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_SUPPORTED_DEVICE("Aironet 4500, 4800 and Cisco 340/350");
255 module_param_hw_array(io, int, ioport, NULL, 0);
256 module_param_hw_array(irq, int, irq, NULL, 0);
257 module_param_array(rates, int, NULL, 0);
258 module_param_array(ssids, charp, NULL, 0);
259 module_param(auto_wep, int, 0);
260 MODULE_PARM_DESC(auto_wep,
261 "If non-zero, the driver will keep looping through the authentication options until an association is made. "
262 "The value of auto_wep is number of the wep keys to check. "
263 "A value of 2 will try using the key at index 0 and index 1.");
264 module_param(aux_bap, int, 0);
265 MODULE_PARM_DESC(aux_bap,
266 "If non-zero, the driver will switch into a mode that seems to work better for older cards with some older buses. "
267 "Before switching it checks that the switch is needed.");
268 module_param(maxencrypt, int, 0);
269 MODULE_PARM_DESC(maxencrypt,
270 "The maximum speed that the card can do encryption. "
271 "Units are in 512kbs. "
272 "Zero (default) means there is no limit. "
273 "Older cards used to be limited to 2mbs (4).");
274 module_param(adhoc, int, 0);
275 MODULE_PARM_DESC(adhoc, "If non-zero, the card will start in adhoc mode.");
276 module_param(probe, int, 0);
277 MODULE_PARM_DESC(probe, "If zero, the driver won't start the card.");
278
279 module_param(proc_uid, int, 0);
280 MODULE_PARM_DESC(proc_uid, "The uid that the /proc files will belong to.");
281 module_param(proc_gid, int, 0);
282 MODULE_PARM_DESC(proc_gid, "The gid that the /proc files will belong to.");
283 module_param(airo_perm, int, 0);
284 MODULE_PARM_DESC(airo_perm, "The permission bits of /proc/[driver/]aironet.");
285 module_param(proc_perm, int, 0);
286 MODULE_PARM_DESC(proc_perm, "The permission bits of the files in /proc");
287
288 /* This is a kind of sloppy hack to get this information to OUT4500 and
289 IN4500. I would be extremely interested in the situation where this
290 doesn't work though!!! */
291 static int do8bitIO /* = 0 */;
292
293 /* Return codes */
294 #define SUCCESS 0
295 #define ERROR -1
296 #define NO_PACKET -2
297
298 /* Commands */
299 #define NOP2 0x0000
300 #define MAC_ENABLE 0x0001
301 #define MAC_DISABLE 0x0002
302 #define CMD_LOSE_SYNC 0x0003 /* Not sure what this does... */
303 #define CMD_SOFTRESET 0x0004
304 #define HOSTSLEEP 0x0005
305 #define CMD_MAGIC_PKT 0x0006
306 #define CMD_SETWAKEMASK 0x0007
307 #define CMD_READCFG 0x0008
308 #define CMD_SETMODE 0x0009
309 #define CMD_ALLOCATETX 0x000a
310 #define CMD_TRANSMIT 0x000b
311 #define CMD_DEALLOCATETX 0x000c
312 #define NOP 0x0010
313 #define CMD_WORKAROUND 0x0011
314 #define CMD_ALLOCATEAUX 0x0020
315 #define CMD_ACCESS 0x0021
316 #define CMD_PCIBAP 0x0022
317 #define CMD_PCIAUX 0x0023
318 #define CMD_ALLOCBUF 0x0028
319 #define CMD_GETTLV 0x0029
320 #define CMD_PUTTLV 0x002a
321 #define CMD_DELTLV 0x002b
322 #define CMD_FINDNEXTTLV 0x002c
323 #define CMD_PSPNODES 0x0030
324 #define CMD_SETCW 0x0031
325 #define CMD_SETPCF 0x0032
326 #define CMD_SETPHYREG 0x003e
327 #define CMD_TXTEST 0x003f
328 #define MAC_ENABLETX 0x0101
329 #define CMD_LISTBSS 0x0103
330 #define CMD_SAVECFG 0x0108
331 #define CMD_ENABLEAUX 0x0111
332 #define CMD_WRITERID 0x0121
333 #define CMD_USEPSPNODES 0x0130
334 #define MAC_ENABLERX 0x0201
335
336 /* Command errors */
337 #define ERROR_QUALIF 0x00
338 #define ERROR_ILLCMD 0x01
339 #define ERROR_ILLFMT 0x02
340 #define ERROR_INVFID 0x03
341 #define ERROR_INVRID 0x04
342 #define ERROR_LARGE 0x05
343 #define ERROR_NDISABL 0x06
344 #define ERROR_ALLOCBSY 0x07
345 #define ERROR_NORD 0x0B
346 #define ERROR_NOWR 0x0C
347 #define ERROR_INVFIDTX 0x0D
348 #define ERROR_TESTACT 0x0E
349 #define ERROR_TAGNFND 0x12
350 #define ERROR_DECODE 0x20
351 #define ERROR_DESCUNAV 0x21
352 #define ERROR_BADLEN 0x22
353 #define ERROR_MODE 0x80
354 #define ERROR_HOP 0x81
355 #define ERROR_BINTER 0x82
356 #define ERROR_RXMODE 0x83
357 #define ERROR_MACADDR 0x84
358 #define ERROR_RATES 0x85
359 #define ERROR_ORDER 0x86
360 #define ERROR_SCAN 0x87
361 #define ERROR_AUTH 0x88
362 #define ERROR_PSMODE 0x89
363 #define ERROR_RTYPE 0x8A
364 #define ERROR_DIVER 0x8B
365 #define ERROR_SSID 0x8C
366 #define ERROR_APLIST 0x8D
367 #define ERROR_AUTOWAKE 0x8E
368 #define ERROR_LEAP 0x8F
369
370 /* Registers */
371 #define COMMAND 0x00
372 #define PARAM0 0x02
373 #define PARAM1 0x04
374 #define PARAM2 0x06
375 #define STATUS 0x08
376 #define RESP0 0x0a
377 #define RESP1 0x0c
378 #define RESP2 0x0e
379 #define LINKSTAT 0x10
380 #define SELECT0 0x18
381 #define OFFSET0 0x1c
382 #define RXFID 0x20
383 #define TXALLOCFID 0x22
384 #define TXCOMPLFID 0x24
385 #define DATA0 0x36
386 #define EVSTAT 0x30
387 #define EVINTEN 0x32
388 #define EVACK 0x34
389 #define SWS0 0x28
390 #define SWS1 0x2a
391 #define SWS2 0x2c
392 #define SWS3 0x2e
393 #define AUXPAGE 0x3A
394 #define AUXOFF 0x3C
395 #define AUXDATA 0x3E
396
397 #define FID_TX 1
398 #define FID_RX 2
399 /* Offset into aux memory for descriptors */
400 #define AUX_OFFSET 0x800
401 /* Size of allocated packets */
402 #define PKTSIZE 1840
403 #define RIDSIZE 2048
404 /* Size of the transmit queue */
405 #define MAXTXQ 64
406
407 /* BAP selectors */
408 #define BAP0 0 /* Used for receiving packets */
409 #define BAP1 2 /* Used for xmiting packets and working with RIDS */
410
411 /* Flags */
412 #define COMMAND_BUSY 0x8000
413
414 #define BAP_BUSY 0x8000
415 #define BAP_ERR 0x4000
416 #define BAP_DONE 0x2000
417
418 #define PROMISC 0xffff
419 #define NOPROMISC 0x0000
420
421 #define EV_CMD 0x10
422 #define EV_CLEARCOMMANDBUSY 0x4000
423 #define EV_RX 0x01
424 #define EV_TX 0x02
425 #define EV_TXEXC 0x04
426 #define EV_ALLOC 0x08
427 #define EV_LINK 0x80
428 #define EV_AWAKE 0x100
429 #define EV_TXCPY 0x400
430 #define EV_UNKNOWN 0x800
431 #define EV_MIC 0x1000 /* Message Integrity Check Interrupt */
432 #define EV_AWAKEN 0x2000
433 #define STATUS_INTS (EV_AWAKE|EV_LINK|EV_TXEXC|EV_TX|EV_TXCPY|EV_RX|EV_MIC)
434
435 #ifdef CHECK_UNKNOWN_INTS
436 #define IGNORE_INTS (EV_CMD | EV_UNKNOWN)
437 #else
438 #define IGNORE_INTS (~STATUS_INTS)
439 #endif
440
441 /* RID TYPES */
442 #define RID_RW 0x20
443
444 /* The RIDs */
445 #define RID_CAPABILITIES 0xFF00
446 #define RID_APINFO 0xFF01
447 #define RID_RADIOINFO 0xFF02
448 #define RID_UNKNOWN3 0xFF03
449 #define RID_RSSI 0xFF04
450 #define RID_CONFIG 0xFF10
451 #define RID_SSID 0xFF11
452 #define RID_APLIST 0xFF12
453 #define RID_DRVNAME 0xFF13
454 #define RID_ETHERENCAP 0xFF14
455 #define RID_WEP_TEMP 0xFF15
456 #define RID_WEP_PERM 0xFF16
457 #define RID_MODULATION 0xFF17
458 #define RID_OPTIONS 0xFF18
459 #define RID_ACTUALCONFIG 0xFF20 /*readonly*/
460 #define RID_FACTORYCONFIG 0xFF21
461 #define RID_UNKNOWN22 0xFF22
462 #define RID_LEAPUSERNAME 0xFF23
463 #define RID_LEAPPASSWORD 0xFF24
464 #define RID_STATUS 0xFF50
465 #define RID_BEACON_HST 0xFF51
466 #define RID_BUSY_HST 0xFF52
467 #define RID_RETRIES_HST 0xFF53
468 #define RID_UNKNOWN54 0xFF54
469 #define RID_UNKNOWN55 0xFF55
470 #define RID_UNKNOWN56 0xFF56
471 #define RID_MIC 0xFF57
472 #define RID_STATS16 0xFF60
473 #define RID_STATS16DELTA 0xFF61
474 #define RID_STATS16DELTACLEAR 0xFF62
475 #define RID_STATS 0xFF68
476 #define RID_STATSDELTA 0xFF69
477 #define RID_STATSDELTACLEAR 0xFF6A
478 #define RID_ECHOTEST_RID 0xFF70
479 #define RID_ECHOTEST_RESULTS 0xFF71
480 #define RID_BSSLISTFIRST 0xFF72
481 #define RID_BSSLISTNEXT 0xFF73
482 #define RID_WPA_BSSLISTFIRST 0xFF74
483 #define RID_WPA_BSSLISTNEXT 0xFF75
484
485 typedef struct {
486 u16 cmd;
487 u16 parm0;
488 u16 parm1;
489 u16 parm2;
490 } Cmd;
491
492 typedef struct {
493 u16 status;
494 u16 rsp0;
495 u16 rsp1;
496 u16 rsp2;
497 } Resp;
498
499 /*
500 * Rids and endian-ness: The Rids will always be in cpu endian, since
501 * this all the patches from the big-endian guys end up doing that.
502 * so all rid access should use the read/writeXXXRid routines.
503 */
504
505 /* This structure came from an email sent to me from an engineer at
506 aironet for inclusion into this driver */
507 typedef struct WepKeyRid WepKeyRid;
508 struct WepKeyRid {
509 __le16 len;
510 __le16 kindex;
511 u8 mac[ETH_ALEN];
512 __le16 klen;
513 u8 key[16];
514 } __packed;
515
516 /* These structures are from the Aironet's PC4500 Developers Manual */
517 typedef struct Ssid Ssid;
518 struct Ssid {
519 __le16 len;
520 u8 ssid[32];
521 } __packed;
522
523 typedef struct SsidRid SsidRid;
524 struct SsidRid {
525 __le16 len;
526 Ssid ssids[3];
527 } __packed;
528
529 typedef struct ModulationRid ModulationRid;
530 struct ModulationRid {
531 __le16 len;
532 __le16 modulation;
533 #define MOD_DEFAULT cpu_to_le16(0)
534 #define MOD_CCK cpu_to_le16(1)
535 #define MOD_MOK cpu_to_le16(2)
536 } __packed;
537
538 typedef struct ConfigRid ConfigRid;
539 struct ConfigRid {
540 __le16 len; /* sizeof(ConfigRid) */
541 __le16 opmode; /* operating mode */
542 #define MODE_STA_IBSS cpu_to_le16(0)
543 #define MODE_STA_ESS cpu_to_le16(1)
544 #define MODE_AP cpu_to_le16(2)
545 #define MODE_AP_RPTR cpu_to_le16(3)
546 #define MODE_CFG_MASK cpu_to_le16(0xff)
547 #define MODE_ETHERNET_HOST cpu_to_le16(0<<8) /* rx payloads converted */
548 #define MODE_LLC_HOST cpu_to_le16(1<<8) /* rx payloads left as is */
549 #define MODE_AIRONET_EXTEND cpu_to_le16(1<<9) /* enable Aironet extenstions */
550 #define MODE_AP_INTERFACE cpu_to_le16(1<<10) /* enable ap interface extensions */
551 #define MODE_ANTENNA_ALIGN cpu_to_le16(1<<11) /* enable antenna alignment */
552 #define MODE_ETHER_LLC cpu_to_le16(1<<12) /* enable ethernet LLC */
553 #define MODE_LEAF_NODE cpu_to_le16(1<<13) /* enable leaf node bridge */
554 #define MODE_CF_POLLABLE cpu_to_le16(1<<14) /* enable CF pollable */
555 #define MODE_MIC cpu_to_le16(1<<15) /* enable MIC */
556 __le16 rmode; /* receive mode */
557 #define RXMODE_BC_MC_ADDR cpu_to_le16(0)
558 #define RXMODE_BC_ADDR cpu_to_le16(1) /* ignore multicasts */
559 #define RXMODE_ADDR cpu_to_le16(2) /* ignore multicast and broadcast */
560 #define RXMODE_RFMON cpu_to_le16(3) /* wireless monitor mode */
561 #define RXMODE_RFMON_ANYBSS cpu_to_le16(4)
562 #define RXMODE_LANMON cpu_to_le16(5) /* lan style monitor -- data packets only */
563 #define RXMODE_MASK cpu_to_le16(255)
564 #define RXMODE_DISABLE_802_3_HEADER cpu_to_le16(1<<8) /* disables 802.3 header on rx */
565 #define RXMODE_FULL_MASK (RXMODE_MASK | RXMODE_DISABLE_802_3_HEADER)
566 #define RXMODE_NORMALIZED_RSSI cpu_to_le16(1<<9) /* return normalized RSSI */
567 __le16 fragThresh;
568 __le16 rtsThres;
569 u8 macAddr[ETH_ALEN];
570 u8 rates[8];
571 __le16 shortRetryLimit;
572 __le16 longRetryLimit;
573 __le16 txLifetime; /* in kusec */
574 __le16 rxLifetime; /* in kusec */
575 __le16 stationary;
576 __le16 ordering;
577 __le16 u16deviceType; /* for overriding device type */
578 __le16 cfpRate;
579 __le16 cfpDuration;
580 __le16 _reserved1[3];
581 /*---------- Scanning/Associating ----------*/
582 __le16 scanMode;
583 #define SCANMODE_ACTIVE cpu_to_le16(0)
584 #define SCANMODE_PASSIVE cpu_to_le16(1)
585 #define SCANMODE_AIROSCAN cpu_to_le16(2)
586 __le16 probeDelay; /* in kusec */
587 __le16 probeEnergyTimeout; /* in kusec */
588 __le16 probeResponseTimeout;
589 __le16 beaconListenTimeout;
590 __le16 joinNetTimeout;
591 __le16 authTimeout;
592 __le16 authType;
593 #define AUTH_OPEN cpu_to_le16(0x1)
594 #define AUTH_ENCRYPT cpu_to_le16(0x101)
595 #define AUTH_SHAREDKEY cpu_to_le16(0x102)
596 #define AUTH_ALLOW_UNENCRYPTED cpu_to_le16(0x200)
597 __le16 associationTimeout;
598 __le16 specifiedApTimeout;
599 __le16 offlineScanInterval;
600 __le16 offlineScanDuration;
601 __le16 linkLossDelay;
602 __le16 maxBeaconLostTime;
603 __le16 refreshInterval;
604 #define DISABLE_REFRESH cpu_to_le16(0xFFFF)
605 __le16 _reserved1a[1];
606 /*---------- Power save operation ----------*/
607 __le16 powerSaveMode;
608 #define POWERSAVE_CAM cpu_to_le16(0)
609 #define POWERSAVE_PSP cpu_to_le16(1)
610 #define POWERSAVE_PSPCAM cpu_to_le16(2)
611 __le16 sleepForDtims;
612 __le16 listenInterval;
613 __le16 fastListenInterval;
614 __le16 listenDecay;
615 __le16 fastListenDelay;
616 __le16 _reserved2[2];
617 /*---------- Ap/Ibss config items ----------*/
618 __le16 beaconPeriod;
619 __le16 atimDuration;
620 __le16 hopPeriod;
621 __le16 channelSet;
622 __le16 channel;
623 __le16 dtimPeriod;
624 __le16 bridgeDistance;
625 __le16 radioID;
626 /*---------- Radio configuration ----------*/
627 __le16 radioType;
628 #define RADIOTYPE_DEFAULT cpu_to_le16(0)
629 #define RADIOTYPE_802_11 cpu_to_le16(1)
630 #define RADIOTYPE_LEGACY cpu_to_le16(2)
631 u8 rxDiversity;
632 u8 txDiversity;
633 __le16 txPower;
634 #define TXPOWER_DEFAULT 0
635 __le16 rssiThreshold;
636 #define RSSI_DEFAULT 0
637 __le16 modulation;
638 #define PREAMBLE_AUTO cpu_to_le16(0)
639 #define PREAMBLE_LONG cpu_to_le16(1)
640 #define PREAMBLE_SHORT cpu_to_le16(2)
641 __le16 preamble;
642 __le16 homeProduct;
643 __le16 radioSpecific;
644 /*---------- Aironet Extensions ----------*/
645 u8 nodeName[16];
646 __le16 arlThreshold;
647 __le16 arlDecay;
648 __le16 arlDelay;
649 __le16 _reserved4[1];
650 /*---------- Aironet Extensions ----------*/
651 u8 magicAction;
652 #define MAGIC_ACTION_STSCHG 1
653 #define MAGIC_ACTION_RESUME 2
654 #define MAGIC_IGNORE_MCAST (1<<8)
655 #define MAGIC_IGNORE_BCAST (1<<9)
656 #define MAGIC_SWITCH_TO_PSP (0<<10)
657 #define MAGIC_STAY_IN_CAM (1<<10)
658 u8 magicControl;
659 __le16 autoWake;
660 } __packed;
661
662 typedef struct StatusRid StatusRid;
663 struct StatusRid {
664 __le16 len;
665 u8 mac[ETH_ALEN];
666 __le16 mode;
667 __le16 errorCode;
668 __le16 sigQuality;
669 __le16 SSIDlen;
670 char SSID[32];
671 char apName[16];
672 u8 bssid[4][ETH_ALEN];
673 __le16 beaconPeriod;
674 __le16 dimPeriod;
675 __le16 atimDuration;
676 __le16 hopPeriod;
677 __le16 channelSet;
678 __le16 channel;
679 __le16 hopsToBackbone;
680 __le16 apTotalLoad;
681 __le16 generatedLoad;
682 __le16 accumulatedArl;
683 __le16 signalQuality;
684 __le16 currentXmitRate;
685 __le16 apDevExtensions;
686 __le16 normalizedSignalStrength;
687 __le16 shortPreamble;
688 u8 apIP[4];
689 u8 noisePercent; /* Noise percent in last second */
690 u8 noisedBm; /* Noise dBm in last second */
691 u8 noiseAvePercent; /* Noise percent in last minute */
692 u8 noiseAvedBm; /* Noise dBm in last minute */
693 u8 noiseMaxPercent; /* Highest noise percent in last minute */
694 u8 noiseMaxdBm; /* Highest noise dbm in last minute */
695 __le16 load;
696 u8 carrier[4];
697 __le16 assocStatus;
698 #define STAT_NOPACKETS 0
699 #define STAT_NOCARRIERSET 10
700 #define STAT_GOTCARRIERSET 11
701 #define STAT_WRONGSSID 20
702 #define STAT_BADCHANNEL 25
703 #define STAT_BADBITRATES 30
704 #define STAT_BADPRIVACY 35
705 #define STAT_APFOUND 40
706 #define STAT_APREJECTED 50
707 #define STAT_AUTHENTICATING 60
708 #define STAT_DEAUTHENTICATED 61
709 #define STAT_AUTHTIMEOUT 62
710 #define STAT_ASSOCIATING 70
711 #define STAT_DEASSOCIATED 71
712 #define STAT_ASSOCTIMEOUT 72
713 #define STAT_NOTAIROAP 73
714 #define STAT_ASSOCIATED 80
715 #define STAT_LEAPING 90
716 #define STAT_LEAPFAILED 91
717 #define STAT_LEAPTIMEDOUT 92
718 #define STAT_LEAPCOMPLETE 93
719 } __packed;
720
721 typedef struct StatsRid StatsRid;
722 struct StatsRid {
723 __le16 len;
724 __le16 spacer;
725 __le32 vals[100];
726 } __packed;
727
728 typedef struct APListRid APListRid;
729 struct APListRid {
730 __le16 len;
731 u8 ap[4][ETH_ALEN];
732 } __packed;
733
734 typedef struct CapabilityRid CapabilityRid;
735 struct CapabilityRid {
736 __le16 len;
737 char oui[3];
738 char zero;
739 __le16 prodNum;
740 char manName[32];
741 char prodName[16];
742 char prodVer[8];
743 char factoryAddr[ETH_ALEN];
744 char aironetAddr[ETH_ALEN];
745 __le16 radioType;
746 __le16 country;
747 char callid[ETH_ALEN];
748 char supportedRates[8];
749 char rxDiversity;
750 char txDiversity;
751 __le16 txPowerLevels[8];
752 __le16 hardVer;
753 __le16 hardCap;
754 __le16 tempRange;
755 __le16 softVer;
756 __le16 softSubVer;
757 __le16 interfaceVer;
758 __le16 softCap;
759 __le16 bootBlockVer;
760 __le16 requiredHard;
761 __le16 extSoftCap;
762 } __packed;
763
764 /* Only present on firmware >= 5.30.17 */
765 typedef struct BSSListRidExtra BSSListRidExtra;
766 struct BSSListRidExtra {
767 __le16 unknown[4];
768 u8 fixed[12]; /* WLAN management frame */
769 u8 iep[624];
770 } __packed;
771
772 typedef struct BSSListRid BSSListRid;
773 struct BSSListRid {
774 __le16 len;
775 __le16 index; /* First is 0 and 0xffff means end of list */
776 #define RADIO_FH 1 /* Frequency hopping radio type */
777 #define RADIO_DS 2 /* Direct sequence radio type */
778 #define RADIO_TMA 4 /* Proprietary radio used in old cards (2500) */
779 __le16 radioType;
780 u8 bssid[ETH_ALEN]; /* Mac address of the BSS */
781 u8 zero;
782 u8 ssidLen;
783 u8 ssid[32];
784 __le16 dBm;
785 #define CAP_ESS cpu_to_le16(1<<0)
786 #define CAP_IBSS cpu_to_le16(1<<1)
787 #define CAP_PRIVACY cpu_to_le16(1<<4)
788 #define CAP_SHORTHDR cpu_to_le16(1<<5)
789 __le16 cap;
790 __le16 beaconInterval;
791 u8 rates[8]; /* Same as rates for config rid */
792 struct { /* For frequency hopping only */
793 __le16 dwell;
794 u8 hopSet;
795 u8 hopPattern;
796 u8 hopIndex;
797 u8 fill;
798 } fh;
799 __le16 dsChannel;
800 __le16 atimWindow;
801
802 /* Only present on firmware >= 5.30.17 */
803 BSSListRidExtra extra;
804 } __packed;
805
806 typedef struct {
807 BSSListRid bss;
808 struct list_head list;
809 } BSSListElement;
810
811 typedef struct tdsRssiEntry tdsRssiEntry;
812 struct tdsRssiEntry {
813 u8 rssipct;
814 u8 rssidBm;
815 } __packed;
816
817 typedef struct tdsRssiRid tdsRssiRid;
818 struct tdsRssiRid {
819 u16 len;
820 tdsRssiEntry x[256];
821 } __packed;
822
823 typedef struct MICRid MICRid;
824 struct MICRid {
825 __le16 len;
826 __le16 state;
827 __le16 multicastValid;
828 u8 multicast[16];
829 __le16 unicastValid;
830 u8 unicast[16];
831 } __packed;
832
833 typedef struct MICBuffer MICBuffer;
834 struct MICBuffer {
835 __be16 typelen;
836
837 union {
838 u8 snap[8];
839 struct {
840 u8 dsap;
841 u8 ssap;
842 u8 control;
843 u8 orgcode[3];
844 u8 fieldtype[2];
845 } llc;
846 } u;
847 __be32 mic;
848 __be32 seq;
849 } __packed;
850
851 typedef struct {
852 u8 da[ETH_ALEN];
853 u8 sa[ETH_ALEN];
854 } etherHead;
855
856 #define TXCTL_TXOK (1<<1) /* report if tx is ok */
857 #define TXCTL_TXEX (1<<2) /* report if tx fails */
858 #define TXCTL_802_3 (0<<3) /* 802.3 packet */
859 #define TXCTL_802_11 (1<<3) /* 802.11 mac packet */
860 #define TXCTL_ETHERNET (0<<4) /* payload has ethertype */
861 #define TXCTL_LLC (1<<4) /* payload is llc */
862 #define TXCTL_RELEASE (0<<5) /* release after completion */
863 #define TXCTL_NORELEASE (1<<5) /* on completion returns to host */
864
865 #define BUSY_FID 0x10000
866
867 #ifdef CISCO_EXT
868 #define AIROMAGIC 0xa55a
869 /* Warning : SIOCDEVPRIVATE may disapear during 2.5.X - Jean II */
870 #ifdef SIOCIWFIRSTPRIV
871 #ifdef SIOCDEVPRIVATE
872 #define AIROOLDIOCTL SIOCDEVPRIVATE
873 #define AIROOLDIDIFC AIROOLDIOCTL + 1
874 #endif /* SIOCDEVPRIVATE */
875 #else /* SIOCIWFIRSTPRIV */
876 #define SIOCIWFIRSTPRIV SIOCDEVPRIVATE
877 #endif /* SIOCIWFIRSTPRIV */
878 /* This may be wrong. When using the new SIOCIWFIRSTPRIV range, we probably
879 * should use only "GET" ioctls (last bit set to 1). "SET" ioctls are root
880 * only and don't return the modified struct ifreq to the application which
881 * is usually a problem. - Jean II */
882 #define AIROIOCTL SIOCIWFIRSTPRIV
883 #define AIROIDIFC AIROIOCTL + 1
884
885 /* Ioctl constants to be used in airo_ioctl.command */
886
887 #define AIROGCAP 0 // Capability rid
888 #define AIROGCFG 1 // USED A LOT
889 #define AIROGSLIST 2 // System ID list
890 #define AIROGVLIST 3 // List of specified AP's
891 #define AIROGDRVNAM 4 // NOTUSED
892 #define AIROGEHTENC 5 // NOTUSED
893 #define AIROGWEPKTMP 6
894 #define AIROGWEPKNV 7
895 #define AIROGSTAT 8
896 #define AIROGSTATSC32 9
897 #define AIROGSTATSD32 10
898 #define AIROGMICRID 11
899 #define AIROGMICSTATS 12
900 #define AIROGFLAGS 13
901 #define AIROGID 14
902 #define AIRORRID 15
903 #define AIRORSWVERSION 17
904
905 /* Leave gap of 40 commands after AIROGSTATSD32 for future */
906
907 #define AIROPCAP AIROGSTATSD32 + 40
908 #define AIROPVLIST AIROPCAP + 1
909 #define AIROPSLIST AIROPVLIST + 1
910 #define AIROPCFG AIROPSLIST + 1
911 #define AIROPSIDS AIROPCFG + 1
912 #define AIROPAPLIST AIROPSIDS + 1
913 #define AIROPMACON AIROPAPLIST + 1 /* Enable mac */
914 #define AIROPMACOFF AIROPMACON + 1 /* Disable mac */
915 #define AIROPSTCLR AIROPMACOFF + 1
916 #define AIROPWEPKEY AIROPSTCLR + 1
917 #define AIROPWEPKEYNV AIROPWEPKEY + 1
918 #define AIROPLEAPPWD AIROPWEPKEYNV + 1
919 #define AIROPLEAPUSR AIROPLEAPPWD + 1
920
921 /* Flash codes */
922
923 #define AIROFLSHRST AIROPWEPKEYNV + 40
924 #define AIROFLSHGCHR AIROFLSHRST + 1
925 #define AIROFLSHSTFL AIROFLSHGCHR + 1
926 #define AIROFLSHPCHR AIROFLSHSTFL + 1
927 #define AIROFLPUTBUF AIROFLSHPCHR + 1
928 #define AIRORESTART AIROFLPUTBUF + 1
929
930 #define FLASHSIZE 32768
931 #define AUXMEMSIZE (256 * 1024)
932
933 typedef struct aironet_ioctl {
934 unsigned short command; // What to do
935 unsigned short len; // Len of data
936 unsigned short ridnum; // rid number
937 unsigned char __user *data; // d-data
938 } aironet_ioctl;
939
940 static const char swversion[] = "2.1";
941 #endif /* CISCO_EXT */
942
943 #define NUM_MODULES 2
944 #define MIC_MSGLEN_MAX 2400
945 #define EMMH32_MSGLEN_MAX MIC_MSGLEN_MAX
946 #define AIRO_DEF_MTU 2312
947
948 typedef struct {
949 u32 size; // size
950 u8 enabled; // MIC enabled or not
951 u32 rxSuccess; // successful packets received
952 u32 rxIncorrectMIC; // pkts dropped due to incorrect MIC comparison
953 u32 rxNotMICed; // pkts dropped due to not being MIC'd
954 u32 rxMICPlummed; // pkts dropped due to not having a MIC plummed
955 u32 rxWrongSequence; // pkts dropped due to sequence number violation
956 u32 reserve[32];
957 } mic_statistics;
958
959 typedef struct {
960 __be32 coeff[((EMMH32_MSGLEN_MAX)+3)>>2];
961 u64 accum; // accumulated mic, reduced to u32 in final()
962 int position; // current position (byte offset) in message
963 union {
964 u8 d8[4];
965 __be32 d32;
966 } part; // saves partial message word across update() calls
967 } emmh32_context;
968
969 typedef struct {
970 emmh32_context seed; // Context - the seed
971 u32 rx; // Received sequence number
972 u32 tx; // Tx sequence number
973 u32 window; // Start of window
974 u8 valid; // Flag to say if context is valid or not
975 u8 key[16];
976 } miccntx;
977
978 typedef struct {
979 miccntx mCtx; // Multicast context
980 miccntx uCtx; // Unicast context
981 } mic_module;
982
983 typedef struct {
984 unsigned int rid: 16;
985 unsigned int len: 15;
986 unsigned int valid: 1;
987 dma_addr_t host_addr;
988 } Rid;
989
990 typedef struct {
991 unsigned int offset: 15;
992 unsigned int eoc: 1;
993 unsigned int len: 15;
994 unsigned int valid: 1;
995 dma_addr_t host_addr;
996 } TxFid;
997
998 struct rx_hdr {
999 __le16 status, len;
1000 u8 rssi[2];
1001 u8 rate;
1002 u8 freq;
1003 __le16 tmp[4];
1004 } __packed;
1005
1006 typedef struct {
1007 unsigned int ctl: 15;
1008 unsigned int rdy: 1;
1009 unsigned int len: 15;
1010 unsigned int valid: 1;
1011 dma_addr_t host_addr;
1012 } RxFid;
1013
1014 /*
1015 * Host receive descriptor
1016 */
1017 typedef struct {
1018 unsigned char __iomem *card_ram_off; /* offset into card memory of the
1019 desc */
1020 RxFid rx_desc; /* card receive descriptor */
1021 char *virtual_host_addr; /* virtual address of host receive
1022 buffer */
1023 int pending;
1024 } HostRxDesc;
1025
1026 /*
1027 * Host transmit descriptor
1028 */
1029 typedef struct {
1030 unsigned char __iomem *card_ram_off; /* offset into card memory of the
1031 desc */
1032 TxFid tx_desc; /* card transmit descriptor */
1033 char *virtual_host_addr; /* virtual address of host receive
1034 buffer */
1035 int pending;
1036 } HostTxDesc;
1037
1038 /*
1039 * Host RID descriptor
1040 */
1041 typedef struct {
1042 unsigned char __iomem *card_ram_off; /* offset into card memory of the
1043 descriptor */
1044 Rid rid_desc; /* card RID descriptor */
1045 char *virtual_host_addr; /* virtual address of host receive
1046 buffer */
1047 } HostRidDesc;
1048
1049 typedef struct {
1050 u16 sw0;
1051 u16 sw1;
1052 u16 status;
1053 u16 len;
1054 #define HOST_SET (1 << 0)
1055 #define HOST_INT_TX (1 << 1) /* Interrupt on successful TX */
1056 #define HOST_INT_TXERR (1 << 2) /* Interrupt on unseccessful TX */
1057 #define HOST_LCC_PAYLOAD (1 << 4) /* LLC payload, 0 = Ethertype */
1058 #define HOST_DONT_RLSE (1 << 5) /* Don't release buffer when done */
1059 #define HOST_DONT_RETRY (1 << 6) /* Don't retry trasmit */
1060 #define HOST_CLR_AID (1 << 7) /* clear AID failure */
1061 #define HOST_RTS (1 << 9) /* Force RTS use */
1062 #define HOST_SHORT (1 << 10) /* Do short preamble */
1063 u16 ctl;
1064 u16 aid;
1065 u16 retries;
1066 u16 fill;
1067 } TxCtlHdr;
1068
1069 typedef struct {
1070 u16 ctl;
1071 u16 duration;
1072 char addr1[6];
1073 char addr2[6];
1074 char addr3[6];
1075 u16 seq;
1076 char addr4[6];
1077 } WifiHdr;
1078
1079
1080 typedef struct {
1081 TxCtlHdr ctlhdr;
1082 u16 fill1;
1083 u16 fill2;
1084 WifiHdr wifihdr;
1085 u16 gaplen;
1086 u16 status;
1087 } WifiCtlHdr;
1088
1089 static WifiCtlHdr wifictlhdr8023 = {
1090 .ctlhdr = {
1091 .ctl = HOST_DONT_RLSE,
1092 }
1093 };
1094
1095 // A few details needed for WEP (Wireless Equivalent Privacy)
1096 #define MAX_KEY_SIZE 13 // 128 (?) bits
1097 #define MIN_KEY_SIZE 5 // 40 bits RC4 - WEP
1098 typedef struct wep_key_t {
1099 u16 len;
1100 u8 key[16]; /* 40-bit and 104-bit keys */
1101 } wep_key_t;
1102
1103 /* List of Wireless Handlers (new API) */
1104 static const struct iw_handler_def airo_handler_def;
1105
1106 static const char version[] = "airo.c 0.6 (Ben Reed & Javier Achirica)";
1107
1108 struct airo_info;
1109
1110 static int get_dec_u16(char *buffer, int *start, int limit);
1111 static void OUT4500(struct airo_info *, u16 reg, u16 value);
1112 static unsigned short IN4500(struct airo_info *, u16 reg);
1113 static u16 setup_card(struct airo_info*, u8 *mac, int lock);
1114 static int enable_MAC(struct airo_info *ai, int lock);
1115 static void disable_MAC(struct airo_info *ai, int lock);
1116 static void enable_interrupts(struct airo_info*);
1117 static void disable_interrupts(struct airo_info*);
1118 static u16 issuecommand(struct airo_info*, Cmd *pCmd, Resp *pRsp);
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 static int transmit_802_11_packet(struct airo_info*, int len, char *pPacket);
1135
1136 static int mpi_send_packet(struct net_device *dev);
1137 static void mpi_unmap_card(struct pci_dev *pci);
1138 static void mpi_receive_802_3(struct airo_info *ai);
1139 static void mpi_receive_802_11(struct airo_info *ai);
1140 static int waitbusy(struct airo_info *ai);
1141
1142 static irqreturn_t airo_interrupt(int irq, void* dev_id);
1143 static int airo_thread(void *data);
1144 static void timer_func(struct net_device *dev);
1145 static int airo_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
1146 static struct iw_statistics *airo_get_wireless_stats(struct net_device *dev);
1147 static void airo_read_wireless_stats(struct airo_info *local);
1148 #ifdef CISCO_EXT
1149 static int readrids(struct net_device *dev, aironet_ioctl *comp);
1150 static int writerids(struct net_device *dev, aironet_ioctl *comp);
1151 static int flashcard(struct net_device *dev, aironet_ioctl *comp);
1152 #endif /* CISCO_EXT */
1153 static void micinit(struct airo_info *ai);
1154 static int micsetup(struct airo_info *ai);
1155 static int encapsulate(struct airo_info *ai, etherHead *pPacket, MICBuffer *buffer, int len);
1156 static int decapsulate(struct airo_info *ai, MICBuffer *mic, etherHead *pPacket, u16 payLen);
1157
1158 static u8 airo_rssi_to_dbm(tdsRssiEntry *rssi_rid, u8 rssi);
1159 static u8 airo_dbm_to_pct(tdsRssiEntry *rssi_rid, u8 dbm);
1160
1161 static void airo_networks_free(struct airo_info *ai);
1162
1163 struct airo_info {
1164 struct net_device *dev;
1165 struct list_head dev_list;
1166 /* Note, we can have MAX_FIDS outstanding. FIDs are 16-bits, so we
1167 use the high bit to mark whether it is in use. */
1168 #define MAX_FIDS 6
1169 #define MPI_MAX_FIDS 1
1170 u32 fids[MAX_FIDS];
1171 ConfigRid config;
1172 char keyindex; // Used with auto wep
1173 char defindex; // Used with auto wep
1174 struct proc_dir_entry *proc_entry;
1175 spinlock_t aux_lock;
1176 #define FLAG_RADIO_OFF 0 /* User disabling of MAC */
1177 #define FLAG_RADIO_DOWN 1 /* ifup/ifdown disabling of MAC */
1178 #define FLAG_RADIO_MASK 0x03
1179 #define FLAG_ENABLED 2
1180 #define FLAG_ADHOC 3 /* Needed by MIC */
1181 #define FLAG_MIC_CAPABLE 4
1182 #define FLAG_UPDATE_MULTI 5
1183 #define FLAG_UPDATE_UNI 6
1184 #define FLAG_802_11 7
1185 #define FLAG_PROMISC 8 /* IFF_PROMISC 0x100 - include/linux/if.h */
1186 #define FLAG_PENDING_XMIT 9
1187 #define FLAG_PENDING_XMIT11 10
1188 #define FLAG_MPI 11
1189 #define FLAG_REGISTERED 12
1190 #define FLAG_COMMIT 13
1191 #define FLAG_RESET 14
1192 #define FLAG_FLASHING 15
1193 #define FLAG_WPA_CAPABLE 16
1194 unsigned long flags;
1195 #define JOB_DIE 0
1196 #define JOB_XMIT 1
1197 #define JOB_XMIT11 2
1198 #define JOB_STATS 3
1199 #define JOB_PROMISC 4
1200 #define JOB_MIC 5
1201 #define JOB_EVENT 6
1202 #define JOB_AUTOWEP 7
1203 #define JOB_WSTATS 8
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);
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)2101 static void airo_end_xmit(struct net_device *dev)
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);
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);
2170 return NETDEV_TX_OK;
2171 }
2172
airo_end_xmit11(struct net_device * dev)2173 static void airo_end_xmit11(struct net_device *dev)
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);
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);
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 /* Get stats out of the card if available */
2292 if (down_trylock(&local->sem) != 0) {
2293 set_bit(JOB_STATS, &local->jobs);
2294 wake_up_interruptible(&local->thr_wait);
2295 } else
2296 airo_read_stats(dev);
2297 }
2298
2299 return &dev->stats;
2300 }
2301
airo_set_promisc(struct airo_info * ai)2302 static void airo_set_promisc(struct airo_info *ai)
2303 {
2304 Cmd cmd;
2305 Resp rsp;
2306
2307 memset(&cmd, 0, sizeof(cmd));
2308 cmd.cmd = CMD_SETMODE;
2309 clear_bit(JOB_PROMISC, &ai->jobs);
2310 cmd.parm0=(ai->flags&IFF_PROMISC) ? PROMISC : NOPROMISC;
2311 issuecommand(ai, &cmd, &rsp);
2312 up(&ai->sem);
2313 }
2314
airo_set_multicast_list(struct net_device * dev)2315 static void airo_set_multicast_list(struct net_device *dev)
2316 {
2317 struct airo_info *ai = dev->ml_priv;
2318
2319 if ((dev->flags ^ ai->flags) & IFF_PROMISC) {
2320 change_bit(FLAG_PROMISC, &ai->flags);
2321 if (down_trylock(&ai->sem) != 0) {
2322 set_bit(JOB_PROMISC, &ai->jobs);
2323 wake_up_interruptible(&ai->thr_wait);
2324 } else
2325 airo_set_promisc(ai);
2326 }
2327
2328 if ((dev->flags&IFF_ALLMULTI) || !netdev_mc_empty(dev)) {
2329 /* Turn on multicast. (Should be already setup...) */
2330 }
2331 }
2332
airo_set_mac_address(struct net_device * dev,void * p)2333 static int airo_set_mac_address(struct net_device *dev, void *p)
2334 {
2335 struct airo_info *ai = dev->ml_priv;
2336 struct sockaddr *addr = p;
2337
2338 readConfigRid(ai, 1);
2339 memcpy (ai->config.macAddr, addr->sa_data, dev->addr_len);
2340 set_bit (FLAG_COMMIT, &ai->flags);
2341 disable_MAC(ai, 1);
2342 writeConfigRid (ai, 1);
2343 enable_MAC(ai, 1);
2344 memcpy (ai->dev->dev_addr, addr->sa_data, dev->addr_len);
2345 if (ai->wifidev)
2346 memcpy (ai->wifidev->dev_addr, addr->sa_data, dev->addr_len);
2347 return 0;
2348 }
2349
2350 static LIST_HEAD(airo_devices);
2351
add_airo_dev(struct airo_info * ai)2352 static void add_airo_dev(struct airo_info *ai)
2353 {
2354 /* Upper layers already keep track of PCI devices,
2355 * so we only need to remember our non-PCI cards. */
2356 if (!ai->pci)
2357 list_add_tail(&ai->dev_list, &airo_devices);
2358 }
2359
del_airo_dev(struct airo_info * ai)2360 static void del_airo_dev(struct airo_info *ai)
2361 {
2362 if (!ai->pci)
2363 list_del(&ai->dev_list);
2364 }
2365
airo_close(struct net_device * dev)2366 static int airo_close(struct net_device *dev)
2367 {
2368 struct airo_info *ai = dev->ml_priv;
2369
2370 netif_stop_queue(dev);
2371
2372 if (ai->wifidev != dev) {
2373 #ifdef POWER_ON_DOWN
2374 /* Shut power to the card. The idea is that the user can save
2375 * power when he doesn't need the card with "ifconfig down".
