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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 
airo_readconfig(struct airo_info * ai,u8 * mac,int lock)3828 static int noinline_for_stack airo_readconfig(struct airo_info *ai, u8 *mac, int lock)
3829 {
3830 	int i, status;
3831 	/* large variables, so don't inline this function,
3832 	 * maybe change to kmalloc
3833 	 */
3834 	tdsRssiRid rssi_rid;
3835 	CapabilityRid cap_rid;
3836 
3837 	kfree(ai->SSID);
3838 	ai->SSID = NULL;
3839 	// general configuration (read/modify/write)
3840 	status = readConfigRid(ai, lock);
3841 	if (status != SUCCESS) return ERROR;
3842 
3843 	status = readCapabilityRid(ai, &cap_rid, lock);
3844 	if (status != SUCCESS) return ERROR;
3845 
3846 	status = PC4500_readrid(ai, RID_RSSI, &rssi_rid, sizeof(rssi_rid), lock);
3847 	if (status == SUCCESS) {
3848 		if (ai->rssi || (ai->rssi = kmalloc(512, GFP_KERNEL)) != NULL)
3849 			memcpy(ai->rssi, (u8*)&rssi_rid + 2, 512); /* Skip RID length member */
3850 	}
3851 	else {
3852 		kfree(ai->rssi);
3853 		ai->rssi = NULL;
3854 		if (cap_rid.softCap & cpu_to_le16(8))
3855 			ai->config.rmode |= RXMODE_NORMALIZED_RSSI;
3856 		else
3857 			airo_print_warn(ai->dev->name, "unknown received signal "
3858 					"level scale");
3859 	}
3860 	ai->config.opmode = adhoc ? MODE_STA_IBSS : MODE_STA_ESS;
3861 	set_auth_type(ai, AUTH_OPEN);
3862 	ai->config.modulation = MOD_CCK;
3863 
3864 	if (le16_to_cpu(cap_rid.len) >= sizeof(cap_rid) &&
3865 	    (cap_rid.extSoftCap & cpu_to_le16(1)) &&
3866 	    micsetup(ai) == SUCCESS) {
3867 		ai->config.opmode |= MODE_MIC;
3868 		set_bit(FLAG_MIC_CAPABLE, &ai->flags);
3869 	}
3870 
3871 	/* Save off the MAC */
3872 	for (i = 0; i < ETH_ALEN; i++) {
3873 		mac[i] = ai->config.macAddr[i];
3874 	}
3875 
3876 	/* Check to see if there are any insmod configured
3877 	   rates to add */
3878 	if (rates[0]) {
3879 		memset(ai->config.rates, 0, sizeof(ai->config.rates));
3880 		for (i = 0; i < 8 && rates[i]; i++) {
3881 			ai->config.rates[i] = rates[i];
3882 		}
3883 	}
3884 	set_bit (FLAG_COMMIT, &ai->flags);
3885 
3886 	return SUCCESS;
3887 }
3888 
3889 
setup_card(struct airo_info * ai,u8 * mac,int lock)3890 static u16 setup_card(struct airo_info *ai, u8 *mac, int lock)
3891 {
3892 	Cmd cmd;
3893 	Resp rsp;
3894 	int status;
3895 	SsidRid mySsid;
3896 	__le16 lastindex;
3897 	WepKeyRid wkr;
3898 	int rc;
3899 
3900 	memset(&mySsid, 0, sizeof(mySsid));
3901 	kfree (ai->flash);
3902 	ai->flash = NULL;
3903 
3904 	/* The NOP is the first step in getting the card going */
3905 	cmd.cmd = NOP;
3906 	cmd.parm0 = cmd.parm1 = cmd.parm2 = 0;
3907 	if (lock && down_interruptible(&ai->sem))
3908 		return ERROR;
3909 	if (issuecommand(ai, &cmd, &rsp) != SUCCESS) {
3910 		if (lock)
3911 			up(&ai->sem);
3912 		return ERROR;
3913 	}
3914 	disable_MAC(ai, 0);
3915 
3916 	// Let's figure out if we need to use the AUX port
3917 	if (!test_bit(FLAG_MPI,&ai->flags)) {
3918 		cmd.cmd = CMD_ENABLEAUX;
3919 		if (issuecommand(ai, &cmd, &rsp) != SUCCESS) {
3920 			if (lock)
3921 				up(&ai->sem);
3922 			airo_print_err(ai->dev->name, "Error checking for AUX port");
3923 			return ERROR;
3924 		}
3925 		if (!aux_bap || rsp.status & 0xff00) {
3926 			ai->bap_read = fast_bap_read;
3927 			airo_print_dbg(ai->dev->name, "Doing fast bap_reads");
3928 		} else {
3929 			ai->bap_read = aux_bap_read;
3930 			airo_print_dbg(ai->dev->name, "Doing AUX bap_reads");
3931 		}
3932 	}
3933 	if (lock)
3934 		up(&ai->sem);
3935 	if (ai->config.len == 0) {
3936 		status = airo_readconfig(ai, mac, lock);
3937 		if (status != SUCCESS)
3938 			return ERROR;
3939 	}
3940 
3941 	/* Setup the SSIDs if present */
3942 	if (ssids[0]) {
3943 		int i;
3944 		for (i = 0; i < 3 && ssids[i]; i++) {
3945 			size_t len = strlen(ssids[i]);
3946 			if (len > 32)
3947 				len = 32;
3948 			mySsid.ssids[i].len = cpu_to_le16(len);
3949 			memcpy(mySsid.ssids[i].ssid, ssids[i], len);
3950 		}
3951 		mySsid.len = cpu_to_le16(sizeof(mySsid));
3952 	}
3953 
3954 	status = writeConfigRid(ai, lock);
3955 	if (status != SUCCESS) return ERROR;
3956 
3957 	/* Set up the SSID list */
3958 	if (ssids[0]) {
3959 		status = writeSsidRid(ai, &mySsid, lock);
3960 		if (status != SUCCESS) return ERROR;
3961 	}
3962 
3963 	status = enable_MAC(ai, lock);
3964 	if (status != SUCCESS)
3965 		return ERROR;
3966 
3967 	/* Grab the initial wep key, we gotta save it for auto_wep */
3968 	rc = readWepKeyRid(ai, &wkr, 1, lock);
3969 	if (rc == SUCCESS) do {
3970 		lastindex = wkr.kindex;
3971 		if (wkr.kindex == cpu_to_le16(0xffff)) {
3972 			ai->defindex = wkr.mac[0];
3973 		}
3974 		rc = readWepKeyRid(ai, &wkr, 0, lock);
3975 	} while (lastindex != wkr.kindex);
3976 
3977 	try_auto_wep(ai);
3978 
3979 	return SUCCESS;
3980 }
3981 
issuecommand(struct airo_info * ai,Cmd * pCmd,Resp * pRsp)3982 static u16 issuecommand(struct airo_info *ai, Cmd *pCmd, Resp *pRsp)
3983 {
3984         // Im really paranoid about letting it run forever!
3985 	int max_tries = 600000;
3986 
3987 	if (IN4500(ai, EVSTAT) & EV_CMD)
3988 		OUT4500(ai, EVACK, EV_CMD);
3989 
3990 	OUT4500(ai, PARAM0, pCmd->parm0);
3991 	OUT4500(ai, PARAM1, pCmd->parm1);
3992 	OUT4500(ai, PARAM2, pCmd->parm2);
3993 	OUT4500(ai, COMMAND, pCmd->cmd);
3994 
3995 	while (max_tries-- && (IN4500(ai, EVSTAT) & EV_CMD) == 0) {
3996 		if ((IN4500(ai, COMMAND)) == pCmd->cmd)
3997 			// PC4500 didn't notice command, try again
3998 			OUT4500(ai, COMMAND, pCmd->cmd);
3999 		if (!in_atomic() && (max_tries & 255) == 0)
4000 			schedule();
4001 	}
4002 
4003 	if (max_tries == -1) {
4004 		airo_print_err(ai->dev->name,
4005 			"Max tries exceeded when issuing command");
4006 		if (IN4500(ai, COMMAND) & COMMAND_BUSY)
4007 			OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
4008 		return ERROR;
4009 	}
4010 
4011 	// command completed
4012 	pRsp->status = IN4500(ai, STATUS);
4013 	pRsp->rsp0 = IN4500(ai, RESP0);
4014 	pRsp->rsp1 = IN4500(ai, RESP1);
4015 	pRsp->rsp2 = IN4500(ai, RESP2);
4016 	if ((pRsp->status & 0xff00)!=0 && pCmd->cmd != CMD_SOFTRESET)
4017 		airo_print_err(ai->dev->name,
4018 			"cmd:%x status:%x rsp0:%x rsp1:%x rsp2:%x",
4019 			pCmd->cmd, pRsp->status, pRsp->rsp0, pRsp->rsp1,
4020 			pRsp->rsp2);
4021 
4022 	// clear stuck command busy if necessary
4023 	if (IN4500(ai, COMMAND) & COMMAND_BUSY) {
4024 		OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
4025 	}
4026 	// acknowledge processing the status/response
4027 	OUT4500(ai, EVACK, EV_CMD);
4028 
4029 	return SUCCESS;
4030 }
4031 
4032 /* Sets up the bap to start exchange data.  whichbap should
4033  * be one of the BAP0 or BAP1 defines.  Locks should be held before
4034  * calling! */
bap_setup(struct airo_info * ai,u16 rid,u16 offset,int whichbap)4035 static int bap_setup(struct airo_info *ai, u16 rid, u16 offset, int whichbap)
4036 {
4037 	int timeout = 50;
4038 	int max_tries = 3;
4039 
4040 	OUT4500(ai, SELECT0+whichbap, rid);
4041 	OUT4500(ai, OFFSET0+whichbap, offset);
4042 	while (1) {
4043 		int status = IN4500(ai, OFFSET0+whichbap);
4044 		if (status & BAP_BUSY) {
4045                         /* This isn't really a timeout, but its kinda
4046 			   close */
4047 			if (timeout--) {
4048 				continue;
4049 			}
4050 		} else if (status & BAP_ERR) {
4051 			/* invalid rid or offset */
4052 			airo_print_err(ai->dev->name, "BAP error %x %d",
4053 				status, whichbap);
4054 			return ERROR;
4055 		} else if (status & BAP_DONE) { // success
4056 			return SUCCESS;
4057 		}
4058 		if (!(max_tries--)) {
4059 			airo_print_err(ai->dev->name,
4060 				"BAP setup error too many retries\n");
4061 			return ERROR;
4062 		}
4063 		// -- PC4500 missed it, try again
4064 		OUT4500(ai, SELECT0+whichbap, rid);
4065 		OUT4500(ai, OFFSET0+whichbap, offset);
4066 		timeout = 50;
4067 	}
4068 }
4069 
4070 /* should only be called by aux_bap_read.  This aux function and the
4071    following use concepts not documented in the developers guide.  I
4072    got them from a patch given to my by Aironet */
aux_setup(struct airo_info * ai,u16 page,u16 offset,u16 * len)4073 static u16 aux_setup(struct airo_info *ai, u16 page,
4074 		     u16 offset, u16 *len)
4075 {
4076 	u16 next;
4077 
4078 	OUT4500(ai, AUXPAGE, page);
4079 	OUT4500(ai, AUXOFF, 0);
4080 	next = IN4500(ai, AUXDATA);
4081 	*len = IN4500(ai, AUXDATA)&0xff;
4082 	if (offset != 4) OUT4500(ai, AUXOFF, offset);
4083 	return next;
4084 }
4085 
4086 /* requires call to bap_setup() first */
aux_bap_read(struct airo_info * ai,__le16 * pu16Dst,int bytelen,int whichbap)4087 static int aux_bap_read(struct airo_info *ai, __le16 *pu16Dst,
4088 			int bytelen, int whichbap)
4089 {
4090 	u16 len;
4091 	u16 page;
4092 	u16 offset;
4093 	u16 next;
4094 	int words;
4095 	int i;
4096 	unsigned long flags;
4097 
4098 	spin_lock_irqsave(&ai->aux_lock, flags);
4099 	page = IN4500(ai, SWS0+whichbap);
4100 	offset = IN4500(ai, SWS2+whichbap);
4101 	next = aux_setup(ai, page, offset, &len);
4102 	words = (bytelen+1)>>1;
4103 
4104 	for (i = 0; i<words;) {
4105 		int count;
4106 		count = (len>>1) < (words-i) ? (len>>1) : (words-i);
4107 		if (!do8bitIO)
4108 			insw(ai->dev->base_addr+DATA0+whichbap,
4109 			      pu16Dst+i, count);
4110 		else
4111 			insb(ai->dev->base_addr+DATA0+whichbap,
4112 			      pu16Dst+i, count << 1);
4113 		i += count;
4114 		if (i<words) {
4115 			next = aux_setup(ai, next, 4, &len);
4116 		}
4117 	}
4118 	spin_unlock_irqrestore(&ai->aux_lock, flags);
4119 	return SUCCESS;
4120 }
4121 
4122 
4123 /* requires call to bap_setup() first */
fast_bap_read(struct airo_info * ai,__le16 * pu16Dst,int bytelen,int whichbap)4124 static int fast_bap_read(struct airo_info *ai, __le16 *pu16Dst,
4125 			 int bytelen, int whichbap)
4126 {
4127 	bytelen = (bytelen + 1) & (~1); // round up to even value
4128 	if (!do8bitIO)
4129 		insw(ai->dev->base_addr+DATA0+whichbap, pu16Dst, bytelen>>1);
4130 	else
4131 		insb(ai->dev->base_addr+DATA0+whichbap, pu16Dst, bytelen);
4132 	return SUCCESS;
4133 }
4134 
4135 /* requires call to bap_setup() first */
bap_write(struct airo_info * ai,const __le16 * pu16Src,int bytelen,int whichbap)4136 static int bap_write(struct airo_info *ai, const __le16 *pu16Src,
4137 		     int bytelen, int whichbap)
4138 {
4139 	bytelen = (bytelen + 1) & (~1); // round up to even value
4140 	if (!do8bitIO)
4141 		outsw(ai->dev->base_addr+DATA0+whichbap,
4142 		       pu16Src, bytelen>>1);
4143 	else
4144 		outsb(ai->dev->base_addr+DATA0+whichbap, pu16Src, bytelen);
4145 	return SUCCESS;
4146 }
4147 
PC4500_accessrid(struct airo_info * ai,u16 rid,u16 accmd)4148 static int PC4500_accessrid(struct airo_info *ai, u16 rid, u16 accmd)
4149 {
4150 	Cmd cmd; /* for issuing commands */
4151 	Resp rsp; /* response from commands */
4152 	u16 status;
4153 
4154 	memset(&cmd, 0, sizeof(cmd));
4155 	cmd.cmd = accmd;
4156 	cmd.parm0 = rid;
4157 	status = issuecommand(ai, &cmd, &rsp);
4158 	if (status != 0) return status;
4159 	if ((rsp.status & 0x7F00) != 0) {
4160 		return (accmd << 8) + (rsp.rsp0 & 0xFF);
4161 	}
4162 	return 0;
4163 }
4164 
4165 /*  Note, that we are using BAP1 which is also used by transmit, so
4166  *  we must get a lock. */
PC4500_readrid(struct airo_info * ai,u16 rid,void * pBuf,int len,int lock)4167 static int PC4500_readrid(struct airo_info *ai, u16 rid, void *pBuf, int len, int lock)
4168 {
4169 	u16 status;
4170         int rc = SUCCESS;
4171 
4172 	if (lock) {
4173 		if (down_interruptible(&ai->sem))
4174 			return ERROR;
4175 	}
4176 	if (test_bit(FLAG_MPI,&ai->flags)) {
4177 		Cmd cmd;
4178 		Resp rsp;
4179 
4180 		memset(&cmd, 0, sizeof(cmd));
4181 		memset(&rsp, 0, sizeof(rsp));
4182 		ai->config_desc.rid_desc.valid = 1;
4183 		ai->config_desc.rid_desc.len = RIDSIZE;
4184 		ai->config_desc.rid_desc.rid = 0;
4185 		ai->config_desc.rid_desc.host_addr = ai->ridbus;
4186 
4187 		cmd.cmd = CMD_ACCESS;
4188 		cmd.parm0 = rid;
4189 
4190 		memcpy_toio(ai->config_desc.card_ram_off,
4191 			&ai->config_desc.rid_desc, sizeof(Rid));
4192 
4193 		rc = issuecommand(ai, &cmd, &rsp);
4194 
4195 		if (rsp.status & 0x7f00)
4196 			rc = rsp.rsp0;
4197 		if (!rc)
4198 			memcpy(pBuf, ai->config_desc.virtual_host_addr, len);
4199 		goto done;
4200 	} else {
4201 		if ((status = PC4500_accessrid(ai, rid, CMD_ACCESS))!=SUCCESS) {
4202 	                rc = status;
4203 	                goto done;
4204 	        }
4205 		if (bap_setup(ai, rid, 0, BAP1) != SUCCESS) {
4206 			rc = ERROR;
4207 	                goto done;
4208 	        }
4209 		// read the rid length field
4210 		bap_read(ai, pBuf, 2, BAP1);
4211 		// length for remaining part of rid
4212 		len = min(len, (int)le16_to_cpu(*(__le16*)pBuf)) - 2;
4213 
4214 		if (len <= 2) {
4215 			airo_print_err(ai->dev->name,
4216 				"Rid %x has a length of %d which is too short",
4217 				(int)rid, (int)len);
4218 			rc = ERROR;
4219 	                goto done;
4220 		}
4221 		// read remainder of the rid
4222 		rc = bap_read(ai, ((__le16*)pBuf)+1, len, BAP1);
4223 	}
4224 done:
4225 	if (lock)
4226 		up(&ai->sem);
4227 	return rc;
4228 }
4229 
4230 /*  Note, that we are using BAP1 which is also used by transmit, so
4231  *  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)4232 static int PC4500_writerid(struct airo_info *ai, u16 rid,
4233 			   const void *pBuf, int len, int lock)
4234 {
4235 	u16 status;
4236 	int rc = SUCCESS;
4237 
4238 	*(__le16*)pBuf = cpu_to_le16((u16)len);
4239 
4240 	if (lock) {
4241 		if (down_interruptible(&ai->sem))
4242 			return ERROR;
4243 	}
4244 	if (test_bit(FLAG_MPI,&ai->flags)) {
4245 		Cmd cmd;
4246 		Resp rsp;
4247 
4248 		if (test_bit(FLAG_ENABLED, &ai->flags) && (RID_WEP_TEMP != rid))
4249 			airo_print_err(ai->dev->name,
4250 				"%s: MAC should be disabled (rid=%04x)",
4251 				__func__, rid);
4252 		memset(&cmd, 0, sizeof(cmd));
4253 		memset(&rsp, 0, sizeof(rsp));
4254 
4255 		ai->config_desc.rid_desc.valid = 1;
4256 		ai->config_desc.rid_desc.len = *((u16 *)pBuf);
4257 		ai->config_desc.rid_desc.rid = 0;
4258 
4259 		cmd.cmd = CMD_WRITERID;
4260 		cmd.parm0 = rid;
4261 
4262 		memcpy_toio(ai->config_desc.card_ram_off,
4263 			&ai->config_desc.rid_desc, sizeof(Rid));
4264 
4265 		if (len < 4 || len > 2047) {
4266 			airo_print_err(ai->dev->name, "%s: len=%d", __func__, len);
4267 			rc = -1;
4268 		} else {
4269 			memcpy(ai->config_desc.virtual_host_addr,
4270 				pBuf, len);
4271 
4272 			rc = issuecommand(ai, &cmd, &rsp);
4273 			if ((rc & 0xff00) != 0) {
4274 				airo_print_err(ai->dev->name, "%s: Write rid Error %d",
4275 						__func__, rc);
4276 				airo_print_err(ai->dev->name, "%s: Cmd=%04x",
4277 						__func__, cmd.cmd);
4278 			}
4279 
4280 			if ((rsp.status & 0x7f00))
4281 				rc = rsp.rsp0;
4282 		}
4283 	} else {
4284 		// --- first access so that we can write the rid data
4285 		if ((status = PC4500_accessrid(ai, rid, CMD_ACCESS)) != 0) {
4286 	                rc = status;
4287 	                goto done;
4288 	        }
4289 		// --- now write the rid data
4290 		if (bap_setup(ai, rid, 0, BAP1) != SUCCESS) {
4291 	                rc = ERROR;
4292 	                goto done;
4293 	        }
4294 		bap_write(ai, pBuf, len, BAP1);
4295 		// ---now commit the rid data
4296 		rc = PC4500_accessrid(ai, rid, 0x100|CMD_ACCESS);
4297 	}
4298 done:
4299 	if (lock)
4300 		up(&ai->sem);
4301         return rc;
4302 }
4303 
4304 /* Allocates a FID to be used for transmitting packets.  We only use
4305    one for now. */
transmit_allocate(struct airo_info * ai,int lenPayload,int raw)4306 static u16 transmit_allocate(struct airo_info *ai, int lenPayload, int raw)
4307 {
4308 	unsigned int loop = 3000;
4309 	Cmd cmd;
4310 	Resp rsp;
4311 	u16 txFid;
4312 	__le16 txControl;
4313 
4314 	cmd.cmd = CMD_ALLOCATETX;
4315 	cmd.parm0 = lenPayload;
4316 	if (down_interruptible(&ai->sem))
4317 		return ERROR;
4318 	if (issuecommand(ai, &cmd, &rsp) != SUCCESS) {
4319 		txFid = ERROR;
4320 		goto done;
4321 	}
4322 	if ((rsp.status & 0xFF00) != 0) {
4323 		txFid = ERROR;
4324 		goto done;
4325 	}
4326 	/* wait for the allocate event/indication
4327 	 * It makes me kind of nervous that this can just sit here and spin,
4328 	 * but in practice it only loops like four times. */
4329 	while (((IN4500(ai, EVSTAT) & EV_ALLOC) == 0) && --loop);
4330 	if (!loop) {
4331 		txFid = ERROR;
4332 		goto done;
4333 	}
4334 
4335 	// get the allocated fid and acknowledge
4336 	txFid = IN4500(ai, TXALLOCFID);
4337 	OUT4500(ai, EVACK, EV_ALLOC);
4338 
4339 	/*  The CARD is pretty cool since it converts the ethernet packet
4340 	 *  into 802.11.  Also note that we don't release the FID since we
4341 	 *  will be using the same one over and over again. */
4342 	/*  We only have to setup the control once since we are not
4343 	 *  releasing the fid. */
4344 	if (raw)
4345 		txControl = cpu_to_le16(TXCTL_TXOK | TXCTL_TXEX | TXCTL_802_11
4346 			| TXCTL_ETHERNET | TXCTL_NORELEASE);
4347 	else
4348 		txControl = cpu_to_le16(TXCTL_TXOK | TXCTL_TXEX | TXCTL_802_3
4349 			| TXCTL_ETHERNET | TXCTL_NORELEASE);
4350 	if (bap_setup(ai, txFid, 0x0008, BAP1) != SUCCESS)
4351 		txFid = ERROR;
4352 	else
4353 		bap_write(ai, &txControl, sizeof(txControl), BAP1);
4354 
4355 done:
4356 	up(&ai->sem);
4357 
4358 	return txFid;
4359 }
4360 
4361 /* In general BAP1 is dedicated to transmiting packets.  However,
4362    since we need a BAP when accessing RIDs, we also use BAP1 for that.
