1 /*======================================================================
3 Aironet driver for 4500 and 4800 series cards
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
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>.
20 ======================================================================*/
22 #include <linux/config.h>
23 #include <linux/init.h>
25 #include <linux/kernel.h>
26 #include <linux/module.h>
27 #include <linux/proc_fs.h>
28 #include <linux/smp_lock.h>
30 #include <linux/sched.h>
31 #include <linux/ptrace.h>
32 #include <linux/slab.h>
33 #include <linux/string.h>
34 #include <linux/timer.h>
35 #include <linux/interrupt.h>
37 #include <linux/bitops.h>
39 #include <asm/system.h>
41 #include <linux/netdevice.h>
42 #include <linux/etherdevice.h>
43 #include <linux/skbuff.h>
44 #include <linux/if_arp.h>
45 #include <linux/ioport.h>
46 #include <linux/pci.h>
47 #include <asm/uaccess.h>
50 static struct pci_device_id card_ids[] = {
51 { 0x14b9, 1, PCI_ANY_ID, PCI_ANY_ID, },
52 { 0x14b9, 0x4500, PCI_ANY_ID, PCI_ANY_ID },
53 { 0x14b9, 0x4800, PCI_ANY_ID, PCI_ANY_ID, },
54 { 0x14b9, 0x0340, PCI_ANY_ID, PCI_ANY_ID, },
55 { 0x14b9, 0x0350, PCI_ANY_ID, PCI_ANY_ID, },
56 { 0x14b9, 0x5000, PCI_ANY_ID, PCI_ANY_ID, },
57 { 0x14b9, 0xa504, PCI_ANY_ID, PCI_ANY_ID, },
60 MODULE_DEVICE_TABLE(pci, card_ids);
62 static int airo_pci_probe(struct pci_dev *, const struct pci_device_id *);
63 static void airo_pci_remove(struct pci_dev *);
64 static int airo_pci_suspend(struct pci_dev *pdev, pm_message_t state);
65 static int airo_pci_resume(struct pci_dev *pdev);
67 static struct pci_driver airo_driver = {
70 .probe = airo_pci_probe,
71 .remove = __devexit_p(airo_pci_remove),
72 .suspend = airo_pci_suspend,
73 .resume = airo_pci_resume,
75 #endif /* CONFIG_PCI */
77 /* Include Wireless Extension definition and check version - Jean II */
78 #include <linux/wireless.h>
79 #define WIRELESS_SPY // enable iwspy support
80 #include <net/iw_handler.h> // New driver API
82 #define CISCO_EXT // enable Cisco extensions
84 #include <linux/delay.h>
87 /* Support Cisco MIC feature */
90 #if defined(MICSUPPORT) && !defined(CONFIG_CRYPTO)
91 #warning MIC support requires Crypto API
95 /* Hack to do some power saving */
98 /* As you can see this list is HUGH!
99 I really don't know what a lot of these counts are about, but they
100 are all here for completeness. If the IGNLABEL macro is put in
101 infront of the label, that statistic will not be included in the list
102 of statistics in the /proc filesystem */
104 #define IGNLABEL(comment) NULL
105 static char *statsLabels[] = {
107 IGNLABEL("RxPlcpCrcErr"),
108 IGNLABEL("RxPlcpFormatErr"),
109 IGNLABEL("RxPlcpLengthErr"),
140 "LostSync-MissedBeacons",
141 "LostSync-ArlExceeded",
143 "LostSync-Disassoced",
144 "LostSync-TsfTiming",
153 IGNLABEL("HmacTxMc"),
154 IGNLABEL("HmacTxBc"),
155 IGNLABEL("HmacTxUc"),
156 IGNLABEL("HmacTxFail"),
157 IGNLABEL("HmacRxMc"),
158 IGNLABEL("HmacRxBc"),
159 IGNLABEL("HmacRxUc"),
160 IGNLABEL("HmacRxDiscard"),
161 IGNLABEL("HmacRxAccepted"),
169 IGNLABEL("ReasonOutsideTable"),
170 IGNLABEL("ReasonStatus1"),
171 IGNLABEL("ReasonStatus2"),
172 IGNLABEL("ReasonStatus3"),
173 IGNLABEL("ReasonStatus4"),
174 IGNLABEL("ReasonStatus5"),
175 IGNLABEL("ReasonStatus6"),
176 IGNLABEL("ReasonStatus7"),
177 IGNLABEL("ReasonStatus8"),
178 IGNLABEL("ReasonStatus9"),
179 IGNLABEL("ReasonStatus10"),
180 IGNLABEL("ReasonStatus11"),
181 IGNLABEL("ReasonStatus12"),
182 IGNLABEL("ReasonStatus13"),
183 IGNLABEL("ReasonStatus14"),
184 IGNLABEL("ReasonStatus15"),
185 IGNLABEL("ReasonStatus16"),
186 IGNLABEL("ReasonStatus17"),
187 IGNLABEL("ReasonStatus18"),
188 IGNLABEL("ReasonStatus19"),
208 #define RUN_AT(x) (jiffies+(x))
212 /* These variables are for insmod, since it seems that the rates
213 can only be set in setup_card. Rates should be a comma separated
214 (no spaces) list of rates (up to 8). */
217 static int basic_rate;
218 static char *ssids[3];
224 int maxencrypt /* = 0 */; /* The highest rate that the card can encrypt at.
225 0 means no limit. For old cards this was 4 */
227 static int auto_wep /* = 0 */; /* If set, it tries to figure out the wep mode */
228 static int aux_bap /* = 0 */; /* Checks to see if the aux ports are needed to read
229 the bap, needed on some older cards and buses. */
232 static int probe = 1;
234 static int proc_uid /* = 0 */;
236 static int proc_gid /* = 0 */;
238 static int airo_perm = 0555;
240 static int proc_perm = 0644;
242 MODULE_AUTHOR("Benjamin Reed");
243 MODULE_DESCRIPTION("Support for Cisco/Aironet 802.11 wireless ethernet \
244 cards. Direct support for ISA/PCI/MPI cards and support \
245 for PCMCIA when used with airo_cs.");
246 MODULE_LICENSE("Dual BSD/GPL");
247 MODULE_SUPPORTED_DEVICE("Aironet 4500, 4800 and Cisco 340/350");
248 module_param_array(io, int, NULL, 0);
249 module_param_array(irq, int, NULL, 0);
250 module_param(basic_rate, int, 0);
251 module_param_array(rates, int, NULL, 0);
252 module_param_array(ssids, charp, NULL, 0);
253 module_param(auto_wep, int, 0);
254 MODULE_PARM_DESC(auto_wep, "If non-zero, the driver will keep looping through \
255 the authentication options until an association is made. The value of \
256 auto_wep is number of the wep keys to check. A value of 2 will try using \
257 the key at index 0 and index 1.");
258 module_param(aux_bap, int, 0);
259 MODULE_PARM_DESC(aux_bap, "If non-zero, the driver will switch into a mode \
260 than seems to work better for older cards with some older buses. Before \
261 switching it checks that the switch is needed.");
262 module_param(maxencrypt, int, 0);
263 MODULE_PARM_DESC(maxencrypt, "The maximum speed that the card can do \
264 encryption. Units are in 512kbs. Zero (default) means there is no limit. \
265 Older cards used to be limited to 2mbs (4).");
266 module_param(adhoc, int, 0);
267 MODULE_PARM_DESC(adhoc, "If non-zero, the card will start in adhoc mode.");
268 module_param(probe, int, 0);
269 MODULE_PARM_DESC(probe, "If zero, the driver won't start the card.");
271 module_param(proc_uid, int, 0);
272 MODULE_PARM_DESC(proc_uid, "The uid that the /proc files will belong to.");
273 module_param(proc_gid, int, 0);
274 MODULE_PARM_DESC(proc_gid, "The gid that the /proc files will belong to.");
275 module_param(airo_perm, int, 0);
276 MODULE_PARM_DESC(airo_perm, "The permission bits of /proc/[driver/]aironet.");
277 module_param(proc_perm, int, 0);
278 MODULE_PARM_DESC(proc_perm, "The permission bits of the files in /proc");
280 /* This is a kind of sloppy hack to get this information to OUT4500 and
281 IN4500. I would be extremely interested in the situation where this
282 doesn't work though!!! */
283 static int do8bitIO = 0;
292 #define MAC_ENABLE 0x0001
293 #define MAC_DISABLE 0x0002
294 #define CMD_LOSE_SYNC 0x0003 /* Not sure what this does... */
295 #define CMD_SOFTRESET 0x0004
296 #define HOSTSLEEP 0x0005
297 #define CMD_MAGIC_PKT 0x0006
298 #define CMD_SETWAKEMASK 0x0007
299 #define CMD_READCFG 0x0008
300 #define CMD_SETMODE 0x0009
301 #define CMD_ALLOCATETX 0x000a
302 #define CMD_TRANSMIT 0x000b
303 #define CMD_DEALLOCATETX 0x000c
305 #define CMD_WORKAROUND 0x0011
306 #define CMD_ALLOCATEAUX 0x0020
307 #define CMD_ACCESS 0x0021
308 #define CMD_PCIBAP 0x0022
309 #define CMD_PCIAUX 0x0023
310 #define CMD_ALLOCBUF 0x0028
311 #define CMD_GETTLV 0x0029
312 #define CMD_PUTTLV 0x002a
313 #define CMD_DELTLV 0x002b
314 #define CMD_FINDNEXTTLV 0x002c
315 #define CMD_PSPNODES 0x0030
316 #define CMD_SETCW 0x0031
317 #define CMD_SETPCF 0x0032
318 #define CMD_SETPHYREG 0x003e
319 #define CMD_TXTEST 0x003f
320 #define MAC_ENABLETX 0x0101
321 #define CMD_LISTBSS 0x0103
322 #define CMD_SAVECFG 0x0108
323 #define CMD_ENABLEAUX 0x0111
324 #define CMD_WRITERID 0x0121
325 #define CMD_USEPSPNODES 0x0130
326 #define MAC_ENABLERX 0x0201
329 #define ERROR_QUALIF 0x00
330 #define ERROR_ILLCMD 0x01
331 #define ERROR_ILLFMT 0x02
332 #define ERROR_INVFID 0x03
333 #define ERROR_INVRID 0x04
334 #define ERROR_LARGE 0x05
335 #define ERROR_NDISABL 0x06
336 #define ERROR_ALLOCBSY 0x07
337 #define ERROR_NORD 0x0B
338 #define ERROR_NOWR 0x0C
339 #define ERROR_INVFIDTX 0x0D
340 #define ERROR_TESTACT 0x0E
341 #define ERROR_TAGNFND 0x12
342 #define ERROR_DECODE 0x20
343 #define ERROR_DESCUNAV 0x21
344 #define ERROR_BADLEN 0x22
345 #define ERROR_MODE 0x80
346 #define ERROR_HOP 0x81
347 #define ERROR_BINTER 0x82
348 #define ERROR_RXMODE 0x83
349 #define ERROR_MACADDR 0x84
350 #define ERROR_RATES 0x85
351 #define ERROR_ORDER 0x86
352 #define ERROR_SCAN 0x87
353 #define ERROR_AUTH 0x88
354 #define ERROR_PSMODE 0x89
355 #define ERROR_RTYPE 0x8A
356 #define ERROR_DIVER 0x8B
357 #define ERROR_SSID 0x8C
358 #define ERROR_APLIST 0x8D
359 #define ERROR_AUTOWAKE 0x8E
360 #define ERROR_LEAP 0x8F
371 #define LINKSTAT 0x10
375 #define TXALLOCFID 0x22
376 #define TXCOMPLFID 0x24
391 /* Offset into aux memory for descriptors */
392 #define AUX_OFFSET 0x800
393 /* Size of allocated packets */
396 /* Size of the transmit queue */
400 #define BAP0 0 // Used for receiving packets
401 #define BAP1 2 // Used for xmiting packets and working with RIDS
404 #define COMMAND_BUSY 0x8000
406 #define BAP_BUSY 0x8000
407 #define BAP_ERR 0x4000
408 #define BAP_DONE 0x2000
410 #define PROMISC 0xffff
411 #define NOPROMISC 0x0000
414 #define EV_CLEARCOMMANDBUSY 0x4000
417 #define EV_TXEXC 0x04
418 #define EV_ALLOC 0x08
420 #define EV_AWAKE 0x100
421 #define EV_TXCPY 0x400
422 #define EV_UNKNOWN 0x800
423 #define EV_MIC 0x1000 /* Message Integrity Check Interrupt */
424 #define EV_AWAKEN 0x2000
425 #define STATUS_INTS (EV_AWAKE|EV_LINK|EV_TXEXC|EV_TX|EV_TXCPY|EV_RX|EV_MIC)
427 #ifdef CHECK_UNKNOWN_INTS
428 #define IGNORE_INTS ( EV_CMD | EV_UNKNOWN)
430 #define IGNORE_INTS (~STATUS_INTS)
437 #define RID_CAPABILITIES 0xFF00
438 #define RID_APINFO 0xFF01
439 #define RID_RADIOINFO 0xFF02
440 #define RID_UNKNOWN3 0xFF03
441 #define RID_RSSI 0xFF04
442 #define RID_CONFIG 0xFF10
443 #define RID_SSID 0xFF11
444 #define RID_APLIST 0xFF12
445 #define RID_DRVNAME 0xFF13
446 #define RID_ETHERENCAP 0xFF14
447 #define RID_WEP_TEMP 0xFF15
448 #define RID_WEP_PERM 0xFF16
449 #define RID_MODULATION 0xFF17
450 #define RID_OPTIONS 0xFF18
451 #define RID_ACTUALCONFIG 0xFF20 /*readonly*/
452 #define RID_FACTORYCONFIG 0xFF21
453 #define RID_UNKNOWN22 0xFF22
454 #define RID_LEAPUSERNAME 0xFF23
455 #define RID_LEAPPASSWORD 0xFF24
456 #define RID_STATUS 0xFF50
457 #define RID_BEACON_HST 0xFF51
458 #define RID_BUSY_HST 0xFF52
459 #define RID_RETRIES_HST 0xFF53
460 #define RID_UNKNOWN54 0xFF54
461 #define RID_UNKNOWN55 0xFF55
462 #define RID_UNKNOWN56 0xFF56
463 #define RID_MIC 0xFF57
464 #define RID_STATS16 0xFF60
465 #define RID_STATS16DELTA 0xFF61
466 #define RID_STATS16DELTACLEAR 0xFF62
467 #define RID_STATS 0xFF68
468 #define RID_STATSDELTA 0xFF69
469 #define RID_STATSDELTACLEAR 0xFF6A
470 #define RID_ECHOTEST_RID 0xFF70
471 #define RID_ECHOTEST_RESULTS 0xFF71
472 #define RID_BSSLISTFIRST 0xFF72
473 #define RID_BSSLISTNEXT 0xFF73
490 * Rids and endian-ness: The Rids will always be in cpu endian, since
491 * this all the patches from the big-endian guys end up doing that.