2376 * That's the method that is most friendly towards the network
2377 * stack (i.e. the network stack won't try to broadcast
2378 * anything on the interface and routes are gone. Jean II */
2379 set_bit(FLAG_RADIO_DOWN, &ai->flags);
2380 disable_MAC(ai, 1);
2381 #endif
2382 disable_interrupts(ai);
2383
2384 free_irq(dev->irq, dev);
2385
2386 set_bit(JOB_DIE, &ai->jobs);
2387 kthread_stop(ai->airo_thread_task);
2388 }
2389 return 0;
2390 }
2391
stop_airo_card(struct net_device * dev,int freeres)2392 void stop_airo_card(struct net_device *dev, int freeres)
2393 {
2394 struct airo_info *ai = dev->ml_priv;
2395
2396 set_bit(FLAG_RADIO_DOWN, &ai->flags);
2397 disable_MAC(ai, 1);
2398 disable_interrupts(ai);
2399 takedown_proc_entry(dev, ai);
2400 if (test_bit(FLAG_REGISTERED, &ai->flags)) {
2401 unregister_netdev(dev);
2402 if (ai->wifidev) {
2403 unregister_netdev(ai->wifidev);
2404 free_netdev(ai->wifidev);
2405 ai->wifidev = NULL;
2406 }
2407 clear_bit(FLAG_REGISTERED, &ai->flags);
2408 }
2409 /*
2410 * Clean out tx queue
2411 */
2412 if (test_bit(FLAG_MPI, &ai->flags) && !skb_queue_empty(&ai->txq)) {
2413 struct sk_buff *skb = NULL;
2414 for (;(skb = skb_dequeue(&ai->txq));)
2415 dev_kfree_skb(skb);
2416 }
2417
2418 airo_networks_free (ai);
2419
2420 kfree(ai->flash);
2421 kfree(ai->rssi);
2422 kfree(ai->SSID);
2423 if (freeres) {
2424 /* PCMCIA frees this stuff, so only for PCI and ISA */
2425 release_region(dev->base_addr, 64);
2426 if (test_bit(FLAG_MPI, &ai->flags)) {
2427 if (ai->pci)
2428 mpi_unmap_card(ai->pci);
2429 if (ai->pcimem)
2430 iounmap(ai->pcimem);
2431 if (ai->pciaux)
2432 iounmap(ai->pciaux);
2433 dma_free_coherent(&ai->pci->dev, PCI_SHARED_LEN,
2434 ai->shared, ai->shared_dma);
2435 }
2436 }
2437 crypto_free_sync_skcipher(ai->tfm);
2438 del_airo_dev(ai);
2439 free_netdev(dev);
2440 }
2441
2442 EXPORT_SYMBOL(stop_airo_card);
2443
wll_header_parse(const struct sk_buff * skb,unsigned char * haddr)2444 static int wll_header_parse(const struct sk_buff *skb, unsigned char *haddr)
2445 {
2446 memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN);
2447 return ETH_ALEN;
2448 }
2449
mpi_unmap_card(struct pci_dev * pci)2450 static void mpi_unmap_card(struct pci_dev *pci)
2451 {
2452 unsigned long mem_start = pci_resource_start(pci, 1);
2453 unsigned long mem_len = pci_resource_len(pci, 1);
2454 unsigned long aux_start = pci_resource_start(pci, 2);
2455 unsigned long aux_len = AUXMEMSIZE;
2456
2457 release_mem_region(aux_start, aux_len);
2458 release_mem_region(mem_start, mem_len);
2459 }
2460
2461 /*************************************************************
2462 * This routine assumes that descriptors have been setup .
2463 * Run at insmod time or after reset when the descriptors
2464 * have been initialized . Returns 0 if all is well nz
2465 * otherwise . Does not allocate memory but sets up card
2466 * using previously allocated descriptors.
2467 */
mpi_init_descriptors(struct airo_info * ai)2468 static int mpi_init_descriptors (struct airo_info *ai)
2469 {
2470 Cmd cmd;
2471 Resp rsp;
2472 int i;
2473 int rc = SUCCESS;
2474
2475 /* Alloc card RX descriptors */
2476 netif_stop_queue(ai->dev);
2477
2478 memset(&rsp, 0, sizeof(rsp));
2479 memset(&cmd, 0, sizeof(cmd));
2480
2481 cmd.cmd = CMD_ALLOCATEAUX;
2482 cmd.parm0 = FID_RX;
2483 cmd.parm1 = (ai->rxfids[0].card_ram_off - ai->pciaux);
2484 cmd.parm2 = MPI_MAX_FIDS;
2485 rc = issuecommand(ai, &cmd, &rsp);
2486 if (rc != SUCCESS) {
2487 airo_print_err(ai->dev->name, "Couldn't allocate RX FID");
2488 return rc;
2489 }
2490
2491 for (i = 0; i<MPI_MAX_FIDS; i++) {
2492 memcpy_toio(ai->rxfids[i].card_ram_off,
2493 &ai->rxfids[i].rx_desc, sizeof(RxFid));
2494 }
2495
2496 /* Alloc card TX descriptors */
2497
2498 memset(&rsp, 0, sizeof(rsp));
2499 memset(&cmd, 0, sizeof(cmd));
2500
2501 cmd.cmd = CMD_ALLOCATEAUX;
2502 cmd.parm0 = FID_TX;
2503 cmd.parm1 = (ai->txfids[0].card_ram_off - ai->pciaux);
2504 cmd.parm2 = MPI_MAX_FIDS;
2505
2506 for (i = 0; i<MPI_MAX_FIDS; i++) {
2507 ai->txfids[i].tx_desc.valid = 1;
2508 memcpy_toio(ai->txfids[i].card_ram_off,
2509 &ai->txfids[i].tx_desc, sizeof(TxFid));
2510 }
2511 ai->txfids[i-1].tx_desc.eoc = 1; /* Last descriptor has EOC set */
2512
2513 rc = issuecommand(ai, &cmd, &rsp);
2514 if (rc != SUCCESS) {
2515 airo_print_err(ai->dev->name, "Couldn't allocate TX FID");
2516 return rc;
2517 }
2518
2519 /* Alloc card Rid descriptor */
2520 memset(&rsp, 0, sizeof(rsp));
2521 memset(&cmd, 0, sizeof(cmd));
2522
2523 cmd.cmd = CMD_ALLOCATEAUX;
2524 cmd.parm0 = RID_RW;
2525 cmd.parm1 = (ai->config_desc.card_ram_off - ai->pciaux);
2526 cmd.parm2 = 1; /* Magic number... */
2527 rc = issuecommand(ai, &cmd, &rsp);
2528 if (rc != SUCCESS) {
2529 airo_print_err(ai->dev->name, "Couldn't allocate RID");
2530 return rc;
2531 }
2532
2533 memcpy_toio(ai->config_desc.card_ram_off,
2534 &ai->config_desc.rid_desc, sizeof(Rid));
2535
2536 return rc;
2537 }
2538
2539 /*
2540 * We are setting up three things here:
2541 * 1) Map AUX memory for descriptors: Rid, TxFid, or RxFid.
2542 * 2) Map PCI memory for issuing commands.
2543 * 3) Allocate memory (shared) to send and receive ethernet frames.
2544 */
mpi_map_card(struct airo_info * ai,struct pci_dev * pci)2545 static int mpi_map_card(struct airo_info *ai, struct pci_dev *pci)
2546 {
2547 unsigned long mem_start, mem_len, aux_start, aux_len;
2548 int rc = -1;
2549 int i;
2550 dma_addr_t busaddroff;
2551 unsigned char *vpackoff;
2552 unsigned char __iomem *pciaddroff;
2553
2554 mem_start = pci_resource_start(pci, 1);
2555 mem_len = pci_resource_len(pci, 1);
2556 aux_start = pci_resource_start(pci, 2);
2557 aux_len = AUXMEMSIZE;
2558
2559 if (!request_mem_region(mem_start, mem_len, DRV_NAME)) {
2560 airo_print_err("", "Couldn't get region %x[%x]",
2561 (int)mem_start, (int)mem_len);
2562 goto out;
2563 }
2564 if (!request_mem_region(aux_start, aux_len, DRV_NAME)) {
2565 airo_print_err("", "Couldn't get region %x[%x]",
2566 (int)aux_start, (int)aux_len);
2567 goto free_region1;
2568 }
2569
2570 ai->pcimem = ioremap(mem_start, mem_len);
2571 if (!ai->pcimem) {
2572 airo_print_err("", "Couldn't map region %x[%x]",
2573 (int)mem_start, (int)mem_len);
2574 goto free_region2;
2575 }
2576 ai->pciaux = ioremap(aux_start, aux_len);
2577 if (!ai->pciaux) {
2578 airo_print_err("", "Couldn't map region %x[%x]",
2579 (int)aux_start, (int)aux_len);
2580 goto free_memmap;
2581 }
2582
2583 /* Reserve PKTSIZE for each fid and 2K for the Rids */
2584 ai->shared = dma_alloc_coherent(&pci->dev, PCI_SHARED_LEN,
2585 &ai->shared_dma, GFP_KERNEL);
2586 if (!ai->shared) {
2587 airo_print_err("", "Couldn't alloc_coherent %d",
2588 PCI_SHARED_LEN);
2589 goto free_auxmap;
2590 }
2591
2592 /*
2593 * Setup descriptor RX, TX, CONFIG
2594 */
2595 busaddroff = ai->shared_dma;
2596 pciaddroff = ai->pciaux + AUX_OFFSET;
2597 vpackoff = ai->shared;
2598
2599 /* RX descriptor setup */
2600 for (i = 0; i < MPI_MAX_FIDS; i++) {
2601 ai->rxfids[i].pending = 0;
2602 ai->rxfids[i].card_ram_off = pciaddroff;
2603 ai->rxfids[i].virtual_host_addr = vpackoff;
2604 ai->rxfids[i].rx_desc.host_addr = busaddroff;
2605 ai->rxfids[i].rx_desc.valid = 1;
2606 ai->rxfids[i].rx_desc.len = PKTSIZE;
2607 ai->rxfids[i].rx_desc.rdy = 0;
2608
2609 pciaddroff += sizeof(RxFid);
2610 busaddroff += PKTSIZE;
2611 vpackoff += PKTSIZE;
2612 }
2613
2614 /* TX descriptor setup */
2615 for (i = 0; i < MPI_MAX_FIDS; i++) {
2616 ai->txfids[i].card_ram_off = pciaddroff;
2617 ai->txfids[i].virtual_host_addr = vpackoff;
2618 ai->txfids[i].tx_desc.valid = 1;
2619 ai->txfids[i].tx_desc.host_addr = busaddroff;
2620 memcpy(ai->txfids[i].virtual_host_addr,
2621 &wifictlhdr8023, sizeof(wifictlhdr8023));
2622
2623 pciaddroff += sizeof(TxFid);
2624 busaddroff += PKTSIZE;
2625 vpackoff += PKTSIZE;
2626 }
2627 ai->txfids[i-1].tx_desc.eoc = 1; /* Last descriptor has EOC set */
2628
2629 /* Rid descriptor setup */
2630 ai->config_desc.card_ram_off = pciaddroff;
2631 ai->config_desc.virtual_host_addr = vpackoff;
2632 ai->config_desc.rid_desc.host_addr = busaddroff;
2633 ai->ridbus = busaddroff;
2634 ai->config_desc.rid_desc.rid = 0;
2635 ai->config_desc.rid_desc.len = RIDSIZE;
2636 ai->config_desc.rid_desc.valid = 1;
2637 pciaddroff += sizeof(Rid);
2638 busaddroff += RIDSIZE;
2639 vpackoff += RIDSIZE;
2640
2641 /* Tell card about descriptors */
2642 if (mpi_init_descriptors (ai) != SUCCESS)
2643 goto free_shared;
2644
2645 return 0;
2646 free_shared:
2647 dma_free_coherent(&pci->dev, PCI_SHARED_LEN, ai->shared,
2648 ai->shared_dma);
2649 free_auxmap:
2650 iounmap(ai->pciaux);
2651 free_memmap:
2652 iounmap(ai->pcimem);
2653 free_region2:
2654 release_mem_region(aux_start, aux_len);
2655 free_region1:
2656 release_mem_region(mem_start, mem_len);
2657 out:
2658 return rc;
2659 }
2660
2661 static const struct header_ops airo_header_ops = {
2662 .parse = wll_header_parse,
2663 };
2664
2665 static const struct net_device_ops airo11_netdev_ops = {
2666 .ndo_open = airo_open,
2667 .ndo_stop = airo_close,
2668 .ndo_start_xmit = airo_start_xmit11,
2669 .ndo_get_stats = airo_get_stats,
2670 .ndo_set_mac_address = airo_set_mac_address,
2671 .ndo_do_ioctl = airo_ioctl,
2672 };
2673
wifi_setup(struct net_device * dev)2674 static void wifi_setup(struct net_device *dev)
2675 {
2676 dev->netdev_ops = &airo11_netdev_ops;
2677 dev->header_ops = &airo_header_ops;
2678 dev->wireless_handlers = &airo_handler_def;
2679
2680 dev->type = ARPHRD_IEEE80211;
2681 dev->hard_header_len = ETH_HLEN;
2682 dev->mtu = AIRO_DEF_MTU;
2683 dev->min_mtu = 68;
2684 dev->max_mtu = MIC_MSGLEN_MAX;
2685 dev->addr_len = ETH_ALEN;
2686 dev->tx_queue_len = 100;
2687
2688 eth_broadcast_addr(dev->broadcast);
2689
2690 dev->flags = IFF_BROADCAST|IFF_MULTICAST;
2691 }
2692
init_wifidev(struct airo_info * ai,struct net_device * ethdev)2693 static struct net_device *init_wifidev(struct airo_info *ai,
2694 struct net_device *ethdev)
2695 {
2696 int err;
2697 struct net_device *dev = alloc_netdev(0, "wifi%d", NET_NAME_UNKNOWN,
2698 wifi_setup);
2699 if (!dev)
2700 return NULL;
2701 dev->ml_priv = ethdev->ml_priv;
2702 dev->irq = ethdev->irq;
2703 dev->base_addr = ethdev->base_addr;
2704 dev->wireless_data = ethdev->wireless_data;
2705 SET_NETDEV_DEV(dev, ethdev->dev.parent);
2706 eth_hw_addr_inherit(dev, ethdev);
2707 err = register_netdev(dev);
2708 if (err<0) {
2709 free_netdev(dev);
2710 return NULL;
2711 }
2712 return dev;
2713 }
2714
reset_card(struct net_device * dev,int lock)2715 static int reset_card(struct net_device *dev, int lock)
2716 {
2717 struct airo_info *ai = dev->ml_priv;
2718
2719 if (lock && down_interruptible(&ai->sem))
2720 return -1;
2721 waitbusy (ai);
2722 OUT4500(ai, COMMAND, CMD_SOFTRESET);
2723 msleep(200);
2724 waitbusy (ai);
2725 msleep(200);
2726 if (lock)
2727 up(&ai->sem);
2728 return 0;
2729 }
2730
2731 #define AIRO_MAX_NETWORK_COUNT 64
airo_networks_allocate(struct airo_info * ai)2732 static int airo_networks_allocate(struct airo_info *ai)
2733 {
2734 if (ai->networks)
2735 return 0;
2736
2737 ai->networks = kcalloc(AIRO_MAX_NETWORK_COUNT, sizeof(BSSListElement),
2738 GFP_KERNEL);
2739 if (!ai->networks) {
2740 airo_print_warn("", "Out of memory allocating beacons");
2741 return -ENOMEM;
2742 }
2743
2744 return 0;
2745 }
2746
airo_networks_free(struct airo_info * ai)2747 static void airo_networks_free(struct airo_info *ai)
2748 {
2749 kfree(ai->networks);
2750 ai->networks = NULL;
2751 }
2752
airo_networks_initialize(struct airo_info * ai)2753 static void airo_networks_initialize(struct airo_info *ai)
2754 {
2755 int i;
2756
2757 INIT_LIST_HEAD(&ai->network_free_list);
2758 INIT_LIST_HEAD(&ai->network_list);
2759 for (i = 0; i < AIRO_MAX_NETWORK_COUNT; i++)
2760 list_add_tail(&ai->networks[i].list,
2761 &ai->network_free_list);
2762 }
2763
2764 static const struct net_device_ops airo_netdev_ops = {
2765 .ndo_open = airo_open,
2766 .ndo_stop = airo_close,
2767 .ndo_start_xmit = airo_start_xmit,
2768 .ndo_get_stats = airo_get_stats,
2769 .ndo_set_rx_mode = airo_set_multicast_list,
2770 .ndo_set_mac_address = airo_set_mac_address,
2771 .ndo_do_ioctl = airo_ioctl,
2772 .ndo_validate_addr = eth_validate_addr,
2773 };
2774
2775 static const struct net_device_ops mpi_netdev_ops = {
2776 .ndo_open = airo_open,
2777 .ndo_stop = airo_close,
2778 .ndo_start_xmit = mpi_start_xmit,
2779 .ndo_get_stats = airo_get_stats,
2780 .ndo_set_rx_mode = airo_set_multicast_list,
2781 .ndo_set_mac_address = airo_set_mac_address,
2782 .ndo_do_ioctl = airo_ioctl,
2783 .ndo_validate_addr = eth_validate_addr,
2784 };
2785
2786
_init_airo_card(unsigned short irq,int port,int is_pcmcia,struct pci_dev * pci,struct device * dmdev)2787 static struct net_device *_init_airo_card(unsigned short irq, int port,
2788 int is_pcmcia, struct pci_dev *pci,
2789 struct device *dmdev)
2790 {
2791 struct net_device *dev;
2792 struct airo_info *ai;
2793 int i, rc;
2794 CapabilityRid cap_rid;
2795
2796 /* Create the network device object. */
2797 dev = alloc_netdev(sizeof(*ai), "", NET_NAME_UNKNOWN, ether_setup);
2798 if (!dev) {
2799 airo_print_err("", "Couldn't alloc_etherdev");
2800 return NULL;
2801 }
2802
2803 ai = dev->ml_priv = netdev_priv(dev);
2804 ai->wifidev = NULL;
2805 ai->flags = 1 << FLAG_RADIO_DOWN;
2806 ai->jobs = 0;
2807 ai->dev = dev;
2808 if (pci && (pci->device == 0x5000 || pci->device == 0xa504)) {
2809 airo_print_dbg("", "Found an MPI350 card");
2810 set_bit(FLAG_MPI, &ai->flags);
2811 }
2812 spin_lock_init(&ai->aux_lock);
2813 sema_init(&ai->sem, 1);
2814 ai->config.len = 0;
2815 ai->pci = pci;
2816 init_waitqueue_head (&ai->thr_wait);
2817 ai->tfm = NULL;
2818 add_airo_dev(ai);
2819 ai->APList.len = cpu_to_le16(sizeof(struct APListRid));
2820
2821 if (airo_networks_allocate (ai))
2822 goto err_out_free;
2823 airo_networks_initialize (ai);
2824
2825 skb_queue_head_init (&ai->txq);
2826
2827 /* The Airo-specific entries in the device structure. */
2828 if (test_bit(FLAG_MPI,&ai->flags))
2829 dev->netdev_ops = &mpi_netdev_ops;
2830 else
2831 dev->netdev_ops = &airo_netdev_ops;
2832 dev->wireless_handlers = &airo_handler_def;
2833 ai->wireless_data.spy_data = &ai->spy_data;
2834 dev->wireless_data = &ai->wireless_data;
2835 dev->irq = irq;
2836 dev->base_addr = port;
2837 dev->priv_flags &= ~IFF_TX_SKB_SHARING;
2838 dev->max_mtu = MIC_MSGLEN_MAX;
2839
2840 SET_NETDEV_DEV(dev, dmdev);
2841
2842 reset_card (dev, 1);
2843 msleep(400);
2844
2845 if (!is_pcmcia) {
2846 if (!request_region(dev->base_addr, 64, DRV_NAME)) {
2847 rc = -EBUSY;
2848 airo_print_err(dev->name, "Couldn't request region");
2849 goto err_out_nets;
2850 }
2851 }
2852
2853 if (test_bit(FLAG_MPI,&ai->flags)) {
2854 if (mpi_map_card(ai, pci)) {
2855 airo_print_err("", "Could not map memory");
2856 goto err_out_res;
2857 }
2858 }
2859
2860 if (probe) {
2861 if (setup_card(ai, dev->dev_addr, 1) != SUCCESS) {
2862 airo_print_err(dev->name, "MAC could not be enabled");
2863 rc = -EIO;
2864 goto err_out_map;
2865 }
2866 } else if (!test_bit(FLAG_MPI,&ai->flags)) {
2867 ai->bap_read = fast_bap_read;
2868 set_bit(FLAG_FLASHING, &ai->flags);
2869 }
2870
2871 strcpy(dev->name, "eth%d");
2872 rc = register_netdev(dev);
2873 if (rc) {
2874 airo_print_err(dev->name, "Couldn't register_netdev");
2875 goto err_out_map;
2876 }
2877 ai->wifidev = init_wifidev(ai, dev);
2878 if (!ai->wifidev)
2879 goto err_out_reg;
2880
2881 rc = readCapabilityRid(ai, &cap_rid, 1);
2882 if (rc != SUCCESS) {
2883 rc = -EIO;
2884 goto err_out_wifi;
2885 }
2886 /* WEP capability discovery */
2887 ai->wep_capable = (cap_rid.softCap & cpu_to_le16(0x02)) ? 1 : 0;
2888 ai->max_wep_idx = (cap_rid.softCap & cpu_to_le16(0x80)) ? 3 : 0;
2889
2890 airo_print_info(dev->name, "Firmware version %x.%x.%02d",
2891 ((le16_to_cpu(cap_rid.softVer) >> 8) & 0xF),
2892 (le16_to_cpu(cap_rid.softVer) & 0xFF),
2893 le16_to_cpu(cap_rid.softSubVer));
2894
2895 /* Test for WPA support */
2896 /* Only firmware versions 5.30.17 or better can do WPA */
2897 if (le16_to_cpu(cap_rid.softVer) > 0x530
2898 || (le16_to_cpu(cap_rid.softVer) == 0x530
2899 && le16_to_cpu(cap_rid.softSubVer) >= 17)) {
2900 airo_print_info(ai->dev->name, "WPA supported.");
2901
2902 set_bit(FLAG_WPA_CAPABLE, &ai->flags);
2903 ai->bssListFirst = RID_WPA_BSSLISTFIRST;
2904 ai->bssListNext = RID_WPA_BSSLISTNEXT;
2905 ai->bssListRidLen = sizeof(BSSListRid);
2906 } else {
2907 airo_print_info(ai->dev->name, "WPA unsupported with firmware "
2908 "versions older than 5.30.17.");
2909
2910 ai->bssListFirst = RID_BSSLISTFIRST;
2911 ai->bssListNext = RID_BSSLISTNEXT;
2912 ai->bssListRidLen = sizeof(BSSListRid) - sizeof(BSSListRidExtra);
2913 }
2914
2915 set_bit(FLAG_REGISTERED,&ai->flags);
2916 airo_print_info(dev->name, "MAC enabled %pM", dev->dev_addr);
2917
2918 /* Allocate the transmit buffers */
2919 if (probe && !test_bit(FLAG_MPI,&ai->flags))
2920 for (i = 0; i < MAX_FIDS; i++)
2921 ai->fids[i] = transmit_allocate(ai, AIRO_DEF_MTU, i>=MAX_FIDS/2);
2922
2923 if (setup_proc_entry(dev, dev->ml_priv) < 0)
2924 goto err_out_wifi;
2925
2926 return dev;
2927
2928 err_out_wifi:
2929 unregister_netdev(ai->wifidev);
2930 free_netdev(ai->wifidev);
2931 err_out_reg:
2932 unregister_netdev(dev);
2933 err_out_map:
2934 if (test_bit(FLAG_MPI,&ai->flags) && pci) {
2935 dma_free_coherent(&pci->dev, PCI_SHARED_LEN, ai->shared,
2936 ai->shared_dma);
2937 iounmap(ai->pciaux);
2938 iounmap(ai->pcimem);
2939 mpi_unmap_card(ai->pci);
2940 }
2941 err_out_res:
2942 if (!is_pcmcia)
2943 release_region(dev->base_addr, 64);
2944 err_out_nets:
2945 airo_networks_free(ai);
2946 err_out_free:
2947 del_airo_dev(ai);
2948 free_netdev(dev);
2949 return NULL;
2950 }
2951
init_airo_card(unsigned short irq,int port,int is_pcmcia,struct device * dmdev)2952 struct net_device *init_airo_card(unsigned short irq, int port, int is_pcmcia,
2953 struct device *dmdev)
2954 {
2955 return _init_airo_card (irq, port, is_pcmcia, NULL, dmdev);
2956 }
2957
2958 EXPORT_SYMBOL(init_airo_card);
2959
waitbusy(struct airo_info * ai)2960 static int waitbusy (struct airo_info *ai)
2961 {
2962 int delay = 0;
2963 while ((IN4500(ai, COMMAND) & COMMAND_BUSY) && (delay < 10000)) {
2964 udelay (10);
2965 if ((++delay % 20) == 0)
2966 OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
2967 }
2968 return delay < 10000;
2969 }
2970
reset_airo_card(struct net_device * dev)2971 int reset_airo_card(struct net_device *dev)
2972 {
2973 int i;
2974 struct airo_info *ai = dev->ml_priv;
2975
2976 if (reset_card (dev, 1))
2977 return -1;
2978
2979 if (setup_card(ai, dev->dev_addr, 1) != SUCCESS) {
2980 airo_print_err(dev->name, "MAC could not be enabled");
2981 return -1;
2982 }
2983 airo_print_info(dev->name, "MAC enabled %pM", dev->dev_addr);
2984 /* Allocate the transmit buffers if needed */
2985 if (!test_bit(FLAG_MPI,&ai->flags))
2986 for (i = 0; i < MAX_FIDS; i++)
2987 ai->fids[i] = transmit_allocate (ai, AIRO_DEF_MTU, i>=MAX_FIDS/2);
2988
2989 enable_interrupts(ai);
2990 netif_wake_queue(dev);
2991 return 0;
2992 }
2993
2994 EXPORT_SYMBOL(reset_airo_card);
2995
airo_send_event(struct net_device * dev)2996 static void airo_send_event(struct net_device *dev)
2997 {
2998 struct airo_info *ai = dev->ml_priv;
2999 union iwreq_data wrqu;
3000 StatusRid status_rid;
3001
3002 clear_bit(JOB_EVENT, &ai->jobs);
3003 PC4500_readrid(ai, RID_STATUS, &status_rid, sizeof(status_rid), 0);
3004 up(&ai->sem);
3005 wrqu.data.length = 0;
3006 wrqu.data.flags = 0;
3007 memcpy(wrqu.ap_addr.sa_data, status_rid.bssid[0], ETH_ALEN);
3008 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3009
3010 /* Send event to user space */
3011 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
3012 }
3013
airo_process_scan_results(struct airo_info * ai)3014 static void airo_process_scan_results (struct airo_info *ai)
3015 {
3016 union iwreq_data wrqu;
3017 BSSListRid bss;
3018 int rc;
3019 BSSListElement * loop_net;
3020 BSSListElement * tmp_net;
3021
3022 /* Blow away current list of scan results */
3023 list_for_each_entry_safe (loop_net, tmp_net, &ai->network_list, list) {
3024 list_move_tail (&loop_net->list, &ai->network_free_list);
3025 /* Don't blow away ->list, just BSS data */
3026 memset (loop_net, 0, sizeof (loop_net->bss));
3027 }
3028
3029 /* Try to read the first entry of the scan result */
3030 rc = PC4500_readrid(ai, ai->bssListFirst, &bss, ai->bssListRidLen, 0);
3031 if ((rc) || (bss.index == cpu_to_le16(0xffff))) {
3032 /* No scan results */
3033 goto out;
3034 }
3035
3036 /* Read and parse all entries */
3037 tmp_net = NULL;
3038 while ((!rc) && (bss.index != cpu_to_le16(0xffff))) {
3039 /* Grab a network off the free list */
3040 if (!list_empty(&ai->network_free_list)) {
3041 tmp_net = list_entry(ai->network_free_list.next,
3042 BSSListElement, list);
3043 list_del(ai->network_free_list.next);
3044 }
3045
3046 if (tmp_net != NULL) {
3047 memcpy(tmp_net, &bss, sizeof(tmp_net->bss));
3048 list_add_tail(&tmp_net->list, &ai->network_list);
3049 tmp_net = NULL;
3050 }
3051
3052 /* Read next entry */
3053 rc = PC4500_readrid(ai, ai->bssListNext,
3054 &bss, ai->bssListRidLen, 0);
3055 }
3056
3057 out:
3058 /* write APList back (we cleared it in airo_set_scan) */
3059 disable_MAC(ai, 2);
3060 writeAPListRid(ai, &ai->APList, 0);
3061 enable_MAC(ai, 0);
3062
3063 ai->scan_timeout = 0;
3064 clear_bit(JOB_SCAN_RESULTS, &ai->jobs);
3065 up(&ai->sem);
3066
3067 /* Send an empty event to user space.