4363    Make sure the BAP1 spinlock is held when this is called. */
transmit_802_3_packet(struct airo_info * ai,int len,char * pPacket)4364 static int transmit_802_3_packet(struct airo_info *ai, int len, char *pPacket)
4365 {
4366 	__le16 payloadLen;
4367 	Cmd cmd;
4368 	Resp rsp;
4369 	int miclen = 0;
4370 	u16 txFid = len;
4371 	MICBuffer pMic;
4372 
4373 	len >>= 16;
4374 
4375 	if (len <= ETH_ALEN * 2) {
4376 		airo_print_warn(ai->dev->name, "Short packet %d", len);
4377 		return ERROR;
4378 	}
4379 	len -= ETH_ALEN * 2;
4380 
4381 	if (test_bit(FLAG_MIC_CAPABLE, &ai->flags) && ai->micstats.enabled &&
4382 	    (ntohs(((__be16 *)pPacket)[6]) != 0x888E)) {
4383 		if (encapsulate(ai, (etherHead *)pPacket,&pMic, len) != SUCCESS)
4384 			return ERROR;
4385 		miclen = sizeof(pMic);
4386 	}
4387 	// packet is destination[6], source[6], payload[len-12]
4388 	// write the payload length and dst/src/payload
4389 	if (bap_setup(ai, txFid, 0x0036, BAP1) != SUCCESS) return ERROR;
4390 	/* The hardware addresses aren't counted as part of the payload, so
4391 	 * we have to subtract the 12 bytes for the addresses off */
4392 	payloadLen = cpu_to_le16(len + miclen);
4393 	bap_write(ai, &payloadLen, sizeof(payloadLen), BAP1);
4394 	bap_write(ai, (__le16*)pPacket, sizeof(etherHead), BAP1);
4395 	if (miclen)
4396 		bap_write(ai, (__le16*)&pMic, miclen, BAP1);
4397 	bap_write(ai, (__le16*)(pPacket + sizeof(etherHead)), len, BAP1);
4398 	// issue the transmit command
4399 	memset(&cmd, 0, sizeof(cmd));
4400 	cmd.cmd = CMD_TRANSMIT;
4401 	cmd.parm0 = txFid;
4402 	if (issuecommand(ai, &cmd, &rsp) != SUCCESS) return ERROR;
4403 	if ((rsp.status & 0xFF00) != 0) return ERROR;
4404 	return SUCCESS;
4405 }
4406 
transmit_802_11_packet(struct airo_info * ai,int len,char * pPacket)4407 static int transmit_802_11_packet(struct airo_info *ai, int len, char *pPacket)
4408 {
4409 	__le16 fc, payloadLen;
4410 	Cmd cmd;
4411 	Resp rsp;
4412 	int hdrlen;
4413 	static u8 tail[(30-10) + 2 + 6] = {[30-10] = 6};
4414 	/* padding of header to full size + le16 gaplen (6) + gaplen bytes */
4415 	u16 txFid = len;
4416 	len >>= 16;
4417 
4418 	fc = *(__le16*)pPacket;
4419 	hdrlen = header_len(fc);
4420 
4421 	if (len < hdrlen) {
4422 		airo_print_warn(ai->dev->name, "Short packet %d", len);
4423 		return ERROR;
4424 	}
4425 
4426 	/* packet is 802.11 header +  payload
4427 	 * write the payload length and dst/src/payload */
4428 	if (bap_setup(ai, txFid, 6, BAP1) != SUCCESS) return ERROR;
4429 	/* The 802.11 header aren't counted as part of the payload, so
4430 	 * we have to subtract the header bytes off */
4431 	payloadLen = cpu_to_le16(len-hdrlen);
4432 	bap_write(ai, &payloadLen, sizeof(payloadLen), BAP1);
4433 	if (bap_setup(ai, txFid, 0x0014, BAP1) != SUCCESS) return ERROR;
4434 	bap_write(ai, (__le16 *)pPacket, hdrlen, BAP1);
4435 	bap_write(ai, (__le16 *)(tail + (hdrlen - 10)), 38 - hdrlen, BAP1);
4436 
4437 	bap_write(ai, (__le16 *)(pPacket + hdrlen), len - hdrlen, BAP1);
4438 	// issue the transmit command
4439 	memset(&cmd, 0, sizeof(cmd));
4440 	cmd.cmd = CMD_TRANSMIT;
4441 	cmd.parm0 = txFid;
4442 	if (issuecommand(ai, &cmd, &rsp) != SUCCESS) return ERROR;
4443 	if ((rsp.status & 0xFF00) != 0) return ERROR;
4444 	return SUCCESS;
4445 }
4446 
4447 /*
4448  *  This is the proc_fs routines.  It is a bit messier than I would
4449  *  like!  Feel free to clean it up!
4450  */
4451 
4452 static ssize_t proc_read(struct file *file,
4453 			  char __user *buffer,
4454 			  size_t len,
4455 			  loff_t *offset);
4456 
4457 static ssize_t proc_write(struct file *file,
4458 			   const char __user *buffer,
4459 			   size_t len,
4460 			   loff_t *offset);
4461 static int proc_close(struct inode *inode, struct file *file);
4462 
4463 static int proc_stats_open(struct inode *inode, struct file *file);
4464 static int proc_statsdelta_open(struct inode *inode, struct file *file);
4465 static int proc_status_open(struct inode *inode, struct file *file);
4466 static int proc_SSID_open(struct inode *inode, struct file *file);
4467 static int proc_APList_open(struct inode *inode, struct file *file);
4468 static int proc_BSSList_open(struct inode *inode, struct file *file);
4469 static int proc_config_open(struct inode *inode, struct file *file);
4470 static int proc_wepkey_open(struct inode *inode, struct file *file);
4471 
4472 static const struct proc_ops proc_statsdelta_ops = {
4473 	.proc_read	= proc_read,
4474 	.proc_open	= proc_statsdelta_open,
4475 	.proc_release	= proc_close,
4476 	.proc_lseek	= default_llseek,
4477 };
4478 
4479 static const struct proc_ops proc_stats_ops = {
4480 	.proc_read	= proc_read,
4481 	.proc_open	= proc_stats_open,
4482 	.proc_release	= proc_close,
4483 	.proc_lseek	= default_llseek,
4484 };
4485 
4486 static const struct proc_ops proc_status_ops = {
4487 	.proc_read	= proc_read,
4488 	.proc_open	= proc_status_open,
4489 	.proc_release	= proc_close,
4490 	.proc_lseek	= default_llseek,
4491 };
4492 
4493 static const struct proc_ops proc_SSID_ops = {
4494 	.proc_read	= proc_read,
4495 	.proc_write	= proc_write,
4496 	.proc_open	= proc_SSID_open,
4497 	.proc_release	= proc_close,
4498 	.proc_lseek	= default_llseek,
4499 };
4500 
4501 static const struct proc_ops proc_BSSList_ops = {
4502 	.proc_read	= proc_read,
4503 	.proc_write	= proc_write,
4504 	.proc_open	= proc_BSSList_open,
4505 	.proc_release	= proc_close,
4506 	.proc_lseek	= default_llseek,
4507 };
4508 
4509 static const struct proc_ops proc_APList_ops = {
4510 	.proc_read	= proc_read,
4511 	.proc_write	= proc_write,
4512 	.proc_open	= proc_APList_open,
4513 	.proc_release	= proc_close,
4514 	.proc_lseek	= default_llseek,
4515 };
4516 
4517 static const struct proc_ops proc_config_ops = {
4518 	.proc_read	= proc_read,
4519 	.proc_write	= proc_write,
4520 	.proc_open	= proc_config_open,
4521 	.proc_release	= proc_close,
4522 	.proc_lseek	= default_llseek,
4523 };
4524 
4525 static const struct proc_ops proc_wepkey_ops = {
4526 	.proc_read	= proc_read,
4527 	.proc_write	= proc_write,
4528 	.proc_open	= proc_wepkey_open,
4529 	.proc_release	= proc_close,
4530 	.proc_lseek	= default_llseek,
4531 };
4532 
4533 static struct proc_dir_entry *airo_entry;
4534 
4535 struct proc_data {
4536 	int release_buffer;
4537 	int readlen;
4538 	char *rbuffer;
4539 	int writelen;
4540 	int maxwritelen;
4541 	char *wbuffer;
4542 	void (*on_close) (struct inode *, struct file *);
4543 };
4544 
setup_proc_entry(struct net_device * dev,struct airo_info * apriv)4545 static int setup_proc_entry(struct net_device *dev,
4546 			     struct airo_info *apriv)
4547 {
4548 	struct proc_dir_entry *entry;
4549 
4550 	/* First setup the device directory */
4551 	strcpy(apriv->proc_name, dev->name);
4552 	apriv->proc_entry = proc_mkdir_mode(apriv->proc_name, airo_perm,
4553 					    airo_entry);
4554 	if (!apriv->proc_entry)
4555 		return -ENOMEM;
4556 	proc_set_user(apriv->proc_entry, proc_kuid, proc_kgid);
4557 
4558 	/* Setup the StatsDelta */
4559 	entry = proc_create_data("StatsDelta", 0444 & proc_perm,
4560 				 apriv->proc_entry, &proc_statsdelta_ops, dev);
4561 	if (!entry)
4562 		goto fail;
4563 	proc_set_user(entry, proc_kuid, proc_kgid);
4564 
4565 	/* Setup the Stats */
4566 	entry = proc_create_data("Stats", 0444 & proc_perm,
4567 				 apriv->proc_entry, &proc_stats_ops, dev);
4568 	if (!entry)
4569 		goto fail;
4570 	proc_set_user(entry, proc_kuid, proc_kgid);
4571 
4572 	/* Setup the Status */
4573 	entry = proc_create_data("Status", 0444 & proc_perm,
4574 				 apriv->proc_entry, &proc_status_ops, dev);
4575 	if (!entry)
4576 		goto fail;
4577 	proc_set_user(entry, proc_kuid, proc_kgid);
4578 
4579 	/* Setup the Config */
4580 	entry = proc_create_data("Config", proc_perm,
4581 				 apriv->proc_entry, &proc_config_ops, dev);
4582 	if (!entry)
4583 		goto fail;
4584 	proc_set_user(entry, proc_kuid, proc_kgid);
4585 
4586 	/* Setup the SSID */
4587 	entry = proc_create_data("SSID", proc_perm,
4588 				 apriv->proc_entry, &proc_SSID_ops, dev);
4589 	if (!entry)
4590 		goto fail;
4591 	proc_set_user(entry, proc_kuid, proc_kgid);
4592 
4593 	/* Setup the APList */
4594 	entry = proc_create_data("APList", proc_perm,
4595 				 apriv->proc_entry, &proc_APList_ops, dev);
4596 	if (!entry)
4597 		goto fail;
4598 	proc_set_user(entry, proc_kuid, proc_kgid);
4599 
4600 	/* Setup the BSSList */
4601 	entry = proc_create_data("BSSList", proc_perm,
4602 				 apriv->proc_entry, &proc_BSSList_ops, dev);
4603 	if (!entry)
4604 		goto fail;
4605 	proc_set_user(entry, proc_kuid, proc_kgid);
4606 
4607 	/* Setup the WepKey */
4608 	entry = proc_create_data("WepKey", proc_perm,
4609 				 apriv->proc_entry, &proc_wepkey_ops, dev);
4610 	if (!entry)
4611 		goto fail;
4612 	proc_set_user(entry, proc_kuid, proc_kgid);
4613 	return 0;
4614 
4615 fail:
4616 	remove_proc_subtree(apriv->proc_name, airo_entry);
4617 	return -ENOMEM;
4618 }
4619 
takedown_proc_entry(struct net_device * dev,struct airo_info * apriv)4620 static int takedown_proc_entry(struct net_device *dev,
4621 				struct airo_info *apriv)
4622 {
4623 	remove_proc_subtree(apriv->proc_name, airo_entry);
4624 	return 0;
4625 }
4626 
4627 /*
4628  *  What we want from the proc_fs is to be able to efficiently read
4629  *  and write the configuration.  To do this, we want to read the
4630  *  configuration when the file is opened and write it when the file is
4631  *  closed.  So basically we allocate a read buffer at open and fill it
4632  *  with data, and allocate a write buffer and read it at close.
4633  */
4634 
4635 /*
4636  *  The read routine is generic, it relies on the preallocated rbuffer
4637  *  to supply the data.
4638  */
proc_read(struct file * file,char __user * buffer,size_t len,loff_t * offset)4639 static ssize_t proc_read(struct file *file,
4640 			  char __user *buffer,
4641 			  size_t len,
4642 			  loff_t *offset)
4643 {
4644 	struct proc_data *priv = file->private_data;
4645 
4646 	if (!priv->rbuffer)
4647 		return -EINVAL;
4648 
4649 	return simple_read_from_buffer(buffer, len, offset, priv->rbuffer,
4650 					priv->readlen);
4651 }
4652 
4653 /*
4654  *  The write routine is generic, it fills in a preallocated rbuffer
4655  *  to supply the data.
4656  */
proc_write(struct file * file,const char __user * buffer,size_t len,loff_t * offset)4657 static ssize_t proc_write(struct file *file,
4658 			   const char __user *buffer,
4659 			   size_t len,
4660 			   loff_t *offset)
4661 {
4662 	ssize_t ret;
4663 	struct proc_data *priv = file->private_data;
4664 
4665 	if (!priv->wbuffer)
4666 		return -EINVAL;
4667 
4668 	ret = simple_write_to_buffer(priv->wbuffer, priv->maxwritelen, offset,
4669 					buffer, len);
4670 	if (ret > 0)
4671 		priv->writelen = max_t(int, priv->writelen, *offset);
4672 
4673 	return ret;
4674 }
4675 
proc_status_open(struct inode * inode,struct file * file)4676 static int proc_status_open(struct inode *inode, struct file *file)
4677 {
4678 	struct proc_data *data;
4679 	struct net_device *dev = PDE_DATA(inode);
4680 	struct airo_info *apriv = dev->ml_priv;
4681 	CapabilityRid cap_rid;
4682 	StatusRid status_rid;
4683 	u16 mode;
4684 	int i;
4685 
4686 	if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
4687 		return -ENOMEM;
4688 	data = file->private_data;
4689 	if ((data->rbuffer = kmalloc(2048, GFP_KERNEL)) == NULL) {
4690 		kfree (file->private_data);
4691 		return -ENOMEM;
4692 	}
4693 
4694 	readStatusRid(apriv, &status_rid, 1);
4695 	readCapabilityRid(apriv, &cap_rid, 1);
4696 
4697 	mode = le16_to_cpu(status_rid.mode);
4698 
4699         i = sprintf(data->rbuffer, "Status: %s%s%s%s%s%s%s%s%s\n",
4700                     mode & 1 ? "CFG ": "",
4701                     mode & 2 ? "ACT ": "",
4702                     mode & 0x10 ? "SYN ": "",
4703                     mode & 0x20 ? "LNK ": "",
4704                     mode & 0x40 ? "LEAP ": "",
4705                     mode & 0x80 ? "PRIV ": "",
4706                     mode & 0x100 ? "KEY ": "",
4707                     mode & 0x200 ? "WEP ": "",
4708                     mode & 0x8000 ? "ERR ": "");
4709 	sprintf(data->rbuffer+i, "Mode: %x\n"
4710 		 "Signal Strength: %d\n"
4711 		 "Signal Quality: %d\n"
4712 		 "SSID: %-.*s\n"
4713 		 "AP: %-.16s\n"
4714 		 "Freq: %d\n"
4715 		 "BitRate: %dmbs\n"
4716 		 "Driver Version: %s\n"
4717 		 "Device: %s\nManufacturer: %s\nFirmware Version: %s\n"
4718 		 "Radio type: %x\nCountry: %x\nHardware Version: %x\n"
4719 		 "Software Version: %x\nSoftware Subversion: %x\n"
4720 		 "Boot block version: %x\n",
4721 		 le16_to_cpu(status_rid.mode),
4722 		 le16_to_cpu(status_rid.normalizedSignalStrength),
4723 		 le16_to_cpu(status_rid.signalQuality),
4724 		 le16_to_cpu(status_rid.SSIDlen),
4725 		 status_rid.SSID,
4726 		 status_rid.apName,
4727 		 le16_to_cpu(status_rid.channel),
4728 		 le16_to_cpu(status_rid.currentXmitRate) / 2,
4729 		 version,
4730 		 cap_rid.prodName,
4731 		 cap_rid.manName,
4732 		 cap_rid.prodVer,
4733 		 le16_to_cpu(cap_rid.radioType),
4734 		 le16_to_cpu(cap_rid.country),
4735 		 le16_to_cpu(cap_rid.hardVer),
4736 		 le16_to_cpu(cap_rid.softVer),
4737 		 le16_to_cpu(cap_rid.softSubVer),
4738 		 le16_to_cpu(cap_rid.bootBlockVer));
4739 	data->readlen = strlen(data->rbuffer);
4740 	return 0;
4741 }
4742 
4743 static int proc_stats_rid_open(struct inode*, struct file*, u16);
proc_statsdelta_open(struct inode * inode,struct file * file)4744 static int proc_statsdelta_open(struct inode *inode,
4745 				 struct file *file)
4746 {
4747 	if (file->f_mode&FMODE_WRITE) {
4748 		return proc_stats_rid_open(inode, file, RID_STATSDELTACLEAR);
4749 	}
4750 	return proc_stats_rid_open(inode, file, RID_STATSDELTA);
4751 }
4752 
proc_stats_open(struct inode * inode,struct file * file)4753 static int proc_stats_open(struct inode *inode, struct file *file)
4754 {
4755 	return proc_stats_rid_open(inode, file, RID_STATS);
4756 }
4757 
proc_stats_rid_open(struct inode * inode,struct file * file,u16 rid)4758 static int proc_stats_rid_open(struct inode *inode,
4759 				struct file *file,
4760 				u16 rid)
4761 {
4762 	struct proc_data *data;
4763 	struct net_device *dev = PDE_DATA(inode);
4764 	struct airo_info *apriv = dev->ml_priv;
4765 	StatsRid stats;
4766 	int i, j;
4767 	__le32 *vals = stats.vals;
4768 	int len;
4769 
4770 	if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
4771 		return -ENOMEM;
4772 	data = file->private_data;
4773 	if ((data->rbuffer = kmalloc(4096, GFP_KERNEL)) == NULL) {
4774 		kfree (file->private_data);
4775 		return -ENOMEM;
4776 	}
4777 
4778 	readStatsRid(apriv, &stats, rid, 1);
4779 	len = le16_to_cpu(stats.len);
4780 
4781         j = 0;
4782 	for (i = 0; statsLabels[i]!=(char *)-1 && i*4<len; i++) {
4783 		if (!statsLabels[i]) continue;
4784 		if (j+strlen(statsLabels[i])+16>4096) {
4785 			airo_print_warn(apriv->dev->name,
4786 			       "Potentially disastrous buffer overflow averted!");
4787 			break;
4788 		}
4789 		j+=sprintf(data->rbuffer+j, "%s: %u\n", statsLabels[i],
4790 				le32_to_cpu(vals[i]));
4791 	}
4792 	if (i*4 >= len) {
4793 		airo_print_warn(apriv->dev->name, "Got a short rid");
4794 	}
4795 	data->readlen = j;
4796 	return 0;
4797 }
4798 
get_dec_u16(char * buffer,int * start,int limit)4799 static int get_dec_u16(char *buffer, int *start, int limit)
4800 {
4801 	u16 value;
4802 	int valid = 0;
4803 	for (value = 0; *start < limit && buffer[*start] >= '0' &&
4804 			buffer[*start] <= '9'; (*start)++) {
4805 		valid = 1;
4806 		value *= 10;
4807 		value += buffer[*start] - '0';
4808 	}
4809 	if (!valid) return -1;
4810 	return value;
4811 }
4812 
4813 static int airo_config_commit(struct net_device *dev,
4814 			      struct iw_request_info *info, void *zwrq,
4815 			      char *extra);
4816 
sniffing_mode(struct airo_info * ai)4817 static inline int sniffing_mode(struct airo_info *ai)
4818 {
4819 	return (le16_to_cpu(ai->config.rmode) & le16_to_cpu(RXMODE_MASK)) >=
4820 		le16_to_cpu(RXMODE_RFMON);
4821 }
4822 
proc_config_on_close(struct inode * inode,struct file * file)4823 static void proc_config_on_close(struct inode *inode, struct file *file)
4824 {
4825 	struct proc_data *data = file->private_data;
4826 	struct net_device *dev = PDE_DATA(inode);
4827 	struct airo_info *ai = dev->ml_priv;
4828 	char *line;
4829 
4830 	if (!data->writelen) return;
4831 
4832 	readConfigRid(ai, 1);
4833 	set_bit (FLAG_COMMIT, &ai->flags);
4834 
4835 	line = data->wbuffer;
4836 	while (line[0]) {
4837 /*** Mode processing */
4838 		if (!strncmp(line, "Mode: ", 6)) {
4839 			line += 6;
4840 			if (sniffing_mode(ai))
4841 				set_bit (FLAG_RESET, &ai->flags);
4842 			ai->config.rmode &= ~RXMODE_FULL_MASK;
4843 			clear_bit (FLAG_802_11, &ai->flags);
4844 			ai->config.opmode &= ~MODE_CFG_MASK;
4845 			ai->config.scanMode = SCANMODE_ACTIVE;
4846 			if (line[0] == 'a') {
4847 				ai->config.opmode |= MODE_STA_IBSS;
4848 			} else {
4849 				ai->config.opmode |= MODE_STA_ESS;
4850 				if (line[0] == 'r') {
4851 					ai->config.rmode |= RXMODE_RFMON | RXMODE_DISABLE_802_3_HEADER;
4852 					ai->config.scanMode = SCANMODE_PASSIVE;
4853 					set_bit (FLAG_802_11, &ai->flags);
4854 				} else if (line[0] == 'y') {
4855 					ai->config.rmode |= RXMODE_RFMON_ANYBSS | RXMODE_DISABLE_802_3_HEADER;
4856 					ai->config.scanMode = SCANMODE_PASSIVE;
4857 					set_bit (FLAG_802_11, &ai->flags);
4858 				} else if (line[0] == 'l')
4859 					ai->config.rmode |= RXMODE_LANMON;
4860 			}
4861 			set_bit (FLAG_COMMIT, &ai->flags);
4862 		}
4863 
4864 /*** Radio status */
4865 		else if (!strncmp(line,"Radio: ", 7)) {
4866 			line += 7;
4867 			if (!strncmp(line,"off", 3)) {
4868 				set_bit (FLAG_RADIO_OFF, &ai->flags);
4869 			} else {
4870 				clear_bit (FLAG_RADIO_OFF, &ai->flags);
4871 			}
4872 		}
4873 /*** NodeName processing */
4874 		else if (!strncmp(line, "NodeName: ", 10)) {
4875 			int j;
4876 
4877 			line += 10;
4878 			memset(ai->config.nodeName, 0, 16);
4879 /* Do the name, assume a space between the mode and node name */
4880 			for (j = 0; j < 16 && line[j] != '\n'; j++) {
4881 				ai->config.nodeName[j] = line[j];
4882 			}
4883 			set_bit (FLAG_COMMIT, &ai->flags);
4884 		}
4885 
4886 /*** PowerMode processing */
4887 		else if (!strncmp(line, "PowerMode: ", 11)) {
4888 			line += 11;
4889 			if (!strncmp(line, "PSPCAM", 6)) {
4890 				ai->config.powerSaveMode = POWERSAVE_PSPCAM;
4891 				set_bit (FLAG_COMMIT, &ai->flags);
4892 			} else if (!strncmp(line, "PSP", 3)) {
4893 				ai->config.powerSaveMode = POWERSAVE_PSP;
4894 				set_bit (FLAG_COMMIT, &ai->flags);
4895 			} else {
4896 				ai->config.powerSaveMode = POWERSAVE_CAM;
4897 				set_bit (FLAG_COMMIT, &ai->flags);
4898 			}
4899 		} else if (!strncmp(line, "DataRates: ", 11)) {
4900 			int v, i = 0, k = 0; /* i is index into line,
4901 						k is index to rates */
4902 
4903 			line += 11;
4904 			while ((v = get_dec_u16(line, &i, 3))!=-1) {
4905 				ai->config.rates[k++] = (u8)v;
4906 				line += i + 1;
4907 				i = 0;
4908 			}
4909 			set_bit (FLAG_COMMIT, &ai->flags);
4910 		} else if (!strncmp(line, "Channel: ", 9)) {
4911 			int v, i = 0;
4912 			line += 9;
4913 			v = get_dec_u16(line, &i, i+3);
4914 			if (v != -1) {
4915 				ai->config.channelSet = cpu_to_le16(v);
4916 				set_bit (FLAG_COMMIT, &ai->flags);
4917 			}
4918 		} else if (!strncmp(line, "XmitPower: ", 11)) {
4919 			int v, i = 0;
4920 			line += 11;
4921 			v = get_dec_u16(line, &i, i+3);
4922 			if (v != -1) {
4923 				ai->config.txPower = cpu_to_le16(v);
4924 				set_bit (FLAG_COMMIT, &ai->flags);
4925 			}
4926 		} else if (!strncmp(line, "WEP: ", 5)) {
4927 			line += 5;
4928 			switch(line[0]) {
4929 			case 's':
4930 				set_auth_type(ai, AUTH_SHAREDKEY);