492 * so all rid access should use the read/writeXXXRid routines.
495 /* This is redundant for x86 archs, but it seems necessary for ARM */
498 /* This structure came from an email sent to me from an engineer at
499 aironet for inclusion into this driver */
508 /* These structures are from the Aironet's PC4500 Developers Manual */
522 #define MOD_DEFAULT 0
528 u16 len; /* sizeof(ConfigRid) */
529 u16 opmode; /* operating mode */
530 #define MODE_STA_IBSS 0
531 #define MODE_STA_ESS 1
533 #define MODE_AP_RPTR 3
534 #define MODE_ETHERNET_HOST (0<<8) /* rx payloads converted */
535 #define MODE_LLC_HOST (1<<8) /* rx payloads left as is */
536 #define MODE_AIRONET_EXTEND (1<<9) /* enable Aironet extenstions */
537 #define MODE_AP_INTERFACE (1<<10) /* enable ap interface extensions */
538 #define MODE_ANTENNA_ALIGN (1<<11) /* enable antenna alignment */
539 #define MODE_ETHER_LLC (1<<12) /* enable ethernet LLC */
540 #define MODE_LEAF_NODE (1<<13) /* enable leaf node bridge */
541 #define MODE_CF_POLLABLE (1<<14) /* enable CF pollable */
542 #define MODE_MIC (1<<15) /* enable MIC */
543 u16 rmode; /* receive mode */
544 #define RXMODE_BC_MC_ADDR 0
545 #define RXMODE_BC_ADDR 1 /* ignore multicasts */
546 #define RXMODE_ADDR 2 /* ignore multicast and broadcast */
547 #define RXMODE_RFMON 3 /* wireless monitor mode */
548 #define RXMODE_RFMON_ANYBSS 4
549 #define RXMODE_LANMON 5 /* lan style monitor -- data packets only */
550 #define RXMODE_DISABLE_802_3_HEADER (1<<8) /* disables 802.3 header on rx */
551 #define RXMODE_NORMALIZED_RSSI (1<<9) /* return normalized RSSI */
554 u8 macAddr[ETH_ALEN];
558 u16 txLifetime; /* in kusec */
559 u16 rxLifetime; /* in kusec */
562 u16 u16deviceType; /* for overriding device type */
566 /*---------- Scanning/Associating ----------*/
568 #define SCANMODE_ACTIVE 0
569 #define SCANMODE_PASSIVE 1
570 #define SCANMODE_AIROSCAN 2
571 u16 probeDelay; /* in kusec */
572 u16 probeEnergyTimeout; /* in kusec */
573 u16 probeResponseTimeout;
574 u16 beaconListenTimeout;
578 #define AUTH_OPEN 0x1
579 #define AUTH_ENCRYPT 0x101
580 #define AUTH_SHAREDKEY 0x102
581 #define AUTH_ALLOW_UNENCRYPTED 0x200
582 u16 associationTimeout;
583 u16 specifiedApTimeout;
584 u16 offlineScanInterval;
585 u16 offlineScanDuration;
587 u16 maxBeaconLostTime;
589 #define DISABLE_REFRESH 0xFFFF
591 /*---------- Power save operation ----------*/
593 #define POWERSAVE_CAM 0
594 #define POWERSAVE_PSP 1
595 #define POWERSAVE_PSPCAM 2
598 u16 fastListenInterval;
602 /*---------- Ap/Ibss config items ----------*/
611 /*---------- Radio configuration ----------*/
613 #define RADIOTYPE_DEFAULT 0
614 #define RADIOTYPE_802_11 1
615 #define RADIOTYPE_LEGACY 2
619 #define TXPOWER_DEFAULT 0
621 #define RSSI_DEFAULT 0
623 #define PREAMBLE_AUTO 0
624 #define PREAMBLE_LONG 1
625 #define PREAMBLE_SHORT 2
629 /*---------- Aironet Extensions ----------*/
635 /*---------- Aironet Extensions ----------*/
637 #define MAGIC_ACTION_STSCHG 1
638 #define MAGIC_ACTION_RESUME 2
639 #define MAGIC_IGNORE_MCAST (1<<8)
640 #define MAGIC_IGNORE_BCAST (1<<9)
641 #define MAGIC_SWITCH_TO_PSP (0<<10)
642 #define MAGIC_STAY_IN_CAM (1<<10)
656 u8 bssid[4][ETH_ALEN];
670 u16 normalizedSignalStrength;
673 u8 noisePercent; /* Noise percent in last second */
674 u8 noisedBm; /* Noise dBm in last second */
675 u8 noiseAvePercent; /* Noise percent in last minute */
676 u8 noiseAvedBm; /* Noise dBm in last minute */
677 u8 noiseMaxPercent; /* Highest noise percent in last minute */
678 u8 noiseMaxdBm; /* Highest noise dbm in last minute */
682 #define STAT_NOPACKETS 0
683 #define STAT_NOCARRIERSET 10
684 #define STAT_GOTCARRIERSET 11
685 #define STAT_WRONGSSID 20
686 #define STAT_BADCHANNEL 25
687 #define STAT_BADBITRATES 30
688 #define STAT_BADPRIVACY 35
689 #define STAT_APFOUND 40
690 #define STAT_APREJECTED 50
691 #define STAT_AUTHENTICATING 60
692 #define STAT_DEAUTHENTICATED 61
693 #define STAT_AUTHTIMEOUT 62
694 #define STAT_ASSOCIATING 70
695 #define STAT_DEASSOCIATED 71
696 #define STAT_ASSOCTIMEOUT 72
697 #define STAT_NOTAIROAP 73
698 #define STAT_ASSOCIATED 80
699 #define STAT_LEAPING 90
700 #define STAT_LEAPFAILED 91
701 #define STAT_LEAPTIMEDOUT 92
702 #define STAT_LEAPCOMPLETE 93
725 char factoryAddr[ETH_ALEN];
726 char aironetAddr[ETH_ALEN];
729 char callid[ETH_ALEN];
730 char supportedRates[8];
733 u16 txPowerLevels[8];
748 u16 index; /* First is 0 and 0xffff means end of list */
749 #define RADIO_FH 1 /* Frequency hopping radio type */
750 #define RADIO_DS 2 /* Direct sequence radio type */
751 #define RADIO_TMA 4 /* Proprietary radio used in old cards (2500) */
753 u8 bssid[ETH_ALEN]; /* Mac address of the BSS */
758 #define CAP_ESS (1<<0)
759 #define CAP_IBSS (1<<1)
760 #define CAP_PRIVACY (1<<4)
761 #define CAP_SHORTHDR (1<<5)
764 u8 rates[8]; /* Same as rates for config rid */
765 struct { /* For frequency hopping only */
819 #define TXCTL_TXOK (1<<1) /* report if tx is ok */
820 #define TXCTL_TXEX (1<<2) /* report if tx fails */
821 #define TXCTL_802_3 (0<<3) /* 802.3 packet */
822 #define TXCTL_802_11 (1<<3) /* 802.11 mac packet */
823 #define TXCTL_ETHERNET (0<<4) /* payload has ethertype */
824 #define TXCTL_LLC (1<<4) /* payload is llc */
825 #define TXCTL_RELEASE (0<<5) /* release after completion */
826 #define TXCTL_NORELEASE (1<<5) /* on completion returns to host */
828 #define BUSY_FID 0x10000
831 #define AIROMAGIC 0xa55a
832 /* Warning : SIOCDEVPRIVATE may disapear during 2.5.X - Jean II */
833 #ifdef SIOCIWFIRSTPRIV
834 #ifdef SIOCDEVPRIVATE
835 #define AIROOLDIOCTL SIOCDEVPRIVATE
836 #define AIROOLDIDIFC AIROOLDIOCTL + 1
837 #endif /* SIOCDEVPRIVATE */
838 #else /* SIOCIWFIRSTPRIV */
839 #define SIOCIWFIRSTPRIV SIOCDEVPRIVATE
840 #endif /* SIOCIWFIRSTPRIV */
841 /* This may be wrong. When using the new SIOCIWFIRSTPRIV range, we probably
842 * should use only "GET" ioctls (last bit set to 1). "SET" ioctls are root
843 * only and don't return the modified struct ifreq to the application which
844 * is usually a problem. - Jean II */
845 #define AIROIOCTL SIOCIWFIRSTPRIV
846 #define AIROIDIFC AIROIOCTL + 1
848 /* Ioctl constants to be used in airo_ioctl.command */
850 #define AIROGCAP 0 // Capability rid
851 #define AIROGCFG 1 // USED A LOT
852 #define AIROGSLIST 2 // System ID list
853 #define AIROGVLIST 3 // List of specified AP's
854 #define AIROGDRVNAM 4 // NOTUSED
855 #define AIROGEHTENC 5 // NOTUSED
856 #define AIROGWEPKTMP 6
857 #define AIROGWEPKNV 7
859 #define AIROGSTATSC32 9
860 #define AIROGSTATSD32 10
861 #define AIROGMICRID 11
862 #define AIROGMICSTATS 12
863 #define AIROGFLAGS 13
866 #define AIRORSWVERSION 17
868 /* Leave gap of 40 commands after AIROGSTATSD32 for future */
870 #define AIROPCAP AIROGSTATSD32 + 40
871 #define AIROPVLIST AIROPCAP + 1
872 #define AIROPSLIST AIROPVLIST + 1
873 #define AIROPCFG AIROPSLIST + 1
874 #define AIROPSIDS AIROPCFG + 1
875 #define AIROPAPLIST AIROPSIDS + 1
876 #define AIROPMACON AIROPAPLIST + 1 /* Enable mac */
877 #define AIROPMACOFF AIROPMACON + 1 /* Disable mac */
878 #define AIROPSTCLR AIROPMACOFF + 1
879 #define AIROPWEPKEY AIROPSTCLR + 1
880 #define AIROPWEPKEYNV AIROPWEPKEY + 1
881 #define AIROPLEAPPWD AIROPWEPKEYNV + 1
882 #define AIROPLEAPUSR AIROPLEAPPWD + 1
886 #define AIROFLSHRST AIROPWEPKEYNV + 40
887 #define AIROFLSHGCHR AIROFLSHRST + 1
888 #define AIROFLSHSTFL AIROFLSHGCHR + 1
889 #define AIROFLSHPCHR AIROFLSHSTFL + 1
890 #define AIROFLPUTBUF AIROFLSHPCHR + 1
891 #define AIRORESTART AIROFLPUTBUF + 1
893 #define FLASHSIZE 32768
894 #define AUXMEMSIZE (256 * 1024)
896 typedef struct aironet_ioctl {
897 unsigned short command; // What to do
898 unsigned short len; // Len of data
899 unsigned short ridnum; // rid number
900 unsigned char __user *data; // d-data
903 static char swversion[] = "2.1";
904 #endif /* CISCO_EXT */
906 #define NUM_MODULES 2
907 #define MIC_MSGLEN_MAX 2400
908 #define EMMH32_MSGLEN_MAX MIC_MSGLEN_MAX
912 u8 enabled; // MIC enabled or not
913 u32 rxSuccess; // successful packets received
914 u32 rxIncorrectMIC; // pkts dropped due to incorrect MIC comparison
915 u32 rxNotMICed; // pkts dropped due to not being MIC'd
916 u32 rxMICPlummed; // pkts dropped due to not having a MIC plummed
917 u32 rxWrongSequence; // pkts dropped due to sequence number violation
922 u32 coeff[((EMMH32_MSGLEN_MAX)+3)>>2];
923 u64 accum; // accumulated mic, reduced to u32 in final()
924 int position; // current position (byte offset) in message
928 } part; // saves partial message word across update() calls
932 emmh32_context seed; // Context - the seed
933 u32 rx; // Received sequence number
934 u32 tx; // Tx sequence number
935 u32 window; // Start of window
936 u8 valid; // Flag to say if context is valid or not
941 miccntx mCtx; // Multicast context
942 miccntx uCtx; // Unicast context
946 unsigned int rid: 16;
947 unsigned int len: 15;
948 unsigned int valid: 1;
949 dma_addr_t host_addr;
953 unsigned int offset: 15;
955 unsigned int len: 15;
956 unsigned int valid: 1;
957 dma_addr_t host_addr;
961 unsigned int ctl: 15;
963 unsigned int len: 15;
964 unsigned int valid: 1;
965 dma_addr_t host_addr;
969 * Host receive descriptor
972 unsigned char __iomem *card_ram_off; /* offset into card memory of the
974 RxFid rx_desc; /* card receive descriptor */
975 char *virtual_host_addr; /* virtual address of host receive
981 * Host transmit descriptor
984 unsigned char __iomem *card_ram_off; /* offset into card memory of the
986 TxFid tx_desc; /* card transmit descriptor */
987 char *virtual_host_addr; /* virtual address of host receive
993 * Host RID descriptor
996 unsigned char __iomem *card_ram_off; /* offset into card memory of the
