1820                                 ai->config.rates[i] = 0;
1821                         }
1822                 }
1823         }
1824 }
1825 
1826 static int writeConfigRid(struct airo_info *ai, int lock)
1827 {
1828         ConfigRid cfgr;
1829 
1830         if (!test_bit (FLAG_COMMIT, &ai->flags))
1831                 return SUCCESS;
1832 
1833         clear_bit (FLAG_COMMIT, &ai->flags);
1834         clear_bit (FLAG_RESET, &ai->flags);
1835         checkThrottle(ai);
1836         cfgr = ai->config;
1837 
1838         if ((cfgr.opmode & MODE_CFG_MASK) == MODE_STA_IBSS)
1839                 set_bit(FLAG_ADHOC, &ai->flags);
1840         else
1841                 clear_bit(FLAG_ADHOC, &ai->flags);
1842 
1843         return PC4500_writerid( ai, RID_CONFIG, &cfgr, sizeof(cfgr), lock);
1844 }
1845 
1846 static int readStatusRid(struct airo_info *ai, StatusRid *statr, int lock)
1847 {
1848         return PC4500_readrid(ai, RID_STATUS, statr, sizeof(*statr), lock);
1849 }
1850 
1851 static int writeAPListRid(struct airo_info *ai, APListRid *aplr, int lock)
1852 {
1853         return PC4500_writerid(ai, RID_APLIST, aplr, sizeof(*aplr), lock);
1854 }
1855 
1856 static int readCapabilityRid(struct airo_info *ai, CapabilityRid *capr, int lock)
1857 {
1858         return PC4500_readrid(ai, RID_CAPABILITIES, capr, sizeof(*capr), lock);
1859 }
1860 
1861 static int readStatsRid(struct airo_info*ai, StatsRid *sr, int rid, int lock)
1862 {
1863         return PC4500_readrid(ai, rid, sr, sizeof(*sr), lock);
1864 }
1865 
1866 static void try_auto_wep(struct airo_info *ai)
1867 {
1868         if (auto_wep && !test_bit(FLAG_RADIO_DOWN, &ai->flags)) {
1869                 ai->expires = RUN_AT(3*HZ);
1870                 wake_up_interruptible(&ai->thr_wait);
1871         }
1872 }
1873 
1874 static int airo_open(struct net_device *dev) {
1875         struct airo_info *ai = dev->ml_priv;
1876         int rc = 0;
1877 
1878         if (test_bit(FLAG_FLASHING, &ai->flags))
1879                 return -EIO;
1880 
1881         /* Make sure the card is configured.
1882          * Wireless Extensions may postpone config changes until the card
1883          * is open (to pipeline changes and speed-up card setup). If
1884          * those changes are not yet committed, do it now - Jean II */
1885         if (test_bit(FLAG_COMMIT, &ai->flags)) {
1886                 disable_MAC(ai, 1);
1887                 writeConfigRid(ai, 1);
1888         }
1889 
1890         if (ai->wifidev != dev) {
1891                 clear_bit(JOB_DIE, &ai->jobs);
1892                 ai->airo_thread_task = kthread_run(airo_thread, dev, "%s",
1893                                                    dev->name);
1894                 if (IS_ERR(ai->airo_thread_task))
1895                         return (int)PTR_ERR(ai->airo_thread_task);
1896 
1897                 rc = request_irq(dev->irq, airo_interrupt, IRQF_SHARED,
1898                         dev->name, dev);
1899                 if (rc) {
1900                         airo_print_err(dev->name,
1901                                 "register interrupt %d failed, rc %d",
1902                                 dev->irq, rc);
1903                         set_bit(JOB_DIE, &ai->jobs);
1904                         kthread_stop(ai->airo_thread_task);
1905                         return rc;
1906                 }
1907 
1908                 /* Power on the MAC controller (which may have been disabled) */
1909                 clear_bit(FLAG_RADIO_DOWN, &ai->flags);
1910                 enable_interrupts(ai);
1911 
1912                 try_auto_wep(ai);
1913         }
1914         enable_MAC(ai, 1);
1915 
1916         netif_start_queue(dev);
1917         return 0;
1918 }
1919 
1920 static netdev_tx_t mpi_start_xmit(struct sk_buff *skb,
1921                                         struct net_device *dev)
1922 {
1923         int npacks, pending;
1924         unsigned long flags;
1925         struct airo_info *ai = dev->ml_priv;
1926 
1927         if (!skb) {
1928                 airo_print_err(dev->name, "%s: skb == NULL!",__func__);
1929                 return NETDEV_TX_OK;
1930         }
1931         npacks = skb_queue_len (&ai->txq);
1932 
1933         if (npacks >= MAXTXQ - 1) {
1934                 netif_stop_queue (dev);
1935                 if (npacks > MAXTXQ) {
1936                         dev->stats.tx_fifo_errors++;
1937                         return NETDEV_TX_BUSY;
1938                 }
1939                 skb_queue_tail (&ai->txq, skb);
1940                 return NETDEV_TX_OK;
1941         }
1942 
1943         spin_lock_irqsave(&ai->aux_lock, flags);
1944         skb_queue_tail (&ai->txq, skb);
1945         pending = test_bit(FLAG_PENDING_XMIT, &ai->flags);
1946         spin_unlock_irqrestore(&ai->aux_lock,flags);
1947         netif_wake_queue (dev);
1948 
1949         if (pending == 0) {
1950                 set_bit(FLAG_PENDING_XMIT, &ai->flags);
1951                 mpi_send_packet (dev);
1952         }
1953         return NETDEV_TX_OK;
1954 }
1955 
1956 /*
1957  * @mpi_send_packet
1958  *
1959  * Attempt to transmit a packet. Can be called from interrupt
1960  * or transmit . return number of packets we tried to send
1961  */
1962 
1963 static int mpi_send_packet (struct net_device *dev)
1964 {
1965         struct sk_buff *skb;
1966         unsigned char *buffer;
1967         s16 len;
1968         __le16 *payloadLen;
1969         struct airo_info *ai = dev->ml_priv;
1970         u8 *sendbuf;
1971 
1972         /* get a packet to send */
1973 
1974         if ((skb = skb_dequeue(&ai->txq)) == NULL) {
1975                 airo_print_err(dev->name,
1976                         "%s: Dequeue'd zero in send_packet()",
1977                         __func__);
1978                 return 0;
1979         }
1980 
1981         /* check min length*/
1982         len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
1983         buffer = skb->data;
1984 
1985         ai->txfids[0].tx_desc.offset = 0;
1986         ai->txfids[0].tx_desc.valid = 1;
1987         ai->txfids[0].tx_desc.eoc = 1;
1988         ai->txfids[0].tx_desc.len =len+sizeof(WifiHdr);
1989 
1990 /*
1991  * Magic, the cards firmware needs a length count (2 bytes) in the host buffer
1992  * right after  TXFID_HDR.The TXFID_HDR contains the status short so payloadlen
1993  * is immediately after it. ------------------------------------------------
1994  *                         |TXFIDHDR+STATUS|PAYLOADLEN|802.3HDR|PACKETDATA|
1995  *                         ------------------------------------------------
1996  */
1997 
1998         memcpy(ai->txfids[0].virtual_host_addr,
1999                 (char *)&wifictlhdr8023, sizeof(wifictlhdr8023));
2000 
2001         payloadLen = (__le16 *)(ai->txfids[0].virtual_host_addr +
2002                 sizeof(wifictlhdr8023));
2003         sendbuf = ai->txfids[0].virtual_host_addr +
2004                 sizeof(wifictlhdr8023) + 2 ;
2005 
2006         /*
2007          * Firmware automatically puts 802 header on so
2008          * we don't need to account for it in the length
2009          */
2010         if (test_bit(FLAG_MIC_CAPABLE, &ai->flags) && ai->micstats.enabled &&
2011                 (ntohs(((__be16 *)buffer)[6]) != 0x888E)) {
2012                 MICBuffer pMic;
2013 
2014                 if (encapsulate(ai, (etherHead *)buffer, &pMic, len - sizeof(etherHead)) != SUCCESS)
2015                         return ERROR;
2016 
2017                 *payloadLen = cpu_to_le16(len-sizeof(etherHead)+sizeof(pMic));
2018                 ai->txfids[0].tx_desc.len += sizeof(pMic);
2019                 /* copy data into airo dma buffer */
2020                 memcpy (sendbuf, buffer, sizeof(etherHead));
2021                 buffer += sizeof(etherHead);
2022                 sendbuf += sizeof(etherHead);
2023                 memcpy (sendbuf, &pMic, sizeof(pMic));
2024                 sendbuf += sizeof(pMic);
2025                 memcpy (sendbuf, buffer, len - sizeof(etherHead));
2026         } else {
2027                 *payloadLen = cpu_to_le16(len - sizeof(etherHead));
2028 
2029                 dev->trans_start = jiffies;
2030 
2031                 /* copy data into airo dma buffer */
2032                 memcpy(sendbuf, buffer, len);
2033         }
2034 
2035         memcpy_toio(ai->txfids[0].card_ram_off,
2036                 &ai->txfids[0].tx_desc, sizeof(TxFid));
2037 
2038         OUT4500(ai, EVACK, 8);
2039 
2040         dev_kfree_skb_any(skb);
2041         return 1;
2042 }
2043 
2044 static void get_tx_error(struct airo_info *ai, s32 fid)
2045 {
2046         __le16 status;
2047 
2048         if (fid < 0)
2049                 status = ((WifiCtlHdr *)ai->txfids[0].virtual_host_addr)->ctlhdr.status;
2050         else {
2051                 if (bap_setup(ai, ai->fids[fid] & 0xffff, 4, BAP0) != SUCCESS)
2052                         return;
2053                 bap_read(ai, &status, 2, BAP0);
2054         }
2055         if (le16_to_cpu(status) & 2) /* Too many retries */
2056                 ai->dev->stats.tx_aborted_errors++;
2057         if (le16_to_cpu(status) & 4) /* Transmit lifetime exceeded */
2058                 ai->dev->stats.tx_heartbeat_errors++;
2059         if (le16_to_cpu(status) & 8) /* Aid fail */
2060                 { }
2061         if (le16_to_cpu(status) & 0x10) /* MAC disabled */
2062                 ai->dev->stats.tx_carrier_errors++;
2063         if (le16_to_cpu(status) & 0x20) /* Association lost */
2064                 { }
2065         /* We produce a TXDROP event only for retry or lifetime
2066          * exceeded, because that's the only status that really mean
2067          * that this particular node went away.
2068          * Other errors means that *we* screwed up. - Jean II */
2069         if ((le16_to_cpu(status) & 2) ||
2070              (le16_to_cpu(status) & 4)) {
2071                 union iwreq_data        wrqu;
2072                 char junk[0x18];
2073 
2074                 /* Faster to skip over useless data than to do
2075                  * another bap_setup(). We are at offset 0x6 and
2076                  * need to go to 0x18 and read 6 bytes - Jean II */
2077                 bap_read(ai, (__le16 *) junk, 0x18, BAP0);
2078 
2079                 /* Copy 802.11 dest address.
2080                  * We use the 802.11 header because the frame may
2081                  * not be 802.3 or may be mangled...
2082                  * In Ad-Hoc mode, it will be the node address.
2083                  * In managed mode, it will be most likely the AP addr
2084                  * User space will figure out how to convert it to
2085                  * whatever it needs (IP address or else).
2086                  * - Jean II */
2087                 memcpy(wrqu.addr.sa_data, junk + 0x12, ETH_ALEN);
2088                 wrqu.addr.sa_family = ARPHRD_ETHER;
2089 
2090                 /* Send event to user space */
2091                 wireless_send_event(ai->dev, IWEVTXDROP, &wrqu, NULL);
2092         }
2093 }
2094 
2095 static void airo_end_xmit(struct net_device *dev) {
2096         u16 status;
2097         int i;
2098         struct airo_info *priv = dev->ml_priv;
2099         struct sk_buff *skb = priv->xmit.skb;
2100         int fid = priv->xmit.fid;
2101         u32 *fids = priv->fids;
2102 
2103         clear_bit(JOB_XMIT, &priv->jobs);
2104         clear_bit(FLAG_PENDING_XMIT, &priv->flags);
2105         status = transmit_802_3_packet (priv, fids[fid], skb->data);
2106         up(&priv->sem);
2107 
2108         i = 0;
2109         if ( status == SUCCESS ) {
2110                 dev->trans_start = jiffies;
2111                 for (; i < MAX_FIDS / 2 && (priv->fids[i] & 0xffff0000); i++);
2112         } else {
2113                 priv->fids[fid] &= 0xffff;
2114                 dev->stats.tx_window_errors++;
2115         }
2116         if (i < MAX_FIDS / 2)
2117                 netif_wake_queue(dev);
2118         dev_kfree_skb(skb);
2119 }
2120 
2121 static netdev_tx_t airo_start_xmit(struct sk_buff *skb,
2122                                          struct net_device *dev)
2123 {
2124         s16 len;
2125         int i, j;
2126         struct airo_info *priv = dev->ml_priv;
2127         u32 *fids = priv->fids;
2128 
2129         if ( skb == NULL ) {
2130                 airo_print_err(dev->name, "%s: skb == NULL!", __func__);
2131                 return NETDEV_TX_OK;
2132         }
2133 
2134         /* Find a vacant FID */
2135         for( i = 0; i < MAX_FIDS / 2 && (fids[i] & 0xffff0000); i++ );
2136         for( j = i + 1; j < MAX_FIDS / 2 && (fids[j] & 0xffff0000); j++ );
2137 
2138         if ( j >= MAX_FIDS / 2 ) {
2139                 netif_stop_queue(dev);
2140 
2141                 if (i == MAX_FIDS / 2) {
2142                         dev->stats.tx_fifo_errors++;
2143                         return NETDEV_TX_BUSY;
2144                 }
2145         }
2146         /* check min length*/
2147         len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
2148         /* Mark fid as used & save length for later */
2149         fids[i] |= (len << 16);
2150         priv->xmit.skb = skb;
2151         priv->xmit.fid = i;
2152         if (down_trylock(&priv->sem) != 0) {
2153                 set_bit(FLAG_PENDING_XMIT, &priv->flags);
2154                 netif_stop_queue(dev);
2155                 set_bit(JOB_XMIT, &priv->jobs);
2156                 wake_up_interruptible(&priv->thr_wait);
2157         } else
2158                 airo_end_xmit(dev);
2159         return NETDEV_TX_OK;
2160 }
2161 
2162 static void airo_end_xmit11(struct net_device *dev) {
2163         u16 status;
2164         int i;
2165         struct airo_info *priv = dev->ml_priv;
2166         struct sk_buff *skb = priv->xmit11.skb;
2167         int fid = priv->xmit11.fid;
2168         u32 *fids = priv->fids;
2169 
2170         clear_bit(JOB_XMIT11, &priv->jobs);
2171         clear_bit(FLAG_PENDING_XMIT11, &priv->flags);
2172         status = transmit_802_11_packet (priv, fids[fid], skb->data);
2173         up(&priv->sem);
2174 
2175         i = MAX_FIDS / 2;
2176         if ( status == SUCCESS ) {
2177                 dev->trans_start = jiffies;
2178                 for (; i < MAX_FIDS && (priv->fids[i] & 0xffff0000); i++);
2179         } else {
2180                 priv->fids[fid] &= 0xffff;
2181                 dev->stats.tx_window_errors++;
2182         }
2183         if (i < MAX_FIDS)
2184                 netif_wake_queue(dev);
2185         dev_kfree_skb(skb);
2186 }
2187 
2188 static netdev_tx_t airo_start_xmit11(struct sk_buff *skb,
2189                                            struct net_device *dev)
2190 {
2191         s16 len;
2192         int i, j;
2193         struct airo_info *priv = dev->ml_priv;
2194         u32 *fids = priv->fids;
2195 
2196         if (test_bit(FLAG_MPI, &priv->flags)) {
2197                 /* Not implemented yet for MPI350 */
2198                 netif_stop_queue(dev);
2199                 dev_kfree_skb_any(skb);
2200                 return NETDEV_TX_OK;
2201         }
2202 
2203         if ( skb == NULL ) {
2204                 airo_print_err(dev->name, "%s: skb == NULL!", __func__);
2205                 return NETDEV_TX_OK;
2206         }
2207 
2208         /* Find a vacant FID */
2209         for( i = MAX_FIDS / 2; i < MAX_FIDS && (fids[i] & 0xffff0000); i++ );
2210         for( j = i + 1; j < MAX_FIDS && (fids[j] & 0xffff0000); j++ );
2211 
2212         if ( j >= MAX_FIDS ) {
2213                 netif_stop_queue(dev);
2214 
2215                 if (i == MAX_FIDS) {
2216                         dev->stats.tx_fifo_errors++;
2217                         return NETDEV_TX_BUSY;
2218                 }
2219         }
2220         /* check min length*/
2221         len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
2222         /* Mark fid as used & save length for later */
2223         fids[i] |= (len << 16);
2224         priv->xmit11.skb = skb;
2225         priv->xmit11.fid = i;
2226         if (down_trylock(&priv->sem) != 0) {
2227                 set_bit(FLAG_PENDING_XMIT11, &priv->flags);
2228                 netif_stop_queue(dev);
2229                 set_bit(JOB_XMIT11, &priv->jobs);
2230                 wake_up_interruptible(&priv->thr_wait);
2231         } else
2232                 airo_end_xmit11(dev);
2233         return NETDEV_TX_OK;
2234 }
2235 
2236 static void airo_read_stats(struct net_device *dev)
2237 {
2238         struct airo_info *ai = dev->ml_priv;
2239         StatsRid stats_rid;
2240         __le32 *vals = stats_rid.vals;
2241 
2242         clear_bit(JOB_STATS, &ai->jobs);
2243         if (ai->power.event) {
2244                 up(&ai->sem);
2245                 return;
2246         }
2247         readStatsRid(ai, &stats_rid, RID_STATS, 0);
2248         up(&ai->sem);
2249 
2250         dev->stats.rx_packets = le32_to_cpu(vals[43]) + le32_to_cpu(vals[44]) +
2251                                le32_to_cpu(vals[45]);
2252         dev->stats.tx_packets = le32_to_cpu(vals[39]) + le32_to_cpu(vals[40]) +
2253                                le32_to_cpu(vals[41]);
2254         dev->stats.rx_bytes = le32_to_cpu(vals[92]);
2255         dev->stats.tx_bytes = le32_to_cpu(vals[91]);
2256         dev->stats.rx_errors = le32_to_cpu(vals[0]) + le32_to_cpu(vals[2]) +
2257                               le32_to_cpu(vals[3]) + le32_to_cpu(vals[4]);
2258         dev->stats.tx_errors = le32_to_cpu(vals[42]) +
2259                               dev->stats.tx_fifo_errors;
2260         dev->stats.multicast = le32_to_cpu(vals[43]);
2261         dev->stats.collisions = le32_to_cpu(vals[89]);
2262 
2263         /* detailed rx_errors: */
2264         dev->stats.rx_length_errors = le32_to_cpu(vals[3]);
2265         dev->stats.rx_crc_errors = le32_to_cpu(vals[4]);
2266         dev->stats.rx_frame_errors = le32_to_cpu(vals[2]);
2267         dev->stats.rx_fifo_errors = le32_to_cpu(vals[0]);
2268 }
2269 
2270 static struct net_device_stats *airo_get_stats(struct net_device *dev)
2271 {
2272         struct airo_info *local =  dev->ml_priv;
2273 
2274         if (!test_bit(JOB_STATS, &local->jobs)) {
2275                 /* Get stats out of the card if available */
2276                 if (down_trylock(&local->sem) != 0) {
2277                         set_bit(JOB_STATS, &local->jobs);
2278                         wake_up_interruptible(&local->thr_wait);
2279                 } else
2280                         airo_read_stats(dev);
2281         }
2282 
2283         return &dev->stats;
2284 }
2285 
2286 static void airo_set_promisc(struct airo_info *ai) {
2287         Cmd cmd;
2288         Resp rsp;
2289 
2290         memset(&cmd, 0, sizeof(cmd));
2291         cmd.cmd=CMD_SETMODE;
2292         clear_bit(JOB_PROMISC, &ai->jobs);
2293         cmd.parm0=(ai->flags&IFF_PROMISC) ? PROMISC : NOPROMISC;
2294         issuecommand(ai, &cmd, &rsp);
2295         up(&ai->sem);
2296 }
2297 
2298 static void airo_set_multicast_list(struct net_device *dev) {
2299         struct airo_info *ai = dev->ml_priv;
2300 
2301         if ((dev->flags ^ ai->flags) & IFF_PROMISC) {
2302                 change_bit(FLAG_PROMISC, &ai->flags);
2303                 if (down_trylock(&ai->sem) != 0) {
2304                         set_bit(JOB_PROMISC, &ai->jobs);
2305                         wake_up_interruptible(&ai->thr_wait);
2306                 } else
2307                         airo_set_promisc(ai);
2308         }
2309 
2310         if ((dev->flags&IFF_ALLMULTI) || !netdev_mc_empty(dev)) {
2311                 /* Turn on multicast.  (Should be already setup...) */
2312         }
2313 }
2314 
2315 static int airo_set_mac_address(struct net_device *dev, void *p)
2316 {
2317         struct airo_info *ai = dev->ml_priv;
2318         struct sockaddr *addr = p;
2319 
2320         readConfigRid(ai, 1);
2321         memcpy (ai->config.macAddr, addr->sa_data, dev->addr_len);
2322         set_bit (FLAG_COMMIT, &ai->flags);
2323         disable_MAC(ai, 1);
2324         writeConfigRid (ai, 1);
2325         enable_MAC(ai, 1);
2326         memcpy (ai->dev->dev_addr, addr->sa_data, dev->addr_len);
2327         if (ai->wifidev)
2328                 memcpy (ai->wifidev->dev_addr, addr->sa_data, dev->addr_len);
2329         return 0;
2330 }
2331 
2332 static int airo_change_mtu(struct net_device *dev, int new_mtu)
2333 {
2334         if ((new_mtu < 68) || (new_mtu > 2400))
2335                 return -EINVAL;
2336         dev->mtu = new_mtu;
2337         return 0;
2338 }
2339 
2340 static LIST_HEAD(airo_devices);
2341 
2342 static void add_airo_dev(struct airo_info *ai)
2343 {
2344         /* Upper layers already keep track of PCI devices,
2345          * so we only need to remember our non-PCI cards. */
2346         if (!ai->pci)
2347                 list_add_tail(&ai->dev_list, &airo_devices);
2348 }
2349 
2350 static void del_airo_dev(struct airo_info *ai)
2351 {
2352         if (!ai->pci)
2353                 list_del(&ai->dev_list);
2354 }
2355 
2356 static int airo_close(struct net_device *dev) {
2357         struct airo_info *ai = dev->ml_priv;
2358 
2359         netif_stop_queue(dev);
2360 
2361         if (ai->wifidev != dev) {
2362 #ifdef POWER_ON_DOWN
2363                 /* Shut power to the card. The idea is that the user can save
2364                  * power when he doesn't need the card with "ifconfig down".
2365                  * That's the method that is most friendly towards the network
2366                  * stack (i.e. the network stack won't try to broadcast
2367                  * anything on the interface and routes are gone. Jean II */
2368                 set_bit(FLAG_RADIO_DOWN, &ai->flags);
2369                 disable_MAC(ai, 1);
2370 #endif
2371                 disable_interrupts( ai );
2372 
2373                 free_irq(dev->irq, dev);
2374 
2375                 set_bit(JOB_DIE, &ai->jobs);
2376                 kthread_stop(ai->airo_thread_task);
2377         }
2378         return 0;
2379 }
2380 
2381 void stop_airo_card( struct net_device *dev, int freeres )
2382 {
2383         struct airo_info *ai = dev->ml_priv;
2384 
2385         set_bit(FLAG_RADIO_DOWN, &ai->flags);
2386         disable_MAC(ai, 1);
2387         disable_interrupts(ai);
2388         takedown_proc_entry( dev, ai );
2389         if (test_bit(FLAG_REGISTERED, &ai->flags)) {
2390                 unregister_netdev( dev );
2391                 if (ai->wifidev) {
2392                         unregister_netdev(ai->wifidev);
2393                         free_netdev(ai->wifidev);
2394                         ai->wifidev = NULL;
2395                 }
2396                 clear_bit(FLAG_REGISTERED, &ai->flags);
2397         }
2398         /*
2399          * Clean out tx queue
2400          */
2401         if (test_bit(FLAG_MPI, &ai->flags) && !skb_queue_empty(&ai->txq)) {
2402                 struct sk_buff *skb = NULL;
2403                 for (;(skb = skb_dequeue(&ai->txq));)
2404                         dev_kfree_skb(skb);
2405         }
2406 
2407         airo_networks_free (ai);
2408 
2409         kfree(ai->flash);
2410         kfree(ai->rssi);
2411         kfree(ai->SSID);
2412         if (freeres) {
2413                 /* PCMCIA frees this stuff, so only for PCI and ISA */
2414                 release_region( dev->base_addr, 64 );
2415                 if (test_bit(FLAG_MPI, &ai->flags)) {
2416                         if (ai->pci)
2417                                 mpi_unmap_card(ai->pci);
2418                         if (ai->pcimem)
2419                                 iounmap(ai->pcimem);
2420                         if (ai->pciaux)
2421                                 iounmap(ai->pciaux);
2422                         pci_free_consistent(ai->pci, PCI_SHARED_LEN,
2423                                 ai->shared, ai->shared_dma);
2424                 }
2425         }
2426         crypto_free_cipher(ai->tfm);
2427         del_airo_dev(ai);
2428         free_netdev( dev );
2429 }
2430 
2431 EXPORT_SYMBOL(stop_airo_card);
2432 
2433 static int wll_header_parse(const struct sk_buff *skb, unsigned char *haddr)
2434 {
2435         memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN);
2436         return ETH_ALEN;
2437 }
2438 
2439 static void mpi_unmap_card(struct pci_dev *pci)
2440 {
2441         unsigned long mem_start = pci_resource_start(pci, 1);
2442         unsigned long mem_len = pci_resource_len(pci, 1);
2443         unsigned long aux_start = pci_resource_start(pci, 2);
2444         unsigned long aux_len = AUXMEMSIZE;
2445 
2446         release_mem_region(aux_start, aux_len);
2447         release_mem_region(mem_start, mem_len);
2448 }
2449 
2450 /*************************************************************
2451  *  This routine assumes that descriptors have been setup .
2452  *  Run at insmod time or after reset  when the decriptors
2453  *  have been initialized . Returns 0 if all is well nz
2454  *  otherwise . Does not allocate memory but sets up card
2455  *  using previously allocated descriptors.