4931 				break;
4932 			case 'e':
4933 				set_auth_type(ai, AUTH_ENCRYPT);
4934 				break;
4935 			default:
4936 				set_auth_type(ai, AUTH_OPEN);
4937 				break;
4938 			}
4939 			set_bit (FLAG_COMMIT, &ai->flags);
4940 		} else if (!strncmp(line, "LongRetryLimit: ", 16)) {
4941 			int v, i = 0;
4942 
4943 			line += 16;
4944 			v = get_dec_u16(line, &i, 3);
4945 			v = (v<0) ? 0 : ((v>255) ? 255 : v);
4946 			ai->config.longRetryLimit = cpu_to_le16(v);
4947 			set_bit (FLAG_COMMIT, &ai->flags);
4948 		} else if (!strncmp(line, "ShortRetryLimit: ", 17)) {
4949 			int v, i = 0;
4950 
4951 			line += 17;
4952 			v = get_dec_u16(line, &i, 3);
4953 			v = (v<0) ? 0 : ((v>255) ? 255 : v);
4954 			ai->config.shortRetryLimit = cpu_to_le16(v);
4955 			set_bit (FLAG_COMMIT, &ai->flags);
4956 		} else if (!strncmp(line, "RTSThreshold: ", 14)) {
4957 			int v, i = 0;
4958 
4959 			line += 14;
4960 			v = get_dec_u16(line, &i, 4);
4961 			v = (v<0) ? 0 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v);
4962 			ai->config.rtsThres = cpu_to_le16(v);
4963 			set_bit (FLAG_COMMIT, &ai->flags);
4964 		} else if (!strncmp(line, "TXMSDULifetime: ", 16)) {
4965 			int v, i = 0;
4966 
4967 			line += 16;
4968 			v = get_dec_u16(line, &i, 5);
4969 			v = (v<0) ? 0 : v;
4970 			ai->config.txLifetime = cpu_to_le16(v);
4971 			set_bit (FLAG_COMMIT, &ai->flags);
4972 		} else if (!strncmp(line, "RXMSDULifetime: ", 16)) {
4973 			int v, i = 0;
4974 
4975 			line += 16;
4976 			v = get_dec_u16(line, &i, 5);
4977 			v = (v<0) ? 0 : v;
4978 			ai->config.rxLifetime = cpu_to_le16(v);
4979 			set_bit (FLAG_COMMIT, &ai->flags);
4980 		} else if (!strncmp(line, "TXDiversity: ", 13)) {
4981 			ai->config.txDiversity =
4982 				(line[13]=='l') ? 1 :
4983 				((line[13]=='r')? 2: 3);
4984 			set_bit (FLAG_COMMIT, &ai->flags);
4985 		} else if (!strncmp(line, "RXDiversity: ", 13)) {
4986 			ai->config.rxDiversity =
4987 				(line[13]=='l') ? 1 :
4988 				((line[13]=='r')? 2: 3);
4989 			set_bit (FLAG_COMMIT, &ai->flags);
4990 		} else if (!strncmp(line, "FragThreshold: ", 15)) {
4991 			int v, i = 0;
4992 
4993 			line += 15;
4994 			v = get_dec_u16(line, &i, 4);
4995 			v = (v<256) ? 256 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v);
4996 			v = v & 0xfffe; /* Make sure its even */
4997 			ai->config.fragThresh = cpu_to_le16(v);
4998 			set_bit (FLAG_COMMIT, &ai->flags);
4999 		} else if (!strncmp(line, "Modulation: ", 12)) {
5000 			line += 12;
5001 			switch(*line) {
5002 			case 'd':  ai->config.modulation = MOD_DEFAULT; set_bit(FLAG_COMMIT, &ai->flags); break;
5003 			case 'c':  ai->config.modulation = MOD_CCK; set_bit(FLAG_COMMIT, &ai->flags); break;
5004 			case 'm':  ai->config.modulation = MOD_MOK; set_bit(FLAG_COMMIT, &ai->flags); break;
5005 			default: airo_print_warn(ai->dev->name, "Unknown modulation");
5006 			}
5007 		} else if (!strncmp(line, "Preamble: ", 10)) {
5008 			line += 10;
5009 			switch(*line) {
5010 			case 'a': ai->config.preamble = PREAMBLE_AUTO; set_bit(FLAG_COMMIT, &ai->flags); break;
5011 			case 'l': ai->config.preamble = PREAMBLE_LONG; set_bit(FLAG_COMMIT, &ai->flags); break;
5012 			case 's': ai->config.preamble = PREAMBLE_SHORT; set_bit(FLAG_COMMIT, &ai->flags); break;
5013 			default: airo_print_warn(ai->dev->name, "Unknown preamble");
5014 			}
5015 		} else {
5016 			airo_print_warn(ai->dev->name, "Couldn't figure out %s", line);
5017 		}
5018 		while (line[0] && line[0] != '\n') line++;
5019 		if (line[0]) line++;
5020 	}
5021 	airo_config_commit(dev, NULL, NULL, NULL);
5022 }
5023 
get_rmode(__le16 mode)5024 static const char *get_rmode(__le16 mode)
5025 {
5026         switch(mode & RXMODE_MASK) {
5027         case RXMODE_RFMON:  return "rfmon";
5028         case RXMODE_RFMON_ANYBSS:  return "yna (any) bss rfmon";
5029         case RXMODE_LANMON:  return "lanmon";
5030         }
5031         return "ESS";
5032 }
5033 
proc_config_open(struct inode * inode,struct file * file)5034 static int proc_config_open(struct inode *inode, struct file *file)
5035 {
5036 	struct proc_data *data;
5037 	struct net_device *dev = PDE_DATA(inode);
5038 	struct airo_info *ai = dev->ml_priv;
5039 	int i;
5040 	__le16 mode;
5041 
5042 	if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5043 		return -ENOMEM;
5044 	data = file->private_data;
5045 	if ((data->rbuffer = kmalloc(2048, GFP_KERNEL)) == NULL) {
5046 		kfree (file->private_data);
5047 		return -ENOMEM;
5048 	}
5049 	if ((data->wbuffer = kzalloc(2048, GFP_KERNEL)) == NULL) {
5050 		kfree (data->rbuffer);
5051 		kfree (file->private_data);
5052 		return -ENOMEM;
5053 	}
5054 	data->maxwritelen = 2048;
5055 	data->on_close = proc_config_on_close;
5056 
5057 	readConfigRid(ai, 1);
5058 
5059 	mode = ai->config.opmode & MODE_CFG_MASK;
5060 	i = sprintf(data->rbuffer,
5061 		     "Mode: %s\n"
5062 		     "Radio: %s\n"
5063 		     "NodeName: %-16s\n"
5064 		     "PowerMode: %s\n"
5065 		     "DataRates: %d %d %d %d %d %d %d %d\n"
5066 		     "Channel: %d\n"
5067 		     "XmitPower: %d\n",
5068 		     mode == MODE_STA_IBSS ? "adhoc" :
5069 		     mode == MODE_STA_ESS ? get_rmode(ai->config.rmode):
5070 		     mode == MODE_AP ? "AP" :
5071 		     mode == MODE_AP_RPTR ? "AP RPTR" : "Error",
5072 		     test_bit(FLAG_RADIO_OFF, &ai->flags) ? "off" : "on",
5073 		     ai->config.nodeName,
5074 		     ai->config.powerSaveMode == POWERSAVE_CAM ? "CAM" :
5075 		     ai->config.powerSaveMode == POWERSAVE_PSP ? "PSP" :
5076 		     ai->config.powerSaveMode == POWERSAVE_PSPCAM ? "PSPCAM" :
5077 		     "Error",
5078 		     (int)ai->config.rates[0],
5079 		     (int)ai->config.rates[1],
5080 		     (int)ai->config.rates[2],
5081 		     (int)ai->config.rates[3],
5082 		     (int)ai->config.rates[4],
5083 		     (int)ai->config.rates[5],
5084 		     (int)ai->config.rates[6],
5085 		     (int)ai->config.rates[7],
5086 		     le16_to_cpu(ai->config.channelSet),
5087 		     le16_to_cpu(ai->config.txPower)
5088 		);
5089 	sprintf(data->rbuffer + i,
5090 		 "LongRetryLimit: %d\n"
5091 		 "ShortRetryLimit: %d\n"
5092 		 "RTSThreshold: %d\n"
5093 		 "TXMSDULifetime: %d\n"
5094 		 "RXMSDULifetime: %d\n"
5095 		 "TXDiversity: %s\n"
5096 		 "RXDiversity: %s\n"
5097 		 "FragThreshold: %d\n"
5098 		 "WEP: %s\n"
5099 		 "Modulation: %s\n"
5100 		 "Preamble: %s\n",
5101 		 le16_to_cpu(ai->config.longRetryLimit),
5102 		 le16_to_cpu(ai->config.shortRetryLimit),
5103 		 le16_to_cpu(ai->config.rtsThres),
5104 		 le16_to_cpu(ai->config.txLifetime),
5105 		 le16_to_cpu(ai->config.rxLifetime),
5106 		 ai->config.txDiversity == 1 ? "left" :
5107 		 ai->config.txDiversity == 2 ? "right" : "both",
5108 		 ai->config.rxDiversity == 1 ? "left" :
5109 		 ai->config.rxDiversity == 2 ? "right" : "both",
5110 		 le16_to_cpu(ai->config.fragThresh),
5111 		 ai->config.authType == AUTH_ENCRYPT ? "encrypt" :
5112 		 ai->config.authType == AUTH_SHAREDKEY ? "shared" : "open",
5113 		 ai->config.modulation == MOD_DEFAULT ? "default" :
5114 		 ai->config.modulation == MOD_CCK ? "cck" :
5115 		 ai->config.modulation == MOD_MOK ? "mok" : "error",
5116 		 ai->config.preamble == PREAMBLE_AUTO ? "auto" :
5117 		 ai->config.preamble == PREAMBLE_LONG ? "long" :
5118 		 ai->config.preamble == PREAMBLE_SHORT ? "short" : "error"
5119 		);
5120 	data->readlen = strlen(data->rbuffer);
5121 	return 0;
5122 }
5123 
proc_SSID_on_close(struct inode * inode,struct file * file)5124 static void proc_SSID_on_close(struct inode *inode, struct file *file)
5125 {
5126 	struct proc_data *data = file->private_data;
5127 	struct net_device *dev = PDE_DATA(inode);
5128 	struct airo_info *ai = dev->ml_priv;
5129 	SsidRid SSID_rid;
5130 	int i;
5131 	char *p = data->wbuffer;
5132 	char *end = p + data->writelen;
5133 
5134 	if (!data->writelen)
5135 		return;
5136 
5137 	*end = '\n'; /* sentinel; we have space for it */
5138 
5139 	memset(&SSID_rid, 0, sizeof(SSID_rid));
5140 
5141 	for (i = 0; i < 3 && p < end; i++) {
5142 		int j = 0;
5143 		/* copy up to 32 characters from this line */
5144 		while (*p != '\n' && j < 32)
5145 			SSID_rid.ssids[i].ssid[j++] = *p++;
5146 		if (j == 0)
5147 			break;
5148 		SSID_rid.ssids[i].len = cpu_to_le16(j);
5149 		/* skip to the beginning of the next line */
5150 		while (*p++ != '\n')
5151 			;
5152 	}
5153 	if (i)
5154 		SSID_rid.len = cpu_to_le16(sizeof(SSID_rid));
5155 	disable_MAC(ai, 1);
5156 	writeSsidRid(ai, &SSID_rid, 1);
5157 	enable_MAC(ai, 1);
5158 }
5159 
proc_APList_on_close(struct inode * inode,struct file * file)5160 static void proc_APList_on_close(struct inode *inode, struct file *file)
5161 {
5162 	struct proc_data *data = file->private_data;
5163 	struct net_device *dev = PDE_DATA(inode);
5164 	struct airo_info *ai = dev->ml_priv;
5165 	APListRid *APList_rid = &ai->APList;
5166 	int i;
5167 
5168 	if (!data->writelen) return;
5169 
5170 	memset(APList_rid, 0, sizeof(*APList_rid));
5171 	APList_rid->len = cpu_to_le16(sizeof(*APList_rid));
5172 
5173 	for (i = 0; i < 4 && data->writelen >= (i + 1) * 6 * 3; i++)
5174 		mac_pton(data->wbuffer + i * 6 * 3, APList_rid->ap[i]);
5175 
5176 	disable_MAC(ai, 1);
5177 	writeAPListRid(ai, APList_rid, 1);
5178 	enable_MAC(ai, 1);
5179 }
5180 
5181 /* 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)5182 static int do_writerid(struct airo_info *ai, u16 rid, const void *rid_data,
5183 			int len, int dummy)
5184 {
5185 	int rc;
5186 
5187 	disable_MAC(ai, 1);
5188 	rc = PC4500_writerid(ai, rid, rid_data, len, 1);
5189 	enable_MAC(ai, 1);
5190 	return rc;
5191 }
5192 
5193 /* Returns the WEP key at the specified index, or -1 if that key does
5194  * not exist.  The buffer is assumed to be at least 16 bytes in length.
5195  */
get_wep_key(struct airo_info * ai,u16 index,char * buf,u16 buflen)5196 static int get_wep_key(struct airo_info *ai, u16 index, char *buf, u16 buflen)
5197 {
5198 	WepKeyRid wkr;
5199 	int rc;
5200 	__le16 lastindex;
5201 
5202 	rc = readWepKeyRid(ai, &wkr, 1, 1);
5203 	if (rc != SUCCESS)
5204 		return -1;
5205 	do {
5206 		lastindex = wkr.kindex;
5207 		if (le16_to_cpu(wkr.kindex) == index) {
5208 			int klen = min_t(int, buflen, le16_to_cpu(wkr.klen));
5209 			memcpy(buf, wkr.key, klen);
5210 			return klen;
5211 		}
5212 		rc = readWepKeyRid(ai, &wkr, 0, 1);
5213 		if (rc != SUCCESS)
5214 			return -1;
5215 	} while (lastindex != wkr.kindex);
5216 	return -1;
5217 }
5218 
get_wep_tx_idx(struct airo_info * ai)5219 static int get_wep_tx_idx(struct airo_info *ai)
5220 {
5221 	WepKeyRid wkr;
5222 	int rc;
5223 	__le16 lastindex;
5224 
5225 	rc = readWepKeyRid(ai, &wkr, 1, 1);
5226 	if (rc != SUCCESS)
5227 		return -1;
5228 	do {
5229 		lastindex = wkr.kindex;
5230 		if (wkr.kindex == cpu_to_le16(0xffff))
5231 			return wkr.mac[0];
5232 		rc = readWepKeyRid(ai, &wkr, 0, 1);
5233 		if (rc != SUCCESS)
5234 			return -1;
5235 	} while (lastindex != wkr.kindex);
5236 	return -1;
5237 }
5238 
set_wep_key(struct airo_info * ai,u16 index,const u8 * key,u16 keylen,int perm,int lock)5239 static int set_wep_key(struct airo_info *ai, u16 index, const u8 *key,
5240 		       u16 keylen, int perm, int lock)
5241 {
5242 	static const unsigned char macaddr[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 };
5243 	WepKeyRid wkr;
5244 	int rc;
5245 
5246 	if (WARN_ON(keylen == 0))
5247 		return -1;
5248 
5249 	memset(&wkr, 0, sizeof(wkr));
5250 	wkr.len = cpu_to_le16(sizeof(wkr));
5251 	wkr.kindex = cpu_to_le16(index);
5252 	wkr.klen = cpu_to_le16(keylen);
5253 	memcpy(wkr.key, key, keylen);
5254 	memcpy(wkr.mac, macaddr, ETH_ALEN);
5255 
5256 	if (perm) disable_MAC(ai, lock);
5257 	rc = writeWepKeyRid(ai, &wkr, perm, lock);
5258 	if (perm) enable_MAC(ai, lock);
5259 	return rc;
5260 }
5261 
set_wep_tx_idx(struct airo_info * ai,u16 index,int perm,int lock)5262 static int set_wep_tx_idx(struct airo_info *ai, u16 index, int perm, int lock)
5263 {
5264 	WepKeyRid wkr;
5265 	int rc;
5266 
5267 	memset(&wkr, 0, sizeof(wkr));
5268 	wkr.len = cpu_to_le16(sizeof(wkr));
5269 	wkr.kindex = cpu_to_le16(0xffff);
5270 	wkr.mac[0] = (char)index;
5271 
5272 	if (perm) {
5273 		ai->defindex = (char)index;
5274 		disable_MAC(ai, lock);
5275 	}
5276 
5277 	rc = writeWepKeyRid(ai, &wkr, perm, lock);
5278 
5279 	if (perm)
5280 		enable_MAC(ai, lock);
5281 	return rc;
5282 }
5283 
proc_wepkey_on_close(struct inode * inode,struct file * file)5284 static void proc_wepkey_on_close(struct inode *inode, struct file *file)
5285 {
5286 	struct proc_data *data;
5287 	struct net_device *dev = PDE_DATA(inode);
5288 	struct airo_info *ai = dev->ml_priv;
5289 	int i, rc;
5290 	u8 key[16];
5291 	u16 index = 0;
5292 	int j = 0;
5293 
5294 	memset(key, 0, sizeof(key));
5295 
5296 	data = file->private_data;
5297 	if (!data->writelen) return;
5298 
5299 	if (data->wbuffer[0] >= '0' && data->wbuffer[0] <= '3' &&
5300 	    (data->wbuffer[1] == ' ' || data->wbuffer[1] == '\n')) {
5301 		index = data->wbuffer[0] - '0';
5302 		if (data->wbuffer[1] == '\n') {
5303 			rc = set_wep_tx_idx(ai, index, 1, 1);
5304 			if (rc < 0) {
5305 				airo_print_err(ai->dev->name, "failed to set "
5306 				               "WEP transmit index to %d: %d.",
5307 				               index, rc);
5308 			}
5309 			return;
5310 		}
5311 		j = 2;
5312 	} else {
5313 		airo_print_err(ai->dev->name, "WepKey passed invalid key index");
5314 		return;
5315 	}
5316 
5317 	for (i = 0; i < 16*3 && data->wbuffer[i+j]; i++) {
5318 		int val;
5319 
5320 		if (i % 3 == 2)
5321 			continue;
5322 
5323 		val = hex_to_bin(data->wbuffer[i+j]);
5324 		if (val < 0) {
5325 			airo_print_err(ai->dev->name, "WebKey passed invalid key hex");
5326 			return;
5327 		}
5328 		switch(i%3) {
5329 		case 0:
5330 			key[i/3] = (u8)val << 4;
5331 			break;
5332 		case 1:
5333 			key[i/3] |= (u8)val;
5334 			break;
5335 		}
5336 	}
5337 
5338 	rc = set_wep_key(ai, index, key, i/3, 1, 1);
5339 	if (rc < 0) {
5340 		airo_print_err(ai->dev->name, "failed to set WEP key at index "
5341 		               "%d: %d.", index, rc);
5342 	}
5343 }
5344 
proc_wepkey_open(struct inode * inode,struct file * file)5345 static int proc_wepkey_open(struct inode *inode, struct file *file)
5346 {
5347 	struct proc_data *data;
5348 	struct net_device *dev = PDE_DATA(inode);
5349 	struct airo_info *ai = dev->ml_priv;
5350 	char *ptr;
5351 	WepKeyRid wkr;
5352 	__le16 lastindex;
5353 	int j = 0;
5354 	int rc;
5355 
5356 	if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5357 		return -ENOMEM;
5358 	memset(&wkr, 0, sizeof(wkr));
5359 	data = file->private_data;
5360 	if ((data->rbuffer = kzalloc(180, GFP_KERNEL)) == NULL) {
5361 		kfree (file->private_data);
5362 		return -ENOMEM;
5363 	}
5364 	data->writelen = 0;
5365 	data->maxwritelen = 80;
5366 	if ((data->wbuffer = kzalloc(80, GFP_KERNEL)) == NULL) {
5367 		kfree (data->rbuffer);
5368 		kfree (file->private_data);
5369 		return -ENOMEM;
5370 	}
5371 	data->on_close = proc_wepkey_on_close;
5372 
5373 	ptr = data->rbuffer;
5374 	strcpy(ptr, "No wep keys\n");
5375 	rc = readWepKeyRid(ai, &wkr, 1, 1);
5376 	if (rc == SUCCESS) do {
5377 		lastindex = wkr.kindex;
5378 		if (wkr.kindex == cpu_to_le16(0xffff)) {
5379 			j += sprintf(ptr+j, "Tx key = %d\n",
5380 				     (int)wkr.mac[0]);
5381 		} else {
5382 			j += sprintf(ptr+j, "Key %d set with length = %d\n",
5383 				     le16_to_cpu(wkr.kindex),
5384 				     le16_to_cpu(wkr.klen));
5385 		}
5386 		readWepKeyRid(ai, &wkr, 0, 1);
5387 	} while ((lastindex != wkr.kindex) && (j < 180-30));
5388 
5389 	data->readlen = strlen(data->rbuffer);
5390 	return 0;
5391 }
5392 
proc_SSID_open(struct inode * inode,struct file * file)5393 static int proc_SSID_open(struct inode *inode, struct file *file)
5394 {
5395 	struct proc_data *data;
5396 	struct net_device *dev = PDE_DATA(inode);
5397 	struct airo_info *ai = dev->ml_priv;
5398 	int i;
5399 	char *ptr;
5400 	SsidRid SSID_rid;
5401 
5402 	if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5403 		return -ENOMEM;
5404 	data = file->private_data;
5405 	if ((data->rbuffer = kmalloc(104, GFP_KERNEL)) == NULL) {
5406 		kfree (file->private_data);
5407 		return -ENOMEM;
5408 	}
5409 	data->writelen = 0;
5410 	data->maxwritelen = 33*3;
5411 	/* allocate maxwritelen + 1; we'll want a sentinel */
5412 	if ((data->wbuffer = kzalloc(33*3 + 1, GFP_KERNEL)) == NULL) {
5413 		kfree (data->rbuffer);
5414 		kfree (file->private_data);
5415 		return -ENOMEM;
5416 	}
5417 	data->on_close = proc_SSID_on_close;
5418 
5419 	readSsidRid(ai, &SSID_rid);
5420 	ptr = data->rbuffer;
5421 	for (i = 0; i < 3; i++) {
5422 		int j;
5423 		size_t len = le16_to_cpu(SSID_rid.ssids[i].len);
5424 		if (!len)
5425 			break;
5426 		if (len > 32)
5427 			len = 32;
5428 		for (j = 0; j < len && SSID_rid.ssids[i].ssid[j]; j++)
5429 			*ptr++ = SSID_rid.ssids[i].ssid[j];
5430 		*ptr++ = '\n';
5431 	}
5432 	*ptr = '\0';
5433 	data->readlen = strlen(data->rbuffer);
5434 	return 0;
5435 }
5436 
proc_APList_open(struct inode * inode,struct file * file)5437 static int proc_APList_open(struct inode *inode, struct file *file)
5438 {
5439 	struct proc_data *data;
5440 	struct net_device *dev = PDE_DATA(inode);
5441 	struct airo_info *ai = dev->ml_priv;
5442 	int i;
5443 	char *ptr;
5444 	APListRid *APList_rid = &ai->APList;
5445 
5446 	if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5447 		return -ENOMEM;
5448 	data = file->private_data;
5449 	if ((data->rbuffer = kmalloc(104, GFP_KERNEL)) == NULL) {
5450 		kfree (file->private_data);
5451 		return -ENOMEM;
5452 	}
5453 	data->writelen = 0;
5454 	data->maxwritelen = 4*6*3;
5455 	if ((data->wbuffer = kzalloc(data->maxwritelen, GFP_KERNEL)) == NULL) {
5456 		kfree (data->rbuffer);
5457 		kfree (file->private_data);
5458 		return -ENOMEM;
5459 	}
5460 	data->on_close = proc_APList_on_close;
5461 
5462 	ptr = data->rbuffer;
5463 	for (i = 0; i < 4; i++) {
5464 // We end when we find a zero MAC
5465 		if (!*(int*)APList_rid->ap[i] &&
5466 		     !*(int*)&APList_rid->ap[i][2]) break;
5467 		ptr += sprintf(ptr, "%pM\n", APList_rid->ap[i]);
5468 	}
5469 	if (i==0) ptr += sprintf(ptr, "Not using specific APs\n");
5470 
5471 	*ptr = '\0';
5472 	data->readlen = strlen(data->rbuffer);
5473 	return 0;
5474 }
5475 
proc_BSSList_open(struct inode * inode,struct file * file)5476 static int proc_BSSList_open(struct inode *inode, struct file *file)
5477 {
5478 	struct proc_data *data;
5479 	struct net_device *dev = PDE_DATA(inode);
5480 	struct airo_info *ai = dev->ml_priv;
5481 	char *ptr;
5482 	BSSListRid BSSList_rid;
5483 	int rc;
5484 	/* If doLoseSync is not 1, we won't do a Lose Sync */
5485 	int doLoseSync = -1;
5486 
5487 	if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5488 		return -ENOMEM;
5489 	data = file->private_data;
5490 	if ((data->rbuffer = kmalloc(1024, GFP_KERNEL)) == NULL) {
5491 		kfree (file->private_data);
5492 		return -ENOMEM;
5493 	}
5494 	data->writelen = 0;
5495 	data->maxwritelen = 0;
5496 	data->wbuffer = NULL;
5497 	data->on_close = NULL;
5498 
5499 	if (file->f_mode & FMODE_WRITE) {
5500 		if (!(file->f_mode & FMODE_READ)) {
5501 			Cmd cmd;
5502 			Resp rsp;
5503 
5504 			if (ai->flags & FLAG_RADIO_MASK) {
5505 				kfree(data->rbuffer);
5506 				kfree(file->private_data);
5507 				return -ENETDOWN;
5508 			}
5509 			memset(&cmd, 0, sizeof(cmd));
5510 			cmd.cmd = CMD_LISTBSS;
5511 			if (down_interruptible(&ai->sem)) {
5512 				kfree(data->rbuffer);
5513 				kfree(file->private_data);
5514 				return -ERESTARTSYS;
5515 			}
5516 			issuecommand(ai, &cmd, &rsp);
5517 			up(&ai->sem);
5518 			data->readlen = 0;
5519 			return 0;
5520 		}
5521 		doLoseSync = 1;
5522 	}
5523 	ptr = data->rbuffer;
5524 	/* There is a race condition here if there are concurrent opens.
