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 <crypto/aes.h>
53 #include <crypto/skcipher.h>
54
55 #include <net/cfg80211.h>
56 #include <net/iw_handler.h>
57
58 #include "airo.h"
59
60 #define DRV_NAME "airo"
61
62 #ifdef CONFIG_PCI
63 static const struct pci_device_id card_ids[] = {
64 { 0x14b9, 1, PCI_ANY_ID, PCI_ANY_ID, },
65 { 0x14b9, 0x4500, PCI_ANY_ID, PCI_ANY_ID },
66 { 0x14b9, 0x4800, PCI_ANY_ID, PCI_ANY_ID, },
67 { 0x14b9, 0x0340, PCI_ANY_ID, PCI_ANY_ID, },
68 { 0x14b9, 0x0350, PCI_ANY_ID, PCI_ANY_ID, },
69 { 0x14b9, 0x5000, PCI_ANY_ID, PCI_ANY_ID, },
70 { 0x14b9, 0xa504, PCI_ANY_ID, PCI_ANY_ID, },
71 { 0, }
72 };
73 MODULE_DEVICE_TABLE(pci, card_ids);
74
75 static int airo_pci_probe(struct pci_dev *, const struct pci_device_id *);
76 static void airo_pci_remove(struct pci_dev *);
77 static int __maybe_unused airo_pci_suspend(struct device *dev);
78 static int __maybe_unused airo_pci_resume(struct device *dev);
79
80 static SIMPLE_DEV_PM_OPS(airo_pci_pm_ops,
81 airo_pci_suspend,
82 airo_pci_resume);
83
84 static struct pci_driver airo_driver = {
85 .name = DRV_NAME,
86 .id_table = card_ids,
87 .probe = airo_pci_probe,
88 .remove = airo_pci_remove,
89 .driver.pm = &airo_pci_pm_ops,
90 };
91 #endif /* CONFIG_PCI */
92
93 /* Include Wireless Extension definition and check version - Jean II */
94 #include <linux/wireless.h>
95 #define WIRELESS_SPY /* enable iwspy support */
96
97 #define CISCO_EXT /* enable Cisco extensions */
98 #ifdef CISCO_EXT
99 #include <linux/delay.h>
100 #endif
101
102 /* Hack to do some power saving */
103 #define POWER_ON_DOWN
104
105 /* As you can see this list is HUGH!
106 I really don't know what a lot of these counts are about, but they
107 are all here for completeness. If the IGNLABEL macro is put in
108 infront of the label, that statistic will not be included in the list
109 of statistics in the /proc filesystem */
110
111 #define IGNLABEL(comment) NULL
112 static const char *statsLabels[] = {
113 "RxOverrun",
114 IGNLABEL("RxPlcpCrcErr"),
115 IGNLABEL("RxPlcpFormatErr"),
116 IGNLABEL("RxPlcpLengthErr"),
117 "RxMacCrcErr",
118 "RxMacCrcOk",
119 "RxWepErr",
120 "RxWepOk",
121 "RetryLong",
122 "RetryShort",
123 "MaxRetries",
124 "NoAck",
125 "NoCts",
126 "RxAck",
127 "RxCts",
128 "TxAck",
129 "TxRts",
130 "TxCts",
131 "TxMc",
132 "TxBc",
133 "TxUcFrags",
134 "TxUcPackets",
135 "TxBeacon",
136 "RxBeacon",
137 "TxSinColl",
138 "TxMulColl",
139 "DefersNo",
140 "DefersProt",
141 "DefersEngy",
142 "DupFram",
143 "RxFragDisc",
144 "TxAged",
145 "RxAged",
146 "LostSync-MaxRetry",
147 "LostSync-MissedBeacons",
148 "LostSync-ArlExceeded",
149 "LostSync-Deauth",
150 "LostSync-Disassoced",
151 "LostSync-TsfTiming",
152 "HostTxMc",
153 "HostTxBc",
154 "HostTxUc",
155 "HostTxFail",
156 "HostRxMc",
157 "HostRxBc",
158 "HostRxUc",
159 "HostRxDiscard",
160 IGNLABEL("HmacTxMc"),
161 IGNLABEL("HmacTxBc"),
162 IGNLABEL("HmacTxUc"),
163 IGNLABEL("HmacTxFail"),
164 IGNLABEL("HmacRxMc"),
165 IGNLABEL("HmacRxBc"),
166 IGNLABEL("HmacRxUc"),
167 IGNLABEL("HmacRxDiscard"),
168 IGNLABEL("HmacRxAccepted"),
169 "SsidMismatch",
170 "ApMismatch",
171 "RatesMismatch",
172 "AuthReject",
173 "AuthTimeout",
174 "AssocReject",
175 "AssocTimeout",
176 IGNLABEL("ReasonOutsideTable"),
177 IGNLABEL("ReasonStatus1"),
178 IGNLABEL("ReasonStatus2"),
179 IGNLABEL("ReasonStatus3"),
180 IGNLABEL("ReasonStatus4"),
181 IGNLABEL("ReasonStatus5"),
182 IGNLABEL("ReasonStatus6"),
183 IGNLABEL("ReasonStatus7"),
184 IGNLABEL("ReasonStatus8"),
185 IGNLABEL("ReasonStatus9"),
186 IGNLABEL("ReasonStatus10"),
187 IGNLABEL("ReasonStatus11"),
188 IGNLABEL("ReasonStatus12"),
189 IGNLABEL("ReasonStatus13"),
190 IGNLABEL("ReasonStatus14"),
191 IGNLABEL("ReasonStatus15"),
192 IGNLABEL("ReasonStatus16"),
193 IGNLABEL("ReasonStatus17"),
194 IGNLABEL("ReasonStatus18"),
195 IGNLABEL("ReasonStatus19"),
196 "RxMan",
197 "TxMan",
198 "RxRefresh",
199 "TxRefresh",
200 "RxPoll",
201 "TxPoll",
202 "HostRetries",
203 "LostSync-HostReq",
204 "HostTxBytes",
205 "HostRxBytes",
206 "ElapsedUsec",
207 "ElapsedSec",
208 "LostSyncBetterAP",
209 "PrivacyMismatch",
210 "Jammed",
211 "DiscRxNotWepped",
212 "PhyEleMismatch",
213 (char*)-1 };
214 #ifndef RUN_AT
215 #define RUN_AT(x) (jiffies+(x))
216 #endif
217
218
219 /* These variables are for insmod, since it seems that the rates
220 can only be set in setup_card. Rates should be a comma separated
221 (no spaces) list of rates (up to 8). */
222
223 static int rates[8];
224 static char *ssids[3];
225
226 static int io[4];
227 static int irq[4];
228
229 static
230 int maxencrypt /* = 0 */; /* The highest rate that the card can encrypt at.
231 0 means no limit. For old cards this was 4 */
232
233 static int auto_wep /* = 0 */; /* If set, it tries to figure out the wep mode */
234 static int aux_bap /* = 0 */; /* Checks to see if the aux ports are needed to read
235 the bap, needed on some older cards and buses. */
236 static int adhoc;
237
238 static int probe = 1;
239
240 static kuid_t proc_kuid;
241 static int proc_uid /* = 0 */;
242
243 static kgid_t proc_kgid;
244 static int proc_gid /* = 0 */;
245
246 static int airo_perm = 0555;
247
248 static int proc_perm = 0644;
249
250 MODULE_AUTHOR("Benjamin Reed");
251 MODULE_DESCRIPTION("Support for Cisco/Aironet 802.11 wireless ethernet cards. "
252 "Direct support for ISA/PCI/MPI cards and support for PCMCIA when used with airo_cs.");
253 MODULE_LICENSE("Dual BSD/GPL");
254 module_param_hw_array(io, int, ioport, NULL, 0);
255 module_param_hw_array(irq, int, irq, NULL, 0);
256 module_param_array(rates, int, NULL, 0);
257 module_param_array(ssids, charp, NULL, 0);
258 module_param(auto_wep, int, 0);
259 MODULE_PARM_DESC(auto_wep,
260 "If non-zero, the driver will keep looping through the authentication options until an association is made. "
261 "The value of auto_wep is number of the wep keys to check. "
262 "A value of 2 will try using the key at index 0 and index 1.");
263 module_param(aux_bap, int, 0);
264 MODULE_PARM_DESC(aux_bap,
265 "If non-zero, the driver will switch into a mode that seems to work better for older cards with some older buses. "
266 "Before switching it checks that the switch is needed.");
267 module_param(maxencrypt, int, 0);
268 MODULE_PARM_DESC(maxencrypt,
269 "The maximum speed that the card can do encryption. "
270 "Units are in 512kbs. "
271 "Zero (default) means there is no limit. "
272 "Older cards used to be limited to 2mbs (4).");
273 module_param(adhoc, int, 0);
274 MODULE_PARM_DESC(adhoc, "If non-zero, the card will start in adhoc mode.");
275 module_param(probe, int, 0);
276 MODULE_PARM_DESC(probe, "If zero, the driver won't start the card.");
277
278 module_param(proc_uid, int, 0);
279 MODULE_PARM_DESC(proc_uid, "The uid that the /proc files will belong to.");
280 module_param(proc_gid, int, 0);
281 MODULE_PARM_DESC(proc_gid, "The gid that the /proc files will belong to.");
282 module_param(airo_perm, int, 0);
283 MODULE_PARM_DESC(airo_perm, "The permission bits of /proc/[driver/]aironet.");
284 module_param(proc_perm, int, 0);
285 MODULE_PARM_DESC(proc_perm, "The permission bits of the files in /proc");
286
287 /* This is a kind of sloppy hack to get this information to OUT4500 and
288 IN4500. I would be extremely interested in the situation where this
289 doesn't work though!!! */
290 static int do8bitIO /* = 0 */;
291
292 /* Return codes */
293 #define SUCCESS 0
294 #define ERROR -1
295 #define NO_PACKET -2
296
297 /* Commands */
298 #define NOP2 0x0000
299 #define MAC_ENABLE 0x0001
300 #define MAC_DISABLE 0x0002
301 #define CMD_LOSE_SYNC 0x0003 /* Not sure what this does... */
302 #define CMD_SOFTRESET 0x0004
303 #define HOSTSLEEP 0x0005
304 #define CMD_MAGIC_PKT 0x0006
305 #define CMD_SETWAKEMASK 0x0007
306 #define CMD_READCFG 0x0008
307 #define CMD_SETMODE 0x0009
308 #define CMD_ALLOCATETX 0x000a
309 #define CMD_TRANSMIT 0x000b
310 #define CMD_DEALLOCATETX 0x000c
311 #define NOP 0x0010
312 #define CMD_WORKAROUND 0x0011
313 #define CMD_ALLOCATEAUX 0x0020
314 #define CMD_ACCESS 0x0021
315 #define CMD_PCIBAP 0x0022
316 #define CMD_PCIAUX 0x0023
317 #define CMD_ALLOCBUF 0x0028
318 #define CMD_GETTLV 0x0029
319 #define CMD_PUTTLV 0x002a
320 #define CMD_DELTLV 0x002b
321 #define CMD_FINDNEXTTLV 0x002c
322 #define CMD_PSPNODES 0x0030
323 #define CMD_SETCW 0x0031
324 #define CMD_SETPCF 0x0032
325 #define CMD_SETPHYREG 0x003e
326 #define CMD_TXTEST 0x003f
327 #define MAC_ENABLETX 0x0101
328 #define CMD_LISTBSS 0x0103
329 #define CMD_SAVECFG 0x0108
330 #define CMD_ENABLEAUX 0x0111
331 #define CMD_WRITERID 0x0121
332 #define CMD_USEPSPNODES 0x0130
333 #define MAC_ENABLERX 0x0201
334
335 /* Command errors */
336 #define ERROR_QUALIF 0x00
337 #define ERROR_ILLCMD 0x01
338 #define ERROR_ILLFMT 0x02
339 #define ERROR_INVFID 0x03
340 #define ERROR_INVRID 0x04
341 #define ERROR_LARGE 0x05
342 #define ERROR_NDISABL 0x06
343 #define ERROR_ALLOCBSY 0x07
344 #define ERROR_NORD 0x0B
345 #define ERROR_NOWR 0x0C
346 #define ERROR_INVFIDTX 0x0D
347 #define ERROR_TESTACT 0x0E
348 #define ERROR_TAGNFND 0x12
349 #define ERROR_DECODE 0x20
350 #define ERROR_DESCUNAV 0x21
351 #define ERROR_BADLEN 0x22
352 #define ERROR_MODE 0x80
353 #define ERROR_HOP 0x81
354 #define ERROR_BINTER 0x82
355 #define ERROR_RXMODE 0x83
356 #define ERROR_MACADDR 0x84
357 #define ERROR_RATES 0x85
358 #define ERROR_ORDER 0x86
359 #define ERROR_SCAN 0x87
360 #define ERROR_AUTH 0x88
361 #define ERROR_PSMODE 0x89
362 #define ERROR_RTYPE 0x8A
363 #define ERROR_DIVER 0x8B
364 #define ERROR_SSID 0x8C
365 #define ERROR_APLIST 0x8D
366 #define ERROR_AUTOWAKE 0x8E
367 #define ERROR_LEAP 0x8F
368
369 /* Registers */
370 #define COMMAND 0x00
371 #define PARAM0 0x02
372 #define PARAM1 0x04
373 #define PARAM2 0x06
374 #define STATUS 0x08
375 #define RESP0 0x0a
376 #define RESP1 0x0c
377 #define RESP2 0x0e
378 #define LINKSTAT 0x10
379 #define SELECT0 0x18
380 #define OFFSET0 0x1c
381 #define RXFID 0x20
382 #define TXALLOCFID 0x22
383 #define TXCOMPLFID 0x24
384 #define DATA0 0x36
385 #define EVSTAT 0x30
386 #define EVINTEN 0x32
387 #define EVACK 0x34
388 #define SWS0 0x28
389 #define SWS1 0x2a
390 #define SWS2 0x2c
391 #define SWS3 0x2e
392 #define AUXPAGE 0x3A
393 #define AUXOFF 0x3C
394 #define AUXDATA 0x3E
395
396 #define FID_TX 1
397 #define FID_RX 2
398 /* Offset into aux memory for descriptors */
399 #define AUX_OFFSET 0x800
400 /* Size of allocated packets */
401 #define PKTSIZE 1840
402 #define RIDSIZE 2048
403 /* Size of the transmit queue */
404 #define MAXTXQ 64
405
406 /* BAP selectors */
407 #define BAP0 0 /* Used for receiving packets */
408 #define BAP1 2 /* Used for xmiting packets and working with RIDS */
409
410 /* Flags */
411 #define COMMAND_BUSY 0x8000
412
413 #define BAP_BUSY 0x8000
414 #define BAP_ERR 0x4000
415 #define BAP_DONE 0x2000
416
417 #define PROMISC 0xffff
418 #define NOPROMISC 0x0000
419
420 #define EV_CMD 0x10
421 #define EV_CLEARCOMMANDBUSY 0x4000
422 #define EV_RX 0x01
423 #define EV_TX 0x02
424 #define EV_TXEXC 0x04
425 #define EV_ALLOC 0x08
426 #define EV_LINK 0x80
427 #define EV_AWAKE 0x100
428 #define EV_TXCPY 0x400
429 #define EV_UNKNOWN 0x800
430 #define EV_MIC 0x1000 /* Message Integrity Check Interrupt */
431 #define EV_AWAKEN 0x2000
432 #define STATUS_INTS (EV_AWAKE|EV_LINK|EV_TXEXC|EV_TX|EV_TXCPY|EV_RX|EV_MIC)
433
434 #ifdef CHECK_UNKNOWN_INTS
435 #define IGNORE_INTS (EV_CMD | EV_UNKNOWN)
436 #else
437 #define IGNORE_INTS (~STATUS_INTS)
438 #endif
439
440 /* RID TYPES */
441 #define RID_RW 0x20
442
443 /* The RIDs */
444 #define RID_CAPABILITIES 0xFF00
445 #define RID_APINFO 0xFF01
446 #define RID_RADIOINFO 0xFF02
447 #define RID_UNKNOWN3 0xFF03
448 #define RID_RSSI 0xFF04
449 #define RID_CONFIG 0xFF10
450 #define RID_SSID 0xFF11
451 #define RID_APLIST 0xFF12
452 #define RID_DRVNAME 0xFF13
453 #define RID_ETHERENCAP 0xFF14
454 #define RID_WEP_TEMP 0xFF15
455 #define RID_WEP_PERM 0xFF16
456 #define RID_MODULATION 0xFF17
457 #define RID_OPTIONS 0xFF18
458 #define RID_ACTUALCONFIG 0xFF20 /*readonly*/
459 #define RID_FACTORYCONFIG 0xFF21
460 #define RID_UNKNOWN22 0xFF22
461 #define RID_LEAPUSERNAME 0xFF23
462 #define RID_LEAPPASSWORD 0xFF24
463 #define RID_STATUS 0xFF50
464 #define RID_BEACON_HST 0xFF51
465 #define RID_BUSY_HST 0xFF52
466 #define RID_RETRIES_HST 0xFF53
467 #define RID_UNKNOWN54 0xFF54
468 #define RID_UNKNOWN55 0xFF55
469 #define RID_UNKNOWN56 0xFF56
470 #define RID_MIC 0xFF57
471 #define RID_STATS16 0xFF60
472 #define RID_STATS16DELTA 0xFF61
473 #define RID_STATS16DELTACLEAR 0xFF62
474 #define RID_STATS 0xFF68
475 #define RID_STATSDELTA 0xFF69
476 #define RID_STATSDELTACLEAR 0xFF6A
477 #define RID_ECHOTEST_RID 0xFF70
478 #define RID_ECHOTEST_RESULTS 0xFF71
479 #define RID_BSSLISTFIRST 0xFF72
480 #define RID_BSSLISTNEXT 0xFF73
481 #define RID_WPA_BSSLISTFIRST 0xFF74
482 #define RID_WPA_BSSLISTNEXT 0xFF75
483
484 typedef struct {
485 u16 cmd;
486 u16 parm0;
487 u16 parm1;
488 u16 parm2;
489 } Cmd;
490
491 typedef struct {
492 u16 status;
493 u16 rsp0;
494 u16 rsp1;
495 u16 rsp2;
496 } Resp;
497
498 /*
499 * Rids and endian-ness: The Rids will always be in cpu endian, since
500 * this all the patches from the big-endian guys end up doing that.
501 * so all rid access should use the read/writeXXXRid routines.
502 */
503
504 /* This structure came from an email sent to me from an engineer at
505 aironet for inclusion into this driver */
506 typedef struct WepKeyRid WepKeyRid;
507 struct WepKeyRid {
508 __le16 len;
509 __le16 kindex;
510 u8 mac[ETH_ALEN];
511 __le16 klen;
512 u8 key[16];
513 } __packed;
514
515 /* These structures are from the Aironet's PC4500 Developers Manual */
516 typedef struct Ssid Ssid;
517 struct Ssid {
518 __le16 len;
519 u8 ssid[32];
520 } __packed;
521
522 typedef struct SsidRid SsidRid;
523 struct SsidRid {
524 __le16 len;
525 Ssid ssids[3];
526 } __packed;
527
528 typedef struct ModulationRid ModulationRid;
529 struct ModulationRid {
530 __le16 len;
531 __le16 modulation;
532 #define MOD_DEFAULT cpu_to_le16(0)
533 #define MOD_CCK cpu_to_le16(1)
534 #define MOD_MOK cpu_to_le16(2)
535 } __packed;
536
537 typedef struct ConfigRid ConfigRid;
538 struct ConfigRid {
539 __le16 len; /* sizeof(ConfigRid) */
540 __le16 opmode; /* operating mode */
541 #define MODE_STA_IBSS cpu_to_le16(0)
542 #define MODE_STA_ESS cpu_to_le16(1)
543 #define MODE_AP cpu_to_le16(2)
544 #define MODE_AP_RPTR cpu_to_le16(3)
545 #define MODE_CFG_MASK cpu_to_le16(0xff)
546 #define MODE_ETHERNET_HOST cpu_to_le16(0<<8) /* rx payloads converted */
547 #define MODE_LLC_HOST cpu_to_le16(1<<8) /* rx payloads left as is */
548 #define MODE_AIRONET_EXTEND cpu_to_le16(1<<9) /* enable Aironet extenstions */
549 #define MODE_AP_INTERFACE cpu_to_le16(1<<10) /* enable ap interface extensions */
550 #define MODE_ANTENNA_ALIGN cpu_to_le16(1<<11) /* enable antenna alignment */
551 #define MODE_ETHER_LLC cpu_to_le16(1<<12) /* enable ethernet LLC */
552 #define MODE_LEAF_NODE cpu_to_le16(1<<13) /* enable leaf node bridge */
553 #define MODE_CF_POLLABLE cpu_to_le16(1<<14) /* enable CF pollable */
554 #define MODE_MIC cpu_to_le16(1<<15) /* enable MIC */
555 __le16 rmode; /* receive mode */
556 #define RXMODE_BC_MC_ADDR cpu_to_le16(0)
557 #define RXMODE_BC_ADDR cpu_to_le16(1) /* ignore multicasts */
558 #define RXMODE_ADDR cpu_to_le16(2) /* ignore multicast and broadcast */
559 #define RXMODE_RFMON cpu_to_le16(3) /* wireless monitor mode */
560 #define RXMODE_RFMON_ANYBSS cpu_to_le16(4)
561 #define RXMODE_LANMON cpu_to_le16(5) /* lan style monitor -- data packets only */
562 #define RXMODE_MASK cpu_to_le16(255)
563 #define RXMODE_DISABLE_802_3_HEADER cpu_to_le16(1<<8) /* disables 802.3 header on rx */
564 #define RXMODE_FULL_MASK (RXMODE_MASK | RXMODE_DISABLE_802_3_HEADER)
565 #define RXMODE_NORMALIZED_RSSI cpu_to_le16(1<<9) /* return normalized RSSI */
566 __le16 fragThresh;
567 __le16 rtsThres;
568 u8 macAddr[ETH_ALEN];
569 u8 rates[8];
570 __le16 shortRetryLimit;
571 __le16 longRetryLimit;
572 __le16 txLifetime; /* in kusec */
573 __le16 rxLifetime; /* in kusec */
574 __le16 stationary;
575 __le16 ordering;
576 __le16 u16deviceType; /* for overriding device type */
577 __le16 cfpRate;
578 __le16 cfpDuration;
579 __le16 _reserved1[3];
580 /*---------- Scanning/Associating ----------*/
581 __le16 scanMode;
582 #define SCANMODE_ACTIVE cpu_to_le16(0)
583 #define SCANMODE_PASSIVE cpu_to_le16(1)
584 #define SCANMODE_AIROSCAN cpu_to_le16(2)
585 __le16 probeDelay; /* in kusec */
586 __le16 probeEnergyTimeout; /* in kusec */
587 __le16 probeResponseTimeout;
588 __le16 beaconListenTimeout;
589 __le16 joinNetTimeout;
590 __le16 authTimeout;
591 __le16 authType;
592 #define AUTH_OPEN cpu_to_le16(0x1)
593 #define AUTH_ENCRYPT cpu_to_le16(0x101)
594 #define AUTH_SHAREDKEY cpu_to_le16(0x102)
595 #define AUTH_ALLOW_UNENCRYPTED cpu_to_le16(0x200)
596 __le16 associationTimeout;
597 __le16 specifiedApTimeout;
598 __le16 offlineScanInterval;
599 __le16 offlineScanDuration;
600 __le16 linkLossDelay;
601 __le16 maxBeaconLostTime;
602 __le16 refreshInterval;
603 #define DISABLE_REFRESH cpu_to_le16(0xFFFF)
604 __le16 _reserved1a[1];
605 /*---------- Power save operation ----------*/
606 __le16 powerSaveMode;
607 #define POWERSAVE_CAM cpu_to_le16(0)
608 #define POWERSAVE_PSP cpu_to_le16(1)
609 #define POWERSAVE_PSPCAM cpu_to_le16(2)
610 __le16 sleepForDtims;
611 __le16 listenInterval;
612 __le16 fastListenInterval;
613 __le16 listenDecay;
614 __le16 fastListenDelay;
615 __le16 _reserved2[2];
616 /*---------- Ap/Ibss config items ----------*/
617 __le16 beaconPeriod;
618 __le16 atimDuration;
619 __le16 hopPeriod;
620 __le16 channelSet;
621 __le16 channel;
622 __le16 dtimPeriod;
623 __le16 bridgeDistance;
624 __le16 radioID;
625 /*---------- Radio configuration ----------*/
626 __le16 radioType;
627 #define RADIOTYPE_DEFAULT cpu_to_le16(0)
628 #define RADIOTYPE_802_11 cpu_to_le16(1)
629 #define RADIOTYPE_LEGACY cpu_to_le16(2)
630 u8 rxDiversity;
631 u8 txDiversity;
632 __le16 txPower;
633 #define TXPOWER_DEFAULT 0
634 __le16 rssiThreshold;
635 #define RSSI_DEFAULT 0
636 __le16 modulation;
637 #define PREAMBLE_AUTO cpu_to_le16(0)
638 #define PREAMBLE_LONG cpu_to_le16(1)
639 #define PREAMBLE_SHORT cpu_to_le16(2)
640 __le16 preamble;
641 __le16 homeProduct;
642 __le16 radioSpecific;
643 /*---------- Aironet Extensions ----------*/
644 u8 nodeName[16];
645 __le16 arlThreshold;
646 __le16 arlDecay;
647 __le16 arlDelay;
648 __le16 _reserved4[1];
649 /*---------- Aironet Extensions ----------*/
650 u8 magicAction;
651 #define MAGIC_ACTION_STSCHG 1
652 #define MAGIC_ACTION_RESUME 2
653 #define MAGIC_IGNORE_MCAST (1<<8)
654 #define MAGIC_IGNORE_BCAST (1<<9)
655 #define MAGIC_SWITCH_TO_PSP (0<<10)
656 #define MAGIC_STAY_IN_CAM (1<<10)
657 u8 magicControl;
658 __le16 autoWake;
659 } __packed;
660
661 typedef struct StatusRid StatusRid;
662 struct StatusRid {
663 __le16 len;
664 u8 mac[ETH_ALEN];
665 __le16 mode;
666 __le16 errorCode;
667 __le16 sigQuality;
668 __le16 SSIDlen;
669 char SSID[32];
670 char apName[16];
671 u8 bssid[4][ETH_ALEN];
672 __le16 beaconPeriod;
673 __le16 dimPeriod;
674 __le16 atimDuration;
675 __le16 hopPeriod;
676 __le16 channelSet;
677 __le16 channel;
678 __le16 hopsToBackbone;
679 __le16 apTotalLoad;
680 __le16 generatedLoad;
681 __le16 accumulatedArl;
682 __le16 signalQuality;
683 __le16 currentXmitRate;
684 __le16 apDevExtensions;
685 __le16 normalizedSignalStrength;
686 __le16 shortPreamble;
687 u8 apIP[4];
688 u8 noisePercent; /* Noise percent in last second */
689 u8 noisedBm; /* Noise dBm in last second */
690 u8 noiseAvePercent; /* Noise percent in last minute */
691 u8 noiseAvedBm; /* Noise dBm in last minute */
692 u8 noiseMaxPercent; /* Highest noise percent in last minute */
693 u8 noiseMaxdBm; /* Highest noise dbm in last minute */
694 __le16 load;
695 u8 carrier[4];
696 __le16 assocStatus;
697 #define STAT_NOPACKETS 0
698 #define STAT_NOCARRIERSET 10
699 #define STAT_GOTCARRIERSET 11
700 #define STAT_WRONGSSID 20
701 #define STAT_BADCHANNEL 25
702 #define STAT_BADBITRATES 30
703 #define STAT_BADPRIVACY 35
704 #define STAT_APFOUND 40
705 #define STAT_APREJECTED 50
706 #define STAT_AUTHENTICATING 60
707 #define STAT_DEAUTHENTICATED 61
708 #define STAT_AUTHTIMEOUT 62
709 #define STAT_ASSOCIATING 70
710 #define STAT_DEASSOCIATED 71
711 #define STAT_ASSOCTIMEOUT 72
712 #define STAT_NOTAIROAP 73
713 #define STAT_ASSOCIATED 80
714 #define STAT_LEAPING 90
715 #define STAT_LEAPFAILED 91
716 #define STAT_LEAPTIMEDOUT 92
717 #define STAT_LEAPCOMPLETE 93
718 } __packed;
719
720 typedef struct StatsRid StatsRid;
721 struct StatsRid {
722 __le16 len;
723 __le16 spacer;
724 __le32 vals[100];
725 } __packed;
726
727 typedef struct APListRid APListRid;
728 struct APListRid {
729 __le16 len;
730 u8 ap[4][ETH_ALEN];
731 } __packed;
732
733 typedef struct CapabilityRid CapabilityRid;
734 struct CapabilityRid {
735 __le16 len;
736 char oui[3];
737 char zero;
738 __le16 prodNum;
739 char manName[32];
740 char prodName[16];
741 char prodVer[8];
742 char factoryAddr[ETH_ALEN];
743 char aironetAddr[ETH_ALEN];
744 __le16 radioType;
745 __le16 country;
746 char callid[ETH_ALEN];
747 char supportedRates[8];
748 char rxDiversity;
749 char txDiversity;
750 __le16 txPowerLevels[8];
751 __le16 hardVer;
752 __le16 hardCap;
753 __le16 tempRange;
754 __le16 softVer;
755 __le16 softSubVer;
756 __le16 interfaceVer;
757 __le16 softCap;
758 __le16 bootBlockVer;
759 __le16 requiredHard;
760 __le16 extSoftCap;
761 } __packed;
762
763 /* Only present on firmware >= 5.30.17 */
764 typedef struct BSSListRidExtra BSSListRidExtra;
765 struct BSSListRidExtra {
766 __le16 unknown[4];
767 u8 fixed[12]; /* WLAN management frame */
768 u8 iep[624];
769 } __packed;
770
771 typedef struct BSSListRid BSSListRid;
772 struct BSSListRid {
773 __le16 len;
774 __le16 index; /* First is 0 and 0xffff means end of list */
775 #define RADIO_FH 1 /* Frequency hopping radio type */
776 #define RADIO_DS 2 /* Direct sequence radio type */
777 #define RADIO_TMA 4 /* Proprietary radio used in old cards (2500) */
778 __le16 radioType;
779 u8 bssid[ETH_ALEN]; /* Mac address of the BSS */
780 u8 zero;
781 u8 ssidLen;
782 u8 ssid[32];
783 __le16 dBm;
784 #define CAP_ESS cpu_to_le16(1<<0)
785 #define CAP_IBSS cpu_to_le16(1<<1)
786 #define CAP_PRIVACY cpu_to_le16(1<<4)
787 #define CAP_SHORTHDR cpu_to_le16(1<<5)
788 __le16 cap;
789 __le16 beaconInterval;
790 u8 rates[8]; /* Same as rates for config rid */
791 struct { /* For frequency hopping only */
792 __le16 dwell;
793 u8 hopSet;
794 u8 hopPattern;
795 u8 hopIndex;
796 u8 fill;
797 } fh;
798 __le16 dsChannel;
799 __le16 atimWindow;
800
801 /* Only present on firmware >= 5.30.17 */
802 BSSListRidExtra extra;
803 } __packed;
804
805 typedef struct {
806 BSSListRid bss;
807 struct list_head list;
808 } BSSListElement;
809
810 typedef struct tdsRssiEntry tdsRssiEntry;
811 struct tdsRssiEntry {
812 u8 rssipct;
813 u8 rssidBm;
814 } __packed;
815
816 typedef struct tdsRssiRid tdsRssiRid;
817 struct tdsRssiRid {
818 u16 len;
819 tdsRssiEntry x[256];
820 } __packed;
821
822 typedef struct MICRid MICRid;
823 struct MICRid {
824 __le16 len;
825 __le16 state;
826 __le16 multicastValid;
827 u8 multicast[16];
828 __le16 unicastValid;
829 u8 unicast[16];
830 } __packed;
831
832 typedef struct MICBuffer MICBuffer;
833 struct MICBuffer {
834 __be16 typelen;
835
836 union {
837 u8 snap[8];
838 struct {
839 u8 dsap;
840 u8 ssap;
841 u8 control;
842 u8 orgcode[3];
843 u8 fieldtype[2];
844 } llc;
845 } u;
846 __be32 mic;
847 __be32 seq;
848 } __packed;
849
850 typedef struct {
851 u8 da[ETH_ALEN];
852 u8 sa[ETH_ALEN];
853 } etherHead;
854
855 #define TXCTL_TXOK (1<<1) /* report if tx is ok */
856 #define TXCTL_TXEX (1<<2) /* report if tx fails */
857 #define TXCTL_802_3 (0<<3) /* 802.3 packet */
858 #define TXCTL_802_11 (1<<3) /* 802.11 mac packet */
859 #define TXCTL_ETHERNET (0<<4) /* payload has ethertype */
860 #define TXCTL_LLC (1<<4) /* payload is llc */
861 #define TXCTL_RELEASE (0<<5) /* release after completion */
862 #define TXCTL_NORELEASE (1<<5) /* on completion returns to host */
863
864 #define BUSY_FID 0x10000
865
866 #ifdef CISCO_EXT
867 #define AIROMAGIC 0xa55a
868 /* Warning : SIOCDEVPRIVATE may disapear during 2.5.X - Jean II */
869 #ifdef SIOCIWFIRSTPRIV
870 #ifdef SIOCDEVPRIVATE
871 #define AIROOLDIOCTL SIOCDEVPRIVATE
872 #define AIROOLDIDIFC AIROOLDIOCTL + 1
873 #endif /* SIOCDEVPRIVATE */
874 #else /* SIOCIWFIRSTPRIV */
875 #define SIOCIWFIRSTPRIV SIOCDEVPRIVATE
876 #endif /* SIOCIWFIRSTPRIV */
877 /* This may be wrong. When using the new SIOCIWFIRSTPRIV range, we probably
878 * should use only "GET" ioctls (last bit set to 1). "SET" ioctls are root
879 * only and don't return the modified struct ifreq to the application which
880 * is usually a problem. - Jean II */
881 #define AIROIOCTL SIOCIWFIRSTPRIV
882 #define AIROIDIFC AIROIOCTL + 1
883
884 /* Ioctl constants to be used in airo_ioctl.command */
885
886 #define AIROGCAP 0 // Capability rid
887 #define AIROGCFG 1 // USED A LOT
888 #define AIROGSLIST 2 // System ID list
889 #define AIROGVLIST 3 // List of specified AP's
890 #define AIROGDRVNAM 4 // NOTUSED
891 #define AIROGEHTENC 5 // NOTUSED
892 #define AIROGWEPKTMP 6
893 #define AIROGWEPKNV 7
894 #define AIROGSTAT 8
895 #define AIROGSTATSC32 9
896 #define AIROGSTATSD32 10
897 #define AIROGMICRID 11
898 #define AIROGMICSTATS 12
899 #define AIROGFLAGS 13
900 #define AIROGID 14
901 #define AIRORRID 15
902 #define AIRORSWVERSION 17
903
904 /* Leave gap of 40 commands after AIROGSTATSD32 for future */
905
906 #define AIROPCAP AIROGSTATSD32 + 40
907 #define AIROPVLIST AIROPCAP + 1
908 #define AIROPSLIST AIROPVLIST + 1
909 #define AIROPCFG AIROPSLIST + 1
910 #define AIROPSIDS AIROPCFG + 1
911 #define AIROPAPLIST AIROPSIDS + 1
912 #define AIROPMACON AIROPAPLIST + 1 /* Enable mac */
913 #define AIROPMACOFF AIROPMACON + 1 /* Disable mac */
914 #define AIROPSTCLR AIROPMACOFF + 1
915 #define AIROPWEPKEY AIROPSTCLR + 1
916 #define AIROPWEPKEYNV AIROPWEPKEY + 1
917 #define AIROPLEAPPWD AIROPWEPKEYNV + 1
918 #define AIROPLEAPUSR AIROPLEAPPWD + 1
919
920 /* Flash codes */
921
922 #define AIROFLSHRST AIROPWEPKEYNV + 40
923 #define AIROFLSHGCHR AIROFLSHRST + 1
924 #define AIROFLSHSTFL AIROFLSHGCHR + 1
925 #define AIROFLSHPCHR AIROFLSHSTFL + 1
926 #define AIROFLPUTBUF AIROFLSHPCHR + 1
927 #define AIRORESTART AIROFLPUTBUF + 1
928
929 #define FLASHSIZE 32768
930 #define AUXMEMSIZE (256 * 1024)
931
932 typedef struct aironet_ioctl {
933 unsigned short command; // What to do
934 unsigned short len; // Len of data
935 unsigned short ridnum; // rid number
936 unsigned char __user *data; // d-data
937 } aironet_ioctl;
938
939 static const char swversion[] = "2.1";
940 #endif /* CISCO_EXT */
941
942 #define NUM_MODULES 2
943 #define MIC_MSGLEN_MAX 2400
944 #define EMMH32_MSGLEN_MAX MIC_MSGLEN_MAX
945 #define AIRO_DEF_MTU 2312
946
947 typedef struct {
948 u32 size; // size
949 u8 enabled; // MIC enabled or not
950 u32 rxSuccess; // successful packets received
951 u32 rxIncorrectMIC; // pkts dropped due to incorrect MIC comparison
952 u32 rxNotMICed; // pkts dropped due to not being MIC'd
953 u32 rxMICPlummed; // pkts dropped due to not having a MIC plummed
954 u32 rxWrongSequence; // pkts dropped due to sequence number violation
955 u32 reserve[32];
956 } mic_statistics;
957
958 typedef struct {
959 __be32 coeff[((EMMH32_MSGLEN_MAX)+3)>>2];
960 u64 accum; // accumulated mic, reduced to u32 in final()
961 int position; // current position (byte offset) in message
962 union {
963 u8 d8[4];
964 __be32 d32;
965 } part; // saves partial message word across update() calls
966 } emmh32_context;
967
968 typedef struct {
969 emmh32_context seed; // Context - the seed
970 u32 rx; // Received sequence number
971 u32 tx; // Tx sequence number
972 u32 window; // Start of window
973 u8 valid; // Flag to say if context is valid or not
974 u8 key[16];
975 } miccntx;
976
977 typedef struct {
978 miccntx mCtx; // Multicast context
979 miccntx uCtx; // Unicast context
980 } mic_module;
981
982 typedef struct {
983 unsigned int rid: 16;
984 unsigned int len: 15;
985 unsigned int valid: 1;
986 dma_addr_t host_addr;
987 } Rid;
988
989 typedef struct {
990 unsigned int offset: 15;
991 unsigned int eoc: 1;
992 unsigned int len: 15;
993 unsigned int valid: 1;
994 dma_addr_t host_addr;
995 } TxFid;
996
997 struct rx_hdr {
998 __le16 status, len;
999 u8 rssi[2];
1000 u8 rate;
1001 u8 freq;
1002 __le16 tmp[4];
1003 } __packed;
1004
1005 typedef struct {
1006 unsigned int ctl: 15;
1007 unsigned int rdy: 1;
1008 unsigned int len: 15;
1009 unsigned int valid: 1;
1010 dma_addr_t host_addr;
1011 } RxFid;
1012
1013 /*
1014 * Host receive descriptor
1015 */
1016 typedef struct {
1017 unsigned char __iomem *card_ram_off; /* offset into card memory of the
1018 desc */
1019 RxFid rx_desc; /* card receive descriptor */
1020 char *virtual_host_addr; /* virtual address of host receive
1021 buffer */
1022 int pending;
1023 } HostRxDesc;
1024
1025 /*
1026 * Host transmit descriptor
1027 */
1028 typedef struct {
1029 unsigned char __iomem *card_ram_off; /* offset into card memory of the
1030 desc */
1031 TxFid tx_desc; /* card transmit descriptor */
1032 char *virtual_host_addr; /* virtual address of host receive
1033 buffer */
1034 int pending;
1035 } HostTxDesc;
1036
1037 /*
1038 * Host RID descriptor
1039 */
1040 typedef struct {
1041 unsigned char __iomem *card_ram_off; /* offset into card memory of the
1042 descriptor */
1043 Rid rid_desc; /* card RID descriptor */
1044 char *virtual_host_addr; /* virtual address of host receive
1045 buffer */
1046 } HostRidDesc;
1047
1048 typedef struct {
1049 u16 sw0;
1050 u16 sw1;
1051 u16 status;
1052 u16 len;
1053 #define HOST_SET (1 << 0)
1054 #define HOST_INT_TX (1 << 1) /* Interrupt on successful TX */
1055 #define HOST_INT_TXERR (1 << 2) /* Interrupt on unseccessful TX */
1056 #define HOST_LCC_PAYLOAD (1 << 4) /* LLC payload, 0 = Ethertype */
1057 #define HOST_DONT_RLSE (1 << 5) /* Don't release buffer when done */
1058 #define HOST_DONT_RETRY (1 << 6) /* Don't retry trasmit */
1059 #define HOST_CLR_AID (1 << 7) /* clear AID failure */
1060 #define HOST_RTS (1 << 9) /* Force RTS use */
1061 #define HOST_SHORT (1 << 10) /* Do short preamble */
1062 u16 ctl;
1063 u16 aid;
1064 u16 retries;
1065 u16 fill;
1066 } TxCtlHdr;
1067
1068 typedef struct {
1069 u16 ctl;
1070 u16 duration;
1071 char addr1[6];
1072 char addr2[6];
1073 char addr3[6];
1074 u16 seq;
1075 char addr4[6];
1076 } WifiHdr;
1077
1078
1079 typedef struct {
1080 TxCtlHdr ctlhdr;
1081 u16 fill1;
1082 u16 fill2;
1083 WifiHdr wifihdr;
1084 u16 gaplen;
1085 u16 status;
1086 } WifiCtlHdr;
1087
1088 static WifiCtlHdr wifictlhdr8023 = {
1089 .ctlhdr = {
1090 .ctl = HOST_DONT_RLSE,
1091 }
1092 };
1093
1094 // A few details needed for WEP (Wireless Equivalent Privacy)
1095 #define MAX_KEY_SIZE 13 // 128 (?) bits
1096 #define MIN_KEY_SIZE 5 // 40 bits RC4 - WEP
1097 typedef struct wep_key_t {
1098 u16 len;
1099 u8 key[16]; /* 40-bit and 104-bit keys */
1100 } wep_key_t;
1101
1102 /* List of Wireless Handlers (new API) */
1103 static const struct iw_handler_def airo_handler_def;
1104
1105 static const char version[] = "airo.c 0.6 (Ben Reed & Javier Achirica)";
1106
1107 struct airo_info;
1108
1109 static int get_dec_u16(char *buffer, int *start, int limit);
1110 static void OUT4500(struct airo_info *, u16 reg, u16 value);
1111 static unsigned short IN4500(struct airo_info *, u16 reg);
1112 static u16 setup_card(struct airo_info*, u8 *mac, int lock);
1113 static int enable_MAC(struct airo_info *ai, int lock);
1114 static void disable_MAC(struct airo_info *ai, int lock);
1115 static void enable_interrupts(struct airo_info*);
1116 static void disable_interrupts(struct airo_info*);
1117 static u16 issuecommand(struct airo_info*, Cmd *pCmd, Resp *pRsp,
1118 bool may_sleep);
1119 static int bap_setup(struct airo_info*, u16 rid, u16 offset, int whichbap);
1120 static int aux_bap_read(struct airo_info*, __le16 *pu16Dst, int bytelen,
1121 int whichbap);
1122 static int fast_bap_read(struct airo_info*, __le16 *pu16Dst, int bytelen,
1123 int whichbap);
1124 static int bap_write(struct airo_info*, const __le16 *pu16Src, int bytelen,
1125 int whichbap);
1126 static int PC4500_accessrid(struct airo_info*, u16 rid, u16 accmd);
1127 static int PC4500_readrid(struct airo_info*, u16 rid, void *pBuf, int len, int lock);
1128 static int PC4500_writerid(struct airo_info*, u16 rid, const void
1129 *pBuf, int len, int lock);
1130 static int do_writerid(struct airo_info*, u16 rid, const void *rid_data,
1131 int len, int dummy);
1132 static u16 transmit_allocate(struct airo_info*, int lenPayload, int raw);
1133 static int transmit_802_3_packet(struct airo_info*, int len, char *pPacket,
1134 bool may_sleep);
1135 static int transmit_802_11_packet(struct airo_info*, int len, char *pPacket,
1136 bool may_sleep);
1137
1138 static int mpi_send_packet(struct net_device *dev);
1139 static void mpi_unmap_card(struct pci_dev *pci);
1140 static void mpi_receive_802_3(struct airo_info *ai);
1141 static void mpi_receive_802_11(struct airo_info *ai);
1142 static int waitbusy(struct airo_info *ai);
1143
1144 static irqreturn_t airo_interrupt(int irq, void* dev_id);
1145 static int airo_thread(void *data);
1146 static void timer_func(struct net_device *dev);
1147 static int airo_siocdevprivate(struct net_device *dev, struct ifreq *rq, void __user *, int cmd);
1148 static struct iw_statistics *airo_get_wireless_stats(struct net_device *dev);
1149 #ifdef CISCO_EXT
1150 static int readrids(struct net_device *dev, aironet_ioctl *comp);
1151 static int writerids(struct net_device *dev, aironet_ioctl *comp);
1152 static int flashcard(struct net_device *dev, aironet_ioctl *comp);
1153 #endif /* CISCO_EXT */
1154 static void micinit(struct airo_info *ai);
1155 static int micsetup(struct airo_info *ai);
1156 static int encapsulate(struct airo_info *ai, etherHead *pPacket, MICBuffer *buffer, int len);
1157 static int decapsulate(struct airo_info *ai, MICBuffer *mic, etherHead *pPacket, u16 payLen);
1158
1159 static u8 airo_rssi_to_dbm(tdsRssiEntry *rssi_rid, u8 rssi);
1160 static u8 airo_dbm_to_pct(tdsRssiEntry *rssi_rid, u8 dbm);
1161
1162 static void airo_networks_free(struct airo_info *ai);
1163
1164 struct airo_info {
1165 struct net_device *dev;
1166 struct list_head dev_list;
1167 /* Note, we can have MAX_FIDS outstanding. FIDs are 16-bits, so we
1168 use the high bit to mark whether it is in use. */
1169 #define MAX_FIDS 6
1170 #define MPI_MAX_FIDS 1
1171 u32 fids[MAX_FIDS];
1172 ConfigRid config;
1173 char keyindex; // Used with auto wep
1174 char defindex; // Used with auto wep
1175 struct proc_dir_entry *proc_entry;
1176 spinlock_t aux_lock;
1177 #define FLAG_RADIO_OFF 0 /* User disabling of MAC */
1178 #define FLAG_RADIO_DOWN 1 /* ifup/ifdown disabling of MAC */
1179 #define FLAG_RADIO_MASK 0x03
1180 #define FLAG_ENABLED 2
1181 #define FLAG_ADHOC 3 /* Needed by MIC */
1182 #define FLAG_MIC_CAPABLE 4
1183 #define FLAG_UPDATE_MULTI 5
1184 #define FLAG_UPDATE_UNI 6
1185 #define FLAG_802_11 7
1186 #define FLAG_PROMISC 8 /* IFF_PROMISC 0x100 - include/linux/if.h */
1187 #define FLAG_PENDING_XMIT 9
1188 #define FLAG_PENDING_XMIT11 10
1189 #define FLAG_MPI 11
1190 #define FLAG_REGISTERED 12
1191 #define FLAG_COMMIT 13
1192 #define FLAG_RESET 14
1193 #define FLAG_FLASHING 15
1194 #define FLAG_WPA_CAPABLE 16
1195 unsigned long flags;
1196 #define JOB_DIE 0
1197 #define JOB_XMIT 1
1198 #define JOB_XMIT11 2
1199 #define JOB_STATS 3
1200 #define JOB_PROMISC 4
1201 #define JOB_MIC 5
1202 #define JOB_EVENT 6
1203 #define JOB_AUTOWEP 7
1204 #define JOB_SCAN_RESULTS 9
1205 unsigned long jobs;
1206 int (*bap_read)(struct airo_info*, __le16 *pu16Dst, int bytelen,
1207 int whichbap);
1208 unsigned short *flash;
1209 tdsRssiEntry *rssi;
1210 struct task_struct *list_bss_task;
1211 struct task_struct *airo_thread_task;
1212 struct semaphore sem;
1213 wait_queue_head_t thr_wait;
1214 unsigned long expires;
1215 struct {
1216 struct sk_buff *skb;
1217 int fid;
1218 } xmit, xmit11;
1219 struct net_device *wifidev;
1220 struct iw_statistics wstats; // wireless stats
1221 unsigned long scan_timeout; /* Time scan should be read */
1222 struct iw_spy_data spy_data;
1223 struct iw_public_data wireless_data;
1224 /* MIC stuff */
1225 struct crypto_sync_skcipher *tfm;
1226 mic_module mod[2];
1227 mic_statistics micstats;
1228 HostRxDesc rxfids[MPI_MAX_FIDS]; // rx/tx/config MPI350 descriptors
1229 HostTxDesc txfids[MPI_MAX_FIDS];
1230 HostRidDesc config_desc;
1231 unsigned long ridbus; // phys addr of config_desc
1232 struct sk_buff_head txq;// tx queue used by mpi350 code
1233 struct pci_dev *pci;
1234 unsigned char __iomem *pcimem;
1235 unsigned char __iomem *pciaux;
1236 unsigned char *shared;
1237 dma_addr_t shared_dma;
1238 pm_message_t power;
1239 SsidRid *SSID;
1240 APListRid APList;
1241 #define PCI_SHARED_LEN 2*MPI_MAX_FIDS*PKTSIZE+RIDSIZE
1242 char proc_name[IFNAMSIZ];
1243
1244 int wep_capable;
1245 int max_wep_idx;
1246 int last_auth;
1247
1248 /* WPA-related stuff */
1249 unsigned int bssListFirst;
1250 unsigned int bssListNext;
1251 unsigned int bssListRidLen;
1252
1253 struct list_head network_list;
1254 struct list_head network_free_list;
1255 BSSListElement *networks;
1256 };
1257
bap_read(struct airo_info * ai,__le16 * pu16Dst,int bytelen,int whichbap)1258 static inline int bap_read(struct airo_info *ai, __le16 *pu16Dst, int bytelen,
1259 int whichbap)
1260 {
1261 return ai->bap_read(ai, pu16Dst, bytelen, whichbap);
1262 }
1263
1264 static int setup_proc_entry(struct net_device *dev,
1265 struct airo_info *apriv);
1266 static int takedown_proc_entry(struct net_device *dev,
1267 struct airo_info *apriv);
1268
1269 static int cmdreset(struct airo_info *ai);
1270 static int setflashmode(struct airo_info *ai);
1271 static int flashgchar(struct airo_info *ai, int matchbyte, int dwelltime);
1272 static int flashputbuf(struct airo_info *ai);
1273 static int flashrestart(struct airo_info *ai, struct net_device *dev);
1274
1275 #define airo_print(type, name, fmt, args...) \
1276 printk(type DRV_NAME "(%s): " fmt "\n", name, ##args)
1277
1278 #define airo_print_info(name, fmt, args...) \
1279 airo_print(KERN_INFO, name, fmt, ##args)
1280
1281 #define airo_print_dbg(name, fmt, args...) \
1282 airo_print(KERN_DEBUG, name, fmt, ##args)
1283
1284 #define airo_print_warn(name, fmt, args...) \
1285 airo_print(KERN_WARNING, name, fmt, ##args)
1286
1287 #define airo_print_err(name, fmt, args...) \
1288 airo_print(KERN_ERR, name, fmt, ##args)
1289
1290 #define AIRO_FLASH(dev) (((struct airo_info *)dev->ml_priv)->flash)
1291
1292 /***********************************************************************
1293 * MIC ROUTINES *
1294 ***********************************************************************
1295 */
1296
1297 static int RxSeqValid(struct airo_info *ai, miccntx *context, int mcast, u32 micSeq);
1298 static void MoveWindow(miccntx *context, u32 micSeq);
1299 static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen,
1300 struct crypto_sync_skcipher *tfm);
1301 static void emmh32_init(emmh32_context *context);
1302 static void emmh32_update(emmh32_context *context, u8 *pOctets, int len);
1303 static void emmh32_final(emmh32_context *context, u8 digest[4]);
1304 static int flashpchar(struct airo_info *ai, int byte, int dwelltime);
1305
age_mic_context(miccntx * cur,miccntx * old,u8 * key,int key_len,struct crypto_sync_skcipher * tfm)1306 static void age_mic_context(miccntx *cur, miccntx *old, u8 *key, int key_len,
1307 struct crypto_sync_skcipher *tfm)
1308 {
1309 /* If the current MIC context is valid and its key is the same as
1310 * the MIC register, there's nothing to do.