998 Rid rid_desc; /* card RID descriptor */
999 char *virtual_host_addr; /* virtual address of host receive
1008 #define HOST_SET (1 << 0)
1009 #define HOST_INT_TX (1 << 1) /* Interrupt on successful TX */
1010 #define HOST_INT_TXERR (1 << 2) /* Interrupt on unseccessful TX */
1011 #define HOST_LCC_PAYLOAD (1 << 4) /* LLC payload, 0 = Ethertype */
1012 #define HOST_DONT_RLSE (1 << 5) /* Don't release buffer when done */
1013 #define HOST_DONT_RETRY (1 << 6) /* Don't retry trasmit */
1014 #define HOST_CLR_AID (1 << 7) /* clear AID failure */
1015 #define HOST_RTS (1 << 9) /* Force RTS use */
1016 #define HOST_SHORT (1 << 10) /* Do short preamble */
1043 WifiCtlHdr wifictlhdr8023 = {
1045 .ctl = HOST_DONT_RLSE,
1050 // Frequency list (map channels to frequencies)
1051 static const long frequency_list[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442,
1052 2447, 2452, 2457, 2462, 2467, 2472, 2484 };
1054 // A few details needed for WEP (Wireless Equivalent Privacy)
1055 #define MAX_KEY_SIZE 13 // 128 (?) bits
1056 #define MIN_KEY_SIZE 5 // 40 bits RC4 - WEP
1057 typedef struct wep_key_t {
1059 u8 key[16]; /* 40-bit and 104-bit keys */
1062 /* Backward compatibility */
1063 #ifndef IW_ENCODE_NOKEY
1064 #define IW_ENCODE_NOKEY 0x0800 /* Key is write only, so not present */
1065 #define IW_ENCODE_MODE (IW_ENCODE_DISABLED | IW_ENCODE_RESTRICTED | IW_ENCODE_OPEN)
1066 #endif /* IW_ENCODE_NOKEY */
1068 /* List of Wireless Handlers (new API) */
1069 static const struct iw_handler_def airo_handler_def;
1070 #endif /* WIRELESS_EXT */
1072 static const char version[] = "airo.c 0.6 (Ben Reed & Javier Achirica)";
1076 static int get_dec_u16( char *buffer, int *start, int limit );
1077 static void OUT4500( struct airo_info *, u16 register, u16 value );
1078 static unsigned short IN4500( struct airo_info *, u16 register );
1079 static u16 setup_card(struct airo_info*, u8 *mac, int lock);
1080 static int enable_MAC( struct airo_info *ai, Resp *rsp, int lock );
1081 static void disable_MAC(struct airo_info *ai, int lock);
1082 static void enable_interrupts(struct airo_info*);
1083 static void disable_interrupts(struct airo_info*);
1084 static u16 issuecommand(struct airo_info*, Cmd *pCmd, Resp *pRsp);
1085 static int bap_setup(struct airo_info*, u16 rid, u16 offset, int whichbap);
1086 static int aux_bap_read(struct airo_info*, u16 *pu16Dst, int bytelen,
1088 static int fast_bap_read(struct airo_info*, u16 *pu16Dst, int bytelen,
1090 static int bap_write(struct airo_info*, const u16 *pu16Src, int bytelen,
1092 static int PC4500_accessrid(struct airo_info*, u16 rid, u16 accmd);
1093 static int PC4500_readrid(struct airo_info*, u16 rid, void *pBuf, int len, int lock);
1094 static int PC4500_writerid(struct airo_info*, u16 rid, const void
1095 *pBuf, int len, int lock);
1096 static int do_writerid( struct airo_info*, u16 rid, const void *rid_data,
1097 int len, int dummy );
1098 static u16 transmit_allocate(struct airo_info*, int lenPayload, int raw);
1099 static int transmit_802_3_packet(struct airo_info*, int len, char *pPacket);
1100 static int transmit_802_11_packet(struct airo_info*, int len, char *pPacket);
1102 static int mpi_send_packet (struct net_device *dev);
1103 static void mpi_unmap_card(struct pci_dev *pci);
1104 static void mpi_receive_802_3(struct airo_info *ai);
1105 static void mpi_receive_802_11(struct airo_info *ai);
1106 static int waitbusy (struct airo_info *ai);
1108 static irqreturn_t airo_interrupt( int irq, void* dev_id, struct pt_regs
1110 static int airo_thread(void *data);
1111 static void timer_func( struct net_device *dev );
1112 static int airo_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
1114 struct iw_statistics *airo_get_wireless_stats (struct net_device *dev);
1115 static void airo_read_wireless_stats (struct airo_info *local);
1116 #endif /* WIRELESS_EXT */
1118 static int readrids(struct net_device *dev, aironet_ioctl *comp);
1119 static int writerids(struct net_device *dev, aironet_ioctl *comp);
1120 int flashcard(struct net_device *dev, aironet_ioctl *comp);
1121 #endif /* CISCO_EXT */
1123 static void micinit(struct airo_info *ai);
1124 static int micsetup(struct airo_info *ai);
1125 static int encapsulate(struct airo_info *ai, etherHead *pPacket, MICBuffer *buffer, int len);
1126 static int decapsulate(struct airo_info *ai, MICBuffer *mic, etherHead *pPacket, u16 payLen);
1128 static u8 airo_rssi_to_dbm (tdsRssiEntry *rssi_rid, u8 rssi);
1129 static u8 airo_dbm_to_pct (tdsRssiEntry *rssi_rid, u8 dbm);
1131 #include <linux/crypto.h>
1135 struct net_device_stats stats;
1136 struct net_device *dev;
1137 /* Note, we can have MAX_FIDS outstanding. FIDs are 16-bits, so we
1138 use the high bit to mark whether it is in use. */
1140 #define MPI_MAX_FIDS 1
1143 char keyindex; // Used with auto wep
1144 char defindex; // Used with auto wep
1145 struct proc_dir_entry *proc_entry;
1146 spinlock_t aux_lock;
1147 unsigned long flags;
1148 #define FLAG_PROMISC 8 /* IFF_PROMISC 0x100 - include/linux/if.h */
1149 #define FLAG_RADIO_OFF 0 /* User disabling of MAC */
1150 #define FLAG_RADIO_DOWN 1 /* ifup/ifdown disabling of MAC */
1151 #define FLAG_RADIO_MASK 0x03
1152 #define FLAG_ENABLED 2
1153 #define FLAG_ADHOC 3 /* Needed by MIC */
1154 #define FLAG_MIC_CAPABLE 4
1155 #define FLAG_UPDATE_MULTI 5
1156 #define FLAG_UPDATE_UNI 6
1157 #define FLAG_802_11 7
1158 #define FLAG_PENDING_XMIT 9
1159 #define FLAG_PENDING_XMIT11 10
1161 #define FLAG_REGISTERED 12
1162 #define FLAG_COMMIT 13
1163 #define FLAG_RESET 14
1164 #define FLAG_FLASHING 15
1165 #define JOB_MASK 0x1ff0000
1168 #define JOB_XMIT11 18
1169 #define JOB_STATS 19
1170 #define JOB_PROMISC 20
1172 #define JOB_EVENT 22
1173 #define JOB_AUTOWEP 23
1174 #define JOB_WSTATS 24
1175 int (*bap_read)(struct airo_info*, u16 *pu16Dst, int bytelen,
1177 unsigned short *flash;
1179 struct task_struct *task;
1180 struct semaphore sem;
1182 wait_queue_head_t thr_wait;
1183 struct completion thr_exited;
1184 unsigned long expires;
1186 struct sk_buff *skb;
1189 struct net_device *wifidev;
1191 struct iw_statistics wstats; // wireless stats
1192 unsigned long scan_timestamp; /* Time started to scan */
1193 struct iw_spy_data spy_data;
1194 struct iw_public_data wireless_data;
1195 #endif /* WIRELESS_EXT */
1198 struct crypto_tfm *tfm;
1200 mic_statistics micstats;
1202 HostRxDesc rxfids[MPI_MAX_FIDS]; // rx/tx/config MPI350 descriptors
1203 HostTxDesc txfids[MPI_MAX_FIDS];
1204 HostRidDesc config_desc;
1205 unsigned long ridbus; // phys addr of config_desc
1206 struct sk_buff_head txq;// tx queue used by mpi350 code
1207 struct pci_dev *pci;
1208 unsigned char __iomem *pcimem;
1209 unsigned char __iomem *pciaux;
1210 unsigned char *shared;
1211 dma_addr_t shared_dma;
1215 #define PCI_SHARED_LEN 2*MPI_MAX_FIDS*PKTSIZE+RIDSIZE
1216 char proc_name[IFNAMSIZ];
1219 static inline int bap_read(struct airo_info *ai, u16 *pu16Dst, int bytelen,
1221 return ai->bap_read(ai, pu16Dst, bytelen, whichbap);
1224 static int setup_proc_entry( struct net_device *dev,
1225 struct airo_info *apriv );
1226 static int takedown_proc_entry( struct net_device *dev,
1227 struct airo_info *apriv );
1230 /***********************************************************************
1232 ***********************************************************************
1235 static int RxSeqValid (struct airo_info *ai,miccntx *context,int mcast,u32 micSeq);
1236 static void MoveWindow(miccntx *context, u32 micSeq);
1237 void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto_tfm *);
1238 void emmh32_init(emmh32_context *context);
1239 void emmh32_update(emmh32_context *context, u8 *pOctets, int len);
1240 void emmh32_final(emmh32_context *context, u8 digest[4]);
1242 /* micinit - Initialize mic seed */
1244 static void micinit(struct airo_info *ai)
1248 clear_bit(JOB_MIC, &ai->flags);
1249 PC4500_readrid(ai, RID_MIC, &mic_rid, sizeof(mic_rid), 0);
1252 ai->micstats.enabled = (mic_rid.state & 0x00FF) ? 1 : 0;
1254 if (ai->micstats.enabled) {
1255 /* Key must be valid and different */
1256 if (mic_rid.multicastValid && (!ai->mod[0].mCtx.valid ||
1257 (memcmp (ai->mod[0].mCtx.key, mic_rid.multicast,
1258 sizeof(ai->mod[0].mCtx.key)) != 0))) {
1259 /* Age current mic Context */
1260 memcpy(&ai->mod[1].mCtx,&ai->mod[0].mCtx,sizeof(miccntx));
1261 /* Initialize new context */
1262 memcpy(&ai->mod[0].mCtx.key,mic_rid.multicast,sizeof(mic_rid.multicast));
1263 ai->mod[0].mCtx.window = 33; //Window always points to the middle
1264 ai->mod[0].mCtx.rx = 0; //Rx Sequence numbers
1265 ai->mod[0].mCtx.tx = 0; //Tx sequence numbers
1266 ai->mod[0].mCtx.valid = 1; //Key is now valid
1268 /* Give key to mic seed */
1269 emmh32_setseed(&ai->mod[0].mCtx.seed,mic_rid.multicast,sizeof(mic_rid.multicast), ai->tfm);
1272 /* Key must be valid and different */
1273 if (mic_rid.unicastValid && (!ai->mod[0].uCtx.valid ||
1274 (memcmp(ai->mod[0].uCtx.key, mic_rid.unicast,
1275 sizeof(ai->mod[0].uCtx.key)) != 0))) {
1276 /* Age current mic Context */
1277 memcpy(&ai->mod[1].uCtx,&ai->mod[0].uCtx,sizeof(miccntx));
1278 /* Initialize new context */
1279 memcpy(&ai->mod[0].uCtx.key,mic_rid.unicast,sizeof(mic_rid.unicast));
1281 ai->mod[0].uCtx.window = 33; //Window always points to the middle
1282 ai->mod[0].uCtx.rx = 0; //Rx Sequence numbers
1283 ai->mod[0].uCtx.tx = 0; //Tx sequence numbers
1284 ai->mod[0].uCtx.valid = 1; //Key is now valid
1286 //Give key to mic seed
1287 emmh32_setseed(&ai->mod[0].uCtx.seed, mic_rid.unicast, sizeof(mic_rid.unicast), ai->tfm);
1290 /* So next time we have a valid key and mic is enabled, we will update
1291 * the sequence number if the key is the same as before.