3068 * We don't send the received data on
3069 * the event because it would require
3070 * us to do complex transcoding, and
3071 * we want to minimise the work done in
3072 * the irq handler. Use a request to
3073 * extract the data - Jean II */
3074 wrqu.data.length = 0;
3075 wrqu.data.flags = 0;
3076 wireless_send_event(ai->dev, SIOCGIWSCAN, &wrqu, NULL);
3077 }
3078
airo_thread(void * data)3079 static int airo_thread(void *data)
3080 {
3081 struct net_device *dev = data;
3082 struct airo_info *ai = dev->ml_priv;
3083 int locked;
3084
3085 set_freezable();
3086 while (1) {
3087 /* make swsusp happy with our thread */
3088 try_to_freeze();
3089
3090 if (test_bit(JOB_DIE, &ai->jobs))
3091 break;
3092
3093 if (ai->jobs) {
3094 locked = down_interruptible(&ai->sem);
3095 } else {
3096 wait_queue_entry_t wait;
3097
3098 init_waitqueue_entry(&wait, current);
3099 add_wait_queue(&ai->thr_wait, &wait);
3100 for (;;) {
3101 set_current_state(TASK_INTERRUPTIBLE);
3102 if (ai->jobs)
3103 break;
3104 if (ai->expires || ai->scan_timeout) {
3105 if (ai->scan_timeout &&
3106 time_after_eq(jiffies, ai->scan_timeout)) {
3107 set_bit(JOB_SCAN_RESULTS, &ai->jobs);
3108 break;
3109 } else if (ai->expires &&
3110 time_after_eq(jiffies, ai->expires)) {
3111 set_bit(JOB_AUTOWEP, &ai->jobs);
3112 break;
3113 }
3114 if (!kthread_should_stop() &&
3115 !freezing(current)) {
3116 unsigned long wake_at;
3117 if (!ai->expires || !ai->scan_timeout) {
3118 wake_at = max(ai->expires,
3119 ai->scan_timeout);
3120 } else {
3121 wake_at = min(ai->expires,
3122 ai->scan_timeout);
3123 }
3124 schedule_timeout(wake_at - jiffies);
3125 continue;
3126 }
3127 } else if (!kthread_should_stop() &&
3128 !freezing(current)) {
3129 schedule();
3130 continue;
3131 }
3132 break;
3133 }
3134 __set_current_state(TASK_RUNNING);
3135 remove_wait_queue(&ai->thr_wait, &wait);
3136 locked = 1;
3137 }
3138
3139 if (locked)
3140 continue;
3141
3142 if (test_bit(JOB_DIE, &ai->jobs)) {
3143 up(&ai->sem);
3144 break;
3145 }
3146
3147 if (ai->power.event || test_bit(FLAG_FLASHING, &ai->flags)) {
3148 up(&ai->sem);
3149 continue;
3150 }
3151
3152 if (test_bit(JOB_XMIT, &ai->jobs))
3153 airo_end_xmit(dev);
3154 else if (test_bit(JOB_XMIT11, &ai->jobs))
3155 airo_end_xmit11(dev);
3156 else if (test_bit(JOB_STATS, &ai->jobs))
3157 airo_read_stats(dev);
3158 else if (test_bit(JOB_WSTATS, &ai->jobs))
3159 airo_read_wireless_stats(ai);
3160 else if (test_bit(JOB_PROMISC, &ai->jobs))
3161 airo_set_promisc(ai);
3162 else if (test_bit(JOB_MIC, &ai->jobs))
3163 micinit(ai);
3164 else if (test_bit(JOB_EVENT, &ai->jobs))
3165 airo_send_event(dev);
3166 else if (test_bit(JOB_AUTOWEP, &ai->jobs))
3167 timer_func(dev);
3168 else if (test_bit(JOB_SCAN_RESULTS, &ai->jobs))
3169 airo_process_scan_results(ai);
3170 else /* Shouldn't get here, but we make sure to unlock */
3171 up(&ai->sem);
3172 }
3173
3174 return 0;
3175 }
3176
header_len(__le16 ctl)3177 static int header_len(__le16 ctl)
3178 {
3179 u16 fc = le16_to_cpu(ctl);
3180 switch (fc & 0xc) {
3181 case 4:
3182 if ((fc & 0xe0) == 0xc0)
3183 return 10; /* one-address control packet */
3184 return 16; /* two-address control packet */
3185 case 8:
3186 if ((fc & 0x300) == 0x300)
3187 return 30; /* WDS packet */
3188 }
3189 return 24;
3190 }
3191
airo_handle_cisco_mic(struct airo_info * ai)3192 static void airo_handle_cisco_mic(struct airo_info *ai)
3193 {
3194 if (test_bit(FLAG_MIC_CAPABLE, &ai->flags)) {
3195 set_bit(JOB_MIC, &ai->jobs);
3196 wake_up_interruptible(&ai->thr_wait);
3197 }
3198 }
3199
3200 /* Airo Status codes */
3201 #define STAT_NOBEACON 0x8000 /* Loss of sync - missed beacons */
3202 #define STAT_MAXRETRIES 0x8001 /* Loss of sync - max retries */
3203 #define STAT_MAXARL 0x8002 /* Loss of sync - average retry level exceeded*/
3204 #define STAT_FORCELOSS 0x8003 /* Loss of sync - host request */
3205 #define STAT_TSFSYNC 0x8004 /* Loss of sync - TSF synchronization */
3206 #define STAT_DEAUTH 0x8100 /* low byte is 802.11 reason code */
3207 #define STAT_DISASSOC 0x8200 /* low byte is 802.11 reason code */
3208 #define STAT_ASSOC_FAIL 0x8400 /* low byte is 802.11 reason code */
3209 #define STAT_AUTH_FAIL 0x0300 /* low byte is 802.11 reason code */
3210 #define STAT_ASSOC 0x0400 /* Associated */
3211 #define STAT_REASSOC 0x0600 /* Reassociated? Only on firmware >= 5.30.17 */
3212
airo_print_status(const char * devname,u16 status)3213 static void airo_print_status(const char *devname, u16 status)
3214 {
3215 u8 reason = status & 0xFF;
3216
3217 switch (status & 0xFF00) {
3218 case STAT_NOBEACON:
3219 switch (status) {
3220 case STAT_NOBEACON:
3221 airo_print_dbg(devname, "link lost (missed beacons)");
3222 break;
3223 case STAT_MAXRETRIES:
3224 case STAT_MAXARL:
3225 airo_print_dbg(devname, "link lost (max retries)");
3226 break;
3227 case STAT_FORCELOSS:
3228 airo_print_dbg(devname, "link lost (local choice)");
3229 break;
3230 case STAT_TSFSYNC:
3231 airo_print_dbg(devname, "link lost (TSF sync lost)");
3232 break;
3233 default:
3234 airo_print_dbg(devname, "unknown status %x\n", status);
3235 break;
3236 }
3237 break;
3238 case STAT_DEAUTH:
3239 airo_print_dbg(devname, "deauthenticated (reason: %d)", reason);
3240 break;
3241 case STAT_DISASSOC:
3242 airo_print_dbg(devname, "disassociated (reason: %d)", reason);
3243 break;
3244 case STAT_ASSOC_FAIL:
3245 airo_print_dbg(devname, "association failed (reason: %d)",
3246 reason);
3247 break;
3248 case STAT_AUTH_FAIL:
3249 airo_print_dbg(devname, "authentication failed (reason: %d)",
3250 reason);
3251 break;
3252 case STAT_ASSOC:
3253 case STAT_REASSOC:
3254 break;
3255 default:
3256 airo_print_dbg(devname, "unknown status %x\n", status);
3257 break;
3258 }
3259 }
3260
airo_handle_link(struct airo_info * ai)3261 static void airo_handle_link(struct airo_info *ai)
3262 {
3263 union iwreq_data wrqu;
3264 int scan_forceloss = 0;
3265 u16 status;
3266
3267 /* Get new status and acknowledge the link change */
3268 status = le16_to_cpu(IN4500(ai, LINKSTAT));
3269 OUT4500(ai, EVACK, EV_LINK);
3270
3271 if ((status == STAT_FORCELOSS) && (ai->scan_timeout > 0))
3272 scan_forceloss = 1;
3273
3274 airo_print_status(ai->dev->name, status);
3275
3276 if ((status == STAT_ASSOC) || (status == STAT_REASSOC)) {
3277 if (auto_wep)
3278 ai->expires = 0;
3279 if (ai->list_bss_task)
3280 wake_up_process(ai->list_bss_task);
3281 set_bit(FLAG_UPDATE_UNI, &ai->flags);
3282 set_bit(FLAG_UPDATE_MULTI, &ai->flags);
3283
3284 if (down_trylock(&ai->sem) != 0) {
3285 set_bit(JOB_EVENT, &ai->jobs);
3286 wake_up_interruptible(&ai->thr_wait);
3287 } else
3288 airo_send_event(ai->dev);
3289 netif_carrier_on(ai->dev);
3290 } else if (!scan_forceloss) {
3291 if (auto_wep && !ai->expires) {
3292 ai->expires = RUN_AT(3*HZ);
3293 wake_up_interruptible(&ai->thr_wait);
3294 }
3295
3296 /* Send event to user space */
3297 eth_zero_addr(wrqu.ap_addr.sa_data);
3298 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3299 wireless_send_event(ai->dev, SIOCGIWAP, &wrqu, NULL);
3300 netif_carrier_off(ai->dev);
3301 } else {
3302 netif_carrier_off(ai->dev);
3303 }
3304 }
3305
airo_handle_rx(struct airo_info * ai)3306 static void airo_handle_rx(struct airo_info *ai)
3307 {
3308 struct sk_buff *skb = NULL;
3309 __le16 fc, v, *buffer, tmpbuf[4];
3310 u16 len, hdrlen = 0, gap, fid;
3311 struct rx_hdr hdr;
3312 int success = 0;
3313
3314 if (test_bit(FLAG_MPI, &ai->flags)) {
3315 if (test_bit(FLAG_802_11, &ai->flags))
3316 mpi_receive_802_11(ai);
3317 else
3318 mpi_receive_802_3(ai);
3319 OUT4500(ai, EVACK, EV_RX);
3320 return;
3321 }
3322
3323 fid = IN4500(ai, RXFID);
3324
3325 /* Get the packet length */
3326 if (test_bit(FLAG_802_11, &ai->flags)) {
3327 bap_setup (ai, fid, 4, BAP0);
3328 bap_read (ai, (__le16*)&hdr, sizeof(hdr), BAP0);
3329 /* Bad CRC. Ignore packet */
3330 if (le16_to_cpu(hdr.status) & 2)
3331 hdr.len = 0;
3332 if (ai->wifidev == NULL)
3333 hdr.len = 0;
3334 } else {
3335 bap_setup(ai, fid, 0x36, BAP0);
3336 bap_read(ai, &hdr.len, 2, BAP0);
3337 }
3338 len = le16_to_cpu(hdr.len);
3339
3340 if (len > AIRO_DEF_MTU) {
3341 airo_print_err(ai->dev->name, "Bad size %d", len);
3342 goto done;
3343 }
3344 if (len == 0)
3345 goto done;
3346
3347 if (test_bit(FLAG_802_11, &ai->flags)) {
3348 bap_read(ai, &fc, sizeof (fc), BAP0);
3349 hdrlen = header_len(fc);
3350 } else
3351 hdrlen = ETH_ALEN * 2;
3352
3353 skb = dev_alloc_skb(len + hdrlen + 2 + 2);
3354 if (!skb) {
3355 ai->dev->stats.rx_dropped++;
3356 goto done;
3357 }
3358
3359 skb_reserve(skb, 2); /* This way the IP header is aligned */
3360 buffer = skb_put(skb, len + hdrlen);
3361 if (test_bit(FLAG_802_11, &ai->flags)) {
3362 buffer[0] = fc;
3363 bap_read(ai, buffer + 1, hdrlen - 2, BAP0);
3364 if (hdrlen == 24)
3365 bap_read(ai, tmpbuf, 6, BAP0);
3366
3367 bap_read(ai, &v, sizeof(v), BAP0);
3368 gap = le16_to_cpu(v);
3369 if (gap) {
3370 if (gap <= 8) {
3371 bap_read(ai, tmpbuf, gap, BAP0);
3372 } else {
3373 airo_print_err(ai->dev->name, "gaplen too "
3374 "big. Problems will follow...");
3375 }
3376 }
3377 bap_read(ai, buffer + hdrlen/2, len, BAP0);
3378 } else {
3379 MICBuffer micbuf;
3380
3381 bap_read(ai, buffer, ETH_ALEN * 2, BAP0);
3382 if (ai->micstats.enabled) {
3383 bap_read(ai, (__le16 *) &micbuf, sizeof (micbuf), BAP0);
3384 if (ntohs(micbuf.typelen) > 0x05DC)
3385 bap_setup(ai, fid, 0x44, BAP0);
3386 else {
3387 if (len <= sizeof (micbuf)) {
3388 dev_kfree_skb_irq(skb);
3389 goto done;
3390 }
3391
3392 len -= sizeof(micbuf);
3393 skb_trim(skb, len + hdrlen);
3394 }
3395 }
3396
3397 bap_read(ai, buffer + ETH_ALEN, len, BAP0);
3398 if (decapsulate(ai, &micbuf, (etherHead*) buffer, len))
3399 dev_kfree_skb_irq (skb);
3400 else
3401 success = 1;
3402 }
3403
3404 #ifdef WIRELESS_SPY
3405 if (success && (ai->spy_data.spy_number > 0)) {
3406 char *sa;
3407 struct iw_quality wstats;
3408
3409 /* Prepare spy data : addr + qual */
3410 if (!test_bit(FLAG_802_11, &ai->flags)) {
3411 sa = (char *) buffer + 6;
3412 bap_setup(ai, fid, 8, BAP0);
3413 bap_read(ai, (__le16 *) hdr.rssi, 2, BAP0);
3414 } else
3415 sa = (char *) buffer + 10;
3416 wstats.qual = hdr.rssi[0];
3417 if (ai->rssi)
3418 wstats.level = 0x100 - ai->rssi[hdr.rssi[1]].rssidBm;
3419 else
3420 wstats.level = (hdr.rssi[1] + 321) / 2;
3421 wstats.noise = ai->wstats.qual.noise;
3422 wstats.updated = IW_QUAL_LEVEL_UPDATED
3423 | IW_QUAL_QUAL_UPDATED
3424 | IW_QUAL_DBM;
3425 /* Update spy records */
3426 wireless_spy_update(ai->dev, sa, &wstats);
3427 }
3428 #endif /* WIRELESS_SPY */
3429
3430 done:
3431 OUT4500(ai, EVACK, EV_RX);
3432
3433 if (success) {
3434 if (test_bit(FLAG_802_11, &ai->flags)) {
3435 skb_reset_mac_header(skb);
3436 skb->pkt_type = PACKET_OTHERHOST;
3437 skb->dev = ai->wifidev;
3438 skb->protocol = htons(ETH_P_802_2);
3439 } else
3440 skb->protocol = eth_type_trans(skb, ai->dev);
3441 skb->ip_summed = CHECKSUM_NONE;
3442
3443 netif_rx(skb);
3444 }
3445 }
3446
airo_handle_tx(struct airo_info * ai,u16 status)3447 static void airo_handle_tx(struct airo_info *ai, u16 status)
3448 {
3449 int i, index = -1;
3450 u16 fid;
3451
3452 if (test_bit(FLAG_MPI, &ai->flags)) {
3453 unsigned long flags;
3454
3455 if (status & EV_TXEXC)
3456 get_tx_error(ai, -1);
3457
3458 spin_lock_irqsave(&ai->aux_lock, flags);
3459 if (!skb_queue_empty(&ai->txq)) {
3460 spin_unlock_irqrestore(&ai->aux_lock, flags);
3461 mpi_send_packet(ai->dev);
3462 } else {
3463 clear_bit(FLAG_PENDING_XMIT, &ai->flags);
3464 spin_unlock_irqrestore(&ai->aux_lock, flags);
3465 netif_wake_queue(ai->dev);
3466 }
3467 OUT4500(ai, EVACK, status & (EV_TX | EV_TXCPY | EV_TXEXC));
3468 return;
3469 }
3470
3471 fid = IN4500(ai, TXCOMPLFID);
3472
3473 for (i = 0; i < MAX_FIDS; i++) {
3474 if ((ai->fids[i] & 0xffff) == fid)
3475 index = i;
3476 }
3477
3478 if (index != -1) {
3479 if (status & EV_TXEXC)
3480 get_tx_error(ai, index);
3481
3482 OUT4500(ai, EVACK, status & (EV_TX | EV_TXEXC));
3483
3484 /* Set up to be used again */
3485 ai->fids[index] &= 0xffff;
3486 if (index < MAX_FIDS / 2) {
3487 if (!test_bit(FLAG_PENDING_XMIT, &ai->flags))
3488 netif_wake_queue(ai->dev);
3489 } else {
3490 if (!test_bit(FLAG_PENDING_XMIT11, &ai->flags))
3491 netif_wake_queue(ai->wifidev);
3492 }
3493 } else {
3494 OUT4500(ai, EVACK, status & (EV_TX | EV_TXCPY | EV_TXEXC));
3495 airo_print_err(ai->dev->name, "Unallocated FID was used to xmit");
3496 }
3497 }
3498
airo_interrupt(int irq,void * dev_id)3499 static irqreturn_t airo_interrupt(int irq, void *dev_id)
3500 {
3501 struct net_device *dev = dev_id;
3502 u16 status, savedInterrupts = 0;
3503 struct airo_info *ai = dev->ml_priv;
3504 int handled = 0;
3505
3506 if (!netif_device_present(dev))
3507 return IRQ_NONE;
3508
3509 for (;;) {
3510 status = IN4500(ai, EVSTAT);
3511 if (!(status & STATUS_INTS) || (status == 0xffff))
3512 break;
3513
3514 handled = 1;
3515
3516 if (status & EV_AWAKE) {
3517 OUT4500(ai, EVACK, EV_AWAKE);
3518 OUT4500(ai, EVACK, EV_AWAKE);
3519 }
3520
3521 if (!savedInterrupts) {
3522 savedInterrupts = IN4500(ai, EVINTEN);
3523 OUT4500(ai, EVINTEN, 0);
3524 }
3525
3526 if (status & EV_MIC) {
3527 OUT4500(ai, EVACK, EV_MIC);
3528 airo_handle_cisco_mic(ai);
3529 }
3530
3531 if (status & EV_LINK) {
3532 /* Link status changed */
3533 airo_handle_link(ai);
3534 }
3535
3536 /* Check to see if there is something to receive */
3537 if (status & EV_RX)
3538 airo_handle_rx(ai);
3539
3540 /* Check to see if a packet has been transmitted */
3541 if (status & (EV_TX | EV_TXCPY | EV_TXEXC))
3542 airo_handle_tx(ai, status);
3543
3544 if (status & ~STATUS_INTS & ~IGNORE_INTS) {
3545 airo_print_warn(ai->dev->name, "Got weird status %x",
3546 status & ~STATUS_INTS & ~IGNORE_INTS);
3547 }
3548 }
3549
3550 if (savedInterrupts)
3551 OUT4500(ai, EVINTEN, savedInterrupts);
3552
3553 return IRQ_RETVAL(handled);
3554 }
3555
3556 /*
3557 * Routines to talk to the card
3558 */
3559
3560 /*
3561 * This was originally written for the 4500, hence the name
3562 * NOTE: If use with 8bit mode and SMP bad things will happen!
3563 * Why would some one do 8 bit IO in an SMP machine?!?
3564 */
OUT4500(struct airo_info * ai,u16 reg,u16 val)3565 static void OUT4500(struct airo_info *ai, u16 reg, u16 val)
3566 {
3567 if (test_bit(FLAG_MPI,&ai->flags))
3568 reg <<= 1;
3569 if (!do8bitIO)
3570 outw(val, ai->dev->base_addr + reg);
3571 else {
3572 outb(val & 0xff, ai->dev->base_addr + reg);
3573 outb(val >> 8, ai->dev->base_addr + reg + 1);
3574 }
3575 }
3576
IN4500(struct airo_info * ai,u16 reg)3577 static u16 IN4500(struct airo_info *ai, u16 reg)
3578 {
3579 unsigned short rc;
3580
3581 if (test_bit(FLAG_MPI,&ai->flags))
3582 reg <<= 1;
3583 if (!do8bitIO)
3584 rc = inw(ai->dev->base_addr + reg);
3585 else {
3586 rc = inb(ai->dev->base_addr + reg);
3587 rc += ((int)inb(ai->dev->base_addr + reg + 1)) << 8;
3588 }
3589 return rc;
3590 }
3591
enable_MAC(struct airo_info * ai,int lock)3592 static int enable_MAC(struct airo_info *ai, int lock)
3593 {
3594 int rc;
3595 Cmd cmd;
3596 Resp rsp;
3597
3598 /* FLAG_RADIO_OFF : Radio disabled via /proc or Wireless Extensions
3599 * FLAG_RADIO_DOWN : Radio disabled via "ifconfig ethX down"
3600 * Note : we could try to use !netif_running(dev) in enable_MAC()
3601 * instead of this flag, but I don't trust it *within* the
3602 * open/close functions, and testing both flags together is
3603 * "cheaper" - Jean II */
3604 if (ai->flags & FLAG_RADIO_MASK) return SUCCESS;
3605
3606 if (lock && down_interruptible(&ai->sem))
3607 return -ERESTARTSYS;
3608
3609 if (!test_bit(FLAG_ENABLED, &ai->flags)) {
3610 memset(&cmd, 0, sizeof(cmd));
3611 cmd.cmd = MAC_ENABLE;
3612 rc = issuecommand(ai, &cmd, &rsp);
3613 if (rc == SUCCESS)
3614 set_bit(FLAG_ENABLED, &ai->flags);
3615 } else
3616 rc = SUCCESS;
3617
3618 if (lock)
3619 up(&ai->sem);
3620
3621 if (rc)
3622 airo_print_err(ai->dev->name, "Cannot enable MAC");
3623 else if ((rsp.status & 0xFF00) != 0) {
3624 airo_print_err(ai->dev->name, "Bad MAC enable reason=%x, "
3625 "rid=%x, offset=%d", rsp.rsp0, rsp.rsp1, rsp.rsp2);
3626 rc = ERROR;
3627 }
3628 return rc;
3629 }
3630
disable_MAC(struct airo_info * ai,int lock)3631 static void disable_MAC(struct airo_info *ai, int lock)
3632 {
3633 Cmd cmd;
3634 Resp rsp;
3635
3636 if (lock == 1 && down_interruptible(&ai->sem))
3637 return;
3638
3639 if (test_bit(FLAG_ENABLED, &ai->flags)) {
3640 if (lock != 2) /* lock == 2 means don't disable carrier */
3641 netif_carrier_off(ai->dev);
3642 memset(&cmd, 0, sizeof(cmd));
3643 cmd.cmd = MAC_DISABLE; // disable in case already enabled
3644 issuecommand(ai, &cmd, &rsp);
3645 clear_bit(FLAG_ENABLED, &ai->flags);
3646 }
3647 if (lock == 1)
3648 up(&ai->sem);
3649 }
3650
enable_interrupts(struct airo_info * ai)3651 static void enable_interrupts(struct airo_info *ai)
3652 {
3653 /* Enable the interrupts */
3654 OUT4500(ai, EVINTEN, STATUS_INTS);
3655 }
3656
disable_interrupts(struct airo_info * ai)3657 static void disable_interrupts(struct airo_info *ai)
3658 {
3659 OUT4500(ai, EVINTEN, 0);
3660 }
3661
mpi_receive_802_3(struct airo_info * ai)3662 static void mpi_receive_802_3(struct airo_info *ai)
3663 {
3664 RxFid rxd;
3665 int len = 0;
3666 struct sk_buff *skb;
3667 char *buffer;
3668 int off = 0;
3669 MICBuffer micbuf;
3670
3671 memcpy_fromio(&rxd, ai->rxfids[0].card_ram_off, sizeof(rxd));
3672 /* Make sure we got something */
3673 if (rxd.rdy && rxd.valid == 0) {
3674 len = rxd.len + 12;
3675 if (len < 12 || len > 2048)
3676 goto badrx;
3677
3678 skb = dev_alloc_skb(len);
3679 if (!skb) {
3680 ai->dev->stats.rx_dropped++;
3681 goto badrx;
3682 }
3683 buffer = skb_put(skb, len);
3684 memcpy(buffer, ai->rxfids[0].virtual_host_addr, ETH_ALEN * 2);
3685 if (ai->micstats.enabled) {
3686 memcpy(&micbuf,
3687 ai->rxfids[0].virtual_host_addr + ETH_ALEN * 2,
3688 sizeof(micbuf));
3689 if (ntohs(micbuf.typelen) <= 0x05DC) {
3690 if (len <= sizeof(micbuf) + ETH_ALEN * 2)
3691 goto badmic;
3692
3693 off = sizeof(micbuf);
3694 skb_trim (skb, len - off);
3695 }
3696 }
3697 memcpy(buffer + ETH_ALEN * 2,
3698 ai->rxfids[0].virtual_host_addr + ETH_ALEN * 2 + off,
3699 len - ETH_ALEN * 2 - off);
3700 if (decapsulate (ai, &micbuf, (etherHead*)buffer, len - off - ETH_ALEN * 2)) {
3701 badmic:
3702 dev_kfree_skb_irq (skb);
3703 goto badrx;
3704 }
3705 #ifdef WIRELESS_SPY
3706 if (ai->spy_data.spy_number > 0) {
3707 char *sa;
3708 struct iw_quality wstats;
3709 /* Prepare spy data : addr + qual */
3710 sa = buffer + ETH_ALEN;
3711 wstats.qual = 0; /* XXX Where do I get that info from ??? */
3712 wstats.level = 0;
3713 wstats.updated = 0;
3714 /* Update spy records */
3715 wireless_spy_update(ai->dev, sa, &wstats);
3716 }
3717 #endif /* WIRELESS_SPY */
3718
3719 skb->ip_summed = CHECKSUM_NONE;
3720 skb->protocol = eth_type_trans(skb, ai->dev);
3721 netif_rx(skb);
3722 }
3723 badrx:
3724 if (rxd.valid == 0) {
3725 rxd.valid = 1;
3726 rxd.rdy = 0;
3727 rxd.len = PKTSIZE;
3728 memcpy_toio(ai->rxfids[0].card_ram_off, &rxd, sizeof(rxd));
3729 }
3730 }
3731
mpi_receive_802_11(struct airo_info * ai)3732 static void mpi_receive_802_11(struct airo_info *ai)
3733 {
3734 RxFid rxd;
3735 struct sk_buff *skb = NULL;
3736 u16 len, hdrlen = 0;
3737 __le16 fc;
3738 struct rx_hdr hdr;
3739 u16 gap;
3740 u16 *buffer;
3741 char *ptr = ai->rxfids[0].virtual_host_addr + 4;
3742
3743 memcpy_fromio(&rxd, ai->rxfids[0].card_ram_off, sizeof(rxd));
3744 memcpy ((char *)&hdr, ptr, sizeof(hdr));
3745 ptr += sizeof(hdr);
3746 /* Bad CRC. Ignore packet */
3747 if (le16_to_cpu(hdr.status) & 2)
3748 hdr.len = 0;
3749 if (ai->wifidev == NULL)
3750 hdr.len = 0;
3751 len = le16_to_cpu(hdr.len);
3752 if (len > AIRO_DEF_MTU) {
3753 airo_print_err(ai->dev->name, "Bad size %d", len);
3754 goto badrx;
3755 }
3756 if (len == 0)
3757 goto badrx;
3758
3759 fc = get_unaligned((__le16 *)ptr);
3760 hdrlen = header_len(fc);
3761
3762 skb = dev_alloc_skb(len + hdrlen + 2);
3763 if (!skb) {
3764 ai->dev->stats.rx_dropped++;
3765 goto badrx;
3766 }
3767 buffer = skb_put(skb, len + hdrlen);
3768 memcpy ((char *)buffer, ptr, hdrlen);
3769 ptr += hdrlen;
3770 if (hdrlen == 24)
3771 ptr += 6;
3772 gap = get_unaligned_le16(ptr);
3773 ptr += sizeof(__le16);
3774 if (gap) {
3775 if (gap <= 8)
3776 ptr += gap;
3777 else
3778 airo_print_err(ai->dev->name,
3779 "gaplen too big. Problems will follow...");
3780 }
3781 memcpy ((char *)buffer + hdrlen, ptr, len);
3782 ptr += len;
3783 #ifdef IW_WIRELESS_SPY /* defined in iw_handler.h */
3784 if (ai->spy_data.spy_number > 0) {
3785 char *sa;
3786 struct iw_quality wstats;
3787 /* Prepare spy data : addr + qual */
3788 sa = (char*)buffer + 10;
3789 wstats.qual = hdr.rssi[0];
3790 if (ai->rssi)
3791 wstats.level = 0x100 - ai->rssi[hdr.rssi[1]].rssidBm;
3792 else
3793 wstats.level = (hdr.rssi[1] + 321) / 2;
3794 wstats.noise = ai->wstats.qual.noise;
3795 wstats.updated = IW_QUAL_QUAL_UPDATED
3796 | IW_QUAL_LEVEL_UPDATED
3797 | IW_QUAL_DBM;
3798 /* Update spy records */
3799 wireless_spy_update(ai->dev, sa, &wstats);
3800 }
3801 #endif /* IW_WIRELESS_SPY */
3802 skb_reset_mac_header(skb);
3803 skb->pkt_type = PACKET_OTHERHOST;
3804 skb->dev = ai->wifidev;
3805 skb->protocol = htons(ETH_P_802_2);
3806 skb->ip_summed = CHECKSUM_NONE;
3807 netif_rx(skb);
3808
3809 badrx:
3810 if (rxd.valid == 0) {
3811 rxd.valid = 1;
3812 rxd.rdy = 0;
3813 rxd.len = PKTSIZE;
3814 memcpy_toio(ai->rxfids[0].card_ram_off, &rxd, sizeof(rxd));
3815 }
3816 }
3817
set_auth_type(struct airo_info * local,int auth_type)3818 static inline void set_auth_type(struct airo_info *local, int auth_type)
3819 {
3820 local->config.authType = auth_type;
3821 /* Cache the last auth type used (of AUTH_OPEN and AUTH_ENCRYPT).
