1 /*======================================================================
2 
3     Aironet driver for 4500 and 4800 series cards
4 
5     This code is released under both the GPL version 2 and BSD licenses.
6     Either license may be used.  The respective licenses are found at
7     the end of this file.
8 
9     This code was developed by Benjamin Reed <breed@users.sourceforge.net>
10     including portions of which come from the Aironet PC4500
11     Developer's Reference Manual and used with permission.  Copyright
12     (C) 1999 Benjamin Reed.  All Rights Reserved.  Permission to use
13     code in the Developer's manual was granted for this driver by
14     Aironet.  Major code contributions were received from Javier Achirica
15     <achirica@users.sourceforge.net> and Jean Tourrilhes <jt@hpl.hp.com>.
16     Code was also integrated from the Cisco Aironet driver for Linux.
17     Support for MPI350 cards was added by Fabrice Bellet
18     <fabrice@bellet.info>.
19 
20 ======================================================================*/
21 
22 #include <linux/err.h>
23 #include <linux/init.h>
24 
25 #include <linux/kernel.h>
26 #include <linux/module.h>
27 #include <linux/proc_fs.h>
28 
29 #include <linux/sched.h>
30 #include <linux/ptrace.h>
31 #include <linux/slab.h>
32 #include <linux/string.h>
33 #include <linux/timer.h>
34 #include <linux/interrupt.h>
35 #include <linux/in.h>
36 #include <linux/bitops.h>
37 #include <linux/scatterlist.h>
38 #include <linux/crypto.h>
39 #include <linux/io.h>
40 #include <asm/unaligned.h>
41 
42 #include <linux/netdevice.h>
43 #include <linux/etherdevice.h>
44 #include <linux/skbuff.h>
45 #include <linux/if_arp.h>
46 #include <linux/ioport.h>
47 #include <linux/pci.h>
48 #include <linux/uaccess.h>
49 #include <linux/kthread.h>
50 #include <linux/freezer.h>
51 
52 #include <crypto/aes.h>
53 #include <crypto/skcipher.h>
54 
55 #include <net/cfg80211.h>
56 #include <net/iw_handler.h>
57 
58 #include "airo.h"
59 
60 #define DRV_NAME "airo"
61 
62 #ifdef CONFIG_PCI
63 static const struct pci_device_id card_ids[] = {
64 	{ 0x14b9, 1, PCI_ANY_ID, PCI_ANY_ID, },
65 	{ 0x14b9, 0x4500, PCI_ANY_ID, PCI_ANY_ID },
66 	{ 0x14b9, 0x4800, PCI_ANY_ID, PCI_ANY_ID, },
67 	{ 0x14b9, 0x0340, PCI_ANY_ID, PCI_ANY_ID, },
68 	{ 0x14b9, 0x0350, PCI_ANY_ID, PCI_ANY_ID, },
69 	{ 0x14b9, 0x5000, PCI_ANY_ID, PCI_ANY_ID, },
70 	{ 0x14b9, 0xa504, PCI_ANY_ID, PCI_ANY_ID, },
71 	{ 0, }
72 };
73 MODULE_DEVICE_TABLE(pci, card_ids);
74 
75 static int airo_pci_probe(struct pci_dev *, const struct pci_device_id *);
76 static void airo_pci_remove(struct pci_dev *);
77 static int __maybe_unused airo_pci_suspend(struct device *dev);
78 static int __maybe_unused airo_pci_resume(struct device *dev);
79 
80 static SIMPLE_DEV_PM_OPS(airo_pci_pm_ops,
81 			 airo_pci_suspend,
82 			 airo_pci_resume);
83 
84 static struct pci_driver airo_driver = {
85 	.name      = DRV_NAME,
86 	.id_table  = card_ids,
87 	.probe     = airo_pci_probe,
88 	.remove    = airo_pci_remove,
89 	.driver.pm = &airo_pci_pm_ops,
90 };
91 #endif /* CONFIG_PCI */
92 
93 /* Include Wireless Extension definition and check version - Jean II */
94 #include <linux/wireless.h>
95 #define WIRELESS_SPY		/* enable iwspy support */
96 
97 #define CISCO_EXT		/* enable Cisco extensions */
98 #ifdef CISCO_EXT
99 #include <linux/delay.h>
100 #endif
101 
102 /* Hack to do some power saving */
103 #define POWER_ON_DOWN
104 
105 /* As you can see this list is HUGH!
106    I really don't know what a lot of these counts are about, but they
107    are all here for completeness.  If the IGNLABEL macro is put in
108    infront of the label, that statistic will not be included in the list
109    of statistics in the /proc filesystem */
110 
111 #define IGNLABEL(comment) NULL
112 static const char *statsLabels[] = {
113 	"RxOverrun",
114 	IGNLABEL("RxPlcpCrcErr"),
115 	IGNLABEL("RxPlcpFormatErr"),
116 	IGNLABEL("RxPlcpLengthErr"),
117 	"RxMacCrcErr",
118 	"RxMacCrcOk",
119 	"RxWepErr",
120 	"RxWepOk",
121 	"RetryLong",
122 	"RetryShort",
123 	"MaxRetries",
124 	"NoAck",
125 	"NoCts",
126 	"RxAck",
127 	"RxCts",
128 	"TxAck",
129 	"TxRts",
130 	"TxCts",
131 	"TxMc",
132 	"TxBc",
133 	"TxUcFrags",
134 	"TxUcPackets",
135 	"TxBeacon",
136 	"RxBeacon",
137 	"TxSinColl",
138 	"TxMulColl",
139 	"DefersNo",
140 	"DefersProt",
141 	"DefersEngy",
142 	"DupFram",
143 	"RxFragDisc",
144 	"TxAged",
145 	"RxAged",
146 	"LostSync-MaxRetry",
147 	"LostSync-MissedBeacons",
148 	"LostSync-ArlExceeded",
149 	"LostSync-Deauth",
150 	"LostSync-Disassoced",
151 	"LostSync-TsfTiming",
152 	"HostTxMc",
153 	"HostTxBc",
154 	"HostTxUc",
155 	"HostTxFail",
156 	"HostRxMc",
157 	"HostRxBc",
158 	"HostRxUc",
159 	"HostRxDiscard",
160 	IGNLABEL("HmacTxMc"),
161 	IGNLABEL("HmacTxBc"),
162 	IGNLABEL("HmacTxUc"),
163 	IGNLABEL("HmacTxFail"),
164 	IGNLABEL("HmacRxMc"),
165 	IGNLABEL("HmacRxBc"),
166 	IGNLABEL("HmacRxUc"),
167 	IGNLABEL("HmacRxDiscard"),
168 	IGNLABEL("HmacRxAccepted"),
169 	"SsidMismatch",
170 	"ApMismatch",
171 	"RatesMismatch",
172 	"AuthReject",
173 	"AuthTimeout",
174 	"AssocReject",
175 	"AssocTimeout",
176 	IGNLABEL("ReasonOutsideTable"),
177 	IGNLABEL("ReasonStatus1"),
178 	IGNLABEL("ReasonStatus2"),
179 	IGNLABEL("ReasonStatus3"),
180 	IGNLABEL("ReasonStatus4"),
181 	IGNLABEL("ReasonStatus5"),
182 	IGNLABEL("ReasonStatus6"),
183 	IGNLABEL("ReasonStatus7"),
184 	IGNLABEL("ReasonStatus8"),
185 	IGNLABEL("ReasonStatus9"),
186 	IGNLABEL("ReasonStatus10"),
187 	IGNLABEL("ReasonStatus11"),
188 	IGNLABEL("ReasonStatus12"),
189 	IGNLABEL("ReasonStatus13"),
190 	IGNLABEL("ReasonStatus14"),
191 	IGNLABEL("ReasonStatus15"),
192 	IGNLABEL("ReasonStatus16"),
193 	IGNLABEL("ReasonStatus17"),
194 	IGNLABEL("ReasonStatus18"),
195 	IGNLABEL("ReasonStatus19"),
196 	"RxMan",
197 	"TxMan",
198 	"RxRefresh",
199 	"TxRefresh",
200 	"RxPoll",
201 	"TxPoll",
202 	"HostRetries",
203 	"LostSync-HostReq",
204 	"HostTxBytes",
205 	"HostRxBytes",
206 	"ElapsedUsec",
207 	"ElapsedSec",
208 	"LostSyncBetterAP",
209 	"PrivacyMismatch",
210 	"Jammed",
211 	"DiscRxNotWepped",
212 	"PhyEleMismatch",
213 	(char*)-1 };
214 #ifndef RUN_AT
215 #define RUN_AT(x) (jiffies+(x))
216 #endif
217 
218 
219 /* These variables are for insmod, since it seems that the rates
220    can only be set in setup_card.  Rates should be a comma separated
221    (no spaces) list of rates (up to 8). */
222 
223 static int rates[8];
224 static char *ssids[3];
225 
226 static int io[4];
227 static int irq[4];
228 
229 static
230 int maxencrypt /* = 0 */; /* The highest rate that the card can encrypt at.
231 		       0 means no limit.  For old cards this was 4 */
232 
233 static int auto_wep /* = 0 */; /* If set, it tries to figure out the wep mode */
234 static int aux_bap /* = 0 */; /* Checks to see if the aux ports are needed to read
235 		    the bap, needed on some older cards and buses. */
236 static int adhoc;
237 
238 static int probe = 1;
239 
240 static kuid_t proc_kuid;
241 static int proc_uid /* = 0 */;
242 
243 static kgid_t proc_kgid;
244 static int proc_gid /* = 0 */;
245 
246 static int airo_perm = 0555;
247 
248 static int proc_perm = 0644;
249 
250 MODULE_AUTHOR("Benjamin Reed");
251 MODULE_DESCRIPTION("Support for Cisco/Aironet 802.11 wireless ethernet cards.  "
252 		   "Direct support for ISA/PCI/MPI cards and support for PCMCIA when used with airo_cs.");
253 MODULE_LICENSE("Dual BSD/GPL");
254 module_param_hw_array(io, int, ioport, NULL, 0);
255 module_param_hw_array(irq, int, irq, NULL, 0);
256 module_param_array(rates, int, NULL, 0);
257 module_param_array(ssids, charp, NULL, 0);
258 module_param(auto_wep, int, 0);
259 MODULE_PARM_DESC(auto_wep,
260 		 "If non-zero, the driver will keep looping through the authentication options until an association is made.  "
261 		 "The value of auto_wep is number of the wep keys to check.  "
262 		 "A value of 2 will try using the key at index 0 and index 1.");
263 module_param(aux_bap, int, 0);
264 MODULE_PARM_DESC(aux_bap,
265 		 "If non-zero, the driver will switch into a mode that seems to work better for older cards with some older buses.  "
266 		 "Before switching it checks that the switch is needed.");
267 module_param(maxencrypt, int, 0);
268 MODULE_PARM_DESC(maxencrypt,
269 		 "The maximum speed that the card can do encryption.  "
270 		 "Units are in 512kbs.  "
271 		 "Zero (default) means there is no limit.  "
272 		 "Older cards used to be limited to 2mbs (4).");
273 module_param(adhoc, int, 0);
274 MODULE_PARM_DESC(adhoc, "If non-zero, the card will start in adhoc mode.");
275 module_param(probe, int, 0);
276 MODULE_PARM_DESC(probe, "If zero, the driver won't start the card.");
277 
278 module_param(proc_uid, int, 0);
279 MODULE_PARM_DESC(proc_uid, "The uid that the /proc files will belong to.");
280 module_param(proc_gid, int, 0);
281 MODULE_PARM_DESC(proc_gid, "The gid that the /proc files will belong to.");
282 module_param(airo_perm, int, 0);
283 MODULE_PARM_DESC(airo_perm, "The permission bits of /proc/[driver/]aironet.");
284 module_param(proc_perm, int, 0);
285 MODULE_PARM_DESC(proc_perm, "The permission bits of the files in /proc");
286 
287 /* This is a kind of sloppy hack to get this information to OUT4500 and
288    IN4500.  I would be extremely interested in the situation where this
289    doesn't work though!!! */
290 static int do8bitIO /* = 0 */;
291 
292 /* Return codes */
293 #define SUCCESS 0
294 #define ERROR -1
295 #define NO_PACKET -2
296 
297 /* Commands */
298 #define NOP2		0x0000
299 #define MAC_ENABLE	0x0001
300 #define MAC_DISABLE	0x0002
301 #define CMD_LOSE_SYNC	0x0003 /* Not sure what this does... */
302 #define CMD_SOFTRESET	0x0004
303 #define HOSTSLEEP	0x0005
304 #define CMD_MAGIC_PKT	0x0006
305 #define CMD_SETWAKEMASK	0x0007
306 #define CMD_READCFG	0x0008
307 #define CMD_SETMODE	0x0009
308 #define CMD_ALLOCATETX	0x000a
309 #define CMD_TRANSMIT	0x000b
310 #define CMD_DEALLOCATETX 0x000c
311 #define NOP		0x0010
312 #define CMD_WORKAROUND	0x0011
313 #define CMD_ALLOCATEAUX 0x0020
314 #define CMD_ACCESS	0x0021
315 #define CMD_PCIBAP	0x0022
316 #define CMD_PCIAUX	0x0023
317 #define CMD_ALLOCBUF	0x0028
318 #define CMD_GETTLV	0x0029
319 #define CMD_PUTTLV	0x002a
320 #define CMD_DELTLV	0x002b
321 #define CMD_FINDNEXTTLV	0x002c
322 #define CMD_PSPNODES	0x0030
323 #define CMD_SETCW	0x0031
324 #define CMD_SETPCF	0x0032
325 #define CMD_SETPHYREG	0x003e
326 #define CMD_TXTEST	0x003f
327 #define MAC_ENABLETX	0x0101
328 #define CMD_LISTBSS	0x0103
329 #define CMD_SAVECFG	0x0108
330 #define CMD_ENABLEAUX	0x0111
331 #define CMD_WRITERID	0x0121
332 #define CMD_USEPSPNODES	0x0130
333 #define MAC_ENABLERX	0x0201
334 
335 /* Command errors */
336 #define ERROR_QUALIF 0x00
337 #define ERROR_ILLCMD 0x01
338 #define ERROR_ILLFMT 0x02
339 #define ERROR_INVFID 0x03
340 #define ERROR_INVRID 0x04
341 #define ERROR_LARGE 0x05
342 #define ERROR_NDISABL 0x06
343 #define ERROR_ALLOCBSY 0x07
344 #define ERROR_NORD 0x0B
345 #define ERROR_NOWR 0x0C
346 #define ERROR_INVFIDTX 0x0D
347 #define ERROR_TESTACT 0x0E
348 #define ERROR_TAGNFND 0x12
349 #define ERROR_DECODE 0x20
350 #define ERROR_DESCUNAV 0x21
351 #define ERROR_BADLEN 0x22
352 #define ERROR_MODE 0x80
353 #define ERROR_HOP 0x81
354 #define ERROR_BINTER 0x82
355 #define ERROR_RXMODE 0x83
356 #define ERROR_MACADDR 0x84
357 #define ERROR_RATES 0x85
358 #define ERROR_ORDER 0x86
359 #define ERROR_SCAN 0x87
360 #define ERROR_AUTH 0x88
361 #define ERROR_PSMODE 0x89
362 #define ERROR_RTYPE 0x8A
363 #define ERROR_DIVER 0x8B
364 #define ERROR_SSID 0x8C
365 #define ERROR_APLIST 0x8D
366 #define ERROR_AUTOWAKE 0x8E
367 #define ERROR_LEAP 0x8F
368 
369 /* Registers */
370 #define COMMAND 0x00
371 #define PARAM0 0x02
372 #define PARAM1 0x04
373 #define PARAM2 0x06
374 #define STATUS 0x08
375 #define RESP0 0x0a
376 #define RESP1 0x0c
377 #define RESP2 0x0e
378 #define LINKSTAT 0x10
379 #define SELECT0 0x18
380 #define OFFSET0 0x1c
381 #define RXFID 0x20
382 #define TXALLOCFID 0x22
383 #define TXCOMPLFID 0x24
384 #define DATA0 0x36
385 #define EVSTAT 0x30
386 #define EVINTEN 0x32
387 #define EVACK 0x34
388 #define SWS0 0x28
389 #define SWS1 0x2a
390 #define SWS2 0x2c
391 #define SWS3 0x2e
392 #define AUXPAGE 0x3A
393 #define AUXOFF 0x3C
394 #define AUXDATA 0x3E
395 
396 #define FID_TX 1
397 #define FID_RX 2
398 /* Offset into aux memory for descriptors */
399 #define AUX_OFFSET 0x800
400 /* Size of allocated packets */
401 #define PKTSIZE 1840
402 #define RIDSIZE 2048
403 /* Size of the transmit queue */
404 #define MAXTXQ 64
405 
406 /* BAP selectors */
407 #define BAP0 0 /* Used for receiving packets */
408 #define BAP1 2 /* Used for xmiting packets and working with RIDS */
409 
410 /* Flags */
411 #define COMMAND_BUSY 0x8000
412 
413 #define BAP_BUSY 0x8000
414 #define BAP_ERR 0x4000
415 #define BAP_DONE 0x2000
416 
417 #define PROMISC 0xffff
418 #define NOPROMISC 0x0000
419 
420 #define EV_CMD 0x10
421 #define EV_CLEARCOMMANDBUSY 0x4000
422 #define EV_RX 0x01
423 #define EV_TX 0x02
424 #define EV_TXEXC 0x04
425 #define EV_ALLOC 0x08
426 #define EV_LINK 0x80
427 #define EV_AWAKE 0x100
428 #define EV_TXCPY 0x400
429 #define EV_UNKNOWN 0x800
430 #define EV_MIC 0x1000 /* Message Integrity Check Interrupt */
431 #define EV_AWAKEN 0x2000
432 #define STATUS_INTS (EV_AWAKE|EV_LINK|EV_TXEXC|EV_TX|EV_TXCPY|EV_RX|EV_MIC)
433 
434 #ifdef CHECK_UNKNOWN_INTS
435 #define IGNORE_INTS (EV_CMD | EV_UNKNOWN)
436 #else
437 #define IGNORE_INTS (~STATUS_INTS)
438 #endif
439 
440 /* RID TYPES */
441 #define RID_RW 0x20
442 
443 /* The RIDs */
444 #define RID_CAPABILITIES 0xFF00
445 #define RID_APINFO     0xFF01
446 #define RID_RADIOINFO  0xFF02
447 #define RID_UNKNOWN3   0xFF03
448 #define RID_RSSI       0xFF04
449 #define RID_CONFIG     0xFF10
450 #define RID_SSID       0xFF11
451 #define RID_APLIST     0xFF12
452 #define RID_DRVNAME    0xFF13
453 #define RID_ETHERENCAP 0xFF14
454 #define RID_WEP_TEMP   0xFF15
455 #define RID_WEP_PERM   0xFF16
456 #define RID_MODULATION 0xFF17
457 #define RID_OPTIONS    0xFF18
458 #define RID_ACTUALCONFIG 0xFF20 /*readonly*/
459 #define RID_FACTORYCONFIG 0xFF21
460 #define RID_UNKNOWN22  0xFF22
461 #define RID_LEAPUSERNAME 0xFF23
462 #define RID_LEAPPASSWORD 0xFF24
463 #define RID_STATUS     0xFF50
464 #define RID_BEACON_HST 0xFF51
465 #define RID_BUSY_HST   0xFF52
466 #define RID_RETRIES_HST 0xFF53
467 #define RID_UNKNOWN54  0xFF54
468 #define RID_UNKNOWN55  0xFF55
469 #define RID_UNKNOWN56  0xFF56
470 #define RID_MIC        0xFF57
471 #define RID_STATS16    0xFF60
472 #define RID_STATS16DELTA 0xFF61
473 #define RID_STATS16DELTACLEAR 0xFF62
474 #define RID_STATS      0xFF68
475 #define RID_STATSDELTA 0xFF69
476 #define RID_STATSDELTACLEAR 0xFF6A
477 #define RID_ECHOTEST_RID 0xFF70
478 #define RID_ECHOTEST_RESULTS 0xFF71
479 #define RID_BSSLISTFIRST 0xFF72
480 #define RID_BSSLISTNEXT  0xFF73
481 #define RID_WPA_BSSLISTFIRST 0xFF74
482 #define RID_WPA_BSSLISTNEXT  0xFF75
483 
484 typedef struct {
485 	u16 cmd;
486 	u16 parm0;
487 	u16 parm1;
488 	u16 parm2;
489 } Cmd;
490 
491 typedef struct {
492 	u16 status;
493 	u16 rsp0;
494 	u16 rsp1;
495 	u16 rsp2;
496 } Resp;
497 
498 /*
499  * Rids and endian-ness:  The Rids will always be in cpu endian, since
500  * this all the patches from the big-endian guys end up doing that.
501  * so all rid access should use the read/writeXXXRid routines.
502  */
503 
504 /* This structure came from an email sent to me from an engineer at
505    aironet for inclusion into this driver */
506 typedef struct WepKeyRid WepKeyRid;
507 struct WepKeyRid {
508 	__le16 len;
509 	__le16 kindex;
510 	u8 mac[ETH_ALEN];
511 	__le16 klen;
512 	u8 key[16];
513 } __packed;
514 
515 /* These structures are from the Aironet's PC4500 Developers Manual */
516 typedef struct Ssid Ssid;
517 struct Ssid {
518 	__le16 len;
519 	u8 ssid[32];
520 } __packed;
521 
522 typedef struct SsidRid SsidRid;
523 struct SsidRid {
524 	__le16 len;
525 	Ssid ssids[3];
526 } __packed;
527 
528 typedef struct ModulationRid ModulationRid;
529 struct ModulationRid {
530         __le16 len;
531         __le16 modulation;
532 #define MOD_DEFAULT cpu_to_le16(0)
533 #define MOD_CCK cpu_to_le16(1)
534 #define MOD_MOK cpu_to_le16(2)
535 } __packed;
536 
537 typedef struct ConfigRid ConfigRid;
538 struct ConfigRid {
539 	__le16 len; /* sizeof(ConfigRid) */
540 	__le16 opmode; /* operating mode */
541 #define MODE_STA_IBSS cpu_to_le16(0)
542 #define MODE_STA_ESS cpu_to_le16(1)
543 #define MODE_AP cpu_to_le16(2)
544 #define MODE_AP_RPTR cpu_to_le16(3)
545 #define MODE_CFG_MASK cpu_to_le16(0xff)
546 #define MODE_ETHERNET_HOST cpu_to_le16(0<<8) /* rx payloads converted */
547 #define MODE_LLC_HOST cpu_to_le16(1<<8) /* rx payloads left as is */
548 #define MODE_AIRONET_EXTEND cpu_to_le16(1<<9) /* enable Aironet extensions */
549 #define MODE_AP_INTERFACE cpu_to_le16(1<<10) /* enable ap interface extensions */
550 #define MODE_ANTENNA_ALIGN cpu_to_le16(1<<11) /* enable antenna alignment */
551 #define MODE_ETHER_LLC cpu_to_le16(1<<12) /* enable ethernet LLC */
552 #define MODE_LEAF_NODE cpu_to_le16(1<<13) /* enable leaf node bridge */
553 #define MODE_CF_POLLABLE cpu_to_le16(1<<14) /* enable CF pollable */
554 #define MODE_MIC cpu_to_le16(1<<15) /* enable MIC */
555 	__le16 rmode; /* receive mode */
556 #define RXMODE_BC_MC_ADDR cpu_to_le16(0)
557 #define RXMODE_BC_ADDR cpu_to_le16(1) /* ignore multicasts */
558 #define RXMODE_ADDR cpu_to_le16(2) /* ignore multicast and broadcast */
559 #define RXMODE_RFMON cpu_to_le16(3) /* wireless monitor mode */
560 #define RXMODE_RFMON_ANYBSS cpu_to_le16(4)
561 #define RXMODE_LANMON cpu_to_le16(5) /* lan style monitor -- data packets only */
562 #define RXMODE_MASK cpu_to_le16(255)
563 #define RXMODE_DISABLE_802_3_HEADER cpu_to_le16(1<<8) /* disables 802.3 header on rx */
564 #define RXMODE_FULL_MASK (RXMODE_MASK | RXMODE_DISABLE_802_3_HEADER)
565 #define RXMODE_NORMALIZED_RSSI cpu_to_le16(1<<9) /* return normalized RSSI */
566 	__le16 fragThresh;
567 	__le16 rtsThres;
568 	u8 macAddr[ETH_ALEN];
569 	u8 rates[8];
570 	__le16 shortRetryLimit;
571 	__le16 longRetryLimit;
572 	__le16 txLifetime; /* in kusec */
573 	__le16 rxLifetime; /* in kusec */
574 	__le16 stationary;
575 	__le16 ordering;
576 	__le16 u16deviceType; /* for overriding device type */
577 	__le16 cfpRate;
578 	__le16 cfpDuration;
579 	__le16 _reserved1[3];
580 	/*---------- Scanning/Associating ----------*/
581 	__le16 scanMode;
582 #define SCANMODE_ACTIVE cpu_to_le16(0)
583 #define SCANMODE_PASSIVE cpu_to_le16(1)
584 #define SCANMODE_AIROSCAN cpu_to_le16(2)
585 	__le16 probeDelay; /* in kusec */
586 	__le16 probeEnergyTimeout; /* in kusec */
587         __le16 probeResponseTimeout;
588 	__le16 beaconListenTimeout;
589 	__le16 joinNetTimeout;
590 	__le16 authTimeout;
591 	__le16 authType;
592 #define AUTH_OPEN cpu_to_le16(0x1)
593 #define AUTH_ENCRYPT cpu_to_le16(0x101)
594 #define AUTH_SHAREDKEY cpu_to_le16(0x102)
595 #define AUTH_ALLOW_UNENCRYPTED cpu_to_le16(0x200)
596 	__le16 associationTimeout;
597 	__le16 specifiedApTimeout;
598 	__le16 offlineScanInterval;
599 	__le16 offlineScanDuration;
600 	__le16 linkLossDelay;
601 	__le16 maxBeaconLostTime;
602 	__le16 refreshInterval;
603 #define DISABLE_REFRESH cpu_to_le16(0xFFFF)
604 	__le16 _reserved1a[1];
605 	/*---------- Power save operation ----------*/
606 	__le16 powerSaveMode;
607 #define POWERSAVE_CAM cpu_to_le16(0)
608 #define POWERSAVE_PSP cpu_to_le16(1)
609 #define POWERSAVE_PSPCAM cpu_to_le16(2)
610 	__le16 sleepForDtims;
611 	__le16 listenInterval;
612 	__le16 fastListenInterval;
613 	__le16 listenDecay;
614 	__le16 fastListenDelay;
615 	__le16 _reserved2[2];
616 	/*---------- Ap/Ibss config items ----------*/
617 	__le16 beaconPeriod;
618 	__le16 atimDuration;
619 	__le16 hopPeriod;
620 	__le16 channelSet;
621 	__le16 channel;
622 	__le16 dtimPeriod;
623 	__le16 bridgeDistance;
624 	__le16 radioID;
625 	/*---------- Radio configuration ----------*/
626 	__le16 radioType;
627 #define RADIOTYPE_DEFAULT cpu_to_le16(0)
628 #define RADIOTYPE_802_11 cpu_to_le16(1)
629 #define RADIOTYPE_LEGACY cpu_to_le16(2)
630 	u8 rxDiversity;
631 	u8 txDiversity;
632 	__le16 txPower;
633 #define TXPOWER_DEFAULT 0
634 	__le16 rssiThreshold;
635 #define RSSI_DEFAULT 0
636         __le16 modulation;
637 #define PREAMBLE_AUTO cpu_to_le16(0)
638 #define PREAMBLE_LONG cpu_to_le16(1)
639 #define PREAMBLE_SHORT cpu_to_le16(2)
640 	__le16 preamble;
641 	__le16 homeProduct;
642 	__le16 radioSpecific;
643 	/*---------- Aironet Extensions ----------*/
644 	u8 nodeName[16];
645 	__le16 arlThreshold;
646 	__le16 arlDecay;
647 	__le16 arlDelay;
648 	__le16 _reserved4[1];
649 	/*---------- Aironet Extensions ----------*/
650 	u8 magicAction;
651 #define MAGIC_ACTION_STSCHG 1
652 #define MAGIC_ACTION_RESUME 2
653 #define MAGIC_IGNORE_MCAST (1<<8)
654 #define MAGIC_IGNORE_BCAST (1<<9)
655 #define MAGIC_SWITCH_TO_PSP (0<<10)
656 #define MAGIC_STAY_IN_CAM (1<<10)
657 	u8 magicControl;
658 	__le16 autoWake;
659 } __packed;
660 
661 typedef struct StatusRid StatusRid;
662 struct StatusRid {
663 	__le16 len;
664 	u8 mac[ETH_ALEN];
665 	__le16 mode;
666 	__le16 errorCode;
667 	__le16 sigQuality;
668 	__le16 SSIDlen;
669 	char SSID[32];
670 	char apName[16];
671 	u8 bssid[4][ETH_ALEN];
672 	__le16 beaconPeriod;
673 	__le16 dimPeriod;
674 	__le16 atimDuration;
675 	__le16 hopPeriod;
676 	__le16 channelSet;
677 	__le16 channel;
678 	__le16 hopsToBackbone;
679 	__le16 apTotalLoad;
680 	__le16 generatedLoad;
681 	__le16 accumulatedArl;
682 	__le16 signalQuality;
683 	__le16 currentXmitRate;
684 	__le16 apDevExtensions;
685 	__le16 normalizedSignalStrength;
686 	__le16 shortPreamble;
687 	u8 apIP[4];
688 	u8 noisePercent; /* Noise percent in last second */
689 	u8 noisedBm; /* Noise dBm in last second */
690 	u8 noiseAvePercent; /* Noise percent in last minute */
691 	u8 noiseAvedBm; /* Noise dBm in last minute */
692 	u8 noiseMaxPercent; /* Highest noise percent in last minute */
693 	u8 noiseMaxdBm; /* Highest noise dbm in last minute */
694 	__le16 load;
695 	u8 carrier[4];
696 	__le16 assocStatus;
697 #define STAT_NOPACKETS 0
698 #define STAT_NOCARRIERSET 10
699 #define STAT_GOTCARRIERSET 11
700 #define STAT_WRONGSSID 20
701 #define STAT_BADCHANNEL 25
702 #define STAT_BADBITRATES 30
703 #define STAT_BADPRIVACY 35
704 #define STAT_APFOUND 40
705 #define STAT_APREJECTED 50
706 #define STAT_AUTHENTICATING 60
707 #define STAT_DEAUTHENTICATED 61
708 #define STAT_AUTHTIMEOUT 62
709 #define STAT_ASSOCIATING 70
710 #define STAT_DEASSOCIATED 71
711 #define STAT_ASSOCTIMEOUT 72
712 #define STAT_NOTAIROAP 73
713 #define STAT_ASSOCIATED 80
714 #define STAT_LEAPING 90
715 #define STAT_LEAPFAILED 91
716 #define STAT_LEAPTIMEDOUT 92
717 #define STAT_LEAPCOMPLETE 93
718 } __packed;
719 
720 typedef struct StatsRid StatsRid;
721 struct StatsRid {
722 	__le16 len;
723 	__le16 spacer;
724 	__le32 vals[100];
725 } __packed;
726 
727 typedef struct APListRid APListRid;
728 struct APListRid {
729 	__le16 len;
730 	u8 ap[4][ETH_ALEN];
731 } __packed;
732 
733 typedef struct CapabilityRid CapabilityRid;
734 struct CapabilityRid {
735 	__le16 len;
736 	char oui[3];
737 	char zero;
738 	__le16 prodNum;
739 	char manName[32];
740 	char prodName[16];
741 	char prodVer[8];
742 	char factoryAddr[ETH_ALEN];
743 	char aironetAddr[ETH_ALEN];
744 	__le16 radioType;
745 	__le16 country;
746 	char callid[ETH_ALEN];
747 	char supportedRates[8];
748 	char rxDiversity;
749 	char txDiversity;
750 	__le16 txPowerLevels[8];
751 	__le16 hardVer;
752 	__le16 hardCap;
753 	__le16 tempRange;
754 	__le16 softVer;
755 	__le16 softSubVer;
756 	__le16 interfaceVer;
757 	__le16 softCap;
758 	__le16 bootBlockVer;
759 	__le16 requiredHard;
760 	__le16 extSoftCap;
761 } __packed;
762 
763 /* Only present on firmware >= 5.30.17 */
764 typedef struct BSSListRidExtra BSSListRidExtra;
765 struct BSSListRidExtra {
766   __le16 unknown[4];
767   u8 fixed[12]; /* WLAN management frame */
768   u8 iep[624];
769 } __packed;
770 
771 typedef struct BSSListRid BSSListRid;
772 struct BSSListRid {
773   __le16 len;
774   __le16 index; /* First is 0 and 0xffff means end of list */
775 #define RADIO_FH 1 /* Frequency hopping radio type */
776 #define RADIO_DS 2 /* Direct sequence radio type */
777 #define RADIO_TMA 4 /* Proprietary radio used in old cards (2500) */
778   __le16 radioType;
779   u8 bssid[ETH_ALEN]; /* Mac address of the BSS */
780   u8 zero;
781   u8 ssidLen;
782   u8 ssid[32];
783   __le16 dBm;
784 #define CAP_ESS cpu_to_le16(1<<0)
785 #define CAP_IBSS cpu_to_le16(1<<1)
786 #define CAP_PRIVACY cpu_to_le16(1<<4)
787 #define CAP_SHORTHDR cpu_to_le16(1<<5)
788   __le16 cap;
789   __le16 beaconInterval;
790   u8 rates[8]; /* Same as rates for config rid */
791   struct { /* For frequency hopping only */
792     __le16 dwell;
793     u8 hopSet;
794     u8 hopPattern;
795     u8 hopIndex;
796     u8 fill;
797   } fh;
798   __le16 dsChannel;
799   __le16 atimWindow;
800 
801   /* Only present on firmware >= 5.30.17 */
802   BSSListRidExtra extra;
803 } __packed;
804 
805 typedef struct {
806   BSSListRid bss;
807   struct list_head list;
808 } BSSListElement;
809 
810 typedef struct tdsRssiEntry tdsRssiEntry;
811 struct tdsRssiEntry {
812   u8 rssipct;
813   u8 rssidBm;
814 } __packed;
815 
816 typedef struct tdsRssiRid tdsRssiRid;
817 struct tdsRssiRid {
818   u16 len;
819   tdsRssiEntry x[256];
820 } __packed;
821 
822 typedef struct MICRid MICRid;
823 struct MICRid {
824 	__le16 len;
825 	__le16 state;
826 	__le16 multicastValid;
827 	u8  multicast[16];
828 	__le16 unicastValid;
829 	u8  unicast[16];
830 } __packed;
831 
832 typedef struct MICBuffer MICBuffer;
833 struct MICBuffer {
834 	__be16 typelen;
835 
836 	union {
837 	    u8 snap[8];
838 	    struct {
839 		u8 dsap;
840 		u8 ssap;
841 		u8 control;
842 		u8 orgcode[3];
843 		u8 fieldtype[2];
844 	    } llc;
845 	} u;
846 	__be32 mic;
847 	__be32 seq;
848 } __packed;
849 
850 typedef struct {
851 	u8 da[ETH_ALEN];
852 	u8 sa[ETH_ALEN];
853 } etherHead;
854 
855 #define TXCTL_TXOK (1<<1) /* report if tx is ok */
856 #define TXCTL_TXEX (1<<2) /* report if tx fails */
857 #define TXCTL_802_3 (0<<3) /* 802.3 packet */
858 #define TXCTL_802_11 (1<<3) /* 802.11 mac packet */
859 #define TXCTL_ETHERNET (0<<4) /* payload has ethertype */
860 #define TXCTL_LLC (1<<4) /* payload is llc */
861 #define TXCTL_RELEASE (0<<5) /* release after completion */
862 #define TXCTL_NORELEASE (1<<5) /* on completion returns to host */
863 
864 #define BUSY_FID 0x10000
865 
866 #ifdef CISCO_EXT
867 #define AIROMAGIC	0xa55a
868 /* Warning : SIOCDEVPRIVATE may disapear during 2.5.X - Jean II */
869 #ifdef SIOCIWFIRSTPRIV
870 #ifdef SIOCDEVPRIVATE
871 #define AIROOLDIOCTL	SIOCDEVPRIVATE
872 #define AIROOLDIDIFC 	AIROOLDIOCTL + 1
873 #endif /* SIOCDEVPRIVATE */
874 #else /* SIOCIWFIRSTPRIV */
875 #define SIOCIWFIRSTPRIV SIOCDEVPRIVATE
876 #endif /* SIOCIWFIRSTPRIV */
877 /* This may be wrong. When using the new SIOCIWFIRSTPRIV range, we probably
878  * should use only "GET" ioctls (last bit set to 1). "SET" ioctls are root
879  * only and don't return the modified struct ifreq to the application which
880  * is usually a problem. - Jean II */
881 #define AIROIOCTL	SIOCIWFIRSTPRIV
882 #define AIROIDIFC 	AIROIOCTL + 1
883 
884 /* Ioctl constants to be used in airo_ioctl.command */
885 
886 #define	AIROGCAP  		0	// Capability rid
887 #define AIROGCFG		1       // USED A LOT
888 #define AIROGSLIST		2	// System ID list
889 #define AIROGVLIST		3       // List of specified AP's
890 #define AIROGDRVNAM		4	//  NOTUSED
891 #define AIROGEHTENC		5	// NOTUSED
892 #define AIROGWEPKTMP		6
893 #define AIROGWEPKNV		7
894 #define AIROGSTAT		8
895 #define AIROGSTATSC32		9
896 #define AIROGSTATSD32		10
897 #define AIROGMICRID		11
898 #define AIROGMICSTATS		12
899 #define AIROGFLAGS		13
900 #define AIROGID			14
901 #define AIRORRID		15
902 #define AIRORSWVERSION		17
903 
904 /* Leave gap of 40 commands after AIROGSTATSD32 for future */
905 
906 #define AIROPCAP               	AIROGSTATSD32 + 40
907 #define AIROPVLIST              AIROPCAP      + 1
908 #define AIROPSLIST		AIROPVLIST    + 1
909 #define AIROPCFG		AIROPSLIST    + 1
910 #define AIROPSIDS		AIROPCFG      + 1
911 #define AIROPAPLIST		AIROPSIDS     + 1
912 #define AIROPMACON		AIROPAPLIST   + 1	/* Enable mac  */
913 #define AIROPMACOFF		AIROPMACON    + 1 	/* Disable mac */
914 #define AIROPSTCLR		AIROPMACOFF   + 1
915 #define AIROPWEPKEY		AIROPSTCLR    + 1
916 #define AIROPWEPKEYNV		AIROPWEPKEY   + 1
917 #define AIROPLEAPPWD            AIROPWEPKEYNV + 1
918 #define AIROPLEAPUSR            AIROPLEAPPWD  + 1
919 
920 /* Flash codes */
921 
922 #define AIROFLSHRST	       AIROPWEPKEYNV  + 40
923 #define AIROFLSHGCHR           AIROFLSHRST    + 1
924 #define AIROFLSHSTFL           AIROFLSHGCHR   + 1
925 #define AIROFLSHPCHR           AIROFLSHSTFL   + 1
926 #define AIROFLPUTBUF           AIROFLSHPCHR   + 1
927 #define AIRORESTART            AIROFLPUTBUF   + 1
928 
929 #define FLASHSIZE	32768
930 #define AUXMEMSIZE	(256 * 1024)
931 
932 typedef struct aironet_ioctl {
933 	unsigned short command;		// What to do
934 	unsigned short len;		// Len of data
935 	unsigned short ridnum;		// rid number
936 	unsigned char __user *data;	// d-data
937 } aironet_ioctl;
938 
939 static const char swversion[] = "2.1";
940 #endif /* CISCO_EXT */
941 
942 #define NUM_MODULES       2
943 #define MIC_MSGLEN_MAX    2400
944 #define EMMH32_MSGLEN_MAX MIC_MSGLEN_MAX
945 #define AIRO_DEF_MTU      2312
946 
947 typedef struct {
948 	u32   size;            // size
949 	u8    enabled;         // MIC enabled or not
950 	u32   rxSuccess;       // successful packets received
951 	u32   rxIncorrectMIC;  // pkts dropped due to incorrect MIC comparison
952 	u32   rxNotMICed;      // pkts dropped due to not being MIC'd
953 	u32   rxMICPlummed;    // pkts dropped due to not having a MIC plummed
954 	u32   rxWrongSequence; // pkts dropped due to sequence number violation
955 	u32   reserve[32];
956 } mic_statistics;
957 
958 typedef struct {
959 	__be32 coeff[((EMMH32_MSGLEN_MAX)+3)>>2];
960 	u64 accum;	// accumulated mic, reduced to u32 in final()
961 	int position;	// current position (byte offset) in message
962 	union {
963 		u8  d8[4];
964 		__be32 d32;
965 	} part;	// saves partial message word across update() calls
966 } emmh32_context;
967 
968 typedef struct {
969 	emmh32_context seed;	    // Context - the seed
970 	u32		 rx;	    // Received sequence number
971 	u32		 tx;	    // Tx sequence number
972 	u32		 window;    // Start of window
973 	u8		 valid;	    // Flag to say if context is valid or not
974 	u8		 key[16];
975 } miccntx;
976 
977 typedef struct {
978 	miccntx mCtx;		// Multicast context
979 	miccntx uCtx;		// Unicast context
980 } mic_module;
981 
982 typedef struct {
983 	unsigned int  rid: 16;
984 	unsigned int  len: 15;
985 	unsigned int  valid: 1;
986 	dma_addr_t host_addr;
987 } Rid;
988 
989 typedef struct {
990 	unsigned int  offset: 15;
991 	unsigned int  eoc: 1;
992 	unsigned int  len: 15;
993 	unsigned int  valid: 1;
994 	dma_addr_t host_addr;
995 } TxFid;
996 
997 struct rx_hdr {
998 	__le16 status, len;
999 	u8 rssi[2];
1000 	u8 rate;
1001 	u8 freq;
1002 	__le16 tmp[4];
1003 } __packed;
1004 
1005 typedef struct {
1006 	unsigned int  ctl: 15;
1007 	unsigned int  rdy: 1;
1008 	unsigned int  len: 15;
1009 	unsigned int  valid: 1;
1010 	dma_addr_t host_addr;
1011 } RxFid;
1012 
1013 /*
1014  * Host receive descriptor
1015  */
1016 typedef struct {
1017 	unsigned char __iomem *card_ram_off; /* offset into card memory of the
1018 						desc */
1019 	RxFid         rx_desc;		     /* card receive descriptor */
1020 	char          *virtual_host_addr;    /* virtual address of host receive
1021 					        buffer */
1022 	int           pending;
1023 } HostRxDesc;
1024 
1025 /*
1026  * Host transmit descriptor
1027  */
1028 typedef struct {
1029 	unsigned char __iomem *card_ram_off;	     /* offset into card memory of the
1030 						desc */
1031 	TxFid         tx_desc;		     /* card transmit descriptor */
1032 	char          *virtual_host_addr;    /* virtual address of host receive
1033 					        buffer */
1034 	int           pending;
1035 } HostTxDesc;
1036 
1037 /*
1038  * Host RID descriptor
1039  */
1040 typedef struct {
1041 	unsigned char __iomem *card_ram_off;      /* offset into card memory of the
1042 					     descriptor */
1043 	Rid           rid_desc;		  /* card RID descriptor */
1044 	char          *virtual_host_addr; /* virtual address of host receive
1045 					     buffer */
1046 } HostRidDesc;
1047 
1048 typedef struct {
1049 	u16 sw0;
1050 	u16 sw1;
1051 	u16 status;
1052 	u16 len;
1053 #define HOST_SET (1 << 0)
1054 #define HOST_INT_TX (1 << 1) /* Interrupt on successful TX */
1055 #define HOST_INT_TXERR (1 << 2) /* Interrupt on unseccessful TX */
1056 #define HOST_LCC_PAYLOAD (1 << 4) /* LLC payload, 0 = Ethertype */
1057 #define HOST_DONT_RLSE (1 << 5) /* Don't release buffer when done */
1058 #define HOST_DONT_RETRY (1 << 6) /* Don't retry trasmit */
1059 #define HOST_CLR_AID (1 << 7) /* clear AID failure */
1060 #define HOST_RTS (1 << 9) /* Force RTS use */
1061 #define HOST_SHORT (1 << 10) /* Do short preamble */
1062 	u16 ctl;
1063 	u16 aid;
1064 	u16 retries;
1065 	u16 fill;
1066 } TxCtlHdr;
1067 
1068 typedef struct {
1069         u16 ctl;
1070         u16 duration;
1071         char addr1[6];
1072         char addr2[6];
1073         char addr3[6];
1074         u16 seq;
1075         char addr4[6];
1076 } WifiHdr;
1077 
1078 
1079 typedef struct {
1080 	TxCtlHdr ctlhdr;
1081 	u16 fill1;
1082 	u16 fill2;
1083 	WifiHdr wifihdr;
1084 	u16 gaplen;
1085 	u16 status;
1086 } WifiCtlHdr;
1087 
1088 static WifiCtlHdr wifictlhdr8023 = {
1089 	.ctlhdr = {
1090 		.ctl	= HOST_DONT_RLSE,
1091 	}
1092 };
1093 
1094 // A few details needed for WEP (Wireless Equivalent Privacy)
1095 #define MAX_KEY_SIZE 13			// 128 (?) bits
1096 #define MIN_KEY_SIZE  5			// 40 bits RC4 - WEP
1097 typedef struct wep_key_t {
1098 	u16	len;
1099 	u8	key[16];	/* 40-bit and 104-bit keys */
1100 } wep_key_t;
1101 
1102 /* List of Wireless Handlers (new API) */
1103 static const struct iw_handler_def	airo_handler_def;
1104 
1105 static const char version[] = "airo.c 0.6 (Ben Reed & Javier Achirica)";
1106 
1107 struct airo_info;
1108 
1109 static int get_dec_u16(char *buffer, int *start, int limit);
1110 static void OUT4500(struct airo_info *, u16 reg, u16 value);
1111 static unsigned short IN4500(struct airo_info *, u16 reg);
1112 static u16 setup_card(struct airo_info*, struct net_device *dev, int lock);
1113 static int enable_MAC(struct airo_info *ai, int lock);
1114 static void disable_MAC(struct airo_info *ai, int lock);
1115 static void enable_interrupts(struct airo_info*);
1116 static void disable_interrupts(struct airo_info*);
1117 static u16 issuecommand(struct airo_info*, Cmd *pCmd, Resp *pRsp,
1118 			bool may_sleep);
1119 static int bap_setup(struct airo_info*, u16 rid, u16 offset, int whichbap);
1120 static int aux_bap_read(struct airo_info*, __le16 *pu16Dst, int bytelen,
1121 			int whichbap);
1122 static int fast_bap_read(struct airo_info*, __le16 *pu16Dst, int bytelen,
1123 			 int whichbap);
1124 static int bap_write(struct airo_info*, const __le16 *pu16Src, int bytelen,
1125 		     int whichbap);
1126 static int PC4500_accessrid(struct airo_info*, u16 rid, u16 accmd);
1127 static int PC4500_readrid(struct airo_info*, u16 rid, void *pBuf, int len, int lock);
1128 static int PC4500_writerid(struct airo_info*, u16 rid, const void
1129 			   *pBuf, int len, int lock);
1130 static int do_writerid(struct airo_info*, u16 rid, const void *rid_data,
1131 			int len, int dummy);
1132 static u16 transmit_allocate(struct airo_info*, int lenPayload, int raw);
1133 static int transmit_802_3_packet(struct airo_info*, int len, char *pPacket,
1134 				 bool may_sleep);
1135 static int transmit_802_11_packet(struct airo_info*, int len, char *pPacket,
1136 				  bool may_sleep);
1137 
1138 static int mpi_send_packet(struct net_device *dev);
1139 static void mpi_unmap_card(struct pci_dev *pci);
1140 static void mpi_receive_802_3(struct airo_info *ai);
1141 static void mpi_receive_802_11(struct airo_info *ai);
1142 static int waitbusy(struct airo_info *ai);
1143 
1144 static irqreturn_t airo_interrupt(int irq, void* dev_id);
1145 static int airo_thread(void *data);
1146 static void timer_func(struct net_device *dev);
1147 static int airo_siocdevprivate(struct net_device *dev, struct ifreq *rq, void __user *, int cmd);
1148 static struct iw_statistics *airo_get_wireless_stats(struct net_device *dev);
1149 #ifdef CISCO_EXT
1150 static int readrids(struct net_device *dev, aironet_ioctl *comp);
1151 static int writerids(struct net_device *dev, aironet_ioctl *comp);
1152 static int flashcard(struct net_device *dev, aironet_ioctl *comp);
1153 #endif /* CISCO_EXT */
1154 static void micinit(struct airo_info *ai);
1155 static int micsetup(struct airo_info *ai);
1156 static int encapsulate(struct airo_info *ai, etherHead *pPacket, MICBuffer *buffer, int len);
1157 static int decapsulate(struct airo_info *ai, MICBuffer *mic, etherHead *pPacket, u16 payLen);
1158 
1159 static u8 airo_rssi_to_dbm(tdsRssiEntry *rssi_rid, u8 rssi);
1160 static u8 airo_dbm_to_pct(tdsRssiEntry *rssi_rid, u8 dbm);
1161 
1162 static void airo_networks_free(struct airo_info *ai);
1163 
1164 struct airo_info {
1165 	struct net_device             *dev;
1166 	struct list_head              dev_list;
1167 	/* Note, we can have MAX_FIDS outstanding.  FIDs are 16-bits, so we
1168 	   use the high bit to mark whether it is in use. */
1169 #define MAX_FIDS 6
1170 #define MPI_MAX_FIDS 1
1171 	u32                           fids[MAX_FIDS];
1172 	ConfigRid config;
1173 	char keyindex; // Used with auto wep
1174 	char defindex; // Used with auto wep
1175 	struct proc_dir_entry *proc_entry;
1176         spinlock_t aux_lock;
1177 #define FLAG_RADIO_OFF	0	/* User disabling of MAC */
1178 #define FLAG_RADIO_DOWN	1	/* ifup/ifdown disabling of MAC */
1179 #define FLAG_RADIO_MASK 0x03
1180 #define FLAG_ENABLED	2
1181 #define FLAG_ADHOC	3	/* Needed by MIC */
1182 #define FLAG_MIC_CAPABLE 4
1183 #define FLAG_UPDATE_MULTI 5
1184 #define FLAG_UPDATE_UNI 6
1185 #define FLAG_802_11	7
1186 #define FLAG_PROMISC	8	/* IFF_PROMISC 0x100 - include/linux/if.h */
1187 #define FLAG_PENDING_XMIT 9
1188 #define FLAG_PENDING_XMIT11 10
1189 #define FLAG_MPI	11
1190 #define FLAG_REGISTERED	12
1191 #define FLAG_COMMIT	13
1192 #define FLAG_RESET	14
1193 #define FLAG_FLASHING	15
1194 #define FLAG_WPA_CAPABLE	16
1195 	unsigned long flags;
1196 #define JOB_DIE	0
1197 #define JOB_XMIT	1
1198 #define JOB_XMIT11	2
1199 #define JOB_STATS	3
1200 #define JOB_PROMISC	4
1201 #define JOB_MIC	5
1202 #define JOB_EVENT	6
1203 #define JOB_AUTOWEP	7
1204 #define JOB_SCAN_RESULTS  9
1205 	unsigned long jobs;
1206 	int (*bap_read)(struct airo_info*, __le16 *pu16Dst, int bytelen,
1207 			int whichbap);
1208 	unsigned short *flash;
1209 	tdsRssiEntry *rssi;
1210 	struct task_struct *list_bss_task;
1211 	struct task_struct *airo_thread_task;
1212 	struct semaphore sem;
1213 	wait_queue_head_t thr_wait;
1214 	unsigned long expires;
1215 	struct {
1216 		struct sk_buff *skb;
1217 		int fid;
1218 	} xmit, xmit11;
1219 	struct net_device *wifidev;
1220 	struct iw_statistics	wstats;		// wireless stats
1221 	unsigned long		scan_timeout;	/* Time scan should be read */
1222 	struct iw_spy_data	spy_data;
1223 	struct iw_public_data	wireless_data;
1224 	/* MIC stuff */
1225 	struct crypto_sync_skcipher	*tfm;
1226 	mic_module		mod[2];
1227 	mic_statistics		micstats;
1228 	HostRxDesc rxfids[MPI_MAX_FIDS]; // rx/tx/config MPI350 descriptors
1229 	HostTxDesc txfids[MPI_MAX_FIDS];
1230 	HostRidDesc config_desc;
1231 	unsigned long ridbus; // phys addr of config_desc
1232 	struct sk_buff_head txq;// tx queue used by mpi350 code
1233 	struct pci_dev          *pci;
1234 	unsigned char		__iomem *pcimem;
1235 	unsigned char		__iomem *pciaux;
1236 	unsigned char		*shared;
1237 	dma_addr_t		shared_dma;
1238 	pm_message_t		power;
1239 	SsidRid			*SSID;
1240 	APListRid		APList;
1241 #define	PCI_SHARED_LEN		2*MPI_MAX_FIDS*PKTSIZE+RIDSIZE
1242 	char			proc_name[IFNAMSIZ];
1243 
1244 	int			wep_capable;
1245 	int			max_wep_idx;
1246 	int			last_auth;
1247 
1248 	/* WPA-related stuff */
1249 	unsigned int bssListFirst;
1250 	unsigned int bssListNext;
1251 	unsigned int bssListRidLen;
1252 
1253 	struct list_head network_list;
1254 	struct list_head network_free_list;
1255 	BSSListElement *networks;
1256 };
1257 
bap_read(struct airo_info * ai,__le16 * pu16Dst,int bytelen,int whichbap)1258 static inline int bap_read(struct airo_info *ai, __le16 *pu16Dst, int bytelen,
1259 			   int whichbap)
1260 {
1261 	return ai->bap_read(ai, pu16Dst, bytelen, whichbap);
1262 }
1263 
1264 static int setup_proc_entry(struct net_device *dev,
1265 			     struct airo_info *apriv);
1266 static int takedown_proc_entry(struct net_device *dev,
1267 				struct airo_info *apriv);
1268 
1269 static int cmdreset(struct airo_info *ai);
1270 static int setflashmode(struct airo_info *ai);
1271 static int flashgchar(struct airo_info *ai, int matchbyte, int dwelltime);
1272 static int flashputbuf(struct airo_info *ai);
1273 static int flashrestart(struct airo_info *ai, struct net_device *dev);
1274 
1275 #define airo_print(type, name, fmt, args...) \
1276 	printk(type DRV_NAME "(%s): " fmt "\n", name, ##args)
1277 
1278 #define airo_print_info(name, fmt, args...) \
1279 	airo_print(KERN_INFO, name, fmt, ##args)
1280 
1281 #define airo_print_dbg(name, fmt, args...) \
1282 	airo_print(KERN_DEBUG, name, fmt, ##args)
1283 
1284 #define airo_print_warn(name, fmt, args...) \
1285 	airo_print(KERN_WARNING, name, fmt, ##args)
1286 
1287 #define airo_print_err(name, fmt, args...) \
1288 	airo_print(KERN_ERR, name, fmt, ##args)
1289 
1290 #define AIRO_FLASH(dev) (((struct airo_info *)dev->ml_priv)->flash)
1291 
1292 /***********************************************************************
1293  *                              MIC ROUTINES                           *
1294  ***********************************************************************
1295  */
1296 
1297 static int RxSeqValid(struct airo_info *ai, miccntx *context, int mcast, u32 micSeq);
1298 static void MoveWindow(miccntx *context, u32 micSeq);
1299 static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen,
1300 			   struct crypto_sync_skcipher *tfm);
1301 static void emmh32_init(emmh32_context *context);
1302 static void emmh32_update(emmh32_context *context, u8 *pOctets, int len);
1303 static void emmh32_final(emmh32_context *context, u8 digest[4]);
1304 static int flashpchar(struct airo_info *ai, int byte, int dwelltime);
1305 
age_mic_context(miccntx * cur,miccntx * old,u8 * key,int key_len,struct crypto_sync_skcipher * tfm)1306 static void age_mic_context(miccntx *cur, miccntx *old, u8 *key, int key_len,
1307 			    struct crypto_sync_skcipher *tfm)
1308 {
1309 	/* If the current MIC context is valid and its key is the same as
1310 	 * the MIC register, there's nothing to do.