2456  */
2457 static int mpi_init_descriptors (struct airo_info *ai)
2458 {
2459         Cmd cmd;
2460         Resp rsp;
2461         int i;
2462         int rc = SUCCESS;
2463 
2464         /* Alloc  card RX descriptors */
2465         netif_stop_queue(ai->dev);
2466 
2467         memset(&rsp,0,sizeof(rsp));
2468         memset(&cmd,0,sizeof(cmd));
2469 
2470         cmd.cmd = CMD_ALLOCATEAUX;
2471         cmd.parm0 = FID_RX;
2472         cmd.parm1 = (ai->rxfids[0].card_ram_off - ai->pciaux);
2473         cmd.parm2 = MPI_MAX_FIDS;
2474         rc=issuecommand(ai, &cmd, &rsp);
2475         if (rc != SUCCESS) {
2476                 airo_print_err(ai->dev->name, "Couldn't allocate RX FID");
2477                 return rc;
2478         }
2479 
2480         for (i=0; i<MPI_MAX_FIDS; i++) {
2481                 memcpy_toio(ai->rxfids[i].card_ram_off,
2482                         &ai->rxfids[i].rx_desc, sizeof(RxFid));
2483         }
2484 
2485         /* Alloc card TX descriptors */
2486 
2487         memset(&rsp,0,sizeof(rsp));
2488         memset(&cmd,0,sizeof(cmd));
2489 
2490         cmd.cmd = CMD_ALLOCATEAUX;
2491         cmd.parm0 = FID_TX;
2492         cmd.parm1 = (ai->txfids[0].card_ram_off - ai->pciaux);
2493         cmd.parm2 = MPI_MAX_FIDS;
2494 
2495         for (i=0; i<MPI_MAX_FIDS; i++) {
2496                 ai->txfids[i].tx_desc.valid = 1;
2497                 memcpy_toio(ai->txfids[i].card_ram_off,
2498                         &ai->txfids[i].tx_desc, sizeof(TxFid));
2499         }
2500         ai->txfids[i-1].tx_desc.eoc = 1; /* Last descriptor has EOC set */
2501 
2502         rc=issuecommand(ai, &cmd, &rsp);
2503         if (rc != SUCCESS) {
2504                 airo_print_err(ai->dev->name, "Couldn't allocate TX FID");
2505                 return rc;
2506         }
2507 
2508         /* Alloc card Rid descriptor */
2509         memset(&rsp,0,sizeof(rsp));
2510         memset(&cmd,0,sizeof(cmd));
2511 
2512         cmd.cmd = CMD_ALLOCATEAUX;
2513         cmd.parm0 = RID_RW;
2514         cmd.parm1 = (ai->config_desc.card_ram_off - ai->pciaux);
2515         cmd.parm2 = 1; /* Magic number... */
2516         rc=issuecommand(ai, &cmd, &rsp);
2517         if (rc != SUCCESS) {
2518                 airo_print_err(ai->dev->name, "Couldn't allocate RID");
2519                 return rc;
2520         }
2521 
2522         memcpy_toio(ai->config_desc.card_ram_off,
2523                 &ai->config_desc.rid_desc, sizeof(Rid));
2524 
2525         return rc;
2526 }
2527 
2528 /*
2529  * We are setting up three things here:
2530  * 1) Map AUX memory for descriptors: Rid, TxFid, or RxFid.
2531  * 2) Map PCI memory for issuing commands.
2532  * 3) Allocate memory (shared) to send and receive ethernet frames.
2533  */
2534 static int mpi_map_card(struct airo_info *ai, struct pci_dev *pci)
2535 {
2536         unsigned long mem_start, mem_len, aux_start, aux_len;
2537         int rc = -1;
2538         int i;
2539         dma_addr_t busaddroff;
2540         unsigned char *vpackoff;
2541         unsigned char __iomem *pciaddroff;
2542 
2543         mem_start = pci_resource_start(pci, 1);
2544         mem_len = pci_resource_len(pci, 1);
2545         aux_start = pci_resource_start(pci, 2);
2546         aux_len = AUXMEMSIZE;
2547 
2548         if (!request_mem_region(mem_start, mem_len, DRV_NAME)) {
2549                 airo_print_err("", "Couldn't get region %x[%x]",
2550                         (int)mem_start, (int)mem_len);
2551                 goto out;
2552         }
2553         if (!request_mem_region(aux_start, aux_len, DRV_NAME)) {
2554                 airo_print_err("", "Couldn't get region %x[%x]",
2555                         (int)aux_start, (int)aux_len);
2556                 goto free_region1;
2557         }
2558 
2559         ai->pcimem = ioremap(mem_start, mem_len);
2560         if (!ai->pcimem) {
2561                 airo_print_err("", "Couldn't map region %x[%x]",
2562                         (int)mem_start, (int)mem_len);
2563                 goto free_region2;
2564         }
2565         ai->pciaux = ioremap(aux_start, aux_len);
2566         if (!ai->pciaux) {
2567                 airo_print_err("", "Couldn't map region %x[%x]",
2568                         (int)aux_start, (int)aux_len);
2569                 goto free_memmap;
2570         }
2571 
2572         /* Reserve PKTSIZE for each fid and 2K for the Rids */
2573         ai->shared = pci_alloc_consistent(pci, PCI_SHARED_LEN, &ai->shared_dma);
2574         if (!ai->shared) {
2575                 airo_print_err("", "Couldn't alloc_consistent %d",
2576                         PCI_SHARED_LEN);
2577                 goto free_auxmap;
2578         }
2579 
2580         /*
2581          * Setup descriptor RX, TX, CONFIG
2582          */
2583         busaddroff = ai->shared_dma;
2584         pciaddroff = ai->pciaux + AUX_OFFSET;
2585         vpackoff   = ai->shared;
2586 
2587         /* RX descriptor setup */
2588         for(i = 0; i < MPI_MAX_FIDS; i++) {
2589                 ai->rxfids[i].pending = 0;
2590                 ai->rxfids[i].card_ram_off = pciaddroff;
2591                 ai->rxfids[i].virtual_host_addr = vpackoff;
2592                 ai->rxfids[i].rx_desc.host_addr = busaddroff;
2593                 ai->rxfids[i].rx_desc.valid = 1;
2594                 ai->rxfids[i].rx_desc.len = PKTSIZE;
2595                 ai->rxfids[i].rx_desc.rdy = 0;
2596 
2597                 pciaddroff += sizeof(RxFid);
2598                 busaddroff += PKTSIZE;
2599                 vpackoff   += PKTSIZE;
2600         }
2601 
2602         /* TX descriptor setup */
2603         for(i = 0; i < MPI_MAX_FIDS; i++) {
2604                 ai->txfids[i].card_ram_off = pciaddroff;
2605                 ai->txfids[i].virtual_host_addr = vpackoff;
2606                 ai->txfids[i].tx_desc.valid = 1;
2607                 ai->txfids[i].tx_desc.host_addr = busaddroff;
2608                 memcpy(ai->txfids[i].virtual_host_addr,
2609                         &wifictlhdr8023, sizeof(wifictlhdr8023));
2610 
2611                 pciaddroff += sizeof(TxFid);
2612                 busaddroff += PKTSIZE;
2613                 vpackoff   += PKTSIZE;
2614         }
2615         ai->txfids[i-1].tx_desc.eoc = 1; /* Last descriptor has EOC set */
2616 
2617         /* Rid descriptor setup */
2618         ai->config_desc.card_ram_off = pciaddroff;
2619         ai->config_desc.virtual_host_addr = vpackoff;
2620         ai->config_desc.rid_desc.host_addr = busaddroff;
2621         ai->ridbus = busaddroff;
2622         ai->config_desc.rid_desc.rid = 0;
2623         ai->config_desc.rid_desc.len = RIDSIZE;
2624         ai->config_desc.rid_desc.valid = 1;
2625         pciaddroff += sizeof(Rid);
2626         busaddroff += RIDSIZE;
2627         vpackoff   += RIDSIZE;
2628 
2629         /* Tell card about descriptors */
2630         if (mpi_init_descriptors (ai) != SUCCESS)
2631                 goto free_shared;
2632 
2633         return 0;
2634  free_shared:
2635         pci_free_consistent(pci, PCI_SHARED_LEN, ai->shared, ai->shared_dma);
2636  free_auxmap:
2637         iounmap(ai->pciaux);
2638  free_memmap:
2639         iounmap(ai->pcimem);
2640  free_region2:
2641         release_mem_region(aux_start, aux_len);
2642  free_region1:
2643         release_mem_region(mem_start, mem_len);
2644  out:
2645         return rc;
2646 }
2647 
2648 static const struct header_ops airo_header_ops = {
2649         .parse = wll_header_parse,
2650 };
2651 
2652 static const struct net_device_ops airo11_netdev_ops = {
2653         .ndo_open               = airo_open,
2654         .ndo_stop               = airo_close,
2655         .ndo_start_xmit         = airo_start_xmit11,
2656         .ndo_get_stats          = airo_get_stats,
2657         .ndo_set_mac_address    = airo_set_mac_address,
2658         .ndo_do_ioctl           = airo_ioctl,
2659         .ndo_change_mtu         = airo_change_mtu,
2660 };
2661 
2662 static void wifi_setup(struct net_device *dev)
2663 {
2664         dev->netdev_ops = &airo11_netdev_ops;
2665         dev->header_ops = &airo_header_ops;
2666         dev->wireless_handlers = &airo_handler_def;
2667 
2668         dev->type               = ARPHRD_IEEE80211;
2669         dev->hard_header_len    = ETH_HLEN;
2670         dev->mtu                = AIRO_DEF_MTU;
2671         dev->addr_len           = ETH_ALEN;
2672         dev->tx_queue_len       = 100; 
2673 
2674         eth_broadcast_addr(dev->broadcast);
2675 
2676         dev->flags              = IFF_BROADCAST|IFF_MULTICAST;
2677 }
2678 
2679 static struct net_device *init_wifidev(struct airo_info *ai,
2680                                         struct net_device *ethdev)
2681 {
2682         int err;
2683         struct net_device *dev = alloc_netdev(0, "wifi%d", NET_NAME_UNKNOWN,
2684                                               wifi_setup);
2685         if (!dev)
2686                 return NULL;
2687         dev->ml_priv = ethdev->ml_priv;
2688         dev->irq = ethdev->irq;
2689         dev->base_addr = ethdev->base_addr;
2690         dev->wireless_data = ethdev->wireless_data;
2691         SET_NETDEV_DEV(dev, ethdev->dev.parent);
2692         eth_hw_addr_inherit(dev, ethdev);
2693         err = register_netdev(dev);
2694         if (err<0) {
2695                 free_netdev(dev);
2696                 return NULL;
2697         }
2698         return dev;
2699 }
2700 
2701 static int reset_card( struct net_device *dev , int lock) {
2702         struct airo_info *ai = dev->ml_priv;
2703 
2704         if (lock && down_interruptible(&ai->sem))
2705                 return -1;
2706         waitbusy (ai);
2707         OUT4500(ai,COMMAND,CMD_SOFTRESET);
2708         msleep(200);
2709         waitbusy (ai);
2710         msleep(200);
2711         if (lock)
2712                 up(&ai->sem);
2713         return 0;
2714 }
2715 
2716 #define AIRO_MAX_NETWORK_COUNT  64
2717 static int airo_networks_allocate(struct airo_info *ai)
2718 {
2719         if (ai->networks)
2720                 return 0;
2721 
2722         ai->networks = kcalloc(AIRO_MAX_NETWORK_COUNT, sizeof(BSSListElement),
2723                                GFP_KERNEL);
2724         if (!ai->networks) {
2725                 airo_print_warn("", "Out of memory allocating beacons");
2726                 return -ENOMEM;
2727         }
2728 
2729         return 0;
2730 }
2731 
2732 static void airo_networks_free(struct airo_info *ai)
2733 {
2734         kfree(ai->networks);
2735         ai->networks = NULL;
2736 }
2737 
2738 static void airo_networks_initialize(struct airo_info *ai)
2739 {
2740         int i;
2741 
2742         INIT_LIST_HEAD(&ai->network_free_list);
2743         INIT_LIST_HEAD(&ai->network_list);
2744         for (i = 0; i < AIRO_MAX_NETWORK_COUNT; i++)
2745                 list_add_tail(&ai->networks[i].list,
2746                               &ai->network_free_list);
2747 }
2748 
2749 static const struct net_device_ops airo_netdev_ops = {
2750         .ndo_open               = airo_open,
2751         .ndo_stop               = airo_close,
2752         .ndo_start_xmit         = airo_start_xmit,
2753         .ndo_get_stats          = airo_get_stats,
2754         .ndo_set_rx_mode        = airo_set_multicast_list,
2755         .ndo_set_mac_address    = airo_set_mac_address,
2756         .ndo_do_ioctl           = airo_ioctl,
2757         .ndo_change_mtu         = airo_change_mtu,
2758         .ndo_validate_addr      = eth_validate_addr,
2759 };
2760 
2761 static const struct net_device_ops mpi_netdev_ops = {
2762         .ndo_open               = airo_open,
2763         .ndo_stop               = airo_close,
2764         .ndo_start_xmit         = mpi_start_xmit,
2765         .ndo_get_stats          = airo_get_stats,
2766         .ndo_set_rx_mode        = airo_set_multicast_list,
2767         .ndo_set_mac_address    = airo_set_mac_address,
2768         .ndo_do_ioctl           = airo_ioctl,
2769         .ndo_change_mtu         = airo_change_mtu,
2770         .ndo_validate_addr      = eth_validate_addr,
2771 };
2772 
2773 
2774 static struct net_device *_init_airo_card( unsigned short irq, int port,
2775                                            int is_pcmcia, struct pci_dev *pci,
2776                                            struct device *dmdev )
2777 {
2778         struct net_device *dev;
2779         struct airo_info *ai;
2780         int i, rc;
2781         CapabilityRid cap_rid;
2782 
2783         /* Create the network device object. */
2784         dev = alloc_netdev(sizeof(*ai), "", NET_NAME_UNKNOWN, ether_setup);
2785         if (!dev) {
2786                 airo_print_err("", "Couldn't alloc_etherdev");
2787                 return NULL;
2788         }
2789 
2790         ai = dev->ml_priv = netdev_priv(dev);
2791         ai->wifidev = NULL;
2792         ai->flags = 1 << FLAG_RADIO_DOWN;
2793         ai->jobs = 0;
2794         ai->dev = dev;
2795         if (pci && (pci->device == 0x5000 || pci->device == 0xa504)) {
2796                 airo_print_dbg("", "Found an MPI350 card");
2797                 set_bit(FLAG_MPI, &ai->flags);
2798         }
2799         spin_lock_init(&ai->aux_lock);
2800         sema_init(&ai->sem, 1);
2801         ai->config.len = 0;
2802         ai->pci = pci;
2803         init_waitqueue_head (&ai->thr_wait);
2804         ai->tfm = NULL;
2805         add_airo_dev(ai);
2806         ai->APList.len = cpu_to_le16(sizeof(struct APListRid));
2807 
2808         if (airo_networks_allocate (ai))
2809                 goto err_out_free;
2810         airo_networks_initialize (ai);
2811 
2812         skb_queue_head_init (&ai->txq);
2813 
2814         /* The Airo-specific entries in the device structure. */
2815         if (test_bit(FLAG_MPI,&ai->flags))
2816                 dev->netdev_ops = &mpi_netdev_ops;
2817         else
2818                 dev->netdev_ops = &airo_netdev_ops;
2819         dev->wireless_handlers = &airo_handler_def;
2820         ai->wireless_data.spy_data = &ai->spy_data;
2821         dev->wireless_data = &ai->wireless_data;
2822         dev->irq = irq;
2823         dev->base_addr = port;
2824         dev->priv_flags &= ~IFF_TX_SKB_SHARING;
2825 
2826         SET_NETDEV_DEV(dev, dmdev);
2827 
2828         reset_card (dev, 1);
2829         msleep(400);
2830 
2831         if (!is_pcmcia) {
2832                 if (!request_region(dev->base_addr, 64, DRV_NAME)) {
2833                         rc = -EBUSY;
2834                         airo_print_err(dev->name, "Couldn't request region");
2835                         goto err_out_nets;
2836                 }
2837         }
2838 
2839         if (test_bit(FLAG_MPI,&ai->flags)) {
2840                 if (mpi_map_card(ai, pci)) {
2841                         airo_print_err("", "Could not map memory");
2842                         goto err_out_res;
2843                 }
2844         }
2845 
2846         if (probe) {
2847                 if (setup_card(ai, dev->dev_addr, 1) != SUCCESS) {
2848                         airo_print_err(dev->name, "MAC could not be enabled" );
2849                         rc = -EIO;
2850                         goto err_out_map;
2851                 }
2852         } else if (!test_bit(FLAG_MPI,&ai->flags)) {
2853                 ai->bap_read = fast_bap_read;
2854                 set_bit(FLAG_FLASHING, &ai->flags);
2855         }
2856 
2857         strcpy(dev->name, "eth%d");
2858         rc = register_netdev(dev);
2859         if (rc) {
2860                 airo_print_err(dev->name, "Couldn't register_netdev");
2861                 goto err_out_map;
2862         }
2863         ai->wifidev = init_wifidev(ai, dev);
2864         if (!ai->wifidev)
2865                 goto err_out_reg;
2866 
2867         rc = readCapabilityRid(ai, &cap_rid, 1);
2868         if (rc != SUCCESS) {
2869                 rc = -EIO;
2870                 goto err_out_wifi;
2871         }
2872         /* WEP capability discovery */
2873         ai->wep_capable = (cap_rid.softCap & cpu_to_le16(0x02)) ? 1 : 0;
2874         ai->max_wep_idx = (cap_rid.softCap & cpu_to_le16(0x80)) ? 3 : 0;
2875 
2876         airo_print_info(dev->name, "Firmware version %x.%x.%02d",
2877                         ((le16_to_cpu(cap_rid.softVer) >> 8) & 0xF),
2878                         (le16_to_cpu(cap_rid.softVer) & 0xFF),
2879                         le16_to_cpu(cap_rid.softSubVer));
2880 
2881         /* Test for WPA support */
2882         /* Only firmware versions 5.30.17 or better can do WPA */
2883         if (le16_to_cpu(cap_rid.softVer) > 0x530
2884          || (le16_to_cpu(cap_rid.softVer) == 0x530
2885               && le16_to_cpu(cap_rid.softSubVer) >= 17)) {
2886                 airo_print_info(ai->dev->name, "WPA supported.");
2887 
2888                 set_bit(FLAG_WPA_CAPABLE, &ai->flags);
2889                 ai->bssListFirst = RID_WPA_BSSLISTFIRST;
2890                 ai->bssListNext = RID_WPA_BSSLISTNEXT;
2891                 ai->bssListRidLen = sizeof(BSSListRid);
2892         } else {
2893                 airo_print_info(ai->dev->name, "WPA unsupported with firmware "
2894                         "versions older than 5.30.17.");
2895 
2896                 ai->bssListFirst = RID_BSSLISTFIRST;
2897                 ai->bssListNext = RID_BSSLISTNEXT;
2898                 ai->bssListRidLen = sizeof(BSSListRid) - sizeof(BSSListRidExtra);
2899         }
2900 
2901         set_bit(FLAG_REGISTERED,&ai->flags);
2902         airo_print_info(dev->name, "MAC enabled %pM", dev->dev_addr);
2903 
2904         /* Allocate the transmit buffers */
2905         if (probe && !test_bit(FLAG_MPI,&ai->flags))
2906                 for( i = 0; i < MAX_FIDS; i++ )
2907                         ai->fids[i] = transmit_allocate(ai,AIRO_DEF_MTU,i>=MAX_FIDS/2);
2908 
2909         if (setup_proc_entry(dev, dev->ml_priv) < 0)
2910                 goto err_out_wifi;
2911 
2912         return dev;
2913 
2914 err_out_wifi:
2915         unregister_netdev(ai->wifidev);
2916         free_netdev(ai->wifidev);
2917 err_out_reg:
2918         unregister_netdev(dev);
2919 err_out_map:
2920         if (test_bit(FLAG_MPI,&ai->flags) && pci) {
2921                 pci_free_consistent(pci, PCI_SHARED_LEN, ai->shared, ai->shared_dma);
2922                 iounmap(ai->pciaux);
2923                 iounmap(ai->pcimem);
2924                 mpi_unmap_card(ai->pci);
2925         }
2926 err_out_res:
2927         if (!is_pcmcia)
2928                 release_region( dev->base_addr, 64 );
2929 err_out_nets:
2930         airo_networks_free(ai);
2931 err_out_free:
2932         del_airo_dev(ai);
2933         free_netdev(dev);
2934         return NULL;
2935 }
2936 
2937 struct net_device *init_airo_card( unsigned short irq, int port, int is_pcmcia,
2938                                   struct device *dmdev)
2939 {
2940         return _init_airo_card ( irq, port, is_pcmcia, NULL, dmdev);
2941 }
2942 
2943 EXPORT_SYMBOL(init_airo_card);
2944 
2945 static int waitbusy (struct airo_info *ai) {
2946         int delay = 0;
2947         while ((IN4500(ai, COMMAND) & COMMAND_BUSY) && (delay < 10000)) {
2948                 udelay (10);
2949                 if ((++delay % 20) == 0)
2950                         OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
2951         }
2952         return delay < 10000;
2953 }
2954 
2955 int reset_airo_card( struct net_device *dev )
2956 {
2957         int i;
2958         struct airo_info *ai = dev->ml_priv;
2959 
2960         if (reset_card (dev, 1))
2961                 return -1;
2962 
2963         if ( setup_card(ai, dev->dev_addr, 1 ) != SUCCESS ) {
2964                 airo_print_err(dev->name, "MAC could not be enabled");
2965                 return -1;
2966         }
2967         airo_print_info(dev->name, "MAC enabled %pM", dev->dev_addr);
2968         /* Allocate the transmit buffers if needed */
2969         if (!test_bit(FLAG_MPI,&ai->flags))
2970                 for( i = 0; i < MAX_FIDS; i++ )
2971                         ai->fids[i] = transmit_allocate (ai,AIRO_DEF_MTU,i>=MAX_FIDS/2);
2972 
2973         enable_interrupts( ai );
2974         netif_wake_queue(dev);
2975         return 0;
2976 }
2977 
2978 EXPORT_SYMBOL(reset_airo_card);
2979 
2980 static void airo_send_event(struct net_device *dev) {
2981         struct airo_info *ai = dev->ml_priv;
2982         union iwreq_data wrqu;
2983         StatusRid status_rid;
2984 
2985         clear_bit(JOB_EVENT, &ai->jobs);
2986         PC4500_readrid(ai, RID_STATUS, &status_rid, sizeof(status_rid), 0);
2987         up(&ai->sem);
2988         wrqu.data.length = 0;
2989         wrqu.data.flags = 0;
2990         memcpy(wrqu.ap_addr.sa_data, status_rid.bssid[0], ETH_ALEN);
2991         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
2992 
2993         /* Send event to user space */
2994         wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
2995 }
2996 
2997 static void airo_process_scan_results (struct airo_info *ai) {
2998         union iwreq_data        wrqu;
2999         BSSListRid bss;
3000         int rc;
3001         BSSListElement * loop_net;
3002         BSSListElement * tmp_net;
3003 
3004         /* Blow away current list of scan results */
3005         list_for_each_entry_safe (loop_net, tmp_net, &ai->network_list, list) {
3006                 list_move_tail (&loop_net->list, &ai->network_free_list);
3007                 /* Don't blow away ->list, just BSS data */
3008                 memset (loop_net, 0, sizeof (loop_net->bss));
3009         }
3010 
3011         /* Try to read the first entry of the scan result */
3012         rc = PC4500_readrid(ai, ai->bssListFirst, &bss, ai->bssListRidLen, 0);
3013         if((rc) || (bss.index == cpu_to_le16(0xffff))) {
3014                 /* No scan results */
3015                 goto out;
3016         }
3017 
3018         /* Read and parse all entries */
3019         tmp_net = NULL;
3020         while((!rc) && (bss.index != cpu_to_le16(0xffff))) {
3021                 /* Grab a network off the free list */
3022                 if (!list_empty(&ai->network_free_list)) {
3023                         tmp_net = list_entry(ai->network_free_list.next,
3024                                             BSSListElement, list);
3025                         list_del(ai->network_free_list.next);
3026                 }
3027 
3028                 if (tmp_net != NULL) {
3029                         memcpy(tmp_net, &bss, sizeof(tmp_net->bss));
3030                         list_add_tail(&tmp_net->list, &ai->network_list);
3031                         tmp_net = NULL;
3032                 }
3033 
3034                 /* Read next entry */
3035                 rc = PC4500_readrid(ai, ai->bssListNext,
3036                                     &bss, ai->bssListRidLen, 0);
3037         }
3038 
3039 out:
3040         /* write APList back (we cleared it in airo_set_scan) */
3041         disable_MAC(ai, 2);
3042         writeAPListRid(ai, &ai->APList, 0);
3043         enable_MAC(ai, 0);
3044 
3045         ai->scan_timeout = 0;
3046         clear_bit(JOB_SCAN_RESULTS, &ai->jobs);
3047         up(&ai->sem);
3048 
3049         /* Send an empty event to user space.