1311 */
1312 if (cur->valid && (memcmp(cur->key, key, key_len) == 0))
1313 return;
1314
1315 /* Age current mic Context */
1316 memcpy(old, cur, sizeof(*cur));
1317
1318 /* Initialize new context */
1319 memcpy(cur->key, key, key_len);
1320 cur->window = 33; /* Window always points to the middle */
1321 cur->rx = 0; /* Rx Sequence numbers */
1322 cur->tx = 0; /* Tx sequence numbers */
1323 cur->valid = 1; /* Key is now valid */
1324
1325 /* Give key to mic seed */
1326 emmh32_setseed(&cur->seed, key, key_len, tfm);
1327 }
1328
1329 /* micinit - Initialize mic seed */
1330
micinit(struct airo_info * ai)1331 static void micinit(struct airo_info *ai)
1332 {
1333 MICRid mic_rid;
1334
1335 clear_bit(JOB_MIC, &ai->jobs);
1336 PC4500_readrid(ai, RID_MIC, &mic_rid, sizeof(mic_rid), 0);
1337 up(&ai->sem);
1338
1339 ai->micstats.enabled = (le16_to_cpu(mic_rid.state) & 0x00FF) ? 1 : 0;
1340 if (!ai->micstats.enabled) {
1341 /* So next time we have a valid key and mic is enabled, we will
1342 * update the sequence number if the key is the same as before.
1343 */
1344 ai->mod[0].uCtx.valid = 0;
1345 ai->mod[0].mCtx.valid = 0;
1346 return;
1347 }
1348
1349 if (mic_rid.multicastValid) {
1350 age_mic_context(&ai->mod[0].mCtx, &ai->mod[1].mCtx,
1351 mic_rid.multicast, sizeof(mic_rid.multicast),
1352 ai->tfm);
1353 }
1354
1355 if (mic_rid.unicastValid) {
1356 age_mic_context(&ai->mod[0].uCtx, &ai->mod[1].uCtx,
1357 mic_rid.unicast, sizeof(mic_rid.unicast),
1358 ai->tfm);
1359 }
1360 }
1361
1362 /* micsetup - Get ready for business */
1363
micsetup(struct airo_info * ai)1364 static int micsetup(struct airo_info *ai)
1365 {
1366 int i;
1367
1368 if (ai->tfm == NULL)
1369 ai->tfm = crypto_alloc_sync_skcipher("ctr(aes)", 0, 0);
1370
1371 if (IS_ERR(ai->tfm)) {
1372 airo_print_err(ai->dev->name, "failed to load transform for AES");
1373 ai->tfm = NULL;
1374 return ERROR;
1375 }
1376
1377 for (i = 0; i < NUM_MODULES; i++) {
1378 memset(&ai->mod[i].mCtx, 0, sizeof(miccntx));
1379 memset(&ai->mod[i].uCtx, 0, sizeof(miccntx));
1380 }
1381 return SUCCESS;
1382 }
1383
1384 static const u8 micsnap[] = {0xAA, 0xAA, 0x03, 0x00, 0x40, 0x96, 0x00, 0x02};
1385
1386 /*===========================================================================
1387 * Description: Mic a packet
1388 *
1389 * Inputs: etherHead * pointer to an 802.3 frame
1390 *
1391 * Returns: BOOLEAN if successful, otherwise false.
1392 * PacketTxLen will be updated with the mic'd packets size.
1393 *
1394 * Caveats: It is assumed that the frame buffer will already
1395 * be big enough to hold the largets mic message possible.
1396 * (No memory allocation is done here).
1397 *
1398 * Author: sbraneky (10/15/01)
1399 * Merciless hacks by rwilcher (1/14/02)
1400 */
1401
encapsulate(struct airo_info * ai,etherHead * frame,MICBuffer * mic,int payLen)1402 static int encapsulate(struct airo_info *ai, etherHead *frame, MICBuffer *mic, int payLen)
1403 {
1404 miccntx *context;
1405
1406 // Determine correct context
1407 // If not adhoc, always use unicast key
1408
1409 if (test_bit(FLAG_ADHOC, &ai->flags) && (frame->da[0] & 0x1))
1410 context = &ai->mod[0].mCtx;
1411 else
1412 context = &ai->mod[0].uCtx;
1413
1414 if (!context->valid)
1415 return ERROR;
1416
1417 mic->typelen = htons(payLen + 16); //Length of Mic'd packet
1418
1419 memcpy(&mic->u.snap, micsnap, sizeof(micsnap)); // Add Snap
1420
1421 // Add Tx sequence
1422 mic->seq = htonl(context->tx);
1423 context->tx += 2;
1424
1425 emmh32_init(&context->seed); // Mic the packet
1426 emmh32_update(&context->seed, frame->da, ETH_ALEN * 2); // DA, SA
1427 emmh32_update(&context->seed, (u8*)&mic->typelen, 10); // Type/Length and Snap
1428 emmh32_update(&context->seed, (u8*)&mic->seq, sizeof(mic->seq)); //SEQ
1429 emmh32_update(&context->seed, (u8*)(frame + 1), payLen); //payload
1430 emmh32_final(&context->seed, (u8*)&mic->mic);
1431
1432 /* New Type/length ?????????? */
1433 mic->typelen = 0; //Let NIC know it could be an oversized packet
1434 return SUCCESS;
1435 }
1436
1437 typedef enum {
1438 NONE,
1439 NOMIC,
1440 NOMICPLUMMED,
1441 SEQUENCE,
1442 INCORRECTMIC,
1443 } mic_error;
1444
1445 /*===========================================================================
1446 * Description: Decapsulates a MIC'd packet and returns the 802.3 packet
1447 * (removes the MIC stuff) if packet is a valid packet.
1448 *
1449 * Inputs: etherHead pointer to the 802.3 packet
1450 *
1451 * Returns: BOOLEAN - TRUE if packet should be dropped otherwise FALSE
1452 *
1453 * Author: sbraneky (10/15/01)
1454 * Merciless hacks by rwilcher (1/14/02)
1455 *---------------------------------------------------------------------------
1456 */
1457
decapsulate(struct airo_info * ai,MICBuffer * mic,etherHead * eth,u16 payLen)1458 static int decapsulate(struct airo_info *ai, MICBuffer *mic, etherHead *eth, u16 payLen)
1459 {
1460 int i;
1461 u32 micSEQ;
1462 miccntx *context;
1463 u8 digest[4];
1464 mic_error micError = NONE;
1465
1466 // Check if the packet is a Mic'd packet
1467
1468 if (!ai->micstats.enabled) {
1469 //No Mic set or Mic OFF but we received a MIC'd packet.
1470 if (memcmp ((u8*)eth + 14, micsnap, sizeof(micsnap)) == 0) {
1471 ai->micstats.rxMICPlummed++;
1472 return ERROR;
1473 }
1474 return SUCCESS;
1475 }
1476
1477 if (ntohs(mic->typelen) == 0x888E)
1478 return SUCCESS;
1479
1480 if (memcmp (mic->u.snap, micsnap, sizeof(micsnap)) != 0) {
1481 // Mic enabled but packet isn't Mic'd
1482 ai->micstats.rxMICPlummed++;
1483 return ERROR;
1484 }
1485
1486 micSEQ = ntohl(mic->seq); //store SEQ as CPU order
1487
1488 //At this point we a have a mic'd packet and mic is enabled
1489 //Now do the mic error checking.
1490
1491 //Receive seq must be odd
1492 if ((micSEQ & 1) == 0) {
1493 ai->micstats.rxWrongSequence++;
1494 return ERROR;
1495 }
1496
1497 for (i = 0; i < NUM_MODULES; i++) {
1498 int mcast = eth->da[0] & 1;
1499 //Determine proper context
1500 context = mcast ? &ai->mod[i].mCtx : &ai->mod[i].uCtx;
1501
1502 //Make sure context is valid
1503 if (!context->valid) {
1504 if (i == 0)
1505 micError = NOMICPLUMMED;
1506 continue;
1507 }
1508 //DeMic it
1509
1510 if (!mic->typelen)
1511 mic->typelen = htons(payLen + sizeof(MICBuffer) - 2);
1512
1513 emmh32_init(&context->seed);
1514 emmh32_update(&context->seed, eth->da, ETH_ALEN*2);
1515 emmh32_update(&context->seed, (u8 *)&mic->typelen, sizeof(mic->typelen)+sizeof(mic->u.snap));
1516 emmh32_update(&context->seed, (u8 *)&mic->seq, sizeof(mic->seq));
1517 emmh32_update(&context->seed, (u8 *)(eth + 1), payLen);
1518 //Calculate MIC
1519 emmh32_final(&context->seed, digest);
1520
1521 if (memcmp(digest, &mic->mic, 4)) { //Make sure the mics match
1522 //Invalid Mic
1523 if (i == 0)
1524 micError = INCORRECTMIC;
1525 continue;
1526 }
1527
1528 //Check Sequence number if mics pass
1529 if (RxSeqValid(ai, context, mcast, micSEQ) == SUCCESS) {
1530 ai->micstats.rxSuccess++;
1531 return SUCCESS;
1532 }
1533 if (i == 0)
1534 micError = SEQUENCE;
1535 }
1536
1537 // Update statistics
1538 switch (micError) {
1539 case NOMICPLUMMED: ai->micstats.rxMICPlummed++; break;
1540 case SEQUENCE: ai->micstats.rxWrongSequence++; break;
1541 case INCORRECTMIC: ai->micstats.rxIncorrectMIC++; break;
1542 case NONE: break;
1543 case NOMIC: break;
1544 }
1545 return ERROR;
1546 }
1547
1548 /*===========================================================================
1549 * Description: Checks the Rx Seq number to make sure it is valid
1550 * and hasn't already been received
1551 *
1552 * Inputs: miccntx - mic context to check seq against
1553 * micSeq - the Mic seq number
1554 *
1555 * Returns: TRUE if valid otherwise FALSE.
1556 *
1557 * Author: sbraneky (10/15/01)
1558 * Merciless hacks by rwilcher (1/14/02)
1559 *---------------------------------------------------------------------------
1560 */
1561
RxSeqValid(struct airo_info * ai,miccntx * context,int mcast,u32 micSeq)1562 static int RxSeqValid(struct airo_info *ai, miccntx *context, int mcast, u32 micSeq)
1563 {
1564 u32 seq, index;
1565
1566 //Allow for the ap being rebooted - if it is then use the next
1567 //sequence number of the current sequence number - might go backwards
1568
1569 if (mcast) {
1570 if (test_bit(FLAG_UPDATE_MULTI, &ai->flags)) {
1571 clear_bit (FLAG_UPDATE_MULTI, &ai->flags);
1572 context->window = (micSeq > 33) ? micSeq : 33;
1573 context->rx = 0; // Reset rx
1574 }
1575 } else if (test_bit(FLAG_UPDATE_UNI, &ai->flags)) {
1576 clear_bit (FLAG_UPDATE_UNI, &ai->flags);
1577 context->window = (micSeq > 33) ? micSeq : 33; // Move window
1578 context->rx = 0; // Reset rx
1579 }
1580
1581 //Make sequence number relative to START of window
1582 seq = micSeq - (context->window - 33);
1583
1584 //Too old of a SEQ number to check.
1585 if ((s32)seq < 0)
1586 return ERROR;
1587
1588 if (seq > 64) {
1589 //Window is infinite forward
1590 MoveWindow(context, micSeq);
1591 return SUCCESS;
1592 }
1593
1594 // We are in the window. Now check the context rx bit to see if it was already sent
1595 seq >>= 1; //divide by 2 because we only have odd numbers
1596 index = 1 << seq; //Get an index number
1597
1598 if (!(context->rx & index)) {
1599 //micSEQ falls inside the window.
1600 //Add seqence number to the list of received numbers.
1601 context->rx |= index;
1602
1603 MoveWindow(context, micSeq);
1604
1605 return SUCCESS;
1606 }
1607 return ERROR;
1608 }
1609
MoveWindow(miccntx * context,u32 micSeq)1610 static void MoveWindow(miccntx *context, u32 micSeq)
1611 {
1612 u32 shift;
1613
1614 //Move window if seq greater than the middle of the window
1615 if (micSeq > context->window) {
1616 shift = (micSeq - context->window) >> 1;
1617
1618 //Shift out old
1619 if (shift < 32)
1620 context->rx >>= shift;
1621 else
1622 context->rx = 0;
1623
1624 context->window = micSeq; //Move window
1625 }
1626 }
1627
1628 /*==============================================*/
1629 /*========== EMMH ROUTINES ====================*/
1630 /*==============================================*/
1631
1632 /* mic accumulate */
1633 #define MIC_ACCUM(val) \
1634 context->accum += (u64)(val) * be32_to_cpu(context->coeff[coeff_position++]);
1635
1636 /* expand the key to fill the MMH coefficient array */
emmh32_setseed(emmh32_context * context,u8 * pkey,int keylen,struct crypto_sync_skcipher * tfm)1637 static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen,
1638 struct crypto_sync_skcipher *tfm)
1639 {
1640 /* take the keying material, expand if necessary, truncate at 16-bytes */
1641 /* run through AES counter mode to generate context->coeff[] */
1642
1643 SYNC_SKCIPHER_REQUEST_ON_STACK(req, tfm);
1644 struct scatterlist sg;
1645 u8 iv[AES_BLOCK_SIZE] = {};
1646 int ret;
1647
1648 crypto_sync_skcipher_setkey(tfm, pkey, 16);
1649
1650 memset(context->coeff, 0, sizeof(context->coeff));
1651 sg_init_one(&sg, context->coeff, sizeof(context->coeff));
1652
1653 skcipher_request_set_sync_tfm(req, tfm);
1654 skcipher_request_set_callback(req, 0, NULL, NULL);
1655 skcipher_request_set_crypt(req, &sg, &sg, sizeof(context->coeff), iv);
1656
1657 ret = crypto_skcipher_encrypt(req);
1658 WARN_ON_ONCE(ret);
1659 }
1660
1661 /* prepare for calculation of a new mic */
emmh32_init(emmh32_context * context)1662 static void emmh32_init(emmh32_context *context)
1663 {
1664 /* prepare for new mic calculation */
1665 context->accum = 0;
1666 context->position = 0;
1667 }
1668
1669 /* add some bytes to the mic calculation */
emmh32_update(emmh32_context * context,u8 * pOctets,int len)1670 static void emmh32_update(emmh32_context *context, u8 *pOctets, int len)
1671 {
1672 int coeff_position, byte_position;
1673
1674 if (len == 0) return;
1675
1676 coeff_position = context->position >> 2;
1677
1678 /* deal with partial 32-bit word left over from last update */
1679 byte_position = context->position & 3;
1680 if (byte_position) {
1681 /* have a partial word in part to deal with */
1682 do {
1683 if (len == 0) return;
1684 context->part.d8[byte_position++] = *pOctets++;
1685 context->position++;
1686 len--;
1687 } while (byte_position < 4);
1688 MIC_ACCUM(ntohl(context->part.d32));
1689 }
1690
1691 /* deal with full 32-bit words */
1692 while (len >= 4) {
1693 MIC_ACCUM(ntohl(*(__be32 *)pOctets));
1694 context->position += 4;
1695 pOctets += 4;
1696 len -= 4;
1697 }
1698
1699 /* deal with partial 32-bit word that will be left over from this update */
1700 byte_position = 0;
1701 while (len > 0) {
1702 context->part.d8[byte_position++] = *pOctets++;
1703 context->position++;
1704 len--;
1705 }
1706 }
1707
1708 /* mask used to zero empty bytes for final partial word */
1709 static u32 mask32[4] = { 0x00000000L, 0xFF000000L, 0xFFFF0000L, 0xFFFFFF00L };
1710
1711 /* calculate the mic */
emmh32_final(emmh32_context * context,u8 digest[4])1712 static void emmh32_final(emmh32_context *context, u8 digest[4])
1713 {
1714 int coeff_position, byte_position;
1715 u32 val;
1716
1717 u64 sum, utmp;
1718 s64 stmp;
1719
1720 coeff_position = context->position >> 2;
1721
1722 /* deal with partial 32-bit word left over from last update */
1723 byte_position = context->position & 3;
1724 if (byte_position) {
1725 /* have a partial word in part to deal with */
1726 val = ntohl(context->part.d32);
1727 MIC_ACCUM(val & mask32[byte_position]); /* zero empty bytes */
1728 }
1729
1730 /* reduce the accumulated u64 to a 32-bit MIC */
1731 sum = context->accum;
1732 stmp = (sum & 0xffffffffLL) - ((sum >> 32) * 15);
1733 utmp = (stmp & 0xffffffffLL) - ((stmp >> 32) * 15);
1734 sum = utmp & 0xffffffffLL;
1735 if (utmp > 0x10000000fLL)
1736 sum -= 15;
1737
1738 val = (u32)sum;
1739 digest[0] = (val>>24) & 0xFF;
1740 digest[1] = (val>>16) & 0xFF;
1741 digest[2] = (val>>8) & 0xFF;
1742 digest[3] = val & 0xFF;
1743 }
1744
readBSSListRid(struct airo_info * ai,int first,BSSListRid * list)1745 static int readBSSListRid(struct airo_info *ai, int first,
1746 BSSListRid *list)
1747 {
1748 Cmd cmd;
1749 Resp rsp;
1750
1751 if (first == 1) {
1752 if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN;
1753 memset(&cmd, 0, sizeof(cmd));
1754 cmd.cmd = CMD_LISTBSS;
1755 if (down_interruptible(&ai->sem))
1756 return -ERESTARTSYS;
1757 ai->list_bss_task = current;
1758 issuecommand(ai, &cmd, &rsp, true);
1759 up(&ai->sem);
1760 /* Let the command take effect */
1761 schedule_timeout_uninterruptible(3 * HZ);
1762 ai->list_bss_task = NULL;
1763 }
1764 return PC4500_readrid(ai, first ? ai->bssListFirst : ai->bssListNext,
1765 list, ai->bssListRidLen, 1);
1766 }
1767
readWepKeyRid(struct airo_info * ai,WepKeyRid * wkr,int temp,int lock)1768 static int readWepKeyRid(struct airo_info *ai, WepKeyRid *wkr, int temp, int lock)
1769 {
1770 return PC4500_readrid(ai, temp ? RID_WEP_TEMP : RID_WEP_PERM,
1771 wkr, sizeof(*wkr), lock);
1772 }
1773
writeWepKeyRid(struct airo_info * ai,WepKeyRid * wkr,int perm,int lock)1774 static int writeWepKeyRid(struct airo_info *ai, WepKeyRid *wkr, int perm, int lock)
1775 {
1776 int rc;
1777 rc = PC4500_writerid(ai, RID_WEP_TEMP, wkr, sizeof(*wkr), lock);
1778 if (rc!=SUCCESS)
1779 airo_print_err(ai->dev->name, "WEP_TEMP set %x", rc);
1780 if (perm) {
1781 rc = PC4500_writerid(ai, RID_WEP_PERM, wkr, sizeof(*wkr), lock);
1782 if (rc!=SUCCESS)
1783 airo_print_err(ai->dev->name, "WEP_PERM set %x", rc);
1784 }
1785 return rc;
1786 }
1787
readSsidRid(struct airo_info * ai,SsidRid * ssidr)1788 static int readSsidRid(struct airo_info*ai, SsidRid *ssidr)
1789 {
1790 return PC4500_readrid(ai, RID_SSID, ssidr, sizeof(*ssidr), 1);
1791 }
1792
writeSsidRid(struct airo_info * ai,SsidRid * pssidr,int lock)1793 static int writeSsidRid(struct airo_info*ai, SsidRid *pssidr, int lock)
1794 {
1795 return PC4500_writerid(ai, RID_SSID, pssidr, sizeof(*pssidr), lock);
1796 }
1797
readConfigRid(struct airo_info * ai,int lock)1798 static int readConfigRid(struct airo_info *ai, int lock)
1799 {
1800 int rc;
1801 ConfigRid cfg;
1802
1803 if (ai->config.len)
1804 return SUCCESS;
1805
1806 rc = PC4500_readrid(ai, RID_ACTUALCONFIG, &cfg, sizeof(cfg), lock);
1807 if (rc != SUCCESS)
1808 return rc;
1809
1810 ai->config = cfg;
1811 return SUCCESS;
1812 }
1813
checkThrottle(struct airo_info * ai)1814 static inline void checkThrottle(struct airo_info *ai)
1815 {
1816 int i;
1817 /* Old hardware had a limit on encryption speed */
1818 if (ai->config.authType != AUTH_OPEN && maxencrypt) {
1819 for (i = 0; i<8; i++) {
1820 if (ai->config.rates[i] > maxencrypt) {
1821 ai->config.rates[i] = 0;
1822 }
1823 }
1824 }
1825 }
1826
writeConfigRid(struct airo_info * ai,int lock)1827 static int writeConfigRid(struct airo_info *ai, int lock)
1828 {
1829 ConfigRid cfgr;
1830
1831 if (!test_bit (FLAG_COMMIT, &ai->flags))
1832 return SUCCESS;
1833
1834 clear_bit (FLAG_COMMIT, &ai->flags);
1835 clear_bit (FLAG_RESET, &ai->flags);
1836 checkThrottle(ai);
1837 cfgr = ai->config;
1838
1839 if ((cfgr.opmode & MODE_CFG_MASK) == MODE_STA_IBSS)
1840 set_bit(FLAG_ADHOC, &ai->flags);
1841 else
1842 clear_bit(FLAG_ADHOC, &ai->flags);
1843
1844 return PC4500_writerid(ai, RID_CONFIG, &cfgr, sizeof(cfgr), lock);
1845 }
1846
readStatusRid(struct airo_info * ai,StatusRid * statr,int lock)1847 static int readStatusRid(struct airo_info *ai, StatusRid *statr, int lock)
1848 {
1849 return PC4500_readrid(ai, RID_STATUS, statr, sizeof(*statr), lock);
1850 }
1851
writeAPListRid(struct airo_info * ai,APListRid * aplr,int lock)1852 static int writeAPListRid(struct airo_info *ai, APListRid *aplr, int lock)
1853 {
1854 return PC4500_writerid(ai, RID_APLIST, aplr, sizeof(*aplr), lock);
1855 }
1856
readCapabilityRid(struct airo_info * ai,CapabilityRid * capr,int lock)1857 static int readCapabilityRid(struct airo_info *ai, CapabilityRid *capr, int lock)
1858 {
1859 return PC4500_readrid(ai, RID_CAPABILITIES, capr, sizeof(*capr), lock);
1860 }
1861
readStatsRid(struct airo_info * ai,StatsRid * sr,int rid,int lock)1862 static int readStatsRid(struct airo_info*ai, StatsRid *sr, int rid, int lock)
1863 {
1864 return PC4500_readrid(ai, rid, sr, sizeof(*sr), lock);
1865 }
1866
try_auto_wep(struct airo_info * ai)1867 static void try_auto_wep(struct airo_info *ai)
1868 {
1869 if (auto_wep && !test_bit(FLAG_RADIO_DOWN, &ai->flags)) {
1870 ai->expires = RUN_AT(3*HZ);
1871 wake_up_interruptible(&ai->thr_wait);
1872 }
1873 }
1874
airo_open(struct net_device * dev)1875 static int airo_open(struct net_device *dev)
1876 {
1877 struct airo_info *ai = dev->ml_priv;
1878 int rc = 0;
1879
1880 if (test_bit(FLAG_FLASHING, &ai->flags))
1881 return -EIO;
1882
1883 /* Make sure the card is configured.
1884 * Wireless Extensions may postpone config changes until the card
1885 * is open (to pipeline changes and speed-up card setup). If
1886 * those changes are not yet committed, do it now - Jean II */
1887 if (test_bit(FLAG_COMMIT, &ai->flags)) {
1888 disable_MAC(ai, 1);
1889 writeConfigRid(ai, 1);
1890 }
1891
1892 if (ai->wifidev != dev) {
1893 clear_bit(JOB_DIE, &ai->jobs);
1894 ai->airo_thread_task = kthread_run(airo_thread, dev, "%s",
1895 dev->name);
1896 if (IS_ERR(ai->airo_thread_task))
1897 return (int)PTR_ERR(ai->airo_thread_task);
1898
1899 rc = request_irq(dev->irq, airo_interrupt, IRQF_SHARED,
1900 dev->name, dev);
1901 if (rc) {
1902 airo_print_err(dev->name,
1903 "register interrupt %d failed, rc %d",
1904 dev->irq, rc);
1905 set_bit(JOB_DIE, &ai->jobs);
1906 kthread_stop(ai->airo_thread_task);
1907 return rc;
1908 }
1909
1910 /* Power on the MAC controller (which may have been disabled) */
1911 clear_bit(FLAG_RADIO_DOWN, &ai->flags);
1912 enable_interrupts(ai);
1913
1914 try_auto_wep(ai);
1915 }
1916 enable_MAC(ai, 1);
1917
1918 netif_start_queue(dev);
1919 return 0;
1920 }
1921
mpi_start_xmit(struct sk_buff * skb,struct net_device * dev)1922 static netdev_tx_t mpi_start_xmit(struct sk_buff *skb,
1923 struct net_device *dev)
1924 {
1925 int npacks, pending;
1926 unsigned long flags;
1927 struct airo_info *ai = dev->ml_priv;
1928
1929 if (!skb) {
1930 airo_print_err(dev->name, "%s: skb == NULL!",__func__);
1931 return NETDEV_TX_OK;
1932 }
1933 if (skb_padto(skb, ETH_ZLEN)) {
1934 dev->stats.tx_dropped++;
1935 return NETDEV_TX_OK;
1936 }
1937 npacks = skb_queue_len (&ai->txq);
1938
1939 if (npacks >= MAXTXQ - 1) {
1940 netif_stop_queue (dev);
1941 if (npacks > MAXTXQ) {
1942 dev->stats.tx_fifo_errors++;
1943 return NETDEV_TX_BUSY;
1944 }
1945 skb_queue_tail (&ai->txq, skb);
1946 return NETDEV_TX_OK;
1947 }
1948
1949 spin_lock_irqsave(&ai->aux_lock, flags);
1950 skb_queue_tail (&ai->txq, skb);
1951 pending = test_bit(FLAG_PENDING_XMIT, &ai->flags);
1952 spin_unlock_irqrestore(&ai->aux_lock, flags);
1953 netif_wake_queue (dev);
1954
1955 if (pending == 0) {
1956 set_bit(FLAG_PENDING_XMIT, &ai->flags);
1957 mpi_send_packet (dev);
1958 }
1959 return NETDEV_TX_OK;
1960 }
1961
1962 /*
1963 * @mpi_send_packet
1964 *
1965 * Attempt to transmit a packet. Can be called from interrupt
1966 * or transmit . return number of packets we tried to send
1967 */
1968
mpi_send_packet(struct net_device * dev)1969 static int mpi_send_packet (struct net_device *dev)
1970 {
1971 struct sk_buff *skb;
1972 unsigned char *buffer;
1973 s16 len;
1974 __le16 *payloadLen;
1975 struct airo_info *ai = dev->ml_priv;
1976 u8 *sendbuf;
1977
1978 /* get a packet to send */
1979
1980 if ((skb = skb_dequeue(&ai->txq)) == NULL) {
1981 airo_print_err(dev->name,
1982 "%s: Dequeue'd zero in send_packet()",
1983 __func__);
1984 return 0;
1985 }
1986
1987 /* check min length*/
1988 len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
1989 buffer = skb->data;
1990
1991 ai->txfids[0].tx_desc.offset = 0;
1992 ai->txfids[0].tx_desc.valid = 1;
1993 ai->txfids[0].tx_desc.eoc = 1;
1994 ai->txfids[0].tx_desc.len =len+sizeof(WifiHdr);
1995
1996 /*
1997 * Magic, the cards firmware needs a length count (2 bytes) in the host buffer
1998 * right after TXFID_HDR.The TXFID_HDR contains the status short so payloadlen
1999 * is immediately after it. ------------------------------------------------
2000 * |TXFIDHDR+STATUS|PAYLOADLEN|802.3HDR|PACKETDATA|
2001 * ------------------------------------------------
2002 */
2003
2004 memcpy(ai->txfids[0].virtual_host_addr,
2005 (char *)&wifictlhdr8023, sizeof(wifictlhdr8023));
2006
2007 payloadLen = (__le16 *)(ai->txfids[0].virtual_host_addr +
2008 sizeof(wifictlhdr8023));
2009 sendbuf = ai->txfids[0].virtual_host_addr +
2010 sizeof(wifictlhdr8023) + 2 ;
2011
2012 /*
2013 * Firmware automatically puts 802 header on so
2014 * we don't need to account for it in the length
2015 */
2016 if (test_bit(FLAG_MIC_CAPABLE, &ai->flags) && ai->micstats.enabled &&
2017 (ntohs(((__be16 *)buffer)[6]) != 0x888E)) {
2018 MICBuffer pMic;
2019
2020 if (encapsulate(ai, (etherHead *)buffer, &pMic, len - sizeof(etherHead)) != SUCCESS)
2021 return ERROR;
2022
2023 *payloadLen = cpu_to_le16(len-sizeof(etherHead)+sizeof(pMic));
2024 ai->txfids[0].tx_desc.len += sizeof(pMic);
2025 /* copy data into airo dma buffer */
2026 memcpy (sendbuf, buffer, sizeof(etherHead));
2027 buffer += sizeof(etherHead);
2028 sendbuf += sizeof(etherHead);
2029 memcpy (sendbuf, &pMic, sizeof(pMic));
2030 sendbuf += sizeof(pMic);
2031 memcpy (sendbuf, buffer, len - sizeof(etherHead));
2032 } else {
2033 *payloadLen = cpu_to_le16(len - sizeof(etherHead));
2034
2035 netif_trans_update(dev);
2036
2037 /* copy data into airo dma buffer */
2038 memcpy(sendbuf, buffer, len);
2039 }
2040
2041 memcpy_toio(ai->txfids[0].card_ram_off,
2042 &ai->txfids[0].tx_desc, sizeof(TxFid));
2043
2044 OUT4500(ai, EVACK, 8);
2045
2046 dev_kfree_skb_any(skb);
2047 return 1;
2048 }
2049
get_tx_error(struct airo_info * ai,s32 fid)2050 static void get_tx_error(struct airo_info *ai, s32 fid)
2051 {
2052 __le16 status;
2053
2054 if (fid < 0)
2055 status = ((WifiCtlHdr *)ai->txfids[0].virtual_host_addr)->ctlhdr.status;
2056 else {
2057 if (bap_setup(ai, ai->fids[fid] & 0xffff, 4, BAP0) != SUCCESS)
2058 return;
2059 bap_read(ai, &status, 2, BAP0);
2060 }
2061 if (le16_to_cpu(status) & 2) /* Too many retries */
2062 ai->dev->stats.tx_aborted_errors++;
2063 if (le16_to_cpu(status) & 4) /* Transmit lifetime exceeded */
2064 ai->dev->stats.tx_heartbeat_errors++;
2065 if (le16_to_cpu(status) & 8) /* Aid fail */
2066 { }
2067 if (le16_to_cpu(status) & 0x10) /* MAC disabled */
2068 ai->dev->stats.tx_carrier_errors++;
2069 if (le16_to_cpu(status) & 0x20) /* Association lost */
2070 { }
2071 /* We produce a TXDROP event only for retry or lifetime
2072 * exceeded, because that's the only status that really mean
2073 * that this particular node went away.