1311 	 */
1312 	if (cur->valid && (memcmp(cur->key, key, key_len) == 0))
1313 		return;
1314 
1315 	/* Age current mic Context */
1316 	memcpy(old, cur, sizeof(*cur));
1317 
1318 	/* Initialize new context */
1319 	memcpy(cur->key, key, key_len);
1320 	cur->window  = 33; /* Window always points to the middle */
1321 	cur->rx      = 0;  /* Rx Sequence numbers */
1322 	cur->tx      = 0;  /* Tx sequence numbers */
1323 	cur->valid   = 1;  /* Key is now valid */
1324 
1325 	/* Give key to mic seed */
1326 	emmh32_setseed(&cur->seed, key, key_len, tfm);
1327 }
1328 
1329 /* micinit - Initialize mic seed */
1330 
micinit(struct airo_info * ai)1331 static void micinit(struct airo_info *ai)
1332 {
1333 	MICRid mic_rid;
1334 
1335 	clear_bit(JOB_MIC, &ai->jobs);
1336 	PC4500_readrid(ai, RID_MIC, &mic_rid, sizeof(mic_rid), 0);
1337 	up(&ai->sem);
1338 
1339 	ai->micstats.enabled = (le16_to_cpu(mic_rid.state) & 0x00FF) ? 1 : 0;
1340 	if (!ai->micstats.enabled) {
1341 		/* So next time we have a valid key and mic is enabled, we will
1342 		 * update the sequence number if the key is the same as before.
1343 		 */
1344 		ai->mod[0].uCtx.valid = 0;
1345 		ai->mod[0].mCtx.valid = 0;
1346 		return;
1347 	}
1348 
1349 	if (mic_rid.multicastValid) {
1350 		age_mic_context(&ai->mod[0].mCtx, &ai->mod[1].mCtx,
1351 		                mic_rid.multicast, sizeof(mic_rid.multicast),
1352 		                ai->tfm);
1353 	}
1354 
1355 	if (mic_rid.unicastValid) {
1356 		age_mic_context(&ai->mod[0].uCtx, &ai->mod[1].uCtx,
1357 				mic_rid.unicast, sizeof(mic_rid.unicast),
1358 				ai->tfm);
1359 	}
1360 }
1361 
1362 /* micsetup - Get ready for business */
1363 
micsetup(struct airo_info * ai)1364 static int micsetup(struct airo_info *ai)
1365 {
1366 	int i;
1367 
1368 	if (ai->tfm == NULL)
1369 		ai->tfm = crypto_alloc_sync_skcipher("ctr(aes)", 0, 0);
1370 
1371         if (IS_ERR(ai->tfm)) {
1372                 airo_print_err(ai->dev->name, "failed to load transform for AES");
1373                 ai->tfm = NULL;
1374                 return ERROR;
1375         }
1376 
1377 	for (i = 0; i < NUM_MODULES; i++) {
1378 		memset(&ai->mod[i].mCtx, 0, sizeof(miccntx));
1379 		memset(&ai->mod[i].uCtx, 0, sizeof(miccntx));
1380 	}
1381 	return SUCCESS;
1382 }
1383 
1384 static const u8 micsnap[] = {0xAA, 0xAA, 0x03, 0x00, 0x40, 0x96, 0x00, 0x02};
1385 
1386 /*===========================================================================
1387  * Description: Mic a packet
1388  *
1389  *      Inputs: etherHead * pointer to an 802.3 frame
1390  *
1391  *     Returns: BOOLEAN if successful, otherwise false.
1392  *             PacketTxLen will be updated with the mic'd packets size.
1393  *
1394  *    Caveats: It is assumed that the frame buffer will already
1395  *             be big enough to hold the largets mic message possible.
1396  *            (No memory allocation is done here).
1397  *
1398  *    Author: sbraneky (10/15/01)
1399  *    Merciless hacks by rwilcher (1/14/02)
1400  */
1401 
encapsulate(struct airo_info * ai,etherHead * frame,MICBuffer * mic,int payLen)1402 static int encapsulate(struct airo_info *ai, etherHead *frame, MICBuffer *mic, int payLen)
1403 {
1404 	miccntx   *context;
1405 
1406 	// Determine correct context
1407 	// If not adhoc, always use unicast key
1408 
1409 	if (test_bit(FLAG_ADHOC, &ai->flags) && (frame->da[0] & 0x1))
1410 		context = &ai->mod[0].mCtx;
1411 	else
1412 		context = &ai->mod[0].uCtx;
1413 
1414 	if (!context->valid)
1415 		return ERROR;
1416 
1417 	mic->typelen = htons(payLen + 16); //Length of Mic'd packet
1418 
1419 	memcpy(&mic->u.snap, micsnap, sizeof(micsnap)); // Add Snap
1420 
1421 	// Add Tx sequence
1422 	mic->seq = htonl(context->tx);
1423 	context->tx += 2;
1424 
1425 	emmh32_init(&context->seed); // Mic the packet
1426 	emmh32_update(&context->seed, frame->da, ETH_ALEN * 2); // DA, SA
1427 	emmh32_update(&context->seed, (u8*)&mic->typelen, 10); // Type/Length and Snap
1428 	emmh32_update(&context->seed, (u8*)&mic->seq, sizeof(mic->seq)); //SEQ
1429 	emmh32_update(&context->seed, (u8*)(frame + 1), payLen); //payload
1430 	emmh32_final(&context->seed, (u8*)&mic->mic);
1431 
1432 	/*    New Type/length ?????????? */
1433 	mic->typelen = 0; //Let NIC know it could be an oversized packet
1434 	return SUCCESS;
1435 }
1436 
1437 typedef enum {
1438     NONE,
1439     NOMIC,
1440     NOMICPLUMMED,
1441     SEQUENCE,
1442     INCORRECTMIC,
1443 } mic_error;
1444 
1445 /*===========================================================================
1446  *  Description: Decapsulates a MIC'd packet and returns the 802.3 packet
1447  *               (removes the MIC stuff) if packet is a valid packet.
1448  *
1449  *       Inputs: etherHead  pointer to the 802.3 packet
1450  *
1451  *      Returns: BOOLEAN - TRUE if packet should be dropped otherwise FALSE
1452  *
1453  *      Author: sbraneky (10/15/01)
1454  *    Merciless hacks by rwilcher (1/14/02)
1455  *---------------------------------------------------------------------------
1456  */
1457 
decapsulate(struct airo_info * ai,MICBuffer * mic,etherHead * eth,u16 payLen)1458 static int decapsulate(struct airo_info *ai, MICBuffer *mic, etherHead *eth, u16 payLen)
1459 {
1460 	int      i;
1461 	u32      micSEQ;
1462 	miccntx  *context;
1463 	u8       digest[4];
1464 	mic_error micError = NONE;
1465 
1466 	// Check if the packet is a Mic'd packet
1467 
1468 	if (!ai->micstats.enabled) {
1469 		//No Mic set or Mic OFF but we received a MIC'd packet.
1470 		if (memcmp ((u8*)eth + 14, micsnap, sizeof(micsnap)) == 0) {
1471 			ai->micstats.rxMICPlummed++;
1472 			return ERROR;
1473 		}
1474 		return SUCCESS;
1475 	}
1476 
1477 	if (ntohs(mic->typelen) == 0x888E)
1478 		return SUCCESS;
1479 
1480 	if (memcmp (mic->u.snap, micsnap, sizeof(micsnap)) != 0) {
1481 	    // Mic enabled but packet isn't Mic'd
1482 		ai->micstats.rxMICPlummed++;
1483 	    	return ERROR;
1484 	}
1485 
1486 	micSEQ = ntohl(mic->seq);            //store SEQ as CPU order
1487 
1488 	//At this point we a have a mic'd packet and mic is enabled
1489 	//Now do the mic error checking.
1490 
1491 	//Receive seq must be odd
1492 	if ((micSEQ & 1) == 0) {
1493 		ai->micstats.rxWrongSequence++;
1494 		return ERROR;
1495 	}
1496 
1497 	for (i = 0; i < NUM_MODULES; i++) {
1498 		int mcast = eth->da[0] & 1;
1499 		//Determine proper context
1500 		context = mcast ? &ai->mod[i].mCtx : &ai->mod[i].uCtx;
1501 
1502 		//Make sure context is valid
1503 		if (!context->valid) {
1504 			if (i == 0)
1505 				micError = NOMICPLUMMED;
1506 			continue;
1507 		}
1508 		//DeMic it
1509 
1510 		if (!mic->typelen)
1511 			mic->typelen = htons(payLen + sizeof(MICBuffer) - 2);
1512 
1513 		emmh32_init(&context->seed);
1514 		emmh32_update(&context->seed, eth->da, ETH_ALEN*2);
1515 		emmh32_update(&context->seed, (u8 *)&mic->typelen, sizeof(mic->typelen)+sizeof(mic->u.snap));
1516 		emmh32_update(&context->seed, (u8 *)&mic->seq, sizeof(mic->seq));
1517 		emmh32_update(&context->seed, (u8 *)(eth + 1), payLen);
1518 		//Calculate MIC
1519 		emmh32_final(&context->seed, digest);
1520 
1521 		if (memcmp(digest, &mic->mic, 4)) { //Make sure the mics match
1522 		  //Invalid Mic
1523 			if (i == 0)
1524 				micError = INCORRECTMIC;
1525 			continue;
1526 		}
1527 
1528 		//Check Sequence number if mics pass
1529 		if (RxSeqValid(ai, context, mcast, micSEQ) == SUCCESS) {
1530 			ai->micstats.rxSuccess++;
1531 			return SUCCESS;
1532 		}
1533 		if (i == 0)
1534 			micError = SEQUENCE;
1535 	}
1536 
1537 	// Update statistics
1538 	switch (micError) {
1539 		case NOMICPLUMMED: ai->micstats.rxMICPlummed++;   break;
1540 		case SEQUENCE:    ai->micstats.rxWrongSequence++; break;
1541 		case INCORRECTMIC: ai->micstats.rxIncorrectMIC++; break;
1542 		case NONE:  break;
1543 		case NOMIC: break;
1544 	}
1545 	return ERROR;
1546 }
1547 
1548 /*===========================================================================
1549  * Description:  Checks the Rx Seq number to make sure it is valid
1550  *               and hasn't already been received
1551  *
1552  *     Inputs: miccntx - mic context to check seq against
1553  *             micSeq  - the Mic seq number
1554  *
1555  *    Returns: TRUE if valid otherwise FALSE.
1556  *
1557  *    Author: sbraneky (10/15/01)
1558  *    Merciless hacks by rwilcher (1/14/02)
1559  *---------------------------------------------------------------------------
1560  */
1561 
RxSeqValid(struct airo_info * ai,miccntx * context,int mcast,u32 micSeq)1562 static int RxSeqValid(struct airo_info *ai, miccntx *context, int mcast, u32 micSeq)
1563 {
1564 	u32 seq, index;
1565 
1566 	//Allow for the ap being rebooted - if it is then use the next
1567 	//sequence number of the current sequence number - might go backwards
1568 
1569 	if (mcast) {
1570 		if (test_bit(FLAG_UPDATE_MULTI, &ai->flags)) {
1571 			clear_bit (FLAG_UPDATE_MULTI, &ai->flags);
1572 			context->window = (micSeq > 33) ? micSeq : 33;
1573 			context->rx     = 0;        // Reset rx
1574 		}
1575 	} else if (test_bit(FLAG_UPDATE_UNI, &ai->flags)) {
1576 		clear_bit (FLAG_UPDATE_UNI, &ai->flags);
1577 		context->window = (micSeq > 33) ? micSeq : 33; // Move window
1578 		context->rx     = 0;        // Reset rx
1579 	}
1580 
1581 	//Make sequence number relative to START of window
1582 	seq = micSeq - (context->window - 33);
1583 
1584 	//Too old of a SEQ number to check.
1585 	if ((s32)seq < 0)
1586 		return ERROR;
1587 
1588 	if (seq > 64) {
1589 		//Window is infinite forward
1590 		MoveWindow(context, micSeq);
1591 		return SUCCESS;
1592 	}
1593 
1594 	// We are in the window. Now check the context rx bit to see if it was already sent
1595 	seq >>= 1;         //divide by 2 because we only have odd numbers
1596 	index = 1 << seq;  //Get an index number
1597 
1598 	if (!(context->rx & index)) {
1599 		//micSEQ falls inside the window.
1600 		//Add seqence number to the list of received numbers.
1601 		context->rx |= index;
1602 
1603 		MoveWindow(context, micSeq);
1604 
1605 		return SUCCESS;
1606 	}
1607 	return ERROR;
1608 }
1609 
MoveWindow(miccntx * context,u32 micSeq)1610 static void MoveWindow(miccntx *context, u32 micSeq)
1611 {
1612 	u32 shift;
1613 
1614 	//Move window if seq greater than the middle of the window
1615 	if (micSeq > context->window) {
1616 		shift = (micSeq - context->window) >> 1;
1617 
1618 		    //Shift out old
1619 		if (shift < 32)
1620 			context->rx >>= shift;
1621 		else
1622 			context->rx = 0;
1623 
1624 		context->window = micSeq;      //Move window
1625 	}
1626 }
1627 
1628 /*==============================================*/
1629 /*========== EMMH ROUTINES  ====================*/
1630 /*==============================================*/
1631 
1632 /* mic accumulate */
1633 #define MIC_ACCUM(val)	\
1634 	context->accum += (u64)(val) * be32_to_cpu(context->coeff[coeff_position++]);
1635 
1636 /* expand the key to fill the MMH coefficient array */
emmh32_setseed(emmh32_context * context,u8 * pkey,int keylen,struct crypto_sync_skcipher * tfm)1637 static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen,
1638 			   struct crypto_sync_skcipher *tfm)
1639 {
1640   /* take the keying material, expand if necessary, truncate at 16-bytes */
1641   /* run through AES counter mode to generate context->coeff[] */
1642 
1643 	SYNC_SKCIPHER_REQUEST_ON_STACK(req, tfm);
1644 	struct scatterlist sg;
1645 	u8 iv[AES_BLOCK_SIZE] = {};
1646 	int ret;
1647 
1648 	crypto_sync_skcipher_setkey(tfm, pkey, 16);
1649 
1650 	memset(context->coeff, 0, sizeof(context->coeff));
1651 	sg_init_one(&sg, context->coeff, sizeof(context->coeff));
1652 
1653 	skcipher_request_set_sync_tfm(req, tfm);
1654 	skcipher_request_set_callback(req, 0, NULL, NULL);
1655 	skcipher_request_set_crypt(req, &sg, &sg, sizeof(context->coeff), iv);
1656 
1657 	ret = crypto_skcipher_encrypt(req);
1658 	WARN_ON_ONCE(ret);
1659 }
1660 
1661 /* prepare for calculation of a new mic */
emmh32_init(emmh32_context * context)1662 static void emmh32_init(emmh32_context *context)
1663 {
1664 	/* prepare for new mic calculation */
1665 	context->accum = 0;
1666 	context->position = 0;
1667 }
1668 
1669 /* add some bytes to the mic calculation */
emmh32_update(emmh32_context * context,u8 * pOctets,int len)1670 static void emmh32_update(emmh32_context *context, u8 *pOctets, int len)
1671 {
1672 	int	coeff_position, byte_position;
1673 
1674 	if (len == 0) return;
1675 
1676 	coeff_position = context->position >> 2;
1677 
1678 	/* deal with partial 32-bit word left over from last update */
1679 	byte_position = context->position & 3;
1680 	if (byte_position) {
1681 		/* have a partial word in part to deal with */
1682 		do {
1683 			if (len == 0) return;
1684 			context->part.d8[byte_position++] = *pOctets++;
1685 			context->position++;
1686 			len--;
1687 		} while (byte_position < 4);
1688 		MIC_ACCUM(ntohl(context->part.d32));
1689 	}
1690 
1691 	/* deal with full 32-bit words */
1692 	while (len >= 4) {
1693 		MIC_ACCUM(ntohl(*(__be32 *)pOctets));
1694 		context->position += 4;
1695 		pOctets += 4;
1696 		len -= 4;
1697 	}
1698 
1699 	/* deal with partial 32-bit word that will be left over from this update */
1700 	byte_position = 0;
1701 	while (len > 0) {
1702 		context->part.d8[byte_position++] = *pOctets++;
1703 		context->position++;
1704 		len--;
1705 	}
1706 }
1707 
1708 /* mask used to zero empty bytes for final partial word */
1709 static u32 mask32[4] = { 0x00000000L, 0xFF000000L, 0xFFFF0000L, 0xFFFFFF00L };
1710 
1711 /* calculate the mic */
emmh32_final(emmh32_context * context,u8 digest[4])1712 static void emmh32_final(emmh32_context *context, u8 digest[4])
1713 {
1714 	int	coeff_position, byte_position;
1715 	u32	val;
1716 
1717 	u64 sum, utmp;
1718 	s64 stmp;
1719 
1720 	coeff_position = context->position >> 2;
1721 
1722 	/* deal with partial 32-bit word left over from last update */
1723 	byte_position = context->position & 3;
1724 	if (byte_position) {
1725 		/* have a partial word in part to deal with */
1726 		val = ntohl(context->part.d32);
1727 		MIC_ACCUM(val & mask32[byte_position]);	/* zero empty bytes */
1728 	}
1729 
1730 	/* reduce the accumulated u64 to a 32-bit MIC */
1731 	sum = context->accum;
1732 	stmp = (sum  & 0xffffffffLL) - ((sum >> 32)  * 15);
1733 	utmp = (stmp & 0xffffffffLL) - ((stmp >> 32) * 15);
1734 	sum = utmp & 0xffffffffLL;
1735 	if (utmp > 0x10000000fLL)
1736 		sum -= 15;
1737 
1738 	val = (u32)sum;
1739 	digest[0] = (val>>24) & 0xFF;
1740 	digest[1] = (val>>16) & 0xFF;
1741 	digest[2] = (val>>8) & 0xFF;
1742 	digest[3] = val & 0xFF;
1743 }
1744 
readBSSListRid(struct airo_info * ai,int first,BSSListRid * list)1745 static int readBSSListRid(struct airo_info *ai, int first,
1746 		      BSSListRid *list)
1747 {
1748 	Cmd cmd;
1749 	Resp rsp;
1750 
1751 	if (first == 1) {
1752 		if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN;
1753 		memset(&cmd, 0, sizeof(cmd));
1754 		cmd.cmd = CMD_LISTBSS;
1755 		if (down_interruptible(&ai->sem))
1756 			return -ERESTARTSYS;
1757 		ai->list_bss_task = current;
1758 		issuecommand(ai, &cmd, &rsp, true);
1759 		up(&ai->sem);
1760 		/* Let the command take effect */
1761 		schedule_timeout_uninterruptible(3 * HZ);
1762 		ai->list_bss_task = NULL;
1763 	}
1764 	return PC4500_readrid(ai, first ? ai->bssListFirst : ai->bssListNext,
1765 			    list, ai->bssListRidLen, 1);
1766 }
1767 
readWepKeyRid(struct airo_info * ai,WepKeyRid * wkr,int temp,int lock)1768 static int readWepKeyRid(struct airo_info *ai, WepKeyRid *wkr, int temp, int lock)
1769 {
1770 	return PC4500_readrid(ai, temp ? RID_WEP_TEMP : RID_WEP_PERM,
1771 				wkr, sizeof(*wkr), lock);
1772 }
1773 
writeWepKeyRid(struct airo_info * ai,WepKeyRid * wkr,int perm,int lock)1774 static int writeWepKeyRid(struct airo_info *ai, WepKeyRid *wkr, int perm, int lock)
1775 {
1776 	int rc;
1777 	rc = PC4500_writerid(ai, RID_WEP_TEMP, wkr, sizeof(*wkr), lock);
1778 	if (rc!=SUCCESS)
1779 		airo_print_err(ai->dev->name, "WEP_TEMP set %x", rc);
1780 	if (perm) {
1781 		rc = PC4500_writerid(ai, RID_WEP_PERM, wkr, sizeof(*wkr), lock);
1782 		if (rc!=SUCCESS)
1783 			airo_print_err(ai->dev->name, "WEP_PERM set %x", rc);
1784 	}
1785 	return rc;
1786 }
1787 
readSsidRid(struct airo_info * ai,SsidRid * ssidr)1788 static int readSsidRid(struct airo_info*ai, SsidRid *ssidr)
1789 {
1790 	return PC4500_readrid(ai, RID_SSID, ssidr, sizeof(*ssidr), 1);
1791 }
1792 
writeSsidRid(struct airo_info * ai,SsidRid * pssidr,int lock)1793 static int writeSsidRid(struct airo_info*ai, SsidRid *pssidr, int lock)
1794 {
1795 	return PC4500_writerid(ai, RID_SSID, pssidr, sizeof(*pssidr), lock);
1796 }
1797 
readConfigRid(struct airo_info * ai,int lock)1798 static int readConfigRid(struct airo_info *ai, int lock)
1799 {
1800 	int rc;
1801 	ConfigRid cfg;
1802 
1803 	if (ai->config.len)
1804 		return SUCCESS;
1805 
1806 	rc = PC4500_readrid(ai, RID_ACTUALCONFIG, &cfg, sizeof(cfg), lock);
1807 	if (rc != SUCCESS)
1808 		return rc;
1809 
1810 	ai->config = cfg;
1811 	return SUCCESS;
1812 }
1813 
checkThrottle(struct airo_info * ai)1814 static inline void checkThrottle(struct airo_info *ai)
1815 {
1816 	int i;
1817 /* Old hardware had a limit on encryption speed */
1818 	if (ai->config.authType != AUTH_OPEN && maxencrypt) {
1819 		for (i = 0; i<8; i++) {
1820 			if (ai->config.rates[i] > maxencrypt) {
1821 				ai->config.rates[i] = 0;
1822 			}
1823 		}
1824 	}
1825 }
1826 
writeConfigRid(struct airo_info * ai,int lock)1827 static int writeConfigRid(struct airo_info *ai, int lock)
1828 {
1829 	ConfigRid cfgr;
1830 
1831 	if (!test_bit (FLAG_COMMIT, &ai->flags))
1832 		return SUCCESS;
1833 
1834 	clear_bit (FLAG_COMMIT, &ai->flags);
1835 	clear_bit (FLAG_RESET, &ai->flags);
1836 	checkThrottle(ai);
1837 	cfgr = ai->config;
1838 
1839 	if ((cfgr.opmode & MODE_CFG_MASK) == MODE_STA_IBSS)
1840 		set_bit(FLAG_ADHOC, &ai->flags);
1841 	else
1842 		clear_bit(FLAG_ADHOC, &ai->flags);
1843 
1844 	return PC4500_writerid(ai, RID_CONFIG, &cfgr, sizeof(cfgr), lock);
1845 }
1846 
readStatusRid(struct airo_info * ai,StatusRid * statr,int lock)1847 static int readStatusRid(struct airo_info *ai, StatusRid *statr, int lock)
1848 {
1849 	return PC4500_readrid(ai, RID_STATUS, statr, sizeof(*statr), lock);
1850 }
1851 
writeAPListRid(struct airo_info * ai,APListRid * aplr,int lock)1852 static int writeAPListRid(struct airo_info *ai, APListRid *aplr, int lock)
1853 {
1854 	return PC4500_writerid(ai, RID_APLIST, aplr, sizeof(*aplr), lock);
1855 }
1856 
readCapabilityRid(struct airo_info * ai,CapabilityRid * capr,int lock)1857 static int readCapabilityRid(struct airo_info *ai, CapabilityRid *capr, int lock)
1858 {
1859 	return PC4500_readrid(ai, RID_CAPABILITIES, capr, sizeof(*capr), lock);
1860 }
1861 
readStatsRid(struct airo_info * ai,StatsRid * sr,int rid,int lock)1862 static int readStatsRid(struct airo_info*ai, StatsRid *sr, int rid, int lock)
1863 {
1864 	return PC4500_readrid(ai, rid, sr, sizeof(*sr), lock);
1865 }
1866 
try_auto_wep(struct airo_info * ai)1867 static void try_auto_wep(struct airo_info *ai)
1868 {
1869 	if (auto_wep && !test_bit(FLAG_RADIO_DOWN, &ai->flags)) {
1870 		ai->expires = RUN_AT(3*HZ);
1871 		wake_up_interruptible(&ai->thr_wait);
1872 	}
1873 }
1874 
airo_open(struct net_device * dev)1875 static int airo_open(struct net_device *dev)
1876 {
1877 	struct airo_info *ai = dev->ml_priv;
1878 	int rc = 0;
1879 
1880 	if (test_bit(FLAG_FLASHING, &ai->flags))
1881 		return -EIO;
1882 
1883 	/* Make sure the card is configured.
1884 	 * Wireless Extensions may postpone config changes until the card
1885 	 * is open (to pipeline changes and speed-up card setup). If
1886 	 * those changes are not yet committed, do it now - Jean II */
1887 	if (test_bit(FLAG_COMMIT, &ai->flags)) {
1888 		disable_MAC(ai, 1);
1889 		writeConfigRid(ai, 1);
1890 	}
1891 
1892 	if (ai->wifidev != dev) {
1893 		clear_bit(JOB_DIE, &ai->jobs);
1894 		ai->airo_thread_task = kthread_run(airo_thread, dev, "%s",
1895 						   dev->name);
1896 		if (IS_ERR(ai->airo_thread_task))
1897 			return (int)PTR_ERR(ai->airo_thread_task);
1898 
1899 		rc = request_irq(dev->irq, airo_interrupt, IRQF_SHARED,
1900 			dev->name, dev);
1901 		if (rc) {
1902 			airo_print_err(dev->name,
1903 				"register interrupt %d failed, rc %d",
1904 				dev->irq, rc);
1905 			set_bit(JOB_DIE, &ai->jobs);
1906 			kthread_stop(ai->airo_thread_task);
1907 			return rc;
1908 		}
1909 
1910 		/* Power on the MAC controller (which may have been disabled) */
1911 		clear_bit(FLAG_RADIO_DOWN, &ai->flags);
1912 		enable_interrupts(ai);
1913 
1914 		try_auto_wep(ai);
1915 	}
1916 	enable_MAC(ai, 1);
1917 
1918 	netif_start_queue(dev);
1919 	return 0;
1920 }
1921 
mpi_start_xmit(struct sk_buff * skb,struct net_device * dev)1922 static netdev_tx_t mpi_start_xmit(struct sk_buff *skb,
1923 					struct net_device *dev)
1924 {
1925 	int npacks, pending;
1926 	unsigned long flags;
1927 	struct airo_info *ai = dev->ml_priv;
1928 
1929 	if (!skb) {
1930 		airo_print_err(dev->name, "%s: skb == NULL!",__func__);
1931 		return NETDEV_TX_OK;
1932 	}
1933 	if (skb_padto(skb, ETH_ZLEN)) {
1934 		dev->stats.tx_dropped++;
1935 		return NETDEV_TX_OK;
1936 	}
1937 	npacks = skb_queue_len (&ai->txq);
1938 
1939 	if (npacks >= MAXTXQ - 1) {
1940 		netif_stop_queue (dev);
1941 		if (npacks > MAXTXQ) {
1942 			dev->stats.tx_fifo_errors++;
1943 			return NETDEV_TX_BUSY;
1944 		}
1945 		skb_queue_tail (&ai->txq, skb);
1946 		return NETDEV_TX_OK;
1947 	}
1948 
1949 	spin_lock_irqsave(&ai->aux_lock, flags);
1950 	skb_queue_tail (&ai->txq, skb);
1951 	pending = test_bit(FLAG_PENDING_XMIT, &ai->flags);
1952 	spin_unlock_irqrestore(&ai->aux_lock, flags);
1953 	netif_wake_queue (dev);
1954 
1955 	if (pending == 0) {
1956 		set_bit(FLAG_PENDING_XMIT, &ai->flags);
1957 		mpi_send_packet (dev);
1958 	}
1959 	return NETDEV_TX_OK;
1960 }
1961 
1962 /*
1963  * @mpi_send_packet
1964  *
1965  * Attempt to transmit a packet. Can be called from interrupt
1966  * or transmit . return number of packets we tried to send
1967  */
1968 
mpi_send_packet(struct net_device * dev)1969 static int mpi_send_packet (struct net_device *dev)
1970 {
1971 	struct sk_buff *skb;
1972 	unsigned char *buffer;
1973 	s16 len;
1974 	__le16 *payloadLen;
1975 	struct airo_info *ai = dev->ml_priv;
1976 	u8 *sendbuf;
1977 
1978 	/* get a packet to send */
1979 
1980 	if ((skb = skb_dequeue(&ai->txq)) == NULL) {
1981 		airo_print_err(dev->name,
1982 			"%s: Dequeue'd zero in send_packet()",
1983 			__func__);
1984 		return 0;
1985 	}
1986 
1987 	/* check min length*/
1988 	len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
1989 	buffer = skb->data;
1990 
1991 	ai->txfids[0].tx_desc.offset = 0;
1992 	ai->txfids[0].tx_desc.valid = 1;
1993 	ai->txfids[0].tx_desc.eoc = 1;
1994 	ai->txfids[0].tx_desc.len =len+sizeof(WifiHdr);
1995 
1996 /*
1997  * Magic, the cards firmware needs a length count (2 bytes) in the host buffer
1998  * right after  TXFID_HDR.The TXFID_HDR contains the status short so payloadlen
1999  * is immediately after it. ------------------------------------------------
2000  *                         |TXFIDHDR+STATUS|PAYLOADLEN|802.3HDR|PACKETDATA|
2001  *                         ------------------------------------------------
2002  */
2003 
2004 	memcpy(ai->txfids[0].virtual_host_addr,
2005 		(char *)&wifictlhdr8023, sizeof(wifictlhdr8023));
2006 
2007 	payloadLen = (__le16 *)(ai->txfids[0].virtual_host_addr +
2008 		sizeof(wifictlhdr8023));
2009 	sendbuf = ai->txfids[0].virtual_host_addr +
2010 		sizeof(wifictlhdr8023) + 2 ;
2011 
2012 	/*
2013 	 * Firmware automatically puts 802 header on so
2014 	 * we don't need to account for it in the length
2015 	 */
2016 	if (test_bit(FLAG_MIC_CAPABLE, &ai->flags) && ai->micstats.enabled &&
2017 		(ntohs(((__be16 *)buffer)[6]) != 0x888E)) {
2018 		MICBuffer pMic;
2019 
2020 		if (encapsulate(ai, (etherHead *)buffer, &pMic, len - sizeof(etherHead)) != SUCCESS)
2021 			return ERROR;
2022 
2023 		*payloadLen = cpu_to_le16(len-sizeof(etherHead)+sizeof(pMic));
2024 		ai->txfids[0].tx_desc.len += sizeof(pMic);
2025 		/* copy data into airo dma buffer */
2026 		memcpy (sendbuf, buffer, sizeof(etherHead));
2027 		buffer += sizeof(etherHead);
2028 		sendbuf += sizeof(etherHead);
2029 		memcpy (sendbuf, &pMic, sizeof(pMic));
2030 		sendbuf += sizeof(pMic);
2031 		memcpy (sendbuf, buffer, len - sizeof(etherHead));
2032 	} else {
2033 		*payloadLen = cpu_to_le16(len - sizeof(etherHead));
2034 
2035 		netif_trans_update(dev);
2036 
2037 		/* copy data into airo dma buffer */
2038 		memcpy(sendbuf, buffer, len);
2039 	}
2040 
2041 	memcpy_toio(ai->txfids[0].card_ram_off,
2042 		&ai->txfids[0].tx_desc, sizeof(TxFid));
2043 
2044 	OUT4500(ai, EVACK, 8);
2045 
2046 	dev_kfree_skb_any(skb);
2047 	return 1;
2048 }
2049 
get_tx_error(struct airo_info * ai,s32 fid)2050 static void get_tx_error(struct airo_info *ai, s32 fid)
2051 {
2052 	__le16 status;
2053 
2054 	if (fid < 0)
2055 		status = ((WifiCtlHdr *)ai->txfids[0].virtual_host_addr)->ctlhdr.status;
2056 	else {
2057 		if (bap_setup(ai, ai->fids[fid] & 0xffff, 4, BAP0) != SUCCESS)
2058 			return;
2059 		bap_read(ai, &status, 2, BAP0);
2060 	}
2061 	if (le16_to_cpu(status) & 2) /* Too many retries */
2062 		ai->dev->stats.tx_aborted_errors++;
2063 	if (le16_to_cpu(status) & 4) /* Transmit lifetime exceeded */
2064 		ai->dev->stats.tx_heartbeat_errors++;
2065 	if (le16_to_cpu(status) & 8) /* Aid fail */
2066 		{ }
2067 	if (le16_to_cpu(status) & 0x10) /* MAC disabled */
2068 		ai->dev->stats.tx_carrier_errors++;
2069 	if (le16_to_cpu(status) & 0x20) /* Association lost */
2070 		{ }
2071 	/* We produce a TXDROP event only for retry or lifetime
2072 	 * exceeded, because that's the only status that really mean
2073 	 * that this particular node went away.