3822 * Used by airo_set_auth()
3823 */
3824 if (auth_type == AUTH_OPEN || auth_type == AUTH_ENCRYPT)
3825 local->last_auth = auth_type;
3826 }
3827
setup_card(struct airo_info * ai,u8 * mac,int lock)3828 static u16 setup_card(struct airo_info *ai, u8 *mac, int lock)
3829 {
3830 Cmd cmd;
3831 Resp rsp;
3832 int status;
3833 SsidRid mySsid;
3834 __le16 lastindex;
3835 WepKeyRid wkr;
3836 int rc;
3837
3838 memset(&mySsid, 0, sizeof(mySsid));
3839 kfree (ai->flash);
3840 ai->flash = NULL;
3841
3842 /* The NOP is the first step in getting the card going */
3843 cmd.cmd = NOP;
3844 cmd.parm0 = cmd.parm1 = cmd.parm2 = 0;
3845 if (lock && down_interruptible(&ai->sem))
3846 return ERROR;
3847 if (issuecommand(ai, &cmd, &rsp) != SUCCESS) {
3848 if (lock)
3849 up(&ai->sem);
3850 return ERROR;
3851 }
3852 disable_MAC(ai, 0);
3853
3854 // Let's figure out if we need to use the AUX port
3855 if (!test_bit(FLAG_MPI,&ai->flags)) {
3856 cmd.cmd = CMD_ENABLEAUX;
3857 if (issuecommand(ai, &cmd, &rsp) != SUCCESS) {
3858 if (lock)
3859 up(&ai->sem);
3860 airo_print_err(ai->dev->name, "Error checking for AUX port");
3861 return ERROR;
3862 }
3863 if (!aux_bap || rsp.status & 0xff00) {
3864 ai->bap_read = fast_bap_read;
3865 airo_print_dbg(ai->dev->name, "Doing fast bap_reads");
3866 } else {
3867 ai->bap_read = aux_bap_read;
3868 airo_print_dbg(ai->dev->name, "Doing AUX bap_reads");
3869 }
3870 }
3871 if (lock)
3872 up(&ai->sem);
3873 if (ai->config.len == 0) {
3874 int i;
3875 tdsRssiRid rssi_rid;
3876 CapabilityRid cap_rid;
3877
3878 kfree(ai->SSID);
3879 ai->SSID = NULL;
3880 // general configuration (read/modify/write)
3881 status = readConfigRid(ai, lock);
3882 if (status != SUCCESS) return ERROR;
3883
3884 status = readCapabilityRid(ai, &cap_rid, lock);
3885 if (status != SUCCESS) return ERROR;
3886
3887 status = PC4500_readrid(ai, RID_RSSI,&rssi_rid, sizeof(rssi_rid), lock);
3888 if (status == SUCCESS) {
3889 if (ai->rssi || (ai->rssi = kmalloc(512, GFP_KERNEL)) != NULL)
3890 memcpy(ai->rssi, (u8*)&rssi_rid + 2, 512); /* Skip RID length member */
3891 }
3892 else {
3893 kfree(ai->rssi);
3894 ai->rssi = NULL;
3895 if (cap_rid.softCap & cpu_to_le16(8))
3896 ai->config.rmode |= RXMODE_NORMALIZED_RSSI;
3897 else
3898 airo_print_warn(ai->dev->name, "unknown received signal "
3899 "level scale");
3900 }
3901 ai->config.opmode = adhoc ? MODE_STA_IBSS : MODE_STA_ESS;
3902 set_auth_type(ai, AUTH_OPEN);
3903 ai->config.modulation = MOD_CCK;
3904
3905 if (le16_to_cpu(cap_rid.len) >= sizeof(cap_rid) &&
3906 (cap_rid.extSoftCap & cpu_to_le16(1)) &&
3907 micsetup(ai) == SUCCESS) {
3908 ai->config.opmode |= MODE_MIC;
3909 set_bit(FLAG_MIC_CAPABLE, &ai->flags);
3910 }
3911
3912 /* Save off the MAC */
3913 for (i = 0; i < ETH_ALEN; i++) {
3914 mac[i] = ai->config.macAddr[i];
3915 }
3916
3917 /* Check to see if there are any insmod configured
3918 rates to add */
3919 if (rates[0]) {
3920 memset(ai->config.rates, 0, sizeof(ai->config.rates));
3921 for (i = 0; i < 8 && rates[i]; i++) {
3922 ai->config.rates[i] = rates[i];
3923 }
3924 }
3925 set_bit (FLAG_COMMIT, &ai->flags);
3926 }
3927
3928 /* Setup the SSIDs if present */
3929 if (ssids[0]) {
3930 int i;
3931 for (i = 0; i < 3 && ssids[i]; i++) {
3932 size_t len = strlen(ssids[i]);
3933 if (len > 32)
3934 len = 32;
3935 mySsid.ssids[i].len = cpu_to_le16(len);
3936 memcpy(mySsid.ssids[i].ssid, ssids[i], len);
3937 }
3938 mySsid.len = cpu_to_le16(sizeof(mySsid));
3939 }
3940
3941 status = writeConfigRid(ai, lock);
3942 if (status != SUCCESS) return ERROR;
3943
3944 /* Set up the SSID list */
3945 if (ssids[0]) {
3946 status = writeSsidRid(ai, &mySsid, lock);
3947 if (status != SUCCESS) return ERROR;
3948 }
3949
3950 status = enable_MAC(ai, lock);
3951 if (status != SUCCESS)
3952 return ERROR;
3953
3954 /* Grab the initial wep key, we gotta save it for auto_wep */
3955 rc = readWepKeyRid(ai, &wkr, 1, lock);
3956 if (rc == SUCCESS) do {
3957 lastindex = wkr.kindex;
3958 if (wkr.kindex == cpu_to_le16(0xffff)) {
3959 ai->defindex = wkr.mac[0];
3960 }
3961 rc = readWepKeyRid(ai, &wkr, 0, lock);
3962 } while (lastindex != wkr.kindex);
3963
3964 try_auto_wep(ai);
3965
3966 return SUCCESS;
3967 }
3968
issuecommand(struct airo_info * ai,Cmd * pCmd,Resp * pRsp)3969 static u16 issuecommand(struct airo_info *ai, Cmd *pCmd, Resp *pRsp)
3970 {
3971 // Im really paranoid about letting it run forever!
3972 int max_tries = 600000;
3973
3974 if (IN4500(ai, EVSTAT) & EV_CMD)
3975 OUT4500(ai, EVACK, EV_CMD);
3976
3977 OUT4500(ai, PARAM0, pCmd->parm0);
3978 OUT4500(ai, PARAM1, pCmd->parm1);
3979 OUT4500(ai, PARAM2, pCmd->parm2);
3980 OUT4500(ai, COMMAND, pCmd->cmd);
3981
3982 while (max_tries-- && (IN4500(ai, EVSTAT) & EV_CMD) == 0) {
3983 if ((IN4500(ai, COMMAND)) == pCmd->cmd)
3984 // PC4500 didn't notice command, try again
3985 OUT4500(ai, COMMAND, pCmd->cmd);
3986 if (!in_atomic() && (max_tries & 255) == 0)
3987 schedule();
3988 }
3989
3990 if (max_tries == -1) {
3991 airo_print_err(ai->dev->name,
3992 "Max tries exceeded when issuing command");
3993 if (IN4500(ai, COMMAND) & COMMAND_BUSY)
3994 OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
3995 return ERROR;
3996 }
3997
3998 // command completed
3999 pRsp->status = IN4500(ai, STATUS);
4000 pRsp->rsp0 = IN4500(ai, RESP0);
4001 pRsp->rsp1 = IN4500(ai, RESP1);
4002 pRsp->rsp2 = IN4500(ai, RESP2);
4003 if ((pRsp->status & 0xff00)!=0 && pCmd->cmd != CMD_SOFTRESET)
4004 airo_print_err(ai->dev->name,
4005 "cmd:%x status:%x rsp0:%x rsp1:%x rsp2:%x",
4006 pCmd->cmd, pRsp->status, pRsp->rsp0, pRsp->rsp1,
4007 pRsp->rsp2);
4008
4009 // clear stuck command busy if necessary
4010 if (IN4500(ai, COMMAND) & COMMAND_BUSY) {
4011 OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
4012 }
4013 // acknowledge processing the status/response
4014 OUT4500(ai, EVACK, EV_CMD);
4015
4016 return SUCCESS;
4017 }
4018
4019 /* Sets up the bap to start exchange data. whichbap should
4020 * be one of the BAP0 or BAP1 defines. Locks should be held before
4021 * calling! */
bap_setup(struct airo_info * ai,u16 rid,u16 offset,int whichbap)4022 static int bap_setup(struct airo_info *ai, u16 rid, u16 offset, int whichbap)
4023 {
4024 int timeout = 50;
4025 int max_tries = 3;
4026
4027 OUT4500(ai, SELECT0+whichbap, rid);
4028 OUT4500(ai, OFFSET0+whichbap, offset);
4029 while (1) {
4030 int status = IN4500(ai, OFFSET0+whichbap);
4031 if (status & BAP_BUSY) {
4032 /* This isn't really a timeout, but its kinda
4033 close */
4034 if (timeout--) {
4035 continue;
4036 }
4037 } else if (status & BAP_ERR) {
4038 /* invalid rid or offset */
4039 airo_print_err(ai->dev->name, "BAP error %x %d",
4040 status, whichbap);
4041 return ERROR;
4042 } else if (status & BAP_DONE) { // success
4043 return SUCCESS;
4044 }
4045 if (!(max_tries--)) {
4046 airo_print_err(ai->dev->name,
4047 "BAP setup error too many retries\n");
4048 return ERROR;
4049 }
4050 // -- PC4500 missed it, try again
4051 OUT4500(ai, SELECT0+whichbap, rid);
4052 OUT4500(ai, OFFSET0+whichbap, offset);
4053 timeout = 50;
4054 }
4055 }
4056
4057 /* should only be called by aux_bap_read. This aux function and the
4058 following use concepts not documented in the developers guide. I
4059 got them from a patch given to my by Aironet */
aux_setup(struct airo_info * ai,u16 page,u16 offset,u16 * len)4060 static u16 aux_setup(struct airo_info *ai, u16 page,
4061 u16 offset, u16 *len)
4062 {
4063 u16 next;
4064
4065 OUT4500(ai, AUXPAGE, page);
4066 OUT4500(ai, AUXOFF, 0);
4067 next = IN4500(ai, AUXDATA);
4068 *len = IN4500(ai, AUXDATA)&0xff;
4069 if (offset != 4) OUT4500(ai, AUXOFF, offset);
4070 return next;
4071 }
4072
4073 /* requires call to bap_setup() first */
aux_bap_read(struct airo_info * ai,__le16 * pu16Dst,int bytelen,int whichbap)4074 static int aux_bap_read(struct airo_info *ai, __le16 *pu16Dst,
4075 int bytelen, int whichbap)
4076 {
4077 u16 len;
4078 u16 page;
4079 u16 offset;
4080 u16 next;
4081 int words;
4082 int i;
4083 unsigned long flags;
4084
4085 spin_lock_irqsave(&ai->aux_lock, flags);
4086 page = IN4500(ai, SWS0+whichbap);
4087 offset = IN4500(ai, SWS2+whichbap);
4088 next = aux_setup(ai, page, offset, &len);
4089 words = (bytelen+1)>>1;
4090
4091 for (i = 0; i<words;) {
4092 int count;
4093 count = (len>>1) < (words-i) ? (len>>1) : (words-i);
4094 if (!do8bitIO)
4095 insw(ai->dev->base_addr+DATA0+whichbap,
4096 pu16Dst+i, count);
4097 else
4098 insb(ai->dev->base_addr+DATA0+whichbap,
4099 pu16Dst+i, count << 1);
4100 i += count;
4101 if (i<words) {
4102 next = aux_setup(ai, next, 4, &len);
4103 }
4104 }
4105 spin_unlock_irqrestore(&ai->aux_lock, flags);
4106 return SUCCESS;
4107 }
4108
4109
4110 /* requires call to bap_setup() first */
fast_bap_read(struct airo_info * ai,__le16 * pu16Dst,int bytelen,int whichbap)4111 static int fast_bap_read(struct airo_info *ai, __le16 *pu16Dst,
4112 int bytelen, int whichbap)
4113 {
4114 bytelen = (bytelen + 1) & (~1); // round up to even value
4115 if (!do8bitIO)
4116 insw(ai->dev->base_addr+DATA0+whichbap, pu16Dst, bytelen>>1);
4117 else
4118 insb(ai->dev->base_addr+DATA0+whichbap, pu16Dst, bytelen);
4119 return SUCCESS;
4120 }
4121
4122 /* requires call to bap_setup() first */
bap_write(struct airo_info * ai,const __le16 * pu16Src,int bytelen,int whichbap)4123 static int bap_write(struct airo_info *ai, const __le16 *pu16Src,
4124 int bytelen, int whichbap)
4125 {
4126 bytelen = (bytelen + 1) & (~1); // round up to even value
4127 if (!do8bitIO)
4128 outsw(ai->dev->base_addr+DATA0+whichbap,
4129 pu16Src, bytelen>>1);
4130 else
4131 outsb(ai->dev->base_addr+DATA0+whichbap, pu16Src, bytelen);
4132 return SUCCESS;
4133 }
4134
PC4500_accessrid(struct airo_info * ai,u16 rid,u16 accmd)4135 static int PC4500_accessrid(struct airo_info *ai, u16 rid, u16 accmd)
4136 {
4137 Cmd cmd; /* for issuing commands */
4138 Resp rsp; /* response from commands */
4139 u16 status;
4140
4141 memset(&cmd, 0, sizeof(cmd));
4142 cmd.cmd = accmd;
4143 cmd.parm0 = rid;
4144 status = issuecommand(ai, &cmd, &rsp);
4145 if (status != 0) return status;
4146 if ((rsp.status & 0x7F00) != 0) {
4147 return (accmd << 8) + (rsp.rsp0 & 0xFF);
4148 }
4149 return 0;
4150 }
4151
4152 /* Note, that we are using BAP1 which is also used by transmit, so
4153 * we must get a lock. */
PC4500_readrid(struct airo_info * ai,u16 rid,void * pBuf,int len,int lock)4154 static int PC4500_readrid(struct airo_info *ai, u16 rid, void *pBuf, int len, int lock)
4155 {
4156 u16 status;
4157 int rc = SUCCESS;
4158
4159 if (lock) {
4160 if (down_interruptible(&ai->sem))
4161 return ERROR;
4162 }
4163 if (test_bit(FLAG_MPI,&ai->flags)) {
4164 Cmd cmd;
4165 Resp rsp;
4166
4167 memset(&cmd, 0, sizeof(cmd));
4168 memset(&rsp, 0, sizeof(rsp));
4169 ai->config_desc.rid_desc.valid = 1;
4170 ai->config_desc.rid_desc.len = RIDSIZE;
4171 ai->config_desc.rid_desc.rid = 0;
4172 ai->config_desc.rid_desc.host_addr = ai->ridbus;
4173
4174 cmd.cmd = CMD_ACCESS;
4175 cmd.parm0 = rid;
4176
4177 memcpy_toio(ai->config_desc.card_ram_off,
4178 &ai->config_desc.rid_desc, sizeof(Rid));
4179
4180 rc = issuecommand(ai, &cmd, &rsp);
4181
4182 if (rsp.status & 0x7f00)
4183 rc = rsp.rsp0;
4184 if (!rc)
4185 memcpy(pBuf, ai->config_desc.virtual_host_addr, len);
4186 goto done;
4187 } else {
4188 if ((status = PC4500_accessrid(ai, rid, CMD_ACCESS))!=SUCCESS) {
4189 rc = status;
4190 goto done;
4191 }
4192 if (bap_setup(ai, rid, 0, BAP1) != SUCCESS) {
4193 rc = ERROR;
4194 goto done;
4195 }
4196 // read the rid length field
4197 bap_read(ai, pBuf, 2, BAP1);
4198 // length for remaining part of rid
4199 len = min(len, (int)le16_to_cpu(*(__le16*)pBuf)) - 2;
4200
4201 if (len <= 2) {
4202 airo_print_err(ai->dev->name,
4203 "Rid %x has a length of %d which is too short",
4204 (int)rid, (int)len);
4205 rc = ERROR;
4206 goto done;
4207 }
4208 // read remainder of the rid
4209 rc = bap_read(ai, ((__le16*)pBuf)+1, len, BAP1);
4210 }
4211 done:
4212 if (lock)
4213 up(&ai->sem);
4214 return rc;
4215 }
4216
4217 /* Note, that we are using BAP1 which is also used by transmit, so
4218 * 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)4219 static int PC4500_writerid(struct airo_info *ai, u16 rid,
4220 const void *pBuf, int len, int lock)
4221 {
4222 u16 status;
4223 int rc = SUCCESS;
4224
4225 *(__le16*)pBuf = cpu_to_le16((u16)len);
4226
4227 if (lock) {
4228 if (down_interruptible(&ai->sem))
4229 return ERROR;
4230 }
4231 if (test_bit(FLAG_MPI,&ai->flags)) {
4232 Cmd cmd;
4233 Resp rsp;
4234
4235 if (test_bit(FLAG_ENABLED, &ai->flags) && (RID_WEP_TEMP != rid))
4236 airo_print_err(ai->dev->name,
4237 "%s: MAC should be disabled (rid=%04x)",
4238 __func__, rid);
4239 memset(&cmd, 0, sizeof(cmd));
4240 memset(&rsp, 0, sizeof(rsp));
4241
4242 ai->config_desc.rid_desc.valid = 1;
4243 ai->config_desc.rid_desc.len = *((u16 *)pBuf);
4244 ai->config_desc.rid_desc.rid = 0;
4245
4246 cmd.cmd = CMD_WRITERID;
4247 cmd.parm0 = rid;
4248
4249 memcpy_toio(ai->config_desc.card_ram_off,
4250 &ai->config_desc.rid_desc, sizeof(Rid));
4251
4252 if (len < 4 || len > 2047) {
4253 airo_print_err(ai->dev->name, "%s: len=%d", __func__, len);
4254 rc = -1;
4255 } else {
4256 memcpy(ai->config_desc.virtual_host_addr,
4257 pBuf, len);
4258
4259 rc = issuecommand(ai, &cmd, &rsp);
4260 if ((rc & 0xff00) != 0) {
4261 airo_print_err(ai->dev->name, "%s: Write rid Error %d",
4262 __func__, rc);
4263 airo_print_err(ai->dev->name, "%s: Cmd=%04x",
4264 __func__, cmd.cmd);
4265 }
4266
4267 if ((rsp.status & 0x7f00))
4268 rc = rsp.rsp0;
4269 }
4270 } else {
4271 // --- first access so that we can write the rid data
4272 if ((status = PC4500_accessrid(ai, rid, CMD_ACCESS)) != 0) {
4273 rc = status;
4274 goto done;
4275 }
4276 // --- now write the rid data
4277 if (bap_setup(ai, rid, 0, BAP1) != SUCCESS) {
4278 rc = ERROR;
4279 goto done;
4280 }
4281 bap_write(ai, pBuf, len, BAP1);
4282 // ---now commit the rid data
4283 rc = PC4500_accessrid(ai, rid, 0x100|CMD_ACCESS);
4284 }
4285 done:
4286 if (lock)
4287 up(&ai->sem);
4288 return rc;
4289 }
4290
4291 /* Allocates a FID to be used for transmitting packets. We only use
4292 one for now. */
transmit_allocate(struct airo_info * ai,int lenPayload,int raw)4293 static u16 transmit_allocate(struct airo_info *ai, int lenPayload, int raw)
4294 {
4295 unsigned int loop = 3000;
4296 Cmd cmd;
4297 Resp rsp;
4298 u16 txFid;
4299 __le16 txControl;
4300
4301 cmd.cmd = CMD_ALLOCATETX;
4302 cmd.parm0 = lenPayload;
4303 if (down_interruptible(&ai->sem))
4304 return ERROR;
4305 if (issuecommand(ai, &cmd, &rsp) != SUCCESS) {
4306 txFid = ERROR;
4307 goto done;
4308 }
4309 if ((rsp.status & 0xFF00) != 0) {
4310 txFid = ERROR;
4311 goto done;
4312 }
4313 /* wait for the allocate event/indication
4314 * It makes me kind of nervous that this can just sit here and spin,
4315 * but in practice it only loops like four times. */
4316 while (((IN4500(ai, EVSTAT) & EV_ALLOC) == 0) && --loop);
4317 if (!loop) {
4318 txFid = ERROR;
4319 goto done;
4320 }
4321
4322 // get the allocated fid and acknowledge
4323 txFid = IN4500(ai, TXALLOCFID);
4324 OUT4500(ai, EVACK, EV_ALLOC);
4325
4326 /* The CARD is pretty cool since it converts the ethernet packet
4327 * into 802.11. Also note that we don't release the FID since we
4328 * will be using the same one over and over again. */
4329 /* We only have to setup the control once since we are not
4330 * releasing the fid. */
4331 if (raw)
4332 txControl = cpu_to_le16(TXCTL_TXOK | TXCTL_TXEX | TXCTL_802_11
4333 | TXCTL_ETHERNET | TXCTL_NORELEASE);
4334 else
4335 txControl = cpu_to_le16(TXCTL_TXOK | TXCTL_TXEX | TXCTL_802_3
4336 | TXCTL_ETHERNET | TXCTL_NORELEASE);
4337 if (bap_setup(ai, txFid, 0x0008, BAP1) != SUCCESS)
4338 txFid = ERROR;
4339 else
4340 bap_write(ai, &txControl, sizeof(txControl), BAP1);
4341
4342 done:
4343 up(&ai->sem);
4344
4345 return txFid;
4346 }
4347
4348 /* In general BAP1 is dedicated to transmiting packets. However,
4349 since we need a BAP when accessing RIDs, we also use BAP1 for that.
4350 Make sure the BAP1 spinlock is held when this is called. */
transmit_802_3_packet(struct airo_info * ai,int len,char * pPacket)4351 static int transmit_802_3_packet(struct airo_info *ai, int len, char *pPacket)
4352 {
4353 __le16 payloadLen;
4354 Cmd cmd;
4355 Resp rsp;
4356 int miclen = 0;
4357 u16 txFid = len;
4358 MICBuffer pMic;
4359
4360 len >>= 16;
4361
4362 if (len <= ETH_ALEN * 2) {
4363 airo_print_warn(ai->dev->name, "Short packet %d", len);
4364 return ERROR;
4365 }
4366 len -= ETH_ALEN * 2;
4367
4368 if (test_bit(FLAG_MIC_CAPABLE, &ai->flags) && ai->micstats.enabled &&
4369 (ntohs(((__be16 *)pPacket)[6]) != 0x888E)) {
4370 if (encapsulate(ai, (etherHead *)pPacket,&pMic, len) != SUCCESS)
4371 return ERROR;
4372 miclen = sizeof(pMic);
4373 }
4374 // packet is destination[6], source[6], payload[len-12]
4375 // write the payload length and dst/src/payload
4376 if (bap_setup(ai, txFid, 0x0036, BAP1) != SUCCESS) return ERROR;
4377 /* The hardware addresses aren't counted as part of the payload, so
4378 * we have to subtract the 12 bytes for the addresses off */
4379 payloadLen = cpu_to_le16(len + miclen);
4380 bap_write(ai, &payloadLen, sizeof(payloadLen), BAP1);
4381 bap_write(ai, (__le16*)pPacket, sizeof(etherHead), BAP1);
4382 if (miclen)
4383 bap_write(ai, (__le16*)&pMic, miclen, BAP1);
4384 bap_write(ai, (__le16*)(pPacket + sizeof(etherHead)), len, BAP1);
4385 // issue the transmit command
4386 memset(&cmd, 0, sizeof(cmd));
4387 cmd.cmd = CMD_TRANSMIT;
4388 cmd.parm0 = txFid;
4389 if (issuecommand(ai, &cmd, &rsp) != SUCCESS) return ERROR;
4390 if ((rsp.status & 0xFF00) != 0) return ERROR;
4391 return SUCCESS;
4392 }
4393
transmit_802_11_packet(struct airo_info * ai,int len,char * pPacket)4394 static int transmit_802_11_packet(struct airo_info *ai, int len, char *pPacket)
4395 {
4396 __le16 fc, payloadLen;
4397 Cmd cmd;
4398 Resp rsp;
4399 int hdrlen;
4400 static u8 tail[(30-10) + 2 + 6] = {[30-10] = 6};
4401 /* padding of header to full size + le16 gaplen (6) + gaplen bytes */
4402 u16 txFid = len;
4403 len >>= 16;
4404
4405 fc = *(__le16*)pPacket;
4406 hdrlen = header_len(fc);
4407
4408 if (len < hdrlen) {
4409 airo_print_warn(ai->dev->name, "Short packet %d", len);
4410 return ERROR;
4411 }
4412
4413 /* packet is 802.11 header + payload
4414 * write the payload length and dst/src/payload */
4415 if (bap_setup(ai, txFid, 6, BAP1) != SUCCESS) return ERROR;
4416 /* The 802.11 header aren't counted as part of the payload, so
4417 * we have to subtract the header bytes off */
4418 payloadLen = cpu_to_le16(len-hdrlen);
4419 bap_write(ai, &payloadLen, sizeof(payloadLen), BAP1);
4420 if (bap_setup(ai, txFid, 0x0014, BAP1) != SUCCESS) return ERROR;
4421 bap_write(ai, (__le16 *)pPacket, hdrlen, BAP1);
4422 bap_write(ai, (__le16 *)(tail + (hdrlen - 10)), 38 - hdrlen, BAP1);
4423
4424 bap_write(ai, (__le16 *)(pPacket + hdrlen), len - hdrlen, BAP1);
4425 // issue the transmit command
4426 memset(&cmd, 0, sizeof(cmd));
4427 cmd.cmd = CMD_TRANSMIT;
4428 cmd.parm0 = txFid;
4429 if (issuecommand(ai, &cmd, &rsp) != SUCCESS) return ERROR;
4430 if ((rsp.status & 0xFF00) != 0) return ERROR;
4431 return SUCCESS;
4432 }
4433
4434 /*
4435 * This is the proc_fs routines. It is a bit messier than I would
4436 * like! Feel free to clean it up!
4437 */
4438
4439 static ssize_t proc_read(struct file *file,
4440 char __user *buffer,
4441 size_t len,
4442 loff_t *offset);
4443
4444 static ssize_t proc_write(struct file *file,
4445 const char __user *buffer,
4446 size_t len,
4447 loff_t *offset);
4448 static int proc_close(struct inode *inode, struct file *file);
4449
4450 static int proc_stats_open(struct inode *inode, struct file *file);
4451 static int proc_statsdelta_open(struct inode *inode, struct file *file);
4452 static int proc_status_open(struct inode *inode, struct file *file);
4453 static int proc_SSID_open(struct inode *inode, struct file *file);
4454 static int proc_APList_open(struct inode *inode, struct file *file);
4455 static int proc_BSSList_open(struct inode *inode, struct file *file);
4456 static int proc_config_open(struct inode *inode, struct file *file);
4457 static int proc_wepkey_open(struct inode *inode, struct file *file);
4458
4459 static const struct proc_ops proc_statsdelta_ops = {
4460 .proc_read = proc_read,
4461 .proc_open = proc_statsdelta_open,
4462 .proc_release = proc_close,
4463 .proc_lseek = default_llseek,
4464 };
4465
4466 static const struct proc_ops proc_stats_ops = {
4467 .proc_read = proc_read,
4468 .proc_open = proc_stats_open,
4469 .proc_release = proc_close,
4470 .proc_lseek = default_llseek,
4471 };
4472
4473 static const struct proc_ops proc_status_ops = {
4474 .proc_read = proc_read,
4475 .proc_open = proc_status_open,
4476 .proc_release = proc_close,
4477 .proc_lseek = default_llseek,
4478 };
4479
4480 static const struct proc_ops proc_SSID_ops = {
4481 .proc_read = proc_read,
4482 .proc_write = proc_write,
4483 .proc_open = proc_SSID_open,
4484 .proc_release = proc_close,
4485 .proc_lseek = default_llseek,
4486 };
4487
4488 static const struct proc_ops proc_BSSList_ops = {
4489 .proc_read = proc_read,
4490 .proc_write = proc_write,
4491 .proc_open = proc_BSSList_open,
4492 .proc_release = proc_close,
4493 .proc_lseek = default_llseek,
4494 };
4495
4496 static const struct proc_ops proc_APList_ops = {
4497 .proc_read = proc_read,
4498 .proc_write = proc_write,
4499 .proc_open = proc_APList_open,
4500 .proc_release = proc_close,
4501 .proc_lseek = default_llseek,
4502 };
4503
4504 static const struct proc_ops proc_config_ops = {
4505 .proc_read = proc_read,
4506 .proc_write = proc_write,
4507 .proc_open = proc_config_open,
4508 .proc_release = proc_close,
4509 .proc_lseek = default_llseek,
4510 };
4511
4512 static const struct proc_ops proc_wepkey_ops = {
4513 .proc_read = proc_read,
4514 .proc_write = proc_write,
4515 .proc_open = proc_wepkey_open,
4516 .proc_release = proc_close,
4517 .proc_lseek = default_llseek,
4518 };
4519
4520 static struct proc_dir_entry *airo_entry;
4521
4522 struct proc_data {
4523 int release_buffer;
4524 int readlen;
4525 char *rbuffer;
4526 int writelen;
4527 int maxwritelen;
4528 char *wbuffer;
4529 void (*on_close) (struct inode *, struct file *);
4530 };
4531
setup_proc_entry(struct net_device * dev,struct airo_info * apriv)4532 static int setup_proc_entry(struct net_device *dev,
4533 struct airo_info *apriv)
4534 {
4535 struct proc_dir_entry *entry;
4536
4537 /* First setup the device directory */
4538 strcpy(apriv->proc_name, dev->name);
4539 apriv->proc_entry = proc_mkdir_mode(apriv->proc_name, airo_perm,
4540 airo_entry);
4541 if (!apriv->proc_entry)
4542 return -ENOMEM;
4543 proc_set_user(apriv->proc_entry, proc_kuid, proc_kgid);
4544
4545 /* Setup the StatsDelta */
4546 entry = proc_create_data("StatsDelta", 0444 & proc_perm,
4547 apriv->proc_entry, &proc_statsdelta_ops, dev);
4548 if (!entry)
4549 goto fail;
4550 proc_set_user(entry, proc_kuid, proc_kgid);
4551
4552 /* Setup the Stats */
4553 entry = proc_create_data("Stats", 0444 & proc_perm,
4554 apriv->proc_entry, &proc_stats_ops, dev);
4555 if (!entry)
4556 goto fail;
4557 proc_set_user(entry, proc_kuid, proc_kgid);
4558
4559 /* Setup the Status */
4560 entry = proc_create_data("Status", 0444 & proc_perm,
4561 apriv->proc_entry, &proc_status_ops, dev);
4562 if (!entry)
4563 goto fail;
4564 proc_set_user(entry, proc_kuid, proc_kgid);
4565
4566 /* Setup the Config */
4567 entry = proc_create_data("Config", proc_perm,
4568 apriv->proc_entry, &proc_config_ops, dev);
4569 if (!entry)
4570 goto fail;
4571 proc_set_user(entry, proc_kuid, proc_kgid);
4572
4573 /* Setup the SSID */
4574 entry = proc_create_data("SSID", proc_perm,
4575 apriv->proc_entry, &proc_SSID_ops, dev);
4576 if (!entry)
4577 goto fail;
4578 proc_set_user(entry, proc_kuid, proc_kgid);
4579
4580 /* Setup the APList */
4581 entry = proc_create_data("APList", proc_perm,
4582 apriv->proc_entry, &proc_APList_ops, dev);
4583 if (!entry)
4584 goto fail;
4585 proc_set_user(entry, proc_kuid, proc_kgid);
4586
4587 /* Setup the BSSList */
4588 entry = proc_create_data("BSSList", proc_perm,
4589 apriv->proc_entry, &proc_BSSList_ops, dev);
4590 if (!entry)
4591 goto fail;
4592 proc_set_user(entry, proc_kuid, proc_kgid);
4593
4594 /* Setup the WepKey */
4595 entry = proc_create_data("WepKey", proc_perm,
4596 apriv->proc_entry, &proc_wepkey_ops, dev);
4597 if (!entry)
4598 goto fail;
4599 proc_set_user(entry, proc_kuid, proc_kgid);
4600 return 0;
4601
4602 fail:
4603 remove_proc_subtree(apriv->proc_name, airo_entry);
4604 return -ENOMEM;
4605 }
4606
takedown_proc_entry(struct net_device * dev,struct airo_info * apriv)4607 static int takedown_proc_entry(struct net_device *dev,
4608 struct airo_info *apriv)
4609 {
4610 remove_proc_subtree(apriv->proc_name, airo_entry);
4611 return 0;
4612 }
4613
4614 /*
4615 * What we want from the proc_fs is to be able to efficiently read
4616 * and write the configuration. To do this, we want to read the
4617 * configuration when the file is opened and write it when the file is
4618 * closed. So basically we allocate a read buffer at open and fill it
4619 * with data, and allocate a write buffer and read it at close.
4620 */
4621
4622 /*
4623 * The read routine is generic, it relies on the preallocated rbuffer
4624 * to supply the data.
4625 */
proc_read(struct file * file,char __user * buffer,size_t len,loff_t * offset)4626 static ssize_t proc_read(struct file *file,
4627 char __user *buffer,
4628 size_t len,
4629 loff_t *offset)
4630 {
4631 struct proc_data *priv = file->private_data;
4632
4633 if (!priv->rbuffer)
4634 return -EINVAL;
4635
4636 return simple_read_from_buffer(buffer, len, offset, priv->rbuffer,
4637 priv->readlen);
4638 }
4639
4640 /*
4641 * The write routine is generic, it fills in a preallocated rbuffer
4642 * to supply the data.