2074 * Other errors means that *we* screwed up. - Jean II */
2075 if ((le16_to_cpu(status) & 2) ||
2076 (le16_to_cpu(status) & 4)) {
2077 union iwreq_data wrqu;
2078 char junk[0x18];
2079
2080 /* Faster to skip over useless data than to do
2081 * another bap_setup(). We are at offset 0x6 and
2082 * need to go to 0x18 and read 6 bytes - Jean II */
2083 bap_read(ai, (__le16 *) junk, 0x18, BAP0);
2084
2085 /* Copy 802.11 dest address.
2086 * We use the 802.11 header because the frame may
2087 * not be 802.3 or may be mangled...
2088 * In Ad-Hoc mode, it will be the node address.
2089 * In managed mode, it will be most likely the AP addr
2090 * User space will figure out how to convert it to
2091 * whatever it needs (IP address or else).
2092 * - Jean II */
2093 memcpy(wrqu.addr.sa_data, junk + 0x12, ETH_ALEN);
2094 wrqu.addr.sa_family = ARPHRD_ETHER;
2095
2096 /* Send event to user space */
2097 wireless_send_event(ai->dev, IWEVTXDROP, &wrqu, NULL);
2098 }
2099 }
2100
airo_end_xmit(struct net_device * dev,bool may_sleep)2101 static void airo_end_xmit(struct net_device *dev, bool may_sleep)
2102 {
2103 u16 status;
2104 int i;
2105 struct airo_info *priv = dev->ml_priv;
2106 struct sk_buff *skb = priv->xmit.skb;
2107 int fid = priv->xmit.fid;
2108 u32 *fids = priv->fids;
2109
2110 clear_bit(JOB_XMIT, &priv->jobs);
2111 clear_bit(FLAG_PENDING_XMIT, &priv->flags);
2112 status = transmit_802_3_packet(priv, fids[fid], skb->data, may_sleep);
2113 up(&priv->sem);
2114
2115 i = 0;
2116 if (status == SUCCESS) {
2117 netif_trans_update(dev);
2118 for (; i < MAX_FIDS / 2 && (priv->fids[i] & 0xffff0000); i++);
2119 } else {
2120 priv->fids[fid] &= 0xffff;
2121 dev->stats.tx_window_errors++;
2122 }
2123 if (i < MAX_FIDS / 2)
2124 netif_wake_queue(dev);
2125 dev_kfree_skb(skb);
2126 }
2127
airo_start_xmit(struct sk_buff * skb,struct net_device * dev)2128 static netdev_tx_t airo_start_xmit(struct sk_buff *skb,
2129 struct net_device *dev)
2130 {
2131 s16 len;
2132 int i, j;
2133 struct airo_info *priv = dev->ml_priv;
2134 u32 *fids = priv->fids;
2135
2136 if (skb == NULL) {
2137 airo_print_err(dev->name, "%s: skb == NULL!", __func__);
2138 return NETDEV_TX_OK;
2139 }
2140 if (skb_padto(skb, ETH_ZLEN)) {
2141 dev->stats.tx_dropped++;
2142 return NETDEV_TX_OK;
2143 }
2144
2145 /* Find a vacant FID */
2146 for (i = 0; i < MAX_FIDS / 2 && (fids[i] & 0xffff0000); i++);
2147 for (j = i + 1; j < MAX_FIDS / 2 && (fids[j] & 0xffff0000); j++);
2148
2149 if (j >= MAX_FIDS / 2) {
2150 netif_stop_queue(dev);
2151
2152 if (i == MAX_FIDS / 2) {
2153 dev->stats.tx_fifo_errors++;
2154 return NETDEV_TX_BUSY;
2155 }
2156 }
2157 /* check min length*/
2158 len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
2159 /* Mark fid as used & save length for later */
2160 fids[i] |= (len << 16);
2161 priv->xmit.skb = skb;
2162 priv->xmit.fid = i;
2163 if (down_trylock(&priv->sem) != 0) {
2164 set_bit(FLAG_PENDING_XMIT, &priv->flags);
2165 netif_stop_queue(dev);
2166 set_bit(JOB_XMIT, &priv->jobs);
2167 wake_up_interruptible(&priv->thr_wait);
2168 } else
2169 airo_end_xmit(dev, false);
2170 return NETDEV_TX_OK;
2171 }
2172
airo_end_xmit11(struct net_device * dev,bool may_sleep)2173 static void airo_end_xmit11(struct net_device *dev, bool may_sleep)
2174 {
2175 u16 status;
2176 int i;
2177 struct airo_info *priv = dev->ml_priv;
2178 struct sk_buff *skb = priv->xmit11.skb;
2179 int fid = priv->xmit11.fid;
2180 u32 *fids = priv->fids;
2181
2182 clear_bit(JOB_XMIT11, &priv->jobs);
2183 clear_bit(FLAG_PENDING_XMIT11, &priv->flags);
2184 status = transmit_802_11_packet(priv, fids[fid], skb->data, may_sleep);
2185 up(&priv->sem);
2186
2187 i = MAX_FIDS / 2;
2188 if (status == SUCCESS) {
2189 netif_trans_update(dev);
2190 for (; i < MAX_FIDS && (priv->fids[i] & 0xffff0000); i++);
2191 } else {
2192 priv->fids[fid] &= 0xffff;
2193 dev->stats.tx_window_errors++;
2194 }
2195 if (i < MAX_FIDS)
2196 netif_wake_queue(dev);
2197 dev_kfree_skb(skb);
2198 }
2199
airo_start_xmit11(struct sk_buff * skb,struct net_device * dev)2200 static netdev_tx_t airo_start_xmit11(struct sk_buff *skb,
2201 struct net_device *dev)
2202 {
2203 s16 len;
2204 int i, j;
2205 struct airo_info *priv = dev->ml_priv;
2206 u32 *fids = priv->fids;
2207
2208 if (test_bit(FLAG_MPI, &priv->flags)) {
2209 /* Not implemented yet for MPI350 */
2210 netif_stop_queue(dev);
2211 dev_kfree_skb_any(skb);
2212 return NETDEV_TX_OK;
2213 }
2214
2215 if (skb == NULL) {
2216 airo_print_err(dev->name, "%s: skb == NULL!", __func__);
2217 return NETDEV_TX_OK;
2218 }
2219 if (skb_padto(skb, ETH_ZLEN)) {
2220 dev->stats.tx_dropped++;
2221 return NETDEV_TX_OK;
2222 }
2223
2224 /* Find a vacant FID */
2225 for (i = MAX_FIDS / 2; i < MAX_FIDS && (fids[i] & 0xffff0000); i++);
2226 for (j = i + 1; j < MAX_FIDS && (fids[j] & 0xffff0000); j++);
2227
2228 if (j >= MAX_FIDS) {
2229 netif_stop_queue(dev);
2230
2231 if (i == MAX_FIDS) {
2232 dev->stats.tx_fifo_errors++;
2233 return NETDEV_TX_BUSY;
2234 }
2235 }
2236 /* check min length*/
2237 len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
2238 /* Mark fid as used & save length for later */
2239 fids[i] |= (len << 16);
2240 priv->xmit11.skb = skb;
2241 priv->xmit11.fid = i;
2242 if (down_trylock(&priv->sem) != 0) {
2243 set_bit(FLAG_PENDING_XMIT11, &priv->flags);
2244 netif_stop_queue(dev);
2245 set_bit(JOB_XMIT11, &priv->jobs);
2246 wake_up_interruptible(&priv->thr_wait);
2247 } else
2248 airo_end_xmit11(dev, false);
2249 return NETDEV_TX_OK;
2250 }
2251
airo_read_stats(struct net_device * dev)2252 static void airo_read_stats(struct net_device *dev)
2253 {
2254 struct airo_info *ai = dev->ml_priv;
2255 StatsRid stats_rid;
2256 __le32 *vals = stats_rid.vals;
2257
2258 clear_bit(JOB_STATS, &ai->jobs);
2259 if (ai->power.event) {
2260 up(&ai->sem);
2261 return;
2262 }
2263 readStatsRid(ai, &stats_rid, RID_STATS, 0);
2264 up(&ai->sem);
2265
2266 dev->stats.rx_packets = le32_to_cpu(vals[43]) + le32_to_cpu(vals[44]) +
2267 le32_to_cpu(vals[45]);
2268 dev->stats.tx_packets = le32_to_cpu(vals[39]) + le32_to_cpu(vals[40]) +
2269 le32_to_cpu(vals[41]);
2270 dev->stats.rx_bytes = le32_to_cpu(vals[92]);
2271 dev->stats.tx_bytes = le32_to_cpu(vals[91]);
2272 dev->stats.rx_errors = le32_to_cpu(vals[0]) + le32_to_cpu(vals[2]) +
2273 le32_to_cpu(vals[3]) + le32_to_cpu(vals[4]);
2274 dev->stats.tx_errors = le32_to_cpu(vals[42]) +
2275 dev->stats.tx_fifo_errors;
2276 dev->stats.multicast = le32_to_cpu(vals[43]);
2277 dev->stats.collisions = le32_to_cpu(vals[89]);
2278
2279 /* detailed rx_errors: */
2280 dev->stats.rx_length_errors = le32_to_cpu(vals[3]);
2281 dev->stats.rx_crc_errors = le32_to_cpu(vals[4]);
2282 dev->stats.rx_frame_errors = le32_to_cpu(vals[2]);
2283 dev->stats.rx_fifo_errors = le32_to_cpu(vals[0]);
2284 }
2285
airo_get_stats(struct net_device * dev)2286 static struct net_device_stats *airo_get_stats(struct net_device *dev)
2287 {
2288 struct airo_info *local = dev->ml_priv;
2289
2290 if (!test_bit(JOB_STATS, &local->jobs)) {
2291 set_bit(JOB_STATS, &local->jobs);
2292 wake_up_interruptible(&local->thr_wait);
2293 }
2294
2295 return &dev->stats;
2296 }
2297
airo_set_promisc(struct airo_info * ai,bool may_sleep)2298 static void airo_set_promisc(struct airo_info *ai, bool may_sleep)
2299 {
2300 Cmd cmd;
2301 Resp rsp;
2302
2303 memset(&cmd, 0, sizeof(cmd));
2304 cmd.cmd = CMD_SETMODE;
2305 clear_bit(JOB_PROMISC, &ai->jobs);
2306 cmd.parm0=(ai->flags&IFF_PROMISC) ? PROMISC : NOPROMISC;
2307 issuecommand(ai, &cmd, &rsp, may_sleep);
2308 up(&ai->sem);
2309 }
2310
airo_set_multicast_list(struct net_device * dev)2311 static void airo_set_multicast_list(struct net_device *dev)
2312 {
2313 struct airo_info *ai = dev->ml_priv;
2314
2315 if ((dev->flags ^ ai->flags) & IFF_PROMISC) {
2316 change_bit(FLAG_PROMISC, &ai->flags);
2317 if (down_trylock(&ai->sem) != 0) {
2318 set_bit(JOB_PROMISC, &ai->jobs);
2319 wake_up_interruptible(&ai->thr_wait);
2320 } else
2321 airo_set_promisc(ai, false);
2322 }
2323
2324 if ((dev->flags&IFF_ALLMULTI) || !netdev_mc_empty(dev)) {
2325 /* Turn on multicast. (Should be already setup...) */
2326 }
2327 }
2328
airo_set_mac_address(struct net_device * dev,void * p)2329 static int airo_set_mac_address(struct net_device *dev, void *p)
2330 {
2331 struct airo_info *ai = dev->ml_priv;
2332 struct sockaddr *addr = p;
2333
2334 readConfigRid(ai, 1);
2335 memcpy (ai->config.macAddr, addr->sa_data, dev->addr_len);
2336 set_bit (FLAG_COMMIT, &ai->flags);
2337 disable_MAC(ai, 1);
2338 writeConfigRid (ai, 1);
2339 enable_MAC(ai, 1);
2340 memcpy (ai->dev->dev_addr, addr->sa_data, dev->addr_len);
2341 if (ai->wifidev)
2342 memcpy (ai->wifidev->dev_addr, addr->sa_data, dev->addr_len);
2343 return 0;
2344 }
2345
2346 static LIST_HEAD(airo_devices);
2347
add_airo_dev(struct airo_info * ai)2348 static void add_airo_dev(struct airo_info *ai)
2349 {
2350 /* Upper layers already keep track of PCI devices,
2351 * so we only need to remember our non-PCI cards. */
2352 if (!ai->pci)
2353 list_add_tail(&ai->dev_list, &airo_devices);
2354 }
2355
del_airo_dev(struct airo_info * ai)2356 static void del_airo_dev(struct airo_info *ai)
2357 {
2358 if (!ai->pci)
2359 list_del(&ai->dev_list);
2360 }
2361
airo_close(struct net_device * dev)2362 static int airo_close(struct net_device *dev)
2363 {
2364 struct airo_info *ai = dev->ml_priv;
2365
2366 netif_stop_queue(dev);
2367
2368 if (ai->wifidev != dev) {
2369 #ifdef POWER_ON_DOWN
2370 /* Shut power to the card. The idea is that the user can save
2371 * power when he doesn't need the card with "ifconfig down".
2372 * That's the method that is most friendly towards the network
2373 * stack (i.e. the network stack won't try to broadcast
2374 * anything on the interface and routes are gone. Jean II */
2375 set_bit(FLAG_RADIO_DOWN, &ai->flags);
2376 disable_MAC(ai, 1);
2377 #endif
2378 disable_interrupts(ai);
2379
2380 free_irq(dev->irq, dev);
2381
2382 set_bit(JOB_DIE, &ai->jobs);
2383 kthread_stop(ai->airo_thread_task);
2384 }
2385 return 0;
2386 }
2387
stop_airo_card(struct net_device * dev,int freeres)2388 void stop_airo_card(struct net_device *dev, int freeres)
2389 {
2390 struct airo_info *ai = dev->ml_priv;
2391
2392 set_bit(FLAG_RADIO_DOWN, &ai->flags);
2393 disable_MAC(ai, 1);
2394 disable_interrupts(ai);
2395 takedown_proc_entry(dev, ai);
2396 if (test_bit(FLAG_REGISTERED, &ai->flags)) {
2397 unregister_netdev(dev);
2398 if (ai->wifidev) {
2399 unregister_netdev(ai->wifidev);
2400 free_netdev(ai->wifidev);
2401 ai->wifidev = NULL;
2402 }
2403 clear_bit(FLAG_REGISTERED, &ai->flags);
2404 }
2405 /*
2406 * Clean out tx queue
2407 */
2408 if (test_bit(FLAG_MPI, &ai->flags) && !skb_queue_empty(&ai->txq)) {
2409 struct sk_buff *skb = NULL;
2410 for (;(skb = skb_dequeue(&ai->txq));)
2411 dev_kfree_skb(skb);
2412 }
2413
2414 airo_networks_free (ai);
2415
2416 kfree(ai->flash);
2417 kfree(ai->rssi);
2418 kfree(ai->SSID);
2419 if (freeres) {
2420 /* PCMCIA frees this stuff, so only for PCI and ISA */
2421 release_region(dev->base_addr, 64);
2422 if (test_bit(FLAG_MPI, &ai->flags)) {
2423 if (ai->pci)
2424 mpi_unmap_card(ai->pci);
2425 if (ai->pcimem)
2426 iounmap(ai->pcimem);
2427 if (ai->pciaux)
2428 iounmap(ai->pciaux);
2429 dma_free_coherent(&ai->pci->dev, PCI_SHARED_LEN,
2430 ai->shared, ai->shared_dma);
2431 }
2432 }
2433 crypto_free_sync_skcipher(ai->tfm);
2434 del_airo_dev(ai);
2435 free_netdev(dev);
2436 }
2437
2438 EXPORT_SYMBOL(stop_airo_card);
2439
wll_header_parse(const struct sk_buff * skb,unsigned char * haddr)2440 static int wll_header_parse(const struct sk_buff *skb, unsigned char *haddr)
2441 {
2442 memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN);
2443 return ETH_ALEN;
2444 }
2445
mpi_unmap_card(struct pci_dev * pci)2446 static void mpi_unmap_card(struct pci_dev *pci)
2447 {
2448 unsigned long mem_start = pci_resource_start(pci, 1);
2449 unsigned long mem_len = pci_resource_len(pci, 1);
2450 unsigned long aux_start = pci_resource_start(pci, 2);
2451 unsigned long aux_len = AUXMEMSIZE;
2452
2453 release_mem_region(aux_start, aux_len);
2454 release_mem_region(mem_start, mem_len);
2455 }
2456
2457 /*************************************************************
2458 * This routine assumes that descriptors have been setup .
2459 * Run at insmod time or after reset when the descriptors
2460 * have been initialized . Returns 0 if all is well nz
2461 * otherwise . Does not allocate memory but sets up card
2462 * using previously allocated descriptors.
2463 */
mpi_init_descriptors(struct airo_info * ai)2464 static int mpi_init_descriptors (struct airo_info *ai)
2465 {
2466 Cmd cmd;
2467 Resp rsp;
2468 int i;
2469 int rc = SUCCESS;
2470
2471 /* Alloc card RX descriptors */
2472 netif_stop_queue(ai->dev);
2473
2474 memset(&rsp, 0, sizeof(rsp));
2475 memset(&cmd, 0, sizeof(cmd));
2476
2477 cmd.cmd = CMD_ALLOCATEAUX;
2478 cmd.parm0 = FID_RX;
2479 cmd.parm1 = (ai->rxfids[0].card_ram_off - ai->pciaux);
2480 cmd.parm2 = MPI_MAX_FIDS;
2481 rc = issuecommand(ai, &cmd, &rsp, true);
2482 if (rc != SUCCESS) {
2483 airo_print_err(ai->dev->name, "Couldn't allocate RX FID");
2484 return rc;
2485 }
2486
2487 for (i = 0; i<MPI_MAX_FIDS; i++) {
2488 memcpy_toio(ai->rxfids[i].card_ram_off,
2489 &ai->rxfids[i].rx_desc, sizeof(RxFid));
2490 }
2491
2492 /* Alloc card TX descriptors */
2493
2494 memset(&rsp, 0, sizeof(rsp));
2495 memset(&cmd, 0, sizeof(cmd));
2496
2497 cmd.cmd = CMD_ALLOCATEAUX;
2498 cmd.parm0 = FID_TX;
2499 cmd.parm1 = (ai->txfids[0].card_ram_off - ai->pciaux);
2500 cmd.parm2 = MPI_MAX_FIDS;
2501
2502 for (i = 0; i<MPI_MAX_FIDS; i++) {
2503 ai->txfids[i].tx_desc.valid = 1;
2504 memcpy_toio(ai->txfids[i].card_ram_off,
2505 &ai->txfids[i].tx_desc, sizeof(TxFid));
2506 }
2507 ai->txfids[i-1].tx_desc.eoc = 1; /* Last descriptor has EOC set */
2508
2509 rc = issuecommand(ai, &cmd, &rsp, true);
2510 if (rc != SUCCESS) {
2511 airo_print_err(ai->dev->name, "Couldn't allocate TX FID");
2512 return rc;
2513 }
2514
2515 /* Alloc card Rid descriptor */
2516 memset(&rsp, 0, sizeof(rsp));
2517 memset(&cmd, 0, sizeof(cmd));
2518
2519 cmd.cmd = CMD_ALLOCATEAUX;
2520 cmd.parm0 = RID_RW;
2521 cmd.parm1 = (ai->config_desc.card_ram_off - ai->pciaux);
2522 cmd.parm2 = 1; /* Magic number... */
2523 rc = issuecommand(ai, &cmd, &rsp, true);
2524 if (rc != SUCCESS) {
2525 airo_print_err(ai->dev->name, "Couldn't allocate RID");
2526 return rc;
2527 }
2528
2529 memcpy_toio(ai->config_desc.card_ram_off,
2530 &ai->config_desc.rid_desc, sizeof(Rid));
2531
2532 return rc;
2533 }
2534
2535 /*
2536 * We are setting up three things here:
2537 * 1) Map AUX memory for descriptors: Rid, TxFid, or RxFid.
2538 * 2) Map PCI memory for issuing commands.
2539 * 3) Allocate memory (shared) to send and receive ethernet frames.
2540 */
mpi_map_card(struct airo_info * ai,struct pci_dev * pci)2541 static int mpi_map_card(struct airo_info *ai, struct pci_dev *pci)
2542 {
2543 unsigned long mem_start, mem_len, aux_start, aux_len;
2544 int rc = -1;
2545 int i;
2546 dma_addr_t busaddroff;
2547 unsigned char *vpackoff;
2548 unsigned char __iomem *pciaddroff;
2549
2550 mem_start = pci_resource_start(pci, 1);
2551 mem_len = pci_resource_len(pci, 1);
2552 aux_start = pci_resource_start(pci, 2);
2553 aux_len = AUXMEMSIZE;
2554
2555 if (!request_mem_region(mem_start, mem_len, DRV_NAME)) {
2556 airo_print_err("", "Couldn't get region %x[%x]",
2557 (int)mem_start, (int)mem_len);
2558 goto out;
2559 }
2560 if (!request_mem_region(aux_start, aux_len, DRV_NAME)) {
2561 airo_print_err("", "Couldn't get region %x[%x]",
2562 (int)aux_start, (int)aux_len);
2563 goto free_region1;
2564 }
2565
2566 ai->pcimem = ioremap(mem_start, mem_len);
2567 if (!ai->pcimem) {
2568 airo_print_err("", "Couldn't map region %x[%x]",
2569 (int)mem_start, (int)mem_len);
2570 goto free_region2;
2571 }
2572 ai->pciaux = ioremap(aux_start, aux_len);
2573 if (!ai->pciaux) {
2574 airo_print_err("", "Couldn't map region %x[%x]",
2575 (int)aux_start, (int)aux_len);
2576 goto free_memmap;
2577 }
2578
2579 /* Reserve PKTSIZE for each fid and 2K for the Rids */
2580 ai->shared = dma_alloc_coherent(&pci->dev, PCI_SHARED_LEN,
2581 &ai->shared_dma, GFP_KERNEL);
2582 if (!ai->shared) {
2583 airo_print_err("", "Couldn't alloc_coherent %d",
2584 PCI_SHARED_LEN);
2585 goto free_auxmap;
2586 }
2587
2588 /*
2589 * Setup descriptor RX, TX, CONFIG
2590 */
2591 busaddroff = ai->shared_dma;
2592 pciaddroff = ai->pciaux + AUX_OFFSET;
2593 vpackoff = ai->shared;
2594
2595 /* RX descriptor setup */
2596 for (i = 0; i < MPI_MAX_FIDS; i++) {
2597 ai->rxfids[i].pending = 0;
2598 ai->rxfids[i].card_ram_off = pciaddroff;
2599 ai->rxfids[i].virtual_host_addr = vpackoff;
2600 ai->rxfids[i].rx_desc.host_addr = busaddroff;
2601 ai->rxfids[i].rx_desc.valid = 1;
2602 ai->rxfids[i].rx_desc.len = PKTSIZE;
2603 ai->rxfids[i].rx_desc.rdy = 0;
2604
2605 pciaddroff += sizeof(RxFid);
2606 busaddroff += PKTSIZE;
2607 vpackoff += PKTSIZE;
2608 }
2609
2610 /* TX descriptor setup */
2611 for (i = 0; i < MPI_MAX_FIDS; i++) {
2612 ai->txfids[i].card_ram_off = pciaddroff;
2613 ai->txfids[i].virtual_host_addr = vpackoff;
2614 ai->txfids[i].tx_desc.valid = 1;
2615 ai->txfids[i].tx_desc.host_addr = busaddroff;
2616 memcpy(ai->txfids[i].virtual_host_addr,
2617 &wifictlhdr8023, sizeof(wifictlhdr8023));
2618
2619 pciaddroff += sizeof(TxFid);
2620 busaddroff += PKTSIZE;
2621 vpackoff += PKTSIZE;
2622 }
2623 ai->txfids[i-1].tx_desc.eoc = 1; /* Last descriptor has EOC set */
2624
2625 /* Rid descriptor setup */
2626 ai->config_desc.card_ram_off = pciaddroff;
2627 ai->config_desc.virtual_host_addr = vpackoff;
2628 ai->config_desc.rid_desc.host_addr = busaddroff;
2629 ai->ridbus = busaddroff;
2630 ai->config_desc.rid_desc.rid = 0;
2631 ai->config_desc.rid_desc.len = RIDSIZE;
2632 ai->config_desc.rid_desc.valid = 1;
2633 pciaddroff += sizeof(Rid);
2634 busaddroff += RIDSIZE;
2635 vpackoff += RIDSIZE;
2636
2637 /* Tell card about descriptors */
2638 if (mpi_init_descriptors (ai) != SUCCESS)
2639 goto free_shared;
2640
2641 return 0;
2642 free_shared:
2643 dma_free_coherent(&pci->dev, PCI_SHARED_LEN, ai->shared,
2644 ai->shared_dma);
2645 free_auxmap:
2646 iounmap(ai->pciaux);
2647 free_memmap:
2648 iounmap(ai->pcimem);
2649 free_region2:
2650 release_mem_region(aux_start, aux_len);
2651 free_region1:
2652 release_mem_region(mem_start, mem_len);
2653 out:
2654 return rc;
2655 }
2656
2657 static const struct header_ops airo_header_ops = {
2658 .parse = wll_header_parse,
2659 };
2660
2661 static const struct net_device_ops airo11_netdev_ops = {
2662 .ndo_open = airo_open,
2663 .ndo_stop = airo_close,
2664 .ndo_start_xmit = airo_start_xmit11,
2665 .ndo_get_stats = airo_get_stats,
2666 .ndo_set_mac_address = airo_set_mac_address,
2667 .ndo_siocdevprivate = airo_siocdevprivate,
2668 };
2669
wifi_setup(struct net_device * dev)2670 static void wifi_setup(struct net_device *dev)
2671 {
2672 dev->netdev_ops = &airo11_netdev_ops;
2673 dev->header_ops = &airo_header_ops;
2674 dev->wireless_handlers = &airo_handler_def;
2675
2676 dev->type = ARPHRD_IEEE80211;
2677 dev->hard_header_len = ETH_HLEN;
2678 dev->mtu = AIRO_DEF_MTU;
2679 dev->min_mtu = 68;
2680 dev->max_mtu = MIC_MSGLEN_MAX;
2681 dev->addr_len = ETH_ALEN;
2682 dev->tx_queue_len = 100;
2683
2684 eth_broadcast_addr(dev->broadcast);
2685
2686 dev->flags = IFF_BROADCAST|IFF_MULTICAST;
2687 }
2688
init_wifidev(struct airo_info * ai,struct net_device * ethdev)2689 static struct net_device *init_wifidev(struct airo_info *ai,
2690 struct net_device *ethdev)
2691 {
2692 int err;
2693 struct net_device *dev = alloc_netdev(0, "wifi%d", NET_NAME_UNKNOWN,
2694 wifi_setup);
2695 if (!dev)
2696 return NULL;
2697 dev->ml_priv = ethdev->ml_priv;
2698 dev->irq = ethdev->irq;
2699 dev->base_addr = ethdev->base_addr;
2700 dev->wireless_data = ethdev->wireless_data;
2701 SET_NETDEV_DEV(dev, ethdev->dev.parent);
2702 eth_hw_addr_inherit(dev, ethdev);
2703 err = register_netdev(dev);
2704 if (err<0) {
2705 free_netdev(dev);
2706 return NULL;
2707 }
2708 return dev;
2709 }
2710
reset_card(struct net_device * dev,int lock)2711 static int reset_card(struct net_device *dev, int lock)
2712 {
2713 struct airo_info *ai = dev->ml_priv;
2714
2715 if (lock && down_interruptible(&ai->sem))
2716 return -1;
2717 waitbusy (ai);
2718 OUT4500(ai, COMMAND, CMD_SOFTRESET);
2719 msleep(200);
2720 waitbusy (ai);
2721 msleep(200);
2722 if (lock)
2723 up(&ai->sem);
2724 return 0;
2725 }
2726
2727 #define AIRO_MAX_NETWORK_COUNT 64
airo_networks_allocate(struct airo_info * ai)2728 static int airo_networks_allocate(struct airo_info *ai)
2729 {
2730 if (ai->networks)
2731 return 0;
2732
2733 ai->networks = kcalloc(AIRO_MAX_NETWORK_COUNT, sizeof(BSSListElement),
2734 GFP_KERNEL);
2735 if (!ai->networks) {
2736 airo_print_warn("", "Out of memory allocating beacons");
2737 return -ENOMEM;
2738 }
2739
2740 return 0;
2741 }
2742
airo_networks_free(struct airo_info * ai)2743 static void airo_networks_free(struct airo_info *ai)
2744 {
2745 kfree(ai->networks);
2746 ai->networks = NULL;
2747 }
2748
airo_networks_initialize(struct airo_info * ai)2749 static void airo_networks_initialize(struct airo_info *ai)
2750 {
2751 int i;
2752
2753 INIT_LIST_HEAD(&ai->network_free_list);
2754 INIT_LIST_HEAD(&ai->network_list);
2755 for (i = 0; i < AIRO_MAX_NETWORK_COUNT; i++)
2756 list_add_tail(&ai->networks[i].list,
2757 &ai->network_free_list);
2758 }
2759
2760 static const struct net_device_ops airo_netdev_ops = {
2761 .ndo_open = airo_open,
2762 .ndo_stop = airo_close,
2763 .ndo_start_xmit = airo_start_xmit,
2764 .ndo_get_stats = airo_get_stats,
2765 .ndo_set_rx_mode = airo_set_multicast_list,
2766 .ndo_set_mac_address = airo_set_mac_address,
2767 .ndo_siocdevprivate = airo_siocdevprivate,
2768 .ndo_validate_addr = eth_validate_addr,
2769 };
2770
2771 static const struct net_device_ops mpi_netdev_ops = {
2772 .ndo_open = airo_open,
2773 .ndo_stop = airo_close,
2774 .ndo_start_xmit = mpi_start_xmit,
2775 .ndo_get_stats = airo_get_stats,
2776 .ndo_set_rx_mode = airo_set_multicast_list,
2777 .ndo_set_mac_address = airo_set_mac_address,
2778 .ndo_siocdevprivate = airo_siocdevprivate,
2779 .ndo_validate_addr = eth_validate_addr,
2780 };
2781
2782
_init_airo_card(unsigned short irq,int port,int is_pcmcia,struct pci_dev * pci,struct device * dmdev)2783 static struct net_device *_init_airo_card(unsigned short irq, int port,
2784 int is_pcmcia, struct pci_dev *pci,
2785 struct device *dmdev)
2786 {
2787 struct net_device *dev;
2788 struct airo_info *ai;
2789 int i, rc;
2790 CapabilityRid cap_rid;
2791
2792 /* Create the network device object. */
2793 dev = alloc_netdev(sizeof(*ai), "", NET_NAME_UNKNOWN, ether_setup);
2794 if (!dev) {
2795 airo_print_err("", "Couldn't alloc_etherdev");
2796 return NULL;
2797 }
2798
2799 ai = dev->ml_priv = netdev_priv(dev);
2800 ai->wifidev = NULL;
2801 ai->flags = 1 << FLAG_RADIO_DOWN;
2802 ai->jobs = 0;
2803 ai->dev = dev;
2804 if (pci && (pci->device == 0x5000 || pci->device == 0xa504)) {
2805 airo_print_dbg("", "Found an MPI350 card");
2806 set_bit(FLAG_MPI, &ai->flags);
2807 }
2808 spin_lock_init(&ai->aux_lock);
2809 sema_init(&ai->sem, 1);
2810 ai->config.len = 0;
2811 ai->pci = pci;
2812 init_waitqueue_head (&ai->thr_wait);
2813 ai->tfm = NULL;
2814 add_airo_dev(ai);
2815 ai->APList.len = cpu_to_le16(sizeof(struct APListRid));
2816
2817 if (airo_networks_allocate (ai))
2818 goto err_out_free;
2819 airo_networks_initialize (ai);
2820
2821 skb_queue_head_init (&ai->txq);
2822
2823 /* The Airo-specific entries in the device structure. */
2824 if (test_bit(FLAG_MPI,&ai->flags))
2825 dev->netdev_ops = &mpi_netdev_ops;
2826 else
2827 dev->netdev_ops = &airo_netdev_ops;
2828 dev->wireless_handlers = &airo_handler_def;
2829 ai->wireless_data.spy_data = &ai->spy_data;
2830 dev->wireless_data = &ai->wireless_data;
2831 dev->irq = irq;
2832 dev->base_addr = port;
2833 dev->priv_flags &= ~IFF_TX_SKB_SHARING;
2834 dev->max_mtu = MIC_MSGLEN_MAX;
2835
2836 SET_NETDEV_DEV(dev, dmdev);
2837
2838 reset_card (dev, 1);
2839 msleep(400);
2840
2841 if (!is_pcmcia) {
2842 if (!request_region(dev->base_addr, 64, DRV_NAME)) {
2843 rc = -EBUSY;
2844 airo_print_err(dev->name, "Couldn't request region");
2845 goto err_out_nets;
2846 }
2847 }
2848
2849 if (test_bit(FLAG_MPI,&ai->flags)) {
2850 if (mpi_map_card(ai, pci)) {
2851 airo_print_err("", "Could not map memory");
2852 goto err_out_res;
2853 }
2854 }
2855
2856 if (probe) {
2857 if (setup_card(ai, dev->dev_addr, 1) != SUCCESS) {
2858 airo_print_err(dev->name, "MAC could not be enabled");
2859 rc = -EIO;
2860 goto err_out_map;
2861 }
2862 } else if (!test_bit(FLAG_MPI,&ai->flags)) {
2863 ai->bap_read = fast_bap_read;
2864 set_bit(FLAG_FLASHING, &ai->flags);
2865 }
2866
2867 strcpy(dev->name, "eth%d");
2868 rc = register_netdev(dev);
2869 if (rc) {
2870 airo_print_err(dev->name, "Couldn't register_netdev");
2871 goto err_out_map;
2872 }
2873 ai->wifidev = init_wifidev(ai, dev);
2874 if (!ai->wifidev)
2875 goto err_out_reg;
2876
2877 rc = readCapabilityRid(ai, &cap_rid, 1);
2878 if (rc != SUCCESS) {
2879 rc = -EIO;
2880 goto err_out_wifi;
2881 }
2882 /* WEP capability discovery */
2883 ai->wep_capable = (cap_rid.softCap & cpu_to_le16(0x02)) ? 1 : 0;
2884 ai->max_wep_idx = (cap_rid.softCap & cpu_to_le16(0x80)) ? 3 : 0;
2885
2886 airo_print_info(dev->name, "Firmware version %x.%x.%02d",
2887 ((le16_to_cpu(cap_rid.softVer) >> 8) & 0xF),
2888 (le16_to_cpu(cap_rid.softVer) & 0xFF),
2889 le16_to_cpu(cap_rid.softSubVer));
2890
2891 /* Test for WPA support */
2892 /* Only firmware versions 5.30.17 or better can do WPA */
2893 if (le16_to_cpu(cap_rid.softVer) > 0x530
2894 || (le16_to_cpu(cap_rid.softVer) == 0x530
2895 && le16_to_cpu(cap_rid.softSubVer) >= 17)) {
2896 airo_print_info(ai->dev->name, "WPA supported.");
2897
2898 set_bit(FLAG_WPA_CAPABLE, &ai->flags);
2899 ai->bssListFirst = RID_WPA_BSSLISTFIRST;
2900 ai->bssListNext = RID_WPA_BSSLISTNEXT;
2901 ai->bssListRidLen = sizeof(BSSListRid);
2902 } else {
2903 airo_print_info(ai->dev->name, "WPA unsupported with firmware "
2904 "versions older than 5.30.17.");
2905
2906 ai->bssListFirst = RID_BSSLISTFIRST;
2907 ai->bssListNext = RID_BSSLISTNEXT;
2908 ai->bssListRidLen = sizeof(BSSListRid) - sizeof(BSSListRidExtra);
2909 }
2910
2911 set_bit(FLAG_REGISTERED,&ai->flags);
2912 airo_print_info(dev->name, "MAC enabled %pM", dev->dev_addr);
2913
2914 /* Allocate the transmit buffers */
2915 if (probe && !test_bit(FLAG_MPI,&ai->flags))
2916 for (i = 0; i < MAX_FIDS; i++)
2917 ai->fids[i] = transmit_allocate(ai, AIRO_DEF_MTU, i>=MAX_FIDS/2);
2918
2919 if (setup_proc_entry(dev, dev->ml_priv) < 0)
2920 goto err_out_wifi;
2921
2922 return dev;
2923
2924 err_out_wifi:
2925 unregister_netdev(ai->wifidev);
2926 free_netdev(ai->wifidev);
2927 err_out_reg:
2928 unregister_netdev(dev);
2929 err_out_map:
2930 if (test_bit(FLAG_MPI,&ai->flags) && pci) {
2931 dma_free_coherent(&pci->dev, PCI_SHARED_LEN, ai->shared,
2932 ai->shared_dma);
2933 iounmap(ai->pciaux);
2934 iounmap(ai->pcimem);
2935 mpi_unmap_card(ai->pci);
2936 }
2937 err_out_res:
2938 if (!is_pcmcia)
2939 release_region(dev->base_addr, 64);
2940 err_out_nets:
2941 airo_networks_free(ai);
2942 err_out_free:
2943 del_airo_dev(ai);
2944 free_netdev(dev);
2945 return NULL;
2946 }
2947
init_airo_card(unsigned short irq,int port,int is_pcmcia,struct device * dmdev)2948 struct net_device *init_airo_card(unsigned short irq, int port, int is_pcmcia,
2949 struct device *dmdev)
2950 {
2951 return _init_airo_card (irq, port, is_pcmcia, NULL, dmdev);
2952 }
2953
2954 EXPORT_SYMBOL(init_airo_card);
2955
waitbusy(struct airo_info * ai)2956 static int waitbusy (struct airo_info *ai)
2957 {
2958 int delay = 0;
2959 while ((IN4500(ai, COMMAND) & COMMAND_BUSY) && (delay < 10000)) {
2960 udelay (10);
2961 if ((++delay % 20) == 0)
2962 OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
2963 }
2964 return delay < 10000;
2965 }
2966
reset_airo_card(struct net_device * dev)2967 int reset_airo_card(struct net_device *dev)
2968 {
2969 int i;
2970 struct airo_info *ai = dev->ml_priv;
2971
2972 if (reset_card (dev, 1))
2973 return -1;
2974
2975 if (setup_card(ai, dev->dev_addr, 1) != SUCCESS) {
2976 airo_print_err(dev->name, "MAC could not be enabled");
2977 return -1;
2978 }
2979 airo_print_info(dev->name, "MAC enabled %pM", dev->dev_addr);
2980 /* Allocate the transmit buffers if needed */
2981 if (!test_bit(FLAG_MPI,&ai->flags))
2982 for (i = 0; i < MAX_FIDS; i++)
2983 ai->fids[i] = transmit_allocate (ai, AIRO_DEF_MTU, i>=MAX_FIDS/2);
2984
2985 enable_interrupts(ai);
2986 netif_wake_queue(dev);
2987 return 0;
2988 }
2989
2990 EXPORT_SYMBOL(reset_airo_card);
2991
airo_send_event(struct net_device * dev)2992 static void airo_send_event(struct net_device *dev)
2993 {
2994 struct airo_info *ai = dev->ml_priv;
2995 union iwreq_data wrqu;
2996 StatusRid status_rid;
2997
2998 clear_bit(JOB_EVENT, &ai->jobs);
2999 PC4500_readrid(ai, RID_STATUS, &status_rid, sizeof(status_rid), 0);
3000 up(&ai->sem);
3001 wrqu.data.length = 0;
3002 wrqu.data.flags = 0;
3003 memcpy(wrqu.ap_addr.sa_data, status_rid.bssid[0], ETH_ALEN);
3004 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3005
3006 /* Send event to user space */
3007 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
3008 }
3009
airo_process_scan_results(struct airo_info * ai)3010 static void airo_process_scan_results (struct airo_info *ai)
3011 {
3012 union iwreq_data wrqu;
3013 BSSListRid bss;
3014 int rc;
3015 BSSListElement * loop_net;
3016 BSSListElement * tmp_net;
3017
3018 /* Blow away current list of scan results */
3019 list_for_each_entry_safe (loop_net, tmp_net, &ai->network_list, list) {
3020 list_move_tail (&loop_net->list, &ai->network_free_list);
3021 /* Don't blow away ->list, just BSS data */
3022 memset (loop_net, 0, sizeof (loop_net->bss));
3023 }
3024
3025 /* Try to read the first entry of the scan result */
3026 rc = PC4500_readrid(ai, ai->bssListFirst, &bss, ai->bssListRidLen, 0);
3027 if ((rc) || (bss.index == cpu_to_le16(0xffff))) {
3028 /* No scan results */
3029 goto out;
3030 }
3031
3032 /* Read and parse all entries */
3033 tmp_net = NULL;
3034 while ((!rc) && (bss.index != cpu_to_le16(0xffff))) {
3035 /* Grab a network off the free list */
3036 if (!list_empty(&ai->network_free_list)) {
3037 tmp_net = list_entry(ai->network_free_list.next,
3038 BSSListElement, list);
3039 list_del(ai->network_free_list.next);
3040 }
3041
3042 if (tmp_net != NULL) {
3043 memcpy(tmp_net, &bss, sizeof(tmp_net->bss));
3044 list_add_tail(&tmp_net->list, &ai->network_list);
3045 tmp_net = NULL;
3046 }
3047
3048 /* Read next entry */
3049 rc = PC4500_readrid(ai, ai->bssListNext,
3050 &bss, ai->bssListRidLen, 0);
3051 }
3052
3053 out:
3054 /* write APList back (we cleared it in airo_set_scan) */
3055 disable_MAC(ai, 2);
3056 writeAPListRid(ai, &ai->APList, 0);
3057 enable_MAC(ai, 0);
3058
3059 ai->scan_timeout = 0;
3060 clear_bit(JOB_SCAN_RESULTS, &ai->jobs);
3061 up(&ai->sem);
3062
3063 /* Send an empty event to user space.