2074 	 * Other errors means that *we* screwed up. - Jean II */
2075 	if ((le16_to_cpu(status) & 2) ||
2076 	     (le16_to_cpu(status) & 4)) {
2077 		union iwreq_data	wrqu;
2078 		char junk[0x18];
2079 
2080 		/* Faster to skip over useless data than to do
2081 		 * another bap_setup(). We are at offset 0x6 and
2082 		 * need to go to 0x18 and read 6 bytes - Jean II */
2083 		bap_read(ai, (__le16 *) junk, 0x18, BAP0);
2084 
2085 		/* Copy 802.11 dest address.
2086 		 * We use the 802.11 header because the frame may
2087 		 * not be 802.3 or may be mangled...
2088 		 * In Ad-Hoc mode, it will be the node address.
2089 		 * In managed mode, it will be most likely the AP addr
2090 		 * User space will figure out how to convert it to
2091 		 * whatever it needs (IP address or else).
2092 		 * - Jean II */
2093 		memcpy(wrqu.addr.sa_data, junk + 0x12, ETH_ALEN);
2094 		wrqu.addr.sa_family = ARPHRD_ETHER;
2095 
2096 		/* Send event to user space */
2097 		wireless_send_event(ai->dev, IWEVTXDROP, &wrqu, NULL);
2098 	}
2099 }
2100 
airo_end_xmit(struct net_device * dev,bool may_sleep)2101 static void airo_end_xmit(struct net_device *dev, bool may_sleep)
2102 {
2103 	u16 status;
2104 	int i;
2105 	struct airo_info *priv = dev->ml_priv;
2106 	struct sk_buff *skb = priv->xmit.skb;
2107 	int fid = priv->xmit.fid;
2108 	u32 *fids = priv->fids;
2109 
2110 	clear_bit(JOB_XMIT, &priv->jobs);
2111 	clear_bit(FLAG_PENDING_XMIT, &priv->flags);
2112 	status = transmit_802_3_packet(priv, fids[fid], skb->data, may_sleep);
2113 	up(&priv->sem);
2114 
2115 	i = 0;
2116 	if (status == SUCCESS) {
2117 		netif_trans_update(dev);
2118 		for (; i < MAX_FIDS / 2 && (priv->fids[i] & 0xffff0000); i++);
2119 	} else {
2120 		priv->fids[fid] &= 0xffff;
2121 		dev->stats.tx_window_errors++;
2122 	}
2123 	if (i < MAX_FIDS / 2)
2124 		netif_wake_queue(dev);
2125 	dev_kfree_skb(skb);
2126 }
2127 
airo_start_xmit(struct sk_buff * skb,struct net_device * dev)2128 static netdev_tx_t airo_start_xmit(struct sk_buff *skb,
2129 					 struct net_device *dev)
2130 {
2131 	s16 len;
2132 	int i, j;
2133 	struct airo_info *priv = dev->ml_priv;
2134 	u32 *fids = priv->fids;
2135 
2136 	if (skb == NULL) {
2137 		airo_print_err(dev->name, "%s: skb == NULL!", __func__);
2138 		return NETDEV_TX_OK;
2139 	}
2140 	if (skb_padto(skb, ETH_ZLEN)) {
2141 		dev->stats.tx_dropped++;
2142 		return NETDEV_TX_OK;
2143 	}
2144 
2145 	/* Find a vacant FID */
2146 	for (i = 0; i < MAX_FIDS / 2 && (fids[i] & 0xffff0000); i++);
2147 	for (j = i + 1; j < MAX_FIDS / 2 && (fids[j] & 0xffff0000); j++);
2148 
2149 	if (j >= MAX_FIDS / 2) {
2150 		netif_stop_queue(dev);
2151 
2152 		if (i == MAX_FIDS / 2) {
2153 			dev->stats.tx_fifo_errors++;
2154 			return NETDEV_TX_BUSY;
2155 		}
2156 	}
2157 	/* check min length*/
2158 	len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
2159         /* Mark fid as used & save length for later */
2160 	fids[i] |= (len << 16);
2161 	priv->xmit.skb = skb;
2162 	priv->xmit.fid = i;
2163 	if (down_trylock(&priv->sem) != 0) {
2164 		set_bit(FLAG_PENDING_XMIT, &priv->flags);
2165 		netif_stop_queue(dev);
2166 		set_bit(JOB_XMIT, &priv->jobs);
2167 		wake_up_interruptible(&priv->thr_wait);
2168 	} else
2169 		airo_end_xmit(dev, false);
2170 	return NETDEV_TX_OK;
2171 }
2172 
airo_end_xmit11(struct net_device * dev,bool may_sleep)2173 static void airo_end_xmit11(struct net_device *dev, bool may_sleep)
2174 {
2175 	u16 status;
2176 	int i;
2177 	struct airo_info *priv = dev->ml_priv;
2178 	struct sk_buff *skb = priv->xmit11.skb;
2179 	int fid = priv->xmit11.fid;
2180 	u32 *fids = priv->fids;
2181 
2182 	clear_bit(JOB_XMIT11, &priv->jobs);
2183 	clear_bit(FLAG_PENDING_XMIT11, &priv->flags);
2184 	status = transmit_802_11_packet(priv, fids[fid], skb->data, may_sleep);
2185 	up(&priv->sem);
2186 
2187 	i = MAX_FIDS / 2;
2188 	if (status == SUCCESS) {
2189 		netif_trans_update(dev);
2190 		for (; i < MAX_FIDS && (priv->fids[i] & 0xffff0000); i++);
2191 	} else {
2192 		priv->fids[fid] &= 0xffff;
2193 		dev->stats.tx_window_errors++;
2194 	}
2195 	if (i < MAX_FIDS)
2196 		netif_wake_queue(dev);
2197 	dev_kfree_skb(skb);
2198 }
2199 
airo_start_xmit11(struct sk_buff * skb,struct net_device * dev)2200 static netdev_tx_t airo_start_xmit11(struct sk_buff *skb,
2201 					   struct net_device *dev)
2202 {
2203 	s16 len;
2204 	int i, j;
2205 	struct airo_info *priv = dev->ml_priv;
2206 	u32 *fids = priv->fids;
2207 
2208 	if (test_bit(FLAG_MPI, &priv->flags)) {
2209 		/* Not implemented yet for MPI350 */
2210 		netif_stop_queue(dev);
2211 		dev_kfree_skb_any(skb);
2212 		return NETDEV_TX_OK;
2213 	}
2214 
2215 	if (skb == NULL) {
2216 		airo_print_err(dev->name, "%s: skb == NULL!", __func__);
2217 		return NETDEV_TX_OK;
2218 	}
2219 	if (skb_padto(skb, ETH_ZLEN)) {
2220 		dev->stats.tx_dropped++;
2221 		return NETDEV_TX_OK;
2222 	}
2223 
2224 	/* Find a vacant FID */
2225 	for (i = MAX_FIDS / 2; i < MAX_FIDS && (fids[i] & 0xffff0000); i++);
2226 	for (j = i + 1; j < MAX_FIDS && (fids[j] & 0xffff0000); j++);
2227 
2228 	if (j >= MAX_FIDS) {
2229 		netif_stop_queue(dev);
2230 
2231 		if (i == MAX_FIDS) {
2232 			dev->stats.tx_fifo_errors++;
2233 			return NETDEV_TX_BUSY;
2234 		}
2235 	}
2236 	/* check min length*/
2237 	len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
2238         /* Mark fid as used & save length for later */
2239 	fids[i] |= (len << 16);
2240 	priv->xmit11.skb = skb;
2241 	priv->xmit11.fid = i;
2242 	if (down_trylock(&priv->sem) != 0) {
2243 		set_bit(FLAG_PENDING_XMIT11, &priv->flags);
2244 		netif_stop_queue(dev);
2245 		set_bit(JOB_XMIT11, &priv->jobs);
2246 		wake_up_interruptible(&priv->thr_wait);
2247 	} else
2248 		airo_end_xmit11(dev, false);
2249 	return NETDEV_TX_OK;
2250 }
2251 
airo_read_stats(struct net_device * dev)2252 static void airo_read_stats(struct net_device *dev)
2253 {
2254 	struct airo_info *ai = dev->ml_priv;
2255 	StatsRid stats_rid;
2256 	__le32 *vals = stats_rid.vals;
2257 
2258 	clear_bit(JOB_STATS, &ai->jobs);
2259 	if (ai->power.event) {
2260 		up(&ai->sem);
2261 		return;
2262 	}
2263 	readStatsRid(ai, &stats_rid, RID_STATS, 0);
2264 	up(&ai->sem);
2265 
2266 	dev->stats.rx_packets = le32_to_cpu(vals[43]) + le32_to_cpu(vals[44]) +
2267 			       le32_to_cpu(vals[45]);
2268 	dev->stats.tx_packets = le32_to_cpu(vals[39]) + le32_to_cpu(vals[40]) +
2269 			       le32_to_cpu(vals[41]);
2270 	dev->stats.rx_bytes = le32_to_cpu(vals[92]);
2271 	dev->stats.tx_bytes = le32_to_cpu(vals[91]);
2272 	dev->stats.rx_errors = le32_to_cpu(vals[0]) + le32_to_cpu(vals[2]) +
2273 			      le32_to_cpu(vals[3]) + le32_to_cpu(vals[4]);
2274 	dev->stats.tx_errors = le32_to_cpu(vals[42]) +
2275 			      dev->stats.tx_fifo_errors;
2276 	dev->stats.multicast = le32_to_cpu(vals[43]);
2277 	dev->stats.collisions = le32_to_cpu(vals[89]);
2278 
2279 	/* detailed rx_errors: */
2280 	dev->stats.rx_length_errors = le32_to_cpu(vals[3]);
2281 	dev->stats.rx_crc_errors = le32_to_cpu(vals[4]);
2282 	dev->stats.rx_frame_errors = le32_to_cpu(vals[2]);
2283 	dev->stats.rx_fifo_errors = le32_to_cpu(vals[0]);
2284 }
2285 
airo_get_stats(struct net_device * dev)2286 static struct net_device_stats *airo_get_stats(struct net_device *dev)
2287 {
2288 	struct airo_info *local =  dev->ml_priv;
2289 
2290 	if (!test_bit(JOB_STATS, &local->jobs)) {
2291 		set_bit(JOB_STATS, &local->jobs);
2292 		wake_up_interruptible(&local->thr_wait);
2293 	}
2294 
2295 	return &dev->stats;
2296 }
2297 
airo_set_promisc(struct airo_info * ai,bool may_sleep)2298 static void airo_set_promisc(struct airo_info *ai, bool may_sleep)
2299 {
2300 	Cmd cmd;
2301 	Resp rsp;
2302 
2303 	memset(&cmd, 0, sizeof(cmd));
2304 	cmd.cmd = CMD_SETMODE;
2305 	clear_bit(JOB_PROMISC, &ai->jobs);
2306 	cmd.parm0=(ai->flags&IFF_PROMISC) ? PROMISC : NOPROMISC;
2307 	issuecommand(ai, &cmd, &rsp, may_sleep);
2308 	up(&ai->sem);
2309 }
2310 
airo_set_multicast_list(struct net_device * dev)2311 static void airo_set_multicast_list(struct net_device *dev)
2312 {
2313 	struct airo_info *ai = dev->ml_priv;
2314 
2315 	if ((dev->flags ^ ai->flags) & IFF_PROMISC) {
2316 		change_bit(FLAG_PROMISC, &ai->flags);
2317 		if (down_trylock(&ai->sem) != 0) {
2318 			set_bit(JOB_PROMISC, &ai->jobs);
2319 			wake_up_interruptible(&ai->thr_wait);
2320 		} else
2321 			airo_set_promisc(ai, false);
2322 	}
2323 
2324 	if ((dev->flags&IFF_ALLMULTI) || !netdev_mc_empty(dev)) {
2325 		/* Turn on multicast.  (Should be already setup...) */
2326 	}
2327 }
2328 
airo_set_mac_address(struct net_device * dev,void * p)2329 static int airo_set_mac_address(struct net_device *dev, void *p)
2330 {
2331 	struct airo_info *ai = dev->ml_priv;
2332 	struct sockaddr *addr = p;
2333 
2334 	readConfigRid(ai, 1);
2335 	memcpy (ai->config.macAddr, addr->sa_data, dev->addr_len);
2336 	set_bit (FLAG_COMMIT, &ai->flags);
2337 	disable_MAC(ai, 1);
2338 	writeConfigRid (ai, 1);
2339 	enable_MAC(ai, 1);
2340 	dev_addr_set(ai->dev, addr->sa_data);
2341 	if (ai->wifidev)
2342 		dev_addr_set(ai->wifidev, addr->sa_data);
2343 	return 0;
2344 }
2345 
2346 static LIST_HEAD(airo_devices);
2347 
add_airo_dev(struct airo_info * ai)2348 static void add_airo_dev(struct airo_info *ai)
2349 {
2350 	/* Upper layers already keep track of PCI devices,
2351 	 * so we only need to remember our non-PCI cards. */
2352 	if (!ai->pci)
2353 		list_add_tail(&ai->dev_list, &airo_devices);
2354 }
2355 
del_airo_dev(struct airo_info * ai)2356 static void del_airo_dev(struct airo_info *ai)
2357 {
2358 	if (!ai->pci)
2359 		list_del(&ai->dev_list);
2360 }
2361 
airo_close(struct net_device * dev)2362 static int airo_close(struct net_device *dev)
2363 {
2364 	struct airo_info *ai = dev->ml_priv;
2365 
2366 	netif_stop_queue(dev);
2367 
2368 	if (ai->wifidev != dev) {
2369 #ifdef POWER_ON_DOWN
2370 		/* Shut power to the card. The idea is that the user can save
2371 		 * power when he doesn't need the card with "ifconfig down".
2372 		 * That's the method that is most friendly towards the network
2373 		 * stack (i.e. the network stack won't try to broadcast
2374 		 * anything on the interface and routes are gone. Jean II */
2375 		set_bit(FLAG_RADIO_DOWN, &ai->flags);
2376 		disable_MAC(ai, 1);
2377 #endif
2378 		disable_interrupts(ai);
2379 
2380 		free_irq(dev->irq, dev);
2381 
2382 		set_bit(JOB_DIE, &ai->jobs);
2383 		kthread_stop(ai->airo_thread_task);
2384 	}
2385 	return 0;
2386 }
2387 
stop_airo_card(struct net_device * dev,int freeres)2388 void stop_airo_card(struct net_device *dev, int freeres)
2389 {
2390 	struct airo_info *ai = dev->ml_priv;
2391 
2392 	set_bit(FLAG_RADIO_DOWN, &ai->flags);
2393 	disable_MAC(ai, 1);
2394 	disable_interrupts(ai);
2395 	takedown_proc_entry(dev, ai);
2396 	if (test_bit(FLAG_REGISTERED, &ai->flags)) {
2397 		unregister_netdev(dev);
2398 		if (ai->wifidev) {
2399 			unregister_netdev(ai->wifidev);
2400 			free_netdev(ai->wifidev);
2401 			ai->wifidev = NULL;
2402 		}
2403 		clear_bit(FLAG_REGISTERED, &ai->flags);
2404 	}
2405 	/*
2406 	 * Clean out tx queue
2407 	 */
2408 	if (test_bit(FLAG_MPI, &ai->flags) && !skb_queue_empty(&ai->txq)) {
2409 		struct sk_buff *skb = NULL;
2410 		for (;(skb = skb_dequeue(&ai->txq));)
2411 			dev_kfree_skb(skb);
2412 	}
2413 
2414 	airo_networks_free (ai);
2415 
2416 	kfree(ai->flash);
2417 	kfree(ai->rssi);
2418 	kfree(ai->SSID);
2419 	if (freeres) {
2420 		/* PCMCIA frees this stuff, so only for PCI and ISA */
2421 		release_region(dev->base_addr, 64);
2422 		if (test_bit(FLAG_MPI, &ai->flags)) {
2423 			if (ai->pci)
2424 				mpi_unmap_card(ai->pci);
2425 			if (ai->pcimem)
2426 				iounmap(ai->pcimem);
2427 			if (ai->pciaux)
2428 				iounmap(ai->pciaux);
2429 			dma_free_coherent(&ai->pci->dev, PCI_SHARED_LEN,
2430 					  ai->shared, ai->shared_dma);
2431 		}
2432         }
2433 	crypto_free_sync_skcipher(ai->tfm);
2434 	del_airo_dev(ai);
2435 	free_netdev(dev);
2436 }
2437 
2438 EXPORT_SYMBOL(stop_airo_card);
2439 
wll_header_parse(const struct sk_buff * skb,unsigned char * haddr)2440 static int wll_header_parse(const struct sk_buff *skb, unsigned char *haddr)
2441 {
2442 	memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN);
2443 	return ETH_ALEN;
2444 }
2445 
mpi_unmap_card(struct pci_dev * pci)2446 static void mpi_unmap_card(struct pci_dev *pci)
2447 {
2448 	unsigned long mem_start = pci_resource_start(pci, 1);
2449 	unsigned long mem_len = pci_resource_len(pci, 1);
2450 	unsigned long aux_start = pci_resource_start(pci, 2);
2451 	unsigned long aux_len = AUXMEMSIZE;
2452 
2453 	release_mem_region(aux_start, aux_len);
2454 	release_mem_region(mem_start, mem_len);
2455 }
2456 
2457 /*************************************************************
2458  *  This routine assumes that descriptors have been setup .
2459  *  Run at insmod time or after reset when the descriptors
2460  *  have been initialized . Returns 0 if all is well nz
2461  *  otherwise . Does not allocate memory but sets up card
2462  *  using previously allocated descriptors.
2463  */
mpi_init_descriptors(struct airo_info * ai)2464 static int mpi_init_descriptors (struct airo_info *ai)
2465 {
2466 	Cmd cmd;
2467 	Resp rsp;
2468 	int i;
2469 	int rc = SUCCESS;
2470 
2471 	/* Alloc  card RX descriptors */
2472 	netif_stop_queue(ai->dev);
2473 
2474 	memset(&rsp, 0, sizeof(rsp));
2475 	memset(&cmd, 0, sizeof(cmd));
2476 
2477 	cmd.cmd = CMD_ALLOCATEAUX;
2478 	cmd.parm0 = FID_RX;
2479 	cmd.parm1 = (ai->rxfids[0].card_ram_off - ai->pciaux);
2480 	cmd.parm2 = MPI_MAX_FIDS;
2481 	rc = issuecommand(ai, &cmd, &rsp, true);
2482 	if (rc != SUCCESS) {
2483 		airo_print_err(ai->dev->name, "Couldn't allocate RX FID");
2484 		return rc;
2485 	}
2486 
2487 	for (i = 0; i<MPI_MAX_FIDS; i++) {
2488 		memcpy_toio(ai->rxfids[i].card_ram_off,
2489 			&ai->rxfids[i].rx_desc, sizeof(RxFid));
2490 	}
2491 
2492 	/* Alloc card TX descriptors */
2493 
2494 	memset(&rsp, 0, sizeof(rsp));
2495 	memset(&cmd, 0, sizeof(cmd));
2496 
2497 	cmd.cmd = CMD_ALLOCATEAUX;
2498 	cmd.parm0 = FID_TX;
2499 	cmd.parm1 = (ai->txfids[0].card_ram_off - ai->pciaux);
2500 	cmd.parm2 = MPI_MAX_FIDS;
2501 
2502 	for (i = 0; i<MPI_MAX_FIDS; i++) {
2503 		ai->txfids[i].tx_desc.valid = 1;
2504 		memcpy_toio(ai->txfids[i].card_ram_off,
2505 			&ai->txfids[i].tx_desc, sizeof(TxFid));
2506 	}
2507 	ai->txfids[i-1].tx_desc.eoc = 1; /* Last descriptor has EOC set */
2508 
2509 	rc = issuecommand(ai, &cmd, &rsp, true);
2510 	if (rc != SUCCESS) {
2511 		airo_print_err(ai->dev->name, "Couldn't allocate TX FID");
2512 		return rc;
2513 	}
2514 
2515 	/* Alloc card Rid descriptor */
2516 	memset(&rsp, 0, sizeof(rsp));
2517 	memset(&cmd, 0, sizeof(cmd));
2518 
2519 	cmd.cmd = CMD_ALLOCATEAUX;
2520 	cmd.parm0 = RID_RW;
2521 	cmd.parm1 = (ai->config_desc.card_ram_off - ai->pciaux);
2522 	cmd.parm2 = 1; /* Magic number... */
2523 	rc = issuecommand(ai, &cmd, &rsp, true);
2524 	if (rc != SUCCESS) {
2525 		airo_print_err(ai->dev->name, "Couldn't allocate RID");
2526 		return rc;
2527 	}
2528 
2529 	memcpy_toio(ai->config_desc.card_ram_off,
2530 		&ai->config_desc.rid_desc, sizeof(Rid));
2531 
2532 	return rc;
2533 }
2534 
2535 /*
2536  * We are setting up three things here:
2537  * 1) Map AUX memory for descriptors: Rid, TxFid, or RxFid.
2538  * 2) Map PCI memory for issuing commands.
2539  * 3) Allocate memory (shared) to send and receive ethernet frames.
2540  */
mpi_map_card(struct airo_info * ai,struct pci_dev * pci)2541 static int mpi_map_card(struct airo_info *ai, struct pci_dev *pci)
2542 {
2543 	unsigned long mem_start, mem_len, aux_start, aux_len;
2544 	int rc = -1;
2545 	int i;
2546 	dma_addr_t busaddroff;
2547 	unsigned char *vpackoff;
2548 	unsigned char __iomem *pciaddroff;
2549 
2550 	mem_start = pci_resource_start(pci, 1);
2551 	mem_len = pci_resource_len(pci, 1);
2552 	aux_start = pci_resource_start(pci, 2);
2553 	aux_len = AUXMEMSIZE;
2554 
2555 	if (!request_mem_region(mem_start, mem_len, DRV_NAME)) {
2556 		airo_print_err("", "Couldn't get region %x[%x]",
2557 			(int)mem_start, (int)mem_len);
2558 		goto out;
2559 	}
2560 	if (!request_mem_region(aux_start, aux_len, DRV_NAME)) {
2561 		airo_print_err("", "Couldn't get region %x[%x]",
2562 			(int)aux_start, (int)aux_len);
2563 		goto free_region1;
2564 	}
2565 
2566 	ai->pcimem = ioremap(mem_start, mem_len);
2567 	if (!ai->pcimem) {
2568 		airo_print_err("", "Couldn't map region %x[%x]",
2569 			(int)mem_start, (int)mem_len);
2570 		goto free_region2;
2571 	}
2572 	ai->pciaux = ioremap(aux_start, aux_len);
2573 	if (!ai->pciaux) {
2574 		airo_print_err("", "Couldn't map region %x[%x]",
2575 			(int)aux_start, (int)aux_len);
2576 		goto free_memmap;
2577 	}
2578 
2579 	/* Reserve PKTSIZE for each fid and 2K for the Rids */
2580 	ai->shared = dma_alloc_coherent(&pci->dev, PCI_SHARED_LEN,
2581 					&ai->shared_dma, GFP_KERNEL);
2582 	if (!ai->shared) {
2583 		airo_print_err("", "Couldn't alloc_coherent %d",
2584 			PCI_SHARED_LEN);
2585 		goto free_auxmap;
2586 	}
2587 
2588 	/*
2589 	 * Setup descriptor RX, TX, CONFIG
2590 	 */
2591 	busaddroff = ai->shared_dma;
2592 	pciaddroff = ai->pciaux + AUX_OFFSET;
2593 	vpackoff   = ai->shared;
2594 
2595 	/* RX descriptor setup */
2596 	for (i = 0; i < MPI_MAX_FIDS; i++) {
2597 		ai->rxfids[i].pending = 0;
2598 		ai->rxfids[i].card_ram_off = pciaddroff;
2599 		ai->rxfids[i].virtual_host_addr = vpackoff;
2600 		ai->rxfids[i].rx_desc.host_addr = busaddroff;
2601 		ai->rxfids[i].rx_desc.valid = 1;
2602 		ai->rxfids[i].rx_desc.len = PKTSIZE;
2603 		ai->rxfids[i].rx_desc.rdy = 0;
2604 
2605 		pciaddroff += sizeof(RxFid);
2606 		busaddroff += PKTSIZE;
2607 		vpackoff   += PKTSIZE;
2608 	}
2609 
2610 	/* TX descriptor setup */
2611 	for (i = 0; i < MPI_MAX_FIDS; i++) {
2612 		ai->txfids[i].card_ram_off = pciaddroff;
2613 		ai->txfids[i].virtual_host_addr = vpackoff;
2614 		ai->txfids[i].tx_desc.valid = 1;
2615 		ai->txfids[i].tx_desc.host_addr = busaddroff;
2616 		memcpy(ai->txfids[i].virtual_host_addr,
2617 			&wifictlhdr8023, sizeof(wifictlhdr8023));
2618 
2619 		pciaddroff += sizeof(TxFid);
2620 		busaddroff += PKTSIZE;
2621 		vpackoff   += PKTSIZE;
2622 	}
2623 	ai->txfids[i-1].tx_desc.eoc = 1; /* Last descriptor has EOC set */
2624 
2625 	/* Rid descriptor setup */
2626 	ai->config_desc.card_ram_off = pciaddroff;
2627 	ai->config_desc.virtual_host_addr = vpackoff;
2628 	ai->config_desc.rid_desc.host_addr = busaddroff;
2629 	ai->ridbus = busaddroff;
2630 	ai->config_desc.rid_desc.rid = 0;
2631 	ai->config_desc.rid_desc.len = RIDSIZE;
2632 	ai->config_desc.rid_desc.valid = 1;
2633 	pciaddroff += sizeof(Rid);
2634 	busaddroff += RIDSIZE;
2635 	vpackoff   += RIDSIZE;
2636 
2637 	/* Tell card about descriptors */
2638 	if (mpi_init_descriptors (ai) != SUCCESS)
2639 		goto free_shared;
2640 
2641 	return 0;
2642  free_shared:
2643 	dma_free_coherent(&pci->dev, PCI_SHARED_LEN, ai->shared,
2644 			  ai->shared_dma);
2645  free_auxmap:
2646 	iounmap(ai->pciaux);
2647  free_memmap:
2648 	iounmap(ai->pcimem);
2649  free_region2:
2650 	release_mem_region(aux_start, aux_len);
2651  free_region1:
2652 	release_mem_region(mem_start, mem_len);
2653  out:
2654 	return rc;
2655 }
2656 
2657 static const struct header_ops airo_header_ops = {
2658 	.parse = wll_header_parse,
2659 };
2660 
2661 static const struct net_device_ops airo11_netdev_ops = {
2662 	.ndo_open 		= airo_open,
2663 	.ndo_stop 		= airo_close,
2664 	.ndo_start_xmit 	= airo_start_xmit11,
2665 	.ndo_get_stats 		= airo_get_stats,
2666 	.ndo_set_mac_address	= airo_set_mac_address,
2667 	.ndo_siocdevprivate	= airo_siocdevprivate,
2668 };
2669 
wifi_setup(struct net_device * dev)2670 static void wifi_setup(struct net_device *dev)
2671 {
2672 	dev->netdev_ops = &airo11_netdev_ops;
2673 	dev->header_ops = &airo_header_ops;
2674 	dev->wireless_handlers = &airo_handler_def;
2675 
2676 	dev->type               = ARPHRD_IEEE80211;
2677 	dev->hard_header_len    = ETH_HLEN;
2678 	dev->mtu                = AIRO_DEF_MTU;
2679 	dev->min_mtu            = 68;
2680 	dev->max_mtu            = MIC_MSGLEN_MAX;
2681 	dev->addr_len           = ETH_ALEN;
2682 	dev->tx_queue_len       = 100;
2683 
2684 	eth_broadcast_addr(dev->broadcast);
2685 
2686 	dev->flags              = IFF_BROADCAST|IFF_MULTICAST;
2687 }
2688 
init_wifidev(struct airo_info * ai,struct net_device * ethdev)2689 static struct net_device *init_wifidev(struct airo_info *ai,
2690 					struct net_device *ethdev)
2691 {
2692 	int err;
2693 	struct net_device *dev = alloc_netdev(0, "wifi%d", NET_NAME_UNKNOWN,
2694 					      wifi_setup);
2695 	if (!dev)
2696 		return NULL;
2697 	dev->ml_priv = ethdev->ml_priv;
2698 	dev->irq = ethdev->irq;
2699 	dev->base_addr = ethdev->base_addr;
2700 	dev->wireless_data = ethdev->wireless_data;
2701 	SET_NETDEV_DEV(dev, ethdev->dev.parent);
2702 	eth_hw_addr_inherit(dev, ethdev);
2703 	err = register_netdev(dev);
2704 	if (err<0) {
2705 		free_netdev(dev);
2706 		return NULL;
2707 	}
2708 	return dev;
2709 }
2710 
reset_card(struct net_device * dev,int lock)2711 static int reset_card(struct net_device *dev, int lock)
2712 {
2713 	struct airo_info *ai = dev->ml_priv;
2714 
2715 	if (lock && down_interruptible(&ai->sem))
2716 		return -1;
2717 	waitbusy (ai);
2718 	OUT4500(ai, COMMAND, CMD_SOFTRESET);
2719 	msleep(200);
2720 	waitbusy (ai);
2721 	msleep(200);
2722 	if (lock)
2723 		up(&ai->sem);
2724 	return 0;
2725 }
2726 
2727 #define AIRO_MAX_NETWORK_COUNT	64
airo_networks_allocate(struct airo_info * ai)2728 static int airo_networks_allocate(struct airo_info *ai)
2729 {
2730 	if (ai->networks)
2731 		return 0;
2732 
2733 	ai->networks = kcalloc(AIRO_MAX_NETWORK_COUNT, sizeof(BSSListElement),
2734 			       GFP_KERNEL);
2735 	if (!ai->networks) {
2736 		airo_print_warn("", "Out of memory allocating beacons");
2737 		return -ENOMEM;
2738 	}
2739 
2740 	return 0;
2741 }
2742 
airo_networks_free(struct airo_info * ai)2743 static void airo_networks_free(struct airo_info *ai)
2744 {
2745 	kfree(ai->networks);
2746 	ai->networks = NULL;
2747 }
2748 
airo_networks_initialize(struct airo_info * ai)2749 static void airo_networks_initialize(struct airo_info *ai)
2750 {
2751 	int i;
2752 
2753 	INIT_LIST_HEAD(&ai->network_free_list);
2754 	INIT_LIST_HEAD(&ai->network_list);
2755 	for (i = 0; i < AIRO_MAX_NETWORK_COUNT; i++)
2756 		list_add_tail(&ai->networks[i].list,
2757 			      &ai->network_free_list);
2758 }
2759 
2760 static const struct net_device_ops airo_netdev_ops = {
2761 	.ndo_open		= airo_open,
2762 	.ndo_stop		= airo_close,
2763 	.ndo_start_xmit		= airo_start_xmit,
2764 	.ndo_get_stats		= airo_get_stats,
2765 	.ndo_set_rx_mode	= airo_set_multicast_list,
2766 	.ndo_set_mac_address	= airo_set_mac_address,
2767 	.ndo_siocdevprivate	= airo_siocdevprivate,
2768 	.ndo_validate_addr	= eth_validate_addr,
2769 };
2770 
2771 static const struct net_device_ops mpi_netdev_ops = {
2772 	.ndo_open		= airo_open,
2773 	.ndo_stop		= airo_close,
2774 	.ndo_start_xmit		= mpi_start_xmit,
2775 	.ndo_get_stats		= airo_get_stats,
2776 	.ndo_set_rx_mode	= airo_set_multicast_list,
2777 	.ndo_set_mac_address	= airo_set_mac_address,
2778 	.ndo_siocdevprivate	= airo_siocdevprivate,
2779 	.ndo_validate_addr	= eth_validate_addr,
2780 };
2781 
2782 
_init_airo_card(unsigned short irq,int port,int is_pcmcia,struct pci_dev * pci,struct device * dmdev)2783 static struct net_device *_init_airo_card(unsigned short irq, int port,
2784 					   int is_pcmcia, struct pci_dev *pci,
2785 					   struct device *dmdev)
2786 {
2787 	struct net_device *dev;
2788 	struct airo_info *ai;
2789 	int i, rc;
2790 	CapabilityRid cap_rid;
2791 
2792 	/* Create the network device object. */
2793 	dev = alloc_netdev(sizeof(*ai), "", NET_NAME_UNKNOWN, ether_setup);
2794 	if (!dev) {
2795 		airo_print_err("", "Couldn't alloc_etherdev");
2796 		return NULL;
2797 	}
2798 
2799 	ai = dev->ml_priv = netdev_priv(dev);
2800 	ai->wifidev = NULL;
2801 	ai->flags = 1 << FLAG_RADIO_DOWN;
2802 	ai->jobs = 0;
2803 	ai->dev = dev;
2804 	if (pci && (pci->device == 0x5000 || pci->device == 0xa504)) {
2805 		airo_print_dbg("", "Found an MPI350 card");
2806 		set_bit(FLAG_MPI, &ai->flags);
2807 	}
2808 	spin_lock_init(&ai->aux_lock);
2809 	sema_init(&ai->sem, 1);
2810 	ai->config.len = 0;
2811 	ai->pci = pci;
2812 	init_waitqueue_head (&ai->thr_wait);
2813 	ai->tfm = NULL;
2814 	add_airo_dev(ai);
2815 	ai->APList.len = cpu_to_le16(sizeof(struct APListRid));
2816 
2817 	if (airo_networks_allocate (ai))
2818 		goto err_out_free;
2819 	airo_networks_initialize (ai);
2820 
2821 	skb_queue_head_init (&ai->txq);
2822 
2823 	/* The Airo-specific entries in the device structure. */
2824 	if (test_bit(FLAG_MPI,&ai->flags))
2825 		dev->netdev_ops = &mpi_netdev_ops;
2826 	else
2827 		dev->netdev_ops = &airo_netdev_ops;
2828 	dev->wireless_handlers = &airo_handler_def;
2829 	ai->wireless_data.spy_data = &ai->spy_data;
2830 	dev->wireless_data = &ai->wireless_data;
2831 	dev->irq = irq;
2832 	dev->base_addr = port;
2833 	dev->priv_flags &= ~IFF_TX_SKB_SHARING;
2834 	dev->max_mtu = MIC_MSGLEN_MAX;
2835 
2836 	SET_NETDEV_DEV(dev, dmdev);
2837 
2838 	reset_card (dev, 1);
2839 	msleep(400);
2840 
2841 	if (!is_pcmcia) {
2842 		if (!request_region(dev->base_addr, 64, DRV_NAME)) {
2843 			rc = -EBUSY;
2844 			airo_print_err(dev->name, "Couldn't request region");
2845 			goto err_out_nets;
2846 		}
2847 	}
2848 
2849 	if (test_bit(FLAG_MPI,&ai->flags)) {
2850 		if (mpi_map_card(ai, pci)) {
2851 			airo_print_err("", "Could not map memory");
2852 			goto err_out_res;
2853 		}
2854 	}
2855 
2856 	if (probe) {
2857 		if (setup_card(ai, dev, 1) != SUCCESS) {
2858 			airo_print_err(dev->name, "MAC could not be enabled");
2859 			rc = -EIO;
2860 			goto err_out_map;
2861 		}
2862 	} else if (!test_bit(FLAG_MPI,&ai->flags)) {
2863 		ai->bap_read = fast_bap_read;
2864 		set_bit(FLAG_FLASHING, &ai->flags);
2865 	}
2866 
2867 	strcpy(dev->name, "eth%d");
2868 	rc = register_netdev(dev);
2869 	if (rc) {
2870 		airo_print_err(dev->name, "Couldn't register_netdev");
2871 		goto err_out_map;
2872 	}
2873 	ai->wifidev = init_wifidev(ai, dev);
2874 	if (!ai->wifidev)
2875 		goto err_out_reg;
2876 
2877 	rc = readCapabilityRid(ai, &cap_rid, 1);
2878 	if (rc != SUCCESS) {
2879 		rc = -EIO;
2880 		goto err_out_wifi;
2881 	}
2882 	/* WEP capability discovery */
2883 	ai->wep_capable = (cap_rid.softCap & cpu_to_le16(0x02)) ? 1 : 0;
2884 	ai->max_wep_idx = (cap_rid.softCap & cpu_to_le16(0x80)) ? 3 : 0;
2885 
2886 	airo_print_info(dev->name, "Firmware version %x.%x.%02d",
2887 	                ((le16_to_cpu(cap_rid.softVer) >> 8) & 0xF),
2888 	                (le16_to_cpu(cap_rid.softVer) & 0xFF),
2889 	                le16_to_cpu(cap_rid.softSubVer));
2890 
2891 	/* Test for WPA support */
2892 	/* Only firmware versions 5.30.17 or better can do WPA */
2893 	if (le16_to_cpu(cap_rid.softVer) > 0x530
2894 	 || (le16_to_cpu(cap_rid.softVer) == 0x530
2895 	      && le16_to_cpu(cap_rid.softSubVer) >= 17)) {
2896 		airo_print_info(ai->dev->name, "WPA supported.");
2897 
2898 		set_bit(FLAG_WPA_CAPABLE, &ai->flags);
2899 		ai->bssListFirst = RID_WPA_BSSLISTFIRST;
2900 		ai->bssListNext = RID_WPA_BSSLISTNEXT;
2901 		ai->bssListRidLen = sizeof(BSSListRid);
2902 	} else {
2903 		airo_print_info(ai->dev->name, "WPA unsupported with firmware "
2904 			"versions older than 5.30.17.");
2905 
2906 		ai->bssListFirst = RID_BSSLISTFIRST;
2907 		ai->bssListNext = RID_BSSLISTNEXT;
2908 		ai->bssListRidLen = sizeof(BSSListRid) - sizeof(BSSListRidExtra);
2909 	}
2910 
2911 	set_bit(FLAG_REGISTERED,&ai->flags);
2912 	airo_print_info(dev->name, "MAC enabled %pM", dev->dev_addr);
2913 
2914 	/* Allocate the transmit buffers */
2915 	if (probe && !test_bit(FLAG_MPI,&ai->flags))
2916 		for (i = 0; i < MAX_FIDS; i++)
2917 			ai->fids[i] = transmit_allocate(ai, AIRO_DEF_MTU, i>=MAX_FIDS/2);
2918 
2919 	if (setup_proc_entry(dev, dev->ml_priv) < 0)
2920 		goto err_out_wifi;
2921 
2922 	return dev;
2923 
2924 err_out_wifi:
2925 	unregister_netdev(ai->wifidev);
2926 	free_netdev(ai->wifidev);
2927 err_out_reg:
2928 	unregister_netdev(dev);
2929 err_out_map:
2930 	if (test_bit(FLAG_MPI,&ai->flags) && pci) {
2931 		dma_free_coherent(&pci->dev, PCI_SHARED_LEN, ai->shared,
2932 				  ai->shared_dma);
2933 		iounmap(ai->pciaux);
2934 		iounmap(ai->pcimem);
2935 		mpi_unmap_card(ai->pci);
2936 	}
2937 err_out_res:
2938 	if (!is_pcmcia)
2939 		release_region(dev->base_addr, 64);
2940 err_out_nets:
2941 	airo_networks_free(ai);
2942 err_out_free:
2943 	del_airo_dev(ai);
2944 	free_netdev(dev);
2945 	return NULL;
2946 }
2947 
init_airo_card(unsigned short irq,int port,int is_pcmcia,struct device * dmdev)2948 struct net_device *init_airo_card(unsigned short irq, int port, int is_pcmcia,
2949 				  struct device *dmdev)
2950 {
2951 	return _init_airo_card (irq, port, is_pcmcia, NULL, dmdev);
2952 }
2953 
2954 EXPORT_SYMBOL(init_airo_card);
2955 
waitbusy(struct airo_info * ai)2956 static int waitbusy (struct airo_info *ai)
2957 {
2958 	int delay = 0;
2959 	while ((IN4500(ai, COMMAND) & COMMAND_BUSY) && (delay < 10000)) {
2960 		udelay (10);
2961 		if ((++delay % 20) == 0)
2962 			OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
2963 	}
2964 	return delay < 10000;
2965 }
2966 
reset_airo_card(struct net_device * dev)2967 int reset_airo_card(struct net_device *dev)
2968 {
2969 	int i;
2970 	struct airo_info *ai = dev->ml_priv;
2971 
2972 	if (reset_card (dev, 1))
2973 		return -1;
2974 
2975 	if (setup_card(ai, dev, 1) != SUCCESS) {
2976 		airo_print_err(dev->name, "MAC could not be enabled");
2977 		return -1;
2978 	}
2979 	airo_print_info(dev->name, "MAC enabled %pM", dev->dev_addr);
2980 	/* Allocate the transmit buffers if needed */
2981 	if (!test_bit(FLAG_MPI,&ai->flags))
2982 		for (i = 0; i < MAX_FIDS; i++)
2983 			ai->fids[i] = transmit_allocate (ai, AIRO_DEF_MTU, i>=MAX_FIDS/2);
2984 
2985 	enable_interrupts(ai);
2986 	netif_wake_queue(dev);
2987 	return 0;
2988 }
2989 
2990 EXPORT_SYMBOL(reset_airo_card);
2991 
airo_send_event(struct net_device * dev)2992 static void airo_send_event(struct net_device *dev)
2993 {
2994 	struct airo_info *ai = dev->ml_priv;
2995 	union iwreq_data wrqu;
2996 	StatusRid status_rid;
2997 
2998 	clear_bit(JOB_EVENT, &ai->jobs);
2999 	PC4500_readrid(ai, RID_STATUS, &status_rid, sizeof(status_rid), 0);
3000 	up(&ai->sem);
3001 	wrqu.data.length = 0;
3002 	wrqu.data.flags = 0;
3003 	memcpy(wrqu.ap_addr.sa_data, status_rid.bssid[0], ETH_ALEN);
3004 	wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3005 
3006 	/* Send event to user space */
3007 	wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
3008 }
3009 
airo_process_scan_results(struct airo_info * ai)3010 static void airo_process_scan_results (struct airo_info *ai)
3011 {
3012 	union iwreq_data	wrqu;
3013 	BSSListRid bss;
3014 	int rc;
3015 	BSSListElement * loop_net;
3016 	BSSListElement * tmp_net;
3017 
3018 	/* Blow away current list of scan results */
3019 	list_for_each_entry_safe (loop_net, tmp_net, &ai->network_list, list) {
3020 		list_move_tail (&loop_net->list, &ai->network_free_list);
3021 		/* Don't blow away ->list, just BSS data */
3022 		memset (loop_net, 0, sizeof (loop_net->bss));
3023 	}
3024 
3025 	/* Try to read the first entry of the scan result */
3026 	rc = PC4500_readrid(ai, ai->bssListFirst, &bss, ai->bssListRidLen, 0);
3027 	if ((rc) || (bss.index == cpu_to_le16(0xffff))) {
3028 		/* No scan results */
3029 		goto out;
3030 	}
3031 
3032 	/* Read and parse all entries */
3033 	tmp_net = NULL;
3034 	while ((!rc) && (bss.index != cpu_to_le16(0xffff))) {
3035 		/* Grab a network off the free list */
3036 		if (!list_empty(&ai->network_free_list)) {
3037 			tmp_net = list_entry(ai->network_free_list.next,
3038 					    BSSListElement, list);
3039 			list_del(ai->network_free_list.next);
3040 		}
3041 
3042 		if (tmp_net != NULL) {
3043 			memcpy(tmp_net, &bss, sizeof(tmp_net->bss));
3044 			list_add_tail(&tmp_net->list, &ai->network_list);
3045 			tmp_net = NULL;
3046 		}
3047 
3048 		/* Read next entry */
3049 		rc = PC4500_readrid(ai, ai->bssListNext,
3050 				    &bss, ai->bssListRidLen, 0);
3051 	}
3052 
3053 out:
3054 	/* write APList back (we cleared it in airo_set_scan) */
3055 	disable_MAC(ai, 2);
3056 	writeAPListRid(ai, &ai->APList, 0);
3057 	enable_MAC(ai, 0);
3058 
3059 	ai->scan_timeout = 0;
3060 	clear_bit(JOB_SCAN_RESULTS, &ai->jobs);
3061 	up(&ai->sem);
3062 
3063 	/* Send an empty event to user space.