3050          * We don't send the received data on
3051          * the event because it would require
3052          * us to do complex transcoding, and
3053          * we want to minimise the work done in
3054          * the irq handler. Use a request to
3055          * extract the data - Jean II */
3056         wrqu.data.length = 0;
3057         wrqu.data.flags = 0;
3058         wireless_send_event(ai->dev, SIOCGIWSCAN, &wrqu, NULL);
3059 }
3060 
3061 static int airo_thread(void *data) {
3062         struct net_device *dev = data;
3063         struct airo_info *ai = dev->ml_priv;
3064         int locked;
3065 
3066         set_freezable();
3067         while(1) {
3068                 /* make swsusp happy with our thread */
3069                 try_to_freeze();
3070 
3071                 if (test_bit(JOB_DIE, &ai->jobs))
3072                         break;
3073 
3074                 if (ai->jobs) {
3075                         locked = down_interruptible(&ai->sem);
3076                 } else {
3077                         wait_queue_t wait;
3078 
3079                         init_waitqueue_entry(&wait, current);
3080                         add_wait_queue(&ai->thr_wait, &wait);
3081                         for (;;) {
3082                                 set_current_state(TASK_INTERRUPTIBLE);
3083                                 if (ai->jobs)
3084                                         break;
3085                                 if (ai->expires || ai->scan_timeout) {
3086                                         if (ai->scan_timeout &&
3087                                                         time_after_eq(jiffies,ai->scan_timeout)){
3088                                                 set_bit(JOB_SCAN_RESULTS, &ai->jobs);
3089                                                 break;
3090                                         } else if (ai->expires &&
3091                                                         time_after_eq(jiffies,ai->expires)){
3092                                                 set_bit(JOB_AUTOWEP, &ai->jobs);
3093                                                 break;
3094                                         }
3095                                         if (!kthread_should_stop() &&
3096                                             !freezing(current)) {
3097                                                 unsigned long wake_at;
3098                                                 if (!ai->expires || !ai->scan_timeout) {
3099                                                         wake_at = max(ai->expires,
3100                                                                 ai->scan_timeout);
3101                                                 } else {
3102                                                         wake_at = min(ai->expires,
3103                                                                 ai->scan_timeout);
3104                                                 }
3105                                                 schedule_timeout(wake_at - jiffies);
3106                                                 continue;
3107                                         }
3108                                 } else if (!kthread_should_stop() &&
3109                                            !freezing(current)) {
3110                                         schedule();
3111                                         continue;
3112                                 }
3113                                 break;
3114                         }
3115                         current->state = TASK_RUNNING;
3116                         remove_wait_queue(&ai->thr_wait, &wait);
3117                         locked = 1;
3118                 }
3119 
3120                 if (locked)
3121                         continue;
3122 
3123                 if (test_bit(JOB_DIE, &ai->jobs)) {
3124                         up(&ai->sem);
3125                         break;
3126                 }
3127 
3128                 if (ai->power.event || test_bit(FLAG_FLASHING, &ai->flags)) {
3129                         up(&ai->sem);
3130                         continue;
3131                 }
3132 
3133                 if (test_bit(JOB_XMIT, &ai->jobs))
3134                         airo_end_xmit(dev);
3135                 else if (test_bit(JOB_XMIT11, &ai->jobs))
3136                         airo_end_xmit11(dev);
3137                 else if (test_bit(JOB_STATS, &ai->jobs))
3138                         airo_read_stats(dev);
3139                 else if (test_bit(JOB_WSTATS, &ai->jobs))
3140                         airo_read_wireless_stats(ai);
3141                 else if (test_bit(JOB_PROMISC, &ai->jobs))
3142                         airo_set_promisc(ai);
3143                 else if (test_bit(JOB_MIC, &ai->jobs))
3144                         micinit(ai);
3145                 else if (test_bit(JOB_EVENT, &ai->jobs))
3146                         airo_send_event(dev);
3147                 else if (test_bit(JOB_AUTOWEP, &ai->jobs))
3148                         timer_func(dev);
3149                 else if (test_bit(JOB_SCAN_RESULTS, &ai->jobs))
3150                         airo_process_scan_results(ai);
3151                 else  /* Shouldn't get here, but we make sure to unlock */
3152                         up(&ai->sem);
3153         }
3154 
3155         return 0;
3156 }
3157 
3158 static int header_len(__le16 ctl)
3159 {
3160         u16 fc = le16_to_cpu(ctl);
3161         switch (fc & 0xc) {
3162         case 4:
3163                 if ((fc & 0xe0) == 0xc0)
3164                         return 10;      /* one-address control packet */
3165                 return 16;      /* two-address control packet */
3166         case 8:
3167                 if ((fc & 0x300) == 0x300)
3168                         return 30;      /* WDS packet */
3169         }
3170         return 24;
3171 }
3172 
3173 static void airo_handle_cisco_mic(struct airo_info *ai)
3174 {
3175         if (test_bit(FLAG_MIC_CAPABLE, &ai->flags)) {
3176                 set_bit(JOB_MIC, &ai->jobs);
3177                 wake_up_interruptible(&ai->thr_wait);
3178         }
3179 }
3180 
3181 /* Airo Status codes */
3182 #define STAT_NOBEACON   0x8000 /* Loss of sync - missed beacons */
3183 #define STAT_MAXRETRIES 0x8001 /* Loss of sync - max retries */
3184 #define STAT_MAXARL     0x8002 /* Loss of sync - average retry level exceeded*/
3185 #define STAT_FORCELOSS  0x8003 /* Loss of sync - host request */
3186 #define STAT_TSFSYNC    0x8004 /* Loss of sync - TSF synchronization */
3187 #define STAT_DEAUTH     0x8100 /* low byte is 802.11 reason code */
3188 #define STAT_DISASSOC   0x8200 /* low byte is 802.11 reason code */
3189 #define STAT_ASSOC_FAIL 0x8400 /* low byte is 802.11 reason code */
3190 #define STAT_AUTH_FAIL  0x0300 /* low byte is 802.11 reason code */
3191 #define STAT_ASSOC      0x0400 /* Associated */
3192 #define STAT_REASSOC    0x0600 /* Reassociated?  Only on firmware >= 5.30.17 */
3193 
3194 static void airo_print_status(const char *devname, u16 status)
3195 {
3196         u8 reason = status & 0xFF;
3197 
3198         switch (status & 0xFF00) {
3199         case STAT_NOBEACON:
3200                 switch (status) {
3201                 case STAT_NOBEACON:
3202                         airo_print_dbg(devname, "link lost (missed beacons)");
3203                         break;
3204                 case STAT_MAXRETRIES:
3205                 case STAT_MAXARL:
3206                         airo_print_dbg(devname, "link lost (max retries)");
3207                         break;
3208                 case STAT_FORCELOSS:
3209                         airo_print_dbg(devname, "link lost (local choice)");
3210                         break;
3211                 case STAT_TSFSYNC:
3212                         airo_print_dbg(devname, "link lost (TSF sync lost)");
3213                         break;
3214                 default:
3215                         airo_print_dbg(devname, "unknown status %x\n", status);
3216                         break;
3217                 }
3218                 break;
3219         case STAT_DEAUTH:
3220                 airo_print_dbg(devname, "deauthenticated (reason: %d)", reason);
3221                 break;
3222         case STAT_DISASSOC:
3223                 airo_print_dbg(devname, "disassociated (reason: %d)", reason);
3224                 break;
3225         case STAT_ASSOC_FAIL:
3226                 airo_print_dbg(devname, "association failed (reason: %d)",
3227                                reason);
3228                 break;
3229         case STAT_AUTH_FAIL:
3230                 airo_print_dbg(devname, "authentication failed (reason: %d)",
3231                                reason);
3232                 break;
3233         case STAT_ASSOC:
3234         case STAT_REASSOC:
3235                 break;
3236         default:
3237                 airo_print_dbg(devname, "unknown status %x\n", status);
3238                 break;
3239         }
3240 }
3241 
3242 static void airo_handle_link(struct airo_info *ai)
3243 {
3244         union iwreq_data wrqu;
3245         int scan_forceloss = 0;
3246         u16 status;
3247 
3248         /* Get new status and acknowledge the link change */
3249         status = le16_to_cpu(IN4500(ai, LINKSTAT));
3250         OUT4500(ai, EVACK, EV_LINK);
3251 
3252         if ((status == STAT_FORCELOSS) && (ai->scan_timeout > 0))
3253                 scan_forceloss = 1;
3254 
3255         airo_print_status(ai->dev->name, status);
3256 
3257         if ((status == STAT_ASSOC) || (status == STAT_REASSOC)) {
3258                 if (auto_wep)
3259                         ai->expires = 0;
3260                 if (ai->list_bss_task)
3261                         wake_up_process(ai->list_bss_task);
3262                 set_bit(FLAG_UPDATE_UNI, &ai->flags);
3263                 set_bit(FLAG_UPDATE_MULTI, &ai->flags);
3264 
3265                 if (down_trylock(&ai->sem) != 0) {
3266                         set_bit(JOB_EVENT, &ai->jobs);
3267                         wake_up_interruptible(&ai->thr_wait);
3268                 } else
3269                         airo_send_event(ai->dev);
3270                 netif_carrier_on(ai->dev);
3271         } else if (!scan_forceloss) {
3272                 if (auto_wep && !ai->expires) {
3273                         ai->expires = RUN_AT(3*HZ);
3274                         wake_up_interruptible(&ai->thr_wait);
3275                 }
3276 
3277                 /* Send event to user space */
3278                 eth_zero_addr(wrqu.ap_addr.sa_data);
3279                 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3280                 wireless_send_event(ai->dev, SIOCGIWAP, &wrqu, NULL);
3281                 netif_carrier_off(ai->dev);
3282         } else {
3283                 netif_carrier_off(ai->dev);
3284         }
3285 }
3286 
3287 static void airo_handle_rx(struct airo_info *ai)
3288 {
3289         struct sk_buff *skb = NULL;
3290         __le16 fc, v, *buffer, tmpbuf[4];
3291         u16 len, hdrlen = 0, gap, fid;
3292         struct rx_hdr hdr;
3293         int success = 0;
3294 
3295         if (test_bit(FLAG_MPI, &ai->flags)) {
3296                 if (test_bit(FLAG_802_11, &ai->flags))
3297                         mpi_receive_802_11(ai);
3298                 else
3299                         mpi_receive_802_3(ai);
3300                 OUT4500(ai, EVACK, EV_RX);
3301                 return;
3302         }
3303 
3304         fid = IN4500(ai, RXFID);
3305 
3306         /* Get the packet length */
3307         if (test_bit(FLAG_802_11, &ai->flags)) {
3308                 bap_setup (ai, fid, 4, BAP0);
3309                 bap_read (ai, (__le16*)&hdr, sizeof(hdr), BAP0);
3310                 /* Bad CRC. Ignore packet */
3311                 if (le16_to_cpu(hdr.status) & 2)
3312                         hdr.len = 0;
3313                 if (ai->wifidev == NULL)
3314                         hdr.len = 0;
3315         } else {
3316                 bap_setup(ai, fid, 0x36, BAP0);
3317                 bap_read(ai, &hdr.len, 2, BAP0);
3318         }
3319         len = le16_to_cpu(hdr.len);
3320 
3321         if (len > AIRO_DEF_MTU) {
3322                 airo_print_err(ai->dev->name, "Bad size %d", len);
3323                 goto done;
3324         }
3325         if (len == 0)
3326                 goto done;
3327 
3328         if (test_bit(FLAG_802_11, &ai->flags)) {
3329                 bap_read(ai, &fc, sizeof (fc), BAP0);
3330                 hdrlen = header_len(fc);
3331         } else
3332                 hdrlen = ETH_ALEN * 2;
3333 
3334         skb = dev_alloc_skb(len + hdrlen + 2 + 2);
3335         if (!skb) {
3336                 ai->dev->stats.rx_dropped++;
3337                 goto done;
3338         }
3339 
3340         skb_reserve(skb, 2); /* This way the IP header is aligned */
3341         buffer = (__le16 *) skb_put(skb, len + hdrlen);
3342         if (test_bit(FLAG_802_11, &ai->flags)) {
3343                 buffer[0] = fc;
3344                 bap_read(ai, buffer + 1, hdrlen - 2, BAP0);
3345                 if (hdrlen == 24)
3346                         bap_read(ai, tmpbuf, 6, BAP0);
3347 
3348                 bap_read(ai, &v, sizeof(v), BAP0);
3349                 gap = le16_to_cpu(v);
3350                 if (gap) {
3351                         if (gap <= 8) {
3352                                 bap_read(ai, tmpbuf, gap, BAP0);
3353                         } else {
3354                                 airo_print_err(ai->dev->name, "gaplen too "
3355                                         "big. Problems will follow...");
3356                         }
3357                 }
3358                 bap_read(ai, buffer + hdrlen/2, len, BAP0);
3359         } else {
3360                 MICBuffer micbuf;
3361 
3362                 bap_read(ai, buffer, ETH_ALEN * 2, BAP0);
3363                 if (ai->micstats.enabled) {
3364                         bap_read(ai, (__le16 *) &micbuf, sizeof (micbuf), BAP0);
3365                         if (ntohs(micbuf.typelen) > 0x05DC)
3366                                 bap_setup(ai, fid, 0x44, BAP0);
3367                         else {
3368                                 if (len <= sizeof (micbuf)) {
3369                                         dev_kfree_skb_irq(skb);
3370                                         goto done;
3371                                 }
3372 
3373                                 len -= sizeof(micbuf);
3374                                 skb_trim(skb, len + hdrlen);
3375                         }
3376                 }
3377 
3378                 bap_read(ai, buffer + ETH_ALEN, len, BAP0);
3379                 if (decapsulate(ai, &micbuf, (etherHead*) buffer, len))
3380                         dev_kfree_skb_irq (skb);
3381                 else
3382                         success = 1;
3383         }
3384 
3385 #ifdef WIRELESS_SPY
3386         if (success && (ai->spy_data.spy_number > 0)) {
3387                 char *sa;
3388                 struct iw_quality wstats;
3389 
3390                 /* Prepare spy data : addr + qual */
3391                 if (!test_bit(FLAG_802_11, &ai->flags)) {
3392                         sa = (char *) buffer + 6;
3393                         bap_setup(ai, fid, 8, BAP0);
3394                         bap_read(ai, (__le16 *) hdr.rssi, 2, BAP0);
3395                 } else
3396                         sa = (char *) buffer + 10;
3397                 wstats.qual = hdr.rssi[0];
3398                 if (ai->rssi)
3399                         wstats.level = 0x100 - ai->rssi[hdr.rssi[1]].rssidBm;
3400                 else
3401                         wstats.level = (hdr.rssi[1] + 321) / 2;
3402                 wstats.noise = ai->wstats.qual.noise;
3403                 wstats.updated =  IW_QUAL_LEVEL_UPDATED
3404                                 | IW_QUAL_QUAL_UPDATED
3405                                 | IW_QUAL_DBM;
3406                 /* Update spy records */
3407                 wireless_spy_update(ai->dev, sa, &wstats);
3408         }
3409 #endif /* WIRELESS_SPY */
3410 
3411 done:
3412         OUT4500(ai, EVACK, EV_RX);
3413 
3414         if (success) {
3415                 if (test_bit(FLAG_802_11, &ai->flags)) {
3416                         skb_reset_mac_header(skb);
3417                         skb->pkt_type = PACKET_OTHERHOST;
3418                         skb->dev = ai->wifidev;
3419                         skb->protocol = htons(ETH_P_802_2);
3420                 } else
3421                         skb->protocol = eth_type_trans(skb, ai->dev);
3422                 skb->ip_summed = CHECKSUM_NONE;
3423 
3424                 netif_rx(skb);
3425         }
3426 }
3427 
3428 static void airo_handle_tx(struct airo_info *ai, u16 status)
3429 {
3430         int i, len = 0, index = -1;
3431         u16 fid;
3432 
3433         if (test_bit(FLAG_MPI, &ai->flags)) {
3434                 unsigned long flags;
3435 
3436                 if (status & EV_TXEXC)
3437                         get_tx_error(ai, -1);
3438 
3439                 spin_lock_irqsave(&ai->aux_lock, flags);
3440                 if (!skb_queue_empty(&ai->txq)) {
3441                         spin_unlock_irqrestore(&ai->aux_lock,flags);
3442                         mpi_send_packet(ai->dev);
3443                 } else {
3444                         clear_bit(FLAG_PENDING_XMIT, &ai->flags);
3445                         spin_unlock_irqrestore(&ai->aux_lock,flags);
3446                         netif_wake_queue(ai->dev);
3447                 }
3448                 OUT4500(ai, EVACK, status & (EV_TX | EV_TXCPY | EV_TXEXC));
3449                 return;
3450         }
3451 
3452         fid = IN4500(ai, TXCOMPLFID);
3453 
3454         for(i = 0; i < MAX_FIDS; i++) {
3455                 if ((ai->fids[i] & 0xffff) == fid) {
3456                         len = ai->fids[i] >> 16;
3457                         index = i;
3458                 }
3459         }
3460 
3461         if (index != -1) {
3462                 if (status & EV_TXEXC)
3463                         get_tx_error(ai, index);
3464 
3465                 OUT4500(ai, EVACK, status & (EV_TX | EV_TXEXC));
3466 
3467                 /* Set up to be used again */
3468                 ai->fids[index] &= 0xffff;
3469                 if (index < MAX_FIDS / 2) {
3470                         if (!test_bit(FLAG_PENDING_XMIT, &ai->flags))
3471                                 netif_wake_queue(ai->dev);
3472                 } else {
3473                         if (!test_bit(FLAG_PENDING_XMIT11, &ai->flags))
3474                                 netif_wake_queue(ai->wifidev);
3475                 }
3476         } else {
3477                 OUT4500(ai, EVACK, status & (EV_TX | EV_TXCPY | EV_TXEXC));
3478                 airo_print_err(ai->dev->name, "Unallocated FID was used to xmit");
3479         }
3480 }
3481 
3482 static irqreturn_t airo_interrupt(int irq, void *dev_id)
3483 {
3484         struct net_device *dev = dev_id;
3485         u16 status, savedInterrupts = 0;
3486         struct airo_info *ai = dev->ml_priv;
3487         int handled = 0;
3488 
3489         if (!netif_device_present(dev))
3490                 return IRQ_NONE;
3491 
3492         for (;;) {
3493                 status = IN4500(ai, EVSTAT);
3494                 if (!(status & STATUS_INTS) || (status == 0xffff))
3495                         break;
3496 
3497                 handled = 1;
3498 
3499                 if (status & EV_AWAKE) {
3500                         OUT4500(ai, EVACK, EV_AWAKE);
3501                         OUT4500(ai, EVACK, EV_AWAKE);
3502                 }
3503 
3504                 if (!savedInterrupts) {
3505                         savedInterrupts = IN4500(ai, EVINTEN);
3506                         OUT4500(ai, EVINTEN, 0);
3507                 }
3508 
3509                 if (status & EV_MIC) {
3510                         OUT4500(ai, EVACK, EV_MIC);
3511                         airo_handle_cisco_mic(ai);
3512                 }
3513 
3514                 if (status & EV_LINK) {
3515                         /* Link status changed */
3516                         airo_handle_link(ai);
3517                 }
3518 
3519                 /* Check to see if there is something to receive */
3520                 if (status & EV_RX)
3521                         airo_handle_rx(ai);
3522 
3523                 /* Check to see if a packet has been transmitted */
3524                 if (status & (EV_TX | EV_TXCPY | EV_TXEXC))
3525                         airo_handle_tx(ai, status);
3526 
3527                 if ( status & ~STATUS_INTS & ~IGNORE_INTS ) {
3528                         airo_print_warn(ai->dev->name, "Got weird status %x",
3529                                 status & ~STATUS_INTS & ~IGNORE_INTS );
3530                 }
3531         }
3532 
3533         if (savedInterrupts)
3534                 OUT4500(ai, EVINTEN, savedInterrupts);
3535 
3536         return IRQ_RETVAL(handled);
3537 }
3538 
3539 /*
3540  *  Routines to talk to the card
3541  */
3542 
3543 /*
3544  *  This was originally written for the 4500, hence the name
3545  *  NOTE:  If use with 8bit mode and SMP bad things will happen!
3546  *         Why would some one do 8 bit IO in an SMP machine?!?
3547  */
3548 static void OUT4500( struct airo_info *ai, u16 reg, u16 val ) {
3549         if (test_bit(FLAG_MPI,&ai->flags))
3550                 reg <<= 1;
3551         if ( !do8bitIO )
3552                 outw( val, ai->dev->base_addr + reg );
3553         else {
3554                 outb( val & 0xff, ai->dev->base_addr + reg );
3555                 outb( val >> 8, ai->dev->base_addr + reg + 1 );
3556         }
3557 }
3558 
3559 static u16 IN4500( struct airo_info *ai, u16 reg ) {
3560         unsigned short rc;
3561 
3562         if (test_bit(FLAG_MPI,&ai->flags))
3563                 reg <<= 1;
3564         if ( !do8bitIO )
3565                 rc = inw( ai->dev->base_addr + reg );
3566         else {
3567                 rc = inb( ai->dev->base_addr + reg );
3568                 rc += ((int)inb( ai->dev->base_addr + reg + 1 )) << 8;
3569         }
3570         return rc;
3571 }
3572 
3573 static int enable_MAC(struct airo_info *ai, int lock)
3574 {
3575         int rc;
3576         Cmd cmd;
3577         Resp rsp;
3578 
3579         /* FLAG_RADIO_OFF : Radio disabled via /proc or Wireless Extensions
3580          * FLAG_RADIO_DOWN : Radio disabled via "ifconfig ethX down"
3581          * Note : we could try to use !netif_running(dev) in enable_MAC()
3582          * instead of this flag, but I don't trust it *within* the
3583          * open/close functions, and testing both flags together is
3584          * "cheaper" - Jean II */
3585         if (ai->flags & FLAG_RADIO_MASK) return SUCCESS;
3586 
3587         if (lock && down_interruptible(&ai->sem))
3588                 return -ERESTARTSYS;
3589 
3590         if (!test_bit(FLAG_ENABLED, &ai->flags)) {
3591                 memset(&cmd, 0, sizeof(cmd));
3592                 cmd.cmd = MAC_ENABLE;
3593                 rc = issuecommand(ai, &cmd, &rsp);
3594                 if (rc == SUCCESS)
3595                         set_bit(FLAG_ENABLED, &ai->flags);
3596         } else
3597                 rc = SUCCESS;
3598 
3599         if (lock)
3600             up(&ai->sem);
3601 
3602         if (rc)
3603                 airo_print_err(ai->dev->name, "Cannot enable MAC");
3604         else if ((rsp.status & 0xFF00) != 0) {
3605                 airo_print_err(ai->dev->name, "Bad MAC enable reason=%x, "
3606                         "rid=%x, offset=%d", rsp.rsp0, rsp.rsp1, rsp.rsp2);
3607                 rc = ERROR;
3608         }
3609         return rc;
3610 }
3611 
3612 static void disable_MAC( struct airo_info *ai, int lock ) {
3613         Cmd cmd;
3614         Resp rsp;
3615 
3616         if (lock == 1 && down_interruptible(&ai->sem))
3617                 return;
3618 
3619         if (test_bit(FLAG_ENABLED, &ai->flags)) {
3620                 if (lock != 2) /* lock == 2 means don't disable carrier */
3621                         netif_carrier_off(ai->dev);
3622                 memset(&cmd, 0, sizeof(cmd));
3623                 cmd.cmd = MAC_DISABLE; // disable in case already enabled
3624                 issuecommand(ai, &cmd, &rsp);
3625                 clear_bit(FLAG_ENABLED, &ai->flags);
3626         }
3627         if (lock == 1)
3628                 up(&ai->sem);
3629 }
3630 
3631 static void enable_interrupts( struct airo_info *ai ) {
3632         /* Enable the interrupts */
3633         OUT4500( ai, EVINTEN, STATUS_INTS );
3634 }
3635 
3636 static void disable_interrupts( struct airo_info *ai ) {
3637         OUT4500( ai, EVINTEN, 0 );
3638 }
3639 
3640 static void mpi_receive_802_3(struct airo_info *ai)
3641 {
3642         RxFid rxd;
3643         int len = 0;
3644         struct sk_buff *skb;
3645         char *buffer;
3646         int off = 0;
3647         MICBuffer micbuf;
3648 
3649         memcpy_fromio(&rxd, ai->rxfids[0].card_ram_off, sizeof(rxd));
3650         /* Make sure we got something */
3651         if (rxd.rdy && rxd.valid == 0) {
3652                 len = rxd.len + 12;
3653                 if (len < 12 || len > 2048)
3654                         goto badrx;
3655 
3656                 skb = dev_alloc_skb(len);
3657                 if (!skb) {
3658                         ai->dev->stats.rx_dropped++;
3659                         goto badrx;
3660                 }
3661                 buffer = skb_put(skb,len);
3662                 memcpy(buffer, ai->rxfids[0].virtual_host_addr, ETH_ALEN * 2);
3663                 if (ai->micstats.enabled) {
3664                         memcpy(&micbuf,
3665                                 ai->rxfids[0].virtual_host_addr + ETH_ALEN * 2,
3666                                 sizeof(micbuf));
3667                         if (ntohs(micbuf.typelen) <= 0x05DC) {
3668                                 if (len <= sizeof(micbuf) + ETH_ALEN * 2)
3669                                         goto badmic;
3670 
3671                                 off = sizeof(micbuf);
3672                                 skb_trim (skb, len - off);
3673                         }
3674                 }
3675                 memcpy(buffer + ETH_ALEN * 2,
3676                         ai->rxfids[0].virtual_host_addr + ETH_ALEN * 2 + off,
3677                         len - ETH_ALEN * 2 - off);
3678                 if (decapsulate (ai, &micbuf, (etherHead*)buffer, len - off - ETH_ALEN * 2)) {
3679 badmic:
3680                         dev_kfree_skb_irq (skb);
3681                         goto badrx;
3682                 }
3683 #ifdef WIRELESS_SPY
3684                 if (ai->spy_data.spy_number > 0) {
3685                         char *sa;
3686                         struct iw_quality wstats;
3687                         /* Prepare spy data : addr + qual */
3688                         sa = buffer + ETH_ALEN;
3689                         wstats.qual = 0; /* XXX Where do I get that info from ??? */
3690                         wstats.level = 0;
3691                         wstats.updated = 0;
3692                         /* Update spy records */
3693                         wireless_spy_update(ai->dev, sa, &wstats);
3694                 }
3695 #endif /* WIRELESS_SPY */
3696 
3697                 skb->ip_summed = CHECKSUM_NONE;
3698                 skb->protocol = eth_type_trans(skb, ai->dev);
3699                 netif_rx(skb);
3700         }
3701 badrx:
3702         if (rxd.valid == 0) {
3703                 rxd.valid = 1;
3704                 rxd.rdy = 0;
3705                 rxd.len = PKTSIZE;
3706                 memcpy_toio(ai->rxfids[0].card_ram_off, &rxd, sizeof(rxd));
3707         }
3708 }
3709 
3710 static void mpi_receive_802_11(struct airo_info *ai)
3711 {
3712         RxFid rxd;
3713         struct sk_buff *skb = NULL;
3714         u16 len, hdrlen = 0;
3715         __le16 fc;
3716         struct rx_hdr hdr;
3717         u16 gap;
3718         u16 *buffer;
3719         char *ptr = ai->rxfids[0].virtual_host_addr + 4;
3720 
3721         memcpy_fromio(&rxd, ai->rxfids[0].card_ram_off, sizeof(rxd));
3722         memcpy ((char *)&hdr, ptr, sizeof(hdr));
3723         ptr += sizeof(hdr);
3724         /* Bad CRC. Ignore packet */
3725         if (le16_to_cpu(hdr.status) & 2)
3726                 hdr.len = 0;
3727         if (ai->wifidev == NULL)
3728                 hdr.len = 0;
3729         len = le16_to_cpu(hdr.len);
3730         if (len > AIRO_DEF_MTU) {
3731                 airo_print_err(ai->dev->name, "Bad size %d", len);
3732                 goto badrx;
3733         }
3734         if (len == 0)
3735                 goto badrx;
3736 
3737         fc = get_unaligned((__le16 *)ptr);
3738         hdrlen = header_len(fc);
3739 
3740         skb = dev_alloc_skb( len + hdrlen + 2 );
3741         if ( !skb ) {
3742                 ai->dev->stats.rx_dropped++;
3743                 goto badrx;
3744         }
3745         buffer = (u16*)skb_put (skb, len + hdrlen);
3746         memcpy ((char *)buffer, ptr, hdrlen);
3747         ptr += hdrlen;
3748         if (hdrlen == 24)
3749                 ptr += 6;
3750         gap = get_unaligned_le16(ptr);
3751         ptr += sizeof(__le16);
3752         if (gap) {
3753                 if (gap <= 8)
3754                         ptr += gap;
3755                 else
3756                         airo_print_err(ai->dev->name,
3757                             "gaplen too big. Problems will follow...");
3758         }
3759         memcpy ((char *)buffer + hdrlen, ptr, len);
3760         ptr += len;
3761 #ifdef IW_WIRELESS_SPY    /* defined in iw_handler.h */
3762         if (ai->spy_data.spy_number > 0) {
3763                 char *sa;
3764                 struct iw_quality wstats;
3765                 /* Prepare spy data : addr + qual */
3766                 sa = (char*)buffer + 10;
3767                 wstats.qual = hdr.rssi[0];
3768                 if (ai->rssi)
3769                         wstats.level = 0x100 - ai->rssi[hdr.rssi[1]].rssidBm;
3770                 else
3771                         wstats.level = (hdr.rssi[1] + 321) / 2;
3772                 wstats.noise = ai->wstats.qual.noise;
3773                 wstats.updated = IW_QUAL_QUAL_UPDATED
3774                         | IW_QUAL_LEVEL_UPDATED
3775                         | IW_QUAL_DBM;
3776                 /* Update spy records */
3777                 wireless_spy_update(ai->dev, sa, &wstats);
3778         }
3779 #endif /* IW_WIRELESS_SPY */
3780         skb_reset_mac_header(skb);
3781         skb->pkt_type = PACKET_OTHERHOST;
3782         skb->dev = ai->wifidev;
3783         skb->protocol = htons(ETH_P_802_2);
3784         skb->ip_summed = CHECKSUM_NONE;
3785         netif_rx( skb );
3786 
3787 badrx:
3788         if (rxd.valid == 0) {
3789                 rxd.valid = 1;
3790                 rxd.rdy = 0;
3791                 rxd.len = PKTSIZE;
3792                 memcpy_toio(ai->rxfids[0].card_ram_off, &rxd, sizeof(rxd));
3793         }
3794 }
3795 
3796 static inline void set_auth_type(struct airo_info *local, int auth_type)
3797 {
3798         local->config.authType = auth_type;
3799         /* Cache the last auth type used (of AUTH_OPEN and AUTH_ENCRYPT).