4643 */
proc_write(struct file * file,const char __user * buffer,size_t len,loff_t * offset)4644 static ssize_t proc_write(struct file *file,
4645 const char __user *buffer,
4646 size_t len,
4647 loff_t *offset)
4648 {
4649 ssize_t ret;
4650 struct proc_data *priv = file->private_data;
4651
4652 if (!priv->wbuffer)
4653 return -EINVAL;
4654
4655 ret = simple_write_to_buffer(priv->wbuffer, priv->maxwritelen, offset,
4656 buffer, len);
4657 if (ret > 0)
4658 priv->writelen = max_t(int, priv->writelen, *offset);
4659
4660 return ret;
4661 }
4662
proc_status_open(struct inode * inode,struct file * file)4663 static int proc_status_open(struct inode *inode, struct file *file)
4664 {
4665 struct proc_data *data;
4666 struct net_device *dev = PDE_DATA(inode);
4667 struct airo_info *apriv = dev->ml_priv;
4668 CapabilityRid cap_rid;
4669 StatusRid status_rid;
4670 u16 mode;
4671 int i;
4672
4673 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
4674 return -ENOMEM;
4675 data = file->private_data;
4676 if ((data->rbuffer = kmalloc(2048, GFP_KERNEL)) == NULL) {
4677 kfree (file->private_data);
4678 return -ENOMEM;
4679 }
4680
4681 readStatusRid(apriv, &status_rid, 1);
4682 readCapabilityRid(apriv, &cap_rid, 1);
4683
4684 mode = le16_to_cpu(status_rid.mode);
4685
4686 i = sprintf(data->rbuffer, "Status: %s%s%s%s%s%s%s%s%s\n",
4687 mode & 1 ? "CFG ": "",
4688 mode & 2 ? "ACT ": "",
4689 mode & 0x10 ? "SYN ": "",
4690 mode & 0x20 ? "LNK ": "",
4691 mode & 0x40 ? "LEAP ": "",
4692 mode & 0x80 ? "PRIV ": "",
4693 mode & 0x100 ? "KEY ": "",
4694 mode & 0x200 ? "WEP ": "",
4695 mode & 0x8000 ? "ERR ": "");
4696 sprintf(data->rbuffer+i, "Mode: %x\n"
4697 "Signal Strength: %d\n"
4698 "Signal Quality: %d\n"
4699 "SSID: %-.*s\n"
4700 "AP: %-.16s\n"
4701 "Freq: %d\n"
4702 "BitRate: %dmbs\n"
4703 "Driver Version: %s\n"
4704 "Device: %s\nManufacturer: %s\nFirmware Version: %s\n"
4705 "Radio type: %x\nCountry: %x\nHardware Version: %x\n"
4706 "Software Version: %x\nSoftware Subversion: %x\n"
4707 "Boot block version: %x\n",
4708 le16_to_cpu(status_rid.mode),
4709 le16_to_cpu(status_rid.normalizedSignalStrength),
4710 le16_to_cpu(status_rid.signalQuality),
4711 le16_to_cpu(status_rid.SSIDlen),
4712 status_rid.SSID,
4713 status_rid.apName,
4714 le16_to_cpu(status_rid.channel),
4715 le16_to_cpu(status_rid.currentXmitRate) / 2,
4716 version,
4717 cap_rid.prodName,
4718 cap_rid.manName,
4719 cap_rid.prodVer,
4720 le16_to_cpu(cap_rid.radioType),
4721 le16_to_cpu(cap_rid.country),
4722 le16_to_cpu(cap_rid.hardVer),
4723 le16_to_cpu(cap_rid.softVer),
4724 le16_to_cpu(cap_rid.softSubVer),
4725 le16_to_cpu(cap_rid.bootBlockVer));
4726 data->readlen = strlen(data->rbuffer);
4727 return 0;
4728 }
4729
4730 static int proc_stats_rid_open(struct inode*, struct file*, u16);
proc_statsdelta_open(struct inode * inode,struct file * file)4731 static int proc_statsdelta_open(struct inode *inode,
4732 struct file *file)
4733 {
4734 if (file->f_mode&FMODE_WRITE) {
4735 return proc_stats_rid_open(inode, file, RID_STATSDELTACLEAR);
4736 }
4737 return proc_stats_rid_open(inode, file, RID_STATSDELTA);
4738 }
4739
proc_stats_open(struct inode * inode,struct file * file)4740 static int proc_stats_open(struct inode *inode, struct file *file)
4741 {
4742 return proc_stats_rid_open(inode, file, RID_STATS);
4743 }
4744
proc_stats_rid_open(struct inode * inode,struct file * file,u16 rid)4745 static int proc_stats_rid_open(struct inode *inode,
4746 struct file *file,
4747 u16 rid)
4748 {
4749 struct proc_data *data;
4750 struct net_device *dev = PDE_DATA(inode);
4751 struct airo_info *apriv = dev->ml_priv;
4752 StatsRid stats;
4753 int i, j;
4754 __le32 *vals = stats.vals;
4755 int len;
4756
4757 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
4758 return -ENOMEM;
4759 data = file->private_data;
4760 if ((data->rbuffer = kmalloc(4096, GFP_KERNEL)) == NULL) {
4761 kfree (file->private_data);
4762 return -ENOMEM;
4763 }
4764
4765 readStatsRid(apriv, &stats, rid, 1);
4766 len = le16_to_cpu(stats.len);
4767
4768 j = 0;
4769 for (i = 0; statsLabels[i]!=(char *)-1 && i*4<len; i++) {
4770 if (!statsLabels[i]) continue;
4771 if (j+strlen(statsLabels[i])+16>4096) {
4772 airo_print_warn(apriv->dev->name,
4773 "Potentially disastrous buffer overflow averted!");
4774 break;
4775 }
4776 j+=sprintf(data->rbuffer+j, "%s: %u\n", statsLabels[i],
4777 le32_to_cpu(vals[i]));
4778 }
4779 if (i*4 >= len) {
4780 airo_print_warn(apriv->dev->name, "Got a short rid");
4781 }
4782 data->readlen = j;
4783 return 0;
4784 }
4785
get_dec_u16(char * buffer,int * start,int limit)4786 static int get_dec_u16(char *buffer, int *start, int limit)
4787 {
4788 u16 value;
4789 int valid = 0;
4790 for (value = 0; *start < limit && buffer[*start] >= '0' &&
4791 buffer[*start] <= '9'; (*start)++) {
4792 valid = 1;
4793 value *= 10;
4794 value += buffer[*start] - '0';
4795 }
4796 if (!valid) return -1;
4797 return value;
4798 }
4799
4800 static int airo_config_commit(struct net_device *dev,
4801 struct iw_request_info *info, void *zwrq,
4802 char *extra);
4803
sniffing_mode(struct airo_info * ai)4804 static inline int sniffing_mode(struct airo_info *ai)
4805 {
4806 return (le16_to_cpu(ai->config.rmode) & le16_to_cpu(RXMODE_MASK)) >=
4807 le16_to_cpu(RXMODE_RFMON);
4808 }
4809
proc_config_on_close(struct inode * inode,struct file * file)4810 static void proc_config_on_close(struct inode *inode, struct file *file)
4811 {
4812 struct proc_data *data = file->private_data;
4813 struct net_device *dev = PDE_DATA(inode);
4814 struct airo_info *ai = dev->ml_priv;
4815 char *line;
4816
4817 if (!data->writelen) return;
4818
4819 readConfigRid(ai, 1);
4820 set_bit (FLAG_COMMIT, &ai->flags);
4821
4822 line = data->wbuffer;
4823 while (line[0]) {
4824 /*** Mode processing */
4825 if (!strncmp(line, "Mode: ", 6)) {
4826 line += 6;
4827 if (sniffing_mode(ai))
4828 set_bit (FLAG_RESET, &ai->flags);
4829 ai->config.rmode &= ~RXMODE_FULL_MASK;
4830 clear_bit (FLAG_802_11, &ai->flags);
4831 ai->config.opmode &= ~MODE_CFG_MASK;
4832 ai->config.scanMode = SCANMODE_ACTIVE;
4833 if (line[0] == 'a') {
4834 ai->config.opmode |= MODE_STA_IBSS;
4835 } else {
4836 ai->config.opmode |= MODE_STA_ESS;
4837 if (line[0] == 'r') {
4838 ai->config.rmode |= RXMODE_RFMON | RXMODE_DISABLE_802_3_HEADER;
4839 ai->config.scanMode = SCANMODE_PASSIVE;
4840 set_bit (FLAG_802_11, &ai->flags);
4841 } else if (line[0] == 'y') {
4842 ai->config.rmode |= RXMODE_RFMON_ANYBSS | RXMODE_DISABLE_802_3_HEADER;
4843 ai->config.scanMode = SCANMODE_PASSIVE;
4844 set_bit (FLAG_802_11, &ai->flags);
4845 } else if (line[0] == 'l')
4846 ai->config.rmode |= RXMODE_LANMON;
4847 }
4848 set_bit (FLAG_COMMIT, &ai->flags);
4849 }
4850
4851 /*** Radio status */
4852 else if (!strncmp(line,"Radio: ", 7)) {
4853 line += 7;
4854 if (!strncmp(line,"off", 3)) {
4855 set_bit (FLAG_RADIO_OFF, &ai->flags);
4856 } else {
4857 clear_bit (FLAG_RADIO_OFF, &ai->flags);
4858 }
4859 }
4860 /*** NodeName processing */
4861 else if (!strncmp(line, "NodeName: ", 10)) {
4862 int j;
4863
4864 line += 10;
4865 memset(ai->config.nodeName, 0, 16);
4866 /* Do the name, assume a space between the mode and node name */
4867 for (j = 0; j < 16 && line[j] != '\n'; j++) {
4868 ai->config.nodeName[j] = line[j];
4869 }
4870 set_bit (FLAG_COMMIT, &ai->flags);
4871 }
4872
4873 /*** PowerMode processing */
4874 else if (!strncmp(line, "PowerMode: ", 11)) {
4875 line += 11;
4876 if (!strncmp(line, "PSPCAM", 6)) {
4877 ai->config.powerSaveMode = POWERSAVE_PSPCAM;
4878 set_bit (FLAG_COMMIT, &ai->flags);
4879 } else if (!strncmp(line, "PSP", 3)) {
4880 ai->config.powerSaveMode = POWERSAVE_PSP;
4881 set_bit (FLAG_COMMIT, &ai->flags);
4882 } else {
4883 ai->config.powerSaveMode = POWERSAVE_CAM;
4884 set_bit (FLAG_COMMIT, &ai->flags);
4885 }
4886 } else if (!strncmp(line, "DataRates: ", 11)) {
4887 int v, i = 0, k = 0; /* i is index into line,
4888 k is index to rates */
4889
4890 line += 11;
4891 while ((v = get_dec_u16(line, &i, 3))!=-1) {
4892 ai->config.rates[k++] = (u8)v;
4893 line += i + 1;
4894 i = 0;
4895 }
4896 set_bit (FLAG_COMMIT, &ai->flags);
4897 } else if (!strncmp(line, "Channel: ", 9)) {
4898 int v, i = 0;
4899 line += 9;
4900 v = get_dec_u16(line, &i, i+3);
4901 if (v != -1) {
4902 ai->config.channelSet = cpu_to_le16(v);
4903 set_bit (FLAG_COMMIT, &ai->flags);
4904 }
4905 } else if (!strncmp(line, "XmitPower: ", 11)) {
4906 int v, i = 0;
4907 line += 11;
4908 v = get_dec_u16(line, &i, i+3);
4909 if (v != -1) {
4910 ai->config.txPower = cpu_to_le16(v);
4911 set_bit (FLAG_COMMIT, &ai->flags);
4912 }
4913 } else if (!strncmp(line, "WEP: ", 5)) {
4914 line += 5;
4915 switch(line[0]) {
4916 case 's':
4917 set_auth_type(ai, AUTH_SHAREDKEY);
4918 break;
4919 case 'e':
4920 set_auth_type(ai, AUTH_ENCRYPT);
4921 break;
4922 default:
4923 set_auth_type(ai, AUTH_OPEN);
4924 break;
4925 }
4926 set_bit (FLAG_COMMIT, &ai->flags);
4927 } else if (!strncmp(line, "LongRetryLimit: ", 16)) {
4928 int v, i = 0;
4929
4930 line += 16;
4931 v = get_dec_u16(line, &i, 3);
4932 v = (v<0) ? 0 : ((v>255) ? 255 : v);
4933 ai->config.longRetryLimit = cpu_to_le16(v);
4934 set_bit (FLAG_COMMIT, &ai->flags);
4935 } else if (!strncmp(line, "ShortRetryLimit: ", 17)) {
4936 int v, i = 0;
4937
4938 line += 17;
4939 v = get_dec_u16(line, &i, 3);
4940 v = (v<0) ? 0 : ((v>255) ? 255 : v);
4941 ai->config.shortRetryLimit = cpu_to_le16(v);
4942 set_bit (FLAG_COMMIT, &ai->flags);
4943 } else if (!strncmp(line, "RTSThreshold: ", 14)) {
4944 int v, i = 0;
4945
4946 line += 14;
4947 v = get_dec_u16(line, &i, 4);
4948 v = (v<0) ? 0 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v);
4949 ai->config.rtsThres = cpu_to_le16(v);
4950 set_bit (FLAG_COMMIT, &ai->flags);
4951 } else if (!strncmp(line, "TXMSDULifetime: ", 16)) {
4952 int v, i = 0;
4953
4954 line += 16;
4955 v = get_dec_u16(line, &i, 5);
4956 v = (v<0) ? 0 : v;
4957 ai->config.txLifetime = cpu_to_le16(v);
4958 set_bit (FLAG_COMMIT, &ai->flags);
4959 } else if (!strncmp(line, "RXMSDULifetime: ", 16)) {
4960 int v, i = 0;
4961
4962 line += 16;
4963 v = get_dec_u16(line, &i, 5);
4964 v = (v<0) ? 0 : v;
4965 ai->config.rxLifetime = cpu_to_le16(v);
4966 set_bit (FLAG_COMMIT, &ai->flags);
4967 } else if (!strncmp(line, "TXDiversity: ", 13)) {
4968 ai->config.txDiversity =
4969 (line[13]=='l') ? 1 :
4970 ((line[13]=='r')? 2: 3);
4971 set_bit (FLAG_COMMIT, &ai->flags);
4972 } else if (!strncmp(line, "RXDiversity: ", 13)) {
4973 ai->config.rxDiversity =
4974 (line[13]=='l') ? 1 :
4975 ((line[13]=='r')? 2: 3);
4976 set_bit (FLAG_COMMIT, &ai->flags);
4977 } else if (!strncmp(line, "FragThreshold: ", 15)) {
4978 int v, i = 0;
4979
4980 line += 15;
4981 v = get_dec_u16(line, &i, 4);
4982 v = (v<256) ? 256 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v);
4983 v = v & 0xfffe; /* Make sure its even */
4984 ai->config.fragThresh = cpu_to_le16(v);
4985 set_bit (FLAG_COMMIT, &ai->flags);
4986 } else if (!strncmp(line, "Modulation: ", 12)) {
4987 line += 12;
4988 switch(*line) {
4989 case 'd': ai->config.modulation = MOD_DEFAULT; set_bit(FLAG_COMMIT, &ai->flags); break;
4990 case 'c': ai->config.modulation = MOD_CCK; set_bit(FLAG_COMMIT, &ai->flags); break;
4991 case 'm': ai->config.modulation = MOD_MOK; set_bit(FLAG_COMMIT, &ai->flags); break;
4992 default: airo_print_warn(ai->dev->name, "Unknown modulation");
4993 }
4994 } else if (!strncmp(line, "Preamble: ", 10)) {
4995 line += 10;
4996 switch(*line) {
4997 case 'a': ai->config.preamble = PREAMBLE_AUTO; set_bit(FLAG_COMMIT, &ai->flags); break;
4998 case 'l': ai->config.preamble = PREAMBLE_LONG; set_bit(FLAG_COMMIT, &ai->flags); break;
4999 case 's': ai->config.preamble = PREAMBLE_SHORT; set_bit(FLAG_COMMIT, &ai->flags); break;
5000 default: airo_print_warn(ai->dev->name, "Unknown preamble");
5001 }
5002 } else {
5003 airo_print_warn(ai->dev->name, "Couldn't figure out %s", line);
5004 }
5005 while (line[0] && line[0] != '\n') line++;
5006 if (line[0]) line++;
5007 }
5008 airo_config_commit(dev, NULL, NULL, NULL);
5009 }
5010
get_rmode(__le16 mode)5011 static const char *get_rmode(__le16 mode)
5012 {
5013 switch(mode & RXMODE_MASK) {
5014 case RXMODE_RFMON: return "rfmon";
5015 case RXMODE_RFMON_ANYBSS: return "yna (any) bss rfmon";
5016 case RXMODE_LANMON: return "lanmon";
5017 }
5018 return "ESS";
5019 }
5020
proc_config_open(struct inode * inode,struct file * file)5021 static int proc_config_open(struct inode *inode, struct file *file)
5022 {
5023 struct proc_data *data;
5024 struct net_device *dev = PDE_DATA(inode);
5025 struct airo_info *ai = dev->ml_priv;
5026 int i;
5027 __le16 mode;
5028
5029 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5030 return -ENOMEM;
5031 data = file->private_data;
5032 if ((data->rbuffer = kmalloc(2048, GFP_KERNEL)) == NULL) {
5033 kfree (file->private_data);
5034 return -ENOMEM;
5035 }
5036 if ((data->wbuffer = kzalloc(2048, GFP_KERNEL)) == NULL) {
5037 kfree (data->rbuffer);
5038 kfree (file->private_data);
5039 return -ENOMEM;
5040 }
5041 data->maxwritelen = 2048;
5042 data->on_close = proc_config_on_close;
5043
5044 readConfigRid(ai, 1);
5045
5046 mode = ai->config.opmode & MODE_CFG_MASK;
5047 i = sprintf(data->rbuffer,
5048 "Mode: %s\n"
5049 "Radio: %s\n"
5050 "NodeName: %-16s\n"
5051 "PowerMode: %s\n"
5052 "DataRates: %d %d %d %d %d %d %d %d\n"
5053 "Channel: %d\n"
5054 "XmitPower: %d\n",
5055 mode == MODE_STA_IBSS ? "adhoc" :
5056 mode == MODE_STA_ESS ? get_rmode(ai->config.rmode):
5057 mode == MODE_AP ? "AP" :
5058 mode == MODE_AP_RPTR ? "AP RPTR" : "Error",
5059 test_bit(FLAG_RADIO_OFF, &ai->flags) ? "off" : "on",
5060 ai->config.nodeName,
5061 ai->config.powerSaveMode == POWERSAVE_CAM ? "CAM" :
5062 ai->config.powerSaveMode == POWERSAVE_PSP ? "PSP" :
5063 ai->config.powerSaveMode == POWERSAVE_PSPCAM ? "PSPCAM" :
5064 "Error",
5065 (int)ai->config.rates[0],
5066 (int)ai->config.rates[1],
5067 (int)ai->config.rates[2],
5068 (int)ai->config.rates[3],
5069 (int)ai->config.rates[4],
5070 (int)ai->config.rates[5],
5071 (int)ai->config.rates[6],
5072 (int)ai->config.rates[7],
5073 le16_to_cpu(ai->config.channelSet),
5074 le16_to_cpu(ai->config.txPower)
5075 );
5076 sprintf(data->rbuffer + i,
5077 "LongRetryLimit: %d\n"
5078 "ShortRetryLimit: %d\n"
5079 "RTSThreshold: %d\n"
5080 "TXMSDULifetime: %d\n"
5081 "RXMSDULifetime: %d\n"
5082 "TXDiversity: %s\n"
5083 "RXDiversity: %s\n"
5084 "FragThreshold: %d\n"
5085 "WEP: %s\n"
5086 "Modulation: %s\n"
5087 "Preamble: %s\n",
5088 le16_to_cpu(ai->config.longRetryLimit),
5089 le16_to_cpu(ai->config.shortRetryLimit),
5090 le16_to_cpu(ai->config.rtsThres),
5091 le16_to_cpu(ai->config.txLifetime),
5092 le16_to_cpu(ai->config.rxLifetime),
5093 ai->config.txDiversity == 1 ? "left" :
5094 ai->config.txDiversity == 2 ? "right" : "both",
5095 ai->config.rxDiversity == 1 ? "left" :
5096 ai->config.rxDiversity == 2 ? "right" : "both",
5097 le16_to_cpu(ai->config.fragThresh),
5098 ai->config.authType == AUTH_ENCRYPT ? "encrypt" :
5099 ai->config.authType == AUTH_SHAREDKEY ? "shared" : "open",
5100 ai->config.modulation == MOD_DEFAULT ? "default" :
5101 ai->config.modulation == MOD_CCK ? "cck" :
5102 ai->config.modulation == MOD_MOK ? "mok" : "error",
5103 ai->config.preamble == PREAMBLE_AUTO ? "auto" :
5104 ai->config.preamble == PREAMBLE_LONG ? "long" :
5105 ai->config.preamble == PREAMBLE_SHORT ? "short" : "error"
5106 );
5107 data->readlen = strlen(data->rbuffer);
5108 return 0;
5109 }
5110
proc_SSID_on_close(struct inode * inode,struct file * file)5111 static void proc_SSID_on_close(struct inode *inode, struct file *file)
5112 {
5113 struct proc_data *data = file->private_data;
5114 struct net_device *dev = PDE_DATA(inode);
5115 struct airo_info *ai = dev->ml_priv;
5116 SsidRid SSID_rid;
5117 int i;
5118 char *p = data->wbuffer;
5119 char *end = p + data->writelen;
5120
5121 if (!data->writelen)
5122 return;
5123
5124 *end = '\n'; /* sentinel; we have space for it */
5125
5126 memset(&SSID_rid, 0, sizeof(SSID_rid));
5127
5128 for (i = 0; i < 3 && p < end; i++) {
5129 int j = 0;
5130 /* copy up to 32 characters from this line */
5131 while (*p != '\n' && j < 32)
5132 SSID_rid.ssids[i].ssid[j++] = *p++;
5133 if (j == 0)
5134 break;
5135 SSID_rid.ssids[i].len = cpu_to_le16(j);
5136 /* skip to the beginning of the next line */
5137 while (*p++ != '\n')
5138 ;
5139 }
5140 if (i)
5141 SSID_rid.len = cpu_to_le16(sizeof(SSID_rid));
5142 disable_MAC(ai, 1);
5143 writeSsidRid(ai, &SSID_rid, 1);
5144 enable_MAC(ai, 1);
5145 }
5146
proc_APList_on_close(struct inode * inode,struct file * file)5147 static void proc_APList_on_close(struct inode *inode, struct file *file)
5148 {
5149 struct proc_data *data = file->private_data;
5150 struct net_device *dev = PDE_DATA(inode);
5151 struct airo_info *ai = dev->ml_priv;
5152 APListRid *APList_rid = &ai->APList;
5153 int i;
5154
5155 if (!data->writelen) return;
5156
5157 memset(APList_rid, 0, sizeof(*APList_rid));
5158 APList_rid->len = cpu_to_le16(sizeof(*APList_rid));
5159
5160 for (i = 0; i < 4 && data->writelen >= (i + 1) * 6 * 3; i++)
5161 mac_pton(data->wbuffer + i * 6 * 3, APList_rid->ap[i]);
5162
5163 disable_MAC(ai, 1);
5164 writeAPListRid(ai, APList_rid, 1);
5165 enable_MAC(ai, 1);
5166 }
5167
5168 /* 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)5169 static int do_writerid(struct airo_info *ai, u16 rid, const void *rid_data,
5170 int len, int dummy)
5171 {
5172 int rc;
5173
5174 disable_MAC(ai, 1);
5175 rc = PC4500_writerid(ai, rid, rid_data, len, 1);
5176 enable_MAC(ai, 1);
5177 return rc;
5178 }
5179
5180 /* Returns the WEP key at the specified index, or -1 if that key does
5181 * not exist. The buffer is assumed to be at least 16 bytes in length.
5182 */
get_wep_key(struct airo_info * ai,u16 index,char * buf,u16 buflen)5183 static int get_wep_key(struct airo_info *ai, u16 index, char *buf, u16 buflen)
5184 {
5185 WepKeyRid wkr;
5186 int rc;
5187 __le16 lastindex;
5188
5189 rc = readWepKeyRid(ai, &wkr, 1, 1);
5190 if (rc != SUCCESS)
5191 return -1;
5192 do {
5193 lastindex = wkr.kindex;
5194 if (le16_to_cpu(wkr.kindex) == index) {
5195 int klen = min_t(int, buflen, le16_to_cpu(wkr.klen));
5196 memcpy(buf, wkr.key, klen);
5197 return klen;
5198 }
5199 rc = readWepKeyRid(ai, &wkr, 0, 1);
5200 if (rc != SUCCESS)
5201 return -1;
5202 } while (lastindex != wkr.kindex);
5203 return -1;
5204 }
5205
get_wep_tx_idx(struct airo_info * ai)5206 static int get_wep_tx_idx(struct airo_info *ai)
5207 {
5208 WepKeyRid wkr;
5209 int rc;
5210 __le16 lastindex;
5211
5212 rc = readWepKeyRid(ai, &wkr, 1, 1);
5213 if (rc != SUCCESS)
5214 return -1;
5215 do {
5216 lastindex = wkr.kindex;
5217 if (wkr.kindex == cpu_to_le16(0xffff))
5218 return wkr.mac[0];
5219 rc = readWepKeyRid(ai, &wkr, 0, 1);
5220 if (rc != SUCCESS)
5221 return -1;
5222 } while (lastindex != wkr.kindex);
5223 return -1;
5224 }
5225
set_wep_key(struct airo_info * ai,u16 index,const char * key,u16 keylen,int perm,int lock)5226 static int set_wep_key(struct airo_info *ai, u16 index, const char *key,
5227 u16 keylen, int perm, int lock)
5228 {
5229 static const unsigned char macaddr[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 };
5230 WepKeyRid wkr;
5231 int rc;
5232
5233 if (WARN_ON(keylen == 0))
5234 return -1;
5235
5236 memset(&wkr, 0, sizeof(wkr));
5237 wkr.len = cpu_to_le16(sizeof(wkr));
5238 wkr.kindex = cpu_to_le16(index);
5239 wkr.klen = cpu_to_le16(keylen);
5240 memcpy(wkr.key, key, keylen);
5241 memcpy(wkr.mac, macaddr, ETH_ALEN);
5242
5243 if (perm) disable_MAC(ai, lock);
5244 rc = writeWepKeyRid(ai, &wkr, perm, lock);
5245 if (perm) enable_MAC(ai, lock);
5246 return rc;
5247 }
5248
set_wep_tx_idx(struct airo_info * ai,u16 index,int perm,int lock)5249 static int set_wep_tx_idx(struct airo_info *ai, u16 index, int perm, int lock)
5250 {
5251 WepKeyRid wkr;
5252 int rc;
5253
5254 memset(&wkr, 0, sizeof(wkr));
5255 wkr.len = cpu_to_le16(sizeof(wkr));
5256 wkr.kindex = cpu_to_le16(0xffff);
5257 wkr.mac[0] = (char)index;
5258
5259 if (perm) {
5260 ai->defindex = (char)index;
5261 disable_MAC(ai, lock);
5262 }
5263
5264 rc = writeWepKeyRid(ai, &wkr, perm, lock);
5265
5266 if (perm)
5267 enable_MAC(ai, lock);
5268 return rc;
5269 }
5270
proc_wepkey_on_close(struct inode * inode,struct file * file)5271 static void proc_wepkey_on_close(struct inode *inode, struct file *file)
5272 {
5273 struct proc_data *data;
5274 struct net_device *dev = PDE_DATA(inode);
5275 struct airo_info *ai = dev->ml_priv;
5276 int i, rc;
5277 char key[16];
5278 u16 index = 0;
5279 int j = 0;
5280
5281 memset(key, 0, sizeof(key));
5282
5283 data = file->private_data;
5284 if (!data->writelen) return;
5285
5286 if (data->wbuffer[0] >= '0' && data->wbuffer[0] <= '3' &&
5287 (data->wbuffer[1] == ' ' || data->wbuffer[1] == '\n')) {
5288 index = data->wbuffer[0] - '0';
5289 if (data->wbuffer[1] == '\n') {
5290 rc = set_wep_tx_idx(ai, index, 1, 1);
5291 if (rc < 0) {
5292 airo_print_err(ai->dev->name, "failed to set "
5293 "WEP transmit index to %d: %d.",
5294 index, rc);
5295 }
5296 return;
5297 }
5298 j = 2;
5299 } else {
5300 airo_print_err(ai->dev->name, "WepKey passed invalid key index");
5301 return;
5302 }
5303
5304 for (i = 0; i < 16*3 && data->wbuffer[i+j]; i++) {
5305 switch(i%3) {
5306 case 0:
5307 key[i/3] = hex_to_bin(data->wbuffer[i+j])<<4;
5308 break;
5309 case 1:
5310 key[i/3] |= hex_to_bin(data->wbuffer[i+j]);
5311 break;
5312 }
5313 }
5314
5315 rc = set_wep_key(ai, index, key, i/3, 1, 1);
5316 if (rc < 0) {
5317 airo_print_err(ai->dev->name, "failed to set WEP key at index "
5318 "%d: %d.", index, rc);
5319 }
5320 }
5321
proc_wepkey_open(struct inode * inode,struct file * file)5322 static int proc_wepkey_open(struct inode *inode, struct file *file)
5323 {
5324 struct proc_data *data;
5325 struct net_device *dev = PDE_DATA(inode);
5326 struct airo_info *ai = dev->ml_priv;
5327 char *ptr;
5328 WepKeyRid wkr;
5329 __le16 lastindex;
5330 int j = 0;
5331 int rc;
5332
5333 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5334 return -ENOMEM;
5335 memset(&wkr, 0, sizeof(wkr));
5336 data = file->private_data;
5337 if ((data->rbuffer = kzalloc(180, GFP_KERNEL)) == NULL) {
5338 kfree (file->private_data);
5339 return -ENOMEM;
5340 }
5341 data->writelen = 0;
5342 data->maxwritelen = 80;
5343 if ((data->wbuffer = kzalloc(80, GFP_KERNEL)) == NULL) {
5344 kfree (data->rbuffer);
5345 kfree (file->private_data);
5346 return -ENOMEM;
5347 }
5348 data->on_close = proc_wepkey_on_close;
5349
5350 ptr = data->rbuffer;
5351 strcpy(ptr, "No wep keys\n");
5352 rc = readWepKeyRid(ai, &wkr, 1, 1);
5353 if (rc == SUCCESS) do {
5354 lastindex = wkr.kindex;
5355 if (wkr.kindex == cpu_to_le16(0xffff)) {
5356 j += sprintf(ptr+j, "Tx key = %d\n",
5357 (int)wkr.mac[0]);
5358 } else {
5359 j += sprintf(ptr+j, "Key %d set with length = %d\n",
5360 le16_to_cpu(wkr.kindex),
5361 le16_to_cpu(wkr.klen));
5362 }
5363 readWepKeyRid(ai, &wkr, 0, 1);
5364 } while ((lastindex != wkr.kindex) && (j < 180-30));
5365
5366 data->readlen = strlen(data->rbuffer);
5367 return 0;
5368 }
5369
proc_SSID_open(struct inode * inode,struct file * file)5370 static int proc_SSID_open(struct inode *inode, struct file *file)
5371 {
5372 struct proc_data *data;
5373 struct net_device *dev = PDE_DATA(inode);
5374 struct airo_info *ai = dev->ml_priv;
5375 int i;
5376 char *ptr;
5377 SsidRid SSID_rid;
5378
5379 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5380 return -ENOMEM;
5381 data = file->private_data;
5382 if ((data->rbuffer = kmalloc(104, GFP_KERNEL)) == NULL) {
5383 kfree (file->private_data);
5384 return -ENOMEM;
5385 }
5386 data->writelen = 0;
5387 data->maxwritelen = 33*3;
5388 /* allocate maxwritelen + 1; we'll want a sentinel */
5389 if ((data->wbuffer = kzalloc(33*3 + 1, GFP_KERNEL)) == NULL) {
5390 kfree (data->rbuffer);
5391 kfree (file->private_data);
5392 return -ENOMEM;
5393 }
5394 data->on_close = proc_SSID_on_close;
5395
5396 readSsidRid(ai, &SSID_rid);
5397 ptr = data->rbuffer;
5398 for (i = 0; i < 3; i++) {
5399 int j;
5400 size_t len = le16_to_cpu(SSID_rid.ssids[i].len);
5401 if (!len)
5402 break;
5403 if (len > 32)
5404 len = 32;
5405 for (j = 0; j < len && SSID_rid.ssids[i].ssid[j]; j++)
5406 *ptr++ = SSID_rid.ssids[i].ssid[j];
5407 *ptr++ = '\n';
5408 }
5409 *ptr = '\0';
5410 data->readlen = strlen(data->rbuffer);
5411 return 0;
5412 }
5413
proc_APList_open(struct inode * inode,struct file * file)5414 static int proc_APList_open(struct inode *inode, struct file *file)
5415 {
5416 struct proc_data *data;
5417 struct net_device *dev = PDE_DATA(inode);
5418 struct airo_info *ai = dev->ml_priv;
5419 int i;
5420 char *ptr;
5421 APListRid *APList_rid = &ai->APList;
5422
5423 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5424 return -ENOMEM;
5425 data = file->private_data;
5426 if ((data->rbuffer = kmalloc(104, GFP_KERNEL)) == NULL) {
5427 kfree (file->private_data);
5428 return -ENOMEM;
5429 }
5430 data->writelen = 0;
5431 data->maxwritelen = 4*6*3;
5432 if ((data->wbuffer = kzalloc(data->maxwritelen, GFP_KERNEL)) == NULL) {
5433 kfree (data->rbuffer);
5434 kfree (file->private_data);
5435 return -ENOMEM;
5436 }
5437 data->on_close = proc_APList_on_close;
5438
5439 ptr = data->rbuffer;
5440 for (i = 0; i < 4; i++) {
5441 // We end when we find a zero MAC
5442 if (!*(int*)APList_rid->ap[i] &&
5443 !*(int*)&APList_rid->ap[i][2]) break;
5444 ptr += sprintf(ptr, "%pM\n", APList_rid->ap[i]);
5445 }
5446 if (i==0) ptr += sprintf(ptr, "Not using specific APs\n");
5447
5448 *ptr = '\0';
5449 data->readlen = strlen(data->rbuffer);
5450 return 0;
5451 }
5452
proc_BSSList_open(struct inode * inode,struct file * file)5453 static int proc_BSSList_open(struct inode *inode, struct file *file)
5454 {
5455 struct proc_data *data;
5456 struct net_device *dev = PDE_DATA(inode);
5457 struct airo_info *ai = dev->ml_priv;
5458 char *ptr;
5459 BSSListRid BSSList_rid;
5460 int rc;
5461 /* If doLoseSync is not 1, we won't do a Lose Sync */
5462 int doLoseSync = -1;
5463
5464 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5465 return -ENOMEM;
5466 data = file->private_data;
5467 if ((data->rbuffer = kmalloc(1024, GFP_KERNEL)) == NULL) {
5468 kfree (file->private_data);
5469 return -ENOMEM;
5470 }
5471 data->writelen = 0;
5472 data->maxwritelen = 0;
5473 data->wbuffer = NULL;
5474 data->on_close = NULL;
5475
5476 if (file->f_mode & FMODE_WRITE) {
5477 if (!(file->f_mode & FMODE_READ)) {
5478 Cmd cmd;
5479 Resp rsp;
5480
5481 if (ai->flags & FLAG_RADIO_MASK) {
5482 kfree(data->rbuffer);
5483 kfree(file->private_data);
5484 return -ENETDOWN;
5485 }
5486 memset(&cmd, 0, sizeof(cmd));
5487 cmd.cmd = CMD_LISTBSS;
5488 if (down_interruptible(&ai->sem)) {
5489 kfree(data->rbuffer);
5490 kfree(file->private_data);
5491 return -ERESTARTSYS;
5492 }
5493 issuecommand(ai, &cmd, &rsp);
5494 up(&ai->sem);
5495 data->readlen = 0;
5496 return 0;
5497 }
5498 doLoseSync = 1;
5499 }
5500 ptr = data->rbuffer;
5501 /* There is a race condition here if there are concurrent opens.