3064 	 * We don't send the received data on
3065 	 * the event because it would require
3066 	 * us to do complex transcoding, and
3067 	 * we want to minimise the work done in
3068 	 * the irq handler. Use a request to
3069 	 * extract the data - Jean II */
3070 	wrqu.data.length = 0;
3071 	wrqu.data.flags = 0;
3072 	wireless_send_event(ai->dev, SIOCGIWSCAN, &wrqu, NULL);
3073 }
3074 
airo_thread(void * data)3075 static int airo_thread(void *data)
3076 {
3077 	struct net_device *dev = data;
3078 	struct airo_info *ai = dev->ml_priv;
3079 	int locked;
3080 
3081 	set_freezable();
3082 	while (1) {
3083 		/* make swsusp happy with our thread */
3084 		try_to_freeze();
3085 
3086 		if (test_bit(JOB_DIE, &ai->jobs))
3087 			break;
3088 
3089 		if (ai->jobs) {
3090 			locked = down_interruptible(&ai->sem);
3091 		} else {
3092 			wait_queue_entry_t wait;
3093 
3094 			init_waitqueue_entry(&wait, current);
3095 			add_wait_queue(&ai->thr_wait, &wait);
3096 			for (;;) {
3097 				set_current_state(TASK_INTERRUPTIBLE);
3098 				if (ai->jobs)
3099 					break;
3100 				if (ai->expires || ai->scan_timeout) {
3101 					if (ai->scan_timeout &&
3102 							time_after_eq(jiffies, ai->scan_timeout)) {
3103 						set_bit(JOB_SCAN_RESULTS, &ai->jobs);
3104 						break;
3105 					} else if (ai->expires &&
3106 							time_after_eq(jiffies, ai->expires)) {
3107 						set_bit(JOB_AUTOWEP, &ai->jobs);
3108 						break;
3109 					}
3110 					if (!kthread_should_stop() &&
3111 					    !freezing(current)) {
3112 						unsigned long wake_at;
3113 						if (!ai->expires || !ai->scan_timeout) {
3114 							wake_at = max(ai->expires,
3115 								ai->scan_timeout);
3116 						} else {
3117 							wake_at = min(ai->expires,
3118 								ai->scan_timeout);
3119 						}
3120 						schedule_timeout(wake_at - jiffies);
3121 						continue;
3122 					}
3123 				} else if (!kthread_should_stop() &&
3124 					   !freezing(current)) {
3125 					schedule();
3126 					continue;
3127 				}
3128 				break;
3129 			}
3130 			__set_current_state(TASK_RUNNING);
3131 			remove_wait_queue(&ai->thr_wait, &wait);
3132 			locked = 1;
3133 		}
3134 
3135 		if (locked)
3136 			continue;
3137 
3138 		if (test_bit(JOB_DIE, &ai->jobs)) {
3139 			up(&ai->sem);
3140 			break;
3141 		}
3142 
3143 		if (ai->power.event || test_bit(FLAG_FLASHING, &ai->flags)) {
3144 			up(&ai->sem);
3145 			continue;
3146 		}
3147 
3148 		if (test_bit(JOB_XMIT, &ai->jobs))
3149 			airo_end_xmit(dev, true);
3150 		else if (test_bit(JOB_XMIT11, &ai->jobs))
3151 			airo_end_xmit11(dev, true);
3152 		else if (test_bit(JOB_STATS, &ai->jobs))
3153 			airo_read_stats(dev);
3154 		else if (test_bit(JOB_PROMISC, &ai->jobs))
3155 			airo_set_promisc(ai, true);
3156 		else if (test_bit(JOB_MIC, &ai->jobs))
3157 			micinit(ai);
3158 		else if (test_bit(JOB_EVENT, &ai->jobs))
3159 			airo_send_event(dev);
3160 		else if (test_bit(JOB_AUTOWEP, &ai->jobs))
3161 			timer_func(dev);
3162 		else if (test_bit(JOB_SCAN_RESULTS, &ai->jobs))
3163 			airo_process_scan_results(ai);
3164 		else  /* Shouldn't get here, but we make sure to unlock */
3165 			up(&ai->sem);
3166 	}
3167 
3168 	return 0;
3169 }
3170 
header_len(__le16 ctl)3171 static int header_len(__le16 ctl)
3172 {
3173 	u16 fc = le16_to_cpu(ctl);
3174 	switch (fc & 0xc) {
3175 	case 4:
3176 		if ((fc & 0xe0) == 0xc0)
3177 			return 10;	/* one-address control packet */
3178 		return 16;	/* two-address control packet */
3179 	case 8:
3180 		if ((fc & 0x300) == 0x300)
3181 			return 30;	/* WDS packet */
3182 	}
3183 	return 24;
3184 }
3185 
airo_handle_cisco_mic(struct airo_info * ai)3186 static void airo_handle_cisco_mic(struct airo_info *ai)
3187 {
3188 	if (test_bit(FLAG_MIC_CAPABLE, &ai->flags)) {
3189 		set_bit(JOB_MIC, &ai->jobs);
3190 		wake_up_interruptible(&ai->thr_wait);
3191 	}
3192 }
3193 
3194 /* Airo Status codes */
3195 #define STAT_NOBEACON	0x8000 /* Loss of sync - missed beacons */
3196 #define STAT_MAXRETRIES	0x8001 /* Loss of sync - max retries */
3197 #define STAT_MAXARL	0x8002 /* Loss of sync - average retry level exceeded*/
3198 #define STAT_FORCELOSS	0x8003 /* Loss of sync - host request */
3199 #define STAT_TSFSYNC	0x8004 /* Loss of sync - TSF synchronization */
3200 #define STAT_DEAUTH	0x8100 /* low byte is 802.11 reason code */
3201 #define STAT_DISASSOC	0x8200 /* low byte is 802.11 reason code */
3202 #define STAT_ASSOC_FAIL	0x8400 /* low byte is 802.11 reason code */
3203 #define STAT_AUTH_FAIL	0x0300 /* low byte is 802.11 reason code */
3204 #define STAT_ASSOC	0x0400 /* Associated */
3205 #define STAT_REASSOC    0x0600 /* Reassociated?  Only on firmware >= 5.30.17 */
3206 
airo_print_status(const char * devname,u16 status)3207 static void airo_print_status(const char *devname, u16 status)
3208 {
3209 	u8 reason = status & 0xFF;
3210 
3211 	switch (status & 0xFF00) {
3212 	case STAT_NOBEACON:
3213 		switch (status) {
3214 		case STAT_NOBEACON:
3215 			airo_print_dbg(devname, "link lost (missed beacons)");
3216 			break;
3217 		case STAT_MAXRETRIES:
3218 		case STAT_MAXARL:
3219 			airo_print_dbg(devname, "link lost (max retries)");
3220 			break;
3221 		case STAT_FORCELOSS:
3222 			airo_print_dbg(devname, "link lost (local choice)");
3223 			break;
3224 		case STAT_TSFSYNC:
3225 			airo_print_dbg(devname, "link lost (TSF sync lost)");
3226 			break;
3227 		default:
3228 			airo_print_dbg(devname, "unknown status %x\n", status);
3229 			break;
3230 		}
3231 		break;
3232 	case STAT_DEAUTH:
3233 		airo_print_dbg(devname, "deauthenticated (reason: %d)", reason);
3234 		break;
3235 	case STAT_DISASSOC:
3236 		airo_print_dbg(devname, "disassociated (reason: %d)", reason);
3237 		break;
3238 	case STAT_ASSOC_FAIL:
3239 		airo_print_dbg(devname, "association failed (reason: %d)",
3240 			       reason);
3241 		break;
3242 	case STAT_AUTH_FAIL:
3243 		airo_print_dbg(devname, "authentication failed (reason: %d)",
3244 			       reason);
3245 		break;
3246 	case STAT_ASSOC:
3247 	case STAT_REASSOC:
3248 		break;
3249 	default:
3250 		airo_print_dbg(devname, "unknown status %x\n", status);
3251 		break;
3252 	}
3253 }
3254 
airo_handle_link(struct airo_info * ai)3255 static void airo_handle_link(struct airo_info *ai)
3256 {
3257 	union iwreq_data wrqu;
3258 	int scan_forceloss = 0;
3259 	u16 status;
3260 
3261 	/* Get new status and acknowledge the link change */
3262 	status = le16_to_cpu(IN4500(ai, LINKSTAT));
3263 	OUT4500(ai, EVACK, EV_LINK);
3264 
3265 	if ((status == STAT_FORCELOSS) && (ai->scan_timeout > 0))
3266 		scan_forceloss = 1;
3267 
3268 	airo_print_status(ai->dev->name, status);
3269 
3270 	if ((status == STAT_ASSOC) || (status == STAT_REASSOC)) {
3271 		if (auto_wep)
3272 			ai->expires = 0;
3273 		if (ai->list_bss_task)
3274 			wake_up_process(ai->list_bss_task);
3275 		set_bit(FLAG_UPDATE_UNI, &ai->flags);
3276 		set_bit(FLAG_UPDATE_MULTI, &ai->flags);
3277 
3278 		set_bit(JOB_EVENT, &ai->jobs);
3279 		wake_up_interruptible(&ai->thr_wait);
3280 
3281 		netif_carrier_on(ai->dev);
3282 	} else if (!scan_forceloss) {
3283 		if (auto_wep && !ai->expires) {
3284 			ai->expires = RUN_AT(3*HZ);
3285 			wake_up_interruptible(&ai->thr_wait);
3286 		}
3287 
3288 		/* Send event to user space */
3289 		eth_zero_addr(wrqu.ap_addr.sa_data);
3290 		wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3291 		wireless_send_event(ai->dev, SIOCGIWAP, &wrqu, NULL);
3292 		netif_carrier_off(ai->dev);
3293 	} else {
3294 		netif_carrier_off(ai->dev);
3295 	}
3296 }
3297 
airo_handle_rx(struct airo_info * ai)3298 static void airo_handle_rx(struct airo_info *ai)
3299 {
3300 	struct sk_buff *skb = NULL;
3301 	__le16 fc, v, *buffer, tmpbuf[4];
3302 	u16 len, hdrlen = 0, gap, fid;
3303 	struct rx_hdr hdr;
3304 	int success = 0;
3305 
3306 	if (test_bit(FLAG_MPI, &ai->flags)) {
3307 		if (test_bit(FLAG_802_11, &ai->flags))
3308 			mpi_receive_802_11(ai);
3309 		else
3310 			mpi_receive_802_3(ai);
3311 		OUT4500(ai, EVACK, EV_RX);
3312 		return;
3313 	}
3314 
3315 	fid = IN4500(ai, RXFID);
3316 
3317 	/* Get the packet length */
3318 	if (test_bit(FLAG_802_11, &ai->flags)) {
3319 		bap_setup (ai, fid, 4, BAP0);
3320 		bap_read (ai, (__le16*)&hdr, sizeof(hdr), BAP0);
3321 		/* Bad CRC. Ignore packet */
3322 		if (le16_to_cpu(hdr.status) & 2)
3323 			hdr.len = 0;
3324 		if (ai->wifidev == NULL)
3325 			hdr.len = 0;
3326 	} else {
3327 		bap_setup(ai, fid, 0x36, BAP0);
3328 		bap_read(ai, &hdr.len, 2, BAP0);
3329 	}
3330 	len = le16_to_cpu(hdr.len);
3331 
3332 	if (len > AIRO_DEF_MTU) {
3333 		airo_print_err(ai->dev->name, "Bad size %d", len);
3334 		goto done;
3335 	}
3336 	if (len == 0)
3337 		goto done;
3338 
3339 	if (test_bit(FLAG_802_11, &ai->flags)) {
3340 		bap_read(ai, &fc, sizeof (fc), BAP0);
3341 		hdrlen = header_len(fc);
3342 	} else
3343 		hdrlen = ETH_ALEN * 2;
3344 
3345 	skb = dev_alloc_skb(len + hdrlen + 2 + 2);
3346 	if (!skb) {
3347 		ai->dev->stats.rx_dropped++;
3348 		goto done;
3349 	}
3350 
3351 	skb_reserve(skb, 2); /* This way the IP header is aligned */
3352 	buffer = skb_put(skb, len + hdrlen);
3353 	if (test_bit(FLAG_802_11, &ai->flags)) {
3354 		buffer[0] = fc;
3355 		bap_read(ai, buffer + 1, hdrlen - 2, BAP0);
3356 		if (hdrlen == 24)
3357 			bap_read(ai, tmpbuf, 6, BAP0);
3358 
3359 		bap_read(ai, &v, sizeof(v), BAP0);
3360 		gap = le16_to_cpu(v);
3361 		if (gap) {
3362 			if (gap <= 8) {
3363 				bap_read(ai, tmpbuf, gap, BAP0);
3364 			} else {
3365 				airo_print_err(ai->dev->name, "gaplen too "
3366 					"big. Problems will follow...");
3367 			}
3368 		}
3369 		bap_read(ai, buffer + hdrlen/2, len, BAP0);
3370 	} else {
3371 		MICBuffer micbuf;
3372 
3373 		bap_read(ai, buffer, ETH_ALEN * 2, BAP0);
3374 		if (ai->micstats.enabled) {
3375 			bap_read(ai, (__le16 *) &micbuf, sizeof (micbuf), BAP0);
3376 			if (ntohs(micbuf.typelen) > 0x05DC)
3377 				bap_setup(ai, fid, 0x44, BAP0);
3378 			else {
3379 				if (len <= sizeof (micbuf)) {
3380 					dev_kfree_skb_irq(skb);
3381 					goto done;
3382 				}
3383 
3384 				len -= sizeof(micbuf);
3385 				skb_trim(skb, len + hdrlen);
3386 			}
3387 		}
3388 
3389 		bap_read(ai, buffer + ETH_ALEN, len, BAP0);
3390 		if (decapsulate(ai, &micbuf, (etherHead*) buffer, len))
3391 			dev_kfree_skb_irq (skb);
3392 		else
3393 			success = 1;
3394 	}
3395 
3396 #ifdef WIRELESS_SPY
3397 	if (success && (ai->spy_data.spy_number > 0)) {
3398 		char *sa;
3399 		struct iw_quality wstats;
3400 
3401 		/* Prepare spy data : addr + qual */
3402 		if (!test_bit(FLAG_802_11, &ai->flags)) {
3403 			sa = (char *) buffer + 6;
3404 			bap_setup(ai, fid, 8, BAP0);
3405 			bap_read(ai, (__le16 *) hdr.rssi, 2, BAP0);
3406 		} else
3407 			sa = (char *) buffer + 10;
3408 		wstats.qual = hdr.rssi[0];
3409 		if (ai->rssi)
3410 			wstats.level = 0x100 - ai->rssi[hdr.rssi[1]].rssidBm;
3411 		else
3412 			wstats.level = (hdr.rssi[1] + 321) / 2;
3413 		wstats.noise = ai->wstats.qual.noise;
3414 		wstats.updated =  IW_QUAL_LEVEL_UPDATED
3415 				| IW_QUAL_QUAL_UPDATED
3416 				| IW_QUAL_DBM;
3417 		/* Update spy records */
3418 		wireless_spy_update(ai->dev, sa, &wstats);
3419 	}
3420 #endif /* WIRELESS_SPY */
3421 
3422 done:
3423 	OUT4500(ai, EVACK, EV_RX);
3424 
3425 	if (success) {
3426 		if (test_bit(FLAG_802_11, &ai->flags)) {
3427 			skb_reset_mac_header(skb);
3428 			skb->pkt_type = PACKET_OTHERHOST;
3429 			skb->dev = ai->wifidev;
3430 			skb->protocol = htons(ETH_P_802_2);
3431 		} else
3432 			skb->protocol = eth_type_trans(skb, ai->dev);
3433 		skb->ip_summed = CHECKSUM_NONE;
3434 
3435 		netif_rx(skb);
3436 	}
3437 }
3438 
airo_handle_tx(struct airo_info * ai,u16 status)3439 static void airo_handle_tx(struct airo_info *ai, u16 status)
3440 {
3441 	int i, index = -1;
3442 	u16 fid;
3443 
3444 	if (test_bit(FLAG_MPI, &ai->flags)) {
3445 		unsigned long flags;
3446 
3447 		if (status & EV_TXEXC)
3448 			get_tx_error(ai, -1);
3449 
3450 		spin_lock_irqsave(&ai->aux_lock, flags);
3451 		if (!skb_queue_empty(&ai->txq)) {
3452 			spin_unlock_irqrestore(&ai->aux_lock, flags);
3453 			mpi_send_packet(ai->dev);
3454 		} else {
3455 			clear_bit(FLAG_PENDING_XMIT, &ai->flags);
3456 			spin_unlock_irqrestore(&ai->aux_lock, flags);
3457 			netif_wake_queue(ai->dev);
3458 		}
3459 		OUT4500(ai, EVACK, status & (EV_TX | EV_TXCPY | EV_TXEXC));
3460 		return;
3461 	}
3462 
3463 	fid = IN4500(ai, TXCOMPLFID);
3464 
3465 	for (i = 0; i < MAX_FIDS; i++) {
3466 		if ((ai->fids[i] & 0xffff) == fid)
3467 			index = i;
3468 	}
3469 
3470 	if (index != -1) {
3471 		if (status & EV_TXEXC)
3472 			get_tx_error(ai, index);
3473 
3474 		OUT4500(ai, EVACK, status & (EV_TX | EV_TXEXC));
3475 
3476 		/* Set up to be used again */
3477 		ai->fids[index] &= 0xffff;
3478 		if (index < MAX_FIDS / 2) {
3479 			if (!test_bit(FLAG_PENDING_XMIT, &ai->flags))
3480 				netif_wake_queue(ai->dev);
3481 		} else {
3482 			if (!test_bit(FLAG_PENDING_XMIT11, &ai->flags))
3483 				netif_wake_queue(ai->wifidev);
3484 		}
3485 	} else {
3486 		OUT4500(ai, EVACK, status & (EV_TX | EV_TXCPY | EV_TXEXC));
3487 		airo_print_err(ai->dev->name, "Unallocated FID was used to xmit");
3488 	}
3489 }
3490 
airo_interrupt(int irq,void * dev_id)3491 static irqreturn_t airo_interrupt(int irq, void *dev_id)
3492 {
3493 	struct net_device *dev = dev_id;
3494 	u16 status, savedInterrupts = 0;
3495 	struct airo_info *ai = dev->ml_priv;
3496 	int handled = 0;
3497 
3498 	if (!netif_device_present(dev))
3499 		return IRQ_NONE;
3500 
3501 	for (;;) {
3502 		status = IN4500(ai, EVSTAT);
3503 		if (!(status & STATUS_INTS) || (status == 0xffff))
3504 			break;
3505 
3506 		handled = 1;
3507 
3508 		if (status & EV_AWAKE) {
3509 			OUT4500(ai, EVACK, EV_AWAKE);
3510 			OUT4500(ai, EVACK, EV_AWAKE);
3511 		}
3512 
3513 		if (!savedInterrupts) {
3514 			savedInterrupts = IN4500(ai, EVINTEN);
3515 			OUT4500(ai, EVINTEN, 0);
3516 		}
3517 
3518 		if (status & EV_MIC) {
3519 			OUT4500(ai, EVACK, EV_MIC);
3520 			airo_handle_cisco_mic(ai);
3521 		}
3522 
3523 		if (status & EV_LINK) {
3524 			/* Link status changed */
3525 			airo_handle_link(ai);
3526 		}
3527 
3528 		/* Check to see if there is something to receive */
3529 		if (status & EV_RX)
3530 			airo_handle_rx(ai);
3531 
3532 		/* Check to see if a packet has been transmitted */
3533 		if (status & (EV_TX | EV_TXCPY | EV_TXEXC))
3534 			airo_handle_tx(ai, status);
3535 
3536 		if (status & ~STATUS_INTS & ~IGNORE_INTS) {
3537 			airo_print_warn(ai->dev->name, "Got weird status %x",
3538 				status & ~STATUS_INTS & ~IGNORE_INTS);
3539 		}
3540 	}
3541 
3542 	if (savedInterrupts)
3543 		OUT4500(ai, EVINTEN, savedInterrupts);
3544 
3545 	return IRQ_RETVAL(handled);
3546 }
3547 
3548 /*
3549  *  Routines to talk to the card
3550  */
3551 
3552 /*
3553  *  This was originally written for the 4500, hence the name
3554  *  NOTE:  If use with 8bit mode and SMP bad things will happen!
3555  *         Why would some one do 8 bit IO in an SMP machine?!?
3556  */
OUT4500(struct airo_info * ai,u16 reg,u16 val)3557 static void OUT4500(struct airo_info *ai, u16 reg, u16 val)
3558 {
3559 	if (test_bit(FLAG_MPI,&ai->flags))
3560 		reg <<= 1;
3561 	if (!do8bitIO)
3562 		outw(val, ai->dev->base_addr + reg);
3563 	else {
3564 		outb(val & 0xff, ai->dev->base_addr + reg);
3565 		outb(val >> 8, ai->dev->base_addr + reg + 1);
3566 	}
3567 }
3568 
IN4500(struct airo_info * ai,u16 reg)3569 static u16 IN4500(struct airo_info *ai, u16 reg)
3570 {
3571 	unsigned short rc;
3572 
3573 	if (test_bit(FLAG_MPI,&ai->flags))
3574 		reg <<= 1;
3575 	if (!do8bitIO)
3576 		rc = inw(ai->dev->base_addr + reg);
3577 	else {
3578 		rc = inb(ai->dev->base_addr + reg);
3579 		rc += ((int)inb(ai->dev->base_addr + reg + 1)) << 8;
3580 	}
3581 	return rc;
3582 }
3583 
enable_MAC(struct airo_info * ai,int lock)3584 static int enable_MAC(struct airo_info *ai, int lock)
3585 {
3586 	int rc;
3587 	Cmd cmd;
3588 	Resp rsp;
3589 
3590 	/* FLAG_RADIO_OFF : Radio disabled via /proc or Wireless Extensions
3591 	 * FLAG_RADIO_DOWN : Radio disabled via "ifconfig ethX down"
3592 	 * Note : we could try to use !netif_running(dev) in enable_MAC()
3593 	 * instead of this flag, but I don't trust it *within* the
3594 	 * open/close functions, and testing both flags together is
3595 	 * "cheaper" - Jean II */
3596 	if (ai->flags & FLAG_RADIO_MASK) return SUCCESS;
3597 
3598 	if (lock && down_interruptible(&ai->sem))
3599 		return -ERESTARTSYS;
3600 
3601 	if (!test_bit(FLAG_ENABLED, &ai->flags)) {
3602 		memset(&cmd, 0, sizeof(cmd));
3603 		cmd.cmd = MAC_ENABLE;
3604 		rc = issuecommand(ai, &cmd, &rsp, true);
3605 		if (rc == SUCCESS)
3606 			set_bit(FLAG_ENABLED, &ai->flags);
3607 	} else
3608 		rc = SUCCESS;
3609 
3610 	if (lock)
3611 	    up(&ai->sem);
3612 
3613 	if (rc)
3614 		airo_print_err(ai->dev->name, "Cannot enable MAC");
3615 	else if ((rsp.status & 0xFF00) != 0) {
3616 		airo_print_err(ai->dev->name, "Bad MAC enable reason=%x, "
3617 			"rid=%x, offset=%d", rsp.rsp0, rsp.rsp1, rsp.rsp2);
3618 		rc = ERROR;
3619 	}
3620 	return rc;
3621 }
3622 
disable_MAC(struct airo_info * ai,int lock)3623 static void disable_MAC(struct airo_info *ai, int lock)
3624 {
3625         Cmd cmd;
3626 	Resp rsp;
3627 
3628 	if (lock == 1 && down_interruptible(&ai->sem))
3629 		return;
3630 
3631 	if (test_bit(FLAG_ENABLED, &ai->flags)) {
3632 		if (lock != 2) /* lock == 2 means don't disable carrier */
3633 			netif_carrier_off(ai->dev);
3634 		memset(&cmd, 0, sizeof(cmd));
3635 		cmd.cmd = MAC_DISABLE; // disable in case already enabled
3636 		issuecommand(ai, &cmd, &rsp, true);
3637 		clear_bit(FLAG_ENABLED, &ai->flags);
3638 	}
3639 	if (lock == 1)
3640 		up(&ai->sem);
3641 }
3642 
enable_interrupts(struct airo_info * ai)3643 static void enable_interrupts(struct airo_info *ai)
3644 {
3645 	/* Enable the interrupts */
3646 	OUT4500(ai, EVINTEN, STATUS_INTS);
3647 }
3648 
disable_interrupts(struct airo_info * ai)3649 static void disable_interrupts(struct airo_info *ai)
3650 {
3651 	OUT4500(ai, EVINTEN, 0);
3652 }
3653 
mpi_receive_802_3(struct airo_info * ai)3654 static void mpi_receive_802_3(struct airo_info *ai)
3655 {
3656 	RxFid rxd;
3657 	int len = 0;
3658 	struct sk_buff *skb;
3659 	char *buffer;
3660 	int off = 0;
3661 	MICBuffer micbuf;
3662 
3663 	memcpy_fromio(&rxd, ai->rxfids[0].card_ram_off, sizeof(rxd));
3664 	/* Make sure we got something */
3665 	if (rxd.rdy && rxd.valid == 0) {
3666 		len = rxd.len + 12;
3667 		if (len < 12 || len > 2048)
3668 			goto badrx;
3669 
3670 		skb = dev_alloc_skb(len);
3671 		if (!skb) {
3672 			ai->dev->stats.rx_dropped++;
3673 			goto badrx;
3674 		}
3675 		buffer = skb_put(skb, len);
3676 		memcpy(buffer, ai->rxfids[0].virtual_host_addr, ETH_ALEN * 2);
3677 		if (ai->micstats.enabled) {
3678 			memcpy(&micbuf,
3679 				ai->rxfids[0].virtual_host_addr + ETH_ALEN * 2,
3680 				sizeof(micbuf));
3681 			if (ntohs(micbuf.typelen) <= 0x05DC) {
3682 				if (len <= sizeof(micbuf) + ETH_ALEN * 2)
3683 					goto badmic;
3684 
3685 				off = sizeof(micbuf);
3686 				skb_trim (skb, len - off);
3687 			}
3688 		}
3689 		memcpy(buffer + ETH_ALEN * 2,
3690 			ai->rxfids[0].virtual_host_addr + ETH_ALEN * 2 + off,
3691 			len - ETH_ALEN * 2 - off);
3692 		if (decapsulate (ai, &micbuf, (etherHead*)buffer, len - off - ETH_ALEN * 2)) {
3693 badmic:
3694 			dev_kfree_skb_irq (skb);
3695 			goto badrx;
3696 		}
3697 #ifdef WIRELESS_SPY
3698 		if (ai->spy_data.spy_number > 0) {
3699 			char *sa;
3700 			struct iw_quality wstats;
3701 			/* Prepare spy data : addr + qual */
3702 			sa = buffer + ETH_ALEN;
3703 			wstats.qual = 0; /* XXX Where do I get that info from ??? */
3704 			wstats.level = 0;
3705 			wstats.updated = 0;
3706 			/* Update spy records */
3707 			wireless_spy_update(ai->dev, sa, &wstats);
3708 		}
3709 #endif /* WIRELESS_SPY */
3710 
3711 		skb->ip_summed = CHECKSUM_NONE;
3712 		skb->protocol = eth_type_trans(skb, ai->dev);
3713 		netif_rx(skb);
3714 	}
3715 badrx:
3716 	if (rxd.valid == 0) {
3717 		rxd.valid = 1;
3718 		rxd.rdy = 0;
3719 		rxd.len = PKTSIZE;
3720 		memcpy_toio(ai->rxfids[0].card_ram_off, &rxd, sizeof(rxd));
3721 	}
3722 }
3723 
mpi_receive_802_11(struct airo_info * ai)3724 static void mpi_receive_802_11(struct airo_info *ai)
3725 {
3726 	RxFid rxd;
3727 	struct sk_buff *skb = NULL;
3728 	u16 len, hdrlen = 0;
3729 	__le16 fc;
3730 	struct rx_hdr hdr;
3731 	u16 gap;
3732 	u16 *buffer;
3733 	char *ptr = ai->rxfids[0].virtual_host_addr + 4;
3734 
3735 	memcpy_fromio(&rxd, ai->rxfids[0].card_ram_off, sizeof(rxd));
3736 	memcpy ((char *)&hdr, ptr, sizeof(hdr));
3737 	ptr += sizeof(hdr);
3738 	/* Bad CRC. Ignore packet */
3739 	if (le16_to_cpu(hdr.status) & 2)
3740 		hdr.len = 0;
3741 	if (ai->wifidev == NULL)
3742 		hdr.len = 0;
3743 	len = le16_to_cpu(hdr.len);
3744 	if (len > AIRO_DEF_MTU) {
3745 		airo_print_err(ai->dev->name, "Bad size %d", len);
3746 		goto badrx;
3747 	}
3748 	if (len == 0)
3749 		goto badrx;
3750 
3751 	fc = get_unaligned((__le16 *)ptr);
3752 	hdrlen = header_len(fc);
3753 
3754 	skb = dev_alloc_skb(len + hdrlen + 2);
3755 	if (!skb) {
3756 		ai->dev->stats.rx_dropped++;
3757 		goto badrx;
3758 	}
3759 	buffer = skb_put(skb, len + hdrlen);
3760 	memcpy ((char *)buffer, ptr, hdrlen);
3761 	ptr += hdrlen;
3762 	if (hdrlen == 24)
3763 		ptr += 6;
3764 	gap = get_unaligned_le16(ptr);
3765 	ptr += sizeof(__le16);
3766 	if (gap) {
3767 		if (gap <= 8)
3768 			ptr += gap;
3769 		else
3770 			airo_print_err(ai->dev->name,
3771 			    "gaplen too big. Problems will follow...");
3772 	}
3773 	memcpy ((char *)buffer + hdrlen, ptr, len);
3774 	ptr += len;
3775 #ifdef IW_WIRELESS_SPY	  /* defined in iw_handler.h */
3776 	if (ai->spy_data.spy_number > 0) {
3777 		char *sa;
3778 		struct iw_quality wstats;
3779 		/* Prepare spy data : addr + qual */
3780 		sa = (char*)buffer + 10;
3781 		wstats.qual = hdr.rssi[0];
3782 		if (ai->rssi)
3783 			wstats.level = 0x100 - ai->rssi[hdr.rssi[1]].rssidBm;
3784 		else
3785 			wstats.level = (hdr.rssi[1] + 321) / 2;
3786 		wstats.noise = ai->wstats.qual.noise;
3787 		wstats.updated = IW_QUAL_QUAL_UPDATED
3788 			| IW_QUAL_LEVEL_UPDATED
3789 			| IW_QUAL_DBM;
3790 		/* Update spy records */
3791 		wireless_spy_update(ai->dev, sa, &wstats);
3792 	}
3793 #endif /* IW_WIRELESS_SPY */
3794 	skb_reset_mac_header(skb);
3795 	skb->pkt_type = PACKET_OTHERHOST;
3796 	skb->dev = ai->wifidev;
3797 	skb->protocol = htons(ETH_P_802_2);
3798 	skb->ip_summed = CHECKSUM_NONE;
3799 	netif_rx(skb);
3800 
3801 badrx:
3802 	if (rxd.valid == 0) {
3803 		rxd.valid = 1;
3804 		rxd.rdy = 0;
3805 		rxd.len = PKTSIZE;
3806 		memcpy_toio(ai->rxfids[0].card_ram_off, &rxd, sizeof(rxd));
3807 	}
3808 }
3809 
set_auth_type(struct airo_info * local,int auth_type)3810 static inline void set_auth_type(struct airo_info *local, int auth_type)
3811 {
3812 	local->config.authType = auth_type;
3813 	/* Cache the last auth type used (of AUTH_OPEN and AUTH_ENCRYPT).
3814 	 * Used by airo_set_auth()
3815 	 */
3816 	if (auth_type == AUTH_OPEN || auth_type == AUTH_ENCRYPT)
3817 		local->last_auth = auth_type;
3818 }
3819 
airo_readconfig(struct airo_info * ai,struct net_device * dev,int lock)3820 static int noinline_for_stack airo_readconfig(struct airo_info *ai,
3821 					      struct net_device *dev, int lock)
3822 {
3823 	int i, status;
3824 	/* large variables, so don't inline this function,
3825 	 * maybe change to kmalloc
3826 	 */
3827 	tdsRssiRid rssi_rid;
3828 	CapabilityRid cap_rid;
3829 
3830 	kfree(ai->SSID);
3831 	ai->SSID = NULL;
3832 	// general configuration (read/modify/write)
3833 	status = readConfigRid(ai, lock);
3834 	if (status != SUCCESS) return ERROR;
3835 
3836 	status = readCapabilityRid(ai, &cap_rid, lock);
3837 	if (status != SUCCESS) return ERROR;
3838 
3839 	status = PC4500_readrid(ai, RID_RSSI, &rssi_rid, sizeof(rssi_rid), lock);
3840 	if (status == SUCCESS) {
3841 		if (ai->rssi || (ai->rssi = kmalloc(512, GFP_KERNEL)) != NULL)
3842 			memcpy(ai->rssi, (u8*)&rssi_rid + 2, 512); /* Skip RID length member */
3843 	}
3844 	else {
3845 		kfree(ai->rssi);
3846 		ai->rssi = NULL;
3847 		if (cap_rid.softCap & cpu_to_le16(8))
3848 			ai->config.rmode |= RXMODE_NORMALIZED_RSSI;
3849 		else
3850 			airo_print_warn(ai->dev->name, "unknown received signal "
3851 					"level scale");
3852 	}
3853 	ai->config.opmode = adhoc ? MODE_STA_IBSS : MODE_STA_ESS;
3854 	set_auth_type(ai, AUTH_OPEN);
3855 	ai->config.modulation = MOD_CCK;
3856 
3857 	if (le16_to_cpu(cap_rid.len) >= sizeof(cap_rid) &&
3858 	    (cap_rid.extSoftCap & cpu_to_le16(1)) &&
3859 	    micsetup(ai) == SUCCESS) {
3860 		ai->config.opmode |= MODE_MIC;
3861 		set_bit(FLAG_MIC_CAPABLE, &ai->flags);
3862 	}
3863 
3864 	/* Save off the MAC */
3865 	eth_hw_addr_set(dev, ai->config.macAddr);
3866 
3867 	/* Check to see if there are any insmod configured
3868 	   rates to add */
3869 	if (rates[0]) {
3870 		memset(ai->config.rates, 0, sizeof(ai->config.rates));
3871 		for (i = 0; i < 8 && rates[i]; i++) {
3872 			ai->config.rates[i] = rates[i];
3873 		}
3874 	}
3875 	set_bit (FLAG_COMMIT, &ai->flags);
3876 
3877 	return SUCCESS;
3878 }
3879 
3880 
setup_card(struct airo_info * ai,struct net_device * dev,int lock)3881 static u16 setup_card(struct airo_info *ai, struct net_device *dev, int lock)
3882 {
3883 	Cmd cmd;
3884 	Resp rsp;
3885 	int status;
3886 	SsidRid mySsid;
3887 	__le16 lastindex;
3888 	WepKeyRid wkr;
3889 	int rc;
3890 
3891 	memset(&mySsid, 0, sizeof(mySsid));
3892 	kfree (ai->flash);
3893 	ai->flash = NULL;
3894 
3895 	/* The NOP is the first step in getting the card going */
3896 	cmd.cmd = NOP;
3897 	cmd.parm0 = cmd.parm1 = cmd.parm2 = 0;
3898 	if (lock && down_interruptible(&ai->sem))
3899 		return ERROR;
3900 	if (issuecommand(ai, &cmd, &rsp, true) != SUCCESS) {
3901 		if (lock)
3902 			up(&ai->sem);
3903 		return ERROR;
3904 	}
3905 	disable_MAC(ai, 0);
3906 
3907 	// Let's figure out if we need to use the AUX port
3908 	if (!test_bit(FLAG_MPI,&ai->flags)) {
3909 		cmd.cmd = CMD_ENABLEAUX;
3910 		if (issuecommand(ai, &cmd, &rsp, true) != SUCCESS) {
3911 			if (lock)
3912 				up(&ai->sem);
3913 			airo_print_err(ai->dev->name, "Error checking for AUX port");
3914 			return ERROR;
3915 		}
3916 		if (!aux_bap || rsp.status & 0xff00) {
3917 			ai->bap_read = fast_bap_read;
3918 			airo_print_dbg(ai->dev->name, "Doing fast bap_reads");
3919 		} else {
3920 			ai->bap_read = aux_bap_read;
3921 			airo_print_dbg(ai->dev->name, "Doing AUX bap_reads");
3922 		}
3923 	}
3924 	if (lock)
3925 		up(&ai->sem);
3926 	if (ai->config.len == 0) {
3927 		status = airo_readconfig(ai, dev, lock);
3928 		if (status != SUCCESS)
3929 			return ERROR;
3930 	}
3931 
3932 	/* Setup the SSIDs if present */
3933 	if (ssids[0]) {
3934 		int i;
3935 		for (i = 0; i < 3 && ssids[i]; i++) {
3936 			size_t len = strlen(ssids[i]);
3937 			if (len > 32)
3938 				len = 32;
3939 			mySsid.ssids[i].len = cpu_to_le16(len);
3940 			memcpy(mySsid.ssids[i].ssid, ssids[i], len);
3941 		}
3942 		mySsid.len = cpu_to_le16(sizeof(mySsid));
3943 	}
3944 
3945 	status = writeConfigRid(ai, lock);
3946 	if (status != SUCCESS) return ERROR;
3947 
3948 	/* Set up the SSID list */
3949 	if (ssids[0]) {
3950 		status = writeSsidRid(ai, &mySsid, lock);
3951 		if (status != SUCCESS) return ERROR;
3952 	}
3953 
3954 	status = enable_MAC(ai, lock);
3955 	if (status != SUCCESS)
3956 		return ERROR;
3957 
3958 	/* Grab the initial wep key, we gotta save it for auto_wep */
3959 	rc = readWepKeyRid(ai, &wkr, 1, lock);
3960 	if (rc == SUCCESS) do {
3961 		lastindex = wkr.kindex;
3962 		if (wkr.kindex == cpu_to_le16(0xffff)) {
3963 			ai->defindex = wkr.mac[0];
3964 		}
3965 		rc = readWepKeyRid(ai, &wkr, 0, lock);
3966 	} while (lastindex != wkr.kindex);
3967 
3968 	try_auto_wep(ai);
3969 
3970 	return SUCCESS;
3971 }
3972 
issuecommand(struct airo_info * ai,Cmd * pCmd,Resp * pRsp,bool may_sleep)3973 static u16 issuecommand(struct airo_info *ai, Cmd *pCmd, Resp *pRsp,
3974 			bool may_sleep)
3975 {
3976         // Im really paranoid about letting it run forever!
