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_hw_array(io, int, ioport, NULL, 0);
250 module_param_hw_array(irq, int, irq, 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 reg, u16 value );
1106 static unsigned short IN4500( struct airo_info *, u16 reg );
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
bap_read(struct airo_info * ai,__le16 * pu16Dst,int bytelen,int whichbap)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
age_mic_context(miccntx * cur,miccntx * old,u8 * key,int key_len,struct crypto_cipher * tfm)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
micinit(struct airo_info * ai)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
micsetup(struct airo_info * ai)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
encapsulate(struct airo_info * ai,etherHead * frame,MICBuffer * mic,int payLen)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
decapsulate(struct airo_info * ai,MICBuffer * mic,etherHead * eth,u16 payLen)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
RxSeqValid(struct airo_info * ai,miccntx * context,int mcast,u32 micSeq)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
MoveWindow(miccntx * context,u32 micSeq)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 */
emmh32_setseed(emmh32_context * context,u8 * pkey,int keylen,struct crypto_cipher * tfm)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 */
emmh32_init(emmh32_context * context)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 */
emmh32_update(emmh32_context * context,u8 * pOctets,int len)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 */
emmh32_final(emmh32_context * context,u8 digest[4])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
readBSSListRid(struct airo_info * ai,int first,BSSListRid * list)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
readWepKeyRid(struct airo_info * ai,WepKeyRid * wkr,int temp,int lock)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
writeWepKeyRid(struct airo_info * ai,WepKeyRid * wkr,int perm,int lock)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
readSsidRid(struct airo_info * ai,SsidRid * ssidr)1787 static int readSsidRid(struct airo_info*ai, SsidRid *ssidr)
1788 {
1789 return PC4500_readrid(ai, RID_SSID, ssidr, sizeof(*ssidr), 1);
1790 }
1791
writeSsidRid(struct airo_info * ai,SsidRid * pssidr,int lock)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
readConfigRid(struct airo_info * ai,int lock)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
checkThrottle(struct airo_info * ai)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
writeConfigRid(struct airo_info * ai,int lock)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
readStatusRid(struct airo_info * ai,StatusRid * statr,int lock)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
writeAPListRid(struct airo_info * ai,APListRid * aplr,int lock)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
readCapabilityRid(struct airo_info * ai,CapabilityRid * capr,int lock)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
readStatsRid(struct airo_info * ai,StatsRid * sr,int rid,int lock)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
try_auto_wep(struct airo_info * ai)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
airo_open(struct net_device * dev)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
mpi_start_xmit(struct sk_buff * skb,struct net_device * dev)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
mpi_send_packet(struct net_device * dev)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 netif_trans_update(dev);
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
get_tx_error(struct airo_info * ai,s32 fid)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
airo_end_xmit(struct net_device * dev)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 netif_trans_update(dev);
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
airo_start_xmit(struct sk_buff * skb,struct net_device * dev)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
airo_end_xmit11(struct net_device * dev)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 netif_trans_update(dev);
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
airo_start_xmit11(struct sk_buff * skb,struct net_device * dev)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
airo_read_stats(struct net_device * dev)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
airo_get_stats(struct net_device * dev)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
airo_set_promisc(struct airo_info * ai)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
airo_set_multicast_list(struct net_device * dev)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
airo_set_mac_address(struct net_device * dev,void * p)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 LIST_HEAD(airo_devices);
2333
add_airo_dev(struct airo_info * ai)2334 static void add_airo_dev(struct airo_info *ai)
2335 {
2336 /* Upper layers already keep track of PCI devices,
2337 * so we only need to remember our non-PCI cards. */
2338 if (!ai->pci)
2339 list_add_tail(&ai->dev_list, &airo_devices);
2340 }
2341
del_airo_dev(struct airo_info * ai)2342 static void del_airo_dev(struct airo_info *ai)
2343 {
2344 if (!ai->pci)
2345 list_del(&ai->dev_list);
2346 }
2347
airo_close(struct net_device * dev)2348 static int airo_close(struct net_device *dev) {
2349 struct airo_info *ai = dev->ml_priv;
2350
2351 netif_stop_queue(dev);
2352
2353 if (ai->wifidev != dev) {
2354 #ifdef POWER_ON_DOWN
2355 /* Shut power to the card. The idea is that the user can save
2356 * power when he doesn't need the card with "ifconfig down".
2357 * That's the method that is most friendly towards the network
2358 * stack (i.e. the network stack won't try to broadcast
2359 * anything on the interface and routes are gone. Jean II */
2360 set_bit(FLAG_RADIO_DOWN, &ai->flags);
2361 disable_MAC(ai, 1);
2362 #endif
2363 disable_interrupts( ai );
2364
2365 free_irq(dev->irq, dev);
2366
2367 set_bit(JOB_DIE, &ai->jobs);
2368 kthread_stop(ai->airo_thread_task);
2369 }
2370 return 0;
2371 }
2372
stop_airo_card(struct net_device * dev,int freeres)2373 void stop_airo_card( struct net_device *dev, int freeres )
2374 {
2375 struct airo_info *ai = dev->ml_priv;
2376
2377 set_bit(FLAG_RADIO_DOWN, &ai->flags);
2378 disable_MAC(ai, 1);
2379 disable_interrupts(ai);
2380 takedown_proc_entry( dev, ai );
2381 if (test_bit(FLAG_REGISTERED, &ai->flags)) {
2382 unregister_netdev( dev );
2383 if (ai->wifidev) {
2384 unregister_netdev(ai->wifidev);
2385 free_netdev(ai->wifidev);
2386 ai->wifidev = NULL;
2387 }
2388 clear_bit(FLAG_REGISTERED, &ai->flags);
2389 }
2390 /*
2391 * Clean out tx queue
2392 */
2393 if (test_bit(FLAG_MPI, &ai->flags) && !skb_queue_empty(&ai->txq)) {
2394 struct sk_buff *skb = NULL;
2395 for (;(skb = skb_dequeue(&ai->txq));)
2396 dev_kfree_skb(skb);
2397 }
2398
2399 airo_networks_free (ai);
2400
2401 kfree(ai->flash);
2402 kfree(ai->rssi);
2403 kfree(ai->SSID);
2404 if (freeres) {
2405 /* PCMCIA frees this stuff, so only for PCI and ISA */
2406 release_region( dev->base_addr, 64 );
2407 if (test_bit(FLAG_MPI, &ai->flags)) {
2408 if (ai->pci)
2409 mpi_unmap_card(ai->pci);
2410 if (ai->pcimem)
2411 iounmap(ai->pcimem);
2412 if (ai->pciaux)
2413 iounmap(ai->pciaux);
2414 pci_free_consistent(ai->pci, PCI_SHARED_LEN,
2415 ai->shared, ai->shared_dma);
2416 }
2417 }
2418 crypto_free_cipher(ai->tfm);
2419 del_airo_dev(ai);
2420 free_netdev( dev );
2421 }
2422
2423 EXPORT_SYMBOL(stop_airo_card);
2424
wll_header_parse(const struct sk_buff * skb,unsigned char * haddr)2425 static int wll_header_parse(const struct sk_buff *skb, unsigned char *haddr)
2426 {
2427 memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN);
2428 return ETH_ALEN;
2429 }
2430
mpi_unmap_card(struct pci_dev * pci)2431 static void mpi_unmap_card(struct pci_dev *pci)
2432 {
2433 unsigned long mem_start = pci_resource_start(pci, 1);
2434 unsigned long mem_len = pci_resource_len(pci, 1);
2435 unsigned long aux_start = pci_resource_start(pci, 2);
2436 unsigned long aux_len = AUXMEMSIZE;
2437
2438 release_mem_region(aux_start, aux_len);
2439 release_mem_region(mem_start, mem_len);
2440 }
2441
2442 /*************************************************************
2443 * This routine assumes that descriptors have been setup .
2444 * Run at insmod time or after reset when the decriptors
2445 * have been initialized . Returns 0 if all is well nz
2446 * otherwise . Does not allocate memory but sets up card
2447 * using previously allocated descriptors.
2448 */
mpi_init_descriptors(struct airo_info * ai)2449 static int mpi_init_descriptors (struct airo_info *ai)
2450 {
2451 Cmd cmd;
2452 Resp rsp;
2453 int i;
2454 int rc = SUCCESS;
2455
2456 /* Alloc card RX descriptors */
2457 netif_stop_queue(ai->dev);
2458
2459 memset(&rsp,0,sizeof(rsp));
2460 memset(&cmd,0,sizeof(cmd));
2461
2462 cmd.cmd = CMD_ALLOCATEAUX;
2463 cmd.parm0 = FID_RX;
2464 cmd.parm1 = (ai->rxfids[0].card_ram_off - ai->pciaux);
2465 cmd.parm2 = MPI_MAX_FIDS;
2466 rc=issuecommand(ai, &cmd, &rsp);
2467 if (rc != SUCCESS) {
2468 airo_print_err(ai->dev->name, "Couldn't allocate RX FID");
2469 return rc;
2470 }
2471
2472 for (i=0; i<MPI_MAX_FIDS; i++) {
2473 memcpy_toio(ai->rxfids[i].card_ram_off,
2474 &ai->rxfids[i].rx_desc, sizeof(RxFid));
2475 }
2476
2477 /* Alloc card TX descriptors */
2478
2479 memset(&rsp,0,sizeof(rsp));
2480 memset(&cmd,0,sizeof(cmd));
2481
2482 cmd.cmd = CMD_ALLOCATEAUX;
2483 cmd.parm0 = FID_TX;
2484 cmd.parm1 = (ai->txfids[0].card_ram_off - ai->pciaux);
2485 cmd.parm2 = MPI_MAX_FIDS;
2486
2487 for (i=0; i<MPI_MAX_FIDS; i++) {
2488 ai->txfids[i].tx_desc.valid = 1;
2489 memcpy_toio(ai->txfids[i].card_ram_off,
2490 &ai->txfids[i].tx_desc, sizeof(TxFid));
2491 }
2492 ai->txfids[i-1].tx_desc.eoc = 1; /* Last descriptor has EOC set */
2493
2494 rc=issuecommand(ai, &cmd, &rsp);
2495 if (rc != SUCCESS) {
2496 airo_print_err(ai->dev->name, "Couldn't allocate TX FID");
2497 return rc;
2498 }
2499
2500 /* Alloc card Rid descriptor */
2501 memset(&rsp,0,sizeof(rsp));
2502 memset(&cmd,0,sizeof(cmd));
2503
2504 cmd.cmd = CMD_ALLOCATEAUX;
2505 cmd.parm0 = RID_RW;
2506 cmd.parm1 = (ai->config_desc.card_ram_off - ai->pciaux);
2507 cmd.parm2 = 1; /* Magic number... */
2508 rc=issuecommand(ai, &cmd, &rsp);
2509 if (rc != SUCCESS) {
2510 airo_print_err(ai->dev->name, "Couldn't allocate RID");
2511 return rc;
2512 }
2513
2514 memcpy_toio(ai->config_desc.card_ram_off,
2515 &ai->config_desc.rid_desc, sizeof(Rid));
2516
2517 return rc;
2518 }
2519
2520 /*
2521 * We are setting up three things here:
2522 * 1) Map AUX memory for descriptors: Rid, TxFid, or RxFid.
2523 * 2) Map PCI memory for issuing commands.
2524 * 3) Allocate memory (shared) to send and receive ethernet frames.
2525 */
mpi_map_card(struct airo_info * ai,struct pci_dev * pci)2526 static int mpi_map_card(struct airo_info *ai, struct pci_dev *pci)
2527 {
2528 unsigned long mem_start, mem_len, aux_start, aux_len;
2529 int rc = -1;
2530 int i;
2531 dma_addr_t busaddroff;
2532 unsigned char *vpackoff;
2533 unsigned char __iomem *pciaddroff;
2534
2535 mem_start = pci_resource_start(pci, 1);
2536 mem_len = pci_resource_len(pci, 1);
2537 aux_start = pci_resource_start(pci, 2);
2538 aux_len = AUXMEMSIZE;
2539
2540 if (!request_mem_region(mem_start, mem_len, DRV_NAME)) {
2541 airo_print_err("", "Couldn't get region %x[%x]",
2542 (int)mem_start, (int)mem_len);
2543 goto out;
2544 }
2545 if (!request_mem_region(aux_start, aux_len, DRV_NAME)) {
2546 airo_print_err("", "Couldn't get region %x[%x]",
2547 (int)aux_start, (int)aux_len);
2548 goto free_region1;
2549 }
2550
2551 ai->pcimem = ioremap(mem_start, mem_len);
2552 if (!ai->pcimem) {
2553 airo_print_err("", "Couldn't map region %x[%x]",
2554 (int)mem_start, (int)mem_len);
2555 goto free_region2;
2556 }
2557 ai->pciaux = ioremap(aux_start, aux_len);
2558 if (!ai->pciaux) {
2559 airo_print_err("", "Couldn't map region %x[%x]",
2560 (int)aux_start, (int)aux_len);
2561 goto free_memmap;
2562 }
2563
2564 /* Reserve PKTSIZE for each fid and 2K for the Rids */
2565 ai->shared = pci_alloc_consistent(pci, PCI_SHARED_LEN, &ai->shared_dma);
2566 if (!ai->shared) {
2567 airo_print_err("", "Couldn't alloc_consistent %d",
2568 PCI_SHARED_LEN);
2569 goto free_auxmap;
2570 }
2571
2572 /*
2573 * Setup descriptor RX, TX, CONFIG
2574 */
2575 busaddroff = ai->shared_dma;
2576 pciaddroff = ai->pciaux + AUX_OFFSET;
2577 vpackoff = ai->shared;
2578
2579 /* RX descriptor setup */
2580 for(i = 0; i < MPI_MAX_FIDS; i++) {
2581 ai->rxfids[i].pending = 0;
2582 ai->rxfids[i].card_ram_off = pciaddroff;
2583 ai->rxfids[i].virtual_host_addr = vpackoff;
2584 ai->rxfids[i].rx_desc.host_addr = busaddroff;
2585 ai->rxfids[i].rx_desc.valid = 1;
2586 ai->rxfids[i].rx_desc.len = PKTSIZE;
2587 ai->rxfids[i].rx_desc.rdy = 0;
2588
2589 pciaddroff += sizeof(RxFid);
2590 busaddroff += PKTSIZE;
2591 vpackoff += PKTSIZE;
2592 }
2593
2594 /* TX descriptor setup */
2595 for(i = 0; i < MPI_MAX_FIDS; i++) {
2596 ai->txfids[i].card_ram_off = pciaddroff;
2597 ai->txfids[i].virtual_host_addr = vpackoff;
2598 ai->txfids[i].tx_desc.valid = 1;
2599 ai->txfids[i].tx_desc.host_addr = busaddroff;
2600 memcpy(ai->txfids[i].virtual_host_addr,
2601 &wifictlhdr8023, sizeof(wifictlhdr8023));
2602
2603 pciaddroff += sizeof(TxFid);
2604 busaddroff += PKTSIZE;
2605 vpackoff += PKTSIZE;
2606 }
2607 ai->txfids[i-1].tx_desc.eoc = 1; /* Last descriptor has EOC set */
2608
2609 /* Rid descriptor setup */
2610 ai->config_desc.card_ram_off = pciaddroff;
2611 ai->config_desc.virtual_host_addr = vpackoff;
2612 ai->config_desc.rid_desc.host_addr = busaddroff;
2613 ai->ridbus = busaddroff;
2614 ai->config_desc.rid_desc.rid = 0;
2615 ai->config_desc.rid_desc.len = RIDSIZE;
2616 ai->config_desc.rid_desc.valid = 1;
2617 pciaddroff += sizeof(Rid);
2618 busaddroff += RIDSIZE;
2619 vpackoff += RIDSIZE;
2620
2621 /* Tell card about descriptors */
2622 if (mpi_init_descriptors (ai) != SUCCESS)
2623 goto free_shared;
2624
2625 return 0;
2626 free_shared:
2627 pci_free_consistent(pci, PCI_SHARED_LEN, ai->shared, ai->shared_dma);
2628 free_auxmap:
2629 iounmap(ai->pciaux);
2630 free_memmap:
2631 iounmap(ai->pcimem);
2632 free_region2:
2633 release_mem_region(aux_start, aux_len);
2634 free_region1:
2635 release_mem_region(mem_start, mem_len);
2636 out:
2637 return rc;
2638 }
2639
2640 static const struct header_ops airo_header_ops = {
2641 .parse = wll_header_parse,
2642 };
2643
2644 static const struct net_device_ops airo11_netdev_ops = {
2645 .ndo_open = airo_open,
2646 .ndo_stop = airo_close,
2647 .ndo_start_xmit = airo_start_xmit11,
2648 .ndo_get_stats = airo_get_stats,
2649 .ndo_set_mac_address = airo_set_mac_address,
2650 .ndo_do_ioctl = airo_ioctl,
2651 };
2652
wifi_setup(struct net_device * dev)2653 static void wifi_setup(struct net_device *dev)
2654 {
2655 dev->netdev_ops = &airo11_netdev_ops;
2656 dev->header_ops = &airo_header_ops;
2657 dev->wireless_handlers = &airo_handler_def;
2658
2659 dev->type = ARPHRD_IEEE80211;
2660 dev->hard_header_len = ETH_HLEN;
2661 dev->mtu = AIRO_DEF_MTU;
2662 dev->min_mtu = 68;
2663 dev->max_mtu = MIC_MSGLEN_MAX;
2664 dev->addr_len = ETH_ALEN;
2665 dev->tx_queue_len = 100;
2666
2667 eth_broadcast_addr(dev->broadcast);
2668
2669 dev->flags = IFF_BROADCAST|IFF_MULTICAST;
2670 }
2671
init_wifidev(struct airo_info * ai,struct net_device * ethdev)2672 static struct net_device *init_wifidev(struct airo_info *ai,
2673 struct net_device *ethdev)
2674 {
2675 int err;
2676 struct net_device *dev = alloc_netdev(0, "wifi%d", NET_NAME_UNKNOWN,
2677 wifi_setup);
2678 if (!dev)
2679 return NULL;
2680 dev->ml_priv = ethdev->ml_priv;
2681 dev->irq = ethdev->irq;
2682 dev->base_addr = ethdev->base_addr;
2683 dev->wireless_data = ethdev->wireless_data;
2684 SET_NETDEV_DEV(dev, ethdev->dev.parent);
2685 eth_hw_addr_inherit(dev, ethdev);
2686 err = register_netdev(dev);
2687 if (err<0) {
2688 free_netdev(dev);
2689 return NULL;
2690 }
2691 return dev;
2692 }
2693
reset_card(struct net_device * dev,int lock)2694 static int reset_card( struct net_device *dev , int lock) {
2695 struct airo_info *ai = dev->ml_priv;
2696
2697 if (lock && down_interruptible(&ai->sem))
2698 return -1;
2699 waitbusy (ai);
2700 OUT4500(ai,COMMAND,CMD_SOFTRESET);
2701 msleep(200);
2702 waitbusy (ai);
2703 msleep(200);
2704 if (lock)
2705 up(&ai->sem);
2706 return 0;
2707 }
2708
2709 #define AIRO_MAX_NETWORK_COUNT 64
airo_networks_allocate(struct airo_info * ai)2710 static int airo_networks_allocate(struct airo_info *ai)
2711 {
2712 if (ai->networks)
2713 return 0;
2714
2715 ai->networks = kcalloc(AIRO_MAX_NETWORK_COUNT, sizeof(BSSListElement),
2716 GFP_KERNEL);
2717 if (!ai->networks) {
2718 airo_print_warn("", "Out of memory allocating beacons");
2719 return -ENOMEM;
2720 }
2721
2722 return 0;
2723 }
2724
airo_networks_free(struct airo_info * ai)2725 static void airo_networks_free(struct airo_info *ai)
2726 {
2727 kfree(ai->networks);
2728 ai->networks = NULL;
2729 }
2730
airo_networks_initialize(struct airo_info * ai)2731 static void airo_networks_initialize(struct airo_info *ai)
2732 {
2733 int i;
2734
2735 INIT_LIST_HEAD(&ai->network_free_list);
2736 INIT_LIST_HEAD(&ai->network_list);
2737 for (i = 0; i < AIRO_MAX_NETWORK_COUNT; i++)
2738 list_add_tail(&ai->networks[i].list,
2739 &ai->network_free_list);
2740 }
2741
2742 static const struct net_device_ops airo_netdev_ops = {
2743 .ndo_open = airo_open,
2744 .ndo_stop = airo_close,
2745 .ndo_start_xmit = airo_start_xmit,
2746 .ndo_get_stats = airo_get_stats,
2747 .ndo_set_rx_mode = airo_set_multicast_list,
2748 .ndo_set_mac_address = airo_set_mac_address,
2749 .ndo_do_ioctl = airo_ioctl,
2750 .ndo_validate_addr = eth_validate_addr,
2751 };
2752
2753 static const struct net_device_ops mpi_netdev_ops = {
2754 .ndo_open = airo_open,
2755 .ndo_stop = airo_close,
2756 .ndo_start_xmit = mpi_start_xmit,
2757 .ndo_get_stats = airo_get_stats,
2758 .ndo_set_rx_mode = airo_set_multicast_list,
2759 .ndo_set_mac_address = airo_set_mac_address,
2760 .ndo_do_ioctl = airo_ioctl,
2761 .ndo_validate_addr = eth_validate_addr,
2762 };
2763
2764
_init_airo_card(unsigned short irq,int port,int is_pcmcia,struct pci_dev * pci,struct device * dmdev)2765 static struct net_device *_init_airo_card( unsigned short irq, int port,
2766 int is_pcmcia, struct pci_dev *pci,
2767 struct device *dmdev )
2768 {
2769 struct net_device *dev;
2770 struct airo_info *ai;
2771 int i, rc;
2772 CapabilityRid cap_rid;
2773
2774 /* Create the network device object. */
2775 dev = alloc_netdev(sizeof(*ai), "", NET_NAME_UNKNOWN, ether_setup);
2776 if (!dev) {
2777 airo_print_err("", "Couldn't alloc_etherdev");
2778 return NULL;
2779 }
2780
2781 ai = dev->ml_priv = netdev_priv(dev);
2782 ai->wifidev = NULL;
2783 ai->flags = 1 << FLAG_RADIO_DOWN;
2784 ai->jobs = 0;
2785 ai->dev = dev;
2786 if (pci && (pci->device == 0x5000 || pci->device == 0xa504)) {
2787 airo_print_dbg("", "Found an MPI350 card");
2788 set_bit(FLAG_MPI, &ai->flags);
2789 }
2790 spin_lock_init(&ai->aux_lock);
2791 sema_init(&ai->sem, 1);
2792 ai->config.len = 0;
2793 ai->pci = pci;
2794 init_waitqueue_head (&ai->thr_wait);
2795 ai->tfm = NULL;
2796 add_airo_dev(ai);
2797 ai->APList.len = cpu_to_le16(sizeof(struct APListRid));
2798
2799 if (airo_networks_allocate (ai))
2800 goto err_out_free;
2801 airo_networks_initialize (ai);
2802
2803 skb_queue_head_init (&ai->txq);
2804
2805 /* The Airo-specific entries in the device structure. */
2806 if (test_bit(FLAG_MPI,&ai->flags))
2807 dev->netdev_ops = &mpi_netdev_ops;
2808 else
2809 dev->netdev_ops = &airo_netdev_ops;
2810 dev->wireless_handlers = &airo_handler_def;
2811 ai->wireless_data.spy_data = &ai->spy_data;
2812 dev->wireless_data = &ai->wireless_data;
2813 dev->irq = irq;
2814 dev->base_addr = port;
2815 dev->priv_flags &= ~IFF_TX_SKB_SHARING;
2816 dev->max_mtu = MIC_MSGLEN_MAX;
2817
2818 SET_NETDEV_DEV(dev, dmdev);
2819
2820 reset_card (dev, 1);
2821 msleep(400);
2822
2823 if (!is_pcmcia) {
2824 if (!request_region(dev->base_addr, 64, DRV_NAME)) {
2825 rc = -EBUSY;
2826 airo_print_err(dev->name, "Couldn't request region");
2827 goto err_out_nets;
2828 }
2829 }
2830
2831 if (test_bit(FLAG_MPI,&ai->flags)) {
2832 if (mpi_map_card(ai, pci)) {
2833 airo_print_err("", "Could not map memory");
2834 goto err_out_res;
2835 }
2836 }
2837
2838 if (probe) {
2839 if (setup_card(ai, dev->dev_addr, 1) != SUCCESS) {
2840 airo_print_err(dev->name, "MAC could not be enabled" );
2841 rc = -EIO;
2842 goto err_out_map;
2843 }
2844 } else if (!test_bit(FLAG_MPI,&ai->flags)) {
2845 ai->bap_read = fast_bap_read;
2846 set_bit(FLAG_FLASHING, &ai->flags);
2847 }
2848
2849 strcpy(dev->name, "eth%d");
2850 rc = register_netdev(dev);
2851 if (rc) {
2852 airo_print_err(dev->name, "Couldn't register_netdev");
2853 goto err_out_map;
2854 }
2855 ai->wifidev = init_wifidev(ai, dev);
2856 if (!ai->wifidev)
2857 goto err_out_reg;
2858
2859 rc = readCapabilityRid(ai, &cap_rid, 1);
2860 if (rc != SUCCESS) {
2861 rc = -EIO;
2862 goto err_out_wifi;
2863 }
2864 /* WEP capability discovery */
2865 ai->wep_capable = (cap_rid.softCap & cpu_to_le16(0x02)) ? 1 : 0;
2866 ai->max_wep_idx = (cap_rid.softCap & cpu_to_le16(0x80)) ? 3 : 0;
2867
2868 airo_print_info(dev->name, "Firmware version %x.%x.%02d",
2869 ((le16_to_cpu(cap_rid.softVer) >> 8) & 0xF),
2870 (le16_to_cpu(cap_rid.softVer) & 0xFF),
2871 le16_to_cpu(cap_rid.softSubVer));
2872
2873 /* Test for WPA support */
2874 /* Only firmware versions 5.30.17 or better can do WPA */
2875 if (le16_to_cpu(cap_rid.softVer) > 0x530
2876 || (le16_to_cpu(cap_rid.softVer) == 0x530
2877 && le16_to_cpu(cap_rid.softSubVer) >= 17)) {
2878 airo_print_info(ai->dev->name, "WPA supported.");
2879
2880 set_bit(FLAG_WPA_CAPABLE, &ai->flags);
2881 ai->bssListFirst = RID_WPA_BSSLISTFIRST;
2882 ai->bssListNext = RID_WPA_BSSLISTNEXT;
2883 ai->bssListRidLen = sizeof(BSSListRid);
2884 } else {
2885 airo_print_info(ai->dev->name, "WPA unsupported with firmware "
2886 "versions older than 5.30.17.");
2887
2888 ai->bssListFirst = RID_BSSLISTFIRST;
2889 ai->bssListNext = RID_BSSLISTNEXT;
2890 ai->bssListRidLen = sizeof(BSSListRid) - sizeof(BSSListRidExtra);
2891 }
2892
2893 set_bit(FLAG_REGISTERED,&ai->flags);
2894 airo_print_info(dev->name, "MAC enabled %pM", dev->dev_addr);
2895
2896 /* Allocate the transmit buffers */
2897 if (probe && !test_bit(FLAG_MPI,&ai->flags))
2898 for( i = 0; i < MAX_FIDS; i++ )
2899 ai->fids[i] = transmit_allocate(ai,AIRO_DEF_MTU,i>=MAX_FIDS/2);
2900
2901 if (setup_proc_entry(dev, dev->ml_priv) < 0)
2902 goto err_out_wifi;
2903
2904 return dev;
2905
2906 err_out_wifi:
2907 unregister_netdev(ai->wifidev);
2908 free_netdev(ai->wifidev);
2909 err_out_reg:
2910 unregister_netdev(dev);
2911 err_out_map:
2912 if (test_bit(FLAG_MPI,&ai->flags) && pci) {
2913 pci_free_consistent(pci, PCI_SHARED_LEN, ai->shared, ai->shared_dma);
2914 iounmap(ai->pciaux);
2915 iounmap(ai->pcimem);
2916 mpi_unmap_card(ai->pci);
2917 }
2918 err_out_res:
2919 if (!is_pcmcia)
2920 release_region( dev->base_addr, 64 );
2921 err_out_nets:
2922 airo_networks_free(ai);
2923 err_out_free:
2924 del_airo_dev(ai);
2925 free_netdev(dev);
2926 return NULL;
2927 }
2928
init_airo_card(unsigned short irq,int port,int is_pcmcia,struct device * dmdev)2929 struct net_device *init_airo_card( unsigned short irq, int port, int is_pcmcia,
2930 struct device *dmdev)
2931 {
2932 return _init_airo_card ( irq, port, is_pcmcia, NULL, dmdev);
2933 }
2934
2935 EXPORT_SYMBOL(init_airo_card);
2936
waitbusy(struct airo_info * ai)2937 static int waitbusy (struct airo_info *ai) {
2938 int delay = 0;
2939 while ((IN4500(ai, COMMAND) & COMMAND_BUSY) && (delay < 10000)) {
2940 udelay (10);
2941 if ((++delay % 20) == 0)
2942 OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
2943 }
2944 return delay < 10000;
2945 }
2946
reset_airo_card(struct net_device * dev)2947 int reset_airo_card( struct net_device *dev )
2948 {
2949 int i;
2950 struct airo_info *ai = dev->ml_priv;
2951
2952 if (reset_card (dev, 1))
2953 return -1;
2954
2955 if ( setup_card(ai, dev->dev_addr, 1 ) != SUCCESS ) {
2956 airo_print_err(dev->name, "MAC could not be enabled");
2957 return -1;
2958 }
2959 airo_print_info(dev->name, "MAC enabled %pM", dev->dev_addr);
2960 /* Allocate the transmit buffers if needed */
2961 if (!test_bit(FLAG_MPI,&ai->flags))
2962 for( i = 0; i < MAX_FIDS; i++ )
2963 ai->fids[i] = transmit_allocate (ai,AIRO_DEF_MTU,i>=MAX_FIDS/2);
2964
2965 enable_interrupts( ai );
2966 netif_wake_queue(dev);
2967 return 0;
2968 }
2969
2970 EXPORT_SYMBOL(reset_airo_card);
2971
airo_send_event(struct net_device * dev)2972 static void airo_send_event(struct net_device *dev) {
2973 struct airo_info *ai = dev->ml_priv;
2974 union iwreq_data wrqu;
2975 StatusRid status_rid;
2976
2977 clear_bit(JOB_EVENT, &ai->jobs);
2978 PC4500_readrid(ai, RID_STATUS, &status_rid, sizeof(status_rid), 0);
2979 up(&ai->sem);
2980 wrqu.data.length = 0;
2981 wrqu.data.flags = 0;
2982 memcpy(wrqu.ap_addr.sa_data, status_rid.bssid[0], ETH_ALEN);
2983 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
2984
2985 /* Send event to user space */
2986 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
2987 }
2988
airo_process_scan_results(struct airo_info * ai)2989 static void airo_process_scan_results (struct airo_info *ai) {
2990 union iwreq_data wrqu;
2991 BSSListRid bss;
2992 int rc;
2993 BSSListElement * loop_net;
2994 BSSListElement * tmp_net;
2995
2996 /* Blow away current list of scan results */
2997 list_for_each_entry_safe (loop_net, tmp_net, &ai->network_list, list) {
2998 list_move_tail (&loop_net->list, &ai->network_free_list);
2999 /* Don't blow away ->list, just BSS data */
3000 memset (loop_net, 0, sizeof (loop_net->bss));
3001 }
3002
3003 /* Try to read the first entry of the scan result */
3004 rc = PC4500_readrid(ai, ai->bssListFirst, &bss, ai->bssListRidLen, 0);
3005 if((rc) || (bss.index == cpu_to_le16(0xffff))) {
3006 /* No scan results */
3007 goto out;
3008 }
3009
3010 /* Read and parse all entries */
3011 tmp_net = NULL;
3012 while((!rc) && (bss.index != cpu_to_le16(0xffff))) {
3013 /* Grab a network off the free list */
3014 if (!list_empty(&ai->network_free_list)) {
3015 tmp_net = list_entry(ai->network_free_list.next,
3016 BSSListElement, list);
3017 list_del(ai->network_free_list.next);
3018 }
3019
3020 if (tmp_net != NULL) {
3021 memcpy(tmp_net, &bss, sizeof(tmp_net->bss));
3022 list_add_tail(&tmp_net->list, &ai->network_list);
3023 tmp_net = NULL;
3024 }
3025
3026 /* Read next entry */
3027 rc = PC4500_readrid(ai, ai->bssListNext,
3028 &bss, ai->bssListRidLen, 0);
3029 }
3030
3031 out:
3032 /* write APList back (we cleared it in airo_set_scan) */
3033 disable_MAC(ai, 2);
3034 writeAPListRid(ai, &ai->APList, 0);
3035 enable_MAC(ai, 0);
3036
3037 ai->scan_timeout = 0;
3038 clear_bit(JOB_SCAN_RESULTS, &ai->jobs);
3039 up(&ai->sem);
3040
3041 /* Send an empty event to user space.