5525            Since it is a rare condition, we'll just live with it, otherwise
5526            we have to add a spin lock... */
5527 	rc = readBSSListRid(ai, doLoseSync, &BSSList_rid);
5528 	while (rc == 0 && BSSList_rid.index != cpu_to_le16(0xffff)) {
5529 		ptr += sprintf(ptr, "%pM %.*s rssi = %d",
5530 			       BSSList_rid.bssid,
5531 				(int)BSSList_rid.ssidLen,
5532 				BSSList_rid.ssid,
5533 				le16_to_cpu(BSSList_rid.dBm));
5534 		ptr += sprintf(ptr, " channel = %d %s %s %s %s\n",
5535 				le16_to_cpu(BSSList_rid.dsChannel),
5536 				BSSList_rid.cap & CAP_ESS ? "ESS" : "",
5537 				BSSList_rid.cap & CAP_IBSS ? "adhoc" : "",
5538 				BSSList_rid.cap & CAP_PRIVACY ? "wep" : "",
5539 				BSSList_rid.cap & CAP_SHORTHDR ? "shorthdr" : "");
5540 		rc = readBSSListRid(ai, 0, &BSSList_rid);
5541 	}
5542 	*ptr = '\0';
5543 	data->readlen = strlen(data->rbuffer);
5544 	return 0;
5545 }
5546 
proc_close(struct inode * inode,struct file * file)5547 static int proc_close(struct inode *inode, struct file *file)
5548 {
5549 	struct proc_data *data = file->private_data;
5550 
5551 	if (data->on_close != NULL)
5552 		data->on_close(inode, file);
5553 	kfree(data->rbuffer);
5554 	kfree(data->wbuffer);
5555 	kfree(data);
5556 	return 0;
5557 }
5558 
5559 /* Since the card doesn't automatically switch to the right WEP mode,
5560    we will make it do it.  If the card isn't associated, every secs we
5561    will switch WEP modes to see if that will help.  If the card is
5562    associated we will check every minute to see if anything has
5563    changed. */
timer_func(struct net_device * dev)5564 static void timer_func(struct net_device *dev)
5565 {
5566 	struct airo_info *apriv = dev->ml_priv;
5567 
5568 /* We don't have a link so try changing the authtype */
5569 	readConfigRid(apriv, 0);
5570 	disable_MAC(apriv, 0);
5571 	switch(apriv->config.authType) {
5572 		case AUTH_ENCRYPT:
5573 /* So drop to OPEN */
5574 			apriv->config.authType = AUTH_OPEN;
5575 			break;
5576 		case AUTH_SHAREDKEY:
5577 			if (apriv->keyindex < auto_wep) {
5578 				set_wep_tx_idx(apriv, apriv->keyindex, 0, 0);
5579 				apriv->config.authType = AUTH_SHAREDKEY;
5580 				apriv->keyindex++;
5581 			} else {
5582 			        /* Drop to ENCRYPT */
5583 				apriv->keyindex = 0;
5584 				set_wep_tx_idx(apriv, apriv->defindex, 0, 0);
5585 				apriv->config.authType = AUTH_ENCRYPT;
5586 			}
5587 			break;
5588 		default:  /* We'll escalate to SHAREDKEY */
5589 			apriv->config.authType = AUTH_SHAREDKEY;
5590 	}
5591 	set_bit (FLAG_COMMIT, &apriv->flags);
5592 	writeConfigRid(apriv, 0);
5593 	enable_MAC(apriv, 0);
5594 	up(&apriv->sem);
5595 
5596 /* Schedule check to see if the change worked */
5597 	clear_bit(JOB_AUTOWEP, &apriv->jobs);
5598 	apriv->expires = RUN_AT(HZ*3);
5599 }
5600 
5601 #ifdef CONFIG_PCI
airo_pci_probe(struct pci_dev * pdev,const struct pci_device_id * pent)5602 static int airo_pci_probe(struct pci_dev *pdev,
5603 				    const struct pci_device_id *pent)
5604 {
5605 	struct net_device *dev;
5606 
5607 	if (pci_enable_device(pdev))
5608 		return -ENODEV;
5609 	pci_set_master(pdev);
5610 
5611 	if (pdev->device == 0x5000 || pdev->device == 0xa504)
5612 			dev = _init_airo_card(pdev->irq, pdev->resource[0].start, 0, pdev, &pdev->dev);
5613 	else
5614 			dev = _init_airo_card(pdev->irq, pdev->resource[2].start, 0, pdev, &pdev->dev);
5615 	if (!dev) {
5616 		pci_disable_device(pdev);
5617 		return -ENODEV;
5618 	}
5619 
5620 	pci_set_drvdata(pdev, dev);
5621 	return 0;
5622 }
5623 
airo_pci_remove(struct pci_dev * pdev)5624 static void airo_pci_remove(struct pci_dev *pdev)
5625 {
5626 	struct net_device *dev = pci_get_drvdata(pdev);
5627 
5628 	airo_print_info(dev->name, "Unregistering...");
5629 	stop_airo_card(dev, 1);
5630 	pci_disable_device(pdev);
5631 }
5632 
airo_pci_suspend(struct device * dev_d)5633 static int __maybe_unused airo_pci_suspend(struct device *dev_d)
5634 {
5635 	struct net_device *dev = dev_get_drvdata(dev_d);
5636 	struct airo_info *ai = dev->ml_priv;
5637 	Cmd cmd;
5638 	Resp rsp;
5639 
5640 	if (!ai->SSID)
5641 		ai->SSID = kmalloc(sizeof(SsidRid), GFP_KERNEL);
5642 	if (!ai->SSID)
5643 		return -ENOMEM;
5644 	readSsidRid(ai, ai->SSID);
5645 	memset(&cmd, 0, sizeof(cmd));
5646 	/* the lock will be released at the end of the resume callback */
5647 	if (down_interruptible(&ai->sem))
5648 		return -EAGAIN;
5649 	disable_MAC(ai, 0);
5650 	netif_device_detach(dev);
5651 	ai->power = PMSG_SUSPEND;
5652 	cmd.cmd = HOSTSLEEP;
5653 	issuecommand(ai, &cmd, &rsp);
5654 
5655 	device_wakeup_enable(dev_d);
5656 	return 0;
5657 }
5658 
airo_pci_resume(struct device * dev_d)5659 static int __maybe_unused airo_pci_resume(struct device *dev_d)
5660 {
5661 	struct net_device *dev = dev_get_drvdata(dev_d);
5662 	struct airo_info *ai = dev->ml_priv;
5663 	pci_power_t prev_state = to_pci_dev(dev_d)->current_state;
5664 
5665 	device_wakeup_disable(dev_d);
5666 
5667 	if (prev_state != PCI_D1) {
5668 		reset_card(dev, 0);
5669 		mpi_init_descriptors(ai);
5670 		setup_card(ai, dev->dev_addr, 0);
5671 		clear_bit(FLAG_RADIO_OFF, &ai->flags);
5672 		clear_bit(FLAG_PENDING_XMIT, &ai->flags);
5673 	} else {
5674 		OUT4500(ai, EVACK, EV_AWAKEN);
5675 		OUT4500(ai, EVACK, EV_AWAKEN);
5676 		msleep(100);
5677 	}
5678 
5679 	set_bit(FLAG_COMMIT, &ai->flags);
5680 	disable_MAC(ai, 0);
5681         msleep(200);
5682 	if (ai->SSID) {
5683 		writeSsidRid(ai, ai->SSID, 0);
5684 		kfree(ai->SSID);
5685 		ai->SSID = NULL;
5686 	}
5687 	writeAPListRid(ai, &ai->APList, 0);
5688 	writeConfigRid(ai, 0);
5689 	enable_MAC(ai, 0);
5690 	ai->power = PMSG_ON;
5691 	netif_device_attach(dev);
5692 	netif_wake_queue(dev);
5693 	enable_interrupts(ai);
5694 	up(&ai->sem);
5695 	return 0;
5696 }
5697 #endif
5698 
airo_init_module(void)5699 static int __init airo_init_module(void)
5700 {
5701 	int i;
5702 
5703 	proc_kuid = make_kuid(&init_user_ns, proc_uid);
5704 	proc_kgid = make_kgid(&init_user_ns, proc_gid);
5705 	if (!uid_valid(proc_kuid) || !gid_valid(proc_kgid))
5706 		return -EINVAL;
5707 
5708 	airo_entry = proc_mkdir_mode("driver/aironet", airo_perm, NULL);
5709 
5710 	if (airo_entry)
5711 		proc_set_user(airo_entry, proc_kuid, proc_kgid);
5712 
5713 	for (i = 0; i < 4 && io[i] && irq[i]; i++) {
5714 		airo_print_info("", "Trying to configure ISA adapter at irq=%d "
5715 			"io = 0x%x", irq[i], io[i]);
5716 		if (init_airo_card(irq[i], io[i], 0, NULL)) {
5717 			/* do nothing */ ;
5718 		}
5719 	}
5720 
5721 #ifdef CONFIG_PCI
5722 	airo_print_info("", "Probing for PCI adapters");
5723 	i = pci_register_driver(&airo_driver);
5724 	airo_print_info("", "Finished probing for PCI adapters");
5725 
5726 	if (i) {
5727 		remove_proc_entry("driver/aironet", NULL);
5728 		return i;
5729 	}
5730 #endif
5731 
5732 	/* Always exit with success, as we are a library module
5733 	 * as well as a driver module
5734 	 */
5735 	return 0;
5736 }
5737 
airo_cleanup_module(void)5738 static void __exit airo_cleanup_module(void)
5739 {
5740 	struct airo_info *ai;
5741 	while (!list_empty(&airo_devices)) {
5742 		ai = list_entry(airo_devices.next, struct airo_info, dev_list);
5743 		airo_print_info(ai->dev->name, "Unregistering...");
5744 		stop_airo_card(ai->dev, 1);
5745 	}
5746 #ifdef CONFIG_PCI
5747 	pci_unregister_driver(&airo_driver);
5748 #endif
5749 	remove_proc_entry("driver/aironet", NULL);
5750 }
5751 
5752 /*
5753  * Initial Wireless Extension code for Aironet driver by :
5754  *	Jean Tourrilhes <jt@hpl.hp.com> - HPL - 17 November 00
5755  * Conversion to new driver API by :
5756  *	Jean Tourrilhes <jt@hpl.hp.com> - HPL - 26 March 02
5757  * Javier also did a good amount of work here, adding some new extensions
5758  * and fixing my code. Let's just say that without him this code just
5759  * would not work at all... - Jean II
5760  */
5761 
airo_rssi_to_dbm(tdsRssiEntry * rssi_rid,u8 rssi)5762 static u8 airo_rssi_to_dbm (tdsRssiEntry *rssi_rid, u8 rssi)
5763 {
5764 	if (!rssi_rid)
5765 		return 0;
5766 
5767 	return (0x100 - rssi_rid[rssi].rssidBm);
5768 }
5769 
airo_dbm_to_pct(tdsRssiEntry * rssi_rid,u8 dbm)5770 static u8 airo_dbm_to_pct (tdsRssiEntry *rssi_rid, u8 dbm)
5771 {
5772 	int i;
5773 
5774 	if (!rssi_rid)
5775 		return 0;
5776 
5777 	for (i = 0; i < 256; i++)
5778 		if (rssi_rid[i].rssidBm == dbm)
5779 			return rssi_rid[i].rssipct;
5780 
5781 	return 0;
5782 }
5783 
5784 
airo_get_quality(StatusRid * status_rid,CapabilityRid * cap_rid)5785 static int airo_get_quality (StatusRid *status_rid, CapabilityRid *cap_rid)
5786 {
5787 	int quality = 0;
5788 	u16 sq;
5789 
5790 	if ((status_rid->mode & cpu_to_le16(0x3f)) != cpu_to_le16(0x3f))
5791 		return 0;
5792 
5793 	if (!(cap_rid->hardCap & cpu_to_le16(8)))
5794 		return 0;
5795 
5796 	sq = le16_to_cpu(status_rid->signalQuality);
5797 	if (memcmp(cap_rid->prodName, "350", 3))
5798 		if (sq > 0x20)
5799 			quality = 0;
5800 		else
5801 			quality = 0x20 - sq;
5802 	else
5803 		if (sq > 0xb0)
5804 			quality = 0;
5805 		else if (sq < 0x10)
5806 			quality = 0xa0;
5807 		else
5808 			quality = 0xb0 - sq;
5809 	return quality;
5810 }
5811 
5812 #define airo_get_max_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x20 : 0xa0)
5813 #define airo_get_avg_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x10 : 0x50);
5814 
5815 /*------------------------------------------------------------------*/
5816 /*
5817  * Wireless Handler : get protocol name
5818  */
airo_get_name(struct net_device * dev,struct iw_request_info * info,char * cwrq,char * extra)5819 static int airo_get_name(struct net_device *dev,
5820 			 struct iw_request_info *info,
5821 			 char *cwrq,
5822 			 char *extra)
5823 {
5824 	strcpy(cwrq, "IEEE 802.11-DS");
5825 	return 0;
5826 }
5827 
5828 /*------------------------------------------------------------------*/
5829 /*
5830  * Wireless Handler : set frequency
5831  */
airo_set_freq(struct net_device * dev,struct iw_request_info * info,struct iw_freq * fwrq,char * extra)5832 static int airo_set_freq(struct net_device *dev,
5833 			 struct iw_request_info *info,
5834 			 struct iw_freq *fwrq,
5835 			 char *extra)
5836 {
5837 	struct airo_info *local = dev->ml_priv;
5838 	int rc = -EINPROGRESS;		/* Call commit handler */
5839 
5840 	/* If setting by frequency, convert to a channel */
5841 	if (fwrq->e == 1) {
5842 		int f = fwrq->m / 100000;
5843 
5844 		/* Hack to fall through... */
5845 		fwrq->e = 0;
5846 		fwrq->m = ieee80211_frequency_to_channel(f);
5847 	}
5848 	/* Setting by channel number */
5849 	if (fwrq->m < 0 || fwrq->m > 1000 || fwrq->e > 0)
5850 		rc = -EOPNOTSUPP;
5851 	else {
5852 		int channel = fwrq->m;
5853 		/* We should do a better check than that,
5854 		 * based on the card capability !!! */
5855 		if ((channel < 1) || (channel > 14)) {
5856 			airo_print_dbg(dev->name, "New channel value of %d is invalid!",
5857 				fwrq->m);
5858 			rc = -EINVAL;
5859 		} else {
5860 			readConfigRid(local, 1);
5861 			/* Yes ! We can set it !!! */
5862 			local->config.channelSet = cpu_to_le16(channel);
5863 			set_bit (FLAG_COMMIT, &local->flags);
5864 		}
5865 	}
5866 	return rc;
5867 }
5868 
5869 /*------------------------------------------------------------------*/
5870 /*
5871  * Wireless Handler : get frequency
5872  */
airo_get_freq(struct net_device * dev,struct iw_request_info * info,struct iw_freq * fwrq,char * extra)5873 static int airo_get_freq(struct net_device *dev,
5874 			 struct iw_request_info *info,
5875 			 struct iw_freq *fwrq,
5876 			 char *extra)
5877 {
5878 	struct airo_info *local = dev->ml_priv;
5879 	StatusRid status_rid;		/* Card status info */
5880 	int ch;
5881 
5882 	readConfigRid(local, 1);
5883 	if ((local->config.opmode & MODE_CFG_MASK) == MODE_STA_ESS)
5884 		status_rid.channel = local->config.channelSet;
5885 	else
5886 		readStatusRid(local, &status_rid, 1);
5887 
5888 	ch = le16_to_cpu(status_rid.channel);
5889 	if ((ch > 0) && (ch < 15)) {
5890 		fwrq->m = 100000 *
5891 			ieee80211_channel_to_frequency(ch, NL80211_BAND_2GHZ);
5892 		fwrq->e = 1;
5893 	} else {
5894 		fwrq->m = ch;
5895 		fwrq->e = 0;
5896 	}
5897 
5898 	return 0;
5899 }
5900 
5901 /*------------------------------------------------------------------*/
5902 /*
5903  * Wireless Handler : set ESSID
5904  */
airo_set_essid(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)5905 static int airo_set_essid(struct net_device *dev,
5906 			  struct iw_request_info *info,
5907 			  struct iw_point *dwrq,
5908 			  char *extra)
5909 {
5910 	struct airo_info *local = dev->ml_priv;
5911 	SsidRid SSID_rid;		/* SSIDs */
5912 
5913 	/* Reload the list of current SSID */
5914 	readSsidRid(local, &SSID_rid);
5915 
5916 	/* Check if we asked for `any' */
5917 	if (dwrq->flags == 0) {
5918 		/* Just send an empty SSID list */
5919 		memset(&SSID_rid, 0, sizeof(SSID_rid));
5920 	} else {
5921 		unsigned index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
5922 
5923 		/* Check the size of the string */
5924 		if (dwrq->length > IW_ESSID_MAX_SIZE)
5925 			return -E2BIG ;
5926 
5927 		/* Check if index is valid */
5928 		if (index >= ARRAY_SIZE(SSID_rid.ssids))
5929 			return -EINVAL;
5930 
5931 		/* Set the SSID */
5932 		memset(SSID_rid.ssids[index].ssid, 0,
5933 		       sizeof(SSID_rid.ssids[index].ssid));
5934 		memcpy(SSID_rid.ssids[index].ssid, extra, dwrq->length);
5935 		SSID_rid.ssids[index].len = cpu_to_le16(dwrq->length);
5936 	}
5937 	SSID_rid.len = cpu_to_le16(sizeof(SSID_rid));
5938 	/* Write it to the card */
5939 	disable_MAC(local, 1);
5940 	writeSsidRid(local, &SSID_rid, 1);
5941 	enable_MAC(local, 1);
5942 
5943 	return 0;
5944 }
5945 
5946 /*------------------------------------------------------------------*/
5947 /*
5948  * Wireless Handler : get ESSID
5949  */
airo_get_essid(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)5950 static int airo_get_essid(struct net_device *dev,
5951 			  struct iw_request_info *info,
5952 			  struct iw_point *dwrq,
5953 			  char *extra)
5954 {
5955 	struct airo_info *local = dev->ml_priv;
5956 	StatusRid status_rid;		/* Card status info */
5957 
5958 	readStatusRid(local, &status_rid, 1);
5959 
5960 	/* Note : if dwrq->flags != 0, we should
5961 	 * get the relevant SSID from the SSID list... */
5962 
5963 	/* Get the current SSID */
5964 	memcpy(extra, status_rid.SSID, le16_to_cpu(status_rid.SSIDlen));
5965 	/* If none, we may want to get the one that was set */
5966 
5967 	/* Push it out ! */
5968 	dwrq->length = le16_to_cpu(status_rid.SSIDlen);
5969 	dwrq->flags = 1; /* active */
5970 
5971 	return 0;
5972 }
5973 
5974 /*------------------------------------------------------------------*/
5975 /*
5976  * Wireless Handler : set AP address
5977  */
airo_set_wap(struct net_device * dev,struct iw_request_info * info,struct sockaddr * awrq,char * extra)5978 static int airo_set_wap(struct net_device *dev,
5979 			struct iw_request_info *info,
5980 			struct sockaddr *awrq,
5981 			char *extra)
5982 {
5983 	struct airo_info *local = dev->ml_priv;
5984 	Cmd cmd;
5985 	Resp rsp;
5986 	APListRid *APList_rid = &local->APList;
5987 
5988 	if (awrq->sa_family != ARPHRD_ETHER)
5989 		return -EINVAL;
5990 	else if (is_broadcast_ether_addr(awrq->sa_data) ||
5991 		 is_zero_ether_addr(awrq->sa_data)) {
5992 		memset(&cmd, 0, sizeof(cmd));
5993 		cmd.cmd = CMD_LOSE_SYNC;
5994 		if (down_interruptible(&local->sem))
5995 			return -ERESTARTSYS;
5996 		issuecommand(local, &cmd, &rsp);
5997 		up(&local->sem);
5998 	} else {
5999 		memset(APList_rid, 0, sizeof(*APList_rid));
6000 		APList_rid->len = cpu_to_le16(sizeof(*APList_rid));
6001 		memcpy(APList_rid->ap[0], awrq->sa_data, ETH_ALEN);
6002 		disable_MAC(local, 1);
6003 		writeAPListRid(local, APList_rid, 1);
6004 		enable_MAC(local, 1);
6005 	}
6006 	return 0;
6007 }
6008 
6009 /*------------------------------------------------------------------*/
6010 /*
6011  * Wireless Handler : get AP address
6012  */
airo_get_wap(struct net_device * dev,struct iw_request_info * info,struct sockaddr * awrq,char * extra)6013 static int airo_get_wap(struct net_device *dev,
6014 			struct iw_request_info *info,
6015 			struct sockaddr *awrq,
6016 			char *extra)
6017 {
6018 	struct airo_info *local = dev->ml_priv;
6019 	StatusRid status_rid;		/* Card status info */
6020 
6021 	readStatusRid(local, &status_rid, 1);
6022 
6023 	/* Tentative. This seems to work, wow, I'm lucky !!! */
6024 	memcpy(awrq->sa_data, status_rid.bssid[0], ETH_ALEN);
6025 	awrq->sa_family = ARPHRD_ETHER;
6026 
6027 	return 0;
6028 }
6029 
6030 /*------------------------------------------------------------------*/
6031 /*
6032  * Wireless Handler : set Nickname
6033  */
airo_set_nick(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6034 static int airo_set_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 	/* Check the size of the string */