3977 	int max_tries = 600000;
3978 
3979 	if (IN4500(ai, EVSTAT) & EV_CMD)
3980 		OUT4500(ai, EVACK, EV_CMD);
3981 
3982 	OUT4500(ai, PARAM0, pCmd->parm0);
3983 	OUT4500(ai, PARAM1, pCmd->parm1);
3984 	OUT4500(ai, PARAM2, pCmd->parm2);
3985 	OUT4500(ai, COMMAND, pCmd->cmd);
3986 
3987 	while (max_tries-- && (IN4500(ai, EVSTAT) & EV_CMD) == 0) {
3988 		if ((IN4500(ai, COMMAND)) == pCmd->cmd)
3989 			// PC4500 didn't notice command, try again
3990 			OUT4500(ai, COMMAND, pCmd->cmd);
3991 		if (may_sleep && (max_tries & 255) == 0)
3992 			cond_resched();
3993 	}
3994 
3995 	if (max_tries == -1) {
3996 		airo_print_err(ai->dev->name,
3997 			"Max tries exceeded when issuing command");
3998 		if (IN4500(ai, COMMAND) & COMMAND_BUSY)
3999 			OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
4000 		return ERROR;
4001 	}
4002 
4003 	// command completed
4004 	pRsp->status = IN4500(ai, STATUS);
4005 	pRsp->rsp0 = IN4500(ai, RESP0);
4006 	pRsp->rsp1 = IN4500(ai, RESP1);
4007 	pRsp->rsp2 = IN4500(ai, RESP2);
4008 	if ((pRsp->status & 0xff00)!=0 && pCmd->cmd != CMD_SOFTRESET)
4009 		airo_print_err(ai->dev->name,
4010 			"cmd:%x status:%x rsp0:%x rsp1:%x rsp2:%x",
4011 			pCmd->cmd, pRsp->status, pRsp->rsp0, pRsp->rsp1,
4012 			pRsp->rsp2);
4013 
4014 	// clear stuck command busy if necessary
4015 	if (IN4500(ai, COMMAND) & COMMAND_BUSY) {
4016 		OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
4017 	}
4018 	// acknowledge processing the status/response
4019 	OUT4500(ai, EVACK, EV_CMD);
4020 
4021 	return SUCCESS;
4022 }
4023 
4024 /* Sets up the bap to start exchange data.  whichbap should
4025  * be one of the BAP0 or BAP1 defines.  Locks should be held before
4026  * calling! */
bap_setup(struct airo_info * ai,u16 rid,u16 offset,int whichbap)4027 static int bap_setup(struct airo_info *ai, u16 rid, u16 offset, int whichbap)
4028 {
4029 	int timeout = 50;
4030 	int max_tries = 3;
4031 
4032 	OUT4500(ai, SELECT0+whichbap, rid);
4033 	OUT4500(ai, OFFSET0+whichbap, offset);
4034 	while (1) {
4035 		int status = IN4500(ai, OFFSET0+whichbap);
4036 		if (status & BAP_BUSY) {
4037                         /* This isn't really a timeout, but its kinda
4038 			   close */
4039 			if (timeout--) {
4040 				continue;
4041 			}
4042 		} else if (status & BAP_ERR) {
4043 			/* invalid rid or offset */
4044 			airo_print_err(ai->dev->name, "BAP error %x %d",
4045 				status, whichbap);
4046 			return ERROR;
4047 		} else if (status & BAP_DONE) { // success
4048 			return SUCCESS;
4049 		}
4050 		if (!(max_tries--)) {
4051 			airo_print_err(ai->dev->name,
4052 				"BAP setup error too many retries\n");
4053 			return ERROR;
4054 		}
4055 		// -- PC4500 missed it, try again
4056 		OUT4500(ai, SELECT0+whichbap, rid);
4057 		OUT4500(ai, OFFSET0+whichbap, offset);
4058 		timeout = 50;
4059 	}
4060 }
4061 
4062 /* should only be called by aux_bap_read.  This aux function and the
4063    following use concepts not documented in the developers guide.  I
4064    got them from a patch given to my by Aironet */
aux_setup(struct airo_info * ai,u16 page,u16 offset,u16 * len)4065 static u16 aux_setup(struct airo_info *ai, u16 page,
4066 		     u16 offset, u16 *len)
4067 {
4068 	u16 next;
4069 
4070 	OUT4500(ai, AUXPAGE, page);
4071 	OUT4500(ai, AUXOFF, 0);
4072 	next = IN4500(ai, AUXDATA);
4073 	*len = IN4500(ai, AUXDATA)&0xff;
4074 	if (offset != 4) OUT4500(ai, AUXOFF, offset);
4075 	return next;
4076 }
4077 
4078 /* requires call to bap_setup() first */
aux_bap_read(struct airo_info * ai,__le16 * pu16Dst,int bytelen,int whichbap)4079 static int aux_bap_read(struct airo_info *ai, __le16 *pu16Dst,
4080 			int bytelen, int whichbap)
4081 {
4082 	u16 len;
4083 	u16 page;
4084 	u16 offset;
4085 	u16 next;
4086 	int words;
4087 	int i;
4088 	unsigned long flags;
4089 
4090 	spin_lock_irqsave(&ai->aux_lock, flags);
4091 	page = IN4500(ai, SWS0+whichbap);
4092 	offset = IN4500(ai, SWS2+whichbap);
4093 	next = aux_setup(ai, page, offset, &len);
4094 	words = (bytelen+1)>>1;
4095 
4096 	for (i = 0; i<words;) {
4097 		int count;
4098 		count = (len>>1) < (words-i) ? (len>>1) : (words-i);
4099 		if (!do8bitIO)
4100 			insw(ai->dev->base_addr+DATA0+whichbap,
4101 			      pu16Dst+i, count);
4102 		else
4103 			insb(ai->dev->base_addr+DATA0+whichbap,
4104 			      pu16Dst+i, count << 1);
4105 		i += count;
4106 		if (i<words) {
4107 			next = aux_setup(ai, next, 4, &len);
4108 		}
4109 	}
4110 	spin_unlock_irqrestore(&ai->aux_lock, flags);
4111 	return SUCCESS;
4112 }
4113 
4114 
4115 /* requires call to bap_setup() first */
fast_bap_read(struct airo_info * ai,__le16 * pu16Dst,int bytelen,int whichbap)4116 static int fast_bap_read(struct airo_info *ai, __le16 *pu16Dst,
4117 			 int bytelen, int whichbap)
4118 {
4119 	bytelen = (bytelen + 1) & (~1); // round up to even value
4120 	if (!do8bitIO)
4121 		insw(ai->dev->base_addr+DATA0+whichbap, pu16Dst, bytelen>>1);
4122 	else
4123 		insb(ai->dev->base_addr+DATA0+whichbap, pu16Dst, bytelen);
4124 	return SUCCESS;
4125 }
4126 
4127 /* requires call to bap_setup() first */
bap_write(struct airo_info * ai,const __le16 * pu16Src,int bytelen,int whichbap)4128 static int bap_write(struct airo_info *ai, const __le16 *pu16Src,
4129 		     int bytelen, int whichbap)
4130 {
4131 	bytelen = (bytelen + 1) & (~1); // round up to even value
4132 	if (!do8bitIO)
4133 		outsw(ai->dev->base_addr+DATA0+whichbap,
4134 		       pu16Src, bytelen>>1);
4135 	else
4136 		outsb(ai->dev->base_addr+DATA0+whichbap, pu16Src, bytelen);
4137 	return SUCCESS;
4138 }
4139 
PC4500_accessrid(struct airo_info * ai,u16 rid,u16 accmd)4140 static int PC4500_accessrid(struct airo_info *ai, u16 rid, u16 accmd)
4141 {
4142 	Cmd cmd; /* for issuing commands */
4143 	Resp rsp; /* response from commands */
4144 	u16 status;
4145 
4146 	memset(&cmd, 0, sizeof(cmd));
4147 	cmd.cmd = accmd;
4148 	cmd.parm0 = rid;
4149 	status = issuecommand(ai, &cmd, &rsp, true);
4150 	if (status != 0) return status;
4151 	if ((rsp.status & 0x7F00) != 0) {
4152 		return (accmd << 8) + (rsp.rsp0 & 0xFF);
4153 	}
4154 	return 0;
4155 }
4156 
4157 /*  Note, that we are using BAP1 which is also used by transmit, so
4158  *  we must get a lock. */
PC4500_readrid(struct airo_info * ai,u16 rid,void * pBuf,int len,int lock)4159 static int PC4500_readrid(struct airo_info *ai, u16 rid, void *pBuf, int len, int lock)
4160 {
4161 	u16 status;
4162         int rc = SUCCESS;
4163 
4164 	if (lock) {
4165 		if (down_interruptible(&ai->sem))
4166 			return ERROR;
4167 	}
4168 	if (test_bit(FLAG_MPI,&ai->flags)) {
4169 		Cmd cmd;
4170 		Resp rsp;
4171 
4172 		memset(&cmd, 0, sizeof(cmd));
4173 		memset(&rsp, 0, sizeof(rsp));
4174 		ai->config_desc.rid_desc.valid = 1;
4175 		ai->config_desc.rid_desc.len = RIDSIZE;
4176 		ai->config_desc.rid_desc.rid = 0;
4177 		ai->config_desc.rid_desc.host_addr = ai->ridbus;
4178 
4179 		cmd.cmd = CMD_ACCESS;
4180 		cmd.parm0 = rid;
4181 
4182 		memcpy_toio(ai->config_desc.card_ram_off,
4183 			&ai->config_desc.rid_desc, sizeof(Rid));
4184 
4185 		rc = issuecommand(ai, &cmd, &rsp, true);
4186 
4187 		if (rsp.status & 0x7f00)
4188 			rc = rsp.rsp0;
4189 		if (!rc)
4190 			memcpy(pBuf, ai->config_desc.virtual_host_addr, len);
4191 		goto done;
4192 	} else {
4193 		if ((status = PC4500_accessrid(ai, rid, CMD_ACCESS))!=SUCCESS) {
4194 	                rc = status;
4195 	                goto done;
4196 	        }
4197 		if (bap_setup(ai, rid, 0, BAP1) != SUCCESS) {
4198 			rc = ERROR;
4199 	                goto done;
4200 	        }
4201 		// read the rid length field
4202 		bap_read(ai, pBuf, 2, BAP1);
4203 		// length for remaining part of rid
4204 		len = min(len, (int)le16_to_cpu(*(__le16*)pBuf)) - 2;
4205 
4206 		if (len <= 2) {
4207 			airo_print_err(ai->dev->name,
4208 				"Rid %x has a length of %d which is too short",
4209 				(int)rid, (int)len);
4210 			rc = ERROR;
4211 	                goto done;
4212 		}
4213 		// read remainder of the rid
4214 		rc = bap_read(ai, ((__le16*)pBuf)+1, len, BAP1);
4215 	}
4216 done:
4217 	if (lock)
4218 		up(&ai->sem);
4219 	return rc;
4220 }
4221 
4222 /*  Note, that we are using BAP1 which is also used by transmit, so
4223  *  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)4224 static int PC4500_writerid(struct airo_info *ai, u16 rid,
4225 			   const void *pBuf, int len, int lock)
4226 {
4227 	u16 status;
4228 	int rc = SUCCESS;
4229 
4230 	*(__le16*)pBuf = cpu_to_le16((u16)len);
4231 
4232 	if (lock) {
4233 		if (down_interruptible(&ai->sem))
4234 			return ERROR;
4235 	}
4236 	if (test_bit(FLAG_MPI,&ai->flags)) {
4237 		Cmd cmd;
4238 		Resp rsp;
4239 
4240 		if (test_bit(FLAG_ENABLED, &ai->flags) && (RID_WEP_TEMP != rid))
4241 			airo_print_err(ai->dev->name,
4242 				"%s: MAC should be disabled (rid=%04x)",
4243 				__func__, rid);
4244 		memset(&cmd, 0, sizeof(cmd));
4245 		memset(&rsp, 0, sizeof(rsp));
4246 
4247 		ai->config_desc.rid_desc.valid = 1;
4248 		ai->config_desc.rid_desc.len = *((u16 *)pBuf);
4249 		ai->config_desc.rid_desc.rid = 0;
4250 
4251 		cmd.cmd = CMD_WRITERID;
4252 		cmd.parm0 = rid;
4253 
4254 		memcpy_toio(ai->config_desc.card_ram_off,
4255 			&ai->config_desc.rid_desc, sizeof(Rid));
4256 
4257 		if (len < 4 || len > 2047) {
4258 			airo_print_err(ai->dev->name, "%s: len=%d", __func__, len);
4259 			rc = -1;
4260 		} else {
4261 			memcpy(ai->config_desc.virtual_host_addr,
4262 				pBuf, len);
4263 
4264 			rc = issuecommand(ai, &cmd, &rsp, true);
4265 			if ((rc & 0xff00) != 0) {
4266 				airo_print_err(ai->dev->name, "%s: Write rid Error %d",
4267 						__func__, rc);
4268 				airo_print_err(ai->dev->name, "%s: Cmd=%04x",
4269 						__func__, cmd.cmd);
4270 			}
4271 
4272 			if ((rsp.status & 0x7f00))
4273 				rc = rsp.rsp0;
4274 		}
4275 	} else {
4276 		// --- first access so that we can write the rid data
4277 		if ((status = PC4500_accessrid(ai, rid, CMD_ACCESS)) != 0) {
4278 	                rc = status;
4279 	                goto done;
4280 	        }
4281 		// --- now write the rid data
4282 		if (bap_setup(ai, rid, 0, BAP1) != SUCCESS) {
4283 	                rc = ERROR;
4284 	                goto done;
4285 	        }
4286 		bap_write(ai, pBuf, len, BAP1);
4287 		// ---now commit the rid data
4288 		rc = PC4500_accessrid(ai, rid, 0x100|CMD_ACCESS);
4289 	}
4290 done:
4291 	if (lock)
4292 		up(&ai->sem);
4293         return rc;
4294 }
4295 
4296 /* Allocates a FID to be used for transmitting packets.  We only use
4297    one for now. */
transmit_allocate(struct airo_info * ai,int lenPayload,int raw)4298 static u16 transmit_allocate(struct airo_info *ai, int lenPayload, int raw)
4299 {
4300 	unsigned int loop = 3000;
4301 	Cmd cmd;
4302 	Resp rsp;
4303 	u16 txFid;
4304 	__le16 txControl;
4305 
4306 	cmd.cmd = CMD_ALLOCATETX;
4307 	cmd.parm0 = lenPayload;
4308 	if (down_interruptible(&ai->sem))
4309 		return ERROR;
4310 	if (issuecommand(ai, &cmd, &rsp, true) != SUCCESS) {
4311 		txFid = ERROR;
4312 		goto done;
4313 	}
4314 	if ((rsp.status & 0xFF00) != 0) {
4315 		txFid = ERROR;
4316 		goto done;
4317 	}
4318 	/* wait for the allocate event/indication
4319 	 * It makes me kind of nervous that this can just sit here and spin,
4320 	 * but in practice it only loops like four times. */
4321 	while (((IN4500(ai, EVSTAT) & EV_ALLOC) == 0) && --loop);
4322 	if (!loop) {
4323 		txFid = ERROR;
4324 		goto done;
4325 	}
4326 
4327 	// get the allocated fid and acknowledge
4328 	txFid = IN4500(ai, TXALLOCFID);
4329 	OUT4500(ai, EVACK, EV_ALLOC);
4330 
4331 	/*  The CARD is pretty cool since it converts the ethernet packet
4332 	 *  into 802.11.  Also note that we don't release the FID since we
4333 	 *  will be using the same one over and over again. */
4334 	/*  We only have to setup the control once since we are not
4335 	 *  releasing the fid. */
4336 	if (raw)
4337 		txControl = cpu_to_le16(TXCTL_TXOK | TXCTL_TXEX | TXCTL_802_11
4338 			| TXCTL_ETHERNET | TXCTL_NORELEASE);
4339 	else
4340 		txControl = cpu_to_le16(TXCTL_TXOK | TXCTL_TXEX | TXCTL_802_3
4341 			| TXCTL_ETHERNET | TXCTL_NORELEASE);
4342 	if (bap_setup(ai, txFid, 0x0008, BAP1) != SUCCESS)
4343 		txFid = ERROR;
4344 	else
4345 		bap_write(ai, &txControl, sizeof(txControl), BAP1);
4346 
4347 done:
4348 	up(&ai->sem);
4349 
4350 	return txFid;
4351 }
4352 
4353 /* In general BAP1 is dedicated to transmiting packets.  However,
4354    since we need a BAP when accessing RIDs, we also use BAP1 for that.
4355    Make sure the BAP1 spinlock is held when this is called. */
transmit_802_3_packet(struct airo_info * ai,int len,char * pPacket,bool may_sleep)4356 static int transmit_802_3_packet(struct airo_info *ai, int len, char *pPacket,
4357 				 bool may_sleep)
4358 {
4359 	__le16 payloadLen;
4360 	Cmd cmd;
4361 	Resp rsp;
4362 	int miclen = 0;
4363 	u16 txFid = len;
4364 	MICBuffer pMic;
4365 
4366 	len >>= 16;
4367 
4368 	if (len <= ETH_ALEN * 2) {
4369 		airo_print_warn(ai->dev->name, "Short packet %d", len);
4370 		return ERROR;
4371 	}
4372 	len -= ETH_ALEN * 2;
4373 
4374 	if (test_bit(FLAG_MIC_CAPABLE, &ai->flags) && ai->micstats.enabled &&
4375 	    (ntohs(((__be16 *)pPacket)[6]) != 0x888E)) {
4376 		if (encapsulate(ai, (etherHead *)pPacket,&pMic, len) != SUCCESS)
4377 			return ERROR;
4378 		miclen = sizeof(pMic);
4379 	}
4380 	// packet is destination[6], source[6], payload[len-12]
4381 	// write the payload length and dst/src/payload
4382 	if (bap_setup(ai, txFid, 0x0036, BAP1) != SUCCESS) return ERROR;
4383 	/* The hardware addresses aren't counted as part of the payload, so
4384 	 * we have to subtract the 12 bytes for the addresses off */
4385 	payloadLen = cpu_to_le16(len + miclen);
4386 	bap_write(ai, &payloadLen, sizeof(payloadLen), BAP1);
4387 	bap_write(ai, (__le16*)pPacket, sizeof(etherHead), BAP1);
4388 	if (miclen)
4389 		bap_write(ai, (__le16*)&pMic, miclen, BAP1);
4390 	bap_write(ai, (__le16*)(pPacket + sizeof(etherHead)), len, BAP1);
4391 	// issue the transmit command
4392 	memset(&cmd, 0, sizeof(cmd));
4393 	cmd.cmd = CMD_TRANSMIT;
4394 	cmd.parm0 = txFid;
4395 	if (issuecommand(ai, &cmd, &rsp, may_sleep) != SUCCESS)
4396 		return ERROR;
4397 	if ((rsp.status & 0xFF00) != 0) return ERROR;
4398 	return SUCCESS;
4399 }
4400 
transmit_802_11_packet(struct airo_info * ai,int len,char * pPacket,bool may_sleep)4401 static int transmit_802_11_packet(struct airo_info *ai, int len, char *pPacket,
4402 				  bool may_sleep)
4403 {
4404 	__le16 fc, payloadLen;
4405 	Cmd cmd;
4406 	Resp rsp;
4407 	int hdrlen;
4408 	static u8 tail[(30-10) + 2 + 6] = {[30-10] = 6};
4409 	/* padding of header to full size + le16 gaplen (6) + gaplen bytes */
4410 	u16 txFid = len;
4411 	len >>= 16;
4412 
4413 	fc = *(__le16*)pPacket;
4414 	hdrlen = header_len(fc);
4415 
4416 	if (len < hdrlen) {
4417 		airo_print_warn(ai->dev->name, "Short packet %d", len);
4418 		return ERROR;
4419 	}
4420 
4421 	/* packet is 802.11 header +  payload
4422 	 * write the payload length and dst/src/payload */
4423 	if (bap_setup(ai, txFid, 6, BAP1) != SUCCESS) return ERROR;
4424 	/* The 802.11 header aren't counted as part of the payload, so
4425 	 * we have to subtract the header bytes off */
4426 	payloadLen = cpu_to_le16(len-hdrlen);
4427 	bap_write(ai, &payloadLen, sizeof(payloadLen), BAP1);
4428 	if (bap_setup(ai, txFid, 0x0014, BAP1) != SUCCESS) return ERROR;
4429 	bap_write(ai, (__le16 *)pPacket, hdrlen, BAP1);
4430 	bap_write(ai, (__le16 *)(tail + (hdrlen - 10)), 38 - hdrlen, BAP1);
4431 
4432 	bap_write(ai, (__le16 *)(pPacket + hdrlen), len - hdrlen, BAP1);
4433 	// issue the transmit command
4434 	memset(&cmd, 0, sizeof(cmd));
4435 	cmd.cmd = CMD_TRANSMIT;
4436 	cmd.parm0 = txFid;
4437 	if (issuecommand(ai, &cmd, &rsp, may_sleep) != SUCCESS)
4438 		return ERROR;
4439 	if ((rsp.status & 0xFF00) != 0) return ERROR;
4440 	return SUCCESS;
4441 }
4442 
4443 /*
4444  *  This is the proc_fs routines.  It is a bit messier than I would
4445  *  like!  Feel free to clean it up!
4446  */
4447 
4448 static ssize_t proc_read(struct file *file,
4449 			  char __user *buffer,
4450 			  size_t len,
4451 			  loff_t *offset);
4452 
4453 static ssize_t proc_write(struct file *file,
4454 			   const char __user *buffer,
4455 			   size_t len,
4456 			   loff_t *offset);
4457 static int proc_close(struct inode *inode, struct file *file);
4458 
4459 static int proc_stats_open(struct inode *inode, struct file *file);
4460 static int proc_statsdelta_open(struct inode *inode, struct file *file);
4461 static int proc_status_open(struct inode *inode, struct file *file);
4462 static int proc_SSID_open(struct inode *inode, struct file *file);
4463 static int proc_APList_open(struct inode *inode, struct file *file);
4464 static int proc_BSSList_open(struct inode *inode, struct file *file);
4465 static int proc_config_open(struct inode *inode, struct file *file);
4466 static int proc_wepkey_open(struct inode *inode, struct file *file);
4467 
4468 static const struct proc_ops proc_statsdelta_ops = {
4469 	.proc_read	= proc_read,
4470 	.proc_open	= proc_statsdelta_open,
4471 	.proc_release	= proc_close,
4472 	.proc_lseek	= default_llseek,
4473 };
4474 
4475 static const struct proc_ops proc_stats_ops = {
4476 	.proc_read	= proc_read,
4477 	.proc_open	= proc_stats_open,
4478 	.proc_release	= proc_close,
4479 	.proc_lseek	= default_llseek,
4480 };
4481 
4482 static const struct proc_ops proc_status_ops = {
4483 	.proc_read	= proc_read,
4484 	.proc_open	= proc_status_open,
4485 	.proc_release	= proc_close,
4486 	.proc_lseek	= default_llseek,
4487 };
4488 
4489 static const struct proc_ops proc_SSID_ops = {
4490 	.proc_read	= proc_read,
4491 	.proc_write	= proc_write,
4492 	.proc_open	= proc_SSID_open,
4493 	.proc_release	= proc_close,
4494 	.proc_lseek	= default_llseek,
4495 };
4496 
4497 static const struct proc_ops proc_BSSList_ops = {
4498 	.proc_read	= proc_read,
4499 	.proc_write	= proc_write,
4500 	.proc_open	= proc_BSSList_open,
4501 	.proc_release	= proc_close,
4502 	.proc_lseek	= default_llseek,
4503 };
4504 
4505 static const struct proc_ops proc_APList_ops = {
4506 	.proc_read	= proc_read,
4507 	.proc_write	= proc_write,
4508 	.proc_open	= proc_APList_open,
4509 	.proc_release	= proc_close,
4510 	.proc_lseek	= default_llseek,
4511 };
4512 
4513 static const struct proc_ops proc_config_ops = {
4514 	.proc_read	= proc_read,
4515 	.proc_write	= proc_write,
4516 	.proc_open	= proc_config_open,
4517 	.proc_release	= proc_close,
4518 	.proc_lseek	= default_llseek,
4519 };
4520 
4521 static const struct proc_ops proc_wepkey_ops = {
4522 	.proc_read	= proc_read,
4523 	.proc_write	= proc_write,
4524 	.proc_open	= proc_wepkey_open,
4525 	.proc_release	= proc_close,
4526 	.proc_lseek	= default_llseek,
4527 };
4528 
4529 static struct proc_dir_entry *airo_entry;
4530 
4531 struct proc_data {
4532 	int release_buffer;
4533 	int readlen;
4534 	char *rbuffer;
4535 	int writelen;
4536 	int maxwritelen;
4537 	char *wbuffer;
4538 	void (*on_close) (struct inode *, struct file *);
4539 };
4540 
setup_proc_entry(struct net_device * dev,struct airo_info * apriv)4541 static int setup_proc_entry(struct net_device *dev,
4542 			     struct airo_info *apriv)
4543 {
4544 	struct proc_dir_entry *entry;
4545 
4546 	/* First setup the device directory */
4547 	strcpy(apriv->proc_name, dev->name);
4548 	apriv->proc_entry = proc_mkdir_mode(apriv->proc_name, airo_perm,
4549 					    airo_entry);
4550 	if (!apriv->proc_entry)
4551 		return -ENOMEM;
4552 	proc_set_user(apriv->proc_entry, proc_kuid, proc_kgid);
4553 
4554 	/* Setup the StatsDelta */
4555 	entry = proc_create_data("StatsDelta", 0444 & proc_perm,
4556 				 apriv->proc_entry, &proc_statsdelta_ops, dev);
4557 	if (!entry)
4558 		goto fail;
4559 	proc_set_user(entry, proc_kuid, proc_kgid);
4560 
4561 	/* Setup the Stats */
4562 	entry = proc_create_data("Stats", 0444 & proc_perm,
4563 				 apriv->proc_entry, &proc_stats_ops, dev);
4564 	if (!entry)
4565 		goto fail;
4566 	proc_set_user(entry, proc_kuid, proc_kgid);
4567 
4568 	/* Setup the Status */
4569 	entry = proc_create_data("Status", 0444 & proc_perm,
4570 				 apriv->proc_entry, &proc_status_ops, dev);
4571 	if (!entry)
4572 		goto fail;
4573 	proc_set_user(entry, proc_kuid, proc_kgid);
4574 
4575 	/* Setup the Config */
4576 	entry = proc_create_data("Config", proc_perm,
4577 				 apriv->proc_entry, &proc_config_ops, dev);
4578 	if (!entry)
4579 		goto fail;
4580 	proc_set_user(entry, proc_kuid, proc_kgid);
4581 
4582 	/* Setup the SSID */
4583 	entry = proc_create_data("SSID", proc_perm,
4584 				 apriv->proc_entry, &proc_SSID_ops, dev);
4585 	if (!entry)
4586 		goto fail;
4587 	proc_set_user(entry, proc_kuid, proc_kgid);
4588 
4589 	/* Setup the APList */
4590 	entry = proc_create_data("APList", proc_perm,
4591 				 apriv->proc_entry, &proc_APList_ops, dev);
4592 	if (!entry)
4593 		goto fail;
4594 	proc_set_user(entry, proc_kuid, proc_kgid);
4595 
4596 	/* Setup the BSSList */
4597 	entry = proc_create_data("BSSList", proc_perm,
4598 				 apriv->proc_entry, &proc_BSSList_ops, dev);
4599 	if (!entry)
4600 		goto fail;
4601 	proc_set_user(entry, proc_kuid, proc_kgid);
4602 
4603 	/* Setup the WepKey */
4604 	entry = proc_create_data("WepKey", proc_perm,
4605 				 apriv->proc_entry, &proc_wepkey_ops, dev);
4606 	if (!entry)
4607 		goto fail;
4608 	proc_set_user(entry, proc_kuid, proc_kgid);
4609 	return 0;
4610 
4611 fail:
4612 	remove_proc_subtree(apriv->proc_name, airo_entry);
4613 	return -ENOMEM;
4614 }
4615 
takedown_proc_entry(struct net_device * dev,struct airo_info * apriv)4616 static int takedown_proc_entry(struct net_device *dev,
4617 				struct airo_info *apriv)
4618 {
4619 	remove_proc_subtree(apriv->proc_name, airo_entry);
4620 	return 0;
4621 }
4622 
4623 /*
4624  *  What we want from the proc_fs is to be able to efficiently read
4625  *  and write the configuration.  To do this, we want to read the
4626  *  configuration when the file is opened and write it when the file is
4627  *  closed.  So basically we allocate a read buffer at open and fill it
4628  *  with data, and allocate a write buffer and read it at close.
4629  */
4630 
4631 /*
4632  *  The read routine is generic, it relies on the preallocated rbuffer
4633  *  to supply the data.
4634  */
proc_read(struct file * file,char __user * buffer,size_t len,loff_t * offset)4635 static ssize_t proc_read(struct file *file,
4636 			  char __user *buffer,
4637 			  size_t len,
4638 			  loff_t *offset)
4639 {
4640 	struct proc_data *priv = file->private_data;
4641 
4642 	if (!priv->rbuffer)
4643 		return -EINVAL;
4644 
4645 	return simple_read_from_buffer(buffer, len, offset, priv->rbuffer,
4646 					priv->readlen);
4647 }
4648 
4649 /*
4650  *  The write routine is generic, it fills in a preallocated rbuffer
4651  *  to supply the data.
4652  */
proc_write(struct file * file,const char __user * buffer,size_t len,loff_t * offset)4653 static ssize_t proc_write(struct file *file,
4654 			   const char __user *buffer,
4655 			   size_t len,
4656 			   loff_t *offset)
4657 {
4658 	ssize_t ret;
4659 	struct proc_data *priv = file->private_data;
4660 
4661 	if (!priv->wbuffer)
4662 		return -EINVAL;
4663 
4664 	ret = simple_write_to_buffer(priv->wbuffer, priv->maxwritelen, offset,
4665 					buffer, len);
4666 	if (ret > 0)
4667 		priv->writelen = max_t(int, priv->writelen, *offset);
4668 
4669 	return ret;
4670 }
4671 
proc_status_open(struct inode * inode,struct file * file)4672 static int proc_status_open(struct inode *inode, struct file *file)
4673 {
4674 	struct proc_data *data;
4675 	struct net_device *dev = pde_data(inode);
4676 	struct airo_info *apriv = dev->ml_priv;
4677 	CapabilityRid cap_rid;
4678 	StatusRid status_rid;
4679 	u16 mode;
4680 	int i;
4681 
4682 	if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
4683 		return -ENOMEM;
4684 	data = file->private_data;
4685 	if ((data->rbuffer = kmalloc(2048, GFP_KERNEL)) == NULL) {
4686 		kfree (file->private_data);
4687 		return -ENOMEM;
4688 	}
4689 
4690 	readStatusRid(apriv, &status_rid, 1);
4691 	readCapabilityRid(apriv, &cap_rid, 1);
4692 
4693 	mode = le16_to_cpu(status_rid.mode);
4694 
4695         i = sprintf(data->rbuffer, "Status: %s%s%s%s%s%s%s%s%s\n",
4696                     mode & 1 ? "CFG ": "",
4697                     mode & 2 ? "ACT ": "",
4698                     mode & 0x10 ? "SYN ": "",
4699                     mode & 0x20 ? "LNK ": "",
4700                     mode & 0x40 ? "LEAP ": "",
4701                     mode & 0x80 ? "PRIV ": "",
4702                     mode & 0x100 ? "KEY ": "",
4703                     mode & 0x200 ? "WEP ": "",
4704                     mode & 0x8000 ? "ERR ": "");
4705 	sprintf(data->rbuffer+i, "Mode: %x\n"
4706 		 "Signal Strength: %d\n"
4707 		 "Signal Quality: %d\n"
4708 		 "SSID: %-.*s\n"
4709 		 "AP: %-.16s\n"
4710 		 "Freq: %d\n"
4711 		 "BitRate: %dmbs\n"
4712 		 "Driver Version: %s\n"
4713 		 "Device: %s\nManufacturer: %s\nFirmware Version: %s\n"
4714 		 "Radio type: %x\nCountry: %x\nHardware Version: %x\n"
4715 		 "Software Version: %x\nSoftware Subversion: %x\n"
4716 		 "Boot block version: %x\n",
4717 		 le16_to_cpu(status_rid.mode),
4718 		 le16_to_cpu(status_rid.normalizedSignalStrength),
4719 		 le16_to_cpu(status_rid.signalQuality),
4720 		 le16_to_cpu(status_rid.SSIDlen),
4721 		 status_rid.SSID,
4722 		 status_rid.apName,
4723 		 le16_to_cpu(status_rid.channel),
4724 		 le16_to_cpu(status_rid.currentXmitRate) / 2,
4725 		 version,
4726 		 cap_rid.prodName,
4727 		 cap_rid.manName,
4728 		 cap_rid.prodVer,
4729 		 le16_to_cpu(cap_rid.radioType),
4730 		 le16_to_cpu(cap_rid.country),
4731 		 le16_to_cpu(cap_rid.hardVer),
4732 		 le16_to_cpu(cap_rid.softVer),
4733 		 le16_to_cpu(cap_rid.softSubVer),
4734 		 le16_to_cpu(cap_rid.bootBlockVer));
4735 	data->readlen = strlen(data->rbuffer);
4736 	return 0;
4737 }
4738 
4739 static int proc_stats_rid_open(struct inode*, struct file*, u16);
proc_statsdelta_open(struct inode * inode,struct file * file)4740 static int proc_statsdelta_open(struct inode *inode,
4741 				 struct file *file)
4742 {
4743 	if (file->f_mode&FMODE_WRITE) {
4744 		return proc_stats_rid_open(inode, file, RID_STATSDELTACLEAR);
4745 	}
4746 	return proc_stats_rid_open(inode, file, RID_STATSDELTA);
4747 }
4748 
proc_stats_open(struct inode * inode,struct file * file)4749 static int proc_stats_open(struct inode *inode, struct file *file)
4750 {
4751 	return proc_stats_rid_open(inode, file, RID_STATS);
4752 }
4753 
proc_stats_rid_open(struct inode * inode,struct file * file,u16 rid)4754 static int proc_stats_rid_open(struct inode *inode,
4755 				struct file *file,
4756 				u16 rid)
4757 {
4758 	struct proc_data *data;
4759 	struct net_device *dev = pde_data(inode);
4760 	struct airo_info *apriv = dev->ml_priv;
4761 	StatsRid stats;
4762 	int i, j;
4763 	__le32 *vals = stats.vals;
4764 	int len;
4765 
4766 	if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
4767 		return -ENOMEM;
4768 	data = file->private_data;
4769 	if ((data->rbuffer = kmalloc(4096, GFP_KERNEL)) == NULL) {
4770 		kfree (file->private_data);
4771 		return -ENOMEM;
4772 	}
4773 
4774 	readStatsRid(apriv, &stats, rid, 1);
4775 	len = le16_to_cpu(stats.len);
4776 
4777         j = 0;
4778 	for (i = 0; statsLabels[i]!=(char *)-1 && i*4<len; i++) {
4779 		if (!statsLabels[i]) continue;
4780 		if (j+strlen(statsLabels[i])+16>4096) {
4781 			airo_print_warn(apriv->dev->name,
4782 			       "Potentially disastrous buffer overflow averted!");
4783 			break;
4784 		}
4785 		j+=sprintf(data->rbuffer+j, "%s: %u\n", statsLabels[i],
4786 				le32_to_cpu(vals[i]));
4787 	}
4788 	if (i*4 >= len) {
4789 		airo_print_warn(apriv->dev->name, "Got a short rid");
4790 	}
4791 	data->readlen = j;
4792 	return 0;
4793 }
4794 
get_dec_u16(char * buffer,int * start,int limit)4795 static int get_dec_u16(char *buffer, int *start, int limit)
4796 {
4797 	u16 value;
4798 	int valid = 0;
4799 	for (value = 0; *start < limit && buffer[*start] >= '0' &&
4800 			buffer[*start] <= '9'; (*start)++) {
4801 		valid = 1;
4802 		value *= 10;
4803 		value += buffer[*start] - '0';
4804 	}
4805 	if (!valid) return -1;
4806 	return value;
4807 }
4808 
4809 static int airo_config_commit(struct net_device *dev,
4810 			      struct iw_request_info *info, void *zwrq,
4811 			      char *extra);
4812 
sniffing_mode(struct airo_info * ai)4813 static inline int sniffing_mode(struct airo_info *ai)
4814 {
4815 	return (le16_to_cpu(ai->config.rmode) & le16_to_cpu(RXMODE_MASK)) >=
4816 		le16_to_cpu(RXMODE_RFMON);
4817 }
4818 
proc_config_on_close(struct inode * inode,struct file * file)4819 static void proc_config_on_close(struct inode *inode, struct file *file)
4820 {
4821 	struct proc_data *data = file->private_data;
4822 	struct net_device *dev = pde_data(inode);
4823 	struct airo_info *ai = dev->ml_priv;
4824 	char *line;
4825 
4826 	if (!data->writelen) return;
4827 
4828 	readConfigRid(ai, 1);
4829 	set_bit (FLAG_COMMIT, &ai->flags);
4830 
4831 	line = data->wbuffer;
4832 	while (line[0]) {
4833 /*** Mode processing */
4834 		if (!strncmp(line, "Mode: ", 6)) {
4835 			line += 6;
4836 			if (sniffing_mode(ai))
4837 				set_bit (FLAG_RESET, &ai->flags);
4838 			ai->config.rmode &= ~RXMODE_FULL_MASK;
4839 			clear_bit (FLAG_802_11, &ai->flags);
4840 			ai->config.opmode &= ~MODE_CFG_MASK;
4841 			ai->config.scanMode = SCANMODE_ACTIVE;
4842 			if (line[0] == 'a') {
4843 				ai->config.opmode |= MODE_STA_IBSS;
4844 			} else {
4845 				ai->config.opmode |= MODE_STA_ESS;
4846 				if (line[0] == 'r') {
4847 					ai->config.rmode |= RXMODE_RFMON | RXMODE_DISABLE_802_3_HEADER;
4848 					ai->config.scanMode = SCANMODE_PASSIVE;
4849 					set_bit (FLAG_802_11, &ai->flags);
4850 				} else if (line[0] == 'y') {
4851 					ai->config.rmode |= RXMODE_RFMON_ANYBSS | RXMODE_DISABLE_802_3_HEADER;
4852 					ai->config.scanMode = SCANMODE_PASSIVE;
4853 					set_bit (FLAG_802_11, &ai->flags);
4854 				} else if (line[0] == 'l')
4855 					ai->config.rmode |= RXMODE_LANMON;
4856 			}
4857 			set_bit (FLAG_COMMIT, &ai->flags);
4858 		}
4859 
4860 /*** Radio status */
4861 		else if (!strncmp(line,"Radio: ", 7)) {
4862 			line += 7;
4863 			if (!strncmp(line,"off", 3)) {
4864 				set_bit (FLAG_RADIO_OFF, &ai->flags);
4865 			} else {
4866 				clear_bit (FLAG_RADIO_OFF, &ai->flags);
4867 			}
4868 		}
4869 /*** NodeName processing */
4870 		else if (!strncmp(line, "NodeName: ", 10)) {
4871 			int j;
4872 
4873 			line += 10;
4874 			memset(ai->config.nodeName, 0, 16);
4875 /* Do the name, assume a space between the mode and node name */
4876 			for (j = 0; j < 16 && line[j] != '\n'; j++) {
4877 				ai->config.nodeName[j] = line[j];
4878 			}
4879 			set_bit (FLAG_COMMIT, &ai->flags);
4880 		}
4881 
4882 /*** PowerMode processing */
4883 		else if (!strncmp(line, "PowerMode: ", 11)) {
4884 			line += 11;
4885 			if (!strncmp(line, "PSPCAM", 6)) {
4886 				ai->config.powerSaveMode = POWERSAVE_PSPCAM;
4887 				set_bit (FLAG_COMMIT, &ai->flags);
4888 			} else if (!strncmp(line, "PSP", 3)) {
4889 				ai->config.powerSaveMode = POWERSAVE_PSP;
4890 				set_bit (FLAG_COMMIT, &ai->flags);
4891 			} else {
4892 				ai->config.powerSaveMode = POWERSAVE_CAM;
4893 				set_bit (FLAG_COMMIT, &ai->flags);
4894 			}
4895 		} else if (!strncmp(line, "DataRates: ", 11)) {
4896 			int v, i = 0, k = 0; /* i is index into line,
4897 						k is index to rates */
4898 
4899 			line += 11;
4900 			while ((v = get_dec_u16(line, &i, 3))!=-1) {
4901 				ai->config.rates[k++] = (u8)v;
4902 				line += i + 1;
4903 				i = 0;
4904 			}
4905 			set_bit (FLAG_COMMIT, &ai->flags);
4906 		} else if (!strncmp(line, "Channel: ", 9)) {
4907 			int v, i = 0;
4908 			line += 9;
4909 			v = get_dec_u16(line, &i, i+3);
4910 			if (v != -1) {
4911 				ai->config.channelSet = cpu_to_le16(v);
4912 				set_bit (FLAG_COMMIT, &ai->flags);
4913 			}
4914 		} else if (!strncmp(line, "XmitPower: ", 11)) {
4915 			int v, i = 0;
4916 			line += 11;
4917 			v = get_dec_u16(line, &i, i+3);
4918 			if (v != -1) {
4919 				ai->config.txPower = cpu_to_le16(v);
4920 				set_bit (FLAG_COMMIT, &ai->flags);
4921 			}
4922 		} else if (!strncmp(line, "WEP: ", 5)) {
4923 			line += 5;
4924 			switch(line[0]) {
4925 			case 's':
4926 				set_auth_type(ai, AUTH_SHAREDKEY);
4927 				break;
4928 			case 'e':
4929 				set_auth_type(ai, AUTH_ENCRYPT);
4930 				break;
4931 			default:
4932 				set_auth_type(ai, AUTH_OPEN);
4933 				break;
4934 			}
4935 			set_bit (FLAG_COMMIT, &ai->flags);
4936 		} else if (!strncmp(line, "LongRetryLimit: ", 16)) {
4937 			int v, i = 0;
4938 
4939 			line += 16;
4940 			v = get_dec_u16(line, &i, 3);
4941 			v = (v<0) ? 0 : ((v>255) ? 255 : v);
4942 			ai->config.longRetryLimit = cpu_to_le16(v);
4943 			set_bit (FLAG_COMMIT, &ai->flags);
4944 		} else if (!strncmp(line, "ShortRetryLimit: ", 17)) {
4945 			int v, i = 0;
4946 
4947 			line += 17;
4948 			v = get_dec_u16(line, &i, 3);
4949 			v = (v<0) ? 0 : ((v>255) ? 255 : v);
4950 			ai->config.shortRetryLimit = cpu_to_le16(v);
4951 			set_bit (FLAG_COMMIT, &ai->flags);
4952 		} else if (!strncmp(line, "RTSThreshold: ", 14)) {
4953 			int v, i = 0;
4954 
4955 			line += 14;
4956 			v = get_dec_u16(line, &i, 4);
4957 			v = (v<0) ? 0 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v);
4958 			ai->config.rtsThres = cpu_to_le16(v);
4959 			set_bit (FLAG_COMMIT, &ai->flags);
4960 		} else if (!strncmp(line, "TXMSDULifetime: ", 16)) {
4961 			int v, i = 0;
4962 
4963 			line += 16;
4964 			v = get_dec_u16(line, &i, 5);
4965 			v = (v<0) ? 0 : v;
4966 			ai->config.txLifetime = cpu_to_le16(v);
4967 			set_bit (FLAG_COMMIT, &ai->flags);
4968 		} else if (!strncmp(line, "RXMSDULifetime: ", 16)) {
4969 			int v, i = 0;
4970 
4971 			line += 16;
4972 			v = get_dec_u16(line, &i, 5);
4973 			v = (v<0) ? 0 : v;
4974 			ai->config.rxLifetime = cpu_to_le16(v);
4975 			set_bit (FLAG_COMMIT, &ai->flags);
4976 		} else if (!strncmp(line, "TXDiversity: ", 13)) {
4977 			ai->config.txDiversity =
4978 				(line[13]=='l') ? 1 :
4979 				((line[13]=='r')? 2: 3);
4980 			set_bit (FLAG_COMMIT, &ai->flags);
4981 		} else if (!strncmp(line, "RXDiversity: ", 13)) {
4982 			ai->config.rxDiversity =
4983 				(line[13]=='l') ? 1 :
4984 				((line[13]=='r')? 2: 3);
4985 			set_bit (FLAG_COMMIT, &ai->flags);
4986 		} else if (!strncmp(line, "FragThreshold: ", 15)) {
4987 			int v, i = 0;
4988 
4989 			line += 15;
4990 			v = get_dec_u16(line, &i, 4);
4991 			v = (v<256) ? 256 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v);
4992 			v = v & 0xfffe; /* Make sure its even */
4993 			ai->config.fragThresh = cpu_to_le16(v);
4994 			set_bit (FLAG_COMMIT, &ai->flags);
4995 		} else if (!strncmp(line, "Modulation: ", 12)) {
4996 			line += 12;
4997 			switch(*line) {
4998 			case 'd':  ai->config.modulation = MOD_DEFAULT; set_bit(FLAG_COMMIT, &ai->flags); break;
4999 			case 'c':  ai->config.modulation = MOD_CCK; set_bit(FLAG_COMMIT, &ai->flags); break;
5000 			case 'm':  ai->config.modulation = MOD_MOK; set_bit(FLAG_COMMIT, &ai->flags); break;
5001 			default: airo_print_warn(ai->dev->name, "Unknown modulation");
5002 			}
5003 		} else if (!strncmp(line, "Preamble: ", 10)) {
5004 			line += 10;
5005 			switch(*line) {
5006 			case 'a': ai->config.preamble = PREAMBLE_AUTO; set_bit(FLAG_COMMIT, &ai->flags); break;
5007 			case 'l': ai->config.preamble = PREAMBLE_LONG; set_bit(FLAG_COMMIT, &ai->flags); break;
5008 			case 's': ai->config.preamble = PREAMBLE_SHORT; set_bit(FLAG_COMMIT, &ai->flags); break;
5009 			default: airo_print_warn(ai->dev->name, "Unknown preamble");
5010 			}
5011 		} else {
5012 			airo_print_warn(ai->dev->name, "Couldn't figure out %s", line);
5013 		}
5014 		while (line[0] && line[0] != '\n') line++;
5015 		if (line[0]) line++;
5016 	}
5017 	airo_config_commit(dev, NULL, NULL, NULL);
5018 }
5019 
get_rmode(__le16 mode)5020 static const char *get_rmode(__le16 mode)
5021 {
5022         switch(mode & RXMODE_MASK) {
5023         case RXMODE_RFMON:  return "rfmon";
5024         case RXMODE_RFMON_ANYBSS:  return "yna (any) bss rfmon";
5025         case RXMODE_LANMON:  return "lanmon";
5026         }
5027         return "ESS";
5028 }
5029 
proc_config_open(struct inode * inode,struct file * file)5030 static int proc_config_open(struct inode *inode, struct file *file)
5031 {
5032 	struct proc_data *data;
5033 	struct net_device *dev = pde_data(inode);
5034 	struct airo_info *ai = dev->ml_priv;
5035 	int i;
5036 	__le16 mode;
5037 
5038 	if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5039 		return -ENOMEM;
5040 	data = file->private_data;
5041 	if ((data->rbuffer = kmalloc(2048, GFP_KERNEL)) == NULL) {
5042 		kfree (file->private_data);
5043 		return -ENOMEM;
5044 	}
5045 	if ((data->wbuffer = kzalloc(2048, GFP_KERNEL)) == NULL) {
5046 		kfree (data->rbuffer);
5047 		kfree (file->private_data);
5048 		return -ENOMEM;
5049 	}
5050 	data->maxwritelen = 2048;
5051 	data->on_close = proc_config_on_close;
5052 
5053 	readConfigRid(ai, 1);
5054 
5055 	mode = ai->config.opmode & MODE_CFG_MASK;
5056 	i = sprintf(data->rbuffer,
5057 		     "Mode: %s\n"
5058 		     "Radio: %s\n"
5059 		     "NodeName: %-16s\n"
5060 		     "PowerMode: %s\n"
5061 		     "DataRates: %d %d %d %d %d %d %d %d\n"
5062 		     "Channel: %d\n"
5063 		     "XmitPower: %d\n",
5064 		     mode == MODE_STA_IBSS ? "adhoc" :
5065 		     mode == MODE_STA_ESS ? get_rmode(ai->config.rmode):
5066 		     mode == MODE_AP ? "AP" :
5067 		     mode == MODE_AP_RPTR ? "AP RPTR" : "Error",
5068 		     test_bit(FLAG_RADIO_OFF, &ai->flags) ? "off" : "on",
5069 		     ai->config.nodeName,
5070 		     ai->config.powerSaveMode == POWERSAVE_CAM ? "CAM" :
5071 		     ai->config.powerSaveMode == POWERSAVE_PSP ? "PSP" :
5072 		     ai->config.powerSaveMode == POWERSAVE_PSPCAM ? "PSPCAM" :
5073 		     "Error",
5074 		     (int)ai->config.rates[0],
5075 		     (int)ai->config.rates[1],
5076 		     (int)ai->config.rates[2],
5077 		     (int)ai->config.rates[3],
5078 		     (int)ai->config.rates[4],
5079 		     (int)ai->config.rates[5],
5080 		     (int)ai->config.rates[6],
5081 		     (int)ai->config.rates[7],
5082 		     le16_to_cpu(ai->config.channelSet),
5083 		     le16_to_cpu(ai->config.txPower)
5084 		);
5085 	sprintf(data->rbuffer + i,
5086 		 "LongRetryLimit: %d\n"
5087 		 "ShortRetryLimit: %d\n"
5088 		 "RTSThreshold: %d\n"
5089 		 "TXMSDULifetime: %d\n"
5090 		 "RXMSDULifetime: %d\n"
5091 		 "TXDiversity: %s\n"
5092 		 "RXDiversity: %s\n"
5093 		 "FragThreshold: %d\n"
5094 		 "WEP: %s\n"
5095 		 "Modulation: %s\n"
5096 		 "Preamble: %s\n",
5097 		 le16_to_cpu(ai->config.longRetryLimit),
5098 		 le16_to_cpu(ai->config.shortRetryLimit),
5099 		 le16_to_cpu(ai->config.rtsThres),
5100 		 le16_to_cpu(ai->config.txLifetime),
5101 		 le16_to_cpu(ai->config.rxLifetime),
5102 		 ai->config.txDiversity == 1 ? "left" :
5103 		 ai->config.txDiversity == 2 ? "right" : "both",
5104 		 ai->config.rxDiversity == 1 ? "left" :
5105 		 ai->config.rxDiversity == 2 ? "right" : "both",
5106 		 le16_to_cpu(ai->config.fragThresh),
5107 		 ai->config.authType == AUTH_ENCRYPT ? "encrypt" :
5108 		 ai->config.authType == AUTH_SHAREDKEY ? "shared" : "open",
5109 		 ai->config.modulation == MOD_DEFAULT ? "default" :
5110 		 ai->config.modulation == MOD_CCK ? "cck" :
5111 		 ai->config.modulation == MOD_MOK ? "mok" : "error",
5112 		 ai->config.preamble == PREAMBLE_AUTO ? "auto" :
5113 		 ai->config.preamble == PREAMBLE_LONG ? "long" :
5114 		 ai->config.preamble == PREAMBLE_SHORT ? "short" : "error"
5115 		);
5116 	data->readlen = strlen(data->rbuffer);
5117 	return 0;
5118 }
5119 
proc_SSID_on_close(struct inode * inode,struct file * file)5120 static void proc_SSID_on_close(struct inode *inode, struct file *file)
5121 {
5122 	struct proc_data *data = file->private_data;
5123 	struct net_device *dev = pde_data(inode);
5124 	struct airo_info *ai = dev->ml_priv;
5125 	SsidRid SSID_rid;
5126 	int i;
5127 	char *p = data->wbuffer;
5128 	char *end = p + data->writelen;
5129 
5130 	if (!data->writelen)
5131 		return;
5132 
5133 	*end = '\n'; /* sentinel; we have space for it */
5134 
5135 	memset(&SSID_rid, 0, sizeof(SSID_rid));
5136 
5137 	for (i = 0; i < 3 && p < end; i++) {
5138 		int j = 0;
5139 		/* copy up to 32 characters from this line */
5140 		while (*p != '\n' && j < 32)
5141 			SSID_rid.ssids[i].ssid[j++] = *p++;
5142 		if (j == 0)
5143 			break;
5144 		SSID_rid.ssids[i].len = cpu_to_le16(j);
5145 		/* skip to the beginning of the next line */
5146 		while (*p++ != '\n')
5147 			;
5148 	}
5149 	if (i)
5150 		SSID_rid.len = cpu_to_le16(sizeof(SSID_rid));
5151 	disable_MAC(ai, 1);
5152 	writeSsidRid(ai, &SSID_rid, 1);
5153 	enable_MAC(ai, 1);
5154 }
5155 
proc_APList_on_close(struct inode * inode,struct file * file)5156 static void proc_APList_on_close(struct inode *inode, struct file *file)
5157 {
5158 	struct proc_data *data = file->private_data;
5159 	struct net_device *dev = pde_data(inode);
5160 	struct airo_info *ai = dev->ml_priv;
5161 	APListRid *APList_rid = &ai->APList;
5162 	int i;
5163 
5164 	if (!data->writelen) return;
5165 
5166 	memset(APList_rid, 0, sizeof(*APList_rid));
5167 	APList_rid->len = cpu_to_le16(sizeof(*APList_rid));
5168 
5169 	for (i = 0; i < 4 && data->writelen >= (i + 1) * 6 * 3; i++)
5170 		mac_pton(data->wbuffer + i * 6 * 3, APList_rid->ap[i]);
5171 
5172 	disable_MAC(ai, 1);
5173 	writeAPListRid(ai, APList_rid, 1);
5174 	enable_MAC(ai, 1);
5175 }
5176 
5177 /* 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)5178 static int do_writerid(struct airo_info *ai, u16 rid, const void *rid_data,
5179 			int len, int dummy)
5180 {
5181 	int rc;
5182 
5183 	disable_MAC(ai, 1);
5184 	rc = PC4500_writerid(ai, rid, rid_data, len, 1);
5185 	enable_MAC(ai, 1);
5186 	return rc;
5187 }
5188 
5189 /* Returns the WEP key at the specified index, or -1 if that key does
5190  * not exist.  The buffer is assumed to be at least 16 bytes in length.