3064 * We don't send the received data on
3065 * the event because it would require
3066 * us to do complex transcoding, and
3067 * we want to minimise the work done in
3068 * the irq handler. Use a request to
3069 * extract the data - Jean II */
3070 wrqu.data.length = 0;
3071 wrqu.data.flags = 0;
3072 wireless_send_event(ai->dev, SIOCGIWSCAN, &wrqu, NULL);
3073 }
3074
airo_thread(void * data)3075 static int airo_thread(void *data)
3076 {
3077 struct net_device *dev = data;
3078 struct airo_info *ai = dev->ml_priv;
3079 int locked;
3080
3081 set_freezable();
3082 while (1) {
3083 /* make swsusp happy with our thread */
3084 try_to_freeze();
3085
3086 if (test_bit(JOB_DIE, &ai->jobs))
3087 break;
3088
3089 if (ai->jobs) {
3090 locked = down_interruptible(&ai->sem);
3091 } else {
3092 wait_queue_entry_t wait;
3093
3094 init_waitqueue_entry(&wait, current);
3095 add_wait_queue(&ai->thr_wait, &wait);
3096 for (;;) {
3097 set_current_state(TASK_INTERRUPTIBLE);
3098 if (ai->jobs)
3099 break;
3100 if (ai->expires || ai->scan_timeout) {
3101 if (ai->scan_timeout &&
3102 time_after_eq(jiffies, ai->scan_timeout)) {
3103 set_bit(JOB_SCAN_RESULTS, &ai->jobs);
3104 break;
3105 } else if (ai->expires &&
3106 time_after_eq(jiffies, ai->expires)) {
3107 set_bit(JOB_AUTOWEP, &ai->jobs);
3108 break;
3109 }
3110 if (!kthread_should_stop() &&
3111 !freezing(current)) {
3112 unsigned long wake_at;
3113 if (!ai->expires || !ai->scan_timeout) {
3114 wake_at = max(ai->expires,
3115 ai->scan_timeout);
3116 } else {
3117 wake_at = min(ai->expires,
3118 ai->scan_timeout);
3119 }
3120 schedule_timeout(wake_at - jiffies);
3121 continue;
3122 }
3123 } else if (!kthread_should_stop() &&
3124 !freezing(current)) {
3125 schedule();
3126 continue;
3127 }
3128 break;
3129 }
3130 __set_current_state(TASK_RUNNING);
3131 remove_wait_queue(&ai->thr_wait, &wait);
3132 locked = 1;
3133 }
3134
3135 if (locked)
3136 continue;
3137
3138 if (test_bit(JOB_DIE, &ai->jobs)) {
3139 up(&ai->sem);
3140 break;
3141 }
3142
3143 if (ai->power.event || test_bit(FLAG_FLASHING, &ai->flags)) {
3144 up(&ai->sem);
3145 continue;
3146 }
3147
3148 if (test_bit(JOB_XMIT, &ai->jobs))
3149 airo_end_xmit(dev, true);
3150 else if (test_bit(JOB_XMIT11, &ai->jobs))
3151 airo_end_xmit11(dev, true);
3152 else if (test_bit(JOB_STATS, &ai->jobs))
3153 airo_read_stats(dev);
3154 else if (test_bit(JOB_PROMISC, &ai->jobs))
3155 airo_set_promisc(ai, true);
3156 else if (test_bit(JOB_MIC, &ai->jobs))
3157 micinit(ai);
3158 else if (test_bit(JOB_EVENT, &ai->jobs))
3159 airo_send_event(dev);
3160 else if (test_bit(JOB_AUTOWEP, &ai->jobs))
3161 timer_func(dev);
3162 else if (test_bit(JOB_SCAN_RESULTS, &ai->jobs))
3163 airo_process_scan_results(ai);
3164 else /* Shouldn't get here, but we make sure to unlock */
3165 up(&ai->sem);
3166 }
3167
3168 return 0;
3169 }
3170
header_len(__le16 ctl)3171 static int header_len(__le16 ctl)
3172 {
3173 u16 fc = le16_to_cpu(ctl);
3174 switch (fc & 0xc) {
3175 case 4:
3176 if ((fc & 0xe0) == 0xc0)
3177 return 10; /* one-address control packet */
3178 return 16; /* two-address control packet */
3179 case 8:
3180 if ((fc & 0x300) == 0x300)
3181 return 30; /* WDS packet */
3182 }
3183 return 24;
3184 }
3185
airo_handle_cisco_mic(struct airo_info * ai)3186 static void airo_handle_cisco_mic(struct airo_info *ai)
3187 {
3188 if (test_bit(FLAG_MIC_CAPABLE, &ai->flags)) {
3189 set_bit(JOB_MIC, &ai->jobs);
3190 wake_up_interruptible(&ai->thr_wait);
3191 }
3192 }
3193
3194 /* Airo Status codes */
3195 #define STAT_NOBEACON 0x8000 /* Loss of sync - missed beacons */
3196 #define STAT_MAXRETRIES 0x8001 /* Loss of sync - max retries */
3197 #define STAT_MAXARL 0x8002 /* Loss of sync - average retry level exceeded*/
3198 #define STAT_FORCELOSS 0x8003 /* Loss of sync - host request */
3199 #define STAT_TSFSYNC 0x8004 /* Loss of sync - TSF synchronization */
3200 #define STAT_DEAUTH 0x8100 /* low byte is 802.11 reason code */
3201 #define STAT_DISASSOC 0x8200 /* low byte is 802.11 reason code */
3202 #define STAT_ASSOC_FAIL 0x8400 /* low byte is 802.11 reason code */
3203 #define STAT_AUTH_FAIL 0x0300 /* low byte is 802.11 reason code */
3204 #define STAT_ASSOC 0x0400 /* Associated */
3205 #define STAT_REASSOC 0x0600 /* Reassociated? Only on firmware >= 5.30.17 */
3206
airo_print_status(const char * devname,u16 status)3207 static void airo_print_status(const char *devname, u16 status)
3208 {
3209 u8 reason = status & 0xFF;
3210
3211 switch (status & 0xFF00) {
3212 case STAT_NOBEACON:
3213 switch (status) {
3214 case STAT_NOBEACON:
3215 airo_print_dbg(devname, "link lost (missed beacons)");
3216 break;
3217 case STAT_MAXRETRIES:
3218 case STAT_MAXARL:
3219 airo_print_dbg(devname, "link lost (max retries)");
3220 break;
3221 case STAT_FORCELOSS:
3222 airo_print_dbg(devname, "link lost (local choice)");
3223 break;
3224 case STAT_TSFSYNC:
3225 airo_print_dbg(devname, "link lost (TSF sync lost)");
3226 break;
3227 default:
3228 airo_print_dbg(devname, "unknown status %x\n", status);
3229 break;
3230 }
3231 break;
3232 case STAT_DEAUTH:
3233 airo_print_dbg(devname, "deauthenticated (reason: %d)", reason);
3234 break;
3235 case STAT_DISASSOC:
3236 airo_print_dbg(devname, "disassociated (reason: %d)", reason);
3237 break;
3238 case STAT_ASSOC_FAIL:
3239 airo_print_dbg(devname, "association failed (reason: %d)",
3240 reason);
3241 break;
3242 case STAT_AUTH_FAIL:
3243 airo_print_dbg(devname, "authentication failed (reason: %d)",
3244 reason);
3245 break;
3246 case STAT_ASSOC:
3247 case STAT_REASSOC:
3248 break;
3249 default:
3250 airo_print_dbg(devname, "unknown status %x\n", status);
3251 break;
3252 }
3253 }
3254
airo_handle_link(struct airo_info * ai)3255 static void airo_handle_link(struct airo_info *ai)
3256 {
3257 union iwreq_data wrqu;
3258 int scan_forceloss = 0;
3259 u16 status;
3260
3261 /* Get new status and acknowledge the link change */
3262 status = le16_to_cpu(IN4500(ai, LINKSTAT));
3263 OUT4500(ai, EVACK, EV_LINK);
3264
3265 if ((status == STAT_FORCELOSS) && (ai->scan_timeout > 0))
3266 scan_forceloss = 1;
3267
3268 airo_print_status(ai->dev->name, status);
3269
3270 if ((status == STAT_ASSOC) || (status == STAT_REASSOC)) {
3271 if (auto_wep)
3272 ai->expires = 0;
3273 if (ai->list_bss_task)
3274 wake_up_process(ai->list_bss_task);
3275 set_bit(FLAG_UPDATE_UNI, &ai->flags);
3276 set_bit(FLAG_UPDATE_MULTI, &ai->flags);
3277
3278 set_bit(JOB_EVENT, &ai->jobs);
3279 wake_up_interruptible(&ai->thr_wait);
3280
3281 netif_carrier_on(ai->dev);
3282 } else if (!scan_forceloss) {
3283 if (auto_wep && !ai->expires) {
3284 ai->expires = RUN_AT(3*HZ);
3285 wake_up_interruptible(&ai->thr_wait);
3286 }
3287
3288 /* Send event to user space */
3289 eth_zero_addr(wrqu.ap_addr.sa_data);
3290 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3291 wireless_send_event(ai->dev, SIOCGIWAP, &wrqu, NULL);
3292 netif_carrier_off(ai->dev);
3293 } else {
3294 netif_carrier_off(ai->dev);
3295 }
3296 }
3297
airo_handle_rx(struct airo_info * ai)3298 static void airo_handle_rx(struct airo_info *ai)
3299 {
3300 struct sk_buff *skb = NULL;
3301 __le16 fc, v, *buffer, tmpbuf[4];
3302 u16 len, hdrlen = 0, gap, fid;
3303 struct rx_hdr hdr;
3304 int success = 0;
3305
3306 if (test_bit(FLAG_MPI, &ai->flags)) {
3307 if (test_bit(FLAG_802_11, &ai->flags))
3308 mpi_receive_802_11(ai);
3309 else
3310 mpi_receive_802_3(ai);
3311 OUT4500(ai, EVACK, EV_RX);
3312 return;
3313 }
3314
3315 fid = IN4500(ai, RXFID);
3316
3317 /* Get the packet length */
3318 if (test_bit(FLAG_802_11, &ai->flags)) {
3319 bap_setup (ai, fid, 4, BAP0);
3320 bap_read (ai, (__le16*)&hdr, sizeof(hdr), BAP0);
3321 /* Bad CRC. Ignore packet */
3322 if (le16_to_cpu(hdr.status) & 2)
3323 hdr.len = 0;
3324 if (ai->wifidev == NULL)
3325 hdr.len = 0;
3326 } else {
3327 bap_setup(ai, fid, 0x36, BAP0);
3328 bap_read(ai, &hdr.len, 2, BAP0);
3329 }
3330 len = le16_to_cpu(hdr.len);
3331
3332 if (len > AIRO_DEF_MTU) {
3333 airo_print_err(ai->dev->name, "Bad size %d", len);
3334 goto done;
3335 }
3336 if (len == 0)
3337 goto done;
3338
3339 if (test_bit(FLAG_802_11, &ai->flags)) {
3340 bap_read(ai, &fc, sizeof (fc), BAP0);
3341 hdrlen = header_len(fc);
3342 } else
3343 hdrlen = ETH_ALEN * 2;
3344
3345 skb = dev_alloc_skb(len + hdrlen + 2 + 2);
3346 if (!skb) {
3347 ai->dev->stats.rx_dropped++;
3348 goto done;
3349 }
3350
3351 skb_reserve(skb, 2); /* This way the IP header is aligned */
3352 buffer = skb_put(skb, len + hdrlen);
3353 if (test_bit(FLAG_802_11, &ai->flags)) {
3354 buffer[0] = fc;
3355 bap_read(ai, buffer + 1, hdrlen - 2, BAP0);
3356 if (hdrlen == 24)
3357 bap_read(ai, tmpbuf, 6, BAP0);
3358
3359 bap_read(ai, &v, sizeof(v), BAP0);
3360 gap = le16_to_cpu(v);
3361 if (gap) {
3362 if (gap <= 8) {
3363 bap_read(ai, tmpbuf, gap, BAP0);
3364 } else {
3365 airo_print_err(ai->dev->name, "gaplen too "
3366 "big. Problems will follow...");
3367 }
3368 }
3369 bap_read(ai, buffer + hdrlen/2, len, BAP0);
3370 } else {
3371 MICBuffer micbuf;
3372
3373 bap_read(ai, buffer, ETH_ALEN * 2, BAP0);
3374 if (ai->micstats.enabled) {
3375 bap_read(ai, (__le16 *) &micbuf, sizeof (micbuf), BAP0);
3376 if (ntohs(micbuf.typelen) > 0x05DC)
3377 bap_setup(ai, fid, 0x44, BAP0);
3378 else {
3379 if (len <= sizeof (micbuf)) {
3380 dev_kfree_skb_irq(skb);
3381 goto done;
3382 }
3383
3384 len -= sizeof(micbuf);
3385 skb_trim(skb, len + hdrlen);
3386 }
3387 }
3388
3389 bap_read(ai, buffer + ETH_ALEN, len, BAP0);
3390 if (decapsulate(ai, &micbuf, (etherHead*) buffer, len))
3391 dev_kfree_skb_irq (skb);
3392 else
3393 success = 1;
3394 }
3395
3396 #ifdef WIRELESS_SPY
3397 if (success && (ai->spy_data.spy_number > 0)) {
3398 char *sa;
3399 struct iw_quality wstats;
3400
3401 /* Prepare spy data : addr + qual */
3402 if (!test_bit(FLAG_802_11, &ai->flags)) {
3403 sa = (char *) buffer + 6;
3404 bap_setup(ai, fid, 8, BAP0);
3405 bap_read(ai, (__le16 *) hdr.rssi, 2, BAP0);
3406 } else
3407 sa = (char *) buffer + 10;
3408 wstats.qual = hdr.rssi[0];
3409 if (ai->rssi)
3410 wstats.level = 0x100 - ai->rssi[hdr.rssi[1]].rssidBm;
3411 else
3412 wstats.level = (hdr.rssi[1] + 321) / 2;
3413 wstats.noise = ai->wstats.qual.noise;
3414 wstats.updated = IW_QUAL_LEVEL_UPDATED
3415 | IW_QUAL_QUAL_UPDATED
3416 | IW_QUAL_DBM;
3417 /* Update spy records */
3418 wireless_spy_update(ai->dev, sa, &wstats);
3419 }
3420 #endif /* WIRELESS_SPY */
3421
3422 done:
3423 OUT4500(ai, EVACK, EV_RX);
3424
3425 if (success) {
3426 if (test_bit(FLAG_802_11, &ai->flags)) {
3427 skb_reset_mac_header(skb);
3428 skb->pkt_type = PACKET_OTHERHOST;
3429 skb->dev = ai->wifidev;
3430 skb->protocol = htons(ETH_P_802_2);
3431 } else
3432 skb->protocol = eth_type_trans(skb, ai->dev);
3433 skb->ip_summed = CHECKSUM_NONE;
3434
3435 netif_rx(skb);
3436 }
3437 }
3438
airo_handle_tx(struct airo_info * ai,u16 status)3439 static void airo_handle_tx(struct airo_info *ai, u16 status)
3440 {
3441 int i, index = -1;
3442 u16 fid;
3443
3444 if (test_bit(FLAG_MPI, &ai->flags)) {
3445 unsigned long flags;
3446
3447 if (status & EV_TXEXC)
3448 get_tx_error(ai, -1);
3449
3450 spin_lock_irqsave(&ai->aux_lock, flags);
3451 if (!skb_queue_empty(&ai->txq)) {
3452 spin_unlock_irqrestore(&ai->aux_lock, flags);
3453 mpi_send_packet(ai->dev);
3454 } else {
3455 clear_bit(FLAG_PENDING_XMIT, &ai->flags);
3456 spin_unlock_irqrestore(&ai->aux_lock, flags);
3457 netif_wake_queue(ai->dev);
3458 }
3459 OUT4500(ai, EVACK, status & (EV_TX | EV_TXCPY | EV_TXEXC));
3460 return;
3461 }
3462
3463 fid = IN4500(ai, TXCOMPLFID);
3464
3465 for (i = 0; i < MAX_FIDS; i++) {
3466 if ((ai->fids[i] & 0xffff) == fid)
3467 index = i;
3468 }
3469
3470 if (index != -1) {
3471 if (status & EV_TXEXC)
3472 get_tx_error(ai, index);
3473
3474 OUT4500(ai, EVACK, status & (EV_TX | EV_TXEXC));
3475
3476 /* Set up to be used again */
3477 ai->fids[index] &= 0xffff;
3478 if (index < MAX_FIDS / 2) {
3479 if (!test_bit(FLAG_PENDING_XMIT, &ai->flags))
3480 netif_wake_queue(ai->dev);
3481 } else {
3482 if (!test_bit(FLAG_PENDING_XMIT11, &ai->flags))
3483 netif_wake_queue(ai->wifidev);
3484 }
3485 } else {
3486 OUT4500(ai, EVACK, status & (EV_TX | EV_TXCPY | EV_TXEXC));
3487 airo_print_err(ai->dev->name, "Unallocated FID was used to xmit");
3488 }
3489 }
3490
airo_interrupt(int irq,void * dev_id)3491 static irqreturn_t airo_interrupt(int irq, void *dev_id)
3492 {
3493 struct net_device *dev = dev_id;
3494 u16 status, savedInterrupts = 0;
3495 struct airo_info *ai = dev->ml_priv;
3496 int handled = 0;
3497
3498 if (!netif_device_present(dev))
3499 return IRQ_NONE;
3500
3501 for (;;) {
3502 status = IN4500(ai, EVSTAT);
3503 if (!(status & STATUS_INTS) || (status == 0xffff))
3504 break;
3505
3506 handled = 1;
3507
3508 if (status & EV_AWAKE) {
3509 OUT4500(ai, EVACK, EV_AWAKE);
3510 OUT4500(ai, EVACK, EV_AWAKE);
3511 }
3512
3513 if (!savedInterrupts) {
3514 savedInterrupts = IN4500(ai, EVINTEN);
3515 OUT4500(ai, EVINTEN, 0);
3516 }
3517
3518 if (status & EV_MIC) {
3519 OUT4500(ai, EVACK, EV_MIC);
3520 airo_handle_cisco_mic(ai);
3521 }
3522
3523 if (status & EV_LINK) {
3524 /* Link status changed */
3525 airo_handle_link(ai);
3526 }
3527
3528 /* Check to see if there is something to receive */
3529 if (status & EV_RX)
3530 airo_handle_rx(ai);
3531
3532 /* Check to see if a packet has been transmitted */
3533 if (status & (EV_TX | EV_TXCPY | EV_TXEXC))
3534 airo_handle_tx(ai, status);
3535
3536 if (status & ~STATUS_INTS & ~IGNORE_INTS) {
3537 airo_print_warn(ai->dev->name, "Got weird status %x",
3538 status & ~STATUS_INTS & ~IGNORE_INTS);
3539 }
3540 }
3541
3542 if (savedInterrupts)
3543 OUT4500(ai, EVINTEN, savedInterrupts);
3544
3545 return IRQ_RETVAL(handled);
3546 }
3547
3548 /*
3549 * Routines to talk to the card
3550 */
3551
3552 /*
3553 * This was originally written for the 4500, hence the name
3554 * NOTE: If use with 8bit mode and SMP bad things will happen!
3555 * Why would some one do 8 bit IO in an SMP machine?!?
3556 */
OUT4500(struct airo_info * ai,u16 reg,u16 val)3557 static void OUT4500(struct airo_info *ai, u16 reg, u16 val)
3558 {
3559 if (test_bit(FLAG_MPI,&ai->flags))
3560 reg <<= 1;
3561 if (!do8bitIO)
3562 outw(val, ai->dev->base_addr + reg);
3563 else {
3564 outb(val & 0xff, ai->dev->base_addr + reg);
3565 outb(val >> 8, ai->dev->base_addr + reg + 1);
3566 }
3567 }
3568
IN4500(struct airo_info * ai,u16 reg)3569 static u16 IN4500(struct airo_info *ai, u16 reg)
3570 {
3571 unsigned short rc;
3572
3573 if (test_bit(FLAG_MPI,&ai->flags))
3574 reg <<= 1;
3575 if (!do8bitIO)
3576 rc = inw(ai->dev->base_addr + reg);
3577 else {
3578 rc = inb(ai->dev->base_addr + reg);
3579 rc += ((int)inb(ai->dev->base_addr + reg + 1)) << 8;
3580 }
3581 return rc;
3582 }
3583
enable_MAC(struct airo_info * ai,int lock)3584 static int enable_MAC(struct airo_info *ai, int lock)
3585 {
3586 int rc;
3587 Cmd cmd;
3588 Resp rsp;
3589
3590 /* FLAG_RADIO_OFF : Radio disabled via /proc or Wireless Extensions
3591 * FLAG_RADIO_DOWN : Radio disabled via "ifconfig ethX down"
3592 * Note : we could try to use !netif_running(dev) in enable_MAC()
3593 * instead of this flag, but I don't trust it *within* the
3594 * open/close functions, and testing both flags together is
3595 * "cheaper" - Jean II */
3596 if (ai->flags & FLAG_RADIO_MASK) return SUCCESS;
3597
3598 if (lock && down_interruptible(&ai->sem))
3599 return -ERESTARTSYS;
3600
3601 if (!test_bit(FLAG_ENABLED, &ai->flags)) {
3602 memset(&cmd, 0, sizeof(cmd));
3603 cmd.cmd = MAC_ENABLE;
3604 rc = issuecommand(ai, &cmd, &rsp, true);
3605 if (rc == SUCCESS)
3606 set_bit(FLAG_ENABLED, &ai->flags);
3607 } else
3608 rc = SUCCESS;
3609
3610 if (lock)
3611 up(&ai->sem);
3612
3613 if (rc)
3614 airo_print_err(ai->dev->name, "Cannot enable MAC");
3615 else if ((rsp.status & 0xFF00) != 0) {
3616 airo_print_err(ai->dev->name, "Bad MAC enable reason=%x, "
3617 "rid=%x, offset=%d", rsp.rsp0, rsp.rsp1, rsp.rsp2);
3618 rc = ERROR;
3619 }
3620 return rc;
3621 }
3622
disable_MAC(struct airo_info * ai,int lock)3623 static void disable_MAC(struct airo_info *ai, int lock)
3624 {
3625 Cmd cmd;
3626 Resp rsp;
3627
3628 if (lock == 1 && down_interruptible(&ai->sem))
3629 return;
3630
3631 if (test_bit(FLAG_ENABLED, &ai->flags)) {
3632 if (lock != 2) /* lock == 2 means don't disable carrier */
3633 netif_carrier_off(ai->dev);
3634 memset(&cmd, 0, sizeof(cmd));
3635 cmd.cmd = MAC_DISABLE; // disable in case already enabled
3636 issuecommand(ai, &cmd, &rsp, true);
3637 clear_bit(FLAG_ENABLED, &ai->flags);
3638 }
3639 if (lock == 1)
3640 up(&ai->sem);
3641 }
3642
enable_interrupts(struct airo_info * ai)3643 static void enable_interrupts(struct airo_info *ai)
3644 {
3645 /* Enable the interrupts */
3646 OUT4500(ai, EVINTEN, STATUS_INTS);
3647 }
3648
disable_interrupts(struct airo_info * ai)3649 static void disable_interrupts(struct airo_info *ai)
3650 {
3651 OUT4500(ai, EVINTEN, 0);
3652 }
3653
mpi_receive_802_3(struct airo_info * ai)3654 static void mpi_receive_802_3(struct airo_info *ai)
3655 {
3656 RxFid rxd;
3657 int len = 0;
3658 struct sk_buff *skb;
3659 char *buffer;
3660 int off = 0;
3661 MICBuffer micbuf;
3662
3663 memcpy_fromio(&rxd, ai->rxfids[0].card_ram_off, sizeof(rxd));
3664 /* Make sure we got something */
3665 if (rxd.rdy && rxd.valid == 0) {
3666 len = rxd.len + 12;
3667 if (len < 12 || len > 2048)
3668 goto badrx;
3669
3670 skb = dev_alloc_skb(len);
3671 if (!skb) {
3672 ai->dev->stats.rx_dropped++;
3673 goto badrx;
3674 }
3675 buffer = skb_put(skb, len);
3676 memcpy(buffer, ai->rxfids[0].virtual_host_addr, ETH_ALEN * 2);
3677 if (ai->micstats.enabled) {
3678 memcpy(&micbuf,
3679 ai->rxfids[0].virtual_host_addr + ETH_ALEN * 2,
3680 sizeof(micbuf));
3681 if (ntohs(micbuf.typelen) <= 0x05DC) {
3682 if (len <= sizeof(micbuf) + ETH_ALEN * 2)
3683 goto badmic;
3684
3685 off = sizeof(micbuf);
3686 skb_trim (skb, len - off);
3687 }
3688 }
3689 memcpy(buffer + ETH_ALEN * 2,
3690 ai->rxfids[0].virtual_host_addr + ETH_ALEN * 2 + off,
3691 len - ETH_ALEN * 2 - off);
3692 if (decapsulate (ai, &micbuf, (etherHead*)buffer, len - off - ETH_ALEN * 2)) {
3693 badmic:
3694 dev_kfree_skb_irq (skb);
3695 goto badrx;
3696 }
3697 #ifdef WIRELESS_SPY
3698 if (ai->spy_data.spy_number > 0) {
3699 char *sa;
3700 struct iw_quality wstats;
3701 /* Prepare spy data : addr + qual */
3702 sa = buffer + ETH_ALEN;
3703 wstats.qual = 0; /* XXX Where do I get that info from ??? */
3704 wstats.level = 0;
3705 wstats.updated = 0;
3706 /* Update spy records */
3707 wireless_spy_update(ai->dev, sa, &wstats);
3708 }
3709 #endif /* WIRELESS_SPY */
3710
3711 skb->ip_summed = CHECKSUM_NONE;
3712 skb->protocol = eth_type_trans(skb, ai->dev);
3713 netif_rx(skb);
3714 }
3715 badrx:
3716 if (rxd.valid == 0) {
3717 rxd.valid = 1;
3718 rxd.rdy = 0;
3719 rxd.len = PKTSIZE;
3720 memcpy_toio(ai->rxfids[0].card_ram_off, &rxd, sizeof(rxd));
3721 }
3722 }
3723
mpi_receive_802_11(struct airo_info * ai)3724 static void mpi_receive_802_11(struct airo_info *ai)
3725 {
3726 RxFid rxd;
3727 struct sk_buff *skb = NULL;
3728 u16 len, hdrlen = 0;
3729 __le16 fc;
3730 struct rx_hdr hdr;
3731 u16 gap;
3732 u16 *buffer;
3733 char *ptr = ai->rxfids[0].virtual_host_addr + 4;
3734
3735 memcpy_fromio(&rxd, ai->rxfids[0].card_ram_off, sizeof(rxd));
3736 memcpy ((char *)&hdr, ptr, sizeof(hdr));
3737 ptr += sizeof(hdr);
3738 /* Bad CRC. Ignore packet */
3739 if (le16_to_cpu(hdr.status) & 2)
3740 hdr.len = 0;
3741 if (ai->wifidev == NULL)
3742 hdr.len = 0;
3743 len = le16_to_cpu(hdr.len);
3744 if (len > AIRO_DEF_MTU) {
3745 airo_print_err(ai->dev->name, "Bad size %d", len);
3746 goto badrx;
3747 }
3748 if (len == 0)
3749 goto badrx;
3750
3751 fc = get_unaligned((__le16 *)ptr);
3752 hdrlen = header_len(fc);
3753
3754 skb = dev_alloc_skb(len + hdrlen + 2);
3755 if (!skb) {
3756 ai->dev->stats.rx_dropped++;
3757 goto badrx;
3758 }
3759 buffer = skb_put(skb, len + hdrlen);
3760 memcpy ((char *)buffer, ptr, hdrlen);
3761 ptr += hdrlen;
3762 if (hdrlen == 24)
3763 ptr += 6;
3764 gap = get_unaligned_le16(ptr);
3765 ptr += sizeof(__le16);
3766 if (gap) {
3767 if (gap <= 8)
3768 ptr += gap;
3769 else
3770 airo_print_err(ai->dev->name,
3771 "gaplen too big. Problems will follow...");
3772 }
3773 memcpy ((char *)buffer + hdrlen, ptr, len);
3774 ptr += len;
3775 #ifdef IW_WIRELESS_SPY /* defined in iw_handler.h */
3776 if (ai->spy_data.spy_number > 0) {
3777 char *sa;
3778 struct iw_quality wstats;
3779 /* Prepare spy data : addr + qual */
3780 sa = (char*)buffer + 10;
3781 wstats.qual = hdr.rssi[0];
3782 if (ai->rssi)
3783 wstats.level = 0x100 - ai->rssi[hdr.rssi[1]].rssidBm;
3784 else
3785 wstats.level = (hdr.rssi[1] + 321) / 2;
3786 wstats.noise = ai->wstats.qual.noise;
3787 wstats.updated = IW_QUAL_QUAL_UPDATED
3788 | IW_QUAL_LEVEL_UPDATED
3789 | IW_QUAL_DBM;
3790 /* Update spy records */
3791 wireless_spy_update(ai->dev, sa, &wstats);
3792 }
3793 #endif /* IW_WIRELESS_SPY */
3794 skb_reset_mac_header(skb);
3795 skb->pkt_type = PACKET_OTHERHOST;
3796 skb->dev = ai->wifidev;
3797 skb->protocol = htons(ETH_P_802_2);
3798 skb->ip_summed = CHECKSUM_NONE;
3799 netif_rx(skb);
3800
3801 badrx:
3802 if (rxd.valid == 0) {
3803 rxd.valid = 1;
3804 rxd.rdy = 0;
3805 rxd.len = PKTSIZE;
3806 memcpy_toio(ai->rxfids[0].card_ram_off, &rxd, sizeof(rxd));
3807 }
3808 }
3809
set_auth_type(struct airo_info * local,int auth_type)3810 static inline void set_auth_type(struct airo_info *local, int auth_type)
3811 {
3812 local->config.authType = auth_type;
3813 /* Cache the last auth type used (of AUTH_OPEN and AUTH_ENCRYPT).
3814 * Used by airo_set_auth()
3815 */
3816 if (auth_type == AUTH_OPEN || auth_type == AUTH_ENCRYPT)
3817 local->last_auth = auth_type;
3818 }
3819
airo_readconfig(struct airo_info * ai,u8 * mac,int lock)3820 static int noinline_for_stack airo_readconfig(struct airo_info *ai, u8 *mac, int lock)
3821 {
3822 int i, status;
3823 /* large variables, so don't inline this function,
3824 * maybe change to kmalloc
3825 */
3826 tdsRssiRid rssi_rid;
3827 CapabilityRid cap_rid;
3828
3829 kfree(ai->SSID);
3830 ai->SSID = NULL;
3831 // general configuration (read/modify/write)
3832 status = readConfigRid(ai, lock);
3833 if (status != SUCCESS) return ERROR;
3834
3835 status = readCapabilityRid(ai, &cap_rid, lock);
3836 if (status != SUCCESS) return ERROR;
3837
3838 status = PC4500_readrid(ai, RID_RSSI, &rssi_rid, sizeof(rssi_rid), lock);
3839 if (status == SUCCESS) {
3840 if (ai->rssi || (ai->rssi = kmalloc(512, GFP_KERNEL)) != NULL)
3841 memcpy(ai->rssi, (u8*)&rssi_rid + 2, 512); /* Skip RID length member */
3842 }
3843 else {
3844 kfree(ai->rssi);
3845 ai->rssi = NULL;
3846 if (cap_rid.softCap & cpu_to_le16(8))
3847 ai->config.rmode |= RXMODE_NORMALIZED_RSSI;
3848 else
3849 airo_print_warn(ai->dev->name, "unknown received signal "
3850 "level scale");
3851 }
3852 ai->config.opmode = adhoc ? MODE_STA_IBSS : MODE_STA_ESS;
3853 set_auth_type(ai, AUTH_OPEN);
3854 ai->config.modulation = MOD_CCK;
3855
3856 if (le16_to_cpu(cap_rid.len) >= sizeof(cap_rid) &&
3857 (cap_rid.extSoftCap & cpu_to_le16(1)) &&
3858 micsetup(ai) == SUCCESS) {
3859 ai->config.opmode |= MODE_MIC;
3860 set_bit(FLAG_MIC_CAPABLE, &ai->flags);
3861 }
3862
3863 /* Save off the MAC */
3864 for (i = 0; i < ETH_ALEN; i++) {
3865 mac[i] = ai->config.macAddr[i];
3866 }
3867
3868 /* Check to see if there are any insmod configured
3869 rates to add */
3870 if (rates[0]) {
3871 memset(ai->config.rates, 0, sizeof(ai->config.rates));
3872 for (i = 0; i < 8 && rates[i]; i++) {
3873 ai->config.rates[i] = rates[i];
3874 }
3875 }
3876 set_bit (FLAG_COMMIT, &ai->flags);
3877
3878 return SUCCESS;
3879 }
3880
3881
setup_card(struct airo_info * ai,u8 * mac,int lock)3882 static u16 setup_card(struct airo_info *ai, u8 *mac, int lock)
3883 {
3884 Cmd cmd;
3885 Resp rsp;
3886 int status;
3887 SsidRid mySsid;
3888 __le16 lastindex;
3889 WepKeyRid wkr;
3890 int rc;
3891
3892 memset(&mySsid, 0, sizeof(mySsid));
3893 kfree (ai->flash);
3894 ai->flash = NULL;
3895
3896 /* The NOP is the first step in getting the card going */
3897 cmd.cmd = NOP;
3898 cmd.parm0 = cmd.parm1 = cmd.parm2 = 0;
3899 if (lock && down_interruptible(&ai->sem))
3900 return ERROR;
3901 if (issuecommand(ai, &cmd, &rsp, true) != SUCCESS) {
3902 if (lock)
3903 up(&ai->sem);
3904 return ERROR;
3905 }
3906 disable_MAC(ai, 0);
3907
3908 // Let's figure out if we need to use the AUX port
3909 if (!test_bit(FLAG_MPI,&ai->flags)) {
3910 cmd.cmd = CMD_ENABLEAUX;
3911 if (issuecommand(ai, &cmd, &rsp, true) != SUCCESS) {
3912 if (lock)
3913 up(&ai->sem);
3914 airo_print_err(ai->dev->name, "Error checking for AUX port");
3915 return ERROR;
3916 }
3917 if (!aux_bap || rsp.status & 0xff00) {
3918 ai->bap_read = fast_bap_read;
3919 airo_print_dbg(ai->dev->name, "Doing fast bap_reads");
3920 } else {
3921 ai->bap_read = aux_bap_read;
3922 airo_print_dbg(ai->dev->name, "Doing AUX bap_reads");
3923 }
3924 }
3925 if (lock)
3926 up(&ai->sem);
3927 if (ai->config.len == 0) {
3928 status = airo_readconfig(ai, mac, lock);
3929 if (status != SUCCESS)
3930 return ERROR;
3931 }
3932
3933 /* Setup the SSIDs if present */
3934 if (ssids[0]) {
3935 int i;
3936 for (i = 0; i < 3 && ssids[i]; i++) {
3937 size_t len = strlen(ssids[i]);
3938 if (len > 32)
3939 len = 32;
3940 mySsid.ssids[i].len = cpu_to_le16(len);
3941 memcpy(mySsid.ssids[i].ssid, ssids[i], len);
3942 }
3943 mySsid.len = cpu_to_le16(sizeof(mySsid));
3944 }
3945
3946 status = writeConfigRid(ai, lock);
3947 if (status != SUCCESS) return ERROR;
3948
3949 /* Set up the SSID list */
3950 if (ssids[0]) {
3951 status = writeSsidRid(ai, &mySsid, lock);
3952 if (status != SUCCESS) return ERROR;
3953 }
3954
3955 status = enable_MAC(ai, lock);
3956 if (status != SUCCESS)
3957 return ERROR;
3958
3959 /* Grab the initial wep key, we gotta save it for auto_wep */
3960 rc = readWepKeyRid(ai, &wkr, 1, lock);
3961 if (rc == SUCCESS) do {
3962 lastindex = wkr.kindex;
3963 if (wkr.kindex == cpu_to_le16(0xffff)) {
3964 ai->defindex = wkr.mac[0];
3965 }
3966 rc = readWepKeyRid(ai, &wkr, 0, lock);
3967 } while (lastindex != wkr.kindex);
3968
3969 try_auto_wep(ai);
3970
3971 return SUCCESS;
3972 }
3973
issuecommand(struct airo_info * ai,Cmd * pCmd,Resp * pRsp,bool may_sleep)3974 static u16 issuecommand(struct airo_info *ai, Cmd *pCmd, Resp *pRsp,
3975 bool may_sleep)
3976 {
3977 // Im really paranoid about letting it run forever!