3800          * Used by airo_set_auth()
3801          */
3802         if (auth_type == AUTH_OPEN || auth_type == AUTH_ENCRYPT)
3803                 local->last_auth = auth_type;
3804 }
3805 
3806 static u16 setup_card(struct airo_info *ai, u8 *mac, int lock)
3807 {
3808         Cmd cmd;
3809         Resp rsp;
3810         int status;
3811         SsidRid mySsid;
3812         __le16 lastindex;
3813         WepKeyRid wkr;
3814         int rc;
3815 
3816         memset( &mySsid, 0, sizeof( mySsid ) );
3817         kfree (ai->flash);
3818         ai->flash = NULL;
3819 
3820         /* The NOP is the first step in getting the card going */
3821         cmd.cmd = NOP;
3822         cmd.parm0 = cmd.parm1 = cmd.parm2 = 0;
3823         if (lock && down_interruptible(&ai->sem))
3824                 return ERROR;
3825         if ( issuecommand( ai, &cmd, &rsp ) != SUCCESS ) {
3826                 if (lock)
3827                         up(&ai->sem);
3828                 return ERROR;
3829         }
3830         disable_MAC( ai, 0);
3831 
3832         // Let's figure out if we need to use the AUX port
3833         if (!test_bit(FLAG_MPI,&ai->flags)) {
3834                 cmd.cmd = CMD_ENABLEAUX;
3835                 if (issuecommand(ai, &cmd, &rsp) != SUCCESS) {
3836                         if (lock)
3837                                 up(&ai->sem);
3838                         airo_print_err(ai->dev->name, "Error checking for AUX port");
3839                         return ERROR;
3840                 }
3841                 if (!aux_bap || rsp.status & 0xff00) {
3842                         ai->bap_read = fast_bap_read;
3843                         airo_print_dbg(ai->dev->name, "Doing fast bap_reads");
3844                 } else {
3845                         ai->bap_read = aux_bap_read;
3846                         airo_print_dbg(ai->dev->name, "Doing AUX bap_reads");
3847                 }
3848         }
3849         if (lock)
3850                 up(&ai->sem);
3851         if (ai->config.len == 0) {
3852                 int i;
3853                 tdsRssiRid rssi_rid;
3854                 CapabilityRid cap_rid;
3855 
3856                 kfree(ai->SSID);
3857                 ai->SSID = NULL;
3858                 // general configuration (read/modify/write)
3859                 status = readConfigRid(ai, lock);
3860                 if ( status != SUCCESS ) return ERROR;
3861 
3862                 status = readCapabilityRid(ai, &cap_rid, lock);
3863                 if ( status != SUCCESS ) return ERROR;
3864 
3865                 status = PC4500_readrid(ai,RID_RSSI,&rssi_rid,sizeof(rssi_rid),lock);
3866                 if ( status == SUCCESS ) {
3867                         if (ai->rssi || (ai->rssi = kmalloc(512, GFP_KERNEL)) != NULL)
3868                                 memcpy(ai->rssi, (u8*)&rssi_rid + 2, 512); /* Skip RID length member */
3869                 }
3870                 else {
3871                         kfree(ai->rssi);
3872                         ai->rssi = NULL;
3873                         if (cap_rid.softCap & cpu_to_le16(8))
3874                                 ai->config.rmode |= RXMODE_NORMALIZED_RSSI;
3875                         else
3876                                 airo_print_warn(ai->dev->name, "unknown received signal "
3877                                                 "level scale");
3878                 }
3879                 ai->config.opmode = adhoc ? MODE_STA_IBSS : MODE_STA_ESS;
3880                 set_auth_type(ai, AUTH_OPEN);
3881                 ai->config.modulation = MOD_CCK;
3882 
3883                 if (le16_to_cpu(cap_rid.len) >= sizeof(cap_rid) &&
3884                     (cap_rid.extSoftCap & cpu_to_le16(1)) &&
3885                     micsetup(ai) == SUCCESS) {
3886                         ai->config.opmode |= MODE_MIC;
3887                         set_bit(FLAG_MIC_CAPABLE, &ai->flags);
3888                 }
3889 
3890                 /* Save off the MAC */
3891                 for( i = 0; i < ETH_ALEN; i++ ) {
3892                         mac[i] = ai->config.macAddr[i];
3893                 }
3894 
3895                 /* Check to see if there are any insmod configured
3896                    rates to add */
3897                 if ( rates[0] ) {
3898                         memset(ai->config.rates,0,sizeof(ai->config.rates));
3899                         for( i = 0; i < 8 && rates[i]; i++ ) {
3900                                 ai->config.rates[i] = rates[i];
3901                         }
3902                 }
3903                 set_bit (FLAG_COMMIT, &ai->flags);
3904         }
3905 
3906         /* Setup the SSIDs if present */
3907         if ( ssids[0] ) {
3908                 int i;
3909                 for( i = 0; i < 3 && ssids[i]; i++ ) {
3910                         size_t len = strlen(ssids[i]);
3911                         if (len > 32)
3912                                 len = 32;
3913                         mySsid.ssids[i].len = cpu_to_le16(len);
3914                         memcpy(mySsid.ssids[i].ssid, ssids[i], len);
3915                 }
3916                 mySsid.len = cpu_to_le16(sizeof(mySsid));
3917         }
3918 
3919         status = writeConfigRid(ai, lock);
3920         if ( status != SUCCESS ) return ERROR;
3921 
3922         /* Set up the SSID list */
3923         if ( ssids[0] ) {
3924                 status = writeSsidRid(ai, &mySsid, lock);
3925                 if ( status != SUCCESS ) return ERROR;
3926         }
3927 
3928         status = enable_MAC(ai, lock);
3929         if (status != SUCCESS)
3930                 return ERROR;
3931 
3932         /* Grab the initial wep key, we gotta save it for auto_wep */
3933         rc = readWepKeyRid(ai, &wkr, 1, lock);
3934         if (rc == SUCCESS) do {
3935                 lastindex = wkr.kindex;
3936                 if (wkr.kindex == cpu_to_le16(0xffff)) {
3937                         ai->defindex = wkr.mac[0];
3938                 }
3939                 rc = readWepKeyRid(ai, &wkr, 0, lock);
3940         } while(lastindex != wkr.kindex);
3941 
3942         try_auto_wep(ai);
3943 
3944         return SUCCESS;
3945 }
3946 
3947 static u16 issuecommand(struct airo_info *ai, Cmd *pCmd, Resp *pRsp) {
3948         // Im really paranoid about letting it run forever!
3949         int max_tries = 600000;
3950 
3951         if (IN4500(ai, EVSTAT) & EV_CMD)
3952                 OUT4500(ai, EVACK, EV_CMD);
3953 
3954         OUT4500(ai, PARAM0, pCmd->parm0);
3955         OUT4500(ai, PARAM1, pCmd->parm1);
3956         OUT4500(ai, PARAM2, pCmd->parm2);
3957         OUT4500(ai, COMMAND, pCmd->cmd);
3958 
3959         while (max_tries-- && (IN4500(ai, EVSTAT) & EV_CMD) == 0) {
3960                 if ((IN4500(ai, COMMAND)) == pCmd->cmd)
3961                         // PC4500 didn't notice command, try again
3962                         OUT4500(ai, COMMAND, pCmd->cmd);
3963                 if (!in_atomic() && (max_tries & 255) == 0)
3964                         schedule();
3965         }
3966 
3967         if ( max_tries == -1 ) {
3968                 airo_print_err(ai->dev->name,
3969                         "Max tries exceeded when issuing command");
3970                 if (IN4500(ai, COMMAND) & COMMAND_BUSY)
3971                         OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
3972                 return ERROR;
3973         }
3974 
3975         // command completed
3976         pRsp->status = IN4500(ai, STATUS);
3977         pRsp->rsp0 = IN4500(ai, RESP0);
3978         pRsp->rsp1 = IN4500(ai, RESP1);
3979         pRsp->rsp2 = IN4500(ai, RESP2);
3980         if ((pRsp->status & 0xff00)!=0 && pCmd->cmd != CMD_SOFTRESET)
3981                 airo_print_err(ai->dev->name,
3982                         "cmd:%x status:%x rsp0:%x rsp1:%x rsp2:%x",
3983                         pCmd->cmd, pRsp->status, pRsp->rsp0, pRsp->rsp1,
3984                         pRsp->rsp2);
3985 
3986         // clear stuck command busy if necessary
3987         if (IN4500(ai, COMMAND) & COMMAND_BUSY) {
3988                 OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
3989         }
3990         // acknowledge processing the status/response
3991         OUT4500(ai, EVACK, EV_CMD);
3992 
3993         return SUCCESS;
3994 }
3995 
3996 /* Sets up the bap to start exchange data.  whichbap should
3997  * be one of the BAP0 or BAP1 defines.  Locks should be held before
3998  * calling! */
3999 static int bap_setup(struct airo_info *ai, u16 rid, u16 offset, int whichbap )
4000 {
4001         int timeout = 50;
4002         int max_tries = 3;
4003 
4004         OUT4500(ai, SELECT0+whichbap, rid);
4005         OUT4500(ai, OFFSET0+whichbap, offset);
4006         while (1) {
4007                 int status = IN4500(ai, OFFSET0+whichbap);
4008                 if (status & BAP_BUSY) {
4009                         /* This isn't really a timeout, but its kinda
4010                            close */
4011                         if (timeout--) {
4012                                 continue;
4013                         }
4014                 } else if ( status & BAP_ERR ) {
4015                         /* invalid rid or offset */
4016                         airo_print_err(ai->dev->name, "BAP error %x %d",
4017                                 status, whichbap );
4018                         return ERROR;
4019                 } else if (status & BAP_DONE) { // success
4020                         return SUCCESS;
4021                 }
4022                 if ( !(max_tries--) ) {
4023                         airo_print_err(ai->dev->name,
4024                                 "BAP setup error too many retries\n");
4025                         return ERROR;
4026                 }
4027                 // -- PC4500 missed it, try again
4028                 OUT4500(ai, SELECT0+whichbap, rid);
4029                 OUT4500(ai, OFFSET0+whichbap, offset);
4030                 timeout = 50;
4031         }
4032 }
4033 
4034 /* should only be called by aux_bap_read.  This aux function and the
4035    following use concepts not documented in the developers guide.  I
4036    got them from a patch given to my by Aironet */
4037 static u16 aux_setup(struct airo_info *ai, u16 page,
4038                      u16 offset, u16 *len)
4039 {
4040         u16 next;
4041 
4042         OUT4500(ai, AUXPAGE, page);
4043         OUT4500(ai, AUXOFF, 0);
4044         next = IN4500(ai, AUXDATA);
4045         *len = IN4500(ai, AUXDATA)&0xff;
4046         if (offset != 4) OUT4500(ai, AUXOFF, offset);
4047         return next;
4048 }
4049 
4050 /* requires call to bap_setup() first */
4051 static int aux_bap_read(struct airo_info *ai, __le16 *pu16Dst,
4052                         int bytelen, int whichbap)
4053 {
4054         u16 len;
4055         u16 page;
4056         u16 offset;
4057         u16 next;
4058         int words;
4059         int i;
4060         unsigned long flags;
4061 
4062         spin_lock_irqsave(&ai->aux_lock, flags);
4063         page = IN4500(ai, SWS0+whichbap);
4064         offset = IN4500(ai, SWS2+whichbap);
4065         next = aux_setup(ai, page, offset, &len);
4066         words = (bytelen+1)>>1;
4067 
4068         for (i=0; i<words;) {
4069                 int count;
4070                 count = (len>>1) < (words-i) ? (len>>1) : (words-i);
4071                 if ( !do8bitIO )
4072                         insw( ai->dev->base_addr+DATA0+whichbap,
4073                               pu16Dst+i,count );
4074                 else
4075                         insb( ai->dev->base_addr+DATA0+whichbap,
4076                               pu16Dst+i, count << 1 );
4077                 i += count;
4078                 if (i<words) {
4079                         next = aux_setup(ai, next, 4, &len);
4080                 }
4081         }
4082         spin_unlock_irqrestore(&ai->aux_lock, flags);
4083         return SUCCESS;
4084 }
4085 
4086 
4087 /* requires call to bap_setup() first */
4088 static int fast_bap_read(struct airo_info *ai, __le16 *pu16Dst,
4089                          int bytelen, int whichbap)
4090 {
4091         bytelen = (bytelen + 1) & (~1); // round up to even value
4092         if ( !do8bitIO )
4093                 insw( ai->dev->base_addr+DATA0+whichbap, pu16Dst, bytelen>>1 );
4094         else
4095                 insb( ai->dev->base_addr+DATA0+whichbap, pu16Dst, bytelen );
4096         return SUCCESS;
4097 }
4098 
4099 /* requires call to bap_setup() first */
4100 static int bap_write(struct airo_info *ai, const __le16 *pu16Src,
4101                      int bytelen, int whichbap)
4102 {
4103         bytelen = (bytelen + 1) & (~1); // round up to even value
4104         if ( !do8bitIO )
4105                 outsw( ai->dev->base_addr+DATA0+whichbap,
4106                        pu16Src, bytelen>>1 );
4107         else
4108                 outsb( ai->dev->base_addr+DATA0+whichbap, pu16Src, bytelen );
4109         return SUCCESS;
4110 }
4111 
4112 static int PC4500_accessrid(struct airo_info *ai, u16 rid, u16 accmd)
4113 {
4114         Cmd cmd; /* for issuing commands */
4115         Resp rsp; /* response from commands */
4116         u16 status;
4117 
4118         memset(&cmd, 0, sizeof(cmd));
4119         cmd.cmd = accmd;
4120         cmd.parm0 = rid;
4121         status = issuecommand(ai, &cmd, &rsp);
4122         if (status != 0) return status;
4123         if ( (rsp.status & 0x7F00) != 0) {
4124                 return (accmd << 8) + (rsp.rsp0 & 0xFF);
4125         }
4126         return 0;
4127 }
4128 
4129 /*  Note, that we are using BAP1 which is also used by transmit, so
4130  *  we must get a lock. */
4131 static int PC4500_readrid(struct airo_info *ai, u16 rid, void *pBuf, int len, int lock)
4132 {
4133         u16 status;
4134         int rc = SUCCESS;
4135 
4136         if (lock) {
4137                 if (down_interruptible(&ai->sem))
4138                         return ERROR;
4139         }
4140         if (test_bit(FLAG_MPI,&ai->flags)) {
4141                 Cmd cmd;
4142                 Resp rsp;
4143 
4144                 memset(&cmd, 0, sizeof(cmd));
4145                 memset(&rsp, 0, sizeof(rsp));
4146                 ai->config_desc.rid_desc.valid = 1;
4147                 ai->config_desc.rid_desc.len = RIDSIZE;
4148                 ai->config_desc.rid_desc.rid = 0;
4149                 ai->config_desc.rid_desc.host_addr = ai->ridbus;
4150 
4151                 cmd.cmd = CMD_ACCESS;
4152                 cmd.parm0 = rid;
4153 
4154                 memcpy_toio(ai->config_desc.card_ram_off,
4155                         &ai->config_desc.rid_desc, sizeof(Rid));
4156 
4157                 rc = issuecommand(ai, &cmd, &rsp);
4158 
4159                 if (rsp.status & 0x7f00)
4160                         rc = rsp.rsp0;
4161                 if (!rc)
4162                         memcpy(pBuf, ai->config_desc.virtual_host_addr, len);
4163                 goto done;
4164         } else {
4165                 if ((status = PC4500_accessrid(ai, rid, CMD_ACCESS))!=SUCCESS) {
4166                         rc = status;
4167                         goto done;
4168                 }
4169                 if (bap_setup(ai, rid, 0, BAP1) != SUCCESS) {
4170                         rc = ERROR;
4171                         goto done;
4172                 }
4173                 // read the rid length field
4174                 bap_read(ai, pBuf, 2, BAP1);
4175                 // length for remaining part of rid
4176                 len = min(len, (int)le16_to_cpu(*(__le16*)pBuf)) - 2;
4177 
4178                 if ( len <= 2 ) {
4179                         airo_print_err(ai->dev->name,
4180                                 "Rid %x has a length of %d which is too short",
4181                                 (int)rid, (int)len );
4182                         rc = ERROR;
4183                         goto done;
4184                 }
4185                 // read remainder of the rid
4186                 rc = bap_read(ai, ((__le16*)pBuf)+1, len, BAP1);
4187         }
4188 done:
4189         if (lock)
4190                 up(&ai->sem);
4191         return rc;
4192 }
4193 
4194 /*  Note, that we are using BAP1 which is also used by transmit, so
4195  *  make sure this isn't called when a transmit is happening */
4196 static int PC4500_writerid(struct airo_info *ai, u16 rid,
4197                            const void *pBuf, int len, int lock)
4198 {
4199         u16 status;
4200         int rc = SUCCESS;
4201 
4202         *(__le16*)pBuf = cpu_to_le16((u16)len);
4203 
4204         if (lock) {
4205                 if (down_interruptible(&ai->sem))
4206                         return ERROR;
4207         }
4208         if (test_bit(FLAG_MPI,&ai->flags)) {
4209                 Cmd cmd;
4210                 Resp rsp;
4211 
4212                 if (test_bit(FLAG_ENABLED, &ai->flags) && (RID_WEP_TEMP != rid))
4213                         airo_print_err(ai->dev->name,
4214                                 "%s: MAC should be disabled (rid=%04x)",
4215                                 __func__, rid);
4216                 memset(&cmd, 0, sizeof(cmd));
4217                 memset(&rsp, 0, sizeof(rsp));
4218 
4219                 ai->config_desc.rid_desc.valid = 1;
4220                 ai->config_desc.rid_desc.len = *((u16 *)pBuf);
4221                 ai->config_desc.rid_desc.rid = 0;
4222 
4223                 cmd.cmd = CMD_WRITERID;
4224                 cmd.parm0 = rid;
4225 
4226                 memcpy_toio(ai->config_desc.card_ram_off,
4227                         &ai->config_desc.rid_desc, sizeof(Rid));
4228 
4229                 if (len < 4 || len > 2047) {
4230                         airo_print_err(ai->dev->name, "%s: len=%d", __func__, len);
4231                         rc = -1;
4232                 } else {
4233                         memcpy(ai->config_desc.virtual_host_addr,
4234                                 pBuf, len);
4235 
4236                         rc = issuecommand(ai, &cmd, &rsp);
4237                         if ((rc & 0xff00) != 0) {
4238                                 airo_print_err(ai->dev->name, "%s: Write rid Error %d",
4239                                                 __func__, rc);
4240                                 airo_print_err(ai->dev->name, "%s: Cmd=%04x",
4241                                                 __func__, cmd.cmd);
4242                         }
4243 
4244                         if ((rsp.status & 0x7f00))
4245                                 rc = rsp.rsp0;
4246                 }
4247         } else {
4248                 // --- first access so that we can write the rid data
4249                 if ( (status = PC4500_accessrid(ai, rid, CMD_ACCESS)) != 0) {
4250                         rc = status;
4251                         goto done;
4252                 }
4253                 // --- now write the rid data
4254                 if (bap_setup(ai, rid, 0, BAP1) != SUCCESS) {
4255                         rc = ERROR;
4256                         goto done;
4257                 }
4258                 bap_write(ai, pBuf, len, BAP1);
4259                 // ---now commit the rid data
4260                 rc = PC4500_accessrid(ai, rid, 0x100|CMD_ACCESS);
4261         }
4262 done:
4263         if (lock)
4264                 up(&ai->sem);
4265         return rc;
4266 }
4267 
4268 /* Allocates a FID to be used for transmitting packets.  We only use
4269    one for now. */
4270 static u16 transmit_allocate(struct airo_info *ai, int lenPayload, int raw)
4271 {
4272         unsigned int loop = 3000;
4273         Cmd cmd;
4274         Resp rsp;
4275         u16 txFid;
4276         __le16 txControl;
4277 
4278         cmd.cmd = CMD_ALLOCATETX;
4279         cmd.parm0 = lenPayload;
4280         if (down_interruptible(&ai->sem))
4281                 return ERROR;
4282         if (issuecommand(ai, &cmd, &rsp) != SUCCESS) {
4283                 txFid = ERROR;
4284                 goto done;
4285         }
4286         if ( (rsp.status & 0xFF00) != 0) {
4287                 txFid = ERROR;
4288                 goto done;
4289         }
4290         /* wait for the allocate event/indication
4291          * It makes me kind of nervous that this can just sit here and spin,
4292          * but in practice it only loops like four times. */
4293         while (((IN4500(ai, EVSTAT) & EV_ALLOC) == 0) && --loop);
4294         if (!loop) {
4295                 txFid = ERROR;
4296                 goto done;
4297         }
4298 
4299         // get the allocated fid and acknowledge
4300         txFid = IN4500(ai, TXALLOCFID);
4301         OUT4500(ai, EVACK, EV_ALLOC);
4302 
4303         /*  The CARD is pretty cool since it converts the ethernet packet
4304          *  into 802.11.  Also note that we don't release the FID since we
4305          *  will be using the same one over and over again. */
4306         /*  We only have to setup the control once since we are not
4307          *  releasing the fid. */
4308         if (raw)
4309                 txControl = cpu_to_le16(TXCTL_TXOK | TXCTL_TXEX | TXCTL_802_11
4310                         | TXCTL_ETHERNET | TXCTL_NORELEASE);
4311         else
4312                 txControl = cpu_to_le16(TXCTL_TXOK | TXCTL_TXEX | TXCTL_802_3
4313                         | TXCTL_ETHERNET | TXCTL_NORELEASE);
4314         if (bap_setup(ai, txFid, 0x0008, BAP1) != SUCCESS)
4315                 txFid = ERROR;
4316         else
4317                 bap_write(ai, &txControl, sizeof(txControl), BAP1);
4318 
4319 done:
4320         up(&ai->sem);
4321 
4322         return txFid;
4323 }
4324 
4325 /* In general BAP1 is dedicated to transmiting packets.  However,
4326    since we need a BAP when accessing RIDs, we also use BAP1 for that.
4327    Make sure the BAP1 spinlock is held when this is called. */
4328 static int transmit_802_3_packet(struct airo_info *ai, int len, char *pPacket)
4329 {
4330         __le16 payloadLen;
4331         Cmd cmd;
4332         Resp rsp;
4333         int miclen = 0;
4334         u16 txFid = len;
4335         MICBuffer pMic;
4336 
4337         len >>= 16;
4338 
4339         if (len <= ETH_ALEN * 2) {
4340                 airo_print_warn(ai->dev->name, "Short packet %d", len);
4341                 return ERROR;
4342         }
4343         len -= ETH_ALEN * 2;
4344 
4345         if (test_bit(FLAG_MIC_CAPABLE, &ai->flags) && ai->micstats.enabled && 
4346             (ntohs(((__be16 *)pPacket)[6]) != 0x888E)) {
4347                 if (encapsulate(ai,(etherHead *)pPacket,&pMic,len) != SUCCESS)
4348                         return ERROR;
4349                 miclen = sizeof(pMic);
4350         }
4351         // packet is destination[6], source[6], payload[len-12]
4352         // write the payload length and dst/src/payload
4353         if (bap_setup(ai, txFid, 0x0036, BAP1) != SUCCESS) return ERROR;
4354         /* The hardware addresses aren't counted as part of the payload, so
4355          * we have to subtract the 12 bytes for the addresses off */
4356         payloadLen = cpu_to_le16(len + miclen);
4357         bap_write(ai, &payloadLen, sizeof(payloadLen),BAP1);
4358         bap_write(ai, (__le16*)pPacket, sizeof(etherHead), BAP1);
4359         if (miclen)
4360                 bap_write(ai, (__le16*)&pMic, miclen, BAP1);
4361         bap_write(ai, (__le16*)(pPacket + sizeof(etherHead)), len, BAP1);
4362         // issue the transmit command
4363         memset( &cmd, 0, sizeof( cmd ) );
4364         cmd.cmd = CMD_TRANSMIT;
4365         cmd.parm0 = txFid;
4366         if (issuecommand(ai, &cmd, &rsp) != SUCCESS) return ERROR;
4367         if ( (rsp.status & 0xFF00) != 0) return ERROR;
4368         return SUCCESS;
4369 }
4370 
4371 static int transmit_802_11_packet(struct airo_info *ai, int len, char *pPacket)
4372 {
4373         __le16 fc, payloadLen;
4374         Cmd cmd;
4375         Resp rsp;
4376         int hdrlen;
4377         static u8 tail[(30-10) + 2 + 6] = {[30-10] = 6};
4378         /* padding of header to full size + le16 gaplen (6) + gaplen bytes */
4379         u16 txFid = len;
4380         len >>= 16;
4381 
4382         fc = *(__le16*)pPacket;
4383         hdrlen = header_len(fc);
4384 
4385         if (len < hdrlen) {
4386                 airo_print_warn(ai->dev->name, "Short packet %d", len);
4387                 return ERROR;
4388         }
4389 
4390         /* packet is 802.11 header +  payload
4391          * write the payload length and dst/src/payload */
4392         if (bap_setup(ai, txFid, 6, BAP1) != SUCCESS) return ERROR;
4393         /* The 802.11 header aren't counted as part of the payload, so
4394          * we have to subtract the header bytes off */
4395         payloadLen = cpu_to_le16(len-hdrlen);
4396         bap_write(ai, &payloadLen, sizeof(payloadLen),BAP1);
4397         if (bap_setup(ai, txFid, 0x0014, BAP1) != SUCCESS) return ERROR;
4398         bap_write(ai, (__le16 *)pPacket, hdrlen, BAP1);
4399         bap_write(ai, (__le16 *)(tail + (hdrlen - 10)), 38 - hdrlen, BAP1);
4400 
4401         bap_write(ai, (__le16 *)(pPacket + hdrlen), len - hdrlen, BAP1);
4402         // issue the transmit command
4403         memset( &cmd, 0, sizeof( cmd ) );
4404         cmd.cmd = CMD_TRANSMIT;
4405         cmd.parm0 = txFid;
4406         if (issuecommand(ai, &cmd, &rsp) != SUCCESS) return ERROR;
4407         if ( (rsp.status & 0xFF00) != 0) return ERROR;
4408         return SUCCESS;
4409 }
4410 
4411 /*
4412  *  This is the proc_fs routines.  It is a bit messier than I would
4413  *  like!  Feel free to clean it up!