5502 Since it is a rare condition, we'll just live with it, otherwise
5503 we have to add a spin lock... */
5504 rc = readBSSListRid(ai, doLoseSync, &BSSList_rid);
5505 while (rc == 0 && BSSList_rid.index != cpu_to_le16(0xffff)) {
5506 ptr += sprintf(ptr, "%pM %.*s rssi = %d",
5507 BSSList_rid.bssid,
5508 (int)BSSList_rid.ssidLen,
5509 BSSList_rid.ssid,
5510 le16_to_cpu(BSSList_rid.dBm));
5511 ptr += sprintf(ptr, " channel = %d %s %s %s %s\n",
5512 le16_to_cpu(BSSList_rid.dsChannel),
5513 BSSList_rid.cap & CAP_ESS ? "ESS" : "",
5514 BSSList_rid.cap & CAP_IBSS ? "adhoc" : "",
5515 BSSList_rid.cap & CAP_PRIVACY ? "wep" : "",
5516 BSSList_rid.cap & CAP_SHORTHDR ? "shorthdr" : "");
5517 rc = readBSSListRid(ai, 0, &BSSList_rid);
5518 }
5519 *ptr = '\0';
5520 data->readlen = strlen(data->rbuffer);
5521 return 0;
5522 }
5523
proc_close(struct inode * inode,struct file * file)5524 static int proc_close(struct inode *inode, struct file *file)
5525 {
5526 struct proc_data *data = file->private_data;
5527
5528 if (data->on_close != NULL)
5529 data->on_close(inode, file);
5530 kfree(data->rbuffer);
5531 kfree(data->wbuffer);
5532 kfree(data);
5533 return 0;
5534 }
5535
5536 /* Since the card doesn't automatically switch to the right WEP mode,
5537 we will make it do it. If the card isn't associated, every secs we
5538 will switch WEP modes to see if that will help. If the card is
5539 associated we will check every minute to see if anything has
5540 changed. */
timer_func(struct net_device * dev)5541 static void timer_func(struct net_device *dev)
5542 {
5543 struct airo_info *apriv = dev->ml_priv;
5544
5545 /* We don't have a link so try changing the authtype */
5546 readConfigRid(apriv, 0);
5547 disable_MAC(apriv, 0);
5548 switch(apriv->config.authType) {
5549 case AUTH_ENCRYPT:
5550 /* So drop to OPEN */
5551 apriv->config.authType = AUTH_OPEN;
5552 break;
5553 case AUTH_SHAREDKEY:
5554 if (apriv->keyindex < auto_wep) {
5555 set_wep_tx_idx(apriv, apriv->keyindex, 0, 0);
5556 apriv->config.authType = AUTH_SHAREDKEY;
5557 apriv->keyindex++;
5558 } else {
5559 /* Drop to ENCRYPT */
5560 apriv->keyindex = 0;
5561 set_wep_tx_idx(apriv, apriv->defindex, 0, 0);
5562 apriv->config.authType = AUTH_ENCRYPT;
5563 }
5564 break;
5565 default: /* We'll escalate to SHAREDKEY */
5566 apriv->config.authType = AUTH_SHAREDKEY;
5567 }
5568 set_bit (FLAG_COMMIT, &apriv->flags);
5569 writeConfigRid(apriv, 0);
5570 enable_MAC(apriv, 0);
5571 up(&apriv->sem);
5572
5573 /* Schedule check to see if the change worked */
5574 clear_bit(JOB_AUTOWEP, &apriv->jobs);
5575 apriv->expires = RUN_AT(HZ*3);
5576 }
5577
5578 #ifdef CONFIG_PCI
airo_pci_probe(struct pci_dev * pdev,const struct pci_device_id * pent)5579 static int airo_pci_probe(struct pci_dev *pdev,
5580 const struct pci_device_id *pent)
5581 {
5582 struct net_device *dev;
5583
5584 if (pci_enable_device(pdev))
5585 return -ENODEV;
5586 pci_set_master(pdev);
5587
5588 if (pdev->device == 0x5000 || pdev->device == 0xa504)
5589 dev = _init_airo_card(pdev->irq, pdev->resource[0].start, 0, pdev, &pdev->dev);
5590 else
5591 dev = _init_airo_card(pdev->irq, pdev->resource[2].start, 0, pdev, &pdev->dev);
5592 if (!dev) {
5593 pci_disable_device(pdev);
5594 return -ENODEV;
5595 }
5596
5597 pci_set_drvdata(pdev, dev);
5598 return 0;
5599 }
5600
airo_pci_remove(struct pci_dev * pdev)5601 static void airo_pci_remove(struct pci_dev *pdev)
5602 {
5603 struct net_device *dev = pci_get_drvdata(pdev);
5604
5605 airo_print_info(dev->name, "Unregistering...");
5606 stop_airo_card(dev, 1);
5607 pci_disable_device(pdev);
5608 }
5609
airo_pci_suspend(struct device * dev_d)5610 static int __maybe_unused airo_pci_suspend(struct device *dev_d)
5611 {
5612 struct net_device *dev = dev_get_drvdata(dev_d);
5613 struct airo_info *ai = dev->ml_priv;
5614 Cmd cmd;
5615 Resp rsp;
5616
5617 if (!ai->SSID)
5618 ai->SSID = kmalloc(sizeof(SsidRid), GFP_KERNEL);
5619 if (!ai->SSID)
5620 return -ENOMEM;
5621 readSsidRid(ai, ai->SSID);
5622 memset(&cmd, 0, sizeof(cmd));
5623 /* the lock will be released at the end of the resume callback */
5624 if (down_interruptible(&ai->sem))
5625 return -EAGAIN;
5626 disable_MAC(ai, 0);
5627 netif_device_detach(dev);
5628 ai->power = PMSG_SUSPEND;
5629 cmd.cmd = HOSTSLEEP;
5630 issuecommand(ai, &cmd, &rsp);
5631
5632 device_wakeup_enable(dev_d);
5633 return 0;
5634 }
5635
airo_pci_resume(struct device * dev_d)5636 static int __maybe_unused airo_pci_resume(struct device *dev_d)
5637 {
5638 struct net_device *dev = dev_get_drvdata(dev_d);
5639 struct airo_info *ai = dev->ml_priv;
5640 pci_power_t prev_state = to_pci_dev(dev_d)->current_state;
5641
5642 device_wakeup_disable(dev_d);
5643
5644 if (prev_state != PCI_D1) {
5645 reset_card(dev, 0);
5646 mpi_init_descriptors(ai);
5647 setup_card(ai, dev->dev_addr, 0);
5648 clear_bit(FLAG_RADIO_OFF, &ai->flags);
5649 clear_bit(FLAG_PENDING_XMIT, &ai->flags);
5650 } else {
5651 OUT4500(ai, EVACK, EV_AWAKEN);
5652 OUT4500(ai, EVACK, EV_AWAKEN);
5653 msleep(100);
5654 }
5655
5656 set_bit(FLAG_COMMIT, &ai->flags);
5657 disable_MAC(ai, 0);
5658 msleep(200);
5659 if (ai->SSID) {
5660 writeSsidRid(ai, ai->SSID, 0);
5661 kfree(ai->SSID);
5662 ai->SSID = NULL;
5663 }
5664 writeAPListRid(ai, &ai->APList, 0);
5665 writeConfigRid(ai, 0);
5666 enable_MAC(ai, 0);
5667 ai->power = PMSG_ON;
5668 netif_device_attach(dev);
5669 netif_wake_queue(dev);
5670 enable_interrupts(ai);
5671 up(&ai->sem);
5672 return 0;
5673 }
5674 #endif
5675
airo_init_module(void)5676 static int __init airo_init_module(void)
5677 {
5678 int i;
5679
5680 proc_kuid = make_kuid(&init_user_ns, proc_uid);
5681 proc_kgid = make_kgid(&init_user_ns, proc_gid);
5682 if (!uid_valid(proc_kuid) || !gid_valid(proc_kgid))
5683 return -EINVAL;
5684
5685 airo_entry = proc_mkdir_mode("driver/aironet", airo_perm, NULL);
5686
5687 if (airo_entry)
5688 proc_set_user(airo_entry, proc_kuid, proc_kgid);
5689
5690 for (i = 0; i < 4 && io[i] && irq[i]; i++) {
5691 airo_print_info("", "Trying to configure ISA adapter at irq=%d "
5692 "io = 0x%x", irq[i], io[i]);
5693 if (init_airo_card(irq[i], io[i], 0, NULL)) {
5694 /* do nothing */ ;
5695 }
5696 }
5697
5698 #ifdef CONFIG_PCI
5699 airo_print_info("", "Probing for PCI adapters");
5700 i = pci_register_driver(&airo_driver);
5701 airo_print_info("", "Finished probing for PCI adapters");
5702
5703 if (i) {
5704 remove_proc_entry("driver/aironet", NULL);
5705 return i;
5706 }
5707 #endif
5708
5709 /* Always exit with success, as we are a library module
5710 * as well as a driver module
5711 */
5712 return 0;
5713 }
5714
airo_cleanup_module(void)5715 static void __exit airo_cleanup_module(void)
5716 {
5717 struct airo_info *ai;
5718 while (!list_empty(&airo_devices)) {
5719 ai = list_entry(airo_devices.next, struct airo_info, dev_list);
5720 airo_print_info(ai->dev->name, "Unregistering...");
5721 stop_airo_card(ai->dev, 1);
5722 }
5723 #ifdef CONFIG_PCI
5724 pci_unregister_driver(&airo_driver);
5725 #endif
5726 remove_proc_entry("driver/aironet", NULL);
5727 }
5728
5729 /*
5730 * Initial Wireless Extension code for Aironet driver by :
5731 * Jean Tourrilhes <jt@hpl.hp.com> - HPL - 17 November 00
5732 * Conversion to new driver API by :
5733 * Jean Tourrilhes <jt@hpl.hp.com> - HPL - 26 March 02
5734 * Javier also did a good amount of work here, adding some new extensions
5735 * and fixing my code. Let's just say that without him this code just
5736 * would not work at all... - Jean II
5737 */
5738
airo_rssi_to_dbm(tdsRssiEntry * rssi_rid,u8 rssi)5739 static u8 airo_rssi_to_dbm (tdsRssiEntry *rssi_rid, u8 rssi)
5740 {
5741 if (!rssi_rid)
5742 return 0;
5743
5744 return (0x100 - rssi_rid[rssi].rssidBm);
5745 }
5746
airo_dbm_to_pct(tdsRssiEntry * rssi_rid,u8 dbm)5747 static u8 airo_dbm_to_pct (tdsRssiEntry *rssi_rid, u8 dbm)
5748 {
5749 int i;
5750
5751 if (!rssi_rid)
5752 return 0;
5753
5754 for (i = 0; i < 256; i++)
5755 if (rssi_rid[i].rssidBm == dbm)
5756 return rssi_rid[i].rssipct;
5757
5758 return 0;
5759 }
5760
5761
airo_get_quality(StatusRid * status_rid,CapabilityRid * cap_rid)5762 static int airo_get_quality (StatusRid *status_rid, CapabilityRid *cap_rid)
5763 {
5764 int quality = 0;
5765 u16 sq;
5766
5767 if ((status_rid->mode & cpu_to_le16(0x3f)) != cpu_to_le16(0x3f))
5768 return 0;
5769
5770 if (!(cap_rid->hardCap & cpu_to_le16(8)))
5771 return 0;
5772
5773 sq = le16_to_cpu(status_rid->signalQuality);
5774 if (memcmp(cap_rid->prodName, "350", 3))
5775 if (sq > 0x20)
5776 quality = 0;
5777 else
5778 quality = 0x20 - sq;
5779 else
5780 if (sq > 0xb0)
5781 quality = 0;
5782 else if (sq < 0x10)
5783 quality = 0xa0;
5784 else
5785 quality = 0xb0 - sq;
5786 return quality;
5787 }
5788
5789 #define airo_get_max_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x20 : 0xa0)
5790 #define airo_get_avg_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x10 : 0x50);
5791
5792 /*------------------------------------------------------------------*/
5793 /*
5794 * Wireless Handler : get protocol name
5795 */
airo_get_name(struct net_device * dev,struct iw_request_info * info,char * cwrq,char * extra)5796 static int airo_get_name(struct net_device *dev,
5797 struct iw_request_info *info,
5798 char *cwrq,
5799 char *extra)
5800 {
5801 strcpy(cwrq, "IEEE 802.11-DS");
5802 return 0;
5803 }
5804
5805 /*------------------------------------------------------------------*/
5806 /*
5807 * Wireless Handler : set frequency
5808 */
airo_set_freq(struct net_device * dev,struct iw_request_info * info,struct iw_freq * fwrq,char * extra)5809 static int airo_set_freq(struct net_device *dev,
5810 struct iw_request_info *info,
5811 struct iw_freq *fwrq,
5812 char *extra)
5813 {
5814 struct airo_info *local = dev->ml_priv;
5815 int rc = -EINPROGRESS; /* Call commit handler */
5816
5817 /* If setting by frequency, convert to a channel */
5818 if (fwrq->e == 1) {
5819 int f = fwrq->m / 100000;
5820
5821 /* Hack to fall through... */
5822 fwrq->e = 0;
5823 fwrq->m = ieee80211_frequency_to_channel(f);
5824 }
5825 /* Setting by channel number */
5826 if (fwrq->m < 0 || fwrq->m > 1000 || fwrq->e > 0)
5827 rc = -EOPNOTSUPP;
5828 else {
5829 int channel = fwrq->m;
5830 /* We should do a better check than that,
5831 * based on the card capability !!! */
5832 if ((channel < 1) || (channel > 14)) {
5833 airo_print_dbg(dev->name, "New channel value of %d is invalid!",
5834 fwrq->m);
5835 rc = -EINVAL;
5836 } else {
5837 readConfigRid(local, 1);
5838 /* Yes ! We can set it !!! */
5839 local->config.channelSet = cpu_to_le16(channel);
5840 set_bit (FLAG_COMMIT, &local->flags);
5841 }
5842 }
5843 return rc;
5844 }
5845
5846 /*------------------------------------------------------------------*/
5847 /*
5848 * Wireless Handler : get frequency
5849 */
airo_get_freq(struct net_device * dev,struct iw_request_info * info,struct iw_freq * fwrq,char * extra)5850 static int airo_get_freq(struct net_device *dev,
5851 struct iw_request_info *info,
5852 struct iw_freq *fwrq,
5853 char *extra)
5854 {
5855 struct airo_info *local = dev->ml_priv;
5856 StatusRid status_rid; /* Card status info */
5857 int ch;
5858
5859 readConfigRid(local, 1);
5860 if ((local->config.opmode & MODE_CFG_MASK) == MODE_STA_ESS)
5861 status_rid.channel = local->config.channelSet;
5862 else
5863 readStatusRid(local, &status_rid, 1);
5864
5865 ch = le16_to_cpu(status_rid.channel);
5866 if ((ch > 0) && (ch < 15)) {
5867 fwrq->m = 100000 *
5868 ieee80211_channel_to_frequency(ch, NL80211_BAND_2GHZ);
5869 fwrq->e = 1;
5870 } else {
5871 fwrq->m = ch;
5872 fwrq->e = 0;
5873 }
5874
5875 return 0;
5876 }
5877
5878 /*------------------------------------------------------------------*/
5879 /*
5880 * Wireless Handler : set ESSID
5881 */
airo_set_essid(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)5882 static int airo_set_essid(struct net_device *dev,
5883 struct iw_request_info *info,
5884 struct iw_point *dwrq,
5885 char *extra)
5886 {
5887 struct airo_info *local = dev->ml_priv;
5888 SsidRid SSID_rid; /* SSIDs */
5889
5890 /* Reload the list of current SSID */
5891 readSsidRid(local, &SSID_rid);
5892
5893 /* Check if we asked for `any' */
5894 if (dwrq->flags == 0) {
5895 /* Just send an empty SSID list */
5896 memset(&SSID_rid, 0, sizeof(SSID_rid));
5897 } else {
5898 unsigned index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
5899
5900 /* Check the size of the string */
5901 if (dwrq->length > IW_ESSID_MAX_SIZE)
5902 return -E2BIG ;
5903
5904 /* Check if index is valid */
5905 if (index >= ARRAY_SIZE(SSID_rid.ssids))
5906 return -EINVAL;
5907
5908 /* Set the SSID */
5909 memset(SSID_rid.ssids[index].ssid, 0,
5910 sizeof(SSID_rid.ssids[index].ssid));
5911 memcpy(SSID_rid.ssids[index].ssid, extra, dwrq->length);
5912 SSID_rid.ssids[index].len = cpu_to_le16(dwrq->length);
5913 }
5914 SSID_rid.len = cpu_to_le16(sizeof(SSID_rid));
5915 /* Write it to the card */
5916 disable_MAC(local, 1);
5917 writeSsidRid(local, &SSID_rid, 1);
5918 enable_MAC(local, 1);
5919
5920 return 0;
5921 }
5922
5923 /*------------------------------------------------------------------*/
5924 /*
5925 * Wireless Handler : get ESSID
5926 */
airo_get_essid(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)5927 static int airo_get_essid(struct net_device *dev,
5928 struct iw_request_info *info,
5929 struct iw_point *dwrq,
5930 char *extra)
5931 {
5932 struct airo_info *local = dev->ml_priv;
5933 StatusRid status_rid; /* Card status info */
5934
5935 readStatusRid(local, &status_rid, 1);
5936
5937 /* Note : if dwrq->flags != 0, we should
5938 * get the relevant SSID from the SSID list... */
5939
5940 /* Get the current SSID */
5941 memcpy(extra, status_rid.SSID, le16_to_cpu(status_rid.SSIDlen));
5942 /* If none, we may want to get the one that was set */
5943
5944 /* Push it out ! */
5945 dwrq->length = le16_to_cpu(status_rid.SSIDlen);
5946 dwrq->flags = 1; /* active */
5947
5948 return 0;
5949 }
5950
5951 /*------------------------------------------------------------------*/
5952 /*
5953 * Wireless Handler : set AP address
5954 */
airo_set_wap(struct net_device * dev,struct iw_request_info * info,struct sockaddr * awrq,char * extra)5955 static int airo_set_wap(struct net_device *dev,
5956 struct iw_request_info *info,
5957 struct sockaddr *awrq,
5958 char *extra)
5959 {
5960 struct airo_info *local = dev->ml_priv;
5961 Cmd cmd;
5962 Resp rsp;
5963 APListRid *APList_rid = &local->APList;
5964
5965 if (awrq->sa_family != ARPHRD_ETHER)
5966 return -EINVAL;
5967 else if (is_broadcast_ether_addr(awrq->sa_data) ||
5968 is_zero_ether_addr(awrq->sa_data)) {
5969 memset(&cmd, 0, sizeof(cmd));
5970 cmd.cmd = CMD_LOSE_SYNC;
5971 if (down_interruptible(&local->sem))
5972 return -ERESTARTSYS;
5973 issuecommand(local, &cmd, &rsp);
5974 up(&local->sem);
5975 } else {
5976 memset(APList_rid, 0, sizeof(*APList_rid));
5977 APList_rid->len = cpu_to_le16(sizeof(*APList_rid));
5978 memcpy(APList_rid->ap[0], awrq->sa_data, ETH_ALEN);
5979 disable_MAC(local, 1);
5980 writeAPListRid(local, APList_rid, 1);
5981 enable_MAC(local, 1);
5982 }
5983 return 0;
5984 }
5985
5986 /*------------------------------------------------------------------*/
5987 /*
5988 * Wireless Handler : get AP address
5989 */
airo_get_wap(struct net_device * dev,struct iw_request_info * info,struct sockaddr * awrq,char * extra)5990 static int airo_get_wap(struct net_device *dev,
5991 struct iw_request_info *info,
5992 struct sockaddr *awrq,
5993 char *extra)
5994 {
5995 struct airo_info *local = dev->ml_priv;
5996 StatusRid status_rid; /* Card status info */
5997
5998 readStatusRid(local, &status_rid, 1);
5999
6000 /* Tentative. This seems to work, wow, I'm lucky !!! */
6001 memcpy(awrq->sa_data, status_rid.bssid[0], ETH_ALEN);
6002 awrq->sa_family = ARPHRD_ETHER;
6003
6004 return 0;
6005 }
6006
6007 /*------------------------------------------------------------------*/
6008 /*
6009 * Wireless Handler : set Nickname
6010 */
airo_set_nick(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6011 static int airo_set_nick(struct net_device *dev,
6012 struct iw_request_info *info,
6013 struct iw_point *dwrq,
6014 char *extra)
6015 {
6016 struct airo_info *local = dev->ml_priv;
6017
6018 /* Check the size of the string */
6019 if (dwrq->length > 16) {
6020 return -E2BIG;
6021 }
6022 readConfigRid(local, 1);
6023 memset(local->config.nodeName, 0, sizeof(local->config.nodeName));
6024 memcpy(local->config.nodeName, extra, dwrq->length);
6025 set_bit (FLAG_COMMIT, &local->flags);
6026
6027 return -EINPROGRESS; /* Call commit handler */
6028 }
6029
6030 /*------------------------------------------------------------------*/
6031 /*
6032 * Wireless Handler : get Nickname
6033 */
airo_get_nick(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6034 static int airo_get_nick(struct net_device *dev,
6035 struct iw_request_info *info,
6036 struct iw_point *dwrq,
6037 char *extra)
6038 {
6039 struct airo_info *local = dev->ml_priv;
6040
6041 readConfigRid(local, 1);
6042 strncpy(extra, local->config.nodeName, 16);
6043 extra[16] = '\0';
6044 dwrq->length = strlen(extra);
6045
6046 return 0;
6047 }
6048
6049 /*------------------------------------------------------------------*/
6050 /*
6051 * Wireless Handler : set Bit-Rate
6052 */
airo_set_rate(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6053 static int airo_set_rate(struct net_device *dev,
6054 struct iw_request_info *info,
6055 struct iw_param *vwrq,
6056 char *extra)
6057 {
6058 struct airo_info *local = dev->ml_priv;
6059 CapabilityRid cap_rid; /* Card capability info */
6060 u8 brate = 0;
6061 int i;
6062
6063 /* First : get a valid bit rate value */
6064 readCapabilityRid(local, &cap_rid, 1);
6065
6066 /* Which type of value ? */
6067 if ((vwrq->value < 8) && (vwrq->value >= 0)) {
6068 /* Setting by rate index */
6069 /* Find value in the magic rate table */
6070 brate = cap_rid.supportedRates[vwrq->value];
6071 } else {
6072 /* Setting by frequency value */
6073 u8 normvalue = (u8) (vwrq->value/500000);
6074
6075 /* Check if rate is valid */
6076 for (i = 0 ; i < 8 ; i++) {
6077 if (normvalue == cap_rid.supportedRates[i]) {
6078 brate = normvalue;
6079 break;
6080 }
6081 }
6082 }
6083 /* -1 designed the max rate (mostly auto mode) */
6084 if (vwrq->value == -1) {
6085 /* Get the highest available rate */
6086 for (i = 0 ; i < 8 ; i++) {
6087 if (cap_rid.supportedRates[i] == 0)
6088 break;
6089 }
6090 if (i != 0)
6091 brate = cap_rid.supportedRates[i - 1];
6092 }
6093 /* Check that it is valid */
6094 if (brate == 0) {
6095 return -EINVAL;
6096 }
6097
6098 readConfigRid(local, 1);
6099 /* Now, check if we want a fixed or auto value */
6100 if (vwrq->fixed == 0) {
6101 /* Fill all the rates up to this max rate */
6102 memset(local->config.rates, 0, 8);
6103 for (i = 0 ; i < 8 ; i++) {
6104 local->config.rates[i] = cap_rid.supportedRates[i];
6105 if (local->config.rates[i] == brate)
6106 break;
6107 }
6108 } else {
6109 /* Fixed mode */
6110 /* One rate, fixed */
6111 memset(local->config.rates, 0, 8);
6112 local->config.rates[0] = brate;
6113 }
6114 set_bit (FLAG_COMMIT, &local->flags);
6115
6116 return -EINPROGRESS; /* Call commit handler */
6117 }
6118
6119 /*------------------------------------------------------------------*/
6120 /*
6121 * Wireless Handler : get Bit-Rate
6122 */
airo_get_rate(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6123 static int airo_get_rate(struct net_device *dev,
6124 struct iw_request_info *info,
6125 struct iw_param *vwrq,
6126 char *extra)
6127 {
6128 struct airo_info *local = dev->ml_priv;
6129 StatusRid status_rid; /* Card status info */
6130
6131 readStatusRid(local, &status_rid, 1);
6132
6133 vwrq->value = le16_to_cpu(status_rid.currentXmitRate) * 500000;
6134 /* If more than one rate, set auto */
6135 readConfigRid(local, 1);
6136 vwrq->fixed = (local->config.rates[1] == 0);
6137
6138 return 0;
6139 }
6140
6141 /*------------------------------------------------------------------*/
6142 /*
6143 * Wireless Handler : set RTS threshold
6144 */
airo_set_rts(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6145 static int airo_set_rts(struct net_device *dev,
6146 struct iw_request_info *info,
6147 struct iw_param *vwrq,
6148 char *extra)
6149 {
6150 struct airo_info *local = dev->ml_priv;
6151 int rthr = vwrq->value;
6152
6153 if (vwrq->disabled)
6154 rthr = AIRO_DEF_MTU;
6155 if ((rthr < 0) || (rthr > AIRO_DEF_MTU)) {
6156 return -EINVAL;
6157 }
6158 readConfigRid(local, 1);
6159 local->config.rtsThres = cpu_to_le16(rthr);
6160 set_bit (FLAG_COMMIT, &local->flags);
6161
6162 return -EINPROGRESS; /* Call commit handler */
6163 }
6164
6165 /*------------------------------------------------------------------*/
6166 /*
6167 * Wireless Handler : get RTS threshold
6168 */
airo_get_rts(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6169 static int airo_get_rts(struct net_device *dev,
6170 struct iw_request_info *info,
6171 struct iw_param *vwrq,
6172 char *extra)
6173 {
6174 struct airo_info *local = dev->ml_priv;
6175
6176 readConfigRid(local, 1);
6177 vwrq->value = le16_to_cpu(local->config.rtsThres);
6178 vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU);
6179 vwrq->fixed = 1;
6180
6181 return 0;
6182 }
6183
6184 /*------------------------------------------------------------------*/
6185 /*
6186 * Wireless Handler : set Fragmentation threshold
6187 */
airo_set_frag(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6188 static int airo_set_frag(struct net_device *dev,
6189 struct iw_request_info *info,
6190 struct iw_param *vwrq,
6191 char *extra)
6192 {
6193 struct airo_info *local = dev->ml_priv;
6194 int fthr = vwrq->value;
6195
6196 if (vwrq->disabled)
6197 fthr = AIRO_DEF_MTU;
6198 if ((fthr < 256) || (fthr > AIRO_DEF_MTU)) {
6199 return -EINVAL;
6200 }
6201 fthr &= ~0x1; /* Get an even value - is it really needed ??? */
6202 readConfigRid(local, 1);
6203 local->config.fragThresh = cpu_to_le16(fthr);
6204 set_bit (FLAG_COMMIT, &local->flags);
6205
6206 return -EINPROGRESS; /* Call commit handler */
6207 }
6208
6209 /*------------------------------------------------------------------*/
6210 /*
6211 * Wireless Handler : get Fragmentation threshold
6212 */
airo_get_frag(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6213 static int airo_get_frag(struct net_device *dev,
6214 struct iw_request_info *info,
6215 struct iw_param *vwrq,
6216 char *extra)
6217 {
6218 struct airo_info *local = dev->ml_priv;
6219
6220 readConfigRid(local, 1);
6221 vwrq->value = le16_to_cpu(local->config.fragThresh);
6222 vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU);
6223 vwrq->fixed = 1;
6224
6225 return 0;
6226 }
6227
6228 /*------------------------------------------------------------------*/
6229 /*
6230 * Wireless Handler : set Mode of Operation
6231 */
airo_set_mode(struct net_device * dev,struct iw_request_info * info,__u32 * uwrq,char * extra)6232 static int airo_set_mode(struct net_device *dev,
6233 struct iw_request_info *info,
6234 __u32 *uwrq,
6235 char *extra)
6236 {
6237 struct airo_info *local = dev->ml_priv;
6238 int reset = 0;
6239
6240 readConfigRid(local, 1);
6241 if (sniffing_mode(local))
6242 reset = 1;
6243
6244 switch(*uwrq) {
6245 case IW_MODE_ADHOC:
6246 local->config.opmode &= ~MODE_CFG_MASK;
6247 local->config.opmode |= MODE_STA_IBSS;
6248 local->config.rmode &= ~RXMODE_FULL_MASK;
6249 local->config.scanMode = SCANMODE_ACTIVE;
6250 clear_bit (FLAG_802_11, &local->flags);
6251 break;
6252 case IW_MODE_INFRA:
6253 local->config.opmode &= ~MODE_CFG_MASK;
6254 local->config.opmode |= MODE_STA_ESS;
6255 local->config.rmode &= ~RXMODE_FULL_MASK;
6256 local->config.scanMode = SCANMODE_ACTIVE;
6257 clear_bit (FLAG_802_11, &local->flags);
6258 break;
6259 case IW_MODE_MASTER:
6260 local->config.opmode &= ~MODE_CFG_MASK;
6261 local->config.opmode |= MODE_AP;
6262 local->config.rmode &= ~RXMODE_FULL_MASK;
6263 local->config.scanMode = SCANMODE_ACTIVE;
6264 clear_bit (FLAG_802_11, &local->flags);
6265 break;
6266 case IW_MODE_REPEAT:
6267 local->config.opmode &= ~MODE_CFG_MASK;
6268 local->config.opmode |= MODE_AP_RPTR;
6269 local->config.rmode &= ~RXMODE_FULL_MASK;
6270 local->config.scanMode = SCANMODE_ACTIVE;
6271 clear_bit (FLAG_802_11, &local->flags);
6272 break;
6273 case IW_MODE_MONITOR:
6274 local->config.opmode &= ~MODE_CFG_MASK;
6275 local->config.opmode |= MODE_STA_ESS;
6276 local->config.rmode &= ~RXMODE_FULL_MASK;
6277 local->config.rmode |= RXMODE_RFMON | RXMODE_DISABLE_802_3_HEADER;
6278 local->config.scanMode = SCANMODE_PASSIVE;
6279 set_bit (FLAG_802_11, &local->flags);
6280 break;
6281 default:
6282 return -EINVAL;
6283 }
6284 if (reset)
6285 set_bit (FLAG_RESET, &local->flags);
6286 set_bit (FLAG_COMMIT, &local->flags);
6287
6288 return -EINPROGRESS; /* Call commit handler */
6289 }
6290
6291 /*------------------------------------------------------------------*/
6292 /*
6293 * Wireless Handler : get Mode of Operation
6294 */
airo_get_mode(struct net_device * dev,struct iw_request_info * info,__u32 * uwrq,char * extra)6295 static int airo_get_mode(struct net_device *dev,
6296 struct iw_request_info *info,
6297 __u32 *uwrq,
6298 char *extra)
6299 {
6300 struct airo_info *local = dev->ml_priv;
6301
6302 readConfigRid(local, 1);
6303 /* If not managed, assume it's ad-hoc */
6304 switch (local->config.opmode & MODE_CFG_MASK) {
6305 case MODE_STA_ESS:
6306 *uwrq = IW_MODE_INFRA;
6307 break;
6308 case MODE_AP:
6309 *uwrq = IW_MODE_MASTER;
6310 break;
6311 case MODE_AP_RPTR:
6312 *uwrq = IW_MODE_REPEAT;
6313 break;
6314 default:
6315 *uwrq = IW_MODE_ADHOC;
6316 }
6317
6318 return 0;
6319 }
6320
valid_index(struct airo_info * ai,int index)6321 static inline int valid_index(struct airo_info *ai, int index)
6322 {
6323 return (index >= 0) && (index <= ai->max_wep_idx);
6324 }
6325
6326 /*------------------------------------------------------------------*/
6327 /*
6328 * Wireless Handler : set Encryption Key
6329 */
airo_set_encode(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6330 static int airo_set_encode(struct net_device *dev,
6331 struct iw_request_info *info,
6332 struct iw_point *dwrq,
6333 char *extra)
6334 {
6335 struct airo_info *local = dev->ml_priv;
6336 int perm = (dwrq->flags & IW_ENCODE_TEMP ? 0 : 1);
6337 __le16 currentAuthType = local->config.authType;
6338 int rc = 0;
6339
6340 if (!local->wep_capable)
6341 return -EOPNOTSUPP;
6342
6343 readConfigRid(local, 1);
6344
6345 /* Basic checking: do we have a key to set ?
6346 * Note : with the new API, it's impossible to get a NULL pointer.
6347 * Therefore, we need to check a key size == 0 instead.
6348 * New version of iwconfig properly set the IW_ENCODE_NOKEY flag
6349 * when no key is present (only change flags), but older versions
6350 * don't do it. - Jean II */
6351 if (dwrq->length > 0) {
6352 wep_key_t key;
6353 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6354 int current_index;
6355
6356 /* Check the size of the key */
6357 if (dwrq->length > MAX_KEY_SIZE) {
6358 return -EINVAL;
6359 }
6360
6361 current_index = get_wep_tx_idx(local);
6362 if (current_index < 0)
6363 current_index = 0;
6364
6365 /* Check the index (none -> use current) */
6366 if (!valid_index(local, index))
6367 index = current_index;
6368
6369 /* Set the length */
6370 if (dwrq->length > MIN_KEY_SIZE)
6371 key.len = MAX_KEY_SIZE;
6372 else
6373 key.len = MIN_KEY_SIZE;
6374 /* Check if the key is not marked as invalid */
6375 if (!(dwrq->flags & IW_ENCODE_NOKEY)) {
6376 /* Cleanup */
6377 memset(key.key, 0, MAX_KEY_SIZE);
6378 /* Copy the key in the driver */
6379 memcpy(key.key, extra, dwrq->length);
6380 /* Send the key to the card */
6381 rc = set_wep_key(local, index, key.key, key.len, perm, 1);
6382 if (rc < 0) {
6383 airo_print_err(local->dev->name, "failed to set"
6384 " WEP key at index %d: %d.",
6385 index, rc);
6386 return rc;
6387 }
6388 }
6389 /* WE specify that if a valid key is set, encryption
6390 * should be enabled (user may turn it off later)
6391 * This is also how "iwconfig ethX key on" works */
6392 if ((index == current_index) && (key.len > 0) &&
6393 (local->config.authType == AUTH_OPEN))
6394 set_auth_type(local, AUTH_ENCRYPT);
6395 } else {
6396 /* Do we want to just set the transmit key index ? */
6397 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6398 if (valid_index(local, index)) {
6399 rc = set_wep_tx_idx(local, index, perm, 1);
6400 if (rc < 0) {
6401 airo_print_err(local->dev->name, "failed to set"
6402 " WEP transmit index to %d: %d.",
6403 index, rc);
6404 return rc;
6405 }
6406 } else {
6407 /* Don't complain if only change the mode */
6408 if (!(dwrq->flags & IW_ENCODE_MODE))
6409 return -EINVAL;
6410 }
6411 }
6412 /* Read the flags */
6413 if (dwrq->flags & IW_ENCODE_DISABLED)
6414 set_auth_type(local, AUTH_OPEN); /* disable encryption */
6415 if (dwrq->flags & IW_ENCODE_RESTRICTED)
6416 set_auth_type(local, AUTH_SHAREDKEY); /* Only Both */
6417 if (dwrq->flags & IW_ENCODE_OPEN)
6418 set_auth_type(local, AUTH_ENCRYPT); /* Only Wep */
6419 /* Commit the changes to flags if needed */
6420 if (local->config.authType != currentAuthType)
6421 set_bit (FLAG_COMMIT, &local->flags);
6422 return -EINPROGRESS; /* Call commit handler */
6423 }
6424
6425 /*------------------------------------------------------------------*/
6426 /*
6427 * Wireless Handler : get Encryption Key
6428 */
airo_get_encode(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6429 static int airo_get_encode(struct net_device *dev,
6430 struct iw_request_info *info,
6431 struct iw_point *dwrq,
6432 char *extra)
6433 {
6434 struct airo_info *local = dev->ml_priv;
6435 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6436 int wep_key_len;
6437 u8 buf[16];
6438
6439 if (!local->wep_capable)
6440 return -EOPNOTSUPP;
6441
6442 readConfigRid(local, 1);
6443
6444 /* Check encryption mode */
6445 switch(local->config.authType) {
6446 case AUTH_ENCRYPT:
6447 dwrq->flags = IW_ENCODE_OPEN;
6448 break;
6449 case AUTH_SHAREDKEY:
6450 dwrq->flags = IW_ENCODE_RESTRICTED;
6451 break;
6452 default:
6453 case AUTH_OPEN:
6454 dwrq->flags = IW_ENCODE_DISABLED;
6455 break;
6456 }
6457 /* We can't return the key, so set the proper flag and return zero */
6458 dwrq->flags |= IW_ENCODE_NOKEY;
6459 memset(extra, 0, 16);
6460
6461 /* Which key do we want ? -1 -> tx index */
6462 if (!valid_index(local, index)) {
6463 index = get_wep_tx_idx(local);
6464 if (index < 0)
6465 index = 0;
6466 }
6467 dwrq->flags |= index + 1;
6468
6469 /* Copy the key to the user buffer */
6470 wep_key_len = get_wep_key(local, index, &buf[0], sizeof(buf));
6471 if (wep_key_len < 0) {
6472 dwrq->length = 0;
6473 } else {
6474 dwrq->length = wep_key_len;
6475 memcpy(extra, buf, dwrq->length);
6476 }
6477
6478 return 0;
6479 }
6480
6481 /*------------------------------------------------------------------*/
6482 /*
6483 * Wireless Handler : set extended Encryption parameters
6484 */
airo_set_encodeext(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6485 static int airo_set_encodeext(struct net_device *dev,
6486 struct iw_request_info *info,
6487 union iwreq_data *wrqu,
6488 char *extra)
6489 {
6490 struct airo_info *local = dev->ml_priv;
6491 struct iw_point *encoding = &wrqu->encoding;
6492 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6493 int perm = (encoding->flags & IW_ENCODE_TEMP ? 0 : 1);
6494 __le16 currentAuthType = local->config.authType;
6495 int idx, key_len, alg = ext->alg, set_key = 1, rc;
6496 wep_key_t key;
6497
6498 if (!local->wep_capable)
6499 return -EOPNOTSUPP;
6500
6501 readConfigRid(local, 1);
6502
6503 /* Determine and validate the key index */
6504 idx = encoding->flags & IW_ENCODE_INDEX;
6505 if (idx) {
6506 if (!valid_index(local, idx - 1))
6507 return -EINVAL;
6508 idx--;
6509 } else {
6510 idx = get_wep_tx_idx(local);
6511 if (idx < 0)
6512 idx = 0;
6513 }
6514
6515 if (encoding->flags & IW_ENCODE_DISABLED)
6516 alg = IW_ENCODE_ALG_NONE;
6517
6518 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
6519 /* Only set transmit key index here, actual
6520 * key is set below if needed.