5191  */
get_wep_key(struct airo_info * ai,u16 index,char * buf,u16 buflen)5192 static int get_wep_key(struct airo_info *ai, u16 index, char *buf, u16 buflen)
5193 {
5194 	WepKeyRid wkr;
5195 	int rc;
5196 	__le16 lastindex;
5197 
5198 	rc = readWepKeyRid(ai, &wkr, 1, 1);
5199 	if (rc != SUCCESS)
5200 		return -1;
5201 	do {
5202 		lastindex = wkr.kindex;
5203 		if (le16_to_cpu(wkr.kindex) == index) {
5204 			int klen = min_t(int, buflen, le16_to_cpu(wkr.klen));
5205 			memcpy(buf, wkr.key, klen);
5206 			return klen;
5207 		}
5208 		rc = readWepKeyRid(ai, &wkr, 0, 1);
5209 		if (rc != SUCCESS)
5210 			return -1;
5211 	} while (lastindex != wkr.kindex);
5212 	return -1;
5213 }
5214 
get_wep_tx_idx(struct airo_info * ai)5215 static int get_wep_tx_idx(struct airo_info *ai)
5216 {
5217 	WepKeyRid wkr;
5218 	int rc;
5219 	__le16 lastindex;
5220 
5221 	rc = readWepKeyRid(ai, &wkr, 1, 1);
5222 	if (rc != SUCCESS)
5223 		return -1;
5224 	do {
5225 		lastindex = wkr.kindex;
5226 		if (wkr.kindex == cpu_to_le16(0xffff))
5227 			return wkr.mac[0];
5228 		rc = readWepKeyRid(ai, &wkr, 0, 1);
5229 		if (rc != SUCCESS)
5230 			return -1;
5231 	} while (lastindex != wkr.kindex);
5232 	return -1;
5233 }
5234 
set_wep_key(struct airo_info * ai,u16 index,const u8 * key,u16 keylen,int perm,int lock)5235 static int set_wep_key(struct airo_info *ai, u16 index, const u8 *key,
5236 		       u16 keylen, int perm, int lock)
5237 {
5238 	static const unsigned char macaddr[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 };
5239 	WepKeyRid wkr;
5240 	int rc;
5241 
5242 	if (WARN_ON(keylen == 0))
5243 		return -1;
5244 
5245 	memset(&wkr, 0, sizeof(wkr));
5246 	wkr.len = cpu_to_le16(sizeof(wkr));
5247 	wkr.kindex = cpu_to_le16(index);
5248 	wkr.klen = cpu_to_le16(keylen);
5249 	memcpy(wkr.key, key, keylen);
5250 	memcpy(wkr.mac, macaddr, ETH_ALEN);
5251 
5252 	if (perm) disable_MAC(ai, lock);
5253 	rc = writeWepKeyRid(ai, &wkr, perm, lock);
5254 	if (perm) enable_MAC(ai, lock);
5255 	return rc;
5256 }
5257 
set_wep_tx_idx(struct airo_info * ai,u16 index,int perm,int lock)5258 static int set_wep_tx_idx(struct airo_info *ai, u16 index, int perm, int lock)
5259 {
5260 	WepKeyRid wkr;
5261 	int rc;
5262 
5263 	memset(&wkr, 0, sizeof(wkr));
5264 	wkr.len = cpu_to_le16(sizeof(wkr));
5265 	wkr.kindex = cpu_to_le16(0xffff);
5266 	wkr.mac[0] = (char)index;
5267 
5268 	if (perm) {
5269 		ai->defindex = (char)index;
5270 		disable_MAC(ai, lock);
5271 	}
5272 
5273 	rc = writeWepKeyRid(ai, &wkr, perm, lock);
5274 
5275 	if (perm)
5276 		enable_MAC(ai, lock);
5277 	return rc;
5278 }
5279 
proc_wepkey_on_close(struct inode * inode,struct file * file)5280 static void proc_wepkey_on_close(struct inode *inode, struct file *file)
5281 {
5282 	struct proc_data *data;
5283 	struct net_device *dev = pde_data(inode);
5284 	struct airo_info *ai = dev->ml_priv;
5285 	int i, rc;
5286 	u8 key[16];
5287 	u16 index = 0;
5288 	int j = 0;
5289 
5290 	memset(key, 0, sizeof(key));
5291 
5292 	data = file->private_data;
5293 	if (!data->writelen) return;
5294 
5295 	if (data->wbuffer[0] >= '0' && data->wbuffer[0] <= '3' &&
5296 	    (data->wbuffer[1] == ' ' || data->wbuffer[1] == '\n')) {
5297 		index = data->wbuffer[0] - '0';
5298 		if (data->wbuffer[1] == '\n') {
5299 			rc = set_wep_tx_idx(ai, index, 1, 1);
5300 			if (rc < 0) {
5301 				airo_print_err(ai->dev->name, "failed to set "
5302 				               "WEP transmit index to %d: %d.",
5303 				               index, rc);
5304 			}
5305 			return;
5306 		}
5307 		j = 2;
5308 	} else {
5309 		airo_print_err(ai->dev->name, "WepKey passed invalid key index");
5310 		return;
5311 	}
5312 
5313 	for (i = 0; i < 16*3 && data->wbuffer[i+j]; i++) {
5314 		int val;
5315 
5316 		if (i % 3 == 2)
5317 			continue;
5318 
5319 		val = hex_to_bin(data->wbuffer[i+j]);
5320 		if (val < 0) {
5321 			airo_print_err(ai->dev->name, "WebKey passed invalid key hex");
5322 			return;
5323 		}
5324 		switch(i%3) {
5325 		case 0:
5326 			key[i/3] = (u8)val << 4;
5327 			break;
5328 		case 1:
5329 			key[i/3] |= (u8)val;
5330 			break;
5331 		}
5332 	}
5333 
5334 	rc = set_wep_key(ai, index, key, i/3, 1, 1);
5335 	if (rc < 0) {
5336 		airo_print_err(ai->dev->name, "failed to set WEP key at index "
5337 		               "%d: %d.", index, rc);
5338 	}
5339 }
5340 
proc_wepkey_open(struct inode * inode,struct file * file)5341 static int proc_wepkey_open(struct inode *inode, struct file *file)
5342 {
5343 	struct proc_data *data;
5344 	struct net_device *dev = pde_data(inode);
5345 	struct airo_info *ai = dev->ml_priv;
5346 	char *ptr;
5347 	WepKeyRid wkr;
5348 	__le16 lastindex;
5349 	int j = 0;
5350 	int rc;
5351 
5352 	if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5353 		return -ENOMEM;
5354 	memset(&wkr, 0, sizeof(wkr));
5355 	data = file->private_data;
5356 	if ((data->rbuffer = kzalloc(180, GFP_KERNEL)) == NULL) {
5357 		kfree (file->private_data);
5358 		return -ENOMEM;
5359 	}
5360 	data->writelen = 0;
5361 	data->maxwritelen = 80;
5362 	if ((data->wbuffer = kzalloc(80, GFP_KERNEL)) == NULL) {
5363 		kfree (data->rbuffer);
5364 		kfree (file->private_data);
5365 		return -ENOMEM;
5366 	}
5367 	data->on_close = proc_wepkey_on_close;
5368 
5369 	ptr = data->rbuffer;
5370 	strcpy(ptr, "No wep keys\n");
5371 	rc = readWepKeyRid(ai, &wkr, 1, 1);
5372 	if (rc == SUCCESS) do {
5373 		lastindex = wkr.kindex;
5374 		if (wkr.kindex == cpu_to_le16(0xffff)) {
5375 			j += sprintf(ptr+j, "Tx key = %d\n",
5376 				     (int)wkr.mac[0]);
5377 		} else {
5378 			j += sprintf(ptr+j, "Key %d set with length = %d\n",
5379 				     le16_to_cpu(wkr.kindex),
5380 				     le16_to_cpu(wkr.klen));
5381 		}
5382 		readWepKeyRid(ai, &wkr, 0, 1);
5383 	} while ((lastindex != wkr.kindex) && (j < 180-30));
5384 
5385 	data->readlen = strlen(data->rbuffer);
5386 	return 0;
5387 }
5388 
proc_SSID_open(struct inode * inode,struct file * file)5389 static int proc_SSID_open(struct inode *inode, struct file *file)
5390 {
5391 	struct proc_data *data;
5392 	struct net_device *dev = pde_data(inode);
5393 	struct airo_info *ai = dev->ml_priv;
5394 	int i;
5395 	char *ptr;
5396 	SsidRid SSID_rid;
5397 
5398 	if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5399 		return -ENOMEM;
5400 	data = file->private_data;
5401 	if ((data->rbuffer = kmalloc(104, GFP_KERNEL)) == NULL) {
5402 		kfree (file->private_data);
5403 		return -ENOMEM;
5404 	}
5405 	data->writelen = 0;
5406 	data->maxwritelen = 33*3;
5407 	/* allocate maxwritelen + 1; we'll want a sentinel */
5408 	if ((data->wbuffer = kzalloc(33*3 + 1, GFP_KERNEL)) == NULL) {
5409 		kfree (data->rbuffer);
5410 		kfree (file->private_data);
5411 		return -ENOMEM;
5412 	}
5413 	data->on_close = proc_SSID_on_close;
5414 
5415 	readSsidRid(ai, &SSID_rid);
5416 	ptr = data->rbuffer;
5417 	for (i = 0; i < 3; i++) {
5418 		int j;
5419 		size_t len = le16_to_cpu(SSID_rid.ssids[i].len);
5420 		if (!len)
5421 			break;
5422 		if (len > 32)
5423 			len = 32;
5424 		for (j = 0; j < len && SSID_rid.ssids[i].ssid[j]; j++)
5425 			*ptr++ = SSID_rid.ssids[i].ssid[j];
5426 		*ptr++ = '\n';
5427 	}
5428 	*ptr = '\0';
5429 	data->readlen = strlen(data->rbuffer);
5430 	return 0;
5431 }
5432 
proc_APList_open(struct inode * inode,struct file * file)5433 static int proc_APList_open(struct inode *inode, struct file *file)
5434 {
5435 	struct proc_data *data;
5436 	struct net_device *dev = pde_data(inode);
5437 	struct airo_info *ai = dev->ml_priv;
5438 	int i;
5439 	char *ptr;
5440 	APListRid *APList_rid = &ai->APList;
5441 
5442 	if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5443 		return -ENOMEM;
5444 	data = file->private_data;
5445 	if ((data->rbuffer = kmalloc(104, GFP_KERNEL)) == NULL) {
5446 		kfree (file->private_data);
5447 		return -ENOMEM;
5448 	}
5449 	data->writelen = 0;
5450 	data->maxwritelen = 4*6*3;
5451 	if ((data->wbuffer = kzalloc(data->maxwritelen, GFP_KERNEL)) == NULL) {
5452 		kfree (data->rbuffer);
5453 		kfree (file->private_data);
5454 		return -ENOMEM;
5455 	}
5456 	data->on_close = proc_APList_on_close;
5457 
5458 	ptr = data->rbuffer;
5459 	for (i = 0; i < 4; i++) {
5460 // We end when we find a zero MAC
5461 		if (!*(int*)APList_rid->ap[i] &&
5462 		     !*(int*)&APList_rid->ap[i][2]) break;
5463 		ptr += sprintf(ptr, "%pM\n", APList_rid->ap[i]);
5464 	}
5465 	if (i==0) ptr += sprintf(ptr, "Not using specific APs\n");
5466 
5467 	*ptr = '\0';
5468 	data->readlen = strlen(data->rbuffer);
5469 	return 0;
5470 }
5471 
proc_BSSList_open(struct inode * inode,struct file * file)5472 static int proc_BSSList_open(struct inode *inode, struct file *file)
5473 {
5474 	struct proc_data *data;
5475 	struct net_device *dev = pde_data(inode);
5476 	struct airo_info *ai = dev->ml_priv;
5477 	char *ptr;
5478 	BSSListRid BSSList_rid;
5479 	int rc;
5480 	/* If doLoseSync is not 1, we won't do a Lose Sync */
5481 	int doLoseSync = -1;
5482 
5483 	if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL)
5484 		return -ENOMEM;
5485 	data = file->private_data;
5486 	if ((data->rbuffer = kmalloc(1024, GFP_KERNEL)) == NULL) {
5487 		kfree (file->private_data);
5488 		return -ENOMEM;
5489 	}
5490 	data->writelen = 0;
5491 	data->maxwritelen = 0;
5492 	data->wbuffer = NULL;
5493 	data->on_close = NULL;
5494 
5495 	if (file->f_mode & FMODE_WRITE) {
5496 		if (!(file->f_mode & FMODE_READ)) {
5497 			Cmd cmd;
5498 			Resp rsp;
5499 
5500 			if (ai->flags & FLAG_RADIO_MASK) {
5501 				kfree(data->rbuffer);
5502 				kfree(file->private_data);
5503 				return -ENETDOWN;
5504 			}
5505 			memset(&cmd, 0, sizeof(cmd));
5506 			cmd.cmd = CMD_LISTBSS;
5507 			if (down_interruptible(&ai->sem)) {
5508 				kfree(data->rbuffer);
5509 				kfree(file->private_data);
5510 				return -ERESTARTSYS;
5511 			}
5512 			issuecommand(ai, &cmd, &rsp, true);
5513 			up(&ai->sem);
5514 			data->readlen = 0;
5515 			return 0;
5516 		}
5517 		doLoseSync = 1;
5518 	}
5519 	ptr = data->rbuffer;
5520 	/* There is a race condition here if there are concurrent opens.
5521            Since it is a rare condition, we'll just live with it, otherwise
5522            we have to add a spin lock... */
5523 	rc = readBSSListRid(ai, doLoseSync, &BSSList_rid);
5524 	while (rc == 0 && BSSList_rid.index != cpu_to_le16(0xffff)) {
5525 		ptr += sprintf(ptr, "%pM %.*s rssi = %d",
5526 			       BSSList_rid.bssid,
5527 				(int)BSSList_rid.ssidLen,
5528 				BSSList_rid.ssid,
5529 				le16_to_cpu(BSSList_rid.dBm));
5530 		ptr += sprintf(ptr, " channel = %d %s %s %s %s\n",
5531 				le16_to_cpu(BSSList_rid.dsChannel),
5532 				BSSList_rid.cap & CAP_ESS ? "ESS" : "",
5533 				BSSList_rid.cap & CAP_IBSS ? "adhoc" : "",
5534 				BSSList_rid.cap & CAP_PRIVACY ? "wep" : "",
5535 				BSSList_rid.cap & CAP_SHORTHDR ? "shorthdr" : "");
5536 		rc = readBSSListRid(ai, 0, &BSSList_rid);
5537 	}
5538 	*ptr = '\0';
5539 	data->readlen = strlen(data->rbuffer);
5540 	return 0;
5541 }
5542 
proc_close(struct inode * inode,struct file * file)5543 static int proc_close(struct inode *inode, struct file *file)
5544 {
5545 	struct proc_data *data = file->private_data;
5546 
5547 	if (data->on_close != NULL)
5548 		data->on_close(inode, file);
5549 	kfree(data->rbuffer);
5550 	kfree(data->wbuffer);
5551 	kfree(data);
5552 	return 0;
5553 }
5554 
5555 /* Since the card doesn't automatically switch to the right WEP mode,
5556    we will make it do it.  If the card isn't associated, every secs we
5557    will switch WEP modes to see if that will help.  If the card is
5558    associated we will check every minute to see if anything has
5559    changed. */
timer_func(struct net_device * dev)5560 static void timer_func(struct net_device *dev)
5561 {
5562 	struct airo_info *apriv = dev->ml_priv;
5563 
5564 /* We don't have a link so try changing the authtype */
5565 	readConfigRid(apriv, 0);
5566 	disable_MAC(apriv, 0);
5567 	switch(apriv->config.authType) {
5568 		case AUTH_ENCRYPT:
5569 /* So drop to OPEN */
5570 			apriv->config.authType = AUTH_OPEN;
5571 			break;
5572 		case AUTH_SHAREDKEY:
5573 			if (apriv->keyindex < auto_wep) {
5574 				set_wep_tx_idx(apriv, apriv->keyindex, 0, 0);
5575 				apriv->config.authType = AUTH_SHAREDKEY;
5576 				apriv->keyindex++;
5577 			} else {
5578 			        /* Drop to ENCRYPT */
5579 				apriv->keyindex = 0;
5580 				set_wep_tx_idx(apriv, apriv->defindex, 0, 0);
5581 				apriv->config.authType = AUTH_ENCRYPT;
5582 			}
5583 			break;
5584 		default:  /* We'll escalate to SHAREDKEY */
5585 			apriv->config.authType = AUTH_SHAREDKEY;
5586 	}
5587 	set_bit (FLAG_COMMIT, &apriv->flags);
5588 	writeConfigRid(apriv, 0);
5589 	enable_MAC(apriv, 0);
5590 	up(&apriv->sem);
5591 
5592 /* Schedule check to see if the change worked */
5593 	clear_bit(JOB_AUTOWEP, &apriv->jobs);
5594 	apriv->expires = RUN_AT(HZ*3);
5595 }
5596 
5597 #ifdef CONFIG_PCI
airo_pci_probe(struct pci_dev * pdev,const struct pci_device_id * pent)5598 static int airo_pci_probe(struct pci_dev *pdev,
5599 				    const struct pci_device_id *pent)
5600 {
5601 	struct net_device *dev;
5602 
5603 	if (pci_enable_device(pdev))
5604 		return -ENODEV;
5605 	pci_set_master(pdev);
5606 
5607 	if (pdev->device == 0x5000 || pdev->device == 0xa504)
5608 			dev = _init_airo_card(pdev->irq, pdev->resource[0].start, 0, pdev, &pdev->dev);
5609 	else
5610 			dev = _init_airo_card(pdev->irq, pdev->resource[2].start, 0, pdev, &pdev->dev);
5611 	if (!dev) {
5612 		pci_disable_device(pdev);
5613 		return -ENODEV;
5614 	}
5615 
5616 	pci_set_drvdata(pdev, dev);
5617 	return 0;
5618 }
5619 
airo_pci_remove(struct pci_dev * pdev)5620 static void airo_pci_remove(struct pci_dev *pdev)
5621 {
5622 	struct net_device *dev = pci_get_drvdata(pdev);
5623 
5624 	airo_print_info(dev->name, "Unregistering...");
5625 	stop_airo_card(dev, 1);
5626 	pci_disable_device(pdev);
5627 }
5628 
airo_pci_suspend(struct device * dev_d)5629 static int __maybe_unused airo_pci_suspend(struct device *dev_d)
5630 {
5631 	struct net_device *dev = dev_get_drvdata(dev_d);
5632 	struct airo_info *ai = dev->ml_priv;
5633 	Cmd cmd;
5634 	Resp rsp;
5635 
5636 	if (!ai->SSID)
5637 		ai->SSID = kmalloc(sizeof(SsidRid), GFP_KERNEL);
5638 	if (!ai->SSID)
5639 		return -ENOMEM;
5640 	readSsidRid(ai, ai->SSID);
5641 	memset(&cmd, 0, sizeof(cmd));
5642 	/* the lock will be released at the end of the resume callback */
5643 	if (down_interruptible(&ai->sem))
5644 		return -EAGAIN;
5645 	disable_MAC(ai, 0);
5646 	netif_device_detach(dev);
5647 	ai->power = PMSG_SUSPEND;
5648 	cmd.cmd = HOSTSLEEP;
5649 	issuecommand(ai, &cmd, &rsp, true);
5650 
5651 	device_wakeup_enable(dev_d);
5652 	return 0;
5653 }
5654 
airo_pci_resume(struct device * dev_d)5655 static int __maybe_unused airo_pci_resume(struct device *dev_d)
5656 {
5657 	struct net_device *dev = dev_get_drvdata(dev_d);
5658 	struct airo_info *ai = dev->ml_priv;
5659 	pci_power_t prev_state = to_pci_dev(dev_d)->current_state;
5660 
5661 	device_wakeup_disable(dev_d);
5662 
5663 	if (prev_state != PCI_D1) {
5664 		reset_card(dev, 0);
5665 		mpi_init_descriptors(ai);
5666 		setup_card(ai, dev, 0);
5667 		clear_bit(FLAG_RADIO_OFF, &ai->flags);
5668 		clear_bit(FLAG_PENDING_XMIT, &ai->flags);
5669 	} else {
5670 		OUT4500(ai, EVACK, EV_AWAKEN);
5671 		OUT4500(ai, EVACK, EV_AWAKEN);
5672 		msleep(100);
5673 	}
5674 
5675 	set_bit(FLAG_COMMIT, &ai->flags);
5676 	disable_MAC(ai, 0);
5677         msleep(200);
5678 	if (ai->SSID) {
5679 		writeSsidRid(ai, ai->SSID, 0);
5680 		kfree(ai->SSID);
5681 		ai->SSID = NULL;
5682 	}
5683 	writeAPListRid(ai, &ai->APList, 0);
5684 	writeConfigRid(ai, 0);
5685 	enable_MAC(ai, 0);
5686 	ai->power = PMSG_ON;
5687 	netif_device_attach(dev);
5688 	netif_wake_queue(dev);
5689 	enable_interrupts(ai);
5690 	up(&ai->sem);
5691 	return 0;
5692 }
5693 #endif
5694 
airo_init_module(void)5695 static int __init airo_init_module(void)
5696 {
5697 	int i;
5698 
5699 	proc_kuid = make_kuid(&init_user_ns, proc_uid);
5700 	proc_kgid = make_kgid(&init_user_ns, proc_gid);
5701 	if (!uid_valid(proc_kuid) || !gid_valid(proc_kgid))
5702 		return -EINVAL;
5703 
5704 	airo_entry = proc_mkdir_mode("driver/aironet", airo_perm, NULL);
5705 
5706 	if (airo_entry)
5707 		proc_set_user(airo_entry, proc_kuid, proc_kgid);
5708 
5709 	for (i = 0; i < 4 && io[i] && irq[i]; i++) {
5710 		airo_print_info("", "Trying to configure ISA adapter at irq=%d "
5711 			"io = 0x%x", irq[i], io[i]);
5712 		if (init_airo_card(irq[i], io[i], 0, NULL)) {
5713 			/* do nothing */ ;
5714 		}
5715 	}
5716 
5717 #ifdef CONFIG_PCI
5718 	airo_print_info("", "Probing for PCI adapters");
5719 	i = pci_register_driver(&airo_driver);
5720 	airo_print_info("", "Finished probing for PCI adapters");
5721 
5722 	if (i) {
5723 		remove_proc_entry("driver/aironet", NULL);
5724 		return i;
5725 	}
5726 #endif
5727 
5728 	/* Always exit with success, as we are a library module
5729 	 * as well as a driver module
5730 	 */
5731 	return 0;
5732 }
5733 
airo_cleanup_module(void)5734 static void __exit airo_cleanup_module(void)
5735 {
5736 	struct airo_info *ai;
5737 	while (!list_empty(&airo_devices)) {
5738 		ai = list_entry(airo_devices.next, struct airo_info, dev_list);
5739 		airo_print_info(ai->dev->name, "Unregistering...");
5740 		stop_airo_card(ai->dev, 1);
5741 	}
5742 #ifdef CONFIG_PCI
5743 	pci_unregister_driver(&airo_driver);
5744 #endif
5745 	remove_proc_entry("driver/aironet", NULL);
5746 }
5747 
5748 /*
5749  * Initial Wireless Extension code for Aironet driver by :
5750  *	Jean Tourrilhes <jt@hpl.hp.com> - HPL - 17 November 00
5751  * Conversion to new driver API by :
5752  *	Jean Tourrilhes <jt@hpl.hp.com> - HPL - 26 March 02
5753  * Javier also did a good amount of work here, adding some new extensions
5754  * and fixing my code. Let's just say that without him this code just
5755  * would not work at all... - Jean II
5756  */
5757 
airo_rssi_to_dbm(tdsRssiEntry * rssi_rid,u8 rssi)5758 static u8 airo_rssi_to_dbm (tdsRssiEntry *rssi_rid, u8 rssi)
5759 {
5760 	if (!rssi_rid)
5761 		return 0;
5762 
5763 	return (0x100 - rssi_rid[rssi].rssidBm);
5764 }
5765 
airo_dbm_to_pct(tdsRssiEntry * rssi_rid,u8 dbm)5766 static u8 airo_dbm_to_pct (tdsRssiEntry *rssi_rid, u8 dbm)
5767 {
5768 	int i;
5769 
5770 	if (!rssi_rid)
5771 		return 0;
5772 
5773 	for (i = 0; i < 256; i++)
5774 		if (rssi_rid[i].rssidBm == dbm)
5775 			return rssi_rid[i].rssipct;
5776 
5777 	return 0;
5778 }
5779 
5780 
airo_get_quality(StatusRid * status_rid,CapabilityRid * cap_rid)5781 static int airo_get_quality (StatusRid *status_rid, CapabilityRid *cap_rid)
5782 {
5783 	int quality = 0;
5784 	u16 sq;
5785 
5786 	if ((status_rid->mode & cpu_to_le16(0x3f)) != cpu_to_le16(0x3f))
5787 		return 0;
5788 
5789 	if (!(cap_rid->hardCap & cpu_to_le16(8)))
5790 		return 0;
5791 
5792 	sq = le16_to_cpu(status_rid->signalQuality);
5793 	if (memcmp(cap_rid->prodName, "350", 3))
5794 		if (sq > 0x20)
5795 			quality = 0;
5796 		else
5797 			quality = 0x20 - sq;
5798 	else
5799 		if (sq > 0xb0)
5800 			quality = 0;
5801 		else if (sq < 0x10)
5802 			quality = 0xa0;
5803 		else
5804 			quality = 0xb0 - sq;
5805 	return quality;
5806 }
5807 
5808 #define airo_get_max_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x20 : 0xa0)
5809 #define airo_get_avg_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x10 : 0x50)
5810 
5811 /*------------------------------------------------------------------*/
5812 /*
5813  * Wireless Handler : get protocol name
5814  */
airo_get_name(struct net_device * dev,struct iw_request_info * info,char * cwrq,char * extra)5815 static int airo_get_name(struct net_device *dev,
5816 			 struct iw_request_info *info,
5817 			 char *cwrq,
5818 			 char *extra)
5819 {
5820 	strcpy(cwrq, "IEEE 802.11-DS");
5821 	return 0;
5822 }
5823 
5824 /*------------------------------------------------------------------*/
5825 /*
5826  * Wireless Handler : set frequency
5827  */
airo_set_freq(struct net_device * dev,struct iw_request_info * info,struct iw_freq * fwrq,char * extra)5828 static int airo_set_freq(struct net_device *dev,
5829 			 struct iw_request_info *info,
5830 			 struct iw_freq *fwrq,
5831 			 char *extra)
5832 {
5833 	struct airo_info *local = dev->ml_priv;
5834 	int rc = -EINPROGRESS;		/* Call commit handler */
5835 
5836 	/* If setting by frequency, convert to a channel */
5837 	if (fwrq->e == 1) {
5838 		int f = fwrq->m / 100000;
5839 
5840 		/* Hack to fall through... */
5841 		fwrq->e = 0;
5842 		fwrq->m = ieee80211_frequency_to_channel(f);
5843 	}
5844 	/* Setting by channel number */
5845 	if (fwrq->m < 0 || fwrq->m > 1000 || fwrq->e > 0)
5846 		rc = -EOPNOTSUPP;
5847 	else {
5848 		int channel = fwrq->m;
5849 		/* We should do a better check than that,
5850 		 * based on the card capability !!! */
5851 		if ((channel < 1) || (channel > 14)) {
5852 			airo_print_dbg(dev->name, "New channel value of %d is invalid!",
5853 				fwrq->m);
5854 			rc = -EINVAL;
5855 		} else {
5856 			readConfigRid(local, 1);
5857 			/* Yes ! We can set it !!! */
5858 			local->config.channelSet = cpu_to_le16(channel);
5859 			set_bit (FLAG_COMMIT, &local->flags);
5860 		}
5861 	}
5862 	return rc;
5863 }
5864 
5865 /*------------------------------------------------------------------*/
5866 /*
5867  * Wireless Handler : get frequency
5868  */
airo_get_freq(struct net_device * dev,struct iw_request_info * info,struct iw_freq * fwrq,char * extra)5869 static int airo_get_freq(struct net_device *dev,
5870 			 struct iw_request_info *info,
5871 			 struct iw_freq *fwrq,
5872 			 char *extra)
5873 {
5874 	struct airo_info *local = dev->ml_priv;
5875 	StatusRid status_rid;		/* Card status info */
5876 	int ch;
5877 
5878 	readConfigRid(local, 1);
5879 	if ((local->config.opmode & MODE_CFG_MASK) == MODE_STA_ESS)
5880 		status_rid.channel = local->config.channelSet;
5881 	else
5882 		readStatusRid(local, &status_rid, 1);
5883 
5884 	ch = le16_to_cpu(status_rid.channel);
5885 	if ((ch > 0) && (ch < 15)) {
5886 		fwrq->m = 100000 *
5887 			ieee80211_channel_to_frequency(ch, NL80211_BAND_2GHZ);
5888 		fwrq->e = 1;
5889 	} else {
5890 		fwrq->m = ch;
5891 		fwrq->e = 0;
5892 	}
5893 
5894 	return 0;
5895 }
5896 
5897 /*------------------------------------------------------------------*/
5898 /*
5899  * Wireless Handler : set ESSID
5900  */
airo_set_essid(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)5901 static int airo_set_essid(struct net_device *dev,
5902 			  struct iw_request_info *info,
5903 			  struct iw_point *dwrq,
5904 			  char *extra)
5905 {
5906 	struct airo_info *local = dev->ml_priv;
5907 	SsidRid SSID_rid;		/* SSIDs */
5908 
5909 	/* Reload the list of current SSID */
5910 	readSsidRid(local, &SSID_rid);
5911 
5912 	/* Check if we asked for `any' */
5913 	if (dwrq->flags == 0) {
5914 		/* Just send an empty SSID list */
5915 		memset(&SSID_rid, 0, sizeof(SSID_rid));
5916 	} else {
5917 		unsigned index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
5918 
5919 		/* Check the size of the string */
5920 		if (dwrq->length > IW_ESSID_MAX_SIZE)
5921 			return -E2BIG ;
5922 
5923 		/* Check if index is valid */
5924 		if (index >= ARRAY_SIZE(SSID_rid.ssids))
5925 			return -EINVAL;
5926 
5927 		/* Set the SSID */
5928 		memset(SSID_rid.ssids[index].ssid, 0,
5929 		       sizeof(SSID_rid.ssids[index].ssid));
5930 		memcpy(SSID_rid.ssids[index].ssid, extra, dwrq->length);
5931 		SSID_rid.ssids[index].len = cpu_to_le16(dwrq->length);
5932 	}
5933 	SSID_rid.len = cpu_to_le16(sizeof(SSID_rid));
5934 	/* Write it to the card */
5935 	disable_MAC(local, 1);
5936 	writeSsidRid(local, &SSID_rid, 1);
5937 	enable_MAC(local, 1);
5938 
5939 	return 0;
5940 }
5941 
5942 /*------------------------------------------------------------------*/
5943 /*
5944  * Wireless Handler : get ESSID
5945  */
airo_get_essid(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)5946 static int airo_get_essid(struct net_device *dev,
5947 			  struct iw_request_info *info,
5948 			  struct iw_point *dwrq,
5949 			  char *extra)
5950 {
5951 	struct airo_info *local = dev->ml_priv;
5952 	StatusRid status_rid;		/* Card status info */
5953 
5954 	readStatusRid(local, &status_rid, 1);
5955 
5956 	/* Note : if dwrq->flags != 0, we should
5957 	 * get the relevant SSID from the SSID list... */
5958 
5959 	/* Get the current SSID */
5960 	memcpy(extra, status_rid.SSID, le16_to_cpu(status_rid.SSIDlen));
5961 	/* If none, we may want to get the one that was set */
5962 
5963 	/* Push it out ! */
5964 	dwrq->length = le16_to_cpu(status_rid.SSIDlen);
5965 	dwrq->flags = 1; /* active */
5966 
5967 	return 0;
5968 }
5969 
5970 /*------------------------------------------------------------------*/
5971 /*
5972  * Wireless Handler : set AP address
5973  */
airo_set_wap(struct net_device * dev,struct iw_request_info * info,struct sockaddr * awrq,char * extra)5974 static int airo_set_wap(struct net_device *dev,
5975 			struct iw_request_info *info,
5976 			struct sockaddr *awrq,
5977 			char *extra)
5978 {
5979 	struct airo_info *local = dev->ml_priv;
5980 	Cmd cmd;
5981 	Resp rsp;
5982 	APListRid *APList_rid = &local->APList;
5983 
5984 	if (awrq->sa_family != ARPHRD_ETHER)
5985 		return -EINVAL;
5986 	else if (is_broadcast_ether_addr(awrq->sa_data) ||
5987 		 is_zero_ether_addr(awrq->sa_data)) {
5988 		memset(&cmd, 0, sizeof(cmd));
5989 		cmd.cmd = CMD_LOSE_SYNC;
5990 		if (down_interruptible(&local->sem))
5991 			return -ERESTARTSYS;
5992 		issuecommand(local, &cmd, &rsp, true);
5993 		up(&local->sem);
5994 	} else {
5995 		memset(APList_rid, 0, sizeof(*APList_rid));
5996 		APList_rid->len = cpu_to_le16(sizeof(*APList_rid));
5997 		memcpy(APList_rid->ap[0], awrq->sa_data, ETH_ALEN);
5998 		disable_MAC(local, 1);
5999 		writeAPListRid(local, APList_rid, 1);
6000 		enable_MAC(local, 1);
6001 	}
6002 	return 0;
6003 }
6004 
6005 /*------------------------------------------------------------------*/
6006 /*
6007  * Wireless Handler : get AP address
6008  */
airo_get_wap(struct net_device * dev,struct iw_request_info * info,struct sockaddr * awrq,char * extra)6009 static int airo_get_wap(struct net_device *dev,
6010 			struct iw_request_info *info,
6011 			struct sockaddr *awrq,
6012 			char *extra)
6013 {
6014 	struct airo_info *local = dev->ml_priv;
6015 	StatusRid status_rid;		/* Card status info */
6016 
6017 	readStatusRid(local, &status_rid, 1);
6018 
6019 	/* Tentative. This seems to work, wow, I'm lucky !!! */
6020 	memcpy(awrq->sa_data, status_rid.bssid[0], ETH_ALEN);
6021 	awrq->sa_family = ARPHRD_ETHER;
6022 
6023 	return 0;
6024 }
6025 
6026 /*------------------------------------------------------------------*/
6027 /*
6028  * Wireless Handler : set Nickname
6029  */
airo_set_nick(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6030 static int airo_set_nick(struct net_device *dev,
6031 			 struct iw_request_info *info,
6032 			 struct iw_point *dwrq,
6033 			 char *extra)
6034 {
6035 	struct airo_info *local = dev->ml_priv;
6036 
6037 	/* Check the size of the string */
6038 	if (dwrq->length > 16) {
6039 		return -E2BIG;
6040 	}
6041 	readConfigRid(local, 1);
6042 	memset(local->config.nodeName, 0, sizeof(local->config.nodeName));
6043 	memcpy(local->config.nodeName, extra, dwrq->length);
6044 	set_bit (FLAG_COMMIT, &local->flags);
6045 
6046 	return -EINPROGRESS;		/* Call commit handler */
6047 }
6048 
6049 /*------------------------------------------------------------------*/
6050 /*
6051  * Wireless Handler : get Nickname
6052  */
airo_get_nick(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6053 static int airo_get_nick(struct net_device *dev,
6054 			 struct iw_request_info *info,
6055 			 struct iw_point *dwrq,
6056 			 char *extra)
6057 {
6058 	struct airo_info *local = dev->ml_priv;
6059 
6060 	readConfigRid(local, 1);
6061 	strncpy(extra, local->config.nodeName, 16);
6062 	extra[16] = '\0';
6063 	dwrq->length = strlen(extra);
6064 
6065 	return 0;
6066 }
6067 
6068 /*------------------------------------------------------------------*/
6069 /*
6070  * Wireless Handler : set Bit-Rate
6071  */
airo_set_rate(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6072 static int airo_set_rate(struct net_device *dev,
6073 			 struct iw_request_info *info,
6074 			 struct iw_param *vwrq,
6075 			 char *extra)
6076 {
6077 	struct airo_info *local = dev->ml_priv;
6078 	CapabilityRid cap_rid;		/* Card capability info */
6079 	u8	brate = 0;
6080 	int	i;
6081 
6082 	/* First : get a valid bit rate value */
6083 	readCapabilityRid(local, &cap_rid, 1);
6084 
6085 	/* Which type of value ? */
6086 	if ((vwrq->value < 8) && (vwrq->value >= 0)) {
6087 		/* Setting by rate index */
6088 		/* Find value in the magic rate table */
6089 		brate = cap_rid.supportedRates[vwrq->value];
6090 	} else {
6091 		/* Setting by frequency value */
6092 		u8	normvalue = (u8) (vwrq->value/500000);
6093 
6094 		/* Check if rate is valid */
6095 		for (i = 0 ; i < 8 ; i++) {
6096 			if (normvalue == cap_rid.supportedRates[i]) {
6097 				brate = normvalue;
6098 				break;
6099 			}
6100 		}
6101 	}
6102 	/* -1 designed the max rate (mostly auto mode) */
6103 	if (vwrq->value == -1) {
6104 		/* Get the highest available rate */
6105 		for (i = 0 ; i < 8 ; i++) {
6106 			if (cap_rid.supportedRates[i] == 0)
6107 				break;
6108 		}
6109 		if (i != 0)
6110 			brate = cap_rid.supportedRates[i - 1];
6111 	}
6112 	/* Check that it is valid */
6113 	if (brate == 0) {
6114 		return -EINVAL;
6115 	}
6116 
6117 	readConfigRid(local, 1);
6118 	/* Now, check if we want a fixed or auto value */
6119 	if (vwrq->fixed == 0) {
6120 		/* Fill all the rates up to this max rate */
6121 		memset(local->config.rates, 0, 8);
6122 		for (i = 0 ; i < 8 ; i++) {
6123 			local->config.rates[i] = cap_rid.supportedRates[i];
6124 			if (local->config.rates[i] == brate)
6125 				break;
6126 		}
6127 	} else {
6128 		/* Fixed mode */
6129 		/* One rate, fixed */
6130 		memset(local->config.rates, 0, 8);
6131 		local->config.rates[0] = brate;
6132 	}
6133 	set_bit (FLAG_COMMIT, &local->flags);
6134 
6135 	return -EINPROGRESS;		/* Call commit handler */
6136 }
6137 
6138 /*------------------------------------------------------------------*/
6139 /*
6140  * Wireless Handler : get Bit-Rate
6141  */
airo_get_rate(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6142 static int airo_get_rate(struct net_device *dev,
6143 			 struct iw_request_info *info,
6144 			 struct iw_param *vwrq,
6145 			 char *extra)
6146 {
6147 	struct airo_info *local = dev->ml_priv;
6148 	StatusRid status_rid;		/* Card status info */
6149 
6150 	readStatusRid(local, &status_rid, 1);
6151 
6152 	vwrq->value = le16_to_cpu(status_rid.currentXmitRate) * 500000;
6153 	/* If more than one rate, set auto */
6154 	readConfigRid(local, 1);
6155 	vwrq->fixed = (local->config.rates[1] == 0);
6156 
6157 	return 0;
6158 }
6159 
6160 /*------------------------------------------------------------------*/
6161 /*
6162  * Wireless Handler : set RTS threshold
6163  */
airo_set_rts(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6164 static int airo_set_rts(struct net_device *dev,
6165 			struct iw_request_info *info,
6166 			struct iw_param *vwrq,
6167 			char *extra)
6168 {
6169 	struct airo_info *local = dev->ml_priv;
6170 	int rthr = vwrq->value;
6171 
6172 	if (vwrq->disabled)
6173 		rthr = AIRO_DEF_MTU;
6174 	if ((rthr < 0) || (rthr > AIRO_DEF_MTU)) {
6175 		return -EINVAL;
6176 	}
6177 	readConfigRid(local, 1);
6178 	local->config.rtsThres = cpu_to_le16(rthr);
6179 	set_bit (FLAG_COMMIT, &local->flags);
6180 
6181 	return -EINPROGRESS;		/* Call commit handler */
6182 }
6183 
6184 /*------------------------------------------------------------------*/
6185 /*
6186  * Wireless Handler : get RTS threshold
6187  */
airo_get_rts(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6188 static int airo_get_rts(struct net_device *dev,
6189 			struct iw_request_info *info,
6190 			struct iw_param *vwrq,
6191 			char *extra)
6192 {
6193 	struct airo_info *local = dev->ml_priv;
6194 
6195 	readConfigRid(local, 1);
6196 	vwrq->value = le16_to_cpu(local->config.rtsThres);
6197 	vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU);
6198 	vwrq->fixed = 1;
6199 
6200 	return 0;
6201 }
6202 
6203 /*------------------------------------------------------------------*/
6204 /*
6205  * Wireless Handler : set Fragmentation threshold
6206  */
airo_set_frag(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6207 static int airo_set_frag(struct net_device *dev,
6208 			 struct iw_request_info *info,
6209 			 struct iw_param *vwrq,
6210 			 char *extra)
6211 {
6212 	struct airo_info *local = dev->ml_priv;
6213 	int fthr = vwrq->value;
6214 
6215 	if (vwrq->disabled)
6216 		fthr = AIRO_DEF_MTU;
6217 	if ((fthr < 256) || (fthr > AIRO_DEF_MTU)) {
6218 		return -EINVAL;
6219 	}
6220 	fthr &= ~0x1;	/* Get an even value - is it really needed ??? */
6221 	readConfigRid(local, 1);
6222 	local->config.fragThresh = cpu_to_le16(fthr);
6223 	set_bit (FLAG_COMMIT, &local->flags);
6224 
6225 	return -EINPROGRESS;		/* Call commit handler */
6226 }
6227 
6228 /*------------------------------------------------------------------*/
6229 /*
6230  * Wireless Handler : get Fragmentation threshold
6231  */
airo_get_frag(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6232 static int airo_get_frag(struct net_device *dev,
6233 			 struct iw_request_info *info,
6234 			 struct iw_param *vwrq,
6235 			 char *extra)
6236 {
6237 	struct airo_info *local = dev->ml_priv;
6238 
6239 	readConfigRid(local, 1);
6240 	vwrq->value = le16_to_cpu(local->config.fragThresh);
6241 	vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU);
6242 	vwrq->fixed = 1;
6243 
6244 	return 0;
6245 }
6246 
6247 /*------------------------------------------------------------------*/
6248 /*
6249  * Wireless Handler : set Mode of Operation
6250  */
airo_set_mode(struct net_device * dev,struct iw_request_info * info,__u32 * uwrq,char * extra)6251 static int airo_set_mode(struct net_device *dev,
6252 			 struct iw_request_info *info,
6253 			 __u32 *uwrq,
6254 			 char *extra)
6255 {
6256 	struct airo_info *local = dev->ml_priv;
6257 	int reset = 0;
6258 
6259 	readConfigRid(local, 1);
6260 	if (sniffing_mode(local))
6261 		reset = 1;
6262 
6263 	switch(*uwrq) {
6264 		case IW_MODE_ADHOC:
6265 			local->config.opmode &= ~MODE_CFG_MASK;
6266 			local->config.opmode |= MODE_STA_IBSS;
6267 			local->config.rmode &= ~RXMODE_FULL_MASK;
6268 			local->config.scanMode = SCANMODE_ACTIVE;
6269 			clear_bit (FLAG_802_11, &local->flags);
6270 			break;
6271 		case IW_MODE_INFRA:
6272 			local->config.opmode &= ~MODE_CFG_MASK;
6273 			local->config.opmode |= MODE_STA_ESS;
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_MASTER:
6279 			local->config.opmode &= ~MODE_CFG_MASK;
6280 			local->config.opmode |= MODE_AP;
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_REPEAT:
6286 			local->config.opmode &= ~MODE_CFG_MASK;
6287 			local->config.opmode |= MODE_AP_RPTR;
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_MONITOR:
6293 			local->config.opmode &= ~MODE_CFG_MASK;
6294 			local->config.opmode |= MODE_STA_ESS;
6295 			local->config.rmode &= ~RXMODE_FULL_MASK;
6296 			local->config.rmode |= RXMODE_RFMON | RXMODE_DISABLE_802_3_HEADER;
6297 			local->config.scanMode = SCANMODE_PASSIVE;
6298 			set_bit (FLAG_802_11, &local->flags);
6299 			break;
6300 		default:
6301 			return -EINVAL;
6302 	}
6303 	if (reset)
6304 		set_bit (FLAG_RESET, &local->flags);
6305 	set_bit (FLAG_COMMIT, &local->flags);
6306 
6307 	return -EINPROGRESS;		/* Call commit handler */
6308 }
6309 
6310 /*------------------------------------------------------------------*/
6311 /*
6312  * Wireless Handler : get Mode of Operation
6313  */
airo_get_mode(struct net_device * dev,struct iw_request_info * info,__u32 * uwrq,char * extra)6314 static int airo_get_mode(struct net_device *dev,
6315 			 struct iw_request_info *info,
6316 			 __u32 *uwrq,
6317 			 char *extra)
6318 {
6319 	struct airo_info *local = dev->ml_priv;
6320 
6321 	readConfigRid(local, 1);
6322 	/* If not managed, assume it's ad-hoc */
6323 	switch (local->config.opmode & MODE_CFG_MASK) {
6324 		case MODE_STA_ESS:
6325 			*uwrq = IW_MODE_INFRA;
6326 			break;
6327 		case MODE_AP:
6328 			*uwrq = IW_MODE_MASTER;
6329 			break;
6330 		case MODE_AP_RPTR:
6331 			*uwrq = IW_MODE_REPEAT;
6332 			break;
6333 		default:
6334 			*uwrq = IW_MODE_ADHOC;
6335 	}
6336 
6337 	return 0;
6338 }
6339 
valid_index(struct airo_info * ai,int index)6340 static inline int valid_index(struct airo_info *ai, int index)
6341 {
6342 	return (index >= 0) && (index <= ai->max_wep_idx);
6343 }
6344 
6345 /*------------------------------------------------------------------*/
6346 /*
6347  * Wireless Handler : set Encryption Key
6348  */
airo_set_encode(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6349 static int airo_set_encode(struct net_device *dev,
6350 			   struct iw_request_info *info,
6351 			   struct iw_point *dwrq,
6352 			   char *extra)
6353 {
6354 	struct airo_info *local = dev->ml_priv;
6355 	int perm = (dwrq->flags & IW_ENCODE_TEMP ? 0 : 1);
6356 	__le16 currentAuthType = local->config.authType;
6357 	int rc = 0;
6358 
6359 	if (!local->wep_capable)
6360 		return -EOPNOTSUPP;
6361 
6362 	readConfigRid(local, 1);
6363 
6364 	/* Basic checking: do we have a key to set ?