3978 int max_tries = 600000;
3979
3980 if (IN4500(ai, EVSTAT) & EV_CMD)
3981 OUT4500(ai, EVACK, EV_CMD);
3982
3983 OUT4500(ai, PARAM0, pCmd->parm0);
3984 OUT4500(ai, PARAM1, pCmd->parm1);
3985 OUT4500(ai, PARAM2, pCmd->parm2);
3986 OUT4500(ai, COMMAND, pCmd->cmd);
3987
3988 while (max_tries-- && (IN4500(ai, EVSTAT) & EV_CMD) == 0) {
3989 if ((IN4500(ai, COMMAND)) == pCmd->cmd)
3990 // PC4500 didn't notice command, try again
3991 OUT4500(ai, COMMAND, pCmd->cmd);
3992 if (may_sleep && (max_tries & 255) == 0)
3993 cond_resched();
3994 }
3995
3996 if (max_tries == -1) {
3997 airo_print_err(ai->dev->name,
3998 "Max tries exceeded when issuing command");
3999 if (IN4500(ai, COMMAND) & COMMAND_BUSY)
4000 OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
4001 return ERROR;
4002 }
4003
4004 // command completed
4005 pRsp->status = IN4500(ai, STATUS);
4006 pRsp->rsp0 = IN4500(ai, RESP0);
4007 pRsp->rsp1 = IN4500(ai, RESP1);
4008 pRsp->rsp2 = IN4500(ai, RESP2);
4009 if ((pRsp->status & 0xff00)!=0 && pCmd->cmd != CMD_SOFTRESET)
4010 airo_print_err(ai->dev->name,
4011 "cmd:%x status:%x rsp0:%x rsp1:%x rsp2:%x",
4012 pCmd->cmd, pRsp->status, pRsp->rsp0, pRsp->rsp1,
4013 pRsp->rsp2);
4014
4015 // clear stuck command busy if necessary
4016 if (IN4500(ai, COMMAND) & COMMAND_BUSY) {
4017 OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
4018 }
4019 // acknowledge processing the status/response
4020 OUT4500(ai, EVACK, EV_CMD);
4021
4022 return SUCCESS;
4023 }
4024
4025 /* Sets up the bap to start exchange data. whichbap should
4026 * be one of the BAP0 or BAP1 defines. Locks should be held before
4027 * calling! */
bap_setup(struct airo_info * ai,u16 rid,u16 offset,int whichbap)4028 static int bap_setup(struct airo_info *ai, u16 rid, u16 offset, int whichbap)
4029 {
4030 int timeout = 50;
4031 int max_tries = 3;
4032
4033 OUT4500(ai, SELECT0+whichbap, rid);
4034 OUT4500(ai, OFFSET0+whichbap, offset);
4035 while (1) {
4036 int status = IN4500(ai, OFFSET0+whichbap);
4037 if (status & BAP_BUSY) {
4038 /* This isn't really a timeout, but its kinda
4039 close */
4040 if (timeout--) {
4041 continue;
4042 }
4043 } else if (status & BAP_ERR) {
4044 /* invalid rid or offset */
4045 airo_print_err(ai->dev->name, "BAP error %x %d",
4046 status, whichbap);
4047 return ERROR;
4048 } else if (status & BAP_DONE) { // success
4049 return SUCCESS;
4050 }
4051 if (!(max_tries--)) {
4052 airo_print_err(ai->dev->name,
4053 "BAP setup error too many retries\n");
4054 return ERROR;
4055 }
4056 // -- PC4500 missed it, try again
4057 OUT4500(ai, SELECT0+whichbap, rid);
4058 OUT4500(ai, OFFSET0+whichbap, offset);
4059 timeout = 50;
4060 }
4061 }
4062
4063 /* should only be called by aux_bap_read. This aux function and the
4064 following use concepts not documented in the developers guide. I
4065 got them from a patch given to my by Aironet */
aux_setup(struct airo_info * ai,u16 page,u16 offset,u16 * len)4066 static u16 aux_setup(struct airo_info *ai, u16 page,
4067 u16 offset, u16 *len)
4068 {
4069 u16 next;
4070
4071 OUT4500(ai, AUXPAGE, page);
4072 OUT4500(ai, AUXOFF, 0);
4073 next = IN4500(ai, AUXDATA);
4074 *len = IN4500(ai, AUXDATA)&0xff;
4075 if (offset != 4) OUT4500(ai, AUXOFF, offset);
4076 return next;
4077 }
4078
4079 /* requires call to bap_setup() first */
aux_bap_read(struct airo_info * ai,__le16 * pu16Dst,int bytelen,int whichbap)4080 static int aux_bap_read(struct airo_info *ai, __le16 *pu16Dst,
4081 int bytelen, int whichbap)
4082 {
4083 u16 len;
4084 u16 page;
4085 u16 offset;
4086 u16 next;
4087 int words;
4088 int i;
4089 unsigned long flags;
4090
4091 spin_lock_irqsave(&ai->aux_lock, flags);
4092 page = IN4500(ai, SWS0+whichbap);
4093 offset = IN4500(ai, SWS2+whichbap);
4094 next = aux_setup(ai, page, offset, &len);
4095 words = (bytelen+1)>>1;
4096
4097 for (i = 0; i<words;) {
4098 int count;
4099 count = (len>>1) < (words-i) ? (len>>1) : (words-i);
4100 if (!do8bitIO)
4101 insw(ai->dev->base_addr+DATA0+whichbap,
4102 pu16Dst+i, count);
4103 else
4104 insb(ai->dev->base_addr+DATA0+whichbap,
4105 pu16Dst+i, count << 1);
4106 i += count;
4107 if (i<words) {
4108 next = aux_setup(ai, next, 4, &len);
4109 }
4110 }
4111 spin_unlock_irqrestore(&ai->aux_lock, flags);
4112 return SUCCESS;
4113 }
4114
4115
4116 /* requires call to bap_setup() first */
fast_bap_read(struct airo_info * ai,__le16 * pu16Dst,int bytelen,int whichbap)4117 static int fast_bap_read(struct airo_info *ai, __le16 *pu16Dst,
4118 int bytelen, int whichbap)
4119 {
4120 bytelen = (bytelen + 1) & (~1); // round up to even value
4121 if (!do8bitIO)
4122 insw(ai->dev->base_addr+DATA0+whichbap, pu16Dst, bytelen>>1);
4123 else
4124 insb(ai->dev->base_addr+DATA0+whichbap, pu16Dst, bytelen);
4125 return SUCCESS;
4126 }
4127
4128 /* requires call to bap_setup() first */
bap_write(struct airo_info * ai,const __le16 * pu16Src,int bytelen,int whichbap)4129 static int bap_write(struct airo_info *ai, const __le16 *pu16Src,
4130 int bytelen, int whichbap)
4131 {
4132 bytelen = (bytelen + 1) & (~1); // round up to even value
4133 if (!do8bitIO)
4134 outsw(ai->dev->base_addr+DATA0+whichbap,
4135 pu16Src, bytelen>>1);
4136 else
4137 outsb(ai->dev->base_addr+DATA0+whichbap, pu16Src, bytelen);
4138 return SUCCESS;
4139 }
4140
PC4500_accessrid(struct airo_info * ai,u16 rid,u16 accmd)4141 static int PC4500_accessrid(struct airo_info *ai, u16 rid, u16 accmd)
4142 {
4143 Cmd cmd; /* for issuing commands */
4144 Resp rsp; /* response from commands */
4145 u16 status;
4146
4147 memset(&cmd, 0, sizeof(cmd));
4148 cmd.cmd = accmd;
4149 cmd.parm0 = rid;
4150 status = issuecommand(ai, &cmd, &rsp, true);
4151 if (status != 0) return status;
4152 if ((rsp.status & 0x7F00) != 0) {
4153 return (accmd << 8) + (rsp.rsp0 & 0xFF);
4154 }
4155 return 0;
4156 }
4157
4158 /* Note, that we are using BAP1 which is also used by transmit, so
4159 * we must get a lock. */
PC4500_readrid(struct airo_info * ai,u16 rid,void * pBuf,int len,int lock)4160 static int PC4500_readrid(struct airo_info *ai, u16 rid, void *pBuf, int len, int lock)
4161 {
4162 u16 status;
4163 int rc = SUCCESS;
4164
4165 if (lock) {
4166 if (down_interruptible(&ai->sem))
4167 return ERROR;
4168 }
4169 if (test_bit(FLAG_MPI,&ai->flags)) {
4170 Cmd cmd;
4171 Resp rsp;
4172
4173 memset(&cmd, 0, sizeof(cmd));
4174 memset(&rsp, 0, sizeof(rsp));
4175 ai->config_desc.rid_desc.valid = 1;
4176 ai->config_desc.rid_desc.len = RIDSIZE;
4177 ai->config_desc.rid_desc.rid = 0;
4178 ai->config_desc.rid_desc.host_addr = ai->ridbus;
4179
4180 cmd.cmd = CMD_ACCESS;
4181 cmd.parm0 = rid;
4182
4183 memcpy_toio(ai->config_desc.card_ram_off,
4184 &ai->config_desc.rid_desc, sizeof(Rid));
4185
4186 rc = issuecommand(ai, &cmd, &rsp, true);
4187
4188 if (rsp.status & 0x7f00)
4189 rc = rsp.rsp0;
4190 if (!rc)
4191 memcpy(pBuf, ai->config_desc.virtual_host_addr, len);
4192 goto done;
4193 } else {
4194 if ((status = PC4500_accessrid(ai, rid, CMD_ACCESS))!=SUCCESS) {
4195 rc = status;
4196 goto done;
4197 }
4198 if (bap_setup(ai, rid, 0, BAP1) != SUCCESS) {
4199 rc = ERROR;
4200 goto done;
4201 }
4202 // read the rid length field
4203 bap_read(ai, pBuf, 2, BAP1);
4204 // length for remaining part of rid
4205 len = min(len, (int)le16_to_cpu(*(__le16*)pBuf)) - 2;
4206
4207 if (len <= 2) {
4208 airo_print_err(ai->dev->name,
4209 "Rid %x has a length of %d which is too short",
4210 (int)rid, (int)len);
4211 rc = ERROR;
4212 goto done;
4213 }
4214 // read remainder of the rid
4215 rc = bap_read(ai, ((__le16*)pBuf)+1, len, BAP1);
4216 }
4217 done:
4218 if (lock)
4219 up(&ai->sem);
4220 return rc;
4221 }
4222
4223 /* Note, that we are using BAP1 which is also used by transmit, so
4224 * 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)4225 static int PC4500_writerid(struct airo_info *ai, u16 rid,
4226 const void *pBuf, int len, int lock)
4227 {
4228 u16 status;
4229 int rc = SUCCESS;
4230
4231 *(__le16*)pBuf = cpu_to_le16((u16)len);
4232
4233 if (lock) {
4234 if (down_interruptible(&ai->sem))
4235 return ERROR;
4236 }
4237 if (test_bit(FLAG_MPI,&ai->flags)) {
4238 Cmd cmd;
4239 Resp rsp;
4240
4241 if (test_bit(FLAG_ENABLED, &ai->flags) && (RID_WEP_TEMP != rid))
4242 airo_print_err(ai->dev->name,
4243 "%s: MAC should be disabled (rid=%04x)",
4244 __func__, rid);
4245 memset(&cmd, 0, sizeof(cmd));
4246 memset(&rsp, 0, sizeof(rsp));
4247
4248 ai->config_desc.rid_desc.valid = 1;
4249 ai->config_desc.rid_desc.len = *((u16 *)pBuf);
4250 ai->config_desc.rid_desc.rid = 0;
4251
4252 cmd.cmd = CMD_WRITERID;
4253 cmd.parm0 = rid;
4254
4255 memcpy_toio(ai->config_desc.card_ram_off,
4256 &ai->config_desc.rid_desc, sizeof(Rid));
4257
4258 if (len < 4 || len > 2047) {
4259 airo_print_err(ai->dev->name, "%s: len=%d", __func__, len);
4260 rc = -1;
4261 } else {
4262 memcpy(ai->config_desc.virtual_host_addr,
4263 pBuf, len);
4264
4265 rc = issuecommand(ai, &cmd, &rsp, true);
4266 if ((rc & 0xff00) != 0) {
4267 airo_print_err(ai->dev->name, "%s: Write rid Error %d",
4268 __func__, rc);
4269 airo_print_err(ai->dev->name, "%s: Cmd=%04x",
4270 __func__, cmd.cmd);
4271 }
4272
4273 if ((rsp.status & 0x7f00))
4274 rc = rsp.rsp0;
4275 }
4276 } else {
4277 // --- first access so that we can write the rid data
4278 if ((status = PC4500_accessrid(ai, rid, CMD_ACCESS)) != 0) {
4279 rc = status;
4280 goto done;
4281 }
4282 // --- now write the rid data
4283 if (bap_setup(ai, rid, 0, BAP1) != SUCCESS) {
4284 rc = ERROR;
4285 goto done;
4286 }
4287 bap_write(ai, pBuf, len, BAP1);
4288 // ---now commit the rid data
4289 rc = PC4500_accessrid(ai, rid, 0x100|CMD_ACCESS);
4290 }
4291 done:
4292 if (lock)
4293 up(&ai->sem);
4294 return rc;
4295 }
4296
4297 /* Allocates a FID to be used for transmitting packets. We only use
4298 one for now. */
transmit_allocate(struct airo_info * ai,int lenPayload,int raw)4299 static u16 transmit_allocate(struct airo_info *ai, int lenPayload, int raw)
4300 {
4301 unsigned int loop = 3000;
4302 Cmd cmd;
4303 Resp rsp;
4304 u16 txFid;
4305 __le16 txControl;
4306
4307 cmd.cmd = CMD_ALLOCATETX;
4308 cmd.parm0 = lenPayload;
4309 if (down_interruptible(&ai->sem))
4310 return ERROR;
4311 if (issuecommand(ai, &cmd, &rsp, true) != SUCCESS) {
4312 txFid = ERROR;
4313 goto done;
4314 }
4315 if ((rsp.status & 0xFF00) != 0) {
4316 txFid = ERROR;
4317 goto done;
4318 }
4319 /* wait for the allocate event/indication
4320 * It makes me kind of nervous that this can just sit here and spin,
4321 * but in practice it only loops like four times. */
4322 while (((IN4500(ai, EVSTAT) & EV_ALLOC) == 0) && --loop);
4323 if (!loop) {
4324 txFid = ERROR;
4325 goto done;
4326 }
4327
4328 // get the allocated fid and acknowledge
4329 txFid = IN4500(ai, TXALLOCFID);
4330 OUT4500(ai, EVACK, EV_ALLOC);
4331
4332 /* The CARD is pretty cool since it converts the ethernet packet
4333 * into 802.11. Also note that we don't release the FID since we
4334 * will be using the same one over and over again. */
4335 /* We only have to setup the control once since we are not
4336 * releasing the fid. */
4337 if (raw)
4338 txControl = cpu_to_le16(TXCTL_TXOK | TXCTL_TXEX | TXCTL_802_11
4339 | TXCTL_ETHERNET | TXCTL_NORELEASE);
4340 else
4341 txControl = cpu_to_le16(TXCTL_TXOK | TXCTL_TXEX | TXCTL_802_3
4342 | TXCTL_ETHERNET | TXCTL_NORELEASE);
4343 if (bap_setup(ai, txFid, 0x0008, BAP1) != SUCCESS)
4344 txFid = ERROR;
4345 else
4346 bap_write(ai, &txControl, sizeof(txControl), BAP1);
4347
4348 done:
4349 up(&ai->sem);
4350
4351 return txFid;
4352 }
4353
4354 /* In general BAP1 is dedicated to transmiting packets. However,
4355 since we need a BAP when accessing RIDs, we also use BAP1 for that.
4356 Make sure the BAP1 spinlock is held when this is called. */
transmit_802_3_packet(struct airo_info * ai,int len,char * pPacket,bool may_sleep)4357 static int transmit_802_3_packet(struct airo_info *ai, int len, char *pPacket,
4358 bool may_sleep)
4359 {
4360 __le16 payloadLen;
4361 Cmd cmd;
4362 Resp rsp;
4363 int miclen = 0;
4364 u16 txFid = len;
4365 MICBuffer pMic;
4366
4367 len >>= 16;
4368
4369 if (len <= ETH_ALEN * 2) {
4370 airo_print_warn(ai->dev->name, "Short packet %d", len);
4371 return ERROR;
4372 }
4373 len -= ETH_ALEN * 2;
4374
4375 if (test_bit(FLAG_MIC_CAPABLE, &ai->flags) && ai->micstats.enabled &&
4376 (ntohs(((__be16 *)pPacket)[6]) != 0x888E)) {
4377 if (encapsulate(ai, (etherHead *)pPacket,&pMic, len) != SUCCESS)
4378 return ERROR;
4379 miclen = sizeof(pMic);
4380 }
4381 // packet is destination[6], source[6], payload[len-12]
4382 // write the payload length and dst/src/payload
4383 if (bap_setup(ai, txFid, 0x0036, BAP1) != SUCCESS) return ERROR;
4384 /* The hardware addresses aren't counted as part of the payload, so
4385 * we have to subtract the 12 bytes for the addresses off */
4386 payloadLen = cpu_to_le16(len + miclen);
4387 bap_write(ai, &payloadLen, sizeof(payloadLen), BAP1);
4388 bap_write(ai, (__le16*)pPacket, sizeof(etherHead), BAP1);
4389 if (miclen)
4390 bap_write(ai, (__le16*)&pMic, miclen, BAP1);
4391 bap_write(ai, (__le16*)(pPacket + sizeof(etherHead)), len, 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, may_sleep) != SUCCESS)
4397 return ERROR;
4398 if ((rsp.status & 0xFF00) != 0) return ERROR;
4399 return SUCCESS;
4400 }
4401
transmit_802_11_packet(struct airo_info * ai,int len,char * pPacket,bool may_sleep)4402 static int transmit_802_11_packet(struct airo_info *ai, int len, char *pPacket,
4403 bool may_sleep)
4404 {
4405 __le16 fc, payloadLen;
4406 Cmd cmd;
4407 Resp rsp;
4408 int hdrlen;
4409 static u8 tail[(30-10) + 2 + 6] = {[30-10] = 6};
4410 /* padding of header to full size + le16 gaplen (6) + gaplen bytes */
4411 u16 txFid = len;
4412 len >>= 16;
4413
4414 fc = *(__le16*)pPacket;
4415 hdrlen = header_len(fc);
4416
4417 if (len < hdrlen) {
4418 airo_print_warn(ai->dev->name, "Short packet %d", len);
4419 return ERROR;
4420 }
4421
4422 /* packet is 802.11 header + payload
4423 * write the payload length and dst/src/payload */
4424 if (bap_setup(ai, txFid, 6, BAP1) != SUCCESS) return ERROR;
4425 /* The 802.11 header aren't counted as part of the payload, so
4426 * we have to subtract the header bytes off */
4427 payloadLen = cpu_to_le16(len-hdrlen);
4428 bap_write(ai, &payloadLen, sizeof(payloadLen), BAP1);
4429 if (bap_setup(ai, txFid, 0x0014, BAP1) != SUCCESS) return ERROR;
4430 bap_write(ai, (__le16 *)pPacket, hdrlen, BAP1);
4431 bap_write(ai, (__le16 *)(tail + (hdrlen - 10)), 38 - hdrlen, BAP1);
4432
4433 bap_write(ai, (__le16 *)(pPacket + hdrlen), len - hdrlen, BAP1);
4434 // issue the transmit command
4435 memset(&cmd, 0, sizeof(cmd));
4436 cmd.cmd = CMD_TRANSMIT;
4437 cmd.parm0 = txFid;
4438 if (issuecommand(ai, &cmd, &rsp, may_sleep) != SUCCESS)
4439 return ERROR;
4440 if ((rsp.status & 0xFF00) != 0) return ERROR;
4441 return SUCCESS;
4442 }
4443
4444 /*
4445 * This is the proc_fs routines. It is a bit messier than I would
4446 * like! Feel free to clean it up!
4447 */
4448
4449 static ssize_t proc_read(struct file *file,
4450 char __user *buffer,
4451 size_t len,
4452 loff_t *offset);
4453
4454 static ssize_t proc_write(struct file *file,
4455 const char __user *buffer,
4456 size_t len,
4457 loff_t *offset);
4458 static int proc_close(struct inode *inode, struct file *file);
4459
4460 static int proc_stats_open(struct inode *inode, struct file *file);
4461 static int proc_statsdelta_open(struct inode *inode, struct file *file);
4462 static int proc_status_open(struct inode *inode, struct file *file);
4463 static int proc_SSID_open(struct inode *inode, struct file *file);
4464 static int proc_APList_open(struct inode *inode, struct file *file);
4465 static int proc_BSSList_open(struct inode *inode, struct file *file);
4466 static int proc_config_open(struct inode *inode, struct file *file);
4467 static int proc_wepkey_open(struct inode *inode, struct file *file);
4468
4469 static const struct proc_ops proc_statsdelta_ops = {
4470 .proc_read = proc_read,
4471 .proc_open = proc_statsdelta_open,
4472 .proc_release = proc_close,
4473 .proc_lseek = default_llseek,
4474 };
4475
4476 static const struct proc_ops proc_stats_ops = {
4477 .proc_read = proc_read,
4478 .proc_open = proc_stats_open,
4479 .proc_release = proc_close,
4480 .proc_lseek = default_llseek,
4481 };
4482
4483 static const struct proc_ops proc_status_ops = {
4484 .proc_read = proc_read,
4485 .proc_open = proc_status_open,
4486 .proc_release = proc_close,
4487 .proc_lseek = default_llseek,
4488 };
4489
4490 static const struct proc_ops proc_SSID_ops = {
4491 .proc_read = proc_read,
4492 .proc_write = proc_write,
4493 .proc_open = proc_SSID_open,
4494 .proc_release = proc_close,
4495 .proc_lseek = default_llseek,
4496 };
4497
4498 static const struct proc_ops proc_BSSList_ops = {
4499 .proc_read = proc_read,
4500 .proc_write = proc_write,
4501 .proc_open = proc_BSSList_open,
4502 .proc_release = proc_close,
4503 .proc_lseek = default_llseek,
4504 };
4505
4506 static const struct proc_ops proc_APList_ops = {
4507 .proc_read = proc_read,
4508 .proc_write = proc_write,
4509 .proc_open = proc_APList_open,
4510 .proc_release = proc_close,
4511 .proc_lseek = default_llseek,
4512 };
4513
4514 static const struct proc_ops proc_config_ops = {
4515 .proc_read = proc_read,
4516 .proc_write = proc_write,
4517 .proc_open = proc_config_open,
4518 .proc_release = proc_close,
4519 .proc_lseek = default_llseek,
4520 };
4521
4522 static const struct proc_ops proc_wepkey_ops = {
4523 .proc_read = proc_read,
4524 .proc_write = proc_write,
4525 .proc_open = proc_wepkey_open,
4526 .proc_release = proc_close,
4527 .proc_lseek = default_llseek,
4528 };
4529
4530 static struct proc_dir_entry *airo_entry;
4531
4532 struct proc_data {
4533 int release_buffer;
4534 int readlen;
4535 char *rbuffer;
4536 int writelen;
4537 int maxwritelen;
4538 char *wbuffer;
4539 void (*on_close) (struct inode *, struct file *);
4540 };
4541
setup_proc_entry(struct net_device * dev,struct airo_info * apriv)4542 static int setup_proc_entry(struct net_device *dev,
4543 struct airo_info *apriv)
4544 {
4545 struct proc_dir_entry *entry;
4546
4547 /* First setup the device directory */
4548 strcpy(apriv->proc_name, dev->name);
4549 apriv->proc_entry = proc_mkdir_mode(apriv->proc_name, airo_perm,
4550 airo_entry);
4551 if (!apriv->proc_entry)
4552 return -ENOMEM;
4553 proc_set_user(apriv->proc_entry, proc_kuid, proc_kgid);
4554
4555 /* Setup the StatsDelta */
4556 entry = proc_create_data("StatsDelta", 0444 & proc_perm,
4557 apriv->proc_entry, &proc_statsdelta_ops, dev);
4558 if (!entry)
4559 goto fail;
4560 proc_set_user(entry, proc_kuid, proc_kgid);
4561
4562 /* Setup the Stats */
4563 entry = proc_create_data("Stats", 0444 & proc_perm,
4564 apriv->proc_entry, &proc_stats_ops, dev);
4565 if (!entry)
4566 goto fail;
4567 proc_set_user(entry, proc_kuid, proc_kgid);
4568
4569 /* Setup the Status */
4570 entry = proc_create_data("Status", 0444 & proc_perm,
4571 apriv->proc_entry, &proc_status_ops, dev);
4572 if (!entry)
4573 goto fail;
4574 proc_set_user(entry, proc_kuid, proc_kgid);
4575
4576 /* Setup the Config */
4577 entry = proc_create_data("Config", proc_perm,
4578 apriv->proc_entry, &proc_config_ops, dev);
4579 if (!entry)
4580 goto fail;
4581 proc_set_user(entry, proc_kuid, proc_kgid);
4582
4583 /* Setup the SSID */
4584 entry = proc_create_data("SSID", proc_perm,
4585 apriv->proc_entry, &proc_SSID_ops, dev);
4586 if (!entry)
4587 goto fail;
4588 proc_set_user(entry, proc_kuid, proc_kgid);
4589
4590 /* Setup the APList */
4591 entry = proc_create_data("APList", proc_perm,
4592 apriv->proc_entry, &proc_APList_ops, dev);
4593 if (!entry)
4594 goto fail;
4595 proc_set_user(entry, proc_kuid, proc_kgid);
4596
4597 /* Setup the BSSList */
4598 entry = proc_create_data("BSSList", proc_perm,
4599 apriv->proc_entry, &proc_BSSList_ops, dev);
4600 if (!entry)
4601 goto fail;
4602 proc_set_user(entry, proc_kuid, proc_kgid);
4603
4604 /* Setup the WepKey */
4605 entry = proc_create_data("WepKey", proc_perm,
4606 apriv->proc_entry, &proc_wepkey_ops, dev);
4607 if (!entry)
4608 goto fail;
4609 proc_set_user(entry, proc_kuid, proc_kgid);
4610 return 0;
4611
4612 fail:
4613 remove_proc_subtree(apriv->proc_name, airo_entry);
4614 return -ENOMEM;
4615 }
4616
takedown_proc_entry(struct net_device * dev,struct airo_info * apriv)4617 static int takedown_proc_entry(struct net_device *dev,
4618 struct airo_info *apriv)
4619 {
4620 remove_proc_subtree(apriv->proc_name, airo_entry);
4621 return 0;
4622 }
4623
4624 /*
4625 * What we want from the proc_fs is to be able to efficiently read
4626 * and write the configuration. To do this, we want to read the
4627 * configuration when the file is opened and write it when the file is
4628 * closed. So basically we allocate a read buffer at open and fill it
4629 * with data, and allocate a write buffer and read it at close.
4630 */
4631
4632 /*
4633 * The read routine is generic, it relies on the preallocated rbuffer
4634 * to supply the data.
4635 */
proc_read(struct file * file,char __user * buffer,size_t len,loff_t * offset)4636 static ssize_t proc_read(struct file *file,
4637 char __user *buffer,
4638 size_t len,
4639 loff_t *offset)
4640 {
4641 struct proc_data *priv = file->private_data;
4642
4643 if (!priv->rbuffer)
4644 return -EINVAL;
4645
4646 return simple_read_from_buffer(buffer, len, offset, priv->rbuffer,
4647 priv->readlen);
4648 }
4649
4650 /*
4651 * The write routine is generic, it fills in a preallocated rbuffer
4652 * to supply the data.
4653 */
proc_write(struct file * file,const char __user * buffer,size_t len,loff_t * offset)4654 static ssize_t proc_write(struct file *file,
4655 const char __user *buffer,
4656 size_t len,
4657 loff_t *offset)
4658 {
4659 ssize_t ret;
4660 struct proc_data *priv = file->private_data;
4661
4662 if (!priv->wbuffer)
4663 return -EINVAL;
4664
4665 ret = simple_write_to_buffer(priv->wbuffer, priv->maxwritelen, offset,
4666 buffer, len);
4667 if (ret > 0)
4668 priv->writelen = max_t(int, priv->writelen, *offset);
4669
4670 return ret;
4671 }
4672
proc_status_open(struct inode * inode,struct file * file)4673 static int proc_status_open(struct inode *inode, struct file *file)
4674 {
4675 struct proc_data *data;
4676 struct net_device *dev = PDE_DATA(inode);
4677 struct airo_info *apriv = dev->ml_priv;
4678 CapabilityRid cap_rid;
4679 StatusRid status_rid;
4680 u16 mode;
4681 int i;
4682
4683 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
4684 return -ENOMEM;
4685 data = file->private_data;
4686 if ((data->rbuffer = kmalloc(2048, GFP_KERNEL)) == NULL) {
4687 kfree (file->private_data);
4688 return -ENOMEM;
4689 }
4690
4691 readStatusRid(apriv, &status_rid, 1);
4692 readCapabilityRid(apriv, &cap_rid, 1);
4693
4694 mode = le16_to_cpu(status_rid.mode);
4695
4696 i = sprintf(data->rbuffer, "Status: %s%s%s%s%s%s%s%s%s\n",
4697 mode & 1 ? "CFG ": "",
4698 mode & 2 ? "ACT ": "",
4699 mode & 0x10 ? "SYN ": "",
4700 mode & 0x20 ? "LNK ": "",
4701 mode & 0x40 ? "LEAP ": "",
4702 mode & 0x80 ? "PRIV ": "",
4703 mode & 0x100 ? "KEY ": "",
4704 mode & 0x200 ? "WEP ": "",
4705 mode & 0x8000 ? "ERR ": "");
4706 sprintf(data->rbuffer+i, "Mode: %x\n"
4707 "Signal Strength: %d\n"
4708 "Signal Quality: %d\n"
4709 "SSID: %-.*s\n"
4710 "AP: %-.16s\n"
4711 "Freq: %d\n"
4712 "BitRate: %dmbs\n"
4713 "Driver Version: %s\n"
4714 "Device: %s\nManufacturer: %s\nFirmware Version: %s\n"
4715 "Radio type: %x\nCountry: %x\nHardware Version: %x\n"
4716 "Software Version: %x\nSoftware Subversion: %x\n"
4717 "Boot block version: %x\n",
4718 le16_to_cpu(status_rid.mode),
4719 le16_to_cpu(status_rid.normalizedSignalStrength),
4720 le16_to_cpu(status_rid.signalQuality),
4721 le16_to_cpu(status_rid.SSIDlen),
4722 status_rid.SSID,
4723 status_rid.apName,
4724 le16_to_cpu(status_rid.channel),
4725 le16_to_cpu(status_rid.currentXmitRate) / 2,
4726 version,
4727 cap_rid.prodName,
4728 cap_rid.manName,
4729 cap_rid.prodVer,
4730 le16_to_cpu(cap_rid.radioType),
4731 le16_to_cpu(cap_rid.country),
4732 le16_to_cpu(cap_rid.hardVer),
4733 le16_to_cpu(cap_rid.softVer),
4734 le16_to_cpu(cap_rid.softSubVer),
4735 le16_to_cpu(cap_rid.bootBlockVer));
4736 data->readlen = strlen(data->rbuffer);
4737 return 0;
4738 }
4739
4740 static int proc_stats_rid_open(struct inode*, struct file*, u16);
proc_statsdelta_open(struct inode * inode,struct file * file)4741 static int proc_statsdelta_open(struct inode *inode,
4742 struct file *file)
4743 {
4744 if (file->f_mode&FMODE_WRITE) {
4745 return proc_stats_rid_open(inode, file, RID_STATSDELTACLEAR);
4746 }
4747 return proc_stats_rid_open(inode, file, RID_STATSDELTA);
4748 }
4749
proc_stats_open(struct inode * inode,struct file * file)4750 static int proc_stats_open(struct inode *inode, struct file *file)
4751 {
4752 return proc_stats_rid_open(inode, file, RID_STATS);
4753 }
4754
proc_stats_rid_open(struct inode * inode,struct file * file,u16 rid)4755 static int proc_stats_rid_open(struct inode *inode,
4756 struct file *file,
4757 u16 rid)
4758 {
4759 struct proc_data *data;
4760 struct net_device *dev = PDE_DATA(inode);
4761 struct airo_info *apriv = dev->ml_priv;
4762 StatsRid stats;
4763 int i, j;
4764 __le32 *vals = stats.vals;
4765 int len;
4766
4767 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
4768 return -ENOMEM;
4769 data = file->private_data;
4770 if ((data->rbuffer = kmalloc(4096, GFP_KERNEL)) == NULL) {
4771 kfree (file->private_data);
4772 return -ENOMEM;
4773 }
4774
4775 readStatsRid(apriv, &stats, rid, 1);
4776 len = le16_to_cpu(stats.len);
4777
4778 j = 0;
4779 for (i = 0; statsLabels[i]!=(char *)-1 && i*4<len; i++) {
4780 if (!statsLabels[i]) continue;
4781 if (j+strlen(statsLabels[i])+16>4096) {
4782 airo_print_warn(apriv->dev->name,
4783 "Potentially disastrous buffer overflow averted!");
4784 break;
4785 }
4786 j+=sprintf(data->rbuffer+j, "%s: %u\n", statsLabels[i],
4787 le32_to_cpu(vals[i]));
4788 }
4789 if (i*4 >= len) {
4790 airo_print_warn(apriv->dev->name, "Got a short rid");
4791 }
4792 data->readlen = j;
4793 return 0;
4794 }
4795
get_dec_u16(char * buffer,int * start,int limit)4796 static int get_dec_u16(char *buffer, int *start, int limit)
4797 {
4798 u16 value;
4799 int valid = 0;
4800 for (value = 0; *start < limit && buffer[*start] >= '0' &&
4801 buffer[*start] <= '9'; (*start)++) {
4802 valid = 1;
4803 value *= 10;
4804 value += buffer[*start] - '0';
4805 }
4806 if (!valid) return -1;
4807 return value;
4808 }
4809
4810 static int airo_config_commit(struct net_device *dev,
4811 struct iw_request_info *info, void *zwrq,
4812 char *extra);
4813
sniffing_mode(struct airo_info * ai)4814 static inline int sniffing_mode(struct airo_info *ai)
4815 {
4816 return (le16_to_cpu(ai->config.rmode) & le16_to_cpu(RXMODE_MASK)) >=
4817 le16_to_cpu(RXMODE_RFMON);
4818 }
4819
proc_config_on_close(struct inode * inode,struct file * file)4820 static void proc_config_on_close(struct inode *inode, struct file *file)
4821 {
4822 struct proc_data *data = file->private_data;
4823 struct net_device *dev = PDE_DATA(inode);
4824 struct airo_info *ai = dev->ml_priv;
4825 char *line;
4826
4827 if (!data->writelen) return;
4828
4829 readConfigRid(ai, 1);
4830 set_bit (FLAG_COMMIT, &ai->flags);
4831
4832 line = data->wbuffer;
4833 while (line[0]) {
4834 /*** Mode processing */
4835 if (!strncmp(line, "Mode: ", 6)) {
4836 line += 6;
4837 if (sniffing_mode(ai))
4838 set_bit (FLAG_RESET, &ai->flags);
4839 ai->config.rmode &= ~RXMODE_FULL_MASK;
4840 clear_bit (FLAG_802_11, &ai->flags);
4841 ai->config.opmode &= ~MODE_CFG_MASK;
4842 ai->config.scanMode = SCANMODE_ACTIVE;
4843 if (line[0] == 'a') {
4844 ai->config.opmode |= MODE_STA_IBSS;
4845 } else {
4846 ai->config.opmode |= MODE_STA_ESS;
4847 if (line[0] == 'r') {
4848 ai->config.rmode |= RXMODE_RFMON | RXMODE_DISABLE_802_3_HEADER;
4849 ai->config.scanMode = SCANMODE_PASSIVE;
4850 set_bit (FLAG_802_11, &ai->flags);
4851 } else if (line[0] == 'y') {
4852 ai->config.rmode |= RXMODE_RFMON_ANYBSS | RXMODE_DISABLE_802_3_HEADER;
4853 ai->config.scanMode = SCANMODE_PASSIVE;
4854 set_bit (FLAG_802_11, &ai->flags);
4855 } else if (line[0] == 'l')
4856 ai->config.rmode |= RXMODE_LANMON;
4857 }
4858 set_bit (FLAG_COMMIT, &ai->flags);
4859 }
4860
4861 /*** Radio status */
4862 else if (!strncmp(line,"Radio: ", 7)) {
4863 line += 7;
4864 if (!strncmp(line,"off", 3)) {
4865 set_bit (FLAG_RADIO_OFF, &ai->flags);
4866 } else {
4867 clear_bit (FLAG_RADIO_OFF, &ai->flags);
4868 }
4869 }
4870 /*** NodeName processing */
4871 else if (!strncmp(line, "NodeName: ", 10)) {
4872 int j;
4873
4874 line += 10;
4875 memset(ai->config.nodeName, 0, 16);
4876 /* Do the name, assume a space between the mode and node name */
4877 for (j = 0; j < 16 && line[j] != '\n'; j++) {
4878 ai->config.nodeName[j] = line[j];
4879 }
4880 set_bit (FLAG_COMMIT, &ai->flags);
4881 }
4882
4883 /*** PowerMode processing */
4884 else if (!strncmp(line, "PowerMode: ", 11)) {
4885 line += 11;
4886 if (!strncmp(line, "PSPCAM", 6)) {
4887 ai->config.powerSaveMode = POWERSAVE_PSPCAM;
4888 set_bit (FLAG_COMMIT, &ai->flags);
4889 } else if (!strncmp(line, "PSP", 3)) {
4890 ai->config.powerSaveMode = POWERSAVE_PSP;
4891 set_bit (FLAG_COMMIT, &ai->flags);
4892 } else {
4893 ai->config.powerSaveMode = POWERSAVE_CAM;
4894 set_bit (FLAG_COMMIT, &ai->flags);
4895 }
4896 } else if (!strncmp(line, "DataRates: ", 11)) {
4897 int v, i = 0, k = 0; /* i is index into line,
4898 k is index to rates */
4899
4900 line += 11;
4901 while ((v = get_dec_u16(line, &i, 3))!=-1) {
4902 ai->config.rates[k++] = (u8)v;
4903 line += i + 1;
4904 i = 0;
4905 }
4906 set_bit (FLAG_COMMIT, &ai->flags);
4907 } else if (!strncmp(line, "Channel: ", 9)) {
4908 int v, i = 0;
4909 line += 9;
4910 v = get_dec_u16(line, &i, i+3);
4911 if (v != -1) {
4912 ai->config.channelSet = cpu_to_le16(v);
4913 set_bit (FLAG_COMMIT, &ai->flags);
4914 }
4915 } else if (!strncmp(line, "XmitPower: ", 11)) {
4916 int v, i = 0;
4917 line += 11;
4918 v = get_dec_u16(line, &i, i+3);
4919 if (v != -1) {
4920 ai->config.txPower = cpu_to_le16(v);
4921 set_bit (FLAG_COMMIT, &ai->flags);
4922 }
4923 } else if (!strncmp(line, "WEP: ", 5)) {
4924 line += 5;
4925 switch(line[0]) {
4926 case 's':
4927 set_auth_type(ai, AUTH_SHAREDKEY);
4928 break;
4929 case 'e':
4930 set_auth_type(ai, AUTH_ENCRYPT);
4931 break;
4932 default:
4933 set_auth_type(ai, AUTH_OPEN);
4934 break;
4935 }
4936 set_bit (FLAG_COMMIT, &ai->flags);
4937 } else if (!strncmp(line, "LongRetryLimit: ", 16)) {
4938 int v, i = 0;
4939
4940 line += 16;
4941 v = get_dec_u16(line, &i, 3);
4942 v = (v<0) ? 0 : ((v>255) ? 255 : v);
4943 ai->config.longRetryLimit = cpu_to_le16(v);
4944 set_bit (FLAG_COMMIT, &ai->flags);
4945 } else if (!strncmp(line, "ShortRetryLimit: ", 17)) {
4946 int v, i = 0;
4947
4948 line += 17;
4949 v = get_dec_u16(line, &i, 3);
4950 v = (v<0) ? 0 : ((v>255) ? 255 : v);
4951 ai->config.shortRetryLimit = cpu_to_le16(v);
4952 set_bit (FLAG_COMMIT, &ai->flags);
4953 } else if (!strncmp(line, "RTSThreshold: ", 14)) {
4954 int v, i = 0;
4955
4956 line += 14;
4957 v = get_dec_u16(line, &i, 4);
4958 v = (v<0) ? 0 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v);
4959 ai->config.rtsThres = cpu_to_le16(v);
4960 set_bit (FLAG_COMMIT, &ai->flags);
4961 } else if (!strncmp(line, "TXMSDULifetime: ", 16)) {
4962 int v, i = 0;
4963
4964 line += 16;
4965 v = get_dec_u16(line, &i, 5);
4966 v = (v<0) ? 0 : v;
4967 ai->config.txLifetime = cpu_to_le16(v);
4968 set_bit (FLAG_COMMIT, &ai->flags);
4969 } else if (!strncmp(line, "RXMSDULifetime: ", 16)) {
4970 int v, i = 0;
4971
4972 line += 16;
4973 v = get_dec_u16(line, &i, 5);
4974 v = (v<0) ? 0 : v;
4975 ai->config.rxLifetime = cpu_to_le16(v);
4976 set_bit (FLAG_COMMIT, &ai->flags);
4977 } else if (!strncmp(line, "TXDiversity: ", 13)) {
4978 ai->config.txDiversity =
4979 (line[13]=='l') ? 1 :
4980 ((line[13]=='r')? 2: 3);
4981 set_bit (FLAG_COMMIT, &ai->flags);
4982 } else if (!strncmp(line, "RXDiversity: ", 13)) {
4983 ai->config.rxDiversity =
4984 (line[13]=='l') ? 1 :
4985 ((line[13]=='r')? 2: 3);
4986 set_bit (FLAG_COMMIT, &ai->flags);
4987 } else if (!strncmp(line, "FragThreshold: ", 15)) {
4988 int v, i = 0;
4989
4990 line += 15;
4991 v = get_dec_u16(line, &i, 4);
4992 v = (v<256) ? 256 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v);
4993 v = v & 0xfffe; /* Make sure its even */
4994 ai->config.fragThresh = cpu_to_le16(v);
4995 set_bit (FLAG_COMMIT, &ai->flags);
4996 } else if (!strncmp(line, "Modulation: ", 12)) {
4997 line += 12;
4998 switch(*line) {
4999 case 'd': ai->config.modulation = MOD_DEFAULT; set_bit(FLAG_COMMIT, &ai->flags); break;
5000 case 'c': ai->config.modulation = MOD_CCK; set_bit(FLAG_COMMIT, &ai->flags); break;
5001 case 'm': ai->config.modulation = MOD_MOK; set_bit(FLAG_COMMIT, &ai->flags); break;
5002 default: airo_print_warn(ai->dev->name, "Unknown modulation");
5003 }
5004 } else if (!strncmp(line, "Preamble: ", 10)) {
5005 line += 10;
5006 switch(*line) {
5007 case 'a': ai->config.preamble = PREAMBLE_AUTO; set_bit(FLAG_COMMIT, &ai->flags); break;
5008 case 'l': ai->config.preamble = PREAMBLE_LONG; set_bit(FLAG_COMMIT, &ai->flags); break;
5009 case 's': ai->config.preamble = PREAMBLE_SHORT; set_bit(FLAG_COMMIT, &ai->flags); break;
5010 default: airo_print_warn(ai->dev->name, "Unknown preamble");
5011 }
5012 } else {
5013 airo_print_warn(ai->dev->name, "Couldn't figure out %s", line);
5014 }
5015 while (line[0] && line[0] != '\n') line++;
5016 if (line[0]) line++;
5017 }
5018 airo_config_commit(dev, NULL, NULL, NULL);
5019 }
5020
get_rmode(__le16 mode)5021 static const char *get_rmode(__le16 mode)
5022 {
5023 switch(mode & RXMODE_MASK) {
5024 case RXMODE_RFMON: return "rfmon";
5025 case RXMODE_RFMON_ANYBSS: return "yna (any) bss rfmon";
5026 case RXMODE_LANMON: return "lanmon";
5027 }
5028 return "ESS";
5029 }
5030
proc_config_open(struct inode * inode,struct file * file)5031 static int proc_config_open(struct inode *inode, struct file *file)
5032 {
5033 struct proc_data *data;
5034 struct net_device *dev = PDE_DATA(inode);
5035 struct airo_info *ai = dev->ml_priv;
5036 int i;
5037 __le16 mode;
5038
5039 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5040 return -ENOMEM;
5041 data = file->private_data;
5042 if ((data->rbuffer = kmalloc(2048, GFP_KERNEL)) == NULL) {
5043 kfree (file->private_data);
5044 return -ENOMEM;
5045 }
5046 if ((data->wbuffer = kzalloc(2048, GFP_KERNEL)) == NULL) {
5047 kfree (data->rbuffer);
5048 kfree (file->private_data);
5049 return -ENOMEM;
5050 }
5051 data->maxwritelen = 2048;
5052 data->on_close = proc_config_on_close;
5053
5054 readConfigRid(ai, 1);
5055
5056 mode = ai->config.opmode & MODE_CFG_MASK;
5057 i = sprintf(data->rbuffer,
5058 "Mode: %s\n"
5059 "Radio: %s\n"
5060 "NodeName: %-16s\n"
5061 "PowerMode: %s\n"
5062 "DataRates: %d %d %d %d %d %d %d %d\n"
5063 "Channel: %d\n"
5064 "XmitPower: %d\n",
5065 mode == MODE_STA_IBSS ? "adhoc" :
5066 mode == MODE_STA_ESS ? get_rmode(ai->config.rmode):
5067 mode == MODE_AP ? "AP" :
5068 mode == MODE_AP_RPTR ? "AP RPTR" : "Error",
5069 test_bit(FLAG_RADIO_OFF, &ai->flags) ? "off" : "on",
5070 ai->config.nodeName,
5071 ai->config.powerSaveMode == POWERSAVE_CAM ? "CAM" :
5072 ai->config.powerSaveMode == POWERSAVE_PSP ? "PSP" :
5073 ai->config.powerSaveMode == POWERSAVE_PSPCAM ? "PSPCAM" :
5074 "Error",
5075 (int)ai->config.rates[0],
5076 (int)ai->config.rates[1],
5077 (int)ai->config.rates[2],
5078 (int)ai->config.rates[3],
5079 (int)ai->config.rates[4],
5080 (int)ai->config.rates[5],
5081 (int)ai->config.rates[6],
5082 (int)ai->config.rates[7],
5083 le16_to_cpu(ai->config.channelSet),
5084 le16_to_cpu(ai->config.txPower)
5085 );
5086 sprintf(data->rbuffer + i,
5087 "LongRetryLimit: %d\n"
5088 "ShortRetryLimit: %d\n"
5089 "RTSThreshold: %d\n"
5090 "TXMSDULifetime: %d\n"
5091 "RXMSDULifetime: %d\n"
5092 "TXDiversity: %s\n"
5093 "RXDiversity: %s\n"
5094 "FragThreshold: %d\n"
5095 "WEP: %s\n"
5096 "Modulation: %s\n"
5097 "Preamble: %s\n",
5098 le16_to_cpu(ai->config.longRetryLimit),
5099 le16_to_cpu(ai->config.shortRetryLimit),
5100 le16_to_cpu(ai->config.rtsThres),
5101 le16_to_cpu(ai->config.txLifetime),
5102 le16_to_cpu(ai->config.rxLifetime),
5103 ai->config.txDiversity == 1 ? "left" :
5104 ai->config.txDiversity == 2 ? "right" : "both",
5105 ai->config.rxDiversity == 1 ? "left" :
5106 ai->config.rxDiversity == 2 ? "right" : "both",
5107 le16_to_cpu(ai->config.fragThresh),
5108 ai->config.authType == AUTH_ENCRYPT ? "encrypt" :
5109 ai->config.authType == AUTH_SHAREDKEY ? "shared" : "open",
5110 ai->config.modulation == MOD_DEFAULT ? "default" :
5111 ai->config.modulation == MOD_CCK ? "cck" :
5112 ai->config.modulation == MOD_MOK ? "mok" : "error",
5113 ai->config.preamble == PREAMBLE_AUTO ? "auto" :
5114 ai->config.preamble == PREAMBLE_LONG ? "long" :
5115 ai->config.preamble == PREAMBLE_SHORT ? "short" : "error"
5116 );
5117 data->readlen = strlen(data->rbuffer);
5118 return 0;
5119 }
5120
proc_SSID_on_close(struct inode * inode,struct file * file)5121 static void proc_SSID_on_close(struct inode *inode, struct file *file)
5122 {
5123 struct proc_data *data = file->private_data;
5124 struct net_device *dev = PDE_DATA(inode);
5125 struct airo_info *ai = dev->ml_priv;
5126 SsidRid SSID_rid;
5127 int i;
5128 char *p = data->wbuffer;
5129 char *end = p + data->writelen;
5130
5131 if (!data->writelen)
5132 return;
5133
5134 *end = '\n'; /* sentinel; we have space for it */
5135
5136 memset(&SSID_rid, 0, sizeof(SSID_rid));
5137
5138 for (i = 0; i < 3 && p < end; i++) {
5139 int j = 0;
5140 /* copy up to 32 characters from this line */
5141 while (*p != '\n' && j < 32)
5142 SSID_rid.ssids[i].ssid[j++] = *p++;
5143 if (j == 0)
5144 break;
5145 SSID_rid.ssids[i].len = cpu_to_le16(j);
5146 /* skip to the beginning of the next line */
5147 while (*p++ != '\n')
5148 ;
5149 }
5150 if (i)
5151 SSID_rid.len = cpu_to_le16(sizeof(SSID_rid));
5152 disable_MAC(ai, 1);
5153 writeSsidRid(ai, &SSID_rid, 1);
5154 enable_MAC(ai, 1);
5155 }
5156
proc_APList_on_close(struct inode * inode,struct file * file)5157 static void proc_APList_on_close(struct inode *inode, struct file *file)
5158 {
5159 struct proc_data *data = file->private_data;
5160 struct net_device *dev = PDE_DATA(inode);
5161 struct airo_info *ai = dev->ml_priv;
5162 APListRid *APList_rid = &ai->APList;
5163 int i;
5164
5165 if (!data->writelen) return;
5166
5167 memset(APList_rid, 0, sizeof(*APList_rid));
5168 APList_rid->len = cpu_to_le16(sizeof(*APList_rid));
5169
5170 for (i = 0; i < 4 && data->writelen >= (i + 1) * 6 * 3; i++)
5171 mac_pton(data->wbuffer + i * 6 * 3, APList_rid->ap[i]);
5172
5173 disable_MAC(ai, 1);
5174 writeAPListRid(ai, APList_rid, 1);
5175 enable_MAC(ai, 1);
5176 }
5177
5178 /* 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)5179 static int do_writerid(struct airo_info *ai, u16 rid, const void *rid_data,
5180 int len, int dummy)
5181 {
5182 int rc;
5183
5184 disable_MAC(ai, 1);
5185 rc = PC4500_writerid(ai, rid, rid_data, len, 1);
5186 enable_MAC(ai, 1);
5187 return rc;
5188 }
5189
5190 /* Returns the WEP key at the specified index, or -1 if that key does
5191 * not exist. The buffer is assumed to be at least 16 bytes in length.