4414  */
4415 
4416 static ssize_t proc_read( struct file *file,
4417                           char __user *buffer,
4418                           size_t len,
4419                           loff_t *offset);
4420 
4421 static ssize_t proc_write( struct file *file,
4422                            const char __user *buffer,
4423                            size_t len,
4424                            loff_t *offset );
4425 static int proc_close( struct inode *inode, struct file *file );
4426 
4427 static int proc_stats_open( struct inode *inode, struct file *file );
4428 static int proc_statsdelta_open( struct inode *inode, struct file *file );
4429 static int proc_status_open( struct inode *inode, struct file *file );
4430 static int proc_SSID_open( struct inode *inode, struct file *file );
4431 static int proc_APList_open( struct inode *inode, struct file *file );
4432 static int proc_BSSList_open( struct inode *inode, struct file *file );
4433 static int proc_config_open( struct inode *inode, struct file *file );
4434 static int proc_wepkey_open( struct inode *inode, struct file *file );
4435 
4436 static const struct file_operations proc_statsdelta_ops = {
4437         .owner          = THIS_MODULE,
4438         .read           = proc_read,
4439         .open           = proc_statsdelta_open,
4440         .release        = proc_close,
4441         .llseek         = default_llseek,
4442 };
4443 
4444 static const struct file_operations proc_stats_ops = {
4445         .owner          = THIS_MODULE,
4446         .read           = proc_read,
4447         .open           = proc_stats_open,
4448         .release        = proc_close,
4449         .llseek         = default_llseek,
4450 };
4451 
4452 static const struct file_operations proc_status_ops = {
4453         .owner          = THIS_MODULE,
4454         .read           = proc_read,
4455         .open           = proc_status_open,
4456         .release        = proc_close,
4457         .llseek         = default_llseek,
4458 };
4459 
4460 static const struct file_operations proc_SSID_ops = {
4461         .owner          = THIS_MODULE,
4462         .read           = proc_read,
4463         .write          = proc_write,
4464         .open           = proc_SSID_open,
4465         .release        = proc_close,
4466         .llseek         = default_llseek,
4467 };
4468 
4469 static const struct file_operations proc_BSSList_ops = {
4470         .owner          = THIS_MODULE,
4471         .read           = proc_read,
4472         .write          = proc_write,
4473         .open           = proc_BSSList_open,
4474         .release        = proc_close,
4475         .llseek         = default_llseek,
4476 };
4477 
4478 static const struct file_operations proc_APList_ops = {
4479         .owner          = THIS_MODULE,
4480         .read           = proc_read,
4481         .write          = proc_write,
4482         .open           = proc_APList_open,
4483         .release        = proc_close,
4484         .llseek         = default_llseek,
4485 };
4486 
4487 static const struct file_operations proc_config_ops = {
4488         .owner          = THIS_MODULE,
4489         .read           = proc_read,
4490         .write          = proc_write,
4491         .open           = proc_config_open,
4492         .release        = proc_close,
4493         .llseek         = default_llseek,
4494 };
4495 
4496 static const struct file_operations proc_wepkey_ops = {
4497         .owner          = THIS_MODULE,
4498         .read           = proc_read,
4499         .write          = proc_write,
4500         .open           = proc_wepkey_open,
4501         .release        = proc_close,
4502         .llseek         = default_llseek,
4503 };
4504 
4505 static struct proc_dir_entry *airo_entry;
4506 
4507 struct proc_data {
4508         int release_buffer;
4509         int readlen;
4510         char *rbuffer;
4511         int writelen;
4512         int maxwritelen;
4513         char *wbuffer;
4514         void (*on_close) (struct inode *, struct file *);
4515 };
4516 
4517 static int setup_proc_entry( struct net_device *dev,
4518                              struct airo_info *apriv ) {
4519         struct proc_dir_entry *entry;
4520 
4521         /* First setup the device directory */
4522         strcpy(apriv->proc_name,dev->name);
4523         apriv->proc_entry = proc_mkdir_mode(apriv->proc_name, airo_perm,
4524                                             airo_entry);
4525         if (!apriv->proc_entry)
4526                 return -ENOMEM;
4527         proc_set_user(apriv->proc_entry, proc_kuid, proc_kgid);
4528 
4529         /* Setup the StatsDelta */
4530         entry = proc_create_data("StatsDelta", S_IRUGO & proc_perm,
4531                                  apriv->proc_entry, &proc_statsdelta_ops, dev);
4532         if (!entry)
4533                 goto fail;
4534         proc_set_user(entry, proc_kuid, proc_kgid);
4535 
4536         /* Setup the Stats */
4537         entry = proc_create_data("Stats", S_IRUGO & proc_perm,
4538                                  apriv->proc_entry, &proc_stats_ops, dev);
4539         if (!entry)
4540                 goto fail;
4541         proc_set_user(entry, proc_kuid, proc_kgid);
4542 
4543         /* Setup the Status */
4544         entry = proc_create_data("Status", S_IRUGO & proc_perm,
4545                                  apriv->proc_entry, &proc_status_ops, dev);
4546         if (!entry)
4547                 goto fail;
4548         proc_set_user(entry, proc_kuid, proc_kgid);
4549 
4550         /* Setup the Config */
4551         entry = proc_create_data("Config", proc_perm,
4552                                  apriv->proc_entry, &proc_config_ops, dev);
4553         if (!entry)
4554                 goto fail;
4555         proc_set_user(entry, proc_kuid, proc_kgid);
4556 
4557         /* Setup the SSID */
4558         entry = proc_create_data("SSID", proc_perm,
4559                                  apriv->proc_entry, &proc_SSID_ops, dev);
4560         if (!entry)
4561                 goto fail;
4562         proc_set_user(entry, proc_kuid, proc_kgid);
4563 
4564         /* Setup the APList */
4565         entry = proc_create_data("APList", proc_perm,
4566                                  apriv->proc_entry, &proc_APList_ops, dev);
4567         if (!entry)
4568                 goto fail;
4569         proc_set_user(entry, proc_kuid, proc_kgid);
4570 
4571         /* Setup the BSSList */
4572         entry = proc_create_data("BSSList", proc_perm,
4573                                  apriv->proc_entry, &proc_BSSList_ops, dev);
4574         if (!entry)
4575                 goto fail;
4576         proc_set_user(entry, proc_kuid, proc_kgid);
4577 
4578         /* Setup the WepKey */
4579         entry = proc_create_data("WepKey", proc_perm,
4580                                  apriv->proc_entry, &proc_wepkey_ops, dev);
4581         if (!entry)
4582                 goto fail;
4583         proc_set_user(entry, proc_kuid, proc_kgid);
4584         return 0;
4585 
4586 fail:
4587         remove_proc_subtree(apriv->proc_name, airo_entry);
4588         return -ENOMEM;
4589 }
4590 
4591 static int takedown_proc_entry( struct net_device *dev,
4592                                 struct airo_info *apriv )
4593 {
4594         remove_proc_subtree(apriv->proc_name, airo_entry);
4595         return 0;
4596 }
4597 
4598 /*
4599  *  What we want from the proc_fs is to be able to efficiently read
4600  *  and write the configuration.  To do this, we want to read the
4601  *  configuration when the file is opened and write it when the file is
4602  *  closed.  So basically we allocate a read buffer at open and fill it
4603  *  with data, and allocate a write buffer and read it at close.
4604  */
4605 
4606 /*
4607  *  The read routine is generic, it relies on the preallocated rbuffer
4608  *  to supply the data.
4609  */
4610 static ssize_t proc_read( struct file *file,
4611                           char __user *buffer,
4612                           size_t len,
4613                           loff_t *offset )
4614 {
4615         struct proc_data *priv = file->private_data;
4616 
4617         if (!priv->rbuffer)
4618                 return -EINVAL;
4619 
4620         return simple_read_from_buffer(buffer, len, offset, priv->rbuffer,
4621                                         priv->readlen);
4622 }
4623 
4624 /*
4625  *  The write routine is generic, it fills in a preallocated rbuffer
4626  *  to supply the data.
4627  */
4628 static ssize_t proc_write( struct file *file,
4629                            const char __user *buffer,
4630                            size_t len,
4631                            loff_t *offset )
4632 {
4633         ssize_t ret;
4634         struct proc_data *priv = file->private_data;
4635 
4636         if (!priv->wbuffer)
4637                 return -EINVAL;
4638 
4639         ret = simple_write_to_buffer(priv->wbuffer, priv->maxwritelen, offset,
4640                                         buffer, len);
4641         if (ret > 0)
4642                 priv->writelen = max_t(int, priv->writelen, *offset);
4643 
4644         return ret;
4645 }
4646 
4647 static int proc_status_open(struct inode *inode, struct file *file)
4648 {
4649         struct proc_data *data;
4650         struct net_device *dev = PDE_DATA(inode);
4651         struct airo_info *apriv = dev->ml_priv;
4652         CapabilityRid cap_rid;
4653         StatusRid status_rid;
4654         u16 mode;
4655         int i;
4656 
4657         if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
4658                 return -ENOMEM;
4659         data = file->private_data;
4660         if ((data->rbuffer = kmalloc( 2048, GFP_KERNEL )) == NULL) {
4661                 kfree (file->private_data);
4662                 return -ENOMEM;
4663         }
4664 
4665         readStatusRid(apriv, &status_rid, 1);
4666         readCapabilityRid(apriv, &cap_rid, 1);
4667 
4668         mode = le16_to_cpu(status_rid.mode);
4669 
4670         i = sprintf(data->rbuffer, "Status: %s%s%s%s%s%s%s%s%s\n",
4671                     mode & 1 ? "CFG ": "",
4672                     mode & 2 ? "ACT ": "",
4673                     mode & 0x10 ? "SYN ": "",
4674                     mode & 0x20 ? "LNK ": "",
4675                     mode & 0x40 ? "LEAP ": "",
4676                     mode & 0x80 ? "PRIV ": "",
4677                     mode & 0x100 ? "KEY ": "",
4678                     mode & 0x200 ? "WEP ": "",
4679                     mode & 0x8000 ? "ERR ": "");
4680         sprintf( data->rbuffer+i, "Mode: %x\n"
4681                  "Signal Strength: %d\n"
4682                  "Signal Quality: %d\n"
4683                  "SSID: %-.*s\n"
4684                  "AP: %-.16s\n"
4685                  "Freq: %d\n"
4686                  "BitRate: %dmbs\n"
4687                  "Driver Version: %s\n"
4688                  "Device: %s\nManufacturer: %s\nFirmware Version: %s\n"
4689                  "Radio type: %x\nCountry: %x\nHardware Version: %x\n"
4690                  "Software Version: %x\nSoftware Subversion: %x\n"
4691                  "Boot block version: %x\n",
4692                  le16_to_cpu(status_rid.mode),
4693                  le16_to_cpu(status_rid.normalizedSignalStrength),
4694                  le16_to_cpu(status_rid.signalQuality),
4695                  le16_to_cpu(status_rid.SSIDlen),
4696                  status_rid.SSID,
4697                  status_rid.apName,
4698                  le16_to_cpu(status_rid.channel),
4699                  le16_to_cpu(status_rid.currentXmitRate) / 2,
4700                  version,
4701                  cap_rid.prodName,
4702                  cap_rid.manName,
4703                  cap_rid.prodVer,
4704                  le16_to_cpu(cap_rid.radioType),
4705                  le16_to_cpu(cap_rid.country),
4706                  le16_to_cpu(cap_rid.hardVer),
4707                  le16_to_cpu(cap_rid.softVer),
4708                  le16_to_cpu(cap_rid.softSubVer),
4709                  le16_to_cpu(cap_rid.bootBlockVer));
4710         data->readlen = strlen( data->rbuffer );
4711         return 0;
4712 }
4713 
4714 static int proc_stats_rid_open(struct inode*, struct file*, u16);
4715 static int proc_statsdelta_open( struct inode *inode,
4716                                  struct file *file ) {
4717         if (file->f_mode&FMODE_WRITE) {
4718                 return proc_stats_rid_open(inode, file, RID_STATSDELTACLEAR);
4719         }
4720         return proc_stats_rid_open(inode, file, RID_STATSDELTA);
4721 }
4722 
4723 static int proc_stats_open( struct inode *inode, struct file *file ) {
4724         return proc_stats_rid_open(inode, file, RID_STATS);
4725 }
4726 
4727 static int proc_stats_rid_open( struct inode *inode,
4728                                 struct file *file,
4729                                 u16 rid )
4730 {
4731         struct proc_data *data;
4732         struct net_device *dev = PDE_DATA(inode);
4733         struct airo_info *apriv = dev->ml_priv;
4734         StatsRid stats;
4735         int i, j;
4736         __le32 *vals = stats.vals;
4737         int len;
4738 
4739         if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
4740                 return -ENOMEM;
4741         data = file->private_data;
4742         if ((data->rbuffer = kmalloc( 4096, GFP_KERNEL )) == NULL) {
4743                 kfree (file->private_data);
4744                 return -ENOMEM;
4745         }
4746 
4747         readStatsRid(apriv, &stats, rid, 1);
4748         len = le16_to_cpu(stats.len);
4749 
4750         j = 0;
4751         for(i=0; statsLabels[i]!=(char *)-1 && i*4<len; i++) {
4752                 if (!statsLabels[i]) continue;
4753                 if (j+strlen(statsLabels[i])+16>4096) {
4754                         airo_print_warn(apriv->dev->name,
4755                                "Potentially disastrous buffer overflow averted!");
4756                         break;
4757                 }
4758                 j+=sprintf(data->rbuffer+j, "%s: %u\n", statsLabels[i],
4759                                 le32_to_cpu(vals[i]));
4760         }
4761         if (i*4 >= len) {
4762                 airo_print_warn(apriv->dev->name, "Got a short rid");
4763         }
4764         data->readlen = j;
4765         return 0;
4766 }
4767 
4768 static int get_dec_u16( char *buffer, int *start, int limit ) {
4769         u16 value;
4770         int valid = 0;
4771         for (value = 0; *start < limit && buffer[*start] >= '' &&
4772                         buffer[*start] <= '9'; (*start)++) {
4773                 valid = 1;
4774                 value *= 10;
4775                 value += buffer[*start] - '';
4776         }
4777         if ( !valid ) return -1;
4778         return value;
4779 }
4780 
4781 static int airo_config_commit(struct net_device *dev,
4782                               struct iw_request_info *info, void *zwrq,
4783                               char *extra);
4784 
4785 static inline int sniffing_mode(struct airo_info *ai)
4786 {
4787         return (le16_to_cpu(ai->config.rmode) & le16_to_cpu(RXMODE_MASK)) >=
4788                 le16_to_cpu(RXMODE_RFMON);
4789 }
4790 
4791 static void proc_config_on_close(struct inode *inode, struct file *file)
4792 {
4793         struct proc_data *data = file->private_data;
4794         struct net_device *dev = PDE_DATA(inode);
4795         struct airo_info *ai = dev->ml_priv;
4796         char *line;
4797 
4798         if ( !data->writelen ) return;
4799 
4800         readConfigRid(ai, 1);
4801         set_bit (FLAG_COMMIT, &ai->flags);
4802 
4803         line = data->wbuffer;
4804         while( line[0] ) {
4805 /*** Mode processing */
4806                 if ( !strncmp( line, "Mode: ", 6 ) ) {
4807                         line += 6;
4808                         if (sniffing_mode(ai))
4809                                 set_bit (FLAG_RESET, &ai->flags);
4810                         ai->config.rmode &= ~RXMODE_FULL_MASK;
4811                         clear_bit (FLAG_802_11, &ai->flags);
4812                         ai->config.opmode &= ~MODE_CFG_MASK;
4813                         ai->config.scanMode = SCANMODE_ACTIVE;
4814                         if ( line[0] == 'a' ) {
4815                                 ai->config.opmode |= MODE_STA_IBSS;
4816                         } else {
4817                                 ai->config.opmode |= MODE_STA_ESS;
4818                                 if ( line[0] == 'r' ) {
4819                                         ai->config.rmode |= RXMODE_RFMON | RXMODE_DISABLE_802_3_HEADER;
4820                                         ai->config.scanMode = SCANMODE_PASSIVE;
4821                                         set_bit (FLAG_802_11, &ai->flags);
4822                                 } else if ( line[0] == 'y' ) {
4823                                         ai->config.rmode |= RXMODE_RFMON_ANYBSS | RXMODE_DISABLE_802_3_HEADER;
4824                                         ai->config.scanMode = SCANMODE_PASSIVE;
4825                                         set_bit (FLAG_802_11, &ai->flags);
4826                                 } else if ( line[0] == 'l' )
4827                                         ai->config.rmode |= RXMODE_LANMON;
4828                         }
4829                         set_bit (FLAG_COMMIT, &ai->flags);
4830                 }
4831 
4832 /*** Radio status */
4833                 else if (!strncmp(line,"Radio: ", 7)) {
4834                         line += 7;
4835                         if (!strncmp(line,"off",3)) {
4836                                 set_bit (FLAG_RADIO_OFF, &ai->flags);
4837                         } else {
4838                                 clear_bit (FLAG_RADIO_OFF, &ai->flags);
4839                         }
4840                 }
4841 /*** NodeName processing */
4842                 else if ( !strncmp( line, "NodeName: ", 10 ) ) {
4843                         int j;
4844 
4845                         line += 10;
4846                         memset( ai->config.nodeName, 0, 16 );
4847 /* Do the name, assume a space between the mode and node name */
4848                         for( j = 0; j < 16 && line[j] != '\n'; j++ ) {
4849                                 ai->config.nodeName[j] = line[j];
4850                         }
4851                         set_bit (FLAG_COMMIT, &ai->flags);
4852                 }
4853 
4854 /*** PowerMode processing */
4855                 else if ( !strncmp( line, "PowerMode: ", 11 ) ) {
4856                         line += 11;
4857                         if ( !strncmp( line, "PSPCAM", 6 ) ) {
4858                                 ai->config.powerSaveMode = POWERSAVE_PSPCAM;
4859                                 set_bit (FLAG_COMMIT, &ai->flags);
4860                         } else if ( !strncmp( line, "PSP", 3 ) ) {
4861                                 ai->config.powerSaveMode = POWERSAVE_PSP;
4862                                 set_bit (FLAG_COMMIT, &ai->flags);
4863                         } else {
4864                                 ai->config.powerSaveMode = POWERSAVE_CAM;
4865                                 set_bit (FLAG_COMMIT, &ai->flags);
4866                         }
4867                 } else if ( !strncmp( line, "DataRates: ", 11 ) ) {
4868                         int v, i = 0, k = 0; /* i is index into line,
4869                                                 k is index to rates */
4870 
4871                         line += 11;
4872                         while((v = get_dec_u16(line, &i, 3))!=-1) {
4873                                 ai->config.rates[k++] = (u8)v;
4874                                 line += i + 1;
4875                                 i = 0;
4876                         }
4877                         set_bit (FLAG_COMMIT, &ai->flags);
4878                 } else if ( !strncmp( line, "Channel: ", 9 ) ) {
4879                         int v, i = 0;
4880                         line += 9;
4881                         v = get_dec_u16(line, &i, i+3);
4882                         if ( v != -1 ) {
4883                                 ai->config.channelSet = cpu_to_le16(v);
4884                                 set_bit (FLAG_COMMIT, &ai->flags);
4885                         }
4886                 } else if ( !strncmp( line, "XmitPower: ", 11 ) ) {
4887                         int v, i = 0;
4888                         line += 11;
4889                         v = get_dec_u16(line, &i, i+3);
4890                         if ( v != -1 ) {
4891                                 ai->config.txPower = cpu_to_le16(v);
4892                                 set_bit (FLAG_COMMIT, &ai->flags);
4893                         }
4894                 } else if ( !strncmp( line, "WEP: ", 5 ) ) {
4895                         line += 5;
4896                         switch( line[0] ) {
4897                         case 's':
4898                                 set_auth_type(ai, AUTH_SHAREDKEY);
4899                                 break;
4900                         case 'e':
4901                                 set_auth_type(ai, AUTH_ENCRYPT);
4902                                 break;
4903                         default:
4904                                 set_auth_type(ai, AUTH_OPEN);
4905                                 break;
4906                         }
4907                         set_bit (FLAG_COMMIT, &ai->flags);
4908                 } else if ( !strncmp( line, "LongRetryLimit: ", 16 ) ) {
4909                         int v, i = 0;
4910 
4911                         line += 16;
4912                         v = get_dec_u16(line, &i, 3);
4913                         v = (v<0) ? 0 : ((v>255) ? 255 : v);
4914                         ai->config.longRetryLimit = cpu_to_le16(v);
4915                         set_bit (FLAG_COMMIT, &ai->flags);
4916                 } else if ( !strncmp( line, "ShortRetryLimit: ", 17 ) ) {
4917                         int v, i = 0;
4918 
4919                         line += 17;
4920                         v = get_dec_u16(line, &i, 3);
4921                         v = (v<0) ? 0 : ((v>255) ? 255 : v);
4922                         ai->config.shortRetryLimit = cpu_to_le16(v);
4923                         set_bit (FLAG_COMMIT, &ai->flags);
4924                 } else if ( !strncmp( line, "RTSThreshold: ", 14 ) ) {
4925                         int v, i = 0;
4926 
4927                         line += 14;
4928                         v = get_dec_u16(line, &i, 4);
4929                         v = (v<0) ? 0 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v);
4930                         ai->config.rtsThres = cpu_to_le16(v);
4931                         set_bit (FLAG_COMMIT, &ai->flags);
4932                 } else if ( !strncmp( line, "TXMSDULifetime: ", 16 ) ) {
4933                         int v, i = 0;
4934 
4935                         line += 16;
4936                         v = get_dec_u16(line, &i, 5);
4937                         v = (v<0) ? 0 : v;
4938                         ai->config.txLifetime = cpu_to_le16(v);
4939                         set_bit (FLAG_COMMIT, &ai->flags);
4940                 } else if ( !strncmp( line, "RXMSDULifetime: ", 16 ) ) {
4941                         int v, i = 0;
4942 
4943                         line += 16;
4944                         v = get_dec_u16(line, &i, 5);
4945                         v = (v<0) ? 0 : v;
4946                         ai->config.rxLifetime = cpu_to_le16(v);
4947                         set_bit (FLAG_COMMIT, &ai->flags);
4948                 } else if ( !strncmp( line, "TXDiversity: ", 13 ) ) {
4949                         ai->config.txDiversity =
4950                                 (line[13]=='l') ? 1 :
4951                                 ((line[13]=='r')? 2: 3);
4952                         set_bit (FLAG_COMMIT, &ai->flags);
4953                 } else if ( !strncmp( line, "RXDiversity: ", 13 ) ) {
4954                         ai->config.rxDiversity =
4955                                 (line[13]=='l') ? 1 :
4956                                 ((line[13]=='r')? 2: 3);
4957                         set_bit (FLAG_COMMIT, &ai->flags);
4958                 } else if ( !strncmp( line, "FragThreshold: ", 15 ) ) {
4959                         int v, i = 0;
4960 
4961                         line += 15;
4962                         v = get_dec_u16(line, &i, 4);
4963                         v = (v<256) ? 256 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v);
4964                         v = v & 0xfffe; /* Make sure its even */
4965                         ai->config.fragThresh = cpu_to_le16(v);
4966                         set_bit (FLAG_COMMIT, &ai->flags);
4967                 } else if (!strncmp(line, "Modulation: ", 12)) {
4968                         line += 12;
4969                         switch(*line) {
4970                         case 'd':  ai->config.modulation=MOD_DEFAULT; set_bit(FLAG_COMMIT, &ai->flags); break;
4971                         case 'c':  ai->config.modulation=MOD_CCK; set_bit(FLAG_COMMIT, &ai->flags); break;
4972                         case 'm':  ai->config.modulation=MOD_MOK; set_bit(FLAG_COMMIT, &ai->flags); break;
4973                         default: airo_print_warn(ai->dev->name, "Unknown modulation");
4974                         }
4975                 } else if (!strncmp(line, "Preamble: ", 10)) {
4976                         line += 10;
4977                         switch(*line) {
4978                         case 'a': ai->config.preamble=PREAMBLE_AUTO; set_bit(FLAG_COMMIT, &ai->flags); break;
4979                         case 'l': ai->config.preamble=PREAMBLE_LONG; set_bit(FLAG_COMMIT, &ai->flags); break;
4980                         case 's': ai->config.preamble=PREAMBLE_SHORT; set_bit(FLAG_COMMIT, &ai->flags); break;
4981                         default: airo_print_warn(ai->dev->name, "Unknown preamble");
4982                         }
4983                 } else {
4984                         airo_print_warn(ai->dev->name, "Couldn't figure out %s", line);
4985                 }
4986                 while( line[0] && line[0] != '\n' ) line++;
4987                 if ( line[0] ) line++;
4988         }
4989         airo_config_commit(dev, NULL, NULL, NULL);
4990 }
4991 
4992 static const char *get_rmode(__le16 mode)
4993 {
4994         switch(mode & RXMODE_MASK) {
4995         case RXMODE_RFMON:  return "rfmon";
4996         case RXMODE_RFMON_ANYBSS:  return "yna (any) bss rfmon";
4997         case RXMODE_LANMON:  return "lanmon";
4998         }
4999         return "ESS";
5000 }
5001 
5002 static int proc_config_open(struct inode *inode, struct file *file)
5003 {
5004         struct proc_data *data;
5005         struct net_device *dev = PDE_DATA(inode);
5006         struct airo_info *ai = dev->ml_priv;
5007         int i;
5008         __le16 mode;
5009 
5010         if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
5011                 return -ENOMEM;
5012         data = file->private_data;
5013         if ((data->rbuffer = kmalloc( 2048, GFP_KERNEL )) == NULL) {
5014                 kfree (file->private_data);
5015                 return -ENOMEM;
5016         }
5017         if ((data->wbuffer = kzalloc( 2048, GFP_KERNEL )) == NULL) {
5018                 kfree (data->rbuffer);
5019                 kfree (file->private_data);
5020                 return -ENOMEM;
5021         }
5022         data->maxwritelen = 2048;
5023         data->on_close = proc_config_on_close;
5024 
5025         readConfigRid(ai, 1);
5026 
5027         mode = ai->config.opmode & MODE_CFG_MASK;
5028         i = sprintf( data->rbuffer,
5029                      "Mode: %s\n"
5030                      "Radio: %s\n"
5031                      "NodeName: %-16s\n"
5032                      "PowerMode: %s\n"
5033                      "DataRates: %d %d %d %d %d %d %d %d\n"
5034                      "Channel: %d\n"
5035                      "XmitPower: %d\n",
5036                      mode == MODE_STA_IBSS ? "adhoc" :
5037                      mode == MODE_STA_ESS ? get_rmode(ai->config.rmode):
5038                      mode == MODE_AP ? "AP" :
5039                      mode == MODE_AP_RPTR ? "AP RPTR" : "Error",
5040                      test_bit(FLAG_RADIO_OFF, &ai->flags) ? "off" : "on",
5041                      ai->config.nodeName,
5042                      ai->config.powerSaveMode == POWERSAVE_CAM ? "CAM" :
5043                      ai->config.powerSaveMode == POWERSAVE_PSP ? "PSP" :
5044                      ai->config.powerSaveMode == POWERSAVE_PSPCAM ? "PSPCAM" :
5045                      "Error",
5046                      (int)ai->config.rates[0],
5047                      (int)ai->config.rates[1],
5048                      (int)ai->config.rates[2],
5049                      (int)ai->config.rates[3],
5050                      (int)ai->config.rates[4],
5051                      (int)ai->config.rates[5],
5052                      (int)ai->config.rates[6],
5053                      (int)ai->config.rates[7],
5054                      le16_to_cpu(ai->config.channelSet),
5055                      le16_to_cpu(ai->config.txPower)
5056                 );
5057         sprintf( data->rbuffer + i,
5058                  "LongRetryLimit: %d\n"
5059                  "ShortRetryLimit: %d\n"
5060                  "RTSThreshold: %d\n"
5061                  "TXMSDULifetime: %d\n"
5062                  "RXMSDULifetime: %d\n"
5063                  "TXDiversity: %s\n"
5064                  "RXDiversity: %s\n"
5065                  "FragThreshold: %d\n"
5066                  "WEP: %s\n"
5067                  "Modulation: %s\n"
5068                  "Preamble: %s\n",
5069                  le16_to_cpu(ai->config.longRetryLimit),
5070                  le16_to_cpu(ai->config.shortRetryLimit),
5071                  le16_to_cpu(ai->config.rtsThres),
5072                  le16_to_cpu(ai->config.txLifetime),
5073                  le16_to_cpu(ai->config.rxLifetime),
5074                  ai->config.txDiversity == 1 ? "left" :
5075                  ai->config.txDiversity == 2 ? "right" : "both",
5076                  ai->config.rxDiversity == 1 ? "left" :
5077                  ai->config.rxDiversity == 2 ? "right" : "both",
5078                  le16_to_cpu(ai->config.fragThresh),
5079                  ai->config.authType == AUTH_ENCRYPT ? "encrypt" :
5080                  ai->config.authType == AUTH_SHAREDKEY ? "shared" : "open",
5081                  ai->config.modulation == MOD_DEFAULT ? "default" :
5082                  ai->config.modulation == MOD_CCK ? "cck" :
5083                  ai->config.modulation == MOD_MOK ? "mok" : "error",
5084                  ai->config.preamble == PREAMBLE_AUTO ? "auto" :
5085                  ai->config.preamble == PREAMBLE_LONG ? "long" :
5086                  ai->config.preamble == PREAMBLE_SHORT ? "short" : "error"
5087                 );
5088         data->readlen = strlen( data->rbuffer );
5089         return 0;
5090 }
5091 
5092 static void proc_SSID_on_close(struct inode *inode, struct file *file)
5093 {
5094         struct proc_data *data = file->private_data;
5095         struct net_device *dev = PDE_DATA(inode);
5096         struct airo_info *ai = dev->ml_priv;
5097         SsidRid SSID_rid;
5098         int i;
5099         char *p = data->wbuffer;
5100         char *end = p + data->writelen;
5101 
5102         if (!data->writelen)
5103                 return;
5104 
5105         *end = '\n'; /* sentinel; we have space for it */
5106 
5107         memset(&SSID_rid, 0, sizeof(SSID_rid));
5108 
5109         for (i = 0; i < 3 && p < end; i++) {
5110                 int j = 0;
5111                 /* copy up to 32 characters from this line */
5112                 while (*p != '\n' && j < 32)
5113                         SSID_rid.ssids[i].ssid[j++] = *p++;
5114                 if (j == 0)
5115                         break;
5116                 SSID_rid.ssids[i].len = cpu_to_le16(j);
5117                 /* skip to the beginning of the next line */
5118                 while (*p++ != '\n')
5119                         ;
5120         }
5121         if (i)
5122                 SSID_rid.len = cpu_to_le16(sizeof(SSID_rid));
5123         disable_MAC(ai, 1);
5124         writeSsidRid(ai, &SSID_rid, 1);
5125         enable_MAC(ai, 1);
5126 }
5127 
5128 static void proc_APList_on_close( struct inode *inode, struct file *file ) {
5129         struct proc_data *data = file->private_data;
5130         struct net_device *dev = PDE_DATA(inode);
5131         struct airo_info *ai = dev->ml_priv;
5132         APListRid *APList_rid = &ai->APList;
5133         int i;
5134 
5135         if ( !data->writelen ) return;
5136 
5137         memset(APList_rid, 0, sizeof(*APList_rid));
5138         APList_rid->len = cpu_to_le16(sizeof(*APList_rid));
5139 
5140         for( i = 0; i < 4 && data->writelen >= (i+1)*6*3; i++ ) {
5141                 int j;
5142                 for( j = 0; j < 6*3 && data->wbuffer[j+i*6*3]; j++ ) {
5143                         switch(j%3) {
5144                         case 0:
5145                                 APList_rid->ap[i][j/3]=
5146                                         hex_to_bin(data->wbuffer[j+i*6*3])<<4;
5147                                 break;
5148                         case 1:
5149                                 APList_rid->ap[i][j/3]|=
5150                                         hex_to_bin(data->wbuffer[j+i*6*3]);
5151                                 break;
5152                         }
5153                 }
5154         }
5155         disable_MAC(ai, 1);
5156         writeAPListRid(ai, APList_rid, 1);
5157         enable_MAC(ai, 1);
5158 }
5159 
5160 /* This function wraps PC4500_writerid with a MAC disable */
5161 static int do_writerid( struct airo_info *ai, u16 rid, const void *rid_data,
5162                         int len, int dummy ) {
5163         int rc;
5164 
5165         disable_MAC(ai, 1);
5166         rc = PC4500_writerid(ai, rid, rid_data, len, 1);
5167         enable_MAC(ai, 1);
5168         return rc;
5169 }
5170 
5171 /* Returns the WEP key at the specified index, or -1 if that key does
5172  * not exist.  The buffer is assumed to be at least 16 bytes in length.