3042 * We don't send the received data on
3043 * the event because it would require
3044 * us to do complex transcoding, and
3045 * we want to minimise the work done in
3046 * the irq handler. Use a request to
3047 * extract the data - Jean II */
3048 wrqu.data.length = 0;
3049 wrqu.data.flags = 0;
3050 wireless_send_event(ai->dev, SIOCGIWSCAN, &wrqu, NULL);
3051 }
3052
airo_thread(void * data)3053 static int airo_thread(void *data) {
3054 struct net_device *dev = data;
3055 struct airo_info *ai = dev->ml_priv;
3056 int locked;
3057
3058 set_freezable();
3059 while(1) {
3060 /* make swsusp happy with our thread */
3061 try_to_freeze();
3062
3063 if (test_bit(JOB_DIE, &ai->jobs))
3064 break;
3065
3066 if (ai->jobs) {
3067 locked = down_interruptible(&ai->sem);
3068 } else {
3069 wait_queue_entry_t wait;
3070
3071 init_waitqueue_entry(&wait, current);
3072 add_wait_queue(&ai->thr_wait, &wait);
3073 for (;;) {
3074 set_current_state(TASK_INTERRUPTIBLE);
3075 if (ai->jobs)
3076 break;
3077 if (ai->expires || ai->scan_timeout) {
3078 if (ai->scan_timeout &&
3079 time_after_eq(jiffies,ai->scan_timeout)){
3080 set_bit(JOB_SCAN_RESULTS, &ai->jobs);
3081 break;
3082 } else if (ai->expires &&
3083 time_after_eq(jiffies,ai->expires)){
3084 set_bit(JOB_AUTOWEP, &ai->jobs);
3085 break;
3086 }
3087 if (!kthread_should_stop() &&
3088 !freezing(current)) {
3089 unsigned long wake_at;
3090 if (!ai->expires || !ai->scan_timeout) {
3091 wake_at = max(ai->expires,
3092 ai->scan_timeout);
3093 } else {
3094 wake_at = min(ai->expires,
3095 ai->scan_timeout);
3096 }
3097 schedule_timeout(wake_at - jiffies);
3098 continue;
3099 }
3100 } else if (!kthread_should_stop() &&
3101 !freezing(current)) {
3102 schedule();
3103 continue;
3104 }
3105 break;
3106 }
3107 current->state = TASK_RUNNING;
3108 remove_wait_queue(&ai->thr_wait, &wait);
3109 locked = 1;
3110 }
3111
3112 if (locked)
3113 continue;
3114
3115 if (test_bit(JOB_DIE, &ai->jobs)) {
3116 up(&ai->sem);
3117 break;
3118 }
3119
3120 if (ai->power.event || test_bit(FLAG_FLASHING, &ai->flags)) {
3121 up(&ai->sem);
3122 continue;
3123 }
3124
3125 if (test_bit(JOB_XMIT, &ai->jobs))
3126 airo_end_xmit(dev);
3127 else if (test_bit(JOB_XMIT11, &ai->jobs))
3128 airo_end_xmit11(dev);
3129 else if (test_bit(JOB_STATS, &ai->jobs))
3130 airo_read_stats(dev);
3131 else if (test_bit(JOB_WSTATS, &ai->jobs))
3132 airo_read_wireless_stats(ai);
3133 else if (test_bit(JOB_PROMISC, &ai->jobs))
3134 airo_set_promisc(ai);
3135 else if (test_bit(JOB_MIC, &ai->jobs))
3136 micinit(ai);
3137 else if (test_bit(JOB_EVENT, &ai->jobs))
3138 airo_send_event(dev);
3139 else if (test_bit(JOB_AUTOWEP, &ai->jobs))
3140 timer_func(dev);
3141 else if (test_bit(JOB_SCAN_RESULTS, &ai->jobs))
3142 airo_process_scan_results(ai);
3143 else /* Shouldn't get here, but we make sure to unlock */
3144 up(&ai->sem);
3145 }
3146
3147 return 0;
3148 }
3149
header_len(__le16 ctl)3150 static int header_len(__le16 ctl)
3151 {
3152 u16 fc = le16_to_cpu(ctl);
3153 switch (fc & 0xc) {
3154 case 4:
3155 if ((fc & 0xe0) == 0xc0)
3156 return 10; /* one-address control packet */
3157 return 16; /* two-address control packet */
3158 case 8:
3159 if ((fc & 0x300) == 0x300)
3160 return 30; /* WDS packet */
3161 }
3162 return 24;
3163 }
3164
airo_handle_cisco_mic(struct airo_info * ai)3165 static void airo_handle_cisco_mic(struct airo_info *ai)
3166 {
3167 if (test_bit(FLAG_MIC_CAPABLE, &ai->flags)) {
3168 set_bit(JOB_MIC, &ai->jobs);
3169 wake_up_interruptible(&ai->thr_wait);
3170 }
3171 }
3172
3173 /* Airo Status codes */
3174 #define STAT_NOBEACON 0x8000 /* Loss of sync - missed beacons */
3175 #define STAT_MAXRETRIES 0x8001 /* Loss of sync - max retries */
3176 #define STAT_MAXARL 0x8002 /* Loss of sync - average retry level exceeded*/
3177 #define STAT_FORCELOSS 0x8003 /* Loss of sync - host request */
3178 #define STAT_TSFSYNC 0x8004 /* Loss of sync - TSF synchronization */
3179 #define STAT_DEAUTH 0x8100 /* low byte is 802.11 reason code */
3180 #define STAT_DISASSOC 0x8200 /* low byte is 802.11 reason code */
3181 #define STAT_ASSOC_FAIL 0x8400 /* low byte is 802.11 reason code */
3182 #define STAT_AUTH_FAIL 0x0300 /* low byte is 802.11 reason code */
3183 #define STAT_ASSOC 0x0400 /* Associated */
3184 #define STAT_REASSOC 0x0600 /* Reassociated? Only on firmware >= 5.30.17 */
3185
airo_print_status(const char * devname,u16 status)3186 static void airo_print_status(const char *devname, u16 status)
3187 {
3188 u8 reason = status & 0xFF;
3189
3190 switch (status & 0xFF00) {
3191 case STAT_NOBEACON:
3192 switch (status) {
3193 case STAT_NOBEACON:
3194 airo_print_dbg(devname, "link lost (missed beacons)");
3195 break;
3196 case STAT_MAXRETRIES:
3197 case STAT_MAXARL:
3198 airo_print_dbg(devname, "link lost (max retries)");
3199 break;
3200 case STAT_FORCELOSS:
3201 airo_print_dbg(devname, "link lost (local choice)");
3202 break;
3203 case STAT_TSFSYNC:
3204 airo_print_dbg(devname, "link lost (TSF sync lost)");
3205 break;
3206 default:
3207 airo_print_dbg(devname, "unknown status %x\n", status);
3208 break;
3209 }
3210 break;
3211 case STAT_DEAUTH:
3212 airo_print_dbg(devname, "deauthenticated (reason: %d)", reason);
3213 break;
3214 case STAT_DISASSOC:
3215 airo_print_dbg(devname, "disassociated (reason: %d)", reason);
3216 break;
3217 case STAT_ASSOC_FAIL:
3218 airo_print_dbg(devname, "association failed (reason: %d)",
3219 reason);
3220 break;
3221 case STAT_AUTH_FAIL:
3222 airo_print_dbg(devname, "authentication failed (reason: %d)",
3223 reason);
3224 break;
3225 case STAT_ASSOC:
3226 case STAT_REASSOC:
3227 break;
3228 default:
3229 airo_print_dbg(devname, "unknown status %x\n", status);
3230 break;
3231 }
3232 }
3233
airo_handle_link(struct airo_info * ai)3234 static void airo_handle_link(struct airo_info *ai)
3235 {
3236 union iwreq_data wrqu;
3237 int scan_forceloss = 0;
3238 u16 status;
3239
3240 /* Get new status and acknowledge the link change */
3241 status = le16_to_cpu(IN4500(ai, LINKSTAT));
3242 OUT4500(ai, EVACK, EV_LINK);
3243
3244 if ((status == STAT_FORCELOSS) && (ai->scan_timeout > 0))
3245 scan_forceloss = 1;
3246
3247 airo_print_status(ai->dev->name, status);
3248
3249 if ((status == STAT_ASSOC) || (status == STAT_REASSOC)) {
3250 if (auto_wep)
3251 ai->expires = 0;
3252 if (ai->list_bss_task)
3253 wake_up_process(ai->list_bss_task);
3254 set_bit(FLAG_UPDATE_UNI, &ai->flags);
3255 set_bit(FLAG_UPDATE_MULTI, &ai->flags);
3256
3257 if (down_trylock(&ai->sem) != 0) {
3258 set_bit(JOB_EVENT, &ai->jobs);
3259 wake_up_interruptible(&ai->thr_wait);
3260 } else
3261 airo_send_event(ai->dev);
3262 netif_carrier_on(ai->dev);
3263 } else if (!scan_forceloss) {
3264 if (auto_wep && !ai->expires) {
3265 ai->expires = RUN_AT(3*HZ);
3266 wake_up_interruptible(&ai->thr_wait);
3267 }
3268
3269 /* Send event to user space */
3270 eth_zero_addr(wrqu.ap_addr.sa_data);
3271 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3272 wireless_send_event(ai->dev, SIOCGIWAP, &wrqu, NULL);
3273 netif_carrier_off(ai->dev);
3274 } else {
3275 netif_carrier_off(ai->dev);
3276 }
3277 }
3278
airo_handle_rx(struct airo_info * ai)3279 static void airo_handle_rx(struct airo_info *ai)
3280 {
3281 struct sk_buff *skb = NULL;
3282 __le16 fc, v, *buffer, tmpbuf[4];
3283 u16 len, hdrlen = 0, gap, fid;
3284 struct rx_hdr hdr;
3285 int success = 0;
3286
3287 if (test_bit(FLAG_MPI, &ai->flags)) {
3288 if (test_bit(FLAG_802_11, &ai->flags))
3289 mpi_receive_802_11(ai);
3290 else
3291 mpi_receive_802_3(ai);
3292 OUT4500(ai, EVACK, EV_RX);
3293 return;
3294 }
3295
3296 fid = IN4500(ai, RXFID);
3297
3298 /* Get the packet length */
3299 if (test_bit(FLAG_802_11, &ai->flags)) {
3300 bap_setup (ai, fid, 4, BAP0);
3301 bap_read (ai, (__le16*)&hdr, sizeof(hdr), BAP0);
3302 /* Bad CRC. Ignore packet */
3303 if (le16_to_cpu(hdr.status) & 2)
3304 hdr.len = 0;
3305 if (ai->wifidev == NULL)
3306 hdr.len = 0;
3307 } else {
3308 bap_setup(ai, fid, 0x36, BAP0);
3309 bap_read(ai, &hdr.len, 2, BAP0);
3310 }
3311 len = le16_to_cpu(hdr.len);
3312
3313 if (len > AIRO_DEF_MTU) {
3314 airo_print_err(ai->dev->name, "Bad size %d", len);
3315 goto done;
3316 }
3317 if (len == 0)
3318 goto done;
3319
3320 if (test_bit(FLAG_802_11, &ai->flags)) {
3321 bap_read(ai, &fc, sizeof (fc), BAP0);
3322 hdrlen = header_len(fc);
3323 } else
3324 hdrlen = ETH_ALEN * 2;
3325
3326 skb = dev_alloc_skb(len + hdrlen + 2 + 2);
3327 if (!skb) {
3328 ai->dev->stats.rx_dropped++;
3329 goto done;
3330 }
3331
3332 skb_reserve(skb, 2); /* This way the IP header is aligned */
3333 buffer = skb_put(skb, len + hdrlen);
3334 if (test_bit(FLAG_802_11, &ai->flags)) {
3335 buffer[0] = fc;
3336 bap_read(ai, buffer + 1, hdrlen - 2, BAP0);
3337 if (hdrlen == 24)
3338 bap_read(ai, tmpbuf, 6, BAP0);
3339
3340 bap_read(ai, &v, sizeof(v), BAP0);
3341 gap = le16_to_cpu(v);
3342 if (gap) {
3343 if (gap <= 8) {
3344 bap_read(ai, tmpbuf, gap, BAP0);
3345 } else {
3346 airo_print_err(ai->dev->name, "gaplen too "
3347 "big. Problems will follow...");
3348 }
3349 }
3350 bap_read(ai, buffer + hdrlen/2, len, BAP0);
3351 } else {
3352 MICBuffer micbuf;
3353
3354 bap_read(ai, buffer, ETH_ALEN * 2, BAP0);
3355 if (ai->micstats.enabled) {
3356 bap_read(ai, (__le16 *) &micbuf, sizeof (micbuf), BAP0);
3357 if (ntohs(micbuf.typelen) > 0x05DC)
3358 bap_setup(ai, fid, 0x44, BAP0);
3359 else {
3360 if (len <= sizeof (micbuf)) {
3361 dev_kfree_skb_irq(skb);
3362 goto done;
3363 }
3364
3365 len -= sizeof(micbuf);
3366 skb_trim(skb, len + hdrlen);
3367 }
3368 }
3369
3370 bap_read(ai, buffer + ETH_ALEN, len, BAP0);
3371 if (decapsulate(ai, &micbuf, (etherHead*) buffer, len))
3372 dev_kfree_skb_irq (skb);
3373 else
3374 success = 1;
3375 }
3376
3377 #ifdef WIRELESS_SPY
3378 if (success && (ai->spy_data.spy_number > 0)) {
3379 char *sa;
3380 struct iw_quality wstats;
3381
3382 /* Prepare spy data : addr + qual */
3383 if (!test_bit(FLAG_802_11, &ai->flags)) {
3384 sa = (char *) buffer + 6;
3385 bap_setup(ai, fid, 8, BAP0);
3386 bap_read(ai, (__le16 *) hdr.rssi, 2, BAP0);
3387 } else
3388 sa = (char *) buffer + 10;
3389 wstats.qual = hdr.rssi[0];
3390 if (ai->rssi)
3391 wstats.level = 0x100 - ai->rssi[hdr.rssi[1]].rssidBm;
3392 else
3393 wstats.level = (hdr.rssi[1] + 321) / 2;
3394 wstats.noise = ai->wstats.qual.noise;
3395 wstats.updated = IW_QUAL_LEVEL_UPDATED
3396 | IW_QUAL_QUAL_UPDATED
3397 | IW_QUAL_DBM;
3398 /* Update spy records */
3399 wireless_spy_update(ai->dev, sa, &wstats);
3400 }
3401 #endif /* WIRELESS_SPY */
3402
3403 done:
3404 OUT4500(ai, EVACK, EV_RX);
3405
3406 if (success) {
3407 if (test_bit(FLAG_802_11, &ai->flags)) {
3408 skb_reset_mac_header(skb);
3409 skb->pkt_type = PACKET_OTHERHOST;
3410 skb->dev = ai->wifidev;
3411 skb->protocol = htons(ETH_P_802_2);
3412 } else
3413 skb->protocol = eth_type_trans(skb, ai->dev);
3414 skb->ip_summed = CHECKSUM_NONE;
3415
3416 netif_rx(skb);
3417 }
3418 }
3419
airo_handle_tx(struct airo_info * ai,u16 status)3420 static void airo_handle_tx(struct airo_info *ai, u16 status)
3421 {
3422 int i, index = -1;
3423 u16 fid;
3424
3425 if (test_bit(FLAG_MPI, &ai->flags)) {
3426 unsigned long flags;
3427
3428 if (status & EV_TXEXC)
3429 get_tx_error(ai, -1);
3430
3431 spin_lock_irqsave(&ai->aux_lock, flags);
3432 if (!skb_queue_empty(&ai->txq)) {
3433 spin_unlock_irqrestore(&ai->aux_lock,flags);
3434 mpi_send_packet(ai->dev);
3435 } else {
3436 clear_bit(FLAG_PENDING_XMIT, &ai->flags);
3437 spin_unlock_irqrestore(&ai->aux_lock,flags);
3438 netif_wake_queue(ai->dev);
3439 }
3440 OUT4500(ai, EVACK, status & (EV_TX | EV_TXCPY | EV_TXEXC));
3441 return;
3442 }
3443
3444 fid = IN4500(ai, TXCOMPLFID);
3445
3446 for (i = 0; i < MAX_FIDS; i++) {
3447 if ((ai->fids[i] & 0xffff) == fid)
3448 index = i;
3449 }
3450
3451 if (index != -1) {
3452 if (status & EV_TXEXC)
3453 get_tx_error(ai, index);
3454
3455 OUT4500(ai, EVACK, status & (EV_TX | EV_TXEXC));
3456
3457 /* Set up to be used again */
3458 ai->fids[index] &= 0xffff;
3459 if (index < MAX_FIDS / 2) {
3460 if (!test_bit(FLAG_PENDING_XMIT, &ai->flags))
3461 netif_wake_queue(ai->dev);
3462 } else {
3463 if (!test_bit(FLAG_PENDING_XMIT11, &ai->flags))
3464 netif_wake_queue(ai->wifidev);
3465 }
3466 } else {
3467 OUT4500(ai, EVACK, status & (EV_TX | EV_TXCPY | EV_TXEXC));
3468 airo_print_err(ai->dev->name, "Unallocated FID was used to xmit");
3469 }
3470 }
3471
airo_interrupt(int irq,void * dev_id)3472 static irqreturn_t airo_interrupt(int irq, void *dev_id)
3473 {
3474 struct net_device *dev = dev_id;
3475 u16 status, savedInterrupts = 0;
3476 struct airo_info *ai = dev->ml_priv;
3477 int handled = 0;
3478
3479 if (!netif_device_present(dev))
3480 return IRQ_NONE;
3481
3482 for (;;) {
3483 status = IN4500(ai, EVSTAT);
3484 if (!(status & STATUS_INTS) || (status == 0xffff))
3485 break;
3486
3487 handled = 1;
3488
3489 if (status & EV_AWAKE) {
3490 OUT4500(ai, EVACK, EV_AWAKE);
3491 OUT4500(ai, EVACK, EV_AWAKE);
3492 }
3493
3494 if (!savedInterrupts) {
3495 savedInterrupts = IN4500(ai, EVINTEN);
3496 OUT4500(ai, EVINTEN, 0);
3497 }
3498
3499 if (status & EV_MIC) {
3500 OUT4500(ai, EVACK, EV_MIC);
3501 airo_handle_cisco_mic(ai);
3502 }
3503
3504 if (status & EV_LINK) {
3505 /* Link status changed */
3506 airo_handle_link(ai);
3507 }
3508
3509 /* Check to see if there is something to receive */
3510 if (status & EV_RX)
3511 airo_handle_rx(ai);
3512
3513 /* Check to see if a packet has been transmitted */
3514 if (status & (EV_TX | EV_TXCPY | EV_TXEXC))
3515 airo_handle_tx(ai, status);
3516
3517 if ( status & ~STATUS_INTS & ~IGNORE_INTS ) {
3518 airo_print_warn(ai->dev->name, "Got weird status %x",
3519 status & ~STATUS_INTS & ~IGNORE_INTS );
3520 }
3521 }
3522
3523 if (savedInterrupts)
3524 OUT4500(ai, EVINTEN, savedInterrupts);
3525
3526 return IRQ_RETVAL(handled);
3527 }
3528
3529 /*
3530 * Routines to talk to the card
3531 */
3532
3533 /*
3534 * This was originally written for the 4500, hence the name
3535 * NOTE: If use with 8bit mode and SMP bad things will happen!
3536 * Why would some one do 8 bit IO in an SMP machine?!?
3537 */
OUT4500(struct airo_info * ai,u16 reg,u16 val)3538 static void OUT4500( struct airo_info *ai, u16 reg, u16 val ) {
3539 if (test_bit(FLAG_MPI,&ai->flags))
3540 reg <<= 1;
3541 if ( !do8bitIO )
3542 outw( val, ai->dev->base_addr + reg );
3543 else {
3544 outb( val & 0xff, ai->dev->base_addr + reg );
3545 outb( val >> 8, ai->dev->base_addr + reg + 1 );
3546 }
3547 }
3548
IN4500(struct airo_info * ai,u16 reg)3549 static u16 IN4500( struct airo_info *ai, u16 reg ) {
3550 unsigned short rc;
3551
3552 if (test_bit(FLAG_MPI,&ai->flags))
3553 reg <<= 1;
3554 if ( !do8bitIO )
3555 rc = inw( ai->dev->base_addr + reg );
3556 else {
3557 rc = inb( ai->dev->base_addr + reg );
3558 rc += ((int)inb( ai->dev->base_addr + reg + 1 )) << 8;
3559 }
3560 return rc;
3561 }
3562
enable_MAC(struct airo_info * ai,int lock)3563 static int enable_MAC(struct airo_info *ai, int lock)
3564 {
3565 int rc;
3566 Cmd cmd;
3567 Resp rsp;
3568
3569 /* FLAG_RADIO_OFF : Radio disabled via /proc or Wireless Extensions
3570 * FLAG_RADIO_DOWN : Radio disabled via "ifconfig ethX down"
3571 * Note : we could try to use !netif_running(dev) in enable_MAC()
3572 * instead of this flag, but I don't trust it *within* the
3573 * open/close functions, and testing both flags together is
3574 * "cheaper" - Jean II */
3575 if (ai->flags & FLAG_RADIO_MASK) return SUCCESS;
3576
3577 if (lock && down_interruptible(&ai->sem))
3578 return -ERESTARTSYS;
3579
3580 if (!test_bit(FLAG_ENABLED, &ai->flags)) {
3581 memset(&cmd, 0, sizeof(cmd));
3582 cmd.cmd = MAC_ENABLE;
3583 rc = issuecommand(ai, &cmd, &rsp);
3584 if (rc == SUCCESS)
3585 set_bit(FLAG_ENABLED, &ai->flags);
3586 } else
3587 rc = SUCCESS;
3588
3589 if (lock)
3590 up(&ai->sem);
3591
3592 if (rc)
3593 airo_print_err(ai->dev->name, "Cannot enable MAC");
3594 else if ((rsp.status & 0xFF00) != 0) {
3595 airo_print_err(ai->dev->name, "Bad MAC enable reason=%x, "
3596 "rid=%x, offset=%d", rsp.rsp0, rsp.rsp1, rsp.rsp2);
3597 rc = ERROR;
3598 }
3599 return rc;
3600 }
3601
disable_MAC(struct airo_info * ai,int lock)3602 static void disable_MAC( struct airo_info *ai, int lock ) {
3603 Cmd cmd;
3604 Resp rsp;
3605
3606 if (lock == 1 && down_interruptible(&ai->sem))
3607 return;
3608
3609 if (test_bit(FLAG_ENABLED, &ai->flags)) {
3610 if (lock != 2) /* lock == 2 means don't disable carrier */
3611 netif_carrier_off(ai->dev);
3612 memset(&cmd, 0, sizeof(cmd));
3613 cmd.cmd = MAC_DISABLE; // disable in case already enabled
3614 issuecommand(ai, &cmd, &rsp);
3615 clear_bit(FLAG_ENABLED, &ai->flags);
3616 }
3617 if (lock == 1)
3618 up(&ai->sem);
3619 }
3620
enable_interrupts(struct airo_info * ai)3621 static void enable_interrupts( struct airo_info *ai ) {
3622 /* Enable the interrupts */
3623 OUT4500( ai, EVINTEN, STATUS_INTS );
3624 }
3625
disable_interrupts(struct airo_info * ai)3626 static void disable_interrupts( struct airo_info *ai ) {
3627 OUT4500( ai, EVINTEN, 0 );
3628 }
3629
mpi_receive_802_3(struct airo_info * ai)3630 static void mpi_receive_802_3(struct airo_info *ai)
3631 {
3632 RxFid rxd;
3633 int len = 0;
3634 struct sk_buff *skb;
3635 char *buffer;
3636 int off = 0;
3637 MICBuffer micbuf;
3638
3639 memcpy_fromio(&rxd, ai->rxfids[0].card_ram_off, sizeof(rxd));
3640 /* Make sure we got something */
3641 if (rxd.rdy && rxd.valid == 0) {
3642 len = rxd.len + 12;
3643 if (len < 12 || len > 2048)
3644 goto badrx;
3645
3646 skb = dev_alloc_skb(len);
3647 if (!skb) {
3648 ai->dev->stats.rx_dropped++;
3649 goto badrx;
3650 }
3651 buffer = skb_put(skb,len);
3652 memcpy(buffer, ai->rxfids[0].virtual_host_addr, ETH_ALEN * 2);
3653 if (ai->micstats.enabled) {
3654 memcpy(&micbuf,
3655 ai->rxfids[0].virtual_host_addr + ETH_ALEN * 2,
3656 sizeof(micbuf));
3657 if (ntohs(micbuf.typelen) <= 0x05DC) {
3658 if (len <= sizeof(micbuf) + ETH_ALEN * 2)
3659 goto badmic;
3660
3661 off = sizeof(micbuf);
3662 skb_trim (skb, len - off);
3663 }
3664 }
3665 memcpy(buffer + ETH_ALEN * 2,
3666 ai->rxfids[0].virtual_host_addr + ETH_ALEN * 2 + off,
3667 len - ETH_ALEN * 2 - off);
3668 if (decapsulate (ai, &micbuf, (etherHead*)buffer, len - off - ETH_ALEN * 2)) {
3669 badmic:
3670 dev_kfree_skb_irq (skb);
3671 goto badrx;
3672 }
3673 #ifdef WIRELESS_SPY
3674 if (ai->spy_data.spy_number > 0) {
3675 char *sa;
3676 struct iw_quality wstats;
3677 /* Prepare spy data : addr + qual */
3678 sa = buffer + ETH_ALEN;
3679 wstats.qual = 0; /* XXX Where do I get that info from ??? */
3680 wstats.level = 0;
3681 wstats.updated = 0;
3682 /* Update spy records */
3683 wireless_spy_update(ai->dev, sa, &wstats);
3684 }
3685 #endif /* WIRELESS_SPY */
3686
3687 skb->ip_summed = CHECKSUM_NONE;
3688 skb->protocol = eth_type_trans(skb, ai->dev);
3689 netif_rx(skb);
3690 }
3691 badrx:
3692 if (rxd.valid == 0) {
3693 rxd.valid = 1;
3694 rxd.rdy = 0;
3695 rxd.len = PKTSIZE;
3696 memcpy_toio(ai->rxfids[0].card_ram_off, &rxd, sizeof(rxd));
3697 }
3698 }
3699
mpi_receive_802_11(struct airo_info * ai)3700 static void mpi_receive_802_11(struct airo_info *ai)
3701 {
3702 RxFid rxd;
3703 struct sk_buff *skb = NULL;
3704 u16 len, hdrlen = 0;
3705 __le16 fc;
3706 struct rx_hdr hdr;
3707 u16 gap;
3708 u16 *buffer;
3709 char *ptr = ai->rxfids[0].virtual_host_addr + 4;
3710
3711 memcpy_fromio(&rxd, ai->rxfids[0].card_ram_off, sizeof(rxd));
3712 memcpy ((char *)&hdr, ptr, sizeof(hdr));
3713 ptr += sizeof(hdr);
3714 /* Bad CRC. Ignore packet */
3715 if (le16_to_cpu(hdr.status) & 2)
3716 hdr.len = 0;
3717 if (ai->wifidev == NULL)
3718 hdr.len = 0;
3719 len = le16_to_cpu(hdr.len);
3720 if (len > AIRO_DEF_MTU) {
3721 airo_print_err(ai->dev->name, "Bad size %d", len);
3722 goto badrx;
3723 }
3724 if (len == 0)
3725 goto badrx;
3726
3727 fc = get_unaligned((__le16 *)ptr);
3728 hdrlen = header_len(fc);
3729
3730 skb = dev_alloc_skb( len + hdrlen + 2 );
3731 if ( !skb ) {
3732 ai->dev->stats.rx_dropped++;
3733 goto badrx;
3734 }
3735 buffer = skb_put(skb, len + hdrlen);
3736 memcpy ((char *)buffer, ptr, hdrlen);
3737 ptr += hdrlen;
3738 if (hdrlen == 24)
3739 ptr += 6;
3740 gap = get_unaligned_le16(ptr);
3741 ptr += sizeof(__le16);
3742 if (gap) {
3743 if (gap <= 8)
3744 ptr += gap;
3745 else
3746 airo_print_err(ai->dev->name,
3747 "gaplen too big. Problems will follow...");
3748 }
3749 memcpy ((char *)buffer + hdrlen, ptr, len);
3750 ptr += len;
3751 #ifdef IW_WIRELESS_SPY /* defined in iw_handler.h */
3752 if (ai->spy_data.spy_number > 0) {
3753 char *sa;
3754 struct iw_quality wstats;
3755 /* Prepare spy data : addr + qual */
3756 sa = (char*)buffer + 10;
3757 wstats.qual = hdr.rssi[0];
3758 if (ai->rssi)
3759 wstats.level = 0x100 - ai->rssi[hdr.rssi[1]].rssidBm;
3760 else
3761 wstats.level = (hdr.rssi[1] + 321) / 2;
3762 wstats.noise = ai->wstats.qual.noise;
3763 wstats.updated = IW_QUAL_QUAL_UPDATED
3764 | IW_QUAL_LEVEL_UPDATED
3765 | IW_QUAL_DBM;
3766 /* Update spy records */
3767 wireless_spy_update(ai->dev, sa, &wstats);
3768 }
3769 #endif /* IW_WIRELESS_SPY */
3770 skb_reset_mac_header(skb);
3771 skb->pkt_type = PACKET_OTHERHOST;
3772 skb->dev = ai->wifidev;
3773 skb->protocol = htons(ETH_P_802_2);
3774 skb->ip_summed = CHECKSUM_NONE;
3775 netif_rx( skb );
3776
3777 badrx:
3778 if (rxd.valid == 0) {
3779 rxd.valid = 1;
3780 rxd.rdy = 0;
3781 rxd.len = PKTSIZE;
3782 memcpy_toio(ai->rxfids[0].card_ram_off, &rxd, sizeof(rxd));
3783 }
3784 }
3785
set_auth_type(struct airo_info * local,int auth_type)3786 static inline void set_auth_type(struct airo_info *local, int auth_type)
3787 {
3788 local->config.authType = auth_type;
3789 /* Cache the last auth type used (of AUTH_OPEN and AUTH_ENCRYPT).