6042 	if (dwrq->length > 16) {
6043 		return -E2BIG;
6044 	}
6045 	readConfigRid(local, 1);
6046 	memset(local->config.nodeName, 0, sizeof(local->config.nodeName));
6047 	memcpy(local->config.nodeName, extra, dwrq->length);
6048 	set_bit (FLAG_COMMIT, &local->flags);
6049 
6050 	return -EINPROGRESS;		/* Call commit handler */
6051 }
6052 
6053 /*------------------------------------------------------------------*/
6054 /*
6055  * Wireless Handler : get Nickname
6056  */
airo_get_nick(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6057 static int airo_get_nick(struct net_device *dev,
6058 			 struct iw_request_info *info,
6059 			 struct iw_point *dwrq,
6060 			 char *extra)
6061 {
6062 	struct airo_info *local = dev->ml_priv;
6063 
6064 	readConfigRid(local, 1);
6065 	strncpy(extra, local->config.nodeName, 16);
6066 	extra[16] = '\0';
6067 	dwrq->length = strlen(extra);
6068 
6069 	return 0;
6070 }
6071 
6072 /*------------------------------------------------------------------*/
6073 /*
6074  * Wireless Handler : set Bit-Rate
6075  */
airo_set_rate(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6076 static int airo_set_rate(struct net_device *dev,
6077 			 struct iw_request_info *info,
6078 			 struct iw_param *vwrq,
6079 			 char *extra)
6080 {
6081 	struct airo_info *local = dev->ml_priv;
6082 	CapabilityRid cap_rid;		/* Card capability info */
6083 	u8	brate = 0;
6084 	int	i;
6085 
6086 	/* First : get a valid bit rate value */
6087 	readCapabilityRid(local, &cap_rid, 1);
6088 
6089 	/* Which type of value ? */
6090 	if ((vwrq->value < 8) && (vwrq->value >= 0)) {
6091 		/* Setting by rate index */
6092 		/* Find value in the magic rate table */
6093 		brate = cap_rid.supportedRates[vwrq->value];
6094 	} else {
6095 		/* Setting by frequency value */
6096 		u8	normvalue = (u8) (vwrq->value/500000);
6097 
6098 		/* Check if rate is valid */
6099 		for (i = 0 ; i < 8 ; i++) {
6100 			if (normvalue == cap_rid.supportedRates[i]) {
6101 				brate = normvalue;
6102 				break;
6103 			}
6104 		}
6105 	}
6106 	/* -1 designed the max rate (mostly auto mode) */
6107 	if (vwrq->value == -1) {
6108 		/* Get the highest available rate */
6109 		for (i = 0 ; i < 8 ; i++) {
6110 			if (cap_rid.supportedRates[i] == 0)
6111 				break;
6112 		}
6113 		if (i != 0)
6114 			brate = cap_rid.supportedRates[i - 1];
6115 	}
6116 	/* Check that it is valid */
6117 	if (brate == 0) {
6118 		return -EINVAL;
6119 	}
6120 
6121 	readConfigRid(local, 1);
6122 	/* Now, check if we want a fixed or auto value */
6123 	if (vwrq->fixed == 0) {
6124 		/* Fill all the rates up to this max rate */
6125 		memset(local->config.rates, 0, 8);
6126 		for (i = 0 ; i < 8 ; i++) {
6127 			local->config.rates[i] = cap_rid.supportedRates[i];
6128 			if (local->config.rates[i] == brate)
6129 				break;
6130 		}
6131 	} else {
6132 		/* Fixed mode */
6133 		/* One rate, fixed */
6134 		memset(local->config.rates, 0, 8);
6135 		local->config.rates[0] = brate;
6136 	}
6137 	set_bit (FLAG_COMMIT, &local->flags);
6138 
6139 	return -EINPROGRESS;		/* Call commit handler */
6140 }
6141 
6142 /*------------------------------------------------------------------*/
6143 /*
6144  * Wireless Handler : get Bit-Rate
6145  */
airo_get_rate(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6146 static int airo_get_rate(struct net_device *dev,
6147 			 struct iw_request_info *info,
6148 			 struct iw_param *vwrq,
6149 			 char *extra)
6150 {
6151 	struct airo_info *local = dev->ml_priv;
6152 	StatusRid status_rid;		/* Card status info */
6153 	int ret;
6154 
6155 	ret = readStatusRid(local, &status_rid, 1);
6156 	if (ret)
6157 		return -EBUSY;
6158 
6159 	vwrq->value = le16_to_cpu(status_rid.currentXmitRate) * 500000;
6160 	/* If more than one rate, set auto */
6161 	readConfigRid(local, 1);
6162 	vwrq->fixed = (local->config.rates[1] == 0);
6163 
6164 	return 0;
6165 }
6166 
6167 /*------------------------------------------------------------------*/
6168 /*
6169  * Wireless Handler : set RTS threshold
6170  */
airo_set_rts(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6171 static int airo_set_rts(struct net_device *dev,
6172 			struct iw_request_info *info,
6173 			struct iw_param *vwrq,
6174 			char *extra)
6175 {
6176 	struct airo_info *local = dev->ml_priv;
6177 	int rthr = vwrq->value;
6178 
6179 	if (vwrq->disabled)
6180 		rthr = AIRO_DEF_MTU;
6181 	if ((rthr < 0) || (rthr > AIRO_DEF_MTU)) {
6182 		return -EINVAL;
6183 	}
6184 	readConfigRid(local, 1);
6185 	local->config.rtsThres = cpu_to_le16(rthr);
6186 	set_bit (FLAG_COMMIT, &local->flags);
6187 
6188 	return -EINPROGRESS;		/* Call commit handler */
6189 }
6190 
6191 /*------------------------------------------------------------------*/
6192 /*
6193  * Wireless Handler : get RTS threshold
6194  */
airo_get_rts(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6195 static int airo_get_rts(struct net_device *dev,
6196 			struct iw_request_info *info,
6197 			struct iw_param *vwrq,
6198 			char *extra)
6199 {
6200 	struct airo_info *local = dev->ml_priv;
6201 
6202 	readConfigRid(local, 1);
6203 	vwrq->value = le16_to_cpu(local->config.rtsThres);
6204 	vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU);
6205 	vwrq->fixed = 1;
6206 
6207 	return 0;
6208 }
6209 
6210 /*------------------------------------------------------------------*/
6211 /*
6212  * Wireless Handler : set Fragmentation threshold
6213  */
airo_set_frag(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6214 static int airo_set_frag(struct net_device *dev,
6215 			 struct iw_request_info *info,
6216 			 struct iw_param *vwrq,
6217 			 char *extra)
6218 {
6219 	struct airo_info *local = dev->ml_priv;
6220 	int fthr = vwrq->value;
6221 
6222 	if (vwrq->disabled)
6223 		fthr = AIRO_DEF_MTU;
6224 	if ((fthr < 256) || (fthr > AIRO_DEF_MTU)) {
6225 		return -EINVAL;
6226 	}
6227 	fthr &= ~0x1;	/* Get an even value - is it really needed ??? */
6228 	readConfigRid(local, 1);
6229 	local->config.fragThresh = cpu_to_le16(fthr);
6230 	set_bit (FLAG_COMMIT, &local->flags);
6231 
6232 	return -EINPROGRESS;		/* Call commit handler */
6233 }
6234 
6235 /*------------------------------------------------------------------*/
6236 /*
6237  * Wireless Handler : get Fragmentation threshold
6238  */
airo_get_frag(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6239 static int airo_get_frag(struct net_device *dev,
6240 			 struct iw_request_info *info,
6241 			 struct iw_param *vwrq,
6242 			 char *extra)
6243 {
6244 	struct airo_info *local = dev->ml_priv;
6245 
6246 	readConfigRid(local, 1);
6247 	vwrq->value = le16_to_cpu(local->config.fragThresh);
6248 	vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU);
6249 	vwrq->fixed = 1;
6250 
6251 	return 0;
6252 }
6253 
6254 /*------------------------------------------------------------------*/
6255 /*
6256  * Wireless Handler : set Mode of Operation
6257  */
airo_set_mode(struct net_device * dev,struct iw_request_info * info,__u32 * uwrq,char * extra)6258 static int airo_set_mode(struct net_device *dev,
6259 			 struct iw_request_info *info,
6260 			 __u32 *uwrq,
6261 			 char *extra)
6262 {
6263 	struct airo_info *local = dev->ml_priv;
6264 	int reset = 0;
6265 
6266 	readConfigRid(local, 1);
6267 	if (sniffing_mode(local))
6268 		reset = 1;
6269 
6270 	switch(*uwrq) {
6271 		case IW_MODE_ADHOC:
6272 			local->config.opmode &= ~MODE_CFG_MASK;
6273 			local->config.opmode |= MODE_STA_IBSS;
6274 			local->config.rmode &= ~RXMODE_FULL_MASK;
6275 			local->config.scanMode = SCANMODE_ACTIVE;
6276 			clear_bit (FLAG_802_11, &local->flags);
6277 			break;
6278 		case IW_MODE_INFRA:
6279 			local->config.opmode &= ~MODE_CFG_MASK;
6280 			local->config.opmode |= MODE_STA_ESS;
6281 			local->config.rmode &= ~RXMODE_FULL_MASK;
6282 			local->config.scanMode = SCANMODE_ACTIVE;
6283 			clear_bit (FLAG_802_11, &local->flags);
6284 			break;
6285 		case IW_MODE_MASTER:
6286 			local->config.opmode &= ~MODE_CFG_MASK;
6287 			local->config.opmode |= MODE_AP;
6288 			local->config.rmode &= ~RXMODE_FULL_MASK;
6289 			local->config.scanMode = SCANMODE_ACTIVE;
6290 			clear_bit (FLAG_802_11, &local->flags);
6291 			break;
6292 		case IW_MODE_REPEAT:
6293 			local->config.opmode &= ~MODE_CFG_MASK;
6294 			local->config.opmode |= MODE_AP_RPTR;
6295 			local->config.rmode &= ~RXMODE_FULL_MASK;
6296 			local->config.scanMode = SCANMODE_ACTIVE;
6297 			clear_bit (FLAG_802_11, &local->flags);
6298 			break;
6299 		case IW_MODE_MONITOR:
6300 			local->config.opmode &= ~MODE_CFG_MASK;
6301 			local->config.opmode |= MODE_STA_ESS;
6302 			local->config.rmode &= ~RXMODE_FULL_MASK;
6303 			local->config.rmode |= RXMODE_RFMON | RXMODE_DISABLE_802_3_HEADER;
6304 			local->config.scanMode = SCANMODE_PASSIVE;
6305 			set_bit (FLAG_802_11, &local->flags);
6306 			break;
6307 		default:
6308 			return -EINVAL;
6309 	}
6310 	if (reset)
6311 		set_bit (FLAG_RESET, &local->flags);
6312 	set_bit (FLAG_COMMIT, &local->flags);
6313 
6314 	return -EINPROGRESS;		/* Call commit handler */
6315 }
6316 
6317 /*------------------------------------------------------------------*/
6318 /*
6319  * Wireless Handler : get Mode of Operation
6320  */
airo_get_mode(struct net_device * dev,struct iw_request_info * info,__u32 * uwrq,char * extra)6321 static int airo_get_mode(struct net_device *dev,
6322 			 struct iw_request_info *info,
6323 			 __u32 *uwrq,
6324 			 char *extra)
6325 {
6326 	struct airo_info *local = dev->ml_priv;
6327 
6328 	readConfigRid(local, 1);
6329 	/* If not managed, assume it's ad-hoc */
6330 	switch (local->config.opmode & MODE_CFG_MASK) {
6331 		case MODE_STA_ESS:
6332 			*uwrq = IW_MODE_INFRA;
6333 			break;
6334 		case MODE_AP:
6335 			*uwrq = IW_MODE_MASTER;
6336 			break;
6337 		case MODE_AP_RPTR:
6338 			*uwrq = IW_MODE_REPEAT;
6339 			break;
6340 		default:
6341 			*uwrq = IW_MODE_ADHOC;
6342 	}
6343 
6344 	return 0;
6345 }
6346 
valid_index(struct airo_info * ai,int index)6347 static inline int valid_index(struct airo_info *ai, int index)
6348 {
6349 	return (index >= 0) && (index <= ai->max_wep_idx);
6350 }
6351 
6352 /*------------------------------------------------------------------*/
6353 /*
6354  * Wireless Handler : set Encryption Key
6355  */
airo_set_encode(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6356 static int airo_set_encode(struct net_device *dev,
6357 			   struct iw_request_info *info,
6358 			   struct iw_point *dwrq,
6359 			   char *extra)
6360 {
6361 	struct airo_info *local = dev->ml_priv;
6362 	int perm = (dwrq->flags & IW_ENCODE_TEMP ? 0 : 1);
6363 	__le16 currentAuthType = local->config.authType;
6364 	int rc = 0;
6365 
6366 	if (!local->wep_capable)
6367 		return -EOPNOTSUPP;
6368 
6369 	readConfigRid(local, 1);
6370 
6371 	/* Basic checking: do we have a key to set ?
6372 	 * Note : with the new API, it's impossible to get a NULL pointer.
6373 	 * Therefore, we need to check a key size == 0 instead.
6374 	 * New version of iwconfig properly set the IW_ENCODE_NOKEY flag
6375 	 * when no key is present (only change flags), but older versions
6376 	 * don't do it. - Jean II */
6377 	if (dwrq->length > 0) {
6378 		wep_key_t key;
6379 		int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6380 		int current_index;
6381 
6382 		/* Check the size of the key */
6383 		if (dwrq->length > MAX_KEY_SIZE) {
6384 			return -EINVAL;
6385 		}
6386 
6387 		current_index = get_wep_tx_idx(local);
6388 		if (current_index < 0)
6389 			current_index = 0;
6390 
6391 		/* Check the index (none -> use current) */
6392 		if (!valid_index(local, index))
6393 			index = current_index;
6394 
6395 		/* Set the length */
6396 		if (dwrq->length > MIN_KEY_SIZE)
6397 			key.len = MAX_KEY_SIZE;
6398 		else
6399 			key.len = MIN_KEY_SIZE;
6400 		/* Check if the key is not marked as invalid */
6401 		if (!(dwrq->flags & IW_ENCODE_NOKEY)) {
6402 			/* Cleanup */
6403 			memset(key.key, 0, MAX_KEY_SIZE);
6404 			/* Copy the key in the driver */
6405 			memcpy(key.key, extra, dwrq->length);
6406 			/* Send the key to the card */
6407 			rc = set_wep_key(local, index, key.key, key.len, perm, 1);
6408 			if (rc < 0) {
6409 				airo_print_err(local->dev->name, "failed to set"
6410 				               " WEP key at index %d: %d.",
6411 				               index, rc);
6412 				return rc;
6413 			}
6414 		}
6415 		/* WE specify that if a valid key is set, encryption
6416 		 * should be enabled (user may turn it off later)
6417 		 * This is also how "iwconfig ethX key on" works */
6418 		if ((index == current_index) && (key.len > 0) &&
6419 		   (local->config.authType == AUTH_OPEN))
6420 			set_auth_type(local, AUTH_ENCRYPT);
6421 	} else {
6422 		/* Do we want to just set the transmit key index ? */
6423 		int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6424 		if (valid_index(local, index)) {
6425 			rc = set_wep_tx_idx(local, index, perm, 1);
6426 			if (rc < 0) {
6427 				airo_print_err(local->dev->name, "failed to set"
6428 				               " WEP transmit index to %d: %d.",
6429 				               index, rc);
6430 				return rc;
6431 			}
6432 		} else {
6433 			/* Don't complain if only change the mode */
6434 			if (!(dwrq->flags & IW_ENCODE_MODE))
6435 				return -EINVAL;
6436 		}
6437 	}
6438 	/* Read the flags */
6439 	if (dwrq->flags & IW_ENCODE_DISABLED)
6440 		set_auth_type(local, AUTH_OPEN);	/* disable encryption */
6441 	if (dwrq->flags & IW_ENCODE_RESTRICTED)
6442 		set_auth_type(local, AUTH_SHAREDKEY);	/* Only Both */
6443 	if (dwrq->flags & IW_ENCODE_OPEN)
6444 		set_auth_type(local, AUTH_ENCRYPT);	/* Only Wep */
6445 	/* Commit the changes to flags if needed */
6446 	if (local->config.authType != currentAuthType)
6447 		set_bit (FLAG_COMMIT, &local->flags);
6448 	return -EINPROGRESS;		/* Call commit handler */
6449 }
6450 
6451 /*------------------------------------------------------------------*/
6452 /*
6453  * Wireless Handler : get Encryption Key
6454  */
airo_get_encode(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6455 static int airo_get_encode(struct net_device *dev,
6456 			   struct iw_request_info *info,
6457 			   struct iw_point *dwrq,
6458 			   char *extra)
6459 {
6460 	struct airo_info *local = dev->ml_priv;
6461 	int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6462 	int wep_key_len;
6463 	u8 buf[16];
6464 
6465 	if (!local->wep_capable)
6466 		return -EOPNOTSUPP;
6467 
6468 	readConfigRid(local, 1);
6469 
6470 	/* Check encryption mode */
6471 	switch(local->config.authType)	{
6472 		case AUTH_ENCRYPT:
6473 			dwrq->flags = IW_ENCODE_OPEN;
6474 			break;
6475 		case AUTH_SHAREDKEY:
6476 			dwrq->flags = IW_ENCODE_RESTRICTED;
6477 			break;
6478 		default:
6479 		case AUTH_OPEN:
6480 			dwrq->flags = IW_ENCODE_DISABLED;
6481 			break;
6482 	}
6483 	/* We can't return the key, so set the proper flag and return zero */
6484 	dwrq->flags |= IW_ENCODE_NOKEY;
6485 	memset(extra, 0, 16);
6486 
6487 	/* Which key do we want ? -1 -> tx index */
6488 	if (!valid_index(local, index)) {
6489 		index = get_wep_tx_idx(local);
6490 		if (index < 0)
6491 			index = 0;
6492 	}
6493 	dwrq->flags |= index + 1;
6494 
6495 	/* Copy the key to the user buffer */
6496 	wep_key_len = get_wep_key(local, index, &buf[0], sizeof(buf));
6497 	if (wep_key_len < 0) {
6498 		dwrq->length = 0;
6499 	} else {
6500 		dwrq->length = wep_key_len;
6501 		memcpy(extra, buf, dwrq->length);
6502 	}
6503 
6504 	return 0;
6505 }
6506 
6507 /*------------------------------------------------------------------*/
6508 /*
6509  * Wireless Handler : set extended Encryption parameters
6510  */
airo_set_encodeext(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6511 static int airo_set_encodeext(struct net_device *dev,
6512 			   struct iw_request_info *info,
6513 			    union iwreq_data *wrqu,
6514 			    char *extra)
6515 {
6516 	struct airo_info *local = dev->ml_priv;
6517 	struct iw_point *encoding = &wrqu->encoding;
6518 	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6519 	int perm = (encoding->flags & IW_ENCODE_TEMP ? 0 : 1);
6520 	__le16 currentAuthType = local->config.authType;
6521 	int idx, key_len, alg = ext->alg, set_key = 1, rc;
6522 	wep_key_t key;
6523 
6524 	if (!local->wep_capable)
6525 		return -EOPNOTSUPP;
6526 
6527 	readConfigRid(local, 1);
6528 
6529 	/* Determine and validate the key index */
6530 	idx = encoding->flags & IW_ENCODE_INDEX;
6531 	if (idx) {
6532 		if (!valid_index(local, idx - 1))
6533 			return -EINVAL;
6534 		idx--;
6535 	} else {
6536 		idx = get_wep_tx_idx(local);
6537 		if (idx < 0)
6538 			idx = 0;
6539 	}
6540 
6541 	if (encoding->flags & IW_ENCODE_DISABLED)
6542 		alg = IW_ENCODE_ALG_NONE;
6543 
6544 	if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
6545 		/* Only set transmit key index here, actual
6546 		 * key is set below if needed.