6365 	 * Note : with the new API, it's impossible to get a NULL pointer.
6366 	 * Therefore, we need to check a key size == 0 instead.
6367 	 * New version of iwconfig properly set the IW_ENCODE_NOKEY flag
6368 	 * when no key is present (only change flags), but older versions
6369 	 * don't do it. - Jean II */
6370 	if (dwrq->length > 0) {
6371 		wep_key_t key;
6372 		int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6373 		int current_index;
6374 
6375 		/* Check the size of the key */
6376 		if (dwrq->length > MAX_KEY_SIZE) {
6377 			return -EINVAL;
6378 		}
6379 
6380 		current_index = get_wep_tx_idx(local);
6381 		if (current_index < 0)
6382 			current_index = 0;
6383 
6384 		/* Check the index (none -> use current) */
6385 		if (!valid_index(local, index))
6386 			index = current_index;
6387 
6388 		/* Set the length */
6389 		if (dwrq->length > MIN_KEY_SIZE)
6390 			key.len = MAX_KEY_SIZE;
6391 		else
6392 			key.len = MIN_KEY_SIZE;
6393 		/* Check if the key is not marked as invalid */
6394 		if (!(dwrq->flags & IW_ENCODE_NOKEY)) {
6395 			/* Cleanup */
6396 			memset(key.key, 0, MAX_KEY_SIZE);
6397 			/* Copy the key in the driver */
6398 			memcpy(key.key, extra, dwrq->length);
6399 			/* Send the key to the card */
6400 			rc = set_wep_key(local, index, key.key, key.len, perm, 1);
6401 			if (rc < 0) {
6402 				airo_print_err(local->dev->name, "failed to set"
6403 				               " WEP key at index %d: %d.",
6404 				               index, rc);
6405 				return rc;
6406 			}
6407 		}
6408 		/* WE specify that if a valid key is set, encryption
6409 		 * should be enabled (user may turn it off later)
6410 		 * This is also how "iwconfig ethX key on" works */
6411 		if ((index == current_index) && (key.len > 0) &&
6412 		   (local->config.authType == AUTH_OPEN))
6413 			set_auth_type(local, AUTH_ENCRYPT);
6414 	} else {
6415 		/* Do we want to just set the transmit key index ? */
6416 		int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6417 		if (valid_index(local, index)) {
6418 			rc = set_wep_tx_idx(local, index, perm, 1);
6419 			if (rc < 0) {
6420 				airo_print_err(local->dev->name, "failed to set"
6421 				               " WEP transmit index to %d: %d.",
6422 				               index, rc);
6423 				return rc;
6424 			}
6425 		} else {
6426 			/* Don't complain if only change the mode */
6427 			if (!(dwrq->flags & IW_ENCODE_MODE))
6428 				return -EINVAL;
6429 		}
6430 	}
6431 	/* Read the flags */
6432 	if (dwrq->flags & IW_ENCODE_DISABLED)
6433 		set_auth_type(local, AUTH_OPEN);	/* disable encryption */
6434 	if (dwrq->flags & IW_ENCODE_RESTRICTED)
6435 		set_auth_type(local, AUTH_SHAREDKEY);	/* Only Both */
6436 	if (dwrq->flags & IW_ENCODE_OPEN)
6437 		set_auth_type(local, AUTH_ENCRYPT);	/* Only Wep */
6438 	/* Commit the changes to flags if needed */
6439 	if (local->config.authType != currentAuthType)
6440 		set_bit (FLAG_COMMIT, &local->flags);
6441 	return -EINPROGRESS;		/* Call commit handler */
6442 }
6443 
6444 /*------------------------------------------------------------------*/
6445 /*
6446  * Wireless Handler : get Encryption Key
6447  */
airo_get_encode(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6448 static int airo_get_encode(struct net_device *dev,
6449 			   struct iw_request_info *info,
6450 			   struct iw_point *dwrq,
6451 			   char *extra)
6452 {
6453 	struct airo_info *local = dev->ml_priv;
6454 	int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
6455 	int wep_key_len;
6456 	u8 buf[16];
6457 
6458 	if (!local->wep_capable)
6459 		return -EOPNOTSUPP;
6460 
6461 	readConfigRid(local, 1);
6462 
6463 	/* Check encryption mode */
6464 	switch(local->config.authType)	{
6465 		case AUTH_ENCRYPT:
6466 			dwrq->flags = IW_ENCODE_OPEN;
6467 			break;
6468 		case AUTH_SHAREDKEY:
6469 			dwrq->flags = IW_ENCODE_RESTRICTED;
6470 			break;
6471 		default:
6472 		case AUTH_OPEN:
6473 			dwrq->flags = IW_ENCODE_DISABLED;
6474 			break;
6475 	}
6476 	/* We can't return the key, so set the proper flag and return zero */
6477 	dwrq->flags |= IW_ENCODE_NOKEY;
6478 	memset(extra, 0, 16);
6479 
6480 	/* Which key do we want ? -1 -> tx index */
6481 	if (!valid_index(local, index)) {
6482 		index = get_wep_tx_idx(local);
6483 		if (index < 0)
6484 			index = 0;
6485 	}
6486 	dwrq->flags |= index + 1;
6487 
6488 	/* Copy the key to the user buffer */
6489 	wep_key_len = get_wep_key(local, index, &buf[0], sizeof(buf));
6490 	if (wep_key_len < 0) {
6491 		dwrq->length = 0;
6492 	} else {
6493 		dwrq->length = wep_key_len;
6494 		memcpy(extra, buf, dwrq->length);
6495 	}
6496 
6497 	return 0;
6498 }
6499 
6500 /*------------------------------------------------------------------*/
6501 /*
6502  * Wireless Handler : set extended Encryption parameters
6503  */
airo_set_encodeext(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6504 static int airo_set_encodeext(struct net_device *dev,
6505 			   struct iw_request_info *info,
6506 			    union iwreq_data *wrqu,
6507 			    char *extra)
6508 {
6509 	struct airo_info *local = dev->ml_priv;
6510 	struct iw_point *encoding = &wrqu->encoding;
6511 	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6512 	int perm = (encoding->flags & IW_ENCODE_TEMP ? 0 : 1);
6513 	__le16 currentAuthType = local->config.authType;
6514 	int idx, key_len, alg = ext->alg, set_key = 1, rc;
6515 	wep_key_t key;
6516 
6517 	if (!local->wep_capable)
6518 		return -EOPNOTSUPP;
6519 
6520 	readConfigRid(local, 1);
6521 
6522 	/* Determine and validate the key index */
6523 	idx = encoding->flags & IW_ENCODE_INDEX;
6524 	if (idx) {
6525 		if (!valid_index(local, idx - 1))
6526 			return -EINVAL;
6527 		idx--;
6528 	} else {
6529 		idx = get_wep_tx_idx(local);
6530 		if (idx < 0)
6531 			idx = 0;
6532 	}
6533 
6534 	if (encoding->flags & IW_ENCODE_DISABLED)
6535 		alg = IW_ENCODE_ALG_NONE;
6536 
6537 	if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
6538 		/* Only set transmit key index here, actual
6539 		 * key is set below if needed.
6540 		 */
6541 		rc = set_wep_tx_idx(local, idx, perm, 1);
6542 		if (rc < 0) {
6543 			airo_print_err(local->dev->name, "failed to set "
6544 			               "WEP transmit index to %d: %d.",
6545 			               idx, rc);
6546 			return rc;
6547 		}
6548 		set_key = ext->key_len > 0 ? 1 : 0;
6549 	}
6550 
6551 	if (set_key) {
6552 		/* Set the requested key first */
6553 		memset(key.key, 0, MAX_KEY_SIZE);
6554 		switch (alg) {
6555 		case IW_ENCODE_ALG_NONE:
6556 			key.len = 0;
6557 			break;
6558 		case IW_ENCODE_ALG_WEP:
6559 			if (ext->key_len > MIN_KEY_SIZE) {
6560 				key.len = MAX_KEY_SIZE;
6561 			} else if (ext->key_len > 0) {
6562 				key.len = MIN_KEY_SIZE;
6563 			} else {
6564 				return -EINVAL;
6565 			}
6566 			key_len = min (ext->key_len, key.len);
6567 			memcpy(key.key, ext->key, key_len);
6568 			break;
6569 		default:
6570 			return -EINVAL;
6571 		}
6572 		if (key.len == 0) {
6573 			rc = set_wep_tx_idx(local, idx, perm, 1);
6574 			if (rc < 0) {
6575 				airo_print_err(local->dev->name,
6576 					       "failed to set WEP transmit index to %d: %d.",
6577 					       idx, rc);
6578 				return rc;
6579 			}
6580 		} else {
6581 			rc = set_wep_key(local, idx, key.key, key.len, perm, 1);
6582 			if (rc < 0) {
6583 				airo_print_err(local->dev->name,
6584 					       "failed to set WEP key at index %d: %d.",
6585 					       idx, rc);
6586 				return rc;
6587 			}
6588 		}
6589 	}
6590 
6591 	/* Read the flags */
6592 	if (encoding->flags & IW_ENCODE_DISABLED)
6593 		set_auth_type(local, AUTH_OPEN);	/* disable encryption */
6594 	if (encoding->flags & IW_ENCODE_RESTRICTED)
6595 		set_auth_type(local, AUTH_SHAREDKEY);	/* Only Both */
6596 	if (encoding->flags & IW_ENCODE_OPEN)
6597 		set_auth_type(local, AUTH_ENCRYPT);
6598 	/* Commit the changes to flags if needed */
6599 	if (local->config.authType != currentAuthType)
6600 		set_bit (FLAG_COMMIT, &local->flags);
6601 
6602 	return -EINPROGRESS;
6603 }
6604 
6605 
6606 /*------------------------------------------------------------------*/
6607 /*
6608  * Wireless Handler : get extended Encryption parameters
6609  */
airo_get_encodeext(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6610 static int airo_get_encodeext(struct net_device *dev,
6611 			    struct iw_request_info *info,
6612 			    union iwreq_data *wrqu,
6613 			    char *extra)
6614 {
6615 	struct airo_info *local = dev->ml_priv;
6616 	struct iw_point *encoding = &wrqu->encoding;
6617 	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6618 	int idx, max_key_len, wep_key_len;
6619 	u8 buf[16];
6620 
6621 	if (!local->wep_capable)
6622 		return -EOPNOTSUPP;
6623 
6624 	readConfigRid(local, 1);
6625 
6626 	max_key_len = encoding->length - sizeof(*ext);
6627 	if (max_key_len < 0)
6628 		return -EINVAL;
6629 
6630 	idx = encoding->flags & IW_ENCODE_INDEX;
6631 	if (idx) {
6632 		if (!valid_index(local, idx - 1))
6633 			return -EINVAL;
6634 		idx--;
6635 	} else {
6636 		idx = get_wep_tx_idx(local);
6637 		if (idx < 0)
6638 			idx = 0;
6639 	}
6640 
6641 	encoding->flags = idx + 1;
6642 	memset(ext, 0, sizeof(*ext));
6643 
6644 	/* Check encryption mode */
6645 	switch(local->config.authType) {
6646 		case AUTH_ENCRYPT:
6647 			encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED;
6648 			break;
6649 		case AUTH_SHAREDKEY:
6650 			encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED;
6651 			break;
6652 		default:
6653 		case AUTH_OPEN:
6654 			encoding->flags = IW_ENCODE_ALG_NONE | IW_ENCODE_DISABLED;
6655 			break;
6656 	}
6657 	/* We can't return the key, so set the proper flag and return zero */
6658 	encoding->flags |= IW_ENCODE_NOKEY;
6659 	memset(extra, 0, 16);
6660 
6661 	/* Copy the key to the user buffer */
6662 	wep_key_len = get_wep_key(local, idx, &buf[0], sizeof(buf));
6663 	if (wep_key_len < 0) {
6664 		ext->key_len = 0;
6665 	} else {
6666 		ext->key_len = wep_key_len;
6667 		memcpy(extra, buf, ext->key_len);
6668 	}
6669 
6670 	return 0;
6671 }
6672 
6673 
6674 /*------------------------------------------------------------------*/
6675 /*
6676  * Wireless Handler : set extended authentication parameters
6677  */
airo_set_auth(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6678 static int airo_set_auth(struct net_device *dev,
6679 			       struct iw_request_info *info,
6680 			       union iwreq_data *wrqu, char *extra)
6681 {
6682 	struct airo_info *local = dev->ml_priv;
6683 	struct iw_param *param = &wrqu->param;
6684 	__le16 currentAuthType = local->config.authType;
6685 
6686 	switch (param->flags & IW_AUTH_INDEX) {
6687 	case IW_AUTH_WPA_VERSION:
6688 	case IW_AUTH_CIPHER_PAIRWISE:
6689 	case IW_AUTH_CIPHER_GROUP:
6690 	case IW_AUTH_KEY_MGMT:
6691 	case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6692 	case IW_AUTH_PRIVACY_INVOKED:
6693 		/*
6694 		 * airo does not use these parameters
6695 		 */
6696 		break;
6697 
6698 	case IW_AUTH_DROP_UNENCRYPTED:
6699 		if (param->value) {
6700 			/* Only change auth type if unencrypted */
6701 			if (currentAuthType == AUTH_OPEN)
6702 				set_auth_type(local, AUTH_ENCRYPT);
6703 		} else {
6704 			set_auth_type(local, AUTH_OPEN);
6705 		}
6706 
6707 		/* Commit the changes to flags if needed */
6708 		if (local->config.authType != currentAuthType)
6709 			set_bit (FLAG_COMMIT, &local->flags);
6710 		break;
6711 
6712 	case IW_AUTH_80211_AUTH_ALG: {
6713 			if (param->value & IW_AUTH_ALG_SHARED_KEY) {
6714 				set_auth_type(local, AUTH_SHAREDKEY);
6715 			} else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
6716 				/* We don't know here if WEP open system or
6717 				 * unencrypted mode was requested - so use the
6718 				 * last mode (of these two) used last time
6719 				 */
6720 				set_auth_type(local, local->last_auth);
6721 			} else
6722 				return -EINVAL;
6723 
6724 			/* Commit the changes to flags if needed */
6725 			if (local->config.authType != currentAuthType)
6726 				set_bit (FLAG_COMMIT, &local->flags);
6727 			break;
6728 		}
6729 
6730 	case IW_AUTH_WPA_ENABLED:
6731 		/* Silently accept disable of WPA */
6732 		if (param->value > 0)
6733 			return -EOPNOTSUPP;
6734 		break;
6735 
6736 	default:
6737 		return -EOPNOTSUPP;
6738 	}
6739 	return -EINPROGRESS;
6740 }
6741 
6742 
6743 /*------------------------------------------------------------------*/
6744 /*
6745  * Wireless Handler : get extended authentication parameters
6746  */
airo_get_auth(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)6747 static int airo_get_auth(struct net_device *dev,
6748 			       struct iw_request_info *info,
6749 			       union iwreq_data *wrqu, char *extra)
6750 {
6751 	struct airo_info *local = dev->ml_priv;
6752 	struct iw_param *param = &wrqu->param;
6753 	__le16 currentAuthType = local->config.authType;
6754 
6755 	switch (param->flags & IW_AUTH_INDEX) {
6756 	case IW_AUTH_DROP_UNENCRYPTED:
6757 		switch (currentAuthType) {
6758 		case AUTH_SHAREDKEY:
6759 		case AUTH_ENCRYPT:
6760 			param->value = 1;
6761 			break;
6762 		default:
6763 			param->value = 0;
6764 			break;
6765 		}
6766 		break;
6767 
6768 	case IW_AUTH_80211_AUTH_ALG:
6769 		switch (currentAuthType) {
6770 		case AUTH_SHAREDKEY:
6771 			param->value = IW_AUTH_ALG_SHARED_KEY;
6772 			break;
6773 		case AUTH_ENCRYPT:
6774 		default:
6775 			param->value = IW_AUTH_ALG_OPEN_SYSTEM;
6776 			break;
6777 		}
6778 		break;
6779 
6780 	case IW_AUTH_WPA_ENABLED:
6781 		param->value = 0;
6782 		break;
6783 
6784 	default:
6785 		return -EOPNOTSUPP;
6786 	}
6787 	return 0;
6788 }
6789 
6790 
6791 /*------------------------------------------------------------------*/
6792 /*
6793  * Wireless Handler : set Tx-Power
6794  */
airo_set_txpow(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6795 static int airo_set_txpow(struct net_device *dev,
6796 			  struct iw_request_info *info,
6797 			  struct iw_param *vwrq,
6798 			  char *extra)
6799 {
6800 	struct airo_info *local = dev->ml_priv;
6801 	CapabilityRid cap_rid;		/* Card capability info */
6802 	int i;
6803 	int rc = -EINVAL;
6804 	__le16 v = cpu_to_le16(vwrq->value);
6805 
6806 	readCapabilityRid(local, &cap_rid, 1);
6807 
6808 	if (vwrq->disabled) {
6809 		set_bit (FLAG_RADIO_OFF, &local->flags);
6810 		set_bit (FLAG_COMMIT, &local->flags);
6811 		return -EINPROGRESS;		/* Call commit handler */
6812 	}
6813 	if (vwrq->flags != IW_TXPOW_MWATT) {
6814 		return -EINVAL;
6815 	}
6816 	clear_bit (FLAG_RADIO_OFF, &local->flags);
6817 	for (i = 0; i < 8 && cap_rid.txPowerLevels[i]; i++)
6818 		if (v == cap_rid.txPowerLevels[i]) {
6819 			readConfigRid(local, 1);
6820 			local->config.txPower = v;
6821 			set_bit (FLAG_COMMIT, &local->flags);
6822 			rc = -EINPROGRESS;	/* Call commit handler */
6823 			break;
6824 		}
6825 	return rc;
6826 }
6827 
6828 /*------------------------------------------------------------------*/
6829 /*
6830  * Wireless Handler : get Tx-Power
6831  */
airo_get_txpow(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6832 static int airo_get_txpow(struct net_device *dev,
6833 			  struct iw_request_info *info,
6834 			  struct iw_param *vwrq,
6835 			  char *extra)
6836 {
6837 	struct airo_info *local = dev->ml_priv;
6838 
6839 	readConfigRid(local, 1);
6840 	vwrq->value = le16_to_cpu(local->config.txPower);
6841 	vwrq->fixed = 1;	/* No power control */
6842 	vwrq->disabled = test_bit(FLAG_RADIO_OFF, &local->flags);
6843 	vwrq->flags = IW_TXPOW_MWATT;
6844 
6845 	return 0;
6846 }
6847 
6848 /*------------------------------------------------------------------*/
6849 /*
6850  * Wireless Handler : set Retry limits
6851  */
airo_set_retry(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6852 static int airo_set_retry(struct net_device *dev,
6853 			  struct iw_request_info *info,
6854 			  struct iw_param *vwrq,
6855 			  char *extra)
6856 {
6857 	struct airo_info *local = dev->ml_priv;
6858 	int rc = -EINVAL;
6859 
6860 	if (vwrq->disabled) {
6861 		return -EINVAL;
6862 	}
6863 	readConfigRid(local, 1);
6864 	if (vwrq->flags & IW_RETRY_LIMIT) {
6865 		__le16 v = cpu_to_le16(vwrq->value);
6866 		if (vwrq->flags & IW_RETRY_LONG)
6867 			local->config.longRetryLimit = v;
6868 		else if (vwrq->flags & IW_RETRY_SHORT)
6869 			local->config.shortRetryLimit = v;
6870 		else {
6871 			/* No modifier : set both */
6872 			local->config.longRetryLimit = v;
6873 			local->config.shortRetryLimit = v;
6874 		}
6875 		set_bit (FLAG_COMMIT, &local->flags);
6876 		rc = -EINPROGRESS;		/* Call commit handler */
6877 	}
6878 	if (vwrq->flags & IW_RETRY_LIFETIME) {
6879 		local->config.txLifetime = cpu_to_le16(vwrq->value / 1024);
6880 		set_bit (FLAG_COMMIT, &local->flags);
6881 		rc = -EINPROGRESS;		/* Call commit handler */
6882 	}
6883 	return rc;
6884 }
6885 
6886 /*------------------------------------------------------------------*/
6887 /*
6888  * Wireless Handler : get Retry limits
6889  */
airo_get_retry(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)6890 static int airo_get_retry(struct net_device *dev,
6891 			  struct iw_request_info *info,
6892 			  struct iw_param *vwrq,
6893 			  char *extra)
6894 {
6895 	struct airo_info *local = dev->ml_priv;
6896 
6897 	vwrq->disabled = 0;      /* Can't be disabled */
6898 
6899 	readConfigRid(local, 1);
6900 	/* Note : by default, display the min retry number */
6901 	if ((vwrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
6902 		vwrq->flags = IW_RETRY_LIFETIME;
6903 		vwrq->value = le16_to_cpu(local->config.txLifetime) * 1024;
6904 	} else if ((vwrq->flags & IW_RETRY_LONG)) {
6905 		vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
6906 		vwrq->value = le16_to_cpu(local->config.longRetryLimit);
6907 	} else {
6908 		vwrq->flags = IW_RETRY_LIMIT;
6909 		vwrq->value = le16_to_cpu(local->config.shortRetryLimit);
6910 		if (local->config.shortRetryLimit != local->config.longRetryLimit)
6911 			vwrq->flags |= IW_RETRY_SHORT;
6912 	}
6913 
6914 	return 0;
6915 }
6916 
6917 /*------------------------------------------------------------------*/
6918 /*
6919  * Wireless Handler : get range info
6920  */
airo_get_range(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)6921 static int airo_get_range(struct net_device *dev,
6922 			  struct iw_request_info *info,
6923 			  struct iw_point *dwrq,
6924 			  char *extra)
6925 {
6926 	struct airo_info *local = dev->ml_priv;
6927 	struct iw_range *range = (struct iw_range *) extra;
6928 	CapabilityRid cap_rid;		/* Card capability info */
6929 	int		i;
6930 	int		k;
6931 
6932 	readCapabilityRid(local, &cap_rid, 1);
6933 
6934 	dwrq->length = sizeof(struct iw_range);
6935 	memset(range, 0, sizeof(*range));
6936 	range->min_nwid = 0x0000;
6937 	range->max_nwid = 0x0000;
6938 	range->num_channels = 14;
6939 	/* Should be based on cap_rid.country to give only
6940 	 * what the current card support */
6941 	k = 0;
6942 	for (i = 0; i < 14; i++) {
6943 		range->freq[k].i = i + 1; /* List index */
6944 		range->freq[k].m = 100000 *
6945 		     ieee80211_channel_to_frequency(i + 1, NL80211_BAND_2GHZ);
6946 		range->freq[k++].e = 1;	/* Values in MHz -> * 10^5 * 10 */
6947 	}
6948 	range->num_frequency = k;
6949 
6950 	range->sensitivity = 65535;
6951 
6952 	/* Hum... Should put the right values there */
6953 	if (local->rssi)
6954 		range->max_qual.qual = 100;	/* % */
6955 	else
6956 		range->max_qual.qual = airo_get_max_quality(&cap_rid);
6957 	range->max_qual.level = 0x100 - 120;	/* -120 dBm */
6958 	range->max_qual.noise = 0x100 - 120;	/* -120 dBm */
6959 
6960 	/* Experimental measurements - boundary 11/5.5 Mb/s */
6961 	/* Note : with or without the (local->rssi), results
6962 	 * are somewhat different. - Jean II */
6963 	if (local->rssi) {
6964 		range->avg_qual.qual = 50;		/* % */
6965 		range->avg_qual.level = 0x100 - 70;	/* -70 dBm */
6966 	} else {
6967 		range->avg_qual.qual = airo_get_avg_quality(&cap_rid);
6968 		range->avg_qual.level = 0x100 - 80;	/* -80 dBm */
6969 	}
6970 	range->avg_qual.noise = 0x100 - 85;		/* -85 dBm */
6971 
6972 	for (i = 0 ; i < 8 ; i++) {
6973 		range->bitrate[i] = cap_rid.supportedRates[i] * 500000;
6974 		if (range->bitrate[i] == 0)
6975 			break;
6976 	}
6977 	range->num_bitrates = i;
6978 
6979 	/* Set an indication of the max TCP throughput
6980 	 * in bit/s that we can expect using this interface.
6981 	 * May be use for QoS stuff... Jean II */
6982 	if (i > 2)
6983 		range->throughput = 5000 * 1000;
6984 	else
6985 		range->throughput = 1500 * 1000;
6986 
6987 	range->min_rts = 0;
6988 	range->max_rts = AIRO_DEF_MTU;
6989 	range->min_frag = 256;
6990 	range->max_frag = AIRO_DEF_MTU;
6991 
6992 	if (cap_rid.softCap & cpu_to_le16(2)) {
6993 		// WEP: RC4 40 bits
6994 		range->encoding_size[0] = 5;
6995 		// RC4 ~128 bits
6996 		if (cap_rid.softCap & cpu_to_le16(0x100)) {
6997 			range->encoding_size[1] = 13;
6998 			range->num_encoding_sizes = 2;
6999 		} else
7000 			range->num_encoding_sizes = 1;
7001 		range->max_encoding_tokens =
7002 			cap_rid.softCap & cpu_to_le16(0x80) ? 4 : 1;
7003 	} else {
7004 		range->num_encoding_sizes = 0;
7005 		range->max_encoding_tokens = 0;
7006 	}
7007 	range->min_pmp = 0;
7008 	range->max_pmp = 5000000;	/* 5 secs */
7009 	range->min_pmt = 0;
7010 	range->max_pmt = 65535 * 1024;	/* ??? */
7011 	range->pmp_flags = IW_POWER_PERIOD;
7012 	range->pmt_flags = IW_POWER_TIMEOUT;
7013 	range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R;
7014 
7015 	/* Transmit Power - values are in mW */
7016 	for (i = 0 ; i < 8 ; i++) {
7017 		range->txpower[i] = le16_to_cpu(cap_rid.txPowerLevels[i]);
7018 		if (range->txpower[i] == 0)
7019 			break;
7020 	}
7021 	range->num_txpower = i;
7022 	range->txpower_capa = IW_TXPOW_MWATT;
7023 	range->we_version_source = 19;
7024 	range->we_version_compiled = WIRELESS_EXT;
7025 	range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
7026 	range->retry_flags = IW_RETRY_LIMIT;
7027 	range->r_time_flags = IW_RETRY_LIFETIME;
7028 	range->min_retry = 1;
7029 	range->max_retry = 65535;
7030 	range->min_r_time = 1024;
7031 	range->max_r_time = 65535 * 1024;
7032 
7033 	/* Event capability (kernel + driver) */
7034 	range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
7035 				IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) |
7036 				IW_EVENT_CAPA_MASK(SIOCGIWAP) |
7037 				IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
7038 	range->event_capa[1] = IW_EVENT_CAPA_K_1;
7039 	range->event_capa[4] = IW_EVENT_CAPA_MASK(IWEVTXDROP);
7040 	return 0;
7041 }
7042 
7043 /*------------------------------------------------------------------*/
7044 /*
7045  * Wireless Handler : set Power Management
7046  */
airo_set_power(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7047 static int airo_set_power(struct net_device *dev,
7048 			  struct iw_request_info *info,
7049 			  struct iw_param *vwrq,
7050 			  char *extra)
7051 {
7052 	struct airo_info *local = dev->ml_priv;
7053 
7054 	readConfigRid(local, 1);
7055 	if (vwrq->disabled) {
7056 		if (sniffing_mode(local))
7057 			return -EINVAL;
7058 		local->config.powerSaveMode = POWERSAVE_CAM;
7059 		local->config.rmode &= ~RXMODE_MASK;
7060 		local->config.rmode |= RXMODE_BC_MC_ADDR;
7061 		set_bit (FLAG_COMMIT, &local->flags);
7062 		return -EINPROGRESS;		/* Call commit handler */
7063 	}
7064 	if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
7065 		local->config.fastListenDelay = cpu_to_le16((vwrq->value + 500) / 1024);
7066 		local->config.powerSaveMode = POWERSAVE_PSPCAM;
7067 		set_bit (FLAG_COMMIT, &local->flags);
7068 	} else if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_PERIOD) {
7069 		local->config.fastListenInterval =
7070 		local->config.listenInterval =
7071 			cpu_to_le16((vwrq->value + 500) / 1024);
7072 		local->config.powerSaveMode = POWERSAVE_PSPCAM;
7073 		set_bit (FLAG_COMMIT, &local->flags);
7074 	}
7075 	switch (vwrq->flags & IW_POWER_MODE) {
7076 		case IW_POWER_UNICAST_R:
7077 			if (sniffing_mode(local))
7078 				return -EINVAL;
7079 			local->config.rmode &= ~RXMODE_MASK;
7080 			local->config.rmode |= RXMODE_ADDR;
7081 			set_bit (FLAG_COMMIT, &local->flags);
7082 			break;
7083 		case IW_POWER_ALL_R:
7084 			if (sniffing_mode(local))
7085 				return -EINVAL;
7086 			local->config.rmode &= ~RXMODE_MASK;
7087 			local->config.rmode |= RXMODE_BC_MC_ADDR;
7088 			set_bit (FLAG_COMMIT, &local->flags);
7089 			break;
7090 		case IW_POWER_ON:
7091 			/* This is broken, fixme ;-) */
7092 			break;
7093 		default:
7094 			return -EINVAL;
7095 	}
7096 	// Note : we may want to factor local->need_commit here
7097 	// Note2 : may also want to factor RXMODE_RFMON test
7098 	return -EINPROGRESS;		/* Call commit handler */
7099 }
7100 
7101 /*------------------------------------------------------------------*/
7102 /*
7103  * Wireless Handler : get Power Management
7104  */
airo_get_power(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7105 static int airo_get_power(struct net_device *dev,
7106 			  struct iw_request_info *info,
7107 			  struct iw_param *vwrq,
7108 			  char *extra)
7109 {
7110 	struct airo_info *local = dev->ml_priv;
7111 	__le16 mode;
7112 
7113 	readConfigRid(local, 1);
7114 	mode = local->config.powerSaveMode;
7115 	if ((vwrq->disabled = (mode == POWERSAVE_CAM)))
7116 		return 0;
7117 	if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
7118 		vwrq->value = le16_to_cpu(local->config.fastListenDelay) * 1024;
7119 		vwrq->flags = IW_POWER_TIMEOUT;
7120 	} else {
7121 		vwrq->value = le16_to_cpu(local->config.fastListenInterval) * 1024;
7122 		vwrq->flags = IW_POWER_PERIOD;
7123 	}
7124 	if ((local->config.rmode & RXMODE_MASK) == RXMODE_ADDR)
7125 		vwrq->flags |= IW_POWER_UNICAST_R;
7126 	else
7127 		vwrq->flags |= IW_POWER_ALL_R;
7128 
7129 	return 0;
7130 }
7131 
7132 /*------------------------------------------------------------------*/
7133 /*
7134  * Wireless Handler : set Sensitivity
7135  */
airo_set_sens(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7136 static int airo_set_sens(struct net_device *dev,
7137 			 struct iw_request_info *info,
7138 			 struct iw_param *vwrq,
7139 			 char *extra)
7140 {
7141 	struct airo_info *local = dev->ml_priv;
7142 
7143 	readConfigRid(local, 1);
7144 	local->config.rssiThreshold =
7145 		cpu_to_le16(vwrq->disabled ? RSSI_DEFAULT : vwrq->value);
7146 	set_bit (FLAG_COMMIT, &local->flags);
7147 
7148 	return -EINPROGRESS;		/* Call commit handler */
7149 }
7150 
7151 /*------------------------------------------------------------------*/
7152 /*
7153  * Wireless Handler : get Sensitivity
7154  */
airo_get_sens(struct net_device * dev,struct iw_request_info * info,struct iw_param * vwrq,char * extra)7155 static int airo_get_sens(struct net_device *dev,
7156 			 struct iw_request_info *info,
7157 			 struct iw_param *vwrq,
7158 			 char *extra)
7159 {
7160 	struct airo_info *local = dev->ml_priv;
7161 
7162 	readConfigRid(local, 1);
7163 	vwrq->value = le16_to_cpu(local->config.rssiThreshold);
7164 	vwrq->disabled = (vwrq->value == 0);
7165 	vwrq->fixed = 1;
7166 
7167 	return 0;
7168 }
7169 
7170 /*------------------------------------------------------------------*/
7171 /*
7172  * Wireless Handler : get AP List
7173  * Note : this is deprecated in favor of IWSCAN
7174  */
airo_get_aplist(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)7175 static int airo_get_aplist(struct net_device *dev,
7176 			   struct iw_request_info *info,
7177 			   struct iw_point *dwrq,
7178 			   char *extra)
7179 {
7180 	struct airo_info *local = dev->ml_priv;
7181 	struct sockaddr *address = (struct sockaddr *) extra;
7182 	struct iw_quality *qual;
7183 	BSSListRid BSSList;
7184 	int i;
7185 	int loseSync = capable(CAP_NET_ADMIN) ? 1: -1;
7186 
7187 	qual = kmalloc_array(IW_MAX_AP, sizeof(*qual), GFP_KERNEL);
7188 	if (!qual)
7189 		return -ENOMEM;
7190 
7191 	for (i = 0; i < IW_MAX_AP; i++) {
7192 		u16 dBm;
7193 		if (readBSSListRid(local, loseSync, &BSSList))
7194 			break;
7195 		loseSync = 0;
7196 		memcpy(address[i].sa_data, BSSList.bssid, ETH_ALEN);
7197 		address[i].sa_family = ARPHRD_ETHER;
7198 		dBm = le16_to_cpu(BSSList.dBm);
7199 		if (local->rssi) {
7200 			qual[i].level = 0x100 - dBm;
7201 			qual[i].qual = airo_dbm_to_pct(local->rssi, dBm);
7202 			qual[i].updated = IW_QUAL_QUAL_UPDATED
7203 					| IW_QUAL_LEVEL_UPDATED
7204 					| IW_QUAL_DBM;
7205 		} else {
7206 			qual[i].level = (dBm + 321) / 2;
7207 			qual[i].qual = 0;
7208 			qual[i].updated = IW_QUAL_QUAL_INVALID
7209 					| IW_QUAL_LEVEL_UPDATED
7210 					| IW_QUAL_DBM;
7211 		}
7212 		qual[i].noise = local->wstats.qual.noise;
7213 		if (BSSList.index == cpu_to_le16(0xffff))
7214 			break;
7215 	}
7216 	if (!i) {
7217 		StatusRid status_rid;		/* Card status info */
7218 		readStatusRid(local, &status_rid, 1);
7219 		for (i = 0;
7220 		     i < min(IW_MAX_AP, 4) &&
7221 			     (status_rid.bssid[i][0]
7222 			      & status_rid.bssid[i][1]
7223 			      & status_rid.bssid[i][2]
7224 			      & status_rid.bssid[i][3]
7225 			      & status_rid.bssid[i][4]
7226 			      & status_rid.bssid[i][5])!=0xff &&
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]);
7233 		     i++) {
7234 			memcpy(address[i].sa_data,
7235 			       status_rid.bssid[i], ETH_ALEN);
7236 			address[i].sa_family = ARPHRD_ETHER;
7237 		}
7238 	} else {
7239 		dwrq->flags = 1; /* Should be define'd */
7240 		memcpy(extra + sizeof(struct sockaddr) * i, qual,
7241 		       sizeof(struct iw_quality) * i);
7242 	}
7243 	dwrq->length = i;
7244 
7245 	kfree(qual);
7246 	return 0;
7247 }
7248 
7249 /*------------------------------------------------------------------*/
7250 /*
7251  * Wireless Handler : Initiate Scan
7252  */
airo_set_scan(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)7253 static int airo_set_scan(struct net_device *dev,
7254 			 struct iw_request_info *info,
7255 			 struct iw_point *dwrq,
7256 			 char *extra)
7257 {
7258 	struct airo_info *ai = dev->ml_priv;
7259 	Cmd cmd;
7260 	Resp rsp;
7261 	int wake = 0;
7262 	APListRid APList_rid_empty;
7263 
7264 	/* Note : you may have realised that, as this is a SET operation,
7265 	 * this is privileged and therefore a normal user can't
7266 	 * perform scanning.