3790 * Used by airo_set_auth()
3791 */
3792 if (auth_type == AUTH_OPEN || auth_type == AUTH_ENCRYPT)
3793 local->last_auth = auth_type;
3794 }
3795
setup_card(struct airo_info * ai,u8 * mac,int lock)3796 static u16 setup_card(struct airo_info *ai, u8 *mac, int lock)
3797 {
3798 Cmd cmd;
3799 Resp rsp;
3800 int status;
3801 SsidRid mySsid;
3802 __le16 lastindex;
3803 WepKeyRid wkr;
3804 int rc;
3805
3806 memset( &mySsid, 0, sizeof( mySsid ) );
3807 kfree (ai->flash);
3808 ai->flash = NULL;
3809
3810 /* The NOP is the first step in getting the card going */
3811 cmd.cmd = NOP;
3812 cmd.parm0 = cmd.parm1 = cmd.parm2 = 0;
3813 if (lock && down_interruptible(&ai->sem))
3814 return ERROR;
3815 if ( issuecommand( ai, &cmd, &rsp ) != SUCCESS ) {
3816 if (lock)
3817 up(&ai->sem);
3818 return ERROR;
3819 }
3820 disable_MAC( ai, 0);
3821
3822 // Let's figure out if we need to use the AUX port
3823 if (!test_bit(FLAG_MPI,&ai->flags)) {
3824 cmd.cmd = CMD_ENABLEAUX;
3825 if (issuecommand(ai, &cmd, &rsp) != SUCCESS) {
3826 if (lock)
3827 up(&ai->sem);
3828 airo_print_err(ai->dev->name, "Error checking for AUX port");
3829 return ERROR;
3830 }
3831 if (!aux_bap || rsp.status & 0xff00) {
3832 ai->bap_read = fast_bap_read;
3833 airo_print_dbg(ai->dev->name, "Doing fast bap_reads");
3834 } else {
3835 ai->bap_read = aux_bap_read;
3836 airo_print_dbg(ai->dev->name, "Doing AUX bap_reads");
3837 }
3838 }
3839 if (lock)
3840 up(&ai->sem);
3841 if (ai->config.len == 0) {
3842 int i;
3843 tdsRssiRid rssi_rid;
3844 CapabilityRid cap_rid;
3845
3846 kfree(ai->SSID);
3847 ai->SSID = NULL;
3848 // general configuration (read/modify/write)
3849 status = readConfigRid(ai, lock);
3850 if ( status != SUCCESS ) return ERROR;
3851
3852 status = readCapabilityRid(ai, &cap_rid, lock);
3853 if ( status != SUCCESS ) return ERROR;
3854
3855 status = PC4500_readrid(ai,RID_RSSI,&rssi_rid,sizeof(rssi_rid),lock);
3856 if ( status == SUCCESS ) {
3857 if (ai->rssi || (ai->rssi = kmalloc(512, GFP_KERNEL)) != NULL)
3858 memcpy(ai->rssi, (u8*)&rssi_rid + 2, 512); /* Skip RID length member */
3859 }
3860 else {
3861 kfree(ai->rssi);
3862 ai->rssi = NULL;
3863 if (cap_rid.softCap & cpu_to_le16(8))
3864 ai->config.rmode |= RXMODE_NORMALIZED_RSSI;
3865 else
3866 airo_print_warn(ai->dev->name, "unknown received signal "
3867 "level scale");
3868 }
3869 ai->config.opmode = adhoc ? MODE_STA_IBSS : MODE_STA_ESS;
3870 set_auth_type(ai, AUTH_OPEN);
3871 ai->config.modulation = MOD_CCK;
3872
3873 if (le16_to_cpu(cap_rid.len) >= sizeof(cap_rid) &&
3874 (cap_rid.extSoftCap & cpu_to_le16(1)) &&
3875 micsetup(ai) == SUCCESS) {
3876 ai->config.opmode |= MODE_MIC;
3877 set_bit(FLAG_MIC_CAPABLE, &ai->flags);
3878 }
3879
3880 /* Save off the MAC */
3881 for( i = 0; i < ETH_ALEN; i++ ) {
3882 mac[i] = ai->config.macAddr[i];
3883 }
3884
3885 /* Check to see if there are any insmod configured
3886 rates to add */
3887 if ( rates[0] ) {
3888 memset(ai->config.rates,0,sizeof(ai->config.rates));
3889 for( i = 0; i < 8 && rates[i]; i++ ) {
3890 ai->config.rates[i] = rates[i];
3891 }
3892 }
3893 set_bit (FLAG_COMMIT, &ai->flags);
3894 }
3895
3896 /* Setup the SSIDs if present */
3897 if ( ssids[0] ) {
3898 int i;
3899 for( i = 0; i < 3 && ssids[i]; i++ ) {
3900 size_t len = strlen(ssids[i]);
3901 if (len > 32)
3902 len = 32;
3903 mySsid.ssids[i].len = cpu_to_le16(len);
3904 memcpy(mySsid.ssids[i].ssid, ssids[i], len);
3905 }
3906 mySsid.len = cpu_to_le16(sizeof(mySsid));
3907 }
3908
3909 status = writeConfigRid(ai, lock);
3910 if ( status != SUCCESS ) return ERROR;
3911
3912 /* Set up the SSID list */
3913 if ( ssids[0] ) {
3914 status = writeSsidRid(ai, &mySsid, lock);
3915 if ( status != SUCCESS ) return ERROR;
3916 }
3917
3918 status = enable_MAC(ai, lock);
3919 if (status != SUCCESS)
3920 return ERROR;
3921
3922 /* Grab the initial wep key, we gotta save it for auto_wep */
3923 rc = readWepKeyRid(ai, &wkr, 1, lock);
3924 if (rc == SUCCESS) do {
3925 lastindex = wkr.kindex;
3926 if (wkr.kindex == cpu_to_le16(0xffff)) {
3927 ai->defindex = wkr.mac[0];
3928 }
3929 rc = readWepKeyRid(ai, &wkr, 0, lock);
3930 } while(lastindex != wkr.kindex);
3931
3932 try_auto_wep(ai);
3933
3934 return SUCCESS;
3935 }
3936
issuecommand(struct airo_info * ai,Cmd * pCmd,Resp * pRsp)3937 static u16 issuecommand(struct airo_info *ai, Cmd *pCmd, Resp *pRsp) {
3938 // Im really paranoid about letting it run forever!
3939 int max_tries = 600000;
3940
3941 if (IN4500(ai, EVSTAT) & EV_CMD)
3942 OUT4500(ai, EVACK, EV_CMD);
3943
3944 OUT4500(ai, PARAM0, pCmd->parm0);
3945 OUT4500(ai, PARAM1, pCmd->parm1);
3946 OUT4500(ai, PARAM2, pCmd->parm2);
3947 OUT4500(ai, COMMAND, pCmd->cmd);
3948
3949 while (max_tries-- && (IN4500(ai, EVSTAT) & EV_CMD) == 0) {
3950 if ((IN4500(ai, COMMAND)) == pCmd->cmd)
3951 // PC4500 didn't notice command, try again
3952 OUT4500(ai, COMMAND, pCmd->cmd);
3953 if (!in_atomic() && (max_tries & 255) == 0)
3954 schedule();
3955 }
3956
3957 if ( max_tries == -1 ) {
3958 airo_print_err(ai->dev->name,
3959 "Max tries exceeded when issuing command");
3960 if (IN4500(ai, COMMAND) & COMMAND_BUSY)
3961 OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
3962 return ERROR;
3963 }
3964
3965 // command completed
3966 pRsp->status = IN4500(ai, STATUS);
3967 pRsp->rsp0 = IN4500(ai, RESP0);
3968 pRsp->rsp1 = IN4500(ai, RESP1);
3969 pRsp->rsp2 = IN4500(ai, RESP2);
3970 if ((pRsp->status & 0xff00)!=0 && pCmd->cmd != CMD_SOFTRESET)
3971 airo_print_err(ai->dev->name,
3972 "cmd:%x status:%x rsp0:%x rsp1:%x rsp2:%x",
3973 pCmd->cmd, pRsp->status, pRsp->rsp0, pRsp->rsp1,
3974 pRsp->rsp2);
3975
3976 // clear stuck command busy if necessary
3977 if (IN4500(ai, COMMAND) & COMMAND_BUSY) {
3978 OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
3979 }
3980 // acknowledge processing the status/response
3981 OUT4500(ai, EVACK, EV_CMD);
3982
3983 return SUCCESS;
3984 }
3985
3986 /* Sets up the bap to start exchange data. whichbap should
3987 * be one of the BAP0 or BAP1 defines. Locks should be held before
3988 * calling! */
bap_setup(struct airo_info * ai,u16 rid,u16 offset,int whichbap)3989 static int bap_setup(struct airo_info *ai, u16 rid, u16 offset, int whichbap )
3990 {
3991 int timeout = 50;
3992 int max_tries = 3;
3993
3994 OUT4500(ai, SELECT0+whichbap, rid);
3995 OUT4500(ai, OFFSET0+whichbap, offset);
3996 while (1) {
3997 int status = IN4500(ai, OFFSET0+whichbap);
3998 if (status & BAP_BUSY) {
3999 /* This isn't really a timeout, but its kinda
4000 close */
4001 if (timeout--) {
4002 continue;
4003 }
4004 } else if ( status & BAP_ERR ) {
4005 /* invalid rid or offset */
4006 airo_print_err(ai->dev->name, "BAP error %x %d",
4007 status, whichbap );
4008 return ERROR;
4009 } else if (status & BAP_DONE) { // success
4010 return SUCCESS;
4011 }
4012 if ( !(max_tries--) ) {
4013 airo_print_err(ai->dev->name,
4014 "BAP setup error too many retries\n");
4015 return ERROR;
4016 }
4017 // -- PC4500 missed it, try again
4018 OUT4500(ai, SELECT0+whichbap, rid);
4019 OUT4500(ai, OFFSET0+whichbap, offset);
4020 timeout = 50;
4021 }
4022 }
4023
4024 /* should only be called by aux_bap_read. This aux function and the
4025 following use concepts not documented in the developers guide. I
4026 got them from a patch given to my by Aironet */
aux_setup(struct airo_info * ai,u16 page,u16 offset,u16 * len)4027 static u16 aux_setup(struct airo_info *ai, u16 page,
4028 u16 offset, u16 *len)
4029 {
4030 u16 next;
4031
4032 OUT4500(ai, AUXPAGE, page);
4033 OUT4500(ai, AUXOFF, 0);
4034 next = IN4500(ai, AUXDATA);
4035 *len = IN4500(ai, AUXDATA)&0xff;
4036 if (offset != 4) OUT4500(ai, AUXOFF, offset);
4037 return next;
4038 }
4039
4040 /* requires call to bap_setup() first */
aux_bap_read(struct airo_info * ai,__le16 * pu16Dst,int bytelen,int whichbap)4041 static int aux_bap_read(struct airo_info *ai, __le16 *pu16Dst,
4042 int bytelen, int whichbap)
4043 {
4044 u16 len;
4045 u16 page;
4046 u16 offset;
4047 u16 next;
4048 int words;
4049 int i;
4050 unsigned long flags;
4051
4052 spin_lock_irqsave(&ai->aux_lock, flags);
4053 page = IN4500(ai, SWS0+whichbap);
4054 offset = IN4500(ai, SWS2+whichbap);
4055 next = aux_setup(ai, page, offset, &len);
4056 words = (bytelen+1)>>1;
4057
4058 for (i=0; i<words;) {
4059 int count;
4060 count = (len>>1) < (words-i) ? (len>>1) : (words-i);
4061 if ( !do8bitIO )
4062 insw( ai->dev->base_addr+DATA0+whichbap,
4063 pu16Dst+i,count );
4064 else
4065 insb( ai->dev->base_addr+DATA0+whichbap,
4066 pu16Dst+i, count << 1 );
4067 i += count;
4068 if (i<words) {
4069 next = aux_setup(ai, next, 4, &len);
4070 }
4071 }
4072 spin_unlock_irqrestore(&ai->aux_lock, flags);
4073 return SUCCESS;
4074 }
4075
4076
4077 /* requires call to bap_setup() first */
fast_bap_read(struct airo_info * ai,__le16 * pu16Dst,int bytelen,int whichbap)4078 static int fast_bap_read(struct airo_info *ai, __le16 *pu16Dst,
4079 int bytelen, int whichbap)
4080 {
4081 bytelen = (bytelen + 1) & (~1); // round up to even value
4082 if ( !do8bitIO )
4083 insw( ai->dev->base_addr+DATA0+whichbap, pu16Dst, bytelen>>1 );
4084 else
4085 insb( ai->dev->base_addr+DATA0+whichbap, pu16Dst, bytelen );
4086 return SUCCESS;
4087 }
4088
4089 /* requires call to bap_setup() first */
bap_write(struct airo_info * ai,const __le16 * pu16Src,int bytelen,int whichbap)4090 static int bap_write(struct airo_info *ai, const __le16 *pu16Src,
4091 int bytelen, int whichbap)
4092 {
4093 bytelen = (bytelen + 1) & (~1); // round up to even value
4094 if ( !do8bitIO )
4095 outsw( ai->dev->base_addr+DATA0+whichbap,
4096 pu16Src, bytelen>>1 );
4097 else
4098 outsb( ai->dev->base_addr+DATA0+whichbap, pu16Src, bytelen );
4099 return SUCCESS;
4100 }
4101
PC4500_accessrid(struct airo_info * ai,u16 rid,u16 accmd)4102 static int PC4500_accessrid(struct airo_info *ai, u16 rid, u16 accmd)
4103 {
4104 Cmd cmd; /* for issuing commands */
4105 Resp rsp; /* response from commands */
4106 u16 status;
4107
4108 memset(&cmd, 0, sizeof(cmd));
4109 cmd.cmd = accmd;
4110 cmd.parm0 = rid;
4111 status = issuecommand(ai, &cmd, &rsp);
4112 if (status != 0) return status;
4113 if ( (rsp.status & 0x7F00) != 0) {
4114 return (accmd << 8) + (rsp.rsp0 & 0xFF);
4115 }
4116 return 0;
4117 }
4118
4119 /* Note, that we are using BAP1 which is also used by transmit, so
4120 * we must get a lock. */
PC4500_readrid(struct airo_info * ai,u16 rid,void * pBuf,int len,int lock)4121 static int PC4500_readrid(struct airo_info *ai, u16 rid, void *pBuf, int len, int lock)
4122 {
4123 u16 status;
4124 int rc = SUCCESS;
4125
4126 if (lock) {
4127 if (down_interruptible(&ai->sem))
4128 return ERROR;
4129 }
4130 if (test_bit(FLAG_MPI,&ai->flags)) {
4131 Cmd cmd;
4132 Resp rsp;
4133
4134 memset(&cmd, 0, sizeof(cmd));
4135 memset(&rsp, 0, sizeof(rsp));
4136 ai->config_desc.rid_desc.valid = 1;
4137 ai->config_desc.rid_desc.len = RIDSIZE;
4138 ai->config_desc.rid_desc.rid = 0;
4139 ai->config_desc.rid_desc.host_addr = ai->ridbus;
4140
4141 cmd.cmd = CMD_ACCESS;
4142 cmd.parm0 = rid;
4143
4144 memcpy_toio(ai->config_desc.card_ram_off,
4145 &ai->config_desc.rid_desc, sizeof(Rid));
4146
4147 rc = issuecommand(ai, &cmd, &rsp);
4148
4149 if (rsp.status & 0x7f00)
4150 rc = rsp.rsp0;
4151 if (!rc)
4152 memcpy(pBuf, ai->config_desc.virtual_host_addr, len);
4153 goto done;
4154 } else {
4155 if ((status = PC4500_accessrid(ai, rid, CMD_ACCESS))!=SUCCESS) {
4156 rc = status;
4157 goto done;
4158 }
4159 if (bap_setup(ai, rid, 0, BAP1) != SUCCESS) {
4160 rc = ERROR;
4161 goto done;
4162 }
4163 // read the rid length field
4164 bap_read(ai, pBuf, 2, BAP1);
4165 // length for remaining part of rid
4166 len = min(len, (int)le16_to_cpu(*(__le16*)pBuf)) - 2;
4167
4168 if ( len <= 2 ) {
4169 airo_print_err(ai->dev->name,
4170 "Rid %x has a length of %d which is too short",
4171 (int)rid, (int)len );
4172 rc = ERROR;
4173 goto done;
4174 }
4175 // read remainder of the rid
4176 rc = bap_read(ai, ((__le16*)pBuf)+1, len, BAP1);
4177 }
4178 done:
4179 if (lock)
4180 up(&ai->sem);
4181 return rc;
4182 }
4183
4184 /* Note, that we are using BAP1 which is also used by transmit, so
4185 * make sure this isn't called when a transmit is happening */
PC4500_writerid(struct airo_info * ai,u16 rid,const void * pBuf,int len,int lock)4186 static int PC4500_writerid(struct airo_info *ai, u16 rid,
4187 const void *pBuf, int len, int lock)
4188 {
4189 u16 status;
4190 int rc = SUCCESS;
4191
4192 *(__le16*)pBuf = cpu_to_le16((u16)len);
4193
4194 if (lock) {
4195 if (down_interruptible(&ai->sem))
4196 return ERROR;
4197 }
4198 if (test_bit(FLAG_MPI,&ai->flags)) {
4199 Cmd cmd;
4200 Resp rsp;
4201
4202 if (test_bit(FLAG_ENABLED, &ai->flags) && (RID_WEP_TEMP != rid))
4203 airo_print_err(ai->dev->name,
4204 "%s: MAC should be disabled (rid=%04x)",
4205 __func__, rid);
4206 memset(&cmd, 0, sizeof(cmd));
4207 memset(&rsp, 0, sizeof(rsp));
4208
4209 ai->config_desc.rid_desc.valid = 1;
4210 ai->config_desc.rid_desc.len = *((u16 *)pBuf);
4211 ai->config_desc.rid_desc.rid = 0;
4212
4213 cmd.cmd = CMD_WRITERID;
4214 cmd.parm0 = rid;
4215
4216 memcpy_toio(ai->config_desc.card_ram_off,
4217 &ai->config_desc.rid_desc, sizeof(Rid));
4218
4219 if (len < 4 || len > 2047) {
4220 airo_print_err(ai->dev->name, "%s: len=%d", __func__, len);
4221 rc = -1;
4222 } else {
4223 memcpy(ai->config_desc.virtual_host_addr,
4224 pBuf, len);
4225
4226 rc = issuecommand(ai, &cmd, &rsp);
4227 if ((rc & 0xff00) != 0) {
4228 airo_print_err(ai->dev->name, "%s: Write rid Error %d",
4229 __func__, rc);
4230 airo_print_err(ai->dev->name, "%s: Cmd=%04x",
4231 __func__, cmd.cmd);
4232 }
4233
4234 if ((rsp.status & 0x7f00))
4235 rc = rsp.rsp0;
4236 }
4237 } else {
4238 // --- first access so that we can write the rid data
4239 if ( (status = PC4500_accessrid(ai, rid, CMD_ACCESS)) != 0) {
4240 rc = status;
4241 goto done;
4242 }
4243 // --- now write the rid data
4244 if (bap_setup(ai, rid, 0, BAP1) != SUCCESS) {
4245 rc = ERROR;
4246 goto done;
4247 }
4248 bap_write(ai, pBuf, len, BAP1);
4249 // ---now commit the rid data
4250 rc = PC4500_accessrid(ai, rid, 0x100|CMD_ACCESS);
4251 }
4252 done:
4253 if (lock)
4254 up(&ai->sem);
4255 return rc;
4256 }
4257
4258 /* Allocates a FID to be used for transmitting packets. We only use
4259 one for now. */
transmit_allocate(struct airo_info * ai,int lenPayload,int raw)4260 static u16 transmit_allocate(struct airo_info *ai, int lenPayload, int raw)
4261 {
4262 unsigned int loop = 3000;
4263 Cmd cmd;
4264 Resp rsp;
4265 u16 txFid;
4266 __le16 txControl;
4267
4268 cmd.cmd = CMD_ALLOCATETX;
4269 cmd.parm0 = lenPayload;
4270 if (down_interruptible(&ai->sem))
4271 return ERROR;
4272 if (issuecommand(ai, &cmd, &rsp) != SUCCESS) {
4273 txFid = ERROR;
4274 goto done;
4275 }
4276 if ( (rsp.status & 0xFF00) != 0) {
4277 txFid = ERROR;
4278 goto done;
4279 }
4280 /* wait for the allocate event/indication
4281 * It makes me kind of nervous that this can just sit here and spin,
4282 * but in practice it only loops like four times. */
4283 while (((IN4500(ai, EVSTAT) & EV_ALLOC) == 0) && --loop);
4284 if (!loop) {
4285 txFid = ERROR;
4286 goto done;
4287 }
4288
4289 // get the allocated fid and acknowledge
4290 txFid = IN4500(ai, TXALLOCFID);
4291 OUT4500(ai, EVACK, EV_ALLOC);
4292
4293 /* The CARD is pretty cool since it converts the ethernet packet
4294 * into 802.11. Also note that we don't release the FID since we
4295 * will be using the same one over and over again. */
4296 /* We only have to setup the control once since we are not
4297 * releasing the fid. */
4298 if (raw)
4299 txControl = cpu_to_le16(TXCTL_TXOK | TXCTL_TXEX | TXCTL_802_11
4300 | TXCTL_ETHERNET | TXCTL_NORELEASE);
4301 else
4302 txControl = cpu_to_le16(TXCTL_TXOK | TXCTL_TXEX | TXCTL_802_3
4303 | TXCTL_ETHERNET | TXCTL_NORELEASE);
4304 if (bap_setup(ai, txFid, 0x0008, BAP1) != SUCCESS)
4305 txFid = ERROR;
4306 else
4307 bap_write(ai, &txControl, sizeof(txControl), BAP1);
4308
4309 done:
4310 up(&ai->sem);
4311
4312 return txFid;
4313 }
4314
4315 /* In general BAP1 is dedicated to transmiting packets. However,
4316 since we need a BAP when accessing RIDs, we also use BAP1 for that.
4317 Make sure the BAP1 spinlock is held when this is called. */
transmit_802_3_packet(struct airo_info * ai,int len,char * pPacket)4318 static int transmit_802_3_packet(struct airo_info *ai, int len, char *pPacket)
4319 {
4320 __le16 payloadLen;
4321 Cmd cmd;
4322 Resp rsp;
4323 int miclen = 0;
4324 u16 txFid = len;
4325 MICBuffer pMic;
4326
4327 len >>= 16;
4328
4329 if (len <= ETH_ALEN * 2) {
4330 airo_print_warn(ai->dev->name, "Short packet %d", len);
4331 return ERROR;
4332 }
4333 len -= ETH_ALEN * 2;
4334
4335 if (test_bit(FLAG_MIC_CAPABLE, &ai->flags) && ai->micstats.enabled &&
4336 (ntohs(((__be16 *)pPacket)[6]) != 0x888E)) {
4337 if (encapsulate(ai,(etherHead *)pPacket,&pMic,len) != SUCCESS)
4338 return ERROR;
4339 miclen = sizeof(pMic);
4340 }
4341 // packet is destination[6], source[6], payload[len-12]
4342 // write the payload length and dst/src/payload
4343 if (bap_setup(ai, txFid, 0x0036, BAP1) != SUCCESS) return ERROR;
4344 /* The hardware addresses aren't counted as part of the payload, so
4345 * we have to subtract the 12 bytes for the addresses off */
4346 payloadLen = cpu_to_le16(len + miclen);
4347 bap_write(ai, &payloadLen, sizeof(payloadLen),BAP1);
4348 bap_write(ai, (__le16*)pPacket, sizeof(etherHead), BAP1);
4349 if (miclen)
4350 bap_write(ai, (__le16*)&pMic, miclen, BAP1);
4351 bap_write(ai, (__le16*)(pPacket + sizeof(etherHead)), len, BAP1);
4352 // issue the transmit command
4353 memset( &cmd, 0, sizeof( cmd ) );
4354 cmd.cmd = CMD_TRANSMIT;
4355 cmd.parm0 = txFid;
4356 if (issuecommand(ai, &cmd, &rsp) != SUCCESS) return ERROR;
4357 if ( (rsp.status & 0xFF00) != 0) return ERROR;
4358 return SUCCESS;
4359 }
4360
transmit_802_11_packet(struct airo_info * ai,int len,char * pPacket)4361 static int transmit_802_11_packet(struct airo_info *ai, int len, char *pPacket)
4362 {
4363 __le16 fc, payloadLen;
4364 Cmd cmd;
4365 Resp rsp;
4366 int hdrlen;
4367 static u8 tail[(30-10) + 2 + 6] = {[30-10] = 6};
4368 /* padding of header to full size + le16 gaplen (6) + gaplen bytes */
4369 u16 txFid = len;
4370 len >>= 16;
4371
4372 fc = *(__le16*)pPacket;
4373 hdrlen = header_len(fc);
4374
4375 if (len < hdrlen) {
4376 airo_print_warn(ai->dev->name, "Short packet %d", len);
4377 return ERROR;
4378 }
4379
4380 /* packet is 802.11 header + payload
4381 * write the payload length and dst/src/payload */
4382 if (bap_setup(ai, txFid, 6, BAP1) != SUCCESS) return ERROR;
4383 /* The 802.11 header aren't counted as part of the payload, so
4384 * we have to subtract the header bytes off */
4385 payloadLen = cpu_to_le16(len-hdrlen);
4386 bap_write(ai, &payloadLen, sizeof(payloadLen),BAP1);
4387 if (bap_setup(ai, txFid, 0x0014, BAP1) != SUCCESS) return ERROR;
4388 bap_write(ai, (__le16 *)pPacket, hdrlen, BAP1);
4389 bap_write(ai, (__le16 *)(tail + (hdrlen - 10)), 38 - hdrlen, BAP1);
4390
4391 bap_write(ai, (__le16 *)(pPacket + hdrlen), len - hdrlen, BAP1);
4392 // issue the transmit command
4393 memset( &cmd, 0, sizeof( cmd ) );
4394 cmd.cmd = CMD_TRANSMIT;
4395 cmd.parm0 = txFid;
4396 if (issuecommand(ai, &cmd, &rsp) != SUCCESS) return ERROR;
4397 if ( (rsp.status & 0xFF00) != 0) return ERROR;
4398 return SUCCESS;
4399 }
4400
4401 /*
4402 * This is the proc_fs routines. It is a bit messier than I would
4403 * like! Feel free to clean it up!