6521 */
6522 rc = set_wep_tx_idx(local, idx, perm, 1);
6523 if (rc < 0) {
6524 airo_print_err(local->dev->name, "failed to set "
6525 "WEP transmit index to %d: %d.",
6526 idx, rc);
6527 return rc;
6528 }
6529 set_key = ext->key_len > 0 ? 1 : 0;
6530 }
6531
6532 if (set_key) {
6533 /* Set the requested key first */
6534 memset(key.key, 0, MAX_KEY_SIZE);
6535 switch (alg) {
6536 case IW_ENCODE_ALG_NONE:
6537 key.len = 0;
6538 break;
6539 case IW_ENCODE_ALG_WEP:
6540 if (ext->key_len > MIN_KEY_SIZE) {
6541 key.len = MAX_KEY_SIZE;
6542 } else if (ext->key_len > 0) {
6543 key.len = MIN_KEY_SIZE;
6544 } else {
6545 return -EINVAL;
6546 }
6547 key_len = min (ext->key_len, key.len);
6548 memcpy(key.key, ext->key, key_len);
6549 break;
6550 default:
6551 return -EINVAL;
6552 }
6553 if (key.len == 0) {
6554 rc = set_wep_tx_idx(local, idx, perm, 1);
6555 if (rc < 0) {
6556 airo_print_err(local->dev->name,
6557 "failed to set WEP transmit index to %d: %d.",
6558 idx, rc);
6559 return rc;
6560 }
6561 } else {
6562 rc = set_wep_key(local, idx, key.key, key.len, perm, 1);
6563 if (rc < 0) {
6564 airo_print_err(local->dev->name,
6565 "failed to set WEP key at index %d: %d.",
6566 idx, rc);
6567 return rc;
6568 }
6569 }
6570 }
6571
6572 /* Read the flags */
6573 if (encoding->flags & IW_ENCODE_DISABLED)
6574 set_auth_type(local, AUTH_OPEN); /* disable encryption */
6575 if (encoding->flags & IW_ENCODE_RESTRICTED)
6576 set_auth_type(local, AUTH_SHAREDKEY); /* Only Both */
6577 if (encoding->flags & IW_ENCODE_OPEN)
6578 set_auth_type(local, AUTH_ENCRYPT);
6579 /* Commit the changes to flags if needed */
6580 if (local->config.authType != currentAuthType)
6581 set_bit (FLAG_COMMIT, &local->flags);
6582
6583 return -EINPROGRESS;
6584 }
6585
6586
6587 /*------------------------------------------------------------------*/
6588 /*
6589 * Wireless Handler : get extended Encryption parameters
6590 */
airo_get_encodeext(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6591 static int airo_get_encodeext(struct net_device *dev,
6592 struct iw_request_info *info,
6593 union iwreq_data *wrqu,
6594 char *extra)
6595 {
6596 struct airo_info *local = dev->ml_priv;
6597 struct iw_point *encoding = &wrqu->encoding;
6598 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6599 int idx, max_key_len, wep_key_len;
6600 u8 buf[16];
6601
6602 if (!local->wep_capable)
6603 return -EOPNOTSUPP;
6604
6605 readConfigRid(local, 1);
6606
6607 max_key_len = encoding->length - sizeof(*ext);
6608 if (max_key_len < 0)
6609 return -EINVAL;
6610
6611 idx = encoding->flags & IW_ENCODE_INDEX;
6612 if (idx) {
6613 if (!valid_index(local, idx - 1))
6614 return -EINVAL;
6615 idx--;
6616 } else {
6617 idx = get_wep_tx_idx(local);
6618 if (idx < 0)
6619 idx = 0;
6620 }
6621
6622 encoding->flags = idx + 1;
6623 memset(ext, 0, sizeof(*ext));
6624
6625 /* Check encryption mode */
6626 switch(local->config.authType) {
6627 case AUTH_ENCRYPT:
6628 encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED;
6629 break;
6630 case AUTH_SHAREDKEY:
6631 encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED;
6632 break;
6633 default:
6634 case AUTH_OPEN:
6635 encoding->flags = IW_ENCODE_ALG_NONE | IW_ENCODE_DISABLED;
6636 break;
6637 }
6638 /* We can't return the key, so set the proper flag and return zero */
6639 encoding->flags |= IW_ENCODE_NOKEY;
6640 memset(extra, 0, 16);
6641
6642 /* Copy the key to the user buffer */
6643 wep_key_len = get_wep_key(local, idx, &buf[0], sizeof(buf));
6644 if (wep_key_len < 0) {
6645 ext->key_len = 0;
6646 } else {
6647 ext->key_len = wep_key_len;
6648 memcpy(extra, buf, ext->key_len);
6649 }
6650
6651 return 0;
6652 }
6653
6654
6655 /*------------------------------------------------------------------*/
6656 /*
6657 * Wireless Handler : set extended authentication parameters
6658 */
airo_set_auth(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6659 static int airo_set_auth(struct net_device *dev,
6660 struct iw_request_info *info,
6661 union iwreq_data *wrqu, char *extra)
6662 {
6663 struct airo_info *local = dev->ml_priv;
6664 struct iw_param *param = &wrqu->param;
6665 __le16 currentAuthType = local->config.authType;
6666
6667 switch (param->flags & IW_AUTH_INDEX) {
6668 case IW_AUTH_WPA_VERSION:
6669 case IW_AUTH_CIPHER_PAIRWISE:
6670 case IW_AUTH_CIPHER_GROUP:
6671 case IW_AUTH_KEY_MGMT:
6672 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6673 case IW_AUTH_PRIVACY_INVOKED:
6674 /*
6675 * airo does not use these parameters
6676 */
6677 break;
6678
6679 case IW_AUTH_DROP_UNENCRYPTED:
6680 if (param->value) {
6681 /* Only change auth type if unencrypted */
6682 if (currentAuthType == AUTH_OPEN)
6683 set_auth_type(local, AUTH_ENCRYPT);
6684 } else {
6685 set_auth_type(local, AUTH_OPEN);
6686 }
6687
6688 /* Commit the changes to flags if needed */
6689 if (local->config.authType != currentAuthType)
6690 set_bit (FLAG_COMMIT, &local->flags);
6691 break;
6692
6693 case IW_AUTH_80211_AUTH_ALG: {
6694 if (param->value & IW_AUTH_ALG_SHARED_KEY) {
6695 set_auth_type(local, AUTH_SHAREDKEY);
6696 } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
6697 /* We don't know here if WEP open system or
6698 * unencrypted mode was requested - so use the
6699 * last mode (of these two) used last time
6700 */
6701 set_auth_type(local, local->last_auth);
6702 } else
6703 return -EINVAL;
6704
6705 /* Commit the changes to flags if needed */
6706 if (local->config.authType != currentAuthType)
6707 set_bit (FLAG_COMMIT, &local->flags);
6708 break;
6709 }
6710
6711 case IW_AUTH_WPA_ENABLED:
6712 /* Silently accept disable of WPA */
6713 if (param->value > 0)
6714 return -EOPNOTSUPP;
6715 break;
6716
6717 default:
6718 return -EOPNOTSUPP;
6719 }
6720 return -EINPROGRESS;
6721 }
6722
6723
6724 /*------------------------------------------------------------------*/
6725 /*
6726 * Wireless Handler : get extended authentication parameters
6727 */
airo_get_auth(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6728 static int airo_get_auth(struct net_device *dev,
6729 struct iw_request_info *info,
6730 union iwreq_data *wrqu, char *extra)
6731 {
6732 struct airo_info *local = dev->ml_priv;
6733 struct iw_param *param = &wrqu->param;
6734 __le16 currentAuthType = local->config.authType;
6735
6736 switch (param->flags & IW_AUTH_INDEX) {
6737 case IW_AUTH_DROP_UNENCRYPTED:
6738 switch (currentAuthType) {
6739 case AUTH_SHAREDKEY:
6740 case AUTH_ENCRYPT:
6741 param->value = 1;
6742 break;
6743 default:
6744 param->value = 0;
6745 break;
6746 }
6747 break;
6748
6749 case IW_AUTH_80211_AUTH_ALG:
6750 switch (currentAuthType) {
6751 case AUTH_SHAREDKEY:
6752 param->value = IW_AUTH_ALG_SHARED_KEY;
6753 break;
6754 case AUTH_ENCRYPT:
6755 default:
6756 param->value = IW_AUTH_ALG_OPEN_SYSTEM;
6757 break;
6758 }
6759 break;
6760
6761 case IW_AUTH_WPA_ENABLED:
6762 param->value = 0;
6763 break;
6764
6765 default:
6766 return -EOPNOTSUPP;
6767 }
6768 return 0;
6769 }
6770
6771
6772 /*------------------------------------------------------------------*/
6773 /*
6774 * Wireless Handler : set Tx-Power
6775 */
airo_set_txpow(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6776 static int airo_set_txpow(struct net_device *dev,
6777 struct iw_request_info *info,
6778 struct iw_param *vwrq,
6779 char *extra)
6780 {
6781 struct airo_info *local = dev->ml_priv;
6782 CapabilityRid cap_rid; /* Card capability info */
6783 int i;
6784 int rc = -EINVAL;
6785 __le16 v = cpu_to_le16(vwrq->value);
6786
6787 readCapabilityRid(local, &cap_rid, 1);
6788
6789 if (vwrq->disabled) {
6790 set_bit (FLAG_RADIO_OFF, &local->flags);
6791 set_bit (FLAG_COMMIT, &local->flags);
6792 return -EINPROGRESS; /* Call commit handler */
6793 }
6794 if (vwrq->flags != IW_TXPOW_MWATT) {
6795 return -EINVAL;
6796 }
6797 clear_bit (FLAG_RADIO_OFF, &local->flags);
6798 for (i = 0; i < 8 && cap_rid.txPowerLevels[i]; i++)
6799 if (v == cap_rid.txPowerLevels[i]) {
6800 readConfigRid(local, 1);
6801 local->config.txPower = v;
6802 set_bit (FLAG_COMMIT, &local->flags);
6803 rc = -EINPROGRESS; /* Call commit handler */
6804 break;
6805 }
6806 return rc;
6807 }
6808
6809 /*------------------------------------------------------------------*/
6810 /*
6811 * Wireless Handler : get Tx-Power
6812 */
airo_get_txpow(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6813 static int airo_get_txpow(struct net_device *dev,
6814 struct iw_request_info *info,
6815 struct iw_param *vwrq,
6816 char *extra)
6817 {
6818 struct airo_info *local = dev->ml_priv;
6819
6820 readConfigRid(local, 1);
6821 vwrq->value = le16_to_cpu(local->config.txPower);
6822 vwrq->fixed = 1; /* No power control */
6823 vwrq->disabled = test_bit(FLAG_RADIO_OFF, &local->flags);
6824 vwrq->flags = IW_TXPOW_MWATT;
6825
6826 return 0;
6827 }
6828
6829 /*------------------------------------------------------------------*/
6830 /*
6831 * Wireless Handler : set Retry limits
6832 */
airo_set_retry(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6833 static int airo_set_retry(struct net_device *dev,
6834 struct iw_request_info *info,
6835 struct iw_param *vwrq,
6836 char *extra)
6837 {
6838 struct airo_info *local = dev->ml_priv;
6839 int rc = -EINVAL;
6840
6841 if (vwrq->disabled) {
6842 return -EINVAL;
6843 }
6844 readConfigRid(local, 1);
6845 if (vwrq->flags & IW_RETRY_LIMIT) {
6846 __le16 v = cpu_to_le16(vwrq->value);
6847 if (vwrq->flags & IW_RETRY_LONG)
6848 local->config.longRetryLimit = v;
6849 else if (vwrq->flags & IW_RETRY_SHORT)
6850 local->config.shortRetryLimit = v;
6851 else {
6852 /* No modifier : set both */
6853 local->config.longRetryLimit = v;
6854 local->config.shortRetryLimit = v;
6855 }
6856 set_bit (FLAG_COMMIT, &local->flags);
6857 rc = -EINPROGRESS; /* Call commit handler */
6858 }
6859 if (vwrq->flags & IW_RETRY_LIFETIME) {
6860 local->config.txLifetime = cpu_to_le16(vwrq->value / 1024);
6861 set_bit (FLAG_COMMIT, &local->flags);
6862 rc = -EINPROGRESS; /* Call commit handler */
6863 }
6864 return rc;
6865 }
6866
6867 /*------------------------------------------------------------------*/
6868 /*
6869 * Wireless Handler : get Retry limits
6870 */
airo_get_retry(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6871 static int airo_get_retry(struct net_device *dev,
6872 struct iw_request_info *info,
6873 struct iw_param *vwrq,
6874 char *extra)
6875 {
6876 struct airo_info *local = dev->ml_priv;
6877
6878 vwrq->disabled = 0; /* Can't be disabled */
6879
6880 readConfigRid(local, 1);
6881 /* Note : by default, display the min retry number */
6882 if ((vwrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
6883 vwrq->flags = IW_RETRY_LIFETIME;
6884 vwrq->value = le16_to_cpu(local->config.txLifetime) * 1024;
6885 } else if ((vwrq->flags & IW_RETRY_LONG)) {
6886 vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
6887 vwrq->value = le16_to_cpu(local->config.longRetryLimit);
6888 } else {
6889 vwrq->flags = IW_RETRY_LIMIT;
6890 vwrq->value = le16_to_cpu(local->config.shortRetryLimit);
6891 if (local->config.shortRetryLimit != local->config.longRetryLimit)
6892 vwrq->flags |= IW_RETRY_SHORT;
6893 }
6894
6895 return 0;
6896 }
6897
6898 /*------------------------------------------------------------------*/
6899 /*
6900 * Wireless Handler : get range info
6901 */
airo_get_range(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6902 static int airo_get_range(struct net_device *dev,
6903 struct iw_request_info *info,
6904 struct iw_point *dwrq,
6905 char *extra)
6906 {
6907 struct airo_info *local = dev->ml_priv;
6908 struct iw_range *range = (struct iw_range *) extra;
6909 CapabilityRid cap_rid; /* Card capability info */
6910 int i;
6911 int k;
6912
6913 readCapabilityRid(local, &cap_rid, 1);
6914
6915 dwrq->length = sizeof(struct iw_range);
6916 memset(range, 0, sizeof(*range));
6917 range->min_nwid = 0x0000;
6918 range->max_nwid = 0x0000;
6919 range->num_channels = 14;
6920 /* Should be based on cap_rid.country to give only
6921 * what the current card support */
6922 k = 0;
6923 for (i = 0; i < 14; i++) {
6924 range->freq[k].i = i + 1; /* List index */
6925 range->freq[k].m = 100000 *
6926 ieee80211_channel_to_frequency(i + 1, NL80211_BAND_2GHZ);
6927 range->freq[k++].e = 1; /* Values in MHz -> * 10^5 * 10 */
6928 }
6929 range->num_frequency = k;
6930
6931 range->sensitivity = 65535;
6932
6933 /* Hum... Should put the right values there */
6934 if (local->rssi)
6935 range->max_qual.qual = 100; /* % */
6936 else
6937 range->max_qual.qual = airo_get_max_quality(&cap_rid);
6938 range->max_qual.level = 0x100 - 120; /* -120 dBm */
6939 range->max_qual.noise = 0x100 - 120; /* -120 dBm */
6940
6941 /* Experimental measurements - boundary 11/5.5 Mb/s */
6942 /* Note : with or without the (local->rssi), results
6943 * are somewhat different. - Jean II */
6944 if (local->rssi) {
6945 range->avg_qual.qual = 50; /* % */
6946 range->avg_qual.level = 0x100 - 70; /* -70 dBm */
6947 } else {
6948 range->avg_qual.qual = airo_get_avg_quality(&cap_rid);
6949 range->avg_qual.level = 0x100 - 80; /* -80 dBm */
6950 }
6951 range->avg_qual.noise = 0x100 - 85; /* -85 dBm */
6952
6953 for (i = 0 ; i < 8 ; i++) {
6954 range->bitrate[i] = cap_rid.supportedRates[i] * 500000;
6955 if (range->bitrate[i] == 0)
6956 break;
6957 }
6958 range->num_bitrates = i;
6959
6960 /* Set an indication of the max TCP throughput
6961 * in bit/s that we can expect using this interface.
6962 * May be use for QoS stuff... Jean II */
6963 if (i > 2)
6964 range->throughput = 5000 * 1000;
6965 else
6966 range->throughput = 1500 * 1000;
6967
6968 range->min_rts = 0;
6969 range->max_rts = AIRO_DEF_MTU;
6970 range->min_frag = 256;
6971 range->max_frag = AIRO_DEF_MTU;
6972
6973 if (cap_rid.softCap & cpu_to_le16(2)) {
6974 // WEP: RC4 40 bits
6975 range->encoding_size[0] = 5;
6976 // RC4 ~128 bits
6977 if (cap_rid.softCap & cpu_to_le16(0x100)) {
6978 range->encoding_size[1] = 13;
6979 range->num_encoding_sizes = 2;
6980 } else
6981 range->num_encoding_sizes = 1;
6982 range->max_encoding_tokens =
6983 cap_rid.softCap & cpu_to_le16(0x80) ? 4 : 1;
6984 } else {
6985 range->num_encoding_sizes = 0;
6986 range->max_encoding_tokens = 0;
6987 }
6988 range->min_pmp = 0;
6989 range->max_pmp = 5000000; /* 5 secs */
6990 range->min_pmt = 0;
6991 range->max_pmt = 65535 * 1024; /* ??? */
6992 range->pmp_flags = IW_POWER_PERIOD;
6993 range->pmt_flags = IW_POWER_TIMEOUT;
6994 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R;
6995
6996 /* Transmit Power - values are in mW */
6997 for (i = 0 ; i < 8 ; i++) {
6998 range->txpower[i] = le16_to_cpu(cap_rid.txPowerLevels[i]);
6999 if (range->txpower[i] == 0)
7000 break;
7001 }
7002 range->num_txpower = i;
7003 range->txpower_capa = IW_TXPOW_MWATT;
7004 range->we_version_source = 19;
7005 range->we_version_compiled = WIRELESS_EXT;
7006 range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
7007 range->retry_flags = IW_RETRY_LIMIT;
7008 range->r_time_flags = IW_RETRY_LIFETIME;
7009 range->min_retry = 1;
7010 range->max_retry = 65535;
7011 range->min_r_time = 1024;
7012 range->max_r_time = 65535 * 1024;
7013
7014 /* Event capability (kernel + driver) */
7015 range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
7016 IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) |
7017 IW_EVENT_CAPA_MASK(SIOCGIWAP) |
7018 IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
7019 range->event_capa[1] = IW_EVENT_CAPA_K_1;
7020 range->event_capa[4] = IW_EVENT_CAPA_MASK(IWEVTXDROP);
7021 return 0;
7022 }
7023
7024 /*------------------------------------------------------------------*/
7025 /*
7026 * Wireless Handler : set Power Management
7027 */
airo_set_power(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7028 static int airo_set_power(struct net_device *dev,
7029 struct iw_request_info *info,
7030 struct iw_param *vwrq,
7031 char *extra)
7032 {
7033 struct airo_info *local = dev->ml_priv;
7034
7035 readConfigRid(local, 1);
7036 if (vwrq->disabled) {
7037 if (sniffing_mode(local))
7038 return -EINVAL;
7039 local->config.powerSaveMode = POWERSAVE_CAM;
7040 local->config.rmode &= ~RXMODE_MASK;
7041 local->config.rmode |= RXMODE_BC_MC_ADDR;
7042 set_bit (FLAG_COMMIT, &local->flags);
7043 return -EINPROGRESS; /* Call commit handler */
7044 }
7045 if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
7046 local->config.fastListenDelay = cpu_to_le16((vwrq->value + 500) / 1024);
7047 local->config.powerSaveMode = POWERSAVE_PSPCAM;
7048 set_bit (FLAG_COMMIT, &local->flags);
7049 } else if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_PERIOD) {
7050 local->config.fastListenInterval =
7051 local->config.listenInterval =
7052 cpu_to_le16((vwrq->value + 500) / 1024);
7053 local->config.powerSaveMode = POWERSAVE_PSPCAM;
7054 set_bit (FLAG_COMMIT, &local->flags);
7055 }
7056 switch (vwrq->flags & IW_POWER_MODE) {
7057 case IW_POWER_UNICAST_R:
7058 if (sniffing_mode(local))
7059 return -EINVAL;
7060 local->config.rmode &= ~RXMODE_MASK;
7061 local->config.rmode |= RXMODE_ADDR;
7062 set_bit (FLAG_COMMIT, &local->flags);
7063 break;
7064 case IW_POWER_ALL_R:
7065 if (sniffing_mode(local))
7066 return -EINVAL;
7067 local->config.rmode &= ~RXMODE_MASK;
7068 local->config.rmode |= RXMODE_BC_MC_ADDR;
7069 set_bit (FLAG_COMMIT, &local->flags);
7070 case IW_POWER_ON:
7071 /* This is broken, fixme ;-) */
7072 break;
7073 default:
7074 return -EINVAL;
7075 }
7076 // Note : we may want to factor local->need_commit here
7077 // Note2 : may also want to factor RXMODE_RFMON test
7078 return -EINPROGRESS; /* Call commit handler */
7079 }
7080
7081 /*------------------------------------------------------------------*/
7082 /*
7083 * Wireless Handler : get Power Management
7084 */
airo_get_power(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7085 static int airo_get_power(struct net_device *dev,
7086 struct iw_request_info *info,
7087 struct iw_param *vwrq,
7088 char *extra)
7089 {
7090 struct airo_info *local = dev->ml_priv;
7091 __le16 mode;
7092
7093 readConfigRid(local, 1);
7094 mode = local->config.powerSaveMode;
7095 if ((vwrq->disabled = (mode == POWERSAVE_CAM)))
7096 return 0;
7097 if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
7098 vwrq->value = le16_to_cpu(local->config.fastListenDelay) * 1024;
7099 vwrq->flags = IW_POWER_TIMEOUT;
7100 } else {
7101 vwrq->value = le16_to_cpu(local->config.fastListenInterval) * 1024;
7102 vwrq->flags = IW_POWER_PERIOD;
7103 }
7104 if ((local->config.rmode & RXMODE_MASK) == RXMODE_ADDR)
7105 vwrq->flags |= IW_POWER_UNICAST_R;
7106 else
7107 vwrq->flags |= IW_POWER_ALL_R;
7108
7109 return 0;
7110 }
7111
7112 /*------------------------------------------------------------------*/
7113 /*
7114 * Wireless Handler : set Sensitivity
7115 */
airo_set_sens(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7116 static int airo_set_sens(struct net_device *dev,
7117 struct iw_request_info *info,
7118 struct iw_param *vwrq,
7119 char *extra)
7120 {
7121 struct airo_info *local = dev->ml_priv;
7122
7123 readConfigRid(local, 1);
7124 local->config.rssiThreshold =
7125 cpu_to_le16(vwrq->disabled ? RSSI_DEFAULT : vwrq->value);
7126 set_bit (FLAG_COMMIT, &local->flags);
7127
7128 return -EINPROGRESS; /* Call commit handler */
7129 }
7130
7131 /*------------------------------------------------------------------*/
7132 /*
7133 * Wireless Handler : get Sensitivity
7134 */
airo_get_sens(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7135 static int airo_get_sens(struct net_device *dev,
7136 struct iw_request_info *info,
7137 struct iw_param *vwrq,
7138 char *extra)
7139 {
7140 struct airo_info *local = dev->ml_priv;
7141
7142 readConfigRid(local, 1);
7143 vwrq->value = le16_to_cpu(local->config.rssiThreshold);
7144 vwrq->disabled = (vwrq->value == 0);
7145 vwrq->fixed = 1;
7146
7147 return 0;
7148 }
7149
7150 /*------------------------------------------------------------------*/
7151 /*
7152 * Wireless Handler : get AP List
7153 * Note : this is deprecated in favor of IWSCAN
7154 */
airo_get_aplist(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)7155 static int airo_get_aplist(struct net_device *dev,
7156 struct iw_request_info *info,
7157 struct iw_point *dwrq,
7158 char *extra)
7159 {
7160 struct airo_info *local = dev->ml_priv;
7161 struct sockaddr *address = (struct sockaddr *) extra;
7162 struct iw_quality *qual;
7163 BSSListRid BSSList;
7164 int i;
7165 int loseSync = capable(CAP_NET_ADMIN) ? 1: -1;
7166
7167 qual = kmalloc_array(IW_MAX_AP, sizeof(*qual), GFP_KERNEL);
7168 if (!qual)
7169 return -ENOMEM;
7170
7171 for (i = 0; i < IW_MAX_AP; i++) {
7172 u16 dBm;
7173 if (readBSSListRid(local, loseSync, &BSSList))
7174 break;
7175 loseSync = 0;
7176 memcpy(address[i].sa_data, BSSList.bssid, ETH_ALEN);
7177 address[i].sa_family = ARPHRD_ETHER;
7178 dBm = le16_to_cpu(BSSList.dBm);
7179 if (local->rssi) {
7180 qual[i].level = 0x100 - dBm;
7181 qual[i].qual = airo_dbm_to_pct(local->rssi, dBm);
7182 qual[i].updated = IW_QUAL_QUAL_UPDATED
7183 | IW_QUAL_LEVEL_UPDATED
7184 | IW_QUAL_DBM;
7185 } else {
7186 qual[i].level = (dBm + 321) / 2;
7187 qual[i].qual = 0;
7188 qual[i].updated = IW_QUAL_QUAL_INVALID
7189 | IW_QUAL_LEVEL_UPDATED
7190 | IW_QUAL_DBM;
7191 }
7192 qual[i].noise = local->wstats.qual.noise;
7193 if (BSSList.index == cpu_to_le16(0xffff))
7194 break;
7195 }
7196 if (!i) {
7197 StatusRid status_rid; /* Card status info */
7198 readStatusRid(local, &status_rid, 1);
7199 for (i = 0;
7200 i < min(IW_MAX_AP, 4) &&
7201 (status_rid.bssid[i][0]
7202 & status_rid.bssid[i][1]
7203 & status_rid.bssid[i][2]
7204 & status_rid.bssid[i][3]
7205 & status_rid.bssid[i][4]
7206 & status_rid.bssid[i][5])!=0xff &&
7207 (status_rid.bssid[i][0]
7208 | status_rid.bssid[i][1]
7209 | status_rid.bssid[i][2]
7210 | status_rid.bssid[i][3]
7211 | status_rid.bssid[i][4]
7212 | status_rid.bssid[i][5]);
7213 i++) {
7214 memcpy(address[i].sa_data,
7215 status_rid.bssid[i], ETH_ALEN);
7216 address[i].sa_family = ARPHRD_ETHER;
7217 }
7218 } else {
7219 dwrq->flags = 1; /* Should be define'd */
7220 memcpy(extra + sizeof(struct sockaddr) * i, qual,
7221 sizeof(struct iw_quality) * i);
7222 }
7223 dwrq->length = i;
7224
7225 kfree(qual);
7226 return 0;
7227 }
7228
7229 /*------------------------------------------------------------------*/
7230 /*
7231 * Wireless Handler : Initiate Scan
7232 */
airo_set_scan(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)7233 static int airo_set_scan(struct net_device *dev,
7234 struct iw_request_info *info,
7235 struct iw_point *dwrq,
7236 char *extra)
7237 {
7238 struct airo_info *ai = dev->ml_priv;
7239 Cmd cmd;
7240 Resp rsp;
7241 int wake = 0;
7242 APListRid APList_rid_empty;
7243
7244 /* Note : you may have realised that, as this is a SET operation,
7245 * this is privileged and therefore a normal user can't
7246 * perform scanning.
7247 * This is not an error, while the device perform scanning,
7248 * traffic doesn't flow, so it's a perfect DoS...