5192 */
get_wep_key(struct airo_info * ai,u16 index,char * buf,u16 buflen)5193 static int get_wep_key(struct airo_info *ai, u16 index, char *buf, u16 buflen)
5194 {
5195 WepKeyRid wkr;
5196 int rc;
5197 __le16 lastindex;
5198
5199 rc = readWepKeyRid(ai, &wkr, 1, 1);
5200 if (rc != SUCCESS)
5201 return -1;
5202 do {
5203 lastindex = wkr.kindex;
5204 if (le16_to_cpu(wkr.kindex) == index) {
5205 int klen = min_t(int, buflen, le16_to_cpu(wkr.klen));
5206 memcpy(buf, wkr.key, klen);
5207 return klen;
5208 }
5209 rc = readWepKeyRid(ai, &wkr, 0, 1);
5210 if (rc != SUCCESS)
5211 return -1;
5212 } while (lastindex != wkr.kindex);
5213 return -1;
5214 }
5215
get_wep_tx_idx(struct airo_info * ai)5216 static int get_wep_tx_idx(struct airo_info *ai)
5217 {
5218 WepKeyRid wkr;
5219 int rc;
5220 __le16 lastindex;
5221
5222 rc = readWepKeyRid(ai, &wkr, 1, 1);
5223 if (rc != SUCCESS)
5224 return -1;
5225 do {
5226 lastindex = wkr.kindex;
5227 if (wkr.kindex == cpu_to_le16(0xffff))
5228 return wkr.mac[0];
5229 rc = readWepKeyRid(ai, &wkr, 0, 1);
5230 if (rc != SUCCESS)
5231 return -1;
5232 } while (lastindex != wkr.kindex);
5233 return -1;
5234 }
5235
set_wep_key(struct airo_info * ai,u16 index,const u8 * key,u16 keylen,int perm,int lock)5236 static int set_wep_key(struct airo_info *ai, u16 index, const u8 *key,
5237 u16 keylen, int perm, int lock)
5238 {
5239 static const unsigned char macaddr[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 };
5240 WepKeyRid wkr;
5241 int rc;
5242
5243 if (WARN_ON(keylen == 0))
5244 return -1;
5245
5246 memset(&wkr, 0, sizeof(wkr));
5247 wkr.len = cpu_to_le16(sizeof(wkr));
5248 wkr.kindex = cpu_to_le16(index);
5249 wkr.klen = cpu_to_le16(keylen);
5250 memcpy(wkr.key, key, keylen);
5251 memcpy(wkr.mac, macaddr, ETH_ALEN);
5252
5253 if (perm) disable_MAC(ai, lock);
5254 rc = writeWepKeyRid(ai, &wkr, perm, lock);
5255 if (perm) enable_MAC(ai, lock);
5256 return rc;
5257 }
5258
set_wep_tx_idx(struct airo_info * ai,u16 index,int perm,int lock)5259 static int set_wep_tx_idx(struct airo_info *ai, u16 index, int perm, int lock)
5260 {
5261 WepKeyRid wkr;
5262 int rc;
5263
5264 memset(&wkr, 0, sizeof(wkr));
5265 wkr.len = cpu_to_le16(sizeof(wkr));
5266 wkr.kindex = cpu_to_le16(0xffff);
5267 wkr.mac[0] = (char)index;
5268
5269 if (perm) {
5270 ai->defindex = (char)index;
5271 disable_MAC(ai, lock);
5272 }
5273
5274 rc = writeWepKeyRid(ai, &wkr, perm, lock);
5275
5276 if (perm)
5277 enable_MAC(ai, lock);
5278 return rc;
5279 }
5280
proc_wepkey_on_close(struct inode * inode,struct file * file)5281 static void proc_wepkey_on_close(struct inode *inode, struct file *file)
5282 {
5283 struct proc_data *data;
5284 struct net_device *dev = PDE_DATA(inode);
5285 struct airo_info *ai = dev->ml_priv;
5286 int i, rc;
5287 u8 key[16];
5288 u16 index = 0;
5289 int j = 0;
5290
5291 memset(key, 0, sizeof(key));
5292
5293 data = file->private_data;
5294 if (!data->writelen) return;
5295
5296 if (data->wbuffer[0] >= '0' && data->wbuffer[0] <= '3' &&
5297 (data->wbuffer[1] == ' ' || data->wbuffer[1] == '\n')) {
5298 index = data->wbuffer[0] - '0';
5299 if (data->wbuffer[1] == '\n') {
5300 rc = set_wep_tx_idx(ai, index, 1, 1);
5301 if (rc < 0) {
5302 airo_print_err(ai->dev->name, "failed to set "
5303 "WEP transmit index to %d: %d.",
5304 index, rc);
5305 }
5306 return;
5307 }
5308 j = 2;
5309 } else {
5310 airo_print_err(ai->dev->name, "WepKey passed invalid key index");
5311 return;
5312 }
5313
5314 for (i = 0; i < 16*3 && data->wbuffer[i+j]; i++) {
5315 int val;
5316
5317 if (i % 3 == 2)
5318 continue;
5319
5320 val = hex_to_bin(data->wbuffer[i+j]);
5321 if (val < 0) {
5322 airo_print_err(ai->dev->name, "WebKey passed invalid key hex");
5323 return;
5324 }
5325 switch(i%3) {
5326 case 0:
5327 key[i/3] = (u8)val << 4;
5328 break;
5329 case 1:
5330 key[i/3] |= (u8)val;
5331 break;
5332 }
5333 }
5334
5335 rc = set_wep_key(ai, index, key, i/3, 1, 1);
5336 if (rc < 0) {
5337 airo_print_err(ai->dev->name, "failed to set WEP key at index "
5338 "%d: %d.", index, rc);
5339 }
5340 }
5341
proc_wepkey_open(struct inode * inode,struct file * file)5342 static int proc_wepkey_open(struct inode *inode, struct file *file)
5343 {
5344 struct proc_data *data;
5345 struct net_device *dev = PDE_DATA(inode);
5346 struct airo_info *ai = dev->ml_priv;
5347 char *ptr;
5348 WepKeyRid wkr;
5349 __le16 lastindex;
5350 int j = 0;
5351 int rc;
5352
5353 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5354 return -ENOMEM;
5355 memset(&wkr, 0, sizeof(wkr));
5356 data = file->private_data;
5357 if ((data->rbuffer = kzalloc(180, GFP_KERNEL)) == NULL) {
5358 kfree (file->private_data);
5359 return -ENOMEM;
5360 }
5361 data->writelen = 0;
5362 data->maxwritelen = 80;
5363 if ((data->wbuffer = kzalloc(80, GFP_KERNEL)) == NULL) {
5364 kfree (data->rbuffer);
5365 kfree (file->private_data);
5366 return -ENOMEM;
5367 }
5368 data->on_close = proc_wepkey_on_close;
5369
5370 ptr = data->rbuffer;
5371 strcpy(ptr, "No wep keys\n");
5372 rc = readWepKeyRid(ai, &wkr, 1, 1);
5373 if (rc == SUCCESS) do {
5374 lastindex = wkr.kindex;
5375 if (wkr.kindex == cpu_to_le16(0xffff)) {
5376 j += sprintf(ptr+j, "Tx key = %d\n",
5377 (int)wkr.mac[0]);
5378 } else {
5379 j += sprintf(ptr+j, "Key %d set with length = %d\n",
5380 le16_to_cpu(wkr.kindex),
5381 le16_to_cpu(wkr.klen));
5382 }
5383 readWepKeyRid(ai, &wkr, 0, 1);
5384 } while ((lastindex != wkr.kindex) && (j < 180-30));
5385
5386 data->readlen = strlen(data->rbuffer);
5387 return 0;
5388 }
5389
proc_SSID_open(struct inode * inode,struct file * file)5390 static int proc_SSID_open(struct inode *inode, struct file *file)
5391 {
5392 struct proc_data *data;
5393 struct net_device *dev = PDE_DATA(inode);
5394 struct airo_info *ai = dev->ml_priv;
5395 int i;
5396 char *ptr;
5397 SsidRid SSID_rid;
5398
5399 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5400 return -ENOMEM;
5401 data = file->private_data;
5402 if ((data->rbuffer = kmalloc(104, GFP_KERNEL)) == NULL) {
5403 kfree (file->private_data);
5404 return -ENOMEM;
5405 }
5406 data->writelen = 0;
5407 data->maxwritelen = 33*3;
5408 /* allocate maxwritelen + 1; we'll want a sentinel */
5409 if ((data->wbuffer = kzalloc(33*3 + 1, GFP_KERNEL)) == NULL) {
5410 kfree (data->rbuffer);
5411 kfree (file->private_data);
5412 return -ENOMEM;
5413 }
5414 data->on_close = proc_SSID_on_close;
5415
5416 readSsidRid(ai, &SSID_rid);
5417 ptr = data->rbuffer;
5418 for (i = 0; i < 3; i++) {
5419 int j;
5420 size_t len = le16_to_cpu(SSID_rid.ssids[i].len);
5421 if (!len)
5422 break;
5423 if (len > 32)
5424 len = 32;
5425 for (j = 0; j < len && SSID_rid.ssids[i].ssid[j]; j++)
5426 *ptr++ = SSID_rid.ssids[i].ssid[j];
5427 *ptr++ = '\n';
5428 }
5429 *ptr = '\0';
5430 data->readlen = strlen(data->rbuffer);
5431 return 0;
5432 }
5433
proc_APList_open(struct inode * inode,struct file * file)5434 static int proc_APList_open(struct inode *inode, struct file *file)
5435 {
5436 struct proc_data *data;
5437 struct net_device *dev = PDE_DATA(inode);
5438 struct airo_info *ai = dev->ml_priv;
5439 int i;
5440 char *ptr;
5441 APListRid *APList_rid = &ai->APList;
5442
5443 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5444 return -ENOMEM;
5445 data = file->private_data;
5446 if ((data->rbuffer = kmalloc(104, GFP_KERNEL)) == NULL) {
5447 kfree (file->private_data);
5448 return -ENOMEM;
5449 }
5450 data->writelen = 0;
5451 data->maxwritelen = 4*6*3;
5452 if ((data->wbuffer = kzalloc(data->maxwritelen, GFP_KERNEL)) == NULL) {
5453 kfree (data->rbuffer);
5454 kfree (file->private_data);
5455 return -ENOMEM;
5456 }
5457 data->on_close = proc_APList_on_close;
5458
5459 ptr = data->rbuffer;
5460 for (i = 0; i < 4; i++) {
5461 // We end when we find a zero MAC
5462 if (!*(int*)APList_rid->ap[i] &&
5463 !*(int*)&APList_rid->ap[i][2]) break;
5464 ptr += sprintf(ptr, "%pM\n", APList_rid->ap[i]);
5465 }
5466 if (i==0) ptr += sprintf(ptr, "Not using specific APs\n");
5467
5468 *ptr = '\0';
5469 data->readlen = strlen(data->rbuffer);
5470 return 0;
5471 }
5472
proc_BSSList_open(struct inode * inode,struct file * file)5473 static int proc_BSSList_open(struct inode *inode, struct file *file)
5474 {
5475 struct proc_data *data;
5476 struct net_device *dev = PDE_DATA(inode);
5477 struct airo_info *ai = dev->ml_priv;
5478 char *ptr;
5479 BSSListRid BSSList_rid;
5480 int rc;
5481 /* If doLoseSync is not 1, we won't do a Lose Sync */
5482 int doLoseSync = -1;
5483
5484 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5485 return -ENOMEM;
5486 data = file->private_data;
5487 if ((data->rbuffer = kmalloc(1024, GFP_KERNEL)) == NULL) {
5488 kfree (file->private_data);
5489 return -ENOMEM;
5490 }
5491 data->writelen = 0;
5492 data->maxwritelen = 0;
5493 data->wbuffer = NULL;
5494 data->on_close = NULL;
5495
5496 if (file->f_mode & FMODE_WRITE) {
5497 if (!(file->f_mode & FMODE_READ)) {
5498 Cmd cmd;
5499 Resp rsp;
5500
5501 if (ai->flags & FLAG_RADIO_MASK) {
5502 kfree(data->rbuffer);
5503 kfree(file->private_data);
5504 return -ENETDOWN;
5505 }
5506 memset(&cmd, 0, sizeof(cmd));
5507 cmd.cmd = CMD_LISTBSS;
5508 if (down_interruptible(&ai->sem)) {
5509 kfree(data->rbuffer);
5510 kfree(file->private_data);
5511 return -ERESTARTSYS;
5512 }
5513 issuecommand(ai, &cmd, &rsp, true);
5514 up(&ai->sem);
5515 data->readlen = 0;
5516 return 0;
5517 }
5518 doLoseSync = 1;
5519 }
5520 ptr = data->rbuffer;
5521 /* There is a race condition here if there are concurrent opens.
5522 Since it is a rare condition, we'll just live with it, otherwise
5523 we have to add a spin lock... */
5524 rc = readBSSListRid(ai, doLoseSync, &BSSList_rid);
5525 while (rc == 0 && BSSList_rid.index != cpu_to_le16(0xffff)) {
5526 ptr += sprintf(ptr, "%pM %.*s rssi = %d",
5527 BSSList_rid.bssid,
5528 (int)BSSList_rid.ssidLen,
5529 BSSList_rid.ssid,
5530 le16_to_cpu(BSSList_rid.dBm));
5531 ptr += sprintf(ptr, " channel = %d %s %s %s %s\n",
5532 le16_to_cpu(BSSList_rid.dsChannel),
5533 BSSList_rid.cap & CAP_ESS ? "ESS" : "",
5534 BSSList_rid.cap & CAP_IBSS ? "adhoc" : "",
5535 BSSList_rid.cap & CAP_PRIVACY ? "wep" : "",
5536 BSSList_rid.cap & CAP_SHORTHDR ? "shorthdr" : "");
5537 rc = readBSSListRid(ai, 0, &BSSList_rid);
5538 }
5539 *ptr = '\0';
5540 data->readlen = strlen(data->rbuffer);
5541 return 0;
5542 }
5543
proc_close(struct inode * inode,struct file * file)5544 static int proc_close(struct inode *inode, struct file *file)
5545 {
5546 struct proc_data *data = file->private_data;
5547
5548 if (data->on_close != NULL)
5549 data->on_close(inode, file);
5550 kfree(data->rbuffer);
5551 kfree(data->wbuffer);
5552 kfree(data);
5553 return 0;
5554 }
5555
5556 /* Since the card doesn't automatically switch to the right WEP mode,
5557 we will make it do it. If the card isn't associated, every secs we
5558 will switch WEP modes to see if that will help. If the card is
5559 associated we will check every minute to see if anything has
5560 changed. */
timer_func(struct net_device * dev)5561 static void timer_func(struct net_device *dev)
5562 {
5563 struct airo_info *apriv = dev->ml_priv;
5564
5565 /* We don't have a link so try changing the authtype */
5566 readConfigRid(apriv, 0);
5567 disable_MAC(apriv, 0);
5568 switch(apriv->config.authType) {
5569 case AUTH_ENCRYPT:
5570 /* So drop to OPEN */
5571 apriv->config.authType = AUTH_OPEN;
5572 break;
5573 case AUTH_SHAREDKEY:
5574 if (apriv->keyindex < auto_wep) {
5575 set_wep_tx_idx(apriv, apriv->keyindex, 0, 0);
5576 apriv->config.authType = AUTH_SHAREDKEY;
5577 apriv->keyindex++;
5578 } else {
5579 /* Drop to ENCRYPT */
5580 apriv->keyindex = 0;
5581 set_wep_tx_idx(apriv, apriv->defindex, 0, 0);
5582 apriv->config.authType = AUTH_ENCRYPT;
5583 }
5584 break;
5585 default: /* We'll escalate to SHAREDKEY */
5586 apriv->config.authType = AUTH_SHAREDKEY;
5587 }
5588 set_bit (FLAG_COMMIT, &apriv->flags);
5589 writeConfigRid(apriv, 0);
5590 enable_MAC(apriv, 0);
5591 up(&apriv->sem);
5592
5593 /* Schedule check to see if the change worked */
5594 clear_bit(JOB_AUTOWEP, &apriv->jobs);
5595 apriv->expires = RUN_AT(HZ*3);
5596 }
5597
5598 #ifdef CONFIG_PCI
airo_pci_probe(struct pci_dev * pdev,const struct pci_device_id * pent)5599 static int airo_pci_probe(struct pci_dev *pdev,
5600 const struct pci_device_id *pent)
5601 {
5602 struct net_device *dev;
5603
5604 if (pci_enable_device(pdev))
5605 return -ENODEV;
5606 pci_set_master(pdev);
5607
5608 if (pdev->device == 0x5000 || pdev->device == 0xa504)
5609 dev = _init_airo_card(pdev->irq, pdev->resource[0].start, 0, pdev, &pdev->dev);
5610 else
5611 dev = _init_airo_card(pdev->irq, pdev->resource[2].start, 0, pdev, &pdev->dev);
5612 if (!dev) {
5613 pci_disable_device(pdev);
5614 return -ENODEV;
5615 }
5616
5617 pci_set_drvdata(pdev, dev);
5618 return 0;
5619 }
5620
airo_pci_remove(struct pci_dev * pdev)5621 static void airo_pci_remove(struct pci_dev *pdev)
5622 {
5623 struct net_device *dev = pci_get_drvdata(pdev);
5624
5625 airo_print_info(dev->name, "Unregistering...");
5626 stop_airo_card(dev, 1);
5627 pci_disable_device(pdev);
5628 }
5629
airo_pci_suspend(struct device * dev_d)5630 static int __maybe_unused airo_pci_suspend(struct device *dev_d)
5631 {
5632 struct net_device *dev = dev_get_drvdata(dev_d);
5633 struct airo_info *ai = dev->ml_priv;
5634 Cmd cmd;
5635 Resp rsp;
5636
5637 if (!ai->SSID)
5638 ai->SSID = kmalloc(sizeof(SsidRid), GFP_KERNEL);
5639 if (!ai->SSID)
5640 return -ENOMEM;
5641 readSsidRid(ai, ai->SSID);
5642 memset(&cmd, 0, sizeof(cmd));
5643 /* the lock will be released at the end of the resume callback */
5644 if (down_interruptible(&ai->sem))
5645 return -EAGAIN;
5646 disable_MAC(ai, 0);
5647 netif_device_detach(dev);
5648 ai->power = PMSG_SUSPEND;
5649 cmd.cmd = HOSTSLEEP;
5650 issuecommand(ai, &cmd, &rsp, true);
5651
5652 device_wakeup_enable(dev_d);
5653 return 0;
5654 }
5655
airo_pci_resume(struct device * dev_d)5656 static int __maybe_unused airo_pci_resume(struct device *dev_d)
5657 {
5658 struct net_device *dev = dev_get_drvdata(dev_d);
5659 struct airo_info *ai = dev->ml_priv;
5660 pci_power_t prev_state = to_pci_dev(dev_d)->current_state;
5661
5662 device_wakeup_disable(dev_d);
5663
5664 if (prev_state != PCI_D1) {
5665 reset_card(dev, 0);
5666 mpi_init_descriptors(ai);
5667 setup_card(ai, dev->dev_addr, 0);
5668 clear_bit(FLAG_RADIO_OFF, &ai->flags);
5669 clear_bit(FLAG_PENDING_XMIT, &ai->flags);
5670 } else {
5671 OUT4500(ai, EVACK, EV_AWAKEN);
5672 OUT4500(ai, EVACK, EV_AWAKEN);
5673 msleep(100);
5674 }
5675
5676 set_bit(FLAG_COMMIT, &ai->flags);
5677 disable_MAC(ai, 0);
5678 msleep(200);
5679 if (ai->SSID) {
5680 writeSsidRid(ai, ai->SSID, 0);
5681 kfree(ai->SSID);
5682 ai->SSID = NULL;
5683 }
5684 writeAPListRid(ai, &ai->APList, 0);
5685 writeConfigRid(ai, 0);
5686 enable_MAC(ai, 0);
5687 ai->power = PMSG_ON;
5688 netif_device_attach(dev);
5689 netif_wake_queue(dev);
5690 enable_interrupts(ai);
5691 up(&ai->sem);
5692 return 0;
5693 }
5694 #endif
5695
airo_init_module(void)5696 static int __init airo_init_module(void)
5697 {
5698 int i;
5699
5700 proc_kuid = make_kuid(&init_user_ns, proc_uid);
5701 proc_kgid = make_kgid(&init_user_ns, proc_gid);
5702 if (!uid_valid(proc_kuid) || !gid_valid(proc_kgid))
5703 return -EINVAL;
5704
5705 airo_entry = proc_mkdir_mode("driver/aironet", airo_perm, NULL);
5706
5707 if (airo_entry)
5708 proc_set_user(airo_entry, proc_kuid, proc_kgid);
5709
5710 for (i = 0; i < 4 && io[i] && irq[i]; i++) {
5711 airo_print_info("", "Trying to configure ISA adapter at irq=%d "
5712 "io = 0x%x", irq[i], io[i]);
5713 if (init_airo_card(irq[i], io[i], 0, NULL)) {
5714 /* do nothing */ ;
5715 }
5716 }
5717
5718 #ifdef CONFIG_PCI
5719 airo_print_info("", "Probing for PCI adapters");
5720 i = pci_register_driver(&airo_driver);
5721 airo_print_info("", "Finished probing for PCI adapters");
5722
5723 if (i) {
5724 remove_proc_entry("driver/aironet", NULL);
5725 return i;
5726 }
5727 #endif
5728
5729 /* Always exit with success, as we are a library module
5730 * as well as a driver module
5731 */
5732 return 0;
5733 }
5734
airo_cleanup_module(void)5735 static void __exit airo_cleanup_module(void)
5736 {
5737 struct airo_info *ai;
5738 while (!list_empty(&airo_devices)) {
5739 ai = list_entry(airo_devices.next, struct airo_info, dev_list);
5740 airo_print_info(ai->dev->name, "Unregistering...");
5741 stop_airo_card(ai->dev, 1);
5742 }
5743 #ifdef CONFIG_PCI
5744 pci_unregister_driver(&airo_driver);
5745 #endif
5746 remove_proc_entry("driver/aironet", NULL);
5747 }
5748
5749 /*
5750 * Initial Wireless Extension code for Aironet driver by :
5751 * Jean Tourrilhes <jt@hpl.hp.com> - HPL - 17 November 00
5752 * Conversion to new driver API by :
5753 * Jean Tourrilhes <jt@hpl.hp.com> - HPL - 26 March 02
5754 * Javier also did a good amount of work here, adding some new extensions
5755 * and fixing my code. Let's just say that without him this code just
5756 * would not work at all... - Jean II
5757 */
5758
airo_rssi_to_dbm(tdsRssiEntry * rssi_rid,u8 rssi)5759 static u8 airo_rssi_to_dbm (tdsRssiEntry *rssi_rid, u8 rssi)
5760 {
5761 if (!rssi_rid)
5762 return 0;
5763
5764 return (0x100 - rssi_rid[rssi].rssidBm);
5765 }
5766
airo_dbm_to_pct(tdsRssiEntry * rssi_rid,u8 dbm)5767 static u8 airo_dbm_to_pct (tdsRssiEntry *rssi_rid, u8 dbm)
5768 {
5769 int i;
5770
5771 if (!rssi_rid)
5772 return 0;
5773
5774 for (i = 0; i < 256; i++)
5775 if (rssi_rid[i].rssidBm == dbm)
5776 return rssi_rid[i].rssipct;
5777
5778 return 0;
5779 }
5780
5781
airo_get_quality(StatusRid * status_rid,CapabilityRid * cap_rid)5782 static int airo_get_quality (StatusRid *status_rid, CapabilityRid *cap_rid)
5783 {
5784 int quality = 0;
5785 u16 sq;
5786
5787 if ((status_rid->mode & cpu_to_le16(0x3f)) != cpu_to_le16(0x3f))
5788 return 0;
5789
5790 if (!(cap_rid->hardCap & cpu_to_le16(8)))
5791 return 0;
5792
5793 sq = le16_to_cpu(status_rid->signalQuality);
5794 if (memcmp(cap_rid->prodName, "350", 3))
5795 if (sq > 0x20)
5796 quality = 0;
5797 else
5798 quality = 0x20 - sq;
5799 else
5800 if (sq > 0xb0)
5801 quality = 0;
5802 else if (sq < 0x10)
5803 quality = 0xa0;
5804 else
5805 quality = 0xb0 - sq;
5806 return quality;
5807 }
5808
5809 #define airo_get_max_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x20 : 0xa0)
5810 #define airo_get_avg_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x10 : 0x50)
5811
5812 /*------------------------------------------------------------------*/
5813 /*
5814 * Wireless Handler : get protocol name
5815 */
airo_get_name(struct net_device * dev,struct iw_request_info * info,char * cwrq,char * extra)5816 static int airo_get_name(struct net_device *dev,
5817 struct iw_request_info *info,
5818 char *cwrq,
5819 char *extra)
5820 {
5821 strcpy(cwrq, "IEEE 802.11-DS");
5822 return 0;
5823 }
5824
5825 /*------------------------------------------------------------------*/
5826 /*
5827 * Wireless Handler : set frequency
5828 */
airo_set_freq(struct net_device * dev,struct iw_request_info * info,struct iw_freq * fwrq,char * extra)5829 static int airo_set_freq(struct net_device *dev,
5830 struct iw_request_info *info,
5831 struct iw_freq *fwrq,
5832 char *extra)
5833 {
5834 struct airo_info *local = dev->ml_priv;
5835 int rc = -EINPROGRESS; /* Call commit handler */
5836
5837 /* If setting by frequency, convert to a channel */
5838 if (fwrq->e == 1) {
5839 int f = fwrq->m / 100000;
5840
5841 /* Hack to fall through... */
5842 fwrq->e = 0;
5843 fwrq->m = ieee80211_frequency_to_channel(f);
5844 }
5845 /* Setting by channel number */
5846 if (fwrq->m < 0 || fwrq->m > 1000 || fwrq->e > 0)
5847 rc = -EOPNOTSUPP;
5848 else {
5849 int channel = fwrq->m;
5850 /* We should do a better check than that,
5851 * based on the card capability !!! */
5852 if ((channel < 1) || (channel > 14)) {
5853 airo_print_dbg(dev->name, "New channel value of %d is invalid!",
5854 fwrq->m);
5855 rc = -EINVAL;
5856 } else {
5857 readConfigRid(local, 1);
5858 /* Yes ! We can set it !!! */
5859 local->config.channelSet = cpu_to_le16(channel);
5860 set_bit (FLAG_COMMIT, &local->flags);
5861 }
5862 }
5863 return rc;
5864 }
5865
5866 /*------------------------------------------------------------------*/
5867 /*
5868 * Wireless Handler : get frequency
5869 */
airo_get_freq(struct net_device * dev,struct iw_request_info * info,struct iw_freq * fwrq,char * extra)5870 static int airo_get_freq(struct net_device *dev,
5871 struct iw_request_info *info,
5872 struct iw_freq *fwrq,
5873 char *extra)
5874 {
5875 struct airo_info *local = dev->ml_priv;
5876 StatusRid status_rid; /* Card status info */
5877 int ch;
5878
5879 readConfigRid(local, 1);
5880 if ((local->config.opmode & MODE_CFG_MASK) == MODE_STA_ESS)
5881 status_rid.channel = local->config.channelSet;
5882 else
5883 readStatusRid(local, &status_rid, 1);
5884
5885 ch = le16_to_cpu(status_rid.channel);
5886 if ((ch > 0) && (ch < 15)) {
5887 fwrq->m = 100000 *
5888 ieee80211_channel_to_frequency(ch, NL80211_BAND_2GHZ);
5889 fwrq->e = 1;
5890 } else {
5891 fwrq->m = ch;
5892 fwrq->e = 0;
5893 }
5894
5895 return 0;
5896 }
5897
5898 /*------------------------------------------------------------------*/
5899 /*
5900 * Wireless Handler : set ESSID
5901 */
airo_set_essid(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)5902 static int airo_set_essid(struct net_device *dev,
5903 struct iw_request_info *info,
5904 struct iw_point *dwrq,
5905 char *extra)
5906 {
5907 struct airo_info *local = dev->ml_priv;
5908 SsidRid SSID_rid; /* SSIDs */
5909
5910 /* Reload the list of current SSID */
5911 readSsidRid(local, &SSID_rid);
5912
5913 /* Check if we asked for `any' */
5914 if (dwrq->flags == 0) {
5915 /* Just send an empty SSID list */
5916 memset(&SSID_rid, 0, sizeof(SSID_rid));
5917 } else {
5918 unsigned index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
5919
5920 /* Check the size of the string */
5921 if (dwrq->length > IW_ESSID_MAX_SIZE)
5922 return -E2BIG ;
5923
5924 /* Check if index is valid */
5925 if (index >= ARRAY_SIZE(SSID_rid.ssids))
5926 return -EINVAL;
5927
5928 /* Set the SSID */
5929 memset(SSID_rid.ssids[index].ssid, 0,
5930 sizeof(SSID_rid.ssids[index].ssid));
5931 memcpy(SSID_rid.ssids[index].ssid, extra, dwrq->length);
5932 SSID_rid.ssids[index].len = cpu_to_le16(dwrq->length);
5933 }
5934 SSID_rid.len = cpu_to_le16(sizeof(SSID_rid));
5935 /* Write it to the card */
5936 disable_MAC(local, 1);
5937 writeSsidRid(local, &SSID_rid, 1);
5938 enable_MAC(local, 1);
5939
5940 return 0;
5941 }
5942
5943 /*------------------------------------------------------------------*/
5944 /*
5945 * Wireless Handler : get ESSID
5946 */
airo_get_essid(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)5947 static int airo_get_essid(struct net_device *dev,
5948 struct iw_request_info *info,
5949 struct iw_point *dwrq,
5950 char *extra)
5951 {
5952 struct airo_info *local = dev->ml_priv;
5953 StatusRid status_rid; /* Card status info */
5954
5955 readStatusRid(local, &status_rid, 1);
5956
5957 /* Note : if dwrq->flags != 0, we should
5958 * get the relevant SSID from the SSID list... */
5959
5960 /* Get the current SSID */
5961 memcpy(extra, status_rid.SSID, le16_to_cpu(status_rid.SSIDlen));
5962 /* If none, we may want to get the one that was set */
5963
5964 /* Push it out ! */
5965 dwrq->length = le16_to_cpu(status_rid.SSIDlen);
5966 dwrq->flags = 1; /* active */
5967
5968 return 0;
5969 }
5970
5971 /*------------------------------------------------------------------*/
5972 /*
5973 * Wireless Handler : set AP address
5974 */
airo_set_wap(struct net_device * dev,struct iw_request_info * info,struct sockaddr * awrq,char * extra)5975 static int airo_set_wap(struct net_device *dev,
5976 struct iw_request_info *info,
5977 struct sockaddr *awrq,
5978 char *extra)
5979 {
5980 struct airo_info *local = dev->ml_priv;
5981 Cmd cmd;
5982 Resp rsp;
5983 APListRid *APList_rid = &local->APList;
5984
5985 if (awrq->sa_family != ARPHRD_ETHER)
5986 return -EINVAL;
5987 else if (is_broadcast_ether_addr(awrq->sa_data) ||
5988 is_zero_ether_addr(awrq->sa_data)) {
5989 memset(&cmd, 0, sizeof(cmd));
5990 cmd.cmd = CMD_LOSE_SYNC;
5991 if (down_interruptible(&local->sem))
5992 return -ERESTARTSYS;
5993 issuecommand(local, &cmd, &rsp, true);
5994 up(&local->sem);
5995 } else {
5996 memset(APList_rid, 0, sizeof(*APList_rid));
5997 APList_rid->len = cpu_to_le16(sizeof(*APList_rid));
5998 memcpy(APList_rid->ap[0], awrq->sa_data, ETH_ALEN);
5999 disable_MAC(local, 1);
6000 writeAPListRid(local, APList_rid, 1);
6001 enable_MAC(local, 1);
6002 }
6003 return 0;
6004 }
6005
6006 /*------------------------------------------------------------------*/
6007 /*
6008 * Wireless Handler : get AP address
6009 */
airo_get_wap(struct net_device * dev,struct iw_request_info * info,struct sockaddr * awrq,char * extra)6010 static int airo_get_wap(struct net_device *dev,
6011 struct iw_request_info *info,
6012 struct sockaddr *awrq,
6013 char *extra)
6014 {
6015 struct airo_info *local = dev->ml_priv;
6016 StatusRid status_rid; /* Card status info */
6017
6018 readStatusRid(local, &status_rid, 1);
6019
6020 /* Tentative. This seems to work, wow, I'm lucky !!! */
6021 memcpy(awrq->sa_data, status_rid.bssid[0], ETH_ALEN);
6022 awrq->sa_family = ARPHRD_ETHER;
6023
6024 return 0;
6025 }
6026
6027 /*------------------------------------------------------------------*/
6028 /*
6029 * Wireless Handler : set Nickname
6030 */
airo_set_nick(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6031 static int airo_set_nick(struct net_device *dev,
6032 struct iw_request_info *info,
6033 struct iw_point *dwrq,
6034 char *extra)
6035 {
6036 struct airo_info *local = dev->ml_priv;
6037
6038 /* Check the size of the string */
6039 if (dwrq->length > 16) {
6040 return -E2BIG;
6041 }
6042 readConfigRid(local, 1);
6043 memset(local->config.nodeName, 0, sizeof(local->config.nodeName));
6044 memcpy(local->config.nodeName, extra, dwrq->length);
6045 set_bit (FLAG_COMMIT, &local->flags);
6046
6047 return -EINPROGRESS; /* Call commit handler */
6048 }
6049
6050 /*------------------------------------------------------------------*/
6051 /*
6052 * Wireless Handler : get Nickname
6053 */
airo_get_nick(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6054 static int airo_get_nick(struct net_device *dev,
6055 struct iw_request_info *info,
6056 struct iw_point *dwrq,
6057 char *extra)
6058 {
6059 struct airo_info *local = dev->ml_priv;
6060
6061 readConfigRid(local, 1);
6062 strncpy(extra, local->config.nodeName, 16);
6063 extra[16] = '\0';
6064 dwrq->length = strlen(extra);
6065
6066 return 0;
6067 }
6068
6069 /*------------------------------------------------------------------*/
6070 /*
6071 * Wireless Handler : set Bit-Rate
6072 */
airo_set_rate(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6073 static int airo_set_rate(struct net_device *dev,
6074 struct iw_request_info *info,
6075 struct iw_param *vwrq,
6076 char *extra)
6077 {
6078 struct airo_info *local = dev->ml_priv;
6079 CapabilityRid cap_rid; /* Card capability info */
6080 u8 brate = 0;
6081 int i;
6082
6083 /* First : get a valid bit rate value */
6084 readCapabilityRid(local, &cap_rid, 1);
6085
6086 /* Which type of value ? */
6087 if ((vwrq->value < 8) && (vwrq->value >= 0)) {
6088 /* Setting by rate index */
6089 /* Find value in the magic rate table */
6090 brate = cap_rid.supportedRates[vwrq->value];
6091 } else {
6092 /* Setting by frequency value */
6093 u8 normvalue = (u8) (vwrq->value/500000);
6094
6095 /* Check if rate is valid */
6096 for (i = 0 ; i < 8 ; i++) {
6097 if (normvalue == cap_rid.supportedRates[i]) {
6098 brate = normvalue;
6099 break;
6100 }
6101 }
6102 }
6103 /* -1 designed the max rate (mostly auto mode) */
6104 if (vwrq->value == -1) {
6105 /* Get the highest available rate */
6106 for (i = 0 ; i < 8 ; i++) {
6107 if (cap_rid.supportedRates[i] == 0)
6108 break;
6109 }
6110 if (i != 0)
6111 brate = cap_rid.supportedRates[i - 1];
6112 }
6113 /* Check that it is valid */
6114 if (brate == 0) {
6115 return -EINVAL;
6116 }
6117
6118 readConfigRid(local, 1);
6119 /* Now, check if we want a fixed or auto value */
6120 if (vwrq->fixed == 0) {
6121 /* Fill all the rates up to this max rate */
6122 memset(local->config.rates, 0, 8);
6123 for (i = 0 ; i < 8 ; i++) {
6124 local->config.rates[i] = cap_rid.supportedRates[i];
6125 if (local->config.rates[i] == brate)
6126 break;
6127 }
6128 } else {
6129 /* Fixed mode */
6130 /* One rate, fixed */
6131 memset(local->config.rates, 0, 8);
6132 local->config.rates[0] = brate;
6133 }
6134 set_bit (FLAG_COMMIT, &local->flags);
6135
6136 return -EINPROGRESS; /* Call commit handler */
6137 }
6138
6139 /*------------------------------------------------------------------*/
6140 /*
6141 * Wireless Handler : get Bit-Rate
6142 */
airo_get_rate(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6143 static int airo_get_rate(struct net_device *dev,
6144 struct iw_request_info *info,
6145 struct iw_param *vwrq,
6146 char *extra)
6147 {
6148 struct airo_info *local = dev->ml_priv;
6149 StatusRid status_rid; /* Card status info */
6150 int ret;
6151
6152 ret = readStatusRid(local, &status_rid, 1);
6153 if (ret)
6154 return -EBUSY;
6155
6156 vwrq->value = le16_to_cpu(status_rid.currentXmitRate) * 500000;
6157 /* If more than one rate, set auto */
6158 readConfigRid(local, 1);
6159 vwrq->fixed = (local->config.rates[1] == 0);
6160
6161 return 0;
6162 }
6163
6164 /*------------------------------------------------------------------*/
6165 /*
6166 * Wireless Handler : set RTS threshold
6167 */
airo_set_rts(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6168 static int airo_set_rts(struct net_device *dev,
6169 struct iw_request_info *info,
6170 struct iw_param *vwrq,
6171 char *extra)
6172 {
6173 struct airo_info *local = dev->ml_priv;
6174 int rthr = vwrq->value;
6175
6176 if (vwrq->disabled)
6177 rthr = AIRO_DEF_MTU;
6178 if ((rthr < 0) || (rthr > AIRO_DEF_MTU)) {
6179 return -EINVAL;
6180 }
6181 readConfigRid(local, 1);
6182 local->config.rtsThres = cpu_to_le16(rthr);
6183 set_bit (FLAG_COMMIT, &local->flags);
6184
6185 return -EINPROGRESS; /* Call commit handler */
6186 }
6187
6188 /*------------------------------------------------------------------*/
6189 /*
6190 * Wireless Handler : get RTS threshold
6191 */
airo_get_rts(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6192 static int airo_get_rts(struct net_device *dev,
6193 struct iw_request_info *info,
6194 struct iw_param *vwrq,
6195 char *extra)
6196 {
6197 struct airo_info *local = dev->ml_priv;
6198
6199 readConfigRid(local, 1);
6200 vwrq->value = le16_to_cpu(local->config.rtsThres);
6201 vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU);
6202 vwrq->fixed = 1;
6203
6204 return 0;
6205 }
6206
6207 /*------------------------------------------------------------------*/
6208 /*
6209 * Wireless Handler : set Fragmentation threshold
6210 */
airo_set_frag(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6211 static int airo_set_frag(struct net_device *dev,
6212 struct iw_request_info *info,
6213 struct iw_param *vwrq,
6214 char *extra)
6215 {
6216 struct airo_info *local = dev->ml_priv;
6217 int fthr = vwrq->value;
6218
6219 if (vwrq->disabled)
6220 fthr = AIRO_DEF_MTU;
6221 if ((fthr < 256) || (fthr > AIRO_DEF_MTU)) {
6222 return -EINVAL;
6223 }
6224 fthr &= ~0x1; /* Get an even value - is it really needed ??? */
6225 readConfigRid(local, 1);
6226 local->config.fragThresh = cpu_to_le16(fthr);
6227 set_bit (FLAG_COMMIT, &local->flags);
6228
6229 return -EINPROGRESS; /* Call commit handler */
6230 }
6231
6232 /*------------------------------------------------------------------*/
6233 /*
6234 * Wireless Handler : get Fragmentation threshold
6235 */
airo_get_frag(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6236 static int airo_get_frag(struct net_device *dev,
6237 struct iw_request_info *info,
6238 struct iw_param *vwrq,
6239 char *extra)
6240 {
6241 struct airo_info *local = dev->ml_priv;
6242
6243 readConfigRid(local, 1);
6244 vwrq->value = le16_to_cpu(local->config.fragThresh);
6245 vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU);
6246 vwrq->fixed = 1;
6247
6248 return 0;
6249 }
6250
6251 /*------------------------------------------------------------------*/
6252 /*
6253 * Wireless Handler : set Mode of Operation
6254 */
airo_set_mode(struct net_device * dev,struct iw_request_info * info,__u32 * uwrq,char * extra)6255 static int airo_set_mode(struct net_device *dev,
6256 struct iw_request_info *info,
6257 __u32 *uwrq,
6258 char *extra)
6259 {
6260 struct airo_info *local = dev->ml_priv;
6261 int reset = 0;
6262
6263 readConfigRid(local, 1);
6264 if (sniffing_mode(local))
6265 reset = 1;
6266
6267 switch(*uwrq) {
6268 case IW_MODE_ADHOC:
6269 local->config.opmode &= ~MODE_CFG_MASK;
6270 local->config.opmode |= MODE_STA_IBSS;
6271 local->config.rmode &= ~RXMODE_FULL_MASK;
6272 local->config.scanMode = SCANMODE_ACTIVE;
6273 clear_bit (FLAG_802_11, &local->flags);
6274 break;
6275 case IW_MODE_INFRA:
6276 local->config.opmode &= ~MODE_CFG_MASK;
6277 local->config.opmode |= MODE_STA_ESS;
6278 local->config.rmode &= ~RXMODE_FULL_MASK;
6279 local->config.scanMode = SCANMODE_ACTIVE;
6280 clear_bit (FLAG_802_11, &local->flags);
6281 break;
6282 case IW_MODE_MASTER:
6283 local->config.opmode &= ~MODE_CFG_MASK;
6284 local->config.opmode |= MODE_AP;
6285 local->config.rmode &= ~RXMODE_FULL_MASK;
6286 local->config.scanMode = SCANMODE_ACTIVE;
6287 clear_bit (FLAG_802_11, &local->flags);
6288 break;
6289 case IW_MODE_REPEAT:
6290 local->config.opmode &= ~MODE_CFG_MASK;
6291 local->config.opmode |= MODE_AP_RPTR;
6292 local->config.rmode &= ~RXMODE_FULL_MASK;
6293 local->config.scanMode = SCANMODE_ACTIVE;
6294 clear_bit (FLAG_802_11, &local->flags);
6295 break;
6296 case IW_MODE_MONITOR:
6297 local->config.opmode &= ~MODE_CFG_MASK;
6298 local->config.opmode |= MODE_STA_ESS;
6299 local->config.rmode &= ~RXMODE_FULL_MASK;
6300 local->config.rmode |= RXMODE_RFMON | RXMODE_DISABLE_802_3_HEADER;
6301 local->config.scanMode = SCANMODE_PASSIVE;
6302 set_bit (FLAG_802_11, &local->flags);
6303 break;
6304 default:
6305 return -EINVAL;
6306 }
6307 if (reset)
6308 set_bit (FLAG_RESET, &local->flags);
6309 set_bit (FLAG_COMMIT, &local->flags);
6310
6311 return -EINPROGRESS; /* Call commit handler */
6312 }
6313
6314 /*------------------------------------------------------------------*/
6315 /*
6316 * Wireless Handler : get Mode of Operation
6317 */
airo_get_mode(struct net_device * dev,struct iw_request_info * info,__u32 * uwrq,char * extra)6318 static int airo_get_mode(struct net_device *dev,
6319 struct iw_request_info *info,
6320 __u32 *uwrq,
6321 char *extra)
6322 {
6323 struct airo_info *local = dev->ml_priv;
6324
6325 readConfigRid(local, 1);
6326 /* If not managed, assume it's ad-hoc */
6327 switch (local->config.opmode & MODE_CFG_MASK) {
6328 case MODE_STA_ESS:
6329 *uwrq = IW_MODE_INFRA;
6330 break;
6331 case MODE_AP:
6332 *uwrq = IW_MODE_MASTER;
6333 break;
6334 case MODE_AP_RPTR:
6335 *uwrq = IW_MODE_REPEAT;
6336 break;
6337 default:
6338 *uwrq = IW_MODE_ADHOC;
6339 }
6340
6341 return 0;
6342 }
6343
valid_index(struct airo_info * ai,int index)6344 static inline int valid_index(struct airo_info *ai, int index)
6345 {
6346 return (index >= 0) && (index <= ai->max_wep_idx);
6347 }
6348
6349 /*------------------------------------------------------------------*/
6350 /*
6351 * Wireless Handler : set Encryption Key
6352 */
airo_set_encode(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6353 static int airo_set_encode(struct net_device *dev,
6354 struct iw_request_info *info,
6355 struct iw_point *dwrq,
6356 char *extra)
6357 {
6358 struct airo_info *local = dev->ml_priv;
6359 int perm = (dwrq->flags & IW_ENCODE_TEMP ? 0 : 1);
6360 __le16 currentAuthType = local->config.authType;
6361 int rc = 0;
6362
6363 if (!local->wep_capable)
6364 return -EOPNOTSUPP;
6365
6366 readConfigRid(local, 1);
6367
6368 /* Basic checking: do we have a key to set ?