4404 */
4405
4406 static ssize_t proc_read( struct file *file,
4407 char __user *buffer,
4408 size_t len,
4409 loff_t *offset);
4410
4411 static ssize_t proc_write( struct file *file,
4412 const char __user *buffer,
4413 size_t len,
4414 loff_t *offset );
4415 static int proc_close( struct inode *inode, struct file *file );
4416
4417 static int proc_stats_open( struct inode *inode, struct file *file );
4418 static int proc_statsdelta_open( struct inode *inode, struct file *file );
4419 static int proc_status_open( struct inode *inode, struct file *file );
4420 static int proc_SSID_open( struct inode *inode, struct file *file );
4421 static int proc_APList_open( struct inode *inode, struct file *file );
4422 static int proc_BSSList_open( struct inode *inode, struct file *file );
4423 static int proc_config_open( struct inode *inode, struct file *file );
4424 static int proc_wepkey_open( struct inode *inode, struct file *file );
4425
4426 static const struct file_operations proc_statsdelta_ops = {
4427 .owner = THIS_MODULE,
4428 .read = proc_read,
4429 .open = proc_statsdelta_open,
4430 .release = proc_close,
4431 .llseek = default_llseek,
4432 };
4433
4434 static const struct file_operations proc_stats_ops = {
4435 .owner = THIS_MODULE,
4436 .read = proc_read,
4437 .open = proc_stats_open,
4438 .release = proc_close,
4439 .llseek = default_llseek,
4440 };
4441
4442 static const struct file_operations proc_status_ops = {
4443 .owner = THIS_MODULE,
4444 .read = proc_read,
4445 .open = proc_status_open,
4446 .release = proc_close,
4447 .llseek = default_llseek,
4448 };
4449
4450 static const struct file_operations proc_SSID_ops = {
4451 .owner = THIS_MODULE,
4452 .read = proc_read,
4453 .write = proc_write,
4454 .open = proc_SSID_open,
4455 .release = proc_close,
4456 .llseek = default_llseek,
4457 };
4458
4459 static const struct file_operations proc_BSSList_ops = {
4460 .owner = THIS_MODULE,
4461 .read = proc_read,
4462 .write = proc_write,
4463 .open = proc_BSSList_open,
4464 .release = proc_close,
4465 .llseek = default_llseek,
4466 };
4467
4468 static const struct file_operations proc_APList_ops = {
4469 .owner = THIS_MODULE,
4470 .read = proc_read,
4471 .write = proc_write,
4472 .open = proc_APList_open,
4473 .release = proc_close,
4474 .llseek = default_llseek,
4475 };
4476
4477 static const struct file_operations proc_config_ops = {
4478 .owner = THIS_MODULE,
4479 .read = proc_read,
4480 .write = proc_write,
4481 .open = proc_config_open,
4482 .release = proc_close,
4483 .llseek = default_llseek,
4484 };
4485
4486 static const struct file_operations proc_wepkey_ops = {
4487 .owner = THIS_MODULE,
4488 .read = proc_read,
4489 .write = proc_write,
4490 .open = proc_wepkey_open,
4491 .release = proc_close,
4492 .llseek = default_llseek,
4493 };
4494
4495 static struct proc_dir_entry *airo_entry;
4496
4497 struct proc_data {
4498 int release_buffer;
4499 int readlen;
4500 char *rbuffer;
4501 int writelen;
4502 int maxwritelen;
4503 char *wbuffer;
4504 void (*on_close) (struct inode *, struct file *);
4505 };
4506
setup_proc_entry(struct net_device * dev,struct airo_info * apriv)4507 static int setup_proc_entry( struct net_device *dev,
4508 struct airo_info *apriv ) {
4509 struct proc_dir_entry *entry;
4510
4511 /* First setup the device directory */
4512 strcpy(apriv->proc_name,dev->name);
4513 apriv->proc_entry = proc_mkdir_mode(apriv->proc_name, airo_perm,
4514 airo_entry);
4515 if (!apriv->proc_entry)
4516 return -ENOMEM;
4517 proc_set_user(apriv->proc_entry, proc_kuid, proc_kgid);
4518
4519 /* Setup the StatsDelta */
4520 entry = proc_create_data("StatsDelta", 0444 & proc_perm,
4521 apriv->proc_entry, &proc_statsdelta_ops, dev);
4522 if (!entry)
4523 goto fail;
4524 proc_set_user(entry, proc_kuid, proc_kgid);
4525
4526 /* Setup the Stats */
4527 entry = proc_create_data("Stats", 0444 & proc_perm,
4528 apriv->proc_entry, &proc_stats_ops, dev);
4529 if (!entry)
4530 goto fail;
4531 proc_set_user(entry, proc_kuid, proc_kgid);
4532
4533 /* Setup the Status */
4534 entry = proc_create_data("Status", 0444 & proc_perm,
4535 apriv->proc_entry, &proc_status_ops, dev);
4536 if (!entry)
4537 goto fail;
4538 proc_set_user(entry, proc_kuid, proc_kgid);
4539
4540 /* Setup the Config */
4541 entry = proc_create_data("Config", proc_perm,
4542 apriv->proc_entry, &proc_config_ops, dev);
4543 if (!entry)
4544 goto fail;
4545 proc_set_user(entry, proc_kuid, proc_kgid);
4546
4547 /* Setup the SSID */
4548 entry = proc_create_data("SSID", proc_perm,
4549 apriv->proc_entry, &proc_SSID_ops, dev);
4550 if (!entry)
4551 goto fail;
4552 proc_set_user(entry, proc_kuid, proc_kgid);
4553
4554 /* Setup the APList */
4555 entry = proc_create_data("APList", proc_perm,
4556 apriv->proc_entry, &proc_APList_ops, dev);
4557 if (!entry)
4558 goto fail;
4559 proc_set_user(entry, proc_kuid, proc_kgid);
4560
4561 /* Setup the BSSList */
4562 entry = proc_create_data("BSSList", proc_perm,
4563 apriv->proc_entry, &proc_BSSList_ops, dev);
4564 if (!entry)
4565 goto fail;
4566 proc_set_user(entry, proc_kuid, proc_kgid);
4567
4568 /* Setup the WepKey */
4569 entry = proc_create_data("WepKey", proc_perm,
4570 apriv->proc_entry, &proc_wepkey_ops, dev);
4571 if (!entry)
4572 goto fail;
4573 proc_set_user(entry, proc_kuid, proc_kgid);
4574 return 0;
4575
4576 fail:
4577 remove_proc_subtree(apriv->proc_name, airo_entry);
4578 return -ENOMEM;
4579 }
4580
takedown_proc_entry(struct net_device * dev,struct airo_info * apriv)4581 static int takedown_proc_entry( struct net_device *dev,
4582 struct airo_info *apriv )
4583 {
4584 remove_proc_subtree(apriv->proc_name, airo_entry);
4585 return 0;
4586 }
4587
4588 /*
4589 * What we want from the proc_fs is to be able to efficiently read
4590 * and write the configuration. To do this, we want to read the
4591 * configuration when the file is opened and write it when the file is
4592 * closed. So basically we allocate a read buffer at open and fill it
4593 * with data, and allocate a write buffer and read it at close.
4594 */
4595
4596 /*
4597 * The read routine is generic, it relies on the preallocated rbuffer
4598 * to supply the data.
4599 */
proc_read(struct file * file,char __user * buffer,size_t len,loff_t * offset)4600 static ssize_t proc_read( struct file *file,
4601 char __user *buffer,
4602 size_t len,
4603 loff_t *offset )
4604 {
4605 struct proc_data *priv = file->private_data;
4606
4607 if (!priv->rbuffer)
4608 return -EINVAL;
4609
4610 return simple_read_from_buffer(buffer, len, offset, priv->rbuffer,
4611 priv->readlen);
4612 }
4613
4614 /*
4615 * The write routine is generic, it fills in a preallocated rbuffer
4616 * to supply the data.
4617 */
proc_write(struct file * file,const char __user * buffer,size_t len,loff_t * offset)4618 static ssize_t proc_write( struct file *file,
4619 const char __user *buffer,
4620 size_t len,
4621 loff_t *offset )
4622 {
4623 ssize_t ret;
4624 struct proc_data *priv = file->private_data;
4625
4626 if (!priv->wbuffer)
4627 return -EINVAL;
4628
4629 ret = simple_write_to_buffer(priv->wbuffer, priv->maxwritelen, offset,
4630 buffer, len);
4631 if (ret > 0)
4632 priv->writelen = max_t(int, priv->writelen, *offset);
4633
4634 return ret;
4635 }
4636
proc_status_open(struct inode * inode,struct file * file)4637 static int proc_status_open(struct inode *inode, struct file *file)
4638 {
4639 struct proc_data *data;
4640 struct net_device *dev = PDE_DATA(inode);
4641 struct airo_info *apriv = dev->ml_priv;
4642 CapabilityRid cap_rid;
4643 StatusRid status_rid;
4644 u16 mode;
4645 int i;
4646
4647 if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
4648 return -ENOMEM;
4649 data = file->private_data;
4650 if ((data->rbuffer = kmalloc( 2048, GFP_KERNEL )) == NULL) {
4651 kfree (file->private_data);
4652 return -ENOMEM;
4653 }
4654
4655 readStatusRid(apriv, &status_rid, 1);
4656 readCapabilityRid(apriv, &cap_rid, 1);
4657
4658 mode = le16_to_cpu(status_rid.mode);
4659
4660 i = sprintf(data->rbuffer, "Status: %s%s%s%s%s%s%s%s%s\n",
4661 mode & 1 ? "CFG ": "",
4662 mode & 2 ? "ACT ": "",
4663 mode & 0x10 ? "SYN ": "",
4664 mode & 0x20 ? "LNK ": "",
4665 mode & 0x40 ? "LEAP ": "",
4666 mode & 0x80 ? "PRIV ": "",
4667 mode & 0x100 ? "KEY ": "",
4668 mode & 0x200 ? "WEP ": "",
4669 mode & 0x8000 ? "ERR ": "");
4670 sprintf( data->rbuffer+i, "Mode: %x\n"
4671 "Signal Strength: %d\n"
4672 "Signal Quality: %d\n"
4673 "SSID: %-.*s\n"
4674 "AP: %-.16s\n"
4675 "Freq: %d\n"
4676 "BitRate: %dmbs\n"
4677 "Driver Version: %s\n"
4678 "Device: %s\nManufacturer: %s\nFirmware Version: %s\n"
4679 "Radio type: %x\nCountry: %x\nHardware Version: %x\n"
4680 "Software Version: %x\nSoftware Subversion: %x\n"
4681 "Boot block version: %x\n",
4682 le16_to_cpu(status_rid.mode),
4683 le16_to_cpu(status_rid.normalizedSignalStrength),
4684 le16_to_cpu(status_rid.signalQuality),
4685 le16_to_cpu(status_rid.SSIDlen),
4686 status_rid.SSID,
4687 status_rid.apName,
4688 le16_to_cpu(status_rid.channel),
4689 le16_to_cpu(status_rid.currentXmitRate) / 2,
4690 version,
4691 cap_rid.prodName,
4692 cap_rid.manName,
4693 cap_rid.prodVer,
4694 le16_to_cpu(cap_rid.radioType),
4695 le16_to_cpu(cap_rid.country),
4696 le16_to_cpu(cap_rid.hardVer),
4697 le16_to_cpu(cap_rid.softVer),
4698 le16_to_cpu(cap_rid.softSubVer),
4699 le16_to_cpu(cap_rid.bootBlockVer));
4700 data->readlen = strlen( data->rbuffer );
4701 return 0;
4702 }
4703
4704 static int proc_stats_rid_open(struct inode*, struct file*, u16);
proc_statsdelta_open(struct inode * inode,struct file * file)4705 static int proc_statsdelta_open( struct inode *inode,
4706 struct file *file ) {
4707 if (file->f_mode&FMODE_WRITE) {
4708 return proc_stats_rid_open(inode, file, RID_STATSDELTACLEAR);
4709 }
4710 return proc_stats_rid_open(inode, file, RID_STATSDELTA);
4711 }
4712
proc_stats_open(struct inode * inode,struct file * file)4713 static int proc_stats_open( struct inode *inode, struct file *file ) {
4714 return proc_stats_rid_open(inode, file, RID_STATS);
4715 }
4716
proc_stats_rid_open(struct inode * inode,struct file * file,u16 rid)4717 static int proc_stats_rid_open( struct inode *inode,
4718 struct file *file,
4719 u16 rid )
4720 {
4721 struct proc_data *data;
4722 struct net_device *dev = PDE_DATA(inode);
4723 struct airo_info *apriv = dev->ml_priv;
4724 StatsRid stats;
4725 int i, j;
4726 __le32 *vals = stats.vals;
4727 int len;
4728
4729 if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
4730 return -ENOMEM;
4731 data = file->private_data;
4732 if ((data->rbuffer = kmalloc( 4096, GFP_KERNEL )) == NULL) {
4733 kfree (file->private_data);
4734 return -ENOMEM;
4735 }
4736
4737 readStatsRid(apriv, &stats, rid, 1);
4738 len = le16_to_cpu(stats.len);
4739
4740 j = 0;
4741 for(i=0; statsLabels[i]!=(char *)-1 && i*4<len; i++) {
4742 if (!statsLabels[i]) continue;
4743 if (j+strlen(statsLabels[i])+16>4096) {
4744 airo_print_warn(apriv->dev->name,
4745 "Potentially disastrous buffer overflow averted!");
4746 break;
4747 }
4748 j+=sprintf(data->rbuffer+j, "%s: %u\n", statsLabels[i],
4749 le32_to_cpu(vals[i]));
4750 }
4751 if (i*4 >= len) {
4752 airo_print_warn(apriv->dev->name, "Got a short rid");
4753 }
4754 data->readlen = j;
4755 return 0;
4756 }
4757
get_dec_u16(char * buffer,int * start,int limit)4758 static int get_dec_u16( char *buffer, int *start, int limit ) {
4759 u16 value;
4760 int valid = 0;
4761 for (value = 0; *start < limit && buffer[*start] >= '0' &&
4762 buffer[*start] <= '9'; (*start)++) {
4763 valid = 1;
4764 value *= 10;
4765 value += buffer[*start] - '0';
4766 }
4767 if ( !valid ) return -1;
4768 return value;
4769 }
4770
4771 static int airo_config_commit(struct net_device *dev,
4772 struct iw_request_info *info, void *zwrq,
4773 char *extra);
4774
sniffing_mode(struct airo_info * ai)4775 static inline int sniffing_mode(struct airo_info *ai)
4776 {
4777 return (le16_to_cpu(ai->config.rmode) & le16_to_cpu(RXMODE_MASK)) >=
4778 le16_to_cpu(RXMODE_RFMON);
4779 }
4780
proc_config_on_close(struct inode * inode,struct file * file)4781 static void proc_config_on_close(struct inode *inode, struct file *file)
4782 {
4783 struct proc_data *data = file->private_data;
4784 struct net_device *dev = PDE_DATA(inode);
4785 struct airo_info *ai = dev->ml_priv;
4786 char *line;
4787
4788 if ( !data->writelen ) return;
4789
4790 readConfigRid(ai, 1);
4791 set_bit (FLAG_COMMIT, &ai->flags);
4792
4793 line = data->wbuffer;
4794 while( line[0] ) {
4795 /*** Mode processing */
4796 if ( !strncmp( line, "Mode: ", 6 ) ) {
4797 line += 6;
4798 if (sniffing_mode(ai))
4799 set_bit (FLAG_RESET, &ai->flags);
4800 ai->config.rmode &= ~RXMODE_FULL_MASK;
4801 clear_bit (FLAG_802_11, &ai->flags);
4802 ai->config.opmode &= ~MODE_CFG_MASK;
4803 ai->config.scanMode = SCANMODE_ACTIVE;
4804 if ( line[0] == 'a' ) {
4805 ai->config.opmode |= MODE_STA_IBSS;
4806 } else {
4807 ai->config.opmode |= MODE_STA_ESS;
4808 if ( line[0] == 'r' ) {
4809 ai->config.rmode |= RXMODE_RFMON | RXMODE_DISABLE_802_3_HEADER;
4810 ai->config.scanMode = SCANMODE_PASSIVE;
4811 set_bit (FLAG_802_11, &ai->flags);
4812 } else if ( line[0] == 'y' ) {
4813 ai->config.rmode |= RXMODE_RFMON_ANYBSS | RXMODE_DISABLE_802_3_HEADER;
4814 ai->config.scanMode = SCANMODE_PASSIVE;
4815 set_bit (FLAG_802_11, &ai->flags);
4816 } else if ( line[0] == 'l' )
4817 ai->config.rmode |= RXMODE_LANMON;
4818 }
4819 set_bit (FLAG_COMMIT, &ai->flags);
4820 }
4821
4822 /*** Radio status */
4823 else if (!strncmp(line,"Radio: ", 7)) {
4824 line += 7;
4825 if (!strncmp(line,"off",3)) {
4826 set_bit (FLAG_RADIO_OFF, &ai->flags);
4827 } else {
4828 clear_bit (FLAG_RADIO_OFF, &ai->flags);
4829 }
4830 }
4831 /*** NodeName processing */
4832 else if ( !strncmp( line, "NodeName: ", 10 ) ) {
4833 int j;
4834
4835 line += 10;
4836 memset( ai->config.nodeName, 0, 16 );
4837 /* Do the name, assume a space between the mode and node name */
4838 for( j = 0; j < 16 && line[j] != '\n'; j++ ) {
4839 ai->config.nodeName[j] = line[j];
4840 }
4841 set_bit (FLAG_COMMIT, &ai->flags);
4842 }
4843
4844 /*** PowerMode processing */
4845 else if ( !strncmp( line, "PowerMode: ", 11 ) ) {
4846 line += 11;
4847 if ( !strncmp( line, "PSPCAM", 6 ) ) {
4848 ai->config.powerSaveMode = POWERSAVE_PSPCAM;
4849 set_bit (FLAG_COMMIT, &ai->flags);
4850 } else if ( !strncmp( line, "PSP", 3 ) ) {
4851 ai->config.powerSaveMode = POWERSAVE_PSP;
4852 set_bit (FLAG_COMMIT, &ai->flags);
4853 } else {
4854 ai->config.powerSaveMode = POWERSAVE_CAM;
4855 set_bit (FLAG_COMMIT, &ai->flags);
4856 }
4857 } else if ( !strncmp( line, "DataRates: ", 11 ) ) {
4858 int v, i = 0, k = 0; /* i is index into line,
4859 k is index to rates */
4860
4861 line += 11;
4862 while((v = get_dec_u16(line, &i, 3))!=-1) {
4863 ai->config.rates[k++] = (u8)v;
4864 line += i + 1;
4865 i = 0;
4866 }
4867 set_bit (FLAG_COMMIT, &ai->flags);
4868 } else if ( !strncmp( line, "Channel: ", 9 ) ) {
4869 int v, i = 0;
4870 line += 9;
4871 v = get_dec_u16(line, &i, i+3);
4872 if ( v != -1 ) {
4873 ai->config.channelSet = cpu_to_le16(v);
4874 set_bit (FLAG_COMMIT, &ai->flags);
4875 }
4876 } else if ( !strncmp( line, "XmitPower: ", 11 ) ) {
4877 int v, i = 0;
4878 line += 11;
4879 v = get_dec_u16(line, &i, i+3);
4880 if ( v != -1 ) {
4881 ai->config.txPower = cpu_to_le16(v);
4882 set_bit (FLAG_COMMIT, &ai->flags);
4883 }
4884 } else if ( !strncmp( line, "WEP: ", 5 ) ) {
4885 line += 5;
4886 switch( line[0] ) {
4887 case 's':
4888 set_auth_type(ai, AUTH_SHAREDKEY);
4889 break;
4890 case 'e':
4891 set_auth_type(ai, AUTH_ENCRYPT);
4892 break;
4893 default:
4894 set_auth_type(ai, AUTH_OPEN);
4895 break;
4896 }
4897 set_bit (FLAG_COMMIT, &ai->flags);
4898 } else if ( !strncmp( line, "LongRetryLimit: ", 16 ) ) {
4899 int v, i = 0;
4900
4901 line += 16;
4902 v = get_dec_u16(line, &i, 3);
4903 v = (v<0) ? 0 : ((v>255) ? 255 : v);
4904 ai->config.longRetryLimit = cpu_to_le16(v);
4905 set_bit (FLAG_COMMIT, &ai->flags);
4906 } else if ( !strncmp( line, "ShortRetryLimit: ", 17 ) ) {
4907 int v, i = 0;
4908
4909 line += 17;
4910 v = get_dec_u16(line, &i, 3);
4911 v = (v<0) ? 0 : ((v>255) ? 255 : v);
4912 ai->config.shortRetryLimit = cpu_to_le16(v);
4913 set_bit (FLAG_COMMIT, &ai->flags);
4914 } else if ( !strncmp( line, "RTSThreshold: ", 14 ) ) {
4915 int v, i = 0;
4916
4917 line += 14;
4918 v = get_dec_u16(line, &i, 4);
4919 v = (v<0) ? 0 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v);
4920 ai->config.rtsThres = cpu_to_le16(v);
4921 set_bit (FLAG_COMMIT, &ai->flags);
4922 } else if ( !strncmp( line, "TXMSDULifetime: ", 16 ) ) {
4923 int v, i = 0;
4924
4925 line += 16;
4926 v = get_dec_u16(line, &i, 5);
4927 v = (v<0) ? 0 : v;
4928 ai->config.txLifetime = cpu_to_le16(v);
4929 set_bit (FLAG_COMMIT, &ai->flags);
4930 } else if ( !strncmp( line, "RXMSDULifetime: ", 16 ) ) {
4931 int v, i = 0;
4932
4933 line += 16;
4934 v = get_dec_u16(line, &i, 5);
4935 v = (v<0) ? 0 : v;
4936 ai->config.rxLifetime = cpu_to_le16(v);
4937 set_bit (FLAG_COMMIT, &ai->flags);
4938 } else if ( !strncmp( line, "TXDiversity: ", 13 ) ) {
4939 ai->config.txDiversity =
4940 (line[13]=='l') ? 1 :
4941 ((line[13]=='r')? 2: 3);
4942 set_bit (FLAG_COMMIT, &ai->flags);
4943 } else if ( !strncmp( line, "RXDiversity: ", 13 ) ) {
4944 ai->config.rxDiversity =
4945 (line[13]=='l') ? 1 :
4946 ((line[13]=='r')? 2: 3);
4947 set_bit (FLAG_COMMIT, &ai->flags);
4948 } else if ( !strncmp( line, "FragThreshold: ", 15 ) ) {
4949 int v, i = 0;
4950
4951 line += 15;
4952 v = get_dec_u16(line, &i, 4);
4953 v = (v<256) ? 256 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v);
4954 v = v & 0xfffe; /* Make sure its even */
4955 ai->config.fragThresh = cpu_to_le16(v);
4956 set_bit (FLAG_COMMIT, &ai->flags);
4957 } else if (!strncmp(line, "Modulation: ", 12)) {
4958 line += 12;
4959 switch(*line) {
4960 case 'd': ai->config.modulation=MOD_DEFAULT; set_bit(FLAG_COMMIT, &ai->flags); break;
4961 case 'c': ai->config.modulation=MOD_CCK; set_bit(FLAG_COMMIT, &ai->flags); break;
4962 case 'm': ai->config.modulation=MOD_MOK; set_bit(FLAG_COMMIT, &ai->flags); break;
4963 default: airo_print_warn(ai->dev->name, "Unknown modulation");
4964 }
4965 } else if (!strncmp(line, "Preamble: ", 10)) {
4966 line += 10;
4967 switch(*line) {
4968 case 'a': ai->config.preamble=PREAMBLE_AUTO; set_bit(FLAG_COMMIT, &ai->flags); break;
4969 case 'l': ai->config.preamble=PREAMBLE_LONG; set_bit(FLAG_COMMIT, &ai->flags); break;
4970 case 's': ai->config.preamble=PREAMBLE_SHORT; set_bit(FLAG_COMMIT, &ai->flags); break;
4971 default: airo_print_warn(ai->dev->name, "Unknown preamble");
4972 }
4973 } else {
4974 airo_print_warn(ai->dev->name, "Couldn't figure out %s", line);
4975 }
4976 while( line[0] && line[0] != '\n' ) line++;
4977 if ( line[0] ) line++;
4978 }
4979 airo_config_commit(dev, NULL, NULL, NULL);
4980 }
4981
get_rmode(__le16 mode)4982 static const char *get_rmode(__le16 mode)
4983 {
4984 switch(mode & RXMODE_MASK) {
4985 case RXMODE_RFMON: return "rfmon";
4986 case RXMODE_RFMON_ANYBSS: return "yna (any) bss rfmon";
4987 case RXMODE_LANMON: return "lanmon";
4988 }
4989 return "ESS";
4990 }
4991
proc_config_open(struct inode * inode,struct file * file)4992 static int proc_config_open(struct inode *inode, struct file *file)
4993 {
4994 struct proc_data *data;
4995 struct net_device *dev = PDE_DATA(inode);
4996 struct airo_info *ai = dev->ml_priv;
4997 int i;
4998 __le16 mode;
4999
5000 if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
5001 return -ENOMEM;
5002 data = file->private_data;
5003 if ((data->rbuffer = kmalloc( 2048, GFP_KERNEL )) == NULL) {
5004 kfree (file->private_data);
5005 return -ENOMEM;
5006 }
5007 if ((data->wbuffer = kzalloc( 2048, GFP_KERNEL )) == NULL) {
5008 kfree (data->rbuffer);
5009 kfree (file->private_data);
5010 return -ENOMEM;
5011 }
5012 data->maxwritelen = 2048;
5013 data->on_close = proc_config_on_close;
5014
5015 readConfigRid(ai, 1);
5016
5017 mode = ai->config.opmode & MODE_CFG_MASK;
5018 i = sprintf( data->rbuffer,
5019 "Mode: %s\n"
5020 "Radio: %s\n"
5021 "NodeName: %-16s\n"
5022 "PowerMode: %s\n"
5023 "DataRates: %d %d %d %d %d %d %d %d\n"
5024 "Channel: %d\n"
5025 "XmitPower: %d\n",
5026 mode == MODE_STA_IBSS ? "adhoc" :
5027 mode == MODE_STA_ESS ? get_rmode(ai->config.rmode):
5028 mode == MODE_AP ? "AP" :
5029 mode == MODE_AP_RPTR ? "AP RPTR" : "Error",
5030 test_bit(FLAG_RADIO_OFF, &ai->flags) ? "off" : "on",
5031 ai->config.nodeName,
5032 ai->config.powerSaveMode == POWERSAVE_CAM ? "CAM" :
5033 ai->config.powerSaveMode == POWERSAVE_PSP ? "PSP" :
5034 ai->config.powerSaveMode == POWERSAVE_PSPCAM ? "PSPCAM" :
5035 "Error",
5036 (int)ai->config.rates[0],
5037 (int)ai->config.rates[1],
5038 (int)ai->config.rates[2],
5039 (int)ai->config.rates[3],
5040 (int)ai->config.rates[4],
5041 (int)ai->config.rates[5],
5042 (int)ai->config.rates[6],
5043 (int)ai->config.rates[7],
5044 le16_to_cpu(ai->config.channelSet),
5045 le16_to_cpu(ai->config.txPower)
5046 );
5047 sprintf( data->rbuffer + i,
5048 "LongRetryLimit: %d\n"
5049 "ShortRetryLimit: %d\n"
5050 "RTSThreshold: %d\n"
5051 "TXMSDULifetime: %d\n"
5052 "RXMSDULifetime: %d\n"
5053 "TXDiversity: %s\n"
5054 "RXDiversity: %s\n"
5055 "FragThreshold: %d\n"
5056 "WEP: %s\n"
5057 "Modulation: %s\n"
5058 "Preamble: %s\n",
5059 le16_to_cpu(ai->config.longRetryLimit),
5060 le16_to_cpu(ai->config.shortRetryLimit),
5061 le16_to_cpu(ai->config.rtsThres),
5062 le16_to_cpu(ai->config.txLifetime),
5063 le16_to_cpu(ai->config.rxLifetime),
5064 ai->config.txDiversity == 1 ? "left" :
5065 ai->config.txDiversity == 2 ? "right" : "both",
5066 ai->config.rxDiversity == 1 ? "left" :
5067 ai->config.rxDiversity == 2 ? "right" : "both",
5068 le16_to_cpu(ai->config.fragThresh),
5069 ai->config.authType == AUTH_ENCRYPT ? "encrypt" :
5070 ai->config.authType == AUTH_SHAREDKEY ? "shared" : "open",
5071 ai->config.modulation == MOD_DEFAULT ? "default" :
5072 ai->config.modulation == MOD_CCK ? "cck" :
5073 ai->config.modulation == MOD_MOK ? "mok" : "error",
5074 ai->config.preamble == PREAMBLE_AUTO ? "auto" :
5075 ai->config.preamble == PREAMBLE_LONG ? "long" :
5076 ai->config.preamble == PREAMBLE_SHORT ? "short" : "error"
5077 );
5078 data->readlen = strlen( data->rbuffer );
5079 return 0;
5080 }
5081
proc_SSID_on_close(struct inode * inode,struct file * file)5082 static void proc_SSID_on_close(struct inode *inode, struct file *file)
5083 {
5084 struct proc_data *data = file->private_data;
5085 struct net_device *dev = PDE_DATA(inode);
5086 struct airo_info *ai = dev->ml_priv;
5087 SsidRid SSID_rid;
5088 int i;
5089 char *p = data->wbuffer;
5090 char *end = p + data->writelen;
5091
5092 if (!data->writelen)
5093 return;
5094
5095 *end = '\n'; /* sentinel; we have space for it */
5096
5097 memset(&SSID_rid, 0, sizeof(SSID_rid));
5098
5099 for (i = 0; i < 3 && p < end; i++) {
5100 int j = 0;
5101 /* copy up to 32 characters from this line */
5102 while (*p != '\n' && j < 32)
5103 SSID_rid.ssids[i].ssid[j++] = *p++;
5104 if (j == 0)
5105 break;
5106 SSID_rid.ssids[i].len = cpu_to_le16(j);
5107 /* skip to the beginning of the next line */
5108 while (*p++ != '\n')
5109 ;
5110 }
5111 if (i)
5112 SSID_rid.len = cpu_to_le16(sizeof(SSID_rid));
5113 disable_MAC(ai, 1);
5114 writeSsidRid(ai, &SSID_rid, 1);
5115 enable_MAC(ai, 1);
5116 }
5117
proc_APList_on_close(struct inode * inode,struct file * file)5118 static void proc_APList_on_close( struct inode *inode, struct file *file ) {
5119 struct proc_data *data = file->private_data;
5120 struct net_device *dev = PDE_DATA(inode);
5121 struct airo_info *ai = dev->ml_priv;
5122 APListRid *APList_rid = &ai->APList;
5123 int i;
5124
5125 if ( !data->writelen ) return;
5126
5127 memset(APList_rid, 0, sizeof(*APList_rid));
5128 APList_rid->len = cpu_to_le16(sizeof(*APList_rid));
5129
5130 for (i = 0; i < 4 && data->writelen >= (i + 1) * 6 * 3; i++)
5131 mac_pton(data->wbuffer + i * 6 * 3, APList_rid->ap[i]);
5132
5133 disable_MAC(ai, 1);
5134 writeAPListRid(ai, APList_rid, 1);
5135 enable_MAC(ai, 1);
5136 }
5137
5138 /* This function wraps PC4500_writerid with a MAC disable */
do_writerid(struct airo_info * ai,u16 rid,const void * rid_data,int len,int dummy)5139 static int do_writerid( struct airo_info *ai, u16 rid, const void *rid_data,
5140 int len, int dummy ) {
5141 int rc;
5142
5143 disable_MAC(ai, 1);
5144 rc = PC4500_writerid(ai, rid, rid_data, len, 1);
5145 enable_MAC(ai, 1);
5146 return rc;
5147 }
5148
5149 /* Returns the WEP key at the specified index, or -1 if that key does
5150 * not exist. The buffer is assumed to be at least 16 bytes in length.