1293 ai->mod[0].uCtx.valid = 0;
1294 ai->mod[0].mCtx.valid = 0;
1298 /* micsetup - Get ready for business */
1300 static int micsetup(struct airo_info *ai) {
1303 if (ai->tfm == NULL)
1304 ai->tfm = crypto_alloc_tfm("aes", 0);
1306 if (ai->tfm == NULL) {
1307 printk(KERN_ERR "airo: failed to load transform for AES\n");
1311 for (i=0; i < NUM_MODULES; i++) {
1312 memset(&ai->mod[i].mCtx,0,sizeof(miccntx));
1313 memset(&ai->mod[i].uCtx,0,sizeof(miccntx));
1318 char micsnap[]= {0xAA,0xAA,0x03,0x00,0x40,0x96,0x00,0x02};
1320 /*===========================================================================
1321 * Description: Mic a packet
1323 * Inputs: etherHead * pointer to an 802.3 frame
1325 * Returns: BOOLEAN if successful, otherwise false.
1326 * PacketTxLen will be updated with the mic'd packets size.
1328 * Caveats: It is assumed that the frame buffer will already
1329 * be big enough to hold the largets mic message possible.
1330 * (No memory allocation is done here).
1332 * Author: sbraneky (10/15/01)
1333 * Merciless hacks by rwilcher (1/14/02)
1336 static int encapsulate(struct airo_info *ai ,etherHead *frame, MICBuffer *mic, int payLen)
1340 // Determine correct context
1341 // If not adhoc, always use unicast key
1343 if (test_bit(FLAG_ADHOC, &ai->flags) && (frame->da[0] & 0x1))
1344 context = &ai->mod[0].mCtx;
1346 context = &ai->mod[0].uCtx;
1348 if (!context->valid)
1351 mic->typelen = htons(payLen + 16); //Length of Mic'd packet
1353 memcpy(&mic->u.snap, micsnap, sizeof(micsnap)); // Add Snap
1356 mic->seq = htonl(context->tx);
1359 emmh32_init(&context->seed); // Mic the packet
1360 emmh32_update(&context->seed,frame->da,ETH_ALEN * 2); // DA,SA
1361 emmh32_update(&context->seed,(u8*)&mic->typelen,10); // Type/Length and Snap
1362 emmh32_update(&context->seed,(u8*)&mic->seq,sizeof(mic->seq)); //SEQ
1363 emmh32_update(&context->seed,frame->da + ETH_ALEN * 2,payLen); //payload
1364 emmh32_final(&context->seed, (u8*)&mic->mic);
1366 /* New Type/length ?????????? */
1367 mic->typelen = 0; //Let NIC know it could be an oversized packet
1379 /*===========================================================================
1380 * Description: Decapsulates a MIC'd packet and returns the 802.3 packet
1381 * (removes the MIC stuff) if packet is a valid packet.
1383 * Inputs: etherHead pointer to the 802.3 packet
1385 * Returns: BOOLEAN - TRUE if packet should be dropped otherwise FALSE
1387 * Author: sbraneky (10/15/01)
1388 * Merciless hacks by rwilcher (1/14/02)
1389 *---------------------------------------------------------------------------
1392 static int decapsulate(struct airo_info *ai, MICBuffer *mic, etherHead *eth, u16 payLen)
1398 mic_error micError = NONE;
1400 // Check if the packet is a Mic'd packet
1402 if (!ai->micstats.enabled) {
1403 //No Mic set or Mic OFF but we received a MIC'd packet.
1404 if (memcmp ((u8*)eth + 14, micsnap, sizeof(micsnap)) == 0) {
1405 ai->micstats.rxMICPlummed++;
1411 if (ntohs(mic->typelen) == 0x888E)
1414 if (memcmp (mic->u.snap, micsnap, sizeof(micsnap)) != 0) {
1415 // Mic enabled but packet isn't Mic'd
1416 ai->micstats.rxMICPlummed++;
1420 micSEQ = ntohl(mic->seq); //store SEQ as CPU order
1422 //At this point we a have a mic'd packet and mic is enabled
1423 //Now do the mic error checking.
1425 //Receive seq must be odd
1426 if ( (micSEQ & 1) == 0 ) {
1427 ai->micstats.rxWrongSequence++;
1431 for (i = 0; i < NUM_MODULES; i++) {
1432 int mcast = eth->da[0] & 1;
1433 //Determine proper context
1434 context = mcast ? &ai->mod[i].mCtx : &ai->mod[i].uCtx;
1436 //Make sure context is valid
1437 if (!context->valid) {
1439 micError = NOMICPLUMMED;
1445 mic->typelen = htons(payLen + sizeof(MICBuffer) - 2);
1447 emmh32_init(&context->seed);
1448 emmh32_update(&context->seed, eth->da, ETH_ALEN*2);
1449 emmh32_update(&context->seed, (u8 *)&mic->typelen, sizeof(mic->typelen)+sizeof(mic->u.snap));
1450 emmh32_update(&context->seed, (u8 *)&mic->seq,sizeof(mic->seq));
1451 emmh32_update(&context->seed, eth->da + ETH_ALEN*2,payLen);
1453 emmh32_final(&context->seed, digest);
1455 if (memcmp(digest, &mic->mic, 4)) { //Make sure the mics match
1458 micError = INCORRECTMIC;
1462 //Check Sequence number if mics pass
1463 if (RxSeqValid(ai, context, mcast, micSEQ) == SUCCESS) {
1464 ai->micstats.rxSuccess++;
1468 micError = SEQUENCE;
1471 // Update statistics
1473 case NOMICPLUMMED: ai->micstats.rxMICPlummed++; break;
1474 case SEQUENCE: ai->micstats.rxWrongSequence++; break;
1475 case INCORRECTMIC: ai->micstats.rxIncorrectMIC++; break;
1482 /*===========================================================================
1483 * Description: Checks the Rx Seq number to make sure it is valid
1484 * and hasn't already been received
1486 * Inputs: miccntx - mic context to check seq against
1487 * micSeq - the Mic seq number
1489 * Returns: TRUE if valid otherwise FALSE.
1491 * Author: sbraneky (10/15/01)
1492 * Merciless hacks by rwilcher (1/14/02)
1493 *---------------------------------------------------------------------------
1496 static int RxSeqValid (struct airo_info *ai,miccntx *context,int mcast,u32 micSeq)
1500 //Allow for the ap being rebooted - if it is then use the next
1501 //sequence number of the current sequence number - might go backwards
1504 if (test_bit(FLAG_UPDATE_MULTI, &ai->flags)) {
1505 clear_bit (FLAG_UPDATE_MULTI, &ai->flags);
1506 context->window = (micSeq > 33) ? micSeq : 33;
1507 context->rx = 0; // Reset rx
1509 } else if (test_bit(FLAG_UPDATE_UNI, &ai->flags)) {
1510 clear_bit (FLAG_UPDATE_UNI, &ai->flags);
1511 context->window = (micSeq > 33) ? micSeq : 33; // Move window
1512 context->rx = 0; // Reset rx
1515 //Make sequence number relative to START of window
1516 seq = micSeq - (context->window - 33);
1518 //Too old of a SEQ number to check.
1523 //Window is infinite forward
1524 MoveWindow(context,micSeq);
1528 // We are in the window. Now check the context rx bit to see if it was already sent
1529 seq >>= 1; //divide by 2 because we only have odd numbers
1530 index = 1 << seq; //Get an index number
1532 if (!(context->rx & index)) {
1533 //micSEQ falls inside the window.
1534 //Add seqence number to the list of received numbers.
1535 context->rx |= index;
1537 MoveWindow(context,micSeq);
1544 static void MoveWindow(miccntx *context, u32 micSeq)
1548 //Move window if seq greater than the middle of the window
1549 if (micSeq > context->window) {
1550 shift = (micSeq - context->window) >> 1;
1554 context->rx >>= shift;
1558 context->window = micSeq; //Move window
1562 /*==============================================*/
1563 /*========== EMMH ROUTINES ====================*/
1564 /*==============================================*/
1566 /* mic accumulate */
1567 #define MIC_ACCUM(val) \
1568 context->accum += (u64)(val) * context->coeff[coeff_position++];
1570 static unsigned char aes_counter[16];
1572 /* expand the key to fill the MMH coefficient array */
1573 void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto_tfm *tfm)
1575 /* take the keying material, expand if necessary, truncate at 16-bytes */
1576 /* run through AES counter mode to generate context->coeff[] */
1580 u8 *cipher, plain[16];
1581 struct scatterlist sg[1];
1583 crypto_cipher_setkey(tfm, pkey, 16);
1585 for (i = 0; i < (sizeof(context->coeff)/sizeof(context->coeff[0])); ) {
1586 aes_counter[15] = (u8)(counter >> 0);
1587 aes_counter[14] = (u8)(counter >> 8);
1588 aes_counter[13] = (u8)(counter >> 16);
1589 aes_counter[12] = (u8)(counter >> 24);
1591 memcpy (plain, aes_counter, 16);
1592 sg[0].page = virt_to_page(plain);
1593 sg[0].offset = ((long) plain & ~PAGE_MASK);
1595 crypto_cipher_encrypt(tfm, sg, sg, 16);
1596 cipher = kmap(sg[0].page) + sg[0].offset;
1597 for (j=0; (j<16) && (i< (sizeof(context->coeff)/sizeof(context->coeff[0]))); ) {
1598 context->coeff[i++] = ntohl(*(u32 *)&cipher[j]);
1604 /* prepare for calculation of a new mic */
1605 void emmh32_init(emmh32_context *context)
1607 /* prepare for new mic calculation */
1609 context->position = 0;
1612 /* add some bytes to the mic calculation */
1613 void emmh32_update(emmh32_context *context, u8 *pOctets, int len)
1615 int coeff_position, byte_position;
1617 if (len == 0) return;
1619 coeff_position = context->position >> 2;
1621 /* deal with partial 32-bit word left over from last update */
1622 byte_position = context->position & 3;
1623 if (byte_position) {
1624 /* have a partial word in part to deal with */
1626 if (len == 0) return;
1627 context->part.d8[byte_position++] = *pOctets++;
1628 context->position++;
1630 } while (byte_position < 4);
1631 MIC_ACCUM(htonl(context->part.d32));
1634 /* deal with full 32-bit words */
1636 MIC_ACCUM(htonl(*(u32 *)pOctets));
1637 context->position += 4;
1642 /* deal with partial 32-bit word that will be left over from this update */
1645 context->part.d8[byte_position++] = *pOctets++;
1646 context->position++;
1651 /* mask used to zero empty bytes for final partial word */
1652 static u32 mask32[4] = { 0x00000000L, 0xFF000000L, 0xFFFF0000L, 0xFFFFFF00L };
1654 /* calculate the mic */
1655 void emmh32_final(emmh32_context *context, u8 digest[4])
1657 int coeff_position, byte_position;
1663 coeff_position = context->position >> 2;
1665 /* deal with partial 32-bit word left over from last update */
1666 byte_position = context->position & 3;
1667 if (byte_position) {
1668 /* have a partial word in part to deal with */
1669 val = htonl(context->part.d32);
1670 MIC_ACCUM(val & mask32[byte_position]); /* zero empty bytes */
1673 /* reduce the accumulated u64 to a 32-bit MIC */
1674 sum = context->accum;
1675 stmp = (sum & 0xffffffffLL) - ((sum >> 32) * 15);
1676 utmp = (stmp & 0xffffffffLL) - ((stmp >> 32) * 15);
1677 sum = utmp & 0xffffffffLL;
1678 if (utmp > 0x10000000fLL)
1682 digest[0] = (val>>24) & 0xFF;
1683 digest[1] = (val>>16) & 0xFF;
1684 digest[2] = (val>>8) & 0xFF;
1685 digest[3] = val & 0xFF;
1689 static int readBSSListRid(struct airo_info *ai, int first,
1696 if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN;
1697 memset(&cmd, 0, sizeof(cmd));
1698 cmd.cmd=CMD_LISTBSS;
1699 if (down_interruptible(&ai->sem))
1700 return -ERESTARTSYS;
1701 issuecommand(ai, &cmd, &rsp);
1703 /* Let the command take effect */