6547 		 */
6548 		rc = set_wep_tx_idx(local, idx, perm, 1);
6549 		if (rc < 0) {
6550 			airo_print_err(local->dev->name, "failed to set "
6551 			               "WEP transmit index to %d: %d.",
6552 			               idx, rc);
6553 			return rc;
6554 		}
6555 		set_key = ext->key_len > 0 ? 1 : 0;
6556 	}
6557 
6558 	if (set_key) {
6559 		/* Set the requested key first */
6560 		memset(key.key, 0, MAX_KEY_SIZE);
6561 		switch (alg) {
6562 		case IW_ENCODE_ALG_NONE:
6563 			key.len = 0;
6564 			break;
6565 		case IW_ENCODE_ALG_WEP:
6566 			if (ext->key_len > MIN_KEY_SIZE) {
6567 				key.len = MAX_KEY_SIZE;
6568 			} else if (ext->key_len > 0) {
6569 				key.len = MIN_KEY_SIZE;
6570 			} else {
6571 				return -EINVAL;
6572 			}
6573 			key_len = min (ext->key_len, key.len);
6574 			memcpy(key.key, ext->key, key_len);
6575 			break;
6576 		default:
6577 			return -EINVAL;
6578 		}
6579 		if (key.len == 0) {
6580 			rc = set_wep_tx_idx(local, idx, perm, 1);
6581 			if (rc < 0) {
6582 				airo_print_err(local->dev->name,
6583 					       "failed to set WEP transmit index to %d: %d.",
6584 					       idx, rc);
6585 				return rc;
6586 			}
6587 		} else {
6588 			rc = set_wep_key(local, idx, key.key, key.len, perm, 1);
6589 			if (rc < 0) {
6590 				airo_print_err(local->dev->name,
6591 					       "failed to set WEP key at index %d: %d.",
6592 					       idx, rc);
6593 				return rc;
6594 			}
6595 		}
6596 	}
6597 
6598 	/* Read the flags */
6599 	if (encoding->flags & IW_ENCODE_DISABLED)
6600 		set_auth_type(local, AUTH_OPEN);	/* disable encryption */
6601 	if (encoding->flags & IW_ENCODE_RESTRICTED)
6602 		set_auth_type(local, AUTH_SHAREDKEY);	/* Only Both */
6603 	if (encoding->flags & IW_ENCODE_OPEN)
6604 		set_auth_type(local, AUTH_ENCRYPT);
6605 	/* Commit the changes to flags if needed */
6606 	if (local->config.authType != currentAuthType)
6607 		set_bit (FLAG_COMMIT, &local->flags);
6608 
6609 	return -EINPROGRESS;
6610 }
6611 
6612 
6613 /*------------------------------------------------------------------*/
6614 /*
6615  * Wireless Handler : get extended Encryption parameters
6616  */
airo_get_encodeext(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6617 static int airo_get_encodeext(struct net_device *dev,
6618 			    struct iw_request_info *info,
6619 			    union iwreq_data *wrqu,
6620 			    char *extra)
6621 {
6622 	struct airo_info *local = dev->ml_priv;
6623 	struct iw_point *encoding = &wrqu->encoding;
6624 	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6625 	int idx, max_key_len, wep_key_len;
6626 	u8 buf[16];
6627 
6628 	if (!local->wep_capable)
6629 		return -EOPNOTSUPP;
6630 
6631 	readConfigRid(local, 1);
6632 
6633 	max_key_len = encoding->length - sizeof(*ext);
6634 	if (max_key_len < 0)
6635 		return -EINVAL;
6636 
6637 	idx = encoding->flags & IW_ENCODE_INDEX;
6638 	if (idx) {
6639 		if (!valid_index(local, idx - 1))
6640 			return -EINVAL;
6641 		idx--;
6642 	} else {
6643 		idx = get_wep_tx_idx(local);
6644 		if (idx < 0)
6645 			idx = 0;
6646 	}
6647 
6648 	encoding->flags = idx + 1;
6649 	memset(ext, 0, sizeof(*ext));
6650 
6651 	/* Check encryption mode */
6652 	switch(local->config.authType) {
6653 		case AUTH_ENCRYPT:
6654 			encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED;
6655 			break;
6656 		case AUTH_SHAREDKEY:
6657 			encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED;
6658 			break;
6659 		default:
6660 		case AUTH_OPEN:
6661 			encoding->flags = IW_ENCODE_ALG_NONE | IW_ENCODE_DISABLED;
6662 			break;
6663 	}
6664 	/* We can't return the key, so set the proper flag and return zero */
6665 	encoding->flags |= IW_ENCODE_NOKEY;
6666 	memset(extra, 0, 16);
6667 
6668 	/* Copy the key to the user buffer */
6669 	wep_key_len = get_wep_key(local, idx, &buf[0], sizeof(buf));
6670 	if (wep_key_len < 0) {
6671 		ext->key_len = 0;
6672 	} else {
6673 		ext->key_len = wep_key_len;
6674 		memcpy(extra, buf, ext->key_len);
6675 	}
6676 
6677 	return 0;
6678 }
6679 
6680 
6681 /*------------------------------------------------------------------*/
6682 /*
6683  * Wireless Handler : set extended authentication parameters
6684  */
airo_set_auth(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6685 static int airo_set_auth(struct net_device *dev,
6686 			       struct iw_request_info *info,
6687 			       union iwreq_data *wrqu, char *extra)
6688 {
6689 	struct airo_info *local = dev->ml_priv;
6690 	struct iw_param *param = &wrqu->param;
6691 	__le16 currentAuthType = local->config.authType;
6692 
6693 	switch (param->flags & IW_AUTH_INDEX) {
6694 	case IW_AUTH_WPA_VERSION:
6695 	case IW_AUTH_CIPHER_PAIRWISE:
6696 	case IW_AUTH_CIPHER_GROUP:
6697 	case IW_AUTH_KEY_MGMT:
6698 	case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6699 	case IW_AUTH_PRIVACY_INVOKED:
6700 		/*
6701 		 * airo does not use these parameters
6702 		 */
6703 		break;
6704 
6705 	case IW_AUTH_DROP_UNENCRYPTED:
6706 		if (param->value) {
6707 			/* Only change auth type if unencrypted */
6708 			if (currentAuthType == AUTH_OPEN)
6709 				set_auth_type(local, AUTH_ENCRYPT);
6710 		} else {
6711 			set_auth_type(local, AUTH_OPEN);
6712 		}
6713 
6714 		/* Commit the changes to flags if needed */
6715 		if (local->config.authType != currentAuthType)
6716 			set_bit (FLAG_COMMIT, &local->flags);
6717 		break;
6718 
6719 	case IW_AUTH_80211_AUTH_ALG: {
6720 			if (param->value & IW_AUTH_ALG_SHARED_KEY) {
6721 				set_auth_type(local, AUTH_SHAREDKEY);
6722 			} else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
6723 				/* We don't know here if WEP open system or
6724 				 * unencrypted mode was requested - so use the
6725 				 * last mode (of these two) used last time
6726 				 */
6727 				set_auth_type(local, local->last_auth);
6728 			} else
6729 				return -EINVAL;
6730 
6731 			/* Commit the changes to flags if needed */
6732 			if (local->config.authType != currentAuthType)
6733 				set_bit (FLAG_COMMIT, &local->flags);
6734 			break;
6735 		}
6736 
6737 	case IW_AUTH_WPA_ENABLED:
6738 		/* Silently accept disable of WPA */
6739 		if (param->value > 0)
6740 			return -EOPNOTSUPP;
6741 		break;
6742 
6743 	default:
6744 		return -EOPNOTSUPP;
6745 	}
6746 	return -EINPROGRESS;
6747 }
6748 
6749 
6750 /*------------------------------------------------------------------*/
6751 /*
6752  * Wireless Handler : get extended authentication parameters
6753  */
airo_get_auth(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6754 static int airo_get_auth(struct net_device *dev,
6755 			       struct iw_request_info *info,
6756 			       union iwreq_data *wrqu, char *extra)
6757 {
6758 	struct airo_info *local = dev->ml_priv;
6759 	struct iw_param *param = &wrqu->param;
6760 	__le16 currentAuthType = local->config.authType;
6761 
6762 	switch (param->flags & IW_AUTH_INDEX) {
6763 	case IW_AUTH_DROP_UNENCRYPTED:
6764 		switch (currentAuthType) {
6765 		case AUTH_SHAREDKEY:
6766 		case AUTH_ENCRYPT:
6767 			param->value = 1;
6768 			break;
6769 		default:
6770 			param->value = 0;
6771 			break;
6772 		}
6773 		break;
6774 
6775 	case IW_AUTH_80211_AUTH_ALG:
6776 		switch (currentAuthType) {
6777 		case AUTH_SHAREDKEY:
6778 			param->value = IW_AUTH_ALG_SHARED_KEY;
6779 			break;
6780 		case AUTH_ENCRYPT:
6781 		default:
6782 			param->value = IW_AUTH_ALG_OPEN_SYSTEM;
6783 			break;
6784 		}
6785 		break;
6786 
6787 	case IW_AUTH_WPA_ENABLED:
6788 		param->value = 0;
6789 		break;
6790 
6791 	default:
6792 		return -EOPNOTSUPP;
6793 	}
6794 	return 0;
6795 }
6796 
6797 
6798 /*------------------------------------------------------------------*/
6799 /*
6800  * Wireless Handler : set Tx-Power
6801  */
airo_set_txpow(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6802 static int airo_set_txpow(struct net_device *dev,
6803 			  struct iw_request_info *info,
6804 			  struct iw_param *vwrq,
6805 			  char *extra)
6806 {
6807 	struct airo_info *local = dev->ml_priv;
6808 	CapabilityRid cap_rid;		/* Card capability info */
6809 	int i;
6810 	int rc = -EINVAL;
6811 	__le16 v = cpu_to_le16(vwrq->value);
6812 
6813 	readCapabilityRid(local, &cap_rid, 1);
6814 
6815 	if (vwrq->disabled) {
6816 		set_bit (FLAG_RADIO_OFF, &local->flags);
6817 		set_bit (FLAG_COMMIT, &local->flags);
6818 		return -EINPROGRESS;		/* Call commit handler */
6819 	}
6820 	if (vwrq->flags != IW_TXPOW_MWATT) {
6821 		return -EINVAL;
6822 	}
6823 	clear_bit (FLAG_RADIO_OFF, &local->flags);
6824 	for (i = 0; i < 8 && cap_rid.txPowerLevels[i]; i++)
6825 		if (v == cap_rid.txPowerLevels[i]) {
6826 			readConfigRid(local, 1);
6827 			local->config.txPower = v;
6828 			set_bit (FLAG_COMMIT, &local->flags);
6829 			rc = -EINPROGRESS;	/* Call commit handler */
6830 			break;
6831 		}
6832 	return rc;
6833 }
6834 
6835 /*------------------------------------------------------------------*/
6836 /*
6837  * Wireless Handler : get Tx-Power
6838  */
airo_get_txpow(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6839 static int airo_get_txpow(struct net_device *dev,
6840 			  struct iw_request_info *info,
6841 			  struct iw_param *vwrq,
6842 			  char *extra)
6843 {
6844 	struct airo_info *local = dev->ml_priv;
6845 
6846 	readConfigRid(local, 1);
6847 	vwrq->value = le16_to_cpu(local->config.txPower);
6848 	vwrq->fixed = 1;	/* No power control */
6849 	vwrq->disabled = test_bit(FLAG_RADIO_OFF, &local->flags);
6850 	vwrq->flags = IW_TXPOW_MWATT;
6851 
6852 	return 0;
6853 }
6854 
6855 /*------------------------------------------------------------------*/
6856 /*
6857  * Wireless Handler : set Retry limits
6858  */
airo_set_retry(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6859 static int airo_set_retry(struct net_device *dev,
6860 			  struct iw_request_info *info,
6861 			  struct iw_param *vwrq,
6862 			  char *extra)
6863 {
6864 	struct airo_info *local = dev->ml_priv;
6865 	int rc = -EINVAL;
6866 
6867 	if (vwrq->disabled) {
6868 		return -EINVAL;
6869 	}
6870 	readConfigRid(local, 1);
6871 	if (vwrq->flags & IW_RETRY_LIMIT) {
6872 		__le16 v = cpu_to_le16(vwrq->value);
6873 		if (vwrq->flags & IW_RETRY_LONG)
6874 			local->config.longRetryLimit = v;
6875 		else if (vwrq->flags & IW_RETRY_SHORT)
6876 			local->config.shortRetryLimit = v;
6877 		else {
6878 			/* No modifier : set both */
6879 			local->config.longRetryLimit = v;
6880 			local->config.shortRetryLimit = v;
6881 		}
6882 		set_bit (FLAG_COMMIT, &local->flags);
6883 		rc = -EINPROGRESS;		/* Call commit handler */
6884 	}
6885 	if (vwrq->flags & IW_RETRY_LIFETIME) {
6886 		local->config.txLifetime = cpu_to_le16(vwrq->value / 1024);
6887 		set_bit (FLAG_COMMIT, &local->flags);
6888 		rc = -EINPROGRESS;		/* Call commit handler */
6889 	}
6890 	return rc;
6891 }
6892 
6893 /*------------------------------------------------------------------*/
6894 /*
6895  * Wireless Handler : get Retry limits
6896  */
airo_get_retry(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6897 static int airo_get_retry(struct net_device *dev,
6898 			  struct iw_request_info *info,
6899 			  struct iw_param *vwrq,
6900 			  char *extra)
6901 {
6902 	struct airo_info *local = dev->ml_priv;
6903 
6904 	vwrq->disabled = 0;      /* Can't be disabled */
6905 
6906 	readConfigRid(local, 1);
6907 	/* Note : by default, display the min retry number */
6908 	if ((vwrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
6909 		vwrq->flags = IW_RETRY_LIFETIME;
6910 		vwrq->value = le16_to_cpu(local->config.txLifetime) * 1024;
6911 	} else if ((vwrq->flags & IW_RETRY_LONG)) {
6912 		vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
6913 		vwrq->value = le16_to_cpu(local->config.longRetryLimit);
6914 	} else {
6915 		vwrq->flags = IW_RETRY_LIMIT;
6916 		vwrq->value = le16_to_cpu(local->config.shortRetryLimit);
6917 		if (local->config.shortRetryLimit != local->config.longRetryLimit)
6918 			vwrq->flags |= IW_RETRY_SHORT;
6919 	}
6920 
6921 	return 0;
6922 }
6923 
6924 /*------------------------------------------------------------------*/
6925 /*
6926  * Wireless Handler : get range info
6927  */
airo_get_range(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6928 static int airo_get_range(struct net_device *dev,
6929 			  struct iw_request_info *info,
6930 			  struct iw_point *dwrq,
6931 			  char *extra)
6932 {
6933 	struct airo_info *local = dev->ml_priv;
6934 	struct iw_range *range = (struct iw_range *) extra;
6935 	CapabilityRid cap_rid;		/* Card capability info */
6936 	int		i;
6937 	int		k;
6938 
6939 	readCapabilityRid(local, &cap_rid, 1);
6940 
6941 	dwrq->length = sizeof(struct iw_range);
6942 	memset(range, 0, sizeof(*range));
6943 	range->min_nwid = 0x0000;
6944 	range->max_nwid = 0x0000;
6945 	range->num_channels = 14;
6946 	/* Should be based on cap_rid.country to give only
6947 	 * what the current card support */
6948 	k = 0;
6949 	for (i = 0; i < 14; i++) {
6950 		range->freq[k].i = i + 1; /* List index */
6951 		range->freq[k].m = 100000 *
6952 		     ieee80211_channel_to_frequency(i + 1, NL80211_BAND_2GHZ);
6953 		range->freq[k++].e = 1;	/* Values in MHz -> * 10^5 * 10 */
6954 	}
6955 	range->num_frequency = k;
6956 
6957 	range->sensitivity = 65535;
6958 
6959 	/* Hum... Should put the right values there */
6960 	if (local->rssi)
6961 		range->max_qual.qual = 100;	/* % */
6962 	else
6963 		range->max_qual.qual = airo_get_max_quality(&cap_rid);
6964 	range->max_qual.level = 0x100 - 120;	/* -120 dBm */
6965 	range->max_qual.noise = 0x100 - 120;	/* -120 dBm */
6966 
6967 	/* Experimental measurements - boundary 11/5.5 Mb/s */
6968 	/* Note : with or without the (local->rssi), results
6969 	 * are somewhat different. - Jean II */
6970 	if (local->rssi) {
6971 		range->avg_qual.qual = 50;		/* % */
6972 		range->avg_qual.level = 0x100 - 70;	/* -70 dBm */
6973 	} else {
6974 		range->avg_qual.qual = airo_get_avg_quality(&cap_rid);
6975 		range->avg_qual.level = 0x100 - 80;	/* -80 dBm */
6976 	}
6977 	range->avg_qual.noise = 0x100 - 85;		/* -85 dBm */
6978 
6979 	for (i = 0 ; i < 8 ; i++) {
6980 		range->bitrate[i] = cap_rid.supportedRates[i] * 500000;
6981 		if (range->bitrate[i] == 0)
6982 			break;
6983 	}
6984 	range->num_bitrates = i;
6985 
6986 	/* Set an indication of the max TCP throughput
6987 	 * in bit/s that we can expect using this interface.
6988 	 * May be use for QoS stuff... Jean II */
6989 	if (i > 2)
6990 		range->throughput = 5000 * 1000;
6991 	else
6992 		range->throughput = 1500 * 1000;
6993 
6994 	range->min_rts = 0;
6995 	range->max_rts = AIRO_DEF_MTU;
6996 	range->min_frag = 256;
6997 	range->max_frag = AIRO_DEF_MTU;
6998 
6999 	if (cap_rid.softCap & cpu_to_le16(2)) {
7000 		// WEP: RC4 40 bits
7001 		range->encoding_size[0] = 5;
7002 		// RC4 ~128 bits
7003 		if (cap_rid.softCap & cpu_to_le16(0x100)) {
7004 			range->encoding_size[1] = 13;
7005 			range->num_encoding_sizes = 2;
7006 		} else
7007 			range->num_encoding_sizes = 1;
7008 		range->max_encoding_tokens =
7009 			cap_rid.softCap & cpu_to_le16(0x80) ? 4 : 1;
7010 	} else {
7011 		range->num_encoding_sizes = 0;
7012 		range->max_encoding_tokens = 0;
7013 	}
7014 	range->min_pmp = 0;
7015 	range->max_pmp = 5000000;	/* 5 secs */
7016 	range->min_pmt = 0;
7017 	range->max_pmt = 65535 * 1024;	/* ??? */
7018 	range->pmp_flags = IW_POWER_PERIOD;
7019 	range->pmt_flags = IW_POWER_TIMEOUT;
7020 	range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R;
7021 
7022 	/* Transmit Power - values are in mW */
7023 	for (i = 0 ; i < 8 ; i++) {
7024 		range->txpower[i] = le16_to_cpu(cap_rid.txPowerLevels[i]);
7025 		if (range->txpower[i] == 0)
7026 			break;
7027 	}
7028 	range->num_txpower = i;
7029 	range->txpower_capa = IW_TXPOW_MWATT;
7030 	range->we_version_source = 19;
7031 	range->we_version_compiled = WIRELESS_EXT;
7032 	range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
7033 	range->retry_flags = IW_RETRY_LIMIT;
7034 	range->r_time_flags = IW_RETRY_LIFETIME;
7035 	range->min_retry = 1;
7036 	range->max_retry = 65535;
7037 	range->min_r_time = 1024;
7038 	range->max_r_time = 65535 * 1024;
7039 
7040 	/* Event capability (kernel + driver) */
7041 	range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
7042 				IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) |
7043 				IW_EVENT_CAPA_MASK(SIOCGIWAP) |
7044 				IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
7045 	range->event_capa[1] = IW_EVENT_CAPA_K_1;
7046 	range->event_capa[4] = IW_EVENT_CAPA_MASK(IWEVTXDROP);
7047 	return 0;
7048 }
7049 
7050 /*------------------------------------------------------------------*/
7051 /*
7052  * Wireless Handler : set Power Management
7053  */
airo_set_power(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7054 static int airo_set_power(struct net_device *dev,
7055 			  struct iw_request_info *info,
7056 			  struct iw_param *vwrq,
7057 			  char *extra)
7058 {
7059 	struct airo_info *local = dev->ml_priv;
7060 
7061 	readConfigRid(local, 1);
7062 	if (vwrq->disabled) {
7063 		if (sniffing_mode(local))
7064 			return -EINVAL;
7065 		local->config.powerSaveMode = POWERSAVE_CAM;
7066 		local->config.rmode &= ~RXMODE_MASK;
7067 		local->config.rmode |= RXMODE_BC_MC_ADDR;
7068 		set_bit (FLAG_COMMIT, &local->flags);
7069 		return -EINPROGRESS;		/* Call commit handler */
7070 	}
7071 	if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
7072 		local->config.fastListenDelay = cpu_to_le16((vwrq->value + 500) / 1024);
7073 		local->config.powerSaveMode = POWERSAVE_PSPCAM;
7074 		set_bit (FLAG_COMMIT, &local->flags);
7075 	} else if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_PERIOD) {
7076 		local->config.fastListenInterval =
7077 		local->config.listenInterval =
7078 			cpu_to_le16((vwrq->value + 500) / 1024);
7079 		local->config.powerSaveMode = POWERSAVE_PSPCAM;
7080 		set_bit (FLAG_COMMIT, &local->flags);
7081 	}
7082 	switch (vwrq->flags & IW_POWER_MODE) {
7083 		case IW_POWER_UNICAST_R:
7084 			if (sniffing_mode(local))
7085 				return -EINVAL;
7086 			local->config.rmode &= ~RXMODE_MASK;
7087 			local->config.rmode |= RXMODE_ADDR;
7088 			set_bit (FLAG_COMMIT, &local->flags);
7089 			break;
7090 		case IW_POWER_ALL_R:
7091 			if (sniffing_mode(local))
7092 				return -EINVAL;
7093 			local->config.rmode &= ~RXMODE_MASK;
7094 			local->config.rmode |= RXMODE_BC_MC_ADDR;
7095 			set_bit (FLAG_COMMIT, &local->flags);
7096 		case IW_POWER_ON:
7097 			/* This is broken, fixme ;-) */
7098 			break;
7099 		default:
7100 			return -EINVAL;
7101 	}
7102 	// Note : we may want to factor local->need_commit here
7103 	// Note2 : may also want to factor RXMODE_RFMON test
7104 	return -EINPROGRESS;		/* Call commit handler */
7105 }
7106 
7107 /*------------------------------------------------------------------*/
7108 /*
7109  * Wireless Handler : get Power Management
7110  */
airo_get_power(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7111 static int airo_get_power(struct net_device *dev,
7112 			  struct iw_request_info *info,
7113 			  struct iw_param *vwrq,
7114 			  char *extra)
7115 {
7116 	struct airo_info *local = dev->ml_priv;
7117 	__le16 mode;
7118 
7119 	readConfigRid(local, 1);
7120 	mode = local->config.powerSaveMode;
7121 	if ((vwrq->disabled = (mode == POWERSAVE_CAM)))
7122 		return 0;
7123 	if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
7124 		vwrq->value = le16_to_cpu(local->config.fastListenDelay) * 1024;
7125 		vwrq->flags = IW_POWER_TIMEOUT;
7126 	} else {
7127 		vwrq->value = le16_to_cpu(local->config.fastListenInterval) * 1024;
7128 		vwrq->flags = IW_POWER_PERIOD;
7129 	}
7130 	if ((local->config.rmode & RXMODE_MASK) == RXMODE_ADDR)
7131 		vwrq->flags |= IW_POWER_UNICAST_R;
7132 	else
7133 		vwrq->flags |= IW_POWER_ALL_R;
7134 
7135 	return 0;
7136 }
7137 
7138 /*------------------------------------------------------------------*/
7139 /*
7140  * Wireless Handler : set Sensitivity
7141  */
airo_set_sens(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7142 static int airo_set_sens(struct net_device *dev,
7143 			 struct iw_request_info *info,
7144 			 struct iw_param *vwrq,
7145 			 char *extra)
7146 {
7147 	struct airo_info *local = dev->ml_priv;
7148 
7149 	readConfigRid(local, 1);
7150 	local->config.rssiThreshold =
7151 		cpu_to_le16(vwrq->disabled ? RSSI_DEFAULT : vwrq->value);
7152 	set_bit (FLAG_COMMIT, &local->flags);
7153 
7154 	return -EINPROGRESS;		/* Call commit handler */
7155 }
7156 
7157 /*------------------------------------------------------------------*/
7158 /*
7159  * Wireless Handler : get Sensitivity
7160  */
airo_get_sens(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7161 static int airo_get_sens(struct net_device *dev,
7162 			 struct iw_request_info *info,
7163 			 struct iw_param *vwrq,
7164 			 char *extra)
7165 {
7166 	struct airo_info *local = dev->ml_priv;
7167 
7168 	readConfigRid(local, 1);
7169 	vwrq->value = le16_to_cpu(local->config.rssiThreshold);
7170 	vwrq->disabled = (vwrq->value == 0);
7171 	vwrq->fixed = 1;
7172 
7173 	return 0;
7174 }
7175 
7176 /*------------------------------------------------------------------*/
7177 /*
7178  * Wireless Handler : get AP List
7179  * Note : this is deprecated in favor of IWSCAN
7180  */
airo_get_aplist(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)7181 static int airo_get_aplist(struct net_device *dev,
7182 			   struct iw_request_info *info,
7183 			   struct iw_point *dwrq,
7184 			   char *extra)
7185 {
7186 	struct airo_info *local = dev->ml_priv;
7187 	struct sockaddr *address = (struct sockaddr *) extra;
7188 	struct iw_quality *qual;
7189 	BSSListRid BSSList;
7190 	int i;
7191 	int loseSync = capable(CAP_NET_ADMIN) ? 1: -1;
7192 
7193 	qual = kmalloc_array(IW_MAX_AP, sizeof(*qual), GFP_KERNEL);
7194 	if (!qual)
7195 		return -ENOMEM;
7196 
7197 	for (i = 0; i < IW_MAX_AP; i++) {
7198 		u16 dBm;
7199 		if (readBSSListRid(local, loseSync, &BSSList))
7200 			break;
7201 		loseSync = 0;
7202 		memcpy(address[i].sa_data, BSSList.bssid, ETH_ALEN);
7203 		address[i].sa_family = ARPHRD_ETHER;
7204 		dBm = le16_to_cpu(BSSList.dBm);
7205 		if (local->rssi) {
7206 			qual[i].level = 0x100 - dBm;
7207 			qual[i].qual = airo_dbm_to_pct(local->rssi, dBm);
7208 			qual[i].updated = IW_QUAL_QUAL_UPDATED
7209 					| IW_QUAL_LEVEL_UPDATED
7210 					| IW_QUAL_DBM;
7211 		} else {
7212 			qual[i].level = (dBm + 321) / 2;
7213 			qual[i].qual = 0;
7214 			qual[i].updated = IW_QUAL_QUAL_INVALID
7215 					| IW_QUAL_LEVEL_UPDATED
7216 					| IW_QUAL_DBM;
7217 		}
7218 		qual[i].noise = local->wstats.qual.noise;
7219 		if (BSSList.index == cpu_to_le16(0xffff))
7220 			break;
7221 	}
7222 	if (!i) {
7223 		StatusRid status_rid;		/* Card status info */
7224 		readStatusRid(local, &status_rid, 1);
7225 		for (i = 0;
7226 		     i < min(IW_MAX_AP, 4) &&
7227 			     (status_rid.bssid[i][0]
7228 			      & status_rid.bssid[i][1]
7229 			      & status_rid.bssid[i][2]
7230 			      & status_rid.bssid[i][3]
7231 			      & status_rid.bssid[i][4]
7232 			      & status_rid.bssid[i][5])!=0xff &&
7233 			     (status_rid.bssid[i][0]
7234 			      | status_rid.bssid[i][1]
7235 			      | status_rid.bssid[i][2]
7236 			      | status_rid.bssid[i][3]
7237 			      | status_rid.bssid[i][4]
7238 			      | status_rid.bssid[i][5]);
7239 		     i++) {
7240 			memcpy(address[i].sa_data,
7241 			       status_rid.bssid[i], ETH_ALEN);
7242 			address[i].sa_family = ARPHRD_ETHER;
7243 		}
7244 	} else {
7245 		dwrq->flags = 1; /* Should be define'd */
7246 		memcpy(extra + sizeof(struct sockaddr) * i, qual,
7247 		       sizeof(struct iw_quality) * i);
7248 	}
7249 	dwrq->length = i;
7250 
7251 	kfree(qual);
7252 	return 0;
7253 }
7254 
7255 /*------------------------------------------------------------------*/
7256 /*
7257  * Wireless Handler : Initiate Scan
7258  */
airo_set_scan(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)7259 static int airo_set_scan(struct net_device *dev,
7260 			 struct iw_request_info *info,
7261 			 struct iw_point *dwrq,
7262 			 char *extra)
7263 {
7264 	struct airo_info *ai = dev->ml_priv;
7265 	Cmd cmd;
7266 	Resp rsp;
7267 	int wake = 0;
7268 	APListRid APList_rid_empty;
7269 
7270 	/* Note : you may have realised that, as this is a SET operation,
7271 	 * this is privileged and therefore a normal user can't
7272 	 * perform scanning.