5151 */
get_wep_key(struct airo_info * ai,u16 index,char * buf,u16 buflen)5152 static int get_wep_key(struct airo_info *ai, u16 index, char *buf, u16 buflen)
5153 {
5154 WepKeyRid wkr;
5155 int rc;
5156 __le16 lastindex;
5157
5158 rc = readWepKeyRid(ai, &wkr, 1, 1);
5159 if (rc != SUCCESS)
5160 return -1;
5161 do {
5162 lastindex = wkr.kindex;
5163 if (le16_to_cpu(wkr.kindex) == index) {
5164 int klen = min_t(int, buflen, le16_to_cpu(wkr.klen));
5165 memcpy(buf, wkr.key, klen);
5166 return klen;
5167 }
5168 rc = readWepKeyRid(ai, &wkr, 0, 1);
5169 if (rc != SUCCESS)
5170 return -1;
5171 } while (lastindex != wkr.kindex);
5172 return -1;
5173 }
5174
get_wep_tx_idx(struct airo_info * ai)5175 static int get_wep_tx_idx(struct airo_info *ai)
5176 {
5177 WepKeyRid wkr;
5178 int rc;
5179 __le16 lastindex;
5180
5181 rc = readWepKeyRid(ai, &wkr, 1, 1);
5182 if (rc != SUCCESS)
5183 return -1;
5184 do {
5185 lastindex = wkr.kindex;
5186 if (wkr.kindex == cpu_to_le16(0xffff))
5187 return wkr.mac[0];
5188 rc = readWepKeyRid(ai, &wkr, 0, 1);
5189 if (rc != SUCCESS)
5190 return -1;
5191 } while (lastindex != wkr.kindex);
5192 return -1;
5193 }
5194
set_wep_key(struct airo_info * ai,u16 index,const char * key,u16 keylen,int perm,int lock)5195 static int set_wep_key(struct airo_info *ai, u16 index, const char *key,
5196 u16 keylen, int perm, int lock)
5197 {
5198 static const unsigned char macaddr[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 };
5199 WepKeyRid wkr;
5200 int rc;
5201
5202 if (WARN_ON(keylen == 0))
5203 return -1;
5204
5205 memset(&wkr, 0, sizeof(wkr));
5206 wkr.len = cpu_to_le16(sizeof(wkr));
5207 wkr.kindex = cpu_to_le16(index);
5208 wkr.klen = cpu_to_le16(keylen);
5209 memcpy(wkr.key, key, keylen);
5210 memcpy(wkr.mac, macaddr, ETH_ALEN);
5211
5212 if (perm) disable_MAC(ai, lock);
5213 rc = writeWepKeyRid(ai, &wkr, perm, lock);
5214 if (perm) enable_MAC(ai, lock);
5215 return rc;
5216 }
5217
set_wep_tx_idx(struct airo_info * ai,u16 index,int perm,int lock)5218 static int set_wep_tx_idx(struct airo_info *ai, u16 index, int perm, int lock)
5219 {
5220 WepKeyRid wkr;
5221 int rc;
5222
5223 memset(&wkr, 0, sizeof(wkr));
5224 wkr.len = cpu_to_le16(sizeof(wkr));
5225 wkr.kindex = cpu_to_le16(0xffff);
5226 wkr.mac[0] = (char)index;
5227
5228 if (perm) {
5229 ai->defindex = (char)index;
5230 disable_MAC(ai, lock);
5231 }
5232
5233 rc = writeWepKeyRid(ai, &wkr, perm, lock);
5234
5235 if (perm)
5236 enable_MAC(ai, lock);
5237 return rc;
5238 }
5239
proc_wepkey_on_close(struct inode * inode,struct file * file)5240 static void proc_wepkey_on_close( struct inode *inode, struct file *file ) {
5241 struct proc_data *data;
5242 struct net_device *dev = PDE_DATA(inode);
5243 struct airo_info *ai = dev->ml_priv;
5244 int i, rc;
5245 char key[16];
5246 u16 index = 0;
5247 int j = 0;
5248
5249 memset(key, 0, sizeof(key));
5250
5251 data = file->private_data;
5252 if ( !data->writelen ) return;
5253
5254 if (data->wbuffer[0] >= '0' && data->wbuffer[0] <= '3' &&
5255 (data->wbuffer[1] == ' ' || data->wbuffer[1] == '\n')) {
5256 index = data->wbuffer[0] - '0';
5257 if (data->wbuffer[1] == '\n') {
5258 rc = set_wep_tx_idx(ai, index, 1, 1);
5259 if (rc < 0) {
5260 airo_print_err(ai->dev->name, "failed to set "
5261 "WEP transmit index to %d: %d.",
5262 index, rc);
5263 }
5264 return;
5265 }
5266 j = 2;
5267 } else {
5268 airo_print_err(ai->dev->name, "WepKey passed invalid key index");
5269 return;
5270 }
5271
5272 for( i = 0; i < 16*3 && data->wbuffer[i+j]; i++ ) {
5273 switch(i%3) {
5274 case 0:
5275 key[i/3] = hex_to_bin(data->wbuffer[i+j])<<4;
5276 break;
5277 case 1:
5278 key[i/3] |= hex_to_bin(data->wbuffer[i+j]);
5279 break;
5280 }
5281 }
5282
5283 rc = set_wep_key(ai, index, key, i/3, 1, 1);
5284 if (rc < 0) {
5285 airo_print_err(ai->dev->name, "failed to set WEP key at index "
5286 "%d: %d.", index, rc);
5287 }
5288 }
5289
proc_wepkey_open(struct inode * inode,struct file * file)5290 static int proc_wepkey_open( struct inode *inode, struct file *file )
5291 {
5292 struct proc_data *data;
5293 struct net_device *dev = PDE_DATA(inode);
5294 struct airo_info *ai = dev->ml_priv;
5295 char *ptr;
5296 WepKeyRid wkr;
5297 __le16 lastindex;
5298 int j=0;
5299 int rc;
5300
5301 if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
5302 return -ENOMEM;
5303 memset(&wkr, 0, sizeof(wkr));
5304 data = file->private_data;
5305 if ((data->rbuffer = kzalloc( 180, GFP_KERNEL )) == NULL) {
5306 kfree (file->private_data);
5307 return -ENOMEM;
5308 }
5309 data->writelen = 0;
5310 data->maxwritelen = 80;
5311 if ((data->wbuffer = kzalloc( 80, GFP_KERNEL )) == NULL) {
5312 kfree (data->rbuffer);
5313 kfree (file->private_data);
5314 return -ENOMEM;
5315 }
5316 data->on_close = proc_wepkey_on_close;
5317
5318 ptr = data->rbuffer;
5319 strcpy(ptr, "No wep keys\n");
5320 rc = readWepKeyRid(ai, &wkr, 1, 1);
5321 if (rc == SUCCESS) do {
5322 lastindex = wkr.kindex;
5323 if (wkr.kindex == cpu_to_le16(0xffff)) {
5324 j += sprintf(ptr+j, "Tx key = %d\n",
5325 (int)wkr.mac[0]);
5326 } else {
5327 j += sprintf(ptr+j, "Key %d set with length = %d\n",
5328 le16_to_cpu(wkr.kindex),
5329 le16_to_cpu(wkr.klen));
5330 }
5331 readWepKeyRid(ai, &wkr, 0, 1);
5332 } while((lastindex != wkr.kindex) && (j < 180-30));
5333
5334 data->readlen = strlen( data->rbuffer );
5335 return 0;
5336 }
5337
proc_SSID_open(struct inode * inode,struct file * file)5338 static int proc_SSID_open(struct inode *inode, struct file *file)
5339 {
5340 struct proc_data *data;
5341 struct net_device *dev = PDE_DATA(inode);
5342 struct airo_info *ai = dev->ml_priv;
5343 int i;
5344 char *ptr;
5345 SsidRid SSID_rid;
5346
5347 if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
5348 return -ENOMEM;
5349 data = file->private_data;
5350 if ((data->rbuffer = kmalloc( 104, GFP_KERNEL )) == NULL) {
5351 kfree (file->private_data);
5352 return -ENOMEM;
5353 }
5354 data->writelen = 0;
5355 data->maxwritelen = 33*3;
5356 /* allocate maxwritelen + 1; we'll want a sentinel */
5357 if ((data->wbuffer = kzalloc(33*3 + 1, GFP_KERNEL)) == NULL) {
5358 kfree (data->rbuffer);
5359 kfree (file->private_data);
5360 return -ENOMEM;
5361 }
5362 data->on_close = proc_SSID_on_close;
5363
5364 readSsidRid(ai, &SSID_rid);
5365 ptr = data->rbuffer;
5366 for (i = 0; i < 3; i++) {
5367 int j;
5368 size_t len = le16_to_cpu(SSID_rid.ssids[i].len);
5369 if (!len)
5370 break;
5371 if (len > 32)
5372 len = 32;
5373 for (j = 0; j < len && SSID_rid.ssids[i].ssid[j]; j++)
5374 *ptr++ = SSID_rid.ssids[i].ssid[j];
5375 *ptr++ = '\n';
5376 }
5377 *ptr = '\0';
5378 data->readlen = strlen( data->rbuffer );
5379 return 0;
5380 }
5381
proc_APList_open(struct inode * inode,struct file * file)5382 static int proc_APList_open( struct inode *inode, struct file *file ) {
5383 struct proc_data *data;
5384 struct net_device *dev = PDE_DATA(inode);
5385 struct airo_info *ai = dev->ml_priv;
5386 int i;
5387 char *ptr;
5388 APListRid *APList_rid = &ai->APList;
5389
5390 if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
5391 return -ENOMEM;
5392 data = file->private_data;
5393 if ((data->rbuffer = kmalloc( 104, GFP_KERNEL )) == NULL) {
5394 kfree (file->private_data);
5395 return -ENOMEM;
5396 }
5397 data->writelen = 0;
5398 data->maxwritelen = 4*6*3;
5399 if ((data->wbuffer = kzalloc( data->maxwritelen, GFP_KERNEL )) == NULL) {
5400 kfree (data->rbuffer);
5401 kfree (file->private_data);
5402 return -ENOMEM;
5403 }
5404 data->on_close = proc_APList_on_close;
5405
5406 ptr = data->rbuffer;
5407 for( i = 0; i < 4; i++ ) {
5408 // We end when we find a zero MAC
5409 if ( !*(int*)APList_rid->ap[i] &&
5410 !*(int*)&APList_rid->ap[i][2]) break;
5411 ptr += sprintf(ptr, "%pM\n", APList_rid->ap[i]);
5412 }
5413 if (i==0) ptr += sprintf(ptr, "Not using specific APs\n");
5414
5415 *ptr = '\0';
5416 data->readlen = strlen( data->rbuffer );
5417 return 0;
5418 }
5419
proc_BSSList_open(struct inode * inode,struct file * file)5420 static int proc_BSSList_open( struct inode *inode, struct file *file ) {
5421 struct proc_data *data;
5422 struct net_device *dev = PDE_DATA(inode);
5423 struct airo_info *ai = dev->ml_priv;
5424 char *ptr;
5425 BSSListRid BSSList_rid;
5426 int rc;
5427 /* If doLoseSync is not 1, we won't do a Lose Sync */
5428 int doLoseSync = -1;
5429
5430 if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
5431 return -ENOMEM;
5432 data = file->private_data;
5433 if ((data->rbuffer = kmalloc( 1024, GFP_KERNEL )) == NULL) {
5434 kfree (file->private_data);
5435 return -ENOMEM;
5436 }
5437 data->writelen = 0;
5438 data->maxwritelen = 0;
5439 data->wbuffer = NULL;
5440 data->on_close = NULL;
5441
5442 if (file->f_mode & FMODE_WRITE) {
5443 if (!(file->f_mode & FMODE_READ)) {
5444 Cmd cmd;
5445 Resp rsp;
5446
5447 if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN;
5448 memset(&cmd, 0, sizeof(cmd));
5449 cmd.cmd=CMD_LISTBSS;
5450 if (down_interruptible(&ai->sem))
5451 return -ERESTARTSYS;
5452 issuecommand(ai, &cmd, &rsp);
5453 up(&ai->sem);
5454 data->readlen = 0;
5455 return 0;
5456 }
5457 doLoseSync = 1;
5458 }
5459 ptr = data->rbuffer;
5460 /* There is a race condition here if there are concurrent opens.
5461 Since it is a rare condition, we'll just live with it, otherwise
5462 we have to add a spin lock... */
5463 rc = readBSSListRid(ai, doLoseSync, &BSSList_rid);
5464 while(rc == 0 && BSSList_rid.index != cpu_to_le16(0xffff)) {
5465 ptr += sprintf(ptr, "%pM %*s rssi = %d",
5466 BSSList_rid.bssid,
5467 (int)BSSList_rid.ssidLen,
5468 BSSList_rid.ssid,
5469 le16_to_cpu(BSSList_rid.dBm));
5470 ptr += sprintf(ptr, " channel = %d %s %s %s %s\n",
5471 le16_to_cpu(BSSList_rid.dsChannel),
5472 BSSList_rid.cap & CAP_ESS ? "ESS" : "",
5473 BSSList_rid.cap & CAP_IBSS ? "adhoc" : "",
5474 BSSList_rid.cap & CAP_PRIVACY ? "wep" : "",
5475 BSSList_rid.cap & CAP_SHORTHDR ? "shorthdr" : "");
5476 rc = readBSSListRid(ai, 0, &BSSList_rid);
5477 }
5478 *ptr = '\0';
5479 data->readlen = strlen( data->rbuffer );
5480 return 0;
5481 }
5482
proc_close(struct inode * inode,struct file * file)5483 static int proc_close( struct inode *inode, struct file *file )
5484 {
5485 struct proc_data *data = file->private_data;
5486
5487 if (data->on_close != NULL)
5488 data->on_close(inode, file);
5489 kfree(data->rbuffer);
5490 kfree(data->wbuffer);
5491 kfree(data);
5492 return 0;
5493 }
5494
5495 /* Since the card doesn't automatically switch to the right WEP mode,
5496 we will make it do it. If the card isn't associated, every secs we
5497 will switch WEP modes to see if that will help. If the card is
5498 associated we will check every minute to see if anything has
5499 changed. */
timer_func(struct net_device * dev)5500 static void timer_func( struct net_device *dev ) {
5501 struct airo_info *apriv = dev->ml_priv;
5502
5503 /* We don't have a link so try changing the authtype */
5504 readConfigRid(apriv, 0);
5505 disable_MAC(apriv, 0);
5506 switch(apriv->config.authType) {
5507 case AUTH_ENCRYPT:
5508 /* So drop to OPEN */
5509 apriv->config.authType = AUTH_OPEN;
5510 break;
5511 case AUTH_SHAREDKEY:
5512 if (apriv->keyindex < auto_wep) {
5513 set_wep_tx_idx(apriv, apriv->keyindex, 0, 0);
5514 apriv->config.authType = AUTH_SHAREDKEY;
5515 apriv->keyindex++;
5516 } else {
5517 /* Drop to ENCRYPT */
5518 apriv->keyindex = 0;
5519 set_wep_tx_idx(apriv, apriv->defindex, 0, 0);
5520 apriv->config.authType = AUTH_ENCRYPT;
5521 }
5522 break;
5523 default: /* We'll escalate to SHAREDKEY */
5524 apriv->config.authType = AUTH_SHAREDKEY;
5525 }
5526 set_bit (FLAG_COMMIT, &apriv->flags);
5527 writeConfigRid(apriv, 0);
5528 enable_MAC(apriv, 0);
5529 up(&apriv->sem);
5530
5531 /* Schedule check to see if the change worked */
5532 clear_bit(JOB_AUTOWEP, &apriv->jobs);
5533 apriv->expires = RUN_AT(HZ*3);
5534 }
5535
5536 #ifdef CONFIG_PCI
airo_pci_probe(struct pci_dev * pdev,const struct pci_device_id * pent)5537 static int airo_pci_probe(struct pci_dev *pdev,
5538 const struct pci_device_id *pent)
5539 {
5540 struct net_device *dev;
5541
5542 if (pci_enable_device(pdev))
5543 return -ENODEV;
5544 pci_set_master(pdev);
5545
5546 if (pdev->device == 0x5000 || pdev->device == 0xa504)
5547 dev = _init_airo_card(pdev->irq, pdev->resource[0].start, 0, pdev, &pdev->dev);
5548 else
5549 dev = _init_airo_card(pdev->irq, pdev->resource[2].start, 0, pdev, &pdev->dev);
5550 if (!dev) {
5551 pci_disable_device(pdev);
5552 return -ENODEV;
5553 }
5554
5555 pci_set_drvdata(pdev, dev);
5556 return 0;
5557 }
5558
airo_pci_remove(struct pci_dev * pdev)5559 static void airo_pci_remove(struct pci_dev *pdev)
5560 {
5561 struct net_device *dev = pci_get_drvdata(pdev);
5562
5563 airo_print_info(dev->name, "Unregistering...");
5564 stop_airo_card(dev, 1);
5565 pci_disable_device(pdev);
5566 }
5567
airo_pci_suspend(struct pci_dev * pdev,pm_message_t state)5568 static int airo_pci_suspend(struct pci_dev *pdev, pm_message_t state)
5569 {
5570 struct net_device *dev = pci_get_drvdata(pdev);
5571 struct airo_info *ai = dev->ml_priv;
5572 Cmd cmd;
5573 Resp rsp;
5574
5575 if (!ai->SSID)
5576 ai->SSID = kmalloc(sizeof(SsidRid), GFP_KERNEL);
5577 if (!ai->SSID)
5578 return -ENOMEM;
5579 readSsidRid(ai, ai->SSID);
5580 memset(&cmd, 0, sizeof(cmd));
5581 /* the lock will be released at the end of the resume callback */
5582 if (down_interruptible(&ai->sem))
5583 return -EAGAIN;
5584 disable_MAC(ai, 0);
5585 netif_device_detach(dev);
5586 ai->power = state;
5587 cmd.cmd = HOSTSLEEP;
5588 issuecommand(ai, &cmd, &rsp);
5589
5590 pci_enable_wake(pdev, pci_choose_state(pdev, state), 1);
5591 pci_save_state(pdev);
5592 pci_set_power_state(pdev, pci_choose_state(pdev, state));
5593 return 0;
5594 }
5595
airo_pci_resume(struct pci_dev * pdev)5596 static int airo_pci_resume(struct pci_dev *pdev)
5597 {
5598 struct net_device *dev = pci_get_drvdata(pdev);
5599 struct airo_info *ai = dev->ml_priv;
5600 pci_power_t prev_state = pdev->current_state;
5601
5602 pci_set_power_state(pdev, PCI_D0);
5603 pci_restore_state(pdev);
5604 pci_enable_wake(pdev, PCI_D0, 0);
5605
5606 if (prev_state != PCI_D1) {
5607 reset_card(dev, 0);
5608 mpi_init_descriptors(ai);
5609 setup_card(ai, dev->dev_addr, 0);
5610 clear_bit(FLAG_RADIO_OFF, &ai->flags);
5611 clear_bit(FLAG_PENDING_XMIT, &ai->flags);
5612 } else {
5613 OUT4500(ai, EVACK, EV_AWAKEN);
5614 OUT4500(ai, EVACK, EV_AWAKEN);
5615 msleep(100);
5616 }
5617
5618 set_bit(FLAG_COMMIT, &ai->flags);
5619 disable_MAC(ai, 0);
5620 msleep(200);
5621 if (ai->SSID) {
5622 writeSsidRid(ai, ai->SSID, 0);
5623 kfree(ai->SSID);
5624 ai->SSID = NULL;
5625 }
5626 writeAPListRid(ai, &ai->APList, 0);
5627 writeConfigRid(ai, 0);
5628 enable_MAC(ai, 0);
5629 ai->power = PMSG_ON;
5630 netif_device_attach(dev);
5631 netif_wake_queue(dev);
5632 enable_interrupts(ai);
5633 up(&ai->sem);
5634 return 0;
5635 }
5636 #endif
5637
airo_init_module(void)5638 static int __init airo_init_module( void )
5639 {
5640 int i;
5641
5642 proc_kuid = make_kuid(&init_user_ns, proc_uid);
5643 proc_kgid = make_kgid(&init_user_ns, proc_gid);
5644 if (!uid_valid(proc_kuid) || !gid_valid(proc_kgid))
5645 return -EINVAL;
5646
5647 airo_entry = proc_mkdir_mode("driver/aironet", airo_perm, NULL);
5648
5649 if (airo_entry)
5650 proc_set_user(airo_entry, proc_kuid, proc_kgid);
5651
5652 for (i = 0; i < 4 && io[i] && irq[i]; i++) {
5653 airo_print_info("", "Trying to configure ISA adapter at irq=%d "
5654 "io=0x%x", irq[i], io[i] );
5655 if (init_airo_card( irq[i], io[i], 0, NULL ))
5656 /* do nothing */ ;
5657 }
5658
5659 #ifdef CONFIG_PCI
5660 airo_print_info("", "Probing for PCI adapters");
5661 i = pci_register_driver(&airo_driver);
5662 airo_print_info("", "Finished probing for PCI adapters");
5663
5664 if (i) {
5665 remove_proc_entry("driver/aironet", NULL);
5666 return i;
5667 }
5668 #endif
5669
5670 /* Always exit with success, as we are a library module
5671 * as well as a driver module
5672 */
5673 return 0;
5674 }
5675
airo_cleanup_module(void)5676 static void __exit airo_cleanup_module( void )
5677 {
5678 struct airo_info *ai;
5679 while(!list_empty(&airo_devices)) {
5680 ai = list_entry(airo_devices.next, struct airo_info, dev_list);
5681 airo_print_info(ai->dev->name, "Unregistering...");
5682 stop_airo_card(ai->dev, 1);
5683 }
5684 #ifdef CONFIG_PCI
5685 pci_unregister_driver(&airo_driver);
5686 #endif
5687 remove_proc_entry("driver/aironet", NULL);
5688 }
5689
5690 /*
5691 * Initial Wireless Extension code for Aironet driver by :
5692 * Jean Tourrilhes <jt@hpl.hp.com> - HPL - 17 November 00
5693 * Conversion to new driver API by :
5694 * Jean Tourrilhes <jt@hpl.hp.com> - HPL - 26 March 02
5695 * Javier also did a good amount of work here, adding some new extensions
5696 * and fixing my code. Let's just say that without him this code just
5697 * would not work at all... - Jean II
5698 */
5699
airo_rssi_to_dbm(tdsRssiEntry * rssi_rid,u8 rssi)5700 static u8 airo_rssi_to_dbm (tdsRssiEntry *rssi_rid, u8 rssi)
5701 {
5702 if (!rssi_rid)
5703 return 0;
5704
5705 return (0x100 - rssi_rid[rssi].rssidBm);
5706 }
5707
airo_dbm_to_pct(tdsRssiEntry * rssi_rid,u8 dbm)5708 static u8 airo_dbm_to_pct (tdsRssiEntry *rssi_rid, u8 dbm)
5709 {
5710 int i;
5711
5712 if (!rssi_rid)
5713 return 0;
5714
5715 for (i = 0; i < 256; i++)
5716 if (rssi_rid[i].rssidBm == dbm)
5717 return rssi_rid[i].rssipct;
5718
5719 return 0;
5720 }
5721
5722
airo_get_quality(StatusRid * status_rid,CapabilityRid * cap_rid)5723 static int airo_get_quality (StatusRid *status_rid, CapabilityRid *cap_rid)
5724 {
5725 int quality = 0;
5726 u16 sq;
5727
5728 if ((status_rid->mode & cpu_to_le16(0x3f)) != cpu_to_le16(0x3f))
5729 return 0;
5730
5731 if (!(cap_rid->hardCap & cpu_to_le16(8)))
5732 return 0;
5733
5734 sq = le16_to_cpu(status_rid->signalQuality);
5735 if (memcmp(cap_rid->prodName, "350", 3))
5736 if (sq > 0x20)
5737 quality = 0;
5738 else
5739 quality = 0x20 - sq;
5740 else
5741 if (sq > 0xb0)
5742 quality = 0;
5743 else if (sq < 0x10)
5744 quality = 0xa0;
5745 else
5746 quality = 0xb0 - sq;
5747 return quality;
5748 }
5749
5750 #define airo_get_max_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x20 : 0xa0)
5751 #define airo_get_avg_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x10 : 0x50);
5752
5753 /*------------------------------------------------------------------*/
5754 /*
5755 * Wireless Handler : get protocol name
5756 */
airo_get_name(struct net_device * dev,struct iw_request_info * info,char * cwrq,char * extra)5757 static int airo_get_name(struct net_device *dev,
5758 struct iw_request_info *info,
5759 char *cwrq,
5760 char *extra)
5761 {
5762 strcpy(cwrq, "IEEE 802.11-DS");
5763 return 0;
5764 }
5765
5766 /*------------------------------------------------------------------*/
5767 /*
5768 * Wireless Handler : set frequency
5769 */
airo_set_freq(struct net_device * dev,struct iw_request_info * info,struct iw_freq * fwrq,char * extra)5770 static int airo_set_freq(struct net_device *dev,
5771 struct iw_request_info *info,
5772 struct iw_freq *fwrq,
5773 char *extra)
5774 {
5775 struct airo_info *local = dev->ml_priv;
5776 int rc = -EINPROGRESS; /* Call commit handler */
5777
5778 /* If setting by frequency, convert to a channel */
5779 if(fwrq->e == 1) {
5780 int f = fwrq->m / 100000;
5781
5782 /* Hack to fall through... */
5783 fwrq->e = 0;
5784 fwrq->m = ieee80211_frequency_to_channel(f);
5785 }
5786 /* Setting by channel number */
5787 if (fwrq->m < 0 || fwrq->m > 1000 || fwrq->e > 0)
5788 rc = -EOPNOTSUPP;
5789 else {
5790 int channel = fwrq->m;
5791 /* We should do a better check than that,
5792 * based on the card capability !!! */
5793 if((channel < 1) || (channel > 14)) {
5794 airo_print_dbg(dev->name, "New channel value of %d is invalid!",
5795 fwrq->m);
5796 rc = -EINVAL;
5797 } else {
5798 readConfigRid(local, 1);
5799 /* Yes ! We can set it !!! */
5800 local->config.channelSet = cpu_to_le16(channel);
5801 set_bit (FLAG_COMMIT, &local->flags);
5802 }
5803 }
5804 return rc;
5805 }
5806
5807 /*------------------------------------------------------------------*/
5808 /*
5809 * Wireless Handler : get frequency
5810 */
airo_get_freq(struct net_device * dev,struct iw_request_info * info,struct iw_freq * fwrq,char * extra)5811 static int airo_get_freq(struct net_device *dev,
5812 struct iw_request_info *info,
5813 struct iw_freq *fwrq,
5814 char *extra)
5815 {
5816 struct airo_info *local = dev->ml_priv;
5817 StatusRid status_rid; /* Card status info */
5818 int ch;
5819
5820 readConfigRid(local, 1);
5821 if ((local->config.opmode & MODE_CFG_MASK) == MODE_STA_ESS)
5822 status_rid.channel = local->config.channelSet;
5823 else
5824 readStatusRid(local, &status_rid, 1);