1708 rc = PC4500_readrid(ai, first ? RID_BSSLISTFIRST : RID_BSSLISTNEXT,
1709 list, sizeof(*list), 1);
1711 list->len = le16_to_cpu(list->len);
1712 list->index = le16_to_cpu(list->index);
1713 list->radioType = le16_to_cpu(list->radioType);
1714 list->cap = le16_to_cpu(list->cap);
1715 list->beaconInterval = le16_to_cpu(list->beaconInterval);
1716 list->fh.dwell = le16_to_cpu(list->fh.dwell);
1717 list->dsChannel = le16_to_cpu(list->dsChannel);
1718 list->atimWindow = le16_to_cpu(list->atimWindow);
1719 list->dBm = le16_to_cpu(list->dBm);
1723 static int readWepKeyRid(struct airo_info*ai, WepKeyRid *wkr, int temp, int lock) {
1724 int rc = PC4500_readrid(ai, temp ? RID_WEP_TEMP : RID_WEP_PERM,
1725 wkr, sizeof(*wkr), lock);
1727 wkr->len = le16_to_cpu(wkr->len);
1728 wkr->kindex = le16_to_cpu(wkr->kindex);
1729 wkr->klen = le16_to_cpu(wkr->klen);
1732 /* In the writeXXXRid routines we copy the rids so that we don't screwup
1733 * the originals when we endian them... */
1734 static int writeWepKeyRid(struct airo_info*ai, WepKeyRid *pwkr, int perm, int lock) {
1736 WepKeyRid wkr = *pwkr;
1738 wkr.len = cpu_to_le16(wkr.len);
1739 wkr.kindex = cpu_to_le16(wkr.kindex);
1740 wkr.klen = cpu_to_le16(wkr.klen);
1741 rc = PC4500_writerid(ai, RID_WEP_TEMP, &wkr, sizeof(wkr), lock);
1742 if (rc!=SUCCESS) printk(KERN_ERR "airo: WEP_TEMP set %x\n", rc);
1744 rc = PC4500_writerid(ai, RID_WEP_PERM, &wkr, sizeof(wkr), lock);
1746 printk(KERN_ERR "airo: WEP_PERM set %x\n", rc);
1752 static int readSsidRid(struct airo_info*ai, SsidRid *ssidr) {
1754 int rc = PC4500_readrid(ai, RID_SSID, ssidr, sizeof(*ssidr), 1);
1756 ssidr->len = le16_to_cpu(ssidr->len);
1757 for(i = 0; i < 3; i++) {
1758 ssidr->ssids[i].len = le16_to_cpu(ssidr->ssids[i].len);
1762 static int writeSsidRid(struct airo_info*ai, SsidRid *pssidr, int lock) {
1765 SsidRid ssidr = *pssidr;
1767 ssidr.len = cpu_to_le16(ssidr.len);
1768 for(i = 0; i < 3; i++) {
1769 ssidr.ssids[i].len = cpu_to_le16(ssidr.ssids[i].len);
1771 rc = PC4500_writerid(ai, RID_SSID, &ssidr, sizeof(ssidr), lock);
1774 static int readConfigRid(struct airo_info*ai, int lock) {
1782 rc = PC4500_readrid(ai, RID_ACTUALCONFIG, &cfg, sizeof(cfg), lock);
1786 for(s = &cfg.len; s <= &cfg.rtsThres; s++) *s = le16_to_cpu(*s);
1788 for(s = &cfg.shortRetryLimit; s <= &cfg.radioType; s++)
1789 *s = le16_to_cpu(*s);
1791 for(s = &cfg.txPower; s <= &cfg.radioSpecific; s++)
1792 *s = le16_to_cpu(*s);
1794 for(s = &cfg.arlThreshold; s <= &cfg._reserved4[0]; s++)
1795 *s = cpu_to_le16(*s);
1797 for(s = &cfg.autoWake; s <= &cfg.autoWake; s++)
1798 *s = cpu_to_le16(*s);
1803 static inline void checkThrottle(struct airo_info *ai) {
1805 /* Old hardware had a limit on encryption speed */
1806 if (ai->config.authType != AUTH_OPEN && maxencrypt) {
1807 for(i=0; i<8; i++) {
1808 if (ai->config.rates[i] > maxencrypt) {
1809 ai->config.rates[i] = 0;
1814 static int writeConfigRid(struct airo_info*ai, int lock) {
1818 if (!test_bit (FLAG_COMMIT, &ai->flags))
1821 clear_bit (FLAG_COMMIT, &ai->flags);
1822 clear_bit (FLAG_RESET, &ai->flags);
1826 if ((cfgr.opmode & 0xFF) == MODE_STA_IBSS)
1827 set_bit(FLAG_ADHOC, &ai->flags);
1829 clear_bit(FLAG_ADHOC, &ai->flags);
1831 for(s = &cfgr.len; s <= &cfgr.rtsThres; s++) *s = cpu_to_le16(*s);
1833 for(s = &cfgr.shortRetryLimit; s <= &cfgr.radioType; s++)
1834 *s = cpu_to_le16(*s);
1836 for(s = &cfgr.txPower; s <= &cfgr.radioSpecific; s++)
1837 *s = cpu_to_le16(*s);
1839 for(s = &cfgr.arlThreshold; s <= &cfgr._reserved4[0]; s++)
1840 *s = cpu_to_le16(*s);
1842 for(s = &cfgr.autoWake; s <= &cfgr.autoWake; s++)
1843 *s = cpu_to_le16(*s);
1845 return PC4500_writerid( ai, RID_CONFIG, &cfgr, sizeof(cfgr), lock);
1847 static int readStatusRid(struct airo_info*ai, StatusRid *statr, int lock) {
1848 int rc = PC4500_readrid(ai, RID_STATUS, statr, sizeof(*statr), lock);
1851 statr->len = le16_to_cpu(statr->len);
1852 for(s = &statr->mode; s <= &statr->SSIDlen; s++) *s = le16_to_cpu(*s);
1854 for(s = &statr->beaconPeriod; s <= &statr->shortPreamble; s++)
1855 *s = le16_to_cpu(*s);
1856 statr->load = le16_to_cpu(statr->load);
1857 statr->assocStatus = le16_to_cpu(statr->assocStatus);
1860 static int readAPListRid(struct airo_info*ai, APListRid *aplr) {
1861 int rc = PC4500_readrid(ai, RID_APLIST, aplr, sizeof(*aplr), 1);
1862 aplr->len = le16_to_cpu(aplr->len);
1865 static int writeAPListRid(struct airo_info*ai, APListRid *aplr, int lock) {
1867 aplr->len = cpu_to_le16(aplr->len);
1868 rc = PC4500_writerid(ai, RID_APLIST, aplr, sizeof(*aplr), lock);
1871 static int readCapabilityRid(struct airo_info*ai, CapabilityRid *capr, int lock) {
1872 int rc = PC4500_readrid(ai, RID_CAPABILITIES, capr, sizeof(*capr), lock);
1875 capr->len = le16_to_cpu(capr->len);
1876 capr->prodNum = le16_to_cpu(capr->prodNum);
1877 capr->radioType = le16_to_cpu(capr->radioType);
1878 capr->country = le16_to_cpu(capr->country);
1879 for(s = &capr->txPowerLevels[0]; s <= &capr->requiredHard; s++)
1880 *s = le16_to_cpu(*s);
1883 static int readStatsRid(struct airo_info*ai, StatsRid *sr, int rid, int lock) {
1884 int rc = PC4500_readrid(ai, rid, sr, sizeof(*sr), lock);
1887 sr->len = le16_to_cpu(sr->len);
1888 for(i = &sr->vals[0]; i <= &sr->vals[99]; i++) *i = le32_to_cpu(*i);
1892 static int airo_open(struct net_device *dev) {
1893 struct airo_info *info = dev->priv;
1896 if (test_bit(FLAG_FLASHING, &info->flags))
1899 /* Make sure the card is configured.
1900 * Wireless Extensions may postpone config changes until the card
1901 * is open (to pipeline changes and speed-up card setup). If
1902 * those changes are not yet commited, do it now - Jean II */
1903 if (test_bit (FLAG_COMMIT, &info->flags)) {
1904 disable_MAC(info, 1);
1905 writeConfigRid(info, 1);
1908 if (info->wifidev != dev) {
1909 /* Power on the MAC controller (which may have been disabled) */
1910 clear_bit(FLAG_RADIO_DOWN, &info->flags);
1911 enable_interrupts(info);
1913 enable_MAC(info, &rsp, 1);
1915 netif_start_queue(dev);
1919 static int mpi_start_xmit(struct sk_buff *skb, struct net_device *dev) {
1920 int npacks, pending;
1921 unsigned long flags;
1922 struct airo_info *ai = dev->priv;
1925 printk(KERN_ERR "airo: %s: skb==NULL\n",__FUNCTION__);
1928 npacks = skb_queue_len (&ai->txq);
1930 if (npacks >= MAXTXQ - 1) {
1931 netif_stop_queue (dev);
1932 if (npacks > MAXTXQ) {
1933 ai->stats.tx_fifo_errors++;
1936 skb_queue_tail (&ai->txq, skb);
1940 spin_lock_irqsave(&ai->aux_lock, flags);
1941 skb_queue_tail (&ai->txq, skb);
1942 pending = test_bit(FLAG_PENDING_XMIT, &ai->flags);
1943 spin_unlock_irqrestore(&ai->aux_lock,flags);
1944 netif_wake_queue (dev);
1947 set_bit(FLAG_PENDING_XMIT, &ai->flags);
1948 mpi_send_packet (dev);
1956 * Attempt to transmit a packet. Can be called from interrupt
1957 * or transmit . return number of packets we tried to send
1960 static int mpi_send_packet (struct net_device *dev)
1962 struct sk_buff *skb;
1963 unsigned char *buffer;
1964 s16 len, *payloadLen;
1965 struct airo_info *ai = dev->priv;
1968 /* get a packet to send */
1970 if ((skb = skb_dequeue(&ai->txq)) == 0) {
1972 "airo: %s: Dequeue'd zero in send_packet()\n",
1977 /* check min length*/
1978 len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
1981 ai->txfids[0].tx_desc.offset = 0;
1982 ai->txfids[0].tx_desc.valid = 1;
1983 ai->txfids[0].tx_desc.eoc = 1;
1984 ai->txfids[0].tx_desc.len =len+sizeof(WifiHdr);
1987 * Magic, the cards firmware needs a length count (2 bytes) in the host buffer
1988 * right after TXFID_HDR.The TXFID_HDR contains the status short so payloadlen
1989 * is immediatly after it. ------------------------------------------------
1990 * |TXFIDHDR+STATUS|PAYLOADLEN|802.3HDR|PACKETDATA|
1991 * ------------------------------------------------
1994 memcpy((char *)ai->txfids[0].virtual_host_addr,
1995 (char *)&wifictlhdr8023, sizeof(wifictlhdr8023));
1997 payloadLen = (s16 *)(ai->txfids[0].virtual_host_addr +
1998 sizeof(wifictlhdr8023));
1999 sendbuf = ai->txfids[0].virtual_host_addr +
2000 sizeof(wifictlhdr8023) + 2 ;
2003 * Firmware automaticly puts 802 header on so
2004 * we don't need to account for it in the length
2007 if (test_bit(FLAG_MIC_CAPABLE, &ai->flags) && ai->micstats.enabled &&
2008 (ntohs(((u16 *)buffer)[6]) != 0x888E)) {
2011 if (encapsulate(ai, (etherHead *)buffer, &pMic, len - sizeof(etherHead)) != SUCCESS)
2014 *payloadLen = cpu_to_le16(len-sizeof(etherHead)+sizeof(pMic));
2015 ai->txfids[0].tx_desc.len += sizeof(pMic);
2016 /* copy data into airo dma buffer */
2017 memcpy (sendbuf, buffer, sizeof(etherHead));
2018 buffer += sizeof(etherHead);
2019 sendbuf += sizeof(etherHead);
2020 memcpy (sendbuf, &pMic, sizeof(pMic));
2021 sendbuf += sizeof(pMic);
2022 memcpy (sendbuf, buffer, len - sizeof(etherHead));
2026 *payloadLen = cpu_to_le16(len - sizeof(etherHead));
2028 dev->trans_start = jiffies;
2030 /* copy data into airo dma buffer */
2031 memcpy(sendbuf, buffer, len);
2034 memcpy_toio(ai->txfids[0].card_ram_off,
2035 &ai->txfids[0].tx_desc, sizeof(TxFid));
2037 OUT4500(ai, EVACK, 8);
2039 dev_kfree_skb_any(skb);
2043 static void get_tx_error(struct airo_info *ai, u32 fid)
2048 status = ((WifiCtlHdr *)ai->txfids[0].virtual_host_addr)->ctlhdr.status;
2050 if (bap_setup(ai, ai->fids[fid] & 0xffff, 4, BAP0) != SUCCESS)
2052 bap_read(ai, &status, 2, BAP0);
2054 if (le16_to_cpu(status) & 2) /* Too many retries */
2055 ai->stats.tx_aborted_errors++;
2056 if (le16_to_cpu(status) & 4) /* Transmit lifetime exceeded */
2057 ai->stats.tx_heartbeat_errors++;
2058 if (le16_to_cpu(status) & 8) /* Aid fail */
2060 if (le16_to_cpu(status) & 0x10) /* MAC disabled */
2061 ai->stats.tx_carrier_errors++;
2062 if (le16_to_cpu(status) & 0x20) /* Association lost */
2064 /* We produce a TXDROP event only for retry or lifetime
2065 * exceeded, because that's the only status that really mean
2066 * that this particular node went away.
2067 * Other errors means that *we* screwed up. - Jean II */
2068 if ((le16_to_cpu(status) & 2) ||
2069 (le16_to_cpu(status) & 4)) {
2070 union iwreq_data wrqu;
2073 /* Faster to skip over useless data than to do
2074 * another bap_setup(). We are at offset 0x6 and
2075 * need to go to 0x18 and read 6 bytes - Jean II */
2076 bap_read(ai, (u16 *) junk, 0x18, BAP0);
2078 /* Copy 802.11 dest address.