7273 	 * This is not an error, while the device perform scanning,
7274 	 * traffic doesn't flow, so it's a perfect DoS...
7275 	 * Jean II */
7276 	if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN;
7277 
7278 	if (down_interruptible(&ai->sem))
7279 		return -ERESTARTSYS;
7280 
7281 	/* If there's already a scan in progress, don't
7282 	 * trigger another one. */
7283 	if (ai->scan_timeout > 0)
7284 		goto out;
7285 
7286 	/* Clear APList as it affects scan results */
7287 	memset(&APList_rid_empty, 0, sizeof(APList_rid_empty));
7288 	APList_rid_empty.len = cpu_to_le16(sizeof(APList_rid_empty));
7289 	disable_MAC(ai, 2);
7290 	writeAPListRid(ai, &APList_rid_empty, 0);
7291 	enable_MAC(ai, 0);
7292 
7293 	/* Initiate a scan command */
7294 	ai->scan_timeout = RUN_AT(3*HZ);
7295 	memset(&cmd, 0, sizeof(cmd));
7296 	cmd.cmd = CMD_LISTBSS;
7297 	issuecommand(ai, &cmd, &rsp);
7298 	wake = 1;
7299 
7300 out:
7301 	up(&ai->sem);
7302 	if (wake)
7303 		wake_up_interruptible(&ai->thr_wait);
7304 	return 0;
7305 }
7306 
7307 /*------------------------------------------------------------------*/
7308 /*
7309  * Translate scan data returned from the card to a card independent
7310  * format that the Wireless Tools will understand - Jean II
7311  */
airo_translate_scan(struct net_device * dev,struct iw_request_info * info,char * current_ev,char * end_buf,BSSListRid * bss)7312 static inline char *airo_translate_scan(struct net_device *dev,
7313 					struct iw_request_info *info,
7314 					char *current_ev,
7315 					char *end_buf,
7316 					BSSListRid *bss)
7317 {
7318 	struct airo_info *ai = dev->ml_priv;
7319 	struct iw_event		iwe;		/* Temporary buffer */
7320 	__le16			capabilities;
7321 	char *			current_val;	/* For rates */
7322 	int			i;
7323 	char *		buf;
7324 	u16 dBm;
7325 
7326 	/* First entry *MUST* be the AP MAC address */
7327 	iwe.cmd = SIOCGIWAP;
7328 	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
7329 	memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN);
7330 	current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7331 					  &iwe, IW_EV_ADDR_LEN);
7332 
7333 	/* Other entries will be displayed in the order we give them */
7334 
7335 	/* Add the ESSID */
7336 	iwe.u.data.length = bss->ssidLen;
7337 	if (iwe.u.data.length > 32)
7338 		iwe.u.data.length = 32;
7339 	iwe.cmd = SIOCGIWESSID;
7340 	iwe.u.data.flags = 1;
7341 	current_ev = iwe_stream_add_point(info, current_ev, end_buf,
7342 					  &iwe, bss->ssid);
7343 
7344 	/* Add mode */
7345 	iwe.cmd = SIOCGIWMODE;
7346 	capabilities = bss->cap;
7347 	if (capabilities & (CAP_ESS | CAP_IBSS)) {
7348 		if (capabilities & CAP_ESS)
7349 			iwe.u.mode = IW_MODE_MASTER;
7350 		else
7351 			iwe.u.mode = IW_MODE_ADHOC;
7352 		current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7353 						  &iwe, IW_EV_UINT_LEN);
7354 	}
7355 
7356 	/* Add frequency */
7357 	iwe.cmd = SIOCGIWFREQ;
7358 	iwe.u.freq.m = le16_to_cpu(bss->dsChannel);
7359 	iwe.u.freq.m = 100000 *
7360 	      ieee80211_channel_to_frequency(iwe.u.freq.m, NL80211_BAND_2GHZ);
7361 	iwe.u.freq.e = 1;
7362 	current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7363 					  &iwe, IW_EV_FREQ_LEN);
7364 
7365 	dBm = le16_to_cpu(bss->dBm);
7366 
7367 	/* Add quality statistics */
7368 	iwe.cmd = IWEVQUAL;
7369 	if (ai->rssi) {
7370 		iwe.u.qual.level = 0x100 - dBm;
7371 		iwe.u.qual.qual = airo_dbm_to_pct(ai->rssi, dBm);
7372 		iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED
7373 				| IW_QUAL_LEVEL_UPDATED
7374 				| IW_QUAL_DBM;
7375 	} else {
7376 		iwe.u.qual.level = (dBm + 321) / 2;
7377 		iwe.u.qual.qual = 0;
7378 		iwe.u.qual.updated = IW_QUAL_QUAL_INVALID
7379 				| IW_QUAL_LEVEL_UPDATED
7380 				| IW_QUAL_DBM;
7381 	}
7382 	iwe.u.qual.noise = ai->wstats.qual.noise;
7383 	current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7384 					  &iwe, IW_EV_QUAL_LEN);
7385 
7386 	/* Add encryption capability */
7387 	iwe.cmd = SIOCGIWENCODE;
7388 	if (capabilities & CAP_PRIVACY)
7389 		iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
7390 	else
7391 		iwe.u.data.flags = IW_ENCODE_DISABLED;
7392 	iwe.u.data.length = 0;
7393 	current_ev = iwe_stream_add_point(info, current_ev, end_buf,
7394 					  &iwe, bss->ssid);
7395 
7396 	/* Rate : stuffing multiple values in a single event require a bit
7397 	 * more of magic - Jean II */
7398 	current_val = current_ev + iwe_stream_lcp_len(info);
7399 
7400 	iwe.cmd = SIOCGIWRATE;
7401 	/* Those two flags are ignored... */
7402 	iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
7403 	/* Max 8 values */
7404 	for (i = 0 ; i < 8 ; i++) {
7405 		/* NULL terminated */
7406 		if (bss->rates[i] == 0)
7407 			break;
7408 		/* Bit rate given in 500 kb/s units (+ 0x80) */
7409 		iwe.u.bitrate.value = ((bss->rates[i] & 0x7f) * 500000);
7410 		/* Add new value to event */
7411 		current_val = iwe_stream_add_value(info, current_ev,
7412 						   current_val, end_buf,
7413 						   &iwe, IW_EV_PARAM_LEN);
7414 	}
7415 	/* Check if we added any event */
7416 	if ((current_val - current_ev) > iwe_stream_lcp_len(info))
7417 		current_ev = current_val;
7418 
7419 	/* Beacon interval */
7420 	buf = kmalloc(30, GFP_KERNEL);
7421 	if (buf) {
7422 		iwe.cmd = IWEVCUSTOM;
7423 		sprintf(buf, "bcn_int=%d", bss->beaconInterval);
7424 		iwe.u.data.length = strlen(buf);
7425 		current_ev = iwe_stream_add_point(info, current_ev, end_buf,
7426 						  &iwe, buf);
7427 		kfree(buf);
7428 	}
7429 
7430 	/* Put WPA/RSN Information Elements into the event stream */
7431 	if (test_bit(FLAG_WPA_CAPABLE, &ai->flags)) {
7432 		unsigned int num_null_ies = 0;
7433 		u16 length = sizeof (bss->extra.iep);
7434 		u8 *ie = (void *)&bss->extra.iep;
7435 
7436 		while ((length >= 2) && (num_null_ies < 2)) {
7437 			if (2 + ie[1] > length) {
7438 				/* Invalid element, don't continue parsing IE */
7439 				break;
7440 			}
7441 
7442 			switch (ie[0]) {
7443 			case WLAN_EID_SSID:
7444 				/* Two zero-length SSID elements
7445 				 * mean we're done parsing elements */
7446 				if (!ie[1])
7447 					num_null_ies++;
7448 				break;
7449 
7450 			case WLAN_EID_VENDOR_SPECIFIC:
7451 				if (ie[1] >= 4 &&
7452 				    ie[2] == 0x00 &&
7453 				    ie[3] == 0x50 &&
7454 				    ie[4] == 0xf2 &&
7455 				    ie[5] == 0x01) {
7456 					iwe.cmd = IWEVGENIE;
7457 					/* 64 is an arbitrary cut-off */
7458 					iwe.u.data.length = min(ie[1] + 2,
7459 								64);
7460 					current_ev = iwe_stream_add_point(
7461 							info, current_ev,
7462 							end_buf, &iwe, ie);
7463 				}
7464 				break;
7465 
7466 			case WLAN_EID_RSN:
7467 				iwe.cmd = IWEVGENIE;
7468 				/* 64 is an arbitrary cut-off */
7469 				iwe.u.data.length = min(ie[1] + 2, 64);
7470 				current_ev = iwe_stream_add_point(
7471 					info, current_ev, end_buf,
7472 					&iwe, ie);
7473 				break;
7474 
7475 			default:
7476 				break;
7477 			}
7478 
7479 			length -= 2 + ie[1];
7480 			ie += 2 + ie[1];
7481 		}
7482 	}
7483 	return current_ev;
7484 }
7485 
7486 /*------------------------------------------------------------------*/
7487 /*
7488  * Wireless Handler : Read Scan Results
7489  */
airo_get_scan(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)7490 static int airo_get_scan(struct net_device *dev,
7491 			 struct iw_request_info *info,
7492 			 struct iw_point *dwrq,
7493 			 char *extra)
7494 {
7495 	struct airo_info *ai = dev->ml_priv;
7496 	BSSListElement *net;
7497 	int err = 0;
7498 	char *current_ev = extra;
7499 
7500 	/* If a scan is in-progress, return -EAGAIN */
7501 	if (ai->scan_timeout > 0)
7502 		return -EAGAIN;
7503 
7504 	if (down_interruptible(&ai->sem))
7505 		return -EAGAIN;
7506 
7507 	list_for_each_entry (net, &ai->network_list, list) {
7508 		/* Translate to WE format this entry */
7509 		current_ev = airo_translate_scan(dev, info, current_ev,
7510 						 extra + dwrq->length,
7511 						 &net->bss);
7512 
7513 		/* Check if there is space for one more entry */
7514 		if ((extra + dwrq->length - current_ev) <= IW_EV_ADDR_LEN) {
7515 			/* Ask user space to try again with a bigger buffer */
7516 			err = -E2BIG;
7517 			goto out;
7518 		}
7519 	}
7520 
7521 	/* Length of data */
7522 	dwrq->length = (current_ev - extra);
7523 	dwrq->flags = 0;	/* todo */
7524 
7525 out:
7526 	up(&ai->sem);
7527 	return err;
7528 }
7529 
7530 /*------------------------------------------------------------------*/
7531 /*
7532  * Commit handler : called after a bunch of SET operations
7533  */
airo_config_commit(struct net_device * dev,struct iw_request_info * info,void * zwrq,char * extra)7534 static int airo_config_commit(struct net_device *dev,
7535 			      struct iw_request_info *info,	/* NULL */
7536 			      void *zwrq,			/* NULL */
7537 			      char *extra)			/* NULL */
7538 {
7539 	struct airo_info *local = dev->ml_priv;
7540 
7541 	if (!test_bit (FLAG_COMMIT, &local->flags))
7542 		return 0;
7543 
7544 	/* Some of the "SET" function may have modified some of the
7545 	 * parameters. It's now time to commit them in the card */
7546 	disable_MAC(local, 1);
7547 	if (test_bit (FLAG_RESET, &local->flags)) {
7548 		SsidRid SSID_rid;
7549 
7550 		readSsidRid(local, &SSID_rid);
7551 		if (test_bit(FLAG_MPI,&local->flags))
7552 			setup_card(local, dev->dev_addr, 1);
7553 		else
7554 			reset_airo_card(dev);
7555 		disable_MAC(local, 1);
7556 		writeSsidRid(local, &SSID_rid, 1);
7557 		writeAPListRid(local, &local->APList, 1);
7558 	}
7559 	if (down_interruptible(&local->sem))
7560 		return -ERESTARTSYS;
7561 	writeConfigRid(local, 0);
7562 	enable_MAC(local, 0);
7563 	if (test_bit (FLAG_RESET, &local->flags))
7564 		airo_set_promisc(local);
7565 	else
7566 		up(&local->sem);
7567 
7568 	return 0;
7569 }
7570 
7571 /*------------------------------------------------------------------*/
7572 /*
7573  * Structures to export the Wireless Handlers
7574  */
7575 
7576 static const struct iw_priv_args airo_private_args[] = {
7577 /*{ cmd,         set_args,                            get_args, name } */
7578   { AIROIOCTL, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof (aironet_ioctl),
7579     IW_PRIV_TYPE_BYTE | 2047, "airoioctl" },
7580   { AIROIDIFC, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof (aironet_ioctl),
7581     IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "airoidifc" },
7582 };
7583 
7584 static const iw_handler		airo_handler[] =
7585 {
7586 	(iw_handler) airo_config_commit,	/* SIOCSIWCOMMIT */
7587 	(iw_handler) airo_get_name,		/* SIOCGIWNAME */
7588 	(iw_handler) NULL,			/* SIOCSIWNWID */
7589 	(iw_handler) NULL,			/* SIOCGIWNWID */
7590 	(iw_handler) airo_set_freq,		/* SIOCSIWFREQ */
7591 	(iw_handler) airo_get_freq,		/* SIOCGIWFREQ */
7592 	(iw_handler) airo_set_mode,		/* SIOCSIWMODE */
7593 	(iw_handler) airo_get_mode,		/* SIOCGIWMODE */
7594 	(iw_handler) airo_set_sens,		/* SIOCSIWSENS */
7595 	(iw_handler) airo_get_sens,		/* SIOCGIWSENS */
7596 	(iw_handler) NULL,			/* SIOCSIWRANGE */
7597 	(iw_handler) airo_get_range,		/* SIOCGIWRANGE */
7598 	(iw_handler) NULL,			/* SIOCSIWPRIV */
7599 	(iw_handler) NULL,			/* SIOCGIWPRIV */
7600 	(iw_handler) NULL,			/* SIOCSIWSTATS */
7601 	(iw_handler) NULL,			/* SIOCGIWSTATS */
7602 	iw_handler_set_spy,			/* SIOCSIWSPY */
7603 	iw_handler_get_spy,			/* SIOCGIWSPY */
7604 	iw_handler_set_thrspy,			/* SIOCSIWTHRSPY */
7605 	iw_handler_get_thrspy,			/* SIOCGIWTHRSPY */
7606 	(iw_handler) airo_set_wap,		/* SIOCSIWAP */
7607 	(iw_handler) airo_get_wap,		/* SIOCGIWAP */
7608 	(iw_handler) NULL,			/* -- hole -- */
7609 	(iw_handler) airo_get_aplist,		/* SIOCGIWAPLIST */
7610 	(iw_handler) airo_set_scan,		/* SIOCSIWSCAN */
7611 	(iw_handler) airo_get_scan,		/* SIOCGIWSCAN */
7612 	(iw_handler) airo_set_essid,		/* SIOCSIWESSID */
7613 	(iw_handler) airo_get_essid,		/* SIOCGIWESSID */
7614 	(iw_handler) airo_set_nick,		/* SIOCSIWNICKN */
7615 	(iw_handler) airo_get_nick,		/* SIOCGIWNICKN */
7616 	(iw_handler) NULL,			/* -- hole -- */
7617 	(iw_handler) NULL,			/* -- hole -- */
7618 	(iw_handler) airo_set_rate,		/* SIOCSIWRATE */
7619 	(iw_handler) airo_get_rate,		/* SIOCGIWRATE */
7620 	(iw_handler) airo_set_rts,		/* SIOCSIWRTS */
7621 	(iw_handler) airo_get_rts,		/* SIOCGIWRTS */
7622 	(iw_handler) airo_set_frag,		/* SIOCSIWFRAG */
7623 	(iw_handler) airo_get_frag,		/* SIOCGIWFRAG */
7624 	(iw_handler) airo_set_txpow,		/* SIOCSIWTXPOW */
7625 	(iw_handler) airo_get_txpow,		/* SIOCGIWTXPOW */
7626 	(iw_handler) airo_set_retry,		/* SIOCSIWRETRY */
7627 	(iw_handler) airo_get_retry,		/* SIOCGIWRETRY */
7628 	(iw_handler) airo_set_encode,		/* SIOCSIWENCODE */
7629 	(iw_handler) airo_get_encode,		/* SIOCGIWENCODE */
7630 	(iw_handler) airo_set_power,		/* SIOCSIWPOWER */
7631 	(iw_handler) airo_get_power,		/* SIOCGIWPOWER */
7632 	(iw_handler) NULL,			/* -- hole -- */
7633 	(iw_handler) NULL,			/* -- hole -- */
7634 	(iw_handler) NULL,			/* SIOCSIWGENIE */
7635 	(iw_handler) NULL,			/* SIOCGIWGENIE */
7636 	(iw_handler) airo_set_auth,		/* SIOCSIWAUTH */
7637 	(iw_handler) airo_get_auth,		/* SIOCGIWAUTH */
7638 	(iw_handler) airo_set_encodeext,	/* SIOCSIWENCODEEXT */
7639 	(iw_handler) airo_get_encodeext,	/* SIOCGIWENCODEEXT */
7640 	(iw_handler) NULL,			/* SIOCSIWPMKSA */
7641 };
7642 
7643 /* Note : don't describe AIROIDIFC and AIROOLDIDIFC in here.
7644  * We want to force the use of the ioctl code, because those can't be
7645  * won't work the iw_handler code (because they simultaneously read
7646  * and write data and iw_handler can't do that).
7647  * Note that it's perfectly legal to read/write on a single ioctl command,
7648  * you just can't use iwpriv and need to force it via the ioctl handler.
7649  * Jean II */
7650 static const iw_handler		airo_private_handler[] =
7651 {
7652 	NULL,				/* SIOCIWFIRSTPRIV */
7653 };
7654 
7655 static const struct iw_handler_def	airo_handler_def =
7656 {
7657 	.num_standard	= ARRAY_SIZE(airo_handler),
7658 	.num_private	= ARRAY_SIZE(airo_private_handler),
7659 	.num_private_args = ARRAY_SIZE(airo_private_args),
7660 	.standard	= airo_handler,
7661 	.private	= airo_private_handler,
7662 	.private_args	= airo_private_args,
7663 	.get_wireless_stats = airo_get_wireless_stats,
7664 };
7665 
7666 /*
7667  * This defines the configuration part of the Wireless Extensions
7668  * Note : irq and spinlock protection will occur in the subroutines
7669  *
7670  * TODO :
7671  *	o Check input value more carefully and fill correct values in range
7672  *	o Test and shakeout the bugs (if any)
7673  *
7674  * Jean II
7675  *
7676  * Javier Achirica did a great job of merging code from the unnamed CISCO
7677  * developer that added support for flashing the card.