7267 	 * This is not an error, while the device perform scanning,
7268 	 * traffic doesn't flow, so it's a perfect DoS...
7269 	 * Jean II */
7270 	if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN;
7271 
7272 	if (down_interruptible(&ai->sem))
7273 		return -ERESTARTSYS;
7274 
7275 	/* If there's already a scan in progress, don't
7276 	 * trigger another one. */
7277 	if (ai->scan_timeout > 0)
7278 		goto out;
7279 
7280 	/* Clear APList as it affects scan results */
7281 	memset(&APList_rid_empty, 0, sizeof(APList_rid_empty));
7282 	APList_rid_empty.len = cpu_to_le16(sizeof(APList_rid_empty));
7283 	disable_MAC(ai, 2);
7284 	writeAPListRid(ai, &APList_rid_empty, 0);
7285 	enable_MAC(ai, 0);
7286 
7287 	/* Initiate a scan command */
7288 	ai->scan_timeout = RUN_AT(3*HZ);
7289 	memset(&cmd, 0, sizeof(cmd));
7290 	cmd.cmd = CMD_LISTBSS;
7291 	issuecommand(ai, &cmd, &rsp, true);
7292 	wake = 1;
7293 
7294 out:
7295 	up(&ai->sem);
7296 	if (wake)
7297 		wake_up_interruptible(&ai->thr_wait);
7298 	return 0;
7299 }
7300 
7301 /*------------------------------------------------------------------*/
7302 /*
7303  * Translate scan data returned from the card to a card independent
7304  * format that the Wireless Tools will understand - Jean II
7305  */
airo_translate_scan(struct net_device * dev,struct iw_request_info * info,char * current_ev,char * end_buf,BSSListRid * bss)7306 static inline char *airo_translate_scan(struct net_device *dev,
7307 					struct iw_request_info *info,
7308 					char *current_ev,
7309 					char *end_buf,
7310 					BSSListRid *bss)
7311 {
7312 	struct airo_info *ai = dev->ml_priv;
7313 	struct iw_event		iwe;		/* Temporary buffer */
7314 	__le16			capabilities;
7315 	char *			current_val;	/* For rates */
7316 	int			i;
7317 	char *		buf;
7318 	u16 dBm;
7319 
7320 	/* First entry *MUST* be the AP MAC address */
7321 	iwe.cmd = SIOCGIWAP;
7322 	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
7323 	memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN);
7324 	current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7325 					  &iwe, IW_EV_ADDR_LEN);
7326 
7327 	/* Other entries will be displayed in the order we give them */
7328 
7329 	/* Add the ESSID */
7330 	iwe.u.data.length = bss->ssidLen;
7331 	if (iwe.u.data.length > 32)
7332 		iwe.u.data.length = 32;
7333 	iwe.cmd = SIOCGIWESSID;
7334 	iwe.u.data.flags = 1;
7335 	current_ev = iwe_stream_add_point(info, current_ev, end_buf,
7336 					  &iwe, bss->ssid);
7337 
7338 	/* Add mode */
7339 	iwe.cmd = SIOCGIWMODE;
7340 	capabilities = bss->cap;
7341 	if (capabilities & (CAP_ESS | CAP_IBSS)) {
7342 		if (capabilities & CAP_ESS)
7343 			iwe.u.mode = IW_MODE_MASTER;
7344 		else
7345 			iwe.u.mode = IW_MODE_ADHOC;
7346 		current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7347 						  &iwe, IW_EV_UINT_LEN);
7348 	}
7349 
7350 	/* Add frequency */
7351 	iwe.cmd = SIOCGIWFREQ;
7352 	iwe.u.freq.m = le16_to_cpu(bss->dsChannel);
7353 	iwe.u.freq.m = 100000 *
7354 	      ieee80211_channel_to_frequency(iwe.u.freq.m, NL80211_BAND_2GHZ);
7355 	iwe.u.freq.e = 1;
7356 	current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7357 					  &iwe, IW_EV_FREQ_LEN);
7358 
7359 	dBm = le16_to_cpu(bss->dBm);
7360 
7361 	/* Add quality statistics */
7362 	iwe.cmd = IWEVQUAL;
7363 	if (ai->rssi) {
7364 		iwe.u.qual.level = 0x100 - dBm;
7365 		iwe.u.qual.qual = airo_dbm_to_pct(ai->rssi, dBm);
7366 		iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED
7367 				| IW_QUAL_LEVEL_UPDATED
7368 				| IW_QUAL_DBM;
7369 	} else {
7370 		iwe.u.qual.level = (dBm + 321) / 2;
7371 		iwe.u.qual.qual = 0;
7372 		iwe.u.qual.updated = IW_QUAL_QUAL_INVALID
7373 				| IW_QUAL_LEVEL_UPDATED
7374 				| IW_QUAL_DBM;
7375 	}
7376 	iwe.u.qual.noise = ai->wstats.qual.noise;
7377 	current_ev = iwe_stream_add_event(info, current_ev, end_buf,
7378 					  &iwe, IW_EV_QUAL_LEN);
7379 
7380 	/* Add encryption capability */
7381 	iwe.cmd = SIOCGIWENCODE;
7382 	if (capabilities & CAP_PRIVACY)
7383 		iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
7384 	else
7385 		iwe.u.data.flags = IW_ENCODE_DISABLED;
7386 	iwe.u.data.length = 0;
7387 	current_ev = iwe_stream_add_point(info, current_ev, end_buf,
7388 					  &iwe, bss->ssid);
7389 
7390 	/* Rate : stuffing multiple values in a single event require a bit
7391 	 * more of magic - Jean II */
7392 	current_val = current_ev + iwe_stream_lcp_len(info);
7393 
7394 	iwe.cmd = SIOCGIWRATE;
7395 	/* Those two flags are ignored... */
7396 	iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
7397 	/* Max 8 values */
7398 	for (i = 0 ; i < 8 ; i++) {
7399 		/* NULL terminated */
7400 		if (bss->rates[i] == 0)
7401 			break;
7402 		/* Bit rate given in 500 kb/s units (+ 0x80) */
7403 		iwe.u.bitrate.value = ((bss->rates[i] & 0x7f) * 500000);
7404 		/* Add new value to event */
7405 		current_val = iwe_stream_add_value(info, current_ev,
7406 						   current_val, end_buf,
7407 						   &iwe, IW_EV_PARAM_LEN);
7408 	}
7409 	/* Check if we added any event */
7410 	if ((current_val - current_ev) > iwe_stream_lcp_len(info))
7411 		current_ev = current_val;
7412 
7413 	/* Beacon interval */
7414 	buf = kmalloc(30, GFP_KERNEL);
7415 	if (buf) {
7416 		iwe.cmd = IWEVCUSTOM;
7417 		sprintf(buf, "bcn_int=%d", bss->beaconInterval);
7418 		iwe.u.data.length = strlen(buf);
7419 		current_ev = iwe_stream_add_point(info, current_ev, end_buf,
7420 						  &iwe, buf);
7421 		kfree(buf);
7422 	}
7423 
7424 	/* Put WPA/RSN Information Elements into the event stream */
7425 	if (test_bit(FLAG_WPA_CAPABLE, &ai->flags)) {
7426 		unsigned int num_null_ies = 0;
7427 		u16 length = sizeof (bss->extra.iep);
7428 		u8 *ie = (void *)&bss->extra.iep;
7429 
7430 		while ((length >= 2) && (num_null_ies < 2)) {
7431 			if (2 + ie[1] > length) {
7432 				/* Invalid element, don't continue parsing IE */
7433 				break;
7434 			}
7435 
7436 			switch (ie[0]) {
7437 			case WLAN_EID_SSID:
7438 				/* Two zero-length SSID elements
7439 				 * mean we're done parsing elements */
7440 				if (!ie[1])
7441 					num_null_ies++;
7442 				break;
7443 
7444 			case WLAN_EID_VENDOR_SPECIFIC:
7445 				if (ie[1] >= 4 &&
7446 				    ie[2] == 0x00 &&
7447 				    ie[3] == 0x50 &&
7448 				    ie[4] == 0xf2 &&
7449 				    ie[5] == 0x01) {
7450 					iwe.cmd = IWEVGENIE;
7451 					/* 64 is an arbitrary cut-off */
7452 					iwe.u.data.length = min(ie[1] + 2,
7453 								64);
7454 					current_ev = iwe_stream_add_point(
7455 							info, current_ev,
7456 							end_buf, &iwe, ie);
7457 				}
7458 				break;
7459 
7460 			case WLAN_EID_RSN:
7461 				iwe.cmd = IWEVGENIE;
7462 				/* 64 is an arbitrary cut-off */
7463 				iwe.u.data.length = min(ie[1] + 2, 64);
7464 				current_ev = iwe_stream_add_point(
7465 					info, current_ev, end_buf,
7466 					&iwe, ie);
7467 				break;
7468 
7469 			default:
7470 				break;
7471 			}
7472 
7473 			length -= 2 + ie[1];
7474 			ie += 2 + ie[1];
7475 		}
7476 	}
7477 	return current_ev;
7478 }
7479 
7480 /*------------------------------------------------------------------*/
7481 /*
7482  * Wireless Handler : Read Scan Results
7483  */
airo_get_scan(struct net_device * dev,struct iw_request_info * info,struct iw_point * dwrq,char * extra)7484 static int airo_get_scan(struct net_device *dev,
7485 			 struct iw_request_info *info,
7486 			 struct iw_point *dwrq,
7487 			 char *extra)
7488 {
7489 	struct airo_info *ai = dev->ml_priv;
7490 	BSSListElement *net;
7491 	int err = 0;
7492 	char *current_ev = extra;
7493 
7494 	/* If a scan is in-progress, return -EAGAIN */
7495 	if (ai->scan_timeout > 0)
7496 		return -EAGAIN;
7497 
7498 	if (down_interruptible(&ai->sem))
7499 		return -EAGAIN;
7500 
7501 	list_for_each_entry (net, &ai->network_list, list) {
7502 		/* Translate to WE format this entry */
7503 		current_ev = airo_translate_scan(dev, info, current_ev,
7504 						 extra + dwrq->length,
7505 						 &net->bss);
7506 
7507 		/* Check if there is space for one more entry */
7508 		if ((extra + dwrq->length - current_ev) <= IW_EV_ADDR_LEN) {
7509 			/* Ask user space to try again with a bigger buffer */
7510 			err = -E2BIG;
7511 			goto out;
7512 		}
7513 	}
7514 
7515 	/* Length of data */
7516 	dwrq->length = (current_ev - extra);
7517 	dwrq->flags = 0;	/* todo */
7518 
7519 out:
7520 	up(&ai->sem);
7521 	return err;
7522 }
7523 
7524 /*------------------------------------------------------------------*/
7525 /*
7526  * Commit handler : called after a bunch of SET operations
7527  */
airo_config_commit(struct net_device * dev,struct iw_request_info * info,void * zwrq,char * extra)7528 static int airo_config_commit(struct net_device *dev,
7529 			      struct iw_request_info *info,	/* NULL */
7530 			      void *zwrq,			/* NULL */
7531 			      char *extra)			/* NULL */
7532 {
7533 	struct airo_info *local = dev->ml_priv;
7534 
7535 	if (!test_bit (FLAG_COMMIT, &local->flags))
7536 		return 0;
7537 
7538 	/* Some of the "SET" function may have modified some of the
7539 	 * parameters. It's now time to commit them in the card */
7540 	disable_MAC(local, 1);
7541 	if (test_bit (FLAG_RESET, &local->flags)) {
7542 		SsidRid SSID_rid;
7543 
7544 		readSsidRid(local, &SSID_rid);
7545 		if (test_bit(FLAG_MPI,&local->flags))
7546 			setup_card(local, dev, 1);
7547 		else
7548 			reset_airo_card(dev);
7549 		disable_MAC(local, 1);
7550 		writeSsidRid(local, &SSID_rid, 1);
7551 		writeAPListRid(local, &local->APList, 1);
7552 	}
7553 	if (down_interruptible(&local->sem))
7554 		return -ERESTARTSYS;
7555 	writeConfigRid(local, 0);
7556 	enable_MAC(local, 0);
7557 	if (test_bit (FLAG_RESET, &local->flags))
7558 		airo_set_promisc(local, true);
7559 	else
7560 		up(&local->sem);
7561 
7562 	return 0;
7563 }
7564 
7565 /*------------------------------------------------------------------*/
7566 /*
7567  * Structures to export the Wireless Handlers
7568  */
7569 
7570 static const struct iw_priv_args airo_private_args[] = {
7571 /*{ cmd,         set_args,                            get_args, name } */
7572   { AIROIOCTL, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof (aironet_ioctl),
7573     IW_PRIV_TYPE_BYTE | 2047, "airoioctl" },
7574   { AIROIDIFC, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof (aironet_ioctl),
7575     IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "airoidifc" },
7576 };
7577 
7578 static const iw_handler		airo_handler[] =
7579 {
7580 	(iw_handler) airo_config_commit,	/* SIOCSIWCOMMIT */
7581 	(iw_handler) airo_get_name,		/* SIOCGIWNAME */
7582 	(iw_handler) NULL,			/* SIOCSIWNWID */
7583 	(iw_handler) NULL,			/* SIOCGIWNWID */
7584 	(iw_handler) airo_set_freq,		/* SIOCSIWFREQ */
7585 	(iw_handler) airo_get_freq,		/* SIOCGIWFREQ */
7586 	(iw_handler) airo_set_mode,		/* SIOCSIWMODE */
7587 	(iw_handler) airo_get_mode,		/* SIOCGIWMODE */
7588 	(iw_handler) airo_set_sens,		/* SIOCSIWSENS */
7589 	(iw_handler) airo_get_sens,		/* SIOCGIWSENS */
7590 	(iw_handler) NULL,			/* SIOCSIWRANGE */
7591 	(iw_handler) airo_get_range,		/* SIOCGIWRANGE */
7592 	(iw_handler) NULL,			/* SIOCSIWPRIV */
7593 	(iw_handler) NULL,			/* SIOCGIWPRIV */
7594 	(iw_handler) NULL,			/* SIOCSIWSTATS */
7595 	(iw_handler) NULL,			/* SIOCGIWSTATS */
7596 	iw_handler_set_spy,			/* SIOCSIWSPY */
7597 	iw_handler_get_spy,			/* SIOCGIWSPY */
7598 	iw_handler_set_thrspy,			/* SIOCSIWTHRSPY */
7599 	iw_handler_get_thrspy,			/* SIOCGIWTHRSPY */
7600 	(iw_handler) airo_set_wap,		/* SIOCSIWAP */
7601 	(iw_handler) airo_get_wap,		/* SIOCGIWAP */
7602 	(iw_handler) NULL,			/* -- hole -- */
7603 	(iw_handler) airo_get_aplist,		/* SIOCGIWAPLIST */
7604 	(iw_handler) airo_set_scan,		/* SIOCSIWSCAN */
7605 	(iw_handler) airo_get_scan,		/* SIOCGIWSCAN */
7606 	(iw_handler) airo_set_essid,		/* SIOCSIWESSID */
7607 	(iw_handler) airo_get_essid,		/* SIOCGIWESSID */
7608 	(iw_handler) airo_set_nick,		/* SIOCSIWNICKN */
7609 	(iw_handler) airo_get_nick,		/* SIOCGIWNICKN */
7610 	(iw_handler) NULL,			/* -- hole -- */
7611 	(iw_handler) NULL,			/* -- hole -- */
7612 	(iw_handler) airo_set_rate,		/* SIOCSIWRATE */
7613 	(iw_handler) airo_get_rate,		/* SIOCGIWRATE */
7614 	(iw_handler) airo_set_rts,		/* SIOCSIWRTS */
7615 	(iw_handler) airo_get_rts,		/* SIOCGIWRTS */
7616 	(iw_handler) airo_set_frag,		/* SIOCSIWFRAG */
7617 	(iw_handler) airo_get_frag,		/* SIOCGIWFRAG */
7618 	(iw_handler) airo_set_txpow,		/* SIOCSIWTXPOW */
7619 	(iw_handler) airo_get_txpow,		/* SIOCGIWTXPOW */
7620 	(iw_handler) airo_set_retry,		/* SIOCSIWRETRY */
7621 	(iw_handler) airo_get_retry,		/* SIOCGIWRETRY */
7622 	(iw_handler) airo_set_encode,		/* SIOCSIWENCODE */
7623 	(iw_handler) airo_get_encode,		/* SIOCGIWENCODE */
7624 	(iw_handler) airo_set_power,		/* SIOCSIWPOWER */
7625 	(iw_handler) airo_get_power,		/* SIOCGIWPOWER */
7626 	(iw_handler) NULL,			/* -- hole -- */
7627 	(iw_handler) NULL,			/* -- hole -- */
7628 	(iw_handler) NULL,			/* SIOCSIWGENIE */
7629 	(iw_handler) NULL,			/* SIOCGIWGENIE */
7630 	(iw_handler) airo_set_auth,		/* SIOCSIWAUTH */
7631 	(iw_handler) airo_get_auth,		/* SIOCGIWAUTH */
7632 	(iw_handler) airo_set_encodeext,	/* SIOCSIWENCODEEXT */
7633 	(iw_handler) airo_get_encodeext,	/* SIOCGIWENCODEEXT */
7634 	(iw_handler) NULL,			/* SIOCSIWPMKSA */
7635 };
7636 
7637 /* Note : don't describe AIROIDIFC and AIROOLDIDIFC in here.
7638  * We want to force the use of the ioctl code, because those can't be
7639  * won't work the iw_handler code (because they simultaneously read
7640  * and write data and iw_handler can't do that).
7641  * Note that it's perfectly legal to read/write on a single ioctl command,
7642  * you just can't use iwpriv and need to force it via the ioctl handler.
7643  * Jean II */
7644 static const iw_handler		airo_private_handler[] =
7645 {
7646 	NULL,				/* SIOCIWFIRSTPRIV */
7647 };
7648 
7649 static const struct iw_handler_def	airo_handler_def =
7650 {
7651 	.num_standard	= ARRAY_SIZE(airo_handler),
7652 	.num_private	= ARRAY_SIZE(airo_private_handler),
7653 	.num_private_args = ARRAY_SIZE(airo_private_args),
7654 	.standard	= airo_handler,
7655 	.private	= airo_private_handler,
7656 	.private_args	= airo_private_args,
7657 	.get_wireless_stats = airo_get_wireless_stats,
7658 };
7659 
7660 /*
7661  * This defines the configuration part of the Wireless Extensions
7662  * Note : irq and spinlock protection will occur in the subroutines
7663  *
7664  * TODO :
7665  *	o Check input value more carefully and fill correct values in range
7666  *	o Test and shakeout the bugs (if any)
7667  *
7668  * Jean II
7669  *
7670  * Javier Achirica did a great job of merging code from the unnamed CISCO
7671  * developer that added support for flashing the card.
7672  */
airo_siocdevprivate(struct net_device * dev,struct ifreq * rq,void __user * data,int cmd)7673 static int airo_siocdevprivate(struct net_device *dev, struct ifreq *rq,
7674 			       void __user *data, int cmd)
7675 {
7676 	int rc = 0;
7677 	struct airo_info *ai = dev->ml_priv;
7678 
7679 	if (ai->power.event)
7680 		return 0;
7681 
7682 	switch (cmd) {
7683 #ifdef CISCO_EXT
7684 	case AIROIDIFC:
7685 #ifdef AIROOLDIDIFC
7686 	case AIROOLDIDIFC:
7687 #endif
7688 	{
7689 		int val = AIROMAGIC;
7690 		aironet_ioctl com;
7691 		if (copy_from_user(&com, data, sizeof(com)))
7692 			rc = -EFAULT;
7693 		else if (copy_to_user(com.data, (char *)&val, sizeof(val)))
7694 			rc = -EFAULT;
7695 	}
7696 	break;
7697 
7698 	case AIROIOCTL:
7699 #ifdef AIROOLDIOCTL
7700 	case AIROOLDIOCTL:
7701 #endif
7702 		/* Get the command struct and hand it off for evaluation by
7703 		 * the proper subfunction
7704 		 */
7705 	{
7706 		aironet_ioctl com;
7707 		if (copy_from_user(&com, data, sizeof(com))) {
7708 			rc = -EFAULT;
7709 			break;
7710 		}
7711 
7712 		/* Separate R/W functions bracket legality here
7713 		 */
7714 		if (com.command == AIRORSWVERSION) {
7715 			if (copy_to_user(com.data, swversion, sizeof(swversion)))
7716 				rc = -EFAULT;
7717 			else
7718 				rc = 0;
7719 		}
7720 		else if (com.command <= AIRORRID)
7721 			rc = readrids(dev,&com);
7722 		else if (com.command >= AIROPCAP && com.command <= (AIROPLEAPUSR+2))
7723 			rc = writerids(dev,&com);
7724 		else if (com.command >= AIROFLSHRST && com.command <= AIRORESTART)
7725 			rc = flashcard(dev,&com);
7726 		else
7727 			rc = -EINVAL;      /* Bad command in ioctl */
7728 	}
7729 	break;
7730 #endif /* CISCO_EXT */
7731 
7732 	// All other calls are currently unsupported
7733 	default:
7734 		rc = -EOPNOTSUPP;
7735 	}
7736 	return rc;
7737 }
7738 
7739 /*
7740  * Get the Wireless stats out of the driver
7741  * Note : irq and spinlock protection will occur in the subroutines
7742  *
7743  * TODO :
7744  *	o Check if work in Ad-Hoc mode (otherwise, use SPY, as in wvlan_cs)
7745  *
7746  * Jean
7747  */
airo_read_wireless_stats(struct airo_info * local)7748 static void airo_read_wireless_stats(struct airo_info *local)
7749 {
7750 	StatusRid status_rid;
7751 	StatsRid stats_rid;
7752 	CapabilityRid cap_rid;
7753 	__le32 *vals = stats_rid.vals;
7754 
7755 	/* Get stats out of the card */
7756 	if (local->power.event)
7757 		return;
7758 
7759 	readCapabilityRid(local, &cap_rid, 0);
7760 	readStatusRid(local, &status_rid, 0);
7761 	readStatsRid(local, &stats_rid, RID_STATS, 0);
7762 
7763 	/* The status */
7764 	local->wstats.status = le16_to_cpu(status_rid.mode);
7765 
7766 	/* Signal quality and co */
7767 	if (local->rssi) {
7768 		local->wstats.qual.level =
7769 			airo_rssi_to_dbm(local->rssi,
7770 					 le16_to_cpu(status_rid.sigQuality));
7771 		/* normalizedSignalStrength appears to be a percentage */
7772 		local->wstats.qual.qual =
7773 			le16_to_cpu(status_rid.normalizedSignalStrength);
7774 	} else {
7775 		local->wstats.qual.level =
7776 			(le16_to_cpu(status_rid.normalizedSignalStrength) + 321) / 2;
7777 		local->wstats.qual.qual = airo_get_quality(&status_rid, &cap_rid);
7778 	}
7779 	if (le16_to_cpu(status_rid.len) >= 124) {
7780 		local->wstats.qual.noise = 0x100 - status_rid.noisedBm;
7781 		local->wstats.qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
7782 	} else {
7783 		local->wstats.qual.noise = 0;
7784 		local->wstats.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | IW_QUAL_NOISE_INVALID | IW_QUAL_DBM;
7785 	}
7786 
7787 	/* Packets discarded in the wireless adapter due to wireless
7788 	 * specific problems */
7789 	local->wstats.discard.nwid = le32_to_cpu(vals[56]) +
7790 				     le32_to_cpu(vals[57]) +
7791 				     le32_to_cpu(vals[58]); /* SSID Mismatch */
7792 	local->wstats.discard.code = le32_to_cpu(vals[6]);/* RxWepErr */
7793 	local->wstats.discard.fragment = le32_to_cpu(vals[30]);
7794 	local->wstats.discard.retries = le32_to_cpu(vals[10]);
7795 	local->wstats.discard.misc = le32_to_cpu(vals[1]) +
7796 				     le32_to_cpu(vals[32]);
7797 	local->wstats.miss.beacon = le32_to_cpu(vals[34]);
7798 }
7799 
airo_get_wireless_stats(struct net_device * dev)7800 static struct iw_statistics *airo_get_wireless_stats(struct net_device *dev)
7801 {
7802 	struct airo_info *local =  dev->ml_priv;
7803 
7804 	if (!down_interruptible(&local->sem)) {
7805 		airo_read_wireless_stats(local);
7806 		up(&local->sem);
7807 	}
7808 	return &local->wstats;
7809 }
7810 
7811 #ifdef CISCO_EXT
7812 /*
7813  * This just translates from driver IOCTL codes to the command codes to
7814  * feed to the radio's host interface. Things can be added/deleted
7815  * as needed.  This represents the READ side of control I/O to
7816  * the card
7817  */
readrids(struct net_device * dev,aironet_ioctl * comp)7818 static int readrids(struct net_device *dev, aironet_ioctl *comp)
7819 {
7820 	unsigned short ridcode;
7821 	unsigned char *iobuf;
7822 	int len;
7823 	struct airo_info *ai = dev->ml_priv;
7824 
7825 	if (test_bit(FLAG_FLASHING, &ai->flags))
7826 		return -EIO;
7827 
7828 	switch(comp->command)
7829 	{
7830 	case AIROGCAP:      ridcode = RID_CAPABILITIES; break;
7831 	case AIROGCFG:      ridcode = RID_CONFIG;
7832 		if (test_bit(FLAG_COMMIT, &ai->flags)) {
7833 			disable_MAC (ai, 1);
7834 			writeConfigRid (ai, 1);
7835 			enable_MAC(ai, 1);
7836 		}
7837 		break;
7838 	case AIROGSLIST:    ridcode = RID_SSID;         break;
7839 	case AIROGVLIST:    ridcode = RID_APLIST;       break;
7840 	case AIROGDRVNAM:   ridcode = RID_DRVNAME;      break;
7841 	case AIROGEHTENC:   ridcode = RID_ETHERENCAP;   break;
7842 	case AIROGWEPKTMP:  ridcode = RID_WEP_TEMP;	break;
7843 	case AIROGWEPKNV:   ridcode = RID_WEP_PERM;	break;
7844 	case AIROGSTAT:     ridcode = RID_STATUS;       break;
7845 	case AIROGSTATSD32: ridcode = RID_STATSDELTA;   break;
7846 	case AIROGSTATSC32: ridcode = RID_STATS;        break;
7847 	case AIROGMICSTATS:
7848 		if (copy_to_user(comp->data, &ai->micstats,
7849 				 min((int)comp->len, (int)sizeof(ai->micstats))))
7850 			return -EFAULT;
7851 		return 0;
7852 	case AIRORRID:      ridcode = comp->ridnum;     break;
7853 	default:
7854 		return -EINVAL;
7855 	}
7856 
7857 	if (ridcode == RID_WEP_TEMP || ridcode == RID_WEP_PERM) {
7858 		/* Only super-user can read WEP keys */
7859 		if (!capable(CAP_NET_ADMIN))
7860 			return -EPERM;
7861 	}
7862 
7863 	if ((iobuf = kzalloc(RIDSIZE, GFP_KERNEL)) == NULL)
7864 		return -ENOMEM;
7865 
7866 	PC4500_readrid(ai, ridcode, iobuf, RIDSIZE, 1);
7867 	/* get the count of bytes in the rid  docs say 1st 2 bytes is it.
7868 	 * then return it to the user
7869 	 * 9/22/2000 Honor user given length
7870 	 */
7871 	len = comp->len;
7872 
7873 	if (copy_to_user(comp->data, iobuf, min(len, (int)RIDSIZE))) {
7874 		kfree (iobuf);
7875 		return -EFAULT;
7876 	}
7877 	kfree (iobuf);
7878 	return 0;
7879 }
7880 
7881 /*
7882  * Danger Will Robinson write the rids here
7883  */
7884 
writerids(struct net_device * dev,aironet_ioctl * comp)7885 static int writerids(struct net_device *dev, aironet_ioctl *comp)
7886 {
7887 	struct airo_info *ai = dev->ml_priv;
7888 	int  ridcode;
7889         int  enabled;
7890 	int (*writer)(struct airo_info *, u16 rid, const void *, int, int);
7891 	unsigned char *iobuf;
7892 
7893 	/* Only super-user can write RIDs */
7894 	if (!capable(CAP_NET_ADMIN))
7895 		return -EPERM;
7896 
7897 	if (test_bit(FLAG_FLASHING, &ai->flags))
7898 		return -EIO;
7899 
7900 	ridcode = 0;
7901 	writer = do_writerid;
7902 
7903 	switch(comp->command)
7904 	{
7905 	case AIROPSIDS:     ridcode = RID_SSID;         break;
7906 	case AIROPCAP:      ridcode = RID_CAPABILITIES; break;
7907 	case AIROPAPLIST:   ridcode = RID_APLIST;       break;
7908 	case AIROPCFG: ai->config.len = 0;
7909 			    clear_bit(FLAG_COMMIT, &ai->flags);
7910 			    ridcode = RID_CONFIG;       break;
7911 	case AIROPWEPKEYNV: ridcode = RID_WEP_PERM;     break;
7912 	case AIROPLEAPUSR:  ridcode = RID_LEAPUSERNAME; break;
7913 	case AIROPLEAPPWD:  ridcode = RID_LEAPPASSWORD; break;
7914 	case AIROPWEPKEY:   ridcode = RID_WEP_TEMP; writer = PC4500_writerid;
7915 		break;
7916 	case AIROPLEAPUSR+1: ridcode = 0xFF2A;          break;
7917 	case AIROPLEAPUSR+2: ridcode = 0xFF2B;          break;
7918 
7919 		/* this is not really a rid but a command given to the card
7920 		 * same with MAC off
7921 		 */
7922 	case AIROPMACON:
7923 		if (enable_MAC(ai, 1) != 0)
7924 			return -EIO;
7925 		return 0;
7926 
7927 		/*
7928 		 * Evidently this code in the airo driver does not get a symbol
7929 		 * as disable_MAC. it's probably so short the compiler does not gen one.
7930 		 */
7931 	case AIROPMACOFF:
7932 		disable_MAC(ai, 1);
7933 		return 0;
7934 
7935 		/* This command merely clears the counts does not actually store any data
7936 		 * only reads rid. But as it changes the cards state, I put it in the
7937 		 * writerid routines.
7938 		 */
7939 	case AIROPSTCLR:
7940 		if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL)
7941 			return -ENOMEM;
7942 
7943 		PC4500_readrid(ai, RID_STATSDELTACLEAR, iobuf, RIDSIZE, 1);
7944 
7945 		enabled = ai->micstats.enabled;
7946 		memset(&ai->micstats, 0, sizeof(ai->micstats));
7947 		ai->micstats.enabled = enabled;
7948 
7949 		if (copy_to_user(comp->data, iobuf,
7950 				 min((int)comp->len, (int)RIDSIZE))) {
7951 			kfree (iobuf);
7952 			return -EFAULT;
7953 		}
7954 		kfree (iobuf);
7955 		return 0;
7956 
7957 	default:
7958 		return -EOPNOTSUPP;	/* Blarg! */
7959 	}
7960 	if (comp->len > RIDSIZE)
7961 		return -EINVAL;
7962 
7963 	if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL)
7964 		return -ENOMEM;
7965 
7966 	if (copy_from_user(iobuf, comp->data, comp->len)) {
7967 		kfree (iobuf);
7968 		return -EFAULT;
7969 	}
7970 
7971 	if (comp->command == AIROPCFG) {
7972 		ConfigRid *cfg = (ConfigRid *)iobuf;
7973 
7974 		if (test_bit(FLAG_MIC_CAPABLE, &ai->flags))
7975 			cfg->opmode |= MODE_MIC;
7976 
7977 		if ((cfg->opmode & MODE_CFG_MASK) == MODE_STA_IBSS)
7978 			set_bit (FLAG_ADHOC, &ai->flags);
7979 		else
7980 			clear_bit (FLAG_ADHOC, &ai->flags);
7981 	}
7982 
7983 	if ((*writer)(ai, ridcode, iobuf, comp->len, 1)) {
7984 		kfree (iobuf);
7985 		return -EIO;
7986 	}
7987 	kfree (iobuf);
7988 	return 0;
7989 }
7990 
7991 /*****************************************************************************
7992  * Ancillary flash / mod functions much black magic lurkes here              *
7993  *****************************************************************************
7994  */
7995 
7996 /*
7997  * Flash command switch table
7998  */
7999 
flashcard(struct net_device * dev,aironet_ioctl * comp)8000 static int flashcard(struct net_device *dev, aironet_ioctl *comp)
8001 {
8002 	int z;
8003 
8004 	/* Only super-user can modify flash */
8005 	if (!capable(CAP_NET_ADMIN))
8006 		return -EPERM;
8007 
8008 	switch(comp->command)
8009 	{
8010 	case AIROFLSHRST:
8011 		return cmdreset((struct airo_info *)dev->ml_priv);
8012 
8013 	case AIROFLSHSTFL:
8014 		if (!AIRO_FLASH(dev) &&
8015 		    (AIRO_FLASH(dev) = kmalloc(FLASHSIZE, GFP_KERNEL)) == NULL)
8016 			return -ENOMEM;
8017 		return setflashmode((struct airo_info *)dev->ml_priv);
8018 
8019 	case AIROFLSHGCHR: /* Get char from aux */
8020 		if (comp->len != sizeof(int))
8021 			return -EINVAL;
8022 		if (copy_from_user(&z, comp->data, comp->len))
8023 			return -EFAULT;
8024 		return flashgchar((struct airo_info *)dev->ml_priv, z, 8000);
8025 
8026 	case AIROFLSHPCHR: /* Send char to card. */
8027 		if (comp->len != sizeof(int))
8028 			return -EINVAL;
8029 		if (copy_from_user(&z, comp->data, comp->len))
8030 			return -EFAULT;
8031 		return flashpchar((struct airo_info *)dev->ml_priv, z, 8000);
8032 
8033 	case AIROFLPUTBUF: /* Send 32k to card */
8034 		if (!AIRO_FLASH(dev))
8035 			return -ENOMEM;
8036 		if (comp->len > FLASHSIZE)
8037 			return -EINVAL;
8038 		if (copy_from_user(AIRO_FLASH(dev), comp->data, comp->len))
8039 			return -EFAULT;
8040 
8041 		flashputbuf((struct airo_info *)dev->ml_priv);
8042 		return 0;
8043 
8044 	case AIRORESTART:
8045 		if (flashrestart((struct airo_info *)dev->ml_priv, dev))
8046 			return -EIO;
8047 		return 0;
8048 	}
8049 	return -EINVAL;
8050 }
8051 
8052 #define FLASH_COMMAND  0x7e7e
8053 
8054 /*
8055  * STEP 1)
8056  * Disable MAC and do soft reset on
8057  * card.
8058  */
8059 
cmdreset(struct airo_info * ai)8060 static int cmdreset(struct airo_info *ai)
8061 {
8062 	disable_MAC(ai, 1);
8063 
8064 	if (!waitbusy (ai)) {
8065 		airo_print_info(ai->dev->name, "Waitbusy hang before RESET");
8066 		return -EBUSY;
8067 	}
8068 
8069 	OUT4500(ai, COMMAND, CMD_SOFTRESET);
8070 
8071 	ssleep(1);			/* WAS 600 12/7/00 */
8072 
8073 	if (!waitbusy (ai)) {
8074 		airo_print_info(ai->dev->name, "Waitbusy hang AFTER RESET");
8075 		return -EBUSY;
8076 	}
8077 	return 0;
8078 }
8079 
8080 /* STEP 2)
8081  * Put the card in legendary flash
8082  * mode
8083  */
8084 
setflashmode(struct airo_info * ai)8085 static int setflashmode (struct airo_info *ai)
8086 {
8087 	set_bit (FLAG_FLASHING, &ai->flags);
8088 
8089 	OUT4500(ai, SWS0, FLASH_COMMAND);
8090 	OUT4500(ai, SWS1, FLASH_COMMAND);
8091 	if (probe) {
8092 		OUT4500(ai, SWS0, FLASH_COMMAND);
8093 		OUT4500(ai, COMMAND, 0x10);
8094 	} else {
8095 		OUT4500(ai, SWS2, FLASH_COMMAND);
8096 		OUT4500(ai, SWS3, FLASH_COMMAND);
8097 		OUT4500(ai, COMMAND, 0);
8098 	}
8099 	msleep(500);		/* 500ms delay */
8100 
8101 	if (!waitbusy(ai)) {
8102 		clear_bit (FLAG_FLASHING, &ai->flags);
8103 		airo_print_info(ai->dev->name, "Waitbusy hang after setflash mode");
8104 		return -EIO;
8105 	}
8106 	return 0;
8107 }
8108 
8109 /* Put character to SWS0 wait for dwelltime
8110  * x 50us for  echo .
8111  */
8112 
flashpchar(struct airo_info * ai,int byte,int dwelltime)8113 static int flashpchar(struct airo_info *ai, int byte, int dwelltime)
8114 {
8115 	int echo;
8116 	int waittime;
8117 
8118 	byte |= 0x8000;
8119 
8120 	if (dwelltime == 0)
8121 		dwelltime = 200;
8122 
8123 	waittime = dwelltime;
8124 
8125 	/* Wait for busy bit d15 to go false indicating buffer empty */
8126 	while ((IN4500 (ai, SWS0) & 0x8000) && waittime > 0) {
8127 		udelay (50);
8128 		waittime -= 50;
8129 	}
8130 
8131 	/* timeout for busy clear wait */
8132 	if (waittime <= 0) {
8133 		airo_print_info(ai->dev->name, "flash putchar busywait timeout!");
8134 		return -EBUSY;
8135 	}
8136 
8137 	/* Port is clear now write byte and wait for it to echo back */
8138 	do {
8139 		OUT4500(ai, SWS0, byte);
8140 		udelay(50);
8141 		dwelltime -= 50;
8142 		echo = IN4500(ai, SWS1);
8143 	} while (dwelltime >= 0 && echo != byte);
8144 
8145 	OUT4500(ai, SWS1, 0);
8146 
8147 	return (echo == byte) ? 0 : -EIO;
8148 }
8149 
8150 /*
8151  * Get a character from the card matching matchbyte
8152  * Step 3)
8153  */
flashgchar(struct airo_info * ai,int matchbyte,int dwelltime)8154 static int flashgchar(struct airo_info *ai, int matchbyte, int dwelltime)
8155 {
8156 	int           rchar;
8157 	unsigned char rbyte = 0;
8158 
8159 	do {
8160 		rchar = IN4500(ai, SWS1);
8161 
8162 		if (dwelltime && !(0x8000 & rchar)) {
8163 			dwelltime -= 10;
8164 			mdelay(10);
8165 			continue;
8166 		}
8167 		rbyte = 0xff & rchar;
8168 
8169 		if ((rbyte == matchbyte) && (0x8000 & rchar)) {
8170 			OUT4500(ai, SWS1, 0);
8171 			return 0;
8172 		}
8173 		if (rbyte == 0x81 || rbyte == 0x82 || rbyte == 0x83 || rbyte == 0x1a || 0xffff == rchar)
8174 			break;
8175 		OUT4500(ai, SWS1, 0);
8176 
8177 	} while (dwelltime > 0);
8178 	return -EIO;
8179 }
8180 
8181 /*
8182  * Transfer 32k of firmware data from user buffer to our buffer and
8183  * send to the card
8184  */
8185 
flashputbuf(struct airo_info * ai)8186 static int flashputbuf(struct airo_info *ai)
8187 {
8188 	int            nwords;
8189 
8190 	/* Write stuff */
8191 	if (test_bit(FLAG_MPI,&ai->flags))
8192 		memcpy_toio(ai->pciaux + 0x8000, ai->flash, FLASHSIZE);
8193 	else {
8194 		OUT4500(ai, AUXPAGE, 0x100);
8195 		OUT4500(ai, AUXOFF, 0);
8196 
8197 		for (nwords = 0; nwords != FLASHSIZE / 2; nwords++) {
8198 			OUT4500(ai, AUXDATA, ai->flash[nwords] & 0xffff);
8199 		}
8200 	}
8201 	OUT4500(ai, SWS0, 0x8000);
8202 
8203 	return 0;
8204 }
8205 
8206 /*
8207  *
8208  */
flashrestart(struct airo_info * ai,struct net_device * dev)8209 static int flashrestart(struct airo_info *ai, struct net_device *dev)
8210 {
8211 	int    i, status;
8212 
8213 	ssleep(1);			/* Added 12/7/00 */
8214 	clear_bit (FLAG_FLASHING, &ai->flags);
8215 	if (test_bit(FLAG_MPI, &ai->flags)) {
8216 		status = mpi_init_descriptors(ai);
8217 		if (status != SUCCESS)
8218 			return status;
8219 	}
8220 	status = setup_card(ai, dev, 1);
8221 
8222 	if (!test_bit(FLAG_MPI,&ai->flags))
8223 		for (i = 0; i < MAX_FIDS; i++) {
8224 			ai->fids[i] = transmit_allocate
8225 				(ai, AIRO_DEF_MTU, i >= MAX_FIDS / 2);
8226 		}
8227 
8228 	ssleep(1);			/* Added 12/7/00 */
8229 	return status;
8230 }
8231 #endif /* CISCO_EXT */
8232 
8233 /*
8234     This program is free software; you can redistribute it and/or
8235     modify it under the terms of the GNU General Public License
8236     as published by the Free Software Foundation; either version 2
8237     of the License, or (at your option) any later version.
8238 
8239     This program is distributed in the hope that it will be useful,
8240     but WITHOUT ANY WARRANTY; without even the implied warranty of
8241     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
8242     GNU General Public License for more details.
8243 
8244     In addition:
8245 
8246     Redistribution and use in source and binary forms, with or without
8247     modification, are permitted provided that the following conditions
8248     are met:
8249 
8250     1. Redistributions of source code must retain the above copyright
8251        notice, this list of conditions and the following disclaimer.
8252     2. Redistributions in binary form must reproduce the above copyright
8253        notice, this list of conditions and the following disclaimer in the
8254        documentation and/or other materials provided with the distribution.
8255     3. The name of the author may not be used to endorse or promote
8256        products derived from this software without specific prior written
8257        permission.
8258 
8259     THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
8260     IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
8261     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
8262     ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
8263     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
8264     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
8265     SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
8266     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
8267     STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
8268     IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
8269     POSSIBILITY OF SUCH DAMAGE.
8270 */
8271 
8272 module_init(airo_init_module);
8273 module_exit(airo_cleanup_module);
8274