5825
5826 ch = le16_to_cpu(status_rid.channel);
5827 if((ch > 0) && (ch < 15)) {
5828 fwrq->m = 100000 *
5829 ieee80211_channel_to_frequency(ch, NL80211_BAND_2GHZ);
5830 fwrq->e = 1;
5831 } else {
5832 fwrq->m = ch;
5833 fwrq->e = 0;
5834 }
5835
5836 return 0;
5837 }
5838
5839 /*------------------------------------------------------------------*/
5840 /*
5841 * Wireless Handler : set ESSID
5842 */
airo_set_essid(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)5843 static int airo_set_essid(struct net_device *dev,
5844 struct iw_request_info *info,
5845 struct iw_point *dwrq,
5846 char *extra)
5847 {
5848 struct airo_info *local = dev->ml_priv;
5849 SsidRid SSID_rid; /* SSIDs */
5850
5851 /* Reload the list of current SSID */
5852 readSsidRid(local, &SSID_rid);
5853
5854 /* Check if we asked for `any' */
5855 if (dwrq->flags == 0) {
5856 /* Just send an empty SSID list */
5857 memset(&SSID_rid, 0, sizeof(SSID_rid));
5858 } else {
5859 unsigned index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
5860
5861 /* Check the size of the string */
5862 if (dwrq->length > IW_ESSID_MAX_SIZE)
5863 return -E2BIG ;
5864
5865 /* Check if index is valid */
5866 if (index >= ARRAY_SIZE(SSID_rid.ssids))
5867 return -EINVAL;
5868
5869 /* Set the SSID */
5870 memset(SSID_rid.ssids[index].ssid, 0,
5871 sizeof(SSID_rid.ssids[index].ssid));
5872 memcpy(SSID_rid.ssids[index].ssid, extra, dwrq->length);
5873 SSID_rid.ssids[index].len = cpu_to_le16(dwrq->length);
5874 }
5875 SSID_rid.len = cpu_to_le16(sizeof(SSID_rid));
5876 /* Write it to the card */
5877 disable_MAC(local, 1);
5878 writeSsidRid(local, &SSID_rid, 1);
5879 enable_MAC(local, 1);
5880
5881 return 0;
5882 }
5883
5884 /*------------------------------------------------------------------*/
5885 /*
5886 * Wireless Handler : get ESSID
5887 */
airo_get_essid(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)5888 static int airo_get_essid(struct net_device *dev,
5889 struct iw_request_info *info,
5890 struct iw_point *dwrq,
5891 char *extra)
5892 {
5893 struct airo_info *local = dev->ml_priv;
5894 StatusRid status_rid; /* Card status info */
5895
5896 readStatusRid(local, &status_rid, 1);
5897
5898 /* Note : if dwrq->flags != 0, we should
5899 * get the relevant SSID from the SSID list... */
5900
5901 /* Get the current SSID */
5902 memcpy(extra, status_rid.SSID, le16_to_cpu(status_rid.SSIDlen));
5903 /* If none, we may want to get the one that was set */
5904
5905 /* Push it out ! */
5906 dwrq->length = le16_to_cpu(status_rid.SSIDlen);
5907 dwrq->flags = 1; /* active */
5908
5909 return 0;
5910 }
5911
5912 /*------------------------------------------------------------------*/
5913 /*
5914 * Wireless Handler : set AP address
5915 */
airo_set_wap(struct net_device * dev,struct iw_request_info * info,struct sockaddr * awrq,char * extra)5916 static int airo_set_wap(struct net_device *dev,
5917 struct iw_request_info *info,
5918 struct sockaddr *awrq,
5919 char *extra)
5920 {
5921 struct airo_info *local = dev->ml_priv;
5922 Cmd cmd;
5923 Resp rsp;
5924 APListRid *APList_rid = &local->APList;
5925
5926 if (awrq->sa_family != ARPHRD_ETHER)
5927 return -EINVAL;
5928 else if (is_broadcast_ether_addr(awrq->sa_data) ||
5929 is_zero_ether_addr(awrq->sa_data)) {
5930 memset(&cmd, 0, sizeof(cmd));
5931 cmd.cmd=CMD_LOSE_SYNC;
5932 if (down_interruptible(&local->sem))
5933 return -ERESTARTSYS;
5934 issuecommand(local, &cmd, &rsp);
5935 up(&local->sem);
5936 } else {
5937 memset(APList_rid, 0, sizeof(*APList_rid));
5938 APList_rid->len = cpu_to_le16(sizeof(*APList_rid));
5939 memcpy(APList_rid->ap[0], awrq->sa_data, ETH_ALEN);
5940 disable_MAC(local, 1);
5941 writeAPListRid(local, APList_rid, 1);
5942 enable_MAC(local, 1);
5943 }
5944 return 0;
5945 }
5946
5947 /*------------------------------------------------------------------*/
5948 /*
5949 * Wireless Handler : get AP address
5950 */
airo_get_wap(struct net_device * dev,struct iw_request_info * info,struct sockaddr * awrq,char * extra)5951 static int airo_get_wap(struct net_device *dev,
5952 struct iw_request_info *info,
5953 struct sockaddr *awrq,
5954 char *extra)
5955 {
5956 struct airo_info *local = dev->ml_priv;
5957 StatusRid status_rid; /* Card status info */
5958
5959 readStatusRid(local, &status_rid, 1);
5960
5961 /* Tentative. This seems to work, wow, I'm lucky !!! */
5962 memcpy(awrq->sa_data, status_rid.bssid[0], ETH_ALEN);
5963 awrq->sa_family = ARPHRD_ETHER;
5964
5965 return 0;
5966 }
5967
5968 /*------------------------------------------------------------------*/
5969 /*
5970 * Wireless Handler : set Nickname
5971 */
airo_set_nick(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)5972 static int airo_set_nick(struct net_device *dev,
5973 struct iw_request_info *info,
5974 struct iw_point *dwrq,
5975 char *extra)
5976 {
5977 struct airo_info *local = dev->ml_priv;
5978
5979 /* Check the size of the string */
5980 if(dwrq->length > 16) {
5981 return -E2BIG;
5982 }
5983 readConfigRid(local, 1);
5984 memset(local->config.nodeName, 0, sizeof(local->config.nodeName));
5985 memcpy(local->config.nodeName, extra, dwrq->length);
5986 set_bit (FLAG_COMMIT, &local->flags);
5987
5988 return -EINPROGRESS; /* Call commit handler */
5989 }
5990
5991 /*------------------------------------------------------------------*/
5992 /*
5993 * Wireless Handler : get Nickname
5994 */
airo_get_nick(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)5995 static int airo_get_nick(struct net_device *dev,
5996 struct iw_request_info *info,
5997 struct iw_point *dwrq,
5998 char *extra)
5999 {
6000 struct airo_info *local = dev->ml_priv;
6001
6002 readConfigRid(local, 1);
6003 strncpy(extra, local->config.nodeName, 16);
6004 extra[16] = '\0';
6005 dwrq->length = strlen(extra);
6006
6007 return 0;
6008 }
6009
6010 /*------------------------------------------------------------------*/
6011 /*
6012 * Wireless Handler : set Bit-Rate
6013 */
airo_set_rate(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6014 static int airo_set_rate(struct net_device *dev,
6015 struct iw_request_info *info,
6016 struct iw_param *vwrq,
6017 char *extra)
6018 {
6019 struct airo_info *local = dev->ml_priv;
6020 CapabilityRid cap_rid; /* Card capability info */
6021 u8 brate = 0;
6022 int i;
6023
6024 /* First : get a valid bit rate value */
6025 readCapabilityRid(local, &cap_rid, 1);
6026
6027 /* Which type of value ? */
6028 if((vwrq->value < 8) && (vwrq->value >= 0)) {
6029 /* Setting by rate index */
6030 /* Find value in the magic rate table */
6031 brate = cap_rid.supportedRates[vwrq->value];
6032 } else {
6033 /* Setting by frequency value */
6034 u8 normvalue = (u8) (vwrq->value/500000);
6035
6036 /* Check if rate is valid */
6037 for(i = 0 ; i < 8 ; i++) {
6038 if(normvalue == cap_rid.supportedRates[i]) {
6039 brate = normvalue;
6040 break;
6041 }
6042 }
6043 }
6044 /* -1 designed the max rate (mostly auto mode) */
6045 if(vwrq->value == -1) {
6046 /* Get the highest available rate */
6047 for(i = 0 ; i < 8 ; i++) {
6048 if(cap_rid.supportedRates[i] == 0)
6049 break;
6050 }
6051 if(i != 0)
6052 brate = cap_rid.supportedRates[i - 1];
6053 }
6054 /* Check that it is valid */
6055 if(brate == 0) {
6056 return -EINVAL;
6057 }
6058
6059 readConfigRid(local, 1);
6060 /* Now, check if we want a fixed or auto value */
6061 if(vwrq->fixed == 0) {
6062 /* Fill all the rates up to this max rate */
6063 memset(local->config.rates, 0, 8);
6064 for(i = 0 ; i < 8 ; i++) {
6065 local->config.rates[i] = cap_rid.supportedRates[i];
6066 if(local->config.rates[i] == brate)
6067 break;
6068 }
6069 } else {
6070 /* Fixed mode */
6071 /* One rate, fixed */
6072 memset(local->config.rates, 0, 8);
6073 local->config.rates[0] = brate;
6074 }
6075 set_bit (FLAG_COMMIT, &local->flags);
6076
6077 return -EINPROGRESS; /* Call commit handler */
6078 }
6079
6080 /*------------------------------------------------------------------*/
6081 /*
6082 * Wireless Handler : get Bit-Rate
6083 */
airo_get_rate(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6084 static int airo_get_rate(struct net_device *dev,
6085 struct iw_request_info *info,
6086 struct iw_param *vwrq,
6087 char *extra)
6088 {
6089 struct airo_info *local = dev->ml_priv;
6090 StatusRid status_rid; /* Card status info */
6091
6092 readStatusRid(local, &status_rid, 1);
6093
6094 vwrq->value = le16_to_cpu(status_rid.currentXmitRate) * 500000;
6095 /* If more than one rate, set auto */
6096 readConfigRid(local, 1);
6097 vwrq->fixed = (local->config.rates[1] == 0);
6098
6099 return 0;
6100 }
6101
6102 /*------------------------------------------------------------------*/
6103 /*
6104 * Wireless Handler : set RTS threshold
6105 */
airo_set_rts(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6106 static int airo_set_rts(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 int rthr = vwrq->value;
6113
6114 if(vwrq->disabled)
6115 rthr = AIRO_DEF_MTU;
6116 if((rthr < 0) || (rthr > AIRO_DEF_MTU)) {
6117 return -EINVAL;
6118 }
6119 readConfigRid(local, 1);
6120 local->config.rtsThres = cpu_to_le16(rthr);
6121 set_bit (FLAG_COMMIT, &local->flags);
6122
6123 return -EINPROGRESS; /* Call commit handler */
6124 }
6125
6126 /*------------------------------------------------------------------*/
6127 /*
6128 * Wireless Handler : get RTS threshold
6129 */
airo_get_rts(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6130 static int airo_get_rts(struct net_device *dev,
6131 struct iw_request_info *info,
6132 struct iw_param *vwrq,
6133 char *extra)
6134 {
6135 struct airo_info *local = dev->ml_priv;
6136
6137 readConfigRid(local, 1);
6138 vwrq->value = le16_to_cpu(local->config.rtsThres);
6139 vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU);
6140 vwrq->fixed = 1;
6141
6142 return 0;
6143 }
6144
6145 /*------------------------------------------------------------------*/
6146 /*
6147 * Wireless Handler : set Fragmentation threshold
6148 */
airo_set_frag(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6149 static int airo_set_frag(struct net_device *dev,
6150 struct iw_request_info *info,
6151 struct iw_param *vwrq,
6152 char *extra)
6153 {
6154 struct airo_info *local = dev->ml_priv;
6155 int fthr = vwrq->value;
6156
6157 if(vwrq->disabled)
6158 fthr = AIRO_DEF_MTU;
6159 if((fthr < 256) || (fthr > AIRO_DEF_MTU)) {
6160 return -EINVAL;
6161 }
6162 fthr &= ~0x1; /* Get an even value - is it really needed ??? */
6163 readConfigRid(local, 1);
6164 local->config.fragThresh = cpu_to_le16(fthr);
6165 set_bit (FLAG_COMMIT, &local->flags);
6166
6167 return -EINPROGRESS; /* Call commit handler */
6168 }
6169
6170 /*------------------------------------------------------------------*/
6171 /*
6172 * Wireless Handler : get Fragmentation threshold
6173 */
airo_get_frag(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6174 static int airo_get_frag(struct net_device *dev,
6175 struct iw_request_info *info,
6176 struct iw_param *vwrq,
6177 char *extra)
6178 {
6179 struct airo_info *local = dev->ml_priv;
6180
6181 readConfigRid(local, 1);
6182 vwrq->value = le16_to_cpu(local->config.fragThresh);
6183 vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU);
6184 vwrq->fixed = 1;
6185
6186 return 0;
6187 }
6188
6189 /*------------------------------------------------------------------*/
6190 /*
6191 * Wireless Handler : set Mode of Operation
6192 */
airo_set_mode(struct net_device * dev,struct iw_request_info * info,__u32 * uwrq,char * extra)6193 static int airo_set_mode(struct net_device *dev,
6194 struct iw_request_info *info,
6195 __u32 *uwrq,
6196 char *extra)
6197 {
6198 struct airo_info *local = dev->ml_priv;
6199 int reset = 0;
6200
6201 readConfigRid(local, 1);
6202 if (sniffing_mode(local))
6203 reset = 1;
6204
6205 switch(*uwrq) {
6206 case IW_MODE_ADHOC:
6207 local->config.opmode &= ~MODE_CFG_MASK;
6208 local->config.opmode |= MODE_STA_IBSS;
6209 local->config.rmode &= ~RXMODE_FULL_MASK;
6210 local->config.scanMode = SCANMODE_ACTIVE;
6211 clear_bit (FLAG_802_11, &local->flags);
6212 break;
6213 case IW_MODE_INFRA:
6214 local->config.opmode &= ~MODE_CFG_MASK;
6215 local->config.opmode |= MODE_STA_ESS;
6216 local->config.rmode &= ~RXMODE_FULL_MASK;
6217 local->config.scanMode = SCANMODE_ACTIVE;
6218 clear_bit (FLAG_802_11, &local->flags);
6219 break;
6220 case IW_MODE_MASTER:
6221 local->config.opmode &= ~MODE_CFG_MASK;
6222 local->config.opmode |= MODE_AP;
6223 local->config.rmode &= ~RXMODE_FULL_MASK;
6224 local->config.scanMode = SCANMODE_ACTIVE;
6225 clear_bit (FLAG_802_11, &local->flags);
6226 break;
6227 case IW_MODE_REPEAT:
6228 local->config.opmode &= ~MODE_CFG_MASK;
6229 local->config.opmode |= MODE_AP_RPTR;
6230 local->config.rmode &= ~RXMODE_FULL_MASK;
6231 local->config.scanMode = SCANMODE_ACTIVE;
6232 clear_bit (FLAG_802_11, &local->flags);
6233 break;
6234 case IW_MODE_MONITOR:
6235 local->config.opmode &= ~MODE_CFG_MASK;
6236 local->config.opmode |= MODE_STA_ESS;
6237 local->config.rmode &= ~RXMODE_FULL_MASK;
6238 local->config.rmode |= RXMODE_RFMON | RXMODE_DISABLE_802_3_HEADER;
6239 local->config.scanMode = SCANMODE_PASSIVE;
6240 set_bit (FLAG_802_11, &local->flags);
6241 break;
6242 default:
6243 return -EINVAL;
6244 }
6245 if (reset)
6246 set_bit (FLAG_RESET, &local->flags);
6247 set_bit (FLAG_COMMIT, &local->flags);
6248
6249 return -EINPROGRESS; /* Call commit handler */
6250 }
6251
6252 /*------------------------------------------------------------------*/
6253 /*
6254 * Wireless Handler : get Mode of Operation
6255 */
airo_get_mode(struct net_device * dev,struct iw_request_info * info,__u32 * uwrq,char * extra)6256 static int airo_get_mode(struct net_device *dev,
6257 struct iw_request_info *info,
6258 __u32 *uwrq,
6259 char *extra)
6260 {
6261 struct airo_info *local = dev->ml_priv;
6262
6263 readConfigRid(local, 1);
6264 /* If not managed, assume it's ad-hoc */
6265 switch (local->config.opmode & MODE_CFG_MASK) {
6266 case MODE_STA_ESS:
6267 *uwrq = IW_MODE_INFRA;
6268 break;
6269 case MODE_AP:
6270 *uwrq = IW_MODE_MASTER;
6271 break;
6272 case MODE_AP_RPTR:
6273 *uwrq = IW_MODE_REPEAT;
6274 break;
6275 default:
6276 *uwrq = IW_MODE_ADHOC;
6277 }
6278
6279 return 0;
6280 }
6281
valid_index(struct airo_info * ai,int index)6282 static inline int valid_index(struct airo_info *ai, int index)
6283 {
6284 return (index >= 0) && (index <= ai->max_wep_idx);
6285 }
6286
6287 /*------------------------------------------------------------------*/
6288 /*
6289 * Wireless Handler : set Encryption Key
6290 */
airo_set_encode(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6291 static int airo_set_encode(struct net_device *dev,
6292 struct iw_request_info *info,
6293 struct iw_point *dwrq,
6294 char *extra)
6295 {
6296 struct airo_info *local = dev->ml_priv;
6297 int perm = (dwrq->flags & IW_ENCODE_TEMP ? 0 : 1);
6298 __le16 currentAuthType = local->config.authType;
6299 int rc = 0;
6300
6301 if (!local->wep_capable)
6302 return -EOPNOTSUPP;
6303
6304 readConfigRid(local, 1);
6305
6306 /* Basic checking: do we have a key to set ?
6307 * Note : with the new API, it's impossible to get a NULL pointer.
6308 * Therefore, we need to check a key size == 0 instead.
6309 * New version of iwconfig properly set the IW_ENCODE_NOKEY flag
6310 * when no key is present (only change flags), but older versions
6311 * don't do it. - Jean II */
6312 if (dwrq->length > 0) {
6313 wep_key_t key;
6314 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6315 int current_index;
6316
6317 /* Check the size of the key */
6318 if (dwrq->length > MAX_KEY_SIZE) {
6319 return -EINVAL;
6320 }
6321
6322 current_index = get_wep_tx_idx(local);
6323 if (current_index < 0)
6324 current_index = 0;
6325
6326 /* Check the index (none -> use current) */
6327 if (!valid_index(local, index))
6328 index = current_index;
6329
6330 /* Set the length */
6331 if (dwrq->length > MIN_KEY_SIZE)
6332 key.len = MAX_KEY_SIZE;
6333 else
6334 key.len = MIN_KEY_SIZE;
6335 /* Check if the key is not marked as invalid */
6336 if(!(dwrq->flags & IW_ENCODE_NOKEY)) {
6337 /* Cleanup */
6338 memset(key.key, 0, MAX_KEY_SIZE);
6339 /* Copy the key in the driver */
6340 memcpy(key.key, extra, dwrq->length);
6341 /* Send the key to the card */
6342 rc = set_wep_key(local, index, key.key, key.len, perm, 1);
6343 if (rc < 0) {
6344 airo_print_err(local->dev->name, "failed to set"
6345 " WEP key at index %d: %d.",
6346 index, rc);
6347 return rc;
6348 }
6349 }
6350 /* WE specify that if a valid key is set, encryption
6351 * should be enabled (user may turn it off later)
6352 * This is also how "iwconfig ethX key on" works */
6353 if((index == current_index) && (key.len > 0) &&
6354 (local->config.authType == AUTH_OPEN))
6355 set_auth_type(local, AUTH_ENCRYPT);
6356 } else {
6357 /* Do we want to just set the transmit key index ? */
6358 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6359 if (valid_index(local, index)) {
6360 rc = set_wep_tx_idx(local, index, perm, 1);
6361 if (rc < 0) {
6362 airo_print_err(local->dev->name, "failed to set"
6363 " WEP transmit index to %d: %d.",
6364 index, rc);
6365 return rc;
6366 }
6367 } else {
6368 /* Don't complain if only change the mode */
6369 if (!(dwrq->flags & IW_ENCODE_MODE))
6370 return -EINVAL;
6371 }
6372 }
6373 /* Read the flags */
6374 if (dwrq->flags & IW_ENCODE_DISABLED)
6375 set_auth_type(local, AUTH_OPEN); /* disable encryption */
6376 if(dwrq->flags & IW_ENCODE_RESTRICTED)
6377 set_auth_type(local, AUTH_SHAREDKEY); /* Only Both */
6378 if (dwrq->flags & IW_ENCODE_OPEN)
6379 set_auth_type(local, AUTH_ENCRYPT); /* Only Wep */
6380 /* Commit the changes to flags if needed */
6381 if (local->config.authType != currentAuthType)
6382 set_bit (FLAG_COMMIT, &local->flags);
6383 return -EINPROGRESS; /* Call commit handler */
6384 }
6385
6386 /*------------------------------------------------------------------*/
6387 /*
6388 * Wireless Handler : get Encryption Key
6389 */
airo_get_encode(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6390 static int airo_get_encode(struct net_device *dev,
6391 struct iw_request_info *info,
6392 struct iw_point *dwrq,
6393 char *extra)
6394 {
6395 struct airo_info *local = dev->ml_priv;
6396 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6397 int wep_key_len;
6398 u8 buf[16];
6399
6400 if (!local->wep_capable)
6401 return -EOPNOTSUPP;
6402
6403 readConfigRid(local, 1);
6404
6405 /* Check encryption mode */
6406 switch(local->config.authType) {
6407 case AUTH_ENCRYPT:
6408 dwrq->flags = IW_ENCODE_OPEN;
6409 break;
6410 case AUTH_SHAREDKEY:
6411 dwrq->flags = IW_ENCODE_RESTRICTED;
6412 break;
6413 default:
6414 case AUTH_OPEN:
6415 dwrq->flags = IW_ENCODE_DISABLED;
6416 break;
6417 }
6418 /* We can't return the key, so set the proper flag and return zero */
6419 dwrq->flags |= IW_ENCODE_NOKEY;
6420 memset(extra, 0, 16);
6421
6422 /* Which key do we want ? -1 -> tx index */
6423 if (!valid_index(local, index)) {
6424 index = get_wep_tx_idx(local);
6425 if (index < 0)
6426 index = 0;
6427 }
6428 dwrq->flags |= index + 1;
6429
6430 /* Copy the key to the user buffer */
6431 wep_key_len = get_wep_key(local, index, &buf[0], sizeof(buf));
6432 if (wep_key_len < 0) {
6433 dwrq->length = 0;
6434 } else {
6435 dwrq->length = wep_key_len;
6436 memcpy(extra, buf, dwrq->length);
6437 }
6438
6439 return 0;
6440 }
6441
6442 /*------------------------------------------------------------------*/
6443 /*
6444 * Wireless Handler : set extended Encryption parameters
6445 */
airo_set_encodeext(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6446 static int airo_set_encodeext(struct net_device *dev,
6447 struct iw_request_info *info,
6448 union iwreq_data *wrqu,
6449 char *extra)
6450 {
6451 struct airo_info *local = dev->ml_priv;
6452 struct iw_point *encoding = &wrqu->encoding;
6453 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6454 int perm = ( encoding->flags & IW_ENCODE_TEMP ? 0 : 1 );
6455 __le16 currentAuthType = local->config.authType;
6456 int idx, key_len, alg = ext->alg, set_key = 1, rc;
6457 wep_key_t key;
6458
6459 if (!local->wep_capable)
6460 return -EOPNOTSUPP;
6461
6462 readConfigRid(local, 1);
6463
6464 /* Determine and validate the key index */
6465 idx = encoding->flags & IW_ENCODE_INDEX;
6466 if (idx) {
6467 if (!valid_index(local, idx - 1))
6468 return -EINVAL;
6469 idx--;
6470 } else {
6471 idx = get_wep_tx_idx(local);
6472 if (idx < 0)
6473 idx = 0;
6474 }
6475
6476 if (encoding->flags & IW_ENCODE_DISABLED)
6477 alg = IW_ENCODE_ALG_NONE;
6478
6479 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
6480 /* Only set transmit key index here, actual
6481 * key is set below if needed.