2079 * We use the 802.11 header because the frame may
2080 * not be 802.3 or may be mangled...
2081 * In Ad-Hoc mode, it will be the node address.
2082 * In managed mode, it will be most likely the AP addr
2083 * User space will figure out how to convert it to
2084 * whatever it needs (IP address or else).
2086 memcpy(wrqu.addr.sa_data, junk + 0x12, ETH_ALEN);
2087 wrqu.addr.sa_family = ARPHRD_ETHER;
2089 /* Send event to user space */
2090 wireless_send_event(ai->dev, IWEVTXDROP, &wrqu, NULL);
2094 static void airo_end_xmit(struct net_device *dev) {
2097 struct airo_info *priv = dev->priv;
2098 struct sk_buff *skb = priv->xmit.skb;
2099 int fid = priv->xmit.fid;
2100 u32 *fids = priv->fids;
2102 clear_bit(JOB_XMIT, &priv->flags);
2103 clear_bit(FLAG_PENDING_XMIT, &priv->flags);
2104 status = transmit_802_3_packet (priv, fids[fid], skb->data);
2108 if ( status == SUCCESS ) {
2109 dev->trans_start = jiffies;
2110 for (; i < MAX_FIDS / 2 && (priv->fids[i] & 0xffff0000); i++);
2112 priv->fids[fid] &= 0xffff;
2113 priv->stats.tx_window_errors++;
2115 if (i < MAX_FIDS / 2)
2116 netif_wake_queue(dev);
2120 static int airo_start_xmit(struct sk_buff *skb, struct net_device *dev) {
2123 struct airo_info *priv = dev->priv;
2124 u32 *fids = priv->fids;
2126 if ( skb == NULL ) {
2127 printk( KERN_ERR "airo: skb == NULL!!!\n" );
2131 /* Find a vacant FID */
2132 for( i = 0; i < MAX_FIDS / 2 && (fids[i] & 0xffff0000); i++ );
2133 for( j = i + 1; j < MAX_FIDS / 2 && (fids[j] & 0xffff0000); j++ );
2135 if ( j >= MAX_FIDS / 2 ) {
2136 netif_stop_queue(dev);
2138 if (i == MAX_FIDS / 2) {
2139 priv->stats.tx_fifo_errors++;
2143 /* check min length*/
2144 len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
2145 /* Mark fid as used & save length for later */
2146 fids[i] |= (len << 16);
2147 priv->xmit.skb = skb;
2149 if (down_trylock(&priv->sem) != 0) {
2150 set_bit(FLAG_PENDING_XMIT, &priv->flags);
2151 netif_stop_queue(dev);
2152 set_bit(JOB_XMIT, &priv->flags);
2153 wake_up_interruptible(&priv->thr_wait);
2159 static void airo_end_xmit11(struct net_device *dev) {
2162 struct airo_info *priv = dev->priv;
2163 struct sk_buff *skb = priv->xmit11.skb;
2164 int fid = priv->xmit11.fid;
2165 u32 *fids = priv->fids;
2167 clear_bit(JOB_XMIT11, &priv->flags);
2168 clear_bit(FLAG_PENDING_XMIT11, &priv->flags);
2169 status = transmit_802_11_packet (priv, fids[fid], skb->data);
2173 if ( status == SUCCESS ) {
2174 dev->trans_start = jiffies;
2175 for (; i < MAX_FIDS && (priv->fids[i] & 0xffff0000); i++);
2177 priv->fids[fid] &= 0xffff;
2178 priv->stats.tx_window_errors++;
2181 netif_wake_queue(dev);
2185 static int airo_start_xmit11(struct sk_buff *skb, struct net_device *dev) {
2188 struct airo_info *priv = dev->priv;
2189 u32 *fids = priv->fids;
2191 if (test_bit(FLAG_MPI, &priv->flags)) {
2192 /* Not implemented yet for MPI350 */
2193 netif_stop_queue(dev);
2197 if ( skb == NULL ) {
2198 printk( KERN_ERR "airo: skb == NULL!!!\n" );
2202 /* Find a vacant FID */
2203 for( i = MAX_FIDS / 2; i < MAX_FIDS && (fids[i] & 0xffff0000); i++ );
2204 for( j = i + 1; j < MAX_FIDS && (fids[j] & 0xffff0000); j++ );
2206 if ( j >= MAX_FIDS ) {
2207 netif_stop_queue(dev);
2209 if (i == MAX_FIDS) {
2210 priv->stats.tx_fifo_errors++;
2214 /* check min length*/
2215 len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
2216 /* Mark fid as used & save length for later */
2217 fids[i] |= (len << 16);
2218 priv->xmit11.skb = skb;
2219 priv->xmit11.fid = i;
2220 if (down_trylock(&priv->sem) != 0) {
2221 set_bit(FLAG_PENDING_XMIT11, &priv->flags);
2222 netif_stop_queue(dev);
2223 set_bit(JOB_XMIT11, &priv->flags);
2224 wake_up_interruptible(&priv->thr_wait);
2226 airo_end_xmit11(dev);
2230 static void airo_read_stats(struct airo_info *ai) {
2232 u32 *vals = stats_rid.vals;
2234 clear_bit(JOB_STATS, &ai->flags);
2239 readStatsRid(ai, &stats_rid, RID_STATS, 0);
2242 ai->stats.rx_packets = vals[43] + vals[44] + vals[45];
2243 ai->stats.tx_packets = vals[39] + vals[40] + vals[41];
2244 ai->stats.rx_bytes = vals[92];
2245 ai->stats.tx_bytes = vals[91];
2246 ai->stats.rx_errors = vals[0] + vals[2] + vals[3] + vals[4];
2247 ai->stats.tx_errors = vals[42] + ai->stats.tx_fifo_errors;
2248 ai->stats.multicast = vals[43];
2249 ai->stats.collisions = vals[89];
2251 /* detailed rx_errors: */
2252 ai->stats.rx_length_errors = vals[3];
2253 ai->stats.rx_crc_errors = vals[4];
2254 ai->stats.rx_frame_errors = vals[2];
2255 ai->stats.rx_fifo_errors = vals[0];
2258 struct net_device_stats *airo_get_stats(struct net_device *dev)
2260 struct airo_info *local = dev->priv;
2262 if (!test_bit(JOB_STATS, &local->flags)) {
2263 /* Get stats out of the card if available */
2264 if (down_trylock(&local->sem) != 0) {
2265 set_bit(JOB_STATS, &local->flags);
2266 wake_up_interruptible(&local->thr_wait);
2268 airo_read_stats(local);
2271 return &local->stats;
2274 static void airo_set_promisc(struct airo_info *ai) {
2278 memset(&cmd, 0, sizeof(cmd));
2279 cmd.cmd=CMD_SETMODE;
2280 clear_bit(JOB_PROMISC, &ai->flags);
2281 cmd.parm0=(ai->flags&IFF_PROMISC) ? PROMISC : NOPROMISC;
2282 issuecommand(ai, &cmd, &rsp);
2286 static void airo_set_multicast_list(struct net_device *dev) {
2287 struct airo_info *ai = dev->priv;
2289 if ((dev->flags ^ ai->flags) & IFF_PROMISC) {
2290 change_bit(FLAG_PROMISC, &ai->flags);
2291 if (down_trylock(&ai->sem) != 0) {
2292 set_bit(JOB_PROMISC, &ai->flags);
2293 wake_up_interruptible(&ai->thr_wait);
2295 airo_set_promisc(ai);
2298 if ((dev->flags&IFF_ALLMULTI)||dev->mc_count>0) {
2299 /* Turn on multicast. (Should be already setup...) */
2303 static int airo_set_mac_address(struct net_device *dev, void *p)
2305 struct airo_info *ai = dev->priv;
2306 struct sockaddr *addr = p;
2309 readConfigRid(ai, 1);
2310 memcpy (ai->config.macAddr, addr->sa_data, dev->addr_len);
2311 set_bit (FLAG_COMMIT, &ai->flags);
2313 writeConfigRid (ai, 1);
2314 enable_MAC(ai, &rsp, 1);
2315 memcpy (ai->dev->dev_addr, addr->sa_data, dev->addr_len);
2317 memcpy (ai->wifidev->dev_addr, addr->sa_data, dev->addr_len);
2321 static int airo_change_mtu(struct net_device *dev, int new_mtu)
2323 if ((new_mtu < 68) || (new_mtu > 2400))
2330 static int airo_close(struct net_device *dev) {
2331 struct airo_info *ai = dev->priv;
2333 netif_stop_queue(dev);
2335 if (ai->wifidev != dev) {
2336 #ifdef POWER_ON_DOWN
2337 /* Shut power to the card. The idea is that the user can save
2338 * power when he doesn't need the card with "ifconfig down".
2339 * That's the method that is most friendly towards the network
2340 * stack (i.e. the network stack won't try to broadcast
2341 * anything on the interface and routes are gone. Jean II */
2342 set_bit(FLAG_RADIO_DOWN, &ai->flags);
2345 disable_interrupts( ai );
2350 static void del_airo_dev( struct net_device *dev );
2352 void stop_airo_card( struct net_device *dev, int freeres )
2354 struct airo_info *ai = dev->priv;
2356 set_bit(FLAG_RADIO_DOWN, &ai->flags);
2358 disable_interrupts(ai);
2359 free_irq( dev->irq, dev );
2360 takedown_proc_entry( dev, ai );
2361 if (test_bit(FLAG_REGISTERED, &ai->flags)) {
2362 unregister_netdev( dev );
2364 unregister_netdev(ai->wifidev);
2365 free_netdev(ai->wifidev);
2368 clear_bit(FLAG_REGISTERED, &ai->flags);
2370 set_bit(JOB_DIE, &ai->flags);
2371 kill_proc(ai->thr_pid, SIGTERM, 1);
2372 wait_for_completion(&ai->thr_exited);
2375 * Clean out tx queue
2377 if (test_bit(FLAG_MPI, &ai->flags) && skb_queue_len (&ai->txq) > 0) {
2378 struct sk_buff *skb = NULL;
2379 for (;(skb = skb_dequeue(&ai->txq));)
2392 /* PCMCIA frees this stuff, so only for PCI and ISA */
2393 release_region( dev->base_addr, 64 );
2394 if (test_bit(FLAG_MPI, &ai->flags)) {
2396 mpi_unmap_card(ai->pci);
2398 iounmap(ai->pcimem);
2400 iounmap(ai->pciaux);
2401 pci_free_consistent(ai->pci, PCI_SHARED_LEN,
2402 ai->shared, ai->shared_dma);
2407 crypto_free_tfm(ai->tfm);
2409 del_airo_dev( dev );
2413 EXPORT_SYMBOL(stop_airo_card);
2415 static int add_airo_dev( struct net_device *dev );
2417 int wll_header_parse(struct sk_buff *skb, unsigned char *haddr)
2419 memcpy(haddr, skb->mac.raw + 10, ETH_ALEN);
2423 static void mpi_unmap_card(struct pci_dev *pci)
2425 unsigned long mem_start = pci_resource_start(pci, 1);
2426 unsigned long mem_len = pci_resource_len(pci, 1);
2427 unsigned long aux_start = pci_resource_start(pci, 2);
2428 unsigned long aux_len = AUXMEMSIZE;
2430 release_mem_region(aux_start, aux_len);
2431 release_mem_region(mem_start, mem_len);
2434 /*************************************************************
2435 * This routine assumes that descriptors have been setup .
2436 * Run at insmod time or after reset when the decriptors
2437 * have been initialized . Returns 0 if all is well nz
2438 * otherwise . Does not allocate memory but sets up card
2439 * using previously allocated descriptors.
2441 static int mpi_init_descriptors (struct airo_info *ai)
2448 /* Alloc card RX descriptors */
2449 netif_stop_queue(ai->dev);
2451 memset(&rsp,0,sizeof(rsp));
2452 memset(&cmd,0,sizeof(cmd));
2454 cmd.cmd = CMD_ALLOCATEAUX;
2456 cmd.parm1 = (ai->rxfids[0].card_ram_off - ai->pciaux);
2457 cmd.parm2 = MPI_MAX_FIDS;
2458 rc=issuecommand(ai, &cmd, &rsp);
2459 if (rc != SUCCESS) {
2460 printk(KERN_ERR "airo: Couldn't allocate RX FID\n");
2464 for (i=0; i<MPI_MAX_FIDS; i++) {
2465 memcpy_toio(ai->rxfids[i].card_ram_off,
2466 &ai->rxfids[i].rx_desc, sizeof(RxFid));
2469 /* Alloc card TX descriptors */
2471 memset(&rsp,0,sizeof(rsp));
2472 memset(&cmd,0,sizeof(cmd));
2474 cmd.cmd = CMD_ALLOCATEAUX;
2476 cmd.parm1 = (ai->txfids[0].card_ram_off - ai->pciaux);
2477 cmd.parm2 = MPI_MAX_FIDS;
2479 for (i=0; i<MPI_MAX_FIDS; i++) {
2480 ai->txfids[i].tx_desc.valid = 1;
2481 memcpy_toio(ai->txfids[i].card_ram_off,
2482 &ai->txfids[i].tx_desc, sizeof(TxFid));
2484 ai->txfids[i-1].tx_desc.eoc = 1; /* Last descriptor has EOC set */
2486 rc=issuecommand(ai, &cmd, &rsp);
2487 if (rc != SUCCESS) {
2488 printk(KERN_ERR "airo: Couldn't allocate TX FID\n");
2492 /* Alloc card Rid descriptor */
2493 memset(&rsp,0,sizeof(rsp));
2494 memset(&cmd,0,sizeof(cmd));
2496 cmd.cmd = CMD_ALLOCATEAUX;
2498 cmd.parm1 = (ai->config_desc.card_ram_off - ai->pciaux);
2499 cmd.parm2 = 1; /* Magic number... */
2500 rc=issuecommand(ai, &cmd, &rsp);
2501 if (rc != SUCCESS) {
2502 printk(KERN_ERR "airo: Couldn't allocate RID\n");
2506 memcpy_toio(ai->config_desc.card_ram_off,
2507 &ai->config_desc.rid_desc, sizeof(Rid));
2513 * We are setting up three things here:
2514 * 1) Map AUX memory for descriptors: Rid, TxFid, or RxFid.