5173  */
5174 static int get_wep_key(struct airo_info *ai, u16 index, char *buf, u16 buflen)
5175 {
5176         WepKeyRid wkr;
5177         int rc;
5178         __le16 lastindex;
5179 
5180         rc = readWepKeyRid(ai, &wkr, 1, 1);
5181         if (rc != SUCCESS)
5182                 return -1;
5183         do {
5184                 lastindex = wkr.kindex;
5185                 if (le16_to_cpu(wkr.kindex) == index) {
5186                         int klen = min_t(int, buflen, le16_to_cpu(wkr.klen));
5187                         memcpy(buf, wkr.key, klen);
5188                         return klen;
5189                 }
5190                 rc = readWepKeyRid(ai, &wkr, 0, 1);
5191                 if (rc != SUCCESS)
5192                         return -1;
5193         } while (lastindex != wkr.kindex);
5194         return -1;
5195 }
5196 
5197 static int get_wep_tx_idx(struct airo_info *ai)
5198 {
5199         WepKeyRid wkr;
5200         int rc;
5201         __le16 lastindex;
5202 
5203         rc = readWepKeyRid(ai, &wkr, 1, 1);
5204         if (rc != SUCCESS)
5205                 return -1;
5206         do {
5207                 lastindex = wkr.kindex;
5208                 if (wkr.kindex == cpu_to_le16(0xffff))
5209                         return wkr.mac[0];
5210                 rc = readWepKeyRid(ai, &wkr, 0, 1);
5211                 if (rc != SUCCESS)
5212                         return -1;
5213         } while (lastindex != wkr.kindex);
5214         return -1;
5215 }
5216 
5217 static int set_wep_key(struct airo_info *ai, u16 index, const char *key,
5218                        u16 keylen, int perm, int lock)
5219 {
5220         static const unsigned char macaddr[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 };
5221         WepKeyRid wkr;
5222         int rc;
5223 
5224         if (WARN_ON(keylen == 0))
5225                 return -1;
5226 
5227         memset(&wkr, 0, sizeof(wkr));
5228         wkr.len = cpu_to_le16(sizeof(wkr));
5229         wkr.kindex = cpu_to_le16(index);
5230         wkr.klen = cpu_to_le16(keylen);
5231         memcpy(wkr.key, key, keylen);
5232         memcpy(wkr.mac, macaddr, ETH_ALEN);
5233 
5234         if (perm) disable_MAC(ai, lock);
5235         rc = writeWepKeyRid(ai, &wkr, perm, lock);
5236         if (perm) enable_MAC(ai, lock);
5237         return rc;
5238 }
5239 
5240 static int set_wep_tx_idx(struct airo_info *ai, u16 index, int perm, int lock)
5241 {
5242         WepKeyRid wkr;
5243         int rc;
5244 
5245         memset(&wkr, 0, sizeof(wkr));
5246         wkr.len = cpu_to_le16(sizeof(wkr));
5247         wkr.kindex = cpu_to_le16(0xffff);
5248         wkr.mac[0] = (char)index;
5249 
5250         if (perm) {
5251                 ai->defindex = (char)index;
5252                 disable_MAC(ai, lock);
5253         }
5254 
5255         rc = writeWepKeyRid(ai, &wkr, perm, lock);
5256 
5257         if (perm)
5258                 enable_MAC(ai, lock);
5259         return rc;
5260 }
5261 
5262 static void proc_wepkey_on_close( struct inode *inode, struct file *file ) {
5263         struct proc_data *data;
5264         struct net_device *dev = PDE_DATA(inode);
5265         struct airo_info *ai = dev->ml_priv;
5266         int i, rc;
5267         char key[16];
5268         u16 index = 0;
5269         int j = 0;
5270 
5271         memset(key, 0, sizeof(key));
5272 
5273         data = file->private_data;
5274         if ( !data->writelen ) return;
5275 
5276         if (data->wbuffer[0] >= '' && data->wbuffer[0] <= '3' &&
5277             (data->wbuffer[1] == ' ' || data->wbuffer[1] == '\n')) {
5278                 index = data->wbuffer[0] - '';
5279                 if (data->wbuffer[1] == '\n') {
5280                         rc = set_wep_tx_idx(ai, index, 1, 1);
5281                         if (rc < 0) {
5282                                 airo_print_err(ai->dev->name, "failed to set "
5283                                                "WEP transmit index to %d: %d.",
5284                                                index, rc);
5285                         }
5286                         return;
5287                 }
5288                 j = 2;
5289         } else {
5290                 airo_print_err(ai->dev->name, "WepKey passed invalid key index");
5291                 return;
5292         }
5293 
5294         for( i = 0; i < 16*3 && data->wbuffer[i+j]; i++ ) {
5295                 switch(i%3) {
5296                 case 0:
5297                         key[i/3] = hex_to_bin(data->wbuffer[i+j])<<4;
5298                         break;
5299                 case 1:
5300                         key[i/3] |= hex_to_bin(data->wbuffer[i+j]);
5301                         break;
5302                 }
5303         }
5304 
5305         rc = set_wep_key(ai, index, key, i/3, 1, 1);
5306         if (rc < 0) {
5307                 airo_print_err(ai->dev->name, "failed to set WEP key at index "
5308                                "%d: %d.", index, rc);
5309         }
5310 }
5311 
5312 static int proc_wepkey_open( struct inode *inode, struct file *file )
5313 {
5314         struct proc_data *data;
5315         struct net_device *dev = PDE_DATA(inode);
5316         struct airo_info *ai = dev->ml_priv;
5317         char *ptr;
5318         WepKeyRid wkr;
5319         __le16 lastindex;
5320         int j=0;
5321         int rc;
5322 
5323         if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
5324                 return -ENOMEM;
5325         memset(&wkr, 0, sizeof(wkr));
5326         data = file->private_data;
5327         if ((data->rbuffer = kzalloc( 180, GFP_KERNEL )) == NULL) {
5328                 kfree (file->private_data);
5329                 return -ENOMEM;
5330         }
5331         data->writelen = 0;
5332         data->maxwritelen = 80;
5333         if ((data->wbuffer = kzalloc( 80, GFP_KERNEL )) == NULL) {
5334                 kfree (data->rbuffer);
5335                 kfree (file->private_data);
5336                 return -ENOMEM;
5337         }
5338         data->on_close = proc_wepkey_on_close;
5339 
5340         ptr = data->rbuffer;
5341         strcpy(ptr, "No wep keys\n");
5342         rc = readWepKeyRid(ai, &wkr, 1, 1);
5343         if (rc == SUCCESS) do {
5344                 lastindex = wkr.kindex;
5345                 if (wkr.kindex == cpu_to_le16(0xffff)) {
5346                         j += sprintf(ptr+j, "Tx key = %d\n",
5347                                      (int)wkr.mac[0]);
5348                 } else {
5349                         j += sprintf(ptr+j, "Key %d set with length = %d\n",
5350                                      le16_to_cpu(wkr.kindex),
5351                                      le16_to_cpu(wkr.klen));
5352                 }
5353                 readWepKeyRid(ai, &wkr, 0, 1);
5354         } while((lastindex != wkr.kindex) && (j < 180-30));
5355 
5356         data->readlen = strlen( data->rbuffer );
5357         return 0;
5358 }
5359 
5360 static int proc_SSID_open(struct inode *inode, struct file *file)
5361 {
5362         struct proc_data *data;
5363         struct net_device *dev = PDE_DATA(inode);
5364         struct airo_info *ai = dev->ml_priv;
5365         int i;
5366         char *ptr;
5367         SsidRid SSID_rid;
5368 
5369         if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
5370                 return -ENOMEM;
5371         data = file->private_data;
5372         if ((data->rbuffer = kmalloc( 104, GFP_KERNEL )) == NULL) {
5373                 kfree (file->private_data);
5374                 return -ENOMEM;
5375         }
5376         data->writelen = 0;
5377         data->maxwritelen = 33*3;
5378         /* allocate maxwritelen + 1; we'll want a sentinel */
5379         if ((data->wbuffer = kzalloc(33*3 + 1, GFP_KERNEL)) == NULL) {
5380                 kfree (data->rbuffer);
5381                 kfree (file->private_data);
5382                 return -ENOMEM;
5383         }
5384         data->on_close = proc_SSID_on_close;
5385 
5386         readSsidRid(ai, &SSID_rid);
5387         ptr = data->rbuffer;
5388         for (i = 0; i < 3; i++) {
5389                 int j;
5390                 size_t len = le16_to_cpu(SSID_rid.ssids[i].len);
5391                 if (!len)
5392                         break;
5393                 if (len > 32)
5394                         len = 32;
5395                 for (j = 0; j < len && SSID_rid.ssids[i].ssid[j]; j++)
5396                         *ptr++ = SSID_rid.ssids[i].ssid[j];
5397                 *ptr++ = '\n';
5398         }
5399         *ptr = '\0';
5400         data->readlen = strlen( data->rbuffer );
5401         return 0;
5402 }
5403 
5404 static int proc_APList_open( struct inode *inode, struct file *file ) {
5405         struct proc_data *data;
5406         struct net_device *dev = PDE_DATA(inode);
5407         struct airo_info *ai = dev->ml_priv;
5408         int i;
5409         char *ptr;
5410         APListRid *APList_rid = &ai->APList;
5411 
5412         if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
5413                 return -ENOMEM;
5414         data = file->private_data;
5415         if ((data->rbuffer = kmalloc( 104, GFP_KERNEL )) == NULL) {
5416                 kfree (file->private_data);
5417                 return -ENOMEM;
5418         }
5419         data->writelen = 0;
5420         data->maxwritelen = 4*6*3;
5421         if ((data->wbuffer = kzalloc( data->maxwritelen, GFP_KERNEL )) == NULL) {
5422                 kfree (data->rbuffer);
5423                 kfree (file->private_data);
5424                 return -ENOMEM;
5425         }
5426         data->on_close = proc_APList_on_close;
5427 
5428         ptr = data->rbuffer;
5429         for( i = 0; i < 4; i++ ) {
5430 // We end when we find a zero MAC
5431                 if ( !*(int*)APList_rid->ap[i] &&
5432                      !*(int*)&APList_rid->ap[i][2]) break;
5433                 ptr += sprintf(ptr, "%pM\n", APList_rid->ap[i]);
5434         }
5435         if (i==0) ptr += sprintf(ptr, "Not using specific APs\n");
5436 
5437         *ptr = '\0';
5438         data->readlen = strlen( data->rbuffer );
5439         return 0;
5440 }
5441 
5442 static int proc_BSSList_open( struct inode *inode, struct file *file ) {
5443         struct proc_data *data;
5444         struct net_device *dev = PDE_DATA(inode);
5445         struct airo_info *ai = dev->ml_priv;
5446         char *ptr;
5447         BSSListRid BSSList_rid;
5448         int rc;
5449         /* If doLoseSync is not 1, we won't do a Lose Sync */
5450         int doLoseSync = -1;
5451 
5452         if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
5453                 return -ENOMEM;
5454         data = file->private_data;
5455         if ((data->rbuffer = kmalloc( 1024, GFP_KERNEL )) == NULL) {
5456                 kfree (file->private_data);
5457                 return -ENOMEM;
5458         }
5459         data->writelen = 0;
5460         data->maxwritelen = 0;
5461         data->wbuffer = NULL;
5462         data->on_close = NULL;
5463 
5464         if (file->f_mode & FMODE_WRITE) {
5465                 if (!(file->f_mode & FMODE_READ)) {
5466                         Cmd cmd;
5467                         Resp rsp;
5468 
5469                         if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN;
5470                         memset(&cmd, 0, sizeof(cmd));
5471                         cmd.cmd=CMD_LISTBSS;
5472                         if (down_interruptible(&ai->sem))
5473                                 return -ERESTARTSYS;
5474                         issuecommand(ai, &cmd, &rsp);
5475                         up(&ai->sem);
5476                         data->readlen = 0;
5477                         return 0;
5478                 }
5479                 doLoseSync = 1;
5480         }
5481         ptr = data->rbuffer;
5482         /* There is a race condition here if there are concurrent opens.