6482 */
6483 rc = set_wep_tx_idx(local, idx, perm, 1);
6484 if (rc < 0) {
6485 airo_print_err(local->dev->name, "failed to set "
6486 "WEP transmit index to %d: %d.",
6487 idx, rc);
6488 return rc;
6489 }
6490 set_key = ext->key_len > 0 ? 1 : 0;
6491 }
6492
6493 if (set_key) {
6494 /* Set the requested key first */
6495 memset(key.key, 0, MAX_KEY_SIZE);
6496 switch (alg) {
6497 case IW_ENCODE_ALG_NONE:
6498 key.len = 0;
6499 break;
6500 case IW_ENCODE_ALG_WEP:
6501 if (ext->key_len > MIN_KEY_SIZE) {
6502 key.len = MAX_KEY_SIZE;
6503 } else if (ext->key_len > 0) {
6504 key.len = MIN_KEY_SIZE;
6505 } else {
6506 return -EINVAL;
6507 }
6508 key_len = min (ext->key_len, key.len);
6509 memcpy(key.key, ext->key, key_len);
6510 break;
6511 default:
6512 return -EINVAL;
6513 }
6514 if (key.len == 0) {
6515 rc = set_wep_tx_idx(local, idx, perm, 1);
6516 if (rc < 0) {
6517 airo_print_err(local->dev->name,
6518 "failed to set WEP transmit index to %d: %d.",
6519 idx, rc);
6520 return rc;
6521 }
6522 } else {
6523 rc = set_wep_key(local, idx, key.key, key.len, perm, 1);
6524 if (rc < 0) {
6525 airo_print_err(local->dev->name,
6526 "failed to set WEP key at index %d: %d.",
6527 idx, rc);
6528 return rc;
6529 }
6530 }
6531 }
6532
6533 /* Read the flags */
6534 if (encoding->flags & IW_ENCODE_DISABLED)
6535 set_auth_type(local, AUTH_OPEN); /* disable encryption */
6536 if(encoding->flags & IW_ENCODE_RESTRICTED)
6537 set_auth_type(local, AUTH_SHAREDKEY); /* Only Both */
6538 if (encoding->flags & IW_ENCODE_OPEN)
6539 set_auth_type(local, AUTH_ENCRYPT);
6540 /* Commit the changes to flags if needed */
6541 if (local->config.authType != currentAuthType)
6542 set_bit (FLAG_COMMIT, &local->flags);
6543
6544 return -EINPROGRESS;
6545 }
6546
6547
6548 /*------------------------------------------------------------------*/
6549 /*
6550 * Wireless Handler : get extended Encryption parameters
6551 */
airo_get_encodeext(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6552 static int airo_get_encodeext(struct net_device *dev,
6553 struct iw_request_info *info,
6554 union iwreq_data *wrqu,
6555 char *extra)
6556 {
6557 struct airo_info *local = dev->ml_priv;
6558 struct iw_point *encoding = &wrqu->encoding;
6559 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6560 int idx, max_key_len, wep_key_len;
6561 u8 buf[16];
6562
6563 if (!local->wep_capable)
6564 return -EOPNOTSUPP;
6565
6566 readConfigRid(local, 1);
6567
6568 max_key_len = encoding->length - sizeof(*ext);
6569 if (max_key_len < 0)
6570 return -EINVAL;
6571
6572 idx = encoding->flags & IW_ENCODE_INDEX;
6573 if (idx) {
6574 if (!valid_index(local, idx - 1))
6575 return -EINVAL;
6576 idx--;
6577 } else {
6578 idx = get_wep_tx_idx(local);
6579 if (idx < 0)
6580 idx = 0;
6581 }
6582
6583 encoding->flags = idx + 1;
6584 memset(ext, 0, sizeof(*ext));
6585
6586 /* Check encryption mode */
6587 switch(local->config.authType) {
6588 case AUTH_ENCRYPT:
6589 encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED;
6590 break;
6591 case AUTH_SHAREDKEY:
6592 encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED;
6593 break;
6594 default:
6595 case AUTH_OPEN:
6596 encoding->flags = IW_ENCODE_ALG_NONE | IW_ENCODE_DISABLED;
6597 break;
6598 }
6599 /* We can't return the key, so set the proper flag and return zero */
6600 encoding->flags |= IW_ENCODE_NOKEY;
6601 memset(extra, 0, 16);
6602
6603 /* Copy the key to the user buffer */
6604 wep_key_len = get_wep_key(local, idx, &buf[0], sizeof(buf));
6605 if (wep_key_len < 0) {
6606 ext->key_len = 0;
6607 } else {
6608 ext->key_len = wep_key_len;
6609 memcpy(extra, buf, ext->key_len);
6610 }
6611
6612 return 0;
6613 }
6614
6615
6616 /*------------------------------------------------------------------*/
6617 /*
6618 * Wireless Handler : set extended authentication parameters
6619 */
airo_set_auth(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6620 static int airo_set_auth(struct net_device *dev,
6621 struct iw_request_info *info,
6622 union iwreq_data *wrqu, char *extra)
6623 {
6624 struct airo_info *local = dev->ml_priv;
6625 struct iw_param *param = &wrqu->param;
6626 __le16 currentAuthType = local->config.authType;
6627
6628 switch (param->flags & IW_AUTH_INDEX) {
6629 case IW_AUTH_WPA_VERSION:
6630 case IW_AUTH_CIPHER_PAIRWISE:
6631 case IW_AUTH_CIPHER_GROUP:
6632 case IW_AUTH_KEY_MGMT:
6633 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6634 case IW_AUTH_PRIVACY_INVOKED:
6635 /*
6636 * airo does not use these parameters
6637 */
6638 break;
6639
6640 case IW_AUTH_DROP_UNENCRYPTED:
6641 if (param->value) {
6642 /* Only change auth type if unencrypted */
6643 if (currentAuthType == AUTH_OPEN)
6644 set_auth_type(local, AUTH_ENCRYPT);
6645 } else {
6646 set_auth_type(local, AUTH_OPEN);
6647 }
6648
6649 /* Commit the changes to flags if needed */
6650 if (local->config.authType != currentAuthType)
6651 set_bit (FLAG_COMMIT, &local->flags);
6652 break;
6653
6654 case IW_AUTH_80211_AUTH_ALG: {
6655 if (param->value & IW_AUTH_ALG_SHARED_KEY) {
6656 set_auth_type(local, AUTH_SHAREDKEY);
6657 } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
6658 /* We don't know here if WEP open system or
6659 * unencrypted mode was requested - so use the
6660 * last mode (of these two) used last time
6661 */
6662 set_auth_type(local, local->last_auth);
6663 } else
6664 return -EINVAL;
6665
6666 /* Commit the changes to flags if needed */
6667 if (local->config.authType != currentAuthType)
6668 set_bit (FLAG_COMMIT, &local->flags);
6669 break;
6670 }
6671
6672 case IW_AUTH_WPA_ENABLED:
6673 /* Silently accept disable of WPA */
6674 if (param->value > 0)
6675 return -EOPNOTSUPP;
6676 break;
6677
6678 default:
6679 return -EOPNOTSUPP;
6680 }
6681 return -EINPROGRESS;
6682 }
6683
6684
6685 /*------------------------------------------------------------------*/
6686 /*
6687 * Wireless Handler : get extended authentication parameters
6688 */
airo_get_auth(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6689 static int airo_get_auth(struct net_device *dev,
6690 struct iw_request_info *info,
6691 union iwreq_data *wrqu, char *extra)
6692 {
6693 struct airo_info *local = dev->ml_priv;
6694 struct iw_param *param = &wrqu->param;
6695 __le16 currentAuthType = local->config.authType;
6696
6697 switch (param->flags & IW_AUTH_INDEX) {
6698 case IW_AUTH_DROP_UNENCRYPTED:
6699 switch (currentAuthType) {
6700 case AUTH_SHAREDKEY:
6701 case AUTH_ENCRYPT:
6702 param->value = 1;
6703 break;
6704 default:
6705 param->value = 0;
6706 break;
6707 }
6708 break;
6709
6710 case IW_AUTH_80211_AUTH_ALG:
6711 switch (currentAuthType) {
6712 case AUTH_SHAREDKEY:
6713 param->value = IW_AUTH_ALG_SHARED_KEY;
6714 break;
6715 case AUTH_ENCRYPT:
6716 default:
6717 param->value = IW_AUTH_ALG_OPEN_SYSTEM;
6718 break;
6719 }
6720 break;
6721
6722 case IW_AUTH_WPA_ENABLED:
6723 param->value = 0;
6724 break;
6725
6726 default:
6727 return -EOPNOTSUPP;
6728 }
6729 return 0;
6730 }
6731
6732
6733 /*------------------------------------------------------------------*/
6734 /*
6735 * Wireless Handler : set Tx-Power
6736 */
airo_set_txpow(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6737 static int airo_set_txpow(struct net_device *dev,
6738 struct iw_request_info *info,
6739 struct iw_param *vwrq,
6740 char *extra)
6741 {
6742 struct airo_info *local = dev->ml_priv;
6743 CapabilityRid cap_rid; /* Card capability info */
6744 int i;
6745 int rc = -EINVAL;
6746 __le16 v = cpu_to_le16(vwrq->value);
6747
6748 readCapabilityRid(local, &cap_rid, 1);
6749
6750 if (vwrq->disabled) {
6751 set_bit (FLAG_RADIO_OFF, &local->flags);
6752 set_bit (FLAG_COMMIT, &local->flags);
6753 return -EINPROGRESS; /* Call commit handler */
6754 }
6755 if (vwrq->flags != IW_TXPOW_MWATT) {
6756 return -EINVAL;
6757 }
6758 clear_bit (FLAG_RADIO_OFF, &local->flags);
6759 for (i = 0; i < 8 && cap_rid.txPowerLevels[i]; i++)
6760 if (v == cap_rid.txPowerLevels[i]) {
6761 readConfigRid(local, 1);
6762 local->config.txPower = v;
6763 set_bit (FLAG_COMMIT, &local->flags);
6764 rc = -EINPROGRESS; /* Call commit handler */
6765 break;
6766 }
6767 return rc;
6768 }
6769
6770 /*------------------------------------------------------------------*/
6771 /*
6772 * Wireless Handler : get Tx-Power
6773 */
airo_get_txpow(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6774 static int airo_get_txpow(struct net_device *dev,
6775 struct iw_request_info *info,
6776 struct iw_param *vwrq,
6777 char *extra)
6778 {
6779 struct airo_info *local = dev->ml_priv;
6780
6781 readConfigRid(local, 1);
6782 vwrq->value = le16_to_cpu(local->config.txPower);
6783 vwrq->fixed = 1; /* No power control */
6784 vwrq->disabled = test_bit(FLAG_RADIO_OFF, &local->flags);
6785 vwrq->flags = IW_TXPOW_MWATT;
6786
6787 return 0;
6788 }
6789
6790 /*------------------------------------------------------------------*/
6791 /*
6792 * Wireless Handler : set Retry limits
6793 */
airo_set_retry(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6794 static int airo_set_retry(struct net_device *dev,
6795 struct iw_request_info *info,
6796 struct iw_param *vwrq,
6797 char *extra)
6798 {
6799 struct airo_info *local = dev->ml_priv;
6800 int rc = -EINVAL;
6801
6802 if(vwrq->disabled) {
6803 return -EINVAL;
6804 }
6805 readConfigRid(local, 1);
6806 if(vwrq->flags & IW_RETRY_LIMIT) {
6807 __le16 v = cpu_to_le16(vwrq->value);
6808 if(vwrq->flags & IW_RETRY_LONG)
6809 local->config.longRetryLimit = v;
6810 else if (vwrq->flags & IW_RETRY_SHORT)
6811 local->config.shortRetryLimit = v;
6812 else {
6813 /* No modifier : set both */
6814 local->config.longRetryLimit = v;
6815 local->config.shortRetryLimit = v;
6816 }
6817 set_bit (FLAG_COMMIT, &local->flags);
6818 rc = -EINPROGRESS; /* Call commit handler */
6819 }
6820 if(vwrq->flags & IW_RETRY_LIFETIME) {
6821 local->config.txLifetime = cpu_to_le16(vwrq->value / 1024);
6822 set_bit (FLAG_COMMIT, &local->flags);
6823 rc = -EINPROGRESS; /* Call commit handler */
6824 }
6825 return rc;
6826 }
6827
6828 /*------------------------------------------------------------------*/
6829 /*
6830 * Wireless Handler : get Retry limits
6831 */
airo_get_retry(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6832 static int airo_get_retry(struct net_device *dev,
6833 struct iw_request_info *info,
6834 struct iw_param *vwrq,
6835 char *extra)
6836 {
6837 struct airo_info *local = dev->ml_priv;
6838
6839 vwrq->disabled = 0; /* Can't be disabled */
6840
6841 readConfigRid(local, 1);
6842 /* Note : by default, display the min retry number */
6843 if((vwrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
6844 vwrq->flags = IW_RETRY_LIFETIME;
6845 vwrq->value = le16_to_cpu(local->config.txLifetime) * 1024;
6846 } else if((vwrq->flags & IW_RETRY_LONG)) {
6847 vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
6848 vwrq->value = le16_to_cpu(local->config.longRetryLimit);
6849 } else {
6850 vwrq->flags = IW_RETRY_LIMIT;
6851 vwrq->value = le16_to_cpu(local->config.shortRetryLimit);
6852 if(local->config.shortRetryLimit != local->config.longRetryLimit)
6853 vwrq->flags |= IW_RETRY_SHORT;
6854 }
6855
6856 return 0;
6857 }
6858
6859 /*------------------------------------------------------------------*/
6860 /*
6861 * Wireless Handler : get range info
6862 */
airo_get_range(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6863 static int airo_get_range(struct net_device *dev,
6864 struct iw_request_info *info,
6865 struct iw_point *dwrq,
6866 char *extra)
6867 {
6868 struct airo_info *local = dev->ml_priv;
6869 struct iw_range *range = (struct iw_range *) extra;
6870 CapabilityRid cap_rid; /* Card capability info */
6871 int i;
6872 int k;
6873
6874 readCapabilityRid(local, &cap_rid, 1);
6875
6876 dwrq->length = sizeof(struct iw_range);
6877 memset(range, 0, sizeof(*range));
6878 range->min_nwid = 0x0000;
6879 range->max_nwid = 0x0000;
6880 range->num_channels = 14;
6881 /* Should be based on cap_rid.country to give only
6882 * what the current card support */
6883 k = 0;
6884 for(i = 0; i < 14; i++) {
6885 range->freq[k].i = i + 1; /* List index */
6886 range->freq[k].m = 100000 *
6887 ieee80211_channel_to_frequency(i + 1, NL80211_BAND_2GHZ);
6888 range->freq[k++].e = 1; /* Values in MHz -> * 10^5 * 10 */
6889 }
6890 range->num_frequency = k;
6891
6892 range->sensitivity = 65535;
6893
6894 /* Hum... Should put the right values there */
6895 if (local->rssi)
6896 range->max_qual.qual = 100; /* % */
6897 else
6898 range->max_qual.qual = airo_get_max_quality(&cap_rid);
6899 range->max_qual.level = 0x100 - 120; /* -120 dBm */
6900 range->max_qual.noise = 0x100 - 120; /* -120 dBm */
6901
6902 /* Experimental measurements - boundary 11/5.5 Mb/s */
6903 /* Note : with or without the (local->rssi), results
6904 * are somewhat different. - Jean II */
6905 if (local->rssi) {
6906 range->avg_qual.qual = 50; /* % */
6907 range->avg_qual.level = 0x100 - 70; /* -70 dBm */
6908 } else {
6909 range->avg_qual.qual = airo_get_avg_quality(&cap_rid);
6910 range->avg_qual.level = 0x100 - 80; /* -80 dBm */
6911 }
6912 range->avg_qual.noise = 0x100 - 85; /* -85 dBm */
6913
6914 for(i = 0 ; i < 8 ; i++) {
6915 range->bitrate[i] = cap_rid.supportedRates[i] * 500000;
6916 if(range->bitrate[i] == 0)
6917 break;
6918 }
6919 range->num_bitrates = i;
6920
6921 /* Set an indication of the max TCP throughput
6922 * in bit/s that we can expect using this interface.
6923 * May be use for QoS stuff... Jean II */
6924 if(i > 2)
6925 range->throughput = 5000 * 1000;
6926 else
6927 range->throughput = 1500 * 1000;
6928
6929 range->min_rts = 0;
6930 range->max_rts = AIRO_DEF_MTU;
6931 range->min_frag = 256;
6932 range->max_frag = AIRO_DEF_MTU;
6933
6934 if(cap_rid.softCap & cpu_to_le16(2)) {
6935 // WEP: RC4 40 bits
6936 range->encoding_size[0] = 5;
6937 // RC4 ~128 bits
6938 if (cap_rid.softCap & cpu_to_le16(0x100)) {
6939 range->encoding_size[1] = 13;
6940 range->num_encoding_sizes = 2;
6941 } else
6942 range->num_encoding_sizes = 1;
6943 range->max_encoding_tokens =
6944 cap_rid.softCap & cpu_to_le16(0x80) ? 4 : 1;
6945 } else {
6946 range->num_encoding_sizes = 0;
6947 range->max_encoding_tokens = 0;
6948 }
6949 range->min_pmp = 0;
6950 range->max_pmp = 5000000; /* 5 secs */
6951 range->min_pmt = 0;
6952 range->max_pmt = 65535 * 1024; /* ??? */
6953 range->pmp_flags = IW_POWER_PERIOD;
6954 range->pmt_flags = IW_POWER_TIMEOUT;
6955 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R;
6956
6957 /* Transmit Power - values are in mW */
6958 for(i = 0 ; i < 8 ; i++) {
6959 range->txpower[i] = le16_to_cpu(cap_rid.txPowerLevels[i]);
6960 if(range->txpower[i] == 0)
6961 break;
6962 }
6963 range->num_txpower = i;
6964 range->txpower_capa = IW_TXPOW_MWATT;
6965 range->we_version_source = 19;
6966 range->we_version_compiled = WIRELESS_EXT;
6967 range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
6968 range->retry_flags = IW_RETRY_LIMIT;
6969 range->r_time_flags = IW_RETRY_LIFETIME;
6970 range->min_retry = 1;
6971 range->max_retry = 65535;
6972 range->min_r_time = 1024;
6973 range->max_r_time = 65535 * 1024;
6974
6975 /* Event capability (kernel + driver) */
6976 range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
6977 IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) |
6978 IW_EVENT_CAPA_MASK(SIOCGIWAP) |
6979 IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
6980 range->event_capa[1] = IW_EVENT_CAPA_K_1;
6981 range->event_capa[4] = IW_EVENT_CAPA_MASK(IWEVTXDROP);
6982 return 0;
6983 }
6984
6985 /*------------------------------------------------------------------*/
6986 /*
6987 * Wireless Handler : set Power Management
6988 */
airo_set_power(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6989 static int airo_set_power(struct net_device *dev,
6990 struct iw_request_info *info,
6991 struct iw_param *vwrq,
6992 char *extra)
6993 {
6994 struct airo_info *local = dev->ml_priv;
6995
6996 readConfigRid(local, 1);
6997 if (vwrq->disabled) {
6998 if (sniffing_mode(local))
6999 return -EINVAL;
7000 local->config.powerSaveMode = POWERSAVE_CAM;
7001 local->config.rmode &= ~RXMODE_MASK;
7002 local->config.rmode |= RXMODE_BC_MC_ADDR;
7003 set_bit (FLAG_COMMIT, &local->flags);
7004 return -EINPROGRESS; /* Call commit handler */
7005 }
7006 if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
7007 local->config.fastListenDelay = cpu_to_le16((vwrq->value + 500) / 1024);
7008 local->config.powerSaveMode = POWERSAVE_PSPCAM;
7009 set_bit (FLAG_COMMIT, &local->flags);
7010 } else if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_PERIOD) {
7011 local->config.fastListenInterval =
7012 local->config.listenInterval =
7013 cpu_to_le16((vwrq->value + 500) / 1024);
7014 local->config.powerSaveMode = POWERSAVE_PSPCAM;
7015 set_bit (FLAG_COMMIT, &local->flags);
7016 }
7017 switch (vwrq->flags & IW_POWER_MODE) {
7018 case IW_POWER_UNICAST_R:
7019 if (sniffing_mode(local))
7020 return -EINVAL;
7021 local->config.rmode &= ~RXMODE_MASK;
7022 local->config.rmode |= RXMODE_ADDR;
7023 set_bit (FLAG_COMMIT, &local->flags);
7024 break;
7025 case IW_POWER_ALL_R:
7026 if (sniffing_mode(local))
7027 return -EINVAL;
7028 local->config.rmode &= ~RXMODE_MASK;
7029 local->config.rmode |= RXMODE_BC_MC_ADDR;
7030 set_bit (FLAG_COMMIT, &local->flags);
7031 case IW_POWER_ON:
7032 /* This is broken, fixme ;-) */
7033 break;
7034 default:
7035 return -EINVAL;
7036 }
7037 // Note : we may want to factor local->need_commit here
7038 // Note2 : may also want to factor RXMODE_RFMON test
7039 return -EINPROGRESS; /* Call commit handler */
7040 }
7041
7042 /*------------------------------------------------------------------*/
7043 /*
7044 * Wireless Handler : get Power Management
7045 */
airo_get_power(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7046 static int airo_get_power(struct net_device *dev,
7047 struct iw_request_info *info,
7048 struct iw_param *vwrq,
7049 char *extra)
7050 {
7051 struct airo_info *local = dev->ml_priv;
7052 __le16 mode;
7053
7054 readConfigRid(local, 1);
7055 mode = local->config.powerSaveMode;
7056 if ((vwrq->disabled = (mode == POWERSAVE_CAM)))
7057 return 0;
7058 if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
7059 vwrq->value = le16_to_cpu(local->config.fastListenDelay) * 1024;
7060 vwrq->flags = IW_POWER_TIMEOUT;
7061 } else {
7062 vwrq->value = le16_to_cpu(local->config.fastListenInterval) * 1024;
7063 vwrq->flags = IW_POWER_PERIOD;
7064 }
7065 if ((local->config.rmode & RXMODE_MASK) == RXMODE_ADDR)
7066 vwrq->flags |= IW_POWER_UNICAST_R;
7067 else
7068 vwrq->flags |= IW_POWER_ALL_R;
7069
7070 return 0;
7071 }
7072
7073 /*------------------------------------------------------------------*/
7074 /*
7075 * Wireless Handler : set Sensitivity
7076 */
airo_set_sens(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7077 static int airo_set_sens(struct net_device *dev,
7078 struct iw_request_info *info,
7079 struct iw_param *vwrq,
7080 char *extra)
7081 {
7082 struct airo_info *local = dev->ml_priv;
7083
7084 readConfigRid(local, 1);
7085 local->config.rssiThreshold =
7086 cpu_to_le16(vwrq->disabled ? RSSI_DEFAULT : vwrq->value);
7087 set_bit (FLAG_COMMIT, &local->flags);
7088
7089 return -EINPROGRESS; /* Call commit handler */
7090 }
7091
7092 /*------------------------------------------------------------------*/
7093 /*
7094 * Wireless Handler : get Sensitivity
7095 */
airo_get_sens(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7096 static int airo_get_sens(struct net_device *dev,
7097 struct iw_request_info *info,
7098 struct iw_param *vwrq,
7099 char *extra)
7100 {
7101 struct airo_info *local = dev->ml_priv;
7102
7103 readConfigRid(local, 1);
7104 vwrq->value = le16_to_cpu(local->config.rssiThreshold);
7105 vwrq->disabled = (vwrq->value == 0);
7106 vwrq->fixed = 1;
7107
7108 return 0;
7109 }
7110
7111 /*------------------------------------------------------------------*/
7112 /*
7113 * Wireless Handler : get AP List
7114 * Note : this is deprecated in favor of IWSCAN
7115 */
airo_get_aplist(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)7116 static int airo_get_aplist(struct net_device *dev,
7117 struct iw_request_info *info,
7118 struct iw_point *dwrq,
7119 char *extra)
7120 {
7121 struct airo_info *local = dev->ml_priv;
7122 struct sockaddr *address = (struct sockaddr *) extra;
7123 struct iw_quality *qual;
7124 BSSListRid BSSList;
7125 int i;
7126 int loseSync = capable(CAP_NET_ADMIN) ? 1: -1;
7127
7128 qual = kmalloc_array(IW_MAX_AP, sizeof(*qual), GFP_KERNEL);
7129 if (!qual)
7130 return -ENOMEM;
7131
7132 for (i = 0; i < IW_MAX_AP; i++) {
7133 u16 dBm;
7134 if (readBSSListRid(local, loseSync, &BSSList))
7135 break;
7136 loseSync = 0;
7137 memcpy(address[i].sa_data, BSSList.bssid, ETH_ALEN);
7138 address[i].sa_family = ARPHRD_ETHER;
7139 dBm = le16_to_cpu(BSSList.dBm);
7140 if (local->rssi) {
7141 qual[i].level = 0x100 - dBm;
7142 qual[i].qual = airo_dbm_to_pct(local->rssi, dBm);
7143 qual[i].updated = IW_QUAL_QUAL_UPDATED
7144 | IW_QUAL_LEVEL_UPDATED
7145 | IW_QUAL_DBM;
7146 } else {
7147 qual[i].level = (dBm + 321) / 2;
7148 qual[i].qual = 0;
7149 qual[i].updated = IW_QUAL_QUAL_INVALID
7150 | IW_QUAL_LEVEL_UPDATED
7151 | IW_QUAL_DBM;
7152 }
7153 qual[i].noise = local->wstats.qual.noise;
7154 if (BSSList.index == cpu_to_le16(0xffff))
7155 break;
7156 }
7157 if (!i) {
7158 StatusRid status_rid; /* Card status info */
7159 readStatusRid(local, &status_rid, 1);
7160 for (i = 0;
7161 i < min(IW_MAX_AP, 4) &&
7162 (status_rid.bssid[i][0]
7163 & status_rid.bssid[i][1]
7164 & status_rid.bssid[i][2]
7165 & status_rid.bssid[i][3]
7166 & status_rid.bssid[i][4]
7167 & status_rid.bssid[i][5])!=0xff &&
7168 (status_rid.bssid[i][0]
7169 | status_rid.bssid[i][1]
7170 | status_rid.bssid[i][2]
7171 | status_rid.bssid[i][3]
7172 | status_rid.bssid[i][4]
7173 | status_rid.bssid[i][5]);
7174 i++) {
7175 memcpy(address[i].sa_data,
7176 status_rid.bssid[i], ETH_ALEN);
7177 address[i].sa_family = ARPHRD_ETHER;
7178 }
7179 } else {
7180 dwrq->flags = 1; /* Should be define'd */
7181 memcpy(extra + sizeof(struct sockaddr) * i, qual,
7182 sizeof(struct iw_quality) * i);
7183 }
7184 dwrq->length = i;
7185
7186 kfree(qual);
7187 return 0;
7188 }
7189
7190 /*------------------------------------------------------------------*/
7191 /*
7192 * Wireless Handler : Initiate Scan
7193 */
airo_set_scan(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)7194 static int airo_set_scan(struct net_device *dev,
7195 struct iw_request_info *info,
7196 struct iw_point *dwrq,
7197 char *extra)
7198 {
7199 struct airo_info *ai = dev->ml_priv;
7200 Cmd cmd;
7201 Resp rsp;
7202 int wake = 0;
7203 APListRid APList_rid_empty;
7204
7205 /* Note : you may have realised that, as this is a SET operation,
7206 * this is privileged and therefore a normal user can't
7207 * perform scanning.
7208 * This is not an error, while the device perform scanning,
7209 * traffic doesn't flow, so it's a perfect DoS...
7210 * Jean II */
7211 if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN;
7212
7213 if (down_interruptible(&ai->sem))
7214 return -ERESTARTSYS;
7215
7216 /* If there's already a scan in progress, don't
7217 * trigger another one. */
7218 if (ai->scan_timeout > 0)
7219 goto out;
7220
7221 /* Clear APList as it affects scan results */
7222 memset(&APList_rid_empty, 0, sizeof(APList_rid_empty));
7223 APList_rid_empty.len = cpu_to_le16(sizeof(APList_rid_empty));
7224 disable_MAC(ai, 2);
7225 writeAPListRid(ai, &APList_rid_empty, 0);
7226 enable_MAC(ai, 0);
7227
7228 /* Initiate a scan command */
7229 ai->scan_timeout = RUN_AT(3*HZ);
7230 memset(&cmd, 0, sizeof(cmd));
7231 cmd.cmd=CMD_LISTBSS;
7232 issuecommand(ai, &cmd, &rsp);
7233 wake = 1;
7234
7235 out:
7236 up(&ai->sem);
7237 if (wake)
7238 wake_up_interruptible(&ai->thr_wait);
7239 return 0;
7240 }
7241
7242 /*------------------------------------------------------------------*/
7243 /*
7244 * Translate scan data returned from the card to a card independent
7245 * format that the Wireless Tools will understand - Jean II
7246 */
airo_translate_scan(struct net_device * dev,struct iw_request_info * info,char * current_ev,char * end_buf,BSSListRid * bss)7247 static inline char *airo_translate_scan(struct net_device *dev,
7248 struct iw_request_info *info,
7249 char *current_ev,
7250 char *end_buf,
7251 BSSListRid *bss)
7252 {
7253 struct airo_info *ai = dev->ml_priv;
7254 struct iw_event iwe; /* Temporary buffer */
7255 __le16 capabilities;
7256 char * current_val; /* For rates */
7257 int i;
7258 char * buf;
7259 u16 dBm;
7260
7261 /* First entry *MUST* be the AP MAC address */
7262 iwe.cmd = SIOCGIWAP;
7263 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
7264 memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN);
7265 current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7266 &iwe, IW_EV_ADDR_LEN);
7267
7268 /* Other entries will be displayed in the order we give them */
7269
7270 /* Add the ESSID */
7271 iwe.u.data.length = bss->ssidLen;
7272 if(iwe.u.data.length > 32)
7273 iwe.u.data.length = 32;
7274 iwe.cmd = SIOCGIWESSID;
7275 iwe.u.data.flags = 1;
7276 current_ev = iwe_stream_add_point(info, current_ev, end_buf,
7277 &iwe, bss->ssid);
7278
7279 /* Add mode */
7280 iwe.cmd = SIOCGIWMODE;
7281 capabilities = bss->cap;
7282 if(capabilities & (CAP_ESS | CAP_IBSS)) {
7283 if(capabilities & CAP_ESS)
7284 iwe.u.mode = IW_MODE_MASTER;
7285 else
7286 iwe.u.mode = IW_MODE_ADHOC;
7287 current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7288 &iwe, IW_EV_UINT_LEN);
7289 }
7290
7291 /* Add frequency */
7292 iwe.cmd = SIOCGIWFREQ;
7293 iwe.u.freq.m = le16_to_cpu(bss->dsChannel);
7294 iwe.u.freq.m = 100000 *
7295 ieee80211_channel_to_frequency(iwe.u.freq.m, NL80211_BAND_2GHZ);
7296 iwe.u.freq.e = 1;
7297 current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7298 &iwe, IW_EV_FREQ_LEN);
7299
7300 dBm = le16_to_cpu(bss->dBm);
7301
7302 /* Add quality statistics */
7303 iwe.cmd = IWEVQUAL;
7304 if (ai->rssi) {
7305 iwe.u.qual.level = 0x100 - dBm;
7306 iwe.u.qual.qual = airo_dbm_to_pct(ai->rssi, dBm);
7307 iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED
7308 | IW_QUAL_LEVEL_UPDATED
7309 | IW_QUAL_DBM;
7310 } else {
7311 iwe.u.qual.level = (dBm + 321) / 2;
7312 iwe.u.qual.qual = 0;
7313 iwe.u.qual.updated = IW_QUAL_QUAL_INVALID
7314 | IW_QUAL_LEVEL_UPDATED
7315 | IW_QUAL_DBM;
7316 }
7317 iwe.u.qual.noise = ai->wstats.qual.noise;
7318 current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7319 &iwe, IW_EV_QUAL_LEN);
7320
7321 /* Add encryption capability */
7322 iwe.cmd = SIOCGIWENCODE;
7323 if(capabilities & CAP_PRIVACY)
7324 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
7325 else
7326 iwe.u.data.flags = IW_ENCODE_DISABLED;
7327 iwe.u.data.length = 0;
7328 current_ev = iwe_stream_add_point(info, current_ev, end_buf,
7329 &iwe, bss->ssid);
7330
7331 /* Rate : stuffing multiple values in a single event require a bit
7332 * more of magic - Jean II */
7333 current_val = current_ev + iwe_stream_lcp_len(info);
7334
7335 iwe.cmd = SIOCGIWRATE;
7336 /* Those two flags are ignored... */
7337 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
7338 /* Max 8 values */
7339 for(i = 0 ; i < 8 ; i++) {
7340 /* NULL terminated */
7341 if(bss->rates[i] == 0)
7342 break;
7343 /* Bit rate given in 500 kb/s units (+ 0x80) */
7344 iwe.u.bitrate.value = ((bss->rates[i] & 0x7f) * 500000);
7345 /* Add new value to event */
7346 current_val = iwe_stream_add_value(info, current_ev,
7347 current_val, end_buf,
7348 &iwe, IW_EV_PARAM_LEN);
7349 }
7350 /* Check if we added any event */
7351 if ((current_val - current_ev) > iwe_stream_lcp_len(info))
7352 current_ev = current_val;
7353
7354 /* Beacon interval */
7355 buf = kmalloc(30, GFP_KERNEL);
7356 if (buf) {
7357 iwe.cmd = IWEVCUSTOM;
7358 sprintf(buf, "bcn_int=%d", bss->beaconInterval);
7359 iwe.u.data.length = strlen(buf);
7360 current_ev = iwe_stream_add_point(info, current_ev, end_buf,
7361 &iwe, buf);
7362 kfree(buf);
7363 }
7364
7365 /* Put WPA/RSN Information Elements into the event stream */
7366 if (test_bit(FLAG_WPA_CAPABLE, &ai->flags)) {
7367 unsigned int num_null_ies = 0;
7368 u16 length = sizeof (bss->extra.iep);
7369 u8 *ie = (void *)&bss->extra.iep;
7370
7371 while ((length >= 2) && (num_null_ies < 2)) {
7372 if (2 + ie[1] > length) {
7373 /* Invalid element, don't continue parsing IE */
7374 break;
7375 }
7376
7377 switch (ie[0]) {
7378 case WLAN_EID_SSID:
7379 /* Two zero-length SSID elements
7380 * mean we're done parsing elements */
7381 if (!ie[1])
7382 num_null_ies++;
7383 break;
7384
7385 case WLAN_EID_VENDOR_SPECIFIC:
7386 if (ie[1] >= 4 &&
7387 ie[2] == 0x00 &&
7388 ie[3] == 0x50 &&
7389 ie[4] == 0xf2 &&
7390 ie[5] == 0x01) {
7391 iwe.cmd = IWEVGENIE;
7392 /* 64 is an arbitrary cut-off */
7393 iwe.u.data.length = min(ie[1] + 2,
7394 64);
7395 current_ev = iwe_stream_add_point(
7396 info, current_ev,
7397 end_buf, &iwe, ie);
7398 }
7399 break;
7400
7401 case WLAN_EID_RSN:
7402 iwe.cmd = IWEVGENIE;
7403 /* 64 is an arbitrary cut-off */
7404 iwe.u.data.length = min(ie[1] + 2, 64);
7405 current_ev = iwe_stream_add_point(
7406 info, current_ev, end_buf,
7407 &iwe, ie);
7408 break;
7409
7410 default:
7411 break;
7412 }
7413
7414 length -= 2 + ie[1];
7415 ie += 2 + ie[1];
7416 }
7417 }
7418 return current_ev;
7419 }
7420
7421 /*------------------------------------------------------------------*/
7422 /*
7423 * Wireless Handler : Read Scan Results
7424 */
airo_get_scan(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)7425 static int airo_get_scan(struct net_device *dev,
7426 struct iw_request_info *info,
7427 struct iw_point *dwrq,
7428 char *extra)
7429 {
7430 struct airo_info *ai = dev->ml_priv;
7431 BSSListElement *net;
7432 int err = 0;
7433 char *current_ev = extra;
7434
7435 /* If a scan is in-progress, return -EAGAIN */
7436 if (ai->scan_timeout > 0)
7437 return -EAGAIN;
7438
7439 if (down_interruptible(&ai->sem))
7440 return -EAGAIN;
7441
7442 list_for_each_entry (net, &ai->network_list, list) {
7443 /* Translate to WE format this entry */
7444 current_ev = airo_translate_scan(dev, info, current_ev,
7445 extra + dwrq->length,
7446 &net->bss);
7447
7448 /* Check if there is space for one more entry */
7449 if((extra + dwrq->length - current_ev) <= IW_EV_ADDR_LEN) {
7450 /* Ask user space to try again with a bigger buffer */
7451 err = -E2BIG;
7452 goto out;
7453 }
7454 }
7455
7456 /* Length of data */
7457 dwrq->length = (current_ev - extra);
7458 dwrq->flags = 0; /* todo */
7459
7460 out:
7461 up(&ai->sem);
7462 return err;
7463 }
7464
7465 /*------------------------------------------------------------------*/
7466 /*
7467 * Commit handler : called after a bunch of SET operations
7468 */
airo_config_commit(struct net_device * dev,struct iw_request_info * info,void * zwrq,char * extra)7469 static int airo_config_commit(struct net_device *dev,
7470 struct iw_request_info *info, /* NULL */
7471 void *zwrq, /* NULL */
7472 char *extra) /* NULL */
7473 {
7474 struct airo_info *local = dev->ml_priv;
7475
7476 if (!test_bit (FLAG_COMMIT, &local->flags))
7477 return 0;
7478
7479 /* Some of the "SET" function may have modified some of the
7480 * parameters. It's now time to commit them in the card */
7481 disable_MAC(local, 1);
7482 if (test_bit (FLAG_RESET, &local->flags)) {
7483 SsidRid SSID_rid;
7484
7485 readSsidRid(local, &SSID_rid);
7486 if (test_bit(FLAG_MPI,&local->flags))
7487 setup_card(local, dev->dev_addr, 1 );
7488 else
7489 reset_airo_card(dev);
7490 disable_MAC(local, 1);
7491 writeSsidRid(local, &SSID_rid, 1);
7492 writeAPListRid(local, &local->APList, 1);
7493 }
7494 if (down_interruptible(&local->sem))
7495 return -ERESTARTSYS;
7496 writeConfigRid(local, 0);
7497 enable_MAC(local, 0);
7498 if (test_bit (FLAG_RESET, &local->flags))
7499 airo_set_promisc(local);
7500 else
7501 up(&local->sem);
7502
7503 return 0;
7504 }
7505
7506 /*------------------------------------------------------------------*/
7507 /*
7508 * Structures to export the Wireless Handlers
7509 */
7510
7511 static const struct iw_priv_args airo_private_args[] = {
7512 /*{ cmd, set_args, get_args, name } */
7513 { AIROIOCTL, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof (aironet_ioctl),
7514 IW_PRIV_TYPE_BYTE | 2047, "airoioctl" },
7515 { AIROIDIFC, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof (aironet_ioctl),
7516 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "airoidifc" },
7517 };
7518
7519 static const iw_handler airo_handler[] =
7520 {
7521 (iw_handler) airo_config_commit, /* SIOCSIWCOMMIT */
7522 (iw_handler) airo_get_name, /* SIOCGIWNAME */
7523 (iw_handler) NULL, /* SIOCSIWNWID */
7524 (iw_handler) NULL, /* SIOCGIWNWID */
7525 (iw_handler) airo_set_freq, /* SIOCSIWFREQ */
7526 (iw_handler) airo_get_freq, /* SIOCGIWFREQ */
7527 (iw_handler) airo_set_mode, /* SIOCSIWMODE */
7528 (iw_handler) airo_get_mode, /* SIOCGIWMODE */
7529 (iw_handler) airo_set_sens, /* SIOCSIWSENS */
7530 (iw_handler) airo_get_sens, /* SIOCGIWSENS */
7531 (iw_handler) NULL, /* SIOCSIWRANGE */
7532 (iw_handler) airo_get_range, /* SIOCGIWRANGE */
7533 (iw_handler) NULL, /* SIOCSIWPRIV */
7534 (iw_handler) NULL, /* SIOCGIWPRIV */
7535 (iw_handler) NULL, /* SIOCSIWSTATS */
7536 (iw_handler) NULL, /* SIOCGIWSTATS */
7537 iw_handler_set_spy, /* SIOCSIWSPY */
7538 iw_handler_get_spy, /* SIOCGIWSPY */
7539 iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
7540 iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
7541 (iw_handler) airo_set_wap, /* SIOCSIWAP */
7542 (iw_handler) airo_get_wap, /* SIOCGIWAP */
7543 (iw_handler) NULL, /* -- hole -- */
7544 (iw_handler) airo_get_aplist, /* SIOCGIWAPLIST */
7545 (iw_handler) airo_set_scan, /* SIOCSIWSCAN */
7546 (iw_handler) airo_get_scan, /* SIOCGIWSCAN */
7547 (iw_handler) airo_set_essid, /* SIOCSIWESSID */
7548 (iw_handler) airo_get_essid, /* SIOCGIWESSID */
7549 (iw_handler) airo_set_nick, /* SIOCSIWNICKN */
7550 (iw_handler) airo_get_nick, /* SIOCGIWNICKN */
7551 (iw_handler) NULL, /* -- hole -- */
7552 (iw_handler) NULL, /* -- hole -- */
7553 (iw_handler) airo_set_rate, /* SIOCSIWRATE */
7554 (iw_handler) airo_get_rate, /* SIOCGIWRATE */
7555 (iw_handler) airo_set_rts, /* SIOCSIWRTS */
7556 (iw_handler) airo_get_rts, /* SIOCGIWRTS */
7557 (iw_handler) airo_set_frag, /* SIOCSIWFRAG */
7558 (iw_handler) airo_get_frag, /* SIOCGIWFRAG */
7559 (iw_handler) airo_set_txpow, /* SIOCSIWTXPOW */
7560 (iw_handler) airo_get_txpow, /* SIOCGIWTXPOW */
7561 (iw_handler) airo_set_retry, /* SIOCSIWRETRY */
7562 (iw_handler) airo_get_retry, /* SIOCGIWRETRY */
7563 (iw_handler) airo_set_encode, /* SIOCSIWENCODE */
7564 (iw_handler) airo_get_encode, /* SIOCGIWENCODE */
7565 (iw_handler) airo_set_power, /* SIOCSIWPOWER */
7566 (iw_handler) airo_get_power, /* SIOCGIWPOWER */
7567 (iw_handler) NULL, /* -- hole -- */
7568 (iw_handler) NULL, /* -- hole -- */
7569 (iw_handler) NULL, /* SIOCSIWGENIE */
7570 (iw_handler) NULL, /* SIOCGIWGENIE */
7571 (iw_handler) airo_set_auth, /* SIOCSIWAUTH */
7572 (iw_handler) airo_get_auth, /* SIOCGIWAUTH */
7573 (iw_handler) airo_set_encodeext, /* SIOCSIWENCODEEXT */
7574 (iw_handler) airo_get_encodeext, /* SIOCGIWENCODEEXT */
7575 (iw_handler) NULL, /* SIOCSIWPMKSA */
7576 };
7577
7578 /* Note : don't describe AIROIDIFC and AIROOLDIDIFC in here.