2515 * 2) Map PCI memory for issueing commands.
2516 * 3) Allocate memory (shared) to send and receive ethernet frames.
2518 static int mpi_map_card(struct airo_info *ai, struct pci_dev *pci,
2521 unsigned long mem_start, mem_len, aux_start, aux_len;
2524 unsigned char *busaddroff,*vpackoff;
2525 unsigned char __iomem *pciaddroff;
2527 mem_start = pci_resource_start(pci, 1);
2528 mem_len = pci_resource_len(pci, 1);
2529 aux_start = pci_resource_start(pci, 2);
2530 aux_len = AUXMEMSIZE;
2532 if (!request_mem_region(mem_start, mem_len, name)) {
2533 printk(KERN_ERR "airo: Couldn't get region %x[%x] for %s\n",
2534 (int)mem_start, (int)mem_len, name);
2537 if (!request_mem_region(aux_start, aux_len, name)) {
2538 printk(KERN_ERR "airo: Couldn't get region %x[%x] for %s\n",
2539 (int)aux_start, (int)aux_len, name);
2543 ai->pcimem = ioremap(mem_start, mem_len);
2545 printk(KERN_ERR "airo: Couldn't map region %x[%x] for %s\n",
2546 (int)mem_start, (int)mem_len, name);
2549 ai->pciaux = ioremap(aux_start, aux_len);
2551 printk(KERN_ERR "airo: Couldn't map region %x[%x] for %s\n",
2552 (int)aux_start, (int)aux_len, name);
2556 /* Reserve PKTSIZE for each fid and 2K for the Rids */
2557 ai->shared = pci_alloc_consistent(pci, PCI_SHARED_LEN, &ai->shared_dma);
2559 printk(KERN_ERR "airo: Couldn't alloc_consistent %d\n",
2565 * Setup descriptor RX, TX, CONFIG
2567 busaddroff = (unsigned char *)ai->shared_dma;
2568 pciaddroff = ai->pciaux + AUX_OFFSET;
2569 vpackoff = ai->shared;
2571 /* RX descriptor setup */
2572 for(i = 0; i < MPI_MAX_FIDS; i++) {
2573 ai->rxfids[i].pending = 0;
2574 ai->rxfids[i].card_ram_off = pciaddroff;
2575 ai->rxfids[i].virtual_host_addr = vpackoff;
2576 ai->rxfids[i].rx_desc.host_addr = (dma_addr_t) busaddroff;
2577 ai->rxfids[i].rx_desc.valid = 1;
2578 ai->rxfids[i].rx_desc.len = PKTSIZE;
2579 ai->rxfids[i].rx_desc.rdy = 0;
2581 pciaddroff += sizeof(RxFid);
2582 busaddroff += PKTSIZE;
2583 vpackoff += PKTSIZE;
2586 /* TX descriptor setup */
2587 for(i = 0; i < MPI_MAX_FIDS; i++) {
2588 ai->txfids[i].card_ram_off = pciaddroff;
2589 ai->txfids[i].virtual_host_addr = vpackoff;
2590 ai->txfids[i].tx_desc.valid = 1;
2591 ai->txfids[i].tx_desc.host_addr = (dma_addr_t) busaddroff;
2592 memcpy(ai->txfids[i].virtual_host_addr,
2593 &wifictlhdr8023, sizeof(wifictlhdr8023));
2595 pciaddroff += sizeof(TxFid);
2596 busaddroff += PKTSIZE;
2597 vpackoff += PKTSIZE;
2599 ai->txfids[i-1].tx_desc.eoc = 1; /* Last descriptor has EOC set */
2601 /* Rid descriptor setup */
2602 ai->config_desc.card_ram_off = pciaddroff;
2603 ai->config_desc.virtual_host_addr = vpackoff;
2604 ai->config_desc.rid_desc.host_addr = (dma_addr_t) busaddroff;
2605 ai->ridbus = (dma_addr_t)busaddroff;
2606 ai->config_desc.rid_desc.rid = 0;
2607 ai->config_desc.rid_desc.len = RIDSIZE;
2608 ai->config_desc.rid_desc.valid = 1;
2609 pciaddroff += sizeof(Rid);
2610 busaddroff += RIDSIZE;
2611 vpackoff += RIDSIZE;
2613 /* Tell card about descriptors */
2614 if (mpi_init_descriptors (ai) != SUCCESS)
2619 pci_free_consistent(pci, PCI_SHARED_LEN, ai->shared, ai->shared_dma);
2621 iounmap(ai->pciaux);
2623 iounmap(ai->pcimem);
2625 release_mem_region(aux_start, aux_len);
2627 release_mem_region(mem_start, mem_len);
2632 static void wifi_setup(struct net_device *dev)
2634 dev->hard_header = NULL;
2635 dev->rebuild_header = NULL;
2636 dev->hard_header_cache = NULL;
2637 dev->header_cache_update= NULL;
2639 dev->hard_header_parse = wll_header_parse;
2640 dev->hard_start_xmit = &airo_start_xmit11;
2641 dev->get_stats = &airo_get_stats;
2642 dev->set_mac_address = &airo_set_mac_address;
2643 dev->do_ioctl = &airo_ioctl;
2645 dev->wireless_handlers = &airo_handler_def;
2646 #endif /* WIRELESS_EXT */
2647 dev->change_mtu = &airo_change_mtu;
2648 dev->open = &airo_open;
2649 dev->stop = &airo_close;
2651 dev->type = ARPHRD_IEEE80211;
2652 dev->hard_header_len = ETH_HLEN;
2654 dev->addr_len = ETH_ALEN;
2655 dev->tx_queue_len = 100;
2657 memset(dev->broadcast,0xFF, ETH_ALEN);
2659 dev->flags = IFF_BROADCAST|IFF_MULTICAST;
2662 static struct net_device *init_wifidev(struct airo_info *ai,
2663 struct net_device *ethdev)
2666 struct net_device *dev = alloc_netdev(0, "wifi%d", wifi_setup);
2669 dev->priv = ethdev->priv;
2670 dev->irq = ethdev->irq;
2671 dev->base_addr = ethdev->base_addr;
2673 dev->wireless_data = ethdev->wireless_data;
2674 #endif /* WIRELESS_EXT */
2675 memcpy(dev->dev_addr, ethdev->dev_addr, dev->addr_len);
2676 err = register_netdev(dev);
2684 int reset_card( struct net_device *dev , int lock) {
2685 struct airo_info *ai = dev->priv;
2687 if (lock && down_interruptible(&ai->sem))
2690 OUT4500(ai,COMMAND,CMD_SOFTRESET);
2699 struct net_device *_init_airo_card( unsigned short irq, int port,
2700 int is_pcmcia, struct pci_dev *pci,
2701 struct device *dmdev )
2703 struct net_device *dev;
2704 struct airo_info *ai;
2707 /* Create the network device object. */
2708 dev = alloc_etherdev(sizeof(*ai));
2710 printk(KERN_ERR "airo: Couldn't alloc_etherdev\n");
2713 if (dev_alloc_name(dev, dev->name) < 0) {
2714 printk(KERN_ERR "airo: Couldn't get name!\n");
2721 if (pci && (pci->device == 0x5000 || pci->device == 0xa504)) {
2722 printk(KERN_DEBUG "airo: Found an MPI350 card\n");
2723 set_bit(FLAG_MPI, &ai->flags);
2726 spin_lock_init(&ai->aux_lock);
2727 sema_init(&ai->sem, 1);
2730 init_waitqueue_head (&ai->thr_wait);
2731 init_completion (&ai->thr_exited);
2732 ai->thr_pid = kernel_thread(airo_thread, dev, CLONE_FS | CLONE_FILES);
2733 if (ai->thr_pid < 0)
2738 rc = add_airo_dev( dev );
2742 /* The Airo-specific entries in the device structure. */
2743 if (test_bit(FLAG_MPI,&ai->flags)) {
2744 skb_queue_head_init (&ai->txq);
2745 dev->hard_start_xmit = &mpi_start_xmit;
2747 dev->hard_start_xmit = &airo_start_xmit;
2748 dev->get_stats = &airo_get_stats;
2749 dev->set_multicast_list = &airo_set_multicast_list;
2750 dev->set_mac_address = &airo_set_mac_address;
2751 dev->do_ioctl = &airo_ioctl;
2753 dev->wireless_handlers = &airo_handler_def;
2754 ai->wireless_data.spy_data = &ai->spy_data;
2755 dev->wireless_data = &ai->wireless_data;
2756 #endif /* WIRELESS_EXT */
2757 dev->change_mtu = &airo_change_mtu;
2758 dev->open = &airo_open;
2759 dev->stop = &airo_close;
2761 dev->base_addr = port;
2763 SET_NETDEV_DEV(dev, dmdev);
2766 if (test_bit(FLAG_MPI,&ai->flags))
2767 reset_card (dev, 1);
2769 rc = request_irq( dev->irq, airo_interrupt, SA_SHIRQ, dev->name, dev );
2771 printk(KERN_ERR "airo: register interrupt %d failed, rc %d\n", irq, rc );
2772 goto err_out_unlink;
2775 if (!request_region( dev->base_addr, 64, dev->name )) {
2777 printk(KERN_ERR "airo: Couldn't request region\n");
2782 if (test_bit(FLAG_MPI,&ai->flags)) {
2783 if (mpi_map_card(ai, pci, dev->name)) {
2784 printk(KERN_ERR "airo: Could not map memory\n");
2790 if ( setup_card( ai, dev->dev_addr, 1 ) != SUCCESS ) {
2791 printk( KERN_ERR "airo: MAC could not be enabled\n" );
2795 } else if (!test_bit(FLAG_MPI,&ai->flags)) {
2796 ai->bap_read = fast_bap_read;
2797 set_bit(FLAG_FLASHING, &ai->flags);
2800 rc = register_netdev(dev);
2802 printk(KERN_ERR "airo: Couldn't register_netdev\n");
2805 ai->wifidev = init_wifidev(ai, dev);
2807 set_bit(FLAG_REGISTERED,&ai->flags);
2808 printk( KERN_INFO "airo: MAC enabled %s %x:%x:%x:%x:%x:%x\n",
2810 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
2811 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5] );
2813 /* Allocate the transmit buffers */
2814 if (probe && !test_bit(FLAG_MPI,&ai->flags))
2815 for( i = 0; i < MAX_FIDS; i++ )
2816 ai->fids[i] = transmit_allocate(ai,2312,i>=MAX_FIDS/2);
2818 setup_proc_entry( dev, dev->priv ); /* XXX check for failure */
2819 netif_start_queue(dev);
2820 SET_MODULE_OWNER(dev);
2824 if (test_bit(FLAG_MPI,&ai->flags) && pci) {
2825 pci_free_consistent(pci, PCI_SHARED_LEN, ai->shared, ai->shared_dma);
2826 iounmap(ai->pciaux);
2827 iounmap(ai->pcimem);
2828 mpi_unmap_card(ai->pci);
2832 release_region( dev->base_addr, 64 );
2834 free_irq(dev->irq, dev);
2838 set_bit(JOB_DIE, &ai->flags);
2839 kill_proc(ai->thr_pid, SIGTERM, 1);
2840 wait_for_completion(&ai->thr_exited);
2846 struct net_device *init_airo_card( unsigned short irq, int port, int is_pcmcia,
2847 struct device *dmdev)
2849 return _init_airo_card ( irq, port, is_pcmcia, NULL, dmdev);
2852 EXPORT_SYMBOL(init_airo_card);
2854 static int waitbusy (struct airo_info *ai) {
2856 while ((IN4500 (ai, COMMAND) & COMMAND_BUSY) & (delay < 10000)) {
2858 if ((++delay % 20) == 0)
2859 OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
2861 return delay < 10000;
2864 int reset_airo_card( struct net_device *dev )
2867 struct airo_info *ai = dev->priv;
2869 if (reset_card (dev, 1))
2872 if ( setup_card(ai, dev->dev_addr, 1 ) != SUCCESS ) {
2873 printk( KERN_ERR "airo: MAC could not be enabled\n" );
2876 printk( KERN_INFO "airo: MAC enabled %s %x:%x:%x:%x:%x:%x\n", dev->name,
2877 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
2878 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
2879 /* Allocate the transmit buffers if needed */
2880 if (!test_bit(FLAG_MPI,&ai->flags))
2881 for( i = 0; i < MAX_FIDS; i++ )
2882 ai->fids[i] = transmit_allocate (ai,2312,i>=MAX_FIDS/2);
2884 enable_interrupts( ai );
2885 netif_wake_queue(dev);
2889 EXPORT_SYMBOL(reset_airo_card);
2891 static void airo_send_event(struct net_device *dev) {