5483            Since it is a rare condition, we'll just live with it, otherwise
5484            we have to add a spin lock... */
5485         rc = readBSSListRid(ai, doLoseSync, &BSSList_rid);
5486         while(rc == 0 && BSSList_rid.index != cpu_to_le16(0xffff)) {
5487                 ptr += sprintf(ptr, "%pM %*s rssi = %d",
5488                                BSSList_rid.bssid,
5489                                 (int)BSSList_rid.ssidLen,
5490                                 BSSList_rid.ssid,
5491                                 le16_to_cpu(BSSList_rid.dBm));
5492                 ptr += sprintf(ptr, " channel = %d %s %s %s %s\n",
5493                                 le16_to_cpu(BSSList_rid.dsChannel),
5494                                 BSSList_rid.cap & CAP_ESS ? "ESS" : "",
5495                                 BSSList_rid.cap & CAP_IBSS ? "adhoc" : "",
5496                                 BSSList_rid.cap & CAP_PRIVACY ? "wep" : "",
5497                                 BSSList_rid.cap & CAP_SHORTHDR ? "shorthdr" : "");
5498                 rc = readBSSListRid(ai, 0, &BSSList_rid);
5499         }
5500         *ptr = '\0';
5501         data->readlen = strlen( data->rbuffer );
5502         return 0;
5503 }
5504 
5505 static int proc_close( struct inode *inode, struct file *file )
5506 {
5507         struct proc_data *data = file->private_data;
5508 
5509         if (data->on_close != NULL)
5510                 data->on_close(inode, file);
5511         kfree(data->rbuffer);
5512         kfree(data->wbuffer);
5513         kfree(data);
5514         return 0;
5515 }
5516 
5517 /* Since the card doesn't automatically switch to the right WEP mode,
5518    we will make it do it.  If the card isn't associated, every secs we
5519    will switch WEP modes to see if that will help.  If the card is
5520    associated we will check every minute to see if anything has
5521    changed. */
5522 static void timer_func( struct net_device *dev ) {
5523         struct airo_info *apriv = dev->ml_priv;
5524 
5525 /* We don't have a link so try changing the authtype */
5526         readConfigRid(apriv, 0);
5527         disable_MAC(apriv, 0);
5528         switch(apriv->config.authType) {
5529                 case AUTH_ENCRYPT:
5530 /* So drop to OPEN */
5531                         apriv->config.authType = AUTH_OPEN;
5532                         break;
5533                 case AUTH_SHAREDKEY:
5534                         if (apriv->keyindex < auto_wep) {
5535                                 set_wep_tx_idx(apriv, apriv->keyindex, 0, 0);
5536                                 apriv->config.authType = AUTH_SHAREDKEY;
5537                                 apriv->keyindex++;
5538                         } else {
5539                                 /* Drop to ENCRYPT */
5540                                 apriv->keyindex = 0;
5541                                 set_wep_tx_idx(apriv, apriv->defindex, 0, 0);
5542                                 apriv->config.authType = AUTH_ENCRYPT;
5543                         }
5544                         break;
5545                 default:  /* We'll escalate to SHAREDKEY */
5546                         apriv->config.authType = AUTH_SHAREDKEY;
5547         }
5548         set_bit (FLAG_COMMIT, &apriv->flags);
5549         writeConfigRid(apriv, 0);
5550         enable_MAC(apriv, 0);
5551         up(&apriv->sem);
5552 
5553 /* Schedule check to see if the change worked */
5554         clear_bit(JOB_AUTOWEP, &apriv->jobs);
5555         apriv->expires = RUN_AT(HZ*3);
5556 }
5557 
5558 #ifdef CONFIG_PCI
5559 static int airo_pci_probe(struct pci_dev *pdev,
5560                                     const struct pci_device_id *pent)
5561 {
5562         struct net_device *dev;
5563 
5564         if (pci_enable_device(pdev))
5565                 return -ENODEV;
5566         pci_set_master(pdev);
5567 
5568         if (pdev->device == 0x5000 || pdev->device == 0xa504)
5569                         dev = _init_airo_card(pdev->irq, pdev->resource[0].start, 0, pdev, &pdev->dev);
5570         else
5571                         dev = _init_airo_card(pdev->irq, pdev->resource[2].start, 0, pdev, &pdev->dev);
5572         if (!dev) {
5573                 pci_disable_device(pdev);
5574                 return -ENODEV;
5575         }
5576 
5577         pci_set_drvdata(pdev, dev);
5578         return 0;
5579 }
5580 
5581 static void airo_pci_remove(struct pci_dev *pdev)
5582 {
5583         struct net_device *dev = pci_get_drvdata(pdev);
5584 
5585         airo_print_info(dev->name, "Unregistering...");
5586         stop_airo_card(dev, 1);
5587         pci_disable_device(pdev);
5588 }
5589 
5590 static int airo_pci_suspend(struct pci_dev *pdev, pm_message_t state)
5591 {
5592         struct net_device *dev = pci_get_drvdata(pdev);
5593         struct airo_info *ai = dev->ml_priv;
5594         Cmd cmd;
5595         Resp rsp;
5596 
5597         if (!ai->SSID)
5598                 ai->SSID = kmalloc(sizeof(SsidRid), GFP_KERNEL);
5599         if (!ai->SSID)
5600                 return -ENOMEM;
5601         readSsidRid(ai, ai->SSID);
5602         memset(&cmd, 0, sizeof(cmd));
5603         /* the lock will be released at the end of the resume callback */
5604         if (down_interruptible(&ai->sem))
5605                 return -EAGAIN;
5606         disable_MAC(ai, 0);
5607         netif_device_detach(dev);
5608         ai->power = state;
5609         cmd.cmd = HOSTSLEEP;
5610         issuecommand(ai, &cmd, &rsp);
5611 
5612         pci_enable_wake(pdev, pci_choose_state(pdev, state), 1);
5613         pci_save_state(pdev);
5614         pci_set_power_state(pdev, pci_choose_state(pdev, state));
5615         return 0;
5616 }
5617 
5618 static int airo_pci_resume(struct pci_dev *pdev)
5619 {
5620         struct net_device *dev = pci_get_drvdata(pdev);
5621         struct airo_info *ai = dev->ml_priv;
5622         pci_power_t prev_state = pdev->current_state;
5623 
5624         pci_set_power_state(pdev, PCI_D0);
5625         pci_restore_state(pdev);
5626         pci_enable_wake(pdev, PCI_D0, 0);
5627 
5628         if (prev_state != PCI_D1) {
5629                 reset_card(dev, 0);
5630                 mpi_init_descriptors(ai);
5631                 setup_card(ai, dev->dev_addr, 0);
5632                 clear_bit(FLAG_RADIO_OFF, &ai->flags);
5633                 clear_bit(FLAG_PENDING_XMIT, &ai->flags);
5634         } else {
5635                 OUT4500(ai, EVACK, EV_AWAKEN);
5636                 OUT4500(ai, EVACK, EV_AWAKEN);
5637                 msleep(100);
5638         }
5639 
5640         set_bit(FLAG_COMMIT, &ai->flags);
5641         disable_MAC(ai, 0);
5642         msleep(200);
5643         if (ai->SSID) {
5644                 writeSsidRid(ai, ai->SSID, 0);
5645                 kfree(ai->SSID);
5646                 ai->SSID = NULL;
5647         }
5648         writeAPListRid(ai, &ai->APList, 0);
5649         writeConfigRid(ai, 0);
5650         enable_MAC(ai, 0);
5651         ai->power = PMSG_ON;
5652         netif_device_attach(dev);
5653         netif_wake_queue(dev);
5654         enable_interrupts(ai);
5655         up(&ai->sem);
5656         return 0;
5657 }
5658 #endif
5659 
5660 static int __init airo_init_module( void )
5661 {
5662         int i;
5663 
5664         proc_kuid = make_kuid(&init_user_ns, proc_uid);
5665         proc_kgid = make_kgid(&init_user_ns, proc_gid);
5666         if (!uid_valid(proc_kuid) || !gid_valid(proc_kgid))
5667                 return -EINVAL;
5668 
5669         airo_entry = proc_mkdir_mode("driver/aironet", airo_perm, NULL);
5670 
5671         if (airo_entry)
5672                 proc_set_user(airo_entry, proc_kuid, proc_kgid);
5673 
5674         for (i = 0; i < 4 && io[i] && irq[i]; i++) {
5675                 airo_print_info("", "Trying to configure ISA adapter at irq=%d "
5676                         "io=0x%x", irq[i], io[i] );
5677                 if (init_airo_card( irq[i], io[i], 0, NULL ))
5678                         /* do nothing */ ;
5679         }
5680 
5681 #ifdef CONFIG_PCI
5682         airo_print_info("", "Probing for PCI adapters");
5683         i = pci_register_driver(&airo_driver);
5684         airo_print_info("", "Finished probing for PCI adapters");
5685 
5686         if (i) {
5687                 remove_proc_entry("driver/aironet", NULL);
5688                 return i;
5689         }
5690 #endif
5691 
5692         /* Always exit with success, as we are a library module
5693          * as well as a driver module
5694          */
5695         return 0;
5696 }
5697 
5698 static void __exit airo_cleanup_module( void )
5699 {
5700         struct airo_info *ai;
5701         while(!list_empty(&airo_devices)) {
5702                 ai = list_entry(airo_devices.next, struct airo_info, dev_list);
5703                 airo_print_info(ai->dev->name, "Unregistering...");
5704                 stop_airo_card(ai->dev, 1);
5705         }
5706 #ifdef CONFIG_PCI
5707         pci_unregister_driver(&airo_driver);
5708 #endif
5709         remove_proc_entry("driver/aironet", NULL);
5710 }
5711 
5712 /*
5713  * Initial Wireless Extension code for Aironet driver by :
5714  *      Jean Tourrilhes <jt@hpl.hp.com> - HPL - 17 November 00
5715  * Conversion to new driver API by :
5716  *      Jean Tourrilhes <jt@hpl.hp.com> - HPL - 26 March 02
5717  * Javier also did a good amount of work here, adding some new extensions
5718  * and fixing my code. Let's just say that without him this code just
5719  * would not work at all... - Jean II
5720  */
5721 
5722 static u8 airo_rssi_to_dbm (tdsRssiEntry *rssi_rid, u8 rssi)
5723 {
5724         if (!rssi_rid)
5725                 return 0;
5726 
5727         return (0x100 - rssi_rid[rssi].rssidBm);
5728 }
5729 
5730 static u8 airo_dbm_to_pct (tdsRssiEntry *rssi_rid, u8 dbm)
5731 {
5732         int i;
5733 
5734         if (!rssi_rid)
5735                 return 0;
5736 
5737         for (i = 0; i < 256; i++)
5738                 if (rssi_rid[i].rssidBm == dbm)
5739                         return rssi_rid[i].rssipct;
5740 
5741         return 0;
5742 }
5743 
5744 
5745 static int airo_get_quality (StatusRid *status_rid, CapabilityRid *cap_rid)
5746 {
5747         int quality = 0;
5748         u16 sq;
5749 
5750         if ((status_rid->mode & cpu_to_le16(0x3f)) != cpu_to_le16(0x3f))
5751                 return 0;
5752 
5753         if (!(cap_rid->hardCap & cpu_to_le16(8)))
5754                 return 0;
5755 
5756         sq = le16_to_cpu(status_rid->signalQuality);
5757         if (memcmp(cap_rid->prodName, "350", 3))
5758                 if (sq > 0x20)
5759                         quality = 0;
5760                 else
5761                         quality = 0x20 - sq;
5762         else
5763                 if (sq > 0xb0)
5764                         quality = 0;
5765                 else if (sq < 0x10)
5766                         quality = 0xa0;
5767                 else
5768                         quality = 0xb0 - sq;
5769         return quality;
5770 }
5771 
5772 #define airo_get_max_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x20 : 0xa0)
5773 #define airo_get_avg_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x10 : 0x50);
5774 
5775 /*------------------------------------------------------------------*/
5776 /*
5777  * Wireless Handler : get protocol name
5778  */
5779 static int airo_get_name(struct net_device *dev,
5780                          struct iw_request_info *info,
5781                          char *cwrq,
5782                          char *extra)
5783 {
5784         strcpy(cwrq, "IEEE 802.11-DS");
5785         return 0;
5786 }
5787 
5788 /*------------------------------------------------------------------*/
5789 /*
5790  * Wireless Handler : set frequency
5791  */
5792 static int airo_set_freq(struct net_device *dev,
5793                          struct iw_request_info *info,
5794                          struct iw_freq *fwrq,
5795                          char *extra)
5796 {
5797         struct airo_info *local = dev->ml_priv;
5798         int rc = -EINPROGRESS;          /* Call commit handler */
5799 
5800         /* If setting by frequency, convert to a channel */
5801         if(fwrq->e == 1) {
5802                 int f = fwrq->m / 100000;
5803 
5804                 /* Hack to fall through... */
5805                 fwrq->e = 0;
5806                 fwrq->m = ieee80211_frequency_to_channel(f);
5807         }
5808         /* Setting by channel number */
5809         if((fwrq->m > 1000) || (fwrq->e > 0))
5810                 rc = -EOPNOTSUPP;
5811         else {
5812                 int channel = fwrq->m;
5813                 /* We should do a better check than that,
5814                  * based on the card capability !!! */
5815                 if((channel < 1) || (channel > 14)) {
5816                         airo_print_dbg(dev->name, "New channel value of %d is invalid!",
5817                                 fwrq->m);
5818                         rc = -EINVAL;
5819                 } else {
5820                         readConfigRid(local, 1);
5821                         /* Yes ! We can set it !!! */
5822                         local->config.channelSet = cpu_to_le16(channel);
5823                         set_bit (FLAG_COMMIT, &local->flags);
5824                 }
5825         }
5826         return rc;
5827 }
5828 
5829 /*------------------------------------------------------------------*/
5830 /*
5831  * Wireless Handler : get frequency
5832  */
5833 static int airo_get_freq(struct net_device *dev,
5834                          struct iw_request_info *info,
5835                          struct iw_freq *fwrq,
5836                          char *extra)
5837 {
5838         struct airo_info *local = dev->ml_priv;
5839         StatusRid status_rid;           /* Card status info */
5840         int ch;
5841 
5842         readConfigRid(local, 1);
5843         if ((local->config.opmode & MODE_CFG_MASK) == MODE_STA_ESS)
5844                 status_rid.channel = local->config.channelSet;
5845         else
5846                 readStatusRid(local, &status_rid, 1);
5847 
5848         ch = le16_to_cpu(status_rid.channel);
5849         if((ch > 0) && (ch < 15)) {
5850                 fwrq->m = 100000 *
5851                         ieee80211_channel_to_frequency(ch, IEEE80211_BAND_2GHZ);
5852                 fwrq->e = 1;
5853         } else {
5854                 fwrq->m = ch;
5855                 fwrq->e = 0;
5856         }
5857 
5858         return 0;
5859 }
5860 
5861 /*------------------------------------------------------------------*/
5862 /*
5863  * Wireless Handler : set ESSID
5864  */
5865 static int airo_set_essid(struct net_device *dev,
5866                           struct iw_request_info *info,
5867                           struct iw_point *dwrq,
5868                           char *extra)
5869 {
5870         struct airo_info *local = dev->ml_priv;
5871         SsidRid SSID_rid;               /* SSIDs */
5872 
5873         /* Reload the list of current SSID */
5874         readSsidRid(local, &SSID_rid);
5875 
5876         /* Check if we asked for `any' */
5877         if (dwrq->flags == 0) {
5878                 /* Just send an empty SSID list */
5879                 memset(&SSID_rid, 0, sizeof(SSID_rid));
5880         } else {
5881                 unsigned index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
5882 
5883                 /* Check the size of the string */
5884                 if (dwrq->length > IW_ESSID_MAX_SIZE)
5885                         return -E2BIG ;
5886 
5887                 /* Check if index is valid */
5888                 if (index >= ARRAY_SIZE(SSID_rid.ssids))
5889                         return -EINVAL;
5890 
5891                 /* Set the SSID */
5892                 memset(SSID_rid.ssids[index].ssid, 0,
5893                        sizeof(SSID_rid.ssids[index].ssid));
5894                 memcpy(SSID_rid.ssids[index].ssid, extra, dwrq->length);
5895                 SSID_rid.ssids[index].len = cpu_to_le16(dwrq->length);
5896         }
5897         SSID_rid.len = cpu_to_le16(sizeof(SSID_rid));
5898         /* Write it to the card */
5899         disable_MAC(local, 1);
5900         writeSsidRid(local, &SSID_rid, 1);
5901         enable_MAC(local, 1);
5902 
5903         return 0;
5904 }
5905 
5906 /*------------------------------------------------------------------*/
5907 /*
5908  * Wireless Handler : get ESSID
5909  */
5910 static int airo_get_essid(struct net_device *dev,
5911                           struct iw_request_info *info,
5912                           struct iw_point *dwrq,
5913                           char *extra)
5914 {
5915         struct airo_info *local = dev->ml_priv;
5916         StatusRid status_rid;           /* Card status info */
5917 
5918         readStatusRid(local, &status_rid, 1);
5919 
5920         /* Note : if dwrq->flags != 0, we should
5921          * get the relevant SSID from the SSID list... */
5922 
5923         /* Get the current SSID */
5924         memcpy(extra, status_rid.SSID, le16_to_cpu(status_rid.SSIDlen));
5925         /* If none, we may want to get the one that was set */
5926 
5927         /* Push it out ! */
5928         dwrq->length = le16_to_cpu(status_rid.SSIDlen);
5929         dwrq->flags = 1; /* active */
5930 
5931         return 0;
5932 }
5933 
5934 /*------------------------------------------------------------------*/
5935 /*
5936  * Wireless Handler : set AP address
5937  */
5938 static int airo_set_wap(struct net_device *dev,
5939                         struct iw_request_info *info,
5940                         struct sockaddr *awrq,
5941                         char *extra)
5942 {
5943         struct airo_info *local = dev->ml_priv;
5944         Cmd cmd;
5945         Resp rsp;
5946         APListRid *APList_rid = &local->APList;
5947 
5948         if (awrq->sa_family != ARPHRD_ETHER)
5949                 return -EINVAL;
5950         else if (is_broadcast_ether_addr(awrq->sa_data) ||
5951                  is_zero_ether_addr(awrq->sa_data)) {
5952                 memset(&cmd, 0, sizeof(cmd));
5953                 cmd.cmd=CMD_LOSE_SYNC;
5954                 if (down_interruptible(&local->sem))
5955                         return -ERESTARTSYS;
5956                 issuecommand(local, &cmd, &rsp);
5957                 up(&local->sem);
5958         } else {
5959                 memset(APList_rid, 0, sizeof(*APList_rid));
5960                 APList_rid->len = cpu_to_le16(sizeof(*APList_rid));
5961                 memcpy(APList_rid->ap[0], awrq->sa_data, ETH_ALEN);
5962                 disable_MAC(local, 1);
5963                 writeAPListRid(local, APList_rid, 1);
5964                 enable_MAC(local, 1);
5965         }
5966         return 0;
5967 }
5968 
5969 /*------------------------------------------------------------------*/
5970 /*
5971  * Wireless Handler : get AP address
5972  */
5973 static int airo_get_wap(struct net_device *dev,
5974                         struct iw_request_info *info,
5975                         struct sockaddr *awrq,
5976                         char *extra)
5977 {
5978         struct airo_info *local = dev->ml_priv;
5979         StatusRid status_rid;           /* Card status info */
5980 
5981         readStatusRid(local, &status_rid, 1);
5982 
5983         /* Tentative. This seems to work, wow, I'm lucky !!! */
5984         memcpy(awrq->sa_data, status_rid.bssid[0], ETH_ALEN);
5985         awrq->sa_family = ARPHRD_ETHER;
5986 
5987         return 0;
5988 }
5989 
5990 /*------------------------------------------------------------------*/
5991 /*
5992  * Wireless Handler : set Nickname
5993  */
5994 static int airo_set_nick(struct net_device *dev,
5995                          struct iw_request_info *info,
5996                          struct iw_point *dwrq,
5997                          char *extra)
5998 {
5999         struct airo_info *local = dev->ml_priv;
6000 
6001         /* Check the size of the string */
6002         if(dwrq->length > 16) {
6003                 return -E2BIG;
6004         }
6005         readConfigRid(local, 1);
6006         memset(local->config.nodeName, 0, sizeof(local->config.nodeName));
6007         memcpy(local->config.nodeName, extra, dwrq->length);
6008         set_bit (FLAG_COMMIT, &local->flags);
6009 
6010         return -EINPROGRESS;            /* Call commit handler */
6011 }
6012 
6013 /*------------------------------------------------------------------*/
6014 /*
6015  * Wireless Handler : get Nickname
6016  */
6017 static int airo_get_nick(struct net_device *dev,
6018                          struct iw_request_info *info,
6019                          struct iw_point *dwrq,
6020                          char *extra)
6021 {
6022         struct airo_info *local = dev->ml_priv;
6023 
6024         readConfigRid(local, 1);
6025         strncpy(extra, local->config.nodeName, 16);
6026         extra[16] = '\0';
6027         dwrq->length = strlen(extra);
6028 
6029         return 0;
6030 }
6031 
6032 /*------------------------------------------------------------------*/
6033 /*
6034  * Wireless Handler : set Bit-Rate
6035  */
6036 static int airo_set_rate(struct net_device *dev,
6037                          struct iw_request_info *info,
6038                          struct iw_param *vwrq,
6039                          char *extra)
6040 {
6041         struct airo_info *local = dev->ml_priv;
6042         CapabilityRid cap_rid;          /* Card capability info */
6043         u8      brate = 0;
6044         int     i;
6045 
6046         /* First : get a valid bit rate value */
6047         readCapabilityRid(local, &cap_rid, 1);
6048 
6049         /* Which type of value ? */
6050         if((vwrq->value < 8) && (vwrq->value >= 0)) {
6051                 /* Setting by rate index */
6052                 /* Find value in the magic rate table */
6053                 brate = cap_rid.supportedRates[vwrq->value];
6054         } else {
6055                 /* Setting by frequency value */
6056                 u8      normvalue = (u8) (vwrq->value/500000);
6057 
6058                 /* Check if rate is valid */
6059                 for(i = 0 ; i < 8 ; i++) {
6060                         if(normvalue == cap_rid.supportedRates[i]) {
6061                                 brate = normvalue;
6062                                 break;
6063                         }
6064                 }
6065         }
6066         /* -1 designed the max rate (mostly auto mode) */
6067         if(vwrq->value == -1) {
6068                 /* Get the highest available rate */
6069                 for(i = 0 ; i < 8 ; i++) {
6070                         if(cap_rid.supportedRates[i] == 0)
6071                                 break;
6072                 }
6073                 if(i != 0)
6074                         brate = cap_rid.supportedRates[i - 1];
6075         }
6076         /* Check that it is valid */
6077         if(brate == 0) {
6078                 return -EINVAL;
6079         }
6080 
6081         readConfigRid(local, 1);
6082         /* Now, check if we want a fixed or auto value */
6083         if(vwrq->fixed == 0) {
6084                 /* Fill all the rates up to this max rate */
6085                 memset(local->config.rates, 0, 8);
6086                 for(i = 0 ; i < 8 ; i++) {
6087                         local->config.rates[i] = cap_rid.supportedRates[i];
6088                         if(local->config.rates[i] == brate)
6089                                 break;
6090                 }
6091         } else {
6092                 /* Fixed mode */
6093                 /* One rate, fixed */
6094                 memset(local->config.rates, 0, 8);
6095                 local->config.rates[0] = brate;
6096         }
6097         set_bit (FLAG_COMMIT, &local->flags);
6098 
6099         return -EINPROGRESS;            /* Call commit handler */
6100 }
6101 
6102 /*------------------------------------------------------------------*/
6103 /*
6104  * Wireless Handler : get Bit-Rate
6105  */
6106 static int airo_get_rate(struct net_device *dev,
6107                          struct iw_request_info *info,
6108                          struct iw_param *vwrq,
6109                          char *extra)
6110 {
6111         struct airo_info *local = dev->ml_priv;
6112         StatusRid status_rid;           /* Card status info */
6113 
6114         readStatusRid(local, &status_rid, 1);
6115 
6116         vwrq->value = le16_to_cpu(status_rid.currentXmitRate) * 500000;
6117         /* If more than one rate, set auto */
6118         readConfigRid(local, 1);
6119         vwrq->fixed = (local->config.rates[1] == 0);
6120 
6121         return 0;
6122 }
6123 
6124 /*------------------------------------------------------------------*/
6125 /*
6126  * Wireless Handler : set RTS threshold
6127  */
6128 static int airo_set_rts(struct net_device *dev,
6129                         struct iw_request_info *info,
6130                         struct iw_param *vwrq,
6131                         char *extra)
6132 {
6133         struct airo_info *local = dev->ml_priv;
6134         int rthr = vwrq->value;
6135 
6136         if(vwrq->disabled)
6137                 rthr = AIRO_DEF_MTU;
6138         if((rthr < 0) || (rthr > AIRO_DEF_MTU)) {
6139                 return -EINVAL;
6140         }
6141         readConfigRid(local, 1);
6142         local->config.rtsThres = cpu_to_le16(rthr);
6143         set_bit (FLAG_COMMIT, &local->flags);
6144 
6145         return -EINPROGRESS;            /* Call commit handler */
6146 }
6147 
6148 /*------------------------------------------------------------------*/
6149 /*
6150  * Wireless Handler : get RTS threshold
6151  */
6152 static int airo_get_rts(struct net_device *dev,
6153                         struct iw_request_info *info,
6154                         struct iw_param *vwrq,
6155                         char *extra)
6156 {
6157         struct airo_info *local = dev->ml_priv;
6158 
6159         readConfigRid(local, 1);
6160         vwrq->value = le16_to_cpu(local->config.rtsThres);
6161         vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU);
6162         vwrq->fixed = 1;
6163 
6164         return 0;
6165 }
6166 
6167 /*------------------------------------------------------------------*/
6168 /*
6169  * Wireless Handler : set Fragmentation threshold
6170  */
6171 static int airo_set_frag(struct net_device *dev,
6172                          struct iw_request_info *info,
6173                          struct iw_param *vwrq,
6174                          char *extra)
6175 {
6176         struct airo_info *local = dev->ml_priv;
6177         int fthr = vwrq->value;
6178 
6179         if(vwrq->disabled)
6180                 fthr = AIRO_DEF_MTU;
6181         if((fthr < 256) || (fthr > AIRO_DEF_MTU)) {
6182                 return -EINVAL;
6183         }
6184         fthr &= ~0x1;   /* Get an even value - is it really needed ??? */
6185         readConfigRid(local, 1);
6186         local->config.fragThresh = cpu_to_le16(fthr);
6187         set_bit (FLAG_COMMIT, &local->flags);
6188 
6189         return -EINPROGRESS;            /* Call commit handler */
6190 }
6191 
6192 /*------------------------------------------------------------------*/
6193 /*
6194  * Wireless Handler : get Fragmentation threshold
6195  */
6196 static int airo_get_frag(struct net_device *dev,
6197                          struct iw_request_info *info,
6198                          struct iw_param *vwrq,
6199                          char *extra)
6200 {
6201         struct airo_info *local = dev->ml_priv;
6202 
6203         readConfigRid(local, 1);
6204         vwrq->value = le16_to_cpu(local->config.fragThresh);
6205         vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU);
6206         vwrq->fixed = 1;
6207 
6208         return 0;
6209 }
6210 
6211 /*------------------------------------------------------------------*/
6212 /*
6213  * Wireless Handler : set Mode of Operation
6214  */
6215 static int airo_set_mode(struct net_device *dev,
6216                          struct iw_request_info *info,
6217                          __u32 *uwrq,
6218                          char *extra)
6219 {
6220         struct airo_info *local = dev->ml_priv;
6221         int reset = 0;
6222 
6223         readConfigRid(local, 1);
6224         if (sniffing_mode(local))
6225                 reset = 1;
6226 
6227         switch(*uwrq) {
6228                 case IW_MODE_ADHOC:
6229                         local->config.opmode &= ~MODE_CFG_MASK;
6230                         local->config.opmode |= MODE_STA_IBSS;
6231                         local->config.rmode &= ~RXMODE_FULL_MASK;
6232                         local->config.scanMode = SCANMODE_ACTIVE;
6233                         clear_bit (FLAG_802_11, &local->flags);
6234                         break;
6235                 case IW_MODE_INFRA:
6236                         local->config.opmode &= ~MODE_CFG_MASK;
6237                         local->config.opmode |= MODE_STA_ESS;
6238                         local->config.rmode &= ~RXMODE_FULL_MASK;
6239                         local->config.scanMode = SCANMODE_ACTIVE;
6240                         clear_bit (FLAG_802_11, &local->flags);
6241                         break;
6242                 case IW_MODE_MASTER:
6243                         local->config.opmode &= ~MODE_CFG_MASK;
6244                         local->config.opmode |= MODE_AP;
6245                         local->config.rmode &= ~RXMODE_FULL_MASK;
6246                         local->config.scanMode = SCANMODE_ACTIVE;
6247                         clear_bit (FLAG_802_11, &local->flags);
6248                         break;
6249                 case IW_MODE_REPEAT:
6250                         local->config.opmode &= ~MODE_CFG_MASK;
6251                         local->config.opmode |= MODE_AP_RPTR;
6252                         local->config.rmode &= ~RXMODE_FULL_MASK;
6253                         local->config.scanMode = SCANMODE_ACTIVE;
6254                         clear_bit (FLAG_802_11, &local->flags);
6255                         break;
6256                 case IW_MODE_MONITOR:
6257                         local->config.opmode &= ~MODE_CFG_MASK;
6258                         local->config.opmode |= MODE_STA_ESS;
6259                         local->config.rmode &= ~RXMODE_FULL_MASK;
6260                         local->config.rmode |= RXMODE_RFMON | RXMODE_DISABLE_802_3_HEADER;
6261                         local->config.scanMode = SCANMODE_PASSIVE;
6262                         set_bit (FLAG_802_11, &local->flags);
6263                         break;
6264                 default:
6265                         return -EINVAL;
6266         }
6267         if (reset)
6268                 set_bit (FLAG_RESET, &local->flags);
6269         set_bit (FLAG_COMMIT, &local->flags);
6270 
6271         return -EINPROGRESS;            /* Call commit handler */
6272 }
6273 
6274 /*------------------------------------------------------------------*/
6275 /*
6276  * Wireless Handler : get Mode of Operation
6277  */
6278 static int airo_get_mode(struct net_device *dev,
6279                          struct iw_request_info *info,
6280                          __u32 *uwrq,
6281                          char *extra)
6282 {
6283         struct airo_info *local = dev->ml_priv;
6284 
6285         readConfigRid(local, 1);
6286         /* If not managed, assume it's ad-hoc */
6287         switch (local->config.opmode & MODE_CFG_MASK) {
6288                 case MODE_STA_ESS:
6289                         *uwrq = IW_MODE_INFRA;
6290                         break;
6291                 case MODE_AP:
6292                         *uwrq = IW_MODE_MASTER;
6293                         break;
6294                 case MODE_AP_RPTR:
6295                         *uwrq = IW_MODE_REPEAT;
6296                         break;
6297                 default:
6298                         *uwrq = IW_MODE_ADHOC;
6299         }
6300 
6301         return 0;
6302 }
6303 
6304 static inline int valid_index(struct airo_info *ai, int index)
6305 {
6306         return (index >= 0) && (index <= ai->max_wep_idx);
6307 }
6308 
6309 /*------------------------------------------------------------------*/
6310 /*
6311  * Wireless Handler : set Encryption Key
6312  */
6313 static int airo_set_encode(struct net_device *dev,
6314                            struct iw_request_info *info,
6315                            struct iw_point *dwrq,
6316                            char *extra)
6317 {
6318         struct airo_info *local = dev->ml_priv;
6319         int perm = (dwrq->flags & IW_ENCODE_TEMP ? 0 : 1);
6320         __le16 currentAuthType = local->config.authType;
6321         int rc = 0;
6322 
6323         if (!local->wep_capable)
6324                 return -EOPNOTSUPP;
6325 
6326         readConfigRid(local, 1);
6327 
6328         /* Basic checking: do we have a key to set ?
6329          * Note : with the new API, it's impossible to get a NULL pointer.
6330          * Therefore, we need to check a key size == 0 instead.