7579 * We want to force the use of the ioctl code, because those can't be
7580 * won't work the iw_handler code (because they simultaneously read
7581 * and write data and iw_handler can't do that).
7582 * Note that it's perfectly legal to read/write on a single ioctl command,
7583 * you just can't use iwpriv and need to force it via the ioctl handler.
7584 * Jean II */
7585 static const iw_handler airo_private_handler[] =
7586 {
7587 NULL, /* SIOCIWFIRSTPRIV */
7588 };
7589
7590 static const struct iw_handler_def airo_handler_def =
7591 {
7592 .num_standard = ARRAY_SIZE(airo_handler),
7593 .num_private = ARRAY_SIZE(airo_private_handler),
7594 .num_private_args = ARRAY_SIZE(airo_private_args),
7595 .standard = airo_handler,
7596 .private = airo_private_handler,
7597 .private_args = airo_private_args,
7598 .get_wireless_stats = airo_get_wireless_stats,
7599 };
7600
7601 /*
7602 * This defines the configuration part of the Wireless Extensions
7603 * Note : irq and spinlock protection will occur in the subroutines
7604 *
7605 * TODO :
7606 * o Check input value more carefully and fill correct values in range
7607 * o Test and shakeout the bugs (if any)
7608 *
7609 * Jean II
7610 *
7611 * Javier Achirica did a great job of merging code from the unnamed CISCO
7612 * developer that added support for flashing the card.
7613 */
airo_ioctl(struct net_device * dev,struct ifreq * rq,int cmd)7614 static int airo_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
7615 {
7616 int rc = 0;
7617 struct airo_info *ai = dev->ml_priv;
7618
7619 if (ai->power.event)
7620 return 0;
7621
7622 switch (cmd) {
7623 #ifdef CISCO_EXT
7624 case AIROIDIFC:
7625 #ifdef AIROOLDIDIFC
7626 case AIROOLDIDIFC:
7627 #endif
7628 {
7629 int val = AIROMAGIC;
7630 aironet_ioctl com;
7631 if (copy_from_user(&com,rq->ifr_data,sizeof(com)))
7632 rc = -EFAULT;
7633 else if (copy_to_user(com.data,(char *)&val,sizeof(val)))
7634 rc = -EFAULT;
7635 }
7636 break;
7637
7638 case AIROIOCTL:
7639 #ifdef AIROOLDIOCTL
7640 case AIROOLDIOCTL:
7641 #endif
7642 /* Get the command struct and hand it off for evaluation by
7643 * the proper subfunction
7644 */
7645 {
7646 aironet_ioctl com;
7647 if (copy_from_user(&com,rq->ifr_data,sizeof(com))) {
7648 rc = -EFAULT;
7649 break;
7650 }
7651
7652 /* Separate R/W functions bracket legality here
7653 */
7654 if ( com.command == AIRORSWVERSION ) {
7655 if (copy_to_user(com.data, swversion, sizeof(swversion)))
7656 rc = -EFAULT;
7657 else
7658 rc = 0;
7659 }
7660 else if ( com.command <= AIRORRID)
7661 rc = readrids(dev,&com);
7662 else if ( com.command >= AIROPCAP && com.command <= (AIROPLEAPUSR+2) )
7663 rc = writerids(dev,&com);
7664 else if ( com.command >= AIROFLSHRST && com.command <= AIRORESTART )
7665 rc = flashcard(dev,&com);
7666 else
7667 rc = -EINVAL; /* Bad command in ioctl */
7668 }
7669 break;
7670 #endif /* CISCO_EXT */
7671
7672 // All other calls are currently unsupported
7673 default:
7674 rc = -EOPNOTSUPP;
7675 }
7676 return rc;
7677 }
7678
7679 /*
7680 * Get the Wireless stats out of the driver
7681 * Note : irq and spinlock protection will occur in the subroutines
7682 *
7683 * TODO :
7684 * o Check if work in Ad-Hoc mode (otherwise, use SPY, as in wvlan_cs)
7685 *
7686 * Jean
7687 */
airo_read_wireless_stats(struct airo_info * local)7688 static void airo_read_wireless_stats(struct airo_info *local)
7689 {
7690 StatusRid status_rid;
7691 StatsRid stats_rid;
7692 CapabilityRid cap_rid;
7693 __le32 *vals = stats_rid.vals;
7694
7695 /* Get stats out of the card */
7696 clear_bit(JOB_WSTATS, &local->jobs);
7697 if (local->power.event) {
7698 up(&local->sem);
7699 return;
7700 }
7701 readCapabilityRid(local, &cap_rid, 0);
7702 readStatusRid(local, &status_rid, 0);
7703 readStatsRid(local, &stats_rid, RID_STATS, 0);
7704 up(&local->sem);
7705
7706 /* The status */
7707 local->wstats.status = le16_to_cpu(status_rid.mode);
7708
7709 /* Signal quality and co */
7710 if (local->rssi) {
7711 local->wstats.qual.level =
7712 airo_rssi_to_dbm(local->rssi,
7713 le16_to_cpu(status_rid.sigQuality));
7714 /* normalizedSignalStrength appears to be a percentage */
7715 local->wstats.qual.qual =
7716 le16_to_cpu(status_rid.normalizedSignalStrength);
7717 } else {
7718 local->wstats.qual.level =
7719 (le16_to_cpu(status_rid.normalizedSignalStrength) + 321) / 2;
7720 local->wstats.qual.qual = airo_get_quality(&status_rid, &cap_rid);
7721 }
7722 if (le16_to_cpu(status_rid.len) >= 124) {
7723 local->wstats.qual.noise = 0x100 - status_rid.noisedBm;
7724 local->wstats.qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
7725 } else {
7726 local->wstats.qual.noise = 0;
7727 local->wstats.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | IW_QUAL_NOISE_INVALID | IW_QUAL_DBM;
7728 }
7729
7730 /* Packets discarded in the wireless adapter due to wireless
7731 * specific problems */
7732 local->wstats.discard.nwid = le32_to_cpu(vals[56]) +
7733 le32_to_cpu(vals[57]) +
7734 le32_to_cpu(vals[58]); /* SSID Mismatch */
7735 local->wstats.discard.code = le32_to_cpu(vals[6]);/* RxWepErr */
7736 local->wstats.discard.fragment = le32_to_cpu(vals[30]);
7737 local->wstats.discard.retries = le32_to_cpu(vals[10]);
7738 local->wstats.discard.misc = le32_to_cpu(vals[1]) +
7739 le32_to_cpu(vals[32]);
7740 local->wstats.miss.beacon = le32_to_cpu(vals[34]);
7741 }
7742
airo_get_wireless_stats(struct net_device * dev)7743 static struct iw_statistics *airo_get_wireless_stats(struct net_device *dev)
7744 {
7745 struct airo_info *local = dev->ml_priv;
7746
7747 if (!test_bit(JOB_WSTATS, &local->jobs)) {
7748 /* Get stats out of the card if available */
7749 if (down_trylock(&local->sem) != 0) {
7750 set_bit(JOB_WSTATS, &local->jobs);
7751 wake_up_interruptible(&local->thr_wait);
7752 } else
7753 airo_read_wireless_stats(local);
7754 }
7755
7756 return &local->wstats;
7757 }
7758
7759 #ifdef CISCO_EXT
7760 /*
7761 * This just translates from driver IOCTL codes to the command codes to
7762 * feed to the radio's host interface. Things can be added/deleted
7763 * as needed. This represents the READ side of control I/O to
7764 * the card
7765 */
readrids(struct net_device * dev,aironet_ioctl * comp)7766 static int readrids(struct net_device *dev, aironet_ioctl *comp) {
7767 unsigned short ridcode;
7768 unsigned char *iobuf;
7769 int len;
7770 struct airo_info *ai = dev->ml_priv;
7771
7772 if (test_bit(FLAG_FLASHING, &ai->flags))
7773 return -EIO;
7774
7775 switch(comp->command)
7776 {
7777 case AIROGCAP: ridcode = RID_CAPABILITIES; break;
7778 case AIROGCFG: ridcode = RID_CONFIG;
7779 if (test_bit(FLAG_COMMIT, &ai->flags)) {
7780 disable_MAC (ai, 1);
7781 writeConfigRid (ai, 1);
7782 enable_MAC(ai, 1);
7783 }
7784 break;
7785 case AIROGSLIST: ridcode = RID_SSID; break;
7786 case AIROGVLIST: ridcode = RID_APLIST; break;
7787 case AIROGDRVNAM: ridcode = RID_DRVNAME; break;
7788 case AIROGEHTENC: ridcode = RID_ETHERENCAP; break;
7789 case AIROGWEPKTMP: ridcode = RID_WEP_TEMP;
7790 /* Only super-user can read WEP keys */
7791 if (!capable(CAP_NET_ADMIN))
7792 return -EPERM;
7793 break;
7794 case AIROGWEPKNV: ridcode = RID_WEP_PERM;
7795 /* Only super-user can read WEP keys */
7796 if (!capable(CAP_NET_ADMIN))
7797 return -EPERM;
7798 break;
7799 case AIROGSTAT: ridcode = RID_STATUS; break;
7800 case AIROGSTATSD32: ridcode = RID_STATSDELTA; break;
7801 case AIROGSTATSC32: ridcode = RID_STATS; break;
7802 case AIROGMICSTATS:
7803 if (copy_to_user(comp->data, &ai->micstats,
7804 min((int)comp->len,(int)sizeof(ai->micstats))))
7805 return -EFAULT;
7806 return 0;
7807 case AIRORRID: ridcode = comp->ridnum; break;
7808 default:
7809 return -EINVAL;
7810 }
7811
7812 if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL)
7813 return -ENOMEM;
7814
7815 PC4500_readrid(ai,ridcode,iobuf,RIDSIZE, 1);
7816 /* get the count of bytes in the rid docs say 1st 2 bytes is it.
7817 * then return it to the user
7818 * 9/22/2000 Honor user given length
7819 */
7820 len = comp->len;
7821
7822 if (copy_to_user(comp->data, iobuf, min(len, (int)RIDSIZE))) {
7823 kfree (iobuf);
7824 return -EFAULT;
7825 }
7826 kfree (iobuf);
7827 return 0;
7828 }
7829
7830 /*
7831 * Danger Will Robinson write the rids here
7832 */
7833
writerids(struct net_device * dev,aironet_ioctl * comp)7834 static int writerids(struct net_device *dev, aironet_ioctl *comp) {
7835 struct airo_info *ai = dev->ml_priv;
7836 int ridcode;
7837 int enabled;
7838 int (*writer)(struct airo_info *, u16 rid, const void *, int, int);
7839 unsigned char *iobuf;
7840
7841 /* Only super-user can write RIDs */
7842 if (!capable(CAP_NET_ADMIN))
7843 return -EPERM;
7844
7845 if (test_bit(FLAG_FLASHING, &ai->flags))
7846 return -EIO;
7847
7848 ridcode = 0;
7849 writer = do_writerid;
7850
7851 switch(comp->command)
7852 {
7853 case AIROPSIDS: ridcode = RID_SSID; break;
7854 case AIROPCAP: ridcode = RID_CAPABILITIES; break;
7855 case AIROPAPLIST: ridcode = RID_APLIST; break;
7856 case AIROPCFG: ai->config.len = 0;
7857 clear_bit(FLAG_COMMIT, &ai->flags);
7858 ridcode = RID_CONFIG; break;
7859 case AIROPWEPKEYNV: ridcode = RID_WEP_PERM; break;
7860 case AIROPLEAPUSR: ridcode = RID_LEAPUSERNAME; break;
7861 case AIROPLEAPPWD: ridcode = RID_LEAPPASSWORD; break;
7862 case AIROPWEPKEY: ridcode = RID_WEP_TEMP; writer = PC4500_writerid;
7863 break;
7864 case AIROPLEAPUSR+1: ridcode = 0xFF2A; break;
7865 case AIROPLEAPUSR+2: ridcode = 0xFF2B; break;
7866
7867 /* this is not really a rid but a command given to the card
7868 * same with MAC off
7869 */
7870 case AIROPMACON:
7871 if (enable_MAC(ai, 1) != 0)
7872 return -EIO;
7873 return 0;
7874
7875 /*
7876 * Evidently this code in the airo driver does not get a symbol
7877 * as disable_MAC. it's probably so short the compiler does not gen one.
7878 */
7879 case AIROPMACOFF:
7880 disable_MAC(ai, 1);
7881 return 0;
7882
7883 /* This command merely clears the counts does not actually store any data
7884 * only reads rid. But as it changes the cards state, I put it in the
7885 * writerid routines.
7886 */
7887 case AIROPSTCLR:
7888 if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL)
7889 return -ENOMEM;
7890
7891 PC4500_readrid(ai,RID_STATSDELTACLEAR,iobuf,RIDSIZE, 1);
7892
7893 enabled = ai->micstats.enabled;
7894 memset(&ai->micstats,0,sizeof(ai->micstats));
7895 ai->micstats.enabled = enabled;
7896
7897 if (copy_to_user(comp->data, iobuf,
7898 min((int)comp->len, (int)RIDSIZE))) {
7899 kfree (iobuf);
7900 return -EFAULT;
7901 }
7902 kfree (iobuf);
7903 return 0;
7904
7905 default:
7906 return -EOPNOTSUPP; /* Blarg! */
7907 }
7908 if(comp->len > RIDSIZE)
7909 return -EINVAL;
7910
7911 if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL)
7912 return -ENOMEM;
7913
7914 if (copy_from_user(iobuf,comp->data,comp->len)) {
7915 kfree (iobuf);
7916 return -EFAULT;
7917 }
7918
7919 if (comp->command == AIROPCFG) {
7920 ConfigRid *cfg = (ConfigRid *)iobuf;
7921
7922 if (test_bit(FLAG_MIC_CAPABLE, &ai->flags))
7923 cfg->opmode |= MODE_MIC;
7924
7925 if ((cfg->opmode & MODE_CFG_MASK) == MODE_STA_IBSS)
7926 set_bit (FLAG_ADHOC, &ai->flags);
7927 else
7928 clear_bit (FLAG_ADHOC, &ai->flags);
7929 }
7930
7931 if((*writer)(ai, ridcode, iobuf,comp->len,1)) {
7932 kfree (iobuf);
7933 return -EIO;
7934 }
7935 kfree (iobuf);
7936 return 0;
7937 }
7938
7939 /*****************************************************************************
7940 * Ancillary flash / mod functions much black magic lurkes here *
7941 *****************************************************************************
7942 */
7943
7944 /*
7945 * Flash command switch table
7946 */
7947
flashcard(struct net_device * dev,aironet_ioctl * comp)7948 static int flashcard(struct net_device *dev, aironet_ioctl *comp) {
7949 int z;
7950
7951 /* Only super-user can modify flash */
7952 if (!capable(CAP_NET_ADMIN))
7953 return -EPERM;
7954
7955 switch(comp->command)
7956 {
7957 case AIROFLSHRST:
7958 return cmdreset((struct airo_info *)dev->ml_priv);
7959
7960 case AIROFLSHSTFL:
7961 if (!AIRO_FLASH(dev) &&
7962 (AIRO_FLASH(dev) = kmalloc(FLASHSIZE, GFP_KERNEL)) == NULL)
7963 return -ENOMEM;
7964 return setflashmode((struct airo_info *)dev->ml_priv);
7965
7966 case AIROFLSHGCHR: /* Get char from aux */
7967 if(comp->len != sizeof(int))
7968 return -EINVAL;
7969 if (copy_from_user(&z,comp->data,comp->len))
7970 return -EFAULT;
7971 return flashgchar((struct airo_info *)dev->ml_priv, z, 8000);
7972
7973 case AIROFLSHPCHR: /* Send char to card. */
7974 if(comp->len != sizeof(int))
7975 return -EINVAL;
7976 if (copy_from_user(&z,comp->data,comp->len))
7977 return -EFAULT;
7978 return flashpchar((struct airo_info *)dev->ml_priv, z, 8000);
7979
7980 case AIROFLPUTBUF: /* Send 32k to card */
7981 if (!AIRO_FLASH(dev))
7982 return -ENOMEM;
7983 if(comp->len > FLASHSIZE)
7984 return -EINVAL;
7985 if (copy_from_user(AIRO_FLASH(dev), comp->data, comp->len))
7986 return -EFAULT;
7987
7988 flashputbuf((struct airo_info *)dev->ml_priv);
7989 return 0;
7990
7991 case AIRORESTART:
7992 if (flashrestart((struct airo_info *)dev->ml_priv, dev))
7993 return -EIO;
7994 return 0;
7995 }
7996 return -EINVAL;
7997 }
7998
7999 #define FLASH_COMMAND 0x7e7e
8000
8001 /*
8002 * STEP 1)
8003 * Disable MAC and do soft reset on
8004 * card.
8005 */
8006
cmdreset(struct airo_info * ai)8007 static int cmdreset(struct airo_info *ai) {
8008 disable_MAC(ai, 1);
8009
8010 if(!waitbusy (ai)){
8011 airo_print_info(ai->dev->name, "Waitbusy hang before RESET");
8012 return -EBUSY;
8013 }
8014
8015 OUT4500(ai,COMMAND,CMD_SOFTRESET);
8016
8017 ssleep(1); /* WAS 600 12/7/00 */
8018
8019 if(!waitbusy (ai)){
8020 airo_print_info(ai->dev->name, "Waitbusy hang AFTER RESET");
8021 return -EBUSY;
8022 }
8023 return 0;
8024 }
8025
8026 /* STEP 2)
8027 * Put the card in legendary flash
8028 * mode
8029 */
8030
setflashmode(struct airo_info * ai)8031 static int setflashmode (struct airo_info *ai) {
8032 set_bit (FLAG_FLASHING, &ai->flags);
8033
8034 OUT4500(ai, SWS0, FLASH_COMMAND);
8035 OUT4500(ai, SWS1, FLASH_COMMAND);
8036 if (probe) {
8037 OUT4500(ai, SWS0, FLASH_COMMAND);
8038 OUT4500(ai, COMMAND,0x10);
8039 } else {
8040 OUT4500(ai, SWS2, FLASH_COMMAND);
8041 OUT4500(ai, SWS3, FLASH_COMMAND);
8042 OUT4500(ai, COMMAND,0);
8043 }
8044 msleep(500); /* 500ms delay */
8045
8046 if(!waitbusy(ai)) {
8047 clear_bit (FLAG_FLASHING, &ai->flags);
8048 airo_print_info(ai->dev->name, "Waitbusy hang after setflash mode");
8049 return -EIO;
8050 }
8051 return 0;
8052 }
8053
8054 /* Put character to SWS0 wait for dwelltime
8055 * x 50us for echo .
8056 */
8057
flashpchar(struct airo_info * ai,int byte,int dwelltime)8058 static int flashpchar(struct airo_info *ai,int byte,int dwelltime) {
8059 int echo;
8060 int waittime;
8061
8062 byte |= 0x8000;
8063
8064 if(dwelltime == 0 )
8065 dwelltime = 200;
8066
8067 waittime=dwelltime;
8068
8069 /* Wait for busy bit d15 to go false indicating buffer empty */
8070 while ((IN4500 (ai, SWS0) & 0x8000) && waittime > 0) {
8071 udelay (50);
8072 waittime -= 50;
8073 }
8074
8075 /* timeout for busy clear wait */
8076 if(waittime <= 0 ){
8077 airo_print_info(ai->dev->name, "flash putchar busywait timeout!");
8078 return -EBUSY;
8079 }
8080
8081 /* Port is clear now write byte and wait for it to echo back */
8082 do {
8083 OUT4500(ai,SWS0,byte);
8084 udelay(50);
8085 dwelltime -= 50;
8086 echo = IN4500(ai,SWS1);
8087 } while (dwelltime >= 0 && echo != byte);
8088
8089 OUT4500(ai,SWS1,0);
8090
8091 return (echo == byte) ? 0 : -EIO;
8092 }
8093
8094 /*
8095 * Get a character from the card matching matchbyte
8096 * Step 3)
8097 */
flashgchar(struct airo_info * ai,int matchbyte,int dwelltime)8098 static int flashgchar(struct airo_info *ai,int matchbyte,int dwelltime){
8099 int rchar;
8100 unsigned char rbyte=0;
8101
8102 do {
8103 rchar = IN4500(ai,SWS1);
8104
8105 if(dwelltime && !(0x8000 & rchar)){
8106 dwelltime -= 10;
8107 mdelay(10);
8108 continue;
8109 }
8110 rbyte = 0xff & rchar;
8111
8112 if( (rbyte == matchbyte) && (0x8000 & rchar) ){
8113 OUT4500(ai,SWS1,0);
8114 return 0;
8115 }
8116 if( rbyte == 0x81 || rbyte == 0x82 || rbyte == 0x83 || rbyte == 0x1a || 0xffff == rchar)
8117 break;
8118 OUT4500(ai,SWS1,0);
8119
8120 }while(dwelltime > 0);
8121 return -EIO;
8122 }
8123
8124 /*
8125 * Transfer 32k of firmware data from user buffer to our buffer and
8126 * send to the card
8127 */
8128
flashputbuf(struct airo_info * ai)8129 static int flashputbuf(struct airo_info *ai){
8130 int nwords;
8131
8132 /* Write stuff */
8133 if (test_bit(FLAG_MPI,&ai->flags))
8134 memcpy_toio(ai->pciaux + 0x8000, ai->flash, FLASHSIZE);
8135 else {
8136 OUT4500(ai,AUXPAGE,0x100);
8137 OUT4500(ai,AUXOFF,0);
8138
8139 for(nwords=0;nwords != FLASHSIZE / 2;nwords++){
8140 OUT4500(ai,AUXDATA,ai->flash[nwords] & 0xffff);
8141 }
8142 }
8143 OUT4500(ai,SWS0,0x8000);
8144
8145 return 0;
8146 }
8147
8148 /*
8149 *
8150 */
flashrestart(struct airo_info * ai,struct net_device * dev)8151 static int flashrestart(struct airo_info *ai,struct net_device *dev){
8152 int i,status;
8153
8154 ssleep(1); /* Added 12/7/00 */
8155 clear_bit (FLAG_FLASHING, &ai->flags);
8156 if (test_bit(FLAG_MPI, &ai->flags)) {
8157 status = mpi_init_descriptors(ai);
8158 if (status != SUCCESS)
8159 return status;
8160 }
8161 status = setup_card(ai, dev->dev_addr, 1);
8162
8163 if (!test_bit(FLAG_MPI,&ai->flags))
8164 for( i = 0; i < MAX_FIDS; i++ ) {
8165 ai->fids[i] = transmit_allocate
8166 ( ai, AIRO_DEF_MTU, i >= MAX_FIDS / 2 );
8167 }
8168
8169 ssleep(1); /* Added 12/7/00 */
8170 return status;
8171 }
8172 #endif /* CISCO_EXT */
8173
8174 /*
8175 This program is free software; you can redistribute it and/or
8176 modify it under the terms of the GNU General Public License
8177 as published by the Free Software Foundation; either version 2
8178 of the License, or (at your option) any later version.
8179
8180 This program is distributed in the hope that it will be useful,
8181 but WITHOUT ANY WARRANTY; without even the implied warranty of
8182 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
8183 GNU General Public License for more details.
8184
8185 In addition:
8186
8187 Redistribution and use in source and binary forms, with or without
8188 modification, are permitted provided that the following conditions
8189 are met:
8190
8191 1. Redistributions of source code must retain the above copyright
8192 notice, this list of conditions and the following disclaimer.
8193 2. Redistributions in binary form must reproduce the above copyright
8194 notice, this list of conditions and the following disclaimer in the
8195 documentation and/or other materials provided with the distribution.
8196 3. The name of the author may not be used to endorse or promote
8197 products derived from this software without specific prior written
8198 permission.
8199
8200 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
8201 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
8202 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
8203 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
8204 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
8205 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
8206 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
8207 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
8208 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
8209 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
8210 POSSIBILITY OF SUCH DAMAGE.
8211 */
8212
8213 module_init(airo_init_module);
8214 module_exit(airo_cleanup_module);
8215