2892 struct airo_info *ai = dev->priv;
2893 union iwreq_data wrqu;
2894 StatusRid status_rid;
2896 clear_bit(JOB_EVENT, &ai->flags);
2897 PC4500_readrid(ai, RID_STATUS, &status_rid, sizeof(status_rid), 0);
2899 wrqu.data.length = 0;
2900 wrqu.data.flags = 0;
2901 memcpy(wrqu.ap_addr.sa_data, status_rid.bssid[0], ETH_ALEN);
2902 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
2904 /* Send event to user space */
2905 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
2908 static int airo_thread(void *data) {
2909 struct net_device *dev = data;
2910 struct airo_info *ai = dev->priv;
2913 daemonize("%s", dev->name);
2914 allow_signal(SIGTERM);
2917 if (signal_pending(current))
2918 flush_signals(current);
2920 /* make swsusp happy with our thread */
2923 if (test_bit(JOB_DIE, &ai->flags))
2926 if (ai->flags & JOB_MASK) {
2927 locked = down_interruptible(&ai->sem);
2931 init_waitqueue_entry(&wait, current);
2932 add_wait_queue(&ai->thr_wait, &wait);
2934 set_current_state(TASK_INTERRUPTIBLE);
2935 if (ai->flags & JOB_MASK)
2938 if (time_after_eq(jiffies,ai->expires)){
2939 set_bit(JOB_AUTOWEP,&ai->flags);
2942 if (!signal_pending(current)) {
2943 schedule_timeout(ai->expires - jiffies);
2946 } else if (!signal_pending(current)) {
2952 current->state = TASK_RUNNING;
2953 remove_wait_queue(&ai->thr_wait, &wait);
2960 if (test_bit(JOB_DIE, &ai->flags)) {
2965 if (ai->power || test_bit(FLAG_FLASHING, &ai->flags)) {
2970 if (test_bit(JOB_XMIT, &ai->flags))
2972 else if (test_bit(JOB_XMIT11, &ai->flags))
2973 airo_end_xmit11(dev);
2974 else if (test_bit(JOB_STATS, &ai->flags))
2975 airo_read_stats(ai);
2976 else if (test_bit(JOB_WSTATS, &ai->flags))
2977 airo_read_wireless_stats(ai);
2978 else if (test_bit(JOB_PROMISC, &ai->flags))
2979 airo_set_promisc(ai);
2981 else if (test_bit(JOB_MIC, &ai->flags))
2984 else if (test_bit(JOB_EVENT, &ai->flags))
2985 airo_send_event(dev);
2986 else if (test_bit(JOB_AUTOWEP, &ai->flags))
2989 complete_and_exit (&ai->thr_exited, 0);
2992 static irqreturn_t airo_interrupt ( int irq, void* dev_id, struct pt_regs *regs) {
2993 struct net_device *dev = (struct net_device *)dev_id;
2996 struct airo_info *apriv = dev->priv;
2997 u16 savedInterrupts = 0;
3000 if (!netif_device_present(dev))
3004 status = IN4500( apriv, EVSTAT );
3005 if ( !(status & STATUS_INTS) || status == 0xffff ) break;
3009 if ( status & EV_AWAKE ) {
3010 OUT4500( apriv, EVACK, EV_AWAKE );
3011 OUT4500( apriv, EVACK, EV_AWAKE );
3014 if (!savedInterrupts) {
3015 savedInterrupts = IN4500( apriv, EVINTEN );
3016 OUT4500( apriv, EVINTEN, 0 );
3019 if ( status & EV_MIC ) {
3020 OUT4500( apriv, EVACK, EV_MIC );
3022 if (test_bit(FLAG_MIC_CAPABLE, &apriv->flags)) {
3023 set_bit(JOB_MIC, &apriv->flags);
3024 wake_up_interruptible(&apriv->thr_wait);
3028 if ( status & EV_LINK ) {
3029 union iwreq_data wrqu;
3030 /* The link status has changed, if you want to put a
3031 monitor hook in, do it here. (Remember that
3032 interrupts are still disabled!)
3034 u16 newStatus = IN4500(apriv, LINKSTAT);
3035 OUT4500( apriv, EVACK, EV_LINK);
3036 /* Here is what newStatus means: */
3037 #define NOBEACON 0x8000 /* Loss of sync - missed beacons */
3038 #define MAXRETRIES 0x8001 /* Loss of sync - max retries */
3039 #define MAXARL 0x8002 /* Loss of sync - average retry level exceeded*/
3040 #define FORCELOSS 0x8003 /* Loss of sync - host request */
3041 #define TSFSYNC 0x8004 /* Loss of sync - TSF synchronization */
3042 #define DEAUTH 0x8100 /* Deauthentication (low byte is reason code) */
3043 #define DISASS 0x8200 /* Disassociation (low byte is reason code) */
3044 #define ASSFAIL 0x8400 /* Association failure (low byte is reason
3046 #define AUTHFAIL 0x0300 /* Authentication failure (low byte is reason
3048 #define ASSOCIATED 0x0400 /* Assocatied */
3049 #define RC_RESERVED 0 /* Reserved return code */
3050 #define RC_NOREASON 1 /* Unspecified reason */
3051 #define RC_AUTHINV 2 /* Previous authentication invalid */
3052 #define RC_DEAUTH 3 /* Deauthenticated because sending station is
3054 #define RC_NOACT 4 /* Disassociated due to inactivity */
3055 #define RC_MAXLOAD 5 /* Disassociated because AP is unable to handle
3056 all currently associated stations */
3057 #define RC_BADCLASS2 6 /* Class 2 frame received from
3058 non-Authenticated station */
3059 #define RC_BADCLASS3 7 /* Class 3 frame received from
3060 non-Associated station */
3061 #define RC_STATLEAVE 8 /* Disassociated because sending station is
3063 #define RC_NOAUTH 9 /* Station requesting (Re)Association is not
3064 Authenticated with the responding station */
3065 if (newStatus != ASSOCIATED) {
3066 if (auto_wep && !apriv->expires) {
3067 apriv->expires = RUN_AT(3*HZ);
3068 wake_up_interruptible(&apriv->thr_wait);
3071 struct task_struct *task = apriv->task;
3075 wake_up_process (task);
3076 set_bit(FLAG_UPDATE_UNI, &apriv->flags);
3077 set_bit(FLAG_UPDATE_MULTI, &apriv->flags);
3079 /* Question : is ASSOCIATED the only status
3080 * that is valid ? We want to catch handover
3081 * and reassociations as valid status
3083 if(newStatus == ASSOCIATED) {
3084 if (apriv->scan_timestamp) {
3085 /* Send an empty event to user space.
3086 * We don't send the received data on
3087 * the event because it would require
3088 * us to do complex transcoding, and
3089 * we want to minimise the work done in
3090 * the irq handler. Use a request to
3091 * extract the data - Jean II */
3092 wrqu.data.length = 0;
3093 wrqu.data.flags = 0;
3094 wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
3095 apriv->scan_timestamp = 0;
3097 if (down_trylock(&apriv->sem) != 0) {
3098 set_bit(JOB_EVENT, &apriv->flags);
3099 wake_up_interruptible(&apriv->thr_wait);
3101 airo_send_event(dev);
3103 memset(wrqu.ap_addr.sa_data, '\0', ETH_ALEN);
3104 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3106 /* Send event to user space */
3107 wireless_send_event(dev, SIOCGIWAP, &wrqu,NULL);
3111 /* Check to see if there is something to receive */
3112 if ( status & EV_RX ) {
3113 struct sk_buff *skb = NULL;
3114 u16 fc, len, hdrlen = 0;
3128 if (test_bit(FLAG_MPI,&apriv->flags)) {
3129 if (test_bit(FLAG_802_11, &apriv->flags))
3130 mpi_receive_802_11(apriv);
3132 mpi_receive_802_3(apriv);
3133 OUT4500(apriv, EVACK, EV_RX);
3137 fid = IN4500( apriv, RXFID );
3139 /* Get the packet length */
3140 if (test_bit(FLAG_802_11, &apriv->flags)) {
3141 bap_setup (apriv, fid, 4, BAP0);
3142 bap_read (apriv, (u16*)&hdr, sizeof(hdr), BAP0);
3143 /* Bad CRC. Ignore packet */
3144 if (le16_to_cpu(hdr.status) & 2)
3146 if (apriv->wifidev == NULL)
3149 bap_setup (apriv, fid, 0x36, BAP0);
3150 bap_read (apriv, (u16*)&hdr.len, 2, BAP0);
3152 len = le16_to_cpu(hdr.len);
3155 printk( KERN_ERR "airo: Bad size %d\n", len );
3161 if (test_bit(FLAG_802_11, &apriv->flags)) {
3162 bap_read (apriv, (u16*)&fc, sizeof(fc), BAP0);
3163 fc = le16_to_cpu(fc);
3166 if ((fc & 0xe0) == 0xc0)
3172 if ((fc&0x300)==0x300){
3180 hdrlen = ETH_ALEN * 2;
3182 skb = dev_alloc_skb( len + hdrlen + 2 + 2 );
3184 apriv->stats.rx_dropped++;
3187 skb_reserve(skb, 2); /* This way the IP header is aligned */
3188 buffer = (u16*)skb_put (skb, len + hdrlen);
3189 if (test_bit(FLAG_802_11, &apriv->flags)) {
3191 bap_read (apriv, buffer + 1, hdrlen - 2, BAP0);
3193 bap_read (apriv, tmpbuf, 6, BAP0);
3195 bap_read (apriv, &gap, sizeof(gap), BAP0);
3196 gap = le16_to_cpu(gap);
3199 bap_read (apriv, tmpbuf, gap, BAP0);
3201 printk(KERN_ERR "airo: gaplen too big. Problems will follow...\n");
3203 bap_read (apriv, buffer + hdrlen/2, len, BAP0);
3208 bap_read (apriv, buffer, ETH_ALEN*2, BAP0);
3210 if (apriv->micstats.enabled) {
3211 bap_read (apriv,(u16*)&micbuf,sizeof(micbuf),BAP0);
3212 if (ntohs(micbuf.typelen) > 0x05DC)
3213 bap_setup (apriv, fid, 0x44, BAP0);
3215 if (len <= sizeof(micbuf))
3218 len -= sizeof(micbuf);
3219 skb_trim (skb, len + hdrlen);
3223 bap_read(apriv,buffer+ETH_ALEN,len,BAP0);
3225 if (decapsulate(apriv,&micbuf,(etherHead*)buffer,len)) {
3227 dev_kfree_skb_irq (skb);
3232 OUT4500( apriv, EVACK, EV_RX);
3237 if (apriv->spy_data.spy_number > 0) {
3239 struct iw_quality wstats;
3240 /* Prepare spy data : addr + qual */
3241 if (!test_bit(FLAG_802_11, &apriv->flags)) {
3242 sa = (char*)buffer + 6;
3243 bap_setup (apriv, fid, 8, BAP0);
3244 bap_read (apriv, (u16*)hdr.rssi, 2, BAP0);
3246 sa = (char*)buffer + 10;
3247 wstats.qual = hdr.rssi[0];
3249 wstats.level = 0x100 - apriv->rssi[hdr.rssi[1]].rssidBm;
3251 wstats.level = (hdr.rssi[1] + 321) / 2;
3252 wstats.noise = apriv->wstats.qual.noise;
3253 wstats.updated = IW_QUAL_LEVEL_UPDATED
3254 | IW_QUAL_QUAL_UPDATED
3255 | IW_QUAL_NOISE_UPDATED;
3256 /* Update spy records */
3257 wireless_spy_update(dev, sa, &wstats);
3259 #endif /* WIRELESS_SPY */
3260 OUT4500( apriv, EVACK, EV_RX);
3262 if (test_bit(FLAG_802_11, &apriv->flags)) {
3263 skb->mac.raw = skb->data;
3264 skb->pkt_type = PACKET_OTHERHOST;
3265 skb->dev = apriv->wifidev;
3266 skb->protocol = htons(ETH_P_802_2);
3269 skb->protocol = eth_type_trans(skb,dev);
3271 skb->dev->last_rx = jiffies;
3272 skb->ip_summed = CHECKSUM_NONE;
3278 /* Check to see if a packet has been transmitted */
3279 if ( status & ( EV_TX|EV_TXCPY|EV_TXEXC ) ) {
3284 if (test_bit(FLAG_MPI,&apriv->flags)) {
3285 unsigned long flags;
3287 if (status & EV_TXEXC)
3288 get_tx_error(apriv, -1);