6331          * New version of iwconfig properly set the IW_ENCODE_NOKEY flag
6332          * when no key is present (only change flags), but older versions
6333          * don't do it. - Jean II */
6334         if (dwrq->length > 0) {
6335                 wep_key_t key;
6336                 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6337                 int current_index;
6338 
6339                 /* Check the size of the key */
6340                 if (dwrq->length > MAX_KEY_SIZE) {
6341                         return -EINVAL;
6342                 }
6343 
6344                 current_index = get_wep_tx_idx(local);
6345                 if (current_index < 0)
6346                         current_index = 0;
6347 
6348                 /* Check the index (none -> use current) */
6349                 if (!valid_index(local, index))
6350                         index = current_index;
6351 
6352                 /* Set the length */
6353                 if (dwrq->length > MIN_KEY_SIZE)
6354                         key.len = MAX_KEY_SIZE;
6355                 else
6356                         key.len = MIN_KEY_SIZE;
6357                 /* Check if the key is not marked as invalid */
6358                 if(!(dwrq->flags & IW_ENCODE_NOKEY)) {
6359                         /* Cleanup */
6360                         memset(key.key, 0, MAX_KEY_SIZE);
6361                         /* Copy the key in the driver */
6362                         memcpy(key.key, extra, dwrq->length);
6363                         /* Send the key to the card */
6364                         rc = set_wep_key(local, index, key.key, key.len, perm, 1);
6365                         if (rc < 0) {
6366                                 airo_print_err(local->dev->name, "failed to set"
6367                                                " WEP key at index %d: %d.",
6368                                                index, rc);
6369                                 return rc;
6370                         }
6371                 }
6372                 /* WE specify that if a valid key is set, encryption
6373                  * should be enabled (user may turn it off later)
6374                  * This is also how "iwconfig ethX key on" works */
6375                 if((index == current_index) && (key.len > 0) &&
6376                    (local->config.authType == AUTH_OPEN))
6377                         set_auth_type(local, AUTH_ENCRYPT);
6378         } else {
6379                 /* Do we want to just set the transmit key index ? */
6380                 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6381                 if (valid_index(local, index)) {
6382                         rc = set_wep_tx_idx(local, index, perm, 1);
6383                         if (rc < 0) {
6384                                 airo_print_err(local->dev->name, "failed to set"
6385                                                " WEP transmit index to %d: %d.",
6386                                                index, rc);
6387                                 return rc;
6388                         }
6389                 } else {
6390                         /* Don't complain if only change the mode */
6391                         if (!(dwrq->flags & IW_ENCODE_MODE))
6392                                 return -EINVAL;
6393                 }
6394         }
6395         /* Read the flags */
6396         if (dwrq->flags & IW_ENCODE_DISABLED)
6397                 set_auth_type(local, AUTH_OPEN);        /* disable encryption */
6398         if(dwrq->flags & IW_ENCODE_RESTRICTED)
6399                 set_auth_type(local, AUTH_SHAREDKEY);   /* Only Both */
6400         if (dwrq->flags & IW_ENCODE_OPEN)
6401                 set_auth_type(local, AUTH_ENCRYPT);     /* Only Wep */
6402         /* Commit the changes to flags if needed */
6403         if (local->config.authType != currentAuthType)
6404                 set_bit (FLAG_COMMIT, &local->flags);
6405         return -EINPROGRESS;            /* Call commit handler */
6406 }
6407 
6408 /*------------------------------------------------------------------*/
6409 /*
6410  * Wireless Handler : get Encryption Key
6411  */
6412 static int airo_get_encode(struct net_device *dev,
6413                            struct iw_request_info *info,
6414                            struct iw_point *dwrq,
6415                            char *extra)
6416 {
6417         struct airo_info *local = dev->ml_priv;
6418         int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6419         int wep_key_len;
6420         u8 buf[16];
6421 
6422         if (!local->wep_capable)
6423                 return -EOPNOTSUPP;
6424 
6425         readConfigRid(local, 1);
6426 
6427         /* Check encryption mode */
6428         switch(local->config.authType)  {
6429                 case AUTH_ENCRYPT:
6430                         dwrq->flags = IW_ENCODE_OPEN;
6431                         break;
6432                 case AUTH_SHAREDKEY:
6433                         dwrq->flags = IW_ENCODE_RESTRICTED;
6434                         break;
6435                 default:
6436                 case AUTH_OPEN:
6437                         dwrq->flags = IW_ENCODE_DISABLED;
6438                         break;
6439         }
6440         /* We can't return the key, so set the proper flag and return zero */
6441         dwrq->flags |= IW_ENCODE_NOKEY;
6442         memset(extra, 0, 16);
6443 
6444         /* Which key do we want ? -1 -> tx index */
6445         if (!valid_index(local, index)) {
6446                 index = get_wep_tx_idx(local);
6447                 if (index < 0)
6448                         index = 0;
6449         }
6450         dwrq->flags |= index + 1;
6451 
6452         /* Copy the key to the user buffer */
6453         wep_key_len = get_wep_key(local, index, &buf[0], sizeof(buf));
6454         if (wep_key_len < 0) {
6455                 dwrq->length = 0;
6456         } else {
6457                 dwrq->length = wep_key_len;
6458                 memcpy(extra, buf, dwrq->length);
6459         }
6460 
6461         return 0;
6462 }
6463 
6464 /*------------------------------------------------------------------*/
6465 /*
6466  * Wireless Handler : set extended Encryption parameters
6467  */
6468 static int airo_set_encodeext(struct net_device *dev,
6469                            struct iw_request_info *info,
6470                             union iwreq_data *wrqu,
6471                             char *extra)
6472 {
6473         struct airo_info *local = dev->ml_priv;
6474         struct iw_point *encoding = &wrqu->encoding;
6475         struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6476         int perm = ( encoding->flags & IW_ENCODE_TEMP ? 0 : 1 );
6477         __le16 currentAuthType = local->config.authType;
6478         int idx, key_len, alg = ext->alg, set_key = 1, rc;
6479         wep_key_t key;
6480 
6481         if (!local->wep_capable)
6482                 return -EOPNOTSUPP;
6483 
6484         readConfigRid(local, 1);
6485 
6486         /* Determine and validate the key index */
6487         idx = encoding->flags & IW_ENCODE_INDEX;
6488         if (idx) {
6489                 if (!valid_index(local, idx - 1))
6490                         return -EINVAL;
6491                 idx--;
6492         } else {
6493                 idx = get_wep_tx_idx(local);
6494                 if (idx < 0)
6495                         idx = 0;
6496         }
6497 
6498         if (encoding->flags & IW_ENCODE_DISABLED)
6499                 alg = IW_ENCODE_ALG_NONE;
6500 
6501         if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
6502                 /* Only set transmit key index here, actual
6503                  * key is set below if needed.
6504                  */
6505                 rc = set_wep_tx_idx(local, idx, perm, 1);
6506                 if (rc < 0) {
6507                         airo_print_err(local->dev->name, "failed to set "
6508                                        "WEP transmit index to %d: %d.",
6509                                        idx, rc);
6510                         return rc;
6511                 }
6512                 set_key = ext->key_len > 0 ? 1 : 0;
6513         }
6514 
6515         if (set_key) {
6516                 /* Set the requested key first */
6517                 memset(key.key, 0, MAX_KEY_SIZE);
6518                 switch (alg) {
6519                 case IW_ENCODE_ALG_NONE:
6520                         key.len = 0;
6521                         break;
6522                 case IW_ENCODE_ALG_WEP:
6523                         if (ext->key_len > MIN_KEY_SIZE) {
6524                                 key.len = MAX_KEY_SIZE;
6525                         } else if (ext->key_len > 0) {
6526                                 key.len = MIN_KEY_SIZE;
6527                         } else {
6528                                 return -EINVAL;
6529                         }
6530                         key_len = min (ext->key_len, key.len);
6531                         memcpy(key.key, ext->key, key_len);
6532                         break;
6533                 default:
6534                         return -EINVAL;
6535                 }
6536                 if (key.len == 0) {
6537                         rc = set_wep_tx_idx(local, idx, perm, 1);
6538                         if (rc < 0) {
6539                                 airo_print_err(local->dev->name,
6540                                                "failed to set WEP transmit index to %d: %d.",
6541                                                idx, rc);
6542                                 return rc;
6543                         }
6544                 } else {
6545                         rc = set_wep_key(local, idx, key.key, key.len, perm, 1);
6546                         if (rc < 0) {
6547                                 airo_print_err(local->dev->name,
6548                                                "failed to set WEP key at index %d: %d.",
6549                                                idx, rc);
6550                                 return rc;
6551                         }
6552                 }
6553         }
6554 
6555         /* Read the flags */
6556         if (encoding->flags & IW_ENCODE_DISABLED)
6557                 set_auth_type(local, AUTH_OPEN);        /* disable encryption */
6558         if(encoding->flags & IW_ENCODE_RESTRICTED)
6559                 set_auth_type(local, AUTH_SHAREDKEY);   /* Only Both */
6560         if (encoding->flags & IW_ENCODE_OPEN)
6561                 set_auth_type(local, AUTH_ENCRYPT);
6562         /* Commit the changes to flags if needed */
6563         if (local->config.authType != currentAuthType)
6564                 set_bit (FLAG_COMMIT, &local->flags);
6565 
6566         return -EINPROGRESS;
6567 }
6568 
6569 
6570 /*------------------------------------------------------------------*/
6571 /*
6572  * Wireless Handler : get extended Encryption parameters
6573  */
6574 static int airo_get_encodeext(struct net_device *dev,
6575                             struct iw_request_info *info,
6576                             union iwreq_data *wrqu,
6577                             char *extra)
6578 {
6579         struct airo_info *local = dev->ml_priv;
6580         struct iw_point *encoding = &wrqu->encoding;
6581         struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6582         int idx, max_key_len, wep_key_len;
6583         u8 buf[16];
6584 
6585         if (!local->wep_capable)
6586                 return -EOPNOTSUPP;
6587 
6588         readConfigRid(local, 1);
6589 
6590         max_key_len = encoding->length - sizeof(*ext);
6591         if (max_key_len < 0)
6592                 return -EINVAL;
6593 
6594         idx = encoding->flags & IW_ENCODE_INDEX;
6595         if (idx) {
6596                 if (!valid_index(local, idx - 1))
6597                         return -EINVAL;
6598                 idx--;
6599         } else {
6600                 idx = get_wep_tx_idx(local);
6601                 if (idx < 0)
6602                         idx = 0;
6603         }
6604 
6605         encoding->flags = idx + 1;
6606         memset(ext, 0, sizeof(*ext));
6607 
6608         /* Check encryption mode */
6609         switch(local->config.authType) {
6610                 case AUTH_ENCRYPT:
6611                         encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED;
6612                         break;
6613                 case AUTH_SHAREDKEY:
6614                         encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED;
6615                         break;
6616                 default:
6617                 case AUTH_OPEN:
6618                         encoding->flags = IW_ENCODE_ALG_NONE | IW_ENCODE_DISABLED;
6619                         break;
6620         }
6621         /* We can't return the key, so set the proper flag and return zero */
6622         encoding->flags |= IW_ENCODE_NOKEY;
6623         memset(extra, 0, 16);
6624         
6625         /* Copy the key to the user buffer */
6626         wep_key_len = get_wep_key(local, idx, &buf[0], sizeof(buf));
6627         if (wep_key_len < 0) {
6628                 ext->key_len = 0;
6629         } else {
6630                 ext->key_len = wep_key_len;
6631                 memcpy(extra, buf, ext->key_len);
6632         }
6633 
6634         return 0;
6635 }
6636 
6637 
6638 /*------------------------------------------------------------------*/
6639 /*
6640  * Wireless Handler : set extended authentication parameters
6641  */
6642 static int airo_set_auth(struct net_device *dev,
6643                                struct iw_request_info *info,
6644                                union iwreq_data *wrqu, char *extra)
6645 {
6646         struct airo_info *local = dev->ml_priv;
6647         struct iw_param *param = &wrqu->param;
6648         __le16 currentAuthType = local->config.authType;
6649 
6650         switch (param->flags & IW_AUTH_INDEX) {
6651         case IW_AUTH_WPA_VERSION:
6652         case IW_AUTH_CIPHER_PAIRWISE:
6653         case IW_AUTH_CIPHER_GROUP:
6654         case IW_AUTH_KEY_MGMT:
6655         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6656         case IW_AUTH_PRIVACY_INVOKED:
6657                 /*
6658                  * airo does not use these parameters
6659                  */
6660                 break;
6661 
6662         case IW_AUTH_DROP_UNENCRYPTED:
6663                 if (param->value) {
6664                         /* Only change auth type if unencrypted */
6665                         if (currentAuthType == AUTH_OPEN)
6666                                 set_auth_type(local, AUTH_ENCRYPT);
6667                 } else {
6668                         set_auth_type(local, AUTH_OPEN);
6669                 }
6670 
6671                 /* Commit the changes to flags if needed */
6672                 if (local->config.authType != currentAuthType)
6673                         set_bit (FLAG_COMMIT, &local->flags);
6674                 break;
6675 
6676         case IW_AUTH_80211_AUTH_ALG: {
6677                         if (param->value & IW_AUTH_ALG_SHARED_KEY) {
6678                                 set_auth_type(local, AUTH_SHAREDKEY);
6679                         } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
6680                                 /* We don't know here if WEP open system or
6681                                  * unencrypted mode was requested - so use the
6682                                  * last mode (of these two) used last time
6683                                  */
6684                                 set_auth_type(local, local->last_auth);
6685                         } else
6686                                 return -EINVAL;
6687 
6688                         /* Commit the changes to flags if needed */
6689                         if (local->config.authType != currentAuthType)
6690                                 set_bit (FLAG_COMMIT, &local->flags);
6691                         break;
6692                 }
6693 
6694         case IW_AUTH_WPA_ENABLED:
6695                 /* Silently accept disable of WPA */
6696                 if (param->value > 0)
6697                         return -EOPNOTSUPP;
6698                 break;
6699 
6700         default:
6701                 return -EOPNOTSUPP;
6702         }
6703         return -EINPROGRESS;
6704 }
6705 
6706 
6707 /*------------------------------------------------------------------*/
6708 /*
6709  * Wireless Handler : get extended authentication parameters
6710  */
6711 static int airo_get_auth(struct net_device *dev,
6712                                struct iw_request_info *info,
6713                                union iwreq_data *wrqu, char *extra)
6714 {
6715         struct airo_info *local = dev->ml_priv;
6716         struct iw_param *param = &wrqu->param;
6717         __le16 currentAuthType = local->config.authType;
6718 
6719         switch (param->flags & IW_AUTH_INDEX) {
6720         case IW_AUTH_DROP_UNENCRYPTED:
6721                 switch (currentAuthType) {
6722                 case AUTH_SHAREDKEY:
6723                 case AUTH_ENCRYPT:
6724                         param->value = 1;
6725                         break;
6726                 default:
6727                         param->value = 0;
6728                         break;
6729                 }
6730                 break;
6731 
6732         case IW_AUTH_80211_AUTH_ALG:
6733                 switch (currentAuthType) {
6734                 case AUTH_SHAREDKEY:
6735                         param->value = IW_AUTH_ALG_SHARED_KEY;
6736                         break;
6737                 case AUTH_ENCRYPT:
6738                 default:
6739                         param->value = IW_AUTH_ALG_OPEN_SYSTEM;
6740                         break;
6741                 }
6742                 break;
6743 
6744         case IW_AUTH_WPA_ENABLED:
6745                 param->value = 0;
6746                 break;
6747 
6748         default:
6749                 return -EOPNOTSUPP;
6750         }
6751         return 0;
6752 }
6753 
6754 
6755 /*------------------------------------------------------------------*/
6756 /*
6757  * Wireless Handler : set Tx-Power
6758  */
6759 static int airo_set_txpow(struct net_device *dev,
6760                           struct iw_request_info *info,
6761                           struct iw_param *vwrq,
6762                           char *extra)
6763 {
6764         struct airo_info *local = dev->ml_priv;
6765         CapabilityRid cap_rid;          /* Card capability info */
6766         int i;
6767         int rc = -EINVAL;
6768         __le16 v = cpu_to_le16(vwrq->value);
6769 
6770         readCapabilityRid(local, &cap_rid, 1);
6771 
6772         if (vwrq->disabled) {
6773                 set_bit (FLAG_RADIO_OFF, &local->flags);
6774                 set_bit (FLAG_COMMIT, &local->flags);
6775                 return -EINPROGRESS;            /* Call commit handler */
6776         }
6777         if (vwrq->flags != IW_TXPOW_MWATT) {
6778                 return -EINVAL;
6779         }
6780         clear_bit (FLAG_RADIO_OFF, &local->flags);
6781         for (i = 0; i < 8 && cap_rid.txPowerLevels[i]; i++)
6782                 if (v == cap_rid.txPowerLevels[i]) {
6783                         readConfigRid(local, 1);
6784                         local->config.txPower = v;
6785                         set_bit (FLAG_COMMIT, &local->flags);
6786                         rc = -EINPROGRESS;      /* Call commit handler */
6787                         break;
6788                 }
6789         return rc;
6790 }
6791 
6792 /*------------------------------------------------------------------*/
6793 /*
6794  * Wireless Handler : get Tx-Power
6795  */
6796 static int airo_get_txpow(struct net_device *dev,
6797                           struct iw_request_info *info,
6798                           struct iw_param *vwrq,
6799                           char *extra)
6800 {
6801         struct airo_info *local = dev->ml_priv;
6802 
6803         readConfigRid(local, 1);
6804         vwrq->value = le16_to_cpu(local->config.txPower);
6805         vwrq->fixed = 1;        /* No power control */
6806         vwrq->disabled = test_bit(FLAG_RADIO_OFF, &local->flags);
6807         vwrq->flags = IW_TXPOW_MWATT;
6808 
6809         return 0;
6810 }
6811 
6812 /*------------------------------------------------------------------*/
6813 /*
6814  * Wireless Handler : set Retry limits
6815  */
6816 static int airo_set_retry(struct net_device *dev,
6817                           struct iw_request_info *info,
6818                           struct iw_param *vwrq,
6819                           char *extra)
6820 {
6821         struct airo_info *local = dev->ml_priv;
6822         int rc = -EINVAL;
6823 
6824         if(vwrq->disabled) {
6825                 return -EINVAL;
6826         }
6827         readConfigRid(local, 1);
6828         if(vwrq->flags & IW_RETRY_LIMIT) {
6829                 __le16 v = cpu_to_le16(vwrq->value);
6830                 if(vwrq->flags & IW_RETRY_LONG)
6831                         local->config.longRetryLimit = v;
6832                 else if (vwrq->flags & IW_RETRY_SHORT)
6833                         local->config.shortRetryLimit = v;
6834                 else {
6835                         /* No modifier : set both */
6836                         local->config.longRetryLimit = v;
6837                         local->config.shortRetryLimit = v;
6838                 }
6839                 set_bit (FLAG_COMMIT, &local->flags);
6840                 rc = -EINPROGRESS;              /* Call commit handler */
6841         }
6842         if(vwrq->flags & IW_RETRY_LIFETIME) {
6843                 local->config.txLifetime = cpu_to_le16(vwrq->value / 1024);
6844                 set_bit (FLAG_COMMIT, &local->flags);
6845                 rc = -EINPROGRESS;              /* Call commit handler */
6846         }
6847         return rc;
6848 }
6849 
6850 /*------------------------------------------------------------------*/
6851 /*
6852  * Wireless Handler : get Retry limits
6853  */
6854 static int airo_get_retry(struct net_device *dev,
6855                           struct iw_request_info *info,
6856                           struct iw_param *vwrq,
6857                           char *extra)
6858 {
6859         struct airo_info *local = dev->ml_priv;
6860 
6861         vwrq->disabled = 0;      /* Can't be disabled */
6862 
6863         readConfigRid(local, 1);
6864         /* Note : by default, display the min retry number */
6865         if((vwrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
6866                 vwrq->flags = IW_RETRY_LIFETIME;
6867                 vwrq->value = le16_to_cpu(local->config.txLifetime) * 1024;
6868         } else if((vwrq->flags & IW_RETRY_LONG)) {
6869                 vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
6870                 vwrq->value = le16_to_cpu(local->config.longRetryLimit);
6871         } else {
6872                 vwrq->flags = IW_RETRY_LIMIT;
6873                 vwrq->value = le16_to_cpu(local->config.shortRetryLimit);
6874                 if(local->config.shortRetryLimit != local->config.longRetryLimit)
6875                         vwrq->flags |= IW_RETRY_SHORT;
6876         }
6877 
6878         return 0;
6879 }
6880 
6881 /*------------------------------------------------------------------*/
6882 /*
6883  * Wireless Handler : get range info
6884  */
6885 static int airo_get_range(struct net_device *dev,
6886                           struct iw_request_info *info,
6887                           struct iw_point *dwrq,
6888                           char *extra)
6889 {
6890         struct airo_info *local = dev->ml_priv;
6891         struct iw_range *range = (struct iw_range *) extra;
6892         CapabilityRid cap_rid;          /* Card capability info */
6893         int             i;
6894         int             k;
6895 
6896         readCapabilityRid(local, &cap_rid, 1);
6897 
6898         dwrq->length = sizeof(struct iw_range);
6899         memset(range, 0, sizeof(*range));
6900         range->min_nwid = 0x0000;
6901         range->max_nwid = 0x0000;
6902         range->num_channels = 14;
6903         /* Should be based on cap_rid.country to give only
6904          * what the current card support */
6905         k = 0;
6906         for(i = 0; i < 14; i++) {
6907                 range->freq[k].i = i + 1; /* List index */
6908                 range->freq[k].m = 100000 *
6909                      ieee80211_channel_to_frequency(i + 1, IEEE80211_BAND_2GHZ);
6910                 range->freq[k++].e = 1; /* Values in MHz -> * 10^5 * 10 */
6911         }
6912         range->num_frequency = k;
6913 
6914         range->sensitivity = 65535;
6915 
6916         /* Hum... Should put the right values there */
6917         if (local->rssi)
6918                 range->max_qual.qual = 100;     /* % */
6919         else
6920                 range->max_qual.qual = airo_get_max_quality(&cap_rid);
6921         range->max_qual.level = 0x100 - 120;    /* -120 dBm */
6922         range->max_qual.noise = 0x100 - 120;    /* -120 dBm */
6923 
6924         /* Experimental measurements - boundary 11/5.5 Mb/s */
6925         /* Note : with or without the (local->rssi), results
6926          * are somewhat different. - Jean II */
6927         if (local->rssi) {
6928                 range->avg_qual.qual = 50;              /* % */
6929                 range->avg_qual.level = 0x100 - 70;     /* -70 dBm */
6930         } else {
6931                 range->avg_qual.qual = airo_get_avg_quality(&cap_rid);
6932                 range->avg_qual.level = 0x100 - 80;     /* -80 dBm */
6933         }
6934         range->avg_qual.noise = 0x100 - 85;             /* -85 dBm */
6935 
6936         for(i = 0 ; i < 8 ; i++) {
6937                 range->bitrate[i] = cap_rid.supportedRates[i] * 500000;
6938                 if(range->bitrate[i] == 0)
6939                         break;
6940         }
6941         range->num_bitrates = i;
6942 
6943         /* Set an indication of the max TCP throughput
6944          * in bit/s that we can expect using this interface.
6945          * May be use for QoS stuff... Jean II */
6946         if(i > 2)
6947                 range->throughput = 5000 * 1000;
6948         else
6949                 range->throughput = 1500 * 1000;
6950 
6951         range->min_rts = 0;
6952         range->max_rts = AIRO_DEF_MTU;
6953         range->min_frag = 256;
6954         range->max_frag = AIRO_DEF_MTU;
6955 
6956         if(cap_rid.softCap & cpu_to_le16(2)) {
6957                 // WEP: RC4 40 bits
6958                 range->encoding_size[0] = 5;
6959                 // RC4 ~128 bits
6960                 if (cap_rid.softCap & cpu_to_le16(0x100)) {
6961                         range->encoding_size[1] = 13;
6962                         range->num_encoding_sizes = 2;
6963                 } else
6964                         range->num_encoding_sizes = 1;
6965                 range->max_encoding_tokens =
6966                         cap_rid.softCap & cpu_to_le16(0x80) ? 4 : 1;
6967         } else {
6968                 range->num_encoding_sizes = 0;
6969                 range->max_encoding_tokens = 0;
6970         }
6971         range->min_pmp = 0;
6972         range->max_pmp = 5000000;       /* 5 secs */
6973         range->min_pmt = 0;
6974         range->max_pmt = 65535 * 1024;  /* ??? */
6975         range->pmp_flags = IW_POWER_PERIOD;
6976         range->pmt_flags = IW_POWER_TIMEOUT;
6977         range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R;
6978 
6979         /* Transmit Power - values are in mW */
6980         for(i = 0 ; i < 8 ; i++) {
6981                 range->txpower[i] = le16_to_cpu(cap_rid.txPowerLevels[i]);
6982                 if(range->txpower[i] == 0)
6983                         break;
6984         }
6985         range->num_txpower = i;
6986         range->txpower_capa = IW_TXPOW_MWATT;
6987         range->we_version_source = 19;
6988         range->we_version_compiled = WIRELESS_EXT;
6989         range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
6990         range->retry_flags = IW_RETRY_LIMIT;
6991         range->r_time_flags = IW_RETRY_LIFETIME;
6992         range->min_retry = 1;
6993         range->max_retry = 65535;
6994         range->min_r_time = 1024;
6995         range->max_r_time = 65535 * 1024;
6996 
6997         /* Event capability (kernel + driver) */
6998         range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
6999                                 IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) |
7000                                 IW_EVENT_CAPA_MASK(SIOCGIWAP) |
7001                                 IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
7002         range->event_capa[1] = IW_EVENT_CAPA_K_1;
7003         range->event_capa[4] = IW_EVENT_CAPA_MASK(IWEVTXDROP);
7004         return 0;
7005 }
7006 
7007 /*------------------------------------------------------------------*/
7008 /*
7009  * Wireless Handler : set Power Management
7010  */
7011 static int airo_set_power(struct net_device *dev,
7012                           struct iw_request_info *info,
7013                           struct iw_param *vwrq,
7014                           char *extra)
7015 {
7016         struct airo_info *local = dev->ml_priv;
7017 
7018         readConfigRid(local, 1);
7019         if (vwrq->disabled) {
7020                 if (sniffing_mode(local))
7021                         return -EINVAL;
7022                 local->config.powerSaveMode = POWERSAVE_CAM;
7023                 local->config.rmode &= ~RXMODE_MASK;
7024                 local->config.rmode |= RXMODE_BC_MC_ADDR;
7025                 set_bit (FLAG_COMMIT, &local->flags);
7026                 return -EINPROGRESS;            /* Call commit handler */
7027         }
7028         if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
7029                 local->config.fastListenDelay = cpu_to_le16((vwrq->value + 500) / 1024);
7030                 local->config.powerSaveMode = POWERSAVE_PSPCAM;
7031                 set_bit (FLAG_COMMIT, &local->flags);
7032         } else if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_PERIOD) {
7033                 local->config.fastListenInterval =
7034                 local->config.listenInterval =
7035                         cpu_to_le16((vwrq->value + 500) / 1024);
7036                 local->config.powerSaveMode = POWERSAVE_PSPCAM;
7037                 set_bit (FLAG_COMMIT, &local->flags);
7038         }
7039         switch (vwrq->flags & IW_POWER_MODE) {
7040                 case IW_POWER_UNICAST_R:
7041                         if (sniffing_mode(local))
7042                                 return -EINVAL;
7043                         local->config.rmode &= ~RXMODE_MASK;
7044                         local->config.rmode |= RXMODE_ADDR;
7045                         set_bit (FLAG_COMMIT, &local->flags);
7046                         break;
7047                 case IW_POWER_ALL_R:
7048                         if (sniffing_mode(local))
7049                                 return -EINVAL;
7050                         local->config.rmode &= ~RXMODE_MASK;
7051                         local->config.rmode |= RXMODE_BC_MC_ADDR;
7052                         set_bit (