7249 * Jean II */
7250 if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN;
7251
7252 if (down_interruptible(&ai->sem))
7253 return -ERESTARTSYS;
7254
7255 /* If there's already a scan in progress, don't
7256 * trigger another one. */
7257 if (ai->scan_timeout > 0)
7258 goto out;
7259
7260 /* Clear APList as it affects scan results */
7261 memset(&APList_rid_empty, 0, sizeof(APList_rid_empty));
7262 APList_rid_empty.len = cpu_to_le16(sizeof(APList_rid_empty));
7263 disable_MAC(ai, 2);
7264 writeAPListRid(ai, &APList_rid_empty, 0);
7265 enable_MAC(ai, 0);
7266
7267 /* Initiate a scan command */
7268 ai->scan_timeout = RUN_AT(3*HZ);
7269 memset(&cmd, 0, sizeof(cmd));
7270 cmd.cmd = CMD_LISTBSS;
7271 issuecommand(ai, &cmd, &rsp);
7272 wake = 1;
7273
7274 out:
7275 up(&ai->sem);
7276 if (wake)
7277 wake_up_interruptible(&ai->thr_wait);
7278 return 0;
7279 }
7280
7281 /*------------------------------------------------------------------*/
7282 /*
7283 * Translate scan data returned from the card to a card independent
7284 * format that the Wireless Tools will understand - Jean II
7285 */
airo_translate_scan(struct net_device * dev,struct iw_request_info * info,char * current_ev,char * end_buf,BSSListRid * bss)7286 static inline char *airo_translate_scan(struct net_device *dev,
7287 struct iw_request_info *info,
7288 char *current_ev,
7289 char *end_buf,
7290 BSSListRid *bss)
7291 {
7292 struct airo_info *ai = dev->ml_priv;
7293 struct iw_event iwe; /* Temporary buffer */
7294 __le16 capabilities;
7295 char * current_val; /* For rates */
7296 int i;
7297 char * buf;
7298 u16 dBm;
7299
7300 /* First entry *MUST* be the AP MAC address */
7301 iwe.cmd = SIOCGIWAP;
7302 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
7303 memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN);
7304 current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7305 &iwe, IW_EV_ADDR_LEN);
7306
7307 /* Other entries will be displayed in the order we give them */
7308
7309 /* Add the ESSID */
7310 iwe.u.data.length = bss->ssidLen;
7311 if (iwe.u.data.length > 32)
7312 iwe.u.data.length = 32;
7313 iwe.cmd = SIOCGIWESSID;
7314 iwe.u.data.flags = 1;
7315 current_ev = iwe_stream_add_point(info, current_ev, end_buf,
7316 &iwe, bss->ssid);
7317
7318 /* Add mode */
7319 iwe.cmd = SIOCGIWMODE;
7320 capabilities = bss->cap;
7321 if (capabilities & (CAP_ESS | CAP_IBSS)) {
7322 if (capabilities & CAP_ESS)
7323 iwe.u.mode = IW_MODE_MASTER;
7324 else
7325 iwe.u.mode = IW_MODE_ADHOC;
7326 current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7327 &iwe, IW_EV_UINT_LEN);
7328 }
7329
7330 /* Add frequency */
7331 iwe.cmd = SIOCGIWFREQ;
7332 iwe.u.freq.m = le16_to_cpu(bss->dsChannel);
7333 iwe.u.freq.m = 100000 *
7334 ieee80211_channel_to_frequency(iwe.u.freq.m, NL80211_BAND_2GHZ);
7335 iwe.u.freq.e = 1;
7336 current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7337 &iwe, IW_EV_FREQ_LEN);
7338
7339 dBm = le16_to_cpu(bss->dBm);
7340
7341 /* Add quality statistics */
7342 iwe.cmd = IWEVQUAL;
7343 if (ai->rssi) {
7344 iwe.u.qual.level = 0x100 - dBm;
7345 iwe.u.qual.qual = airo_dbm_to_pct(ai->rssi, dBm);
7346 iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED
7347 | IW_QUAL_LEVEL_UPDATED
7348 | IW_QUAL_DBM;
7349 } else {
7350 iwe.u.qual.level = (dBm + 321) / 2;
7351 iwe.u.qual.qual = 0;
7352 iwe.u.qual.updated = IW_QUAL_QUAL_INVALID
7353 | IW_QUAL_LEVEL_UPDATED
7354 | IW_QUAL_DBM;
7355 }
7356 iwe.u.qual.noise = ai->wstats.qual.noise;
7357 current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7358 &iwe, IW_EV_QUAL_LEN);
7359
7360 /* Add encryption capability */
7361 iwe.cmd = SIOCGIWENCODE;
7362 if (capabilities & CAP_PRIVACY)
7363 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
7364 else
7365 iwe.u.data.flags = IW_ENCODE_DISABLED;
7366 iwe.u.data.length = 0;
7367 current_ev = iwe_stream_add_point(info, current_ev, end_buf,
7368 &iwe, bss->ssid);
7369
7370 /* Rate : stuffing multiple values in a single event require a bit
7371 * more of magic - Jean II */
7372 current_val = current_ev + iwe_stream_lcp_len(info);
7373
7374 iwe.cmd = SIOCGIWRATE;
7375 /* Those two flags are ignored... */
7376 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
7377 /* Max 8 values */
7378 for (i = 0 ; i < 8 ; i++) {
7379 /* NULL terminated */
7380 if (bss->rates[i] == 0)
7381 break;
7382 /* Bit rate given in 500 kb/s units (+ 0x80) */
7383 iwe.u.bitrate.value = ((bss->rates[i] & 0x7f) * 500000);
7384 /* Add new value to event */
7385 current_val = iwe_stream_add_value(info, current_ev,
7386 current_val, end_buf,
7387 &iwe, IW_EV_PARAM_LEN);
7388 }
7389 /* Check if we added any event */
7390 if ((current_val - current_ev) > iwe_stream_lcp_len(info))
7391 current_ev = current_val;
7392
7393 /* Beacon interval */
7394 buf = kmalloc(30, GFP_KERNEL);
7395 if (buf) {
7396 iwe.cmd = IWEVCUSTOM;
7397 sprintf(buf, "bcn_int=%d", bss->beaconInterval);
7398 iwe.u.data.length = strlen(buf);
7399 current_ev = iwe_stream_add_point(info, current_ev, end_buf,
7400 &iwe, buf);
7401 kfree(buf);
7402 }
7403
7404 /* Put WPA/RSN Information Elements into the event stream */
7405 if (test_bit(FLAG_WPA_CAPABLE, &ai->flags)) {
7406 unsigned int num_null_ies = 0;
7407 u16 length = sizeof (bss->extra.iep);
7408 u8 *ie = (void *)&bss->extra.iep;
7409
7410 while ((length >= 2) && (num_null_ies < 2)) {
7411 if (2 + ie[1] > length) {
7412 /* Invalid element, don't continue parsing IE */
7413 break;
7414 }
7415
7416 switch (ie[0]) {
7417 case WLAN_EID_SSID:
7418 /* Two zero-length SSID elements
7419 * mean we're done parsing elements */
7420 if (!ie[1])
7421 num_null_ies++;
7422 break;
7423
7424 case WLAN_EID_VENDOR_SPECIFIC:
7425 if (ie[1] >= 4 &&
7426 ie[2] == 0x00 &&
7427 ie[3] == 0x50 &&
7428 ie[4] == 0xf2 &&
7429 ie[5] == 0x01) {
7430 iwe.cmd = IWEVGENIE;
7431 /* 64 is an arbitrary cut-off */
7432 iwe.u.data.length = min(ie[1] + 2,
7433 64);
7434 current_ev = iwe_stream_add_point(
7435 info, current_ev,
7436 end_buf, &iwe, ie);
7437 }
7438 break;
7439
7440 case WLAN_EID_RSN:
7441 iwe.cmd = IWEVGENIE;
7442 /* 64 is an arbitrary cut-off */
7443 iwe.u.data.length = min(ie[1] + 2, 64);
7444 current_ev = iwe_stream_add_point(
7445 info, current_ev, end_buf,
7446 &iwe, ie);
7447 break;
7448
7449 default:
7450 break;
7451 }
7452
7453 length -= 2 + ie[1];
7454 ie += 2 + ie[1];
7455 }
7456 }
7457 return current_ev;
7458 }
7459
7460 /*------------------------------------------------------------------*/
7461 /*
7462 * Wireless Handler : Read Scan Results
7463 */
airo_get_scan(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)7464 static int airo_get_scan(struct net_device *dev,
7465 struct iw_request_info *info,
7466 struct iw_point *dwrq,
7467 char *extra)
7468 {
7469 struct airo_info *ai = dev->ml_priv;
7470 BSSListElement *net;
7471 int err = 0;
7472 char *current_ev = extra;
7473
7474 /* If a scan is in-progress, return -EAGAIN */
7475 if (ai->scan_timeout > 0)
7476 return -EAGAIN;
7477
7478 if (down_interruptible(&ai->sem))
7479 return -EAGAIN;
7480
7481 list_for_each_entry (net, &ai->network_list, list) {
7482 /* Translate to WE format this entry */
7483 current_ev = airo_translate_scan(dev, info, current_ev,
7484 extra + dwrq->length,
7485 &net->bss);
7486
7487 /* Check if there is space for one more entry */
7488 if ((extra + dwrq->length - current_ev) <= IW_EV_ADDR_LEN) {
7489 /* Ask user space to try again with a bigger buffer */
7490 err = -E2BIG;
7491 goto out;
7492 }
7493 }
7494
7495 /* Length of data */
7496 dwrq->length = (current_ev - extra);
7497 dwrq->flags = 0; /* todo */
7498
7499 out:
7500 up(&ai->sem);
7501 return err;
7502 }
7503
7504 /*------------------------------------------------------------------*/
7505 /*
7506 * Commit handler : called after a bunch of SET operations
7507 */
airo_config_commit(struct net_device * dev,struct iw_request_info * info,void * zwrq,char * extra)7508 static int airo_config_commit(struct net_device *dev,
7509 struct iw_request_info *info, /* NULL */
7510 void *zwrq, /* NULL */
7511 char *extra) /* NULL */
7512 {
7513 struct airo_info *local = dev->ml_priv;
7514
7515 if (!test_bit (FLAG_COMMIT, &local->flags))
7516 return 0;
7517
7518 /* Some of the "SET" function may have modified some of the
7519 * parameters. It's now time to commit them in the card */
7520 disable_MAC(local, 1);
7521 if (test_bit (FLAG_RESET, &local->flags)) {
7522 SsidRid SSID_rid;
7523
7524 readSsidRid(local, &SSID_rid);
7525 if (test_bit(FLAG_MPI,&local->flags))
7526 setup_card(local, dev->dev_addr, 1);
7527 else
7528 reset_airo_card(dev);
7529 disable_MAC(local, 1);
7530 writeSsidRid(local, &SSID_rid, 1);
7531 writeAPListRid(local, &local->APList, 1);
7532 }
7533 if (down_interruptible(&local->sem))
7534 return -ERESTARTSYS;
7535 writeConfigRid(local, 0);
7536 enable_MAC(local, 0);
7537 if (test_bit (FLAG_RESET, &local->flags))
7538 airo_set_promisc(local);
7539 else
7540 up(&local->sem);
7541
7542 return 0;
7543 }
7544
7545 /*------------------------------------------------------------------*/
7546 /*
7547 * Structures to export the Wireless Handlers
7548 */
7549
7550 static const struct iw_priv_args airo_private_args[] = {
7551 /*{ cmd, set_args, get_args, name } */
7552 { AIROIOCTL, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof (aironet_ioctl),
7553 IW_PRIV_TYPE_BYTE | 2047, "airoioctl" },
7554 { AIROIDIFC, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof (aironet_ioctl),
7555 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "airoidifc" },
7556 };
7557
7558 static const iw_handler airo_handler[] =
7559 {
7560 (iw_handler) airo_config_commit, /* SIOCSIWCOMMIT */
7561 (iw_handler) airo_get_name, /* SIOCGIWNAME */
7562 (iw_handler) NULL, /* SIOCSIWNWID */
7563 (iw_handler) NULL, /* SIOCGIWNWID */
7564 (iw_handler) airo_set_freq, /* SIOCSIWFREQ */
7565 (iw_handler) airo_get_freq, /* SIOCGIWFREQ */
7566 (iw_handler) airo_set_mode, /* SIOCSIWMODE */
7567 (iw_handler) airo_get_mode, /* SIOCGIWMODE */
7568 (iw_handler) airo_set_sens, /* SIOCSIWSENS */
7569 (iw_handler) airo_get_sens, /* SIOCGIWSENS */
7570 (iw_handler) NULL, /* SIOCSIWRANGE */
7571 (iw_handler) airo_get_range, /* SIOCGIWRANGE */
7572 (iw_handler) NULL, /* SIOCSIWPRIV */
7573 (iw_handler) NULL, /* SIOCGIWPRIV */
7574 (iw_handler) NULL, /* SIOCSIWSTATS */
7575 (iw_handler) NULL, /* SIOCGIWSTATS */
7576 iw_handler_set_spy, /* SIOCSIWSPY */
7577 iw_handler_get_spy, /* SIOCGIWSPY */
7578 iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
7579 iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
7580 (iw_handler) airo_set_wap, /* SIOCSIWAP */
7581 (iw_handler) airo_get_wap, /* SIOCGIWAP */
7582 (iw_handler) NULL, /* -- hole -- */
7583 (iw_handler) airo_get_aplist, /* SIOCGIWAPLIST */
7584 (iw_handler) airo_set_scan, /* SIOCSIWSCAN */
7585 (iw_handler) airo_get_scan, /* SIOCGIWSCAN */
7586 (iw_handler) airo_set_essid, /* SIOCSIWESSID */
7587 (iw_handler) airo_get_essid, /* SIOCGIWESSID */
7588 (iw_handler) airo_set_nick, /* SIOCSIWNICKN */
7589 (iw_handler) airo_get_nick, /* SIOCGIWNICKN */
7590 (iw_handler) NULL, /* -- hole -- */
7591 (iw_handler) NULL, /* -- hole -- */
7592 (iw_handler) airo_set_rate, /* SIOCSIWRATE */
7593 (iw_handler) airo_get_rate, /* SIOCGIWRATE */
7594 (iw_handler) airo_set_rts, /* SIOCSIWRTS */
7595 (iw_handler) airo_get_rts, /* SIOCGIWRTS */
7596 (iw_handler) airo_set_frag, /* SIOCSIWFRAG */
7597 (iw_handler) airo_get_frag, /* SIOCGIWFRAG */
7598 (iw_handler) airo_set_txpow, /* SIOCSIWTXPOW */
7599 (iw_handler) airo_get_txpow, /* SIOCGIWTXPOW */
7600 (iw_handler) airo_set_retry, /* SIOCSIWRETRY */
7601 (iw_handler) airo_get_retry, /* SIOCGIWRETRY */
7602 (iw_handler) airo_set_encode, /* SIOCSIWENCODE */
7603 (iw_handler) airo_get_encode, /* SIOCGIWENCODE */
7604 (iw_handler) airo_set_power, /* SIOCSIWPOWER */
7605 (iw_handler) airo_get_power, /* SIOCGIWPOWER */
7606 (iw_handler) NULL, /* -- hole -- */
7607 (iw_handler) NULL, /* -- hole -- */
7608 (iw_handler) NULL, /* SIOCSIWGENIE */
7609 (iw_handler) NULL, /* SIOCGIWGENIE */
7610 (iw_handler) airo_set_auth, /* SIOCSIWAUTH */
7611 (iw_handler) airo_get_auth, /* SIOCGIWAUTH */
7612 (iw_handler) airo_set_encodeext, /* SIOCSIWENCODEEXT */
7613 (iw_handler) airo_get_encodeext, /* SIOCGIWENCODEEXT */
7614 (iw_handler) NULL, /* SIOCSIWPMKSA */
7615 };
7616
7617 /* Note : don't describe AIROIDIFC and AIROOLDIDIFC in here.
7618 * We want to force the use of the ioctl code, because those can't be
7619 * won't work the iw_handler code (because they simultaneously read
7620 * and write data and iw_handler can't do that).
7621 * Note that it's perfectly legal to read/write on a single ioctl command,
7622 * you just can't use iwpriv and need to force it via the ioctl handler.
7623 * Jean II */
7624 static const iw_handler airo_private_handler[] =
7625 {
7626 NULL, /* SIOCIWFIRSTPRIV */
7627 };
7628
7629 static const struct iw_handler_def airo_handler_def =
7630 {
7631 .num_standard = ARRAY_SIZE(airo_handler),
7632 .num_private = ARRAY_SIZE(airo_private_handler),
7633 .num_private_args = ARRAY_SIZE(airo_private_args),
7634 .standard = airo_handler,
7635 .private = airo_private_handler,
7636 .private_args = airo_private_args,
7637 .get_wireless_stats = airo_get_wireless_stats,
7638 };
7639
7640 /*
7641 * This defines the configuration part of the Wireless Extensions
7642 * Note : irq and spinlock protection will occur in the subroutines
7643 *
7644 * TODO :
7645 * o Check input value more carefully and fill correct values in range
7646 * o Test and shakeout the bugs (if any)
7647 *
7648 * Jean II
7649 *
7650 * Javier Achirica did a great job of merging code from the unnamed CISCO
7651 * developer that added support for flashing the card.
7652 */
airo_ioctl(struct net_device * dev,struct ifreq * rq,int cmd)7653 static int airo_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
7654 {
7655 int rc = 0;
7656 struct airo_info *ai = dev->ml_priv;
7657
7658 if (ai->power.event)
7659 return 0;
7660
7661 switch (cmd) {
7662 #ifdef CISCO_EXT
7663 case AIROIDIFC:
7664 #ifdef AIROOLDIDIFC
7665 case AIROOLDIDIFC:
7666 #endif
7667 {
7668 int val = AIROMAGIC;
7669 aironet_ioctl com;
7670 if (copy_from_user(&com, rq->ifr_data, sizeof(com)))
7671 rc = -EFAULT;
7672 else if (copy_to_user(com.data, (char *)&val, sizeof(val)))
7673 rc = -EFAULT;
7674 }
7675 break;
7676
7677 case AIROIOCTL:
7678 #ifdef AIROOLDIOCTL
7679 case AIROOLDIOCTL:
7680 #endif
7681 /* Get the command struct and hand it off for evaluation by
7682 * the proper subfunction
7683 */
7684 {
7685 aironet_ioctl com;
7686 if (copy_from_user(&com, rq->ifr_data, sizeof(com))) {
7687 rc = -EFAULT;
7688 break;
7689 }
7690
7691 /* Separate R/W functions bracket legality here
7692 */
7693 if (com.command == AIRORSWVERSION) {
7694 if (copy_to_user(com.data, swversion, sizeof(swversion)))
7695 rc = -EFAULT;
7696 else
7697 rc = 0;
7698 }
7699 else if (com.command <= AIRORRID)
7700 rc = readrids(dev,&com);
7701 else if (com.command >= AIROPCAP && com.command <= (AIROPLEAPUSR+2))
7702 rc = writerids(dev,&com);
7703 else if (com.command >= AIROFLSHRST && com.command <= AIRORESTART)
7704 rc = flashcard(dev,&com);
7705 else
7706 rc = -EINVAL; /* Bad command in ioctl */
7707 }
7708 break;
7709 #endif /* CISCO_EXT */
7710
7711 // All other calls are currently unsupported
7712 default:
7713 rc = -EOPNOTSUPP;
7714 }
7715 return rc;
7716 }
7717
7718 /*
7719 * Get the Wireless stats out of the driver
7720 * Note : irq and spinlock protection will occur in the subroutines
7721 *
7722 * TODO :
7723 * o Check if work in Ad-Hoc mode (otherwise, use SPY, as in wvlan_cs)
7724 *
7725 * Jean
7726 */
airo_read_wireless_stats(struct airo_info * local)7727 static void airo_read_wireless_stats(struct airo_info *local)
7728 {
7729 StatusRid status_rid;
7730 StatsRid stats_rid;
7731 CapabilityRid cap_rid;
7732 __le32 *vals = stats_rid.vals;
7733
7734 /* Get stats out of the card */
7735 clear_bit(JOB_WSTATS, &local->jobs);
7736 if (local->power.event) {
7737 up(&local->sem);
7738 return;
7739 }
7740 readCapabilityRid(local, &cap_rid, 0);
7741 readStatusRid(local, &status_rid, 0);
7742 readStatsRid(local, &stats_rid, RID_STATS, 0);
7743 up(&local->sem);
7744
7745 /* The status */
7746 local->wstats.status = le16_to_cpu(status_rid.mode);
7747
7748 /* Signal quality and co */
7749 if (local->rssi) {
7750 local->wstats.qual.level =
7751 airo_rssi_to_dbm(local->rssi,
7752 le16_to_cpu(status_rid.sigQuality));
7753 /* normalizedSignalStrength appears to be a percentage */
7754 local->wstats.qual.qual =
7755 le16_to_cpu(status_rid.normalizedSignalStrength);
7756 } else {
7757 local->wstats.qual.level =
7758 (le16_to_cpu(status_rid.normalizedSignalStrength) + 321) / 2;
7759 local->wstats.qual.qual = airo_get_quality(&status_rid, &cap_rid);
7760 }
7761 if (le16_to_cpu(status_rid.len) >= 124) {
7762 local->wstats.qual.noise = 0x100 - status_rid.noisedBm;
7763 local->wstats.qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
7764 } else {
7765 local->wstats.qual.noise = 0;
7766 local->wstats.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | IW_QUAL_NOISE_INVALID | IW_QUAL_DBM;
7767 }
7768
7769 /* Packets discarded in the wireless adapter due to wireless
7770 * specific problems */
7771 local->wstats.discard.nwid = le32_to_cpu(vals[56]) +
7772 le32_to_cpu(vals[57]) +
7773 le32_to_cpu(vals[58]); /* SSID Mismatch */
7774 local->wstats.discard.code = le32_to_cpu(vals[6]);/* RxWepErr */
7775 local->wstats.discard.fragment = le32_to_cpu(vals[30]);
7776 local->wstats.discard.retries = le32_to_cpu(vals[10]);
7777 local->wstats.discard.misc = le32_to_cpu(vals[1]) +
7778 le32_to_cpu(vals[32]);
7779 local->wstats.miss.beacon = le32_to_cpu(vals[34]);
7780 }
7781
airo_get_wireless_stats(struct net_device * dev)7782 static struct iw_statistics *airo_get_wireless_stats(struct net_device *dev)
7783 {
7784 struct airo_info *local = dev->ml_priv;
7785
7786 if (!test_bit(JOB_WSTATS, &local->jobs)) {
7787 /* Get stats out of the card if available */
7788 if (down_trylock(&local->sem) != 0) {
7789 set_bit(JOB_WSTATS, &local->jobs);
7790 wake_up_interruptible(&local->thr_wait);
7791 } else
7792 airo_read_wireless_stats(local);
7793 }
7794
7795 return &local->wstats;
7796 }
7797
7798 #ifdef CISCO_EXT
7799 /*
7800 * This just translates from driver IOCTL codes to the command codes to
7801 * feed to the radio's host interface. Things can be added/deleted
7802 * as needed. This represents the READ side of control I/O to
7803 * the card
7804 */
readrids(struct net_device * dev,aironet_ioctl * comp)7805 static int readrids(struct net_device *dev, aironet_ioctl *comp)
7806 {
7807 unsigned short ridcode;
7808 unsigned char *iobuf;
7809 int len;
7810 struct airo_info *ai = dev->ml_priv;
7811
7812 if (test_bit(FLAG_FLASHING, &ai->flags))
7813 return -EIO;
7814
7815 switch(comp->command)
7816 {
7817 case AIROGCAP: ridcode = RID_CAPABILITIES; break;
7818 case AIROGCFG: ridcode = RID_CONFIG;
7819 if (test_bit(FLAG_COMMIT, &ai->flags)) {
7820 disable_MAC (ai, 1);
7821 writeConfigRid (ai, 1);
7822 enable_MAC(ai, 1);
7823 }
7824 break;
7825 case AIROGSLIST: ridcode = RID_SSID; break;
7826 case AIROGVLIST: ridcode = RID_APLIST; break;
7827 case AIROGDRVNAM: ridcode = RID_DRVNAME; break;
7828 case AIROGEHTENC: ridcode = RID_ETHERENCAP; break;
7829 case AIROGWEPKTMP: ridcode = RID_WEP_TEMP; break;
7830 case AIROGWEPKNV: ridcode = RID_WEP_PERM; break;
7831 case AIROGSTAT: ridcode = RID_STATUS; break;
7832 case AIROGSTATSD32: ridcode = RID_STATSDELTA; break;
7833 case AIROGSTATSC32: ridcode = RID_STATS; break;
7834 case AIROGMICSTATS:
7835 if (copy_to_user(comp->data, &ai->micstats,
7836 min((int)comp->len, (int)sizeof(ai->micstats))))
7837 return -EFAULT;
7838 return 0;
7839 case AIRORRID: ridcode = comp->ridnum; break;
7840 default:
7841 return -EINVAL;
7842 }
7843
7844 if (ridcode == RID_WEP_TEMP || ridcode == RID_WEP_PERM) {
7845 /* Only super-user can read WEP keys */
7846 if (!capable(CAP_NET_ADMIN))
7847 return -EPERM;
7848 }
7849
7850 if ((iobuf = kzalloc(RIDSIZE, GFP_KERNEL)) == NULL)
7851 return -ENOMEM;
7852
7853 PC4500_readrid(ai, ridcode, iobuf, RIDSIZE, 1);
7854 /* get the count of bytes in the rid docs say 1st 2 bytes is it.
7855 * then return it to the user
7856 * 9/22/2000 Honor user given length
7857 */
7858 len = comp->len;
7859
7860 if (copy_to_user(comp->data, iobuf, min(len, (int)RIDSIZE))) {
7861 kfree (iobuf);
7862 return -EFAULT;
7863 }
7864 kfree (iobuf);
7865 return 0;
7866 }
7867
7868 /*
7869 * Danger Will Robinson write the rids here
7870 */
7871
writerids(struct net_device * dev,aironet_ioctl * comp)7872 static int writerids(struct net_device *dev, aironet_ioctl *comp)
7873 {
7874 struct airo_info *ai = dev->ml_priv;
7875 int ridcode;
7876 int enabled;
7877 int (*writer)(struct airo_info *, u16 rid, const void *, int, int);
7878 unsigned char *iobuf;
7879
7880 /* Only super-user can write RIDs */
7881 if (!capable(CAP_NET_ADMIN))
7882 return -EPERM;
7883
7884 if (test_bit(FLAG_FLASHING, &ai->flags))
7885 return -EIO;
7886
7887 ridcode = 0;
7888 writer = do_writerid;
7889
7890 switch(comp->command)
7891 {
7892 case AIROPSIDS: ridcode = RID_SSID; break;
7893 case AIROPCAP: ridcode = RID_CAPABILITIES; break;
7894 case AIROPAPLIST: ridcode = RID_APLIST; break;
7895 case AIROPCFG: ai->config.len = 0;
7896 clear_bit(FLAG_COMMIT, &ai->flags);
7897 ridcode = RID_CONFIG; break;
7898 case AIROPWEPKEYNV: ridcode = RID_WEP_PERM; break;
7899 case AIROPLEAPUSR: ridcode = RID_LEAPUSERNAME; break;
7900 case AIROPLEAPPWD: ridcode = RID_LEAPPASSWORD; break;
7901 case AIROPWEPKEY: ridcode = RID_WEP_TEMP; writer = PC4500_writerid;
7902 break;
7903 case AIROPLEAPUSR+1: ridcode = 0xFF2A; break;
7904 case AIROPLEAPUSR+2: ridcode = 0xFF2B; break;
7905
7906 /* this is not really a rid but a command given to the card
7907 * same with MAC off
7908 */
7909 case AIROPMACON:
7910 if (enable_MAC(ai, 1) != 0)
7911 return -EIO;
7912 return 0;
7913
7914 /*
7915 * Evidently this code in the airo driver does not get a symbol
7916 * as disable_MAC. it's probably so short the compiler does not gen one.
7917 */
7918 case AIROPMACOFF:
7919 disable_MAC(ai, 1);
7920 return 0;
7921
7922 /* This command merely clears the counts does not actually store any data
7923 * only reads rid. But as it changes the cards state, I put it in the
7924 * writerid routines.
7925 */
7926 case AIROPSTCLR:
7927 if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL)
7928 return -ENOMEM;
7929
7930 PC4500_readrid(ai, RID_STATSDELTACLEAR, iobuf, RIDSIZE, 1);
7931
7932 enabled = ai->micstats.enabled;
7933 memset(&ai->micstats, 0, sizeof(ai->micstats));
7934 ai->micstats.enabled = enabled;
7935
7936 if (copy_to_user(comp->data, iobuf,
7937 min((int)comp->len, (int)RIDSIZE))) {
7938 kfree (iobuf);
7939 return -EFAULT;
7940 }
7941 kfree (iobuf);
7942 return 0;
7943
7944 default:
7945 return -EOPNOTSUPP; /* Blarg! */
7946 }
7947 if (comp->len > RIDSIZE)
7948 return -EINVAL;
7949
7950 if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL)
7951 return -ENOMEM;
7952
7953 if (copy_from_user(iobuf, comp->data, comp->len)) {
7954 kfree (iobuf);
7955 return -EFAULT;
7956 }
7957
7958 if (comp->command == AIROPCFG) {
7959 ConfigRid *cfg = (ConfigRid *)iobuf;
7960
7961 if (test_bit(FLAG_MIC_CAPABLE, &ai->flags))
7962 cfg->opmode |= MODE_MIC;
7963
7964 if ((cfg->opmode & MODE_CFG_MASK) == MODE_STA_IBSS)
7965 set_bit (FLAG_ADHOC, &ai->flags);
7966 else
7967 clear_bit (FLAG_ADHOC, &ai->flags);
7968 }
7969
7970 if ((*writer)(ai, ridcode, iobuf, comp->len, 1)) {
7971 kfree (iobuf);
7972 return -EIO;
7973 }
7974 kfree (iobuf);
7975 return 0;
7976 }
7977
7978 /*****************************************************************************
7979 * Ancillary flash / mod functions much black magic lurkes here *
7980 *****************************************************************************
7981 */
7982
7983 /*
7984 * Flash command switch table
7985 */
7986
flashcard(struct net_device * dev,aironet_ioctl * comp)7987 static int flashcard(struct net_device *dev, aironet_ioctl *comp)
7988 {
7989 int z;
7990
7991 /* Only super-user can modify flash */
7992 if (!capable(CAP_NET_ADMIN))
7993 return -EPERM;
7994
7995 switch(comp->command)
7996 {
7997 case AIROFLSHRST:
7998 return cmdreset((struct airo_info *)dev->ml_priv);
7999
8000 case AIROFLSHSTFL:
8001 if (!AIRO_FLASH(dev) &&
8002 (AIRO_FLASH(dev) = kmalloc(FLASHSIZE, GFP_KERNEL)) == NULL)
8003 return -ENOMEM;
8004 return setflashmode((struct airo_info *)dev->ml_priv);
8005
8006 case AIROFLSHGCHR: /* Get char from aux */
8007 if (comp->len != sizeof(int))
8008 return -EINVAL;
8009 if (copy_from_user(&z, comp->data, comp->len))
8010 return -EFAULT;
8011 return flashgchar((struct airo_info *)dev->ml_priv, z, 8000);
8012
8013 case AIROFLSHPCHR: /* Send char to card. */
8014 if (comp->len != sizeof(int))
8015 return -EINVAL;
8016 if (copy_from_user(&z, comp->data, comp->len))
8017 return -EFAULT;
8018 return flashpchar((struct airo_info *)dev->ml_priv, z, 8000);
8019
8020 case AIROFLPUTBUF: /* Send 32k to card */
8021 if (!AIRO_FLASH(dev))
8022 return -ENOMEM;
8023 if (comp->len > FLASHSIZE)
8024 return -EINVAL;
8025 if (copy_from_user(AIRO_FLASH(dev), comp->data, comp->len))
8026 return -EFAULT;
8027
8028 flashputbuf((struct airo_info *)dev->ml_priv);
8029 return 0;
8030
8031 case AIRORESTART:
8032 if (flashrestart((struct airo_info *)dev->ml_priv, dev))
8033 return -EIO;
8034 return 0;
8035 }
8036 return -EINVAL;
8037 }
8038
8039 #define FLASH_COMMAND 0x7e7e
8040
8041 /*
8042 * STEP 1)
8043 * Disable MAC and do soft reset on
8044 * card.
8045 */
8046
cmdreset(struct airo_info * ai)8047 static int cmdreset(struct airo_info *ai)
8048 {
8049 disable_MAC(ai, 1);
8050
8051 if (!waitbusy (ai)) {
8052 airo_print_info(ai->dev->name, "Waitbusy hang before RESET");
8053 return -EBUSY;
8054 }
8055
8056 OUT4500(ai, COMMAND, CMD_SOFTRESET);
8057
8058 ssleep(1); /* WAS 600 12/7/00 */
8059
8060 if (!waitbusy (ai)) {
8061 airo_print_info(ai->dev->name, "Waitbusy hang AFTER RESET");
8062 return -EBUSY;
8063 }
8064 return 0;
8065 }
8066
8067 /* STEP 2)
8068 * Put the card in legendary flash
8069 * mode
8070 */
8071
setflashmode(struct airo_info * ai)8072 static int setflashmode (struct airo_info *ai)
8073 {
8074 set_bit (FLAG_FLASHING, &ai->flags);
8075
8076 OUT4500(ai, SWS0, FLASH_COMMAND);
8077 OUT4500(ai, SWS1, FLASH_COMMAND);
8078 if (probe) {
8079 OUT4500(ai, SWS0, FLASH_COMMAND);
8080 OUT4500(ai, COMMAND, 0x10);
8081 } else {
8082 OUT4500(ai, SWS2, FLASH_COMMAND);
8083 OUT4500(ai, SWS3, FLASH_COMMAND);
8084 OUT4500(ai, COMMAND, 0);
8085 }
8086 msleep(500); /* 500ms delay */
8087
8088 if (!waitbusy(ai)) {
8089 clear_bit (FLAG_FLASHING, &ai->flags);
8090 airo_print_info(ai->dev->name, "Waitbusy hang after setflash mode");
8091 return -EIO;
8092 }
8093 return 0;
8094 }
8095
8096 /* Put character to SWS0 wait for dwelltime
8097 * x 50us for echo .
8098 */
8099
flashpchar(struct airo_info * ai,int byte,int dwelltime)8100 static int flashpchar(struct airo_info *ai, int byte, int dwelltime)
8101 {
8102 int echo;
8103 int waittime;
8104
8105 byte |= 0x8000;
8106
8107 if (dwelltime == 0)
8108 dwelltime = 200;
8109
8110 waittime = dwelltime;
8111
8112 /* Wait for busy bit d15 to go false indicating buffer empty */
8113 while ((IN4500 (ai, SWS0) & 0x8000) && waittime > 0) {
8114 udelay (50);
8115 waittime -= 50;
8116 }
8117
8118 /* timeout for busy clear wait */
8119 if (waittime <= 0) {
8120 airo_print_info(ai->dev->name, "flash putchar busywait timeout!");
8121 return -EBUSY;
8122 }
8123
8124 /* Port is clear now write byte and wait for it to echo back */
8125 do {
8126 OUT4500(ai, SWS0, byte);
8127 udelay(50);
8128 dwelltime -= 50;
8129 echo = IN4500(ai, SWS1);
8130 } while (dwelltime >= 0 && echo != byte);
8131
8132 OUT4500(ai, SWS1, 0);
8133
8134 return (echo == byte) ? 0 : -EIO;
8135 }
8136
8137 /*
8138 * Get a character from the card matching matchbyte
8139 * Step 3)
8140 */
flashgchar(struct airo_info * ai,int matchbyte,int dwelltime)8141 static int flashgchar(struct airo_info *ai, int matchbyte, int dwelltime)
8142 {
8143 int rchar;
8144 unsigned char rbyte = 0;
8145
8146 do {
8147 rchar = IN4500(ai, SWS1);
8148
8149 if (dwelltime && !(0x8000 & rchar)) {
8150 dwelltime -= 10;
8151 mdelay(10);
8152 continue;
8153 }
8154 rbyte = 0xff & rchar;
8155
8156 if ((rbyte == matchbyte) && (0x8000 & rchar)) {
8157 OUT4500(ai, SWS1, 0);
8158 return 0;
8159 }
8160 if (rbyte == 0x81 || rbyte == 0x82 || rbyte == 0x83 || rbyte == 0x1a || 0xffff == rchar)
8161 break;
8162 OUT4500(ai, SWS1, 0);
8163
8164 } while (dwelltime > 0);
8165 return -EIO;
8166 }
8167
8168 /*
8169 * Transfer 32k of firmware data from user buffer to our buffer and
8170 * send to the card
8171 */
8172
flashputbuf(struct airo_info * ai)8173 static int flashputbuf(struct airo_info *ai)
8174 {
8175 int nwords;
8176
8177 /* Write stuff */
8178 if (test_bit(FLAG_MPI,&ai->flags))
8179 memcpy_toio(ai->pciaux + 0x8000, ai->flash, FLASHSIZE);
8180 else {
8181 OUT4500(ai, AUXPAGE, 0x100);
8182 OUT4500(ai, AUXOFF, 0);
8183
8184 for (nwords = 0; nwords != FLASHSIZE / 2; nwords++) {
8185 OUT4500(ai, AUXDATA, ai->flash[nwords] & 0xffff);
8186 }
8187 }
8188 OUT4500(ai, SWS0, 0x8000);
8189
8190 return 0;
8191 }
8192
8193 /*
8194 *
8195 */
flashrestart(struct airo_info * ai,struct net_device * dev)8196 static int flashrestart(struct airo_info *ai, struct net_device *dev)
8197 {
8198 int i, status;
8199
8200 ssleep(1); /* Added 12/7/00 */
8201 clear_bit (FLAG_FLASHING, &ai->flags);
8202 if (test_bit(FLAG_MPI, &ai->flags)) {
8203 status = mpi_init_descriptors(ai);
8204 if (status != SUCCESS)
8205 return status;
8206 }
8207 status = setup_card(ai, dev->dev_addr, 1);
8208
8209 if (!test_bit(FLAG_MPI,&ai->flags))
8210 for (i = 0; i < MAX_FIDS; i++) {
8211 ai->fids[i] = transmit_allocate
8212 (ai, AIRO_DEF_MTU, i >= MAX_FIDS / 2);
8213 }
8214
8215 ssleep(1); /* Added 12/7/00 */
8216 return status;
8217 }
8218 #endif /* CISCO_EXT */
8219
8220 /*
8221 This program is free software; you can redistribute it and/or
8222 modify it under the terms of the GNU General Public License
8223 as published by the Free Software Foundation; either version 2
8224 of the License, or (at your option) any later version.
8225
8226 This program is distributed in the hope that it will be useful,
8227 but WITHOUT ANY WARRANTY; without even the implied warranty of
8228 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
8229 GNU General Public License for more details.
8230
8231 In addition:
8232
8233 Redistribution and use in source and binary forms, with or without
8234 modification, are permitted provided that the following conditions
8235 are met:
8236
8237 1. Redistributions of source code must retain the above copyright
8238 notice, this list of conditions and the following disclaimer.
8239 2. Redistributions in binary form must reproduce the above copyright
8240 notice, this list of conditions and the following disclaimer in the
8241 documentation and/or other materials provided with the distribution.
8242 3. The name of the author may not be used to endorse or promote
8243 products derived from this software without specific prior written
8244 permission.
8245
8246 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
8247 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
8248 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
8249 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
8250 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
8251 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
8252 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
8253 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
8254 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
8255 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
8256 POSSIBILITY OF SUCH DAMAGE.
8257 */
8258
8259 module_init(airo_init_module);
8260 module_exit(airo_cleanup_module);
8261