6369 * Note : with the new API, it's impossible to get a NULL pointer.
6370 * Therefore, we need to check a key size == 0 instead.
6371 * New version of iwconfig properly set the IW_ENCODE_NOKEY flag
6372 * when no key is present (only change flags), but older versions
6373 * don't do it. - Jean II */
6374 if (dwrq->length > 0) {
6375 wep_key_t key;
6376 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6377 int current_index;
6378
6379 /* Check the size of the key */
6380 if (dwrq->length > MAX_KEY_SIZE) {
6381 return -EINVAL;
6382 }
6383
6384 current_index = get_wep_tx_idx(local);
6385 if (current_index < 0)
6386 current_index = 0;
6387
6388 /* Check the index (none -> use current) */
6389 if (!valid_index(local, index))
6390 index = current_index;
6391
6392 /* Set the length */
6393 if (dwrq->length > MIN_KEY_SIZE)
6394 key.len = MAX_KEY_SIZE;
6395 else
6396 key.len = MIN_KEY_SIZE;
6397 /* Check if the key is not marked as invalid */
6398 if (!(dwrq->flags & IW_ENCODE_NOKEY)) {
6399 /* Cleanup */
6400 memset(key.key, 0, MAX_KEY_SIZE);
6401 /* Copy the key in the driver */
6402 memcpy(key.key, extra, dwrq->length);
6403 /* Send the key to the card */
6404 rc = set_wep_key(local, index, key.key, key.len, perm, 1);
6405 if (rc < 0) {
6406 airo_print_err(local->dev->name, "failed to set"
6407 " WEP key at index %d: %d.",
6408 index, rc);
6409 return rc;
6410 }
6411 }
6412 /* WE specify that if a valid key is set, encryption
6413 * should be enabled (user may turn it off later)
6414 * This is also how "iwconfig ethX key on" works */
6415 if ((index == current_index) && (key.len > 0) &&
6416 (local->config.authType == AUTH_OPEN))
6417 set_auth_type(local, AUTH_ENCRYPT);
6418 } else {
6419 /* Do we want to just set the transmit key index ? */
6420 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6421 if (valid_index(local, index)) {
6422 rc = set_wep_tx_idx(local, index, perm, 1);
6423 if (rc < 0) {
6424 airo_print_err(local->dev->name, "failed to set"
6425 " WEP transmit index to %d: %d.",
6426 index, rc);
6427 return rc;
6428 }
6429 } else {
6430 /* Don't complain if only change the mode */
6431 if (!(dwrq->flags & IW_ENCODE_MODE))
6432 return -EINVAL;
6433 }
6434 }
6435 /* Read the flags */
6436 if (dwrq->flags & IW_ENCODE_DISABLED)
6437 set_auth_type(local, AUTH_OPEN); /* disable encryption */
6438 if (dwrq->flags & IW_ENCODE_RESTRICTED)
6439 set_auth_type(local, AUTH_SHAREDKEY); /* Only Both */
6440 if (dwrq->flags & IW_ENCODE_OPEN)
6441 set_auth_type(local, AUTH_ENCRYPT); /* Only Wep */
6442 /* Commit the changes to flags if needed */
6443 if (local->config.authType != currentAuthType)
6444 set_bit (FLAG_COMMIT, &local->flags);
6445 return -EINPROGRESS; /* Call commit handler */
6446 }
6447
6448 /*------------------------------------------------------------------*/
6449 /*
6450 * Wireless Handler : get Encryption Key
6451 */
airo_get_encode(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6452 static int airo_get_encode(struct net_device *dev,
6453 struct iw_request_info *info,
6454 struct iw_point *dwrq,
6455 char *extra)
6456 {
6457 struct airo_info *local = dev->ml_priv;
6458 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6459 int wep_key_len;
6460 u8 buf[16];
6461
6462 if (!local->wep_capable)
6463 return -EOPNOTSUPP;
6464
6465 readConfigRid(local, 1);
6466
6467 /* Check encryption mode */
6468 switch(local->config.authType) {
6469 case AUTH_ENCRYPT:
6470 dwrq->flags = IW_ENCODE_OPEN;
6471 break;
6472 case AUTH_SHAREDKEY:
6473 dwrq->flags = IW_ENCODE_RESTRICTED;
6474 break;
6475 default:
6476 case AUTH_OPEN:
6477 dwrq->flags = IW_ENCODE_DISABLED;
6478 break;
6479 }
6480 /* We can't return the key, so set the proper flag and return zero */
6481 dwrq->flags |= IW_ENCODE_NOKEY;
6482 memset(extra, 0, 16);
6483
6484 /* Which key do we want ? -1 -> tx index */
6485 if (!valid_index(local, index)) {
6486 index = get_wep_tx_idx(local);
6487 if (index < 0)
6488 index = 0;
6489 }
6490 dwrq->flags |= index + 1;
6491
6492 /* Copy the key to the user buffer */
6493 wep_key_len = get_wep_key(local, index, &buf[0], sizeof(buf));
6494 if (wep_key_len < 0) {
6495 dwrq->length = 0;
6496 } else {
6497 dwrq->length = wep_key_len;
6498 memcpy(extra, buf, dwrq->length);
6499 }
6500
6501 return 0;
6502 }
6503
6504 /*------------------------------------------------------------------*/
6505 /*
6506 * Wireless Handler : set extended Encryption parameters
6507 */
airo_set_encodeext(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6508 static int airo_set_encodeext(struct net_device *dev,
6509 struct iw_request_info *info,
6510 union iwreq_data *wrqu,
6511 char *extra)
6512 {
6513 struct airo_info *local = dev->ml_priv;
6514 struct iw_point *encoding = &wrqu->encoding;
6515 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6516 int perm = (encoding->flags & IW_ENCODE_TEMP ? 0 : 1);
6517 __le16 currentAuthType = local->config.authType;
6518 int idx, key_len, alg = ext->alg, set_key = 1, rc;
6519 wep_key_t key;
6520
6521 if (!local->wep_capable)
6522 return -EOPNOTSUPP;
6523
6524 readConfigRid(local, 1);
6525
6526 /* Determine and validate the key index */
6527 idx = encoding->flags & IW_ENCODE_INDEX;
6528 if (idx) {
6529 if (!valid_index(local, idx - 1))
6530 return -EINVAL;
6531 idx--;
6532 } else {
6533 idx = get_wep_tx_idx(local);
6534 if (idx < 0)
6535 idx = 0;
6536 }
6537
6538 if (encoding->flags & IW_ENCODE_DISABLED)
6539 alg = IW_ENCODE_ALG_NONE;
6540
6541 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
6542 /* Only set transmit key index here, actual
6543 * key is set below if needed.
6544 */
6545 rc = set_wep_tx_idx(local, idx, perm, 1);
6546 if (rc < 0) {
6547 airo_print_err(local->dev->name, "failed to set "
6548 "WEP transmit index to %d: %d.",
6549 idx, rc);
6550 return rc;
6551 }
6552 set_key = ext->key_len > 0 ? 1 : 0;
6553 }
6554
6555 if (set_key) {
6556 /* Set the requested key first */
6557 memset(key.key, 0, MAX_KEY_SIZE);
6558 switch (alg) {
6559 case IW_ENCODE_ALG_NONE:
6560 key.len = 0;
6561 break;
6562 case IW_ENCODE_ALG_WEP:
6563 if (ext->key_len > MIN_KEY_SIZE) {
6564 key.len = MAX_KEY_SIZE;
6565 } else if (ext->key_len > 0) {
6566 key.len = MIN_KEY_SIZE;
6567 } else {
6568 return -EINVAL;
6569 }
6570 key_len = min (ext->key_len, key.len);
6571 memcpy(key.key, ext->key, key_len);
6572 break;
6573 default:
6574 return -EINVAL;
6575 }
6576 if (key.len == 0) {
6577 rc = set_wep_tx_idx(local, idx, perm, 1);
6578 if (rc < 0) {
6579 airo_print_err(local->dev->name,
6580 "failed to set WEP transmit index to %d: %d.",
6581 idx, rc);
6582 return rc;
6583 }
6584 } else {
6585 rc = set_wep_key(local, idx, key.key, key.len, perm, 1);
6586 if (rc < 0) {
6587 airo_print_err(local->dev->name,
6588 "failed to set WEP key at index %d: %d.",
6589 idx, rc);
6590 return rc;
6591 }
6592 }
6593 }
6594
6595 /* Read the flags */
6596 if (encoding->flags & IW_ENCODE_DISABLED)
6597 set_auth_type(local, AUTH_OPEN); /* disable encryption */
6598 if (encoding->flags & IW_ENCODE_RESTRICTED)
6599 set_auth_type(local, AUTH_SHAREDKEY); /* Only Both */
6600 if (encoding->flags & IW_ENCODE_OPEN)
6601 set_auth_type(local, AUTH_ENCRYPT);
6602 /* Commit the changes to flags if needed */
6603 if (local->config.authType != currentAuthType)
6604 set_bit (FLAG_COMMIT, &local->flags);
6605
6606 return -EINPROGRESS;
6607 }
6608
6609
6610 /*------------------------------------------------------------------*/
6611 /*
6612 * Wireless Handler : get extended Encryption parameters
6613 */
airo_get_encodeext(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6614 static int airo_get_encodeext(struct net_device *dev,
6615 struct iw_request_info *info,
6616 union iwreq_data *wrqu,
6617 char *extra)
6618 {
6619 struct airo_info *local = dev->ml_priv;
6620 struct iw_point *encoding = &wrqu->encoding;
6621 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6622 int idx, max_key_len, wep_key_len;
6623 u8 buf[16];
6624
6625 if (!local->wep_capable)
6626 return -EOPNOTSUPP;
6627
6628 readConfigRid(local, 1);
6629
6630 max_key_len = encoding->length - sizeof(*ext);
6631 if (max_key_len < 0)
6632 return -EINVAL;
6633
6634 idx = encoding->flags & IW_ENCODE_INDEX;
6635 if (idx) {
6636 if (!valid_index(local, idx - 1))
6637 return -EINVAL;
6638 idx--;
6639 } else {
6640 idx = get_wep_tx_idx(local);
6641 if (idx < 0)
6642 idx = 0;
6643 }
6644
6645 encoding->flags = idx + 1;
6646 memset(ext, 0, sizeof(*ext));
6647
6648 /* Check encryption mode */
6649 switch(local->config.authType) {
6650 case AUTH_ENCRYPT:
6651 encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED;
6652 break;
6653 case AUTH_SHAREDKEY:
6654 encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED;
6655 break;
6656 default:
6657 case AUTH_OPEN:
6658 encoding->flags = IW_ENCODE_ALG_NONE | IW_ENCODE_DISABLED;
6659 break;
6660 }
6661 /* We can't return the key, so set the proper flag and return zero */
6662 encoding->flags |= IW_ENCODE_NOKEY;
6663 memset(extra, 0, 16);
6664
6665 /* Copy the key to the user buffer */
6666 wep_key_len = get_wep_key(local, idx, &buf[0], sizeof(buf));
6667 if (wep_key_len < 0) {
6668 ext->key_len = 0;
6669 } else {
6670 ext->key_len = wep_key_len;
6671 memcpy(extra, buf, ext->key_len);
6672 }
6673
6674 return 0;
6675 }
6676
6677
6678 /*------------------------------------------------------------------*/
6679 /*
6680 * Wireless Handler : set extended authentication parameters
6681 */
airo_set_auth(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6682 static int airo_set_auth(struct net_device *dev,
6683 struct iw_request_info *info,
6684 union iwreq_data *wrqu, char *extra)
6685 {
6686 struct airo_info *local = dev->ml_priv;
6687 struct iw_param *param = &wrqu->param;
6688 __le16 currentAuthType = local->config.authType;
6689
6690 switch (param->flags & IW_AUTH_INDEX) {
6691 case IW_AUTH_WPA_VERSION:
6692 case IW_AUTH_CIPHER_PAIRWISE:
6693 case IW_AUTH_CIPHER_GROUP:
6694 case IW_AUTH_KEY_MGMT:
6695 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6696 case IW_AUTH_PRIVACY_INVOKED:
6697 /*
6698 * airo does not use these parameters
6699 */
6700 break;
6701
6702 case IW_AUTH_DROP_UNENCRYPTED:
6703 if (param->value) {
6704 /* Only change auth type if unencrypted */
6705 if (currentAuthType == AUTH_OPEN)
6706 set_auth_type(local, AUTH_ENCRYPT);
6707 } else {
6708 set_auth_type(local, AUTH_OPEN);
6709 }
6710
6711 /* Commit the changes to flags if needed */
6712 if (local->config.authType != currentAuthType)
6713 set_bit (FLAG_COMMIT, &local->flags);
6714 break;
6715
6716 case IW_AUTH_80211_AUTH_ALG: {
6717 if (param->value & IW_AUTH_ALG_SHARED_KEY) {
6718 set_auth_type(local, AUTH_SHAREDKEY);
6719 } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
6720 /* We don't know here if WEP open system or
6721 * unencrypted mode was requested - so use the
6722 * last mode (of these two) used last time
6723 */
6724 set_auth_type(local, local->last_auth);
6725 } else
6726 return -EINVAL;
6727
6728 /* Commit the changes to flags if needed */
6729 if (local->config.authType != currentAuthType)
6730 set_bit (FLAG_COMMIT, &local->flags);
6731 break;
6732 }
6733
6734 case IW_AUTH_WPA_ENABLED:
6735 /* Silently accept disable of WPA */
6736 if (param->value > 0)
6737 return -EOPNOTSUPP;
6738 break;
6739
6740 default:
6741 return -EOPNOTSUPP;
6742 }
6743 return -EINPROGRESS;
6744 }
6745
6746
6747 /*------------------------------------------------------------------*/
6748 /*
6749 * Wireless Handler : get extended authentication parameters
6750 */
airo_get_auth(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6751 static int airo_get_auth(struct net_device *dev,
6752 struct iw_request_info *info,
6753 union iwreq_data *wrqu, char *extra)
6754 {
6755 struct airo_info *local = dev->ml_priv;
6756 struct iw_param *param = &wrqu->param;
6757 __le16 currentAuthType = local->config.authType;
6758
6759 switch (param->flags & IW_AUTH_INDEX) {
6760 case IW_AUTH_DROP_UNENCRYPTED:
6761 switch (currentAuthType) {
6762 case AUTH_SHAREDKEY:
6763 case AUTH_ENCRYPT:
6764 param->value = 1;
6765 break;
6766 default:
6767 param->value = 0;
6768 break;
6769 }
6770 break;
6771
6772 case IW_AUTH_80211_AUTH_ALG:
6773 switch (currentAuthType) {
6774 case AUTH_SHAREDKEY:
6775 param->value = IW_AUTH_ALG_SHARED_KEY;
6776 break;
6777 case AUTH_ENCRYPT:
6778 default:
6779 param->value = IW_AUTH_ALG_OPEN_SYSTEM;
6780 break;
6781 }
6782 break;
6783
6784 case IW_AUTH_WPA_ENABLED:
6785 param->value = 0;
6786 break;
6787
6788 default:
6789 return -EOPNOTSUPP;
6790 }
6791 return 0;
6792 }
6793
6794
6795 /*------------------------------------------------------------------*/
6796 /*
6797 * Wireless Handler : set Tx-Power
6798 */
airo_set_txpow(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6799 static int airo_set_txpow(struct net_device *dev,
6800 struct iw_request_info *info,
6801 struct iw_param *vwrq,
6802 char *extra)
6803 {
6804 struct airo_info *local = dev->ml_priv;
6805 CapabilityRid cap_rid; /* Card capability info */
6806 int i;
6807 int rc = -EINVAL;
6808 __le16 v = cpu_to_le16(vwrq->value);
6809
6810 readCapabilityRid(local, &cap_rid, 1);
6811
6812 if (vwrq->disabled) {
6813 set_bit (FLAG_RADIO_OFF, &local->flags);
6814 set_bit (FLAG_COMMIT, &local->flags);
6815 return -EINPROGRESS; /* Call commit handler */
6816 }
6817 if (vwrq->flags != IW_TXPOW_MWATT) {
6818 return -EINVAL;
6819 }
6820 clear_bit (FLAG_RADIO_OFF, &local->flags);
6821 for (i = 0; i < 8 && cap_rid.txPowerLevels[i]; i++)
6822 if (v == cap_rid.txPowerLevels[i]) {
6823 readConfigRid(local, 1);
6824 local->config.txPower = v;
6825 set_bit (FLAG_COMMIT, &local->flags);
6826 rc = -EINPROGRESS; /* Call commit handler */
6827 break;
6828 }
6829 return rc;
6830 }
6831
6832 /*------------------------------------------------------------------*/
6833 /*
6834 * Wireless Handler : get Tx-Power
6835 */
airo_get_txpow(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6836 static int airo_get_txpow(struct net_device *dev,
6837 struct iw_request_info *info,
6838 struct iw_param *vwrq,
6839 char *extra)
6840 {
6841 struct airo_info *local = dev->ml_priv;
6842
6843 readConfigRid(local, 1);
6844 vwrq->value = le16_to_cpu(local->config.txPower);
6845 vwrq->fixed = 1; /* No power control */
6846 vwrq->disabled = test_bit(FLAG_RADIO_OFF, &local->flags);
6847 vwrq->flags = IW_TXPOW_MWATT;
6848
6849 return 0;
6850 }
6851
6852 /*------------------------------------------------------------------*/
6853 /*
6854 * Wireless Handler : set Retry limits
6855 */
airo_set_retry(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6856 static int airo_set_retry(struct net_device *dev,
6857 struct iw_request_info *info,
6858 struct iw_param *vwrq,
6859 char *extra)
6860 {
6861 struct airo_info *local = dev->ml_priv;
6862 int rc = -EINVAL;
6863
6864 if (vwrq->disabled) {
6865 return -EINVAL;
6866 }
6867 readConfigRid(local, 1);
6868 if (vwrq->flags & IW_RETRY_LIMIT) {
6869 __le16 v = cpu_to_le16(vwrq->value);
6870 if (vwrq->flags & IW_RETRY_LONG)
6871 local->config.longRetryLimit = v;
6872 else if (vwrq->flags & IW_RETRY_SHORT)
6873 local->config.shortRetryLimit = v;
6874 else {
6875 /* No modifier : set both */
6876 local->config.longRetryLimit = v;
6877 local->config.shortRetryLimit = v;
6878 }
6879 set_bit (FLAG_COMMIT, &local->flags);
6880 rc = -EINPROGRESS; /* Call commit handler */
6881 }
6882 if (vwrq->flags & IW_RETRY_LIFETIME) {
6883 local->config.txLifetime = cpu_to_le16(vwrq->value / 1024);
6884 set_bit (FLAG_COMMIT, &local->flags);
6885 rc = -EINPROGRESS; /* Call commit handler */
6886 }
6887 return rc;
6888 }
6889
6890 /*------------------------------------------------------------------*/
6891 /*
6892 * Wireless Handler : get Retry limits
6893 */
airo_get_retry(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6894 static int airo_get_retry(struct net_device *dev,
6895 struct iw_request_info *info,
6896 struct iw_param *vwrq,
6897 char *extra)
6898 {
6899 struct airo_info *local = dev->ml_priv;
6900
6901 vwrq->disabled = 0; /* Can't be disabled */
6902
6903 readConfigRid(local, 1);
6904 /* Note : by default, display the min retry number */
6905 if ((vwrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
6906 vwrq->flags = IW_RETRY_LIFETIME;
6907 vwrq->value = le16_to_cpu(local->config.txLifetime) * 1024;
6908 } else if ((vwrq->flags & IW_RETRY_LONG)) {
6909 vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
6910 vwrq->value = le16_to_cpu(local->config.longRetryLimit);
6911 } else {
6912 vwrq->flags = IW_RETRY_LIMIT;
6913 vwrq->value = le16_to_cpu(local->config.shortRetryLimit);
6914 if (local->config.shortRetryLimit != local->config.longRetryLimit)
6915 vwrq->flags |= IW_RETRY_SHORT;
6916 }
6917
6918 return 0;
6919 }
6920
6921 /*------------------------------------------------------------------*/
6922 /*
6923 * Wireless Handler : get range info
6924 */
airo_get_range(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6925 static int airo_get_range(struct net_device *dev,
6926 struct iw_request_info *info,
6927 struct iw_point *dwrq,
6928 char *extra)
6929 {
6930 struct airo_info *local = dev->ml_priv;
6931 struct iw_range *range = (struct iw_range *) extra;
6932 CapabilityRid cap_rid; /* Card capability info */
6933 int i;
6934 int k;
6935
6936 readCapabilityRid(local, &cap_rid, 1);
6937
6938 dwrq->length = sizeof(struct iw_range);
6939 memset(range, 0, sizeof(*range));
6940 range->min_nwid = 0x0000;
6941 range->max_nwid = 0x0000;
6942 range->num_channels = 14;
6943 /* Should be based on cap_rid.country to give only
6944 * what the current card support */
6945 k = 0;
6946 for (i = 0; i < 14; i++) {
6947 range->freq[k].i = i + 1; /* List index */
6948 range->freq[k].m = 100000 *
6949 ieee80211_channel_to_frequency(i + 1, NL80211_BAND_2GHZ);
6950 range->freq[k++].e = 1; /* Values in MHz -> * 10^5 * 10 */
6951 }
6952 range->num_frequency = k;
6953
6954 range->sensitivity = 65535;
6955
6956 /* Hum... Should put the right values there */
6957 if (local->rssi)
6958 range->max_qual.qual = 100; /* % */
6959 else
6960 range->max_qual.qual = airo_get_max_quality(&cap_rid);
6961 range->max_qual.level = 0x100 - 120; /* -120 dBm */
6962 range->max_qual.noise = 0x100 - 120; /* -120 dBm */
6963
6964 /* Experimental measurements - boundary 11/5.5 Mb/s */
6965 /* Note : with or without the (local->rssi), results
6966 * are somewhat different. - Jean II */
6967 if (local->rssi) {
6968 range->avg_qual.qual = 50; /* % */
6969 range->avg_qual.level = 0x100 - 70; /* -70 dBm */
6970 } else {
6971 range->avg_qual.qual = airo_get_avg_quality(&cap_rid);
6972 range->avg_qual.level = 0x100 - 80; /* -80 dBm */
6973 }
6974 range->avg_qual.noise = 0x100 - 85; /* -85 dBm */
6975
6976 for (i = 0 ; i < 8 ; i++) {
6977 range->bitrate[i] = cap_rid.supportedRates[i] * 500000;
6978 if (range->bitrate[i] == 0)
6979 break;
6980 }
6981 range->num_bitrates = i;
6982
6983 /* Set an indication of the max TCP throughput
6984 * in bit/s that we can expect using this interface.
6985 * May be use for QoS stuff... Jean II */
6986 if (i > 2)
6987 range->throughput = 5000 * 1000;
6988 else
6989 range->throughput = 1500 * 1000;
6990
6991 range->min_rts = 0;
6992 range->max_rts = AIRO_DEF_MTU;
6993 range->min_frag = 256;
6994 range->max_frag = AIRO_DEF_MTU;
6995
6996 if (cap_rid.softCap & cpu_to_le16(2)) {
6997 // WEP: RC4 40 bits
6998 range->encoding_size[0] = 5;
6999 // RC4 ~128 bits
7000 if (cap_rid.softCap & cpu_to_le16(0x100)) {
7001 range->encoding_size[1] = 13;
7002 range->num_encoding_sizes = 2;
7003 } else
7004 range->num_encoding_sizes = 1;
7005 range->max_encoding_tokens =
7006 cap_rid.softCap & cpu_to_le16(0x80) ? 4 : 1;
7007 } else {
7008 range->num_encoding_sizes = 0;
7009 range->max_encoding_tokens = 0;
7010 }
7011 range->min_pmp = 0;
7012 range->max_pmp = 5000000; /* 5 secs */
7013 range->min_pmt = 0;
7014 range->max_pmt = 65535 * 1024; /* ??? */
7015 range->pmp_flags = IW_POWER_PERIOD;
7016 range->pmt_flags = IW_POWER_TIMEOUT;
7017 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R;
7018
7019 /* Transmit Power - values are in mW */
7020 for (i = 0 ; i < 8 ; i++) {
7021 range->txpower[i] = le16_to_cpu(cap_rid.txPowerLevels[i]);
7022 if (range->txpower[i] == 0)
7023 break;
7024 }
7025 range->num_txpower = i;
7026 range->txpower_capa = IW_TXPOW_MWATT;
7027 range->we_version_source = 19;
7028 range->we_version_compiled = WIRELESS_EXT;
7029 range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
7030 range->retry_flags = IW_RETRY_LIMIT;
7031 range->r_time_flags = IW_RETRY_LIFETIME;
7032 range->min_retry = 1;
7033 range->max_retry = 65535;
7034 range->min_r_time = 1024;
7035 range->max_r_time = 65535 * 1024;
7036
7037 /* Event capability (kernel + driver) */
7038 range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
7039 IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) |
7040 IW_EVENT_CAPA_MASK(SIOCGIWAP) |
7041 IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
7042 range->event_capa[1] = IW_EVENT_CAPA_K_1;
7043 range->event_capa[4] = IW_EVENT_CAPA_MASK(IWEVTXDROP);
7044 return 0;
7045 }
7046
7047 /*------------------------------------------------------------------*/
7048 /*
7049 * Wireless Handler : set Power Management
7050 */
airo_set_power(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7051 static int airo_set_power(struct net_device *dev,
7052 struct iw_request_info *info,
7053 struct iw_param *vwrq,
7054 char *extra)
7055 {
7056 struct airo_info *local = dev->ml_priv;
7057
7058 readConfigRid(local, 1);
7059 if (vwrq->disabled) {
7060 if (sniffing_mode(local))
7061 return -EINVAL;
7062 local->config.powerSaveMode = POWERSAVE_CAM;
7063 local->config.rmode &= ~RXMODE_MASK;
7064 local->config.rmode |= RXMODE_BC_MC_ADDR;
7065 set_bit (FLAG_COMMIT, &local->flags);
7066 return -EINPROGRESS; /* Call commit handler */
7067 }
7068 if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
7069 local->config.fastListenDelay = cpu_to_le16((vwrq->value + 500) / 1024);
7070 local->config.powerSaveMode = POWERSAVE_PSPCAM;
7071 set_bit (FLAG_COMMIT, &local->flags);
7072 } else if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_PERIOD) {
7073 local->config.fastListenInterval =
7074 local->config.listenInterval =
7075 cpu_to_le16((vwrq->value + 500) / 1024);
7076 local->config.powerSaveMode = POWERSAVE_PSPCAM;
7077 set_bit (FLAG_COMMIT, &local->flags);
7078 }
7079 switch (vwrq->flags & IW_POWER_MODE) {
7080 case IW_POWER_UNICAST_R:
7081 if (sniffing_mode(local))
7082 return -EINVAL;
7083 local->config.rmode &= ~RXMODE_MASK;
7084 local->config.rmode |= RXMODE_ADDR;
7085 set_bit (FLAG_COMMIT, &local->flags);
7086 break;
7087 case IW_POWER_ALL_R:
7088 if (sniffing_mode(local))
7089 return -EINVAL;
7090 local->config.rmode &= ~RXMODE_MASK;
7091 local->config.rmode |= RXMODE_BC_MC_ADDR;
7092 set_bit (FLAG_COMMIT, &local->flags);
7093 break;
7094 case IW_POWER_ON:
7095 /* This is broken, fixme ;-) */
7096 break;
7097 default:
7098 return -EINVAL;
7099 }
7100 // Note : we may want to factor local->need_commit here
7101 // Note2 : may also want to factor RXMODE_RFMON test
7102 return -EINPROGRESS; /* Call commit handler */
7103 }
7104
7105 /*------------------------------------------------------------------*/
7106 /*
7107 * Wireless Handler : get Power Management
7108 */
airo_get_power(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7109 static int airo_get_power(struct net_device *dev,
7110 struct iw_request_info *info,
7111 struct iw_param *vwrq,
7112 char *extra)
7113 {
7114 struct airo_info *local = dev->ml_priv;
7115 __le16 mode;
7116
7117 readConfigRid(local, 1);
7118 mode = local->config.powerSaveMode;
7119 if ((vwrq->disabled = (mode == POWERSAVE_CAM)))
7120 return 0;
7121 if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
7122 vwrq->value = le16_to_cpu(local->config.fastListenDelay) * 1024;
7123 vwrq->flags = IW_POWER_TIMEOUT;
7124 } else {
7125 vwrq->value = le16_to_cpu(local->config.fastListenInterval) * 1024;
7126 vwrq->flags = IW_POWER_PERIOD;
7127 }
7128 if ((local->config.rmode & RXMODE_MASK) == RXMODE_ADDR)
7129 vwrq->flags |= IW_POWER_UNICAST_R;
7130 else
7131 vwrq->flags |= IW_POWER_ALL_R;
7132
7133 return 0;
7134 }
7135
7136 /*------------------------------------------------------------------*/
7137 /*
7138 * Wireless Handler : set Sensitivity
7139 */
airo_set_sens(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7140 static int airo_set_sens(struct net_device *dev,
7141 struct iw_request_info *info,
7142 struct iw_param *vwrq,
7143 char *extra)
7144 {
7145 struct airo_info *local = dev->ml_priv;
7146
7147 readConfigRid(local, 1);
7148 local->config.rssiThreshold =
7149 cpu_to_le16(vwrq->disabled ? RSSI_DEFAULT : vwrq->value);
7150 set_bit (FLAG_COMMIT, &local->flags);
7151
7152 return -EINPROGRESS; /* Call commit handler */
7153 }
7154
7155 /*------------------------------------------------------------------*/
7156 /*
7157 * Wireless Handler : get Sensitivity
7158 */
airo_get_sens(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7159 static int airo_get_sens(struct net_device *dev,
7160 struct iw_request_info *info,
7161 struct iw_param *vwrq,
7162 char *extra)
7163 {
7164 struct airo_info *local = dev->ml_priv;
7165
7166 readConfigRid(local, 1);
7167 vwrq->value = le16_to_cpu(local->config.rssiThreshold);
7168 vwrq->disabled = (vwrq->value == 0);
7169 vwrq->fixed = 1;
7170
7171 return 0;
7172 }
7173
7174 /*------------------------------------------------------------------*/
7175 /*
7176 * Wireless Handler : get AP List
7177 * Note : this is deprecated in favor of IWSCAN
7178 */
airo_get_aplist(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)7179 static int airo_get_aplist(struct net_device *dev,
7180 struct iw_request_info *info,
7181 struct iw_point *dwrq,
7182 char *extra)
7183 {
7184 struct airo_info *local = dev->ml_priv;
7185 struct sockaddr *address = (struct sockaddr *) extra;
7186 struct iw_quality *qual;
7187 BSSListRid BSSList;
7188 int i;
7189 int loseSync = capable(CAP_NET_ADMIN) ? 1: -1;
7190
7191 qual = kmalloc_array(IW_MAX_AP, sizeof(*qual), GFP_KERNEL);
7192 if (!qual)
7193 return -ENOMEM;
7194
7195 for (i = 0; i < IW_MAX_AP; i++) {
7196 u16 dBm;
7197 if (readBSSListRid(local, loseSync, &BSSList))
7198 break;
7199 loseSync = 0;
7200 memcpy(address[i].sa_data, BSSList.bssid, ETH_ALEN);
7201 address[i].sa_family = ARPHRD_ETHER;
7202 dBm = le16_to_cpu(BSSList.dBm);
7203 if (local->rssi) {
7204 qual[i].level = 0x100 - dBm;
7205 qual[i].qual = airo_dbm_to_pct(local->rssi, dBm);
7206 qual[i].updated = IW_QUAL_QUAL_UPDATED
7207 | IW_QUAL_LEVEL_UPDATED
7208 | IW_QUAL_DBM;
7209 } else {
7210 qual[i].level = (dBm + 321) / 2;
7211 qual[i].qual = 0;
7212 qual[i].updated = IW_QUAL_QUAL_INVALID
7213 | IW_QUAL_LEVEL_UPDATED
7214 | IW_QUAL_DBM;
7215 }
7216 qual[i].noise = local->wstats.qual.noise;
7217 if (BSSList.index == cpu_to_le16(0xffff))
7218 break;
7219 }
7220 if (!i) {
7221 StatusRid status_rid; /* Card status info */
7222 readStatusRid(local, &status_rid, 1);
7223 for (i = 0;
7224 i < min(IW_MAX_AP, 4) &&
7225 (status_rid.bssid[i][0]
7226 & status_rid.bssid[i][1]
7227 & status_rid.bssid[i][2]
7228 & status_rid.bssid[i][3]
7229 & status_rid.bssid[i][4]
7230 & status_rid.bssid[i][5])!=0xff &&
7231 (status_rid.bssid[i][0]
7232 | status_rid.bssid[i][1]
7233 | status_rid.bssid[i][2]
7234 | status_rid.bssid[i][3]
7235 | status_rid.bssid[i][4]
7236 | status_rid.bssid[i][5]);
7237 i++) {
7238 memcpy(address[i].sa_data,
7239 status_rid.bssid[i], ETH_ALEN);
7240 address[i].sa_family = ARPHRD_ETHER;
7241 }
7242 } else {
7243 dwrq->flags = 1; /* Should be define'd */
7244 memcpy(extra + sizeof(struct sockaddr) * i, qual,
7245 sizeof(struct iw_quality) * i);
7246 }
7247 dwrq->length = i;
7248
7249 kfree(qual);
7250 return 0;
7251 }
7252
7253 /*------------------------------------------------------------------*/
7254 /*
7255 * Wireless Handler : Initiate Scan
7256 */
airo_set_scan(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)7257 static int airo_set_scan(struct net_device *dev,
7258 struct iw_request_info *info,
7259 struct iw_point *dwrq,
7260 char *extra)
7261 {
7262 struct airo_info *ai = dev->ml_priv;
7263 Cmd cmd;
7264 Resp rsp;
7265 int wake = 0;
7266 APListRid APList_rid_empty;
7267
7268 /* Note : you may have realised that, as this is a SET operation,
7269 * this is privileged and therefore a normal user can't
7270 * perform scanning.