7678  */
airo_ioctl(struct net_device * dev,struct ifreq * rq,int cmd)7679 static int airo_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
7680 {
7681 	int rc = 0;
7682 	struct airo_info *ai = dev->ml_priv;
7683 
7684 	if (ai->power.event)
7685 		return 0;
7686 
7687 	switch (cmd) {
7688 #ifdef CISCO_EXT
7689 	case AIROIDIFC:
7690 #ifdef AIROOLDIDIFC
7691 	case AIROOLDIDIFC:
7692 #endif
7693 	{
7694 		int val = AIROMAGIC;
7695 		aironet_ioctl com;
7696 		if (copy_from_user(&com, rq->ifr_data, sizeof(com)))
7697 			rc = -EFAULT;
7698 		else if (copy_to_user(com.data, (char *)&val, sizeof(val)))
7699 			rc = -EFAULT;
7700 	}
7701 	break;
7702 
7703 	case AIROIOCTL:
7704 #ifdef AIROOLDIOCTL
7705 	case AIROOLDIOCTL:
7706 #endif
7707 		/* Get the command struct and hand it off for evaluation by
7708 		 * the proper subfunction
7709 		 */
7710 	{
7711 		aironet_ioctl com;
7712 		if (copy_from_user(&com, rq->ifr_data, sizeof(com))) {
7713 			rc = -EFAULT;
7714 			break;
7715 		}
7716 
7717 		/* Separate R/W functions bracket legality here
7718 		 */
7719 		if (com.command == AIRORSWVERSION) {
7720 			if (copy_to_user(com.data, swversion, sizeof(swversion)))
7721 				rc = -EFAULT;
7722 			else
7723 				rc = 0;
7724 		}
7725 		else if (com.command <= AIRORRID)
7726 			rc = readrids(dev,&com);
7727 		else if (com.command >= AIROPCAP && com.command <= (AIROPLEAPUSR+2))
7728 			rc = writerids(dev,&com);
7729 		else if (com.command >= AIROFLSHRST && com.command <= AIRORESTART)
7730 			rc = flashcard(dev,&com);
7731 		else
7732 			rc = -EINVAL;      /* Bad command in ioctl */
7733 	}
7734 	break;
7735 #endif /* CISCO_EXT */
7736 
7737 	// All other calls are currently unsupported
7738 	default:
7739 		rc = -EOPNOTSUPP;
7740 	}
7741 	return rc;
7742 }
7743 
7744 /*
7745  * Get the Wireless stats out of the driver
7746  * Note : irq and spinlock protection will occur in the subroutines
7747  *
7748  * TODO :
7749  *	o Check if work in Ad-Hoc mode (otherwise, use SPY, as in wvlan_cs)
7750  *
7751  * Jean
7752  */
airo_read_wireless_stats(struct airo_info * local)7753 static void airo_read_wireless_stats(struct airo_info *local)
7754 {
7755 	StatusRid status_rid;
7756 	StatsRid stats_rid;
7757 	CapabilityRid cap_rid;
7758 	__le32 *vals = stats_rid.vals;
7759 
7760 	/* Get stats out of the card */
7761 	clear_bit(JOB_WSTATS, &local->jobs);
7762 	if (local->power.event) {
7763 		up(&local->sem);
7764 		return;
7765 	}
7766 	readCapabilityRid(local, &cap_rid, 0);
7767 	readStatusRid(local, &status_rid, 0);
7768 	readStatsRid(local, &stats_rid, RID_STATS, 0);
7769 	up(&local->sem);
7770 
7771 	/* The status */
7772 	local->wstats.status = le16_to_cpu(status_rid.mode);
7773 
7774 	/* Signal quality and co */
7775 	if (local->rssi) {
7776 		local->wstats.qual.level =
7777 			airo_rssi_to_dbm(local->rssi,
7778 					 le16_to_cpu(status_rid.sigQuality));
7779 		/* normalizedSignalStrength appears to be a percentage */
7780 		local->wstats.qual.qual =
7781 			le16_to_cpu(status_rid.normalizedSignalStrength);
7782 	} else {
7783 		local->wstats.qual.level =
7784 			(le16_to_cpu(status_rid.normalizedSignalStrength) + 321) / 2;
7785 		local->wstats.qual.qual = airo_get_quality(&status_rid, &cap_rid);
7786 	}
7787 	if (le16_to_cpu(status_rid.len) >= 124) {
7788 		local->wstats.qual.noise = 0x100 - status_rid.noisedBm;
7789 		local->wstats.qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
7790 	} else {
7791 		local->wstats.qual.noise = 0;
7792 		local->wstats.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | IW_QUAL_NOISE_INVALID | IW_QUAL_DBM;
7793 	}
7794 
7795 	/* Packets discarded in the wireless adapter due to wireless
7796 	 * specific problems */
7797 	local->wstats.discard.nwid = le32_to_cpu(vals[56]) +
7798 				     le32_to_cpu(vals[57]) +
7799 				     le32_to_cpu(vals[58]); /* SSID Mismatch */
7800 	local->wstats.discard.code = le32_to_cpu(vals[6]);/* RxWepErr */
7801 	local->wstats.discard.fragment = le32_to_cpu(vals[30]);
7802 	local->wstats.discard.retries = le32_to_cpu(vals[10]);
7803 	local->wstats.discard.misc = le32_to_cpu(vals[1]) +
7804 				     le32_to_cpu(vals[32]);
7805 	local->wstats.miss.beacon = le32_to_cpu(vals[34]);
7806 }
7807 
airo_get_wireless_stats(struct net_device * dev)7808 static struct iw_statistics *airo_get_wireless_stats(struct net_device *dev)
7809 {
7810 	struct airo_info *local =  dev->ml_priv;
7811 
7812 	if (!test_bit(JOB_WSTATS, &local->jobs)) {
7813 		/* Get stats out of the card if available */
7814 		if (down_trylock(&local->sem) != 0) {
7815 			set_bit(JOB_WSTATS, &local->jobs);
7816 			wake_up_interruptible(&local->thr_wait);
7817 		} else
7818 			airo_read_wireless_stats(local);
7819 	}
7820 
7821 	return &local->wstats;
7822 }
7823 
7824 #ifdef CISCO_EXT
7825 /*
7826  * This just translates from driver IOCTL codes to the command codes to
7827  * feed to the radio's host interface. Things can be added/deleted
7828  * as needed.  This represents the READ side of control I/O to
7829  * the card
7830  */
readrids(struct net_device * dev,aironet_ioctl * comp)7831 static int readrids(struct net_device *dev, aironet_ioctl *comp)
7832 {
7833 	unsigned short ridcode;
7834 	unsigned char *iobuf;
7835 	int len;
7836 	struct airo_info *ai = dev->ml_priv;
7837 
7838 	if (test_bit(FLAG_FLASHING, &ai->flags))
7839 		return -EIO;
7840 
7841 	switch(comp->command)
7842 	{
7843 	case AIROGCAP:      ridcode = RID_CAPABILITIES; break;
7844 	case AIROGCFG:      ridcode = RID_CONFIG;
7845 		if (test_bit(FLAG_COMMIT, &ai->flags)) {
7846 			disable_MAC (ai, 1);
7847 			writeConfigRid (ai, 1);
7848 			enable_MAC(ai, 1);
7849 		}
7850 		break;
7851 	case AIROGSLIST:    ridcode = RID_SSID;         break;
7852 	case AIROGVLIST:    ridcode = RID_APLIST;       break;
7853 	case AIROGDRVNAM:   ridcode = RID_DRVNAME;      break;
7854 	case AIROGEHTENC:   ridcode = RID_ETHERENCAP;   break;
7855 	case AIROGWEPKTMP:  ridcode = RID_WEP_TEMP;	break;
7856 	case AIROGWEPKNV:   ridcode = RID_WEP_PERM;	break;
7857 	case AIROGSTAT:     ridcode = RID_STATUS;       break;
7858 	case AIROGSTATSD32: ridcode = RID_STATSDELTA;   break;
7859 	case AIROGSTATSC32: ridcode = RID_STATS;        break;
7860 	case AIROGMICSTATS:
7861 		if (copy_to_user(comp->data, &ai->micstats,
7862 				 min((int)comp->len, (int)sizeof(ai->micstats))))
7863 			return -EFAULT;
7864 		return 0;
7865 	case AIRORRID:      ridcode = comp->ridnum;     break;
7866 	default:
7867 		return -EINVAL;
7868 	}
7869 
7870 	if (ridcode == RID_WEP_TEMP || ridcode == RID_WEP_PERM) {
7871 		/* Only super-user can read WEP keys */
7872 		if (!capable(CAP_NET_ADMIN))
7873 			return -EPERM;
7874 	}
7875 
7876 	if ((iobuf = kzalloc(RIDSIZE, GFP_KERNEL)) == NULL)
7877 		return -ENOMEM;
7878 
7879 	PC4500_readrid(ai, ridcode, iobuf, RIDSIZE, 1);
7880 	/* get the count of bytes in the rid  docs say 1st 2 bytes is it.
7881 	 * then return it to the user
7882 	 * 9/22/2000 Honor user given length
7883 	 */
7884 	len = comp->len;
7885 
7886 	if (copy_to_user(comp->data, iobuf, min(len, (int)RIDSIZE))) {
7887 		kfree (iobuf);
7888 		return -EFAULT;
7889 	}
7890 	kfree (iobuf);
7891 	return 0;
7892 }
7893 
7894 /*
7895  * Danger Will Robinson write the rids here
7896  */
7897 
writerids(struct net_device * dev,aironet_ioctl * comp)7898 static int writerids(struct net_device *dev, aironet_ioctl *comp)
7899 {
7900 	struct airo_info *ai = dev->ml_priv;
7901 	int  ridcode;
7902         int  enabled;
7903 	int (*writer)(struct airo_info *, u16 rid, const void *, int, int);
7904 	unsigned char *iobuf;
7905 
7906 	/* Only super-user can write RIDs */
7907 	if (!capable(CAP_NET_ADMIN))
7908 		return -EPERM;
7909 
7910 	if (test_bit(FLAG_FLASHING, &ai->flags))
7911 		return -EIO;
7912 
7913 	ridcode = 0;
7914 	writer = do_writerid;
7915 
7916 	switch(comp->command)
7917 	{
7918 	case AIROPSIDS:     ridcode = RID_SSID;         break;
7919 	case AIROPCAP:      ridcode = RID_CAPABILITIES; break;
7920 	case AIROPAPLIST:   ridcode = RID_APLIST;       break;
7921 	case AIROPCFG: ai->config.len = 0;
7922 			    clear_bit(FLAG_COMMIT, &ai->flags);
7923 			    ridcode = RID_CONFIG;       break;
7924 	case AIROPWEPKEYNV: ridcode = RID_WEP_PERM;     break;
7925 	case AIROPLEAPUSR:  ridcode = RID_LEAPUSERNAME; break;
7926 	case AIROPLEAPPWD:  ridcode = RID_LEAPPASSWORD; break;
7927 	case AIROPWEPKEY:   ridcode = RID_WEP_TEMP; writer = PC4500_writerid;
7928 		break;
7929 	case AIROPLEAPUSR+1: ridcode = 0xFF2A;          break;
7930 	case AIROPLEAPUSR+2: ridcode = 0xFF2B;          break;
7931 
7932 		/* this is not really a rid but a command given to the card
7933 		 * same with MAC off
7934 		 */
7935 	case AIROPMACON:
7936 		if (enable_MAC(ai, 1) != 0)
7937 			return -EIO;
7938 		return 0;
7939 
7940 		/*
7941 		 * Evidently this code in the airo driver does not get a symbol
7942 		 * as disable_MAC. it's probably so short the compiler does not gen one.
7943 		 */
7944 	case AIROPMACOFF:
7945 		disable_MAC(ai, 1);
7946 		return 0;
7947 
7948 		/* This command merely clears the counts does not actually store any data
7949 		 * only reads rid. But as it changes the cards state, I put it in the
7950 		 * writerid routines.
7951 		 */
7952 	case AIROPSTCLR:
7953 		if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL)
7954 			return -ENOMEM;
7955 
7956 		PC4500_readrid(ai, RID_STATSDELTACLEAR, iobuf, RIDSIZE, 1);
7957 
7958 		enabled = ai->micstats.enabled;
7959 		memset(&ai->micstats, 0, sizeof(ai->micstats));
7960 		ai->micstats.enabled = enabled;
7961 
7962 		if (copy_to_user(comp->data, iobuf,
7963 				 min((int)comp->len, (int)RIDSIZE))) {
7964 			kfree (iobuf);
7965 			return -EFAULT;
7966 		}
7967 		kfree (iobuf);
7968 		return 0;
7969 
7970 	default:
7971 		return -EOPNOTSUPP;	/* Blarg! */
7972 	}
7973 	if (comp->len > RIDSIZE)
7974 		return -EINVAL;
7975 
7976 	if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL)
7977 		return -ENOMEM;
7978 
7979 	if (copy_from_user(iobuf, comp->data, comp->len)) {
7980 		kfree (iobuf);
7981 		return -EFAULT;
7982 	}
7983 
7984 	if (comp->command == AIROPCFG) {
7985 		ConfigRid *cfg = (ConfigRid *)iobuf;
7986 
7987 		if (test_bit(FLAG_MIC_CAPABLE, &ai->flags))
7988 			cfg->opmode |= MODE_MIC;
7989 
7990 		if ((cfg->opmode & MODE_CFG_MASK) == MODE_STA_IBSS)
7991 			set_bit (FLAG_ADHOC, &ai->flags);
7992 		else
7993 			clear_bit (FLAG_ADHOC, &ai->flags);
7994 	}
7995 
7996 	if ((*writer)(ai, ridcode, iobuf, comp->len, 1)) {
7997 		kfree (iobuf);
7998 		return -EIO;
7999 	}
8000 	kfree (iobuf);
8001 	return 0;
8002 }
8003 
8004 /*****************************************************************************
8005  * Ancillary flash / mod functions much black magic lurkes here              *
8006  *****************************************************************************
8007  */
8008 
8009 /*
8010  * Flash command switch table
8011  */
8012 
flashcard(struct net_device * dev,aironet_ioctl * comp)8013 static int flashcard(struct net_device *dev, aironet_ioctl *comp)
8014 {
8015 	int z;
8016 
8017 	/* Only super-user can modify flash */
8018 	if (!capable(CAP_NET_ADMIN))
8019 		return -EPERM;
8020 
8021 	switch(comp->command)
8022 	{
8023 	case AIROFLSHRST:
8024 		return cmdreset((struct airo_info *)dev->ml_priv);
8025 
8026 	case AIROFLSHSTFL:
8027 		if (!AIRO_FLASH(dev) &&
8028 		    (AIRO_FLASH(dev) = kmalloc(FLASHSIZE, GFP_KERNEL)) == NULL)
8029 			return -ENOMEM;
8030 		return setflashmode((struct airo_info *)dev->ml_priv);
8031 
8032 	case AIROFLSHGCHR: /* Get char from aux */
8033 		if (comp->len != sizeof(int))
8034 			return -EINVAL;
8035 		if (copy_from_user(&z, comp->data, comp->len))
8036 			return -EFAULT;
8037 		return flashgchar((struct airo_info *)dev->ml_priv, z, 8000);
8038 
8039 	case AIROFLSHPCHR: /* Send char to card. */
8040 		if (comp->len != sizeof(int))
8041 			return -EINVAL;
8042 		if (copy_from_user(&z, comp->data, comp->len))
8043 			return -EFAULT;
8044 		return flashpchar((struct airo_info *)dev->ml_priv, z, 8000);
8045 
8046 	case AIROFLPUTBUF: /* Send 32k to card */
8047 		if (!AIRO_FLASH(dev))
8048 			return -ENOMEM;
8049 		if (comp->len > FLASHSIZE)
8050 			return -EINVAL;
8051 		if (copy_from_user(AIRO_FLASH(dev), comp->data, comp->len))
8052 			return -EFAULT;
8053 
8054 		flashputbuf((struct airo_info *)dev->ml_priv);
8055 		return 0;
8056 
8057 	case AIRORESTART:
8058 		if (flashrestart((struct airo_info *)dev->ml_priv, dev))
8059 			return -EIO;
8060 		return 0;
8061 	}
8062 	return -EINVAL;
8063 }
8064 
8065 #define FLASH_COMMAND  0x7e7e
8066 
8067 /*
8068  * STEP 1)
8069  * Disable MAC and do soft reset on
8070  * card.
8071  */
8072 
cmdreset(struct airo_info * ai)8073 static int cmdreset(struct airo_info *ai)
8074 {
8075 	disable_MAC(ai, 1);
8076 
8077 	if (!waitbusy (ai)) {
8078 		airo_print_info(ai->dev->name, "Waitbusy hang before RESET");
8079 		return -EBUSY;
8080 	}
8081 
8082 	OUT4500(ai, COMMAND, CMD_SOFTRESET);
8083 
8084 	ssleep(1);			/* WAS 600 12/7/00 */
8085 
8086 	if (!waitbusy (ai)) {
8087 		airo_print_info(ai->dev->name, "Waitbusy hang AFTER RESET");
8088 		return -EBUSY;
8089 	}
8090 	return 0;
8091 }
8092 
8093 /* STEP 2)
8094  * Put the card in legendary flash
8095  * mode
8096  */
8097 
setflashmode(struct airo_info * ai)8098 static int setflashmode (struct airo_info *ai)
8099 {
8100 	set_bit (FLAG_FLASHING, &ai->flags);
8101 
8102 	OUT4500(ai, SWS0, FLASH_COMMAND);
8103 	OUT4500(ai, SWS1, FLASH_COMMAND);
8104 	if (probe) {
8105 		OUT4500(ai, SWS0, FLASH_COMMAND);
8106 		OUT4500(ai, COMMAND, 0x10);
8107 	} else {
8108 		OUT4500(ai, SWS2, FLASH_COMMAND);
8109 		OUT4500(ai, SWS3, FLASH_COMMAND);
8110 		OUT4500(ai, COMMAND, 0);
8111 	}
8112 	msleep(500);		/* 500ms delay */
8113 
8114 	if (!waitbusy(ai)) {
8115 		clear_bit (FLAG_FLASHING, &ai->flags);
8116 		airo_print_info(ai->dev->name, "Waitbusy hang after setflash mode");
8117 		return -EIO;
8118 	}
8119 	return 0;
8120 }
8121 
8122 /* Put character to SWS0 wait for dwelltime
8123  * x 50us for  echo .
8124  */
8125 
flashpchar(struct airo_info * ai,int byte,int dwelltime)8126 static int flashpchar(struct airo_info *ai, int byte, int dwelltime)
8127 {
8128 	int echo;
8129 	int waittime;
8130 
8131 	byte |= 0x8000;
8132 
8133 	if (dwelltime == 0)
8134 		dwelltime = 200;
8135 
8136 	waittime = dwelltime;
8137 
8138 	/* Wait for busy bit d15 to go false indicating buffer empty */
8139 	while ((IN4500 (ai, SWS0) & 0x8000) && waittime > 0) {
8140 		udelay (50);
8141 		waittime -= 50;
8142 	}
8143 
8144 	/* timeout for busy clear wait */
8145 	if (waittime <= 0) {
8146 		airo_print_info(ai->dev->name, "flash putchar busywait timeout!");
8147 		return -EBUSY;
8148 	}
8149 
8150 	/* Port is clear now write byte and wait for it to echo back */
8151 	do {
8152 		OUT4500(ai, SWS0, byte);
8153 		udelay(50);
8154 		dwelltime -= 50;
8155 		echo = IN4500(ai, SWS1);
8156 	} while (dwelltime >= 0 && echo != byte);
8157 
8158 	OUT4500(ai, SWS1, 0);
8159 
8160 	return (echo == byte) ? 0 : -EIO;
8161 }
8162 
8163 /*
8164  * Get a character from the card matching matchbyte
8165  * Step 3)
8166  */
flashgchar(struct airo_info * ai,int matchbyte,int dwelltime)8167 static int flashgchar(struct airo_info *ai, int matchbyte, int dwelltime)
8168 {
8169 	int           rchar;
8170 	unsigned char rbyte = 0;
8171 
8172 	do {
8173 		rchar = IN4500(ai, SWS1);
8174 
8175 		if (dwelltime && !(0x8000 & rchar)) {
8176 			dwelltime -= 10;
8177 			mdelay(10);
8178 			continue;
8179 		}
8180 		rbyte = 0xff & rchar;
8181 
8182 		if ((rbyte == matchbyte) && (0x8000 & rchar)) {
8183 			OUT4500(ai, SWS1, 0);
8184 			return 0;
8185 		}
8186 		if (rbyte == 0x81 || rbyte == 0x82 || rbyte == 0x83 || rbyte == 0x1a || 0xffff == rchar)
8187 			break;
8188 		OUT4500(ai, SWS1, 0);
8189 
8190 	} while (dwelltime > 0);
8191 	return -EIO;
8192 }
8193 
8194 /*
8195  * Transfer 32k of firmware data from user buffer to our buffer and
8196  * send to the card
8197  */
8198 
flashputbuf(struct airo_info * ai)8199 static int flashputbuf(struct airo_info *ai)
8200 {
8201 	int            nwords;
8202 
8203 	/* Write stuff */
8204 	if (test_bit(FLAG_MPI,&ai->flags))
8205 		memcpy_toio(ai->pciaux + 0x8000, ai->flash, FLASHSIZE);
8206 	else {
8207 		OUT4500(ai, AUXPAGE, 0x100);
8208 		OUT4500(ai, AUXOFF, 0);
8209 
8210 		for (nwords = 0; nwords != FLASHSIZE / 2; nwords++) {
8211 			OUT4500(ai, AUXDATA, ai->flash[nwords] & 0xffff);
8212 		}
8213 	}
8214 	OUT4500(ai, SWS0, 0x8000);
8215 
8216 	return 0;
8217 }
8218 
8219 /*
8220  *
8221  */
flashrestart(struct airo_info * ai,struct net_device * dev)8222 static int flashrestart(struct airo_info *ai, struct net_device *dev)
8223 {
8224 	int    i, status;
8225 
8226 	ssleep(1);			/* Added 12/7/00 */
8227 	clear_bit (FLAG_FLASHING, &ai->flags);
8228 	if (test_bit(FLAG_MPI, &ai->flags)) {
8229 		status = mpi_init_descriptors(ai);
8230 		if (status != SUCCESS)
8231 			return status;
8232 	}
8233 	status = setup_card(ai, dev->dev_addr, 1);
8234 
8235 	if (!test_bit(FLAG_MPI,&ai->flags))
8236 		for (i = 0; i < MAX_FIDS; i++) {
8237 			ai->fids[i] = transmit_allocate
8238 				(ai, AIRO_DEF_MTU, i >= MAX_FIDS / 2);
8239 		}
8240 
8241 	ssleep(1);			/* Added 12/7/00 */
8242 	return status;
8243 }
8244 #endif /* CISCO_EXT */
8245 
8246 /*
8247     This program is free software; you can redistribute it and/or
8248     modify it under the terms of the GNU General Public License
8249     as published by the Free Software Foundation; either version 2
8250     of the License, or (at your option) any later version.
8251 
8252     This program is distributed in the hope that it will be useful,
8253     but WITHOUT ANY WARRANTY; without even the implied warranty of
8254     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
8255     GNU General Public License for more details.
8256 
8257     In addition:
8258 
8259     Redistribution and use in source and binary forms, with or without
8260     modification, are permitted provided that the following conditions
8261     are met:
8262 
8263     1. Redistributions of source code must retain the above copyright
8264        notice, this list of conditions and the following disclaimer.
8265     2. Redistributions in binary form must reproduce the above copyright
8266        notice, this list of conditions and the following disclaimer in the
8267        documentation and/or other materials provided with the distribution.
8268     3. The name of the author may not be used to endorse or promote
8269        products derived from this software without specific prior written
8270        permission.
8271 
8272     THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
8273     IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
8274     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
8275     ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
8276     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
8277     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
8278     SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
8279     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
8280     STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
8281     IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
8282     POSSIBILITY OF SUCH DAMAGE.
8283 */
8284 
8285 module_init(airo_init_module);
8286 module_exit(airo_cleanup_module);
8287