7271 * This is not an error, while the device perform scanning,
7272 * traffic doesn't flow, so it's a perfect DoS...
7273 * Jean II */
7274 if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN;
7275
7276 if (down_interruptible(&ai->sem))
7277 return -ERESTARTSYS;
7278
7279 /* If there's already a scan in progress, don't
7280 * trigger another one. */
7281 if (ai->scan_timeout > 0)
7282 goto out;
7283
7284 /* Clear APList as it affects scan results */
7285 memset(&APList_rid_empty, 0, sizeof(APList_rid_empty));
7286 APList_rid_empty.len = cpu_to_le16(sizeof(APList_rid_empty));
7287 disable_MAC(ai, 2);
7288 writeAPListRid(ai, &APList_rid_empty, 0);
7289 enable_MAC(ai, 0);
7290
7291 /* Initiate a scan command */
7292 ai->scan_timeout = RUN_AT(3*HZ);
7293 memset(&cmd, 0, sizeof(cmd));
7294 cmd.cmd = CMD_LISTBSS;
7295 issuecommand(ai, &cmd, &rsp, true);
7296 wake = 1;
7297
7298 out:
7299 up(&ai->sem);
7300 if (wake)
7301 wake_up_interruptible(&ai->thr_wait);
7302 return 0;
7303 }
7304
7305 /*------------------------------------------------------------------*/
7306 /*
7307 * Translate scan data returned from the card to a card independent
7308 * format that the Wireless Tools will understand - Jean II
7309 */
airo_translate_scan(struct net_device * dev,struct iw_request_info * info,char * current_ev,char * end_buf,BSSListRid * bss)7310 static inline char *airo_translate_scan(struct net_device *dev,
7311 struct iw_request_info *info,
7312 char *current_ev,
7313 char *end_buf,
7314 BSSListRid *bss)
7315 {
7316 struct airo_info *ai = dev->ml_priv;
7317 struct iw_event iwe; /* Temporary buffer */
7318 __le16 capabilities;
7319 char * current_val; /* For rates */
7320 int i;
7321 char * buf;
7322 u16 dBm;
7323
7324 /* First entry *MUST* be the AP MAC address */
7325 iwe.cmd = SIOCGIWAP;
7326 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
7327 memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN);
7328 current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7329 &iwe, IW_EV_ADDR_LEN);
7330
7331 /* Other entries will be displayed in the order we give them */
7332
7333 /* Add the ESSID */
7334 iwe.u.data.length = bss->ssidLen;
7335 if (iwe.u.data.length > 32)
7336 iwe.u.data.length = 32;
7337 iwe.cmd = SIOCGIWESSID;
7338 iwe.u.data.flags = 1;
7339 current_ev = iwe_stream_add_point(info, current_ev, end_buf,
7340 &iwe, bss->ssid);
7341
7342 /* Add mode */
7343 iwe.cmd = SIOCGIWMODE;
7344 capabilities = bss->cap;
7345 if (capabilities & (CAP_ESS | CAP_IBSS)) {
7346 if (capabilities & CAP_ESS)
7347 iwe.u.mode = IW_MODE_MASTER;
7348 else
7349 iwe.u.mode = IW_MODE_ADHOC;
7350 current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7351 &iwe, IW_EV_UINT_LEN);
7352 }
7353
7354 /* Add frequency */
7355 iwe.cmd = SIOCGIWFREQ;
7356 iwe.u.freq.m = le16_to_cpu(bss->dsChannel);
7357 iwe.u.freq.m = 100000 *
7358 ieee80211_channel_to_frequency(iwe.u.freq.m, NL80211_BAND_2GHZ);
7359 iwe.u.freq.e = 1;
7360 current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7361 &iwe, IW_EV_FREQ_LEN);
7362
7363 dBm = le16_to_cpu(bss->dBm);
7364
7365 /* Add quality statistics */
7366 iwe.cmd = IWEVQUAL;
7367 if (ai->rssi) {
7368 iwe.u.qual.level = 0x100 - dBm;
7369 iwe.u.qual.qual = airo_dbm_to_pct(ai->rssi, dBm);
7370 iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED
7371 | IW_QUAL_LEVEL_UPDATED
7372 | IW_QUAL_DBM;
7373 } else {
7374 iwe.u.qual.level = (dBm + 321) / 2;
7375 iwe.u.qual.qual = 0;
7376 iwe.u.qual.updated = IW_QUAL_QUAL_INVALID
7377 | IW_QUAL_LEVEL_UPDATED
7378 | IW_QUAL_DBM;
7379 }
7380 iwe.u.qual.noise = ai->wstats.qual.noise;
7381 current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7382 &iwe, IW_EV_QUAL_LEN);
7383
7384 /* Add encryption capability */
7385 iwe.cmd = SIOCGIWENCODE;
7386 if (capabilities & CAP_PRIVACY)
7387 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
7388 else
7389 iwe.u.data.flags = IW_ENCODE_DISABLED;
7390 iwe.u.data.length = 0;
7391 current_ev = iwe_stream_add_point(info, current_ev, end_buf,
7392 &iwe, bss->ssid);
7393
7394 /* Rate : stuffing multiple values in a single event require a bit
7395 * more of magic - Jean II */
7396 current_val = current_ev + iwe_stream_lcp_len(info);
7397
7398 iwe.cmd = SIOCGIWRATE;
7399 /* Those two flags are ignored... */
7400 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
7401 /* Max 8 values */
7402 for (i = 0 ; i < 8 ; i++) {
7403 /* NULL terminated */
7404 if (bss->rates[i] == 0)
7405 break;
7406 /* Bit rate given in 500 kb/s units (+ 0x80) */
7407 iwe.u.bitrate.value = ((bss->rates[i] & 0x7f) * 500000);
7408 /* Add new value to event */
7409 current_val = iwe_stream_add_value(info, current_ev,
7410 current_val, end_buf,
7411 &iwe, IW_EV_PARAM_LEN);
7412 }
7413 /* Check if we added any event */
7414 if ((current_val - current_ev) > iwe_stream_lcp_len(info))
7415 current_ev = current_val;
7416
7417 /* Beacon interval */
7418 buf = kmalloc(30, GFP_KERNEL);
7419 if (buf) {
7420 iwe.cmd = IWEVCUSTOM;
7421 sprintf(buf, "bcn_int=%d", bss->beaconInterval);
7422 iwe.u.data.length = strlen(buf);
7423 current_ev = iwe_stream_add_point(info, current_ev, end_buf,
7424 &iwe, buf);
7425 kfree(buf);
7426 }
7427
7428 /* Put WPA/RSN Information Elements into the event stream */
7429 if (test_bit(FLAG_WPA_CAPABLE, &ai->flags)) {
7430 unsigned int num_null_ies = 0;
7431 u16 length = sizeof (bss->extra.iep);
7432 u8 *ie = (void *)&bss->extra.iep;
7433
7434 while ((length >= 2) && (num_null_ies < 2)) {
7435 if (2 + ie[1] > length) {
7436 /* Invalid element, don't continue parsing IE */
7437 break;
7438 }
7439
7440 switch (ie[0]) {
7441 case WLAN_EID_SSID:
7442 /* Two zero-length SSID elements
7443 * mean we're done parsing elements */
7444 if (!ie[1])
7445 num_null_ies++;
7446 break;
7447
7448 case WLAN_EID_VENDOR_SPECIFIC:
7449 if (ie[1] >= 4 &&
7450 ie[2] == 0x00 &&
7451 ie[3] == 0x50 &&
7452 ie[4] == 0xf2 &&
7453 ie[5] == 0x01) {
7454 iwe.cmd = IWEVGENIE;
7455 /* 64 is an arbitrary cut-off */
7456 iwe.u.data.length = min(ie[1] + 2,
7457 64);
7458 current_ev = iwe_stream_add_point(
7459 info, current_ev,
7460 end_buf, &iwe, ie);
7461 }
7462 break;
7463
7464 case WLAN_EID_RSN:
7465 iwe.cmd = IWEVGENIE;
7466 /* 64 is an arbitrary cut-off */
7467 iwe.u.data.length = min(ie[1] + 2, 64);
7468 current_ev = iwe_stream_add_point(
7469 info, current_ev, end_buf,
7470 &iwe, ie);
7471 break;
7472
7473 default:
7474 break;
7475 }
7476
7477 length -= 2 + ie[1];
7478 ie += 2 + ie[1];
7479 }
7480 }
7481 return current_ev;
7482 }
7483
7484 /*------------------------------------------------------------------*/
7485 /*
7486 * Wireless Handler : Read Scan Results
7487 */
airo_get_scan(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)7488 static int airo_get_scan(struct net_device *dev,
7489 struct iw_request_info *info,
7490 struct iw_point *dwrq,
7491 char *extra)
7492 {
7493 struct airo_info *ai = dev->ml_priv;
7494 BSSListElement *net;
7495 int err = 0;
7496 char *current_ev = extra;
7497
7498 /* If a scan is in-progress, return -EAGAIN */
7499 if (ai->scan_timeout > 0)
7500 return -EAGAIN;
7501
7502 if (down_interruptible(&ai->sem))
7503 return -EAGAIN;
7504
7505 list_for_each_entry (net, &ai->network_list, list) {
7506 /* Translate to WE format this entry */
7507 current_ev = airo_translate_scan(dev, info, current_ev,
7508 extra + dwrq->length,
7509 &net->bss);
7510
7511 /* Check if there is space for one more entry */
7512 if ((extra + dwrq->length - current_ev) <= IW_EV_ADDR_LEN) {
7513 /* Ask user space to try again with a bigger buffer */
7514 err = -E2BIG;
7515 goto out;
7516 }
7517 }
7518
7519 /* Length of data */
7520 dwrq->length = (current_ev - extra);
7521 dwrq->flags = 0; /* todo */
7522
7523 out:
7524 up(&ai->sem);
7525 return err;
7526 }
7527
7528 /*------------------------------------------------------------------*/
7529 /*
7530 * Commit handler : called after a bunch of SET operations
7531 */
airo_config_commit(struct net_device * dev,struct iw_request_info * info,void * zwrq,char * extra)7532 static int airo_config_commit(struct net_device *dev,
7533 struct iw_request_info *info, /* NULL */
7534 void *zwrq, /* NULL */
7535 char *extra) /* NULL */
7536 {
7537 struct airo_info *local = dev->ml_priv;
7538
7539 if (!test_bit (FLAG_COMMIT, &local->flags))
7540 return 0;
7541
7542 /* Some of the "SET" function may have modified some of the
7543 * parameters. It's now time to commit them in the card */
7544 disable_MAC(local, 1);
7545 if (test_bit (FLAG_RESET, &local->flags)) {
7546 SsidRid SSID_rid;
7547
7548 readSsidRid(local, &SSID_rid);
7549 if (test_bit(FLAG_MPI,&local->flags))
7550 setup_card(local, dev->dev_addr, 1);
7551 else
7552 reset_airo_card(dev);
7553 disable_MAC(local, 1);
7554 writeSsidRid(local, &SSID_rid, 1);
7555 writeAPListRid(local, &local->APList, 1);
7556 }
7557 if (down_interruptible(&local->sem))
7558 return -ERESTARTSYS;
7559 writeConfigRid(local, 0);
7560 enable_MAC(local, 0);
7561 if (test_bit (FLAG_RESET, &local->flags))
7562 airo_set_promisc(local, true);
7563 else
7564 up(&local->sem);
7565
7566 return 0;
7567 }
7568
7569 /*------------------------------------------------------------------*/
7570 /*
7571 * Structures to export the Wireless Handlers
7572 */
7573
7574 static const struct iw_priv_args airo_private_args[] = {
7575 /*{ cmd, set_args, get_args, name } */
7576 { AIROIOCTL, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof (aironet_ioctl),
7577 IW_PRIV_TYPE_BYTE | 2047, "airoioctl" },
7578 { AIROIDIFC, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof (aironet_ioctl),
7579 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "airoidifc" },
7580 };
7581
7582 static const iw_handler airo_handler[] =
7583 {
7584 (iw_handler) airo_config_commit, /* SIOCSIWCOMMIT */
7585 (iw_handler) airo_get_name, /* SIOCGIWNAME */
7586 (iw_handler) NULL, /* SIOCSIWNWID */
7587 (iw_handler) NULL, /* SIOCGIWNWID */
7588 (iw_handler) airo_set_freq, /* SIOCSIWFREQ */
7589 (iw_handler) airo_get_freq, /* SIOCGIWFREQ */
7590 (iw_handler) airo_set_mode, /* SIOCSIWMODE */
7591 (iw_handler) airo_get_mode, /* SIOCGIWMODE */
7592 (iw_handler) airo_set_sens, /* SIOCSIWSENS */
7593 (iw_handler) airo_get_sens, /* SIOCGIWSENS */
7594 (iw_handler) NULL, /* SIOCSIWRANGE */
7595 (iw_handler) airo_get_range, /* SIOCGIWRANGE */
7596 (iw_handler) NULL, /* SIOCSIWPRIV */
7597 (iw_handler) NULL, /* SIOCGIWPRIV */
7598 (iw_handler) NULL, /* SIOCSIWSTATS */
7599 (iw_handler) NULL, /* SIOCGIWSTATS */
7600 iw_handler_set_spy, /* SIOCSIWSPY */
7601 iw_handler_get_spy, /* SIOCGIWSPY */
7602 iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
7603 iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
7604 (iw_handler) airo_set_wap, /* SIOCSIWAP */
7605 (iw_handler) airo_get_wap, /* SIOCGIWAP */
7606 (iw_handler) NULL, /* -- hole -- */
7607 (iw_handler) airo_get_aplist, /* SIOCGIWAPLIST */
7608 (iw_handler) airo_set_scan, /* SIOCSIWSCAN */
7609 (iw_handler) airo_get_scan, /* SIOCGIWSCAN */
7610 (iw_handler) airo_set_essid, /* SIOCSIWESSID */
7611 (iw_handler) airo_get_essid, /* SIOCGIWESSID */
7612 (iw_handler) airo_set_nick, /* SIOCSIWNICKN */
7613 (iw_handler) airo_get_nick, /* SIOCGIWNICKN */
7614 (iw_handler) NULL, /* -- hole -- */
7615 (iw_handler) NULL, /* -- hole -- */
7616 (iw_handler) airo_set_rate, /* SIOCSIWRATE */
7617 (iw_handler) airo_get_rate, /* SIOCGIWRATE */
7618 (iw_handler) airo_set_rts, /* SIOCSIWRTS */
7619 (iw_handler) airo_get_rts, /* SIOCGIWRTS */
7620 (iw_handler) airo_set_frag, /* SIOCSIWFRAG */
7621 (iw_handler) airo_get_frag, /* SIOCGIWFRAG */
7622 (iw_handler) airo_set_txpow, /* SIOCSIWTXPOW */
7623 (iw_handler) airo_get_txpow, /* SIOCGIWTXPOW */
7624 (iw_handler) airo_set_retry, /* SIOCSIWRETRY */
7625 (iw_handler) airo_get_retry, /* SIOCGIWRETRY */
7626 (iw_handler) airo_set_encode, /* SIOCSIWENCODE */
7627 (iw_handler) airo_get_encode, /* SIOCGIWENCODE */
7628 (iw_handler) airo_set_power, /* SIOCSIWPOWER */
7629 (iw_handler) airo_get_power, /* SIOCGIWPOWER */
7630 (iw_handler) NULL, /* -- hole -- */
7631 (iw_handler) NULL, /* -- hole -- */
7632 (iw_handler) NULL, /* SIOCSIWGENIE */
7633 (iw_handler) NULL, /* SIOCGIWGENIE */
7634 (iw_handler) airo_set_auth, /* SIOCSIWAUTH */
7635 (iw_handler) airo_get_auth, /* SIOCGIWAUTH */
7636 (iw_handler) airo_set_encodeext, /* SIOCSIWENCODEEXT */
7637 (iw_handler) airo_get_encodeext, /* SIOCGIWENCODEEXT */
7638 (iw_handler) NULL, /* SIOCSIWPMKSA */
7639 };
7640
7641 /* Note : don't describe AIROIDIFC and AIROOLDIDIFC in here.
7642 * We want to force the use of the ioctl code, because those can't be
7643 * won't work the iw_handler code (because they simultaneously read
7644 * and write data and iw_handler can't do that).
7645 * Note that it's perfectly legal to read/write on a single ioctl command,
7646 * you just can't use iwpriv and need to force it via the ioctl handler.
7647 * Jean II */
7648 static const iw_handler airo_private_handler[] =
7649 {
7650 NULL, /* SIOCIWFIRSTPRIV */
7651 };
7652
7653 static const struct iw_handler_def airo_handler_def =
7654 {
7655 .num_standard = ARRAY_SIZE(airo_handler),
7656 .num_private = ARRAY_SIZE(airo_private_handler),
7657 .num_private_args = ARRAY_SIZE(airo_private_args),
7658 .standard = airo_handler,
7659 .private = airo_private_handler,
7660 .private_args = airo_private_args,
7661 .get_wireless_stats = airo_get_wireless_stats,
7662 };
7663
7664 /*
7665 * This defines the configuration part of the Wireless Extensions
7666 * Note : irq and spinlock protection will occur in the subroutines
7667 *
7668 * TODO :
7669 * o Check input value more carefully and fill correct values in range
7670 * o Test and shakeout the bugs (if any)
7671 *
7672 * Jean II
7673 *
7674 * Javier Achirica did a great job of merging code from the unnamed CISCO
7675 * developer that added support for flashing the card.
7676 */
airo_siocdevprivate(struct net_device * dev,struct ifreq * rq,void __user * data,int cmd)7677 static int airo_siocdevprivate(struct net_device *dev, struct ifreq *rq,
7678 void __user *data, int cmd)
7679 {
7680 int rc = 0;
7681 struct airo_info *ai = dev->ml_priv;
7682
7683 if (ai->power.event)
7684 return 0;
7685
7686 switch (cmd) {
7687 #ifdef CISCO_EXT
7688 case AIROIDIFC:
7689 #ifdef AIROOLDIDIFC
7690 case AIROOLDIDIFC:
7691 #endif
7692 {
7693 int val = AIROMAGIC;
7694 aironet_ioctl com;
7695 if (copy_from_user(&com, data, sizeof(com)))
7696 rc = -EFAULT;
7697 else if (copy_to_user(com.data, (char *)&val, sizeof(val)))
7698 rc = -EFAULT;
7699 }
7700 break;
7701
7702 case AIROIOCTL:
7703 #ifdef AIROOLDIOCTL
7704 case AIROOLDIOCTL:
7705 #endif
7706 /* Get the command struct and hand it off for evaluation by
7707 * the proper subfunction
7708 */
7709 {
7710 aironet_ioctl com;
7711 if (copy_from_user(&com, data, sizeof(com))) {
7712 rc = -EFAULT;
7713 break;
7714 }
7715
7716 /* Separate R/W functions bracket legality here
7717 */
7718 if (com.command == AIRORSWVERSION) {
7719 if (copy_to_user(com.data, swversion, sizeof(swversion)))
7720 rc = -EFAULT;
7721 else
7722 rc = 0;
7723 }
7724 else if (com.command <= AIRORRID)
7725 rc = readrids(dev,&com);
7726 else if (com.command >= AIROPCAP && com.command <= (AIROPLEAPUSR+2))
7727 rc = writerids(dev,&com);
7728 else if (com.command >= AIROFLSHRST && com.command <= AIRORESTART)
7729 rc = flashcard(dev,&com);
7730 else
7731 rc = -EINVAL; /* Bad command in ioctl */
7732 }
7733 break;
7734 #endif /* CISCO_EXT */
7735
7736 // All other calls are currently unsupported
7737 default:
7738 rc = -EOPNOTSUPP;
7739 }
7740 return rc;
7741 }
7742
7743 /*
7744 * Get the Wireless stats out of the driver
7745 * Note : irq and spinlock protection will occur in the subroutines
7746 *
7747 * TODO :
7748 * o Check if work in Ad-Hoc mode (otherwise, use SPY, as in wvlan_cs)
7749 *
7750 * Jean
7751 */
airo_read_wireless_stats(struct airo_info * local)7752 static void airo_read_wireless_stats(struct airo_info *local)
7753 {
7754 StatusRid status_rid;
7755 StatsRid stats_rid;
7756 CapabilityRid cap_rid;
7757 __le32 *vals = stats_rid.vals;
7758
7759 /* Get stats out of the card */
7760 if (local->power.event)
7761 return;
7762
7763 readCapabilityRid(local, &cap_rid, 0);
7764 readStatusRid(local, &status_rid, 0);
7765 readStatsRid(local, &stats_rid, RID_STATS, 0);
7766
7767 /* The status */
7768 local->wstats.status = le16_to_cpu(status_rid.mode);
7769
7770 /* Signal quality and co */
7771 if (local->rssi) {
7772 local->wstats.qual.level =
7773 airo_rssi_to_dbm(local->rssi,
7774 le16_to_cpu(status_rid.sigQuality));
7775 /* normalizedSignalStrength appears to be a percentage */
7776 local->wstats.qual.qual =
7777 le16_to_cpu(status_rid.normalizedSignalStrength);
7778 } else {
7779 local->wstats.qual.level =
7780 (le16_to_cpu(status_rid.normalizedSignalStrength) + 321) / 2;
7781 local->wstats.qual.qual = airo_get_quality(&status_rid, &cap_rid);
7782 }
7783 if (le16_to_cpu(status_rid.len) >= 124) {
7784 local->wstats.qual.noise = 0x100 - status_rid.noisedBm;
7785 local->wstats.qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
7786 } else {
7787 local->wstats.qual.noise = 0;
7788 local->wstats.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | IW_QUAL_NOISE_INVALID | IW_QUAL_DBM;
7789 }
7790
7791 /* Packets discarded in the wireless adapter due to wireless
7792 * specific problems */
7793 local->wstats.discard.nwid = le32_to_cpu(vals[56]) +
7794 le32_to_cpu(vals[57]) +
7795 le32_to_cpu(vals[58]); /* SSID Mismatch */
7796 local->wstats.discard.code = le32_to_cpu(vals[6]);/* RxWepErr */
7797 local->wstats.discard.fragment = le32_to_cpu(vals[30]);
7798 local->wstats.discard.retries = le32_to_cpu(vals[10]);
7799 local->wstats.discard.misc = le32_to_cpu(vals[1]) +
7800 le32_to_cpu(vals[32]);
7801 local->wstats.miss.beacon = le32_to_cpu(vals[34]);
7802 }
7803
airo_get_wireless_stats(struct net_device * dev)7804 static struct iw_statistics *airo_get_wireless_stats(struct net_device *dev)
7805 {
7806 struct airo_info *local = dev->ml_priv;
7807
7808 if (!down_interruptible(&local->sem)) {
7809 airo_read_wireless_stats(local);
7810 up(&local->sem);
7811 }
7812 return &local->wstats;
7813 }
7814
7815 #ifdef CISCO_EXT
7816 /*
7817 * This just translates from driver IOCTL codes to the command codes to
7818 * feed to the radio's host interface. Things can be added/deleted
7819 * as needed. This represents the READ side of control I/O to
7820 * the card
7821 */
readrids(struct net_device * dev,aironet_ioctl * comp)7822 static int readrids(struct net_device *dev, aironet_ioctl *comp)
7823 {
7824 unsigned short ridcode;
7825 unsigned char *iobuf;
7826 int len;
7827 struct airo_info *ai = dev->ml_priv;
7828
7829 if (test_bit(FLAG_FLASHING, &ai->flags))
7830 return -EIO;
7831
7832 switch(comp->command)
7833 {
7834 case AIROGCAP: ridcode = RID_CAPABILITIES; break;
7835 case AIROGCFG: ridcode = RID_CONFIG;
7836 if (test_bit(FLAG_COMMIT, &ai->flags)) {
7837 disable_MAC (ai, 1);
7838 writeConfigRid (ai, 1);
7839 enable_MAC(ai, 1);
7840 }
7841 break;
7842 case AIROGSLIST: ridcode = RID_SSID; break;
7843 case AIROGVLIST: ridcode = RID_APLIST; break;
7844 case AIROGDRVNAM: ridcode = RID_DRVNAME; break;
7845 case AIROGEHTENC: ridcode = RID_ETHERENCAP; break;
7846 case AIROGWEPKTMP: ridcode = RID_WEP_TEMP; break;
7847 case AIROGWEPKNV: ridcode = RID_WEP_PERM; break;
7848 case AIROGSTAT: ridcode = RID_STATUS; break;
7849 case AIROGSTATSD32: ridcode = RID_STATSDELTA; break;
7850 case AIROGSTATSC32: ridcode = RID_STATS; break;
7851 case AIROGMICSTATS:
7852 if (copy_to_user(comp->data, &ai->micstats,
7853 min((int)comp->len, (int)sizeof(ai->micstats))))
7854 return -EFAULT;
7855 return 0;
7856 case AIRORRID: ridcode = comp->ridnum; break;
7857 default:
7858 return -EINVAL;
7859 }
7860
7861 if (ridcode == RID_WEP_TEMP || ridcode == RID_WEP_PERM) {
7862 /* Only super-user can read WEP keys */
7863 if (!capable(CAP_NET_ADMIN))
7864 return -EPERM;
7865 }
7866
7867 if ((iobuf = kzalloc(RIDSIZE, GFP_KERNEL)) == NULL)
7868 return -ENOMEM;
7869
7870 PC4500_readrid(ai, ridcode, iobuf, RIDSIZE, 1);
7871 /* get the count of bytes in the rid docs say 1st 2 bytes is it.
7872 * then return it to the user
7873 * 9/22/2000 Honor user given length
7874 */
7875 len = comp->len;
7876
7877 if (copy_to_user(comp->data, iobuf, min(len, (int)RIDSIZE))) {
7878 kfree (iobuf);
7879 return -EFAULT;
7880 }
7881 kfree (iobuf);
7882 return 0;
7883 }
7884
7885 /*
7886 * Danger Will Robinson write the rids here
7887 */
7888
writerids(struct net_device * dev,aironet_ioctl * comp)7889 static int writerids(struct net_device *dev, aironet_ioctl *comp)
7890 {
7891 struct airo_info *ai = dev->ml_priv;
7892 int ridcode;
7893 int enabled;
7894 int (*writer)(struct airo_info *, u16 rid, const void *, int, int);
7895 unsigned char *iobuf;
7896
7897 /* Only super-user can write RIDs */
7898 if (!capable(CAP_NET_ADMIN))
7899 return -EPERM;
7900
7901 if (test_bit(FLAG_FLASHING, &ai->flags))
7902 return -EIO;
7903
7904 ridcode = 0;
7905 writer = do_writerid;
7906
7907 switch(comp->command)
7908 {
7909 case AIROPSIDS: ridcode = RID_SSID; break;
7910 case AIROPCAP: ridcode = RID_CAPABILITIES; break;
7911 case AIROPAPLIST: ridcode = RID_APLIST; break;
7912 case AIROPCFG: ai->config.len = 0;
7913 clear_bit(FLAG_COMMIT, &ai->flags);
7914 ridcode = RID_CONFIG; break;
7915 case AIROPWEPKEYNV: ridcode = RID_WEP_PERM; break;
7916 case AIROPLEAPUSR: ridcode = RID_LEAPUSERNAME; break;
7917 case AIROPLEAPPWD: ridcode = RID_LEAPPASSWORD; break;
7918 case AIROPWEPKEY: ridcode = RID_WEP_TEMP; writer = PC4500_writerid;
7919 break;
7920 case AIROPLEAPUSR+1: ridcode = 0xFF2A; break;
7921 case AIROPLEAPUSR+2: ridcode = 0xFF2B; break;
7922
7923 /* this is not really a rid but a command given to the card
7924 * same with MAC off
7925 */
7926 case AIROPMACON:
7927 if (enable_MAC(ai, 1) != 0)
7928 return -EIO;
7929 return 0;
7930
7931 /*
7932 * Evidently this code in the airo driver does not get a symbol
7933 * as disable_MAC. it's probably so short the compiler does not gen one.
7934 */
7935 case AIROPMACOFF:
7936 disable_MAC(ai, 1);
7937 return 0;
7938
7939 /* This command merely clears the counts does not actually store any data
7940 * only reads rid. But as it changes the cards state, I put it in the
7941 * writerid routines.
7942 */
7943 case AIROPSTCLR:
7944 if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL)
7945 return -ENOMEM;
7946
7947 PC4500_readrid(ai, RID_STATSDELTACLEAR, iobuf, RIDSIZE, 1);
7948
7949 enabled = ai->micstats.enabled;
7950 memset(&ai->micstats, 0, sizeof(ai->micstats));
7951 ai->micstats.enabled = enabled;
7952
7953 if (copy_to_user(comp->data, iobuf,
7954 min((int)comp->len, (int)RIDSIZE))) {
7955 kfree (iobuf);
7956 return -EFAULT;
7957 }
7958 kfree (iobuf);
7959 return 0;
7960
7961 default:
7962 return -EOPNOTSUPP; /* Blarg! */
7963 }
7964 if (comp->len > RIDSIZE)
7965 return -EINVAL;
7966
7967 if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL)
7968 return -ENOMEM;
7969
7970 if (copy_from_user(iobuf, comp->data, comp->len)) {
7971 kfree (iobuf);
7972 return -EFAULT;
7973 }
7974
7975 if (comp->command == AIROPCFG) {
7976 ConfigRid *cfg = (ConfigRid *)iobuf;
7977
7978 if (test_bit(FLAG_MIC_CAPABLE, &ai->flags))
7979 cfg->opmode |= MODE_MIC;
7980
7981 if ((cfg->opmode & MODE_CFG_MASK) == MODE_STA_IBSS)
7982 set_bit (FLAG_ADHOC, &ai->flags);
7983 else
7984 clear_bit (FLAG_ADHOC, &ai->flags);
7985 }
7986
7987 if ((*writer)(ai, ridcode, iobuf, comp->len, 1)) {
7988 kfree (iobuf);
7989 return -EIO;
7990 }
7991 kfree (iobuf);
7992 return 0;
7993 }
7994
7995 /*****************************************************************************
7996 * Ancillary flash / mod functions much black magic lurkes here *
7997 *****************************************************************************
7998 */
7999
8000 /*
8001 * Flash command switch table
8002 */
8003
flashcard(struct net_device * dev,aironet_ioctl * comp)8004 static int flashcard(struct net_device *dev, aironet_ioctl *comp)
8005 {
8006 int z;
8007
8008 /* Only super-user can modify flash */
8009 if (!capable(CAP_NET_ADMIN))
8010 return -EPERM;
8011
8012 switch(comp->command)
8013 {
8014 case AIROFLSHRST:
8015 return cmdreset((struct airo_info *)dev->ml_priv);
8016
8017 case AIROFLSHSTFL:
8018 if (!AIRO_FLASH(dev) &&
8019 (AIRO_FLASH(dev) = kmalloc(FLASHSIZE, GFP_KERNEL)) == NULL)
8020 return -ENOMEM;
8021 return setflashmode((struct airo_info *)dev->ml_priv);
8022
8023 case AIROFLSHGCHR: /* Get char from aux */
8024 if (comp->len != sizeof(int))
8025 return -EINVAL;
8026 if (copy_from_user(&z, comp->data, comp->len))
8027 return -EFAULT;
8028 return flashgchar((struct airo_info *)dev->ml_priv, z, 8000);
8029
8030 case AIROFLSHPCHR: /* Send char to card. */
8031 if (comp->len != sizeof(int))
8032 return -EINVAL;
8033 if (copy_from_user(&z, comp->data, comp->len))
8034 return -EFAULT;
8035 return flashpchar((struct airo_info *)dev->ml_priv, z, 8000);
8036
8037 case AIROFLPUTBUF: /* Send 32k to card */
8038 if (!AIRO_FLASH(dev))
8039 return -ENOMEM;
8040 if (comp->len > FLASHSIZE)
8041 return -EINVAL;
8042 if (copy_from_user(AIRO_FLASH(dev), comp->data, comp->len))
8043 return -EFAULT;
8044
8045 flashputbuf((struct airo_info *)dev->ml_priv);
8046 return 0;
8047
8048 case AIRORESTART:
8049 if (flashrestart((struct airo_info *)dev->ml_priv, dev))
8050 return -EIO;
8051 return 0;
8052 }
8053 return -EINVAL;
8054 }
8055
8056 #define FLASH_COMMAND 0x7e7e
8057
8058 /*
8059 * STEP 1)
8060 * Disable MAC and do soft reset on
8061 * card.
8062 */
8063
cmdreset(struct airo_info * ai)8064 static int cmdreset(struct airo_info *ai)
8065 {
8066 disable_MAC(ai, 1);
8067
8068 if (!waitbusy (ai)) {
8069 airo_print_info(ai->dev->name, "Waitbusy hang before RESET");
8070 return -EBUSY;
8071 }
8072
8073 OUT4500(ai, COMMAND, CMD_SOFTRESET);
8074
8075 ssleep(1); /* WAS 600 12/7/00 */
8076
8077 if (!waitbusy (ai)) {
8078 airo_print_info(ai->dev->name, "Waitbusy hang AFTER RESET");
8079 return -EBUSY;
8080 }
8081 return 0;
8082 }
8083
8084 /* STEP 2)
8085 * Put the card in legendary flash
8086 * mode
8087 */
8088
setflashmode(struct airo_info * ai)8089 static int setflashmode (struct airo_info *ai)
8090 {
8091 set_bit (FLAG_FLASHING, &ai->flags);
8092
8093 OUT4500(ai, SWS0, FLASH_COMMAND);
8094 OUT4500(ai, SWS1, FLASH_COMMAND);
8095 if (probe) {
8096 OUT4500(ai, SWS0, FLASH_COMMAND);
8097 OUT4500(ai, COMMAND, 0x10);
8098 } else {
8099 OUT4500(ai, SWS2, FLASH_COMMAND);
8100 OUT4500(ai, SWS3, FLASH_COMMAND);
8101 OUT4500(ai, COMMAND, 0);
8102 }
8103 msleep(500); /* 500ms delay */
8104
8105 if (!waitbusy(ai)) {
8106 clear_bit (FLAG_FLASHING, &ai->flags);
8107 airo_print_info(ai->dev->name, "Waitbusy hang after setflash mode");
8108 return -EIO;
8109 }
8110 return 0;
8111 }
8112
8113 /* Put character to SWS0 wait for dwelltime
8114 * x 50us for echo .
8115 */
8116
flashpchar(struct airo_info * ai,int byte,int dwelltime)8117 static int flashpchar(struct airo_info *ai, int byte, int dwelltime)
8118 {
8119 int echo;
8120 int waittime;
8121
8122 byte |= 0x8000;
8123
8124 if (dwelltime == 0)
8125 dwelltime = 200;
8126
8127 waittime = dwelltime;
8128
8129 /* Wait for busy bit d15 to go false indicating buffer empty */
8130 while ((IN4500 (ai, SWS0) & 0x8000) && waittime > 0) {
8131 udelay (50);
8132 waittime -= 50;
8133 }
8134
8135 /* timeout for busy clear wait */
8136 if (waittime <= 0) {
8137 airo_print_info(ai->dev->name, "flash putchar busywait timeout!");
8138 return -EBUSY;
8139 }
8140
8141 /* Port is clear now write byte and wait for it to echo back */
8142 do {
8143 OUT4500(ai, SWS0, byte);
8144 udelay(50);
8145 dwelltime -= 50;
8146 echo = IN4500(ai, SWS1);
8147 } while (dwelltime >= 0 && echo != byte);
8148
8149 OUT4500(ai, SWS1, 0);
8150
8151 return (echo == byte) ? 0 : -EIO;
8152 }
8153
8154 /*
8155 * Get a character from the card matching matchbyte
8156 * Step 3)
8157 */
flashgchar(struct airo_info * ai,int matchbyte,int dwelltime)8158 static int flashgchar(struct airo_info *ai, int matchbyte, int dwelltime)
8159 {
8160 int rchar;
8161 unsigned char rbyte = 0;
8162
8163 do {
8164 rchar = IN4500(ai, SWS1);
8165
8166 if (dwelltime && !(0x8000 & rchar)) {
8167 dwelltime -= 10;
8168 mdelay(10);
8169 continue;
8170 }
8171 rbyte = 0xff & rchar;
8172
8173 if ((rbyte == matchbyte) && (0x8000 & rchar)) {
8174 OUT4500(ai, SWS1, 0);
8175 return 0;
8176 }
8177 if (rbyte == 0x81 || rbyte == 0x82 || rbyte == 0x83 || rbyte == 0x1a || 0xffff == rchar)
8178 break;
8179 OUT4500(ai, SWS1, 0);
8180
8181 } while (dwelltime > 0);
8182 return -EIO;
8183 }
8184
8185 /*
8186 * Transfer 32k of firmware data from user buffer to our buffer and
8187 * send to the card
8188 */
8189
flashputbuf(struct airo_info * ai)8190 static int flashputbuf(struct airo_info *ai)
8191 {
8192 int nwords;
8193
8194 /* Write stuff */
8195 if (test_bit(FLAG_MPI,&ai->flags))
8196 memcpy_toio(ai->pciaux + 0x8000, ai->flash, FLASHSIZE);
8197 else {
8198 OUT4500(ai, AUXPAGE, 0x100);
8199 OUT4500(ai, AUXOFF, 0);
8200
8201 for (nwords = 0; nwords != FLASHSIZE / 2; nwords++) {
8202 OUT4500(ai, AUXDATA, ai->flash[nwords] & 0xffff);
8203 }
8204 }
8205 OUT4500(ai, SWS0, 0x8000);
8206
8207 return 0;
8208 }
8209
8210 /*
8211 *
8212 */
flashrestart(struct airo_info * ai,struct net_device * dev)8213 static int flashrestart(struct airo_info *ai, struct net_device *dev)
8214 {
8215 int i, status;
8216
8217 ssleep(1); /* Added 12/7/00 */
8218 clear_bit (FLAG_FLASHING, &ai->flags);
8219 if (test_bit(FLAG_MPI, &ai->flags)) {
8220 status = mpi_init_descriptors(ai);
8221 if (status != SUCCESS)
8222 return status;
8223 }
8224 status = setup_card(ai, dev->dev_addr, 1);
8225
8226 if (!test_bit(FLAG_MPI,&ai->flags))
8227 for (i = 0; i < MAX_FIDS; i++) {
8228 ai->fids[i] = transmit_allocate
8229 (ai, AIRO_DEF_MTU, i >= MAX_FIDS / 2);
8230 }
8231
8232 ssleep(1); /* Added 12/7/00 */
8233 return status;
8234 }
8235 #endif /* CISCO_EXT */
8236
8237 /*
8238 This program is free software; you can redistribute it and/or
8239 modify it under the terms of the GNU General Public License
8240 as published by the Free Software Foundation; either version 2
8241 of the License, or (at your option) any later version.
8242
8243 This program is distributed in the hope that it will be useful,
8244 but WITHOUT ANY WARRANTY; without even the implied warranty of
8245 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
8246 GNU General Public License for more details.
8247
8248 In addition:
8249
8250 Redistribution and use in source and binary forms, with or without
8251 modification, are permitted provided that the following conditions
8252 are met:
8253
8254 1. Redistributions of source code must retain the above copyright
8255 notice, this list of conditions and the following disclaimer.
8256 2. Redistributions in binary form must reproduce the above copyright
8257 notice, this list of conditions and the following disclaimer in the
8258 documentation and/or other materials provided with the distribution.
8259 3. The name of the author may not be used to endorse or promote
8260 products derived from this software without specific prior written
8261 permission.
8262
8263 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
8264 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
8265 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
8266 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
8267 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
8268 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
8269 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
8270 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
8271 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
8272 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
8273 POSSIBILITY OF SUCH DAMAGE.
8274 */
8275
8276 module_init(airo_init_module);
8277 module_exit(airo_cleanup_module);
8278